Lines Matching refs:ps
90 struct usb_dev_state *ps; member
95 struct usb_dev_state *ps; member
167 static int connected(struct usb_dev_state *ps) in connected() argument
169 return (!list_empty(&ps->list) && in connected()
170 ps->dev->state != USB_STATE_NOTATTACHED); in connected()
175 struct usb_dev_state *ps = usbm->ps; in dec_usb_memory_use_count() local
178 spin_lock_irqsave(&ps->lock, flags); in dec_usb_memory_use_count()
182 spin_unlock_irqrestore(&ps->lock, flags); in dec_usb_memory_use_count()
184 usb_free_coherent(ps->dev, usbm->size, usbm->mem, in dec_usb_memory_use_count()
190 spin_unlock_irqrestore(&ps->lock, flags); in dec_usb_memory_use_count()
199 spin_lock_irqsave(&usbm->ps->lock, flags); in usbdev_vm_open()
201 spin_unlock_irqrestore(&usbm->ps->lock, flags); in usbdev_vm_open()
219 struct usb_dev_state *ps = file->private_data; in usbdev_mmap() local
236 mem = usb_alloc_coherent(ps->dev, size, GFP_USER | __GFP_NOWARN, in usbdev_mmap()
248 usbm->ps = ps; in usbdev_mmap()
265 spin_lock_irqsave(&ps->lock, flags); in usbdev_mmap()
266 list_add_tail(&usbm->memlist, &ps->memory_list); in usbdev_mmap()
267 spin_unlock_irqrestore(&ps->lock, flags); in usbdev_mmap()
282 struct usb_dev_state *ps = file->private_data; in usbdev_read() local
283 struct usb_device *dev = ps->dev; in usbdev_read()
291 if (!connected(ps)) { in usbdev_read()
410 struct usb_dev_state *ps = as->ps; in async_newpending() local
413 spin_lock_irqsave(&ps->lock, flags); in async_newpending()
414 list_add_tail(&as->asynclist, &ps->async_pending); in async_newpending()
415 spin_unlock_irqrestore(&ps->lock, flags); in async_newpending()
420 struct usb_dev_state *ps = as->ps; in async_removepending() local
423 spin_lock_irqsave(&ps->lock, flags); in async_removepending()
425 spin_unlock_irqrestore(&ps->lock, flags); in async_removepending()
428 static struct async *async_getcompleted(struct usb_dev_state *ps) in async_getcompleted() argument
433 spin_lock_irqsave(&ps->lock, flags); in async_getcompleted()
434 if (!list_empty(&ps->async_completed)) { in async_getcompleted()
435 as = list_entry(ps->async_completed.next, struct async, in async_getcompleted()
439 spin_unlock_irqrestore(&ps->lock, flags); in async_getcompleted()
443 static struct async *async_getpending(struct usb_dev_state *ps, in async_getpending() argument
448 list_for_each_entry(as, &ps->async_pending, asynclist) in async_getpending()
553 static void cancel_bulk_urbs(struct usb_dev_state *ps, unsigned bulk_addr) in cancel_bulk_urbs() argument
554 __releases(ps->lock) in cancel_bulk_urbs()
555 __acquires(ps->lock) in cancel_bulk_urbs()
565 list_for_each_entry(as, &ps->async_pending, asynclist) { in cancel_bulk_urbs()
573 ps->disabled_bulk_eps |= (1 << bulk_addr); in cancel_bulk_urbs()
577 list_for_each_entry(as, &ps->async_pending, asynclist) { in cancel_bulk_urbs()
582 spin_unlock(&ps->lock); /* Allow completions */ in cancel_bulk_urbs()
585 spin_lock(&ps->lock); in cancel_bulk_urbs()
594 struct usb_dev_state *ps = as->ps; in async_completed() local
601 spin_lock_irqsave(&ps->lock, flags); in async_completed()
602 list_move_tail(&as->asynclist, &ps->async_completed); in async_completed()
619 cancel_bulk_urbs(ps, as->bulk_addr); in async_completed()
621 wake_up(&ps->wait); in async_completed()
622 spin_unlock_irqrestore(&ps->lock, flags); in async_completed()
631 static void destroy_async(struct usb_dev_state *ps, struct list_head *list) in destroy_async() argument
637 spin_lock_irqsave(&ps->lock, flags); in destroy_async()
645 spin_unlock_irqrestore(&ps->lock, flags); in destroy_async()
648 spin_lock_irqsave(&ps->lock, flags); in destroy_async()
650 spin_unlock_irqrestore(&ps->lock, flags); in destroy_async()
653 static void destroy_async_on_interface(struct usb_dev_state *ps, in destroy_async_on_interface() argument
660 spin_lock_irqsave(&ps->lock, flags); in destroy_async_on_interface()
661 list_for_each_safe(p, q, &ps->async_pending) in destroy_async_on_interface()
664 spin_unlock_irqrestore(&ps->lock, flags); in destroy_async_on_interface()
665 destroy_async(ps, &hitlist); in destroy_async_on_interface()
668 static void destroy_all_async(struct usb_dev_state *ps) in destroy_all_async() argument
670 destroy_async(ps, &ps->async_pending); in destroy_all_async()
687 struct usb_dev_state *ps = usb_get_intfdata(intf); in driver_disconnect() local
690 if (!ps) in driver_disconnect()
697 if (likely(ifnum < 8*sizeof(ps->ifclaimed))) in driver_disconnect()
698 clear_bit(ifnum, &ps->ifclaimed); in driver_disconnect()
706 destroy_async_on_interface(ps, ifnum); in driver_disconnect()
728 struct usb_dev_state *ps; in usbfs_notify_resume() local
732 list_for_each_entry(ps, &udev->filelist, list) { in usbfs_notify_resume()
733 WRITE_ONCE(ps->not_yet_resumed, 0); in usbfs_notify_resume()
734 wake_up_all(&ps->wait_for_resume); in usbfs_notify_resume()
748 static int claimintf(struct usb_dev_state *ps, unsigned int ifnum) in claimintf() argument
750 struct usb_device *dev = ps->dev; in claimintf()
754 if (ifnum >= 8*sizeof(ps->ifclaimed)) in claimintf()
757 if (test_bit(ifnum, &ps->ifclaimed)) in claimintf()
760 if (ps->privileges_dropped && in claimintf()
761 !test_bit(ifnum, &ps->interface_allowed_mask)) in claimintf()
768 err = usb_driver_claim_interface(&usbfs_driver, intf, ps); in claimintf()
770 set_bit(ifnum, &ps->ifclaimed); in claimintf()
774 static int releaseintf(struct usb_dev_state *ps, unsigned int ifnum) in releaseintf() argument
781 if (ifnum >= 8*sizeof(ps->ifclaimed)) in releaseintf()
783 dev = ps->dev; in releaseintf()
787 else if (test_and_clear_bit(ifnum, &ps->ifclaimed)) { in releaseintf()
794 static int checkintf(struct usb_dev_state *ps, unsigned int ifnum) in checkintf() argument
796 if (ps->dev->state != USB_STATE_CONFIGURED) in checkintf()
798 if (ifnum >= 8*sizeof(ps->ifclaimed)) in checkintf()
800 if (test_bit(ifnum, &ps->ifclaimed)) in checkintf()
803 dev_warn(&ps->dev->dev, "usbfs: process %d (%s) did not claim " in checkintf()
806 return claimintf(ps, ifnum); in checkintf()
834 static int check_ctrlrecip(struct usb_dev_state *ps, unsigned int requesttype, in check_ctrlrecip() argument
840 if (ps->dev->state != USB_STATE_UNAUTHENTICATED in check_ctrlrecip()
841 && ps->dev->state != USB_STATE_ADDRESS in check_ctrlrecip()
842 && ps->dev->state != USB_STATE_CONFIGURED) in check_ctrlrecip()
853 alt_setting = usb_find_alt_setting(ps->dev->actconfig, in check_ctrlrecip()
865 ret = findintfep(ps->dev, index); in check_ctrlrecip()
875 ret = findintfep(ps->dev, index ^ 0x80); in check_ctrlrecip()
877 dev_info(&ps->dev->dev, in check_ctrlrecip()
883 ret = checkintf(ps, ret); in check_ctrlrecip()
887 ret = checkintf(ps, index); in check_ctrlrecip()
902 static int parse_usbdevfs_streams(struct usb_dev_state *ps, in parse_usbdevfs_streams() argument
935 eps[i] = ep_to_host_endpoint(ps->dev, ep); in parse_usbdevfs_streams()
942 ifnum = findintfep(ps->dev, ep); in parse_usbdevfs_streams()
949 ret = checkintf(ps, ifnum); in parse_usbdevfs_streams()
952 intf = usb_ifnum_to_if(ps->dev, ifnum); in parse_usbdevfs_streams()
991 struct usb_dev_state *ps; in usbdev_open() local
995 ps = kzalloc(sizeof(struct usb_dev_state), GFP_KERNEL); in usbdev_open()
996 if (!ps) in usbdev_open()
1015 ps->dev = dev; in usbdev_open()
1016 ps->file = file; in usbdev_open()
1017 ps->interface_allowed_mask = 0xFFFFFFFF; /* 32 bits */ in usbdev_open()
1018 spin_lock_init(&ps->lock); in usbdev_open()
1019 INIT_LIST_HEAD(&ps->list); in usbdev_open()
1020 INIT_LIST_HEAD(&ps->async_pending); in usbdev_open()
1021 INIT_LIST_HEAD(&ps->async_completed); in usbdev_open()
1022 INIT_LIST_HEAD(&ps->memory_list); in usbdev_open()
1023 init_waitqueue_head(&ps->wait); in usbdev_open()
1024 init_waitqueue_head(&ps->wait_for_resume); in usbdev_open()
1025 ps->disc_pid = get_pid(task_pid(current)); in usbdev_open()
1026 ps->cred = get_current_cred(); in usbdev_open()
1030 list_add_tail(&ps->list, &dev->filelist); in usbdev_open()
1031 file->private_data = ps; in usbdev_open()
1041 kfree(ps); in usbdev_open()
1047 struct usb_dev_state *ps = file->private_data; in usbdev_release() local
1048 struct usb_device *dev = ps->dev; in usbdev_release()
1053 usb_hub_release_all_ports(dev, ps); in usbdev_release()
1057 list_del_init(&ps->list); in usbdev_release()
1060 for (ifnum = 0; ps->ifclaimed && ifnum < 8*sizeof(ps->ifclaimed); in usbdev_release()
1062 if (test_bit(ifnum, &ps->ifclaimed)) in usbdev_release()
1063 releaseintf(ps, ifnum); in usbdev_release()
1065 destroy_all_async(ps); in usbdev_release()
1066 if (!ps->suspend_allowed) in usbdev_release()
1070 put_pid(ps->disc_pid); in usbdev_release()
1071 put_cred(ps->cred); in usbdev_release()
1073 as = async_getcompleted(ps); in usbdev_release()
1076 as = async_getcompleted(ps); in usbdev_release()
1079 kfree(ps); in usbdev_release()
1083 static int proc_control(struct usb_dev_state *ps, void __user *arg) in proc_control() argument
1085 struct usb_device *dev = ps->dev; in proc_control()
1094 ret = check_ctrlrecip(ps, ctrl.bRequestType, ctrl.bRequest, in proc_control()
1170 static int proc_bulk(struct usb_dev_state *ps, void __user *arg) in proc_bulk() argument
1172 struct usb_device *dev = ps->dev; in proc_bulk()
1181 ret = findintfep(ps->dev, bulk.ep); in proc_bulk()
1184 ret = checkintf(ps, ret); in proc_bulk()
1258 static int proc_resetep(struct usb_dev_state *ps, void __user *arg) in proc_resetep() argument
1265 ret = findintfep(ps->dev, ep); in proc_resetep()
1268 ret = checkintf(ps, ret); in proc_resetep()
1271 check_reset_of_active_ep(ps->dev, ep, "RESETEP"); in proc_resetep()
1272 usb_reset_endpoint(ps->dev, ep); in proc_resetep()
1276 static int proc_clearhalt(struct usb_dev_state *ps, void __user *arg) in proc_clearhalt() argument
1284 ret = findintfep(ps->dev, ep); in proc_clearhalt()
1287 ret = checkintf(ps, ret); in proc_clearhalt()
1290 check_reset_of_active_ep(ps->dev, ep, "CLEAR_HALT"); in proc_clearhalt()
1292 pipe = usb_rcvbulkpipe(ps->dev, ep & 0x7f); in proc_clearhalt()
1294 pipe = usb_sndbulkpipe(ps->dev, ep & 0x7f); in proc_clearhalt()
1296 return usb_clear_halt(ps->dev, pipe); in proc_clearhalt()
1299 static int proc_getdriver(struct usb_dev_state *ps, void __user *arg) in proc_getdriver() argument
1307 intf = usb_ifnum_to_if(ps->dev, gd.interface); in proc_getdriver()
1318 static int proc_connectinfo(struct usb_dev_state *ps, void __user *arg) in proc_connectinfo() argument
1323 ci.devnum = ps->dev->devnum; in proc_connectinfo()
1324 ci.slow = ps->dev->speed == USB_SPEED_LOW; in proc_connectinfo()
1331 static int proc_conninfo_ex(struct usb_dev_state *ps, in proc_conninfo_ex() argument
1335 struct usb_device *udev = ps->dev; in proc_conninfo_ex()
1364 static int proc_resetdevice(struct usb_dev_state *ps) in proc_resetdevice() argument
1366 struct usb_host_config *actconfig = ps->dev->actconfig; in proc_resetdevice()
1374 if (ps->privileges_dropped && actconfig) { in proc_resetdevice()
1379 !test_bit(number, &ps->ifclaimed)) { in proc_resetdevice()
1380 dev_warn(&ps->dev->dev, in proc_resetdevice()
1388 return usb_reset_device(ps->dev); in proc_resetdevice()
1391 static int proc_setintf(struct usb_dev_state *ps, void __user *arg) in proc_setintf() argument
1398 ret = checkintf(ps, setintf.interface); in proc_setintf()
1402 destroy_async_on_interface(ps, setintf.interface); in proc_setintf()
1404 return usb_set_interface(ps->dev, setintf.interface, in proc_setintf()
1408 static int proc_setconfig(struct usb_dev_state *ps, void __user *arg) in proc_setconfig() argument
1417 actconfig = ps->dev->actconfig; in proc_setconfig()
1428 dev_warn(&ps->dev->dev, in proc_setconfig()
1448 status = usb_reset_configuration(ps->dev); in proc_setconfig()
1450 status = usb_set_configuration(ps->dev, u); in proc_setconfig()
1457 find_memory_area(struct usb_dev_state *ps, const struct usbdevfs_urb *uurb) in find_memory_area() argument
1463 spin_lock_irqsave(&ps->lock, flags); in find_memory_area()
1464 list_for_each_entry(iter, &ps->memory_list, memlist) { in find_memory_area()
1477 spin_unlock_irqrestore(&ps->lock, flags); in find_memory_area()
1481 static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb, in proc_do_submiturb() argument
1515 ifnum = findintfep(ps->dev, uurb->endpoint); in proc_do_submiturb()
1518 ret = checkintf(ps, ifnum); in proc_do_submiturb()
1522 ep = ep_to_host_endpoint(ps->dev, uurb->endpoint); in proc_do_submiturb()
1546 ret = check_ctrlrecip(ps, dr->bRequestType, dr->bRequest, in proc_do_submiturb()
1561 snoop(&ps->dev->dev, "control urb: bRequestType=%02x " in proc_do_submiturb()
1586 if (num_sgs == 1 || num_sgs > ps->dev->bus->sg_tablesize) in proc_do_submiturb()
1648 as->usbm = find_memory_area(ps, uurb); in proc_do_submiturb()
1731 as->urb->dev = ps->dev; in proc_do_submiturb()
1733 __create_pipe(ps->dev, uurb->endpoint & 0xf) | in proc_do_submiturb()
1752 dev_warn(&ps->dev->dev, "Requested nonsensical USBDEVFS_URB_SHORT_NOT_OK.\n"); in proc_do_submiturb()
1754 dev_warn(&ps->dev->dev, "Requested nonsensical USBDEVFS_URB_ZERO_PACKET.\n"); in proc_do_submiturb()
1765 ps->dev->speed == USB_SPEED_HIGH || in proc_do_submiturb()
1766 ps->dev->speed >= USB_SPEED_SUPER) in proc_do_submiturb()
1782 as->ps = ps; in proc_do_submiturb()
1797 snoop_urb(ps->dev, as->userurb, as->urb->pipe, in proc_do_submiturb()
1806 spin_lock_irq(&ps->lock); in proc_do_submiturb()
1822 ps->disabled_bulk_eps &= ~(1 << as->bulk_addr); in proc_do_submiturb()
1827 if (ps->disabled_bulk_eps & (1 << as->bulk_addr)) in proc_do_submiturb()
1831 spin_unlock_irq(&ps->lock); in proc_do_submiturb()
1837 dev_printk(KERN_DEBUG, &ps->dev->dev, in proc_do_submiturb()
1839 snoop_urb(ps->dev, as->userurb, as->urb->pipe, in proc_do_submiturb()
1854 static int proc_submiturb(struct usb_dev_state *ps, void __user *arg) in proc_submiturb() argument
1865 return proc_do_submiturb(ps, &uurb, in proc_submiturb()
1870 static int proc_unlinkurb(struct usb_dev_state *ps, void __user *arg) in proc_unlinkurb() argument
1876 spin_lock_irqsave(&ps->lock, flags); in proc_unlinkurb()
1877 as = async_getpending(ps, arg); in proc_unlinkurb()
1879 spin_unlock_irqrestore(&ps->lock, flags); in proc_unlinkurb()
1885 spin_unlock_irqrestore(&ps->lock, flags); in proc_unlinkurb()
1943 static struct async *reap_as(struct usb_dev_state *ps) in reap_as() argument
1947 struct usb_device *dev = ps->dev; in reap_as()
1949 add_wait_queue(&ps->wait, &wait); in reap_as()
1952 as = async_getcompleted(ps); in reap_as()
1953 if (as || !connected(ps)) in reap_as()
1961 remove_wait_queue(&ps->wait, &wait); in reap_as()
1966 static int proc_reapurb(struct usb_dev_state *ps, void __user *arg) in proc_reapurb() argument
1968 struct async *as = reap_as(ps); in proc_reapurb()
1973 snoop(&ps->dev->dev, "reap %pK\n", as->userurb); in proc_reapurb()
1983 static int proc_reapurbnonblock(struct usb_dev_state *ps, void __user *arg) in proc_reapurbnonblock() argument
1988 as = async_getcompleted(ps); in proc_reapurbnonblock()
1990 snoop(&ps->dev->dev, "reap %pK\n", as->userurb); in proc_reapurbnonblock()
1994 retval = (connected(ps) ? -EAGAIN : -ENODEV); in proc_reapurbnonblock()
2000 static int proc_control_compat(struct usb_dev_state *ps, in proc_control_compat() argument
2010 return proc_control(ps, p); in proc_control_compat()
2013 static int proc_bulk_compat(struct usb_dev_state *ps, in proc_bulk_compat() argument
2028 return proc_bulk(ps, p); in proc_bulk_compat()
2030 static int proc_disconnectsignal_compat(struct usb_dev_state *ps, void __user *arg) in proc_disconnectsignal_compat() argument
2036 ps->discsignr = ds.signr; in proc_disconnectsignal_compat()
2037 ps->disccontext.sival_int = ds.context; in proc_disconnectsignal_compat()
2062 static int proc_submiturb_compat(struct usb_dev_state *ps, void __user *arg) in proc_submiturb_compat() argument
2073 return proc_do_submiturb(ps, &uurb, in proc_submiturb_compat()
2113 static int proc_reapurb_compat(struct usb_dev_state *ps, void __user *arg) in proc_reapurb_compat() argument
2115 struct async *as = reap_as(ps); in proc_reapurb_compat()
2120 snoop(&ps->dev->dev, "reap %pK\n", as->userurb); in proc_reapurb_compat()
2130 static int proc_reapurbnonblock_compat(struct usb_dev_state *ps, void __user *arg) in proc_reapurbnonblock_compat() argument
2135 as = async_getcompleted(ps); in proc_reapurbnonblock_compat()
2137 snoop(&ps->dev->dev, "reap %pK\n", as->userurb); in proc_reapurbnonblock_compat()
2141 retval = (connected(ps) ? -EAGAIN : -ENODEV); in proc_reapurbnonblock_compat()
2149 static int proc_disconnectsignal(struct usb_dev_state *ps, void __user *arg) in proc_disconnectsignal() argument
2155 ps->discsignr = ds.signr; in proc_disconnectsignal()
2156 ps->disccontext.sival_ptr = ds.context; in proc_disconnectsignal()
2160 static int proc_claiminterface(struct usb_dev_state *ps, void __user *arg) in proc_claiminterface() argument
2166 return claimintf(ps, ifnum); in proc_claiminterface()
2169 static int proc_releaseinterface(struct usb_dev_state *ps, void __user *arg) in proc_releaseinterface() argument
2176 ret = releaseintf(ps, ifnum); in proc_releaseinterface()
2179 destroy_async_on_interface(ps, ifnum); in proc_releaseinterface()
2183 static int proc_ioctl(struct usb_dev_state *ps, struct usbdevfs_ioctl *ctl) in proc_ioctl() argument
2191 if (ps->privileges_dropped) in proc_ioctl()
2194 if (!connected(ps)) in proc_ioctl()
2213 if (ps->dev->state != USB_STATE_CONFIGURED) in proc_ioctl()
2215 else if (!(intf = usb_ifnum_to_if(ps->dev, ctl->ifno))) in proc_ioctl()
2261 static int proc_ioctl_default(struct usb_dev_state *ps, void __user *arg) in proc_ioctl_default() argument
2267 return proc_ioctl(ps, &ctrl); in proc_ioctl_default()
2271 static int proc_ioctl_compat(struct usb_dev_state *ps, compat_uptr_t arg) in proc_ioctl_compat() argument
2281 return proc_ioctl(ps, &ctrl); in proc_ioctl_compat()
2285 static int proc_claim_port(struct usb_dev_state *ps, void __user *arg) in proc_claim_port() argument
2292 rc = usb_hub_claim_port(ps->dev, portnum, ps); in proc_claim_port()
2294 snoop(&ps->dev->dev, "port %d claimed by process %d: %s\n", in proc_claim_port()
2299 static int proc_release_port(struct usb_dev_state *ps, void __user *arg) in proc_release_port() argument
2305 return usb_hub_release_port(ps->dev, portnum, ps); in proc_release_port()
2308 static int proc_get_capabilities(struct usb_dev_state *ps, void __user *arg) in proc_get_capabilities() argument
2316 if (!ps->dev->bus->no_stop_on_short) in proc_get_capabilities()
2318 if (ps->dev->bus->sg_tablesize) in proc_get_capabilities()
2327 static int proc_disconnect_claim(struct usb_dev_state *ps, void __user *arg) in proc_disconnect_claim() argument
2335 intf = usb_ifnum_to_if(ps->dev, dc.interface); in proc_disconnect_claim()
2342 if (ps->privileges_dropped) in proc_disconnect_claim()
2359 return claimintf(ps, dc.interface); in proc_disconnect_claim()
2362 static int proc_alloc_streams(struct usb_dev_state *ps, void __user *arg) in proc_alloc_streams() argument
2369 r = parse_usbdevfs_streams(ps, arg, &num_streams, &num_eps, in proc_alloc_streams()
2374 destroy_async_on_interface(ps, in proc_alloc_streams()
2382 static int proc_free_streams(struct usb_dev_state *ps, void __user *arg) in proc_free_streams() argument
2389 r = parse_usbdevfs_streams(ps, arg, NULL, &num_eps, &eps, &intf); in proc_free_streams()
2393 destroy_async_on_interface(ps, in proc_free_streams()
2401 static int proc_drop_privileges(struct usb_dev_state *ps, void __user *arg) in proc_drop_privileges() argument
2412 ps->interface_allowed_mask &= data; in proc_drop_privileges()
2413 ps->privileges_dropped = true; in proc_drop_privileges()
2418 static int proc_forbid_suspend(struct usb_dev_state *ps) in proc_forbid_suspend() argument
2422 if (ps->suspend_allowed) { in proc_forbid_suspend()
2423 ret = usb_autoresume_device(ps->dev); in proc_forbid_suspend()
2425 ps->suspend_allowed = false; in proc_forbid_suspend()
2432 static int proc_allow_suspend(struct usb_dev_state *ps) in proc_allow_suspend() argument
2434 if (!connected(ps)) in proc_allow_suspend()
2437 WRITE_ONCE(ps->not_yet_resumed, 1); in proc_allow_suspend()
2438 if (!ps->suspend_allowed) { in proc_allow_suspend()
2439 usb_autosuspend_device(ps->dev); in proc_allow_suspend()
2440 ps->suspend_allowed = true; in proc_allow_suspend()
2445 static int proc_wait_for_resume(struct usb_dev_state *ps) in proc_wait_for_resume() argument
2449 usb_unlock_device(ps->dev); in proc_wait_for_resume()
2450 ret = wait_event_interruptible(ps->wait_for_resume, in proc_wait_for_resume()
2451 READ_ONCE(ps->not_yet_resumed) == 0); in proc_wait_for_resume()
2452 usb_lock_device(ps->dev); in proc_wait_for_resume()
2456 return proc_forbid_suspend(ps); in proc_wait_for_resume()
2467 struct usb_dev_state *ps = file->private_data; in usbdev_do_ioctl() local
2469 struct usb_device *dev = ps->dev; in usbdev_do_ioctl()
2481 ret = proc_reapurb(ps, p); in usbdev_do_ioctl()
2486 ret = proc_reapurbnonblock(ps, p); in usbdev_do_ioctl()
2492 ret = proc_reapurb_compat(ps, p); in usbdev_do_ioctl()
2497 ret = proc_reapurbnonblock_compat(ps, p); in usbdev_do_ioctl()
2502 if (!connected(ps)) { in usbdev_do_ioctl()
2510 ret = proc_control(ps, p); in usbdev_do_ioctl()
2517 ret = proc_bulk(ps, p); in usbdev_do_ioctl()
2524 ret = proc_resetep(ps, p); in usbdev_do_ioctl()
2531 ret = proc_resetdevice(ps); in usbdev_do_ioctl()
2536 ret = proc_clearhalt(ps, p); in usbdev_do_ioctl()
2543 ret = proc_getdriver(ps, p); in usbdev_do_ioctl()
2548 ret = proc_connectinfo(ps, p); in usbdev_do_ioctl()
2553 ret = proc_setintf(ps, p); in usbdev_do_ioctl()
2558 ret = proc_setconfig(ps, p); in usbdev_do_ioctl()
2563 ret = proc_submiturb(ps, p); in usbdev_do_ioctl()
2571 ret = proc_control_compat(ps, p); in usbdev_do_ioctl()
2578 ret = proc_bulk_compat(ps, p); in usbdev_do_ioctl()
2585 ret = proc_disconnectsignal_compat(ps, p); in usbdev_do_ioctl()
2590 ret = proc_submiturb_compat(ps, p); in usbdev_do_ioctl()
2597 ret = proc_ioctl_compat(ps, ptr_to_compat(p)); in usbdev_do_ioctl()
2603 ret = proc_unlinkurb(ps, p); in usbdev_do_ioctl()
2608 ret = proc_disconnectsignal(ps, p); in usbdev_do_ioctl()
2613 ret = proc_claiminterface(ps, p); in usbdev_do_ioctl()
2618 ret = proc_releaseinterface(ps, p); in usbdev_do_ioctl()
2623 ret = proc_ioctl_default(ps, p); in usbdev_do_ioctl()
2628 ret = proc_claim_port(ps, p); in usbdev_do_ioctl()
2633 ret = proc_release_port(ps, p); in usbdev_do_ioctl()
2636 ret = proc_get_capabilities(ps, p); in usbdev_do_ioctl()
2639 ret = proc_disconnect_claim(ps, p); in usbdev_do_ioctl()
2642 ret = proc_alloc_streams(ps, p); in usbdev_do_ioctl()
2645 ret = proc_free_streams(ps, p); in usbdev_do_ioctl()
2648 ret = proc_drop_privileges(ps, p); in usbdev_do_ioctl()
2651 ret = ps->dev->speed; in usbdev_do_ioctl()
2654 ret = proc_forbid_suspend(ps); in usbdev_do_ioctl()
2657 ret = proc_allow_suspend(ps); in usbdev_do_ioctl()
2660 ret = proc_wait_for_resume(ps); in usbdev_do_ioctl()
2667 ret = proc_conninfo_ex(ps, p, _IOC_SIZE(cmd)); in usbdev_do_ioctl()
2704 struct usb_dev_state *ps = file->private_data; in usbdev_poll() local
2707 poll_wait(file, &ps->wait, wait); in usbdev_poll()
2708 if (file->f_mode & FMODE_WRITE && !list_empty(&ps->async_completed)) in usbdev_poll()
2710 if (!connected(ps)) in usbdev_poll()
2712 if (list_empty(&ps->list)) in usbdev_poll()
2733 struct usb_dev_state *ps; in usbdev_remove() local
2738 ps = list_entry(udev->filelist.next, struct usb_dev_state, list); in usbdev_remove()
2739 destroy_all_async(ps); in usbdev_remove()
2740 wake_up_all(&ps->wait); in usbdev_remove()
2741 WRITE_ONCE(ps->not_yet_resumed, 0); in usbdev_remove()
2742 wake_up_all(&ps->wait_for_resume); in usbdev_remove()
2743 list_del_init(&ps->list); in usbdev_remove()
2744 if (ps->discsignr) in usbdev_remove()
2745 kill_pid_usb_asyncio(ps->discsignr, EPIPE, ps->disccontext, in usbdev_remove()
2746 ps->disc_pid, ps->cred); in usbdev_remove()