diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-01 21:41:05 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-01 21:41:05 +0300 |
commit | e272a186435e747b25b01afb38d172853219fbda (patch) | |
tree | e7344dd9370bdf2e76a92f235ebc80792f77c620 | |
parent | e8ed34ced175f2670f86c0bebc41af1628952b92 (diff) | |
parent | 0ec8648379334f1e127ebd5e57a625890f116824 (diff) | |
download | linux-e272a186435e747b25b01afb38d172853219fbda.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: Add support for Mobilcom Debitel USB UMTS Surf-Stick to option driver
USB: work around for EHCI with quirky periodic schedules
USB: musb: Fix CPPI IRQs not being signaled
USB: musb: respect usb_request->zero in control requests
USB: musb: fix ISOC Tx programming for CPPI DMAs
USB: musb: Remove unwanted message in boot log
usb: amd5536udc: fixed shared interrupt bug and warning oops
USB: ftdi_sio: Keep going when write errors are encountered.
USB: musb_gadget: fix STALL handling
USB: EHCI: don't send Clear-TT-Buffer following a STALL
-rw-r--r-- | drivers/usb/core/hub.c | 2 | ||||
-rw-r--r-- | drivers/usb/gadget/amd5536udc.c | 49 | ||||
-rw-r--r-- | drivers/usb/host/ehci-hcd.c | 2 | ||||
-rw-r--r-- | drivers/usb/host/ehci-pci.c | 4 | ||||
-rw-r--r-- | drivers/usb/host/ehci-q.c | 16 | ||||
-rw-r--r-- | drivers/usb/host/ehci-sched.c | 12 | ||||
-rw-r--r-- | drivers/usb/host/ehci.h | 2 | ||||
-rw-r--r-- | drivers/usb/musb/cppi_dma.c | 10 | ||||
-rw-r--r-- | drivers/usb/musb/musb_core.c | 4 | ||||
-rw-r--r-- | drivers/usb/musb/musb_gadget.c | 79 | ||||
-rw-r--r-- | drivers/usb/musb/musb_gadget_ep0.c | 3 | ||||
-rw-r--r-- | drivers/usb/musb/musb_host.c | 5 | ||||
-rw-r--r-- | drivers/usb/serial/ftdi_sio.c | 3 | ||||
-rw-r--r-- | drivers/usb/serial/option.c | 5 |
14 files changed, 118 insertions, 78 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 5ce839137ad6..0f857e645058 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -444,7 +444,7 @@ resubmit: static inline int hub_clear_tt_buffer (struct usb_device *hdev, u16 devinfo, u16 tt) { - return usb_control_msg(hdev, usb_rcvctrlpipe(hdev, 0), + return usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0), HUB_CLEAR_TT_BUFFER, USB_RT_PORT, devinfo, tt, NULL, 0, 1000); } diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c index d5b65962dd36..731150d4b1d9 100644 --- a/drivers/usb/gadget/amd5536udc.c +++ b/drivers/usb/gadget/amd5536udc.c @@ -1213,7 +1213,12 @@ udc_queue(struct usb_ep *usbep, struct usb_request *usbreq, gfp_t gfp) tmp &= AMD_UNMASK_BIT(ep->num); writel(tmp, &dev->regs->ep_irqmsk); } - } + } else if (ep->in) { + /* enable ep irq */ + tmp = readl(&dev->regs->ep_irqmsk); + tmp &= AMD_UNMASK_BIT(ep->num); + writel(tmp, &dev->regs->ep_irqmsk); + } } else if (ep->dma) { @@ -2005,18 +2010,17 @@ __acquires(dev->lock) { int tmp; - /* empty queues and init hardware */ - udc_basic_init(dev); - for (tmp = 0; tmp < UDC_EP_NUM; tmp++) { - empty_req_queue(&dev->ep[tmp]); - } - if (dev->gadget.speed != USB_SPEED_UNKNOWN) { spin_unlock(&dev->lock); driver->disconnect(&dev->gadget); spin_lock(&dev->lock); } - /* init */ + + /* empty queues and init hardware */ + udc_basic_init(dev); + for (tmp = 0; tmp < UDC_EP_NUM; tmp++) + empty_req_queue(&dev->ep[tmp]); + udc_setup_endpoints(dev); } @@ -2472,6 +2476,13 @@ static irqreturn_t udc_data_in_isr(struct udc *dev, int ep_ix) } } + } else if (!use_dma && ep->in) { + /* disable interrupt */ + tmp = readl( + &dev->regs->ep_irqmsk); + tmp |= AMD_BIT(ep->num); + writel(tmp, + &dev->regs->ep_irqmsk); } } /* clear status bits */ @@ -3279,6 +3290,17 @@ static int udc_pci_probe( goto finished; } + spin_lock_init(&dev->lock); + /* udc csr registers base */ + dev->csr = dev->virt_addr + UDC_CSR_ADDR; + /* dev registers base */ + dev->regs = dev->virt_addr + UDC_DEVCFG_ADDR; + /* ep registers base */ + dev->ep_regs = dev->virt_addr + UDC_EPREGS_ADDR; + /* fifo's base */ + dev->rxfifo = (u32 __iomem *)(dev->virt_addr + UDC_RXFIFO_ADDR); + dev->txfifo = (u32 __iomem *)(dev->virt_addr + UDC_TXFIFO_ADDR); + if (request_irq(pdev->irq, udc_irq, IRQF_SHARED, name, dev) != 0) { dev_dbg(&dev->pdev->dev, "request_irq(%d) fail\n", pdev->irq); kfree(dev); @@ -3331,7 +3353,6 @@ static int udc_probe(struct udc *dev) udc_pollstall_timer.data = 0; /* device struct setup */ - spin_lock_init(&dev->lock); dev->gadget.ops = &udc_ops; dev_set_name(&dev->gadget.dev, "gadget"); @@ -3340,16 +3361,6 @@ static int udc_probe(struct udc *dev) dev->gadget.name = name; dev->gadget.is_dualspeed = 1; - /* udc csr registers base */ - dev->csr = dev->virt_addr + UDC_CSR_ADDR; - /* dev registers base */ - dev->regs = dev->virt_addr + UDC_DEVCFG_ADDR; - /* ep registers base */ - dev->ep_regs = dev->virt_addr + UDC_EPREGS_ADDR; - /* fifo's base */ - dev->rxfifo = (u32 __iomem *)(dev->virt_addr + UDC_RXFIFO_ADDR); - dev->txfifo = (u32 __iomem *)(dev->virt_addr + UDC_TXFIFO_ADDR); - /* init registers, interrupts, ... */ startup_registers(dev); diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 9835e0713943..f5f5601701c9 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -28,6 +28,7 @@ #include <linux/errno.h> #include <linux/init.h> #include <linux/timer.h> +#include <linux/ktime.h> #include <linux/list.h> #include <linux/interrupt.h> #include <linux/usb.h> @@ -676,6 +677,7 @@ static int ehci_run (struct usb_hcd *hcd) ehci_readl(ehci, &ehci->regs->command); /* unblock posted writes */ msleep(5); up_write(&ehci_cf_port_reset_rwsem); + ehci->last_periodic_enable = ktime_get_real(); temp = HC_VERSION(ehci_readl(ehci, &ehci->caps->hc_capbase)); ehci_info (ehci, diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index 378861b9d79a..ead5f4f2aa5a 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -111,6 +111,10 @@ static int ehci_pci_setup(struct usb_hcd *hcd) switch (pdev->vendor) { case PCI_VENDOR_ID_INTEL: ehci->need_io_watchdog = 0; + if (pdev->device == 0x27cc) { + ehci->broken_periodic = 1; + ehci_info(ehci, "using broken periodic workaround\n"); + } break; case PCI_VENDOR_ID_TDI: if (pdev->device == PCI_DEVICE_ID_TDI_EHCI) { diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index 00ad9ce392ed..139a2cc3f641 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -487,8 +487,20 @@ halt: * we must clear the TT buffer (11.17.5). */ if (unlikely(last_status != -EINPROGRESS && - last_status != -EREMOTEIO)) - ehci_clear_tt_buffer(ehci, qh, urb, token); + last_status != -EREMOTEIO)) { + /* The TT's in some hubs malfunction when they + * receive this request following a STALL (they + * stop sending isochronous packets). Since a + * STALL can't leave the TT buffer in a busy + * state (if you believe Figures 11-48 - 11-51 + * in the USB 2.0 spec), we won't clear the TT + * buffer in this case. Strictly speaking this + * is a violation of the spec. + */ + if (last_status != -EPIPE) + ehci_clear_tt_buffer(ehci, qh, urb, + token); + } } /* if we're removing something not at the queue head, diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index b25cdea93a1f..a5535b5e3fe2 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -475,6 +475,8 @@ static int enable_periodic (struct ehci_hcd *ehci) /* make sure ehci_work scans these */ ehci->next_uframe = ehci_readl(ehci, &ehci->regs->frame_index) % (ehci->periodic_size << 3); + if (unlikely(ehci->broken_periodic)) + ehci->last_periodic_enable = ktime_get_real(); return 0; } @@ -486,6 +488,16 @@ static int disable_periodic (struct ehci_hcd *ehci) if (--ehci->periodic_sched) return 0; + if (unlikely(ehci->broken_periodic)) { + /* delay experimentally determined */ + ktime_t safe = ktime_add_us(ehci->last_periodic_enable, 1000); + ktime_t now = ktime_get_real(); + s64 delay = ktime_us_delta(safe, now); + + if (unlikely(delay > 0)) + udelay(delay); + } + /* did setting PSE not take effect yet? * takes effect only at frame boundaries... */ diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 064e76821ff5..2d85e21ff282 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -118,6 +118,7 @@ struct ehci_hcd { /* one per controller */ unsigned stamp; unsigned random_frame; unsigned long next_statechange; + ktime_t last_periodic_enable; u32 command; /* SILICON QUIRKS */ @@ -127,6 +128,7 @@ struct ehci_hcd { /* one per controller */ unsigned big_endian_desc:1; unsigned has_amcc_usb23:1; unsigned need_io_watchdog:1; + unsigned broken_periodic:1; /* required for usb32 quirk */ #define OHCI_CTRL_HCFS (3 << 6) diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c index c3577bbbae6c..ef2332a9941d 100644 --- a/drivers/usb/musb/cppi_dma.c +++ b/drivers/usb/musb/cppi_dma.c @@ -1442,11 +1442,6 @@ static int cppi_channel_abort(struct dma_channel *channel) musb_writew(regs, MUSB_TXCSR, value); musb_writew(regs, MUSB_TXCSR, value); - /* re-enable interrupt */ - if (enabled) - musb_writel(tibase, DAVINCI_TXCPPI_INTENAB_REG, - (1 << cppi_ch->index)); - /* While we scrub the TX state RAM, ensure that we clean * up any interrupt that's currently asserted: * 1. Write to completion Ptr value 0x1(bit 0 set) @@ -1459,6 +1454,11 @@ static int cppi_channel_abort(struct dma_channel *channel) cppi_reset_tx(tx_ram, 1); musb_writel(&tx_ram->tx_complete, 0, 0); + /* re-enable interrupt */ + if (enabled) + musb_writel(tibase, DAVINCI_TXCPPI_INTENAB_REG, + (1 << cppi_ch->index)); + cppi_dump_tx(5, cppi_ch, " (done teardown)"); /* REVISIT tx side _should_ clean up the same way diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 3a61ddb62bd2..547e0e390726 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -1450,7 +1450,7 @@ static int __init musb_core_init(u16 musb_type, struct musb *musb) #endif if (hw_ep->max_packet_sz_tx) { - printk(KERN_DEBUG + DBG(1, "%s: hw_ep %d%s, %smax %d\n", musb_driver_name, i, hw_ep->is_shared_fifo ? "shared" : "tx", @@ -1459,7 +1459,7 @@ static int __init musb_core_init(u16 musb_type, struct musb *musb) hw_ep->max_packet_sz_tx); } if (hw_ep->max_packet_sz_rx && !hw_ep->is_shared_fifo) { - printk(KERN_DEBUG + DBG(1, "%s: hw_ep %d%s, %smax %d\n", musb_driver_name, i, "rx", diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index 8b3c4e2ed7b8..74073f9a43f0 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -4,6 +4,7 @@ * Copyright 2005 Mentor Graphics Corporation * Copyright (C) 2005-2006 by Texas Instruments * Copyright (C) 2006-2007 Nokia Corporation + * Copyright (C) 2009 MontaVista Software, Inc. <source@mvista.com> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -436,14 +437,6 @@ void musb_g_tx(struct musb *musb, u8 epnum) csr |= MUSB_TXCSR_P_WZC_BITS; csr &= ~MUSB_TXCSR_P_SENTSTALL; musb_writew(epio, MUSB_TXCSR, csr); - if (dma_channel_status(dma) == MUSB_DMA_STATUS_BUSY) { - dma->status = MUSB_DMA_STATUS_CORE_ABORT; - musb->dma_controller->channel_abort(dma); - } - - if (request) - musb_g_giveback(musb_ep, request, -EPIPE); - break; } @@ -582,15 +575,25 @@ void musb_g_tx(struct musb *musb, u8 epnum) */ static void rxstate(struct musb *musb, struct musb_request *req) { - u16 csr = 0; const u8 epnum = req->epnum; struct usb_request *request = &req->request; struct musb_ep *musb_ep = &musb->endpoints[epnum].ep_out; void __iomem *epio = musb->endpoints[epnum].regs; unsigned fifo_count = 0; u16 len = musb_ep->packet_sz; + u16 csr = musb_readw(epio, MUSB_RXCSR); - csr = musb_readw(epio, MUSB_RXCSR); + /* We shouldn't get here while DMA is active, but we do... */ + if (dma_channel_status(musb_ep->dma) == MUSB_DMA_STATUS_BUSY) { + DBG(4, "DMA pending...\n"); + return; + } + + if (csr & MUSB_RXCSR_P_SENDSTALL) { + DBG(5, "%s stalling, RXCSR %04x\n", + musb_ep->end_point.name, csr); + return; + } if (is_cppi_enabled() && musb_ep->dma) { struct dma_controller *c = musb->dma_controller; @@ -761,19 +764,10 @@ void musb_g_rx(struct musb *musb, u8 epnum) csr, dma ? " (dma)" : "", request); if (csr & MUSB_RXCSR_P_SENTSTALL) { - if (dma_channel_status(dma) == MUSB_DMA_STATUS_BUSY) { - dma->status = MUSB_DMA_STATUS_CORE_ABORT; - (void) musb->dma_controller->channel_abort(dma); - request->actual += musb_ep->dma->actual_len; - } - csr |= MUSB_RXCSR_P_WZC_BITS; csr &= ~MUSB_RXCSR_P_SENTSTALL; musb_writew(epio, MUSB_RXCSR, csr); - - if (request) - musb_g_giveback(musb_ep, request, -EPIPE); - goto done; + return; } if (csr & MUSB_RXCSR_P_OVERRUN) { @@ -795,7 +789,7 @@ void musb_g_rx(struct musb *musb, u8 epnum) DBG((csr & MUSB_RXCSR_DMAENAB) ? 4 : 1, "%s busy, csr %04x\n", musb_ep->end_point.name, csr); - goto done; + return; } if (dma && (csr & MUSB_RXCSR_DMAENAB)) { @@ -826,22 +820,15 @@ void musb_g_rx(struct musb *musb, u8 epnum) if ((request->actual < request->length) && (musb_ep->dma->actual_len == musb_ep->packet_sz)) - goto done; + return; #endif musb_g_giveback(musb_ep, request, 0); request = next_request(musb_ep); if (!request) - goto done; - - /* don't start more i/o till the stall clears */ - musb_ep_select(mbase, epnum); - csr = musb_readw(epio, MUSB_RXCSR); - if (csr & MUSB_RXCSR_P_SENDSTALL) - goto done; + return; } - /* analyze request if the ep is hot */ if (request) rxstate(musb, to_musb_request(request)); @@ -849,8 +836,6 @@ void musb_g_rx(struct musb *musb, u8 epnum) DBG(3, "packet waiting for %s%s request\n", musb_ep->desc ? "" : "inactive ", musb_ep->end_point.name); - -done: return; } @@ -1244,7 +1229,7 @@ int musb_gadget_set_halt(struct usb_ep *ep, int value) void __iomem *mbase; unsigned long flags; u16 csr; - struct musb_request *request = NULL; + struct musb_request *request; int status = 0; if (!ep) @@ -1260,24 +1245,29 @@ int musb_gadget_set_halt(struct usb_ep *ep, int value) musb_ep_select(mbase, epnum); - /* cannot portably stall with non-empty FIFO */ request = to_musb_request(next_request(musb_ep)); - if (value && musb_ep->is_in) { - csr = musb_readw(epio, MUSB_TXCSR); - if (csr & MUSB_TXCSR_FIFONOTEMPTY) { - DBG(3, "%s fifo busy, cannot halt\n", ep->name); - spin_unlock_irqrestore(&musb->lock, flags); - return -EAGAIN; + if (value) { + if (request) { + DBG(3, "request in progress, cannot halt %s\n", + ep->name); + status = -EAGAIN; + goto done; + } + /* Cannot portably stall with non-empty FIFO */ + if (musb_ep->is_in) { + csr = musb_readw(epio, MUSB_TXCSR); + if (csr & MUSB_TXCSR_FIFONOTEMPTY) { + DBG(3, "FIFO busy, cannot halt %s\n", ep->name); + status = -EAGAIN; + goto done; + } } - } /* set/clear the stall and toggle bits */ DBG(2, "%s: %s stall\n", ep->name, value ? "set" : "clear"); if (musb_ep->is_in) { csr = musb_readw(epio, MUSB_TXCSR); - if (csr & MUSB_TXCSR_FIFONOTEMPTY) - csr |= MUSB_TXCSR_FLUSHFIFO; csr |= MUSB_TXCSR_P_WZC_BITS | MUSB_TXCSR_CLRDATATOG; if (value) @@ -1300,14 +1290,13 @@ int musb_gadget_set_halt(struct usb_ep *ep, int value) musb_writew(epio, MUSB_RXCSR, csr); } -done: - /* maybe start the first request in the queue */ if (!musb_ep->busy && !value && request) { DBG(3, "restarting the request\n"); musb_ep_restart(musb, request); } +done: spin_unlock_irqrestore(&musb->lock, flags); return status; } diff --git a/drivers/usb/musb/musb_gadget_ep0.c b/drivers/usb/musb/musb_gadget_ep0.c index 7a6778675ad3..522efb31b56b 100644 --- a/drivers/usb/musb/musb_gadget_ep0.c +++ b/drivers/usb/musb/musb_gadget_ep0.c @@ -511,7 +511,8 @@ static void ep0_txstate(struct musb *musb) /* update the flags */ if (fifo_count < MUSB_MAX_END0_PACKET - || request->actual == request->length) { + || (request->actual == request->length + && !request->zero)) { musb->ep0_state = MUSB_EP0_STAGE_STATUSOUT; csr |= MUSB_CSR0_P_DATAEND; } else diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index cf94511485f2..e3ab40a966eb 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -1301,8 +1301,11 @@ void musb_host_tx(struct musb *musb, u8 epnum) return; } else if (usb_pipeisoc(pipe) && dma) { if (musb_tx_dma_program(musb->dma_controller, hw_ep, qh, urb, - offset, length)) + offset, length)) { + if (is_cppi_enabled() || tusb_dma_omap()) + musb_h_tx_dma_start(hw_ep); return; + } } else if (tx_csr & MUSB_TXCSR_DMAENAB) { DBG(1, "not complete, but DMA enabled?\n"); return; diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 9c60d6d4908a..ebcc6d0e2e91 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1937,7 +1937,7 @@ static void ftdi_write_bulk_callback(struct urb *urb) return; } /* account for transferred data */ - countback = urb->actual_length; + countback = urb->transfer_buffer_length; data_offset = priv->write_offset; if (data_offset > 0) { /* Subtract the control bytes */ @@ -1950,7 +1950,6 @@ static void ftdi_write_bulk_callback(struct urb *urb) if (status) { dbg("nonzero write bulk status received: %d", status); - return; } usb_serial_port_softint(port); diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 319aaf9725b3..0577e4b61114 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -336,6 +336,10 @@ static int option_resume(struct usb_serial *serial); #define AIRPLUS_VENDOR_ID 0x1011 #define AIRPLUS_PRODUCT_MCD650 0x3198 +/* 4G Systems products */ +#define FOUR_G_SYSTEMS_VENDOR_ID 0x1c9e +#define FOUR_G_SYSTEMS_PRODUCT_W14 0x9603 + static struct usb_device_id option_ids[] = { { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) }, { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_RICOLA) }, @@ -599,6 +603,7 @@ static struct usb_device_id option_ids[] = { { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S) }, { USB_DEVICE(AIRPLUS_VENDOR_ID, AIRPLUS_PRODUCT_MCD650) }, { USB_DEVICE(TLAYTECH_VENDOR_ID, TLAYTECH_PRODUCT_TEU800) }, + { USB_DEVICE(FOUR_G_SYSTEMS_VENDOR_ID, FOUR_G_SYSTEMS_PRODUCT_W14) }, { } /* Terminating entry */ }; MODULE_DEVICE_TABLE(usb, option_ids); |