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NetBSD/sys/arch/arc/dev/pccons.c

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/* $NetBSD: pccons.c,v 1.53 2007/11/19 18:51:37 ad Exp $ */
/* $OpenBSD: pccons.c,v 1.22 1999/01/30 22:39:37 imp Exp $ */
/* NetBSD: pccons.c,v 1.89 1995/05/04 19:35:20 cgd Exp */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz and Don Ahn.
*
* 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. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* @(#)pccons.c 5.11 (Berkeley) 5/21/91
*/
/*-
* Copyright (c) 1993, 1994, 1995 Charles M. Hannum. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz and Don Ahn.
*
* Copyright (c) 1994 Charles M. Hannum.
* Copyright (c) 1992, 1993 Erik Forsberg.
*
* 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 the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*
* @(#)pccons.c 5.11 (Berkeley) 5/21/91
*/
/*
* code to work keyboard & display for PC-style console
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: pccons.c,v 1.53 2007/11/19 18:51:37 ad Exp $");
#include "opt_ddb.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/tty.h>
#include <sys/callout.h>
#include <sys/poll.h>
#include <sys/conf.h>
#include <sys/vnode.h>
#include <sys/kernel.h>
#include <sys/kcore.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <sys/kauth.h>
#include <machine/bus.h>
#include <dev/ic/pcdisplay.h>
#include <machine/pccons.h>
#include <machine/kbdreg.h>
#include <dev/cons.h>
#include <dev/isa/isavar.h>
#include <arc/arc/arcbios.h>
#include <arc/dev/pcconsvar.h>
#include "ioconf.h"
#define XFREE86_BUG_COMPAT
#ifndef BEEP_FREQ
#define BEEP_FREQ 1600
#endif
#ifndef BEEP_TIME
#define BEEP_TIME (hz/5)
#endif
#define PCBURST 128
static u_short *Crtat; /* pointer to backing store */
static u_short *crtat; /* pointer to current char */
static u_char async, kernel, polling; /* Really, you don't want to know. */
static u_char lock_state = 0x00, /* all off */
old_lock_state = 0xff,
typematic_rate = 0xff, /* don't update until set by user */
old_typematic_rate = 0xff;
static u_short cursor_shape = 0xffff, /* don't update until set by user */
old_cursor_shape = 0xffff;
static pccons_keymap_t scan_codes[KB_NUM_KEYS];/* keyboard translation table */
int pc_xmode = 0;
/*
* Keyboard output queue.
*/
int kb_oq_put = 0;
int kb_oq_get = 0;
u_char kb_oq[8];
#define PCUNIT(x) (minor(x))
static struct video_state {
int cx, cy; /* escape parameters */
int row, col; /* current cursor position */
int nrow, ncol, nchr; /* current screen geometry */
int offset; /* Saved cursor pos */
u_char state; /* parser state */
#define VSS_ESCAPE 1
#define VSS_EBRACE 2
#define VSS_EPARAM 3
char so; /* in standout mode? */
char color; /* color or mono display */
char at; /* normal attributes */
char so_at; /* standout attributes */
} vs;
static callout_t async_update_ch;
void pc_xmode_on(void);
void pc_xmode_off(void);
static u_char kbc_get8042cmd(void);
int kbd_cmd(u_char, u_char);
static inline int kbd_wait_output(void);
static inline int kbd_wait_input(void);
void kbd_flush_input(void);
void set_cursor_shape(void);
void get_cursor_shape(void);
void async_update(void);
void do_async_update(u_char);
void pccnputc(dev_t, int c);
int pccngetc(dev_t);
void pccnpollc(dev_t, int);
dev_type_open(pcopen);
dev_type_close(pcclose);
dev_type_read(pcread);
dev_type_write(pcwrite);
dev_type_ioctl(pcioctl);
dev_type_tty(pctty);
dev_type_poll(pcpoll);
dev_type_mmap(pcmmap);
const struct cdevsw pc_cdevsw = {
pcopen, pcclose, pcread, pcwrite, pcioctl,
nostop, pctty, pcpoll, pcmmap, ttykqfilter, D_TTY
};
#define CHR 2
char *sget(void);
void sput(const u_char *, int);
void pcstart(struct tty *);
int pcparam(struct tty *, struct termios *);
static inline void wcopy(void *, void *, u_int);
void pc_context_init(bus_space_tag_t, bus_space_tag_t, bus_space_tag_t,
struct pccons_config *);
extern void fillw(int, uint16_t *, int);
#define KBD_DELAY \
DELAY(10);
#define crtc_read_1(reg) \
bus_space_read_1(pccons_console_context.pc_crt_iot, \
pccons_console_context.pc_6845_ioh, reg)
#define crtc_write_1(reg, data) \
bus_space_write_1(pccons_console_context.pc_crt_iot, \
pccons_console_context.pc_6845_ioh, reg, data)
struct pccons_context pccons_console_context;
void
kbd_context_init(bus_space_tag_t kbd_iot, struct pccons_config *config)
{
struct pccons_kbd_context *pkc = &pccons_console_context.pc_pkc;
if (pkc->pkc_initialized)
return;
pkc->pkc_initialized = 1;
pkc->pkc_iot = kbd_iot;
bus_space_map(kbd_iot, config->pc_kbd_cmdp, 1, 0,
&pkc->pkc_cmd_ioh);
bus_space_map(kbd_iot, config->pc_kbd_datap, 1, 0,
&pkc->pkc_data_ioh);
}
void
pc_context_init(bus_space_tag_t crt_iot, bus_space_tag_t crt_memt,
bus_space_tag_t kbd_iot, struct pccons_config *config)
{
struct pccons_context *pc = &pccons_console_context;
if (pc->pc_initialized)
return;
pc->pc_initialized = 1;
kbd_context_init(kbd_iot, config);
pc->pc_crt_iot = crt_iot;
pc->pc_crt_memt = crt_memt;
bus_space_map(crt_iot, config->pc_mono_iobase, 2, 0,
&pc->pc_mono_ioh);
bus_space_map(crt_memt, config->pc_mono_memaddr, 0x20000, 0,
&pc->pc_mono_memh);
bus_space_map(crt_iot, config->pc_cga_iobase, 2, 0,
&pc->pc_cga_ioh);
bus_space_map(crt_memt, config->pc_cga_memaddr, 0x20000, 0,
&pc->pc_cga_memh);
/*
* pc->pc_6845_ioh and pc->pc_crt_memh will be initialized later,
* when `Crtat' is initialized.
*/
pc->pc_config = config;
(*config->pc_init)();
}
/*
* bcopy variant that only moves word-aligned 16-bit entities,
* for stupid VGA cards. cnt is required to be an even vale.
*/
static inline void
wcopy(void *src, void *tgt, u_int cnt)
{
uint16_t *from = src;
uint16_t *to = tgt;
cnt >>= 1;
if (to < from || to >= from + cnt)
while (cnt--)
*to++ = *from++;
else {
to += cnt;
from += cnt;
while (cnt--)
*--to = *--from;
}
}
static inline int
kbd_wait_output(void)
{
u_int i;
for (i = 100000; i; i--)
if ((kbd_cmd_read_1() & KBS_IBF) == 0) {
KBD_DELAY;
return 1;
}
return 0;
}
static inline int
kbd_wait_input(void)
{
u_int i;
for (i = 100000; i; i--)
if ((kbd_cmd_read_1() & KBS_DIB) != 0) {
KBD_DELAY;
return 1;
}
return 0;
}
void
kbd_flush_input(void)
{
uint8_t c;
while ((c = kbd_cmd_read_1()) & 0x03)
if ((c & KBS_DIB) == KBS_DIB) {
/* XXX - delay is needed to prevent some keyboards from
wedging when the system boots */
delay(6);
(void)kbd_data_read_1();
}
}
#if 1
/*
* Get the current command byte.
*/
static u_char
kbc_get8042cmd(void)
{
if (!kbd_wait_output())
return -1;
kbd_cmd_write_1(K_RDCMDBYTE);
if (!kbd_wait_input())
return -1;
return kbd_data_read_1();
}
#endif
/*
* Pass command byte to keyboard controller (8042).
*/
int
kbc_put8042cmd(val)
uint8_t val;
{
if (!kbd_wait_output())
return 0;
kbd_cmd_write_1(K_LDCMDBYTE);
if (!kbd_wait_output())
return 0;
kbd_data_write_1(val);
return 1;
}
/*
* Pass command to keyboard itself
*/
int
kbd_cmd(uint8_t val, uint8_t polled)
{
u_int retries = 3;
u_int i;
if (!polled) {
i = spltty();
if (kb_oq_get == kb_oq_put) {
kbd_data_write_1(val);
}
kb_oq[kb_oq_put] = val;
kb_oq_put = (kb_oq_put + 1) & 7;
splx(i);
return 1;
}
do {
if (!kbd_wait_output())
return 0;
kbd_data_write_1(val);
for (i = 100000; i; i--) {
if (kbd_cmd_read_1() & KBS_DIB) {
uint8_t c;
KBD_DELAY;
c = kbd_data_read_1();
if (c == KBR_ACK || c == KBR_ECHO) {
return 1;
}
if (c == KBR_RESEND) {
break;
}
#ifdef DIAGNOSTIC
printf("kbd_cmd: input char %x lost\n", c);
#endif
}
}
} while (--retries);
return 0;
}
void
set_cursor_shape(void)
{
crtc_write_1(0, 10);
crtc_write_1(1, cursor_shape >> 8);
crtc_write_1(0, 11);
crtc_write_1(1, cursor_shape);
old_cursor_shape = cursor_shape;
}
void
get_cursor_shape(void)
{
crtc_write_1(0, 10);
cursor_shape = crtc_read_1(1) << 8;
crtc_write_1(0, 11);
cursor_shape |= crtc_read_1(1);
/*
* real 6845's, as found on, MDA, Hercules or CGA cards, do
* not support reading the cursor shape registers. the 6845
* tri-states it's data bus. This is _normally_ read by the
* CPU as either 0x00 or 0xff.. in which case we just use
* a line cursor.
*/
if (cursor_shape == 0x0000 || cursor_shape == 0xffff)
cursor_shape = 0x0b10;
else
cursor_shape &= 0x1f1f;
}
void
do_async_update(uint8_t poll)
{
int pos;
static int old_pos = -1;
async = 0;
if (lock_state != old_lock_state) {
old_lock_state = lock_state;
if (!kbd_cmd(KBC_MODEIND, poll) ||
!kbd_cmd(lock_state, poll)) {
printf("pc: timeout updating leds\n");
(void) kbd_cmd(KBC_ENABLE, poll);
}
}
if (typematic_rate != old_typematic_rate) {
old_typematic_rate = typematic_rate;
if (!kbd_cmd(KBC_TYPEMATIC, poll) ||
!kbd_cmd(typematic_rate, poll)) {
printf("pc: timeout updating typematic rate\n");
(void) kbd_cmd(KBC_ENABLE, poll);
}
}
if (pc_xmode > 0)
return;
pos = crtat - Crtat;
if (pos != old_pos) {
crtc_write_1(0, 14);
crtc_write_1(1, pos >> 8);
crtc_write_1(0, 15);
crtc_write_1(1, pos);
old_pos = pos;
}
if (cursor_shape != old_cursor_shape)
set_cursor_shape();
}
void
async_update(void)
{
if (kernel || polling) {
if (async)
callout_stop(&async_update_ch);
do_async_update(1);
} else {
if (async)
return;
async = 1;
callout_reset(&async_update_ch, 1,
(void(*)(void *))do_async_update, NULL);
}
}
/*
* these are both bad jokes
*/
int
pccons_common_match(bus_space_tag_t crt_iot, bus_space_tag_t crt_memt,
bus_space_tag_t kbd_iot, struct pccons_config *config)
{
int i;
pc_context_init(crt_iot, crt_memt, kbd_iot, config);
/* Enable interrupts and keyboard, etc. */
if (!kbc_put8042cmd(CMDBYTE)) {
printf("pcprobe: command error\n");
return 0;
}
#if 1
/* Flush any garbage. */
kbd_flush_input();
/* Reset the keyboard. */
if (!kbd_cmd(KBC_RESET, 1)) {
printf("pcprobe: reset error %d\n", 1);
goto lose;
}
for (i = 600000; i; i--)
if ((kbd_cmd_read_1() & KBS_DIB) != 0) {
KBD_DELAY;
break;
}
if (i == 0 || kbd_data_read_1() != KBR_RSTDONE) {
printf("pcprobe: reset error %d\n", 2);
goto lose;
}
/*
* Some keyboards seem to leave a second ack byte after the reset.
* This is kind of stupid, but we account for them anyway by just
* flushing the buffer.
*/
kbd_flush_input();
/* Just to be sure. */
if (!kbd_cmd(KBC_ENABLE, 1)) {
printf("pcprobe: reset error %d\n", 3);
goto lose;
}
/*
* Some keyboard/8042 combinations do not seem to work if the keyboard
* is set to table 1; in fact, it would appear that some keyboards just
* ignore the command altogether. So by default, we use the AT scan
* codes and have the 8042 translate them. Unfortunately, this is
* known to not work on some PS/2 machines. We try desparately to deal
* with this by checking the (lack of a) translate bit in the 8042 and
* attempting to set the keyboard to XT mode. If this all fails, well,
* tough luck.
*
* XXX It would perhaps be a better choice to just use AT scan codes
* and not bother with this.
*/
if (kbc_get8042cmd() & KC8_TRANS) {
/* The 8042 is translating for us; use AT codes. */
if (!kbd_cmd(KBC_SETTABLE, 1) || !kbd_cmd(2, 1)) {
printf("pcprobe: reset error %d\n", 4);
goto lose;
}
} else {
/* Stupid 8042; set keyboard to XT codes. */
if (!kbd_cmd(KBC_SETTABLE, 1) || !kbd_cmd(1, 1)) {
printf("pcprobe: reset error %d\n", 5);
goto lose;
}
}
lose:
/*
* Technically, we should probably fail the probe. But we'll be nice
* and allow keyboard-less machines to boot with the console.
*/
#endif
return 1;
}
void pccons_common_attach(struct pc_softc *sc, bus_space_tag_t crt_iot,
bus_space_tag_t crt_memt, bus_space_tag_t kbd_iot,
struct pccons_config *config)
{
printf(": %s\n", vs.color ? "color" : "mono");
callout_init(&async_update_ch, 0);
do_async_update(1);
}
int
pcopen(dev_t dev, int flag, int mode, struct lwp *l)
{
struct pc_softc *sc;
int unit = PCUNIT(dev);
struct tty *tp;
if (unit >= pc_cd.cd_ndevs)
return ENXIO;
sc = pc_cd.cd_devs[unit];
if (sc == 0)
return ENXIO;
if (!sc->sc_tty) {
tp = sc->sc_tty = ttymalloc();
}
else {
tp = sc->sc_tty;
}
tp->t_oproc = pcstart;
tp->t_param = pcparam;
tp->t_dev = dev;
if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
return (EBUSY);
if ((tp->t_state & TS_ISOPEN) == 0) {
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;
pcparam(tp, &tp->t_termios);
ttsetwater(tp);
}
tp->t_state |= TS_CARR_ON;
return (*tp->t_linesw->l_open)(dev, tp);
}
int
pcclose(dev_t dev, int flag, int mode, struct lwp *l)
{
struct pc_softc *sc = pc_cd.cd_devs[PCUNIT(dev)];
struct tty *tp = sc->sc_tty;
(*tp->t_linesw->l_close)(tp, flag);
ttyclose(tp);
#ifdef notyet /* XXX */
ttyfree(tp);
#endif
return 0;
}
int
pcread(dev_t dev, struct uio *uio, int flag)
{
struct pc_softc *sc = pc_cd.cd_devs[PCUNIT(dev)];
struct tty *tp = sc->sc_tty;
return (*tp->t_linesw->l_read)(tp, uio, flag);
}
int
pcwrite(dev_t dev, struct uio *uio, int flag)
{
struct pc_softc *sc = pc_cd.cd_devs[PCUNIT(dev)];
struct tty *tp = sc->sc_tty;
return (*tp->t_linesw->l_write)(tp, uio, flag);
}
int
pcpoll(dev_t dev, int events, struct lwp *l)
{
struct pc_softc *sc = pc_cd.cd_devs[PCUNIT(dev)];
struct tty *tp = sc->sc_tty;
return (*tp->t_linesw->l_poll)(tp, events, l);
}
struct tty *
pctty(dev_t dev)
{
struct pc_softc *sc = pc_cd.cd_devs[PCUNIT(dev)];
struct tty *tp = sc->sc_tty;
return tp;
}
/*
* Got a console receive interrupt -
* the console processor wants to give us a character.
* Catch the character, and see who it goes to.
*/
int
pcintr(void *arg)
{
struct pc_softc *sc = arg;
struct tty *tp = sc->sc_tty;
uint8_t *cp;
if ((kbd_cmd_read_1() & KBS_DIB) == 0)
return 0;
if (polling)
return 1;
do {
cp = sget();
if (!tp || (tp->t_state & TS_ISOPEN) == 0)
return 1;
if (cp)
do
(*tp->t_linesw->l_rint)(*cp++, tp);
while (*cp);
} while (kbd_cmd_read_1() & KBS_DIB);
return 1;
}
int
pcioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l)
{
struct pc_softc *sc = pc_cd.cd_devs[PCUNIT(dev)];
struct tty *tp = sc->sc_tty;
int error;
error = (*tp->t_linesw->l_ioctl)(tp, cmd, data, flag, l);
if (error != EPASSTHROUGH)
return error;
error = ttioctl(tp, cmd, data, flag, l);
if (error != EPASSTHROUGH)
return error;
switch (cmd) {
case CONSOLE_X_MODE_ON:
pc_xmode_on();
return 0;
case CONSOLE_X_MODE_OFF:
pc_xmode_off();
return 0;
case CONSOLE_X_BELL:
/*
* If set, data is a pointer to a length 2 array of
* integers. data[0] is the pitch in Hz and data[1]
* is the duration in msec.
*/
if (data)
sysbeep(((int*)data)[0],
(((int*)data)[1] * hz) / 1000);
else
sysbeep(BEEP_FREQ, BEEP_TIME);
return 0;
case CONSOLE_SET_TYPEMATIC_RATE: {
u_char rate;
if (!data)
return EINVAL;
rate = *((u_char *)data);
/*
* Check that it isn't too big (which would cause it to be
* confused with a command).
*/
if (rate & 0x80)
return EINVAL;
typematic_rate = rate;
async_update();
return 0;
}
case CONSOLE_SET_KEYMAP: {
pccons_keymap_t *map = (pccons_keymap_t *) data;
int i;
if (!data)
return EINVAL;
for (i = 0; i < KB_NUM_KEYS; i++)
if (map[i].unshift[KB_CODE_SIZE-1] ||
map[i].shift[KB_CODE_SIZE-1] ||
map[i].ctl[KB_CODE_SIZE-1] ||
map[i].altgr[KB_CODE_SIZE-1] ||
map[i].shift_altgr[KB_CODE_SIZE-1])
return EINVAL;
bcopy(data, scan_codes, sizeof(pccons_keymap_t[KB_NUM_KEYS]));
return 0;
}
case CONSOLE_GET_KEYMAP:
if (!data)
return EINVAL;
bcopy(scan_codes, data, sizeof(pccons_keymap_t[KB_NUM_KEYS]));
return 0;
default:
return EPASSTHROUGH;
}
#ifdef DIAGNOSTIC
panic("pcioctl: impossible");
#endif
}
void
pcstart(struct tty *tp)
{
int s, len;
u_char buf[PCBURST];
s = spltty();
if (tp->t_state & (TS_TIMEOUT | TS_BUSY | TS_TTSTOP))
goto out;
tp->t_state |= TS_BUSY;
splx(s);
/*
* We need to do this outside spl since it could be fairly
* expensive and we don't want our serial ports to overflow.
*/
len = q_to_b(cl, buf, PCBURST);
sput(buf, len);
s = spltty();
tp->t_state &= ~TS_BUSY;
if (ttypull(tp)) {
tp->t_state |= TS_TIMEOUT;
callout_schedule(&tp->t_rstrt_ch, 1);
}
out:
splx(s);
}
/* ARGSUSED */
void pccons_common_cnattach(bus_space_tag_t crt_iot, bus_space_tag_t crt_memt,
bus_space_tag_t kbd_iot, struct pccons_config *config)
{
int maj;
static struct consdev pccons = {
NULL, NULL, pccngetc, pccnputc, pccnpollc, NULL, NULL,
NULL, NODEV, CN_NORMAL
};
/*
* For now, don't screw with it.
*/
/* crtat = 0; */
pc_context_init(crt_iot, crt_memt, kbd_iot, config);
/* locate the major number */
maj = cdevsw_lookup_major(&pc_cdevsw);
pccons.cn_dev = makedev(maj, 0);
cn_tab = &pccons;
}
/* ARGSUSED */
void
pccnputc(dev_t dev, int c)
{
u_char cc, oldkernel = kernel;
kernel = 1;
if (c == '\n') {
sput("\r\n", 2);
} else {
cc = c;
sput(&cc, 1);
}
kernel = oldkernel;
}
/* ARGSUSED */
int
pccngetc(dev_t dev)
{
char *cp;
if (pc_xmode > 0)
return 0;
do {
/* wait for byte */
while ((kbd_cmd_read_1() & KBS_DIB) == 0);
/* see if it's worthwhile */
cp = sget();
} while (!cp);
if (*cp == '\r')
return '\n';
return *cp;
}
void
pccnpollc(dev_t dev, int on)
{
polling = on;
if (!on) {
int unit;
struct pc_softc *sc;
int s;
/*
* If disabling polling on a device that's been configured,
* make sure there are no bytes left in the FIFO, holding up
* the interrupt line. Otherwise we won't get any further
* interrupts.
*/
unit = PCUNIT(dev);
if (pc_cd.cd_ndevs > unit) {
sc = pc_cd.cd_devs[unit];
if (sc != 0) {
s = spltty();
pcintr(sc);
splx(s);
}
}
}
}
/*
* Set line parameters.
*/
int
pcparam(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;
}
#define wrtchar(c, at) do {\
char *cp0 = (char *)crtat; *cp0++ = (c); *cp0 = (at); crtat++; vs.col++; \
} while (0)
/* translate ANSI color codes to standard pc ones */
static char fgansitopc[] = {
FG_BLACK, FG_RED, FG_GREEN, FG_BROWN, FG_BLUE,
FG_MAGENTA, FG_CYAN, FG_LIGHTGREY
};
static char bgansitopc[] = {
BG_BLACK, BG_RED, BG_GREEN, BG_BROWN, BG_BLUE,
BG_MAGENTA, BG_CYAN, BG_LIGHTGREY
};
static u_char iso2ibm437[] =
{
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0xff, 0xad, 0x9b, 0x9c, 0, 0x9d, 0, 0x40,
0x6f, 0x63, 0x61, 0xae, 0, 0, 0, 0,
0xf8, 0xf1, 0xfd, 0x33, 0, 0xe6, 0, 0xfa,
0, 0x31, 0x6f, 0xaf, 0xac, 0xab, 0, 0xa8,
0x41, 0x41, 0x41, 0x41, 0x8e, 0x8f, 0x92, 0x80,
0x45, 0x90, 0x45, 0x45, 0x49, 0x49, 0x49, 0x49,
0x81, 0xa5, 0x4f, 0x4f, 0x4f, 0x4f, 0x99, 0x4f,
0x4f, 0x55, 0x55, 0x55, 0x9a, 0x59, 0, 0xe1,
0x85, 0xa0, 0x83, 0x61, 0x84, 0x86, 0x91, 0x87,
0x8a, 0x82, 0x88, 0x89, 0x8d, 0xa1, 0x8c, 0x8b,
0, 0xa4, 0x95, 0xa2, 0x93, 0x6f, 0x94, 0x6f,
0x6f, 0x97, 0xa3, 0x96, 0x81, 0x98, 0, 0
};
/*
* `pc3' termcap emulation.
*/
void
sput(const u_char *cp, int n)
{
struct pccons_context *pc = &pccons_console_context;
u_char c, scroll = 0;
if (pc_xmode > 0)
return;
if (crtat == 0) {
volatile u_short *dp;
u_short was;
unsigned cursorat;
dp = bus_space_vaddr(pc->pc_crt_memt, pc->pc_cga_memh);
was = *dp;
*dp = 0xA55A;
if (*dp != 0xA55A) {
dp = bus_space_vaddr(pc->pc_crt_memt,
pc->pc_mono_memh);
pc->pc_6845_ioh = pc->pc_mono_ioh;
pc->pc_crt_memh = pc->pc_mono_memh;
vs.color = 0;
} else {
*dp = was;
pc->pc_6845_ioh = pc->pc_cga_ioh;
pc->pc_crt_memh = pc->pc_cga_memh;
vs.color = 1;
}
#ifdef FAT_CURSOR
cursor_shape = 0x0012;
#else
get_cursor_shape();
#endif
bios_display_info(&vs.col, &vs.row, &vs.ncol, &vs.nrow);
vs.nchr = vs.ncol * vs.nrow;
vs.col--;
vs.row--;
cursorat = vs.ncol * vs.row + vs.col;
vs.at = FG_LIGHTGREY | BG_BLACK;
Crtat = (u_short *)__UNVOLATILE(dp);
crtat = Crtat + cursorat;
if (vs.color == 0)
vs.so_at = FG_BLACK | BG_LIGHTGREY;
else
vs.so_at = FG_YELLOW | BG_BLACK;
fillw((vs.at << 8) | ' ', crtat, vs.nchr - cursorat);
}
while (n--) {
if (!(c = *cp++))
continue;
switch (c) {
case 0x1B:
if (vs.state >= VSS_ESCAPE) {
wrtchar(c, vs.so_at);
vs.state = 0;
goto maybe_scroll;
} else
vs.state = VSS_ESCAPE;
break;
case 0x9B: /* CSI */
vs.cx = vs.cy = 0;
vs.state = VSS_EBRACE;
break;
case '\t': {
int inccol = 8 - (vs.col & 7);
crtat += inccol;
vs.col += inccol;
}
maybe_scroll:
if (vs.col >= vs.ncol) {
vs.col -= vs.ncol;
scroll = 1;
}
break;
case '\b':
if (crtat <= Crtat)
break;
--crtat;
if (--vs.col < 0)
vs.col += vs.ncol; /* non-destructive backspace */
break;
case '\r':
crtat -= vs.col;
vs.col = 0;
break;
case '\n':
crtat += vs.ncol;
scroll = 1;
break;
default:
switch (vs.state) {
case 0:
if (c == '\a')
sysbeep(BEEP_FREQ, BEEP_TIME);
else {
/*
* If we're outputting multiple printed
* characters, just blast them to the
* screen until we reach the end of the
* buffer or a control character. This
* saves time by short-circuiting the
* switch.
* If we reach the end of the line, we
* break to do a scroll check.
*/
for (;;) {
if (c & 0x80)
c = iso2ibm437[c&0x7f];
if (vs.so)
wrtchar(c, vs.so_at);
else
wrtchar(c, vs.at);
if (vs.col >= vs.ncol) {
vs.col = 0;
scroll = 1;
break;
}
if (!n || (c = *cp) < ' ')
break;
n--, cp++;
}
}
break;
case VSS_ESCAPE:
switch (c) {
case '[': /* Start ESC [ sequence */
vs.cx = vs.cy = 0;
vs.state = VSS_EBRACE;
break;
case 'c': /* Create screen & home */
fillw((vs.at << 8) | ' ',
Crtat, vs.nchr);
crtat = Crtat;
vs.col = 0;
vs.state = 0;
break;
case '7': /* save cursor pos */
vs.offset = crtat - Crtat;
vs.state = 0;
break;
case '8': /* restore cursor pos */
crtat = Crtat + vs.offset;
vs.row = vs.offset / vs.ncol;
vs.col = vs.offset % vs.ncol;
vs.state = 0;
break;
default: /* Invalid, clear state */
wrtchar(c, vs.so_at);
vs.state = 0;
goto maybe_scroll;
}
break;
default: /* VSS_EBRACE or VSS_EPARAM */
switch (c) {
int pos;
case 'm':
if (!vs.cx)
vs.so = 0;
else
vs.so = 1;
vs.state = 0;
break;
case 'A': { /* back cx rows */
int cx = vs.cx;
if (cx <= 0)
cx = 1;
else
cx %= vs.nrow;
pos = crtat - Crtat;
pos -= vs.ncol * cx;
if (pos < 0)
pos += vs.nchr;
crtat = Crtat + pos;
vs.state = 0;
break;
}
case 'B': { /* down cx rows */
int cx = vs.cx;
if (cx <= 0)
cx = 1;
else
cx %= vs.nrow;
pos = crtat - Crtat;
pos += vs.ncol * cx;
if (pos >= vs.nchr)
pos -= vs.nchr;
crtat = Crtat + pos;
vs.state = 0;
break;
}
case 'C': { /* right cursor */
int cx = vs.cx,
col = vs.col;
if (cx <= 0)
cx = 1;
else
cx %= vs.ncol;
pos = crtat - Crtat;
pos += cx;
col += cx;
if (col >= vs.ncol) {
pos -= vs.ncol;
col -= vs.ncol;
}
vs.col = col;
crtat = Crtat + pos;
vs.state = 0;
break;
}
case 'D': { /* left cursor */
int cx = vs.cx,
col = vs.col;
if (cx <= 0)
cx = 1;
else
cx %= vs.ncol;
pos = crtat - Crtat;
pos -= cx;
col -= cx;
if (col < 0) {
pos += vs.ncol;
col += vs.ncol;
}
vs.col = col;
crtat = Crtat + pos;
vs.state = 0;
break;
}
case 'J': /* Clear ... */
switch (vs.cx) {
case 0:
/* ... to end of display */
fillw((vs.at << 8) | ' ',
crtat,
Crtat + vs.nchr - crtat);
break;
case 1:
/* ... to next location */
fillw((vs.at << 8) | ' ',
Crtat,
crtat - Crtat + 1);
break;
case 2:
/* ... whole display */
fillw((vs.at << 8) | ' ',
Crtat,
vs.nchr);
break;
}
vs.state = 0;
break;
case 'K': /* Clear line ... */
switch (vs.cx) {
case 0:
/* ... current to EOL */
fillw((vs.at << 8) | ' ',
crtat,
vs.ncol - vs.col);
break;
case 1:
/* ... beginning to next */
fillw((vs.at << 8) | ' ',
crtat - vs.col,
vs.col + 1);
break;
case 2:
/* ... entire line */
fillw((vs.at << 8) | ' ',
crtat - vs.col, vs.ncol);
break;
}
vs.state = 0;
break;
case 'f': /* in system V consoles */
case 'H': { /* Cursor move */
int cx = vs.cx,
cy = vs.cy;
if (!cx || !cy) {
crtat = Crtat;
vs.col = 0;
} else {
if (cx > vs.nrow)
cx = vs.nrow;
if (cy > vs.ncol)
cy = vs.ncol;
crtat = Crtat +
(cx - 1) * vs.ncol + cy - 1;
vs.col = cy - 1;
}
vs.state = 0;
break;
}
case 'M': { /* delete cx rows */
u_short *crtAt = crtat - vs.col;
int cx = vs.cx,
row = (crtAt - Crtat) / vs.ncol,
nrow = vs.nrow - row;
if (cx <= 0)
cx = 1;
else if (cx > nrow)
cx = nrow;
if (cx < nrow)
#ifdef PCCONS_FORCE_WORD
wcopy(crtAt + vs.ncol * cx,
crtAt, vs.ncol * (nrow -
cx) * CHR);
#else
bcopy(crtAt + vs.ncol * cx,
crtAt, vs.ncol * (nrow -
cx) * CHR);
#endif
fillw((vs.at << 8) | ' ',
crtAt + vs.ncol * (nrow - cx),
vs.ncol * cx);
vs.state = 0;
break;
}
case 'S': { /* scroll up cx lines */
int cx = vs.cx;
if (cx <= 0)
cx = 1;
else if (cx > vs.nrow)
cx = vs.nrow;
if (cx < vs.nrow)
#ifdef PCCONS_FORCE_WORD
wcopy(Crtat + vs.ncol * cx,
Crtat, vs.ncol * (vs.nrow -
cx) * CHR);
#else
bcopy(Crtat + vs.ncol * cx,
Crtat, vs.ncol * (vs.nrow -
cx) * CHR);
#endif
fillw((vs.at << 8) | ' ',
Crtat + vs.ncol * (vs.nrow - cx),
vs.ncol * cx);
/* crtat -= vs.ncol * cx; XXX */
vs.state = 0;
break;
}
case 'L': { /* insert cx rows */
u_short *crtAt = crtat - vs.col;
int cx = vs.cx,
row = (crtAt - Crtat) / vs.ncol,
nrow = vs.nrow - row;
if (cx <= 0)
cx = 1;
else if (cx > nrow)
cx = nrow;
if (cx < nrow)
#ifdef PCCONS_FORCE_WORD
wcopy(crtAt,
crtAt + vs.ncol * cx,
vs.ncol * (nrow - cx) *
CHR);
#else
bcopy(crtAt,
crtAt + vs.ncol * cx,
vs.ncol * (nrow - cx) *
CHR);
#endif
fillw((vs.at << 8) | ' ', crtAt,
vs.ncol * cx);
vs.state = 0;
break;
}
case 'T': { /* scroll down cx lines */
int cx = vs.cx;
if (cx <= 0)
cx = 1;
else if (cx > vs.nrow)
cx = vs.nrow;
if (cx < vs.nrow)
#ifdef PCCONS_FORCE_WORD
wcopy(Crtat,
Crtat + vs.ncol * cx,
vs.ncol * (vs.nrow - cx) *
CHR);
#else
bcopy(Crtat,
Crtat + vs.ncol * cx,
vs.ncol * (vs.nrow - cx) *
CHR);
#endif
fillw((vs.at << 8) | ' ', Crtat,
vs.ncol * cx);
/* crtat += vs.ncol * cx; XXX */
vs.state = 0;
break;
}
case ';': /* Switch params in cursor def */
vs.state = VSS_EPARAM;
break;
case 'r':
vs.so_at = (vs.cx & FG_MASK) |
((vs.cy << 4) & BG_MASK);
vs.state = 0;
break;
case 's': /* save cursor pos */
vs.offset = crtat - Crtat;
vs.state = 0;
break;
case 'u': /* restore cursor pos */
crtat = Crtat + vs.offset;
vs.row = vs.offset / vs.ncol;
vs.col = vs.offset % vs.ncol;
vs.state = 0;
break;
case 'x': /* set attributes */
switch (vs.cx) {
case 0:
vs.at = FG_LIGHTGREY | BG_BLACK;
break;
case 1:
/* ansi background */
if (!vs.color)
break;
vs.at &= FG_MASK;
vs.at |= bgansitopc[vs.cy & 7];
break;
case 2:
/* ansi foreground */
if (!vs.color)
break;
vs.at &= BG_MASK;
vs.at |= fgansitopc[vs.cy & 7];
break;
case 3:
/* pc text attribute */
if (vs.state >= VSS_EPARAM)
vs.at = vs.cy;
break;
}
vs.state = 0;
break;
default: /* Only numbers valid here */
if ((c >= '0') && (c <= '9')) {
if (vs.state >= VSS_EPARAM) {
vs.cy *= 10;
vs.cy += c - '0';
} else {
vs.cx *= 10;
vs.cx += c - '0';
}
} else
vs.state = 0;
break;
}
break;
}
}
if (scroll) {
scroll = 0;
/* scroll check */
if (crtat >= Crtat + vs.nchr) {
if (!kernel) {
int s = spltty();
if (lock_state & KB_SCROLL)
tsleep(&lock_state,
PUSER, "pcputc", 0);
splx(s);
}
#if PCCONS_FORCE_WORD
wcopy(Crtat + vs.ncol, Crtat,
(vs.nchr - vs.ncol) * CHR);
#else
bcopy(Crtat + vs.ncol, Crtat,
(vs.nchr - vs.ncol) * CHR);
#endif
fillw((vs.at << 8) | ' ',
Crtat + vs.nchr - vs.ncol,
vs.ncol);
crtat -= vs.ncol;
}
}
}
async_update();
}
/* the unshifted code for KB_SHIFT keys is used by X to distinguish between
left and right shift when reading the keyboard map */
static pccons_keymap_t scan_codes[KB_NUM_KEYS] = {
/* type unshift shift control altgr shift_altgr scancode */
{ KB_NONE, "", "", "", "", ""}, /* 0 unused */
{ KB_ASCII, "\033", "\033", "\033", "", ""}, /* 1 ESCape */
{ KB_ASCII, "1", "!", "!", "", ""}, /* 2 1 */
{ KB_ASCII, "2", "@", "\000", "", ""}, /* 3 2 */
{ KB_ASCII, "3", "#", "#", "", ""}, /* 4 3 */
{ KB_ASCII, "4", "$", "$", "", ""}, /* 5 4 */
{ KB_ASCII, "5", "%", "%", "", ""}, /* 6 5 */
{ KB_ASCII, "6", "^", "\036", "", ""}, /* 7 6 */
{ KB_ASCII, "7", "&", "&", "", ""}, /* 8 7 */
{ KB_ASCII, "8", "*", "\010", "", ""}, /* 9 8 */
{ KB_ASCII, "9", "(", "(", "", ""}, /* 10 9 */
{ KB_ASCII, "0", ")", ")", "", ""}, /* 11 0 */
{ KB_ASCII, "-", "_", "\037", "", ""}, /* 12 - */
{ KB_ASCII, "=", "+", "+", "", ""}, /* 13 = */
{ KB_ASCII, "\177", "\177", "\010", "", ""}, /* 14 backspace */
{ KB_ASCII, "\t", "\t", "\t", "", ""}, /* 15 tab */
{ KB_ASCII, "q", "Q", "\021", "", ""}, /* 16 q */
{ KB_ASCII, "w", "W", "\027", "", ""}, /* 17 w */
{ KB_ASCII, "e", "E", "\005", "", ""}, /* 18 e */
{ KB_ASCII, "r", "R", "\022", "", ""}, /* 19 r */
{ KB_ASCII, "t", "T", "\024", "", ""}, /* 20 t */
{ KB_ASCII, "y", "Y", "\031", "", ""}, /* 21 y */
{ KB_ASCII, "u", "U", "\025", "", ""}, /* 22 u */
{ KB_ASCII, "i", "I", "\011", "", ""}, /* 23 i */
{ KB_ASCII, "o", "O", "\017", "", ""}, /* 24 o */
{ KB_ASCII, "p", "P", "\020", "", ""}, /* 25 p */
{ KB_ASCII, "[", "{", "\033", "", ""}, /* 26 [ */
{ KB_ASCII, "]", "}", "\035", "", ""}, /* 27 ] */
{ KB_ASCII, "\r", "\r", "\n", "", ""}, /* 28 return */
{ KB_CTL, "", "", "", "", ""}, /* 29 control */
{ KB_ASCII, "a", "A", "\001", "", ""}, /* 30 a */
{ KB_ASCII, "s", "S", "\023", "", ""}, /* 31 s */
{ KB_ASCII, "d", "D", "\004", "", ""}, /* 32 d */
{ KB_ASCII, "f", "F", "\006", "", ""}, /* 33 f */
{ KB_ASCII, "g", "G", "\007", "", ""}, /* 34 g */
{ KB_ASCII, "h", "H", "\010", "", ""}, /* 35 h */
{ KB_ASCII, "j", "J", "\n", "", ""}, /* 36 j */
{ KB_ASCII, "k", "K", "\013", "", ""}, /* 37 k */
{ KB_ASCII, "l", "L", "\014", "", ""}, /* 38 l */
{ KB_ASCII, ";", ":", ";", "", ""}, /* 39 ; */
{ KB_ASCII, "'", "\"", "'", "", ""}, /* 40 ' */
{ KB_ASCII, "`", "~", "`", "", ""}, /* 41 ` */
{ KB_SHIFT, "\001", "", "", "", ""}, /* 42 shift */
{ KB_ASCII, "\\", "|", "\034", "", ""}, /* 43 \ */
{ KB_ASCII, "z", "Z", "\032", "", ""}, /* 44 z */
{ KB_ASCII, "x", "X", "\030", "", ""}, /* 45 x */
{ KB_ASCII, "c", "C", "\003", "", ""}, /* 46 c */
{ KB_ASCII, "v", "V", "\026", "", ""}, /* 47 v */
{ KB_ASCII, "b", "B", "\002", "", ""}, /* 48 b */
{ KB_ASCII, "n", "N", "\016", "", ""}, /* 49 n */
{ KB_ASCII, "m", "M", "\r", "", ""}, /* 50 m */
{ KB_ASCII, ",", "<", "<", "", ""}, /* 51 , */
{ KB_ASCII, ".", ">", ">", "", ""}, /* 52 . */
{ KB_ASCII, "/", "?", "\037", "", ""}, /* 53 / */
{ KB_SHIFT, "\002", "", "", "", ""}, /* 54 shift */
{ KB_KP, "*", "*", "*", "", ""}, /* 55 kp * */
{ KB_ALT, "", "", "", "", ""}, /* 56 alt */
{ KB_ASCII, " ", " ", "\000", "", ""}, /* 57 space */
{ KB_CAPS, "", "", "", "", ""}, /* 58 caps */
{ KB_FUNC, "\033[M", "\033[Y", "\033[k", "", ""}, /* 59 f1 */
{ KB_FUNC, "\033[N", "\033[Z", "\033[l", "", ""}, /* 60 f2 */
{ KB_FUNC, "\033[O", "\033[a", "\033[m", "", ""}, /* 61 f3 */
{ KB_FUNC, "\033[P", "\033[b", "\033[n", "", ""}, /* 62 f4 */
{ KB_FUNC, "\033[Q", "\033[c", "\033[o", "", ""}, /* 63 f5 */
{ KB_FUNC, "\033[R", "\033[d", "\033[p", "", ""}, /* 64 f6 */
{ KB_FUNC, "\033[S", "\033[e", "\033[q", "", ""}, /* 65 f7 */
{ KB_FUNC, "\033[T", "\033[f", "\033[r", "", ""}, /* 66 f8 */
{ KB_FUNC, "\033[U", "\033[g", "\033[s", "", ""}, /* 67 f9 */
{ KB_FUNC, "\033[V", "\033[h", "\033[t", "", ""}, /* 68 f10 */
{ KB_NUM, "", "", "", "", ""}, /* 69 num lock */
{ KB_SCROLL, "", "", "", "", ""}, /* 70 scroll lock */
{ KB_KP, "7", "\033[H", "7", "", ""}, /* 71 kp 7 */
{ KB_KP, "8", "\033[A", "8", "", ""}, /* 72 kp 8 */
{ KB_KP, "9", "\033[I", "9", "", ""}, /* 73 kp 9 */
{ KB_KP, "-", "-", "-", "", ""}, /* 74 kp - */
{ KB_KP, "4", "\033[D", "4", "", ""}, /* 75 kp 4 */
{ KB_KP, "5", "\033[E", "5", "", ""}, /* 76 kp 5 */
{ KB_KP, "6", "\033[C", "6", "", ""}, /* 77 kp 6 */
{ KB_KP, "+", "+", "+", "", ""}, /* 78 kp + */
{ KB_KP, "1", "\033[F", "1", "", ""}, /* 79 kp 1 */
{ KB_KP, "2", "\033[B", "2", "", ""}, /* 80 kp 2 */
{ KB_KP, "3", "\033[G", "3", "", ""}, /* 81 kp 3 */
{ KB_KP, "0", "\033[L", "0", "", ""}, /* 82 kp 0 */
{ KB_KP, ",", "\177", ",", "", ""}, /* 83 kp , */
{ KB_NONE, "", "", "", "", ""}, /* 84 0 */
{ KB_NONE, "", "", "", "", ""}, /* 85 0 */
{ KB_NONE, "", "", "", "", ""}, /* 86 0 */
{ KB_FUNC, "\033[W", "\033[i", "\033[u", "", ""}, /* 87 f11 */
{ KB_FUNC, "\033[X", "\033[j", "\033[v", "", ""}, /* 88 f12 */
{ KB_NONE, "", "", "", "", ""}, /* 89 0 */
{ KB_NONE, "", "", "", "", ""}, /* 90 0 */
{ KB_NONE, "", "", "", "", ""}, /* 91 0 */
{ KB_NONE, "", "", "", "", ""}, /* 92 0 */
{ KB_NONE, "", "", "", "", ""}, /* 93 0 */
{ KB_NONE, "", "", "", "", ""}, /* 94 0 */
{ KB_NONE, "", "", "", "", ""}, /* 95 0 */
{ KB_NONE, "", "", "", "", ""}, /* 96 0 */
{ KB_NONE, "", "", "", "", ""}, /* 97 0 */
{ KB_NONE, "", "", "", "", ""}, /* 98 0 */
{ KB_NONE, "", "", "", "", ""}, /* 99 0 */
{ KB_NONE, "", "", "", "", ""}, /* 100 */
{ KB_NONE, "", "", "", "", ""}, /* 101 */
{ KB_NONE, "", "", "", "", ""}, /* 102 */
{ KB_NONE, "", "", "", "", ""}, /* 103 */
{ KB_NONE, "", "", "", "", ""}, /* 104 */
{ KB_NONE, "", "", "", "", ""}, /* 105 */
{ KB_NONE, "", "", "", "", ""}, /* 106 */
{ KB_NONE, "", "", "", "", ""}, /* 107 */
{ KB_NONE, "", "", "", "", ""}, /* 108 */
{ KB_NONE, "", "", "", "", ""}, /* 109 */
{ KB_NONE, "", "", "", "", ""}, /* 110 */
{ KB_NONE, "", "", "", "", ""}, /* 111 */
{ KB_NONE, "", "", "", "", ""}, /* 112 */
{ KB_NONE, "", "", "", "", ""}, /* 113 */
{ KB_NONE, "", "", "", "", ""}, /* 114 */
{ KB_NONE, "", "", "", "", ""}, /* 115 */
{ KB_NONE, "", "", "", "", ""}, /* 116 */
{ KB_NONE, "", "", "", "", ""}, /* 117 */
{ KB_NONE, "", "", "", "", ""}, /* 118 */
{ KB_NONE, "", "", "", "", ""}, /* 119 */
{ KB_NONE, "", "", "", "", ""}, /* 120 */
{ KB_NONE, "", "", "", "", ""}, /* 121 */
{ KB_NONE, "", "", "", "", ""}, /* 122 */
{ KB_NONE, "", "", "", "", ""}, /* 123 */
{ KB_NONE, "", "", "", "", ""}, /* 124 */
{ KB_NONE, "", "", "", "", ""}, /* 125 */
{ KB_NONE, "", "", "", "", ""}, /* 126 */
{ KB_NONE, "", "", "", "", ""} /* 127 */
};
/*
* Get characters from the keyboard. If none are present, return NULL.
*/
char *
sget(void)
{
u_char dt;
static u_char extended = 0, shift_state = 0;
static u_char capchar[2];
top:
KBD_DELAY;
dt = kbd_data_read_1();
switch (dt) {
case KBR_ACK: case KBR_ECHO:
kb_oq_get = (kb_oq_get + 1) & 7;
if(kb_oq_get != kb_oq_put) {
kbd_data_write_1(kb_oq[kb_oq_get]);
}
goto loop;
case KBR_RESEND:
kbd_data_write_1(kb_oq[kb_oq_get]);
goto loop;
}
if (pc_xmode > 0) {
#if defined(DDB) && defined(XSERVER_DDB)
/* F12 enters the debugger while in X mode */
if (dt == 88)
Debugger();
#endif
capchar[0] = dt;
capchar[1] = 0;
/*
* Check for locking keys.
*
* XXX Setting the LEDs this way is a bit bogus. What if the
* keyboard has been remapped in X?
*/
switch (scan_codes[dt & 0x7f].type) {
case KB_NUM:
if (dt & 0x80) {
shift_state &= ~KB_NUM;
break;
}
if (shift_state & KB_NUM)
break;
shift_state |= KB_NUM;
lock_state ^= KB_NUM;
async_update();
break;
case KB_CAPS:
if (dt & 0x80) {
shift_state &= ~KB_CAPS;
break;
}
if (shift_state & KB_CAPS)
break;
shift_state |= KB_CAPS;
lock_state ^= KB_CAPS;
async_update();
break;
case KB_SCROLL:
if (dt & 0x80) {
shift_state &= ~KB_SCROLL;
break;
}
if (shift_state & KB_SCROLL)
break;
shift_state |= KB_SCROLL;
lock_state ^= KB_SCROLL;
if ((lock_state & KB_SCROLL) == 0)
wakeup((void *)&lock_state);
async_update();
break;
}
return capchar;
}
switch (dt) {
case KBR_EXTENDED:
extended = 1;
goto loop;
}
#ifdef DDB
/*
* Check for cntl-alt-esc.
*/
if ((dt == 1) && (shift_state & (KB_CTL | KB_ALT)) == (KB_CTL | KB_ALT)) {
/* XXX - check pccons_is_console */
Debugger();
dt |= 0x80; /* discard esc (ddb discarded ctl-alt) */
}
#endif
/*
* Check for make/break.
*/
if (dt & 0x80) {
/*
* break
*/
dt &= 0x7f;
switch (scan_codes[dt].type) {
case KB_NUM:
shift_state &= ~KB_NUM;
break;
case KB_CAPS:
shift_state &= ~KB_CAPS;
break;
case KB_SCROLL:
shift_state &= ~KB_SCROLL;
break;
case KB_SHIFT:
shift_state &= ~KB_SHIFT;
break;
case KB_ALT:
if (extended)
shift_state &= ~KB_ALTGR;
else
shift_state &= ~KB_ALT;
break;
case KB_CTL:
shift_state &= ~KB_CTL;
break;
}
} else {
/*
* make
*/
switch (scan_codes[dt].type) {
/*
* locking keys
*/
case KB_NUM:
if (shift_state & KB_NUM)
break;
shift_state |= KB_NUM;
lock_state ^= KB_NUM;
async_update();
break;
case KB_CAPS:
if (shift_state & KB_CAPS)
break;
shift_state |= KB_CAPS;
lock_state ^= KB_CAPS;
async_update();
break;
case KB_SCROLL:
if (shift_state & KB_SCROLL)
break;
shift_state |= KB_SCROLL;
lock_state ^= KB_SCROLL;
if ((lock_state & KB_SCROLL) == 0)
wakeup((void *)&lock_state);
async_update();
break;
/*
* non-locking keys
*/
case KB_SHIFT:
shift_state |= KB_SHIFT;
break;
case KB_ALT:
if (extended)
shift_state |= KB_ALTGR;
else
shift_state |= KB_ALT;
break;
case KB_CTL:
shift_state |= KB_CTL;
break;
case KB_ASCII:
/* control has highest priority */
if (shift_state & KB_CTL)
capchar[0] = scan_codes[dt].ctl[0];
else if (shift_state & KB_ALTGR) {
if (shift_state & KB_SHIFT)
capchar[0] = scan_codes[dt].shift_altgr[0];
else
capchar[0] = scan_codes[dt].altgr[0];
}
else {
if (shift_state & KB_SHIFT)
capchar[0] = scan_codes[dt].shift[0];
else
capchar[0] = scan_codes[dt].unshift[0];
}
if ((lock_state & KB_CAPS) && capchar[0] >= 'a' &&
capchar[0] <= 'z') {
capchar[0] -= ('a' - 'A');
}
capchar[0] |= (shift_state & KB_ALT);
extended = 0;
return capchar;
case KB_NONE:
printf("keycode %d\n",dt);
break;
case KB_FUNC: {
char *more_chars;
if (shift_state & KB_SHIFT)
more_chars = scan_codes[dt].shift;
else if (shift_state & KB_CTL)
more_chars = scan_codes[dt].ctl;
else
more_chars = scan_codes[dt].unshift;
extended = 0;
return more_chars;
}
case KB_KP: {
char *more_chars;
if (shift_state & (KB_SHIFT | KB_CTL) ||
(lock_state & KB_NUM) == 0 || extended)
more_chars = scan_codes[dt].shift;
else
more_chars = scan_codes[dt].unshift;
extended = 0;
return more_chars;
}
}
}
extended = 0;
loop:
if ((kbd_cmd_read_1() & KBS_DIB) == 0)
return 0;
goto top;
}
paddr_t
pcmmap(dev_t dev, off_t offset, int nprot)
{
struct pccons_context *pc = &pccons_console_context;
paddr_t pa;
if (offset >= 0xa0000 && offset < 0xc0000) {
if (bus_space_paddr(pc->pc_crt_memt, pc->pc_mono_memh, &pa))
return -1;
pa += offset - pc->pc_config->pc_mono_memaddr;
return mips_btop(pa);
}
if (offset >= 0x0000 && offset < 0x10000) {
if (bus_space_paddr(pc->pc_crt_iot, pc->pc_mono_ioh, &pa))
return -1;
pa += offset - pc->pc_config->pc_mono_iobase;
return mips_btop(pa);
}
if (offset >= 0x40000000 && offset < 0x40800000) {
if (bus_space_paddr(pc->pc_crt_memt, pc->pc_mono_memh, &pa))
return (-1);
pa += offset - 0x40000000 - pc->pc_config->pc_mono_memaddr;
return mips_btop(pa);
}
return -1;
}
void
pc_xmode_on(void)
{
if (pc_xmode)
return;
pc_xmode = 1;
#ifdef XFREE86_BUG_COMPAT
/* If still unchanged, get current shape. */
if (cursor_shape == 0xffff)
get_cursor_shape();
#endif
}
void
pc_xmode_off(void)
{
if (pc_xmode == 0)
return;
pc_xmode = 0;
#ifdef XFREE86_BUG_COMPAT
/* XXX It would be hard to justify why the X server doesn't do this. */
set_cursor_shape();
#endif
async_update();
}
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