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 > (long)old_val - fuzz / 2 && in input_defuzz_abs_event()
74 if (value > (long)old_val - fuzz && in input_defuzz_abs_event()
78 if (value > (long)old_val - fuzz * 2 && in input_defuzz_abs_event()
88 if (test_bit(EV_REP, dev->evbit) && in input_start_autorepeat()
89 dev->rep[REP_PERIOD] && dev->rep[REP_DELAY] && in input_start_autorepeat()
90 dev->timer.function) { in input_start_autorepeat()
91 dev->repeat_key = code; in input_start_autorepeat()
92 mod_timer(&dev->timer, in input_start_autorepeat()
93 jiffies + msecs_to_jiffies(dev->rep[REP_DELAY])); in input_start_autorepeat()
99 del_timer(&dev->timer); in input_stop_autorepeat()
105 * dev->event_lock held and interrupts disabled.
110 struct input_handler *handler = handle->handler; in input_to_handler()
114 if (handler->filter) { in input_to_handler()
116 if (handler->filter(handle, v->type, v->code, v->value)) in input_to_handler()
122 count = end - vals; in input_to_handler()
128 if (handler->events) in input_to_handler()
129 handler->events(handle, vals, count); in input_to_handler()
130 else if (handler->event) in input_to_handler()
132 handler->event(handle, v->type, v->code, v->value); in input_to_handler()
140 * dev->event_lock held and interrupts disabled.
153 handle = rcu_dereference(dev->grab); in input_pass_values()
157 list_for_each_entry_rcu(handle, &dev->h_list, d_node) in input_pass_values()
158 if (handle->open) { in input_pass_values()
168 if (test_bit(EV_REP, dev->evbit) && test_bit(EV_KEY, dev->evbit)) { in input_pass_values()
170 if (v->type == EV_KEY && v->value != 2) { in input_pass_values()
171 if (v->value) in input_pass_values()
172 input_start_autorepeat(dev, v->code); in input_pass_values()
190 * dev->event_lock here to avoid racing with input_event
198 spin_lock_irqsave(&dev->event_lock, flags); in input_repeat_key()
200 if (test_bit(dev->repeat_key, dev->key) && in input_repeat_key()
201 is_event_supported(dev->repeat_key, dev->keybit, KEY_MAX)) { in input_repeat_key()
203 { EV_KEY, dev->repeat_key, 2 }, in input_repeat_key()
210 if (dev->rep[REP_PERIOD]) in input_repeat_key()
211 mod_timer(&dev->timer, jiffies + in input_repeat_key()
212 msecs_to_jiffies(dev->rep[REP_PERIOD])); in input_repeat_key()
215 spin_unlock_irqrestore(&dev->event_lock, flags); in input_repeat_key()
228 struct input_mt *mt = dev->mt; in input_handle_abs_event()
237 if (mt && *pval >= 0 && *pval < mt->num_slots) in input_handle_abs_event()
238 mt->slot = *pval; in input_handle_abs_event()
246 pold = &dev->absinfo[code].value; in input_handle_abs_event()
248 pold = &mt->slots[mt->slot].abs[code - ABS_MT_FIRST]; in input_handle_abs_event()
251 * Bypass filtering for multi-touch events when in input_handle_abs_event()
259 dev->absinfo[code].fuzz); in input_handle_abs_event()
267 if (is_mt_event && mt && mt->slot != input_abs_get_val(dev, ABS_MT_SLOT)) { in input_handle_abs_event()
268 input_abs_set_val(dev, ABS_MT_SLOT, mt->slot); in input_handle_abs_event()
299 if (is_event_supported(code, dev->keybit, KEY_MAX)) { in input_get_disposition()
301 /* auto-repeat bypasses state updates */ in input_get_disposition()
307 if (!!test_bit(code, dev->key) != !!value) { in input_get_disposition()
309 __change_bit(code, dev->key); in input_get_disposition()
316 if (is_event_supported(code, dev->swbit, SW_MAX) && in input_get_disposition()
317 !!test_bit(code, dev->sw) != !!value) { in input_get_disposition()
319 __change_bit(code, dev->sw); in input_get_disposition()
325 if (is_event_supported(code, dev->absbit, ABS_MAX)) in input_get_disposition()
331 if (is_event_supported(code, dev->relbit, REL_MAX) && value) in input_get_disposition()
337 if (is_event_supported(code, dev->mscbit, MSC_MAX)) in input_get_disposition()
343 if (is_event_supported(code, dev->ledbit, LED_MAX) && in input_get_disposition()
344 !!test_bit(code, dev->led) != !!value) { in input_get_disposition()
346 __change_bit(code, dev->led); in input_get_disposition()
352 if (is_event_supported(code, dev->sndbit, SND_MAX)) { in input_get_disposition()
354 if (!!test_bit(code, dev->snd) != !!value) in input_get_disposition()
355 __change_bit(code, dev->snd); in input_get_disposition()
361 if (code <= REP_MAX && value >= 0 && dev->rep[code] != value) { in input_get_disposition()
362 dev->rep[code] = value; in input_get_disposition()
389 if ((disposition & INPUT_PASS_TO_DEVICE) && dev->event) in input_handle_event()
390 dev->event(dev, type, code, value); in input_handle_event()
392 if (!dev->vals) in input_handle_event()
399 v = &dev->vals[dev->num_vals++]; in input_handle_event()
400 v->type = EV_ABS; in input_handle_event()
401 v->code = ABS_MT_SLOT; in input_handle_event()
402 v->value = dev->mt->slot; in input_handle_event()
405 v = &dev->vals[dev->num_vals++]; in input_handle_event()
406 v->type = type; in input_handle_event()
407 v->code = code; in input_handle_event()
408 v->value = value; in input_handle_event()
412 if (dev->num_vals >= 2) in input_handle_event()
413 input_pass_values(dev, dev->vals, dev->num_vals); in input_handle_event()
414 dev->num_vals = 0; in input_handle_event()
421 dev->timestamp[INPUT_CLK_MONO] = ktime_set(0, 0); in input_handle_event()
422 } else if (dev->num_vals >= dev->max_vals - 2) { in input_handle_event()
423 dev->vals[dev->num_vals++] = input_value_sync; in input_handle_event()
424 input_pass_values(dev, dev->vals, dev->num_vals); in input_handle_event()
425 dev->num_vals = 0; in input_handle_event()
431 * input_event() - report new input event
452 if (is_event_supported(type, dev->evbit, EV_MAX)) { in input_event()
454 spin_lock_irqsave(&dev->event_lock, flags); in input_event()
456 spin_unlock_irqrestore(&dev->event_lock, flags); in input_event()
462 * input_inject_event() - send input event from input handler
475 struct input_dev *dev = handle->dev; in input_inject_event()
479 if (is_event_supported(type, dev->evbit, EV_MAX)) { in input_inject_event()
480 spin_lock_irqsave(&dev->event_lock, flags); in input_inject_event()
483 grab = rcu_dereference(dev->grab); in input_inject_event()
488 spin_unlock_irqrestore(&dev->event_lock, flags); in input_inject_event()
494 * input_alloc_absinfo - allocates array of input_absinfo structs
502 if (dev->absinfo) in input_alloc_absinfo()
505 dev->absinfo = kcalloc(ABS_CNT, sizeof(*dev->absinfo), GFP_KERNEL); in input_alloc_absinfo()
506 if (!dev->absinfo) { in input_alloc_absinfo()
507 dev_err(dev->dev.parent ?: &dev->dev, in input_alloc_absinfo()
524 if (!dev->absinfo) in input_set_abs_params()
527 absinfo = &dev->absinfo[axis]; in input_set_abs_params()
528 absinfo->minimum = min; in input_set_abs_params()
529 absinfo->maximum = max; in input_set_abs_params()
530 absinfo->fuzz = fuzz; in input_set_abs_params()
531 absinfo->flat = flat; in input_set_abs_params()
533 __set_bit(EV_ABS, dev->evbit); in input_set_abs_params()
534 __set_bit(axis, dev->absbit); in input_set_abs_params()
540 * input_grab_device - grabs device for exclusive use
549 struct input_dev *dev = handle->dev; in input_grab_device()
552 retval = mutex_lock_interruptible(&dev->mutex); in input_grab_device()
556 if (dev->grab) { in input_grab_device()
557 retval = -EBUSY; in input_grab_device()
561 rcu_assign_pointer(dev->grab, handle); in input_grab_device()
564 mutex_unlock(&dev->mutex); in input_grab_device()
571 struct input_dev *dev = handle->dev; in __input_release_device()
574 grabber = rcu_dereference_protected(dev->grab, in __input_release_device()
575 lockdep_is_held(&dev->mutex)); in __input_release_device()
577 rcu_assign_pointer(dev->grab, NULL); in __input_release_device()
581 list_for_each_entry(handle, &dev->h_list, d_node) in __input_release_device()
582 if (handle->open && handle->handler->start) in __input_release_device()
583 handle->handler->start(handle); in __input_release_device()
588 * input_release_device - release previously grabbed device
598 struct input_dev *dev = handle->dev; in input_release_device()
600 mutex_lock(&dev->mutex); in input_release_device()
602 mutex_unlock(&dev->mutex); in input_release_device()
607 * input_open_device - open input device
615 struct input_dev *dev = handle->dev; in input_open_device()
618 retval = mutex_lock_interruptible(&dev->mutex); in input_open_device()
622 if (dev->going_away) { in input_open_device()
623 retval = -ENODEV; in input_open_device()
627 handle->open++; in input_open_device()
629 if (dev->users++) { in input_open_device()
637 if (dev->open) { in input_open_device()
638 retval = dev->open(dev); in input_open_device()
640 dev->users--; in input_open_device()
641 handle->open--; in input_open_device()
651 if (dev->poller) in input_open_device()
652 input_dev_poller_start(dev->poller); in input_open_device()
655 mutex_unlock(&dev->mutex); in input_open_device()
662 struct input_dev *dev = handle->dev; in input_flush_device()
665 retval = mutex_lock_interruptible(&dev->mutex); in input_flush_device()
669 if (dev->flush) in input_flush_device()
670 retval = dev->flush(dev, file); in input_flush_device()
672 mutex_unlock(&dev->mutex); in input_flush_device()
678 * input_close_device - close input device
686 struct input_dev *dev = handle->dev; in input_close_device()
688 mutex_lock(&dev->mutex); in input_close_device()
692 if (!--dev->users) { in input_close_device()
693 if (dev->poller) in input_close_device()
694 input_dev_poller_stop(dev->poller); in input_close_device()
696 if (dev->close) in input_close_device()
697 dev->close(dev); in input_close_device()
700 if (!--handle->open) { in input_close_device()
709 mutex_unlock(&dev->mutex); in input_close_device()
715 * The function must be called with dev->event_lock held.
722 if (is_event_supported(EV_KEY, dev->evbit, EV_MAX)) { in input_dev_release_keys()
723 for_each_set_bit(code, dev->key, KEY_CNT) { in input_dev_release_keys()
731 memset(dev->key, 0, sizeof(dev->key)); in input_dev_release_keys()
743 * Mark device as going away. Note that we take dev->mutex here in input_disconnect_device()
744 * not to protect access to dev->going_away but rather to ensure in input_disconnect_device()
747 mutex_lock(&dev->mutex); in input_disconnect_device()
748 dev->going_away = true; in input_disconnect_device()
749 mutex_unlock(&dev->mutex); in input_disconnect_device()
751 spin_lock_irq(&dev->event_lock); in input_disconnect_device()
761 list_for_each_entry(handle, &dev->h_list, d_node) in input_disconnect_device()
762 handle->open = 0; in input_disconnect_device()
764 spin_unlock_irq(&dev->event_lock); in input_disconnect_device()
768 * input_scancode_to_scalar() - converts scancode in &struct input_keymap_entry
769 * @ke: keymap entry containing scancode to be converted.
774 * into scalar form understood by legacy keymap handling methods. These
780 switch (ke->len) { in input_scancode_to_scalar()
782 *scancode = *((u8 *)ke->scancode); in input_scancode_to_scalar()
786 *scancode = *((u16 *)ke->scancode); in input_scancode_to_scalar()
790 *scancode = *((u32 *)ke->scancode); in input_scancode_to_scalar()
794 return -EINVAL; in input_scancode_to_scalar()
809 switch (dev->keycodesize) { in input_fetch_keycode()
811 return ((u8 *)dev->keycode)[index]; in input_fetch_keycode()
814 return ((u16 *)dev->keycode)[index]; in input_fetch_keycode()
817 return ((u32 *)dev->keycode)[index]; in input_fetch_keycode()
827 if (!dev->keycodesize) in input_default_getkeycode()
828 return -EINVAL; in input_default_getkeycode()
830 if (ke->flags & INPUT_KEYMAP_BY_INDEX) in input_default_getkeycode()
831 index = ke->index; in input_default_getkeycode()
838 if (index >= dev->keycodemax) in input_default_getkeycode()
839 return -EINVAL; in input_default_getkeycode()
841 ke->keycode = input_fetch_keycode(dev, index); in input_default_getkeycode()
842 ke->index = index; in input_default_getkeycode()
843 ke->len = sizeof(index); in input_default_getkeycode()
844 memcpy(ke->scancode, &index, sizeof(index)); in input_default_getkeycode()
857 if (!dev->keycodesize) in input_default_setkeycode()
858 return -EINVAL; in input_default_setkeycode()
860 if (ke->flags & INPUT_KEYMAP_BY_INDEX) { in input_default_setkeycode()
861 index = ke->index; in input_default_setkeycode()
868 if (index >= dev->keycodemax) in input_default_setkeycode()
869 return -EINVAL; in input_default_setkeycode()
871 if (dev->keycodesize < sizeof(ke->keycode) && in input_default_setkeycode()
872 (ke->keycode >> (dev->keycodesize * 8))) in input_default_setkeycode()
873 return -EINVAL; in input_default_setkeycode()
875 switch (dev->keycodesize) { in input_default_setkeycode()
877 u8 *k = (u8 *)dev->keycode; in input_default_setkeycode()
879 k[index] = ke->keycode; in input_default_setkeycode()
883 u16 *k = (u16 *)dev->keycode; in input_default_setkeycode()
885 k[index] = ke->keycode; in input_default_setkeycode()
889 u32 *k = (u32 *)dev->keycode; in input_default_setkeycode()
891 k[index] = ke->keycode; in input_default_setkeycode()
897 __clear_bit(*old_keycode, dev->keybit); in input_default_setkeycode()
898 for (i = 0; i < dev->keycodemax; i++) { in input_default_setkeycode()
900 __set_bit(*old_keycode, dev->keybit); in input_default_setkeycode()
907 __set_bit(ke->keycode, dev->keybit); in input_default_setkeycode()
912 * input_get_keycode - retrieve keycode currently mapped to a given scancode
913 * @dev: input device which keymap is being queried
914 * @ke: keymap entry
917 * keymap. Presently evdev handlers use it.
924 spin_lock_irqsave(&dev->event_lock, flags); in input_get_keycode()
925 retval = dev->getkeycode(dev, ke); in input_get_keycode()
926 spin_unlock_irqrestore(&dev->event_lock, flags); in input_get_keycode()
933 * input_set_keycode - attribute a keycode to a given scancode
934 * @dev: input device which keymap is being updated
935 * @ke: new keymap entry
938 * keymap. Presently keyboard and evdev handlers use it.
947 if (ke->keycode > KEY_MAX) in input_set_keycode()
948 return -EINVAL; in input_set_keycode()
950 spin_lock_irqsave(&dev->event_lock, flags); in input_set_keycode()
952 retval = dev->setkeycode(dev, ke, &old_keycode); in input_set_keycode()
957 __clear_bit(KEY_RESERVED, dev->keybit); in input_set_keycode()
961 * in the keymap anymore in input_set_keycode()
964 dev_warn(dev->dev.parent ?: &dev->dev, in input_set_keycode()
967 } else if (test_bit(EV_KEY, dev->evbit) && in input_set_keycode()
968 !is_event_supported(old_keycode, dev->keybit, KEY_MAX) && in input_set_keycode()
969 __test_and_clear_bit(old_keycode, dev->key)) { in input_set_keycode()
979 spin_unlock_irqrestore(&dev->event_lock, flags); in input_set_keycode()
988 if (id->flags & INPUT_DEVICE_ID_MATCH_BUS) in input_match_device_id()
989 if (id->bustype != dev->id.bustype) in input_match_device_id()
992 if (id->flags & INPUT_DEVICE_ID_MATCH_VENDOR) in input_match_device_id()
993 if (id->vendor != dev->id.vendor) in input_match_device_id()
996 if (id->flags & INPUT_DEVICE_ID_MATCH_PRODUCT) in input_match_device_id()
997 if (id->product != dev->id.product) in input_match_device_id()
1000 if (id->flags & INPUT_DEVICE_ID_MATCH_VERSION) in input_match_device_id()
1001 if (id->version != dev->id.version) in input_match_device_id()
1004 if (!bitmap_subset(id->evbit, dev->evbit, EV_MAX) || in input_match_device_id()
1005 !bitmap_subset(id->keybit, dev->keybit, KEY_MAX) || in input_match_device_id()
1006 !bitmap_subset(id->relbit, dev->relbit, REL_MAX) || in input_match_device_id()
1007 !bitmap_subset(id->absbit, dev->absbit, ABS_MAX) || in input_match_device_id()
1008 !bitmap_subset(id->mscbit, dev->mscbit, MSC_MAX) || in input_match_device_id()
1009 !bitmap_subset(id->ledbit, dev->ledbit, LED_MAX) || in input_match_device_id()
1010 !bitmap_subset(id->sndbit, dev->sndbit, SND_MAX) || in input_match_device_id()
1011 !bitmap_subset(id->ffbit, dev->ffbit, FF_MAX) || in input_match_device_id()
1012 !bitmap_subset(id->swbit, dev->swbit, SW_MAX) || in input_match_device_id()
1013 !bitmap_subset(id->propbit, dev->propbit, INPUT_PROP_MAX)) { in input_match_device_id()
1026 for (id = handler->id_table; id->flags || id->driver_info; id++) { in input_match_device()
1028 (!handler->match || handler->match(handler, dev))) { in input_match_device()
1043 return -ENODEV; in input_attach_handler()
1045 error = handler->connect(handler, dev, id); in input_attach_handler()
1046 if (error && error != -ENODEV) in input_attach_handler()
1048 handler->name, kobject_name(&dev->dev.kobj), error); in input_attach_handler()
1067 len += snprintf(buf + len, max(buf_size - len, 0), in input_bits_to_string()
1103 if (file->f_version != input_devices_state) { in input_proc_devices_poll()
1104 file->f_version = input_devices_state; in input_proc_devices_poll()
1121 union input_seq_state *state = (union input_seq_state *)&seq->private; in input_devices_seq_start()
1124 /* We need to fit into seq->private pointer */ in input_devices_seq_start()
1125 BUILD_BUG_ON(sizeof(union input_seq_state) != sizeof(seq->private)); in input_devices_seq_start()
1129 state->mutex_acquired = false; in input_devices_seq_start()
1133 state->mutex_acquired = true; in input_devices_seq_start()
1145 union input_seq_state *state = (union input_seq_state *)&seq->private; in input_seq_stop()
1147 if (state->mutex_acquired) in input_seq_stop()
1160 for (i = BITS_TO_LONGS(max) - 1; i >= 0; i--) { in input_seq_print_bitmap()
1180 const char *path = kobject_get_path(&dev->dev.kobj, GFP_KERNEL); in input_devices_seq_show()
1184 dev->id.bustype, dev->id.vendor, dev->id.product, dev->id.version); in input_devices_seq_show()
1186 seq_printf(seq, "N: Name=\"%s\"\n", dev->name ? dev->name : ""); in input_devices_seq_show()
1187 seq_printf(seq, "P: Phys=%s\n", dev->phys ? dev->phys : ""); in input_devices_seq_show()
1189 seq_printf(seq, "U: Uniq=%s\n", dev->uniq ? dev->uniq : ""); in input_devices_seq_show()
1192 list_for_each_entry(handle, &dev->h_list, d_node) in input_devices_seq_show()
1193 seq_printf(seq, "%s ", handle->name); in input_devices_seq_show()
1196 input_seq_print_bitmap(seq, "PROP", dev->propbit, INPUT_PROP_MAX); in input_devices_seq_show()
1198 input_seq_print_bitmap(seq, "EV", dev->evbit, EV_MAX); in input_devices_seq_show()
1199 if (test_bit(EV_KEY, dev->evbit)) in input_devices_seq_show()
1200 input_seq_print_bitmap(seq, "KEY", dev->keybit, KEY_MAX); in input_devices_seq_show()
1201 if (test_bit(EV_REL, dev->evbit)) in input_devices_seq_show()
1202 input_seq_print_bitmap(seq, "REL", dev->relbit, REL_MAX); in input_devices_seq_show()
1203 if (test_bit(EV_ABS, dev->evbit)) in input_devices_seq_show()
1204 input_seq_print_bitmap(seq, "ABS", dev->absbit, ABS_MAX); in input_devices_seq_show()
1205 if (test_bit(EV_MSC, dev->evbit)) in input_devices_seq_show()
1206 input_seq_print_bitmap(seq, "MSC", dev->mscbit, MSC_MAX); in input_devices_seq_show()
1207 if (test_bit(EV_LED, dev->evbit)) in input_devices_seq_show()
1208 input_seq_print_bitmap(seq, "LED", dev->ledbit, LED_MAX); in input_devices_seq_show()
1209 if (test_bit(EV_SND, dev->evbit)) in input_devices_seq_show()
1210 input_seq_print_bitmap(seq, "SND", dev->sndbit, SND_MAX); in input_devices_seq_show()
1211 if (test_bit(EV_FF, dev->evbit)) in input_devices_seq_show()
1212 input_seq_print_bitmap(seq, "FF", dev->ffbit, FF_MAX); in input_devices_seq_show()
1213 if (test_bit(EV_SW, dev->evbit)) in input_devices_seq_show()
1214 input_seq_print_bitmap(seq, "SW", dev->swbit, SW_MAX); in input_devices_seq_show()
1244 union input_seq_state *state = (union input_seq_state *)&seq->private; in input_handlers_seq_start()
1247 /* We need to fit into seq->private pointer */ in input_handlers_seq_start()
1248 BUILD_BUG_ON(sizeof(union input_seq_state) != sizeof(seq->private)); in input_handlers_seq_start()
1252 state->mutex_acquired = false; in input_handlers_seq_start()
1256 state->mutex_acquired = true; in input_handlers_seq_start()
1257 state->pos = *pos; in input_handlers_seq_start()
1264 union input_seq_state *state = (union input_seq_state *)&seq->private; in input_handlers_seq_next()
1266 state->pos = *pos + 1; in input_handlers_seq_next()
1273 union input_seq_state *state = (union input_seq_state *)&seq->private; in input_handlers_seq_show()
1275 seq_printf(seq, "N: Number=%u Name=%s", state->pos, handler->name); in input_handlers_seq_show()
1276 if (handler->filter) in input_handlers_seq_show()
1278 if (handler->legacy_minors) in input_handlers_seq_show()
1279 seq_printf(seq, " Minor=%d", handler->minor); in input_handlers_seq_show()
1310 return -ENOMEM; in input_proc_init()
1326 return -ENOMEM; in input_proc_init()
1350 input_dev->name ? input_dev->name : ""); \
1367 len += snprintf(buf + len, max(size - len, 0), "%X,", i); in input_print_modalias_bits()
1377 "input:b%04Xv%04Xp%04Xe%04X-", in input_print_modalias()
1378 id->id.bustype, id->id.vendor, in input_print_modalias()
1379 id->id.product, id->id.version); in input_print_modalias()
1381 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1382 'e', id->evbit, 0, EV_MAX); in input_print_modalias()
1383 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1384 'k', id->keybit, KEY_MIN_INTERESTING, KEY_MAX); in input_print_modalias()
1385 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1386 'r', id->relbit, 0, REL_MAX); in input_print_modalias()
1387 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1388 'a', id->absbit, 0, ABS_MAX); in input_print_modalias()
1389 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1390 'm', id->mscbit, 0, MSC_MAX); in input_print_modalias()
1391 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1392 'l', id->ledbit, 0, LED_MAX); in input_print_modalias()
1393 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1394 's', id->sndbit, 0, SND_MAX); in input_print_modalias()
1395 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1396 'f', id->ffbit, 0, FF_MAX); in input_print_modalias()
1397 len += input_print_modalias_bits(buf + len, size - len, in input_print_modalias()
1398 'w', id->swbit, 0, SW_MAX); in input_print_modalias()
1401 len += snprintf(buf + len, max(size - len, 0), "\n"); in input_print_modalias()
1427 int len = input_print_bitmap(buf, PAGE_SIZE, input_dev->propbit, in input_dev_show_properties()
1452 return scnprintf(buf, PAGE_SIZE, "%04x\n", input_dev->id.name); \
1481 for (i = BITS_TO_LONGS(max) - 1; i >= 0; i--) { in input_print_bitmap()
1482 len += input_bits_to_string(buf + len, max(buf_size - len, 0), in input_print_bitmap()
1487 len += snprintf(buf + len, max(buf_size - len, 0), " "); in input_print_bitmap()
1498 len += snprintf(buf + len, max(buf_size - len, 0), "\n"); in input_print_bitmap()
1510 input_dev->bm##bit, ev##_MAX, \
1558 kfree(dev->poller); in input_dev_release()
1559 kfree(dev->absinfo); in input_dev_release()
1560 kfree(dev->vals); in input_dev_release()
1567 * Input uevent interface - loading event handlers based on
1576 return -ENOMEM; in input_add_uevent_bm_var()
1578 len = input_print_bitmap(&env->buf[env->buflen - 1], in input_add_uevent_bm_var()
1579 sizeof(env->buf) - env->buflen, in input_add_uevent_bm_var()
1581 if (len >= (sizeof(env->buf) - env->buflen)) in input_add_uevent_bm_var()
1582 return -ENOMEM; in input_add_uevent_bm_var()
1584 env->buflen += len; in input_add_uevent_bm_var()
1594 return -ENOMEM; in input_add_uevent_modalias_var()
1596 len = input_print_modalias(&env->buf[env->buflen - 1], in input_add_uevent_modalias_var()
1597 sizeof(env->buf) - env->buflen, in input_add_uevent_modalias_var()
1599 if (len >= (sizeof(env->buf) - env->buflen)) in input_add_uevent_modalias_var()
1600 return -ENOMEM; in input_add_uevent_modalias_var()
1602 env->buflen += len; in input_add_uevent_modalias_var()
1632 dev->id.bustype, dev->id.vendor, in input_dev_uevent()
1633 dev->id.product, dev->id.version); in input_dev_uevent()
1634 if (dev->name) in input_dev_uevent()
1635 INPUT_ADD_HOTPLUG_VAR("NAME=\"%s\"", dev->name); in input_dev_uevent()
1636 if (dev->phys) in input_dev_uevent()
1637 INPUT_ADD_HOTPLUG_VAR("PHYS=\"%s\"", dev->phys); in input_dev_uevent()
1638 if (dev->uniq) in input_dev_uevent()
1639 INPUT_ADD_HOTPLUG_VAR("UNIQ=\"%s\"", dev->uniq); in input_dev_uevent()
1641 INPUT_ADD_HOTPLUG_BM_VAR("PROP=", dev->propbit, INPUT_PROP_MAX); in input_dev_uevent()
1643 INPUT_ADD_HOTPLUG_BM_VAR("EV=", dev->evbit, EV_MAX); in input_dev_uevent()
1644 if (test_bit(EV_KEY, dev->evbit)) in input_dev_uevent()
1645 INPUT_ADD_HOTPLUG_BM_VAR("KEY=", dev->keybit, KEY_MAX); in input_dev_uevent()
1646 if (test_bit(EV_REL, dev->evbit)) in input_dev_uevent()
1647 INPUT_ADD_HOTPLUG_BM_VAR("REL=", dev->relbit, REL_MAX); in input_dev_uevent()
1648 if (test_bit(EV_ABS, dev->evbit)) in input_dev_uevent()
1649 INPUT_ADD_HOTPLUG_BM_VAR("ABS=", dev->absbit, ABS_MAX); in input_dev_uevent()
1650 if (test_bit(EV_MSC, dev->evbit)) in input_dev_uevent()
1651 INPUT_ADD_HOTPLUG_BM_VAR("MSC=", dev->mscbit, MSC_MAX); in input_dev_uevent()
1652 if (test_bit(EV_LED, dev->evbit)) in input_dev_uevent()
1653 INPUT_ADD_HOTPLUG_BM_VAR("LED=", dev->ledbit, LED_MAX); in input_dev_uevent()
1654 if (test_bit(EV_SND, dev->evbit)) in input_dev_uevent()
1655 INPUT_ADD_HOTPLUG_BM_VAR("SND=", dev->sndbit, SND_MAX); in input_dev_uevent()
1656 if (test_bit(EV_FF, dev->evbit)) in input_dev_uevent()
1657 INPUT_ADD_HOTPLUG_BM_VAR("FF=", dev->ffbit, FF_MAX); in input_dev_uevent()
1658 if (test_bit(EV_SW, dev->evbit)) in input_dev_uevent()
1659 INPUT_ADD_HOTPLUG_BM_VAR("SW=", dev->swbit, SW_MAX); in input_dev_uevent()
1671 if (!test_bit(EV_##type, dev->evbit)) \
1674 for_each_set_bit(i, dev->bits##bit, type##_CNT) { \
1675 active = test_bit(i, dev->bits); \
1679 dev->event(dev, EV_##type, i, on ? active : 0); \
1685 if (!dev->event) in input_dev_toggle()
1691 if (activate && test_bit(EV_REP, dev->evbit)) { in input_dev_toggle()
1692 dev->event(dev, EV_REP, REP_PERIOD, dev->rep[REP_PERIOD]); in input_dev_toggle()
1693 dev->event(dev, EV_REP, REP_DELAY, dev->rep[REP_DELAY]); in input_dev_toggle()
1698 * input_reset_device() - reset/restore the state of input device
1709 mutex_lock(&dev->mutex); in input_reset_device()
1710 spin_lock_irqsave(&dev->event_lock, flags); in input_reset_device()
1715 spin_unlock_irqrestore(&dev->event_lock, flags); in input_reset_device()
1716 mutex_unlock(&dev->mutex); in input_reset_device()
1725 spin_lock_irq(&input_dev->event_lock); in input_dev_suspend()
1736 spin_unlock_irq(&input_dev->event_lock); in input_dev_suspend()
1745 spin_lock_irq(&input_dev->event_lock); in input_dev_resume()
1750 spin_unlock_irq(&input_dev->event_lock); in input_dev_resume()
1759 spin_lock_irq(&input_dev->event_lock); in input_dev_freeze()
1767 spin_unlock_irq(&input_dev->event_lock); in input_dev_freeze()
1776 spin_lock_irq(&input_dev->event_lock); in input_dev_poweroff()
1781 spin_unlock_irq(&input_dev->event_lock); in input_dev_poweroff()
1816 * input_allocate_device - allocate memory for new input device
1826 static atomic_t input_no = ATOMIC_INIT(-1); in input_allocate_device()
1831 dev->dev.type = &input_dev_type; in input_allocate_device()
1832 dev->dev.class = &input_class; in input_allocate_device()
1833 device_initialize(&dev->dev); in input_allocate_device()
1834 mutex_init(&dev->mutex); in input_allocate_device()
1835 spin_lock_init(&dev->event_lock); in input_allocate_device()
1836 timer_setup(&dev->timer, NULL, 0); in input_allocate_device()
1837 INIT_LIST_HEAD(&dev->h_list); in input_allocate_device()
1838 INIT_LIST_HEAD(&dev->node); in input_allocate_device()
1840 dev_set_name(&dev->dev, "input%lu", in input_allocate_device()
1858 return devres->input == data; in devm_input_device_match()
1864 struct input_dev *input = devres->input; in devm_input_device_release()
1867 __func__, dev_name(&input->dev)); in devm_input_device_release()
1872 * devm_input_allocate_device - allocate managed input device
1905 input->dev.parent = dev; in devm_input_allocate_device()
1906 input->devres_managed = true; in devm_input_allocate_device()
1908 devres->input = input; in devm_input_allocate_device()
1916 * input_free_device - free memory occupied by input_dev structure
1932 if (dev->devres_managed) in input_free_device()
1933 WARN_ON(devres_destroy(dev->dev.parent, in input_free_device()
1943 * input_set_timestamp - set timestamp for input events
1958 dev->timestamp[INPUT_CLK_MONO] = timestamp; in input_set_timestamp()
1959 dev->timestamp[INPUT_CLK_REAL] = ktime_mono_to_real(timestamp); in input_set_timestamp()
1960 dev->timestamp[INPUT_CLK_BOOT] = ktime_mono_to_any(timestamp, in input_set_timestamp()
1966 * input_get_timestamp - get timestamp for input events
1969 * A valid timestamp is a timestamp of non-zero value.
1975 if (!ktime_compare(dev->timestamp[INPUT_CLK_MONO], invalid_timestamp)) in input_get_timestamp()
1978 return dev->timestamp; in input_get_timestamp()
1983 * input_set_capability - mark device as capable of a certain event
1989 * bitmap the function also adjusts dev->evbit.
2003 __set_bit(code, dev->keybit); in input_set_capability()
2007 __set_bit(code, dev->relbit); in input_set_capability()
2012 if (!dev->absinfo) in input_set_capability()
2015 __set_bit(code, dev->absbit); in input_set_capability()
2019 __set_bit(code, dev->mscbit); in input_set_capability()
2023 __set_bit(code, dev->swbit); in input_set_capability()
2027 __set_bit(code, dev->ledbit); in input_set_capability()
2031 __set_bit(code, dev->sndbit); in input_set_capability()
2035 __set_bit(code, dev->ffbit); in input_set_capability()
2048 __set_bit(type, dev->evbit); in input_set_capability()
2058 if (dev->mt) { in input_estimate_events_per_packet()
2059 mt_slots = dev->mt->num_slots; in input_estimate_events_per_packet()
2060 } else if (test_bit(ABS_MT_TRACKING_ID, dev->absbit)) { in input_estimate_events_per_packet()
2061 mt_slots = dev->absinfo[ABS_MT_TRACKING_ID].maximum - in input_estimate_events_per_packet()
2062 dev->absinfo[ABS_MT_TRACKING_ID].minimum + 1, in input_estimate_events_per_packet()
2064 } else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) { in input_estimate_events_per_packet()
2072 if (test_bit(EV_ABS, dev->evbit)) in input_estimate_events_per_packet()
2073 for_each_set_bit(i, dev->absbit, ABS_CNT) in input_estimate_events_per_packet()
2076 if (test_bit(EV_REL, dev->evbit)) in input_estimate_events_per_packet()
2077 events += bitmap_weight(dev->relbit, REL_CNT); in input_estimate_events_per_packet()
2087 if (!test_bit(EV_##type, dev->evbit)) \
2088 memset(dev->bits##bit, 0, \
2089 sizeof(dev->bits##bit)); \
2112 list_for_each_entry_safe(handle, next, &dev->h_list, d_node) in __input_unregister_device()
2113 handle->handler->disconnect(handle); in __input_unregister_device()
2114 WARN_ON(!list_empty(&dev->h_list)); in __input_unregister_device()
2116 del_timer_sync(&dev->timer); in __input_unregister_device()
2117 list_del_init(&dev->node); in __input_unregister_device()
2123 device_del(&dev->dev); in __input_unregister_device()
2129 struct input_dev *input = devres->input; in devm_input_device_unregister()
2132 __func__, dev_name(&input->dev)); in devm_input_device_unregister()
2137 * input_enable_softrepeat - enable software autorepeat
2146 dev->timer.function = input_repeat_key; in input_enable_softrepeat()
2147 dev->rep[REP_DELAY] = delay; in input_enable_softrepeat()
2148 dev->rep[REP_PERIOD] = period; in input_enable_softrepeat()
2153 * input_register_device - register device with input core
2168 * that tear down of managed input devices is internally a 2-step process:
2183 if (test_bit(EV_ABS, dev->evbit) && !dev->absinfo) { in input_register_device()
2184 dev_err(&dev->dev, in input_register_device()
2185 "Absolute device without dev->absinfo, refusing to register\n"); in input_register_device()
2186 return -EINVAL; in input_register_device()
2189 if (dev->devres_managed) { in input_register_device()
2193 return -ENOMEM; in input_register_device()
2195 devres->input = dev; in input_register_device()
2199 __set_bit(EV_SYN, dev->evbit); in input_register_device()
2202 __clear_bit(KEY_RESERVED, dev->keybit); in input_register_device()
2204 /* Make sure that bitmasks not mentioned in dev->evbit are clean. */ in input_register_device()
2208 if (dev->hint_events_per_packet < packet_size) in input_register_device()
2209 dev->hint_events_per_packet = packet_size; in input_register_device()
2211 dev->max_vals = dev->hint_events_per_packet + 2; in input_register_device()
2212 dev->vals = kcalloc(dev->max_vals, sizeof(*dev->vals), GFP_KERNEL); in input_register_device()
2213 if (!dev->vals) { in input_register_device()
2214 error = -ENOMEM; in input_register_device()
2219 * If delay and period are pre-set by the driver, then autorepeating in input_register_device()
2222 if (!dev->rep[REP_DELAY] && !dev->rep[REP_PERIOD]) in input_register_device()
2225 if (!dev->getkeycode) in input_register_device()
2226 dev->getkeycode = input_default_getkeycode; in input_register_device()
2228 if (!dev->setkeycode) in input_register_device()
2229 dev->setkeycode = input_default_setkeycode; in input_register_device()
2231 if (dev->poller) in input_register_device()
2232 input_dev_poller_finalize(dev->poller); in input_register_device()
2234 error = device_add(&dev->dev); in input_register_device()
2238 path = kobject_get_path(&dev->dev.kobj, GFP_KERNEL); in input_register_device()
2240 dev->name ? dev->name : "Unspecified device", in input_register_device()
2248 list_add_tail(&dev->node, &input_dev_list); in input_register_device()
2257 if (dev->devres_managed) { in input_register_device()
2258 dev_dbg(dev->dev.parent, "%s: registering %s with devres.\n", in input_register_device()
2259 __func__, dev_name(&dev->dev)); in input_register_device()
2260 devres_add(dev->dev.parent, devres); in input_register_device()
2265 device_del(&dev->dev); in input_register_device()
2267 kfree(dev->vals); in input_register_device()
2268 dev->vals = NULL; in input_register_device()
2276 * input_unregister_device - unregister previously registered device
2284 if (dev->devres_managed) { in input_unregister_device()
2285 WARN_ON(devres_destroy(dev->dev.parent, in input_unregister_device()
2302 * input_register_handler - register a new input handler
2318 INIT_LIST_HEAD(&handler->h_list); in input_register_handler()
2320 list_add_tail(&handler->node, &input_handler_list); in input_register_handler()
2333 * input_unregister_handler - unregisters an input handler
2345 list_for_each_entry_safe(handle, next, &handler->h_list, h_node) in input_unregister_handler()
2346 handler->disconnect(handle); in input_unregister_handler()
2347 WARN_ON(!list_empty(&handler->h_list)); in input_unregister_handler()
2349 list_del_init(&handler->node); in input_unregister_handler()
2358 * input_handler_for_each_handle - handle iterator
2361 * @fn: function to be called for each handle
2363 * Iterate over @bus's list of devices, and call @fn for each, passing
2364 * it @data and stop when @fn returns a non-zero value. The function is
2366 * contexts. The @fn callback is invoked from RCU critical section and
2370 int (*fn)(struct input_handle *, void *)) in input_handler_for_each_handle()
2377 list_for_each_entry_rcu(handle, &handler->h_list, h_node) { in input_handler_for_each_handle()
2378 retval = fn(handle, data); in input_handler_for_each_handle()
2390 * input_register_handle - register a new input handle
2402 struct input_handler *handler = handle->handler; in input_register_handle()
2403 struct input_dev *dev = handle->dev; in input_register_handle()
2407 * We take dev->mutex here to prevent race with in input_register_handle()
2410 error = mutex_lock_interruptible(&dev->mutex); in input_register_handle()
2418 if (handler->filter) in input_register_handle()
2419 list_add_rcu(&handle->d_node, &dev->h_list); in input_register_handle()
2421 list_add_tail_rcu(&handle->d_node, &dev->h_list); in input_register_handle()
2423 mutex_unlock(&dev->mutex); in input_register_handle()
2426 * Since we are supposed to be called from ->connect() in input_register_handle()
2427 * which is mutually exclusive with ->disconnect() in input_register_handle()
2431 list_add_tail_rcu(&handle->h_node, &handler->h_list); in input_register_handle()
2433 if (handler->start) in input_register_handle()
2434 handler->start(handle); in input_register_handle()
2441 * input_unregister_handle - unregister an input handle
2452 struct input_dev *dev = handle->dev; in input_unregister_handle()
2454 list_del_rcu(&handle->h_node); in input_unregister_handle()
2457 * Take dev->mutex to prevent race with input_release_device(). in input_unregister_handle()
2459 mutex_lock(&dev->mutex); in input_unregister_handle()
2460 list_del_rcu(&handle->d_node); in input_unregister_handle()
2461 mutex_unlock(&dev->mutex); in input_unregister_handle()
2468 * input_get_new_minor - allocates a new input minor number
2482 * This function should be called from input handler's ->connect() in input_get_new_minor()
2502 * input_free_minor - release previously allocated minor