diff options
Diffstat (limited to 'drivers/usb')
43 files changed, 500 insertions, 534 deletions
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c index 864f0ba6a344..2473cf0c6b1d 100644 --- a/drivers/usb/class/usbtmc.c +++ b/drivers/usb/class/usbtmc.c @@ -39,7 +39,7 @@ #define USBTMC_SIZE_IOBUFFER 2048 /* Default USB timeout (in milliseconds) */ -#define USBTMC_TIMEOUT 10 +#define USBTMC_TIMEOUT 5000 /* * Maximum number of read cycles to empty bulk in endpoint during CLEAR and diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 33351312327f..a18e3c5dd82e 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -223,6 +223,7 @@ config USB_OTG config USB_GADGET_PXA25X boolean "PXA 25x or IXP 4xx" depends on (ARCH_PXA && PXA25x) || ARCH_IXP4XX + select USB_OTG_UTILS help Intel's PXA 25x series XScale ARM-5TE processors include an integrated full speed USB 1.1 device controller. The diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c index f37de283d0ab..167cb2a8ecef 100644 --- a/drivers/usb/gadget/ether.c +++ b/drivers/usb/gadget/ether.c @@ -61,11 +61,6 @@ * simpler, Microsoft pushes their own approach: RNDIS. The published * RNDIS specs are ambiguous and appear to be incomplete, and are also * needlessly complex. They borrow more from CDC ACM than CDC ECM. - * - * While CDC ECM, CDC Subset, and RNDIS are designed to extend the ethernet - * interface to the target, CDC EEM was designed to use ethernet over the USB - * link between the host and target. CDC EEM is implemented as an alternative - * to those other protocols when that communication model is more appropriate */ #define DRIVER_DESC "Ethernet Gadget" @@ -157,8 +152,8 @@ static inline bool has_rndis(void) #define RNDIS_PRODUCT_NUM 0xa4a2 /* Ethernet/RNDIS Gadget */ /* For EEM gadgets */ -#define EEM_VENDOR_NUM 0x0525 /* INVALID - NEEDS TO BE ALLOCATED */ -#define EEM_PRODUCT_NUM 0xa4a1 /* INVALID - NEEDS TO BE ALLOCATED */ +#define EEM_VENDOR_NUM 0x1d6b /* Linux Foundation */ +#define EEM_PRODUCT_NUM 0x0102 /* EEM Gadget */ /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c index 42a74b8a0bb8..fa3d142ba64d 100644 --- a/drivers/usb/gadget/fsl_udc_core.c +++ b/drivers/usb/gadget/fsl_udc_core.c @@ -2139,7 +2139,7 @@ static int fsl_proc_read(char *page, char **start, off_t off, int count, static void fsl_udc_release(struct device *dev) { complete(udc_controller->done); - dma_free_coherent(dev, udc_controller->ep_qh_size, + dma_free_coherent(dev->parent, udc_controller->ep_qh_size, udc_controller->ep_qh, udc_controller->ep_qh_dma); kfree(udc_controller); } diff --git a/drivers/usb/gadget/imx_udc.c b/drivers/usb/gadget/imx_udc.c index c52a681f376c..01ee0b9bc957 100644 --- a/drivers/usb/gadget/imx_udc.c +++ b/drivers/usb/gadget/imx_udc.c @@ -1402,7 +1402,8 @@ static int __init imx_udc_probe(struct platform_device *pdev) struct clk *clk; void __iomem *base; int ret = 0; - int i, res_size; + int i; + resource_size_t res_size; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { @@ -1416,7 +1417,7 @@ static int __init imx_udc_probe(struct platform_device *pdev) return -ENODEV; } - res_size = res->end - res->start + 1; + res_size = resource_size(res); if (!request_mem_region(res->start, res_size, res->name)) { dev_err(&pdev->dev, "can't allocate %d bytes at %d address\n", res_size, res->start); @@ -1527,8 +1528,7 @@ static int __exit imx_udc_remove(struct platform_device *pdev) clk_disable(imx_usb->clk); iounmap(imx_usb->base); - release_mem_region(imx_usb->res->start, - imx_usb->res->end - imx_usb->res->start + 1); + release_mem_region(imx_usb->res->start, resource_size(imx_usb->res)); if (pdata->exit) pdata->exit(&pdev->dev); diff --git a/drivers/usb/gadget/r8a66597-udc.h b/drivers/usb/gadget/r8a66597-udc.h index 03087e7b9190..9a537aa07968 100644 --- a/drivers/usb/gadget/r8a66597-udc.h +++ b/drivers/usb/gadget/r8a66597-udc.h @@ -131,31 +131,48 @@ static inline u16 r8a66597_read(struct r8a66597 *r8a66597, unsigned long offset) } static inline void r8a66597_read_fifo(struct r8a66597 *r8a66597, - unsigned long offset, u16 *buf, + unsigned long offset, + unsigned char *buf, int len) { + unsigned long fifoaddr = r8a66597->reg + offset; + unsigned int data; + int i; + if (r8a66597->pdata->on_chip) { - unsigned long fifoaddr = r8a66597->reg + offset; - unsigned long count; - union { - unsigned long dword; - unsigned char byte[4]; - } data; - unsigned char *pb; - int i; - - count = len / 4; - insl(fifoaddr, buf, count); - - if (len & 0x00000003) { - data.dword = inl(fifoaddr); - pb = (unsigned char *)buf + count * 4; - for (i = 0; i < (len & 0x00000003); i++) - pb[i] = data.byte[i]; + /* 32-bit accesses for on_chip controllers */ + + /* aligned buf case */ + if (len >= 4 && !((unsigned long)buf & 0x03)) { + insl(fifoaddr, buf, len / 4); + buf += len & ~0x03; + len &= 0x03; + } + + /* unaligned buf case */ + for (i = 0; i < len; i++) { + if (!(i & 0x03)) + data = inl(fifoaddr); + + buf[i] = (data >> ((i & 0x03) * 8)) & 0xff; } } else { - len = (len + 1) / 2; - insw(r8a66597->reg + offset, buf, len); + /* 16-bit accesses for external controllers */ + + /* aligned buf case */ + if (len >= 2 && !((unsigned long)buf & 0x01)) { + insw(fifoaddr, buf, len / 2); + buf += len & ~0x01; + len &= 0x01; + } + + /* unaligned buf case */ + for (i = 0; i < len; i++) { + if (!(i & 0x01)) + data = inw(fifoaddr); + + buf[i] = (data >> ((i & 0x01) * 8)) & 0xff; + } } } @@ -166,38 +183,40 @@ static inline void r8a66597_write(struct r8a66597 *r8a66597, u16 val, } static inline void r8a66597_write_fifo(struct r8a66597 *r8a66597, - unsigned long offset, u16 *buf, + unsigned long offset, + unsigned char *buf, int len) { unsigned long fifoaddr = r8a66597->reg + offset; + int adj = 0; + int i; if (r8a66597->pdata->on_chip) { - unsigned long count; - unsigned char *pb; - int i; - - count = len / 4; - outsl(fifoaddr, buf, count); - - if (len & 0x00000003) { - pb = (unsigned char *)buf + count * 4; - for (i = 0; i < (len & 0x00000003); i++) { - if (r8a66597_read(r8a66597, CFIFOSEL) & BIGEND) - outb(pb[i], fifoaddr + i); - else - outb(pb[i], fifoaddr + 3 - i); - } + /* 32-bit access only if buf is 32-bit aligned */ + if (len >= 4 && !((unsigned long)buf & 0x03)) { + outsl(fifoaddr, buf, len / 4); + buf += len & ~0x03; + len &= 0x03; } } else { - int odd = len & 0x0001; - - len = len / 2; - outsw(fifoaddr, buf, len); - if (unlikely(odd)) { - buf = &buf[len]; - outb((unsigned char)*buf, fifoaddr); + /* 16-bit access only if buf is 16-bit aligned */ + if (len >= 2 && !((unsigned long)buf & 0x01)) { + outsw(fifoaddr, buf, len / 2); + buf += len & ~0x01; + len &= 0x01; } } + + /* adjust fifo address in the little endian case */ + if (!(r8a66597_read(r8a66597, CFIFOSEL) & BIGEND)) { + if (r8a66597->pdata->on_chip) + adj = 0x03; /* 32-bit wide */ + else + adj = 0x01; /* 16-bit wide */ + } + + for (i = 0; i < len; i++) + outb(buf[i], fifoaddr + adj - (i & adj)); } static inline void r8a66597_mdfy(struct r8a66597 *r8a66597, diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index 3ea05936851f..b25cdea93a1f 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -1400,6 +1400,10 @@ iso_stream_schedule ( goto fail; } + period = urb->interval; + if (!stream->highspeed) + period <<= 3; + now = ehci_readl(ehci, &ehci->regs->frame_index) % mod; /* when's the last uframe this urb could start? */ @@ -1417,14 +1421,15 @@ iso_stream_schedule ( /* Fell behind (by up to twice the slop amount)? */ if (start >= max - 2 * 8 * SCHEDULE_SLOP) - start += stream->interval * DIV_ROUND_UP( - max - start, stream->interval) - mod; + start += period * DIV_ROUND_UP( + max - start, period) - mod; /* Tried to schedule too far into the future? */ if (unlikely((start + sched->span) >= max)) { status = -EFBIG; goto fail; } + stream->next_uframe = start; goto ready; } @@ -1440,10 +1445,6 @@ iso_stream_schedule ( /* NOTE: assumes URB_ISO_ASAP, to limit complexity/bugs */ - period = urb->interval; - if (!stream->highspeed) - period <<= 3; - /* find a uframe slot with enough bandwidth */ for (; start < (stream->next_uframe + period); start++) { int enough_space; diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c index e35d82808bab..5c774ab98252 100644 --- a/drivers/usb/host/isp1362-hcd.c +++ b/drivers/usb/host/isp1362-hcd.c @@ -2284,10 +2284,10 @@ static int isp1362_mem_config(struct usb_hcd *hcd) dev_info(hcd->self.controller, "ISP1362 Memory usage:\n"); dev_info(hcd->self.controller, " ISTL: 2 * %4d: %4d @ $%04x:$%04x\n", istl_size / 2, istl_size, 0, istl_size / 2); - dev_info(hcd->self.controller, " INTL: %4d * (%3u+8): %4d @ $%04x\n", + dev_info(hcd->self.controller, " INTL: %4d * (%3lu+8): %4d @ $%04x\n", ISP1362_INTL_BUFFERS, intl_blksize - PTD_HEADER_SIZE, intl_size, istl_size); - dev_info(hcd->self.controller, " ATL : %4d * (%3u+8): %4d @ $%04x\n", + dev_info(hcd->self.controller, " ATL : %4d * (%3lu+8): %4d @ $%04x\n", atl_buffers, atl_blksize - PTD_HEADER_SIZE, atl_size, istl_size + intl_size); dev_info(hcd->self.controller, " USED/FREE: %4d %4d\n", total, @@ -2677,12 +2677,12 @@ static int __devexit isp1362_remove(struct platform_device *pdev) DBG(0, "%s: Removing HCD\n", __func__); usb_remove_hcd(hcd); - DBG(0, "%s: Unmapping data_reg @ %08x\n", __func__, - (u32)isp1362_hcd->data_reg); + DBG(0, "%s: Unmapping data_reg @ %p\n", __func__, + isp1362_hcd->data_reg); iounmap(isp1362_hcd->data_reg); - DBG(0, "%s: Unmapping addr_reg @ %08x\n", __func__, - (u32)isp1362_hcd->addr_reg); + DBG(0, "%s: Unmapping addr_reg @ %p\n", __func__, + isp1362_hcd->addr_reg); iounmap(isp1362_hcd->addr_reg); res = platform_get_resource(pdev, IORESOURCE_MEM, 1); @@ -2810,16 +2810,16 @@ static int __init isp1362_probe(struct platform_device *pdev) return 0; err6: - DBG(0, "%s: Freeing dev %08x\n", __func__, (u32)isp1362_hcd); + DBG(0, "%s: Freeing dev %p\n", __func__, isp1362_hcd); usb_put_hcd(hcd); err5: - DBG(0, "%s: Unmapping data_reg @ %08x\n", __func__, (u32)data_reg); + DBG(0, "%s: Unmapping data_reg @ %p\n", __func__, data_reg); iounmap(data_reg); err4: DBG(0, "%s: Releasing mem region %08lx\n", __func__, (long unsigned int)data->start); release_mem_region(data->start, resource_len(data)); err3: - DBG(0, "%s: Unmapping addr_reg @ %08x\n", __func__, (u32)addr_reg); + DBG(0, "%s: Unmapping addr_reg @ %p\n", __func__, addr_reg); iounmap(addr_reg); err2: DBG(0, "%s: Releasing mem region %08lx\n", __func__, (long unsigned int)addr->start); diff --git a/drivers/usb/host/isp1362.h b/drivers/usb/host/isp1362.h index fe60f62a32f3..1a253ebf7e50 100644 --- a/drivers/usb/host/isp1362.h +++ b/drivers/usb/host/isp1362.h @@ -580,7 +580,7 @@ static inline const char *ISP1362_INT_NAME(int n) static inline void ALIGNSTAT(struct isp1362_hcd *isp1362_hcd, void *ptr) { - unsigned p = (unsigned)ptr; + unsigned long p = (unsigned long)ptr; if (!(p & 0xf)) isp1362_hcd->stat16++; else if (!(p & 0x7)) @@ -770,7 +770,7 @@ static void isp1362_write_fifo(struct isp1362_hcd *isp1362_hcd, void *buf, u16 l if (!len) return; - if ((unsigned)dp & 0x1) { + if ((unsigned long)dp & 0x1) { /* not aligned */ for (; len > 1; len -= 2) { data = *dp++; @@ -962,8 +962,8 @@ static void isp1362_read_buffer(struct isp1362_hcd *isp1362_hcd, void *buf, u16 isp1362_write_diraddr(isp1362_hcd, offset, len); - DBG(3, "%s: Reading %d byte from buffer @%04x to memory @ %08x\n", __func__, - len, offset, (u32)buf); + DBG(3, "%s: Reading %d byte from buffer @%04x to memory @ %p\n", + __func__, len, offset, buf); isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT); _WARN_ON((isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_EOT)); @@ -982,8 +982,8 @@ static void isp1362_write_buffer(struct isp1362_hcd *isp1362_hcd, void *buf, u16 isp1362_write_diraddr(isp1362_hcd, offset, len); - DBG(3, "%s: Writing %d byte to buffer @%04x from memory @ %08x\n", __func__, - len, offset, (u32)buf); + DBG(3, "%s: Writing %d byte to buffer @%04x from memory @ %p\n", + __func__, len, offset, buf); isp1362_write_reg16(isp1362_hcd, HCuPINT, HCuPINT_EOT); _WARN_ON((isp1362_read_reg16(isp1362_hcd, HCuPINT) & HCuPINT_EOT)); diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index 23cf3bde4762..83b5f9cea85a 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -475,4 +475,4 @@ static void __devinit quirk_usb_early_handoff(struct pci_dev *pdev) else if (pdev->class == PCI_CLASS_SERIAL_USB_XHCI) quirk_usb_handoff_xhci(pdev); } -DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, quirk_usb_early_handoff); +DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, quirk_usb_early_handoff); diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c index 749b53742828..e33d36256350 100644 --- a/drivers/usb/host/r8a66597-hcd.c +++ b/drivers/usb/host/r8a66597-hcd.c @@ -1003,19 +1003,20 @@ static void r8a66597_check_syssts(struct r8a66597 *r8a66597, int port, if (syssts == SE0) { r8a66597_write(r8a66597, ~ATTCH, get_intsts_reg(port)); r8a66597_bset(r8a66597, ATTCHE, get_intenb_reg(port)); - return; - } + } else { + if (syssts == FS_JSTS) + r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port)); + else if (syssts == LS_JSTS) + r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port)); - if (syssts == FS_JSTS) - r8a66597_bset(r8a66597, HSE, get_syscfg_reg(port)); - else if (syssts == LS_JSTS) - r8a66597_bclr(r8a66597, HSE, get_syscfg_reg(port)); + r8a66597_write(r8a66597, ~DTCH, get_intsts_reg(port)); + r8a66597_bset(r8a66597, DTCHE, get_intenb_reg(port)); - r8a66597_write(r8a66597, ~DTCH, get_intsts_reg(port)); - r8a66597_bset(r8a66597, DTCHE, get_intenb_reg(port)); + if (r8a66597->bus_suspended) + usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597)); + } - if (r8a66597->bus_suspended) - usb_hcd_resume_root_hub(r8a66597_to_hcd(r8a66597)); + usb_hcd_poll_rh_status(r8a66597_to_hcd(r8a66597)); } /* this function must be called with interrupt disabled */ @@ -1024,6 +1025,8 @@ static void r8a66597_usb_connect(struct r8a66597 *r8a66597, int port) u16 speed = get_rh_usb_speed(r8a66597, port); struct r8a66597_root_hub *rh = &r8a66597->root_hub[port]; + rh->port &= ~((1 << USB_PORT_FEAT_HIGHSPEED) | + (1 << USB_PORT_FEAT_LOWSPEED)); if (speed == HSMODE) rh->port |= (1 << USB_PORT_FEAT_HIGHSPEED); else if (speed == LSMODE) diff --git a/drivers/usb/host/whci/asl.c b/drivers/usb/host/whci/asl.c index c632437c7649..562eba108816 100644 --- a/drivers/usb/host/whci/asl.c +++ b/drivers/usb/host/whci/asl.c @@ -115,6 +115,10 @@ static uint32_t process_qset(struct whc *whc, struct whc_qset *qset) if (status & QTD_STS_HALTED) { /* Ug, an error. */ process_halted_qtd(whc, qset, td); + /* A halted qTD always triggers an update + because the qset was either removed or + reactivated. */ + update |= WHC_UPDATE_UPDATED; goto done; } @@ -305,6 +309,7 @@ int asl_urb_dequeue(struct whc *whc, struct urb *urb, int status) struct whc_urb *wurb = urb->hcpriv; struct whc_qset *qset = wurb->qset; struct whc_std *std, *t; + bool has_qtd = false; int ret; unsigned long flags; @@ -315,17 +320,21 @@ int asl_urb_dequeue(struct whc *whc, struct urb *urb, int status) goto out; list_for_each_entry_safe(std, t, &qset->stds, list_node) { - if (std->urb == urb) + if (std->urb == urb) { + if (std->qtd) + has_qtd = true; qset_free_std(whc, std); - else + } else std->qtd = NULL; /* so this std is re-added when the qset is */ } - asl_qset_remove(whc, qset); - wurb->status = status; - wurb->is_async = true; - queue_work(whc->workqueue, &wurb->dequeue_work); - + if (has_qtd) { + asl_qset_remove(whc, qset); + wurb->status = status; + wurb->is_async = true; + queue_work(whc->workqueue, &wurb->dequeue_work); + } else + qset_remove_urb(whc, qset, urb, status); out: spin_unlock_irqrestore(&whc->lock, flags); diff --git a/drivers/usb/host/whci/pzl.c b/drivers/usb/host/whci/pzl.c index a9e05bac6646..0db3fb2dc03a 100644 --- a/drivers/usb/host/whci/pzl.c +++ b/drivers/usb/host/whci/pzl.c @@ -121,6 +121,10 @@ static enum whc_update pzl_process_qset(struct whc *whc, struct whc_qset *qset) if (status & QTD_STS_HALTED) { /* Ug, an error. */ process_halted_qtd(whc, qset, td); + /* A halted qTD always triggers an update + because the qset was either removed or + reactivated. */ + update |= WHC_UPDATE_UPDATED; goto done; } @@ -333,6 +337,7 @@ int pzl_urb_dequeue(struct whc *whc, struct urb *urb, int status) struct whc_urb *wurb = urb->hcpriv; struct whc_qset *qset = wurb->qset; struct whc_std *std, *t; + bool has_qtd = false; int ret; unsigned long flags; @@ -343,17 +348,22 @@ int pzl_urb_dequeue(struct whc *whc, struct urb *urb, int status) goto out; list_for_each_entry_safe(std, t, &qset->stds, list_node) { - if (std->urb == urb) + if (std->urb == urb) { + if (std->qtd) + has_qtd = true; qset_free_std(whc, std); - else + } else std->qtd = NULL; /* so this std is re-added when the qset is */ } - pzl_qset_remove(whc, qset); - wurb->status = status; - wurb->is_async = false; - queue_work(whc->workqueue, &wurb->dequeue_work); - + if (has_qtd) { + pzl_qset_remove(whc, qset); + update_pzl_hw_view(whc); + wurb->status = status; + wurb->is_async = false; + queue_work(whc->workqueue, &wurb->dequeue_work); + } else + qset_remove_urb(whc, qset, urb, status); out: spin_unlock_irqrestore(&whc->lock, flags); diff --git a/drivers/usb/host/xhci-hcd.c b/drivers/usb/host/xhci-hcd.c index 99911e727e0b..932f99938481 100644 --- a/drivers/usb/host/xhci-hcd.c +++ b/drivers/usb/host/xhci-hcd.c @@ -335,6 +335,12 @@ void xhci_event_ring_work(unsigned long arg) spin_lock_irqsave(&xhci->lock, flags); temp = xhci_readl(xhci, &xhci->op_regs->status); xhci_dbg(xhci, "op reg status = 0x%x\n", temp); + if (temp == 0xffffffff) { + xhci_dbg(xhci, "HW died, polling stopped.\n"); + spin_unlock_irqrestore(&xhci->lock, flags); + return; + } + temp = xhci_readl(xhci, &xhci->ir_set->irq_pending); xhci_dbg(xhci, "ir_set 0 pending = 0x%x\n", temp); xhci_dbg(xhci, "No-op commands handled = %d\n", xhci->noops_handled); @@ -776,6 +782,7 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) { unsigned long flags; int ret; + u32 temp; struct xhci_hcd *xhci; struct xhci_td *td; unsigned int ep_index; @@ -788,6 +795,17 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) ret = usb_hcd_check_unlink_urb(hcd, urb, status); if (ret || !urb->hcpriv) goto done; + temp = xhci_readl(xhci, &xhci->op_regs->status); + if (temp == 0xffffffff) { + xhci_dbg(xhci, "HW died, freeing TD.\n"); + td = (struct xhci_td *) urb->hcpriv; + + usb_hcd_unlink_urb_from_ep(hcd, urb); + spin_unlock_irqrestore(&xhci->lock, flags); + usb_hcd_giveback_urb(xhci_to_hcd(xhci), urb, -ESHUTDOWN); + kfree(td); + return ret; + } xhci_dbg(xhci, "Cancel URB %p\n", urb); xhci_dbg(xhci, "Event ring:\n"); @@ -877,7 +895,7 @@ int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev, ctrl_ctx->drop_flags |= drop_flag; new_drop_flags = ctrl_ctx->drop_flags; - ctrl_ctx->add_flags = ~drop_flag; + ctrl_ctx->add_flags &= ~drop_flag; new_add_flags = ctrl_ctx->add_flags; last_ctx = xhci_last_valid_endpoint(ctrl_ctx->add_flags); @@ -1410,11 +1428,20 @@ void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev) { struct xhci_hcd *xhci = hcd_to_xhci(hcd); unsigned long flags; + u32 state; if (udev->slot_id == 0) return; spin_lock_irqsave(&xhci->lock, flags); + /* Don't disable the slot if the host controller is dead. */ + state = xhci_readl(xhci, &xhci->op_regs->status); + if (state == 0xffffffff) { + xhci_free_virt_device(xhci, udev->slot_id); + spin_unlock_irqrestore(&xhci->lock, flags); + return; + } + if (xhci_queue_slot_control(xhci, TRB_DISABLE_SLOT, udev->slot_id)) { spin_unlock_irqrestore(&xhci->lock, flags); xhci_dbg(xhci, "FIXME: allocate a command ring segment\n"); diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c index 29092b8e59ce..4fb120357c55 100644 --- a/drivers/usb/misc/usblcd.c +++ b/drivers/usb/misc/usblcd.c @@ -313,7 +313,8 @@ static int lcd_probe(struct usb_interface *interface, const struct usb_device_id if (le16_to_cpu(dev->udev->descriptor.idProduct) != 0x0001) { dev_warn(&interface->dev, "USBLCD model not supported.\n"); - return -ENODEV; + retval = -ENODEV; + goto error; } /* set up the endpoint information */ diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig index 803adcb5ac1d..b84abd8ee8a5 100644 --- a/drivers/usb/musb/Kconfig +++ b/drivers/usb/musb/Kconfig @@ -8,8 +8,8 @@ comment "Enable Host or Gadget support to see Inventra options" # (M)HDRC = (Multipoint) Highspeed Dual-Role Controller config USB_MUSB_HDRC - depends on (USB || USB_GADGET) && HAVE_CLK - depends on !SUPERH + depends on (USB || USB_GADGET) + depends on (ARM || BLACKFIN) select NOP_USB_XCEIV if ARCH_DAVINCI select TWL4030_USB if MACH_OMAP_3430SDP select NOP_USB_XCEIV if MACH_OMAP3EVM diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c index f2f66ebc7362..fcec87ea709e 100644 --- a/drivers/usb/musb/blackfin.c +++ b/drivers/usb/musb/blackfin.c @@ -14,7 +14,6 @@ #include <linux/slab.h> #include <linux/init.h> #include <linux/list.h> -#include <linux/clk.h> #include <linux/gpio.h> #include <linux/io.h> diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index 381d648a36b8..6aa5f22e5274 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -95,6 +95,13 @@ struct musb_ep; #endif #endif /* need MUSB gadget selection */ +#ifndef CONFIG_HAVE_CLK +/* Dummy stub for clk framework */ +#define clk_get(dev, id) NULL +#define clk_put(clock) do {} while (0) +#define clk_enable(clock) do {} while (0) +#define clk_disable(clock) do {} while (0) +#endif #ifdef CONFIG_PROC_FS #include <linux/fs.h> diff --git a/drivers/usb/musb/musb_regs.h b/drivers/usb/musb/musb_regs.h index fbfd3fd9ce1f..cc1d71b57d3c 100644 --- a/drivers/usb/musb/musb_regs.h +++ b/drivers/usb/musb/musb_regs.h @@ -439,15 +439,6 @@ static inline void musb_write_txhubport(void __iomem *mbase, u8 epnum, /* Not implemented - HW has seperate Tx/Rx FIFO */ #define MUSB_TXCSR_MODE 0x0000 -/* - * Dummy stub for clk framework, it will be removed - * until Blackfin supports clk framework - */ -#define clk_get(dev, id) NULL -#define clk_put(clock) do {} while (0) -#define clk_enable(clock) do {} while (0) -#define clk_disable(clock) do {} while (0) - static inline void musb_write_txfifosz(void __iomem *mbase, u8 c_size) { } diff --git a/drivers/usb/serial/aircable.c b/drivers/usb/serial/aircable.c index 2cbfab3716e5..b10ac8409411 100644 --- a/drivers/usb/serial/aircable.c +++ b/drivers/usb/serial/aircable.c @@ -554,13 +554,12 @@ static void aircable_throttle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; struct aircable_private *priv = usb_get_serial_port_data(port); - unsigned long flags; dbg("%s - port %d", __func__, port->number); - spin_lock_irqsave(&priv->rx_lock, flags); + spin_lock_irq(&priv->rx_lock); priv->rx_flags |= THROTTLED; - spin_unlock_irqrestore(&priv->rx_lock, flags); + spin_unlock_irq(&priv->rx_lock); } /* Based on ftdi_sio.c unthrottle */ @@ -569,14 +568,13 @@ static void aircable_unthrottle(struct tty_struct *tty) struct usb_serial_port *port = tty->driver_data; struct aircable_private *priv = usb_get_serial_port_data(port); int actually_throttled; - unsigned long flags; dbg("%s - port %d", __func__, port->number); - spin_lock_irqsave(&priv->rx_lock, flags); + spin_lock_irq(&priv->rx_lock); actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED; priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); - spin_unlock_irqrestore(&priv->rx_lock, flags); + spin_unlock_irq(&priv->rx_lock); if (actually_throttled) schedule_work(&priv->rx_work); diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 4a208fe85bc9..698252a4dc5d 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -113,6 +113,7 @@ static struct usb_device_id id_table [] = { { USB_DEVICE(0x166A, 0x0303) }, /* Clipsal 5500PCU C-Bus USB interface */ { USB_DEVICE(0x16D6, 0x0001) }, /* Jablotron serial interface */ { USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */ + { USB_DEVICE(0x413C, 0x9500) }, /* DW700 GPS USB interface */ { } /* Terminating Entry */ }; diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c index e0a8b715f2f2..a591ebec0f89 100644 --- a/drivers/usb/serial/cypress_m8.c +++ b/drivers/usb/serial/cypress_m8.c @@ -1155,13 +1155,12 @@ static void cypress_throttle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; struct cypress_private *priv = usb_get_serial_port_data(port); - unsigned long flags; dbg("%s - port %d", __func__, port->number); - spin_lock_irqsave(&priv->lock, flags); + spin_lock_irq(&priv->lock); priv->rx_flags = THROTTLED; - spin_unlock_irqrestore(&priv->lock, flags); + spin_unlock_irq(&priv->lock); } @@ -1170,14 +1169,13 @@ static void cypress_unthrottle(struct tty_struct *tty) struct usb_serial_port *port = tty->driver_data; struct cypress_private *priv = usb_get_serial_port_data(port); int actually_throttled, result; - unsigned long flags; dbg("%s - port %d", __func__, port->number); - spin_lock_irqsave(&priv->lock, flags); + spin_lock_irq(&priv->lock); actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED; priv->rx_flags = 0; - spin_unlock_irqrestore(&priv->lock, flags); + spin_unlock_irq(&priv->lock); if (!priv->comm_is_ok) return; @@ -1185,7 +1183,7 @@ static void cypress_unthrottle(struct tty_struct *tty) if (actually_throttled) { port->interrupt_in_urb->dev = port->serial->dev; - result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); + result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); if (result) { dev_err(&port->dev, "%s - failed submitting read urb, " "error %d\n", __func__, result); diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index ab3dd991586b..68e80be6b9e1 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -898,16 +898,16 @@ static void digi_rx_unthrottle(struct tty_struct *tty) spin_lock_irqsave(&priv->dp_port_lock, flags); - /* turn throttle off */ - priv->dp_throttled = 0; - priv->dp_throttle_restart = 0; - /* restart read chain */ if (priv->dp_throttle_restart) { port->read_urb->dev = port->serial->dev; ret = usb_submit_urb(port->read_urb, GFP_ATOMIC); } + /* turn throttle off */ + priv->dp_throttled = 0; + priv->dp_throttle_restart = 0; + spin_unlock_irqrestore(&priv->dp_port_lock, flags); if (ret) diff --git a/drivers/usb/serial/empeg.c b/drivers/usb/serial/empeg.c index 33c9e9cf9eb2..7dd0e3eadbe6 100644 --- a/drivers/usb/serial/empeg.c +++ b/drivers/usb/serial/empeg.c @@ -391,7 +391,7 @@ static void empeg_unthrottle(struct tty_struct *tty) dbg("%s - port %d", __func__, port->number); port->read_urb->dev = port->serial->dev; - result = usb_submit_urb(port->read_urb, GFP_ATOMIC); + result = usb_submit_urb(port->read_urb, GFP_KERNEL); if (result) dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index 4f883b1773d0..9c60d6d4908a 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -76,13 +76,7 @@ struct ftdi_private { unsigned long last_dtr_rts; /* saved modem control outputs */ wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */ char prev_status, diff_status; /* Used for TIOCMIWAIT */ - __u8 rx_flags; /* receive state flags (throttling) */ - spinlock_t rx_lock; /* spinlock for receive state */ - struct delayed_work rx_work; struct usb_serial_port *port; - int rx_processed; - unsigned long rx_bytes; - __u16 interface; /* FT2232C, FT2232H or FT4232H port interface (0 for FT232/245) */ @@ -737,10 +731,6 @@ static const char *ftdi_chip_name[] = { /* Constants for read urb and write urb */ #define BUFSZ 512 -/* rx_flags */ -#define THROTTLED 0x01 -#define ACTUALLY_THROTTLED 0x02 - /* Used for TIOCMIWAIT */ #define FTDI_STATUS_B0_MASK (FTDI_RS0_CTS | FTDI_RS0_DSR | FTDI_RS0_RI | FTDI_RS0_RLSD) #define FTDI_STATUS_B1_MASK (FTDI_RS_BI) @@ -763,7 +753,7 @@ static int ftdi_write_room(struct tty_struct *tty); static int ftdi_chars_in_buffer(struct tty_struct *tty); static void ftdi_write_bulk_callback(struct urb *urb); static void ftdi_read_bulk_callback(struct urb *urb); -static void ftdi_process_read(struct work_struct *work); +static void ftdi_process_read(struct usb_serial_port *port); static void ftdi_set_termios(struct tty_struct *tty, struct usb_serial_port *port, struct ktermios *old); static int ftdi_tiocmget(struct tty_struct *tty, struct file *file); @@ -1234,7 +1224,6 @@ static int set_serial_info(struct tty_struct *tty, (new_serial.flags & ASYNC_FLAGS)); priv->custom_divisor = new_serial.custom_divisor; - tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; write_latency_timer(port); check_and_exit: @@ -1527,7 +1516,6 @@ static int ftdi_sio_port_probe(struct usb_serial_port *port) } kref_init(&priv->kref); - spin_lock_init(&priv->rx_lock); spin_lock_init(&priv->tx_lock); init_waitqueue_head(&priv->delta_msr_wait); /* This will push the characters through immediately rather @@ -1549,7 +1537,6 @@ static int ftdi_sio_port_probe(struct usb_serial_port *port) port->read_urb->transfer_buffer_length = BUFSZ; } - INIT_DELAYED_WORK(&priv->rx_work, ftdi_process_read); priv->port = port; /* Free port's existing write urb and transfer buffer. */ @@ -1686,6 +1673,26 @@ static int ftdi_sio_port_remove(struct usb_serial_port *port) return 0; } +static int ftdi_submit_read_urb(struct usb_serial_port *port, gfp_t mem_flags) +{ + struct urb *urb = port->read_urb; + struct usb_serial *serial = port->serial; + int result; + + usb_fill_bulk_urb(urb, serial->dev, + usb_rcvbulkpipe(serial->dev, + port->bulk_in_endpointAddress), + urb->transfer_buffer, + urb->transfer_buffer_length, + ftdi_read_bulk_callback, port); + result = usb_submit_urb(urb, mem_flags); + if (result) + dev_err(&port->dev, + "%s - failed submitting read urb, error %d\n", + __func__, result); + return result; +} + static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port) { /* ftdi_open */ struct usb_device *dev = port->serial->dev; @@ -1700,12 +1707,6 @@ static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port) spin_lock_irqsave(&priv->tx_lock, flags); priv->tx_bytes = 0; spin_unlock_irqrestore(&priv->tx_lock, flags); - spin_lock_irqsave(&priv->rx_lock, flags); - priv->rx_bytes = 0; - spin_unlock_irqrestore(&priv->rx_lock, flags); - - if (tty) - tty->low_latency = (priv->flags & ASYNC_LOW_LATENCY) ? 1 : 0; write_latency_timer(port); @@ -1725,23 +1726,14 @@ static int ftdi_open(struct tty_struct *tty, struct usb_serial_port *port) ftdi_set_termios(tty, port, tty->termios); /* Not throttled */ - spin_lock_irqsave(&priv->rx_lock, flags); - priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); - spin_unlock_irqrestore(&priv->rx_lock, flags); + spin_lock_irqsave(&port->lock, flags); + port->throttled = 0; + port->throttle_req = 0; + spin_unlock_irqrestore(&port->lock, flags); /* Start reading from the device */ - priv->rx_processed = 0; - usb_fill_bulk_urb(port->read_urb, dev, - usb_rcvbulkpipe(dev, port->bulk_in_endpointAddress), - port->read_urb->transfer_buffer, - port->read_urb->transfer_buffer_length, - ftdi_read_bulk_callback, port); - result = usb_submit_urb(port->read_urb, GFP_KERNEL); - if (result) - dev_err(&port->dev, - "%s - failed submitting read urb, error %d\n", - __func__, result); - else + result = ftdi_submit_read_urb(port, GFP_KERNEL); + if (!result) kref_get(&priv->kref); return result; @@ -1787,10 +1779,6 @@ static void ftdi_close(struct usb_serial_port *port) dbg("%s", __func__); - - /* cancel any scheduled reading */ - cancel_delayed_work_sync(&priv->rx_work); - /* shutdown our bulk read */ usb_kill_urb(port->read_urb); kref_put(&priv->kref, ftdi_sio_priv_release); @@ -2013,271 +2001,121 @@ static int ftdi_chars_in_buffer(struct tty_struct *tty) return buffered; } -static void ftdi_read_bulk_callback(struct urb *urb) +static int ftdi_process_packet(struct tty_struct *tty, + struct usb_serial_port *port, struct ftdi_private *priv, + char *packet, int len) { - struct usb_serial_port *port = urb->context; - struct tty_struct *tty; - struct ftdi_private *priv; - unsigned long countread; - unsigned long flags; - int status = urb->status; - - if (urb->number_of_packets > 0) { - dev_err(&port->dev, "%s transfer_buffer_length %d " - "actual_length %d number of packets %d\n", __func__, - urb->transfer_buffer_length, - urb->actual_length, urb->number_of_packets); - dev_err(&port->dev, "%s transfer_flags %x\n", __func__, - urb->transfer_flags); - } + int i; + char status; + char flag; + char *ch; dbg("%s - port %d", __func__, port->number); - if (port->port.count <= 0) - return; - - tty = tty_port_tty_get(&port->port); - if (!tty) { - dbg("%s - bad tty pointer - exiting", __func__); - return; + if (len < 2) { + dbg("malformed packet"); + return 0; } - priv = usb_get_serial_port_data(port); - if (!priv) { - dbg("%s - bad port private data pointer - exiting", __func__); - goto out; + /* Compare new line status to the old one, signal if different/ + N.B. packet may be processed more than once, but differences + are only processed once. */ + status = packet[0] & FTDI_STATUS_B0_MASK; + if (status != priv->prev_status) { + priv->diff_status |= status ^ priv->prev_status; + wake_up_interruptible(&priv->delta_msr_wait); + priv->prev_status = status; } - if (urb != port->read_urb) - dev_err(&port->dev, "%s - Not my urb!\n", __func__); - - if (status) { - /* This will happen at close every time so it is a dbg not an - err */ - dbg("(this is ok on close) nonzero read bulk status received: %d", status); - goto out; + /* + * Although the device uses a bitmask and hence can have multiple + * errors on a packet - the order here sets the priority the error is + * returned to the tty layer. + */ + flag = TTY_NORMAL; + if (packet[1] & FTDI_RS_OE) { + flag = TTY_OVERRUN; + dbg("OVERRRUN error"); + } + if (packet[1] & FTDI_RS_BI) { + flag = TTY_BREAK; + dbg("BREAK received"); + usb_serial_handle_break(port); + } + if (packet[1] & FTDI_RS_PE) { + flag = TTY_PARITY; + dbg("PARITY error"); + } + if (packet[1] & FTDI_RS_FE) { + flag = TTY_FRAME; + dbg("FRAMING error"); } - /* count data bytes, but not status bytes */ - countread = urb->actual_length; - countread -= 2 * DIV_ROUND_UP(countread, priv->max_packet_size); - spin_lock_irqsave(&priv->rx_lock, flags); - priv->rx_bytes += countread; - spin_unlock_irqrestore(&priv->rx_lock, flags); - - ftdi_process_read(&priv->rx_work.work); -out: - tty_kref_put(tty); -} /* ftdi_read_bulk_callback */ - + len -= 2; + if (!len) + return 0; /* status only */ + ch = packet + 2; + + if (!(port->console && port->sysrq) && flag == TTY_NORMAL) + tty_insert_flip_string(tty, ch, len); + else { + for (i = 0; i < len; i++, ch++) { + if (!usb_serial_handle_sysrq_char(tty, port, *ch)) + tty_insert_flip_char(tty, *ch, flag); + } + } + return len; +} -static void ftdi_process_read(struct work_struct *work) -{ /* ftdi_process_read */ - struct ftdi_private *priv = - container_of(work, struct ftdi_private, rx_work.work); - struct usb_serial_port *port = priv->port; - struct urb *urb; +static void ftdi_process_read(struct usb_serial_port *port) +{ + struct urb *urb = port->read_urb; struct tty_struct *tty; - char error_flag; - unsigned char *data; - + struct ftdi_private *priv = usb_get_serial_port_data(port); + char *data = (char *)urb->transfer_buffer; int i; - int result; - int need_flip; - int packet_offset; - unsigned long flags; - - dbg("%s - port %d", __func__, port->number); - - if (port->port.count <= 0) - return; + int len; + int count = 0; tty = tty_port_tty_get(&port->port); - if (!tty) { - dbg("%s - bad tty pointer - exiting", __func__); + if (!tty) return; - } - - priv = usb_get_serial_port_data(port); - if (!priv) { - dbg("%s - bad port private data pointer - exiting", __func__); - goto out; - } - - urb = port->read_urb; - if (!urb) { - dbg("%s - bad read_urb pointer - exiting", __func__); - goto out; - } - - data = urb->transfer_buffer; - if (priv->rx_processed) { - dbg("%s - already processed: %d bytes, %d remain", __func__, - priv->rx_processed, - urb->actual_length - priv->rx_processed); - } else { - /* The first two bytes of every read packet are status */ - if (urb->actual_length > 2) - usb_serial_debug_data(debug, &port->dev, __func__, - urb->actual_length, data); - else - dbg("Status only: %03oo %03oo", data[0], data[1]); + for (i = 0; i < urb->actual_length; i += priv->max_packet_size) { + len = min_t(int, urb->actual_length - i, priv->max_packet_size); + count += ftdi_process_packet(tty, port, priv, &data[i], len); } - - /* TO DO -- check for hung up line and handle appropriately: */ - /* send hangup */ - /* See acm.c - you do a tty_hangup - eg tty_hangup(tty) */ - /* if CD is dropped and the line is not CLOCAL then we should hangup */ - - need_flip = 0; - for (packet_offset = priv->rx_processed; - packet_offset < urb->actual_length; packet_offset += priv->max_packet_size) { - int length; - - /* Compare new line status to the old one, signal if different/ - N.B. packet may be processed more than once, but differences - are only processed once. */ - char new_status = data[packet_offset + 0] & - FTDI_STATUS_B0_MASK; - if (new_status != priv->prev_status) { - priv->diff_status |= - new_status ^ priv->prev_status; - wake_up_interruptible(&priv->delta_msr_wait); - priv->prev_status = new_status; - } - - length = min_t(u32, priv->max_packet_size, urb->actual_length-packet_offset)-2; - if (length < 0) { - dev_err(&port->dev, "%s - bad packet length: %d\n", - __func__, length+2); - length = 0; - } - - if (priv->rx_flags & THROTTLED) { - dbg("%s - throttled", __func__); - break; - } - if (tty_buffer_request_room(tty, length) < length) { - /* break out & wait for throttling/unthrottling to - happen */ - dbg("%s - receive room low", __func__); - break; - } - - /* Handle errors and break */ - error_flag = TTY_NORMAL; - /* Although the device uses a bitmask and hence can have - multiple errors on a packet - the order here sets the - priority the error is returned to the tty layer */ - - if (data[packet_offset+1] & FTDI_RS_OE) { - error_flag = TTY_OVERRUN; - dbg("OVERRRUN error"); - } - if (data[packet_offset+1] & FTDI_RS_BI) { - error_flag = TTY_BREAK; - dbg("BREAK received"); - usb_serial_handle_break(port); - } - if (data[packet_offset+1] & FTDI_RS_PE) { - error_flag = TTY_PARITY; - dbg("PARITY error"); - } - if (data[packet_offset+1] & FTDI_RS_FE) { - error_flag = TTY_FRAME; - dbg("FRAMING error"); - } - if (length > 0) { - for (i = 2; i < length+2; i++) { - /* Note that the error flag is duplicated for - every character received since we don't know - which character it applied to */ - if (!usb_serial_handle_sysrq_char(tty, port, - data[packet_offset + i])) - tty_insert_flip_char(tty, - data[packet_offset + i], - error_flag); - } - need_flip = 1; - } - -#ifdef NOT_CORRECT_BUT_KEEPING_IT_FOR_NOW - /* if a parity error is detected you get status packets forever - until a character is sent without a parity error. - This doesn't work well since the application receives a - never ending stream of bad data - even though new data - hasn't been sent. Therefore I (bill) have taken this out. - However - this might make sense for framing errors and so on - so I am leaving the code in for now. - */ - else { - if (error_flag != TTY_NORMAL) { - dbg("error_flag is not normal"); - /* In this case it is just status - if that is - an error send a bad character */ - if (tty->flip.count >= TTY_FLIPBUF_SIZE) - tty_flip_buffer_push(tty); - tty_insert_flip_char(tty, 0xff, error_flag); - need_flip = 1; - } - } -#endif - } /* "for(packet_offset=0..." */ - - /* Low latency */ - if (need_flip) + if (count) tty_flip_buffer_push(tty); + tty_kref_put(tty); +} - if (packet_offset < urb->actual_length) { - /* not completely processed - record progress */ - priv->rx_processed = packet_offset; - dbg("%s - incomplete, %d bytes processed, %d remain", - __func__, packet_offset, - urb->actual_length - packet_offset); - /* check if we were throttled while processing */ - spin_lock_irqsave(&priv->rx_lock, flags); - if (priv->rx_flags & THROTTLED) { - priv->rx_flags |= ACTUALLY_THROTTLED; - spin_unlock_irqrestore(&priv->rx_lock, flags); - dbg("%s - deferring remainder until unthrottled", - __func__); - goto out; - } - spin_unlock_irqrestore(&priv->rx_lock, flags); - /* if the port is closed stop trying to read */ - if (port->port.count > 0) - /* delay processing of remainder */ - schedule_delayed_work(&priv->rx_work, 1); - else - dbg("%s - port is closed", __func__); - goto out; - } - - /* urb is completely processed */ - priv->rx_processed = 0; +static void ftdi_read_bulk_callback(struct urb *urb) +{ + struct usb_serial_port *port = urb->context; + unsigned long flags; - /* if the port is closed stop trying to read */ - if (port->port.count > 0) { - /* Continue trying to always read */ - usb_fill_bulk_urb(port->read_urb, port->serial->dev, - usb_rcvbulkpipe(port->serial->dev, - port->bulk_in_endpointAddress), - port->read_urb->transfer_buffer, - port->read_urb->transfer_buffer_length, - ftdi_read_bulk_callback, port); + dbg("%s - port %d", __func__, port->number); - result = usb_submit_urb(port->read_urb, GFP_ATOMIC); - if (result) - dev_err(&port->dev, - "%s - failed resubmitting read urb, error %d\n", - __func__, result); + if (urb->status) { + dbg("%s - nonzero read bulk status received: %d", + __func__, urb->status); + return; } -out: - tty_kref_put(tty); -} /* ftdi_process_read */ + usb_serial_debug_data(debug, &port->dev, __func__, + urb->actual_length, urb->transfer_buffer); + ftdi_process_read(port); + + spin_lock_irqsave(&port->lock, flags); + port->throttled = port->throttle_req; + if (!port->throttled) { + spin_unlock_irqrestore(&port->lock, flags); + ftdi_submit_read_urb(port, GFP_ATOMIC); + } else + spin_unlock_irqrestore(&port->lock, flags); +} static void ftdi_break_ctl(struct tty_struct *tty, int break_state) { @@ -2609,33 +2447,31 @@ static int ftdi_ioctl(struct tty_struct *tty, struct file *file, static void ftdi_throttle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; - struct ftdi_private *priv = usb_get_serial_port_data(port); unsigned long flags; dbg("%s - port %d", __func__, port->number); - spin_lock_irqsave(&priv->rx_lock, flags); - priv->rx_flags |= THROTTLED; - spin_unlock_irqrestore(&priv->rx_lock, flags); + spin_lock_irqsave(&port->lock, flags); + port->throttle_req = 1; + spin_unlock_irqrestore(&port->lock, flags); } - -static void ftdi_unthrottle(struct tty_struct *tty) +void ftdi_unthrottle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; - struct ftdi_private *priv = usb_get_serial_port_data(port); - int actually_throttled; + int was_throttled; unsigned long flags; dbg("%s - port %d", __func__, port->number); - spin_lock_irqsave(&priv->rx_lock, flags); - actually_throttled = priv->rx_flags & ACTUALLY_THROTTLED; - priv->rx_flags &= ~(THROTTLED | ACTUALLY_THROTTLED); - spin_unlock_irqrestore(&priv->rx_lock, flags); + spin_lock_irqsave(&port->lock, flags); + was_throttled = port->throttled; + port->throttled = port->throttle_req = 0; + spin_unlock_irqrestore(&port->lock, flags); - if (actually_throttled) - schedule_delayed_work(&priv->rx_work, 0); + /* Resubmit urb if throttled and open. */ + if (was_throttled && test_bit(ASYNCB_INITIALIZED, &port->port.flags)) + ftdi_submit_read_urb(port, GFP_KERNEL); } static int __init ftdi_init(void) diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c index 20432d345529..5ac900e5a50e 100644 --- a/drivers/usb/serial/garmin_gps.c +++ b/drivers/usb/serial/garmin_gps.c @@ -1390,14 +1390,13 @@ static void garmin_throttle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; struct garmin_data *garmin_data_p = usb_get_serial_port_data(port); - unsigned long flags; dbg("%s - port %d", __func__, port->number); /* set flag, data received will be put into a queue for later processing */ - spin_lock_irqsave(&garmin_data_p->lock, flags); + spin_lock_irq(&garmin_data_p->lock); garmin_data_p->flags |= FLAGS_QUEUING|FLAGS_THROTTLED; - spin_unlock_irqrestore(&garmin_data_p->lock, flags); + spin_unlock_irq(&garmin_data_p->lock); } @@ -1405,13 +1404,12 @@ static void garmin_unthrottle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; struct garmin_data *garmin_data_p = usb_get_serial_port_data(port); - unsigned long flags; int status; dbg("%s - port %d", __func__, port->number); - spin_lock_irqsave(&garmin_data_p->lock, flags); + spin_lock_irq(&garmin_data_p->lock); garmin_data_p->flags &= ~FLAGS_THROTTLED; - spin_unlock_irqrestore(&garmin_data_p->lock, flags); + spin_unlock_irq(&garmin_data_p->lock); /* in native mode send queued data to tty, in serial mode nothing needs to be done here */ @@ -1419,7 +1417,7 @@ static void garmin_unthrottle(struct tty_struct *tty) garmin_flush_queue(garmin_data_p); if (0 != (garmin_data_p->flags & FLAGS_BULK_IN_ACTIVE)) { - status = usb_submit_urb(port->read_urb, GFP_ATOMIC); + status = usb_submit_urb(port->read_urb, GFP_KERNEL); if (status) dev_err(&port->dev, "%s - failed resubmitting read urb, error %d\n", diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c index deba08c7a015..bbe005cefcfb 100644 --- a/drivers/usb/serial/generic.c +++ b/drivers/usb/serial/generic.c @@ -546,7 +546,7 @@ void usb_serial_generic_unthrottle(struct tty_struct *tty) if (was_throttled) { /* Resume reading from device */ - usb_serial_generic_resubmit_read_urb(port, GFP_KERNEL); + flush_and_resubmit_read_urb(port); } } diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c index 24fcc64b837d..d6231c38813e 100644 --- a/drivers/usb/serial/ipaq.c +++ b/drivers/usb/serial/ipaq.c @@ -966,6 +966,15 @@ static int ipaq_calc_num_ports(struct usb_serial *serial) static int ipaq_startup(struct usb_serial *serial) { dbg("%s", __func__); + + /* Some of the devices in ipaq_id_table[] are composite, and we + * shouldn't bind to all the interfaces. This test will rule out + * some obviously invalid possibilities. + */ + if (serial->num_bulk_in < serial->num_ports || + serial->num_bulk_out < serial->num_ports) + return -ENODEV; + if (serial->dev->actconfig->desc.bConfigurationValue != 1) { /* * FIXME: HP iPaq rx3715, possibly others, have 1 config that diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c index 257c16cc6b2a..1296a097f5c3 100644 --- a/drivers/usb/serial/keyspan_pda.c +++ b/drivers/usb/serial/keyspan_pda.c @@ -290,7 +290,7 @@ static void keyspan_pda_rx_unthrottle(struct tty_struct *tty) /* just restart the receive interrupt URB */ dbg("keyspan_pda_rx_unthrottle port %d", port->number); port->interrupt_in_urb->dev = port->serial->dev; - if (usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC)) + if (usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL)) dbg(" usb_submit_urb(read urb) failed"); return; } diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c index f7373371b137..3a7873806f46 100644 --- a/drivers/usb/serial/kl5kusb105.c +++ b/drivers/usb/serial/kl5kusb105.c @@ -951,7 +951,7 @@ static void klsi_105_unthrottle(struct tty_struct *tty) dbg("%s - port %d", __func__, port->number); port->read_urb->dev = port->serial->dev; - result = usb_submit_urb(port->read_urb, GFP_ATOMIC); + result = usb_submit_urb(port->read_urb, GFP_KERNEL); if (result) dev_err(&port->dev, "%s - failed submitting read urb, error %d\n", diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c index ad4998bbf16f..cd009cb280a5 100644 --- a/drivers/usb/serial/mct_u232.c +++ b/drivers/usb/serial/mct_u232.c @@ -777,20 +777,19 @@ static void mct_u232_throttle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; struct mct_u232_private *priv = usb_get_serial_port_data(port); - unsigned long flags; unsigned int control_state; dbg("%s - port %d", __func__, port->number); - spin_lock_irqsave(&priv->lock, flags); + spin_lock_irq(&priv->lock); priv->rx_flags |= THROTTLED; if (C_CRTSCTS(tty)) { priv->control_state &= ~TIOCM_RTS; control_state = priv->control_state; - spin_unlock_irqrestore(&priv->lock, flags); + spin_unlock_irq(&priv->lock); (void) mct_u232_set_modem_ctrl(port->serial, control_state); } else { - spin_unlock_irqrestore(&priv->lock, flags); + spin_unlock_irq(&priv->lock); } } @@ -799,20 +798,19 @@ static void mct_u232_unthrottle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; struct mct_u232_private *priv = usb_get_serial_port_data(port); - unsigned long flags; unsigned int control_state; dbg("%s - port %d", __func__, port->number); - spin_lock_irqsave(&priv->lock, flags); + spin_lock_irq(&priv->lock); if ((priv->rx_flags & THROTTLED) && C_CRTSCTS(tty)) { priv->rx_flags &= ~THROTTLED; priv->control_state |= TIOCM_RTS; control_state = priv->control_state; - spin_unlock_irqrestore(&priv->lock, flags); + spin_unlock_irq(&priv->lock); (void) mct_u232_set_modem_ctrl(port->serial, control_state); } else { - spin_unlock_irqrestore(&priv->lock, flags); + spin_unlock_irq(&priv->lock); } } diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c index 1085a577c5c1..80f59b6350cb 100644 --- a/drivers/usb/serial/opticon.c +++ b/drivers/usb/serial/opticon.c @@ -314,21 +314,24 @@ static void opticon_unthrottle(struct tty_struct *tty) struct usb_serial_port *port = tty->driver_data; struct opticon_private *priv = usb_get_serial_data(port->serial); unsigned long flags; - int result; + int result, was_throttled; dbg("%s - port %d", __func__, port->number); spin_lock_irqsave(&priv->lock, flags); priv->throttled = false; + was_throttled = priv->actually_throttled; priv->actually_throttled = false; spin_unlock_irqrestore(&priv->lock, flags); priv->bulk_read_urb->dev = port->serial->dev; - result = usb_submit_urb(priv->bulk_read_urb, GFP_ATOMIC); - if (result) - dev_err(&port->dev, - "%s - failed submitting read urb, error %d\n", + if (was_throttled) { + result = usb_submit_urb(priv->bulk_read_urb, GFP_ATOMIC); + if (result) + dev_err(&port->dev, + "%s - failed submitting read urb, error %d\n", __func__, result); + } } static int opticon_tiocmget(struct tty_struct *tty, struct file *file) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index f66e39883218..cd44c68954df 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -165,6 +165,7 @@ static int option_resume(struct usb_serial *serial); #define HUAWEI_PRODUCT_E143D 0x143D #define HUAWEI_PRODUCT_E143E 0x143E #define HUAWEI_PRODUCT_E143F 0x143F +#define HUAWEI_PRODUCT_E14AC 0x14AC #define QUANTA_VENDOR_ID 0x0408 #define QUANTA_PRODUCT_Q101 0xEA02 @@ -314,10 +315,14 @@ static int option_resume(struct usb_serial *serial); #define QISDA_PRODUCT_H20_4515 0x4515 #define QISDA_PRODUCT_H20_4519 0x4519 +/* TLAYTECH PRODUCTS */ +#define TLAYTECH_VENDOR_ID 0x20B9 +#define TLAYTECH_PRODUCT_TEU800 0x1682 /* TOSHIBA PRODUCTS */ #define TOSHIBA_VENDOR_ID 0x0930 #define TOSHIBA_PRODUCT_HSDPA_MINICARD 0x1302 +#define TOSHIBA_PRODUCT_G450 0x0d45 #define ALINK_VENDOR_ID 0x1e0e #define ALINK_PRODUCT_3GU 0x9200 @@ -326,6 +331,9 @@ static int option_resume(struct usb_serial *serial); #define ALCATEL_VENDOR_ID 0x1bbb #define ALCATEL_PRODUCT_X060S 0x0000 +/* Airplus products */ +#define AIRPLUS_VENDOR_ID 0x1011 +#define AIRPLUS_PRODUCT_MCD650 0x3198 static struct usb_device_id option_ids[] = { { USB_DEVICE(OPTION_VENDOR_ID, OPTION_PRODUCT_COLT) }, @@ -424,6 +432,7 @@ static struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143D, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143E, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E143F, 0xff, 0xff, 0xff) }, + { USB_DEVICE(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_E14AC) }, { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_9508) }, { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V640) }, /* Novatel Merlin V640/XV620 */ { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_V620) }, /* Novatel Merlin V620/S620 */ @@ -581,10 +590,13 @@ static struct usb_device_id option_ids[] = { { USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H21_4523) }, { USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H20_4515) }, { USB_DEVICE(QISDA_VENDOR_ID, QISDA_PRODUCT_H20_4519) }, + { USB_DEVICE(TOSHIBA_VENDOR_ID, TOSHIBA_PRODUCT_G450) }, { USB_DEVICE(TOSHIBA_VENDOR_ID, TOSHIBA_PRODUCT_HSDPA_MINICARD ) }, /* Toshiba 3G HSDPA == Novatel Expedite EU870D MiniCard */ { USB_DEVICE(ALINK_VENDOR_ID, 0x9000) }, { USB_DEVICE_AND_INTERFACE_INFO(ALINK_VENDOR_ID, ALINK_PRODUCT_3GU, 0xff, 0xff, 0xff) }, { USB_DEVICE(ALCATEL_VENDOR_ID, ALCATEL_PRODUCT_X060S) }, + { USB_DEVICE(AIRPLUS_VENDOR_ID, AIRPLUS_PRODUCT_MCD650) }, + { USB_DEVICE(TLAYTECH_VENDOR_ID, TLAYTECH_PRODUCT_TEU800) }, { } /* Terminating entry */ }; MODULE_DEVICE_TABLE(usb, option_ids); diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c index 0f4a70ce3823..c644e26394b4 100644 --- a/drivers/usb/serial/oti6858.c +++ b/drivers/usb/serial/oti6858.c @@ -288,7 +288,7 @@ static void setup_line(struct work_struct *work) dbg("%s(): submitting interrupt urb", __func__); port->interrupt_in_urb->dev = port->serial->dev; - result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); + result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); if (result != 0) { dev_err(&port->dev, "%s(): usb_submit_urb() failed" " with error %d\n", __func__, result); @@ -335,7 +335,7 @@ void send_data(struct work_struct *work) dbg("%s(): submitting interrupt urb", __func__); port->interrupt_in_urb->dev = port->serial->dev; - result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC); + result = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO); if (result != 0) { dev_err(&port->dev, "%s(): usb_submit_urb() failed" " with error %d\n", __func__, result); @@ -349,7 +349,7 @@ void send_data(struct work_struct *work) port->write_urb->transfer_buffer_length = count; port->write_urb->dev = port->serial->dev; - result = usb_submit_urb(port->write_urb, GFP_ATOMIC); + result = usb_submit_urb(port->write_urb, GFP_NOIO); if (result != 0) { dev_err(&port->dev, "%s(): usb_submit_urb() failed" " with error %d\n", __func__, result); diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index 1128e01525b1..9ec1a49e2362 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -1046,13 +1046,15 @@ static void pl2303_push_data(struct tty_struct *tty, /* overrun is special, not associated with a char */ if (line_status & UART_OVERRUN_ERROR) tty_insert_flip_char(tty, 0, TTY_OVERRUN); - if (port->console && port->sysrq) { + + if (tty_flag == TTY_NORMAL && !(port->console && port->sysrq)) + tty_insert_flip_string(tty, data, urb->actual_length); + else { int i; for (i = 0; i < urb->actual_length; ++i) if (!usb_serial_handle_sysrq_char(tty, port, data[i])) tty_insert_flip_char(tty, data[i], tty_flag); - } else - tty_insert_flip_string(tty, data, urb->actual_length); + } tty_flip_buffer_push(tty); } diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index 8c075b2416bb..5019325ba25d 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -17,7 +17,7 @@ Whom based his on the Keyspan driver by Hugh Blemings <hugh@blemings.org> */ -#define DRIVER_VERSION "v.1.3.7" +#define DRIVER_VERSION "v.1.3.8" #define DRIVER_AUTHOR "Kevin Lloyd, Elina Pasheva, Matthew Safar, Rory Filer" #define DRIVER_DESC "USB Driver for Sierra Wireless USB modems" @@ -296,7 +296,6 @@ struct sierra_port_private { int dsr_state; int dcd_state; int ri_state; - unsigned int opened:1; }; @@ -306,6 +305,8 @@ static int sierra_send_setup(struct usb_serial_port *port) struct sierra_port_private *portdata; __u16 interface = 0; int val = 0; + int do_send = 0; + int retval; dev_dbg(&port->dev, "%s\n", __func__); @@ -324,10 +325,7 @@ static int sierra_send_setup(struct usb_serial_port *port) */ if (port->interrupt_in_urb) { /* send control message */ - return usb_control_msg(serial->dev, - usb_rcvctrlpipe(serial->dev, 0), - 0x22, 0x21, val, interface, - NULL, 0, USB_CTRL_SET_TIMEOUT); + do_send = 1; } } @@ -339,12 +337,18 @@ static int sierra_send_setup(struct usb_serial_port *port) interface = 1; else if (port->bulk_out_endpointAddress == 5) interface = 2; - return usb_control_msg(serial->dev, - usb_rcvctrlpipe(serial->dev, 0), - 0x22, 0x21, val, interface, - NULL, 0, USB_CTRL_SET_TIMEOUT); + + do_send = 1; } - return 0; + if (!do_send) + return 0; + + usb_autopm_get_interface(serial->interface); + retval = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), + 0x22, 0x21, val, interface, NULL, 0, USB_CTRL_SET_TIMEOUT); + usb_autopm_put_interface(serial->interface); + + return retval; } static void sierra_set_termios(struct tty_struct *tty, @@ -773,8 +777,11 @@ static void sierra_close(struct usb_serial_port *port) if (serial->dev) { mutex_lock(&serial->disc_mutex); - if (!serial->disconnected) + if (!serial->disconnected) { + serial->interface->needs_remote_wakeup = 0; + usb_autopm_get_interface(serial->interface); sierra_send_setup(port); + } mutex_unlock(&serial->disc_mutex); spin_lock_irq(&intfdata->susp_lock); portdata->opened = 0; @@ -788,8 +795,6 @@ static void sierra_close(struct usb_serial_port *port) sierra_release_urb(portdata->in_urbs[i]); portdata->in_urbs[i] = NULL; } - usb_autopm_get_interface(serial->interface); - serial->interface->needs_remote_wakeup = 0; } } @@ -827,6 +832,8 @@ static int sierra_open(struct tty_struct *tty, struct usb_serial_port *port) if (err) { /* get rid of everything as in close */ sierra_close(port); + /* restore balance for autopm */ + usb_autopm_put_interface(serial->interface); return err; } sierra_send_setup(port); @@ -915,7 +922,7 @@ static void sierra_release(struct usb_serial *serial) #ifdef CONFIG_PM static void stop_read_write_urbs(struct usb_serial *serial) { - int i, j; + int i; struct usb_serial_port *port; struct sierra_port_private *portdata; @@ -923,8 +930,7 @@ static void stop_read_write_urbs(struct usb_serial *serial) for (i = 0; i < serial->num_ports; ++i) { port = serial->port[i]; portdata = usb_get_serial_port_data(port); - for (j = 0; j < N_IN_URB; j++) - usb_kill_urb(portdata->in_urbs[j]); + sierra_stop_rx_urbs(port); usb_kill_anchored_urbs(&portdata->active); } } diff --git a/drivers/usb/serial/symbolserial.c b/drivers/usb/serial/symbolserial.c index cb7e95f9fcbf..b282c0f2d8e5 100644 --- a/drivers/usb/serial/symbolserial.c +++ b/drivers/usb/serial/symbolserial.c @@ -165,34 +165,36 @@ static void symbol_throttle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; struct symbol_private *priv = usb_get_serial_data(port->serial); - unsigned long flags; dbg("%s - port %d", __func__, port->number); - spin_lock_irqsave(&priv->lock, flags); + spin_lock_irq(&priv->lock); priv->throttled = true; - spin_unlock_irqrestore(&priv->lock, flags); + spin_unlock_irq(&priv->lock); } static void symbol_unthrottle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; struct symbol_private *priv = usb_get_serial_data(port->serial); - unsigned long flags; int result; + bool was_throttled; dbg("%s - port %d", __func__, port->number); - spin_lock_irqsave(&priv->lock, flags); + spin_lock_irq(&priv->lock); priv->throttled = false; + was_throttled = priv->actually_throttled; priv->actually_throttled = false; - spin_unlock_irqrestore(&priv->lock, flags); + spin_unlock_irq(&priv->lock); priv->int_urb->dev = port->serial->dev; - result = usb_submit_urb(priv->int_urb, GFP_ATOMIC); - if (result) - dev_err(&port->dev, - "%s - failed submitting read urb, error %d\n", + if (was_throttled) { + result = usb_submit_urb(priv->int_urb, GFP_KERNEL); + if (result) + dev_err(&port->dev, + "%s - failed submitting read urb, error %d\n", __func__, result); + } } static int symbol_startup(struct usb_serial *serial) diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index aa6b2ae951ae..bd3fa7ff15b1 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -156,7 +156,8 @@ static void destroy_serial(struct kref *kref) if (serial->minor != SERIAL_TTY_NO_MINOR) return_serial(serial); - serial->type->release(serial); + if (serial->attached) + serial->type->release(serial); /* Now that nothing is using the ports, they can be freed */ for (i = 0; i < serial->num_port_pointers; ++i) { @@ -1059,12 +1060,15 @@ int usb_serial_probe(struct usb_interface *interface, module_put(type->driver.owner); if (retval < 0) goto probe_error; + serial->attached = 1; if (retval > 0) { /* quietly accept this device, but don't bind to a serial port as it's about to disappear */ serial->num_ports = 0; goto exit; } + } else { + serial->attached = 1; } if (get_free_serial(serial, num_ports, &minor) == NULL) { @@ -1164,8 +1168,10 @@ int usb_serial_suspend(struct usb_interface *intf, pm_message_t message) if (serial->type->suspend) { r = serial->type->suspend(serial, message); - if (r < 0) + if (r < 0) { + serial->suspending = 0; goto err_out; + } } for (i = 0; i < serial->num_ports; ++i) { diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c index 1aa5d20a5d99..ad1f9232292d 100644 --- a/drivers/usb/serial/visor.c +++ b/drivers/usb/serial/visor.c @@ -513,7 +513,8 @@ static void visor_read_bulk_callback(struct urb *urb) tty_kref_put(tty); } spin_lock(&priv->lock); - priv->bytes_in += available_room; + if (tty) + priv->bytes_in += available_room; } else { spin_lock(&priv->lock); @@ -582,12 +583,11 @@ static void visor_throttle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; struct visor_private *priv = usb_get_serial_port_data(port); - unsigned long flags; dbg("%s - port %d", __func__, port->number); - spin_lock_irqsave(&priv->lock, flags); + spin_lock_irq(&priv->lock); priv->throttled = 1; - spin_unlock_irqrestore(&priv->lock, flags); + spin_unlock_irq(&priv->lock); } @@ -595,21 +595,23 @@ static void visor_unthrottle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; struct visor_private *priv = usb_get_serial_port_data(port); - unsigned long flags; - int result; + int result, was_throttled; dbg("%s - port %d", __func__, port->number); - spin_lock_irqsave(&priv->lock, flags); + spin_lock_irq(&priv->lock); priv->throttled = 0; + was_throttled = priv->actually_throttled; priv->actually_throttled = 0; - spin_unlock_irqrestore(&priv->lock, flags); + spin_unlock_irq(&priv->lock); - port->read_urb->dev = port->serial->dev; - result = usb_submit_urb(port->read_urb, GFP_ATOMIC); - if (result) - dev_err(&port->dev, - "%s - failed submitting read urb, error %d\n", + if (was_throttled) { + port->read_urb->dev = port->serial->dev; + result = usb_submit_urb(port->read_urb, GFP_KERNEL); + if (result) + dev_err(&port->dev, + "%s - failed submitting read urb, error %d\n", __func__, result); + } } static int palm_os_3_probe(struct usb_serial *serial, diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c index 62424eec33ec..1093d2eb046a 100644 --- a/drivers/usb/serial/whiteheat.c +++ b/drivers/usb/serial/whiteheat.c @@ -949,13 +949,12 @@ static void whiteheat_throttle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; struct whiteheat_private *info = usb_get_serial_port_data(port); - unsigned long flags; dbg("%s - port %d", __func__, port->number); - spin_lock_irqsave(&info->lock, flags); + spin_lock_irq(&info->lock); info->flags |= THROTTLED; - spin_unlock_irqrestore(&info->lock, flags); + spin_unlock_irq(&info->lock); return; } @@ -966,14 +965,13 @@ static void whiteheat_unthrottle(struct tty_struct *tty) struct usb_serial_port *port = tty->driver_data; struct whiteheat_private *info = usb_get_serial_port_data(port); int actually_throttled; - unsigned long flags; dbg("%s - port %d", __func__, port->number); - spin_lock_irqsave(&info->lock, flags); + spin_lock_irq(&info->lock); actually_throttled = info->flags & ACTUALLY_THROTTLED; info->flags &= ~(THROTTLED | ACTUALLY_THROTTLED); - spin_unlock_irqrestore(&info->lock, flags); + spin_unlock_irq(&info->lock); if (actually_throttled) rx_data_softint(&info->rx_work); diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c index e20dc525d177..589f6b4404f0 100644 --- a/drivers/usb/storage/transport.c +++ b/drivers/usb/storage/transport.c @@ -696,7 +696,7 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us) /* device supports and needs bigger sense buffer */ if (us->fflags & US_FL_SANE_SENSE) sense_size = ~0; - +Retry_Sense: US_DEBUGP("Issuing auto-REQUEST_SENSE\n"); scsi_eh_prep_cmnd(srb, &ses, NULL, 0, sense_size); @@ -720,6 +720,21 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us) srb->result = DID_ABORT << 16; goto Handle_Errors; } + + /* Some devices claim to support larger sense but fail when + * trying to request it. When a transport failure happens + * using US_FS_SANE_SENSE, we always retry with a standard + * (small) sense request. This fixes some USB GSM modems + */ + if (temp_result == USB_STOR_TRANSPORT_FAILED && + (us->fflags & US_FL_SANE_SENSE) && + sense_size != US_SENSE_SIZE) { + US_DEBUGP("-- auto-sense failure, retry small sense\n"); + sense_size = US_SENSE_SIZE; + goto Retry_Sense; + } + + /* Other failures */ if (temp_result != USB_STOR_TRANSPORT_GOOD) { US_DEBUGP("-- auto-sense failure\n"); @@ -768,17 +783,32 @@ void usb_stor_invoke_transport(struct scsi_cmnd *srb, struct us_data *us) /* set the result so the higher layers expect this data */ srb->result = SAM_STAT_CHECK_CONDITION; - /* If things are really okay, then let's show that. Zero - * out the sense buffer so the higher layers won't realize - * we did an unsolicited auto-sense. */ - if (result == USB_STOR_TRANSPORT_GOOD && - /* Filemark 0, ignore EOM, ILI 0, no sense */ + /* We often get empty sense data. This could indicate that + * everything worked or that there was an unspecified + * problem. We have to decide which. + */ + if ( /* Filemark 0, ignore EOM, ILI 0, no sense */ (srb->sense_buffer[2] & 0xaf) == 0 && /* No ASC or ASCQ */ srb->sense_buffer[12] == 0 && srb->sense_buffer[13] == 0) { - srb->result = SAM_STAT_GOOD; - srb->sense_buffer[0] = 0x0; + + /* If things are really okay, then let's show that. + * Zero out the sense buffer so the higher layers + * won't realize we did an unsolicited auto-sense. + */ + if (result == USB_STOR_TRANSPORT_GOOD) { + srb->result = SAM_STAT_GOOD; + srb->sense_buffer[0] = 0x0; + + /* If there was a problem, report an unspecified + * hardware error to prevent the higher layers from + * entering an infinite retry loop. + */ + } else { + srb->result = DID_ERROR << 16; + srb->sense_buffer[2] = HARDWARE_ERROR; + } } } diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 079ae0f7bec1..d4f034ebaa8a 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -1823,6 +1823,13 @@ UNUSUAL_DEV( 0x4102, 0x1020, 0x0100, 0x0100, US_SC_DEVICE, US_PR_DEVICE, NULL, US_FL_IGNORE_RESIDUE ), +/* Reported by Sergey Pinaev <dfo@antex.ru> */ +UNUSUAL_DEV( 0x4102, 0x1059, 0x0000, 0x0000, + "iRiver", + "P7K", + US_SC_DEVICE, US_PR_DEVICE, NULL, + US_FL_MAX_SECTORS_64 ), + /* * David Härdeman <david@2gen.com> * The key makes the SCSI stack print confusing (but harmless) messages diff --git a/drivers/usb/wusbcore/security.c b/drivers/usb/wusbcore/security.c index b2f149fedcc5..4516c36436e6 100644 --- a/drivers/usb/wusbcore/security.c +++ b/drivers/usb/wusbcore/security.c @@ -200,35 +200,40 @@ int wusb_dev_sec_add(struct wusbhc *wusbhc, { int result, bytes, secd_size; struct device *dev = &usb_dev->dev; - struct usb_security_descriptor secd; + struct usb_security_descriptor *secd; const struct usb_encryption_descriptor *etd, *ccm1_etd = NULL; - void *secd_buf; const void *itr, *top; char buf[64]; + secd = kmalloc(sizeof(struct usb_security_descriptor), GFP_KERNEL); + if (secd == NULL) { + result = -ENOMEM; + goto out; + } + result = usb_get_descriptor(usb_dev, USB_DT_SECURITY, - 0, &secd, sizeof(secd)); + 0, secd, sizeof(struct usb_security_descriptor)); if (result < sizeof(secd)) { dev_err(dev, "Can't read security descriptor or " "not enough data: %d\n", result); - goto error_secd; + goto out; } - secd_size = le16_to_cpu(secd.wTotalLength); - secd_buf = kmalloc(secd_size, GFP_KERNEL); - if (secd_buf == NULL) { + secd_size = le16_to_cpu(secd->wTotalLength); + secd = krealloc(secd, secd_size, GFP_KERNEL); + if (secd == NULL) { dev_err(dev, "Can't allocate space for security descriptors\n"); - goto error_secd_alloc; + goto out; } result = usb_get_descriptor(usb_dev, USB_DT_SECURITY, - 0, secd_buf, secd_size); + 0, secd, secd_size); if (result < secd_size) { dev_err(dev, "Can't read security descriptor or " "not enough data: %d\n", result); - goto error_secd_all; + goto out; } bytes = 0; - itr = secd_buf + sizeof(secd); - top = secd_buf + result; + itr = &secd[1]; + top = (void *)secd + result; while (itr < top) { etd = itr; if (top - itr < sizeof(*etd)) { @@ -259,24 +264,16 @@ int wusb_dev_sec_add(struct wusbhc *wusbhc, dev_err(dev, "WUSB device doesn't support CCM1 encryption, " "can't use!\n"); result = -EINVAL; - goto error_no_ccm1; + goto out; } wusb_dev->ccm1_etd = *ccm1_etd; dev_dbg(dev, "supported encryption: %s; using %s (0x%02x/%02x)\n", buf, wusb_et_name(ccm1_etd->bEncryptionType), ccm1_etd->bEncryptionValue, ccm1_etd->bAuthKeyIndex); result = 0; - kfree(secd_buf); out: + kfree(secd); return result; - - -error_no_ccm1: -error_secd_all: - kfree(secd_buf); -error_secd_alloc: -error_secd: - goto out; } void wusb_dev_sec_rm(struct wusb_dev *wusb_dev) |