diff options
Diffstat (limited to 'drivers/usb')
62 files changed, 695 insertions, 471 deletions
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig index cbd8f5f8059..76316a33061 100644 --- a/drivers/usb/Kconfig +++ b/drivers/usb/Kconfig @@ -2,14 +2,6 @@ # USB device configuration # -menuconfig USB_SUPPORT - bool "USB support" - depends on HAS_IOMEM - default y - ---help--- - This option adds core support for Universal Serial Bus (USB). - You will also need drivers from the following menu to make use of it. - # many non-PCI SOC chips embed OHCI config USB_ARCH_HAS_OHCI boolean @@ -63,6 +55,14 @@ config USB_ARCH_HAS_XHCI boolean default PCI +menuconfig USB_SUPPORT + bool "USB support" + depends on HAS_IOMEM + default y + ---help--- + This option adds core support for Universal Serial Bus (USB). + You will also need drivers from the following menu to make use of it. + if USB_SUPPORT config USB_COMMON diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index c6f6560d436..0bb2b3248da 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -157,8 +157,9 @@ static void wdm_out_callback(struct urb *urb) spin_lock(&desc->iuspin); desc->werr = urb->status; spin_unlock(&desc->iuspin); - clear_bit(WDM_IN_USE, &desc->flags); kfree(desc->outbuf); + desc->outbuf = NULL; + clear_bit(WDM_IN_USE, &desc->flags); wake_up(&desc->wait); } @@ -338,7 +339,7 @@ static ssize_t wdm_write if (we < 0) return -EIO; - desc->outbuf = buf = kmalloc(count, GFP_KERNEL); + buf = kmalloc(count, GFP_KERNEL); if (!buf) { rv = -ENOMEM; goto outnl; @@ -406,10 +407,12 @@ static ssize_t wdm_write req->wIndex = desc->inum; req->wLength = cpu_to_le16(count); set_bit(WDM_IN_USE, &desc->flags); + desc->outbuf = buf; rv = usb_submit_urb(desc->command, GFP_KERNEL); if (rv < 0) { kfree(buf); + desc->outbuf = NULL; clear_bit(WDM_IN_USE, &desc->flags); dev_err(&desc->intf->dev, "Tx URB error: %d\n", rv); } else { diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index f8e2d6d52e5..9a56635dc19 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -1189,8 +1189,13 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg) if (status == 0) { status = usb_suspend_device(udev, msg); - /* Again, ignore errors during system sleep transitions */ - if (!PMSG_IS_AUTO(msg)) + /* + * Ignore errors from non-root-hub devices during + * system sleep transitions. For the most part, + * these devices should go to low power anyway when + * the entire bus is suspended. + */ + if (udev->parent && !PMSG_IS_AUTO(msg)) status = 0; } diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c index 622b4a48e73..57ed9e400c0 100644 --- a/drivers/usb/core/hcd-pci.c +++ b/drivers/usb/core/hcd-pci.c @@ -493,6 +493,15 @@ static int hcd_pci_suspend_noirq(struct device *dev) pci_save_state(pci_dev); + /* + * Some systems crash if an EHCI controller is in D3 during + * a sleep transition. We have to leave such controllers in D0. + */ + if (hcd->broken_pci_sleep) { + dev_dbg(dev, "Staying in PCI D0\n"); + return retval; + } + /* If the root hub is dead rather than suspended, disallow remote * wakeup. usb_hc_died() should ensure that both hosts are marked as * dying, so we only need to check the primary roothub. diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c index 9d7fc9a3993..140d3e11f21 100644 --- a/drivers/usb/core/hcd.c +++ b/drivers/usb/core/hcd.c @@ -1978,6 +1978,18 @@ int hcd_bus_suspend(struct usb_device *rhdev, pm_message_t msg) if (status == 0) { usb_set_device_state(rhdev, USB_STATE_SUSPENDED); hcd->state = HC_STATE_SUSPENDED; + + /* Did we race with a root-hub wakeup event? */ + if (rhdev->do_remote_wakeup) { + char buffer[6]; + + status = hcd->driver->hub_status_data(hcd, buffer); + if (status != 0) { + dev_dbg(&rhdev->dev, "suspend raced with wakeup event\n"); + hcd_bus_resume(rhdev, PMSG_AUTO_RESUME); + status = -EBUSY; + } + } } else { spin_lock_irq(&hcd_root_hub_lock); if (!HCD_DEAD(hcd)) { diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 28664eb7f55..ec6c97dadbe 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1667,7 +1667,6 @@ void usb_disconnect(struct usb_device **pdev) { struct usb_device *udev = *pdev; int i; - struct usb_hcd *hcd = bus_to_hcd(udev->bus); /* mark the device as inactive, so any further urb submissions for * this device (and any of its children) will fail immediately. @@ -1690,9 +1689,7 @@ void usb_disconnect(struct usb_device **pdev) * so that the hardware is now fully quiesced. */ dev_dbg (&udev->dev, "unregistering device\n"); - mutex_lock(hcd->bandwidth_mutex); usb_disable_device(udev, 0); - mutex_unlock(hcd->bandwidth_mutex); usb_hcd_synchronize_unlinks(udev); usb_remove_ep_devs(&udev->ep0); @@ -3163,6 +3160,22 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, if (retval) goto fail; + /* + * Some superspeed devices have finished the link training process + * and attached to a superspeed hub port, but the device descriptor + * got from those devices show they aren't superspeed devices. Warm + * reset the port attached by the devices can fix them. + */ + if ((udev->speed == USB_SPEED_SUPER) && + (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0300)) { + dev_err(&udev->dev, "got a wrong device descriptor, " + "warm reset device\n"); + hub_port_reset(hub, port1, udev, + HUB_BH_RESET_TIME, true); + retval = -EINVAL; + goto fail; + } + if (udev->descriptor.bMaxPacketSize0 == 0xff || udev->speed == USB_SPEED_SUPER) i = 512; diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c index cefa0c8b5b6..d2b9af59cba 100644 --- a/drivers/usb/core/inode.c +++ b/drivers/usb/core/inode.c @@ -428,18 +428,10 @@ static loff_t default_file_lseek (struct file *file, loff_t offset, int orig) return retval; } -static int default_open (struct inode *inode, struct file *file) -{ - if (inode->i_private) - file->private_data = inode->i_private; - - return 0; -} - static const struct file_operations default_file_operations = { .read = default_read_file, .write = default_write_file, - .open = default_open, + .open = simple_open, .llseek = default_file_lseek, }; diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index b3bdfede45e..ca717da3be9 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -308,7 +308,8 @@ static void sg_complete(struct urb *urb) retval = usb_unlink_urb(io->urbs [i]); if (retval != -EINPROGRESS && retval != -ENODEV && - retval != -EBUSY) + retval != -EBUSY && + retval != -EIDRM) dev_err(&io->dev->dev, "%s, unlink --> %d\n", __func__, retval); @@ -317,7 +318,6 @@ static void sg_complete(struct urb *urb) } spin_lock(&io->lock); } - urb->dev = NULL; /* on the last completion, signal usb_sg_wait() */ io->bytes += urb->actual_length; @@ -524,7 +524,6 @@ void usb_sg_wait(struct usb_sg_request *io) case -ENXIO: /* hc didn't queue this one */ case -EAGAIN: case -ENOMEM: - io->urbs[i]->dev = NULL; retval = 0; yield(); break; @@ -542,7 +541,6 @@ void usb_sg_wait(struct usb_sg_request *io) /* fail any uncompleted urbs */ default: - io->urbs[i]->dev = NULL; io->urbs[i]->status = retval; dev_dbg(&io->dev->dev, "%s, submit --> %d\n", __func__, retval); @@ -593,7 +591,10 @@ void usb_sg_cancel(struct usb_sg_request *io) if (!io->urbs [i]->dev) continue; retval = usb_unlink_urb(io->urbs [i]); - if (retval != -EINPROGRESS && retval != -EBUSY) + if (retval != -EINPROGRESS + && retval != -ENODEV + && retval != -EBUSY + && retval != -EIDRM) dev_warn(&io->dev->dev, "%s, unlink --> %d\n", __func__, retval); } @@ -1135,8 +1136,6 @@ void usb_disable_interface(struct usb_device *dev, struct usb_interface *intf, * Deallocates hcd/hardware state for the endpoints (nuking all or most * pending urbs) and usbcore state for the interfaces, so that usbcore * must usb_set_configuration() before any interfaces could be used. - * - * Must be called with hcd->bandwidth_mutex held. */ void usb_disable_device(struct usb_device *dev, int skip_ep0) { @@ -1189,7 +1188,9 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0) usb_disable_endpoint(dev, i + USB_DIR_IN, false); } /* Remove endpoints from the host controller internal state */ + mutex_lock(hcd->bandwidth_mutex); usb_hcd_alloc_bandwidth(dev, NULL, NULL, NULL); + mutex_unlock(hcd->bandwidth_mutex); /* Second pass: remove endpoint pointers */ } for (i = skip_ep0; i < 16; ++i) { @@ -1749,7 +1750,6 @@ free_interfaces: /* if it's already configured, clear out old state first. * getting rid of old interfaces means unbinding their drivers. */ - mutex_lock(hcd->bandwidth_mutex); if (dev->state != USB_STATE_ADDRESS) usb_disable_device(dev, 1); /* Skip ep0 */ @@ -1762,6 +1762,7 @@ free_interfaces: * host controller will not allow submissions to dropped endpoints. If * this call fails, the device state is unchanged. */ + mutex_lock(hcd->bandwidth_mutex); ret = usb_hcd_alloc_bandwidth(dev, cp, NULL, NULL); if (ret < 0) { mutex_unlock(hcd->bandwidth_mutex); diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c index 7239a73c1b8..cd9b3a2cd8a 100644 --- a/drivers/usb/core/urb.c +++ b/drivers/usb/core/urb.c @@ -539,6 +539,10 @@ EXPORT_SYMBOL_GPL(usb_submit_urb); * never submitted, or it was unlinked before, or the hardware is already * finished with it), even if the completion handler has not yet run. * + * The URB must not be deallocated while this routine is running. In + * particular, when a driver calls this routine, it must insure that the + * completion handler cannot deallocate the URB. + * * Unlinking and Endpoint Queues: * * [The behaviors and guarantees described below do not apply to virtual @@ -603,6 +607,10 @@ EXPORT_SYMBOL_GPL(usb_unlink_urb); * with error -EPERM. Thus even if the URB's completion handler always * tries to resubmit, it will not succeed and the URB will become idle. * + * The URB must not be deallocated while this routine is running. In + * particular, when a driver calls this routine, it must insure that the + * completion handler cannot deallocate the URB. + * * This routine may not be used in an interrupt context (such as a bottom * half or a completion handler), or when holding a spinlock, or in other * situations where the caller can't schedule(). @@ -640,6 +648,10 @@ EXPORT_SYMBOL_GPL(usb_kill_urb); * with error -EPERM. Thus even if the URB's completion handler always * tries to resubmit, it will not succeed and the URB will become idle. * + * The URB must not be deallocated while this routine is running. In + * particular, when a driver calls this routine, it must insure that the + * completion handler cannot deallocate the URB. + * * This routine may not be used in an interrupt context (such as a bottom * half or a completion handler), or when holding a spinlock, or in other * situations where the caller can't schedule(). diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 7bd815a507e..99b58d84553 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -206,11 +206,11 @@ static void dwc3_free_event_buffers(struct dwc3 *dwc) for (i = 0; i < dwc->num_event_buffers; i++) { evt = dwc->ev_buffs[i]; - if (evt) { + if (evt) dwc3_free_one_event_buffer(dwc, evt); - dwc->ev_buffs[i] = NULL; - } } + + kfree(dwc->ev_buffs); } /** diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 25910e251c0..3584a169886 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -353,6 +353,9 @@ static int dwc3_ep0_handle_feature(struct dwc3 *dwc, dwc->test_mode_nr = wIndex >> 8; dwc->test_mode = true; + break; + default: + return -EINVAL; } break; @@ -559,15 +562,20 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc, length = trb->size & DWC3_TRB_SIZE_MASK; if (dwc->ep0_bounced) { + unsigned transfer_size = ur->length; + unsigned maxp = ep0->endpoint.maxpacket; + + transfer_size += (maxp - (transfer_size % maxp)); transferred = min_t(u32, ur->length, - ep0->endpoint.maxpacket - length); + transfer_size - length); memcpy(ur->buf, dwc->ep0_bounce, transferred); dwc->ep0_bounced = false; } else { transferred = ur->length - length; - ur->actual += transferred; } + ur->actual += transferred; + if ((epnum & 1) && ur->actual < ur->length) { /* for some reason we did not get everything out */ diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index 0c935d7c65b..9d7bcd91007 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -1863,8 +1863,8 @@ static int __devinit at91udc_probe(struct platform_device *pdev) mod_timer(&udc->vbus_timer, jiffies + VBUS_POLL_TIMEOUT); } else { - if (request_irq(udc->board.vbus_pin, at91_vbus_irq, - 0, driver_name, udc)) { + if (request_irq(gpio_to_irq(udc->board.vbus_pin), + at91_vbus_irq, 0, driver_name, udc)) { DBG("request vbus irq %d failed\n", udc->board.vbus_pin); retval = -EBUSY; @@ -1886,7 +1886,7 @@ static int __devinit at91udc_probe(struct platform_device *pdev) return 0; fail4: if (gpio_is_valid(udc->board.vbus_pin) && !udc->board.vbus_polled) - free_irq(udc->board.vbus_pin, udc); + free_irq(gpio_to_irq(udc->board.vbus_pin), udc); fail3: if (gpio_is_valid(udc->board.vbus_pin)) gpio_free(udc->board.vbus_pin); @@ -1924,7 +1924,7 @@ static int __exit at91udc_remove(struct platform_device *pdev) device_init_wakeup(&pdev->dev, 0); remove_debug_file(udc); if (gpio_is_valid(udc->board.vbus_pin)) { - free_irq(udc->board.vbus_pin, udc); + free_irq(gpio_to_irq(udc->board.vbus_pin), udc); gpio_free(udc->board.vbus_pin); } free_irq(udc->udp_irq, udc); diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index a6dfd216416..170cbe89d9f 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -927,7 +927,6 @@ static int dummy_udc_stop(struct usb_gadget *g, dum->driver = NULL; - dummy_pullup(&dum->gadget, 0); return 0; } diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index 1cbba70836b..f52cb1ae45d 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -712,7 +712,7 @@ static long ffs_ep0_ioctl(struct file *file, unsigned code, unsigned long value) if (code == FUNCTIONFS_INTERFACE_REVMAP) { struct ffs_function *func = ffs->func; ret = func ? ffs_func_revmap_intf(func, value) : -ENODEV; - } else if (gadget->ops->ioctl) { + } else if (gadget && gadget->ops->ioctl) { ret = gadget->ops->ioctl(gadget, code, value); } else { ret = -ENOTTY; @@ -1382,6 +1382,7 @@ static void functionfs_unbind(struct ffs_data *ffs) ffs->ep0req = NULL; ffs->gadget = NULL; ffs_data_put(ffs); + clear_bit(FFS_FL_BOUND, &ffs->flags); } } diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index a371e966425..cb8c162cae5 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -2189,7 +2189,7 @@ unknown_cmnd: common->data_size_from_cmnd = 0; sprintf(unknown, "Unknown x%02x", common->cmnd[0]); reply = check_command(common, common->cmnd_size, - DATA_DIR_UNKNOWN, 0xff, 0, unknown); + DATA_DIR_UNKNOWN, ~0, 0, unknown); if (reply == 0) { common->curlun->sense_data = SS_INVALID_COMMAND; reply = -EINVAL; diff --git a/drivers/usb/gadget/f_phonet.c b/drivers/usb/gadget/f_phonet.c index 85a5cebe96b..965a6293206 100644 --- a/drivers/usb/gadget/f_phonet.c +++ b/drivers/usb/gadget/f_phonet.c @@ -345,7 +345,7 @@ static void pn_rx_complete(struct usb_ep *ep, struct usb_request *req) } skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page, - skb->len <= 1, req->actual, req->actual); + skb->len <= 1, req->actual, PAGE_SIZE); page = NULL; if (req->actual < req->length) { /* Last fragment */ diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c index 7b1cf18df5e..52343654f5d 100644 --- a/drivers/usb/gadget/f_rndis.c +++ b/drivers/usb/gadget/f_rndis.c @@ -500,6 +500,7 @@ rndis_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl) if (buf) { memcpy(req->buf, buf, n); req->complete = rndis_response_complete; + req->context = rndis; rndis_free_response(rndis->config, buf); value = n; } diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c index 4fac5692774..a896d73f7a9 100644 --- a/drivers/usb/gadget/file_storage.c +++ b/drivers/usb/gadget/file_storage.c @@ -2579,7 +2579,7 @@ static int do_scsi_command(struct fsg_dev *fsg) fsg->data_size_from_cmnd = 0; sprintf(unknown, "Unknown x%02x", fsg->cmnd[0]); if ((reply = check_command(fsg, fsg->cmnd_size, - DATA_DIR_UNKNOWN, 0xff, 0, unknown)) == 0) { + DATA_DIR_UNKNOWN, ~0, 0, unknown)) == 0) { fsg->curlun->sense_data = SS_INVALID_COMMAND; reply = -EINVAL; } diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c index 5f94e79cd6b..55abfb6bd61 100644 --- a/drivers/usb/gadget/fsl_udc_core.c +++ b/drivers/usb/gadget/fsl_udc_core.c @@ -730,7 +730,7 @@ static void fsl_queue_td(struct fsl_ep *ep, struct fsl_req *req) : (1 << (ep_index(ep))); /* check if the pipe is empty */ - if (!(list_empty(&ep->queue))) { + if (!(list_empty(&ep->queue)) && !(ep_index(ep) == 0)) { /* Add td to the end */ struct fsl_req *lastreq; lastreq = list_entry(ep->queue.prev, struct fsl_req, queue); @@ -918,10 +918,6 @@ fsl_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) return -ENOMEM; } - /* Update ep0 state */ - if ((ep_index(ep) == 0)) - udc->ep0_state = DATA_STATE_XMIT; - /* irq handler advances the queue */ if (req != NULL) list_add_tail(&req->queue, &ep->queue); @@ -1279,7 +1275,8 @@ static int ep0_prime_status(struct fsl_udc *udc, int direction) udc->ep0_dir = USB_DIR_OUT; ep = &udc->eps[0]; - udc->ep0_state = WAIT_FOR_OUT_STATUS; + if (udc->ep0_state != DATA_STATE_XMIT) + udc->ep0_state = WAIT_FOR_OUT_STATUS; req->ep = ep; req->req.length = 0; @@ -1384,6 +1381,9 @@ static void ch9getstatus(struct fsl_udc *udc, u8 request_type, u16 value, list_add_tail(&req->queue, &ep->queue); udc->ep0_state = DATA_STATE_XMIT; + if (ep0_prime_status(udc, EP_DIR_OUT)) + ep0stall(udc); + return; stall: ep0stall(udc); @@ -1492,6 +1492,14 @@ static void setup_received_irq(struct fsl_udc *udc, spin_lock(&udc->lock); udc->ep0_state = (setup->bRequestType & USB_DIR_IN) ? DATA_STATE_XMIT : DATA_STATE_RECV; + /* + * If the data stage is IN, send status prime immediately. + * See 2.0 Spec chapter 8.5.3.3 for detail. + */ + if (udc->ep0_state == DATA_STATE_XMIT) + if (ep0_prime_status(udc, EP_DIR_OUT)) + ep0stall(udc); + } else { /* No data phase, IN status from gadget */ udc->ep0_dir = USB_DIR_IN; @@ -1520,9 +1528,8 @@ static void ep0_req_complete(struct fsl_udc *udc, struct fsl_ep *ep0, switch (udc->ep0_state) { case DATA_STATE_XMIT: - /* receive status phase */ - if (ep0_prime_status(udc, EP_DIR_OUT)) - ep0stall(udc); + /* already primed at setup_received_irq */ + udc->ep0_state = WAIT_FOR_OUT_STATUS; break; case DATA_STATE_RECV: /* send status phase */ diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c index 331cd6729d3..a85eaf40b94 100644 --- a/drivers/usb/gadget/g_ffs.c +++ b/drivers/usb/gadget/g_ffs.c @@ -161,7 +161,7 @@ static struct usb_composite_driver gfs_driver = { static struct ffs_data *gfs_ffs_data; static unsigned long gfs_registered; -static int gfs_init(void) +static int __init gfs_init(void) { ENTER(); @@ -169,7 +169,7 @@ static int gfs_init(void) } module_init(gfs_init); -static void gfs_exit(void) +static void __exit gfs_exit(void) { ENTER(); diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c index 8793f32bab1..e58b1644297 100644 --- a/drivers/usb/gadget/inode.c +++ b/drivers/usb/gadget/inode.c @@ -1574,7 +1574,6 @@ static void destroy_ep_files (struct dev_data *dev) DBG (dev, "%s %d\n", __func__, dev->state); /* dev->state must prevent interference */ -restart: spin_lock_irq (&dev->lock); while (!list_empty(&dev->epfiles)) { struct ep_data *ep; diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 69295ba9d99..105b206cd84 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -340,7 +340,7 @@ static void s3c_hsotg_init_fifo(struct s3c_hsotg *hsotg) /* currently we allocate TX FIFOs for all possible endpoints, * and assume that they are all the same size. */ - for (ep = 0; ep <= 15; ep++) { + for (ep = 1; ep <= 15; ep++) { val = addr; val |= size << S3C_DPTXFSIZn_DPTxFSize_SHIFT; addr += size; @@ -741,7 +741,7 @@ static void s3c_hsotg_start_req(struct s3c_hsotg *hsotg, /* write size / packets */ writel(epsize, hsotg->regs + epsize_reg); - if (using_dma(hsotg)) { + if (using_dma(hsotg) && !continuing) { unsigned int dma_reg; /* write DMA address to control register, buffer already @@ -1696,10 +1696,12 @@ static void s3c_hsotg_set_ep_maxpacket(struct s3c_hsotg *hsotg, reg |= mpsval; writel(reg, regs + S3C_DIEPCTL(ep)); - reg = readl(regs + S3C_DOEPCTL(ep)); - reg &= ~S3C_DxEPCTL_MPS_MASK; - reg |= mpsval; - writel(reg, regs + S3C_DOEPCTL(ep)); + if (ep) { + reg = readl(regs + S3C_DOEPCTL(ep)); + reg &= ~S3C_DxEPCTL_MPS_MASK; + reg |= mpsval; + writel(reg, regs + S3C_DOEPCTL(ep)); + } return; @@ -1919,7 +1921,8 @@ static void s3c_hsotg_epint(struct s3c_hsotg *hsotg, unsigned int idx, ints & S3C_DIEPMSK_TxFIFOEmpty) { dev_dbg(hsotg->dev, "%s: ep%d: TxFIFOEmpty\n", __func__, idx); - s3c_hsotg_trytx(hsotg, hs_ep); + if (!using_dma(hsotg)) + s3c_hsotg_trytx(hsotg, hs_ep); } } } diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c index 56da49f31d6..e5e44f8cde9 100644 --- a/drivers/usb/gadget/udc-core.c +++ b/drivers/usb/gadget/udc-core.c @@ -263,9 +263,9 @@ static void usb_gadget_remove_driver(struct usb_udc *udc) if (udc_is_newstyle(udc)) { udc->driver->disconnect(udc->gadget); + usb_gadget_disconnect(udc->gadget); udc->driver->unbind(udc->gadget); usb_gadget_udc_stop(udc->gadget, udc->driver); - usb_gadget_disconnect(udc->gadget); } else { usb_gadget_stop(udc->gadget, udc->driver); } @@ -411,9 +411,13 @@ static ssize_t usb_udc_softconn_store(struct device *dev, struct usb_udc *udc = container_of(dev, struct usb_udc, dev); if (sysfs_streq(buf, "connect")) { + if (udc_is_newstyle(udc)) + usb_gadget_udc_start(udc->gadget, udc->driver); usb_gadget_connect(udc->gadget); } else if (sysfs_streq(buf, "disconnect")) { usb_gadget_disconnect(udc->gadget); + if (udc_is_newstyle(udc)) + usb_gadget_udc_stop(udc->gadget, udc->driver); } else { dev_err(dev, "unsupported command '%s'\n", buf); return -EINVAL; diff --git a/drivers/usb/gadget/uvc.h b/drivers/usb/gadget/uvc.h index bc78c606c12..ca4e03a1c73 100644 --- a/drivers/usb/gadget/uvc.h +++ b/drivers/usb/gadget/uvc.h @@ -28,7 +28,7 @@ struct uvc_request_data { - unsigned int length; + __s32 length; __u8 data[60]; }; diff --git a/drivers/usb/gadget/uvc_queue.c b/drivers/usb/gadget/uvc_queue.c index d776adb2da6..0cdf89d32a1 100644 --- a/drivers/usb/gadget/uvc_queue.c +++ b/drivers/usb/gadget/uvc_queue.c @@ -543,11 +543,11 @@ done: return ret; } +/* called with queue->irqlock held.. */ static struct uvc_buffer * uvc_queue_next_buffer(struct uvc_video_queue *queue, struct uvc_buffer *buf) { struct uvc_buffer *nextbuf; - unsigned long flags; if ((queue->flags & UVC_QUEUE_DROP_INCOMPLETE) && buf->buf.length != buf->buf.bytesused) { @@ -556,14 +556,12 @@ uvc_queue_next_buffer(struct uvc_video_queue *queue, struct uvc_buffer *buf) return buf; } - spin_lock_irqsave(&queue->irqlock, flags); list_del(&buf->queue); if (!list_empty(&queue->irqqueue)) nextbuf = list_first_entry(&queue->irqqueue, struct uvc_buffer, queue); else nextbuf = NULL; - spin_unlock_irqrestore(&queue->irqlock, flags); buf->buf.sequence = queue->sequence++; do_gettimeofday(&buf->buf.timestamp); diff --git a/drivers/usb/gadget/uvc_v4l2.c b/drivers/usb/gadget/uvc_v4l2.c index f6e083b5019..54d7ca559cb 100644 --- a/drivers/usb/gadget/uvc_v4l2.c +++ b/drivers/usb/gadget/uvc_v4l2.c @@ -39,7 +39,7 @@ uvc_send_response(struct uvc_device *uvc, struct uvc_request_data *data) if (data->length < 0) return usb_ep_set_halt(cdev->gadget->ep0); - req->length = min(uvc->event_length, data->length); + req->length = min_t(unsigned int, uvc->event_length, data->length); req->zero = data->length < uvc->event_length; req->dma = DMA_ADDR_INVALID; diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c index 19f318ababa..cf14c95a670 100644 --- a/drivers/usb/host/ehci-atmel.c +++ b/drivers/usb/host/ehci-atmel.c @@ -13,6 +13,7 @@ #include <linux/clk.h> #include <linux/platform_device.h> +#include <linux/of.h> #include <linux/of_platform.h> /* interface and function clocks */ diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index fd9109d7eb0..680e1a31fb8 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c @@ -352,7 +352,6 @@ static int debug_async_open(struct inode *, struct file *); static int debug_periodic_open(struct inode *, struct file *); static int debug_registers_open(struct inode *, struct file *); static int debug_async_open(struct inode *, struct file *); -static int debug_lpm_open(struct inode *, struct file *); static ssize_t debug_lpm_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos); static ssize_t debug_lpm_write(struct file *file, const char __user *buffer, @@ -385,7 +384,7 @@ static const struct file_operations debug_registers_fops = { }; static const struct file_operations debug_lpm_fops = { .owner = THIS_MODULE, - .open = debug_lpm_open, + .open = simple_open, .read = debug_lpm_read, .write = debug_lpm_write, .release = debug_lpm_close, @@ -970,12 +969,6 @@ static int debug_registers_open(struct inode *inode, struct file *file) return file->private_data ? 0 : -ENOMEM; } -static int debug_lpm_open(struct inode *inode, struct file *file) -{ - file->private_data = inode->i_private; - return 0; -} - static int debug_lpm_close(struct inode *inode, struct file *file) { return 0; diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index 3e7345172e0..d0a84bd3f3e 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -218,6 +218,9 @@ static void ehci_fsl_setup_phy(struct ehci_hcd *ehci, u32 portsc; struct usb_hcd *hcd = ehci_to_hcd(ehci); void __iomem *non_ehci = hcd->regs; + struct fsl_usb2_platform_data *pdata; + + pdata = hcd->self.controller->platform_data; portsc = ehci_readl(ehci, &ehci->regs->port_status[port_offset]); portsc &= ~(PORT_PTS_MSK | PORT_PTS_PTW); @@ -234,7 +237,9 @@ static void ehci_fsl_setup_phy(struct ehci_hcd *ehci, /* fall through */ case FSL_USB2_PHY_UTMI: /* enable UTMI PHY */ - setbits32(non_ehci + FSL_SOC_USB_CTRL, CTRL_UTMI_PHY_EN); + if (pdata->have_sysif_regs) + setbits32(non_ehci + FSL_SOC_USB_CTRL, + CTRL_UTMI_PHY_EN); portsc |= PORT_PTS_UTMI; break; case FSL_USB2_PHY_NONE: diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 057cdda7a48..4a3bc5b7a06 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -347,6 +347,8 @@ static int ehci_reset (struct ehci_hcd *ehci) if (ehci->debug) dbgp_external_startup(); + ehci->port_c_suspend = ehci->suspended_ports = + ehci->resuming_ports = 0; return retval; } @@ -856,8 +858,13 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) goto dead; } + /* + * We don't use STS_FLR, but some controllers don't like it to + * remain on, so mask it out along with the other status bits. + */ + masked_status = status & (INTR_MASK | STS_FLR); + /* Shared IRQ? */ - masked_status = status & INTR_MASK; if (!masked_status || unlikely(ehci->rh_state == EHCI_RH_HALTED)) { spin_unlock(&ehci->lock); return IRQ_NONE; @@ -908,7 +915,7 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) pcd_status = status; /* resume root hub? */ - if (!(cmd & CMD_RUN)) + if (ehci->rh_state == EHCI_RH_SUSPENDED) usb_hcd_resume_root_hub(hcd); /* get per-port change detect bits */ @@ -939,6 +946,7 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) * like usb_port_resume() does. */ ehci->reset_done[i] = jiffies + msecs_to_jiffies(25); + set_bit(i, &ehci->resuming_ports); ehci_dbg (ehci, "port %d remote wakeup\n", i + 1); mod_timer(&hcd->rh_timer, ehci->reset_done[i]); } diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index 256fbd42e48..38fe0762315 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -223,15 +223,10 @@ static int ehci_bus_suspend (struct usb_hcd *hcd) * remote wakeup, we must fail the suspend. */ if (hcd->self.root_hub->do_remote_wakeup) { - port = HCS_N_PORTS(ehci->hcs_params); - while (port--) { - if (ehci->reset_done[port] != 0) { - spin_unlock_irq(&ehci->lock); - ehci_dbg(ehci, "suspend failed because " - "port %d is resuming\n", - port + 1); - return -EBUSY; - } + if (ehci->resuming_ports) { + spin_unlock_irq(&ehci->lock); + ehci_dbg(ehci, "suspend failed because a port is resuming\n"); + return -EBUSY; } } @@ -554,16 +549,12 @@ static int ehci_hub_status_data (struct usb_hcd *hcd, char *buf) { struct ehci_hcd *ehci = hcd_to_ehci (hcd); - u32 temp, status = 0; + u32 temp, status; u32 mask; int ports, i, retval = 1; unsigned long flags; u32 ppcd = 0; - /* if !USB_SUSPEND, root hub timers won't get shut down ... */ - if (ehci->rh_state != EHCI_RH_RUNNING) - return 0; - /* init status to no-changes */ buf [0] = 0; ports = HCS_N_PORTS (ehci->hcs_params); @@ -572,6 +563,11 @@ ehci_hub_status_data (struct usb_hcd *hcd, char *buf) retval++; } + /* Inform the core about resumes-in-progress by returning + * a non-zero value even if there are no status changes. + */ + status = ehci->resuming_ports; + /* Some boards (mostly VIA?) report bogus overcurrent indications, * causing massive log spam unless we completely ignore them. It * may be relevant that VIA VT8235 controllers, where PORT_POWER is @@ -846,6 +842,7 @@ static int ehci_hub_control ( ehci_writel(ehci, temp & ~(PORT_RWC_BITS | PORT_RESUME), status_reg); + clear_bit(wIndex, &ehci->resuming_ports); retval = handshake(ehci, status_reg, PORT_RESUME, 0, 2000 /* 2msec */); if (retval != 0) { @@ -864,6 +861,7 @@ static int ehci_hub_control ( ehci->reset_done[wIndex])) { status |= USB_PORT_STAT_C_RESET << 16; ehci->reset_done [wIndex] = 0; + clear_bit(wIndex, &ehci->resuming_ports); /* force reset to complete */ ehci_writel(ehci, temp & ~(PORT_RWC_BITS | PORT_RESET), @@ -884,8 +882,10 @@ static int ehci_hub_control ( ehci_readl(ehci, status_reg)); } - if (!(temp & (PORT_RESUME|PORT_RESET))) + if (!(temp & (PORT_RESUME|PORT_RESET))) { ehci->reset_done[wIndex] = 0; + clear_bit(wIndex, &ehci->resuming_ports); + } /* transfer dedicated ports to the companion hc */ if ((temp & PORT_CONNECT) && @@ -920,6 +920,7 @@ static int ehci_hub_control ( status |= USB_PORT_STAT_SUSPEND; } else if (test_bit(wIndex, &ehci->suspended_ports)) { clear_bit(wIndex, &ehci->suspended_ports); + clear_bit(wIndex, &ehci->resuming_ports); ehci->reset_done[wIndex] = 0; if (temp & PORT_PE) set_bit(wIndex, &ehci->port_c_suspend); diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index bba9850f32f..5c78f9e7146 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -42,6 +42,7 @@ #include <plat/usb.h> #include <linux/regulator/consumer.h> #include <linux/pm_runtime.h> +#include <linux/gpio.h> /* EHCI Register Set */ #define EHCI_INSNREG04 (0xA0) @@ -191,6 +192,19 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) } } + if (pdata->phy_reset) { + if (gpio_is_valid(pdata->reset_gpio_port[0])) + gpio_request_one(pdata->reset_gpio_port[0], + GPIOF_OUT_INIT_LOW, "USB1 PHY reset"); + + if (gpio_is_valid(pdata->reset_gpio_port[1])) + gpio_request_one(pdata->reset_gpio_port[1], + GPIOF_OUT_INIT_LOW, "USB2 PHY reset"); + + /* Hold the PHY in RESET for enough time till DIR is high */ + udelay(10); + } + pm_runtime_enable(dev); pm_runtime_get_sync(dev); @@ -237,6 +251,19 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) /* root ports should always stay powered */ ehci_port_power(omap_ehci, 1); + if (pdata->phy_reset) { + /* Hold the PHY in RESET for enough time till + * PHY is settled and ready + */ + udelay(10); + + if (gpio_is_valid(pdata->reset_gpio_port[0])) + gpio_set_value(pdata->reset_gpio_port[0], 1); + + if (gpio_is_valid(pdata->reset_gpio_port[1])) + gpio_set_value(pdata->reset_gpio_port[1], 1); + } + return 0; err_add_hcd: @@ -259,8 +286,9 @@ err_io: */ static int ehci_hcd_omap_remove(struct platform_device *pdev) { - struct device *dev = &pdev->dev; - struct usb_hcd *hcd = dev_get_drvdata(dev); + struct device *dev = &pdev->dev; + struct usb_hcd *hcd = dev_get_drvdata(dev); + struct ehci_hcd_omap_platform_data *pdata = dev->platform_data; usb_remove_hcd(hcd); disable_put_regulator(dev->platform_data); @@ -269,6 +297,13 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev) pm_runtime_put_sync(dev); pm_runtime_disable(dev); + if (pdata->phy_reset) { + if (gpio_is_valid(pdata->reset_gpio_port[0])) + gpio_free(pdata->reset_gpio_port[0]); + + if (gpio_is_valid(pdata->reset_gpio_port[1])) + gpio_free(pdata->reset_gpio_port[1]); + } return 0; } diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index 01bb7241d6e..fe8dc069164 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -144,6 +144,14 @@ static int ehci_pci_setup(struct usb_hcd *hcd) hcd->has_tt = 1; tdi_reset(ehci); } + if (pdev->subsystem_vendor == PCI_VENDOR_ID_ASUSTEK) { + /* EHCI #1 or #2 on 6 Series/C200 Series chipset */ + if (pdev->device == 0x1c26 || pdev->device == 0x1c2d) { + ehci_info(ehci, "broken D3 during system sleep on ASUS\n"); + hcd->broken_pci_sleep = 1; + device_set_wakeup_capable(&pdev->dev, false); + } + } break; case PCI_VENDOR_ID_TDI: if (pdev->device == PCI_DEVICE_ID_TDI_EHCI) { diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 3de48a2d795..f214a80cdee 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -24,6 +24,7 @@ #include <linux/gpio.h> #include <linux/of.h> #include <linux/of_gpio.h> +#include <linux/pm_runtime.h> #include <mach/usb_phy.h> #include <mach/iomap.h> @@ -37,9 +38,7 @@ struct tegra_ehci_hcd { struct clk *emc_clk; struct usb_phy *transceiver; int host_resumed; - int bus_suspended; int port_resuming; - int power_down_on_bus_suspend; enum tegra_usb_phy_port_speed port_speed; }; @@ -224,6 +223,7 @@ static int tegra_ehci_hub_control( temp &= ~(PORT_RWC_BITS | PORT_WAKE_BITS); /* start resume signalling */ ehci_writel(ehci, temp | PORT_RESUME, status_reg); + set_bit(wIndex-1, &ehci->resuming_ports); spin_unlock_irqrestore(&ehci->lock, flags); msleep(20); @@ -236,6 +236,7 @@ static int tegra_ehci_hub_control( pr_err("%s: timeout waiting for SUSPEND\n", __func__); ehci->reset_done[wIndex-1] = 0; + clear_bit(wIndex-1, &ehci->resuming_ports); tegra->port_resuming = 1; goto done; @@ -271,120 +272,6 @@ static void tegra_ehci_restart(struct usb_hcd *hcd) up_write(&ehci_cf_port_reset_rwsem); } -static int tegra_usb_suspend(struct usb_hcd *hcd) -{ - struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller); - struct ehci_regs __iomem *hw = tegra->ehci->regs; - unsigned long flags; - - spin_lock_irqsave(&tegra->ehci->lock, flags); - - tegra->port_speed = (readl(&hw->port_status[0]) >> 26) & 0x3; - ehci_halt(tegra->ehci); - clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); - - spin_unlock_irqrestore(&tegra->ehci->lock, flags); - - tegra_ehci_power_down(hcd); - return 0; -} - -static int tegra_usb_resume(struct usb_hcd *hcd) -{ - struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller); - struct ehci_hcd *ehci = hcd_to_ehci(hcd); - struct ehci_regs __iomem *hw = ehci->regs; - unsigned long val; - - set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); - tegra_ehci_power_up(hcd); - - if (tegra->port_speed > TEGRA_USB_PHY_PORT_SPEED_HIGH) { - /* Wait for the phy to detect new devices - * before we restart the controller */ - msleep(10); - goto restart; - } - - /* Force the phy to keep data lines in suspend state */ - tegra_ehci_phy_restore_start(tegra->phy, tegra->port_speed); - - /* Enable host mode */ - tdi_reset(ehci); - - /* Enable Port Power */ - val = readl(&hw->port_status[0]); - val |= PORT_POWER; - writel(val, &hw->port_status[0]); - udelay(10); - - /* Check if the phy resume from LP0. When the phy resume from LP0 - * USB register will be reset. */ - if (!readl(&hw->async_next)) { - /* Program the field PTC based on the saved speed mode */ - val = readl(&hw->port_status[0]); - val &= ~PORT_TEST(~0); - if (tegra->port_speed == TEGRA_USB_PHY_PORT_SPEED_HIGH) - val |= PORT_TEST_FORCE; - else if (tegra->port_speed == TEGRA_USB_PHY_PORT_SPEED_FULL) - val |= PORT_TEST(6); - else if (tegra->port_speed == TEGRA_USB_PHY_PORT_SPEED_LOW) - val |= PORT_TEST(7); - writel(val, &hw->port_status[0]); - udelay(10); - - /* Disable test mode by setting PTC field to NORMAL_OP */ - val = readl(&hw->port_status[0]); - val &= ~PORT_TEST(~0); - writel(val, &hw->port_status[0]); - udelay(10); - } - - /* Poll until CCS is enabled */ - if (handshake(ehci, &hw->port_status[0], PORT_CONNECT, - PORT_CONNECT, 2000)) { - pr_err("%s: timeout waiting for PORT_CONNECT\n", __func__); - goto restart; - } - - /* Poll until PE is enabled */ - if (handshake(ehci, &hw->port_status[0], PORT_PE, - PORT_PE, 2000)) { - pr_err("%s: timeout waiting for USB_PORTSC1_PE\n", __func__); - goto restart; - } - - /* Clear the PCI status, to avoid an interrupt taken upon resume */ - val = readl(&hw->status); - val |= STS_PCD; - writel(val, &hw->status); - - /* Put controller in suspend mode by writing 1 to SUSP bit of PORTSC */ - val = readl(&hw->port_status[0]); - if ((val & PORT_POWER) && (val & PORT_PE)) { - val |= PORT_SUSPEND; - writel(val, &hw->port_status[0]); - - /* Wait until port suspend completes */ - if (handshake(ehci, &hw->port_status[0], PORT_SUSPEND, - PORT_SUSPEND, 1000)) { - pr_err("%s: timeout waiting for PORT_SUSPEND\n", - __func__); - goto restart; - } - } - - tegra_ehci_phy_restore_end(tegra->phy); - return 0; - -restart: - if (tegra->port_speed <= TEGRA_USB_PHY_PORT_SPEED_HIGH) - tegra_ehci_phy_restore_end(tegra->phy); - - tegra_ehci_restart(hcd); - return 0; -} - static void tegra_ehci_shutdown(struct usb_hcd *hcd) { struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller); @@ -432,36 +319,6 @@ static int tegra_ehci_setup(struct usb_hcd *hcd) return retval; } -#ifdef CONFIG_PM -static int tegra_ehci_bus_suspend(struct usb_hcd *hcd) -{ - struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller); - int error_status = 0; - - error_status = ehci_bus_suspend(hcd); - if (!error_status && tegra->power_down_on_bus_suspend) { - tegra_usb_suspend(hcd); - tegra->bus_suspended = 1; - } - - return error_status; -} - -static int tegra_ehci_bus_resume(struct usb_hcd *hcd) -{ - struct tegra_ehci_hcd *tegra = dev_get_drvdata(hcd->self.controller); - - if (tegra->bus_suspended && tegra->power_down_on_bus_suspend) { - tegra_usb_resume(hcd); - tegra->bus_suspended = 0; - } - - tegra_usb_phy_preresume(tegra->phy); - tegra->port_resuming = 1; - return ehci_bus_resume(hcd); -} -#endif - struct temp_buffer { void *kmalloc_ptr; void *old_xfer_buffer; @@ -572,8 +429,8 @@ static const struct hc_driver tegra_ehci_hc_driver = { .hub_control = tegra_ehci_hub_control, .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, #ifdef CONFIG_PM - .bus_suspend = tegra_ehci_bus_suspend, - .bus_resume = tegra_ehci_bus_resume, + .bus_suspend = ehci_bus_suspend, + .bus_resume = ehci_bus_resume, #endif .relinquish_port = ehci_relinquish_port, .port_handed_over = ehci_port_handed_over, @@ -601,11 +458,187 @@ static int setup_vbus_gpio(struct platform_device *pdev) dev_err(&pdev->dev, "can't enable vbus\n"); return err; } - gpio_set_value(gpio, 1); return err; } +#ifdef CONFIG_PM + +static int controller_suspend(struct device *dev) +{ + struct tegra_ehci_hcd *tegra = + platform_get_drvdata(to_platform_device(dev)); + struct ehci_hcd *ehci = tegra->ehci; + struct usb_hcd *hcd = ehci_to_hcd(ehci); + struct ehci_regs __iomem *hw = ehci->regs; + unsigned long flags; + + if (time_before(jiffies, ehci->next_statechange)) + msleep(10); + + spin_lock_irqsave(&ehci->lock, flags); + + tegra->port_speed = (readl(&hw->port_status[0]) >> 26) & 0x3; + ehci_halt(ehci); + clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + + spin_unlock_irqrestore(&ehci->lock, flags); + + tegra_ehci_power_down(hcd); + return 0; +} + +static int controller_resume(struct device *dev) +{ + struct tegra_ehci_hcd *tegra = + platform_get_drvdata(to_platform_device(dev)); + struct ehci_hcd *ehci = tegra->ehci; + struct usb_hcd *hcd = ehci_to_hcd(ehci); + struct ehci_regs __iomem *hw = ehci->regs; + unsigned long val; + + set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); + tegra_ehci_power_up(hcd); + + if (tegra->port_speed > TEGRA_USB_PHY_PORT_SPEED_HIGH) { + /* Wait for the phy to detect new devices + * before we restart the controller */ + msleep(10); + goto restart; + } + + /* Force the phy to keep data lines in suspend state */ + tegra_ehci_phy_restore_start(tegra->phy, tegra->port_speed); + + /* Enable host mode */ + tdi_reset(ehci); + + /* Enable Port Power */ + val = readl(&hw->port_status[0]); + val |= PORT_POWER; + writel(val, &hw->port_status[0]); + udelay(10); + + /* Check if the phy resume from LP0. When the phy resume from LP0 + * USB register will be reset. */ + if (!readl(&hw->async_next)) { + /* Program the field PTC based on the saved speed mode */ + val = readl(&hw->port_status[0]); + val &= ~PORT_TEST(~0); + if (tegra->port_speed == TEGRA_USB_PHY_PORT_SPEED_HIGH) + val |= PORT_TEST_FORCE; + else if (tegra->port_speed == TEGRA_USB_PHY_PORT_SPEED_FULL) + val |= PORT_TEST(6); + else if (tegra->port_speed == TEGRA_USB_PHY_PORT_SPEED_LOW) + val |= PORT_TEST(7); + writel(val, &hw->port_status[0]); + udelay(10); + + /* Disable test mode by setting PTC field to NORMAL_OP */ + val = readl(&hw->port_status[0]); + val &= ~PORT_TEST(~0); + writel(val, &hw->port_status[0]); + udelay(10); + } + + /* Poll until CCS is enabled */ + if (handshake(ehci, &hw->port_status[0], PORT_CONNECT, + PORT_CONNECT, 2000)) { + pr_err("%s: timeout waiting for PORT_CONNECT\n", __func__); + goto restart; + } + + /* Poll until PE is enabled */ + if (handshake(ehci, &hw->port_status[0], PORT_PE, + PORT_PE, 2000)) { + pr_err("%s: timeout waiting for USB_PORTSC1_PE\n", __func__); + goto restart; + } + + /* Clear the PCI status, to avoid an interrupt taken upon resume */ + val = readl(&hw->status); + val |= STS_PCD; + writel(val, &hw->status); + + /* Put controller in suspend mode by writing 1 to SUSP bit of PORTSC */ + val = readl(&hw->port_status[0]); + if ((val & PORT_POWER) && (val & PORT_PE)) { + val |= PORT_SUSPEND; + writel(val, &hw->port_status[0]); + + /* Wait until port suspend completes */ + if (handshake(ehci, &hw->port_status[0], PORT_SUSPEND, + PORT_SUSPEND, 1000)) { + pr_err("%s: timeout waiting for PORT_SUSPEND\n", + __func__); + goto restart; + } + } + + tegra_ehci_phy_restore_end(tegra->phy); + goto done; + + restart: + if (tegra->port_speed <= TEGRA_USB_PHY_PORT_SPEED_HIGH) + tegra_ehci_phy_restore_end(tegra->phy); + + tegra_ehci_restart(hcd); + + done: + tegra_usb_phy_preresume(tegra->phy); + tegra->port_resuming = 1; + return 0; +} + +static int tegra_ehci_suspend(struct device *dev) +{ + struct tegra_ehci_hcd *tegra = + platform_get_drvdata(to_platform_device(dev)); + struct usb_hcd *hcd = ehci_to_hcd(tegra->ehci); + int rc = 0; + + /* + * When system sleep is supported and USB controller wakeup is + * implemented: If the controller is runtime-suspended and the + * wakeup setting needs to be changed, call pm_runtime_resume(). + */ + if (HCD_HW_ACCESSIBLE(hcd)) + rc = controller_suspend(dev); + return rc; +} + +static int tegra_ehci_resume(struct device *dev) +{ + int rc; + + rc = controller_resume(dev); + if (rc == 0) { + pm_runtime_disable(dev); + pm_runtime_set_active(dev); + pm_runtime_enable(dev); + } + return rc; +} + +static int tegra_ehci_runtime_suspend(struct device *dev) +{ + return controller_suspend(dev); +} + +static int tegra_ehci_runtime_resume(struct device *dev) +{ + return controller_resume(dev); +} + +static const struct dev_pm_ops tegra_ehci_pm_ops = { + .suspend = tegra_ehci_suspend, + .resume = tegra_ehci_resume, + .runtime_suspend = tegra_ehci_runtime_suspend, + .runtime_resume = tegra_ehci_runtime_resume, +}; + +#endif + static u64 tegra_ehci_dma_mask = DMA_BIT_MASK(32); static int tegra_ehci_probe(struct platform_device *pdev) @@ -720,7 +753,6 @@ static int tegra_ehci_probe(struct platform_device *pdev) } tegra->host_resumed = 1; - tegra->power_down_on_bus_suspend = pdata->power_down_on_bus_suspend; tegra->ehci = hcd_to_ehci(hcd); irq = platform_get_irq(pdev, 0); @@ -729,7 +761,6 @@ static int tegra_ehci_probe(struct platform_device *pdev) err = -ENODEV; goto fail; } - set_irq_flags(irq, IRQF_VALID); #ifdef CONFIG_USB_OTG_UTILS if (pdata->operating_mode == TEGRA_USB_OTG) { @@ -745,6 +776,14 @@ static int tegra_ehci_probe(struct platform_device *pdev) goto fail; } + pm_runtime_set_active(&pdev->dev); + pm_runtime_get_noresume(&pdev->dev); + + /* Don't skip the pm_runtime_forbid call if wakeup isn't working */ + /* if (!pdata->power_down_on_bus_suspend) */ + pm_runtime_forbid(&pdev->dev); + pm_runtime_enable(&pdev->dev); + pm_runtime_put_sync(&pdev->dev); return err; fail: @@ -771,33 +810,6 @@ fail_hcd: return err; } -#ifdef CONFIG_PM -static int tegra_ehci_resume(struct platform_device *pdev) -{ - struct tegra_ehci_hcd *tegra = platform_get_drvdata(pdev); - struct usb_hcd *hcd = ehci_to_hcd(tegra->ehci); - - if (tegra->bus_suspended) - return 0; - - return tegra_usb_resume(hcd); -} - -static int tegra_ehci_suspend(struct platform_device *pdev, pm_message_t state) -{ - struct tegra_ehci_hcd *tegra = platform_get_drvdata(pdev); - struct usb_hcd *hcd = ehci_to_hcd(tegra->ehci); - - if (tegra->bus_suspended) - return 0; - - if (time_before(jiffies, tegra->ehci->next_statechange)) - msleep(10); - - return tegra_usb_suspend(hcd); -} -#endif - static int tegra_ehci_remove(struct platform_device *pdev) { struct tegra_ehci_hcd *tegra = platform_get_drvdata(pdev); @@ -806,6 +818,10 @@ static int tegra_ehci_remove(struct platform_device *pdev) if (tegra == NULL || hcd == NULL) return -EINVAL; + pm_runtime_get_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); + pm_runtime_put_noidle(&pdev->dev); + #ifdef CONFIG_USB_OTG_UTILS if (tegra->transceiver) { otg_set_host(tegra->transceiver->otg, NULL); @@ -846,13 +862,12 @@ static struct of_device_id tegra_ehci_of_match[] __devinitdata = { static struct platform_driver tegra_ehci_driver = { .probe = tegra_ehci_probe, .remove = tegra_ehci_remove, -#ifdef CONFIG_PM - .suspend = tegra_ehci_suspend, - .resume = tegra_ehci_resume, -#endif .shutdown = tegra_ehci_hcd_shutdown, .driver = { .name = "tegra-ehci", .of_match_table = tegra_ehci_of_match, +#ifdef CONFIG_PM + .pm = &tegra_ehci_pm_ops, +#endif } }; diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 8f9acbc96fd..2694ed6558d 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -117,6 +117,8 @@ struct ehci_hcd { /* one per controller */ the change-suspend feature turned on */ unsigned long suspended_ports; /* which ports are suspended */ + unsigned long resuming_ports; /* which ports have + started to resume */ /* per-HC memory pools (could be per-bus, but ...) */ struct dma_pool *qh_pool; /* qh per active urb */ diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index db8963f5fbc..13ebeca8e73 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -27,6 +27,10 @@ #error "CONFIG_ARCH_AT91 must be defined." #endif +#define valid_port(index) ((index) >= 0 && (index) < AT91_MAX_USBH_PORTS) +#define at91_for_each_port(index) \ + for ((index) = 0; (index) < AT91_MAX_USBH_PORTS; (index)++) + /* interface and function clocks; sometimes also an AHB clock */ static struct clk *iclk, *fclk, *hclk; static int clocked; @@ -90,7 +94,7 @@ static void at91_stop_hc(struct platform_device *pdev) /*-------------------------------------------------------------------------*/ -static void usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *); +static void __devexit usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *); /* configure so an HC device and id are always provided */ /* always called with process context; sleeping is OK */ @@ -104,7 +108,7 @@ static void usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *); * then invokes the start() method for the HCD associated with it * through the hotplug entry's driver_data. */ -static int usb_hcd_at91_probe(const struct hc_driver *driver, +static int __devinit usb_hcd_at91_probe(const struct hc_driver *driver, struct platform_device *pdev) { int retval; @@ -199,7 +203,7 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver, * context, "rmmod" or something similar. * */ -static void usb_hcd_at91_remove(struct usb_hcd *hcd, +static void __devexit usb_hcd_at91_remove(struct usb_hcd *hcd, struct platform_device *pdev) { usb_remove_hcd(hcd); @@ -240,26 +244,26 @@ ohci_at91_start (struct usb_hcd *hcd) static void ohci_at91_usb_set_power(struct at91_usbh_data *pdata, int port, int enable) { - if (port < 0 || port >= 2) + if (!valid_port(port)) return; if (!gpio_is_valid(pdata->vbus_pin[port])) return; gpio_set_value(pdata->vbus_pin[port], - !pdata->vbus_pin_active_low[port] ^ enable); + pdata->vbus_pin_active_low[port] ^ enable); } static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port) { - if (port < 0 || port >= 2) + if (!valid_port(port)) return -EINVAL; if (!gpio_is_valid(pdata->vbus_pin[port])) return -EINVAL; return gpio_get_value(pdata->vbus_pin[port]) ^ - !pdata->vbus_pin_active_low[port]; + pdata->vbus_pin_active_low[port]; } /* @@ -271,9 +275,9 @@ static int ohci_at91_hub_status_data(struct usb_hcd *hcd, char *buf) int length = ohci_hub_status_data(hcd, buf); int port; - for (port = 0; port < ARRAY_SIZE(pdata->overcurrent_pin); port++) { + at91_for_each_port(port) { if (pdata->overcurrent_changed[port]) { - if (! length) + if (!length) length = 1; buf[0] |= 1 << (port + 1); } @@ -297,11 +301,17 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, "ohci_at91_hub_control(%p,0x%04x,0x%04x,0x%04x,%p,%04x)\n", hcd, typeReq, wValue, wIndex, buf, wLength); + wIndex--; + switch (typeReq) { case SetPortFeature: if (wValue == USB_PORT_FEAT_POWER) { dev_dbg(hcd->self.controller, "SetPortFeat: POWER\n"); - ohci_at91_usb_set_power(pdata, wIndex - 1, 1); + if (valid_port(wIndex)) { + ohci_at91_usb_set_power(pdata, wIndex, 1); + ret = 0; + } + goto out; } break; @@ -312,9 +322,9 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, dev_dbg(hcd->self.controller, "ClearPortFeature: C_OVER_CURRENT\n"); - if (wIndex == 1 || wIndex == 2) { - pdata->overcurrent_changed[wIndex-1] = 0; - pdata->overcurrent_status[wIndex-1] = 0; + if (valid_port(wIndex)) { + pdata->overcurrent_changed[wIndex] = 0; + pdata->overcurrent_status[wIndex] = 0; } goto out; @@ -323,9 +333,8 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, dev_dbg(hcd->self.controller, "ClearPortFeature: OVER_CURRENT\n"); - if (wIndex == 1 || wIndex == 2) { - pdata->overcurrent_status[wIndex-1] = 0; - } + if (valid_port(wIndex)) + pdata->overcurrent_status[wIndex] = 0; goto out; @@ -333,15 +342,15 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, dev_dbg(hcd->self.controller, "ClearPortFeature: POWER\n"); - if (wIndex == 1 || wIndex == 2) { - ohci_at91_usb_set_power(pdata, wIndex - 1, 0); + if (valid_port(wIndex)) { + ohci_at91_usb_set_power(pdata, wIndex, 0); return 0; } } break; } - ret = ohci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength); + ret = ohci_hub_control(hcd, typeReq, wValue, wIndex + 1, buf, wLength); if (ret) goto out; @@ -377,18 +386,15 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, dev_dbg(hcd->self.controller, "GetPortStatus(%d)\n", wIndex); - if (wIndex == 1 || wIndex == 2) { - if (! ohci_at91_usb_get_power(pdata, wIndex-1)) { + if (valid_port(wIndex)) { + if (!ohci_at91_usb_get_power(pdata, wIndex)) *data &= ~cpu_to_le32(RH_PS_PPS); - } - if (pdata->overcurrent_changed[wIndex-1]) { + if (pdata->overcurrent_changed[wIndex]) *data |= cpu_to_le32(RH_PS_OCIC); - } - if (pdata->overcurrent_status[wIndex-1]) { + if (pdata->overcurrent_status[wIndex]) *data |= cpu_to_le32(RH_PS_POCI); - } } } @@ -450,14 +456,14 @@ static irqreturn_t ohci_hcd_at91_overcurrent_irq(int irq, void *data) /* From the GPIO notifying the over-current situation, find * out the corresponding port */ - for (port = 0; port < ARRAY_SIZE(pdata->overcurrent_pin); port++) { + at91_for_each_port(port) { if (gpio_to_irq(pdata->overcurrent_pin[port]) == irq) { gpio = pdata->overcurrent_pin[port]; break; } } - if (port == ARRAY_SIZE(pdata->overcurrent_pin)) { + if (port == AT91_MAX_USBH_PORTS) { dev_err(& pdev->dev, "overcurrent interrupt from unknown GPIO\n"); return IRQ_HANDLED; } @@ -467,7 +473,7 @@ static irqreturn_t ohci_hcd_at91_overcurrent_irq(int irq, void *data) /* When notified of an over-current situation, disable power on the corresponding port, and mark this port in over-current. */ - if (! val) { + if (!val) { ohci_at91_usb_set_power(pdata, port, 0); pdata->overcurrent_status[port] = 1; pdata->overcurrent_changed[port] = 1; @@ -492,7 +498,7 @@ static u64 at91_ohci_dma_mask = DMA_BIT_MASK(32); static int __devinit ohci_at91_of_init(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; - int i, ret, gpio; + int i, gpio; enum of_gpio_flags flags; struct at91_usbh_data *pdata; u32 ports; @@ -514,48 +520,17 @@ static int __devinit ohci_at91_of_init(struct platform_device *pdev) if (!of_property_read_u32(np, "num-ports", &ports)) pdata->ports = ports; - for (i = 0; i < 2; i++) { + at91_for_each_port(i) { gpio = of_get_named_gpio_flags(np, "atmel,vbus-gpio", i, &flags); pdata->vbus_pin[i] = gpio; if (!gpio_is_valid(gpio)) continue; pdata->vbus_pin_active_low[i] = flags & OF_GPIO_ACTIVE_LOW; - ret = gpio_request(gpio, "ohci_vbus"); - if (ret) { - dev_warn(&pdev->dev, "can't request vbus gpio %d", gpio); - continue; - } - ret = gpio_direction_output(gpio, !(flags & OF_GPIO_ACTIVE_LOW) ^ 1); - if (ret) - dev_warn(&pdev->dev, "can't put vbus gpio %d as output %d", - !(flags & OF_GPIO_ACTIVE_LOW) ^ 1, gpio); } - for (i = 0; i < 2; i++) { - gpio = of_get_named_gpio_flags(np, "atmel,oc-gpio", i, &flags); - pdata->overcurrent_pin[i] = gpio; - if (!gpio_is_valid(gpio)) - continue; - ret = gpio_request(gpio, "ohci_overcurrent"); - if (ret) { - dev_err(&pdev->dev, "can't request overcurrent gpio %d", gpio); - continue; - } - - ret = gpio_direction_input(gpio); - if (ret) { - dev_err(&pdev->dev, "can't configure overcurrent gpio %d as input", gpio); - continue; - } - - ret = request_irq(gpio_to_irq(gpio), - ohci_hcd_at91_overcurrent_irq, - IRQF_SHARED, "ohci_overcurrent", pdev); - if (ret) { - gpio_free(gpio); - dev_warn(& pdev->dev, "cannot get GPIO IRQ for overcurrent\n"); - } - } + at91_for_each_port(i) + pdata->overcurrent_pin[i] = + of_get_named_gpio_flags(np, "atmel,oc-gpio", i, &flags); pdev->dev.platform_data = pdata; @@ -570,39 +545,73 @@ static int __devinit ohci_at91_of_init(struct platform_device *pdev) /*-------------------------------------------------------------------------*/ -static int ohci_hcd_at91_drv_probe(struct platform_device *pdev) +static int __devinit ohci_hcd_at91_drv_probe(struct platform_device *pdev) { struct at91_usbh_data *pdata; int i; + int gpio; + int ret; - i = ohci_at91_of_init(pdev); - - if (i) - return i; + ret = ohci_at91_of_init(pdev); + if (ret) + return ret; pdata = pdev->dev.platform_data; if (pdata) { - for (i = 0; i < ARRAY_SIZE(pdata->vbus_pin); i++) { + at91_for_each_port(i) { if (!gpio_is_valid(pdata->vbus_pin[i])) continue; - gpio_request(pdata->vbus_pin[i], "ohci_vbus"); + gpio = pdata->vbus_pin[i]; + + ret = gpio_request(gpio, "ohci_vbus"); + if (ret) { + dev_err(&pdev->dev, + "can't request vbus gpio %d\n", gpio); + continue; + } + ret = gpio_direction_output(gpio, + !pdata->vbus_pin_active_low[i]); + if (ret) { + dev_err(&pdev->dev, + "can't put vbus gpio %d as output %d\n", + gpio, !pdata->vbus_pin_active_low[i]); + gpio_free(gpio); + continue; + } + ohci_at91_usb_set_power(pdata, i, 1); } - for (i = 0; i < ARRAY_SIZE(pdata->overcurrent_pin); i++) { - int ret; - + at91_for_each_port(i) { if (!gpio_is_valid(pdata->overcurrent_pin[i])) continue; - gpio_request(pdata->overcurrent_pin[i], "ohci_overcurrent"); + gpio = pdata->overcurrent_pin[i]; + + ret = gpio_request(gpio, "ohci_overcurrent"); + if (ret) { + dev_err(&pdev->dev, + "can't request overcurrent gpio %d\n", + gpio); + continue; + } + + ret = gpio_direction_input(gpio); + if (ret) { + dev_err(&pdev->dev, + "can't configure overcurrent gpio %d as input\n", + gpio); + gpio_free(gpio); + continue; + } - ret = request_irq(gpio_to_irq(pdata->overcurrent_pin[i]), + ret = request_irq(gpio_to_irq(gpio), ohci_hcd_at91_overcurrent_irq, IRQF_SHARED, "ohci_overcurrent", pdev); if (ret) { - gpio_free(pdata->overcurrent_pin[i]); - dev_warn(& pdev->dev, "cannot get GPIO IRQ for overcurrent\n"); + gpio_free(gpio); + dev_err(&pdev->dev, + "can't get gpio IRQ for overcurrent\n"); } } } @@ -611,20 +620,20 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev) return usb_hcd_at91_probe(&ohci_at91_hc_driver, pdev); } -static int ohci_hcd_at91_drv_remove(struct platform_device *pdev) +static int __devexit ohci_hcd_at91_drv_remove(struct platform_device *pdev) { struct at91_usbh_data *pdata = pdev->dev.platform_data; int i; if (pdata) { - for (i = 0; i < ARRAY_SIZE(pdata->vbus_pin); i++) { + at91_for_each_port(i) { if (!gpio_is_valid(pdata->vbus_pin[i])) continue; ohci_at91_usb_set_power(pdata, i, 0); gpio_free(pdata->vbus_pin[i]); } - for (i = 0; i < ARRAY_SIZE(pdata->overcurrent_pin); i++) { + at91_for_each_port(i) { if (!gpio_is_valid(pdata->overcurrent_pin[i])) continue; free_irq(gpio_to_irq(pdata->overcurrent_pin[i]), pdev); @@ -687,7 +696,7 @@ MODULE_ALIAS("platform:at91_ohci"); static struct platform_driver ohci_hcd_at91_driver = { .probe = ohci_hcd_at91_drv_probe, - .remove = ohci_hcd_at91_drv_remove, + .remove = __devexit_p(ohci_hcd_at91_drv_remove), .shutdown = usb_hcd_platform_shutdown, .suspend = ohci_hcd_at91_drv_suspend, .resume = ohci_hcd_at91_drv_resume, diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index 11de5f1be98..32dada8c8b4 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -825,9 +825,13 @@ static void __devinit quirk_usb_handoff_xhci(struct pci_dev *pdev) } } - /* Disable any BIOS SMIs */ - writel(XHCI_LEGACY_DISABLE_SMI, - base + ext_cap_offset + XHCI_LEGACY_CONTROL_OFFSET); + val = readl(base + ext_cap_offset + XHCI_LEGACY_CONTROL_OFFSET); + /* Mask off (turn off) any enabled SMIs */ + val &= XHCI_LEGACY_DISABLE_SMI; + /* Mask all SMI events bits, RW1C */ + val |= XHCI_LEGACY_SMI_EVENTS; + /* Disable any BIOS SMIs and clear all SMI events*/ + writel(val, base + ext_cap_offset + XHCI_LEGACY_CONTROL_OFFSET); if (usb_is_intel_switchable_xhci(pdev)) usb_enable_xhci_ports(pdev); diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c index 045cde4cbc3..768d54295a2 100644 --- a/drivers/usb/host/uhci-hub.c +++ b/drivers/usb/host/uhci-hub.c @@ -196,11 +196,12 @@ static int uhci_hub_status_data(struct usb_hcd *hcd, char *buf) status = get_hub_status_data(uhci, buf); switch (uhci->rh_state) { - case UHCI_RH_SUSPENDING: case UHCI_RH_SUSPENDED: /* if port change, ask to be resumed */ - if (status || uhci->resuming_ports) + if (status || uhci->resuming_ports) { + status = 1; usb_hcd_resume_root_hub(hcd); + } break; case UHCI_RH_AUTO_STOPPED: diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c index e9b0f043455..4b436f5a417 100644 --- a/drivers/usb/host/xhci-dbg.c +++ b/drivers/usb/host/xhci-dbg.c @@ -119,7 +119,7 @@ static void xhci_print_command_reg(struct xhci_hcd *xhci) xhci_dbg(xhci, " Event Interrupts %s\n", (temp & CMD_EIE) ? "enabled " : "disabled"); xhci_dbg(xhci, " Host System Error Interrupts %s\n", - (temp & CMD_EIE) ? "enabled " : "disabled"); + (temp & CMD_HSEIE) ? "enabled " : "disabled"); xhci_dbg(xhci, " HC has %sfinished light reset\n", (temp & CMD_LRESET) ? "not " : ""); } diff --git a/drivers/usb/host/xhci-ext-caps.h b/drivers/usb/host/xhci-ext-caps.h index c7f33123d4c..377f4242dab 100644 --- a/drivers/usb/host/xhci-ext-caps.h +++ b/drivers/usb/host/xhci-ext-caps.h @@ -62,8 +62,9 @@ /* USB Legacy Support Control and Status Register - section 7.1.2 */ /* Add this offset, plus the value of xECP in HCCPARAMS to the base address */ #define XHCI_LEGACY_CONTROL_OFFSET (0x04) -/* bits 1:2, 5:12, and 17:19 need to be preserved; bits 21:28 should be zero */ -#define XHCI_LEGACY_DISABLE_SMI ((0x3 << 1) + (0xff << 5) + (0x7 << 17)) +/* bits 1:3, 5:12, and 17:19 need to be preserved; bits 21:28 should be zero */ +#define XHCI_LEGACY_DISABLE_SMI ((0x7 << 1) + (0xff << 5) + (0x7 << 17)) +#define XHCI_LEGACY_SMI_EVENTS (0x7 << 29) /* USB 2.0 xHCI 0.96 L1C capability - section 7.2.2.1.3.2 */ #define XHCI_L1C (1 << 16) diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index cae4c6f2845..68eaa908ac8 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -1796,11 +1796,6 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci) int i; /* Free the Event Ring Segment Table and the actual Event Ring */ - if (xhci->ir_set) { - xhci_writel(xhci, 0, &xhci->ir_set->erst_size); - xhci_write_64(xhci, 0, &xhci->ir_set->erst_base); - xhci_write_64(xhci, 0, &xhci->ir_set->erst_dequeue); - } size = sizeof(struct xhci_erst_entry)*(xhci->erst.num_entries); if (xhci->erst.entries) dma_free_coherent(&pdev->dev, size, @@ -1812,7 +1807,6 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci) xhci->event_ring = NULL; xhci_dbg(xhci, "Freed event ring\n"); - xhci_write_64(xhci, 0, &xhci->op_regs->cmd_ring); if (xhci->cmd_ring) xhci_ring_free(xhci, xhci->cmd_ring); xhci->cmd_ring = NULL; @@ -1841,7 +1835,6 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci) xhci->medium_streams_pool = NULL; xhci_dbg(xhci, "Freed medium stream array pool\n"); - xhci_write_64(xhci, 0, &xhci->op_regs->dcbaa_ptr); if (xhci->dcbaa) dma_free_coherent(&pdev->dev, sizeof(*xhci->dcbaa), xhci->dcbaa, xhci->dcbaa->dma); @@ -2459,6 +2452,8 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) fail: xhci_warn(xhci, "Couldn't initialize memory\n"); + xhci_halt(xhci); + xhci_reset(xhci); xhci_mem_cleanup(xhci); return -ENOMEM; } diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index ef98b38626f..7a856a767e7 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -95,6 +95,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) xhci->quirks |= XHCI_RESET_ON_RESUME; xhci_dbg(xhci, "QUIRK: Resetting on resume\n"); } + if (pdev->vendor == PCI_VENDOR_ID_VIA) + xhci->quirks |= XHCI_RESET_ON_RESUME; } /* called during probe() after chip reset completes */ @@ -326,7 +328,7 @@ int __init xhci_register_pci(void) return pci_register_driver(&xhci_pci_driver); } -void __exit xhci_unregister_pci(void) +void xhci_unregister_pci(void) { pci_unregister_driver(&xhci_pci_driver); } diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 6bd9d53062e..3d9422f16a2 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -2417,7 +2417,7 @@ hw_died: u32 irq_pending; /* Acknowledge the PCI interrupt */ irq_pending = xhci_readl(xhci, &xhci->ir_set->irq_pending); - irq_pending |= 0x3; + irq_pending |= IMAN_IP; xhci_writel(xhci, irq_pending, &xhci->ir_set->irq_pending); } @@ -2734,7 +2734,7 @@ int xhci_queue_intr_tx(struct xhci_hcd *xhci, gfp_t mem_flags, urb->dev->speed == USB_SPEED_FULL) urb->interval /= 8; } - return xhci_queue_bulk_tx(xhci, GFP_ATOMIC, urb, slot_id, ep_index); + return xhci_queue_bulk_tx(xhci, mem_flags, urb, slot_id, ep_index); } /* @@ -3514,7 +3514,7 @@ int xhci_queue_isoc_tx_prepare(struct xhci_hcd *xhci, gfp_t mem_flags, } ep_ring->num_trbs_free_temp = ep_ring->num_trbs_free; - return xhci_queue_isoc_tx(xhci, GFP_ATOMIC, urb, slot_id, ep_index); + return xhci_queue_isoc_tx(xhci, mem_flags, urb, slot_id, ep_index); } /**** Command Ring Operations ****/ diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index e1963d4a430..36641a7f237 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -106,6 +106,9 @@ int xhci_halt(struct xhci_hcd *xhci) STS_HALT, STS_HALT, XHCI_MAX_HALT_USEC); if (!ret) xhci->xhc_state |= XHCI_STATE_HALTED; + else + xhci_warn(xhci, "Host not halted after %u microseconds.\n", + XHCI_MAX_HALT_USEC); return ret; } @@ -664,11 +667,11 @@ static void xhci_save_registers(struct xhci_hcd *xhci) xhci->s3.dev_nt = xhci_readl(xhci, &xhci->op_regs->dev_notification); xhci->s3.dcbaa_ptr = xhci_read_64(xhci, &xhci->op_regs->dcbaa_ptr); xhci->s3.config_reg = xhci_readl(xhci, &xhci->op_regs->config_reg); - xhci->s3.irq_pending = xhci_readl(xhci, &xhci->ir_set->irq_pending); - xhci->s3.irq_control = xhci_readl(xhci, &xhci->ir_set->irq_control); xhci->s3.erst_size = xhci_readl(xhci, &xhci->ir_set->erst_size); xhci->s3.erst_base = xhci_read_64(xhci, &xhci->ir_set->erst_base); xhci->s3.erst_dequeue = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue); + xhci->s3.irq_pending = xhci_readl(xhci, &xhci->ir_set->irq_pending); + xhci->s3.irq_control = xhci_readl(xhci, &xhci->ir_set->irq_control); } static void xhci_restore_registers(struct xhci_hcd *xhci) @@ -677,10 +680,11 @@ static void xhci_restore_registers(struct xhci_hcd *xhci) xhci_writel(xhci, xhci->s3.dev_nt, &xhci->op_regs->dev_notification); xhci_write_64(xhci, xhci->s3.dcbaa_ptr, &xhci->op_regs->dcbaa_ptr); xhci_writel(xhci, xhci->s3.config_reg, &xhci->op_regs->config_reg); - xhci_writel(xhci, xhci->s3.irq_pending, &xhci->ir_set->irq_pending); - xhci_writel(xhci, xhci->s3.irq_control, &xhci->ir_set->irq_control); xhci_writel(xhci, xhci->s3.erst_size, &xhci->ir_set->erst_size); xhci_write_64(xhci, xhci->s3.erst_base, &xhci->ir_set->erst_base); + xhci_write_64(xhci, xhci->s3.erst_dequeue, &xhci->ir_set->erst_dequeue); + xhci_writel(xhci, xhci->s3.irq_pending, &xhci->ir_set->irq_pending); + xhci_writel(xhci, xhci->s3.irq_control, &xhci->ir_set->irq_control); } static void xhci_set_cmd_ring_deq(struct xhci_hcd *xhci) diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 91074fdab3e..3d69c4b2b54 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -205,6 +205,10 @@ struct xhci_op_regs { #define CMD_PM_INDEX (1 << 11) /* bits 12:31 are reserved (and should be preserved on writes). */ +/* IMAN - Interrupt Management Register */ +#define IMAN_IP (1 << 1) +#define IMAN_IE (1 << 0) + /* USBSTS - USB status - status bitmasks */ /* HC not running - set to 1 when run/stop bit is cleared. */ #define STS_HALT XHCI_STS_HALT diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 959145baf3c..9dcb68f04f0 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -423,7 +423,7 @@ alloc_sglist(int nents, int max, int vary) unsigned i; unsigned size = max; - sg = kmalloc(nents * sizeof *sg, GFP_KERNEL); + sg = kmalloc_array(nents, sizeof *sg, GFP_KERNEL); if (!sg) return NULL; sg_init_table(sg, nents); @@ -904,6 +904,9 @@ test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param) struct ctrl_ctx context; int i; + if (param->sglen == 0 || param->iterations > UINT_MAX / param->sglen) + return -EOPNOTSUPP; + spin_lock_init(&context.lock); context.dev = dev; init_completion(&context.complete); @@ -1981,8 +1984,6 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf) /* queued control messaging */ case 10: - if (param->sglen == 0) - break; retval = 0; dev_info(&intf->dev, "TEST 10: queue %d control calls, %d times\n", @@ -2276,6 +2277,8 @@ usbtest_probe(struct usb_interface *intf, const struct usb_device_id *id) if (status < 0) { WARNING(dev, "couldn't get endpoints, %d\n", status); + kfree(dev->buf); + kfree(dev); return status; } /* may find bulk or ISO pipes */ diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c index 897edda4227..70201462e19 100644 --- a/drivers/usb/misc/yurex.c +++ b/drivers/usb/misc/yurex.c @@ -99,9 +99,7 @@ static void yurex_delete(struct kref *kref) usb_put_dev(dev->udev); if (dev->cntl_urb) { usb_kill_urb(dev->cntl_urb); - if (dev->cntl_req) - usb_free_coherent(dev->udev, YUREX_BUF_SIZE, - dev->cntl_req, dev->cntl_urb->setup_dma); + kfree(dev->cntl_req); if (dev->cntl_buffer) usb_free_coherent(dev->udev, YUREX_BUF_SIZE, dev->cntl_buffer, dev->cntl_urb->transfer_dma); @@ -234,9 +232,7 @@ static int yurex_probe(struct usb_interface *interface, const struct usb_device_ } /* allocate buffer for control req */ - dev->cntl_req = usb_alloc_coherent(dev->udev, YUREX_BUF_SIZE, - GFP_KERNEL, - &dev->cntl_urb->setup_dma); + dev->cntl_req = kmalloc(YUREX_BUF_SIZE, GFP_KERNEL); if (!dev->cntl_req) { err("Could not allocate cntl_req"); goto error; @@ -286,7 +282,7 @@ static int yurex_probe(struct usb_interface *interface, const struct usb_device_ usb_rcvintpipe(dev->udev, dev->int_in_endpointAddr), dev->int_buffer, YUREX_BUF_SIZE, yurex_interrupt, dev, 1); - dev->cntl_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + dev->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; if (usb_submit_urb(dev->urb, GFP_KERNEL)) { retval = -EIO; err("Could not submitting URB"); diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c index 97ab975fa44..768b4b55c81 100644 --- a/drivers/usb/musb/davinci.c +++ b/drivers/usb/musb/davinci.c @@ -386,7 +386,7 @@ static int davinci_musb_init(struct musb *musb) usb_nop_xceiv_register(); musb->xceiv = usb_get_transceiver(); if (!musb->xceiv) - return -ENODEV; + goto unregister; musb->mregs += DAVINCI_BASE_OFFSET; @@ -444,6 +444,7 @@ static int davinci_musb_init(struct musb *musb) fail: usb_put_transceiver(musb->xceiv); +unregister: usb_nop_xceiv_unregister(); return -ENODEV; } diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 0f8b82918a4..66aaccf0449 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -137,6 +137,9 @@ static int musb_ulpi_read(struct usb_phy *phy, u32 offset) int i = 0; u8 r; u8 power; + int ret; + + pm_runtime_get_sync(phy->io_dev); /* Make sure the transceiver is not in low power mode */ power = musb_readb(addr, MUSB_POWER); @@ -154,15 +157,22 @@ static int musb_ulpi_read(struct usb_phy *phy, u32 offset) while (!(musb_readb(addr, MUSB_ULPI_REG_CONTROL) & MUSB_ULPI_REG_CMPLT)) { i++; - if (i == 10000) - return -ETIMEDOUT; + if (i == 10000) { + ret = -ETIMEDOUT; + goto out; + } } r = musb_readb(addr, MUSB_ULPI_REG_CONTROL); r &= ~MUSB_ULPI_REG_CMPLT; musb_writeb(addr, MUSB_ULPI_REG_CONTROL, r); - return musb_readb(addr, MUSB_ULPI_REG_DATA); + ret = musb_readb(addr, MUSB_ULPI_REG_DATA); + +out: + pm_runtime_put(phy->io_dev); + + return ret; } static int musb_ulpi_write(struct usb_phy *phy, u32 offset, u32 data) @@ -171,6 +181,9 @@ static int musb_ulpi_write(struct usb_phy *phy, u32 offset, u32 data) int i = 0; u8 r = 0; u8 power; + int ret = 0; + + pm_runtime_get_sync(phy->io_dev); /* Make sure the transceiver is not in low power mode */ power = musb_readb(addr, MUSB_POWER); @@ -184,15 +197,20 @@ static int musb_ulpi_write(struct usb_phy *phy, u32 offset, u32 data) while (!(musb_readb(addr, MUSB_ULPI_REG_CONTROL) & MUSB_ULPI_REG_CMPLT)) { i++; - if (i == 10000) - return -ETIMEDOUT; + if (i == 10000) { + ret = -ETIMEDOUT; + goto out; + } } r = musb_readb(addr, MUSB_ULPI_REG_CONTROL); r &= ~MUSB_ULPI_REG_CMPLT; musb_writeb(addr, MUSB_ULPI_REG_CONTROL, r); - return 0; +out: + pm_runtime_put(phy->io_dev); + + return ret; } #else #define musb_ulpi_read NULL @@ -1904,14 +1922,17 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl) if (!musb->isr) { status = -ENODEV; - goto fail3; + goto fail2; } if (!musb->xceiv->io_ops) { + musb->xceiv->io_dev = musb->controller; musb->xceiv->io_priv = musb->mregs; musb->xceiv->io_ops = &musb_ulpi_access; } + pm_runtime_get_sync(musb->controller); + #ifndef CONFIG_MUSB_PIO_ONLY if (use_dma && dev->dma_mask) { struct dma_controller *c; @@ -2023,6 +2044,8 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl) goto fail5; #endif + pm_runtime_put(musb->controller); + dev_info(dev, "USB %s mode controller at %p using %s, IRQ %d\n", ({char *s; switch (musb->board_mode) { @@ -2047,6 +2070,9 @@ fail4: musb_gadget_cleanup(musb); fail3: + pm_runtime_put_sync(musb->controller); + +fail2: if (musb->irq_wake) device_init_wakeup(dev, 0); musb_platform_exit(musb); diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index 93de517a32a..f4a40f001c8 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -449,7 +449,7 @@ struct musb { * We added this flag to forcefully disable double * buffering until we get it working. */ - unsigned double_buffer_not_ok:1 __deprecated; + unsigned double_buffer_not_ok:1; struct musb_hdrc_config *config; diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 79cb0af779f..ef8d744800a 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -2098,7 +2098,7 @@ static int musb_cleanup_urb(struct urb *urb, struct musb_qh *qh) } /* turn off DMA requests, discard state, stop polling ... */ - if (is_in) { + if (ep->epnum && is_in) { /* giveback saves bulk toggle */ csr = musb_h_flush_rxfifo(ep, 0); diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index 2ae0bb30999..c7785e81254 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -282,7 +282,8 @@ static void musb_otg_notifier_work(struct work_struct *data_notifier_work) static int omap2430_musb_init(struct musb *musb) { - u32 l, status = 0; + u32 l; + int status = 0; struct device *dev = musb->controller; struct musb_hdrc_platform_data *plat = dev->platform_data; struct omap_musb_board_data *data = plat->board_data; @@ -301,7 +302,7 @@ static int omap2430_musb_init(struct musb *musb) status = pm_runtime_get_sync(dev); if (status < 0) { - dev_err(dev, "pm_runtime_get_sync FAILED"); + dev_err(dev, "pm_runtime_get_sync FAILED %d\n", status); goto err1; } @@ -333,6 +334,7 @@ static int omap2430_musb_init(struct musb *musb) setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb); + pm_runtime_put_noidle(musb->controller); return 0; err1: @@ -452,14 +454,14 @@ static int __devinit omap2430_probe(struct platform_device *pdev) goto err2; } + pm_runtime_enable(&pdev->dev); + ret = platform_device_add(musb); if (ret) { dev_err(&pdev->dev, "failed to register musb device\n"); goto err2; } - pm_runtime_enable(&pdev->dev); - return 0; err2: @@ -478,7 +480,6 @@ static int __devexit omap2430_remove(struct platform_device *pdev) platform_device_del(glue->musb); platform_device_put(glue->musb); - pm_runtime_put(&pdev->dev); kfree(glue); return 0; @@ -491,11 +492,13 @@ static int omap2430_runtime_suspend(struct device *dev) struct omap2430_glue *glue = dev_get_drvdata(dev); struct musb *musb = glue_to_musb(glue); - musb->context.otg_interfsel = musb_readl(musb->mregs, - OTG_INTERFSEL); + if (musb) { + musb->context.otg_interfsel = musb_readl(musb->mregs, + OTG_INTERFSEL); - omap2430_low_level_exit(musb); - usb_phy_set_suspend(musb->xceiv, 1); + omap2430_low_level_exit(musb); + usb_phy_set_suspend(musb->xceiv, 1); + } return 0; } @@ -505,11 +508,13 @@ static int omap2430_runtime_resume(struct device *dev) struct omap2430_glue *glue = dev_get_drvdata(dev); struct musb *musb = glue_to_musb(glue); - omap2430_low_level_init(musb); - musb_writel(musb->mregs, OTG_INTERFSEL, - musb->context.otg_interfsel); + if (musb) { + omap2430_low_level_init(musb); + musb_writel(musb->mregs, OTG_INTERFSEL, + musb->context.otg_interfsel); - usb_phy_set_suspend(musb->xceiv, 0); + usb_phy_set_suspend(musb->xceiv, 0); + } return 0; } diff --git a/drivers/usb/otg/gpio_vbus.c b/drivers/usb/otg/gpio_vbus.c index 3ece43a2e4c..a0a2178974f 100644 --- a/drivers/usb/otg/gpio_vbus.c +++ b/drivers/usb/otg/gpio_vbus.c @@ -96,7 +96,7 @@ static void gpio_vbus_work(struct work_struct *work) struct gpio_vbus_data *gpio_vbus = container_of(work, struct gpio_vbus_data, work); struct gpio_vbus_mach_info *pdata = gpio_vbus->dev->platform_data; - int gpio; + int gpio, status; if (!gpio_vbus->phy.otg->gadget) return; @@ -108,7 +108,9 @@ static void gpio_vbus_work(struct work_struct *work) */ gpio = pdata->gpio_pullup; if (is_vbus_powered(pdata)) { + status = USB_EVENT_VBUS; gpio_vbus->phy.state = OTG_STATE_B_PERIPHERAL; + gpio_vbus->phy.last_event = status; usb_gadget_vbus_connect(gpio_vbus->phy.otg->gadget); /* drawing a "unit load" is *always* OK, except for OTG */ @@ -117,6 +119,9 @@ static void gpio_vbus_work(struct work_struct *work) /* optionally enable D+ pullup */ if (gpio_is_valid(gpio)) gpio_set_value(gpio, !pdata->gpio_pullup_inverted); + + atomic_notifier_call_chain(&gpio_vbus->phy.notifier, + status, gpio_vbus->phy.otg->gadget); } else { /* optionally disable D+ pullup */ if (gpio_is_valid(gpio)) @@ -125,7 +130,12 @@ static void gpio_vbus_work(struct work_struct *work) set_vbus_draw(gpio_vbus, 0); usb_gadget_vbus_disconnect(gpio_vbus->phy.otg->gadget); + status = USB_EVENT_NONE; gpio_vbus->phy.state = OTG_STATE_B_IDLE; + gpio_vbus->phy.last_event = status; + + atomic_notifier_call_chain(&gpio_vbus->phy.notifier, + status, gpio_vbus->phy.otg->gadget); } } @@ -287,6 +297,9 @@ static int __init gpio_vbus_probe(struct platform_device *pdev) irq, err); goto err_irq; } + + ATOMIC_INIT_NOTIFIER_HEAD(&gpio_vbus->phy.notifier); + INIT_WORK(&gpio_vbus->work, gpio_vbus_work); gpio_vbus->vbus_draw = regulator_get(&pdev->dev, "vbus_draw"); diff --git a/drivers/usb/serial/bus.c b/drivers/usb/serial/bus.c index 7f547dc3a59..ed8adb052ca 100644 --- a/drivers/usb/serial/bus.c +++ b/drivers/usb/serial/bus.c @@ -60,8 +60,6 @@ static int usb_serial_device_probe(struct device *dev) retval = -ENODEV; goto exit; } - if (port->dev_state != PORT_REGISTERING) - goto exit; driver = port->serial->type; if (driver->port_probe) { @@ -98,9 +96,6 @@ static int usb_serial_device_remove(struct device *dev) if (!port) return -ENODEV; - if (port->dev_state != PORT_UNREGISTERING) - return retval; - device_remove_file(&port->dev, &dev_attr_port_number); driver = port->serial->type; diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 0310e2df59f..ec30f95ef39 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -287,7 +287,8 @@ static int cp210x_get_config(struct usb_serial_port *port, u8 request, /* Issue the request, attempting to read 'size' bytes */ result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), request, REQTYPE_DEVICE_TO_HOST, 0x0000, - port_priv->bInterfaceNumber, buf, size, 300); + port_priv->bInterfaceNumber, buf, size, + USB_CTRL_GET_TIMEOUT); /* Convert data into an array of integers */ for (i = 0; i < length; i++) @@ -340,12 +341,14 @@ static int cp210x_set_config(struct usb_serial_port *port, u8 request, result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), request, REQTYPE_HOST_TO_DEVICE, 0x0000, - port_priv->bInterfaceNumber, buf, size, 300); + port_priv->bInterfaceNumber, buf, size, + USB_CTRL_SET_TIMEOUT); } else { result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), request, REQTYPE_HOST_TO_DEVICE, data[0], - port_priv->bInterfaceNumber, NULL, 0, 300); + port_priv->bInterfaceNumber, NULL, 0, + USB_CTRL_SET_TIMEOUT); } kfree(buf); diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index ff8605b4b4b..02e7f2d32d5 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -75,7 +75,8 @@ struct ftdi_private { unsigned long last_dtr_rts; /* saved modem control outputs */ struct async_icount icount; wait_queue_head_t delta_msr_wait; /* Used for TIOCMIWAIT */ - char prev_status, diff_status; /* Used for TIOCMIWAIT */ + char prev_status; /* Used for TIOCMIWAIT */ + bool dev_gone; /* Used to abort TIOCMIWAIT */ char transmit_empty; /* If transmitter is empty or not */ struct usb_serial_port *port; __u16 interface; /* FT2232C, FT2232H or FT4232H port interface @@ -1681,6 +1682,7 @@ static int ftdi_sio_port_probe(struct usb_serial_port *port) init_waitqueue_head(&priv->delta_msr_wait); priv->flags = ASYNC_LOW_LATENCY; + priv->dev_gone = false; if (quirk && quirk->port_probe) quirk->port_probe(priv); @@ -1839,6 +1841,9 @@ static int ftdi_sio_port_remove(struct usb_serial_port *port) dbg("%s", __func__); + priv->dev_gone = true; + wake_up_interruptible_all(&priv->delta_msr_wait); + remove_sysfs_attrs(port); kref_put(&priv->kref, ftdi_sio_priv_release); @@ -1982,17 +1987,19 @@ static int ftdi_process_packet(struct tty_struct *tty, N.B. packet may be processed more than once, but differences are only processed once. */ status = packet[0] & FTDI_STATUS_B0_MASK; - if (status & FTDI_RS0_CTS) - priv->icount.cts++; - if (status & FTDI_RS0_DSR) - priv->icount.dsr++; - if (status & FTDI_RS0_RI) - priv->icount.rng++; - if (status & FTDI_RS0_RLSD) - priv->icount.dcd++; if (status != priv->prev_status) { - priv->diff_status |= status ^ priv->prev_status; - wake_up_interruptible(&priv->delta_msr_wait); + char diff_status = status ^ priv->prev_status; + + if (diff_status & FTDI_RS0_CTS) + priv->icount.cts++; + if (diff_status & FTDI_RS0_DSR) + priv->icount.dsr++; + if (diff_status & FTDI_RS0_RI) + priv->icount.rng++; + if (diff_status & FTDI_RS0_RLSD) + priv->icount.dcd++; + + wake_up_interruptible_all(&priv->delta_msr_wait); priv->prev_status = status; } @@ -2395,15 +2402,12 @@ static int ftdi_ioctl(struct tty_struct *tty, */ case TIOCMIWAIT: cprev = priv->icount; - while (1) { + while (!priv->dev_gone) { interruptible_sleep_on(&priv->delta_msr_wait); /* see if a signal did it */ if (signal_pending(current)) return -ERESTARTSYS; cnow = priv->icount; - if (cnow.rng == cprev.rng && cnow.dsr == cprev.dsr && - cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) - return -EIO; /* no change => error */ if (((arg & TIOCM_RNG) && (cnow.rng != cprev.rng)) || ((arg & TIOCM_DSR) && (cnow.dsr != cprev.dsr)) || ((arg & TIOCM_CD) && (cnow.dcd != cprev.dcd)) || @@ -2412,7 +2416,7 @@ static int ftdi_ioctl(struct tty_struct *tty, } cprev = cnow; } - /* not reached */ + return -EIO; break; case TIOCSERGETLSR: return get_lsr_info(port, (struct serial_struct __user *)arg); diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c index 6e1622f2a29..08d16e8c002 100644 --- a/drivers/usb/serial/metro-usb.c +++ b/drivers/usb/serial/metro-usb.c @@ -27,8 +27,8 @@ /* Product information. */ #define FOCUS_VENDOR_ID 0x0C2E -#define FOCUS_PRODUCT_ID 0x0720 -#define FOCUS_PRODUCT_ID_UNI 0x0710 +#define FOCUS_PRODUCT_ID_BI 0x0720 +#define FOCUS_PRODUCT_ID_UNI 0x0700 #define METROUSB_SET_REQUEST_TYPE 0x40 #define METROUSB_SET_MODEM_CTRL_REQUEST 10 @@ -47,7 +47,7 @@ struct metrousb_private { /* Device table list. */ static struct usb_device_id id_table[] = { - { USB_DEVICE(FOCUS_VENDOR_ID, FOCUS_PRODUCT_ID) }, + { USB_DEVICE(FOCUS_VENDOR_ID, FOCUS_PRODUCT_ID_BI) }, { USB_DEVICE(FOCUS_VENDOR_ID, FOCUS_PRODUCT_ID_UNI) }, { }, /* Terminating entry. */ }; diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 836cfa9a515..f4465ccddc3 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -708,6 +708,7 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_EMBEDDED_FULLSPEED) }, { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_EMBEDDED_FULLSPEED) }, { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_EVDO_HIGHSPEED) }, + { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED) }, { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED3) }, { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED4) }, { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_HSPA_HIGHSPEED5) }, diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c index ff4a174fa5d..a1a9062954c 100644 --- a/drivers/usb/serial/pl2303.c +++ b/drivers/usb/serial/pl2303.c @@ -420,7 +420,7 @@ static void pl2303_set_termios(struct tty_struct *tty, control = priv->line_control; if ((cflag & CBAUD) == B0) priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS); - else + else if ((old_termios->c_cflag & CBAUD) == B0) priv->line_control |= (CONTROL_DTR | CONTROL_RTS); if (control != priv->line_control) { control = priv->line_control; diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index f14465a83dd..8c8bf806f6f 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -221,7 +221,7 @@ static const struct sierra_iface_info typeB_interface_list = { }; /* 'blacklist' of interfaces not served by this driver */ -static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11 }; +static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11, 19, 20 }; static const struct sierra_iface_info direct_ip_interface_blacklist = { .infolen = ARRAY_SIZE(direct_ip_non_serial_ifaces), .ifaceinfo = direct_ip_non_serial_ifaces, @@ -298,6 +298,9 @@ static const struct usb_device_id id_table[] = { /* Sierra Wireless HSPA Non-Composite Device */ { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)}, { USB_DEVICE(0x1199, 0x6893) }, /* Sierra Wireless Device */ + { USB_DEVICE(0x1199, 0x68A2), /* Sierra Wireless MC77xx in QMI mode */ + .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist + }, { USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless Direct IP modems */ .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist }, diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c index 69230f01056..97355a15bbe 100644 --- a/drivers/usb/serial/usb-serial.c +++ b/drivers/usb/serial/usb-serial.c @@ -1059,6 +1059,12 @@ int usb_serial_probe(struct usb_interface *interface, serial->attached = 1; } + /* Avoid race with tty_open and serial_install by setting the + * disconnected flag and not clearing it until all ports have been + * registered. + */ + serial->disconnected = 1; + if (get_free_serial(serial, num_ports, &minor) == NULL) { dev_err(&interface->dev, "No more free serial devices\n"); goto probe_error; @@ -1070,19 +1076,16 @@ int usb_serial_probe(struct usb_interface *interface, port = serial->port[i]; dev_set_name(&port->dev, "ttyUSB%d", port->number); dbg ("%s - registering %s", __func__, dev_name(&port->dev)); - port->dev_state = PORT_REGISTERING; device_enable_async_suspend(&port->dev); retval = device_add(&port->dev); - if (retval) { + if (retval) dev_err(&port->dev, "Error registering port device, " "continuing\n"); - port->dev_state = PORT_UNREGISTERED; - } else { - port->dev_state = PORT_REGISTERED; - } } + serial->disconnected = 0; + usb_serial_console_init(debug, minor); exit: @@ -1124,22 +1127,8 @@ void usb_serial_disconnect(struct usb_interface *interface) } kill_traffic(port); cancel_work_sync(&port->work); - if (port->dev_state == PORT_REGISTERED) { - - /* Make sure the port is bound so that the - * driver's port_remove method is called. - */ - if (!port->dev.driver) { - int rc; - - port->dev.driver = - &serial->type->driver; - rc = device_bind_driver(&port->dev); - } - port->dev_state = PORT_UNREGISTERING; + if (device_is_registered(&port->dev)) device_del(&port->dev); - port->dev_state = PORT_UNREGISTERED; - } } } serial->type->disconnect(serial); diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c index c18538e4a6d..2653e73db62 100644 --- a/drivers/usb/storage/usb.c +++ b/drivers/usb/storage/usb.c @@ -132,6 +132,35 @@ static struct us_unusual_dev for_dynamic_ids = #undef COMPLIANT_DEV #undef USUAL_DEV +#ifdef CONFIG_LOCKDEP + +static struct lock_class_key us_interface_key[USB_MAXINTERFACES]; + +static void us_set_lock_class(struct mutex *mutex, + struct usb_interface *intf) +{ + struct usb_device *udev = interface_to_usbdev(intf); + struct usb_host_config *config = udev->actconfig; + int i; + + for (i = 0; i < config->desc.bNumInterfaces; i++) { + if (config->interface[i] == intf) + break; + } + + BUG_ON(i == config->desc.bNumInterfaces); + + lockdep_set_class(mutex, &us_interface_key[i]); +} + +#else + +static void us_set_lock_class(struct mutex *mutex, + struct usb_interface *intf) +{ +} + +#endif #ifdef CONFIG_PM /* Minimal support for suspend and resume */ @@ -895,6 +924,7 @@ int usb_stor_probe1(struct us_data **pus, *pus = us = host_to_us(host); memset(us, 0, sizeof(struct us_data)); mutex_init(&(us->dev_mutex)); + us_set_lock_class(&us->dev_mutex, intf); init_completion(&us->cmnd_ready); init_completion(&(us->notify)); init_waitqueue_head(&us->delay_wait); |