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freebsd/sys/dev/kbd/kbd.c
Kazutaka YOKOTA e9deda23ae Keyboard driver update in preparation for the USB keyboard driver. 
- Refined internal interface in keyboard drivers so that:
  1. the side effect of device probe is kept minimal,
  2. polling mode function is added,
  3. and new ioctl and configuration options are added (see below).

- Added new ioctl: KDSETREPEAT
  Set keyboard typematic rate.  There has existed an ioctl command,
  KDSETRAD, for the same purpose.  However, KDSETRAD is dependent on
  the AT keyboard.  KDSETREPEAT provides more generic interface.
  KDSETRAD will still be supported in the atkbd driver.

- Added new configuration options:
  ATKBD_DFLT_KEYMAP
  Specify a keymap to be used as the default, built-in keymap.
  (There has been undocumented options, DKKEYMAP, UKKEYMAP, GRKEYMAP,
  SWKEYMAP, RUKEYMAP, ESKEYMAP, and ISKEYMAP to set the default keymap.
  These options are now gone for good.  The new option is more general.)

  KBD_DISABLE_KEYMAP_LOADING
  Don't allow the user to change the keymap.
1999-03-10 10:36:53 +00:00

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/*-
* 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.
*
* $Id: kbd.c,v 1.3 1999/01/12 12:23:00 yokota Exp $
*/
#include "kbd.h"
#include "opt_kbd.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/conf.h>
#include <sys/proc.h>
#include <sys/tty.h>
#include <sys/poll.h>
#include <sys/vnode.h>
#include <sys/uio.h>
#include <machine/console.h>
#include <dev/kbd/kbdreg.h>
/* local arrays */
/*
* We need at least one entry each in order to initialize a keyboard
* for the kernel console. The arrays will be increased dynamically
* when necessary.
*/
static int keyboards = 1;
static keyboard_t *kbd_ini;
static keyboard_t **keyboard = &kbd_ini;
static keyboard_switch_t *kbdsw_ini;
keyboard_switch_t **kbdsw = &kbdsw_ini;
#ifdef KBD_INSTALL_CDEV
static struct cdevsw *kbdcdevsw_ini;
static struct cdevsw **kbdcdevsw = &kbdcdevsw_ini;
#endif
#define ARRAY_DELTA 4
static int
kbd_realloc_array(void)
{
keyboard_t **new_kbd;
keyboard_switch_t **new_kbdsw;
#ifdef KBD_INSTALL_CDEV
struct cdevsw **new_cdevsw;
#endif
int newsize;
int s;
s = spltty();
newsize = ((keyboards + ARRAY_DELTA)/ARRAY_DELTA)*ARRAY_DELTA;
new_kbd = malloc(sizeof(*new_kbd)*newsize, M_DEVBUF, M_NOWAIT);
if (new_kbd == NULL) {
splx(s);
return ENOMEM;
}
new_kbdsw = malloc(sizeof(*new_kbdsw)*newsize, M_DEVBUF, M_NOWAIT);
if (new_kbdsw == NULL) {
free(new_kbd, M_DEVBUF);
splx(s);
return ENOMEM;
}
#ifdef KBD_INSTALL_CDEV
new_cdevsw = malloc(sizeof(*new_cdevsw)*newsize, M_DEVBUF, M_NOWAIT);
if (new_cdevsw == NULL) {
free(new_kbd, M_DEVBUF);
free(new_kbdsw, M_DEVBUF);
splx(s);
return ENOMEM;
}
#endif
bzero(new_kbd, sizeof(*new_kbd)*newsize);
bzero(new_kbdsw, sizeof(*new_kbdsw)*newsize);
bcopy(keyboard, new_kbd, sizeof(*keyboard)*keyboards);
bcopy(kbdsw, new_kbdsw, sizeof(*kbdsw)*keyboards);
#ifdef KBD_INSTALL_CDEV
bzero(new_cdevsw, sizeof(*new_cdevsw)*newsize);
bcopy(kbdcdevsw, new_cdevsw, sizeof(*kbdcdevsw)*keyboards);
#endif
if (keyboards > 1) {
free(keyboard, M_DEVBUF);
free(kbdsw, M_DEVBUF);
#ifdef KBD_INSTALL_CDEV
free(kbdcdevsw, M_DEVBUF);
#endif
}
keyboard = new_kbd;
kbdsw = new_kbdsw;
#ifdef KBD_INSTALL_CDEV
kbdcdevsw = new_cdevsw;
#endif
keyboards = newsize;
splx(s);
if (bootverbose)
printf("kbd: new array size %d\n", keyboards);
return 0;
}
/*
* Low-level keyboard driver functions
* Keyboard subdrivers, such as the AT keyboard driver and the USB keyboard
* driver, call these functions to initialize the keyboard_t structure
* and register it to the virtual keyboard driver `kbd'.
*/
/* initialize the keyboard_t structure */
void
kbd_init_struct(keyboard_t *kbd, char *name, int type, int unit, int config,
int port, int port_size)
{
kbd->kb_flags = KB_NO_DEVICE; /* device has not been found */
kbd->kb_name = name;
kbd->kb_type = type;
kbd->kb_unit = unit;
kbd->kb_config = config & ~KB_CONF_PROBE_ONLY;
kbd->kb_led = 0; /* unknown */
kbd->kb_io_base = port;
kbd->kb_io_size = port_size;
kbd->kb_data = NULL;
kbd->kb_keymap = NULL;
kbd->kb_accentmap = NULL;
kbd->kb_fkeytab = NULL;
kbd->kb_fkeytab_size = 0;
kbd->kb_delay1 = KB_DELAY1; /* these values are advisory only */
kbd->kb_delay2 = KB_DELAY2;
}
void
kbd_set_maps(keyboard_t *kbd, keymap_t *keymap, accentmap_t *accmap,
fkeytab_t *fkeymap, int fkeymap_size)
{
kbd->kb_keymap = keymap;
kbd->kb_accentmap = accmap;
kbd->kb_fkeytab = fkeymap;
kbd->kb_fkeytab_size = fkeymap_size;
}
/* register a keyboard and associate it with a function table */
int
kbd_register(keyboard_t *kbd)
{
keyboard_driver_t **list;
keyboard_driver_t *p;
int index;
for (index = 0; index < keyboards; ++index) {
if (keyboard[index] == NULL)
break;
}
if (index >= keyboards) {
if (kbd_realloc_array())
return -1;
}
kbd->kb_index = index;
KBD_UNBUSY(kbd);
KBD_VALID(kbd);
kbd->kb_active = 0; /* disabled until someone calls kbd_enable() */
kbd->kb_token = NULL;
kbd->kb_callback.kc_func = NULL;
kbd->kb_callback.kc_arg = NULL;
list = (keyboard_driver_t **)kbddriver_set.ls_items;
while ((p = *list++) != NULL) {
if (strcmp(p->name, kbd->kb_name) == 0) {
keyboard[index] = kbd;
kbdsw[index] = p->kbdsw;
return index;
}
}
return -1;
}
int
kbd_unregister(keyboard_t *kbd)
{
int error;
int s;
if ((kbd->kb_index < 0) || (kbd->kb_index >= keyboards))
return ENOENT;
if (keyboard[kbd->kb_index] != kbd)
return ENOENT;
s = spltty();
if (KBD_IS_BUSY(kbd)) {
error = (*kbd->kb_callback.kc_func)(kbd, KBDIO_UNLOADING,
kbd->kb_callback.kc_arg);
if (error) {
splx(s);
return error;
}
if (KBD_IS_BUSY(kbd)) {
splx(s);
return EBUSY;
}
}
KBD_INVALID(kbd);
keyboard[kbd->kb_index] = NULL;
kbdsw[kbd->kb_index] = NULL;
splx(s);
return 0;
}
/* find a funciton table by the driver name */
keyboard_switch_t
*kbd_get_switch(char *driver)
{
keyboard_driver_t **list;
keyboard_driver_t *p;
list = (keyboard_driver_t **)kbddriver_set.ls_items;
while ((p = *list++) != NULL) {
if (strcmp(p->name, driver) == 0)
return p->kbdsw;
}
return NULL;
}
/*
* Keyboard client functions
* Keyboard clients, such as the console driver `syscons' and the keyboard
* cdev driver, use these functions to claim and release a keyboard for
* exclusive use.
*/
/* find the keyboard specified by a driver name and a unit number */
int
kbd_find_keyboard(char *driver, int unit)
{
int i;
for (i = 0; i < keyboards; ++i) {
if (keyboard[i] == NULL)
continue;
if (!KBD_IS_VALID(keyboard[i]))
continue;
if (strcmp("*", driver) && strcmp(keyboard[i]->kb_name, driver))
continue;
if ((unit != -1) && (keyboard[i]->kb_unit != unit))
continue;
return i;
}
return -1;
}
/* allocate a keyboard */
int
kbd_allocate(char *driver, int unit, void *id, kbd_callback_func_t *func,
void *arg)
{
int index;
int s;
if (func == NULL)
return -1;
s = spltty();
index = kbd_find_keyboard(driver, unit);
if (index >= 0) {
if (KBD_IS_BUSY(keyboard[index])) {
splx(s);
return -1;
}
keyboard[index]->kb_token = id;
KBD_BUSY(keyboard[index]);
keyboard[index]->kb_callback.kc_func = func;
keyboard[index]->kb_callback.kc_arg = arg;
(*kbdsw[index]->clear_state)(keyboard[index]);
}
splx(s);
return index;
}
int
kbd_release(keyboard_t *kbd, void *id)
{
int error;
int s;
s = spltty();
if (!KBD_IS_VALID(kbd) || !KBD_IS_BUSY(kbd)) {
error = EINVAL;
} else if (kbd->kb_token != id) {
error = EPERM;
} else {
kbd->kb_token = NULL;
KBD_UNBUSY(kbd);
kbd->kb_callback.kc_func = NULL;
kbd->kb_callback.kc_arg = NULL;
(*kbdsw[kbd->kb_index]->clear_state)(kbd);
error = 0;
}
splx(s);
return error;
}
int
kbd_change_callback(keyboard_t *kbd, void *id, kbd_callback_func_t *func,
void *arg)
{
int error;
int s;
s = spltty();
if (!KBD_IS_VALID(kbd) || !KBD_IS_BUSY(kbd)) {
error = EINVAL;
} else if (kbd->kb_token != id) {
error = EPERM;
} else if (func == NULL) {
error = EINVAL;
} else {
kbd->kb_callback.kc_func = func;
kbd->kb_callback.kc_arg = arg;
error = 0;
}
splx(s);
return error;
}
/* get a keyboard structure */
keyboard_t
*kbd_get_keyboard(int index)
{
if ((index < 0) || (index >= keyboards))
return NULL;
if (!KBD_IS_VALID(keyboard[index]))
return NULL;
return keyboard[index];
}
/*
* The back door for the console driver; configure keyboards
* This function is for the kernel console to initialize keyboards
* at very early stage.
*/
int
kbd_configure(int flags)
{
keyboard_driver_t **list;
keyboard_driver_t *p;
list = (keyboard_driver_t **)kbddriver_set.ls_items;
while ((p = *list++) != NULL) {
if (p->configure != NULL)
(*p->configure)(flags);
}
return 0;
}
#ifdef KBD_INSTALL_CDEV
/*
* Virtual keyboard cdev driver functions
* The virtual keyboard driver dispatches driver functions to
* appropriate subdrivers.
*/
#define KBD_UNIT(dev) minor(dev)
static d_open_t kbdopen;
static d_close_t kbdclose;
static d_read_t kbdread;
static d_write_t kbdwrite;
static d_ioctl_t kbdioctl;
static d_reset_t kbdreset;
static d_devtotty_t kbddevtotty;
static d_poll_t kbdpoll;
static d_mmap_t kbdmmap;
#define CDEV_MAJOR 112
static struct cdevsw kbd_cdevsw = {
kbdopen, kbdclose, kbdread, kbdwrite, /* ??? */
kbdioctl, nullstop, kbdreset, kbddevtotty,
kbdpoll, kbdmmap, nostrategy, "kbd",
NULL, -1, nodump, nopsize,
};
static void
vkbdattach(void *arg)
{
static int kbd_devsw_installed = FALSE;
dev_t dev;
if (!kbd_devsw_installed) {
dev = makedev(CDEV_MAJOR, 0);
cdevsw_add(&dev, &kbd_cdevsw, NULL);
kbd_devsw_installed = TRUE;
}
}
PSEUDO_SET(vkbdattach, kbd);
int
kbd_attach(dev_t dev, keyboard_t *kbd, struct cdevsw *cdevsw)
{
int s;
if (kbd->kb_index >= keyboards)
return EINVAL;
if (keyboard[kbd->kb_index] != kbd)
return EINVAL;
s = spltty();
kbd->kb_minor = minor(dev);
kbdcdevsw[kbd->kb_index] = cdevsw;
splx(s);
/* XXX: DEVFS? */
printf("kbd%d at %s%d\n", kbd->kb_index, kbd->kb_name, kbd->kb_unit);
return 0;
}
int
kbd_detach(dev_t dev, keyboard_t *kbd, struct cdevsw *cdevsw)
{
int s;
if (kbd->kb_index >= keyboards)
return EINVAL;
if (keyboard[kbd->kb_index] != kbd)
return EINVAL;
if (kbdcdevsw[kbd->kb_index] != cdevsw)
return EINVAL;
s = spltty();
(*kbdsw[kbd->kb_index]->term)(kbd);
kbdcdevsw[kbd->kb_index] = NULL;
splx(s);
return 0;
}
static int
kbdopen(dev_t dev, int flag, int mode, struct proc *p)
{
int unit;
unit = KBD_UNIT(dev);
if (unit >= keyboards)
return ENXIO;
if (kbdcdevsw[unit] == NULL)
return ENXIO;
if (KBD_IS_BUSY(keyboard[unit]))
return EBUSY;
return (*kbdcdevsw[unit]->d_open)(makedev(0, keyboard[unit]->kb_minor),
flag, mode, p);
}
static int
kbdclose(dev_t dev, int flag, int mode, struct proc *p)
{
int unit;
unit = KBD_UNIT(dev);
if (kbdcdevsw[unit] == NULL)
return ENXIO;
return (*kbdcdevsw[unit]->d_close)(makedev(0, keyboard[unit]->kb_minor),
flag, mode, p);
}
static int
kbdread(dev_t dev, struct uio *uio, int flag)
{
int unit;
unit = KBD_UNIT(dev);
if (kbdcdevsw[unit] == NULL)
return ENXIO;
return (*kbdcdevsw[unit]->d_read)(makedev(0, keyboard[unit]->kb_minor),
uio, flag);
}
static int
kbdwrite(dev_t dev, struct uio *uio, int flag)
{
int unit;
unit = KBD_UNIT(dev);
if (kbdcdevsw[unit] == NULL)
return ENXIO;
return (*kbdcdevsw[unit]->d_write)(makedev(0, keyboard[unit]->kb_minor),
uio, flag);
}
static int
kbdioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct proc *p)
{
int unit;
unit = KBD_UNIT(dev);
if (kbdcdevsw[unit] == NULL)
return ENXIO;
return (*kbdcdevsw[unit]->d_ioctl)(makedev(0, keyboard[unit]->kb_minor),
cmd, arg, flag, p);
}
static int
kbdreset(dev_t dev)
{
int unit;
unit = KBD_UNIT(dev);
if (kbdcdevsw[unit] == NULL)
return ENXIO;
return (*kbdcdevsw[unit]->d_reset)(makedev(0, keyboard[unit]->kb_minor));
}
static struct tty
*kbddevtotty(dev_t dev)
{
int unit;
unit = KBD_UNIT(dev);
if (kbdcdevsw[unit] == NULL)
return NULL;
return (*kbdcdevsw[unit]->d_devtotty)(makedev(0, keyboard[unit]->kb_minor));
}
static int
kbdpoll(dev_t dev, int event, struct proc *p)
{
int unit;
unit = KBD_UNIT(dev);
if (kbdcdevsw[unit] == NULL)
return ENXIO;
return (*kbdcdevsw[unit]->d_poll)(makedev(0, keyboard[unit]->kb_minor),
event, p);
}
static int
kbdmmap(dev_t dev, vm_offset_t offset, int nprot)
{
int unit;
unit = KBD_UNIT(dev);
if (kbdcdevsw[unit] == NULL)
return ENXIO;
return (*kbdcdevsw[unit]->d_mmap)(makedev(0, keyboard[unit]->kb_minor),
offset, nprot);
}
/*
* Generic keyboard cdev driver functions
* Keyboard subdrivers may call these functions to implement common
* driver functions.
*/
#define KB_QSIZE 512
#define KB_BUFSIZE 64
static kbd_callback_func_t genkbd_event;
int
genkbdopen(genkbd_softc_t *sc, keyboard_t *kbd, int mode, int flag,
struct proc *p)
{
int s;
int i;
s = spltty();
if (!KBD_IS_VALID(kbd)) {
splx(s);
return ENXIO;
}
i = kbd_allocate(kbd->kb_name, kbd->kb_unit, sc,
genkbd_event, (void *)sc);
if (i < 0) {
splx(s);
return EBUSY;
}
/* assert(i == kbd->kb_index) */
/* assert(kbd == kbd_get_keyboard(i)) */
/*
* NOTE: even when we have successfully claimed a keyboard,
* the device may still be missing (!KBD_HAS_DEVICE(kbd)).
*/
#if 0
bzero(&sc->gkb_q, sizeof(sc->gkb_q));
#endif
clist_alloc_cblocks(&sc->gkb_q, KB_QSIZE, KB_QSIZE/2); /* XXX */
sc->gkb_rsel.si_flags = 0;
sc->gkb_rsel.si_pid = 0;
splx(s);
return 0;
}
int
genkbdclose(genkbd_softc_t *sc, keyboard_t *kbd, int mode, int flag,
struct proc *p)
{
int s;
/*
* NOTE: the device may have already become invalid.
* !KBD_IS_VALID(kbd)
*/
s = spltty();
kbd_release(kbd, (void *)sc);
#if 0
clist_free_cblocks(&sc->gkb_q);
#endif
splx(s);
return 0;
}
int
genkbdread(genkbd_softc_t *sc, keyboard_t *kbd, struct uio *uio, int flag)
{
u_char buffer[KB_BUFSIZE];
int len;
int error;
int s;
/* wait for input */
s = spltty();
while (sc->gkb_q.c_cc == 0) {
if (!KBD_IS_VALID(kbd)) {
splx(s);
return EIO;
}
if (flag & IO_NDELAY) {
splx(s);
return EWOULDBLOCK;
}
sc->gkb_flags |= KB_ASLEEP;
error = tsleep((caddr_t)sc, PZERO | PCATCH, "kbdrea", 0);
if (error) {
sc->gkb_flags &= ~KB_ASLEEP;
splx(s);
return error;
}
}
splx(s);
/* copy as much input as possible */
error = 0;
while (uio->uio_resid > 0) {
len = imin(uio->uio_resid, sizeof(buffer));
len = q_to_b(&sc->gkb_q, buffer, len);
if (len <= 0)
break;
error = uiomove(buffer, len, uio);
if (error)
break;
}
return error;
}
int
genkbdwrite(genkbd_softc_t *sc, keyboard_t *kbd, struct uio *uio, int flag)
{
if (!KBD_IS_VALID(kbd))
return ENXIO;
return ENODEV;
}
int
genkbdioctl(genkbd_softc_t *sc, keyboard_t *kbd, u_long cmd, caddr_t arg,
int flag, struct proc *p)
{
int error;
if (kbd == NULL) /* XXX */
return ENXIO;
if (!KBD_IS_VALID(kbd))
return ENXIO;
error = (*kbdsw[kbd->kb_index]->ioctl)(kbd, cmd, arg);
if (error == ENOIOCTL)
error = ENODEV;
return error;
}
int
genkbdpoll(genkbd_softc_t *sc, keyboard_t *kbd, int events, struct proc *p)
{
int revents;
int s;
revents = 0;
s = spltty();
if (events & (POLLIN | POLLRDNORM)) {
if ((sc->gkb_q.c_cc > 0) || !KBD_IS_VALID(kbd))
revents |= (POLLIN | POLLRDNORM);
else
selrecord(p, &sc->gkb_rsel);
}
splx(s);
return revents;
}
static int
genkbd_event(keyboard_t *kbd, int event, void *arg)
{
genkbd_softc_t *sc;
size_t len;
u_char *cp;
int mode;
int c;
/* assert(KBD_IS_VALID(kbd)) */
sc = (genkbd_softc_t *)arg;
switch (event) {
case KBDIO_KEYINPUT:
break;
case KBDIO_UNLOADING:
/* the keyboard is going... */
kbd_release(kbd, (void *)sc);
return 0;
default:
return EINVAL;
}
/* obtain the current key input mode */
if ((*kbdsw[kbd->kb_index]->ioctl)(kbd, KDGKBMODE, (caddr_t)&mode))
mode = K_XLATE;
/* read all pending input */
while ((*kbdsw[kbd->kb_index]->check_char)(kbd)) {
c = (*kbdsw[kbd->kb_index]->read_char)(kbd, FALSE);
if (c == NOKEY)
continue;
if (c == ERRKEY) /* XXX: ring bell? */
continue;
if (!KBD_IS_BUSY(kbd))
/* the device is not open, discard the input */
continue;
/* store the byte as is for K_RAW and K_CODE modes */
if (mode != K_XLATE) {
putc(KEYCHAR(c), &sc->gkb_q);
continue;
}
/* K_XLATE */
if (c & RELKEY) /* key release is ignored */
continue;
/* process special keys; most of them are just ignored... */
if (c & SPCLKEY) {
switch (KEYCHAR(c)) {
/* locking keys */
case NLK: case CLK: case SLK: case ALK:
/* shift keys */
case LSH: case RSH: case LCTR: case RCTR:
case LALT: case RALT: case ASH: case META:
/* other special keys */
case NOP: case SPSC: case RBT: case SUSP:
case STBY: case DBG: case NEXT:
/* ignore them... */
continue;
case BTAB: /* a backtab: ESC [ Z */
putc(0x1b, &sc->gkb_q);
putc('[', &sc->gkb_q);
putc('Z', &sc->gkb_q);
continue;
}
}
/* normal chars, normal chars with the META, function keys */
switch (KEYFLAGS(c)) {
case 0: /* a normal char */
putc(KEYCHAR(c), &sc->gkb_q);
break;
case MKEY: /* the META flag: prepend ESC */
putc(0x1b, &sc->gkb_q);
putc(KEYCHAR(c), &sc->gkb_q);
break;
case FKEY | SPCLKEY: /* a function key, return string */
cp = (*kbdsw[kbd->kb_index]->get_fkeystr)(kbd,
KEYCHAR(c), &len);
if (cp != NULL) {
while (len-- > 0)
putc(*cp++, &sc->gkb_q);
}
break;
}
}
/* wake up sleeping/polling processes */
if (sc->gkb_q.c_cc > 0) {
if (sc->gkb_flags & KB_ASLEEP) {
sc->gkb_flags &= ~KB_ASLEEP;
wakeup((caddr_t)sc);
}
selwakeup(&sc->gkb_rsel);
}
return 0;
}
#endif /* KBD_INSTALL_CDEV */
/*
* Generic low-level keyboard functions
* The low-level functions in the keyboard subdriver may use these
* functions.
*/
int
genkbd_commonioctl(keyboard_t *kbd, u_long cmd, caddr_t arg)
{
keyarg_t *keyp;
fkeyarg_t *fkeyp;
int s;
int i;
s = spltty();
switch (cmd) {
case KDGKBINFO: /* get keyboard information */
((keyboard_info_t *)arg)->kb_index = kbd->kb_index;
i = imin(strlen(kbd->kb_name) + 1,
sizeof(((keyboard_info_t *)arg)->kb_name));
bcopy(kbd->kb_name, ((keyboard_info_t *)arg)->kb_name, i);
((keyboard_info_t *)arg)->kb_unit = kbd->kb_unit;
((keyboard_info_t *)arg)->kb_type = kbd->kb_type;
((keyboard_info_t *)arg)->kb_config = kbd->kb_config;
((keyboard_info_t *)arg)->kb_flags = kbd->kb_flags;
break;
case KDGKBTYPE: /* get keyboard type */
*(int *)arg = kbd->kb_type;
break;
case GIO_KEYMAP: /* get keyboard translation table */
bcopy(kbd->kb_keymap, arg, sizeof(*kbd->kb_keymap));
break;
case PIO_KEYMAP: /* set keyboard translation table */
#ifndef KBD_DISABLE_KEYMAP_LOAD
bzero(kbd->kb_accentmap, sizeof(*kbd->kb_accentmap));
bcopy(arg, kbd->kb_keymap, sizeof(*kbd->kb_keymap));
break;
#else
splx(s);
return ENODEV;
#endif
case GIO_KEYMAPENT: /* get keyboard translation table entry */
keyp = (keyarg_t *)arg;
if (keyp->keynum >= sizeof(kbd->kb_keymap->key)
/sizeof(kbd->kb_keymap->key[0])) {
splx(s);
return EINVAL;
}
bcopy(&kbd->kb_keymap->key[keyp->keynum], &keyp->key,
sizeof(keyp->key));
break;
case PIO_KEYMAPENT: /* set keyboard translation table entry */
#ifndef KBD_DISABLE_KEYMAP_LOAD
keyp = (keyarg_t *)arg;
if (keyp->keynum >= sizeof(kbd->kb_keymap->key)
/sizeof(kbd->kb_keymap->key[0])) {
splx(s);
return EINVAL;
}
bcopy(&keyp->key, &kbd->kb_keymap->key[keyp->keynum],
sizeof(keyp->key));
break;
#else
splx(s);
return ENODEV;
#endif
case GIO_DEADKEYMAP: /* get accent key translation table */
bcopy(kbd->kb_accentmap, arg, sizeof(*kbd->kb_accentmap));
break;
case PIO_DEADKEYMAP: /* set accent key translation table */
#ifndef KBD_DISABLE_KEYMAP_LOAD
bcopy(arg, kbd->kb_accentmap, sizeof(*kbd->kb_accentmap));
break;
#else
splx(s);
return ENODEV;
#endif
case GETFKEY: /* get functionkey string */
fkeyp = (fkeyarg_t *)arg;
if (fkeyp->keynum >= kbd->kb_fkeytab_size) {
splx(s);
return EINVAL;
}
bcopy(kbd->kb_fkeytab[fkeyp->keynum].str, fkeyp->keydef,
kbd->kb_fkeytab[fkeyp->keynum].len);
fkeyp->flen = kbd->kb_fkeytab[fkeyp->keynum].len;
break;
case SETFKEY: /* set functionkey string */
#ifndef KBD_DISABLE_KEYMAP_LOAD
fkeyp = (fkeyarg_t *)arg;
if (fkeyp->keynum >= kbd->kb_fkeytab_size) {
splx(s);
return EINVAL;
}
kbd->kb_fkeytab[fkeyp->keynum].len = imin(fkeyp->flen, MAXFK);
bcopy(fkeyp->keydef, kbd->kb_fkeytab[fkeyp->keynum].str,
kbd->kb_fkeytab[fkeyp->keynum].len);
break;
#else
splx(s);
return ENODEV;
#endif
default:
splx(s);
return ENOIOCTL;
}
splx(s);
return 0;
}
/* get a pointer to the string associated with the given function key */
u_char
*genkbd_get_fkeystr(keyboard_t *kbd, int fkey, size_t *len)
{
if (kbd == NULL)
return NULL;
fkey -= F_FN;
if (fkey > kbd->kb_fkeytab_size)
return NULL;
*len = kbd->kb_fkeytab[fkey].len;
return kbd->kb_fkeytab[fkey].str;
}
/* diagnostic dump */
static char
*get_kbd_type_name(int type)
{
static struct {
int type;
char *name;
} name_table[] = {
{ KB_84, "AT 84" },
{ KB_101, "AT 101/102" },
{ KB_OTHER, "generic" },
};
int i;
for (i = 0; i < sizeof(name_table)/sizeof(name_table[0]); ++i) {
if (type == name_table[i].type)
return name_table[i].name;
}
return "unknown";
}
void
genkbd_diag(keyboard_t *kbd, int level)
{
if (level > 0) {
printf("kbd%d: %s%d, %s (%d), config:0x%x, flags:0x%x",
kbd->kb_index, kbd->kb_name, kbd->kb_unit,
get_kbd_type_name(kbd->kb_type), kbd->kb_type,
kbd->kb_config, kbd->kb_flags);
if (kbd->kb_io_base > 0)
printf(", port:0x%x-0x%x", kbd->kb_io_base,
kbd->kb_io_base + kbd->kb_io_size - 1);
printf("\n");
}
}
#define set_lockkey_state(k, s, l) \
if (!((s) & l ## DOWN)) { \
int i; \
(s) |= l ## DOWN; \
(s) ^= l ## ED; \
i = (s) & LOCK_MASK; \
(*kbdsw[(k)->kb_index]->ioctl)((k), KDSETLED, (caddr_t)&i); \
}
static u_int
save_accent_key(keyboard_t *kbd, u_int key, int *accents)
{
int i;
/* make an index into the accent map */
i = key - F_ACC + 1;
if ((i > kbd->kb_accentmap->n_accs)
|| (kbd->kb_accentmap->acc[i - 1].accchar == 0)) {
/* the index is out of range or pointing to an empty entry */
*accents = 0;
return ERRKEY;
}
/*
* If the same accent key has been hit twice, produce the accent char
* itself.
*/
if (i == *accents) {
key = kbd->kb_accentmap->acc[i - 1].accchar;
*accents = 0;
return key;
}
/* remember the index and wait for the next key */
*accents = i;
return NOKEY;
}
static u_int
make_accent_char(keyboard_t *kbd, u_int ch, int *accents)
{
struct acc_t *acc;
int i;
acc = &kbd->kb_accentmap->acc[*accents - 1];
*accents = 0;
/*
* If the accent key is followed by the space key,
* produce the accent char itself.
*/
if (ch == ' ')
return acc->accchar;
/* scan the accent map */
for (i = 0; i < NUM_ACCENTCHARS; ++i) {
if (acc->map[i][0] == 0) /* end of table */
break;
if (acc->map[i][0] == ch)
return acc->map[i][1];
}
/* this char cannot be accented... */
return ERRKEY;
}
int
genkbd_keyaction(keyboard_t *kbd, int keycode, int up, int *shiftstate,
int *accents)
{
struct keyent_t *key;
int state = *shiftstate;
int action;
int f;
int i;
f = state & (AGRS | ALKED);
if ((f == AGRS1) || (f == AGRS2) || (f == ALKED))
keycode += ALTGR_OFFSET;
key = &kbd->kb_keymap->key[keycode];
i = ((state & SHIFTS) ? 1 : 0)
| ((state & CTLS) ? 2 : 0)
| ((state & ALTS) ? 4 : 0);
if (((key->flgs & FLAG_LOCK_C) && (state & CLKED))
|| ((key->flgs & FLAG_LOCK_N) && (state & NLKED)) )
i ^= 1;
action = key->map[i];
if (up) { /* break: key released */
if (key->spcl & (0x80 >> i)) {
/* special keys */
switch (action) {
case LSH:
state &= ~SHIFTS1;
break;
case RSH:
state &= ~SHIFTS2;
break;
case LCTR:
state &= ~CTLS1;
break;
case RCTR:
state &= ~CTLS2;
break;
case LALT:
state &= ~ALTS1;
break;
case RALT:
state &= ~ALTS2;
break;
case ASH:
state &= ~AGRS1;
break;
case META:
state &= ~METAS1;
break;
case NLK:
state &= ~NLKDOWN;
break;
case CLK:
#ifndef PC98
state &= ~CLKDOWN;
#else
state &= ~CLKED;
i = state & LOCK_MASK;
(*kbdsw[kbd->kb_index]->ioctl)(kbd, KDSETLED,
(caddr_t)&i);
#endif
break;
case SLK:
state &= ~SLKDOWN;
break;
case ALK:
state &= ~ALKDOWN;
break;
}
*shiftstate = state;
return (SPCLKEY | RELKEY | action);
}
/* release events of regular keys are not reported */
return NOKEY;
} else { /* make: key pressed */
if (key->spcl & (0x80 >> i)) {
/* special keys */
switch (action) {
/* LOCKING KEYS */
case NLK:
set_lockkey_state(kbd, state, NLK);
break;
case CLK:
#ifndef PC98
set_lockkey_state(kbd, state, CLK);
#else
state |= CLKED;
i = state & LOCK_MASK;
(*kbdsw[kbd->kb_index]->ioctl)(kbd, KDSETLED,
(caddr_t)&i);
#endif
break;
case SLK:
set_lockkey_state(kbd, state, SLK);
break;
case ALK:
set_lockkey_state(kbd, state, ALK);
break;
/* NON-LOCKING KEYS */
case SPSC: case RBT: case SUSP: case STBY:
case DBG: case NEXT:
*accents = 0;
break;
case BTAB:
*accents = 0;
action |= BKEY;
break;
case LSH:
state |= SHIFTS1;
break;
case RSH:
state |= SHIFTS2;
break;
case LCTR:
state |= CTLS1;
break;
case RCTR:
state |= CTLS2;
break;
case LALT:
state |= ALTS1;
break;
case RALT:
state |= ALTS2;
break;
case ASH:
state |= AGRS1;
break;
case META:
state |= METAS1;
break;
default:
/* is this an accent (dead) key? */
if (action >= F_ACC && action <= L_ACC) {
action = save_accent_key(kbd, action,
accents);
switch (action) {
case NOKEY:
case ERRKEY:
return action;
default:
if (state & METAS)
return (action | MKEY);
else
return action;
}
/* NOT REACHED */
}
/* other special keys */
if (*accents > 0) {
*accents = 0;
return ERRKEY;
}
if (action >= F_FN && action <= L_FN)
action |= FKEY;
/* XXX: return fkey string for the FKEY? */
}
*shiftstate = state;
return (SPCLKEY | action);
} else {
/* regular keys */
if (*accents > 0) {
/* make an accented char */
action = make_accent_char(kbd, action, accents);
if (action == ERRKEY)
return action;
}
if (state & METAS)
action |= MKEY;
return action;
}
}
/* NOT REACHED */
}
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