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/*-
* Copyright (C) 2008 Nathan Whitehorn
* 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 ``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 TOOLS GMBH 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: release/9.1.0/sys/dev/adb/adb_kbd.c 237773 2012-06-29 10:39:42Z jhibbits $
*/
#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/kbio.h>
#include <sys/condvar.h>
#include <sys/callout.h>
#include <sys/kernel.h>
#include <sys/sysctl.h>
#include <machine/bus.h>
#include "opt_kbd.h"
#include <dev/kbd/kbdreg.h>
#include <dev/kbd/kbdtables.h>
#include <dev/ofw/openfirm.h>
#include <dev/ofw/ofw_bus.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include "adb.h"
#define KBD_DRIVER_NAME "akbd"
#define AKBD_EMULATE_ATKBD 1
static int adb_kbd_probe(device_t dev);
static int adb_kbd_attach(device_t dev);
static int adb_kbd_detach(device_t dev);
static void akbd_repeat(void *xsc);
static int adb_fn_keys(SYSCTL_HANDLER_ARGS);
static u_int adb_kbd_receive_packet(device_t dev, u_char status,
u_char command, u_char reg, int len, u_char *data);
struct adb_kbd_softc {
keyboard_t sc_kbd;
device_t sc_dev;
struct mtx sc_mutex;
struct cv sc_cv;
int sc_mode;
int sc_state;
int have_led_control;
uint8_t buffer[8];
#ifdef AKBD_EMULATE_ATKBD
uint8_t at_buffered_char[2];
#endif
volatile int buffers;
struct callout sc_repeater;
int sc_repeatstart;
int sc_repeatcontinue;
uint8_t last_press;
};
static device_method_t adb_kbd_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, adb_kbd_probe),
DEVMETHOD(device_attach, adb_kbd_attach),
DEVMETHOD(device_detach, adb_kbd_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
/* ADB interface */
DEVMETHOD(adb_receive_packet, adb_kbd_receive_packet),
{ 0, 0 }
};
static driver_t adb_kbd_driver = {
"akbd",
adb_kbd_methods,
sizeof(struct adb_kbd_softc),
};
static devclass_t adb_kbd_devclass;
DRIVER_MODULE(akbd, adb, adb_kbd_driver, adb_kbd_devclass, 0, 0);
#ifdef AKBD_EMULATE_ATKBD
#define SCAN_PRESS 0x000
#define SCAN_RELEASE 0x080
#define SCAN_PREFIX_E0 0x100
#define SCAN_PREFIX_E1 0x200
#define SCAN_PREFIX_CTL 0x400
#define SCAN_PREFIX_SHIFT 0x800
#define SCAN_PREFIX (SCAN_PREFIX_E0 | SCAN_PREFIX_E1 | \
SCAN_PREFIX_CTL | SCAN_PREFIX_SHIFT)
static const uint8_t adb_to_at_scancode_map[128] = { 30, 31, 32, 33, 35, 34,
44, 45, 46, 47, 0, 48, 16, 17, 18, 19, 21, 20, 2, 3, 4, 5, 7, 6, 13,
10, 8, 12, 9, 11, 27, 24, 22, 26, 23, 25, 28, 38, 36, 40, 37, 39, 43,
51, 53, 49, 50, 52, 15, 57, 41, 14, 0, 1, 29, 0, 42, 58, 56, 97, 98,
100, 95, 0, 0, 83, 0, 55, 0, 78, 0, 69, 0, 0, 0, 91, 89, 0, 74, 13, 0,
0, 82, 79, 80, 81, 75, 76, 77, 71, 0, 72, 73, 0, 0, 0, 63, 64, 65, 61,
66, 67, 0, 87, 0, 105, 0, 70, 0, 68, 0, 88, 0, 107, 102, 94, 96, 103,
62, 99, 60, 101, 59, 54, 93, 90, 0, 0 };
static int
keycode2scancode(int keycode, int shift, int up)
{
static const int scan[] = {
/* KP enter, right ctrl, KP divide */
0x1c , 0x1d , 0x35 ,
/* print screen */
0x37 | SCAN_PREFIX_SHIFT,
/* right alt, home, up, page up, left, right, end */
0x38, 0x47, 0x48, 0x49, 0x4b, 0x4d, 0x4f,
/* down, page down, insert, delete */
0x50, 0x51, 0x52, 0x53,
/* pause/break (see also below) */
0x46,
/*
* MS: left window, right window, menu
* also Sun: left meta, right meta, compose
*/
0x5b, 0x5c, 0x5d,
/* Sun type 6 USB */
/* help, stop, again, props, undo, front, copy */
0x68, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63,
/* open, paste, find, cut, audiomute, audiolower, audioraise */
0x64, 0x65, 0x66, 0x67, 0x25, 0x1f, 0x1e,
/* power */
0x20
};
int scancode;
scancode = keycode;
if ((keycode >= 89) && (keycode < 89 + sizeof(scan) / sizeof(scan[0])))
scancode = scan[keycode - 89] | SCAN_PREFIX_E0;
/* pause/break */
if ((keycode == 104) && !(shift & CTLS))
scancode = 0x45 | SCAN_PREFIX_E1 | SCAN_PREFIX_CTL;
if (shift & SHIFTS)
scancode &= ~SCAN_PREFIX_SHIFT;
return (scancode | (up ? SCAN_RELEASE : SCAN_PRESS));
}
#endif
/* keyboard driver declaration */
static int akbd_configure(int flags);
static kbd_probe_t akbd_probe;
static kbd_init_t akbd_init;
static kbd_term_t akbd_term;
static kbd_intr_t akbd_interrupt;
static kbd_test_if_t akbd_test_if;
static kbd_enable_t akbd_enable;
static kbd_disable_t akbd_disable;
static kbd_read_t akbd_read;
static kbd_check_t akbd_check;
static kbd_read_char_t akbd_read_char;
static kbd_check_char_t akbd_check_char;
static kbd_ioctl_t akbd_ioctl;
static kbd_lock_t akbd_lock;
static kbd_clear_state_t akbd_clear_state;
static kbd_get_state_t akbd_get_state;
static kbd_set_state_t akbd_set_state;
static kbd_poll_mode_t akbd_poll;
keyboard_switch_t akbdsw = {
akbd_probe,
akbd_init,
akbd_term,
akbd_interrupt,
akbd_test_if,
akbd_enable,
akbd_disable,
akbd_read,
akbd_check,
akbd_read_char,
akbd_check_char,
akbd_ioctl,
akbd_lock,
akbd_clear_state,
akbd_get_state,
akbd_set_state,
genkbd_get_fkeystr,
akbd_poll,
genkbd_diag,
};
KEYBOARD_DRIVER(akbd, akbdsw, akbd_configure);
static int
adb_kbd_probe(device_t dev)
{
uint8_t type;
type = adb_get_device_type(dev);
if (type != ADB_DEVICE_KEYBOARD)
return (ENXIO);
switch(adb_get_device_handler(dev)) {
case 1:
device_set_desc(dev,"Apple Standard Keyboard");
break;
case 2:
device_set_desc(dev,"Apple Extended Keyboard");
break;
case 4:
device_set_desc(dev,"Apple ISO Keyboard");
break;
case 5:
device_set_desc(dev,"Apple Extended ISO Keyboard");
break;
case 8:
device_set_desc(dev,"Apple Keyboard II");
break;
case 9:
device_set_desc(dev,"Apple ISO Keyboard II");
break;
case 12:
device_set_desc(dev,"PowerBook Keyboard");
break;
case 13:
device_set_desc(dev,"PowerBook ISO Keyboard");
break;
case 24:
device_set_desc(dev,"PowerBook Extended Keyboard");
break;
case 27:
device_set_desc(dev,"Apple Design Keyboard");
break;
case 195:
device_set_desc(dev,"PowerBook G3 Keyboard");
break;
case 196:
device_set_desc(dev,"iBook Keyboard");
break;
default:
device_set_desc(dev,"ADB Keyboard");
break;
}
return (0);
}
static int
ms_to_ticks(int ms)
{
if (hz > 1000)
return ms*(hz/1000);
return ms/(1000/hz);
}
static int
adb_kbd_attach(device_t dev)
{
struct adb_kbd_softc *sc;
keyboard_switch_t *sw;
uint32_t fkeys;
phandle_t handle;
sw = kbd_get_switch(KBD_DRIVER_NAME);
if (sw == NULL) {
return ENXIO;
}
sc = device_get_softc(dev);
sc->sc_dev = dev;
sc->sc_mode = K_RAW;
sc->sc_state = 0;
sc->have_led_control = 0;
sc->buffers = 0;
/* Try stepping forward to the extended keyboard protocol */
adb_set_device_handler(dev,3);
mtx_init(&sc->sc_mutex,KBD_DRIVER_NAME,MTX_DEF,0);
cv_init(&sc->sc_cv,KBD_DRIVER_NAME);
callout_init(&sc->sc_repeater, 0);
#ifdef AKBD_EMULATE_ATKBD
kbd_init_struct(&sc->sc_kbd, KBD_DRIVER_NAME, KB_101, 0, 0, 0, 0);
kbd_set_maps(&sc->sc_kbd, &key_map, &accent_map, fkey_tab,
sizeof(fkey_tab) / sizeof(fkey_tab[0]));
#else
#error ADB raw mode not implemented
#endif
KBD_FOUND_DEVICE(&sc->sc_kbd);
KBD_PROBE_DONE(&sc->sc_kbd);
KBD_INIT_DONE(&sc->sc_kbd);
KBD_CONFIG_DONE(&sc->sc_kbd);
(*sw->enable)(&sc->sc_kbd);
kbd_register(&sc->sc_kbd);
#ifdef KBD_INSTALL_CDEV
if (kbd_attach(&sc->sc_kbd)) {
adb_kbd_detach(dev);
return ENXIO;
}
#endif
/* Check if we can read out the LED state from
this keyboard by reading the key state register */
if (adb_read_register(dev, 2, NULL) == 2)
sc->have_led_control = 1;
adb_set_autopoll(dev,1);
handle = OF_finddevice("mac-io/via-pmu/adb/keyboard");
if (handle != -1 && OF_getprop(handle, "AAPL,has-embedded-fn-keys",
&fkeys, sizeof(fkeys)) != -1) {
static const char *key_names[] = {"F1", "F2", "F3", "F4", "F5",
"F6", "F7", "F8", "F9", "F10", "F11", "F12"};
struct sysctl_ctx_list *ctx;
struct sysctl_oid *tree;
int i;
if (bootverbose)
device_printf(dev, "Keyboard has embedded Fn keys\n");
for (i = 0; i < 12; i++) {
uint32_t keyval;
char buf[3];
if (OF_getprop(handle, key_names[i], &keyval,
sizeof(keyval)) < 0)
continue;
buf[0] = 1;
buf[1] = i+1;
buf[2] = keyval;
adb_write_register(dev, 0, 3, buf);
}
adb_write_register(dev, 1, 2, &(uint16_t){0});
ctx = device_get_sysctl_ctx(dev);
tree = device_get_sysctl_tree(dev);
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"fn_keys_function_as_primary", CTLTYPE_INT | CTLFLAG_RW, sc,
0, adb_fn_keys, "I",
"Set the Fn keys to be their F-key type as default");
}
return (0);
}
static int
adb_kbd_detach(device_t dev)
{
struct adb_kbd_softc *sc;
keyboard_t *kbd;
sc = device_get_softc(dev);
adb_set_autopoll(dev,0);
callout_stop(&sc->sc_repeater);
mtx_lock(&sc->sc_mutex);
kbd = kbd_get_keyboard(kbd_find_keyboard(KBD_DRIVER_NAME,
device_get_unit(dev)));
kbdd_disable(kbd);
#ifdef KBD_INSTALL_CDEV
kbd_detach(kbd);
#endif
kbdd_term(kbd);
mtx_unlock(&sc->sc_mutex);
mtx_destroy(&sc->sc_mutex);
cv_destroy(&sc->sc_cv);
return (0);
}
static u_int
adb_kbd_receive_packet(device_t dev, u_char status,
u_char command, u_char reg, int len, u_char *data)
{
struct adb_kbd_softc *sc;
sc = device_get_softc(dev);
if (command != ADB_COMMAND_TALK)
return 0;
if (reg != 0 || len != 2)
return (0);
mtx_lock(&sc->sc_mutex);
/* 0x7f is always the power button */
if (data[0] == 0x7f && devctl_process_running()) {
devctl_notify("PMU", "Button", "pressed", NULL);
mtx_unlock(&sc->sc_mutex);
return (0);
} else if (data[0] == 0xff) {
mtx_unlock(&sc->sc_mutex);
return (0); /* Ignore power button release. */
}
if ((data[0] & 0x7f) == 57 && sc->buffers < 7) {
/* Fake the down/up cycle for caps lock */
sc->buffer[sc->buffers++] = data[0] & 0x7f;
sc->buffer[sc->buffers++] = (data[0] & 0x7f) | (1 << 7);
} else {
sc->buffer[sc->buffers++] = data[0];
}
if (sc->buffer[sc->buffers-1] < 0xff)
sc->last_press = sc->buffer[sc->buffers-1];
if ((data[1] & 0x7f) == 57 && sc->buffers < 7) {
/* Fake the down/up cycle for caps lock */
sc->buffer[sc->buffers++] = data[1] & 0x7f;
sc->buffer[sc->buffers++] = (data[1] & 0x7f) | (1 << 7);
} else {
sc->buffer[sc->buffers++] = data[1];
}
if (sc->buffer[sc->buffers-1] < 0xff)
sc->last_press = sc->buffer[sc->buffers-1];
/* Stop any existing key repeating */
callout_stop(&sc->sc_repeater);
/* Schedule a repeat callback on keydown */
if (!(sc->last_press & (1 << 7))) {
callout_reset(&sc->sc_repeater,
ms_to_ticks(sc->sc_kbd.kb_delay1), akbd_repeat, sc);
}
mtx_unlock(&sc->sc_mutex);
cv_broadcast(&sc->sc_cv);
if (KBD_IS_ACTIVE(&sc->sc_kbd) && KBD_IS_BUSY(&sc->sc_kbd)) {
sc->sc_kbd.kb_callback.kc_func(&sc->sc_kbd,
KBDIO_KEYINPUT, sc->sc_kbd.kb_callback.kc_arg);
}
return (0);
}
static void
akbd_repeat(void *xsc) {
struct adb_kbd_softc *sc = xsc;
int notify_kbd = 0;
/* Fake an up/down key repeat so long as we have the
free buffers */
mtx_lock(&sc->sc_mutex);
if (sc->buffers < 7) {
sc->buffer[sc->buffers++] = sc->last_press | (1 << 7);
sc->buffer[sc->buffers++] = sc->last_press;
notify_kbd = 1;
}
mtx_unlock(&sc->sc_mutex);
if (notify_kbd && KBD_IS_ACTIVE(&sc->sc_kbd)
&& KBD_IS_BUSY(&sc->sc_kbd)) {
sc->sc_kbd.kb_callback.kc_func(&sc->sc_kbd,
KBDIO_KEYINPUT, sc->sc_kbd.kb_callback.kc_arg);
}
/* Reschedule the callout */
callout_reset(&sc->sc_repeater, ms_to_ticks(sc->sc_kbd.kb_delay2),
akbd_repeat, sc);
}
static int
akbd_configure(int flags)
{
return 0;
}
static int
akbd_probe(int unit, void *arg, int flags)
{
return 0;
}
static int
akbd_init(int unit, keyboard_t **kbdp, void *arg, int flags)
{
return 0;
}
static int
akbd_term(keyboard_t *kbd)
{
return 0;
}
static int
akbd_interrupt(keyboard_t *kbd, void *arg)
{
return 0;
}
static int
akbd_test_if(keyboard_t *kbd)
{
return 0;
}
static int
akbd_enable(keyboard_t *kbd)
{
KBD_ACTIVATE(kbd);
return (0);
}
static int
akbd_disable(keyboard_t *kbd)
{
struct adb_kbd_softc *sc;
sc = (struct adb_kbd_softc *)(kbd);
callout_stop(&sc->sc_repeater);
KBD_DEACTIVATE(kbd);
return (0);
}
static int
akbd_read(keyboard_t *kbd, int wait)
{
return (0);
}
static int
akbd_check(keyboard_t *kbd)
{
struct adb_kbd_softc *sc;
if (!KBD_IS_ACTIVE(kbd))
return (FALSE);
sc = (struct adb_kbd_softc *)(kbd);
mtx_lock(&sc->sc_mutex);
#ifdef AKBD_EMULATE_ATKBD
if (sc->at_buffered_char[0]) {
mtx_unlock(&sc->sc_mutex);
return (TRUE);
}
#endif
if (sc->buffers > 0) {
mtx_unlock(&sc->sc_mutex);
return (TRUE);
}
mtx_unlock(&sc->sc_mutex);
return (FALSE);
}
static u_int
akbd_read_char(keyboard_t *kbd, int wait)
{
struct adb_kbd_softc *sc;
uint16_t key;
uint8_t adb_code;
int i;
sc = (struct adb_kbd_softc *)(kbd);
mtx_lock(&sc->sc_mutex);
#if defined(AKBD_EMULATE_ATKBD)
if (sc->sc_mode == K_RAW && sc->at_buffered_char[0]) {
key = sc->at_buffered_char[0];
if (key & SCAN_PREFIX) {
sc->at_buffered_char[0] = key & ~SCAN_PREFIX;
key = (key & SCAN_PREFIX_E0) ? 0xe0 : 0xe1;
} else {
sc->at_buffered_char[0] = sc->at_buffered_char[1];
sc->at_buffered_char[1] = 0;
}
mtx_unlock(&sc->sc_mutex);
return (key);
}
#endif
if (!sc->buffers && wait)
cv_wait(&sc->sc_cv,&sc->sc_mutex);
if (!sc->buffers) {
mtx_unlock(&sc->sc_mutex);
return (0);
}
adb_code = sc->buffer[0];
for (i = 1; i < sc->buffers; i++)
sc->buffer[i-1] = sc->buffer[i];
sc->buffers--;
#ifdef AKBD_EMULATE_ATKBD
key = adb_to_at_scancode_map[adb_code & 0x7f];
if (sc->sc_mode == K_CODE) {
/* Add the key-release bit */
key |= adb_code & 0x80;
} else if (sc->sc_mode == K_RAW) {
/*
* In the raw case, we have to emulate the gross
* variable-length AT keyboard thing. Since this code
* is copied from sunkbd, which is the same code
* as ukbd, it might be nice to have this centralized.
*/
key = keycode2scancode(key,
0, adb_code & 0x80);
if (key & SCAN_PREFIX) {
if (key & SCAN_PREFIX_CTL) {
sc->at_buffered_char[0] =
0x1d | (key & SCAN_RELEASE);
sc->at_buffered_char[1] =
key & ~SCAN_PREFIX;
} else if (key & SCAN_PREFIX_SHIFT) {
sc->at_buffered_char[0] =
0x2a | (key & SCAN_RELEASE);
sc->at_buffered_char[1] =
key & ~SCAN_PREFIX_SHIFT;
} else {
sc->at_buffered_char[0] =
key & ~SCAN_PREFIX;
sc->at_buffered_char[1] = 0;
}
key = (key & SCAN_PREFIX_E0) ? 0xe0 : 0xe1;
}
}
#else
key = adb_code;
#endif
mtx_unlock(&sc->sc_mutex);
return (key);
}
static int
akbd_check_char(keyboard_t *kbd)
{
if (!KBD_IS_ACTIVE(kbd))
return (FALSE);
return (akbd_check(kbd));
}
static int
set_typematic(keyboard_t *kbd, int code)
{
/* These numbers are in microseconds, so convert to ticks */
static int delays[] = { 250, 500, 750, 1000 };
static int rates[] = { 34, 38, 42, 46, 50, 55, 59, 63,
68, 76, 84, 92, 100, 110, 118, 126,
136, 152, 168, 184, 200, 220, 236, 252,
272, 304, 336, 368, 400, 440, 472, 504 };
if (code & ~0x7f)
return EINVAL;
kbd->kb_delay1 = delays[(code >> 5) & 3];
kbd->kb_delay2 = rates[code & 0x1f];
return 0;
}
static int akbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t data)
{
struct adb_kbd_softc *sc;
uint16_t r2;
int error;
sc = (struct adb_kbd_softc *)(kbd);
error = 0;
switch (cmd) {
case KDGKBMODE:
*(int *)data = sc->sc_mode;
break;
case KDSKBMODE:
switch (*(int *)data) {
case K_XLATE:
if (sc->sc_mode != K_XLATE) {
/* make lock key state and LED state match */
sc->sc_state &= ~LOCK_MASK;
sc->sc_state |= KBD_LED_VAL(kbd);
}
/* FALLTHROUGH */
case K_RAW:
case K_CODE:
if (sc->sc_mode != *(int *)data)
sc->sc_mode = *(int *)data;
break;
default:
error = EINVAL;
break;
}
break;
case KDGETLED:
*(int *)data = KBD_LED_VAL(kbd);
break;
case KDSKBSTATE:
if (*(int *)data & ~LOCK_MASK) {
error = EINVAL;
break;
}
sc->sc_state &= ~LOCK_MASK;
sc->sc_state |= *(int *)data;
/* FALLTHROUGH */
case KDSETLED:
KBD_LED_VAL(kbd) = *(int *)data;
if (!sc->have_led_control)
break;
r2 = (~0 & 0x04) | 3;
if (*(int *)data & NLKED)
r2 &= ~1;
if (*(int *)data & CLKED)
r2 &= ~2;
if (*(int *)data & SLKED)
r2 &= ~4;
adb_send_packet(sc->sc_dev,ADB_COMMAND_LISTEN,2,
sizeof(uint16_t),(u_char *)&r2);
break;
case KDGKBSTATE:
*(int *)data = sc->sc_state & LOCK_MASK;
break;
case KDSETREPEAT:
if (!KBD_HAS_DEVICE(kbd))
return 0;
if (((int *)data)[1] < 0)
return EINVAL;
if (((int *)data)[0] < 0)
return EINVAL;
else if (((int *)data)[0] == 0) /* fastest possible value */
kbd->kb_delay1 = 200;
else
kbd->kb_delay1 = ((int *)data)[0];
kbd->kb_delay2 = ((int *)data)[1];
break;
case KDSETRAD:
error = set_typematic(kbd, *(int *)data);
break;
case PIO_KEYMAP:
case OPIO_KEYMAP:
case PIO_KEYMAPENT:
case PIO_DEADKEYMAP:
default:
return (genkbd_commonioctl(kbd, cmd, data));
}
return (error);
}
static int akbd_lock(keyboard_t *kbd, int lock)
{
return (0);
}
static void akbd_clear_state(keyboard_t *kbd)
{
struct adb_kbd_softc *sc;
sc = (struct adb_kbd_softc *)(kbd);
mtx_lock(&sc->sc_mutex);
sc->buffers = 0;
callout_stop(&sc->sc_repeater);
#if defined(AKBD_EMULATE_ATKBD)
sc->at_buffered_char[0] = 0;
sc->at_buffered_char[1] = 0;
#endif
mtx_unlock(&sc->sc_mutex);
}
static int akbd_get_state(keyboard_t *kbd, void *buf, size_t len)
{
return (0);
}
static int akbd_set_state(keyboard_t *kbd, void *buf, size_t len)
{
return (0);
}
static int akbd_poll(keyboard_t *kbd, int on)
{
return (0);
}
static int
akbd_modevent(module_t mod, int type, void *data)
{
switch (type) {
case MOD_LOAD:
kbd_add_driver(&akbd_kbd_driver);
break;
case MOD_UNLOAD:
kbd_delete_driver(&akbd_kbd_driver);
break;
default:
return (EOPNOTSUPP);
}
return (0);
}
static int
adb_fn_keys(SYSCTL_HANDLER_ARGS)
{
struct adb_kbd_softc *sc = arg1;
int error;
uint16_t is_fn_enabled;
unsigned int is_fn_enabled_sysctl;
adb_read_register(sc->sc_dev, 1, &is_fn_enabled);
is_fn_enabled &= 1;
is_fn_enabled_sysctl = is_fn_enabled;
error = sysctl_handle_int(oidp, &is_fn_enabled_sysctl, 0, req);
if (error || !req->newptr)
return (error);
is_fn_enabled = is_fn_enabled_sysctl;
if (is_fn_enabled != 1 && is_fn_enabled != 0)
return (EINVAL);
adb_write_register(sc->sc_dev, 1, 2, &is_fn_enabled);
return (0);
}
DEV_MODULE(akbd, akbd_modevent, NULL);