Lines Matching refs:ps
91 struct usb_dev_state *ps; member
96 struct usb_dev_state *ps; member
168 static int connected(struct usb_dev_state *ps) in connected() argument
170 return (!list_empty(&ps->list) && in connected()
171 ps->dev->state != USB_STATE_NOTATTACHED); in connected()
176 struct usb_dev_state *ps = usbm->ps; in dec_usb_memory_use_count() local
177 struct usb_hcd *hcd = bus_to_hcd(ps->dev->bus); in dec_usb_memory_use_count()
180 spin_lock_irqsave(&ps->lock, flags); in dec_usb_memory_use_count()
184 spin_unlock_irqrestore(&ps->lock, flags); in dec_usb_memory_use_count()
192 spin_unlock_irqrestore(&ps->lock, flags); in dec_usb_memory_use_count()
201 spin_lock_irqsave(&usbm->ps->lock, flags); in usbdev_vm_open()
203 spin_unlock_irqrestore(&usbm->ps->lock, flags); in usbdev_vm_open()
221 struct usb_dev_state *ps = file->private_data; in usbdev_mmap() local
222 struct usb_hcd *hcd = bus_to_hcd(ps->dev->bus); in usbdev_mmap()
251 usbm->ps = ps; in usbdev_mmap()
283 spin_lock_irqsave(&ps->lock, flags); in usbdev_mmap()
284 list_add_tail(&usbm->memlist, &ps->memory_list); in usbdev_mmap()
285 spin_unlock_irqrestore(&ps->lock, flags); in usbdev_mmap()
300 struct usb_dev_state *ps = file->private_data; in usbdev_read() local
301 struct usb_device *dev = ps->dev; in usbdev_read()
309 if (!connected(ps)) { in usbdev_read()
428 struct usb_dev_state *ps = as->ps; in async_newpending() local
431 spin_lock_irqsave(&ps->lock, flags); in async_newpending()
432 list_add_tail(&as->asynclist, &ps->async_pending); in async_newpending()
433 spin_unlock_irqrestore(&ps->lock, flags); in async_newpending()
438 struct usb_dev_state *ps = as->ps; in async_removepending() local
441 spin_lock_irqsave(&ps->lock, flags); in async_removepending()
443 spin_unlock_irqrestore(&ps->lock, flags); in async_removepending()
446 static struct async *async_getcompleted(struct usb_dev_state *ps) in async_getcompleted() argument
451 spin_lock_irqsave(&ps->lock, flags); in async_getcompleted()
452 if (!list_empty(&ps->async_completed)) { in async_getcompleted()
453 as = list_entry(ps->async_completed.next, struct async, in async_getcompleted()
457 spin_unlock_irqrestore(&ps->lock, flags); in async_getcompleted()
461 static struct async *async_getpending(struct usb_dev_state *ps, in async_getpending() argument
466 list_for_each_entry(as, &ps->async_pending, asynclist) in async_getpending()
571 static void cancel_bulk_urbs(struct usb_dev_state *ps, unsigned bulk_addr) in cancel_bulk_urbs() argument
572 __releases(ps->lock) in cancel_bulk_urbs()
573 __acquires(ps->lock) in cancel_bulk_urbs()
583 list_for_each_entry(as, &ps->async_pending, asynclist) { in cancel_bulk_urbs()
591 ps->disabled_bulk_eps |= (1 << bulk_addr); in cancel_bulk_urbs()
595 list_for_each_entry_reverse(as, &ps->async_pending, asynclist) { in cancel_bulk_urbs()
600 spin_unlock(&ps->lock); /* Allow completions */ in cancel_bulk_urbs()
603 spin_lock(&ps->lock); in cancel_bulk_urbs()
612 struct usb_dev_state *ps = as->ps; in async_completed() local
619 spin_lock_irqsave(&ps->lock, flags); in async_completed()
620 list_move_tail(&as->asynclist, &ps->async_completed); in async_completed()
637 cancel_bulk_urbs(ps, as->bulk_addr); in async_completed()
639 wake_up(&ps->wait); in async_completed()
640 spin_unlock_irqrestore(&ps->lock, flags); in async_completed()
649 static void destroy_async(struct usb_dev_state *ps, struct list_head *list) in destroy_async() argument
655 spin_lock_irqsave(&ps->lock, flags); in destroy_async()
663 spin_unlock_irqrestore(&ps->lock, flags); in destroy_async()
666 spin_lock_irqsave(&ps->lock, flags); in destroy_async()
668 spin_unlock_irqrestore(&ps->lock, flags); in destroy_async()
671 static void destroy_async_on_interface(struct usb_dev_state *ps, in destroy_async_on_interface() argument
678 spin_lock_irqsave(&ps->lock, flags); in destroy_async_on_interface()
679 list_for_each_safe(p, q, &ps->async_pending) in destroy_async_on_interface()
682 spin_unlock_irqrestore(&ps->lock, flags); in destroy_async_on_interface()
683 destroy_async(ps, &hitlist); in destroy_async_on_interface()
686 static void destroy_all_async(struct usb_dev_state *ps) in destroy_all_async() argument
688 destroy_async(ps, &ps->async_pending); in destroy_all_async()
705 struct usb_dev_state *ps = usb_get_intfdata(intf); in driver_disconnect() local
708 if (!ps) in driver_disconnect()
715 if (likely(ifnum < 8*sizeof(ps->ifclaimed))) in driver_disconnect()
716 clear_bit(ifnum, &ps->ifclaimed); in driver_disconnect()
724 destroy_async_on_interface(ps, ifnum); in driver_disconnect()
747 struct usb_dev_state *ps; in usbfs_notify_resume() local
751 list_for_each_entry(ps, &udev->filelist, list) { in usbfs_notify_resume()
752 WRITE_ONCE(ps->not_yet_resumed, 0); in usbfs_notify_resume()
753 wake_up_all(&ps->wait_for_resume); in usbfs_notify_resume()
768 static int claimintf(struct usb_dev_state *ps, unsigned int ifnum) in claimintf() argument
770 struct usb_device *dev = ps->dev; in claimintf()
774 if (ifnum >= 8*sizeof(ps->ifclaimed)) in claimintf()
777 if (test_bit(ifnum, &ps->ifclaimed)) in claimintf()
780 if (ps->privileges_dropped && in claimintf()
781 !test_bit(ifnum, &ps->interface_allowed_mask)) in claimintf()
793 err = usb_driver_claim_interface(&usbfs_driver, intf, ps); in claimintf()
797 set_bit(ifnum, &ps->ifclaimed); in claimintf()
801 static int releaseintf(struct usb_dev_state *ps, unsigned int ifnum) in releaseintf() argument
808 if (ifnum >= 8*sizeof(ps->ifclaimed)) in releaseintf()
810 dev = ps->dev; in releaseintf()
814 else if (test_and_clear_bit(ifnum, &ps->ifclaimed)) { in releaseintf()
827 static int checkintf(struct usb_dev_state *ps, unsigned int ifnum) in checkintf() argument
829 if (ps->dev->state != USB_STATE_CONFIGURED) in checkintf()
831 if (ifnum >= 8*sizeof(ps->ifclaimed)) in checkintf()
833 if (test_bit(ifnum, &ps->ifclaimed)) in checkintf()
836 dev_warn(&ps->dev->dev, "usbfs: process %d (%s) did not claim " in checkintf()
839 return claimintf(ps, ifnum); in checkintf()
867 static int check_ctrlrecip(struct usb_dev_state *ps, unsigned int requesttype, in check_ctrlrecip() argument
873 if (ps->dev->state != USB_STATE_UNAUTHENTICATED in check_ctrlrecip()
874 && ps->dev->state != USB_STATE_ADDRESS in check_ctrlrecip()
875 && ps->dev->state != USB_STATE_CONFIGURED) in check_ctrlrecip()
886 alt_setting = usb_find_alt_setting(ps->dev->actconfig, in check_ctrlrecip()
898 ret = findintfep(ps->dev, index); in check_ctrlrecip()
908 ret = findintfep(ps->dev, index ^ 0x80); in check_ctrlrecip()
910 dev_info(&ps->dev->dev, in check_ctrlrecip()
916 ret = checkintf(ps, ret); in check_ctrlrecip()
920 ret = checkintf(ps, index); in check_ctrlrecip()
935 static int parse_usbdevfs_streams(struct usb_dev_state *ps, in parse_usbdevfs_streams() argument
968 eps[i] = ep_to_host_endpoint(ps->dev, ep); in parse_usbdevfs_streams()
975 ifnum = findintfep(ps->dev, ep); in parse_usbdevfs_streams()
982 ret = checkintf(ps, ifnum); in parse_usbdevfs_streams()
985 intf = usb_ifnum_to_if(ps->dev, ifnum); in parse_usbdevfs_streams()
1024 struct usb_dev_state *ps; in usbdev_open() local
1028 ps = kzalloc(sizeof(struct usb_dev_state), GFP_KERNEL); in usbdev_open()
1029 if (!ps) in usbdev_open()
1048 ps->dev = dev; in usbdev_open()
1049 ps->file = file; in usbdev_open()
1050 ps->interface_allowed_mask = 0xFFFFFFFF; /* 32 bits */ in usbdev_open()
1051 spin_lock_init(&ps->lock); in usbdev_open()
1052 INIT_LIST_HEAD(&ps->list); in usbdev_open()
1053 INIT_LIST_HEAD(&ps->async_pending); in usbdev_open()
1054 INIT_LIST_HEAD(&ps->async_completed); in usbdev_open()
1055 INIT_LIST_HEAD(&ps->memory_list); in usbdev_open()
1056 init_waitqueue_head(&ps->wait); in usbdev_open()
1057 init_waitqueue_head(&ps->wait_for_resume); in usbdev_open()
1058 ps->disc_pid = get_pid(task_pid(current)); in usbdev_open()
1059 ps->cred = get_current_cred(); in usbdev_open()
1063 list_add_tail(&ps->list, &dev->filelist); in usbdev_open()
1064 file->private_data = ps; in usbdev_open()
1074 kfree(ps); in usbdev_open()
1080 struct usb_dev_state *ps = file->private_data; in usbdev_release() local
1081 struct usb_device *dev = ps->dev; in usbdev_release()
1086 usb_hub_release_all_ports(dev, ps); in usbdev_release()
1090 list_del_init(&ps->list); in usbdev_release()
1093 for (ifnum = 0; ps->ifclaimed && ifnum < 8*sizeof(ps->ifclaimed); in usbdev_release()
1095 if (test_bit(ifnum, &ps->ifclaimed)) in usbdev_release()
1096 releaseintf(ps, ifnum); in usbdev_release()
1098 destroy_all_async(ps); in usbdev_release()
1099 if (!ps->suspend_allowed) in usbdev_release()
1103 put_pid(ps->disc_pid); in usbdev_release()
1104 put_cred(ps->cred); in usbdev_release()
1106 as = async_getcompleted(ps); in usbdev_release()
1109 as = async_getcompleted(ps); in usbdev_release()
1112 kfree(ps); in usbdev_release()
1155 static int do_proc_control(struct usb_dev_state *ps, in do_proc_control() argument
1158 struct usb_device *dev = ps->dev; in do_proc_control()
1166 ret = check_ctrlrecip(ps, ctrl->bRequestType, ctrl->bRequest, in do_proc_control()
1260 static int proc_control(struct usb_dev_state *ps, void __user *arg) in proc_control() argument
1266 return do_proc_control(ps, &ctrl); in proc_control()
1269 static int do_proc_bulk(struct usb_dev_state *ps, in do_proc_bulk() argument
1272 struct usb_device *dev = ps->dev; in do_proc_bulk()
1279 ret = findintfep(ps->dev, bulk->ep); in do_proc_bulk()
1282 ret = checkintf(ps, ret); in do_proc_bulk()
1359 static int proc_bulk(struct usb_dev_state *ps, void __user *arg) in proc_bulk() argument
1365 return do_proc_bulk(ps, &bulk); in proc_bulk()
1382 static int proc_resetep(struct usb_dev_state *ps, void __user *arg) in proc_resetep() argument
1389 ret = findintfep(ps->dev, ep); in proc_resetep()
1392 ret = checkintf(ps, ret); in proc_resetep()
1395 check_reset_of_active_ep(ps->dev, ep, "RESETEP"); in proc_resetep()
1396 usb_reset_endpoint(ps->dev, ep); in proc_resetep()
1400 static int proc_clearhalt(struct usb_dev_state *ps, void __user *arg) in proc_clearhalt() argument
1408 ret = findintfep(ps->dev, ep); in proc_clearhalt()
1411 ret = checkintf(ps, ret); in proc_clearhalt()
1414 check_reset_of_active_ep(ps->dev, ep, "CLEAR_HALT"); in proc_clearhalt()
1416 pipe = usb_rcvbulkpipe(ps->dev, ep & 0x7f); in proc_clearhalt()
1418 pipe = usb_sndbulkpipe(ps->dev, ep & 0x7f); in proc_clearhalt()
1420 return usb_clear_halt(ps->dev, pipe); in proc_clearhalt()
1423 static int proc_getdriver(struct usb_dev_state *ps, void __user *arg) in proc_getdriver() argument
1431 intf = usb_ifnum_to_if(ps->dev, gd.interface); in proc_getdriver()
1442 static int proc_connectinfo(struct usb_dev_state *ps, void __user *arg) in proc_connectinfo() argument
1447 ci.devnum = ps->dev->devnum; in proc_connectinfo()
1448 ci.slow = ps->dev->speed == USB_SPEED_LOW; in proc_connectinfo()
1455 static int proc_conninfo_ex(struct usb_dev_state *ps, in proc_conninfo_ex() argument
1459 struct usb_device *udev = ps->dev; in proc_conninfo_ex()
1488 static int proc_resetdevice(struct usb_dev_state *ps) in proc_resetdevice() argument
1490 struct usb_host_config *actconfig = ps->dev->actconfig; in proc_resetdevice()
1498 if (ps->privileges_dropped && actconfig) { in proc_resetdevice()
1503 !test_bit(number, &ps->ifclaimed)) { in proc_resetdevice()
1504 dev_warn(&ps->dev->dev, in proc_resetdevice()
1512 return usb_reset_device(ps->dev); in proc_resetdevice()
1515 static int proc_setintf(struct usb_dev_state *ps, void __user *arg) in proc_setintf() argument
1522 ret = checkintf(ps, setintf.interface); in proc_setintf()
1526 destroy_async_on_interface(ps, setintf.interface); in proc_setintf()
1528 return usb_set_interface(ps->dev, setintf.interface, in proc_setintf()
1532 static int proc_setconfig(struct usb_dev_state *ps, void __user *arg) in proc_setconfig() argument
1541 actconfig = ps->dev->actconfig; in proc_setconfig()
1552 dev_warn(&ps->dev->dev, in proc_setconfig()
1572 status = usb_reset_configuration(ps->dev); in proc_setconfig()
1574 status = usb_set_configuration(ps->dev, u); in proc_setconfig()
1581 find_memory_area(struct usb_dev_state *ps, const struct usbdevfs_urb *uurb) in find_memory_area() argument
1587 spin_lock_irqsave(&ps->lock, flags); in find_memory_area()
1588 list_for_each_entry(iter, &ps->memory_list, memlist) { in find_memory_area()
1601 spin_unlock_irqrestore(&ps->lock, flags); in find_memory_area()
1605 static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb, in proc_do_submiturb() argument
1639 ifnum = findintfep(ps->dev, uurb->endpoint); in proc_do_submiturb()
1642 ret = checkintf(ps, ifnum); in proc_do_submiturb()
1646 ep = ep_to_host_endpoint(ps->dev, uurb->endpoint); in proc_do_submiturb()
1670 ret = check_ctrlrecip(ps, dr->bRequestType, dr->bRequest, in proc_do_submiturb()
1685 snoop(&ps->dev->dev, "control urb: bRequestType=%02x " in proc_do_submiturb()
1710 if (num_sgs == 1 || num_sgs > ps->dev->bus->sg_tablesize) in proc_do_submiturb()
1772 as->usbm = find_memory_area(ps, uurb); in proc_do_submiturb()
1855 as->urb->dev = ps->dev; in proc_do_submiturb()
1857 __create_pipe(ps->dev, uurb->endpoint & 0xf) | in proc_do_submiturb()
1876 dev_warn(&ps->dev->dev, "Requested nonsensical USBDEVFS_URB_SHORT_NOT_OK.\n"); in proc_do_submiturb()
1878 dev_warn(&ps->dev->dev, "Requested nonsensical USBDEVFS_URB_ZERO_PACKET.\n"); in proc_do_submiturb()
1889 ps->dev->speed == USB_SPEED_HIGH || in proc_do_submiturb()
1890 ps->dev->speed >= USB_SPEED_SUPER) in proc_do_submiturb()
1906 as->ps = ps; in proc_do_submiturb()
1921 snoop_urb(ps->dev, as->userurb, as->urb->pipe, in proc_do_submiturb()
1930 spin_lock_irq(&ps->lock); in proc_do_submiturb()
1946 ps->disabled_bulk_eps &= ~(1 << as->bulk_addr); in proc_do_submiturb()
1951 if (ps->disabled_bulk_eps & (1 << as->bulk_addr)) in proc_do_submiturb()
1955 spin_unlock_irq(&ps->lock); in proc_do_submiturb()
1961 dev_printk(KERN_DEBUG, &ps->dev->dev, in proc_do_submiturb()
1963 snoop_urb(ps->dev, as->userurb, as->urb->pipe, in proc_do_submiturb()
1978 static int proc_submiturb(struct usb_dev_state *ps, void __user *arg) in proc_submiturb() argument
1989 return proc_do_submiturb(ps, &uurb, in proc_submiturb()
1994 static int proc_unlinkurb(struct usb_dev_state *ps, void __user *arg) in proc_unlinkurb() argument
2000 spin_lock_irqsave(&ps->lock, flags); in proc_unlinkurb()
2001 as = async_getpending(ps, arg); in proc_unlinkurb()
2003 spin_unlock_irqrestore(&ps->lock, flags); in proc_unlinkurb()
2009 spin_unlock_irqrestore(&ps->lock, flags); in proc_unlinkurb()
2067 static struct async *reap_as(struct usb_dev_state *ps) in reap_as() argument
2071 struct usb_device *dev = ps->dev; in reap_as()
2073 add_wait_queue(&ps->wait, &wait); in reap_as()
2076 as = async_getcompleted(ps); in reap_as()
2077 if (as || !connected(ps)) in reap_as()
2085 remove_wait_queue(&ps->wait, &wait); in reap_as()
2090 static int proc_reapurb(struct usb_dev_state *ps, void __user *arg) in proc_reapurb() argument
2092 struct async *as = reap_as(ps); in proc_reapurb()
2097 snoop(&ps->dev->dev, "reap %px\n", as->userurb); in proc_reapurb()
2107 static int proc_reapurbnonblock(struct usb_dev_state *ps, void __user *arg) in proc_reapurbnonblock() argument
2112 as = async_getcompleted(ps); in proc_reapurbnonblock()
2114 snoop(&ps->dev->dev, "reap %px\n", as->userurb); in proc_reapurbnonblock()
2118 retval = (connected(ps) ? -EAGAIN : -ENODEV); in proc_reapurbnonblock()
2124 static int proc_control_compat(struct usb_dev_state *ps, in proc_control_compat() argument
2134 return do_proc_control(ps, &ctrl); in proc_control_compat()
2137 static int proc_bulk_compat(struct usb_dev_state *ps, in proc_bulk_compat() argument
2149 return do_proc_bulk(ps, &bulk); in proc_bulk_compat()
2152 static int proc_disconnectsignal_compat(struct usb_dev_state *ps, void __user *arg) in proc_disconnectsignal_compat() argument
2158 ps->discsignr = ds.signr; in proc_disconnectsignal_compat()
2159 ps->disccontext.sival_int = ds.context; in proc_disconnectsignal_compat()
2184 static int proc_submiturb_compat(struct usb_dev_state *ps, void __user *arg) in proc_submiturb_compat() argument
2195 return proc_do_submiturb(ps, &uurb, in proc_submiturb_compat()
2235 static int proc_reapurb_compat(struct usb_dev_state *ps, void __user *arg) in proc_reapurb_compat() argument
2237 struct async *as = reap_as(ps); in proc_reapurb_compat()
2242 snoop(&ps->dev->dev, "reap %px\n", as->userurb); in proc_reapurb_compat()
2252 static int proc_reapurbnonblock_compat(struct usb_dev_state *ps, void __user *arg) in proc_reapurbnonblock_compat() argument
2257 as = async_getcompleted(ps); in proc_reapurbnonblock_compat()
2259 snoop(&ps->dev->dev, "reap %px\n", as->userurb); in proc_reapurbnonblock_compat()
2263 retval = (connected(ps) ? -EAGAIN : -ENODEV); in proc_reapurbnonblock_compat()
2271 static int proc_disconnectsignal(struct usb_dev_state *ps, void __user *arg) in proc_disconnectsignal() argument
2277 ps->discsignr = ds.signr; in proc_disconnectsignal()
2278 ps->disccontext.sival_ptr = ds.context; in proc_disconnectsignal()
2282 static int proc_claiminterface(struct usb_dev_state *ps, void __user *arg) in proc_claiminterface() argument
2288 return claimintf(ps, ifnum); in proc_claiminterface()
2291 static int proc_releaseinterface(struct usb_dev_state *ps, void __user *arg) in proc_releaseinterface() argument
2298 ret = releaseintf(ps, ifnum); in proc_releaseinterface()
2301 destroy_async_on_interface(ps, ifnum); in proc_releaseinterface()
2305 static int proc_ioctl(struct usb_dev_state *ps, struct usbdevfs_ioctl *ctl) in proc_ioctl() argument
2313 if (ps->privileges_dropped) in proc_ioctl()
2316 if (!connected(ps)) in proc_ioctl()
2335 if (ps->dev->state != USB_STATE_CONFIGURED) in proc_ioctl()
2337 else if (!(intf = usb_ifnum_to_if(ps->dev, ctl->ifno))) in proc_ioctl()
2383 static int proc_ioctl_default(struct usb_dev_state *ps, void __user *arg) in proc_ioctl_default() argument
2389 return proc_ioctl(ps, &ctrl); in proc_ioctl_default()
2393 static int proc_ioctl_compat(struct usb_dev_state *ps, compat_uptr_t arg) in proc_ioctl_compat() argument
2403 return proc_ioctl(ps, &ctrl); in proc_ioctl_compat()
2407 static int proc_claim_port(struct usb_dev_state *ps, void __user *arg) in proc_claim_port() argument
2414 rc = usb_hub_claim_port(ps->dev, portnum, ps); in proc_claim_port()
2416 snoop(&ps->dev->dev, "port %d claimed by process %d: %s\n", in proc_claim_port()
2421 static int proc_release_port(struct usb_dev_state *ps, void __user *arg) in proc_release_port() argument
2427 return usb_hub_release_port(ps->dev, portnum, ps); in proc_release_port()
2430 static int proc_get_capabilities(struct usb_dev_state *ps, void __user *arg) in proc_get_capabilities() argument
2438 if (!ps->dev->bus->no_stop_on_short) in proc_get_capabilities()
2440 if (ps->dev->bus->sg_tablesize) in proc_get_capabilities()
2449 static int proc_disconnect_claim(struct usb_dev_state *ps, void __user *arg) in proc_disconnect_claim() argument
2457 intf = usb_ifnum_to_if(ps->dev, dc.interface); in proc_disconnect_claim()
2464 if (ps->privileges_dropped) in proc_disconnect_claim()
2481 return claimintf(ps, dc.interface); in proc_disconnect_claim()
2484 static int proc_alloc_streams(struct usb_dev_state *ps, void __user *arg) in proc_alloc_streams() argument
2491 r = parse_usbdevfs_streams(ps, arg, &num_streams, &num_eps, in proc_alloc_streams()
2496 destroy_async_on_interface(ps, in proc_alloc_streams()
2504 static int proc_free_streams(struct usb_dev_state *ps, void __user *arg) in proc_free_streams() argument
2511 r = parse_usbdevfs_streams(ps, arg, NULL, &num_eps, &eps, &intf); in proc_free_streams()
2515 destroy_async_on_interface(ps, in proc_free_streams()
2523 static int proc_drop_privileges(struct usb_dev_state *ps, void __user *arg) in proc_drop_privileges() argument
2534 ps->interface_allowed_mask &= data; in proc_drop_privileges()
2535 ps->privileges_dropped = true; in proc_drop_privileges()
2540 static int proc_forbid_suspend(struct usb_dev_state *ps) in proc_forbid_suspend() argument
2544 if (ps->suspend_allowed) { in proc_forbid_suspend()
2545 ret = usb_autoresume_device(ps->dev); in proc_forbid_suspend()
2547 ps->suspend_allowed = false; in proc_forbid_suspend()
2554 static int proc_allow_suspend(struct usb_dev_state *ps) in proc_allow_suspend() argument
2556 if (!connected(ps)) in proc_allow_suspend()
2559 WRITE_ONCE(ps->not_yet_resumed, 1); in proc_allow_suspend()
2560 if (!ps->suspend_allowed) { in proc_allow_suspend()
2561 usb_autosuspend_device(ps->dev); in proc_allow_suspend()
2562 ps->suspend_allowed = true; in proc_allow_suspend()
2567 static int proc_wait_for_resume(struct usb_dev_state *ps) in proc_wait_for_resume() argument
2571 usb_unlock_device(ps->dev); in proc_wait_for_resume()
2572 ret = wait_event_interruptible(ps->wait_for_resume, in proc_wait_for_resume()
2573 READ_ONCE(ps->not_yet_resumed) == 0); in proc_wait_for_resume()
2574 usb_lock_device(ps->dev); in proc_wait_for_resume()
2578 return proc_forbid_suspend(ps); in proc_wait_for_resume()
2589 struct usb_dev_state *ps = file->private_data; in usbdev_do_ioctl() local
2591 struct usb_device *dev = ps->dev; in usbdev_do_ioctl()
2603 ret = proc_reapurb(ps, p); in usbdev_do_ioctl()
2608 ret = proc_reapurbnonblock(ps, p); in usbdev_do_ioctl()
2614 ret = proc_reapurb_compat(ps, p); in usbdev_do_ioctl()
2619 ret = proc_reapurbnonblock_compat(ps, p); in usbdev_do_ioctl()
2624 if (!connected(ps)) { in usbdev_do_ioctl()
2632 ret = proc_control(ps, p); in usbdev_do_ioctl()
2639 ret = proc_bulk(ps, p); in usbdev_do_ioctl()
2646 ret = proc_resetep(ps, p); in usbdev_do_ioctl()
2653 ret = proc_resetdevice(ps); in usbdev_do_ioctl()
2658 ret = proc_clearhalt(ps, p); in usbdev_do_ioctl()
2665 ret = proc_getdriver(ps, p); in usbdev_do_ioctl()
2670 ret = proc_connectinfo(ps, p); in usbdev_do_ioctl()
2675 ret = proc_setintf(ps, p); in usbdev_do_ioctl()
2680 ret = proc_setconfig(ps, p); in usbdev_do_ioctl()
2685 ret = proc_submiturb(ps, p); in usbdev_do_ioctl()
2693 ret = proc_control_compat(ps, p); in usbdev_do_ioctl()
2700 ret = proc_bulk_compat(ps, p); in usbdev_do_ioctl()
2707 ret = proc_disconnectsignal_compat(ps, p); in usbdev_do_ioctl()
2712 ret = proc_submiturb_compat(ps, p); in usbdev_do_ioctl()
2719 ret = proc_ioctl_compat(ps, ptr_to_compat(p)); in usbdev_do_ioctl()
2725 ret = proc_unlinkurb(ps, p); in usbdev_do_ioctl()
2730 ret = proc_disconnectsignal(ps, p); in usbdev_do_ioctl()
2735 ret = proc_claiminterface(ps, p); in usbdev_do_ioctl()
2740 ret = proc_releaseinterface(ps, p); in usbdev_do_ioctl()
2745 ret = proc_ioctl_default(ps, p); in usbdev_do_ioctl()
2750 ret = proc_claim_port(ps, p); in usbdev_do_ioctl()
2755 ret = proc_release_port(ps, p); in usbdev_do_ioctl()
2758 ret = proc_get_capabilities(ps, p); in usbdev_do_ioctl()
2761 ret = proc_disconnect_claim(ps, p); in usbdev_do_ioctl()
2764 ret = proc_alloc_streams(ps, p); in usbdev_do_ioctl()
2767 ret = proc_free_streams(ps, p); in usbdev_do_ioctl()
2770 ret = proc_drop_privileges(ps, p); in usbdev_do_ioctl()
2773 ret = ps->dev->speed; in usbdev_do_ioctl()
2776 ret = proc_forbid_suspend(ps); in usbdev_do_ioctl()
2779 ret = proc_allow_suspend(ps); in usbdev_do_ioctl()
2782 ret = proc_wait_for_resume(ps); in usbdev_do_ioctl()
2789 ret = proc_conninfo_ex(ps, p, _IOC_SIZE(cmd)); in usbdev_do_ioctl()
2814 struct usb_dev_state *ps = file->private_data; in usbdev_poll() local
2817 poll_wait(file, &ps->wait, wait); in usbdev_poll()
2818 if (file->f_mode & FMODE_WRITE && !list_empty(&ps->async_completed)) in usbdev_poll()
2820 if (!connected(ps)) in usbdev_poll()
2822 if (list_empty(&ps->list)) in usbdev_poll()
2841 struct usb_dev_state *ps; in usbdev_remove() local
2846 ps = list_entry(udev->filelist.next, struct usb_dev_state, list); in usbdev_remove()
2847 destroy_all_async(ps); in usbdev_remove()
2848 wake_up_all(&ps->wait); in usbdev_remove()
2849 WRITE_ONCE(ps->not_yet_resumed, 0); in usbdev_remove()
2850 wake_up_all(&ps->wait_for_resume); in usbdev_remove()
2851 list_del_init(&ps->list); in usbdev_remove()
2852 if (ps->discsignr) in usbdev_remove()
2853 kill_pid_usb_asyncio(ps->discsignr, EPIPE, ps->disccontext, in usbdev_remove()
2854 ps->disc_pid, ps->cred); in usbdev_remove()