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"
59 if (value > old_val - fuzz / 2 && value < old_val + fuzz / 2) in input_defuzz_abs_event()
62 if (value > old_val - fuzz && value < old_val + fuzz) in input_defuzz_abs_event()
65 if (value > old_val - fuzz * 2 && value < old_val + fuzz * 2) in input_defuzz_abs_event()
74 if (test_bit(EV_REP, dev->evbit) && in input_start_autorepeat()
75 dev->rep[REP_PERIOD] && dev->rep[REP_DELAY] && in input_start_autorepeat()
76 dev->timer.function) { in input_start_autorepeat()
77 dev->repeat_key = code; in input_start_autorepeat()
78 mod_timer(&dev->timer, in input_start_autorepeat()
79 jiffies + msecs_to_jiffies(dev->rep[REP_DELAY])); in input_start_autorepeat()
85 del_timer(&dev->timer); in input_stop_autorepeat()
91 * dev->event_lock held and interrupts disabled.
96 struct input_handler *handler = handle->handler; in input_to_handler()
100 if (handler->filter) { in input_to_handler()
102 if (handler->filter(handle, v->type, v->code, v->value)) in input_to_handler()
108 count = end - vals; in input_to_handler()
114 if (handler->events) in input_to_handler()
115 handler->events(handle, vals, count); in input_to_handler()
116 else if (handler->event) in input_to_handler()
118 handler->event(handle, v->type, v->code, v->value); in input_to_handler()
126 * dev->event_lock held and interrupts disabled.
139 handle = rcu_dereference(dev->grab); in input_pass_values()
143 list_for_each_entry_rcu(handle, &dev->h_list, d_node) in input_pass_values()
144 if (handle->open) { in input_pass_values()
154 if (test_bit(EV_REP, dev->evbit) && test_bit(EV_KEY, dev->evbit)) { in input_pass_values()
156 if (v->type == EV_KEY && v->value != 2) { in input_pass_values()
157 if (v->value) in input_pass_values()
158 input_start_autorepeat(dev, v->code); in input_pass_values()
176 * dev->event_lock here to avoid racing with input_event
184 spin_lock_irqsave(&dev->event_lock, flags); in input_repeat_key()
186 if (test_bit(dev->repeat_key, dev->key) && in input_repeat_key()
187 is_event_supported(dev->repeat_key, dev->keybit, KEY_MAX)) { in input_repeat_key()
189 { EV_KEY, dev->repeat_key, 2 }, in input_repeat_key()
196 if (dev->rep[REP_PERIOD]) in input_repeat_key()
197 mod_timer(&dev->timer, jiffies + in input_repeat_key()
198 msecs_to_jiffies(dev->rep[REP_PERIOD])); in input_repeat_key()
201 spin_unlock_irqrestore(&dev->event_lock, flags); in input_repeat_key()
214 struct input_mt *mt = dev->mt; in input_handle_abs_event()
223 if (mt && *pval >= 0 && *pval < mt->num_slots) in input_handle_abs_event()
224 mt->slot = *pval; in input_handle_abs_event()
232 pold = &dev->absinfo[code].value; in input_handle_abs_event()
234 pold = &mt->slots[mt->slot].abs[code - ABS_MT_FIRST]; in input_handle_abs_event()
237 * Bypass filtering for multi-touch events when in input_handle_abs_event()
245 dev->absinfo[code].fuzz); in input_handle_abs_event()
253 if (is_mt_event && mt && mt->slot != input_abs_get_val(dev, ABS_MT_SLOT)) { in input_handle_abs_event()
254 input_abs_set_val(dev, ABS_MT_SLOT, mt->slot); in input_handle_abs_event()
285 if (is_event_supported(code, dev->keybit, KEY_MAX)) { in input_get_disposition()
287 /* auto-repeat bypasses state updates */ in input_get_disposition()
293 if (!!test_bit(code, dev->key) != !!value) { in input_get_disposition()
295 __change_bit(code, dev->key); in input_get_disposition()
302 if (is_event_supported(code, dev->swbit, SW_MAX) && in input_get_disposition()
303 !!test_bit(code, dev->sw) != !!value) { in input_get_disposition()
305 __change_bit(code, dev->sw); in input_get_disposition()
311 if (is_event_supported(code, dev->absbit, ABS_MAX)) in input_get_disposition()
317 if (is_event_supported(code, dev->relbit, REL_MAX) && value) in input_get_disposition()
323 if (is_event_supported(code, dev->mscbit, MSC_MAX)) in input_get_disposition()
329 if (is_event_supported(code, dev->ledbit, LED_MAX) && in input_get_disposition()
330 !!test_bit(code, dev->led) != !!value) { in input_get_disposition()
332 __change_bit(code, dev->led); in input_get_disposition()
338 if (is_event_supported(code, dev->sndbit, SND_MAX)) { in input_get_disposition()
340 if (!!test_bit(code, dev->snd) != !!value) in input_get_disposition()
341 __change_bit(code, dev->snd); in input_get_disposition()
347 if (code <= REP_MAX && value >= 0 && dev->rep[code] != value) { in input_get_disposition()
348 dev->rep[code] = value; in input_get_disposition()
372 /* filter-out events from inhibited devices */ in input_handle_event()
373 if (dev->inhibited) in input_handle_event()
380 if ((disposition & INPUT_PASS_TO_DEVICE) && dev->event) in input_handle_event()
381 dev->event(dev, type, code, value); in input_handle_event()
383 if (!dev->vals) in input_handle_event()
390 v = &dev->vals[dev->num_vals++]; in input_handle_event()
391 v->type = EV_ABS; in input_handle_event()
392 v->code = ABS_MT_SLOT; in input_handle_event()
393 v->value = dev->mt->slot; in input_handle_event()
396 v = &dev->vals[dev->num_vals++]; in input_handle_event()
397 v->type = type; in input_handle_event()
398 v->code = code; in input_handle_event()
399 v->value = value; in input_handle_event()
403 if (dev->num_vals >= 2) in input_handle_event()
404 input_pass_values(dev, dev->vals, dev->num_vals); in input_handle_event()
405 dev->num_vals = 0; in input_handle_event()
412 dev->timestamp[INPUT_CLK_MONO] = ktime_set(0, 0); in input_handle_event()
413 } else if (dev->num_vals >= dev->max_vals - 2) { in input_handle_event()
414 dev->vals[dev->num_vals++] = input_value_sync; in input_handle_event()
415 input_pass_values(dev, dev->vals, dev->num_vals); in input_handle_event()
416 dev->num_vals = 0; in input_handle_event()
422 * input_event() - report new input event
443 if (is_event_supported(type, dev->evbit, EV_MAX)) { in input_event()
445 spin_lock_irqsave(&dev->event_lock, flags); in input_event()
447 spin_unlock_irqrestore(&dev->event_lock, flags); in input_event()
453 * input_inject_event() - send input event from input handler
466 struct input_dev *dev = handle->dev; in input_inject_event()
470 if (is_event_supported(type, dev->evbit, EV_MAX)) { in input_inject_event()
471 spin_lock_irqsave(&dev->event_lock, flags); in input_inject_event()
474 grab = rcu_dereference(dev->grab); in input_inject_event()
479 spin_unlock_irqrestore(&dev->event_lock, flags); in input_inject_event()
485 * input_alloc_absinfo - allocates array of input_absinfo structs
493 if (dev->absinfo) in input_alloc_absinfo()
496 dev->absinfo = kcalloc(ABS_CNT, sizeof(*dev->absinfo), GFP_KERNEL); in input_alloc_absinfo()
497 if (!dev->absinfo) { in input_alloc_absinfo()
498 dev_err(dev->dev.parent ?: &dev->dev, in input_alloc_absinfo()
515 if (!dev->absinfo) in input_set_abs_params()
518 absinfo = &dev->absinfo[axis]; in input_set_abs_params()
519 absinfo->minimum = min; in input_set_abs_params()
520 absinfo->maximum = max; in input_set_abs_params()
521 absinfo->fuzz = fuzz; in input_set_abs_params()
522 absinfo->flat = flat; in input_set_abs_params()
524 __set_bit(EV_ABS, dev->evbit); in input_set_abs_params()
525 __set_bit(axis, dev->absbit); in input_set_abs_params()
531 * input_grab_device - grabs device for exclusive use
540 struct input_dev *dev = handle->dev; in input_grab_device()
543 retval = mutex_lock_interruptible(&dev->mutex); in input_grab_device()
547 if (dev->grab) { in input_grab_device()
548 retval = -EBUSY; in input_grab_device()
552 rcu_assign_pointer(dev->grab, handle); in input_grab_device()
555 mutex_unlock(&dev->mutex); in input_grab_device()
562 struct input_dev *dev = handle->dev; in __input_release_device()
565 grabber = rcu_dereference_protected(dev->grab, in __input_release_device()
566 lockdep_is_held(&dev->mutex)); in __input_release_device()
568 rcu_assign_pointer(dev->grab, NULL); in __input_release_device()
572 list_for_each_entry(handle, &dev->h_list, d_node) in __input_release_device()
573 if (handle->open && handle->handler->start) in __input_release_device()
574 handle->handler->start(handle); in __input_release_device()
579 * input_release_device - release previously grabbed device
589 struct input_dev *dev = handle->dev; in input_release_device()
591 mutex_lock(&dev->mutex); in input_release_device()
593 mutex_unlock(&dev->mutex); in input_release_device()
598 * input_open_device - open input device
606 struct input_dev *dev = handle->dev; in input_open_device()
609 retval = mutex_lock_interruptible(&dev->mutex); in input_open_device()
613 if (dev->going_away) { in input_open_device()
614 retval = -ENODEV; in input_open_device()
618 handle->open++; in input_open_device()
620 if (dev->users++ || dev->inhibited) { in input_open_device()
628 if (dev->open) { in input_open_device()
629 retval = dev->open(dev); in input_open_device()
631 dev->users--; in input_open_device()
632 handle->open--; in input_open_device()
642 if (dev->poller) in input_open_device()
643 input_dev_poller_start(dev->poller); in input_open_device()
646 mutex_unlock(&dev->mutex); in input_open_device()
653 struct input_dev *dev = handle->dev; in input_flush_device()
656 retval = mutex_lock_interruptible(&dev->mutex); in input_flush_device()
660 if (dev->flush) in input_flush_device()
661 retval = dev->flush(dev, file); in input_flush_device()
663 mutex_unlock(&dev->mutex); in input_flush_device()
669 * input_close_device - close input device
677 struct input_dev *dev = handle->dev; in input_close_device()
679 mutex_lock(&dev->mutex); in input_close_device()
683 if (!dev->inhibited && !--dev->users) { in input_close_device()
684 if (dev->poller) in input_close_device()
685 input_dev_poller_stop(dev->poller); in input_close_device()
686 if (dev->close) in input_close_device()
687 dev->close(dev); in input_close_device()
690 if (!--handle->open) { in input_close_device()
699 mutex_unlock(&dev->mutex); in input_close_device()
705 * The function must be called with dev->event_lock held.
712 if (is_event_supported(EV_KEY, dev->evbit, EV_MAX)) { in input_dev_release_keys()
713 for_each_set_bit(code, dev->key, KEY_CNT) { in input_dev_release_keys()
721 memset(dev->key, 0, sizeof(dev->key)); in input_dev_release_keys()
733 * Mark device as going away. Note that we take dev->mutex here in input_disconnect_device()
734 * not to protect access to dev->going_away but rather to ensure in input_disconnect_device()
737 mutex_lock(&dev->mutex); in input_disconnect_device()
738 dev->going_away = true; in input_disconnect_device()
739 mutex_unlock(&dev->mutex); in input_disconnect_device()
741 spin_lock_irq(&dev->event_lock); in input_disconnect_device()
751 list_for_each_entry(handle, &dev->h_list, d_node) in input_disconnect_device()
752 handle->open = 0; in input_disconnect_device()
754 spin_unlock_irq(&dev->event_lock); in input_disconnect_device()
758 * input_scancode_to_scalar() - converts scancode in &struct input_keymap_entry
759 * @ke: keymap entry containing scancode to be converted.
764 * into scalar form understood by legacy keymap handling methods. These
770 switch (ke->len) { in input_scancode_to_scalar()
772 *scancode = *((u8 *)ke->scancode); in input_scancode_to_scalar()
776 *scancode = *((u16 *)ke->scancode); in input_scancode_to_scalar()
780 *scancode = *((u32 *)ke->scancode); in input_scancode_to_scalar()
784 return -EINVAL; in input_scancode_to_scalar()
799 switch (dev->keycodesize) { in input_fetch_keycode()
801 return ((u8 *)dev->keycode)[index]; in input_fetch_keycode()
804 return ((u16 *)dev->keycode)[index]; in input_fetch_keycode()
807 return ((u32 *)dev->keycode)[index]; in input_fetch_keycode()
817 if (!dev->keycodesize) in input_default_getkeycode()
818 return -EINVAL; in input_default_getkeycode()
820 if (ke->flags & INPUT_KEYMAP_BY_INDEX) in input_default_getkeycode()
821 index = ke->index; in input_default_getkeycode()
828 if (index >= dev->keycodemax) in input_default_getkeycode()
829 return -EINVAL; in input_default_getkeycode()
831 ke->keycode = input_fetch_keycode(dev, index); in input_default_getkeycode()
832 ke->index = index; in input_default_getkeycode()
833 ke->len = sizeof(index); in input_default_getkeycode()
834 memcpy(ke->scancode, &index, sizeof(index)); in input_default_getkeycode()
847 if (!dev->keycodesize) in input_default_setkeycode()
848 return -EINVAL; in input_default_setkeycode()
850 if (ke->flags & INPUT_KEYMAP_BY_INDEX) { in input_default_setkeycode()
851 index = ke->index; in input_default_setkeycode()
858 if (index >= dev->keycodemax) in input_default_setkeycode()
859 return -EINVAL; in input_default_setkeycode()
861 if (dev->keycodesize < sizeof(ke->keycode) && in input_default_setkeycode()
862 (ke->keycode >> (dev->keycodesize * 8))) in input_default_setkeycode()
863 return -EINVAL; in input_default_setkeycode()
865 switch (dev->keycodesize) { in input_default_setkeycode()
867 u8 *k = (u8 *)dev->keycode; in input_default_setkeycode()
869 k[index] = ke->keycode; in input_default_setkeycode()
873 u16 *k = (u16 *)dev->keycode; in input_default_setkeycode()
875 k[index] = ke->keycode; in input_default_setkeycode()
879 u32 *k = (u32 *)dev->keycode; in input_default_setkeycode()
881 k[index] = ke->keycode; in input_default_setkeycode()
887 __clear_bit(*old_keycode, dev->keybit); in input_default_setkeycode()
888 for (i = 0; i < dev->keycodemax; i++) { in input_default_setkeycode()
890 __set_bit(*old_keycode, dev->keybit); in input_default_setkeycode()
897 __set_bit(ke->keycode, dev->keybit); in input_default_setkeycode()
902 * input_get_keycode - retrieve keycode currently mapped to a given scancode
903 * @dev: input device which keymap is being queried
904 * @ke: keymap entry
907 * keymap. Presently evdev handlers use it.
914 spin_lock_irqsave(&dev->event_lock, flags); in input_get_keycode()
915 retval = dev->getkeycode(dev, ke); in input_get_keycode()
916 spin_unlock_irqrestore(&dev->event_lock, flags); in input_get_keycode()
923 * input_set_keycode - attribute a keycode to a given scancode
924 * @dev: input device which keymap is being updated
925 * @ke: new keymap entry
928 * keymap. Presently keyboard and evdev handlers use it.
937 if (ke->keycode > KEY_MAX) in input_set_keycode()
938 return -EINVAL; in input_set_keycode()
940 spin_lock_irqsave(&dev->event_lock, flags); in input_set_keycode()
942 retval = dev->setkeycode(dev, ke, &old_keycode); in input_set_keycode()
947 __clear_bit(KEY_RESERVED, dev->keybit); in input_set_keycode()
951 * in the keymap anymore in input_set_keycode()
954 dev_warn(dev->dev.parent ?: &dev->dev, in input_set_keycode()
957 } else if (test_bit(EV_KEY, dev->evbit) && in input_set_keycode()
958 !is_event_supported(old_keycode, dev->keybit, KEY_MAX) && in input_set_keycode()
959 __test_and_clear_bit(old_keycode, dev->key)) { in input_set_keycode()
969 spin_unlock_irqrestore(&dev->event_lock, flags); in input_set_keycode()
978 if (id->flags & INPUT_DEVICE_ID_MATCH_BUS) in input_match_device_id()
979 if (id->bustype != dev->id.bustype) in input_match_device_id()
982 if (id->flags & INPUT_DEVICE_ID_MATCH_VENDOR) in input_match_device_id()
983 if (id->vendor != dev->id.vendor) in input_match_device_id()
986 if (id->flags & INPUT_DEVICE_ID_MATCH_PRODUCT) in input_match_device_id()
987 if (id->product != dev->id.product) in input_match_device_id()
990 if (id->flags & INPUT_DEVICE_ID_MATCH_VERSION) in input_match_device_id()
991 if (id->version != dev->id.version) in input_match_device_id()
994 if (!bitmap_subset(id->evbit, dev->evbit, EV_MAX) || in input_match_device_id()
995 !bitmap_subset(id->keybit, dev->keybit, KEY_MAX) || in input_match_device_id()
996 !bitmap_subset(id->relbit, dev->relbit, REL_MAX) || in input_match_device_id()
997 !bitmap_subset(id->absbit, dev->absbit, ABS_MAX) || in input_match_device_id()
998 !bitmap_subset(id->mscbit, dev->mscbit, MSC_MAX) || in input_match_device_id()
999 !bitmap_subset(id->ledbit, dev->ledbit, LED_MAX) || in input_match_device_id()
1000 !bitmap_subset(id->sndbit, dev->sndbit, SND_MAX) || in input_match_device_id()
1001 !bitmap_subset(id->ffbit, dev->ffbit, FF_MAX) || in input_match_device_id()
1002 !bitmap_subset(id->swbit, dev->swbit, SW_MAX) || in input_match_device_id()
1003 !bitmap_subset(id->propbit, dev->propbit, INPUT_PROP_MAX)) { in input_match_device_id()
1016 for (id = handler->id_table; id->flags || id->driver_info; id++) { in input_match_device()
1018 (!handler->match || handler->match(handler, dev))) { in input_match_device()
1033 return -ENODEV; in input_attach_handler()
1035 error = handler->connect(handler, dev, id); in input_attach_handler()
1036 if (error && error != -ENODEV) in input_attach_handler()
1038 handler->name, kobject_name(&dev->dev.kobj), error); in input_attach_handler()
1057 len += snprintf(buf + len, max(buf_size - len, 0), in input_bits_to_string()
1093 if (file->f_version != input_devices_state) { in input_proc_devices_poll()
1094 file->f_version = input_devices_state; in input_proc_devices_poll()
1111 union input_seq_state *state = (union input_seq_state *)&seq->private; in input_devices_seq_start()
1114 /* We need to fit into seq->private pointer */ in input_devices_seq_start()
1115 BUILD_BUG_ON(sizeof(union input_seq_state) != sizeof(seq->private)); in input_devices_seq_start()
1119 state->mutex_acquired = false; in input_devices_seq_start()
1123 state->mutex_acquired = true; in input_devices_seq_start()
1135 union input_seq_state *state = (union input_seq_state *)&seq->private; in input_seq_stop()
1137 if (state->mutex_acquired) in input_seq_stop()
1150 for (i = BITS_TO_LONGS(max) - 1; i >= 0; i--) { in input_seq_print_bitmap()
1170 const char *path = kobject_get_path(&dev->dev.kobj, GFP_KERNEL); in input_devices_seq_show()
1174 dev->id.bustype, dev->id.vendor, dev->id.product, dev->id.version); in input_devices_seq_show()
1176 seq_printf(seq, "N: Name=\"%s\"\n", dev->name ? dev->name : ""); in input_devices_seq_show()
1177 seq_printf(seq, "P: Phys=%s\n", dev->phys ? dev->phys : ""); in input_devices_seq_show()
1179 seq_printf(seq, "U: Uniq=%s\n", dev->uniq ? dev->uniq : ""); in input_devices_seq_show()
1182 list_for_each_entry(handle, &dev->h_list, d_node) in input_devices_seq_show()
1183 seq_printf(seq, "%s ", handle->name); in input_devices_seq_show()
1186 input_seq_print_bitmap(seq, "PROP", dev->propbit, INPUT_PROP_MAX); in input_devices_seq_show()
1188 input_seq_print_bitmap(seq, "EV", dev->evbit, EV_MAX); in input_devices_seq_show()
1189 if (test_bit(EV_KEY, dev->evbit)) in input_devices_seq_show()
1190 input_seq_print_bitmap(seq, "KEY", dev->keybit, KEY_MAX); in input_devices_seq_show()
1191 if (test_bit(EV_REL, dev->evbit)) in input_devices_seq_show()
1192 input_seq_print_bitmap(seq, "REL", dev->relbit, REL_MAX); in input_devices_seq_show()
1193 if (test_bit(EV_ABS, dev->evbit)) in input_devices_seq_show()
1194 input_seq_print_bitmap(seq, "ABS", dev->absbit, ABS_MAX); in input_devices_seq_show()
1195 if (test_bit(EV_MSC, dev->evbit)) in input_devices_seq_show()
1196 input_seq_print_bitmap(seq, "MSC", dev->mscbit, MSC_MAX); in input_devices_seq_show()
1197 if (test_bit(EV_LED, dev->evbit)) in input_devices_seq_show()
1198 input_seq_print_bitmap(seq, "LED", dev->ledbit, LED_MAX); in input_devices_seq_show()
1199 if (test_bit(EV_SND, dev->evbit)) in input_devices_seq_show()
1200 input_seq_print_bitmap(seq, "SND", dev->sndbit, SND_MAX); in input_devices_seq_show()
1201 if (test_bit(EV_FF, dev->evbit)) in input_devices_seq_show()
1202 input_seq_print_bitmap(seq, "FF", dev->ffbit, FF_MAX); in input_devices_seq_show()
1203 if (test_bit(EV_SW, dev->evbit)) in input_devices_seq_show()
1204 input_seq_print_bitmap(seq, "SW", dev->swbit, SW_MAX); in input_devices_seq_show()
1234 union input_seq_state *state = (union input_seq_state *)&seq->private; in input_handlers_seq_start()
1237 /* We need to fit into seq->private pointer */ in input_handlers_seq_start()
1238 BUILD_BUG_ON(sizeof(union input_seq_state) != sizeof(seq->private)); in input_handlers_seq_start()
1242 state->mutex_acquired = false; in input_handlers_seq_start()
1246 state->mutex_acquired = true; in input_handlers_seq_start()
1247 state->pos = *pos; in input_handlers_seq_start()
1254 union input_seq_state *state = (union input_seq_state *)&seq->private; in input_handlers_seq_next()
1256 state->pos = *pos + 1; in input_handlers_seq_next()
1263 union input_seq_state *state = (union input_seq_state *)&seq->private; in input_handlers_seq_show()
1265 seq_printf(seq, "N: Number=%u Name=%s", state->pos, handler->name); in input_handlers_seq_show()
1266 if (handler->filter) in input_handlers_seq_show()
1268 if (handler->legacy_minors) in input_handlers_seq_show()
1269 seq_printf(seq, " Minor=%d", handler->minor); in input_handlers_seq_show()
1300 return -ENOMEM; in input_proc_init()
1316 return -ENOMEM; in input_proc_init()
1340 input_dev->name ? input_dev->name : ""); \
1357 len += snprintf(buf + len, max(size - len, 0), "%X,", i); in input_print_modalias_bits()
1367 "input:b%04Xv%04Xp%04Xe%04X-", in input_print_modalias()
1368 id->id.bustype, id->id.vendor, in input_print_modalias()
1369 id->id.product, id->id.version); in input_print_modalias()
1371 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1372 'e', id->evbit, 0, EV_MAX); in input_print_modalias()
1373 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1374 'k', id->keybit, KEY_MIN_INTERESTING, KEY_MAX); in input_print_modalias()
1375 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1376 'r', id->relbit, 0, REL_MAX); in input_print_modalias()
1377 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1378 'a', id->absbit, 0, ABS_MAX); in input_print_modalias()
1379 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1380 'm', id->mscbit, 0, MSC_MAX); in input_print_modalias()
1381 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1382 'l', id->ledbit, 0, LED_MAX); in input_print_modalias()
1383 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1384 's', id->sndbit, 0, SND_MAX); in input_print_modalias()
1385 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1386 'f', id->ffbit, 0, FF_MAX); in input_print_modalias()
1387 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1388 'w', id->swbit, 0, SW_MAX); in input_print_modalias()
1391 len += snprintf(buf + len, max(size - len, 0), "\n"); in input_print_modalias()
1417 int len = input_print_bitmap(buf, PAGE_SIZE, input_dev->propbit, in input_dev_show_properties()
1432 return scnprintf(buf, PAGE_SIZE, "%d\n", input_dev->inhibited); in inhibited_show()
1444 return -EINVAL; in inhibited_store()
1479 return scnprintf(buf, PAGE_SIZE, "%04x\n", input_dev->id.name); \
1508 for (i = BITS_TO_LONGS(max) - 1; i >= 0; i--) { in input_print_bitmap()
1509 len += input_bits_to_string(buf + len, max(buf_size - len, 0), in input_print_bitmap()
1514 len += snprintf(buf + len, max(buf_size - len, 0), " "); in input_print_bitmap()
1525 len += snprintf(buf + len, max(buf_size - len, 0), "\n"); in input_print_bitmap()
1537 input_dev->bm##bit, ev##_MAX, \
1585 kfree(dev->poller); in input_dev_release()
1586 kfree(dev->absinfo); in input_dev_release()
1587 kfree(dev->vals); in input_dev_release()
1594 * Input uevent interface - loading event handlers based on
1603 return -ENOMEM; in input_add_uevent_bm_var()
1605 len = input_print_bitmap(&env->buf[env->buflen - 1], in input_add_uevent_bm_var()
1606 sizeof(env->buf) - env->buflen, in input_add_uevent_bm_var()
1608 if (len >= (sizeof(env->buf) - env->buflen)) in input_add_uevent_bm_var()
1609 return -ENOMEM; in input_add_uevent_bm_var()
1611 env->buflen += len; in input_add_uevent_bm_var()
1621 return -ENOMEM; in input_add_uevent_modalias_var()
1623 len = input_print_modalias(&env->buf[env->buflen - 1], in input_add_uevent_modalias_var()
1624 sizeof(env->buf) - env->buflen, in input_add_uevent_modalias_var()
1626 if (len >= (sizeof(env->buf) - env->buflen)) in input_add_uevent_modalias_var()
1627 return -ENOMEM; in input_add_uevent_modalias_var()
1629 env->buflen += len; in input_add_uevent_modalias_var()
1659 dev->id.bustype, dev->id.vendor, in input_dev_uevent()
1660 dev->id.product, dev->id.version); in input_dev_uevent()
1661 if (dev->name) in input_dev_uevent()
1662 INPUT_ADD_HOTPLUG_VAR("NAME=\"%s\"", dev->name); in input_dev_uevent()
1663 if (dev->phys) in input_dev_uevent()
1664 INPUT_ADD_HOTPLUG_VAR("PHYS=\"%s\"", dev->phys); in input_dev_uevent()
1665 if (dev->uniq) in input_dev_uevent()
1666 INPUT_ADD_HOTPLUG_VAR("UNIQ=\"%s\"", dev->uniq); in input_dev_uevent()
1668 INPUT_ADD_HOTPLUG_BM_VAR("PROP=", dev->propbit, INPUT_PROP_MAX); in input_dev_uevent()
1670 INPUT_ADD_HOTPLUG_BM_VAR("EV=", dev->evbit, EV_MAX); in input_dev_uevent()
1671 if (test_bit(EV_KEY, dev->evbit)) in input_dev_uevent()
1672 INPUT_ADD_HOTPLUG_BM_VAR("KEY=", dev->keybit, KEY_MAX); in input_dev_uevent()
1673 if (test_bit(EV_REL, dev->evbit)) in input_dev_uevent()
1674 INPUT_ADD_HOTPLUG_BM_VAR("REL=", dev->relbit, REL_MAX); in input_dev_uevent()
1675 if (test_bit(EV_ABS, dev->evbit)) in input_dev_uevent()
1676 INPUT_ADD_HOTPLUG_BM_VAR("ABS=", dev->absbit, ABS_MAX); in input_dev_uevent()
1677 if (test_bit(EV_MSC, dev->evbit)) in input_dev_uevent()
1678 INPUT_ADD_HOTPLUG_BM_VAR("MSC=", dev->mscbit, MSC_MAX); in input_dev_uevent()
1679 if (test_bit(EV_LED, dev->evbit)) in input_dev_uevent()
1680 INPUT_ADD_HOTPLUG_BM_VAR("LED=", dev->ledbit, LED_MAX); in input_dev_uevent()
1681 if (test_bit(EV_SND, dev->evbit)) in input_dev_uevent()
1682 INPUT_ADD_HOTPLUG_BM_VAR("SND=", dev->sndbit, SND_MAX); in input_dev_uevent()
1683 if (test_bit(EV_FF, dev->evbit)) in input_dev_uevent()
1684 INPUT_ADD_HOTPLUG_BM_VAR("FF=", dev->ffbit, FF_MAX); in input_dev_uevent()
1685 if (test_bit(EV_SW, dev->evbit)) in input_dev_uevent()
1686 INPUT_ADD_HOTPLUG_BM_VAR("SW=", dev->swbit, SW_MAX); in input_dev_uevent()
1698 if (!test_bit(EV_##type, dev->evbit)) \
1701 for_each_set_bit(i, dev->bits##bit, type##_CNT) { \
1702 active = test_bit(i, dev->bits); \
1706 dev->event(dev, EV_##type, i, on ? active : 0); \
1712 if (!dev->event) in input_dev_toggle()
1718 if (activate && test_bit(EV_REP, dev->evbit)) { in input_dev_toggle()
1719 dev->event(dev, EV_REP, REP_PERIOD, dev->rep[REP_PERIOD]); in input_dev_toggle()
1720 dev->event(dev, EV_REP, REP_DELAY, dev->rep[REP_DELAY]); in input_dev_toggle()
1725 * input_reset_device() - reset/restore the state of input device
1736 mutex_lock(&dev->mutex); in input_reset_device()
1737 spin_lock_irqsave(&dev->event_lock, flags); in input_reset_device()
1742 spin_unlock_irqrestore(&dev->event_lock, flags); in input_reset_device()
1743 mutex_unlock(&dev->mutex); in input_reset_device()
1751 mutex_lock(&dev->mutex); in input_inhibit_device()
1753 if (dev->inhibited) in input_inhibit_device()
1756 if (dev->users) { in input_inhibit_device()
1757 if (dev->close) in input_inhibit_device()
1758 dev->close(dev); in input_inhibit_device()
1759 if (dev->poller) in input_inhibit_device()
1760 input_dev_poller_stop(dev->poller); in input_inhibit_device()
1763 spin_lock_irq(&dev->event_lock); in input_inhibit_device()
1766 spin_unlock_irq(&dev->event_lock); in input_inhibit_device()
1768 dev->inhibited = true; in input_inhibit_device()
1771 mutex_unlock(&dev->mutex); in input_inhibit_device()
1779 mutex_lock(&dev->mutex); in input_uninhibit_device()
1781 if (!dev->inhibited) in input_uninhibit_device()
1784 if (dev->users) { in input_uninhibit_device()
1785 if (dev->open) { in input_uninhibit_device()
1786 ret = dev->open(dev); in input_uninhibit_device()
1790 if (dev->poller) in input_uninhibit_device()
1791 input_dev_poller_start(dev->poller); in input_uninhibit_device()
1794 dev->inhibited = false; in input_uninhibit_device()
1795 spin_lock_irq(&dev->event_lock); in input_uninhibit_device()
1797 spin_unlock_irq(&dev->event_lock); in input_uninhibit_device()
1800 mutex_unlock(&dev->mutex); in input_uninhibit_device()
1809 spin_lock_irq(&input_dev->event_lock); in input_dev_suspend()
1820 spin_unlock_irq(&input_dev->event_lock); in input_dev_suspend()
1829 spin_lock_irq(&input_dev->event_lock); in input_dev_resume()
1834 spin_unlock_irq(&input_dev->event_lock); in input_dev_resume()
1843 spin_lock_irq(&input_dev->event_lock); in input_dev_freeze()
1851 spin_unlock_irq(&input_dev->event_lock); in input_dev_freeze()
1860 spin_lock_irq(&input_dev->event_lock); in input_dev_poweroff()
1865 spin_unlock_irq(&input_dev->event_lock); in input_dev_poweroff()
1900 * input_allocate_device - allocate memory for new input device
1910 static atomic_t input_no = ATOMIC_INIT(-1); in input_allocate_device()
1915 dev->dev.type = &input_dev_type; in input_allocate_device()
1916 dev->dev.class = &input_class; in input_allocate_device()
1917 device_initialize(&dev->dev); in input_allocate_device()
1918 mutex_init(&dev->mutex); in input_allocate_device()
1919 spin_lock_init(&dev->event_lock); in input_allocate_device()
1920 timer_setup(&dev->timer, NULL, 0); in input_allocate_device()
1921 INIT_LIST_HEAD(&dev->h_list); in input_allocate_device()
1922 INIT_LIST_HEAD(&dev->node); in input_allocate_device()
1924 dev_set_name(&dev->dev, "input%lu", in input_allocate_device()
1942 return devres->input == data; in devm_input_device_match()
1948 struct input_dev *input = devres->input; in devm_input_device_release()
1951 __func__, dev_name(&input->dev)); in devm_input_device_release()
1956 * devm_input_allocate_device - allocate managed input device
1989 input->dev.parent = dev; in devm_input_allocate_device()
1990 input->devres_managed = true; in devm_input_allocate_device()
1992 devres->input = input; in devm_input_allocate_device()
2000 * input_free_device - free memory occupied by input_dev structure
2016 if (dev->devres_managed) in input_free_device()
2017 WARN_ON(devres_destroy(dev->dev.parent, in input_free_device()
2027 * input_set_timestamp - set timestamp for input events
2042 dev->timestamp[INPUT_CLK_MONO] = timestamp; in input_set_timestamp()
2043 dev->timestamp[INPUT_CLK_REAL] = ktime_mono_to_real(timestamp); in input_set_timestamp()
2044 dev->timestamp[INPUT_CLK_BOOT] = ktime_mono_to_any(timestamp, in input_set_timestamp()
2050 * input_get_timestamp - get timestamp for input events
2053 * A valid timestamp is a timestamp of non-zero value.
2059 if (!ktime_compare(dev->timestamp[INPUT_CLK_MONO], invalid_timestamp)) in input_get_timestamp()
2062 return dev->timestamp; in input_get_timestamp()
2067 * input_set_capability - mark device as capable of a certain event
2073 * bitmap the function also adjusts dev->evbit.
2079 __set_bit(code, dev->keybit); in input_set_capability()
2083 __set_bit(code, dev->relbit); in input_set_capability()
2088 if (!dev->absinfo) in input_set_capability()
2091 __set_bit(code, dev->absbit); in input_set_capability()
2095 __set_bit(code, dev->mscbit); in input_set_capability()
2099 __set_bit(code, dev->swbit); in input_set_capability()
2103 __set_bit(code, dev->ledbit); in input_set_capability()
2107 __set_bit(code, dev->sndbit); in input_set_capability()
2111 __set_bit(code, dev->ffbit); in input_set_capability()
2124 __set_bit(type, dev->evbit); in input_set_capability()
2134 if (dev->mt) { in input_estimate_events_per_packet()
2135 mt_slots = dev->mt->num_slots; in input_estimate_events_per_packet()
2136 } else if (test_bit(ABS_MT_TRACKING_ID, dev->absbit)) { in input_estimate_events_per_packet()
2137 mt_slots = dev->absinfo[ABS_MT_TRACKING_ID].maximum - in input_estimate_events_per_packet()
2138 dev->absinfo[ABS_MT_TRACKING_ID].minimum + 1, in input_estimate_events_per_packet()
2140 } else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) { in input_estimate_events_per_packet()
2148 if (test_bit(EV_ABS, dev->evbit)) in input_estimate_events_per_packet()
2149 for_each_set_bit(i, dev->absbit, ABS_CNT) in input_estimate_events_per_packet()
2152 if (test_bit(EV_REL, dev->evbit)) in input_estimate_events_per_packet()
2153 events += bitmap_weight(dev->relbit, REL_CNT); in input_estimate_events_per_packet()
2163 if (!test_bit(EV_##type, dev->evbit)) \
2164 memset(dev->bits##bit, 0, \
2165 sizeof(dev->bits##bit)); \
2188 list_for_each_entry_safe(handle, next, &dev->h_list, d_node) in __input_unregister_device()
2189 handle->handler->disconnect(handle); in __input_unregister_device()
2190 WARN_ON(!list_empty(&dev->h_list)); in __input_unregister_device()
2192 del_timer_sync(&dev->timer); in __input_unregister_device()
2193 list_del_init(&dev->node); in __input_unregister_device()
2199 device_del(&dev->dev); in __input_unregister_device()
2205 struct input_dev *input = devres->input; in devm_input_device_unregister()
2208 __func__, dev_name(&input->dev)); in devm_input_device_unregister()
2213 * input_enable_softrepeat - enable software autorepeat
2222 dev->timer.function = input_repeat_key; in input_enable_softrepeat()
2223 dev->rep[REP_DELAY] = delay; in input_enable_softrepeat()
2224 dev->rep[REP_PERIOD] = period; in input_enable_softrepeat()
2230 lockdep_assert_held(&dev->mutex); in input_device_enabled()
2232 return !dev->inhibited && dev->users > 0; in input_device_enabled()
2237 * input_register_device - register device with input core
2252 * that tear down of managed input devices is internally a 2-step process:
2267 if (test_bit(EV_ABS, dev->evbit) && !dev->absinfo) { in input_register_device()
2268 dev_err(&dev->dev, in input_register_device()
2269 "Absolute device without dev->absinfo, refusing to register\n"); in input_register_device()
2270 return -EINVAL; in input_register_device()
2273 if (dev->devres_managed) { in input_register_device()
2277 return -ENOMEM; in input_register_device()
2279 devres->input = dev; in input_register_device()
2283 __set_bit(EV_SYN, dev->evbit); in input_register_device()
2286 __clear_bit(KEY_RESERVED, dev->keybit); in input_register_device()
2288 /* Make sure that bitmasks not mentioned in dev->evbit are clean. */ in input_register_device()
2292 if (dev->hint_events_per_packet < packet_size) in input_register_device()
2293 dev->hint_events_per_packet = packet_size; in input_register_device()
2295 dev->max_vals = dev->hint_events_per_packet + 2; in input_register_device()
2296 dev->vals = kcalloc(dev->max_vals, sizeof(*dev->vals), GFP_KERNEL); in input_register_device()
2297 if (!dev->vals) { in input_register_device()
2298 error = -ENOMEM; in input_register_device()
2303 * If delay and period are pre-set by the driver, then autorepeating in input_register_device()
2306 if (!dev->rep[REP_DELAY] && !dev->rep[REP_PERIOD]) in input_register_device()
2309 if (!dev->getkeycode) in input_register_device()
2310 dev->getkeycode = input_default_getkeycode; in input_register_device()
2312 if (!dev->setkeycode) in input_register_device()
2313 dev->setkeycode = input_default_setkeycode; in input_register_device()
2315 if (dev->poller) in input_register_device()
2316 input_dev_poller_finalize(dev->poller); in input_register_device()
2318 error = device_add(&dev->dev); in input_register_device()
2322 path = kobject_get_path(&dev->dev.kobj, GFP_KERNEL); in input_register_device()
2324 dev->name ? dev->name : "Unspecified device", in input_register_device()
2332 list_add_tail(&dev->node, &input_dev_list); in input_register_device()
2341 if (dev->devres_managed) { in input_register_device()
2342 dev_dbg(dev->dev.parent, "%s: registering %s with devres.\n", in input_register_device()
2343 __func__, dev_name(&dev->dev)); in input_register_device()
2344 devres_add(dev->dev.parent, devres); in input_register_device()
2349 device_del(&dev->dev); in input_register_device()
2351 kfree(dev->vals); in input_register_device()
2352 dev->vals = NULL; in input_register_device()
2360 * input_unregister_device - unregister previously registered device
2368 if (dev->devres_managed) { in input_unregister_device()
2369 WARN_ON(devres_destroy(dev->dev.parent, in input_unregister_device()
2386 * input_register_handler - register a new input handler
2402 INIT_LIST_HEAD(&handler->h_list); in input_register_handler()
2404 list_add_tail(&handler->node, &input_handler_list); in input_register_handler()
2417 * input_unregister_handler - unregisters an input handler
2429 list_for_each_entry_safe(handle, next, &handler->h_list, h_node) in input_unregister_handler()
2430 handler->disconnect(handle); in input_unregister_handler()
2431 WARN_ON(!list_empty(&handler->h_list)); in input_unregister_handler()
2433 list_del_init(&handler->node); in input_unregister_handler()
2442 * input_handler_for_each_handle - handle iterator
2445 * @fn: function to be called for each handle
2447 * Iterate over @bus's list of devices, and call @fn for each, passing
2448 * it @data and stop when @fn returns a non-zero value. The function is
2450 * contexts. The @fn callback is invoked from RCU critical section and
2454 int (*fn)(struct input_handle *, void *)) in input_handler_for_each_handle()
2461 list_for_each_entry_rcu(handle, &handler->h_list, h_node) { in input_handler_for_each_handle()
2462 retval = fn(handle, data); in input_handler_for_each_handle()
2474 * input_register_handle - register a new input handle
2486 struct input_handler *handler = handle->handler; in input_register_handle()
2487 struct input_dev *dev = handle->dev; in input_register_handle()
2491 * We take dev->mutex here to prevent race with in input_register_handle()
2494 error = mutex_lock_interruptible(&dev->mutex); in input_register_handle()
2502 if (handler->filter) in input_register_handle()
2503 list_add_rcu(&handle->d_node, &dev->h_list); in input_register_handle()
2505 list_add_tail_rcu(&handle->d_node, &dev->h_list); in input_register_handle()
2507 mutex_unlock(&dev->mutex); in input_register_handle()
2510 * Since we are supposed to be called from ->connect() in input_register_handle()
2511 * which is mutually exclusive with ->disconnect() in input_register_handle()
2515 list_add_tail_rcu(&handle->h_node, &handler->h_list); in input_register_handle()
2517 if (handler->start) in input_register_handle()
2518 handler->start(handle); in input_register_handle()
2525 * input_unregister_handle - unregister an input handle
2536 struct input_dev *dev = handle->dev; in input_unregister_handle()
2538 list_del_rcu(&handle->h_node); in input_unregister_handle()
2541 * Take dev->mutex to prevent race with input_release_device(). in input_unregister_handle()
2543 mutex_lock(&dev->mutex); in input_unregister_handle()
2544 list_del_rcu(&handle->d_node); in input_unregister_handle()
2545 mutex_unlock(&dev->mutex); in input_unregister_handle()
2552 * input_get_new_minor - allocates a new input minor number
2566 * This function should be called from input handler's ->connect() in input_get_new_minor()
2586 * input_free_minor - release previously allocated minor