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path: root/drivers/usb/dwc2
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Diffstat (limited to 'drivers/usb/dwc2')
-rw-r--r--drivers/usb/dwc2/Kconfig8
-rw-r--r--drivers/usb/dwc2/Makefile6
-rw-r--r--drivers/usb/dwc2/core.h2
-rw-r--r--drivers/usb/dwc2/core_intr.c3
-rw-r--r--drivers/usb/dwc2/hcd.c12
-rw-r--r--drivers/usb/dwc2/pci.c160
-rw-r--r--drivers/usb/dwc2/platform.c29
7 files changed, 115 insertions, 105 deletions
diff --git a/drivers/usb/dwc2/Kconfig b/drivers/usb/dwc2/Kconfig
index 76b9ba4dc925..1bcb36ae6505 100644
--- a/drivers/usb/dwc2/Kconfig
+++ b/drivers/usb/dwc2/Kconfig
@@ -59,11 +59,13 @@ config USB_DWC2_PLATFORM
config USB_DWC2_PCI
tristate "DWC2 PCI"
- depends on USB_DWC2_HOST && PCI
- default USB_DWC2_HOST
+ depends on PCI
+ default n
+ select USB_DWC2_PLATFORM
+ select NOP_USB_XCEIV
help
The Designware USB2.0 PCI interface module for controllers
- connected to a PCI bus. This is only used for host mode.
+ connected to a PCI bus.
config USB_DWC2_DEBUG
bool "Enable Debugging Messages"
diff --git a/drivers/usb/dwc2/Makefile b/drivers/usb/dwc2/Makefile
index 8f752679752a..f07b425eaff3 100644
--- a/drivers/usb/dwc2/Makefile
+++ b/drivers/usb/dwc2/Makefile
@@ -19,10 +19,8 @@ endif
# mode. The PCI bus interface module will called dwc2_pci.ko and the platform
# interface module will be called dwc2_platform.ko.
-ifneq ($(CONFIG_USB_DWC2_PCI),)
- obj-$(CONFIG_USB_DWC2) += dwc2_pci.o
- dwc2_pci-y := pci.o
-endif
+obj-$(CONFIG_USB_DWC2_PCI) += dwc2_pci.o
+dwc2_pci-y := pci.o
obj-$(CONFIG_USB_DWC2_PLATFORM) += dwc2_platform.o
dwc2_platform-y := platform.o
diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h
index f74304b12652..836c012c7707 100644
--- a/drivers/usb/dwc2/core.h
+++ b/drivers/usb/dwc2/core.h
@@ -593,6 +593,8 @@ struct dwc2_hsotg {
struct dwc2_core_params *core_params;
enum usb_otg_state op_state;
enum usb_dr_mode dr_mode;
+ unsigned int hcd_enabled:1;
+ unsigned int gadget_enabled:1;
struct phy *phy;
struct usb_phy *uphy;
diff --git a/drivers/usb/dwc2/core_intr.c b/drivers/usb/dwc2/core_intr.c
index 02e3e2d4ea56..6cf047878dba 100644
--- a/drivers/usb/dwc2/core_intr.c
+++ b/drivers/usb/dwc2/core_intr.c
@@ -377,6 +377,9 @@ static void dwc2_handle_disconnect_intr(struct dwc2_hsotg *hsotg)
dwc2_is_host_mode(hsotg) ? "Host" : "Device",
dwc2_op_state_str(hsotg));
+ if (hsotg->op_state == OTG_STATE_A_HOST)
+ dwc2_hcd_disconnect(hsotg);
+
/* Change to L3 (OFF) state */
hsotg->lx_state = DWC2_L3;
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index c78c8740db1d..fbbbac2150a5 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -257,6 +257,14 @@ static void dwc2_hcd_cleanup_channels(struct dwc2_hsotg *hsotg)
*/
channel->qh = NULL;
}
+ /* All channels have been freed, mark them available */
+ if (hsotg->core_params->uframe_sched > 0) {
+ hsotg->available_host_channels =
+ hsotg->core_params->host_channels;
+ } else {
+ hsotg->non_periodic_channels = 0;
+ hsotg->periodic_channels = 0;
+ }
}
/**
@@ -1527,7 +1535,7 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
hprt0 |= HPRT0_RES;
writel(hprt0, hsotg->regs + HPRT0);
hprt0 &= ~HPRT0_SUSP;
- usleep_range(100000, 150000);
+ msleep(USB_RESUME_TIMEOUT);
hprt0 &= ~HPRT0_RES;
writel(hprt0, hsotg->regs + HPRT0);
@@ -1608,7 +1616,7 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq,
dev_dbg(hsotg->dev, "GetHubDescriptor\n");
hub_desc = (struct usb_hub_descriptor *)buf;
hub_desc->bDescLength = 9;
- hub_desc->bDescriptorType = 0x29;
+ hub_desc->bDescriptorType = USB_DT_HUB;
hub_desc->bNbrPorts = 1;
hub_desc->wHubCharacteristics =
cpu_to_le16(HUB_CHAR_COMMON_LPSM |
diff --git a/drivers/usb/dwc2/pci.c b/drivers/usb/dwc2/pci.c
index a4e724b0a62e..ae419615a176 100644
--- a/drivers/usb/dwc2/pci.c
+++ b/drivers/usb/dwc2/pci.c
@@ -50,113 +50,97 @@
#include <linux/usb/hcd.h>
#include <linux/usb/ch11.h>
+#include <linux/platform_device.h>
+#include <linux/usb/usb_phy_generic.h>
-#include "core.h"
-#include "hcd.h"
-
-#define PCI_VENDOR_ID_SYNOPSYS 0x16c3
#define PCI_PRODUCT_ID_HAPS_HSOTG 0xabc0
-static const char dwc2_driver_name[] = "dwc2";
-
-static const struct dwc2_core_params dwc2_module_params = {
- .otg_cap = -1,
- .otg_ver = -1,
- .dma_enable = -1,
- .dma_desc_enable = 0,
- .speed = -1,
- .enable_dynamic_fifo = -1,
- .en_multiple_tx_fifo = -1,
- .host_rx_fifo_size = 1024,
- .host_nperio_tx_fifo_size = 256,
- .host_perio_tx_fifo_size = 1024,
- .max_transfer_size = 65535,
- .max_packet_count = 511,
- .host_channels = -1,
- .phy_type = -1,
- .phy_utmi_width = -1,
- .phy_ulpi_ddr = -1,
- .phy_ulpi_ext_vbus = -1,
- .i2c_enable = -1,
- .ulpi_fs_ls = -1,
- .host_support_fs_ls_low_power = -1,
- .host_ls_low_power_phy_clk = -1,
- .ts_dline = -1,
- .reload_ctl = -1,
- .ahbcfg = -1,
- .uframe_sched = -1,
+static const char dwc2_driver_name[] = "dwc2-pci";
+
+struct dwc2_pci_glue {
+ struct platform_device *dwc2;
+ struct platform_device *phy;
};
-/**
- * dwc2_driver_remove() - Called when the DWC_otg core is unregistered with the
- * DWC_otg driver
- *
- * @dev: Bus device
- *
- * This routine is called, for example, when the rmmod command is executed. The
- * device may or may not be electrically present. If it is present, the driver
- * stops device processing. Any resources used on behalf of this device are
- * freed.
- */
-static void dwc2_driver_remove(struct pci_dev *dev)
+static void dwc2_pci_remove(struct pci_dev *pci)
{
- struct dwc2_hsotg *hsotg = pci_get_drvdata(dev);
+ struct dwc2_pci_glue *glue = pci_get_drvdata(pci);
- dwc2_hcd_remove(hsotg);
- pci_disable_device(dev);
+ platform_device_unregister(glue->dwc2);
+ usb_phy_generic_unregister(glue->phy);
+ kfree(glue);
+ pci_set_drvdata(pci, NULL);
}
-/**
- * dwc2_driver_probe() - Called when the DWC_otg core is bound to the DWC_otg
- * driver
- *
- * @dev: Bus device
- *
- * This routine creates the driver components required to control the device
- * (core, HCD, and PCD) and initializes the device. The driver components are
- * stored in a dwc2_hsotg structure. A reference to the dwc2_hsotg is saved
- * in the device private data. This allows the driver to access the dwc2_hsotg
- * structure on subsequent calls to driver methods for this device.
- */
-static int dwc2_driver_probe(struct pci_dev *dev,
- const struct pci_device_id *id)
+static int dwc2_pci_probe(struct pci_dev *pci,
+ const struct pci_device_id *id)
{
- struct dwc2_hsotg *hsotg;
- int retval;
+ struct resource res[2];
+ struct platform_device *dwc2;
+ struct platform_device *phy;
+ int ret;
+ struct device *dev = &pci->dev;
+ struct dwc2_pci_glue *glue;
+
+ ret = pcim_enable_device(pci);
+ if (ret) {
+ dev_err(dev, "failed to enable pci device\n");
+ return -ENODEV;
+ }
+
+ pci_set_master(pci);
- hsotg = devm_kzalloc(&dev->dev, sizeof(*hsotg), GFP_KERNEL);
- if (!hsotg)
+ dwc2 = platform_device_alloc("dwc2", PLATFORM_DEVID_AUTO);
+ if (!dwc2) {
+ dev_err(dev, "couldn't allocate dwc2 device\n");
return -ENOMEM;
+ }
- hsotg->dev = &dev->dev;
- hsotg->regs = devm_ioremap_resource(&dev->dev, &dev->resource[0]);
- if (IS_ERR(hsotg->regs))
- return PTR_ERR(hsotg->regs);
+ memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
- dev_dbg(&dev->dev, "mapped PA %08lx to VA %p\n",
- (unsigned long)pci_resource_start(dev, 0), hsotg->regs);
+ res[0].start = pci_resource_start(pci, 0);
+ res[0].end = pci_resource_end(pci, 0);
+ res[0].name = "dwc2";
+ res[0].flags = IORESOURCE_MEM;
- if (pci_enable_device(dev) < 0)
- return -ENODEV;
+ res[1].start = pci->irq;
+ res[1].name = "dwc2";
+ res[1].flags = IORESOURCE_IRQ;
- pci_set_master(dev);
+ ret = platform_device_add_resources(dwc2, res, ARRAY_SIZE(res));
+ if (ret) {
+ dev_err(dev, "couldn't add resources to dwc2 device\n");
+ return ret;
+ }
- retval = devm_request_irq(hsotg->dev, dev->irq,
- dwc2_handle_common_intr, IRQF_SHARED,
- dev_name(hsotg->dev), hsotg);
- if (retval)
- return retval;
+ dwc2->dev.parent = dev;
- spin_lock_init(&hsotg->lock);
- retval = dwc2_hcd_init(hsotg, dev->irq, &dwc2_module_params);
- if (retval) {
- pci_disable_device(dev);
- return retval;
+ phy = usb_phy_generic_register();
+ if (IS_ERR(phy)) {
+ dev_err(dev, "error registering generic PHY (%ld)\n",
+ PTR_ERR(phy));
+ return PTR_ERR(phy);
}
- pci_set_drvdata(dev, hsotg);
+ ret = platform_device_add(dwc2);
+ if (ret) {
+ dev_err(dev, "failed to register dwc2 device\n");
+ goto err;
+ }
+
+ glue = kzalloc(sizeof(*glue), GFP_KERNEL);
+ if (!glue)
+ return -ENOMEM;
+
+ glue->phy = phy;
+ glue->dwc2 = dwc2;
+ pci_set_drvdata(pci, glue);
- return retval;
+ return 0;
+err:
+ usb_phy_generic_unregister(phy);
+ platform_device_put(dwc2);
+ return ret;
}
static const struct pci_device_id dwc2_pci_ids[] = {
@@ -174,8 +158,8 @@ MODULE_DEVICE_TABLE(pci, dwc2_pci_ids);
static struct pci_driver dwc2_pci_driver = {
.name = dwc2_driver_name,
.id_table = dwc2_pci_ids,
- .probe = dwc2_driver_probe,
- .remove = dwc2_driver_remove,
+ .probe = dwc2_pci_probe,
+ .remove = dwc2_pci_remove,
};
module_pci_driver(dwc2_pci_driver);
diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index ae095f009b4f..185663e0b5f4 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -121,8 +121,10 @@ static int dwc2_driver_remove(struct platform_device *dev)
{
struct dwc2_hsotg *hsotg = platform_get_drvdata(dev);
- dwc2_hcd_remove(hsotg);
- s3c_hsotg_remove(hsotg);
+ if (hsotg->hcd_enabled)
+ dwc2_hcd_remove(hsotg);
+ if (hsotg->gadget_enabled)
+ s3c_hsotg_remove(hsotg);
return 0;
}
@@ -234,12 +236,23 @@ static int dwc2_driver_probe(struct platform_device *dev)
spin_lock_init(&hsotg->lock);
mutex_init(&hsotg->init_mutex);
- retval = dwc2_gadget_init(hsotg, irq);
- if (retval)
- return retval;
- retval = dwc2_hcd_init(hsotg, irq, params);
- if (retval)
- return retval;
+
+ if (hsotg->dr_mode != USB_DR_MODE_HOST) {
+ retval = dwc2_gadget_init(hsotg, irq);
+ if (retval)
+ return retval;
+ hsotg->gadget_enabled = 1;
+ }
+
+ if (hsotg->dr_mode != USB_DR_MODE_PERIPHERAL) {
+ retval = dwc2_hcd_init(hsotg, irq, params);
+ if (retval) {
+ if (hsotg->gadget_enabled)
+ s3c_hsotg_remove(hsotg);
+ return retval;
+ }
+ hsotg->hcd_enabled = 1;
+ }
platform_set_drvdata(dev, hsotg);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-30 12:12:24 +0300