Lines Matching +full:abs +full:- +full:fuzz
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"
67 static int input_defuzz_abs_event(int value, int old_val, int fuzz)
69 if (fuzz) {
70 if (value > (long)old_val - fuzz / 2 &&
71 value < (long)old_val + fuzz / 2)
74 if (value > (long)old_val - fuzz &&
75 value < (long)old_val + fuzz)
78 if (value > (long)old_val - fuzz * 2 &&
79 value < (long)old_val + fuzz * 2)
88 if (test_bit(EV_REP, dev->evbit) &&
89 dev->rep[REP_PERIOD] && dev->rep[REP_DELAY] &&
90 dev->timer.function) {
91 dev->repeat_key = code;
92 mod_timer(&dev->timer,
93 jiffies + msecs_to_jiffies(dev->rep[REP_DELAY]));
99 del_timer(&dev->timer);
105 * dev->event_lock held and interrupts disabled.
110 struct input_handler *handler = handle->handler;
114 if (handler->filter) {
116 if (handler->filter(handle, v->type, v->code, v->value))
122 count = end - vals;
128 if (handler->events)
129 handler->events(handle, vals, count);
130 else if (handler->event)
132 handler->event(handle, v->type, v->code, v->value);
140 * dev->event_lock held and interrupts disabled.
153 handle = rcu_dereference(dev->grab);
157 list_for_each_entry_rcu(handle, &dev->h_list, d_node)
158 if (handle->open) {
168 if (test_bit(EV_REP, dev->evbit) && test_bit(EV_KEY, dev->evbit)) {
170 if (v->type == EV_KEY && v->value != 2) {
171 if (v->value)
172 input_start_autorepeat(dev, v->code);
190 * dev->event_lock here to avoid racing with input_event
198 spin_lock_irqsave(&dev->event_lock, flags);
200 if (test_bit(dev->repeat_key, dev->key) &&
201 is_event_supported(dev->repeat_key, dev->keybit, KEY_MAX)) {
203 { EV_KEY, dev->repeat_key, 2 },
210 if (dev->rep[REP_PERIOD])
211 mod_timer(&dev->timer, jiffies +
212 msecs_to_jiffies(dev->rep[REP_PERIOD]));
215 spin_unlock_irqrestore(&dev->event_lock, flags);
228 struct input_mt *mt = dev->mt;
237 if (mt && *pval >= 0 && *pval < mt->num_slots)
238 mt->slot = *pval;
246 pold = &dev->absinfo[code].value;
248 pold = &mt->slots[mt->slot].abs[code - ABS_MT_FIRST];
251 * Bypass filtering for multi-touch events when
259 dev->absinfo[code].fuzz);
267 if (is_mt_event && mt && mt->slot != input_abs_get_val(dev, ABS_MT_SLOT)) {
268 input_abs_set_val(dev, ABS_MT_SLOT, mt->slot);
299 if (is_event_supported(code, dev->keybit, KEY_MAX)) {
301 /* auto-repeat bypasses state updates */
307 if (!!test_bit(code, dev->key) != !!value) {
309 __change_bit(code, dev->key);
316 if (is_event_supported(code, dev->swbit, SW_MAX) &&
317 !!test_bit(code, dev->sw) != !!value) {
319 __change_bit(code, dev->sw);
325 if (is_event_supported(code, dev->absbit, ABS_MAX))
331 if (is_event_supported(code, dev->relbit, REL_MAX) && value)
337 if (is_event_supported(code, dev->mscbit, MSC_MAX))
343 if (is_event_supported(code, dev->ledbit, LED_MAX) &&
344 !!test_bit(code, dev->led) != !!value) {
346 __change_bit(code, dev->led);
352 if (is_event_supported(code, dev->sndbit, SND_MAX)) {
354 if (!!test_bit(code, dev->snd) != !!value)
355 __change_bit(code, dev->snd);
361 if (code <= REP_MAX && value >= 0 && dev->rep[code] != value) {
362 dev->rep[code] = value;
389 if ((disposition & INPUT_PASS_TO_DEVICE) && dev->event)
390 dev->event(dev, type, code, value);
392 if (!dev->vals)
399 v = &dev->vals[dev->num_vals++];
400 v->type = EV_ABS;
401 v->code = ABS_MT_SLOT;
402 v->value = dev->mt->slot;
405 v = &dev->vals[dev->num_vals++];
406 v->type = type;
407 v->code = code;
408 v->value = value;
412 if (dev->num_vals >= 2)
413 input_pass_values(dev, dev->vals, dev->num_vals);
414 dev->num_vals = 0;
421 dev->timestamp[INPUT_CLK_MONO] = ktime_set(0, 0);
422 } else if (dev->num_vals >= dev->max_vals - 2) {
423 dev->vals[dev->num_vals++] = input_value_sync;
424 input_pass_values(dev, dev->vals, dev->num_vals);
425 dev->num_vals = 0;
431 * input_event() - report new input event
452 if (is_event_supported(type, dev->evbit, EV_MAX)) {
454 spin_lock_irqsave(&dev->event_lock, flags);
456 spin_unlock_irqrestore(&dev->event_lock, flags);
462 * input_inject_event() - send input event from input handler
475 struct input_dev *dev = handle->dev;
479 if (is_event_supported(type, dev->evbit, EV_MAX)) {
480 spin_lock_irqsave(&dev->event_lock, flags);
483 grab = rcu_dereference(dev->grab);
488 spin_unlock_irqrestore(&dev->event_lock, flags);
494 * input_alloc_absinfo - allocates array of input_absinfo structs
502 if (dev->absinfo)
505 dev->absinfo = kcalloc(ABS_CNT, sizeof(*dev->absinfo), GFP_KERNEL);
506 if (!dev->absinfo) {
507 dev_err(dev->dev.parent ?: &dev->dev,
512 * device with ABS bits but without absinfo.
519 int min, int max, int fuzz, int flat)
524 if (!dev->absinfo)
527 absinfo = &dev->absinfo[axis];
528 absinfo->minimum = min;
529 absinfo->maximum = max;
530 absinfo->fuzz = fuzz;
531 absinfo->flat = flat;
533 __set_bit(EV_ABS, dev->evbit);
534 __set_bit(axis, dev->absbit);
540 * input_grab_device - grabs device for exclusive use
549 struct input_dev *dev = handle->dev;
552 retval = mutex_lock_interruptible(&dev->mutex);
556 if (dev->grab) {
557 retval = -EBUSY;
561 rcu_assign_pointer(dev->grab, handle);
564 mutex_unlock(&dev->mutex);
571 struct input_dev *dev = handle->dev;
574 grabber = rcu_dereference_protected(dev->grab,
575 lockdep_is_held(&dev->mutex));
577 rcu_assign_pointer(dev->grab, NULL);
581 list_for_each_entry(handle, &dev->h_list, d_node)
582 if (handle->open && handle->handler->start)
583 handle->handler->start(handle);
588 * input_release_device - release previously grabbed device
598 struct input_dev *dev = handle->dev;
600 mutex_lock(&dev->mutex);
602 mutex_unlock(&dev->mutex);
607 * input_open_device - open input device
615 struct input_dev *dev = handle->dev;
618 retval = mutex_lock_interruptible(&dev->mutex);
622 if (dev->going_away) {
623 retval = -ENODEV;
627 handle->open++;
629 if (dev->users++) {
637 if (dev->open) {
638 retval = dev->open(dev);
640 dev->users--;
641 handle->open--;
651 if (dev->poller)
652 input_dev_poller_start(dev->poller);
655 mutex_unlock(&dev->mutex);
662 struct input_dev *dev = handle->dev;
665 retval = mutex_lock_interruptible(&dev->mutex);
669 if (dev->flush)
670 retval = dev->flush(dev, file);
672 mutex_unlock(&dev->mutex);
678 * input_close_device - close input device
686 struct input_dev *dev = handle->dev;
688 mutex_lock(&dev->mutex);
692 if (!--dev->users) {
693 if (dev->poller)
694 input_dev_poller_stop(dev->poller);
696 if (dev->close)
697 dev->close(dev);
700 if (!--handle->open) {
709 mutex_unlock(&dev->mutex);
715 * The function must be called with dev->event_lock held.
722 if (is_event_supported(EV_KEY, dev->evbit, EV_MAX)) {
723 for_each_set_bit(code, dev->key, KEY_CNT) {
731 memset(dev->key, 0, sizeof(dev->key));
743 * Mark device as going away. Note that we take dev->mutex here
744 * not to protect access to dev->going_away but rather to ensure
747 mutex_lock(&dev->mutex);
748 dev->going_away = true;
749 mutex_unlock(&dev->mutex);
751 spin_lock_irq(&dev->event_lock);
761 list_for_each_entry(handle, &dev->h_list, d_node)
762 handle->open = 0;
764 spin_unlock_irq(&dev->event_lock);
768 * input_scancode_to_scalar() - converts scancode in &struct input_keymap_entry
780 switch (ke->len) {
782 *scancode = *((u8 *)ke->scancode);
786 *scancode = *((u16 *)ke->scancode);
790 *scancode = *((u32 *)ke->scancode);
794 return -EINVAL;
809 switch (dev->keycodesize) {
811 return ((u8 *)dev->keycode)[index];
814 return ((u16 *)dev->keycode)[index];
817 return ((u32 *)dev->keycode)[index];
827 if (!dev->keycodesize)
828 return -EINVAL;
830 if (ke->flags & INPUT_KEYMAP_BY_INDEX)
831 index = ke->index;
838 if (index >= dev->keycodemax)
839 return -EINVAL;
841 ke->keycode = input_fetch_keycode(dev, index);
842 ke->index = index;
843 ke->len = sizeof(index);
844 memcpy(ke->scancode, &index, sizeof(index));
857 if (!dev->keycodesize)
858 return -EINVAL;
860 if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
861 index = ke->index;
868 if (index >= dev->keycodemax)
869 return -EINVAL;
871 if (dev->keycodesize < sizeof(ke->keycode) &&
872 (ke->keycode >> (dev->keycodesize * 8)))
873 return -EINVAL;
875 switch (dev->keycodesize) {
877 u8 *k = (u8 *)dev->keycode;
879 k[index] = ke->keycode;
883 u16 *k = (u16 *)dev->keycode;
885 k[index] = ke->keycode;
889 u32 *k = (u32 *)dev->keycode;
891 k[index] = ke->keycode;
897 __clear_bit(*old_keycode, dev->keybit);
898 for (i = 0; i < dev->keycodemax; i++) {
900 __set_bit(*old_keycode, dev->keybit);
907 __set_bit(ke->keycode, dev->keybit);
912 * input_get_keycode - retrieve keycode currently mapped to a given scancode
924 spin_lock_irqsave(&dev->event_lock, flags);
925 retval = dev->getkeycode(dev, ke);
926 spin_unlock_irqrestore(&dev->event_lock, flags);
933 * input_set_keycode - attribute a keycode to a given scancode
947 if (ke->keycode > KEY_MAX)
948 return -EINVAL;
950 spin_lock_irqsave(&dev->event_lock, flags);
952 retval = dev->setkeycode(dev, ke, &old_keycode);
957 __clear_bit(KEY_RESERVED, dev->keybit);
964 dev_warn(dev->dev.parent ?: &dev->dev,
967 } else if (test_bit(EV_KEY, dev->evbit) &&
968 !is_event_supported(old_keycode, dev->keybit, KEY_MAX) &&
969 __test_and_clear_bit(old_keycode, dev->key)) {
979 spin_unlock_irqrestore(&dev->event_lock, flags);
988 if (id->flags & INPUT_DEVICE_ID_MATCH_BUS)
989 if (id->bustype != dev->id.bustype)
992 if (id->flags & INPUT_DEVICE_ID_MATCH_VENDOR)
993 if (id->vendor != dev->id.vendor)
996 if (id->flags & INPUT_DEVICE_ID_MATCH_PRODUCT)
997 if (id->product != dev->id.product)
1000 if (id->flags & INPUT_DEVICE_ID_MATCH_VERSION)
1001 if (id->version != dev->id.version)
1004 if (!bitmap_subset(id->evbit, dev->evbit, EV_MAX) ||
1005 !bitmap_subset(id->keybit, dev->keybit, KEY_MAX) ||
1006 !bitmap_subset(id->relbit, dev->relbit, REL_MAX) ||
1007 !bitmap_subset(id->absbit, dev->absbit, ABS_MAX) ||
1008 !bitmap_subset(id->mscbit, dev->mscbit, MSC_MAX) ||
1009 !bitmap_subset(id->ledbit, dev->ledbit, LED_MAX) ||
1010 !bitmap_subset(id->sndbit, dev->sndbit, SND_MAX) ||
1011 !bitmap_subset(id->ffbit, dev->ffbit, FF_MAX) ||
1012 !bitmap_subset(id->swbit, dev->swbit, SW_MAX) ||
1013 !bitmap_subset(id->propbit, dev->propbit, INPUT_PROP_MAX)) {
1026 for (id = handler->id_table; id->flags || id->driver_info; id++) {
1028 (!handler->match || handler->match(handler, dev))) {
1043 return -ENODEV;
1045 error = handler->connect(handler, dev, id);
1046 if (error && error != -ENODEV)
1048 handler->name, kobject_name(&dev->dev.kobj), error);
1067 len += snprintf(buf + len, max(buf_size - len, 0),
1103 if (file->f_version != input_devices_state) {
1104 file->f_version = input_devices_state;
1121 union input_seq_state *state = (union input_seq_state *)&seq->private;
1124 /* We need to fit into seq->private pointer */
1125 BUILD_BUG_ON(sizeof(union input_seq_state) != sizeof(seq->private));
1129 state->mutex_acquired = false;
1133 state->mutex_acquired = true;
1145 union input_seq_state *state = (union input_seq_state *)&seq->private;
1147 if (state->mutex_acquired)
1160 for (i = BITS_TO_LONGS(max) - 1; i >= 0; i--) {
1180 const char *path = kobject_get_path(&dev->dev.kobj, GFP_KERNEL);
1184 dev->id.bustype, dev->id.vendor, dev->id.product, dev->id.version);
1186 seq_printf(seq, "N: Name=\"%s\"\n", dev->name ? dev->name : "");
1187 seq_printf(seq, "P: Phys=%s\n", dev->phys ? dev->phys : "");
1189 seq_printf(seq, "U: Uniq=%s\n", dev->uniq ? dev->uniq : "");
1192 list_for_each_entry(handle, &dev->h_list, d_node)
1193 seq_printf(seq, "%s ", handle->name);
1196 input_seq_print_bitmap(seq, "PROP", dev->propbit, INPUT_PROP_MAX);
1198 input_seq_print_bitmap(seq, "EV", dev->evbit, EV_MAX);
1199 if (test_bit(EV_KEY, dev->evbit))
1200 input_seq_print_bitmap(seq, "KEY", dev->keybit, KEY_MAX);
1201 if (test_bit(EV_REL, dev->evbit))
1202 input_seq_print_bitmap(seq, "REL", dev->relbit, REL_MAX);
1203 if (test_bit(EV_ABS, dev->evbit))
1204 input_seq_print_bitmap(seq, "ABS", dev->absbit, ABS_MAX);
1205 if (test_bit(EV_MSC, dev->evbit))
1206 input_seq_print_bitmap(seq, "MSC", dev->mscbit, MSC_MAX);
1207 if (test_bit(EV_LED, dev->evbit))
1208 input_seq_print_bitmap(seq, "LED", dev->ledbit, LED_MAX);
1209 if (test_bit(EV_SND, dev->evbit))
1210 input_seq_print_bitmap(seq, "SND", dev->sndbit, SND_MAX);
1211 if (test_bit(EV_FF, dev->evbit))
1212 input_seq_print_bitmap(seq, "FF", dev->ffbit, FF_MAX);
1213 if (test_bit(EV_SW, dev->evbit))
1214 input_seq_print_bitmap(seq, "SW", dev->swbit, SW_MAX);
1244 union input_seq_state *state = (union input_seq_state *)&seq->private;
1247 /* We need to fit into seq->private pointer */
1248 BUILD_BUG_ON(sizeof(union input_seq_state) != sizeof(seq->private));
1252 state->mutex_acquired = false;
1256 state->mutex_acquired = true;
1257 state->pos = *pos;
1264 union input_seq_state *state = (union input_seq_state *)&seq->private;
1266 state->pos = *pos + 1;
1273 union input_seq_state *state = (union input_seq_state *)&seq->private;
1275 seq_printf(seq, "N: Number=%u Name=%s", state->pos, handler->name);
1276 if (handler->filter)
1278 if (handler->legacy_minors)
1279 seq_printf(seq, " Minor=%d", handler->minor);
1310 return -ENOMEM;
1326 return -ENOMEM;
1350 input_dev->name ? input_dev->name : ""); \
1367 len += snprintf(buf + len, max(size - len, 0), "%X,", i);
1377 "input:b%04Xv%04Xp%04Xe%04X-",
1378 id->id.bustype, id->id.vendor,
1379 id->id.product, id->id.version);
1381 len += input_print_modalias_bits(buf + len, size - len,
1382 'e', id->evbit, 0, EV_MAX);
1383 len += input_print_modalias_bits(buf + len, size - len,
1384 'k', id->keybit, KEY_MIN_INTERESTING, KEY_MAX);
1385 len += input_print_modalias_bits(buf + len, size - len,
1386 'r', id->relbit, 0, REL_MAX);
1387 len += input_print_modalias_bits(buf + len, size - len,
1388 'a', id->absbit, 0, ABS_MAX);
1389 len += input_print_modalias_bits(buf + len, size - len,
1390 'm', id->mscbit, 0, MSC_MAX);
1391 len += input_print_modalias_bits(buf + len, size - len,
1392 'l', id->ledbit, 0, LED_MAX);
1393 len += input_print_modalias_bits(buf + len, size - len,
1394 's', id->sndbit, 0, SND_MAX);
1395 len += input_print_modalias_bits(buf + len, size - len,
1396 'f', id->ffbit, 0, FF_MAX);
1397 len += input_print_modalias_bits(buf + len, size - len,
1398 'w', id->swbit, 0, SW_MAX);
1401 len += snprintf(buf + len, max(size - len, 0), "\n");
1427 int len = input_print_bitmap(buf, PAGE_SIZE, input_dev->propbit,
1452 return scnprintf(buf, PAGE_SIZE, "%04x\n", input_dev->id.name); \
1481 for (i = BITS_TO_LONGS(max) - 1; i >= 0; i--) {
1482 len += input_bits_to_string(buf + len, max(buf_size - len, 0),
1487 len += snprintf(buf + len, max(buf_size - len, 0), " ");
1498 len += snprintf(buf + len, max(buf_size - len, 0), "\n");
1510 input_dev->bm##bit, ev##_MAX, \
1519 INPUT_DEV_CAP_ATTR(ABS, abs);
1558 kfree(dev->poller);
1559 kfree(dev->absinfo);
1560 kfree(dev->vals);
1567 * Input uevent interface - loading event handlers based on
1576 return -ENOMEM;
1578 len = input_print_bitmap(&env->buf[env->buflen - 1],
1579 sizeof(env->buf) - env->buflen,
1581 if (len >= (sizeof(env->buf) - env->buflen))
1582 return -ENOMEM;
1584 env->buflen += len;
1594 return -ENOMEM;
1596 len = input_print_modalias(&env->buf[env->buflen - 1],
1597 sizeof(env->buf) - env->buflen,
1599 if (len >= (sizeof(env->buf) - env->buflen))
1600 return -ENOMEM;
1602 env->buflen += len;
1632 dev->id.bustype, dev->id.vendor,
1633 dev->id.product, dev->id.version);
1634 if (dev->name)
1635 INPUT_ADD_HOTPLUG_VAR("NAME=\"%s\"", dev->name);
1636 if (dev->phys)
1637 INPUT_ADD_HOTPLUG_VAR("PHYS=\"%s\"", dev->phys);
1638 if (dev->uniq)
1639 INPUT_ADD_HOTPLUG_VAR("UNIQ=\"%s\"", dev->uniq);
1641 INPUT_ADD_HOTPLUG_BM_VAR("PROP=", dev->propbit, INPUT_PROP_MAX);
1643 INPUT_ADD_HOTPLUG_BM_VAR("EV=", dev->evbit, EV_MAX);
1644 if (test_bit(EV_KEY, dev->evbit))
1645 INPUT_ADD_HOTPLUG_BM_VAR("KEY=", dev->keybit, KEY_MAX);
1646 if (test_bit(EV_REL, dev->evbit))
1647 INPUT_ADD_HOTPLUG_BM_VAR("REL=", dev->relbit, REL_MAX);
1648 if (test_bit(EV_ABS, dev->evbit))
1649 INPUT_ADD_HOTPLUG_BM_VAR("ABS=", dev->absbit, ABS_MAX);
1650 if (test_bit(EV_MSC, dev->evbit))
1651 INPUT_ADD_HOTPLUG_BM_VAR("MSC=", dev->mscbit, MSC_MAX);
1652 if (test_bit(EV_LED, dev->evbit))
1653 INPUT_ADD_HOTPLUG_BM_VAR("LED=", dev->ledbit, LED_MAX);
1654 if (test_bit(EV_SND, dev->evbit))
1655 INPUT_ADD_HOTPLUG_BM_VAR("SND=", dev->sndbit, SND_MAX);
1656 if (test_bit(EV_FF, dev->evbit))
1657 INPUT_ADD_HOTPLUG_BM_VAR("FF=", dev->ffbit, FF_MAX);
1658 if (test_bit(EV_SW, dev->evbit))
1659 INPUT_ADD_HOTPLUG_BM_VAR("SW=", dev->swbit, SW_MAX);
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)
1691 if (activate && test_bit(EV_REP, dev->evbit)) {
1692 dev->event(dev, EV_REP, REP_PERIOD, dev->rep[REP_PERIOD]);
1693 dev->event(dev, EV_REP, REP_DELAY, dev->rep[REP_DELAY]);
1698 * input_reset_device() - reset/restore the state of input device
1709 mutex_lock(&dev->mutex);
1710 spin_lock_irqsave(&dev->event_lock, flags);
1715 spin_unlock_irqrestore(&dev->event_lock, flags);
1716 mutex_unlock(&dev->mutex);
1725 spin_lock_irq(&input_dev->event_lock);
1736 spin_unlock_irq(&input_dev->event_lock);
1745 spin_lock_irq(&input_dev->event_lock);
1750 spin_unlock_irq(&input_dev->event_lock);
1759 spin_lock_irq(&input_dev->event_lock);
1767 spin_unlock_irq(&input_dev->event_lock);
1776 spin_lock_irq(&input_dev->event_lock);
1781 spin_unlock_irq(&input_dev->event_lock);
1816 * input_allocate_device - allocate memory for new input device
1826 static atomic_t input_no = ATOMIC_INIT(-1);
1831 dev->dev.type = &input_dev_type;
1832 dev->dev.class = &input_class;
1833 device_initialize(&dev->dev);
1834 mutex_init(&dev->mutex);
1835 spin_lock_init(&dev->event_lock);
1836 timer_setup(&dev->timer, NULL, 0);
1837 INIT_LIST_HEAD(&dev->h_list);
1838 INIT_LIST_HEAD(&dev->node);
1840 dev_set_name(&dev->dev, "input%lu",
1858 return devres->input == data;
1864 struct input_dev *input = devres->input;
1867 __func__, dev_name(&input->dev));
1872 * devm_input_allocate_device - allocate managed input device
1905 input->dev.parent = dev;
1906 input->devres_managed = true;
1908 devres->input = input;
1916 * input_free_device - free memory occupied by input_dev structure
1932 if (dev->devres_managed)
1933 WARN_ON(devres_destroy(dev->dev.parent,
1943 * input_set_timestamp - set timestamp for input events
1958 dev->timestamp[INPUT_CLK_MONO] = timestamp;
1959 dev->timestamp[INPUT_CLK_REAL] = ktime_mono_to_real(timestamp);
1960 dev->timestamp[INPUT_CLK_BOOT] = ktime_mono_to_any(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))
1978 return dev->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);
2007 __set_bit(code, dev->relbit);
2012 if (!dev->absinfo)
2015 __set_bit(code, dev->absbit);
2019 __set_bit(code, dev->mscbit);
2023 __set_bit(code, dev->swbit);
2027 __set_bit(code, dev->ledbit);
2031 __set_bit(code, dev->sndbit);
2035 __set_bit(code, dev->ffbit);
2048 __set_bit(type, dev->evbit);
2058 if (dev->mt) {
2059 mt_slots = dev->mt->num_slots;
2060 } else if (test_bit(ABS_MT_TRACKING_ID, dev->absbit)) {
2061 mt_slots = dev->absinfo[ABS_MT_TRACKING_ID].maximum -
2062 dev->absinfo[ABS_MT_TRACKING_ID].minimum + 1,
2064 } else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) {
2072 if (test_bit(EV_ABS, dev->evbit))
2073 for_each_set_bit(i, dev->absbit, ABS_CNT)
2076 if (test_bit(EV_REL, dev->evbit))
2077 events += bitmap_weight(dev->relbit, REL_CNT);
2087 if (!test_bit(EV_##type, dev->evbit)) \
2088 memset(dev->bits##bit, 0, \
2089 sizeof(dev->bits##bit)); \
2096 INPUT_CLEANSE_BITMASK(dev, ABS, abs);
2112 list_for_each_entry_safe(handle, next, &dev->h_list, d_node)
2113 handle->handler->disconnect(handle);
2114 WARN_ON(!list_empty(&dev->h_list));
2116 del_timer_sync(&dev->timer);
2117 list_del_init(&dev->node);
2123 device_del(&dev->dev);
2129 struct input_dev *input = devres->input;
2132 __func__, dev_name(&input->dev));
2137 * input_enable_softrepeat - enable software autorepeat
2146 dev->timer.function = input_repeat_key;
2147 dev->rep[REP_DELAY] = delay;
2148 dev->rep[REP_PERIOD] = period;
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) {
2184 dev_err(&dev->dev,
2185 "Absolute device without dev->absinfo, refusing to register\n");
2186 return -EINVAL;
2189 if (dev->devres_managed) {
2193 return -ENOMEM;
2195 devres->input = dev;
2199 __set_bit(EV_SYN, dev->evbit);
2202 __clear_bit(KEY_RESERVED, dev->keybit);
2204 /* Make sure that bitmasks not mentioned in dev->evbit are clean. */
2208 if (dev->hint_events_per_packet < packet_size)
2209 dev->hint_events_per_packet = packet_size;
2211 dev->max_vals = dev->hint_events_per_packet + 2;
2212 dev->vals = kcalloc(dev->max_vals, sizeof(*dev->vals), GFP_KERNEL);
2213 if (!dev->vals) {
2214 error = -ENOMEM;
2219 * If delay and period are pre-set by the driver, then autorepeating
2222 if (!dev->rep[REP_DELAY] && !dev->rep[REP_PERIOD])
2225 if (!dev->getkeycode)
2226 dev->getkeycode = input_default_getkeycode;
2228 if (!dev->setkeycode)
2229 dev->setkeycode = input_default_setkeycode;
2231 if (dev->poller)
2232 input_dev_poller_finalize(dev->poller);
2234 error = device_add(&dev->dev);
2238 path = kobject_get_path(&dev->dev.kobj, GFP_KERNEL);
2240 dev->name ? dev->name : "Unspecified device",
2248 list_add_tail(&dev->node, &input_dev_list);
2257 if (dev->devres_managed) {
2258 dev_dbg(dev->dev.parent, "%s: registering %s with devres.\n",
2259 __func__, dev_name(&dev->dev));
2260 devres_add(dev->dev.parent, devres);
2265 device_del(&dev->dev);
2267 kfree(dev->vals);
2268 dev->vals = NULL;
2276 * input_unregister_device - unregister previously registered device
2284 if (dev->devres_managed) {
2285 WARN_ON(devres_destroy(dev->dev.parent,
2302 * input_register_handler - register a new input handler
2318 INIT_LIST_HEAD(&handler->h_list);
2320 list_add_tail(&handler->node, &input_handler_list);
2333 * input_unregister_handler - unregisters an input handler
2345 list_for_each_entry_safe(handle, next, &handler->h_list, h_node)
2346 handler->disconnect(handle);
2347 WARN_ON(!list_empty(&handler->h_list));
2349 list_del_init(&handler->node);
2358 * input_handler_for_each_handle - handle iterator
2364 * it @data and stop when @fn returns a non-zero value. The function is
2377 list_for_each_entry_rcu(handle, &handler->h_list, h_node) {
2390 * input_register_handle - register a new input handle
2402 struct input_handler *handler = handle->handler;
2403 struct input_dev *dev = handle->dev;
2407 * We take dev->mutex here to prevent race with
2410 error = mutex_lock_interruptible(&dev->mutex);
2418 if (handler->filter)
2419 list_add_rcu(&handle->d_node, &dev->h_list);
2421 list_add_tail_rcu(&handle->d_node, &dev->h_list);
2423 mutex_unlock(&dev->mutex);
2426 * Since we are supposed to be called from ->connect()
2427 * which is mutually exclusive with ->disconnect()
2431 list_add_tail_rcu(&handle->h_node, &handler->h_list);
2433 if (handler->start)
2434 handler->start(handle);
2441 * input_unregister_handle - unregister an input handle
2452 struct input_dev *dev = handle->dev;
2454 list_del_rcu(&handle->h_node);
2457 * Take dev->mutex to prevent race with input_release_device().
2459 mutex_lock(&dev->mutex);
2460 list_del_rcu(&handle->d_node);
2461 mutex_unlock(&dev->mutex);
2468 * input_get_new_minor - allocates a new input minor number
2482 * This function should be called from input handler's ->connect()
2502 * input_free_minor - release previously allocated minor