c55a92c639
Path Revision i386/conf/GENERIC 1.162 i386/conf/Makefile.i386 1.146 i386/conf/files.i386 1.236 i386/conf/options.i386 1.111 i386/i386/machdep.c 1.329 i386/i386/userconfig.c 1.134 i386/isa/fd.c 1.135 i386/isa/if_ed.c 1.151 i386/isa/isa_dam.c 1.1 i386/isa/npx.c 1.67 isa/sio.c 1.224 dev/syscons/syscons.c 1.300 i386/isa/wd.c 1.194 isa/vga_isa.c 1.5 isa/atkbd_isa.c 1.3 isa/syscons_isa.c 1.2 Submitted by: Takahashi Yoshihiro <nyan@wyvern.cc.kogakuin.ac.jp>
1032 lines
24 KiB
C
1032 lines
24 KiB
C
/*
|
|
* Copyright (c) 1999 FreeBSD(98) port team.
|
|
* 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.
|
|
* 3. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* 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 THE AUTHOR 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.
|
|
*
|
|
* $Id: pc98kbd.c,v 1.5 1999/03/10 14:51:53 kato Exp $
|
|
*/
|
|
|
|
#include "pckbd.h"
|
|
#include "opt_kbd.h"
|
|
#include "opt_devfs.h"
|
|
|
|
#if NPCKBD > 0
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/module.h>
|
|
#include <sys/tty.h>
|
|
#include <sys/fcntl.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/bus.h>
|
|
#include <machine/bus.h>
|
|
#include <sys/rman.h>
|
|
|
|
#include <machine/resource.h>
|
|
|
|
#include <dev/kbd/kbdreg.h>
|
|
|
|
#include <pc98/pc98/pc98.h>
|
|
#include <pc98/pc98/pc98_machdep.h>
|
|
|
|
#include <isa/isavar.h>
|
|
#include <machine/lock.h>
|
|
|
|
#ifdef __i386__
|
|
#include <i386/isa/isa_device.h>
|
|
#endif
|
|
|
|
#define DRIVER_NAME "pckbd"
|
|
|
|
/* device configuration flags */
|
|
#define KB_CONF_FAIL_IF_NO_KBD (1 << 0) /* don't install if no kbd is found */
|
|
|
|
/* some macros */
|
|
#define PC98KBD_UNIT(dev) minor(dev)
|
|
#define PC98KBD_MKMINOR(unit) (unit)
|
|
|
|
/* cdev driver declaration */
|
|
|
|
typedef struct pckbd_softc {
|
|
short flags;
|
|
#define PC98KBD_ATTACHED (1 << 0)
|
|
keyboard_t *kbd;
|
|
#ifdef KBD_INSTALL_CDEV
|
|
genkbd_softc_t gensc;
|
|
#endif
|
|
} pckbd_softc_t;
|
|
|
|
#define PC98KBD_SOFTC(unit) \
|
|
((pckbd_softc_t)devclass_get_softc(pckbd_devclass, unit))
|
|
|
|
static devclass_t pckbd_devclass;
|
|
|
|
static int pckbdprobe(device_t dev);
|
|
static int pckbdattach(device_t dev);
|
|
static void pckbd_isa_intr(void *arg);
|
|
|
|
static device_method_t pckbd_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, pckbdprobe),
|
|
DEVMETHOD(device_attach, pckbdattach),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t pckbd_driver = {
|
|
DRIVER_NAME,
|
|
pckbd_methods,
|
|
DRIVER_TYPE_TTY,
|
|
sizeof(pckbd_softc_t),
|
|
};
|
|
|
|
DRIVER_MODULE(pckbd, isa, pckbd_driver, pckbd_devclass, 0, 0);
|
|
|
|
static int pckbd_probe_unit(int unit, int port, int irq,
|
|
int flags);
|
|
static int pckbd_attach_unit(int unit, pckbd_softc_t *sc,
|
|
int port, int irq, int flags);
|
|
static timeout_t pckbd_timeout;
|
|
|
|
#ifdef KBD_INSTALL_CDEV
|
|
|
|
static d_open_t pckbdopen;
|
|
static d_close_t pckbdclose;
|
|
static d_read_t pckbdread;
|
|
static d_ioctl_t pckbdioctl;
|
|
static d_poll_t pckbdpoll;
|
|
|
|
static struct cdevsw pckbd_cdevsw = {
|
|
pckbdopen, pckbdclose, pckbdread, nowrite,
|
|
pckbdioctl, nostop, nullreset, nodevtotty,
|
|
pckbdpoll, nommap, NULL, DRIVER_NAME,
|
|
NULL, -1,
|
|
};
|
|
|
|
#endif /* KBD_INSTALL_CDEV */
|
|
|
|
static int
|
|
pckbdprobe(device_t dev)
|
|
{
|
|
device_set_desc(dev, "PC-98 Keyboard");
|
|
|
|
return pckbd_probe_unit(device_get_unit(dev), isa_get_port(dev),
|
|
(1 << isa_get_irq(dev)), isa_get_flags(dev));
|
|
}
|
|
|
|
static int
|
|
pckbdattach(device_t dev)
|
|
{
|
|
void *ih;
|
|
struct resource *res;
|
|
int zero = 0;
|
|
|
|
pckbd_softc_t *sc = device_get_softc(dev);
|
|
bzero(sc, sizeof(*sc));
|
|
|
|
pckbd_attach_unit(device_get_unit(dev), sc, isa_get_port(dev),
|
|
(1 << isa_get_irq(dev)), isa_get_flags(dev));
|
|
|
|
res = bus_alloc_resource(dev, SYS_RES_IRQ, &zero, 0ul, ~0ul, 1,
|
|
RF_SHAREABLE | RF_ACTIVE);
|
|
BUS_SETUP_INTR(device_get_parent(dev), dev, res, pckbd_isa_intr,
|
|
sc, &ih);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
pckbd_isa_intr(void *arg)
|
|
{
|
|
pckbd_softc_t *sc = arg;
|
|
keyboard_t *kbd = sc->kbd;
|
|
|
|
(*kbdsw[kbd->kb_index]->intr)(kbd, NULL);
|
|
}
|
|
|
|
static int
|
|
pckbd_probe_unit(int unit, int port, int irq, int flags)
|
|
{
|
|
keyboard_switch_t *sw;
|
|
int args[2];
|
|
int error;
|
|
|
|
sw = kbd_get_switch(DRIVER_NAME);
|
|
if (sw == NULL)
|
|
return ENXIO;
|
|
|
|
args[0] = port;
|
|
args[1] = irq;
|
|
error = (*sw->probe)(unit, args, flags);
|
|
if (error)
|
|
return error;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
pckbd_attach_unit(int unit, pckbd_softc_t *sc, int port, int irq, int flags)
|
|
{
|
|
keyboard_switch_t *sw;
|
|
int args[2];
|
|
int error;
|
|
|
|
if (sc->flags & PC98KBD_ATTACHED)
|
|
return 0;
|
|
|
|
sw = kbd_get_switch(DRIVER_NAME);
|
|
if (sw == NULL)
|
|
return ENXIO;
|
|
|
|
/* reset, initialize and enable the device */
|
|
args[0] = port;
|
|
args[1] = irq;
|
|
sc->kbd = NULL;
|
|
error = (*sw->probe)(unit, args, flags);
|
|
if (error)
|
|
return error;
|
|
error = (*sw->init)(unit, &sc->kbd, args, flags);
|
|
if (error)
|
|
return error;
|
|
(*sw->enable)(sc->kbd);
|
|
|
|
#ifdef KBD_INSTALL_CDEV
|
|
/* attach a virtual keyboard cdev */
|
|
error = kbd_attach(makedev(0, PC98KBD_MKMINOR(unit)), sc->kbd,
|
|
&pckbd_cdevsw);
|
|
if (error)
|
|
return error;
|
|
#endif /* KBD_INSTALL_CDEV */
|
|
|
|
/*
|
|
* This is a kludge to compensate for lost keyboard interrupts.
|
|
* A similar code used to be in syscons. See below. XXX
|
|
*/
|
|
pckbd_timeout(sc->kbd);
|
|
|
|
if (bootverbose)
|
|
(*sw->diag)(sc->kbd, bootverbose);
|
|
|
|
sc->flags |= PC98KBD_ATTACHED;
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
pckbd_timeout(void *arg)
|
|
{
|
|
keyboard_t *kbd;
|
|
int s;
|
|
|
|
/* 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 scintr 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. `scintr()' doesn't
|
|
* read the mouse data directly, but `kbdio' routines will, as a
|
|
* side effect.
|
|
*/
|
|
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(pckbd_timeout, arg, hz/10);
|
|
}
|
|
|
|
/* cdev driver functions */
|
|
|
|
#ifdef KBD_INSTALL_CDEV
|
|
|
|
static int
|
|
pckbdopen(dev_t dev, int flag, int mode, struct proc *p)
|
|
{
|
|
pckbd_softc_t *sc;
|
|
|
|
sc = PC98KBD_SOFTC(PC98KBD_UNIT(dev));
|
|
if (sc == NULL)
|
|
return ENXIO;
|
|
if (mode & (FWRITE | O_CREAT | O_APPEND | O_TRUNC))
|
|
return ENODEV;
|
|
|
|
/* FIXME: set the initial input mode (K_XLATE?) and lock state? */
|
|
return genkbdopen(&sc->gensc, sc->kbd, flag, mode, p);
|
|
}
|
|
|
|
static int
|
|
pckbdclose(dev_t dev, int flag, int mode, struct proc *p)
|
|
{
|
|
pckbd_softc_t *sc;
|
|
|
|
sc = PC98KBD_SOFTC(PC98KBD_UNIT(dev));
|
|
return genkbdclose(&sc->gensc, sc->kbd, flag, mode, p);
|
|
}
|
|
|
|
static int
|
|
pckbdread(dev_t dev, struct uio *uio, int flag)
|
|
{
|
|
pckbd_softc_t *sc;
|
|
|
|
sc = PC98KBD_SOFTC(PC98KBD_UNIT(dev));
|
|
return genkbdread(&sc->gensc, sc->kbd, uio, flag);
|
|
}
|
|
|
|
static int
|
|
pckbdioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct proc *p)
|
|
{
|
|
pckbd_softc_t *sc;
|
|
|
|
sc = PC98KBD_SOFTC(PC98KBD_UNIT(dev));
|
|
return genkbdioctl(&sc->gensc, sc->kbd, cmd, arg, flag, p);
|
|
}
|
|
|
|
static int
|
|
pckbdpoll(dev_t dev, int event, struct proc *p)
|
|
{
|
|
pckbd_softc_t *sc;
|
|
|
|
sc = PC98KBD_SOFTC(PC98KBD_UNIT(dev));
|
|
return genkbdpoll(&sc->gensc, sc->kbd, event, p);
|
|
}
|
|
|
|
#endif /* KBD_INSTALL_CDEV */
|
|
|
|
/* LOW-LEVEL */
|
|
|
|
#include <machine/limits.h>
|
|
#include <machine/console.h>
|
|
#include <machine/clock.h>
|
|
|
|
#define PC98KBD_DEFAULT 0
|
|
|
|
typedef caddr_t KBDC;
|
|
|
|
typedef struct pckbd_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_state; /* shift/lock key state */
|
|
int ks_accents; /* accent key index (> 0) */
|
|
u_int ks_composed_char; /* composed char code (> 0) */
|
|
} pckbd_state_t;
|
|
|
|
/* keyboard driver declaration */
|
|
static int pckbd_configure(int flags);
|
|
static kbd_probe_t pckbd_probe;
|
|
static kbd_init_t pckbd_init;
|
|
static kbd_term_t pckbd_term;
|
|
static kbd_intr_t pckbd_intr;
|
|
static kbd_test_if_t pckbd_test_if;
|
|
static kbd_enable_t pckbd_enable;
|
|
static kbd_disable_t pckbd_disable;
|
|
static kbd_read_t pckbd_read;
|
|
static kbd_check_t pckbd_check;
|
|
static kbd_read_char_t pckbd_read_char;
|
|
static kbd_check_char_t pckbd_check_char;
|
|
static kbd_ioctl_t pckbd_ioctl;
|
|
static kbd_lock_t pckbd_lock;
|
|
static kbd_clear_state_t pckbd_clear_state;
|
|
static kbd_get_state_t pckbd_get_state;
|
|
static kbd_set_state_t pckbd_set_state;
|
|
static kbd_poll_mode_t pckbd_poll;
|
|
|
|
keyboard_switch_t pckbdsw = {
|
|
pckbd_probe,
|
|
pckbd_init,
|
|
pckbd_term,
|
|
pckbd_intr,
|
|
pckbd_test_if,
|
|
pckbd_enable,
|
|
pckbd_disable,
|
|
pckbd_read,
|
|
pckbd_check,
|
|
pckbd_read_char,
|
|
pckbd_check_char,
|
|
pckbd_ioctl,
|
|
pckbd_lock,
|
|
pckbd_clear_state,
|
|
pckbd_get_state,
|
|
pckbd_set_state,
|
|
genkbd_get_fkeystr,
|
|
pckbd_poll,
|
|
genkbd_diag,
|
|
};
|
|
|
|
KEYBOARD_DRIVER(pckbd, pckbdsw, pckbd_configure);
|
|
|
|
struct kbdc_softc {
|
|
int port; /* base port address */
|
|
int lock; /* FIXME: XXX not quite a semaphore... */
|
|
};
|
|
|
|
/* local functions */
|
|
static int probe_keyboard(KBDC kbdc, int flags);
|
|
static int init_keyboard(KBDC kbdc, int *type, int flags);
|
|
static KBDC kbdc_open(int port);
|
|
static int kbdc_lock(KBDC kbdc, int lock);
|
|
static int kbdc_data_ready(KBDC kbdc);
|
|
static int read_kbd_data(KBDC kbdc);
|
|
static int read_kbd_data_no_wait(KBDC kbdc);
|
|
static int wait_for_kbd_data(struct kbdc_softc *kbdc);
|
|
|
|
/* local variables */
|
|
|
|
/* the initial key map, accent map and fkey strings */
|
|
#include <dev/kbd/kbdtables.h>
|
|
|
|
/* structures for the default keyboard */
|
|
static keyboard_t default_kbd;
|
|
static pckbd_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
|
|
pckbd_configure(int flags)
|
|
{
|
|
keyboard_t *kbd;
|
|
int arg[2];
|
|
int i;
|
|
|
|
/* XXX: a kludge to obtain the device configuration flags */
|
|
if (resource_int_value(DRIVER_NAME, 0, "flags", &i) == 0) {
|
|
flags |= i;
|
|
/* if the driver is disabled, unregister the keyboard if any */
|
|
if (resource_int_value(DRIVER_NAME, 0, "disabled", &i) == 0
|
|
&& i != 0) {
|
|
i = kbd_find_keyboard(DRIVER_NAME, PC98KBD_DEFAULT);
|
|
if (i >= 0) {
|
|
kbd = kbd_get_keyboard(i);
|
|
kbd_unregister(kbd);
|
|
kbd->kb_flags &= ~KB_REGISTERED;
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* probe the default keyboard */
|
|
arg[0] = -1;
|
|
arg[1] = -1;
|
|
kbd = NULL;
|
|
if (pckbd_probe(PC98KBD_DEFAULT, arg, flags))
|
|
return 0;
|
|
if (pckbd_init(PC98KBD_DEFAULT, &kbd, arg, flags))
|
|
return 0;
|
|
|
|
/* return the number of found keyboards */
|
|
return 1;
|
|
}
|
|
|
|
/* low-level functions */
|
|
|
|
/* detect a keyboard */
|
|
static int
|
|
pckbd_probe(int unit, void *arg, int flags)
|
|
{
|
|
KBDC kbdc;
|
|
int *data = (int *)arg;
|
|
|
|
if (unit != PC98KBD_DEFAULT)
|
|
return ENXIO;
|
|
if (KBD_IS_PROBED(&default_kbd))
|
|
return 0;
|
|
|
|
kbdc = kbdc_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
|
|
pckbd_init(int unit, keyboard_t **kbdp, void *arg, int flags)
|
|
{
|
|
keyboard_t *kbd;
|
|
pckbd_state_t *state;
|
|
keymap_t *keymap;
|
|
accentmap_t *accmap;
|
|
fkeytab_t *fkeymap;
|
|
int fkeymap_size;
|
|
int *data = (int *)arg;
|
|
|
|
if (unit != PC98KBD_DEFAULT) /* shouldn't happen */
|
|
return ENXIO;
|
|
|
|
*kbdp = kbd = &default_kbd;
|
|
state = &default_kbd_state;
|
|
if (!KBD_IS_PROBED(kbd)) {
|
|
keymap = &default_keymap;
|
|
accmap = &default_accentmap;
|
|
fkeymap = default_fkeytab;
|
|
fkeymap_size =
|
|
sizeof(default_fkeytab)/sizeof(default_fkeytab[0]);
|
|
|
|
state->kbdc = kbdc_open(data[0]);
|
|
if (state->kbdc == NULL)
|
|
return ENXIO;
|
|
kbd_init_struct(kbd, DRIVER_NAME, KB_OTHER, unit, flags,
|
|
data[0], IO_KBDSIZE);
|
|
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);
|
|
}
|
|
pckbd_clear_state(kbd);
|
|
state->ks_mode = K_XLATE;
|
|
KBD_PROBE_DONE(kbd);
|
|
}
|
|
if (!KBD_IS_INITIALIZED(kbd) && !(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;
|
|
pckbd_ioctl(kbd, KDSETLED, (caddr_t)&state->ks_state);
|
|
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
|
|
pckbd_term(keyboard_t *kbd)
|
|
{
|
|
kbd_unregister(kbd);
|
|
return 0;
|
|
}
|
|
|
|
/* keyboard interrupt routine */
|
|
static int
|
|
pckbd_intr(keyboard_t *kbd, void *arg)
|
|
{
|
|
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 = pckbd_read_char(kbd, FALSE);
|
|
} while (c != NOKEY);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* test the interface to the device */
|
|
static int
|
|
pckbd_test_if(keyboard_t *kbd)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Enable the access to the device; until this function is called,
|
|
* the client cannot read from the keyboard.
|
|
*/
|
|
static int
|
|
pckbd_enable(keyboard_t *kbd)
|
|
{
|
|
int s;
|
|
|
|
s = spltty();
|
|
KBD_ACTIVATE(kbd);
|
|
splx(s);
|
|
return 0;
|
|
}
|
|
|
|
/* disallow the access to the device */
|
|
static int
|
|
pckbd_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
|
|
pckbd_read(keyboard_t *kbd, int wait)
|
|
{
|
|
int c;
|
|
|
|
if (wait)
|
|
c = read_kbd_data(((pckbd_state_t *)kbd->kb_data)->kbdc);
|
|
else
|
|
c = read_kbd_data_no_wait(((pckbd_state_t *)kbd->kb_data)->kbdc);
|
|
return (KBD_IS_ACTIVE(kbd) ? c : -1);
|
|
}
|
|
|
|
/* check if data is waiting */
|
|
static int
|
|
pckbd_check(keyboard_t *kbd)
|
|
{
|
|
if (!KBD_IS_ACTIVE(kbd))
|
|
return FALSE;
|
|
return kbdc_data_ready(((pckbd_state_t *)kbd->kb_data)->kbdc);
|
|
}
|
|
|
|
/* read char from the keyboard */
|
|
static u_int
|
|
pckbd_read_char(keyboard_t *kbd, int wait)
|
|
{
|
|
pckbd_state_t *state;
|
|
u_int action;
|
|
int scancode;
|
|
int keycode;
|
|
|
|
state = (pckbd_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;
|
|
}
|
|
|
|
/* 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(scancode) {
|
|
case 0xF3: /* GRPH (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 0x73: /* GRPH (compose key) pressed */
|
|
if (!(state->ks_flags & COMPOSE)) {
|
|
state->ks_flags |= COMPOSE;
|
|
state->ks_composed_char = 0;
|
|
}
|
|
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 (scancode) {
|
|
/* key pressed, process it */
|
|
case 0x42: case 0x43: case 0x44: /* keypad 7,8,9 */
|
|
state->ks_composed_char *= 10;
|
|
state->ks_composed_char += scancode - 0x3B;
|
|
if (state->ks_composed_char > UCHAR_MAX)
|
|
return ERRKEY;
|
|
goto next_code;
|
|
case 0x46: case 0x47: case 0x48: /* keypad 4,5,6 */
|
|
state->ks_composed_char *= 10;
|
|
state->ks_composed_char += scancode - 0x42;
|
|
if (state->ks_composed_char > UCHAR_MAX)
|
|
return ERRKEY;
|
|
goto next_code;
|
|
case 0x4A: case 0x4B: case 0x4C: /* keypad 1,2,3 */
|
|
state->ks_composed_char *= 10;
|
|
state->ks_composed_char += scancode - 0x49;
|
|
if (state->ks_composed_char > UCHAR_MAX)
|
|
return ERRKEY;
|
|
goto next_code;
|
|
case 0x4E: /* 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 0xC2: case 0xC3: case 0xC4: /* keypad 7,8,9 */
|
|
case 0xC6: case 0xC7: case 0xC8: /* keypad 4,5,6 */
|
|
case 0xCA: case 0xCB: case 0xCC: /* keypad 1,2,3 */
|
|
case 0xCE: /* keypad 0 */
|
|
goto next_code;
|
|
|
|
case 0x73: /* GRPH 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
|
|
pckbd_check_char(keyboard_t *kbd)
|
|
{
|
|
pckbd_state_t *state;
|
|
|
|
if (!KBD_IS_ACTIVE(kbd))
|
|
return FALSE;
|
|
state = (pckbd_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
|
|
pckbd_ioctl(keyboard_t *kbd, u_long cmd, caddr_t arg)
|
|
{
|
|
pckbd_state_t *state = kbd->kb_data;
|
|
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) {
|
|
pckbd_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 (kbd->kb_keymap->n_keys > ALTGR_OFFSET) {
|
|
if (i & ALKED)
|
|
i |= CLKED;
|
|
else
|
|
i &= ~CLKED;
|
|
}
|
|
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 pckbd_ioctl(kbd, KDSETLED, arg);
|
|
|
|
case KDSETRAD: /* set keyboard repeat rate (old interface)*/
|
|
break;
|
|
case KDSETREPEAT: /* set keyboard repeat rate (new interface) */
|
|
break;
|
|
|
|
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
|
|
pckbd_lock(keyboard_t *kbd, int lock)
|
|
{
|
|
return kbdc_lock(((pckbd_state_t *)kbd->kb_data)->kbdc, lock);
|
|
}
|
|
|
|
/* clear the internal state of the keyboard */
|
|
static void
|
|
pckbd_clear_state(keyboard_t *kbd)
|
|
{
|
|
pckbd_state_t *state;
|
|
|
|
state = (pckbd_state_t *)kbd->kb_data;
|
|
state->ks_flags = 0;
|
|
state->ks_state &= LOCK_MASK; /* preserve locking key state */
|
|
state->ks_accents = 0;
|
|
state->ks_composed_char = 0;
|
|
}
|
|
|
|
/* save the internal state */
|
|
static int
|
|
pckbd_get_state(keyboard_t *kbd, void *buf, size_t len)
|
|
{
|
|
if (len == 0)
|
|
return sizeof(pckbd_state_t);
|
|
if (len < sizeof(pckbd_state_t))
|
|
return -1;
|
|
bcopy(kbd->kb_data, buf, sizeof(pckbd_state_t));
|
|
return 0;
|
|
}
|
|
|
|
/* set the internal state */
|
|
static int
|
|
pckbd_set_state(keyboard_t *kbd, void *buf, size_t len)
|
|
{
|
|
if (len < sizeof(pckbd_state_t))
|
|
return ENOMEM;
|
|
if (((pckbd_state_t *)kbd->kb_data)->kbdc
|
|
!= ((pckbd_state_t *)buf)->kbdc)
|
|
return ENOMEM;
|
|
bcopy(buf, kbd->kb_data, sizeof(pckbd_state_t));
|
|
return 0;
|
|
}
|
|
|
|
/* set polling mode */
|
|
static int
|
|
pckbd_poll(keyboard_t *kbd, int on)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/* local functions */
|
|
|
|
static int
|
|
probe_keyboard(KBDC kbdc, int flags)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
init_keyboard(KBDC kbdc, int *type, int flags)
|
|
{
|
|
*type = KB_OTHER;
|
|
return 0;
|
|
}
|
|
|
|
/* keyboard I/O routines */
|
|
|
|
/* retry count */
|
|
#ifndef KBD_MAXRETRY
|
|
#define KBD_MAXRETRY 3
|
|
#endif
|
|
|
|
/* timing parameters */
|
|
#ifndef KBD_RESETDELAY
|
|
#define KBD_RESETDELAY 200 /* wait 200msec after kbd/mouse reset */
|
|
#endif
|
|
#ifndef KBD_MAXWAIT
|
|
#define KBD_MAXWAIT 5 /* wait 5 times at most after reset */
|
|
#endif
|
|
|
|
/* I/O recovery time */
|
|
#define KBDC_DELAYTIME 37
|
|
#define KBDD_DELAYTIME 37
|
|
|
|
/* I/O ports */
|
|
#define KBD_STATUS_PORT 2 /* status port, read */
|
|
#define KBD_DATA_PORT 0 /* data port, read */
|
|
|
|
/* status bits (KBD_STATUS_PORT) */
|
|
#define KBDS_BUFFER_FULL 0x0002
|
|
|
|
/* macros */
|
|
|
|
#define kbdcp(p) ((struct kbdc_softc *)(p))
|
|
|
|
/* local variables */
|
|
|
|
static struct kbdc_softc kbdc_softc[NPCKBD] = { { 0 }, };
|
|
|
|
/* associate a port number with a KBDC */
|
|
|
|
static KBDC
|
|
kbdc_open(int port)
|
|
{
|
|
if (port <= 0)
|
|
port = IO_KBD;
|
|
|
|
if (NPCKBD) {
|
|
/* PC-98 has only one keyboard I/F */
|
|
kbdc_softc[0].port = port;
|
|
kbdc_softc[0].lock = FALSE;
|
|
return (KBDC)&kbdc_softc[0];
|
|
}
|
|
return NULL; /* You didn't include sc driver in your config file */
|
|
}
|
|
|
|
/* set/reset polling lock */
|
|
static int
|
|
kbdc_lock(KBDC p, int lock)
|
|
{
|
|
int prevlock;
|
|
|
|
prevlock = kbdcp(p)->lock;
|
|
kbdcp(p)->lock = lock;
|
|
|
|
return (prevlock != lock);
|
|
}
|
|
|
|
/* check if any data is waiting to be processed */
|
|
static int
|
|
kbdc_data_ready(KBDC p)
|
|
{
|
|
return (inb(kbdcp(p)->port + KBD_STATUS_PORT) & KBDS_BUFFER_FULL);
|
|
}
|
|
|
|
/* wait for data from the keyboard */
|
|
static int
|
|
wait_for_kbd_data(struct kbdc_softc *kbdc)
|
|
{
|
|
/* CPU will stay inside the loop for 200msec at most */
|
|
int retry = 10000;
|
|
int port = kbdc->port;
|
|
|
|
while (!(inb(port + KBD_STATUS_PORT) & KBDS_BUFFER_FULL)) {
|
|
DELAY(KBDD_DELAYTIME);
|
|
DELAY(KBDC_DELAYTIME);
|
|
if (--retry < 0)
|
|
return 0;
|
|
}
|
|
DELAY(KBDD_DELAYTIME);
|
|
return 1;
|
|
}
|
|
|
|
/* read one byte from the keyboard */
|
|
static int
|
|
read_kbd_data(KBDC p)
|
|
{
|
|
if (!wait_for_kbd_data(kbdcp(p)))
|
|
return -1; /* timeout */
|
|
DELAY(KBDC_DELAYTIME);
|
|
return inb(kbdcp(p)->port + KBD_DATA_PORT);
|
|
}
|
|
|
|
/* read one byte from the keyboard, but return immediately if
|
|
* no data is waiting
|
|
*/
|
|
static int
|
|
read_kbd_data_no_wait(KBDC p)
|
|
{
|
|
if (inb(kbdcp(p)->port + KBD_STATUS_PORT) & KBDS_BUFFER_FULL) {
|
|
DELAY(KBDD_DELAYTIME);
|
|
return inb(kbdcp(p)->port + KBD_DATA_PORT);
|
|
}
|
|
return -1; /* no data */
|
|
}
|
|
|
|
#endif /* NPCKBD > 0 */
|