diff options
Diffstat (limited to 'drivers/usb')
145 files changed, 5896 insertions, 1859 deletions
diff --git a/drivers/usb/chipidea/Kconfig b/drivers/usb/chipidea/Kconfig index 785f0ed037f7..ee34e9046f7e 100644 --- a/drivers/usb/chipidea/Kconfig +++ b/drivers/usb/chipidea/Kconfig @@ -3,6 +3,7 @@ config USB_CHIPIDEA depends on ((USB_EHCI_HCD && USB_GADGET) || (USB_EHCI_HCD && !USB_GADGET) || (!USB_EHCI_HCD && USB_GADGET)) && HAS_DMA select EXTCON select RESET_CONTROLLER + select USB_ULPI_BUS help Say Y here if your system has a dual role high speed USB controller based on ChipIdea silicon IP. It supports: @@ -38,12 +39,4 @@ config USB_CHIPIDEA_HOST help Say Y here to enable host controller functionality of the ChipIdea driver. - -config USB_CHIPIDEA_ULPI - bool "ChipIdea ULPI PHY support" - depends on USB_ULPI_BUS=y || USB_ULPI_BUS=USB_CHIPIDEA - help - Say Y here if you have a ULPI PHY attached to your ChipIdea - controller. - endif diff --git a/drivers/usb/chipidea/Makefile b/drivers/usb/chipidea/Makefile index e3d5e728fa53..12df94f78f72 100644 --- a/drivers/usb/chipidea/Makefile +++ b/drivers/usb/chipidea/Makefile @@ -1,11 +1,10 @@ # SPDX-License-Identifier: GPL-2.0 obj-$(CONFIG_USB_CHIPIDEA) += ci_hdrc.o -ci_hdrc-y := core.o otg.o debug.o +ci_hdrc-y := core.o otg.o debug.o ulpi.o ci_hdrc-$(CONFIG_USB_CHIPIDEA_UDC) += udc.o ci_hdrc-$(CONFIG_USB_CHIPIDEA_HOST) += host.o ci_hdrc-$(CONFIG_USB_OTG_FSM) += otg_fsm.o -ci_hdrc-$(CONFIG_USB_CHIPIDEA_ULPI) += ulpi.o # Glue/Bridge layers go here diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h index 0bf244d50544..6a2cc5cd0281 100644 --- a/drivers/usb/chipidea/ci.h +++ b/drivers/usb/chipidea/ci.h @@ -240,10 +240,8 @@ struct ci_hdrc { struct ci_hdrc_platform_data *platdata; int vbus_active; -#ifdef CONFIG_USB_CHIPIDEA_ULPI struct ulpi *ulpi; struct ulpi_ops ulpi_ops; -#endif struct phy *phy; /* old usb_phy interface */ struct usb_phy *usb_phy; @@ -426,15 +424,9 @@ static inline bool ci_otg_is_fsm_mode(struct ci_hdrc *ci) #endif } -#if IS_ENABLED(CONFIG_USB_CHIPIDEA_ULPI) int ci_ulpi_init(struct ci_hdrc *ci); void ci_ulpi_exit(struct ci_hdrc *ci); int ci_ulpi_resume(struct ci_hdrc *ci); -#else -static inline int ci_ulpi_init(struct ci_hdrc *ci) { return 0; } -static inline void ci_ulpi_exit(struct ci_hdrc *ci) { } -static inline int ci_ulpi_resume(struct ci_hdrc *ci) { return 0; } -#endif u32 hw_read_intr_enable(struct ci_hdrc *ci); diff --git a/drivers/usb/chipidea/ci_hdrc_tegra.c b/drivers/usb/chipidea/ci_hdrc_tegra.c index 7f4d2b6af37a..772851bee99b 100644 --- a/drivers/usb/chipidea/ci_hdrc_tegra.c +++ b/drivers/usb/chipidea/ci_hdrc_tegra.c @@ -33,11 +33,11 @@ static const struct tegra_udc_soc_info tegra30_udc_soc_info = { }; static const struct tegra_udc_soc_info tegra114_udc_soc_info = { - .flags = 0, + .flags = CI_HDRC_REQUIRES_ALIGNED_DMA, }; static const struct tegra_udc_soc_info tegra124_udc_soc_info = { - .flags = 0, + .flags = CI_HDRC_REQUIRES_ALIGNED_DMA, }; static const struct of_device_id tegra_udc_of_match[] = { diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c index af45aa3222b5..4638d9b066be 100644 --- a/drivers/usb/chipidea/host.c +++ b/drivers/usb/chipidea/host.c @@ -124,8 +124,11 @@ static int host_start(struct ci_hdrc *ci) hcd->power_budget = ci->platdata->power_budget; hcd->tpl_support = ci->platdata->tpl_support; - if (ci->phy || ci->usb_phy) + if (ci->phy || ci->usb_phy) { hcd->skip_phy_initialization = 1; + if (ci->usb_phy) + hcd->usb_phy = ci->usb_phy; + } ehci = hcd_to_ehci(hcd); ehci->caps = ci->hw_bank.cap; diff --git a/drivers/usb/chipidea/ulpi.c b/drivers/usb/chipidea/ulpi.c index 6da42dcd2888..dfec07e8ae1d 100644 --- a/drivers/usb/chipidea/ulpi.c +++ b/drivers/usb/chipidea/ulpi.c @@ -95,6 +95,9 @@ int ci_ulpi_resume(struct ci_hdrc *ci) { int cnt = 100000; + if (ci->platdata->phy_mode != USBPHY_INTERFACE_MODE_ULPI) + return 0; + while (cnt-- > 0) { if (hw_read(ci, OP_ULPI_VIEWPORT, ULPI_SYNC_STATE)) return 0; diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c index 7b366a6c0b49..27346d69f393 100644 --- a/drivers/usb/class/cdc-acm.c +++ b/drivers/usb/class/cdc-acm.c @@ -276,6 +276,7 @@ static void acm_process_notification(struct acm *acm, unsigned char *buf) { int newctrl; int difference; + unsigned long flags; struct usb_cdc_notification *dr = (struct usb_cdc_notification *)buf; unsigned char *data = buf + sizeof(struct usb_cdc_notification); @@ -303,7 +304,7 @@ static void acm_process_notification(struct acm *acm, unsigned char *buf) } difference = acm->ctrlin ^ newctrl; - spin_lock(&acm->read_lock); + spin_lock_irqsave(&acm->read_lock, flags); acm->ctrlin = newctrl; acm->oldcount = acm->iocount; @@ -321,7 +322,7 @@ static void acm_process_notification(struct acm *acm, unsigned char *buf) acm->iocount.parity++; if (difference & ACM_CTRL_OVERRUN) acm->iocount.overrun++; - spin_unlock(&acm->read_lock); + spin_unlock_irqrestore(&acm->read_lock, flags); if (difference) wake_up_all(&acm->wioctl); @@ -1378,6 +1379,9 @@ made_compressed_probe: if (acm == NULL) goto alloc_fail; + tty_port_init(&acm->port); + acm->port.ops = &acm_port_ops; + minor = acm_alloc_minor(acm); if (minor < 0) goto alloc_fail1; @@ -1413,22 +1417,20 @@ made_compressed_probe: acm->out = usb_sndintpipe(usb_dev, epwrite->bEndpointAddress); else acm->out = usb_sndbulkpipe(usb_dev, epwrite->bEndpointAddress); - tty_port_init(&acm->port); - acm->port.ops = &acm_port_ops; init_usb_anchor(&acm->delayed); acm->quirks = quirks; buf = usb_alloc_coherent(usb_dev, ctrlsize, GFP_KERNEL, &acm->ctrl_dma); if (!buf) - goto alloc_fail2; + goto alloc_fail1; acm->ctrl_buffer = buf; if (acm_write_buffers_alloc(acm) < 0) - goto alloc_fail4; + goto alloc_fail2; acm->ctrlurb = usb_alloc_urb(0, GFP_KERNEL); if (!acm->ctrlurb) - goto alloc_fail5; + goto alloc_fail3; for (i = 0; i < num_rx_buf; i++) { struct acm_rb *rb = &(acm->read_buffers[i]); @@ -1437,13 +1439,13 @@ made_compressed_probe: rb->base = usb_alloc_coherent(acm->dev, readsize, GFP_KERNEL, &rb->dma); if (!rb->base) - goto alloc_fail6; + goto alloc_fail4; rb->index = i; rb->instance = acm; urb = usb_alloc_urb(0, GFP_KERNEL); if (!urb) - goto alloc_fail6; + goto alloc_fail4; urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; urb->transfer_dma = rb->dma; @@ -1465,7 +1467,7 @@ made_compressed_probe: snd->urb = usb_alloc_urb(0, GFP_KERNEL); if (snd->urb == NULL) - goto alloc_fail7; + goto alloc_fail5; if (usb_endpoint_xfer_int(epwrite)) usb_fill_int_urb(snd->urb, usb_dev, acm->out, @@ -1483,7 +1485,7 @@ made_compressed_probe: i = device_create_file(&intf->dev, &dev_attr_bmCapabilities); if (i < 0) - goto alloc_fail7; + goto alloc_fail5; if (h.usb_cdc_country_functional_desc) { /* export the country data */ struct usb_cdc_country_functional_desc * cfd = @@ -1542,7 +1544,7 @@ skip_countries: &control_interface->dev); if (IS_ERR(tty_dev)) { rv = PTR_ERR(tty_dev); - goto alloc_fail8; + goto alloc_fail6; } if (quirks & CLEAR_HALT_CONDITIONS) { @@ -1551,7 +1553,7 @@ skip_countries: } return 0; -alloc_fail8: +alloc_fail6: if (acm->country_codes) { device_remove_file(&acm->control->dev, &dev_attr_wCountryCodes); @@ -1560,23 +1562,21 @@ alloc_fail8: kfree(acm->country_codes); } device_remove_file(&acm->control->dev, &dev_attr_bmCapabilities); -alloc_fail7: +alloc_fail5: usb_set_intfdata(intf, NULL); for (i = 0; i < ACM_NW; i++) usb_free_urb(acm->wb[i].urb); -alloc_fail6: +alloc_fail4: for (i = 0; i < num_rx_buf; i++) usb_free_urb(acm->read_urbs[i]); acm_read_buffers_free(acm); usb_free_urb(acm->ctrlurb); -alloc_fail5: +alloc_fail3: acm_write_buffers_free(acm); -alloc_fail4: - usb_free_coherent(usb_dev, ctrlsize, acm->ctrl_buffer, acm->ctrl_dma); alloc_fail2: - acm_release_minor(acm); + usb_free_coherent(usb_dev, ctrlsize, acm->ctrl_buffer, acm->ctrl_dma); alloc_fail1: - kfree(acm); + tty_port_put(&acm->port); alloc_fail: return rv; } @@ -1758,6 +1758,9 @@ static const struct usb_device_id acm_ids[] = { { USB_DEVICE(0x11ca, 0x0201), /* VeriFone Mx870 Gadget Serial */ .driver_info = SINGLE_RX_URB, }, + { USB_DEVICE(0x1965, 0x0018), /* Uniden UBC125XLT */ + .driver_info = NO_UNION_NORMAL, /* has no union descriptor */ + }, { USB_DEVICE(0x22b8, 0x7000), /* Motorola Q Phone */ .driver_info = NO_UNION_NORMAL, /* has no union descriptor */ }, @@ -1828,6 +1831,9 @@ static const struct usb_device_id acm_ids[] = { { USB_DEVICE(0x09d8, 0x0320), /* Elatec GmbH TWN3 */ .driver_info = NO_UNION_NORMAL, /* has misplaced union descriptor */ }, + { USB_DEVICE(0x0ca6, 0xa050), /* Castles VEGA3000 */ + .driver_info = NO_UNION_NORMAL, /* reports zero length descriptor */ + }, { USB_DEVICE(0x2912, 0x0001), /* ATOL FPrint */ .driver_info = CLEAR_HALT_CONDITIONS, diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index a0d284ef3f40..bec581fb7c63 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -96,6 +96,7 @@ struct wdm_device { struct mutex rlock; wait_queue_head_t wait; struct work_struct rxwork; + struct work_struct service_outs_intr; int werr; int rerr; int resp_count; @@ -141,26 +142,26 @@ found: static void wdm_out_callback(struct urb *urb) { struct wdm_device *desc; + unsigned long flags; + desc = urb->context; - spin_lock(&desc->iuspin); + spin_lock_irqsave(&desc->iuspin, flags); desc->werr = urb->status; - spin_unlock(&desc->iuspin); + spin_unlock_irqrestore(&desc->iuspin, flags); kfree(desc->outbuf); desc->outbuf = NULL; clear_bit(WDM_IN_USE, &desc->flags); wake_up(&desc->wait); } -/* forward declaration */ -static int service_outstanding_interrupt(struct wdm_device *desc); - static void wdm_in_callback(struct urb *urb) { + unsigned long flags; struct wdm_device *desc = urb->context; int status = urb->status; int length = urb->actual_length; - spin_lock(&desc->iuspin); + spin_lock_irqsave(&desc->iuspin, flags); clear_bit(WDM_RESPONDING, &desc->flags); if (status) { @@ -209,8 +210,6 @@ static void wdm_in_callback(struct urb *urb) } } skip_error: - set_bit(WDM_READ, &desc->flags); - wake_up(&desc->wait); if (desc->rerr) { /* @@ -219,14 +218,17 @@ skip_error: * We should respond to further attempts from the device to send * data, so that we can get unstuck. */ - service_outstanding_interrupt(desc); + schedule_work(&desc->service_outs_intr); + } else { + set_bit(WDM_READ, &desc->flags); + wake_up(&desc->wait); } - - spin_unlock(&desc->iuspin); + spin_unlock_irqrestore(&desc->iuspin, flags); } static void wdm_int_callback(struct urb *urb) { + unsigned long flags; int rv = 0; int responding; int status = urb->status; @@ -286,7 +288,7 @@ static void wdm_int_callback(struct urb *urb) goto exit; } - spin_lock(&desc->iuspin); + spin_lock_irqsave(&desc->iuspin, flags); responding = test_and_set_bit(WDM_RESPONDING, &desc->flags); if (!desc->resp_count++ && !responding && !test_bit(WDM_DISCONNECTING, &desc->flags) @@ -294,7 +296,7 @@ static void wdm_int_callback(struct urb *urb) rv = usb_submit_urb(desc->response, GFP_ATOMIC); dev_dbg(&desc->intf->dev, "submit response URB %d\n", rv); } - spin_unlock(&desc->iuspin); + spin_unlock_irqrestore(&desc->iuspin, flags); if (rv < 0) { clear_bit(WDM_RESPONDING, &desc->flags); if (rv == -EPERM) @@ -758,6 +760,21 @@ static void wdm_rxwork(struct work_struct *work) } } +static void service_interrupt_work(struct work_struct *work) +{ + struct wdm_device *desc; + + desc = container_of(work, struct wdm_device, service_outs_intr); + + spin_lock_irq(&desc->iuspin); + service_outstanding_interrupt(desc); + if (!desc->resp_count) { + set_bit(WDM_READ, &desc->flags); + wake_up(&desc->wait); + } + spin_unlock_irq(&desc->iuspin); +} + /* --- hotplug --- */ static int wdm_create(struct usb_interface *intf, struct usb_endpoint_descriptor *ep, @@ -779,6 +796,7 @@ static int wdm_create(struct usb_interface *intf, struct usb_endpoint_descriptor desc->inum = cpu_to_le16((u16)intf->cur_altsetting->desc.bInterfaceNumber); desc->intf = intf; INIT_WORK(&desc->rxwork, wdm_rxwork); + INIT_WORK(&desc->service_outs_intr, service_interrupt_work); rv = -EINVAL; if (!usb_endpoint_is_int_in(ep)) @@ -964,6 +982,7 @@ static void wdm_disconnect(struct usb_interface *intf) mutex_lock(&desc->wlock); kill_urbs(desc); cancel_work_sync(&desc->rxwork); + cancel_work_sync(&desc->service_outs_intr); mutex_unlock(&desc->wlock); mutex_unlock(&desc->rlock); @@ -1006,6 +1025,7 @@ static int wdm_suspend(struct usb_interface *intf, pm_message_t message) /* callback submits work - order is essential */ kill_urbs(desc); cancel_work_sync(&desc->rxwork); + cancel_work_sync(&desc->service_outs_intr); } if (!PMSG_IS_AUTO(message)) { mutex_unlock(&desc->wlock); @@ -1065,6 +1085,7 @@ static int wdm_pre_reset(struct usb_interface *intf) mutex_lock(&desc->wlock); kill_urbs(desc); cancel_work_sync(&desc->rxwork); + cancel_work_sync(&desc->service_outs_intr); return 0; } diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c index d058d7a31e7c..407a7a6198a2 100644 --- a/drivers/usb/class/usblp.c +++ b/drivers/usb/class/usblp.c @@ -292,6 +292,7 @@ static void usblp_bulk_read(struct urb *urb) { struct usblp *usblp = urb->context; int status = urb->status; + unsigned long flags; if (usblp->present && usblp->used) { if (status) @@ -299,14 +300,14 @@ static void usblp_bulk_read(struct urb *urb) "nonzero read bulk status received: %d\n", usblp->minor, status); } - spin_lock(&usblp->lock); + spin_lock_irqsave(&usblp->lock, flags); if (status < 0) usblp->rstatus = status; else usblp->rstatus = urb->actual_length; usblp->rcomplete = 1; wake_up(&usblp->rwait); - spin_unlock(&usblp->lock); + spin_unlock_irqrestore(&usblp->lock, flags); usb_free_urb(urb); } @@ -315,6 +316,7 @@ static void usblp_bulk_write(struct urb *urb) { struct usblp *usblp = urb->context; int status = urb->status; + unsigned long flags; if (usblp->present && usblp->used) { if (status) @@ -322,7 +324,7 @@ static void usblp_bulk_write(struct urb *urb) "nonzero write bulk status received: %d\n", usblp->minor, status); } - spin_lock(&usblp->lock); + spin_lock_irqsave(&usblp->lock, flags); if (status < 0) usblp->wstatus = status; else @@ -330,7 +332,7 @@ static void usblp_bulk_write(struct urb *urb) usblp->no_paper = 0; usblp->wcomplete = 1; wake_up(&usblp->wwait); - spin_unlock(&usblp->lock); + spin_unlock_irqrestore(&usblp->lock, flags); usb_free_urb(urb); } diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c index 529295a17579..83ffa5a14c3d 100644 --- a/drivers/usb/class/usbtmc.c +++ b/drivers/usb/class/usbtmc.c @@ -18,6 +18,7 @@ #include <linux/poll.h> #include <linux/mutex.h> #include <linux/usb.h> +#include <linux/compat.h> #include <linux/usb/tmc.h> @@ -30,6 +31,8 @@ */ #define USBTMC_SIZE_IOBUFFER 2048 +/* Minimum USB timeout (in milliseconds) */ +#define USBTMC_MIN_TIMEOUT 100 /* Default USB timeout (in milliseconds) */ #define USBTMC_TIMEOUT 5000 @@ -67,6 +70,7 @@ struct usbtmc_device_data { const struct usb_device_id *id; struct usb_device *usb_dev; struct usb_interface *intf; + struct list_head file_list; unsigned int bulk_in; unsigned int bulk_out; @@ -87,7 +91,6 @@ struct usbtmc_device_data { int iin_interval; struct urb *iin_urb; u16 iin_wMaxPacketSize; - atomic_t srq_asserted; /* coalesced usb488_caps from usbtmc_dev_capabilities */ __u8 usb488_caps; @@ -104,9 +107,25 @@ struct usbtmc_device_data { struct mutex io_mutex; /* only one i/o function running at a time */ wait_queue_head_t waitq; struct fasync_struct *fasync; + spinlock_t dev_lock; /* lock for file_list */ }; #define to_usbtmc_data(d) container_of(d, struct usbtmc_device_data, kref) +/* + * This structure holds private data for each USBTMC file handle. + */ +struct usbtmc_file_data { + struct usbtmc_device_data *data; + struct list_head file_elem; + + u32 timeout; + u8 srq_byte; + atomic_t srq_asserted; + u8 eom_val; + u8 term_char; + bool term_char_enabled; +}; + /* Forward declarations */ static struct usb_driver usbtmc_driver; @@ -122,7 +141,7 @@ static int usbtmc_open(struct inode *inode, struct file *filp) { struct usb_interface *intf; struct usbtmc_device_data *data; - int retval = 0; + struct usbtmc_file_data *file_data; intf = usb_find_interface(&usbtmc_driver, iminor(inode)); if (!intf) { @@ -130,21 +149,51 @@ static int usbtmc_open(struct inode *inode, struct file *filp) return -ENODEV; } + file_data = kzalloc(sizeof(*file_data), GFP_KERNEL); + if (!file_data) + return -ENOMEM; + data = usb_get_intfdata(intf); /* Protect reference to data from file structure until release */ kref_get(&data->kref); + mutex_lock(&data->io_mutex); + file_data->data = data; + + /* copy default values from device settings */ + file_data->timeout = USBTMC_TIMEOUT; + file_data->term_char = data->TermChar; + file_data->term_char_enabled = data->TermCharEnabled; + file_data->eom_val = 1; + + INIT_LIST_HEAD(&file_data->file_elem); + spin_lock_irq(&data->dev_lock); + list_add_tail(&file_data->file_elem, &data->file_list); + spin_unlock_irq(&data->dev_lock); + mutex_unlock(&data->io_mutex); + /* Store pointer in file structure's private data field */ - filp->private_data = data; + filp->private_data = file_data; - return retval; + return 0; } static int usbtmc_release(struct inode *inode, struct file *file) { - struct usbtmc_device_data *data = file->private_data; + struct usbtmc_file_data *file_data = file->private_data; - kref_put(&data->kref, usbtmc_delete); + /* prevent IO _AND_ usbtmc_interrupt */ + mutex_lock(&file_data->data->io_mutex); + spin_lock_irq(&file_data->data->dev_lock); + + list_del(&file_data->file_elem); + + spin_unlock_irq(&file_data->data->dev_lock); + mutex_unlock(&file_data->data->io_mutex); + + kref_put(&file_data->data->kref, usbtmc_delete); + file_data->data = NULL; + kfree(file_data); return 0; } @@ -369,10 +418,12 @@ exit: return rv; } -static int usbtmc488_ioctl_read_stb(struct usbtmc_device_data *data, +static int usbtmc488_ioctl_read_stb(struct usbtmc_file_data *file_data, void __user *arg) { + struct usbtmc_device_data *data = file_data->data; struct device *dev = &data->intf->dev; + int srq_asserted = 0; u8 *buffer; u8 tag; __u8 stb; @@ -381,15 +432,25 @@ static int usbtmc488_ioctl_read_stb(struct usbtmc_device_data *data, dev_dbg(dev, "Enter ioctl_read_stb iin_ep_present: %d\n", data->iin_ep_present); + spin_lock_irq(&data->dev_lock); + srq_asserted = atomic_xchg(&file_data->srq_asserted, srq_asserted); + if (srq_asserted) { + /* a STB with SRQ is already received */ + stb = file_data->srq_byte; + spin_unlock_irq(&data->dev_lock); + rv = put_user(stb, (__u8 __user *)arg); + dev_dbg(dev, "stb:0x%02x with srq received %d\n", + (unsigned int)stb, rv); + return rv; + } + spin_unlock_irq(&data->dev_lock); + buffer = kmalloc(8, GFP_KERNEL); if (!buffer) return -ENOMEM; atomic_set(&data->iin_data_valid, 0); - /* must issue read_stb before using poll or select */ - atomic_set(&data->srq_asserted, 0); - rv = usb_control_msg(data->usb_dev, usb_rcvctrlpipe(data->usb_dev, 0), USBTMC488_REQUEST_READ_STATUS_BYTE, @@ -412,7 +473,7 @@ static int usbtmc488_ioctl_read_stb(struct usbtmc_device_data *data, rv = wait_event_interruptible_timeout( data->waitq, atomic_read(&data->iin_data_valid) != 0, - USBTMC_TIMEOUT); + file_data->timeout); if (rv < 0) { dev_dbg(dev, "wait interrupted %d\n", rv); goto exit; @@ -420,7 +481,7 @@ static int usbtmc488_ioctl_read_stb(struct usbtmc_device_data *data, if (rv == 0) { dev_dbg(dev, "wait timed out\n"); - rv = -ETIME; + rv = -ETIMEDOUT; goto exit; } @@ -435,9 +496,8 @@ static int usbtmc488_ioctl_read_stb(struct usbtmc_device_data *data, stb = buffer[2]; } - rv = copy_to_user(arg, &stb, sizeof(stb)); - if (rv) - rv = -EFAULT; + rv = put_user(stb, (__u8 __user *)arg); + dev_dbg(dev, "stb:0x%02x received %d\n", (unsigned int)stb, rv); exit: /* bump interrupt bTag */ @@ -506,6 +566,51 @@ static int usbtmc488_ioctl_simple(struct usbtmc_device_data *data, } /* + * Sends a TRIGGER Bulk-OUT command message + * See the USBTMC-USB488 specification, Table 2. + * + * Also updates bTag_last_write. + */ +static int usbtmc488_ioctl_trigger(struct usbtmc_file_data *file_data) +{ + struct usbtmc_device_data *data = file_data->data; + int retval; + u8 *buffer; + int actual; + + buffer = kzalloc(USBTMC_HEADER_SIZE, GFP_KERNEL); + if (!buffer) + return -ENOMEM; + + buffer[0] = 128; + buffer[1] = data->bTag; + buffer[2] = ~data->bTag; + + retval = usb_bulk_msg(data->usb_dev, + usb_sndbulkpipe(data->usb_dev, + data->bulk_out), + buffer, USBTMC_HEADER_SIZE, + &actual, file_data->timeout); + + /* Store bTag (in case we need to abort) */ + data->bTag_last_write = data->bTag; + + /* Increment bTag -- and increment again if zero */ + data->bTag++; + if (!data->bTag) + data->bTag++; + + kfree(buffer); + if (retval < 0) { + dev_err(&data->intf->dev, "%s returned %d\n", + __func__, retval); + return retval; + } + + return 0; +} + +/* * Sends a REQUEST_DEV_DEP_MSG_IN message on the Bulk-OUT endpoint. * @transfer_size: number of bytes to request from the device. * @@ -513,8 +618,10 @@ static int usbtmc488_ioctl_simple(struct usbtmc_device_data *data, * * Also updates bTag_last_write. */ -static int send_request_dev_dep_msg_in(struct usbtmc_device_data *data, size_t transfer_size) +static int send_request_dev_dep_msg_in(struct usbtmc_file_data *file_data, + size_t transfer_size) { + struct usbtmc_device_data *data = file_data->data; int retval; u8 *buffer; int actual; @@ -533,9 +640,9 @@ static int send_request_dev_dep_msg_in(struct usbtmc_device_data *data, size_t t buffer[5] = transfer_size >> 8; buffer[6] = transfer_size >> 16; buffer[7] = transfer_size >> 24; - buffer[8] = data->TermCharEnabled * 2; + buffer[8] = file_data->term_char_enabled * 2; /* Use term character? */ - buffer[9] = data->TermChar; + buffer[9] = file_data->term_char; buffer[10] = 0; /* Reserved */ buffer[11] = 0; /* Reserved */ @@ -543,7 +650,8 @@ static int send_request_dev_dep_msg_in(struct usbtmc_device_data *data, size_t t retval = usb_bulk_msg(data->usb_dev, usb_sndbulkpipe(data->usb_dev, data->bulk_out), - buffer, USBTMC_HEADER_SIZE, &actual, USBTMC_TIMEOUT); + buffer, USBTMC_HEADER_SIZE, + &actual, file_data->timeout); /* Store bTag (in case we need to abort) */ data->bTag_last_write = data->bTag; @@ -565,6 +673,7 @@ static int send_request_dev_dep_msg_in(struct usbtmc_device_data *data, size_t t static ssize_t usbtmc_read(struct file *filp, char __user *buf, size_t count, loff_t *f_pos) { + struct usbtmc_file_data *file_data; struct usbtmc_device_data *data; struct device *dev; u32 n_characters; @@ -576,7 +685,8 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf, size_t this_part; /* Get pointer to private data structure */ - data = filp->private_data; + file_data = filp->private_data; + data = file_data->data; dev = &data->intf->dev; buffer = kmalloc(USBTMC_SIZE_IOBUFFER, GFP_KERNEL); @@ -591,7 +701,7 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf, dev_dbg(dev, "usb_bulk_msg_in: count(%zu)\n", count); - retval = send_request_dev_dep_msg_in(data, count); + retval = send_request_dev_dep_msg_in(file_data, count); if (retval < 0) { if (data->auto_abort) @@ -610,7 +720,7 @@ static ssize_t usbtmc_read(struct file *filp, char __user *buf, usb_rcvbulkpipe(data->usb_dev, data->bulk_in), buffer, USBTMC_SIZE_IOBUFFER, &actual, - USBTMC_TIMEOUT); + file_data->timeout); dev_dbg(dev, "usb_bulk_msg: retval(%u), done(%zu), remaining(%zu), actual(%d)\n", retval, done, remaining, actual); @@ -721,6 +831,7 @@ exit: static ssize_t usbtmc_write(struct file *filp, const char __user *buf, size_t count, loff_t *f_pos) { + struct usbtmc_file_data *file_data; struct usbtmc_device_data *data; u8 *buffer; int retval; @@ -730,7 +841,8 @@ static ssize_t usbtmc_write(struct file *filp, const char __user *buf, int done; int this_part; - data = filp->private_data; + file_data = filp->private_data; + data = file_data->data; buffer = kmalloc(USBTMC_SIZE_IOBUFFER, GFP_KERNEL); if (!buffer) @@ -751,7 +863,7 @@ static ssize_t usbtmc_write(struct file *filp, const char __user *buf, buffer[8] = 0; } else { this_part = remaining; - buffer[8] = 1; + buffer[8] = file_data->eom_val; } /* Setup IO buffer for DEV_DEP_MSG_OUT message */ @@ -781,7 +893,7 @@ static ssize_t usbtmc_write(struct file *filp, const char __user *buf, usb_sndbulkpipe(data->usb_dev, data->bulk_out), buffer, n_bytes, - &actual, USBTMC_TIMEOUT); + &actual, file_data->timeout); if (retval != 0) break; n_bytes -= actual; @@ -1138,12 +1250,91 @@ exit: return rv; } +/* + * Get the usb timeout value + */ +static int usbtmc_ioctl_get_timeout(struct usbtmc_file_data *file_data, + void __user *arg) +{ + u32 timeout; + + timeout = file_data->timeout; + + return put_user(timeout, (__u32 __user *)arg); +} + +/* + * Set the usb timeout value + */ +static int usbtmc_ioctl_set_timeout(struct usbtmc_file_data *file_data, + void __user *arg) +{ + u32 timeout; + + if (get_user(timeout, (__u32 __user *)arg)) + return -EFAULT; + + /* Note that timeout = 0 means + * MAX_SCHEDULE_TIMEOUT in usb_control_msg + */ + if (timeout < USBTMC_MIN_TIMEOUT) + return -EINVAL; + + file_data->timeout = timeout; + + return 0; +} + +/* + * enables/disables sending EOM on write + */ +static int usbtmc_ioctl_eom_enable(struct usbtmc_file_data *file_data, + void __user *arg) +{ + u8 eom_enable; + + if (copy_from_user(&eom_enable, arg, sizeof(eom_enable))) + return -EFAULT; + + if (eom_enable > 1) + return -EINVAL; + + file_data->eom_val = eom_enable; + + return 0; +} + +/* + * Configure termination character for read() + */ +static int usbtmc_ioctl_config_termc(struct usbtmc_file_data *file_data, + void __user *arg) +{ + struct usbtmc_termchar termc; + + if (copy_from_user(&termc, arg, sizeof(termc))) + return -EFAULT; + + if ((termc.term_char_enabled > 1) || + (termc.term_char_enabled && + !(file_data->data->capabilities.device_capabilities & 1))) + return -EINVAL; + + file_data->term_char = termc.term_char; + file_data->term_char_enabled = termc.term_char_enabled; + + return 0; +} + static long usbtmc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { + struct usbtmc_file_data *file_data; struct usbtmc_device_data *data; int retval = -EBADRQC; - data = file->private_data; + file_data = file->private_data; + data = file_data->data; + mutex_lock(&data->io_mutex); if (data->zombie) { retval = -ENODEV; @@ -1175,6 +1366,26 @@ static long usbtmc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) retval = usbtmc_ioctl_abort_bulk_in(data); break; + case USBTMC_IOCTL_GET_TIMEOUT: + retval = usbtmc_ioctl_get_timeout(file_data, + (void __user *)arg); + break; + + case USBTMC_IOCTL_SET_TIMEOUT: + retval = usbtmc_ioctl_set_timeout(file_data, + (void __user *)arg); + break; + + case USBTMC_IOCTL_EOM_ENABLE: + retval = usbtmc_ioctl_eom_enable(file_data, + (void __user *)arg); + break; + + case USBTMC_IOCTL_CONFIG_TERMCHAR: + retval = usbtmc_ioctl_config_termc(file_data, + (void __user *)arg); + break; + case USBTMC488_IOCTL_GET_CAPS: retval = copy_to_user((void __user *)arg, &data->usb488_caps, @@ -1184,7 +1395,8 @@ static long usbtmc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) break; case USBTMC488_IOCTL_READ_STB: - retval = usbtmc488_ioctl_read_stb(data, (void __user *)arg); + retval = usbtmc488_ioctl_read_stb(file_data, + (void __user *)arg); break; case USBTMC488_IOCTL_REN_CONTROL: @@ -1201,6 +1413,10 @@ static long usbtmc_ioctl(struct file *file, unsigned int cmd, unsigned long arg) retval = usbtmc488_ioctl_simple(data, (void __user *)arg, USBTMC488_REQUEST_LOCAL_LOCKOUT); break; + + case USBTMC488_IOCTL_TRIGGER: + retval = usbtmc488_ioctl_trigger(file_data); + break; } skip_io_on_zombie: @@ -1210,14 +1426,15 @@ skip_io_on_zombie: static int usbtmc_fasync(int fd, struct file *file, int on) { - struct usbtmc_device_data *data = file->private_data; + struct usbtmc_file_data *file_data = file->private_data; - return fasync_helper(fd, file, on, &data->fasync); + return fasync_helper(fd, file, on, &file_data->data->fasync); } static __poll_t usbtmc_poll(struct file *file, poll_table *wait) { - struct usbtmc_device_data *data = file->private_data; + struct usbtmc_file_data *file_data = file->private_data; + struct usbtmc_device_data *data = file_data->data; __poll_t mask; mutex_lock(&data->io_mutex); @@ -1229,7 +1446,7 @@ static __poll_t usbtmc_poll(struct file *file, poll_table *wait) poll_wait(file, &data->waitq, wait); - mask = (atomic_read(&data->srq_asserted)) ? EPOLLIN | EPOLLRDNORM : 0; + mask = (atomic_read(&file_data->srq_asserted)) ? EPOLLPRI : 0; no_poll: mutex_unlock(&data->io_mutex); @@ -1243,6 +1460,9 @@ static const struct file_operations fops = { .open = usbtmc_open, .release = usbtmc_release, .unlocked_ioctl = usbtmc_ioctl, +#ifdef CONFIG_COMPAT + .compat_ioctl = usbtmc_ioctl, +#endif .fasync = usbtmc_fasync, .poll = usbtmc_poll, .llseek = default_llseek, @@ -1276,15 +1496,33 @@ static void usbtmc_interrupt(struct urb *urb) } /* check for SRQ notification */ if (data->iin_buffer[0] == 0x81) { + unsigned long flags; + struct list_head *elem; + if (data->fasync) kill_fasync(&data->fasync, - SIGIO, POLL_IN); + SIGIO, POLL_PRI); - atomic_set(&data->srq_asserted, 1); - wake_up_interruptible(&data->waitq); + spin_lock_irqsave(&data->dev_lock, flags); + list_for_each(elem, &data->file_list) { + struct usbtmc_file_data *file_data; + + file_data = list_entry(elem, + struct usbtmc_file_data, + file_elem); + file_data->srq_byte = data->iin_buffer[1]; + atomic_set(&file_data->srq_asserted, 1); + } + spin_unlock_irqrestore(&data->dev_lock, flags); + + dev_dbg(dev, "srq received bTag %x stb %x\n", + (unsigned int)data->iin_buffer[0], + (unsigned int)data->iin_buffer[1]); + wake_up_interruptible_all(&data->waitq); goto exit; } - dev_warn(dev, "invalid notification: %x\n", data->iin_buffer[0]); + dev_warn(dev, "invalid notification: %x\n", + data->iin_buffer[0]); break; case -EOVERFLOW: dev_err(dev, "overflow with length %d, actual length is %d\n", @@ -1295,6 +1533,7 @@ static void usbtmc_interrupt(struct urb *urb) case -ESHUTDOWN: case -EILSEQ: case -ETIME: + case -EPIPE: /* urb terminated, clean up */ dev_dbg(dev, "urb terminated, status: %d\n", status); return; @@ -1339,7 +1578,9 @@ static int usbtmc_probe(struct usb_interface *intf, mutex_init(&data->io_mutex); init_waitqueue_head(&data->waitq); atomic_set(&data->iin_data_valid, 0); - atomic_set(&data->srq_asserted, 0); + INIT_LIST_HEAD(&data->file_list); + spin_lock_init(&data->dev_lock); + data->zombie = 0; /* Initialize USBTMC bTag and other fields */ @@ -1442,17 +1683,14 @@ err_put: static void usbtmc_disconnect(struct usb_interface *intf) { - struct usbtmc_device_data *data; - - dev_dbg(&intf->dev, "usbtmc_disconnect called\n"); + struct usbtmc_device_data *data = usb_get_intfdata(intf); - data = usb_get_intfdata(intf); usb_deregister_dev(intf, &usbtmc_class); sysfs_remove_group(&intf->dev.kobj, &capability_attr_grp); sysfs_remove_group(&intf->dev.kobj, &data_attr_grp); mutex_lock(&data->io_mutex); data->zombie = 1; - wake_up_all(&data->waitq); + wake_up_interruptible_all(&data->waitq); mutex_unlock(&data->io_mutex); usbtmc_free_int(data); kref_put(&data->kref, usbtmc_delete); diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 476dcc5f2da3..6ce77b33da61 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -585,9 +585,10 @@ static void async_completed(struct urb *urb) struct siginfo sinfo; struct pid *pid = NULL; const struct cred *cred = NULL; + unsigned long flags; int signr; - spin_lock(&ps->lock); + spin_lock_irqsave(&ps->lock, flags); list_move_tail(&as->asynclist, &ps->async_completed); as->status = urb->status; signr = as->signr; @@ -611,7 +612,7 @@ static void async_completed(struct urb *urb) cancel_bulk_urbs(ps, as->bulk_addr); wake_up(&ps->wait); - spin_unlock(&ps->lock); + spin_unlock_irqrestore(&ps->lock, flags); if (signr) { kill_pid_info_as_cred(sinfo.si_signo, &sinfo, pid, cred); diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index fcae521df29b..462ce49f683a 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1142,10 +1142,14 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) if (!udev || udev->state == USB_STATE_NOTATTACHED) { /* Tell hub_wq to disconnect the device or - * check for a new connection + * check for a new connection or over current condition. + * Based on USB2.0 Spec Section 11.12.5, + * C_PORT_OVER_CURRENT could be set while + * PORT_OVER_CURRENT is not. So check for any of them. */ if (udev || (portstatus & USB_PORT_STAT_CONNECTION) || - (portstatus & USB_PORT_STAT_OVERCURRENT)) + (portstatus & USB_PORT_STAT_OVERCURRENT) || + (portchange & USB_PORT_STAT_C_OVERCURRENT)) set_bit(port1, hub->change_bits); } else if (portstatus & USB_PORT_STAT_ENABLE) { @@ -3656,12 +3660,54 @@ static int hub_suspend(struct usb_interface *intf, pm_message_t msg) return 0; } +/* Report wakeup requests from the ports of a resuming root hub */ +static void report_wakeup_requests(struct usb_hub *hub) +{ + struct usb_device *hdev = hub->hdev; + struct usb_device *udev; + struct usb_hcd *hcd; + unsigned long resuming_ports; + int i; + + if (hdev->parent) + return; /* Not a root hub */ + + hcd = bus_to_hcd(hdev->bus); + if (hcd->driver->get_resuming_ports) { + + /* + * The get_resuming_ports() method returns a bitmap (origin 0) + * of ports which have started wakeup signaling but have not + * yet finished resuming. During system resume we will + * resume all the enabled ports, regardless of any wakeup + * signals, which means the wakeup requests would be lost. + * To prevent this, report them to the PM core here. + */ + resuming_ports = hcd->driver->get_resuming_ports(hcd); + for (i = 0; i < hdev->maxchild; ++i) { + if (test_bit(i, &resuming_ports)) { + udev = hub->ports[i]->child; + if (udev) + pm_wakeup_event(&udev->dev, 0); + } + } + } +} + static int hub_resume(struct usb_interface *intf) { struct usb_hub *hub = usb_get_intfdata(intf); dev_dbg(&intf->dev, "%s\n", __func__); hub_activate(hub, HUB_RESUME); + + /* + * This should be called only for system resume, not runtime resume. + * We can't tell the difference here, so some wakeup requests will be + * reported at the wrong time or more than once. This shouldn't + * matter much, so long as they do get reported. + */ + report_wakeup_requests(hub); return 0; } diff --git a/drivers/usb/core/ledtrig-usbport.c b/drivers/usb/core/ledtrig-usbport.c index d775ffea20c3..dc7f7fd71684 100644 --- a/drivers/usb/core/ledtrig-usbport.c +++ b/drivers/usb/core/ledtrig-usbport.c @@ -113,11 +113,17 @@ static ssize_t usbport_trig_port_store(struct device *dev, static struct attribute *ports_attrs[] = { NULL, }; + static const struct attribute_group ports_group = { .name = "ports", .attrs = ports_attrs, }; +static const struct attribute_group *ports_groups[] = { + &ports_group, + NULL +}; + /*************************************** * Adding & removing ports ***************************************/ @@ -298,61 +304,47 @@ static int usbport_trig_notify(struct notifier_block *nb, unsigned long action, return NOTIFY_DONE; } -static void usbport_trig_activate(struct led_classdev *led_cdev) +static int usbport_trig_activate(struct led_classdev *led_cdev) { struct usbport_trig_data *usbport_data; - int err; usbport_data = kzalloc(sizeof(*usbport_data), GFP_KERNEL); if (!usbport_data) - return; + return -ENOMEM; usbport_data->led_cdev = led_cdev; /* List of ports */ INIT_LIST_HEAD(&usbport_data->ports); - err = sysfs_create_group(&led_cdev->dev->kobj, &ports_group); - if (err) - goto err_free; usb_for_each_dev(usbport_data, usbport_trig_add_usb_dev_ports); usbport_trig_update_count(usbport_data); /* Notifications */ - usbport_data->nb.notifier_call = usbport_trig_notify, - led_cdev->trigger_data = usbport_data; + usbport_data->nb.notifier_call = usbport_trig_notify; + led_set_trigger_data(led_cdev, usbport_data); usb_register_notify(&usbport_data->nb); - led_cdev->activated = true; - return; - -err_free: - kfree(usbport_data); + return 0; } static void usbport_trig_deactivate(struct led_classdev *led_cdev) { - struct usbport_trig_data *usbport_data = led_cdev->trigger_data; + struct usbport_trig_data *usbport_data = led_get_trigger_data(led_cdev); struct usbport_trig_port *port, *tmp; - if (!led_cdev->activated) - return; - list_for_each_entry_safe(port, tmp, &usbport_data->ports, list) { usbport_trig_remove_port(usbport_data, port); } usb_unregister_notify(&usbport_data->nb); - sysfs_remove_group(&led_cdev->dev->kobj, &ports_group); - kfree(usbport_data); - - led_cdev->activated = false; } static struct led_trigger usbport_led_trigger = { .name = "usbport", .activate = usbport_trig_activate, .deactivate = usbport_trig_deactivate, + .groups = ports_groups, }; static int __init usbport_trig_init(void) diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index 1a15392326fc..228672f2c4a1 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -269,10 +269,11 @@ static void sg_clean(struct usb_sg_request *io) static void sg_complete(struct urb *urb) { + unsigned long flags; struct usb_sg_request *io = urb->context; int status = urb->status; - spin_lock(&io->lock); + spin_lock_irqsave(&io->lock, flags); /* In 2.5 we require hcds' endpoint queues not to progress after fault * reports, until the completion callback (this!) returns. That lets @@ -306,7 +307,7 @@ static void sg_complete(struct urb *urb) * unlink pending urbs so they won't rx/tx bad data. * careful: unlink can sometimes be synchronous... */ - spin_unlock(&io->lock); + spin_unlock_irqrestore(&io->lock, flags); for (i = 0, found = 0; i < io->entries; i++) { if (!io->urbs[i]) continue; @@ -323,7 +324,7 @@ static void sg_complete(struct urb *urb) } else if (urb == io->urbs[i]) found = 1; } - spin_lock(&io->lock); + spin_lock_irqsave(&io->lock, flags); } /* on the last completion, signal usb_sg_wait() */ @@ -332,7 +333,7 @@ static void sg_complete(struct urb *urb) if (!io->count) complete(&io->complete); - spin_unlock(&io->lock); + spin_unlock_irqrestore(&io->lock, flags); } diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index c55def2f1320..097057d2eacf 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -378,6 +378,10 @@ static const struct usb_device_id usb_quirk_list[] = { /* Corsair K70 RGB */ { USB_DEVICE(0x1b1c, 0x1b13), .driver_info = USB_QUIRK_DELAY_INIT }, + /* Corsair Strafe */ + { USB_DEVICE(0x1b1c, 0x1b15), .driver_info = USB_QUIRK_DELAY_INIT | + USB_QUIRK_DELAY_CTRL_MSG }, + /* Corsair Strafe RGB */ { USB_DEVICE(0x1b1c, 0x1b20), .driver_info = USB_QUIRK_DELAY_INIT | USB_QUIRK_DELAY_CTRL_MSG }, diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c index 1c36a6a9dd63..55d5ae2a7ec7 100644 --- a/drivers/usb/dwc2/core.c +++ b/drivers/usb/dwc2/core.c @@ -73,17 +73,17 @@ int dwc2_backup_global_registers(struct dwc2_hsotg *hsotg) /* Backup global regs */ gr = &hsotg->gr_backup; - gr->gotgctl = dwc2_readl(hsotg->regs + GOTGCTL); - gr->gintmsk = dwc2_readl(hsotg->regs + GINTMSK); - gr->gahbcfg = dwc2_readl(hsotg->regs + GAHBCFG); - gr->gusbcfg = dwc2_readl(hsotg->regs + GUSBCFG); - gr->grxfsiz = dwc2_readl(hsotg->regs + GRXFSIZ); - gr->gnptxfsiz = dwc2_readl(hsotg->regs + GNPTXFSIZ); - gr->gdfifocfg = dwc2_readl(hsotg->regs + GDFIFOCFG); - gr->pcgcctl1 = dwc2_readl(hsotg->regs + PCGCCTL1); - gr->glpmcfg = dwc2_readl(hsotg->regs + GLPMCFG); - gr->gi2cctl = dwc2_readl(hsotg->regs + GI2CCTL); - gr->pcgcctl = dwc2_readl(hsotg->regs + PCGCTL); + gr->gotgctl = dwc2_readl(hsotg, GOTGCTL); + gr->gintmsk = dwc2_readl(hsotg, GINTMSK); + gr->gahbcfg = dwc2_readl(hsotg, GAHBCFG); + gr->gusbcfg = dwc2_readl(hsotg, GUSBCFG); + gr->grxfsiz = dwc2_readl(hsotg, GRXFSIZ); + gr->gnptxfsiz = dwc2_readl(hsotg, GNPTXFSIZ); + gr->gdfifocfg = dwc2_readl(hsotg, GDFIFOCFG); + gr->pcgcctl1 = dwc2_readl(hsotg, PCGCCTL1); + gr->glpmcfg = dwc2_readl(hsotg, GLPMCFG); + gr->gi2cctl = dwc2_readl(hsotg, GI2CCTL); + gr->pcgcctl = dwc2_readl(hsotg, PCGCTL); gr->valid = true; return 0; @@ -111,18 +111,18 @@ int dwc2_restore_global_registers(struct dwc2_hsotg *hsotg) } gr->valid = false; - dwc2_writel(0xffffffff, hsotg->regs + GINTSTS); - dwc2_writel(gr->gotgctl, hsotg->regs + GOTGCTL); - dwc2_writel(gr->gintmsk, hsotg->regs + GINTMSK); - dwc2_writel(gr->gusbcfg, hsotg->regs + GUSBCFG); - dwc2_writel(gr->gahbcfg, hsotg->regs + GAHBCFG); - dwc2_writel(gr->grxfsiz, hsotg->regs + GRXFSIZ); - dwc2_writel(gr->gnptxfsiz, hsotg->regs + GNPTXFSIZ); - dwc2_writel(gr->gdfifocfg, hsotg->regs + GDFIFOCFG); - dwc2_writel(gr->pcgcctl1, hsotg->regs + PCGCCTL1); - dwc2_writel(gr->glpmcfg, hsotg->regs + GLPMCFG); - dwc2_writel(gr->pcgcctl, hsotg->regs + PCGCTL); - dwc2_writel(gr->gi2cctl, hsotg->regs + GI2CCTL); + dwc2_writel(hsotg, 0xffffffff, GINTSTS); + dwc2_writel(hsotg, gr->gotgctl, GOTGCTL); + dwc2_writel(hsotg, gr->gintmsk, GINTMSK); + dwc2_writel(hsotg, gr->gusbcfg, GUSBCFG); + dwc2_writel(hsotg, gr->gahbcfg, GAHBCFG); + dwc2_writel(hsotg, gr->grxfsiz, GRXFSIZ); + dwc2_writel(hsotg, gr->gnptxfsiz, GNPTXFSIZ); + dwc2_writel(hsotg, gr->gdfifocfg, GDFIFOCFG); + dwc2_writel(hsotg, gr->pcgcctl1, PCGCCTL1); + dwc2_writel(hsotg, gr->glpmcfg, GLPMCFG); + dwc2_writel(hsotg, gr->pcgcctl, PCGCTL); + dwc2_writel(hsotg, gr->gi2cctl, GI2CCTL); return 0; } @@ -141,17 +141,17 @@ int dwc2_exit_partial_power_down(struct dwc2_hsotg *hsotg, bool restore) if (hsotg->params.power_down != DWC2_POWER_DOWN_PARAM_PARTIAL) return -ENOTSUPP; - pcgcctl = dwc2_readl(hsotg->regs + PCGCTL); + pcgcctl = dwc2_readl(hsotg, PCGCTL); pcgcctl &= ~PCGCTL_STOPPCLK; - dwc2_writel(pcgcctl, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, pcgcctl, PCGCTL); - pcgcctl = dwc2_readl(hsotg->regs + PCGCTL); + pcgcctl = dwc2_readl(hsotg, PCGCTL); pcgcctl &= ~PCGCTL_PWRCLMP; - dwc2_writel(pcgcctl, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, pcgcctl, PCGCTL); - pcgcctl = dwc2_readl(hsotg->regs + PCGCTL); + pcgcctl = dwc2_readl(hsotg, PCGCTL); pcgcctl &= ~PCGCTL_RSTPDWNMODULE; - dwc2_writel(pcgcctl, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, pcgcctl, PCGCTL); udelay(100); if (restore) { @@ -222,21 +222,21 @@ int dwc2_enter_partial_power_down(struct dwc2_hsotg *hsotg) * Clear any pending interrupts since dwc2 will not be able to * clear them after entering partial_power_down. */ - dwc2_writel(0xffffffff, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, 0xffffffff, GINTSTS); /* Put the controller in low power state */ - pcgcctl = dwc2_readl(hsotg->regs + PCGCTL); + pcgcctl = dwc2_readl(hsotg, PCGCTL); pcgcctl |= PCGCTL_PWRCLMP; - dwc2_writel(pcgcctl, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, pcgcctl, PCGCTL); ndelay(20); pcgcctl |= PCGCTL_RSTPDWNMODULE; - dwc2_writel(pcgcctl, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, pcgcctl, PCGCTL); ndelay(20); pcgcctl |= PCGCTL_STOPPCLK; - dwc2_writel(pcgcctl, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, pcgcctl, PCGCTL); return ret; } @@ -272,39 +272,39 @@ static void dwc2_restore_essential_regs(struct dwc2_hsotg *hsotg, int rmode, if (!(pcgcctl & PCGCTL_P2HD_DEV_ENUM_SPD_MASK)) pcgcctl |= BIT(17); } - dwc2_writel(pcgcctl, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, pcgcctl, PCGCTL); /* Umnask global Interrupt in GAHBCFG and restore it */ - dwc2_writel(gr->gahbcfg | GAHBCFG_GLBL_INTR_EN, hsotg->regs + GAHBCFG); + dwc2_writel(hsotg, gr->gahbcfg | GAHBCFG_GLBL_INTR_EN, GAHBCFG); /* Clear all pending interupts */ - dwc2_writel(0xffffffff, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, 0xffffffff, GINTSTS); /* Unmask restore done interrupt */ - dwc2_writel(GINTSTS_RESTOREDONE, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, GINTSTS_RESTOREDONE, GINTMSK); /* Restore GUSBCFG and HCFG/DCFG */ - dwc2_writel(gr->gusbcfg, hsotg->regs + GUSBCFG); + dwc2_writel(hsotg, gr->gusbcfg, GUSBCFG); if (is_host) { - dwc2_writel(hr->hcfg, hsotg->regs + HCFG); + dwc2_writel(hsotg, hr->hcfg, HCFG); if (rmode) pcgcctl |= PCGCTL_RESTOREMODE; - dwc2_writel(pcgcctl, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, pcgcctl, PCGCTL); udelay(10); pcgcctl |= PCGCTL_ESS_REG_RESTORED; - dwc2_writel(pcgcctl, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, pcgcctl, PCGCTL); udelay(10); } else { - dwc2_writel(dr->dcfg, hsotg->regs + DCFG); + dwc2_writel(hsotg, dr->dcfg, DCFG); if (!rmode) pcgcctl |= PCGCTL_RESTOREMODE | PCGCTL_RSTPDWNMODULE; - dwc2_writel(pcgcctl, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, pcgcctl, PCGCTL); udelay(10); pcgcctl |= PCGCTL_ESS_REG_RESTORED; - dwc2_writel(pcgcctl, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, pcgcctl, PCGCTL); udelay(10); } } @@ -322,42 +322,42 @@ void dwc2_hib_restore_common(struct dwc2_hsotg *hsotg, int rem_wakeup, u32 gpwrdn; /* Switch-on voltage to the core */ - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn &= ~GPWRDN_PWRDNSWTCH; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(10); /* Reset core */ - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn &= ~GPWRDN_PWRDNRSTN; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(10); /* Enable restore from PMU */ - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn |= GPWRDN_RESTORE; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(10); /* Disable Power Down Clamp */ - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn &= ~GPWRDN_PWRDNCLMP; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(50); if (!is_host && rem_wakeup) udelay(70); /* Deassert reset core */ - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn |= GPWRDN_PWRDNRSTN; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(10); /* Disable PMU interrupt */ - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn &= ~GPWRDN_PMUINTSEL; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(10); /* Set Restore Essential Regs bit in PCGCCTL register */ @@ -431,7 +431,7 @@ static bool dwc2_iddig_filter_enabled(struct dwc2_hsotg *hsotg) return false; /* Check if core configuration includes the IDDIG filter. */ - ghwcfg4 = dwc2_readl(hsotg->regs + GHWCFG4); + ghwcfg4 = dwc2_readl(hsotg, GHWCFG4); if (!(ghwcfg4 & GHWCFG4_IDDIG_FILT_EN)) return false; @@ -439,9 +439,9 @@ static bool dwc2_iddig_filter_enabled(struct dwc2_hsotg *hsotg) * Check if the IDDIG debounce filter is bypassed. Available * in core version >= 3.10a. */ - gsnpsid = dwc2_readl(hsotg->regs + GSNPSID); + gsnpsid = dwc2_readl(hsotg, GSNPSID); if (gsnpsid >= DWC2_CORE_REV_3_10a) { - u32 gotgctl = dwc2_readl(hsotg->regs + GOTGCTL); + u32 gotgctl = dwc2_readl(hsotg, GOTGCTL); if (gotgctl & GOTGCTL_DBNCE_FLTR_BYPASS) return false; @@ -510,8 +510,8 @@ int dwc2_core_reset(struct dwc2_hsotg *hsotg, bool skip_wait) * reset and account for this delay after the reset. */ if (dwc2_iddig_filter_enabled(hsotg)) { - u32 gotgctl = dwc2_readl(hsotg->regs + GOTGCTL); - u32 gusbcfg = dwc2_readl(hsotg->regs + GUSBCFG); + u32 gotgctl = dwc2_readl(hsotg, GOTGCTL); + u32 gusbcfg = dwc2_readl(hsotg, GUSBCFG); if (!(gotgctl & GOTGCTL_CONID_B) || (gusbcfg & GUSBCFG_FORCEHOSTMODE)) { @@ -520,9 +520,9 @@ int dwc2_core_reset(struct dwc2_hsotg *hsotg, bool skip_wait) } /* Core Soft Reset */ - greset = dwc2_readl(hsotg->regs + GRSTCTL); + greset = dwc2_readl(hsotg, GRSTCTL); greset |= GRSTCTL_CSFTRST; - dwc2_writel(greset, hsotg->regs + GRSTCTL); + dwc2_writel(hsotg, greset, GRSTCTL); if (dwc2_hsotg_wait_bit_clear(hsotg, GRSTCTL, GRSTCTL_CSFTRST, 50)) { dev_warn(hsotg->dev, "%s: HANG! Soft Reset timeout GRSTCTL GRSTCTL_CSFTRST\n", @@ -594,14 +594,14 @@ void dwc2_force_mode(struct dwc2_hsotg *hsotg, bool host) if (WARN_ON(!host && hsotg->dr_mode == USB_DR_MODE_HOST)) return; - gusbcfg = dwc2_readl(hsotg->regs + GUSBCFG); + gusbcfg = dwc2_readl(hsotg, GUSBCFG); set = host ? GUSBCFG_FORCEHOSTMODE : GUSBCFG_FORCEDEVMODE; clear = host ? GUSBCFG_FORCEDEVMODE : GUSBCFG_FORCEHOSTMODE; gusbcfg &= ~clear; gusbcfg |= set; - dwc2_writel(gusbcfg, hsotg->regs + GUSBCFG); + dwc2_writel(hsotg, gusbcfg, GUSBCFG); dwc2_wait_for_mode(hsotg, host); return; @@ -627,10 +627,10 @@ static void dwc2_clear_force_mode(struct dwc2_hsotg *hsotg) dev_dbg(hsotg->dev, "Clearing force mode bits\n"); - gusbcfg = dwc2_readl(hsotg->regs + GUSBCFG); + gusbcfg = dwc2_readl(hsotg, GUSBCFG); gusbcfg &= ~GUSBCFG_FORCEHOSTMODE; gusbcfg &= ~GUSBCFG_FORCEDEVMODE; - dwc2_writel(gusbcfg, hsotg->regs + GUSBCFG); + dwc2_writel(hsotg, gusbcfg, GUSBCFG); if (dwc2_iddig_filter_enabled(hsotg)) msleep(100); @@ -670,11 +670,11 @@ void dwc2_force_dr_mode(struct dwc2_hsotg *hsotg) void dwc2_enable_acg(struct dwc2_hsotg *hsotg) { if (hsotg->params.acg_enable) { - u32 pcgcctl1 = dwc2_readl(hsotg->regs + PCGCCTL1); + u32 pcgcctl1 = dwc2_readl(hsotg, PCGCCTL1); dev_dbg(hsotg->dev, "Enabling Active Clock Gating\n"); pcgcctl1 |= PCGCCTL1_GATEEN; - dwc2_writel(pcgcctl1, hsotg->regs + PCGCCTL1); + dwc2_writel(hsotg, pcgcctl1, PCGCCTL1); } } @@ -695,56 +695,57 @@ void dwc2_dump_host_registers(struct dwc2_hsotg *hsotg) dev_dbg(hsotg->dev, "Host Global Registers\n"); addr = hsotg->regs + HCFG; dev_dbg(hsotg->dev, "HCFG @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, HCFG)); addr = hsotg->regs + HFIR; dev_dbg(hsotg->dev, "HFIR @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, HFIR)); addr = hsotg->regs + HFNUM; dev_dbg(hsotg->dev, "HFNUM @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, HFNUM)); addr = hsotg->regs + HPTXSTS; dev_dbg(hsotg->dev, "HPTXSTS @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, HPTXSTS)); addr = hsotg->regs + HAINT; dev_dbg(hsotg->dev, "HAINT @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, HAINT)); addr = hsotg->regs + HAINTMSK; dev_dbg(hsotg->dev, "HAINTMSK @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, HAINTMSK)); if (hsotg->params.dma_desc_enable) { addr = hsotg->regs + HFLBADDR; dev_dbg(hsotg->dev, "HFLBADDR @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, HFLBADDR)); } addr = hsotg->regs + HPRT0; dev_dbg(hsotg->dev, "HPRT0 @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, HPRT0)); for (i = 0; i < hsotg->params.host_channels; i++) { dev_dbg(hsotg->dev, "Host Channel %d Specific Registers\n", i); addr = hsotg->regs + HCCHAR(i); dev_dbg(hsotg->dev, "HCCHAR @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, HCCHAR(i))); addr = hsotg->regs + HCSPLT(i); dev_dbg(hsotg->dev, "HCSPLT @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, HCSPLT(i))); addr = hsotg->regs + HCINT(i); dev_dbg(hsotg->dev, "HCINT @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, HCINT(i))); addr = hsotg->regs + HCINTMSK(i); dev_dbg(hsotg->dev, "HCINTMSK @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, HCINTMSK(i))); addr = hsotg->regs + HCTSIZ(i); dev_dbg(hsotg->dev, "HCTSIZ @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, HCTSIZ(i))); addr = hsotg->regs + HCDMA(i); dev_dbg(hsotg->dev, "HCDMA @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, HCDMA(i))); if (hsotg->params.dma_desc_enable) { addr = hsotg->regs + HCDMAB(i); dev_dbg(hsotg->dev, "HCDMAB @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, + HCDMAB(i))); } } #endif @@ -766,80 +767,80 @@ void dwc2_dump_global_registers(struct dwc2_hsotg *hsotg) dev_dbg(hsotg->dev, "Core Global Registers\n"); addr = hsotg->regs + GOTGCTL; dev_dbg(hsotg->dev, "GOTGCTL @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GOTGCTL)); addr = hsotg->regs + GOTGINT; dev_dbg(hsotg->dev, "GOTGINT @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GOTGINT)); addr = hsotg->regs + GAHBCFG; dev_dbg(hsotg->dev, "GAHBCFG @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GAHBCFG)); addr = hsotg->regs + GUSBCFG; dev_dbg(hsotg->dev, "GUSBCFG @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GUSBCFG)); addr = hsotg->regs + GRSTCTL; dev_dbg(hsotg->dev, "GRSTCTL @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GRSTCTL)); addr = hsotg->regs + GINTSTS; dev_dbg(hsotg->dev, "GINTSTS @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GINTSTS)); addr = hsotg->regs + GINTMSK; dev_dbg(hsotg->dev, "GINTMSK @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GINTMSK)); addr = hsotg->regs + GRXSTSR; dev_dbg(hsotg->dev, "GRXSTSR @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GRXSTSR)); addr = hsotg->regs + GRXFSIZ; dev_dbg(hsotg->dev, "GRXFSIZ @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GRXFSIZ)); addr = hsotg->regs + GNPTXFSIZ; dev_dbg(hsotg->dev, "GNPTXFSIZ @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GNPTXFSIZ)); addr = hsotg->regs + GNPTXSTS; dev_dbg(hsotg->dev, "GNPTXSTS @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GNPTXSTS)); addr = hsotg->regs + GI2CCTL; dev_dbg(hsotg->dev, "GI2CCTL @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GI2CCTL)); addr = hsotg->regs + GPVNDCTL; dev_dbg(hsotg->dev, "GPVNDCTL @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GPVNDCTL)); addr = hsotg->regs + GGPIO; dev_dbg(hsotg->dev, "GGPIO @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GGPIO)); addr = hsotg->regs + GUID; dev_dbg(hsotg->dev, "GUID @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GUID)); addr = hsotg->regs + GSNPSID; dev_dbg(hsotg->dev, "GSNPSID @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GSNPSID)); addr = hsotg->regs + GHWCFG1; dev_dbg(hsotg->dev, "GHWCFG1 @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GHWCFG1)); addr = hsotg->regs + GHWCFG2; dev_dbg(hsotg->dev, "GHWCFG2 @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GHWCFG2)); addr = hsotg->regs + GHWCFG3; dev_dbg(hsotg->dev, "GHWCFG3 @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GHWCFG3)); addr = hsotg->regs + GHWCFG4; dev_dbg(hsotg->dev, "GHWCFG4 @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GHWCFG4)); addr = hsotg->regs + GLPMCFG; dev_dbg(hsotg->dev, "GLPMCFG @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GLPMCFG)); addr = hsotg->regs + GPWRDN; dev_dbg(hsotg->dev, "GPWRDN @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GPWRDN)); addr = hsotg->regs + GDFIFOCFG; dev_dbg(hsotg->dev, "GDFIFOCFG @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, GDFIFOCFG)); addr = hsotg->regs + HPTXFSIZ; dev_dbg(hsotg->dev, "HPTXFSIZ @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, HPTXFSIZ)); addr = hsotg->regs + PCGCTL; dev_dbg(hsotg->dev, "PCGCTL @0x%08lX : 0x%08X\n", - (unsigned long)addr, dwc2_readl(addr)); + (unsigned long)addr, dwc2_readl(hsotg, PCGCTL)); #endif } @@ -862,7 +863,7 @@ void dwc2_flush_tx_fifo(struct dwc2_hsotg *hsotg, const int num) greset = GRSTCTL_TXFFLSH; greset |= num << GRSTCTL_TXFNUM_SHIFT & GRSTCTL_TXFNUM_MASK; - dwc2_writel(greset, hsotg->regs + GRSTCTL); + dwc2_writel(hsotg, greset, GRSTCTL); if (dwc2_hsotg_wait_bit_clear(hsotg, GRSTCTL, GRSTCTL_TXFFLSH, 10000)) dev_warn(hsotg->dev, "%s: HANG! timeout GRSTCTL GRSTCTL_TXFFLSH\n", @@ -889,7 +890,7 @@ void dwc2_flush_rx_fifo(struct dwc2_hsotg *hsotg) __func__); greset = GRSTCTL_RXFFLSH; - dwc2_writel(greset, hsotg->regs + GRSTCTL); + dwc2_writel(hsotg, greset, GRSTCTL); /* Wait for RxFIFO flush done */ if (dwc2_hsotg_wait_bit_clear(hsotg, GRSTCTL, GRSTCTL_RXFFLSH, 10000)) @@ -902,7 +903,7 @@ void dwc2_flush_rx_fifo(struct dwc2_hsotg *hsotg) bool dwc2_is_controller_alive(struct dwc2_hsotg *hsotg) { - if (dwc2_readl(hsotg->regs + GSNPSID) == 0xffffffff) + if (dwc2_readl(hsotg, GSNPSID) == 0xffffffff) return false; else return true; @@ -916,10 +917,10 @@ bool dwc2_is_controller_alive(struct dwc2_hsotg *hsotg) */ void dwc2_enable_global_interrupts(struct dwc2_hsotg *hsotg) { - u32 ahbcfg = dwc2_readl(hsotg->regs + GAHBCFG); + u32 ahbcfg = dwc2_readl(hsotg, GAHBCFG); ahbcfg |= GAHBCFG_GLBL_INTR_EN; - dwc2_writel(ahbcfg, hsotg->regs + GAHBCFG); + dwc2_writel(hsotg, ahbcfg, GAHBCFG); } /** @@ -930,16 +931,16 @@ void dwc2_enable_global_interrupts(struct dwc2_hsotg *hsotg) */ void dwc2_disable_global_interrupts(struct dwc2_hsotg *hsotg) { - u32 ahbcfg = dwc2_readl(hsotg->regs + GAHBCFG); + u32 ahbcfg = dwc2_readl(hsotg, GAHBCFG); ahbcfg &= ~GAHBCFG_GLBL_INTR_EN; - dwc2_writel(ahbcfg, hsotg->regs + GAHBCFG); + dwc2_writel(hsotg, ahbcfg, GAHBCFG); } /* Returns the controller's GHWCFG2.OTG_MODE. */ unsigned int dwc2_op_mode(struct dwc2_hsotg *hsotg) { - u32 ghwcfg2 = dwc2_readl(hsotg->regs + GHWCFG2); + u32 ghwcfg2 = dwc2_readl(hsotg, GHWCFG2); return (ghwcfg2 & GHWCFG2_OP_MODE_MASK) >> GHWCFG2_OP_MODE_SHIFT; @@ -988,7 +989,7 @@ int dwc2_hsotg_wait_bit_set(struct dwc2_hsotg *hsotg, u32 offset, u32 mask, u32 i; for (i = 0; i < timeout; i++) { - if (dwc2_readl(hsotg->regs + offset) & mask) + if (dwc2_readl(hsotg, offset) & mask) return 0; udelay(1); } @@ -1011,7 +1012,7 @@ int dwc2_hsotg_wait_bit_clear(struct dwc2_hsotg *hsotg, u32 offset, u32 mask, u32 i; for (i = 0; i < timeout; i++) { - if (!(dwc2_readl(hsotg->regs + offset) & mask)) + if (!(dwc2_readl(hsotg, offset) & mask)) return 0; udelay(1); } diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h index 4a56ac772a3c..cc9c93affa14 100644 --- a/drivers/usb/dwc2/core.h +++ b/drivers/usb/dwc2/core.h @@ -65,60 +65,6 @@ DWC2_TRACE_SCHEDULER_VB(pr_fmt("%s: SCH: " fmt), \ dev_name(hsotg->dev), ##__VA_ARGS__) -#ifdef CONFIG_MIPS -/* - * There are some MIPS machines that can run in either big-endian - * or little-endian mode and that use the dwc2 register without - * a byteswap in both ways. - * Unlike other architectures, MIPS apparently does not require a - * barrier before the __raw_writel() to synchronize with DMA but does - * require the barrier after the __raw_writel() to serialize a set of - * writes. This set of operations was added specifically for MIPS and - * should only be used there. - */ -static inline u32 dwc2_readl(const void __iomem *addr) -{ - u32 value = __raw_readl(addr); - - /* In order to preserve endianness __raw_* operation is used. Therefore - * a barrier is needed to ensure IO access is not re-ordered across - * reads or writes - */ - mb(); - return value; -} - -static inline void dwc2_writel(u32 value, void __iomem *addr) -{ - __raw_writel(value, addr); - - /* - * In order to preserve endianness __raw_* operation is used. Therefore - * a barrier is needed to ensure IO access is not re-ordered across - * reads or writes - */ - mb(); -#ifdef DWC2_LOG_WRITES - pr_info("INFO:: wrote %08x to %p\n", value, addr); -#endif -} -#else -/* Normal architectures just use readl/write */ -static inline u32 dwc2_readl(const void __iomem *addr) -{ - return readl(addr); -} - -static inline void dwc2_writel(u32 value, void __iomem *addr) -{ - writel(value, addr); - -#ifdef DWC2_LOG_WRITES - pr_info("info:: wrote %08x to %p\n", value, addr); -#endif -} -#endif - /* Maximum number of Endpoints/HostChannels */ #define MAX_EPS_CHANNELS 16 @@ -911,6 +857,7 @@ struct dwc2_hregs_backup { * @gr_backup: Backup of global registers during suspend * @dr_backup: Backup of device registers during suspend * @hr_backup: Backup of host registers during suspend + * @needs_byte_swap: Specifies whether the opposite endianness. * * These are for host mode: * @@ -1004,6 +951,7 @@ struct dwc2_hregs_backup { * @frame_list_sz: Frame list size * @desc_gen_cache: Kmem cache for generic descriptors * @desc_hsisoc_cache: Kmem cache for hs isochronous descriptors + * @unaligned_cache: Kmem cache for DMA mode to handle non-aligned buf * * These are for peripheral mode: * @@ -1099,6 +1047,7 @@ struct dwc2_hsotg { struct dentry *debug_root; struct debugfs_regset32 *regset; + bool needs_byte_swap; /* DWC OTG HW Release versions */ #define DWC2_CORE_REV_2_71a 0x4f54271a @@ -1177,6 +1126,8 @@ struct dwc2_hsotg { u32 frame_list_sz; struct kmem_cache *desc_gen_cache; struct kmem_cache *desc_hsisoc_cache; + struct kmem_cache *unaligned_cache; +#define DWC2_KMEM_UNALIGNED_BUF_SIZE 1024 #endif /* CONFIG_USB_DWC2_HOST || CONFIG_USB_DWC2_DUAL_ROLE */ @@ -1212,6 +1163,55 @@ struct dwc2_hsotg { #endif /* CONFIG_USB_DWC2_PERIPHERAL || CONFIG_USB_DWC2_DUAL_ROLE */ }; +/* Normal architectures just use readl/write */ +static inline u32 dwc2_readl(struct dwc2_hsotg *hsotg, u32 offset) +{ + u32 val; + + val = readl(hsotg->regs + offset); + if (hsotg->needs_byte_swap) + return swab32(val); + else + return val; +} + +static inline void dwc2_writel(struct dwc2_hsotg *hsotg, u32 value, u32 offset) +{ + if (hsotg->needs_byte_swap) + writel(swab32(value), hsotg->regs + offset); + else + writel(value, hsotg->regs + offset); + +#ifdef DWC2_LOG_WRITES + pr_info("info:: wrote %08x to %p\n", value, hsotg->regs + offset); +#endif +} + +static inline void dwc2_readl_rep(struct dwc2_hsotg *hsotg, u32 offset, + void *buffer, unsigned int count) +{ + if (count) { + u32 *buf = buffer; + + do { + u32 x = dwc2_readl(hsotg, offset); + *buf++ = x; + } while (--count); + } +} + +static inline void dwc2_writel_rep(struct dwc2_hsotg *hsotg, u32 offset, + const void *buffer, unsigned int count) +{ + if (count) { + const u32 *buf = buffer; + + do { + dwc2_writel(hsotg, *buf++, offset); + } while (--count); + } +} + /* Reasons for halting a host channel */ enum dwc2_halt_status { DWC2_HC_XFER_NO_HALT_STATUS, @@ -1317,12 +1317,12 @@ bool dwc2_hw_is_device(struct dwc2_hsotg *hsotg); */ static inline int dwc2_is_host_mode(struct dwc2_hsotg *hsotg) { - return (dwc2_readl(hsotg->regs + GINTSTS) & GINTSTS_CURMODE_HOST) != 0; + return (dwc2_readl(hsotg, GINTSTS) & GINTSTS_CURMODE_HOST) != 0; } static inline int dwc2_is_device_mode(struct dwc2_hsotg *hsotg) { - return (dwc2_readl(hsotg->regs + GINTSTS) & GINTSTS_CURMODE_HOST) == 0; + return (dwc2_readl(hsotg, GINTSTS) & GINTSTS_CURMODE_HOST) == 0; } /* diff --git a/drivers/usb/dwc2/core_intr.c b/drivers/usb/dwc2/core_intr.c index cc90b58b6b3c..19ae2595f1c3 100644 --- a/drivers/usb/dwc2/core_intr.c +++ b/drivers/usb/dwc2/core_intr.c @@ -81,11 +81,11 @@ static const char *dwc2_op_state_str(struct dwc2_hsotg *hsotg) */ static void dwc2_handle_usb_port_intr(struct dwc2_hsotg *hsotg) { - u32 hprt0 = dwc2_readl(hsotg->regs + HPRT0); + u32 hprt0 = dwc2_readl(hsotg, HPRT0); if (hprt0 & HPRT0_ENACHG) { hprt0 &= ~HPRT0_ENA; - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); } } @@ -97,7 +97,7 @@ static void dwc2_handle_usb_port_intr(struct dwc2_hsotg *hsotg) static void dwc2_handle_mode_mismatch_intr(struct dwc2_hsotg *hsotg) { /* Clear interrupt */ - dwc2_writel(GINTSTS_MODEMIS, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, GINTSTS_MODEMIS, GINTSTS); dev_warn(hsotg->dev, "Mode Mismatch Interrupt: currently in %s mode\n", dwc2_is_host_mode(hsotg) ? "Host" : "Device"); @@ -115,8 +115,8 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg) u32 gotgctl; u32 gintmsk; - gotgint = dwc2_readl(hsotg->regs + GOTGINT); - gotgctl = dwc2_readl(hsotg->regs + GOTGCTL); + gotgint = dwc2_readl(hsotg, GOTGINT); + gotgctl = dwc2_readl(hsotg, GOTGCTL); dev_dbg(hsotg->dev, "++OTG Interrupt gotgint=%0x [%s]\n", gotgint, dwc2_op_state_str(hsotg)); @@ -124,7 +124,7 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg) dev_dbg(hsotg->dev, " ++OTG Interrupt: Session End Detected++ (%s)\n", dwc2_op_state_str(hsotg)); - gotgctl = dwc2_readl(hsotg->regs + GOTGCTL); + gotgctl = dwc2_readl(hsotg, GOTGCTL); if (dwc2_is_device_mode(hsotg)) dwc2_hsotg_disconnect(hsotg); @@ -150,24 +150,24 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg) hsotg->lx_state = DWC2_L0; } - gotgctl = dwc2_readl(hsotg->regs + GOTGCTL); + gotgctl = dwc2_readl(hsotg, GOTGCTL); gotgctl &= ~GOTGCTL_DEVHNPEN; - dwc2_writel(gotgctl, hsotg->regs + GOTGCTL); + dwc2_writel(hsotg, gotgctl, GOTGCTL); } if (gotgint & GOTGINT_SES_REQ_SUC_STS_CHNG) { dev_dbg(hsotg->dev, " ++OTG Interrupt: Session Request Success Status Change++\n"); - gotgctl = dwc2_readl(hsotg->regs + GOTGCTL); + gotgctl = dwc2_readl(hsotg, GOTGCTL); if (gotgctl & GOTGCTL_SESREQSCS) { if (hsotg->params.phy_type == DWC2_PHY_TYPE_PARAM_FS && hsotg->params.i2c_enable) { hsotg->srp_success = 1; } else { /* Clear Session Request */ - gotgctl = dwc2_readl(hsotg->regs + GOTGCTL); + gotgctl = dwc2_readl(hsotg, GOTGCTL); gotgctl &= ~GOTGCTL_SESREQ; - dwc2_writel(gotgctl, hsotg->regs + GOTGCTL); + dwc2_writel(hsotg, gotgctl, GOTGCTL); } } } @@ -177,7 +177,7 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg) * Print statements during the HNP interrupt handling * can cause it to fail */ - gotgctl = dwc2_readl(hsotg->regs + GOTGCTL); + gotgctl = dwc2_readl(hsotg, GOTGCTL); /* * WA for 3.00a- HW is not setting cur_mode, even sometimes * this does not help @@ -197,9 +197,9 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg) * interrupt does not get handled and Linux * complains loudly. */ - gintmsk = dwc2_readl(hsotg->regs + GINTMSK); + gintmsk = dwc2_readl(hsotg, GINTMSK); gintmsk &= ~GINTSTS_SOF; - dwc2_writel(gintmsk, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, gintmsk, GINTMSK); /* * Call callback function with spin lock @@ -213,9 +213,9 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg) hsotg->op_state = OTG_STATE_B_HOST; } } else { - gotgctl = dwc2_readl(hsotg->regs + GOTGCTL); + gotgctl = dwc2_readl(hsotg, GOTGCTL); gotgctl &= ~(GOTGCTL_HNPREQ | GOTGCTL_DEVHNPEN); - dwc2_writel(gotgctl, hsotg->regs + GOTGCTL); + dwc2_writel(hsotg, gotgctl, GOTGCTL); dev_dbg(hsotg->dev, "HNP Failed\n"); dev_err(hsotg->dev, "Device Not Connected/Responding\n"); @@ -241,9 +241,9 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg) hsotg->op_state = OTG_STATE_A_PERIPHERAL; } else { /* Need to disable SOF interrupt immediately */ - gintmsk = dwc2_readl(hsotg->regs + GINTMSK); + gintmsk = dwc2_readl(hsotg, GINTMSK); gintmsk &= ~GINTSTS_SOF; - dwc2_writel(gintmsk, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, gintmsk, GINTMSK); spin_unlock(&hsotg->lock); dwc2_hcd_start(hsotg); spin_lock(&hsotg->lock); @@ -258,7 +258,7 @@ static void dwc2_handle_otg_intr(struct dwc2_hsotg *hsotg) dev_dbg(hsotg->dev, " ++OTG Interrupt: Debounce Done++\n"); /* Clear GOTGINT */ - dwc2_writel(gotgint, hsotg->regs + GOTGINT); + dwc2_writel(hsotg, gotgint, GOTGINT); } /** @@ -276,12 +276,12 @@ static void dwc2_handle_conn_id_status_change_intr(struct dwc2_hsotg *hsotg) u32 gintmsk; /* Clear interrupt */ - dwc2_writel(GINTSTS_CONIDSTSCHNG, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, GINTSTS_CONIDSTSCHNG, GINTSTS); /* Need to disable SOF interrupt immediately */ - gintmsk = dwc2_readl(hsotg->regs + GINTMSK); + gintmsk = dwc2_readl(hsotg, GINTMSK); gintmsk &= ~GINTSTS_SOF; - dwc2_writel(gintmsk, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, gintmsk, GINTMSK); dev_dbg(hsotg->dev, " ++Connector ID Status Change Interrupt++ (%s)\n", dwc2_is_host_mode(hsotg) ? "Host" : "Device"); @@ -314,7 +314,7 @@ static void dwc2_handle_session_req_intr(struct dwc2_hsotg *hsotg) int ret; /* Clear interrupt */ - dwc2_writel(GINTSTS_SESSREQINT, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, GINTSTS_SESSREQINT, GINTSTS); dev_dbg(hsotg->dev, "Session request interrupt - lx_state=%d\n", hsotg->lx_state); @@ -351,15 +351,15 @@ static void dwc2_wakeup_from_lpm_l1(struct dwc2_hsotg *hsotg) return; } - glpmcfg = dwc2_readl(hsotg->regs + GLPMCFG); + glpmcfg = dwc2_readl(hsotg, GLPMCFG); if (dwc2_is_device_mode(hsotg)) { dev_dbg(hsotg->dev, "Exit from L1 state\n"); glpmcfg &= ~GLPMCFG_ENBLSLPM; glpmcfg &= ~GLPMCFG_HIRD_THRES_EN; - dwc2_writel(glpmcfg, hsotg->regs + GLPMCFG); + dwc2_writel(hsotg, glpmcfg, GLPMCFG); do { - glpmcfg = dwc2_readl(hsotg->regs + GLPMCFG); + glpmcfg = dwc2_readl(hsotg, GLPMCFG); if (!(glpmcfg & (GLPMCFG_COREL1RES_MASK | GLPMCFG_L1RESUMEOK | GLPMCFG_SLPSTS))) @@ -398,7 +398,7 @@ static void dwc2_handle_wakeup_detected_intr(struct dwc2_hsotg *hsotg) int ret; /* Clear interrupt */ - dwc2_writel(GINTSTS_WKUPINT, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, GINTSTS_WKUPINT, GINTSTS); dev_dbg(hsotg->dev, "++Resume or Remote Wakeup Detected Interrupt++\n"); dev_dbg(hsotg->dev, "%s lxstate = %d\n", __func__, hsotg->lx_state); @@ -410,13 +410,13 @@ static void dwc2_handle_wakeup_detected_intr(struct dwc2_hsotg *hsotg) if (dwc2_is_device_mode(hsotg)) { dev_dbg(hsotg->dev, "DSTS=0x%0x\n", - dwc2_readl(hsotg->regs + DSTS)); + dwc2_readl(hsotg, DSTS)); if (hsotg->lx_state == DWC2_L2) { - u32 dctl = dwc2_readl(hsotg->regs + DCTL); + u32 dctl = dwc2_readl(hsotg, DCTL); /* Clear Remote Wakeup Signaling */ dctl &= ~DCTL_RMTWKUPSIG; - dwc2_writel(dctl, hsotg->regs + DCTL); + dwc2_writel(hsotg, dctl, DCTL); ret = dwc2_exit_partial_power_down(hsotg, true); if (ret && (ret != -ENOTSUPP)) dev_err(hsotg->dev, "exit power_down failed\n"); @@ -430,11 +430,11 @@ static void dwc2_handle_wakeup_detected_intr(struct dwc2_hsotg *hsotg) return; if (hsotg->lx_state != DWC2_L1) { - u32 pcgcctl = dwc2_readl(hsotg->regs + PCGCTL); + u32 pcgcctl = dwc2_readl(hsotg, PCGCTL); /* Restart the Phy Clock */ pcgcctl &= ~PCGCTL_STOPPCLK; - dwc2_writel(pcgcctl, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, pcgcctl, PCGCTL); mod_timer(&hsotg->wkp_timer, jiffies + msecs_to_jiffies(71)); } else { @@ -450,7 +450,7 @@ static void dwc2_handle_wakeup_detected_intr(struct dwc2_hsotg *hsotg) */ static void dwc2_handle_disconnect_intr(struct dwc2_hsotg *hsotg) { - dwc2_writel(GINTSTS_DISCONNINT, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, GINTSTS_DISCONNINT, GINTSTS); dev_dbg(hsotg->dev, "++Disconnect Detected Interrupt++ (%s) %s\n", dwc2_is_host_mode(hsotg) ? "Host" : "Device", @@ -474,7 +474,7 @@ static void dwc2_handle_usb_suspend_intr(struct dwc2_hsotg *hsotg) int ret; /* Clear interrupt */ - dwc2_writel(GINTSTS_USBSUSP, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, GINTSTS_USBSUSP, GINTSTS); dev_dbg(hsotg->dev, "USB SUSPEND\n"); @@ -483,7 +483,7 @@ static void dwc2_handle_usb_suspend_intr(struct dwc2_hsotg *hsotg) * Check the Device status register to determine if the Suspend * state is active */ - dsts = dwc2_readl(hsotg->regs + DSTS); + dsts = dwc2_readl(hsotg, DSTS); dev_dbg(hsotg->dev, "%s: DSTS=0x%0x\n", __func__, dsts); dev_dbg(hsotg->dev, "DSTS.Suspend Status=%d HWCFG4.Power Optimize=%d HWCFG4.Hibernation=%d\n", @@ -563,9 +563,9 @@ static void dwc2_handle_lpm_intr(struct dwc2_hsotg *hsotg) u32 enslpm; /* Clear interrupt */ - dwc2_writel(GINTSTS_LPMTRANRCVD, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, GINTSTS_LPMTRANRCVD, GINTSTS); - glpmcfg = dwc2_readl(hsotg->regs + GLPMCFG); + glpmcfg = dwc2_readl(hsotg, GLPMCFG); if (!(glpmcfg & GLPMCFG_LPMCAP)) { dev_err(hsotg->dev, "Unexpected LPM interrupt\n"); @@ -588,16 +588,16 @@ static void dwc2_handle_lpm_intr(struct dwc2_hsotg *hsotg) } else { dev_dbg(hsotg->dev, "Entering Sleep with L1 Gating\n"); - pcgcctl = dwc2_readl(hsotg->regs + PCGCTL); + pcgcctl = dwc2_readl(hsotg, PCGCTL); pcgcctl |= PCGCTL_ENBL_SLEEP_GATING; - dwc2_writel(pcgcctl, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, pcgcctl, PCGCTL); } /** * Examine prt_sleep_sts after TL1TokenTetry period max (10 us) */ udelay(10); - glpmcfg = dwc2_readl(hsotg->regs + GLPMCFG); + glpmcfg = dwc2_readl(hsotg, GLPMCFG); if (glpmcfg & GLPMCFG_SLPSTS) { /* Save the current state */ @@ -627,9 +627,9 @@ static u32 dwc2_read_common_intr(struct dwc2_hsotg *hsotg) u32 gahbcfg; u32 gintmsk_common = GINTMSK_COMMON; - gintsts = dwc2_readl(hsotg->regs + GINTSTS); - gintmsk = dwc2_readl(hsotg->regs + GINTMSK); - gahbcfg = dwc2_readl(hsotg->regs + GAHBCFG); + gintsts = dwc2_readl(hsotg, GINTSTS); + gintmsk = dwc2_readl(hsotg, GINTMSK); + gahbcfg = dwc2_readl(hsotg, GAHBCFG); /* If any common interrupts set */ if (gintsts & gintmsk_common) @@ -653,9 +653,9 @@ static void dwc2_handle_gpwrdn_intr(struct dwc2_hsotg *hsotg) u32 gpwrdn; int linestate; - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); /* clear all interrupt */ - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); linestate = (gpwrdn & GPWRDN_LINESTATE_MASK) >> GPWRDN_LINESTATE_SHIFT; dev_dbg(hsotg->dev, "%s: dwc2_handle_gpwrdwn_intr called gpwrdn= %08x\n", __func__, @@ -668,38 +668,38 @@ static void dwc2_handle_gpwrdn_intr(struct dwc2_hsotg *hsotg) dev_dbg(hsotg->dev, "%s: GPWRDN_DISCONN_DET\n", __func__); /* Switch-on voltage to the core */ - gpwrdn_tmp = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn_tmp = dwc2_readl(hsotg, GPWRDN); gpwrdn_tmp &= ~GPWRDN_PWRDNSWTCH; - dwc2_writel(gpwrdn_tmp, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN); udelay(10); /* Reset core */ - gpwrdn_tmp = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn_tmp = dwc2_readl(hsotg, GPWRDN); gpwrdn_tmp &= ~GPWRDN_PWRDNRSTN; - dwc2_writel(gpwrdn_tmp, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN); udelay(10); /* Disable Power Down Clamp */ - gpwrdn_tmp = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn_tmp = dwc2_readl(hsotg, GPWRDN); gpwrdn_tmp &= ~GPWRDN_PWRDNCLMP; - dwc2_writel(gpwrdn_tmp, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN); udelay(10); /* Deassert reset core */ - gpwrdn_tmp = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn_tmp = dwc2_readl(hsotg, GPWRDN); gpwrdn_tmp |= GPWRDN_PWRDNRSTN; - dwc2_writel(gpwrdn_tmp, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN); udelay(10); /* Disable PMU interrupt */ - gpwrdn_tmp = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn_tmp = dwc2_readl(hsotg, GPWRDN); gpwrdn_tmp &= ~GPWRDN_PMUINTSEL; - dwc2_writel(gpwrdn_tmp, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN); /* De-assert Wakeup Logic */ - gpwrdn_tmp = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn_tmp = dwc2_readl(hsotg, GPWRDN); gpwrdn_tmp &= ~GPWRDN_PMUACTV; - dwc2_writel(gpwrdn_tmp, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn_tmp, GPWRDN); hsotg->hibernated = 0; @@ -780,10 +780,10 @@ irqreturn_t dwc2_handle_common_intr(int irq, void *dev) /* Reading current frame number value in device or host modes. */ if (dwc2_is_device_mode(hsotg)) - hsotg->frame_number = (dwc2_readl(hsotg->regs + DSTS) + hsotg->frame_number = (dwc2_readl(hsotg, DSTS) & DSTS_SOFFN_MASK) >> DSTS_SOFFN_SHIFT; else - hsotg->frame_number = (dwc2_readl(hsotg->regs + HFNUM) + hsotg->frame_number = (dwc2_readl(hsotg, HFNUM) & HFNUM_FRNUM_MASK) >> HFNUM_FRNUM_SHIFT; gintsts = dwc2_read_common_intr(hsotg); diff --git a/drivers/usb/dwc2/debugfs.c b/drivers/usb/dwc2/debugfs.c index d0bdb7997557..22d015b0424f 100644 --- a/drivers/usb/dwc2/debugfs.c +++ b/drivers/usb/dwc2/debugfs.c @@ -69,7 +69,7 @@ static int testmode_show(struct seq_file *s, void *unused) int dctl; spin_lock_irqsave(&hsotg->lock, flags); - dctl = dwc2_readl(hsotg->regs + DCTL); + dctl = dwc2_readl(hsotg, DCTL); dctl &= DCTL_TSTCTL_MASK; dctl >>= DCTL_TSTCTL_SHIFT; spin_unlock_irqrestore(&hsotg->lock, flags); @@ -126,42 +126,41 @@ static const struct file_operations testmode_fops = { static int state_show(struct seq_file *seq, void *v) { struct dwc2_hsotg *hsotg = seq->private; - void __iomem *regs = hsotg->regs; int idx; seq_printf(seq, "DCFG=0x%08x, DCTL=0x%08x, DSTS=0x%08x\n", - dwc2_readl(regs + DCFG), - dwc2_readl(regs + DCTL), - dwc2_readl(regs + DSTS)); + dwc2_readl(hsotg, DCFG), + dwc2_readl(hsotg, DCTL), + dwc2_readl(hsotg, DSTS)); seq_printf(seq, "DIEPMSK=0x%08x, DOEPMASK=0x%08x\n", - dwc2_readl(regs + DIEPMSK), dwc2_readl(regs + DOEPMSK)); + dwc2_readl(hsotg, DIEPMSK), dwc2_readl(hsotg, DOEPMSK)); seq_printf(seq, "GINTMSK=0x%08x, GINTSTS=0x%08x\n", - dwc2_readl(regs + GINTMSK), - dwc2_readl(regs + GINTSTS)); + dwc2_readl(hsotg, GINTMSK), + dwc2_readl(hsotg, GINTSTS)); seq_printf(seq, "DAINTMSK=0x%08x, DAINT=0x%08x\n", - dwc2_readl(regs + DAINTMSK), - dwc2_readl(regs + DAINT)); + dwc2_readl(hsotg, DAINTMSK), + dwc2_readl(hsotg, DAINT)); seq_printf(seq, "GNPTXSTS=0x%08x, GRXSTSR=%08x\n", - dwc2_readl(regs + GNPTXSTS), - dwc2_readl(regs + GRXSTSR)); + dwc2_readl(hsotg, GNPTXSTS), + dwc2_readl(hsotg, GRXSTSR)); seq_puts(seq, "\nEndpoint status:\n"); for (idx = 0; idx < hsotg->num_of_eps; idx++) { u32 in, out; - in = dwc2_readl(regs + DIEPCTL(idx)); - out = dwc2_readl(regs + DOEPCTL(idx)); + in = dwc2_readl(hsotg, DIEPCTL(idx)); + out = dwc2_readl(hsotg, DOEPCTL(idx)); seq_printf(seq, "ep%d: DIEPCTL=0x%08x, DOEPCTL=0x%08x", idx, in, out); - in = dwc2_readl(regs + DIEPTSIZ(idx)); - out = dwc2_readl(regs + DOEPTSIZ(idx)); + in = dwc2_readl(hsotg, DIEPTSIZ(idx)); + out = dwc2_readl(hsotg, DOEPTSIZ(idx)); seq_printf(seq, ", DIEPTSIZ=0x%08x, DOEPTSIZ=0x%08x", in, out); @@ -184,14 +183,13 @@ DEFINE_SHOW_ATTRIBUTE(state); static int fifo_show(struct seq_file *seq, void *v) { struct dwc2_hsotg *hsotg = seq->private; - void __iomem *regs = hsotg->regs; u32 val; int idx; seq_puts(seq, "Non-periodic FIFOs:\n"); - seq_printf(seq, "RXFIFO: Size %d\n", dwc2_readl(regs + GRXFSIZ)); + seq_printf(seq, "RXFIFO: Size %d\n", dwc2_readl(hsotg, GRXFSIZ)); - val = dwc2_readl(regs + GNPTXFSIZ); + val = dwc2_readl(hsotg, GNPTXFSIZ); seq_printf(seq, "NPTXFIFO: Size %d, Start 0x%08x\n", val >> FIFOSIZE_DEPTH_SHIFT, val & FIFOSIZE_STARTADDR_MASK); @@ -199,7 +197,7 @@ static int fifo_show(struct seq_file *seq, void *v) seq_puts(seq, "\nPeriodic TXFIFOs:\n"); for (idx = 1; idx < hsotg->num_of_eps; idx++) { - val = dwc2_readl(regs + DPTXFSIZN(idx)); + val = dwc2_readl(hsotg, DPTXFSIZN(idx)); seq_printf(seq, "\tDPTXFIFO%2d: Size %d, Start 0x%08x\n", idx, val >> FIFOSIZE_DEPTH_SHIFT, @@ -228,7 +226,6 @@ static int ep_show(struct seq_file *seq, void *v) struct dwc2_hsotg_ep *ep = seq->private; struct dwc2_hsotg *hsotg = ep->parent; struct dwc2_hsotg_req *req; - void __iomem *regs = hsotg->regs; int index = ep->index; int show_limit = 15; unsigned long flags; @@ -239,20 +236,20 @@ static int ep_show(struct seq_file *seq, void *v) /* first show the register state */ seq_printf(seq, "\tDIEPCTL=0x%08x, DOEPCTL=0x%08x\n", - dwc2_readl(regs + DIEPCTL(index)), - dwc2_readl(regs + DOEPCTL(index))); + dwc2_readl(hsotg, DIEPCTL(index)), + dwc2_readl(hsotg, DOEPCTL(index))); seq_printf(seq, "\tDIEPDMA=0x%08x, DOEPDMA=0x%08x\n", - dwc2_readl(regs + DIEPDMA(index)), - dwc2_readl(regs + DOEPDMA(index))); + dwc2_readl(hsotg, DIEPDMA(index)), + dwc2_readl(hsotg, DOEPDMA(index))); seq_printf(seq, "\tDIEPINT=0x%08x, DOEPINT=0x%08x\n", - dwc2_readl(regs + DIEPINT(index)), - dwc2_readl(regs + DOEPINT(index))); + dwc2_readl(hsotg, DIEPINT(index)), + dwc2_readl(hsotg, DOEPINT(index))); seq_printf(seq, "\tDIEPTSIZ=0x%08x, DOEPTSIZ=0x%08x\n", - dwc2_readl(regs + DIEPTSIZ(index)), - dwc2_readl(regs + DOEPTSIZ(index))); + dwc2_readl(hsotg, DIEPTSIZ(index)), + dwc2_readl(hsotg, DOEPTSIZ(index))); seq_puts(seq, "\n"); seq_printf(seq, "mps %d\n", ep->ep.maxpacket); diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index f0d9ccf1d665..220c0f9b89b0 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -47,14 +47,14 @@ static inline struct dwc2_hsotg *to_hsotg(struct usb_gadget *gadget) return container_of(gadget, struct dwc2_hsotg, gadget); } -static inline void dwc2_set_bit(void __iomem *ptr, u32 val) +static inline void dwc2_set_bit(struct dwc2_hsotg *hsotg, u32 offset, u32 val) { - dwc2_writel(dwc2_readl(ptr) | val, ptr); + dwc2_writel(hsotg, dwc2_readl(hsotg, offset) | val, offset); } -static inline void dwc2_clear_bit(void __iomem *ptr, u32 val) +static inline void dwc2_clear_bit(struct dwc2_hsotg *hsotg, u32 offset, u32 val) { - dwc2_writel(dwc2_readl(ptr) & ~val, ptr); + dwc2_writel(hsotg, dwc2_readl(hsotg, offset) & ~val, offset); } static inline struct dwc2_hsotg_ep *index_to_ep(struct dwc2_hsotg *hsotg, @@ -129,14 +129,14 @@ static inline void dwc2_gadget_incr_frame_num(struct dwc2_hsotg_ep *hs_ep) */ static void dwc2_hsotg_en_gsint(struct dwc2_hsotg *hsotg, u32 ints) { - u32 gsintmsk = dwc2_readl(hsotg->regs + GINTMSK); + u32 gsintmsk = dwc2_readl(hsotg, GINTMSK); u32 new_gsintmsk; new_gsintmsk = gsintmsk | ints; if (new_gsintmsk != gsintmsk) { dev_dbg(hsotg->dev, "gsintmsk now 0x%08x\n", new_gsintmsk); - dwc2_writel(new_gsintmsk, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, new_gsintmsk, GINTMSK); } } @@ -147,13 +147,13 @@ static void dwc2_hsotg_en_gsint(struct dwc2_hsotg *hsotg, u32 ints) */ static void dwc2_hsotg_disable_gsint(struct dwc2_hsotg *hsotg, u32 ints) { - u32 gsintmsk = dwc2_readl(hsotg->regs + GINTMSK); + u32 gsintmsk = dwc2_readl(hsotg, GINTMSK); u32 new_gsintmsk; new_gsintmsk = gsintmsk & ~ints; if (new_gsintmsk != gsintmsk) - dwc2_writel(new_gsintmsk, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, new_gsintmsk, GINTMSK); } /** @@ -178,12 +178,12 @@ static void dwc2_hsotg_ctrl_epint(struct dwc2_hsotg *hsotg, bit <<= 16; local_irq_save(flags); - daint = dwc2_readl(hsotg->regs + DAINTMSK); + daint = dwc2_readl(hsotg, DAINTMSK); if (en) daint |= bit; else daint &= ~bit; - dwc2_writel(daint, hsotg->regs + DAINTMSK); + dwc2_writel(hsotg, daint, DAINTMSK); local_irq_restore(flags); } @@ -266,10 +266,11 @@ static void dwc2_hsotg_init_fifo(struct dwc2_hsotg *hsotg) hsotg->fifo_map = 0; /* set RX/NPTX FIFO sizes */ - dwc2_writel(hsotg->params.g_rx_fifo_size, hsotg->regs + GRXFSIZ); - dwc2_writel((hsotg->params.g_rx_fifo_size << FIFOSIZE_STARTADDR_SHIFT) | + dwc2_writel(hsotg, hsotg->params.g_rx_fifo_size, GRXFSIZ); + dwc2_writel(hsotg, (hsotg->params.g_rx_fifo_size << + FIFOSIZE_STARTADDR_SHIFT) | (hsotg->params.g_np_tx_fifo_size << FIFOSIZE_DEPTH_SHIFT), - hsotg->regs + GNPTXFSIZ); + GNPTXFSIZ); /* * arange all the rest of the TX FIFOs, as some versions of this @@ -295,25 +296,25 @@ static void dwc2_hsotg_init_fifo(struct dwc2_hsotg *hsotg) "insufficient fifo memory"); addr += txfsz[ep]; - dwc2_writel(val, hsotg->regs + DPTXFSIZN(ep)); - val = dwc2_readl(hsotg->regs + DPTXFSIZN(ep)); + dwc2_writel(hsotg, val, DPTXFSIZN(ep)); + val = dwc2_readl(hsotg, DPTXFSIZN(ep)); } - dwc2_writel(hsotg->hw_params.total_fifo_size | + dwc2_writel(hsotg, hsotg->hw_params.total_fifo_size | addr << GDFIFOCFG_EPINFOBASE_SHIFT, - hsotg->regs + GDFIFOCFG); + GDFIFOCFG); /* * according to p428 of the design guide, we need to ensure that * all fifos are flushed before continuing */ - dwc2_writel(GRSTCTL_TXFNUM(0x10) | GRSTCTL_TXFFLSH | - GRSTCTL_RXFFLSH, hsotg->regs + GRSTCTL); + dwc2_writel(hsotg, GRSTCTL_TXFNUM(0x10) | GRSTCTL_TXFFLSH | + GRSTCTL_RXFFLSH, GRSTCTL); /* wait until the fifos are both flushed */ timeout = 100; while (1) { - val = dwc2_readl(hsotg->regs + GRSTCTL); + val = dwc2_readl(hsotg, GRSTCTL); if ((val & (GRSTCTL_TXFFLSH | GRSTCTL_RXFFLSH)) == 0) break; @@ -451,7 +452,7 @@ static int dwc2_hsotg_write_fifo(struct dwc2_hsotg *hsotg, struct dwc2_hsotg_req *hs_req) { bool periodic = is_ep_periodic(hs_ep); - u32 gnptxsts = dwc2_readl(hsotg->regs + GNPTXSTS); + u32 gnptxsts = dwc2_readl(hsotg, GNPTXSTS); int buf_pos = hs_req->req.actual; int to_write = hs_ep->size_loaded; void *data; @@ -466,7 +467,7 @@ static int dwc2_hsotg_write_fifo(struct dwc2_hsotg *hsotg, return 0; if (periodic && !hsotg->dedicated_fifos) { - u32 epsize = dwc2_readl(hsotg->regs + DIEPTSIZ(hs_ep->index)); + u32 epsize = dwc2_readl(hsotg, DIEPTSIZ(hs_ep->index)); int size_left; int size_done; @@ -507,8 +508,8 @@ static int dwc2_hsotg_write_fifo(struct dwc2_hsotg *hsotg, return -ENOSPC; } } else if (hsotg->dedicated_fifos && hs_ep->index != 0) { - can_write = dwc2_readl(hsotg->regs + - DTXFSTS(hs_ep->fifo_index)); + can_write = dwc2_readl(hsotg, + DTXFSTS(hs_ep->fifo_index)); can_write &= 0xffff; can_write *= 4; @@ -598,7 +599,7 @@ static int dwc2_hsotg_write_fifo(struct dwc2_hsotg *hsotg, to_write = DIV_ROUND_UP(to_write, 4); data = hs_req->req.buf + buf_pos; - iowrite32_rep(hsotg->regs + EPFIFO(hs_ep->index), data, to_write); + dwc2_writel_rep(hsotg, EPFIFO(hs_ep->index), data, to_write); return (to_write >= can_write) ? -ENOSPC : 0; } @@ -652,7 +653,7 @@ static u32 dwc2_hsotg_read_frameno(struct dwc2_hsotg *hsotg) { u32 dsts; - dsts = dwc2_readl(hsotg->regs + DSTS); + dsts = dwc2_readl(hsotg, DSTS); dsts &= DSTS_SOFFN_MASK; dsts >>= DSTS_SOFFN_SHIFT; @@ -812,6 +813,7 @@ static int dwc2_gadget_fill_isoc_desc(struct dwc2_hsotg_ep *hs_ep, u32 index; u32 maxsize = 0; u32 mask = 0; + u8 pid = 0; maxsize = dwc2_gadget_get_desc_params(hs_ep, &mask); @@ -840,7 +842,11 @@ static int dwc2_gadget_fill_isoc_desc(struct dwc2_hsotg_ep *hs_ep, ((len << DEV_DMA_NBYTES_SHIFT) & mask)); if (hs_ep->dir_in) { - desc->status |= ((hs_ep->mc << DEV_DMA_ISOC_PID_SHIFT) & + if (len) + pid = DIV_ROUND_UP(len, hs_ep->ep.maxpacket); + else + pid = 1; + desc->status |= ((pid << DEV_DMA_ISOC_PID_SHIFT) & DEV_DMA_ISOC_PID_MASK) | ((len % hs_ep->ep.maxpacket) ? DEV_DMA_SHORT : 0) | @@ -884,6 +890,7 @@ static void dwc2_gadget_start_isoc_ddma(struct dwc2_hsotg_ep *hs_ep) struct dwc2_dma_desc *desc; if (list_empty(&hs_ep->queue)) { + hs_ep->target_frame = TARGET_FRAME_INITIAL; dev_dbg(hsotg->dev, "%s: No requests in queue\n", __func__); return; } @@ -909,11 +916,11 @@ static void dwc2_gadget_start_isoc_ddma(struct dwc2_hsotg_ep *hs_ep) dma_reg = hs_ep->dir_in ? DIEPDMA(index) : DOEPDMA(index); /* write descriptor chain address to control register */ - dwc2_writel(hs_ep->desc_list_dma, hsotg->regs + dma_reg); + dwc2_writel(hsotg, hs_ep->desc_list_dma, dma_reg); - ctrl = dwc2_readl(hsotg->regs + depctl); + ctrl = dwc2_readl(hsotg, depctl); ctrl |= DXEPCTL_EPENA | DXEPCTL_CNAK; - dwc2_writel(ctrl, hsotg->regs + depctl); + dwc2_writel(hsotg, ctrl, depctl); } /** @@ -961,11 +968,11 @@ static void dwc2_hsotg_start_req(struct dwc2_hsotg *hsotg, epsize_reg = dir_in ? DIEPTSIZ(index) : DOEPTSIZ(index); dev_dbg(hsotg->dev, "%s: DxEPCTL=0x%08x, ep %d, dir %s\n", - __func__, dwc2_readl(hsotg->regs + epctrl_reg), index, + __func__, dwc2_readl(hsotg, epctrl_reg), index, hs_ep->dir_in ? "in" : "out"); /* If endpoint is stalled, we will restart request later */ - ctrl = dwc2_readl(hsotg->regs + epctrl_reg); + ctrl = dwc2_readl(hsotg, epctrl_reg); if (index && ctrl & DXEPCTL_STALL) { dev_warn(hsotg->dev, "%s: ep%d is stalled\n", __func__, index); @@ -1058,13 +1065,13 @@ static void dwc2_hsotg_start_req(struct dwc2_hsotg *hsotg, length); /* write descriptor chain address to control register */ - dwc2_writel(hs_ep->desc_list_dma, hsotg->regs + dma_reg); + dwc2_writel(hsotg, hs_ep->desc_list_dma, dma_reg); dev_dbg(hsotg->dev, "%s: %08x pad => 0x%08x\n", __func__, (u32)hs_ep->desc_list_dma, dma_reg); } else { /* write size / packets */ - dwc2_writel(epsize, hsotg->regs + epsize_reg); + dwc2_writel(hsotg, epsize, epsize_reg); if (using_dma(hsotg) && !continuing && (length != 0)) { /* @@ -1072,7 +1079,7 @@ static void dwc2_hsotg_start_req(struct dwc2_hsotg *hsotg, * already synced by dwc2_hsotg_ep_queue(). */ - dwc2_writel(ureq->dma, hsotg->regs + dma_reg); + dwc2_writel(hsotg, ureq->dma, dma_reg); dev_dbg(hsotg->dev, "%s: %pad => 0x%08x\n", __func__, &ureq->dma, dma_reg); @@ -1098,7 +1105,7 @@ static void dwc2_hsotg_start_req(struct dwc2_hsotg *hsotg, ctrl |= DXEPCTL_CNAK; /* clear NAK set by core */ dev_dbg(hsotg->dev, "%s: DxEPCTL=0x%08x\n", __func__, ctrl); - dwc2_writel(ctrl, hsotg->regs + epctrl_reg); + dwc2_writel(hsotg, ctrl, epctrl_reg); /* * set these, it seems that DMA support increments past the end @@ -1121,13 +1128,13 @@ static void dwc2_hsotg_start_req(struct dwc2_hsotg *hsotg, */ /* check ep is enabled */ - if (!(dwc2_readl(hsotg->regs + epctrl_reg) & DXEPCTL_EPENA)) + if (!(dwc2_readl(hsotg, epctrl_reg) & DXEPCTL_EPENA)) dev_dbg(hsotg->dev, "ep%d: failed to become enabled (DXEPCTL=0x%08x)?\n", - index, dwc2_readl(hsotg->regs + epctrl_reg)); + index, dwc2_readl(hsotg, epctrl_reg)); dev_dbg(hsotg->dev, "%s: DXEPCTL=0x%08x\n", - __func__, dwc2_readl(hsotg->regs + epctrl_reg)); + __func__, dwc2_readl(hsotg, epctrl_reg)); /* enable ep interrupts */ dwc2_hsotg_ctrl_epint(hsotg, hs_ep->index, hs_ep->dir_in, 1); @@ -1460,7 +1467,7 @@ static struct dwc2_hsotg_ep *ep_from_windex(struct dwc2_hsotg *hsotg, */ int dwc2_hsotg_set_test_mode(struct dwc2_hsotg *hsotg, int testmode) { - int dctl = dwc2_readl(hsotg->regs + DCTL); + int dctl = dwc2_readl(hsotg, DCTL); dctl &= ~DCTL_TSTCTL_MASK; switch (testmode) { @@ -1474,7 +1481,7 @@ int dwc2_hsotg_set_test_mode(struct dwc2_hsotg *hsotg, int testmode) default: return -EINVAL; } - dwc2_writel(dctl, hsotg->regs + DCTL); + dwc2_writel(hsotg, dctl, DCTL); return 0; } @@ -1628,9 +1635,9 @@ static void dwc2_gadget_start_next_request(struct dwc2_hsotg_ep *hs_ep) } else { dev_dbg(hsotg->dev, "%s: No more ISOC-OUT requests\n", __func__); - mask = dwc2_readl(hsotg->regs + epmsk_reg); + mask = dwc2_readl(hsotg, epmsk_reg); mask |= DOEPMSK_OUTTKNEPDISMSK; - dwc2_writel(mask, hsotg->regs + epmsk_reg); + dwc2_writel(hsotg, mask, epmsk_reg); } } @@ -1767,14 +1774,14 @@ static void dwc2_hsotg_stall_ep0(struct dwc2_hsotg *hsotg) * taken effect, so no need to clear later. */ - ctrl = dwc2_readl(hsotg->regs + reg); + ctrl = dwc2_readl(hsotg, reg); ctrl |= DXEPCTL_STALL; ctrl |= DXEPCTL_CNAK; - dwc2_writel(ctrl, hsotg->regs + reg); + dwc2_writel(hsotg, ctrl, reg); dev_dbg(hsotg->dev, "written DXEPCTL=0x%08x to %08x (DXEPCTL=0x%08x)\n", - ctrl, reg, dwc2_readl(hsotg->regs + reg)); + ctrl, reg, dwc2_readl(hsotg, reg)); /* * complete won't be called, so we enqueue @@ -1819,11 +1826,11 @@ static void dwc2_hsotg_process_control(struct dwc2_hsotg *hsotg, switch (ctrl->bRequest) { case USB_REQ_SET_ADDRESS: hsotg->connected = 1; - dcfg = dwc2_readl(hsotg->regs + DCFG); + dcfg = dwc2_readl(hsotg, DCFG); dcfg &= ~DCFG_DEVADDR_MASK; dcfg |= (le16_to_cpu(ctrl->wValue) << DCFG_DEVADDR_SHIFT) & DCFG_DEVADDR_MASK; - dwc2_writel(dcfg, hsotg->regs + DCFG); + dwc2_writel(hsotg, dcfg, DCFG); dev_info(hsotg->dev, "new address %d\n", ctrl->wValue); @@ -1949,16 +1956,16 @@ static void dwc2_hsotg_program_zlp(struct dwc2_hsotg *hsotg, dwc2_gadget_config_nonisoc_xfer_ddma(hs_ep, dma, 0); } else { - dwc2_writel(DXEPTSIZ_MC(1) | DXEPTSIZ_PKTCNT(1) | - DXEPTSIZ_XFERSIZE(0), hsotg->regs + + dwc2_writel(hsotg, DXEPTSIZ_MC(1) | DXEPTSIZ_PKTCNT(1) | + DXEPTSIZ_XFERSIZE(0), epsiz_reg); } - ctrl = dwc2_readl(hsotg->regs + epctl_reg); + ctrl = dwc2_readl(hsotg, epctl_reg); ctrl |= DXEPCTL_CNAK; /* clear NAK set by core */ ctrl |= DXEPCTL_EPENA; /* ensure ep enabled */ ctrl |= DXEPCTL_USBACTEP; - dwc2_writel(ctrl, hsotg->regs + epctl_reg); + dwc2_writel(hsotg, ctrl, epctl_reg); } /** @@ -2118,13 +2125,12 @@ static void dwc2_hsotg_rx_data(struct dwc2_hsotg *hsotg, int ep_idx, int size) { struct dwc2_hsotg_ep *hs_ep = hsotg->eps_out[ep_idx]; struct dwc2_hsotg_req *hs_req = hs_ep->req; - void __iomem *fifo = hsotg->regs + EPFIFO(ep_idx); int to_read; int max_req; int read_ptr; if (!hs_req) { - u32 epctl = dwc2_readl(hsotg->regs + DOEPCTL(ep_idx)); + u32 epctl = dwc2_readl(hsotg, DOEPCTL(ep_idx)); int ptr; dev_dbg(hsotg->dev, @@ -2133,7 +2139,7 @@ static void dwc2_hsotg_rx_data(struct dwc2_hsotg *hsotg, int ep_idx, int size) /* dump the data from the FIFO, we've nothing we can do */ for (ptr = 0; ptr < size; ptr += 4) - (void)dwc2_readl(fifo); + (void)dwc2_readl(hsotg, EPFIFO(ep_idx)); return; } @@ -2163,7 +2169,8 @@ static void dwc2_hsotg_rx_data(struct dwc2_hsotg *hsotg, int ep_idx, int size) * note, we might over-write the buffer end by 3 bytes depending on * alignment of the data. */ - ioread32_rep(fifo, hs_req->req.buf + read_ptr, to_read); + dwc2_readl_rep(hsotg, EPFIFO(ep_idx), + hs_req->req.buf + read_ptr, to_read); } /** @@ -2192,12 +2199,12 @@ static void dwc2_hsotg_change_ep_iso_parity(struct dwc2_hsotg *hsotg, { u32 ctrl; - ctrl = dwc2_readl(hsotg->regs + epctl_reg); + ctrl = dwc2_readl(hsotg, epctl_reg); if (ctrl & DXEPCTL_EOFRNUM) ctrl |= DXEPCTL_SETEVENFR; else ctrl |= DXEPCTL_SETODDFR; - dwc2_writel(ctrl, hsotg->regs + epctl_reg); + dwc2_writel(hsotg, ctrl, epctl_reg); } /* @@ -2241,7 +2248,7 @@ static unsigned int dwc2_gadget_get_xfersize_ddma(struct dwc2_hsotg_ep *hs_ep) */ static void dwc2_hsotg_handle_outdone(struct dwc2_hsotg *hsotg, int epnum) { - u32 epsize = dwc2_readl(hsotg->regs + DOEPTSIZ(epnum)); + u32 epsize = dwc2_readl(hsotg, DOEPTSIZ(epnum)); struct dwc2_hsotg_ep *hs_ep = hsotg->eps_out[epnum]; struct dwc2_hsotg_req *hs_req = hs_ep->req; struct usb_request *req = &hs_req->req; @@ -2337,7 +2344,7 @@ static void dwc2_hsotg_handle_outdone(struct dwc2_hsotg *hsotg, int epnum) */ static void dwc2_hsotg_handle_rx(struct dwc2_hsotg *hsotg) { - u32 grxstsr = dwc2_readl(hsotg->regs + GRXSTSP); + u32 grxstsr = dwc2_readl(hsotg, GRXSTSP); u32 epnum, status, size; WARN_ON(using_dma(hsotg)); @@ -2368,7 +2375,7 @@ static void dwc2_hsotg_handle_rx(struct dwc2_hsotg *hsotg) dev_dbg(hsotg->dev, "SetupDone (Frame=0x%08x, DOPEPCTL=0x%08x)\n", dwc2_hsotg_read_frameno(hsotg), - dwc2_readl(hsotg->regs + DOEPCTL(0))); + dwc2_readl(hsotg, DOEPCTL(0))); /* * Call dwc2_hsotg_handle_outdone here if it was not called from * GRXSTS_PKTSTS_OUTDONE. That is, if the core didn't @@ -2386,7 +2393,7 @@ static void dwc2_hsotg_handle_rx(struct dwc2_hsotg *hsotg) dev_dbg(hsotg->dev, "SetupRX (Frame=0x%08x, DOPEPCTL=0x%08x)\n", dwc2_hsotg_read_frameno(hsotg), - dwc2_readl(hsotg->regs + DOEPCTL(0))); + dwc2_readl(hsotg, DOEPCTL(0))); WARN_ON(hsotg->ep0_state != DWC2_EP0_SETUP); @@ -2440,7 +2447,6 @@ static void dwc2_hsotg_set_ep_maxpacket(struct dwc2_hsotg *hsotg, unsigned int mc, unsigned int dir_in) { struct dwc2_hsotg_ep *hs_ep; - void __iomem *regs = hsotg->regs; u32 reg; hs_ep = index_to_ep(hsotg, ep, dir_in); @@ -2466,15 +2472,15 @@ static void dwc2_hsotg_set_ep_maxpacket(struct dwc2_hsotg *hsotg, } if (dir_in) { - reg = dwc2_readl(regs + DIEPCTL(ep)); + reg = dwc2_readl(hsotg, DIEPCTL(ep)); reg &= ~DXEPCTL_MPS_MASK; reg |= mps; - dwc2_writel(reg, regs + DIEPCTL(ep)); + dwc2_writel(hsotg, reg, DIEPCTL(ep)); } else { - reg = dwc2_readl(regs + DOEPCTL(ep)); + reg = dwc2_readl(hsotg, DOEPCTL(ep)); reg &= ~DXEPCTL_MPS_MASK; reg |= mps; - dwc2_writel(reg, regs + DOEPCTL(ep)); + dwc2_writel(hsotg, reg, DOEPCTL(ep)); } return; @@ -2490,8 +2496,8 @@ bad_mps: */ static void dwc2_hsotg_txfifo_flush(struct dwc2_hsotg *hsotg, unsigned int idx) { - dwc2_writel(GRSTCTL_TXFNUM(idx) | GRSTCTL_TXFFLSH, - hsotg->regs + GRSTCTL); + dwc2_writel(hsotg, GRSTCTL_TXFNUM(idx) | GRSTCTL_TXFFLSH, + GRSTCTL); /* wait until the fifo is flushed */ if (dwc2_hsotg_wait_bit_clear(hsotg, GRSTCTL, GRSTCTL_TXFFLSH, 100)) @@ -2544,7 +2550,7 @@ static void dwc2_hsotg_complete_in(struct dwc2_hsotg *hsotg, struct dwc2_hsotg_ep *hs_ep) { struct dwc2_hsotg_req *hs_req = hs_ep->req; - u32 epsize = dwc2_readl(hsotg->regs + DIEPTSIZ(hs_ep->index)); + u32 epsize = dwc2_readl(hsotg, DIEPTSIZ(hs_ep->index)); int size_left, size_done; if (!hs_req) { @@ -2648,12 +2654,12 @@ static u32 dwc2_gadget_read_ep_interrupts(struct dwc2_hsotg *hsotg, u32 mask; u32 diepempmsk; - mask = dwc2_readl(hsotg->regs + epmsk_reg); - diepempmsk = dwc2_readl(hsotg->regs + DIEPEMPMSK); + mask = dwc2_readl(hsotg, epmsk_reg); + diepempmsk = dwc2_readl(hsotg, DIEPEMPMSK); mask |= ((diepempmsk >> idx) & 0x1) ? DIEPMSK_TXFIFOEMPTY : 0; mask |= DXEPINT_SETUP_RCVD; - ints = dwc2_readl(hsotg->regs + epint_reg); + ints = dwc2_readl(hsotg, epint_reg); ints &= mask; return ints; } @@ -2678,12 +2684,12 @@ static void dwc2_gadget_handle_ep_disabled(struct dwc2_hsotg_ep *hs_ep) unsigned char idx = hs_ep->index; int dir_in = hs_ep->dir_in; u32 epctl_reg = dir_in ? DIEPCTL(idx) : DOEPCTL(idx); - int dctl = dwc2_readl(hsotg->regs + DCTL); + int dctl = dwc2_readl(hsotg, DCTL); dev_dbg(hsotg->dev, "%s: EPDisbld\n", __func__); if (dir_in) { - int epctl = dwc2_readl(hsotg->regs + epctl_reg); + int epctl = dwc2_readl(hsotg, epctl_reg); dwc2_hsotg_txfifo_flush(hsotg, hs_ep->fifo_index); @@ -2693,17 +2699,17 @@ static void dwc2_gadget_handle_ep_disabled(struct dwc2_hsotg_ep *hs_ep) } if ((epctl & DXEPCTL_STALL) && (epctl & DXEPCTL_EPTYPE_BULK)) { - int dctl = dwc2_readl(hsotg->regs + DCTL); + int dctl = dwc2_readl(hsotg, DCTL); dctl |= DCTL_CGNPINNAK; - dwc2_writel(dctl, hsotg->regs + DCTL); + dwc2_writel(hsotg, dctl, DCTL); } return; } if (dctl & DCTL_GOUTNAKSTS) { dctl |= DCTL_CGOUTNAK; - dwc2_writel(dctl, hsotg->regs + DCTL); + dwc2_writel(hsotg, dctl, DCTL); } if (!hs_ep->isochronous) @@ -2744,23 +2750,14 @@ static void dwc2_gadget_handle_out_token_ep_disabled(struct dwc2_hsotg_ep *ep) struct dwc2_hsotg *hsotg = ep->parent; int dir_in = ep->dir_in; u32 doepmsk; - u32 tmp; if (dir_in || !ep->isochronous) return; - /* - * Store frame in which irq was asserted here, as - * it can change while completing request below. - */ - tmp = dwc2_hsotg_read_frameno(hsotg); - - dwc2_hsotg_complete_request(hsotg, ep, get_ep_head(ep), 0); - if (using_desc_dma(hsotg)) { if (ep->target_frame == TARGET_FRAME_INITIAL) { /* Start first ISO Out */ - ep->target_frame = tmp; + ep->target_frame = hsotg->frame_number; dwc2_gadget_start_isoc_ddma(ep); } return; @@ -2768,26 +2765,24 @@ static void dwc2_gadget_handle_out_token_ep_disabled(struct dwc2_hsotg_ep *ep) if (ep->interval > 1 && ep->target_frame == TARGET_FRAME_INITIAL) { - u32 dsts; u32 ctrl; - dsts = dwc2_readl(hsotg->regs + DSTS); - ep->target_frame = dwc2_hsotg_read_frameno(hsotg); + ep->target_frame = hsotg->frame_number; dwc2_gadget_incr_frame_num(ep); - ctrl = dwc2_readl(hsotg->regs + DOEPCTL(ep->index)); + ctrl = dwc2_readl(hsotg, DOEPCTL(ep->index)); if (ep->target_frame & 0x1) ctrl |= DXEPCTL_SETODDFR; else ctrl |= DXEPCTL_SETEVENFR; - dwc2_writel(ctrl, hsotg->regs + DOEPCTL(ep->index)); + dwc2_writel(hsotg, ctrl, DOEPCTL(ep->index)); } dwc2_gadget_start_next_request(ep); - doepmsk = dwc2_readl(hsotg->regs + DOEPMSK); + doepmsk = dwc2_readl(hsotg, DOEPMSK); doepmsk &= ~DOEPMSK_OUTTKNEPDISMSK; - dwc2_writel(doepmsk, hsotg->regs + DOEPMSK); + dwc2_writel(hsotg, doepmsk, DOEPMSK); } /** @@ -2808,34 +2803,29 @@ static void dwc2_gadget_handle_nak(struct dwc2_hsotg_ep *hs_ep) { struct dwc2_hsotg *hsotg = hs_ep->parent; int dir_in = hs_ep->dir_in; - u32 tmp; if (!dir_in || !hs_ep->isochronous) return; if (hs_ep->target_frame == TARGET_FRAME_INITIAL) { - tmp = dwc2_hsotg_read_frameno(hsotg); if (using_desc_dma(hsotg)) { - dwc2_hsotg_complete_request(hsotg, hs_ep, - get_ep_head(hs_ep), 0); - - hs_ep->target_frame = tmp; + hs_ep->target_frame = hsotg->frame_number; dwc2_gadget_incr_frame_num(hs_ep); dwc2_gadget_start_isoc_ddma(hs_ep); return; } - hs_ep->target_frame = tmp; + hs_ep->target_frame = hsotg->frame_number; if (hs_ep->interval > 1) { - u32 ctrl = dwc2_readl(hsotg->regs + + u32 ctrl = dwc2_readl(hsotg, DIEPCTL(hs_ep->index)); if (hs_ep->target_frame & 0x1) ctrl |= DXEPCTL_SETODDFR; else ctrl |= DXEPCTL_SETEVENFR; - dwc2_writel(ctrl, hsotg->regs + DIEPCTL(hs_ep->index)); + dwc2_writel(hsotg, ctrl, DIEPCTL(hs_ep->index)); } dwc2_hsotg_complete_request(hsotg, hs_ep, @@ -2865,10 +2855,10 @@ static void dwc2_hsotg_epint(struct dwc2_hsotg *hsotg, unsigned int idx, u32 ctrl; ints = dwc2_gadget_read_ep_interrupts(hsotg, idx, dir_in); - ctrl = dwc2_readl(hsotg->regs + epctl_reg); + ctrl = dwc2_readl(hsotg, epctl_reg); /* Clear endpoint interrupts */ - dwc2_writel(ints, hsotg->regs + epint_reg); + dwc2_writel(hsotg, ints, epint_reg); if (!hs_ep) { dev_err(hsotg->dev, "%s:Interrupt for unconfigured ep%d(%s)\n", @@ -2896,8 +2886,8 @@ static void dwc2_hsotg_epint(struct dwc2_hsotg *hsotg, unsigned int idx, if (ints & DXEPINT_XFERCOMPL) { dev_dbg(hsotg->dev, "%s: XferCompl: DxEPCTL=0x%08x, DXEPTSIZ=%08x\n", - __func__, dwc2_readl(hsotg->regs + epctl_reg), - dwc2_readl(hsotg->regs + epsiz_reg)); + __func__, dwc2_readl(hsotg, epctl_reg), + dwc2_readl(hsotg, epsiz_reg)); /* In DDMA handle isochronous requests separately */ if (using_desc_dma(hsotg) && hs_ep->isochronous) { @@ -3015,7 +3005,7 @@ static void dwc2_hsotg_epint(struct dwc2_hsotg *hsotg, unsigned int idx, */ static void dwc2_hsotg_irq_enumdone(struct dwc2_hsotg *hsotg) { - u32 dsts = dwc2_readl(hsotg->regs + DSTS); + u32 dsts = dwc2_readl(hsotg, DSTS); int ep0_mps = 0, ep_mps = 8; /* @@ -3086,8 +3076,8 @@ static void dwc2_hsotg_irq_enumdone(struct dwc2_hsotg *hsotg) dwc2_hsotg_enqueue_setup(hsotg); dev_dbg(hsotg->dev, "EP0: DIEPCTL0=0x%08x, DOEPCTL0=0x%08x\n", - dwc2_readl(hsotg->regs + DIEPCTL0), - dwc2_readl(hsotg->regs + DOEPCTL0)); + dwc2_readl(hsotg, DIEPCTL0), + dwc2_readl(hsotg, DOEPCTL0)); } /** @@ -3114,7 +3104,7 @@ static void kill_all_requests(struct dwc2_hsotg *hsotg, if (!hsotg->dedicated_fifos) return; - size = (dwc2_readl(hsotg->regs + DTXFSTS(ep->fifo_index)) & 0xffff) * 4; + size = (dwc2_readl(hsotg, DTXFSTS(ep->fifo_index)) & 0xffff) * 4; if (size < ep->fifo_size) dwc2_hsotg_txfifo_flush(hsotg, ep->fifo_index); } @@ -3215,7 +3205,7 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg, */ /* keep other bits untouched (so e.g. forced modes are not lost) */ - usbcfg = dwc2_readl(hsotg->regs + GUSBCFG); + usbcfg = dwc2_readl(hsotg, GUSBCFG); usbcfg &= ~(GUSBCFG_TOUTCAL_MASK | GUSBCFG_PHYIF16 | GUSBCFG_SRPCAP | GUSBCFG_HNPCAP | GUSBCFG_USBTRDTIM_MASK); @@ -3230,12 +3220,12 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg, usbcfg |= hsotg->phyif | GUSBCFG_TOUTCAL(7) | (val << GUSBCFG_USBTRDTIM_SHIFT); } - dwc2_writel(usbcfg, hsotg->regs + GUSBCFG); + dwc2_writel(hsotg, usbcfg, GUSBCFG); dwc2_hsotg_init_fifo(hsotg); if (!is_usb_reset) - dwc2_set_bit(hsotg->regs + DCTL, DCTL_SFTDISCON); + dwc2_set_bit(hsotg, DCTL, DCTL_SFTDISCON); dcfg |= DCFG_EPMISCNT(1); @@ -3256,13 +3246,13 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg, if (hsotg->params.ipg_isoc_en) dcfg |= DCFG_IPG_ISOC_SUPPORDED; - dwc2_writel(dcfg, hsotg->regs + DCFG); + dwc2_writel(hsotg, dcfg, DCFG); /* Clear any pending OTG interrupts */ - dwc2_writel(0xffffffff, hsotg->regs + GOTGINT); + dwc2_writel(hsotg, 0xffffffff, GOTGINT); /* Clear any pending interrupts */ - dwc2_writel(0xffffffff, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, 0xffffffff, GINTSTS); intmsk = GINTSTS_ERLYSUSP | GINTSTS_SESSREQINT | GINTSTS_GOUTNAKEFF | GINTSTS_GINNAKEFF | GINTSTS_USBRST | GINTSTS_RESETDET | @@ -3276,22 +3266,22 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg, if (!hsotg->params.external_id_pin_ctl) intmsk |= GINTSTS_CONIDSTSCHNG; - dwc2_writel(intmsk, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, intmsk, GINTMSK); if (using_dma(hsotg)) { - dwc2_writel(GAHBCFG_GLBL_INTR_EN | GAHBCFG_DMA_EN | + dwc2_writel(hsotg, GAHBCFG_GLBL_INTR_EN | GAHBCFG_DMA_EN | hsotg->params.ahbcfg, - hsotg->regs + GAHBCFG); + GAHBCFG); /* Set DDMA mode support in the core if needed */ if (using_desc_dma(hsotg)) - dwc2_set_bit(hsotg->regs + DCFG, DCFG_DESCDMA_EN); + dwc2_set_bit(hsotg, DCFG, DCFG_DESCDMA_EN); } else { - dwc2_writel(((hsotg->dedicated_fifos) ? + dwc2_writel(hsotg, ((hsotg->dedicated_fifos) ? (GAHBCFG_NP_TXF_EMP_LVL | GAHBCFG_P_TXF_EMP_LVL) : 0) | - GAHBCFG_GLBL_INTR_EN, hsotg->regs + GAHBCFG); + GAHBCFG_GLBL_INTR_EN, GAHBCFG); } /* @@ -3300,33 +3290,33 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg, * interrupts. */ - dwc2_writel(((hsotg->dedicated_fifos && !using_dma(hsotg)) ? + dwc2_writel(hsotg, ((hsotg->dedicated_fifos && !using_dma(hsotg)) ? DIEPMSK_TXFIFOEMPTY | DIEPMSK_INTKNTXFEMPMSK : 0) | DIEPMSK_EPDISBLDMSK | DIEPMSK_XFERCOMPLMSK | DIEPMSK_TIMEOUTMSK | DIEPMSK_AHBERRMSK, - hsotg->regs + DIEPMSK); + DIEPMSK); /* * don't need XferCompl, we get that from RXFIFO in slave mode. In * DMA mode we may need this and StsPhseRcvd. */ - dwc2_writel((using_dma(hsotg) ? (DIEPMSK_XFERCOMPLMSK | + dwc2_writel(hsotg, (using_dma(hsotg) ? (DIEPMSK_XFERCOMPLMSK | DOEPMSK_STSPHSERCVDMSK) : 0) | DOEPMSK_EPDISBLDMSK | DOEPMSK_AHBERRMSK | DOEPMSK_SETUPMSK, - hsotg->regs + DOEPMSK); + DOEPMSK); /* Enable BNA interrupt for DDMA */ if (using_desc_dma(hsotg)) { - dwc2_set_bit(hsotg->regs + DOEPMSK, DOEPMSK_BNAMSK); - dwc2_set_bit(hsotg->regs + DIEPMSK, DIEPMSK_BNAININTRMSK); + dwc2_set_bit(hsotg, DOEPMSK, DOEPMSK_BNAMSK); + dwc2_set_bit(hsotg, DIEPMSK, DIEPMSK_BNAININTRMSK); } - dwc2_writel(0, hsotg->regs + DAINTMSK); + dwc2_writel(hsotg, 0, DAINTMSK); dev_dbg(hsotg->dev, "EP0: DIEPCTL0=0x%08x, DOEPCTL0=0x%08x\n", - dwc2_readl(hsotg->regs + DIEPCTL0), - dwc2_readl(hsotg->regs + DOEPCTL0)); + dwc2_readl(hsotg, DIEPCTL0), + dwc2_readl(hsotg, DOEPCTL0)); /* enable in and out endpoint interrupts */ dwc2_hsotg_en_gsint(hsotg, GINTSTS_OEPINT | GINTSTS_IEPINT); @@ -3344,12 +3334,12 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg, dwc2_hsotg_ctrl_epint(hsotg, 0, 1, 1); if (!is_usb_reset) { - dwc2_set_bit(hsotg->regs + DCTL, DCTL_PWRONPRGDONE); + dwc2_set_bit(hsotg, DCTL, DCTL_PWRONPRGDONE); udelay(10); /* see openiboot */ - dwc2_clear_bit(hsotg->regs + DCTL, DCTL_PWRONPRGDONE); + dwc2_clear_bit(hsotg, DCTL, DCTL_PWRONPRGDONE); } - dev_dbg(hsotg->dev, "DCTL=0x%08x\n", dwc2_readl(hsotg->regs + DCTL)); + dev_dbg(hsotg->dev, "DCTL=0x%08x\n", dwc2_readl(hsotg, DCTL)); /* * DxEPCTL_USBActEp says RO in manual, but seems to be set by @@ -3357,23 +3347,23 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg, */ /* set to read 1 8byte packet */ - dwc2_writel(DXEPTSIZ_MC(1) | DXEPTSIZ_PKTCNT(1) | - DXEPTSIZ_XFERSIZE(8), hsotg->regs + DOEPTSIZ0); + dwc2_writel(hsotg, DXEPTSIZ_MC(1) | DXEPTSIZ_PKTCNT(1) | + DXEPTSIZ_XFERSIZE(8), DOEPTSIZ0); - dwc2_writel(dwc2_hsotg_ep0_mps(hsotg->eps_out[0]->ep.maxpacket) | + dwc2_writel(hsotg, dwc2_hsotg_ep0_mps(hsotg->eps_out[0]->ep.maxpacket) | DXEPCTL_CNAK | DXEPCTL_EPENA | DXEPCTL_USBACTEP, - hsotg->regs + DOEPCTL0); + DOEPCTL0); /* enable, but don't activate EP0in */ - dwc2_writel(dwc2_hsotg_ep0_mps(hsotg->eps_out[0]->ep.maxpacket) | - DXEPCTL_USBACTEP, hsotg->regs + DIEPCTL0); + dwc2_writel(hsotg, dwc2_hsotg_ep0_mps(hsotg->eps_out[0]->ep.maxpacket) | + DXEPCTL_USBACTEP, DIEPCTL0); /* clear global NAKs */ val = DCTL_CGOUTNAK | DCTL_CGNPINNAK; if (!is_usb_reset) val |= DCTL_SFTDISCON; - dwc2_set_bit(hsotg->regs + DCTL, val); + dwc2_set_bit(hsotg, DCTL, val); /* configure the core to support LPM */ dwc2_gadget_init_lpm(hsotg); @@ -3386,20 +3376,20 @@ void dwc2_hsotg_core_init_disconnected(struct dwc2_hsotg *hsotg, dwc2_hsotg_enqueue_setup(hsotg); dev_dbg(hsotg->dev, "EP0: DIEPCTL0=0x%08x, DOEPCTL0=0x%08x\n", - dwc2_readl(hsotg->regs + DIEPCTL0), - dwc2_readl(hsotg->regs + DOEPCTL0)); + dwc2_readl(hsotg, DIEPCTL0), + dwc2_readl(hsotg, DOEPCTL0)); } static void dwc2_hsotg_core_disconnect(struct dwc2_hsotg *hsotg) { /* set the soft-disconnect bit */ - dwc2_set_bit(hsotg->regs + DCTL, DCTL_SFTDISCON); + dwc2_set_bit(hsotg, DCTL, DCTL_SFTDISCON); } void dwc2_hsotg_core_connect(struct dwc2_hsotg *hsotg) { /* remove the soft-disconnect and let's go */ - dwc2_clear_bit(hsotg->regs + DCTL, DCTL_SFTDISCON); + dwc2_clear_bit(hsotg, DCTL, DCTL_SFTDISCON); } /** @@ -3424,25 +3414,25 @@ static void dwc2_gadget_handle_incomplete_isoc_in(struct dwc2_hsotg *hsotg) dev_dbg(hsotg->dev, "Incomplete isoc in interrupt received:\n"); - daintmsk = dwc2_readl(hsotg->regs + DAINTMSK); + daintmsk = dwc2_readl(hsotg, DAINTMSK); for (idx = 1; idx < hsotg->num_of_eps; idx++) { hs_ep = hsotg->eps_in[idx]; /* Proceed only unmasked ISOC EPs */ - if (!hs_ep->isochronous || (BIT(idx) & ~daintmsk)) + if ((BIT(idx) & ~daintmsk) || !hs_ep->isochronous) continue; - epctrl = dwc2_readl(hsotg->regs + DIEPCTL(idx)); + epctrl = dwc2_readl(hsotg, DIEPCTL(idx)); if ((epctrl & DXEPCTL_EPENA) && dwc2_gadget_target_frame_elapsed(hs_ep)) { epctrl |= DXEPCTL_SNAK; epctrl |= DXEPCTL_EPDIS; - dwc2_writel(epctrl, hsotg->regs + DIEPCTL(idx)); + dwc2_writel(hsotg, epctrl, DIEPCTL(idx)); } } /* Clear interrupt */ - dwc2_writel(GINTSTS_INCOMPL_SOIN, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, GINTSTS_INCOMPL_SOIN, GINTSTS); } /** @@ -3469,33 +3459,33 @@ static void dwc2_gadget_handle_incomplete_isoc_out(struct dwc2_hsotg *hsotg) dev_dbg(hsotg->dev, "%s: GINTSTS_INCOMPL_SOOUT\n", __func__); - daintmsk = dwc2_readl(hsotg->regs + DAINTMSK); + daintmsk = dwc2_readl(hsotg, DAINTMSK); daintmsk >>= DAINT_OUTEP_SHIFT; for (idx = 1; idx < hsotg->num_of_eps; idx++) { hs_ep = hsotg->eps_out[idx]; /* Proceed only unmasked ISOC EPs */ - if (!hs_ep->isochronous || (BIT(idx) & ~daintmsk)) + if ((BIT(idx) & ~daintmsk) || !hs_ep->isochronous) continue; - epctrl = dwc2_readl(hsotg->regs + DOEPCTL(idx)); + epctrl = dwc2_readl(hsotg, DOEPCTL(idx)); if ((epctrl & DXEPCTL_EPENA) && dwc2_gadget_target_frame_elapsed(hs_ep)) { /* Unmask GOUTNAKEFF interrupt */ - gintmsk = dwc2_readl(hsotg->regs + GINTMSK); + gintmsk = dwc2_readl(hsotg, GINTMSK); gintmsk |= GINTSTS_GOUTNAKEFF; - dwc2_writel(gintmsk, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, gintmsk, GINTMSK); - gintsts = dwc2_readl(hsotg->regs + GINTSTS); + gintsts = dwc2_readl(hsotg, GINTSTS); if (!(gintsts & GINTSTS_GOUTNAKEFF)) { - dwc2_set_bit(hsotg->regs + DCTL, DCTL_SGOUTNAK); + dwc2_set_bit(hsotg, DCTL, DCTL_SGOUTNAK); break; } } } /* Clear interrupt */ - dwc2_writel(GINTSTS_INCOMPL_SOOUT, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, GINTSTS_INCOMPL_SOOUT, GINTSTS); } /** @@ -3515,8 +3505,8 @@ static irqreturn_t dwc2_hsotg_irq(int irq, void *pw) spin_lock(&hsotg->lock); irq_retry: - gintsts = dwc2_readl(hsotg->regs + GINTSTS); - gintmsk = dwc2_readl(hsotg->regs + GINTMSK); + gintsts = dwc2_readl(hsotg, GINTSTS); + gintmsk = dwc2_readl(hsotg, GINTMSK); dev_dbg(hsotg->dev, "%s: %08x %08x (%08x) retry %d\n", __func__, gintsts, gintsts & gintmsk, gintmsk, retry_count); @@ -3526,7 +3516,7 @@ irq_retry: if (gintsts & GINTSTS_RESETDET) { dev_dbg(hsotg->dev, "%s: USBRstDet\n", __func__); - dwc2_writel(GINTSTS_RESETDET, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, GINTSTS_RESETDET, GINTSTS); /* This event must be used only if controller is suspended */ if (hsotg->lx_state == DWC2_L2) { @@ -3536,34 +3526,34 @@ irq_retry: } if (gintsts & (GINTSTS_USBRST | GINTSTS_RESETDET)) { - u32 usb_status = dwc2_readl(hsotg->regs + GOTGCTL); + u32 usb_status = dwc2_readl(hsotg, GOTGCTL); u32 connected = hsotg->connected; dev_dbg(hsotg->dev, "%s: USBRst\n", __func__); dev_dbg(hsotg->dev, "GNPTXSTS=%08x\n", - dwc2_readl(hsotg->regs + GNPTXSTS)); + dwc2_readl(hsotg, GNPTXSTS)); - dwc2_writel(GINTSTS_USBRST, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, GINTSTS_USBRST, GINTSTS); /* Report disconnection if it is not already done. */ dwc2_hsotg_disconnect(hsotg); /* Reset device address to zero */ - dwc2_clear_bit(hsotg->regs + DCFG, DCFG_DEVADDR_MASK); + dwc2_clear_bit(hsotg, DCFG, DCFG_DEVADDR_MASK); if (usb_status & GOTGCTL_BSESVLD && connected) dwc2_hsotg_core_init_disconnected(hsotg, true); } if (gintsts & GINTSTS_ENUMDONE) { - dwc2_writel(GINTSTS_ENUMDONE, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, GINTSTS_ENUMDONE, GINTSTS); dwc2_hsotg_irq_enumdone(hsotg); } if (gintsts & (GINTSTS_OEPINT | GINTSTS_IEPINT)) { - u32 daint = dwc2_readl(hsotg->regs + DAINT); - u32 daintmsk = dwc2_readl(hsotg->regs + DAINTMSK); + u32 daint = dwc2_readl(hsotg, DAINT); + u32 daintmsk = dwc2_readl(hsotg, DAINTMSK); u32 daint_out, daint_in; int ep; @@ -3622,7 +3612,7 @@ irq_retry: if (gintsts & GINTSTS_ERLYSUSP) { dev_dbg(hsotg->dev, "GINTSTS_ErlySusp\n"); - dwc2_writel(GINTSTS_ERLYSUSP, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, GINTSTS_ERLYSUSP, GINTSTS); } /* @@ -3638,26 +3628,26 @@ irq_retry: u32 daintmsk; struct dwc2_hsotg_ep *hs_ep; - daintmsk = dwc2_readl(hsotg->regs + DAINTMSK); + daintmsk = dwc2_readl(hsotg, DAINTMSK); daintmsk >>= DAINT_OUTEP_SHIFT; /* Mask this interrupt */ - gintmsk = dwc2_readl(hsotg->regs + GINTMSK); + gintmsk = dwc2_readl(hsotg, GINTMSK); gintmsk &= ~GINTSTS_GOUTNAKEFF; - dwc2_writel(gintmsk, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, gintmsk, GINTMSK); dev_dbg(hsotg->dev, "GOUTNakEff triggered\n"); for (idx = 1; idx < hsotg->num_of_eps; idx++) { hs_ep = hsotg->eps_out[idx]; /* Proceed only unmasked ISOC EPs */ - if (!hs_ep->isochronous || (BIT(idx) & ~daintmsk)) + if ((BIT(idx) & ~daintmsk) || !hs_ep->isochronous) continue; - epctrl = dwc2_readl(hsotg->regs + DOEPCTL(idx)); + epctrl = dwc2_readl(hsotg, DOEPCTL(idx)); if (epctrl & DXEPCTL_EPENA) { epctrl |= DXEPCTL_SNAK; epctrl |= DXEPCTL_EPDIS; - dwc2_writel(epctrl, hsotg->regs + DOEPCTL(idx)); + dwc2_writel(hsotg, epctrl, DOEPCTL(idx)); } } @@ -3667,7 +3657,7 @@ irq_retry: if (gintsts & GINTSTS_GINNAKEFF) { dev_info(hsotg->dev, "GINNakEff triggered\n"); - dwc2_set_bit(hsotg->regs + DCTL, DCTL_CGNPINNAK); + dwc2_set_bit(hsotg, DCTL, DCTL_CGNPINNAK); dwc2_hsotg_dump(hsotg); } @@ -3707,7 +3697,7 @@ static void dwc2_hsotg_ep_stop_xfr(struct dwc2_hsotg *hsotg, if (hs_ep->dir_in) { if (hsotg->dedicated_fifos || hs_ep->periodic) { - dwc2_set_bit(hsotg->regs + epctrl_reg, DXEPCTL_SNAK); + dwc2_set_bit(hsotg, epctrl_reg, DXEPCTL_SNAK); /* Wait for Nak effect */ if (dwc2_hsotg_wait_bit_set(hsotg, epint_reg, DXEPINT_INEPNAKEFF, 100)) @@ -3715,7 +3705,7 @@ static void dwc2_hsotg_ep_stop_xfr(struct dwc2_hsotg *hsotg, "%s: timeout DIEPINT.NAKEFF\n", __func__); } else { - dwc2_set_bit(hsotg->regs + DCTL, DCTL_SGNPINNAK); + dwc2_set_bit(hsotg, DCTL, DCTL_SGNPINNAK); /* Wait for Nak effect */ if (dwc2_hsotg_wait_bit_set(hsotg, GINTSTS, GINTSTS_GINNAKEFF, 100)) @@ -3724,8 +3714,8 @@ static void dwc2_hsotg_ep_stop_xfr(struct dwc2_hsotg *hsotg, __func__); } } else { - if (!(dwc2_readl(hsotg->regs + GINTSTS) & GINTSTS_GOUTNAKEFF)) - dwc2_set_bit(hsotg->regs + DCTL, DCTL_SGOUTNAK); + if (!(dwc2_readl(hsotg, GINTSTS) & GINTSTS_GOUTNAKEFF)) + dwc2_set_bit(hsotg, DCTL, DCTL_SGOUTNAK); /* Wait for global nak to take effect */ if (dwc2_hsotg_wait_bit_set(hsotg, GINTSTS, @@ -3735,7 +3725,7 @@ static void dwc2_hsotg_ep_stop_xfr(struct dwc2_hsotg *hsotg, } /* Disable ep */ - dwc2_set_bit(hsotg->regs + epctrl_reg, DXEPCTL_EPDIS | DXEPCTL_SNAK); + dwc2_set_bit(hsotg, epctrl_reg, DXEPCTL_EPDIS | DXEPCTL_SNAK); /* Wait for ep to be disabled */ if (dwc2_hsotg_wait_bit_set(hsotg, epint_reg, DXEPINT_EPDISBLD, 100)) @@ -3743,7 +3733,7 @@ static void dwc2_hsotg_ep_stop_xfr(struct dwc2_hsotg *hsotg, "%s: timeout DOEPCTL.EPDisable\n", __func__); /* Clear EPDISBLD interrupt */ - dwc2_set_bit(hsotg->regs + epint_reg, DXEPINT_EPDISBLD); + dwc2_set_bit(hsotg, epint_reg, DXEPINT_EPDISBLD); if (hs_ep->dir_in) { unsigned short fifo_index; @@ -3758,11 +3748,11 @@ static void dwc2_hsotg_ep_stop_xfr(struct dwc2_hsotg *hsotg, /* Clear Global In NP NAK in Shared FIFO for non periodic ep */ if (!hsotg->dedicated_fifos && !hs_ep->periodic) - dwc2_set_bit(hsotg->regs + DCTL, DCTL_CGNPINNAK); + dwc2_set_bit(hsotg, DCTL, DCTL_CGNPINNAK); } else { /* Remove global NAKs */ - dwc2_set_bit(hsotg->regs + DCTL, DCTL_CGOUTNAK); + dwc2_set_bit(hsotg, DCTL, DCTL_CGOUTNAK); } } @@ -3830,7 +3820,7 @@ static int dwc2_hsotg_ep_enable(struct usb_ep *ep, /* note, we handle this here instead of dwc2_hsotg_set_ep_maxpacket */ epctrl_reg = dir_in ? DIEPCTL(index) : DOEPCTL(index); - epctrl = dwc2_readl(hsotg->regs + epctrl_reg); + epctrl = dwc2_readl(hsotg, epctrl_reg); dev_dbg(hsotg->dev, "%s: read DxEPCTL=0x%08x from 0x%08x\n", __func__, epctrl, epctrl_reg); @@ -3878,13 +3868,13 @@ static int dwc2_hsotg_ep_enable(struct usb_ep *ep, hs_ep->compl_desc = 0; if (dir_in) { hs_ep->periodic = 1; - mask = dwc2_readl(hsotg->regs + DIEPMSK); + mask = dwc2_readl(hsotg, DIEPMSK); mask |= DIEPMSK_NAKMSK; - dwc2_writel(mask, hsotg->regs + DIEPMSK); + dwc2_writel(hsotg, mask, DIEPMSK); } else { - mask = dwc2_readl(hsotg->regs + DOEPMSK); + mask = dwc2_readl(hsotg, DOEPMSK); mask |= DOEPMSK_OUTTKNEPDISMSK; - dwc2_writel(mask, hsotg->regs + DOEPMSK); + dwc2_writel(hsotg, mask, DOEPMSK); } break; @@ -3919,7 +3909,7 @@ static int dwc2_hsotg_ep_enable(struct usb_ep *ep, for (i = 1; i < hsotg->num_of_eps; ++i) { if (hsotg->fifo_map & (1 << i)) continue; - val = dwc2_readl(hsotg->regs + DPTXFSIZN(i)); + val = dwc2_readl(hsotg, DPTXFSIZN(i)); val = (val >> FIFOSIZE_DEPTH_SHIFT) * 4; if (val < size) continue; @@ -3957,7 +3947,7 @@ static int dwc2_hsotg_ep_enable(struct usb_ep *ep, * to 4.00a (including both). Also for FS_IOT_1.00a * and HS_IOT_1.00a. */ - u32 gsnpsid = dwc2_readl(hsotg->regs + GSNPSID); + u32 gsnpsid = dwc2_readl(hsotg, GSNPSID); if ((gsnpsid >= DWC2_CORE_REV_2_72a && gsnpsid <= DWC2_CORE_REV_4_00a) || @@ -3969,9 +3959,9 @@ static int dwc2_hsotg_ep_enable(struct usb_ep *ep, dev_dbg(hsotg->dev, "%s: write DxEPCTL=0x%08x\n", __func__, epctrl); - dwc2_writel(epctrl, hsotg->regs + epctrl_reg); + dwc2_writel(hsotg, epctrl, epctrl_reg); dev_dbg(hsotg->dev, "%s: read DxEPCTL=0x%08x\n", - __func__, dwc2_readl(hsotg->regs + epctrl_reg)); + __func__, dwc2_readl(hsotg, epctrl_reg)); /* enable the endpoint interrupt */ dwc2_hsotg_ctrl_epint(hsotg, index, dir_in, 1); @@ -4020,7 +4010,7 @@ static int dwc2_hsotg_ep_disable(struct usb_ep *ep) spin_lock_irqsave(&hsotg->lock, flags); - ctrl = dwc2_readl(hsotg->regs + epctrl_reg); + ctrl = dwc2_readl(hsotg, epctrl_reg); if (ctrl & DXEPCTL_EPENA) dwc2_hsotg_ep_stop_xfr(hsotg, hs_ep); @@ -4030,7 +4020,7 @@ static int dwc2_hsotg_ep_disable(struct usb_ep *ep) ctrl |= DXEPCTL_SNAK; dev_dbg(hsotg->dev, "%s: DxEPCTL=0x%08x\n", __func__, ctrl); - dwc2_writel(ctrl, hsotg->regs + epctrl_reg); + dwc2_writel(hsotg, ctrl, epctrl_reg); /* disable endpoint interrupts */ dwc2_hsotg_ctrl_epint(hsotg, hs_ep->index, hs_ep->dir_in, 0); @@ -4137,7 +4127,7 @@ static int dwc2_hsotg_ep_sethalt(struct usb_ep *ep, int value, bool now) if (hs_ep->dir_in) { epreg = DIEPCTL(index); - epctl = dwc2_readl(hs->regs + epreg); + epctl = dwc2_readl(hs, epreg); if (value) { epctl |= DXEPCTL_STALL | DXEPCTL_SNAK; @@ -4150,10 +4140,10 @@ static int dwc2_hsotg_ep_sethalt(struct usb_ep *ep, int value, bool now) xfertype == DXEPCTL_EPTYPE_INTERRUPT) epctl |= DXEPCTL_SETD0PID; } - dwc2_writel(epctl, hs->regs + epreg); + dwc2_writel(hs, epctl, epreg); } else { epreg = DOEPCTL(index); - epctl = dwc2_readl(hs->regs + epreg); + epctl = dwc2_readl(hs, epreg); if (value) { epctl |= DXEPCTL_STALL; @@ -4164,7 +4154,7 @@ static int dwc2_hsotg_ep_sethalt(struct usb_ep *ep, int value, bool now) xfertype == DXEPCTL_EPTYPE_INTERRUPT) epctl |= DXEPCTL_SETD0PID; } - dwc2_writel(epctl, hs->regs + epreg); + dwc2_writel(hs, epctl, epreg); } hs_ep->halted = value; @@ -4212,29 +4202,29 @@ static void dwc2_hsotg_init(struct dwc2_hsotg *hsotg) u32 usbcfg; /* unmask subset of endpoint interrupts */ - dwc2_writel(DIEPMSK_TIMEOUTMSK | DIEPMSK_AHBERRMSK | + dwc2_writel(hsotg, DIEPMSK_TIMEOUTMSK | DIEPMSK_AHBERRMSK | DIEPMSK_EPDISBLDMSK | DIEPMSK_XFERCOMPLMSK, - hsotg->regs + DIEPMSK); + DIEPMSK); - dwc2_writel(DOEPMSK_SETUPMSK | DOEPMSK_AHBERRMSK | + dwc2_writel(hsotg, DOEPMSK_SETUPMSK | DOEPMSK_AHBERRMSK | DOEPMSK_EPDISBLDMSK | DOEPMSK_XFERCOMPLMSK, - hsotg->regs + DOEPMSK); + DOEPMSK); - dwc2_writel(0, hsotg->regs + DAINTMSK); + dwc2_writel(hsotg, 0, DAINTMSK); /* Be in disconnected state until gadget is registered */ - dwc2_set_bit(hsotg->regs + DCTL, DCTL_SFTDISCON); + dwc2_set_bit(hsotg, DCTL, DCTL_SFTDISCON); /* setup fifos */ dev_dbg(hsotg->dev, "GRXFSIZ=0x%08x, GNPTXFSIZ=0x%08x\n", - dwc2_readl(hsotg->regs + GRXFSIZ), - dwc2_readl(hsotg->regs + GNPTXFSIZ)); + dwc2_readl(hsotg, GRXFSIZ), + dwc2_readl(hsotg, GNPTXFSIZ)); dwc2_hsotg_init_fifo(hsotg); /* keep other bits untouched (so e.g. forced modes are not lost) */ - usbcfg = dwc2_readl(hsotg->regs + GUSBCFG); + usbcfg = dwc2_readl(hsotg, GUSBCFG); usbcfg &= ~(GUSBCFG_TOUTCAL_MASK | GUSBCFG_PHYIF16 | GUSBCFG_SRPCAP | GUSBCFG_HNPCAP | GUSBCFG_USBTRDTIM_MASK); @@ -4242,10 +4232,10 @@ static void dwc2_hsotg_init(struct dwc2_hsotg *hsotg) trdtim = (hsotg->phyif == GUSBCFG_PHYIF8) ? 9 : 5; usbcfg |= hsotg->phyif | GUSBCFG_TOUTCAL(7) | (trdtim << GUSBCFG_USBTRDTIM_SHIFT); - dwc2_writel(usbcfg, hsotg->regs + GUSBCFG); + dwc2_writel(hsotg, usbcfg, GUSBCFG); if (using_dma(hsotg)) - dwc2_set_bit(hsotg->regs + GAHBCFG, GAHBCFG_DMA_EN); + dwc2_set_bit(hsotg, GAHBCFG, GAHBCFG_DMA_EN); } /** @@ -4535,9 +4525,9 @@ static void dwc2_hsotg_initep(struct dwc2_hsotg *hsotg, u32 next = DXEPCTL_NEXTEP((epnum + 1) % 15); if (dir_in) - dwc2_writel(next, hsotg->regs + DIEPCTL(epnum)); + dwc2_writel(hsotg, next, DIEPCTL(epnum)); else - dwc2_writel(next, hsotg->regs + DOEPCTL(epnum)); + dwc2_writel(hsotg, next, DOEPCTL(epnum)); } } @@ -4606,24 +4596,23 @@ static void dwc2_hsotg_dump(struct dwc2_hsotg *hsotg) { #ifdef DEBUG struct device *dev = hsotg->dev; - void __iomem *regs = hsotg->regs; u32 val; int idx; dev_info(dev, "DCFG=0x%08x, DCTL=0x%08x, DIEPMSK=%08x\n", - dwc2_readl(regs + DCFG), dwc2_readl(regs + DCTL), - dwc2_readl(regs + DIEPMSK)); + dwc2_readl(hsotg, DCFG), dwc2_readl(hsotg, DCTL), + dwc2_readl(hsotg, DIEPMSK)); dev_info(dev, "GAHBCFG=0x%08x, GHWCFG1=0x%08x\n", - dwc2_readl(regs + GAHBCFG), dwc2_readl(regs + GHWCFG1)); + dwc2_readl(hsotg, GAHBCFG), dwc2_readl(hsotg, GHWCFG1)); dev_info(dev, "GRXFSIZ=0x%08x, GNPTXFSIZ=0x%08x\n", - dwc2_readl(regs + GRXFSIZ), dwc2_readl(regs + GNPTXFSIZ)); + dwc2_readl(hsotg, GRXFSIZ), dwc2_readl(hsotg, GNPTXFSIZ)); /* show periodic fifo settings */ for (idx = 1; idx < hsotg->num_of_eps; idx++) { - val = dwc2_readl(regs + DPTXFSIZN(idx)); + val = dwc2_readl(hsotg, DPTXFSIZN(idx)); dev_info(dev, "DPTx[%d] FSize=%d, StAddr=0x%08x\n", idx, val >> FIFOSIZE_DEPTH_SHIFT, val & FIFOSIZE_STARTADDR_MASK); @@ -4632,20 +4621,20 @@ static void dwc2_hsotg_dump(struct dwc2_hsotg *hsotg) for (idx = 0; idx < hsotg->num_of_eps; idx++) { dev_info(dev, "ep%d-in: EPCTL=0x%08x, SIZ=0x%08x, DMA=0x%08x\n", idx, - dwc2_readl(regs + DIEPCTL(idx)), - dwc2_readl(regs + DIEPTSIZ(idx)), - dwc2_readl(regs + DIEPDMA(idx))); + dwc2_readl(hsotg, DIEPCTL(idx)), + dwc2_readl(hsotg, DIEPTSIZ(idx)), + dwc2_readl(hsotg, DIEPDMA(idx))); - val = dwc2_readl(regs + DOEPCTL(idx)); + val = dwc2_readl(hsotg, DOEPCTL(idx)); dev_info(dev, "ep%d-out: EPCTL=0x%08x, SIZ=0x%08x, DMA=0x%08x\n", - idx, dwc2_readl(regs + DOEPCTL(idx)), - dwc2_readl(regs + DOEPTSIZ(idx)), - dwc2_readl(regs + DOEPDMA(idx))); + idx, dwc2_readl(hsotg, DOEPCTL(idx)), + dwc2_readl(hsotg, DOEPTSIZ(idx)), + dwc2_readl(hsotg, DOEPDMA(idx))); } dev_info(dev, "DVBUSDIS=0x%08x, DVBUSPULSE=%08x\n", - dwc2_readl(regs + DVBUSDIS), dwc2_readl(regs + DVBUSPULSE)); + dwc2_readl(hsotg, DVBUSDIS), dwc2_readl(hsotg, DVBUSPULSE)); #endif } @@ -4739,9 +4728,11 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg) } ret = usb_add_gadget_udc(dev, &hsotg->gadget); - if (ret) + if (ret) { + dwc2_hsotg_ep_free_request(&hsotg->eps_out[0]->ep, + hsotg->ctrl_req); return ret; - + } dwc2_hsotg_dump(hsotg); return 0; @@ -4755,6 +4746,7 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg) int dwc2_hsotg_remove(struct dwc2_hsotg *hsotg) { usb_del_gadget_udc(&hsotg->gadget); + dwc2_hsotg_ep_free_request(&hsotg->eps_out[0]->ep, hsotg->ctrl_req); return 0; } @@ -4831,15 +4823,15 @@ int dwc2_backup_device_registers(struct dwc2_hsotg *hsotg) /* Backup dev regs */ dr = &hsotg->dr_backup; - dr->dcfg = dwc2_readl(hsotg->regs + DCFG); - dr->dctl = dwc2_readl(hsotg->regs + DCTL); - dr->daintmsk = dwc2_readl(hsotg->regs + DAINTMSK); - dr->diepmsk = dwc2_readl(hsotg->regs + DIEPMSK); - dr->doepmsk = dwc2_readl(hsotg->regs + DOEPMSK); + dr->dcfg = dwc2_readl(hsotg, DCFG); + dr->dctl = dwc2_readl(hsotg, DCTL); + dr->daintmsk = dwc2_readl(hsotg, DAINTMSK); + dr->diepmsk = dwc2_readl(hsotg, DIEPMSK); + dr->doepmsk = dwc2_readl(hsotg, DOEPMSK); for (i = 0; i < hsotg->num_of_eps; i++) { /* Backup IN EPs */ - dr->diepctl[i] = dwc2_readl(hsotg->regs + DIEPCTL(i)); + dr->diepctl[i] = dwc2_readl(hsotg, DIEPCTL(i)); /* Ensure DATA PID is correctly configured */ if (dr->diepctl[i] & DXEPCTL_DPID) @@ -4847,11 +4839,11 @@ int dwc2_backup_device_registers(struct dwc2_hsotg *hsotg) else dr->diepctl[i] |= DXEPCTL_SETD0PID; - dr->dieptsiz[i] = dwc2_readl(hsotg->regs + DIEPTSIZ(i)); - dr->diepdma[i] = dwc2_readl(hsotg->regs + DIEPDMA(i)); + dr->dieptsiz[i] = dwc2_readl(hsotg, DIEPTSIZ(i)); + dr->diepdma[i] = dwc2_readl(hsotg, DIEPDMA(i)); /* Backup OUT EPs */ - dr->doepctl[i] = dwc2_readl(hsotg->regs + DOEPCTL(i)); + dr->doepctl[i] = dwc2_readl(hsotg, DOEPCTL(i)); /* Ensure DATA PID is correctly configured */ if (dr->doepctl[i] & DXEPCTL_DPID) @@ -4859,9 +4851,9 @@ int dwc2_backup_device_registers(struct dwc2_hsotg *hsotg) else dr->doepctl[i] |= DXEPCTL_SETD0PID; - dr->doeptsiz[i] = dwc2_readl(hsotg->regs + DOEPTSIZ(i)); - dr->doepdma[i] = dwc2_readl(hsotg->regs + DOEPDMA(i)); - dr->dtxfsiz[i] = dwc2_readl(hsotg->regs + DPTXFSIZN(i)); + dr->doeptsiz[i] = dwc2_readl(hsotg, DOEPTSIZ(i)); + dr->doepdma[i] = dwc2_readl(hsotg, DOEPDMA(i)); + dr->dtxfsiz[i] = dwc2_readl(hsotg, DPTXFSIZN(i)); } dr->valid = true; return 0; @@ -4894,17 +4886,17 @@ int dwc2_restore_device_registers(struct dwc2_hsotg *hsotg, int remote_wakeup) dr->valid = false; if (!remote_wakeup) - dwc2_writel(dr->dctl, hsotg->regs + DCTL); + dwc2_writel(hsotg, dr->dctl, DCTL); - dwc2_writel(dr->daintmsk, hsotg->regs + DAINTMSK); - dwc2_writel(dr->diepmsk, hsotg->regs + DIEPMSK); - dwc2_writel(dr->doepmsk, hsotg->regs + DOEPMSK); + dwc2_writel(hsotg, dr->daintmsk, DAINTMSK); + dwc2_writel(hsotg, dr->diepmsk, DIEPMSK); + dwc2_writel(hsotg, dr->doepmsk, DOEPMSK); for (i = 0; i < hsotg->num_of_eps; i++) { /* Restore IN EPs */ - dwc2_writel(dr->dieptsiz[i], hsotg->regs + DIEPTSIZ(i)); - dwc2_writel(dr->diepdma[i], hsotg->regs + DIEPDMA(i)); - dwc2_writel(dr->doeptsiz[i], hsotg->regs + DOEPTSIZ(i)); + dwc2_writel(hsotg, dr->dieptsiz[i], DIEPTSIZ(i)); + dwc2_writel(hsotg, dr->diepdma[i], DIEPDMA(i)); + dwc2_writel(hsotg, dr->doeptsiz[i], DOEPTSIZ(i)); /** WA for enabled EPx's IN in DDMA mode. On entering to * hibernation wrong value read and saved from DIEPDMAx, * as result BNA interrupt asserted on hibernation exit @@ -4913,10 +4905,10 @@ int dwc2_restore_device_registers(struct dwc2_hsotg *hsotg, int remote_wakeup) if (hsotg->params.g_dma_desc && (dr->diepctl[i] & DXEPCTL_EPENA)) dr->diepdma[i] = hsotg->eps_in[i]->desc_list_dma; - dwc2_writel(dr->dtxfsiz[i], hsotg->regs + DPTXFSIZN(i)); - dwc2_writel(dr->diepctl[i], hsotg->regs + DIEPCTL(i)); + dwc2_writel(hsotg, dr->dtxfsiz[i], DPTXFSIZN(i)); + dwc2_writel(hsotg, dr->diepctl[i], DIEPCTL(i)); /* Restore OUT EPs */ - dwc2_writel(dr->doeptsiz[i], hsotg->regs + DOEPTSIZ(i)); + dwc2_writel(hsotg, dr->doeptsiz[i], DOEPTSIZ(i)); /* WA for enabled EPx's OUT in DDMA mode. On entering to * hibernation wrong value read and saved from DOEPDMAx, * as result BNA interrupt asserted on hibernation exit @@ -4925,8 +4917,8 @@ int dwc2_restore_device_registers(struct dwc2_hsotg *hsotg, int remote_wakeup) if (hsotg->params.g_dma_desc && (dr->doepctl[i] & DXEPCTL_EPENA)) dr->doepdma[i] = hsotg->eps_out[i]->desc_list_dma; - dwc2_writel(dr->doepdma[i], hsotg->regs + DOEPDMA(i)); - dwc2_writel(dr->doepctl[i], hsotg->regs + DOEPCTL(i)); + dwc2_writel(hsotg, dr->doepdma[i], DOEPDMA(i)); + dwc2_writel(hsotg, dr->doepctl[i], DOEPCTL(i)); } return 0; @@ -4950,9 +4942,8 @@ void dwc2_gadget_init_lpm(struct dwc2_hsotg *hsotg) val |= hsotg->params.lpm_clock_gating ? GLPMCFG_ENBLSLPM : 0; val |= hsotg->params.hird_threshold << GLPMCFG_HIRD_THRES_SHIFT; val |= hsotg->params.besl ? GLPMCFG_ENBESL : 0; - dwc2_writel(val, hsotg->regs + GLPMCFG); - dev_dbg(hsotg->dev, "GLPMCFG=0x%08x\n", dwc2_readl(hsotg->regs - + GLPMCFG)); + dwc2_writel(hsotg, val, GLPMCFG); + dev_dbg(hsotg->dev, "GLPMCFG=0x%08x\n", dwc2_readl(hsotg, GLPMCFG)); } /** @@ -4985,40 +4976,40 @@ int dwc2_gadget_enter_hibernation(struct dwc2_hsotg *hsotg) gpwrdn = GPWRDN_PWRDNRSTN; gpwrdn |= GPWRDN_PMUACTV; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(10); /* Set flag to indicate that we are in hibernation */ hsotg->hibernated = 1; /* Enable interrupts from wake up logic */ - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn |= GPWRDN_PMUINTSEL; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(10); /* Unmask device mode interrupts in GPWRDN */ - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn |= GPWRDN_RST_DET_MSK; gpwrdn |= GPWRDN_LNSTSCHG_MSK; gpwrdn |= GPWRDN_STS_CHGINT_MSK; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(10); /* Enable Power Down Clamp */ - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn |= GPWRDN_PWRDNCLMP; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(10); /* Switch off VDD */ - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn |= GPWRDN_PWRDNSWTCH; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(10); /* Save gpwrdn register for further usage if stschng interrupt */ - hsotg->gr_backup.gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + hsotg->gr_backup.gpwrdn = dwc2_readl(hsotg, GPWRDN); dev_dbg(hsotg->dev, "Hibernation completed\n"); return ret; @@ -5060,46 +5051,46 @@ int dwc2_gadget_exit_hibernation(struct dwc2_hsotg *hsotg, if (!reset) { /* Clear all pending interupts */ - dwc2_writel(0xffffffff, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, 0xffffffff, GINTSTS); } /* De-assert Restore */ - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn &= ~GPWRDN_RESTORE; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(10); if (!rem_wakeup) { - pcgcctl = dwc2_readl(hsotg->regs + PCGCTL); + pcgcctl = dwc2_readl(hsotg, PCGCTL); pcgcctl &= ~PCGCTL_RSTPDWNMODULE; - dwc2_writel(pcgcctl, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, pcgcctl, PCGCTL); } /* Restore GUSBCFG, DCFG and DCTL */ - dwc2_writel(gr->gusbcfg, hsotg->regs + GUSBCFG); - dwc2_writel(dr->dcfg, hsotg->regs + DCFG); - dwc2_writel(dr->dctl, hsotg->regs + DCTL); + dwc2_writel(hsotg, gr->gusbcfg, GUSBCFG); + dwc2_writel(hsotg, dr->dcfg, DCFG); + dwc2_writel(hsotg, dr->dctl, DCTL); /* De-assert Wakeup Logic */ - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn &= ~GPWRDN_PMUACTV; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); if (rem_wakeup) { udelay(10); /* Start Remote Wakeup Signaling */ - dwc2_writel(dr->dctl | DCTL_RMTWKUPSIG, hsotg->regs + DCTL); + dwc2_writel(hsotg, dr->dctl | DCTL_RMTWKUPSIG, DCTL); } else { udelay(50); /* Set Device programming done bit */ - dctl = dwc2_readl(hsotg->regs + DCTL); + dctl = dwc2_readl(hsotg, DCTL); dctl |= DCTL_PWRONPRGDONE; - dwc2_writel(dctl, hsotg->regs + DCTL); + dwc2_writel(hsotg, dctl, DCTL); } /* Wait for interrupts which must be cleared */ mdelay(2); /* Clear all pending interupts */ - dwc2_writel(0xffffffff, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, 0xffffffff, GINTSTS); /* Restore global registers */ ret = dwc2_restore_global_registers(hsotg); @@ -5119,9 +5110,9 @@ int dwc2_gadget_exit_hibernation(struct dwc2_hsotg *hsotg, if (rem_wakeup) { mdelay(10); - dctl = dwc2_readl(hsotg->regs + DCTL); + dctl = dwc2_readl(hsotg, DCTL); dctl &= ~DCTL_RMTWKUPSIG; - dwc2_writel(dctl, hsotg->regs + DCTL); + dwc2_writel(hsotg, dctl, DCTL); } hsotg->hibernated = 0; diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index edaf0b6af4f0..2bd6e6bfc241 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -75,10 +75,10 @@ static void dwc2_enable_common_interrupts(struct dwc2_hsotg *hsotg) u32 intmsk; /* Clear any pending OTG Interrupts */ - dwc2_writel(0xffffffff, hsotg->regs + GOTGINT); + dwc2_writel(hsotg, 0xffffffff, GOTGINT); /* Clear any pending interrupts */ - dwc2_writel(0xffffffff, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, 0xffffffff, GINTSTS); /* Enable the interrupts in the GINTMSK */ intmsk = GINTSTS_MODEMIS | GINTSTS_OTGINT; @@ -94,7 +94,7 @@ static void dwc2_enable_common_interrupts(struct dwc2_hsotg *hsotg) if (dwc2_is_device_mode(hsotg) && hsotg->params.lpm) intmsk |= GINTSTS_LPMTRANRCVD; - dwc2_writel(intmsk, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, intmsk, GINTMSK); } /* @@ -117,10 +117,10 @@ static void dwc2_init_fs_ls_pclk_sel(struct dwc2_hsotg *hsotg) } dev_dbg(hsotg->dev, "Initializing HCFG.FSLSPClkSel to %08x\n", val); - hcfg = dwc2_readl(hsotg->regs + HCFG); + hcfg = dwc2_readl(hsotg, HCFG); hcfg &= ~HCFG_FSLSPCLKSEL_MASK; hcfg |= val << HCFG_FSLSPCLKSEL_SHIFT; - dwc2_writel(hcfg, hsotg->regs + HCFG); + dwc2_writel(hsotg, hcfg, HCFG); } static int dwc2_fs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy) @@ -135,10 +135,10 @@ static int dwc2_fs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy) if (select_phy) { dev_dbg(hsotg->dev, "FS PHY selected\n"); - usbcfg = dwc2_readl(hsotg->regs + GUSBCFG); + usbcfg = dwc2_readl(hsotg, GUSBCFG); if (!(usbcfg & GUSBCFG_PHYSEL)) { usbcfg |= GUSBCFG_PHYSEL; - dwc2_writel(usbcfg, hsotg->regs + GUSBCFG); + dwc2_writel(hsotg, usbcfg, GUSBCFG); /* Reset after a PHY select */ retval = dwc2_core_reset(hsotg, false); @@ -151,7 +151,7 @@ static int dwc2_fs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy) } if (hsotg->params.activate_stm_fs_transceiver) { - ggpio = dwc2_readl(hsotg->regs + GGPIO); + ggpio = dwc2_readl(hsotg, GGPIO); if (!(ggpio & GGPIO_STM32_OTG_GCCFG_PWRDWN)) { dev_dbg(hsotg->dev, "Activating transceiver\n"); /* @@ -159,7 +159,7 @@ static int dwc2_fs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy) * core configuration register. */ ggpio |= GGPIO_STM32_OTG_GCCFG_PWRDWN; - dwc2_writel(ggpio, hsotg->regs + GGPIO); + dwc2_writel(hsotg, ggpio, GGPIO); } } } @@ -176,18 +176,18 @@ static int dwc2_fs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy) dev_dbg(hsotg->dev, "FS PHY enabling I2C\n"); /* Program GUSBCFG.OtgUtmiFsSel to I2C */ - usbcfg = dwc2_readl(hsotg->regs + GUSBCFG); + usbcfg = dwc2_readl(hsotg, GUSBCFG); usbcfg |= GUSBCFG_OTG_UTMI_FS_SEL; - dwc2_writel(usbcfg, hsotg->regs + GUSBCFG); + dwc2_writel(hsotg, usbcfg, GUSBCFG); /* Program GI2CCTL.I2CEn */ - i2cctl = dwc2_readl(hsotg->regs + GI2CCTL); + i2cctl = dwc2_readl(hsotg, GI2CCTL); i2cctl &= ~GI2CCTL_I2CDEVADDR_MASK; i2cctl |= 1 << GI2CCTL_I2CDEVADDR_SHIFT; i2cctl &= ~GI2CCTL_I2CEN; - dwc2_writel(i2cctl, hsotg->regs + GI2CCTL); + dwc2_writel(hsotg, i2cctl, GI2CCTL); i2cctl |= GI2CCTL_I2CEN; - dwc2_writel(i2cctl, hsotg->regs + GI2CCTL); + dwc2_writel(hsotg, i2cctl, GI2CCTL); } return retval; @@ -201,7 +201,7 @@ static int dwc2_hs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy) if (!select_phy) return 0; - usbcfg = dwc2_readl(hsotg->regs + GUSBCFG); + usbcfg = dwc2_readl(hsotg, GUSBCFG); usbcfg_old = usbcfg; /* @@ -236,7 +236,7 @@ static int dwc2_hs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy) } if (usbcfg != usbcfg_old) { - dwc2_writel(usbcfg, hsotg->regs + GUSBCFG); + dwc2_writel(hsotg, usbcfg, GUSBCFG); /* Reset after setting the PHY parameters */ retval = dwc2_core_reset(hsotg, false); @@ -273,15 +273,15 @@ static int dwc2_phy_init(struct dwc2_hsotg *hsotg, bool select_phy) hsotg->hw_params.fs_phy_type == GHWCFG2_FS_PHY_TYPE_DEDICATED && hsotg->params.ulpi_fs_ls) { dev_dbg(hsotg->dev, "Setting ULPI FSLS\n"); - usbcfg = dwc2_readl(hsotg->regs + GUSBCFG); + usbcfg = dwc2_readl(hsotg, GUSBCFG); usbcfg |= GUSBCFG_ULPI_FS_LS; usbcfg |= GUSBCFG_ULPI_CLK_SUSP_M; - dwc2_writel(usbcfg, hsotg->regs + GUSBCFG); + dwc2_writel(hsotg, usbcfg, GUSBCFG); } else { - usbcfg = dwc2_readl(hsotg->regs + GUSBCFG); + usbcfg = dwc2_readl(hsotg, GUSBCFG); usbcfg &= ~GUSBCFG_ULPI_FS_LS; usbcfg &= ~GUSBCFG_ULPI_CLK_SUSP_M; - dwc2_writel(usbcfg, hsotg->regs + GUSBCFG); + dwc2_writel(hsotg, usbcfg, GUSBCFG); } return retval; @@ -289,7 +289,7 @@ static int dwc2_phy_init(struct dwc2_hsotg *hsotg, bool select_phy) static int dwc2_gahbcfg_init(struct dwc2_hsotg *hsotg) { - u32 ahbcfg = dwc2_readl(hsotg->regs + GAHBCFG); + u32 ahbcfg = dwc2_readl(hsotg, GAHBCFG); switch (hsotg->hw_params.arch) { case GHWCFG2_EXT_DMA_ARCH: @@ -316,7 +316,7 @@ static int dwc2_gahbcfg_init(struct dwc2_hsotg *hsotg) else hsotg->params.dma_desc_enable = false; - dwc2_writel(ahbcfg, hsotg->regs + GAHBCFG); + dwc2_writel(hsotg, ahbcfg, GAHBCFG); return 0; } @@ -325,7 +325,7 @@ static void dwc2_gusbcfg_init(struct dwc2_hsotg *hsotg) { u32 usbcfg; - usbcfg = dwc2_readl(hsotg->regs + GUSBCFG); + usbcfg = dwc2_readl(hsotg, GUSBCFG); usbcfg &= ~(GUSBCFG_HNPCAP | GUSBCFG_SRPCAP); switch (hsotg->hw_params.op_mode) { @@ -353,7 +353,7 @@ static void dwc2_gusbcfg_init(struct dwc2_hsotg *hsotg) break; } - dwc2_writel(usbcfg, hsotg->regs + GUSBCFG); + dwc2_writel(hsotg, usbcfg, GUSBCFG); } static int dwc2_vbus_supply_init(struct dwc2_hsotg *hsotg) @@ -390,16 +390,16 @@ static void dwc2_enable_host_interrupts(struct dwc2_hsotg *hsotg) dev_dbg(hsotg->dev, "%s()\n", __func__); /* Disable all interrupts */ - dwc2_writel(0, hsotg->regs + GINTMSK); - dwc2_writel(0, hsotg->regs + HAINTMSK); + dwc2_writel(hsotg, 0, GINTMSK); + dwc2_writel(hsotg, 0, HAINTMSK); /* Enable the common interrupts */ dwc2_enable_common_interrupts(hsotg); /* Enable host mode interrupts without disturbing common interrupts */ - intmsk = dwc2_readl(hsotg->regs + GINTMSK); + intmsk = dwc2_readl(hsotg, GINTMSK); intmsk |= GINTSTS_DISCONNINT | GINTSTS_PRTINT | GINTSTS_HCHINT; - dwc2_writel(intmsk, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, intmsk, GINTMSK); } /** @@ -409,12 +409,12 @@ static void dwc2_enable_host_interrupts(struct dwc2_hsotg *hsotg) */ static void dwc2_disable_host_interrupts(struct dwc2_hsotg *hsotg) { - u32 intmsk = dwc2_readl(hsotg->regs + GINTMSK); + u32 intmsk = dwc2_readl(hsotg, GINTMSK); /* Disable host mode interrupts without disturbing common interrupts */ intmsk &= ~(GINTSTS_SOF | GINTSTS_PRTINT | GINTSTS_HCHINT | GINTSTS_PTXFEMP | GINTSTS_NPTXFEMP | GINTSTS_DISCONNINT); - dwc2_writel(intmsk, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, intmsk, GINTMSK); } /* @@ -494,37 +494,37 @@ static void dwc2_config_fifos(struct dwc2_hsotg *hsotg) dwc2_calculate_dynamic_fifo(hsotg); /* Rx FIFO */ - grxfsiz = dwc2_readl(hsotg->regs + GRXFSIZ); + grxfsiz = dwc2_readl(hsotg, GRXFSIZ); dev_dbg(hsotg->dev, "initial grxfsiz=%08x\n", grxfsiz); grxfsiz &= ~GRXFSIZ_DEPTH_MASK; grxfsiz |= params->host_rx_fifo_size << GRXFSIZ_DEPTH_SHIFT & GRXFSIZ_DEPTH_MASK; - dwc2_writel(grxfsiz, hsotg->regs + GRXFSIZ); + dwc2_writel(hsotg, grxfsiz, GRXFSIZ); dev_dbg(hsotg->dev, "new grxfsiz=%08x\n", - dwc2_readl(hsotg->regs + GRXFSIZ)); + dwc2_readl(hsotg, GRXFSIZ)); /* Non-periodic Tx FIFO */ dev_dbg(hsotg->dev, "initial gnptxfsiz=%08x\n", - dwc2_readl(hsotg->regs + GNPTXFSIZ)); + dwc2_readl(hsotg, GNPTXFSIZ)); nptxfsiz = params->host_nperio_tx_fifo_size << FIFOSIZE_DEPTH_SHIFT & FIFOSIZE_DEPTH_MASK; nptxfsiz |= params->host_rx_fifo_size << FIFOSIZE_STARTADDR_SHIFT & FIFOSIZE_STARTADDR_MASK; - dwc2_writel(nptxfsiz, hsotg->regs + GNPTXFSIZ); + dwc2_writel(hsotg, nptxfsiz, GNPTXFSIZ); dev_dbg(hsotg->dev, "new gnptxfsiz=%08x\n", - dwc2_readl(hsotg->regs + GNPTXFSIZ)); + dwc2_readl(hsotg, GNPTXFSIZ)); /* Periodic Tx FIFO */ dev_dbg(hsotg->dev, "initial hptxfsiz=%08x\n", - dwc2_readl(hsotg->regs + HPTXFSIZ)); + dwc2_readl(hsotg, HPTXFSIZ)); hptxfsiz = params->host_perio_tx_fifo_size << FIFOSIZE_DEPTH_SHIFT & FIFOSIZE_DEPTH_MASK; hptxfsiz |= (params->host_rx_fifo_size + params->host_nperio_tx_fifo_size) << FIFOSIZE_STARTADDR_SHIFT & FIFOSIZE_STARTADDR_MASK; - dwc2_writel(hptxfsiz, hsotg->regs + HPTXFSIZ); + dwc2_writel(hsotg, hptxfsiz, HPTXFSIZ); dev_dbg(hsotg->dev, "new hptxfsiz=%08x\n", - dwc2_readl(hsotg->regs + HPTXFSIZ)); + dwc2_readl(hsotg, HPTXFSIZ)); if (hsotg->params.en_multiple_tx_fifo && hsotg->hw_params.snpsid >= DWC2_CORE_REV_2_91a) { @@ -533,14 +533,14 @@ static void dwc2_config_fifos(struct dwc2_hsotg *hsotg) * Global DFIFOCFG calculation for Host mode - * include RxFIFO, NPTXFIFO and HPTXFIFO */ - dfifocfg = dwc2_readl(hsotg->regs + GDFIFOCFG); + dfifocfg = dwc2_readl(hsotg, GDFIFOCFG); dfifocfg &= ~GDFIFOCFG_EPINFOBASE_MASK; dfifocfg |= (params->host_rx_fifo_size + params->host_nperio_tx_fifo_size + params->host_perio_tx_fifo_size) << GDFIFOCFG_EPINFOBASE_SHIFT & GDFIFOCFG_EPINFOBASE_MASK; - dwc2_writel(dfifocfg, hsotg->regs + GDFIFOCFG); + dwc2_writel(hsotg, dfifocfg, GDFIFOCFG); } } @@ -560,8 +560,8 @@ u32 dwc2_calc_frame_interval(struct dwc2_hsotg *hsotg) u32 hprt0; int clock = 60; /* default value */ - usbcfg = dwc2_readl(hsotg->regs + GUSBCFG); - hprt0 = dwc2_readl(hsotg->regs + HPRT0); + usbcfg = dwc2_readl(hsotg, GUSBCFG); + hprt0 = dwc2_readl(hsotg, HPRT0); if (!(usbcfg & GUSBCFG_PHYSEL) && (usbcfg & GUSBCFG_ULPI_UTMI_SEL) && !(usbcfg & GUSBCFG_PHYIF16)) @@ -603,7 +603,6 @@ u32 dwc2_calc_frame_interval(struct dwc2_hsotg *hsotg) */ void dwc2_read_packet(struct dwc2_hsotg *hsotg, u8 *dest, u16 bytes) { - u32 __iomem *fifo = hsotg->regs + HCFIFO(0); u32 *data_buf = (u32 *)dest; int word_count = (bytes + 3) / 4; int i; @@ -617,7 +616,7 @@ void dwc2_read_packet(struct dwc2_hsotg *hsotg, u8 *dest, u16 bytes) dev_vdbg(hsotg->dev, "%s(%p,%p,%d)\n", __func__, hsotg, dest, bytes); for (i = 0; i < word_count; i++, data_buf++) - *data_buf = dwc2_readl(fifo); + *data_buf = dwc2_readl(hsotg, HCFIFO(0)); } /** @@ -646,10 +645,10 @@ static void dwc2_dump_channel_info(struct dwc2_hsotg *hsotg, if (!chan) return; - hcchar = dwc2_readl(hsotg->regs + HCCHAR(chan->hc_num)); - hcsplt = dwc2_readl(hsotg->regs + HCSPLT(chan->hc_num)); - hctsiz = dwc2_readl(hsotg->regs + HCTSIZ(chan->hc_num)); - hc_dma = dwc2_readl(hsotg->regs + HCDMA(chan->hc_num)); + hcchar = dwc2_readl(hsotg, HCCHAR(chan->hc_num)); + hcsplt = dwc2_readl(hsotg, HCSPLT(chan->hc_num)); + hctsiz = dwc2_readl(hsotg, HCTSIZ(chan->hc_num)); + hc_dma = dwc2_readl(hsotg, HCDMA(chan->hc_num)); dev_dbg(hsotg->dev, " Assigned to channel %p:\n", chan); dev_dbg(hsotg->dev, " hcchar 0x%08x, hcsplt 0x%08x\n", @@ -797,7 +796,7 @@ static void dwc2_hc_enable_slave_ints(struct dwc2_hsotg *hsotg, break; } - dwc2_writel(hcintmsk, hsotg->regs + HCINTMSK(chan->hc_num)); + dwc2_writel(hsotg, hcintmsk, HCINTMSK(chan->hc_num)); if (dbg_hc(chan)) dev_vdbg(hsotg->dev, "set HCINTMSK to %08x\n", hcintmsk); } @@ -834,7 +833,7 @@ static void dwc2_hc_enable_dma_ints(struct dwc2_hsotg *hsotg, } } - dwc2_writel(hcintmsk, hsotg->regs + HCINTMSK(chan->hc_num)); + dwc2_writel(hsotg, hcintmsk, HCINTMSK(chan->hc_num)); if (dbg_hc(chan)) dev_vdbg(hsotg->dev, "set HCINTMSK to %08x\n", hcintmsk); } @@ -855,16 +854,16 @@ static void dwc2_hc_enable_ints(struct dwc2_hsotg *hsotg, } /* Enable the top level host channel interrupt */ - intmsk = dwc2_readl(hsotg->regs + HAINTMSK); + intmsk = dwc2_readl(hsotg, HAINTMSK); intmsk |= 1 << chan->hc_num; - dwc2_writel(intmsk, hsotg->regs + HAINTMSK); + dwc2_writel(hsotg, intmsk, HAINTMSK); if (dbg_hc(chan)) dev_vdbg(hsotg->dev, "set HAINTMSK to %08x\n", intmsk); /* Make sure host channel interrupts are enabled */ - intmsk = dwc2_readl(hsotg->regs + GINTMSK); + intmsk = dwc2_readl(hsotg, GINTMSK); intmsk |= GINTSTS_HCHINT; - dwc2_writel(intmsk, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, intmsk, GINTMSK); if (dbg_hc(chan)) dev_vdbg(hsotg->dev, "set GINTMSK to %08x\n", intmsk); } @@ -893,7 +892,7 @@ static void dwc2_hc_init(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan) /* Clear old interrupt conditions for this host channel */ hcintmsk = 0xffffffff; hcintmsk &= ~HCINTMSK_RESERVED14_31; - dwc2_writel(hcintmsk, hsotg->regs + HCINT(hc_num)); + dwc2_writel(hsotg, hcintmsk, HCINT(hc_num)); /* Enable channel interrupts required for this transfer */ dwc2_hc_enable_ints(hsotg, chan); @@ -910,7 +909,7 @@ static void dwc2_hc_init(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan) hcchar |= HCCHAR_LSPDDEV; hcchar |= chan->ep_type << HCCHAR_EPTYPE_SHIFT & HCCHAR_EPTYPE_MASK; hcchar |= chan->max_packet << HCCHAR_MPS_SHIFT & HCCHAR_MPS_MASK; - dwc2_writel(hcchar, hsotg->regs + HCCHAR(hc_num)); + dwc2_writel(hsotg, hcchar, HCCHAR(hc_num)); if (dbg_hc(chan)) { dev_vdbg(hsotg->dev, "set HCCHAR(%d) to %08x\n", hc_num, hcchar); @@ -964,7 +963,7 @@ static void dwc2_hc_init(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan) } } - dwc2_writel(hcsplt, hsotg->regs + HCSPLT(hc_num)); + dwc2_writel(hsotg, hcsplt, HCSPLT(hc_num)); } /** @@ -1034,14 +1033,14 @@ void dwc2_hc_halt(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan, u32 hcintmsk = HCINTMSK_CHHLTD; dev_vdbg(hsotg->dev, "dequeue/error\n"); - dwc2_writel(hcintmsk, hsotg->regs + HCINTMSK(chan->hc_num)); + dwc2_writel(hsotg, hcintmsk, HCINTMSK(chan->hc_num)); /* * Make sure no other interrupts besides halt are currently * pending. Handling another interrupt could cause a crash due * to the QTD and QH state. */ - dwc2_writel(~hcintmsk, hsotg->regs + HCINT(chan->hc_num)); + dwc2_writel(hsotg, ~hcintmsk, HCINT(chan->hc_num)); /* * Make sure the halt status is set to URB_DEQUEUE or AHB_ERR @@ -1050,7 +1049,7 @@ void dwc2_hc_halt(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan, */ chan->halt_status = halt_status; - hcchar = dwc2_readl(hsotg->regs + HCCHAR(chan->hc_num)); + hcchar = dwc2_readl(hsotg, HCCHAR(chan->hc_num)); if (!(hcchar & HCCHAR_CHENA)) { /* * The channel is either already halted or it hasn't @@ -1078,7 +1077,7 @@ void dwc2_hc_halt(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan, return; } - hcchar = dwc2_readl(hsotg->regs + HCCHAR(chan->hc_num)); + hcchar = dwc2_readl(hsotg, HCCHAR(chan->hc_num)); /* No need to set the bit in DDMA for disabling the channel */ /* TODO check it everywhere channel is disabled */ @@ -1101,7 +1100,7 @@ void dwc2_hc_halt(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan, if (chan->ep_type == USB_ENDPOINT_XFER_CONTROL || chan->ep_type == USB_ENDPOINT_XFER_BULK) { dev_vdbg(hsotg->dev, "control/bulk\n"); - nptxsts = dwc2_readl(hsotg->regs + GNPTXSTS); + nptxsts = dwc2_readl(hsotg, GNPTXSTS); if ((nptxsts & TXSTS_QSPCAVAIL_MASK) == 0) { dev_vdbg(hsotg->dev, "Disabling channel\n"); hcchar &= ~HCCHAR_CHENA; @@ -1109,7 +1108,7 @@ void dwc2_hc_halt(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan, } else { if (dbg_perio()) dev_vdbg(hsotg->dev, "isoc/intr\n"); - hptxsts = dwc2_readl(hsotg->regs + HPTXSTS); + hptxsts = dwc2_readl(hsotg, HPTXSTS); if ((hptxsts & TXSTS_QSPCAVAIL_MASK) == 0 || hsotg->queuing_high_bandwidth) { if (dbg_perio()) @@ -1122,7 +1121,7 @@ void dwc2_hc_halt(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan, dev_vdbg(hsotg->dev, "DMA enabled\n"); } - dwc2_writel(hcchar, hsotg->regs + HCCHAR(chan->hc_num)); + dwc2_writel(hsotg, hcchar, HCCHAR(chan->hc_num)); chan->halt_status = halt_status; if (hcchar & HCCHAR_CHENA) { @@ -1171,10 +1170,10 @@ void dwc2_hc_cleanup(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan) * Clear channel interrupt enables and any unhandled channel interrupt * conditions */ - dwc2_writel(0, hsotg->regs + HCINTMSK(chan->hc_num)); + dwc2_writel(hsotg, 0, HCINTMSK(chan->hc_num)); hcintmsk = 0xffffffff; hcintmsk &= ~HCINTMSK_RESERVED14_31; - dwc2_writel(hcintmsk, hsotg->regs + HCINT(chan->hc_num)); + dwc2_writel(hsotg, hcintmsk, HCINT(chan->hc_num)); } /** @@ -1228,7 +1227,7 @@ static void dwc2_hc_set_even_odd_frame(struct dwc2_hsotg *hsotg, !chan->do_split) ? chan->speed : USB_SPEED_HIGH; /* See how many bytes are in the periodic FIFO right now */ - fifo_space = (dwc2_readl(hsotg->regs + HPTXSTS) & + fifo_space = (dwc2_readl(hsotg, HPTXSTS) & TXSTS_FSPCAVAIL_MASK) >> TXSTS_FSPCAVAIL_SHIFT; bytes_in_fifo = sizeof(u32) * (hsotg->params.host_perio_tx_fifo_size - @@ -1348,13 +1347,13 @@ static void dwc2_hc_write_packet(struct dwc2_hsotg *hsotg, if (((unsigned long)data_buf & 0x3) == 0) { /* xfer_buf is DWORD aligned */ for (i = 0; i < dword_count; i++, data_buf++) - dwc2_writel(*data_buf, data_fifo); + dwc2_writel(hsotg, *data_buf, HCFIFO(chan->hc_num)); } else { /* xfer_buf is not DWORD aligned */ for (i = 0; i < dword_count; i++, data_buf++) { u32 data = data_buf[0] | data_buf[1] << 8 | data_buf[2] << 16 | data_buf[3] << 24; - dwc2_writel(data, data_fifo); + dwc2_writel(hsotg, data, HCFIFO(chan->hc_num)); } } @@ -1383,12 +1382,12 @@ static void dwc2_hc_do_ping(struct dwc2_hsotg *hsotg, hctsiz = TSIZ_DOPNG; hctsiz |= 1 << TSIZ_PKTCNT_SHIFT; - dwc2_writel(hctsiz, hsotg->regs + HCTSIZ(chan->hc_num)); + dwc2_writel(hsotg, hctsiz, HCTSIZ(chan->hc_num)); - hcchar = dwc2_readl(hsotg->regs + HCCHAR(chan->hc_num)); + hcchar = dwc2_readl(hsotg, HCCHAR(chan->hc_num)); hcchar |= HCCHAR_CHENA; hcchar &= ~HCCHAR_CHDIS; - dwc2_writel(hcchar, hsotg->regs + HCCHAR(chan->hc_num)); + dwc2_writel(hsotg, hcchar, HCCHAR(chan->hc_num)); } /** @@ -1548,7 +1547,7 @@ static void dwc2_hc_start_transfer(struct dwc2_hsotg *hsotg, hctsiz |= num_packets << TSIZ_PKTCNT_SHIFT & TSIZ_PKTCNT_MASK; hctsiz |= chan->data_pid_start << TSIZ_SC_MC_PID_SHIFT & TSIZ_SC_MC_PID_MASK; - dwc2_writel(hctsiz, hsotg->regs + HCTSIZ(chan->hc_num)); + dwc2_writel(hsotg, hctsiz, HCTSIZ(chan->hc_num)); if (dbg_hc(chan)) { dev_vdbg(hsotg->dev, "Wrote %08x to HCTSIZ(%d)\n", hctsiz, chan->hc_num); @@ -1567,22 +1566,31 @@ static void dwc2_hc_start_transfer(struct dwc2_hsotg *hsotg, } if (hsotg->params.host_dma) { - dwc2_writel((u32)chan->xfer_dma, - hsotg->regs + HCDMA(chan->hc_num)); + dma_addr_t dma_addr; + + if (chan->align_buf) { + if (dbg_hc(chan)) + dev_vdbg(hsotg->dev, "align_buf\n"); + dma_addr = chan->align_buf; + } else { + dma_addr = chan->xfer_dma; + } + dwc2_writel(hsotg, (u32)dma_addr, HCDMA(chan->hc_num)); + if (dbg_hc(chan)) dev_vdbg(hsotg->dev, "Wrote %08lx to HCDMA(%d)\n", - (unsigned long)chan->xfer_dma, chan->hc_num); + (unsigned long)dma_addr, chan->hc_num); } /* Start the split */ if (chan->do_split) { - u32 hcsplt = dwc2_readl(hsotg->regs + HCSPLT(chan->hc_num)); + u32 hcsplt = dwc2_readl(hsotg, HCSPLT(chan->hc_num)); hcsplt |= HCSPLT_SPLTENA; - dwc2_writel(hcsplt, hsotg->regs + HCSPLT(chan->hc_num)); + dwc2_writel(hsotg, hcsplt, HCSPLT(chan->hc_num)); } - hcchar = dwc2_readl(hsotg->regs + HCCHAR(chan->hc_num)); + hcchar = dwc2_readl(hsotg, HCCHAR(chan->hc_num)); hcchar &= ~HCCHAR_MULTICNT_MASK; hcchar |= (ec_mc << HCCHAR_MULTICNT_SHIFT) & HCCHAR_MULTICNT_MASK; dwc2_hc_set_even_odd_frame(hsotg, chan, &hcchar); @@ -1601,7 +1609,7 @@ static void dwc2_hc_start_transfer(struct dwc2_hsotg *hsotg, (hcchar & HCCHAR_MULTICNT_MASK) >> HCCHAR_MULTICNT_SHIFT); - dwc2_writel(hcchar, hsotg->regs + HCCHAR(chan->hc_num)); + dwc2_writel(hsotg, hcchar, HCCHAR(chan->hc_num)); if (dbg_hc(chan)) dev_vdbg(hsotg->dev, "Wrote %08x to HCCHAR(%d)\n", hcchar, chan->hc_num); @@ -1659,18 +1667,18 @@ void dwc2_hc_start_transfer_ddma(struct dwc2_hsotg *hsotg, dev_vdbg(hsotg->dev, " NTD: %d\n", chan->ntd - 1); } - dwc2_writel(hctsiz, hsotg->regs + HCTSIZ(chan->hc_num)); + dwc2_writel(hsotg, hctsiz, HCTSIZ(chan->hc_num)); dma_sync_single_for_device(hsotg->dev, chan->desc_list_addr, chan->desc_list_sz, DMA_TO_DEVICE); - dwc2_writel(chan->desc_list_addr, hsotg->regs + HCDMA(chan->hc_num)); + dwc2_writel(hsotg, chan->desc_list_addr, HCDMA(chan->hc_num)); if (dbg_hc(chan)) dev_vdbg(hsotg->dev, "Wrote %pad to HCDMA(%d)\n", &chan->desc_list_addr, chan->hc_num); - hcchar = dwc2_readl(hsotg->regs + HCCHAR(chan->hc_num)); + hcchar = dwc2_readl(hsotg, HCCHAR(chan->hc_num)); hcchar &= ~HCCHAR_MULTICNT_MASK; hcchar |= chan->multi_count << HCCHAR_MULTICNT_SHIFT & HCCHAR_MULTICNT_MASK; @@ -1689,7 +1697,7 @@ void dwc2_hc_start_transfer_ddma(struct dwc2_hsotg *hsotg, (hcchar & HCCHAR_MULTICNT_MASK) >> HCCHAR_MULTICNT_SHIFT); - dwc2_writel(hcchar, hsotg->regs + HCCHAR(chan->hc_num)); + dwc2_writel(hsotg, hcchar, HCCHAR(chan->hc_num)); if (dbg_hc(chan)) dev_vdbg(hsotg->dev, "Wrote %08x to HCCHAR(%d)\n", hcchar, chan->hc_num); @@ -1746,7 +1754,7 @@ static int dwc2_hc_continue_transfer(struct dwc2_hsotg *hsotg, * transfer completes, the extra requests for the channel will * be flushed. */ - u32 hcchar = dwc2_readl(hsotg->regs + HCCHAR(chan->hc_num)); + u32 hcchar = dwc2_readl(hsotg, HCCHAR(chan->hc_num)); dwc2_hc_set_even_odd_frame(hsotg, chan, &hcchar); hcchar |= HCCHAR_CHENA; @@ -1754,7 +1762,7 @@ static int dwc2_hc_continue_transfer(struct dwc2_hsotg *hsotg, if (dbg_hc(chan)) dev_vdbg(hsotg->dev, " IN xfer: hcchar = 0x%08x\n", hcchar); - dwc2_writel(hcchar, hsotg->regs + HCCHAR(chan->hc_num)); + dwc2_writel(hsotg, hcchar, HCCHAR(chan->hc_num)); chan->requests++; return 1; } @@ -1764,7 +1772,7 @@ static int dwc2_hc_continue_transfer(struct dwc2_hsotg *hsotg, if (chan->xfer_count < chan->xfer_len) { if (chan->ep_type == USB_ENDPOINT_XFER_INT || chan->ep_type == USB_ENDPOINT_XFER_ISOC) { - u32 hcchar = dwc2_readl(hsotg->regs + + u32 hcchar = dwc2_readl(hsotg, HCCHAR(chan->hc_num)); dwc2_hc_set_even_odd_frame(hsotg, chan, @@ -1878,7 +1886,7 @@ void dwc2_hcd_start(struct dwc2_hsotg *hsotg) */ hprt0 = dwc2_read_hprt0(hsotg); hprt0 |= HPRT0_RST; - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); } queue_delayed_work(hsotg->wq_otg, &hsotg->start_work, @@ -1899,11 +1907,11 @@ static void dwc2_hcd_cleanup_channels(struct dwc2_hsotg *hsotg) channel = hsotg->hc_ptr_array[i]; if (!list_empty(&channel->hc_list_entry)) continue; - hcchar = dwc2_readl(hsotg->regs + HCCHAR(i)); + hcchar = dwc2_readl(hsotg, HCCHAR(i)); if (hcchar & HCCHAR_CHENA) { hcchar &= ~(HCCHAR_CHENA | HCCHAR_EPDIR); hcchar |= HCCHAR_CHDIS; - dwc2_writel(hcchar, hsotg->regs + HCCHAR(i)); + dwc2_writel(hsotg, hcchar, HCCHAR(i)); } } } @@ -1912,11 +1920,11 @@ static void dwc2_hcd_cleanup_channels(struct dwc2_hsotg *hsotg) channel = hsotg->hc_ptr_array[i]; if (!list_empty(&channel->hc_list_entry)) continue; - hcchar = dwc2_readl(hsotg->regs + HCCHAR(i)); + hcchar = dwc2_readl(hsotg, HCCHAR(i)); if (hcchar & HCCHAR_CHENA) { /* Halt the channel */ hcchar |= HCCHAR_CHDIS; - dwc2_writel(hcchar, hsotg->regs + HCCHAR(i)); + dwc2_writel(hsotg, hcchar, HCCHAR(i)); } dwc2_hc_cleanup(hsotg, channel); @@ -1976,11 +1984,11 @@ void dwc2_hcd_disconnect(struct dwc2_hsotg *hsotg, bool force) * interrupt mask and status bits and disabling subsequent host * channel interrupts. */ - intr = dwc2_readl(hsotg->regs + GINTMSK); + intr = dwc2_readl(hsotg, GINTMSK); intr &= ~(GINTSTS_NPTXFEMP | GINTSTS_PTXFEMP | GINTSTS_HCHINT); - dwc2_writel(intr, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, intr, GINTMSK); intr = GINTSTS_NPTXFEMP | GINTSTS_PTXFEMP | GINTSTS_HCHINT; - dwc2_writel(intr, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, intr, GINTSTS); /* * Turn off the vbus power only if the core has transitioned to device @@ -1990,7 +1998,7 @@ void dwc2_hcd_disconnect(struct dwc2_hsotg *hsotg, bool force) if (dwc2_is_device_mode(hsotg)) { if (hsotg->op_state != OTG_STATE_A_SUSPEND) { dev_dbg(hsotg->dev, "Disconnect: PortPower off\n"); - dwc2_writel(0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, 0, HPRT0); } dwc2_disable_host_interrupts(hsotg); @@ -2018,7 +2026,7 @@ void dwc2_hcd_disconnect(struct dwc2_hsotg *hsotg, bool force) * and won't get any future interrupts to handle the connect. */ if (!force) { - hprt0 = dwc2_readl(hsotg->regs + HPRT0); + hprt0 = dwc2_readl(hsotg, HPRT0); if (!(hprt0 & HPRT0_CONNDET) && (hprt0 & HPRT0_CONNSTS)) dwc2_hcd_connect(hsotg); } @@ -2062,7 +2070,7 @@ void dwc2_hcd_stop(struct dwc2_hsotg *hsotg) /* Turn off the vbus power */ dev_dbg(hsotg->dev, "PortPower off\n"); - dwc2_writel(0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, 0, HPRT0); } /* Caller must hold driver lock */ @@ -2086,7 +2094,7 @@ static int dwc2_hcd_urb_enqueue(struct dwc2_hsotg *hsotg, if ((dev_speed == USB_SPEED_LOW) && (hsotg->hw_params.fs_phy_type == GHWCFG2_FS_PHY_TYPE_DEDICATED) && (hsotg->hw_params.hs_phy_type == GHWCFG2_HS_PHY_TYPE_UTMI)) { - u32 hprt0 = dwc2_readl(hsotg->regs + HPRT0); + u32 hprt0 = dwc2_readl(hsotg, HPRT0); u32 prtspd = (hprt0 & HPRT0_SPD_MASK) >> HPRT0_SPD_SHIFT; if (prtspd == HPRT0_SPD_FULL_SPEED) @@ -2105,7 +2113,7 @@ static int dwc2_hcd_urb_enqueue(struct dwc2_hsotg *hsotg, return retval; } - intr_mask = dwc2_readl(hsotg->regs + GINTMSK); + intr_mask = dwc2_readl(hsotg, GINTMSK); if (!(intr_mask & GINTSTS_SOF)) { enum dwc2_transaction_type tr_type; @@ -2270,7 +2278,7 @@ int dwc2_core_init(struct dwc2_hsotg *hsotg, bool initial_setup) dev_dbg(hsotg->dev, "%s(%p)\n", __func__, hsotg); - usbcfg = dwc2_readl(hsotg->regs + GUSBCFG); + usbcfg = dwc2_readl(hsotg, GUSBCFG); /* Set ULPI External VBUS bit if needed */ usbcfg &= ~GUSBCFG_ULPI_EXT_VBUS_DRV; @@ -2282,7 +2290,7 @@ int dwc2_core_init(struct dwc2_hsotg *hsotg, bool initial_setup) if (hsotg->params.ts_dline) usbcfg |= GUSBCFG_TERMSELDLPULSE; - dwc2_writel(usbcfg, hsotg->regs + GUSBCFG); + dwc2_writel(hsotg, usbcfg, GUSBCFG); /* * Reset the Controller @@ -2316,9 +2324,9 @@ int dwc2_core_init(struct dwc2_hsotg *hsotg, bool initial_setup) dwc2_gusbcfg_init(hsotg); /* Program the GOTGCTL register */ - otgctl = dwc2_readl(hsotg->regs + GOTGCTL); + otgctl = dwc2_readl(hsotg, GOTGCTL); otgctl &= ~GOTGCTL_OTGVER; - dwc2_writel(otgctl, hsotg->regs + GOTGCTL); + dwc2_writel(hsotg, otgctl, GOTGCTL); /* Clear the SRP success bit for FS-I2c */ hsotg->srp_success = 0; @@ -2365,20 +2373,20 @@ static void dwc2_core_host_init(struct dwc2_hsotg *hsotg) * introduced by the PHY in generating the linestate condition * can vary from one PHY to another. */ - usbcfg = dwc2_readl(hsotg->regs + GUSBCFG); + usbcfg = dwc2_readl(hsotg, GUSBCFG); usbcfg |= GUSBCFG_TOUTCAL(7); - dwc2_writel(usbcfg, hsotg->regs + GUSBCFG); + dwc2_writel(hsotg, usbcfg, GUSBCFG); /* Restart the Phy Clock */ - dwc2_writel(0, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, 0, PCGCTL); /* Initialize Host Configuration Register */ dwc2_init_fs_ls_pclk_sel(hsotg); if (hsotg->params.speed == DWC2_SPEED_PARAM_FULL || hsotg->params.speed == DWC2_SPEED_PARAM_LOW) { - hcfg = dwc2_readl(hsotg->regs + HCFG); + hcfg = dwc2_readl(hsotg, HCFG); hcfg |= HCFG_FSLSSUPP; - dwc2_writel(hcfg, hsotg->regs + HCFG); + dwc2_writel(hsotg, hcfg, HCFG); } /* @@ -2387,9 +2395,9 @@ static void dwc2_core_host_init(struct dwc2_hsotg *hsotg) * and its value must not be changed during runtime. */ if (hsotg->params.reload_ctl) { - hfir = dwc2_readl(hsotg->regs + HFIR); + hfir = dwc2_readl(hsotg, HFIR); hfir |= HFIR_RLDCTRL; - dwc2_writel(hfir, hsotg->regs + HFIR); + dwc2_writel(hsotg, hfir, HFIR); } if (hsotg->params.dma_desc_enable) { @@ -2406,9 +2414,9 @@ static void dwc2_core_host_init(struct dwc2_hsotg *hsotg) "falling back to buffer DMA mode.\n"); hsotg->params.dma_desc_enable = false; } else { - hcfg = dwc2_readl(hsotg->regs + HCFG); + hcfg = dwc2_readl(hsotg, HCFG); hcfg |= HCFG_DESCDMA; - dwc2_writel(hcfg, hsotg->regs + HCFG); + dwc2_writel(hsotg, hcfg, HCFG); } } @@ -2417,18 +2425,18 @@ static void dwc2_core_host_init(struct dwc2_hsotg *hsotg) /* TODO - check this */ /* Clear Host Set HNP Enable in the OTG Control Register */ - otgctl = dwc2_readl(hsotg->regs + GOTGCTL); + otgctl = dwc2_readl(hsotg, GOTGCTL); otgctl &= ~GOTGCTL_HSTSETHNPEN; - dwc2_writel(otgctl, hsotg->regs + GOTGCTL); + dwc2_writel(hsotg, otgctl, GOTGCTL); /* Make sure the FIFOs are flushed */ dwc2_flush_tx_fifo(hsotg, 0x10 /* all TX FIFOs */); dwc2_flush_rx_fifo(hsotg); /* Clear Host Set HNP Enable in the OTG Control Register */ - otgctl = dwc2_readl(hsotg->regs + GOTGCTL); + otgctl = dwc2_readl(hsotg, GOTGCTL); otgctl &= ~GOTGCTL_HSTSETHNPEN; - dwc2_writel(otgctl, hsotg->regs + GOTGCTL); + dwc2_writel(hsotg, otgctl, GOTGCTL); if (!hsotg->params.dma_desc_enable) { int num_channels, i; @@ -2437,19 +2445,19 @@ static void dwc2_core_host_init(struct dwc2_hsotg *hsotg) /* Flush out any leftover queued requests */ num_channels = hsotg->params.host_channels; for (i = 0; i < num_channels; i++) { - hcchar = dwc2_readl(hsotg->regs + HCCHAR(i)); + hcchar = dwc2_readl(hsotg, HCCHAR(i)); hcchar &= ~HCCHAR_CHENA; hcchar |= HCCHAR_CHDIS; hcchar &= ~HCCHAR_EPDIR; - dwc2_writel(hcchar, hsotg->regs + HCCHAR(i)); + dwc2_writel(hsotg, hcchar, HCCHAR(i)); } /* Halt all channels to put them into a known state */ for (i = 0; i < num_channels; i++) { - hcchar = dwc2_readl(hsotg->regs + HCCHAR(i)); + hcchar = dwc2_readl(hsotg, HCCHAR(i)); hcchar |= HCCHAR_CHENA | HCCHAR_CHDIS; hcchar &= ~HCCHAR_EPDIR; - dwc2_writel(hcchar, hsotg->regs + HCCHAR(i)); + dwc2_writel(hsotg, hcchar, HCCHAR(i)); dev_dbg(hsotg->dev, "%s: Halt channel %d\n", __func__, i); @@ -2473,7 +2481,7 @@ static void dwc2_core_host_init(struct dwc2_hsotg *hsotg) !!(hprt0 & HPRT0_PWR)); if (!(hprt0 & HPRT0_PWR)) { hprt0 |= HPRT0_PWR; - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); } } @@ -2625,36 +2633,66 @@ static void dwc2_hc_init_xfer(struct dwc2_hsotg *hsotg, } } -#define DWC2_USB_DMA_ALIGN 4 +static int dwc2_alloc_split_dma_aligned_buf(struct dwc2_hsotg *hsotg, + struct dwc2_qh *qh, + struct dwc2_host_chan *chan) +{ + if (!hsotg->unaligned_cache || + chan->max_packet > DWC2_KMEM_UNALIGNED_BUF_SIZE) + return -ENOMEM; -struct dma_aligned_buffer { - void *kmalloc_ptr; - void *old_xfer_buffer; - u8 data[0]; -}; + if (!qh->dw_align_buf) { + qh->dw_align_buf = kmem_cache_alloc(hsotg->unaligned_cache, + GFP_ATOMIC | GFP_DMA); + if (!qh->dw_align_buf) + return -ENOMEM; + } + + qh->dw_align_buf_dma = dma_map_single(hsotg->dev, qh->dw_align_buf, + DWC2_KMEM_UNALIGNED_BUF_SIZE, + DMA_FROM_DEVICE); + + if (dma_mapping_error(hsotg->dev, qh->dw_align_buf_dma)) { + dev_err(hsotg->dev, "can't map align_buf\n"); + chan->align_buf = 0; + return -EINVAL; + } + + chan->align_buf = qh->dw_align_buf_dma; + return 0; +} + +#define DWC2_USB_DMA_ALIGN 4 static void dwc2_free_dma_aligned_buffer(struct urb *urb) { - struct dma_aligned_buffer *temp; + void *stored_xfer_buffer; + size_t length; if (!(urb->transfer_flags & URB_ALIGNED_TEMP_BUFFER)) return; - temp = container_of(urb->transfer_buffer, - struct dma_aligned_buffer, data); + /* Restore urb->transfer_buffer from the end of the allocated area */ + memcpy(&stored_xfer_buffer, urb->transfer_buffer + + urb->transfer_buffer_length, sizeof(urb->transfer_buffer)); - if (usb_urb_dir_in(urb)) - memcpy(temp->old_xfer_buffer, temp->data, - urb->transfer_buffer_length); - urb->transfer_buffer = temp->old_xfer_buffer; - kfree(temp->kmalloc_ptr); + if (usb_urb_dir_in(urb)) { + if (usb_pipeisoc(urb->pipe)) + length = urb->transfer_buffer_length; + else + length = urb->actual_length; + + memcpy(stored_xfer_buffer, urb->transfer_buffer, length); + } + kfree(urb->transfer_buffer); + urb->transfer_buffer = stored_xfer_buffer; urb->transfer_flags &= ~URB_ALIGNED_TEMP_BUFFER; } static int dwc2_alloc_dma_aligned_buffer(struct urb *urb, gfp_t mem_flags) { - struct dma_aligned_buffer *temp, *kmalloc_ptr; + void *kmalloc_ptr; size_t kmalloc_size; if (urb->num_sgs || urb->sg || @@ -2662,22 +2700,29 @@ static int dwc2_alloc_dma_aligned_buffer(struct urb *urb, gfp_t mem_flags) !((uintptr_t)urb->transfer_buffer & (DWC2_USB_DMA_ALIGN - 1))) return 0; - /* Allocate a buffer with enough padding for alignment */ + /* + * Allocate a buffer with enough padding for original transfer_buffer + * pointer. This allocation is guaranteed to be aligned properly for + * DMA + */ kmalloc_size = urb->transfer_buffer_length + - sizeof(struct dma_aligned_buffer) + DWC2_USB_DMA_ALIGN - 1; + sizeof(urb->transfer_buffer); kmalloc_ptr = kmalloc(kmalloc_size, mem_flags); if (!kmalloc_ptr) return -ENOMEM; - /* Position our struct dma_aligned_buffer such that data is aligned */ - temp = PTR_ALIGN(kmalloc_ptr + 1, DWC2_USB_DMA_ALIGN) - 1; - temp->kmalloc_ptr = kmalloc_ptr; - temp->old_xfer_buffer = urb->transfer_buffer; + /* + * Position value of original urb->transfer_buffer pointer to the end + * of allocation for later referencing + */ + memcpy(kmalloc_ptr + urb->transfer_buffer_length, + &urb->transfer_buffer, sizeof(urb->transfer_buffer)); + if (usb_urb_dir_out(urb)) - memcpy(temp->data, urb->transfer_buffer, + memcpy(kmalloc_ptr, urb->transfer_buffer, urb->transfer_buffer_length); - urb->transfer_buffer = temp->data; + urb->transfer_buffer = kmalloc_ptr; urb->transfer_flags |= URB_ALIGNED_TEMP_BUFFER; @@ -2802,6 +2847,32 @@ static int dwc2_assign_and_init_hc(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh) /* Set the transfer attributes */ dwc2_hc_init_xfer(hsotg, chan, qtd); + /* For non-dword aligned buffers */ + if (hsotg->params.host_dma && qh->do_split && + chan->ep_is_in && (chan->xfer_dma & 0x3)) { + dev_vdbg(hsotg->dev, "Non-aligned buffer\n"); + if (dwc2_alloc_split_dma_aligned_buf(hsotg, qh, chan)) { + dev_err(hsotg->dev, + "Failed to allocate memory to handle non-aligned buffer\n"); + /* Add channel back to free list */ + chan->align_buf = 0; + chan->multi_count = 0; + list_add_tail(&chan->hc_list_entry, + &hsotg->free_hc_list); + qtd->in_process = 0; + qh->channel = NULL; + return -ENOMEM; + } + } else { + /* + * We assume that DMA is always aligned in non-split + * case or split out case. Warn if not. + */ + WARN_ON_ONCE(hsotg->params.host_dma && + (chan->xfer_dma & 0x3)); + chan->align_buf = 0; + } + if (chan->ep_type == USB_ENDPOINT_XFER_INT || chan->ep_type == USB_ENDPOINT_XFER_ISOC) /* @@ -3012,7 +3083,7 @@ static void dwc2_process_periodic_channels(struct dwc2_hsotg *hsotg) if (dbg_perio()) dev_vdbg(hsotg->dev, "Queue periodic transactions\n"); - tx_status = dwc2_readl(hsotg->regs + HPTXSTS); + tx_status = dwc2_readl(hsotg, HPTXSTS); qspcavail = (tx_status & TXSTS_QSPCAVAIL_MASK) >> TXSTS_QSPCAVAIL_SHIFT; fspcavail = (tx_status & TXSTS_FSPCAVAIL_MASK) >> @@ -3027,7 +3098,7 @@ static void dwc2_process_periodic_channels(struct dwc2_hsotg *hsotg) qh_ptr = hsotg->periodic_sched_assigned.next; while (qh_ptr != &hsotg->periodic_sched_assigned) { - tx_status = dwc2_readl(hsotg->regs + HPTXSTS); + tx_status = dwc2_readl(hsotg, HPTXSTS); qspcavail = (tx_status & TXSTS_QSPCAVAIL_MASK) >> TXSTS_QSPCAVAIL_SHIFT; if (qspcavail == 0) { @@ -3097,10 +3168,10 @@ exit: * level to ensure that new requests are loaded as * soon as possible.) */ - gintmsk = dwc2_readl(hsotg->regs + GINTMSK); + gintmsk = dwc2_readl(hsotg, GINTMSK); if (!(gintmsk & GINTSTS_PTXFEMP)) { gintmsk |= GINTSTS_PTXFEMP; - dwc2_writel(gintmsk, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, gintmsk, GINTMSK); } } else { /* @@ -3110,10 +3181,10 @@ exit: * handlers to queue more transactions as transfer * states change. */ - gintmsk = dwc2_readl(hsotg->regs + GINTMSK); + gintmsk = dwc2_readl(hsotg, GINTMSK); if (gintmsk & GINTSTS_PTXFEMP) { gintmsk &= ~GINTSTS_PTXFEMP; - dwc2_writel(gintmsk, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, gintmsk, GINTMSK); } } } @@ -3142,7 +3213,7 @@ static void dwc2_process_non_periodic_channels(struct dwc2_hsotg *hsotg) dev_vdbg(hsotg->dev, "Queue non-periodic transactions\n"); - tx_status = dwc2_readl(hsotg->regs + GNPTXSTS); + tx_status = dwc2_readl(hsotg, GNPTXSTS); qspcavail = (tx_status & TXSTS_QSPCAVAIL_MASK) >> TXSTS_QSPCAVAIL_SHIFT; fspcavail = (tx_status & TXSTS_FSPCAVAIL_MASK) >> @@ -3165,7 +3236,7 @@ static void dwc2_process_non_periodic_channels(struct dwc2_hsotg *hsotg) * available in the request queue or the Tx FIFO */ do { - tx_status = dwc2_readl(hsotg->regs + GNPTXSTS); + tx_status = dwc2_readl(hsotg, GNPTXSTS); qspcavail = (tx_status & TXSTS_QSPCAVAIL_MASK) >> TXSTS_QSPCAVAIL_SHIFT; if (!hsotg->params.host_dma && qspcavail == 0) { @@ -3202,7 +3273,7 @@ next: } while (hsotg->non_periodic_qh_ptr != orig_qh_ptr); if (!hsotg->params.host_dma) { - tx_status = dwc2_readl(hsotg->regs + GNPTXSTS); + tx_status = dwc2_readl(hsotg, GNPTXSTS); qspcavail = (tx_status & TXSTS_QSPCAVAIL_MASK) >> TXSTS_QSPCAVAIL_SHIFT; fspcavail = (tx_status & TXSTS_FSPCAVAIL_MASK) >> @@ -3222,9 +3293,9 @@ next: * level to ensure that new requests are loaded as * soon as possible.) */ - gintmsk = dwc2_readl(hsotg->regs + GINTMSK); + gintmsk = dwc2_readl(hsotg, GINTMSK); gintmsk |= GINTSTS_NPTXFEMP; - dwc2_writel(gintmsk, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, gintmsk, GINTMSK); } else { /* * Disable the Tx FIFO empty interrupt since there are @@ -3233,9 +3304,9 @@ next: * handlers to queue more transactions as transfer * states change. */ - gintmsk = dwc2_readl(hsotg->regs + GINTMSK); + gintmsk = dwc2_readl(hsotg, GINTMSK); gintmsk &= ~GINTSTS_NPTXFEMP; - dwc2_writel(gintmsk, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, gintmsk, GINTMSK); } } } @@ -3272,10 +3343,10 @@ void dwc2_hcd_queue_transactions(struct dwc2_hsotg *hsotg, * Ensure NP Tx FIFO empty interrupt is disabled when * there are no non-periodic transfers to process */ - u32 gintmsk = dwc2_readl(hsotg->regs + GINTMSK); + u32 gintmsk = dwc2_readl(hsotg, GINTMSK); gintmsk &= ~GINTSTS_NPTXFEMP; - dwc2_writel(gintmsk, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, gintmsk, GINTMSK); } } } @@ -3290,7 +3361,7 @@ static void dwc2_conn_id_status_change(struct work_struct *work) dev_dbg(hsotg->dev, "%s()\n", __func__); - gotgctl = dwc2_readl(hsotg->regs + GOTGCTL); + gotgctl = dwc2_readl(hsotg, GOTGCTL); dev_dbg(hsotg->dev, "gotgctl=%0x\n", gotgctl); dev_dbg(hsotg->dev, "gotgctl.b.conidsts=%d\n", !!(gotgctl & GOTGCTL_CONID_B)); @@ -3316,7 +3387,7 @@ static void dwc2_conn_id_status_change(struct work_struct *work) * check it again and jump to host mode if that was * the case. */ - gotgctl = dwc2_readl(hsotg->regs + GOTGCTL); + gotgctl = dwc2_readl(hsotg, GOTGCTL); if (!(gotgctl & GOTGCTL_CONID_B)) goto host; if (++count > 250) @@ -3376,9 +3447,9 @@ static void dwc2_wakeup_detected(struct timer_list *t) hprt0 = dwc2_read_hprt0(hsotg); dev_dbg(hsotg->dev, "Resume: HPRT0=%0x\n", hprt0); hprt0 &= ~HPRT0_RES; - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); dev_dbg(hsotg->dev, "Clear Resume: HPRT0=%0x\n", - dwc2_readl(hsotg->regs + HPRT0)); + dwc2_readl(hsotg, HPRT0)); dwc2_hcd_rem_wakeup(hsotg); hsotg->bus_suspended = false; @@ -3407,15 +3478,15 @@ static void dwc2_port_suspend(struct dwc2_hsotg *hsotg, u16 windex) spin_lock_irqsave(&hsotg->lock, flags); if (windex == hsotg->otg_port && dwc2_host_is_b_hnp_enabled(hsotg)) { - gotgctl = dwc2_readl(hsotg->regs + GOTGCTL); + gotgctl = dwc2_readl(hsotg, GOTGCTL); gotgctl |= GOTGCTL_HSTSETHNPEN; - dwc2_writel(gotgctl, hsotg->regs + GOTGCTL); + dwc2_writel(hsotg, gotgctl, GOTGCTL); hsotg->op_state = OTG_STATE_A_SUSPEND; } hprt0 = dwc2_read_hprt0(hsotg); hprt0 |= HPRT0_SUSP; - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); hsotg->bus_suspended = true; @@ -3425,17 +3496,17 @@ static void dwc2_port_suspend(struct dwc2_hsotg *hsotg, u16 windex) */ if (!hsotg->params.power_down) { /* Suspend the Phy Clock */ - pcgctl = dwc2_readl(hsotg->regs + PCGCTL); + pcgctl = dwc2_readl(hsotg, PCGCTL); pcgctl |= PCGCTL_STOPPCLK; - dwc2_writel(pcgctl, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, pcgctl, PCGCTL); udelay(10); } /* For HNP the bus must be suspended for at least 200ms */ if (dwc2_host_is_b_hnp_enabled(hsotg)) { - pcgctl = dwc2_readl(hsotg->regs + PCGCTL); + pcgctl = dwc2_readl(hsotg, PCGCTL); pcgctl &= ~PCGCTL_STOPPCLK; - dwc2_writel(pcgctl, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, pcgctl, PCGCTL); spin_unlock_irqrestore(&hsotg->lock, flags); @@ -3459,9 +3530,9 @@ static void dwc2_port_resume(struct dwc2_hsotg *hsotg) * after registers restore. */ if (!hsotg->params.power_down) { - pcgctl = dwc2_readl(hsotg->regs + PCGCTL); + pcgctl = dwc2_readl(hsotg, PCGCTL); pcgctl &= ~PCGCTL_STOPPCLK; - dwc2_writel(pcgctl, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, pcgctl, PCGCTL); spin_unlock_irqrestore(&hsotg->lock, flags); msleep(20); spin_lock_irqsave(&hsotg->lock, flags); @@ -3470,7 +3541,7 @@ static void dwc2_port_resume(struct dwc2_hsotg *hsotg) hprt0 = dwc2_read_hprt0(hsotg); hprt0 |= HPRT0_RES; hprt0 &= ~HPRT0_SUSP; - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); spin_unlock_irqrestore(&hsotg->lock, flags); msleep(USB_RESUME_TIMEOUT); @@ -3478,7 +3549,7 @@ static void dwc2_port_resume(struct dwc2_hsotg *hsotg) spin_lock_irqsave(&hsotg->lock, flags); hprt0 = dwc2_read_hprt0(hsotg); hprt0 &= ~(HPRT0_RES | HPRT0_SUSP); - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); hsotg->bus_suspended = false; spin_unlock_irqrestore(&hsotg->lock, flags); } @@ -3522,7 +3593,7 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq, "ClearPortFeature USB_PORT_FEAT_ENABLE\n"); hprt0 = dwc2_read_hprt0(hsotg); hprt0 |= HPRT0_ENA; - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); break; case USB_PORT_FEAT_SUSPEND: @@ -3542,7 +3613,7 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq, "ClearPortFeature USB_PORT_FEAT_POWER\n"); hprt0 = dwc2_read_hprt0(hsotg); hprt0 &= ~HPRT0_PWR; - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); break; case USB_PORT_FEAT_INDICATOR: @@ -3663,7 +3734,7 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq, break; } - hprt0 = dwc2_readl(hsotg->regs + HPRT0); + hprt0 = dwc2_readl(hsotg, HPRT0); dev_vdbg(hsotg->dev, " HPRT0: 0x%08x\n", hprt0); if (hprt0 & HPRT0_CONNSTS) @@ -3704,9 +3775,9 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq, dev_info(hsotg->dev, "Enabling descriptor DMA mode\n"); hsotg->params.dma_desc_enable = true; - hcfg = dwc2_readl(hsotg->regs + HCFG); + hcfg = dwc2_readl(hsotg, HCFG); hcfg |= HCFG_DESCDMA; - dwc2_writel(hcfg, hsotg->regs + HCFG); + dwc2_writel(hsotg, hcfg, HCFG); hsotg->new_connection = false; } } @@ -3753,7 +3824,7 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq, "SetPortFeature - USB_PORT_FEAT_POWER\n"); hprt0 = dwc2_read_hprt0(hsotg); hprt0 |= HPRT0_PWR; - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); break; case USB_PORT_FEAT_RESET: @@ -3763,11 +3834,11 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq, hprt0 = dwc2_read_hprt0(hsotg); dev_dbg(hsotg->dev, "SetPortFeature - USB_PORT_FEAT_RESET\n"); - pcgctl = dwc2_readl(hsotg->regs + PCGCTL); + pcgctl = dwc2_readl(hsotg, PCGCTL); pcgctl &= ~(PCGCTL_ENBL_SLEEP_GATING | PCGCTL_STOPPCLK); - dwc2_writel(pcgctl, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, pcgctl, PCGCTL); /* ??? Original driver does this */ - dwc2_writel(0, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, 0, PCGCTL); hprt0 = dwc2_read_hprt0(hsotg); /* Clear suspend bit if resetting from suspend state */ @@ -3782,13 +3853,13 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq, hprt0 |= HPRT0_PWR | HPRT0_RST; dev_dbg(hsotg->dev, "In host mode, hprt0=%08x\n", hprt0); - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); } /* Clear reset bit in 10ms (FS/LS) or 50ms (HS) */ msleep(50); hprt0 &= ~HPRT0_RST; - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); hsotg->lx_state = DWC2_L0; /* Now back to On state */ break; @@ -3804,7 +3875,7 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq, "SetPortFeature - USB_PORT_FEAT_TEST\n"); hprt0 &= ~HPRT0_TSTCTL_MASK; hprt0 |= (windex >> 8) << HPRT0_TSTCTL_SHIFT; - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); break; default: @@ -3861,7 +3932,7 @@ static int dwc2_hcd_is_status_changed(struct dwc2_hsotg *hsotg, int port) int dwc2_hcd_get_frame_number(struct dwc2_hsotg *hsotg) { - u32 hfnum = dwc2_readl(hsotg->regs + HFNUM); + u32 hfnum = dwc2_readl(hsotg, HFNUM); #ifdef DWC2_DEBUG_SOF dev_vdbg(hsotg->dev, "DWC OTG HCD GET FRAME NUMBER %d\n", @@ -3872,9 +3943,9 @@ int dwc2_hcd_get_frame_number(struct dwc2_hsotg *hsotg) int dwc2_hcd_get_future_frame_number(struct dwc2_hsotg *hsotg, int us) { - u32 hprt = dwc2_readl(hsotg->regs + HPRT0); - u32 hfir = dwc2_readl(hsotg->regs + HFIR); - u32 hfnum = dwc2_readl(hsotg->regs + HFNUM); + u32 hprt = dwc2_readl(hsotg, HPRT0); + u32 hfir = dwc2_readl(hsotg, HFIR); + u32 hfnum = dwc2_readl(hsotg, HFNUM); unsigned int us_per_frame; unsigned int frame_number; unsigned int remaining; @@ -3993,11 +4064,11 @@ void dwc2_hcd_dump_state(struct dwc2_hsotg *hsotg) if (chan->xfer_started) { u32 hfnum, hcchar, hctsiz, hcint, hcintmsk; - hfnum = dwc2_readl(hsotg->regs + HFNUM); - hcchar = dwc2_readl(hsotg->regs + HCCHAR(i)); - hctsiz = dwc2_readl(hsotg->regs + HCTSIZ(i)); - hcint = dwc2_readl(hsotg->regs + HCINT(i)); - hcintmsk = dwc2_readl(hsotg->regs + HCINTMSK(i)); + hfnum = dwc2_readl(hsotg, HFNUM); + hcchar = dwc2_readl(hsotg, HCCHAR(i)); + hctsiz = dwc2_readl(hsotg, HCTSIZ(i)); + hcint = dwc2_readl(hsotg, HCINT(i)); + hcintmsk = dwc2_readl(hsotg, HCINTMSK(i)); dev_dbg(hsotg->dev, " hfnum: 0x%08x\n", hfnum); dev_dbg(hsotg->dev, " hcchar: 0x%08x\n", hcchar); dev_dbg(hsotg->dev, " hctsiz: 0x%08x\n", hctsiz); @@ -4045,12 +4116,12 @@ void dwc2_hcd_dump_state(struct dwc2_hsotg *hsotg) dev_dbg(hsotg->dev, " periodic_channels: %d\n", hsotg->periodic_channels); dev_dbg(hsotg->dev, " periodic_usecs: %d\n", hsotg->periodic_usecs); - np_tx_status = dwc2_readl(hsotg->regs + GNPTXSTS); + np_tx_status = dwc2_readl(hsotg, GNPTXSTS); dev_dbg(hsotg->dev, " NP Tx Req Queue Space Avail: %d\n", (np_tx_status & TXSTS_QSPCAVAIL_MASK) >> TXSTS_QSPCAVAIL_SHIFT); dev_dbg(hsotg->dev, " NP Tx FIFO Space Avail: %d\n", (np_tx_status & TXSTS_FSPCAVAIL_MASK) >> TXSTS_FSPCAVAIL_SHIFT); - p_tx_status = dwc2_readl(hsotg->regs + HPTXSTS); + p_tx_status = dwc2_readl(hsotg, HPTXSTS); dev_dbg(hsotg->dev, " P Tx Req Queue Space Avail: %d\n", (p_tx_status & TXSTS_QSPCAVAIL_MASK) >> TXSTS_QSPCAVAIL_SHIFT); dev_dbg(hsotg->dev, " P Tx FIFO Space Avail: %d\n", @@ -4300,7 +4371,7 @@ static void dwc2_hcd_reset_func(struct work_struct *work) hprt0 = dwc2_read_hprt0(hsotg); hprt0 &= ~HPRT0_RST; - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); hsotg->flags.b.port_reset_change = 1; spin_unlock_irqrestore(&hsotg->lock, flags); @@ -4410,7 +4481,7 @@ static int _dwc2_hcd_suspend(struct usb_hcd *hcd) hprt0 = dwc2_read_hprt0(hsotg); hprt0 |= HPRT0_SUSP; hprt0 &= ~HPRT0_PWR; - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); dwc2_vbus_supply_exit(hsotg); } @@ -4501,8 +4572,8 @@ static int _dwc2_hcd_resume(struct usb_hcd *hcd) * Clear Port Enable and Port Status changes. * Enable Port Power. */ - dwc2_writel(HPRT0_PWR | HPRT0_CONNDET | - HPRT0_ENACHG, hsotg->regs + HPRT0); + dwc2_writel(hsotg, HPRT0_PWR | HPRT0_CONNDET | + HPRT0_ENACHG, HPRT0); /* Wait for controller to detect Port Connect */ usleep_range(5000, 7000); } @@ -5022,17 +5093,17 @@ static void dwc2_hcd_free(struct dwc2_hsotg *hsotg) hsotg->status_buf = NULL; } - ahbcfg = dwc2_readl(hsotg->regs + GAHBCFG); + ahbcfg = dwc2_readl(hsotg, GAHBCFG); /* Disable all interrupts */ ahbcfg &= ~GAHBCFG_GLBL_INTR_EN; - dwc2_writel(ahbcfg, hsotg->regs + GAHBCFG); - dwc2_writel(0, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, ahbcfg, GAHBCFG); + dwc2_writel(hsotg, 0, GINTMSK); if (hsotg->hw_params.snpsid >= DWC2_CORE_REV_3_00a) { - dctl = dwc2_readl(hsotg->regs + DCTL); + dctl = dwc2_readl(hsotg, DCTL); dctl |= DCTL_SFTDISCON; - dwc2_writel(dctl, hsotg->regs + DCTL); + dwc2_writel(hsotg, dctl, DCTL); } if (hsotg->wq_otg) { @@ -5075,7 +5146,7 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg) retval = -ENOMEM; - hcfg = dwc2_readl(hsotg->regs + HCFG); + hcfg = dwc2_readl(hsotg, HCFG); dev_dbg(hsotg->dev, "hcfg=%08x\n", hcfg); #ifdef CONFIG_USB_DWC2_TRACK_MISSED_SOFS @@ -5246,6 +5317,19 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg) } } + if (hsotg->params.host_dma) { + /* + * Create kmem caches to handle non-aligned buffer + * in Buffer DMA mode. + */ + hsotg->unaligned_cache = kmem_cache_create("dwc2-unaligned-dma", + DWC2_KMEM_UNALIGNED_BUF_SIZE, 4, + SLAB_CACHE_DMA, NULL); + if (!hsotg->unaligned_cache) + dev_err(hsotg->dev, + "unable to create dwc2 unaligned cache\n"); + } + hsotg->otg_port = 1; hsotg->frame_list = NULL; hsotg->frame_list_dma = 0; @@ -5280,8 +5364,9 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg) return 0; error4: - kmem_cache_destroy(hsotg->desc_gen_cache); + kmem_cache_destroy(hsotg->unaligned_cache); kmem_cache_destroy(hsotg->desc_hsisoc_cache); + kmem_cache_destroy(hsotg->desc_gen_cache); error3: dwc2_hcd_release(hsotg); error2: @@ -5322,8 +5407,9 @@ void dwc2_hcd_remove(struct dwc2_hsotg *hsotg) usb_remove_hcd(hcd); hsotg->priv = NULL; - kmem_cache_destroy(hsotg->desc_gen_cache); + kmem_cache_destroy(hsotg->unaligned_cache); kmem_cache_destroy(hsotg->desc_hsisoc_cache); + kmem_cache_destroy(hsotg->desc_gen_cache); dwc2_hcd_release(hsotg); usb_put_hcd(hcd); @@ -5350,14 +5436,14 @@ int dwc2_backup_host_registers(struct dwc2_hsotg *hsotg) /* Backup Host regs */ hr = &hsotg->hr_backup; - hr->hcfg = dwc2_readl(hsotg->regs + HCFG); - hr->haintmsk = dwc2_readl(hsotg->regs + HAINTMSK); + hr->hcfg = dwc2_readl(hsotg, HCFG); + hr->haintmsk = dwc2_readl(hsotg, HAINTMSK); for (i = 0; i < hsotg->params.host_channels; ++i) - hr->hcintmsk[i] = dwc2_readl(hsotg->regs + HCINTMSK(i)); + hr->hcintmsk[i] = dwc2_readl(hsotg, HCINTMSK(i)); hr->hprt0 = dwc2_read_hprt0(hsotg); - hr->hfir = dwc2_readl(hsotg->regs + HFIR); - hr->hptxfsiz = dwc2_readl(hsotg->regs + HPTXFSIZ); + hr->hfir = dwc2_readl(hsotg, HFIR); + hr->hptxfsiz = dwc2_readl(hsotg, HPTXFSIZ); hr->valid = true; return 0; @@ -5386,15 +5472,15 @@ int dwc2_restore_host_registers(struct dwc2_hsotg *hsotg) } hr->valid = false; - dwc2_writel(hr->hcfg, hsotg->regs + HCFG); - dwc2_writel(hr->haintmsk, hsotg->regs + HAINTMSK); + dwc2_writel(hsotg, hr->hcfg, HCFG); + dwc2_writel(hsotg, hr->haintmsk, HAINTMSK); for (i = 0; i < hsotg->params.host_channels; ++i) - dwc2_writel(hr->hcintmsk[i], hsotg->regs + HCINTMSK(i)); + dwc2_writel(hsotg, hr->hcintmsk[i], HCINTMSK(i)); - dwc2_writel(hr->hprt0, hsotg->regs + HPRT0); - dwc2_writel(hr->hfir, hsotg->regs + HFIR); - dwc2_writel(hr->hptxfsiz, hsotg->regs + HPTXFSIZ); + dwc2_writel(hsotg, hr->hprt0, HPRT0); + dwc2_writel(hsotg, hr->hfir, HFIR); + dwc2_writel(hsotg, hr->hptxfsiz, HPTXFSIZ); hsotg->frame_number = 0; return 0; @@ -5429,13 +5515,13 @@ int dwc2_host_enter_hibernation(struct dwc2_hsotg *hsotg) } /* Enter USB Suspend Mode */ - hprt0 = dwc2_readl(hsotg->regs + HPRT0); + hprt0 = dwc2_readl(hsotg, HPRT0); hprt0 |= HPRT0_SUSP; hprt0 &= ~HPRT0_ENA; - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); /* Wait for the HPRT0.PrtSusp register field to be set */ - if (dwc2_hsotg_wait_bit_set(hsotg, HPRT0, HPRT0_SUSP, 300)) + if (dwc2_hsotg_wait_bit_set(hsotg, HPRT0, HPRT0_SUSP, 3000)) dev_warn(hsotg->dev, "Suspend wasn't generated\n"); /* @@ -5445,56 +5531,56 @@ int dwc2_host_enter_hibernation(struct dwc2_hsotg *hsotg) spin_lock_irqsave(&hsotg->lock, flags); hsotg->lx_state = DWC2_L2; - gusbcfg = dwc2_readl(hsotg->regs + GUSBCFG); + gusbcfg = dwc2_readl(hsotg, GUSBCFG); if (gusbcfg & GUSBCFG_ULPI_UTMI_SEL) { /* ULPI interface */ /* Suspend the Phy Clock */ - pcgcctl = dwc2_readl(hsotg->regs + PCGCTL); + pcgcctl = dwc2_readl(hsotg, PCGCTL); pcgcctl |= PCGCTL_STOPPCLK; - dwc2_writel(pcgcctl, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, pcgcctl, PCGCTL); udelay(10); - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn |= GPWRDN_PMUACTV; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(10); } else { /* UTMI+ Interface */ - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn |= GPWRDN_PMUACTV; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(10); - pcgcctl = dwc2_readl(hsotg->regs + PCGCTL); + pcgcctl = dwc2_readl(hsotg, PCGCTL); pcgcctl |= PCGCTL_STOPPCLK; - dwc2_writel(pcgcctl, hsotg->regs + PCGCTL); + dwc2_writel(hsotg, pcgcctl, PCGCTL); udelay(10); } /* Enable interrupts from wake up logic */ - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn |= GPWRDN_PMUINTSEL; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(10); /* Unmask host mode interrupts in GPWRDN */ - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn |= GPWRDN_DISCONN_DET_MSK; gpwrdn |= GPWRDN_LNSTSCHG_MSK; gpwrdn |= GPWRDN_STS_CHGINT_MSK; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(10); /* Enable Power Down Clamp */ - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn |= GPWRDN_PWRDNCLMP; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(10); /* Switch off VDD */ - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn |= GPWRDN_PWRDNSWTCH; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); hsotg->hibernated = 1; hsotg->bus_suspended = 1; @@ -5542,29 +5628,29 @@ int dwc2_host_exit_hibernation(struct dwc2_hsotg *hsotg, int rem_wakeup, mdelay(100); /* Clear all pending interupts */ - dwc2_writel(0xffffffff, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, 0xffffffff, GINTSTS); /* De-assert Restore */ - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn &= ~GPWRDN_RESTORE; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(10); /* Restore GUSBCFG, HCFG */ - dwc2_writel(gr->gusbcfg, hsotg->regs + GUSBCFG); - dwc2_writel(hr->hcfg, hsotg->regs + HCFG); + dwc2_writel(hsotg, gr->gusbcfg, GUSBCFG); + dwc2_writel(hsotg, hr->hcfg, HCFG); /* De-assert Wakeup Logic */ - gpwrdn = dwc2_readl(hsotg->regs + GPWRDN); + gpwrdn = dwc2_readl(hsotg, GPWRDN); gpwrdn &= ~GPWRDN_PMUACTV; - dwc2_writel(gpwrdn, hsotg->regs + GPWRDN); + dwc2_writel(hsotg, gpwrdn, GPWRDN); udelay(10); hprt0 = hr->hprt0; hprt0 |= HPRT0_PWR; hprt0 &= ~HPRT0_ENA; hprt0 &= ~HPRT0_SUSP; - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); hprt0 = hr->hprt0; hprt0 |= HPRT0_PWR; @@ -5573,32 +5659,32 @@ int dwc2_host_exit_hibernation(struct dwc2_hsotg *hsotg, int rem_wakeup, if (reset) { hprt0 |= HPRT0_RST; - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); /* Wait for Resume time and then program HPRT again */ mdelay(60); hprt0 &= ~HPRT0_RST; - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); } else { hprt0 |= HPRT0_RES; - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); /* Wait for Resume time and then program HPRT again */ mdelay(100); hprt0 &= ~HPRT0_RES; - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); } /* Clear all interrupt status */ - hprt0 = dwc2_readl(hsotg->regs + HPRT0); + hprt0 = dwc2_readl(hsotg, HPRT0); hprt0 |= HPRT0_CONNDET; hprt0 |= HPRT0_ENACHG; hprt0 &= ~HPRT0_ENA; - dwc2_writel(hprt0, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0, HPRT0); - hprt0 = dwc2_readl(hsotg->regs + HPRT0); + hprt0 = dwc2_readl(hsotg, HPRT0); /* Clear all pending interupts */ - dwc2_writel(0xffffffff, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, 0xffffffff, GINTSTS); /* Restore global registers */ ret = dwc2_restore_global_registers(hsotg); @@ -5616,6 +5702,8 @@ int dwc2_host_exit_hibernation(struct dwc2_hsotg *hsotg, int rem_wakeup, return ret; } + dwc2_hcd_rem_wakeup(hsotg); + hsotg->hibernated = 0; hsotg->bus_suspended = 0; hsotg->lx_state = DWC2_L0; diff --git a/drivers/usb/dwc2/hcd.h b/drivers/usb/dwc2/hcd.h index 7db1ee7e7a77..3f9bccc95add 100644 --- a/drivers/usb/dwc2/hcd.h +++ b/drivers/usb/dwc2/hcd.h @@ -76,6 +76,8 @@ struct dwc2_qh; * (micro)frame * @xfer_buf: Pointer to current transfer buffer position * @xfer_dma: DMA address of xfer_buf + * @align_buf: In Buffer DMA mode this will be used if xfer_buf is not + * DWORD aligned * @xfer_len: Total number of bytes to transfer * @xfer_count: Number of bytes transferred so far * @start_pkt_count: Packet count at start of transfer @@ -133,6 +135,7 @@ struct dwc2_host_chan { u8 *xfer_buf; dma_addr_t xfer_dma; + dma_addr_t align_buf; u32 xfer_len; u32 xfer_count; u16 start_pkt_count; @@ -302,6 +305,9 @@ struct dwc2_hs_transfer_time { * speed. Note that this is in "schedule slice" which * is tightly packed. * @ntd: Actual number of transfer descriptors in a list + * @dw_align_buf: Used instead of original buffer if its physical address + * is not dword-aligned + * @dw_align_buf_dma: DMA address for dw_align_buf * @qtd_list: List of QTDs for this QH * @channel: Host channel currently processing transfers for this QH * @qh_list_entry: Entry for QH in either the periodic or non-periodic @@ -350,6 +356,8 @@ struct dwc2_qh { struct dwc2_hs_transfer_time hs_transfers[DWC2_HS_SCHEDULE_UFRAMES]; u32 ls_start_schedule_slice; u16 ntd; + u8 *dw_align_buf; + dma_addr_t dw_align_buf_dma; struct list_head qtd_list; struct dwc2_host_chan *channel; struct list_head qh_list_entry; @@ -461,10 +469,10 @@ static inline struct usb_hcd *dwc2_hsotg_to_hcd(struct dwc2_hsotg *hsotg) */ static inline void disable_hc_int(struct dwc2_hsotg *hsotg, int chnum, u32 intr) { - u32 mask = dwc2_readl(hsotg->regs + HCINTMSK(chnum)); + u32 mask = dwc2_readl(hsotg, HCINTMSK(chnum)); mask &= ~intr; - dwc2_writel(mask, hsotg->regs + HCINTMSK(chnum)); + dwc2_writel(hsotg, mask, HCINTMSK(chnum)); } void dwc2_hc_cleanup(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan); @@ -479,7 +487,7 @@ void dwc2_hc_start_transfer_ddma(struct dwc2_hsotg *hsotg, */ static inline u32 dwc2_read_hprt0(struct dwc2_hsotg *hsotg) { - u32 hprt0 = dwc2_readl(hsotg->regs + HPRT0); + u32 hprt0 = dwc2_readl(hsotg, HPRT0); hprt0 &= ~(HPRT0_ENA | HPRT0_CONNDET | HPRT0_ENACHG | HPRT0_OVRCURRCHG); return hprt0; @@ -682,8 +690,8 @@ static inline u16 dwc2_micro_frame_num(u16 frame) */ static inline u32 dwc2_read_core_intr(struct dwc2_hsotg *hsotg) { - return dwc2_readl(hsotg->regs + GINTSTS) & - dwc2_readl(hsotg->regs + GINTMSK); + return dwc2_readl(hsotg, GINTSTS) & + dwc2_readl(hsotg, GINTMSK); } static inline u32 dwc2_hcd_urb_get_status(struct dwc2_hcd_urb *dwc2_urb) diff --git a/drivers/usb/dwc2/hcd_ddma.c b/drivers/usb/dwc2/hcd_ddma.c index 74f11c823f79..a858b5f9c1d6 100644 --- a/drivers/usb/dwc2/hcd_ddma.c +++ b/drivers/usb/dwc2/hcd_ddma.c @@ -185,19 +185,19 @@ static void dwc2_per_sched_enable(struct dwc2_hsotg *hsotg, u32 fr_list_en) spin_lock_irqsave(&hsotg->lock, flags); - hcfg = dwc2_readl(hsotg->regs + HCFG); + hcfg = dwc2_readl(hsotg, HCFG); if (hcfg & HCFG_PERSCHEDENA) { /* already enabled */ spin_unlock_irqrestore(&hsotg->lock, flags); return; } - dwc2_writel(hsotg->frame_list_dma, hsotg->regs + HFLBADDR); + dwc2_writel(hsotg, hsotg->frame_list_dma, HFLBADDR); hcfg &= ~HCFG_FRLISTEN_MASK; hcfg |= fr_list_en | HCFG_PERSCHEDENA; dev_vdbg(hsotg->dev, "Enabling Periodic schedule\n"); - dwc2_writel(hcfg, hsotg->regs + HCFG); + dwc2_writel(hsotg, hcfg, HCFG); spin_unlock_irqrestore(&hsotg->lock, flags); } @@ -209,7 +209,7 @@ static void dwc2_per_sched_disable(struct dwc2_hsotg *hsotg) spin_lock_irqsave(&hsotg->lock, flags); - hcfg = dwc2_readl(hsotg->regs + HCFG); + hcfg = dwc2_readl(hsotg, HCFG); if (!(hcfg & HCFG_PERSCHEDENA)) { /* already disabled */ spin_unlock_irqrestore(&hsotg->lock, flags); @@ -218,7 +218,7 @@ static void dwc2_per_sched_disable(struct dwc2_hsotg *hsotg) hcfg &= ~HCFG_PERSCHEDENA; dev_vdbg(hsotg->dev, "Disabling Periodic schedule\n"); - dwc2_writel(hcfg, hsotg->regs + HCFG); + dwc2_writel(hsotg, hcfg, HCFG); spin_unlock_irqrestore(&hsotg->lock, flags); } diff --git a/drivers/usb/dwc2/hcd_intr.c b/drivers/usb/dwc2/hcd_intr.c index fbea5e3fb947..88b5dcf3aefc 100644 --- a/drivers/usb/dwc2/hcd_intr.c +++ b/drivers/usb/dwc2/hcd_intr.c @@ -144,7 +144,7 @@ static void dwc2_sof_intr(struct dwc2_hsotg *hsotg) enum dwc2_transaction_type tr_type; /* Clear interrupt */ - dwc2_writel(GINTSTS_SOF, hsotg->regs + GINTSTS); + dwc2_writel(hsotg, GINTSTS_SOF, GINTSTS); #ifdef DEBUG_SOF dev_vdbg(hsotg->dev, "--Start of Frame Interrupt--\n"); @@ -191,7 +191,7 @@ static void dwc2_rx_fifo_level_intr(struct dwc2_hsotg *hsotg) if (dbg_perio()) dev_vdbg(hsotg->dev, "--RxFIFO Level Interrupt--\n"); - grxsts = dwc2_readl(hsotg->regs + GRXSTSP); + grxsts = dwc2_readl(hsotg, GRXSTSP); chnum = (grxsts & GRXSTS_HCHNUM_MASK) >> GRXSTS_HCHNUM_SHIFT; chan = hsotg->hc_ptr_array[chnum]; if (!chan) { @@ -274,11 +274,11 @@ static void dwc2_hprt0_enable(struct dwc2_hsotg *hsotg, u32 hprt0, dev_vdbg(hsotg->dev, "%s(%p)\n", __func__, hsotg); /* Every time when port enables calculate HFIR.FrInterval */ - hfir = dwc2_readl(hsotg->regs + HFIR); + hfir = dwc2_readl(hsotg, HFIR); hfir &= ~HFIR_FRINT_MASK; hfir |= dwc2_calc_frame_interval(hsotg) << HFIR_FRINT_SHIFT & HFIR_FRINT_MASK; - dwc2_writel(hfir, hsotg->regs + HFIR); + dwc2_writel(hsotg, hfir, HFIR); /* Check if we need to adjust the PHY clock speed for low power */ if (!params->host_support_fs_ls_low_power) { @@ -287,7 +287,7 @@ static void dwc2_hprt0_enable(struct dwc2_hsotg *hsotg, u32 hprt0, return; } - usbcfg = dwc2_readl(hsotg->regs + GUSBCFG); + usbcfg = dwc2_readl(hsotg, GUSBCFG); prtspd = (hprt0 & HPRT0_SPD_MASK) >> HPRT0_SPD_SHIFT; if (prtspd == HPRT0_SPD_LOW_SPEED || prtspd == HPRT0_SPD_FULL_SPEED) { @@ -295,11 +295,11 @@ static void dwc2_hprt0_enable(struct dwc2_hsotg *hsotg, u32 hprt0, if (!(usbcfg & GUSBCFG_PHY_LP_CLK_SEL)) { /* Set PHY low power clock select for FS/LS devices */ usbcfg |= GUSBCFG_PHY_LP_CLK_SEL; - dwc2_writel(usbcfg, hsotg->regs + GUSBCFG); + dwc2_writel(hsotg, usbcfg, GUSBCFG); do_reset = 1; } - hcfg = dwc2_readl(hsotg->regs + HCFG); + hcfg = dwc2_readl(hsotg, HCFG); fslspclksel = (hcfg & HCFG_FSLSPCLKSEL_MASK) >> HCFG_FSLSPCLKSEL_SHIFT; @@ -312,7 +312,7 @@ static void dwc2_hprt0_enable(struct dwc2_hsotg *hsotg, u32 hprt0, fslspclksel = HCFG_FSLSPCLKSEL_6_MHZ; hcfg &= ~HCFG_FSLSPCLKSEL_MASK; hcfg |= fslspclksel << HCFG_FSLSPCLKSEL_SHIFT; - dwc2_writel(hcfg, hsotg->regs + HCFG); + dwc2_writel(hsotg, hcfg, HCFG); do_reset = 1; } } else { @@ -323,7 +323,7 @@ static void dwc2_hprt0_enable(struct dwc2_hsotg *hsotg, u32 hprt0, fslspclksel = HCFG_FSLSPCLKSEL_48_MHZ; hcfg &= ~HCFG_FSLSPCLKSEL_MASK; hcfg |= fslspclksel << HCFG_FSLSPCLKSEL_SHIFT; - dwc2_writel(hcfg, hsotg->regs + HCFG); + dwc2_writel(hsotg, hcfg, HCFG); do_reset = 1; } } @@ -331,14 +331,14 @@ static void dwc2_hprt0_enable(struct dwc2_hsotg *hsotg, u32 hprt0, /* Not low power */ if (usbcfg & GUSBCFG_PHY_LP_CLK_SEL) { usbcfg &= ~GUSBCFG_PHY_LP_CLK_SEL; - dwc2_writel(usbcfg, hsotg->regs + GUSBCFG); + dwc2_writel(hsotg, usbcfg, GUSBCFG); do_reset = 1; } } if (do_reset) { *hprt0_modify |= HPRT0_RST; - dwc2_writel(*hprt0_modify, hsotg->regs + HPRT0); + dwc2_writel(hsotg, *hprt0_modify, HPRT0); queue_delayed_work(hsotg->wq_otg, &hsotg->reset_work, msecs_to_jiffies(60)); } else { @@ -359,7 +359,7 @@ static void dwc2_port_intr(struct dwc2_hsotg *hsotg) dev_vdbg(hsotg->dev, "--Port Interrupt--\n"); - hprt0 = dwc2_readl(hsotg->regs + HPRT0); + hprt0 = dwc2_readl(hsotg, HPRT0); hprt0_modify = hprt0; /* @@ -374,7 +374,7 @@ static void dwc2_port_intr(struct dwc2_hsotg *hsotg) * Set flag and clear if detected */ if (hprt0 & HPRT0_CONNDET) { - dwc2_writel(hprt0_modify | HPRT0_CONNDET, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0_modify | HPRT0_CONNDET, HPRT0); dev_vdbg(hsotg->dev, "--Port Interrupt HPRT0=0x%08x Port Connect Detected--\n", @@ -392,7 +392,7 @@ static void dwc2_port_intr(struct dwc2_hsotg *hsotg) * Clear if detected - Set internal flag if disabled */ if (hprt0 & HPRT0_ENACHG) { - dwc2_writel(hprt0_modify | HPRT0_ENACHG, hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0_modify | HPRT0_ENACHG, HPRT0); dev_vdbg(hsotg->dev, " --Port Interrupt HPRT0=0x%08x Port Enable Changed (now %d)--\n", hprt0, !!(hprt0 & HPRT0_ENA)); @@ -406,17 +406,17 @@ static void dwc2_port_intr(struct dwc2_hsotg *hsotg) hsotg->params.dma_desc_enable = false; hsotg->new_connection = false; - hcfg = dwc2_readl(hsotg->regs + HCFG); + hcfg = dwc2_readl(hsotg, HCFG); hcfg &= ~HCFG_DESCDMA; - dwc2_writel(hcfg, hsotg->regs + HCFG); + dwc2_writel(hsotg, hcfg, HCFG); } } } /* Overcurrent Change Interrupt */ if (hprt0 & HPRT0_OVRCURRCHG) { - dwc2_writel(hprt0_modify | HPRT0_OVRCURRCHG, - hsotg->regs + HPRT0); + dwc2_writel(hsotg, hprt0_modify | HPRT0_OVRCURRCHG, + HPRT0); dev_vdbg(hsotg->dev, " --Port Interrupt HPRT0=0x%08x Port Overcurrent Changed--\n", hprt0); @@ -441,7 +441,7 @@ static u32 dwc2_get_actual_xfer_length(struct dwc2_hsotg *hsotg, { u32 hctsiz, count, length; - hctsiz = dwc2_readl(hsotg->regs + HCTSIZ(chnum)); + hctsiz = dwc2_readl(hsotg, HCTSIZ(chnum)); if (halt_status == DWC2_HC_XFER_COMPLETE) { if (chan->ep_is_in) { @@ -518,7 +518,7 @@ static int dwc2_update_urb_state(struct dwc2_hsotg *hsotg, urb->status = 0; } - hctsiz = dwc2_readl(hsotg->regs + HCTSIZ(chnum)); + hctsiz = dwc2_readl(hsotg, HCTSIZ(chnum)); dev_vdbg(hsotg->dev, "DWC_otg: %s: %s, channel %d\n", __func__, (chan->ep_is_in ? "IN" : "OUT"), chnum); dev_vdbg(hsotg->dev, " chan->xfer_len %d\n", chan->xfer_len); @@ -541,7 +541,7 @@ void dwc2_hcd_save_data_toggle(struct dwc2_hsotg *hsotg, struct dwc2_host_chan *chan, int chnum, struct dwc2_qtd *qtd) { - u32 hctsiz = dwc2_readl(hsotg->regs + HCTSIZ(chnum)); + u32 hctsiz = dwc2_readl(hsotg, HCTSIZ(chnum)); u32 pid = (hctsiz & TSIZ_SC_MC_PID_MASK) >> TSIZ_SC_MC_PID_SHIFT; if (chan->ep_type != USB_ENDPOINT_XFER_CONTROL) { @@ -780,9 +780,9 @@ cleanup: } } - haintmsk = dwc2_readl(hsotg->regs + HAINTMSK); + haintmsk = dwc2_readl(hsotg, HAINTMSK); haintmsk &= ~(1 << chan->hc_num); - dwc2_writel(haintmsk, hsotg->regs + HAINTMSK); + dwc2_writel(hsotg, haintmsk, HAINTMSK); /* Try to queue more transfers now that there's a free channel */ tr_type = dwc2_hcd_select_transactions(hsotg); @@ -829,9 +829,9 @@ static void dwc2_halt_channel(struct dwc2_hsotg *hsotg, * is enabled so that the non-periodic schedule will * be processed */ - gintmsk = dwc2_readl(hsotg->regs + GINTMSK); + gintmsk = dwc2_readl(hsotg, GINTMSK); gintmsk |= GINTSTS_NPTXFEMP; - dwc2_writel(gintmsk, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, gintmsk, GINTMSK); } else { dev_vdbg(hsotg->dev, "isoc/intr\n"); /* @@ -848,9 +848,9 @@ static void dwc2_halt_channel(struct dwc2_hsotg *hsotg, * enabled so that the periodic schedule will be * processed */ - gintmsk = dwc2_readl(hsotg->regs + GINTMSK); + gintmsk = dwc2_readl(hsotg, GINTMSK); gintmsk |= GINTSTS_PTXFEMP; - dwc2_writel(gintmsk, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, gintmsk, GINTMSK); } } } @@ -915,7 +915,7 @@ static void dwc2_complete_periodic_xfer(struct dwc2_hsotg *hsotg, struct dwc2_qtd *qtd, enum dwc2_halt_status halt_status) { - u32 hctsiz = dwc2_readl(hsotg->regs + HCTSIZ(chnum)); + u32 hctsiz = dwc2_readl(hsotg, HCTSIZ(chnum)); qtd->error_count = 0; @@ -942,17 +942,24 @@ static int dwc2_xfercomp_isoc_split_in(struct dwc2_hsotg *hsotg, frame_desc = &qtd->urb->iso_descs[qtd->isoc_frame_index]; len = dwc2_get_actual_xfer_length(hsotg, chan, chnum, qtd, DWC2_HC_XFER_COMPLETE, NULL); - if (!len) { + if (!len && !qtd->isoc_split_offset) { qtd->complete_split = 0; - qtd->isoc_split_offset = 0; return 0; } frame_desc->actual_length += len; + if (chan->align_buf) { + dev_vdbg(hsotg->dev, "non-aligned buffer\n"); + dma_unmap_single(hsotg->dev, chan->qh->dw_align_buf_dma, + DWC2_KMEM_UNALIGNED_BUF_SIZE, DMA_FROM_DEVICE); + memcpy(qtd->urb->buf + (chan->xfer_dma - qtd->urb->dma), + chan->qh->dw_align_buf, len); + } + qtd->isoc_split_offset += len; - hctsiz = dwc2_readl(hsotg->regs + HCTSIZ(chnum)); + hctsiz = dwc2_readl(hsotg, HCTSIZ(chnum)); pid = (hctsiz & TSIZ_SC_MC_PID_MASK) >> TSIZ_SC_MC_PID_SHIFT; if (frame_desc->actual_length >= frame_desc->length || pid == 0) { @@ -1178,7 +1185,7 @@ static void dwc2_update_urb_state_abn(struct dwc2_hsotg *hsotg, urb->actual_length += xfer_length; - hctsiz = dwc2_readl(hsotg->regs + HCTSIZ(chnum)); + hctsiz = dwc2_readl(hsotg, HCTSIZ(chnum)); dev_vdbg(hsotg->dev, "DWC_otg: %s: %s, channel %d\n", __func__, (chan->ep_is_in ? "IN" : "OUT"), chnum); dev_vdbg(hsotg->dev, " chan->start_pkt_count %d\n", @@ -1224,7 +1231,10 @@ static void dwc2_hc_nak_intr(struct dwc2_hsotg *hsotg, * avoid interrupt storms we'll wait before retrying if we've got * several NAKs. If we didn't do this we'd retry directly from the * interrupt handler and could end up quickly getting another - * interrupt (another NAK), which we'd retry. + * interrupt (another NAK), which we'd retry. Note that we do not + * delay retries for IN parts of control requests, as those are expected + * to complete fairly quickly, and if we delay them we risk confusing + * the device and cause it issue STALL. * * Note that in DMA mode software only gets involved to re-send NAKed * transfers for split transactions, so we only need to apply this @@ -1237,7 +1247,9 @@ static void dwc2_hc_nak_intr(struct dwc2_hsotg *hsotg, qtd->error_count = 0; qtd->complete_split = 0; qtd->num_naks++; - qtd->qh->want_wait = qtd->num_naks >= DWC2_NAKS_BEFORE_DELAY; + qtd->qh->want_wait = qtd->num_naks >= DWC2_NAKS_BEFORE_DELAY && + !(chan->ep_type == USB_ENDPOINT_XFER_CONTROL && + chan->ep_is_in); dwc2_halt_channel(hsotg, chan, qtd, DWC2_HC_XFER_NAK); goto handle_nak_done; } @@ -1554,10 +1566,10 @@ static void dwc2_hc_ahberr_intr(struct dwc2_hsotg *hsotg, dwc2_hc_handle_tt_clear(hsotg, chan, qtd); - hcchar = dwc2_readl(hsotg->regs + HCCHAR(chnum)); - hcsplt = dwc2_readl(hsotg->regs + HCSPLT(chnum)); - hctsiz = dwc2_readl(hsotg->regs + HCTSIZ(chnum)); - hc_dma = dwc2_readl(hsotg->regs + HCDMA(chnum)); + hcchar = dwc2_readl(hsotg, HCCHAR(chnum)); + hcsplt = dwc2_readl(hsotg, HCSPLT(chnum)); + hctsiz = dwc2_readl(hsotg, HCTSIZ(chnum)); + hc_dma = dwc2_readl(hsotg, HCDMA(chnum)); dev_err(hsotg->dev, "AHB ERROR, Channel %d\n", chnum); dev_err(hsotg->dev, " hcchar 0x%08x, hcsplt 0x%08x\n", hcchar, hcsplt); @@ -1769,10 +1781,10 @@ static bool dwc2_halt_status_ok(struct dwc2_hsotg *hsotg, * This code is here only as a check. This condition should * never happen. Ignore the halt if it does occur. */ - hcchar = dwc2_readl(hsotg->regs + HCCHAR(chnum)); - hctsiz = dwc2_readl(hsotg->regs + HCTSIZ(chnum)); - hcintmsk = dwc2_readl(hsotg->regs + HCINTMSK(chnum)); - hcsplt = dwc2_readl(hsotg->regs + HCSPLT(chnum)); + hcchar = dwc2_readl(hsotg, HCCHAR(chnum)); + hctsiz = dwc2_readl(hsotg, HCTSIZ(chnum)); + hcintmsk = dwc2_readl(hsotg, HCINTMSK(chnum)); + hcsplt = dwc2_readl(hsotg, HCSPLT(chnum)); dev_dbg(hsotg->dev, "%s: chan->halt_status DWC2_HC_XFER_NO_HALT_STATUS,\n", __func__); @@ -1796,7 +1808,7 @@ static bool dwc2_halt_status_ok(struct dwc2_hsotg *hsotg, * when the halt interrupt occurs. Halt the channel again if it does * occur. */ - hcchar = dwc2_readl(hsotg->regs + HCCHAR(chnum)); + hcchar = dwc2_readl(hsotg, HCCHAR(chnum)); if (hcchar & HCCHAR_CHDIS) { dev_warn(hsotg->dev, "%s: hcchar.chdis set unexpectedly, hcchar 0x%08x, trying to halt again\n", @@ -1856,7 +1868,7 @@ static void dwc2_hc_chhltd_intr_dma(struct dwc2_hsotg *hsotg, return; } - hcintmsk = dwc2_readl(hsotg->regs + HCINTMSK(chnum)); + hcintmsk = dwc2_readl(hsotg, HCINTMSK(chnum)); if (chan->hcint & HCINTMSK_XFERCOMPL) { /* @@ -1951,7 +1963,7 @@ static void dwc2_hc_chhltd_intr_dma(struct dwc2_hsotg *hsotg, dev_err(hsotg->dev, "hcint 0x%08x, intsts 0x%08x\n", chan->hcint, - dwc2_readl(hsotg->regs + GINTSTS)); + dwc2_readl(hsotg, GINTSTS)); goto error; } } @@ -2024,11 +2036,11 @@ static void dwc2_hc_n_intr(struct dwc2_hsotg *hsotg, int chnum) chan = hsotg->hc_ptr_array[chnum]; - hcint = dwc2_readl(hsotg->regs + HCINT(chnum)); - hcintmsk = dwc2_readl(hsotg->regs + HCINTMSK(chnum)); + hcint = dwc2_readl(hsotg, HCINT(chnum)); + hcintmsk = dwc2_readl(hsotg, HCINTMSK(chnum)); if (!chan) { dev_err(hsotg->dev, "## hc_ptr_array for channel is NULL ##\n"); - dwc2_writel(hcint, hsotg->regs + HCINT(chnum)); + dwc2_writel(hsotg, hcint, HCINT(chnum)); return; } @@ -2040,7 +2052,7 @@ static void dwc2_hc_n_intr(struct dwc2_hsotg *hsotg, int chnum) hcint, hcintmsk, hcint & hcintmsk); } - dwc2_writel(hcint, hsotg->regs + HCINT(chnum)); + dwc2_writel(hsotg, hcint, HCINT(chnum)); /* * If we got an interrupt after someone called @@ -2175,7 +2187,7 @@ static void dwc2_hc_intr(struct dwc2_hsotg *hsotg) int i; struct dwc2_host_chan *chan, *chan_tmp; - haint = dwc2_readl(hsotg->regs + HAINT); + haint = dwc2_readl(hsotg, HAINT); if (dbg_perio()) { dev_vdbg(hsotg->dev, "%s()\n", __func__); @@ -2259,8 +2271,8 @@ irqreturn_t dwc2_handle_hcd_intr(struct dwc2_hsotg *hsotg) "DWC OTG HCD Finished Servicing Interrupts\n"); dev_vdbg(hsotg->dev, "DWC OTG HCD gintsts=0x%08x gintmsk=0x%08x\n", - dwc2_readl(hsotg->regs + GINTSTS), - dwc2_readl(hsotg->regs + GINTMSK)); + dwc2_readl(hsotg, GINTSTS), + dwc2_readl(hsotg, GINTMSK)); } } diff --git a/drivers/usb/dwc2/hcd_queue.c b/drivers/usb/dwc2/hcd_queue.c index d7c3d6c776d8..40839591d2ec 100644 --- a/drivers/usb/dwc2/hcd_queue.c +++ b/drivers/usb/dwc2/hcd_queue.c @@ -383,7 +383,7 @@ static unsigned long *dwc2_get_ls_map(struct dwc2_hsotg *hsotg, /* Get the map and adjust if this is a multi_tt hub */ map = qh->dwc_tt->periodic_bitmaps; if (qh->dwc_tt->usb_tt->multi) - map += DWC2_ELEMENTS_PER_LS_BITMAP * qh->ttport; + map += DWC2_ELEMENTS_PER_LS_BITMAP * (qh->ttport - 1); return map; } @@ -1510,7 +1510,7 @@ static void dwc2_qh_init(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh, bool ep_is_in = !!dwc2_hcd_is_pipe_in(&urb->pipe_info); bool ep_is_isoc = (ep_type == USB_ENDPOINT_XFER_ISOC); bool ep_is_int = (ep_type == USB_ENDPOINT_XFER_INT); - u32 hprt = dwc2_readl(hsotg->regs + HPRT0); + u32 hprt = dwc2_readl(hsotg, HPRT0); u32 prtspd = (hprt & HPRT0_SPD_MASK) >> HPRT0_SPD_SHIFT; bool do_split = (prtspd == HPRT0_SPD_HIGH_SPEED && dev_speed != USB_SPEED_HIGH); @@ -1696,6 +1696,9 @@ void dwc2_hcd_qh_free(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh) if (qh->desc_list) dwc2_hcd_qh_free_ddma(hsotg, qh); + else if (hsotg->unaligned_cache && qh->dw_align_buf) + kmem_cache_free(hsotg->unaligned_cache, qh->dw_align_buf); + kfree(qh); } @@ -1744,9 +1747,9 @@ int dwc2_hcd_qh_add(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh) if (status) return status; if (!hsotg->periodic_qh_count) { - intr_mask = dwc2_readl(hsotg->regs + GINTMSK); + intr_mask = dwc2_readl(hsotg, GINTMSK); intr_mask |= GINTSTS_SOF; - dwc2_writel(intr_mask, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, intr_mask, GINTMSK); } hsotg->periodic_qh_count++; @@ -1785,9 +1788,9 @@ void dwc2_hcd_qh_unlink(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh) hsotg->periodic_qh_count--; if (!hsotg->periodic_qh_count && !hsotg->params.dma_desc_enable) { - intr_mask = dwc2_readl(hsotg->regs + GINTMSK); + intr_mask = dwc2_readl(hsotg, GINTMSK); intr_mask &= ~GINTSTS_SOF; - dwc2_writel(intr_mask, hsotg->regs + GINTMSK); + dwc2_writel(hsotg, intr_mask, GINTMSK); } } diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c index af075d4da895..bf7052e037d6 100644 --- a/drivers/usb/dwc2/params.c +++ b/drivers/usb/dwc2/params.c @@ -47,7 +47,6 @@ static void dwc2_set_bcm_params(struct dwc2_hsotg *hsotg) p->max_transfer_size = 65535; p->max_packet_count = 511; p->ahbcfg = 0x10; - p->uframe_sched = false; } static void dwc2_set_his_params(struct dwc2_hsotg *hsotg) @@ -68,7 +67,6 @@ static void dwc2_set_his_params(struct dwc2_hsotg *hsotg) p->reload_ctl = false; p->ahbcfg = GAHBCFG_HBSTLEN_INCR16 << GAHBCFG_HBSTLEN_SHIFT; - p->uframe_sched = false; p->change_speed_quirk = true; p->power_down = false; } @@ -112,7 +110,6 @@ static void dwc2_set_amlogic_params(struct dwc2_hsotg *hsotg) p->phy_type = DWC2_PHY_TYPE_PARAM_UTMI; p->ahbcfg = GAHBCFG_HBSTLEN_INCR8 << GAHBCFG_HBSTLEN_SHIFT; - p->uframe_sched = false; } static void dwc2_set_amcc_params(struct dwc2_hsotg *hsotg) @@ -134,7 +131,6 @@ static void dwc2_set_stm32f4x9_fsotg_params(struct dwc2_hsotg *hsotg) p->max_packet_count = 256; p->phy_type = DWC2_PHY_TYPE_PARAM_FS; p->i2c_enable = false; - p->uframe_sched = false; p->activate_stm_fs_transceiver = true; } @@ -654,8 +650,8 @@ static void dwc2_get_host_hwparams(struct dwc2_hsotg *hsotg) dwc2_force_mode(hsotg, true); - gnptxfsiz = dwc2_readl(hsotg->regs + GNPTXFSIZ); - hptxfsiz = dwc2_readl(hsotg->regs + HPTXFSIZ); + gnptxfsiz = dwc2_readl(hsotg, GNPTXFSIZ); + hptxfsiz = dwc2_readl(hsotg, HPTXFSIZ); hw->host_nperio_tx_fifo_size = (gnptxfsiz & FIFOSIZE_DEPTH_MASK) >> FIFOSIZE_DEPTH_SHIFT; @@ -679,13 +675,13 @@ static void dwc2_get_dev_hwparams(struct dwc2_hsotg *hsotg) dwc2_force_mode(hsotg, false); - gnptxfsiz = dwc2_readl(hsotg->regs + GNPTXFSIZ); + gnptxfsiz = dwc2_readl(hsotg, GNPTXFSIZ); fifo_count = dwc2_hsotg_tx_fifo_count(hsotg); for (fifo = 1; fifo <= fifo_count; fifo++) { hw->g_tx_fifo_size[fifo] = - (dwc2_readl(hsotg->regs + DPTXFSIZN(fifo)) & + (dwc2_readl(hsotg, DPTXFSIZN(fifo)) & FIFOSIZE_DEPTH_MASK) >> FIFOSIZE_DEPTH_SHIFT; } @@ -713,7 +709,7 @@ int dwc2_get_hwparams(struct dwc2_hsotg *hsotg) * 0x45f4xxxx, 0x5531xxxx or 0x5532xxxx */ - hw->snpsid = dwc2_readl(hsotg->regs + GSNPSID); + hw->snpsid = dwc2_readl(hsotg, GSNPSID); if ((hw->snpsid & GSNPSID_ID_MASK) != DWC2_OTG_ID && (hw->snpsid & GSNPSID_ID_MASK) != DWC2_FS_IOT_ID && (hw->snpsid & GSNPSID_ID_MASK) != DWC2_HS_IOT_ID) { @@ -726,11 +722,11 @@ int dwc2_get_hwparams(struct dwc2_hsotg *hsotg) hw->snpsid >> 12 & 0xf, hw->snpsid >> 8 & 0xf, hw->snpsid >> 4 & 0xf, hw->snpsid & 0xf, hw->snpsid); - hwcfg1 = dwc2_readl(hsotg->regs + GHWCFG1); - hwcfg2 = dwc2_readl(hsotg->regs + GHWCFG2); - hwcfg3 = dwc2_readl(hsotg->regs + GHWCFG3); - hwcfg4 = dwc2_readl(hsotg->regs + GHWCFG4); - grxfsiz = dwc2_readl(hsotg->regs + GRXFSIZ); + hwcfg1 = dwc2_readl(hsotg, GHWCFG1); + hwcfg2 = dwc2_readl(hsotg, GHWCFG2); + hwcfg3 = dwc2_readl(hsotg, GHWCFG3); + hwcfg4 = dwc2_readl(hsotg, GHWCFG4); + grxfsiz = dwc2_readl(hsotg, GRXFSIZ); /* hwcfg1 */ hw->dev_ep_dirs = hwcfg1; diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c index 4c0819554bcd..9a53a58e676e 100644 --- a/drivers/usb/dwc2/platform.c +++ b/drivers/usb/dwc2/platform.c @@ -353,6 +353,23 @@ static void dwc2_driver_shutdown(struct platform_device *dev) } /** + * dwc2_check_core_endianness() - Returns true if core and AHB have + * opposite endianness. + * @hsotg: Programming view of the DWC_otg controller. + */ +static bool dwc2_check_core_endianness(struct dwc2_hsotg *hsotg) +{ + u32 snpsid; + + snpsid = ioread32(hsotg->regs + GSNPSID); + if ((snpsid & GSNPSID_ID_MASK) == DWC2_OTG_ID || + (snpsid & GSNPSID_ID_MASK) == DWC2_FS_IOT_ID || + (snpsid & GSNPSID_ID_MASK) == DWC2_HS_IOT_ID) + return false; + return true; +} + +/** * dwc2_driver_probe() - Called when the DWC_otg core is bound to the DWC_otg * driver * @@ -395,6 +412,8 @@ static int dwc2_driver_probe(struct platform_device *dev) dev_dbg(&dev->dev, "mapped PA %08lx to VA %p\n", (unsigned long)res->start, hsotg->regs); + hsotg->needs_byte_swap = dwc2_check_core_endianness(hsotg); + retval = dwc2_lowlevel_hw_init(hsotg); if (retval) return retval; diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig index 451012ea1294..518ead12458d 100644 --- a/drivers/usb/dwc3/Kconfig +++ b/drivers/usb/dwc3/Kconfig @@ -74,11 +74,16 @@ config USB_DWC3_PCI depends on USB_PCI && ACPI default USB_DWC3 help - If you're using the DesignWare Core IP with a PCIe, please say - 'Y' or 'M' here. + If you're using the DesignWare Core IP with a PCIe (but not HAPS + platform), please say 'Y' or 'M' here. - One such PCIe-based platform is Synopsys' PCIe HAPS model of - this IP. +config USB_DWC3_HAPS + tristate "Synopsys PCIe-based HAPS Platforms" + depends on USB_PCI + default USB_DWC3 + help + If you're using the DesignWare Core IP with a Synopsys PCIe HAPS + platform, please say 'Y' or 'M' here. config USB_DWC3_KEYSTONE tristate "Texas Instruments Keystone2 Platforms" diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile index 5c07d8f925e0..6e3ef6144e5d 100644 --- a/drivers/usb/dwc3/Makefile +++ b/drivers/usb/dwc3/Makefile @@ -45,6 +45,7 @@ endif obj-$(CONFIG_USB_DWC3_OMAP) += dwc3-omap.o obj-$(CONFIG_USB_DWC3_EXYNOS) += dwc3-exynos.o obj-$(CONFIG_USB_DWC3_PCI) += dwc3-pci.o +obj-$(CONFIG_USB_DWC3_HAPS) += dwc3-haps.o obj-$(CONFIG_USB_DWC3_KEYSTONE) += dwc3-keystone.o obj-$(CONFIG_USB_DWC3_OF_SIMPLE) += dwc3-of-simple.o obj-$(CONFIG_USB_DWC3_ST) += dwc3-st.o diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index ea91310113b9..88c80fcc39f5 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -78,6 +78,14 @@ static int dwc3_get_dr_mode(struct dwc3 *dwc) mode = USB_DR_MODE_HOST; else if (IS_ENABLED(CONFIG_USB_DWC3_GADGET)) mode = USB_DR_MODE_PERIPHERAL; + + /* + * dwc_usb31 does not support OTG mode. If the controller + * supports DRD but the dr_mode is not specified or set to OTG, + * then set the mode to peripheral. + */ + if (mode == USB_DR_MODE_OTG && dwc3_is_usb31(dwc)) + mode = USB_DR_MODE_PERIPHERAL; } if (mode != dwc->dr_mode) { @@ -778,6 +786,98 @@ static void dwc3_core_setup_global_control(struct dwc3 *dwc) static int dwc3_core_get_phy(struct dwc3 *dwc); static int dwc3_core_ulpi_init(struct dwc3 *dwc); +/* set global incr burst type configuration registers */ +static void dwc3_set_incr_burst_type(struct dwc3 *dwc) +{ + struct device *dev = dwc->dev; + /* incrx_mode : for INCR burst type. */ + bool incrx_mode; + /* incrx_size : for size of INCRX burst. */ + u32 incrx_size; + u32 *vals; + u32 cfg; + int ntype; + int ret; + int i; + + cfg = dwc3_readl(dwc->regs, DWC3_GSBUSCFG0); + + /* + * Handle property "snps,incr-burst-type-adjustment". + * Get the number of value from this property: + * result <= 0, means this property is not supported. + * result = 1, means INCRx burst mode supported. + * result > 1, means undefined length burst mode supported. + */ + ntype = device_property_read_u32_array(dev, + "snps,incr-burst-type-adjustment", NULL, 0); + if (ntype <= 0) + return; + + vals = kcalloc(ntype, sizeof(u32), GFP_KERNEL); + if (!vals) { + dev_err(dev, "Error to get memory\n"); + return; + } + + /* Get INCR burst type, and parse it */ + ret = device_property_read_u32_array(dev, + "snps,incr-burst-type-adjustment", vals, ntype); + if (ret) { + dev_err(dev, "Error to get property\n"); + return; + } + + incrx_size = *vals; + + if (ntype > 1) { + /* INCRX (undefined length) burst mode */ + incrx_mode = INCRX_UNDEF_LENGTH_BURST_MODE; + for (i = 1; i < ntype; i++) { + if (vals[i] > incrx_size) + incrx_size = vals[i]; + } + } else { + /* INCRX burst mode */ + incrx_mode = INCRX_BURST_MODE; + } + + /* Enable Undefined Length INCR Burst and Enable INCRx Burst */ + cfg &= ~DWC3_GSBUSCFG0_INCRBRST_MASK; + if (incrx_mode) + cfg |= DWC3_GSBUSCFG0_INCRBRSTENA; + switch (incrx_size) { + case 256: + cfg |= DWC3_GSBUSCFG0_INCR256BRSTENA; + break; + case 128: + cfg |= DWC3_GSBUSCFG0_INCR128BRSTENA; + break; + case 64: + cfg |= DWC3_GSBUSCFG0_INCR64BRSTENA; + break; + case 32: + cfg |= DWC3_GSBUSCFG0_INCR32BRSTENA; + break; + case 16: + cfg |= DWC3_GSBUSCFG0_INCR16BRSTENA; + break; + case 8: + cfg |= DWC3_GSBUSCFG0_INCR8BRSTENA; + break; + case 4: + cfg |= DWC3_GSBUSCFG0_INCR4BRSTENA; + break; + case 1: + break; + default: + dev_err(dev, "Invalid property\n"); + break; + } + + dwc3_writel(dwc->regs, DWC3_GSBUSCFG0, cfg); +} + /** * dwc3_core_init - Low-level initialization of DWC3 Core * @dwc: Pointer to our controller context structure @@ -840,6 +940,8 @@ static int dwc3_core_init(struct dwc3 *dwc) /* Adjust Frame Length */ dwc3_frame_length_adjustment(dwc); + dwc3_set_incr_burst_type(dwc); + usb_phy_set_suspend(dwc->usb2_phy, 0); usb_phy_set_suspend(dwc->usb3_phy, 0); ret = phy_power_on(dwc->usb2_generic_phy); @@ -883,6 +985,22 @@ static int dwc3_core_init(struct dwc3 *dwc) dwc3_writel(dwc->regs, DWC3_GUCTL1, reg); } + if (dwc->dr_mode == USB_DR_MODE_HOST || + dwc->dr_mode == USB_DR_MODE_OTG) { + reg = dwc3_readl(dwc->regs, DWC3_GUCTL); + + /* + * Enable Auto retry Feature to make the controller operating in + * Host mode on seeing transaction errors(CRC errors or internal + * overrun scenerios) on IN transfers to reply to the device + * with a non-terminating retry ACK (i.e, an ACK transcation + * packet with Retry=1 & Nump != 0) + */ + reg |= DWC3_GUCTL_HSTINAUTORETRY; + + dwc3_writel(dwc->regs, DWC3_GUCTL, reg); + } + /* * Must config both number of packets and max burst settings to enable * RX and/or TX threshold. @@ -1272,7 +1390,6 @@ static int dwc3_probe(struct platform_device *pdev) if (!dwc->clks) return -ENOMEM; - dwc->num_clks = ARRAY_SIZE(dwc3_core_clks); dwc->dev = dev; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -1307,15 +1424,19 @@ static int dwc3_probe(struct platform_device *pdev) if (IS_ERR(dwc->reset)) return PTR_ERR(dwc->reset); - ret = clk_bulk_get(dev, dwc->num_clks, dwc->clks); - if (ret == -EPROBE_DEFER) - return ret; - /* - * Clocks are optional, but new DT platforms should support all clocks - * as required by the DT-binding. - */ - if (ret) - dwc->num_clks = 0; + if (dev->of_node) { + dwc->num_clks = ARRAY_SIZE(dwc3_core_clks); + + ret = clk_bulk_get(dev, dwc->num_clks, dwc->clks); + if (ret == -EPROBE_DEFER) + return ret; + /* + * Clocks are optional, but new DT platforms should support all + * clocks as required by the DT-binding. + */ + if (ret) + dwc->num_clks = 0; + } ret = reset_control_deassert(dwc->reset); if (ret) diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 285ce0ef3b91..5bfb62533e0f 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -163,6 +163,17 @@ /* Bit fields */ +/* Global SoC Bus Configuration INCRx Register 0 */ +#define DWC3_GSBUSCFG0_INCR256BRSTENA (1 << 7) /* INCR256 burst */ +#define DWC3_GSBUSCFG0_INCR128BRSTENA (1 << 6) /* INCR128 burst */ +#define DWC3_GSBUSCFG0_INCR64BRSTENA (1 << 5) /* INCR64 burst */ +#define DWC3_GSBUSCFG0_INCR32BRSTENA (1 << 4) /* INCR32 burst */ +#define DWC3_GSBUSCFG0_INCR16BRSTENA (1 << 3) /* INCR16 burst */ +#define DWC3_GSBUSCFG0_INCR8BRSTENA (1 << 2) /* INCR8 burst */ +#define DWC3_GSBUSCFG0_INCR4BRSTENA (1 << 1) /* INCR4 burst */ +#define DWC3_GSBUSCFG0_INCRBRSTENA (1 << 0) /* undefined length enable */ +#define DWC3_GSBUSCFG0_INCRBRST_MASK 0xff + /* Global Debug Queue/FIFO Space Available Register */ #define DWC3_GDBGFIFOSPACE_NUM(n) ((n) & 0x1f) #define DWC3_GDBGFIFOSPACE_TYPE(n) (((n) << 5) & 0x1e0) @@ -227,6 +238,9 @@ #define DWC3_GCTL_GBLHIBERNATIONEN BIT(1) #define DWC3_GCTL_DSBLCLKGTNG BIT(0) +/* Global User Control Register */ +#define DWC3_GUCTL_HSTINAUTORETRY BIT(14) + /* Global User Control 1 Register */ #define DWC3_GUCTL1_TX_IPGAP_LINECHECK_DIS BIT(28) #define DWC3_GUCTL1_DEV_L1_EXIT_BY_HW BIT(24) @@ -1157,6 +1171,9 @@ struct dwc3 { u16 imod_interval; }; +#define INCRX_BURST_MODE 0 +#define INCRX_UNDEF_LENGTH_BURST_MODE 1 + #define work_to_dwc(w) (container_of((w), struct dwc3, drd_work)) /* -------------------------------------------------------------------------- */ diff --git a/drivers/usb/dwc3/dwc3-haps.c b/drivers/usb/dwc3/dwc3-haps.c new file mode 100644 index 000000000000..c9cc33881bef --- /dev/null +++ b/drivers/usb/dwc3/dwc3-haps.c @@ -0,0 +1,137 @@ +// SPDX-License-Identifier: GPL-2.0 +/** + * dwc3-haps.c - Synopsys HAPS PCI Specific glue layer + * + * Copyright (C) 2018 Synopsys, Inc. + * + * Authors: Thinh Nguyen <thinhn@synopsys.com>, + * John Youn <johnyoun@synopsys.com> + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/pci.h> +#include <linux/platform_device.h> +#include <linux/property.h> + +#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd +#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI 0xabce +#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31 0xabcf + +/** + * struct dwc3_haps - Driver private structure + * @dwc3: child dwc3 platform_device + * @pci: our link to PCI bus + */ +struct dwc3_haps { + struct platform_device *dwc3; + struct pci_dev *pci; +}; + +static const struct property_entry initial_properties[] = { + PROPERTY_ENTRY_BOOL("snps,usb3_lpm_capable"), + PROPERTY_ENTRY_BOOL("snps,has-lpm-erratum"), + PROPERTY_ENTRY_BOOL("snps,dis_enblslpm_quirk"), + PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"), + { }, +}; + +static int dwc3_haps_probe(struct pci_dev *pci, + const struct pci_device_id *id) +{ + struct dwc3_haps *dwc; + struct device *dev = &pci->dev; + struct resource res[2]; + int ret; + + ret = pcim_enable_device(pci); + if (ret) { + dev_err(dev, "failed to enable pci device\n"); + return -ENODEV; + } + + pci_set_master(pci); + + dwc = devm_kzalloc(dev, sizeof(*dwc), GFP_KERNEL); + if (!dwc) + return -ENOMEM; + + dwc->dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO); + if (!dwc->dwc3) + return -ENOMEM; + + memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res)); + + res[0].start = pci_resource_start(pci, 0); + res[0].end = pci_resource_end(pci, 0); + res[0].name = "dwc_usb3"; + res[0].flags = IORESOURCE_MEM; + + res[1].start = pci->irq; + res[1].name = "dwc_usb3"; + res[1].flags = IORESOURCE_IRQ; + + ret = platform_device_add_resources(dwc->dwc3, res, ARRAY_SIZE(res)); + if (ret) { + dev_err(dev, "couldn't add resources to dwc3 device\n"); + goto err; + } + + dwc->pci = pci; + dwc->dwc3->dev.parent = dev; + + ret = platform_device_add_properties(dwc->dwc3, initial_properties); + if (ret) + goto err; + + ret = platform_device_add(dwc->dwc3); + if (ret) { + dev_err(dev, "failed to register dwc3 device\n"); + goto err; + } + + pci_set_drvdata(pci, dwc); + + return 0; +err: + platform_device_put(dwc->dwc3); + return ret; +} + +static void dwc3_haps_remove(struct pci_dev *pci) +{ + struct dwc3_haps *dwc = pci_get_drvdata(pci); + + platform_device_unregister(dwc->dwc3); +} + +static const struct pci_device_id dwc3_haps_id_table[] = { + { + PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, + PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3), + }, + { + PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, + PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI), + }, + { + PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, + PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31), + }, + { } /* Terminating Entry */ +}; +MODULE_DEVICE_TABLE(pci, dwc3_haps_id_table); + +static struct pci_driver dwc3_haps_driver = { + .name = "dwc3-haps", + .id_table = dwc3_haps_id_table, + .probe = dwc3_haps_probe, + .remove = dwc3_haps_remove, +}; + +MODULE_AUTHOR("Thinh Nguyen <thinhn@synopsys.com>"); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("Synopsys HAPS PCI Glue Layer"); + +module_pci_driver(dwc3_haps_driver); diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c index 6b3ccd542bd7..40bf9e0bbc59 100644 --- a/drivers/usb/dwc3/dwc3-of-simple.c +++ b/drivers/usb/dwc3/dwc3-of-simple.c @@ -28,6 +28,7 @@ struct dwc3_of_simple { int num_clocks; struct reset_control *resets; bool pulse_resets; + bool need_reset; }; static int dwc3_of_simple_clk_init(struct dwc3_of_simple *simple, int count) @@ -93,6 +94,13 @@ static int dwc3_of_simple_probe(struct platform_device *pdev) platform_set_drvdata(pdev, simple); simple->dev = dev; + /* + * Some controllers need to toggle the usb3-otg reset before trying to + * initialize the PHY, otherwise the PHY times out. + */ + if (of_device_is_compatible(np, "rockchip,rk3399-dwc3")) + simple->need_reset = true; + if (of_device_is_compatible(np, "amlogic,meson-axg-dwc3") || of_device_is_compatible(np, "amlogic,meson-gxl-dwc3")) { shared_resets = true; @@ -165,8 +173,9 @@ static int dwc3_of_simple_remove(struct platform_device *pdev) reset_control_put(simple->resets); - pm_runtime_put_sync(dev); pm_runtime_disable(dev); + pm_runtime_put_noidle(dev); + pm_runtime_set_suspended(dev); return 0; } @@ -200,9 +209,30 @@ static int dwc3_of_simple_runtime_resume(struct device *dev) return 0; } + +static int dwc3_of_simple_suspend(struct device *dev) +{ + struct dwc3_of_simple *simple = dev_get_drvdata(dev); + + if (simple->need_reset) + reset_control_assert(simple->resets); + + return 0; +} + +static int dwc3_of_simple_resume(struct device *dev) +{ + struct dwc3_of_simple *simple = dev_get_drvdata(dev); + + if (simple->need_reset) + reset_control_deassert(simple->resets); + + return 0; +} #endif static const struct dev_pm_ops dwc3_of_simple_dev_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(dwc3_of_simple_suspend, dwc3_of_simple_resume) SET_RUNTIME_PM_OPS(dwc3_of_simple_runtime_suspend, dwc3_of_simple_runtime_resume, NULL) }; diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index c961a94d136b..5edd79470368 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -16,12 +16,10 @@ #include <linux/pm_runtime.h> #include <linux/platform_device.h> #include <linux/gpio/consumer.h> +#include <linux/gpio/machine.h> #include <linux/acpi.h> #include <linux/delay.h> -#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd -#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI 0xabce -#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31 0xabcf #define PCI_DEVICE_ID_INTEL_BYT 0x0f37 #define PCI_DEVICE_ID_INTEL_MRFLD 0x119e #define PCI_DEVICE_ID_INTEL_BSW 0x22b7 @@ -34,18 +32,24 @@ #define PCI_DEVICE_ID_INTEL_GLK 0x31aa #define PCI_DEVICE_ID_INTEL_CNPLP 0x9dee #define PCI_DEVICE_ID_INTEL_CNPH 0xa36e +#define PCI_DEVICE_ID_INTEL_ICLLP 0x34ee #define PCI_INTEL_BXT_DSM_GUID "732b85d5-b7a7-4a1b-9ba0-4bbd00ffd511" #define PCI_INTEL_BXT_FUNC_PMU_PWR 4 #define PCI_INTEL_BXT_STATE_D0 0 #define PCI_INTEL_BXT_STATE_D3 3 +#define GP_RWBAR 1 +#define GP_RWREG1 0xa0 +#define GP_RWREG1_ULPI_REFCLK_DISABLE (1 << 17) + /** * struct dwc3_pci - Driver private structure * @dwc3: child dwc3 platform_device * @pci: our link to PCI bus * @guid: _DSM GUID * @has_dsm_for_pm: true for devices which need to run _DSM on runtime PM + * @wakeup_work: work for asynchronous resume */ struct dwc3_pci { struct platform_device *dwc3; @@ -66,52 +70,74 @@ static const struct acpi_gpio_mapping acpi_dwc3_byt_gpios[] = { { }, }; -static int dwc3_pci_quirks(struct dwc3_pci *dwc) +static struct gpiod_lookup_table platform_bytcr_gpios = { + .dev_id = "0000:00:16.0", + .table = { + GPIO_LOOKUP("INT33FC:00", 54, "reset", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("INT33FC:02", 14, "cs", GPIO_ACTIVE_HIGH), + {} + }, +}; + +static int dwc3_byt_enable_ulpi_refclock(struct pci_dev *pci) { - struct platform_device *dwc3 = dwc->dwc3; - struct pci_dev *pdev = dwc->pci; + void __iomem *reg; + u32 value; + + reg = pcim_iomap(pci, GP_RWBAR, 0); + if (IS_ERR(reg)) + return PTR_ERR(reg); + + value = readl(reg + GP_RWREG1); + if (!(value & GP_RWREG1_ULPI_REFCLK_DISABLE)) + goto unmap; /* ULPI refclk already enabled */ + + value &= ~GP_RWREG1_ULPI_REFCLK_DISABLE; + writel(value, reg + GP_RWREG1); + /* This comes from the Intel Android x86 tree w/o any explanation */ + msleep(100); +unmap: + pcim_iounmap(pci, reg); + return 0; +} - if (pdev->vendor == PCI_VENDOR_ID_AMD && - pdev->device == PCI_DEVICE_ID_AMD_NL_USB) { - struct property_entry properties[] = { - PROPERTY_ENTRY_BOOL("snps,has-lpm-erratum"), - PROPERTY_ENTRY_U8("snps,lpm-nyet-threshold", 0xf), - PROPERTY_ENTRY_BOOL("snps,u2exit_lfps_quirk"), - PROPERTY_ENTRY_BOOL("snps,u2ss_inp3_quirk"), - PROPERTY_ENTRY_BOOL("snps,req_p1p2p3_quirk"), - PROPERTY_ENTRY_BOOL("snps,del_p1p2p3_quirk"), - PROPERTY_ENTRY_BOOL("snps,del_phy_power_chg_quirk"), - PROPERTY_ENTRY_BOOL("snps,lfps_filter_quirk"), - PROPERTY_ENTRY_BOOL("snps,rx_detect_poll_quirk"), - PROPERTY_ENTRY_BOOL("snps,tx_de_emphasis_quirk"), - PROPERTY_ENTRY_U8("snps,tx_de_emphasis", 1), - /* - * FIXME these quirks should be removed when AMD NL - * tapes out - */ - PROPERTY_ENTRY_BOOL("snps,disable_scramble_quirk"), - PROPERTY_ENTRY_BOOL("snps,dis_u3_susphy_quirk"), - PROPERTY_ENTRY_BOOL("snps,dis_u2_susphy_quirk"), - PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"), - { }, - }; - - return platform_device_add_properties(dwc3, properties); - } +static const struct property_entry dwc3_pci_intel_properties[] = { + PROPERTY_ENTRY_STRING("dr_mode", "peripheral"), + PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"), + {} +}; - if (pdev->vendor == PCI_VENDOR_ID_INTEL) { - int ret; +static const struct property_entry dwc3_pci_mrfld_properties[] = { + PROPERTY_ENTRY_STRING("dr_mode", "otg"), + PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"), + {} +}; - struct property_entry properties[] = { - PROPERTY_ENTRY_STRING("dr_mode", "peripheral"), - PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"), - { } - }; +static const struct property_entry dwc3_pci_amd_properties[] = { + PROPERTY_ENTRY_BOOL("snps,has-lpm-erratum"), + PROPERTY_ENTRY_U8("snps,lpm-nyet-threshold", 0xf), + PROPERTY_ENTRY_BOOL("snps,u2exit_lfps_quirk"), + PROPERTY_ENTRY_BOOL("snps,u2ss_inp3_quirk"), + PROPERTY_ENTRY_BOOL("snps,req_p1p2p3_quirk"), + PROPERTY_ENTRY_BOOL("snps,del_p1p2p3_quirk"), + PROPERTY_ENTRY_BOOL("snps,del_phy_power_chg_quirk"), + PROPERTY_ENTRY_BOOL("snps,lfps_filter_quirk"), + PROPERTY_ENTRY_BOOL("snps,rx_detect_poll_quirk"), + PROPERTY_ENTRY_BOOL("snps,tx_de_emphasis_quirk"), + PROPERTY_ENTRY_U8("snps,tx_de_emphasis", 1), + /* FIXME these quirks should be removed when AMD NL tapes out */ + PROPERTY_ENTRY_BOOL("snps,disable_scramble_quirk"), + PROPERTY_ENTRY_BOOL("snps,dis_u3_susphy_quirk"), + PROPERTY_ENTRY_BOOL("snps,dis_u2_susphy_quirk"), + PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"), + {} +}; - ret = platform_device_add_properties(dwc3, properties); - if (ret < 0) - return ret; +static int dwc3_pci_quirks(struct dwc3_pci *dwc) +{ + struct pci_dev *pdev = dwc->pci; + if (pdev->vendor == PCI_VENDOR_ID_INTEL) { if (pdev->device == PCI_DEVICE_ID_INTEL_BXT || pdev->device == PCI_DEVICE_ID_INTEL_BXT_M) { guid_parse(PCI_INTEL_BXT_DSM_GUID, &dwc->guid); @@ -120,6 +146,12 @@ static int dwc3_pci_quirks(struct dwc3_pci *dwc) if (pdev->device == PCI_DEVICE_ID_INTEL_BYT) { struct gpio_desc *gpio; + int ret; + + /* On BYT the FW does not always enable the refclock */ + ret = dwc3_byt_enable_ulpi_refclock(pdev); + if (ret) + return ret; ret = devm_acpi_dev_add_driver_gpios(&pdev->dev, acpi_dwc3_byt_gpios); @@ -127,44 +159,36 @@ static int dwc3_pci_quirks(struct dwc3_pci *dwc) dev_dbg(&pdev->dev, "failed to add mapping table\n"); /* + * A lot of BYT devices lack ACPI resource entries for + * the GPIOs, add a fallback mapping to the reference + * design GPIOs which all boards seem to use. + */ + gpiod_add_lookup_table(&platform_bytcr_gpios); + + /* * These GPIOs will turn on the USB2 PHY. Note that we have to * put the gpio descriptors again here because the phy driver * might want to grab them, too. */ - gpio = gpiod_get_optional(&pdev->dev, "cs", GPIOD_OUT_LOW); + gpio = devm_gpiod_get_optional(&pdev->dev, "cs", + GPIOD_OUT_LOW); if (IS_ERR(gpio)) return PTR_ERR(gpio); gpiod_set_value_cansleep(gpio, 1); - gpiod_put(gpio); - gpio = gpiod_get_optional(&pdev->dev, "reset", GPIOD_OUT_LOW); + gpio = devm_gpiod_get_optional(&pdev->dev, "reset", + GPIOD_OUT_LOW); if (IS_ERR(gpio)) return PTR_ERR(gpio); if (gpio) { gpiod_set_value_cansleep(gpio, 1); - gpiod_put(gpio); usleep_range(10000, 11000); } } } - if (pdev->vendor == PCI_VENDOR_ID_SYNOPSYS && - (pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 || - pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI || - pdev->device == PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31)) { - struct property_entry properties[] = { - PROPERTY_ENTRY_BOOL("snps,usb3_lpm_capable"), - PROPERTY_ENTRY_BOOL("snps,has-lpm-erratum"), - PROPERTY_ENTRY_BOOL("snps,dis_enblslpm_quirk"), - PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"), - { }, - }; - - return platform_device_add_properties(dwc3, properties); - } - return 0; } @@ -184,9 +208,9 @@ static void dwc3_pci_resume_work(struct work_struct *work) } #endif -static int dwc3_pci_probe(struct pci_dev *pci, - const struct pci_device_id *id) +static int dwc3_pci_probe(struct pci_dev *pci, const struct pci_device_id *id) { + struct property_entry *p = (struct property_entry *)id->driver_data; struct dwc3_pci *dwc; struct resource res[2]; int ret; @@ -229,6 +253,10 @@ static int dwc3_pci_probe(struct pci_dev *pci, dwc->dwc3->dev.parent = dev; ACPI_COMPANION_SET(&dwc->dwc3->dev, ACPI_COMPANION(dev)); + ret = platform_device_add_properties(dwc->dwc3, p); + if (ret < 0) + return ret; + ret = dwc3_pci_quirks(dwc); if (ret) goto err; @@ -256,6 +284,7 @@ static void dwc3_pci_remove(struct pci_dev *pci) { struct dwc3_pci *dwc = pci_get_drvdata(pci); + gpiod_remove_lookup_table(&platform_bytcr_gpios); #ifdef CONFIG_PM cancel_work_sync(&dwc->wakeup_work); #endif @@ -265,31 +294,47 @@ static void dwc3_pci_remove(struct pci_dev *pci) } static const struct pci_device_id dwc3_pci_id_table[] = { - { - PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, - PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3), - }, - { - PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, - PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3_AXI), - }, - { - PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, - PCI_DEVICE_ID_SYNOPSYS_HAPSUSB31), - }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BSW), }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT), }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MRFLD), }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SPTLP), }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SPTH), }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BXT), }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BXT_M), }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_APL), }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KBP), }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_GLK), }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CNPLP), }, - { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CNPH), }, - { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB), }, + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_BSW), + (kernel_ulong_t) &dwc3_pci_intel_properties }, + + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_BYT), + (kernel_ulong_t) &dwc3_pci_intel_properties, }, + + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_MRFLD), + (kernel_ulong_t) &dwc3_pci_mrfld_properties, }, + + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SPTLP), + (kernel_ulong_t) &dwc3_pci_intel_properties, }, + + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_SPTH), + (kernel_ulong_t) &dwc3_pci_intel_properties, }, + + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_BXT), + (kernel_ulong_t) &dwc3_pci_intel_properties, }, + + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_BXT_M), + (kernel_ulong_t) &dwc3_pci_intel_properties, }, + + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_APL), + (kernel_ulong_t) &dwc3_pci_intel_properties, }, + + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_KBP), + (kernel_ulong_t) &dwc3_pci_intel_properties, }, + + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_GLK), + (kernel_ulong_t) &dwc3_pci_intel_properties, }, + + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_CNPLP), + (kernel_ulong_t) &dwc3_pci_intel_properties, }, + + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_CNPH), + (kernel_ulong_t) &dwc3_pci_intel_properties, }, + + { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICLLP), + (kernel_ulong_t) &dwc3_pci_intel_properties, }, + + { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_NL_USB), + (kernel_ulong_t) &dwc3_pci_amd_properties, }, { } /* Terminating Entry */ }; MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table); diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index b0e67ab2f98c..a6d0203e40b6 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -490,6 +490,7 @@ static int dwc3_qcom_probe(struct platform_device *pdev) qcom->dwc3 = of_find_device_by_node(dwc3_np); if (!qcom->dwc3) { dev_err(&pdev->dev, "failed to get dwc3 platform device\n"); + ret = -ENODEV; goto depopulate; } @@ -547,8 +548,7 @@ static int dwc3_qcom_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM_SLEEP -static int dwc3_qcom_pm_suspend(struct device *dev) +static int __maybe_unused dwc3_qcom_pm_suspend(struct device *dev) { struct dwc3_qcom *qcom = dev_get_drvdata(dev); int ret = 0; @@ -560,7 +560,7 @@ static int dwc3_qcom_pm_suspend(struct device *dev) return ret; } -static int dwc3_qcom_pm_resume(struct device *dev) +static int __maybe_unused dwc3_qcom_pm_resume(struct device *dev) { struct dwc3_qcom *qcom = dev_get_drvdata(dev); int ret; @@ -571,23 +571,20 @@ static int dwc3_qcom_pm_resume(struct device *dev) return ret; } -#endif -#ifdef CONFIG_PM -static int dwc3_qcom_runtime_suspend(struct device *dev) +static int __maybe_unused dwc3_qcom_runtime_suspend(struct device *dev) { struct dwc3_qcom *qcom = dev_get_drvdata(dev); return dwc3_qcom_suspend(qcom); } -static int dwc3_qcom_runtime_resume(struct device *dev) +static int __maybe_unused dwc3_qcom_runtime_resume(struct device *dev) { struct dwc3_qcom *qcom = dev_get_drvdata(dev); return dwc3_qcom_resume(qcom); } -#endif static const struct dev_pm_ops dwc3_qcom_dev_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(dwc3_qcom_pm_suspend, dwc3_qcom_pm_resume) diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index c77ff50a88a2..8efde178eef4 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -973,15 +973,12 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc, ret = dwc3_ep0_start_trans(dep); } else if (IS_ALIGNED(req->request.length, dep->endpoint.maxpacket) && req->request.length && req->request.zero) { - u32 maxpacket; ret = usb_gadget_map_request_by_dev(dwc->sysdev, &req->request, dep->number); if (ret) return; - maxpacket = dep->endpoint.maxpacket; - /* prepare normal TRB */ dwc3_ep0_prepare_one_trb(dep, req->request.dma, req->request.length, diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 69bf137aab37..032ea7d709ba 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1121,7 +1121,7 @@ static void dwc3_prepare_one_trb_linear(struct dwc3_ep *dep, req->request.short_not_ok, req->request.no_interrupt); } else if (req->request.zero && req->request.length && - (IS_ALIGNED(req->request.length,dep->endpoint.maxpacket))) { + (IS_ALIGNED(req->request.length, maxp))) { struct dwc3 *dwc = dep->dwc; struct dwc3_trb *trb; diff --git a/drivers/usb/dwc3/gadget.h b/drivers/usb/dwc3/gadget.h index db610c56f1d6..2aacd1afd9ff 100644 --- a/drivers/usb/dwc3/gadget.h +++ b/drivers/usb/dwc3/gadget.h @@ -25,7 +25,7 @@ struct dwc3; #define DWC3_DEPCFG_XFER_IN_PROGRESS_EN BIT(9) #define DWC3_DEPCFG_XFER_NOT_READY_EN BIT(10) #define DWC3_DEPCFG_FIFO_ERROR_EN BIT(11) -#define DWC3_DEPCFG_STREAM_EVENT_EN BIT(12) +#define DWC3_DEPCFG_STREAM_EVENT_EN BIT(13) #define DWC3_DEPCFG_BINTERVAL_M1(n) (((n) & 0xff) << 16) #define DWC3_DEPCFG_STREAM_CAPABLE BIT(24) #define DWC3_DEPCFG_EP_NUMBER(n) (((n) & 0x1f) << 25) diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index f242c2bcea81..b8a15840b4ff 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -1719,6 +1719,8 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) */ if (w_value && !f->get_alt) break; + + spin_lock(&cdev->lock); value = f->set_alt(f, w_index, w_value); if (value == USB_GADGET_DELAYED_STATUS) { DBG(cdev, @@ -1728,6 +1730,7 @@ composite_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl) DBG(cdev, "delayed_status count %d\n", cdev->delayed_status); } + spin_unlock(&cdev->lock); break; case USB_REQ_GET_INTERFACE: if (ctrl->bRequestType != (USB_DIR_IN|USB_RECIP_INTERFACE)) @@ -1816,7 +1819,6 @@ unknown: if (cdev->use_os_string && cdev->os_desc_config && (ctrl->bRequestType & USB_TYPE_VENDOR) && ctrl->bRequest == cdev->b_vendor_code) { - struct usb_request *req; struct usb_configuration *os_desc_cfg; u8 *buf; int interface; diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c index efba66ca0719..025129942894 100644 --- a/drivers/usb/gadget/configfs.c +++ b/drivers/usb/gadget/configfs.c @@ -1217,8 +1217,8 @@ static void purge_configs_funcs(struct gadget_info *gi) list_move_tail(&f->list, &cfg->func_list); if (f->unbind) { dev_dbg(&gi->cdev.gadget->dev, - "unbind function '%s'/%p\n", - f->name, f); + "unbind function '%s'/%p\n", + f->name, f); f->unbind(c, f); } } diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c index dce9d12c7981..3ada83d81bda 100644 --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -215,6 +215,7 @@ struct ffs_io_data { struct mm_struct *mm; struct work_struct work; + struct work_struct cancellation_work; struct usb_ep *ep; struct usb_request *req; @@ -1072,22 +1073,31 @@ ffs_epfile_open(struct inode *inode, struct file *file) return 0; } +static void ffs_aio_cancel_worker(struct work_struct *work) +{ + struct ffs_io_data *io_data = container_of(work, struct ffs_io_data, + cancellation_work); + + ENTER(); + + usb_ep_dequeue(io_data->ep, io_data->req); +} + static int ffs_aio_cancel(struct kiocb *kiocb) { struct ffs_io_data *io_data = kiocb->private; - struct ffs_epfile *epfile = kiocb->ki_filp->private_data; + struct ffs_data *ffs = io_data->ffs; int value; ENTER(); - spin_lock_irq(&epfile->ffs->eps_lock); - - if (likely(io_data && io_data->ep && io_data->req)) - value = usb_ep_dequeue(io_data->ep, io_data->req); - else + if (likely(io_data && io_data->ep && io_data->req)) { + INIT_WORK(&io_data->cancellation_work, ffs_aio_cancel_worker); + queue_work(ffs->io_completion_wq, &io_data->cancellation_work); + value = -EINPROGRESS; + } else { value = -EINVAL; - - spin_unlock_irq(&epfile->ffs->eps_lock); + } return value; } @@ -3253,7 +3263,7 @@ static int ffs_func_setup(struct usb_function *f, __ffs_event_add(ffs, FUNCTIONFS_SETUP); spin_unlock_irqrestore(&ffs->ev.waitq.lock, flags); - return USB_GADGET_DELAYED_STATUS; + return creq->wLength == 0 ? USB_GADGET_DELAYED_STATUS : 0; } static bool ffs_func_req_match(struct usb_function *f, diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c index acecd13dcbd9..ca8a4b53c59f 100644 --- a/drivers/usb/gadget/function/f_mass_storage.c +++ b/drivers/usb/gadget/function/f_mass_storage.c @@ -206,7 +206,6 @@ #include <linux/fcntl.h> #include <linux/file.h> #include <linux/fs.h> -#include <linux/kref.h> #include <linux/kthread.h> #include <linux/sched/signal.h> #include <linux/limits.h> @@ -312,8 +311,6 @@ struct fsg_common { void *private_data; char inquiry_string[INQUIRY_STRING_LEN]; - - struct kref ref; }; struct fsg_dev { @@ -2551,25 +2548,11 @@ static DEVICE_ATTR(file, 0, file_show, file_store); /****************************** FSG COMMON ******************************/ -static void fsg_common_release(struct kref *ref); - static void fsg_lun_release(struct device *dev) { /* Nothing needs to be done */ } -void fsg_common_get(struct fsg_common *common) -{ - kref_get(&common->ref); -} -EXPORT_SYMBOL_GPL(fsg_common_get); - -void fsg_common_put(struct fsg_common *common) -{ - kref_put(&common->ref, fsg_common_release); -} -EXPORT_SYMBOL_GPL(fsg_common_put); - static struct fsg_common *fsg_common_setup(struct fsg_common *common) { if (!common) { @@ -2582,7 +2565,6 @@ static struct fsg_common *fsg_common_setup(struct fsg_common *common) } init_rwsem(&common->filesem); spin_lock_init(&common->lock); - kref_init(&common->ref); init_completion(&common->thread_notifier); init_waitqueue_head(&common->io_wait); init_waitqueue_head(&common->fsg_wait); @@ -2870,9 +2852,8 @@ void fsg_common_set_inquiry_string(struct fsg_common *common, const char *vn, } EXPORT_SYMBOL_GPL(fsg_common_set_inquiry_string); -static void fsg_common_release(struct kref *ref) +static void fsg_common_release(struct fsg_common *common) { - struct fsg_common *common = container_of(ref, struct fsg_common, ref); int i; /* If the thread isn't already dead, tell it to exit now */ @@ -3308,7 +3289,9 @@ static ssize_t fsg_opts_num_buffers_store(struct config_item *item, if (ret) goto end; - fsg_common_set_num_buffers(opts->common, num); + ret = fsg_common_set_num_buffers(opts->common, num); + if (ret) + goto end; ret = len; end: @@ -3344,7 +3327,7 @@ static void fsg_free_inst(struct usb_function_instance *fi) struct fsg_opts *opts; opts = fsg_opts_from_func_inst(fi); - fsg_common_put(opts->common); + fsg_common_release(opts->common); kfree(opts); } @@ -3368,7 +3351,7 @@ static struct usb_function_instance *fsg_alloc_inst(void) rc = fsg_common_set_num_buffers(opts->common, CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS); if (rc) - goto release_opts; + goto release_common; pr_info(FSG_DRIVER_DESC ", version: " FSG_DRIVER_VERSION "\n"); @@ -3391,6 +3374,8 @@ static struct usb_function_instance *fsg_alloc_inst(void) release_buffers: fsg_common_free_buffers(opts->common); +release_common: + kfree(opts->common); release_opts: kfree(opts); return ERR_PTR(rc); diff --git a/drivers/usb/gadget/function/f_mass_storage.h b/drivers/usb/gadget/function/f_mass_storage.h index 58857fcf199f..3b8c4ce2a40a 100644 --- a/drivers/usb/gadget/function/f_mass_storage.h +++ b/drivers/usb/gadget/function/f_mass_storage.h @@ -115,10 +115,6 @@ fsg_opts_from_func_inst(const struct usb_function_instance *fi) return container_of(fi, struct fsg_opts, func_inst); } -void fsg_common_get(struct fsg_common *common); - -void fsg_common_put(struct fsg_common *common); - void fsg_common_set_sysfs(struct fsg_common *common, bool sysfs); int fsg_common_set_num_buffers(struct fsg_common *common, unsigned int n); diff --git a/drivers/usb/gadget/function/f_tcm.c b/drivers/usb/gadget/function/f_tcm.c index d78dbb73bde8..106988a6661a 100644 --- a/drivers/usb/gadget/function/f_tcm.c +++ b/drivers/usb/gadget/function/f_tcm.c @@ -1071,15 +1071,16 @@ static struct usbg_cmd *usbg_get_cmd(struct f_uas *fu, { struct se_session *se_sess = tv_nexus->tvn_se_sess; struct usbg_cmd *cmd; - int tag; + int tag, cpu; - tag = percpu_ida_alloc(&se_sess->sess_tag_pool, TASK_RUNNING); + tag = sbitmap_queue_get(&se_sess->sess_tag_pool, &cpu); if (tag < 0) return ERR_PTR(-ENOMEM); cmd = &((struct usbg_cmd *)se_sess->sess_cmd_map)[tag]; memset(cmd, 0, sizeof(*cmd)); cmd->se_cmd.map_tag = tag; + cmd->se_cmd.map_cpu = cpu; cmd->se_cmd.tag = cmd->tag = scsi_tag; cmd->fu = fu; @@ -1288,7 +1289,7 @@ static void usbg_release_cmd(struct se_cmd *se_cmd) struct se_session *se_sess = se_cmd->se_sess; kfree(cmd->data_buf); - percpu_ida_free(&se_sess->sess_tag_pool, se_cmd->map_tag); + target_free_tag(se_sess, se_cmd); } static u32 usbg_sess_get_index(struct se_session *se_sess) @@ -1343,10 +1344,8 @@ static int usbg_init_nodeacl(struct se_node_acl *se_nacl, const char *name) return 0; } -static struct se_portal_group *usbg_make_tpg( - struct se_wwn *wwn, - struct config_group *group, - const char *name) +static struct se_portal_group *usbg_make_tpg(struct se_wwn *wwn, + const char *name) { struct usbg_tport *tport = container_of(wwn, struct usbg_tport, tport_wwn); @@ -1379,7 +1378,7 @@ static struct se_portal_group *usbg_make_tpg( goto unlock_dep; } else { ret = configfs_depend_item_unlocked( - group->cg_subsys, + wwn->wwn_group.cg_subsys, &opts->func_inst.group.cg_item); if (ret) goto unlock_dep; @@ -1593,7 +1592,7 @@ static int tcm_usbg_make_nexus(struct usbg_tpg *tpg, char *name) goto out_unlock; } - tv_nexus->tvn_se_sess = target_alloc_session(&tpg->se_tpg, + tv_nexus->tvn_se_sess = target_setup_session(&tpg->se_tpg, USB_G_DEFAULT_SESSION_TAGS, sizeof(struct usbg_cmd), TARGET_PROT_NORMAL, name, @@ -1639,7 +1638,7 @@ static int tcm_usbg_drop_nexus(struct usbg_tpg *tpg) /* * Release the SCSI I_T Nexus to the emulated vHost Target Port */ - transport_deregister_session(tv_nexus->tvn_se_sess); + target_remove_session(se_sess); tpg->tpg_nexus = NULL; kfree(tv_nexus); diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c index d2dc1f00180b..d582921f7257 100644 --- a/drivers/usb/gadget/function/f_uac2.c +++ b/drivers/usb/gadget/function/f_uac2.c @@ -438,14 +438,14 @@ static struct usb_descriptor_header *hs_audio_desc[] = { }; struct cntrl_cur_lay3 { - __u32 dCUR; + __le32 dCUR; }; struct cntrl_range_lay3 { - __u16 wNumSubRanges; - __u32 dMIN; - __u32 dMAX; - __u32 dRES; + __le16 wNumSubRanges; + __le32 dMIN; + __le32 dMAX; + __le32 dRES; } __packed; static void set_ep_max_packet_size(const struct f_uac2_opts *uac2_opts, @@ -559,13 +559,13 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn) agdev->out_ep = usb_ep_autoconfig(gadget, &fs_epout_desc); if (!agdev->out_ep) { dev_err(dev, "%s:%d Error!\n", __func__, __LINE__); - return ret; + return -ENODEV; } agdev->in_ep = usb_ep_autoconfig(gadget, &fs_epin_desc); if (!agdev->in_ep) { dev_err(dev, "%s:%d Error!\n", __func__, __LINE__); - return ret; + return -ENODEV; } agdev->in_ep_maxpsize = max_t(u16, @@ -703,9 +703,9 @@ in_rq_cur(struct usb_function *fn, const struct usb_ctrlrequest *cr) memset(&c, 0, sizeof(struct cntrl_cur_lay3)); if (entity_id == USB_IN_CLK_ID) - c.dCUR = p_srate; + c.dCUR = cpu_to_le32(p_srate); else if (entity_id == USB_OUT_CLK_ID) - c.dCUR = c_srate; + c.dCUR = cpu_to_le32(c_srate); value = min_t(unsigned, w_length, sizeof c); memcpy(req->buf, &c, value); @@ -742,15 +742,15 @@ in_rq_range(struct usb_function *fn, const struct usb_ctrlrequest *cr) if (control_selector == UAC2_CS_CONTROL_SAM_FREQ) { if (entity_id == USB_IN_CLK_ID) - r.dMIN = p_srate; + r.dMIN = cpu_to_le32(p_srate); else if (entity_id == USB_OUT_CLK_ID) - r.dMIN = c_srate; + r.dMIN = cpu_to_le32(c_srate); else return -EOPNOTSUPP; r.dMAX = r.dMIN; r.dRES = 0; - r.wNumSubRanges = 1; + r.wNumSubRanges = cpu_to_le16(1); value = min_t(unsigned, w_length, sizeof r); memcpy(req->buf, &r, value); diff --git a/drivers/usb/gadget/function/f_uvc.c b/drivers/usb/gadget/function/f_uvc.c index 439eba660e95..d8ce7868fe22 100644 --- a/drivers/usb/gadget/function/f_uvc.c +++ b/drivers/usb/gadget/function/f_uvc.c @@ -6,16 +6,17 @@ * Laurent Pinchart (laurent.pinchart@ideasonboard.com) */ -#include <linux/kernel.h> -#include <linux/module.h> #include <linux/device.h> #include <linux/errno.h> #include <linux/fs.h> +#include <linux/kernel.h> #include <linux/list.h> +#include <linux/module.h> #include <linux/mutex.h> #include <linux/string.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> +#include <linux/usb/g_uvc.h> #include <linux/usb/video.h> #include <linux/vmalloc.h> #include <linux/wait.h> @@ -30,6 +31,8 @@ #include "uvc_video.h" unsigned int uvc_gadget_trace_param; +module_param_named(trace, uvc_gadget_trace_param, uint, 0644); +MODULE_PARM_DESC(trace, "Trace level bitmask"); /* -------------------------------------------------------------------------- * Function descriptors @@ -410,10 +413,21 @@ uvc_function_disconnect(struct uvc_device *uvc) * USB probe and disconnect */ +static ssize_t function_name_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct uvc_device *uvc = dev_get_drvdata(dev); + + return sprintf(buf, "%s\n", uvc->func.fi->group.cg_item.ci_name); +} + +static DEVICE_ATTR_RO(function_name); + static int uvc_register_video(struct uvc_device *uvc) { struct usb_composite_dev *cdev = uvc->func.config->cdev; + int ret; /* TODO reference counting. */ uvc->vdev.v4l2_dev = &uvc->v4l2_dev; @@ -426,7 +440,17 @@ uvc_register_video(struct uvc_device *uvc) video_set_drvdata(&uvc->vdev, uvc); - return video_register_device(&uvc->vdev, VFL_TYPE_GRABBER, -1); + ret = video_register_device(&uvc->vdev, VFL_TYPE_GRABBER, -1); + if (ret < 0) + return ret; + + ret = device_create_file(&uvc->vdev.dev, &dev_attr_function_name); + if (ret < 0) { + video_unregister_device(&uvc->vdev); + return ret; + } + + return 0; } #define UVC_COPY_DESCRIPTOR(mem, dst, desc) \ @@ -864,6 +888,7 @@ static void uvc_unbind(struct usb_configuration *c, struct usb_function *f) INFO(cdev, "%s\n", __func__); + device_remove_file(&uvc->vdev.dev, &dev_attr_function_name); video_unregister_device(&uvc->vdev); v4l2_device_unregister(&uvc->v4l2_dev); diff --git a/drivers/usb/gadget/function/f_uvc.h b/drivers/usb/gadget/function/f_uvc.h index 81defe4557fe..a81a17765558 100644 --- a/drivers/usb/gadget/function/f_uvc.h +++ b/drivers/usb/gadget/function/f_uvc.h @@ -9,10 +9,7 @@ #ifndef _F_UVC_H_ #define _F_UVC_H_ -#include <linux/usb/composite.h> -#include <linux/usb/video.h> - -#include "uvc.h" +struct uvc_device; void uvc_function_setup_continue(struct uvc_device *uvc); @@ -21,4 +18,3 @@ void uvc_function_connect(struct uvc_device *uvc); void uvc_function_disconnect(struct uvc_device *uvc); #endif /* _F_UVC_H_ */ - diff --git a/drivers/usb/gadget/function/u_audio.c b/drivers/usb/gadget/function/u_audio.c index a72295c953bb..fb5ed97572e5 100644 --- a/drivers/usb/gadget/function/u_audio.c +++ b/drivers/usb/gadget/function/u_audio.c @@ -32,9 +32,6 @@ struct uac_req { struct uac_rtd_params { struct snd_uac_chip *uac; /* parent chip */ bool ep_enabled; /* if the ep is enabled */ - /* Size of the ring buffer */ - size_t dma_bytes; - unsigned char *dma_area; struct snd_pcm_substream *ss; @@ -43,8 +40,6 @@ struct uac_rtd_params { void *rbuf; - size_t period_size; - unsigned max_psize; /* MaxPacketSize of endpoint */ struct uac_req *ureq; @@ -84,12 +79,12 @@ static const struct snd_pcm_hardware uac_pcm_hardware = { static void u_audio_iso_complete(struct usb_ep *ep, struct usb_request *req) { unsigned pending; - unsigned long flags; + unsigned long flags, flags2; unsigned int hw_ptr; - bool update_alsa = false; int status = req->status; struct uac_req *ur = req->context; struct snd_pcm_substream *substream; + struct snd_pcm_runtime *runtime; struct uac_rtd_params *prm = ur->pp; struct snd_uac_chip *uac = prm->uac; @@ -111,6 +106,14 @@ static void u_audio_iso_complete(struct usb_ep *ep, struct usb_request *req) if (!substream) goto exit; + snd_pcm_stream_lock_irqsave(substream, flags2); + + runtime = substream->runtime; + if (!runtime || !snd_pcm_running(substream)) { + snd_pcm_stream_unlock_irqrestore(substream, flags2); + goto exit; + } + spin_lock_irqsave(&prm->lock, flags); if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { @@ -137,43 +140,46 @@ static void u_audio_iso_complete(struct usb_ep *ep, struct usb_request *req) req->actual = req->length; } - pending = prm->hw_ptr % prm->period_size; - pending += req->actual; - if (pending >= prm->period_size) - update_alsa = true; - hw_ptr = prm->hw_ptr; - prm->hw_ptr = (prm->hw_ptr + req->actual) % prm->dma_bytes; spin_unlock_irqrestore(&prm->lock, flags); /* Pack USB load in ALSA ring buffer */ - pending = prm->dma_bytes - hw_ptr; + pending = runtime->dma_bytes - hw_ptr; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { if (unlikely(pending < req->actual)) { - memcpy(req->buf, prm->dma_area + hw_ptr, pending); - memcpy(req->buf + pending, prm->dma_area, + memcpy(req->buf, runtime->dma_area + hw_ptr, pending); + memcpy(req->buf + pending, runtime->dma_area, req->actual - pending); } else { - memcpy(req->buf, prm->dma_area + hw_ptr, req->actual); + memcpy(req->buf, runtime->dma_area + hw_ptr, + req->actual); } } else { if (unlikely(pending < req->actual)) { - memcpy(prm->dma_area + hw_ptr, req->buf, pending); - memcpy(prm->dma_area, req->buf + pending, + memcpy(runtime->dma_area + hw_ptr, req->buf, pending); + memcpy(runtime->dma_area, req->buf + pending, req->actual - pending); } else { - memcpy(prm->dma_area + hw_ptr, req->buf, req->actual); + memcpy(runtime->dma_area + hw_ptr, req->buf, + req->actual); } } + spin_lock_irqsave(&prm->lock, flags); + /* update hw_ptr after data is copied to memory */ + prm->hw_ptr = (hw_ptr + req->actual) % runtime->dma_bytes; + hw_ptr = prm->hw_ptr; + spin_unlock_irqrestore(&prm->lock, flags); + snd_pcm_stream_unlock_irqrestore(substream, flags2); + + if ((hw_ptr % snd_pcm_lib_period_bytes(substream)) < req->actual) + snd_pcm_period_elapsed(substream); + exit: if (usb_ep_queue(ep, req, GFP_ATOMIC)) dev_err(uac->card->dev, "%d Error!\n", __LINE__); - - if (update_alsa) - snd_pcm_period_elapsed(substream); } static int uac_pcm_trigger(struct snd_pcm_substream *substream, int cmd) @@ -236,40 +242,12 @@ static snd_pcm_uframes_t uac_pcm_pointer(struct snd_pcm_substream *substream) static int uac_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hw_params) { - struct snd_uac_chip *uac = snd_pcm_substream_chip(substream); - struct uac_rtd_params *prm; - int err; - - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - prm = &uac->p_prm; - else - prm = &uac->c_prm; - - err = snd_pcm_lib_malloc_pages(substream, + return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); - if (err >= 0) { - prm->dma_bytes = substream->runtime->dma_bytes; - prm->dma_area = substream->runtime->dma_area; - prm->period_size = params_period_bytes(hw_params); - } - - return err; } static int uac_pcm_hw_free(struct snd_pcm_substream *substream) { - struct snd_uac_chip *uac = snd_pcm_substream_chip(substream); - struct uac_rtd_params *prm; - - if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - prm = &uac->p_prm; - else - prm = &uac->c_prm; - - prm->dma_area = NULL; - prm->dma_bytes = 0; - prm->period_size = 0; - return snd_pcm_lib_free_pages(substream); } @@ -595,15 +573,15 @@ int g_audio_setup(struct g_audio *g_audio, const char *pcm_name, if (err < 0) goto snd_fail; - strcpy(pcm->name, pcm_name); + strlcpy(pcm->name, pcm_name, sizeof(pcm->name)); pcm->private_data = uac; uac->pcm = pcm; snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &uac_pcm_ops); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &uac_pcm_ops); - strcpy(card->driver, card_name); - strcpy(card->shortname, card_name); + strlcpy(card->driver, card_name, sizeof(card->driver)); + strlcpy(card->shortname, card_name, sizeof(card->shortname)); sprintf(card->longname, "%s %i", card_name, card->dev->id); snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS, diff --git a/drivers/usb/gadget/function/u_uvc.h b/drivers/usb/gadget/function/u_uvc.h index d00d3ded71c0..2ed292e94fbc 100644 --- a/drivers/usb/gadget/function/u_uvc.h +++ b/drivers/usb/gadget/function/u_uvc.h @@ -13,6 +13,7 @@ #ifndef U_UVC_H #define U_UVC_H +#include <linux/mutex.h> #include <linux/usb/composite.h> #include <linux/usb/video.h> @@ -20,7 +21,6 @@ struct f_uvc_opts { struct usb_function_instance func_inst; - unsigned int uvc_gadget_trace_param; unsigned int streaming_interval; unsigned int streaming_maxpacket; unsigned int streaming_maxburst; @@ -80,7 +80,4 @@ struct f_uvc_opts { int refcnt; }; -void uvc_set_trace_param(unsigned int trace); - #endif /* U_UVC_H */ - diff --git a/drivers/usb/gadget/function/uvc.h b/drivers/usb/gadget/function/uvc.h index a64e07e61f8c..93cf78b420fe 100644 --- a/drivers/usb/gadget/function/uvc.h +++ b/drivers/usb/gadget/function/uvc.h @@ -9,52 +9,26 @@ #ifndef _UVC_GADGET_H_ #define _UVC_GADGET_H_ -#include <linux/ioctl.h> -#include <linux/types.h> -#include <linux/usb/ch9.h> - -#define UVC_EVENT_FIRST (V4L2_EVENT_PRIVATE_START + 0) -#define UVC_EVENT_CONNECT (V4L2_EVENT_PRIVATE_START + 0) -#define UVC_EVENT_DISCONNECT (V4L2_EVENT_PRIVATE_START + 1) -#define UVC_EVENT_STREAMON (V4L2_EVENT_PRIVATE_START + 2) -#define UVC_EVENT_STREAMOFF (V4L2_EVENT_PRIVATE_START + 3) -#define UVC_EVENT_SETUP (V4L2_EVENT_PRIVATE_START + 4) -#define UVC_EVENT_DATA (V4L2_EVENT_PRIVATE_START + 5) -#define UVC_EVENT_LAST (V4L2_EVENT_PRIVATE_START + 5) - -struct uvc_request_data { - __s32 length; - __u8 data[60]; -}; +#include <linux/list.h> +#include <linux/mutex.h> +#include <linux/spinlock.h> +#include <linux/usb/composite.h> +#include <linux/videodev2.h> -struct uvc_event { - union { - enum usb_device_speed speed; - struct usb_ctrlrequest req; - struct uvc_request_data data; - }; -}; +#include <media/v4l2-device.h> +#include <media/v4l2-dev.h> +#include <media/v4l2-fh.h> -#define UVCIOC_SEND_RESPONSE _IOW('U', 1, struct uvc_request_data) +#include "uvc_queue.h" -#define UVC_INTF_CONTROL 0 -#define UVC_INTF_STREAMING 1 +struct usb_ep; +struct usb_request; +struct uvc_descriptor_header; /* ------------------------------------------------------------------------ * Debugging, printing and logging */ -#ifdef __KERNEL__ - -#include <linux/usb.h> /* For usb_endpoint_* */ -#include <linux/usb/composite.h> -#include <linux/usb/gadget.h> -#include <linux/videodev2.h> -#include <media/v4l2-fh.h> -#include <media/v4l2-device.h> - -#include "uvc_queue.h" - #define UVC_TRACE_PROBE (1 << 0) #define UVC_TRACE_DESCR (1 << 1) #define UVC_TRACE_CONTROL (1 << 2) @@ -184,7 +158,4 @@ extern void uvc_endpoint_stream(struct uvc_device *dev); extern void uvc_function_connect(struct uvc_device *uvc); extern void uvc_function_disconnect(struct uvc_device *uvc); -#endif /* __KERNEL__ */ - #endif /* _UVC_GADGET_H_ */ - diff --git a/drivers/usb/gadget/function/uvc_configfs.c b/drivers/usb/gadget/function/uvc_configfs.c index c9b8cc4aae5a..b51f0d278826 100644 --- a/drivers/usb/gadget/function/uvc_configfs.c +++ b/drivers/usb/gadget/function/uvc_configfs.c @@ -31,7 +31,11 @@ static struct configfs_attribute prefix##attr_##cname = { \ .show = prefix##cname##_show, \ } -static inline struct f_uvc_opts *to_f_uvc_opts(struct config_item *item); +static inline struct f_uvc_opts *to_f_uvc_opts(struct config_item *item) +{ + return container_of(to_config_group(item), struct f_uvc_opts, + func_inst.group); +} /* control/header/<NAME> */ DECLARE_UVC_HEADER_DESCRIPTOR(1); @@ -2105,12 +2109,6 @@ static const struct config_item_type uvcg_streaming_grp_type = { .ct_owner = THIS_MODULE, }; -static inline struct f_uvc_opts *to_f_uvc_opts(struct config_item *item) -{ - return container_of(to_config_group(item), struct f_uvc_opts, - func_inst.group); -} - static void uvc_attr_release(struct config_item *item) { struct f_uvc_opts *opts = to_f_uvc_opts(item); diff --git a/drivers/usb/gadget/function/uvc_queue.h b/drivers/usb/gadget/function/uvc_queue.h index f9f65b5c1062..2f0fff769843 100644 --- a/drivers/usb/gadget/function/uvc_queue.h +++ b/drivers/usb/gadget/function/uvc_queue.h @@ -2,13 +2,15 @@ #ifndef _UVC_QUEUE_H_ #define _UVC_QUEUE_H_ -#ifdef __KERNEL__ - -#include <linux/kernel.h> +#include <linux/list.h> #include <linux/poll.h> -#include <linux/videodev2.h> +#include <linux/spinlock.h> + #include <media/videobuf2-v4l2.h> +struct file; +struct mutex; + /* Maximum frame size in bytes, for sanity checking. */ #define UVC_MAX_FRAME_SIZE (16*1024*1024) /* Maximum number of video buffers. */ @@ -91,7 +93,5 @@ struct uvc_buffer *uvcg_queue_next_buffer(struct uvc_video_queue *queue, struct uvc_buffer *uvcg_queue_head(struct uvc_video_queue *queue); -#endif /* __KERNEL__ */ - #endif /* _UVC_QUEUE_H_ */ diff --git a/drivers/usb/gadget/function/uvc_v4l2.c b/drivers/usb/gadget/function/uvc_v4l2.c index 9a9019625496..7f1ca3b57823 100644 --- a/drivers/usb/gadget/function/uvc_v4l2.c +++ b/drivers/usb/gadget/function/uvc_v4l2.c @@ -6,10 +6,11 @@ * Laurent Pinchart (laurent.pinchart@ideasonboard.com) */ -#include <linux/kernel.h> #include <linux/device.h> #include <linux/errno.h> +#include <linux/kernel.h> #include <linux/list.h> +#include <linux/usb/g_uvc.h> #include <linux/videodev2.h> #include <linux/vmalloc.h> #include <linux/wait.h> diff --git a/drivers/usb/gadget/function/uvc_video.h b/drivers/usb/gadget/function/uvc_video.h index 6c20aa75f966..7d77122b0ff9 100644 --- a/drivers/usb/gadget/function/uvc_video.h +++ b/drivers/usb/gadget/function/uvc_video.h @@ -12,6 +12,8 @@ #ifndef __UVC_VIDEO_H__ #define __UVC_VIDEO_H__ +struct uvc_video; + int uvcg_video_pump(struct uvc_video *video); int uvcg_video_enable(struct uvc_video *video, int enable); diff --git a/drivers/usb/gadget/legacy/tcm_usb_gadget.c b/drivers/usb/gadget/legacy/tcm_usb_gadget.c index 682bf99dcf76..40870227999a 100644 --- a/drivers/usb/gadget/legacy/tcm_usb_gadget.c +++ b/drivers/usb/gadget/legacy/tcm_usb_gadget.c @@ -41,7 +41,7 @@ static struct usb_device_descriptor usbg_device_desc = { #define USB_G_STR_CONFIG USB_GADGET_FIRST_AVAIL_IDX static struct usb_string usbg_us_strings[] = { - [USB_GADGET_MANUFACTURER_IDX].s = "Target Manufactor", + [USB_GADGET_MANUFACTURER_IDX].s = "Target Manufacturer", [USB_GADGET_PRODUCT_IDX].s = "Target Product", [USB_GADGET_SERIAL_IDX].s = "000000000001", [USB_G_STR_CONFIG].s = "default config", diff --git a/drivers/usb/gadget/legacy/webcam.c b/drivers/usb/gadget/legacy/webcam.c index 6b86568c9157..a9f8eb8e1c76 100644 --- a/drivers/usb/gadget/legacy/webcam.c +++ b/drivers/usb/gadget/legacy/webcam.c @@ -30,9 +30,6 @@ static unsigned int streaming_maxburst; module_param(streaming_maxburst, uint, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(streaming_maxburst, "0 - 15 (ss only)"); -static unsigned int trace; -module_param(trace, uint, S_IRUGO|S_IWUSR); -MODULE_PARM_DESC(trace, "Trace level bitmask"); /* -------------------------------------------------------------------------- * Device descriptor */ @@ -379,7 +376,6 @@ webcam_bind(struct usb_composite_dev *cdev) uvc_opts->streaming_interval = streaming_interval; uvc_opts->streaming_maxpacket = streaming_maxpacket; uvc_opts->streaming_maxburst = streaming_maxburst; - uvc_set_trace_param(trace); uvc_opts->fs_control = uvc_fs_control_cls; uvc_opts->ss_control = uvc_ss_control_cls; diff --git a/drivers/usb/gadget/udc/Kconfig b/drivers/usb/gadget/udc/Kconfig index 1df4dedffe86..0a16cbd4e528 100644 --- a/drivers/usb/gadget/udc/Kconfig +++ b/drivers/usb/gadget/udc/Kconfig @@ -193,6 +193,7 @@ config USB_RENESAS_USB3 tristate 'Renesas USB3.0 Peripheral controller' depends on ARCH_RENESAS || COMPILE_TEST depends on EXTCON + select USB_ROLE_SWITCH help Renesas USB3.0 Peripheral controller is a USB peripheral controller that supports super, high, and full speed USB 3.0 data transfers. diff --git a/drivers/usb/gadget/udc/aspeed-vhub/Kconfig b/drivers/usb/gadget/udc/aspeed-vhub/Kconfig index f0cdf89b8503..83ba8a2eb6af 100644 --- a/drivers/usb/gadget/udc/aspeed-vhub/Kconfig +++ b/drivers/usb/gadget/udc/aspeed-vhub/Kconfig @@ -2,6 +2,7 @@ config USB_ASPEED_VHUB tristate "Aspeed vHub UDC driver" depends on ARCH_ASPEED || COMPILE_TEST + depends on USB_LIBCOMPOSITE help USB peripheral controller for the Aspeed AST2500 family SoCs supporting the "vHub" functionality and USB2.0 diff --git a/drivers/usb/gadget/udc/aspeed-vhub/ep0.c b/drivers/usb/gadget/udc/aspeed-vhub/ep0.c index 20ffb03ff6ac..e2927fb083cf 100644 --- a/drivers/usb/gadget/udc/aspeed-vhub/ep0.c +++ b/drivers/usb/gadget/udc/aspeed-vhub/ep0.c @@ -108,6 +108,13 @@ void ast_vhub_ep0_handle_setup(struct ast_vhub_ep *ep) /* Check our state, cancel pending requests if needed */ if (ep->ep0.state != ep0_state_token) { EPDBG(ep, "wrong state\n"); + ast_vhub_nuke(ep, -EIO); + + /* + * Accept the packet regardless, this seems to happen + * when stalling a SETUP packet that has an OUT data + * phase. + */ ast_vhub_nuke(ep, 0); goto stall; } @@ -212,6 +219,8 @@ static void ast_vhub_ep0_do_send(struct ast_vhub_ep *ep, if (chunk && req->req.buf) memcpy(ep->buf, req->req.buf + req->req.actual, chunk); + vhub_dma_workaround(ep->buf); + /* Remember chunk size and trigger send */ reg = VHUB_EP0_SET_TX_LEN(chunk); writel(reg, ep->ep0.ctlstat); @@ -224,7 +233,7 @@ static void ast_vhub_ep0_rx_prime(struct ast_vhub_ep *ep) EPVDBG(ep, "rx prime\n"); /* Prime endpoint for receiving data */ - writel(VHUB_EP0_RX_BUFF_RDY, ep->ep0.ctlstat + AST_VHUB_EP0_CTRL); + writel(VHUB_EP0_RX_BUFF_RDY, ep->ep0.ctlstat); } static void ast_vhub_ep0_do_receive(struct ast_vhub_ep *ep, struct ast_vhub_req *req, diff --git a/drivers/usb/gadget/udc/aspeed-vhub/epn.c b/drivers/usb/gadget/udc/aspeed-vhub/epn.c index 80c9feac5147..5939eb1e97f2 100644 --- a/drivers/usb/gadget/udc/aspeed-vhub/epn.c +++ b/drivers/usb/gadget/udc/aspeed-vhub/epn.c @@ -66,11 +66,16 @@ static void ast_vhub_epn_kick(struct ast_vhub_ep *ep, struct ast_vhub_req *req) if (!req->req.dma) { /* For IN transfers, copy data over first */ - if (ep->epn.is_in) + if (ep->epn.is_in) { memcpy(ep->buf, req->req.buf + act, chunk); + vhub_dma_workaround(ep->buf); + } writel(ep->buf_dma, ep->epn.regs + AST_VHUB_EP_DESC_BASE); - } else + } else { + if (ep->epn.is_in) + vhub_dma_workaround(req->req.buf); writel(req->req.dma + act, ep->epn.regs + AST_VHUB_EP_DESC_BASE); + } /* Start DMA */ req->active = true; @@ -161,6 +166,7 @@ static inline unsigned int ast_vhub_count_free_descs(struct ast_vhub_ep *ep) static void ast_vhub_epn_kick_desc(struct ast_vhub_ep *ep, struct ast_vhub_req *req) { + struct ast_vhub_desc *desc = NULL; unsigned int act = req->act_count; unsigned int len = req->req.length; unsigned int chunk; @@ -177,7 +183,6 @@ static void ast_vhub_epn_kick_desc(struct ast_vhub_ep *ep, /* While we can create descriptors */ while (ast_vhub_count_free_descs(ep) && req->last_desc < 0) { - struct ast_vhub_desc *desc; unsigned int d_num; /* Grab next free descriptor */ @@ -227,6 +232,9 @@ static void ast_vhub_epn_kick_desc(struct ast_vhub_ep *ep, req->act_count = act = act + chunk; } + if (likely(desc)) + vhub_dma_workaround(desc); + /* Tell HW about new descriptors */ writel(VHUB_EP_DMA_SET_CPU_WPTR(ep->epn.d_next), ep->epn.regs + AST_VHUB_EP_DESC_STATUS); diff --git a/drivers/usb/gadget/udc/aspeed-vhub/vhub.h b/drivers/usb/gadget/udc/aspeed-vhub/vhub.h index 2b040257bc1f..4ed03d33a5a9 100644 --- a/drivers/usb/gadget/udc/aspeed-vhub/vhub.h +++ b/drivers/usb/gadget/udc/aspeed-vhub/vhub.h @@ -462,6 +462,39 @@ enum std_req_rc { #define DDBG(d, fmt, ...) do { } while(0) #endif +static inline void vhub_dma_workaround(void *addr) +{ + /* + * This works around a confirmed HW issue with the Aspeed chip. + * + * The core uses a different bus to memory than the AHB going to + * the USB device controller. Due to the latter having a higher + * priority than the core for arbitration on that bus, it's + * possible for an MMIO to the device, followed by a DMA by the + * device from memory to all be performed and services before + * a previous store to memory gets completed. + * + * This the following scenario can happen: + * + * - Driver writes to a DMA descriptor (Mbus) + * - Driver writes to the MMIO register to start the DMA (AHB) + * - The gadget sees the second write and sends a read of the + * descriptor to the memory controller (Mbus) + * - The gadget hits memory before the descriptor write + * causing it to read an obsolete value. + * + * Thankfully the problem is limited to the USB gadget device, other + * masters in the SoC all have a lower priority than the core, thus + * ensuring that the store by the core arrives first. + * + * The workaround consists of using a dummy read of the memory before + * doing the MMIO writes. This will ensure that the previous writes + * have been "pushed out". + */ + mb(); + (void)__raw_readl((void __iomem *)addr); +} + /* core.c */ void ast_vhub_done(struct ast_vhub_ep *ep, struct ast_vhub_req *req, int status); diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c index cab5e4f09924..af88b48c1cea 100644 --- a/drivers/usb/gadget/udc/core.c +++ b/drivers/usb/gadget/udc/core.c @@ -87,6 +87,8 @@ EXPORT_SYMBOL_GPL(usb_ep_set_maxpacket_limit); * configurable, with more generic names like "ep-a". (remember that for * USB, "in" means "towards the USB master".) * + * This routine must be called in process context. + * * returns zero, or a negative error code. */ int usb_ep_enable(struct usb_ep *ep) @@ -119,6 +121,8 @@ EXPORT_SYMBOL_GPL(usb_ep_enable); * gadget drivers must call usb_ep_enable() again before queueing * requests to the endpoint. * + * This routine must be called in process context. + * * returns zero, or a negative error code. */ int usb_ep_disable(struct usb_ep *ep) @@ -241,6 +245,8 @@ EXPORT_SYMBOL_GPL(usb_ep_free_request); * Note that @req's ->complete() callback must never be called from * within usb_ep_queue() as that can create deadlock situations. * + * This routine may be called in interrupt context. + * * Returns zero, or a negative error code. Endpoints that are not enabled * report errors; errors will also be * reported when the usb peripheral is disconnected. @@ -284,6 +290,8 @@ EXPORT_SYMBOL_GPL(usb_ep_queue); * at the head of the queue) except as part of disconnecting from usb. Such * restrictions prevent drivers from supporting configuration changes, * even to configuration zero (a "chapter 9" requirement). + * + * This routine may be called in interrupt context. */ int usb_ep_dequeue(struct usb_ep *ep, struct usb_request *req) { @@ -311,6 +319,8 @@ EXPORT_SYMBOL_GPL(usb_ep_dequeue); * current altsetting, see usb_ep_clear_halt(). When switching altsettings, * it's simplest to use usb_ep_enable() or usb_ep_disable() for the endpoints. * + * This routine may be called in interrupt context. + * * Returns zero, or a negative error code. On success, this call sets * underlying hardware state that blocks data transfers. * Attempts to halt IN endpoints will fail (returning -EAGAIN) if any @@ -336,6 +346,8 @@ EXPORT_SYMBOL_GPL(usb_ep_set_halt); * for endpoints that aren't reconfigured, after clearing any other state * in the endpoint's i/o queue. * + * This routine may be called in interrupt context. + * * Returns zero, or a negative error code. On success, this call clears * the underlying hardware state reflecting endpoint halt and data toggle. * Note that some hardware can't support this request (like pxa2xx_udc), @@ -360,6 +372,8 @@ EXPORT_SYMBOL_GPL(usb_ep_clear_halt); * requests. If the gadget driver clears the halt status, it will * automatically unwedge the endpoint. * + * This routine may be called in interrupt context. + * * Returns zero on success, else negative errno. */ int usb_ep_set_wedge(struct usb_ep *ep) @@ -388,6 +402,8 @@ EXPORT_SYMBOL_GPL(usb_ep_set_wedge); * written OUT to it by the host. Drivers that need precise handling for * fault reporting or recovery may need to use this call. * + * This routine may be called in interrupt context. + * * This returns the number of such bytes in the fifo, or a negative * errno if the endpoint doesn't use a FIFO or doesn't support such * precise handling. @@ -415,6 +431,8 @@ EXPORT_SYMBOL_GPL(usb_ep_fifo_status); * an endpoint fifo after abnormal transaction terminations. The call * must never be used except when endpoint is not being used for any * protocol translation. + * + * This routine may be called in interrupt context. */ void usb_ep_fifo_flush(struct usb_ep *ep) { diff --git a/drivers/usb/gadget/udc/fsl_mxc_udc.c b/drivers/usb/gadget/udc/fsl_mxc_udc.c index f29cf5c6160c..5a321992decc 100644 --- a/drivers/usb/gadget/udc/fsl_mxc_udc.c +++ b/drivers/usb/gadget/udc/fsl_mxc_udc.c @@ -11,6 +11,7 @@ #include <linux/delay.h> #include <linux/err.h> #include <linux/fsl_devices.h> +#include <linux/mod_devicetable.h> #include <linux/platform_device.h> #include <linux/io.h> diff --git a/drivers/usb/gadget/udc/r8a66597-udc.c b/drivers/usb/gadget/udc/r8a66597-udc.c index a3ecce62662b..11e25a3f4f1f 100644 --- a/drivers/usb/gadget/udc/r8a66597-udc.c +++ b/drivers/usb/gadget/udc/r8a66597-udc.c @@ -832,11 +832,11 @@ static void init_controller(struct r8a66597 *r8a66597) r8a66597_bset(r8a66597, XCKE, SYSCFG0); - msleep(3); + mdelay(3); r8a66597_bset(r8a66597, PLLC, SYSCFG0); - msleep(1); + mdelay(1); r8a66597_bset(r8a66597, SCKE, SYSCFG0); @@ -1190,7 +1190,7 @@ __acquires(r8a66597->lock) r8a66597->ep0_req->length = 2; /* AV: what happens if we get called again before that gets through? */ spin_unlock(&r8a66597->lock); - r8a66597_queue(r8a66597->gadget.ep0, r8a66597->ep0_req, GFP_KERNEL); + r8a66597_queue(r8a66597->gadget.ep0, r8a66597->ep0_req, GFP_ATOMIC); spin_lock(&r8a66597->lock); } diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c index 7cf98c793e04..1f879b3f2c96 100644 --- a/drivers/usb/gadget/udc/renesas_usb3.c +++ b/drivers/usb/gadget/udc/renesas_usb3.c @@ -23,6 +23,8 @@ #include <linux/uaccess.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> +#include <linux/usb/of.h> +#include <linux/usb/role.h> /* register definitions */ #define USB3_AXI_INT_STA 0x008 @@ -335,6 +337,11 @@ struct renesas_usb3 { struct phy *phy; struct dentry *dentry; + struct usb_role_switch *role_sw; + struct device *host_dev; + struct work_struct role_work; + enum usb_role role; + struct renesas_usb3_ep *usb3_ep; int num_usb3_eps; @@ -651,6 +658,14 @@ static void usb3_check_vbus(struct renesas_usb3 *usb3) } } +static void renesas_usb3_role_work(struct work_struct *work) +{ + struct renesas_usb3 *usb3 = + container_of(work, struct renesas_usb3, role_work); + + usb_role_switch_set_role(usb3->role_sw, usb3->role); +} + static void usb3_set_mode(struct renesas_usb3 *usb3, bool host) { if (host) @@ -659,6 +674,16 @@ static void usb3_set_mode(struct renesas_usb3 *usb3, bool host) usb3_set_bit(usb3, DRD_CON_PERI_CON, USB3_DRD_CON); } +static void usb3_set_mode_by_role_sw(struct renesas_usb3 *usb3, bool host) +{ + if (usb3->role_sw) { + usb3->role = host ? USB_ROLE_HOST : USB_ROLE_DEVICE; + schedule_work(&usb3->role_work); + } else { + usb3_set_mode(usb3, host); + } +} + static void usb3_vbus_out(struct renesas_usb3 *usb3, bool enable) { if (enable) @@ -672,7 +697,7 @@ static void usb3_mode_config(struct renesas_usb3 *usb3, bool host, bool a_dev) unsigned long flags; spin_lock_irqsave(&usb3->lock, flags); - usb3_set_mode(usb3, host); + usb3_set_mode_by_role_sw(usb3, host); usb3_vbus_out(usb3, a_dev); /* for A-Peripheral or forced B-device mode */ if ((!host && a_dev) || @@ -2302,6 +2327,41 @@ static const struct usb_gadget_ops renesas_usb3_gadget_ops = { .set_selfpowered = renesas_usb3_set_selfpowered, }; +static enum usb_role renesas_usb3_role_switch_get(struct device *dev) +{ + struct renesas_usb3 *usb3 = dev_get_drvdata(dev); + enum usb_role cur_role; + + pm_runtime_get_sync(dev); + cur_role = usb3_is_host(usb3) ? USB_ROLE_HOST : USB_ROLE_DEVICE; + pm_runtime_put(dev); + + return cur_role; +} + +static int renesas_usb3_role_switch_set(struct device *dev, + enum usb_role role) +{ + struct renesas_usb3 *usb3 = dev_get_drvdata(dev); + struct device *host = usb3->host_dev; + enum usb_role cur_role = renesas_usb3_role_switch_get(dev); + + pm_runtime_get_sync(dev); + if (cur_role == USB_ROLE_HOST && role == USB_ROLE_DEVICE) { + device_release_driver(host); + usb3_set_mode(usb3, false); + } else if (cur_role == USB_ROLE_DEVICE && role == USB_ROLE_HOST) { + /* Must set the mode before device_attach of the host */ + usb3_set_mode(usb3, true); + /* This device_attach() might sleep */ + if (device_attach(host) < 0) + dev_err(dev, "device_attach(host) failed\n"); + } + pm_runtime_put(dev); + + return 0; +} + static ssize_t role_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { @@ -2405,6 +2465,8 @@ static int renesas_usb3_remove(struct platform_device *pdev) debugfs_remove_recursive(usb3->dentry); device_remove_file(&pdev->dev, &dev_attr_role); + usb_role_switch_unregister(usb3->role_sw); + usb_del_gadget_udc(&usb3->gadget); renesas_usb3_dma_free_prd(usb3, &pdev->dev); @@ -2562,6 +2624,12 @@ static const unsigned int renesas_usb3_cable[] = { EXTCON_NONE, }; +static const struct usb_role_switch_desc renesas_usb3_role_switch_desc = { + .set = renesas_usb3_role_switch_set, + .get = renesas_usb3_role_switch_get, + .allow_userspace_control = true, +}; + static int renesas_usb3_probe(struct platform_device *pdev) { struct renesas_usb3 *usb3; @@ -2647,6 +2715,20 @@ static int renesas_usb3_probe(struct platform_device *pdev) if (ret < 0) goto err_dev_create; + INIT_WORK(&usb3->role_work, renesas_usb3_role_work); + usb3->role_sw = usb_role_switch_register(&pdev->dev, + &renesas_usb3_role_switch_desc); + if (!IS_ERR(usb3->role_sw)) { + usb3->host_dev = usb_of_get_companion_dev(&pdev->dev); + if (!usb3->host_dev) { + /* If not found, this driver will not use a role sw */ + usb_role_switch_unregister(usb3->role_sw); + usb3->role_sw = NULL; + } + } else { + usb3->role_sw = NULL; + } + usb3->workaround_for_vbus = priv->workaround_for_vbus; renesas_usb3_debugfs_init(usb3, &pdev->dev); diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 6e64d3a64dbb..1a4ea98cac2a 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -192,6 +192,14 @@ config USB_EHCI_MXC ---help--- Variation of ARC USB block used in some Freescale chips. +config USB_EHCI_HCD_NPCM7XX + tristate "Support for Nuvoton NPCM7XX on-chip EHCI USB controller" + depends on (USB_EHCI_HCD && ARCH_NPCM7XX) || COMPILE_TEST + default y if (USB_EHCI_HCD && ARCH_NPCM7XX) + help + Enables support for the on-chip EHCI controller on + Nuvoton NPCM7XX chips. + config USB_EHCI_HCD_OMAP tristate "EHCI support for OMAP3 and later chips" depends on ARCH_OMAP diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile index 9b669c9f9a48..e6235269c151 100644 --- a/drivers/usb/host/Makefile +++ b/drivers/usb/host/Makefile @@ -43,6 +43,7 @@ obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o obj-$(CONFIG_USB_EHCI_PCI) += ehci-pci.o obj-$(CONFIG_USB_EHCI_HCD_PLATFORM) += ehci-platform.o obj-$(CONFIG_USB_EHCI_MXC) += ehci-mxc.o +obj-$(CONFIG_USB_EHCI_HCD_NPCM7XX) += ehci-npcm7xx.o obj-$(CONFIG_USB_EHCI_HCD_OMAP) += ehci-omap.o obj-$(CONFIG_USB_EHCI_HCD_ORION) += ehci-orion.o obj-$(CONFIG_USB_EHCI_HCD_SPEAR) += ehci-spear.o diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 89c47ae5c7d3..8608ac513fb7 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -1226,6 +1226,7 @@ static const struct hc_driver ehci_hc_driver = { .bus_resume = ehci_bus_resume, .relinquish_port = ehci_relinquish_port, .port_handed_over = ehci_port_handed_over, + .get_resuming_ports = ehci_get_resuming_ports, /* * device support diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index d7641cbdee43..ce0eaf7d7c12 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -512,10 +512,18 @@ static int ehci_bus_resume (struct usb_hcd *hcd) return -ESHUTDOWN; } +static unsigned long ehci_get_resuming_ports(struct usb_hcd *hcd) +{ + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + + return ehci->resuming_ports; +} + #else #define ehci_bus_suspend NULL #define ehci_bus_resume NULL +#define ehci_get_resuming_ports NULL #endif /* CONFIG_PM */ diff --git a/drivers/usb/host/ehci-npcm7xx.c b/drivers/usb/host/ehci-npcm7xx.c new file mode 100644 index 000000000000..adaf8fb4b459 --- /dev/null +++ b/drivers/usb/host/ehci-npcm7xx.c @@ -0,0 +1,212 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Nuvoton NPCM7xx driver for EHCI HCD + * + * Copyright (C) 2018 Nuvoton Technologies, + * Avi Fishman <avi.fishman@nuvoton.com> <avifishman70@gmail.com> + * Tomer Maimon <tomer.maimon@nuvoton.com> <tmaimon77@gmail.com> + * + * Based on various ehci-spear.c driver + */ + + +#include <linux/dma-mapping.h> + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/pm.h> +#include <linux/usb.h> +#include <linux/usb/hcd.h> + +#include "ehci.h" + +#include <linux/regmap.h> +#include <linux/mfd/syscon.h> + +#define DRIVER_DESC "EHCI npcm7xx driver" + +static const char hcd_name[] = "npcm7xx-ehci"; + +#define USB2PHYCTL_OFFSET 0x144 + +#define IPSRST2_OFFSET 0x24 +#define IPSRST3_OFFSET 0x34 + + +static struct hc_driver __read_mostly ehci_npcm7xx_hc_driver; + +#ifdef CONFIG_PM_SLEEP +static int ehci_npcm7xx_drv_suspend(struct device *dev) +{ + struct usb_hcd *hcd = dev_get_drvdata(dev); + bool do_wakeup = device_may_wakeup(dev); + + return ehci_suspend(hcd, do_wakeup); +} + +static int ehci_npcm7xx_drv_resume(struct device *dev) +{ + struct usb_hcd *hcd = dev_get_drvdata(dev); + + ehci_resume(hcd, false); + return 0; +} +#endif /* CONFIG_PM_SLEEP */ + +static SIMPLE_DEV_PM_OPS(ehci_npcm7xx_pm_ops, ehci_npcm7xx_drv_suspend, + ehci_npcm7xx_drv_resume); + +static int npcm7xx_ehci_hcd_drv_probe(struct platform_device *pdev) +{ + struct usb_hcd *hcd; + struct resource *res; + struct regmap *gcr_regmap; + struct regmap *rst_regmap; + const struct hc_driver *driver = &ehci_npcm7xx_hc_driver; + int irq; + int retval; + + dev_dbg(&pdev->dev, "initializing npcm7xx ehci USB Controller\n"); + + gcr_regmap = syscon_regmap_lookup_by_compatible("nuvoton,npcm750-gcr"); + if (IS_ERR(gcr_regmap)) { + dev_err(&pdev->dev, "%s: failed to find nuvoton,npcm750-gcr\n", + __func__); + return PTR_ERR(gcr_regmap); + } + + rst_regmap = syscon_regmap_lookup_by_compatible("nuvoton,npcm750-rst"); + if (IS_ERR(rst_regmap)) { + dev_err(&pdev->dev, "%s: failed to find nuvoton,npcm750-rst\n", + __func__); + return PTR_ERR(rst_regmap); + } + + /********* phy init ******/ + // reset usb host + regmap_update_bits(rst_regmap, IPSRST2_OFFSET, + (0x1 << 26), (0x1 << 26)); + regmap_update_bits(rst_regmap, IPSRST3_OFFSET, + (0x1 << 25), (0x1 << 25)); + regmap_update_bits(gcr_regmap, USB2PHYCTL_OFFSET, + (0x1 << 28), 0); + + udelay(1); + + // enable phy + regmap_update_bits(rst_regmap, IPSRST3_OFFSET, + (0x1 << 25), 0); + + udelay(50); // enable phy + + regmap_update_bits(gcr_regmap, USB2PHYCTL_OFFSET, + (0x1 << 28), (0x1 << 28)); + + // enable host + regmap_update_bits(rst_regmap, IPSRST2_OFFSET, + (0x1 << 26), 0); + + if (usb_disabled()) + return -ENODEV; + + irq = platform_get_irq(pdev, 0); + if (irq < 0) { + retval = irq; + goto fail; + } + + /* + * Right now device-tree probed devices don't get dma_mask set. + * Since shared usb code relies on it, set it here for now. + * Once we have dma capability bindings this can go away. + */ + retval = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); + if (retval) + goto fail; + + hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev)); + if (!hcd) { + retval = -ENOMEM; + goto fail; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + hcd->regs = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(hcd->regs)) { + retval = PTR_ERR(hcd->regs); + goto err_put_hcd; + } + hcd->rsrc_start = res->start; + hcd->rsrc_len = resource_size(res); + + /* registers start at offset 0x0 */ + hcd_to_ehci(hcd)->caps = hcd->regs; + + retval = usb_add_hcd(hcd, irq, IRQF_SHARED); + if (retval) + goto err_put_hcd; + + device_wakeup_enable(hcd->self.controller); + return retval; + +err_put_hcd: + usb_put_hcd(hcd); +fail: + dev_err(&pdev->dev, "init fail, %d\n", retval); + + return retval; +} + +static int npcm7xx_ehci_hcd_drv_remove(struct platform_device *pdev) +{ + struct usb_hcd *hcd = platform_get_drvdata(pdev); + + usb_remove_hcd(hcd); + + usb_put_hcd(hcd); + + return 0; +} + +static const struct of_device_id npcm7xx_ehci_id_table[] = { + { .compatible = "nuvoton,npcm750-ehci" }, + { }, +}; +MODULE_DEVICE_TABLE(of, npcm7xx_ehci_id_table); + +static struct platform_driver npcm7xx_ehci_hcd_driver = { + .probe = npcm7xx_ehci_hcd_drv_probe, + .remove = npcm7xx_ehci_hcd_drv_remove, + .shutdown = usb_hcd_platform_shutdown, + .driver = { + .name = "npcm7xx-ehci", + .bus = &platform_bus_type, + .pm = &ehci_npcm7xx_pm_ops, + .of_match_table = npcm7xx_ehci_id_table, + } +}; + +static int __init ehci_npcm7xx_init(void) +{ + if (usb_disabled()) + return -ENODEV; + + pr_info("%s: " DRIVER_DESC "\n", hcd_name); + + ehci_init_driver(&ehci_npcm7xx_hc_driver, NULL); + return platform_driver_register(&npcm7xx_ehci_hcd_driver); +} +module_init(ehci_npcm7xx_init); + +static void __exit ehci_npcm7xx_cleanup(void) +{ + platform_driver_unregister(&npcm7xx_ehci_hcd_driver); +} +module_exit(ehci_npcm7xx_cleanup); + +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_ALIAS("platform:npcm7xx-ehci"); +MODULE_AUTHOR("Avi Fishman"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c index 8c733492d8fe..454d8c624a3f 100644 --- a/drivers/usb/host/ehci-ps3.c +++ b/drivers/usb/host/ehci-ps3.c @@ -86,7 +86,7 @@ static int ps3_ehci_probe(struct ps3_system_bus_device *dev) int result; struct usb_hcd *hcd; unsigned int virq; - static u64 dummy_mask = DMA_BIT_MASK(32); + static u64 dummy_mask; if (usb_disabled()) { result = -ENODEV; @@ -131,7 +131,9 @@ static int ps3_ehci_probe(struct ps3_system_bus_device *dev) goto fail_irq; } - dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */ + dummy_mask = DMA_BIT_MASK(32); + dev->core.dma_mask = &dummy_mask; + dma_set_coherent_mask(&dev->core, dummy_mask); hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev_name(&dev->core)); diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index 1d87295682b8..da7b00a6110b 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -1835,7 +1835,6 @@ static bool itd_complete(struct ehci_hcd *ehci, struct ehci_itd *itd) unsigned uframe; int urb_index = -1; struct ehci_iso_stream *stream = itd->stream; - struct usb_device *dev; bool retval = false; /* for each uframe with a packet */ @@ -1886,7 +1885,6 @@ static bool itd_complete(struct ehci_hcd *ehci, struct ehci_itd *itd) */ /* give urb back to the driver; completion often (re)submits */ - dev = urb->dev; ehci_urb_done(ehci, urb, 0); retval = true; urb = NULL; @@ -2230,7 +2228,6 @@ static bool sitd_complete(struct ehci_hcd *ehci, struct ehci_sitd *sitd) u32 t; int urb_index; struct ehci_iso_stream *stream = sitd->stream; - struct usb_device *dev; bool retval = false; urb_index = sitd->index; @@ -2268,7 +2265,6 @@ static bool sitd_complete(struct ehci_hcd *ehci, struct ehci_sitd *sitd) */ /* give urb back to the driver; completion often (re)submits */ - dev = urb->dev; ehci_urb_done(ehci, urb, 0); retval = true; urb = NULL; diff --git a/drivers/usb/host/ohci-ps3.c b/drivers/usb/host/ohci-ps3.c index 20a23d795adf..395f9d3bc849 100644 --- a/drivers/usb/host/ohci-ps3.c +++ b/drivers/usb/host/ohci-ps3.c @@ -69,7 +69,7 @@ static int ps3_ohci_probe(struct ps3_system_bus_device *dev) int result; struct usb_hcd *hcd; unsigned int virq; - static u64 dummy_mask = DMA_BIT_MASK(32); + static u64 dummy_mask; if (usb_disabled()) { result = -ENODEV; @@ -115,7 +115,9 @@ static int ps3_ohci_probe(struct ps3_system_bus_device *dev) goto fail_irq; } - dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */ + dummy_mask = DMA_BIT_MASK(32); + dev->core.dma_mask = &dummy_mask; + dma_set_coherent_mask(&dev->core, dummy_mask); hcd = usb_create_hcd(&ps3_ohci_hc_driver, &dev->core, dev_name(&dev->core)); diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c index 032b8652910a..072bd5d5738e 100644 --- a/drivers/usb/host/u132-hcd.c +++ b/drivers/usb/host/u132-hcd.c @@ -3062,7 +3062,6 @@ static int u132_probe(struct platform_device *pdev) int retval; u32 control; u32 rh_a = -1; - u32 num_ports; msleep(100); if (u132_exiting > 0) @@ -3077,7 +3076,6 @@ static int u132_probe(struct platform_device *pdev) retval = ftdi_read_pcimem(pdev, roothub.a, &rh_a); if (retval) return retval; - num_ports = rh_a & RH_A_NDP; /* refuse to confuse usbcore */ if (pdev->dev.dma_mask) return -EINVAL; diff --git a/drivers/usb/host/whci/pzl.c b/drivers/usb/host/whci/pzl.c index bb84366f7bd3..ef52aeb02fde 100644 --- a/drivers/usb/host/whci/pzl.c +++ b/drivers/usb/host/whci/pzl.c @@ -96,9 +96,7 @@ static enum whc_update pzl_process_qset(struct whc *whc, struct whc_qset *qset) while (qset->ntds) { struct whc_qtd *td; - int t; - t = qset->td_start; td = &qset->qtd[qset->td_start]; status = le32_to_cpu(td->status); diff --git a/drivers/usb/host/xhci-dbgcap.c b/drivers/usb/host/xhci-dbgcap.c index 1fbfd89d0a0f..86cff5c28eff 100644 --- a/drivers/usb/host/xhci-dbgcap.c +++ b/drivers/usb/host/xhci-dbgcap.c @@ -508,16 +508,18 @@ static int xhci_do_dbc_start(struct xhci_hcd *xhci) return 0; } -static void xhci_do_dbc_stop(struct xhci_hcd *xhci) +static int xhci_do_dbc_stop(struct xhci_hcd *xhci) { struct xhci_dbc *dbc = xhci->dbc; if (dbc->state == DS_DISABLED) - return; + return -1; writel(0, &dbc->regs->control); xhci_dbc_mem_cleanup(xhci); dbc->state = DS_DISABLED; + + return 0; } static int xhci_dbc_start(struct xhci_hcd *xhci) @@ -544,6 +546,7 @@ static int xhci_dbc_start(struct xhci_hcd *xhci) static void xhci_dbc_stop(struct xhci_hcd *xhci) { + int ret; unsigned long flags; struct xhci_dbc *dbc = xhci->dbc; struct dbc_port *port = &dbc->port; @@ -556,10 +559,11 @@ static void xhci_dbc_stop(struct xhci_hcd *xhci) xhci_dbc_tty_unregister_device(xhci); spin_lock_irqsave(&dbc->lock, flags); - xhci_do_dbc_stop(xhci); + ret = xhci_do_dbc_stop(xhci); spin_unlock_irqrestore(&dbc->lock, flags); - pm_runtime_put_sync(xhci_to_hcd(xhci)->self.controller); + if (!ret) + pm_runtime_put_sync(xhci_to_hcd(xhci)->self.controller); } static void @@ -909,11 +913,9 @@ static ssize_t dbc_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct xhci_dbc *dbc; struct xhci_hcd *xhci; xhci = hcd_to_xhci(dev_get_drvdata(dev)); - dbc = xhci->dbc; if (!strncmp(buf, "enable", 6)) xhci_dbc_start(xhci); diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index a4b95d019f84..7e2a531ba321 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -1684,4 +1684,15 @@ int xhci_bus_resume(struct usb_hcd *hcd) return 0; } +unsigned long xhci_get_resuming_ports(struct usb_hcd *hcd) +{ + struct xhci_hcd *xhci = hcd_to_xhci(hcd); + struct xhci_bus_state *bus_state; + + bus_state = &xhci->bus_state[hcd_index(hcd)]; + + /* USB3 port wakeups are reported via usb_wakeup_notification() */ + return bus_state->resuming_ports; /* USB2 ports only */ +} + #endif /* CONFIG_PM */ diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index acbd3d7b8828..ef350c33dc4a 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -595,7 +595,7 @@ struct xhci_ring *xhci_stream_id_to_ring( if (!ep->stream_info) return NULL; - if (stream_id > ep->stream_info->num_streams) + if (stream_id >= ep->stream_info->num_streams) return NULL; return ep->stream_info->stream_rings[stream_id]; } @@ -886,12 +886,12 @@ void xhci_free_virt_device(struct xhci_hcd *xhci, int slot_id) dev = xhci->devs[slot_id]; - trace_xhci_free_virt_device(dev); - xhci->dcbaa->dev_context_ptrs[slot_id] = 0; if (!dev) return; + trace_xhci_free_virt_device(dev); + if (dev->tt_info) old_active_eps = dev->tt_info->active_eps; diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index c1b22fc64e38..8dc77e34a859 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -105,6 +105,7 @@ static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen2 = { }; static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen3 = { + .firmware_name = XHCI_RCAR_FIRMWARE_NAME_V3, .init_quirk = xhci_rcar_init_quirk, .plat_start = xhci_rcar_start, .resume_quirk = xhci_rcar_resume_quirk, diff --git a/drivers/usb/host/xhci-rcar.c b/drivers/usb/host/xhci-rcar.c index f33ffc2bc4ed..a6e463715779 100644 --- a/drivers/usb/host/xhci-rcar.c +++ b/drivers/usb/host/xhci-rcar.c @@ -17,9 +17,8 @@ #include "xhci-rcar.h" /* -* - The V3 firmware is for r8a7796 (with good performance) and r8a7795 es2.0 -* or later. -* - The V2 firmware can be used on both r8a7795 (es1.x) and r8a7796. +* - The V3 firmware is for almost all R-Car Gen3 (except r8a7795 ES1.x) +* - The V2 firmware is for r8a7795 ES1.x. * - The V2 firmware is possible to use on R-Car Gen2. However, the V2 causes * performance degradation. So, this driver continues to use the V1 if R-Car * Gen2. @@ -30,6 +29,7 @@ MODULE_FIRMWARE(XHCI_RCAR_FIRMWARE_NAME_V2); MODULE_FIRMWARE(XHCI_RCAR_FIRMWARE_NAME_V3); /*** Register Offset ***/ +#define RCAR_USB3_AXH_STA 0x104 /* AXI Host Control Status */ #define RCAR_USB3_INT_ENA 0x224 /* Interrupt Enable */ #define RCAR_USB3_DL_CTRL 0x250 /* FW Download Control & Status */ #define RCAR_USB3_FW_DATA0 0x258 /* FW Data0 */ @@ -42,6 +42,12 @@ MODULE_FIRMWARE(XHCI_RCAR_FIRMWARE_NAME_V3); #define RCAR_USB3_TX_POL 0xab8 /* USB3.0 TX Polarity */ /*** Register Settings ***/ +/* AXI Host Control Status */ +#define RCAR_USB3_AXH_STA_B3_PLL_ACTIVE 0x00010000 +#define RCAR_USB3_AXH_STA_B2_PLL_ACTIVE 0x00000001 +#define RCAR_USB3_AXH_STA_PLL_ACTIVE_MASK (RCAR_USB3_AXH_STA_B3_PLL_ACTIVE | \ + RCAR_USB3_AXH_STA_B2_PLL_ACTIVE) + /* Interrupt Enable */ #define RCAR_USB3_INT_XHC_ENA 0x00000001 #define RCAR_USB3_INT_PME_ENA 0x00000002 @@ -75,18 +81,6 @@ static const struct soc_device_attribute rcar_quirks_match[] = { .soc_id = "r8a7795", .revision = "ES1.*", .data = (void *)RCAR_XHCI_FIRMWARE_V2, }, - { - .soc_id = "r8a7795", - .data = (void *)RCAR_XHCI_FIRMWARE_V3, - }, - { - .soc_id = "r8a7796", - .data = (void *)RCAR_XHCI_FIRMWARE_V3, - }, - { - .soc_id = "r8a77965", - .data = (void *)RCAR_XHCI_FIRMWARE_V3, - }, { /* sentinel */ }, }; @@ -213,6 +207,22 @@ static int xhci_rcar_download_firmware(struct usb_hcd *hcd) return retval; } +static bool xhci_rcar_wait_for_pll_active(struct usb_hcd *hcd) +{ + int timeout = 1000; + u32 val, mask = RCAR_USB3_AXH_STA_PLL_ACTIVE_MASK; + + while (timeout > 0) { + val = readl(hcd->regs + RCAR_USB3_AXH_STA); + if ((val & mask) == mask) + return true; + udelay(1); + timeout--; + } + + return false; +} + /* This function needs to initialize a "phy" of usb before */ int xhci_rcar_init_quirk(struct usb_hcd *hcd) { @@ -233,6 +243,9 @@ int xhci_rcar_init_quirk(struct usb_hcd *hcd) xhci_rcar_is_gen3(hcd->self.controller)) xhci->quirks |= XHCI_NO_64BIT_SUPPORT; + if (!xhci_rcar_wait_for_pll_active(hcd)) + return -ETIMEDOUT; + return xhci_rcar_download_firmware(hcd); } diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c index a8c1d073cba0..4b463e5202a4 100644 --- a/drivers/usb/host/xhci-tegra.c +++ b/drivers/usb/host/xhci-tegra.c @@ -481,7 +481,7 @@ static void tegra_xusb_mbox_handle(struct tegra_xusb *tegra, unsigned long mask; unsigned int port; bool idle, enable; - int err; + int err = 0; memset(&rsp, 0, sizeof(rsp)); @@ -1223,10 +1223,10 @@ disable_rpm: pm_runtime_disable(&pdev->dev); usb_put_hcd(tegra->hcd); disable_xusbc: - if (!&pdev->dev.pm_domain) + if (!pdev->dev.pm_domain) tegra_powergate_power_off(TEGRA_POWERGATE_XUSBC); disable_xusba: - if (!&pdev->dev.pm_domain) + if (!pdev->dev.pm_domain) tegra_powergate_power_off(TEGRA_POWERGATE_XUSBA); put_padctl: tegra_xusb_padctl_put(tegra->padctl); diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h index 410544ffe78f..88b427434bd8 100644 --- a/drivers/usb/host/xhci-trace.h +++ b/drivers/usb/host/xhci-trace.h @@ -171,6 +171,37 @@ DEFINE_EVENT(xhci_log_trb, xhci_dbc_gadget_ep_queue, TP_ARGS(ring, trb) ); +DECLARE_EVENT_CLASS(xhci_log_free_virt_dev, + TP_PROTO(struct xhci_virt_device *vdev), + TP_ARGS(vdev), + TP_STRUCT__entry( + __field(void *, vdev) + __field(unsigned long long, out_ctx) + __field(unsigned long long, in_ctx) + __field(u8, fake_port) + __field(u8, real_port) + __field(u16, current_mel) + + ), + TP_fast_assign( + __entry->vdev = vdev; + __entry->in_ctx = (unsigned long long) vdev->in_ctx->dma; + __entry->out_ctx = (unsigned long long) vdev->out_ctx->dma; + __entry->fake_port = (u8) vdev->fake_port; + __entry->real_port = (u8) vdev->real_port; + __entry->current_mel = (u16) vdev->current_mel; + ), + TP_printk("vdev %p ctx %llx | %llx fake_port %d real_port %d current_mel %d", + __entry->vdev, __entry->in_ctx, __entry->out_ctx, + __entry->fake_port, __entry->real_port, __entry->current_mel + ) +); + +DEFINE_EVENT(xhci_log_free_virt_dev, xhci_free_virt_device, + TP_PROTO(struct xhci_virt_device *vdev), + TP_ARGS(vdev) +); + DECLARE_EVENT_CLASS(xhci_log_virt_dev, TP_PROTO(struct xhci_virt_device *vdev), TP_ARGS(vdev), @@ -208,11 +239,6 @@ DEFINE_EVENT(xhci_log_virt_dev, xhci_alloc_virt_device, TP_ARGS(vdev) ); -DEFINE_EVENT(xhci_log_virt_dev, xhci_free_virt_device, - TP_PROTO(struct xhci_virt_device *vdev), - TP_ARGS(vdev) -); - DEFINE_EVENT(xhci_log_virt_dev, xhci_setup_device, TP_PROTO(struct xhci_virt_device *vdev), TP_ARGS(vdev) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 8c8da2d657fa..61f48b17e57b 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -908,6 +908,41 @@ static void xhci_disable_port_wake_on_bits(struct xhci_hcd *xhci) spin_unlock_irqrestore(&xhci->lock, flags); } +static bool xhci_pending_portevent(struct xhci_hcd *xhci) +{ + struct xhci_port **ports; + int port_index; + u32 status; + u32 portsc; + + status = readl(&xhci->op_regs->status); + if (status & STS_EINT) + return true; + /* + * Checking STS_EINT is not enough as there is a lag between a change + * bit being set and the Port Status Change Event that it generated + * being written to the Event Ring. See note in xhci 1.1 section 4.19.2. + */ + + port_index = xhci->usb2_rhub.num_ports; + ports = xhci->usb2_rhub.ports; + while (port_index--) { + portsc = readl(ports[port_index]->addr); + if (portsc & PORT_CHANGE_MASK || + (portsc & PORT_PLS_MASK) == XDEV_RESUME) + return true; + } + port_index = xhci->usb3_rhub.num_ports; + ports = xhci->usb3_rhub.ports; + while (port_index--) { + portsc = readl(ports[port_index]->addr); + if (portsc & PORT_CHANGE_MASK || + (portsc & PORT_PLS_MASK) == XDEV_RESUME) + return true; + } + return false; +} + /* * Stop HC (not bus-specific) * @@ -1009,7 +1044,7 @@ EXPORT_SYMBOL_GPL(xhci_suspend); */ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) { - u32 command, temp = 0, status; + u32 command, temp = 0; struct usb_hcd *hcd = xhci_to_hcd(xhci); struct usb_hcd *secondary_hcd; int retval = 0; @@ -1043,8 +1078,13 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) command = readl(&xhci->op_regs->command); command |= CMD_CRS; writel(command, &xhci->op_regs->command); + /* + * Some controllers take up to 55+ ms to complete the controller + * restore so setting the timeout to 100ms. Xhci specification + * doesn't mention any timeout value. + */ if (xhci_handshake(&xhci->op_regs->status, - STS_RESTORE, 0, 10 * 1000)) { + STS_RESTORE, 0, 100 * 1000)) { xhci_warn(xhci, "WARN: xHC restore state timeout\n"); spin_unlock_irq(&xhci->lock); return -ETIMEDOUT; @@ -1134,8 +1174,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) done: if (retval == 0) { /* Resume root hubs only when have pending events. */ - status = readl(&xhci->op_regs->status); - if (status & STS_EINT) { + if (xhci_pending_portevent(xhci)) { usb_hcd_resume_root_hub(xhci->shared_hcd); usb_hcd_resume_root_hub(hcd); } @@ -3012,6 +3051,7 @@ static void xhci_endpoint_reset(struct usb_hcd *hcd, if (!list_empty(&ep->ring->td_list)) { dev_err(&udev->dev, "EP not empty, refuse reset\n"); spin_unlock_irqrestore(&xhci->lock, flags); + xhci_free_command(xhci, cfg_cmd); goto cleanup; } xhci_queue_stop_endpoint(xhci, stop_cmd, udev->slot_id, ep_index, 0); @@ -5081,6 +5121,7 @@ static const struct hc_driver xhci_hc_driver = { .hub_status_data = xhci_hub_status_data, .bus_suspend = xhci_bus_suspend, .bus_resume = xhci_bus_resume, + .get_resuming_ports = xhci_get_resuming_ports, /* * call back when device connected and addressed diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 939e2f86b595..6230a578324c 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -382,6 +382,10 @@ struct xhci_op_regs { #define PORT_PLC (1 << 22) /* port configure error change - port failed to configure its link partner */ #define PORT_CEC (1 << 23) +#define PORT_CHANGE_MASK (PORT_CSC | PORT_PEC | PORT_WRC | PORT_OCC | \ + PORT_RC | PORT_PLC | PORT_CEC) + + /* Cold Attach Status - xHC can set this bit to report device attached during * Sx state. Warm port reset should be perfomed to clear this bit and move port * to connected state. @@ -2110,9 +2114,11 @@ void xhci_hc_died(struct xhci_hcd *xhci); #ifdef CONFIG_PM int xhci_bus_suspend(struct usb_hcd *hcd); int xhci_bus_resume(struct usb_hcd *hcd); +unsigned long xhci_get_resuming_ports(struct usb_hcd *hcd); #else #define xhci_bus_suspend NULL #define xhci_bus_resume NULL +#define xhci_get_resuming_ports NULL #endif /* CONFIG_PM */ u32 xhci_port_state_to_neutral(u32 state); diff --git a/drivers/usb/isp1760/isp1760-hcd.c b/drivers/usb/isp1760/isp1760-hcd.c index 1045521be293..8142c6b4c4cf 100644 --- a/drivers/usb/isp1760/isp1760-hcd.c +++ b/drivers/usb/isp1760/isp1760-hcd.c @@ -1817,7 +1817,6 @@ static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq, u32 temp, status; unsigned long flags; int retval = 0; - unsigned selector; /* * FIXME: support SetPortFeatures USB_PORT_FEAT_INDICATOR. @@ -2010,7 +2009,6 @@ static int isp1760_hub_control(struct usb_hcd *hcd, u16 typeReq, } break; case SetPortFeature: - selector = wIndex >> 8; wIndex &= 0xff; if (!wIndex || wIndex > ports) goto error; diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c index b3160afe0458..9465fb95d70a 100644 --- a/drivers/usb/misc/adutux.c +++ b/drivers/usb/misc/adutux.c @@ -155,11 +155,12 @@ static void adu_interrupt_in_callback(struct urb *urb) { struct adu_device *dev = urb->context; int status = urb->status; + unsigned long flags; adu_debug_data(&dev->udev->dev, __func__, urb->actual_length, urb->transfer_buffer); - spin_lock(&dev->buflock); + spin_lock_irqsave(&dev->buflock, flags); if (status != 0) { if ((status != -ENOENT) && (status != -ECONNRESET) && @@ -190,7 +191,7 @@ static void adu_interrupt_in_callback(struct urb *urb) exit: dev->read_urb_finished = 1; - spin_unlock(&dev->buflock); + spin_unlock_irqrestore(&dev->buflock, flags); /* always wake up so we recover from errors */ wake_up_interruptible(&dev->read_wait); } @@ -199,6 +200,7 @@ static void adu_interrupt_out_callback(struct urb *urb) { struct adu_device *dev = urb->context; int status = urb->status; + unsigned long flags; adu_debug_data(&dev->udev->dev, __func__, urb->actual_length, urb->transfer_buffer); @@ -213,10 +215,10 @@ static void adu_interrupt_out_callback(struct urb *urb) return; } - spin_lock(&dev->buflock); + spin_lock_irqsave(&dev->buflock, flags); dev->out_urb_finished = 1; wake_up(&dev->write_wait); - spin_unlock(&dev->buflock); + spin_unlock_irqrestore(&dev->buflock, flags); } static int adu_open(struct inode *inode, struct file *file) diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c index b3eb8b989bd4..d746c26a8055 100644 --- a/drivers/usb/misc/appledisplay.c +++ b/drivers/usb/misc/appledisplay.c @@ -89,6 +89,7 @@ static void appledisplay_complete(struct urb *urb) dev_err(dev, "OVERFLOW with data length %d, actual length is %d\n", ACD_URB_BUFFER_LEN, pdata->urb->actual_length); + /* fall through */ case -ECONNRESET: case -ENOENT: case -ESHUTDOWN: diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c index 8d33187ce2af..c2991b8a65ce 100644 --- a/drivers/usb/misc/iowarrior.c +++ b/drivers/usb/misc/iowarrior.c @@ -81,7 +81,6 @@ struct iowarrior { atomic_t write_busy; /* number of write-urbs submitted */ atomic_t read_idx; atomic_t intr_idx; - spinlock_t intr_idx_lock; /* protects intr_idx */ atomic_t overflow_flag; /* signals an index 'rollover' */ int present; /* this is 1 as long as the device is connected */ int opened; /* this is 1 if the device is currently open */ @@ -166,7 +165,6 @@ static void iowarrior_callback(struct urb *urb) goto exit; } - spin_lock(&dev->intr_idx_lock); intr_idx = atomic_read(&dev->intr_idx); /* aux_idx become previous intr_idx */ aux_idx = (intr_idx == 0) ? (MAX_INTERRUPT_BUFFER - 1) : (intr_idx - 1); @@ -181,7 +179,6 @@ static void iowarrior_callback(struct urb *urb) (dev->read_queue + offset, urb->transfer_buffer, dev->report_size)) { /* equal values on interface 0 will be ignored */ - spin_unlock(&dev->intr_idx_lock); goto exit; } } @@ -202,7 +199,6 @@ static void iowarrior_callback(struct urb *urb) *(dev->read_queue + offset + (dev->report_size)) = dev->serial_number++; atomic_set(&dev->intr_idx, aux_idx); - spin_unlock(&dev->intr_idx_lock); /* tell the blocking read about the new data */ wake_up_interruptible(&dev->read_wait); @@ -762,7 +758,6 @@ static int iowarrior_probe(struct usb_interface *interface, atomic_set(&dev->intr_idx, 0); atomic_set(&dev->read_idx, 0); - spin_lock_init(&dev->intr_idx_lock); atomic_set(&dev->overflow_flag, 0); init_waitqueue_head(&dev->read_wait); atomic_set(&dev->write_busy, 0); diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c index c2e255f02a72..006762b72ff5 100644 --- a/drivers/usb/misc/ldusb.c +++ b/drivers/usb/misc/ldusb.c @@ -225,6 +225,7 @@ static void ld_usb_interrupt_in_callback(struct urb *urb) size_t *actual_buffer; unsigned int next_ring_head; int status = urb->status; + unsigned long flags; int retval; if (status) { @@ -236,12 +237,12 @@ static void ld_usb_interrupt_in_callback(struct urb *urb) dev_dbg(&dev->intf->dev, "%s: nonzero status received: %d\n", __func__, status); - spin_lock(&dev->rbsl); + spin_lock_irqsave(&dev->rbsl, flags); goto resubmit; /* maybe we can recover */ } } - spin_lock(&dev->rbsl); + spin_lock_irqsave(&dev->rbsl, flags); if (urb->actual_length > 0) { next_ring_head = (dev->ring_head+1) % ring_buffer_size; if (next_ring_head != dev->ring_tail) { @@ -270,7 +271,7 @@ resubmit: dev->buffer_overflow = 1; } } - spin_unlock(&dev->rbsl); + spin_unlock_irqrestore(&dev->rbsl, flags); exit: dev->interrupt_in_done = 1; wake_up_interruptible(&dev->read_wait); diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c index bf47bd8bc76f..006cf13b2199 100644 --- a/drivers/usb/misc/legousbtower.c +++ b/drivers/usb/misc/legousbtower.c @@ -722,6 +722,7 @@ static void tower_interrupt_in_callback (struct urb *urb) struct lego_usb_tower *dev = urb->context; int status = urb->status; int retval; + unsigned long flags; lego_usb_tower_debug_data(&dev->udev->dev, __func__, urb->actual_length, urb->transfer_buffer); @@ -740,7 +741,7 @@ static void tower_interrupt_in_callback (struct urb *urb) } if (urb->actual_length > 0) { - spin_lock (&dev->read_buffer_lock); + spin_lock_irqsave(&dev->read_buffer_lock, flags); if (dev->read_buffer_length + urb->actual_length < read_buffer_size) { memcpy (dev->read_buffer + dev->read_buffer_length, dev->interrupt_in_buffer, @@ -753,7 +754,7 @@ static void tower_interrupt_in_callback (struct urb *urb) pr_warn("read_buffer overflow, %d bytes dropped\n", urb->actual_length); } - spin_unlock (&dev->read_buffer_lock); + spin_unlock_irqrestore(&dev->read_buffer_lock, flags); } resubmit: diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c index f92c5df26320..3198d0477cf8 100644 --- a/drivers/usb/misc/sisusbvga/sisusb.c +++ b/drivers/usb/misc/sisusbvga/sisusb.c @@ -1750,7 +1750,7 @@ static int sisusb_setup_screen(struct sisusb_usb_data *sisusb, static int sisusb_set_default_mode(struct sisusb_usb_data *sisusb, int touchengines) { - int ret = 0, i, j, modex, modey, bpp, du; + int ret = 0, i, j, modex, bpp, du; u8 sr31, cr63, tmp8; static const char attrdata[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, @@ -1773,7 +1773,7 @@ static int sisusb_set_default_mode(struct sisusb_usb_data *sisusb, 0x00 }; - modex = 640; modey = 480; bpp = 2; + modex = 640; bpp = 2; GETIREG(SISSR, 0x31, &sr31); GETIREG(SISCR, 0x63, &cr63); diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 9e1142b8b91b..c7f82310e73e 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -1082,11 +1082,12 @@ static void ctrl_complete(struct urb *urb) struct usb_ctrlrequest *reqp; struct subcase *subcase; int status = urb->status; + unsigned long flags; reqp = (struct usb_ctrlrequest *)urb->setup_packet; subcase = container_of(reqp, struct subcase, setup); - spin_lock(&ctx->lock); + spin_lock_irqsave(&ctx->lock, flags); ctx->count--; ctx->pending--; @@ -1185,7 +1186,7 @@ error: /* signal completion when nothing's queued */ if (ctx->pending == 0) complete(&ctx->complete); - spin_unlock(&ctx->lock); + spin_unlock_irqrestore(&ctx->lock, flags); } static int @@ -1917,8 +1918,9 @@ struct transfer_context { static void complicated_callback(struct urb *urb) { struct transfer_context *ctx = urb->context; + unsigned long flags; - spin_lock(&ctx->lock); + spin_lock_irqsave(&ctx->lock, flags); ctx->count--; ctx->packet_count += urb->number_of_packets; @@ -1958,7 +1960,7 @@ static void complicated_callback(struct urb *urb) complete(&ctx->done); } done: - spin_unlock(&ctx->lock); + spin_unlock_irqrestore(&ctx->lock, flags); } static struct urb *iso_alloc_urb( diff --git a/drivers/usb/misc/uss720.c b/drivers/usb/misc/uss720.c index de9a502491c2..82f220631bd7 100644 --- a/drivers/usb/misc/uss720.c +++ b/drivers/usb/misc/uss720.c @@ -748,13 +748,11 @@ static void uss720_disconnect(struct usb_interface *intf) { struct parport *pp = usb_get_intfdata(intf); struct parport_uss720_private *priv; - struct usb_device *usbdev; dev_dbg(&intf->dev, "disconnect\n"); usb_set_intfdata(intf, NULL); if (pp) { priv = pp->private_data; - usbdev = priv->usbdev; priv->usbdev = NULL; priv->pp = NULL; dev_dbg(&intf->dev, "parport_remove_port\n"); diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c index 8abb6cbbd98a..3be40eaa1ac9 100644 --- a/drivers/usb/misc/yurex.c +++ b/drivers/usb/misc/yurex.c @@ -396,8 +396,7 @@ static ssize_t yurex_read(struct file *file, char __user *buffer, size_t count, loff_t *ppos) { struct usb_yurex *dev; - int retval = 0; - int bytes_read = 0; + int len = 0; char in_buffer[20]; unsigned long flags; @@ -405,26 +404,16 @@ static ssize_t yurex_read(struct file *file, char __user *buffer, size_t count, mutex_lock(&dev->io_mutex); if (!dev->interface) { /* already disconnected */ - retval = -ENODEV; - goto exit; + mutex_unlock(&dev->io_mutex); + return -ENODEV; } spin_lock_irqsave(&dev->lock, flags); - bytes_read = snprintf(in_buffer, 20, "%lld\n", dev->bbu); + len = snprintf(in_buffer, 20, "%lld\n", dev->bbu); spin_unlock_irqrestore(&dev->lock, flags); - - if (*ppos < bytes_read) { - if (copy_to_user(buffer, in_buffer + *ppos, bytes_read - *ppos)) - retval = -EFAULT; - else { - retval = bytes_read - *ppos; - *ppos += bytes_read; - } - } - -exit: mutex_unlock(&dev->io_mutex); - return retval; + + return simple_read_from_buffer(buffer, count, ppos, in_buffer, len); } static ssize_t yurex_write(struct file *file, const char __user *user_buffer, diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c index ad2c082bd0fb..ac2b4fcc265f 100644 --- a/drivers/usb/mon/mon_bin.c +++ b/drivers/usb/mon/mon_bin.c @@ -95,8 +95,8 @@ struct mon_bin_hdr { unsigned short busnum; /* Bus number */ char flag_setup; char flag_data; - s64 ts_sec; /* getnstimeofday64 */ - s32 ts_usec; /* getnstimeofday64 */ + s64 ts_sec; /* ktime_get_real_ts64 */ + s32 ts_usec; /* ktime_get_real_ts64 */ int status; unsigned int len_urb; /* Length of data (submitted or actual) */ unsigned int len_cap; /* Delivered length */ @@ -497,7 +497,7 @@ static void mon_bin_event(struct mon_reader_bin *rp, struct urb *urb, struct mon_bin_hdr *ep; char data_tag = 0; - getnstimeofday64(&ts); + ktime_get_real_ts64(&ts); spin_lock_irqsave(&rp->b_lock, flags); @@ -637,7 +637,7 @@ static void mon_bin_error(void *data, struct urb *urb, int error) unsigned int offset; struct mon_bin_hdr *ep; - getnstimeofday64(&ts); + ktime_get_real_ts64(&ts); spin_lock_irqsave(&rp->b_lock, flags); diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index fb871eabcc10..df827ff57b0d 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -237,7 +237,7 @@ static int dsps_check_status(struct musb *musb, void *unused) } musb_writeb(musb->mregs, MUSB_DEVCTL, 0); skip_session = 1; - /* fall */ + /* fall through */ case OTG_STATE_A_IDLE: case OTG_STATE_B_IDLE: diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 8000c7c02f79..b59ce9ad14ce 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -378,6 +378,7 @@ static void musb_advance_schedule(struct musb *musb, struct urb *urb, qh = first_qh(head); break; } + /* else: fall through */ case USB_ENDPOINT_XFER_ISOC: case USB_ENDPOINT_XFER_INT: diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c index 900875f326d7..f7c96d209eda 100644 --- a/drivers/usb/phy/phy-fsl-usb.c +++ b/drivers/usb/phy/phy-fsl-usb.c @@ -861,6 +861,7 @@ int usb_otg_start(struct platform_device *pdev) if (pdata->init && pdata->init(pdev) != 0) return -EINVAL; +#ifdef CONFIG_PPC32 if (pdata->big_endian_mmio) { _fsl_readl = _fsl_readl_be; _fsl_writel = _fsl_writel_be; @@ -868,6 +869,7 @@ int usb_otg_start(struct platform_device *pdev) _fsl_readl = _fsl_readl_le; _fsl_writel = _fsl_writel_le; } +#endif /* request irq */ p_otg->irq = platform_get_irq(pdev, 0); @@ -958,7 +960,7 @@ int usb_otg_start(struct platform_device *pdev) /* * state file in sysfs */ -static int show_fsl_usb2_otg_state(struct device *dev, +static ssize_t show_fsl_usb2_otg_state(struct device *dev, struct device_attribute *attr, char *buf) { struct otg_fsm *fsm = &fsl_otg_dev->fsm; diff --git a/drivers/usb/renesas_usbhs/Kconfig b/drivers/usb/renesas_usbhs/Kconfig index b26d7c339c05..7fdbff23ae8b 100644 --- a/drivers/usb/renesas_usbhs/Kconfig +++ b/drivers/usb/renesas_usbhs/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 # # Renesas USBHS Controller Drivers # diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c index 33d059c40616..59cac40aafcc 100644 --- a/drivers/usb/renesas_usbhs/mod_gadget.c +++ b/drivers/usb/renesas_usbhs/mod_gadget.c @@ -502,6 +502,7 @@ static int usbhsg_irq_ctrl_stage(struct usbhs_priv *priv, case READ_STATUS_STAGE: case WRITE_STATUS_STAGE: usbhs_dcp_control_transfer_done(pipe); + /* fall through */ default: return ret; } diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c index bdd7a5ad3bf1..3bb1fff02bed 100644 --- a/drivers/usb/serial/ch341.c +++ b/drivers/usb/serial/ch341.c @@ -128,7 +128,7 @@ static int ch341_control_in(struct usb_device *dev, r = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), request, USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, value, index, buf, bufsize, DEFAULT_TIMEOUT); - if (r < bufsize) { + if (r < (int)bufsize) { if (r >= 0) { dev_err(&dev->dev, "short control message received (%d < %u)\n", diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index eb6c26cbe579..c0777a374a88 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -95,6 +95,9 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x10C4, 0x8156) }, /* B&G H3000 link cable */ { USB_DEVICE(0x10C4, 0x815E) }, /* Helicomm IP-Link 1220-DVM */ { USB_DEVICE(0x10C4, 0x815F) }, /* Timewave HamLinkUSB */ + { USB_DEVICE(0x10C4, 0x817C) }, /* CESINEL MEDCAL N Power Quality Monitor */ + { USB_DEVICE(0x10C4, 0x817D) }, /* CESINEL MEDCAL NT Power Quality Monitor */ + { USB_DEVICE(0x10C4, 0x817E) }, /* CESINEL MEDCAL S Power Quality Monitor */ { USB_DEVICE(0x10C4, 0x818B) }, /* AVIT Research USB to TTL */ { USB_DEVICE(0x10C4, 0x819F) }, /* MJS USB Toslink Switcher */ { USB_DEVICE(0x10C4, 0x81A6) }, /* ThinkOptics WavIt */ @@ -112,6 +115,9 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x10C4, 0x826B) }, /* Cygnal Integrated Products, Inc., Fasttrax GPS demonstration module */ { USB_DEVICE(0x10C4, 0x8281) }, /* Nanotec Plug & Drive */ { USB_DEVICE(0x10C4, 0x8293) }, /* Telegesis ETRX2USB */ + { USB_DEVICE(0x10C4, 0x82EF) }, /* CESINEL FALCO 6105 AC Power Supply */ + { USB_DEVICE(0x10C4, 0x82F1) }, /* CESINEL MEDCAL EFD Earth Fault Detector */ + { USB_DEVICE(0x10C4, 0x82F2) }, /* CESINEL MEDCAL ST Network Analyzer */ { USB_DEVICE(0x10C4, 0x82F4) }, /* Starizona MicroTouch */ { USB_DEVICE(0x10C4, 0x82F9) }, /* Procyon AVS */ { USB_DEVICE(0x10C4, 0x8341) }, /* Siemens MC35PU GPRS Modem */ @@ -124,7 +130,9 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x10C4, 0x8470) }, /* Juniper Networks BX Series System Console */ { USB_DEVICE(0x10C4, 0x8477) }, /* Balluff RFID */ { USB_DEVICE(0x10C4, 0x84B6) }, /* Starizona Hyperion */ + { USB_DEVICE(0x10C4, 0x851E) }, /* CESINEL MEDCAL PT Network Analyzer */ { USB_DEVICE(0x10C4, 0x85A7) }, /* LifeScan OneTouch Verio IQ */ + { USB_DEVICE(0x10C4, 0x85B8) }, /* CESINEL ReCon T Energy Logger */ { USB_DEVICE(0x10C4, 0x85EA) }, /* AC-Services IBUS-IF */ { USB_DEVICE(0x10C4, 0x85EB) }, /* AC-Services CIS-IBUS */ { USB_DEVICE(0x10C4, 0x85F8) }, /* Virtenio Preon32 */ @@ -134,17 +142,24 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x10C4, 0x8857) }, /* CEL EM357 ZigBee USB Stick */ { USB_DEVICE(0x10C4, 0x88A4) }, /* MMB Networks ZigBee USB Device */ { USB_DEVICE(0x10C4, 0x88A5) }, /* Planet Innovation Ingeni ZigBee USB Device */ + { USB_DEVICE(0x10C4, 0x88FB) }, /* CESINEL MEDCAL STII Network Analyzer */ + { USB_DEVICE(0x10C4, 0x8938) }, /* CESINEL MEDCAL S II Network Analyzer */ { USB_DEVICE(0x10C4, 0x8946) }, /* Ketra N1 Wireless Interface */ { USB_DEVICE(0x10C4, 0x8962) }, /* Brim Brothers charging dock */ { USB_DEVICE(0x10C4, 0x8977) }, /* CEL MeshWorks DevKit Device */ { USB_DEVICE(0x10C4, 0x8998) }, /* KCF Technologies PRN */ + { USB_DEVICE(0x10C4, 0x89A4) }, /* CESINEL FTBC Flexible Thyristor Bridge Controller */ + { USB_DEVICE(0x10C4, 0x89FB) }, /* Qivicon ZigBee USB Radio Stick */ { USB_DEVICE(0x10C4, 0x8A2A) }, /* HubZ dual ZigBee and Z-Wave dongle */ { USB_DEVICE(0x10C4, 0x8A5E) }, /* CEL EM3588 ZigBee USB Stick Long Range */ { USB_DEVICE(0x10C4, 0x8B34) }, /* Qivicon ZigBee USB Radio Stick */ { USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */ { USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */ + { USB_DEVICE(0x10C4, 0xEA63) }, /* Silicon Labs Windows Update (CP2101-4/CP2102N) */ { USB_DEVICE(0x10C4, 0xEA70) }, /* Silicon Labs factory default */ { USB_DEVICE(0x10C4, 0xEA71) }, /* Infinity GPS-MIC-1 Radio Monophone */ + { USB_DEVICE(0x10C4, 0xEA7A) }, /* Silicon Labs Windows Update (CP2105) */ + { USB_DEVICE(0x10C4, 0xEA7B) }, /* Silicon Labs Windows Update (CP2108) */ { USB_DEVICE(0x10C4, 0xF001) }, /* Elan Digital Systems USBscope50 */ { USB_DEVICE(0x10C4, 0xF002) }, /* Elan Digital Systems USBwave12 */ { USB_DEVICE(0x10C4, 0xF003) }, /* Elan Digital Systems USBpulse100 */ @@ -224,11 +239,14 @@ MODULE_DEVICE_TABLE(usb, id_table); struct cp210x_serial_private { #ifdef CONFIG_GPIOLIB struct gpio_chip gc; - u8 config; - u8 gpio_mode; bool gpio_registered; + u8 gpio_pushpull; + u8 gpio_altfunc; + u8 gpio_input; #endif u8 partnum; + speed_t max_speed; + bool use_actual_rate; }; struct cp210x_port_private { @@ -341,6 +359,7 @@ static struct usb_serial_driver * const serial_drivers[] = { #define CONTROL_WRITE_RTS 0x0200 /* CP210X_VENDOR_SPECIFIC values */ +#define CP210X_READ_2NCONFIG 0x000E #define CP210X_READ_LATCH 0x00C2 #define CP210X_GET_PARTNUM 0x370B #define CP210X_GET_PORTCONFIG 0x370C @@ -354,6 +373,9 @@ static struct usb_serial_driver * const serial_drivers[] = { #define CP210X_PARTNUM_CP2104 0x04 #define CP210X_PARTNUM_CP2105 0x05 #define CP210X_PARTNUM_CP2108 0x08 +#define CP210X_PARTNUM_CP2102N_QFN28 0x20 +#define CP210X_PARTNUM_CP2102N_QFN24 0x21 +#define CP210X_PARTNUM_CP2102N_QFN20 0x22 #define CP210X_PARTNUM_UNKNOWN 0xFF /* CP210X_GET_COMM_STATUS returns these 0x13 bytes */ @@ -447,6 +469,12 @@ struct cp210x_config { #define CP2105_GPIO1_RXLED_MODE BIT(1) #define CP2105_GPIO1_RS485_MODE BIT(2) +/* CP2102N configuration array indices */ +#define CP210X_2NCONFIG_CONFIG_VERSION_IDX 2 +#define CP210X_2NCONFIG_GPIO_MODE_IDX 581 +#define CP210X_2NCONFIG_GPIO_RSTLATCH_IDX 587 +#define CP210X_2NCONFIG_GPIO_CONTROL_IDX 600 + /* CP210X_VENDOR_SPECIFIC, CP210X_WRITE_LATCH call writes these 0x2 bytes. */ struct cp210x_gpio_write { u8 mask; @@ -752,48 +780,6 @@ static int cp210x_get_line_ctl(struct usb_serial_port *port, u16 *ctl) return 0; } -/* - * cp210x_quantise_baudrate - * Quantises the baud rate as per AN205 Table 1 - */ -static unsigned int cp210x_quantise_baudrate(unsigned int baud) -{ - if (baud <= 300) - baud = 300; - else if (baud <= 600) baud = 600; - else if (baud <= 1200) baud = 1200; - else if (baud <= 1800) baud = 1800; - else if (baud <= 2400) baud = 2400; - else if (baud <= 4000) baud = 4000; - else if (baud <= 4803) baud = 4800; - else if (baud <= 7207) baud = 7200; - else if (baud <= 9612) baud = 9600; - else if (baud <= 14428) baud = 14400; - else if (baud <= 16062) baud = 16000; - else if (baud <= 19250) baud = 19200; - else if (baud <= 28912) baud = 28800; - else if (baud <= 38601) baud = 38400; - else if (baud <= 51558) baud = 51200; - else if (baud <= 56280) baud = 56000; - else if (baud <= 58053) baud = 57600; - else if (baud <= 64111) baud = 64000; - else if (baud <= 77608) baud = 76800; - else if (baud <= 117028) baud = 115200; - else if (baud <= 129347) baud = 128000; - else if (baud <= 156868) baud = 153600; - else if (baud <= 237832) baud = 230400; - else if (baud <= 254234) baud = 250000; - else if (baud <= 273066) baud = 256000; - else if (baud <= 491520) baud = 460800; - else if (baud <= 567138) baud = 500000; - else if (baud <= 670254) baud = 576000; - else if (baud < 1000000) - baud = 921600; - else if (baud > 2000000) - baud = 2000000; - return baud; -} - static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *port) { int result; @@ -1013,6 +999,75 @@ static void cp210x_get_termios_port(struct usb_serial_port *port, *cflagp = cflag; } +struct cp210x_rate { + speed_t rate; + speed_t high; +}; + +static const struct cp210x_rate cp210x_an205_table1[] = { + { 300, 300 }, + { 600, 600 }, + { 1200, 1200 }, + { 1800, 1800 }, + { 2400, 2400 }, + { 4000, 4000 }, + { 4800, 4803 }, + { 7200, 7207 }, + { 9600, 9612 }, + { 14400, 14428 }, + { 16000, 16062 }, + { 19200, 19250 }, + { 28800, 28912 }, + { 38400, 38601 }, + { 51200, 51558 }, + { 56000, 56280 }, + { 57600, 58053 }, + { 64000, 64111 }, + { 76800, 77608 }, + { 115200, 117028 }, + { 128000, 129347 }, + { 153600, 156868 }, + { 230400, 237832 }, + { 250000, 254234 }, + { 256000, 273066 }, + { 460800, 491520 }, + { 500000, 567138 }, + { 576000, 670254 }, + { 921600, UINT_MAX } +}; + +/* + * Quantises the baud rate as per AN205 Table 1 + */ +static speed_t cp210x_get_an205_rate(speed_t baud) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(cp210x_an205_table1); ++i) { + if (baud <= cp210x_an205_table1[i].high) + break; + } + + return cp210x_an205_table1[i].rate; +} + +static speed_t cp210x_get_actual_rate(struct usb_serial *serial, speed_t baud) +{ + struct cp210x_serial_private *priv = usb_get_serial_data(serial); + unsigned int prescale = 1; + unsigned int div; + + baud = clamp(baud, 300u, priv->max_speed); + + if (baud <= 365) + prescale = 4; + + div = DIV_ROUND_CLOSEST(48000000, 2 * prescale * baud); + baud = 48000000 / (2 * prescale * div); + + return baud; +} + /* * CP2101 supports the following baud rates: * @@ -1042,16 +1097,24 @@ static void cp210x_get_termios_port(struct usb_serial_port *port, static void cp210x_change_speed(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios) { + struct usb_serial *serial = port->serial; + struct cp210x_serial_private *priv = usb_get_serial_data(serial); u32 baud; baud = tty->termios.c_ospeed; - /* This maps the requested rate to a rate valid on cp2102 or cp2103, - * or to an arbitrary rate in [1M,2M]. + /* + * This maps the requested rate to the actual rate, a valid rate on + * cp2102 or cp2103, or to an arbitrary rate in [1M, max_speed]. * * NOTE: B0 is not implemented. */ - baud = cp210x_quantise_baudrate(baud); + if (priv->use_actual_rate) + baud = cp210x_get_actual_rate(serial, baud); + else if (baud < 1000000) + baud = cp210x_get_an205_rate(baud); + else if (baud > priv->max_speed) + baud = priv->max_speed; dev_dbg(&port->dev, "%s - setting baud rate to %u\n", __func__, baud); if (cp210x_write_u32_reg(port, CP210X_SET_BAUDRATE, baud)) { @@ -1273,17 +1336,8 @@ static int cp210x_gpio_request(struct gpio_chip *gc, unsigned int offset) struct usb_serial *serial = gpiochip_get_data(gc); struct cp210x_serial_private *priv = usb_get_serial_data(serial); - switch (offset) { - case 0: - if (priv->config & CP2105_GPIO0_TXLED_MODE) - return -ENODEV; - break; - case 1: - if (priv->config & (CP2105_GPIO1_RXLED_MODE | - CP2105_GPIO1_RS485_MODE)) - return -ENODEV; - break; - } + if (priv->gpio_altfunc & BIT(offset)) + return -ENODEV; return 0; } @@ -1291,10 +1345,15 @@ static int cp210x_gpio_request(struct gpio_chip *gc, unsigned int offset) static int cp210x_gpio_get(struct gpio_chip *gc, unsigned int gpio) { struct usb_serial *serial = gpiochip_get_data(gc); + struct cp210x_serial_private *priv = usb_get_serial_data(serial); + u8 req_type = REQTYPE_DEVICE_TO_HOST; int result; u8 buf; - result = cp210x_read_vendor_block(serial, REQTYPE_INTERFACE_TO_HOST, + if (priv->partnum == CP210X_PARTNUM_CP2105) + req_type = REQTYPE_INTERFACE_TO_HOST; + + result = cp210x_read_vendor_block(serial, req_type, CP210X_READ_LATCH, &buf, sizeof(buf)); if (result < 0) return result; @@ -1305,7 +1364,9 @@ static int cp210x_gpio_get(struct gpio_chip *gc, unsigned int gpio) static void cp210x_gpio_set(struct gpio_chip *gc, unsigned int gpio, int value) { struct usb_serial *serial = gpiochip_get_data(gc); + struct cp210x_serial_private *priv = usb_get_serial_data(serial); struct cp210x_gpio_write buf; + int result; if (value == 1) buf.state = BIT(gpio); @@ -1314,25 +1375,68 @@ static void cp210x_gpio_set(struct gpio_chip *gc, unsigned int gpio, int value) buf.mask = BIT(gpio); - cp210x_write_vendor_block(serial, REQTYPE_HOST_TO_INTERFACE, - CP210X_WRITE_LATCH, &buf, sizeof(buf)); + if (priv->partnum == CP210X_PARTNUM_CP2105) { + result = cp210x_write_vendor_block(serial, + REQTYPE_HOST_TO_INTERFACE, + CP210X_WRITE_LATCH, &buf, + sizeof(buf)); + } else { + u16 wIndex = buf.state << 8 | buf.mask; + + result = usb_control_msg(serial->dev, + usb_sndctrlpipe(serial->dev, 0), + CP210X_VENDOR_SPECIFIC, + REQTYPE_HOST_TO_DEVICE, + CP210X_WRITE_LATCH, + wIndex, + NULL, 0, USB_CTRL_SET_TIMEOUT); + } + + if (result < 0) { + dev_err(&serial->interface->dev, "failed to set GPIO value: %d\n", + result); + } } static int cp210x_gpio_direction_get(struct gpio_chip *gc, unsigned int gpio) { - /* Hardware does not support an input mode */ - return 0; + struct usb_serial *serial = gpiochip_get_data(gc); + struct cp210x_serial_private *priv = usb_get_serial_data(serial); + + return priv->gpio_input & BIT(gpio); } static int cp210x_gpio_direction_input(struct gpio_chip *gc, unsigned int gpio) { - /* Hardware does not support an input mode */ - return -ENOTSUPP; + struct usb_serial *serial = gpiochip_get_data(gc); + struct cp210x_serial_private *priv = usb_get_serial_data(serial); + + if (priv->partnum == CP210X_PARTNUM_CP2105) { + /* hardware does not support an input mode */ + return -ENOTSUPP; + } + + /* push-pull pins cannot be changed to be inputs */ + if (priv->gpio_pushpull & BIT(gpio)) + return -EINVAL; + + /* make sure to release pin if it is being driven low */ + cp210x_gpio_set(gc, gpio, 1); + + priv->gpio_input |= BIT(gpio); + + return 0; } static int cp210x_gpio_direction_output(struct gpio_chip *gc, unsigned int gpio, int value) { + struct usb_serial *serial = gpiochip_get_data(gc); + struct cp210x_serial_private *priv = usb_get_serial_data(serial); + + priv->gpio_input &= ~BIT(gpio); + cp210x_gpio_set(gc, gpio, value); + return 0; } @@ -1345,11 +1449,11 @@ static int cp210x_gpio_set_config(struct gpio_chip *gc, unsigned int gpio, /* Succeed only if in correct mode (this can't be set at runtime) */ if ((param == PIN_CONFIG_DRIVE_PUSH_PULL) && - (priv->gpio_mode & BIT(gpio))) + (priv->gpio_pushpull & BIT(gpio))) return 0; if ((param == PIN_CONFIG_DRIVE_OPEN_DRAIN) && - !(priv->gpio_mode & BIT(gpio))) + !(priv->gpio_pushpull & BIT(gpio))) return 0; return -ENOTSUPP; @@ -1362,12 +1466,13 @@ static int cp210x_gpio_set_config(struct gpio_chip *gc, unsigned int gpio, * this driver that provide GPIO do so in a way that does not impact other * signals and are thus expected to have very different initialisation. */ -static int cp2105_shared_gpio_init(struct usb_serial *serial) +static int cp2105_gpioconf_init(struct usb_serial *serial) { struct cp210x_serial_private *priv = usb_get_serial_data(serial); struct cp210x_pin_mode mode; struct cp210x_config config; u8 intf_num = cp210x_interface_num(serial); + u8 iface_config; int result; result = cp210x_read_vendor_block(serial, REQTYPE_DEVICE_TO_HOST, @@ -1384,20 +1489,26 @@ static int cp2105_shared_gpio_init(struct usb_serial *serial) /* 2 banks of GPIO - One for the pins taken from each serial port */ if (intf_num == 0) { - if (mode.eci == CP210X_PIN_MODE_MODEM) + if (mode.eci == CP210X_PIN_MODE_MODEM) { + /* mark all GPIOs of this interface as reserved */ + priv->gpio_altfunc = 0xff; return 0; + } - priv->config = config.eci_cfg; - priv->gpio_mode = (u8)((le16_to_cpu(config.gpio_mode) & + iface_config = config.eci_cfg; + priv->gpio_pushpull = (u8)((le16_to_cpu(config.gpio_mode) & CP210X_ECI_GPIO_MODE_MASK) >> CP210X_ECI_GPIO_MODE_OFFSET); priv->gc.ngpio = 2; } else if (intf_num == 1) { - if (mode.sci == CP210X_PIN_MODE_MODEM) + if (mode.sci == CP210X_PIN_MODE_MODEM) { + /* mark all GPIOs of this interface as reserved */ + priv->gpio_altfunc = 0xff; return 0; + } - priv->config = config.sci_cfg; - priv->gpio_mode = (u8)((le16_to_cpu(config.gpio_mode) & + iface_config = config.sci_cfg; + priv->gpio_pushpull = (u8)((le16_to_cpu(config.gpio_mode) & CP210X_SCI_GPIO_MODE_MASK) >> CP210X_SCI_GPIO_MODE_OFFSET); priv->gc.ngpio = 3; @@ -1405,6 +1516,125 @@ static int cp2105_shared_gpio_init(struct usb_serial *serial) return -ENODEV; } + /* mark all pins which are not in GPIO mode */ + if (iface_config & CP2105_GPIO0_TXLED_MODE) /* GPIO 0 */ + priv->gpio_altfunc |= BIT(0); + if (iface_config & (CP2105_GPIO1_RXLED_MODE | /* GPIO 1 */ + CP2105_GPIO1_RS485_MODE)) + priv->gpio_altfunc |= BIT(1); + + /* driver implementation for CP2105 only supports outputs */ + priv->gpio_input = 0; + + return 0; +} + +static int cp2102n_gpioconf_init(struct usb_serial *serial) +{ + struct cp210x_serial_private *priv = usb_get_serial_data(serial); + const u16 config_size = 0x02a6; + u8 gpio_rst_latch; + u8 config_version; + u8 gpio_pushpull; + u8 *config_buf; + u8 gpio_latch; + u8 gpio_ctrl; + int result; + u8 i; + + /* + * Retrieve device configuration from the device. + * The array received contains all customization settings done at the + * factory/manufacturer. Format of the array is documented at the + * time of writing at: + * https://www.silabs.com/community/interface/knowledge-base.entry.html/2017/03/31/cp2102n_setconfig-xsfa + */ + config_buf = kmalloc(config_size, GFP_KERNEL); + if (!config_buf) + return -ENOMEM; + + result = cp210x_read_vendor_block(serial, + REQTYPE_DEVICE_TO_HOST, + CP210X_READ_2NCONFIG, + config_buf, + config_size); + if (result < 0) { + kfree(config_buf); + return result; + } + + config_version = config_buf[CP210X_2NCONFIG_CONFIG_VERSION_IDX]; + gpio_pushpull = config_buf[CP210X_2NCONFIG_GPIO_MODE_IDX]; + gpio_ctrl = config_buf[CP210X_2NCONFIG_GPIO_CONTROL_IDX]; + gpio_rst_latch = config_buf[CP210X_2NCONFIG_GPIO_RSTLATCH_IDX]; + + kfree(config_buf); + + /* Make sure this is a config format we understand. */ + if (config_version != 0x01) + return -ENOTSUPP; + + /* + * We only support 4 GPIOs even on the QFN28 package, because + * config locations of GPIOs 4-6 determined using reverse + * engineering revealed conflicting offsets with other + * documented functions. So we'll just play it safe for now. + */ + priv->gc.ngpio = 4; + + /* + * Get default pin states after reset. Needed so we can determine + * the direction of an open-drain pin. + */ + gpio_latch = (gpio_rst_latch >> 3) & 0x0f; + + /* 0 indicates open-drain mode, 1 is push-pull */ + priv->gpio_pushpull = (gpio_pushpull >> 3) & 0x0f; + + /* 0 indicates GPIO mode, 1 is alternate function */ + priv->gpio_altfunc = (gpio_ctrl >> 2) & 0x0f; + + /* + * The CP2102N does not strictly has input and output pin modes, + * it only knows open-drain and push-pull modes which is set at + * factory. An open-drain pin can function both as an + * input or an output. We emulate input mode for open-drain pins + * by making sure they are not driven low, and we do not allow + * push-pull pins to be set as an input. + */ + for (i = 0; i < priv->gc.ngpio; ++i) { + /* + * Set direction to "input" iff pin is open-drain and reset + * value is 1. + */ + if (!(priv->gpio_pushpull & BIT(i)) && (gpio_latch & BIT(i))) + priv->gpio_input |= BIT(i); + } + + return 0; +} + +static int cp210x_gpio_init(struct usb_serial *serial) +{ + struct cp210x_serial_private *priv = usb_get_serial_data(serial); + int result; + + switch (priv->partnum) { + case CP210X_PARTNUM_CP2105: + result = cp2105_gpioconf_init(serial); + break; + case CP210X_PARTNUM_CP2102N_QFN28: + case CP210X_PARTNUM_CP2102N_QFN24: + case CP210X_PARTNUM_CP2102N_QFN20: + result = cp2102n_gpioconf_init(serial); + break; + default: + return 0; + } + + if (result < 0) + return result; + priv->gc.label = "cp210x"; priv->gc.request = cp210x_gpio_request; priv->gc.get_direction = cp210x_gpio_direction_get; @@ -1437,7 +1667,7 @@ static void cp210x_gpio_remove(struct usb_serial *serial) #else -static int cp2105_shared_gpio_init(struct usb_serial *serial) +static int cp210x_gpio_init(struct usb_serial *serial) { return 0; } @@ -1482,6 +1712,50 @@ static int cp210x_port_remove(struct usb_serial_port *port) return 0; } +static void cp210x_init_max_speed(struct usb_serial *serial) +{ + struct cp210x_serial_private *priv = usb_get_serial_data(serial); + bool use_actual_rate = false; + speed_t max; + + switch (priv->partnum) { + case CP210X_PARTNUM_CP2101: + max = 921600; + break; + case CP210X_PARTNUM_CP2102: + case CP210X_PARTNUM_CP2103: + max = 1000000; + break; + case CP210X_PARTNUM_CP2104: + use_actual_rate = true; + max = 2000000; + break; + case CP210X_PARTNUM_CP2108: + max = 2000000; + break; + case CP210X_PARTNUM_CP2105: + if (cp210x_interface_num(serial) == 0) { + use_actual_rate = true; + max = 2000000; /* ECI */ + } else { + max = 921600; /* SCI */ + } + break; + case CP210X_PARTNUM_CP2102N_QFN28: + case CP210X_PARTNUM_CP2102N_QFN24: + case CP210X_PARTNUM_CP2102N_QFN20: + use_actual_rate = true; + max = 3000000; + break; + default: + max = 2000000; + break; + } + + priv->max_speed = max; + priv->use_actual_rate = use_actual_rate; +} + static int cp210x_attach(struct usb_serial *serial) { int result; @@ -1502,12 +1776,12 @@ static int cp210x_attach(struct usb_serial *serial) usb_set_serial_data(serial, priv); - if (priv->partnum == CP210X_PARTNUM_CP2105) { - result = cp2105_shared_gpio_init(serial); - if (result < 0) { - dev_err(&serial->interface->dev, - "GPIO initialisation failed, continuing without GPIO support\n"); - } + cp210x_init_max_speed(serial); + + result = cp210x_gpio_init(serial); + if (result < 0) { + dev_err(&serial->interface->dev, "GPIO initialisation failed: %d\n", + result); } return 0; diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c index dc67a2eb98d7..ebd76ab07b72 100644 --- a/drivers/usb/serial/cyberjack.c +++ b/drivers/usb/serial/cyberjack.c @@ -255,6 +255,7 @@ static void cyberjack_read_int_callback(struct urb *urb) struct device *dev = &port->dev; unsigned char *data = urb->transfer_buffer; int status = urb->status; + unsigned long flags; int result; /* the urb might have been killed. */ @@ -270,13 +271,13 @@ static void cyberjack_read_int_callback(struct urb *urb) /* This is a announcement of coming bulk_ins. */ unsigned short size = ((unsigned short)data[3]<<8)+data[2]+3; - spin_lock(&priv->lock); + spin_lock_irqsave(&priv->lock, flags); old_rdtodo = priv->rdtodo; if (old_rdtodo > SHRT_MAX - size) { dev_dbg(dev, "To many bulk_in urbs to do.\n"); - spin_unlock(&priv->lock); + spin_unlock_irqrestore(&priv->lock, flags); goto resubmit; } @@ -285,7 +286,7 @@ static void cyberjack_read_int_callback(struct urb *urb) dev_dbg(dev, "%s - rdtodo: %d\n", __func__, priv->rdtodo); - spin_unlock(&priv->lock); + spin_unlock_irqrestore(&priv->lock, flags); if (!old_rdtodo) { result = usb_submit_urb(port->read_urb, GFP_ATOMIC); @@ -309,6 +310,7 @@ static void cyberjack_read_bulk_callback(struct urb *urb) struct cyberjack_private *priv = usb_get_serial_port_data(port); struct device *dev = &port->dev; unsigned char *data = urb->transfer_buffer; + unsigned long flags; short todo; int result; int status = urb->status; @@ -325,7 +327,7 @@ static void cyberjack_read_bulk_callback(struct urb *urb) tty_flip_buffer_push(&port->port); } - spin_lock(&priv->lock); + spin_lock_irqsave(&priv->lock, flags); /* Reduce urbs to do by one. */ priv->rdtodo -= urb->actual_length; @@ -334,7 +336,7 @@ static void cyberjack_read_bulk_callback(struct urb *urb) priv->rdtodo = 0; todo = priv->rdtodo; - spin_unlock(&priv->lock); + spin_unlock_irqrestore(&priv->lock, flags); dev_dbg(dev, "%s - rdtodo: %d\n", __func__, todo); @@ -354,6 +356,7 @@ static void cyberjack_write_bulk_callback(struct urb *urb) struct cyberjack_private *priv = usb_get_serial_port_data(port); struct device *dev = &port->dev; int status = urb->status; + unsigned long flags; set_bit(0, &port->write_urbs_free); if (status) { @@ -362,7 +365,7 @@ static void cyberjack_write_bulk_callback(struct urb *urb) return; } - spin_lock(&priv->lock); + spin_lock_irqsave(&priv->lock, flags); /* only do something if we have more data to send */ if (priv->wrfilled) { @@ -406,7 +409,7 @@ static void cyberjack_write_bulk_callback(struct urb *urb) } exit: - spin_unlock(&priv->lock); + spin_unlock_irqrestore(&priv->lock, flags); usb_serial_port_softint(port); } diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index b0526786fb02..e7f244cf2c07 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -984,6 +984,7 @@ static void digi_write_bulk_callback(struct urb *urb) struct usb_serial *serial; struct digi_port *priv; struct digi_serial *serial_priv; + unsigned long flags; int ret = 0; int status = urb->status; @@ -1004,15 +1005,15 @@ static void digi_write_bulk_callback(struct urb *urb) /* handle oob callback */ if (priv->dp_port_num == serial_priv->ds_oob_port_num) { dev_dbg(&port->dev, "digi_write_bulk_callback: oob callback\n"); - spin_lock(&priv->dp_port_lock); + spin_lock_irqsave(&priv->dp_port_lock, flags); priv->dp_write_urb_in_use = 0; wake_up_interruptible(&port->write_wait); - spin_unlock(&priv->dp_port_lock); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); return; } /* try to send any buffered data on this port */ - spin_lock(&priv->dp_port_lock); + spin_lock_irqsave(&priv->dp_port_lock, flags); priv->dp_write_urb_in_use = 0; if (priv->dp_out_buf_len > 0) { *((unsigned char *)(port->write_urb->transfer_buffer)) @@ -1035,7 +1036,7 @@ static void digi_write_bulk_callback(struct urb *urb) /* lost the race in write_chan(). */ schedule_work(&priv->dp_wakeup_work); - spin_unlock(&priv->dp_port_lock); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); if (ret && ret != -EPERM) dev_err_console(port, "%s: usb_submit_urb failed, ret=%d, port=%d\n", @@ -1381,11 +1382,12 @@ static int digi_read_inb_callback(struct urb *urb) struct usb_serial_port *port = urb->context; struct digi_port *priv = usb_get_serial_port_data(port); unsigned char *buf = urb->transfer_buffer; + unsigned long flags; int opcode; int len; int port_status; unsigned char *data; - int flag, throttled; + int tty_flag, throttled; /* short/multiple packet check */ if (urb->actual_length < 2) { @@ -1407,7 +1409,7 @@ static int digi_read_inb_callback(struct urb *urb) return -1; } - spin_lock(&priv->dp_port_lock); + spin_lock_irqsave(&priv->dp_port_lock, flags); /* check for throttle; if set, do not resubmit read urb */ /* indicate the read chain needs to be restarted on unthrottle */ @@ -1421,7 +1423,7 @@ static int digi_read_inb_callback(struct urb *urb) data = &buf[3]; /* get flag from port_status */ - flag = 0; + tty_flag = 0; /* overrun is special, not associated with a char */ if (port_status & DIGI_OVERRUN_ERROR) @@ -1430,21 +1432,21 @@ static int digi_read_inb_callback(struct urb *urb) /* break takes precedence over parity, */ /* which takes precedence over framing errors */ if (port_status & DIGI_BREAK_ERROR) - flag = TTY_BREAK; + tty_flag = TTY_BREAK; else if (port_status & DIGI_PARITY_ERROR) - flag = TTY_PARITY; + tty_flag = TTY_PARITY; else if (port_status & DIGI_FRAMING_ERROR) - flag = TTY_FRAME; + tty_flag = TTY_FRAME; /* data length is len-1 (one byte of len is port_status) */ --len; if (len > 0) { tty_insert_flip_string_fixed_flag(&port->port, data, - flag, len); + tty_flag, len); tty_flip_buffer_push(&port->port); } } - spin_unlock(&priv->dp_port_lock); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); if (opcode == DIGI_CMD_RECEIVE_DISABLE) dev_dbg(&port->dev, "%s: got RECEIVE_DISABLE\n", __func__); @@ -1474,6 +1476,7 @@ static int digi_read_oob_callback(struct urb *urb) struct digi_port *priv = usb_get_serial_port_data(port); unsigned char *buf = urb->transfer_buffer; int opcode, line, status, val; + unsigned long flags; int i; unsigned int rts; @@ -1506,7 +1509,7 @@ static int digi_read_oob_callback(struct urb *urb) rts = C_CRTSCTS(tty); if (tty && opcode == DIGI_CMD_READ_INPUT_SIGNALS) { - spin_lock(&priv->dp_port_lock); + spin_lock_irqsave(&priv->dp_port_lock, flags); /* convert from digi flags to termiox flags */ if (val & DIGI_READ_INPUT_SIGNALS_CTS) { priv->dp_modem_signals |= TIOCM_CTS; @@ -1530,12 +1533,12 @@ static int digi_read_oob_callback(struct urb *urb) else priv->dp_modem_signals &= ~TIOCM_CD; - spin_unlock(&priv->dp_port_lock); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); } else if (opcode == DIGI_CMD_TRANSMIT_IDLE) { - spin_lock(&priv->dp_port_lock); + spin_lock_irqsave(&priv->dp_port_lock, flags); priv->dp_transmit_idle = 1; wake_up_interruptible(&priv->dp_transmit_idle_wait); - spin_unlock(&priv->dp_port_lock); + spin_unlock_irqrestore(&priv->dp_port_lock, flags); } else if (opcode == DIGI_CMD_IFLUSH_FIFO) { wake_up_interruptible(&priv->dp_flush_wait); } diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c index 17283f4b4779..97c69d373ca6 100644 --- a/drivers/usb/serial/io_edgeport.c +++ b/drivers/usb/serial/io_edgeport.c @@ -648,6 +648,7 @@ static void edge_interrupt_callback(struct urb *urb) struct usb_serial_port *port; unsigned char *data = urb->transfer_buffer; int length = urb->actual_length; + unsigned long flags; int bytes_avail; int position; int txCredits; @@ -679,7 +680,7 @@ static void edge_interrupt_callback(struct urb *urb) if (length > 1) { bytes_avail = data[0] | (data[1] << 8); if (bytes_avail) { - spin_lock(&edge_serial->es_lock); + spin_lock_irqsave(&edge_serial->es_lock, flags); edge_serial->rxBytesAvail += bytes_avail; dev_dbg(dev, "%s - bytes_avail=%d, rxBytesAvail=%d, read_in_progress=%d\n", @@ -702,7 +703,8 @@ static void edge_interrupt_callback(struct urb *urb) edge_serial->read_in_progress = false; } } - spin_unlock(&edge_serial->es_lock); + spin_unlock_irqrestore(&edge_serial->es_lock, + flags); } } /* grab the txcredits for the ports if available */ @@ -715,9 +717,11 @@ static void edge_interrupt_callback(struct urb *urb) port = edge_serial->serial->port[portNumber]; edge_port = usb_get_serial_port_data(port); if (edge_port->open) { - spin_lock(&edge_port->ep_lock); + spin_lock_irqsave(&edge_port->ep_lock, + flags); edge_port->txCredits += txCredits; - spin_unlock(&edge_port->ep_lock); + spin_unlock_irqrestore(&edge_port->ep_lock, + flags); dev_dbg(dev, "%s - txcredits for port%d = %d\n", __func__, portNumber, edge_port->txCredits); @@ -758,6 +762,7 @@ static void edge_bulk_in_callback(struct urb *urb) int retval; __u16 raw_data_length; int status = urb->status; + unsigned long flags; if (status) { dev_dbg(&urb->dev->dev, "%s - nonzero read bulk status received: %d\n", @@ -777,7 +782,7 @@ static void edge_bulk_in_callback(struct urb *urb) usb_serial_debug_data(dev, __func__, raw_data_length, data); - spin_lock(&edge_serial->es_lock); + spin_lock_irqsave(&edge_serial->es_lock, flags); /* decrement our rxBytes available by the number that we just got */ edge_serial->rxBytesAvail -= raw_data_length; @@ -801,7 +806,7 @@ static void edge_bulk_in_callback(struct urb *urb) edge_serial->read_in_progress = false; } - spin_unlock(&edge_serial->es_lock); + spin_unlock_irqrestore(&edge_serial->es_lock, flags); } diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index 0fbadb37c104..6d1d6efa3055 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -1729,6 +1729,7 @@ static void edge_bulk_in_callback(struct urb *urb) struct edgeport_port *edge_port = urb->context; struct device *dev = &edge_port->port->dev; unsigned char *data = urb->transfer_buffer; + unsigned long flags; int retval = 0; int port_number; int status = urb->status; @@ -1780,13 +1781,13 @@ static void edge_bulk_in_callback(struct urb *urb) exit: /* continue read unless stopped */ - spin_lock(&edge_port->ep_lock); + spin_lock_irqsave(&edge_port->ep_lock, flags); if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) retval = usb_submit_urb(urb, GFP_ATOMIC); else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING) edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED; - spin_unlock(&edge_port->ep_lock); + spin_unlock_irqrestore(&edge_port->ep_lock, flags); if (retval) dev_err(dev, "%s - usb_submit_urb failed with result %d\n", __func__, retval); } diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c index 24b06c7e5e2d..7643716b5299 100644 --- a/drivers/usb/serial/ir-usb.c +++ b/drivers/usb/serial/ir-usb.c @@ -132,7 +132,7 @@ irda_usb_find_class_desc(struct usb_serial *serial, unsigned int ifnum) 0, ifnum, desc, sizeof(*desc), 1000); dev_dbg(&serial->dev->dev, "%s - ret=%d\n", __func__, ret); - if (ret < sizeof(*desc)) { + if (ret < (int)sizeof(*desc)) { dev_dbg(&serial->dev->dev, "%s - class descriptor read %s (%d)\n", __func__, (ret < 0) ? "failed" : "too short", ret); diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c index 2fb71303ec3a..449e89db9cea 100644 --- a/drivers/usb/serial/iuu_phoenix.c +++ b/drivers/usb/serial/iuu_phoenix.c @@ -58,7 +58,6 @@ struct iuu_private { u8 *buf; /* used for initialize speed */ u8 len; int vcc; /* vcc (either 3 or 5 V) */ - u32 baud; u32 boost; u32 clk; }; @@ -963,9 +962,6 @@ static int iuu_open(struct tty_struct *tty, struct usb_serial_port *port) struct iuu_private *priv = usb_get_serial_port_data(port); baud = tty->termios.c_ospeed; - tty->termios.c_ispeed = baud; - /* Re-encode speed */ - tty_encode_baud_rate(tty, baud, baud); dev_dbg(dev, "%s - baud %d\n", __func__, baud); usb_clear_halt(serial->dev, port->write_urb->pipe); @@ -991,7 +987,6 @@ static int iuu_open(struct tty_struct *tty, struct usb_serial_port *port) if (boost < 100) boost = 100; priv->boost = boost; - priv->baud = baud; switch (clockmode) { case 2: /* 3.680 Mhz */ priv->clk = IUU_CLK_3680000; diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c index 5169624d8b11..38d43c4b7ce5 100644 --- a/drivers/usb/serial/keyspan_pda.c +++ b/drivers/usb/serial/keyspan_pda.c @@ -369,8 +369,10 @@ static int keyspan_pda_get_modem_info(struct usb_serial *serial, 3, /* get pins */ USB_TYPE_VENDOR|USB_RECIP_INTERFACE|USB_DIR_IN, 0, 0, data, 1, 2000); - if (rc >= 0) + if (rc == 1) *value = *data; + else if (rc >= 0) + rc = -EIO; kfree(data); return rc; diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c index 5046ffd53cde..5ee48b0650c4 100644 --- a/drivers/usb/serial/kl5kusb105.c +++ b/drivers/usb/serial/kl5kusb105.c @@ -67,7 +67,6 @@ static int klsi_105_prepare_write_buffer(struct usb_serial_port *port, */ static const struct usb_device_id id_table[] = { { USB_DEVICE(PALMCONNECT_VID, PALMCONNECT_PID) }, - { USB_DEVICE(KLSI_VID, KLSI_KL5KUSB105D_PID) }, { } /* Terminating entry */ }; diff --git a/drivers/usb/serial/kl5kusb105.h b/drivers/usb/serial/kl5kusb105.h index 41c9bf60fbf0..dbe98d85ca8e 100644 --- a/drivers/usb/serial/kl5kusb105.h +++ b/drivers/usb/serial/kl5kusb105.h @@ -7,9 +7,6 @@ #define PALMCONNECT_VID 0x0830 #define PALMCONNECT_PID 0x0080 -#define KLSI_VID 0x05e9 -#define KLSI_KL5KUSB105D_PID 0x00c0 - /* Vendor commands: */ diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c index a31ea7e194dd..e9882ba20933 100644 --- a/drivers/usb/serial/kobil_sct.c +++ b/drivers/usb/serial/kobil_sct.c @@ -190,8 +190,10 @@ static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port) KOBIL_TIMEOUT ); dev_dbg(dev, "%s - Send get_HW_version URB returns: %i\n", __func__, result); - dev_dbg(dev, "Hardware version: %i.%i.%i\n", transfer_buffer[0], - transfer_buffer[1], transfer_buffer[2]); + if (result >= 3) { + dev_dbg(dev, "Hardware version: %i.%i.%i\n", transfer_buffer[0], + transfer_buffer[1], transfer_buffer[2]); + } /* get firmware version */ result = usb_control_msg(port->serial->dev, @@ -205,8 +207,10 @@ static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port) KOBIL_TIMEOUT ); dev_dbg(dev, "%s - Send get_FW_version URB returns: %i\n", __func__, result); - dev_dbg(dev, "Firmware version: %i.%i.%i\n", transfer_buffer[0], - transfer_buffer[1], transfer_buffer[2]); + if (result >= 3) { + dev_dbg(dev, "Firmware version: %i.%i.%i\n", transfer_buffer[0], + transfer_buffer[1], transfer_buffer[2]); + } if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID || priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) { @@ -393,12 +397,20 @@ static int kobil_tiocmget(struct tty_struct *tty) transfer_buffer_length, KOBIL_TIMEOUT); - dev_dbg(&port->dev, "%s - Send get_status_line_state URB returns: %i. Statusline: %02x\n", - __func__, result, transfer_buffer[0]); + dev_dbg(&port->dev, "Send get_status_line_state URB returns: %i\n", + result); + if (result < 1) { + if (result >= 0) + result = -EIO; + goto out_free; + } + + dev_dbg(&port->dev, "Statusline: %02x\n", transfer_buffer[0]); result = 0; if ((transfer_buffer[0] & SUSBCR_GSL_DSR) != 0) result = TIOCM_DSR; +out_free: kfree(transfer_buffer); return result; } diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c index bd57630e67e2..27109522fd8b 100644 --- a/drivers/usb/serial/mos7720.c +++ b/drivers/usb/serial/mos7720.c @@ -340,14 +340,15 @@ static void async_complete(struct urb *urb) { struct urbtracker *urbtrack = urb->context; int status = urb->status; + unsigned long flags; if (unlikely(status)) dev_dbg(&urb->dev->dev, "%s - nonzero urb status received: %d\n", __func__, status); /* remove the urbtracker from the active_urbs list */ - spin_lock(&urbtrack->mos_parport->listlock); + spin_lock_irqsave(&urbtrack->mos_parport->listlock, flags); list_del(&urbtrack->urblist_entry); - spin_unlock(&urbtrack->mos_parport->listlock); + spin_unlock_irqrestore(&urbtrack->mos_parport->listlock, flags); kref_put(&urbtrack->ref_count, destroy_urbtracker); } @@ -1526,8 +1527,6 @@ static void change_port_settings(struct tty_struct *tty, struct usb_serial *serial; int baud; unsigned cflag; - unsigned iflag; - __u8 mask = 0xff; __u8 lData; __u8 lParity; __u8 lStop; @@ -1551,23 +1550,19 @@ static void change_port_settings(struct tty_struct *tty, lParity = 0x00; /* No parity */ cflag = tty->termios.c_cflag; - iflag = tty->termios.c_iflag; /* Change the number of bits */ switch (cflag & CSIZE) { case CS5: lData = UART_LCR_WLEN5; - mask = 0x1f; break; case CS6: lData = UART_LCR_WLEN6; - mask = 0x3f; break; case CS7: lData = UART_LCR_WLEN7; - mask = 0x7f; break; default: case CS8: @@ -1685,11 +1680,8 @@ static void mos7720_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old_termios) { int status; - struct usb_serial *serial; struct moschip_port *mos7720_port; - serial = port->serial; - mos7720_port = usb_get_serial_port_data(port); if (mos7720_port == NULL) diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index fdceb46d9fc6..b42bad85097a 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -468,6 +468,9 @@ static void mos7840_control_callback(struct urb *urb) } dev_dbg(dev, "%s urb buffer size is %d\n", __func__, urb->actual_length); + if (urb->actual_length < 1) + goto out; + dev_dbg(dev, "%s mos7840_port->MsrLsr is %d port %d\n", __func__, mos7840_port->MsrLsr, mos7840_port->port_num); data = urb->transfer_buffer; @@ -802,18 +805,19 @@ static void mos7840_bulk_out_data_callback(struct urb *urb) struct moschip_port *mos7840_port; struct usb_serial_port *port; int status = urb->status; + unsigned long flags; int i; mos7840_port = urb->context; port = mos7840_port->port; - spin_lock(&mos7840_port->pool_lock); + spin_lock_irqsave(&mos7840_port->pool_lock, flags); for (i = 0; i < NUM_URBS; i++) { if (urb == mos7840_port->write_urb_pool[i]) { mos7840_port->busy[i] = 0; break; } } - spin_unlock(&mos7840_port->pool_lock); + spin_unlock_irqrestore(&mos7840_port->pool_lock, flags); if (status) { dev_dbg(&port->dev, "nonzero write bulk status received:%d\n", status); diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 664e61f16b6a..0215b70c4efc 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -196,6 +196,8 @@ static void option_instat_callback(struct urb *urb); #define DELL_PRODUCT_5800_V2_MINICARD_VZW 0x8196 /* Novatel E362 */ #define DELL_PRODUCT_5804_MINICARD_ATT 0x819b /* Novatel E371 */ +#define DELL_PRODUCT_5821E 0x81d7 + #define KYOCERA_VENDOR_ID 0x0c88 #define KYOCERA_PRODUCT_KPC650 0x17da #define KYOCERA_PRODUCT_KPC680 0x180a @@ -1030,6 +1032,8 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5800_MINICARD_VZW, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5800_V2_MINICARD_VZW, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5804_MINICARD_ATT, 0xff, 0xff, 0xff) }, + { USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5821E), + .driver_info = RSVD(0) | RSVD(1) | RSVD(6) }, { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) }, /* ADU-E100, ADU-310 */ { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) }, { USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) }, diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 5d1a1931967e..e41f725ac7aa 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -52,6 +52,8 @@ static const struct usb_device_id id_table[] = { .driver_info = PL2303_QUIRK_ENDPOINT_HACK }, { USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_UC485), .driver_info = PL2303_QUIRK_ENDPOINT_HACK }, + { USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_UC232B), + .driver_info = PL2303_QUIRK_ENDPOINT_HACK }, { USB_DEVICE(ATEN_VENDOR_ID, ATEN_PRODUCT_ID2) }, { USB_DEVICE(ATEN_VENDOR_ID2, ATEN_PRODUCT_ID) }, { USB_DEVICE(ELCOM_VENDOR_ID, ELCOM_PRODUCT_ID) }, diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h index fcd72396a7b6..26965cc23c17 100644 --- a/drivers/usb/serial/pl2303.h +++ b/drivers/usb/serial/pl2303.h @@ -24,6 +24,7 @@ #define ATEN_VENDOR_ID2 0x0547 #define ATEN_PRODUCT_ID 0x2008 #define ATEN_PRODUCT_UC485 0x2021 +#define ATEN_PRODUCT_UC232B 0x2022 #define ATEN_PRODUCT_ID2 0x2118 #define IODATA_VENDOR_ID 0x04bb diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c index 958e12e1e7c7..b61c2a9b6b11 100644 --- a/drivers/usb/serial/quatech2.c +++ b/drivers/usb/serial/quatech2.c @@ -194,7 +194,7 @@ static inline int qt2_getregister(struct usb_device *dev, ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), QT_SET_GET_REGISTER, 0xc0, reg, uart, data, sizeof(*data), QT2_USB_TIMEOUT); - if (ret < sizeof(*data)) { + if (ret < (int)sizeof(*data)) { if (ret >= 0) ret = -EIO; } @@ -621,16 +621,17 @@ static void qt2_write_bulk_callback(struct urb *urb) { struct usb_serial_port *port; struct qt2_port_private *port_priv; + unsigned long flags; port = urb->context; port_priv = usb_get_serial_port_data(port); - spin_lock(&port_priv->urb_lock); + spin_lock_irqsave(&port_priv->urb_lock, flags); port_priv->urb_in_use = false; usb_serial_port_softint(port); - spin_unlock(&port_priv->urb_lock); + spin_unlock_irqrestore(&port_priv->urb_lock, flags); } diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index d189f953c891..a43263a0edd8 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -409,6 +409,7 @@ static void sierra_outdat_callback(struct urb *urb) struct sierra_port_private *portdata = usb_get_serial_port_data(port); struct sierra_intf_private *intfdata; int status = urb->status; + unsigned long flags; intfdata = usb_get_serial_data(port->serial); @@ -419,12 +420,12 @@ static void sierra_outdat_callback(struct urb *urb) dev_dbg(&port->dev, "%s - nonzero write bulk status " "received: %d\n", __func__, status); - spin_lock(&portdata->lock); + spin_lock_irqsave(&portdata->lock, flags); --portdata->outstanding_urbs; - spin_unlock(&portdata->lock); - spin_lock(&intfdata->susp_lock); + spin_unlock_irqrestore(&portdata->lock, flags); + spin_lock_irqsave(&intfdata->susp_lock, flags); --intfdata->in_flight; - spin_unlock(&intfdata->susp_lock); + spin_unlock_irqrestore(&intfdata->susp_lock, flags); usb_serial_port_softint(port); } @@ -770,9 +771,9 @@ static void sierra_close(struct usb_serial_port *port) kfree(urb->transfer_buffer); usb_free_urb(urb); usb_autopm_put_interface_async(serial->interface); - spin_lock(&portdata->lock); + spin_lock_irq(&portdata->lock); portdata->outstanding_urbs--; - spin_unlock(&portdata->lock); + spin_unlock_irq(&portdata->lock); } sierra_stop_rx_urbs(port); diff --git a/drivers/usb/serial/ssu100.c b/drivers/usb/serial/ssu100.c index 2083c267787b..0900b47b5f57 100644 --- a/drivers/usb/serial/ssu100.c +++ b/drivers/usb/serial/ssu100.c @@ -104,7 +104,7 @@ static inline int ssu100_getregister(struct usb_device *dev, ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), QT_SET_GET_REGISTER, 0xc0, reg, uart, data, sizeof(*data), 300); - if (ret < sizeof(*data)) { + if (ret < (int)sizeof(*data)) { if (ret >= 0) ret = -EIO; } diff --git a/drivers/usb/serial/symbolserial.c b/drivers/usb/serial/symbolserial.c index cd2f8dc8b58c..6ca24e86f686 100644 --- a/drivers/usb/serial/symbolserial.c +++ b/drivers/usb/serial/symbolserial.c @@ -35,6 +35,7 @@ static void symbol_int_callback(struct urb *urb) struct symbol_private *priv = usb_get_serial_port_data(port); unsigned char *data = urb->transfer_buffer; int status = urb->status; + unsigned long flags; int result; int data_length; @@ -73,7 +74,7 @@ static void symbol_int_callback(struct urb *urb) } exit: - spin_lock(&priv->lock); + spin_lock_irqsave(&priv->lock, flags); /* Continue trying to always read if we should */ if (!priv->throttled) { @@ -84,7 +85,7 @@ exit: __func__, result); } else priv->actually_throttled = true; - spin_unlock(&priv->lock); + spin_unlock_irqrestore(&priv->lock, flags); } static int symbol_open(struct tty_struct *tty, struct usb_serial_port *port) diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 6b22857f6e52..3010878f7f8e 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -1215,6 +1215,7 @@ static void ti_bulk_in_callback(struct urb *urb) struct usb_serial_port *port = tport->tp_port; struct device *dev = &urb->dev->dev; int status = urb->status; + unsigned long flags; int retval = 0; switch (status) { @@ -1247,20 +1248,20 @@ static void ti_bulk_in_callback(struct urb *urb) __func__); else ti_recv(port, urb->transfer_buffer, urb->actual_length); - spin_lock(&tport->tp_lock); + spin_lock_irqsave(&tport->tp_lock, flags); port->icount.rx += urb->actual_length; - spin_unlock(&tport->tp_lock); + spin_unlock_irqrestore(&tport->tp_lock, flags); } exit: /* continue to read unless stopping */ - spin_lock(&tport->tp_lock); + spin_lock_irqsave(&tport->tp_lock, flags); if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) retval = usb_submit_urb(urb, GFP_ATOMIC); else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING) tport->tp_read_urb_state = TI_READ_URB_STOPPED; - spin_unlock(&tport->tp_lock); + spin_unlock_irqrestore(&tport->tp_lock, flags); if (retval) dev_err(dev, "%s - resubmit read urb failed, %d\n", __func__, retval); diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c index 107e64c42e94..912472f26e4f 100644 --- a/drivers/usb/serial/usb_wwan.c +++ b/drivers/usb/serial/usb_wwan.c @@ -326,6 +326,7 @@ static void usb_wwan_outdat_callback(struct urb *urb) struct usb_serial_port *port; struct usb_wwan_port_private *portdata; struct usb_wwan_intf_private *intfdata; + unsigned long flags; int i; port = urb->context; @@ -334,9 +335,9 @@ static void usb_wwan_outdat_callback(struct urb *urb) usb_serial_port_softint(port); usb_autopm_put_interface_async(port->serial->interface); portdata = usb_get_serial_port_data(port); - spin_lock(&intfdata->susp_lock); + spin_lock_irqsave(&intfdata->susp_lock, flags); intfdata->in_flight--; - spin_unlock(&intfdata->susp_lock); + spin_unlock_irqrestore(&intfdata->susp_lock, flags); for (i = 0; i < N_OUT_URB; ++i) { if (portdata->out_urbs[i] == urb) { diff --git a/drivers/usb/typec/Kconfig b/drivers/usb/typec/Kconfig index 2c8eab11a493..00878c386dd0 100644 --- a/drivers/usb/typec/Kconfig +++ b/drivers/usb/typec/Kconfig @@ -56,6 +56,22 @@ config TYPEC_TCPM if TYPEC_TCPM +config TYPEC_TCPCI + tristate "Type-C Port Controller Interface driver" + depends on I2C + select REGMAP_I2C + help + Type-C Port Controller driver for TCPCI-compliant controller. + +config TYPEC_RT1711H + tristate "Richtek RT1711H Type-C chip driver" + depends on I2C + select TYPEC_TCPCI + help + Richtek RT1711H Type-C chip driver that works with + Type-C Port Controller Manager to provide USB PD and USB + Type-C functionalities. + source "drivers/usb/typec/fusb302/Kconfig" config TYPEC_WCOVE @@ -88,4 +104,6 @@ config TYPEC_TPS6598X source "drivers/usb/typec/mux/Kconfig" +source "drivers/usb/typec/altmodes/Kconfig" + endif # TYPEC diff --git a/drivers/usb/typec/Makefile b/drivers/usb/typec/Makefile index 1f599a6c30cc..45b0aef428a8 100644 --- a/drivers/usb/typec/Makefile +++ b/drivers/usb/typec/Makefile @@ -1,9 +1,12 @@ # SPDX-License-Identifier: GPL-2.0 obj-$(CONFIG_TYPEC) += typec.o -typec-y := class.o mux.o +typec-y := class.o mux.o bus.o +obj-$(CONFIG_TYPEC) += altmodes/ obj-$(CONFIG_TYPEC_TCPM) += tcpm.o obj-y += fusb302/ obj-$(CONFIG_TYPEC_WCOVE) += typec_wcove.o obj-$(CONFIG_TYPEC_UCSI) += ucsi/ obj-$(CONFIG_TYPEC_TPS6598X) += tps6598x.o obj-$(CONFIG_TYPEC) += mux/ +obj-$(CONFIG_TYPEC_TCPCI) += tcpci.o +obj-$(CONFIG_TYPEC_RT1711H) += tcpci_rt1711h.o diff --git a/drivers/usb/typec/altmodes/Kconfig b/drivers/usb/typec/altmodes/Kconfig new file mode 100644 index 000000000000..efef2a64bc51 --- /dev/null +++ b/drivers/usb/typec/altmodes/Kconfig @@ -0,0 +1,14 @@ + +menu "USB Type-C Alternate Mode drivers" + +config TYPEC_DP_ALTMODE + tristate "DisplayPort Alternate Mode driver" + help + DisplayPort USB Type-C Alternate Mode allows DisplayPort + displays and adapters to be attached to the USB Type-C + connectors on the system. + + To compile this driver as a module, choose M here: the + module will be called typec_displayport. + +endmenu diff --git a/drivers/usb/typec/altmodes/Makefile b/drivers/usb/typec/altmodes/Makefile new file mode 100644 index 000000000000..5caf094ef71a --- /dev/null +++ b/drivers/usb/typec/altmodes/Makefile @@ -0,0 +1,2 @@ +obj-$(CONFIG_TYPEC_DP_ALTMODE) += typec_displayport.o +typec_displayport-y := displayport.o diff --git a/drivers/usb/typec/altmodes/displayport.c b/drivers/usb/typec/altmodes/displayport.c new file mode 100644 index 000000000000..3f06e94771a7 --- /dev/null +++ b/drivers/usb/typec/altmodes/displayport.c @@ -0,0 +1,580 @@ +// SPDX-License-Identifier: GPL-2.0 +/** + * USB Typec-C DisplayPort Alternate Mode driver + * + * Copyright (C) 2018 Intel Corporation + * Author: Heikki Krogerus <heikki.krogerus@linux.intel.com> + * + * DisplayPort is trademark of VESA (www.vesa.org) + */ + +#include <linux/delay.h> +#include <linux/mutex.h> +#include <linux/module.h> +#include <linux/usb/pd_vdo.h> +#include <linux/usb/typec_dp.h> + +#define DP_HEADER(cmd) (VDO(USB_TYPEC_DP_SID, 1, cmd) | \ + VDO_OPOS(USB_TYPEC_DP_MODE)) + +enum { + DP_CONF_USB, + DP_CONF_DFP_D, + DP_CONF_UFP_D, + DP_CONF_DUAL_D, +}; + +/* Helper for setting/getting the pin assignement value to the configuration */ +#define DP_CONF_SET_PIN_ASSIGN(_a_) ((_a_) << 8) +#define DP_CONF_GET_PIN_ASSIGN(_conf_) (((_conf_) & GENMASK(15, 8)) >> 8) + +/* Pin assignments that use USB3.1 Gen2 signaling to carry DP protocol */ +#define DP_PIN_ASSIGN_GEN2_BR_MASK (BIT(DP_PIN_ASSIGN_A) | \ + BIT(DP_PIN_ASSIGN_B)) + +/* Pin assignments that use DP v1.3 signaling to carry DP protocol */ +#define DP_PIN_ASSIGN_DP_BR_MASK (BIT(DP_PIN_ASSIGN_C) | \ + BIT(DP_PIN_ASSIGN_D) | \ + BIT(DP_PIN_ASSIGN_E) | \ + BIT(DP_PIN_ASSIGN_F)) + +/* DP only pin assignments */ +#define DP_PIN_ASSIGN_DP_ONLY_MASK (BIT(DP_PIN_ASSIGN_A) | \ + BIT(DP_PIN_ASSIGN_C) | \ + BIT(DP_PIN_ASSIGN_E)) + +/* Pin assignments where one channel is for USB */ +#define DP_PIN_ASSIGN_MULTI_FUNC_MASK (BIT(DP_PIN_ASSIGN_B) | \ + BIT(DP_PIN_ASSIGN_D) | \ + BIT(DP_PIN_ASSIGN_F)) + +enum dp_state { + DP_STATE_IDLE, + DP_STATE_ENTER, + DP_STATE_UPDATE, + DP_STATE_CONFIGURE, + DP_STATE_EXIT, +}; + +struct dp_altmode { + struct typec_displayport_data data; + + enum dp_state state; + + struct mutex lock; /* device lock */ + struct work_struct work; + struct typec_altmode *alt; + const struct typec_altmode *port; +}; + +static int dp_altmode_notify(struct dp_altmode *dp) +{ + u8 state = get_count_order(DP_CONF_GET_PIN_ASSIGN(dp->data.conf)); + + return typec_altmode_notify(dp->alt, TYPEC_MODAL_STATE(state), + &dp->data); +} + +static int dp_altmode_configure(struct dp_altmode *dp, u8 con) +{ + u32 conf = DP_CONF_SIGNALING_DP; /* Only DP signaling supported */ + u8 pin_assign = 0; + + switch (con) { + case DP_STATUS_CON_DISABLED: + return 0; + case DP_STATUS_CON_DFP_D: + conf |= DP_CONF_UFP_U_AS_DFP_D; + pin_assign = DP_CAP_UFP_D_PIN_ASSIGN(dp->alt->vdo) & + DP_CAP_DFP_D_PIN_ASSIGN(dp->port->vdo); + break; + case DP_STATUS_CON_UFP_D: + case DP_STATUS_CON_BOTH: /* NOTE: First acting as DP source */ + conf |= DP_CONF_UFP_U_AS_UFP_D; + pin_assign = DP_CAP_DFP_D_PIN_ASSIGN(dp->alt->vdo) & + DP_CAP_UFP_D_PIN_ASSIGN(dp->port->vdo); + break; + default: + break; + } + + /* Determining the initial pin assignment. */ + if (!DP_CONF_GET_PIN_ASSIGN(dp->data.conf)) { + /* Is USB together with DP preferred */ + if (dp->data.status & DP_STATUS_PREFER_MULTI_FUNC && + pin_assign & DP_PIN_ASSIGN_MULTI_FUNC_MASK) + pin_assign &= DP_PIN_ASSIGN_MULTI_FUNC_MASK; + else + pin_assign &= DP_PIN_ASSIGN_DP_ONLY_MASK; + + if (!pin_assign) + return -EINVAL; + + conf |= DP_CONF_SET_PIN_ASSIGN(pin_assign); + } + + dp->data.conf = conf; + + return 0; +} + +static int dp_altmode_status_update(struct dp_altmode *dp) +{ + bool configured = !!DP_CONF_GET_PIN_ASSIGN(dp->data.conf); + u8 con = DP_STATUS_CONNECTION(dp->data.status); + int ret = 0; + + if (configured && (dp->data.status & DP_STATUS_SWITCH_TO_USB)) { + dp->data.conf = 0; + dp->state = DP_STATE_CONFIGURE; + } else if (dp->data.status & DP_STATUS_EXIT_DP_MODE) { + dp->state = DP_STATE_EXIT; + } else if (!(con & DP_CONF_CURRENTLY(dp->data.conf))) { + ret = dp_altmode_configure(dp, con); + if (!ret) + dp->state = DP_STATE_CONFIGURE; + } + + return ret; +} + +static int dp_altmode_configured(struct dp_altmode *dp) +{ + int ret; + + sysfs_notify(&dp->alt->dev.kobj, "displayport", "configuration"); + + if (!dp->data.conf) + return typec_altmode_notify(dp->alt, TYPEC_STATE_USB, + &dp->data); + + ret = dp_altmode_notify(dp); + if (ret) + return ret; + + sysfs_notify(&dp->alt->dev.kobj, "displayport", "pin_assignment"); + + return 0; +} + +static int dp_altmode_configure_vdm(struct dp_altmode *dp, u32 conf) +{ + u32 header = DP_HEADER(DP_CMD_CONFIGURE); + int ret; + + ret = typec_altmode_notify(dp->alt, TYPEC_STATE_SAFE, &dp->data); + if (ret) { + dev_err(&dp->alt->dev, + "unable to put to connector to safe mode\n"); + return ret; + } + + ret = typec_altmode_vdm(dp->alt, header, &conf, 2); + if (ret) { + if (DP_CONF_GET_PIN_ASSIGN(dp->data.conf)) + dp_altmode_notify(dp); + else + typec_altmode_notify(dp->alt, TYPEC_STATE_USB, + &dp->data); + } + + return ret; +} + +static void dp_altmode_work(struct work_struct *work) +{ + struct dp_altmode *dp = container_of(work, struct dp_altmode, work); + u32 header; + u32 vdo; + int ret; + + mutex_lock(&dp->lock); + + switch (dp->state) { + case DP_STATE_ENTER: + ret = typec_altmode_enter(dp->alt); + if (ret) + dev_err(&dp->alt->dev, "failed to enter mode\n"); + break; + case DP_STATE_UPDATE: + header = DP_HEADER(DP_CMD_STATUS_UPDATE); + vdo = 1; + ret = typec_altmode_vdm(dp->alt, header, &vdo, 2); + if (ret) + dev_err(&dp->alt->dev, + "unable to send Status Update command (%d)\n", + ret); + break; + case DP_STATE_CONFIGURE: + ret = dp_altmode_configure_vdm(dp, dp->data.conf); + if (ret) + dev_err(&dp->alt->dev, + "unable to send Configure command (%d)\n", ret); + break; + case DP_STATE_EXIT: + if (typec_altmode_exit(dp->alt)) + dev_err(&dp->alt->dev, "Exit Mode Failed!\n"); + break; + default: + break; + } + + dp->state = DP_STATE_IDLE; + + mutex_unlock(&dp->lock); +} + +static void dp_altmode_attention(struct typec_altmode *alt, const u32 vdo) +{ + struct dp_altmode *dp = typec_altmode_get_drvdata(alt); + u8 old_state; + + mutex_lock(&dp->lock); + + old_state = dp->state; + dp->data.status = vdo; + + if (old_state != DP_STATE_IDLE) + dev_warn(&alt->dev, "ATTENTION while processing state %d\n", + old_state); + + if (dp_altmode_status_update(dp)) + dev_warn(&alt->dev, "%s: status update failed\n", __func__); + + if (dp_altmode_notify(dp)) + dev_err(&alt->dev, "%s: notification failed\n", __func__); + + if (old_state == DP_STATE_IDLE && dp->state != DP_STATE_IDLE) + schedule_work(&dp->work); + + mutex_unlock(&dp->lock); +} + +static int dp_altmode_vdm(struct typec_altmode *alt, + const u32 hdr, const u32 *vdo, int count) +{ + struct dp_altmode *dp = typec_altmode_get_drvdata(alt); + int cmd_type = PD_VDO_CMDT(hdr); + int cmd = PD_VDO_CMD(hdr); + int ret = 0; + + mutex_lock(&dp->lock); + + if (dp->state != DP_STATE_IDLE) { + ret = -EBUSY; + goto err_unlock; + } + + switch (cmd_type) { + case CMDT_RSP_ACK: + switch (cmd) { + case CMD_ENTER_MODE: + dp->state = DP_STATE_UPDATE; + break; + case CMD_EXIT_MODE: + dp->data.status = 0; + dp->data.conf = 0; + break; + case DP_CMD_STATUS_UPDATE: + dp->data.status = *vdo; + ret = dp_altmode_status_update(dp); + break; + case DP_CMD_CONFIGURE: + ret = dp_altmode_configured(dp); + break; + default: + break; + } + break; + case CMDT_RSP_NAK: + switch (cmd) { + case DP_CMD_CONFIGURE: + dp->data.conf = 0; + ret = dp_altmode_configured(dp); + break; + default: + break; + } + break; + default: + break; + } + + if (dp->state != DP_STATE_IDLE) + schedule_work(&dp->work); + +err_unlock: + mutex_unlock(&dp->lock); + return ret; +} + +static int dp_altmode_activate(struct typec_altmode *alt, int activate) +{ + return activate ? typec_altmode_enter(alt) : typec_altmode_exit(alt); +} + +static const struct typec_altmode_ops dp_altmode_ops = { + .attention = dp_altmode_attention, + .vdm = dp_altmode_vdm, + .activate = dp_altmode_activate, +}; + +static const char * const configurations[] = { + [DP_CONF_USB] = "USB", + [DP_CONF_DFP_D] = "source", + [DP_CONF_UFP_D] = "sink", +}; + +static ssize_t +configuration_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t size) +{ + struct dp_altmode *dp = dev_get_drvdata(dev); + u32 conf; + u32 cap; + int con; + int ret = 0; + + con = sysfs_match_string(configurations, buf); + if (con < 0) + return con; + + mutex_lock(&dp->lock); + + if (dp->state != DP_STATE_IDLE) { + ret = -EBUSY; + goto err_unlock; + } + + cap = DP_CAP_CAPABILITY(dp->alt->vdo); + + if ((con == DP_CONF_DFP_D && !(cap & DP_CAP_DFP_D)) || + (con == DP_CONF_UFP_D && !(cap & DP_CAP_UFP_D))) { + ret = -EINVAL; + goto err_unlock; + } + + conf = dp->data.conf & ~DP_CONF_DUAL_D; + conf |= con; + + if (dp->alt->active) { + ret = dp_altmode_configure_vdm(dp, conf); + if (ret) + goto err_unlock; + } + + dp->data.conf = conf; + +err_unlock: + mutex_unlock(&dp->lock); + + return ret ? ret : size; +} + +static ssize_t configuration_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct dp_altmode *dp = dev_get_drvdata(dev); + int len; + u8 cap; + u8 cur; + int i; + + mutex_lock(&dp->lock); + + cap = DP_CAP_CAPABILITY(dp->alt->vdo); + cur = DP_CONF_CURRENTLY(dp->data.conf); + + len = sprintf(buf, "%s ", cur ? "USB" : "[USB]"); + + for (i = 1; i < ARRAY_SIZE(configurations); i++) { + if (i == cur) + len += sprintf(buf + len, "[%s] ", configurations[i]); + else if ((i == DP_CONF_DFP_D && cap & DP_CAP_DFP_D) || + (i == DP_CONF_UFP_D && cap & DP_CAP_UFP_D)) + len += sprintf(buf + len, "%s ", configurations[i]); + } + + mutex_unlock(&dp->lock); + + buf[len - 1] = '\n'; + return len; +} +static DEVICE_ATTR_RW(configuration); + +static const char * const pin_assignments[] = { + [DP_PIN_ASSIGN_A] = "A", + [DP_PIN_ASSIGN_B] = "B", + [DP_PIN_ASSIGN_C] = "C", + [DP_PIN_ASSIGN_D] = "D", + [DP_PIN_ASSIGN_E] = "E", + [DP_PIN_ASSIGN_F] = "F", +}; + +static ssize_t +pin_assignment_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t size) +{ + struct dp_altmode *dp = dev_get_drvdata(dev); + u8 assignments; + u32 conf; + int ret; + + ret = sysfs_match_string(pin_assignments, buf); + if (ret < 0) + return ret; + + conf = DP_CONF_SET_PIN_ASSIGN(BIT(ret)); + ret = 0; + + mutex_lock(&dp->lock); + + if (conf & dp->data.conf) + goto out_unlock; + + if (dp->state != DP_STATE_IDLE) { + ret = -EBUSY; + goto out_unlock; + } + + if (DP_CONF_CURRENTLY(dp->data.conf) == DP_CONF_DFP_D) + assignments = DP_CAP_UFP_D_PIN_ASSIGN(dp->alt->vdo); + else + assignments = DP_CAP_DFP_D_PIN_ASSIGN(dp->alt->vdo); + + if (!(DP_CONF_GET_PIN_ASSIGN(conf) & assignments)) { + ret = -EINVAL; + goto out_unlock; + } + + conf |= dp->data.conf & ~DP_CONF_PIN_ASSIGNEMENT_MASK; + + /* Only send Configure command if a configuration has been set */ + if (dp->alt->active && DP_CONF_CURRENTLY(dp->data.conf)) { + ret = dp_altmode_configure_vdm(dp, conf); + if (ret) + goto out_unlock; + } + + dp->data.conf = conf; + +out_unlock: + mutex_unlock(&dp->lock); + + return ret ? ret : size; +} + +static ssize_t pin_assignment_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct dp_altmode *dp = dev_get_drvdata(dev); + u8 assignments; + int len = 0; + u8 cur; + int i; + + mutex_lock(&dp->lock); + + cur = get_count_order(DP_CONF_GET_PIN_ASSIGN(dp->data.conf)); + + if (DP_CONF_CURRENTLY(dp->data.conf) == DP_CONF_DFP_D) + assignments = DP_CAP_UFP_D_PIN_ASSIGN(dp->alt->vdo); + else + assignments = DP_CAP_DFP_D_PIN_ASSIGN(dp->alt->vdo); + + for (i = 0; assignments; assignments >>= 1, i++) { + if (assignments & 1) { + if (i == cur) + len += sprintf(buf + len, "[%s] ", + pin_assignments[i]); + else + len += sprintf(buf + len, "%s ", + pin_assignments[i]); + } + } + + mutex_unlock(&dp->lock); + + buf[len - 1] = '\n'; + return len; +} +static DEVICE_ATTR_RW(pin_assignment); + +static struct attribute *dp_altmode_attrs[] = { + &dev_attr_configuration.attr, + &dev_attr_pin_assignment.attr, + NULL +}; + +static const struct attribute_group dp_altmode_group = { + .name = "displayport", + .attrs = dp_altmode_attrs, +}; + +static int dp_altmode_probe(struct typec_altmode *alt) +{ + const struct typec_altmode *port = typec_altmode_get_partner(alt); + struct dp_altmode *dp; + int ret; + + /* FIXME: Port can only be DFP_U. */ + + /* Make sure we have compatiple pin configurations */ + if (!(DP_CAP_DFP_D_PIN_ASSIGN(port->vdo) & + DP_CAP_UFP_D_PIN_ASSIGN(alt->vdo)) && + !(DP_CAP_UFP_D_PIN_ASSIGN(port->vdo) & + DP_CAP_DFP_D_PIN_ASSIGN(alt->vdo))) + return -ENODEV; + + ret = sysfs_create_group(&alt->dev.kobj, &dp_altmode_group); + if (ret) + return ret; + + dp = devm_kzalloc(&alt->dev, sizeof(*dp), GFP_KERNEL); + if (!dp) + return -ENOMEM; + + INIT_WORK(&dp->work, dp_altmode_work); + mutex_init(&dp->lock); + dp->port = port; + dp->alt = alt; + + alt->desc = "DisplayPort"; + alt->ops = &dp_altmode_ops; + + typec_altmode_set_drvdata(alt, dp); + + dp->state = DP_STATE_ENTER; + schedule_work(&dp->work); + + return 0; +} + +static void dp_altmode_remove(struct typec_altmode *alt) +{ + struct dp_altmode *dp = typec_altmode_get_drvdata(alt); + + sysfs_remove_group(&alt->dev.kobj, &dp_altmode_group); + cancel_work_sync(&dp->work); +} + +static const struct typec_device_id dp_typec_id[] = { + { USB_TYPEC_DP_SID, USB_TYPEC_DP_MODE }, + { }, +}; +MODULE_DEVICE_TABLE(typec, dp_typec_id); + +static struct typec_altmode_driver dp_altmode_driver = { + .id_table = dp_typec_id, + .probe = dp_altmode_probe, + .remove = dp_altmode_remove, + .driver = { + .name = "typec_displayport", + .owner = THIS_MODULE, + }, +}; +module_typec_altmode_driver(dp_altmode_driver); + +MODULE_AUTHOR("Heikki Krogerus <heikki.krogerus@linux.intel.com>"); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("DisplayPort Alternate Mode"); diff --git a/drivers/usb/typec/bus.c b/drivers/usb/typec/bus.c new file mode 100644 index 000000000000..95a2b10127db --- /dev/null +++ b/drivers/usb/typec/bus.c @@ -0,0 +1,402 @@ +// SPDX-License-Identifier: GPL-2.0 +/** + * Bus for USB Type-C Alternate Modes + * + * Copyright (C) 2018 Intel Corporation + * Author: Heikki Krogerus <heikki.krogerus@linux.intel.com> + */ + +#include <linux/usb/pd_vdo.h> + +#include "bus.h" + +static inline int typec_altmode_set_mux(struct altmode *alt, u8 state) +{ + return alt->mux ? alt->mux->set(alt->mux, state) : 0; +} + +static int typec_altmode_set_state(struct typec_altmode *adev, int state) +{ + bool is_port = is_typec_port(adev->dev.parent); + struct altmode *port_altmode; + int ret; + + port_altmode = is_port ? to_altmode(adev) : to_altmode(adev)->partner; + + ret = typec_altmode_set_mux(port_altmode, state); + if (ret) + return ret; + + blocking_notifier_call_chain(&port_altmode->nh, state, NULL); + + return 0; +} + +/* -------------------------------------------------------------------------- */ +/* Common API */ + +/** + * typec_altmode_notify - Communication between the OS and alternate mode driver + * @adev: Handle to the alternate mode + * @conf: Alternate mode specific configuration value + * @data: Alternate mode specific data + * + * The primary purpose for this function is to allow the alternate mode drivers + * to tell which pin configuration has been negotiated with the partner. That + * information will then be used for example to configure the muxes. + * Communication to the other direction is also possible, and low level device + * drivers can also send notifications to the alternate mode drivers. The actual + * communication will be specific for every SVID. + */ +int typec_altmode_notify(struct typec_altmode *adev, + unsigned long conf, void *data) +{ + bool is_port; + struct altmode *altmode; + struct altmode *partner; + int ret; + + if (!adev) + return 0; + + altmode = to_altmode(adev); + + if (!altmode->partner) + return -ENODEV; + + is_port = is_typec_port(adev->dev.parent); + partner = altmode->partner; + + ret = typec_altmode_set_mux(is_port ? altmode : partner, (u8)conf); + if (ret) + return ret; + + blocking_notifier_call_chain(is_port ? &altmode->nh : &partner->nh, + conf, data); + + if (partner->adev.ops && partner->adev.ops->notify) + return partner->adev.ops->notify(&partner->adev, conf, data); + + return 0; +} +EXPORT_SYMBOL_GPL(typec_altmode_notify); + +/** + * typec_altmode_enter - Enter Mode + * @adev: The alternate mode + * + * The alternate mode drivers use this function to enter mode. The port drivers + * use this to inform the alternate mode drivers that the partner has initiated + * Enter Mode command. + */ +int typec_altmode_enter(struct typec_altmode *adev) +{ + struct altmode *partner = to_altmode(adev)->partner; + struct typec_altmode *pdev = &partner->adev; + int ret; + + if (!adev || adev->active) + return 0; + + if (!pdev->ops || !pdev->ops->enter) + return -EOPNOTSUPP; + + /* Moving to USB Safe State */ + ret = typec_altmode_set_state(adev, TYPEC_STATE_SAFE); + if (ret) + return ret; + + /* Enter Mode */ + return pdev->ops->enter(pdev); +} +EXPORT_SYMBOL_GPL(typec_altmode_enter); + +/** + * typec_altmode_exit - Exit Mode + * @adev: The alternate mode + * + * The partner of @adev has initiated Exit Mode command. + */ +int typec_altmode_exit(struct typec_altmode *adev) +{ + struct altmode *partner = to_altmode(adev)->partner; + struct typec_altmode *pdev = &partner->adev; + int ret; + + if (!adev || !adev->active) + return 0; + + if (!pdev->ops || !pdev->ops->enter) + return -EOPNOTSUPP; + + /* Moving to USB Safe State */ + ret = typec_altmode_set_state(adev, TYPEC_STATE_SAFE); + if (ret) + return ret; + + /* Exit Mode command */ + return pdev->ops->exit(pdev); +} +EXPORT_SYMBOL_GPL(typec_altmode_exit); + +/** + * typec_altmode_attention - Attention command + * @adev: The alternate mode + * @vdo: VDO for the Attention command + * + * Notifies the partner of @adev about Attention command. + */ +void typec_altmode_attention(struct typec_altmode *adev, u32 vdo) +{ + struct typec_altmode *pdev = &to_altmode(adev)->partner->adev; + + if (pdev->ops && pdev->ops->attention) + pdev->ops->attention(pdev, vdo); +} +EXPORT_SYMBOL_GPL(typec_altmode_attention); + +/** + * typec_altmode_vdm - Send Vendor Defined Messages (VDM) to the partner + * @adev: Alternate mode handle + * @header: VDM Header + * @vdo: Array of Vendor Defined Data Objects + * @count: Number of Data Objects + * + * The alternate mode drivers use this function for SVID specific communication + * with the partner. The port drivers use it to deliver the Structured VDMs + * received from the partners to the alternate mode drivers. + */ +int typec_altmode_vdm(struct typec_altmode *adev, + const u32 header, const u32 *vdo, int count) +{ + struct typec_altmode *pdev; + struct altmode *altmode; + + if (!adev) + return 0; + + altmode = to_altmode(adev); + + if (!altmode->partner) + return -ENODEV; + + pdev = &altmode->partner->adev; + + if (!pdev->ops || !pdev->ops->vdm) + return -EOPNOTSUPP; + + return pdev->ops->vdm(pdev, header, vdo, count); +} +EXPORT_SYMBOL_GPL(typec_altmode_vdm); + +const struct typec_altmode * +typec_altmode_get_partner(struct typec_altmode *adev) +{ + return &to_altmode(adev)->partner->adev; +} +EXPORT_SYMBOL_GPL(typec_altmode_get_partner); + +/* -------------------------------------------------------------------------- */ +/* API for the alternate mode drivers */ + +/** + * typec_altmode_get_plug - Find cable plug alternate mode + * @adev: Handle to partner alternate mode + * @index: Cable plug index + * + * Increment reference count for cable plug alternate mode device. Returns + * handle to the cable plug alternate mode, or NULL if none is found. + */ +struct typec_altmode *typec_altmode_get_plug(struct typec_altmode *adev, + enum typec_plug_index index) +{ + struct altmode *port = to_altmode(adev)->partner; + + if (port->plug[index]) { + get_device(&port->plug[index]->adev.dev); + return &port->plug[index]->adev; + } + + return NULL; +} +EXPORT_SYMBOL_GPL(typec_altmode_get_plug); + +/** + * typec_altmode_put_plug - Decrement cable plug alternate mode reference count + * @plug: Handle to the cable plug alternate mode + */ +void typec_altmode_put_plug(struct typec_altmode *plug) +{ + if (plug) + put_device(&plug->dev); +} +EXPORT_SYMBOL_GPL(typec_altmode_put_plug); + +int __typec_altmode_register_driver(struct typec_altmode_driver *drv, + struct module *module) +{ + if (!drv->probe) + return -EINVAL; + + drv->driver.owner = module; + drv->driver.bus = &typec_bus; + + return driver_register(&drv->driver); +} +EXPORT_SYMBOL_GPL(__typec_altmode_register_driver); + +void typec_altmode_unregister_driver(struct typec_altmode_driver *drv) +{ + driver_unregister(&drv->driver); +} +EXPORT_SYMBOL_GPL(typec_altmode_unregister_driver); + +/* -------------------------------------------------------------------------- */ +/* API for the port drivers */ + +/** + * typec_match_altmode - Match SVID to an array of alternate modes + * @altmodes: Array of alternate modes + * @n: Number of elements in the array, or -1 for NULL termiated arrays + * @svid: Standard or Vendor ID to match with + * + * Return pointer to an alternate mode with SVID mathing @svid, or NULL when no + * match is found. + */ +struct typec_altmode *typec_match_altmode(struct typec_altmode **altmodes, + size_t n, u16 svid, u8 mode) +{ + int i; + + for (i = 0; i < n; i++) { + if (!altmodes[i]) + break; + if (altmodes[i]->svid == svid && altmodes[i]->mode == mode) + return altmodes[i]; + } + + return NULL; +} +EXPORT_SYMBOL_GPL(typec_match_altmode); + +/* -------------------------------------------------------------------------- */ + +static ssize_t +description_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct typec_altmode *alt = to_typec_altmode(dev); + + return sprintf(buf, "%s\n", alt->desc ? alt->desc : ""); +} +static DEVICE_ATTR_RO(description); + +static struct attribute *typec_attrs[] = { + &dev_attr_description.attr, + NULL +}; +ATTRIBUTE_GROUPS(typec); + +static int typec_match(struct device *dev, struct device_driver *driver) +{ + struct typec_altmode_driver *drv = to_altmode_driver(driver); + struct typec_altmode *altmode = to_typec_altmode(dev); + const struct typec_device_id *id; + + for (id = drv->id_table; id->svid; id++) + if (id->svid == altmode->svid && + (id->mode == TYPEC_ANY_MODE || id->mode == altmode->mode)) + return 1; + return 0; +} + +static int typec_uevent(struct device *dev, struct kobj_uevent_env *env) +{ + struct typec_altmode *altmode = to_typec_altmode(dev); + + if (add_uevent_var(env, "SVID=%04X", altmode->svid)) + return -ENOMEM; + + if (add_uevent_var(env, "MODE=%u", altmode->mode)) + return -ENOMEM; + + return add_uevent_var(env, "MODALIAS=typec:id%04Xm%02X", + altmode->svid, altmode->mode); +} + +static int typec_altmode_create_links(struct altmode *alt) +{ + struct device *port_dev = &alt->partner->adev.dev; + struct device *dev = &alt->adev.dev; + int err; + + err = sysfs_create_link(&dev->kobj, &port_dev->kobj, "port"); + if (err) + return err; + + err = sysfs_create_link(&port_dev->kobj, &dev->kobj, "partner"); + if (err) + sysfs_remove_link(&dev->kobj, "port"); + + return err; +} + +static void typec_altmode_remove_links(struct altmode *alt) +{ + sysfs_remove_link(&alt->partner->adev.dev.kobj, "partner"); + sysfs_remove_link(&alt->adev.dev.kobj, "port"); +} + +static int typec_probe(struct device *dev) +{ + struct typec_altmode_driver *drv = to_altmode_driver(dev->driver); + struct typec_altmode *adev = to_typec_altmode(dev); + struct altmode *altmode = to_altmode(adev); + int ret; + + /* Fail if the port does not support the alternate mode */ + if (!altmode->partner) + return -ENODEV; + + ret = typec_altmode_create_links(altmode); + if (ret) { + dev_warn(dev, "failed to create symlinks\n"); + return ret; + } + + ret = drv->probe(adev); + if (ret) + typec_altmode_remove_links(altmode); + + return ret; +} + +static int typec_remove(struct device *dev) +{ + struct typec_altmode_driver *drv = to_altmode_driver(dev->driver); + struct typec_altmode *adev = to_typec_altmode(dev); + struct altmode *altmode = to_altmode(adev); + + typec_altmode_remove_links(altmode); + + if (drv->remove) + drv->remove(to_typec_altmode(dev)); + + if (adev->active) { + WARN_ON(typec_altmode_set_state(adev, TYPEC_STATE_SAFE)); + typec_altmode_update_active(adev, false); + } + + adev->desc = NULL; + adev->ops = NULL; + + return 0; +} + +struct bus_type typec_bus = { + .name = "typec", + .dev_groups = typec_groups, + .match = typec_match, + .uevent = typec_uevent, + .probe = typec_probe, + .remove = typec_remove, +}; diff --git a/drivers/usb/typec/bus.h b/drivers/usb/typec/bus.h new file mode 100644 index 000000000000..db40e61d8b72 --- /dev/null +++ b/drivers/usb/typec/bus.h @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __USB_TYPEC_ALTMODE_H__ +#define __USB_TYPEC_ALTMODE_H__ + +#include <linux/usb/typec_altmode.h> +#include <linux/usb/typec_mux.h> + +struct bus_type; + +struct altmode { + unsigned int id; + struct typec_altmode adev; + struct typec_mux *mux; + + enum typec_port_data roles; + + struct attribute *attrs[5]; + char group_name[8]; + struct attribute_group group; + const struct attribute_group *groups[2]; + + struct altmode *partner; + struct altmode *plug[2]; + + struct blocking_notifier_head nh; +}; + +#define to_altmode(d) container_of(d, struct altmode, adev) + +extern struct bus_type typec_bus; +extern const struct device_type typec_altmode_dev_type; +extern const struct device_type typec_port_dev_type; + +#define is_typec_altmode(_dev_) (_dev_->type == &typec_altmode_dev_type) +#define is_typec_port(_dev_) (_dev_->type == &typec_port_dev_type) + +#endif /* __USB_TYPEC_ALTMODE_H__ */ diff --git a/drivers/usb/typec/class.c b/drivers/usb/typec/class.c index 53df10df2f9d..c202975f8097 100644 --- a/drivers/usb/typec/class.c +++ b/drivers/usb/typec/class.c @@ -10,39 +10,13 @@ #include <linux/module.h> #include <linux/mutex.h> #include <linux/slab.h> -#include <linux/usb/typec.h> -#include <linux/usb/typec_mux.h> -struct typec_mode { - int index; - u32 vdo; - char *desc; - enum typec_port_type roles; - - struct typec_altmode *alt_mode; - - unsigned int active:1; - - char group_name[6]; - struct attribute_group group; - struct attribute *attrs[5]; - struct device_attribute vdo_attr; - struct device_attribute desc_attr; - struct device_attribute active_attr; - struct device_attribute roles_attr; -}; - -struct typec_altmode { - struct device dev; - u16 svid; - int n_modes; - struct typec_mode modes[ALTMODE_MAX_MODES]; - const struct attribute_group *mode_groups[ALTMODE_MAX_MODES]; -}; +#include "bus.h" struct typec_plug { struct device dev; enum typec_plug_index index; + struct ida mode_ids; }; struct typec_cable { @@ -57,11 +31,13 @@ struct typec_partner { unsigned int usb_pd:1; struct usb_pd_identity *identity; enum typec_accessory accessory; + struct ida mode_ids; }; struct typec_port { unsigned int id; struct device dev; + struct ida mode_ids; int prefer_role; enum typec_data_role data_role; @@ -82,17 +58,14 @@ struct typec_port { #define to_typec_plug(_dev_) container_of(_dev_, struct typec_plug, dev) #define to_typec_cable(_dev_) container_of(_dev_, struct typec_cable, dev) #define to_typec_partner(_dev_) container_of(_dev_, struct typec_partner, dev) -#define to_altmode(_dev_) container_of(_dev_, struct typec_altmode, dev) static const struct device_type typec_partner_dev_type; static const struct device_type typec_cable_dev_type; static const struct device_type typec_plug_dev_type; -static const struct device_type typec_port_dev_type; #define is_typec_partner(_dev_) (_dev_->type == &typec_partner_dev_type) #define is_typec_cable(_dev_) (_dev_->type == &typec_cable_dev_type) #define is_typec_plug(_dev_) (_dev_->type == &typec_plug_dev_type) -#define is_typec_port(_dev_) (_dev_->type == &typec_port_dev_type) static DEFINE_IDA(typec_index_ida); static struct class *typec_class; @@ -174,28 +147,148 @@ static void typec_report_identity(struct device *dev) /* ------------------------------------------------------------------------- */ /* Alternate Modes */ +static int altmode_match(struct device *dev, void *data) +{ + struct typec_altmode *adev = to_typec_altmode(dev); + struct typec_device_id *id = data; + + if (!is_typec_altmode(dev)) + return 0; + + return ((adev->svid == id->svid) && (adev->mode == id->mode)); +} + +static void typec_altmode_set_partner(struct altmode *altmode) +{ + struct typec_altmode *adev = &altmode->adev; + struct typec_device_id id = { adev->svid, adev->mode, }; + struct typec_port *port = typec_altmode2port(adev); + struct altmode *partner; + struct device *dev; + + dev = device_find_child(&port->dev, &id, altmode_match); + if (!dev) + return; + + /* Bind the port alt mode to the partner/plug alt mode. */ + partner = to_altmode(to_typec_altmode(dev)); + altmode->partner = partner; + + /* Bind the partner/plug alt mode to the port alt mode. */ + if (is_typec_plug(adev->dev.parent)) { + struct typec_plug *plug = to_typec_plug(adev->dev.parent); + + partner->plug[plug->index] = altmode; + } else { + partner->partner = altmode; + } +} + +static void typec_altmode_put_partner(struct altmode *altmode) +{ + struct altmode *partner = altmode->partner; + struct typec_altmode *adev; + + if (!partner) + return; + + adev = &partner->adev; + + if (is_typec_plug(adev->dev.parent)) { + struct typec_plug *plug = to_typec_plug(adev->dev.parent); + + partner->plug[plug->index] = NULL; + } else { + partner->partner = NULL; + } + put_device(&adev->dev); +} + +static int __typec_port_match(struct device *dev, const void *name) +{ + return !strcmp((const char *)name, dev_name(dev)); +} + +static void *typec_port_match(struct device_connection *con, int ep, void *data) +{ + return class_find_device(typec_class, NULL, con->endpoint[ep], + __typec_port_match); +} + +struct typec_altmode * +typec_altmode_register_notifier(struct device *dev, u16 svid, u8 mode, + struct notifier_block *nb) +{ + struct typec_device_id id = { svid, mode, }; + struct device *altmode_dev; + struct device *port_dev; + struct altmode *altmode; + int ret; + + /* Find the port linked to the caller */ + port_dev = device_connection_find_match(dev, NULL, NULL, + typec_port_match); + if (IS_ERR_OR_NULL(port_dev)) + return port_dev ? ERR_CAST(port_dev) : ERR_PTR(-ENODEV); + + /* Find the altmode with matching svid */ + altmode_dev = device_find_child(port_dev, &id, altmode_match); + + put_device(port_dev); + + if (!altmode_dev) + return ERR_PTR(-ENODEV); + + altmode = to_altmode(to_typec_altmode(altmode_dev)); + + /* Register notifier */ + ret = blocking_notifier_chain_register(&altmode->nh, nb); + if (ret) { + put_device(altmode_dev); + return ERR_PTR(ret); + } + + return &altmode->adev; +} +EXPORT_SYMBOL_GPL(typec_altmode_register_notifier); + +void typec_altmode_unregister_notifier(struct typec_altmode *adev, + struct notifier_block *nb) +{ + struct altmode *altmode = to_altmode(adev); + + blocking_notifier_chain_unregister(&altmode->nh, nb); + put_device(&adev->dev); +} +EXPORT_SYMBOL_GPL(typec_altmode_unregister_notifier); + /** * typec_altmode_update_active - Report Enter/Exit mode - * @alt: Handle to the alternate mode - * @mode: Mode index + * @adev: Handle to the alternate mode * @active: True when the mode has been entered * * If a partner or cable plug executes Enter/Exit Mode command successfully, the * drivers use this routine to report the updated state of the mode. */ -void typec_altmode_update_active(struct typec_altmode *alt, int mode, - bool active) +void typec_altmode_update_active(struct typec_altmode *adev, bool active) { - struct typec_mode *m = &alt->modes[mode]; char dir[6]; - if (m->active == active) + if (adev->active == active) return; - m->active = active; - snprintf(dir, sizeof(dir), "mode%d", mode); - sysfs_notify(&alt->dev.kobj, dir, "active"); - kobject_uevent(&alt->dev.kobj, KOBJ_CHANGE); + if (!is_typec_port(adev->dev.parent)) { + if (!active) + module_put(adev->dev.driver->owner); + else + WARN_ON(!try_module_get(adev->dev.driver->owner)); + } + + adev->active = active; + snprintf(dir, sizeof(dir), "mode%d", adev->mode); + sysfs_notify(&adev->dev.kobj, dir, "active"); + sysfs_notify(&adev->dev.kobj, NULL, "active"); + kobject_uevent(&adev->dev.kobj, KOBJ_CHANGE); } EXPORT_SYMBOL_GPL(typec_altmode_update_active); @@ -220,68 +313,78 @@ struct typec_port *typec_altmode2port(struct typec_altmode *alt) EXPORT_SYMBOL_GPL(typec_altmode2port); static ssize_t -typec_altmode_vdo_show(struct device *dev, struct device_attribute *attr, - char *buf) +vdo_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct typec_mode *mode = container_of(attr, struct typec_mode, - vdo_attr); + struct typec_altmode *alt = to_typec_altmode(dev); - return sprintf(buf, "0x%08x\n", mode->vdo); + return sprintf(buf, "0x%08x\n", alt->vdo); } +static DEVICE_ATTR_RO(vdo); static ssize_t -typec_altmode_desc_show(struct device *dev, struct device_attribute *attr, - char *buf) +description_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct typec_mode *mode = container_of(attr, struct typec_mode, - desc_attr); + struct typec_altmode *alt = to_typec_altmode(dev); - return sprintf(buf, "%s\n", mode->desc ? mode->desc : ""); + return sprintf(buf, "%s\n", alt->desc ? alt->desc : ""); } +static DEVICE_ATTR_RO(description); static ssize_t -typec_altmode_active_show(struct device *dev, struct device_attribute *attr, - char *buf) +active_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct typec_mode *mode = container_of(attr, struct typec_mode, - active_attr); + struct typec_altmode *alt = to_typec_altmode(dev); - return sprintf(buf, "%s\n", mode->active ? "yes" : "no"); + return sprintf(buf, "%s\n", alt->active ? "yes" : "no"); } -static ssize_t -typec_altmode_active_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t size) +static ssize_t active_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t size) { - struct typec_mode *mode = container_of(attr, struct typec_mode, - active_attr); - struct typec_port *port = typec_altmode2port(mode->alt_mode); - bool activate; + struct typec_altmode *adev = to_typec_altmode(dev); + struct altmode *altmode = to_altmode(adev); + bool enter; int ret; - if (!port->cap->activate_mode) - return -EOPNOTSUPP; - - ret = kstrtobool(buf, &activate); + ret = kstrtobool(buf, &enter); if (ret) return ret; - ret = port->cap->activate_mode(port->cap, mode->index, activate); - if (ret) - return ret; + if (adev->active == enter) + return size; + + if (is_typec_port(adev->dev.parent)) { + typec_altmode_update_active(adev, enter); + + /* Make sure that the partner exits the mode before disabling */ + if (altmode->partner && !enter && altmode->partner->adev.active) + typec_altmode_exit(&altmode->partner->adev); + } else if (altmode->partner) { + if (enter && !altmode->partner->adev.active) { + dev_warn(dev, "port has the mode disabled\n"); + return -EPERM; + } + } + + /* Note: If there is no driver, the mode will not be entered */ + if (adev->ops && adev->ops->activate) { + ret = adev->ops->activate(adev, enter); + if (ret) + return ret; + } return size; } +static DEVICE_ATTR_RW(active); static ssize_t -typec_altmode_roles_show(struct device *dev, struct device_attribute *attr, - char *buf) +supported_roles_show(struct device *dev, struct device_attribute *attr, + char *buf) { - struct typec_mode *mode = container_of(attr, struct typec_mode, - roles_attr); + struct altmode *alt = to_altmode(to_typec_altmode(dev)); ssize_t ret; - switch (mode->roles) { + switch (alt->roles) { case TYPEC_PORT_SRC: ret = sprintf(buf, "source\n"); break; @@ -295,89 +398,74 @@ typec_altmode_roles_show(struct device *dev, struct device_attribute *attr, } return ret; } +static DEVICE_ATTR_RO(supported_roles); -static void typec_init_modes(struct typec_altmode *alt, - const struct typec_mode_desc *desc, bool is_port) +static ssize_t +mode_show(struct device *dev, struct device_attribute *attr, char *buf) { - int i; - - for (i = 0; i < alt->n_modes; i++, desc++) { - struct typec_mode *mode = &alt->modes[i]; - - /* Not considering the human readable description critical */ - mode->desc = kstrdup(desc->desc, GFP_KERNEL); - if (desc->desc && !mode->desc) - dev_err(&alt->dev, "failed to copy mode%d desc\n", i); - - mode->alt_mode = alt; - mode->vdo = desc->vdo; - mode->roles = desc->roles; - mode->index = desc->index; - sprintf(mode->group_name, "mode%d", desc->index); - - sysfs_attr_init(&mode->vdo_attr.attr); - mode->vdo_attr.attr.name = "vdo"; - mode->vdo_attr.attr.mode = 0444; - mode->vdo_attr.show = typec_altmode_vdo_show; - - sysfs_attr_init(&mode->desc_attr.attr); - mode->desc_attr.attr.name = "description"; - mode->desc_attr.attr.mode = 0444; - mode->desc_attr.show = typec_altmode_desc_show; - - sysfs_attr_init(&mode->active_attr.attr); - mode->active_attr.attr.name = "active"; - mode->active_attr.attr.mode = 0644; - mode->active_attr.show = typec_altmode_active_show; - mode->active_attr.store = typec_altmode_active_store; - - mode->attrs[0] = &mode->vdo_attr.attr; - mode->attrs[1] = &mode->desc_attr.attr; - mode->attrs[2] = &mode->active_attr.attr; - - /* With ports, list the roles that the mode is supported with */ - if (is_port) { - sysfs_attr_init(&mode->roles_attr.attr); - mode->roles_attr.attr.name = "supported_roles"; - mode->roles_attr.attr.mode = 0444; - mode->roles_attr.show = typec_altmode_roles_show; - - mode->attrs[3] = &mode->roles_attr.attr; - } + struct typec_altmode *adev = to_typec_altmode(dev); - mode->group.attrs = mode->attrs; - mode->group.name = mode->group_name; - - alt->mode_groups[i] = &mode->group; - } + return sprintf(buf, "%u\n", adev->mode); } +static DEVICE_ATTR_RO(mode); -static ssize_t svid_show(struct device *dev, struct device_attribute *attr, - char *buf) +static ssize_t +svid_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct typec_altmode *alt = to_altmode(dev); + struct typec_altmode *adev = to_typec_altmode(dev); - return sprintf(buf, "%04x\n", alt->svid); + return sprintf(buf, "%04x\n", adev->svid); } static DEVICE_ATTR_RO(svid); static struct attribute *typec_altmode_attrs[] = { + &dev_attr_active.attr, + &dev_attr_mode.attr, &dev_attr_svid.attr, + &dev_attr_vdo.attr, NULL }; ATTRIBUTE_GROUPS(typec_altmode); +static int altmode_id_get(struct device *dev) +{ + struct ida *ids; + + if (is_typec_partner(dev)) + ids = &to_typec_partner(dev)->mode_ids; + else if (is_typec_plug(dev)) + ids = &to_typec_plug(dev)->mode_ids; + else + ids = &to_typec_port(dev)->mode_ids; + + return ida_simple_get(ids, 0, 0, GFP_KERNEL); +} + +static void altmode_id_remove(struct device *dev, int id) +{ + struct ida *ids; + + if (is_typec_partner(dev)) + ids = &to_typec_partner(dev)->mode_ids; + else if (is_typec_plug(dev)) + ids = &to_typec_plug(dev)->mode_ids; + else + ids = &to_typec_port(dev)->mode_ids; + + ida_simple_remove(ids, id); +} + static void typec_altmode_release(struct device *dev) { - struct typec_altmode *alt = to_altmode(dev); - int i; + struct altmode *alt = to_altmode(to_typec_altmode(dev)); + + typec_altmode_put_partner(alt); - for (i = 0; i < alt->n_modes; i++) - kfree(alt->modes[i].desc); + altmode_id_remove(alt->adev.dev.parent, alt->id); kfree(alt); } -static const struct device_type typec_altmode_dev_type = { +const struct device_type typec_altmode_dev_type = { .name = "typec_alternate_mode", .groups = typec_altmode_groups, .release = typec_altmode_release, @@ -387,44 +475,74 @@ static struct typec_altmode * typec_register_altmode(struct device *parent, const struct typec_altmode_desc *desc) { - struct typec_altmode *alt; + unsigned int id = altmode_id_get(parent); + bool is_port = is_typec_port(parent); + struct altmode *alt; int ret; alt = kzalloc(sizeof(*alt), GFP_KERNEL); if (!alt) return ERR_PTR(-ENOMEM); - alt->svid = desc->svid; - alt->n_modes = desc->n_modes; - typec_init_modes(alt, desc->modes, is_typec_port(parent)); + alt->adev.svid = desc->svid; + alt->adev.mode = desc->mode; + alt->adev.vdo = desc->vdo; + alt->roles = desc->roles; + alt->id = id; + + alt->attrs[0] = &dev_attr_vdo.attr; + alt->attrs[1] = &dev_attr_description.attr; + alt->attrs[2] = &dev_attr_active.attr; + + if (is_port) { + alt->attrs[3] = &dev_attr_supported_roles.attr; + alt->adev.active = true; /* Enabled by default */ + } - alt->dev.parent = parent; - alt->dev.groups = alt->mode_groups; - alt->dev.type = &typec_altmode_dev_type; - dev_set_name(&alt->dev, "svid-%04x", alt->svid); + sprintf(alt->group_name, "mode%d", desc->mode); + alt->group.name = alt->group_name; + alt->group.attrs = alt->attrs; + alt->groups[0] = &alt->group; - ret = device_register(&alt->dev); + alt->adev.dev.parent = parent; + alt->adev.dev.groups = alt->groups; + alt->adev.dev.type = &typec_altmode_dev_type; + dev_set_name(&alt->adev.dev, "%s.%u", dev_name(parent), id); + + /* Link partners and plugs with the ports */ + if (is_port) + BLOCKING_INIT_NOTIFIER_HEAD(&alt->nh); + else + typec_altmode_set_partner(alt); + + /* The partners are bind to drivers */ + if (is_typec_partner(parent)) + alt->adev.dev.bus = &typec_bus; + + ret = device_register(&alt->adev.dev); if (ret) { dev_err(parent, "failed to register alternate mode (%d)\n", ret); - put_device(&alt->dev); + put_device(&alt->adev.dev); return ERR_PTR(ret); } - return alt; + return &alt->adev; } /** * typec_unregister_altmode - Unregister Alternate Mode - * @alt: The alternate mode to be unregistered + * @adev: The alternate mode to be unregistered * * Unregister device created with typec_partner_register_altmode(), * typec_plug_register_altmode() or typec_port_register_altmode(). */ -void typec_unregister_altmode(struct typec_altmode *alt) +void typec_unregister_altmode(struct typec_altmode *adev) { - if (!IS_ERR_OR_NULL(alt)) - device_unregister(&alt->dev); + if (IS_ERR_OR_NULL(adev)) + return; + typec_mux_put(to_altmode(adev)->mux); + device_unregister(&adev->dev); } EXPORT_SYMBOL_GPL(typec_unregister_altmode); @@ -462,6 +580,7 @@ static void typec_partner_release(struct device *dev) { struct typec_partner *partner = to_typec_partner(dev); + ida_destroy(&partner->mode_ids); kfree(partner); } @@ -527,6 +646,7 @@ struct typec_partner *typec_register_partner(struct typec_port *port, if (!partner) return ERR_PTR(-ENOMEM); + ida_init(&partner->mode_ids); partner->usb_pd = desc->usb_pd; partner->accessory = desc->accessory; @@ -575,6 +695,7 @@ static void typec_plug_release(struct device *dev) { struct typec_plug *plug = to_typec_plug(dev); + ida_destroy(&plug->mode_ids); kfree(plug); } @@ -627,6 +748,7 @@ struct typec_plug *typec_register_plug(struct typec_cable *cable, sprintf(name, "plug%d", desc->index); + ida_init(&plug->mode_ids); plug->index = desc->index; plug->dev.class = typec_class; plug->dev.parent = &cable->dev; @@ -796,12 +918,18 @@ static const char * const typec_data_roles[] = { [TYPEC_HOST] = "host", }; -static const char * const typec_port_types[] = { +static const char * const typec_port_power_roles[] = { [TYPEC_PORT_SRC] = "source", [TYPEC_PORT_SNK] = "sink", [TYPEC_PORT_DRP] = "dual", }; +static const char * const typec_port_data_roles[] = { + [TYPEC_PORT_DFP] = "host", + [TYPEC_PORT_UFP] = "device", + [TYPEC_PORT_DRD] = "dual", +}; + static const char * const typec_port_types_drp[] = { [TYPEC_PORT_SRC] = "dual [source] sink", [TYPEC_PORT_SNK] = "dual source [sink]", @@ -932,7 +1060,7 @@ static ssize_t power_role_store(struct device *dev, mutex_lock(&port->port_type_lock); if (port->port_type != TYPEC_PORT_DRP) { dev_dbg(dev, "port type fixed at \"%s\"", - typec_port_types[port->port_type]); + typec_port_power_roles[port->port_type]); ret = -EOPNOTSUPP; goto unlock_and_ret; } @@ -973,7 +1101,7 @@ port_type_store(struct device *dev, struct device_attribute *attr, return -EOPNOTSUPP; } - ret = sysfs_match_string(typec_port_types, buf); + ret = sysfs_match_string(typec_port_power_roles, buf); if (ret < 0) return ret; @@ -1007,7 +1135,7 @@ port_type_show(struct device *dev, struct device_attribute *attr, return sprintf(buf, "%s\n", typec_port_types_drp[port->port_type]); - return sprintf(buf, "[%s]\n", typec_port_types[port->cap->type]); + return sprintf(buf, "[%s]\n", typec_port_power_roles[port->cap->type]); } static DEVICE_ATTR_RW(port_type); @@ -1141,12 +1269,13 @@ static void typec_release(struct device *dev) struct typec_port *port = to_typec_port(dev); ida_simple_remove(&typec_index_ida, port->id); + ida_destroy(&port->mode_ids); typec_switch_put(port->sw); typec_mux_put(port->mux); kfree(port); } -static const struct device_type typec_port_dev_type = { +const struct device_type typec_port_dev_type = { .name = "typec_port", .groups = typec_groups, .uevent = typec_uevent, @@ -1252,6 +1381,50 @@ void typec_set_pwr_opmode(struct typec_port *port, } EXPORT_SYMBOL_GPL(typec_set_pwr_opmode); +/** + * typec_find_port_power_role - Get the typec port power capability + * @name: port power capability string + * + * This routine is used to find the typec_port_type by its string name. + * + * Returns typec_port_type if success, otherwise negative error code. + */ +int typec_find_port_power_role(const char *name) +{ + return match_string(typec_port_power_roles, + ARRAY_SIZE(typec_port_power_roles), name); +} +EXPORT_SYMBOL_GPL(typec_find_port_power_role); + +/** + * typec_find_power_role - Find the typec one specific power role + * @name: power role string + * + * This routine is used to find the typec_role by its string name. + * + * Returns typec_role if success, otherwise negative error code. + */ +int typec_find_power_role(const char *name) +{ + return match_string(typec_roles, ARRAY_SIZE(typec_roles), name); +} +EXPORT_SYMBOL_GPL(typec_find_power_role); + +/** + * typec_find_port_data_role - Get the typec port data capability + * @name: port data capability string + * + * This routine is used to find the typec_port_data by its string name. + * + * Returns typec_port_data if success, otherwise negative error code. + */ +int typec_find_port_data_role(const char *name) +{ + return match_string(typec_port_data_roles, + ARRAY_SIZE(typec_port_data_roles), name); +} +EXPORT_SYMBOL_GPL(typec_find_port_data_role); + /* ------------------------------------------ */ /* API for Multiplexer/DeMultiplexer Switches */ @@ -1280,12 +1453,24 @@ int typec_set_orientation(struct typec_port *port, EXPORT_SYMBOL_GPL(typec_set_orientation); /** + * typec_get_orientation - Get USB Type-C cable plug orientation + * @port: USB Type-C Port + * + * Get current cable plug orientation for @port. + */ +enum typec_orientation typec_get_orientation(struct typec_port *port) +{ + return port->orientation; +} +EXPORT_SYMBOL_GPL(typec_get_orientation); + +/** * typec_set_mode - Set mode of operation for USB Type-C connector - * @port: USB Type-C port for the connector - * @mode: Operation mode for the connector + * @port: USB Type-C connector + * @mode: Accessory Mode, USB Operation or Safe State * - * Set mode @mode for @port. This function will configure the muxes needed to - * enter @mode. + * Configure @port for Accessory Mode @mode. This function will configure the + * muxes needed for @mode. */ int typec_set_mode(struct typec_port *port, int mode) { @@ -1299,6 +1484,7 @@ EXPORT_SYMBOL_GPL(typec_set_mode); * typec_port_register_altmode - Register USB Type-C Port Alternate Mode * @port: USB Type-C Port that supports the alternate mode * @desc: Description of the alternate mode + * @drvdata: Private pointer to driver specific info * * This routine is used to register an alternate mode that @port is capable of * supporting. @@ -1309,7 +1495,23 @@ struct typec_altmode * typec_port_register_altmode(struct typec_port *port, const struct typec_altmode_desc *desc) { - return typec_register_altmode(&port->dev, desc); + struct typec_altmode *adev; + struct typec_mux *mux; + char id[10]; + + sprintf(id, "id%04xm%02x", desc->svid, desc->mode); + + mux = typec_mux_get(port->dev.parent, id); + if (IS_ERR(mux)) + return ERR_CAST(mux); + + adev = typec_register_altmode(&port->dev, desc); + if (IS_ERR(adev)) + typec_mux_put(mux); + else + to_altmode(adev)->mux = mux; + + return adev; } EXPORT_SYMBOL_GPL(typec_port_register_altmode); @@ -1345,7 +1547,7 @@ struct typec_port *typec_register_port(struct device *parent, goto err_switch; } - port->mux = typec_mux_get(cap->fwnode ? &port->dev : parent); + port->mux = typec_mux_get(parent, "typec-mux"); if (IS_ERR(port->mux)) { ret = PTR_ERR(port->mux); goto err_mux; @@ -1383,10 +1585,12 @@ struct typec_port *typec_register_port(struct device *parent, break; } + ida_init(&port->mode_ids); + mutex_init(&port->port_type_lock); + port->id = id; port->cap = cap; port->port_type = cap->type; - mutex_init(&port->port_type_lock); port->prefer_role = cap->prefer_role; port->dev.class = typec_class; @@ -1430,8 +1634,19 @@ EXPORT_SYMBOL_GPL(typec_unregister_port); static int __init typec_init(void) { + int ret; + + ret = bus_register(&typec_bus); + if (ret) + return ret; + typec_class = class_create(THIS_MODULE, "typec"); - return PTR_ERR_OR_ZERO(typec_class); + if (IS_ERR(typec_class)) { + bus_unregister(&typec_bus); + return PTR_ERR(typec_class); + } + + return 0; } subsys_initcall(typec_init); @@ -1439,6 +1654,7 @@ static void __exit typec_exit(void) { class_destroy(typec_class); ida_destroy(&typec_index_ida); + bus_unregister(&typec_bus); } module_exit(typec_exit); diff --git a/drivers/usb/typec/fusb302/fusb302.c b/drivers/usb/typec/fusb302/fusb302.c index 1e68da10bf17..82bed9810be6 100644 --- a/drivers/usb/typec/fusb302/fusb302.c +++ b/drivers/usb/typec/fusb302/fusb302.c @@ -864,17 +864,6 @@ done: return ret; } -static int tcpm_set_current_limit(struct tcpc_dev *dev, u32 max_ma, u32 mv) -{ - struct fusb302_chip *chip = container_of(dev, struct fusb302_chip, - tcpc_dev); - - fusb302_log(chip, "current limit: %d ma, %d mv (not implemented)", - max_ma, mv); - - return 0; -} - static int fusb302_pd_tx_flush(struct fusb302_chip *chip) { return fusb302_i2c_set_bits(chip, FUSB_REG_CONTROL0, @@ -1213,7 +1202,6 @@ static void init_tcpc_dev(struct tcpc_dev *fusb302_tcpc_dev) fusb302_tcpc_dev->set_polarity = tcpm_set_polarity; fusb302_tcpc_dev->set_vconn = tcpm_set_vconn; fusb302_tcpc_dev->set_vbus = tcpm_set_vbus; - fusb302_tcpc_dev->set_current_limit = tcpm_set_current_limit; fusb302_tcpc_dev->set_pd_rx = tcpm_set_pd_rx; fusb302_tcpc_dev->set_roles = tcpm_set_roles; fusb302_tcpc_dev->start_drp_toggling = tcpm_start_drp_toggling; diff --git a/drivers/usb/typec/mux.c b/drivers/usb/typec/mux.c index 9d8330e9c431..ddaac63ecf12 100644 --- a/drivers/usb/typec/mux.c +++ b/drivers/usb/typec/mux.c @@ -123,19 +123,19 @@ static void *typec_mux_match(struct device_connection *con, int ep, void *data) /** * typec_mux_get - Find USB Type-C Multiplexer * @dev: The caller device + * @name: Mux identifier * * Finds a mux linked to the caller. This function is primarily meant for the * Type-C drivers. Returns a reference to the mux on success, NULL if no * matching connection was found, or ERR_PTR(-EPROBE_DEFER) when a connection * was found but the mux has not been enumerated yet. */ -struct typec_mux *typec_mux_get(struct device *dev) +struct typec_mux *typec_mux_get(struct device *dev, const char *name) { struct typec_mux *mux; mutex_lock(&mux_lock); - mux = device_connection_find_match(dev, "typec-mux", NULL, - typec_mux_match); + mux = device_connection_find_match(dev, name, NULL, typec_mux_match); if (!IS_ERR_OR_NULL(mux)) get_device(mux->dev); mutex_unlock(&mux_lock); diff --git a/drivers/usb/typec/mux/pi3usb30532.c b/drivers/usb/typec/mux/pi3usb30532.c index b0e88db60ecf..64eb5983e17a 100644 --- a/drivers/usb/typec/mux/pi3usb30532.c +++ b/drivers/usb/typec/mux/pi3usb30532.c @@ -9,7 +9,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/mutex.h> -#include <linux/usb/tcpm.h> +#include <linux/usb/typec_dp.h> #include <linux/usb/typec_mux.h> #define PI3USB30532_CONF 0x00 @@ -83,21 +83,24 @@ static int pi3usb30532_mux_set(struct typec_mux *mux, int state) new_conf = pi->conf; switch (state) { - case TYPEC_MUX_NONE: + case TYPEC_STATE_SAFE: new_conf = PI3USB30532_CONF_OPEN; break; - case TYPEC_MUX_USB: + case TYPEC_STATE_USB: new_conf = (new_conf & PI3USB30532_CONF_SWAP) | PI3USB30532_CONF_USB3; break; - case TYPEC_MUX_DP: + case TYPEC_DP_STATE_C: + case TYPEC_DP_STATE_E: new_conf = (new_conf & PI3USB30532_CONF_SWAP) | PI3USB30532_CONF_4LANE_DP; break; - case TYPEC_MUX_DOCK: + case TYPEC_DP_STATE_D: new_conf = (new_conf & PI3USB30532_CONF_SWAP) | PI3USB30532_CONF_USB3_AND_2LANE_DP; break; + default: + break; } ret = pi3usb30532_set_conf(pi, new_conf); diff --git a/drivers/usb/typec/tcpci.c b/drivers/usb/typec/tcpci.c new file mode 100644 index 000000000000..ac6b418b15f1 --- /dev/null +++ b/drivers/usb/typec/tcpci.c @@ -0,0 +1,612 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2015-2017 Google, Inc + * + * USB Type-C Port Controller Interface. + */ + +#include <linux/delay.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/interrupt.h> +#include <linux/property.h> +#include <linux/regmap.h> +#include <linux/usb/pd.h> +#include <linux/usb/tcpm.h> +#include <linux/usb/typec.h> + +#include "tcpci.h" + +#define PD_RETRY_COUNT 3 + +struct tcpci { + struct device *dev; + + struct tcpm_port *port; + + struct regmap *regmap; + + bool controls_vbus; + + struct tcpc_dev tcpc; + struct tcpci_data *data; +}; + +struct tcpci_chip { + struct tcpci *tcpci; + struct tcpci_data data; +}; + +static inline struct tcpci *tcpc_to_tcpci(struct tcpc_dev *tcpc) +{ + return container_of(tcpc, struct tcpci, tcpc); +} + +static int tcpci_read16(struct tcpci *tcpci, unsigned int reg, u16 *val) +{ + return regmap_raw_read(tcpci->regmap, reg, val, sizeof(u16)); +} + +static int tcpci_write16(struct tcpci *tcpci, unsigned int reg, u16 val) +{ + return regmap_raw_write(tcpci->regmap, reg, &val, sizeof(u16)); +} + +static int tcpci_set_cc(struct tcpc_dev *tcpc, enum typec_cc_status cc) +{ + struct tcpci *tcpci = tcpc_to_tcpci(tcpc); + unsigned int reg; + int ret; + + switch (cc) { + case TYPEC_CC_RA: + reg = (TCPC_ROLE_CTRL_CC_RA << TCPC_ROLE_CTRL_CC1_SHIFT) | + (TCPC_ROLE_CTRL_CC_RA << TCPC_ROLE_CTRL_CC2_SHIFT); + break; + case TYPEC_CC_RD: + reg = (TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_CC1_SHIFT) | + (TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_CC2_SHIFT); + break; + case TYPEC_CC_RP_DEF: + reg = (TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC1_SHIFT) | + (TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC2_SHIFT) | + (TCPC_ROLE_CTRL_RP_VAL_DEF << + TCPC_ROLE_CTRL_RP_VAL_SHIFT); + break; + case TYPEC_CC_RP_1_5: + reg = (TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC1_SHIFT) | + (TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC2_SHIFT) | + (TCPC_ROLE_CTRL_RP_VAL_1_5 << + TCPC_ROLE_CTRL_RP_VAL_SHIFT); + break; + case TYPEC_CC_RP_3_0: + reg = (TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC1_SHIFT) | + (TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC2_SHIFT) | + (TCPC_ROLE_CTRL_RP_VAL_3_0 << + TCPC_ROLE_CTRL_RP_VAL_SHIFT); + break; + case TYPEC_CC_OPEN: + default: + reg = (TCPC_ROLE_CTRL_CC_OPEN << TCPC_ROLE_CTRL_CC1_SHIFT) | + (TCPC_ROLE_CTRL_CC_OPEN << TCPC_ROLE_CTRL_CC2_SHIFT); + break; + } + + ret = regmap_write(tcpci->regmap, TCPC_ROLE_CTRL, reg); + if (ret < 0) + return ret; + + return 0; +} + +static int tcpci_start_drp_toggling(struct tcpc_dev *tcpc, + enum typec_cc_status cc) +{ + int ret; + struct tcpci *tcpci = tcpc_to_tcpci(tcpc); + unsigned int reg = TCPC_ROLE_CTRL_DRP; + + /* Handle vendor drp toggling */ + if (tcpci->data->start_drp_toggling) { + ret = tcpci->data->start_drp_toggling(tcpci, tcpci->data, cc); + if (ret < 0) + return ret; + } + + switch (cc) { + default: + case TYPEC_CC_RP_DEF: + reg |= (TCPC_ROLE_CTRL_RP_VAL_DEF << + TCPC_ROLE_CTRL_RP_VAL_SHIFT); + break; + case TYPEC_CC_RP_1_5: + reg |= (TCPC_ROLE_CTRL_RP_VAL_1_5 << + TCPC_ROLE_CTRL_RP_VAL_SHIFT); + break; + case TYPEC_CC_RP_3_0: + reg |= (TCPC_ROLE_CTRL_RP_VAL_3_0 << + TCPC_ROLE_CTRL_RP_VAL_SHIFT); + break; + } + + if (cc == TYPEC_CC_RD) + reg |= (TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_CC1_SHIFT) | + (TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_CC2_SHIFT); + else + reg |= (TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC1_SHIFT) | + (TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC2_SHIFT); + ret = regmap_write(tcpci->regmap, TCPC_ROLE_CTRL, reg); + if (ret < 0) + return ret; + return regmap_write(tcpci->regmap, TCPC_COMMAND, + TCPC_CMD_LOOK4CONNECTION); +} + +static enum typec_cc_status tcpci_to_typec_cc(unsigned int cc, bool sink) +{ + switch (cc) { + case 0x1: + return sink ? TYPEC_CC_RP_DEF : TYPEC_CC_RA; + case 0x2: + return sink ? TYPEC_CC_RP_1_5 : TYPEC_CC_RD; + case 0x3: + if (sink) + return TYPEC_CC_RP_3_0; + /* fall through */ + case 0x0: + default: + return TYPEC_CC_OPEN; + } +} + +static int tcpci_get_cc(struct tcpc_dev *tcpc, + enum typec_cc_status *cc1, enum typec_cc_status *cc2) +{ + struct tcpci *tcpci = tcpc_to_tcpci(tcpc); + unsigned int reg; + int ret; + + ret = regmap_read(tcpci->regmap, TCPC_CC_STATUS, ®); + if (ret < 0) + return ret; + + *cc1 = tcpci_to_typec_cc((reg >> TCPC_CC_STATUS_CC1_SHIFT) & + TCPC_CC_STATUS_CC1_MASK, + reg & TCPC_CC_STATUS_TERM); + *cc2 = tcpci_to_typec_cc((reg >> TCPC_CC_STATUS_CC2_SHIFT) & + TCPC_CC_STATUS_CC2_MASK, + reg & TCPC_CC_STATUS_TERM); + + return 0; +} + +static int tcpci_set_polarity(struct tcpc_dev *tcpc, + enum typec_cc_polarity polarity) +{ + struct tcpci *tcpci = tcpc_to_tcpci(tcpc); + unsigned int reg; + int ret; + + /* Keep the disconnect cc line open */ + ret = regmap_read(tcpci->regmap, TCPC_ROLE_CTRL, ®); + if (ret < 0) + return ret; + + if (polarity == TYPEC_POLARITY_CC2) + reg |= TCPC_ROLE_CTRL_CC_OPEN << TCPC_ROLE_CTRL_CC1_SHIFT; + else + reg |= TCPC_ROLE_CTRL_CC_OPEN << TCPC_ROLE_CTRL_CC2_SHIFT; + ret = regmap_write(tcpci->regmap, TCPC_ROLE_CTRL, reg); + if (ret < 0) + return ret; + + return regmap_write(tcpci->regmap, TCPC_TCPC_CTRL, + (polarity == TYPEC_POLARITY_CC2) ? + TCPC_TCPC_CTRL_ORIENTATION : 0); +} + +static int tcpci_set_vconn(struct tcpc_dev *tcpc, bool enable) +{ + struct tcpci *tcpci = tcpc_to_tcpci(tcpc); + int ret; + + /* Handle vendor set vconn */ + if (tcpci->data->set_vconn) { + ret = tcpci->data->set_vconn(tcpci, tcpci->data, enable); + if (ret < 0) + return ret; + } + + return regmap_update_bits(tcpci->regmap, TCPC_POWER_CTRL, + TCPC_POWER_CTRL_VCONN_ENABLE, + enable ? TCPC_POWER_CTRL_VCONN_ENABLE : 0); +} + +static int tcpci_set_roles(struct tcpc_dev *tcpc, bool attached, + enum typec_role role, enum typec_data_role data) +{ + struct tcpci *tcpci = tcpc_to_tcpci(tcpc); + unsigned int reg; + int ret; + + reg = PD_REV20 << TCPC_MSG_HDR_INFO_REV_SHIFT; + if (role == TYPEC_SOURCE) + reg |= TCPC_MSG_HDR_INFO_PWR_ROLE; + if (data == TYPEC_HOST) + reg |= TCPC_MSG_HDR_INFO_DATA_ROLE; + ret = regmap_write(tcpci->regmap, TCPC_MSG_HDR_INFO, reg); + if (ret < 0) + return ret; + + return 0; +} + +static int tcpci_set_pd_rx(struct tcpc_dev *tcpc, bool enable) +{ + struct tcpci *tcpci = tcpc_to_tcpci(tcpc); + unsigned int reg = 0; + int ret; + + if (enable) + reg = TCPC_RX_DETECT_SOP | TCPC_RX_DETECT_HARD_RESET; + ret = regmap_write(tcpci->regmap, TCPC_RX_DETECT, reg); + if (ret < 0) + return ret; + + return 0; +} + +static int tcpci_get_vbus(struct tcpc_dev *tcpc) +{ + struct tcpci *tcpci = tcpc_to_tcpci(tcpc); + unsigned int reg; + int ret; + + ret = regmap_read(tcpci->regmap, TCPC_POWER_STATUS, ®); + if (ret < 0) + return ret; + + return !!(reg & TCPC_POWER_STATUS_VBUS_PRES); +} + +static int tcpci_set_vbus(struct tcpc_dev *tcpc, bool source, bool sink) +{ + struct tcpci *tcpci = tcpc_to_tcpci(tcpc); + int ret; + + /* Disable both source and sink first before enabling anything */ + + if (!source) { + ret = regmap_write(tcpci->regmap, TCPC_COMMAND, + TCPC_CMD_DISABLE_SRC_VBUS); + if (ret < 0) + return ret; + } + + if (!sink) { + ret = regmap_write(tcpci->regmap, TCPC_COMMAND, + TCPC_CMD_DISABLE_SINK_VBUS); + if (ret < 0) + return ret; + } + + if (source) { + ret = regmap_write(tcpci->regmap, TCPC_COMMAND, + TCPC_CMD_SRC_VBUS_DEFAULT); + if (ret < 0) + return ret; + } + + if (sink) { + ret = regmap_write(tcpci->regmap, TCPC_COMMAND, + TCPC_CMD_SINK_VBUS); + if (ret < 0) + return ret; + } + + return 0; +} + +static int tcpci_pd_transmit(struct tcpc_dev *tcpc, + enum tcpm_transmit_type type, + const struct pd_message *msg) +{ + struct tcpci *tcpci = tcpc_to_tcpci(tcpc); + u16 header = msg ? le16_to_cpu(msg->header) : 0; + unsigned int reg, cnt; + int ret; + + cnt = msg ? pd_header_cnt(header) * 4 : 0; + ret = regmap_write(tcpci->regmap, TCPC_TX_BYTE_CNT, cnt + 2); + if (ret < 0) + return ret; + + ret = tcpci_write16(tcpci, TCPC_TX_HDR, header); + if (ret < 0) + return ret; + + if (cnt > 0) { + ret = regmap_raw_write(tcpci->regmap, TCPC_TX_DATA, + &msg->payload, cnt); + if (ret < 0) + return ret; + } + + reg = (PD_RETRY_COUNT << TCPC_TRANSMIT_RETRY_SHIFT) | + (type << TCPC_TRANSMIT_TYPE_SHIFT); + ret = regmap_write(tcpci->regmap, TCPC_TRANSMIT, reg); + if (ret < 0) + return ret; + + return 0; +} + +static int tcpci_init(struct tcpc_dev *tcpc) +{ + struct tcpci *tcpci = tcpc_to_tcpci(tcpc); + unsigned long timeout = jiffies + msecs_to_jiffies(2000); /* XXX */ + unsigned int reg; + int ret; + + while (time_before_eq(jiffies, timeout)) { + ret = regmap_read(tcpci->regmap, TCPC_POWER_STATUS, ®); + if (ret < 0) + return ret; + if (!(reg & TCPC_POWER_STATUS_UNINIT)) + break; + usleep_range(10000, 20000); + } + if (time_after(jiffies, timeout)) + return -ETIMEDOUT; + + /* Handle vendor init */ + if (tcpci->data->init) { + ret = tcpci->data->init(tcpci, tcpci->data); + if (ret < 0) + return ret; + } + + /* Clear all events */ + ret = tcpci_write16(tcpci, TCPC_ALERT, 0xffff); + if (ret < 0) + return ret; + + if (tcpci->controls_vbus) + reg = TCPC_POWER_STATUS_VBUS_PRES; + else + reg = 0; + ret = regmap_write(tcpci->regmap, TCPC_POWER_STATUS_MASK, reg); + if (ret < 0) + return ret; + + /* Enable Vbus detection */ + ret = regmap_write(tcpci->regmap, TCPC_COMMAND, + TCPC_CMD_ENABLE_VBUS_DETECT); + if (ret < 0) + return ret; + + reg = TCPC_ALERT_TX_SUCCESS | TCPC_ALERT_TX_FAILED | + TCPC_ALERT_TX_DISCARDED | TCPC_ALERT_RX_STATUS | + TCPC_ALERT_RX_HARD_RST | TCPC_ALERT_CC_STATUS; + if (tcpci->controls_vbus) + reg |= TCPC_ALERT_POWER_STATUS; + return tcpci_write16(tcpci, TCPC_ALERT_MASK, reg); +} + +irqreturn_t tcpci_irq(struct tcpci *tcpci) +{ + u16 status; + + tcpci_read16(tcpci, TCPC_ALERT, &status); + + /* + * Clear alert status for everything except RX_STATUS, which shouldn't + * be cleared until we have successfully retrieved message. + */ + if (status & ~TCPC_ALERT_RX_STATUS) + tcpci_write16(tcpci, TCPC_ALERT, + status & ~TCPC_ALERT_RX_STATUS); + + if (status & TCPC_ALERT_CC_STATUS) + tcpm_cc_change(tcpci->port); + + if (status & TCPC_ALERT_POWER_STATUS) { + unsigned int reg; + + regmap_read(tcpci->regmap, TCPC_POWER_STATUS_MASK, ®); + + /* + * If power status mask has been reset, then the TCPC + * has reset. + */ + if (reg == 0xff) + tcpm_tcpc_reset(tcpci->port); + else + tcpm_vbus_change(tcpci->port); + } + + if (status & TCPC_ALERT_RX_STATUS) { + struct pd_message msg; + unsigned int cnt; + u16 header; + + regmap_read(tcpci->regmap, TCPC_RX_BYTE_CNT, &cnt); + + tcpci_read16(tcpci, TCPC_RX_HDR, &header); + msg.header = cpu_to_le16(header); + + if (WARN_ON(cnt > sizeof(msg.payload))) + cnt = sizeof(msg.payload); + + if (cnt > 0) + regmap_raw_read(tcpci->regmap, TCPC_RX_DATA, + &msg.payload, cnt); + + /* Read complete, clear RX status alert bit */ + tcpci_write16(tcpci, TCPC_ALERT, TCPC_ALERT_RX_STATUS); + + tcpm_pd_receive(tcpci->port, &msg); + } + + if (status & TCPC_ALERT_RX_HARD_RST) + tcpm_pd_hard_reset(tcpci->port); + + if (status & TCPC_ALERT_TX_SUCCESS) + tcpm_pd_transmit_complete(tcpci->port, TCPC_TX_SUCCESS); + else if (status & TCPC_ALERT_TX_DISCARDED) + tcpm_pd_transmit_complete(tcpci->port, TCPC_TX_DISCARDED); + else if (status & TCPC_ALERT_TX_FAILED) + tcpm_pd_transmit_complete(tcpci->port, TCPC_TX_FAILED); + + return IRQ_HANDLED; +} +EXPORT_SYMBOL_GPL(tcpci_irq); + +static irqreturn_t _tcpci_irq(int irq, void *dev_id) +{ + struct tcpci_chip *chip = dev_id; + + return tcpci_irq(chip->tcpci); +} + +static const struct regmap_config tcpci_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = 0x7F, /* 0x80 .. 0xFF are vendor defined */ +}; + +static int tcpci_parse_config(struct tcpci *tcpci) +{ + tcpci->controls_vbus = true; /* XXX */ + + tcpci->tcpc.fwnode = device_get_named_child_node(tcpci->dev, + "connector"); + if (!tcpci->tcpc.fwnode) { + dev_err(tcpci->dev, "Can't find connector node.\n"); + return -EINVAL; + } + + return 0; +} + +struct tcpci *tcpci_register_port(struct device *dev, struct tcpci_data *data) +{ + struct tcpci *tcpci; + int err; + + tcpci = devm_kzalloc(dev, sizeof(*tcpci), GFP_KERNEL); + if (!tcpci) + return ERR_PTR(-ENOMEM); + + tcpci->dev = dev; + tcpci->data = data; + tcpci->regmap = data->regmap; + + tcpci->tcpc.init = tcpci_init; + tcpci->tcpc.get_vbus = tcpci_get_vbus; + tcpci->tcpc.set_vbus = tcpci_set_vbus; + tcpci->tcpc.set_cc = tcpci_set_cc; + tcpci->tcpc.get_cc = tcpci_get_cc; + tcpci->tcpc.set_polarity = tcpci_set_polarity; + tcpci->tcpc.set_vconn = tcpci_set_vconn; + tcpci->tcpc.start_drp_toggling = tcpci_start_drp_toggling; + + tcpci->tcpc.set_pd_rx = tcpci_set_pd_rx; + tcpci->tcpc.set_roles = tcpci_set_roles; + tcpci->tcpc.pd_transmit = tcpci_pd_transmit; + + err = tcpci_parse_config(tcpci); + if (err < 0) + return ERR_PTR(err); + + tcpci->port = tcpm_register_port(tcpci->dev, &tcpci->tcpc); + if (IS_ERR(tcpci->port)) + return ERR_CAST(tcpci->port); + + return tcpci; +} +EXPORT_SYMBOL_GPL(tcpci_register_port); + +void tcpci_unregister_port(struct tcpci *tcpci) +{ + tcpm_unregister_port(tcpci->port); +} +EXPORT_SYMBOL_GPL(tcpci_unregister_port); + +static int tcpci_probe(struct i2c_client *client, + const struct i2c_device_id *i2c_id) +{ + struct tcpci_chip *chip; + int err; + u16 val = 0; + + chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL); + if (!chip) + return -ENOMEM; + + chip->data.regmap = devm_regmap_init_i2c(client, &tcpci_regmap_config); + if (IS_ERR(chip->data.regmap)) + return PTR_ERR(chip->data.regmap); + + i2c_set_clientdata(client, chip); + + /* Disable chip interrupts before requesting irq */ + err = regmap_raw_write(chip->data.regmap, TCPC_ALERT_MASK, &val, + sizeof(u16)); + if (err < 0) + return err; + + chip->tcpci = tcpci_register_port(&client->dev, &chip->data); + if (IS_ERR(chip->tcpci)) + return PTR_ERR(chip->tcpci); + + err = devm_request_threaded_irq(&client->dev, client->irq, NULL, + _tcpci_irq, + IRQF_ONESHOT | IRQF_TRIGGER_LOW, + dev_name(&client->dev), chip); + if (err < 0) { + tcpci_unregister_port(chip->tcpci); + return err; + } + + return 0; +} + +static int tcpci_remove(struct i2c_client *client) +{ + struct tcpci_chip *chip = i2c_get_clientdata(client); + + tcpci_unregister_port(chip->tcpci); + + return 0; +} + +static const struct i2c_device_id tcpci_id[] = { + { "tcpci", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, tcpci_id); + +#ifdef CONFIG_OF +static const struct of_device_id tcpci_of_match[] = { + { .compatible = "nxp,ptn5110", }, + {}, +}; +MODULE_DEVICE_TABLE(of, tcpci_of_match); +#endif + +static struct i2c_driver tcpci_i2c_driver = { + .driver = { + .name = "tcpci", + .of_match_table = of_match_ptr(tcpci_of_match), + }, + .probe = tcpci_probe, + .remove = tcpci_remove, + .id_table = tcpci_id, +}; +module_i2c_driver(tcpci_i2c_driver); + +MODULE_DESCRIPTION("USB Type-C Port Controller Interface driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/typec/tcpci.h b/drivers/usb/typec/tcpci.h new file mode 100644 index 000000000000..303ebde26546 --- /dev/null +++ b/drivers/usb/typec/tcpci.h @@ -0,0 +1,139 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright 2015-2017 Google, Inc + * + * USB Type-C Port Controller Interface. + */ + +#ifndef __LINUX_USB_TCPCI_H +#define __LINUX_USB_TCPCI_H + +#define TCPC_VENDOR_ID 0x0 +#define TCPC_PRODUCT_ID 0x2 +#define TCPC_BCD_DEV 0x4 +#define TCPC_TC_REV 0x6 +#define TCPC_PD_REV 0x8 +#define TCPC_PD_INT_REV 0xa + +#define TCPC_ALERT 0x10 +#define TCPC_ALERT_VBUS_DISCNCT BIT(11) +#define TCPC_ALERT_RX_BUF_OVF BIT(10) +#define TCPC_ALERT_FAULT BIT(9) +#define TCPC_ALERT_V_ALARM_LO BIT(8) +#define TCPC_ALERT_V_ALARM_HI BIT(7) +#define TCPC_ALERT_TX_SUCCESS BIT(6) +#define TCPC_ALERT_TX_DISCARDED BIT(5) +#define TCPC_ALERT_TX_FAILED BIT(4) +#define TCPC_ALERT_RX_HARD_RST BIT(3) +#define TCPC_ALERT_RX_STATUS BIT(2) +#define TCPC_ALERT_POWER_STATUS BIT(1) +#define TCPC_ALERT_CC_STATUS BIT(0) + +#define TCPC_ALERT_MASK 0x12 +#define TCPC_POWER_STATUS_MASK 0x14 +#define TCPC_FAULT_STATUS_MASK 0x15 +#define TCPC_CONFIG_STD_OUTPUT 0x18 + +#define TCPC_TCPC_CTRL 0x19 +#define TCPC_TCPC_CTRL_ORIENTATION BIT(0) + +#define TCPC_ROLE_CTRL 0x1a +#define TCPC_ROLE_CTRL_DRP BIT(6) +#define TCPC_ROLE_CTRL_RP_VAL_SHIFT 4 +#define TCPC_ROLE_CTRL_RP_VAL_MASK 0x3 +#define TCPC_ROLE_CTRL_RP_VAL_DEF 0x0 +#define TCPC_ROLE_CTRL_RP_VAL_1_5 0x1 +#define TCPC_ROLE_CTRL_RP_VAL_3_0 0x2 +#define TCPC_ROLE_CTRL_CC2_SHIFT 2 +#define TCPC_ROLE_CTRL_CC2_MASK 0x3 +#define TCPC_ROLE_CTRL_CC1_SHIFT 0 +#define TCPC_ROLE_CTRL_CC1_MASK 0x3 +#define TCPC_ROLE_CTRL_CC_RA 0x0 +#define TCPC_ROLE_CTRL_CC_RP 0x1 +#define TCPC_ROLE_CTRL_CC_RD 0x2 +#define TCPC_ROLE_CTRL_CC_OPEN 0x3 + +#define TCPC_FAULT_CTRL 0x1b + +#define TCPC_POWER_CTRL 0x1c +#define TCPC_POWER_CTRL_VCONN_ENABLE BIT(0) + +#define TCPC_CC_STATUS 0x1d +#define TCPC_CC_STATUS_TOGGLING BIT(5) +#define TCPC_CC_STATUS_TERM BIT(4) +#define TCPC_CC_STATUS_CC2_SHIFT 2 +#define TCPC_CC_STATUS_CC2_MASK 0x3 +#define TCPC_CC_STATUS_CC1_SHIFT 0 +#define TCPC_CC_STATUS_CC1_MASK 0x3 + +#define TCPC_POWER_STATUS 0x1e +#define TCPC_POWER_STATUS_UNINIT BIT(6) +#define TCPC_POWER_STATUS_VBUS_DET BIT(3) +#define TCPC_POWER_STATUS_VBUS_PRES BIT(2) + +#define TCPC_FAULT_STATUS 0x1f + +#define TCPC_COMMAND 0x23 +#define TCPC_CMD_WAKE_I2C 0x11 +#define TCPC_CMD_DISABLE_VBUS_DETECT 0x22 +#define TCPC_CMD_ENABLE_VBUS_DETECT 0x33 +#define TCPC_CMD_DISABLE_SINK_VBUS 0x44 +#define TCPC_CMD_SINK_VBUS 0x55 +#define TCPC_CMD_DISABLE_SRC_VBUS 0x66 +#define TCPC_CMD_SRC_VBUS_DEFAULT 0x77 +#define TCPC_CMD_SRC_VBUS_HIGH 0x88 +#define TCPC_CMD_LOOK4CONNECTION 0x99 +#define TCPC_CMD_RXONEMORE 0xAA +#define TCPC_CMD_I2C_IDLE 0xFF + +#define TCPC_DEV_CAP_1 0x24 +#define TCPC_DEV_CAP_2 0x26 +#define TCPC_STD_INPUT_CAP 0x28 +#define TCPC_STD_OUTPUT_CAP 0x29 + +#define TCPC_MSG_HDR_INFO 0x2e +#define TCPC_MSG_HDR_INFO_DATA_ROLE BIT(3) +#define TCPC_MSG_HDR_INFO_PWR_ROLE BIT(0) +#define TCPC_MSG_HDR_INFO_REV_SHIFT 1 +#define TCPC_MSG_HDR_INFO_REV_MASK 0x3 + +#define TCPC_RX_DETECT 0x2f +#define TCPC_RX_DETECT_HARD_RESET BIT(5) +#define TCPC_RX_DETECT_SOP BIT(0) + +#define TCPC_RX_BYTE_CNT 0x30 +#define TCPC_RX_BUF_FRAME_TYPE 0x31 +#define TCPC_RX_HDR 0x32 +#define TCPC_RX_DATA 0x34 /* through 0x4f */ + +#define TCPC_TRANSMIT 0x50 +#define TCPC_TRANSMIT_RETRY_SHIFT 4 +#define TCPC_TRANSMIT_RETRY_MASK 0x3 +#define TCPC_TRANSMIT_TYPE_SHIFT 0 +#define TCPC_TRANSMIT_TYPE_MASK 0x7 + +#define TCPC_TX_BYTE_CNT 0x51 +#define TCPC_TX_HDR 0x52 +#define TCPC_TX_DATA 0x54 /* through 0x6f */ + +#define TCPC_VBUS_VOLTAGE 0x70 +#define TCPC_VBUS_SINK_DISCONNECT_THRESH 0x72 +#define TCPC_VBUS_STOP_DISCHARGE_THRESH 0x74 +#define TCPC_VBUS_VOLTAGE_ALARM_HI_CFG 0x76 +#define TCPC_VBUS_VOLTAGE_ALARM_LO_CFG 0x78 + +struct tcpci; +struct tcpci_data { + struct regmap *regmap; + int (*init)(struct tcpci *tcpci, struct tcpci_data *data); + int (*set_vconn)(struct tcpci *tcpci, struct tcpci_data *data, + bool enable); + int (*start_drp_toggling)(struct tcpci *tcpci, struct tcpci_data *data, + enum typec_cc_status cc); +}; + +struct tcpci *tcpci_register_port(struct device *dev, struct tcpci_data *data); +void tcpci_unregister_port(struct tcpci *tcpci); +irqreturn_t tcpci_irq(struct tcpci *tcpci); + +#endif /* __LINUX_USB_TCPCI_H */ diff --git a/drivers/usb/typec/tcpci_rt1711h.c b/drivers/usb/typec/tcpci_rt1711h.c new file mode 100644 index 000000000000..017389021b96 --- /dev/null +++ b/drivers/usb/typec/tcpci_rt1711h.c @@ -0,0 +1,312 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2018, Richtek Technology Corporation + * + * Richtek RT1711H Type-C Chip Driver + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/interrupt.h> +#include <linux/gpio/consumer.h> +#include <linux/usb/tcpm.h> +#include <linux/regmap.h> +#include "tcpci.h" + +#define RT1711H_VID 0x29CF +#define RT1711H_PID 0x1711 + +#define RT1711H_RTCTRL8 0x9B + +/* Autoidle timeout = (tout * 2 + 1) * 6.4ms */ +#define RT1711H_RTCTRL8_SET(ck300, ship_off, auto_idle, tout) \ + (((ck300) << 7) | ((ship_off) << 5) | \ + ((auto_idle) << 3) | ((tout) & 0x07)) + +#define RT1711H_RTCTRL11 0x9E + +/* I2C timeout = (tout + 1) * 12.5ms */ +#define RT1711H_RTCTRL11_SET(en, tout) \ + (((en) << 7) | ((tout) & 0x0F)) + +#define RT1711H_RTCTRL13 0xA0 +#define RT1711H_RTCTRL14 0xA1 +#define RT1711H_RTCTRL15 0xA2 +#define RT1711H_RTCTRL16 0xA3 + +struct rt1711h_chip { + struct tcpci_data data; + struct tcpci *tcpci; + struct device *dev; +}; + +static int rt1711h_read16(struct rt1711h_chip *chip, unsigned int reg, u16 *val) +{ + return regmap_raw_read(chip->data.regmap, reg, val, sizeof(u16)); +} + +static int rt1711h_write16(struct rt1711h_chip *chip, unsigned int reg, u16 val) +{ + return regmap_raw_write(chip->data.regmap, reg, &val, sizeof(u16)); +} + +static int rt1711h_read8(struct rt1711h_chip *chip, unsigned int reg, u8 *val) +{ + return regmap_raw_read(chip->data.regmap, reg, val, sizeof(u8)); +} + +static int rt1711h_write8(struct rt1711h_chip *chip, unsigned int reg, u8 val) +{ + return regmap_raw_write(chip->data.regmap, reg, &val, sizeof(u8)); +} + +static const struct regmap_config rt1711h_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = 0xFF, /* 0x80 .. 0xFF are vendor defined */ +}; + +static struct rt1711h_chip *tdata_to_rt1711h(struct tcpci_data *tdata) +{ + return container_of(tdata, struct rt1711h_chip, data); +} + +static int rt1711h_init(struct tcpci *tcpci, struct tcpci_data *tdata) +{ + int ret; + struct rt1711h_chip *chip = tdata_to_rt1711h(tdata); + + /* CK 300K from 320K, shipping off, auto_idle enable, tout = 32ms */ + ret = rt1711h_write8(chip, RT1711H_RTCTRL8, + RT1711H_RTCTRL8_SET(0, 1, 1, 2)); + if (ret < 0) + return ret; + + /* I2C reset : (val + 1) * 12.5ms */ + ret = rt1711h_write8(chip, RT1711H_RTCTRL11, + RT1711H_RTCTRL11_SET(1, 0x0F)); + if (ret < 0) + return ret; + + /* tTCPCfilter : (26.7 * val) us */ + ret = rt1711h_write8(chip, RT1711H_RTCTRL14, 0x0F); + if (ret < 0) + return ret; + + /* tDRP : (51.2 + 6.4 * val) ms */ + ret = rt1711h_write8(chip, RT1711H_RTCTRL15, 0x04); + if (ret < 0) + return ret; + + /* dcSRC.DRP : 33% */ + return rt1711h_write16(chip, RT1711H_RTCTRL16, 330); +} + +static int rt1711h_set_vconn(struct tcpci *tcpci, struct tcpci_data *tdata, + bool enable) +{ + struct rt1711h_chip *chip = tdata_to_rt1711h(tdata); + + return rt1711h_write8(chip, RT1711H_RTCTRL8, + RT1711H_RTCTRL8_SET(0, 1, !enable, 2)); +} + +static int rt1711h_start_drp_toggling(struct tcpci *tcpci, + struct tcpci_data *tdata, + enum typec_cc_status cc) +{ + struct rt1711h_chip *chip = tdata_to_rt1711h(tdata); + int ret; + unsigned int reg = 0; + + switch (cc) { + default: + case TYPEC_CC_RP_DEF: + reg |= (TCPC_ROLE_CTRL_RP_VAL_DEF << + TCPC_ROLE_CTRL_RP_VAL_SHIFT); + break; + case TYPEC_CC_RP_1_5: + reg |= (TCPC_ROLE_CTRL_RP_VAL_1_5 << + TCPC_ROLE_CTRL_RP_VAL_SHIFT); + break; + case TYPEC_CC_RP_3_0: + reg |= (TCPC_ROLE_CTRL_RP_VAL_3_0 << + TCPC_ROLE_CTRL_RP_VAL_SHIFT); + break; + } + + if (cc == TYPEC_CC_RD) + reg |= (TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_CC1_SHIFT) | + (TCPC_ROLE_CTRL_CC_RD << TCPC_ROLE_CTRL_CC2_SHIFT); + else + reg |= (TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC1_SHIFT) | + (TCPC_ROLE_CTRL_CC_RP << TCPC_ROLE_CTRL_CC2_SHIFT); + + ret = rt1711h_write8(chip, TCPC_ROLE_CTRL, reg); + if (ret < 0) + return ret; + usleep_range(500, 1000); + + return 0; +} + +static irqreturn_t rt1711h_irq(int irq, void *dev_id) +{ + int ret; + u16 alert; + u8 status; + struct rt1711h_chip *chip = dev_id; + + if (!chip->tcpci) + return IRQ_HANDLED; + + ret = rt1711h_read16(chip, TCPC_ALERT, &alert); + if (ret < 0) + goto out; + + if (alert & TCPC_ALERT_CC_STATUS) { + ret = rt1711h_read8(chip, TCPC_CC_STATUS, &status); + if (ret < 0) + goto out; + /* Clear cc change event triggered by starting toggling */ + if (status & TCPC_CC_STATUS_TOGGLING) + rt1711h_write8(chip, TCPC_ALERT, TCPC_ALERT_CC_STATUS); + } + +out: + return tcpci_irq(chip->tcpci); +} + +static int rt1711h_init_alert(struct rt1711h_chip *chip, + struct i2c_client *client) +{ + int ret; + + /* Disable chip interrupts before requesting irq */ + ret = rt1711h_write16(chip, TCPC_ALERT_MASK, 0); + if (ret < 0) + return ret; + + ret = devm_request_threaded_irq(chip->dev, client->irq, NULL, + rt1711h_irq, + IRQF_ONESHOT | IRQF_TRIGGER_LOW, + dev_name(chip->dev), chip); + if (ret < 0) + return ret; + enable_irq_wake(client->irq); + return 0; +} + +static int rt1711h_sw_reset(struct rt1711h_chip *chip) +{ + int ret; + + ret = rt1711h_write8(chip, RT1711H_RTCTRL13, 0x01); + if (ret < 0) + return ret; + + usleep_range(1000, 2000); + return 0; +} + +static int rt1711h_check_revision(struct i2c_client *i2c) +{ + int ret; + + ret = i2c_smbus_read_word_data(i2c, TCPC_VENDOR_ID); + if (ret < 0) + return ret; + if (ret != RT1711H_VID) { + dev_err(&i2c->dev, "vid is not correct, 0x%04x\n", ret); + return -ENODEV; + } + ret = i2c_smbus_read_word_data(i2c, TCPC_PRODUCT_ID); + if (ret < 0) + return ret; + if (ret != RT1711H_PID) { + dev_err(&i2c->dev, "pid is not correct, 0x%04x\n", ret); + return -ENODEV; + } + return 0; +} + +static int rt1711h_probe(struct i2c_client *client, + const struct i2c_device_id *i2c_id) +{ + int ret; + struct rt1711h_chip *chip; + + ret = rt1711h_check_revision(client); + if (ret < 0) { + dev_err(&client->dev, "check vid/pid fail\n"); + return ret; + } + + chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL); + if (!chip) + return -ENOMEM; + + chip->data.regmap = devm_regmap_init_i2c(client, + &rt1711h_regmap_config); + if (IS_ERR(chip->data.regmap)) + return PTR_ERR(chip->data.regmap); + + chip->dev = &client->dev; + i2c_set_clientdata(client, chip); + + ret = rt1711h_sw_reset(chip); + if (ret < 0) + return ret; + + ret = rt1711h_init_alert(chip, client); + if (ret < 0) + return ret; + + chip->data.init = rt1711h_init; + chip->data.set_vconn = rt1711h_set_vconn; + chip->data.start_drp_toggling = rt1711h_start_drp_toggling; + chip->tcpci = tcpci_register_port(chip->dev, &chip->data); + if (IS_ERR_OR_NULL(chip->tcpci)) + return PTR_ERR(chip->tcpci); + + return 0; +} + +static int rt1711h_remove(struct i2c_client *client) +{ + struct rt1711h_chip *chip = i2c_get_clientdata(client); + + tcpci_unregister_port(chip->tcpci); + return 0; +} + +static const struct i2c_device_id rt1711h_id[] = { + { "rt1711h", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, rt1711h_id); + +#ifdef CONFIG_OF +static const struct of_device_id rt1711h_of_match[] = { + { .compatible = "richtek,rt1711h", }, + {}, +}; +MODULE_DEVICE_TABLE(of, rt1711h_of_match); +#endif + +static struct i2c_driver rt1711h_i2c_driver = { + .driver = { + .name = "rt1711h", + .of_match_table = of_match_ptr(rt1711h_of_match), + }, + .probe = rt1711h_probe, + .remove = rt1711h_remove, + .id_table = rt1711h_id, +}; +module_i2c_driver(rt1711h_i2c_driver); + +MODULE_AUTHOR("ShuFan Lee <shufan_lee@richtek.com>"); +MODULE_DESCRIPTION("RT1711H USB Type-C Port Controller Interface Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/typec/tcpm.c b/drivers/usb/typec/tcpm.c index 8a201dd53d36..4f1f4215f3d6 100644 --- a/drivers/usb/typec/tcpm.c +++ b/drivers/usb/typec/tcpm.c @@ -26,7 +26,7 @@ #include <linux/usb/pd_vdo.h> #include <linux/usb/role.h> #include <linux/usb/tcpm.h> -#include <linux/usb/typec.h> +#include <linux/usb/typec_altmode.h> #include <linux/workqueue.h> #define FOREACH_STATE(S) \ @@ -169,13 +169,14 @@ enum pd_msg_request { /* Alternate mode support */ #define SVID_DISCOVERY_MAX 16 +#define ALTMODE_DISCOVERY_MAX (SVID_DISCOVERY_MAX * MODE_DISCOVERY_MAX) struct pd_mode_data { int svid_index; /* current SVID index */ int nsvids; u16 svids[SVID_DISCOVERY_MAX]; int altmodes; /* number of alternate modes */ - struct typec_altmode_desc altmode_desc[SVID_DISCOVERY_MAX]; + struct typec_altmode_desc altmode_desc[ALTMODE_DISCOVERY_MAX]; }; struct pd_pps_data { @@ -310,8 +311,8 @@ struct tcpm_port { /* Alternate mode data */ struct pd_mode_data mode_data; - struct typec_altmode *partner_altmode[SVID_DISCOVERY_MAX]; - struct typec_altmode *port_altmode[SVID_DISCOVERY_MAX]; + struct typec_altmode *partner_altmode[ALTMODE_DISCOVERY_MAX]; + struct typec_altmode *port_altmode[ALTMODE_DISCOVERY_MAX]; /* Deadline in jiffies to exit src_try_wait state */ unsigned long max_wait; @@ -418,17 +419,18 @@ static void _tcpm_log(struct tcpm_port *port, const char *fmt, va_list args) u64 ts_nsec = local_clock(); unsigned long rem_nsec; + mutex_lock(&port->logbuffer_lock); if (!port->logbuffer[port->logbuffer_head]) { port->logbuffer[port->logbuffer_head] = kzalloc(LOG_BUFFER_ENTRY_SIZE, GFP_KERNEL); - if (!port->logbuffer[port->logbuffer_head]) + if (!port->logbuffer[port->logbuffer_head]) { + mutex_unlock(&port->logbuffer_lock); return; + } } vsnprintf(tmpbuffer, sizeof(tmpbuffer), fmt, args); - mutex_lock(&port->logbuffer_lock); - if (tcpm_log_full(port)) { port->logbuffer_head = max(port->logbuffer_head - 1, 0); strcpy(tmpbuffer, "overflow"); @@ -640,14 +642,14 @@ void tcpm_pd_transmit_complete(struct tcpm_port *port, } EXPORT_SYMBOL_GPL(tcpm_pd_transmit_complete); -static int tcpm_mux_set(struct tcpm_port *port, enum tcpc_mux_mode mode, +static int tcpm_mux_set(struct tcpm_port *port, int state, enum usb_role usb_role, enum typec_orientation orientation) { int ret; - tcpm_log(port, "Requesting mux mode %d, usb-role %d, orientation %d", - mode, usb_role, orientation); + tcpm_log(port, "Requesting mux state %d, usb-role %d, orientation %d", + state, usb_role, orientation); ret = typec_set_orientation(port->typec_port, orientation); if (ret) @@ -659,7 +661,7 @@ static int tcpm_mux_set(struct tcpm_port *port, enum tcpc_mux_mode mode, return ret; } - return typec_set_mode(port->typec_port, mode); + return typec_set_mode(port->typec_port, state); } static int tcpm_set_polarity(struct tcpm_port *port, @@ -724,6 +726,9 @@ static int tcpm_set_current_limit(struct tcpm_port *port, u32 max_ma, u32 mv) tcpm_log(port, "Setting voltage/current limit %u mV %u mA", mv, max_ma); + port->supply_voltage = mv; + port->current_limit = max_ma; + if (port->tcpc->set_current_limit) ret = port->tcpc->set_current_limit(port->tcpc, max_ma, mv); @@ -786,7 +791,7 @@ static int tcpm_set_roles(struct tcpm_port *port, bool attached, else usb_role = USB_ROLE_DEVICE; - ret = tcpm_mux_set(port, TYPEC_MUX_USB, usb_role, orientation); + ret = tcpm_mux_set(port, TYPEC_STATE_USB, usb_role, orientation); if (ret < 0) return ret; @@ -994,7 +999,6 @@ static void svdm_consume_modes(struct tcpm_port *port, const __le32 *payload, { struct pd_mode_data *pmdata = &port->mode_data; struct typec_altmode_desc *paltmode; - struct typec_mode_desc *pmode; int i; if (pmdata->altmodes >= ARRAY_SIZE(port->partner_altmode)) { @@ -1002,32 +1006,36 @@ static void svdm_consume_modes(struct tcpm_port *port, const __le32 *payload, return; } - paltmode = &pmdata->altmode_desc[pmdata->altmodes]; - memset(paltmode, 0, sizeof(*paltmode)); + for (i = 1; i < cnt; i++) { + paltmode = &pmdata->altmode_desc[pmdata->altmodes]; + memset(paltmode, 0, sizeof(*paltmode)); - paltmode->svid = pmdata->svids[pmdata->svid_index]; + paltmode->svid = pmdata->svids[pmdata->svid_index]; + paltmode->mode = i; + paltmode->vdo = le32_to_cpu(payload[i]); - tcpm_log(port, " Alternate mode %d: SVID 0x%04x", - pmdata->altmodes, paltmode->svid); + tcpm_log(port, " Alternate mode %d: SVID 0x%04x, VDO %d: 0x%08x", + pmdata->altmodes, paltmode->svid, + paltmode->mode, paltmode->vdo); - for (i = 1; i < cnt && paltmode->n_modes < ALTMODE_MAX_MODES; i++) { - pmode = &paltmode->modes[paltmode->n_modes]; - memset(pmode, 0, sizeof(*pmode)); - pmode->vdo = le32_to_cpu(payload[i]); - pmode->index = i - 1; - paltmode->n_modes++; - tcpm_log(port, " VDO %d: 0x%08x", - pmode->index, pmode->vdo); + pmdata->altmodes++; } - port->partner_altmode[pmdata->altmodes] = - typec_partner_register_altmode(port->partner, paltmode); - if (!port->partner_altmode[pmdata->altmodes]) { - tcpm_log(port, - "Failed to register alternate modes for SVID 0x%04x", - paltmode->svid); - return; +} + +static void tcpm_register_partner_altmodes(struct tcpm_port *port) +{ + struct pd_mode_data *modep = &port->mode_data; + struct typec_altmode *altmode; + int i; + + for (i = 0; i < modep->altmodes; i++) { + altmode = typec_partner_register_altmode(port->partner, + &modep->altmode_desc[i]); + if (!altmode) + tcpm_log(port, "Failed to register partner SVID 0x%04x", + modep->altmode_desc[i].svid); + port->partner_altmode[i] = altmode; } - pmdata->altmodes++; } #define supports_modal(port) PD_IDH_MODAL_SUPP((port)->partner_ident.id_header) @@ -1035,19 +1043,32 @@ static void svdm_consume_modes(struct tcpm_port *port, const __le32 *payload, static int tcpm_pd_svdm(struct tcpm_port *port, const __le32 *payload, int cnt, u32 *response) { - u32 p0 = le32_to_cpu(payload[0]); - int cmd_type = PD_VDO_CMDT(p0); - int cmd = PD_VDO_CMD(p0); + struct typec_altmode *adev; + struct typec_altmode *pdev; struct pd_mode_data *modep; + u32 p[PD_MAX_PAYLOAD]; int rlen = 0; - u16 svid; + int cmd_type; + int cmd; int i; + for (i = 0; i < cnt; i++) + p[i] = le32_to_cpu(payload[i]); + + cmd_type = PD_VDO_CMDT(p[0]); + cmd = PD_VDO_CMD(p[0]); + tcpm_log(port, "Rx VDM cmd 0x%x type %d cmd %d len %d", - p0, cmd_type, cmd, cnt); + p[0], cmd_type, cmd, cnt); modep = &port->mode_data; + adev = typec_match_altmode(port->port_altmode, ALTMODE_DISCOVERY_MAX, + PD_VDO_VID(p[0]), PD_VDO_OPOS(p[0])); + + pdev = typec_match_altmode(port->partner_altmode, ALTMODE_DISCOVERY_MAX, + PD_VDO_VID(p[0]), PD_VDO_OPOS(p[0])); + switch (cmd_type) { case CMDT_INIT: switch (cmd) { @@ -1069,17 +1090,19 @@ static int tcpm_pd_svdm(struct tcpm_port *port, const __le32 *payload, int cnt, case CMD_EXIT_MODE: break; case CMD_ATTENTION: - break; + /* Attention command does not have response */ + typec_altmode_attention(adev, p[1]); + return 0; default: break; } if (rlen >= 1) { - response[0] = p0 | VDO_CMDT(CMDT_RSP_ACK); + response[0] = p[0] | VDO_CMDT(CMDT_RSP_ACK); } else if (rlen == 0) { - response[0] = p0 | VDO_CMDT(CMDT_RSP_NAK); + response[0] = p[0] | VDO_CMDT(CMDT_RSP_NAK); rlen = 1; } else { - response[0] = p0 | VDO_CMDT(CMDT_RSP_BUSY); + response[0] = p[0] | VDO_CMDT(CMDT_RSP_BUSY); rlen = 1; } break; @@ -1112,14 +1135,39 @@ static int tcpm_pd_svdm(struct tcpm_port *port, const __le32 *payload, int cnt, svdm_consume_modes(port, payload, cnt); modep->svid_index++; if (modep->svid_index < modep->nsvids) { - svid = modep->svids[modep->svid_index]; + u16 svid = modep->svids[modep->svid_index]; response[0] = VDO(svid, 1, CMD_DISCOVER_MODES); rlen = 1; } else { - /* enter alternate mode if/when implemented */ + tcpm_register_partner_altmodes(port); } break; case CMD_ENTER_MODE: + typec_altmode_update_active(pdev, true); + + if (typec_altmode_vdm(adev, p[0], &p[1], cnt)) { + response[0] = VDO(adev->svid, 1, CMD_EXIT_MODE); + response[0] |= VDO_OPOS(adev->mode); + return 1; + } + return 0; + case CMD_EXIT_MODE: + typec_altmode_update_active(pdev, false); + + /* Back to USB Operation */ + WARN_ON(typec_altmode_notify(adev, TYPEC_STATE_USB, + NULL)); + break; + default: + break; + } + break; + case CMDT_RSP_NAK: + switch (cmd) { + case CMD_ENTER_MODE: + /* Back to USB Operation */ + WARN_ON(typec_altmode_notify(adev, TYPEC_STATE_USB, + NULL)); break; default: break; @@ -1129,6 +1177,9 @@ static int tcpm_pd_svdm(struct tcpm_port *port, const __le32 *payload, int cnt, break; } + /* Informing the alternate mode drivers about everything */ + typec_altmode_vdm(adev, p[0], &p[1], cnt); + return rlen; } @@ -1412,6 +1463,57 @@ static int tcpm_validate_caps(struct tcpm_port *port, const u32 *pdo, return 0; } +static int tcpm_altmode_enter(struct typec_altmode *altmode) +{ + struct tcpm_port *port = typec_altmode_get_drvdata(altmode); + u32 header; + + mutex_lock(&port->lock); + header = VDO(altmode->svid, 1, CMD_ENTER_MODE); + header |= VDO_OPOS(altmode->mode); + + tcpm_queue_vdm(port, header, NULL, 0); + mod_delayed_work(port->wq, &port->vdm_state_machine, 0); + mutex_unlock(&port->lock); + + return 0; +} + +static int tcpm_altmode_exit(struct typec_altmode *altmode) +{ + struct tcpm_port *port = typec_altmode_get_drvdata(altmode); + u32 header; + + mutex_lock(&port->lock); + header = VDO(altmode->svid, 1, CMD_EXIT_MODE); + header |= VDO_OPOS(altmode->mode); + + tcpm_queue_vdm(port, header, NULL, 0); + mod_delayed_work(port->wq, &port->vdm_state_machine, 0); + mutex_unlock(&port->lock); + + return 0; +} + +static int tcpm_altmode_vdm(struct typec_altmode *altmode, + u32 header, const u32 *data, int count) +{ + struct tcpm_port *port = typec_altmode_get_drvdata(altmode); + + mutex_lock(&port->lock); + tcpm_queue_vdm(port, header, data, count - 1); + mod_delayed_work(port->wq, &port->vdm_state_machine, 0); + mutex_unlock(&port->lock); + + return 0; +} + +static const struct typec_altmode_ops tcpm_altmode_ops = { + .enter = tcpm_altmode_enter, + .exit = tcpm_altmode_exit, + .vdm = tcpm_altmode_vdm, +}; + /* * PD (data, control) command handling functions */ @@ -2136,7 +2238,7 @@ static unsigned int tcpm_pd_select_pps_apdo(struct tcpm_port *port) * PPS APDO. Again skip the first sink PDO as this will * always be 5V 3A. */ - for (j = i; j < port->nr_snk_pdo; j++) { + for (j = 1; j < port->nr_snk_pdo; j++) { pdo = port->snk_pdo[j]; switch (pdo_type(pdo)) { @@ -2431,15 +2533,15 @@ static int tcpm_set_charge(struct tcpm_port *port, bool charge) return 0; } -static bool tcpm_start_drp_toggling(struct tcpm_port *port) +static bool tcpm_start_drp_toggling(struct tcpm_port *port, + enum typec_cc_status cc) { int ret; if (port->tcpc->start_drp_toggling && port->port_type == TYPEC_PORT_DRP) { tcpm_log_force(port, "Start DRP toggling"); - ret = port->tcpc->start_drp_toggling(port->tcpc, - tcpm_rp_cc(port)); + ret = port->tcpc->start_drp_toggling(port->tcpc, cc); if (!ret) return true; } @@ -2543,7 +2645,7 @@ out_disable_vconn: out_disable_pd: port->tcpc->set_pd_rx(port->tcpc, false); out_disable_mux: - tcpm_mux_set(port, TYPEC_MUX_NONE, USB_ROLE_NONE, + tcpm_mux_set(port, TYPEC_STATE_SAFE, USB_ROLE_NONE, TYPEC_ORIENTATION_NONE); return ret; } @@ -2589,13 +2691,11 @@ static void tcpm_reset_port(struct tcpm_port *port) tcpm_init_vconn(port); tcpm_set_current_limit(port, 0, 0); tcpm_set_polarity(port, TYPEC_POLARITY_CC1); - tcpm_mux_set(port, TYPEC_MUX_NONE, USB_ROLE_NONE, + tcpm_mux_set(port, TYPEC_STATE_SAFE, USB_ROLE_NONE, TYPEC_ORIENTATION_NONE); tcpm_set_attached_state(port, false); port->try_src_count = 0; port->try_snk_count = 0; - port->supply_voltage = 0; - port->current_limit = 0; port->usb_type = POWER_SUPPLY_USB_TYPE_C; power_supply_changed(port->psy); @@ -2747,7 +2847,7 @@ static void run_state_machine(struct tcpm_port *port) if (!port->non_pd_role_swap) tcpm_swap_complete(port, -ENOTCONN); tcpm_src_detach(port); - if (tcpm_start_drp_toggling(port)) { + if (tcpm_start_drp_toggling(port, tcpm_rp_cc(port))) { tcpm_set_state(port, DRP_TOGGLING, 0); break; } @@ -2922,7 +3022,7 @@ static void run_state_machine(struct tcpm_port *port) tcpm_swap_complete(port, -ENOTCONN); tcpm_pps_complete(port, -ENOTCONN); tcpm_snk_detach(port); - if (tcpm_start_drp_toggling(port)) { + if (tcpm_start_drp_toggling(port, TYPEC_CC_RD)) { tcpm_set_state(port, DRP_TOGGLING, 0); break; } @@ -3043,7 +3143,8 @@ static void run_state_machine(struct tcpm_port *port) tcpm_port_is_sink(port) && time_is_after_jiffies(port->delayed_runtime)) { tcpm_set_state(port, SNK_DISCOVERY, - port->delayed_runtime - jiffies); + jiffies_to_msecs(port->delayed_runtime - + jiffies)); break; } tcpm_set_state(port, unattached_state(port), 0); @@ -4236,6 +4337,81 @@ static int tcpm_copy_vdos(u32 *dest_vdo, const u32 *src_vdo, return nr_vdo; } +static int tcpm_fw_get_caps(struct tcpm_port *port, + struct fwnode_handle *fwnode) +{ + const char *cap_str; + int ret; + u32 mw; + + if (!fwnode) + return -EINVAL; + + /* USB data support is optional */ + ret = fwnode_property_read_string(fwnode, "data-role", &cap_str); + if (ret == 0) { + port->typec_caps.data = typec_find_port_data_role(cap_str); + if (port->typec_caps.data < 0) + return -EINVAL; + } + + ret = fwnode_property_read_string(fwnode, "power-role", &cap_str); + if (ret < 0) + return ret; + + port->typec_caps.type = typec_find_port_power_role(cap_str); + if (port->typec_caps.type < 0) + return -EINVAL; + port->port_type = port->typec_caps.type; + + if (port->port_type == TYPEC_PORT_SNK) + goto sink; + + /* Get source pdos */ + ret = fwnode_property_read_u32_array(fwnode, "source-pdos", + NULL, 0); + if (ret <= 0) + return -EINVAL; + + port->nr_src_pdo = min(ret, PDO_MAX_OBJECTS); + ret = fwnode_property_read_u32_array(fwnode, "source-pdos", + port->src_pdo, port->nr_src_pdo); + if ((ret < 0) || tcpm_validate_caps(port, port->src_pdo, + port->nr_src_pdo)) + return -EINVAL; + + if (port->port_type == TYPEC_PORT_SRC) + return 0; + + /* Get the preferred power role for DRP */ + ret = fwnode_property_read_string(fwnode, "try-power-role", &cap_str); + if (ret < 0) + return ret; + + port->typec_caps.prefer_role = typec_find_power_role(cap_str); + if (port->typec_caps.prefer_role < 0) + return -EINVAL; +sink: + /* Get sink pdos */ + ret = fwnode_property_read_u32_array(fwnode, "sink-pdos", + NULL, 0); + if (ret <= 0) + return -EINVAL; + + port->nr_snk_pdo = min(ret, PDO_MAX_OBJECTS); + ret = fwnode_property_read_u32_array(fwnode, "sink-pdos", + port->snk_pdo, port->nr_snk_pdo); + if ((ret < 0) || tcpm_validate_caps(port, port->snk_pdo, + port->nr_snk_pdo)) + return -EINVAL; + + if (fwnode_property_read_u32(fwnode, "op-sink-microwatt", &mw) < 0) + return -EINVAL; + port->operating_snk_mw = mw / 1000; + + return 0; +} + int tcpm_update_source_capabilities(struct tcpm_port *port, const u32 *pdo, unsigned int nr_pdo) { @@ -4521,12 +4697,36 @@ static int devm_tcpm_psy_register(struct tcpm_port *port) return PTR_ERR_OR_ZERO(port->psy); } +static int tcpm_copy_caps(struct tcpm_port *port, + const struct tcpc_config *tcfg) +{ + if (tcpm_validate_caps(port, tcfg->src_pdo, tcfg->nr_src_pdo) || + tcpm_validate_caps(port, tcfg->snk_pdo, tcfg->nr_snk_pdo)) + return -EINVAL; + + port->nr_src_pdo = tcpm_copy_pdos(port->src_pdo, tcfg->src_pdo, + tcfg->nr_src_pdo); + port->nr_snk_pdo = tcpm_copy_pdos(port->snk_pdo, tcfg->snk_pdo, + tcfg->nr_snk_pdo); + + port->nr_snk_vdo = tcpm_copy_vdos(port->snk_vdo, tcfg->snk_vdo, + tcfg->nr_snk_vdo); + + port->operating_snk_mw = tcfg->operating_snk_mw; + + port->typec_caps.prefer_role = tcfg->default_role; + port->typec_caps.type = tcfg->type; + port->typec_caps.data = tcfg->data; + + return 0; +} + struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc) { struct tcpm_port *port; int i, err; - if (!dev || !tcpc || !tcpc->config || + if (!dev || !tcpc || !tcpc->get_vbus || !tcpc->set_cc || !tcpc->get_cc || !tcpc->set_polarity || !tcpc->set_vconn || !tcpc->set_vbus || !tcpc->set_pd_rx || !tcpc->set_roles || !tcpc->pd_transmit) @@ -4556,29 +4756,18 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc) init_completion(&port->pps_complete); tcpm_debugfs_init(port); - if (tcpm_validate_caps(port, tcpc->config->src_pdo, - tcpc->config->nr_src_pdo) || - tcpm_validate_caps(port, tcpc->config->snk_pdo, - tcpc->config->nr_snk_pdo)) { - err = -EINVAL; + err = tcpm_fw_get_caps(port, tcpc->fwnode); + if ((err < 0) && tcpc->config) + err = tcpm_copy_caps(port, tcpc->config); + if (err < 0) goto out_destroy_wq; - } - port->nr_src_pdo = tcpm_copy_pdos(port->src_pdo, tcpc->config->src_pdo, - tcpc->config->nr_src_pdo); - port->nr_snk_pdo = tcpm_copy_pdos(port->snk_pdo, tcpc->config->snk_pdo, - tcpc->config->nr_snk_pdo); - port->nr_snk_vdo = tcpm_copy_vdos(port->snk_vdo, tcpc->config->snk_vdo, - tcpc->config->nr_snk_vdo); - - port->operating_snk_mw = tcpc->config->operating_snk_mw; - if (!tcpc->config->try_role_hw) - port->try_role = tcpc->config->default_role; + + if (!tcpc->config || !tcpc->config->try_role_hw) + port->try_role = port->typec_caps.prefer_role; else port->try_role = TYPEC_NO_PREFERRED_ROLE; - port->typec_caps.prefer_role = tcpc->config->default_role; - port->typec_caps.type = tcpc->config->type; - port->typec_caps.data = tcpc->config->data; + port->typec_caps.fwnode = tcpc->fwnode; port->typec_caps.revision = 0x0120; /* Type-C spec release 1.2 */ port->typec_caps.pd_revision = 0x0300; /* USB-PD spec release 3.0 */ port->typec_caps.dr_set = tcpm_dr_set; @@ -4588,7 +4777,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc) port->typec_caps.port_type_set = tcpm_port_type_set; port->partner_desc.identity = &port->partner_ident; - port->port_type = tcpc->config->type; + port->port_type = port->typec_caps.type; port->role_sw = usb_role_switch_get(port->dev); if (IS_ERR(port->role_sw)) { @@ -4606,7 +4795,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc) goto out_destroy_wq; } - if (tcpc->config->alt_modes) { + if (tcpc->config && tcpc->config->alt_modes) { const struct typec_altmode_desc *paltmode = tcpc->config->alt_modes; i = 0; @@ -4621,6 +4810,8 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc) dev_name(dev), paltmode->svid); break; } + typec_altmode_set_drvdata(alt, port); + alt->ops = &tcpm_altmode_ops; port->port_altmode[i] = alt; i++; paltmode++; diff --git a/drivers/usb/typec/tps6598x.c b/drivers/usb/typec/tps6598x.c index 4b4c8d271b27..c84c8c189e90 100644 --- a/drivers/usb/typec/tps6598x.c +++ b/drivers/usb/typec/tps6598x.c @@ -81,12 +81,21 @@ struct tps6598x { struct typec_capability typec_cap; }; +/* + * Max data bytes for Data1, Data2, and other registers. See ch 1.3.2: + * http://www.ti.com/lit/ug/slvuan1a/slvuan1a.pdf + */ +#define TPS_MAX_LEN 64 + static int tps6598x_block_read(struct tps6598x *tps, u8 reg, void *val, size_t len) { - u8 data[len + 1]; + u8 data[TPS_MAX_LEN + 1]; int ret; + if (WARN_ON(len + 1 > sizeof(data))) + return -EINVAL; + if (!tps->i2c_protocol) return regmap_raw_read(tps->regmap, reg, val, len); diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c index bd5cca5632b3..8d0a6fe748bd 100644 --- a/drivers/usb/typec/ucsi/ucsi.c +++ b/drivers/usb/typec/ucsi/ucsi.c @@ -350,6 +350,19 @@ static void ucsi_connector_change(struct work_struct *work) } if (con->status.change & UCSI_CONSTAT_CONNECT_CHANGE) { + typec_set_pwr_role(con->port, con->status.pwr_dir); + + switch (con->status.partner_type) { + case UCSI_CONSTAT_PARTNER_TYPE_UFP: + typec_set_data_role(con->port, TYPEC_HOST); + break; + case UCSI_CONSTAT_PARTNER_TYPE_DFP: + typec_set_data_role(con->port, TYPEC_DEVICE); + break; + default: + break; + } + if (con->status.connected) ucsi_register_partner(con); else diff --git a/drivers/usb/typec/ucsi/ucsi_acpi.c b/drivers/usb/typec/ucsi/ucsi_acpi.c index 44eb4e1ea817..a18112a83fae 100644 --- a/drivers/usb/typec/ucsi/ucsi_acpi.c +++ b/drivers/usb/typec/ucsi/ucsi_acpi.c @@ -79,6 +79,11 @@ static int ucsi_acpi_probe(struct platform_device *pdev) return -ENODEV; } + /* This will make sure we can use ioremap_nocache() */ + status = acpi_release_memory(ACPI_HANDLE(&pdev->dev), res, 1); + if (ACPI_FAILURE(status)) + return -ENOMEM; + /* * NOTE: The memory region for the data structures is used also in an * operation region, which means ACPI has already reserved it. Therefore diff --git a/drivers/usb/usb-skeleton.c b/drivers/usb/usb-skeleton.c index c3ddd0f1f449..f101347e3ea3 100644 --- a/drivers/usb/usb-skeleton.c +++ b/drivers/usb/usb-skeleton.c @@ -159,10 +159,11 @@ static int skel_flush(struct file *file, fl_owner_t id) static void skel_read_bulk_callback(struct urb *urb) { struct usb_skel *dev; + unsigned long flags; dev = urb->context; - spin_lock(&dev->err_lock); + spin_lock_irqsave(&dev->err_lock, flags); /* sync/async unlink faults aren't errors */ if (urb->status) { if (!(urb->status == -ENOENT || @@ -177,7 +178,7 @@ static void skel_read_bulk_callback(struct urb *urb) dev->bulk_in_filled = urb->actual_length; } dev->ongoing_read = 0; - spin_unlock(&dev->err_lock); + spin_unlock_irqrestore(&dev->err_lock, flags); wake_up_interruptible(&dev->bulk_in_wait); } @@ -331,6 +332,7 @@ exit: static void skel_write_bulk_callback(struct urb *urb) { struct usb_skel *dev; + unsigned long flags; dev = urb->context; @@ -343,9 +345,9 @@ static void skel_write_bulk_callback(struct urb *urb) "%s - nonzero write bulk status received: %d\n", __func__, urb->status); - spin_lock(&dev->err_lock); + spin_lock_irqsave(&dev->err_lock, flags); dev->errors = urb->status; - spin_unlock(&dev->err_lock); + spin_unlock_irqrestore(&dev->err_lock, flags); } /* free up our allocated buffer */ diff --git a/drivers/usb/usbip/vudc_dev.c b/drivers/usb/usbip/vudc_dev.c index 1b9a4f87db59..1634d8698e15 100644 --- a/drivers/usb/usbip/vudc_dev.c +++ b/drivers/usb/usbip/vudc_dev.c @@ -279,12 +279,10 @@ static int vep_disable(struct usb_ep *_ep) static struct usb_request *vep_alloc_request(struct usb_ep *_ep, gfp_t mem_flags) { - struct vep *ep; struct vrequest *req; if (!_ep) return NULL; - ep = to_vep(_ep); req = kzalloc(sizeof(*req), mem_flags); if (!req) diff --git a/drivers/usb/wusbcore/security.c b/drivers/usb/wusbcore/security.c index 33d2f5d7f33b..14ac8c98ac9e 100644 --- a/drivers/usb/wusbcore/security.c +++ b/drivers/usb/wusbcore/security.c @@ -217,7 +217,7 @@ int wusb_dev_sec_add(struct wusbhc *wusbhc, result = usb_get_descriptor(usb_dev, USB_DT_SECURITY, 0, secd, sizeof(*secd)); - if (result < sizeof(*secd)) { + if (result < (int)sizeof(*secd)) { dev_err(dev, "Can't read security descriptor or " "not enough data: %d\n", result); goto out; diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c index 7fca4e7e556d..01f2f21830c0 100644 --- a/drivers/usb/wusbcore/wa-xfer.c +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -1918,7 +1918,7 @@ EXPORT_SYMBOL_GPL(wa_urb_enqueue); */ int wa_urb_dequeue(struct wahc *wa, struct urb *urb, int status) { - unsigned long flags, flags2; + unsigned long flags; struct wa_xfer *xfer; struct wa_seg *seg; struct wa_rpipe *rpipe; @@ -1964,10 +1964,10 @@ int wa_urb_dequeue(struct wahc *wa, struct urb *urb, int status) goto out_unlock; } /* Check the delayed list -> if there, release and complete */ - spin_lock_irqsave(&wa->xfer_list_lock, flags2); + spin_lock(&wa->xfer_list_lock); if (!list_empty(&xfer->list_node) && xfer->seg == NULL) goto dequeue_delayed; - spin_unlock_irqrestore(&wa->xfer_list_lock, flags2); + spin_unlock(&wa->xfer_list_lock); if (xfer->seg == NULL) /* still hasn't reached */ goto out_unlock; /* setup(), enqueue_b() completes */ /* Ok, the xfer is in flight already, it's been setup and submitted.*/ @@ -2054,7 +2054,7 @@ out_unlock: dequeue_delayed: list_del_init(&xfer->list_node); - spin_unlock_irqrestore(&wa->xfer_list_lock, flags2); + spin_unlock(&wa->xfer_list_lock); xfer->result = urb->status; spin_unlock_irqrestore(&xfer->lock, flags); wa_xfer_giveback(xfer); |