diff options
Diffstat (limited to 'kernel/drivers/usb/core')
| -rw-r--r-- | kernel/drivers/usb/core/config.c | 107 | ||||
| -rw-r--r-- | kernel/drivers/usb/core/devices.c | 10 | ||||
| -rw-r--r-- | kernel/drivers/usb/core/devio.c | 25 | ||||
| -rw-r--r-- | kernel/drivers/usb/core/driver.c | 46 | ||||
| -rw-r--r-- | kernel/drivers/usb/core/hcd-pci.c | 11 | ||||
| -rw-r--r-- | kernel/drivers/usb/core/hcd.c | 6 | ||||
| -rw-r--r-- | kernel/drivers/usb/core/hub.c | 207 | ||||
| -rw-r--r-- | kernel/drivers/usb/core/quirks.c | 30 | ||||
| -rw-r--r-- | kernel/drivers/usb/core/urb.c | 3 | ||||
| -rw-r--r-- | kernel/drivers/usb/core/usb.h | 2 |
10 files changed, 268 insertions, 179 deletions
diff --git a/kernel/drivers/usb/core/config.c b/kernel/drivers/usb/core/config.c index 5050760f5..ac30a051a 100644 --- a/kernel/drivers/usb/core/config.c +++ b/kernel/drivers/usb/core/config.c @@ -142,6 +142,31 @@ static void usb_parse_ss_endpoint_companion(struct device *ddev, int cfgno, } } +static const unsigned short low_speed_maxpacket_maxes[4] = { + [USB_ENDPOINT_XFER_CONTROL] = 8, + [USB_ENDPOINT_XFER_ISOC] = 0, + [USB_ENDPOINT_XFER_BULK] = 0, + [USB_ENDPOINT_XFER_INT] = 8, +}; +static const unsigned short full_speed_maxpacket_maxes[4] = { + [USB_ENDPOINT_XFER_CONTROL] = 64, + [USB_ENDPOINT_XFER_ISOC] = 1023, + [USB_ENDPOINT_XFER_BULK] = 64, + [USB_ENDPOINT_XFER_INT] = 64, +}; +static const unsigned short high_speed_maxpacket_maxes[4] = { + [USB_ENDPOINT_XFER_CONTROL] = 64, + [USB_ENDPOINT_XFER_ISOC] = 1024, + [USB_ENDPOINT_XFER_BULK] = 512, + [USB_ENDPOINT_XFER_INT] = 1024, +}; +static const unsigned short super_speed_maxpacket_maxes[4] = { + [USB_ENDPOINT_XFER_CONTROL] = 512, + [USB_ENDPOINT_XFER_ISOC] = 1024, + [USB_ENDPOINT_XFER_BULK] = 1024, + [USB_ENDPOINT_XFER_INT] = 1024, +}; + static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, int asnum, struct usb_host_interface *ifp, int num_ep, unsigned char *buffer, int size) @@ -150,6 +175,8 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, struct usb_endpoint_descriptor *d; struct usb_host_endpoint *endpoint; int n, i, j, retval; + unsigned int maxp; + const unsigned short *maxpacket_maxes; d = (struct usb_endpoint_descriptor *) buffer; buffer += d->bLength; @@ -178,28 +205,43 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, if (ifp->desc.bNumEndpoints >= num_ep) goto skip_to_next_endpoint_or_interface_descriptor; + /* Check for duplicate endpoint addresses */ + for (i = 0; i < ifp->desc.bNumEndpoints; ++i) { + if (ifp->endpoint[i].desc.bEndpointAddress == + d->bEndpointAddress) { + dev_warn(ddev, "config %d interface %d altsetting %d has a duplicate endpoint with address 0x%X, skipping\n", + cfgno, inum, asnum, d->bEndpointAddress); + goto skip_to_next_endpoint_or_interface_descriptor; + } + } + endpoint = &ifp->endpoint[ifp->desc.bNumEndpoints]; ++ifp->desc.bNumEndpoints; memcpy(&endpoint->desc, d, n); INIT_LIST_HEAD(&endpoint->urb_list); - /* Fix up bInterval values outside the legal range. Use 32 ms if no - * proper value can be guessed. */ + /* + * Fix up bInterval values outside the legal range. + * Use 10 or 8 ms if no proper value can be guessed. + */ i = 0; /* i = min, j = max, n = default */ j = 255; if (usb_endpoint_xfer_int(d)) { i = 1; switch (to_usb_device(ddev)->speed) { + case USB_SPEED_SUPER_PLUS: case USB_SPEED_SUPER: case USB_SPEED_HIGH: - /* Many device manufacturers are using full-speed + /* + * Many device manufacturers are using full-speed * bInterval values in high-speed interrupt endpoint - * descriptors. Try to fix those and fall back to a - * 32 ms default value otherwise. */ + * descriptors. Try to fix those and fall back to an + * 8-ms default value otherwise. + */ n = fls(d->bInterval*8); if (n == 0) - n = 9; /* 32 ms = 2^(9-1) uframes */ + n = 7; /* 8 ms = 2^(7-1) uframes */ j = 16; /* @@ -214,10 +256,12 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, } break; default: /* USB_SPEED_FULL or _LOW */ - /* For low-speed, 10 ms is the official minimum. + /* + * For low-speed, 10 ms is the official minimum. * But some "overclocked" devices might want faster - * polling so we'll allow it. */ - n = 32; + * polling so we'll allow it. + */ + n = 10; break; } } else if (usb_endpoint_xfer_isoc(d)) { @@ -225,10 +269,10 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, j = 16; switch (to_usb_device(ddev)->speed) { case USB_SPEED_HIGH: - n = 9; /* 32 ms = 2^(9-1) uframes */ + n = 7; /* 8 ms = 2^(7-1) uframes */ break; default: /* USB_SPEED_FULL */ - n = 6; /* 32 ms = 2^(6-1) frames */ + n = 4; /* 8 ms = 2^(4-1) frames */ break; } } @@ -256,6 +300,42 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, endpoint->desc.wMaxPacketSize = cpu_to_le16(8); } + /* Validate the wMaxPacketSize field */ + maxp = usb_endpoint_maxp(&endpoint->desc); + + /* Find the highest legal maxpacket size for this endpoint */ + i = 0; /* additional transactions per microframe */ + switch (to_usb_device(ddev)->speed) { + case USB_SPEED_LOW: + maxpacket_maxes = low_speed_maxpacket_maxes; + break; + case USB_SPEED_FULL: + maxpacket_maxes = full_speed_maxpacket_maxes; + break; + case USB_SPEED_HIGH: + /* Bits 12..11 are allowed only for HS periodic endpoints */ + if (usb_endpoint_xfer_int(d) || usb_endpoint_xfer_isoc(d)) { + i = maxp & (BIT(12) | BIT(11)); + maxp &= ~i; + } + /* fallthrough */ + default: + maxpacket_maxes = high_speed_maxpacket_maxes; + break; + case USB_SPEED_SUPER: + case USB_SPEED_SUPER_PLUS: + maxpacket_maxes = super_speed_maxpacket_maxes; + break; + } + j = maxpacket_maxes[usb_endpoint_type(&endpoint->desc)]; + + if (maxp > j) { + dev_warn(ddev, "config %d interface %d altsetting %d endpoint 0x%X has invalid maxpacket %d, setting to %d\n", + cfgno, inum, asnum, d->bEndpointAddress, maxp, j); + maxp = j; + endpoint->desc.wMaxPacketSize = cpu_to_le16(i | maxp); + } + /* * Some buggy high speed devices have bulk endpoints using * maxpacket sizes other than 512. High speed HCDs may not @@ -263,9 +343,6 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, */ if (to_usb_device(ddev)->speed == USB_SPEED_HIGH && usb_endpoint_xfer_bulk(d)) { - unsigned maxp; - - maxp = usb_endpoint_maxp(&endpoint->desc) & 0x07ff; if (maxp != 512) dev_warn(ddev, "config %d interface %d altsetting %d " "bulk endpoint 0x%X has invalid maxpacket %d\n", @@ -274,7 +351,7 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno, int inum, } /* Parse a possible SuperSpeed endpoint companion descriptor */ - if (to_usb_device(ddev)->speed == USB_SPEED_SUPER) + if (to_usb_device(ddev)->speed >= USB_SPEED_SUPER) usb_parse_ss_endpoint_companion(ddev, cfgno, inum, asnum, endpoint, buffer, size); diff --git a/kernel/drivers/usb/core/devices.c b/kernel/drivers/usb/core/devices.c index 2a3bbdf7e..332ed277a 100644 --- a/kernel/drivers/usb/core/devices.c +++ b/kernel/drivers/usb/core/devices.c @@ -221,7 +221,7 @@ static char *usb_dump_endpoint_descriptor(int speed, char *start, char *end, break; case USB_ENDPOINT_XFER_INT: type = "Int."; - if (speed == USB_SPEED_HIGH || speed == USB_SPEED_SUPER) + if (speed == USB_SPEED_HIGH || speed >= USB_SPEED_SUPER) interval = 1 << (desc->bInterval - 1); else interval = desc->bInterval; @@ -230,7 +230,7 @@ static char *usb_dump_endpoint_descriptor(int speed, char *start, char *end, return start; } interval *= (speed == USB_SPEED_HIGH || - speed == USB_SPEED_SUPER) ? 125 : 1000; + speed >= USB_SPEED_SUPER) ? 125 : 1000; if (interval % 1000) unit = 'u'; else { @@ -322,7 +322,7 @@ static char *usb_dump_config_descriptor(char *start, char *end, if (start > end) return start; - if (speed == USB_SPEED_SUPER) + if (speed >= USB_SPEED_SUPER) mul = 8; else mul = 2; @@ -534,6 +534,8 @@ static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes, speed = "480"; break; case USB_SPEED_SUPER: speed = "5000"; break; + case USB_SPEED_SUPER_PLUS: + speed = "10000"; break; default: speed = "??"; } @@ -553,7 +555,7 @@ static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes, /* super/high speed reserves 80%, full/low reserves 90% */ if (usbdev->speed == USB_SPEED_HIGH || - usbdev->speed == USB_SPEED_SUPER) + usbdev->speed >= USB_SPEED_SUPER) max = 800; else max = FRAME_TIME_MAX_USECS_ALLOC; diff --git a/kernel/drivers/usb/core/devio.c b/kernel/drivers/usb/core/devio.c index 38ae877c4..f5c92d904 100644 --- a/kernel/drivers/usb/core/devio.c +++ b/kernel/drivers/usb/core/devio.c @@ -1203,10 +1203,11 @@ static int proc_getdriver(struct usb_dev_state *ps, void __user *arg) static int proc_connectinfo(struct usb_dev_state *ps, void __user *arg) { - struct usbdevfs_connectinfo ci = { - .devnum = ps->dev->devnum, - .slow = ps->dev->speed == USB_SPEED_LOW - }; + struct usbdevfs_connectinfo ci; + + memset(&ci, 0, sizeof(ci)); + ci.devnum = ps->dev->devnum; + ci.slow = ps->dev->speed == USB_SPEED_LOW; if (copy_to_user(arg, &ci, sizeof(ci))) return -EFAULT; @@ -1529,11 +1530,17 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb as->urb->start_frame = uurb->start_frame; as->urb->number_of_packets = number_of_packets; as->urb->stream_id = stream_id; - if (uurb->type == USBDEVFS_URB_TYPE_ISO || - ps->dev->speed == USB_SPEED_HIGH) - as->urb->interval = 1 << min(15, ep->desc.bInterval - 1); - else - as->urb->interval = ep->desc.bInterval; + + if (ep->desc.bInterval) { + if (uurb->type == USBDEVFS_URB_TYPE_ISO || + ps->dev->speed == USB_SPEED_HIGH || + ps->dev->speed >= USB_SPEED_SUPER) + as->urb->interval = 1 << + min(15, ep->desc.bInterval - 1); + else + as->urb->interval = ep->desc.bInterval; + } + as->urb->context = as; as->urb->complete = async_completed; for (totlen = u = 0; u < number_of_packets; u++) { diff --git a/kernel/drivers/usb/core/driver.c b/kernel/drivers/usb/core/driver.c index 56593a9a8..dadd1e8df 100644 --- a/kernel/drivers/usb/core/driver.c +++ b/kernel/drivers/usb/core/driver.c @@ -284,7 +284,7 @@ static int usb_probe_interface(struct device *dev) struct usb_device *udev = interface_to_usbdev(intf); const struct usb_device_id *id; int error = -ENODEV; - int lpm_disable_error; + int lpm_disable_error = -ENODEV; dev_dbg(dev, "%s\n", __func__); @@ -336,12 +336,14 @@ static int usb_probe_interface(struct device *dev) * setting during probe, that should also be fine. usb_set_interface() * will attempt to disable LPM, and fail if it can't disable it. */ - lpm_disable_error = usb_unlocked_disable_lpm(udev); - if (lpm_disable_error && driver->disable_hub_initiated_lpm) { - dev_err(&intf->dev, "%s Failed to disable LPM for driver %s\n.", - __func__, driver->name); - error = lpm_disable_error; - goto err; + if (driver->disable_hub_initiated_lpm) { + lpm_disable_error = usb_unlocked_disable_lpm(udev); + if (lpm_disable_error) { + dev_err(&intf->dev, "%s Failed to disable LPM for driver %s\n.", + __func__, driver->name); + error = lpm_disable_error; + goto err; + } } /* Carry out a deferred switch to altsetting 0 */ @@ -391,7 +393,8 @@ static int usb_unbind_interface(struct device *dev) struct usb_interface *intf = to_usb_interface(dev); struct usb_host_endpoint *ep, **eps = NULL; struct usb_device *udev; - int i, j, error, r, lpm_disable_error; + int i, j, error, r; + int lpm_disable_error = -ENODEV; intf->condition = USB_INTERFACE_UNBINDING; @@ -399,12 +402,13 @@ static int usb_unbind_interface(struct device *dev) udev = interface_to_usbdev(intf); error = usb_autoresume_device(udev); - /* Hub-initiated LPM policy may change, so attempt to disable LPM until + /* If hub-initiated LPM policy may change, attempt to disable LPM until * the driver is unbound. If LPM isn't disabled, that's fine because it * wouldn't be enabled unless all the bound interfaces supported * hub-initiated LPM. */ - lpm_disable_error = usb_unlocked_disable_lpm(udev); + if (driver->disable_hub_initiated_lpm) + lpm_disable_error = usb_unlocked_disable_lpm(udev); /* * Terminate all URBs for this interface unless the driver @@ -502,11 +506,15 @@ static int usb_unbind_interface(struct device *dev) int usb_driver_claim_interface(struct usb_driver *driver, struct usb_interface *iface, void *priv) { - struct device *dev = &iface->dev; + struct device *dev; struct usb_device *udev; int retval = 0; - int lpm_disable_error; + int lpm_disable_error = -ENODEV; + if (!iface) + return -ENODEV; + + dev = &iface->dev; if (dev->driver) return -EBUSY; @@ -522,12 +530,14 @@ int usb_driver_claim_interface(struct usb_driver *driver, iface->condition = USB_INTERFACE_BOUND; - /* Disable LPM until this driver is bound. */ - lpm_disable_error = usb_unlocked_disable_lpm(udev); - if (lpm_disable_error && driver->disable_hub_initiated_lpm) { - dev_err(&iface->dev, "%s Failed to disable LPM for driver %s\n.", - __func__, driver->name); - return -ENOMEM; + /* See the comment about disabling LPM in usb_probe_interface(). */ + if (driver->disable_hub_initiated_lpm) { + lpm_disable_error = usb_unlocked_disable_lpm(udev); + if (lpm_disable_error) { + dev_err(&iface->dev, "%s Failed to disable LPM for driver %s\n.", + __func__, driver->name); + return -ENOMEM; + } } /* Claimed interfaces are initially inactive (suspended) and diff --git a/kernel/drivers/usb/core/hcd-pci.c b/kernel/drivers/usb/core/hcd-pci.c index 9eb1cff28..40378487e 100644 --- a/kernel/drivers/usb/core/hcd-pci.c +++ b/kernel/drivers/usb/core/hcd-pci.c @@ -74,6 +74,15 @@ static void for_each_companion(struct pci_dev *pdev, struct usb_hcd *hcd, if (companion->bus != pdev->bus || PCI_SLOT(companion->devfn) != slot) continue; + + /* + * Companion device should be either UHCI,OHCI or EHCI host + * controller, otherwise skip. + */ + if (companion->class != CL_UHCI && companion->class != CL_OHCI && + companion->class != CL_EHCI) + continue; + companion_hcd = pci_get_drvdata(companion); if (!companion_hcd || !companion_hcd->self.root_hub) continue; @@ -197,7 +206,7 @@ int usb_hcd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id) * The xHCI driver has its own irq management * make sure irq setup is not touched for xhci in generic hcd code */ - if ((driver->flags & HCD_MASK) != HCD_USB3) { + if ((driver->flags & HCD_MASK) < HCD_USB3) { if (!dev->irq) { dev_err(&dev->dev, "Found HC with no IRQ. Check BIOS/PCI %s setup!\n", diff --git a/kernel/drivers/usb/core/hcd.c b/kernel/drivers/usb/core/hcd.c index a8f2f5bf2..5fc9a1472 100644 --- a/kernel/drivers/usb/core/hcd.c +++ b/kernel/drivers/usb/core/hcd.c @@ -1078,7 +1078,7 @@ static int register_root_hub(struct usb_hcd *hcd) retval = usb_get_bos_descriptor(usb_dev); if (!retval) { usb_dev->lpm_capable = usb_device_supports_lpm(usb_dev); - } else if (usb_dev->speed == USB_SPEED_SUPER) { + } else if (usb_dev->speed >= USB_SPEED_SUPER) { mutex_unlock(&usb_bus_list_lock); dev_dbg(parent_dev, "can't read %s bos descriptor %d\n", dev_name(&usb_dev->dev), retval); @@ -2112,7 +2112,7 @@ int usb_alloc_streams(struct usb_interface *interface, hcd = bus_to_hcd(dev->bus); if (!hcd->driver->alloc_streams || !hcd->driver->free_streams) return -EINVAL; - if (dev->speed != USB_SPEED_SUPER) + if (dev->speed < USB_SPEED_SUPER) return -EINVAL; if (dev->state < USB_STATE_CONFIGURED) return -ENODEV; @@ -2160,7 +2160,7 @@ int usb_free_streams(struct usb_interface *interface, dev = interface_to_usbdev(interface); hcd = bus_to_hcd(dev->bus); - if (dev->speed != USB_SPEED_SUPER) + if (dev->speed < USB_SPEED_SUPER) return -EINVAL; /* Double-free is not allowed */ diff --git a/kernel/drivers/usb/core/hub.c b/kernel/drivers/usb/core/hub.c index 1560f3f3e..780db8bb2 100644 --- a/kernel/drivers/usb/core/hub.c +++ b/kernel/drivers/usb/core/hub.c @@ -101,6 +101,7 @@ EXPORT_SYMBOL_GPL(ehci_cf_port_reset_rwsem); static void hub_release(struct kref *kref); static int usb_reset_and_verify_device(struct usb_device *udev); +static int hub_port_disable(struct usb_hub *hub, int port1, int set_state); static inline char *portspeed(struct usb_hub *hub, int portstatus) { @@ -298,7 +299,7 @@ static void usb_set_lpm_parameters(struct usb_device *udev) unsigned int hub_u1_del; unsigned int hub_u2_del; - if (!udev->lpm_capable || udev->speed != USB_SPEED_SUPER) + if (!udev->lpm_capable || udev->speed < USB_SPEED_SUPER) return; hub = usb_hub_to_struct_hub(udev->parent); @@ -883,88 +884,6 @@ static int hub_set_port_link_state(struct usb_hub *hub, int port1, } /* - * If USB 3.0 ports are placed into the Disabled state, they will no longer - * detect any device connects or disconnects. This is generally not what the - * USB core wants, since it expects a disabled port to produce a port status - * change event when a new device connects. - * - * Instead, set the link state to Disabled, wait for the link to settle into - * that state, clear any change bits, and then put the port into the RxDetect - * state. - */ -static int hub_usb3_port_disable(struct usb_hub *hub, int port1) -{ - int ret; - int total_time; - u16 portchange, portstatus; - - if (!hub_is_superspeed(hub->hdev)) - return -EINVAL; - - ret = hub_port_status(hub, port1, &portstatus, &portchange); - if (ret < 0) - return ret; - - /* - * USB controller Advanced Micro Devices, Inc. [AMD] FCH USB XHCI - * Controller [1022:7814] will have spurious result making the following - * usb 3.0 device hotplugging route to the 2.0 root hub and recognized - * as high-speed device if we set the usb 3.0 port link state to - * Disabled. Since it's already in USB_SS_PORT_LS_RX_DETECT state, we - * check the state here to avoid the bug. - */ - if ((portstatus & USB_PORT_STAT_LINK_STATE) == - USB_SS_PORT_LS_RX_DETECT) { - dev_dbg(&hub->ports[port1 - 1]->dev, - "Not disabling port; link state is RxDetect\n"); - return ret; - } - - ret = hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_SS_DISABLED); - if (ret) - return ret; - - /* Wait for the link to enter the disabled state. */ - for (total_time = 0; ; total_time += HUB_DEBOUNCE_STEP) { - ret = hub_port_status(hub, port1, &portstatus, &portchange); - if (ret < 0) - return ret; - - if ((portstatus & USB_PORT_STAT_LINK_STATE) == - USB_SS_PORT_LS_SS_DISABLED) - break; - if (total_time >= HUB_DEBOUNCE_TIMEOUT) - break; - msleep(HUB_DEBOUNCE_STEP); - } - if (total_time >= HUB_DEBOUNCE_TIMEOUT) - dev_warn(&hub->ports[port1 - 1]->dev, - "Could not disable after %d ms\n", total_time); - - return hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_RX_DETECT); -} - -static int hub_port_disable(struct usb_hub *hub, int port1, int set_state) -{ - struct usb_port *port_dev = hub->ports[port1 - 1]; - struct usb_device *hdev = hub->hdev; - int ret = 0; - - if (port_dev->child && set_state) - usb_set_device_state(port_dev->child, USB_STATE_NOTATTACHED); - if (!hub->error) { - if (hub_is_superspeed(hub->hdev)) - ret = hub_usb3_port_disable(hub, port1); - else - ret = usb_clear_port_feature(hdev, port1, - USB_PORT_FEAT_ENABLE); - } - if (ret && ret != -ENODEV) - dev_err(&port_dev->dev, "cannot disable (err = %d)\n", ret); - return ret; -} - -/* * Disable a port and mark a logical connect-change event, so that some * time later hub_wq will disconnect() any existing usb_device on the port * and will re-enumerate if there actually is a device attached. @@ -1036,14 +955,11 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) /* Continue a partial initialization */ if (type == HUB_INIT2 || type == HUB_INIT3) { - device_lock(hub->intfdev); + device_lock(&hdev->dev); /* Was the hub disconnected while we were waiting? */ - if (hub->disconnected) { - device_unlock(hub->intfdev); - kref_put(&hub->kref, hub_release); - return; - } + if (hub->disconnected) + goto disconnected; if (type == HUB_INIT2) goto init2; goto init3; @@ -1246,7 +1162,7 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) queue_delayed_work(system_power_efficient_wq, &hub->init_work, msecs_to_jiffies(delay)); - device_unlock(hub->intfdev); + device_unlock(&hdev->dev); return; /* Continues at init3: below */ } else { msleep(delay); @@ -1265,12 +1181,12 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type) /* Scan all ports that need attention */ kick_hub_wq(hub); - /* Allow autosuspend if it was suppressed */ - if (type <= HUB_INIT3) + if (type == HUB_INIT2 || type == HUB_INIT3) { + /* Allow autosuspend if it was suppressed */ + disconnected: usb_autopm_put_interface_async(to_usb_interface(hub->intfdev)); - - if (type == HUB_INIT2 || type == HUB_INIT3) - device_unlock(hub->intfdev); + device_unlock(&hdev->dev); + } kref_put(&hub->kref, hub_release); } @@ -1299,8 +1215,6 @@ static void hub_quiesce(struct usb_hub *hub, enum hub_quiescing_type type) struct usb_device *hdev = hub->hdev; int i; - cancel_delayed_work_sync(&hub->init_work); - /* hub_wq and related activity won't re-trigger */ hub->quiescing = 1; @@ -2645,7 +2559,7 @@ static unsigned hub_is_wusb(struct usb_hub *hub) */ static bool use_new_scheme(struct usb_device *udev, int retry) { - if (udev->speed == USB_SPEED_SUPER) + if (udev->speed >= USB_SPEED_SUPER) return false; return USE_NEW_SCHEME(retry); @@ -3985,7 +3899,7 @@ int usb_disable_lpm(struct usb_device *udev) struct usb_hcd *hcd; if (!udev || !udev->parent || - udev->speed != USB_SPEED_SUPER || + udev->speed < USB_SPEED_SUPER || !udev->lpm_capable || udev->state < USB_STATE_DEFAULT) return 0; @@ -4042,7 +3956,7 @@ void usb_enable_lpm(struct usb_device *udev) struct usb_hcd *hcd; if (!udev || !udev->parent || - udev->speed != USB_SPEED_SUPER || + udev->speed < USB_SPEED_SUPER || !udev->lpm_capable || udev->state < USB_STATE_DEFAULT) return; @@ -4078,6 +3992,26 @@ void usb_unlocked_enable_lpm(struct usb_device *udev) } EXPORT_SYMBOL_GPL(usb_unlocked_enable_lpm); +/* usb3 devices use U3 for disabled, make sure remote wakeup is disabled */ +static void hub_usb3_port_prepare_disable(struct usb_hub *hub, + struct usb_port *port_dev) +{ + struct usb_device *udev = port_dev->child; + int ret; + + if (udev && udev->port_is_suspended && udev->do_remote_wakeup) { + ret = hub_set_port_link_state(hub, port_dev->portnum, + USB_SS_PORT_LS_U0); + if (!ret) { + msleep(USB_RESUME_TIMEOUT); + ret = usb_disable_remote_wakeup(udev); + } + if (ret) + dev_warn(&udev->dev, + "Port disable: can't disable remote wake\n"); + udev->do_remote_wakeup = 0; + } +} #else /* CONFIG_PM */ @@ -4085,6 +4019,9 @@ EXPORT_SYMBOL_GPL(usb_unlocked_enable_lpm); #define hub_resume NULL #define hub_reset_resume NULL +static inline void hub_usb3_port_prepare_disable(struct usb_hub *hub, + struct usb_port *port_dev) { } + int usb_disable_lpm(struct usb_device *udev) { return 0; @@ -4120,6 +4057,34 @@ static int hub_handle_remote_wakeup(struct usb_hub *hub, unsigned int port, #endif /* CONFIG_PM */ +/* + * USB-3 does not have a similar link state as USB-2 that will avoid negotiating + * a connection with a plugged-in cable but will signal the host when the cable + * is unplugged. Disable remote wake and set link state to U3 for USB-3 devices + */ +static int hub_port_disable(struct usb_hub *hub, int port1, int set_state) +{ + struct usb_port *port_dev = hub->ports[port1 - 1]; + struct usb_device *hdev = hub->hdev; + int ret = 0; + + if (!hub->error) { + if (hub_is_superspeed(hub->hdev)) { + hub_usb3_port_prepare_disable(hub, port_dev); + ret = hub_set_port_link_state(hub, port_dev->portnum, + USB_SS_PORT_LS_U3); + } else { + ret = usb_clear_port_feature(hdev, port1, + USB_PORT_FEAT_ENABLE); + } + } + if (port_dev->child && set_state) + usb_set_device_state(port_dev->child, USB_STATE_NOTATTACHED); + if (ret && ret != -ENODEV) + dev_err(&port_dev->dev, "cannot disable (err = %d)\n", ret); + return ret; +} + /* USB 2.0 spec, 7.1.7.3 / fig 7-29: * @@ -4277,7 +4242,7 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, { struct usb_device *hdev = hub->hdev; struct usb_hcd *hcd = bus_to_hcd(hdev->bus); - int i, j, retval; + int retries, operations, retval, i; unsigned delay = HUB_SHORT_RESET_TIME; enum usb_device_speed oldspeed = udev->speed; const char *speed; @@ -4308,7 +4273,9 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, retval = -ENODEV; - if (oldspeed != USB_SPEED_UNKNOWN && oldspeed != udev->speed) { + /* Don't allow speed changes at reset, except usb 3.0 to faster */ + if (oldspeed != USB_SPEED_UNKNOWN && oldspeed != udev->speed && + !(oldspeed == USB_SPEED_SUPER && udev->speed > oldspeed)) { dev_dbg(&udev->dev, "device reset changed speed!\n"); goto fail; } @@ -4320,6 +4287,7 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, * reported as 0xff in the device descriptor). WUSB1.0[4.8.1]. */ switch (udev->speed) { + case USB_SPEED_SUPER_PLUS: case USB_SPEED_SUPER: case USB_SPEED_WIRELESS: /* fixed at 512 */ udev->ep0.desc.wMaxPacketSize = cpu_to_le16(512); @@ -4346,7 +4314,7 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, else speed = usb_speed_string(udev->speed); - if (udev->speed != USB_SPEED_SUPER) + if (udev->speed < USB_SPEED_SUPER) dev_info(&udev->dev, "%s %s USB device number %d using %s\n", (udev->config) ? "reset" : "new", speed, @@ -4379,7 +4347,7 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, * first 8 bytes of the device descriptor to get the ep0 maxpacket * value. */ - for (i = 0; i < GET_DESCRIPTOR_TRIES; (++i, msleep(100))) { + for (retries = 0; retries < GET_DESCRIPTOR_TRIES; (++retries, msleep(100))) { bool did_new_scheme = false; if (use_new_scheme(udev, retry_counter)) { @@ -4406,7 +4374,7 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, * 255 is for WUSB devices, we actually need to use * 512 (WUSB1.0[4.8.1]). */ - for (j = 0; j < 3; ++j) { + for (operations = 0; operations < 3; ++operations) { buf->bMaxPacketSize0 = 0; r = usb_control_msg(udev, usb_rcvaddr0pipe(), USB_REQ_GET_DESCRIPTOR, USB_DIR_IN, @@ -4426,7 +4394,13 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, r = -EPROTO; break; } - if (r == 0) + /* + * Some devices time out if they are powered on + * when already connected. They need a second + * reset. But only on the first attempt, + * lest we get into a time out/reset loop + */ + if (r == 0 || (r == -ETIMEDOUT && retries == 0)) break; } udev->descriptor.bMaxPacketSize0 = @@ -4458,7 +4432,7 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, * authorization will assign the final address. */ if (udev->wusb == 0) { - for (j = 0; j < SET_ADDRESS_TRIES; ++j) { + for (operations = 0; operations < SET_ADDRESS_TRIES; ++operations) { retval = hub_set_address(udev, devnum); if (retval >= 0) break; @@ -4470,11 +4444,12 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, devnum, retval); goto fail; } - if (udev->speed == USB_SPEED_SUPER) { + if (udev->speed >= USB_SPEED_SUPER) { devnum = udev->devnum; dev_info(&udev->dev, - "%s SuperSpeed USB device number %d using %s\n", + "%s SuperSpeed%s USB device number %d using %s\n", (udev->config) ? "reset" : "new", + (udev->speed == USB_SPEED_SUPER_PLUS) ? "Plus" : "", devnum, udev->bus->controller->driver->name); } @@ -4513,7 +4488,7 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, * 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) && + 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"); @@ -4524,7 +4499,7 @@ hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, } if (udev->descriptor.bMaxPacketSize0 == 0xff || - udev->speed == USB_SPEED_SUPER) + udev->speed >= USB_SPEED_SUPER) i = 512; else i = udev->descriptor.bMaxPacketSize0; @@ -4734,7 +4709,7 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus, udev->level = hdev->level + 1; udev->wusb = hub_is_wusb(hub); - /* Only USB 3.0 devices are connected to SuperSpeed hubs. */ + /* Devices connected to SuperSpeed hubs are USB 3.0 or later */ if (hub_is_superspeed(hub->hdev)) udev->speed = USB_SPEED_SUPER; else @@ -5386,6 +5361,7 @@ static int usb_reset_and_verify_device(struct usb_device *udev) } bos = udev->bos; + udev->bos = NULL; for (i = 0; i < SET_CONFIG_TRIES; ++i) { @@ -5478,11 +5454,8 @@ done: usb_set_usb2_hardware_lpm(udev, 1); usb_unlocked_enable_lpm(udev); usb_enable_ltm(udev); - /* release the new BOS descriptor allocated by hub_port_init() */ - if (udev->bos != bos) { - usb_release_bos_descriptor(udev); - udev->bos = bos; - } + usb_release_bos_descriptor(udev); + udev->bos = bos; return 0; re_enumerate: diff --git a/kernel/drivers/usb/core/quirks.c b/kernel/drivers/usb/core/quirks.c index 6dc810bce..24f9f9896 100644 --- a/kernel/drivers/usb/core/quirks.c +++ b/kernel/drivers/usb/core/quirks.c @@ -37,6 +37,10 @@ static const struct usb_device_id usb_quirk_list[] = { /* CBM - Flash disk */ { USB_DEVICE(0x0204, 0x6025), .driver_info = USB_QUIRK_RESET_RESUME }, + /* WORLDE easy key (easykey.25) MIDI controller */ + { USB_DEVICE(0x0218, 0x0401), .driver_info = + USB_QUIRK_CONFIG_INTF_STRINGS }, + /* HP 5300/5370C scanner */ { USB_DEVICE(0x03f0, 0x0701), .driver_info = USB_QUIRK_STRING_FETCH_255 }, @@ -44,6 +48,9 @@ static const struct usb_device_id usb_quirk_list[] = { /* Creative SB Audigy 2 NX */ { USB_DEVICE(0x041e, 0x3020), .driver_info = USB_QUIRK_RESET_RESUME }, + /* USB3503 */ + { USB_DEVICE(0x0424, 0x3503), .driver_info = USB_QUIRK_RESET_RESUME }, + /* Microsoft Wireless Laser Mouse 6000 Receiver */ { USB_DEVICE(0x045e, 0x00e1), .driver_info = USB_QUIRK_RESET_RESUME }, @@ -125,6 +132,9 @@ static const struct usb_device_id usb_quirk_list[] = { { USB_DEVICE(0x04f3, 0x016f), .driver_info = USB_QUIRK_DEVICE_QUALIFIER }, + { USB_DEVICE(0x04f3, 0x0381), .driver_info = + USB_QUIRK_NO_LPM }, + { USB_DEVICE(0x04f3, 0x21b8), .driver_info = USB_QUIRK_DEVICE_QUALIFIER }, @@ -173,6 +183,10 @@ static const struct usb_device_id usb_quirk_list[] = { /* MAYA44USB sound device */ { USB_DEVICE(0x0a92, 0x0091), .driver_info = USB_QUIRK_RESET_RESUME }, + /* ASUS Base Station(T100) */ + { USB_DEVICE(0x0b05, 0x17e0), .driver_info = + USB_QUIRK_IGNORE_REMOTE_WAKEUP }, + /* Action Semiconductor flash disk */ { USB_DEVICE(0x10d6, 0x2200), .driver_info = USB_QUIRK_STRING_FETCH_255 }, @@ -188,26 +202,22 @@ static const struct usb_device_id usb_quirk_list[] = { { USB_DEVICE(0x1908, 0x1315), .driver_info = USB_QUIRK_HONOR_BNUMINTERFACES }, - /* INTEL VALUE SSD */ - { USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME }, - - /* USB3503 */ - { USB_DEVICE(0x0424, 0x3503), .driver_info = USB_QUIRK_RESET_RESUME }, - - /* ASUS Base Station(T100) */ - { USB_DEVICE(0x0b05, 0x17e0), .driver_info = - USB_QUIRK_IGNORE_REMOTE_WAKEUP }, - /* Protocol and OTG Electrical Test Device */ { USB_DEVICE(0x1a0a, 0x0200), .driver_info = USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL }, + /* Acer C120 LED Projector */ + { USB_DEVICE(0x1de1, 0xc102), .driver_info = USB_QUIRK_NO_LPM }, + /* Blackmagic Design Intensity Shuttle */ { USB_DEVICE(0x1edb, 0xbd3b), .driver_info = USB_QUIRK_NO_LPM }, /* Blackmagic Design UltraStudio SDI */ { USB_DEVICE(0x1edb, 0xbd4f), .driver_info = USB_QUIRK_NO_LPM }, + /* INTEL VALUE SSD */ + { USB_DEVICE(0x8086, 0xf1a5), .driver_info = USB_QUIRK_RESET_RESUME }, + { } /* terminating entry must be last */ }; diff --git a/kernel/drivers/usb/core/urb.c b/kernel/drivers/usb/core/urb.c index 3d274778c..c601e25b6 100644 --- a/kernel/drivers/usb/core/urb.c +++ b/kernel/drivers/usb/core/urb.c @@ -401,7 +401,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) /* SuperSpeed isoc endpoints have up to 16 bursts of up to * 3 packets each */ - if (dev->speed == USB_SPEED_SUPER) { + if (dev->speed >= USB_SPEED_SUPER) { int burst = 1 + ep->ss_ep_comp.bMaxBurst; int mult = USB_SS_MULT(ep->ss_ep_comp.bmAttributes); max *= burst; @@ -499,6 +499,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags) } /* too big? */ switch (dev->speed) { + case USB_SPEED_SUPER_PLUS: case USB_SPEED_SUPER: /* units are 125us */ /* Handle up to 2^(16-1) microframes */ if (urb->interval > (1 << 15)) diff --git a/kernel/drivers/usb/core/usb.h b/kernel/drivers/usb/core/usb.h index 05b5e17ab..53318126e 100644 --- a/kernel/drivers/usb/core/usb.h +++ b/kernel/drivers/usb/core/usb.h @@ -45,7 +45,7 @@ static inline unsigned usb_get_max_power(struct usb_device *udev, struct usb_host_config *c) { /* SuperSpeed power is in 8 mA units; others are in 2 mA units */ - unsigned mul = (udev->speed == USB_SPEED_SUPER ? 8 : 2); + unsigned mul = (udev->speed >= USB_SPEED_SUPER ? 8 : 2); return c->desc.bMaxPower * mul; } |