NetBSD/sys/arch/macppc/dev/ofcons.c

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/* $NetBSD: ofcons.c,v 1.2 1998/07/28 23:43:33 thorpej Exp $ */
/*
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
* Copyright (C) 1995, 1996 TooLs GmbH.
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by TooLs GmbH.
* 4. The name of TooLs GmbH may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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/param.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <sys/tty.h>
#include <dev/cons.h>
#include <dev/ofw/openfirm.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#define KEYBOARD_ARRAY
#include <machine/keyboard.h>
#include <machine/adbsys.h>
#include <machine/autoconf.h>
#include "adb.h"
struct ofcons_softc {
struct device of_dev;
struct tty *of_tty;
};
#define OFBURSTLEN 128 /* max number of bytes to write in one chunk */
static int stdin, stdout;
static int ofcmatch __P((struct device *, struct cfdata *, void *));
static void ofcattach __P((struct device *, struct device *, void *));
struct cfattach macofcons_ca = {
sizeof(struct ofcons_softc), ofcmatch, ofcattach
};
extern struct cfdriver macofcons_cd;
/* For polled ADB mode */
static int polledkey;
extern int adb_polling;
static void ofcstart __P((struct tty *));
static int ofcparam __P((struct tty *, struct termios *));
static int ofcons_probe __P((void));
static int
ofcmatch(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct pci_attach_args *pa = aux;
static int attached = 0;
if (attached)
return 0;
if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY)
return 0;
if (!ofcons_probe())
return 0;
attached = 1;
return 1;
}
static void
ofcattach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
printf("\n");
}
int
ofcopen(dev, flag, mode, p)
dev_t dev;
int flag, mode;
struct proc *p;
{
struct ofcons_softc *sc;
int unit = minor(dev);
struct tty *tp;
if (unit >= macofcons_cd.cd_ndevs)
return ENXIO;
sc = macofcons_cd.cd_devs[unit];
if (!sc)
return ENXIO;
if (!(tp = sc->of_tty))
sc->of_tty = tp = ttymalloc();
tp->t_oproc = ofcstart;
tp->t_param = ofcparam;
tp->t_dev = dev;
if (!(tp->t_state & TS_ISOPEN)) {
ttychars(tp);
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_cflag = TTYDEF_CFLAG;
tp->t_lflag = TTYDEF_LFLAG;
tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
ofcparam(tp, &tp->t_termios);
ttsetwater(tp);
} else if ((tp->t_state&TS_XCLUDE) && suser(p->p_ucred, &p->p_acflag))
return EBUSY;
tp->t_state |= TS_CARR_ON;
return (*linesw[tp->t_line].l_open)(dev, tp);
}
int
ofcclose(dev, flag, mode, p)
dev_t dev;
int flag, mode;
struct proc *p;
{
struct ofcons_softc *sc = macofcons_cd.cd_devs[minor(dev)];
struct tty *tp = sc->of_tty;
(*linesw[tp->t_line].l_close)(tp, flag);
ttyclose(tp);
return 0;
}
int
ofcread(dev, uio, flag)
dev_t dev;
struct uio *uio;
int flag;
{
struct ofcons_softc *sc = macofcons_cd.cd_devs[minor(dev)];
struct tty *tp = sc->of_tty;
return (*linesw[tp->t_line].l_read)(tp, uio, flag);
}
int
ofcwrite(dev, uio, flag)
dev_t dev;
struct uio *uio;
int flag;
{
struct ofcons_softc *sc = macofcons_cd.cd_devs[minor(dev)];
struct tty *tp = sc->of_tty;
return (*linesw[tp->t_line].l_write)(tp, uio, flag);
}
int
ofcioctl(dev, cmd, data, flag, p)
dev_t dev;
u_long cmd;
caddr_t data;
int flag;
struct proc *p;
{
struct ofcons_softc *sc = macofcons_cd.cd_devs[minor(dev)];
struct tty *tp = sc->of_tty;
int error;
if ((error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, p)) >= 0)
return error;
if ((error = ttioctl(tp, cmd, data, flag, p)) >= 0)
return error;
return ENOTTY;
}
struct tty *
ofctty(dev)
dev_t dev;
{
struct ofcons_softc *sc = macofcons_cd.cd_devs[minor(dev)];
return sc->of_tty;
}
void
ofcstop(tp, flag)
struct tty *tp;
int flag;
{
}
static void
ofcstart(tp)
struct tty *tp;
{
struct clist *cl;
int s, len;
u_char buf[OFBURSTLEN];
s = spltty();
if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP)) {
splx(s);
return;
}
tp->t_state |= TS_BUSY;
splx(s);
cl = &tp->t_outq;
len = q_to_b(cl, buf, OFBURSTLEN);
OF_write(stdout, buf, len);
s = spltty();
tp->t_state &= ~TS_BUSY;
if (cl->c_cc) {
tp->t_state |= TS_TIMEOUT;
timeout(ttrstrt, (void *)tp, 1);
}
if (cl->c_cc <= tp->t_lowat) {
if (tp->t_state & TS_ASLEEP) {
tp->t_state &= ~TS_ASLEEP;
wakeup(cl);
}
selwakeup(&tp->t_wsel);
}
splx(s);
}
static int
ofcparam(tp, t)
struct tty *tp;
struct termios *t;
{
tp->t_ispeed = t->c_ispeed;
tp->t_ospeed = t->c_ospeed;
tp->t_cflag = t->c_cflag;
return 0;
}
static int
ofcons_probe()
{
int chosen;
if (stdout)
return 1;
if ((chosen = OF_finddevice("/chosen")) == -1)
return 0;
if (OF_getprop(chosen, "stdin", &stdin, sizeof(stdin)) !=
sizeof(stdin) ||
OF_getprop(chosen, "stdout", &stdout, sizeof(stdout)) !=
sizeof(stdout))
return 0;
return 1;
}
/*
* Console support functions
*/
void
ofccnprobe(cd)
struct consdev *cd;
{
int maj;
if (!ofcons_probe())
return;
for (maj = 0; maj < nchrdev; maj++) {
if (cdevsw[maj].d_open == ofcopen) {
cd->cn_dev = makedev(maj, 0);
cd->cn_pri = CN_INTERNAL;
break;
}
}
}
void
ofccninit(cd)
struct consdev *cd;
{
}
int
ofccngetc(dev)
dev_t dev;
{
#if NADB > 0
int intbits, s;
s = splhigh();
polledkey = -1;
adb_polling = 1;
while (polledkey == -1)
adb_intr_cuda();
adb_polling = 0;
splx(s);
return polledkey;
#else
unsigned char ch = '\0';
int l;
while ((l = OF_read(stdin, &ch, 1)) != 1)
if (l != -2 && l != 0)
return -1;
return ch;
#endif
}
void
ofccnputc(dev, c)
dev_t dev;
int c;
{
char ch = c;
OF_write(stdout, &ch, 1);
}
void
ofccnpollc(dev, on)
dev_t dev;
int on;
{
}
struct consdev consdev_ofcons = {
ofccnprobe,
ofccninit,
ofccngetc,
ofccnputc,
ofccnpollc,
};
struct consdev *cn_tab = &consdev_ofcons;
/* For capslock key functionality */
#define isealpha(ch) \
(((ch)>='A'&&(ch)<='Z')||((ch)>='a'&&(ch)<='z')||((ch)>=0xC0&&(ch)<=0xFF))
int
kbd_intr(event)
adb_event_t *event;
{
static int shift = 0, control = 0, capslock = 0;
int key, press, val, state;
char str[10], *s;
struct ofcons_softc *sc = macofcons_cd.cd_devs[0];
struct tty *ite_tty = sc->of_tty;
key = event->u.k.key;
press = ADBK_PRESS(key);
val = ADBK_KEYVAL(key);
if (val == ADBK_SHIFT)
shift = press;
else if (val == ADBK_CAPSLOCK)
capslock = !capslock;
else if (val == ADBK_CONTROL)
control = press;
else if (press) {
switch (val) {
case ADBK_UP:
str[0] = '\e';
str[1] = 'O';
str[2] = 'A';
str[3] = '\0';
break;
case ADBK_DOWN:
str[0] = '\e';
str[1] = 'O';
str[2] = 'B';
str[3] = '\0';
break;
case ADBK_RIGHT:
str[0] = '\e';
str[1] = 'O';
str[2] = 'C';
str[3] = '\0';
break;
case ADBK_LEFT:
str[0] = '\e';
str[1] = 'O';
str[2] = 'D';
str[3] = '\0';
break;
default:
state = 0;
if (capslock && isealpha(keyboard[val][1]))
state = 1;
if (shift)
state = 1;
if (control)
state = 2;
str[0] = keyboard[val][state];
str[1] = '\0';
break;
}
if (adb_polling)
polledkey = str[0];
else
for (s = str; *s; s++)
(*linesw[ite_tty->t_line].l_rint)(*s, ite_tty);
}
return 0;
}