1410 lines
35 KiB
C
1410 lines
35 KiB
C
/*-
|
|
* 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include "opt_kbd.h"
|
|
#include "opt_atkbd.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/malloc.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/resource.h>
|
|
|
|
#ifdef __i386__
|
|
#include <machine/md_var.h>
|
|
#include <machine/psl.h>
|
|
#include <machine/vm86.h>
|
|
#include <machine/pc/bios.h>
|
|
|
|
#include <vm/vm.h>
|
|
#include <vm/pmap.h>
|
|
#endif /* __i386__ */
|
|
|
|
#include <dev/kbd/kbdreg.h>
|
|
#include <dev/kbd/atkbdreg.h>
|
|
#include <dev/kbd/atkbdcreg.h>
|
|
|
|
#include <isa/isareg.h>
|
|
|
|
static timeout_t atkbd_timeout;
|
|
|
|
int
|
|
atkbd_probe_unit(int unit, int ctlr, 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] = ctlr;
|
|
args[1] = irq;
|
|
error = (*sw->probe)(unit, args, flags);
|
|
if (error)
|
|
return error;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
atkbd_attach_unit(int unit, keyboard_t **kbd, int ctlr, 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;
|
|
|
|
/* reset, initialize and enable the device */
|
|
args[0] = ctlr;
|
|
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
|
|
*/
|
|
atkbd_timeout(*kbd);
|
|
|
|
if (bootverbose)
|
|
(*sw->diag)(*kbd, bootverbose);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
atkbd_timeout(void *arg)
|
|
{
|
|
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 ((*kbdsw[kbd->kb_index]->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.
|
|
*/
|
|
(*kbdsw[kbd->kb_index]->lock)(kbd, FALSE);
|
|
if ((*kbdsw[kbd->kb_index]->check_char)(kbd))
|
|
(*kbdsw[kbd->kb_index]->intr)(kbd, NULL);
|
|
}
|
|
splx(s);
|
|
timeout(atkbd_timeout, arg, hz/10);
|
|
}
|
|
|
|
/* LOW-LEVEL */
|
|
|
|
#include <machine/limits.h>
|
|
#include <sys/kbio.h>
|
|
|
|
#define ATKBD_DEFAULT 0
|
|
|
|
typedef struct atkbd_state {
|
|
KBDC kbdc; /* keyboard controller */
|
|
/* XXX: don't move this field; pcvt
|
|
* expects `kbdc' to be the first
|
|
* field in this structure. */
|
|
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 */
|
|
} atkbd_state_t;
|
|
|
|
/* 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;
|
|
|
|
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 get_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);
|
|
|
|
/* 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 conole 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 */
|
|
atkbdc_configure();
|
|
|
|
/* if the driver is disabled, unregister the keyboard if any */
|
|
if ((resource_int_value("atkbd", ATKBD_DEFAULT, "disabled", &i) == 0)
|
|
&& i != 0) {
|
|
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 */
|
|
|
|
/* 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 =
|
|
sizeof(default_fkeytab)/sizeof(default_fkeytab[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);
|
|
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]);
|
|
if ((kbd == NULL) || (state == NULL) || (keymap == NULL)
|
|
|| (accmap == NULL) || (fkeymap == NULL)) {
|
|
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);
|
|
return ENOMEM;
|
|
}
|
|
} 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;
|
|
}
|
|
|
|
if (!KBD_IS_PROBED(kbd)) {
|
|
state->kbdc = atkbdc_open(data[0]);
|
|
if (state->kbdc == NULL)
|
|
return ENXIO;
|
|
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)
|
|
return ENXIO;
|
|
} 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))
|
|
return ENXIO;
|
|
atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state);
|
|
get_typematic(kbd);
|
|
delay[0] = kbd->kb_delay1;
|
|
delay[1] = kbd->kb_delay2;
|
|
atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay);
|
|
KBD_INIT_DONE(kbd);
|
|
}
|
|
if (!KBD_IS_CONFIGURED(kbd)) {
|
|
if (kbd_register(kbd) < 0)
|
|
return ENXIO;
|
|
KBD_CONFIG_DONE(kbd);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* finish using this keyboard */
|
|
static int
|
|
atkbd_term(keyboard_t *kbd)
|
|
{
|
|
kbd_unregister(kbd);
|
|
return 0;
|
|
}
|
|
|
|
/* keyboard interrupt routine */
|
|
static int
|
|
atkbd_intr(keyboard_t *kbd, void *arg)
|
|
{
|
|
atkbd_state_t *state;
|
|
int delay[2];
|
|
int c;
|
|
|
|
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);
|
|
|
|
if (!KBD_HAS_DEVICE(kbd)) {
|
|
/*
|
|
* The keyboard was not detected before;
|
|
* it must have been reconnected!
|
|
*/
|
|
state = (atkbd_state_t *)kbd->kb_data;
|
|
init_keyboard(state->kbdc, &kbd->kb_type,
|
|
kbd->kb_config);
|
|
atkbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state);
|
|
get_typematic(kbd);
|
|
delay[0] = kbd->kb_delay1;
|
|
delay[1] = kbd->kb_delay2;
|
|
atkbd_ioctl(kbd, KDSETREPEAT, (caddr_t)delay);
|
|
KBD_FOUND_DEVICE(kbd);
|
|
}
|
|
}
|
|
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
|
|
|
|
/* 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;
|
|
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)
|
|
{
|
|
/* trasnlate 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;
|
|
|
|
s = spltty();
|
|
switch (cmd) {
|
|
|
|
case KDGKBMODE: /* get keyboard mode */
|
|
*(int *)arg = state->ks_mode;
|
|
break;
|
|
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);
|
|
}
|
|
/* FALL THROUGH */
|
|
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;
|
|
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;
|
|
}
|
|
}
|
|
KBD_LED_VAL(kbd) = *(int *)arg;
|
|
break;
|
|
|
|
case KDGKBSTATE: /* get lock key state */
|
|
*(int *)arg = state->ks_state & LOCK_MASK;
|
|
break;
|
|
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);
|
|
}
|
|
return error;
|
|
|
|
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);
|
|
}
|
|
return error;
|
|
|
|
case PIO_KEYMAP: /* set keyboard translation table */
|
|
case PIO_KEYMAPENT: /* set keyboard translation table entry */
|
|
case PIO_DEADKEYMAP: /* set accent key translation table */
|
|
state->ks_accents = 0;
|
|
/* FALL THROUGH */
|
|
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;
|
|
}
|
|
|
|
/* local functions */
|
|
|
|
static int
|
|
get_typematic(keyboard_t *kbd)
|
|
{
|
|
#ifdef __i386__
|
|
/*
|
|
* Only some systems allow us to retrieve the keyboard repeat
|
|
* rate previously set via the BIOS...
|
|
*/
|
|
struct vm86frame vmf;
|
|
u_int32_t p;
|
|
|
|
bzero(&vmf, sizeof(vmf));
|
|
vmf.vmf_ax = 0xc000;
|
|
vm86_intcall(0x15, &vmf);
|
|
if ((vmf.vmf_eflags & PSL_C) || vmf.vmf_ah)
|
|
return ENODEV;
|
|
p = BIOS_PADDRTOVADDR(((u_int32_t)vmf.vmf_es << 4) + vmf.vmf_bx);
|
|
if ((readb(p + 6) & 0x40) == 0) /* int 16, function 0x09 supported? */
|
|
return ENODEV;
|
|
vmf.vmf_ax = 0x0900;
|
|
vm86_intcall(0x16, &vmf);
|
|
if ((vmf.vmf_al & 0x08) == 0) /* int 16, function 0x0306 supported? */
|
|
return ENODEV;
|
|
vmf.vmf_ax = 0x0306;
|
|
vm86_intcall(0x16, &vmf);
|
|
kbd->kb_delay1 = typematic_delay(vmf.vmf_bh << 5);
|
|
kbd->kb_delay2 = typematic_rate(vmf.vmf_bl);
|
|
return 0;
|
|
#else
|
|
return ENODEV;
|
|
#endif /* __i386__ */
|
|
}
|
|
|
|
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);
|
|
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, 0xff, c);
|
|
kbdc_set_device_mask(kbdc, m);
|
|
}
|
|
#endif
|
|
|
|
kbdc_lock(kbdc, FALSE);
|
|
return 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;
|
|
}
|
|
|
|
/*
|
|
* 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);
|
|
|
|
/* 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 keyoard 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, 0xff, c);
|
|
kbdc_lock(kbdc, FALSE);
|
|
if (bootverbose)
|
|
printf("atkbd: failed to reset the keyboard.\n");
|
|
return EIO;
|
|
}
|
|
|
|
/*
|
|
* Allow us to set the XT_KEYBD flag in UserConfig 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, 0xff, c);
|
|
kbdc_lock(kbdc, FALSE);
|
|
printf("atkbd: unable to set the XT keyboard mode.\n");
|
|
return EIO;
|
|
}
|
|
}
|
|
|
|
#ifdef __alpha__
|
|
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
|
|
|
|
/* 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, 0xff, 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 = sizeof(delays)/sizeof(delays[0]) - 1; i > 0; --i) {
|
|
if (delay >= delays[i])
|
|
break;
|
|
}
|
|
value = i << 5;
|
|
for (i = sizeof(rates)/sizeof(rates[0]) - 1; i > 0; --i) {
|
|
if (rate >= rates[i])
|
|
break;
|
|
}
|
|
value |= i;
|
|
return value;
|
|
}
|