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freebsd/sys/dev/atkbdc/atkbd.c
Pedro F. Giffuni 718cf2ccb9 sys/dev: further adoption of SPDX licensing ID tags. 
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 14:52:40 +00:00

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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
* 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 as
* the first lines of this file unmodified.
* 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 AUTHORS ``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 AUTHORS 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.
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_compat.h"
#include "opt_kbd.h"
#include "opt_atkbd.h"
#include "opt_evdev.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/eventhandler.h>
#include <sys/proc.h>
#include <sys/limits.h>
#include <sys/malloc.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/kbio.h>
#include <dev/kbd/kbdreg.h>
#include <dev/atkbdc/atkbdreg.h>
#include <dev/atkbdc/atkbdcreg.h>
#ifdef EVDEV_SUPPORT
#include <dev/evdev/evdev.h>
#include <dev/evdev/input.h>
#endif
typedef struct atkbd_state {
KBDC kbdc; /* keyboard controller */
int ks_mode; /* input mode (K_XLATE,K_RAW,K_CODE) */
int ks_flags; /* flags */
#define COMPOSE (1 << 0)
int ks_polling;
int ks_state; /* shift/lock key state */
int ks_accents; /* accent key index (> 0) */
u_int ks_composed_char; /* composed char code (> 0) */
u_char ks_prefix; /* AT scan code prefix */
struct callout ks_timer;
#ifdef EVDEV_SUPPORT
struct evdev_dev *ks_evdev;
int ks_evdev_state;
#endif
} atkbd_state_t;
static void atkbd_timeout(void *arg);
static void atkbd_shutdown_final(void *v);
static int atkbd_reset(KBDC kbdc, int flags, int c);
#define HAS_QUIRK(p, q) (((atkbdc_softc_t *)(p))->quirks & q)
#define ALLOW_DISABLE_KBD(kbdc) !HAS_QUIRK(kbdc, KBDC_QUIRK_KEEP_ACTIVATED)
#define DEFAULT_DELAY 0x1 /* 500ms */
#define DEFAULT_RATE 0x10 /* 14Hz */
#ifdef EVDEV_SUPPORT
#define PS2_KEYBOARD_VENDOR 1
#define PS2_KEYBOARD_PRODUCT 1
#endif
int
atkbd_probe_unit(device_t dev, int irq, int flags)
{
keyboard_switch_t *sw;
int args[2];
int error;
sw = kbd_get_switch(ATKBD_DRIVER_NAME);
if (sw == NULL)
return ENXIO;
args[0] = device_get_unit(device_get_parent(dev));
args[1] = irq;
error = (*sw->probe)(device_get_unit(dev), args, flags);
if (error)
return error;
return 0;
}
int
atkbd_attach_unit(device_t dev, keyboard_t **kbd, int irq, int flags)
{
keyboard_switch_t *sw;
atkbd_state_t *state;
int args[2];
int error;
int unit;
sw = kbd_get_switch(ATKBD_DRIVER_NAME);
if (sw == NULL)
return ENXIO;
/* reset, initialize and enable the device */
unit = device_get_unit(dev);
args[0] = device_get_unit(device_get_parent(dev));
args[1] = irq;
*kbd = NULL;
error = (*sw->probe)(unit, args, flags);
if (error)
return error;
error = (*sw->init)(unit, kbd, args, flags);
if (error)
return error;
(*sw->enable)(*kbd);
#ifdef KBD_INSTALL_CDEV
/* attach a virtual keyboard cdev */
error = kbd_attach(*kbd);
if (error)
return error;
#endif
/*
* This is a kludge to compensate for lost keyboard interrupts.
* A similar code used to be in syscons. See below. XXX
*/
state = (atkbd_state_t *)(*kbd)->kb_data;
callout_init(&state->ks_timer, 0);
atkbd_timeout(*kbd);
if (bootverbose)
(*sw->diag)(*kbd, bootverbose);
EVENTHANDLER_REGISTER(shutdown_final, atkbd_shutdown_final, *kbd,
SHUTDOWN_PRI_DEFAULT);
return 0;
}
static void
atkbd_timeout(void *arg)
{
atkbd_state_t *state;
keyboard_t *kbd;
int s;
/*
* The original text of the following comments are extracted
* from syscons.c (1.287)
*
* With release 2.1 of the Xaccel server, the keyboard is left
* hanging pretty often. Apparently an interrupt from the
* keyboard is lost, and I don't know why (yet).
* This ugly hack calls the low-level interrupt routine if input
* is ready for the keyboard and conveniently hides the problem. XXX
*
* Try removing anything stuck in the keyboard controller; whether
* it's a keyboard scan code or mouse data. The low-level
* interrupt routine doesn't read the mouse data directly,
* but the keyboard controller driver will, as a side effect.
*/
/*
* And here is bde's original comment about this:
*
* This is necessary to handle edge triggered interrupts - if we
* returned when our IRQ is high due to unserviced input, then there
* would be no more keyboard IRQs until the keyboard is reset by
* external powers.
*
* The keyboard apparently unwedges the irq in most cases.
*/
s = spltty();
kbd = (keyboard_t *)arg;
if (kbdd_lock(kbd, TRUE)) {
/*
* We have seen the lock flag is not set. Let's reset
* the flag early, otherwise the LED update routine fails
* which may want the lock during the interrupt routine.
*/
kbdd_lock(kbd, FALSE);
if (kbdd_check_char(kbd))
kbdd_intr(kbd, NULL);
}
splx(s);
state = (atkbd_state_t *)kbd->kb_data;
callout_reset(&state->ks_timer, hz / 10, atkbd_timeout, arg);
}
/* LOW-LEVEL */
#define ATKBD_DEFAULT 0
/* keyboard driver declaration */
static int atkbd_configure(int flags);
static kbd_probe_t atkbd_probe;
static kbd_init_t atkbd_init;
static kbd_term_t atkbd_term;
static kbd_intr_t atkbd_intr;
static kbd_test_if_t atkbd_test_if;
static kbd_enable_t atkbd_enable;
static kbd_disable_t atkbd_disable;
static kbd_read_t atkbd_read;
static kbd_check_t atkbd_check;
static kbd_read_char_t atkbd_read_char;
static kbd_check_char_t atkbd_check_char;
static kbd_ioctl_t atkbd_ioctl;
static kbd_lock_t atkbd_lock;
static kbd_clear_state_t atkbd_clear_state;
static kbd_get_state_t atkbd_get_state;
static kbd_set_state_t atkbd_set_state;
static kbd_poll_mode_t atkbd_poll;
static keyboard_switch_t atkbdsw = {
atkbd_probe,
atkbd_init,
atkbd_term,
atkbd_intr,
atkbd_test_if,
atkbd_enable,
atkbd_disable,
atkbd_read,
atkbd_check,
atkbd_read_char,
atkbd_check_char,
atkbd_ioctl,
atkbd_lock,
atkbd_clear_state,
atkbd_get_state,
atkbd_set_state,
genkbd_get_fkeystr,
atkbd_poll,
genkbd_diag,
};
KEYBOARD_DRIVER(atkbd, atkbdsw, atkbd_configure);
/* local functions */
static int set_typematic(keyboard_t *kbd);
static int setup_kbd_port(KBDC kbdc, int port, int intr);
static int get_kbd_echo(KBDC kbdc);
static int probe_keyboard(KBDC kbdc, int flags);
static int init_keyboard(KBDC kbdc, int *type, int flags);
static int write_kbd(KBDC kbdc, int command, int data);
static int get_kbd_id(KBDC kbdc);
static int typematic(int delay, int rate);
static int typematic_delay(int delay);
static int typematic_rate(int rate);
#ifdef EVDEV_SUPPORT
static const struct evdev_methods atkbd_evdev_methods = {
.ev_event = evdev_ev_kbd_event,
};
#endif
/* local variables */
/* the initial key map, accent map and fkey strings */
#ifdef ATKBD_DFLT_KEYMAP
#define KBD_DFLT_KEYMAP
#include "atkbdmap.h"
#endif
#include <dev/kbd/kbdtables.h>
/* structures for the default keyboard */
static keyboard_t default_kbd;
static atkbd_state_t default_kbd_state;
static keymap_t default_keymap;
static accentmap_t default_accentmap;
static fkeytab_t default_fkeytab[NUM_FKEYS];
/*
* The back door to the keyboard driver!
* This function is called by the console driver, via the kbdio module,
* to tickle keyboard drivers when the low-level console is being initialized.
* Almost nothing in the kernel has been initialied yet. Try to probe
* keyboards if possible.
* NOTE: because of the way the low-level console is initialized, this routine
* may be called more than once!!
*/
static int
atkbd_configure(int flags)
{
keyboard_t *kbd;
int arg[2];
int i;
/*
* Probe the keyboard controller, if not present or if the driver
* is disabled, unregister the keyboard if any.
*/
if (atkbdc_configure() != 0 ||
resource_disabled("atkbd", ATKBD_DEFAULT)) {
i = kbd_find_keyboard(ATKBD_DRIVER_NAME, ATKBD_DEFAULT);
if (i >= 0) {
kbd = kbd_get_keyboard(i);
kbd_unregister(kbd);
kbd->kb_flags &= ~KB_REGISTERED;
}
return 0;
}
/* XXX: a kludge to obtain the device configuration flags */
if (resource_int_value("atkbd", ATKBD_DEFAULT, "flags", &i) == 0)
flags |= i;
/* probe the default keyboard */
arg[0] = -1;
arg[1] = -1;
kbd = NULL;
if (atkbd_probe(ATKBD_DEFAULT, arg, flags))
return 0;
if (atkbd_init(ATKBD_DEFAULT, &kbd, arg, flags))
return 0;
/* return the number of found keyboards */
return 1;
}
/* low-level functions */
/* detect a keyboard */
static int
atkbd_probe(int unit, void *arg, int flags)
{
KBDC kbdc;
int *data = (int *)arg; /* data[0]: controller, data[1]: irq */
/* XXX */
if (unit == ATKBD_DEFAULT) {
if (KBD_IS_PROBED(&default_kbd))
return 0;
}
kbdc = atkbdc_open(data[0]);
if (kbdc == NULL)
return ENXIO;
if (probe_keyboard(kbdc, flags)) {
if (flags & KB_CONF_FAIL_IF_NO_KBD)
return ENXIO;
}
return 0;
}
/* reset and initialize the device */
static int
atkbd_init(int unit, keyboard_t **kbdp, void *arg, int flags)
{
keyboard_t *kbd;
atkbd_state_t *state;
keymap_t *keymap;
accentmap_t *accmap;
fkeytab_t *fkeymap;
int fkeymap_size;
int delay[2];
int *data = (int *)arg; /* data[0]: controller, data[1]: irq */
int error, needfree;
#ifdef EVDEV_SUPPORT
struct evdev_dev *evdev;
char phys_loc[8];
#endif
/* XXX */
if (unit == ATKBD_DEFAULT) {
*kbdp = kbd = &default_kbd;
if (KBD_IS_INITIALIZED(kbd) && KBD_IS_CONFIGURED(kbd))
return 0;
state = &default_kbd_state;
keymap = &default_keymap;
accmap = &default_accentmap;
fkeymap = default_fkeytab;
fkeymap_size = nitems(default_fkeytab);
needfree = 0;
} else if (*kbdp == NULL) {
*kbdp = kbd = malloc(sizeof(*kbd), M_DEVBUF, M_NOWAIT | M_ZERO);
state = malloc(sizeof(*state), M_DEVBUF, M_NOWAIT | M_ZERO);
/* NB: these will always be initialized 'cuz !KBD_IS_PROBED */
keymap = malloc(sizeof(key_map), M_DEVBUF, M_NOWAIT);
accmap = malloc(sizeof(accent_map), M_DEVBUF, M_NOWAIT);
fkeymap = malloc(sizeof(fkey_tab), M_DEVBUF, M_NOWAIT);
fkeymap_size = sizeof(fkey_tab)/sizeof(fkey_tab[0]);
needfree = 1;
if ((kbd == NULL) || (state == NULL) || (keymap == NULL)
|| (accmap == NULL) || (fkeymap == NULL)) {
error = ENOMEM;
goto bad;
}
} else if (KBD_IS_INITIALIZED(*kbdp) && KBD_IS_CONFIGURED(*kbdp)) {
return 0;
} else {
kbd = *kbdp;
state = (atkbd_state_t *)kbd->kb_data;
bzero(state, sizeof(*state));
keymap = kbd->kb_keymap;
accmap = kbd->kb_accentmap;
fkeymap = kbd->kb_fkeytab;
fkeymap_size = kbd->kb_fkeytab_size;
needfree = 0;
}
if (!KBD_IS_PROBED(kbd)) {
state->kbdc = atkbdc_open(data[0]);
if (state->kbdc == NULL) {
error = ENXIO;
goto bad;
}
kbd_init_struct(kbd, ATKBD_DRIVER_NAME, KB_OTHER, unit, flags,
0, 0);
bcopy(&key_map, keymap, sizeof(key_map));
bcopy(&accent_map, accmap, sizeof(accent_map));
bcopy(fkey_tab, fkeymap,
imin(fkeymap_size * sizeof(fkeymap[0]), sizeof(fkey_tab)));
kbd_set_maps(kbd, keymap, accmap, fkeymap, fkeymap_size);
kbd->kb_data = (void *)state;
if (probe_keyboard(state->kbdc, flags)) { /* shouldn't happen */
if (flags & KB_CONF_FAIL_IF_NO_KBD) {
error = ENXIO;
goto bad;
}
} else {
KBD_FOUND_DEVICE(kbd);
}
atkbd_clear_state(kbd);
state->ks_mode = K_XLATE;
/*
* FIXME: set the initial value for lock keys in ks_state
* according to the BIOS data?
*/
KBD_PROBE_DONE(kbd);
}
if (!KBD_IS_INITIALIZED(kbd) && !(flags & KB_CONF_PROBE_ONLY)) {
kbd->kb_config = flags & ~KB_CONF_PROBE_ONLY;
if (KBD_HAS_DEVICE(kbd)
&& init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config)
&& (kbd->kb_config & KB_CONF_FAIL_IF_NO_KBD)) {
kbd_unregister(kbd);
error = ENXIO;
goto bad;
}
atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state);
set_typematic(kbd);
delay[0] = kbd->kb_delay1;
delay[1] = kbd->kb_delay2;
atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay);
#ifdef EVDEV_SUPPORT
/* register as evdev provider on first init */
if (state->ks_evdev == NULL) {
snprintf(phys_loc, sizeof(phys_loc), "atkbd%d", unit);
evdev = evdev_alloc();
evdev_set_name(evdev, "AT keyboard");
evdev_set_phys(evdev, phys_loc);
evdev_set_id(evdev, BUS_I8042, PS2_KEYBOARD_VENDOR,
PS2_KEYBOARD_PRODUCT, 0);
evdev_set_methods(evdev, kbd, &atkbd_evdev_methods);
evdev_support_event(evdev, EV_SYN);
evdev_support_event(evdev, EV_KEY);
evdev_support_event(evdev, EV_LED);
evdev_support_event(evdev, EV_REP);
evdev_support_all_known_keys(evdev);
evdev_support_led(evdev, LED_NUML);
evdev_support_led(evdev, LED_CAPSL);
evdev_support_led(evdev, LED_SCROLLL);
if (evdev_register(evdev))
evdev_free(evdev);
else
state->ks_evdev = evdev;
state->ks_evdev_state = 0;
}
#endif
KBD_INIT_DONE(kbd);
}
if (!KBD_IS_CONFIGURED(kbd)) {
if (kbd_register(kbd) < 0) {
error = ENXIO;
goto bad;
}
KBD_CONFIG_DONE(kbd);
}
return 0;
bad:
if (needfree) {
if (state != NULL)
free(state, M_DEVBUF);
if (keymap != NULL)
free(keymap, M_DEVBUF);
if (accmap != NULL)
free(accmap, M_DEVBUF);
if (fkeymap != NULL)
free(fkeymap, M_DEVBUF);
if (kbd != NULL) {
free(kbd, M_DEVBUF);
*kbdp = NULL; /* insure ref doesn't leak to caller */
}
}
return error;
}
/* finish using this keyboard */
static int
atkbd_term(keyboard_t *kbd)
{
atkbd_state_t *state = (atkbd_state_t *)kbd->kb_data;
kbd_unregister(kbd);
callout_drain(&state->ks_timer);
return 0;
}
/* keyboard interrupt routine */
static int
atkbd_intr(keyboard_t *kbd, void *arg)
{
atkbd_state_t *state = (atkbd_state_t *)kbd->kb_data;
int delay[2];
int c;
if (!KBD_HAS_DEVICE(kbd)) {
/*
* The keyboard was not detected before;
* it must have been reconnected!
*/
init_keyboard(state->kbdc, &kbd->kb_type, kbd->kb_config);
KBD_FOUND_DEVICE(kbd);
atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state);
set_typematic(kbd);
delay[0] = kbd->kb_delay1;
delay[1] = kbd->kb_delay2;
atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay);
}
if (state->ks_polling)
return 0;
if (KBD_IS_ACTIVE(kbd) && KBD_IS_BUSY(kbd)) {
/* let the callback function to process the input */
(*kbd->kb_callback.kc_func)(kbd, KBDIO_KEYINPUT,
kbd->kb_callback.kc_arg);
} else {
/* read and discard the input; no one is waiting for input */
do {
c = atkbd_read_char(kbd, FALSE);
} while (c != NOKEY);
}
return 0;
}
/* test the interface to the device */
static int
atkbd_test_if(keyboard_t *kbd)
{
int error;
int s;
error = 0;
empty_both_buffers(((atkbd_state_t *)kbd->kb_data)->kbdc, 10);
s = spltty();
if (!test_controller(((atkbd_state_t *)kbd->kb_data)->kbdc))
error = EIO;
else if (test_kbd_port(((atkbd_state_t *)kbd->kb_data)->kbdc) != 0)
error = EIO;
splx(s);
return error;
}
/*
* Enable the access to the device; until this function is called,
* the client cannot read from the keyboard.
*/
static int
atkbd_enable(keyboard_t *kbd)
{
int s;
s = spltty();
KBD_ACTIVATE(kbd);
splx(s);
return 0;
}
/* disallow the access to the device */
static int
atkbd_disable(keyboard_t *kbd)
{
int s;
s = spltty();
KBD_DEACTIVATE(kbd);
splx(s);
return 0;
}
/* read one byte from the keyboard if it's allowed */
static int
atkbd_read(keyboard_t *kbd, int wait)
{
int c;
if (wait)
c = read_kbd_data(((atkbd_state_t *)kbd->kb_data)->kbdc);
else
c = read_kbd_data_no_wait(((atkbd_state_t *)kbd->kb_data)->kbdc);
if (c != -1)
++kbd->kb_count;
return (KBD_IS_ACTIVE(kbd) ? c : -1);
}
/* check if data is waiting */
static int
atkbd_check(keyboard_t *kbd)
{
if (!KBD_IS_ACTIVE(kbd))
return FALSE;
return kbdc_data_ready(((atkbd_state_t *)kbd->kb_data)->kbdc);
}
/* read char from the keyboard */
static u_int
atkbd_read_char(keyboard_t *kbd, int wait)
{
atkbd_state_t *state;
u_int action;
int scancode;
int keycode;
state = (atkbd_state_t *)kbd->kb_data;
next_code:
/* do we have a composed char to return? */
if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0)) {
action = state->ks_composed_char;
state->ks_composed_char = 0;
if (action > UCHAR_MAX)
return ERRKEY;
return action;
}
/* see if there is something in the keyboard port */
if (wait) {
do {
scancode = read_kbd_data(state->kbdc);
} while (scancode == -1);
} else {
scancode = read_kbd_data_no_wait(state->kbdc);
if (scancode == -1)
return NOKEY;
}
++kbd->kb_count;
#if KBDIO_DEBUG >= 10
printf("atkbd_read_char(): scancode:0x%x\n", scancode);
#endif
#ifdef EVDEV_SUPPORT
/* push evdev event */
if (evdev_rcpt_mask & EVDEV_RCPT_HW_KBD && state->ks_evdev != NULL) {
keycode = evdev_scancode2key(&state->ks_evdev_state,
scancode);
if (keycode != KEY_RESERVED) {
evdev_push_event(state->ks_evdev, EV_KEY,
(uint16_t)keycode, scancode & 0x80 ? 0 : 1);
evdev_sync(state->ks_evdev);
}
}
#endif
/* return the byte as is for the K_RAW mode */
if (state->ks_mode == K_RAW)
return scancode;
/* translate the scan code into a keycode */
keycode = scancode & 0x7F;
switch (state->ks_prefix) {
case 0x00: /* normal scancode */
switch(scancode) {
case 0xB8: /* left alt (compose key) released */
if (state->ks_flags & COMPOSE) {
state->ks_flags &= ~COMPOSE;
if (state->ks_composed_char > UCHAR_MAX)
state->ks_composed_char = 0;
}
break;
case 0x38: /* left alt (compose key) pressed */
if (!(state->ks_flags & COMPOSE)) {
state->ks_flags |= COMPOSE;
state->ks_composed_char = 0;
}
break;
case 0xE0:
case 0xE1:
state->ks_prefix = scancode;
goto next_code;
}
break;
case 0xE0: /* 0xE0 prefix */
state->ks_prefix = 0;
switch (keycode) {
case 0x1C: /* right enter key */
keycode = 0x59;
break;
case 0x1D: /* right ctrl key */
keycode = 0x5A;
break;
case 0x35: /* keypad divide key */
keycode = 0x5B;
break;
case 0x37: /* print scrn key */
keycode = 0x5C;
break;
case 0x38: /* right alt key (alt gr) */
keycode = 0x5D;
break;
case 0x46: /* ctrl-pause/break on AT 101 (see below) */
keycode = 0x68;
break;
case 0x47: /* grey home key */
keycode = 0x5E;
break;
case 0x48: /* grey up arrow key */
keycode = 0x5F;
break;
case 0x49: /* grey page up key */
keycode = 0x60;
break;
case 0x4B: /* grey left arrow key */
keycode = 0x61;
break;
case 0x4D: /* grey right arrow key */
keycode = 0x62;
break;
case 0x4F: /* grey end key */
keycode = 0x63;
break;
case 0x50: /* grey down arrow key */
keycode = 0x64;
break;
case 0x51: /* grey page down key */
keycode = 0x65;
break;
case 0x52: /* grey insert key */
keycode = 0x66;
break;
case 0x53: /* grey delete key */
keycode = 0x67;
break;
/* the following 3 are only used on the MS "Natural" keyboard */
case 0x5b: /* left Window key */
keycode = 0x69;
break;
case 0x5c: /* right Window key */
keycode = 0x6a;
break;
case 0x5d: /* menu key */
keycode = 0x6b;
break;
case 0x5e: /* power key */
keycode = 0x6d;
break;
case 0x5f: /* sleep key */
keycode = 0x6e;
break;
case 0x63: /* wake key */
keycode = 0x6f;
break;
default: /* ignore everything else */
goto next_code;
}
break;
case 0xE1: /* 0xE1 prefix */
/*
* The pause/break key on the 101 keyboard produces:
* E1-1D-45 E1-9D-C5
* Ctrl-pause/break produces:
* E0-46 E0-C6 (See above.)
*/
state->ks_prefix = 0;
if (keycode == 0x1D)
state->ks_prefix = 0x1D;
goto next_code;
/* NOT REACHED */
case 0x1D: /* pause / break */
state->ks_prefix = 0;
if (keycode != 0x45)
goto next_code;
keycode = 0x68;
break;
}
if (kbd->kb_type == KB_84) {
switch (keycode) {
case 0x37: /* *(numpad)/print screen */
if (state->ks_flags & SHIFTS)
keycode = 0x5c; /* print screen */
break;
case 0x45: /* num lock/pause */
if (state->ks_flags & CTLS)
keycode = 0x68; /* pause */
break;
case 0x46: /* scroll lock/break */
if (state->ks_flags & CTLS)
keycode = 0x6c; /* break */
break;
}
} else if (kbd->kb_type == KB_101) {
switch (keycode) {
case 0x5c: /* print screen */
if (state->ks_flags & ALTS)
keycode = 0x54; /* sysrq */
break;
case 0x68: /* pause/break */
if (state->ks_flags & CTLS)
keycode = 0x6c; /* break */
break;
}
}
/* return the key code in the K_CODE mode */
if (state->ks_mode == K_CODE)
return (keycode | (scancode & 0x80));
/* compose a character code */
if (state->ks_flags & COMPOSE) {
switch (keycode | (scancode & 0x80)) {
/* key pressed, process it */
case 0x47: case 0x48: case 0x49: /* keypad 7,8,9 */
state->ks_composed_char *= 10;
state->ks_composed_char += keycode - 0x40;
if (state->ks_composed_char > UCHAR_MAX)
return ERRKEY;
goto next_code;
case 0x4B: case 0x4C: case 0x4D: /* keypad 4,5,6 */
state->ks_composed_char *= 10;
state->ks_composed_char += keycode - 0x47;
if (state->ks_composed_char > UCHAR_MAX)
return ERRKEY;
goto next_code;
case 0x4F: case 0x50: case 0x51: /* keypad 1,2,3 */
state->ks_composed_char *= 10;
state->ks_composed_char += keycode - 0x4E;
if (state->ks_composed_char > UCHAR_MAX)
return ERRKEY;
goto next_code;
case 0x52: /* keypad 0 */
state->ks_composed_char *= 10;
if (state->ks_composed_char > UCHAR_MAX)
return ERRKEY;
goto next_code;
/* key released, no interest here */
case 0xC7: case 0xC8: case 0xC9: /* keypad 7,8,9 */
case 0xCB: case 0xCC: case 0xCD: /* keypad 4,5,6 */
case 0xCF: case 0xD0: case 0xD1: /* keypad 1,2,3 */
case 0xD2: /* keypad 0 */
goto next_code;
case 0x38: /* left alt key */
break;
default:
if (state->ks_composed_char > 0) {
state->ks_flags &= ~COMPOSE;
state->ks_composed_char = 0;
return ERRKEY;
}
break;
}
}
/* keycode to key action */
action = genkbd_keyaction(kbd, keycode, scancode & 0x80,
&state->ks_state, &state->ks_accents);
if (action == NOKEY)
goto next_code;
else
return action;
}
/* check if char is waiting */
static int
atkbd_check_char(keyboard_t *kbd)
{
atkbd_state_t *state;
if (!KBD_IS_ACTIVE(kbd))
return FALSE;
state = (atkbd_state_t *)kbd->kb_data;
if (!(state->ks_flags & COMPOSE) && (state->ks_composed_char > 0))
return TRUE;
return kbdc_data_ready(state->kbdc);
}
/* some useful control functions */
static int
atkbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg)
{
/* translate LED_XXX bits into the device specific bits */
static u_char ledmap[8] = {
0, 4, 2, 6, 1, 5, 3, 7,
};
atkbd_state_t *state = kbd->kb_data;
int error;
int s;
int i;
#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
int ival;
#endif
s = spltty();
switch (cmd) {
case KDGKBMODE: /* get keyboard mode */
*(int *)arg = state->ks_mode;
break;
#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
case _IO('K', 7):
ival = IOCPARM_IVAL(arg);
arg = (caddr_t)&ival;
/* FALLTHROUGH */
#endif
case KDSKBMODE: /* set keyboard mode */
switch (*(int *)arg) {
case K_XLATE:
if (state->ks_mode != K_XLATE) {
/* make lock key state and LED state match */
state->ks_state &= ~LOCK_MASK;
state->ks_state |= KBD_LED_VAL(kbd);
}
/* FALLTHROUGH */
case K_RAW:
case K_CODE:
if (state->ks_mode != *(int *)arg) {
atkbd_clear_state(kbd);
state->ks_mode = *(int *)arg;
}
break;
default:
splx(s);
return EINVAL;
}
break;
case KDGETLED: /* get keyboard LED */
*(int *)arg = KBD_LED_VAL(kbd);
break;
#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
case _IO('K', 66):
ival = IOCPARM_IVAL(arg);
arg = (caddr_t)&ival;
/* FALLTHROUGH */
#endif
case KDSETLED: /* set keyboard LED */
/* NOTE: lock key state in ks_state won't be changed */
if (*(int *)arg & ~LOCK_MASK) {
splx(s);
return EINVAL;
}
i = *(int *)arg;
/* replace CAPS LED with ALTGR LED for ALTGR keyboards */
if (state->ks_mode == K_XLATE &&
kbd->kb_keymap->n_keys > ALTGR_OFFSET) {
if (i & ALKED)
i |= CLKED;
else
i &= ~CLKED;
}
if (KBD_HAS_DEVICE(kbd)) {
error = write_kbd(state->kbdc, KBDC_SET_LEDS,
ledmap[i & LED_MASK]);
if (error) {
splx(s);
return error;
}
}
#ifdef EVDEV_SUPPORT
/* push LED states to evdev */
if (state->ks_evdev != NULL &&
evdev_rcpt_mask & EVDEV_RCPT_HW_KBD)
evdev_push_leds(state->ks_evdev, *(int *)arg);
#endif
KBD_LED_VAL(kbd) = *(int *)arg;
break;
case KDGKBSTATE: /* get lock key state */
*(int *)arg = state->ks_state & LOCK_MASK;
break;
#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
case _IO('K', 20):
ival = IOCPARM_IVAL(arg);
arg = (caddr_t)&ival;
/* FALLTHROUGH */
#endif
case KDSKBSTATE: /* set lock key state */
if (*(int *)arg & ~LOCK_MASK) {
splx(s);
return EINVAL;
}
state->ks_state &= ~LOCK_MASK;
state->ks_state |= *(int *)arg;
splx(s);
/* set LEDs and quit */
return atkbd_ioctl(kbd, KDSETLED, arg);
case KDSETREPEAT: /* set keyboard repeat rate (new interface) */
splx(s);
if (!KBD_HAS_DEVICE(kbd))
return 0;
i = typematic(((int *)arg)[0], ((int *)arg)[1]);
error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, i);
if (error == 0) {
kbd->kb_delay1 = typematic_delay(i);
kbd->kb_delay2 = typematic_rate(i);
#ifdef EVDEV_SUPPORT
if (state->ks_evdev != NULL &&
evdev_rcpt_mask & EVDEV_RCPT_HW_KBD)
evdev_push_repeats(state->ks_evdev, kbd);
#endif
}
return error;
#if defined(COMPAT_FREEBSD6) || defined(COMPAT_FREEBSD5) || \
defined(COMPAT_FREEBSD4) || defined(COMPAT_43)
case _IO('K', 67):
ival = IOCPARM_IVAL(arg);
arg = (caddr_t)&ival;
/* FALLTHROUGH */
#endif
case KDSETRAD: /* set keyboard repeat rate (old interface) */
splx(s);
if (!KBD_HAS_DEVICE(kbd))
return 0;
error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, *(int *)arg);
if (error == 0) {
kbd->kb_delay1 = typematic_delay(*(int *)arg);
kbd->kb_delay2 = typematic_rate(*(int *)arg);
#ifdef EVDEV_SUPPORT
if (state->ks_evdev != NULL &&
evdev_rcpt_mask & EVDEV_RCPT_HW_KBD)
evdev_push_repeats(state->ks_evdev, kbd);
#endif
}
return error;
case PIO_KEYMAP: /* set keyboard translation table */
case OPIO_KEYMAP: /* set keyboard translation table (compat) */
case PIO_KEYMAPENT: /* set keyboard translation table entry */
case PIO_DEADKEYMAP: /* set accent key translation table */
state->ks_accents = 0;
/* FALLTHROUGH */
default:
splx(s);
return genkbd_commonioctl(kbd, cmd, arg);
}
splx(s);
return 0;
}
/* lock the access to the keyboard */
static int
atkbd_lock(keyboard_t *kbd, int lock)
{
return kbdc_lock(((atkbd_state_t *)kbd->kb_data)->kbdc, lock);
}
/* clear the internal state of the keyboard */
static void
atkbd_clear_state(keyboard_t *kbd)
{
atkbd_state_t *state;
state = (atkbd_state_t *)kbd->kb_data;
state->ks_flags = 0;
state->ks_polling = 0;
state->ks_state &= LOCK_MASK; /* preserve locking key state */
state->ks_accents = 0;
state->ks_composed_char = 0;
#if 0
state->ks_prefix = 0; /* XXX */
#endif
}
/* save the internal state */
static int
atkbd_get_state(keyboard_t *kbd, void *buf, size_t len)
{
if (len == 0)
return sizeof(atkbd_state_t);
if (len < sizeof(atkbd_state_t))
return -1;
bcopy(kbd->kb_data, buf, sizeof(atkbd_state_t));
return 0;
}
/* set the internal state */
static int
atkbd_set_state(keyboard_t *kbd, void *buf, size_t len)
{
if (len < sizeof(atkbd_state_t))
return ENOMEM;
if (((atkbd_state_t *)kbd->kb_data)->kbdc
!= ((atkbd_state_t *)buf)->kbdc)
return ENOMEM;
bcopy(buf, kbd->kb_data, sizeof(atkbd_state_t));
return 0;
}
static int
atkbd_poll(keyboard_t *kbd, int on)
{
atkbd_state_t *state;
int s;
state = (atkbd_state_t *)kbd->kb_data;
s = spltty();
if (on)
++state->ks_polling;
else
--state->ks_polling;
splx(s);
return 0;
}
static void
atkbd_shutdown_final(void *v)
{
#ifdef __sparc64__
keyboard_t *kbd = v;
KBDC kbdc = ((atkbd_state_t *)kbd->kb_data)->kbdc;
/*
* Turn off the translation in preparation for handing the keyboard
* over to the OFW as the OBP driver doesn't use translation and
* also doesn't disable it itself resulting in a broken keymap at
* the boot prompt. Also disable the aux port and the interrupts as
* the OBP driver doesn't use them, i.e. polls the keyboard. Not
* disabling the interrupts doesn't cause real problems but the
* responsiveness is a bit better when they are turned off.
*/
send_kbd_command(kbdc, KBDC_DISABLE_KBD);
set_controller_command_byte(kbdc,
KBD_AUX_CONTROL_BITS | KBD_KBD_CONTROL_BITS | KBD_TRANSLATION,
KBD_DISABLE_AUX_PORT | KBD_DISABLE_KBD_INT | KBD_ENABLE_KBD_PORT);
send_kbd_command(kbdc, KBDC_ENABLE_KBD);
#endif
}
static int
atkbd_reset(KBDC kbdc, int flags, int c)
{
/* reset keyboard hardware */
if (!(flags & KB_CONF_NO_RESET) && !reset_kbd(kbdc)) {
/*
* KEYBOARD ERROR
* Keyboard reset may fail either because the keyboard
* doen't exist, or because the keyboard doesn't pass
* the self-test, or the keyboard controller on the
* motherboard and the keyboard somehow fail to shake hands.
* It is just possible, particularly in the last case,
* that the keyboard controller may be left in a hung state.
* test_controller() and test_kbd_port() appear to bring
* the keyboard controller back (I don't know why and how,
* though.)
*/
empty_both_buffers(kbdc, 10);
test_controller(kbdc);
test_kbd_port(kbdc);
/*
* We could disable the keyboard port and interrupt... but,
* the keyboard may still exist (see above).
*/
set_controller_command_byte(kbdc,
ALLOW_DISABLE_KBD(kbdc) ? 0xff : KBD_KBD_CONTROL_BITS, c);
if (bootverbose)
printf("atkbd: failed to reset the keyboard.\n");
return (EIO);
}
return (0);
}
/* local functions */
static int
set_typematic(keyboard_t *kbd)
{
int val, error;
atkbd_state_t *state = kbd->kb_data;
val = typematic(DEFAULT_DELAY, DEFAULT_RATE);
error = write_kbd(state->kbdc, KBDC_SET_TYPEMATIC, val);
if (error == 0) {
kbd->kb_delay1 = typematic_delay(val);
kbd->kb_delay2 = typematic_rate(val);
}
return (error);
}
static int
setup_kbd_port(KBDC kbdc, int port, int intr)
{
if (!set_controller_command_byte(kbdc,
KBD_KBD_CONTROL_BITS,
((port) ? KBD_ENABLE_KBD_PORT : KBD_DISABLE_KBD_PORT)
| ((intr) ? KBD_ENABLE_KBD_INT : KBD_DISABLE_KBD_INT)))
return 1;
return 0;
}
static int
get_kbd_echo(KBDC kbdc)
{
/* enable the keyboard port, but disable the keyboard intr. */
if (setup_kbd_port(kbdc, TRUE, FALSE))
/* CONTROLLER ERROR: there is very little we can do... */
return ENXIO;
/* see if something is present */
write_kbd_command(kbdc, KBDC_ECHO);
if (read_kbd_data(kbdc) != KBD_ECHO) {
empty_both_buffers(kbdc, 10);
test_controller(kbdc);
test_kbd_port(kbdc);
return ENXIO;
}
/* enable the keyboard port and intr. */
if (setup_kbd_port(kbdc, TRUE, TRUE)) {
/*
* CONTROLLER ERROR
* This is serious; the keyboard intr is left disabled!
*/
return ENXIO;
}
return 0;
}
static int
probe_keyboard(KBDC kbdc, int flags)
{
/*
* Don't try to print anything in this function. The low-level
* console may not have been initialized yet...
*/
int err;
int c;
int m;
if (!kbdc_lock(kbdc, TRUE)) {
/* driver error? */
return ENXIO;
}
/* temporarily block data transmission from the keyboard */
write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT);
/* flush any noise in the buffer */
empty_both_buffers(kbdc, 100);
/* save the current keyboard controller command byte */
m = kbdc_get_device_mask(kbdc) & ~KBD_KBD_CONTROL_BITS;
c = get_controller_command_byte(kbdc);
if (c == -1) {
/* CONTROLLER ERROR */
kbdc_set_device_mask(kbdc, m);
kbdc_lock(kbdc, FALSE);
return ENXIO;
}
/*
* The keyboard may have been screwed up by the boot block.
* We may just be able to recover from error by testing the controller
* and the keyboard port. The controller command byte needs to be
* saved before this recovery operation, as some controllers seem
* to set the command byte to particular values.
*/
test_controller(kbdc);
if (!(flags & KB_CONF_NO_PROBE_TEST))
test_kbd_port(kbdc);
err = get_kbd_echo(kbdc);
/*
* Even if the keyboard doesn't seem to be present (err != 0),
* we shall enable the keyboard port and interrupt so that
* the driver will be operable when the keyboard is attached
* to the system later. It is NOT recommended to hot-plug
* the AT keyboard, but many people do so...
*/
kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS);
setup_kbd_port(kbdc, TRUE, TRUE);
#if 0
if (err == 0) {
kbdc_set_device_mask(kbdc, m | KBD_KBD_CONTROL_BITS);
} else {
/* try to restore the command byte as before */
set_controller_command_byte(kbdc,
ALLOW_DISABLE_KBD(kbdc) ? 0xff : KBD_KBD_CONTROL_BITS, c);
kbdc_set_device_mask(kbdc, m);
}
#endif
kbdc_lock(kbdc, FALSE);
return (HAS_QUIRK(kbdc, KBDC_QUIRK_IGNORE_PROBE_RESULT) ? 0 : err);
}
static int
init_keyboard(KBDC kbdc, int *type, int flags)
{
int codeset;
int id;
int c;
if (!kbdc_lock(kbdc, TRUE)) {
/* driver error? */
return EIO;
}
/* temporarily block data transmission from the keyboard */
write_controller_command(kbdc, KBDC_DISABLE_KBD_PORT);
/* save the current controller command byte */
empty_both_buffers(kbdc, 200);
c = get_controller_command_byte(kbdc);
if (c == -1) {
/* CONTROLLER ERROR */
kbdc_lock(kbdc, FALSE);
printf("atkbd: unable to get the current command byte value.\n");
return EIO;
}
if (bootverbose)
printf("atkbd: the current kbd controller command byte %04x\n",
c);
#if 0
/* override the keyboard lock switch */
c |= KBD_OVERRIDE_KBD_LOCK;
#endif
/* enable the keyboard port, but disable the keyboard intr. */
if (setup_kbd_port(kbdc, TRUE, FALSE)) {
/* CONTROLLER ERROR: there is very little we can do... */
printf("atkbd: unable to set the command byte.\n");
kbdc_lock(kbdc, FALSE);
return EIO;
}
if (HAS_QUIRK(kbdc, KBDC_QUIRK_RESET_AFTER_PROBE) &&
atkbd_reset(kbdc, flags, c)) {
kbdc_lock(kbdc, FALSE);
return EIO;
}
/*
* Check if we have an XT keyboard before we attempt to reset it.
* The procedure assumes that the keyboard and the controller have
* been set up properly by BIOS and have not been messed up
* during the boot process.
*/
codeset = -1;
if (flags & KB_CONF_ALT_SCANCODESET)
/* the user says there is a XT keyboard */
codeset = 1;
#ifdef KBD_DETECT_XT_KEYBOARD
else if ((c & KBD_TRANSLATION) == 0) {
/* SET_SCANCODE_SET is not always supported; ignore error */
if (send_kbd_command_and_data(kbdc, KBDC_SET_SCANCODE_SET, 0)
== KBD_ACK)
codeset = read_kbd_data(kbdc);
}
if (bootverbose)
printf("atkbd: scancode set %d\n", codeset);
#endif /* KBD_DETECT_XT_KEYBOARD */
*type = KB_OTHER;
id = get_kbd_id(kbdc);
switch(id) {
case 0x41ab: /* 101/102/... Enhanced */
case 0x83ab: /* ditto */
case 0x54ab: /* SpaceSaver */
case 0x84ab: /* ditto */
#if 0
case 0x90ab: /* 'G' */
case 0x91ab: /* 'P' */
case 0x92ab: /* 'A' */
#endif
*type = KB_101;
break;
case -1: /* AT 84 keyboard doesn't return ID */
*type = KB_84;
break;
default:
break;
}
if (bootverbose)
printf("atkbd: keyboard ID 0x%x (%d)\n", id, *type);
if (!HAS_QUIRK(kbdc, KBDC_QUIRK_RESET_AFTER_PROBE) &&
atkbd_reset(kbdc, flags, c)) {
kbdc_lock(kbdc, FALSE);
return EIO;
}
/*
* Allow us to set the XT_KEYBD flag so that keyboards
* such as those on the IBM ThinkPad laptop computers can be used
* with the standard console driver.
*/
if (codeset == 1) {
if (send_kbd_command_and_data(kbdc,
KBDC_SET_SCANCODE_SET, codeset) == KBD_ACK) {
/* XT kbd doesn't need scan code translation */
c &= ~KBD_TRANSLATION;
} else {
/*
* KEYBOARD ERROR
* The XT kbd isn't usable unless the proper scan
* code set is selected.
*/
set_controller_command_byte(kbdc, ALLOW_DISABLE_KBD(kbdc)
? 0xff : KBD_KBD_CONTROL_BITS, c);
kbdc_lock(kbdc, FALSE);
printf("atkbd: unable to set the XT keyboard mode.\n");
return EIO;
}
}
#if defined(__sparc64__)
if (send_kbd_command_and_data(
kbdc, KBDC_SET_SCANCODE_SET, 2) != KBD_ACK) {
printf("atkbd: can't set translation.\n");
}
c |= KBD_TRANSLATION;
#endif
/*
* Some keyboards require a SETLEDS command to be sent after
* the reset command before they will send keystrokes to us
*/
if (HAS_QUIRK(kbdc, KBDC_QUIRK_SETLEDS_ON_INIT) &&
send_kbd_command_and_data(kbdc, KBDC_SET_LEDS, 0) != KBD_ACK) {
printf("atkbd: setleds failed\n");
}
if (!ALLOW_DISABLE_KBD(kbdc))
send_kbd_command(kbdc, KBDC_ENABLE_KBD);
/* enable the keyboard port and intr. */
if (!set_controller_command_byte(kbdc,
KBD_KBD_CONTROL_BITS | KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK,
(c & (KBD_TRANSLATION | KBD_OVERRIDE_KBD_LOCK))
| KBD_ENABLE_KBD_PORT | KBD_ENABLE_KBD_INT)) {
/*
* CONTROLLER ERROR
* This is serious; we are left with the disabled
* keyboard intr.
*/
set_controller_command_byte(kbdc, ALLOW_DISABLE_KBD(kbdc)
? 0xff : (KBD_KBD_CONTROL_BITS | KBD_TRANSLATION |
KBD_OVERRIDE_KBD_LOCK), c);
kbdc_lock(kbdc, FALSE);
printf("atkbd: unable to enable the keyboard port and intr.\n");
return EIO;
}
kbdc_lock(kbdc, FALSE);
return 0;
}
static int
write_kbd(KBDC kbdc, int command, int data)
{
int s;
/* prevent the timeout routine from polling the keyboard */
if (!kbdc_lock(kbdc, TRUE))
return EBUSY;
/* disable the keyboard and mouse interrupt */
s = spltty();
#if 0
c = get_controller_command_byte(kbdc);
if ((c == -1)
|| !set_controller_command_byte(kbdc,
kbdc_get_device_mask(kbdc),
KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT
| KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) {
/* CONTROLLER ERROR */
kbdc_lock(kbdc, FALSE);
splx(s);
return EIO;
}
/*
* Now that the keyboard controller is told not to generate
* the keyboard and mouse interrupts, call `splx()' to allow
* the other tty interrupts. The clock interrupt may also occur,
* but the timeout routine (`scrn_timer()') will be blocked
* by the lock flag set via `kbdc_lock()'
*/
splx(s);
#endif
if (send_kbd_command_and_data(kbdc, command, data) != KBD_ACK)
send_kbd_command(kbdc, KBDC_ENABLE_KBD);
#if 0
/* restore the interrupts */
if (!set_controller_command_byte(kbdc, kbdc_get_device_mask(kbdc),
c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) {
/* CONTROLLER ERROR */
}
#else
splx(s);
#endif
kbdc_lock(kbdc, FALSE);
return 0;
}
static int
get_kbd_id(KBDC kbdc)
{
int id1, id2;
empty_both_buffers(kbdc, 10);
id1 = id2 = -1;
if (send_kbd_command(kbdc, KBDC_SEND_DEV_ID) != KBD_ACK)
return -1;
DELAY(10000); /* 10 msec delay */
id1 = read_kbd_data(kbdc);
if (id1 != -1)
id2 = read_kbd_data(kbdc);
if ((id1 == -1) || (id2 == -1)) {
empty_both_buffers(kbdc, 10);
test_controller(kbdc);
test_kbd_port(kbdc);
return -1;
}
return ((id2 << 8) | id1);
}
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 };
static int
typematic_delay(int i)
{
return delays[(i >> 5) & 3];
}
static int
typematic_rate(int i)
{
return rates[i & 0x1f];
}
static int
typematic(int delay, int rate)
{
int value;
int i;
for (i = nitems(delays) - 1; i > 0; --i) {
if (delay >= delays[i])
break;
}
value = i << 5;
for (i = nitems(rates) - 1; i > 0; --i) {
if (rate >= rates[i])
break;
}
value |= i;
return value;
}
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