Lines Matching refs:udev
113 static int usb_reset_and_verify_device(struct usb_device *udev);
140 int usb_device_supports_lpm(struct usb_device *udev) in usb_device_supports_lpm() argument
143 if (udev->quirks & USB_QUIRK_NO_LPM) in usb_device_supports_lpm()
149 if (udev->speed == USB_SPEED_HIGH || udev->speed == USB_SPEED_FULL) { in usb_device_supports_lpm()
150 if (udev->bos->ext_cap && in usb_device_supports_lpm()
152 le32_to_cpu(udev->bos->ext_cap->bmAttributes))) in usb_device_supports_lpm()
162 if (!udev->bos->ss_cap) { in usb_device_supports_lpm()
163 dev_info(&udev->dev, "No LPM exit latency info found, disabling LPM.\n"); in usb_device_supports_lpm()
167 if (udev->bos->ss_cap->bU1devExitLat == 0 && in usb_device_supports_lpm()
168 udev->bos->ss_cap->bU2DevExitLat == 0) { in usb_device_supports_lpm()
169 if (udev->parent) in usb_device_supports_lpm()
170 dev_info(&udev->dev, "LPM exit latency is zeroed, disabling LPM.\n"); in usb_device_supports_lpm()
172 dev_info(&udev->dev, "We don't know the algorithms for LPM for this host, disabling LPM.\n"); in usb_device_supports_lpm()
176 if (!udev->parent || udev->parent->lpm_capable) in usb_device_supports_lpm()
185 static void usb_set_lpm_mel(struct usb_device *udev, in usb_set_lpm_mel() argument
230 static void usb_set_lpm_pel(struct usb_device *udev, in usb_set_lpm_pel() argument
284 static void usb_set_lpm_sel(struct usb_device *udev, in usb_set_lpm_sel() argument
294 for (parent = udev->parent, num_hubs = 0; parent->parent; in usb_set_lpm_sel()
307 static void usb_set_lpm_parameters(struct usb_device *udev) in usb_set_lpm_parameters() argument
316 if (!udev->lpm_capable || udev->speed < USB_SPEED_SUPER) in usb_set_lpm_parameters()
319 hub = usb_hub_to_struct_hub(udev->parent); in usb_set_lpm_parameters()
326 udev_u1_del = udev->bos->ss_cap->bU1devExitLat; in usb_set_lpm_parameters()
327 udev_u2_del = le16_to_cpu(udev->bos->ss_cap->bU2DevExitLat); in usb_set_lpm_parameters()
328 hub_u1_del = udev->parent->bos->ss_cap->bU1devExitLat; in usb_set_lpm_parameters()
329 hub_u2_del = le16_to_cpu(udev->parent->bos->ss_cap->bU2DevExitLat); in usb_set_lpm_parameters()
331 usb_set_lpm_mel(udev, &udev->u1_params, udev_u1_del, in usb_set_lpm_parameters()
332 hub, &udev->parent->u1_params, hub_u1_del); in usb_set_lpm_parameters()
334 usb_set_lpm_mel(udev, &udev->u2_params, udev_u2_del, in usb_set_lpm_parameters()
335 hub, &udev->parent->u2_params, hub_u2_del); in usb_set_lpm_parameters()
356 usb_set_lpm_pel(udev, &udev->u1_params, udev_u1_del, in usb_set_lpm_parameters()
357 hub, &udev->parent->u1_params, hub_u1_del, in usb_set_lpm_parameters()
365 usb_set_lpm_pel(udev, &udev->u2_params, udev_u2_del, in usb_set_lpm_parameters()
366 hub, &udev->parent->u2_params, hub_u2_del, in usb_set_lpm_parameters()
370 usb_set_lpm_sel(udev, &udev->u1_params); in usb_set_lpm_parameters()
371 usb_set_lpm_sel(udev, &udev->u2_params); in usb_set_lpm_parameters()
860 struct usb_device *udev = urb->dev; in usb_hub_clear_tt_buffer() local
862 struct usb_tt *tt = udev->tt; in usb_hub_clear_tt_buffer()
872 dev_err(&udev->dev, "can't save CLEAR_TT_BUFFER state\n"); in usb_hub_clear_tt_buffer()
878 clear->tt = tt->multi ? udev->ttport : 1; in usb_hub_clear_tt_buffer()
880 clear->devinfo |= ((u16)udev->devaddr) << 4; in usb_hub_clear_tt_buffer()
888 clear->hcd = bus_to_hcd(udev->bus); in usb_hub_clear_tt_buffer()
988 int usb_remove_device(struct usb_device *udev) in usb_remove_device() argument
994 if (!udev->parent) /* Can't remove a root hub */ in usb_remove_device()
996 hub = usb_hub_to_struct_hub(udev->parent); in usb_remove_device()
1003 set_bit(udev->portnum, hub->removed_bits); in usb_remove_device()
1004 hub_port_logical_disconnect(hub, udev->portnum); in usb_remove_device()
1115 struct usb_device *udev = port_dev->child; in hub_activate() local
1123 if (udev || (portstatus & USB_PORT_STAT_CONNECTION)) in hub_activate()
1136 !udev || in hub_activate()
1137 udev->state == USB_STATE_NOTATTACHED)) { in hub_activate()
1194 if (!udev || udev->state == USB_STATE_NOTATTACHED) { in hub_activate()
1201 if (udev || (portstatus & USB_PORT_STAT_CONNECTION) || in hub_activate()
1223 } else if (udev->persist_enabled) { in hub_activate()
1225 udev->reset_resume = 1; in hub_activate()
1235 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in hub_activate()
1991 bool usb_device_is_owned(struct usb_device *udev) in usb_device_is_owned() argument
1995 if (udev->state == USB_STATE_NOTATTACHED || !udev->parent) in usb_device_is_owned()
1997 hub = usb_hub_to_struct_hub(udev->parent); in usb_device_is_owned()
1998 return !!hub->ports[udev->portnum - 1]->port_owner; in usb_device_is_owned()
2001 static void recursively_mark_NOTATTACHED(struct usb_device *udev) in recursively_mark_NOTATTACHED() argument
2003 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in recursively_mark_NOTATTACHED()
2006 for (i = 0; i < udev->maxchild; ++i) { in recursively_mark_NOTATTACHED()
2010 if (udev->state == USB_STATE_SUSPENDED) in recursively_mark_NOTATTACHED()
2011 udev->active_duration -= jiffies; in recursively_mark_NOTATTACHED()
2012 udev->state = USB_STATE_NOTATTACHED; in recursively_mark_NOTATTACHED()
2036 void usb_set_device_state(struct usb_device *udev, in usb_set_device_state() argument
2043 if (udev->state == USB_STATE_NOTATTACHED) in usb_set_device_state()
2050 if (udev->parent) { in usb_set_device_state()
2051 if (udev->state == USB_STATE_SUSPENDED in usb_set_device_state()
2055 wakeup = (udev->quirks & in usb_set_device_state()
2057 udev->actconfig->desc.bmAttributes & in usb_set_device_state()
2062 if (udev->state == USB_STATE_SUSPENDED && in usb_set_device_state()
2064 udev->active_duration -= jiffies; in usb_set_device_state()
2066 udev->state != USB_STATE_SUSPENDED) in usb_set_device_state()
2067 udev->active_duration += jiffies; in usb_set_device_state()
2068 udev->state = new_state; in usb_set_device_state()
2070 recursively_mark_NOTATTACHED(udev); in usb_set_device_state()
2073 device_set_wakeup_capable(&udev->dev, wakeup); in usb_set_device_state()
2106 static void choose_devnum(struct usb_device *udev) in choose_devnum() argument
2109 struct usb_bus *bus = udev->bus; in choose_devnum()
2113 if (udev->wusb) { in choose_devnum()
2114 devnum = udev->portnum + 1; in choose_devnum()
2128 udev->devnum = devnum; in choose_devnum()
2133 static void release_devnum(struct usb_device *udev) in release_devnum() argument
2135 if (udev->devnum > 0) { in release_devnum()
2136 clear_bit(udev->devnum, udev->bus->devmap.devicemap); in release_devnum()
2137 udev->devnum = -1; in release_devnum()
2141 static void update_devnum(struct usb_device *udev, int devnum) in update_devnum() argument
2144 if (!udev->wusb) in update_devnum()
2145 udev->devnum = devnum; in update_devnum()
2146 if (!udev->devaddr) in update_devnum()
2147 udev->devaddr = (u8)devnum; in update_devnum()
2150 static void hub_free_dev(struct usb_device *udev) in hub_free_dev() argument
2152 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_free_dev()
2155 if (hcd->driver->free_dev && udev->parent) in hub_free_dev()
2156 hcd->driver->free_dev(hcd, udev); in hub_free_dev()
2159 static void hub_disconnect_children(struct usb_device *udev) in hub_disconnect_children() argument
2161 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in hub_disconnect_children()
2165 for (i = 0; i < udev->maxchild; i++) { in hub_disconnect_children()
2190 struct usb_device *udev = *pdev; in usb_disconnect() local
2198 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in usb_disconnect()
2199 dev_info(&udev->dev, "USB disconnect, device number %d\n", in usb_disconnect()
2200 udev->devnum); in usb_disconnect()
2206 pm_runtime_barrier(&udev->dev); in usb_disconnect()
2208 usb_lock_device(udev); in usb_disconnect()
2210 hub_disconnect_children(udev); in usb_disconnect()
2216 dev_dbg(&udev->dev, "unregistering device\n"); in usb_disconnect()
2217 usb_disable_device(udev, 0); in usb_disconnect()
2218 usb_hcd_synchronize_unlinks(udev); in usb_disconnect()
2220 if (udev->parent) { in usb_disconnect()
2221 port1 = udev->portnum; in usb_disconnect()
2222 hub = usb_hub_to_struct_hub(udev->parent); in usb_disconnect()
2225 sysfs_remove_link(&udev->dev.kobj, "port"); in usb_disconnect()
2236 usb_remove_ep_devs(&udev->ep0); in usb_disconnect()
2237 usb_unlock_device(udev); in usb_disconnect()
2243 device_del(&udev->dev); in usb_disconnect()
2248 release_devnum(udev); in usb_disconnect()
2258 hub_free_dev(udev); in usb_disconnect()
2260 put_device(&udev->dev); in usb_disconnect()
2264 static void show_string(struct usb_device *udev, char *id, char *string) in show_string() argument
2268 dev_info(&udev->dev, "%s: %s\n", id, string); in show_string()
2271 static void announce_device(struct usb_device *udev) in announce_device() argument
2273 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); in announce_device()
2275 dev_info(&udev->dev, in announce_device()
2277 le16_to_cpu(udev->descriptor.idVendor), in announce_device()
2278 le16_to_cpu(udev->descriptor.idProduct), in announce_device()
2280 dev_info(&udev->dev, in announce_device()
2282 udev->descriptor.iManufacturer, in announce_device()
2283 udev->descriptor.iProduct, in announce_device()
2284 udev->descriptor.iSerialNumber); in announce_device()
2285 show_string(udev, "Product", udev->product); in announce_device()
2286 show_string(udev, "Manufacturer", udev->manufacturer); in announce_device()
2287 show_string(udev, "SerialNumber", udev->serial); in announce_device()
2290 static inline void announce_device(struct usb_device *udev) { } in announce_device() argument
2302 static int usb_enumerate_device_otg(struct usb_device *udev) in usb_enumerate_device_otg() argument
2312 if (!udev->bus->is_b_host in usb_enumerate_device_otg()
2313 && udev->config in usb_enumerate_device_otg()
2314 && udev->parent == udev->bus->root_hub) { in usb_enumerate_device_otg()
2316 struct usb_bus *bus = udev->bus; in usb_enumerate_device_otg()
2317 unsigned port1 = udev->portnum; in usb_enumerate_device_otg()
2320 err = __usb_get_extra_descriptor(udev->rawdescriptors[0], in usb_enumerate_device_otg()
2321 le16_to_cpu(udev->config[0].desc.wTotalLength), in usb_enumerate_device_otg()
2326 dev_info(&udev->dev, "Dual-Role OTG device on %sHNP port\n", in usb_enumerate_device_otg()
2332 err = usb_control_msg(udev, in usb_enumerate_device_otg()
2333 usb_sndctrlpipe(udev, 0), in usb_enumerate_device_otg()
2343 dev_err(&udev->dev, "can't set HNP mode: %d\n", in usb_enumerate_device_otg()
2350 err = usb_control_msg(udev, in usb_enumerate_device_otg()
2351 usb_sndctrlpipe(udev, 0), in usb_enumerate_device_otg()
2357 dev_err(&udev->dev, in usb_enumerate_device_otg()
2381 static int usb_enumerate_device(struct usb_device *udev) in usb_enumerate_device() argument
2384 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_enumerate_device()
2386 if (udev->config == NULL) { in usb_enumerate_device()
2387 err = usb_get_configuration(udev); in usb_enumerate_device()
2390 dev_err(&udev->dev, "can't read configurations, error %d\n", in usb_enumerate_device()
2397 udev->product = usb_cache_string(udev, udev->descriptor.iProduct); in usb_enumerate_device()
2398 udev->manufacturer = usb_cache_string(udev, in usb_enumerate_device()
2399 udev->descriptor.iManufacturer); in usb_enumerate_device()
2400 udev->serial = usb_cache_string(udev, udev->descriptor.iSerialNumber); in usb_enumerate_device()
2402 err = usb_enumerate_device_otg(udev); in usb_enumerate_device()
2407 !is_targeted(udev)) { in usb_enumerate_device()
2411 if (IS_ENABLED(CONFIG_USB_OTG) && (udev->bus->b_hnp_enable in usb_enumerate_device()
2412 || udev->bus->is_b_host)) { in usb_enumerate_device()
2413 err = usb_port_suspend(udev, PMSG_AUTO_SUSPEND); in usb_enumerate_device()
2415 dev_dbg(&udev->dev, "HNP fail, %d\n", err); in usb_enumerate_device()
2420 usb_detect_interface_quirks(udev); in usb_enumerate_device()
2425 static void set_usb_port_removable(struct usb_device *udev) in set_usb_port_removable() argument
2427 struct usb_device *hdev = udev->parent; in set_usb_port_removable()
2429 u8 port = udev->portnum; in set_usb_port_removable()
2436 hub = usb_hub_to_struct_hub(udev->parent); in set_usb_port_removable()
2442 switch (hub->ports[udev->portnum - 1]->connect_type) { in set_usb_port_removable()
2444 udev->removable = USB_DEVICE_REMOVABLE; in set_usb_port_removable()
2448 udev->removable = USB_DEVICE_FIXED; in set_usb_port_removable()
2473 udev->removable = USB_DEVICE_REMOVABLE; in set_usb_port_removable()
2475 udev->removable = USB_DEVICE_FIXED; in set_usb_port_removable()
2500 int usb_new_device(struct usb_device *udev) in usb_new_device() argument
2504 if (udev->parent) { in usb_new_device()
2509 device_init_wakeup(&udev->dev, 0); in usb_new_device()
2513 pm_runtime_set_active(&udev->dev); in usb_new_device()
2514 pm_runtime_get_noresume(&udev->dev); in usb_new_device()
2515 pm_runtime_use_autosuspend(&udev->dev); in usb_new_device()
2516 pm_runtime_enable(&udev->dev); in usb_new_device()
2521 usb_disable_autosuspend(udev); in usb_new_device()
2523 err = usb_enumerate_device(udev); /* Read descriptors */ in usb_new_device()
2526 dev_dbg(&udev->dev, "udev %d, busnum %d, minor = %d\n", in usb_new_device()
2527 udev->devnum, udev->bus->busnum, in usb_new_device()
2528 (((udev->bus->busnum-1) * 128) + (udev->devnum-1))); in usb_new_device()
2530 udev->dev.devt = MKDEV(USB_DEVICE_MAJOR, in usb_new_device()
2531 (((udev->bus->busnum-1) * 128) + (udev->devnum-1))); in usb_new_device()
2534 announce_device(udev); in usb_new_device()
2536 if (udev->serial) in usb_new_device()
2537 add_device_randomness(udev->serial, strlen(udev->serial)); in usb_new_device()
2538 if (udev->product) in usb_new_device()
2539 add_device_randomness(udev->product, strlen(udev->product)); in usb_new_device()
2540 if (udev->manufacturer) in usb_new_device()
2541 add_device_randomness(udev->manufacturer, in usb_new_device()
2542 strlen(udev->manufacturer)); in usb_new_device()
2544 device_enable_async_suspend(&udev->dev); in usb_new_device()
2547 if (udev->parent) in usb_new_device()
2548 set_usb_port_removable(udev); in usb_new_device()
2554 err = device_add(&udev->dev); in usb_new_device()
2556 dev_err(&udev->dev, "can't device_add, error %d\n", err); in usb_new_device()
2561 if (udev->parent) { in usb_new_device()
2562 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_new_device()
2563 int port1 = udev->portnum; in usb_new_device()
2566 err = sysfs_create_link(&udev->dev.kobj, in usb_new_device()
2572 &udev->dev.kobj, "device"); in usb_new_device()
2574 sysfs_remove_link(&udev->dev.kobj, "port"); in usb_new_device()
2582 (void) usb_create_ep_devs(&udev->dev, &udev->ep0, udev); in usb_new_device()
2583 usb_mark_last_busy(udev); in usb_new_device()
2584 pm_runtime_put_sync_autosuspend(&udev->dev); in usb_new_device()
2588 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in usb_new_device()
2589 pm_runtime_disable(&udev->dev); in usb_new_device()
2590 pm_runtime_set_suspended(&udev->dev); in usb_new_device()
2729 static bool use_new_scheme(struct usb_device *udev, int retry, in use_new_scheme() argument
2743 if (udev->speed >= USB_SPEED_SUPER) in use_new_scheme()
2776 struct usb_device *udev, unsigned int delay, bool warm) in hub_port_wait_reset() argument
2845 if (!udev) in hub_port_wait_reset()
2850 udev->rx_lanes = USB_EXT_PORT_RX_LANES(ext_portstatus) + 1; in hub_port_wait_reset()
2851 udev->tx_lanes = USB_EXT_PORT_TX_LANES(ext_portstatus) + 1; in hub_port_wait_reset()
2853 udev->rx_lanes = 1; in hub_port_wait_reset()
2854 udev->tx_lanes = 1; in hub_port_wait_reset()
2857 udev->speed = USB_SPEED_WIRELESS; in hub_port_wait_reset()
2861 udev->speed = USB_SPEED_SUPER_PLUS; in hub_port_wait_reset()
2863 udev->speed = USB_SPEED_SUPER; in hub_port_wait_reset()
2865 udev->speed = USB_SPEED_HIGH; in hub_port_wait_reset()
2867 udev->speed = USB_SPEED_LOW; in hub_port_wait_reset()
2869 udev->speed = USB_SPEED_FULL; in hub_port_wait_reset()
2875 struct usb_device *udev, unsigned int delay, bool warm) in hub_port_reset() argument
2916 status = hub_port_wait_reset(hub, port1, udev, delay, in hub_port_reset()
2937 if (udev) in hub_port_reset()
2987 if (udev) { in hub_port_reset()
2988 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_port_reset()
2990 update_devnum(udev, 0); in hub_port_reset()
2995 hcd->driver->reset_device(hcd, udev); in hub_port_reset()
2997 usb_set_device_state(udev, USB_STATE_DEFAULT); in hub_port_reset()
3000 if (udev) in hub_port_reset()
3001 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in hub_port_reset()
3062 static int check_port_resume_type(struct usb_device *udev, in check_port_resume_type() argument
3071 if (status == 0 && udev->reset_resume in check_port_resume_type()
3093 else if (!(portstatus & USB_PORT_STAT_ENABLE) && !udev->reset_resume) { in check_port_resume_type()
3094 if (udev->persist_enabled) in check_port_resume_type()
3095 udev->reset_resume = 1; in check_port_resume_type()
3103 } else if (udev->reset_resume) { in check_port_resume_type()
3126 int usb_disable_ltm(struct usb_device *udev) in usb_disable_ltm() argument
3128 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_disable_ltm()
3132 !usb_device_supports_ltm(udev)) in usb_disable_ltm()
3138 if (!udev->actconfig) in usb_disable_ltm()
3141 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_ltm()
3148 void usb_enable_ltm(struct usb_device *udev) in usb_enable_ltm() argument
3150 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_enable_ltm()
3154 !usb_device_supports_ltm(udev)) in usb_enable_ltm()
3160 if (!udev->actconfig) in usb_enable_ltm()
3163 usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_ltm()
3180 static int usb_enable_remote_wakeup(struct usb_device *udev) in usb_enable_remote_wakeup() argument
3182 if (udev->speed < USB_SPEED_SUPER) in usb_enable_remote_wakeup()
3183 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_remote_wakeup()
3188 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_remote_wakeup()
3206 static int usb_disable_remote_wakeup(struct usb_device *udev) in usb_disable_remote_wakeup() argument
3208 if (udev->speed < USB_SPEED_SUPER) in usb_disable_remote_wakeup()
3209 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_remote_wakeup()
3214 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_remote_wakeup()
3221 unsigned usb_wakeup_enabled_descendants(struct usb_device *udev) in usb_wakeup_enabled_descendants() argument
3223 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in usb_wakeup_enabled_descendants()
3225 return udev->do_remote_wakeup + in usb_wakeup_enabled_descendants()
3278 int usb_port_suspend(struct usb_device *udev, pm_message_t msg) in usb_port_suspend() argument
3280 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_suspend()
3281 struct usb_port *port_dev = hub->ports[udev->portnum - 1]; in usb_port_suspend()
3282 int port1 = udev->portnum; in usb_port_suspend()
3294 if (udev->do_remote_wakeup) { in usb_port_suspend()
3295 status = usb_enable_remote_wakeup(udev); in usb_port_suspend()
3297 dev_dbg(&udev->dev, "won't remote wakeup, status %d\n", in usb_port_suspend()
3306 usb_disable_usb2_hardware_lpm(udev); in usb_port_suspend()
3308 if (usb_disable_ltm(udev)) { in usb_port_suspend()
3309 dev_err(&udev->dev, "Failed to disable LTM before suspend\n"); in usb_port_suspend()
3330 else if (PMSG_IS_AUTO(msg) || usb_wakeup_enabled_descendants(udev) > 0) in usb_port_suspend()
3341 usb_enable_ltm(udev); in usb_port_suspend()
3344 usb_enable_usb2_hardware_lpm(udev); in usb_port_suspend()
3346 if (udev->do_remote_wakeup) in usb_port_suspend()
3347 (void) usb_disable_remote_wakeup(udev); in usb_port_suspend()
3354 dev_dbg(&udev->dev, "usb %ssuspend, wakeup %d\n", in usb_port_suspend()
3356 udev->do_remote_wakeup); in usb_port_suspend()
3358 udev->port_is_suspended = 1; in usb_port_suspend()
3363 usb_set_device_state(udev, USB_STATE_SUSPENDED); in usb_port_suspend()
3366 if (status == 0 && !udev->do_remote_wakeup && udev->persist_enabled in usb_port_suspend()
3387 static int finish_port_resume(struct usb_device *udev) in finish_port_resume() argument
3393 dev_dbg(&udev->dev, "%s\n", in finish_port_resume()
3394 udev->reset_resume ? "finish reset-resume" : "finish resume"); in finish_port_resume()
3401 usb_set_device_state(udev, udev->actconfig in finish_port_resume()
3410 if (udev->reset_resume) { in finish_port_resume()
3418 if (udev->quirks & USB_QUIRK_RESET) in finish_port_resume()
3421 status = usb_reset_and_verify_device(udev); in finish_port_resume()
3430 status = usb_get_std_status(udev, USB_RECIP_DEVICE, 0, &devstatus); in finish_port_resume()
3433 if (status && !udev->reset_resume && udev->persist_enabled) { in finish_port_resume()
3434 dev_dbg(&udev->dev, "retry with reset-resume\n"); in finish_port_resume()
3435 udev->reset_resume = 1; in finish_port_resume()
3441 dev_dbg(&udev->dev, "gone after usb resume? status %d\n", in finish_port_resume()
3449 } else if (udev->actconfig && !udev->reset_resume) { in finish_port_resume()
3450 if (udev->speed < USB_SPEED_SUPER) { in finish_port_resume()
3452 status = usb_disable_remote_wakeup(udev); in finish_port_resume()
3454 status = usb_get_std_status(udev, USB_RECIP_INTERFACE, 0, in finish_port_resume()
3458 status = usb_disable_remote_wakeup(udev); in finish_port_resume()
3462 dev_dbg(&udev->dev, in finish_port_resume()
3494 static int wait_for_connected(struct usb_device *udev, in wait_for_connected() argument
3511 dev_dbg(&udev->dev, "Waited %dms for CONNECT\n", delay_ms); in wait_for_connected()
3549 int usb_port_resume(struct usb_device *udev, pm_message_t msg) in usb_port_resume() argument
3551 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_resume()
3552 struct usb_port *port_dev = hub->ports[udev->portnum - 1]; in usb_port_resume()
3553 int port1 = udev->portnum; in usb_port_resume()
3560 dev_dbg(&udev->dev, "can't resume usb port, status %d\n", in usb_port_resume()
3572 pm_wakeup_event(&udev->dev, 0); in usb_port_resume()
3586 dev_dbg(&udev->dev, "usb %sresume\n", in usb_port_resume()
3602 udev->port_is_suspended = 0; in usb_port_resume()
3614 if (udev->persist_enabled) in usb_port_resume()
3615 status = wait_for_connected(udev, hub, &port1, &portchange, in usb_port_resume()
3618 status = check_port_resume_type(udev, in usb_port_resume()
3621 status = finish_port_resume(udev); in usb_port_resume()
3623 dev_dbg(&udev->dev, "can't resume, status %d\n", status); in usb_port_resume()
3627 usb_enable_usb2_hardware_lpm(udev); in usb_port_resume()
3630 usb_enable_ltm(udev); in usb_port_resume()
3638 int usb_remote_wakeup(struct usb_device *udev) in usb_remote_wakeup() argument
3642 usb_lock_device(udev); in usb_remote_wakeup()
3643 if (udev->state == USB_STATE_SUSPENDED) { in usb_remote_wakeup()
3644 dev_dbg(&udev->dev, "usb %sresume\n", "wakeup-"); in usb_remote_wakeup()
3645 status = usb_autoresume_device(udev); in usb_remote_wakeup()
3648 usb_autosuspend_device(udev); in usb_remote_wakeup()
3651 usb_unlock_device(udev); in usb_remote_wakeup()
3662 struct usb_device *udev; in hub_handle_remote_wakeup() local
3668 udev = port_dev->child; in hub_handle_remote_wakeup()
3675 if (!udev || udev->state != USB_STATE_SUSPENDED || in hub_handle_remote_wakeup()
3682 if (udev) { in hub_handle_remote_wakeup()
3687 ret = usb_remote_wakeup(udev); in hub_handle_remote_wakeup()
3727 struct usb_device *udev = port_dev->child; in hub_suspend() local
3729 if (udev && udev->can_submit) { in hub_suspend()
3731 dev_name(&udev->dev)); in hub_suspend()
3735 if (udev) in hub_suspend()
3737 usb_wakeup_enabled_descendants(udev); in hub_suspend()
3772 struct usb_device *udev; in report_wakeup_requests() local
3794 udev = hub->ports[i]->child; in report_wakeup_requests()
3795 if (udev) in report_wakeup_requests()
3796 pm_wakeup_event(&udev->dev, 0); in report_wakeup_requests()
3862 static int usb_req_set_sel(struct usb_device *udev, enum usb3_link_state state) in usb_req_set_sel() argument
3871 if (udev->state != USB_STATE_CONFIGURED) in usb_req_set_sel()
3875 u1_sel = DIV_ROUND_UP(udev->u1_params.sel, 1000); in usb_req_set_sel()
3876 u1_pel = DIV_ROUND_UP(udev->u1_params.pel, 1000); in usb_req_set_sel()
3877 u2_sel = DIV_ROUND_UP(udev->u2_params.sel, 1000); in usb_req_set_sel()
3878 u2_pel = DIV_ROUND_UP(udev->u2_params.pel, 1000); in usb_req_set_sel()
3894 dev_dbg(&udev->dev, "Device-initiated %s disabled due to long SEL %llu us or PEL %llu us\n", in usb_req_set_sel()
3930 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_req_set_sel()
3943 static int usb_set_device_initiated_lpm(struct usb_device *udev, in usb_set_device_initiated_lpm() argument
3957 dev_warn(&udev->dev, "%s: Can't %s non-U1 or U2 state.\n", in usb_set_device_initiated_lpm()
3962 if (udev->state != USB_STATE_CONFIGURED) { in usb_set_device_initiated_lpm()
3963 dev_dbg(&udev->dev, "%s: Can't %s %s state " in usb_set_device_initiated_lpm()
3975 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_set_device_initiated_lpm()
3982 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_set_device_initiated_lpm()
3990 dev_warn(&udev->dev, "%s of device-initiated %s failed.\n", in usb_set_device_initiated_lpm()
3998 static int usb_set_lpm_timeout(struct usb_device *udev, in usb_set_lpm_timeout() argument
4012 dev_warn(&udev->dev, "%s: Can't set timeout for non-U1 or U2 state.\n", in usb_set_lpm_timeout()
4019 dev_warn(&udev->dev, "Failed to set %s timeout to 0x%x, " in usb_set_lpm_timeout()
4025 ret = set_port_feature(udev->parent, in usb_set_lpm_timeout()
4026 USB_PORT_LPM_TIMEOUT(timeout) | udev->portnum, in usb_set_lpm_timeout()
4029 dev_warn(&udev->dev, "Failed to set %s timeout to 0x%x," in usb_set_lpm_timeout()
4035 udev->u1_params.timeout = timeout; in usb_set_lpm_timeout()
4037 udev->u2_params.timeout = timeout; in usb_set_lpm_timeout()
4056 static void usb_enable_link_state(struct usb_hcd *hcd, struct usb_device *udev, in usb_enable_link_state() argument
4060 __u8 u1_mel = udev->bos->ss_cap->bU1devExitLat; in usb_enable_link_state()
4061 __le16 u2_mel = udev->bos->ss_cap->bU2DevExitLat; in usb_enable_link_state()
4075 ret = usb_req_set_sel(udev, state); in usb_enable_link_state()
4077 dev_warn(&udev->dev, "Set SEL for device-initiated %s failed.\n", in usb_enable_link_state()
4087 timeout = hcd->driver->enable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4094 dev_warn(&udev->dev, "Could not enable %s link state, " in usb_enable_link_state()
4100 if (usb_set_lpm_timeout(udev, state, timeout)) { in usb_enable_link_state()
4105 hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4112 if (udev->actconfig && in usb_enable_link_state()
4113 usb_set_device_initiated_lpm(udev, state, true) == 0) { in usb_enable_link_state()
4115 udev->usb3_lpm_u1_enabled = 1; in usb_enable_link_state()
4117 udev->usb3_lpm_u2_enabled = 1; in usb_enable_link_state()
4122 usb_set_lpm_timeout(udev, state, 0); in usb_enable_link_state()
4123 hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4142 static int usb_disable_link_state(struct usb_hcd *hcd, struct usb_device *udev, in usb_disable_link_state() argument
4150 dev_warn(&udev->dev, "%s: Can't disable non-U1 or U2 state.\n", in usb_disable_link_state()
4155 if (usb_set_lpm_timeout(udev, state, 0)) in usb_disable_link_state()
4158 usb_set_device_initiated_lpm(udev, state, false); in usb_disable_link_state()
4160 if (hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state)) in usb_disable_link_state()
4161 dev_warn(&udev->dev, "Could not disable xHCI %s timeout, " in usb_disable_link_state()
4172 udev->usb3_lpm_u1_enabled = 0; in usb_disable_link_state()
4174 udev->usb3_lpm_u2_enabled = 0; in usb_disable_link_state()
4186 int usb_disable_lpm(struct usb_device *udev) in usb_disable_lpm() argument
4190 if (!udev || !udev->parent || in usb_disable_lpm()
4191 udev->speed < USB_SPEED_SUPER || in usb_disable_lpm()
4192 !udev->lpm_capable || in usb_disable_lpm()
4193 udev->state < USB_STATE_CONFIGURED) in usb_disable_lpm()
4196 hcd = bus_to_hcd(udev->bus); in usb_disable_lpm()
4200 udev->lpm_disable_count++; in usb_disable_lpm()
4201 if ((udev->u1_params.timeout == 0 && udev->u2_params.timeout == 0)) in usb_disable_lpm()
4205 if (usb_disable_link_state(hcd, udev, USB3_LPM_U1)) in usb_disable_lpm()
4207 if (usb_disable_link_state(hcd, udev, USB3_LPM_U2)) in usb_disable_lpm()
4213 usb_enable_lpm(udev); in usb_disable_lpm()
4219 int usb_unlocked_disable_lpm(struct usb_device *udev) in usb_unlocked_disable_lpm() argument
4221 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_unlocked_disable_lpm()
4228 ret = usb_disable_lpm(udev); in usb_unlocked_disable_lpm()
4243 void usb_enable_lpm(struct usb_device *udev) in usb_enable_lpm() argument
4249 if (!udev || !udev->parent || in usb_enable_lpm()
4250 udev->speed < USB_SPEED_SUPER || in usb_enable_lpm()
4251 !udev->lpm_capable || in usb_enable_lpm()
4252 udev->state < USB_STATE_CONFIGURED) in usb_enable_lpm()
4255 udev->lpm_disable_count--; in usb_enable_lpm()
4256 hcd = bus_to_hcd(udev->bus); in usb_enable_lpm()
4264 if (udev->lpm_disable_count > 0) in usb_enable_lpm()
4267 hub = usb_hub_to_struct_hub(udev->parent); in usb_enable_lpm()
4271 port_dev = hub->ports[udev->portnum - 1]; in usb_enable_lpm()
4274 usb_enable_link_state(hcd, udev, USB3_LPM_U1); in usb_enable_lpm()
4277 usb_enable_link_state(hcd, udev, USB3_LPM_U2); in usb_enable_lpm()
4282 void usb_unlocked_enable_lpm(struct usb_device *udev) in usb_unlocked_enable_lpm() argument
4284 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_unlocked_enable_lpm()
4290 usb_enable_lpm(udev); in usb_unlocked_enable_lpm()
4299 struct usb_device *udev = port_dev->child; in hub_usb3_port_prepare_disable() local
4302 if (udev && udev->port_is_suspended && udev->do_remote_wakeup) { in hub_usb3_port_prepare_disable()
4307 ret = usb_disable_remote_wakeup(udev); in hub_usb3_port_prepare_disable()
4310 dev_warn(&udev->dev, in hub_usb3_port_prepare_disable()
4312 udev->do_remote_wakeup = 0; in hub_usb3_port_prepare_disable()
4325 int usb_disable_lpm(struct usb_device *udev) in usb_disable_lpm() argument
4331 void usb_enable_lpm(struct usb_device *udev) { } in usb_enable_lpm() argument
4334 int usb_unlocked_disable_lpm(struct usb_device *udev) in usb_unlocked_disable_lpm() argument
4340 void usb_unlocked_enable_lpm(struct usb_device *udev) { } in usb_unlocked_enable_lpm() argument
4343 int usb_disable_ltm(struct usb_device *udev) in usb_disable_ltm() argument
4349 void usb_enable_ltm(struct usb_device *udev) { } in usb_enable_ltm() argument
4395 int usb_port_disable(struct usb_device *udev) in usb_port_disable() argument
4397 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_disable()
4399 return hub_port_disable(hub, udev->portnum, 0); in usb_port_disable()
4460 void usb_ep0_reinit(struct usb_device *udev) in usb_ep0_reinit() argument
4462 usb_disable_endpoint(udev, 0 + USB_DIR_IN, true); in usb_ep0_reinit()
4463 usb_disable_endpoint(udev, 0 + USB_DIR_OUT, true); in usb_ep0_reinit()
4464 usb_enable_endpoint(udev, &udev->ep0, true); in usb_ep0_reinit()
4471 static int hub_set_address(struct usb_device *udev, int devnum) in hub_set_address() argument
4474 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_set_address()
4482 if (udev->state == USB_STATE_ADDRESS) in hub_set_address()
4484 if (udev->state != USB_STATE_DEFAULT) in hub_set_address()
4487 retval = hcd->driver->address_device(hcd, udev); in hub_set_address()
4489 retval = usb_control_msg(udev, usb_sndaddr0pipe(), in hub_set_address()
4493 update_devnum(udev, devnum); in hub_set_address()
4495 usb_set_device_state(udev, USB_STATE_ADDRESS); in hub_set_address()
4496 usb_ep0_reinit(udev); in hub_set_address()
4510 static void hub_set_initial_usb2_lpm_policy(struct usb_device *udev) in hub_set_initial_usb2_lpm_policy() argument
4512 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in hub_set_initial_usb2_lpm_policy()
4515 if (!udev->usb2_hw_lpm_capable || !udev->bos) in hub_set_initial_usb2_lpm_policy()
4519 connect_type = hub->ports[udev->portnum - 1]->connect_type; in hub_set_initial_usb2_lpm_policy()
4521 if ((udev->bos->ext_cap->bmAttributes & cpu_to_le32(USB_BESL_SUPPORT)) || in hub_set_initial_usb2_lpm_policy()
4523 udev->usb2_hw_lpm_allowed = 1; in hub_set_initial_usb2_lpm_policy()
4524 usb_enable_usb2_hardware_lpm(udev); in hub_set_initial_usb2_lpm_policy()
4528 static int hub_enable_device(struct usb_device *udev) in hub_enable_device() argument
4530 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_enable_device()
4534 if (udev->state == USB_STATE_ADDRESS) in hub_enable_device()
4536 if (udev->state != USB_STATE_DEFAULT) in hub_enable_device()
4539 return hcd->driver->enable_device(hcd, udev); in hub_enable_device()
4553 hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, in hub_port_init() argument
4561 enum usb_device_speed oldspeed = udev->speed; in hub_port_init()
4563 int devnum = udev->devnum; in hub_port_init()
4585 retval = hub_port_reset(hub, port1, udev, delay, false); in hub_port_init()
4593 if (oldspeed != USB_SPEED_UNKNOWN && oldspeed != udev->speed && in hub_port_init()
4594 !(oldspeed == USB_SPEED_SUPER && udev->speed > oldspeed)) { in hub_port_init()
4595 dev_dbg(&udev->dev, "device reset changed speed!\n"); in hub_port_init()
4598 oldspeed = udev->speed; in hub_port_init()
4605 switch (udev->speed) { in hub_port_init()
4609 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(512); in hub_port_init()
4612 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(64); in hub_port_init()
4619 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(64); in hub_port_init()
4622 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(8); in hub_port_init()
4628 if (udev->speed == USB_SPEED_WIRELESS) in hub_port_init()
4631 speed = usb_speed_string(udev->speed); in hub_port_init()
4640 if (udev->bus->controller->driver) in hub_port_init()
4641 driver_name = udev->bus->controller->driver->name; in hub_port_init()
4643 driver_name = udev->bus->sysdev->driver->name; in hub_port_init()
4645 if (udev->speed < USB_SPEED_SUPER) in hub_port_init()
4646 dev_info(&udev->dev, in hub_port_init()
4648 (udev->config) ? "reset" : "new", speed, in hub_port_init()
4653 udev->tt = hdev->tt; in hub_port_init()
4654 udev->ttport = hdev->ttport; in hub_port_init()
4655 } else if (udev->speed != USB_SPEED_HIGH in hub_port_init()
4658 dev_err(&udev->dev, "parent hub has no TT\n"); in hub_port_init()
4662 udev->tt = &hub->tt; in hub_port_init()
4663 udev->ttport = port1; in hub_port_init()
4678 do_new_scheme = use_new_scheme(udev, retry_counter, port_dev); in hub_port_init()
4685 retval = hub_enable_device(udev); in hub_port_init()
4687 dev_err(&udev->dev, in hub_port_init()
4707 r = usb_control_msg(udev, usb_rcvaddr0pipe(), in hub_port_init()
4733 udev->speed > USB_SPEED_FULL)) in hub_port_init()
4736 udev->descriptor.bMaxPacketSize0 = in hub_port_init()
4740 retval = hub_port_reset(hub, port1, udev, delay, false); in hub_port_init()
4743 if (oldspeed != udev->speed) { in hub_port_init()
4744 dev_dbg(&udev->dev, in hub_port_init()
4751 dev_err(&udev->dev, "device descriptor read/64, error %d\n", in hub_port_init()
4764 if (udev->wusb == 0) { in hub_port_init()
4766 retval = hub_set_address(udev, devnum); in hub_port_init()
4773 dev_err(&udev->dev, "device not accepting address %d, error %d\n", in hub_port_init()
4777 if (udev->speed >= USB_SPEED_SUPER) { in hub_port_init()
4778 devnum = udev->devnum; in hub_port_init()
4779 dev_info(&udev->dev, in hub_port_init()
4781 (udev->config) ? "reset" : "new", in hub_port_init()
4782 (udev->speed == USB_SPEED_SUPER_PLUS) ? in hub_port_init()
4784 (udev->rx_lanes == 2 && udev->tx_lanes == 2) ? in hub_port_init()
4798 retval = usb_get_device_descriptor(udev, 8); in hub_port_init()
4801 dev_err(&udev->dev, in hub_port_init()
4811 delay = udev->parent->hub_delay; in hub_port_init()
4812 udev->hub_delay = min_t(u32, delay, in hub_port_init()
4814 retval = usb_set_isoch_delay(udev); in hub_port_init()
4816 dev_dbg(&udev->dev, in hub_port_init()
4833 if ((udev->speed >= USB_SPEED_SUPER) && in hub_port_init()
4834 (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0300)) { in hub_port_init()
4835 dev_err(&udev->dev, "got a wrong device descriptor, " in hub_port_init()
4837 hub_port_reset(hub, port1, udev, in hub_port_init()
4843 if (udev->descriptor.bMaxPacketSize0 == 0xff || in hub_port_init()
4844 udev->speed >= USB_SPEED_SUPER) in hub_port_init()
4847 i = udev->descriptor.bMaxPacketSize0; in hub_port_init()
4848 if (usb_endpoint_maxp(&udev->ep0.desc) != i) { in hub_port_init()
4849 if (udev->speed == USB_SPEED_LOW || in hub_port_init()
4851 dev_err(&udev->dev, "Invalid ep0 maxpacket: %d\n", i); in hub_port_init()
4855 if (udev->speed == USB_SPEED_FULL) in hub_port_init()
4856 dev_dbg(&udev->dev, "ep0 maxpacket = %d\n", i); in hub_port_init()
4858 dev_warn(&udev->dev, "Using ep0 maxpacket: %d\n", i); in hub_port_init()
4859 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(i); in hub_port_init()
4860 usb_ep0_reinit(udev); in hub_port_init()
4863 retval = usb_get_device_descriptor(udev, USB_DT_DEVICE_SIZE); in hub_port_init()
4864 if (retval < (signed)sizeof(udev->descriptor)) { in hub_port_init()
4866 dev_err(&udev->dev, "device descriptor read/all, error %d\n", in hub_port_init()
4873 usb_detect_quirks(udev); in hub_port_init()
4875 if (udev->wusb == 0 && le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0201) { in hub_port_init()
4876 retval = usb_get_bos_descriptor(udev); in hub_port_init()
4878 udev->lpm_capable = usb_device_supports_lpm(udev); in hub_port_init()
4879 usb_set_lpm_parameters(udev); in hub_port_init()
4886 hcd->driver->update_device(hcd, udev); in hub_port_init()
4887 hub_set_initial_usb2_lpm_policy(udev); in hub_port_init()
4891 update_devnum(udev, devnum); /* for disconnect processing */ in hub_port_init()
4898 check_highspeed(struct usb_hub *hub, struct usb_device *udev, int port1) in check_highspeed() argument
4903 if (udev->quirks & USB_QUIRK_DEVICE_QUALIFIER) in check_highspeed()
4910 status = usb_get_descriptor(udev, USB_DT_DEVICE_QUALIFIER, 0, in check_highspeed()
4913 dev_info(&udev->dev, "not running at top speed; " in check_highspeed()
4938 struct usb_device *udev = port_dev->child; in hub_power_remaining() local
4942 if (!udev) in hub_power_remaining()
4944 if (hub_is_superspeed(udev)) in hub_power_remaining()
4953 if (udev->actconfig) in hub_power_remaining()
4954 delta = usb_get_max_power(udev, udev->actconfig); in hub_power_remaining()
4955 else if (port1 != udev->bus->otg_port || hdev->parent) in hub_power_remaining()
4973 static int descriptors_changed(struct usb_device *udev, in descriptors_changed() argument
4985 if (memcmp(&udev->descriptor, old_device_descriptor, in descriptors_changed()
4989 if ((old_bos && !udev->bos) || (!old_bos && udev->bos)) in descriptors_changed()
4991 if (udev->bos) { in descriptors_changed()
4992 len = le16_to_cpu(udev->bos->desc->wTotalLength); in descriptors_changed()
4995 if (memcmp(udev->bos->desc, old_bos->desc, len)) in descriptors_changed()
5005 if (udev->serial) in descriptors_changed()
5006 serial_len = strlen(udev->serial) + 1; in descriptors_changed()
5009 for (index = 0; index < udev->descriptor.bNumConfigurations; index++) { in descriptors_changed()
5010 old_length = le16_to_cpu(udev->config[index].desc.wTotalLength); in descriptors_changed()
5019 for (index = 0; index < udev->descriptor.bNumConfigurations; index++) { in descriptors_changed()
5020 old_length = le16_to_cpu(udev->config[index].desc.wTotalLength); in descriptors_changed()
5021 length = usb_get_descriptor(udev, USB_DT_CONFIG, index, buf, in descriptors_changed()
5024 dev_dbg(&udev->dev, "config index %d, error %d\n", in descriptors_changed()
5029 if (memcmp(buf, udev->rawdescriptors[index], old_length) in descriptors_changed()
5031 dev_dbg(&udev->dev, "config index %d changed (#%d)\n", in descriptors_changed()
5041 length = usb_string(udev, udev->descriptor.iSerialNumber, in descriptors_changed()
5044 dev_dbg(&udev->dev, "serial string error %d\n", in descriptors_changed()
5047 } else if (memcmp(buf, udev->serial, length) != 0) { in descriptors_changed()
5048 dev_dbg(&udev->dev, "serial string changed\n"); in descriptors_changed()
5066 struct usb_device *udev = port_dev->child; in hub_port_connect() local
5070 if (udev) { in hub_port_connect()
5072 usb_phy_notify_disconnect(hcd->usb_phy, udev->speed); in hub_port_connect()
5128 udev = usb_alloc_dev(hdev, hdev->bus, port1); in hub_port_connect()
5129 if (!udev) { in hub_port_connect()
5135 usb_set_device_state(udev, USB_STATE_POWERED); in hub_port_connect()
5136 udev->bus_mA = hub->mA_per_port; in hub_port_connect()
5137 udev->level = hdev->level + 1; in hub_port_connect()
5138 udev->wusb = hub_is_wusb(hub); in hub_port_connect()
5142 udev->speed = USB_SPEED_SUPER; in hub_port_connect()
5144 udev->speed = USB_SPEED_UNKNOWN; in hub_port_connect()
5146 choose_devnum(udev); in hub_port_connect()
5147 if (udev->devnum <= 0) { in hub_port_connect()
5154 status = hub_port_init(hub, udev, port1, i); in hub_port_connect()
5159 if (udev->quirks & USB_QUIRK_DELAY_INIT) in hub_port_connect()
5168 if (udev->descriptor.bDeviceClass == USB_CLASS_HUB in hub_port_connect()
5169 && udev->bus_mA <= unit_load) { in hub_port_connect()
5172 status = usb_get_std_status(udev, USB_RECIP_DEVICE, 0, in hub_port_connect()
5175 dev_dbg(&udev->dev, "get status %d ?\n", status); in hub_port_connect()
5179 dev_err(&udev->dev, in hub_port_connect()
5195 if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0200 in hub_port_connect()
5196 && udev->speed == USB_SPEED_FULL in hub_port_connect()
5198 check_highspeed(hub, udev, port1); in hub_port_connect()
5216 port_dev->child = udev; in hub_port_connect()
5222 status = usb_new_device(udev); in hub_port_connect()
5232 udev->speed); in hub_port_connect()
5248 usb_ep0_reinit(udev); in hub_port_connect()
5249 release_devnum(udev); in hub_port_connect()
5250 hub_free_dev(udev); in hub_port_connect()
5251 usb_put_dev(udev); in hub_port_connect()
5293 struct usb_device *udev = port_dev->child; in hub_port_connect_change() local
5314 if ((portstatus & USB_PORT_STAT_CONNECTION) && udev && in hub_port_connect_change()
5315 udev->state != USB_STATE_NOTATTACHED) { in hub_port_connect_change()
5323 descriptor = udev->descriptor; in hub_port_connect_change()
5324 retval = usb_get_device_descriptor(udev, in hub_port_connect_change()
5325 sizeof(udev->descriptor)); in hub_port_connect_change()
5327 dev_dbg(&udev->dev, in hub_port_connect_change()
5331 if (descriptors_changed(udev, &descriptor, in hub_port_connect_change()
5332 udev->bos)) { in hub_port_connect_change()
5333 dev_dbg(&udev->dev, in hub_port_connect_change()
5336 udev->descriptor = descriptor; in hub_port_connect_change()
5342 } else if (udev->state == USB_STATE_SUSPENDED && in hub_port_connect_change()
5343 udev->persist_enabled) { in hub_port_connect_change()
5348 status = usb_remote_wakeup(udev); in hub_port_connect_change()
5408 struct usb_device *udev = port_dev->child; in port_event() local
5436 && !connect_change && udev) { in port_event()
5492 if (!udev || !(portstatus & USB_PORT_STAT_CONNECTION) in port_event()
5493 || udev->state == USB_STATE_NOTATTACHED) { in port_event()
5499 usb_lock_device(udev); in port_event()
5500 usb_reset_device(udev); in port_event()
5501 usb_unlock_device(udev); in port_event()
5747 static int usb_reset_and_verify_device(struct usb_device *udev) in usb_reset_and_verify_device() argument
5749 struct usb_device *parent_hdev = udev->parent; in usb_reset_and_verify_device()
5751 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_reset_and_verify_device()
5752 struct usb_device_descriptor descriptor = udev->descriptor; in usb_reset_and_verify_device()
5755 int port1 = udev->portnum; in usb_reset_and_verify_device()
5757 if (udev->state == USB_STATE_NOTATTACHED || in usb_reset_and_verify_device()
5758 udev->state == USB_STATE_SUSPENDED) { in usb_reset_and_verify_device()
5759 dev_dbg(&udev->dev, "device reset not allowed in state %d\n", in usb_reset_and_verify_device()
5760 udev->state); in usb_reset_and_verify_device()
5772 usb_disable_usb2_hardware_lpm(udev); in usb_reset_and_verify_device()
5778 ret = usb_unlocked_disable_lpm(udev); in usb_reset_and_verify_device()
5780 dev_err(&udev->dev, "%s Failed to disable LPM\n", __func__); in usb_reset_and_verify_device()
5784 bos = udev->bos; in usb_reset_and_verify_device()
5785 udev->bos = NULL; in usb_reset_and_verify_device()
5791 usb_ep0_reinit(udev); in usb_reset_and_verify_device()
5792 ret = hub_port_init(parent_hub, udev, port1, i); in usb_reset_and_verify_device()
5801 if (descriptors_changed(udev, &descriptor, bos)) { in usb_reset_and_verify_device()
5802 dev_info(&udev->dev, "device firmware changed\n"); in usb_reset_and_verify_device()
5803 udev->descriptor = descriptor; /* for disconnect() calls */ in usb_reset_and_verify_device()
5808 if (!udev->actconfig) in usb_reset_and_verify_device()
5812 ret = usb_hcd_alloc_bandwidth(udev, udev->actconfig, NULL, NULL); in usb_reset_and_verify_device()
5814 dev_warn(&udev->dev, in usb_reset_and_verify_device()
5820 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_reset_and_verify_device()
5822 udev->actconfig->desc.bConfigurationValue, 0, in usb_reset_and_verify_device()
5825 dev_err(&udev->dev, in usb_reset_and_verify_device()
5827 udev->actconfig->desc.bConfigurationValue, ret); in usb_reset_and_verify_device()
5832 usb_set_device_state(udev, USB_STATE_CONFIGURED); in usb_reset_and_verify_device()
5840 for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { in usb_reset_and_verify_device()
5841 struct usb_host_config *config = udev->actconfig; in usb_reset_and_verify_device()
5847 usb_disable_interface(udev, intf, true); in usb_reset_and_verify_device()
5848 usb_enable_interface(udev, intf, true); in usb_reset_and_verify_device()
5856 ret = usb_set_interface(udev, desc->bInterfaceNumber, in usb_reset_and_verify_device()
5861 dev_err(&udev->dev, "failed to restore interface %d " in usb_reset_and_verify_device()
5875 usb_enable_usb2_hardware_lpm(udev); in usb_reset_and_verify_device()
5876 usb_unlocked_enable_lpm(udev); in usb_reset_and_verify_device()
5877 usb_enable_ltm(udev); in usb_reset_and_verify_device()
5878 usb_release_bos_descriptor(udev); in usb_reset_and_verify_device()
5879 udev->bos = bos; in usb_reset_and_verify_device()
5883 usb_release_bos_descriptor(udev); in usb_reset_and_verify_device()
5884 udev->bos = bos; in usb_reset_and_verify_device()
5912 int usb_reset_device(struct usb_device *udev) in usb_reset_device() argument
5918 struct usb_host_config *config = udev->actconfig; in usb_reset_device()
5919 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_reset_device()
5921 if (udev->state == USB_STATE_NOTATTACHED) { in usb_reset_device()
5922 dev_dbg(&udev->dev, "device reset not allowed in state %d\n", in usb_reset_device()
5923 udev->state); in usb_reset_device()
5927 if (!udev->parent) { in usb_reset_device()
5929 dev_dbg(&udev->dev, "%s for root hub!\n", __func__); in usb_reset_device()
5933 port_dev = hub->ports[udev->portnum - 1]; in usb_reset_device()
5947 usb_autoresume_device(udev); in usb_reset_device()
5969 ret = usb_reset_and_verify_device(udev); in usb_reset_device()
5992 usb_unbind_and_rebind_marked_interfaces(udev); in usb_reset_device()
5995 usb_autosuspend_device(udev); in usb_reset_device()