Lines Matching refs:udev
121 static int usb_reset_and_verify_device(struct usb_device *udev);
148 int usb_device_supports_lpm(struct usb_device *udev) in usb_device_supports_lpm() argument
151 if (udev->quirks & USB_QUIRK_NO_LPM) in usb_device_supports_lpm()
157 if (udev->speed == USB_SPEED_HIGH || udev->speed == USB_SPEED_FULL) { in usb_device_supports_lpm()
158 if (udev->bos->ext_cap && in usb_device_supports_lpm()
160 le32_to_cpu(udev->bos->ext_cap->bmAttributes))) in usb_device_supports_lpm()
170 if (!udev->bos->ss_cap) { in usb_device_supports_lpm()
171 dev_info(&udev->dev, "No LPM exit latency info found, disabling LPM.\n"); in usb_device_supports_lpm()
175 if (udev->bos->ss_cap->bU1devExitLat == 0 && in usb_device_supports_lpm()
176 udev->bos->ss_cap->bU2DevExitLat == 0) { in usb_device_supports_lpm()
177 if (udev->parent) in usb_device_supports_lpm()
178 dev_info(&udev->dev, "LPM exit latency is zeroed, disabling LPM.\n"); in usb_device_supports_lpm()
180 dev_info(&udev->dev, "We don't know the algorithms for LPM for this host, disabling LPM.\n"); in usb_device_supports_lpm()
184 if (!udev->parent || udev->parent->lpm_capable) in usb_device_supports_lpm()
194 static void usb_set_lpm_mel(struct usb_device *udev, in usb_set_lpm_mel() argument
241 static void usb_set_lpm_pel(struct usb_device *udev, in usb_set_lpm_pel() argument
295 static void usb_set_lpm_sel(struct usb_device *udev, in usb_set_lpm_sel() argument
305 for (parent = udev->parent, num_hubs = 0; parent->parent; in usb_set_lpm_sel()
318 static void usb_set_lpm_parameters(struct usb_device *udev) in usb_set_lpm_parameters() argument
327 if (!udev->lpm_capable || udev->speed < USB_SPEED_SUPER) in usb_set_lpm_parameters()
330 hub = usb_hub_to_struct_hub(udev->parent); in usb_set_lpm_parameters()
337 udev_u1_del = udev->bos->ss_cap->bU1devExitLat; in usb_set_lpm_parameters()
338 udev_u2_del = le16_to_cpu(udev->bos->ss_cap->bU2DevExitLat); in usb_set_lpm_parameters()
339 hub_u1_del = udev->parent->bos->ss_cap->bU1devExitLat; in usb_set_lpm_parameters()
340 hub_u2_del = le16_to_cpu(udev->parent->bos->ss_cap->bU2DevExitLat); in usb_set_lpm_parameters()
342 usb_set_lpm_mel(udev, &udev->u1_params, udev_u1_del, in usb_set_lpm_parameters()
343 hub, &udev->parent->u1_params, hub_u1_del); in usb_set_lpm_parameters()
345 usb_set_lpm_mel(udev, &udev->u2_params, udev_u2_del, in usb_set_lpm_parameters()
346 hub, &udev->parent->u2_params, hub_u2_del); in usb_set_lpm_parameters()
367 usb_set_lpm_pel(udev, &udev->u1_params, udev_u1_del, in usb_set_lpm_parameters()
368 hub, &udev->parent->u1_params, hub_u1_del, in usb_set_lpm_parameters()
376 usb_set_lpm_pel(udev, &udev->u2_params, udev_u2_del, in usb_set_lpm_parameters()
377 hub, &udev->parent->u2_params, hub_u2_del, in usb_set_lpm_parameters()
381 usb_set_lpm_sel(udev, &udev->u1_params); in usb_set_lpm_parameters()
382 usb_set_lpm_sel(udev, &udev->u2_params); in usb_set_lpm_parameters()
871 struct usb_device *udev = urb->dev; in usb_hub_clear_tt_buffer() local
873 struct usb_tt *tt = udev->tt; in usb_hub_clear_tt_buffer()
883 dev_err(&udev->dev, "can't save CLEAR_TT_BUFFER state\n"); in usb_hub_clear_tt_buffer()
889 clear->tt = tt->multi ? udev->ttport : 1; in usb_hub_clear_tt_buffer()
891 clear->devinfo |= ((u16)udev->devaddr) << 4; in usb_hub_clear_tt_buffer()
899 clear->hcd = bus_to_hcd(udev->bus); in usb_hub_clear_tt_buffer()
999 int usb_remove_device(struct usb_device *udev) in usb_remove_device() argument
1005 if (!udev->parent) /* Can't remove a root hub */ in usb_remove_device()
1007 hub = usb_hub_to_struct_hub(udev->parent); in usb_remove_device()
1014 set_bit(udev->portnum, hub->removed_bits); in usb_remove_device()
1015 hub_port_logical_disconnect(hub, udev->portnum); in usb_remove_device()
1129 struct usb_device *udev = port_dev->child; in hub_activate() local
1137 if (udev || (portstatus & USB_PORT_STAT_CONNECTION)) in hub_activate()
1150 !udev || in hub_activate()
1151 udev->state == USB_STATE_NOTATTACHED)) { in hub_activate()
1208 if (!udev || udev->state == USB_STATE_NOTATTACHED) { in hub_activate()
1215 if (udev || (portstatus & USB_PORT_STAT_CONNECTION) || in hub_activate()
1237 } else if (udev->persist_enabled) { in hub_activate()
1239 udev->reset_resume = 1; in hub_activate()
1249 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in hub_activate()
2011 bool usb_device_is_owned(struct usb_device *udev) in usb_device_is_owned() argument
2015 if (udev->state == USB_STATE_NOTATTACHED || !udev->parent) in usb_device_is_owned()
2017 hub = usb_hub_to_struct_hub(udev->parent); in usb_device_is_owned()
2018 return !!hub->ports[udev->portnum - 1]->port_owner; in usb_device_is_owned()
2021 static void recursively_mark_NOTATTACHED(struct usb_device *udev) in recursively_mark_NOTATTACHED() argument
2023 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in recursively_mark_NOTATTACHED()
2026 for (i = 0; i < udev->maxchild; ++i) { in recursively_mark_NOTATTACHED()
2030 if (udev->state == USB_STATE_SUSPENDED) in recursively_mark_NOTATTACHED()
2031 udev->active_duration -= jiffies; in recursively_mark_NOTATTACHED()
2032 udev->state = USB_STATE_NOTATTACHED; in recursively_mark_NOTATTACHED()
2056 void usb_set_device_state(struct usb_device *udev, in usb_set_device_state() argument
2063 if (udev->state == USB_STATE_NOTATTACHED) in usb_set_device_state()
2070 if (udev->parent) { in usb_set_device_state()
2071 if (udev->state == USB_STATE_SUSPENDED in usb_set_device_state()
2075 wakeup = (udev->quirks & in usb_set_device_state()
2077 udev->actconfig->desc.bmAttributes & in usb_set_device_state()
2082 if (udev->state == USB_STATE_SUSPENDED && in usb_set_device_state()
2084 udev->active_duration -= jiffies; in usb_set_device_state()
2086 udev->state != USB_STATE_SUSPENDED) in usb_set_device_state()
2087 udev->active_duration += jiffies; in usb_set_device_state()
2088 udev->state = new_state; in usb_set_device_state()
2090 recursively_mark_NOTATTACHED(udev); in usb_set_device_state()
2093 device_set_wakeup_capable(&udev->dev, wakeup); in usb_set_device_state()
2126 static void choose_devnum(struct usb_device *udev) in choose_devnum() argument
2129 struct usb_bus *bus = udev->bus; in choose_devnum()
2133 if (udev->wusb) { in choose_devnum()
2134 devnum = udev->portnum + 1; in choose_devnum()
2148 udev->devnum = devnum; in choose_devnum()
2153 static void release_devnum(struct usb_device *udev) in release_devnum() argument
2155 if (udev->devnum > 0) { in release_devnum()
2156 clear_bit(udev->devnum, udev->bus->devmap.devicemap); in release_devnum()
2157 udev->devnum = -1; in release_devnum()
2161 static void update_devnum(struct usb_device *udev, int devnum) in update_devnum() argument
2164 if (!udev->wusb) in update_devnum()
2165 udev->devnum = devnum; in update_devnum()
2166 if (!udev->devaddr) in update_devnum()
2167 udev->devaddr = (u8)devnum; in update_devnum()
2170 static void hub_free_dev(struct usb_device *udev) in hub_free_dev() argument
2172 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_free_dev()
2175 if (hcd->driver->free_dev && udev->parent) in hub_free_dev()
2176 hcd->driver->free_dev(hcd, udev); in hub_free_dev()
2179 static void hub_disconnect_children(struct usb_device *udev) in hub_disconnect_children() argument
2181 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in hub_disconnect_children()
2185 for (i = 0; i < udev->maxchild; i++) { in hub_disconnect_children()
2211 struct usb_device *udev = *pdev; in usb_disconnect() local
2219 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in usb_disconnect()
2220 dev_info(&udev->dev, "USB disconnect, device number %d\n", in usb_disconnect()
2221 udev->devnum); in usb_disconnect()
2227 pm_runtime_barrier(&udev->dev); in usb_disconnect()
2229 usb_lock_device(udev); in usb_disconnect()
2231 hub_disconnect_children(udev); in usb_disconnect()
2237 dev_dbg(&udev->dev, "unregistering device\n"); in usb_disconnect()
2238 usb_disable_device(udev, 0); in usb_disconnect()
2239 usb_hcd_synchronize_unlinks(udev); in usb_disconnect()
2241 if (udev->parent) { in usb_disconnect()
2242 port1 = udev->portnum; in usb_disconnect()
2243 hub = usb_hub_to_struct_hub(udev->parent); in usb_disconnect()
2246 sysfs_remove_link(&udev->dev.kobj, "port"); in usb_disconnect()
2257 usb_remove_ep_devs(&udev->ep0); in usb_disconnect()
2258 usb_unlock_device(udev); in usb_disconnect()
2264 device_del(&udev->dev); in usb_disconnect()
2269 release_devnum(udev); in usb_disconnect()
2279 hub_free_dev(udev); in usb_disconnect()
2281 put_device(&udev->dev); in usb_disconnect()
2285 static void show_string(struct usb_device *udev, char *id, char *string) in show_string() argument
2289 dev_info(&udev->dev, "%s: %s\n", id, string); in show_string()
2292 static void announce_device(struct usb_device *udev) in announce_device() argument
2294 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); in announce_device()
2296 dev_info(&udev->dev, in announce_device()
2298 le16_to_cpu(udev->descriptor.idVendor), in announce_device()
2299 le16_to_cpu(udev->descriptor.idProduct), in announce_device()
2301 dev_info(&udev->dev, in announce_device()
2303 udev->descriptor.iManufacturer, in announce_device()
2304 udev->descriptor.iProduct, in announce_device()
2305 udev->descriptor.iSerialNumber); in announce_device()
2306 show_string(udev, "Product", udev->product); in announce_device()
2307 show_string(udev, "Manufacturer", udev->manufacturer); in announce_device()
2308 show_string(udev, "SerialNumber", udev->serial); in announce_device()
2311 static inline void announce_device(struct usb_device *udev) { } in announce_device() argument
2323 static int usb_enumerate_device_otg(struct usb_device *udev) in usb_enumerate_device_otg() argument
2333 if (!udev->bus->is_b_host in usb_enumerate_device_otg()
2334 && udev->config in usb_enumerate_device_otg()
2335 && udev->parent == udev->bus->root_hub) { in usb_enumerate_device_otg()
2337 struct usb_bus *bus = udev->bus; in usb_enumerate_device_otg()
2338 unsigned port1 = udev->portnum; in usb_enumerate_device_otg()
2341 err = __usb_get_extra_descriptor(udev->rawdescriptors[0], in usb_enumerate_device_otg()
2342 le16_to_cpu(udev->config[0].desc.wTotalLength), in usb_enumerate_device_otg()
2347 dev_info(&udev->dev, "Dual-Role OTG device on %sHNP port\n", in usb_enumerate_device_otg()
2353 err = usb_control_msg(udev, in usb_enumerate_device_otg()
2354 usb_sndctrlpipe(udev, 0), in usb_enumerate_device_otg()
2364 dev_err(&udev->dev, "can't set HNP mode: %d\n", in usb_enumerate_device_otg()
2371 err = usb_control_msg(udev, in usb_enumerate_device_otg()
2372 usb_sndctrlpipe(udev, 0), in usb_enumerate_device_otg()
2378 dev_err(&udev->dev, in usb_enumerate_device_otg()
2401 static int usb_enumerate_device(struct usb_device *udev) in usb_enumerate_device() argument
2404 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_enumerate_device()
2406 if (udev->config == NULL) { in usb_enumerate_device()
2407 err = usb_get_configuration(udev); in usb_enumerate_device()
2410 dev_err(&udev->dev, "can't read configurations, error %d\n", in usb_enumerate_device()
2417 udev->product = usb_cache_string(udev, udev->descriptor.iProduct); in usb_enumerate_device()
2418 udev->manufacturer = usb_cache_string(udev, in usb_enumerate_device()
2419 udev->descriptor.iManufacturer); in usb_enumerate_device()
2420 udev->serial = usb_cache_string(udev, udev->descriptor.iSerialNumber); in usb_enumerate_device()
2422 err = usb_enumerate_device_otg(udev); in usb_enumerate_device()
2427 !is_targeted(udev)) { in usb_enumerate_device()
2431 if (IS_ENABLED(CONFIG_USB_OTG) && (udev->bus->b_hnp_enable in usb_enumerate_device()
2432 || udev->bus->is_b_host)) { in usb_enumerate_device()
2433 err = usb_port_suspend(udev, PMSG_AUTO_SUSPEND); in usb_enumerate_device()
2435 dev_dbg(&udev->dev, "HNP fail, %d\n", err); in usb_enumerate_device()
2440 usb_detect_interface_quirks(udev); in usb_enumerate_device()
2445 static void set_usb_port_removable(struct usb_device *udev) in set_usb_port_removable() argument
2447 struct usb_device *hdev = udev->parent; in set_usb_port_removable()
2449 u8 port = udev->portnum; in set_usb_port_removable()
2453 dev_set_removable(&udev->dev, DEVICE_REMOVABLE_UNKNOWN); in set_usb_port_removable()
2458 hub = usb_hub_to_struct_hub(udev->parent); in set_usb_port_removable()
2464 switch (hub->ports[udev->portnum - 1]->connect_type) { in set_usb_port_removable()
2466 dev_set_removable(&udev->dev, DEVICE_REMOVABLE); in set_usb_port_removable()
2470 dev_set_removable(&udev->dev, DEVICE_FIXED); in set_usb_port_removable()
2495 dev_set_removable(&udev->dev, DEVICE_REMOVABLE); in set_usb_port_removable()
2497 dev_set_removable(&udev->dev, DEVICE_FIXED); in set_usb_port_removable()
2522 int usb_new_device(struct usb_device *udev) in usb_new_device() argument
2526 if (udev->parent) { in usb_new_device()
2531 device_init_wakeup(&udev->dev, 0); in usb_new_device()
2535 pm_runtime_set_active(&udev->dev); in usb_new_device()
2536 pm_runtime_get_noresume(&udev->dev); in usb_new_device()
2537 pm_runtime_use_autosuspend(&udev->dev); in usb_new_device()
2538 pm_runtime_enable(&udev->dev); in usb_new_device()
2543 usb_disable_autosuspend(udev); in usb_new_device()
2545 err = usb_enumerate_device(udev); /* Read descriptors */ in usb_new_device()
2548 dev_dbg(&udev->dev, "udev %d, busnum %d, minor = %d\n", in usb_new_device()
2549 udev->devnum, udev->bus->busnum, in usb_new_device()
2550 (((udev->bus->busnum-1) * 128) + (udev->devnum-1))); in usb_new_device()
2552 udev->dev.devt = MKDEV(USB_DEVICE_MAJOR, in usb_new_device()
2553 (((udev->bus->busnum-1) * 128) + (udev->devnum-1))); in usb_new_device()
2556 announce_device(udev); in usb_new_device()
2558 if (udev->serial) in usb_new_device()
2559 add_device_randomness(udev->serial, strlen(udev->serial)); in usb_new_device()
2560 if (udev->product) in usb_new_device()
2561 add_device_randomness(udev->product, strlen(udev->product)); in usb_new_device()
2562 if (udev->manufacturer) in usb_new_device()
2563 add_device_randomness(udev->manufacturer, in usb_new_device()
2564 strlen(udev->manufacturer)); in usb_new_device()
2566 device_enable_async_suspend(&udev->dev); in usb_new_device()
2569 set_usb_port_removable(udev); in usb_new_device()
2575 err = device_add(&udev->dev); in usb_new_device()
2577 dev_err(&udev->dev, "can't device_add, error %d\n", err); in usb_new_device()
2582 if (udev->parent) { in usb_new_device()
2583 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_new_device()
2584 int port1 = udev->portnum; in usb_new_device()
2587 err = sysfs_create_link(&udev->dev.kobj, in usb_new_device()
2593 &udev->dev.kobj, "device"); in usb_new_device()
2595 sysfs_remove_link(&udev->dev.kobj, "port"); in usb_new_device()
2603 (void) usb_create_ep_devs(&udev->dev, &udev->ep0, udev); in usb_new_device()
2604 usb_mark_last_busy(udev); in usb_new_device()
2605 pm_runtime_put_sync_autosuspend(&udev->dev); in usb_new_device()
2609 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in usb_new_device()
2610 pm_runtime_disable(&udev->dev); in usb_new_device()
2611 pm_runtime_set_suspended(&udev->dev); in usb_new_device()
2800 static bool use_new_scheme(struct usb_device *udev, int retry, in use_new_scheme() argument
2814 if (udev->speed >= USB_SPEED_SUPER) in use_new_scheme()
2847 struct usb_device *udev, unsigned int delay, bool warm) in hub_port_wait_reset() argument
2916 if (!udev) in hub_port_wait_reset()
2921 udev->rx_lanes = USB_EXT_PORT_RX_LANES(ext_portstatus) + 1; in hub_port_wait_reset()
2922 udev->tx_lanes = USB_EXT_PORT_TX_LANES(ext_portstatus) + 1; in hub_port_wait_reset()
2923 udev->ssp_rate = get_port_ssp_rate(hub->hdev, ext_portstatus); in hub_port_wait_reset()
2925 udev->rx_lanes = 1; in hub_port_wait_reset()
2926 udev->tx_lanes = 1; in hub_port_wait_reset()
2927 udev->ssp_rate = USB_SSP_GEN_UNKNOWN; in hub_port_wait_reset()
2930 udev->speed = USB_SPEED_WIRELESS; in hub_port_wait_reset()
2931 else if (udev->ssp_rate != USB_SSP_GEN_UNKNOWN) in hub_port_wait_reset()
2932 udev->speed = USB_SPEED_SUPER_PLUS; in hub_port_wait_reset()
2934 udev->speed = USB_SPEED_SUPER; in hub_port_wait_reset()
2936 udev->speed = USB_SPEED_HIGH; in hub_port_wait_reset()
2938 udev->speed = USB_SPEED_LOW; in hub_port_wait_reset()
2940 udev->speed = USB_SPEED_FULL; in hub_port_wait_reset()
2946 struct usb_device *udev, unsigned int delay, bool warm) in hub_port_reset() argument
2988 status = hub_port_wait_reset(hub, port1, udev, delay, in hub_port_reset()
3013 if (udev) in hub_port_reset()
3063 if (udev) { in hub_port_reset()
3064 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_port_reset()
3066 update_devnum(udev, 0); in hub_port_reset()
3071 hcd->driver->reset_device(hcd, udev); in hub_port_reset()
3073 usb_set_device_state(udev, USB_STATE_DEFAULT); in hub_port_reset()
3076 if (udev) in hub_port_reset()
3077 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in hub_port_reset()
3180 static int check_port_resume_type(struct usb_device *udev, in check_port_resume_type() argument
3189 if (status == 0 && udev->reset_resume in check_port_resume_type()
3211 else if (!(portstatus & USB_PORT_STAT_ENABLE) && !udev->reset_resume) { in check_port_resume_type()
3212 if (udev->persist_enabled) in check_port_resume_type()
3213 udev->reset_resume = 1; in check_port_resume_type()
3221 } else if (udev->reset_resume) { in check_port_resume_type()
3244 int usb_disable_ltm(struct usb_device *udev) in usb_disable_ltm() argument
3246 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_disable_ltm()
3250 !usb_device_supports_ltm(udev)) in usb_disable_ltm()
3256 if (!udev->actconfig) in usb_disable_ltm()
3259 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_ltm()
3266 void usb_enable_ltm(struct usb_device *udev) in usb_enable_ltm() argument
3268 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_enable_ltm()
3272 !usb_device_supports_ltm(udev)) in usb_enable_ltm()
3278 if (!udev->actconfig) in usb_enable_ltm()
3281 usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_ltm()
3298 static int usb_enable_remote_wakeup(struct usb_device *udev) in usb_enable_remote_wakeup() argument
3300 if (udev->speed < USB_SPEED_SUPER) in usb_enable_remote_wakeup()
3301 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_remote_wakeup()
3306 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_remote_wakeup()
3324 static int usb_disable_remote_wakeup(struct usb_device *udev) in usb_disable_remote_wakeup() argument
3326 if (udev->speed < USB_SPEED_SUPER) in usb_disable_remote_wakeup()
3327 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_remote_wakeup()
3332 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_remote_wakeup()
3339 unsigned usb_wakeup_enabled_descendants(struct usb_device *udev) in usb_wakeup_enabled_descendants() argument
3341 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in usb_wakeup_enabled_descendants()
3343 return udev->do_remote_wakeup + in usb_wakeup_enabled_descendants()
3396 int usb_port_suspend(struct usb_device *udev, pm_message_t msg) in usb_port_suspend() argument
3398 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_suspend()
3399 struct usb_port *port_dev = hub->ports[udev->portnum - 1]; in usb_port_suspend()
3400 int port1 = udev->portnum; in usb_port_suspend()
3412 if (udev->do_remote_wakeup) { in usb_port_suspend()
3413 status = usb_enable_remote_wakeup(udev); in usb_port_suspend()
3415 dev_dbg(&udev->dev, "won't remote wakeup, status %d\n", in usb_port_suspend()
3424 usb_disable_usb2_hardware_lpm(udev); in usb_port_suspend()
3426 if (usb_disable_ltm(udev)) { in usb_port_suspend()
3427 dev_err(&udev->dev, "Failed to disable LTM before suspend\n"); in usb_port_suspend()
3448 else if (PMSG_IS_AUTO(msg) || usb_wakeup_enabled_descendants(udev) > 0) in usb_port_suspend()
3479 usb_enable_ltm(udev); in usb_port_suspend()
3482 usb_enable_usb2_hardware_lpm(udev); in usb_port_suspend()
3484 if (udev->do_remote_wakeup) in usb_port_suspend()
3485 (void) usb_disable_remote_wakeup(udev); in usb_port_suspend()
3493 dev_dbg(&udev->dev, "usb %ssuspend, wakeup %d\n", in usb_port_suspend()
3495 udev->do_remote_wakeup); in usb_port_suspend()
3497 udev->port_is_suspended = 1; in usb_port_suspend()
3502 usb_set_device_state(udev, USB_STATE_SUSPENDED); in usb_port_suspend()
3505 if (status == 0 && !udev->do_remote_wakeup && udev->persist_enabled in usb_port_suspend()
3526 static int finish_port_resume(struct usb_device *udev) in finish_port_resume() argument
3532 dev_dbg(&udev->dev, "%s\n", in finish_port_resume()
3533 udev->reset_resume ? "finish reset-resume" : "finish resume"); in finish_port_resume()
3540 usb_set_device_state(udev, udev->actconfig in finish_port_resume()
3549 if (udev->reset_resume) { in finish_port_resume()
3557 if (udev->quirks & USB_QUIRK_RESET) in finish_port_resume()
3560 status = usb_reset_and_verify_device(udev); in finish_port_resume()
3569 status = usb_get_std_status(udev, USB_RECIP_DEVICE, 0, &devstatus); in finish_port_resume()
3572 if (status && !udev->reset_resume && udev->persist_enabled) { in finish_port_resume()
3573 dev_dbg(&udev->dev, "retry with reset-resume\n"); in finish_port_resume()
3574 udev->reset_resume = 1; in finish_port_resume()
3580 dev_dbg(&udev->dev, "gone after usb resume? status %d\n", in finish_port_resume()
3588 } else if (udev->actconfig && !udev->reset_resume) { in finish_port_resume()
3589 if (udev->speed < USB_SPEED_SUPER) { in finish_port_resume()
3591 status = usb_disable_remote_wakeup(udev); in finish_port_resume()
3593 status = usb_get_std_status(udev, USB_RECIP_INTERFACE, 0, in finish_port_resume()
3597 status = usb_disable_remote_wakeup(udev); in finish_port_resume()
3601 dev_dbg(&udev->dev, in finish_port_resume()
3633 static int wait_for_connected(struct usb_device *udev, in wait_for_connected() argument
3650 dev_dbg(&udev->dev, "Waited %dms for CONNECT\n", delay_ms); in wait_for_connected()
3688 int usb_port_resume(struct usb_device *udev, pm_message_t msg) in usb_port_resume() argument
3690 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_resume()
3691 struct usb_port *port_dev = hub->ports[udev->portnum - 1]; in usb_port_resume()
3692 int port1 = udev->portnum; in usb_port_resume()
3699 dev_dbg(&udev->dev, "can't resume usb port, status %d\n", in usb_port_resume()
3711 pm_wakeup_event(&udev->dev, 0); in usb_port_resume()
3725 dev_dbg(&udev->dev, "usb %sresume\n", in usb_port_resume()
3738 udev->port_is_suspended = 0; in usb_port_resume()
3753 if (udev->persist_enabled) in usb_port_resume()
3754 status = wait_for_connected(udev, hub, port1, &portchange, in usb_port_resume()
3757 status = check_port_resume_type(udev, in usb_port_resume()
3760 status = finish_port_resume(udev); in usb_port_resume()
3762 dev_dbg(&udev->dev, "can't resume, status %d\n", status); in usb_port_resume()
3766 usb_enable_usb2_hardware_lpm(udev); in usb_port_resume()
3769 usb_enable_ltm(udev); in usb_port_resume()
3777 int usb_remote_wakeup(struct usb_device *udev) in usb_remote_wakeup() argument
3781 usb_lock_device(udev); in usb_remote_wakeup()
3782 if (udev->state == USB_STATE_SUSPENDED) { in usb_remote_wakeup()
3783 dev_dbg(&udev->dev, "usb %sresume\n", "wakeup-"); in usb_remote_wakeup()
3784 status = usb_autoresume_device(udev); in usb_remote_wakeup()
3787 usb_autosuspend_device(udev); in usb_remote_wakeup()
3790 usb_unlock_device(udev); in usb_remote_wakeup()
3801 struct usb_device *udev; in hub_handle_remote_wakeup() local
3807 udev = port_dev->child; in hub_handle_remote_wakeup()
3814 if (!udev || udev->state != USB_STATE_SUSPENDED || in hub_handle_remote_wakeup()
3821 if (udev) { in hub_handle_remote_wakeup()
3826 ret = usb_remote_wakeup(udev); in hub_handle_remote_wakeup()
3866 struct usb_device *udev = port_dev->child; in hub_suspend() local
3868 if (udev && udev->can_submit) { in hub_suspend()
3870 dev_name(&udev->dev)); in hub_suspend()
3874 if (udev) in hub_suspend()
3876 usb_wakeup_enabled_descendants(udev); in hub_suspend()
3911 struct usb_device *udev; in report_wakeup_requests() local
3933 udev = hub->ports[i]->child; in report_wakeup_requests()
3934 if (udev) in report_wakeup_requests()
3935 pm_wakeup_event(&udev->dev, 0); in report_wakeup_requests()
4001 static int usb_req_set_sel(struct usb_device *udev) in usb_req_set_sel() argument
4010 if (!udev->parent || udev->speed < USB_SPEED_SUPER || !udev->lpm_capable) in usb_req_set_sel()
4014 u1_sel = DIV_ROUND_UP(udev->u1_params.sel, 1000); in usb_req_set_sel()
4015 u1_pel = DIV_ROUND_UP(udev->u1_params.pel, 1000); in usb_req_set_sel()
4016 u2_sel = DIV_ROUND_UP(udev->u2_params.sel, 1000); in usb_req_set_sel()
4017 u2_pel = DIV_ROUND_UP(udev->u2_params.pel, 1000); in usb_req_set_sel()
4031 dev_dbg(&udev->dev, "Device-initiated U1/U2 disabled due to long SEL or PEL\n"); in usb_req_set_sel()
4049 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_req_set_sel()
4058 udev->lpm_devinit_allow = 1; in usb_req_set_sel()
4066 static int usb_set_device_initiated_lpm(struct usb_device *udev, in usb_set_device_initiated_lpm() argument
4080 dev_warn(&udev->dev, "%s: Can't %s non-U1 or U2 state.\n", in usb_set_device_initiated_lpm()
4085 if (udev->state != USB_STATE_CONFIGURED) { in usb_set_device_initiated_lpm()
4086 dev_dbg(&udev->dev, "%s: Can't %s %s state " in usb_set_device_initiated_lpm()
4098 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_set_device_initiated_lpm()
4105 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_set_device_initiated_lpm()
4113 dev_warn(&udev->dev, "%s of device-initiated %s failed.\n", in usb_set_device_initiated_lpm()
4121 static int usb_set_lpm_timeout(struct usb_device *udev, in usb_set_lpm_timeout() argument
4135 dev_warn(&udev->dev, "%s: Can't set timeout for non-U1 or U2 state.\n", in usb_set_lpm_timeout()
4142 dev_warn(&udev->dev, "Failed to set %s timeout to 0x%x, " in usb_set_lpm_timeout()
4148 ret = set_port_feature(udev->parent, in usb_set_lpm_timeout()
4149 USB_PORT_LPM_TIMEOUT(timeout) | udev->portnum, in usb_set_lpm_timeout()
4152 dev_warn(&udev->dev, "Failed to set %s timeout to 0x%x," in usb_set_lpm_timeout()
4158 udev->u1_params.timeout = timeout; in usb_set_lpm_timeout()
4160 udev->u2_params.timeout = timeout; in usb_set_lpm_timeout()
4169 static bool usb_device_may_initiate_lpm(struct usb_device *udev, in usb_device_may_initiate_lpm() argument
4175 if (!udev->lpm_devinit_allow) in usb_device_may_initiate_lpm()
4179 sel = DIV_ROUND_UP(udev->u1_params.sel, 1000); in usb_device_may_initiate_lpm()
4181 sel = DIV_ROUND_UP(udev->u2_params.sel, 1000); in usb_device_may_initiate_lpm()
4185 for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { in usb_device_may_initiate_lpm()
4190 intf = udev->actconfig->interface[i]; in usb_device_may_initiate_lpm()
4223 static void usb_enable_link_state(struct usb_hcd *hcd, struct usb_device *udev, in usb_enable_link_state() argument
4227 __u8 u1_mel = udev->bos->ss_cap->bU1devExitLat; in usb_enable_link_state()
4228 __le16 u2_mel = udev->bos->ss_cap->bU2DevExitLat; in usb_enable_link_state()
4243 timeout = hcd->driver->enable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4250 dev_warn(&udev->dev, "Could not enable %s link state, " in usb_enable_link_state()
4256 if (usb_set_lpm_timeout(udev, state, timeout)) { in usb_enable_link_state()
4261 hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4268 if (udev->actconfig && in usb_enable_link_state()
4269 usb_device_may_initiate_lpm(udev, state)) { in usb_enable_link_state()
4270 if (usb_set_device_initiated_lpm(udev, state, true)) { in usb_enable_link_state()
4275 usb_set_lpm_timeout(udev, state, 0); in usb_enable_link_state()
4276 hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4282 udev->usb3_lpm_u1_enabled = 1; in usb_enable_link_state()
4284 udev->usb3_lpm_u2_enabled = 1; in usb_enable_link_state()
4301 static int usb_disable_link_state(struct usb_hcd *hcd, struct usb_device *udev, in usb_disable_link_state() argument
4309 dev_warn(&udev->dev, "%s: Can't disable non-U1 or U2 state.\n", in usb_disable_link_state()
4314 if (usb_set_lpm_timeout(udev, state, 0)) in usb_disable_link_state()
4317 usb_set_device_initiated_lpm(udev, state, false); in usb_disable_link_state()
4319 if (hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state)) in usb_disable_link_state()
4320 dev_warn(&udev->dev, "Could not disable xHCI %s timeout, " in usb_disable_link_state()
4331 udev->usb3_lpm_u1_enabled = 0; in usb_disable_link_state()
4333 udev->usb3_lpm_u2_enabled = 0; in usb_disable_link_state()
4345 int usb_disable_lpm(struct usb_device *udev) in usb_disable_lpm() argument
4349 if (!udev || !udev->parent || in usb_disable_lpm()
4350 udev->speed < USB_SPEED_SUPER || in usb_disable_lpm()
4351 !udev->lpm_capable || in usb_disable_lpm()
4352 udev->state < USB_STATE_CONFIGURED) in usb_disable_lpm()
4355 hcd = bus_to_hcd(udev->bus); in usb_disable_lpm()
4359 udev->lpm_disable_count++; in usb_disable_lpm()
4360 if ((udev->u1_params.timeout == 0 && udev->u2_params.timeout == 0)) in usb_disable_lpm()
4364 if (usb_disable_link_state(hcd, udev, USB3_LPM_U1)) in usb_disable_lpm()
4366 if (usb_disable_link_state(hcd, udev, USB3_LPM_U2)) in usb_disable_lpm()
4372 usb_enable_lpm(udev); in usb_disable_lpm()
4378 int usb_unlocked_disable_lpm(struct usb_device *udev) in usb_unlocked_disable_lpm() argument
4380 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_unlocked_disable_lpm()
4387 ret = usb_disable_lpm(udev); in usb_unlocked_disable_lpm()
4402 void usb_enable_lpm(struct usb_device *udev) in usb_enable_lpm() argument
4408 if (!udev || !udev->parent || in usb_enable_lpm()
4409 udev->speed < USB_SPEED_SUPER || in usb_enable_lpm()
4410 !udev->lpm_capable || in usb_enable_lpm()
4411 udev->state < USB_STATE_CONFIGURED) in usb_enable_lpm()
4414 udev->lpm_disable_count--; in usb_enable_lpm()
4415 hcd = bus_to_hcd(udev->bus); in usb_enable_lpm()
4423 if (udev->lpm_disable_count > 0) in usb_enable_lpm()
4426 hub = usb_hub_to_struct_hub(udev->parent); in usb_enable_lpm()
4430 port_dev = hub->ports[udev->portnum - 1]; in usb_enable_lpm()
4433 usb_enable_link_state(hcd, udev, USB3_LPM_U1); in usb_enable_lpm()
4436 usb_enable_link_state(hcd, udev, USB3_LPM_U2); in usb_enable_lpm()
4441 void usb_unlocked_enable_lpm(struct usb_device *udev) in usb_unlocked_enable_lpm() argument
4443 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_unlocked_enable_lpm()
4449 usb_enable_lpm(udev); in usb_unlocked_enable_lpm()
4458 struct usb_device *udev = port_dev->child; in hub_usb3_port_prepare_disable() local
4461 if (udev && udev->port_is_suspended && udev->do_remote_wakeup) { in hub_usb3_port_prepare_disable()
4466 ret = usb_disable_remote_wakeup(udev); in hub_usb3_port_prepare_disable()
4469 dev_warn(&udev->dev, in hub_usb3_port_prepare_disable()
4471 udev->do_remote_wakeup = 0; in hub_usb3_port_prepare_disable()
4484 int usb_disable_lpm(struct usb_device *udev) in usb_disable_lpm() argument
4490 void usb_enable_lpm(struct usb_device *udev) { } in usb_enable_lpm() argument
4493 int usb_unlocked_disable_lpm(struct usb_device *udev) in usb_unlocked_disable_lpm() argument
4499 void usb_unlocked_enable_lpm(struct usb_device *udev) { } in usb_unlocked_enable_lpm() argument
4502 int usb_disable_ltm(struct usb_device *udev) in usb_disable_ltm() argument
4508 void usb_enable_ltm(struct usb_device *udev) { } in usb_enable_ltm() argument
4517 static int usb_req_set_sel(struct usb_device *udev) in usb_req_set_sel() argument
4559 int usb_port_disable(struct usb_device *udev) in usb_port_disable() argument
4561 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_disable()
4563 return hub_port_disable(hub, udev->portnum, 0); in usb_port_disable()
4624 void usb_ep0_reinit(struct usb_device *udev) in usb_ep0_reinit() argument
4626 usb_disable_endpoint(udev, 0 + USB_DIR_IN, true); in usb_ep0_reinit()
4627 usb_disable_endpoint(udev, 0 + USB_DIR_OUT, true); in usb_ep0_reinit()
4628 usb_enable_endpoint(udev, &udev->ep0, true); in usb_ep0_reinit()
4635 static int hub_set_address(struct usb_device *udev, int devnum) in hub_set_address() argument
4638 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_set_address()
4646 if (udev->state == USB_STATE_ADDRESS) in hub_set_address()
4648 if (udev->state != USB_STATE_DEFAULT) in hub_set_address()
4651 retval = hcd->driver->address_device(hcd, udev); in hub_set_address()
4653 retval = usb_control_msg(udev, usb_sndaddr0pipe(), in hub_set_address()
4657 update_devnum(udev, devnum); in hub_set_address()
4659 usb_set_device_state(udev, USB_STATE_ADDRESS); in hub_set_address()
4660 usb_ep0_reinit(udev); in hub_set_address()
4674 static void hub_set_initial_usb2_lpm_policy(struct usb_device *udev) in hub_set_initial_usb2_lpm_policy() argument
4676 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in hub_set_initial_usb2_lpm_policy()
4679 if (!udev->usb2_hw_lpm_capable || !udev->bos) in hub_set_initial_usb2_lpm_policy()
4683 connect_type = hub->ports[udev->portnum - 1]->connect_type; in hub_set_initial_usb2_lpm_policy()
4685 if ((udev->bos->ext_cap->bmAttributes & cpu_to_le32(USB_BESL_SUPPORT)) || in hub_set_initial_usb2_lpm_policy()
4687 udev->usb2_hw_lpm_allowed = 1; in hub_set_initial_usb2_lpm_policy()
4688 usb_enable_usb2_hardware_lpm(udev); in hub_set_initial_usb2_lpm_policy()
4692 static int hub_enable_device(struct usb_device *udev) in hub_enable_device() argument
4694 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_enable_device()
4698 if (udev->state == USB_STATE_ADDRESS) in hub_enable_device()
4700 if (udev->state != USB_STATE_DEFAULT) in hub_enable_device()
4703 return hcd->driver->enable_device(hcd, udev); in hub_enable_device()
4717 hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, in hub_port_init() argument
4725 enum usb_device_speed oldspeed = udev->speed; in hub_port_init()
4727 int devnum = udev->devnum; in hub_port_init()
4747 retval = hub_port_reset(hub, port1, udev, delay, false); in hub_port_init()
4755 if (oldspeed != USB_SPEED_UNKNOWN && oldspeed != udev->speed && in hub_port_init()
4756 !(oldspeed == USB_SPEED_SUPER && udev->speed > oldspeed)) { in hub_port_init()
4757 dev_dbg(&udev->dev, "device reset changed speed!\n"); in hub_port_init()
4760 oldspeed = udev->speed; in hub_port_init()
4767 switch (udev->speed) { in hub_port_init()
4771 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(512); in hub_port_init()
4774 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(64); in hub_port_init()
4781 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(64); in hub_port_init()
4784 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(8); in hub_port_init()
4790 if (udev->speed == USB_SPEED_WIRELESS) in hub_port_init()
4793 speed = usb_speed_string(udev->speed); in hub_port_init()
4802 if (udev->bus->controller->driver) in hub_port_init()
4803 driver_name = udev->bus->controller->driver->name; in hub_port_init()
4805 driver_name = udev->bus->sysdev->driver->name; in hub_port_init()
4807 if (udev->speed < USB_SPEED_SUPER) in hub_port_init()
4808 dev_info(&udev->dev, in hub_port_init()
4810 (udev->config) ? "reset" : "new", speed, in hub_port_init()
4815 udev->tt = hdev->tt; in hub_port_init()
4816 udev->ttport = hdev->ttport; in hub_port_init()
4817 } else if (udev->speed != USB_SPEED_HIGH in hub_port_init()
4820 dev_err(&udev->dev, "parent hub has no TT\n"); in hub_port_init()
4824 udev->tt = &hub->tt; in hub_port_init()
4825 udev->ttport = port1; in hub_port_init()
4840 do_new_scheme = use_new_scheme(udev, retry_counter, port_dev); in hub_port_init()
4852 retval = hub_enable_device(udev); in hub_port_init()
4854 dev_err(&udev->dev, in hub_port_init()
4874 r = usb_control_msg(udev, usb_rcvaddr0pipe(), in hub_port_init()
4900 udev->speed > USB_SPEED_FULL)) in hub_port_init()
4903 udev->descriptor.bMaxPacketSize0 = in hub_port_init()
4907 retval = hub_port_reset(hub, port1, udev, delay, false); in hub_port_init()
4910 if (oldspeed != udev->speed) { in hub_port_init()
4911 dev_dbg(&udev->dev, in hub_port_init()
4918 dev_err(&udev->dev, "device descriptor read/64, error %d\n", in hub_port_init()
4931 if (udev->wusb == 0) { in hub_port_init()
4933 retval = hub_set_address(udev, devnum); in hub_port_init()
4940 dev_err(&udev->dev, "device not accepting address %d, error %d\n", in hub_port_init()
4944 if (udev->speed >= USB_SPEED_SUPER) { in hub_port_init()
4945 devnum = udev->devnum; in hub_port_init()
4946 dev_info(&udev->dev, in hub_port_init()
4948 (udev->config) ? "reset" : "new", in hub_port_init()
4949 (udev->speed == USB_SPEED_SUPER_PLUS) ? in hub_port_init()
4951 (udev->ssp_rate == USB_SSP_GEN_2x2) ? in hub_port_init()
4953 (udev->ssp_rate == USB_SSP_GEN_2x1) ? in hub_port_init()
4955 (udev->ssp_rate == USB_SSP_GEN_1x2) ? in hub_port_init()
4969 retval = usb_get_device_descriptor(udev, 8); in hub_port_init()
4972 dev_err(&udev->dev, in hub_port_init()
4982 delay = udev->parent->hub_delay; in hub_port_init()
4983 udev->hub_delay = min_t(u32, delay, in hub_port_init()
4985 retval = usb_set_isoch_delay(udev); in hub_port_init()
4987 dev_dbg(&udev->dev, in hub_port_init()
5004 if ((udev->speed >= USB_SPEED_SUPER) && in hub_port_init()
5005 (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0300)) { in hub_port_init()
5006 dev_err(&udev->dev, "got a wrong device descriptor, " in hub_port_init()
5008 hub_port_reset(hub, port1, udev, in hub_port_init()
5014 if (udev->descriptor.bMaxPacketSize0 == 0xff || in hub_port_init()
5015 udev->speed >= USB_SPEED_SUPER) in hub_port_init()
5018 i = udev->descriptor.bMaxPacketSize0; in hub_port_init()
5019 if (usb_endpoint_maxp(&udev->ep0.desc) != i) { in hub_port_init()
5020 if (udev->speed == USB_SPEED_LOW || in hub_port_init()
5022 dev_err(&udev->dev, "Invalid ep0 maxpacket: %d\n", i); in hub_port_init()
5026 if (udev->speed == USB_SPEED_FULL) in hub_port_init()
5027 dev_dbg(&udev->dev, "ep0 maxpacket = %d\n", i); in hub_port_init()
5029 dev_warn(&udev->dev, "Using ep0 maxpacket: %d\n", i); in hub_port_init()
5030 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(i); in hub_port_init()
5031 usb_ep0_reinit(udev); in hub_port_init()
5034 retval = usb_get_device_descriptor(udev, USB_DT_DEVICE_SIZE); in hub_port_init()
5035 if (retval < (signed)sizeof(udev->descriptor)) { in hub_port_init()
5037 dev_err(&udev->dev, "device descriptor read/all, error %d\n", in hub_port_init()
5044 usb_detect_quirks(udev); in hub_port_init()
5046 if (udev->wusb == 0 && le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0201) { in hub_port_init()
5047 retval = usb_get_bos_descriptor(udev); in hub_port_init()
5049 udev->lpm_capable = usb_device_supports_lpm(udev); in hub_port_init()
5050 udev->lpm_disable_count = 1; in hub_port_init()
5051 usb_set_lpm_parameters(udev); in hub_port_init()
5052 usb_req_set_sel(udev); in hub_port_init()
5059 hcd->driver->update_device(hcd, udev); in hub_port_init()
5060 hub_set_initial_usb2_lpm_policy(udev); in hub_port_init()
5064 update_devnum(udev, devnum); /* for disconnect processing */ in hub_port_init()
5070 check_highspeed(struct usb_hub *hub, struct usb_device *udev, int port1) in check_highspeed() argument
5075 if (udev->quirks & USB_QUIRK_DEVICE_QUALIFIER) in check_highspeed()
5082 status = usb_get_descriptor(udev, USB_DT_DEVICE_QUALIFIER, 0, in check_highspeed()
5085 dev_info(&udev->dev, "not running at top speed; " in check_highspeed()
5110 struct usb_device *udev = port_dev->child; in hub_power_remaining() local
5114 if (!udev) in hub_power_remaining()
5116 if (hub_is_superspeed(udev)) in hub_power_remaining()
5125 if (udev->actconfig) in hub_power_remaining()
5126 delta = usb_get_max_power(udev, udev->actconfig); in hub_power_remaining()
5127 else if (port1 != udev->bus->otg_port || hdev->parent) in hub_power_remaining()
5145 static int descriptors_changed(struct usb_device *udev, in descriptors_changed() argument
5157 if (memcmp(&udev->descriptor, old_device_descriptor, in descriptors_changed()
5161 if ((old_bos && !udev->bos) || (!old_bos && udev->bos)) in descriptors_changed()
5163 if (udev->bos) { in descriptors_changed()
5164 len = le16_to_cpu(udev->bos->desc->wTotalLength); in descriptors_changed()
5167 if (memcmp(udev->bos->desc, old_bos->desc, len)) in descriptors_changed()
5177 if (udev->serial) in descriptors_changed()
5178 serial_len = strlen(udev->serial) + 1; in descriptors_changed()
5181 for (index = 0; index < udev->descriptor.bNumConfigurations; index++) { in descriptors_changed()
5182 old_length = le16_to_cpu(udev->config[index].desc.wTotalLength); in descriptors_changed()
5191 for (index = 0; index < udev->descriptor.bNumConfigurations; index++) { in descriptors_changed()
5192 old_length = le16_to_cpu(udev->config[index].desc.wTotalLength); in descriptors_changed()
5193 length = usb_get_descriptor(udev, USB_DT_CONFIG, index, buf, in descriptors_changed()
5196 dev_dbg(&udev->dev, "config index %d, error %d\n", in descriptors_changed()
5201 if (memcmp(buf, udev->rawdescriptors[index], old_length) in descriptors_changed()
5203 dev_dbg(&udev->dev, "config index %d changed (#%d)\n", in descriptors_changed()
5213 length = usb_string(udev, udev->descriptor.iSerialNumber, in descriptors_changed()
5216 dev_dbg(&udev->dev, "serial string error %d\n", in descriptors_changed()
5219 } else if (memcmp(buf, udev->serial, length) != 0) { in descriptors_changed()
5220 dev_dbg(&udev->dev, "serial string changed\n"); in descriptors_changed()
5238 struct usb_device *udev = port_dev->child; in hub_port_connect() local
5243 if (udev) { in hub_port_connect()
5245 usb_phy_notify_disconnect(hcd->usb_phy, udev->speed); in hub_port_connect()
5309 udev = usb_alloc_dev(hdev, hdev->bus, port1); in hub_port_connect()
5310 if (!udev) { in hub_port_connect()
5318 usb_set_device_state(udev, USB_STATE_POWERED); in hub_port_connect()
5319 udev->bus_mA = hub->mA_per_port; in hub_port_connect()
5320 udev->level = hdev->level + 1; in hub_port_connect()
5321 udev->wusb = hub_is_wusb(hub); in hub_port_connect()
5325 udev->speed = USB_SPEED_SUPER; in hub_port_connect()
5327 udev->speed = USB_SPEED_UNKNOWN; in hub_port_connect()
5329 choose_devnum(udev); in hub_port_connect()
5330 if (udev->devnum <= 0) { in hub_port_connect()
5336 status = hub_port_init(hub, udev, port1, i); in hub_port_connect()
5344 if (udev->quirks & USB_QUIRK_DELAY_INIT) in hub_port_connect()
5353 if (udev->descriptor.bDeviceClass == USB_CLASS_HUB in hub_port_connect()
5354 && udev->bus_mA <= unit_load) { in hub_port_connect()
5357 status = usb_get_std_status(udev, USB_RECIP_DEVICE, 0, in hub_port_connect()
5360 dev_dbg(&udev->dev, "get status %d ?\n", status); in hub_port_connect()
5364 dev_err(&udev->dev, in hub_port_connect()
5380 if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0200 in hub_port_connect()
5381 && udev->speed == USB_SPEED_FULL in hub_port_connect()
5383 check_highspeed(hub, udev, port1); in hub_port_connect()
5401 port_dev->child = udev; in hub_port_connect()
5407 status = usb_new_device(udev); in hub_port_connect()
5417 udev->speed); in hub_port_connect()
5433 usb_ep0_reinit(udev); in hub_port_connect()
5434 release_devnum(udev); in hub_port_connect()
5435 hub_free_dev(udev); in hub_port_connect()
5440 usb_put_dev(udev); in hub_port_connect()
5482 struct usb_device *udev = port_dev->child; in hub_port_connect_change() local
5503 if ((portstatus & USB_PORT_STAT_CONNECTION) && udev && in hub_port_connect_change()
5504 udev->state != USB_STATE_NOTATTACHED) { in hub_port_connect_change()
5512 descriptor = udev->descriptor; in hub_port_connect_change()
5513 retval = usb_get_device_descriptor(udev, in hub_port_connect_change()
5514 sizeof(udev->descriptor)); in hub_port_connect_change()
5516 dev_dbg(&udev->dev, in hub_port_connect_change()
5520 if (descriptors_changed(udev, &descriptor, in hub_port_connect_change()
5521 udev->bos)) { in hub_port_connect_change()
5522 dev_dbg(&udev->dev, in hub_port_connect_change()
5525 udev->descriptor = descriptor; in hub_port_connect_change()
5531 } else if (udev->state == USB_STATE_SUSPENDED && in hub_port_connect_change()
5532 udev->persist_enabled) { in hub_port_connect_change()
5537 status = usb_remote_wakeup(udev); in hub_port_connect_change()
5595 struct usb_device *udev = port_dev->child; in port_event() local
5624 && !connect_change && udev) { in port_event()
5685 if ((i++ < DETECT_DISCONNECT_TRIES) && udev) { in port_event()
5692 } else if (!udev || !(portstatus & USB_PORT_STAT_CONNECTION) in port_event()
5693 || udev->state == USB_STATE_NOTATTACHED) { in port_event()
5701 usb_lock_device(udev); in port_event()
5702 usb_reset_device(udev); in port_event()
5703 usb_unlock_device(udev); in port_event()
5965 static int usb_reset_and_verify_device(struct usb_device *udev) in usb_reset_and_verify_device() argument
5967 struct usb_device *parent_hdev = udev->parent; in usb_reset_and_verify_device()
5969 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_reset_and_verify_device()
5970 struct usb_device_descriptor descriptor = udev->descriptor; in usb_reset_and_verify_device()
5973 int port1 = udev->portnum; in usb_reset_and_verify_device()
5975 if (udev->state == USB_STATE_NOTATTACHED || in usb_reset_and_verify_device()
5976 udev->state == USB_STATE_SUSPENDED) { in usb_reset_and_verify_device()
5977 dev_dbg(&udev->dev, "device reset not allowed in state %d\n", in usb_reset_and_verify_device()
5978 udev->state); in usb_reset_and_verify_device()
5990 usb_disable_usb2_hardware_lpm(udev); in usb_reset_and_verify_device()
5992 bos = udev->bos; in usb_reset_and_verify_device()
5993 udev->bos = NULL; in usb_reset_and_verify_device()
6005 usb_ep0_reinit(udev); in usb_reset_and_verify_device()
6006 ret = hub_port_init(parent_hub, udev, port1, i); in usb_reset_and_verify_device()
6016 if (descriptors_changed(udev, &descriptor, bos)) { in usb_reset_and_verify_device()
6017 dev_info(&udev->dev, "device firmware changed\n"); in usb_reset_and_verify_device()
6018 udev->descriptor = descriptor; /* for disconnect() calls */ in usb_reset_and_verify_device()
6023 if (!udev->actconfig) in usb_reset_and_verify_device()
6027 ret = usb_hcd_alloc_bandwidth(udev, udev->actconfig, NULL, NULL); in usb_reset_and_verify_device()
6029 dev_warn(&udev->dev, in usb_reset_and_verify_device()
6035 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_reset_and_verify_device()
6037 udev->actconfig->desc.bConfigurationValue, 0, in usb_reset_and_verify_device()
6040 dev_err(&udev->dev, in usb_reset_and_verify_device()
6042 udev->actconfig->desc.bConfigurationValue, ret); in usb_reset_and_verify_device()
6047 usb_set_device_state(udev, USB_STATE_CONFIGURED); in usb_reset_and_verify_device()
6055 for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { in usb_reset_and_verify_device()
6056 struct usb_host_config *config = udev->actconfig; in usb_reset_and_verify_device()
6062 usb_disable_interface(udev, intf, true); in usb_reset_and_verify_device()
6063 usb_enable_interface(udev, intf, true); in usb_reset_and_verify_device()
6071 ret = usb_set_interface(udev, desc->bInterfaceNumber, in usb_reset_and_verify_device()
6076 dev_err(&udev->dev, "failed to restore interface %d " in usb_reset_and_verify_device()
6090 usb_enable_usb2_hardware_lpm(udev); in usb_reset_and_verify_device()
6091 usb_unlocked_enable_lpm(udev); in usb_reset_and_verify_device()
6092 usb_enable_ltm(udev); in usb_reset_and_verify_device()
6093 usb_release_bos_descriptor(udev); in usb_reset_and_verify_device()
6094 udev->bos = bos; in usb_reset_and_verify_device()
6098 usb_release_bos_descriptor(udev); in usb_reset_and_verify_device()
6099 udev->bos = bos; in usb_reset_and_verify_device()
6130 int usb_reset_device(struct usb_device *udev) in usb_reset_device() argument
6136 struct usb_host_config *config = udev->actconfig; in usb_reset_device()
6137 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_reset_device()
6139 if (udev->state == USB_STATE_NOTATTACHED) { in usb_reset_device()
6140 dev_dbg(&udev->dev, "device reset not allowed in state %d\n", in usb_reset_device()
6141 udev->state); in usb_reset_device()
6145 if (!udev->parent) { in usb_reset_device()
6147 dev_dbg(&udev->dev, "%s for root hub!\n", __func__); in usb_reset_device()
6151 if (udev->reset_in_progress) in usb_reset_device()
6153 udev->reset_in_progress = 1; in usb_reset_device()
6155 port_dev = hub->ports[udev->portnum - 1]; in usb_reset_device()
6169 usb_autoresume_device(udev); in usb_reset_device()
6191 ret = usb_reset_and_verify_device(udev); in usb_reset_device()
6214 usb_unbind_and_rebind_marked_interfaces(udev); in usb_reset_device()
6217 usb_autosuspend_device(udev); in usb_reset_device()
6219 udev->reset_in_progress = 0; in usb_reset_device()