Lines Matching refs:udev
133 static int usb_reset_and_verify_device(struct usb_device *udev);
160 int usb_device_supports_lpm(struct usb_device *udev) in usb_device_supports_lpm() argument
163 if (udev->quirks & USB_QUIRK_NO_LPM) in usb_device_supports_lpm()
167 if (!udev->bos) in usb_device_supports_lpm()
173 if (udev->speed == USB_SPEED_HIGH || udev->speed == USB_SPEED_FULL) { in usb_device_supports_lpm()
174 if (udev->bos->ext_cap && in usb_device_supports_lpm()
176 le32_to_cpu(udev->bos->ext_cap->bmAttributes))) in usb_device_supports_lpm()
186 if (!udev->bos->ss_cap) { in usb_device_supports_lpm()
187 dev_info(&udev->dev, "No LPM exit latency info found, disabling LPM.\n"); in usb_device_supports_lpm()
191 if (udev->bos->ss_cap->bU1devExitLat == 0 && in usb_device_supports_lpm()
192 udev->bos->ss_cap->bU2DevExitLat == 0) { in usb_device_supports_lpm()
193 if (udev->parent) in usb_device_supports_lpm()
194 dev_info(&udev->dev, "LPM exit latency is zeroed, disabling LPM.\n"); in usb_device_supports_lpm()
196 dev_info(&udev->dev, "We don't know the algorithms for LPM for this host, disabling LPM.\n"); in usb_device_supports_lpm()
200 if (!udev->parent || udev->parent->lpm_capable) in usb_device_supports_lpm()
210 static void usb_set_lpm_mel(struct usb_device *udev, in usb_set_lpm_mel() argument
257 static void usb_set_lpm_pel(struct usb_device *udev, in usb_set_lpm_pel() argument
311 static void usb_set_lpm_sel(struct usb_device *udev, in usb_set_lpm_sel() argument
321 for (parent = udev->parent, num_hubs = 0; parent->parent; in usb_set_lpm_sel()
334 static void usb_set_lpm_parameters(struct usb_device *udev) in usb_set_lpm_parameters() argument
343 if (!udev->lpm_capable || udev->speed < USB_SPEED_SUPER) in usb_set_lpm_parameters()
347 if (!udev->bos) in usb_set_lpm_parameters()
350 hub = usb_hub_to_struct_hub(udev->parent); in usb_set_lpm_parameters()
357 udev_u1_del = udev->bos->ss_cap->bU1devExitLat; in usb_set_lpm_parameters()
358 udev_u2_del = le16_to_cpu(udev->bos->ss_cap->bU2DevExitLat); in usb_set_lpm_parameters()
359 hub_u1_del = udev->parent->bos->ss_cap->bU1devExitLat; in usb_set_lpm_parameters()
360 hub_u2_del = le16_to_cpu(udev->parent->bos->ss_cap->bU2DevExitLat); in usb_set_lpm_parameters()
362 usb_set_lpm_mel(udev, &udev->u1_params, udev_u1_del, in usb_set_lpm_parameters()
363 hub, &udev->parent->u1_params, hub_u1_del); in usb_set_lpm_parameters()
365 usb_set_lpm_mel(udev, &udev->u2_params, udev_u2_del, in usb_set_lpm_parameters()
366 hub, &udev->parent->u2_params, hub_u2_del); in usb_set_lpm_parameters()
387 usb_set_lpm_pel(udev, &udev->u1_params, udev_u1_del, in usb_set_lpm_parameters()
388 hub, &udev->parent->u1_params, hub_u1_del, in usb_set_lpm_parameters()
396 usb_set_lpm_pel(udev, &udev->u2_params, udev_u2_del, in usb_set_lpm_parameters()
397 hub, &udev->parent->u2_params, hub_u2_del, in usb_set_lpm_parameters()
401 usb_set_lpm_sel(udev, &udev->u1_params); in usb_set_lpm_parameters()
402 usb_set_lpm_sel(udev, &udev->u2_params); in usb_set_lpm_parameters()
919 struct usb_device *udev = urb->dev; in usb_hub_clear_tt_buffer() local
921 struct usb_tt *tt = udev->tt; in usb_hub_clear_tt_buffer()
931 dev_err(&udev->dev, "can't save CLEAR_TT_BUFFER state\n"); in usb_hub_clear_tt_buffer()
937 clear->tt = tt->multi ? udev->ttport : 1; in usb_hub_clear_tt_buffer()
939 clear->devinfo |= ((u16)udev->devaddr) << 4; in usb_hub_clear_tt_buffer()
947 clear->hcd = bus_to_hcd(udev->bus); in usb_hub_clear_tt_buffer()
1047 int usb_remove_device(struct usb_device *udev) in usb_remove_device() argument
1053 if (!udev->parent) /* Can't remove a root hub */ in usb_remove_device()
1055 hub = usb_hub_to_struct_hub(udev->parent); in usb_remove_device()
1062 set_bit(udev->portnum, hub->removed_bits); in usb_remove_device()
1063 hub_port_logical_disconnect(hub, udev->portnum); in usb_remove_device()
1177 struct usb_device *udev = port_dev->child; in hub_activate() local
1185 if (udev || (portstatus & USB_PORT_STAT_CONNECTION)) in hub_activate()
1198 !udev || in hub_activate()
1199 udev->state == USB_STATE_NOTATTACHED)) { in hub_activate()
1256 if (!udev || udev->state == USB_STATE_NOTATTACHED) { in hub_activate()
1263 if (udev || (portstatus & USB_PORT_STAT_CONNECTION) || in hub_activate()
1285 } else if (udev->persist_enabled) { in hub_activate()
1287 udev->reset_resume = 1; in hub_activate()
1297 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in hub_activate()
2077 bool usb_device_is_owned(struct usb_device *udev) in usb_device_is_owned() argument
2081 if (udev->state == USB_STATE_NOTATTACHED || !udev->parent) in usb_device_is_owned()
2083 hub = usb_hub_to_struct_hub(udev->parent); in usb_device_is_owned()
2084 return !!hub->ports[udev->portnum - 1]->port_owner; in usb_device_is_owned()
2087 static void update_port_device_state(struct usb_device *udev) in update_port_device_state() argument
2092 if (udev->parent) { in update_port_device_state()
2093 hub = usb_hub_to_struct_hub(udev->parent); in update_port_device_state()
2103 port_dev = hub->ports[udev->portnum - 1]; in update_port_device_state()
2104 WRITE_ONCE(port_dev->state, udev->state); in update_port_device_state()
2110 static void recursively_mark_NOTATTACHED(struct usb_device *udev) in recursively_mark_NOTATTACHED() argument
2112 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in recursively_mark_NOTATTACHED()
2115 for (i = 0; i < udev->maxchild; ++i) { in recursively_mark_NOTATTACHED()
2119 if (udev->state == USB_STATE_SUSPENDED) in recursively_mark_NOTATTACHED()
2120 udev->active_duration -= jiffies; in recursively_mark_NOTATTACHED()
2121 udev->state = USB_STATE_NOTATTACHED; in recursively_mark_NOTATTACHED()
2122 update_port_device_state(udev); in recursively_mark_NOTATTACHED()
2146 void usb_set_device_state(struct usb_device *udev, in usb_set_device_state() argument
2153 if (udev->state == USB_STATE_NOTATTACHED) in usb_set_device_state()
2160 if (udev->parent) { in usb_set_device_state()
2161 if (udev->state == USB_STATE_SUSPENDED in usb_set_device_state()
2165 wakeup = (udev->quirks & in usb_set_device_state()
2167 udev->actconfig->desc.bmAttributes & in usb_set_device_state()
2172 if (udev->state == USB_STATE_SUSPENDED && in usb_set_device_state()
2174 udev->active_duration -= jiffies; in usb_set_device_state()
2176 udev->state != USB_STATE_SUSPENDED) in usb_set_device_state()
2177 udev->active_duration += jiffies; in usb_set_device_state()
2178 udev->state = new_state; in usb_set_device_state()
2179 update_port_device_state(udev); in usb_set_device_state()
2181 recursively_mark_NOTATTACHED(udev); in usb_set_device_state()
2184 device_set_wakeup_capable(&udev->dev, wakeup); in usb_set_device_state()
2201 static void choose_devnum(struct usb_device *udev) in choose_devnum() argument
2204 struct usb_bus *bus = udev->bus; in choose_devnum()
2216 udev->devnum = devnum; in choose_devnum()
2221 static void release_devnum(struct usb_device *udev) in release_devnum() argument
2223 if (udev->devnum > 0) { in release_devnum()
2224 clear_bit(udev->devnum, udev->bus->devmap); in release_devnum()
2225 udev->devnum = -1; in release_devnum()
2229 static void update_devnum(struct usb_device *udev, int devnum) in update_devnum() argument
2231 udev->devnum = devnum; in update_devnum()
2232 if (!udev->devaddr) in update_devnum()
2233 udev->devaddr = (u8)devnum; in update_devnum()
2236 static void hub_free_dev(struct usb_device *udev) in hub_free_dev() argument
2238 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_free_dev()
2241 if (hcd->driver->free_dev && udev->parent) in hub_free_dev()
2242 hcd->driver->free_dev(hcd, udev); in hub_free_dev()
2245 static void hub_disconnect_children(struct usb_device *udev) in hub_disconnect_children() argument
2247 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in hub_disconnect_children()
2251 for (i = 0; i < udev->maxchild; i++) { in hub_disconnect_children()
2277 struct usb_device *udev = *pdev; in usb_disconnect() local
2285 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in usb_disconnect()
2286 dev_info(&udev->dev, "USB disconnect, device number %d\n", in usb_disconnect()
2287 udev->devnum); in usb_disconnect()
2293 pm_runtime_barrier(&udev->dev); in usb_disconnect()
2295 usb_lock_device(udev); in usb_disconnect()
2297 hub_disconnect_children(udev); in usb_disconnect()
2303 dev_dbg(&udev->dev, "unregistering device\n"); in usb_disconnect()
2304 usb_disable_device(udev, 0); in usb_disconnect()
2305 usb_hcd_synchronize_unlinks(udev); in usb_disconnect()
2307 if (udev->parent) { in usb_disconnect()
2308 port1 = udev->portnum; in usb_disconnect()
2309 hub = usb_hub_to_struct_hub(udev->parent); in usb_disconnect()
2312 sysfs_remove_link(&udev->dev.kobj, "port"); in usb_disconnect()
2322 typec_deattach(port_dev->connector, &udev->dev); in usb_disconnect()
2325 usb_remove_ep_devs(&udev->ep0); in usb_disconnect()
2326 usb_unlock_device(udev); in usb_disconnect()
2332 device_del(&udev->dev); in usb_disconnect()
2337 release_devnum(udev); in usb_disconnect()
2347 hub_free_dev(udev); in usb_disconnect()
2349 put_device(&udev->dev); in usb_disconnect()
2353 static void show_string(struct usb_device *udev, char *id, char *string) in show_string() argument
2357 dev_info(&udev->dev, "%s: %s\n", id, string); in show_string()
2360 static void announce_device(struct usb_device *udev) in announce_device() argument
2362 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); in announce_device()
2364 dev_info(&udev->dev, in announce_device()
2366 le16_to_cpu(udev->descriptor.idVendor), in announce_device()
2367 le16_to_cpu(udev->descriptor.idProduct), in announce_device()
2369 dev_info(&udev->dev, in announce_device()
2371 udev->descriptor.iManufacturer, in announce_device()
2372 udev->descriptor.iProduct, in announce_device()
2373 udev->descriptor.iSerialNumber); in announce_device()
2374 show_string(udev, "Product", udev->product); in announce_device()
2375 show_string(udev, "Manufacturer", udev->manufacturer); in announce_device()
2376 show_string(udev, "SerialNumber", udev->serial); in announce_device()
2379 static inline void announce_device(struct usb_device *udev) { } in announce_device() argument
2391 static int usb_enumerate_device_otg(struct usb_device *udev) in usb_enumerate_device_otg() argument
2401 if (!udev->bus->is_b_host in usb_enumerate_device_otg()
2402 && udev->config in usb_enumerate_device_otg()
2403 && udev->parent == udev->bus->root_hub) { in usb_enumerate_device_otg()
2405 struct usb_bus *bus = udev->bus; in usb_enumerate_device_otg()
2406 unsigned port1 = udev->portnum; in usb_enumerate_device_otg()
2409 err = __usb_get_extra_descriptor(udev->rawdescriptors[0], in usb_enumerate_device_otg()
2410 le16_to_cpu(udev->config[0].desc.wTotalLength), in usb_enumerate_device_otg()
2415 dev_info(&udev->dev, "Dual-Role OTG device on %sHNP port\n", in usb_enumerate_device_otg()
2421 err = usb_control_msg(udev, in usb_enumerate_device_otg()
2422 usb_sndctrlpipe(udev, 0), in usb_enumerate_device_otg()
2432 dev_err(&udev->dev, "can't set HNP mode: %d\n", in usb_enumerate_device_otg()
2446 err = usb_control_msg(udev, in usb_enumerate_device_otg()
2447 usb_sndctrlpipe(udev, 0), in usb_enumerate_device_otg()
2453 dev_err(&udev->dev, in usb_enumerate_device_otg()
2477 static int usb_enumerate_device(struct usb_device *udev) in usb_enumerate_device() argument
2480 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_enumerate_device()
2482 if (udev->config == NULL) { in usb_enumerate_device()
2483 err = usb_get_configuration(udev); in usb_enumerate_device()
2486 dev_err(&udev->dev, "can't read configurations, error %d\n", in usb_enumerate_device()
2493 udev->product = usb_cache_string(udev, udev->descriptor.iProduct); in usb_enumerate_device()
2494 udev->manufacturer = usb_cache_string(udev, in usb_enumerate_device()
2495 udev->descriptor.iManufacturer); in usb_enumerate_device()
2496 udev->serial = usb_cache_string(udev, udev->descriptor.iSerialNumber); in usb_enumerate_device()
2498 err = usb_enumerate_device_otg(udev); in usb_enumerate_device()
2503 !is_targeted(udev)) { in usb_enumerate_device()
2507 if (IS_ENABLED(CONFIG_USB_OTG) && (udev->bus->b_hnp_enable in usb_enumerate_device()
2508 || udev->bus->is_b_host)) { in usb_enumerate_device()
2509 err = usb_port_suspend(udev, PMSG_AUTO_SUSPEND); in usb_enumerate_device()
2511 dev_dbg(&udev->dev, "HNP fail, %d\n", err); in usb_enumerate_device()
2516 usb_detect_interface_quirks(udev); in usb_enumerate_device()
2521 static void set_usb_port_removable(struct usb_device *udev) in set_usb_port_removable() argument
2523 struct usb_device *hdev = udev->parent; in set_usb_port_removable()
2525 u8 port = udev->portnum; in set_usb_port_removable()
2529 dev_set_removable(&udev->dev, DEVICE_REMOVABLE_UNKNOWN); in set_usb_port_removable()
2534 hub = usb_hub_to_struct_hub(udev->parent); in set_usb_port_removable()
2540 switch (hub->ports[udev->portnum - 1]->connect_type) { in set_usb_port_removable()
2542 dev_set_removable(&udev->dev, DEVICE_REMOVABLE); in set_usb_port_removable()
2546 dev_set_removable(&udev->dev, DEVICE_FIXED); in set_usb_port_removable()
2571 dev_set_removable(&udev->dev, DEVICE_REMOVABLE); in set_usb_port_removable()
2573 dev_set_removable(&udev->dev, DEVICE_FIXED); in set_usb_port_removable()
2598 int usb_new_device(struct usb_device *udev) in usb_new_device() argument
2602 if (udev->parent) { in usb_new_device()
2607 device_init_wakeup(&udev->dev, 0); in usb_new_device()
2611 pm_runtime_set_active(&udev->dev); in usb_new_device()
2612 pm_runtime_get_noresume(&udev->dev); in usb_new_device()
2613 pm_runtime_use_autosuspend(&udev->dev); in usb_new_device()
2614 pm_runtime_enable(&udev->dev); in usb_new_device()
2619 usb_disable_autosuspend(udev); in usb_new_device()
2621 err = usb_enumerate_device(udev); /* Read descriptors */ in usb_new_device()
2624 dev_dbg(&udev->dev, "udev %d, busnum %d, minor = %d\n", in usb_new_device()
2625 udev->devnum, udev->bus->busnum, in usb_new_device()
2626 (((udev->bus->busnum-1) * 128) + (udev->devnum-1))); in usb_new_device()
2628 udev->dev.devt = MKDEV(USB_DEVICE_MAJOR, in usb_new_device()
2629 (((udev->bus->busnum-1) * 128) + (udev->devnum-1))); in usb_new_device()
2632 announce_device(udev); in usb_new_device()
2634 if (udev->serial) in usb_new_device()
2635 add_device_randomness(udev->serial, strlen(udev->serial)); in usb_new_device()
2636 if (udev->product) in usb_new_device()
2637 add_device_randomness(udev->product, strlen(udev->product)); in usb_new_device()
2638 if (udev->manufacturer) in usb_new_device()
2639 add_device_randomness(udev->manufacturer, in usb_new_device()
2640 strlen(udev->manufacturer)); in usb_new_device()
2642 device_enable_async_suspend(&udev->dev); in usb_new_device()
2645 set_usb_port_removable(udev); in usb_new_device()
2651 err = device_add(&udev->dev); in usb_new_device()
2653 dev_err(&udev->dev, "can't device_add, error %d\n", err); in usb_new_device()
2658 if (udev->parent) { in usb_new_device()
2659 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_new_device()
2660 int port1 = udev->portnum; in usb_new_device()
2663 err = sysfs_create_link(&udev->dev.kobj, in usb_new_device()
2669 &udev->dev.kobj, "device"); in usb_new_device()
2671 sysfs_remove_link(&udev->dev.kobj, "port"); in usb_new_device()
2678 typec_attach(port_dev->connector, &udev->dev); in usb_new_device()
2681 (void) usb_create_ep_devs(&udev->dev, &udev->ep0, udev); in usb_new_device()
2682 usb_mark_last_busy(udev); in usb_new_device()
2683 pm_runtime_put_sync_autosuspend(&udev->dev); in usb_new_device()
2687 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in usb_new_device()
2688 pm_runtime_disable(&udev->dev); in usb_new_device()
2689 pm_runtime_set_suspended(&udev->dev); in usb_new_device()
2861 static bool use_new_scheme(struct usb_device *udev, int retry, in use_new_scheme() argument
2875 if (udev->speed >= USB_SPEED_SUPER) in use_new_scheme()
2908 struct usb_device *udev, unsigned int delay, bool warm) in hub_port_wait_reset() argument
2977 if (!udev) in hub_port_wait_reset()
2982 udev->rx_lanes = USB_EXT_PORT_RX_LANES(ext_portstatus) + 1; in hub_port_wait_reset()
2983 udev->tx_lanes = USB_EXT_PORT_TX_LANES(ext_portstatus) + 1; in hub_port_wait_reset()
2984 udev->ssp_rate = get_port_ssp_rate(hub->hdev, ext_portstatus); in hub_port_wait_reset()
2986 udev->rx_lanes = 1; in hub_port_wait_reset()
2987 udev->tx_lanes = 1; in hub_port_wait_reset()
2988 udev->ssp_rate = USB_SSP_GEN_UNKNOWN; in hub_port_wait_reset()
2990 if (udev->ssp_rate != USB_SSP_GEN_UNKNOWN) in hub_port_wait_reset()
2991 udev->speed = USB_SPEED_SUPER_PLUS; in hub_port_wait_reset()
2993 udev->speed = USB_SPEED_SUPER; in hub_port_wait_reset()
2995 udev->speed = USB_SPEED_HIGH; in hub_port_wait_reset()
2997 udev->speed = USB_SPEED_LOW; in hub_port_wait_reset()
2999 udev->speed = USB_SPEED_FULL; in hub_port_wait_reset()
3005 struct usb_device *udev, unsigned int delay, bool warm) in hub_port_reset() argument
3047 status = hub_port_wait_reset(hub, port1, udev, delay, in hub_port_reset()
3072 if (udev) in hub_port_reset()
3122 if (udev) { in hub_port_reset()
3123 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_port_reset()
3125 update_devnum(udev, 0); in hub_port_reset()
3130 hcd->driver->reset_device(hcd, udev); in hub_port_reset()
3132 usb_set_device_state(udev, USB_STATE_DEFAULT); in hub_port_reset()
3135 if (udev) in hub_port_reset()
3136 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in hub_port_reset()
3239 static int check_port_resume_type(struct usb_device *udev, in check_port_resume_type() argument
3248 if (status == 0 && udev->reset_resume in check_port_resume_type()
3270 else if (!(portstatus & USB_PORT_STAT_ENABLE) && !udev->reset_resume) { in check_port_resume_type()
3271 if (udev->persist_enabled) in check_port_resume_type()
3272 udev->reset_resume = 1; in check_port_resume_type()
3280 } else if (udev->reset_resume) { in check_port_resume_type()
3303 int usb_disable_ltm(struct usb_device *udev) in usb_disable_ltm() argument
3305 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_disable_ltm()
3309 !usb_device_supports_ltm(udev)) in usb_disable_ltm()
3315 if (!udev->actconfig) in usb_disable_ltm()
3318 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_ltm()
3325 void usb_enable_ltm(struct usb_device *udev) in usb_enable_ltm() argument
3327 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_enable_ltm()
3331 !usb_device_supports_ltm(udev)) in usb_enable_ltm()
3337 if (!udev->actconfig) in usb_enable_ltm()
3340 usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_ltm()
3357 static int usb_enable_remote_wakeup(struct usb_device *udev) in usb_enable_remote_wakeup() argument
3359 if (udev->speed < USB_SPEED_SUPER) in usb_enable_remote_wakeup()
3360 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_remote_wakeup()
3365 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_remote_wakeup()
3383 static int usb_disable_remote_wakeup(struct usb_device *udev) in usb_disable_remote_wakeup() argument
3385 if (udev->speed < USB_SPEED_SUPER) in usb_disable_remote_wakeup()
3386 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_remote_wakeup()
3391 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_remote_wakeup()
3398 unsigned usb_wakeup_enabled_descendants(struct usb_device *udev) in usb_wakeup_enabled_descendants() argument
3400 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in usb_wakeup_enabled_descendants()
3402 return udev->do_remote_wakeup + in usb_wakeup_enabled_descendants()
3455 int usb_port_suspend(struct usb_device *udev, pm_message_t msg) in usb_port_suspend() argument
3457 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_suspend()
3458 struct usb_port *port_dev = hub->ports[udev->portnum - 1]; in usb_port_suspend()
3459 int port1 = udev->portnum; in usb_port_suspend()
3471 if (udev->do_remote_wakeup) { in usb_port_suspend()
3472 status = usb_enable_remote_wakeup(udev); in usb_port_suspend()
3474 dev_dbg(&udev->dev, "won't remote wakeup, status %d\n", in usb_port_suspend()
3483 usb_disable_usb2_hardware_lpm(udev); in usb_port_suspend()
3485 if (usb_disable_ltm(udev)) { in usb_port_suspend()
3486 dev_err(&udev->dev, "Failed to disable LTM before suspend\n"); in usb_port_suspend()
3507 else if (PMSG_IS_AUTO(msg) || usb_wakeup_enabled_descendants(udev) > 0) in usb_port_suspend()
3538 usb_enable_ltm(udev); in usb_port_suspend()
3541 usb_enable_usb2_hardware_lpm(udev); in usb_port_suspend()
3543 if (udev->do_remote_wakeup) in usb_port_suspend()
3544 (void) usb_disable_remote_wakeup(udev); in usb_port_suspend()
3552 dev_dbg(&udev->dev, "usb %ssuspend, wakeup %d\n", in usb_port_suspend()
3554 udev->do_remote_wakeup); in usb_port_suspend()
3556 udev->port_is_suspended = 1; in usb_port_suspend()
3561 usb_set_device_state(udev, USB_STATE_SUSPENDED); in usb_port_suspend()
3564 if (status == 0 && !udev->do_remote_wakeup && udev->persist_enabled in usb_port_suspend()
3585 static int finish_port_resume(struct usb_device *udev) in finish_port_resume() argument
3591 dev_dbg(&udev->dev, "%s\n", in finish_port_resume()
3592 udev->reset_resume ? "finish reset-resume" : "finish resume"); in finish_port_resume()
3599 usb_set_device_state(udev, udev->actconfig in finish_port_resume()
3608 if (udev->reset_resume) { in finish_port_resume()
3616 if (udev->quirks & USB_QUIRK_RESET) in finish_port_resume()
3619 status = usb_reset_and_verify_device(udev); in finish_port_resume()
3628 status = usb_get_std_status(udev, USB_RECIP_DEVICE, 0, &devstatus); in finish_port_resume()
3631 if (status && !udev->reset_resume && udev->persist_enabled) { in finish_port_resume()
3632 dev_dbg(&udev->dev, "retry with reset-resume\n"); in finish_port_resume()
3633 udev->reset_resume = 1; in finish_port_resume()
3639 dev_dbg(&udev->dev, "gone after usb resume? status %d\n", in finish_port_resume()
3647 } else if (udev->actconfig && !udev->reset_resume) { in finish_port_resume()
3648 if (udev->speed < USB_SPEED_SUPER) { in finish_port_resume()
3650 status = usb_disable_remote_wakeup(udev); in finish_port_resume()
3652 status = usb_get_std_status(udev, USB_RECIP_INTERFACE, 0, in finish_port_resume()
3656 status = usb_disable_remote_wakeup(udev); in finish_port_resume()
3660 dev_dbg(&udev->dev, in finish_port_resume()
3692 static int wait_for_connected(struct usb_device *udev, in wait_for_connected() argument
3709 dev_dbg(&udev->dev, "Waited %dms for CONNECT\n", delay_ms); in wait_for_connected()
3747 int usb_port_resume(struct usb_device *udev, pm_message_t msg) in usb_port_resume() argument
3749 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_resume()
3750 struct usb_port *port_dev = hub->ports[udev->portnum - 1]; in usb_port_resume()
3751 int port1 = udev->portnum; in usb_port_resume()
3758 dev_dbg(&udev->dev, "can't resume usb port, status %d\n", in usb_port_resume()
3770 pm_wakeup_event(&udev->dev, 0); in usb_port_resume()
3784 dev_dbg(&udev->dev, "usb %sresume\n", in usb_port_resume()
3797 udev->port_is_suspended = 0; in usb_port_resume()
3812 if (udev->persist_enabled) in usb_port_resume()
3813 status = wait_for_connected(udev, hub, port1, &portchange, in usb_port_resume()
3816 status = check_port_resume_type(udev, in usb_port_resume()
3819 status = finish_port_resume(udev); in usb_port_resume()
3821 dev_dbg(&udev->dev, "can't resume, status %d\n", status); in usb_port_resume()
3825 usb_enable_usb2_hardware_lpm(udev); in usb_port_resume()
3828 usb_enable_ltm(udev); in usb_port_resume()
3836 int usb_remote_wakeup(struct usb_device *udev) in usb_remote_wakeup() argument
3840 usb_lock_device(udev); in usb_remote_wakeup()
3841 if (udev->state == USB_STATE_SUSPENDED) { in usb_remote_wakeup()
3842 dev_dbg(&udev->dev, "usb %sresume\n", "wakeup-"); in usb_remote_wakeup()
3843 status = usb_autoresume_device(udev); in usb_remote_wakeup()
3846 usb_autosuspend_device(udev); in usb_remote_wakeup()
3849 usb_unlock_device(udev); in usb_remote_wakeup()
3860 struct usb_device *udev; in hub_handle_remote_wakeup() local
3866 udev = port_dev->child; in hub_handle_remote_wakeup()
3873 if (!udev || udev->state != USB_STATE_SUSPENDED || in hub_handle_remote_wakeup()
3880 if (udev) { in hub_handle_remote_wakeup()
3885 ret = usb_remote_wakeup(udev); in hub_handle_remote_wakeup()
3925 struct usb_device *udev = port_dev->child; in hub_suspend() local
3927 if (udev && udev->can_submit) { in hub_suspend()
3929 dev_name(&udev->dev)); in hub_suspend()
3933 if (udev) in hub_suspend()
3935 usb_wakeup_enabled_descendants(udev); in hub_suspend()
3970 struct usb_device *udev; in report_wakeup_requests() local
3992 udev = hub->ports[i]->child; in report_wakeup_requests()
3993 if (udev) in report_wakeup_requests()
3994 pm_wakeup_event(&udev->dev, 0); in report_wakeup_requests()
4060 static int usb_req_set_sel(struct usb_device *udev) in usb_req_set_sel() argument
4069 if (!udev->parent || udev->speed < USB_SPEED_SUPER || !udev->lpm_capable) in usb_req_set_sel()
4073 u1_sel = DIV_ROUND_UP(udev->u1_params.sel, 1000); in usb_req_set_sel()
4074 u1_pel = DIV_ROUND_UP(udev->u1_params.pel, 1000); in usb_req_set_sel()
4075 u2_sel = DIV_ROUND_UP(udev->u2_params.sel, 1000); in usb_req_set_sel()
4076 u2_pel = DIV_ROUND_UP(udev->u2_params.pel, 1000); in usb_req_set_sel()
4090 dev_dbg(&udev->dev, "Device-initiated U1/U2 disabled due to long SEL or PEL\n"); in usb_req_set_sel()
4108 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_req_set_sel()
4117 udev->lpm_devinit_allow = 1; in usb_req_set_sel()
4125 static int usb_set_device_initiated_lpm(struct usb_device *udev, in usb_set_device_initiated_lpm() argument
4139 dev_warn(&udev->dev, "%s: Can't %s non-U1 or U2 state.\n", in usb_set_device_initiated_lpm()
4144 if (udev->state != USB_STATE_CONFIGURED) { in usb_set_device_initiated_lpm()
4145 dev_dbg(&udev->dev, "%s: Can't %s %s state " in usb_set_device_initiated_lpm()
4157 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_set_device_initiated_lpm()
4164 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_set_device_initiated_lpm()
4172 dev_warn(&udev->dev, "%s of device-initiated %s failed.\n", in usb_set_device_initiated_lpm()
4180 static int usb_set_lpm_timeout(struct usb_device *udev, in usb_set_lpm_timeout() argument
4194 dev_warn(&udev->dev, "%s: Can't set timeout for non-U1 or U2 state.\n", in usb_set_lpm_timeout()
4201 dev_warn(&udev->dev, "Failed to set %s timeout to 0x%x, " in usb_set_lpm_timeout()
4207 ret = set_port_feature(udev->parent, in usb_set_lpm_timeout()
4208 USB_PORT_LPM_TIMEOUT(timeout) | udev->portnum, in usb_set_lpm_timeout()
4211 dev_warn(&udev->dev, "Failed to set %s timeout to 0x%x," in usb_set_lpm_timeout()
4217 udev->u1_params.timeout = timeout; in usb_set_lpm_timeout()
4219 udev->u2_params.timeout = timeout; in usb_set_lpm_timeout()
4228 static bool usb_device_may_initiate_lpm(struct usb_device *udev, in usb_device_may_initiate_lpm() argument
4234 if (!udev->lpm_devinit_allow) in usb_device_may_initiate_lpm()
4238 sel = DIV_ROUND_UP(udev->u1_params.sel, 1000); in usb_device_may_initiate_lpm()
4240 sel = DIV_ROUND_UP(udev->u2_params.sel, 1000); in usb_device_may_initiate_lpm()
4244 for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { in usb_device_may_initiate_lpm()
4249 intf = udev->actconfig->interface[i]; in usb_device_may_initiate_lpm()
4282 static void usb_enable_link_state(struct usb_hcd *hcd, struct usb_device *udev, in usb_enable_link_state() argument
4290 if (!udev->bos) in usb_enable_link_state()
4293 u1_mel = udev->bos->ss_cap->bU1devExitLat; in usb_enable_link_state()
4294 u2_mel = udev->bos->ss_cap->bU2DevExitLat; in usb_enable_link_state()
4309 timeout = hcd->driver->enable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4316 dev_warn(&udev->dev, "Could not enable %s link state, " in usb_enable_link_state()
4322 if (usb_set_lpm_timeout(udev, state, timeout)) { in usb_enable_link_state()
4327 hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4334 if (udev->actconfig && in usb_enable_link_state()
4335 usb_device_may_initiate_lpm(udev, state)) { in usb_enable_link_state()
4336 if (usb_set_device_initiated_lpm(udev, state, true)) { in usb_enable_link_state()
4341 usb_set_lpm_timeout(udev, state, 0); in usb_enable_link_state()
4342 hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4348 udev->usb3_lpm_u1_enabled = 1; in usb_enable_link_state()
4350 udev->usb3_lpm_u2_enabled = 1; in usb_enable_link_state()
4367 static int usb_disable_link_state(struct usb_hcd *hcd, struct usb_device *udev, in usb_disable_link_state() argument
4375 dev_warn(&udev->dev, "%s: Can't disable non-U1 or U2 state.\n", in usb_disable_link_state()
4380 if (usb_set_lpm_timeout(udev, state, 0)) in usb_disable_link_state()
4383 usb_set_device_initiated_lpm(udev, state, false); in usb_disable_link_state()
4385 if (hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state)) in usb_disable_link_state()
4386 dev_warn(&udev->dev, "Could not disable xHCI %s timeout, " in usb_disable_link_state()
4397 udev->usb3_lpm_u1_enabled = 0; in usb_disable_link_state()
4399 udev->usb3_lpm_u2_enabled = 0; in usb_disable_link_state()
4411 int usb_disable_lpm(struct usb_device *udev) in usb_disable_lpm() argument
4415 if (!udev || !udev->parent || in usb_disable_lpm()
4416 udev->speed < USB_SPEED_SUPER || in usb_disable_lpm()
4417 !udev->lpm_capable || in usb_disable_lpm()
4418 udev->state < USB_STATE_CONFIGURED) in usb_disable_lpm()
4421 hcd = bus_to_hcd(udev->bus); in usb_disable_lpm()
4425 udev->lpm_disable_count++; in usb_disable_lpm()
4426 if ((udev->u1_params.timeout == 0 && udev->u2_params.timeout == 0)) in usb_disable_lpm()
4430 if (usb_disable_link_state(hcd, udev, USB3_LPM_U1)) in usb_disable_lpm()
4432 if (usb_disable_link_state(hcd, udev, USB3_LPM_U2)) in usb_disable_lpm()
4438 usb_enable_lpm(udev); in usb_disable_lpm()
4444 int usb_unlocked_disable_lpm(struct usb_device *udev) in usb_unlocked_disable_lpm() argument
4446 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_unlocked_disable_lpm()
4453 ret = usb_disable_lpm(udev); in usb_unlocked_disable_lpm()
4468 void usb_enable_lpm(struct usb_device *udev) in usb_enable_lpm() argument
4474 if (!udev || !udev->parent || in usb_enable_lpm()
4475 udev->speed < USB_SPEED_SUPER || in usb_enable_lpm()
4476 !udev->lpm_capable || in usb_enable_lpm()
4477 udev->state < USB_STATE_CONFIGURED) in usb_enable_lpm()
4480 udev->lpm_disable_count--; in usb_enable_lpm()
4481 hcd = bus_to_hcd(udev->bus); in usb_enable_lpm()
4489 if (udev->lpm_disable_count > 0) in usb_enable_lpm()
4492 hub = usb_hub_to_struct_hub(udev->parent); in usb_enable_lpm()
4496 port_dev = hub->ports[udev->portnum - 1]; in usb_enable_lpm()
4499 usb_enable_link_state(hcd, udev, USB3_LPM_U1); in usb_enable_lpm()
4502 usb_enable_link_state(hcd, udev, USB3_LPM_U2); in usb_enable_lpm()
4507 void usb_unlocked_enable_lpm(struct usb_device *udev) in usb_unlocked_enable_lpm() argument
4509 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_unlocked_enable_lpm()
4515 usb_enable_lpm(udev); in usb_unlocked_enable_lpm()
4524 struct usb_device *udev = port_dev->child; in hub_usb3_port_prepare_disable() local
4527 if (udev && udev->port_is_suspended && udev->do_remote_wakeup) { in hub_usb3_port_prepare_disable()
4532 ret = usb_disable_remote_wakeup(udev); in hub_usb3_port_prepare_disable()
4535 dev_warn(&udev->dev, in hub_usb3_port_prepare_disable()
4537 udev->do_remote_wakeup = 0; in hub_usb3_port_prepare_disable()
4550 int usb_disable_lpm(struct usb_device *udev) in usb_disable_lpm() argument
4556 void usb_enable_lpm(struct usb_device *udev) { } in usb_enable_lpm() argument
4559 int usb_unlocked_disable_lpm(struct usb_device *udev) in usb_unlocked_disable_lpm() argument
4565 void usb_unlocked_enable_lpm(struct usb_device *udev) { } in usb_unlocked_enable_lpm() argument
4568 int usb_disable_ltm(struct usb_device *udev) in usb_disable_ltm() argument
4574 void usb_enable_ltm(struct usb_device *udev) { } in usb_enable_ltm() argument
4583 static int usb_req_set_sel(struct usb_device *udev) in usb_req_set_sel() argument
4625 int usb_port_disable(struct usb_device *udev) in usb_port_disable() argument
4627 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_disable()
4629 return hub_port_disable(hub, udev->portnum, 0); in usb_port_disable()
4690 void usb_ep0_reinit(struct usb_device *udev) in usb_ep0_reinit() argument
4692 usb_disable_endpoint(udev, 0 + USB_DIR_IN, true); in usb_ep0_reinit()
4693 usb_disable_endpoint(udev, 0 + USB_DIR_OUT, true); in usb_ep0_reinit()
4694 usb_enable_endpoint(udev, &udev->ep0, true); in usb_ep0_reinit()
4701 static int hub_set_address(struct usb_device *udev, int devnum) in hub_set_address() argument
4705 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_set_address()
4706 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in hub_set_address()
4717 if (udev->state == USB_STATE_ADDRESS) in hub_set_address()
4719 if (udev->state != USB_STATE_DEFAULT) in hub_set_address()
4722 retval = hcd->driver->address_device(hcd, udev, timeout_ms); in hub_set_address()
4724 retval = usb_control_msg(udev, usb_sndaddr0pipe(), in hub_set_address()
4728 update_devnum(udev, devnum); in hub_set_address()
4730 usb_set_device_state(udev, USB_STATE_ADDRESS); in hub_set_address()
4731 usb_ep0_reinit(udev); in hub_set_address()
4745 static void hub_set_initial_usb2_lpm_policy(struct usb_device *udev) in hub_set_initial_usb2_lpm_policy() argument
4747 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in hub_set_initial_usb2_lpm_policy()
4750 if (!udev->usb2_hw_lpm_capable || !udev->bos) in hub_set_initial_usb2_lpm_policy()
4754 connect_type = hub->ports[udev->portnum - 1]->connect_type; in hub_set_initial_usb2_lpm_policy()
4756 if ((udev->bos->ext_cap->bmAttributes & cpu_to_le32(USB_BESL_SUPPORT)) || in hub_set_initial_usb2_lpm_policy()
4758 udev->usb2_hw_lpm_allowed = 1; in hub_set_initial_usb2_lpm_policy()
4759 usb_enable_usb2_hardware_lpm(udev); in hub_set_initial_usb2_lpm_policy()
4763 static int hub_enable_device(struct usb_device *udev) in hub_enable_device() argument
4765 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_enable_device()
4769 if (udev->state == USB_STATE_ADDRESS) in hub_enable_device()
4771 if (udev->state != USB_STATE_DEFAULT) in hub_enable_device()
4774 return hcd->driver->enable_device(hcd, udev); in hub_enable_device()
4792 static int get_bMaxPacketSize0(struct usb_device *udev, in get_bMaxPacketSize0() argument
4805 rc = usb_control_msg(udev, usb_rcvaddr0pipe(), in get_bMaxPacketSize0()
4830 udev->speed > USB_SPEED_FULL)) in get_bMaxPacketSize0()
4856 hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, in hub_port_init() argument
4864 enum usb_device_speed oldspeed = udev->speed; in hub_port_init()
4866 int devnum = udev->devnum; in hub_port_init()
4893 retval = hub_port_reset(hub, port1, udev, delay, false); in hub_port_init()
4901 if (oldspeed != USB_SPEED_UNKNOWN && oldspeed != udev->speed && in hub_port_init()
4902 !(oldspeed == USB_SPEED_SUPER && udev->speed > oldspeed)) { in hub_port_init()
4903 dev_dbg(&udev->dev, "device reset changed speed!\n"); in hub_port_init()
4906 oldspeed = udev->speed; in hub_port_init()
4912 switch (udev->speed) { in hub_port_init()
4915 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(512); in hub_port_init()
4918 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(64); in hub_port_init()
4925 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(64); in hub_port_init()
4928 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(8); in hub_port_init()
4935 speed = usb_speed_string(udev->speed); in hub_port_init()
4944 if (udev->bus->controller->driver) in hub_port_init()
4945 driver_name = udev->bus->controller->driver->name; in hub_port_init()
4947 driver_name = udev->bus->sysdev->driver->name; in hub_port_init()
4949 if (udev->speed < USB_SPEED_SUPER) in hub_port_init()
4950 dev_info(&udev->dev, in hub_port_init()
4958 udev->tt = hdev->tt; in hub_port_init()
4959 udev->ttport = hdev->ttport; in hub_port_init()
4960 } else if (udev->speed != USB_SPEED_HIGH in hub_port_init()
4963 dev_err(&udev->dev, "parent hub has no TT\n"); in hub_port_init()
4967 udev->tt = &hub->tt; in hub_port_init()
4968 udev->ttport = port1; in hub_port_init()
4984 do_new_scheme = use_new_scheme(udev, retry_counter, port_dev); in hub_port_init()
4993 retval = hub_enable_device(udev); in hub_port_init()
4995 dev_err(&udev->dev, in hub_port_init()
5001 maxp0 = get_bMaxPacketSize0(udev, buf, in hub_port_init()
5004 maxp0 != udev->descriptor.bMaxPacketSize0) { in hub_port_init()
5005 dev_err(&udev->dev, "device reset changed ep0 maxpacket size!\n"); in hub_port_init()
5010 retval = hub_port_reset(hub, port1, udev, delay, false); in hub_port_init()
5013 if (oldspeed != udev->speed) { in hub_port_init()
5014 dev_dbg(&udev->dev, in hub_port_init()
5021 dev_err(&udev->dev, "device descriptor read/64, error %d\n", in hub_port_init()
5029 retval = hub_set_address(udev, devnum); in hub_port_init()
5036 dev_err(&udev->dev, "device not accepting address %d, error %d\n", in hub_port_init()
5040 if (udev->speed >= USB_SPEED_SUPER) { in hub_port_init()
5041 devnum = udev->devnum; in hub_port_init()
5042 dev_info(&udev->dev, in hub_port_init()
5044 (udev->config) ? "reset" : "new", in hub_port_init()
5045 (udev->speed == USB_SPEED_SUPER_PLUS) ? in hub_port_init()
5047 (udev->ssp_rate == USB_SSP_GEN_2x2) ? in hub_port_init()
5049 (udev->ssp_rate == USB_SSP_GEN_2x1) ? in hub_port_init()
5051 (udev->ssp_rate == USB_SSP_GEN_1x2) ? in hub_port_init()
5066 maxp0 = get_bMaxPacketSize0(udev, buf, 8, retries == 0); in hub_port_init()
5070 dev_err(&udev->dev, in hub_port_init()
5076 if (!initial && maxp0 != udev->descriptor.bMaxPacketSize0) { in hub_port_init()
5077 dev_err(&udev->dev, "device reset changed ep0 maxpacket size!\n"); in hub_port_init()
5082 delay = udev->parent->hub_delay; in hub_port_init()
5083 udev->hub_delay = min_t(u32, delay, in hub_port_init()
5085 retval = usb_set_isoch_delay(udev); in hub_port_init()
5087 dev_dbg(&udev->dev, in hub_port_init()
5104 if (udev->speed >= USB_SPEED_SUPER) { in hub_port_init()
5110 if (usb_endpoint_maxp(&udev->ep0.desc) == i) { in hub_port_init()
5112 } else if (((udev->speed == USB_SPEED_FULL || in hub_port_init()
5113 udev->speed == USB_SPEED_HIGH) && in hub_port_init()
5115 (udev->speed >= USB_SPEED_SUPER && i > 0)) { in hub_port_init()
5117 if (udev->speed == USB_SPEED_FULL) in hub_port_init()
5118 dev_dbg(&udev->dev, "ep0 maxpacket = %d\n", i); in hub_port_init()
5120 dev_warn(&udev->dev, "Using ep0 maxpacket: %d\n", i); in hub_port_init()
5121 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(i); in hub_port_init()
5122 usb_ep0_reinit(udev); in hub_port_init()
5125 dev_err(&udev->dev, "Invalid ep0 maxpacket: %d\n", maxp0); in hub_port_init()
5130 descr = usb_get_device_descriptor(udev); in hub_port_init()
5134 dev_err(&udev->dev, "device descriptor read/all, error %d\n", in hub_port_init()
5139 udev->descriptor = *descr; in hub_port_init()
5150 if ((udev->speed >= USB_SPEED_SUPER) && in hub_port_init()
5151 (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0300)) { in hub_port_init()
5152 dev_err(&udev->dev, "got a wrong device descriptor, warm reset device\n"); in hub_port_init()
5153 hub_port_reset(hub, port1, udev, HUB_BH_RESET_TIME, true); in hub_port_init()
5158 usb_detect_quirks(udev); in hub_port_init()
5160 if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0201) { in hub_port_init()
5161 retval = usb_get_bos_descriptor(udev); in hub_port_init()
5163 udev->lpm_capable = usb_device_supports_lpm(udev); in hub_port_init()
5164 udev->lpm_disable_count = 1; in hub_port_init()
5165 usb_set_lpm_parameters(udev); in hub_port_init()
5166 usb_req_set_sel(udev); in hub_port_init()
5173 hcd->driver->update_device(hcd, udev); in hub_port_init()
5174 hub_set_initial_usb2_lpm_policy(udev); in hub_port_init()
5178 update_devnum(udev, devnum); /* for disconnect processing */ in hub_port_init()
5185 check_highspeed(struct usb_hub *hub, struct usb_device *udev, int port1) in check_highspeed() argument
5190 if (udev->quirks & USB_QUIRK_DEVICE_QUALIFIER) in check_highspeed()
5197 status = usb_get_descriptor(udev, USB_DT_DEVICE_QUALIFIER, 0, in check_highspeed()
5200 dev_info(&udev->dev, "not running at top speed; " in check_highspeed()
5225 struct usb_device *udev = port_dev->child; in hub_power_remaining() local
5229 if (!udev) in hub_power_remaining()
5231 if (hub_is_superspeed(udev)) in hub_power_remaining()
5240 if (udev->actconfig) in hub_power_remaining()
5241 delta = usb_get_max_power(udev, udev->actconfig); in hub_power_remaining()
5242 else if (port1 != udev->bus->otg_port || hdev->parent) in hub_power_remaining()
5260 static int descriptors_changed(struct usb_device *udev, in descriptors_changed() argument
5272 if (memcmp(&udev->descriptor, new_device_descriptor, in descriptors_changed()
5276 if ((old_bos && !udev->bos) || (!old_bos && udev->bos)) in descriptors_changed()
5278 if (udev->bos) { in descriptors_changed()
5279 len = le16_to_cpu(udev->bos->desc->wTotalLength); in descriptors_changed()
5282 if (memcmp(udev->bos->desc, old_bos->desc, len)) in descriptors_changed()
5292 if (udev->serial) in descriptors_changed()
5293 serial_len = strlen(udev->serial) + 1; in descriptors_changed()
5296 for (index = 0; index < udev->descriptor.bNumConfigurations; index++) { in descriptors_changed()
5297 old_length = le16_to_cpu(udev->config[index].desc.wTotalLength); in descriptors_changed()
5306 for (index = 0; index < udev->descriptor.bNumConfigurations; index++) { in descriptors_changed()
5307 old_length = le16_to_cpu(udev->config[index].desc.wTotalLength); in descriptors_changed()
5308 length = usb_get_descriptor(udev, USB_DT_CONFIG, index, buf, in descriptors_changed()
5311 dev_dbg(&udev->dev, "config index %d, error %d\n", in descriptors_changed()
5316 if (memcmp(buf, udev->rawdescriptors[index], old_length) in descriptors_changed()
5318 dev_dbg(&udev->dev, "config index %d changed (#%d)\n", in descriptors_changed()
5328 length = usb_string(udev, udev->descriptor.iSerialNumber, in descriptors_changed()
5331 dev_dbg(&udev->dev, "serial string error %d\n", in descriptors_changed()
5334 } else if (memcmp(buf, udev->serial, length) != 0) { in descriptors_changed()
5335 dev_dbg(&udev->dev, "serial string changed\n"); in descriptors_changed()
5353 struct usb_device *udev = port_dev->child; in hub_port_connect() local
5358 if (udev) { in hub_port_connect()
5360 usb_phy_notify_disconnect(hcd->usb_phy, udev->speed); in hub_port_connect()
5424 udev = usb_alloc_dev(hdev, hdev->bus, port1); in hub_port_connect()
5425 if (!udev) { in hub_port_connect()
5433 usb_set_device_state(udev, USB_STATE_POWERED); in hub_port_connect()
5434 udev->bus_mA = hub->mA_per_port; in hub_port_connect()
5435 udev->level = hdev->level + 1; in hub_port_connect()
5439 udev->speed = USB_SPEED_SUPER; in hub_port_connect()
5441 udev->speed = USB_SPEED_UNKNOWN; in hub_port_connect()
5443 choose_devnum(udev); in hub_port_connect()
5444 if (udev->devnum <= 0) { in hub_port_connect()
5450 status = hub_port_init(hub, udev, port1, i, NULL); in hub_port_connect()
5458 if (udev->quirks & USB_QUIRK_DELAY_INIT) in hub_port_connect()
5467 if (udev->descriptor.bDeviceClass == USB_CLASS_HUB in hub_port_connect()
5468 && udev->bus_mA <= unit_load) { in hub_port_connect()
5471 status = usb_get_std_status(udev, USB_RECIP_DEVICE, 0, in hub_port_connect()
5474 dev_dbg(&udev->dev, "get status %d ?\n", status); in hub_port_connect()
5478 dev_err(&udev->dev, in hub_port_connect()
5494 if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0200 in hub_port_connect()
5495 && udev->speed == USB_SPEED_FULL in hub_port_connect()
5497 check_highspeed(hub, udev, port1); in hub_port_connect()
5515 port_dev->child = udev; in hub_port_connect()
5521 status = usb_new_device(udev); in hub_port_connect()
5531 udev->speed); in hub_port_connect()
5547 usb_ep0_reinit(udev); in hub_port_connect()
5548 release_devnum(udev); in hub_port_connect()
5549 hub_free_dev(udev); in hub_port_connect()
5554 usb_put_dev(udev); in hub_port_connect()
5596 struct usb_device *udev = port_dev->child; in hub_port_connect_change() local
5616 if ((portstatus & USB_PORT_STAT_CONNECTION) && udev && in hub_port_connect_change()
5617 udev->state != USB_STATE_NOTATTACHED) { in hub_port_connect_change()
5625 descr = usb_get_device_descriptor(udev); in hub_port_connect_change()
5627 dev_dbg(&udev->dev, in hub_port_connect_change()
5631 if (descriptors_changed(udev, descr, in hub_port_connect_change()
5632 udev->bos)) { in hub_port_connect_change()
5633 dev_dbg(&udev->dev, in hub_port_connect_change()
5641 } else if (udev->state == USB_STATE_SUSPENDED && in hub_port_connect_change()
5642 udev->persist_enabled) { in hub_port_connect_change()
5647 status = usb_remote_wakeup(udev); in hub_port_connect_change()
5705 struct usb_device *udev = port_dev->child; in port_event() local
5734 && !connect_change && udev) { in port_event()
5795 if ((i++ < DETECT_DISCONNECT_TRIES) && udev) { in port_event()
5802 } else if (!udev || !(portstatus & USB_PORT_STAT_CONNECTION) in port_event()
5803 || udev->state == USB_STATE_NOTATTACHED) { in port_event()
5811 usb_lock_device(udev); in port_event()
5812 usb_reset_device(udev); in port_event()
5813 usb_unlock_device(udev); in port_event()
6090 static int usb_reset_and_verify_device(struct usb_device *udev) in usb_reset_and_verify_device() argument
6092 struct usb_device *parent_hdev = udev->parent; in usb_reset_and_verify_device()
6094 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_reset_and_verify_device()
6098 int port1 = udev->portnum; in usb_reset_and_verify_device()
6100 if (udev->state == USB_STATE_NOTATTACHED || in usb_reset_and_verify_device()
6101 udev->state == USB_STATE_SUSPENDED) { in usb_reset_and_verify_device()
6102 dev_dbg(&udev->dev, "device reset not allowed in state %d\n", in usb_reset_and_verify_device()
6103 udev->state); in usb_reset_and_verify_device()
6115 usb_disable_usb2_hardware_lpm(udev); in usb_reset_and_verify_device()
6117 bos = udev->bos; in usb_reset_and_verify_device()
6118 udev->bos = NULL; in usb_reset_and_verify_device()
6130 usb_ep0_reinit(udev); in usb_reset_and_verify_device()
6131 ret = hub_port_init(parent_hub, udev, port1, i, &descriptor); in usb_reset_and_verify_device()
6141 if (descriptors_changed(udev, &descriptor, bos)) { in usb_reset_and_verify_device()
6142 dev_info(&udev->dev, "device firmware changed\n"); in usb_reset_and_verify_device()
6147 if (!udev->actconfig) in usb_reset_and_verify_device()
6151 ret = usb_hcd_alloc_bandwidth(udev, udev->actconfig, NULL, NULL); in usb_reset_and_verify_device()
6153 dev_warn(&udev->dev, in usb_reset_and_verify_device()
6159 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_reset_and_verify_device()
6161 udev->actconfig->desc.bConfigurationValue, 0, in usb_reset_and_verify_device()
6164 dev_err(&udev->dev, in usb_reset_and_verify_device()
6166 udev->actconfig->desc.bConfigurationValue, ret); in usb_reset_and_verify_device()
6171 usb_set_device_state(udev, USB_STATE_CONFIGURED); in usb_reset_and_verify_device()
6179 for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { in usb_reset_and_verify_device()
6180 struct usb_host_config *config = udev->actconfig; in usb_reset_and_verify_device()
6186 usb_disable_interface(udev, intf, true); in usb_reset_and_verify_device()
6187 usb_enable_interface(udev, intf, true); in usb_reset_and_verify_device()
6195 ret = usb_set_interface(udev, desc->bInterfaceNumber, in usb_reset_and_verify_device()
6200 dev_err(&udev->dev, "failed to restore interface %d " in usb_reset_and_verify_device()
6214 usb_enable_usb2_hardware_lpm(udev); in usb_reset_and_verify_device()
6215 usb_unlocked_enable_lpm(udev); in usb_reset_and_verify_device()
6216 usb_enable_ltm(udev); in usb_reset_and_verify_device()
6217 usb_release_bos_descriptor(udev); in usb_reset_and_verify_device()
6218 udev->bos = bos; in usb_reset_and_verify_device()
6222 usb_release_bos_descriptor(udev); in usb_reset_and_verify_device()
6223 udev->bos = bos; in usb_reset_and_verify_device()
6254 int usb_reset_device(struct usb_device *udev) in usb_reset_device() argument
6260 struct usb_host_config *config = udev->actconfig; in usb_reset_device()
6261 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_reset_device()
6263 if (udev->state == USB_STATE_NOTATTACHED) { in usb_reset_device()
6264 dev_dbg(&udev->dev, "device reset not allowed in state %d\n", in usb_reset_device()
6265 udev->state); in usb_reset_device()
6269 if (!udev->parent) { in usb_reset_device()
6271 dev_dbg(&udev->dev, "%s for root hub!\n", __func__); in usb_reset_device()
6275 if (udev->reset_in_progress) in usb_reset_device()
6277 udev->reset_in_progress = 1; in usb_reset_device()
6279 port_dev = hub->ports[udev->portnum - 1]; in usb_reset_device()
6293 usb_autoresume_device(udev); in usb_reset_device()
6315 ret = usb_reset_and_verify_device(udev); in usb_reset_device()
6338 usb_unbind_and_rebind_marked_interfaces(udev); in usb_reset_device()
6341 usb_autosuspend_device(udev); in usb_reset_device()
6343 udev->reset_in_progress = 0; in usb_reset_device()