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>
50 #include <dev/kbd/kbdreg.h>
51 #include <dev/kbd/kbdtables.h>
53 #include <dev/fdt/fdt_common.h>
54 #include <dev/ofw/ofw_bus.h>
55 #include <dev/ofw/ofw_bus_subr.h>
57 #include <dev/gpio/gpiobusvar.h>
58 #include <dev/gpio/gpiokeys.h>
60 #define KBD_DRIVER_NAME "gpiokeys"
62 #define GPIOKEYS_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx)
63 #define GPIOKEYS_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx)
64 #define GPIOKEYS_LOCK_INIT(_sc) \
65 mtx_init(&_sc->sc_mtx, device_get_nameunit((_sc)->sc_dev), \
67 #define GPIOKEYS_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->sc_mtx);
68 #define GPIOKEYS_ASSERT_LOCKED(_sc) mtx_assert(&(_sc)->sc_mtx, MA_OWNED)
70 #define GPIOKEY_LOCK(_key) mtx_lock(&(_key)->mtx)
71 #define GPIOKEY_UNLOCK(_key) mtx_unlock(&(_key)->mtx)
72 #define GPIOKEY_LOCK_INIT(_key) \
73 mtx_init(&(_key)->mtx, "gpiokey", "gpiokey", MTX_DEF)
74 #define GPIOKEY_LOCK_DESTROY(_key) mtx_destroy(&(_key)->mtx);
77 #define KEY_RELEASE 0x80
80 #define SCAN_RELEASE 0x80
81 #define SCAN_CHAR(c) ((c) & 0x7f)
83 #define GPIOKEYS_GLOBAL_NMOD 8 /* units */
84 #define GPIOKEYS_GLOBAL_NKEYCODE 6 /* units */
85 #define GPIOKEYS_GLOBAL_IN_BUF_SIZE (2*(GPIOKEYS_GLOBAL_NMOD + (2*GPIOKEYS_GLOBAL_NKEYCODE))) /* bytes */
86 #define GPIOKEYS_GLOBAL_IN_BUF_FULL (GPIOKEYS_GLOBAL_IN_BUF_SIZE / 2) /* bytes */
87 #define GPIOKEYS_GLOBAL_NFKEY (sizeof(fkey_tab)/sizeof(fkey_tab[0])) /* units */
88 #define GPIOKEYS_GLOBAL_BUFFER_SIZE 64 /* bytes */
90 #define AUTOREPEAT_DELAY 250
91 #define AUTOREPEAT_REPEAT 34
93 struct gpiokeys_softc;
97 struct gpiokeys_softc *parent_sc;
100 struct resource *irq_res;
105 struct callout debounce_callout;
106 struct callout repeat_callout;
109 int debounce_interval;
112 struct gpiokeys_softc
116 struct gpiokey *sc_keys;
121 accentmap_t sc_accmap;
122 fkeytab_t sc_fkeymap[GPIOKEYS_GLOBAL_NFKEY];
124 uint32_t sc_input[GPIOKEYS_GLOBAL_IN_BUF_SIZE]; /* input buffer */
126 #define GPIOKEYS_GLOBAL_FLAG_POLLING 0x00000002
128 uint32_t sc_flags; /* flags */
130 int sc_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */
131 int sc_state; /* shift/lock key state */
132 int sc_accents; /* accent key index (> 0) */
136 uint16_t sc_inputhead;
137 uint16_t sc_inputtail;
142 /* gpio-keys device */
143 static int gpiokeys_probe(device_t);
144 static int gpiokeys_attach(device_t);
145 static int gpiokeys_detach(device_t);
147 /* kbd methods prototypes */
148 static int gpiokeys_set_typematic(keyboard_t *, int);
149 static uint32_t gpiokeys_read_char(keyboard_t *, int);
150 static void gpiokeys_clear_state(keyboard_t *);
151 static int gpiokeys_ioctl(keyboard_t *, u_long, caddr_t);
152 static int gpiokeys_enable(keyboard_t *);
153 static int gpiokeys_disable(keyboard_t *);
154 static void gpiokeys_event_keyinput(struct gpiokeys_softc *);
157 gpiokeys_put_key(struct gpiokeys_softc *sc, uint32_t key)
160 GPIOKEYS_ASSERT_LOCKED(sc);
162 if (sc->sc_inputs < GPIOKEYS_GLOBAL_IN_BUF_SIZE) {
163 sc->sc_input[sc->sc_inputtail] = key;
165 ++(sc->sc_inputtail);
166 if (sc->sc_inputtail >= GPIOKEYS_GLOBAL_IN_BUF_SIZE) {
167 sc->sc_inputtail = 0;
170 device_printf(sc->sc_dev, "input buffer is full\n");
175 gpiokeys_key_event(struct gpiokeys_softc *sc, uint16_t keycode, int pressed)
180 key = keycode & SCAN_KEYCODE_MASK;
186 if (keycode & SCAN_PREFIX_E0)
187 gpiokeys_put_key(sc, 0xe0);
188 else if (keycode & SCAN_PREFIX_E1)
189 gpiokeys_put_key(sc, 0xe1);
191 gpiokeys_put_key(sc, key);
194 gpiokeys_event_keyinput(sc);
198 gpiokey_autorepeat(void *arg)
204 if (key->keycode == GPIOKEY_NONE)
207 gpiokeys_key_event(key->parent_sc, key->keycode, 1);
209 callout_reset(&key->repeat_callout, key->repeat,
210 gpiokey_autorepeat, key);
214 gpiokey_debounced_intr(void *arg)
221 if (key->keycode == GPIOKEY_NONE)
224 gpio_pin_is_active(key->pin, &active);
226 gpiokeys_key_event(key->parent_sc, key->keycode, 1);
227 if (key->autorepeat) {
228 callout_reset(&key->repeat_callout, key->repeat_delay,
229 gpiokey_autorepeat, key);
233 if (key->autorepeat &&
234 callout_pending(&key->repeat_callout))
235 callout_stop(&key->repeat_callout);
236 gpiokeys_key_event(key->parent_sc, key->keycode, 0);
241 gpiokey_intr(void *arg)
249 debounce_ticks = (hz * key->debounce_interval) / 1000;
250 if (debounce_ticks == 0)
252 if (!callout_pending(&key->debounce_callout))
253 callout_reset(&key->debounce_callout, debounce_ticks,
254 gpiokey_debounced_intr, key);
259 gpiokeys_attach_key(struct gpiokeys_softc *sc, phandle_t node,
266 const char *key_name;
268 GPIOKEY_LOCK_INIT(key);
270 callout_init_mtx(&key->debounce_callout, &key->mtx, 0);
271 callout_init_mtx(&key->repeat_callout, &key->mtx, 0);
274 if (OF_getprop_alloc(node, "label", (void **)&name) == -1)
275 OF_getprop_alloc(node, "name", (void **)&name);
280 key_name = "unknown";
282 key->autorepeat = OF_hasprop(node, "autorepeat");
284 key->repeat_delay = (hz * AUTOREPEAT_DELAY) / 1000;
285 if (key->repeat_delay == 0)
286 key->repeat_delay = 1;
288 key->repeat = (hz * AUTOREPEAT_REPEAT) / 1000;
289 if (key->repeat == 0)
292 if ((OF_getprop(node, "debounce-interval", &prop, sizeof(prop))) > 0)
293 key->debounce_interval = fdt32_to_cpu(prop);
295 key->debounce_interval = 5;
297 if ((OF_getprop(node, "freebsd,code", &prop, sizeof(prop))) > 0)
298 key->keycode = fdt32_to_cpu(prop);
299 else if ((OF_getprop(node, "linux,code", &prop, sizeof(prop))) > 0) {
300 code = fdt32_to_cpu(prop);
301 key->keycode = gpiokey_map_linux_code(code);
302 if (key->keycode == GPIOKEY_NONE)
303 device_printf(sc->sc_dev, "<%s> failed to map linux,code value 0x%x\n",
307 device_printf(sc->sc_dev, "<%s> no linux,code or freebsd,code property\n",
310 err = gpio_pin_get_by_ofw_idx(sc->sc_dev, node, 0, &key->pin);
312 device_printf(sc->sc_dev, "<%s> failed to map pin\n", key_name);
318 key->irq_res = gpio_alloc_intr_resource(sc->sc_dev, &key->irq_rid,
319 RF_ACTIVE, key->pin, GPIO_INTR_EDGE_BOTH);
321 device_printf(sc->sc_dev, "<%s> cannot allocate interrupt\n", key_name);
322 gpio_pin_release(key->pin);
329 if (bus_setup_intr(sc->sc_dev, key->irq_res, INTR_TYPE_MISC | INTR_MPSAFE,
330 NULL, gpiokey_intr, key,
331 &key->intr_hl) != 0) {
332 device_printf(sc->sc_dev, "<%s> unable to setup the irq handler\n", key_name);
333 bus_release_resource(sc->sc_dev, SYS_RES_IRQ, key->irq_rid,
335 gpio_pin_release(key->pin);
344 device_printf(sc->sc_dev, "<%s> code=%08x, autorepeat=%d, "\
345 "repeat=%d, repeat_delay=%d\n", key_name, key->keycode,
346 key->autorepeat, key->repeat, key->repeat_delay);
353 gpiokeys_detach_key(struct gpiokeys_softc *sc, struct gpiokey *key)
358 bus_teardown_intr(sc->sc_dev, key->irq_res, key->intr_hl);
360 bus_release_resource(sc->sc_dev, SYS_RES_IRQ,
361 key->irq_rid, key->irq_res);
362 if (callout_pending(&key->repeat_callout))
363 callout_drain(&key->repeat_callout);
364 if (callout_pending(&key->debounce_callout))
365 callout_drain(&key->debounce_callout);
367 gpio_pin_release(key->pin);
370 GPIOKEY_LOCK_DESTROY(key);
374 gpiokeys_probe(device_t dev)
376 if (!ofw_bus_is_compatible(dev, "gpio-keys"))
379 device_set_desc(dev, "GPIO keyboard");
385 gpiokeys_attach(device_t dev)
388 struct gpiokeys_softc *sc;
390 phandle_t keys, child;
393 if ((keys = ofw_bus_get_node(dev)) == -1)
396 sc = device_get_softc(dev);
400 GPIOKEYS_LOCK_INIT(sc);
401 unit = device_get_unit(dev);
402 kbd_init_struct(kbd, KBD_DRIVER_NAME, KB_OTHER, unit, 0, 0, 0);
404 kbd->kb_data = (void *)sc;
405 sc->sc_mode = K_XLATE;
407 sc->sc_keymap = key_map;
408 sc->sc_accmap = accent_map;
410 kbd_set_maps(kbd, &sc->sc_keymap, &sc->sc_accmap,
411 sc->sc_fkeymap, GPIOKEYS_GLOBAL_NFKEY);
413 KBD_FOUND_DEVICE(kbd);
415 gpiokeys_clear_state(kbd);
421 if (kbd_register(kbd) < 0) {
425 KBD_CONFIG_DONE(kbd);
427 gpiokeys_enable(kbd);
429 #ifdef KBD_INSTALL_CDEV
430 if (kbd_attach(kbd)) {
441 /* Traverse the 'gpio-keys' node and count keys */
442 for (child = OF_child(keys); child != 0; child = OF_peer(child)) {
443 if (!OF_hasprop(child, "gpios"))
449 sc->sc_keys = malloc(sizeof(struct gpiokey) * total_keys,
450 M_DEVBUF, M_WAITOK | M_ZERO);
452 sc->sc_total_keys = 0;
453 /* Traverse the 'gpio-keys' node and count keys */
454 for (child = OF_child(keys); child != 0; child = OF_peer(child)) {
455 if (!OF_hasprop(child, "gpios"))
457 gpiokeys_attach_key(sc, child ,&sc->sc_keys[sc->sc_total_keys]);
465 gpiokeys_detach(dev);
470 gpiokeys_detach(device_t dev)
472 struct gpiokeys_softc *sc;
476 sc = device_get_softc(dev);
478 for (i = 0; i < sc->sc_total_keys; i++)
479 gpiokeys_detach_key(sc, &sc->sc_keys[i]);
481 kbd = kbd_get_keyboard(kbd_find_keyboard(KBD_DRIVER_NAME,
482 device_get_unit(dev)));
484 #ifdef KBD_INSTALL_CDEV
489 GPIOKEYS_LOCK_DESTROY(sc);
491 free(sc->sc_keys, M_DEVBUF);
496 /* early keyboard probe, not supported */
498 gpiokeys_configure(int flags)
503 /* detect a keyboard, not used */
505 gpiokeys__probe(int unit, void *arg, int flags)
510 /* reset and initialize the device, not used */
512 gpiokeys_init(int unit, keyboard_t **kbdp, void *arg, int flags)
517 /* test the interface to the device, not used */
519 gpiokeys_test_if(keyboard_t *kbd)
524 /* finish using this keyboard, not used */
526 gpiokeys_term(keyboard_t *kbd)
531 /* keyboard interrupt routine, not used */
533 gpiokeys_intr(keyboard_t *kbd, void *arg)
538 /* lock the access to the keyboard, not used */
540 gpiokeys_lock(keyboard_t *kbd, int lock)
546 * Enable the access to the device; until this function is called,
547 * the client cannot read from the keyboard.
550 gpiokeys_enable(keyboard_t *kbd)
552 struct gpiokeys_softc *sc;
562 /* disallow the access to the device */
564 gpiokeys_disable(keyboard_t *kbd)
566 struct gpiokeys_softc *sc;
577 gpiokeys_do_poll(struct gpiokeys_softc *sc, uint8_t wait)
580 KASSERT((sc->sc_flags & GPIOKEYS_GLOBAL_FLAG_POLLING) != 0,
581 ("gpiokeys_do_poll called when not polling\n"));
583 GPIOKEYS_ASSERT_LOCKED(sc);
585 if (!kdb_active && !SCHEDULER_STOPPED()) {
586 while (sc->sc_inputs == 0) {
587 kern_yield(PRI_UNCHANGED);
594 while ((sc->sc_inputs == 0) && wait) {
599 /* check if data is waiting */
601 gpiokeys_check(keyboard_t *kbd)
603 struct gpiokeys_softc *sc = kbd->kb_data;
605 GPIOKEYS_ASSERT_LOCKED(sc);
607 if (!KBD_IS_ACTIVE(kbd))
610 if (sc->sc_flags & GPIOKEYS_GLOBAL_FLAG_POLLING)
611 gpiokeys_do_poll(sc, 0);
613 if (sc->sc_inputs > 0) {
619 /* check if char is waiting */
621 gpiokeys_check_char_locked(keyboard_t *kbd)
623 if (!KBD_IS_ACTIVE(kbd))
626 return (gpiokeys_check(kbd));
630 gpiokeys_check_char(keyboard_t *kbd)
633 struct gpiokeys_softc *sc = kbd->kb_data;
636 result = gpiokeys_check_char_locked(kbd);
643 gpiokeys_get_key(struct gpiokeys_softc *sc, uint8_t wait)
647 KASSERT((!kdb_active && !SCHEDULER_STOPPED())
648 || (sc->sc_flags & GPIOKEYS_GLOBAL_FLAG_POLLING) != 0,
649 ("not polling in kdb or panic\n"));
651 GPIOKEYS_ASSERT_LOCKED(sc);
653 if (sc->sc_flags & GPIOKEYS_GLOBAL_FLAG_POLLING)
654 gpiokeys_do_poll(sc, wait);
656 if (sc->sc_inputs == 0) {
659 c = sc->sc_input[sc->sc_inputhead];
661 ++(sc->sc_inputhead);
662 if (sc->sc_inputhead >= GPIOKEYS_GLOBAL_IN_BUF_SIZE) {
663 sc->sc_inputhead = 0;
670 /* read one byte from the keyboard if it's allowed */
672 gpiokeys_read(keyboard_t *kbd, int wait)
674 struct gpiokeys_softc *sc = kbd->kb_data;
677 if (!KBD_IS_ACTIVE(kbd))
681 keycode = gpiokeys_get_key(sc, (wait == FALSE) ? 0 : 1);
682 if (!KBD_IS_ACTIVE(kbd) || (keycode == -1))
690 /* read char from the keyboard */
692 gpiokeys_read_char_locked(keyboard_t *kbd, int wait)
694 struct gpiokeys_softc *sc = kbd->kb_data;
698 if (!KBD_IS_ACTIVE(kbd))
703 /* see if there is something in the keyboard port */
705 keycode = gpiokeys_get_key(sc, (wait == FALSE) ? 0 : 1);
708 /* return the byte as is for the K_RAW mode */
709 if (sc->sc_mode == K_RAW) {
713 /* return the key code in the K_CODE mode */
714 /* XXX: keycode |= SCAN_RELEASE; */
716 if (sc->sc_mode == K_CODE) {
720 /* keycode to key action */
721 action = genkbd_keyaction(kbd, SCAN_CHAR(keycode),
722 (keycode & SCAN_RELEASE),
723 &sc->sc_state, &sc->sc_accents);
724 if (action == NOKEY) {
731 /* Currently wait is always false. */
733 gpiokeys_read_char(keyboard_t *kbd, int wait)
736 struct gpiokeys_softc *sc = kbd->kb_data;
739 keycode = gpiokeys_read_char_locked(kbd, wait);
745 /* some useful control functions */
747 gpiokeys_ioctl_locked(keyboard_t *kbd, u_long cmd, caddr_t arg)
749 struct gpiokeys_softc *sc = kbd->kb_data;
750 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
751 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
757 case KDGKBMODE: /* get keyboard mode */
758 *(int *)arg = sc->sc_mode;
760 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
761 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
763 ival = IOCPARM_IVAL(arg);
764 arg = (caddr_t)&ival;
767 case KDSKBMODE: /* set keyboard mode */
768 switch (*(int *)arg) {
770 if (sc->sc_mode != K_XLATE) {
771 /* make lock key state and LED state match */
772 sc->sc_state &= ~LOCK_MASK;
773 sc->sc_state |= KBD_LED_VAL(kbd);
778 if (sc->sc_mode != *(int *)arg) {
779 if ((sc->sc_flags & GPIOKEYS_GLOBAL_FLAG_POLLING) == 0)
780 gpiokeys_clear_state(kbd);
781 sc->sc_mode = *(int *)arg;
789 case KDGETLED: /* get keyboard LED */
790 *(int *)arg = KBD_LED_VAL(kbd);
792 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
793 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
795 ival = IOCPARM_IVAL(arg);
796 arg = (caddr_t)&ival;
799 case KDSETLED: /* set keyboard LED */
800 KBD_LED_VAL(kbd) = *(int *)arg;
802 case KDGKBSTATE: /* get lock key state */
803 *(int *)arg = sc->sc_state & LOCK_MASK;
805 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
806 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
808 ival = IOCPARM_IVAL(arg);
809 arg = (caddr_t)&ival;
812 case KDSKBSTATE: /* set lock key state */
813 if (*(int *)arg & ~LOCK_MASK) {
816 sc->sc_state &= ~LOCK_MASK;
817 sc->sc_state |= *(int *)arg;
820 case KDSETREPEAT: /* set keyboard repeat rate (new
822 if (!KBD_HAS_DEVICE(kbd)) {
825 if (((int *)arg)[1] < 0) {
828 if (((int *)arg)[0] < 0) {
831 if (((int *)arg)[0] < 200) /* fastest possible value */
832 kbd->kb_delay1 = 200;
834 kbd->kb_delay1 = ((int *)arg)[0];
835 kbd->kb_delay2 = ((int *)arg)[1];
838 #if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
839 defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
841 ival = IOCPARM_IVAL(arg);
842 arg = (caddr_t)&ival;
845 case KDSETRAD: /* set keyboard repeat rate (old
847 return (gpiokeys_set_typematic(kbd, *(int *)arg));
849 case PIO_KEYMAP: /* set keyboard translation table */
850 case OPIO_KEYMAP: /* set keyboard translation table
852 case PIO_KEYMAPENT: /* set keyboard translation table
854 case PIO_DEADKEYMAP: /* set accent key translation table */
858 return (genkbd_commonioctl(kbd, cmd, arg));
865 gpiokeys_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg)
868 struct gpiokeys_softc *sc;
872 * XXX Check if someone is calling us from a critical section:
874 if (curthread->td_critnest != 0)
878 result = gpiokeys_ioctl_locked(kbd, cmd, arg);
884 /* clear the internal state of the keyboard */
886 gpiokeys_clear_state(keyboard_t *kbd)
888 struct gpiokeys_softc *sc = kbd->kb_data;
890 sc->sc_flags &= ~(GPIOKEYS_GLOBAL_FLAG_POLLING);
891 sc->sc_state &= LOCK_MASK; /* preserve locking key state */
895 /* get the internal state, not used */
897 gpiokeys_get_state(keyboard_t *kbd, void *buf, size_t len)
899 return (len == 0) ? 1 : -1;
902 /* set the internal state, not used */
904 gpiokeys_set_state(keyboard_t *kbd, void *buf, size_t len)
910 gpiokeys_poll(keyboard_t *kbd, int on)
912 struct gpiokeys_softc *sc = kbd->kb_data;
916 sc->sc_flags |= GPIOKEYS_GLOBAL_FLAG_POLLING;
918 sc->sc_flags &= ~GPIOKEYS_GLOBAL_FLAG_POLLING;
925 gpiokeys_set_typematic(keyboard_t *kbd, int code)
927 static const int delays[] = {250, 500, 750, 1000};
928 static const int rates[] = {34, 38, 42, 46, 50, 55, 59, 63,
929 68, 76, 84, 92, 100, 110, 118, 126,
930 136, 152, 168, 184, 200, 220, 236, 252,
931 272, 304, 336, 368, 400, 440, 472, 504};
936 kbd->kb_delay1 = delays[(code >> 5) & 3];
937 kbd->kb_delay2 = rates[code & 0x1f];
942 gpiokeys_event_keyinput(struct gpiokeys_softc *sc)
946 if ((sc->sc_flags & GPIOKEYS_GLOBAL_FLAG_POLLING) != 0)
949 if (KBD_IS_ACTIVE(&sc->sc_kbd) &&
950 KBD_IS_BUSY(&sc->sc_kbd)) {
951 /* let the callback function process the input */
952 (sc->sc_kbd.kb_callback.kc_func) (&sc->sc_kbd, KBDIO_KEYINPUT,
953 sc->sc_kbd.kb_callback.kc_arg);
955 /* read and discard the input, no one is waiting for it */
957 c = gpiokeys_read_char(&sc->sc_kbd, 0);
958 } while (c != NOKEY);
962 static keyboard_switch_t gpiokeyssw = {
963 .probe = &gpiokeys__probe,
964 .init = &gpiokeys_init,
965 .term = &gpiokeys_term,
966 .intr = &gpiokeys_intr,
967 .test_if = &gpiokeys_test_if,
968 .enable = &gpiokeys_enable,
969 .disable = &gpiokeys_disable,
970 .read = &gpiokeys_read,
971 .check = &gpiokeys_check,
972 .read_char = &gpiokeys_read_char,
973 .check_char = &gpiokeys_check_char,
974 .ioctl = &gpiokeys_ioctl,
975 .lock = &gpiokeys_lock,
976 .clear_state = &gpiokeys_clear_state,
977 .get_state = &gpiokeys_get_state,
978 .set_state = &gpiokeys_set_state,
979 .get_fkeystr = &genkbd_get_fkeystr,
980 .poll = &gpiokeys_poll,
981 .diag = &genkbd_diag,
984 KEYBOARD_DRIVER(gpiokeys, gpiokeyssw, gpiokeys_configure);
987 gpiokeys_driver_load(module_t mod, int what, void *arg)
991 kbd_add_driver(&gpiokeys_kbd_driver);
994 kbd_delete_driver(&gpiokeys_kbd_driver);
1000 static devclass_t gpiokeys_devclass;
1002 static device_method_t gpiokeys_methods[] = {
1003 DEVMETHOD(device_probe, gpiokeys_probe),
1004 DEVMETHOD(device_attach, gpiokeys_attach),
1005 DEVMETHOD(device_detach, gpiokeys_detach),
1010 static driver_t gpiokeys_driver = {
1013 sizeof(struct gpiokeys_softc),
1016 DRIVER_MODULE(gpiokeys, simplebus, gpiokeys_driver, gpiokeys_devclass, gpiokeys_driver_load, 0);
1017 MODULE_VERSION(gpiokeys, 1);