Lines Matching refs:udev
117 static int usb_reset_and_verify_device(struct usb_device *udev);
144 int usb_device_supports_lpm(struct usb_device *udev) in usb_device_supports_lpm() argument
147 if (udev->quirks & USB_QUIRK_NO_LPM) in usb_device_supports_lpm()
153 if (udev->speed == USB_SPEED_HIGH || udev->speed == USB_SPEED_FULL) { in usb_device_supports_lpm()
154 if (udev->bos->ext_cap && in usb_device_supports_lpm()
156 le32_to_cpu(udev->bos->ext_cap->bmAttributes))) in usb_device_supports_lpm()
166 if (!udev->bos->ss_cap) { in usb_device_supports_lpm()
167 dev_info(&udev->dev, "No LPM exit latency info found, disabling LPM.\n"); in usb_device_supports_lpm()
171 if (udev->bos->ss_cap->bU1devExitLat == 0 && in usb_device_supports_lpm()
172 udev->bos->ss_cap->bU2DevExitLat == 0) { in usb_device_supports_lpm()
173 if (udev->parent) in usb_device_supports_lpm()
174 dev_info(&udev->dev, "LPM exit latency is zeroed, disabling LPM.\n"); in usb_device_supports_lpm()
176 dev_info(&udev->dev, "We don't know the algorithms for LPM for this host, disabling LPM.\n"); in usb_device_supports_lpm()
180 if (!udev->parent || udev->parent->lpm_capable) in usb_device_supports_lpm()
190 static void usb_set_lpm_mel(struct usb_device *udev, in usb_set_lpm_mel() argument
237 static void usb_set_lpm_pel(struct usb_device *udev, in usb_set_lpm_pel() argument
291 static void usb_set_lpm_sel(struct usb_device *udev, in usb_set_lpm_sel() argument
301 for (parent = udev->parent, num_hubs = 0; parent->parent; in usb_set_lpm_sel()
314 static void usb_set_lpm_parameters(struct usb_device *udev) in usb_set_lpm_parameters() argument
323 if (!udev->lpm_capable || udev->speed < USB_SPEED_SUPER) in usb_set_lpm_parameters()
326 hub = usb_hub_to_struct_hub(udev->parent); in usb_set_lpm_parameters()
333 udev_u1_del = udev->bos->ss_cap->bU1devExitLat; in usb_set_lpm_parameters()
334 udev_u2_del = le16_to_cpu(udev->bos->ss_cap->bU2DevExitLat); in usb_set_lpm_parameters()
335 hub_u1_del = udev->parent->bos->ss_cap->bU1devExitLat; in usb_set_lpm_parameters()
336 hub_u2_del = le16_to_cpu(udev->parent->bos->ss_cap->bU2DevExitLat); in usb_set_lpm_parameters()
338 usb_set_lpm_mel(udev, &udev->u1_params, udev_u1_del, in usb_set_lpm_parameters()
339 hub, &udev->parent->u1_params, hub_u1_del); in usb_set_lpm_parameters()
341 usb_set_lpm_mel(udev, &udev->u2_params, udev_u2_del, in usb_set_lpm_parameters()
342 hub, &udev->parent->u2_params, hub_u2_del); in usb_set_lpm_parameters()
363 usb_set_lpm_pel(udev, &udev->u1_params, udev_u1_del, in usb_set_lpm_parameters()
364 hub, &udev->parent->u1_params, hub_u1_del, in usb_set_lpm_parameters()
372 usb_set_lpm_pel(udev, &udev->u2_params, udev_u2_del, in usb_set_lpm_parameters()
373 hub, &udev->parent->u2_params, hub_u2_del, in usb_set_lpm_parameters()
377 usb_set_lpm_sel(udev, &udev->u1_params); in usb_set_lpm_parameters()
378 usb_set_lpm_sel(udev, &udev->u2_params); in usb_set_lpm_parameters()
867 struct usb_device *udev = urb->dev; in usb_hub_clear_tt_buffer() local
869 struct usb_tt *tt = udev->tt; in usb_hub_clear_tt_buffer()
879 dev_err(&udev->dev, "can't save CLEAR_TT_BUFFER state\n"); in usb_hub_clear_tt_buffer()
885 clear->tt = tt->multi ? udev->ttport : 1; in usb_hub_clear_tt_buffer()
887 clear->devinfo |= ((u16)udev->devaddr) << 4; in usb_hub_clear_tt_buffer()
895 clear->hcd = bus_to_hcd(udev->bus); in usb_hub_clear_tt_buffer()
995 int usb_remove_device(struct usb_device *udev) in usb_remove_device() argument
1001 if (!udev->parent) /* Can't remove a root hub */ in usb_remove_device()
1003 hub = usb_hub_to_struct_hub(udev->parent); in usb_remove_device()
1010 set_bit(udev->portnum, hub->removed_bits); in usb_remove_device()
1011 hub_port_logical_disconnect(hub, udev->portnum); in usb_remove_device()
1122 struct usb_device *udev = port_dev->child; in hub_activate() local
1130 if (udev || (portstatus & USB_PORT_STAT_CONNECTION)) in hub_activate()
1143 !udev || in hub_activate()
1144 udev->state == USB_STATE_NOTATTACHED)) { in hub_activate()
1201 if (!udev || udev->state == USB_STATE_NOTATTACHED) { in hub_activate()
1208 if (udev || (portstatus & USB_PORT_STAT_CONNECTION) || in hub_activate()
1230 } else if (udev->persist_enabled) { in hub_activate()
1232 udev->reset_resume = 1; in hub_activate()
1242 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in hub_activate()
1998 bool usb_device_is_owned(struct usb_device *udev) in usb_device_is_owned() argument
2002 if (udev->state == USB_STATE_NOTATTACHED || !udev->parent) in usb_device_is_owned()
2004 hub = usb_hub_to_struct_hub(udev->parent); in usb_device_is_owned()
2005 return !!hub->ports[udev->portnum - 1]->port_owner; in usb_device_is_owned()
2008 static void recursively_mark_NOTATTACHED(struct usb_device *udev) in recursively_mark_NOTATTACHED() argument
2010 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in recursively_mark_NOTATTACHED()
2013 for (i = 0; i < udev->maxchild; ++i) { in recursively_mark_NOTATTACHED()
2017 if (udev->state == USB_STATE_SUSPENDED) in recursively_mark_NOTATTACHED()
2018 udev->active_duration -= jiffies; in recursively_mark_NOTATTACHED()
2019 udev->state = USB_STATE_NOTATTACHED; in recursively_mark_NOTATTACHED()
2043 void usb_set_device_state(struct usb_device *udev, in usb_set_device_state() argument
2050 if (udev->state == USB_STATE_NOTATTACHED) in usb_set_device_state()
2057 if (udev->parent) { in usb_set_device_state()
2058 if (udev->state == USB_STATE_SUSPENDED in usb_set_device_state()
2062 wakeup = (udev->quirks & in usb_set_device_state()
2064 udev->actconfig->desc.bmAttributes & in usb_set_device_state()
2069 if (udev->state == USB_STATE_SUSPENDED && in usb_set_device_state()
2071 udev->active_duration -= jiffies; in usb_set_device_state()
2073 udev->state != USB_STATE_SUSPENDED) in usb_set_device_state()
2074 udev->active_duration += jiffies; in usb_set_device_state()
2075 udev->state = new_state; in usb_set_device_state()
2077 recursively_mark_NOTATTACHED(udev); in usb_set_device_state()
2080 device_set_wakeup_capable(&udev->dev, wakeup); in usb_set_device_state()
2113 static void choose_devnum(struct usb_device *udev) in choose_devnum() argument
2116 struct usb_bus *bus = udev->bus; in choose_devnum()
2120 if (udev->wusb) { in choose_devnum()
2121 devnum = udev->portnum + 1; in choose_devnum()
2135 udev->devnum = devnum; in choose_devnum()
2140 static void release_devnum(struct usb_device *udev) in release_devnum() argument
2142 if (udev->devnum > 0) { in release_devnum()
2143 clear_bit(udev->devnum, udev->bus->devmap.devicemap); in release_devnum()
2144 udev->devnum = -1; in release_devnum()
2148 static void update_devnum(struct usb_device *udev, int devnum) in update_devnum() argument
2151 if (!udev->wusb) in update_devnum()
2152 udev->devnum = devnum; in update_devnum()
2153 if (!udev->devaddr) in update_devnum()
2154 udev->devaddr = (u8)devnum; in update_devnum()
2157 static void hub_free_dev(struct usb_device *udev) in hub_free_dev() argument
2159 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_free_dev()
2162 if (hcd->driver->free_dev && udev->parent) in hub_free_dev()
2163 hcd->driver->free_dev(hcd, udev); in hub_free_dev()
2166 static void hub_disconnect_children(struct usb_device *udev) in hub_disconnect_children() argument
2168 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in hub_disconnect_children()
2172 for (i = 0; i < udev->maxchild; i++) { in hub_disconnect_children()
2198 struct usb_device *udev = *pdev; in usb_disconnect() local
2206 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in usb_disconnect()
2207 dev_info(&udev->dev, "USB disconnect, device number %d\n", in usb_disconnect()
2208 udev->devnum); in usb_disconnect()
2214 pm_runtime_barrier(&udev->dev); in usb_disconnect()
2216 usb_lock_device(udev); in usb_disconnect()
2218 hub_disconnect_children(udev); in usb_disconnect()
2224 dev_dbg(&udev->dev, "unregistering device\n"); in usb_disconnect()
2225 usb_disable_device(udev, 0); in usb_disconnect()
2226 usb_hcd_synchronize_unlinks(udev); in usb_disconnect()
2228 if (udev->parent) { in usb_disconnect()
2229 port1 = udev->portnum; in usb_disconnect()
2230 hub = usb_hub_to_struct_hub(udev->parent); in usb_disconnect()
2233 sysfs_remove_link(&udev->dev.kobj, "port"); in usb_disconnect()
2244 usb_remove_ep_devs(&udev->ep0); in usb_disconnect()
2245 usb_unlock_device(udev); in usb_disconnect()
2251 device_del(&udev->dev); in usb_disconnect()
2256 release_devnum(udev); in usb_disconnect()
2266 hub_free_dev(udev); in usb_disconnect()
2268 put_device(&udev->dev); in usb_disconnect()
2272 static void show_string(struct usb_device *udev, char *id, char *string) in show_string() argument
2276 dev_info(&udev->dev, "%s: %s\n", id, string); in show_string()
2279 static void announce_device(struct usb_device *udev) in announce_device() argument
2281 u16 bcdDevice = le16_to_cpu(udev->descriptor.bcdDevice); in announce_device()
2283 dev_info(&udev->dev, in announce_device()
2285 le16_to_cpu(udev->descriptor.idVendor), in announce_device()
2286 le16_to_cpu(udev->descriptor.idProduct), in announce_device()
2288 dev_info(&udev->dev, in announce_device()
2290 udev->descriptor.iManufacturer, in announce_device()
2291 udev->descriptor.iProduct, in announce_device()
2292 udev->descriptor.iSerialNumber); in announce_device()
2293 show_string(udev, "Product", udev->product); in announce_device()
2294 show_string(udev, "Manufacturer", udev->manufacturer); in announce_device()
2295 show_string(udev, "SerialNumber", udev->serial); in announce_device()
2298 static inline void announce_device(struct usb_device *udev) { } in announce_device() argument
2310 static int usb_enumerate_device_otg(struct usb_device *udev) in usb_enumerate_device_otg() argument
2320 if (!udev->bus->is_b_host in usb_enumerate_device_otg()
2321 && udev->config in usb_enumerate_device_otg()
2322 && udev->parent == udev->bus->root_hub) { in usb_enumerate_device_otg()
2324 struct usb_bus *bus = udev->bus; in usb_enumerate_device_otg()
2325 unsigned port1 = udev->portnum; in usb_enumerate_device_otg()
2328 err = __usb_get_extra_descriptor(udev->rawdescriptors[0], in usb_enumerate_device_otg()
2329 le16_to_cpu(udev->config[0].desc.wTotalLength), in usb_enumerate_device_otg()
2334 dev_info(&udev->dev, "Dual-Role OTG device on %sHNP port\n", in usb_enumerate_device_otg()
2340 err = usb_control_msg(udev, in usb_enumerate_device_otg()
2341 usb_sndctrlpipe(udev, 0), in usb_enumerate_device_otg()
2351 dev_err(&udev->dev, "can't set HNP mode: %d\n", in usb_enumerate_device_otg()
2358 err = usb_control_msg(udev, in usb_enumerate_device_otg()
2359 usb_sndctrlpipe(udev, 0), in usb_enumerate_device_otg()
2365 dev_err(&udev->dev, in usb_enumerate_device_otg()
2389 static int usb_enumerate_device(struct usb_device *udev) in usb_enumerate_device() argument
2392 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_enumerate_device()
2394 if (udev->config == NULL) { in usb_enumerate_device()
2395 err = usb_get_configuration(udev); in usb_enumerate_device()
2398 dev_err(&udev->dev, "can't read configurations, error %d\n", in usb_enumerate_device()
2405 udev->product = usb_cache_string(udev, udev->descriptor.iProduct); in usb_enumerate_device()
2406 udev->manufacturer = usb_cache_string(udev, in usb_enumerate_device()
2407 udev->descriptor.iManufacturer); in usb_enumerate_device()
2408 udev->serial = usb_cache_string(udev, udev->descriptor.iSerialNumber); in usb_enumerate_device()
2410 err = usb_enumerate_device_otg(udev); in usb_enumerate_device()
2415 !is_targeted(udev)) { in usb_enumerate_device()
2419 if (IS_ENABLED(CONFIG_USB_OTG) && (udev->bus->b_hnp_enable in usb_enumerate_device()
2420 || udev->bus->is_b_host)) { in usb_enumerate_device()
2421 err = usb_port_suspend(udev, PMSG_AUTO_SUSPEND); in usb_enumerate_device()
2423 dev_dbg(&udev->dev, "HNP fail, %d\n", err); in usb_enumerate_device()
2428 usb_detect_interface_quirks(udev); in usb_enumerate_device()
2433 static void set_usb_port_removable(struct usb_device *udev) in set_usb_port_removable() argument
2435 struct usb_device *hdev = udev->parent; in set_usb_port_removable()
2437 u8 port = udev->portnum; in set_usb_port_removable()
2441 dev_set_removable(&udev->dev, DEVICE_REMOVABLE_UNKNOWN); in set_usb_port_removable()
2446 hub = usb_hub_to_struct_hub(udev->parent); in set_usb_port_removable()
2452 switch (hub->ports[udev->portnum - 1]->connect_type) { in set_usb_port_removable()
2454 dev_set_removable(&udev->dev, DEVICE_REMOVABLE); in set_usb_port_removable()
2458 dev_set_removable(&udev->dev, DEVICE_FIXED); in set_usb_port_removable()
2483 dev_set_removable(&udev->dev, DEVICE_REMOVABLE); in set_usb_port_removable()
2485 dev_set_removable(&udev->dev, DEVICE_FIXED); in set_usb_port_removable()
2510 int usb_new_device(struct usb_device *udev) in usb_new_device() argument
2514 if (udev->parent) { in usb_new_device()
2519 device_init_wakeup(&udev->dev, 0); in usb_new_device()
2523 pm_runtime_set_active(&udev->dev); in usb_new_device()
2524 pm_runtime_get_noresume(&udev->dev); in usb_new_device()
2525 pm_runtime_use_autosuspend(&udev->dev); in usb_new_device()
2526 pm_runtime_enable(&udev->dev); in usb_new_device()
2531 usb_disable_autosuspend(udev); in usb_new_device()
2533 err = usb_enumerate_device(udev); /* Read descriptors */ in usb_new_device()
2536 dev_dbg(&udev->dev, "udev %d, busnum %d, minor = %d\n", in usb_new_device()
2537 udev->devnum, udev->bus->busnum, in usb_new_device()
2538 (((udev->bus->busnum-1) * 128) + (udev->devnum-1))); in usb_new_device()
2540 udev->dev.devt = MKDEV(USB_DEVICE_MAJOR, in usb_new_device()
2541 (((udev->bus->busnum-1) * 128) + (udev->devnum-1))); in usb_new_device()
2544 announce_device(udev); in usb_new_device()
2546 if (udev->serial) in usb_new_device()
2547 add_device_randomness(udev->serial, strlen(udev->serial)); in usb_new_device()
2548 if (udev->product) in usb_new_device()
2549 add_device_randomness(udev->product, strlen(udev->product)); in usb_new_device()
2550 if (udev->manufacturer) in usb_new_device()
2551 add_device_randomness(udev->manufacturer, in usb_new_device()
2552 strlen(udev->manufacturer)); in usb_new_device()
2554 device_enable_async_suspend(&udev->dev); in usb_new_device()
2557 set_usb_port_removable(udev); in usb_new_device()
2563 err = device_add(&udev->dev); in usb_new_device()
2565 dev_err(&udev->dev, "can't device_add, error %d\n", err); in usb_new_device()
2570 if (udev->parent) { in usb_new_device()
2571 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_new_device()
2572 int port1 = udev->portnum; in usb_new_device()
2575 err = sysfs_create_link(&udev->dev.kobj, in usb_new_device()
2581 &udev->dev.kobj, "device"); in usb_new_device()
2583 sysfs_remove_link(&udev->dev.kobj, "port"); in usb_new_device()
2591 (void) usb_create_ep_devs(&udev->dev, &udev->ep0, udev); in usb_new_device()
2592 usb_mark_last_busy(udev); in usb_new_device()
2593 pm_runtime_put_sync_autosuspend(&udev->dev); in usb_new_device()
2597 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in usb_new_device()
2598 pm_runtime_disable(&udev->dev); in usb_new_device()
2599 pm_runtime_set_suspended(&udev->dev); in usb_new_device()
2786 static bool use_new_scheme(struct usb_device *udev, int retry, in use_new_scheme() argument
2800 if (udev->speed >= USB_SPEED_SUPER) in use_new_scheme()
2833 struct usb_device *udev, unsigned int delay, bool warm) in hub_port_wait_reset() argument
2902 if (!udev) in hub_port_wait_reset()
2907 udev->rx_lanes = USB_EXT_PORT_RX_LANES(ext_portstatus) + 1; in hub_port_wait_reset()
2908 udev->tx_lanes = USB_EXT_PORT_TX_LANES(ext_portstatus) + 1; in hub_port_wait_reset()
2909 udev->ssp_rate = get_port_ssp_rate(hub->hdev, ext_portstatus); in hub_port_wait_reset()
2911 udev->rx_lanes = 1; in hub_port_wait_reset()
2912 udev->tx_lanes = 1; in hub_port_wait_reset()
2913 udev->ssp_rate = USB_SSP_GEN_UNKNOWN; in hub_port_wait_reset()
2916 udev->speed = USB_SPEED_WIRELESS; in hub_port_wait_reset()
2917 else if (udev->ssp_rate != USB_SSP_GEN_UNKNOWN) in hub_port_wait_reset()
2918 udev->speed = USB_SPEED_SUPER_PLUS; in hub_port_wait_reset()
2920 udev->speed = USB_SPEED_SUPER; in hub_port_wait_reset()
2922 udev->speed = USB_SPEED_HIGH; in hub_port_wait_reset()
2924 udev->speed = USB_SPEED_LOW; in hub_port_wait_reset()
2926 udev->speed = USB_SPEED_FULL; in hub_port_wait_reset()
2932 struct usb_device *udev, unsigned int delay, bool warm) in hub_port_reset() argument
2973 status = hub_port_wait_reset(hub, port1, udev, delay, in hub_port_reset()
2994 if (udev) in hub_port_reset()
3044 if (udev) { in hub_port_reset()
3045 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_port_reset()
3047 update_devnum(udev, 0); in hub_port_reset()
3052 hcd->driver->reset_device(hcd, udev); in hub_port_reset()
3054 usb_set_device_state(udev, USB_STATE_DEFAULT); in hub_port_reset()
3057 if (udev) in hub_port_reset()
3058 usb_set_device_state(udev, USB_STATE_NOTATTACHED); in hub_port_reset()
3119 static int check_port_resume_type(struct usb_device *udev, in check_port_resume_type() argument
3128 if (status == 0 && udev->reset_resume in check_port_resume_type()
3150 else if (!(portstatus & USB_PORT_STAT_ENABLE) && !udev->reset_resume) { in check_port_resume_type()
3151 if (udev->persist_enabled) in check_port_resume_type()
3152 udev->reset_resume = 1; in check_port_resume_type()
3160 } else if (udev->reset_resume) { in check_port_resume_type()
3183 int usb_disable_ltm(struct usb_device *udev) in usb_disable_ltm() argument
3185 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_disable_ltm()
3189 !usb_device_supports_ltm(udev)) in usb_disable_ltm()
3195 if (!udev->actconfig) in usb_disable_ltm()
3198 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_ltm()
3205 void usb_enable_ltm(struct usb_device *udev) in usb_enable_ltm() argument
3207 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_enable_ltm()
3211 !usb_device_supports_ltm(udev)) in usb_enable_ltm()
3217 if (!udev->actconfig) in usb_enable_ltm()
3220 usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_ltm()
3237 static int usb_enable_remote_wakeup(struct usb_device *udev) in usb_enable_remote_wakeup() argument
3239 if (udev->speed < USB_SPEED_SUPER) in usb_enable_remote_wakeup()
3240 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_remote_wakeup()
3245 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_enable_remote_wakeup()
3263 static int usb_disable_remote_wakeup(struct usb_device *udev) in usb_disable_remote_wakeup() argument
3265 if (udev->speed < USB_SPEED_SUPER) in usb_disable_remote_wakeup()
3266 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_remote_wakeup()
3271 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_disable_remote_wakeup()
3278 unsigned usb_wakeup_enabled_descendants(struct usb_device *udev) in usb_wakeup_enabled_descendants() argument
3280 struct usb_hub *hub = usb_hub_to_struct_hub(udev); in usb_wakeup_enabled_descendants()
3282 return udev->do_remote_wakeup + in usb_wakeup_enabled_descendants()
3335 int usb_port_suspend(struct usb_device *udev, pm_message_t msg) in usb_port_suspend() argument
3337 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_suspend()
3338 struct usb_port *port_dev = hub->ports[udev->portnum - 1]; in usb_port_suspend()
3339 int port1 = udev->portnum; in usb_port_suspend()
3351 if (udev->do_remote_wakeup) { in usb_port_suspend()
3352 status = usb_enable_remote_wakeup(udev); in usb_port_suspend()
3354 dev_dbg(&udev->dev, "won't remote wakeup, status %d\n", in usb_port_suspend()
3363 usb_disable_usb2_hardware_lpm(udev); in usb_port_suspend()
3365 if (usb_disable_ltm(udev)) { in usb_port_suspend()
3366 dev_err(&udev->dev, "Failed to disable LTM before suspend\n"); in usb_port_suspend()
3387 else if (PMSG_IS_AUTO(msg) || usb_wakeup_enabled_descendants(udev) > 0) in usb_port_suspend()
3418 usb_enable_ltm(udev); in usb_port_suspend()
3421 usb_enable_usb2_hardware_lpm(udev); in usb_port_suspend()
3423 if (udev->do_remote_wakeup) in usb_port_suspend()
3424 (void) usb_disable_remote_wakeup(udev); in usb_port_suspend()
3432 dev_dbg(&udev->dev, "usb %ssuspend, wakeup %d\n", in usb_port_suspend()
3434 udev->do_remote_wakeup); in usb_port_suspend()
3436 udev->port_is_suspended = 1; in usb_port_suspend()
3441 usb_set_device_state(udev, USB_STATE_SUSPENDED); in usb_port_suspend()
3444 if (status == 0 && !udev->do_remote_wakeup && udev->persist_enabled in usb_port_suspend()
3465 static int finish_port_resume(struct usb_device *udev) in finish_port_resume() argument
3471 dev_dbg(&udev->dev, "%s\n", in finish_port_resume()
3472 udev->reset_resume ? "finish reset-resume" : "finish resume"); in finish_port_resume()
3479 usb_set_device_state(udev, udev->actconfig in finish_port_resume()
3488 if (udev->reset_resume) { in finish_port_resume()
3496 if (udev->quirks & USB_QUIRK_RESET) in finish_port_resume()
3499 status = usb_reset_and_verify_device(udev); in finish_port_resume()
3508 status = usb_get_std_status(udev, USB_RECIP_DEVICE, 0, &devstatus); in finish_port_resume()
3511 if (status && !udev->reset_resume && udev->persist_enabled) { in finish_port_resume()
3512 dev_dbg(&udev->dev, "retry with reset-resume\n"); in finish_port_resume()
3513 udev->reset_resume = 1; in finish_port_resume()
3519 dev_dbg(&udev->dev, "gone after usb resume? status %d\n", in finish_port_resume()
3527 } else if (udev->actconfig && !udev->reset_resume) { in finish_port_resume()
3528 if (udev->speed < USB_SPEED_SUPER) { in finish_port_resume()
3530 status = usb_disable_remote_wakeup(udev); in finish_port_resume()
3532 status = usb_get_std_status(udev, USB_RECIP_INTERFACE, 0, in finish_port_resume()
3536 status = usb_disable_remote_wakeup(udev); in finish_port_resume()
3540 dev_dbg(&udev->dev, in finish_port_resume()
3572 static int wait_for_connected(struct usb_device *udev, in wait_for_connected() argument
3589 dev_dbg(&udev->dev, "Waited %dms for CONNECT\n", delay_ms); in wait_for_connected()
3627 int usb_port_resume(struct usb_device *udev, pm_message_t msg) in usb_port_resume() argument
3629 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_resume()
3630 struct usb_port *port_dev = hub->ports[udev->portnum - 1]; in usb_port_resume()
3631 int port1 = udev->portnum; in usb_port_resume()
3638 dev_dbg(&udev->dev, "can't resume usb port, status %d\n", in usb_port_resume()
3650 pm_wakeup_event(&udev->dev, 0); in usb_port_resume()
3664 dev_dbg(&udev->dev, "usb %sresume\n", in usb_port_resume()
3677 udev->port_is_suspended = 0; in usb_port_resume()
3692 if (udev->persist_enabled) in usb_port_resume()
3693 status = wait_for_connected(udev, hub, &port1, &portchange, in usb_port_resume()
3696 status = check_port_resume_type(udev, in usb_port_resume()
3699 status = finish_port_resume(udev); in usb_port_resume()
3701 dev_dbg(&udev->dev, "can't resume, status %d\n", status); in usb_port_resume()
3705 usb_enable_usb2_hardware_lpm(udev); in usb_port_resume()
3708 usb_enable_ltm(udev); in usb_port_resume()
3716 int usb_remote_wakeup(struct usb_device *udev) in usb_remote_wakeup() argument
3720 usb_lock_device(udev); in usb_remote_wakeup()
3721 if (udev->state == USB_STATE_SUSPENDED) { in usb_remote_wakeup()
3722 dev_dbg(&udev->dev, "usb %sresume\n", "wakeup-"); in usb_remote_wakeup()
3723 status = usb_autoresume_device(udev); in usb_remote_wakeup()
3726 usb_autosuspend_device(udev); in usb_remote_wakeup()
3729 usb_unlock_device(udev); in usb_remote_wakeup()
3740 struct usb_device *udev; in hub_handle_remote_wakeup() local
3746 udev = port_dev->child; in hub_handle_remote_wakeup()
3753 if (!udev || udev->state != USB_STATE_SUSPENDED || in hub_handle_remote_wakeup()
3760 if (udev) { in hub_handle_remote_wakeup()
3765 ret = usb_remote_wakeup(udev); in hub_handle_remote_wakeup()
3805 struct usb_device *udev = port_dev->child; in hub_suspend() local
3807 if (udev && udev->can_submit) { in hub_suspend()
3809 dev_name(&udev->dev)); in hub_suspend()
3813 if (udev) in hub_suspend()
3815 usb_wakeup_enabled_descendants(udev); in hub_suspend()
3850 struct usb_device *udev; in report_wakeup_requests() local
3872 udev = hub->ports[i]->child; in report_wakeup_requests()
3873 if (udev) in report_wakeup_requests()
3874 pm_wakeup_event(&udev->dev, 0); in report_wakeup_requests()
3940 static int usb_req_set_sel(struct usb_device *udev, enum usb3_link_state state) in usb_req_set_sel() argument
3949 if (udev->state != USB_STATE_CONFIGURED) in usb_req_set_sel()
3953 u1_sel = DIV_ROUND_UP(udev->u1_params.sel, 1000); in usb_req_set_sel()
3954 u1_pel = DIV_ROUND_UP(udev->u1_params.pel, 1000); in usb_req_set_sel()
3955 u2_sel = DIV_ROUND_UP(udev->u2_params.sel, 1000); in usb_req_set_sel()
3956 u2_pel = DIV_ROUND_UP(udev->u2_params.pel, 1000); in usb_req_set_sel()
3972 dev_dbg(&udev->dev, "Device-initiated %s disabled due to long SEL %llu us or PEL %llu us\n", in usb_req_set_sel()
4008 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_req_set_sel()
4021 static int usb_set_device_initiated_lpm(struct usb_device *udev, in usb_set_device_initiated_lpm() argument
4035 dev_warn(&udev->dev, "%s: Can't %s non-U1 or U2 state.\n", in usb_set_device_initiated_lpm()
4040 if (udev->state != USB_STATE_CONFIGURED) { in usb_set_device_initiated_lpm()
4041 dev_dbg(&udev->dev, "%s: Can't %s %s state " in usb_set_device_initiated_lpm()
4053 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_set_device_initiated_lpm()
4060 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_set_device_initiated_lpm()
4068 dev_warn(&udev->dev, "%s of device-initiated %s failed.\n", in usb_set_device_initiated_lpm()
4076 static int usb_set_lpm_timeout(struct usb_device *udev, in usb_set_lpm_timeout() argument
4090 dev_warn(&udev->dev, "%s: Can't set timeout for non-U1 or U2 state.\n", in usb_set_lpm_timeout()
4097 dev_warn(&udev->dev, "Failed to set %s timeout to 0x%x, " in usb_set_lpm_timeout()
4103 ret = set_port_feature(udev->parent, in usb_set_lpm_timeout()
4104 USB_PORT_LPM_TIMEOUT(timeout) | udev->portnum, in usb_set_lpm_timeout()
4107 dev_warn(&udev->dev, "Failed to set %s timeout to 0x%x," in usb_set_lpm_timeout()
4113 udev->u1_params.timeout = timeout; in usb_set_lpm_timeout()
4115 udev->u2_params.timeout = timeout; in usb_set_lpm_timeout()
4124 static bool usb_device_may_initiate_lpm(struct usb_device *udev, in usb_device_may_initiate_lpm() argument
4131 sel = DIV_ROUND_UP(udev->u1_params.sel, 1000); in usb_device_may_initiate_lpm()
4133 sel = DIV_ROUND_UP(udev->u2_params.sel, 1000); in usb_device_may_initiate_lpm()
4137 for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { in usb_device_may_initiate_lpm()
4142 intf = udev->actconfig->interface[i]; in usb_device_may_initiate_lpm()
4175 static void usb_enable_link_state(struct usb_hcd *hcd, struct usb_device *udev, in usb_enable_link_state() argument
4179 __u8 u1_mel = udev->bos->ss_cap->bU1devExitLat; in usb_enable_link_state()
4180 __le16 u2_mel = udev->bos->ss_cap->bU2DevExitLat; in usb_enable_link_state()
4194 ret = usb_req_set_sel(udev, state); in usb_enable_link_state()
4196 dev_warn(&udev->dev, "Set SEL for device-initiated %s failed.\n", in usb_enable_link_state()
4206 timeout = hcd->driver->enable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4213 dev_warn(&udev->dev, "Could not enable %s link state, " in usb_enable_link_state()
4219 if (usb_set_lpm_timeout(udev, state, timeout)) { in usb_enable_link_state()
4224 hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4231 if (udev->actconfig && in usb_enable_link_state()
4232 usb_device_may_initiate_lpm(udev, state)) { in usb_enable_link_state()
4233 if (usb_set_device_initiated_lpm(udev, state, true)) { in usb_enable_link_state()
4238 usb_set_lpm_timeout(udev, state, 0); in usb_enable_link_state()
4239 hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state); in usb_enable_link_state()
4245 udev->usb3_lpm_u1_enabled = 1; in usb_enable_link_state()
4247 udev->usb3_lpm_u2_enabled = 1; in usb_enable_link_state()
4264 static int usb_disable_link_state(struct usb_hcd *hcd, struct usb_device *udev, in usb_disable_link_state() argument
4272 dev_warn(&udev->dev, "%s: Can't disable non-U1 or U2 state.\n", in usb_disable_link_state()
4277 if (usb_set_lpm_timeout(udev, state, 0)) in usb_disable_link_state()
4280 usb_set_device_initiated_lpm(udev, state, false); in usb_disable_link_state()
4282 if (hcd->driver->disable_usb3_lpm_timeout(hcd, udev, state)) in usb_disable_link_state()
4283 dev_warn(&udev->dev, "Could not disable xHCI %s timeout, " in usb_disable_link_state()
4294 udev->usb3_lpm_u1_enabled = 0; in usb_disable_link_state()
4296 udev->usb3_lpm_u2_enabled = 0; in usb_disable_link_state()
4308 int usb_disable_lpm(struct usb_device *udev) in usb_disable_lpm() argument
4312 if (!udev || !udev->parent || in usb_disable_lpm()
4313 udev->speed < USB_SPEED_SUPER || in usb_disable_lpm()
4314 !udev->lpm_capable || in usb_disable_lpm()
4315 udev->state < USB_STATE_CONFIGURED) in usb_disable_lpm()
4318 hcd = bus_to_hcd(udev->bus); in usb_disable_lpm()
4322 udev->lpm_disable_count++; in usb_disable_lpm()
4323 if ((udev->u1_params.timeout == 0 && udev->u2_params.timeout == 0)) in usb_disable_lpm()
4327 if (usb_disable_link_state(hcd, udev, USB3_LPM_U1)) in usb_disable_lpm()
4329 if (usb_disable_link_state(hcd, udev, USB3_LPM_U2)) in usb_disable_lpm()
4335 usb_enable_lpm(udev); in usb_disable_lpm()
4341 int usb_unlocked_disable_lpm(struct usb_device *udev) in usb_unlocked_disable_lpm() argument
4343 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_unlocked_disable_lpm()
4350 ret = usb_disable_lpm(udev); in usb_unlocked_disable_lpm()
4365 void usb_enable_lpm(struct usb_device *udev) in usb_enable_lpm() argument
4371 if (!udev || !udev->parent || in usb_enable_lpm()
4372 udev->speed < USB_SPEED_SUPER || in usb_enable_lpm()
4373 !udev->lpm_capable || in usb_enable_lpm()
4374 udev->state < USB_STATE_CONFIGURED) in usb_enable_lpm()
4377 udev->lpm_disable_count--; in usb_enable_lpm()
4378 hcd = bus_to_hcd(udev->bus); in usb_enable_lpm()
4386 if (udev->lpm_disable_count > 0) in usb_enable_lpm()
4389 hub = usb_hub_to_struct_hub(udev->parent); in usb_enable_lpm()
4393 port_dev = hub->ports[udev->portnum - 1]; in usb_enable_lpm()
4396 usb_enable_link_state(hcd, udev, USB3_LPM_U1); in usb_enable_lpm()
4399 usb_enable_link_state(hcd, udev, USB3_LPM_U2); in usb_enable_lpm()
4404 void usb_unlocked_enable_lpm(struct usb_device *udev) in usb_unlocked_enable_lpm() argument
4406 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_unlocked_enable_lpm()
4412 usb_enable_lpm(udev); in usb_unlocked_enable_lpm()
4421 struct usb_device *udev = port_dev->child; in hub_usb3_port_prepare_disable() local
4424 if (udev && udev->port_is_suspended && udev->do_remote_wakeup) { in hub_usb3_port_prepare_disable()
4429 ret = usb_disable_remote_wakeup(udev); in hub_usb3_port_prepare_disable()
4432 dev_warn(&udev->dev, in hub_usb3_port_prepare_disable()
4434 udev->do_remote_wakeup = 0; in hub_usb3_port_prepare_disable()
4447 int usb_disable_lpm(struct usb_device *udev) in usb_disable_lpm() argument
4453 void usb_enable_lpm(struct usb_device *udev) { } in usb_enable_lpm() argument
4456 int usb_unlocked_disable_lpm(struct usb_device *udev) in usb_unlocked_disable_lpm() argument
4462 void usb_unlocked_enable_lpm(struct usb_device *udev) { } in usb_unlocked_enable_lpm() argument
4465 int usb_disable_ltm(struct usb_device *udev) in usb_disable_ltm() argument
4471 void usb_enable_ltm(struct usb_device *udev) { } in usb_enable_ltm() argument
4517 int usb_port_disable(struct usb_device *udev) in usb_port_disable() argument
4519 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_port_disable()
4521 return hub_port_disable(hub, udev->portnum, 0); in usb_port_disable()
4582 void usb_ep0_reinit(struct usb_device *udev) in usb_ep0_reinit() argument
4584 usb_disable_endpoint(udev, 0 + USB_DIR_IN, true); in usb_ep0_reinit()
4585 usb_disable_endpoint(udev, 0 + USB_DIR_OUT, true); in usb_ep0_reinit()
4586 usb_enable_endpoint(udev, &udev->ep0, true); in usb_ep0_reinit()
4593 static int hub_set_address(struct usb_device *udev, int devnum) in hub_set_address() argument
4596 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_set_address()
4604 if (udev->state == USB_STATE_ADDRESS) in hub_set_address()
4606 if (udev->state != USB_STATE_DEFAULT) in hub_set_address()
4609 retval = hcd->driver->address_device(hcd, udev); in hub_set_address()
4611 retval = usb_control_msg(udev, usb_sndaddr0pipe(), in hub_set_address()
4615 update_devnum(udev, devnum); in hub_set_address()
4617 usb_set_device_state(udev, USB_STATE_ADDRESS); in hub_set_address()
4618 usb_ep0_reinit(udev); in hub_set_address()
4632 static void hub_set_initial_usb2_lpm_policy(struct usb_device *udev) in hub_set_initial_usb2_lpm_policy() argument
4634 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in hub_set_initial_usb2_lpm_policy()
4637 if (!udev->usb2_hw_lpm_capable || !udev->bos) in hub_set_initial_usb2_lpm_policy()
4641 connect_type = hub->ports[udev->portnum - 1]->connect_type; in hub_set_initial_usb2_lpm_policy()
4643 if ((udev->bos->ext_cap->bmAttributes & cpu_to_le32(USB_BESL_SUPPORT)) || in hub_set_initial_usb2_lpm_policy()
4645 udev->usb2_hw_lpm_allowed = 1; in hub_set_initial_usb2_lpm_policy()
4646 usb_enable_usb2_hardware_lpm(udev); in hub_set_initial_usb2_lpm_policy()
4650 static int hub_enable_device(struct usb_device *udev) in hub_enable_device() argument
4652 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in hub_enable_device()
4656 if (udev->state == USB_STATE_ADDRESS) in hub_enable_device()
4658 if (udev->state != USB_STATE_DEFAULT) in hub_enable_device()
4661 return hcd->driver->enable_device(hcd, udev); in hub_enable_device()
4675 hub_port_init(struct usb_hub *hub, struct usb_device *udev, int port1, in hub_port_init() argument
4683 enum usb_device_speed oldspeed = udev->speed; in hub_port_init()
4685 int devnum = udev->devnum; in hub_port_init()
4705 retval = hub_port_reset(hub, port1, udev, delay, false); in hub_port_init()
4713 if (oldspeed != USB_SPEED_UNKNOWN && oldspeed != udev->speed && in hub_port_init()
4714 !(oldspeed == USB_SPEED_SUPER && udev->speed > oldspeed)) { in hub_port_init()
4715 dev_dbg(&udev->dev, "device reset changed speed!\n"); in hub_port_init()
4718 oldspeed = udev->speed; in hub_port_init()
4725 switch (udev->speed) { in hub_port_init()
4729 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(512); in hub_port_init()
4732 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(64); in hub_port_init()
4739 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(64); in hub_port_init()
4742 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(8); in hub_port_init()
4748 if (udev->speed == USB_SPEED_WIRELESS) in hub_port_init()
4751 speed = usb_speed_string(udev->speed); in hub_port_init()
4760 if (udev->bus->controller->driver) in hub_port_init()
4761 driver_name = udev->bus->controller->driver->name; in hub_port_init()
4763 driver_name = udev->bus->sysdev->driver->name; in hub_port_init()
4765 if (udev->speed < USB_SPEED_SUPER) in hub_port_init()
4766 dev_info(&udev->dev, in hub_port_init()
4768 (udev->config) ? "reset" : "new", speed, in hub_port_init()
4773 udev->tt = hdev->tt; in hub_port_init()
4774 udev->ttport = hdev->ttport; in hub_port_init()
4775 } else if (udev->speed != USB_SPEED_HIGH in hub_port_init()
4778 dev_err(&udev->dev, "parent hub has no TT\n"); in hub_port_init()
4782 udev->tt = &hub->tt; in hub_port_init()
4783 udev->ttport = port1; in hub_port_init()
4798 do_new_scheme = use_new_scheme(udev, retry_counter, port_dev); in hub_port_init()
4805 retval = hub_enable_device(udev); in hub_port_init()
4807 dev_err(&udev->dev, in hub_port_init()
4827 r = usb_control_msg(udev, usb_rcvaddr0pipe(), in hub_port_init()
4853 udev->speed > USB_SPEED_FULL)) in hub_port_init()
4856 udev->descriptor.bMaxPacketSize0 = in hub_port_init()
4860 retval = hub_port_reset(hub, port1, udev, delay, false); in hub_port_init()
4863 if (oldspeed != udev->speed) { in hub_port_init()
4864 dev_dbg(&udev->dev, in hub_port_init()
4871 dev_err(&udev->dev, "device descriptor read/64, error %d\n", in hub_port_init()
4884 if (udev->wusb == 0) { in hub_port_init()
4886 retval = hub_set_address(udev, devnum); in hub_port_init()
4893 dev_err(&udev->dev, "device not accepting address %d, error %d\n", in hub_port_init()
4897 if (udev->speed >= USB_SPEED_SUPER) { in hub_port_init()
4898 devnum = udev->devnum; in hub_port_init()
4899 dev_info(&udev->dev, in hub_port_init()
4901 (udev->config) ? "reset" : "new", in hub_port_init()
4902 (udev->speed == USB_SPEED_SUPER_PLUS) ? in hub_port_init()
4904 (udev->ssp_rate == USB_SSP_GEN_2x2) ? in hub_port_init()
4906 (udev->ssp_rate == USB_SSP_GEN_2x1) ? in hub_port_init()
4908 (udev->ssp_rate == USB_SSP_GEN_1x2) ? in hub_port_init()
4922 retval = usb_get_device_descriptor(udev, 8); in hub_port_init()
4925 dev_err(&udev->dev, in hub_port_init()
4935 delay = udev->parent->hub_delay; in hub_port_init()
4936 udev->hub_delay = min_t(u32, delay, in hub_port_init()
4938 retval = usb_set_isoch_delay(udev); in hub_port_init()
4940 dev_dbg(&udev->dev, in hub_port_init()
4957 if ((udev->speed >= USB_SPEED_SUPER) && in hub_port_init()
4958 (le16_to_cpu(udev->descriptor.bcdUSB) < 0x0300)) { in hub_port_init()
4959 dev_err(&udev->dev, "got a wrong device descriptor, " in hub_port_init()
4961 hub_port_reset(hub, port1, udev, in hub_port_init()
4967 if (udev->descriptor.bMaxPacketSize0 == 0xff || in hub_port_init()
4968 udev->speed >= USB_SPEED_SUPER) in hub_port_init()
4971 i = udev->descriptor.bMaxPacketSize0; in hub_port_init()
4972 if (usb_endpoint_maxp(&udev->ep0.desc) != i) { in hub_port_init()
4973 if (udev->speed == USB_SPEED_LOW || in hub_port_init()
4975 dev_err(&udev->dev, "Invalid ep0 maxpacket: %d\n", i); in hub_port_init()
4979 if (udev->speed == USB_SPEED_FULL) in hub_port_init()
4980 dev_dbg(&udev->dev, "ep0 maxpacket = %d\n", i); in hub_port_init()
4982 dev_warn(&udev->dev, "Using ep0 maxpacket: %d\n", i); in hub_port_init()
4983 udev->ep0.desc.wMaxPacketSize = cpu_to_le16(i); in hub_port_init()
4984 usb_ep0_reinit(udev); in hub_port_init()
4987 retval = usb_get_device_descriptor(udev, USB_DT_DEVICE_SIZE); in hub_port_init()
4988 if (retval < (signed)sizeof(udev->descriptor)) { in hub_port_init()
4990 dev_err(&udev->dev, "device descriptor read/all, error %d\n", in hub_port_init()
4997 usb_detect_quirks(udev); in hub_port_init()
4999 if (udev->wusb == 0 && le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0201) { in hub_port_init()
5000 retval = usb_get_bos_descriptor(udev); in hub_port_init()
5002 udev->lpm_capable = usb_device_supports_lpm(udev); in hub_port_init()
5003 usb_set_lpm_parameters(udev); in hub_port_init()
5010 hcd->driver->update_device(hcd, udev); in hub_port_init()
5011 hub_set_initial_usb2_lpm_policy(udev); in hub_port_init()
5015 update_devnum(udev, devnum); /* for disconnect processing */ in hub_port_init()
5021 check_highspeed(struct usb_hub *hub, struct usb_device *udev, int port1) in check_highspeed() argument
5026 if (udev->quirks & USB_QUIRK_DEVICE_QUALIFIER) in check_highspeed()
5033 status = usb_get_descriptor(udev, USB_DT_DEVICE_QUALIFIER, 0, in check_highspeed()
5036 dev_info(&udev->dev, "not running at top speed; " in check_highspeed()
5061 struct usb_device *udev = port_dev->child; in hub_power_remaining() local
5065 if (!udev) in hub_power_remaining()
5067 if (hub_is_superspeed(udev)) in hub_power_remaining()
5076 if (udev->actconfig) in hub_power_remaining()
5077 delta = usb_get_max_power(udev, udev->actconfig); in hub_power_remaining()
5078 else if (port1 != udev->bus->otg_port || hdev->parent) in hub_power_remaining()
5096 static int descriptors_changed(struct usb_device *udev, in descriptors_changed() argument
5108 if (memcmp(&udev->descriptor, old_device_descriptor, in descriptors_changed()
5112 if ((old_bos && !udev->bos) || (!old_bos && udev->bos)) in descriptors_changed()
5114 if (udev->bos) { in descriptors_changed()
5115 len = le16_to_cpu(udev->bos->desc->wTotalLength); in descriptors_changed()
5118 if (memcmp(udev->bos->desc, old_bos->desc, len)) in descriptors_changed()
5128 if (udev->serial) in descriptors_changed()
5129 serial_len = strlen(udev->serial) + 1; in descriptors_changed()
5132 for (index = 0; index < udev->descriptor.bNumConfigurations; index++) { in descriptors_changed()
5133 old_length = le16_to_cpu(udev->config[index].desc.wTotalLength); in descriptors_changed()
5142 for (index = 0; index < udev->descriptor.bNumConfigurations; index++) { in descriptors_changed()
5143 old_length = le16_to_cpu(udev->config[index].desc.wTotalLength); in descriptors_changed()
5144 length = usb_get_descriptor(udev, USB_DT_CONFIG, index, buf, in descriptors_changed()
5147 dev_dbg(&udev->dev, "config index %d, error %d\n", in descriptors_changed()
5152 if (memcmp(buf, udev->rawdescriptors[index], old_length) in descriptors_changed()
5154 dev_dbg(&udev->dev, "config index %d changed (#%d)\n", in descriptors_changed()
5164 length = usb_string(udev, udev->descriptor.iSerialNumber, in descriptors_changed()
5167 dev_dbg(&udev->dev, "serial string error %d\n", in descriptors_changed()
5170 } else if (memcmp(buf, udev->serial, length) != 0) { in descriptors_changed()
5171 dev_dbg(&udev->dev, "serial string changed\n"); in descriptors_changed()
5189 struct usb_device *udev = port_dev->child; in hub_port_connect() local
5194 if (udev) { in hub_port_connect()
5196 usb_phy_notify_disconnect(hcd->usb_phy, udev->speed); in hub_port_connect()
5255 udev = usb_alloc_dev(hdev, hdev->bus, port1); in hub_port_connect()
5256 if (!udev) { in hub_port_connect()
5264 usb_set_device_state(udev, USB_STATE_POWERED); in hub_port_connect()
5265 udev->bus_mA = hub->mA_per_port; in hub_port_connect()
5266 udev->level = hdev->level + 1; in hub_port_connect()
5267 udev->wusb = hub_is_wusb(hub); in hub_port_connect()
5271 udev->speed = USB_SPEED_SUPER; in hub_port_connect()
5273 udev->speed = USB_SPEED_UNKNOWN; in hub_port_connect()
5275 choose_devnum(udev); in hub_port_connect()
5276 if (udev->devnum <= 0) { in hub_port_connect()
5282 status = hub_port_init(hub, udev, port1, i); in hub_port_connect()
5290 if (udev->quirks & USB_QUIRK_DELAY_INIT) in hub_port_connect()
5299 if (udev->descriptor.bDeviceClass == USB_CLASS_HUB in hub_port_connect()
5300 && udev->bus_mA <= unit_load) { in hub_port_connect()
5303 status = usb_get_std_status(udev, USB_RECIP_DEVICE, 0, in hub_port_connect()
5306 dev_dbg(&udev->dev, "get status %d ?\n", status); in hub_port_connect()
5310 dev_err(&udev->dev, in hub_port_connect()
5326 if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0200 in hub_port_connect()
5327 && udev->speed == USB_SPEED_FULL in hub_port_connect()
5329 check_highspeed(hub, udev, port1); in hub_port_connect()
5347 port_dev->child = udev; in hub_port_connect()
5353 status = usb_new_device(udev); in hub_port_connect()
5363 udev->speed); in hub_port_connect()
5379 usb_ep0_reinit(udev); in hub_port_connect()
5380 release_devnum(udev); in hub_port_connect()
5381 hub_free_dev(udev); in hub_port_connect()
5386 usb_put_dev(udev); in hub_port_connect()
5428 struct usb_device *udev = port_dev->child; in hub_port_connect_change() local
5449 if ((portstatus & USB_PORT_STAT_CONNECTION) && udev && in hub_port_connect_change()
5450 udev->state != USB_STATE_NOTATTACHED) { in hub_port_connect_change()
5458 descriptor = udev->descriptor; in hub_port_connect_change()
5459 retval = usb_get_device_descriptor(udev, in hub_port_connect_change()
5460 sizeof(udev->descriptor)); in hub_port_connect_change()
5462 dev_dbg(&udev->dev, in hub_port_connect_change()
5466 if (descriptors_changed(udev, &descriptor, in hub_port_connect_change()
5467 udev->bos)) { in hub_port_connect_change()
5468 dev_dbg(&udev->dev, in hub_port_connect_change()
5471 udev->descriptor = descriptor; in hub_port_connect_change()
5477 } else if (udev->state == USB_STATE_SUSPENDED && in hub_port_connect_change()
5478 udev->persist_enabled) { in hub_port_connect_change()
5483 status = usb_remote_wakeup(udev); in hub_port_connect_change()
5543 struct usb_device *udev = port_dev->child; in port_event() local
5571 && !connect_change && udev) { in port_event()
5627 if (!udev || !(portstatus & USB_PORT_STAT_CONNECTION) in port_event()
5628 || udev->state == USB_STATE_NOTATTACHED) { in port_event()
5634 usb_lock_device(udev); in port_event()
5635 usb_reset_device(udev); in port_event()
5636 usb_unlock_device(udev); in port_event()
5887 static int usb_reset_and_verify_device(struct usb_device *udev) in usb_reset_and_verify_device() argument
5889 struct usb_device *parent_hdev = udev->parent; in usb_reset_and_verify_device()
5891 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_reset_and_verify_device()
5892 struct usb_device_descriptor descriptor = udev->descriptor; in usb_reset_and_verify_device()
5895 int port1 = udev->portnum; in usb_reset_and_verify_device()
5897 if (udev->state == USB_STATE_NOTATTACHED || in usb_reset_and_verify_device()
5898 udev->state == USB_STATE_SUSPENDED) { in usb_reset_and_verify_device()
5899 dev_dbg(&udev->dev, "device reset not allowed in state %d\n", in usb_reset_and_verify_device()
5900 udev->state); in usb_reset_and_verify_device()
5912 usb_disable_usb2_hardware_lpm(udev); in usb_reset_and_verify_device()
5918 ret = usb_unlocked_disable_lpm(udev); in usb_reset_and_verify_device()
5920 dev_err(&udev->dev, "%s Failed to disable LPM\n", __func__); in usb_reset_and_verify_device()
5924 bos = udev->bos; in usb_reset_and_verify_device()
5925 udev->bos = NULL; in usb_reset_and_verify_device()
5933 usb_ep0_reinit(udev); in usb_reset_and_verify_device()
5934 ret = hub_port_init(parent_hub, udev, port1, i); in usb_reset_and_verify_device()
5944 if (descriptors_changed(udev, &descriptor, bos)) { in usb_reset_and_verify_device()
5945 dev_info(&udev->dev, "device firmware changed\n"); in usb_reset_and_verify_device()
5946 udev->descriptor = descriptor; /* for disconnect() calls */ in usb_reset_and_verify_device()
5951 if (!udev->actconfig) in usb_reset_and_verify_device()
5955 ret = usb_hcd_alloc_bandwidth(udev, udev->actconfig, NULL, NULL); in usb_reset_and_verify_device()
5957 dev_warn(&udev->dev, in usb_reset_and_verify_device()
5963 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), in usb_reset_and_verify_device()
5965 udev->actconfig->desc.bConfigurationValue, 0, in usb_reset_and_verify_device()
5968 dev_err(&udev->dev, in usb_reset_and_verify_device()
5970 udev->actconfig->desc.bConfigurationValue, ret); in usb_reset_and_verify_device()
5975 usb_set_device_state(udev, USB_STATE_CONFIGURED); in usb_reset_and_verify_device()
5983 for (i = 0; i < udev->actconfig->desc.bNumInterfaces; i++) { in usb_reset_and_verify_device()
5984 struct usb_host_config *config = udev->actconfig; in usb_reset_and_verify_device()
5990 usb_disable_interface(udev, intf, true); in usb_reset_and_verify_device()
5991 usb_enable_interface(udev, intf, true); in usb_reset_and_verify_device()
5999 ret = usb_set_interface(udev, desc->bInterfaceNumber, in usb_reset_and_verify_device()
6004 dev_err(&udev->dev, "failed to restore interface %d " in usb_reset_and_verify_device()
6018 usb_enable_usb2_hardware_lpm(udev); in usb_reset_and_verify_device()
6019 usb_unlocked_enable_lpm(udev); in usb_reset_and_verify_device()
6020 usb_enable_ltm(udev); in usb_reset_and_verify_device()
6021 usb_release_bos_descriptor(udev); in usb_reset_and_verify_device()
6022 udev->bos = bos; in usb_reset_and_verify_device()
6026 usb_release_bos_descriptor(udev); in usb_reset_and_verify_device()
6027 udev->bos = bos; in usb_reset_and_verify_device()
6055 int usb_reset_device(struct usb_device *udev) in usb_reset_device() argument
6061 struct usb_host_config *config = udev->actconfig; in usb_reset_device()
6062 struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent); in usb_reset_device()
6064 if (udev->state == USB_STATE_NOTATTACHED) { in usb_reset_device()
6065 dev_dbg(&udev->dev, "device reset not allowed in state %d\n", in usb_reset_device()
6066 udev->state); in usb_reset_device()
6070 if (!udev->parent) { in usb_reset_device()
6072 dev_dbg(&udev->dev, "%s for root hub!\n", __func__); in usb_reset_device()
6076 port_dev = hub->ports[udev->portnum - 1]; in usb_reset_device()
6090 usb_autoresume_device(udev); in usb_reset_device()
6112 ret = usb_reset_and_verify_device(udev); in usb_reset_device()
6135 usb_unbind_and_rebind_marked_interfaces(udev); in usb_reset_device()
6138 usb_autosuspend_device(udev); in usb_reset_device()