2 * Copyright (c) 2015-2016 Oleksandr Tymoshenko <gonzo@freebsd.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include "opt_platform.h"
33 #include <sys/param.h>
34 #include <sys/systm.h>
37 #include <sys/kernel.h>
39 #include <sys/malloc.h>
40 #include <sys/module.h>
41 #include <sys/mutex.h>
45 #include <sys/ioccom.h>
46 #include <sys/filio.h>
49 #include <dev/kbd/kbdreg.h>
50 #include <dev/kbd/kbdtables.h>
52 #include <dev/fdt/fdt_common.h>
53 #include <dev/ofw/ofw_bus.h>
54 #include <dev/ofw/ofw_bus_subr.h>
56 #include <dev/gpio/gpiobusvar.h>
57 #include <dev/gpio/gpiokeys.h>
59 #define KBD_DRIVER_NAME "gpiokeys"
61 #define GPIOKEYS_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx)
62 #define GPIOKEYS_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx)
63 #define GPIOKEYS_LOCK_INIT(_sc) \
64 mtx_init(&_sc->sc_mtx, device_get_nameunit((_sc)->sc_dev), \
66 #define GPIOKEYS_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->sc_mtx);
67 #define GPIOKEYS_ASSERT_LOCKED(_sc) mtx_assert(&(_sc)->sc_mtx, MA_OWNED)
69 #define GPIOKEY_LOCK(_key) mtx_lock(&(_key)->mtx)
70 #define GPIOKEY_UNLOCK(_key) mtx_unlock(&(_key)->mtx)
71 #define GPIOKEY_LOCK_INIT(_key) \
72 mtx_init(&(_key)->mtx, "gpiokey", "gpiokey", MTX_DEF)
73 #define GPIOKEY_LOCK_DESTROY(_key) mtx_destroy(&(_key)->mtx);
76 #define KEY_RELEASE 0x80
79 #define SCAN_RELEASE 0x80
80 #define SCAN_CHAR(c) ((c) & 0x7f)
82 #define GPIOKEYS_GLOBAL_NMOD 8 /* units */
83 #define GPIOKEYS_GLOBAL_NKEYCODE 6 /* units */
84 #define GPIOKEYS_GLOBAL_IN_BUF_SIZE (2*(GPIOKEYS_GLOBAL_NMOD + (2*GPIOKEYS_GLOBAL_NKEYCODE))) /* bytes */
85 #define GPIOKEYS_GLOBAL_IN_BUF_FULL (GPIOKEYS_GLOBAL_IN_BUF_SIZE / 2) /* bytes */
86 #define GPIOKEYS_GLOBAL_NFKEY (sizeof(fkey_tab)/sizeof(fkey_tab[0])) /* units */
87 #define GPIOKEYS_GLOBAL_BUFFER_SIZE 64 /* bytes */
89 #define AUTOREPEAT_DELAY 250
90 #define AUTOREPEAT_REPEAT 34
92 struct gpiokeys_softc;
96 struct gpiokeys_softc *parent_sc;
99 struct resource *irq_res;
104 struct callout debounce_callout;
105 struct callout repeat_callout;
108 int debounce_interval;
111 struct gpiokeys_softc
115 struct gpiokey *sc_keys;
120 accentmap_t sc_accmap;
121 fkeytab_t sc_fkeymap[GPIOKEYS_GLOBAL_NFKEY];
123 uint32_t sc_input[GPIOKEYS_GLOBAL_IN_BUF_SIZE]; /* input buffer */
125 #define GPIOKEYS_GLOBAL_FLAG_POLLING 0x00000002
127 uint32_t sc_flags; /* flags */
129 int sc_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */
130 int sc_state; /* shift/lock key state */
131 int sc_accents; /* accent key index (> 0) */
135 uint16_t sc_inputhead;
136 uint16_t sc_inputtail;
141 /* gpio-keys device */
142 static int gpiokeys_probe(device_t);
143 static int gpiokeys_attach(device_t);
144 static int gpiokeys_detach(device_t);
146 /* kbd methods prototypes */
147 static int gpiokeys_set_typematic(keyboard_t *, int);
148 static uint32_t gpiokeys_read_char(keyboard_t *, int);
149 static void gpiokeys_clear_state(keyboard_t *);
150 static int gpiokeys_ioctl(keyboard_t *, u_long, caddr_t);
151 static int gpiokeys_enable(keyboard_t *);
152 static int gpiokeys_disable(keyboard_t *);
153 static void gpiokeys_event_keyinput(struct gpiokeys_softc *);
156 gpiokeys_put_key(struct gpiokeys_softc *sc, uint32_t key)
159 GPIOKEYS_ASSERT_LOCKED(sc);
161 if (sc->sc_inputs < GPIOKEYS_GLOBAL_IN_BUF_SIZE) {
162 sc->sc_input[sc->sc_inputtail] = key;
164 ++(sc->sc_inputtail);
165 if (sc->sc_inputtail >= GPIOKEYS_GLOBAL_IN_BUF_SIZE) {
166 sc->sc_inputtail = 0;
169 device_printf(sc->sc_dev, "input buffer is full\n");
174 gpiokeys_key_event(struct gpiokeys_softc *sc, uint16_t keycode, int pressed)
179 key = keycode & SCAN_KEYCODE_MASK;
185 if (keycode & SCAN_PREFIX_E0)
186 gpiokeys_put_key(sc, 0xe0);
187 else if (keycode & SCAN_PREFIX_E1)
188 gpiokeys_put_key(sc, 0xe1);
190 gpiokeys_put_key(sc, key);
193 gpiokeys_event_keyinput(sc);
197 gpiokey_autorepeat(void *arg)
203 if (key->keycode == GPIOKEY_NONE)
206 gpiokeys_key_event(key->parent_sc, key->keycode, 1);
208 callout_reset(&key->repeat_callout, key->repeat,
209 gpiokey_autorepeat, key);
213 gpiokey_debounced_intr(void *arg)
220 if (key->keycode == GPIOKEY_NONE)
223 gpio_pin_is_active(key->pin, &active);
225 gpiokeys_key_event(key->parent_sc, key->keycode, 1);
226 if (key->autorepeat) {
227 callout_reset(&key->repeat_callout, key->repeat_delay,
228 gpiokey_autorepeat, key);
232 if (key->autorepeat &&
233 callout_pending(&key->repeat_callout))
234 callout_stop(&key->repeat_callout);
235 gpiokeys_key_event(key->parent_sc, key->keycode, 0);
240 gpiokey_intr(void *arg)
248 debounce_ticks = (hz * key->debounce_interval) / 1000;
249 if (debounce_ticks == 0)
251 if (!callout_pending(&key->debounce_callout))
252 callout_reset(&key->debounce_callout, debounce_ticks,
253 gpiokey_debounced_intr, key);
258 gpiokeys_attach_key(struct gpiokeys_softc *sc, phandle_t node,
265 const char *key_name;
267 GPIOKEY_LOCK_INIT(key);
269 callout_init_mtx(&key->debounce_callout, &key->mtx, 0);
270 callout_init_mtx(&key->repeat_callout, &key->mtx, 0);
273 if (OF_getprop_alloc(node, "label", (void **)&name) == -1)
274 OF_getprop_alloc(node, "name", (void **)&name);
279 key_name = "unknown";
281 key->autorepeat = OF_hasprop(node, "autorepeat");
283 key->repeat_delay = (hz * AUTOREPEAT_DELAY) / 1000;
284 if (key->repeat_delay == 0)
285 key->repeat_delay = 1;
287 key->repeat = (hz * AUTOREPEAT_REPEAT) / 1000;
288 if (key->repeat == 0)
291 if ((OF_getprop(node, "debounce-interval", &prop, sizeof(prop))) > 0)
292 key->debounce_interval = fdt32_to_cpu(prop);
294 key->debounce_interval = 5;
296 if ((OF_getprop(node, "freebsd,code", &prop, sizeof(prop))) > 0)
297 key->keycode = fdt32_to_cpu(prop);
298 else if ((OF_getprop(node, "linux,code", &prop, sizeof(prop))) > 0) {
299 code = fdt32_to_cpu(prop);
300 key->keycode = gpiokey_map_linux_code(code);
301 if (key->keycode == GPIOKEY_NONE)
302 device_printf(sc->sc_dev, "<%s> failed to map linux,code value 0x%x\n",
306 device_printf(sc->sc_dev, "<%s> no linux,code or freebsd,code property\n",
309 err = gpio_pin_get_by_ofw_idx(sc->sc_dev, node, 0, &key->pin);
311 device_printf(sc->sc_dev, "<%s> failed to map pin\n", key_name);
317 key->irq_res = gpio_alloc_intr_resource(sc->sc_dev, &key->irq_rid,
318 RF_ACTIVE, key->pin, GPIO_INTR_EDGE_BOTH);
320 device_printf(sc->sc_dev, "<%s> cannot allocate interrupt\n", key_name);
321 gpio_pin_release(key->pin);
328 if (bus_setup_intr(sc->sc_dev, key->irq_res, INTR_TYPE_MISC | INTR_MPSAFE,
329 NULL, gpiokey_intr, key,
330 &key->intr_hl) != 0) {
331 device_printf(sc->sc_dev, "<%s> unable to setup the irq handler\n", key_name);
332 bus_release_resource(sc->sc_dev, SYS_RES_IRQ, key->irq_rid,
334 gpio_pin_release(key->pin);
343 device_printf(sc->sc_dev, "<%s> code=%08x, autorepeat=%d, "\
344 "repeat=%d, repeat_delay=%d\n", key_name, key->keycode,
345 key->autorepeat, key->repeat, key->repeat_delay);
352 gpiokeys_detach_key(struct gpiokeys_softc *sc, struct gpiokey *key)
357 bus_teardown_intr(sc->sc_dev, key->irq_res, key->intr_hl);
359 bus_release_resource(sc->sc_dev, SYS_RES_IRQ,
360 key->irq_rid, key->irq_res);
361 if (callout_pending(&key->repeat_callout))
362 callout_drain(&key->repeat_callout);
363 if (callout_pending(&key->debounce_callout))
364 callout_drain(&key->debounce_callout);
366 gpio_pin_release(key->pin);
369 GPIOKEY_LOCK_DESTROY(key);
373 gpiokeys_probe(device_t dev)
375 if (!ofw_bus_is_compatible(dev, "gpio-keys"))
378 device_set_desc(dev, "GPIO keyboard");
384 gpiokeys_attach(device_t dev)
387 struct gpiokeys_softc *sc;
389 phandle_t keys, child;
392 if ((keys = ofw_bus_get_node(dev)) == -1)
395 sc = device_get_softc(dev);
399 GPIOKEYS_LOCK_INIT(sc);
400 unit = device_get_unit(dev);
401 kbd_init_struct(kbd, KBD_DRIVER_NAME, KB_OTHER, unit, 0, 0, 0);
403 kbd->kb_data = (void *)sc;
404 sc->sc_mode = K_XLATE;
406 sc->sc_keymap = key_map;
407 sc->sc_accmap = accent_map;
409 kbd_set_maps(kbd, &sc->sc_keymap, &sc->sc_accmap,
410 sc->sc_fkeymap, GPIOKEYS_GLOBAL_NFKEY);
412 KBD_FOUND_DEVICE(kbd);
414 gpiokeys_clear_state(kbd);
420 if (kbd_register(kbd) < 0) {
424 KBD_CONFIG_DONE(kbd);
426 gpiokeys_enable(kbd);
428 #ifdef KBD_INSTALL_CDEV
429 if (kbd_attach(kbd)) {
440 /* Traverse the 'gpio-keys' node and count keys */
441 for (child = OF_child(keys); child != 0; child = OF_peer(child)) {
442 if (!OF_hasprop(child, "gpios"))
448 sc->sc_keys = malloc(sizeof(struct gpiokey) * total_keys,
449 M_DEVBUF, M_WAITOK | M_ZERO);
451 sc->sc_total_keys = 0;
452 /* Traverse the 'gpio-keys' node and count keys */
453 for (child = OF_child(keys); child != 0; child = OF_peer(child)) {
454 if (!OF_hasprop(child, "gpios"))
456 gpiokeys_attach_key(sc, child ,&sc->sc_keys[sc->sc_total_keys]);
464 gpiokeys_detach(dev);
469 gpiokeys_detach(device_t dev)
471 struct gpiokeys_softc *sc;
475 sc = device_get_softc(dev);
477 for (i = 0; i < sc->sc_total_keys; i++)
478 gpiokeys_detach_key(sc, &sc->sc_keys[i]);
480 kbd = kbd_get_keyboard(kbd_find_keyboard(KBD_DRIVER_NAME,
481 device_get_unit(dev)));
483 #ifdef KBD_INSTALL_CDEV
488 GPIOKEYS_LOCK_DESTROY(sc);
490 free(sc->sc_keys, M_DEVBUF);
495 /* early keyboard probe, not supported */
497 gpiokeys_configure(int flags)
502 /* detect a keyboard, not used */
504 gpiokeys__probe(int unit, void *arg, int flags)
509 /* reset and initialize the device, not used */
511 gpiokeys_init(int unit, keyboard_t **kbdp, void *arg, int flags)
516 /* test the interface to the device, not used */
518 gpiokeys_test_if(keyboard_t *kbd)
523 /* finish using this keyboard, not used */
525 gpiokeys_term(keyboard_t *kbd)
530 /* keyboard interrupt routine, not used */
532 gpiokeys_intr(keyboard_t *kbd, void *arg)
537 /* lock the access to the keyboard, not used */
539 gpiokeys_lock(keyboard_t *kbd, int lock)
545 * Enable the access to the device; until this function is called,
546 * the client cannot read from the keyboard.
549 gpiokeys_enable(keyboard_t *kbd)
551 struct gpiokeys_softc *sc;
561 /* disallow the access to the device */
563 gpiokeys_disable(keyboard_t *kbd)
565 struct gpiokeys_softc *sc;
576 gpiokeys_do_poll(struct gpiokeys_softc *sc, uint8_t wait)
579 KASSERT((sc->sc_flags & GPIOKEYS_GLOBAL_FLAG_POLLING) != 0,
580 ("gpiokeys_do_poll called when not polling\n"));
582 GPIOKEYS_ASSERT_LOCKED(sc);
584 if (!kdb_active && !SCHEDULER_STOPPED()) {
585 while (sc->sc_inputs == 0) {
586 kern_yield(PRI_UNCHANGED);
593 while ((sc->sc_inputs == 0) && wait) {
598 /* check if data is waiting */
600 gpiokeys_check(keyboard_t *kbd)
602 struct gpiokeys_softc *sc = kbd->kb_data;
604 GPIOKEYS_ASSERT_LOCKED(sc);
606 if (!KBD_IS_ACTIVE(kbd))
609 if (sc->sc_flags & GPIOKEYS_GLOBAL_FLAG_POLLING)
610 gpiokeys_do_poll(sc, 0);
612 if (sc->sc_inputs > 0) {
618 /* check if char is waiting */
620 gpiokeys_check_char_locked(keyboard_t *kbd)
622 if (!KBD_IS_ACTIVE(kbd))
625 return (gpiokeys_check(kbd));
629 gpiokeys_check_char(keyboard_t *kbd)
632 struct gpiokeys_softc *sc = kbd->kb_data;
635 result = gpiokeys_check_char_locked(kbd);
642 gpiokeys_get_key(struct gpiokeys_softc *sc, uint8_t wait)
646 KASSERT((!kdb_active && !SCHEDULER_STOPPED())
647 || (sc->sc_flags & GPIOKEYS_GLOBAL_FLAG_POLLING) != 0,
648 ("not polling in kdb or panic\n"));
650 GPIOKEYS_ASSERT_LOCKED(sc);
652 if (sc->sc_flags & GPIOKEYS_GLOBAL_FLAG_POLLING)
653 gpiokeys_do_poll(sc, wait);
655 if (sc->sc_inputs == 0) {
658 c = sc->sc_input[sc->sc_inputhead];
660 ++(sc->sc_inputhead);
661 if (sc->sc_inputhead >= GPIOKEYS_GLOBAL_IN_BUF_SIZE) {
662 sc->sc_inputhead = 0;
669 /* read one byte from the keyboard if it's allowed */
671 gpiokeys_read(keyboard_t *kbd, int wait)
673 struct gpiokeys_softc *sc = kbd->kb_data;
676 if (!KBD_IS_ACTIVE(kbd))
680 keycode = gpiokeys_get_key(sc, (wait == FALSE) ? 0 : 1);
681 if (!KBD_IS_ACTIVE(kbd) || (keycode == -1))
689 /* read char from the keyboard */
691 gpiokeys_read_char_locked(keyboard_t *kbd, int wait)
693 struct gpiokeys_softc *sc = kbd->kb_data;
697 if (!KBD_IS_ACTIVE(kbd))
702 /* see if there is something in the keyboard port */
704 keycode = gpiokeys_get_key(sc, (wait == FALSE) ? 0 : 1);
707 /* return the byte as is for the K_RAW mode */
708 if (sc->sc_mode == K_RAW) {
712 /* return the key code in the K_CODE mode */
713 /* XXX: keycode |= SCAN_RELEASE; */
715 if (sc->sc_mode == K_CODE) {
719 /* keycode to key action */
720 action = genkbd_keyaction(kbd, SCAN_CHAR(keycode),
721 (keycode & SCAN_RELEASE),
722 &sc->sc_state, &sc->sc_accents);
723 if (action == NOKEY) {
730 /* Currently wait is always false. */
732 gpiokeys_read_char(keyboard_t *kbd, int wait)
735 struct gpiokeys_softc *sc = kbd->kb_data;
738 keycode = gpiokeys_read_char_locked(kbd, wait);
744 /* some useful control functions */
746 gpiokeys_ioctl_locked(keyboard_t *kbd, u_long cmd, caddr_t arg)
748 struct gpiokeys_softc *sc = kbd->kb_data;
749 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
750 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
756 case KDGKBMODE: /* get keyboard mode */
757 *(int *)arg = sc->sc_mode;
759 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
760 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
762 ival = IOCPARM_IVAL(arg);
763 arg = (caddr_t)&ival;
766 case KDSKBMODE: /* set keyboard mode */
767 switch (*(int *)arg) {
769 if (sc->sc_mode != K_XLATE) {
770 /* make lock key state and LED state match */
771 sc->sc_state &= ~LOCK_MASK;
772 sc->sc_state |= KBD_LED_VAL(kbd);
777 if (sc->sc_mode != *(int *)arg) {
778 if ((sc->sc_flags & GPIOKEYS_GLOBAL_FLAG_POLLING) == 0)
779 gpiokeys_clear_state(kbd);
780 sc->sc_mode = *(int *)arg;
788 case KDGETLED: /* get keyboard LED */
789 *(int *)arg = KBD_LED_VAL(kbd);
791 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
792 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
794 ival = IOCPARM_IVAL(arg);
795 arg = (caddr_t)&ival;
798 case KDSETLED: /* set keyboard LED */
799 KBD_LED_VAL(kbd) = *(int *)arg;
801 case KDGKBSTATE: /* get lock key state */
802 *(int *)arg = sc->sc_state & LOCK_MASK;
804 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
805 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
807 ival = IOCPARM_IVAL(arg);
808 arg = (caddr_t)&ival;
811 case KDSKBSTATE: /* set lock key state */
812 if (*(int *)arg & ~LOCK_MASK) {
815 sc->sc_state &= ~LOCK_MASK;
816 sc->sc_state |= *(int *)arg;
819 case KDSETREPEAT: /* set keyboard repeat rate (new
821 if (!KBD_HAS_DEVICE(kbd)) {
824 if (((int *)arg)[1] < 0) {
827 if (((int *)arg)[0] < 0) {
830 if (((int *)arg)[0] < 200) /* fastest possible value */
831 kbd->kb_delay1 = 200;
833 kbd->kb_delay1 = ((int *)arg)[0];
834 kbd->kb_delay2 = ((int *)arg)[1];
837 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
838 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
840 ival = IOCPARM_IVAL(arg);
841 arg = (caddr_t)&ival;
844 case KDSETRAD: /* set keyboard repeat rate (old
846 return (gpiokeys_set_typematic(kbd, *(int *)arg));
848 case PIO_KEYMAP: /* set keyboard translation table */
849 case OPIO_KEYMAP: /* set keyboard translation table
851 case PIO_KEYMAPENT: /* set keyboard translation table
853 case PIO_DEADKEYMAP: /* set accent key translation table */
857 return (genkbd_commonioctl(kbd, cmd, arg));
864 gpiokeys_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg)
867 struct gpiokeys_softc *sc;
871 * XXX Check if someone is calling us from a critical section:
873 if (curthread->td_critnest != 0)
877 result = gpiokeys_ioctl_locked(kbd, cmd, arg);
883 /* clear the internal state of the keyboard */
885 gpiokeys_clear_state(keyboard_t *kbd)
887 struct gpiokeys_softc *sc = kbd->kb_data;
889 sc->sc_flags &= ~(GPIOKEYS_GLOBAL_FLAG_POLLING);
890 sc->sc_state &= LOCK_MASK; /* preserve locking key state */
894 /* get the internal state, not used */
896 gpiokeys_get_state(keyboard_t *kbd, void *buf, size_t len)
898 return (len == 0) ? 1 : -1;
901 /* set the internal state, not used */
903 gpiokeys_set_state(keyboard_t *kbd, void *buf, size_t len)
909 gpiokeys_poll(keyboard_t *kbd, int on)
911 struct gpiokeys_softc *sc = kbd->kb_data;
915 sc->sc_flags |= GPIOKEYS_GLOBAL_FLAG_POLLING;
917 sc->sc_flags &= ~GPIOKEYS_GLOBAL_FLAG_POLLING;
924 gpiokeys_set_typematic(keyboard_t *kbd, int code)
926 static const int delays[] = {250, 500, 750, 1000};
927 static const int rates[] = {34, 38, 42, 46, 50, 55, 59, 63,
928 68, 76, 84, 92, 100, 110, 118, 126,
929 136, 152, 168, 184, 200, 220, 236, 252,
930 272, 304, 336, 368, 400, 440, 472, 504};
935 kbd->kb_delay1 = delays[(code >> 5) & 3];
936 kbd->kb_delay2 = rates[code & 0x1f];
941 gpiokeys_event_keyinput(struct gpiokeys_softc *sc)
945 if ((sc->sc_flags & GPIOKEYS_GLOBAL_FLAG_POLLING) != 0)
948 if (KBD_IS_ACTIVE(&sc->sc_kbd) &&
949 KBD_IS_BUSY(&sc->sc_kbd)) {
950 /* let the callback function process the input */
951 (sc->sc_kbd.kb_callback.kc_func) (&sc->sc_kbd, KBDIO_KEYINPUT,
952 sc->sc_kbd.kb_callback.kc_arg);
954 /* read and discard the input, no one is waiting for it */
956 c = gpiokeys_read_char(&sc->sc_kbd, 0);
957 } while (c != NOKEY);
961 static keyboard_switch_t gpiokeyssw = {
962 .probe = &gpiokeys__probe,
963 .init = &gpiokeys_init,
964 .term = &gpiokeys_term,
965 .intr = &gpiokeys_intr,
966 .test_if = &gpiokeys_test_if,
967 .enable = &gpiokeys_enable,
968 .disable = &gpiokeys_disable,
969 .read = &gpiokeys_read,
970 .check = &gpiokeys_check,
971 .read_char = &gpiokeys_read_char,
972 .check_char = &gpiokeys_check_char,
973 .ioctl = &gpiokeys_ioctl,
974 .lock = &gpiokeys_lock,
975 .clear_state = &gpiokeys_clear_state,
976 .get_state = &gpiokeys_get_state,
977 .set_state = &gpiokeys_set_state,
978 .poll = &gpiokeys_poll,
981 KEYBOARD_DRIVER(gpiokeys, gpiokeyssw, gpiokeys_configure);
984 gpiokeys_driver_load(module_t mod, int what, void *arg)
988 kbd_add_driver(&gpiokeys_kbd_driver);
991 kbd_delete_driver(&gpiokeys_kbd_driver);
997 static devclass_t gpiokeys_devclass;
999 static device_method_t gpiokeys_methods[] = {
1000 DEVMETHOD(device_probe, gpiokeys_probe),
1001 DEVMETHOD(device_attach, gpiokeys_attach),
1002 DEVMETHOD(device_detach, gpiokeys_detach),
1007 static driver_t gpiokeys_driver = {
1010 sizeof(struct gpiokeys_softc),
1013 DRIVER_MODULE(gpiokeys, simplebus, gpiokeys_driver, gpiokeys_devclass, gpiokeys_driver_load, 0);
1014 MODULE_VERSION(gpiokeys, 1);