Lines Matching refs:udev
121 static int usb_reset_and_verify_device(struct usb_device *udev);
148 int usb_device_supports_lpm(struct usb_device *udev) in usb_device_supports_lpm() argument
151 if (udev->quirks & USB_QUIRK_NO_LPM) in usb_device_supports_lpm()
155 if (!udev->bos) in usb_device_supports_lpm()
161 if (udev->speed == USB_SPEED_HIGH || udev->speed == USB_SPEED_FULL) { in usb_device_supports_lpm()
162 if (udev->bos->ext_cap && in usb_device_supports_lpm()
164 le32_to_cpu(udev->bos->ext_cap->bmAttributes))) in usb_device_supports_lpm()
174 if (!udev->bos->ss_cap) { in usb_device_supports_lpm()
175 dev_info(&udev->dev, "No LPM exit latency info found, disabling LPM.\n"); in usb_device_supports_lpm()
179 if (udev->bos->ss_cap->bU1devExitLat == 0 && in usb_device_supports_lpm()
180 udev->bos->ss_cap->bU2DevExitLat == 0) { in usb_device_supports_lpm()
181 if (udev->parent) in usb_device_supports_lpm()
182 dev_info(&udev->dev, "LPM exit latency is zeroed, disabling LPM.\n"); in usb_device_supports_lpm()
184 dev_info(&udev->dev, "We don't know the algorithms for LPM for this host, disabling LPM.\n"); in usb_device_supports_lpm()
188 if (!udev->parent || udev->parent->lpm_capable) in usb_device_supports_lpm()
198 static void usb_set_lpm_mel(struct usb_device *udev, in usb_set_lpm_mel() argument
245 static void usb_set_lpm_pel(struct usb_device *udev, in usb_set_lpm_pel() argument
299 static void usb_set_lpm_sel(struct usb_device *udev, in usb_set_lpm_sel() argument
309 for (parent = udev->parent, num_hubs = 0; parent->parent; in usb_set_lpm_sel()
322 static void usb_set_lpm_parameters(struct usb_device *udev) in usb_set_lpm_parameters() argument
331 if (!udev->lpm_capable || udev->speed < USB_SPEED_SUPER) in usb_set_lpm_parameters()
335 if (!udev->bos) in usb_set_lpm_parameters()
338 hub = usb_hub_to_struct_hub(udev->parent); in usb_set_lpm_parameters()
345 udev_u1_del = udev->bos->ss_cap->bU1devExitLat; in usb_set_lpm_parameters()
346 udev_u2_del = le16_to_cpu(udev->bos->ss_cap->bU2DevExitLat); in usb_set_lpm_parameters()
347 hub_u1_del = udev->parent->bos->ss_cap->bU1devExitLat; in usb_set_lpm_parameters()
348 hub_u2_del = le16_to_cpu(udev->parent->bos->ss_cap->bU2DevExitLat); in usb_set_lpm_parameters()
350 usb_set_lpm_mel(udev, &udev->u1_params, udev_u1_del, in usb_set_lpm_parameters()
351 hub, &udev->parent->u1_params, hub_u1_del); in usb_set_lpm_parameters()
353 usb_set_lpm_mel(udev, &udev->u2_params, udev_u2_del, in usb_set_lpm_parameters()
354 hub, &udev->parent->u2_params, hub_u2_del); in usb_set_lpm_parameters()
375 usb_set_lpm_pel(udev, &udev->u1_params, udev_u1_del, in usb_set_lpm_parameters()
376 hub, &udev->parent->u1_params, hub_u1_del, in usb_set_lpm_parameters()
384 usb_set_lpm_pel(udev, &udev->u2_params, udev_u2_del, in usb_set_lpm_parameters()
385 hub, &udev->parent->u2_params, hub_u2_del, in usb_set_lpm_parameters()
389 usb_set_lpm_sel(udev, &udev->u1_params); in usb_set_lpm_parameters()
390 usb_set_lpm_sel(udev, &udev->u2_params); in usb_set_lpm_parameters()
902 struct usb_device *udev = urb->dev; in usb_hub_clear_tt_buffer() local
904 struct usb_tt *tt = udev->tt; in usb_hub_clear_tt_buffer()
914 dev_err(&udev->dev, "can't save CLEAR_TT_BUFFER state\n"); in usb_hub_clear_tt_buffer()
920 clear->tt = tt->multi ? udev->ttport : 1; in usb_hub_clear_tt_buffer()
922 clear->devinfo |= ((u16)udev->devaddr) << 4; in usb_hub_clear_tt_buffer()
930 clear->hcd = bus_to_hcd(udev->bus); in usb_hub_clear_tt_buffer()
1030 int usb_remove_device(struct usb_device *udev) in usb_remove_device() argument
1036 if (!udev->parent) /* Can't remove a root hub */ in usb_remove_device()
1038 hub = usb_hub_to_struct_hub(udev->parent); in usb_remove_device()
1045 set_bit(udev->portnum, hub->removed_bits); in usb_remove_device()
1046 hub_port_logical_disconnect(hub, udev->portnum); in usb_remove_device()
1160 struct usb_device *udev = port_dev->child; in hub_activate() local
1168 if (udev || (portstatus & USB_PORT_STAT_CONNECTION)) in hub_activate()
1181 !udev || in hub_activate()
1182 udev->state == USB_STATE_NOTATTACHED)) { in hub_activate()
1239 if (!udev || udev->state == USB_STATE_NOTATTACHED) { in hub_activate()
1246 if (udev || (portstatus & USB_PORT_STAT_CONNECTION) || in hub_activate()
1268 } else if (udev->persist_enabled) { in hub_activate()
1270 udev->reset_resume = 1; in hub_activate()
1280 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in hub_activate()
2042 bool usb_device_is_owned(struct usb_device *udev) in usb_device_is_owned() argument
2046 if (udev->state == USB_STATE_NOTATTACHED || !udev->parent) in usb_device_is_owned()
2048 hub = usb_hub_to_struct_hub(udev->parent); in usb_device_is_owned()
2049 return !!hub->ports[udev->portnum - 1]->port_owner; in usb_device_is_owned()
2052 static void update_port_device_state(struct usb_device *udev) in update_port_device_state() argument
2057 if (udev->parent) { in update_port_device_state()
2058 hub = usb_hub_to_struct_hub(udev->parent); in update_port_device_state()
2059 port_dev = hub->ports[udev->portnum - 1]; in update_port_device_state()
2060 WRITE_ONCE(port_dev->state, udev->state); in update_port_device_state()
2065 static void recursively_mark_NOTATTACHED(struct usb_device *udev) in recursively_mark_NOTATTACHED() argument
2067 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in recursively_mark_NOTATTACHED()
2070 for (i = 0; i < udev->maxchild; ++i) { in recursively_mark_NOTATTACHED()
2074 if (udev->state == USB_STATE_SUSPENDED) in recursively_mark_NOTATTACHED()
2075 udev->active_duration -= jiffies; in recursively_mark_NOTATTACHED()
2076 udev->state = USB_STATE_NOTATTACHED; in recursively_mark_NOTATTACHED()
2077 update_port_device_state(udev); in recursively_mark_NOTATTACHED()
2101 void usb_set_device_state(struct usb_device *udev, in usb_set_device_state() argument
2108 if (udev->state == USB_STATE_NOTATTACHED) in usb_set_device_state()
2115 if (udev->parent) { in usb_set_device_state()
2116 if (udev->state == USB_STATE_SUSPENDED in usb_set_device_state()
2120 wakeup = (udev->quirks & in usb_set_device_state()
2122 udev->actconfig->desc.bmAttributes & in usb_set_device_state()
2127 if (udev->state == USB_STATE_SUSPENDED && in usb_set_device_state()
2129 udev->active_duration -= jiffies; in usb_set_device_state()
2131 udev->state != USB_STATE_SUSPENDED) in usb_set_device_state()
2132 udev->active_duration += jiffies; in usb_set_device_state()
2133 udev->state = new_state; in usb_set_device_state()
2134 update_port_device_state(udev); in usb_set_device_state()
2136 recursively_mark_NOTATTACHED(udev); in usb_set_device_state()
2139 device_set_wakeup_capable(&udev->dev, wakeup); in usb_set_device_state()
2156 static void choose_devnum(struct usb_device *udev) in choose_devnum() argument
2159 struct usb_bus *bus = udev->bus; in choose_devnum()
2172 udev->devnum = devnum; in choose_devnum()
2177 static void release_devnum(struct usb_device *udev) in release_devnum() argument
2179 if (udev->devnum > 0) { in release_devnum()
2180 clear_bit(udev->devnum, udev->bus->devmap.devicemap); in release_devnum()
2181 udev->devnum = -1; in release_devnum()
2185 static void update_devnum(struct usb_device *udev, int devnum) in update_devnum() argument
2187 udev->devnum = devnum; in update_devnum()
2188 if (!udev->devaddr) in update_devnum()
2189 udev->devaddr = (u8)devnum; in update_devnum()
2192 static void hub_free_dev(struct usb_device *udev) in hub_free_dev() argument
2194 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_free_dev()
2197 if (hcd->driver->free_dev && udev->parent) in hub_free_dev()
2198 hcd->driver->free_dev(hcd, udev); in hub_free_dev()
2201 static void hub_disconnect_children(struct usb_device *udev) in hub_disconnect_children() argument
2203 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in hub_disconnect_children()
2207 for (i = 0; i < udev->maxchild; i++) { in hub_disconnect_children()
2233 struct usb_device *udev = *pdev; in usb_disconnect() local
2241 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in usb_disconnect()
2242 dev_info(&udev->dev, "USB disconnect, device number %d\n", in usb_disconnect()
2243 udev->devnum); in usb_disconnect()
2249 pm_runtime_barrier(&udev->dev); in usb_disconnect()
2251 usb_lock_device(udev); in usb_disconnect()
2253 hub_disconnect_children(udev); in usb_disconnect()
2259 dev_dbg(&udev->dev, "unregistering device\n"); in usb_disconnect()
2260 usb_disable_device(udev, 0); in usb_disconnect()
2261 usb_hcd_synchronize_unlinks(udev); in usb_disconnect()
2263 if (udev->parent) { in usb_disconnect()
2264 port1 = udev->portnum; in usb_disconnect()
2265 hub = usb_hub_to_struct_hub(udev->parent); in usb_disconnect()
2268 sysfs_remove_link(&udev->dev.kobj, "port"); in usb_disconnect()
2279 usb_remove_ep_devs(&udev->ep0); in usb_disconnect()
2280 usb_unlock_device(udev); in usb_disconnect()
2286 device_del(&udev->dev); in usb_disconnect()
2291 release_devnum(udev); in usb_disconnect()
2301 hub_free_dev(udev); in usb_disconnect()
2303 put_device(&udev->dev); in usb_disconnect()
2307 static void show_string(struct usb_device *udev, char *id, char *string) in show_string() argument
2311 dev_info(&udev->dev, "%s: %s\n", id, string); in show_string()
2314 static void announce_device(struct usb_device *udev) in announce_device() argument
2316 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); in announce_device()
2318 dev_info(&udev->dev, in announce_device()
2320 le16_to_cpu(udev->descriptor.idVendor), in announce_device()
2321 le16_to_cpu(udev->descriptor.idProduct), in announce_device()
2323 dev_info(&udev->dev, in announce_device()
2325 udev->descriptor.iManufacturer, in announce_device()
2326 udev->descriptor.iProduct, in announce_device()
2327 udev->descriptor.iSerialNumber); in announce_device()
2328 show_string(udev, "Product", udev->product); in announce_device()
2329 show_string(udev, "Manufacturer", udev->manufacturer); in announce_device()
2330 show_string(udev, "SerialNumber", udev->serial); in announce_device()
2333 static inline void announce_device(struct usb_device *udev) { } in announce_device() argument
2345 static int usb_enumerate_device_otg(struct usb_device *udev) in usb_enumerate_device_otg() argument
2355 if (!udev->bus->is_b_host in usb_enumerate_device_otg()
2356 && udev->config in usb_enumerate_device_otg()
2357 && udev->parent == udev->bus->root_hub) { in usb_enumerate_device_otg()
2359 struct usb_bus *bus = udev->bus; in usb_enumerate_device_otg()
2360 unsigned port1 = udev->portnum; in usb_enumerate_device_otg()
2363 err = __usb_get_extra_descriptor(udev->rawdescriptors[0], in usb_enumerate_device_otg()
2364 le16_to_cpu(udev->config[0].desc.wTotalLength), in usb_enumerate_device_otg()
2369 dev_info(&udev->dev, "Dual-Role OTG device on %sHNP port\n", in usb_enumerate_device_otg()
2375 err = usb_control_msg(udev, in usb_enumerate_device_otg()
2376 usb_sndctrlpipe(udev, 0), in usb_enumerate_device_otg()
2386 dev_err(&udev->dev, "can't set HNP mode: %d\n", in usb_enumerate_device_otg()
2393 err = usb_control_msg(udev, in usb_enumerate_device_otg()
2394 usb_sndctrlpipe(udev, 0), in usb_enumerate_device_otg()
2400 dev_err(&udev->dev, in usb_enumerate_device_otg()
2423 static int usb_enumerate_device(struct usb_device *udev) in usb_enumerate_device() argument
2426 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_enumerate_device()
2428 if (udev->config == NULL) { in usb_enumerate_device()
2429 err = usb_get_configuration(udev); in usb_enumerate_device()
2432 dev_err(&udev->dev, "can't read configurations, error %d\n", in usb_enumerate_device()
2439 udev->product = usb_cache_string(udev, udev->descriptor.iProduct); in usb_enumerate_device()
2440 udev->manufacturer = usb_cache_string(udev, in usb_enumerate_device()
2441 udev->descriptor.iManufacturer); in usb_enumerate_device()
2442 udev->serial = usb_cache_string(udev, udev->descriptor.iSerialNumber); in usb_enumerate_device()
2444 err = usb_enumerate_device_otg(udev); in usb_enumerate_device()
2449 !is_targeted(udev)) { in usb_enumerate_device()
2453 if (IS_ENABLED(CONFIG_USB_OTG) && (udev->bus->b_hnp_enable in usb_enumerate_device()
2454 || udev->bus->is_b_host)) { in usb_enumerate_device()
2455 err = usb_port_suspend(udev, PMSG_AUTO_SUSPEND); in usb_enumerate_device()
2457 dev_dbg(&udev->dev, "HNP fail, %d\n", err); in usb_enumerate_device()
2462 usb_detect_interface_quirks(udev); in usb_enumerate_device()
2467 static void set_usb_port_removable(struct usb_device *udev) in set_usb_port_removable() argument
2469 struct usb_device *hdev = udev->parent; in set_usb_port_removable()
2471 u8 port = udev->portnum; in set_usb_port_removable()
2475 dev_set_removable(&udev->dev, DEVICE_REMOVABLE_UNKNOWN); in set_usb_port_removable()
2480 hub = usb_hub_to_struct_hub(udev->parent); in set_usb_port_removable()
2486 switch (hub->ports[udev->portnum - 1]->connect_type) { in set_usb_port_removable()
2488 dev_set_removable(&udev->dev, DEVICE_REMOVABLE); in set_usb_port_removable()
2492 dev_set_removable(&udev->dev, DEVICE_FIXED); in set_usb_port_removable()
2517 dev_set_removable(&udev->dev, DEVICE_REMOVABLE); in set_usb_port_removable()
2519 dev_set_removable(&udev->dev, DEVICE_FIXED); in set_usb_port_removable()
2544 int usb_new_device(struct usb_device *udev) in usb_new_device() argument
2548 if (udev->parent) { in usb_new_device()
2553 device_init_wakeup(&udev->dev, 0); in usb_new_device()
2557 pm_runtime_set_active(&udev->dev); in usb_new_device()
2558 pm_runtime_get_noresume(&udev->dev); in usb_new_device()
2559 pm_runtime_use_autosuspend(&udev->dev); in usb_new_device()
2560 pm_runtime_enable(&udev->dev); in usb_new_device()
2565 usb_disable_autosuspend(udev); in usb_new_device()
2567 err = usb_enumerate_device(udev); /* Read descriptors */ in usb_new_device()
2570 dev_dbg(&udev->dev, "udev %d, busnum %d, minor = %d\n", in usb_new_device()
2571 udev->devnum, udev->bus->busnum, in usb_new_device()
2572 (((udev->bus->busnum-1) * 128) + (udev->devnum-1))); in usb_new_device()
2574 udev->dev.devt = MKDEV(USB_DEVICE_MAJOR, in usb_new_device()
2575 (((udev->bus->busnum-1) * 128) + (udev->devnum-1))); in usb_new_device()
2578 announce_device(udev); in usb_new_device()
2580 if (udev->serial) in usb_new_device()
2581 add_device_randomness(udev->serial, strlen(udev->serial)); in usb_new_device()
2582 if (udev->product) in usb_new_device()
2583 add_device_randomness(udev->product, strlen(udev->product)); in usb_new_device()
2584 if (udev->manufacturer) in usb_new_device()
2585 add_device_randomness(udev->manufacturer, in usb_new_device()
2586 strlen(udev->manufacturer)); in usb_new_device()
2588 device_enable_async_suspend(&udev->dev); in usb_new_device()
2591 set_usb_port_removable(udev); in usb_new_device()
2597 err = device_add(&udev->dev); in usb_new_device()
2599 dev_err(&udev->dev, "can't device_add, error %d\n", err); in usb_new_device()
2604 if (udev->parent) { in usb_new_device()
2605 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_new_device()
2606 int port1 = udev->portnum; in usb_new_device()
2609 err = sysfs_create_link(&udev->dev.kobj, in usb_new_device()
2615 &udev->dev.kobj, "device"); in usb_new_device()
2617 sysfs_remove_link(&udev->dev.kobj, "port"); in usb_new_device()
2625 (void) usb_create_ep_devs(&udev->dev, &udev->ep0, udev); in usb_new_device()
2626 usb_mark_last_busy(udev); in usb_new_device()
2627 pm_runtime_put_sync_autosuspend(&udev->dev); in usb_new_device()
2631 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in usb_new_device()
2632 pm_runtime_disable(&udev->dev); in usb_new_device()
2633 pm_runtime_set_suspended(&udev->dev); in usb_new_device()
2805 static bool use_new_scheme(struct usb_device *udev, int retry, in use_new_scheme() argument
2819 if (udev->speed >= USB_SPEED_SUPER) in use_new_scheme()
2852 struct usb_device *udev, unsigned int delay, bool warm) in hub_port_wait_reset() argument
2921 if (!udev) in hub_port_wait_reset()
2926 udev->rx_lanes = USB_EXT_PORT_RX_LANES(ext_portstatus) + 1; in hub_port_wait_reset()
2927 udev->tx_lanes = USB_EXT_PORT_TX_LANES(ext_portstatus) + 1; in hub_port_wait_reset()
2928 udev->ssp_rate = get_port_ssp_rate(hub->hdev, ext_portstatus); in hub_port_wait_reset()
2930 udev->rx_lanes = 1; in hub_port_wait_reset()
2931 udev->tx_lanes = 1; in hub_port_wait_reset()
2932 udev->ssp_rate = USB_SSP_GEN_UNKNOWN; in hub_port_wait_reset()
2934 if (udev->ssp_rate != USB_SSP_GEN_UNKNOWN) in hub_port_wait_reset()
2935 udev->speed = USB_SPEED_SUPER_PLUS; in hub_port_wait_reset()
2937 udev->speed = USB_SPEED_SUPER; in hub_port_wait_reset()
2939 udev->speed = USB_SPEED_HIGH; in hub_port_wait_reset()
2941 udev->speed = USB_SPEED_LOW; in hub_port_wait_reset()
2943 udev->speed = USB_SPEED_FULL; in hub_port_wait_reset()
2949 struct usb_device *udev, unsigned int delay, bool warm) in hub_port_reset() argument
2991 status = hub_port_wait_reset(hub, port1, udev, delay, in hub_port_reset()
3016 if (udev) in hub_port_reset()
3066 if (udev) { in hub_port_reset()
3067 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_port_reset()
3069 update_devnum(udev, 0); in hub_port_reset()
3074 hcd->driver->reset_device(hcd, udev); in hub_port_reset()
3076 usb_set_device_state(udev, USB_STATE_DEFAULT); in hub_port_reset()
3079 if (udev) in hub_port_reset()
3080 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in hub_port_reset()
3183 static int check_port_resume_type(struct usb_device *udev, in check_port_resume_type() argument
3192 if (status == 0 && udev->reset_resume in check_port_resume_type()
3214 else if (!(portstatus & USB_PORT_STAT_ENABLE) && !udev->reset_resume) { in check_port_resume_type()
3215 if (udev->persist_enabled) in check_port_resume_type()
3216 udev->reset_resume = 1; in check_port_resume_type()
3224 } else if (udev->reset_resume) { in check_port_resume_type()
3247 int usb_disable_ltm(struct usb_device *udev) in usb_disable_ltm() argument
3249 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_disable_ltm()
3253 !usb_device_supports_ltm(udev)) in usb_disable_ltm()
3259 if (!udev->actconfig) in usb_disable_ltm()
3262 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_ltm()
3269 void usb_enable_ltm(struct usb_device *udev) in usb_enable_ltm() argument
3271 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_enable_ltm()
3275 !usb_device_supports_ltm(udev)) in usb_enable_ltm()
3281 if (!udev->actconfig) in usb_enable_ltm()
3284 usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_ltm()
3301 static int usb_enable_remote_wakeup(struct usb_device *udev) in usb_enable_remote_wakeup() argument
3303 if (udev->speed < USB_SPEED_SUPER) in usb_enable_remote_wakeup()
3304 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_remote_wakeup()
3309 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_remote_wakeup()
3327 static int usb_disable_remote_wakeup(struct usb_device *udev) in usb_disable_remote_wakeup() argument
3329 if (udev->speed < USB_SPEED_SUPER) in usb_disable_remote_wakeup()
3330 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_remote_wakeup()
3335 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_remote_wakeup()
3342 unsigned usb_wakeup_enabled_descendants(struct usb_device *udev) in usb_wakeup_enabled_descendants() argument
3344 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in usb_wakeup_enabled_descendants()
3346 return udev->do_remote_wakeup + in usb_wakeup_enabled_descendants()
3399 int usb_port_suspend(struct usb_device *udev, pm_message_t msg) in usb_port_suspend() argument
3401 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_suspend()
3402 struct usb_port *port_dev = hub->ports[udev->portnum - 1]; in usb_port_suspend()
3403 int port1 = udev->portnum; in usb_port_suspend()
3415 if (udev->do_remote_wakeup) { in usb_port_suspend()
3416 status = usb_enable_remote_wakeup(udev); in usb_port_suspend()
3418 dev_dbg(&udev->dev, "won't remote wakeup, status %d\n", in usb_port_suspend()
3427 usb_disable_usb2_hardware_lpm(udev); in usb_port_suspend()
3429 if (usb_disable_ltm(udev)) { in usb_port_suspend()
3430 dev_err(&udev->dev, "Failed to disable LTM before suspend\n"); in usb_port_suspend()
3451 else if (PMSG_IS_AUTO(msg) || usb_wakeup_enabled_descendants(udev) > 0) in usb_port_suspend()
3482 usb_enable_ltm(udev); in usb_port_suspend()
3485 usb_enable_usb2_hardware_lpm(udev); in usb_port_suspend()
3487 if (udev->do_remote_wakeup) in usb_port_suspend()
3488 (void) usb_disable_remote_wakeup(udev); in usb_port_suspend()
3496 dev_dbg(&udev->dev, "usb %ssuspend, wakeup %d\n", in usb_port_suspend()
3498 udev->do_remote_wakeup); in usb_port_suspend()
3500 udev->port_is_suspended = 1; in usb_port_suspend()
3505 usb_set_device_state(udev, USB_STATE_SUSPENDED); in usb_port_suspend()
3508 if (status == 0 && !udev->do_remote_wakeup && udev->persist_enabled in usb_port_suspend()
3529 static int finish_port_resume(struct usb_device *udev) in finish_port_resume() argument
3535 dev_dbg(&udev->dev, "%s\n", in finish_port_resume()
3536 udev->reset_resume ? "finish reset-resume" : "finish resume"); in finish_port_resume()
3543 usb_set_device_state(udev, udev->actconfig in finish_port_resume()
3552 if (udev->reset_resume) { in finish_port_resume()
3560 if (udev->quirks & USB_QUIRK_RESET) in finish_port_resume()
3563 status = usb_reset_and_verify_device(udev); in finish_port_resume()
3572 status = usb_get_std_status(udev, USB_RECIP_DEVICE, 0, &devstatus); in finish_port_resume()
3575 if (status && !udev->reset_resume && udev->persist_enabled) { in finish_port_resume()
3576 dev_dbg(&udev->dev, "retry with reset-resume\n"); in finish_port_resume()
3577 udev->reset_resume = 1; in finish_port_resume()
3583 dev_dbg(&udev->dev, "gone after usb resume? status %d\n", in finish_port_resume()
3591 } else if (udev->actconfig && !udev->reset_resume) { in finish_port_resume()
3592 if (udev->speed < USB_SPEED_SUPER) { in finish_port_resume()
3594 status = usb_disable_remote_wakeup(udev); in finish_port_resume()
3596 status = usb_get_std_status(udev, USB_RECIP_INTERFACE, 0, in finish_port_resume()
3600 status = usb_disable_remote_wakeup(udev); in finish_port_resume()
3604 dev_dbg(&udev->dev, in finish_port_resume()
3636 static int wait_for_connected(struct usb_device *udev, in wait_for_connected() argument
3653 dev_dbg(&udev->dev, "Waited %dms for CONNECT\n", delay_ms); in wait_for_connected()
3691 int usb_port_resume(struct usb_device *udev, pm_message_t msg) in usb_port_resume() argument
3693 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_resume()
3694 struct usb_port *port_dev = hub->ports[udev->portnum - 1]; in usb_port_resume()
3695 int port1 = udev->portnum; in usb_port_resume()
3702 dev_dbg(&udev->dev, "can't resume usb port, status %d\n", in usb_port_resume()
3714 pm_wakeup_event(&udev->dev, 0); in usb_port_resume()
3728 dev_dbg(&udev->dev, "usb %sresume\n", in usb_port_resume()
3741 udev->port_is_suspended = 0; in usb_port_resume()
3756 if (udev->persist_enabled) in usb_port_resume()
3757 status = wait_for_connected(udev, hub, port1, &portchange, in usb_port_resume()
3760 status = check_port_resume_type(udev, in usb_port_resume()
3763 status = finish_port_resume(udev); in usb_port_resume()
3765 dev_dbg(&udev->dev, "can't resume, status %d\n", status); in usb_port_resume()
3769 usb_enable_usb2_hardware_lpm(udev); in usb_port_resume()
3772 usb_enable_ltm(udev); in usb_port_resume()
3780 int usb_remote_wakeup(struct usb_device *udev) in usb_remote_wakeup() argument
3784 usb_lock_device(udev); in usb_remote_wakeup()
3785 if (udev->state == USB_STATE_SUSPENDED) { in usb_remote_wakeup()
3786 dev_dbg(&udev->dev, "usb %sresume\n", "wakeup-"); in usb_remote_wakeup()
3787 status = usb_autoresume_device(udev); in usb_remote_wakeup()
3790 usb_autosuspend_device(udev); in usb_remote_wakeup()
3793 usb_unlock_device(udev); in usb_remote_wakeup()
3804 struct usb_device *udev; in hub_handle_remote_wakeup() local
3810 udev = port_dev->child; in hub_handle_remote_wakeup()
3817 if (!udev || udev->state != USB_STATE_SUSPENDED || in hub_handle_remote_wakeup()
3824 if (udev) { in hub_handle_remote_wakeup()
3829 ret = usb_remote_wakeup(udev); in hub_handle_remote_wakeup()
3869 struct usb_device *udev = port_dev->child; in hub_suspend() local
3871 if (udev && udev->can_submit) { in hub_suspend()
3873 dev_name(&udev->dev)); in hub_suspend()
3877 if (udev) in hub_suspend()
3879 usb_wakeup_enabled_descendants(udev); in hub_suspend()
3914 struct usb_device *udev; in report_wakeup_requests() local
3936 udev = hub->ports[i]->child; in report_wakeup_requests()
3937 if (udev) in report_wakeup_requests()
3938 pm_wakeup_event(&udev->dev, 0); in report_wakeup_requests()
4004 static int usb_req_set_sel(struct usb_device *udev) in usb_req_set_sel() argument
4013 if (!udev->parent || udev->speed < USB_SPEED_SUPER || !udev->lpm_capable) in usb_req_set_sel()
4017 u1_sel = DIV_ROUND_UP(udev->u1_params.sel, 1000); in usb_req_set_sel()
4018 u1_pel = DIV_ROUND_UP(udev->u1_params.pel, 1000); in usb_req_set_sel()
4019 u2_sel = DIV_ROUND_UP(udev->u2_params.sel, 1000); in usb_req_set_sel()
4020 u2_pel = DIV_ROUND_UP(udev->u2_params.pel, 1000); in usb_req_set_sel()
4034 dev_dbg(&udev->dev, "Device-initiated U1/U2 disabled due to long SEL or PEL\n"); in usb_req_set_sel()
4052 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_req_set_sel()
4061 udev->lpm_devinit_allow = 1; in usb_req_set_sel()
4069 static int usb_set_device_initiated_lpm(struct usb_device *udev, in usb_set_device_initiated_lpm() argument
4083 dev_warn(&udev->dev, "%s: Can't %s non-U1 or U2 state.\n", in usb_set_device_initiated_lpm()
4088 if (udev->state != USB_STATE_CONFIGURED) { in usb_set_device_initiated_lpm()
4089 dev_dbg(&udev->dev, "%s: Can't %s %s state " in usb_set_device_initiated_lpm()
4101 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_set_device_initiated_lpm()
4108 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_set_device_initiated_lpm()
4116 dev_warn(&udev->dev, "%s of device-initiated %s failed.\n", in usb_set_device_initiated_lpm()
4124 static int usb_set_lpm_timeout(struct usb_device *udev, in usb_set_lpm_timeout() argument
4138 dev_warn(&udev->dev, "%s: Can't set timeout for non-U1 or U2 state.\n", in usb_set_lpm_timeout()
4145 dev_warn(&udev->dev, "Failed to set %s timeout to 0x%x, " in usb_set_lpm_timeout()
4151 ret = set_port_feature(udev->parent, in usb_set_lpm_timeout()
4152 USB_PORT_LPM_TIMEOUT(timeout) | udev->portnum, in usb_set_lpm_timeout()
4155 dev_warn(&udev->dev, "Failed to set %s timeout to 0x%x," in usb_set_lpm_timeout()
4161 udev->u1_params.timeout = timeout; in usb_set_lpm_timeout()
4163 udev->u2_params.timeout = timeout; in usb_set_lpm_timeout()
4172 static bool usb_device_may_initiate_lpm(struct usb_device *udev, in usb_device_may_initiate_lpm() argument
4178 if (!udev->lpm_devinit_allow) in usb_device_may_initiate_lpm()
4182 sel = DIV_ROUND_UP(udev->u1_params.sel, 1000); in usb_device_may_initiate_lpm()
4184 sel = DIV_ROUND_UP(udev->u2_params.sel, 1000); in usb_device_may_initiate_lpm()
4188 for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { in usb_device_may_initiate_lpm()
4193 intf = udev->actconfig->interface[i]; in usb_device_may_initiate_lpm()
4226 static void usb_enable_link_state(struct usb_hcd *hcd, struct usb_device *udev, in usb_enable_link_state() argument
4234 if (!udev->bos) in usb_enable_link_state()
4237 u1_mel = udev->bos->ss_cap->bU1devExitLat; in usb_enable_link_state()
4238 u2_mel = udev->bos->ss_cap->bU2DevExitLat; in usb_enable_link_state()
4253 timeout = hcd->driver->enable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4260 dev_warn(&udev->dev, "Could not enable %s link state, " in usb_enable_link_state()
4266 if (usb_set_lpm_timeout(udev, state, timeout)) { in usb_enable_link_state()
4271 hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4278 if (udev->actconfig && in usb_enable_link_state()
4279 usb_device_may_initiate_lpm(udev, state)) { in usb_enable_link_state()
4280 if (usb_set_device_initiated_lpm(udev, state, true)) { in usb_enable_link_state()
4285 usb_set_lpm_timeout(udev, state, 0); in usb_enable_link_state()
4286 hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4292 udev->usb3_lpm_u1_enabled = 1; in usb_enable_link_state()
4294 udev->usb3_lpm_u2_enabled = 1; in usb_enable_link_state()
4311 static int usb_disable_link_state(struct usb_hcd *hcd, struct usb_device *udev, in usb_disable_link_state() argument
4319 dev_warn(&udev->dev, "%s: Can't disable non-U1 or U2 state.\n", in usb_disable_link_state()
4324 if (usb_set_lpm_timeout(udev, state, 0)) in usb_disable_link_state()
4327 usb_set_device_initiated_lpm(udev, state, false); in usb_disable_link_state()
4329 if (hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state)) in usb_disable_link_state()
4330 dev_warn(&udev->dev, "Could not disable xHCI %s timeout, " in usb_disable_link_state()
4341 udev->usb3_lpm_u1_enabled = 0; in usb_disable_link_state()
4343 udev->usb3_lpm_u2_enabled = 0; in usb_disable_link_state()
4355 int usb_disable_lpm(struct usb_device *udev) in usb_disable_lpm() argument
4359 if (!udev || !udev->parent || in usb_disable_lpm()
4360 udev->speed < USB_SPEED_SUPER || in usb_disable_lpm()
4361 !udev->lpm_capable || in usb_disable_lpm()
4362 udev->state < USB_STATE_CONFIGURED) in usb_disable_lpm()
4365 hcd = bus_to_hcd(udev->bus); in usb_disable_lpm()
4369 udev->lpm_disable_count++; in usb_disable_lpm()
4370 if ((udev->u1_params.timeout == 0 && udev->u2_params.timeout == 0)) in usb_disable_lpm()
4374 if (usb_disable_link_state(hcd, udev, USB3_LPM_U1)) in usb_disable_lpm()
4376 if (usb_disable_link_state(hcd, udev, USB3_LPM_U2)) in usb_disable_lpm()
4382 usb_enable_lpm(udev); in usb_disable_lpm()
4388 int usb_unlocked_disable_lpm(struct usb_device *udev) in usb_unlocked_disable_lpm() argument
4390 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_unlocked_disable_lpm()
4397 ret = usb_disable_lpm(udev); in usb_unlocked_disable_lpm()
4412 void usb_enable_lpm(struct usb_device *udev) in usb_enable_lpm() argument
4418 if (!udev || !udev->parent || in usb_enable_lpm()
4419 udev->speed < USB_SPEED_SUPER || in usb_enable_lpm()
4420 !udev->lpm_capable || in usb_enable_lpm()
4421 udev->state < USB_STATE_CONFIGURED) in usb_enable_lpm()
4424 udev->lpm_disable_count--; in usb_enable_lpm()
4425 hcd = bus_to_hcd(udev->bus); in usb_enable_lpm()
4433 if (udev->lpm_disable_count > 0) in usb_enable_lpm()
4436 hub = usb_hub_to_struct_hub(udev->parent); in usb_enable_lpm()
4440 port_dev = hub->ports[udev->portnum - 1]; in usb_enable_lpm()
4443 usb_enable_link_state(hcd, udev, USB3_LPM_U1); in usb_enable_lpm()
4446 usb_enable_link_state(hcd, udev, USB3_LPM_U2); in usb_enable_lpm()
4451 void usb_unlocked_enable_lpm(struct usb_device *udev) in usb_unlocked_enable_lpm() argument
4453 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_unlocked_enable_lpm()
4459 usb_enable_lpm(udev); in usb_unlocked_enable_lpm()
4468 struct usb_device *udev = port_dev->child; in hub_usb3_port_prepare_disable() local
4471 if (udev && udev->port_is_suspended && udev->do_remote_wakeup) { in hub_usb3_port_prepare_disable()
4476 ret = usb_disable_remote_wakeup(udev); in hub_usb3_port_prepare_disable()
4479 dev_warn(&udev->dev, in hub_usb3_port_prepare_disable()
4481 udev->do_remote_wakeup = 0; in hub_usb3_port_prepare_disable()
4494 int usb_disable_lpm(struct usb_device *udev) in usb_disable_lpm() argument
4500 void usb_enable_lpm(struct usb_device *udev) { } in usb_enable_lpm() argument
4503 int usb_unlocked_disable_lpm(struct usb_device *udev) in usb_unlocked_disable_lpm() argument
4509 void usb_unlocked_enable_lpm(struct usb_device *udev) { } in usb_unlocked_enable_lpm() argument
4512 int usb_disable_ltm(struct usb_device *udev) in usb_disable_ltm() argument
4518 void usb_enable_ltm(struct usb_device *udev) { } in usb_enable_ltm() argument
4527 static int usb_req_set_sel(struct usb_device *udev) in usb_req_set_sel() argument
4569 int usb_port_disable(struct usb_device *udev) in usb_port_disable() argument
4571 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_disable()
4573 return hub_port_disable(hub, udev->portnum, 0); in usb_port_disable()
4634 void usb_ep0_reinit(struct usb_device *udev) in usb_ep0_reinit() argument
4636 usb_disable_endpoint(udev, 0 + USB_DIR_IN, true); in usb_ep0_reinit()
4637 usb_disable_endpoint(udev, 0 + USB_DIR_OUT, true); in usb_ep0_reinit()
4638 usb_enable_endpoint(udev, &udev->ep0, true); in usb_ep0_reinit()
4645 static int hub_set_address(struct usb_device *udev, int devnum) in hub_set_address() argument
4648 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_set_address()
4656 if (udev->state == USB_STATE_ADDRESS) in hub_set_address()
4658 if (udev->state != USB_STATE_DEFAULT) in hub_set_address()
4661 retval = hcd->driver->address_device(hcd, udev); in hub_set_address()
4663 retval = usb_control_msg(udev, usb_sndaddr0pipe(), in hub_set_address()
4667 update_devnum(udev, devnum); in hub_set_address()
4669 usb_set_device_state(udev, USB_STATE_ADDRESS); in hub_set_address()
4670 usb_ep0_reinit(udev); in hub_set_address()
4684 static void hub_set_initial_usb2_lpm_policy(struct usb_device *udev) in hub_set_initial_usb2_lpm_policy() argument
4686 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in hub_set_initial_usb2_lpm_policy()
4689 if (!udev->usb2_hw_lpm_capable || !udev->bos) in hub_set_initial_usb2_lpm_policy()
4693 connect_type = hub->ports[udev->portnum - 1]->connect_type; in hub_set_initial_usb2_lpm_policy()
4695 if ((udev->bos->ext_cap->bmAttributes & cpu_to_le32(USB_BESL_SUPPORT)) || in hub_set_initial_usb2_lpm_policy()
4697 udev->usb2_hw_lpm_allowed = 1; in hub_set_initial_usb2_lpm_policy()
4698 usb_enable_usb2_hardware_lpm(udev); in hub_set_initial_usb2_lpm_policy()
4702 static int hub_enable_device(struct usb_device *udev) in hub_enable_device() argument
4704 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_enable_device()
4708 if (udev->state == USB_STATE_ADDRESS) in hub_enable_device()
4710 if (udev->state != USB_STATE_DEFAULT) in hub_enable_device()
4713 return hcd->driver->enable_device(hcd, udev); in hub_enable_device()
4731 static int get_bMaxPacketSize0(struct usb_device *udev, in get_bMaxPacketSize0() argument
4744 rc = usb_control_msg(udev, usb_rcvaddr0pipe(), in get_bMaxPacketSize0()
4769 udev->speed > USB_SPEED_FULL)) in get_bMaxPacketSize0()
4795 hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, in hub_port_init() argument
4803 enum usb_device_speed oldspeed = udev->speed; in hub_port_init()
4805 int devnum = udev->devnum; in hub_port_init()
4832 retval = hub_port_reset(hub, port1, udev, delay, false); in hub_port_init()
4840 if (oldspeed != USB_SPEED_UNKNOWN && oldspeed != udev->speed && in hub_port_init()
4841 !(oldspeed == USB_SPEED_SUPER && udev->speed > oldspeed)) { in hub_port_init()
4842 dev_dbg(&udev->dev, "device reset changed speed!\n"); in hub_port_init()
4845 oldspeed = udev->speed; in hub_port_init()
4851 switch (udev->speed) { in hub_port_init()
4854 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(512); in hub_port_init()
4857 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(64); in hub_port_init()
4864 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(64); in hub_port_init()
4867 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(8); in hub_port_init()
4874 speed = usb_speed_string(udev->speed); in hub_port_init()
4883 if (udev->bus->controller->driver) in hub_port_init()
4884 driver_name = udev->bus->controller->driver->name; in hub_port_init()
4886 driver_name = udev->bus->sysdev->driver->name; in hub_port_init()
4888 if (udev->speed < USB_SPEED_SUPER) in hub_port_init()
4889 dev_info(&udev->dev, in hub_port_init()
4897 udev->tt = hdev->tt; in hub_port_init()
4898 udev->ttport = hdev->ttport; in hub_port_init()
4899 } else if (udev->speed != USB_SPEED_HIGH in hub_port_init()
4902 dev_err(&udev->dev, "parent hub has no TT\n"); in hub_port_init()
4906 udev->tt = &hub->tt; in hub_port_init()
4907 udev->ttport = port1; in hub_port_init()
4923 do_new_scheme = use_new_scheme(udev, retry_counter, port_dev); in hub_port_init()
4932 retval = hub_enable_device(udev); in hub_port_init()
4934 dev_err(&udev->dev, in hub_port_init()
4940 maxp0 = get_bMaxPacketSize0(udev, buf, in hub_port_init()
4943 maxp0 != udev->descriptor.bMaxPacketSize0) { in hub_port_init()
4944 dev_err(&udev->dev, "device reset changed ep0 maxpacket size!\n"); in hub_port_init()
4949 retval = hub_port_reset(hub, port1, udev, delay, false); in hub_port_init()
4952 if (oldspeed != udev->speed) { in hub_port_init()
4953 dev_dbg(&udev->dev, in hub_port_init()
4960 dev_err(&udev->dev, "device descriptor read/64, error %d\n", in hub_port_init()
4968 retval = hub_set_address(udev, devnum); in hub_port_init()
4975 dev_err(&udev->dev, "device not accepting address %d, error %d\n", in hub_port_init()
4979 if (udev->speed >= USB_SPEED_SUPER) { in hub_port_init()
4980 devnum = udev->devnum; in hub_port_init()
4981 dev_info(&udev->dev, in hub_port_init()
4983 (udev->config) ? "reset" : "new", in hub_port_init()
4984 (udev->speed == USB_SPEED_SUPER_PLUS) ? in hub_port_init()
4986 (udev->ssp_rate == USB_SSP_GEN_2x2) ? in hub_port_init()
4988 (udev->ssp_rate == USB_SSP_GEN_2x1) ? in hub_port_init()
4990 (udev->ssp_rate == USB_SSP_GEN_1x2) ? in hub_port_init()
5005 maxp0 = get_bMaxPacketSize0(udev, buf, 8, retries == 0); in hub_port_init()
5009 dev_err(&udev->dev, in hub_port_init()
5015 if (!initial && maxp0 != udev->descriptor.bMaxPacketSize0) { in hub_port_init()
5016 dev_err(&udev->dev, "device reset changed ep0 maxpacket size!\n"); in hub_port_init()
5021 delay = udev->parent->hub_delay; in hub_port_init()
5022 udev->hub_delay = min_t(u32, delay, in hub_port_init()
5024 retval = usb_set_isoch_delay(udev); in hub_port_init()
5026 dev_dbg(&udev->dev, in hub_port_init()
5043 if (udev->speed >= USB_SPEED_SUPER) { in hub_port_init()
5049 if (usb_endpoint_maxp(&udev->ep0.desc) == i) { in hub_port_init()
5051 } else if ((udev->speed == USB_SPEED_FULL || in hub_port_init()
5052 udev->speed == USB_SPEED_HIGH) && in hub_port_init()
5055 if (udev->speed == USB_SPEED_FULL) in hub_port_init()
5056 dev_dbg(&udev->dev, "ep0 maxpacket = %d\n", i); in hub_port_init()
5058 dev_warn(&udev->dev, "Using ep0 maxpacket: %d\n", i); in hub_port_init()
5059 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(i); in hub_port_init()
5060 usb_ep0_reinit(udev); in hub_port_init()
5063 dev_err(&udev->dev, "Invalid ep0 maxpacket: %d\n", maxp0); in hub_port_init()
5068 descr = usb_get_device_descriptor(udev); in hub_port_init()
5072 dev_err(&udev->dev, "device descriptor read/all, error %d\n", in hub_port_init()
5077 udev->descriptor = *descr; in hub_port_init()
5088 if ((udev->speed >= USB_SPEED_SUPER) && in hub_port_init()
5089 (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0300)) { in hub_port_init()
5090 dev_err(&udev->dev, "got a wrong device descriptor, warm reset device\n"); in hub_port_init()
5091 hub_port_reset(hub, port1, udev, HUB_BH_RESET_TIME, true); in hub_port_init()
5096 usb_detect_quirks(udev); in hub_port_init()
5098 if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0201) { in hub_port_init()
5099 retval = usb_get_bos_descriptor(udev); in hub_port_init()
5101 udev->lpm_capable = usb_device_supports_lpm(udev); in hub_port_init()
5102 udev->lpm_disable_count = 1; in hub_port_init()
5103 usb_set_lpm_parameters(udev); in hub_port_init()
5104 usb_req_set_sel(udev); in hub_port_init()
5111 hcd->driver->update_device(hcd, udev); in hub_port_init()
5112 hub_set_initial_usb2_lpm_policy(udev); in hub_port_init()
5116 update_devnum(udev, devnum); /* for disconnect processing */ in hub_port_init()
5123 check_highspeed(struct usb_hub *hub, struct usb_device *udev, int port1) in check_highspeed() argument
5128 if (udev->quirks & USB_QUIRK_DEVICE_QUALIFIER) in check_highspeed()
5135 status = usb_get_descriptor(udev, USB_DT_DEVICE_QUALIFIER, 0, in check_highspeed()
5138 dev_info(&udev->dev, "not running at top speed; " in check_highspeed()
5163 struct usb_device *udev = port_dev->child; in hub_power_remaining() local
5167 if (!udev) in hub_power_remaining()
5169 if (hub_is_superspeed(udev)) in hub_power_remaining()
5178 if (udev->actconfig) in hub_power_remaining()
5179 delta = usb_get_max_power(udev, udev->actconfig); in hub_power_remaining()
5180 else if (port1 != udev->bus->otg_port || hdev->parent) in hub_power_remaining()
5198 static int descriptors_changed(struct usb_device *udev, in descriptors_changed() argument
5210 if (memcmp(&udev->descriptor, new_device_descriptor, in descriptors_changed()
5214 if ((old_bos && !udev->bos) || (!old_bos && udev->bos)) in descriptors_changed()
5216 if (udev->bos) { in descriptors_changed()
5217 len = le16_to_cpu(udev->bos->desc->wTotalLength); in descriptors_changed()
5220 if (memcmp(udev->bos->desc, old_bos->desc, len)) in descriptors_changed()
5230 if (udev->serial) in descriptors_changed()
5231 serial_len = strlen(udev->serial) + 1; in descriptors_changed()
5234 for (index = 0; index < udev->descriptor.bNumConfigurations; index++) { in descriptors_changed()
5235 old_length = le16_to_cpu(udev->config[index].desc.wTotalLength); in descriptors_changed()
5244 for (index = 0; index < udev->descriptor.bNumConfigurations; index++) { in descriptors_changed()
5245 old_length = le16_to_cpu(udev->config[index].desc.wTotalLength); in descriptors_changed()
5246 length = usb_get_descriptor(udev, USB_DT_CONFIG, index, buf, in descriptors_changed()
5249 dev_dbg(&udev->dev, "config index %d, error %d\n", in descriptors_changed()
5254 if (memcmp(buf, udev->rawdescriptors[index], old_length) in descriptors_changed()
5256 dev_dbg(&udev->dev, "config index %d changed (#%d)\n", in descriptors_changed()
5266 length = usb_string(udev, udev->descriptor.iSerialNumber, in descriptors_changed()
5269 dev_dbg(&udev->dev, "serial string error %d\n", in descriptors_changed()
5272 } else if (memcmp(buf, udev->serial, length) != 0) { in descriptors_changed()
5273 dev_dbg(&udev->dev, "serial string changed\n"); in descriptors_changed()
5291 struct usb_device *udev = port_dev->child; in hub_port_connect() local
5296 if (udev) { in hub_port_connect()
5298 usb_phy_notify_disconnect(hcd->usb_phy, udev->speed); in hub_port_connect()
5362 udev = usb_alloc_dev(hdev, hdev->bus, port1); in hub_port_connect()
5363 if (!udev) { in hub_port_connect()
5371 usb_set_device_state(udev, USB_STATE_POWERED); in hub_port_connect()
5372 udev->bus_mA = hub->mA_per_port; in hub_port_connect()
5373 udev->level = hdev->level + 1; in hub_port_connect()
5377 udev->speed = USB_SPEED_SUPER; in hub_port_connect()
5379 udev->speed = USB_SPEED_UNKNOWN; in hub_port_connect()
5381 choose_devnum(udev); in hub_port_connect()
5382 if (udev->devnum <= 0) { in hub_port_connect()
5388 status = hub_port_init(hub, udev, port1, i, NULL); in hub_port_connect()
5396 if (udev->quirks & USB_QUIRK_DELAY_INIT) in hub_port_connect()
5405 if (udev->descriptor.bDeviceClass == USB_CLASS_HUB in hub_port_connect()
5406 && udev->bus_mA <= unit_load) { in hub_port_connect()
5409 status = usb_get_std_status(udev, USB_RECIP_DEVICE, 0, in hub_port_connect()
5412 dev_dbg(&udev->dev, "get status %d ?\n", status); in hub_port_connect()
5416 dev_err(&udev->dev, in hub_port_connect()
5432 if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0200 in hub_port_connect()
5433 && udev->speed == USB_SPEED_FULL in hub_port_connect()
5435 check_highspeed(hub, udev, port1); in hub_port_connect()
5453 port_dev->child = udev; in hub_port_connect()
5459 status = usb_new_device(udev); in hub_port_connect()
5469 udev->speed); in hub_port_connect()
5485 usb_ep0_reinit(udev); in hub_port_connect()
5486 release_devnum(udev); in hub_port_connect()
5487 hub_free_dev(udev); in hub_port_connect()
5492 usb_put_dev(udev); in hub_port_connect()
5534 struct usb_device *udev = port_dev->child; in hub_port_connect_change() local
5554 if ((portstatus & USB_PORT_STAT_CONNECTION) && udev && in hub_port_connect_change()
5555 udev->state != USB_STATE_NOTATTACHED) { in hub_port_connect_change()
5563 descr = usb_get_device_descriptor(udev); in hub_port_connect_change()
5565 dev_dbg(&udev->dev, in hub_port_connect_change()
5569 if (descriptors_changed(udev, descr, in hub_port_connect_change()
5570 udev->bos)) { in hub_port_connect_change()
5571 dev_dbg(&udev->dev, in hub_port_connect_change()
5579 } else if (udev->state == USB_STATE_SUSPENDED && in hub_port_connect_change()
5580 udev->persist_enabled) { in hub_port_connect_change()
5585 status = usb_remote_wakeup(udev); in hub_port_connect_change()
5643 struct usb_device *udev = port_dev->child; in port_event() local
5672 && !connect_change && udev) { in port_event()
5733 if ((i++ < DETECT_DISCONNECT_TRIES) && udev) { in port_event()
5740 } else if (!udev || !(portstatus & USB_PORT_STAT_CONNECTION) in port_event()
5741 || udev->state == USB_STATE_NOTATTACHED) { in port_event()
5749 usb_lock_device(udev); in port_event()
5750 usb_reset_device(udev); in port_event()
5751 usb_unlock_device(udev); in port_event()
6013 static int usb_reset_and_verify_device(struct usb_device *udev) in usb_reset_and_verify_device() argument
6015 struct usb_device *parent_hdev = udev->parent; in usb_reset_and_verify_device()
6017 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_reset_and_verify_device()
6021 int port1 = udev->portnum; in usb_reset_and_verify_device()
6023 if (udev->state == USB_STATE_NOTATTACHED || in usb_reset_and_verify_device()
6024 udev->state == USB_STATE_SUSPENDED) { in usb_reset_and_verify_device()
6025 dev_dbg(&udev->dev, "device reset not allowed in state %d\n", in usb_reset_and_verify_device()
6026 udev->state); in usb_reset_and_verify_device()
6038 usb_disable_usb2_hardware_lpm(udev); in usb_reset_and_verify_device()
6040 bos = udev->bos; in usb_reset_and_verify_device()
6041 udev->bos = NULL; in usb_reset_and_verify_device()
6053 usb_ep0_reinit(udev); in usb_reset_and_verify_device()
6054 ret = hub_port_init(parent_hub, udev, port1, i, &descriptor); in usb_reset_and_verify_device()
6064 if (descriptors_changed(udev, &descriptor, bos)) { in usb_reset_and_verify_device()
6065 dev_info(&udev->dev, "device firmware changed\n"); in usb_reset_and_verify_device()
6070 if (!udev->actconfig) in usb_reset_and_verify_device()
6074 ret = usb_hcd_alloc_bandwidth(udev, udev->actconfig, NULL, NULL); in usb_reset_and_verify_device()
6076 dev_warn(&udev->dev, in usb_reset_and_verify_device()
6082 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_reset_and_verify_device()
6084 udev->actconfig->desc.bConfigurationValue, 0, in usb_reset_and_verify_device()
6087 dev_err(&udev->dev, in usb_reset_and_verify_device()
6089 udev->actconfig->desc.bConfigurationValue, ret); in usb_reset_and_verify_device()
6094 usb_set_device_state(udev, USB_STATE_CONFIGURED); in usb_reset_and_verify_device()
6102 for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { in usb_reset_and_verify_device()
6103 struct usb_host_config *config = udev->actconfig; in usb_reset_and_verify_device()
6109 usb_disable_interface(udev, intf, true); in usb_reset_and_verify_device()
6110 usb_enable_interface(udev, intf, true); in usb_reset_and_verify_device()
6118 ret = usb_set_interface(udev, desc->bInterfaceNumber, in usb_reset_and_verify_device()
6123 dev_err(&udev->dev, "failed to restore interface %d " in usb_reset_and_verify_device()
6137 usb_enable_usb2_hardware_lpm(udev); in usb_reset_and_verify_device()
6138 usb_unlocked_enable_lpm(udev); in usb_reset_and_verify_device()
6139 usb_enable_ltm(udev); in usb_reset_and_verify_device()
6140 usb_release_bos_descriptor(udev); in usb_reset_and_verify_device()
6141 udev->bos = bos; in usb_reset_and_verify_device()
6145 usb_release_bos_descriptor(udev); in usb_reset_and_verify_device()
6146 udev->bos = bos; in usb_reset_and_verify_device()
6177 int usb_reset_device(struct usb_device *udev) in usb_reset_device() argument
6183 struct usb_host_config *config = udev->actconfig; in usb_reset_device()
6184 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_reset_device()
6186 if (udev->state == USB_STATE_NOTATTACHED) { in usb_reset_device()
6187 dev_dbg(&udev->dev, "device reset not allowed in state %d\n", in usb_reset_device()
6188 udev->state); in usb_reset_device()
6192 if (!udev->parent) { in usb_reset_device()
6194 dev_dbg(&udev->dev, "%s for root hub!\n", __func__); in usb_reset_device()
6198 if (udev->reset_in_progress) in usb_reset_device()
6200 udev->reset_in_progress = 1; in usb_reset_device()
6202 port_dev = hub->ports[udev->portnum - 1]; in usb_reset_device()
6216 usb_autoresume_device(udev); in usb_reset_device()
6238 ret = usb_reset_and_verify_device(udev); in usb_reset_device()
6261 usb_unbind_and_rebind_marked_interfaces(udev); in usb_reset_device()
6264 usb_autosuspend_device(udev); in usb_reset_device()
6266 udev->reset_in_progress = 0; in usb_reset_device()