Lines Matching refs:udev
118 static int usb_reset_and_verify_device(struct usb_device *udev);
145 int usb_device_supports_lpm(struct usb_device *udev) in usb_device_supports_lpm() argument
148 if (udev->quirks & USB_QUIRK_NO_LPM) in usb_device_supports_lpm()
154 if (udev->speed == USB_SPEED_HIGH || udev->speed == USB_SPEED_FULL) { in usb_device_supports_lpm()
155 if (udev->bos->ext_cap && in usb_device_supports_lpm()
157 le32_to_cpu(udev->bos->ext_cap->bmAttributes))) in usb_device_supports_lpm()
167 if (!udev->bos->ss_cap) { in usb_device_supports_lpm()
168 dev_info(&udev->dev, "No LPM exit latency info found, disabling LPM.\n"); in usb_device_supports_lpm()
172 if (udev->bos->ss_cap->bU1devExitLat == 0 && in usb_device_supports_lpm()
173 udev->bos->ss_cap->bU2DevExitLat == 0) { in usb_device_supports_lpm()
174 if (udev->parent) in usb_device_supports_lpm()
175 dev_info(&udev->dev, "LPM exit latency is zeroed, disabling LPM.\n"); in usb_device_supports_lpm()
177 dev_info(&udev->dev, "We don't know the algorithms for LPM for this host, disabling LPM.\n"); in usb_device_supports_lpm()
181 if (!udev->parent || udev->parent->lpm_capable) in usb_device_supports_lpm()
191 static void usb_set_lpm_mel(struct usb_device *udev, in usb_set_lpm_mel() argument
238 static void usb_set_lpm_pel(struct usb_device *udev, in usb_set_lpm_pel() argument
292 static void usb_set_lpm_sel(struct usb_device *udev, in usb_set_lpm_sel() argument
302 for (parent = udev->parent, num_hubs = 0; parent->parent; in usb_set_lpm_sel()
315 static void usb_set_lpm_parameters(struct usb_device *udev) in usb_set_lpm_parameters() argument
324 if (!udev->lpm_capable || udev->speed < USB_SPEED_SUPER) in usb_set_lpm_parameters()
327 hub = usb_hub_to_struct_hub(udev->parent); in usb_set_lpm_parameters()
334 udev_u1_del = udev->bos->ss_cap->bU1devExitLat; in usb_set_lpm_parameters()
335 udev_u2_del = le16_to_cpu(udev->bos->ss_cap->bU2DevExitLat); in usb_set_lpm_parameters()
336 hub_u1_del = udev->parent->bos->ss_cap->bU1devExitLat; in usb_set_lpm_parameters()
337 hub_u2_del = le16_to_cpu(udev->parent->bos->ss_cap->bU2DevExitLat); in usb_set_lpm_parameters()
339 usb_set_lpm_mel(udev, &udev->u1_params, udev_u1_del, in usb_set_lpm_parameters()
340 hub, &udev->parent->u1_params, hub_u1_del); in usb_set_lpm_parameters()
342 usb_set_lpm_mel(udev, &udev->u2_params, udev_u2_del, in usb_set_lpm_parameters()
343 hub, &udev->parent->u2_params, hub_u2_del); in usb_set_lpm_parameters()
364 usb_set_lpm_pel(udev, &udev->u1_params, udev_u1_del, in usb_set_lpm_parameters()
365 hub, &udev->parent->u1_params, hub_u1_del, in usb_set_lpm_parameters()
373 usb_set_lpm_pel(udev, &udev->u2_params, udev_u2_del, in usb_set_lpm_parameters()
374 hub, &udev->parent->u2_params, hub_u2_del, in usb_set_lpm_parameters()
378 usb_set_lpm_sel(udev, &udev->u1_params); in usb_set_lpm_parameters()
379 usb_set_lpm_sel(udev, &udev->u2_params); in usb_set_lpm_parameters()
868 struct usb_device *udev = urb->dev; in usb_hub_clear_tt_buffer() local
870 struct usb_tt *tt = udev->tt; in usb_hub_clear_tt_buffer()
880 dev_err(&udev->dev, "can't save CLEAR_TT_BUFFER state\n"); in usb_hub_clear_tt_buffer()
886 clear->tt = tt->multi ? udev->ttport : 1; in usb_hub_clear_tt_buffer()
888 clear->devinfo |= ((u16)udev->devaddr) << 4; in usb_hub_clear_tt_buffer()
896 clear->hcd = bus_to_hcd(udev->bus); in usb_hub_clear_tt_buffer()
996 int usb_remove_device(struct usb_device *udev) in usb_remove_device() argument
1002 if (!udev->parent) /* Can't remove a root hub */ in usb_remove_device()
1004 hub = usb_hub_to_struct_hub(udev->parent); in usb_remove_device()
1011 set_bit(udev->portnum, hub->removed_bits); in usb_remove_device()
1012 hub_port_logical_disconnect(hub, udev->portnum); in usb_remove_device()
1126 struct usb_device *udev = port_dev->child; in hub_activate() local
1134 if (udev || (portstatus & USB_PORT_STAT_CONNECTION)) in hub_activate()
1147 !udev || in hub_activate()
1148 udev->state == USB_STATE_NOTATTACHED)) { in hub_activate()
1205 if (!udev || udev->state == USB_STATE_NOTATTACHED) { in hub_activate()
1212 if (udev || (portstatus & USB_PORT_STAT_CONNECTION) || in hub_activate()
1234 } else if (udev->persist_enabled) { in hub_activate()
1236 udev->reset_resume = 1; in hub_activate()
1246 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in hub_activate()
2008 bool usb_device_is_owned(struct usb_device *udev) in usb_device_is_owned() argument
2012 if (udev->state == USB_STATE_NOTATTACHED || !udev->parent) in usb_device_is_owned()
2014 hub = usb_hub_to_struct_hub(udev->parent); in usb_device_is_owned()
2015 return !!hub->ports[udev->portnum - 1]->port_owner; in usb_device_is_owned()
2018 static void recursively_mark_NOTATTACHED(struct usb_device *udev) in recursively_mark_NOTATTACHED() argument
2020 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in recursively_mark_NOTATTACHED()
2023 for (i = 0; i < udev->maxchild; ++i) { in recursively_mark_NOTATTACHED()
2027 if (udev->state == USB_STATE_SUSPENDED) in recursively_mark_NOTATTACHED()
2028 udev->active_duration -= jiffies; in recursively_mark_NOTATTACHED()
2029 udev->state = USB_STATE_NOTATTACHED; in recursively_mark_NOTATTACHED()
2053 void usb_set_device_state(struct usb_device *udev, in usb_set_device_state() argument
2060 if (udev->state == USB_STATE_NOTATTACHED) in usb_set_device_state()
2067 if (udev->parent) { in usb_set_device_state()
2068 if (udev->state == USB_STATE_SUSPENDED in usb_set_device_state()
2072 wakeup = (udev->quirks & in usb_set_device_state()
2074 udev->actconfig->desc.bmAttributes & in usb_set_device_state()
2079 if (udev->state == USB_STATE_SUSPENDED && in usb_set_device_state()
2081 udev->active_duration -= jiffies; in usb_set_device_state()
2083 udev->state != USB_STATE_SUSPENDED) in usb_set_device_state()
2084 udev->active_duration += jiffies; in usb_set_device_state()
2085 udev->state = new_state; in usb_set_device_state()
2087 recursively_mark_NOTATTACHED(udev); in usb_set_device_state()
2090 device_set_wakeup_capable(&udev->dev, wakeup); in usb_set_device_state()
2123 static void choose_devnum(struct usb_device *udev) in choose_devnum() argument
2126 struct usb_bus *bus = udev->bus; in choose_devnum()
2130 if (udev->wusb) { in choose_devnum()
2131 devnum = udev->portnum + 1; in choose_devnum()
2145 udev->devnum = devnum; in choose_devnum()
2150 static void release_devnum(struct usb_device *udev) in release_devnum() argument
2152 if (udev->devnum > 0) { in release_devnum()
2153 clear_bit(udev->devnum, udev->bus->devmap.devicemap); in release_devnum()
2154 udev->devnum = -1; in release_devnum()
2158 static void update_devnum(struct usb_device *udev, int devnum) in update_devnum() argument
2161 if (!udev->wusb) in update_devnum()
2162 udev->devnum = devnum; in update_devnum()
2163 if (!udev->devaddr) in update_devnum()
2164 udev->devaddr = (u8)devnum; in update_devnum()
2167 static void hub_free_dev(struct usb_device *udev) in hub_free_dev() argument
2169 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_free_dev()
2172 if (hcd->driver->free_dev && udev->parent) in hub_free_dev()
2173 hcd->driver->free_dev(hcd, udev); in hub_free_dev()
2176 static void hub_disconnect_children(struct usb_device *udev) in hub_disconnect_children() argument
2178 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in hub_disconnect_children()
2182 for (i = 0; i < udev->maxchild; i++) { in hub_disconnect_children()
2208 struct usb_device *udev = *pdev; in usb_disconnect() local
2216 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in usb_disconnect()
2217 dev_info(&udev->dev, "USB disconnect, device number %d\n", in usb_disconnect()
2218 udev->devnum); in usb_disconnect()
2224 pm_runtime_barrier(&udev->dev); in usb_disconnect()
2226 usb_lock_device(udev); in usb_disconnect()
2228 hub_disconnect_children(udev); in usb_disconnect()
2234 dev_dbg(&udev->dev, "unregistering device\n"); in usb_disconnect()
2235 usb_disable_device(udev, 0); in usb_disconnect()
2236 usb_hcd_synchronize_unlinks(udev); in usb_disconnect()
2238 if (udev->parent) { in usb_disconnect()
2239 port1 = udev->portnum; in usb_disconnect()
2240 hub = usb_hub_to_struct_hub(udev->parent); in usb_disconnect()
2243 sysfs_remove_link(&udev->dev.kobj, "port"); in usb_disconnect()
2254 usb_remove_ep_devs(&udev->ep0); in usb_disconnect()
2255 usb_unlock_device(udev); in usb_disconnect()
2261 device_del(&udev->dev); in usb_disconnect()
2266 release_devnum(udev); in usb_disconnect()
2276 hub_free_dev(udev); in usb_disconnect()
2278 put_device(&udev->dev); in usb_disconnect()
2282 static void show_string(struct usb_device *udev, char *id, char *string) in show_string() argument
2286 dev_info(&udev->dev, "%s: %s\n", id, string); in show_string()
2289 static void announce_device(struct usb_device *udev) in announce_device() argument
2291 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); in announce_device()
2293 dev_info(&udev->dev, in announce_device()
2295 le16_to_cpu(udev->descriptor.idVendor), in announce_device()
2296 le16_to_cpu(udev->descriptor.idProduct), in announce_device()
2298 dev_info(&udev->dev, in announce_device()
2300 udev->descriptor.iManufacturer, in announce_device()
2301 udev->descriptor.iProduct, in announce_device()
2302 udev->descriptor.iSerialNumber); in announce_device()
2303 show_string(udev, "Product", udev->product); in announce_device()
2304 show_string(udev, "Manufacturer", udev->manufacturer); in announce_device()
2305 show_string(udev, "SerialNumber", udev->serial); in announce_device()
2308 static inline void announce_device(struct usb_device *udev) { } in announce_device() argument
2320 static int usb_enumerate_device_otg(struct usb_device *udev) in usb_enumerate_device_otg() argument
2330 if (!udev->bus->is_b_host in usb_enumerate_device_otg()
2331 && udev->config in usb_enumerate_device_otg()
2332 && udev->parent == udev->bus->root_hub) { in usb_enumerate_device_otg()
2334 struct usb_bus *bus = udev->bus; in usb_enumerate_device_otg()
2335 unsigned port1 = udev->portnum; in usb_enumerate_device_otg()
2338 err = __usb_get_extra_descriptor(udev->rawdescriptors[0], in usb_enumerate_device_otg()
2339 le16_to_cpu(udev->config[0].desc.wTotalLength), in usb_enumerate_device_otg()
2344 dev_info(&udev->dev, "Dual-Role OTG device on %sHNP port\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()
2361 dev_err(&udev->dev, "can't set HNP mode: %d\n", in usb_enumerate_device_otg()
2368 err = usb_control_msg(udev, in usb_enumerate_device_otg()
2369 usb_sndctrlpipe(udev, 0), in usb_enumerate_device_otg()
2375 dev_err(&udev->dev, in usb_enumerate_device_otg()
2399 static int usb_enumerate_device(struct usb_device *udev) in usb_enumerate_device() argument
2402 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_enumerate_device()
2404 if (udev->config == NULL) { in usb_enumerate_device()
2405 err = usb_get_configuration(udev); in usb_enumerate_device()
2408 dev_err(&udev->dev, "can't read configurations, error %d\n", in usb_enumerate_device()
2415 udev->product = usb_cache_string(udev, udev->descriptor.iProduct); in usb_enumerate_device()
2416 udev->manufacturer = usb_cache_string(udev, in usb_enumerate_device()
2417 udev->descriptor.iManufacturer); in usb_enumerate_device()
2418 udev->serial = usb_cache_string(udev, udev->descriptor.iSerialNumber); in usb_enumerate_device()
2420 err = usb_enumerate_device_otg(udev); in usb_enumerate_device()
2425 !is_targeted(udev)) { in usb_enumerate_device()
2429 if (IS_ENABLED(CONFIG_USB_OTG) && (udev->bus->b_hnp_enable in usb_enumerate_device()
2430 || udev->bus->is_b_host)) { in usb_enumerate_device()
2431 err = usb_port_suspend(udev, PMSG_AUTO_SUSPEND); in usb_enumerate_device()
2433 dev_dbg(&udev->dev, "HNP fail, %d\n", err); in usb_enumerate_device()
2438 usb_detect_interface_quirks(udev); in usb_enumerate_device()
2443 static void set_usb_port_removable(struct usb_device *udev) in set_usb_port_removable() argument
2445 struct usb_device *hdev = udev->parent; in set_usb_port_removable()
2447 u8 port = udev->portnum; in set_usb_port_removable()
2451 dev_set_removable(&udev->dev, DEVICE_REMOVABLE_UNKNOWN); in set_usb_port_removable()
2456 hub = usb_hub_to_struct_hub(udev->parent); in set_usb_port_removable()
2462 switch (hub->ports[udev->portnum - 1]->connect_type) { in set_usb_port_removable()
2464 dev_set_removable(&udev->dev, DEVICE_REMOVABLE); in set_usb_port_removable()
2468 dev_set_removable(&udev->dev, DEVICE_FIXED); in set_usb_port_removable()
2493 dev_set_removable(&udev->dev, DEVICE_REMOVABLE); in set_usb_port_removable()
2495 dev_set_removable(&udev->dev, DEVICE_FIXED); in set_usb_port_removable()
2520 int usb_new_device(struct usb_device *udev) in usb_new_device() argument
2524 if (udev->parent) { in usb_new_device()
2529 device_init_wakeup(&udev->dev, 0); in usb_new_device()
2533 pm_runtime_set_active(&udev->dev); in usb_new_device()
2534 pm_runtime_get_noresume(&udev->dev); in usb_new_device()
2535 pm_runtime_use_autosuspend(&udev->dev); in usb_new_device()
2536 pm_runtime_enable(&udev->dev); in usb_new_device()
2541 usb_disable_autosuspend(udev); in usb_new_device()
2543 err = usb_enumerate_device(udev); /* Read descriptors */ in usb_new_device()
2546 dev_dbg(&udev->dev, "udev %d, busnum %d, minor = %d\n", in usb_new_device()
2547 udev->devnum, udev->bus->busnum, in usb_new_device()
2548 (((udev->bus->busnum-1) * 128) + (udev->devnum-1))); in usb_new_device()
2550 udev->dev.devt = MKDEV(USB_DEVICE_MAJOR, in usb_new_device()
2551 (((udev->bus->busnum-1) * 128) + (udev->devnum-1))); in usb_new_device()
2554 announce_device(udev); in usb_new_device()
2556 if (udev->serial) in usb_new_device()
2557 add_device_randomness(udev->serial, strlen(udev->serial)); in usb_new_device()
2558 if (udev->product) in usb_new_device()
2559 add_device_randomness(udev->product, strlen(udev->product)); in usb_new_device()
2560 if (udev->manufacturer) in usb_new_device()
2561 add_device_randomness(udev->manufacturer, in usb_new_device()
2562 strlen(udev->manufacturer)); in usb_new_device()
2564 device_enable_async_suspend(&udev->dev); in usb_new_device()
2567 set_usb_port_removable(udev); in usb_new_device()
2573 err = device_add(&udev->dev); in usb_new_device()
2575 dev_err(&udev->dev, "can't device_add, error %d\n", err); in usb_new_device()
2580 if (udev->parent) { in usb_new_device()
2581 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_new_device()
2582 int port1 = udev->portnum; in usb_new_device()
2585 err = sysfs_create_link(&udev->dev.kobj, in usb_new_device()
2591 &udev->dev.kobj, "device"); in usb_new_device()
2593 sysfs_remove_link(&udev->dev.kobj, "port"); in usb_new_device()
2601 (void) usb_create_ep_devs(&udev->dev, &udev->ep0, udev); in usb_new_device()
2602 usb_mark_last_busy(udev); in usb_new_device()
2603 pm_runtime_put_sync_autosuspend(&udev->dev); in usb_new_device()
2607 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in usb_new_device()
2608 pm_runtime_disable(&udev->dev); in usb_new_device()
2609 pm_runtime_set_suspended(&udev->dev); in usb_new_device()
2798 static bool use_new_scheme(struct usb_device *udev, int retry, in use_new_scheme() argument
2812 if (udev->speed >= USB_SPEED_SUPER) in use_new_scheme()
2845 struct usb_device *udev, unsigned int delay, bool warm) in hub_port_wait_reset() argument
2914 if (!udev) in hub_port_wait_reset()
2919 udev->rx_lanes = USB_EXT_PORT_RX_LANES(ext_portstatus) + 1; in hub_port_wait_reset()
2920 udev->tx_lanes = USB_EXT_PORT_TX_LANES(ext_portstatus) + 1; in hub_port_wait_reset()
2921 udev->ssp_rate = get_port_ssp_rate(hub->hdev, ext_portstatus); in hub_port_wait_reset()
2923 udev->rx_lanes = 1; in hub_port_wait_reset()
2924 udev->tx_lanes = 1; in hub_port_wait_reset()
2925 udev->ssp_rate = USB_SSP_GEN_UNKNOWN; in hub_port_wait_reset()
2928 udev->speed = USB_SPEED_WIRELESS; in hub_port_wait_reset()
2929 else if (udev->ssp_rate != USB_SSP_GEN_UNKNOWN) in hub_port_wait_reset()
2930 udev->speed = USB_SPEED_SUPER_PLUS; in hub_port_wait_reset()
2932 udev->speed = USB_SPEED_SUPER; in hub_port_wait_reset()
2934 udev->speed = USB_SPEED_HIGH; in hub_port_wait_reset()
2936 udev->speed = USB_SPEED_LOW; in hub_port_wait_reset()
2938 udev->speed = USB_SPEED_FULL; in hub_port_wait_reset()
2944 struct usb_device *udev, unsigned int delay, bool warm) in hub_port_reset() argument
2986 status = hub_port_wait_reset(hub, port1, udev, delay, in hub_port_reset()
3011 if (udev) in hub_port_reset()
3061 if (udev) { in hub_port_reset()
3062 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_port_reset()
3064 update_devnum(udev, 0); in hub_port_reset()
3069 hcd->driver->reset_device(hcd, udev); in hub_port_reset()
3071 usb_set_device_state(udev, USB_STATE_DEFAULT); in hub_port_reset()
3074 if (udev) in hub_port_reset()
3075 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in hub_port_reset()
3136 static int check_port_resume_type(struct usb_device *udev, in check_port_resume_type() argument
3145 if (status == 0 && udev->reset_resume in check_port_resume_type()
3167 else if (!(portstatus & USB_PORT_STAT_ENABLE) && !udev->reset_resume) { in check_port_resume_type()
3168 if (udev->persist_enabled) in check_port_resume_type()
3169 udev->reset_resume = 1; in check_port_resume_type()
3177 } else if (udev->reset_resume) { in check_port_resume_type()
3200 int usb_disable_ltm(struct usb_device *udev) in usb_disable_ltm() argument
3202 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_disable_ltm()
3206 !usb_device_supports_ltm(udev)) in usb_disable_ltm()
3212 if (!udev->actconfig) in usb_disable_ltm()
3215 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_ltm()
3222 void usb_enable_ltm(struct usb_device *udev) in usb_enable_ltm() argument
3224 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_enable_ltm()
3228 !usb_device_supports_ltm(udev)) in usb_enable_ltm()
3234 if (!udev->actconfig) in usb_enable_ltm()
3237 usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_ltm()
3254 static int usb_enable_remote_wakeup(struct usb_device *udev) in usb_enable_remote_wakeup() argument
3256 if (udev->speed < USB_SPEED_SUPER) in usb_enable_remote_wakeup()
3257 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_remote_wakeup()
3262 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_remote_wakeup()
3280 static int usb_disable_remote_wakeup(struct usb_device *udev) in usb_disable_remote_wakeup() argument
3282 if (udev->speed < USB_SPEED_SUPER) in usb_disable_remote_wakeup()
3283 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_remote_wakeup()
3288 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_remote_wakeup()
3295 unsigned usb_wakeup_enabled_descendants(struct usb_device *udev) in usb_wakeup_enabled_descendants() argument
3297 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in usb_wakeup_enabled_descendants()
3299 return udev->do_remote_wakeup + in usb_wakeup_enabled_descendants()
3352 int usb_port_suspend(struct usb_device *udev, pm_message_t msg) in usb_port_suspend() argument
3354 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_suspend()
3355 struct usb_port *port_dev = hub->ports[udev->portnum - 1]; in usb_port_suspend()
3356 int port1 = udev->portnum; in usb_port_suspend()
3368 if (udev->do_remote_wakeup) { in usb_port_suspend()
3369 status = usb_enable_remote_wakeup(udev); in usb_port_suspend()
3371 dev_dbg(&udev->dev, "won't remote wakeup, status %d\n", in usb_port_suspend()
3380 usb_disable_usb2_hardware_lpm(udev); in usb_port_suspend()
3382 if (usb_disable_ltm(udev)) { in usb_port_suspend()
3383 dev_err(&udev->dev, "Failed to disable LTM before suspend\n"); in usb_port_suspend()
3404 else if (PMSG_IS_AUTO(msg) || usb_wakeup_enabled_descendants(udev) > 0) in usb_port_suspend()
3435 usb_enable_ltm(udev); in usb_port_suspend()
3438 usb_enable_usb2_hardware_lpm(udev); in usb_port_suspend()
3440 if (udev->do_remote_wakeup) in usb_port_suspend()
3441 (void) usb_disable_remote_wakeup(udev); in usb_port_suspend()
3449 dev_dbg(&udev->dev, "usb %ssuspend, wakeup %d\n", in usb_port_suspend()
3451 udev->do_remote_wakeup); in usb_port_suspend()
3453 udev->port_is_suspended = 1; in usb_port_suspend()
3458 usb_set_device_state(udev, USB_STATE_SUSPENDED); in usb_port_suspend()
3461 if (status == 0 && !udev->do_remote_wakeup && udev->persist_enabled in usb_port_suspend()
3482 static int finish_port_resume(struct usb_device *udev) in finish_port_resume() argument
3488 dev_dbg(&udev->dev, "%s\n", in finish_port_resume()
3489 udev->reset_resume ? "finish reset-resume" : "finish resume"); in finish_port_resume()
3496 usb_set_device_state(udev, udev->actconfig in finish_port_resume()
3505 if (udev->reset_resume) { in finish_port_resume()
3513 if (udev->quirks & USB_QUIRK_RESET) in finish_port_resume()
3516 status = usb_reset_and_verify_device(udev); in finish_port_resume()
3525 status = usb_get_std_status(udev, USB_RECIP_DEVICE, 0, &devstatus); in finish_port_resume()
3528 if (status && !udev->reset_resume && udev->persist_enabled) { in finish_port_resume()
3529 dev_dbg(&udev->dev, "retry with reset-resume\n"); in finish_port_resume()
3530 udev->reset_resume = 1; in finish_port_resume()
3536 dev_dbg(&udev->dev, "gone after usb resume? status %d\n", in finish_port_resume()
3544 } else if (udev->actconfig && !udev->reset_resume) { in finish_port_resume()
3545 if (udev->speed < USB_SPEED_SUPER) { in finish_port_resume()
3547 status = usb_disable_remote_wakeup(udev); in finish_port_resume()
3549 status = usb_get_std_status(udev, USB_RECIP_INTERFACE, 0, in finish_port_resume()
3553 status = usb_disable_remote_wakeup(udev); in finish_port_resume()
3557 dev_dbg(&udev->dev, in finish_port_resume()
3589 static int wait_for_connected(struct usb_device *udev, in wait_for_connected() argument
3606 dev_dbg(&udev->dev, "Waited %dms for CONNECT\n", delay_ms); in wait_for_connected()
3644 int usb_port_resume(struct usb_device *udev, pm_message_t msg) in usb_port_resume() argument
3646 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_resume()
3647 struct usb_port *port_dev = hub->ports[udev->portnum - 1]; in usb_port_resume()
3648 int port1 = udev->portnum; in usb_port_resume()
3655 dev_dbg(&udev->dev, "can't resume usb port, status %d\n", in usb_port_resume()
3667 pm_wakeup_event(&udev->dev, 0); in usb_port_resume()
3681 dev_dbg(&udev->dev, "usb %sresume\n", in usb_port_resume()
3694 udev->port_is_suspended = 0; in usb_port_resume()
3709 if (udev->persist_enabled) in usb_port_resume()
3710 status = wait_for_connected(udev, hub, port1, &portchange, in usb_port_resume()
3713 status = check_port_resume_type(udev, in usb_port_resume()
3716 status = finish_port_resume(udev); in usb_port_resume()
3718 dev_dbg(&udev->dev, "can't resume, status %d\n", status); in usb_port_resume()
3722 usb_enable_usb2_hardware_lpm(udev); in usb_port_resume()
3725 usb_enable_ltm(udev); in usb_port_resume()
3733 int usb_remote_wakeup(struct usb_device *udev) in usb_remote_wakeup() argument
3737 usb_lock_device(udev); in usb_remote_wakeup()
3738 if (udev->state == USB_STATE_SUSPENDED) { in usb_remote_wakeup()
3739 dev_dbg(&udev->dev, "usb %sresume\n", "wakeup-"); in usb_remote_wakeup()
3740 status = usb_autoresume_device(udev); in usb_remote_wakeup()
3743 usb_autosuspend_device(udev); in usb_remote_wakeup()
3746 usb_unlock_device(udev); in usb_remote_wakeup()
3757 struct usb_device *udev; in hub_handle_remote_wakeup() local
3763 udev = port_dev->child; in hub_handle_remote_wakeup()
3770 if (!udev || udev->state != USB_STATE_SUSPENDED || in hub_handle_remote_wakeup()
3777 if (udev) { in hub_handle_remote_wakeup()
3782 ret = usb_remote_wakeup(udev); in hub_handle_remote_wakeup()
3822 struct usb_device *udev = port_dev->child; in hub_suspend() local
3824 if (udev && udev->can_submit) { in hub_suspend()
3826 dev_name(&udev->dev)); in hub_suspend()
3830 if (udev) in hub_suspend()
3832 usb_wakeup_enabled_descendants(udev); in hub_suspend()
3867 struct usb_device *udev; in report_wakeup_requests() local
3889 udev = hub->ports[i]->child; in report_wakeup_requests()
3890 if (udev) in report_wakeup_requests()
3891 pm_wakeup_event(&udev->dev, 0); in report_wakeup_requests()
3957 static int usb_req_set_sel(struct usb_device *udev) in usb_req_set_sel() argument
3966 if (!udev->parent || udev->speed < USB_SPEED_SUPER || !udev->lpm_capable) in usb_req_set_sel()
3970 u1_sel = DIV_ROUND_UP(udev->u1_params.sel, 1000); in usb_req_set_sel()
3971 u1_pel = DIV_ROUND_UP(udev->u1_params.pel, 1000); in usb_req_set_sel()
3972 u2_sel = DIV_ROUND_UP(udev->u2_params.sel, 1000); in usb_req_set_sel()
3973 u2_pel = DIV_ROUND_UP(udev->u2_params.pel, 1000); in usb_req_set_sel()
3987 dev_dbg(&udev->dev, "Device-initiated U1/U2 disabled due to long SEL or PEL\n"); in usb_req_set_sel()
4005 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_req_set_sel()
4014 udev->lpm_devinit_allow = 1; in usb_req_set_sel()
4022 static int usb_set_device_initiated_lpm(struct usb_device *udev, in usb_set_device_initiated_lpm() argument
4036 dev_warn(&udev->dev, "%s: Can't %s non-U1 or U2 state.\n", in usb_set_device_initiated_lpm()
4041 if (udev->state != USB_STATE_CONFIGURED) { in usb_set_device_initiated_lpm()
4042 dev_dbg(&udev->dev, "%s: Can't %s %s state " in usb_set_device_initiated_lpm()
4054 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_set_device_initiated_lpm()
4061 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_set_device_initiated_lpm()
4069 dev_warn(&udev->dev, "%s of device-initiated %s failed.\n", in usb_set_device_initiated_lpm()
4077 static int usb_set_lpm_timeout(struct usb_device *udev, in usb_set_lpm_timeout() argument
4091 dev_warn(&udev->dev, "%s: Can't set timeout for non-U1 or U2 state.\n", in usb_set_lpm_timeout()
4098 dev_warn(&udev->dev, "Failed to set %s timeout to 0x%x, " in usb_set_lpm_timeout()
4104 ret = set_port_feature(udev->parent, in usb_set_lpm_timeout()
4105 USB_PORT_LPM_TIMEOUT(timeout) | udev->portnum, in usb_set_lpm_timeout()
4108 dev_warn(&udev->dev, "Failed to set %s timeout to 0x%x," in usb_set_lpm_timeout()
4114 udev->u1_params.timeout = timeout; in usb_set_lpm_timeout()
4116 udev->u2_params.timeout = timeout; in usb_set_lpm_timeout()
4125 static bool usb_device_may_initiate_lpm(struct usb_device *udev, in usb_device_may_initiate_lpm() argument
4131 if (!udev->lpm_devinit_allow) in usb_device_may_initiate_lpm()
4135 sel = DIV_ROUND_UP(udev->u1_params.sel, 1000); in usb_device_may_initiate_lpm()
4137 sel = DIV_ROUND_UP(udev->u2_params.sel, 1000); in usb_device_may_initiate_lpm()
4141 for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { in usb_device_may_initiate_lpm()
4146 intf = udev->actconfig->interface[i]; in usb_device_may_initiate_lpm()
4179 static void usb_enable_link_state(struct usb_hcd *hcd, struct usb_device *udev, in usb_enable_link_state() argument
4183 __u8 u1_mel = udev->bos->ss_cap->bU1devExitLat; in usb_enable_link_state()
4184 __le16 u2_mel = udev->bos->ss_cap->bU2DevExitLat; in usb_enable_link_state()
4199 timeout = hcd->driver->enable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4206 dev_warn(&udev->dev, "Could not enable %s link state, " in usb_enable_link_state()
4212 if (usb_set_lpm_timeout(udev, state, timeout)) { in usb_enable_link_state()
4217 hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4224 if (udev->actconfig && in usb_enable_link_state()
4225 usb_device_may_initiate_lpm(udev, state)) { in usb_enable_link_state()
4226 if (usb_set_device_initiated_lpm(udev, state, true)) { in usb_enable_link_state()
4231 usb_set_lpm_timeout(udev, state, 0); in usb_enable_link_state()
4232 hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4238 udev->usb3_lpm_u1_enabled = 1; in usb_enable_link_state()
4240 udev->usb3_lpm_u2_enabled = 1; in usb_enable_link_state()
4257 static int usb_disable_link_state(struct usb_hcd *hcd, struct usb_device *udev, in usb_disable_link_state() argument
4265 dev_warn(&udev->dev, "%s: Can't disable non-U1 or U2 state.\n", in usb_disable_link_state()
4270 if (usb_set_lpm_timeout(udev, state, 0)) in usb_disable_link_state()
4273 usb_set_device_initiated_lpm(udev, state, false); in usb_disable_link_state()
4275 if (hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state)) in usb_disable_link_state()
4276 dev_warn(&udev->dev, "Could not disable xHCI %s timeout, " in usb_disable_link_state()
4287 udev->usb3_lpm_u1_enabled = 0; in usb_disable_link_state()
4289 udev->usb3_lpm_u2_enabled = 0; in usb_disable_link_state()
4301 int usb_disable_lpm(struct usb_device *udev) in usb_disable_lpm() argument
4305 if (!udev || !udev->parent || in usb_disable_lpm()
4306 udev->speed < USB_SPEED_SUPER || in usb_disable_lpm()
4307 !udev->lpm_capable || in usb_disable_lpm()
4308 udev->state < USB_STATE_CONFIGURED) in usb_disable_lpm()
4311 hcd = bus_to_hcd(udev->bus); in usb_disable_lpm()
4315 udev->lpm_disable_count++; in usb_disable_lpm()
4316 if ((udev->u1_params.timeout == 0 && udev->u2_params.timeout == 0)) in usb_disable_lpm()
4320 if (usb_disable_link_state(hcd, udev, USB3_LPM_U1)) in usb_disable_lpm()
4322 if (usb_disable_link_state(hcd, udev, USB3_LPM_U2)) in usb_disable_lpm()
4328 usb_enable_lpm(udev); in usb_disable_lpm()
4334 int usb_unlocked_disable_lpm(struct usb_device *udev) in usb_unlocked_disable_lpm() argument
4336 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_unlocked_disable_lpm()
4343 ret = usb_disable_lpm(udev); in usb_unlocked_disable_lpm()
4358 void usb_enable_lpm(struct usb_device *udev) in usb_enable_lpm() argument
4364 if (!udev || !udev->parent || in usb_enable_lpm()
4365 udev->speed < USB_SPEED_SUPER || in usb_enable_lpm()
4366 !udev->lpm_capable || in usb_enable_lpm()
4367 udev->state < USB_STATE_CONFIGURED) in usb_enable_lpm()
4370 udev->lpm_disable_count--; in usb_enable_lpm()
4371 hcd = bus_to_hcd(udev->bus); in usb_enable_lpm()
4379 if (udev->lpm_disable_count > 0) in usb_enable_lpm()
4382 hub = usb_hub_to_struct_hub(udev->parent); in usb_enable_lpm()
4386 port_dev = hub->ports[udev->portnum - 1]; in usb_enable_lpm()
4389 usb_enable_link_state(hcd, udev, USB3_LPM_U1); in usb_enable_lpm()
4392 usb_enable_link_state(hcd, udev, USB3_LPM_U2); in usb_enable_lpm()
4397 void usb_unlocked_enable_lpm(struct usb_device *udev) in usb_unlocked_enable_lpm() argument
4399 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_unlocked_enable_lpm()
4405 usb_enable_lpm(udev); in usb_unlocked_enable_lpm()
4414 struct usb_device *udev = port_dev->child; in hub_usb3_port_prepare_disable() local
4417 if (udev && udev->port_is_suspended && udev->do_remote_wakeup) { in hub_usb3_port_prepare_disable()
4422 ret = usb_disable_remote_wakeup(udev); in hub_usb3_port_prepare_disable()
4425 dev_warn(&udev->dev, in hub_usb3_port_prepare_disable()
4427 udev->do_remote_wakeup = 0; in hub_usb3_port_prepare_disable()
4440 int usb_disable_lpm(struct usb_device *udev) in usb_disable_lpm() argument
4446 void usb_enable_lpm(struct usb_device *udev) { } in usb_enable_lpm() argument
4449 int usb_unlocked_disable_lpm(struct usb_device *udev) in usb_unlocked_disable_lpm() argument
4455 void usb_unlocked_enable_lpm(struct usb_device *udev) { } in usb_unlocked_enable_lpm() argument
4458 int usb_disable_ltm(struct usb_device *udev) in usb_disable_ltm() argument
4464 void usb_enable_ltm(struct usb_device *udev) { } in usb_enable_ltm() argument
4473 static int usb_req_set_sel(struct usb_device *udev) in usb_req_set_sel() argument
4515 int usb_port_disable(struct usb_device *udev) in usb_port_disable() argument
4517 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_disable()
4519 return hub_port_disable(hub, udev->portnum, 0); in usb_port_disable()
4580 void usb_ep0_reinit(struct usb_device *udev) in usb_ep0_reinit() argument
4582 usb_disable_endpoint(udev, 0 + USB_DIR_IN, true); in usb_ep0_reinit()
4583 usb_disable_endpoint(udev, 0 + USB_DIR_OUT, true); in usb_ep0_reinit()
4584 usb_enable_endpoint(udev, &udev->ep0, true); in usb_ep0_reinit()
4591 static int hub_set_address(struct usb_device *udev, int devnum) in hub_set_address() argument
4594 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_set_address()
4602 if (udev->state == USB_STATE_ADDRESS) in hub_set_address()
4604 if (udev->state != USB_STATE_DEFAULT) in hub_set_address()
4607 retval = hcd->driver->address_device(hcd, udev); in hub_set_address()
4609 retval = usb_control_msg(udev, usb_sndaddr0pipe(), in hub_set_address()
4613 update_devnum(udev, devnum); in hub_set_address()
4615 usb_set_device_state(udev, USB_STATE_ADDRESS); in hub_set_address()
4616 usb_ep0_reinit(udev); in hub_set_address()
4630 static void hub_set_initial_usb2_lpm_policy(struct usb_device *udev) in hub_set_initial_usb2_lpm_policy() argument
4632 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in hub_set_initial_usb2_lpm_policy()
4635 if (!udev->usb2_hw_lpm_capable || !udev->bos) in hub_set_initial_usb2_lpm_policy()
4639 connect_type = hub->ports[udev->portnum - 1]->connect_type; in hub_set_initial_usb2_lpm_policy()
4641 if ((udev->bos->ext_cap->bmAttributes & cpu_to_le32(USB_BESL_SUPPORT)) || in hub_set_initial_usb2_lpm_policy()
4643 udev->usb2_hw_lpm_allowed = 1; in hub_set_initial_usb2_lpm_policy()
4644 usb_enable_usb2_hardware_lpm(udev); in hub_set_initial_usb2_lpm_policy()
4648 static int hub_enable_device(struct usb_device *udev) in hub_enable_device() argument
4650 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_enable_device()
4654 if (udev->state == USB_STATE_ADDRESS) in hub_enable_device()
4656 if (udev->state != USB_STATE_DEFAULT) in hub_enable_device()
4659 return hcd->driver->enable_device(hcd, udev); in hub_enable_device()
4673 hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, in hub_port_init() argument
4681 enum usb_device_speed oldspeed = udev->speed; in hub_port_init()
4683 int devnum = udev->devnum; in hub_port_init()
4703 retval = hub_port_reset(hub, port1, udev, delay, false); in hub_port_init()
4711 if (oldspeed != USB_SPEED_UNKNOWN && oldspeed != udev->speed && in hub_port_init()
4712 !(oldspeed == USB_SPEED_SUPER && udev->speed > oldspeed)) { in hub_port_init()
4713 dev_dbg(&udev->dev, "device reset changed speed!\n"); in hub_port_init()
4716 oldspeed = udev->speed; in hub_port_init()
4723 switch (udev->speed) { in hub_port_init()
4727 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(512); in hub_port_init()
4730 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(64); in hub_port_init()
4737 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(64); in hub_port_init()
4740 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(8); in hub_port_init()
4746 if (udev->speed == USB_SPEED_WIRELESS) in hub_port_init()
4749 speed = usb_speed_string(udev->speed); in hub_port_init()
4758 if (udev->bus->controller->driver) in hub_port_init()
4759 driver_name = udev->bus->controller->driver->name; in hub_port_init()
4761 driver_name = udev->bus->sysdev->driver->name; in hub_port_init()
4763 if (udev->speed < USB_SPEED_SUPER) in hub_port_init()
4764 dev_info(&udev->dev, in hub_port_init()
4766 (udev->config) ? "reset" : "new", speed, in hub_port_init()
4771 udev->tt = hdev->tt; in hub_port_init()
4772 udev->ttport = hdev->ttport; in hub_port_init()
4773 } else if (udev->speed != USB_SPEED_HIGH in hub_port_init()
4776 dev_err(&udev->dev, "parent hub has no TT\n"); in hub_port_init()
4780 udev->tt = &hub->tt; in hub_port_init()
4781 udev->ttport = port1; in hub_port_init()
4796 do_new_scheme = use_new_scheme(udev, retry_counter, port_dev); in hub_port_init()
4803 retval = hub_enable_device(udev); in hub_port_init()
4805 dev_err(&udev->dev, in hub_port_init()
4825 r = usb_control_msg(udev, usb_rcvaddr0pipe(), in hub_port_init()
4851 udev->speed > USB_SPEED_FULL)) in hub_port_init()
4854 udev->descriptor.bMaxPacketSize0 = in hub_port_init()
4858 retval = hub_port_reset(hub, port1, udev, delay, false); in hub_port_init()
4861 if (oldspeed != udev->speed) { in hub_port_init()
4862 dev_dbg(&udev->dev, in hub_port_init()
4869 dev_err(&udev->dev, "device descriptor read/64, error %d\n", in hub_port_init()
4882 if (udev->wusb == 0) { in hub_port_init()
4884 retval = hub_set_address(udev, devnum); in hub_port_init()
4891 dev_err(&udev->dev, "device not accepting address %d, error %d\n", in hub_port_init()
4895 if (udev->speed >= USB_SPEED_SUPER) { in hub_port_init()
4896 devnum = udev->devnum; in hub_port_init()
4897 dev_info(&udev->dev, in hub_port_init()
4899 (udev->config) ? "reset" : "new", in hub_port_init()
4900 (udev->speed == USB_SPEED_SUPER_PLUS) ? in hub_port_init()
4902 (udev->ssp_rate == USB_SSP_GEN_2x2) ? in hub_port_init()
4904 (udev->ssp_rate == USB_SSP_GEN_2x1) ? in hub_port_init()
4906 (udev->ssp_rate == USB_SSP_GEN_1x2) ? in hub_port_init()
4920 retval = usb_get_device_descriptor(udev, 8); in hub_port_init()
4923 dev_err(&udev->dev, in hub_port_init()
4933 delay = udev->parent->hub_delay; in hub_port_init()
4934 udev->hub_delay = min_t(u32, delay, in hub_port_init()
4936 retval = usb_set_isoch_delay(udev); in hub_port_init()
4938 dev_dbg(&udev->dev, in hub_port_init()
4955 if ((udev->speed >= USB_SPEED_SUPER) && in hub_port_init()
4956 (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0300)) { in hub_port_init()
4957 dev_err(&udev->dev, "got a wrong device descriptor, " in hub_port_init()
4959 hub_port_reset(hub, port1, udev, in hub_port_init()
4965 if (udev->descriptor.bMaxPacketSize0 == 0xff || in hub_port_init()
4966 udev->speed >= USB_SPEED_SUPER) in hub_port_init()
4969 i = udev->descriptor.bMaxPacketSize0; in hub_port_init()
4970 if (usb_endpoint_maxp(&udev->ep0.desc) != i) { in hub_port_init()
4971 if (udev->speed == USB_SPEED_LOW || in hub_port_init()
4973 dev_err(&udev->dev, "Invalid ep0 maxpacket: %d\n", i); in hub_port_init()
4977 if (udev->speed == USB_SPEED_FULL) in hub_port_init()
4978 dev_dbg(&udev->dev, "ep0 maxpacket = %d\n", i); in hub_port_init()
4980 dev_warn(&udev->dev, "Using ep0 maxpacket: %d\n", i); in hub_port_init()
4981 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(i); in hub_port_init()
4982 usb_ep0_reinit(udev); in hub_port_init()
4985 retval = usb_get_device_descriptor(udev, USB_DT_DEVICE_SIZE); in hub_port_init()
4986 if (retval < (signed)sizeof(udev->descriptor)) { in hub_port_init()
4988 dev_err(&udev->dev, "device descriptor read/all, error %d\n", in hub_port_init()
4995 usb_detect_quirks(udev); in hub_port_init()
4997 if (udev->wusb == 0 && le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0201) { in hub_port_init()
4998 retval = usb_get_bos_descriptor(udev); in hub_port_init()
5000 udev->lpm_capable = usb_device_supports_lpm(udev); in hub_port_init()
5001 udev->lpm_disable_count = 1; in hub_port_init()
5002 usb_set_lpm_parameters(udev); in hub_port_init()
5003 usb_req_set_sel(udev); in hub_port_init()
5010 hcd->driver->update_device(hcd, udev); in hub_port_init()
5011 hub_set_initial_usb2_lpm_policy(udev); in hub_port_init()
5015 update_devnum(udev, devnum); /* for disconnect processing */ in hub_port_init()
5021 check_highspeed(struct usb_hub *hub, struct usb_device *udev, int port1) in check_highspeed() argument
5026 if (udev->quirks & USB_QUIRK_DEVICE_QUALIFIER) in check_highspeed()
5033 status = usb_get_descriptor(udev, USB_DT_DEVICE_QUALIFIER, 0, in check_highspeed()
5036 dev_info(&udev->dev, "not running at top speed; " in check_highspeed()
5061 struct usb_device *udev = port_dev->child; in hub_power_remaining() local
5065 if (!udev) in hub_power_remaining()
5067 if (hub_is_superspeed(udev)) in hub_power_remaining()
5076 if (udev->actconfig) in hub_power_remaining()
5077 delta = usb_get_max_power(udev, udev->actconfig); in hub_power_remaining()
5078 else if (port1 != udev->bus->otg_port || hdev->parent) in hub_power_remaining()
5096 static int descriptors_changed(struct usb_device *udev, in descriptors_changed() argument
5108 if (memcmp(&udev->descriptor, old_device_descriptor, in descriptors_changed()
5112 if ((old_bos && !udev->bos) || (!old_bos && udev->bos)) in descriptors_changed()
5114 if (udev->bos) { in descriptors_changed()
5115 len = le16_to_cpu(udev->bos->desc->wTotalLength); in descriptors_changed()
5118 if (memcmp(udev->bos->desc, old_bos->desc, len)) in descriptors_changed()
5128 if (udev->serial) in descriptors_changed()
5129 serial_len = strlen(udev->serial) + 1; in descriptors_changed()
5132 for (index = 0; index < udev->descriptor.bNumConfigurations; index++) { in descriptors_changed()
5133 old_length = le16_to_cpu(udev->config[index].desc.wTotalLength); in descriptors_changed()
5142 for (index = 0; index < udev->descriptor.bNumConfigurations; index++) { in descriptors_changed()
5143 old_length = le16_to_cpu(udev->config[index].desc.wTotalLength); in descriptors_changed()
5144 length = usb_get_descriptor(udev, USB_DT_CONFIG, index, buf, in descriptors_changed()
5147 dev_dbg(&udev->dev, "config index %d, error %d\n", in descriptors_changed()
5152 if (memcmp(buf, udev->rawdescriptors[index], old_length) in descriptors_changed()
5154 dev_dbg(&udev->dev, "config index %d changed (#%d)\n", in descriptors_changed()
5164 length = usb_string(udev, udev->descriptor.iSerialNumber, in descriptors_changed()
5167 dev_dbg(&udev->dev, "serial string error %d\n", in descriptors_changed()
5170 } else if (memcmp(buf, udev->serial, length) != 0) { in descriptors_changed()
5171 dev_dbg(&udev->dev, "serial string changed\n"); in descriptors_changed()
5189 struct usb_device *udev = port_dev->child; in hub_port_connect() local
5194 if (udev) { in hub_port_connect()
5196 usb_phy_notify_disconnect(hcd->usb_phy, udev->speed); in hub_port_connect()
5255 udev = usb_alloc_dev(hdev, hdev->bus, port1); in hub_port_connect()
5256 if (!udev) { in hub_port_connect()
5264 usb_set_device_state(udev, USB_STATE_POWERED); in hub_port_connect()
5265 udev->bus_mA = hub->mA_per_port; in hub_port_connect()
5266 udev->level = hdev->level + 1; in hub_port_connect()
5267 udev->wusb = hub_is_wusb(hub); in hub_port_connect()
5271 udev->speed = USB_SPEED_SUPER; in hub_port_connect()
5273 udev->speed = USB_SPEED_UNKNOWN; in hub_port_connect()
5275 choose_devnum(udev); in hub_port_connect()
5276 if (udev->devnum <= 0) { in hub_port_connect()
5282 status = hub_port_init(hub, udev, port1, i); in hub_port_connect()
5290 if (udev->quirks & USB_QUIRK_DELAY_INIT) in hub_port_connect()
5299 if (udev->descriptor.bDeviceClass == USB_CLASS_HUB in hub_port_connect()
5300 && udev->bus_mA <= unit_load) { in hub_port_connect()
5303 status = usb_get_std_status(udev, USB_RECIP_DEVICE, 0, in hub_port_connect()
5306 dev_dbg(&udev->dev, "get status %d ?\n", status); in hub_port_connect()
5310 dev_err(&udev->dev, in hub_port_connect()
5326 if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0200 in hub_port_connect()
5327 && udev->speed == USB_SPEED_FULL in hub_port_connect()
5329 check_highspeed(hub, udev, port1); in hub_port_connect()
5347 port_dev->child = udev; in hub_port_connect()
5353 status = usb_new_device(udev); in hub_port_connect()
5363 udev->speed); in hub_port_connect()
5379 usb_ep0_reinit(udev); in hub_port_connect()
5380 release_devnum(udev); in hub_port_connect()
5381 hub_free_dev(udev); in hub_port_connect()
5386 usb_put_dev(udev); in hub_port_connect()
5428 struct usb_device *udev = port_dev->child; in hub_port_connect_change() local
5449 if ((portstatus & USB_PORT_STAT_CONNECTION) && udev && in hub_port_connect_change()
5450 udev->state != USB_STATE_NOTATTACHED) { in hub_port_connect_change()
5458 descriptor = udev->descriptor; in hub_port_connect_change()
5459 retval = usb_get_device_descriptor(udev, in hub_port_connect_change()
5460 sizeof(udev->descriptor)); in hub_port_connect_change()
5462 dev_dbg(&udev->dev, in hub_port_connect_change()
5466 if (descriptors_changed(udev, &descriptor, in hub_port_connect_change()
5467 udev->bos)) { in hub_port_connect_change()
5468 dev_dbg(&udev->dev, in hub_port_connect_change()
5471 udev->descriptor = descriptor; in hub_port_connect_change()
5477 } else if (udev->state == USB_STATE_SUSPENDED && in hub_port_connect_change()
5478 udev->persist_enabled) { in hub_port_connect_change()
5483 status = usb_remote_wakeup(udev); in hub_port_connect_change()
5541 struct usb_device *udev = port_dev->child; in port_event() local
5570 && !connect_change && udev) { in port_event()
5627 if ((i++ < DETECT_DISCONNECT_TRIES) && udev) { in port_event()
5634 } else if (!udev || !(portstatus & USB_PORT_STAT_CONNECTION) in port_event()
5635 || udev->state == USB_STATE_NOTATTACHED) { in port_event()
5643 usb_lock_device(udev); in port_event()
5644 usb_reset_device(udev); in port_event()
5645 usb_unlock_device(udev); in port_event()
5897 static int usb_reset_and_verify_device(struct usb_device *udev) in usb_reset_and_verify_device() argument
5899 struct usb_device *parent_hdev = udev->parent; in usb_reset_and_verify_device()
5901 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_reset_and_verify_device()
5902 struct usb_device_descriptor descriptor = udev->descriptor; in usb_reset_and_verify_device()
5905 int port1 = udev->portnum; in usb_reset_and_verify_device()
5907 if (udev->state == USB_STATE_NOTATTACHED || in usb_reset_and_verify_device()
5908 udev->state == USB_STATE_SUSPENDED) { in usb_reset_and_verify_device()
5909 dev_dbg(&udev->dev, "device reset not allowed in state %d\n", in usb_reset_and_verify_device()
5910 udev->state); in usb_reset_and_verify_device()
5922 usb_disable_usb2_hardware_lpm(udev); in usb_reset_and_verify_device()
5924 bos = udev->bos; in usb_reset_and_verify_device()
5925 udev->bos = NULL; in usb_reset_and_verify_device()
5933 usb_ep0_reinit(udev); in usb_reset_and_verify_device()
5934 ret = hub_port_init(parent_hub, udev, port1, i); in usb_reset_and_verify_device()
5944 if (descriptors_changed(udev, &descriptor, bos)) { in usb_reset_and_verify_device()
5945 dev_info(&udev->dev, "device firmware changed\n"); in usb_reset_and_verify_device()
5946 udev->descriptor = descriptor; /* for disconnect() calls */ in usb_reset_and_verify_device()
5951 if (!udev->actconfig) in usb_reset_and_verify_device()
5955 ret = usb_hcd_alloc_bandwidth(udev, udev->actconfig, NULL, NULL); in usb_reset_and_verify_device()
5957 dev_warn(&udev->dev, in usb_reset_and_verify_device()
5963 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_reset_and_verify_device()
5965 udev->actconfig->desc.bConfigurationValue, 0, in usb_reset_and_verify_device()
5968 dev_err(&udev->dev, in usb_reset_and_verify_device()
5970 udev->actconfig->desc.bConfigurationValue, ret); in usb_reset_and_verify_device()
5975 usb_set_device_state(udev, USB_STATE_CONFIGURED); in usb_reset_and_verify_device()
5983 for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { in usb_reset_and_verify_device()
5984 struct usb_host_config *config = udev->actconfig; in usb_reset_and_verify_device()
5990 usb_disable_interface(udev, intf, true); in usb_reset_and_verify_device()
5991 usb_enable_interface(udev, intf, true); in usb_reset_and_verify_device()
5999 ret = usb_set_interface(udev, desc->bInterfaceNumber, in usb_reset_and_verify_device()
6004 dev_err(&udev->dev, "failed to restore interface %d " in usb_reset_and_verify_device()
6018 usb_enable_usb2_hardware_lpm(udev); in usb_reset_and_verify_device()
6019 usb_unlocked_enable_lpm(udev); in usb_reset_and_verify_device()
6020 usb_enable_ltm(udev); in usb_reset_and_verify_device()
6021 usb_release_bos_descriptor(udev); in usb_reset_and_verify_device()
6022 udev->bos = bos; in usb_reset_and_verify_device()
6026 usb_release_bos_descriptor(udev); in usb_reset_and_verify_device()
6027 udev->bos = bos; in usb_reset_and_verify_device()
6058 int usb_reset_device(struct usb_device *udev) in usb_reset_device() argument
6064 struct usb_host_config *config = udev->actconfig; in usb_reset_device()
6065 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_reset_device()
6067 if (udev->state == USB_STATE_NOTATTACHED) { in usb_reset_device()
6068 dev_dbg(&udev->dev, "device reset not allowed in state %d\n", in usb_reset_device()
6069 udev->state); in usb_reset_device()
6073 if (!udev->parent) { in usb_reset_device()
6075 dev_dbg(&udev->dev, "%s for root hub!\n", __func__); in usb_reset_device()
6079 if (udev->reset_in_progress) in usb_reset_device()
6081 udev->reset_in_progress = 1; in usb_reset_device()
6083 port_dev = hub->ports[udev->portnum - 1]; in usb_reset_device()
6097 usb_autoresume_device(udev); in usb_reset_device()
6119 ret = usb_reset_and_verify_device(udev); in usb_reset_device()
6142 usb_unbind_and_rebind_marked_interfaces(udev); in usb_reset_device()
6145 usb_autosuspend_device(udev); in usb_reset_device()
6147 udev->reset_in_progress = 0; in usb_reset_device()