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
179 spin_lock_irqsave(&ps->lock, flags); in dec_usb_memory_use_count()
183 spin_unlock_irqrestore(&ps->lock, flags); in dec_usb_memory_use_count()
185 usb_free_coherent(ps->dev, usbm->size, usbm->mem, in dec_usb_memory_use_count()
191 spin_unlock_irqrestore(&ps->lock, flags); in dec_usb_memory_use_count()
200 spin_lock_irqsave(&usbm->ps->lock, flags); in usbdev_vm_open()
202 spin_unlock_irqrestore(&usbm->ps->lock, flags); in usbdev_vm_open()
220 struct usb_dev_state *ps = file->private_data; in usbdev_mmap() local
221 struct usb_hcd *hcd = bus_to_hcd(ps->dev->bus); in usbdev_mmap()
238 mem = usb_alloc_coherent(ps->dev, size, GFP_USER | __GFP_NOWARN, in usbdev_mmap()
250 usbm->ps = ps; in usbdev_mmap()
275 spin_lock_irqsave(&ps->lock, flags); in usbdev_mmap()
276 list_add_tail(&usbm->memlist, &ps->memory_list); in usbdev_mmap()
277 spin_unlock_irqrestore(&ps->lock, flags); in usbdev_mmap()
292 struct usb_dev_state *ps = file->private_data; in usbdev_read() local
293 struct usb_device *dev = ps->dev; in usbdev_read()
301 if (!connected(ps)) { in usbdev_read()
420 struct usb_dev_state *ps = as->ps; in async_newpending() local
423 spin_lock_irqsave(&ps->lock, flags); in async_newpending()
424 list_add_tail(&as->asynclist, &ps->async_pending); in async_newpending()
425 spin_unlock_irqrestore(&ps->lock, flags); in async_newpending()
430 struct usb_dev_state *ps = as->ps; in async_removepending() local
433 spin_lock_irqsave(&ps->lock, flags); in async_removepending()
435 spin_unlock_irqrestore(&ps->lock, flags); in async_removepending()
438 static struct async *async_getcompleted(struct usb_dev_state *ps) in async_getcompleted() argument
443 spin_lock_irqsave(&ps->lock, flags); in async_getcompleted()
444 if (!list_empty(&ps->async_completed)) { in async_getcompleted()
445 as = list_entry(ps->async_completed.next, struct async, in async_getcompleted()
449 spin_unlock_irqrestore(&ps->lock, flags); in async_getcompleted()
453 static struct async *async_getpending(struct usb_dev_state *ps, in async_getpending() argument
458 list_for_each_entry(as, &ps->async_pending, asynclist) in async_getpending()
563 static void cancel_bulk_urbs(struct usb_dev_state *ps, unsigned bulk_addr) in cancel_bulk_urbs() argument
564 __releases(ps->lock) in cancel_bulk_urbs()
565 __acquires(ps->lock) in cancel_bulk_urbs()
575 list_for_each_entry(as, &ps->async_pending, asynclist) { in cancel_bulk_urbs()
583 ps->disabled_bulk_eps |= (1 << bulk_addr); in cancel_bulk_urbs()
587 list_for_each_entry_reverse(as, &ps->async_pending, asynclist) { in cancel_bulk_urbs()
592 spin_unlock(&ps->lock); /* Allow completions */ in cancel_bulk_urbs()
595 spin_lock(&ps->lock); in cancel_bulk_urbs()
604 struct usb_dev_state *ps = as->ps; in async_completed() local
611 spin_lock_irqsave(&ps->lock, flags); in async_completed()
612 list_move_tail(&as->asynclist, &ps->async_completed); in async_completed()
629 cancel_bulk_urbs(ps, as->bulk_addr); in async_completed()
631 wake_up(&ps->wait); in async_completed()
632 spin_unlock_irqrestore(&ps->lock, flags); in async_completed()
641 static void destroy_async(struct usb_dev_state *ps, struct list_head *list) in destroy_async() argument
647 spin_lock_irqsave(&ps->lock, flags); in destroy_async()
655 spin_unlock_irqrestore(&ps->lock, flags); in destroy_async()
658 spin_lock_irqsave(&ps->lock, flags); in destroy_async()
660 spin_unlock_irqrestore(&ps->lock, flags); in destroy_async()
663 static void destroy_async_on_interface(struct usb_dev_state *ps, in destroy_async_on_interface() argument
670 spin_lock_irqsave(&ps->lock, flags); in destroy_async_on_interface()
671 list_for_each_safe(p, q, &ps->async_pending) in destroy_async_on_interface()
674 spin_unlock_irqrestore(&ps->lock, flags); in destroy_async_on_interface()
675 destroy_async(ps, &hitlist); in destroy_async_on_interface()
678 static void destroy_all_async(struct usb_dev_state *ps) in destroy_all_async() argument
680 destroy_async(ps, &ps->async_pending); in destroy_all_async()
697 struct usb_dev_state *ps = usb_get_intfdata(intf); in driver_disconnect() local
700 if (!ps) in driver_disconnect()
707 if (likely(ifnum < 8*sizeof(ps->ifclaimed))) in driver_disconnect()
708 clear_bit(ifnum, &ps->ifclaimed); in driver_disconnect()
716 destroy_async_on_interface(ps, ifnum); in driver_disconnect()
738 struct usb_dev_state *ps; in usbfs_notify_resume() local
742 list_for_each_entry(ps, &udev->filelist, list) { in usbfs_notify_resume()
743 WRITE_ONCE(ps->not_yet_resumed, 0); in usbfs_notify_resume()
744 wake_up_all(&ps->wait_for_resume); in usbfs_notify_resume()
758 static int claimintf(struct usb_dev_state *ps, unsigned int ifnum) in claimintf() argument
760 struct usb_device *dev = ps->dev; in claimintf()
764 if (ifnum >= 8*sizeof(ps->ifclaimed)) in claimintf()
767 if (test_bit(ifnum, &ps->ifclaimed)) in claimintf()
770 if (ps->privileges_dropped && in claimintf()
771 !test_bit(ifnum, &ps->interface_allowed_mask)) in claimintf()
783 err = usb_driver_claim_interface(&usbfs_driver, intf, ps); in claimintf()
787 set_bit(ifnum, &ps->ifclaimed); in claimintf()
791 static int releaseintf(struct usb_dev_state *ps, unsigned int ifnum) in releaseintf() argument
798 if (ifnum >= 8*sizeof(ps->ifclaimed)) in releaseintf()
800 dev = ps->dev; in releaseintf()
804 else if (test_and_clear_bit(ifnum, &ps->ifclaimed)) { in releaseintf()
817 static int checkintf(struct usb_dev_state *ps, unsigned int ifnum) in checkintf() argument
819 if (ps->dev->state != USB_STATE_CONFIGURED) in checkintf()
821 if (ifnum >= 8*sizeof(ps->ifclaimed)) in checkintf()
823 if (test_bit(ifnum, &ps->ifclaimed)) in checkintf()
826 dev_warn(&ps->dev->dev, "usbfs: process %d (%s) did not claim " in checkintf()
829 return claimintf(ps, ifnum); in checkintf()
857 static int check_ctrlrecip(struct usb_dev_state *ps, unsigned int requesttype, in check_ctrlrecip() argument
863 if (ps->dev->state != USB_STATE_UNAUTHENTICATED in check_ctrlrecip()
864 && ps->dev->state != USB_STATE_ADDRESS in check_ctrlrecip()
865 && ps->dev->state != USB_STATE_CONFIGURED) in check_ctrlrecip()
876 alt_setting = usb_find_alt_setting(ps->dev->actconfig, in check_ctrlrecip()
888 ret = findintfep(ps->dev, index); in check_ctrlrecip()
898 ret = findintfep(ps->dev, index ^ 0x80); in check_ctrlrecip()
900 dev_info(&ps->dev->dev, in check_ctrlrecip()
906 ret = checkintf(ps, ret); in check_ctrlrecip()
910 ret = checkintf(ps, index); in check_ctrlrecip()
925 static int parse_usbdevfs_streams(struct usb_dev_state *ps, in parse_usbdevfs_streams() argument
958 eps[i] = ep_to_host_endpoint(ps->dev, ep); in parse_usbdevfs_streams()
965 ifnum = findintfep(ps->dev, ep); in parse_usbdevfs_streams()
972 ret = checkintf(ps, ifnum); in parse_usbdevfs_streams()
975 intf = usb_ifnum_to_if(ps->dev, ifnum); in parse_usbdevfs_streams()
1014 struct usb_dev_state *ps; in usbdev_open() local
1018 ps = kzalloc(sizeof(struct usb_dev_state), GFP_KERNEL); in usbdev_open()
1019 if (!ps) in usbdev_open()
1038 ps->dev = dev; in usbdev_open()
1039 ps->file = file; in usbdev_open()
1040 ps->interface_allowed_mask = 0xFFFFFFFF; /* 32 bits */ in usbdev_open()
1041 spin_lock_init(&ps->lock); in usbdev_open()
1042 INIT_LIST_HEAD(&ps->list); in usbdev_open()
1043 INIT_LIST_HEAD(&ps->async_pending); in usbdev_open()
1044 INIT_LIST_HEAD(&ps->async_completed); in usbdev_open()
1045 INIT_LIST_HEAD(&ps->memory_list); in usbdev_open()
1046 init_waitqueue_head(&ps->wait); in usbdev_open()
1047 init_waitqueue_head(&ps->wait_for_resume); in usbdev_open()
1048 ps->disc_pid = get_pid(task_pid(current)); in usbdev_open()
1049 ps->cred = get_current_cred(); in usbdev_open()
1053 list_add_tail(&ps->list, &dev->filelist); in usbdev_open()
1054 file->private_data = ps; in usbdev_open()
1064 kfree(ps); in usbdev_open()
1070 struct usb_dev_state *ps = file->private_data; in usbdev_release() local
1071 struct usb_device *dev = ps->dev; in usbdev_release()
1076 usb_hub_release_all_ports(dev, ps); in usbdev_release()
1080 list_del_init(&ps->list); in usbdev_release()
1083 for (ifnum = 0; ps->ifclaimed && ifnum < 8*sizeof(ps->ifclaimed); in usbdev_release()
1085 if (test_bit(ifnum, &ps->ifclaimed)) in usbdev_release()
1086 releaseintf(ps, ifnum); in usbdev_release()
1088 destroy_all_async(ps); in usbdev_release()
1089 if (!ps->suspend_allowed) in usbdev_release()
1093 put_pid(ps->disc_pid); in usbdev_release()
1094 put_cred(ps->cred); in usbdev_release()
1096 as = async_getcompleted(ps); in usbdev_release()
1099 as = async_getcompleted(ps); in usbdev_release()
1102 kfree(ps); in usbdev_release()
1145 static int do_proc_control(struct usb_dev_state *ps, in do_proc_control() argument
1148 struct usb_device *dev = ps->dev; in do_proc_control()
1156 ret = check_ctrlrecip(ps, ctrl->bRequestType, ctrl->bRequest, in do_proc_control()
1246 static int proc_control(struct usb_dev_state *ps, void __user *arg) in proc_control() argument
1252 return do_proc_control(ps, &ctrl); in proc_control()
1255 static int do_proc_bulk(struct usb_dev_state *ps, in do_proc_bulk() argument
1258 struct usb_device *dev = ps->dev; in do_proc_bulk()
1265 ret = findintfep(ps->dev, bulk->ep); in do_proc_bulk()
1268 ret = checkintf(ps, ret); in do_proc_bulk()
1345 static int proc_bulk(struct usb_dev_state *ps, void __user *arg) in proc_bulk() argument
1351 return do_proc_bulk(ps, &bulk); in proc_bulk()
1368 static int proc_resetep(struct usb_dev_state *ps, void __user *arg) in proc_resetep() argument
1375 ret = findintfep(ps->dev, ep); in proc_resetep()
1378 ret = checkintf(ps, ret); in proc_resetep()
1381 check_reset_of_active_ep(ps->dev, ep, "RESETEP"); in proc_resetep()
1382 usb_reset_endpoint(ps->dev, ep); in proc_resetep()
1386 static int proc_clearhalt(struct usb_dev_state *ps, void __user *arg) in proc_clearhalt() argument
1394 ret = findintfep(ps->dev, ep); in proc_clearhalt()
1397 ret = checkintf(ps, ret); in proc_clearhalt()
1400 check_reset_of_active_ep(ps->dev, ep, "CLEAR_HALT"); in proc_clearhalt()
1402 pipe = usb_rcvbulkpipe(ps->dev, ep & 0x7f); in proc_clearhalt()
1404 pipe = usb_sndbulkpipe(ps->dev, ep & 0x7f); in proc_clearhalt()
1406 return usb_clear_halt(ps->dev, pipe); in proc_clearhalt()
1409 static int proc_getdriver(struct usb_dev_state *ps, void __user *arg) in proc_getdriver() argument
1417 intf = usb_ifnum_to_if(ps->dev, gd.interface); in proc_getdriver()
1428 static int proc_connectinfo(struct usb_dev_state *ps, void __user *arg) in proc_connectinfo() argument
1433 ci.devnum = ps->dev->devnum; in proc_connectinfo()
1434 ci.slow = ps->dev->speed == USB_SPEED_LOW; in proc_connectinfo()
1441 static int proc_conninfo_ex(struct usb_dev_state *ps, in proc_conninfo_ex() argument
1445 struct usb_device *udev = ps->dev; in proc_conninfo_ex()
1474 static int proc_resetdevice(struct usb_dev_state *ps) in proc_resetdevice() argument
1476 struct usb_host_config *actconfig = ps->dev->actconfig; in proc_resetdevice()
1484 if (ps->privileges_dropped && actconfig) { in proc_resetdevice()
1489 !test_bit(number, &ps->ifclaimed)) { in proc_resetdevice()
1490 dev_warn(&ps->dev->dev, in proc_resetdevice()
1498 return usb_reset_device(ps->dev); in proc_resetdevice()
1501 static int proc_setintf(struct usb_dev_state *ps, void __user *arg) in proc_setintf() argument
1508 ret = checkintf(ps, setintf.interface); in proc_setintf()
1512 destroy_async_on_interface(ps, setintf.interface); in proc_setintf()
1514 return usb_set_interface(ps->dev, setintf.interface, in proc_setintf()
1518 static int proc_setconfig(struct usb_dev_state *ps, void __user *arg) in proc_setconfig() argument
1527 actconfig = ps->dev->actconfig; in proc_setconfig()
1538 dev_warn(&ps->dev->dev, in proc_setconfig()
1558 status = usb_reset_configuration(ps->dev); in proc_setconfig()
1560 status = usb_set_configuration(ps->dev, u); in proc_setconfig()
1567 find_memory_area(struct usb_dev_state *ps, const struct usbdevfs_urb *uurb) in find_memory_area() argument
1573 spin_lock_irqsave(&ps->lock, flags); in find_memory_area()
1574 list_for_each_entry(iter, &ps->memory_list, memlist) { in find_memory_area()
1587 spin_unlock_irqrestore(&ps->lock, flags); in find_memory_area()
1591 static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb, in proc_do_submiturb() argument
1625 ifnum = findintfep(ps->dev, uurb->endpoint); in proc_do_submiturb()
1628 ret = checkintf(ps, ifnum); in proc_do_submiturb()
1632 ep = ep_to_host_endpoint(ps->dev, uurb->endpoint); in proc_do_submiturb()
1656 ret = check_ctrlrecip(ps, dr->bRequestType, dr->bRequest, in proc_do_submiturb()
1671 snoop(&ps->dev->dev, "control urb: bRequestType=%02x " in proc_do_submiturb()
1696 if (num_sgs == 1 || num_sgs > ps->dev->bus->sg_tablesize) in proc_do_submiturb()
1758 as->usbm = find_memory_area(ps, uurb); in proc_do_submiturb()
1841 as->urb->dev = ps->dev; in proc_do_submiturb()
1843 __create_pipe(ps->dev, uurb->endpoint & 0xf) | in proc_do_submiturb()
1862 dev_warn(&ps->dev->dev, "Requested nonsensical USBDEVFS_URB_SHORT_NOT_OK.\n"); in proc_do_submiturb()
1864 dev_warn(&ps->dev->dev, "Requested nonsensical USBDEVFS_URB_ZERO_PACKET.\n"); in proc_do_submiturb()
1875 ps->dev->speed == USB_SPEED_HIGH || in proc_do_submiturb()
1876 ps->dev->speed >= USB_SPEED_SUPER) in proc_do_submiturb()
1892 as->ps = ps; in proc_do_submiturb()
1907 snoop_urb(ps->dev, as->userurb, as->urb->pipe, in proc_do_submiturb()
1916 spin_lock_irq(&ps->lock); in proc_do_submiturb()
1932 ps->disabled_bulk_eps &= ~(1 << as->bulk_addr); in proc_do_submiturb()
1937 if (ps->disabled_bulk_eps & (1 << as->bulk_addr)) in proc_do_submiturb()
1941 spin_unlock_irq(&ps->lock); in proc_do_submiturb()
1947 dev_printk(KERN_DEBUG, &ps->dev->dev, in proc_do_submiturb()
1949 snoop_urb(ps->dev, as->userurb, as->urb->pipe, in proc_do_submiturb()
1964 static int proc_submiturb(struct usb_dev_state *ps, void __user *arg) in proc_submiturb() argument
1975 return proc_do_submiturb(ps, &uurb, in proc_submiturb()
1980 static int proc_unlinkurb(struct usb_dev_state *ps, void __user *arg) in proc_unlinkurb() argument
1986 spin_lock_irqsave(&ps->lock, flags); in proc_unlinkurb()
1987 as = async_getpending(ps, arg); in proc_unlinkurb()
1989 spin_unlock_irqrestore(&ps->lock, flags); in proc_unlinkurb()
1995 spin_unlock_irqrestore(&ps->lock, flags); in proc_unlinkurb()
2053 static struct async *reap_as(struct usb_dev_state *ps) in reap_as() argument
2057 struct usb_device *dev = ps->dev; in reap_as()
2059 add_wait_queue(&ps->wait, &wait); in reap_as()
2062 as = async_getcompleted(ps); in reap_as()
2063 if (as || !connected(ps)) in reap_as()
2071 remove_wait_queue(&ps->wait, &wait); in reap_as()
2076 static int proc_reapurb(struct usb_dev_state *ps, void __user *arg) in proc_reapurb() argument
2078 struct async *as = reap_as(ps); in proc_reapurb()
2083 snoop(&ps->dev->dev, "reap %px\n", as->userurb); in proc_reapurb()
2093 static int proc_reapurbnonblock(struct usb_dev_state *ps, void __user *arg) in proc_reapurbnonblock() argument
2098 as = async_getcompleted(ps); in proc_reapurbnonblock()
2100 snoop(&ps->dev->dev, "reap %px\n", as->userurb); in proc_reapurbnonblock()
2104 retval = (connected(ps) ? -EAGAIN : -ENODEV); in proc_reapurbnonblock()
2110 static int proc_control_compat(struct usb_dev_state *ps, in proc_control_compat() argument
2120 return do_proc_control(ps, &ctrl); in proc_control_compat()
2123 static int proc_bulk_compat(struct usb_dev_state *ps, in proc_bulk_compat() argument
2135 return do_proc_bulk(ps, &bulk); in proc_bulk_compat()
2138 static int proc_disconnectsignal_compat(struct usb_dev_state *ps, void __user *arg) in proc_disconnectsignal_compat() argument
2144 ps->discsignr = ds.signr; in proc_disconnectsignal_compat()
2145 ps->disccontext.sival_int = ds.context; in proc_disconnectsignal_compat()
2170 static int proc_submiturb_compat(struct usb_dev_state *ps, void __user *arg) in proc_submiturb_compat() argument
2181 return proc_do_submiturb(ps, &uurb, in proc_submiturb_compat()
2221 static int proc_reapurb_compat(struct usb_dev_state *ps, void __user *arg) in proc_reapurb_compat() argument
2223 struct async *as = reap_as(ps); in proc_reapurb_compat()
2228 snoop(&ps->dev->dev, "reap %px\n", as->userurb); in proc_reapurb_compat()
2238 static int proc_reapurbnonblock_compat(struct usb_dev_state *ps, void __user *arg) in proc_reapurbnonblock_compat() argument
2243 as = async_getcompleted(ps); in proc_reapurbnonblock_compat()
2245 snoop(&ps->dev->dev, "reap %px\n", as->userurb); in proc_reapurbnonblock_compat()
2249 retval = (connected(ps) ? -EAGAIN : -ENODEV); in proc_reapurbnonblock_compat()
2257 static int proc_disconnectsignal(struct usb_dev_state *ps, void __user *arg) in proc_disconnectsignal() argument
2263 ps->discsignr = ds.signr; in proc_disconnectsignal()
2264 ps->disccontext.sival_ptr = ds.context; in proc_disconnectsignal()
2268 static int proc_claiminterface(struct usb_dev_state *ps, void __user *arg) in proc_claiminterface() argument
2274 return claimintf(ps, ifnum); in proc_claiminterface()
2277 static int proc_releaseinterface(struct usb_dev_state *ps, void __user *arg) in proc_releaseinterface() argument
2284 ret = releaseintf(ps, ifnum); in proc_releaseinterface()
2287 destroy_async_on_interface(ps, ifnum); in proc_releaseinterface()
2291 static int proc_ioctl(struct usb_dev_state *ps, struct usbdevfs_ioctl *ctl) in proc_ioctl() argument
2299 if (ps->privileges_dropped) in proc_ioctl()
2302 if (!connected(ps)) in proc_ioctl()
2321 if (ps->dev->state != USB_STATE_CONFIGURED) in proc_ioctl()
2323 else if (!(intf = usb_ifnum_to_if(ps->dev, ctl->ifno))) in proc_ioctl()
2369 static int proc_ioctl_default(struct usb_dev_state *ps, void __user *arg) in proc_ioctl_default() argument
2375 return proc_ioctl(ps, &ctrl); in proc_ioctl_default()
2379 static int proc_ioctl_compat(struct usb_dev_state *ps, compat_uptr_t arg) in proc_ioctl_compat() argument
2389 return proc_ioctl(ps, &ctrl); in proc_ioctl_compat()
2393 static int proc_claim_port(struct usb_dev_state *ps, void __user *arg) in proc_claim_port() argument
2400 rc = usb_hub_claim_port(ps->dev, portnum, ps); in proc_claim_port()
2402 snoop(&ps->dev->dev, "port %d claimed by process %d: %s\n", in proc_claim_port()
2407 static int proc_release_port(struct usb_dev_state *ps, void __user *arg) in proc_release_port() argument
2413 return usb_hub_release_port(ps->dev, portnum, ps); in proc_release_port()
2416 static int proc_get_capabilities(struct usb_dev_state *ps, void __user *arg) in proc_get_capabilities() argument
2424 if (!ps->dev->bus->no_stop_on_short) in proc_get_capabilities()
2426 if (ps->dev->bus->sg_tablesize) in proc_get_capabilities()
2435 static int proc_disconnect_claim(struct usb_dev_state *ps, void __user *arg) in proc_disconnect_claim() argument
2443 intf = usb_ifnum_to_if(ps->dev, dc.interface); in proc_disconnect_claim()
2450 if (ps->privileges_dropped) in proc_disconnect_claim()
2467 return claimintf(ps, dc.interface); in proc_disconnect_claim()
2470 static int proc_alloc_streams(struct usb_dev_state *ps, void __user *arg) in proc_alloc_streams() argument
2477 r = parse_usbdevfs_streams(ps, arg, &num_streams, &num_eps, in proc_alloc_streams()
2482 destroy_async_on_interface(ps, in proc_alloc_streams()
2490 static int proc_free_streams(struct usb_dev_state *ps, void __user *arg) in proc_free_streams() argument
2497 r = parse_usbdevfs_streams(ps, arg, NULL, &num_eps, &eps, &intf); in proc_free_streams()
2501 destroy_async_on_interface(ps, in proc_free_streams()
2509 static int proc_drop_privileges(struct usb_dev_state *ps, void __user *arg) in proc_drop_privileges() argument
2520 ps->interface_allowed_mask &= data; in proc_drop_privileges()
2521 ps->privileges_dropped = true; in proc_drop_privileges()
2526 static int proc_forbid_suspend(struct usb_dev_state *ps) in proc_forbid_suspend() argument
2530 if (ps->suspend_allowed) { in proc_forbid_suspend()
2531 ret = usb_autoresume_device(ps->dev); in proc_forbid_suspend()
2533 ps->suspend_allowed = false; in proc_forbid_suspend()
2540 static int proc_allow_suspend(struct usb_dev_state *ps) in proc_allow_suspend() argument
2542 if (!connected(ps)) in proc_allow_suspend()
2545 WRITE_ONCE(ps->not_yet_resumed, 1); in proc_allow_suspend()
2546 if (!ps->suspend_allowed) { in proc_allow_suspend()
2547 usb_autosuspend_device(ps->dev); in proc_allow_suspend()
2548 ps->suspend_allowed = true; in proc_allow_suspend()
2553 static int proc_wait_for_resume(struct usb_dev_state *ps) in proc_wait_for_resume() argument
2557 usb_unlock_device(ps->dev); in proc_wait_for_resume()
2558 ret = wait_event_interruptible(ps->wait_for_resume, in proc_wait_for_resume()
2559 READ_ONCE(ps->not_yet_resumed) == 0); in proc_wait_for_resume()
2560 usb_lock_device(ps->dev); in proc_wait_for_resume()
2564 return proc_forbid_suspend(ps); in proc_wait_for_resume()
2575 struct usb_dev_state *ps = file->private_data; in usbdev_do_ioctl() local
2577 struct usb_device *dev = ps->dev; in usbdev_do_ioctl()
2589 ret = proc_reapurb(ps, p); in usbdev_do_ioctl()
2594 ret = proc_reapurbnonblock(ps, p); in usbdev_do_ioctl()
2600 ret = proc_reapurb_compat(ps, p); in usbdev_do_ioctl()
2605 ret = proc_reapurbnonblock_compat(ps, p); in usbdev_do_ioctl()
2610 if (!connected(ps)) { in usbdev_do_ioctl()
2618 ret = proc_control(ps, p); in usbdev_do_ioctl()
2625 ret = proc_bulk(ps, p); in usbdev_do_ioctl()
2632 ret = proc_resetep(ps, p); in usbdev_do_ioctl()
2639 ret = proc_resetdevice(ps); in usbdev_do_ioctl()
2644 ret = proc_clearhalt(ps, p); in usbdev_do_ioctl()
2651 ret = proc_getdriver(ps, p); in usbdev_do_ioctl()
2656 ret = proc_connectinfo(ps, p); in usbdev_do_ioctl()
2661 ret = proc_setintf(ps, p); in usbdev_do_ioctl()
2666 ret = proc_setconfig(ps, p); in usbdev_do_ioctl()
2671 ret = proc_submiturb(ps, p); in usbdev_do_ioctl()
2679 ret = proc_control_compat(ps, p); in usbdev_do_ioctl()
2686 ret = proc_bulk_compat(ps, p); in usbdev_do_ioctl()
2693 ret = proc_disconnectsignal_compat(ps, p); in usbdev_do_ioctl()
2698 ret = proc_submiturb_compat(ps, p); in usbdev_do_ioctl()
2705 ret = proc_ioctl_compat(ps, ptr_to_compat(p)); in usbdev_do_ioctl()
2711 ret = proc_unlinkurb(ps, p); in usbdev_do_ioctl()
2716 ret = proc_disconnectsignal(ps, p); in usbdev_do_ioctl()
2721 ret = proc_claiminterface(ps, p); in usbdev_do_ioctl()
2726 ret = proc_releaseinterface(ps, p); in usbdev_do_ioctl()
2731 ret = proc_ioctl_default(ps, p); in usbdev_do_ioctl()
2736 ret = proc_claim_port(ps, p); in usbdev_do_ioctl()
2741 ret = proc_release_port(ps, p); in usbdev_do_ioctl()
2744 ret = proc_get_capabilities(ps, p); in usbdev_do_ioctl()
2747 ret = proc_disconnect_claim(ps, p); in usbdev_do_ioctl()
2750 ret = proc_alloc_streams(ps, p); in usbdev_do_ioctl()
2753 ret = proc_free_streams(ps, p); in usbdev_do_ioctl()
2756 ret = proc_drop_privileges(ps, p); in usbdev_do_ioctl()
2759 ret = ps->dev->speed; in usbdev_do_ioctl()
2762 ret = proc_forbid_suspend(ps); in usbdev_do_ioctl()
2765 ret = proc_allow_suspend(ps); in usbdev_do_ioctl()
2768 ret = proc_wait_for_resume(ps); in usbdev_do_ioctl()
2775 ret = proc_conninfo_ex(ps, p, _IOC_SIZE(cmd)); in usbdev_do_ioctl()
2800 struct usb_dev_state *ps = file->private_data; in usbdev_poll() local
2803 poll_wait(file, &ps->wait, wait); in usbdev_poll()
2804 if (file->f_mode & FMODE_WRITE && !list_empty(&ps->async_completed)) in usbdev_poll()
2806 if (!connected(ps)) in usbdev_poll()
2808 if (list_empty(&ps->list)) in usbdev_poll()
2827 struct usb_dev_state *ps; in usbdev_remove() local
2832 ps = list_entry(udev->filelist.next, struct usb_dev_state, list); in usbdev_remove()
2833 destroy_all_async(ps); in usbdev_remove()
2834 wake_up_all(&ps->wait); in usbdev_remove()
2835 WRITE_ONCE(ps->not_yet_resumed, 0); in usbdev_remove()
2836 wake_up_all(&ps->wait_for_resume); in usbdev_remove()
2837 list_del_init(&ps->list); in usbdev_remove()
2838 if (ps->discsignr) in usbdev_remove()
2839 kill_pid_usb_asyncio(ps->discsignr, EPIPE, ps->disccontext, in usbdev_remove()
2840 ps->disc_pid, ps->cred); in usbdev_remove()