NetBSD/sys/arch/epoc32/dev/epockbd.c

235 lines
5.4 KiB
C

/* $NetBSD: epockbd.c,v 1.2 2013/06/22 13:53:30 kiyohara Exp $ */
/*
* Copyright (c) 2013 KIYOHARA Takashi
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: epockbd.c,v 1.2 2013/06/22 13:53:30 kiyohara Exp $");
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/callout.h>
#include <sys/device.h>
#include <sys/errno.h>
#include <sys/kernel.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wskbdvar.h>
#include <dev/wscons/wsksymdef.h>
#include <dev/wscons/wsksymvar.h>
#include <epoc32/dev/epockbdvar.h>
#include <epoc32/dev/epockbdmap.h>
#define EPOCKBD_COLUMN0 8
#define EPOCKBD_SCAN_READ(sc) \
bus_space_read_1((sc)->sc_scant, (sc)->sc_scanh, 0)
#define EPOCKBD_SCAN_WRITE(sc, cmd) \
bus_space_write_1((sc)->sc_scant, (sc)->sc_scanh, 0, (cmd))
#define EPOCKBD_DATA_READ(sc) \
bus_space_read_1((sc)->sc_datat, (sc)->sc_datah, 0)
#define EPOC2WS_KBD_DATA(r, c) (((c) << 3) + (31 - __builtin_clz(r)) + 1)
static int epockbd_enable(void *, int);
static void epockbd_set_leds(void *, int);
static int epockbd_ioctl(void *, u_long, void *, int, struct lwp *);
static void epockbd_poll(void *);
static void epockbd_cngetc(void *, u_int *, int *);
static void epockbd_cnpollc(void *, int);
static struct wskbd_consops epockbd_consops = {
epockbd_cngetc,
epockbd_cnpollc,
NULL
};
static struct wskbd_accessops epockbd_accessops = {
epockbd_enable,
epockbd_set_leds,
epockbd_ioctl,
};
static struct wskbd_mapdata epockbd_mapdata = {
epockbd_keydesctab,
KB_UK,
};
static int is_console;
void
epockbd_attach(struct epockbd_softc *sc)
{
struct wskbddev_attach_args aa;
aprint_normal("\n");
aprint_naive("\n");
if (is_console)
wskbd_cnattach(&epockbd_consops, sc, &epockbd_mapdata);
callout_init(&sc->sc_c, 0);
callout_reset(&sc->sc_c, hz, epockbd_poll, sc);
sc->sc_flags |= EPOCKBD_FLAG_ENABLE;
aa.console = is_console;
aa.keymap = &epockbd_mapdata;
aa.accessops = &epockbd_accessops;
aa.accesscookie = sc;
sc->sc_wskbddev = config_found(sc->sc_dev, &aa, wskbddevprint);
}
/*
* wskbd(9) functions
*/
static int
epockbd_enable(void *v, int on)
{
struct epockbd_softc *sc = v;
if (on) {
sc->sc_flags |= EPOCKBD_FLAG_ENABLE;
callout_schedule(&sc->sc_c, hz / 20);
} else {
sc->sc_flags &= ~EPOCKBD_FLAG_ENABLE;
callout_stop(&sc->sc_c);
}
return 0;
}
static void
epockbd_set_leds(void *v, int on)
{
/* Nothing */
}
static int
epockbd_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l)
{
switch (cmd) {
case WSKBDIO_GTYPE:
*(int *)data = WSKBD_TYPE_EPOC;
return 0;
case WSKBDIO_SETLEDS:
return 0;
case WSKBDIO_GETLEDS:
*(int *)data = 0;
return 0;
#ifdef WSDISPLAY_COMPAT_RAWKBD
case WSKBDIO_SETMODE:
*(int *)data == WSKBD_RAW;
sc->sc_flags |= EPOCKBD_FLAG_RAW;
/* Not yet...: return 0; */
#endif
}
return EPASSTHROUGH;
}
static void
epockbd_poll(void *v)
{
struct epockbd_softc *sc = v;
u_int type;
int data;
epockbd_cngetc(v, &type, &data);
if (data != 0)
wskbd_input(sc->sc_wskbddev, type, data);
callout_schedule(&sc->sc_c, hz / 20);
}
void
epockbd_cnattach(void)
{
is_console = 1;
}
static void
epockbd_cngetc(void *conscookie, u_int *type, int *data)
{
struct epockbd_softc *sc = conscookie;
uint8_t cmd, key, mask;
int column, row;
#if 1
/*
* For some machines which return a strange response, it calculates
* using this variable.
*/
int pc = 0, pr = 0;
#endif
*type = 0;
*data = 0;
mask = (1 << sc->sc_kbd_nrow) - 1;
for (column = 0; column < sc->sc_kbd_ncolumn; column++) {
delay(16);
cmd = EPOCKBD_SCAN_READ(sc);
cmd &= ~0xf;
cmd |= (EPOCKBD_COLUMN0 + column);
EPOCKBD_SCAN_WRITE(sc, cmd);
delay(16);
key = EPOCKBD_DATA_READ(sc) & mask;
if (sc->sc_state[column] != key) {
row = sc->sc_state[column] ^ key;
sc->sc_state[column] = key;
#if 1
if (*data == 0 ||
(row == pr && pc == 0 &&
column == sc->sc_kbd_ncolumn - 1))
#else
if (*data == 0)
#endif
{
if (key & row)
*type = WSCONS_EVENT_KEY_DOWN;
else
*type = WSCONS_EVENT_KEY_UP;
*data = EPOC2WS_KBD_DATA(row, column);
#if 1
pc = column;
pr = row;
#endif
}
}
}
}
/* ARGSUSED */
static void
epockbd_cnpollc(void *conckookie, int on)
{
/* Nothing */
}