Index: head/sys/dev/evdev/evdev.c =================================================================== --- head/sys/dev/evdev/evdev.c (revision 306854) +++ head/sys/dev/evdev/evdev.c (revision 306855) @@ -1,921 +1,947 @@ /*- * Copyright (c) 2014 Jakub Wojciech Klama * Copyright (c) 2015-2016 Vladimir Kondratyev * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #include "opt_evdev.h" #include #include #include #include #include #include #include #include #include #include #include #include #ifdef EVDEV_DEBUG #define debugf(evdev, fmt, args...) printf("evdev: " fmt "\n", ##args) #else #define debugf(evdev, fmt, args...) #endif #ifdef FEATURE FEATURE(evdev, "Input event devices support"); #endif enum evdev_sparse_result { EV_SKIP_EVENT, /* Event value not changed */ EV_REPORT_EVENT, /* Event value changed */ EV_REPORT_MT_SLOT, /* Event value and MT slot number changed */ }; MALLOC_DEFINE(M_EVDEV, "evdev", "evdev memory"); int evdev_rcpt_mask = EVDEV_RCPT_SYSMOUSE | EVDEV_RCPT_KBDMUX; SYSCTL_NODE(_kern, OID_AUTO, evdev, CTLFLAG_RW, 0, "Evdev args"); SYSCTL_INT(_kern_evdev, OID_AUTO, rcpt_mask, CTLFLAG_RW, &evdev_rcpt_mask, 0, "Who is receiving events: bit0 - sysmouse, bit1 - kbdmux, " "bit2 - mouse hardware, bit3 - keyboard hardware"); static void evdev_start_repeat(struct evdev_dev *, uint16_t); static void evdev_stop_repeat(struct evdev_dev *); static int evdev_check_event(struct evdev_dev *, uint16_t, uint16_t, int32_t); static inline void bit_change(bitstr_t *bitstr, int bit, int value) { if (value) bit_set(bitstr, bit); else bit_clear(bitstr, bit); } struct evdev_dev * evdev_alloc(void) { return malloc(sizeof(struct evdev_dev), M_EVDEV, M_WAITOK | M_ZERO); } void evdev_free(struct evdev_dev *evdev) { if (evdev != NULL && evdev->ev_cdev != NULL && evdev->ev_cdev->si_drv1 != NULL) evdev_unregister(evdev); free(evdev, M_EVDEV); } static struct input_absinfo * evdev_alloc_absinfo(void) { return (malloc(sizeof(struct input_absinfo) * ABS_CNT, M_EVDEV, M_WAITOK | M_ZERO)); } static void evdev_free_absinfo(struct input_absinfo *absinfo) { free(absinfo, M_EVDEV); } int evdev_set_report_size(struct evdev_dev *evdev, size_t report_size) { if (report_size > KEY_CNT + REL_CNT + ABS_CNT + MAX_MT_SLOTS * MT_CNT + MSC_CNT + LED_CNT + SND_CNT + SW_CNT + FF_CNT) return (EINVAL); evdev->ev_report_size = report_size; return (0); } static size_t evdev_estimate_report_size(struct evdev_dev *evdev) { size_t size = 0; int res; /* * Keyboards generate one event per report but other devices with * buttons like mouses can report events simultaneously */ bit_ffs_at(evdev->ev_key_flags, KEY_OK, KEY_CNT - KEY_OK, &res); if (res == -1) bit_ffs(evdev->ev_key_flags, BTN_MISC, &res); size += (res != -1); bit_count(evdev->ev_key_flags, BTN_MISC, KEY_OK - BTN_MISC, &res); size += res; /* All relative axes can be reported simultaneously */ bit_count(evdev->ev_rel_flags, 0, REL_CNT, &res); size += res; /* * All absolute axes can be reported simultaneously. * Multitouch axes can be reported ABS_MT_SLOT times */ if (evdev->ev_absinfo != NULL) { bit_count(evdev->ev_abs_flags, 0, ABS_CNT, &res); size += res; bit_count(evdev->ev_abs_flags, ABS_MT_FIRST, MT_CNT, &res); if (res > 0) { res++; /* ABS_MT_SLOT or SYN_MT_REPORT */ if (bit_test(evdev->ev_abs_flags, ABS_MT_SLOT)) /* MT type B */ size += res * MAXIMAL_MT_SLOT(evdev); else /* MT type A */ size += res * (MAX_MT_REPORTS - 1); } } /* All misc events can be reported simultaneously */ bit_count(evdev->ev_msc_flags, 0, MSC_CNT, &res); size += res; /* All leds can be reported simultaneously */ bit_count(evdev->ev_led_flags, 0, LED_CNT, &res); size += res; /* Assume other events are generated once per report */ bit_ffs(evdev->ev_snd_flags, SND_CNT, &res); size += (res != -1); bit_ffs(evdev->ev_sw_flags, SW_CNT, &res); size += (res != -1); /* XXX: FF part is not implemented yet */ size++; /* SYN_REPORT */ return (size); } -int -evdev_register(struct evdev_dev *evdev) +static int +evdev_register_common(struct evdev_dev *evdev) { int ret; debugf(evdev, "%s: registered evdev provider: %s <%s>\n", evdev->ev_shortname, evdev->ev_name, evdev->ev_serial); /* Initialize internal structures */ - mtx_init(&evdev->ev_mtx, "evmtx", NULL, MTX_DEF); LIST_INIT(&evdev->ev_clients); if (evdev_event_supported(evdev, EV_REP) && bit_test(evdev->ev_flags, EVDEV_FLAG_SOFTREPEAT)) { /* Initialize callout */ callout_init_mtx(&evdev->ev_rep_callout, &evdev->ev_mtx, 0); if (evdev->ev_rep[REP_DELAY] == 0 && evdev->ev_rep[REP_PERIOD] == 0) { /* Supply default values */ evdev->ev_rep[REP_DELAY] = 250; evdev->ev_rep[REP_PERIOD] = 33; } } /* Initialize multitouch protocol type B states */ if (bit_test(evdev->ev_abs_flags, ABS_MT_SLOT) && evdev->ev_absinfo != NULL && MAXIMAL_MT_SLOT(evdev) > 0) evdev_mt_init(evdev); /* Estimate maximum report size */ if (evdev->ev_report_size == 0) { ret = evdev_set_report_size(evdev, evdev_estimate_report_size(evdev)); if (ret != 0) goto bail_out; } /* Create char device node */ ret = evdev_cdev_create(evdev); bail_out: + return (ret); +} + +int +evdev_register(struct evdev_dev *evdev) +{ + int ret; + + evdev->ev_lock_type = EV_LOCK_INTERNAL; + evdev->ev_lock = &evdev->ev_mtx; + mtx_init(&evdev->ev_mtx, "evmtx", NULL, MTX_DEF); + + ret = evdev_register_common(evdev); if (ret != 0) mtx_destroy(&evdev->ev_mtx); return (ret); } int +evdev_register_mtx(struct evdev_dev *evdev, struct mtx *mtx) +{ + + evdev->ev_lock_type = EV_LOCK_MTX; + evdev->ev_lock = mtx; + return (evdev_register_common(evdev)); +} + +int evdev_unregister(struct evdev_dev *evdev) { struct evdev_client *client; int ret; debugf(evdev, "%s: unregistered evdev provider: %s\n", evdev->ev_shortname, evdev->ev_name); EVDEV_LOCK(evdev); evdev->ev_cdev->si_drv1 = NULL; /* Wake up sleepers */ LIST_FOREACH(client, &evdev->ev_clients, ec_link) { evdev_revoke_client(client); evdev_dispose_client(evdev, client); EVDEV_CLIENT_LOCKQ(client); evdev_notify_event(client); EVDEV_CLIENT_UNLOCKQ(client); } EVDEV_UNLOCK(evdev); /* destroy_dev can sleep so release lock */ ret = evdev_cdev_destroy(evdev); evdev->ev_cdev = NULL; - if (ret == 0) + if (ret == 0 && evdev->ev_lock_type == EV_LOCK_INTERNAL) mtx_destroy(&evdev->ev_mtx); evdev_free_absinfo(evdev->ev_absinfo); evdev_mt_free(evdev); return (ret); } inline void evdev_set_name(struct evdev_dev *evdev, const char *name) { snprintf(evdev->ev_name, NAMELEN, "%s", name); } inline void evdev_set_id(struct evdev_dev *evdev, uint16_t bustype, uint16_t vendor, uint16_t product, uint16_t version) { evdev->ev_id = (struct input_id) { .bustype = bustype, .vendor = vendor, .product = product, .version = version }; } inline void evdev_set_phys(struct evdev_dev *evdev, const char *name) { snprintf(evdev->ev_shortname, NAMELEN, "%s", name); } inline void evdev_set_serial(struct evdev_dev *evdev, const char *serial) { snprintf(evdev->ev_serial, NAMELEN, "%s", serial); } inline void evdev_set_methods(struct evdev_dev *evdev, void *softc, const struct evdev_methods *methods) { evdev->ev_methods = methods; evdev->ev_softc = softc; } inline void evdev_support_prop(struct evdev_dev *evdev, uint16_t prop) { KASSERT(prop < INPUT_PROP_CNT, ("invalid evdev input property")); bit_set(evdev->ev_prop_flags, prop); } inline void evdev_support_event(struct evdev_dev *evdev, uint16_t type) { KASSERT(type < EV_CNT, ("invalid evdev event property")); bit_set(evdev->ev_type_flags, type); } inline void evdev_support_key(struct evdev_dev *evdev, uint16_t code) { KASSERT(code < KEY_CNT, ("invalid evdev key property")); bit_set(evdev->ev_key_flags, code); } inline void evdev_support_rel(struct evdev_dev *evdev, uint16_t code) { KASSERT(code < REL_CNT, ("invalid evdev rel property")); bit_set(evdev->ev_rel_flags, code); } inline void evdev_support_abs(struct evdev_dev *evdev, uint16_t code, int32_t value, int32_t minimum, int32_t maximum, int32_t fuzz, int32_t flat, int32_t resolution) { struct input_absinfo absinfo; KASSERT(code < ABS_CNT, ("invalid evdev abs property")); absinfo = (struct input_absinfo) { .value = value, .minimum = minimum, .maximum = maximum, .fuzz = fuzz, .flat = flat, .resolution = resolution, }; evdev_set_abs_bit(evdev, code); evdev_set_absinfo(evdev, code, &absinfo); } inline void evdev_set_abs_bit(struct evdev_dev *evdev, uint16_t code) { KASSERT(code < ABS_CNT, ("invalid evdev abs property")); if (evdev->ev_absinfo == NULL) evdev->ev_absinfo = evdev_alloc_absinfo(); bit_set(evdev->ev_abs_flags, code); } inline void evdev_support_msc(struct evdev_dev *evdev, uint16_t code) { KASSERT(code < MSC_CNT, ("invalid evdev msc property")); bit_set(evdev->ev_msc_flags, code); } inline void evdev_support_led(struct evdev_dev *evdev, uint16_t code) { KASSERT(code < LED_CNT, ("invalid evdev led property")); bit_set(evdev->ev_led_flags, code); } inline void evdev_support_snd(struct evdev_dev *evdev, uint16_t code) { KASSERT(code < SND_CNT, ("invalid evdev snd property")); bit_set(evdev->ev_snd_flags, code); } inline void evdev_support_sw(struct evdev_dev *evdev, uint16_t code) { KASSERT(code < SW_CNT, ("invalid evdev sw property")); bit_set(evdev->ev_sw_flags, code); } bool evdev_event_supported(struct evdev_dev *evdev, uint16_t type) { KASSERT(type < EV_CNT, ("invalid evdev event property")); return (bit_test(evdev->ev_type_flags, type)); } inline void evdev_set_absinfo(struct evdev_dev *evdev, uint16_t axis, struct input_absinfo *absinfo) { KASSERT(axis < ABS_CNT, ("invalid evdev abs property")); if (axis == ABS_MT_SLOT && (absinfo->maximum < 1 || absinfo->maximum >= MAX_MT_SLOTS)) return; if (evdev->ev_absinfo == NULL) evdev->ev_absinfo = evdev_alloc_absinfo(); if (axis == ABS_MT_SLOT) evdev->ev_absinfo[ABS_MT_SLOT].maximum = absinfo->maximum; else memcpy(&evdev->ev_absinfo[axis], absinfo, sizeof(struct input_absinfo)); } inline void evdev_set_repeat_params(struct evdev_dev *evdev, uint16_t property, int value) { KASSERT(property < REP_CNT, ("invalid evdev repeat property")); evdev->ev_rep[property] = value; } inline void evdev_set_flag(struct evdev_dev *evdev, uint16_t flag) { KASSERT(flag < EVDEV_FLAG_CNT, ("invalid evdev flag property")); bit_set(evdev->ev_flags, flag); } static int evdev_check_event(struct evdev_dev *evdev, uint16_t type, uint16_t code, int32_t value) { if (type >= EV_CNT) return (EINVAL); /* Allow SYN events implicitly */ if (type != EV_SYN && !evdev_event_supported(evdev, type)) return (EINVAL); switch (type) { case EV_SYN: if (code >= SYN_CNT) return (EINVAL); break; case EV_KEY: if (code >= KEY_CNT) return (EINVAL); if (!bit_test(evdev->ev_key_flags, code)) return (EINVAL); break; case EV_REL: if (code >= REL_CNT) return (EINVAL); if (!bit_test(evdev->ev_rel_flags, code)) return (EINVAL); break; case EV_ABS: if (code >= ABS_CNT) return (EINVAL); if (!bit_test(evdev->ev_abs_flags, code)) return (EINVAL); if (code == ABS_MT_SLOT && (value < 0 || value > MAXIMAL_MT_SLOT(evdev))) return (EINVAL); if (ABS_IS_MT(code) && evdev->ev_mt == NULL && bit_test(evdev->ev_abs_flags, ABS_MT_SLOT)) return (EINVAL); break; case EV_MSC: if (code >= MSC_CNT) return (EINVAL); if (!bit_test(evdev->ev_msc_flags, code)) return (EINVAL); break; case EV_LED: if (code >= LED_CNT) return (EINVAL); if (!bit_test(evdev->ev_led_flags, code)) return (EINVAL); break; case EV_SND: if (code >= SND_CNT) return (EINVAL); if (!bit_test(evdev->ev_snd_flags, code)) return (EINVAL); break; case EV_SW: if (code >= SW_CNT) return (EINVAL); if (!bit_test(evdev->ev_sw_flags, code)) return (EINVAL); break; case EV_REP: if (code >= REP_CNT) return (EINVAL); break; default: return (EINVAL); } return (0); } static void evdev_modify_event(struct evdev_dev *evdev, uint16_t type, uint16_t code, int32_t *value) { EVDEV_LOCK_ASSERT(evdev); switch (type) { case EV_KEY: if (!evdev_event_supported(evdev, EV_REP)) break; if (!bit_test(evdev->ev_flags, EVDEV_FLAG_SOFTREPEAT)) { /* Detect driver key repeats. */ if (bit_test(evdev->ev_key_states, code) && *value == KEY_EVENT_DOWN) *value = KEY_EVENT_REPEAT; } else { /* Start/stop callout for evdev repeats */ if (bit_test(evdev->ev_key_states, code) == !*value) { if (*value == KEY_EVENT_DOWN) evdev_start_repeat(evdev, code); else evdev_stop_repeat(evdev); } } break; case EV_ABS: /* TBD: implement fuzz */ break; } } static enum evdev_sparse_result evdev_sparse_event(struct evdev_dev *evdev, uint16_t type, uint16_t code, int32_t value) { int32_t last_mt_slot; EVDEV_LOCK_ASSERT(evdev); /* * For certain event types, update device state bits * and convert level reporting to edge reporting */ switch (type) { case EV_KEY: switch (value) { case KEY_EVENT_UP: case KEY_EVENT_DOWN: if (bit_test(evdev->ev_key_states, code) == value) return (EV_SKIP_EVENT); bit_change(evdev->ev_key_states, code, value); break; case KEY_EVENT_REPEAT: if (bit_test(evdev->ev_key_states, code) == 0 || !evdev_event_supported(evdev, EV_REP)) return (EV_SKIP_EVENT); break; default: return (EV_SKIP_EVENT); } break; case EV_LED: if (bit_test(evdev->ev_led_states, code) == value) return (EV_SKIP_EVENT); bit_change(evdev->ev_led_states, code, value); break; case EV_SND: if (bit_test(evdev->ev_snd_states, code) == value) return (EV_SKIP_EVENT); bit_change(evdev->ev_snd_states, code, value); break; case EV_SW: if (bit_test(evdev->ev_sw_states, code) == value) return (EV_SKIP_EVENT); bit_change(evdev->ev_sw_states, code, value); break; case EV_REP: if (evdev->ev_rep[code] == value) return (EV_SKIP_EVENT); evdev_set_repeat_params(evdev, code, value); break; case EV_REL: if (value == 0) return (EV_SKIP_EVENT); break; /* For EV_ABS, save last value in absinfo and ev_mt_states */ case EV_ABS: switch (code) { case ABS_MT_SLOT: /* Postpone ABS_MT_SLOT till next event */ evdev_set_last_mt_slot(evdev, value); return (EV_SKIP_EVENT); case ABS_MT_FIRST ... ABS_MT_LAST: /* Pass MT protocol type A events as is */ if (!bit_test(evdev->ev_abs_flags, ABS_MT_SLOT)) break; /* Don`t repeat MT protocol type B events */ last_mt_slot = evdev_get_last_mt_slot(evdev); if (evdev_get_mt_value(evdev, last_mt_slot, code) == value) return (EV_SKIP_EVENT); evdev_set_mt_value(evdev, last_mt_slot, code, value); if (last_mt_slot != CURRENT_MT_SLOT(evdev)) { CURRENT_MT_SLOT(evdev) = last_mt_slot; evdev->ev_report_opened = true; return (EV_REPORT_MT_SLOT); } break; default: if (evdev->ev_absinfo[code].value == value) return (EV_SKIP_EVENT); evdev->ev_absinfo[code].value = value; } break; case EV_SYN: if (code == SYN_REPORT) { /* Skip empty reports */ if (!evdev->ev_report_opened) return (EV_SKIP_EVENT); evdev->ev_report_opened = false; return (EV_REPORT_EVENT); } break; } evdev->ev_report_opened = true; return (EV_REPORT_EVENT); } static void evdev_propagate_event(struct evdev_dev *evdev, uint16_t type, uint16_t code, int32_t value) { struct evdev_client *client; debugf(evdev, "%s pushed event %d/%d/%d", evdev->ev_shortname, type, code, value); EVDEV_LOCK_ASSERT(evdev); /* Propagate event through all clients */ LIST_FOREACH(client, &evdev->ev_clients, ec_link) { if (evdev->ev_grabber != NULL && evdev->ev_grabber != client) continue; EVDEV_CLIENT_LOCKQ(client); evdev_client_push(client, type, code, value); if (type == EV_SYN && code == SYN_REPORT) evdev_notify_event(client); EVDEV_CLIENT_UNLOCKQ(client); } /* Update counters */ evdev->ev_event_count++; if (type == EV_SYN && code == SYN_REPORT) evdev->ev_report_count++; } void evdev_send_event(struct evdev_dev *evdev, uint16_t type, uint16_t code, int32_t value) { enum evdev_sparse_result sparse; EVDEV_LOCK_ASSERT(evdev); sparse = evdev_sparse_event(evdev, type, code, value); switch (sparse) { case EV_REPORT_MT_SLOT: /* report postponed ABS_MT_SLOT */ evdev_propagate_event(evdev, EV_ABS, ABS_MT_SLOT, CURRENT_MT_SLOT(evdev)); /* FALLTHROUGH */ case EV_REPORT_EVENT: evdev_propagate_event(evdev, type, code, value); /* FALLTHROUGH */ case EV_SKIP_EVENT: break; } } int evdev_push_event(struct evdev_dev *evdev, uint16_t type, uint16_t code, int32_t value) { + if (evdev->ev_lock_type != EV_LOCK_INTERNAL) + EVDEV_LOCK_ASSERT(evdev); + if (evdev_check_event(evdev, type, code, value) != 0) return (EINVAL); - EVDEV_LOCK(evdev); + if (evdev->ev_lock_type == EV_LOCK_INTERNAL) + EVDEV_LOCK(evdev); evdev_modify_event(evdev, type, code, &value); if (type == EV_SYN && code == SYN_REPORT && evdev->ev_report_opened && bit_test(evdev->ev_flags, EVDEV_FLAG_MT_STCOMPAT)) evdev_send_mt_compat(evdev); evdev_send_event(evdev, type, code, value); - EVDEV_UNLOCK(evdev); + if (evdev->ev_lock_type == EV_LOCK_INTERNAL) + EVDEV_UNLOCK(evdev); return (0); } int evdev_inject_event(struct evdev_dev *evdev, uint16_t type, uint16_t code, int32_t value) { int ret = 0; switch (type) { case EV_REP: /* evdev repeats should not be processed by hardware driver */ if (bit_test(evdev->ev_flags, EVDEV_FLAG_SOFTREPEAT)) goto push; /* FALLTHROUGH */ case EV_LED: case EV_MSC: case EV_SND: case EV_FF: if (evdev->ev_methods != NULL && evdev->ev_methods->ev_event != NULL) evdev->ev_methods->ev_event(evdev, evdev->ev_softc, type, code, value); /* * Leds and driver repeats should be reported in ev_event * method body to interoperate with kbdmux states and rates * propagation so both ways (ioctl and evdev) of changing it * will produce only one evdev event report to client. */ if (type == EV_LED || type == EV_REP) break; /* FALLTHROUGH */ case EV_SYN: case EV_KEY: case EV_REL: case EV_ABS: case EV_SW: push: ret = evdev_push_event(evdev, type, code, value); break; default: ret = EINVAL; } return (ret); } inline int evdev_sync(struct evdev_dev *evdev) { return (evdev_push_event(evdev, EV_SYN, SYN_REPORT, 1)); } inline int evdev_mt_sync(struct evdev_dev *evdev) { return (evdev_push_event(evdev, EV_SYN, SYN_MT_REPORT, 1)); } int evdev_register_client(struct evdev_dev *evdev, struct evdev_client *client) { int ret = 0; debugf(evdev, "adding new client for device %s", evdev->ev_shortname); EVDEV_LOCK_ASSERT(evdev); if (LIST_EMPTY(&evdev->ev_clients) && evdev->ev_methods != NULL && evdev->ev_methods->ev_open != NULL) { debugf(evdev, "calling ev_open() on device %s", evdev->ev_shortname); ret = evdev->ev_methods->ev_open(evdev, evdev->ev_softc); } if (ret == 0) LIST_INSERT_HEAD(&evdev->ev_clients, client, ec_link); return (ret); } void evdev_dispose_client(struct evdev_dev *evdev, struct evdev_client *client) { debugf(evdev, "removing client for device %s", evdev->ev_shortname); EVDEV_LOCK_ASSERT(evdev); LIST_REMOVE(client, ec_link); if (LIST_EMPTY(&evdev->ev_clients)) { if (evdev->ev_methods != NULL && evdev->ev_methods->ev_close != NULL) evdev->ev_methods->ev_close(evdev, evdev->ev_softc); if (evdev_event_supported(evdev, EV_REP) && bit_test(evdev->ev_flags, EVDEV_FLAG_SOFTREPEAT)) evdev_stop_repeat(evdev); } evdev_release_client(evdev, client); } int evdev_grab_client(struct evdev_dev *evdev, struct evdev_client *client) { EVDEV_LOCK_ASSERT(evdev); if (evdev->ev_grabber != NULL) return (EBUSY); evdev->ev_grabber = client; return (0); } int evdev_release_client(struct evdev_dev *evdev, struct evdev_client *client) { EVDEV_LOCK_ASSERT(evdev); if (evdev->ev_grabber != client) return (EINVAL); evdev->ev_grabber = NULL; return (0); } static void evdev_repeat_callout(void *arg) { struct evdev_dev *evdev = (struct evdev_dev *)arg; evdev_send_event(evdev, EV_KEY, evdev->ev_rep_key, KEY_EVENT_REPEAT); evdev_send_event(evdev, EV_SYN, SYN_REPORT, 1); if (evdev->ev_rep[REP_PERIOD]) callout_reset(&evdev->ev_rep_callout, evdev->ev_rep[REP_PERIOD] * hz / 1000, evdev_repeat_callout, evdev); else evdev->ev_rep_key = KEY_RESERVED; } static void evdev_start_repeat(struct evdev_dev *evdev, uint16_t key) { EVDEV_LOCK_ASSERT(evdev); if (evdev->ev_rep[REP_DELAY]) { evdev->ev_rep_key = key; callout_reset(&evdev->ev_rep_callout, evdev->ev_rep[REP_DELAY] * hz / 1000, evdev_repeat_callout, evdev); } } static void evdev_stop_repeat(struct evdev_dev *evdev) { EVDEV_LOCK_ASSERT(evdev); if (evdev->ev_rep_key != KEY_RESERVED) { callout_stop(&evdev->ev_rep_callout); evdev->ev_rep_key = KEY_RESERVED; } } MODULE_VERSION(evdev, 1); Index: head/sys/dev/evdev/evdev.h =================================================================== --- head/sys/dev/evdev/evdev.h (revision 306854) +++ head/sys/dev/evdev/evdev.h (revision 306855) @@ -1,129 +1,130 @@ /*- * Copyright (c) 2014 Jakub Wojciech Klama * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #ifndef _DEV_EVDEV_EVDEV_H #define _DEV_EVDEV_EVDEV_H #include #include #include #include #define NAMELEN 80 struct evdev_dev; typedef int (evdev_open_t)(struct evdev_dev *, void *); typedef void (evdev_close_t)(struct evdev_dev *, void *); typedef void (evdev_event_t)(struct evdev_dev *, void *, uint16_t, uint16_t, int32_t); typedef void (evdev_keycode_t)(struct evdev_dev *, void *, struct input_keymap_entry *); /* * Keyboard and mouse events recipient mask. * evdev_rcpt_mask variable should be respected by keyboard and mouse drivers * that are able to send events through both evdev and sysmouse/kbdmux * interfaces so user can choose prefered one to not receive one event twice. */ #define EVDEV_RCPT_SYSMOUSE (1<<0) #define EVDEV_RCPT_KBDMUX (1<<1) #define EVDEV_RCPT_HW_MOUSE (1<<2) #define EVDEV_RCPT_HW_KBD (1<<3) extern int evdev_rcpt_mask; #define ABS_MT_FIRST ABS_MT_TOUCH_MAJOR #define ABS_MT_LAST ABS_MT_TOOL_Y #define ABS_IS_MT(x) ((x) >= ABS_MT_FIRST && (x) <= ABS_MT_LAST) #define ABS_MT_INDEX(x) ((x) - ABS_MT_FIRST) #define MT_CNT (ABS_MT_INDEX(ABS_MT_LAST) + 1) /* Multitouch protocol type A */ #define MAX_MT_REPORTS 5 /* Multitouch protocol type B interface */ #define MAX_MT_SLOTS 16 #define EVDEV_FLAG_SOFTREPEAT 0x00 /* use evdev to repeat keys */ #define EVDEV_FLAG_MT_STCOMPAT 0x01 /* autogenerate ST-compatible events * for MT protocol type B reports */ #define EVDEV_FLAG_MAX 0x1F #define EVDEV_FLAG_CNT (EVDEV_FLAG_MAX + 1) struct evdev_methods { evdev_open_t *ev_open; evdev_close_t *ev_close; evdev_event_t *ev_event; evdev_keycode_t *ev_get_keycode; evdev_keycode_t *ev_set_keycode; }; /* Input device interface: */ struct evdev_dev *evdev_alloc(void); void evdev_free(struct evdev_dev *); void evdev_set_name(struct evdev_dev *, const char *); void evdev_set_id(struct evdev_dev *, uint16_t, uint16_t, uint16_t, uint16_t); void evdev_set_phys(struct evdev_dev *, const char *); void evdev_set_serial(struct evdev_dev *, const char *); void evdev_set_methods(struct evdev_dev *, void *, const struct evdev_methods *); int evdev_register(struct evdev_dev *); +int evdev_register_mtx(struct evdev_dev *, struct mtx *); int evdev_unregister(struct evdev_dev *); int evdev_push_event(struct evdev_dev *, uint16_t, uint16_t, int32_t); int evdev_sync(struct evdev_dev *); int evdev_mt_sync(struct evdev_dev *); void evdev_support_prop(struct evdev_dev *, uint16_t); void evdev_support_event(struct evdev_dev *, uint16_t); void evdev_support_key(struct evdev_dev *, uint16_t); void evdev_support_rel(struct evdev_dev *, uint16_t); void evdev_support_abs(struct evdev_dev *, uint16_t, int32_t, int32_t, int32_t, int32_t, int32_t, int32_t); void evdev_support_msc(struct evdev_dev *, uint16_t); void evdev_support_led(struct evdev_dev *, uint16_t); void evdev_support_snd(struct evdev_dev *, uint16_t); void evdev_support_sw(struct evdev_dev *, uint16_t); void evdev_set_repeat_params(struct evdev_dev *, uint16_t, int); int evdev_set_report_size(struct evdev_dev *, size_t); void evdev_set_flag(struct evdev_dev *, uint16_t); /* Multitouch related functions: */ int32_t evdev_get_mt_slot_by_tracking_id(struct evdev_dev *, int32_t); void evdev_support_nfingers(struct evdev_dev *, int32_t); void evdev_support_mt_compat(struct evdev_dev *); void evdev_push_nfingers(struct evdev_dev *, int32_t); void evdev_push_mt_compat(struct evdev_dev *); /* Utility functions: */ uint16_t evdev_hid2key(int); void evdev_support_all_known_keys(struct evdev_dev *); uint16_t evdev_scancode2key(int *, int); void evdev_push_mouse_btn(struct evdev_dev *, int); void evdev_push_leds(struct evdev_dev *, int); void evdev_push_repeats(struct evdev_dev *, keyboard_t *); evdev_event_t evdev_ev_kbd_event; #endif /* _DEV_EVDEV_EVDEV_H */ Index: head/sys/dev/evdev/evdev_mt.c =================================================================== --- head/sys/dev/evdev/evdev_mt.c (revision 306854) +++ head/sys/dev/evdev/evdev_mt.c (revision 306855) @@ -1,269 +1,277 @@ /*- * Copyright (c) 2016 Vladimir Kondratyev * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #include #include #include #include #include #include #include #include #ifdef DEBUG #define debugf(fmt, args...) printf("evdev: " fmt "\n", ##args) #else #define debugf(fmt, args...) #endif static uint16_t evdev_fngmap[] = { BTN_TOOL_FINGER, BTN_TOOL_DOUBLETAP, BTN_TOOL_TRIPLETAP, BTN_TOOL_QUADTAP, BTN_TOOL_QUINTTAP, }; static uint16_t evdev_mtstmap[][2] = { { ABS_MT_POSITION_X, ABS_X }, { ABS_MT_POSITION_Y, ABS_Y }, { ABS_MT_PRESSURE, ABS_PRESSURE }, { ABS_MT_TOUCH_MAJOR, ABS_TOOL_WIDTH }, }; struct evdev_mt_slot { uint64_t ev_report; int32_t ev_mt_states[MT_CNT]; }; struct evdev_mt { int32_t ev_mt_last_reported_slot; struct evdev_mt_slot ev_mt_slots[]; }; void evdev_mt_init(struct evdev_dev *evdev) { int32_t slot, slots; slots = MAXIMAL_MT_SLOT(evdev) + 1; evdev->ev_mt = malloc(offsetof(struct evdev_mt, ev_mt_slots) + sizeof(struct evdev_mt_slot) * slots, M_EVDEV, M_WAITOK | M_ZERO); /* Initialize multitouch protocol type B states */ for (slot = 0; slot < slots; slot++) { /* * .ev_report should not be initialized to initial value of * report counter (0) as it brokes free slot detection in * evdev_get_mt_slot_by_tracking_id. So initialize it to -1 */ evdev->ev_mt->ev_mt_slots[slot] = (struct evdev_mt_slot) { .ev_report = 0xFFFFFFFFFFFFFFFFULL, .ev_mt_states[ABS_MT_INDEX(ABS_MT_TRACKING_ID)] = -1, }; } if (bit_test(evdev->ev_flags, EVDEV_FLAG_MT_STCOMPAT)) evdev_support_mt_compat(evdev); } void evdev_mt_free(struct evdev_dev *evdev) { free(evdev->ev_mt, M_EVDEV); } int32_t evdev_get_last_mt_slot(struct evdev_dev *evdev) { return (evdev->ev_mt->ev_mt_last_reported_slot); } void evdev_set_last_mt_slot(struct evdev_dev *evdev, int32_t slot) { evdev->ev_mt->ev_mt_last_reported_slot = slot; } inline int32_t evdev_get_mt_value(struct evdev_dev *evdev, int32_t slot, int16_t code) { return (evdev->ev_mt-> ev_mt_slots[slot].ev_mt_states[ABS_MT_INDEX(code)]); } inline void evdev_set_mt_value(struct evdev_dev *evdev, int32_t slot, int16_t code, int32_t value) { if (code == ABS_MT_TRACKING_ID && value == -1) evdev->ev_mt->ev_mt_slots[slot].ev_report = evdev->ev_report_count; evdev->ev_mt->ev_mt_slots[slot].ev_mt_states[ABS_MT_INDEX(code)] = value; } int32_t evdev_get_mt_slot_by_tracking_id(struct evdev_dev *evdev, int32_t tracking_id) { int32_t tr_id, slot, free_slot = -1; for (slot = 0; slot <= MAXIMAL_MT_SLOT(evdev); slot++) { tr_id = evdev_get_mt_value(evdev, slot, ABS_MT_TRACKING_ID); if (tr_id == tracking_id) return (slot); /* * Its possible that slot will be reassigned in a place of just * released one within the same report. To avoid this compare * report counter with slot`s report number updated with each * ABS_MT_TRACKING_ID change. */ if (free_slot == -1 && tr_id == -1 && evdev->ev_mt->ev_mt_slots[slot].ev_report != evdev->ev_report_count) free_slot = slot; } return (free_slot); } void evdev_support_nfingers(struct evdev_dev *evdev, int32_t nfingers) { int32_t i; for (i = 0; i < MIN(nitems(evdev_fngmap), nfingers); i++) evdev_support_key(evdev, evdev_fngmap[i]); } void evdev_support_mt_compat(struct evdev_dev *evdev) { int32_t i; if (evdev->ev_absinfo == NULL) return; evdev_support_event(evdev, EV_KEY); evdev_support_key(evdev, BTN_TOUCH); /* Touchscreens should not advertise tap tool capabilities */ if (!bit_test(evdev->ev_prop_flags, INPUT_PROP_DIRECT)) evdev_support_nfingers(evdev, MAXIMAL_MT_SLOT(evdev) + 1); /* Echo 0-th MT-slot as ST-slot */ for (i = 0; i < nitems(evdev_mtstmap); i++) if (bit_test(evdev->ev_abs_flags, evdev_mtstmap[i][0])) evdev_support_abs(evdev, evdev_mtstmap[i][1], evdev->ev_absinfo[evdev_mtstmap[i][0]].value, evdev->ev_absinfo[evdev_mtstmap[i][0]].minimum, evdev->ev_absinfo[evdev_mtstmap[i][0]].maximum, evdev->ev_absinfo[evdev_mtstmap[i][0]].fuzz, evdev->ev_absinfo[evdev_mtstmap[i][0]].flat, evdev->ev_absinfo[evdev_mtstmap[i][0]].resolution); } static int32_t evdev_count_fingers(struct evdev_dev *evdev) { int32_t nfingers = 0, i; for (i = 0; i <= MAXIMAL_MT_SLOT(evdev); i++) if (evdev_get_mt_value(evdev, i, ABS_MT_TRACKING_ID) != -1) nfingers++; return (nfingers); } static void evdev_send_nfingers(struct evdev_dev *evdev, int32_t nfingers) { int32_t i; EVDEV_LOCK_ASSERT(evdev); if (nfingers > nitems(evdev_fngmap)) nfingers = nitems(evdev_fngmap); for (i = 0; i < nitems(evdev_fngmap); i++) evdev_send_event(evdev, EV_KEY, evdev_fngmap[i], nfingers == i + 1); } void evdev_push_nfingers(struct evdev_dev *evdev, int32_t nfingers) { - EVDEV_LOCK(evdev); + if (evdev->ev_lock_type == EV_LOCK_INTERNAL) + EVDEV_LOCK(evdev); + else + EVDEV_LOCK_ASSERT(evdev); evdev_send_nfingers(evdev, nfingers); - EVDEV_UNLOCK(evdev); + if (evdev->ev_lock_type == EV_LOCK_INTERNAL) + EVDEV_UNLOCK(evdev); } void evdev_send_mt_compat(struct evdev_dev *evdev) { int32_t nfingers, i; EVDEV_LOCK_ASSERT(evdev); nfingers = evdev_count_fingers(evdev); evdev_send_event(evdev, EV_KEY, BTN_TOUCH, nfingers > 0); if (evdev_get_mt_value(evdev, 0, ABS_MT_TRACKING_ID) != -1) /* Echo 0-th MT-slot as ST-slot */ for (i = 0; i < nitems(evdev_mtstmap); i++) if (bit_test(evdev->ev_abs_flags, evdev_mtstmap[i][1])) evdev_send_event(evdev, EV_ABS, evdev_mtstmap[i][1], evdev_get_mt_value(evdev, 0, evdev_mtstmap[i][0])); /* Touchscreens should not report tool taps */ if (!bit_test(evdev->ev_prop_flags, INPUT_PROP_DIRECT)) evdev_send_nfingers(evdev, nfingers); if (nfingers == 0) evdev_send_event(evdev, EV_ABS, ABS_PRESSURE, 0); } void evdev_push_mt_compat(struct evdev_dev *evdev) { - EVDEV_LOCK(evdev); + if (evdev->ev_lock_type == EV_LOCK_INTERNAL) + EVDEV_LOCK(evdev); + else + EVDEV_LOCK_ASSERT(evdev); evdev_send_mt_compat(evdev); - EVDEV_UNLOCK(evdev); + if (evdev->ev_lock_type == EV_LOCK_INTERNAL) + EVDEV_UNLOCK(evdev); } Index: head/sys/dev/evdev/evdev_private.h =================================================================== --- head/sys/dev/evdev/evdev_private.h (revision 306854) +++ head/sys/dev/evdev/evdev_private.h (revision 306855) @@ -1,191 +1,199 @@ /*- * Copyright (c) 2014 Jakub Wojciech Klama * Copyright (c) 2015-2016 Vladimir Kondratyev * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #ifndef _DEV_EVDEV_EVDEV_PRIVATE_H #define _DEV_EVDEV_EVDEV_PRIVATE_H #include #include #include #include #include #include #include #include #define NAMELEN 80 /* * bitstr_t implementation must be identical to one found in EVIOCG* * libevdev ioctls. Our bitstring(3) API is compatible since r299090. */ _Static_assert(sizeof(bitstr_t) == sizeof(unsigned long), "bitstr_t size mismatch"); MALLOC_DECLARE(M_EVDEV); struct evdev_client; struct evdev_mt; #define CURRENT_MT_SLOT(evdev) ((evdev)->ev_absinfo[ABS_MT_SLOT].value) #define MAXIMAL_MT_SLOT(evdev) ((evdev)->ev_absinfo[ABS_MT_SLOT].maximum) enum evdev_key_events { KEY_EVENT_UP, KEY_EVENT_DOWN, KEY_EVENT_REPEAT }; /* evdev clock IDs in Linux semantic */ enum evdev_clock_id { EV_CLOCK_REALTIME = 0, /* UTC clock */ EV_CLOCK_MONOTONIC, /* monotonic, stops on suspend */ EV_CLOCK_BOOTTIME /* monotonic, suspend-awared */ }; +enum evdev_lock_type +{ + EV_LOCK_INTERNAL = 0, /* Internal evdev mutex */ + EV_LOCK_MTX, /* Driver`s mutex */ +}; + struct evdev_dev { char ev_name[NAMELEN]; char ev_shortname[NAMELEN]; char ev_serial[NAMELEN]; struct cdev * ev_cdev; int ev_unit; + enum evdev_lock_type ev_lock_type; + struct mtx * ev_lock; struct mtx ev_mtx; struct input_id ev_id; struct evdev_client * ev_grabber; size_t ev_report_size; /* Supported features: */ bitstr_t bit_decl(ev_prop_flags, INPUT_PROP_CNT); bitstr_t bit_decl(ev_type_flags, EV_CNT); bitstr_t bit_decl(ev_key_flags, KEY_CNT); bitstr_t bit_decl(ev_rel_flags, REL_CNT); bitstr_t bit_decl(ev_abs_flags, ABS_CNT); bitstr_t bit_decl(ev_msc_flags, MSC_CNT); bitstr_t bit_decl(ev_led_flags, LED_CNT); bitstr_t bit_decl(ev_snd_flags, SND_CNT); bitstr_t bit_decl(ev_sw_flags, SW_CNT); struct input_absinfo * ev_absinfo; bitstr_t bit_decl(ev_flags, EVDEV_FLAG_CNT); /* Repeat parameters & callout: */ int ev_rep[REP_CNT]; struct callout ev_rep_callout; uint16_t ev_rep_key; /* State: */ bitstr_t bit_decl(ev_key_states, KEY_CNT); bitstr_t bit_decl(ev_led_states, LED_CNT); bitstr_t bit_decl(ev_snd_states, SND_CNT); bitstr_t bit_decl(ev_sw_states, SW_CNT); bool ev_report_opened; /* Multitouch protocol type B state: */ struct evdev_mt * ev_mt; /* Counters: */ uint64_t ev_event_count; uint64_t ev_report_count; /* Parent driver callbacks: */ const struct evdev_methods * ev_methods; void * ev_softc; LIST_ENTRY(evdev_dev) ev_link; LIST_HEAD(, evdev_client) ev_clients; }; -#define EVDEV_LOCK(evdev) mtx_lock(&(evdev)->ev_mtx) -#define EVDEV_UNLOCK(evdev) mtx_unlock(&(evdev)->ev_mtx) -#define EVDEV_LOCK_ASSERT(evdev) mtx_assert(&(evdev)->ev_mtx, MA_OWNED) +#define EVDEV_LOCK(evdev) mtx_lock((evdev)->ev_lock) +#define EVDEV_UNLOCK(evdev) mtx_unlock((evdev)->ev_lock) +#define EVDEV_LOCK_ASSERT(evdev) mtx_assert((evdev)->ev_lock, MA_OWNED) struct evdev_client { struct evdev_dev * ec_evdev; struct mtx ec_buffer_mtx; size_t ec_buffer_size; size_t ec_buffer_head; size_t ec_buffer_tail; size_t ec_buffer_ready; enum evdev_clock_id ec_clock_id; struct selinfo ec_selp; struct sigio * ec_sigio; bool ec_async; bool ec_revoked; bool ec_blocked; bool ec_selected; LIST_ENTRY(evdev_client) ec_link; struct input_event ec_buffer[]; }; #define EVDEV_CLIENT_LOCKQ(client) mtx_lock(&(client)->ec_buffer_mtx) #define EVDEV_CLIENT_UNLOCKQ(client) mtx_unlock(&(client)->ec_buffer_mtx) #define EVDEV_CLIENT_LOCKQ_ASSERT(client) \ mtx_assert(&(client)->ec_buffer_mtx, MA_OWNED) #define EVDEV_CLIENT_EMPTYQ(client) \ ((client)->ec_buffer_head == (client)->ec_buffer_ready) #define EVDEV_CLIENT_SIZEQ(client) \ (((client)->ec_buffer_ready + (client)->ec_buffer_size - \ (client)->ec_buffer_head) % (client)->ec_buffer_size) /* Input device interface: */ void evdev_send_event(struct evdev_dev *, uint16_t, uint16_t, int32_t); int evdev_inject_event(struct evdev_dev *, uint16_t, uint16_t, int32_t); int evdev_cdev_create(struct evdev_dev *); int evdev_cdev_destroy(struct evdev_dev *); bool evdev_event_supported(struct evdev_dev *, uint16_t); void evdev_set_abs_bit(struct evdev_dev *, uint16_t); void evdev_set_absinfo(struct evdev_dev *, uint16_t, struct input_absinfo *); /* Client interface: */ int evdev_register_client(struct evdev_dev *, struct evdev_client *); void evdev_dispose_client(struct evdev_dev *, struct evdev_client *); int evdev_grab_client(struct evdev_dev *, struct evdev_client *); int evdev_release_client(struct evdev_dev *, struct evdev_client *); void evdev_client_push(struct evdev_client *, uint16_t, uint16_t, int32_t); void evdev_notify_event(struct evdev_client *); void evdev_revoke_client(struct evdev_client *); /* Multitouch related functions: */ void evdev_mt_init(struct evdev_dev *); void evdev_mt_free(struct evdev_dev *); int32_t evdev_get_last_mt_slot(struct evdev_dev *); void evdev_set_last_mt_slot(struct evdev_dev *, int32_t); int32_t evdev_get_mt_value(struct evdev_dev *, int32_t, int16_t); void evdev_set_mt_value(struct evdev_dev *, int32_t, int16_t, int32_t); void evdev_send_mt_compat(struct evdev_dev *); /* Utility functions: */ void evdev_client_dumpqueue(struct evdev_client *); #endif /* _DEV_EVDEV_EVDEV_PRIVATE_H */