Lines Matching +full:self +full:- +full:powered
1 // SPDX-License-Identifier: GPL-2.0+
4 * (C) Copyright Johannes Erdfelt 1999-2001
9 * (C) Copyright David Brownell 2000-2002
23 #include <linux/dma-mapping.h>
45 /*-------------------------------------------------------------------------*/
51 * HCD-specific behaviors/bugs.
70 * Roman Weissgaerber, Rory Bolt, Greg Kroah-Hartman, ...
73 * 2002-02-21 Pull in most of the usb_bus support from usb.c; some
75 * 2001-12-12 Initial patch version for Linux 2.5.1 kernel.
78 /*-------------------------------------------------------------------------*/
107 /*-------------------------------------------------------------------------*/
113 /*-------------------------------------------------------------------------*/
225 /*-------------------------------------------------------------------------*/
240 6: Self-powered,
273 0xff /* __u8 ep_bInterval; (255ms -- usb 2.0 spec) */
287 6: Self-powered,
322 0x0c /* __u8 ep_bInterval; (256ms -- usb 2.0 spec) */
335 6: Self-powered,
359 0x0c, /* __u8 ep_bInterval; (256ms -- usb 2.0 spec) */
371 * -1 is authorized for all devices except wireless (old behaviour)
376 #define USB_AUTHORIZE_WIRED -1
385 "authorized, 2 is authorized for internal devices, -1 is "
387 /*-------------------------------------------------------------------------*/
390 * ascii2desc() - Helper routine for producing UTF-16LE string descriptors
391 * @s: Null-terminated ASCII (actually ISO-8859-1) string
392 * @buf: Buffer for USB string descriptor (header + UTF-16LE)
415 while (n--) { in ascii2desc()
417 if (!n--) in ascii2desc()
426 * rh_string() - provides string descriptors for root hub
448 /* Array of LANGID codes (0x0409 is MSFT-speak for "en-us") */ in rh_string()
456 s = hcd->self.bus_name; in rh_string()
460 s = hcd->product_desc; in rh_string()
464 snprintf (buf, sizeof buf, "%s %s %s", init_utsname()->sysname, in rh_string()
465 init_utsname()->release, hcd->driver->description); in rh_string()
482 u8 *ubuf = urb->transfer_buffer; in rh_call_control()
498 urb->hcpriv = hcd; /* Indicate it's queued */ in rh_call_control()
500 cmd = (struct usb_ctrlrequest *) urb->setup_packet; in rh_call_control()
501 typeReq = (cmd->bRequestType << 8) | cmd->bRequest; in rh_call_control()
502 wValue = le16_to_cpu (cmd->wValue); in rh_call_control()
503 wIndex = le16_to_cpu (cmd->wIndex); in rh_call_control()
504 wLength = le16_to_cpu (cmd->wLength); in rh_call_control()
506 if (wLength > urb->transfer_buffer_length) in rh_call_control()
516 status = -ENOMEM; in rh_call_control()
523 urb->actual_length = 0; in rh_call_control()
545 tbuf[0] = (device_may_wakeup(&hcd->self.root_hub->dev) in rh_call_control()
553 device_set_wakeup_enable(&hcd->self.root_hub->dev, 0); in rh_call_control()
558 if (device_can_wakeup(&hcd->self.root_hub->dev) in rh_call_control()
560 device_set_wakeup_enable(&hcd->self.root_hub->dev, 1); in rh_call_control()
573 switch (hcd->speed) { in rh_call_control()
594 if (hcd->has_tt) in rh_call_control()
598 switch (hcd->speed) { in rh_call_control()
617 if (device_can_wakeup(&hcd->self.root_hub->dev)) in rh_call_control()
622 urb->actual_length = rh_string(wValue & 0xff, in rh_call_control()
624 else /* unsupported IDs --> "protocol stall" */ in rh_call_control()
640 /* wValue == urb->dev->devaddr */ in rh_call_control()
641 dev_dbg (hcd->self.controller, "root hub device address %d\n", in rh_call_control()
657 dev_dbg (hcd->self.controller, "no endpoint features yet\n"); in rh_call_control()
664 /* non-generic request */ in rh_call_control()
683 status = hcd->driver->hub_control (hcd, in rh_call_control()
688 usb_hub_adjust_deviceremovable(hcd->self.root_hub, in rh_call_control()
693 status = -EPIPE; in rh_call_control()
698 if (status != -EPIPE) { in rh_call_control()
699 dev_dbg (hcd->self.controller, in rh_call_control()
711 if (urb->transfer_buffer_length < len) in rh_call_control()
712 len = urb->transfer_buffer_length; in rh_call_control()
713 urb->actual_length = len; in rh_call_control()
721 ((struct usb_config_descriptor *)ubuf)->bmAttributes in rh_call_control()
728 ((struct usb_device_descriptor *) ubuf)-> in rh_call_control()
743 /*-------------------------------------------------------------------------*/
760 if (unlikely(!hcd->rh_pollable)) in usb_hcd_poll_rh_status()
762 if (!hcd->uses_new_polling && !hcd->status_urb) in usb_hcd_poll_rh_status()
765 length = hcd->driver->hub_status_data(hcd, buffer); in usb_hcd_poll_rh_status()
770 urb = hcd->status_urb; in usb_hcd_poll_rh_status()
772 clear_bit(HCD_FLAG_POLL_PENDING, &hcd->flags); in usb_hcd_poll_rh_status()
773 hcd->status_urb = NULL; in usb_hcd_poll_rh_status()
774 urb->actual_length = length; in usb_hcd_poll_rh_status()
775 memcpy(urb->transfer_buffer, buffer, length); in usb_hcd_poll_rh_status()
781 set_bit(HCD_FLAG_POLL_PENDING, &hcd->flags); in usb_hcd_poll_rh_status()
790 if (hcd->uses_new_polling ? HCD_POLL_RH(hcd) : in usb_hcd_poll_rh_status()
791 (length == 0 && hcd->status_urb != NULL)) in usb_hcd_poll_rh_status()
792 mod_timer (&hcd->rh_timer, (jiffies/(HZ/4) + 1) * (HZ/4)); in usb_hcd_poll_rh_status()
804 /*-------------------------------------------------------------------------*/
810 unsigned len = 1 + (urb->dev->maxchild / 8); in rh_queue_status()
813 if (hcd->status_urb || urb->transfer_buffer_length < len) { in rh_queue_status()
814 dev_dbg (hcd->self.controller, "not queuing rh status urb\n"); in rh_queue_status()
815 retval = -EINVAL; in rh_queue_status()
823 hcd->status_urb = urb; in rh_queue_status()
824 urb->hcpriv = hcd; /* indicate it's queued */ in rh_queue_status()
825 if (!hcd->uses_new_polling) in rh_queue_status()
826 mod_timer(&hcd->rh_timer, (jiffies/(HZ/4) + 1) * (HZ/4)); in rh_queue_status()
830 mod_timer(&hcd->rh_timer, jiffies); in rh_queue_status()
839 if (usb_endpoint_xfer_int(&urb->ep->desc)) in rh_urb_enqueue()
841 if (usb_endpoint_xfer_control(&urb->ep->desc)) in rh_urb_enqueue()
843 return -EINVAL; in rh_urb_enqueue()
846 /*-------------------------------------------------------------------------*/
848 /* Unlinks of root-hub control URBs are legal, but they don't do anything
861 if (usb_endpoint_num(&urb->ep->desc) == 0) { /* Control URB */ in usb_rh_urb_dequeue()
865 if (!hcd->uses_new_polling) in usb_rh_urb_dequeue()
866 del_timer (&hcd->rh_timer); in usb_rh_urb_dequeue()
867 if (urb == hcd->status_urb) { in usb_rh_urb_dequeue()
868 hcd->status_urb = NULL; in usb_rh_urb_dequeue()
879 /*-------------------------------------------------------------------------*/
882 * usb_bus_init - shared initialization code
890 memset (&bus->devmap, 0, sizeof(struct usb_devmap)); in usb_bus_init()
892 bus->devnum_next = 1; in usb_bus_init()
894 bus->root_hub = NULL; in usb_bus_init()
895 bus->busnum = -1; in usb_bus_init()
896 bus->bandwidth_allocated = 0; in usb_bus_init()
897 bus->bandwidth_int_reqs = 0; in usb_bus_init()
898 bus->bandwidth_isoc_reqs = 0; in usb_bus_init()
899 mutex_init(&bus->devnum_next_mutex); in usb_bus_init()
902 /*-------------------------------------------------------------------------*/
905 * usb_register_bus - registers the USB host controller with the usb core
916 int result = -E2BIG; in usb_register_bus()
925 bus->busnum = busnum; in usb_register_bus()
930 dev_info (bus->controller, "new USB bus registered, assigned bus " in usb_register_bus()
931 "number %d\n", bus->busnum); in usb_register_bus()
940 * usb_deregister_bus - deregisters the USB host controller
949 dev_info (bus->controller, "USB bus %d deregistered\n", bus->busnum); in usb_deregister_bus()
957 idr_remove(&usb_bus_idr, bus->busnum); in usb_deregister_bus()
964 * register_root_hub - called by usb_add_hcd() to register a root hub
976 struct device *parent_dev = hcd->self.controller; in register_root_hub()
977 struct usb_device *usb_dev = hcd->self.root_hub; in register_root_hub()
981 usb_dev->devnum = devnum; in register_root_hub()
982 usb_dev->bus->devnum_next = devnum + 1; in register_root_hub()
983 set_bit (devnum, usb_dev->bus->devmap.devicemap); in register_root_hub()
988 usb_dev->ep0.desc.wMaxPacketSize = cpu_to_le16(64); in register_root_hub()
990 if (retval != sizeof usb_dev->descriptor) { in register_root_hub()
993 dev_name(&usb_dev->dev), retval); in register_root_hub()
994 return (retval < 0) ? retval : -EMSGSIZE; in register_root_hub()
997 if (le16_to_cpu(usb_dev->descriptor.bcdUSB) >= 0x0201) { in register_root_hub()
1000 usb_dev->lpm_capable = usb_device_supports_lpm(usb_dev); in register_root_hub()
1001 } else if (usb_dev->speed >= USB_SPEED_SUPER) { in register_root_hub()
1004 dev_name(&usb_dev->dev), retval); in register_root_hub()
1012 dev_name(&usb_dev->dev), retval); in register_root_hub()
1015 hcd->rh_registered = 1; in register_root_hub()
1028 * usb_hcd_start_port_resume - a root-hub port is sending a resume signal
1033 * being sent to a root-hub port. The root hub will be prevented from
1042 if (!(bus->resuming_ports & bit)) { in usb_hcd_start_port_resume()
1043 bus->resuming_ports |= bit; in usb_hcd_start_port_resume()
1044 pm_runtime_get_noresume(&bus->root_hub->dev); in usb_hcd_start_port_resume()
1050 * usb_hcd_end_port_resume - a root-hub port has stopped sending a resume signal
1055 * stopped being sent to a root-hub port. The root hub will be allowed to
1064 if (bus->resuming_ports & bit) { in usb_hcd_end_port_resume()
1065 bus->resuming_ports &= ~bit; in usb_hcd_end_port_resume()
1066 pm_runtime_put_noidle(&bus->root_hub->dev); in usb_hcd_end_port_resume()
1071 /*-------------------------------------------------------------------------*/
1074 * usb_calc_bus_time - approximate periodic transaction time in nanoseconds
1075 * @speed: from dev->speed; USB_SPEED_{LOW,FULL,HIGH}
1116 return -1; in usb_calc_bus_time()
1122 /*-------------------------------------------------------------------------*/
1128 /*-------------------------------------------------------------------------*/
1131 * usb_hcd_link_urb_to_ep - add an URB to its endpoint queue
1152 if (unlikely(atomic_read(&urb->reject))) { in usb_hcd_link_urb_to_ep()
1153 rc = -EPERM; in usb_hcd_link_urb_to_ep()
1157 if (unlikely(!urb->ep->enabled)) { in usb_hcd_link_urb_to_ep()
1158 rc = -ENOENT; in usb_hcd_link_urb_to_ep()
1162 if (unlikely(!urb->dev->can_submit)) { in usb_hcd_link_urb_to_ep()
1163 rc = -EHOSTUNREACH; in usb_hcd_link_urb_to_ep()
1172 urb->unlinked = 0; in usb_hcd_link_urb_to_ep()
1173 list_add_tail(&urb->urb_list, &urb->ep->urb_list); in usb_hcd_link_urb_to_ep()
1175 rc = -ESHUTDOWN; in usb_hcd_link_urb_to_ep()
1185 * usb_hcd_check_unlink_urb - check whether an URB may be unlinked
1198 * -EIDRM: @urb was not submitted or has already completed.
1201 * -EBUSY: @urb has already been unlinked.
1209 list_for_each(tmp, &urb->ep->urb_list) { in usb_hcd_check_unlink_urb()
1210 if (tmp == &urb->urb_list) in usb_hcd_check_unlink_urb()
1213 if (tmp != &urb->urb_list) in usb_hcd_check_unlink_urb()
1214 return -EIDRM; in usb_hcd_check_unlink_urb()
1216 /* Any status except -EINPROGRESS means something already started to in usb_hcd_check_unlink_urb()
1219 if (urb->unlinked) in usb_hcd_check_unlink_urb()
1220 return -EBUSY; in usb_hcd_check_unlink_urb()
1221 urb->unlinked = status; in usb_hcd_check_unlink_urb()
1227 * usb_hcd_unlink_urb_from_ep - remove an URB from its endpoint queue
1240 list_del_init(&urb->urb_list); in usb_hcd_unlink_urb_from_ep()
1248 * using regular system memory - like pci devices doing bus mastering.
1252 * hcd->localmem_pool using usb_hcd_setup_local_mem().
1254 * The initialized hcd->localmem_pool then tells the usb code to allocate all
1259 * - We need "local" memory, canonical example being
1265 * - So we use that, even though the primary requirement
1280 return -EFAULT; in hcd_alloc_coherent()
1286 return -ENOMEM; in hcd_alloc_coherent()
1326 (urb->transfer_flags & URB_SETUP_MAP_SINGLE)) in usb_hcd_unmap_urb_setup_for_dma()
1327 dma_unmap_single(hcd->self.sysdev, in usb_hcd_unmap_urb_setup_for_dma()
1328 urb->setup_dma, in usb_hcd_unmap_urb_setup_for_dma()
1331 else if (urb->transfer_flags & URB_SETUP_MAP_LOCAL) in usb_hcd_unmap_urb_setup_for_dma()
1332 hcd_free_coherent(urb->dev->bus, in usb_hcd_unmap_urb_setup_for_dma()
1333 &urb->setup_dma, in usb_hcd_unmap_urb_setup_for_dma()
1334 (void **) &urb->setup_packet, in usb_hcd_unmap_urb_setup_for_dma()
1339 urb->transfer_flags &= ~(URB_SETUP_MAP_SINGLE | URB_SETUP_MAP_LOCAL); in usb_hcd_unmap_urb_setup_for_dma()
1345 if (hcd->driver->unmap_urb_for_dma) in unmap_urb_for_dma()
1346 hcd->driver->unmap_urb_for_dma(hcd, urb); in unmap_urb_for_dma()
1359 (urb->transfer_flags & URB_DMA_MAP_SG)) in usb_hcd_unmap_urb_for_dma()
1360 dma_unmap_sg(hcd->self.sysdev, in usb_hcd_unmap_urb_for_dma()
1361 urb->sg, in usb_hcd_unmap_urb_for_dma()
1362 urb->num_sgs, in usb_hcd_unmap_urb_for_dma()
1365 (urb->transfer_flags & URB_DMA_MAP_PAGE)) in usb_hcd_unmap_urb_for_dma()
1366 dma_unmap_page(hcd->self.sysdev, in usb_hcd_unmap_urb_for_dma()
1367 urb->transfer_dma, in usb_hcd_unmap_urb_for_dma()
1368 urb->transfer_buffer_length, in usb_hcd_unmap_urb_for_dma()
1371 (urb->transfer_flags & URB_DMA_MAP_SINGLE)) in usb_hcd_unmap_urb_for_dma()
1372 dma_unmap_single(hcd->self.sysdev, in usb_hcd_unmap_urb_for_dma()
1373 urb->transfer_dma, in usb_hcd_unmap_urb_for_dma()
1374 urb->transfer_buffer_length, in usb_hcd_unmap_urb_for_dma()
1376 else if (urb->transfer_flags & URB_MAP_LOCAL) in usb_hcd_unmap_urb_for_dma()
1377 hcd_free_coherent(urb->dev->bus, in usb_hcd_unmap_urb_for_dma()
1378 &urb->transfer_dma, in usb_hcd_unmap_urb_for_dma()
1379 &urb->transfer_buffer, in usb_hcd_unmap_urb_for_dma()
1380 urb->transfer_buffer_length, in usb_hcd_unmap_urb_for_dma()
1384 urb->transfer_flags &= ~(URB_DMA_MAP_SG | URB_DMA_MAP_PAGE | in usb_hcd_unmap_urb_for_dma()
1392 if (hcd->driver->map_urb_for_dma) in map_urb_for_dma()
1393 return hcd->driver->map_urb_for_dma(hcd, urb, mem_flags); in map_urb_for_dma()
1410 if (usb_endpoint_xfer_control(&urb->ep->desc)) { in usb_hcd_map_urb_for_dma()
1411 if (hcd->self.uses_pio_for_control) in usb_hcd_map_urb_for_dma()
1413 if (hcd->localmem_pool) { in usb_hcd_map_urb_for_dma()
1415 urb->dev->bus, mem_flags, in usb_hcd_map_urb_for_dma()
1416 &urb->setup_dma, in usb_hcd_map_urb_for_dma()
1417 (void **)&urb->setup_packet, in usb_hcd_map_urb_for_dma()
1422 urb->transfer_flags |= URB_SETUP_MAP_LOCAL; in usb_hcd_map_urb_for_dma()
1424 if (object_is_on_stack(urb->setup_packet)) { in usb_hcd_map_urb_for_dma()
1426 return -EAGAIN; in usb_hcd_map_urb_for_dma()
1429 urb->setup_dma = dma_map_single( in usb_hcd_map_urb_for_dma()
1430 hcd->self.sysdev, in usb_hcd_map_urb_for_dma()
1431 urb->setup_packet, in usb_hcd_map_urb_for_dma()
1434 if (dma_mapping_error(hcd->self.sysdev, in usb_hcd_map_urb_for_dma()
1435 urb->setup_dma)) in usb_hcd_map_urb_for_dma()
1436 return -EAGAIN; in usb_hcd_map_urb_for_dma()
1437 urb->transfer_flags |= URB_SETUP_MAP_SINGLE; in usb_hcd_map_urb_for_dma()
1442 if (urb->transfer_buffer_length != 0 in usb_hcd_map_urb_for_dma()
1443 && !(urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP)) { in usb_hcd_map_urb_for_dma()
1444 if (hcd->localmem_pool) { in usb_hcd_map_urb_for_dma()
1446 urb->dev->bus, mem_flags, in usb_hcd_map_urb_for_dma()
1447 &urb->transfer_dma, in usb_hcd_map_urb_for_dma()
1448 &urb->transfer_buffer, in usb_hcd_map_urb_for_dma()
1449 urb->transfer_buffer_length, in usb_hcd_map_urb_for_dma()
1452 urb->transfer_flags |= URB_MAP_LOCAL; in usb_hcd_map_urb_for_dma()
1454 if (urb->num_sgs) { in usb_hcd_map_urb_for_dma()
1458 if (usb_endpoint_xfer_isoc(&urb->ep->desc)) { in usb_hcd_map_urb_for_dma()
1460 return -EINVAL; in usb_hcd_map_urb_for_dma()
1464 hcd->self.sysdev, in usb_hcd_map_urb_for_dma()
1465 urb->sg, in usb_hcd_map_urb_for_dma()
1466 urb->num_sgs, in usb_hcd_map_urb_for_dma()
1469 ret = -EAGAIN; in usb_hcd_map_urb_for_dma()
1471 urb->transfer_flags |= URB_DMA_MAP_SG; in usb_hcd_map_urb_for_dma()
1472 urb->num_mapped_sgs = n; in usb_hcd_map_urb_for_dma()
1473 if (n != urb->num_sgs) in usb_hcd_map_urb_for_dma()
1474 urb->transfer_flags |= in usb_hcd_map_urb_for_dma()
1476 } else if (urb->sg) { in usb_hcd_map_urb_for_dma()
1477 struct scatterlist *sg = urb->sg; in usb_hcd_map_urb_for_dma()
1478 urb->transfer_dma = dma_map_page( in usb_hcd_map_urb_for_dma()
1479 hcd->self.sysdev, in usb_hcd_map_urb_for_dma()
1481 sg->offset, in usb_hcd_map_urb_for_dma()
1482 urb->transfer_buffer_length, in usb_hcd_map_urb_for_dma()
1484 if (dma_mapping_error(hcd->self.sysdev, in usb_hcd_map_urb_for_dma()
1485 urb->transfer_dma)) in usb_hcd_map_urb_for_dma()
1486 ret = -EAGAIN; in usb_hcd_map_urb_for_dma()
1488 urb->transfer_flags |= URB_DMA_MAP_PAGE; in usb_hcd_map_urb_for_dma()
1489 } else if (object_is_on_stack(urb->transfer_buffer)) { in usb_hcd_map_urb_for_dma()
1491 ret = -EAGAIN; in usb_hcd_map_urb_for_dma()
1493 urb->transfer_dma = dma_map_single( in usb_hcd_map_urb_for_dma()
1494 hcd->self.sysdev, in usb_hcd_map_urb_for_dma()
1495 urb->transfer_buffer, in usb_hcd_map_urb_for_dma()
1496 urb->transfer_buffer_length, in usb_hcd_map_urb_for_dma()
1498 if (dma_mapping_error(hcd->self.sysdev, in usb_hcd_map_urb_for_dma()
1499 urb->transfer_dma)) in usb_hcd_map_urb_for_dma()
1500 ret = -EAGAIN; in usb_hcd_map_urb_for_dma()
1502 urb->transfer_flags |= URB_DMA_MAP_SINGLE; in usb_hcd_map_urb_for_dma()
1505 if (ret && (urb->transfer_flags & (URB_SETUP_MAP_SINGLE | in usb_hcd_map_urb_for_dma()
1513 /*-------------------------------------------------------------------------*/
1515 /* may be called in any context with a valid urb->dev usecount
1523 struct usb_hcd *hcd = bus_to_hcd(urb->dev->bus); in usb_hcd_submit_urb()
1530 atomic_inc(&urb->use_count); in usb_hcd_submit_urb()
1531 atomic_inc(&urb->dev->urbnum); in usb_hcd_submit_urb()
1532 usbmon_urb_submit(&hcd->self, urb); in usb_hcd_submit_urb()
1534 /* NOTE requirements on root-hub callers (usbfs and the hub in usb_hcd_submit_urb()
1535 * driver, for now): URBs' urb->transfer_buffer must be in usb_hcd_submit_urb()
1542 if (is_root_hub(urb->dev)) { in usb_hcd_submit_urb()
1547 status = hcd->driver->urb_enqueue(hcd, urb, mem_flags); in usb_hcd_submit_urb()
1554 usbmon_urb_submit_error(&hcd->self, urb, status); in usb_hcd_submit_urb()
1555 urb->hcpriv = NULL; in usb_hcd_submit_urb()
1556 INIT_LIST_HEAD(&urb->urb_list); in usb_hcd_submit_urb()
1557 atomic_dec(&urb->use_count); in usb_hcd_submit_urb()
1558 atomic_dec(&urb->dev->urbnum); in usb_hcd_submit_urb()
1559 if (atomic_read(&urb->reject)) in usb_hcd_submit_urb()
1566 /*-------------------------------------------------------------------------*/
1577 if (is_root_hub(urb->dev)) in unlink1()
1584 value = hcd->driver->urb_dequeue(hcd, urb, status); in unlink1()
1598 struct usb_device *udev = urb->dev; in usb_hcd_unlink_urb()
1599 int retval = -EIDRM; in usb_hcd_unlink_urb()
1604 * then urb->use_count must be 0, since disconnected in usb_hcd_unlink_urb()
1608 if (atomic_read(&urb->use_count) > 0) { in usb_hcd_unlink_urb()
1614 hcd = bus_to_hcd(urb->dev->bus); in usb_hcd_unlink_urb()
1617 retval = -EINPROGRESS; in usb_hcd_unlink_urb()
1618 else if (retval != -EIDRM && retval != -EBUSY) in usb_hcd_unlink_urb()
1619 dev_dbg(&udev->dev, "hcd_unlink_urb %pK fail %d\n", in usb_hcd_unlink_urb()
1626 /*-------------------------------------------------------------------------*/
1630 struct usb_hcd *hcd = bus_to_hcd(urb->dev->bus); in __usb_hcd_giveback_urb()
1631 struct usb_anchor *anchor = urb->anchor; in __usb_hcd_giveback_urb()
1632 int status = urb->unlinked; in __usb_hcd_giveback_urb()
1634 urb->hcpriv = NULL; in __usb_hcd_giveback_urb()
1635 if (unlikely((urb->transfer_flags & URB_SHORT_NOT_OK) && in __usb_hcd_giveback_urb()
1636 urb->actual_length < urb->transfer_buffer_length && in __usb_hcd_giveback_urb()
1638 status = -EREMOTEIO; in __usb_hcd_giveback_urb()
1641 usbmon_urb_complete(&hcd->self, urb, status); in __usb_hcd_giveback_urb()
1648 urb->status = status; in __usb_hcd_giveback_urb()
1649 kcov_remote_start_usb((u64)urb->dev->bus->busnum); in __usb_hcd_giveback_urb()
1650 urb->complete(urb); in __usb_hcd_giveback_urb()
1654 atomic_dec(&urb->use_count); in __usb_hcd_giveback_urb()
1655 if (unlikely(atomic_read(&urb->reject))) in __usb_hcd_giveback_urb()
1665 spin_lock_irq(&bh->lock); in usb_giveback_urb_bh()
1666 bh->running = true; in usb_giveback_urb_bh()
1668 list_replace_init(&bh->head, &local_list); in usb_giveback_urb_bh()
1669 spin_unlock_irq(&bh->lock); in usb_giveback_urb_bh()
1675 list_del_init(&urb->urb_list); in usb_giveback_urb_bh()
1676 bh->completing_ep = urb->ep; in usb_giveback_urb_bh()
1678 bh->completing_ep = NULL; in usb_giveback_urb_bh()
1682 spin_lock_irq(&bh->lock); in usb_giveback_urb_bh()
1683 if (!list_empty(&bh->head)) in usb_giveback_urb_bh()
1685 bh->running = false; in usb_giveback_urb_bh()
1686 spin_unlock_irq(&bh->lock); in usb_giveback_urb_bh()
1690 * usb_hcd_giveback_urb - return URB from HCD to device driver
1697 * completion function. The HCD has freed all per-urb resources
1698 * (and is done using urb->hcpriv). It also released all HCD locks;
1703 * @urb->unlinked. Erroneous short transfers are detected in case
1712 if (likely(!urb->unlinked)) in usb_hcd_giveback_urb()
1713 urb->unlinked = status; in usb_hcd_giveback_urb()
1715 if (!hcd_giveback_urb_in_bh(hcd) && !is_root_hub(urb->dev)) { in usb_hcd_giveback_urb()
1720 if (usb_pipeisoc(urb->pipe) || usb_pipeint(urb->pipe)) { in usb_hcd_giveback_urb()
1721 bh = &hcd->high_prio_bh; in usb_hcd_giveback_urb()
1724 bh = &hcd->low_prio_bh; in usb_hcd_giveback_urb()
1728 spin_lock(&bh->lock); in usb_hcd_giveback_urb()
1729 list_add_tail(&urb->urb_list, &bh->head); in usb_hcd_giveback_urb()
1730 running = bh->running; in usb_hcd_giveback_urb()
1731 spin_unlock(&bh->lock); in usb_hcd_giveback_urb()
1736 tasklet_hi_schedule(&bh->bh); in usb_hcd_giveback_urb()
1738 tasklet_schedule(&bh->bh); in usb_hcd_giveback_urb()
1742 /*-------------------------------------------------------------------------*/
1757 hcd = bus_to_hcd(udev->bus); in usb_hcd_flush_endpoint()
1762 list_for_each_entry_reverse(urb, &ep->urb_list, urb_list) { in usb_hcd_flush_endpoint()
1765 if (urb->unlinked) in usb_hcd_flush_endpoint()
1772 unlink1(hcd, urb, -ESHUTDOWN); in usb_hcd_flush_endpoint()
1773 dev_dbg (hcd->self.controller, in usb_hcd_flush_endpoint()
1774 "shutdown urb %pK ep%d%s-%s\n", in usb_hcd_flush_endpoint()
1775 urb, usb_endpoint_num(&ep->desc), in usb_hcd_flush_endpoint()
1777 usb_ep_type_string(usb_endpoint_type(&ep->desc))); in usb_hcd_flush_endpoint()
1787 while (!list_empty (&ep->urb_list)) { in usb_hcd_flush_endpoint()
1792 if (!list_empty (&ep->urb_list)) { in usb_hcd_flush_endpoint()
1793 urb = list_entry (ep->urb_list.prev, struct urb, in usb_hcd_flush_endpoint()
1807 * usb_hcd_alloc_bandwidth - check whether a new bandwidth setting exceeds
1838 hcd = bus_to_hcd(udev->bus); in usb_hcd_alloc_bandwidth()
1839 if (!hcd->driver->check_bandwidth) in usb_hcd_alloc_bandwidth()
1842 /* Configuration is being removed - set configuration 0 */ in usb_hcd_alloc_bandwidth()
1845 ep = udev->ep_out[i]; in usb_hcd_alloc_bandwidth()
1847 hcd->driver->drop_endpoint(hcd, udev, ep); in usb_hcd_alloc_bandwidth()
1848 ep = udev->ep_in[i]; in usb_hcd_alloc_bandwidth()
1850 hcd->driver->drop_endpoint(hcd, udev, ep); in usb_hcd_alloc_bandwidth()
1852 hcd->driver->check_bandwidth(hcd, udev); in usb_hcd_alloc_bandwidth()
1861 num_intfs = new_config->desc.bNumInterfaces; in usb_hcd_alloc_bandwidth()
1866 ep = udev->ep_out[i]; in usb_hcd_alloc_bandwidth()
1868 ret = hcd->driver->drop_endpoint(hcd, udev, ep); in usb_hcd_alloc_bandwidth()
1872 ep = udev->ep_in[i]; in usb_hcd_alloc_bandwidth()
1874 ret = hcd->driver->drop_endpoint(hcd, udev, ep); in usb_hcd_alloc_bandwidth()
1883 first_alt = &new_config->intf_cache[i]->altsetting[0]; in usb_hcd_alloc_bandwidth()
1884 iface_num = first_alt->desc.bInterfaceNumber; in usb_hcd_alloc_bandwidth()
1891 for (j = 0; j < alt->desc.bNumEndpoints; j++) { in usb_hcd_alloc_bandwidth()
1892 ret = hcd->driver->add_endpoint(hcd, udev, &alt->endpoint[j]); in usb_hcd_alloc_bandwidth()
1900 cur_alt->desc.bInterfaceNumber); in usb_hcd_alloc_bandwidth()
1903 return -EINVAL; in usb_hcd_alloc_bandwidth()
1904 if (iface->resetting_device) { in usb_hcd_alloc_bandwidth()
1916 cur_alt = &iface->altsetting[0]; in usb_hcd_alloc_bandwidth()
1920 for (i = 0; i < cur_alt->desc.bNumEndpoints; i++) { in usb_hcd_alloc_bandwidth()
1921 ret = hcd->driver->drop_endpoint(hcd, udev, in usb_hcd_alloc_bandwidth()
1922 &cur_alt->endpoint[i]); in usb_hcd_alloc_bandwidth()
1927 for (i = 0; i < new_alt->desc.bNumEndpoints; i++) { in usb_hcd_alloc_bandwidth()
1928 ret = hcd->driver->add_endpoint(hcd, udev, in usb_hcd_alloc_bandwidth()
1929 &new_alt->endpoint[i]); in usb_hcd_alloc_bandwidth()
1934 ret = hcd->driver->check_bandwidth(hcd, udev); in usb_hcd_alloc_bandwidth()
1937 hcd->driver->reset_bandwidth(hcd, udev); in usb_hcd_alloc_bandwidth()
1946 * example: a qh stored in ep->hcpriv, holding state related to endpoint
1955 hcd = bus_to_hcd(udev->bus); in usb_hcd_disable_endpoint()
1956 if (hcd->driver->endpoint_disable) in usb_hcd_disable_endpoint()
1957 hcd->driver->endpoint_disable(hcd, ep); in usb_hcd_disable_endpoint()
1961 * usb_hcd_reset_endpoint - reset host endpoint state
1971 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_hcd_reset_endpoint()
1973 if (hcd->driver->endpoint_reset) in usb_hcd_reset_endpoint()
1974 hcd->driver->endpoint_reset(hcd, ep); in usb_hcd_reset_endpoint()
1976 int epnum = usb_endpoint_num(&ep->desc); in usb_hcd_reset_endpoint()
1977 int is_out = usb_endpoint_dir_out(&ep->desc); in usb_hcd_reset_endpoint()
1978 int is_control = usb_endpoint_xfer_control(&ep->desc); in usb_hcd_reset_endpoint()
1987 * usb_alloc_streams - allocate bulk endpoint stream IDs.
2010 hcd = bus_to_hcd(dev->bus); in usb_alloc_streams()
2011 if (!hcd->driver->alloc_streams || !hcd->driver->free_streams) in usb_alloc_streams()
2012 return -EINVAL; in usb_alloc_streams()
2013 if (dev->speed < USB_SPEED_SUPER) in usb_alloc_streams()
2014 return -EINVAL; in usb_alloc_streams()
2015 if (dev->state < USB_STATE_CONFIGURED) in usb_alloc_streams()
2016 return -ENODEV; in usb_alloc_streams()
2020 if (!usb_endpoint_xfer_bulk(&eps[i]->desc)) in usb_alloc_streams()
2021 return -EINVAL; in usb_alloc_streams()
2022 /* Re-alloc is not allowed */ in usb_alloc_streams()
2023 if (eps[i]->streams) in usb_alloc_streams()
2024 return -EINVAL; in usb_alloc_streams()
2027 ret = hcd->driver->alloc_streams(hcd, dev, eps, num_eps, in usb_alloc_streams()
2033 eps[i]->streams = ret; in usb_alloc_streams()
2040 * usb_free_streams - free bulk endpoint stream IDs.
2060 hcd = bus_to_hcd(dev->bus); in usb_free_streams()
2061 if (dev->speed < USB_SPEED_SUPER) in usb_free_streams()
2062 return -EINVAL; in usb_free_streams()
2064 /* Double-free is not allowed */ in usb_free_streams()
2066 if (!eps[i] || !eps[i]->streams) in usb_free_streams()
2067 return -EINVAL; in usb_free_streams()
2069 ret = hcd->driver->free_streams(hcd, dev, eps, num_eps, mem_flags); in usb_free_streams()
2074 eps[i]->streams = 0; in usb_free_streams()
2091 /*-------------------------------------------------------------------------*/
2096 struct usb_hcd *hcd = bus_to_hcd(udev->bus); in usb_hcd_get_frame_number()
2099 return -ESHUTDOWN; in usb_hcd_get_frame_number()
2100 return hcd->driver->get_frame_number (hcd); in usb_hcd_get_frame_number()
2103 /*-------------------------------------------------------------------------*/
2109 struct usb_hcd *hcd = bus_to_hcd(rhdev->bus); in hcd_bus_suspend()
2111 int old_state = hcd->state; in hcd_bus_suspend()
2113 dev_dbg(&rhdev->dev, "bus %ssuspend, wakeup %d\n", in hcd_bus_suspend()
2114 (PMSG_IS_AUTO(msg) ? "auto-" : ""), in hcd_bus_suspend()
2115 rhdev->do_remote_wakeup); in hcd_bus_suspend()
2117 dev_dbg(&rhdev->dev, "skipped %s of dead bus\n", "suspend"); in hcd_bus_suspend()
2121 if (!hcd->driver->bus_suspend) { in hcd_bus_suspend()
2122 status = -ENOENT; in hcd_bus_suspend()
2124 clear_bit(HCD_FLAG_RH_RUNNING, &hcd->flags); in hcd_bus_suspend()
2125 hcd->state = HC_STATE_QUIESCING; in hcd_bus_suspend()
2126 status = hcd->driver->bus_suspend(hcd); in hcd_bus_suspend()
2130 hcd->state = HC_STATE_SUSPENDED; in hcd_bus_suspend()
2133 usb_phy_roothub_suspend(hcd->self.sysdev, in hcd_bus_suspend()
2134 hcd->phy_roothub); in hcd_bus_suspend()
2136 /* Did we race with a root-hub wakeup event? */ in hcd_bus_suspend()
2137 if (rhdev->do_remote_wakeup) { in hcd_bus_suspend()
2140 status = hcd->driver->hub_status_data(hcd, buffer); in hcd_bus_suspend()
2142 dev_dbg(&rhdev->dev, "suspend raced with wakeup event\n"); in hcd_bus_suspend()
2144 status = -EBUSY; in hcd_bus_suspend()
2150 set_bit(HCD_FLAG_RH_RUNNING, &hcd->flags); in hcd_bus_suspend()
2151 hcd->state = old_state; in hcd_bus_suspend()
2154 dev_dbg(&rhdev->dev, "bus %s fail, err %d\n", in hcd_bus_suspend()
2162 struct usb_hcd *hcd = bus_to_hcd(rhdev->bus); in hcd_bus_resume()
2164 int old_state = hcd->state; in hcd_bus_resume()
2166 dev_dbg(&rhdev->dev, "usb %sresume\n", in hcd_bus_resume()
2167 (PMSG_IS_AUTO(msg) ? "auto-" : "")); in hcd_bus_resume()
2169 dev_dbg(&rhdev->dev, "skipped %s of dead bus\n", "resume"); in hcd_bus_resume()
2174 status = usb_phy_roothub_resume(hcd->self.sysdev, in hcd_bus_resume()
2175 hcd->phy_roothub); in hcd_bus_resume()
2180 if (!hcd->driver->bus_resume) in hcd_bus_resume()
2181 return -ENOENT; in hcd_bus_resume()
2185 hcd->state = HC_STATE_RESUMING; in hcd_bus_resume()
2186 status = hcd->driver->bus_resume(hcd); in hcd_bus_resume()
2187 clear_bit(HCD_FLAG_WAKEUP_PENDING, &hcd->flags); in hcd_bus_resume()
2189 status = usb_phy_roothub_calibrate(hcd->phy_roothub); in hcd_bus_resume()
2197 usb_set_device_state(rhdev, rhdev->actconfig in hcd_bus_resume()
2200 set_bit(HCD_FLAG_RH_RUNNING, &hcd->flags); in hcd_bus_resume()
2201 hcd->state = HC_STATE_RUNNING; in hcd_bus_resume()
2208 * (this is what the USB-2 spec calls a "global resume"). in hcd_bus_resume()
2212 if (udev->state != USB_STATE_NOTATTACHED && in hcd_bus_resume()
2213 !udev->port_is_suspended) { in hcd_bus_resume()
2219 hcd->state = old_state; in hcd_bus_resume()
2220 usb_phy_roothub_suspend(hcd->self.sysdev, hcd->phy_roothub); in hcd_bus_resume()
2221 dev_dbg(&rhdev->dev, "bus %s fail, err %d\n", in hcd_bus_resume()
2223 if (status != -ESHUTDOWN) in hcd_bus_resume()
2229 /* Workqueue routine for root-hub remote wakeup */
2233 struct usb_device *udev = hcd->self.root_hub; in hcd_resume_work()
2239 * usb_hcd_resume_root_hub - called by HCD to resume its root hub
2252 if (hcd->rh_registered) { in usb_hcd_resume_root_hub()
2253 pm_wakeup_event(&hcd->self.root_hub->dev, 0); in usb_hcd_resume_root_hub()
2254 set_bit(HCD_FLAG_WAKEUP_PENDING, &hcd->flags); in usb_hcd_resume_root_hub()
2255 queue_work(pm_wq, &hcd->wakeup_work); in usb_hcd_resume_root_hub()
2263 /*-------------------------------------------------------------------------*/
2268 * usb_bus_start_enum - start immediate enumeration (for OTG)
2270 * @port_num: 1-based number of port; usually bus->otg_port
2283 int status = -EOPNOTSUPP; in usb_bus_start_enum()
2290 if (port_num && hcd->driver->start_port_reset) in usb_bus_start_enum()
2291 status = hcd->driver->start_port_reset(hcd, port_num); in usb_bus_start_enum()
2297 mod_timer(&hcd->rh_timer, jiffies + msecs_to_jiffies(10)); in usb_bus_start_enum()
2304 /*-------------------------------------------------------------------------*/
2307 * usb_hcd_irq - hook IRQs to HCD framework (bus glue)
2323 else if (hcd->driver->irq(hcd) == IRQ_NONE) in usb_hcd_irq()
2332 /*-------------------------------------------------------------------------*/
2334 /* Workqueue routine for when the root-hub has died. */
2344 kobject_uevent_env(&hcd->self.root_hub->dev.kobj, KOBJ_OFFLINE, env); in hcd_died_work()
2348 * usb_hc_died - report abnormal shutdown of a host controller (bus glue)
2353 * by the PCI glue, so only glue for non-PCI busses should need to call it.
2361 dev_err (hcd->self.controller, "HC died; cleaning up\n"); in usb_hc_died()
2364 clear_bit(HCD_FLAG_RH_RUNNING, &hcd->flags); in usb_hc_died()
2365 set_bit(HCD_FLAG_DEAD, &hcd->flags); in usb_hc_died()
2366 if (hcd->rh_registered) { in usb_hc_died()
2367 clear_bit(HCD_FLAG_POLL_RH, &hcd->flags); in usb_hc_died()
2370 usb_set_device_state (hcd->self.root_hub, in usb_hc_died()
2372 usb_kick_hub_wq(hcd->self.root_hub); in usb_hc_died()
2374 if (usb_hcd_is_primary_hcd(hcd) && hcd->shared_hcd) { in usb_hc_died()
2375 hcd = hcd->shared_hcd; in usb_hc_died()
2376 clear_bit(HCD_FLAG_RH_RUNNING, &hcd->flags); in usb_hc_died()
2377 set_bit(HCD_FLAG_DEAD, &hcd->flags); in usb_hc_died()
2378 if (hcd->rh_registered) { in usb_hc_died()
2379 clear_bit(HCD_FLAG_POLL_RH, &hcd->flags); in usb_hc_died()
2382 usb_set_device_state(hcd->self.root_hub, in usb_hc_died()
2384 usb_kick_hub_wq(hcd->self.root_hub); in usb_hc_died()
2390 schedule_work(&hcd->died_work); in usb_hc_died()
2392 schedule_work(&hcd->primary_hcd->died_work); in usb_hc_died()
2399 /*-------------------------------------------------------------------------*/
2404 spin_lock_init(&bh->lock); in init_giveback_urb_bh()
2405 INIT_LIST_HEAD(&bh->head); in init_giveback_urb_bh()
2406 tasklet_setup(&bh->bh, usb_giveback_urb_bh); in init_giveback_urb_bh()
2415 hcd = kzalloc(sizeof(*hcd) + driver->hcd_priv_size, GFP_KERNEL); in __usb_create_hcd()
2419 hcd->address0_mutex = kmalloc(sizeof(*hcd->address0_mutex), in __usb_create_hcd()
2421 if (!hcd->address0_mutex) { in __usb_create_hcd()
2426 mutex_init(hcd->address0_mutex); in __usb_create_hcd()
2427 hcd->bandwidth_mutex = kmalloc(sizeof(*hcd->bandwidth_mutex), in __usb_create_hcd()
2429 if (!hcd->bandwidth_mutex) { in __usb_create_hcd()
2430 kfree(hcd->address0_mutex); in __usb_create_hcd()
2435 mutex_init(hcd->bandwidth_mutex); in __usb_create_hcd()
2439 hcd->address0_mutex = primary_hcd->address0_mutex; in __usb_create_hcd()
2440 hcd->bandwidth_mutex = primary_hcd->bandwidth_mutex; in __usb_create_hcd()
2441 hcd->primary_hcd = primary_hcd; in __usb_create_hcd()
2442 primary_hcd->primary_hcd = primary_hcd; in __usb_create_hcd()
2443 hcd->shared_hcd = primary_hcd; in __usb_create_hcd()
2444 primary_hcd->shared_hcd = hcd; in __usb_create_hcd()
2448 kref_init(&hcd->kref); in __usb_create_hcd()
2450 usb_bus_init(&hcd->self); in __usb_create_hcd()
2451 hcd->self.controller = dev; in __usb_create_hcd()
2452 hcd->self.sysdev = sysdev; in __usb_create_hcd()
2453 hcd->self.bus_name = bus_name; in __usb_create_hcd()
2455 timer_setup(&hcd->rh_timer, rh_timer_func, 0); in __usb_create_hcd()
2457 INIT_WORK(&hcd->wakeup_work, hcd_resume_work); in __usb_create_hcd()
2460 INIT_WORK(&hcd->died_work, hcd_died_work); in __usb_create_hcd()
2462 hcd->driver = driver; in __usb_create_hcd()
2463 hcd->speed = driver->flags & HCD_MASK; in __usb_create_hcd()
2464 hcd->product_desc = (driver->product_desc) ? driver->product_desc : in __usb_create_hcd()
2471 * usb_create_shared_hcd - create and initialize an HCD structure
2473 * @dev: device for this HC, stored in hcd->self.controller
2474 * @bus_name: value to store in hcd->self.bus_name
2495 * usb_create_hcd - create and initialize an HCD structure
2497 * @dev: device for this HC, stored in hcd->self.controller
2498 * @bus_name: value to store in hcd->self.bus_name
2522 * invalidate the peer's ->shared_hcd and ->primary_hcd pointers.
2529 if (hcd->shared_hcd) { in hcd_release()
2530 struct usb_hcd *peer = hcd->shared_hcd; in hcd_release()
2532 peer->shared_hcd = NULL; in hcd_release()
2533 peer->primary_hcd = NULL; in hcd_release()
2535 kfree(hcd->address0_mutex); in hcd_release()
2536 kfree(hcd->bandwidth_mutex); in hcd_release()
2545 kref_get (&hcd->kref); in usb_get_hcd()
2553 kref_put (&hcd->kref, hcd_release); in usb_put_hcd()
2559 if (!hcd->primary_hcd) in usb_hcd_is_primary_hcd()
2561 return hcd == hcd->primary_hcd; in usb_hcd_is_primary_hcd()
2567 if (!hcd->driver->find_raw_port_number) in usb_hcd_find_raw_port_number()
2570 return hcd->driver->find_raw_port_number(hcd, port1); in usb_hcd_find_raw_port_number()
2578 if (hcd->driver->irq) { in usb_hcd_request_irqs()
2580 snprintf(hcd->irq_descr, sizeof(hcd->irq_descr), "%s:usb%d", in usb_hcd_request_irqs()
2581 hcd->driver->description, hcd->self.busnum); in usb_hcd_request_irqs()
2583 hcd->irq_descr, hcd); in usb_hcd_request_irqs()
2585 dev_err(hcd->self.controller, in usb_hcd_request_irqs()
2590 hcd->irq = irqnum; in usb_hcd_request_irqs()
2591 dev_info(hcd->self.controller, "irq %d, %s 0x%08llx\n", irqnum, in usb_hcd_request_irqs()
2592 (hcd->driver->flags & HCD_MEMORY) ? in usb_hcd_request_irqs()
2594 (unsigned long long)hcd->rsrc_start); in usb_hcd_request_irqs()
2596 hcd->irq = 0; in usb_hcd_request_irqs()
2597 if (hcd->rsrc_start) in usb_hcd_request_irqs()
2598 dev_info(hcd->self.controller, "%s 0x%08llx\n", in usb_hcd_request_irqs()
2599 (hcd->driver->flags & HCD_MEMORY) ? in usb_hcd_request_irqs()
2601 (unsigned long long)hcd->rsrc_start); in usb_hcd_request_irqs()
2607 * Before we free this root hub, flush in-flight peering attempts
2615 rhdev = hcd->self.root_hub; in usb_put_invalidate_rhdev()
2616 hcd->self.root_hub = NULL; in usb_put_invalidate_rhdev()
2622 * usb_add_hcd - finish generic HCD structure initialization and register
2637 if (!hcd->skip_phy_initialization && usb_hcd_is_primary_hcd(hcd)) { in usb_add_hcd()
2638 hcd->phy_roothub = usb_phy_roothub_alloc(hcd->self.sysdev); in usb_add_hcd()
2639 if (IS_ERR(hcd->phy_roothub)) in usb_add_hcd()
2640 return PTR_ERR(hcd->phy_roothub); in usb_add_hcd()
2642 retval = usb_phy_roothub_init(hcd->phy_roothub); in usb_add_hcd()
2646 retval = usb_phy_roothub_set_mode(hcd->phy_roothub, in usb_add_hcd()
2649 retval = usb_phy_roothub_set_mode(hcd->phy_roothub, in usb_add_hcd()
2654 retval = usb_phy_roothub_power_on(hcd->phy_roothub); in usb_add_hcd()
2659 dev_info(hcd->self.controller, "%s\n", hcd->product_desc); in usb_add_hcd()
2663 hcd->dev_policy = USB_DEVICE_AUTHORIZE_NONE; in usb_add_hcd()
2667 hcd->dev_policy = USB_DEVICE_AUTHORIZE_ALL; in usb_add_hcd()
2671 hcd->dev_policy = USB_DEVICE_AUTHORIZE_INTERNAL; in usb_add_hcd()
2676 hcd->dev_policy = hcd->wireless ? in usb_add_hcd()
2681 set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags); in usb_add_hcd()
2684 set_bit(HCD_FLAG_INTF_AUTHORIZED, &hcd->flags); in usb_add_hcd()
2686 /* HC is in reset state, but accessible. Now do the one-time init, in usb_add_hcd()
2692 dev_dbg(hcd->self.sysdev, "pool alloc failed\n"); in usb_add_hcd()
2696 retval = usb_register_bus(&hcd->self); in usb_add_hcd()
2700 rhdev = usb_alloc_dev(NULL, &hcd->self, 0); in usb_add_hcd()
2702 dev_err(hcd->self.sysdev, "unable to allocate root hub\n"); in usb_add_hcd()
2703 retval = -ENOMEM; in usb_add_hcd()
2707 hcd->self.root_hub = rhdev; in usb_add_hcd()
2710 rhdev->rx_lanes = 1; in usb_add_hcd()
2711 rhdev->tx_lanes = 1; in usb_add_hcd()
2713 switch (hcd->speed) { in usb_add_hcd()
2715 rhdev->speed = USB_SPEED_FULL; in usb_add_hcd()
2718 rhdev->speed = USB_SPEED_HIGH; in usb_add_hcd()
2721 rhdev->speed = USB_SPEED_WIRELESS; in usb_add_hcd()
2724 rhdev->speed = USB_SPEED_SUPER; in usb_add_hcd()
2727 rhdev->rx_lanes = 2; in usb_add_hcd()
2728 rhdev->tx_lanes = 2; in usb_add_hcd()
2731 rhdev->speed = USB_SPEED_SUPER_PLUS; in usb_add_hcd()
2734 retval = -EINVAL; in usb_add_hcd()
2742 device_set_wakeup_capable(&rhdev->dev, 1); in usb_add_hcd()
2748 set_bit(HCD_FLAG_RH_RUNNING, &hcd->flags); in usb_add_hcd()
2750 /* "reset" is misnamed; its role is now one-time init. the controller in usb_add_hcd()
2753 if (hcd->driver->reset) { in usb_add_hcd()
2754 retval = hcd->driver->reset(hcd); in usb_add_hcd()
2756 dev_err(hcd->self.controller, "can't setup: %d\n", in usb_add_hcd()
2761 hcd->rh_pollable = 1; in usb_add_hcd()
2763 retval = usb_phy_roothub_calibrate(hcd->phy_roothub); in usb_add_hcd()
2768 if (device_can_wakeup(hcd->self.controller) in usb_add_hcd()
2769 && device_can_wakeup(&hcd->self.root_hub->dev)) in usb_add_hcd()
2770 dev_dbg(hcd->self.controller, "supports USB remote wakeup\n"); in usb_add_hcd()
2773 init_giveback_urb_bh(&hcd->high_prio_bh); in usb_add_hcd()
2774 init_giveback_urb_bh(&hcd->low_prio_bh); in usb_add_hcd()
2785 hcd->state = HC_STATE_RUNNING; in usb_add_hcd()
2786 retval = hcd->driver->start(hcd); in usb_add_hcd()
2788 dev_err(hcd->self.controller, "startup error %d\n", retval); in usb_add_hcd()
2797 if (hcd->uses_new_polling && HCD_POLL_RH(hcd)) in usb_add_hcd()
2803 hcd->rh_pollable = 0; in usb_add_hcd()
2804 clear_bit(HCD_FLAG_POLL_RH, &hcd->flags); in usb_add_hcd()
2805 del_timer_sync(&hcd->rh_timer); in usb_add_hcd()
2806 hcd->driver->stop(hcd); in usb_add_hcd()
2807 hcd->state = HC_STATE_HALT; in usb_add_hcd()
2808 clear_bit(HCD_FLAG_POLL_RH, &hcd->flags); in usb_add_hcd()
2809 del_timer_sync(&hcd->rh_timer); in usb_add_hcd()
2811 if (usb_hcd_is_primary_hcd(hcd) && hcd->irq > 0) in usb_add_hcd()
2818 usb_deregister_bus(&hcd->self); in usb_add_hcd()
2822 usb_phy_roothub_power_off(hcd->phy_roothub); in usb_add_hcd()
2824 usb_phy_roothub_exit(hcd->phy_roothub); in usb_add_hcd()
2831 * usb_remove_hcd - shutdown processing for generic HCDs
2840 struct usb_device *rhdev = hcd->self.root_hub; in usb_remove_hcd()
2842 dev_info(hcd->self.controller, "remove, state %x\n", hcd->state); in usb_remove_hcd()
2845 clear_bit(HCD_FLAG_RH_RUNNING, &hcd->flags); in usb_remove_hcd()
2846 if (HC_IS_RUNNING (hcd->state)) in usb_remove_hcd()
2847 hcd->state = HC_STATE_QUIESCING; in usb_remove_hcd()
2849 dev_dbg(hcd->self.controller, "roothub graceful disconnect\n"); in usb_remove_hcd()
2851 hcd->rh_registered = 0; in usb_remove_hcd()
2855 cancel_work_sync(&hcd->wakeup_work); in usb_remove_hcd()
2857 cancel_work_sync(&hcd->died_work); in usb_remove_hcd()
2865 * - driver's disconnect() called from usb_disconnect() should in usb_remove_hcd()
2869 * - it is too late to run complete() here since driver may have in usb_remove_hcd()
2873 /* Prevent any more root-hub status calls from the timer. in usb_remove_hcd()
2878 hcd->rh_pollable = 0; in usb_remove_hcd()
2879 clear_bit(HCD_FLAG_POLL_RH, &hcd->flags); in usb_remove_hcd()
2880 del_timer_sync(&hcd->rh_timer); in usb_remove_hcd()
2882 hcd->driver->stop(hcd); in usb_remove_hcd()
2883 hcd->state = HC_STATE_HALT; in usb_remove_hcd()
2886 clear_bit(HCD_FLAG_POLL_RH, &hcd->flags); in usb_remove_hcd()
2887 del_timer_sync(&hcd->rh_timer); in usb_remove_hcd()
2890 if (hcd->irq > 0) in usb_remove_hcd()
2891 free_irq(hcd->irq, hcd); in usb_remove_hcd()
2894 usb_deregister_bus(&hcd->self); in usb_remove_hcd()
2897 usb_phy_roothub_power_off(hcd->phy_roothub); in usb_remove_hcd()
2898 usb_phy_roothub_exit(hcd->phy_roothub); in usb_remove_hcd()
2901 hcd->flags = 0; in usb_remove_hcd()
2911 pm_runtime_get_sync(&dev->dev); in usb_hcd_platform_shutdown()
2913 if (hcd->driver->shutdown) in usb_hcd_platform_shutdown()
2914 hcd->driver->shutdown(hcd); in usb_hcd_platform_shutdown()
2924 hcd->localmem_pool = devm_gen_pool_create(hcd->self.sysdev, 4, in usb_hcd_setup_local_mem()
2925 dev_to_node(hcd->self.sysdev), in usb_hcd_setup_local_mem()
2926 dev_name(hcd->self.sysdev)); in usb_hcd_setup_local_mem()
2927 if (IS_ERR(hcd->localmem_pool)) in usb_hcd_setup_local_mem()
2928 return PTR_ERR(hcd->localmem_pool); in usb_hcd_setup_local_mem()
2930 local_mem = devm_memremap(hcd->self.sysdev, phys_addr, in usb_hcd_setup_local_mem()
2940 err = gen_pool_add_virt(hcd->localmem_pool, (unsigned long)local_mem, in usb_hcd_setup_local_mem()
2941 dma, size, dev_to_node(hcd->self.sysdev)); in usb_hcd_setup_local_mem()
2943 dev_err(hcd->self.sysdev, "gen_pool_add_virt failed with %d\n", in usb_hcd_setup_local_mem()
2952 /*-------------------------------------------------------------------------*/
2962 * Notice that the code is minimally error-proof. Because usbmon needs
2970 return -EBUSY; in usb_mon_register()