Lines Matching +full:fn +full:- +full:keymap
1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (c) 1999-2002 Vojtech Pavlik
26 #include "input-compat.h"
27 #include "input-poller.h"
70 if (value > old_val - fuzz / 2 && value < old_val + fuzz / 2) in input_defuzz_abs_event()
73 if (value > old_val - fuzz && value < old_val + fuzz) in input_defuzz_abs_event()
76 if (value > old_val - fuzz * 2 && value < old_val + fuzz * 2) in input_defuzz_abs_event()
85 if (test_bit(EV_REP, dev->evbit) && in input_start_autorepeat()
86 dev->rep[REP_PERIOD] && dev->rep[REP_DELAY] && in input_start_autorepeat()
87 dev->timer.function) { in input_start_autorepeat()
88 dev->repeat_key = code; in input_start_autorepeat()
89 mod_timer(&dev->timer, in input_start_autorepeat()
90 jiffies + msecs_to_jiffies(dev->rep[REP_DELAY])); in input_start_autorepeat()
96 del_timer(&dev->timer); in input_stop_autorepeat()
102 * dev->event_lock held and interrupts disabled.
107 struct input_handler *handler = handle->handler; in input_to_handler()
111 if (handler->filter) { in input_to_handler()
113 if (handler->filter(handle, v->type, v->code, v->value)) in input_to_handler()
119 count = end - vals; in input_to_handler()
125 if (handler->events) in input_to_handler()
126 handler->events(handle, vals, count); in input_to_handler()
127 else if (handler->event) in input_to_handler()
129 handler->event(handle, v->type, v->code, v->value); in input_to_handler()
137 * dev->event_lock held and interrupts disabled.
150 handle = rcu_dereference(dev->grab); in input_pass_values()
154 list_for_each_entry_rcu(handle, &dev->h_list, d_node) in input_pass_values()
155 if (handle->open) { in input_pass_values()
165 if (test_bit(EV_REP, dev->evbit) && test_bit(EV_KEY, dev->evbit)) { in input_pass_values()
167 if (v->type == EV_KEY && v->value != 2) { in input_pass_values()
168 if (v->value) in input_pass_values()
169 input_start_autorepeat(dev, v->code); in input_pass_values()
187 * dev->event_lock here to avoid racing with input_event
195 spin_lock_irqsave(&dev->event_lock, flags); in input_repeat_key()
197 if (test_bit(dev->repeat_key, dev->key) && in input_repeat_key()
198 is_event_supported(dev->repeat_key, dev->keybit, KEY_MAX)) { in input_repeat_key()
200 { EV_KEY, dev->repeat_key, 2 }, in input_repeat_key()
207 if (dev->rep[REP_PERIOD]) in input_repeat_key()
208 mod_timer(&dev->timer, jiffies + in input_repeat_key()
209 msecs_to_jiffies(dev->rep[REP_PERIOD])); in input_repeat_key()
212 spin_unlock_irqrestore(&dev->event_lock, flags); in input_repeat_key()
225 struct input_mt *mt = dev->mt; in input_handle_abs_event()
234 if (mt && *pval >= 0 && *pval < mt->num_slots) in input_handle_abs_event()
235 mt->slot = *pval; in input_handle_abs_event()
243 pold = &dev->absinfo[code].value; in input_handle_abs_event()
245 pold = &mt->slots[mt->slot].abs[code - ABS_MT_FIRST]; in input_handle_abs_event()
248 * Bypass filtering for multi-touch events when in input_handle_abs_event()
256 dev->absinfo[code].fuzz); in input_handle_abs_event()
264 if (is_mt_event && mt && mt->slot != input_abs_get_val(dev, ABS_MT_SLOT)) { in input_handle_abs_event()
265 input_abs_set_val(dev, ABS_MT_SLOT, mt->slot); in input_handle_abs_event()
296 if (is_event_supported(code, dev->keybit, KEY_MAX)) { in input_get_disposition()
298 /* auto-repeat bypasses state updates */ in input_get_disposition()
304 if (!!test_bit(code, dev->key) != !!value) { in input_get_disposition()
306 __change_bit(code, dev->key); in input_get_disposition()
313 if (is_event_supported(code, dev->swbit, SW_MAX) && in input_get_disposition()
314 !!test_bit(code, dev->sw) != !!value) { in input_get_disposition()
316 __change_bit(code, dev->sw); in input_get_disposition()
322 if (is_event_supported(code, dev->absbit, ABS_MAX)) in input_get_disposition()
328 if (is_event_supported(code, dev->relbit, REL_MAX) && value) in input_get_disposition()
334 if (is_event_supported(code, dev->mscbit, MSC_MAX)) in input_get_disposition()
340 if (is_event_supported(code, dev->ledbit, LED_MAX) && in input_get_disposition()
341 !!test_bit(code, dev->led) != !!value) { in input_get_disposition()
343 __change_bit(code, dev->led); in input_get_disposition()
349 if (is_event_supported(code, dev->sndbit, SND_MAX)) { in input_get_disposition()
351 if (!!test_bit(code, dev->snd) != !!value) in input_get_disposition()
352 __change_bit(code, dev->snd); in input_get_disposition()
358 if (code <= REP_MAX && value >= 0 && dev->rep[code] != value) { in input_get_disposition()
359 dev->rep[code] = value; in input_get_disposition()
386 if ((disposition & INPUT_PASS_TO_DEVICE) && dev->event) in input_handle_event()
387 dev->event(dev, type, code, value); in input_handle_event()
389 if (!dev->vals) in input_handle_event()
396 v = &dev->vals[dev->num_vals++]; in input_handle_event()
397 v->type = EV_ABS; in input_handle_event()
398 v->code = ABS_MT_SLOT; in input_handle_event()
399 v->value = dev->mt->slot; in input_handle_event()
402 v = &dev->vals[dev->num_vals++]; in input_handle_event()
403 v->type = type; in input_handle_event()
404 v->code = code; in input_handle_event()
405 v->value = value; in input_handle_event()
409 if (dev->num_vals >= 2) in input_handle_event()
410 input_pass_values(dev, dev->vals, dev->num_vals); in input_handle_event()
411 dev->num_vals = 0; in input_handle_event()
418 dev->timestamp[INPUT_CLK_MONO] = ktime_set(0, 0); in input_handle_event()
419 } else if (dev->num_vals >= dev->max_vals - 2) { in input_handle_event()
420 dev->vals[dev->num_vals++] = input_value_sync; in input_handle_event()
421 input_pass_values(dev, dev->vals, dev->num_vals); in input_handle_event()
422 dev->num_vals = 0; in input_handle_event()
428 * input_event() - report new input event
449 if (is_event_supported(type, dev->evbit, EV_MAX)) { in input_event()
451 spin_lock_irqsave(&dev->event_lock, flags); in input_event()
453 spin_unlock_irqrestore(&dev->event_lock, flags); in input_event()
459 * input_inject_event() - send input event from input handler
472 struct input_dev *dev = handle->dev; in input_inject_event()
476 if (is_event_supported(type, dev->evbit, EV_MAX)) { in input_inject_event()
477 spin_lock_irqsave(&dev->event_lock, flags); in input_inject_event()
480 grab = rcu_dereference(dev->grab); in input_inject_event()
485 spin_unlock_irqrestore(&dev->event_lock, flags); in input_inject_event()
491 * input_alloc_absinfo - allocates array of input_absinfo structs
499 if (dev->absinfo) in input_alloc_absinfo()
502 dev->absinfo = kcalloc(ABS_CNT, sizeof(*dev->absinfo), GFP_KERNEL); in input_alloc_absinfo()
503 if (!dev->absinfo) { in input_alloc_absinfo()
504 dev_err(dev->dev.parent ?: &dev->dev, in input_alloc_absinfo()
521 if (!dev->absinfo) in input_set_abs_params()
524 absinfo = &dev->absinfo[axis]; in input_set_abs_params()
525 absinfo->minimum = min; in input_set_abs_params()
526 absinfo->maximum = max; in input_set_abs_params()
527 absinfo->fuzz = fuzz; in input_set_abs_params()
528 absinfo->flat = flat; in input_set_abs_params()
530 __set_bit(EV_ABS, dev->evbit); in input_set_abs_params()
531 __set_bit(axis, dev->absbit); in input_set_abs_params()
537 * input_grab_device - grabs device for exclusive use
546 struct input_dev *dev = handle->dev; in input_grab_device()
549 retval = mutex_lock_interruptible(&dev->mutex); in input_grab_device()
553 if (dev->grab) { in input_grab_device()
554 retval = -EBUSY; in input_grab_device()
558 rcu_assign_pointer(dev->grab, handle); in input_grab_device()
561 mutex_unlock(&dev->mutex); in input_grab_device()
568 struct input_dev *dev = handle->dev; in __input_release_device()
571 grabber = rcu_dereference_protected(dev->grab, in __input_release_device()
572 lockdep_is_held(&dev->mutex)); in __input_release_device()
574 rcu_assign_pointer(dev->grab, NULL); in __input_release_device()
578 list_for_each_entry(handle, &dev->h_list, d_node) in __input_release_device()
579 if (handle->open && handle->handler->start) in __input_release_device()
580 handle->handler->start(handle); in __input_release_device()
585 * input_release_device - release previously grabbed device
595 struct input_dev *dev = handle->dev; in input_release_device()
597 mutex_lock(&dev->mutex); in input_release_device()
599 mutex_unlock(&dev->mutex); in input_release_device()
604 * input_open_device - open input device
612 struct input_dev *dev = handle->dev; in input_open_device()
615 retval = mutex_lock_interruptible(&dev->mutex); in input_open_device()
619 if (dev->going_away) { in input_open_device()
620 retval = -ENODEV; in input_open_device()
624 handle->open++; in input_open_device()
626 if (dev->users++) { in input_open_device()
634 if (dev->open) { in input_open_device()
635 retval = dev->open(dev); in input_open_device()
637 dev->users--; in input_open_device()
638 handle->open--; in input_open_device()
648 if (dev->poller) in input_open_device()
649 input_dev_poller_start(dev->poller); in input_open_device()
652 mutex_unlock(&dev->mutex); in input_open_device()
659 struct input_dev *dev = handle->dev; in input_flush_device()
662 retval = mutex_lock_interruptible(&dev->mutex); in input_flush_device()
666 if (dev->flush) in input_flush_device()
667 retval = dev->flush(dev, file); in input_flush_device()
669 mutex_unlock(&dev->mutex); in input_flush_device()
675 * input_close_device - close input device
683 struct input_dev *dev = handle->dev; in input_close_device()
685 mutex_lock(&dev->mutex); in input_close_device()
689 if (!--dev->users) { in input_close_device()
690 if (dev->poller) in input_close_device()
691 input_dev_poller_stop(dev->poller); in input_close_device()
693 if (dev->close) in input_close_device()
694 dev->close(dev); in input_close_device()
697 if (!--handle->open) { in input_close_device()
706 mutex_unlock(&dev->mutex); in input_close_device()
712 * The function must be called with dev->event_lock held.
719 if (is_event_supported(EV_KEY, dev->evbit, EV_MAX)) { in input_dev_release_keys()
720 for_each_set_bit(code, dev->key, KEY_CNT) { in input_dev_release_keys()
728 memset(dev->key, 0, sizeof(dev->key)); in input_dev_release_keys()
740 * Mark device as going away. Note that we take dev->mutex here in input_disconnect_device()
741 * not to protect access to dev->going_away but rather to ensure in input_disconnect_device()
744 mutex_lock(&dev->mutex); in input_disconnect_device()
745 dev->going_away = true; in input_disconnect_device()
746 mutex_unlock(&dev->mutex); in input_disconnect_device()
748 spin_lock_irq(&dev->event_lock); in input_disconnect_device()
758 list_for_each_entry(handle, &dev->h_list, d_node) in input_disconnect_device()
759 handle->open = 0; in input_disconnect_device()
761 spin_unlock_irq(&dev->event_lock); in input_disconnect_device()
765 * input_scancode_to_scalar() - converts scancode in &struct input_keymap_entry
766 * @ke: keymap entry containing scancode to be converted.
771 * into scalar form understood by legacy keymap handling methods. These
777 switch (ke->len) { in input_scancode_to_scalar()
779 *scancode = *((u8 *)ke->scancode); in input_scancode_to_scalar()
783 *scancode = *((u16 *)ke->scancode); in input_scancode_to_scalar()
787 *scancode = *((u32 *)ke->scancode); in input_scancode_to_scalar()
791 return -EINVAL; in input_scancode_to_scalar()
806 switch (dev->keycodesize) { in input_fetch_keycode()
808 return ((u8 *)dev->keycode)[index]; in input_fetch_keycode()
811 return ((u16 *)dev->keycode)[index]; in input_fetch_keycode()
814 return ((u32 *)dev->keycode)[index]; in input_fetch_keycode()
824 if (!dev->keycodesize) in input_default_getkeycode()
825 return -EINVAL; in input_default_getkeycode()
827 if (ke->flags & INPUT_KEYMAP_BY_INDEX) in input_default_getkeycode()
828 index = ke->index; in input_default_getkeycode()
835 if (index >= dev->keycodemax) in input_default_getkeycode()
836 return -EINVAL; in input_default_getkeycode()
838 ke->keycode = input_fetch_keycode(dev, index); in input_default_getkeycode()
839 ke->index = index; in input_default_getkeycode()
840 ke->len = sizeof(index); in input_default_getkeycode()
841 memcpy(ke->scancode, &index, sizeof(index)); in input_default_getkeycode()
854 if (!dev->keycodesize) in input_default_setkeycode()
855 return -EINVAL; in input_default_setkeycode()
857 if (ke->flags & INPUT_KEYMAP_BY_INDEX) { in input_default_setkeycode()
858 index = ke->index; in input_default_setkeycode()
865 if (index >= dev->keycodemax) in input_default_setkeycode()
866 return -EINVAL; in input_default_setkeycode()
868 if (dev->keycodesize < sizeof(ke->keycode) && in input_default_setkeycode()
869 (ke->keycode >> (dev->keycodesize * 8))) in input_default_setkeycode()
870 return -EINVAL; in input_default_setkeycode()
872 switch (dev->keycodesize) { in input_default_setkeycode()
874 u8 *k = (u8 *)dev->keycode; in input_default_setkeycode()
876 k[index] = ke->keycode; in input_default_setkeycode()
880 u16 *k = (u16 *)dev->keycode; in input_default_setkeycode()
882 k[index] = ke->keycode; in input_default_setkeycode()
886 u32 *k = (u32 *)dev->keycode; in input_default_setkeycode()
888 k[index] = ke->keycode; in input_default_setkeycode()
894 __clear_bit(*old_keycode, dev->keybit); in input_default_setkeycode()
895 for (i = 0; i < dev->keycodemax; i++) { in input_default_setkeycode()
897 __set_bit(*old_keycode, dev->keybit); in input_default_setkeycode()
904 __set_bit(ke->keycode, dev->keybit); in input_default_setkeycode()
909 * input_get_keycode - retrieve keycode currently mapped to a given scancode
910 * @dev: input device which keymap is being queried
911 * @ke: keymap entry
914 * keymap. Presently evdev handlers use it.
921 spin_lock_irqsave(&dev->event_lock, flags); in input_get_keycode()
922 retval = dev->getkeycode(dev, ke); in input_get_keycode()
923 spin_unlock_irqrestore(&dev->event_lock, flags); in input_get_keycode()
930 * input_set_keycode - attribute a keycode to a given scancode
931 * @dev: input device which keymap is being updated
932 * @ke: new keymap entry
935 * keymap. Presently keyboard and evdev handlers use it.
944 if (ke->keycode > KEY_MAX) in input_set_keycode()
945 return -EINVAL; in input_set_keycode()
947 spin_lock_irqsave(&dev->event_lock, flags); in input_set_keycode()
949 retval = dev->setkeycode(dev, ke, &old_keycode); in input_set_keycode()
954 __clear_bit(KEY_RESERVED, dev->keybit); in input_set_keycode()
958 * in the keymap anymore in input_set_keycode()
961 dev_warn(dev->dev.parent ?: &dev->dev, in input_set_keycode()
964 } else if (test_bit(EV_KEY, dev->evbit) && in input_set_keycode()
965 !is_event_supported(old_keycode, dev->keybit, KEY_MAX) && in input_set_keycode()
966 __test_and_clear_bit(old_keycode, dev->key)) { in input_set_keycode()
976 spin_unlock_irqrestore(&dev->event_lock, flags); in input_set_keycode()
985 if (id->flags & INPUT_DEVICE_ID_MATCH_BUS) in input_match_device_id()
986 if (id->bustype != dev->id.bustype) in input_match_device_id()
989 if (id->flags & INPUT_DEVICE_ID_MATCH_VENDOR) in input_match_device_id()
990 if (id->vendor != dev->id.vendor) in input_match_device_id()
993 if (id->flags & INPUT_DEVICE_ID_MATCH_PRODUCT) in input_match_device_id()
994 if (id->product != dev->id.product) in input_match_device_id()
997 if (id->flags & INPUT_DEVICE_ID_MATCH_VERSION) in input_match_device_id()
998 if (id->version != dev->id.version) in input_match_device_id()
1001 if (!bitmap_subset(id->evbit, dev->evbit, EV_MAX) || in input_match_device_id()
1002 !bitmap_subset(id->keybit, dev->keybit, KEY_MAX) || in input_match_device_id()
1003 !bitmap_subset(id->relbit, dev->relbit, REL_MAX) || in input_match_device_id()
1004 !bitmap_subset(id->absbit, dev->absbit, ABS_MAX) || in input_match_device_id()
1005 !bitmap_subset(id->mscbit, dev->mscbit, MSC_MAX) || in input_match_device_id()
1006 !bitmap_subset(id->ledbit, dev->ledbit, LED_MAX) || in input_match_device_id()
1007 !bitmap_subset(id->sndbit, dev->sndbit, SND_MAX) || in input_match_device_id()
1008 !bitmap_subset(id->ffbit, dev->ffbit, FF_MAX) || in input_match_device_id()
1009 !bitmap_subset(id->swbit, dev->swbit, SW_MAX) || in input_match_device_id()
1010 !bitmap_subset(id->propbit, dev->propbit, INPUT_PROP_MAX)) { in input_match_device_id()
1023 for (id = handler->id_table; id->flags || id->driver_info; id++) { in input_match_device()
1025 (!handler->match || handler->match(handler, dev))) { in input_match_device()
1040 return -ENODEV; in input_attach_handler()
1042 error = handler->connect(handler, dev, id); in input_attach_handler()
1043 if (error && error != -ENODEV) in input_attach_handler()
1045 handler->name, kobject_name(&dev->dev.kobj), error); in input_attach_handler()
1064 len += snprintf(buf + len, max(buf_size - len, 0), in input_bits_to_string()
1100 if (file->f_version != input_devices_state) { in input_proc_devices_poll()
1101 file->f_version = input_devices_state; in input_proc_devices_poll()
1118 union input_seq_state *state = (union input_seq_state *)&seq->private; in input_devices_seq_start()
1121 /* We need to fit into seq->private pointer */ in input_devices_seq_start()
1122 BUILD_BUG_ON(sizeof(union input_seq_state) != sizeof(seq->private)); in input_devices_seq_start()
1126 state->mutex_acquired = false; in input_devices_seq_start()
1130 state->mutex_acquired = true; in input_devices_seq_start()
1142 union input_seq_state *state = (union input_seq_state *)&seq->private; in input_seq_stop()
1144 if (state->mutex_acquired) in input_seq_stop()
1157 for (i = BITS_TO_LONGS(max) - 1; i >= 0; i--) { in input_seq_print_bitmap()
1177 const char *path = kobject_get_path(&dev->dev.kobj, GFP_KERNEL); in input_devices_seq_show()
1181 dev->id.bustype, dev->id.vendor, dev->id.product, dev->id.version); in input_devices_seq_show()
1183 seq_printf(seq, "N: Name=\"%s\"\n", dev->name ? dev->name : ""); in input_devices_seq_show()
1184 seq_printf(seq, "P: Phys=%s\n", dev->phys ? dev->phys : ""); in input_devices_seq_show()
1186 seq_printf(seq, "U: Uniq=%s\n", dev->uniq ? dev->uniq : ""); in input_devices_seq_show()
1189 list_for_each_entry(handle, &dev->h_list, d_node) in input_devices_seq_show()
1190 seq_printf(seq, "%s ", handle->name); in input_devices_seq_show()
1193 input_seq_print_bitmap(seq, "PROP", dev->propbit, INPUT_PROP_MAX); in input_devices_seq_show()
1195 input_seq_print_bitmap(seq, "EV", dev->evbit, EV_MAX); in input_devices_seq_show()
1196 if (test_bit(EV_KEY, dev->evbit)) in input_devices_seq_show()
1197 input_seq_print_bitmap(seq, "KEY", dev->keybit, KEY_MAX); in input_devices_seq_show()
1198 if (test_bit(EV_REL, dev->evbit)) in input_devices_seq_show()
1199 input_seq_print_bitmap(seq, "REL", dev->relbit, REL_MAX); in input_devices_seq_show()
1200 if (test_bit(EV_ABS, dev->evbit)) in input_devices_seq_show()
1201 input_seq_print_bitmap(seq, "ABS", dev->absbit, ABS_MAX); in input_devices_seq_show()
1202 if (test_bit(EV_MSC, dev->evbit)) in input_devices_seq_show()
1203 input_seq_print_bitmap(seq, "MSC", dev->mscbit, MSC_MAX); in input_devices_seq_show()
1204 if (test_bit(EV_LED, dev->evbit)) in input_devices_seq_show()
1205 input_seq_print_bitmap(seq, "LED", dev->ledbit, LED_MAX); in input_devices_seq_show()
1206 if (test_bit(EV_SND, dev->evbit)) in input_devices_seq_show()
1207 input_seq_print_bitmap(seq, "SND", dev->sndbit, SND_MAX); in input_devices_seq_show()
1208 if (test_bit(EV_FF, dev->evbit)) in input_devices_seq_show()
1209 input_seq_print_bitmap(seq, "FF", dev->ffbit, FF_MAX); in input_devices_seq_show()
1210 if (test_bit(EV_SW, dev->evbit)) in input_devices_seq_show()
1211 input_seq_print_bitmap(seq, "SW", dev->swbit, SW_MAX); in input_devices_seq_show()
1241 union input_seq_state *state = (union input_seq_state *)&seq->private; in input_handlers_seq_start()
1244 /* We need to fit into seq->private pointer */ in input_handlers_seq_start()
1245 BUILD_BUG_ON(sizeof(union input_seq_state) != sizeof(seq->private)); in input_handlers_seq_start()
1249 state->mutex_acquired = false; in input_handlers_seq_start()
1253 state->mutex_acquired = true; in input_handlers_seq_start()
1254 state->pos = *pos; in input_handlers_seq_start()
1261 union input_seq_state *state = (union input_seq_state *)&seq->private; in input_handlers_seq_next()
1263 state->pos = *pos + 1; in input_handlers_seq_next()
1270 union input_seq_state *state = (union input_seq_state *)&seq->private; in input_handlers_seq_show()
1272 seq_printf(seq, "N: Number=%u Name=%s", state->pos, handler->name); in input_handlers_seq_show()
1273 if (handler->filter) in input_handlers_seq_show()
1275 if (handler->legacy_minors) in input_handlers_seq_show()
1276 seq_printf(seq, " Minor=%d", handler->minor); in input_handlers_seq_show()
1307 return -ENOMEM; in input_proc_init()
1323 return -ENOMEM; in input_proc_init()
1347 input_dev->name ? input_dev->name : ""); \
1364 len += snprintf(buf + len, max(size - len, 0), "%X,", i); in input_print_modalias_bits()
1374 "input:b%04Xv%04Xp%04Xe%04X-", in input_print_modalias()
1375 id->id.bustype, id->id.vendor, in input_print_modalias()
1376 id->id.product, id->id.version); in input_print_modalias()
1378 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1379 'e', id->evbit, 0, EV_MAX); in input_print_modalias()
1380 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1381 'k', id->keybit, KEY_MIN_INTERESTING, KEY_MAX); in input_print_modalias()
1382 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1383 'r', id->relbit, 0, REL_MAX); in input_print_modalias()
1384 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1385 'a', id->absbit, 0, ABS_MAX); in input_print_modalias()
1386 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1387 'm', id->mscbit, 0, MSC_MAX); in input_print_modalias()
1388 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1389 'l', id->ledbit, 0, LED_MAX); in input_print_modalias()
1390 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1391 's', id->sndbit, 0, SND_MAX); in input_print_modalias()
1392 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1393 'f', id->ffbit, 0, FF_MAX); in input_print_modalias()
1394 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1395 'w', id->swbit, 0, SW_MAX); in input_print_modalias()
1398 len += snprintf(buf + len, max(size - len, 0), "\n"); in input_print_modalias()
1424 int len = input_print_bitmap(buf, PAGE_SIZE, input_dev->propbit, in input_dev_show_properties()
1449 return scnprintf(buf, PAGE_SIZE, "%04x\n", input_dev->id.name); \
1478 for (i = BITS_TO_LONGS(max) - 1; i >= 0; i--) { in input_print_bitmap()
1479 len += input_bits_to_string(buf + len, max(buf_size - len, 0), in input_print_bitmap()
1484 len += snprintf(buf + len, max(buf_size - len, 0), " "); in input_print_bitmap()
1495 len += snprintf(buf + len, max(buf_size - len, 0), "\n"); in input_print_bitmap()
1507 input_dev->bm##bit, ev##_MAX, \
1555 kfree(dev->poller); in input_dev_release()
1556 kfree(dev->absinfo); in input_dev_release()
1557 kfree(dev->vals); in input_dev_release()
1564 * Input uevent interface - loading event handlers based on
1573 return -ENOMEM; in input_add_uevent_bm_var()
1575 len = input_print_bitmap(&env->buf[env->buflen - 1], in input_add_uevent_bm_var()
1576 sizeof(env->buf) - env->buflen, in input_add_uevent_bm_var()
1578 if (len >= (sizeof(env->buf) - env->buflen)) in input_add_uevent_bm_var()
1579 return -ENOMEM; in input_add_uevent_bm_var()
1581 env->buflen += len; in input_add_uevent_bm_var()
1591 return -ENOMEM; in input_add_uevent_modalias_var()
1593 len = input_print_modalias(&env->buf[env->buflen - 1], in input_add_uevent_modalias_var()
1594 sizeof(env->buf) - env->buflen, in input_add_uevent_modalias_var()
1596 if (len >= (sizeof(env->buf) - env->buflen)) in input_add_uevent_modalias_var()
1597 return -ENOMEM; in input_add_uevent_modalias_var()
1599 env->buflen += len; in input_add_uevent_modalias_var()
1629 dev->id.bustype, dev->id.vendor, in input_dev_uevent()
1630 dev->id.product, dev->id.version); in input_dev_uevent()
1631 if (dev->name) in input_dev_uevent()
1632 INPUT_ADD_HOTPLUG_VAR("NAME=\"%s\"", dev->name); in input_dev_uevent()
1633 if (dev->phys) in input_dev_uevent()
1634 INPUT_ADD_HOTPLUG_VAR("PHYS=\"%s\"", dev->phys); in input_dev_uevent()
1635 if (dev->uniq) in input_dev_uevent()
1636 INPUT_ADD_HOTPLUG_VAR("UNIQ=\"%s\"", dev->uniq); in input_dev_uevent()
1638 INPUT_ADD_HOTPLUG_BM_VAR("PROP=", dev->propbit, INPUT_PROP_MAX); in input_dev_uevent()
1640 INPUT_ADD_HOTPLUG_BM_VAR("EV=", dev->evbit, EV_MAX); in input_dev_uevent()
1641 if (test_bit(EV_KEY, dev->evbit)) in input_dev_uevent()
1642 INPUT_ADD_HOTPLUG_BM_VAR("KEY=", dev->keybit, KEY_MAX); in input_dev_uevent()
1643 if (test_bit(EV_REL, dev->evbit)) in input_dev_uevent()
1644 INPUT_ADD_HOTPLUG_BM_VAR("REL=", dev->relbit, REL_MAX); in input_dev_uevent()
1645 if (test_bit(EV_ABS, dev->evbit)) in input_dev_uevent()
1646 INPUT_ADD_HOTPLUG_BM_VAR("ABS=", dev->absbit, ABS_MAX); in input_dev_uevent()
1647 if (test_bit(EV_MSC, dev->evbit)) in input_dev_uevent()
1648 INPUT_ADD_HOTPLUG_BM_VAR("MSC=", dev->mscbit, MSC_MAX); in input_dev_uevent()
1649 if (test_bit(EV_LED, dev->evbit)) in input_dev_uevent()
1650 INPUT_ADD_HOTPLUG_BM_VAR("LED=", dev->ledbit, LED_MAX); in input_dev_uevent()
1651 if (test_bit(EV_SND, dev->evbit)) in input_dev_uevent()
1652 INPUT_ADD_HOTPLUG_BM_VAR("SND=", dev->sndbit, SND_MAX); in input_dev_uevent()
1653 if (test_bit(EV_FF, dev->evbit)) in input_dev_uevent()
1654 INPUT_ADD_HOTPLUG_BM_VAR("FF=", dev->ffbit, FF_MAX); in input_dev_uevent()
1655 if (test_bit(EV_SW, dev->evbit)) in input_dev_uevent()
1656 INPUT_ADD_HOTPLUG_BM_VAR("SW=", dev->swbit, SW_MAX); in input_dev_uevent()
1668 if (!test_bit(EV_##type, dev->evbit)) \
1671 for_each_set_bit(i, dev->bits##bit, type##_CNT) { \
1672 active = test_bit(i, dev->bits); \
1676 dev->event(dev, EV_##type, i, on ? active : 0); \
1682 if (!dev->event) in input_dev_toggle()
1688 if (activate && test_bit(EV_REP, dev->evbit)) { in input_dev_toggle()
1689 dev->event(dev, EV_REP, REP_PERIOD, dev->rep[REP_PERIOD]); in input_dev_toggle()
1690 dev->event(dev, EV_REP, REP_DELAY, dev->rep[REP_DELAY]); in input_dev_toggle()
1695 * input_reset_device() - reset/restore the state of input device
1706 mutex_lock(&dev->mutex); in input_reset_device()
1707 spin_lock_irqsave(&dev->event_lock, flags); in input_reset_device()
1712 spin_unlock_irqrestore(&dev->event_lock, flags); in input_reset_device()
1713 mutex_unlock(&dev->mutex); in input_reset_device()
1722 spin_lock_irq(&input_dev->event_lock); in input_dev_suspend()
1733 spin_unlock_irq(&input_dev->event_lock); in input_dev_suspend()
1742 spin_lock_irq(&input_dev->event_lock); in input_dev_resume()
1747 spin_unlock_irq(&input_dev->event_lock); in input_dev_resume()
1756 spin_lock_irq(&input_dev->event_lock); in input_dev_freeze()
1764 spin_unlock_irq(&input_dev->event_lock); in input_dev_freeze()
1773 spin_lock_irq(&input_dev->event_lock); in input_dev_poweroff()
1778 spin_unlock_irq(&input_dev->event_lock); in input_dev_poweroff()
1813 * input_allocate_device - allocate memory for new input device
1823 static atomic_t input_no = ATOMIC_INIT(-1); in input_allocate_device()
1828 dev->dev.type = &input_dev_type; in input_allocate_device()
1829 dev->dev.class = &input_class; in input_allocate_device()
1830 device_initialize(&dev->dev); in input_allocate_device()
1831 mutex_init(&dev->mutex); in input_allocate_device()
1832 spin_lock_init(&dev->event_lock); in input_allocate_device()
1833 timer_setup(&dev->timer, NULL, 0); in input_allocate_device()
1834 INIT_LIST_HEAD(&dev->h_list); in input_allocate_device()
1835 INIT_LIST_HEAD(&dev->node); in input_allocate_device()
1837 dev_set_name(&dev->dev, "input%lu", in input_allocate_device()
1855 return devres->input == data; in devm_input_device_match()
1861 struct input_dev *input = devres->input; in devm_input_device_release()
1864 __func__, dev_name(&input->dev)); in devm_input_device_release()
1869 * devm_input_allocate_device - allocate managed input device
1902 input->dev.parent = dev; in devm_input_allocate_device()
1903 input->devres_managed = true; in devm_input_allocate_device()
1905 devres->input = input; in devm_input_allocate_device()
1913 * input_free_device - free memory occupied by input_dev structure
1929 if (dev->devres_managed) in input_free_device()
1930 WARN_ON(devres_destroy(dev->dev.parent, in input_free_device()
1940 * input_set_timestamp - set timestamp for input events
1955 dev->timestamp[INPUT_CLK_MONO] = timestamp; in input_set_timestamp()
1956 dev->timestamp[INPUT_CLK_REAL] = ktime_mono_to_real(timestamp); in input_set_timestamp()
1957 dev->timestamp[INPUT_CLK_BOOT] = ktime_mono_to_any(timestamp, in input_set_timestamp()
1963 * input_get_timestamp - get timestamp for input events
1966 * A valid timestamp is a timestamp of non-zero value.
1972 if (!ktime_compare(dev->timestamp[INPUT_CLK_MONO], invalid_timestamp)) in input_get_timestamp()
1975 return dev->timestamp; in input_get_timestamp()
1980 * input_set_capability - mark device as capable of a certain event
1986 * bitmap the function also adjusts dev->evbit.
2000 __set_bit(code, dev->keybit); in input_set_capability()
2004 __set_bit(code, dev->relbit); in input_set_capability()
2009 if (!dev->absinfo) in input_set_capability()
2012 __set_bit(code, dev->absbit); in input_set_capability()
2016 __set_bit(code, dev->mscbit); in input_set_capability()
2020 __set_bit(code, dev->swbit); in input_set_capability()
2024 __set_bit(code, dev->ledbit); in input_set_capability()
2028 __set_bit(code, dev->sndbit); in input_set_capability()
2032 __set_bit(code, dev->ffbit); in input_set_capability()
2045 __set_bit(type, dev->evbit); in input_set_capability()
2055 if (dev->mt) { in input_estimate_events_per_packet()
2056 mt_slots = dev->mt->num_slots; in input_estimate_events_per_packet()
2057 } else if (test_bit(ABS_MT_TRACKING_ID, dev->absbit)) { in input_estimate_events_per_packet()
2058 mt_slots = dev->absinfo[ABS_MT_TRACKING_ID].maximum - in input_estimate_events_per_packet()
2059 dev->absinfo[ABS_MT_TRACKING_ID].minimum + 1, in input_estimate_events_per_packet()
2061 } else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) { in input_estimate_events_per_packet()
2069 if (test_bit(EV_ABS, dev->evbit)) in input_estimate_events_per_packet()
2070 for_each_set_bit(i, dev->absbit, ABS_CNT) in input_estimate_events_per_packet()
2073 if (test_bit(EV_REL, dev->evbit)) in input_estimate_events_per_packet()
2074 events += bitmap_weight(dev->relbit, REL_CNT); in input_estimate_events_per_packet()
2084 if (!test_bit(EV_##type, dev->evbit)) \
2085 memset(dev->bits##bit, 0, \
2086 sizeof(dev->bits##bit)); \
2109 list_for_each_entry_safe(handle, next, &dev->h_list, d_node) in __input_unregister_device()
2110 handle->handler->disconnect(handle); in __input_unregister_device()
2111 WARN_ON(!list_empty(&dev->h_list)); in __input_unregister_device()
2113 del_timer_sync(&dev->timer); in __input_unregister_device()
2114 list_del_init(&dev->node); in __input_unregister_device()
2120 device_del(&dev->dev); in __input_unregister_device()
2126 struct input_dev *input = devres->input; in devm_input_device_unregister()
2129 __func__, dev_name(&input->dev)); in devm_input_device_unregister()
2134 * input_enable_softrepeat - enable software autorepeat
2143 dev->timer.function = input_repeat_key; in input_enable_softrepeat()
2144 dev->rep[REP_DELAY] = delay; in input_enable_softrepeat()
2145 dev->rep[REP_PERIOD] = period; in input_enable_softrepeat()
2150 * input_register_device - register device with input core
2165 * that tear down of managed input devices is internally a 2-step process:
2180 if (test_bit(EV_ABS, dev->evbit) && !dev->absinfo) { in input_register_device()
2181 dev_err(&dev->dev, in input_register_device()
2182 "Absolute device without dev->absinfo, refusing to register\n"); in input_register_device()
2183 return -EINVAL; in input_register_device()
2186 if (dev->devres_managed) { in input_register_device()
2190 return -ENOMEM; in input_register_device()
2192 devres->input = dev; in input_register_device()
2196 __set_bit(EV_SYN, dev->evbit); in input_register_device()
2199 __clear_bit(KEY_RESERVED, dev->keybit); in input_register_device()
2201 /* Make sure that bitmasks not mentioned in dev->evbit are clean. */ in input_register_device()
2205 if (dev->hint_events_per_packet < packet_size) in input_register_device()
2206 dev->hint_events_per_packet = packet_size; in input_register_device()
2208 dev->max_vals = dev->hint_events_per_packet + 2; in input_register_device()
2209 dev->vals = kcalloc(dev->max_vals, sizeof(*dev->vals), GFP_KERNEL); in input_register_device()
2210 if (!dev->vals) { in input_register_device()
2211 error = -ENOMEM; in input_register_device()
2216 * If delay and period are pre-set by the driver, then autorepeating in input_register_device()
2219 if (!dev->rep[REP_DELAY] && !dev->rep[REP_PERIOD]) in input_register_device()
2222 if (!dev->getkeycode) in input_register_device()
2223 dev->getkeycode = input_default_getkeycode; in input_register_device()
2225 if (!dev->setkeycode) in input_register_device()
2226 dev->setkeycode = input_default_setkeycode; in input_register_device()
2228 if (dev->poller) in input_register_device()
2229 input_dev_poller_finalize(dev->poller); in input_register_device()
2231 error = device_add(&dev->dev); in input_register_device()
2235 path = kobject_get_path(&dev->dev.kobj, GFP_KERNEL); in input_register_device()
2237 dev->name ? dev->name : "Unspecified device", in input_register_device()
2245 list_add_tail(&dev->node, &input_dev_list); in input_register_device()
2254 if (dev->devres_managed) { in input_register_device()
2255 dev_dbg(dev->dev.parent, "%s: registering %s with devres.\n", in input_register_device()
2256 __func__, dev_name(&dev->dev)); in input_register_device()
2257 devres_add(dev->dev.parent, devres); in input_register_device()
2262 device_del(&dev->dev); in input_register_device()
2264 kfree(dev->vals); in input_register_device()
2265 dev->vals = NULL; in input_register_device()
2273 * input_unregister_device - unregister previously registered device
2281 if (dev->devres_managed) { in input_unregister_device()
2282 WARN_ON(devres_destroy(dev->dev.parent, in input_unregister_device()
2299 * input_register_handler - register a new input handler
2315 INIT_LIST_HEAD(&handler->h_list); in input_register_handler()
2317 list_add_tail(&handler->node, &input_handler_list); in input_register_handler()
2330 * input_unregister_handler - unregisters an input handler
2342 list_for_each_entry_safe(handle, next, &handler->h_list, h_node) in input_unregister_handler()
2343 handler->disconnect(handle); in input_unregister_handler()
2344 WARN_ON(!list_empty(&handler->h_list)); in input_unregister_handler()
2346 list_del_init(&handler->node); in input_unregister_handler()
2355 * input_handler_for_each_handle - handle iterator
2358 * @fn: function to be called for each handle
2360 * Iterate over @bus's list of devices, and call @fn for each, passing
2361 * it @data and stop when @fn returns a non-zero value. The function is
2363 * contexts. The @fn callback is invoked from RCU critical section and
2367 int (*fn)(struct input_handle *, void *)) in input_handler_for_each_handle()
2374 list_for_each_entry_rcu(handle, &handler->h_list, h_node) { in input_handler_for_each_handle()
2375 retval = fn(handle, data); in input_handler_for_each_handle()
2387 * input_register_handle - register a new input handle
2399 struct input_handler *handler = handle->handler; in input_register_handle()
2400 struct input_dev *dev = handle->dev; in input_register_handle()
2404 * We take dev->mutex here to prevent race with in input_register_handle()
2407 error = mutex_lock_interruptible(&dev->mutex); in input_register_handle()
2415 if (handler->filter) in input_register_handle()
2416 list_add_rcu(&handle->d_node, &dev->h_list); in input_register_handle()
2418 list_add_tail_rcu(&handle->d_node, &dev->h_list); in input_register_handle()
2420 mutex_unlock(&dev->mutex); in input_register_handle()
2423 * Since we are supposed to be called from ->connect() in input_register_handle()
2424 * which is mutually exclusive with ->disconnect() in input_register_handle()
2428 list_add_tail_rcu(&handle->h_node, &handler->h_list); in input_register_handle()
2430 if (handler->start) in input_register_handle()
2431 handler->start(handle); in input_register_handle()
2438 * input_unregister_handle - unregister an input handle
2449 struct input_dev *dev = handle->dev; in input_unregister_handle()
2451 list_del_rcu(&handle->h_node); in input_unregister_handle()
2454 * Take dev->mutex to prevent race with input_release_device(). in input_unregister_handle()
2456 mutex_lock(&dev->mutex); in input_unregister_handle()
2457 list_del_rcu(&handle->d_node); in input_unregister_handle()
2458 mutex_unlock(&dev->mutex); in input_unregister_handle()
2465 * input_get_new_minor - allocates a new input minor number
2479 * This function should be called from input handler's ->connect() in input_get_new_minor()
2499 * input_free_minor - release previously allocated minor