Lines Matching refs:udev
132 static int usb_reset_and_verify_device(struct usb_device *udev);
159 int usb_device_supports_lpm(struct usb_device *udev) in usb_device_supports_lpm() argument
162 if (udev->quirks & USB_QUIRK_NO_LPM) in usb_device_supports_lpm()
166 if (!udev->bos) in usb_device_supports_lpm()
172 if (udev->speed == USB_SPEED_HIGH || udev->speed == USB_SPEED_FULL) { in usb_device_supports_lpm()
173 if (udev->bos->ext_cap && in usb_device_supports_lpm()
175 le32_to_cpu(udev->bos->ext_cap->bmAttributes))) in usb_device_supports_lpm()
185 if (!udev->bos->ss_cap) { in usb_device_supports_lpm()
186 dev_info(&udev->dev, "No LPM exit latency info found, disabling LPM.\n"); in usb_device_supports_lpm()
190 if (udev->bos->ss_cap->bU1devExitLat == 0 && in usb_device_supports_lpm()
191 udev->bos->ss_cap->bU2DevExitLat == 0) { in usb_device_supports_lpm()
192 if (udev->parent) in usb_device_supports_lpm()
193 dev_info(&udev->dev, "LPM exit latency is zeroed, disabling LPM.\n"); in usb_device_supports_lpm()
195 dev_info(&udev->dev, "We don't know the algorithms for LPM for this host, disabling LPM.\n"); in usb_device_supports_lpm()
199 if (!udev->parent || udev->parent->lpm_capable) in usb_device_supports_lpm()
209 static void usb_set_lpm_mel(struct usb_device *udev, in usb_set_lpm_mel() argument
256 static void usb_set_lpm_pel(struct usb_device *udev, in usb_set_lpm_pel() argument
310 static void usb_set_lpm_sel(struct usb_device *udev, in usb_set_lpm_sel() argument
320 for (parent = udev->parent, num_hubs = 0; parent->parent; in usb_set_lpm_sel()
333 static void usb_set_lpm_parameters(struct usb_device *udev) in usb_set_lpm_parameters() argument
342 if (!udev->lpm_capable || udev->speed < USB_SPEED_SUPER) in usb_set_lpm_parameters()
346 if (!udev->bos) in usb_set_lpm_parameters()
349 hub = usb_hub_to_struct_hub(udev->parent); in usb_set_lpm_parameters()
356 udev_u1_del = udev->bos->ss_cap->bU1devExitLat; in usb_set_lpm_parameters()
357 udev_u2_del = le16_to_cpu(udev->bos->ss_cap->bU2DevExitLat); in usb_set_lpm_parameters()
358 hub_u1_del = udev->parent->bos->ss_cap->bU1devExitLat; in usb_set_lpm_parameters()
359 hub_u2_del = le16_to_cpu(udev->parent->bos->ss_cap->bU2DevExitLat); in usb_set_lpm_parameters()
361 usb_set_lpm_mel(udev, &udev->u1_params, udev_u1_del, in usb_set_lpm_parameters()
362 hub, &udev->parent->u1_params, hub_u1_del); in usb_set_lpm_parameters()
364 usb_set_lpm_mel(udev, &udev->u2_params, udev_u2_del, in usb_set_lpm_parameters()
365 hub, &udev->parent->u2_params, hub_u2_del); in usb_set_lpm_parameters()
386 usb_set_lpm_pel(udev, &udev->u1_params, udev_u1_del, in usb_set_lpm_parameters()
387 hub, &udev->parent->u1_params, hub_u1_del, in usb_set_lpm_parameters()
395 usb_set_lpm_pel(udev, &udev->u2_params, udev_u2_del, in usb_set_lpm_parameters()
396 hub, &udev->parent->u2_params, hub_u2_del, in usb_set_lpm_parameters()
400 usb_set_lpm_sel(udev, &udev->u1_params); in usb_set_lpm_parameters()
401 usb_set_lpm_sel(udev, &udev->u2_params); in usb_set_lpm_parameters()
890 struct usb_device *udev = urb->dev; in usb_hub_clear_tt_buffer() local
892 struct usb_tt *tt = udev->tt; in usb_hub_clear_tt_buffer()
902 dev_err(&udev->dev, "can't save CLEAR_TT_BUFFER state\n"); in usb_hub_clear_tt_buffer()
908 clear->tt = tt->multi ? udev->ttport : 1; in usb_hub_clear_tt_buffer()
910 clear->devinfo |= ((u16)udev->devaddr) << 4; in usb_hub_clear_tt_buffer()
918 clear->hcd = bus_to_hcd(udev->bus); in usb_hub_clear_tt_buffer()
1018 int usb_remove_device(struct usb_device *udev) in usb_remove_device() argument
1024 if (!udev->parent) /* Can't remove a root hub */ in usb_remove_device()
1026 hub = usb_hub_to_struct_hub(udev->parent); in usb_remove_device()
1033 set_bit(udev->portnum, hub->removed_bits); in usb_remove_device()
1034 hub_port_logical_disconnect(hub, udev->portnum); in usb_remove_device()
1148 struct usb_device *udev = port_dev->child; in hub_activate() local
1156 if (udev || (portstatus & USB_PORT_STAT_CONNECTION)) in hub_activate()
1169 !udev || in hub_activate()
1170 udev->state == USB_STATE_NOTATTACHED)) { in hub_activate()
1227 if (!udev || udev->state == USB_STATE_NOTATTACHED) { in hub_activate()
1234 if (udev || (portstatus & USB_PORT_STAT_CONNECTION) || in hub_activate()
1256 } else if (udev->persist_enabled) { in hub_activate()
1258 udev->reset_resume = 1; in hub_activate()
1268 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in hub_activate()
2048 bool usb_device_is_owned(struct usb_device *udev) in usb_device_is_owned() argument
2052 if (udev->state == USB_STATE_NOTATTACHED || !udev->parent) in usb_device_is_owned()
2054 hub = usb_hub_to_struct_hub(udev->parent); in usb_device_is_owned()
2055 return !!hub->ports[udev->portnum - 1]->port_owner; in usb_device_is_owned()
2058 static void update_port_device_state(struct usb_device *udev) in update_port_device_state() argument
2063 if (udev->parent) { in update_port_device_state()
2064 hub = usb_hub_to_struct_hub(udev->parent); in update_port_device_state()
2074 port_dev = hub->ports[udev->portnum - 1]; in update_port_device_state()
2075 WRITE_ONCE(port_dev->state, udev->state); in update_port_device_state()
2081 static void recursively_mark_NOTATTACHED(struct usb_device *udev) in recursively_mark_NOTATTACHED() argument
2083 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in recursively_mark_NOTATTACHED()
2086 for (i = 0; i < udev->maxchild; ++i) { in recursively_mark_NOTATTACHED()
2090 if (udev->state == USB_STATE_SUSPENDED) in recursively_mark_NOTATTACHED()
2091 udev->active_duration -= jiffies; in recursively_mark_NOTATTACHED()
2092 udev->state = USB_STATE_NOTATTACHED; in recursively_mark_NOTATTACHED()
2093 update_port_device_state(udev); in recursively_mark_NOTATTACHED()
2117 void usb_set_device_state(struct usb_device *udev, in usb_set_device_state() argument
2124 if (udev->state == USB_STATE_NOTATTACHED) in usb_set_device_state()
2131 if (udev->parent) { in usb_set_device_state()
2132 if (udev->state == USB_STATE_SUSPENDED in usb_set_device_state()
2136 wakeup = (udev->quirks & in usb_set_device_state()
2138 udev->actconfig->desc.bmAttributes & in usb_set_device_state()
2143 if (udev->state == USB_STATE_SUSPENDED && in usb_set_device_state()
2145 udev->active_duration -= jiffies; in usb_set_device_state()
2147 udev->state != USB_STATE_SUSPENDED) in usb_set_device_state()
2148 udev->active_duration += jiffies; in usb_set_device_state()
2149 udev->state = new_state; in usb_set_device_state()
2150 update_port_device_state(udev); in usb_set_device_state()
2152 recursively_mark_NOTATTACHED(udev); in usb_set_device_state()
2155 device_set_wakeup_capable(&udev->dev, wakeup); in usb_set_device_state()
2172 static void choose_devnum(struct usb_device *udev) in choose_devnum() argument
2175 struct usb_bus *bus = udev->bus; in choose_devnum()
2188 udev->devnum = devnum; in choose_devnum()
2193 static void release_devnum(struct usb_device *udev) in release_devnum() argument
2195 if (udev->devnum > 0) { in release_devnum()
2196 clear_bit(udev->devnum, udev->bus->devmap.devicemap); in release_devnum()
2197 udev->devnum = -1; in release_devnum()
2201 static void update_devnum(struct usb_device *udev, int devnum) in update_devnum() argument
2203 udev->devnum = devnum; in update_devnum()
2204 if (!udev->devaddr) in update_devnum()
2205 udev->devaddr = (u8)devnum; in update_devnum()
2208 static void hub_free_dev(struct usb_device *udev) in hub_free_dev() argument
2210 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_free_dev()
2213 if (hcd->driver->free_dev && udev->parent) in hub_free_dev()
2214 hcd->driver->free_dev(hcd, udev); in hub_free_dev()
2217 static void hub_disconnect_children(struct usb_device *udev) in hub_disconnect_children() argument
2219 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in hub_disconnect_children()
2223 for (i = 0; i < udev->maxchild; i++) { in hub_disconnect_children()
2249 struct usb_device *udev = *pdev; in usb_disconnect() local
2257 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in usb_disconnect()
2258 dev_info(&udev->dev, "USB disconnect, device number %d\n", in usb_disconnect()
2259 udev->devnum); in usb_disconnect()
2265 pm_runtime_barrier(&udev->dev); in usb_disconnect()
2267 usb_lock_device(udev); in usb_disconnect()
2269 hub_disconnect_children(udev); in usb_disconnect()
2275 dev_dbg(&udev->dev, "unregistering device\n"); in usb_disconnect()
2276 usb_disable_device(udev, 0); in usb_disconnect()
2277 usb_hcd_synchronize_unlinks(udev); in usb_disconnect()
2279 if (udev->parent) { in usb_disconnect()
2280 port1 = udev->portnum; in usb_disconnect()
2281 hub = usb_hub_to_struct_hub(udev->parent); in usb_disconnect()
2284 sysfs_remove_link(&udev->dev.kobj, "port"); in usb_disconnect()
2295 usb_remove_ep_devs(&udev->ep0); in usb_disconnect()
2296 usb_unlock_device(udev); in usb_disconnect()
2302 device_del(&udev->dev); in usb_disconnect()
2307 release_devnum(udev); in usb_disconnect()
2317 hub_free_dev(udev); in usb_disconnect()
2319 put_device(&udev->dev); in usb_disconnect()
2323 static void show_string(struct usb_device *udev, char *id, char *string) in show_string() argument
2327 dev_info(&udev->dev, "%s: %s\n", id, string); in show_string()
2330 static void announce_device(struct usb_device *udev) in announce_device() argument
2332 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); in announce_device()
2334 dev_info(&udev->dev, in announce_device()
2336 le16_to_cpu(udev->descriptor.idVendor), in announce_device()
2337 le16_to_cpu(udev->descriptor.idProduct), in announce_device()
2339 dev_info(&udev->dev, in announce_device()
2341 udev->descriptor.iManufacturer, in announce_device()
2342 udev->descriptor.iProduct, in announce_device()
2343 udev->descriptor.iSerialNumber); in announce_device()
2344 show_string(udev, "Product", udev->product); in announce_device()
2345 show_string(udev, "Manufacturer", udev->manufacturer); in announce_device()
2346 show_string(udev, "SerialNumber", udev->serial); in announce_device()
2349 static inline void announce_device(struct usb_device *udev) { } in announce_device() argument
2361 static int usb_enumerate_device_otg(struct usb_device *udev) in usb_enumerate_device_otg() argument
2371 if (!udev->bus->is_b_host in usb_enumerate_device_otg()
2372 && udev->config in usb_enumerate_device_otg()
2373 && udev->parent == udev->bus->root_hub) { in usb_enumerate_device_otg()
2375 struct usb_bus *bus = udev->bus; in usb_enumerate_device_otg()
2376 unsigned port1 = udev->portnum; in usb_enumerate_device_otg()
2379 err = __usb_get_extra_descriptor(udev->rawdescriptors[0], in usb_enumerate_device_otg()
2380 le16_to_cpu(udev->config[0].desc.wTotalLength), in usb_enumerate_device_otg()
2385 dev_info(&udev->dev, "Dual-Role OTG device on %sHNP port\n", in usb_enumerate_device_otg()
2391 err = usb_control_msg(udev, in usb_enumerate_device_otg()
2392 usb_sndctrlpipe(udev, 0), in usb_enumerate_device_otg()
2402 dev_err(&udev->dev, "can't set HNP mode: %d\n", in usb_enumerate_device_otg()
2416 err = usb_control_msg(udev, in usb_enumerate_device_otg()
2417 usb_sndctrlpipe(udev, 0), in usb_enumerate_device_otg()
2423 dev_err(&udev->dev, in usb_enumerate_device_otg()
2447 static int usb_enumerate_device(struct usb_device *udev) in usb_enumerate_device() argument
2450 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_enumerate_device()
2452 if (udev->config == NULL) { in usb_enumerate_device()
2453 err = usb_get_configuration(udev); in usb_enumerate_device()
2456 dev_err(&udev->dev, "can't read configurations, error %d\n", in usb_enumerate_device()
2463 udev->product = usb_cache_string(udev, udev->descriptor.iProduct); in usb_enumerate_device()
2464 udev->manufacturer = usb_cache_string(udev, in usb_enumerate_device()
2465 udev->descriptor.iManufacturer); in usb_enumerate_device()
2466 udev->serial = usb_cache_string(udev, udev->descriptor.iSerialNumber); in usb_enumerate_device()
2468 err = usb_enumerate_device_otg(udev); in usb_enumerate_device()
2473 !is_targeted(udev)) { in usb_enumerate_device()
2477 if (IS_ENABLED(CONFIG_USB_OTG) && (udev->bus->b_hnp_enable in usb_enumerate_device()
2478 || udev->bus->is_b_host)) { in usb_enumerate_device()
2479 err = usb_port_suspend(udev, PMSG_AUTO_SUSPEND); in usb_enumerate_device()
2481 dev_dbg(&udev->dev, "HNP fail, %d\n", err); in usb_enumerate_device()
2486 usb_detect_interface_quirks(udev); in usb_enumerate_device()
2491 static void set_usb_port_removable(struct usb_device *udev) in set_usb_port_removable() argument
2493 struct usb_device *hdev = udev->parent; in set_usb_port_removable()
2495 u8 port = udev->portnum; in set_usb_port_removable()
2499 dev_set_removable(&udev->dev, DEVICE_REMOVABLE_UNKNOWN); in set_usb_port_removable()
2504 hub = usb_hub_to_struct_hub(udev->parent); in set_usb_port_removable()
2510 switch (hub->ports[udev->portnum - 1]->connect_type) { in set_usb_port_removable()
2512 dev_set_removable(&udev->dev, DEVICE_REMOVABLE); in set_usb_port_removable()
2516 dev_set_removable(&udev->dev, DEVICE_FIXED); in set_usb_port_removable()
2541 dev_set_removable(&udev->dev, DEVICE_REMOVABLE); in set_usb_port_removable()
2543 dev_set_removable(&udev->dev, DEVICE_FIXED); in set_usb_port_removable()
2568 int usb_new_device(struct usb_device *udev) in usb_new_device() argument
2572 if (udev->parent) { in usb_new_device()
2577 device_init_wakeup(&udev->dev, 0); in usb_new_device()
2581 pm_runtime_set_active(&udev->dev); in usb_new_device()
2582 pm_runtime_get_noresume(&udev->dev); in usb_new_device()
2583 pm_runtime_use_autosuspend(&udev->dev); in usb_new_device()
2584 pm_runtime_enable(&udev->dev); in usb_new_device()
2589 usb_disable_autosuspend(udev); in usb_new_device()
2591 err = usb_enumerate_device(udev); /* Read descriptors */ in usb_new_device()
2594 dev_dbg(&udev->dev, "udev %d, busnum %d, minor = %d\n", in usb_new_device()
2595 udev->devnum, udev->bus->busnum, in usb_new_device()
2596 (((udev->bus->busnum-1) * 128) + (udev->devnum-1))); in usb_new_device()
2598 udev->dev.devt = MKDEV(USB_DEVICE_MAJOR, in usb_new_device()
2599 (((udev->bus->busnum-1) * 128) + (udev->devnum-1))); in usb_new_device()
2602 announce_device(udev); in usb_new_device()
2604 if (udev->serial) in usb_new_device()
2605 add_device_randomness(udev->serial, strlen(udev->serial)); in usb_new_device()
2606 if (udev->product) in usb_new_device()
2607 add_device_randomness(udev->product, strlen(udev->product)); in usb_new_device()
2608 if (udev->manufacturer) in usb_new_device()
2609 add_device_randomness(udev->manufacturer, in usb_new_device()
2610 strlen(udev->manufacturer)); in usb_new_device()
2612 device_enable_async_suspend(&udev->dev); in usb_new_device()
2615 set_usb_port_removable(udev); in usb_new_device()
2621 err = device_add(&udev->dev); in usb_new_device()
2623 dev_err(&udev->dev, "can't device_add, error %d\n", err); in usb_new_device()
2628 if (udev->parent) { in usb_new_device()
2629 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_new_device()
2630 int port1 = udev->portnum; in usb_new_device()
2633 err = sysfs_create_link(&udev->dev.kobj, in usb_new_device()
2639 &udev->dev.kobj, "device"); in usb_new_device()
2641 sysfs_remove_link(&udev->dev.kobj, "port"); in usb_new_device()
2649 (void) usb_create_ep_devs(&udev->dev, &udev->ep0, udev); in usb_new_device()
2650 usb_mark_last_busy(udev); in usb_new_device()
2651 pm_runtime_put_sync_autosuspend(&udev->dev); in usb_new_device()
2655 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in usb_new_device()
2656 pm_runtime_disable(&udev->dev); in usb_new_device()
2657 pm_runtime_set_suspended(&udev->dev); in usb_new_device()
2829 static bool use_new_scheme(struct usb_device *udev, int retry, in use_new_scheme() argument
2843 if (udev->speed >= USB_SPEED_SUPER) in use_new_scheme()
2876 struct usb_device *udev, unsigned int delay, bool warm) in hub_port_wait_reset() argument
2945 if (!udev) in hub_port_wait_reset()
2950 udev->rx_lanes = USB_EXT_PORT_RX_LANES(ext_portstatus) + 1; in hub_port_wait_reset()
2951 udev->tx_lanes = USB_EXT_PORT_TX_LANES(ext_portstatus) + 1; in hub_port_wait_reset()
2952 udev->ssp_rate = get_port_ssp_rate(hub->hdev, ext_portstatus); in hub_port_wait_reset()
2954 udev->rx_lanes = 1; in hub_port_wait_reset()
2955 udev->tx_lanes = 1; in hub_port_wait_reset()
2956 udev->ssp_rate = USB_SSP_GEN_UNKNOWN; in hub_port_wait_reset()
2958 if (udev->ssp_rate != USB_SSP_GEN_UNKNOWN) in hub_port_wait_reset()
2959 udev->speed = USB_SPEED_SUPER_PLUS; in hub_port_wait_reset()
2961 udev->speed = USB_SPEED_SUPER; in hub_port_wait_reset()
2963 udev->speed = USB_SPEED_HIGH; in hub_port_wait_reset()
2965 udev->speed = USB_SPEED_LOW; in hub_port_wait_reset()
2967 udev->speed = USB_SPEED_FULL; in hub_port_wait_reset()
2973 struct usb_device *udev, unsigned int delay, bool warm) in hub_port_reset() argument
3015 status = hub_port_wait_reset(hub, port1, udev, delay, in hub_port_reset()
3040 if (udev) in hub_port_reset()
3090 if (udev) { in hub_port_reset()
3091 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_port_reset()
3093 update_devnum(udev, 0); in hub_port_reset()
3098 hcd->driver->reset_device(hcd, udev); in hub_port_reset()
3100 usb_set_device_state(udev, USB_STATE_DEFAULT); in hub_port_reset()
3103 if (udev) in hub_port_reset()
3104 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in hub_port_reset()
3207 static int check_port_resume_type(struct usb_device *udev, in check_port_resume_type() argument
3216 if (status == 0 && udev->reset_resume in check_port_resume_type()
3238 else if (!(portstatus & USB_PORT_STAT_ENABLE) && !udev->reset_resume) { in check_port_resume_type()
3239 if (udev->persist_enabled) in check_port_resume_type()
3240 udev->reset_resume = 1; in check_port_resume_type()
3248 } else if (udev->reset_resume) { in check_port_resume_type()
3271 int usb_disable_ltm(struct usb_device *udev) in usb_disable_ltm() argument
3273 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_disable_ltm()
3277 !usb_device_supports_ltm(udev)) in usb_disable_ltm()
3283 if (!udev->actconfig) in usb_disable_ltm()
3286 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_ltm()
3293 void usb_enable_ltm(struct usb_device *udev) in usb_enable_ltm() argument
3295 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_enable_ltm()
3299 !usb_device_supports_ltm(udev)) in usb_enable_ltm()
3305 if (!udev->actconfig) in usb_enable_ltm()
3308 usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_ltm()
3325 static int usb_enable_remote_wakeup(struct usb_device *udev) in usb_enable_remote_wakeup() argument
3327 if (udev->speed < USB_SPEED_SUPER) in usb_enable_remote_wakeup()
3328 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_remote_wakeup()
3333 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_remote_wakeup()
3351 static int usb_disable_remote_wakeup(struct usb_device *udev) in usb_disable_remote_wakeup() argument
3353 if (udev->speed < USB_SPEED_SUPER) in usb_disable_remote_wakeup()
3354 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_remote_wakeup()
3359 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_remote_wakeup()
3366 unsigned usb_wakeup_enabled_descendants(struct usb_device *udev) in usb_wakeup_enabled_descendants() argument
3368 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in usb_wakeup_enabled_descendants()
3370 return udev->do_remote_wakeup + in usb_wakeup_enabled_descendants()
3423 int usb_port_suspend(struct usb_device *udev, pm_message_t msg) in usb_port_suspend() argument
3425 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_suspend()
3426 struct usb_port *port_dev = hub->ports[udev->portnum - 1]; in usb_port_suspend()
3427 int port1 = udev->portnum; in usb_port_suspend()
3439 if (udev->do_remote_wakeup) { in usb_port_suspend()
3440 status = usb_enable_remote_wakeup(udev); in usb_port_suspend()
3442 dev_dbg(&udev->dev, "won't remote wakeup, status %d\n", in usb_port_suspend()
3451 usb_disable_usb2_hardware_lpm(udev); in usb_port_suspend()
3453 if (usb_disable_ltm(udev)) { in usb_port_suspend()
3454 dev_err(&udev->dev, "Failed to disable LTM before suspend\n"); in usb_port_suspend()
3475 else if (PMSG_IS_AUTO(msg) || usb_wakeup_enabled_descendants(udev) > 0) in usb_port_suspend()
3506 usb_enable_ltm(udev); in usb_port_suspend()
3509 usb_enable_usb2_hardware_lpm(udev); in usb_port_suspend()
3511 if (udev->do_remote_wakeup) in usb_port_suspend()
3512 (void) usb_disable_remote_wakeup(udev); in usb_port_suspend()
3520 dev_dbg(&udev->dev, "usb %ssuspend, wakeup %d\n", in usb_port_suspend()
3522 udev->do_remote_wakeup); in usb_port_suspend()
3524 udev->port_is_suspended = 1; in usb_port_suspend()
3529 usb_set_device_state(udev, USB_STATE_SUSPENDED); in usb_port_suspend()
3532 if (status == 0 && !udev->do_remote_wakeup && udev->persist_enabled in usb_port_suspend()
3553 static int finish_port_resume(struct usb_device *udev) in finish_port_resume() argument
3559 dev_dbg(&udev->dev, "%s\n", in finish_port_resume()
3560 udev->reset_resume ? "finish reset-resume" : "finish resume"); in finish_port_resume()
3567 usb_set_device_state(udev, udev->actconfig in finish_port_resume()
3576 if (udev->reset_resume) { in finish_port_resume()
3584 if (udev->quirks & USB_QUIRK_RESET) in finish_port_resume()
3587 status = usb_reset_and_verify_device(udev); in finish_port_resume()
3596 status = usb_get_std_status(udev, USB_RECIP_DEVICE, 0, &devstatus); in finish_port_resume()
3599 if (status && !udev->reset_resume && udev->persist_enabled) { in finish_port_resume()
3600 dev_dbg(&udev->dev, "retry with reset-resume\n"); in finish_port_resume()
3601 udev->reset_resume = 1; in finish_port_resume()
3607 dev_dbg(&udev->dev, "gone after usb resume? status %d\n", in finish_port_resume()
3615 } else if (udev->actconfig && !udev->reset_resume) { in finish_port_resume()
3616 if (udev->speed < USB_SPEED_SUPER) { in finish_port_resume()
3618 status = usb_disable_remote_wakeup(udev); in finish_port_resume()
3620 status = usb_get_std_status(udev, USB_RECIP_INTERFACE, 0, in finish_port_resume()
3624 status = usb_disable_remote_wakeup(udev); in finish_port_resume()
3628 dev_dbg(&udev->dev, in finish_port_resume()
3660 static int wait_for_connected(struct usb_device *udev, in wait_for_connected() argument
3677 dev_dbg(&udev->dev, "Waited %dms for CONNECT\n", delay_ms); in wait_for_connected()
3715 int usb_port_resume(struct usb_device *udev, pm_message_t msg) in usb_port_resume() argument
3717 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_resume()
3718 struct usb_port *port_dev = hub->ports[udev->portnum - 1]; in usb_port_resume()
3719 int port1 = udev->portnum; in usb_port_resume()
3726 dev_dbg(&udev->dev, "can't resume usb port, status %d\n", in usb_port_resume()
3738 pm_wakeup_event(&udev->dev, 0); in usb_port_resume()
3752 dev_dbg(&udev->dev, "usb %sresume\n", in usb_port_resume()
3765 udev->port_is_suspended = 0; in usb_port_resume()
3780 if (udev->persist_enabled) in usb_port_resume()
3781 status = wait_for_connected(udev, hub, port1, &portchange, in usb_port_resume()
3784 status = check_port_resume_type(udev, in usb_port_resume()
3787 status = finish_port_resume(udev); in usb_port_resume()
3789 dev_dbg(&udev->dev, "can't resume, status %d\n", status); in usb_port_resume()
3793 usb_enable_usb2_hardware_lpm(udev); in usb_port_resume()
3796 usb_enable_ltm(udev); in usb_port_resume()
3804 int usb_remote_wakeup(struct usb_device *udev) in usb_remote_wakeup() argument
3808 usb_lock_device(udev); in usb_remote_wakeup()
3809 if (udev->state == USB_STATE_SUSPENDED) { in usb_remote_wakeup()
3810 dev_dbg(&udev->dev, "usb %sresume\n", "wakeup-"); in usb_remote_wakeup()
3811 status = usb_autoresume_device(udev); in usb_remote_wakeup()
3814 usb_autosuspend_device(udev); in usb_remote_wakeup()
3817 usb_unlock_device(udev); in usb_remote_wakeup()
3828 struct usb_device *udev; in hub_handle_remote_wakeup() local
3834 udev = port_dev->child; in hub_handle_remote_wakeup()
3841 if (!udev || udev->state != USB_STATE_SUSPENDED || in hub_handle_remote_wakeup()
3848 if (udev) { in hub_handle_remote_wakeup()
3853 ret = usb_remote_wakeup(udev); in hub_handle_remote_wakeup()
3893 struct usb_device *udev = port_dev->child; in hub_suspend() local
3895 if (udev && udev->can_submit) { in hub_suspend()
3897 dev_name(&udev->dev)); in hub_suspend()
3901 if (udev) in hub_suspend()
3903 usb_wakeup_enabled_descendants(udev); in hub_suspend()
3938 struct usb_device *udev; in report_wakeup_requests() local
3960 udev = hub->ports[i]->child; in report_wakeup_requests()
3961 if (udev) in report_wakeup_requests()
3962 pm_wakeup_event(&udev->dev, 0); in report_wakeup_requests()
4028 static int usb_req_set_sel(struct usb_device *udev) in usb_req_set_sel() argument
4037 if (!udev->parent || udev->speed < USB_SPEED_SUPER || !udev->lpm_capable) in usb_req_set_sel()
4041 u1_sel = DIV_ROUND_UP(udev->u1_params.sel, 1000); in usb_req_set_sel()
4042 u1_pel = DIV_ROUND_UP(udev->u1_params.pel, 1000); in usb_req_set_sel()
4043 u2_sel = DIV_ROUND_UP(udev->u2_params.sel, 1000); in usb_req_set_sel()
4044 u2_pel = DIV_ROUND_UP(udev->u2_params.pel, 1000); in usb_req_set_sel()
4058 dev_dbg(&udev->dev, "Device-initiated U1/U2 disabled due to long SEL or PEL\n"); in usb_req_set_sel()
4076 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_req_set_sel()
4085 udev->lpm_devinit_allow = 1; in usb_req_set_sel()
4093 static int usb_set_device_initiated_lpm(struct usb_device *udev, in usb_set_device_initiated_lpm() argument
4107 dev_warn(&udev->dev, "%s: Can't %s non-U1 or U2 state.\n", in usb_set_device_initiated_lpm()
4112 if (udev->state != USB_STATE_CONFIGURED) { in usb_set_device_initiated_lpm()
4113 dev_dbg(&udev->dev, "%s: Can't %s %s state " in usb_set_device_initiated_lpm()
4125 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_set_device_initiated_lpm()
4132 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_set_device_initiated_lpm()
4140 dev_warn(&udev->dev, "%s of device-initiated %s failed.\n", in usb_set_device_initiated_lpm()
4148 static int usb_set_lpm_timeout(struct usb_device *udev, in usb_set_lpm_timeout() argument
4162 dev_warn(&udev->dev, "%s: Can't set timeout for non-U1 or U2 state.\n", in usb_set_lpm_timeout()
4169 dev_warn(&udev->dev, "Failed to set %s timeout to 0x%x, " in usb_set_lpm_timeout()
4175 ret = set_port_feature(udev->parent, in usb_set_lpm_timeout()
4176 USB_PORT_LPM_TIMEOUT(timeout) | udev->portnum, in usb_set_lpm_timeout()
4179 dev_warn(&udev->dev, "Failed to set %s timeout to 0x%x," in usb_set_lpm_timeout()
4185 udev->u1_params.timeout = timeout; in usb_set_lpm_timeout()
4187 udev->u2_params.timeout = timeout; in usb_set_lpm_timeout()
4196 static bool usb_device_may_initiate_lpm(struct usb_device *udev, in usb_device_may_initiate_lpm() argument
4202 if (!udev->lpm_devinit_allow) in usb_device_may_initiate_lpm()
4206 sel = DIV_ROUND_UP(udev->u1_params.sel, 1000); in usb_device_may_initiate_lpm()
4208 sel = DIV_ROUND_UP(udev->u2_params.sel, 1000); in usb_device_may_initiate_lpm()
4212 for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { in usb_device_may_initiate_lpm()
4217 intf = udev->actconfig->interface[i]; in usb_device_may_initiate_lpm()
4250 static void usb_enable_link_state(struct usb_hcd *hcd, struct usb_device *udev, in usb_enable_link_state() argument
4258 if (!udev->bos) in usb_enable_link_state()
4261 u1_mel = udev->bos->ss_cap->bU1devExitLat; in usb_enable_link_state()
4262 u2_mel = udev->bos->ss_cap->bU2DevExitLat; in usb_enable_link_state()
4277 timeout = hcd->driver->enable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4284 dev_warn(&udev->dev, "Could not enable %s link state, " in usb_enable_link_state()
4290 if (usb_set_lpm_timeout(udev, state, timeout)) { in usb_enable_link_state()
4295 hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4302 if (udev->actconfig && in usb_enable_link_state()
4303 usb_device_may_initiate_lpm(udev, state)) { in usb_enable_link_state()
4304 if (usb_set_device_initiated_lpm(udev, state, true)) { in usb_enable_link_state()
4309 usb_set_lpm_timeout(udev, state, 0); in usb_enable_link_state()
4310 hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4316 udev->usb3_lpm_u1_enabled = 1; in usb_enable_link_state()
4318 udev->usb3_lpm_u2_enabled = 1; in usb_enable_link_state()
4335 static int usb_disable_link_state(struct usb_hcd *hcd, struct usb_device *udev, in usb_disable_link_state() argument
4343 dev_warn(&udev->dev, "%s: Can't disable non-U1 or U2 state.\n", in usb_disable_link_state()
4348 if (usb_set_lpm_timeout(udev, state, 0)) in usb_disable_link_state()
4351 usb_set_device_initiated_lpm(udev, state, false); in usb_disable_link_state()
4353 if (hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state)) in usb_disable_link_state()
4354 dev_warn(&udev->dev, "Could not disable xHCI %s timeout, " in usb_disable_link_state()
4365 udev->usb3_lpm_u1_enabled = 0; in usb_disable_link_state()
4367 udev->usb3_lpm_u2_enabled = 0; in usb_disable_link_state()
4379 int usb_disable_lpm(struct usb_device *udev) in usb_disable_lpm() argument
4383 if (!udev || !udev->parent || in usb_disable_lpm()
4384 udev->speed < USB_SPEED_SUPER || in usb_disable_lpm()
4385 !udev->lpm_capable || in usb_disable_lpm()
4386 udev->state < USB_STATE_CONFIGURED) in usb_disable_lpm()
4389 hcd = bus_to_hcd(udev->bus); in usb_disable_lpm()
4393 udev->lpm_disable_count++; in usb_disable_lpm()
4394 if ((udev->u1_params.timeout == 0 && udev->u2_params.timeout == 0)) in usb_disable_lpm()
4398 if (usb_disable_link_state(hcd, udev, USB3_LPM_U1)) in usb_disable_lpm()
4400 if (usb_disable_link_state(hcd, udev, USB3_LPM_U2)) in usb_disable_lpm()
4406 usb_enable_lpm(udev); in usb_disable_lpm()
4412 int usb_unlocked_disable_lpm(struct usb_device *udev) in usb_unlocked_disable_lpm() argument
4414 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_unlocked_disable_lpm()
4421 ret = usb_disable_lpm(udev); in usb_unlocked_disable_lpm()
4436 void usb_enable_lpm(struct usb_device *udev) in usb_enable_lpm() argument
4442 if (!udev || !udev->parent || in usb_enable_lpm()
4443 udev->speed < USB_SPEED_SUPER || in usb_enable_lpm()
4444 !udev->lpm_capable || in usb_enable_lpm()
4445 udev->state < USB_STATE_CONFIGURED) in usb_enable_lpm()
4448 udev->lpm_disable_count--; in usb_enable_lpm()
4449 hcd = bus_to_hcd(udev->bus); in usb_enable_lpm()
4457 if (udev->lpm_disable_count > 0) in usb_enable_lpm()
4460 hub = usb_hub_to_struct_hub(udev->parent); in usb_enable_lpm()
4464 port_dev = hub->ports[udev->portnum - 1]; in usb_enable_lpm()
4467 usb_enable_link_state(hcd, udev, USB3_LPM_U1); in usb_enable_lpm()
4470 usb_enable_link_state(hcd, udev, USB3_LPM_U2); in usb_enable_lpm()
4475 void usb_unlocked_enable_lpm(struct usb_device *udev) in usb_unlocked_enable_lpm() argument
4477 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_unlocked_enable_lpm()
4483 usb_enable_lpm(udev); in usb_unlocked_enable_lpm()
4492 struct usb_device *udev = port_dev->child; in hub_usb3_port_prepare_disable() local
4495 if (udev && udev->port_is_suspended && udev->do_remote_wakeup) { in hub_usb3_port_prepare_disable()
4500 ret = usb_disable_remote_wakeup(udev); in hub_usb3_port_prepare_disable()
4503 dev_warn(&udev->dev, in hub_usb3_port_prepare_disable()
4505 udev->do_remote_wakeup = 0; in hub_usb3_port_prepare_disable()
4518 int usb_disable_lpm(struct usb_device *udev) in usb_disable_lpm() argument
4524 void usb_enable_lpm(struct usb_device *udev) { } in usb_enable_lpm() argument
4527 int usb_unlocked_disable_lpm(struct usb_device *udev) in usb_unlocked_disable_lpm() argument
4533 void usb_unlocked_enable_lpm(struct usb_device *udev) { } in usb_unlocked_enable_lpm() argument
4536 int usb_disable_ltm(struct usb_device *udev) in usb_disable_ltm() argument
4542 void usb_enable_ltm(struct usb_device *udev) { } in usb_enable_ltm() argument
4551 static int usb_req_set_sel(struct usb_device *udev) in usb_req_set_sel() argument
4593 int usb_port_disable(struct usb_device *udev) in usb_port_disable() argument
4595 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_disable()
4597 return hub_port_disable(hub, udev->portnum, 0); in usb_port_disable()
4658 void usb_ep0_reinit(struct usb_device *udev) in usb_ep0_reinit() argument
4660 usb_disable_endpoint(udev, 0 + USB_DIR_IN, true); in usb_ep0_reinit()
4661 usb_disable_endpoint(udev, 0 + USB_DIR_OUT, true); in usb_ep0_reinit()
4662 usb_enable_endpoint(udev, &udev->ep0, true); in usb_ep0_reinit()
4669 static int hub_set_address(struct usb_device *udev, int devnum) in hub_set_address() argument
4673 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_set_address()
4674 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in hub_set_address()
4685 if (udev->state == USB_STATE_ADDRESS) in hub_set_address()
4687 if (udev->state != USB_STATE_DEFAULT) in hub_set_address()
4690 retval = hcd->driver->address_device(hcd, udev, timeout_ms); in hub_set_address()
4692 retval = usb_control_msg(udev, usb_sndaddr0pipe(), in hub_set_address()
4696 update_devnum(udev, devnum); in hub_set_address()
4698 usb_set_device_state(udev, USB_STATE_ADDRESS); in hub_set_address()
4699 usb_ep0_reinit(udev); in hub_set_address()
4713 static void hub_set_initial_usb2_lpm_policy(struct usb_device *udev) in hub_set_initial_usb2_lpm_policy() argument
4715 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in hub_set_initial_usb2_lpm_policy()
4718 if (!udev->usb2_hw_lpm_capable || !udev->bos) in hub_set_initial_usb2_lpm_policy()
4722 connect_type = hub->ports[udev->portnum - 1]->connect_type; in hub_set_initial_usb2_lpm_policy()
4724 if ((udev->bos->ext_cap->bmAttributes & cpu_to_le32(USB_BESL_SUPPORT)) || in hub_set_initial_usb2_lpm_policy()
4726 udev->usb2_hw_lpm_allowed = 1; in hub_set_initial_usb2_lpm_policy()
4727 usb_enable_usb2_hardware_lpm(udev); in hub_set_initial_usb2_lpm_policy()
4731 static int hub_enable_device(struct usb_device *udev) in hub_enable_device() argument
4733 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_enable_device()
4737 if (udev->state == USB_STATE_ADDRESS) in hub_enable_device()
4739 if (udev->state != USB_STATE_DEFAULT) in hub_enable_device()
4742 return hcd->driver->enable_device(hcd, udev); in hub_enable_device()
4760 static int get_bMaxPacketSize0(struct usb_device *udev, in get_bMaxPacketSize0() argument
4773 rc = usb_control_msg(udev, usb_rcvaddr0pipe(), in get_bMaxPacketSize0()
4798 udev->speed > USB_SPEED_FULL)) in get_bMaxPacketSize0()
4824 hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, in hub_port_init() argument
4832 enum usb_device_speed oldspeed = udev->speed; in hub_port_init()
4834 int devnum = udev->devnum; in hub_port_init()
4861 retval = hub_port_reset(hub, port1, udev, delay, false); in hub_port_init()
4869 if (oldspeed != USB_SPEED_UNKNOWN && oldspeed != udev->speed && in hub_port_init()
4870 !(oldspeed == USB_SPEED_SUPER && udev->speed > oldspeed)) { in hub_port_init()
4871 dev_dbg(&udev->dev, "device reset changed speed!\n"); in hub_port_init()
4874 oldspeed = udev->speed; in hub_port_init()
4880 switch (udev->speed) { in hub_port_init()
4883 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(512); in hub_port_init()
4886 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(64); in hub_port_init()
4893 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(64); in hub_port_init()
4896 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(8); in hub_port_init()
4903 speed = usb_speed_string(udev->speed); in hub_port_init()
4912 if (udev->bus->controller->driver) in hub_port_init()
4913 driver_name = udev->bus->controller->driver->name; in hub_port_init()
4915 driver_name = udev->bus->sysdev->driver->name; in hub_port_init()
4917 if (udev->speed < USB_SPEED_SUPER) in hub_port_init()
4918 dev_info(&udev->dev, in hub_port_init()
4926 udev->tt = hdev->tt; in hub_port_init()
4927 udev->ttport = hdev->ttport; in hub_port_init()
4928 } else if (udev->speed != USB_SPEED_HIGH in hub_port_init()
4931 dev_err(&udev->dev, "parent hub has no TT\n"); in hub_port_init()
4935 udev->tt = &hub->tt; in hub_port_init()
4936 udev->ttport = port1; in hub_port_init()
4952 do_new_scheme = use_new_scheme(udev, retry_counter, port_dev); in hub_port_init()
4961 retval = hub_enable_device(udev); in hub_port_init()
4963 dev_err(&udev->dev, in hub_port_init()
4969 maxp0 = get_bMaxPacketSize0(udev, buf, in hub_port_init()
4972 maxp0 != udev->descriptor.bMaxPacketSize0) { in hub_port_init()
4973 dev_err(&udev->dev, "device reset changed ep0 maxpacket size!\n"); in hub_port_init()
4978 retval = hub_port_reset(hub, port1, udev, delay, false); in hub_port_init()
4981 if (oldspeed != udev->speed) { in hub_port_init()
4982 dev_dbg(&udev->dev, in hub_port_init()
4989 dev_err(&udev->dev, "device descriptor read/64, error %d\n", in hub_port_init()
4997 retval = hub_set_address(udev, devnum); in hub_port_init()
5004 dev_err(&udev->dev, "device not accepting address %d, error %d\n", in hub_port_init()
5008 if (udev->speed >= USB_SPEED_SUPER) { in hub_port_init()
5009 devnum = udev->devnum; in hub_port_init()
5010 dev_info(&udev->dev, in hub_port_init()
5012 (udev->config) ? "reset" : "new", in hub_port_init()
5013 (udev->speed == USB_SPEED_SUPER_PLUS) ? in hub_port_init()
5015 (udev->ssp_rate == USB_SSP_GEN_2x2) ? in hub_port_init()
5017 (udev->ssp_rate == USB_SSP_GEN_2x1) ? in hub_port_init()
5019 (udev->ssp_rate == USB_SSP_GEN_1x2) ? in hub_port_init()
5034 maxp0 = get_bMaxPacketSize0(udev, buf, 8, retries == 0); in hub_port_init()
5038 dev_err(&udev->dev, in hub_port_init()
5044 if (!initial && maxp0 != udev->descriptor.bMaxPacketSize0) { in hub_port_init()
5045 dev_err(&udev->dev, "device reset changed ep0 maxpacket size!\n"); in hub_port_init()
5050 delay = udev->parent->hub_delay; in hub_port_init()
5051 udev->hub_delay = min_t(u32, delay, in hub_port_init()
5053 retval = usb_set_isoch_delay(udev); in hub_port_init()
5055 dev_dbg(&udev->dev, in hub_port_init()
5072 if (udev->speed >= USB_SPEED_SUPER) { in hub_port_init()
5078 if (usb_endpoint_maxp(&udev->ep0.desc) == i) { in hub_port_init()
5080 } else if (((udev->speed == USB_SPEED_FULL || in hub_port_init()
5081 udev->speed == USB_SPEED_HIGH) && in hub_port_init()
5083 (udev->speed >= USB_SPEED_SUPER && i > 0)) { in hub_port_init()
5085 if (udev->speed == USB_SPEED_FULL) in hub_port_init()
5086 dev_dbg(&udev->dev, "ep0 maxpacket = %d\n", i); in hub_port_init()
5088 dev_warn(&udev->dev, "Using ep0 maxpacket: %d\n", i); in hub_port_init()
5089 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(i); in hub_port_init()
5090 usb_ep0_reinit(udev); in hub_port_init()
5093 dev_err(&udev->dev, "Invalid ep0 maxpacket: %d\n", maxp0); in hub_port_init()
5098 descr = usb_get_device_descriptor(udev); in hub_port_init()
5102 dev_err(&udev->dev, "device descriptor read/all, error %d\n", in hub_port_init()
5107 udev->descriptor = *descr; in hub_port_init()
5118 if ((udev->speed >= USB_SPEED_SUPER) && in hub_port_init()
5119 (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0300)) { in hub_port_init()
5120 dev_err(&udev->dev, "got a wrong device descriptor, warm reset device\n"); in hub_port_init()
5121 hub_port_reset(hub, port1, udev, HUB_BH_RESET_TIME, true); in hub_port_init()
5126 usb_detect_quirks(udev); in hub_port_init()
5128 if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0201) { in hub_port_init()
5129 retval = usb_get_bos_descriptor(udev); in hub_port_init()
5131 udev->lpm_capable = usb_device_supports_lpm(udev); in hub_port_init()
5132 udev->lpm_disable_count = 1; in hub_port_init()
5133 usb_set_lpm_parameters(udev); in hub_port_init()
5134 usb_req_set_sel(udev); in hub_port_init()
5141 hcd->driver->update_device(hcd, udev); in hub_port_init()
5142 hub_set_initial_usb2_lpm_policy(udev); in hub_port_init()
5146 update_devnum(udev, devnum); /* for disconnect processing */ in hub_port_init()
5153 check_highspeed(struct usb_hub *hub, struct usb_device *udev, int port1) in check_highspeed() argument
5158 if (udev->quirks & USB_QUIRK_DEVICE_QUALIFIER) in check_highspeed()
5165 status = usb_get_descriptor(udev, USB_DT_DEVICE_QUALIFIER, 0, in check_highspeed()
5168 dev_info(&udev->dev, "not running at top speed; " in check_highspeed()
5193 struct usb_device *udev = port_dev->child; in hub_power_remaining() local
5197 if (!udev) in hub_power_remaining()
5199 if (hub_is_superspeed(udev)) in hub_power_remaining()
5208 if (udev->actconfig) in hub_power_remaining()
5209 delta = usb_get_max_power(udev, udev->actconfig); in hub_power_remaining()
5210 else if (port1 != udev->bus->otg_port || hdev->parent) in hub_power_remaining()
5228 static int descriptors_changed(struct usb_device *udev, in descriptors_changed() argument
5240 if (memcmp(&udev->descriptor, new_device_descriptor, in descriptors_changed()
5244 if ((old_bos && !udev->bos) || (!old_bos && udev->bos)) in descriptors_changed()
5246 if (udev->bos) { in descriptors_changed()
5247 len = le16_to_cpu(udev->bos->desc->wTotalLength); in descriptors_changed()
5250 if (memcmp(udev->bos->desc, old_bos->desc, len)) in descriptors_changed()
5260 if (udev->serial) in descriptors_changed()
5261 serial_len = strlen(udev->serial) + 1; in descriptors_changed()
5264 for (index = 0; index < udev->descriptor.bNumConfigurations; index++) { in descriptors_changed()
5265 old_length = le16_to_cpu(udev->config[index].desc.wTotalLength); in descriptors_changed()
5274 for (index = 0; index < udev->descriptor.bNumConfigurations; index++) { in descriptors_changed()
5275 old_length = le16_to_cpu(udev->config[index].desc.wTotalLength); in descriptors_changed()
5276 length = usb_get_descriptor(udev, USB_DT_CONFIG, index, buf, in descriptors_changed()
5279 dev_dbg(&udev->dev, "config index %d, error %d\n", in descriptors_changed()
5284 if (memcmp(buf, udev->rawdescriptors[index], old_length) in descriptors_changed()
5286 dev_dbg(&udev->dev, "config index %d changed (#%d)\n", in descriptors_changed()
5296 length = usb_string(udev, udev->descriptor.iSerialNumber, in descriptors_changed()
5299 dev_dbg(&udev->dev, "serial string error %d\n", in descriptors_changed()
5302 } else if (memcmp(buf, udev->serial, length) != 0) { in descriptors_changed()
5303 dev_dbg(&udev->dev, "serial string changed\n"); in descriptors_changed()
5321 struct usb_device *udev = port_dev->child; in hub_port_connect() local
5326 if (udev) { in hub_port_connect()
5328 usb_phy_notify_disconnect(hcd->usb_phy, udev->speed); in hub_port_connect()
5392 udev = usb_alloc_dev(hdev, hdev->bus, port1); in hub_port_connect()
5393 if (!udev) { in hub_port_connect()
5401 usb_set_device_state(udev, USB_STATE_POWERED); in hub_port_connect()
5402 udev->bus_mA = hub->mA_per_port; in hub_port_connect()
5403 udev->level = hdev->level + 1; in hub_port_connect()
5407 udev->speed = USB_SPEED_SUPER; in hub_port_connect()
5409 udev->speed = USB_SPEED_UNKNOWN; in hub_port_connect()
5411 choose_devnum(udev); in hub_port_connect()
5412 if (udev->devnum <= 0) { in hub_port_connect()
5418 status = hub_port_init(hub, udev, port1, i, NULL); in hub_port_connect()
5426 if (udev->quirks & USB_QUIRK_DELAY_INIT) in hub_port_connect()
5435 if (udev->descriptor.bDeviceClass == USB_CLASS_HUB in hub_port_connect()
5436 && udev->bus_mA <= unit_load) { in hub_port_connect()
5439 status = usb_get_std_status(udev, USB_RECIP_DEVICE, 0, in hub_port_connect()
5442 dev_dbg(&udev->dev, "get status %d ?\n", status); in hub_port_connect()
5446 dev_err(&udev->dev, in hub_port_connect()
5462 if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0200 in hub_port_connect()
5463 && udev->speed == USB_SPEED_FULL in hub_port_connect()
5465 check_highspeed(hub, udev, port1); in hub_port_connect()
5483 port_dev->child = udev; in hub_port_connect()
5489 status = usb_new_device(udev); in hub_port_connect()
5499 udev->speed); in hub_port_connect()
5515 usb_ep0_reinit(udev); in hub_port_connect()
5516 release_devnum(udev); in hub_port_connect()
5517 hub_free_dev(udev); in hub_port_connect()
5522 usb_put_dev(udev); in hub_port_connect()
5564 struct usb_device *udev = port_dev->child; in hub_port_connect_change() local
5584 if ((portstatus & USB_PORT_STAT_CONNECTION) && udev && in hub_port_connect_change()
5585 udev->state != USB_STATE_NOTATTACHED) { in hub_port_connect_change()
5593 descr = usb_get_device_descriptor(udev); in hub_port_connect_change()
5595 dev_dbg(&udev->dev, in hub_port_connect_change()
5599 if (descriptors_changed(udev, descr, in hub_port_connect_change()
5600 udev->bos)) { in hub_port_connect_change()
5601 dev_dbg(&udev->dev, in hub_port_connect_change()
5609 } else if (udev->state == USB_STATE_SUSPENDED && in hub_port_connect_change()
5610 udev->persist_enabled) { in hub_port_connect_change()
5615 status = usb_remote_wakeup(udev); in hub_port_connect_change()
5673 struct usb_device *udev = port_dev->child; in port_event() local
5702 && !connect_change && udev) { in port_event()
5763 if ((i++ < DETECT_DISCONNECT_TRIES) && udev) { in port_event()
5770 } else if (!udev || !(portstatus & USB_PORT_STAT_CONNECTION) in port_event()
5771 || udev->state == USB_STATE_NOTATTACHED) { in port_event()
5779 usb_lock_device(udev); in port_event()
5780 usb_reset_device(udev); in port_event()
5781 usb_unlock_device(udev); in port_event()
6058 static int usb_reset_and_verify_device(struct usb_device *udev) in usb_reset_and_verify_device() argument
6060 struct usb_device *parent_hdev = udev->parent; in usb_reset_and_verify_device()
6062 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_reset_and_verify_device()
6066 int port1 = udev->portnum; in usb_reset_and_verify_device()
6068 if (udev->state == USB_STATE_NOTATTACHED || in usb_reset_and_verify_device()
6069 udev->state == USB_STATE_SUSPENDED) { in usb_reset_and_verify_device()
6070 dev_dbg(&udev->dev, "device reset not allowed in state %d\n", in usb_reset_and_verify_device()
6071 udev->state); in usb_reset_and_verify_device()
6083 usb_disable_usb2_hardware_lpm(udev); in usb_reset_and_verify_device()
6085 bos = udev->bos; in usb_reset_and_verify_device()
6086 udev->bos = NULL; in usb_reset_and_verify_device()
6098 usb_ep0_reinit(udev); in usb_reset_and_verify_device()
6099 ret = hub_port_init(parent_hub, udev, port1, i, &descriptor); in usb_reset_and_verify_device()
6109 if (descriptors_changed(udev, &descriptor, bos)) { in usb_reset_and_verify_device()
6110 dev_info(&udev->dev, "device firmware changed\n"); in usb_reset_and_verify_device()
6115 if (!udev->actconfig) in usb_reset_and_verify_device()
6119 ret = usb_hcd_alloc_bandwidth(udev, udev->actconfig, NULL, NULL); in usb_reset_and_verify_device()
6121 dev_warn(&udev->dev, in usb_reset_and_verify_device()
6127 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_reset_and_verify_device()
6129 udev->actconfig->desc.bConfigurationValue, 0, in usb_reset_and_verify_device()
6132 dev_err(&udev->dev, in usb_reset_and_verify_device()
6134 udev->actconfig->desc.bConfigurationValue, ret); in usb_reset_and_verify_device()
6139 usb_set_device_state(udev, USB_STATE_CONFIGURED); in usb_reset_and_verify_device()
6147 for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { in usb_reset_and_verify_device()
6148 struct usb_host_config *config = udev->actconfig; in usb_reset_and_verify_device()
6154 usb_disable_interface(udev, intf, true); in usb_reset_and_verify_device()
6155 usb_enable_interface(udev, intf, true); in usb_reset_and_verify_device()
6163 ret = usb_set_interface(udev, desc->bInterfaceNumber, in usb_reset_and_verify_device()
6168 dev_err(&udev->dev, "failed to restore interface %d " in usb_reset_and_verify_device()
6182 usb_enable_usb2_hardware_lpm(udev); in usb_reset_and_verify_device()
6183 usb_unlocked_enable_lpm(udev); in usb_reset_and_verify_device()
6184 usb_enable_ltm(udev); in usb_reset_and_verify_device()
6185 usb_release_bos_descriptor(udev); in usb_reset_and_verify_device()
6186 udev->bos = bos; in usb_reset_and_verify_device()
6190 usb_release_bos_descriptor(udev); in usb_reset_and_verify_device()
6191 udev->bos = bos; in usb_reset_and_verify_device()
6222 int usb_reset_device(struct usb_device *udev) in usb_reset_device() argument
6228 struct usb_host_config *config = udev->actconfig; in usb_reset_device()
6229 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_reset_device()
6231 if (udev->state == USB_STATE_NOTATTACHED) { in usb_reset_device()
6232 dev_dbg(&udev->dev, "device reset not allowed in state %d\n", in usb_reset_device()
6233 udev->state); in usb_reset_device()
6237 if (!udev->parent) { in usb_reset_device()
6239 dev_dbg(&udev->dev, "%s for root hub!\n", __func__); in usb_reset_device()
6243 if (udev->reset_in_progress) in usb_reset_device()
6245 udev->reset_in_progress = 1; in usb_reset_device()
6247 port_dev = hub->ports[udev->portnum - 1]; in usb_reset_device()
6261 usb_autoresume_device(udev); in usb_reset_device()
6283 ret = usb_reset_and_verify_device(udev); in usb_reset_device()
6306 usb_unbind_and_rebind_marked_interfaces(udev); in usb_reset_device()
6309 usb_autosuspend_device(udev); in usb_reset_device()
6311 udev->reset_in_progress = 0; in usb_reset_device()