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freebsd/usr.bin/doscmd/tty.c
Thomas Gellekum 1a63d7e08e - First shot at PIC emulation; 
- better 8250 emulation;
- fake vertical retrace bit in Input Status #1 register
  (this was lost in the VGA emu rewrite).

Submitted by:	Igor Serikov <bt@turtle.pangeatech.com>
2001-10-02 11:28:59 +00:00

2223 lines
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/*
* Copyright (c) 1992, 1993, 1996
* Berkeley Software Design, Inc. 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 Berkeley Software
* Design, Inc.
*
* THIS SOFTWARE IS PROVIDED BY Berkeley Software Design, Inc. ``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 Berkeley Software Design, Inc. 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.
*
* BSDI tty.c,v 2.4 1996/04/08 22:03:27 prb Exp
*
* $FreeBSD$
*/
#include <sys/ioctl.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <ctype.h>
#include <err.h>
#include <fcntl.h>
#include <limits.h>
#include <paths.h>
#include <signal.h>
#include <stdio.h>
#include <termios.h>
#include <unistd.h>
#ifdef __FreeBSD__
# include <osreldate.h>
# if __FreeBSD_version >= 500014
# include <sys/kbio.h>
# else
# include <machine/console.h>
# endif
#else
# ifdef __NetBSD__
# include "machine/pccons.h"
# else /* BSD/OS */
# include "/sys/i386/isa/pcconsioctl.h"
# endif
#endif
#ifndef NO_X
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>
#endif
#include "doscmd.h"
#include "AsyncIO.h"
#include "font8x8.h"
#include "font8x14.h"
#include "font8x16.h"
#include "mouse.h"
#include "trap.h"
#include "tty.h"
#include "video.h"
#ifndef NO_X
static int show = 1;
#endif
static int blink = 1;
int flipdelete = 0; /* Flip meaning of delete and backspace */
static u_short break_code = 0x00;
static u_short scan_code = 0x00;
int height;
int width;
int vattr;
const char *xfont = 0;
#ifndef NO_X
Display *dpy;
Window win;
XFontStruct *font;
XImage *xi = 0;
Visual *visual;
unsigned int depth;
unsigned long black;
unsigned long white;
int FW, FH, FD;
GC gc;
GC cgc;
int xfd;
/* LUT for the vram -> XImage conversion */
u_int8_t lut[4][256][8];
/* X pixel values for the RGB triples */
unsigned long pixels[16];
#endif
typedef struct TextLine {
u_short *data;
u_char max_length; /* Not used, but here for future use */
u_char changed:1;
} TextLine;
TextLine *lines = NULL;
int kbd_fd = -1;
int kbd_read = 0;
static struct termios tty_cook, tty_raw;
#define row (CursRow0)
#define col (CursCol0)
/* Local functions */
static void _kbd_event(int, int, void *, regcontext_t *);
static void Failure(void *);
static void SetVREGCur(void);
static void debug_event(int, int, void *, regcontext_t *);
static unsigned char inb_port60(int);
static int inrange(int, int, int);
static void kbd_event(int, int, void *, regcontext_t *);
static u_short read_raw_kbd(int, u_short *);
static void setgc(u_short);
static void video_async_event(int, int, void *, regcontext_t *);
#ifndef NO_X
static void dac2rgb(XColor *, int);
static void prepare_lut(void);
static void putchar_graphics(int, int, int);
static void tty_rwrite_graphics(int, int, int);
static int video_event(XEvent *ev);
static void video_update_graphics(void);
static void video_update_text(void);
static void vram2ximage(void);
#endif
#define PEEKSZ 16
#define K_NEXT *(u_short *)0x41a
#define K_FREE *(u_short *)0x41c
#define K_BUFSTARTP *(u_short *)0x480
#define K_BUFENDP *(u_short *)0x482
#define K_BUFSTART ((u_short *)(0x400 + *(u_short *)0x480))
#define K_BUFEND ((u_short *)(0x400 + *(u_short *)0x482))
#define K_BUF(i) *((u_short *)((u_char *)0x400 + (i)))
#define K1_STATUS BIOSDATA[0x17]
#define K1_RSHIFT 0x01
#define K1_LSHIFT 0x02
#define K1_SHIFT 0x03
#define K1_CTRL 0x04
#define K1_ALT 0x08
#define K1_SLOCK 0x10 /* Active */
#define K1_NLOCK 0x20 /* Active */
#define K1_CLOCK 0x40 /* Active */
#define K1_INSERT 0x80 /* Active */
#define K2_STATUS BIOSDATA[0x18]
#define K2_LCTRL 0x01
#define K2_LALT 0x02
#define K2_SYSREQ 0x04
#define K2_PAUSE 0x08
#define K2_SLOCK 0x10 /* Actually held down */
#define K2_NLOCK 0x20 /* Actually held down */
#define K2_CLOCK 0x40 /* Actually held down */
#define K2_INSERT 0x80 /* Actually held down */
#define K3_STATUS BIOSDATA[0x96]
#define K3_E1 0x01 /* Last code read was e1 */
#define K3_E2 0x02 /* Last code read was e2 */
#define K3_RCTRL 0x04
#define K3_RALT 0x08
#define K3_ENHANCED 0x10
#define K3_FORCENLOCK 0x20
#define K3_TWOBYTE 0x40 /* last code was first of 2 */
#define K3_READID 0x80 /* read ID in progress */
#define K4_STATUS BIOSDATA[0x97]
#define K4_SLOCK_LED 0x01
#define K4_NLOCK_LED 0x02
#define K4_CLOCK_LED 0x04
#define K4_ACK 0x10 /* ACK recieved from keyboard */
#define K4_RESEND 0x20 /* RESEND recieved from keyboard */
#define K4_LED 0x40 /* LED update in progress */
#define K4_ERROR 0x80
static void
Failure(void *arg)
{
fprintf(stderr, "X Connection shutdown\n");
quit(1);
}
static void
SetVREGCur()
{
int cp = row * width + col;
VGA_CRTC[CRTC_CurLocHi] = cp >> 8;
VGA_CRTC[CRTC_CurLocLo] = cp & 0xff;
}
static void
console_denit(void *arg)
{
int fd = *(int *)arg;
#ifdef __FreeBSD__
if (ioctl(fd, KDSKBMODE, K_XLATE))
perror("KDSKBMODE/K_XLATE");
#else
# ifdef __NetBSD__
if (ioctl(fd, CONSOLE_X_MODE_OFF, 0))
perror("CONSOLE_X_MODE_OFF");
# else /* BSD/OS */
if (ioctl(fd, PCCONIOCCOOK, 0))
perror("PCCONIOCCOOK");
# endif
#endif
if (tcsetattr(fd, TCSANOW, &tty_cook))
perror("tcsetattr");
}
void
_kbd_event(int fd, int cond, void *arg, regcontext_t *REGS)
{
if (!(cond & AS_RD))
return;
printf("_kbd_event: fd=%d\n", fd);
kbd_read = 1;
}
void
console_init()
{
int fd;
caddr_t addr;
if ((fd = open("/dev/vga", 2)) < 0) {
perror("/dev/vga");
quit(1);
}
addr = mmap((caddr_t)0xA0000, 5 * 64 * 1024,
PROT_EXEC | PROT_READ | PROT_WRITE,
MAP_FILE | MAP_FIXED | MAP_SHARED,
fd, 0);
if (addr != (caddr_t)0xA0000) {
perror("mmap");
quit(1);
}
#if 0
addr = mmap((caddr_t)0x100000 - 0x1000, 0x1000,
PROT_EXEC | PROT_READ | PROT_WRITE,
MAP_FILE | MAP_FIXED | MAP_SHARED,
fd, 0);
if (addr != (caddr_t)(0x100000 - 0x1000)) {
perror("mmap");
quit(1);
}
#endif
if ((fd = open(_PATH_CONSOLE, 2)) < 0) {
perror(_PATH_CONSOLE);
quit(1);
}
fd = squirrel_fd(fd);
kbd_fd = fd;
#ifdef __FreeBSD__
if (ioctl(fd, KDSKBMODE, K_RAW)) {
perror("KDSKBMODE/K_RAW");
quit(1);
}
#else
# ifdef __NetBSD__
if (ioctl(fd, CONSOLE_X_MODE_ON, 0)) {
perror("CONSOLE_X_MODE_ON");
quit(1);
}
# else /* BSD/OS */
if (ioctl(fd, PCCONIOCRAW, 0)) {
perror("PCCONIOCRAW");
quit(1);
}
# endif
#endif
call_on_quit(console_denit, &kbd_fd);
if (fcntl(fd, F_SETFL, O_NDELAY|O_ASYNC) < 0) {
perror("fcntl");
quit(1);
}
if (tcgetattr(fd, &tty_cook)) {
perror("tcgetattr");
quit(1);
}
tty_raw = tty_cook;
cfmakeraw(&tty_raw);
if (tcsetattr(fd, TCSANOW, &tty_raw)) {
perror("tcsetattr");
quit(1);
}
#if 0
_RegisterIO(STDIN_FILENO, debug_event, 0, Failure);
_RegisterIO(fd, kbd_event, 0, Failure);
#endif
_RegisterIO(fd, _kbd_event, 0, Failure);
}
void
video_setborder(int color)
{
#ifndef NO_X
XSetWindowBackground(dpy, win, pixels[color & 0xf]);
#endif
}
void
video_blink(int mode)
{
blink = mode;
}
static void
setgc(u_short attr)
{
#ifndef NO_X
XGCValues v;
if (blink && !show && (attr & 0x8000))
v.foreground = pixels[(attr >> 12) & 0x07];
else
v.foreground = pixels[(attr >> 8) & 0x0f];
v.background = pixels[(attr >> 12) & (blink ? 0x07 : 0x0f)];
XChangeGC(dpy, gc, GCForeground|GCBackground, &v);
#endif
}
void
video_update(regcontext_t *REGS)
{
#ifndef NO_X
static int icnt = 3;
if (kbd_read)
kbd_event(kbd_fd, AS_RD, 0, REGS);
if (--icnt == 0) {
icnt = 3;
lpt_poll(); /* Handle timeout on lpt code */
/* quick and dirty */
if (VGA_ATC[ATC_ModeCtrl] & 1)
video_update_graphics();
else
video_update_text();
}
#endif
}
#ifndef NO_X
static void
video_update_graphics()
{
vram2ximage();
XPutImage(dpy, win, DefaultGC(dpy, DefaultScreen(dpy)),
xi, 0, 0, 0, 0, width, height);
XFlush(dpy);
return;
}
static void
video_update_text()
{
static int or = -1;
static int oc = -1;
static char buf[256];
int r, c;
int attr = vmem[0] & 0xff00;
XGCValues v;
if (xmode) {
wakeup_poll(); /* Wake up anyone waiting on kbd poll */
show ^= 1;
setgc(attr);
for (r = 0; r < height; ++r) {
int cc = 0;
if (!lines[r].changed) {
if ((r == or || r == row) && (or != row || oc != col))
lines[r].changed = 1;
else {
for (c = 0; c < width; ++c) {
if (lines[r].data[c] != vmem[r * width + c]) {
lines[r].changed = 1;
break;
}
if (blink && lines[r].data[c] & 0x8000) {
lines[r].changed = 1;
break;
}
}
}
}
if (!lines[r].changed)
continue;
reset_poll();
lines[r].changed = 0;
memcpy(lines[r].data,
&vmem[r * width], sizeof(u_short) * width);
for (c = 0; c < width; ++c) {
int cv = vmem[r * width + c];
if ((cv & 0xff00) != attr) {
if (cc < c)
XDrawImageString(dpy, win, gc,
2 + cc * FW,
2 + (r + 1) * FH,
buf + cc, c - cc);
cc = c;
attr = cv & 0xff00;
setgc(attr);
}
buf[c] = (cv & 0xff) ? cv & 0xff : ' ';
}
if (cc < c) {
XDrawImageString(dpy, win, gc,
2 + cc * FW,
2 + (r + 1) * FH,
buf + cc, c - cc);
}
}
or = row;
oc = col;
if (CursStart <= CursEnd && CursEnd <= FH &&
show && row < height && col < width) {
attr = vmem[row * width + col] & 0xff00;
v.foreground = pixels[(attr >> 8) & 0x0f] ^
pixels[(attr >> 12) & (blink ? 0x07 : 0x0f)];
if (v.foreground) {
v.function = GXxor;
} else {
v.foreground = pixels[7];
v.function = GXcopy;
}
XChangeGC(dpy, cgc, GCForeground | GCFunction, &v);
XFillRectangle(dpy, win, cgc,
2 + col * FW,
2 + row * FH + CursStart + FD,
FW, CursEnd + 1 - CursStart);
}
if (mouse_status.installed && mouse_status.show) {
c = mouse_status.x / mouse_status.hmickey;
r = mouse_status.y / mouse_status.vmickey;
lines[r].changed = 1;
attr = vmem[r * width + c] & 0xff00;
v.foreground = pixels[(attr >> 8) & 0x0f] ^
pixels[(attr >> 12) & 0x0f];
if (v.foreground) {
v.function = GXxor;
} else {
v.foreground = pixels[7];
v.function = GXcopy;
}
XChangeGC(dpy, cgc, GCForeground | GCFunction, &v);
XFillRectangle(dpy, win, cgc,
2 + c * FW,
2 + r * FH + 2,
FW, FH);
}
XFlush(dpy);
}
}
/* Convert the contents of the video RAM into an XImage.
Bugs: - The function is way too slow.
- It only works for the 16 color modes.
- It only works on 15/16-bit TrueColor visuals. */
static void
vram2ximage()
{
int i, x, y, yoffset;
u_int16_t *image = (u_int16_t *)xi->data;
yoffset = 0;
for (y = 0; y < height; y++) {
yoffset += width / 8;
for (x = 0; x < width; x += 8) {
int offset = yoffset + x / 8;
for (i = 0; i < 8; i++) {
int color = lut[0][vplane0[offset]][i] |
lut[1][vplane1[offset]][i] |
lut[2][vplane2[offset]][i] |
lut[3][vplane3[offset]][i];
*image++ = (u_int16_t)pixels[color];
}
}
}
return;
}
#endif
static u_short Ascii2Scan[] = {
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
0x000e, 0x000f, 0xffff, 0xffff, 0xffff, 0x001c, 0xffff, 0xffff,
0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff, 0xffff,
0xffff, 0xffff, 0xffff, 0x0001, 0xffff, 0xffff, 0xffff, 0xffff,
0x0039, 0x0102, 0x0128, 0x0104, 0x0105, 0x0106, 0x0108, 0x0028,
0x010a, 0x010b, 0x0109, 0x010d, 0x0033, 0x000c, 0x0034, 0x0035,
0x000b, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, 0x0008,
0x0009, 0x000a, 0x0127, 0x0027, 0x0133, 0x000d, 0x0134, 0x0135,
0x0103, 0x011e, 0x0130, 0x012e, 0x0120, 0x0112, 0x0121, 0x0122,
0x0123, 0x0117, 0x0124, 0x0125, 0x0126, 0x0132, 0x0131, 0x0118,
0x0119, 0x0110, 0x0113, 0x011f, 0x0114, 0x0116, 0x012f, 0x0111,
0x012d, 0x0115, 0x012c, 0x001a, 0x002b, 0x001b, 0x0107, 0x010c,
0x0029, 0x001e, 0x0030, 0x002e, 0x0020, 0x0012, 0x0021, 0x0022,
0x0023, 0x0017, 0x0024, 0x0025, 0x0026, 0x0032, 0x0031, 0x0018,
0x0019, 0x0010, 0x0013, 0x001f, 0x0014, 0x0016, 0x002f, 0x0011,
0x002d, 0x0015, 0x002c, 0x011a, 0x012b, 0x011b, 0x0129, 0xffff,
};
struct {
u_short base;
u_short shift;
u_short ctrl;
u_short alt;
} ScanCodes[] = {
{ 0xffff, 0xffff, 0xffff, 0xffff }, /* key 0 */
{ 0x011b, 0x011b, 0x011b, 0xffff }, /* key 1 - Escape key */
{ 0x0231, 0x0221, 0xffff, 0x7800 }, /* key 2 - '1' */
{ 0x0332, 0x0340, 0x0300, 0x7900 }, /* key 3 - '2' - special handling */
{ 0x0433, 0x0423, 0xffff, 0x7a00 }, /* key 4 - '3' */
{ 0x0534, 0x0524, 0xffff, 0x7b00 }, /* key 5 - '4' */
{ 0x0635, 0x0625, 0xffff, 0x7c00 }, /* key 6 - '5' */
{ 0x0736, 0x075e, 0x071e, 0x7d00 }, /* key 7 - '6' */
{ 0x0837, 0x0826, 0xffff, 0x7e00 }, /* key 8 - '7' */
{ 0x0938, 0x092a, 0xffff, 0x7f00 }, /* key 9 - '8' */
{ 0x0a39, 0x0a28, 0xffff, 0x8000 }, /* key 10 - '9' */
{ 0x0b30, 0x0b29, 0xffff, 0x8100 }, /* key 11 - '0' */
{ 0x0c2d, 0x0c5f, 0x0c1f, 0x8200 }, /* key 12 - '-' */
{ 0x0d3d, 0x0d2b, 0xffff, 0x8300 }, /* key 13 - '=' */
{ 0x0e08, 0x0e08, 0x0e7f, 0xffff }, /* key 14 - backspace */
{ 0x0f09, 0x0f00, 0xffff, 0xffff }, /* key 15 - tab */
{ 0x1071, 0x1051, 0x1011, 0x1000 }, /* key 16 - 'Q' */
{ 0x1177, 0x1157, 0x1117, 0x1100 }, /* key 17 - 'W' */
{ 0x1265, 0x1245, 0x1205, 0x1200 }, /* key 18 - 'E' */
{ 0x1372, 0x1352, 0x1312, 0x1300 }, /* key 19 - 'R' */
{ 0x1474, 0x1454, 0x1414, 0x1400 }, /* key 20 - 'T' */
{ 0x1579, 0x1559, 0x1519, 0x1500 }, /* key 21 - 'Y' */
{ 0x1675, 0x1655, 0x1615, 0x1600 }, /* key 22 - 'U' */
{ 0x1769, 0x1749, 0x1709, 0x1700 }, /* key 23 - 'I' */
{ 0x186f, 0x184f, 0x180f, 0x1800 }, /* key 24 - 'O' */
{ 0x1970, 0x1950, 0x1910, 0x1900 }, /* key 25 - 'P' */
{ 0x1a5b, 0x1a7b, 0x1a1b, 0xffff }, /* key 26 - '[' */
{ 0x1b5d, 0x1b7d, 0x1b1d, 0xffff }, /* key 27 - ']' */
{ 0x1c0d, 0x1c0d, 0x1c0a, 0xffff }, /* key 28 - CR */
{ 0xffff, 0xffff, 0xffff, 0xffff }, /* key 29 - control */
{ 0x1e61, 0x1e41, 0x1e01, 0x1e00 }, /* key 30 - 'A' */
{ 0x1f73, 0x1f53, 0x1f13, 0x1f00 }, /* key 31 - 'S' */
{ 0x2064, 0x2044, 0x2004, 0x2000 }, /* key 32 - 'D' */
{ 0x2166, 0x2146, 0x2106, 0x2100 }, /* key 33 - 'F' */
{ 0x2267, 0x2247, 0x2207, 0x2200 }, /* key 34 - 'G' */
{ 0x2368, 0x2348, 0x2308, 0x2300 }, /* key 35 - 'H' */
{ 0x246a, 0x244a, 0x240a, 0x2400 }, /* key 36 - 'J' */
{ 0x256b, 0x254b, 0x250b, 0x2500 }, /* key 37 - 'K' */
{ 0x266c, 0x264c, 0x260c, 0x2600 }, /* key 38 - 'L' */
{ 0x273b, 0x273a, 0xffff, 0xffff }, /* key 39 - ';' */
{ 0x2827, 0x2822, 0xffff, 0xffff }, /* key 40 - ''' */
{ 0x2960, 0x297e, 0xffff, 0xffff }, /* key 41 - '`' */
{ 0xffff, 0xffff, 0xffff, 0xffff }, /* key 42 - left shift */
{ 0x2b5c, 0x2b7c, 0x2b1c, 0xffff }, /* key 43 - '' */
{ 0x2c7a, 0x2c5a, 0x2c1a, 0x2c00 }, /* key 44 - 'Z' */
{ 0x2d78, 0x2d58, 0x2d18, 0x2d00 }, /* key 45 - 'X' */
{ 0x2e63, 0x2e43, 0x2e03, 0x2e00 }, /* key 46 - 'C' */
{ 0x2f76, 0x2f56, 0x2f16, 0x2f00 }, /* key 47 - 'V' */
{ 0x3062, 0x3042, 0x3002, 0x3000 }, /* key 48 - 'B' */
{ 0x316e, 0x314e, 0x310e, 0x3100 }, /* key 49 - 'N' */
{ 0x326d, 0x324d, 0x320d, 0x3200 }, /* key 50 - 'M' */
{ 0x332c, 0x333c, 0xffff, 0xffff }, /* key 51 - ',' */
{ 0x342e, 0x343e, 0xffff, 0xffff }, /* key 52 - '.' */
{ 0x352f, 0x353f, 0xffff, 0xffff }, /* key 53 - '/' */
{ 0xffff, 0xffff, 0xffff, 0xffff }, /* key 54 - right shift - */
{ 0x372a, 0xffff, 0x3772, 0xffff }, /* key 55 - prt-scr - */
{ 0xffff, 0xffff, 0xffff, 0xffff }, /* key 56 - Alt - */
{ 0x3920, 0x3920, 0x3920, 0x3920 }, /* key 57 - space bar */
{ 0xffff, 0xffff, 0xffff, 0xffff }, /* key 58 - caps-lock - */
{ 0x3b00, 0x5400, 0x5e00, 0x6800 }, /* key 59 - F1 */
{ 0x3c00, 0x5500, 0x5f00, 0x6900 }, /* key 60 - F2 */
{ 0x3d00, 0x5600, 0x6000, 0x6a00 }, /* key 61 - F3 */
{ 0x3e00, 0x5700, 0x6100, 0x6b00 }, /* key 62 - F4 */
{ 0x3f00, 0x5800, 0x6200, 0x6c00 }, /* key 63 - F5 */
{ 0x4000, 0x5900, 0x6300, 0x6d00 }, /* key 64 - F6 */
{ 0x4100, 0x5a00, 0x6400, 0x6e00 }, /* key 65 - F7 */
{ 0x4200, 0x5b00, 0x6500, 0x6f00 }, /* key 66 - F8 */
{ 0x4300, 0x5c00, 0x6600, 0x7000 }, /* key 67 - F9 */
{ 0x4400, 0x5d00, 0x6700, 0x7100 }, /* key 68 - F10 */
{ 0xffff, 0xffff, 0xffff, 0xffff }, /* key 69 - num-lock - */
{ 0xffff, 0xffff, 0xffff, 0xffff }, /* key 70 - scroll-lock - */
{ 0x4700, 0x4737, 0x7700, 0xffff }, /* key 71 - home */
{ 0x4800, 0x4838, 0xffff, 0xffff }, /* key 72 - cursor up */
{ 0x4900, 0x4939, 0x8400, 0xffff }, /* key 73 - page up */
{ 0x4a2d, 0x4a2d, 0xffff, 0xffff }, /* key 74 - minus sign */
{ 0x4b00, 0x4b34, 0x7300, 0xffff }, /* key 75 - cursor left */
{ 0xffff, 0x4c35, 0xffff, 0xffff }, /* key 76 - center key */
{ 0x4d00, 0x4d36, 0x7400, 0xffff }, /* key 77 - cursor right */
{ 0x4e2b, 0x4e2b, 0xffff, 0xffff }, /* key 78 - plus sign */
{ 0x4f00, 0x4f31, 0x7500, 0xffff }, /* key 79 - end */
{ 0x5000, 0x5032, 0xffff, 0xffff }, /* key 80 - cursor down */
{ 0x5100, 0x5133, 0x7600, 0xffff }, /* key 81 - page down */
{ 0x5200, 0x5230, 0xffff, 0xffff }, /* key 82 - insert */
{ 0x5300, 0x532e, 0xffff, 0xffff }, /* key 83 - delete */
{ 0xffff, 0xffff, 0xffff, 0xffff }, /* key 84 - sys key */
{ 0xffff, 0xffff, 0xffff, 0xffff }, /* key 85 */
{ 0xffff, 0xffff, 0xffff, 0xffff }, /* key 86 */
{ 0x8500, 0x5787, 0x8900, 0x8b00 }, /* key 87 - F11 */
{ 0x8600, 0x5888, 0x8a00, 0x8c00 }, /* key 88 - F12 */
};
void
debug_event(int fd, int cond, void *arg, regcontext_t *REGS)
{
static char ibuf[1024];
static int icnt = 0;
static u_short ds = 0;
static u_short di = 0;
static u_short cnt = 16 * 8;
char *ep;
int r;
if (!(cond & AS_RD))
return;
r = read(STDIN_FILENO, ibuf + icnt, sizeof(ibuf) - icnt);
if (r <= 0)
return;
icnt += r;
ibuf[icnt] = 0;
while ((ep = strchr(ibuf, '\n')) != 0) {
int ac;
char *_av[16];
char **av;
*ep++ = 0;
ac = ParseBuffer(ibuf, av = _av, 16);
if (ac > 0) {
if (!strcasecmp(av[0], "dump")) {
if (ac > 1) {
char *c;
if ((c = strchr(av[1], ':')) != 0) {
ds = strtol(av[1], 0, 16);
di = strtol(c+1, 0, 16);
} else
di = strtol(av[1], 0, 16);
}
if (ac > 2)
cnt = strtol(av[2], 0, 0);
cnt = (cnt + 0xf) & ~0xf;
if (cnt == 0)
cnt = 0x10;
di &= ~0xf;
for (r = 0; r < cnt; r += 0x10, di = (di + 0x10) & 0xffff) {
int i;
u_char *ap = (u_char *)(((u_long)ds << 4) + di);
printf("%04x:%04x:", ds, di);
for (i = 0; i < 8; ++i)
printf(" %02x", ap[i]);
printf(" ");
for (i = 8; i < 16; ++i)
printf(" %02x", ap[i]);
printf(": ");
for (i = 0; i < 8; ++i)
printf("%c",(ap[i] < ' ' || ap[i] > '~') ? '.' : ap[i]);
printf(" ");
for (i = 8; i < 16; ++i)
printf("%c",(ap[i] < ' ' || ap[i] > '~') ? '.' : ap[i]);
printf("\n");
}
} else if (!strcasecmp(av[0], "dis")) {
u_char *ap = (u_char *)(((u_long)ds << 4) + di);
if (ac > 1) {
char *c;
if ((c = strchr(av[1], ':')) != 0) {
ds = strtol(av[1], 0, 16);
di = strtol(c+1, 0, 16);
} else
di = strtol(av[1], 0, 16);
}
if (ac > 2)
cnt = strtol(av[2], 0, 0);
for (r = 0; r < cnt; ++r) {
char buf[16];
int c = i386dis(ds, di, ap, buf, 0);
printf("%04x:%04x %s\n", ds, di, buf);
di += c;
ap += c;
}
} else if (!strcasecmp(av[0], "regs")) {
dump_regs(REGS);
} else if (!strcasecmp(av[0], "force")) {
char *p = av[1];
while ((p = *++av) != 0) {
while (*p) {
if (*p >= ' ' && *p <= '~')
KbdWrite(ScanCodes[Ascii2Scan[(int)*p] & 0xff].base);
++p;
}
}
KbdWrite(ScanCodes[28].base);
} else if (!strcasecmp(av[0], "bell")) {
#ifndef NO_X
XBell(dpy, 0);
XFlush(dpy);
#endif
} else {
fprintf(stderr, "%s: unknown command\n", av[0]);
}
}
if (ep < ibuf + icnt) {
char *f = ep;
char *t = ibuf;
icnt -= ep - ibuf;
while (icnt--)
*t++ = *f++;
} else
icnt = 0;
ibuf[icnt] = 0;
}
}
unsigned char
inb_port60(int port)
{
int r = break_code;
break_code = 0;
scan_code = 0xffff;
return(r);
}
void
kbd_event(int fd, int cond, void *arg, regcontext_t *REGS)
{
if (!(cond & AS_RD))
return;
kbd_read = 0;
printf("kbd_event: fd=%d\n", fd);
if ((break_code = read_raw_kbd(fd, &scan_code)) != 0xffff)
hardint(0x01);
}
void
int09(REGISTERS)
{
if (raw_kbd) {
if (scan_code != 0xffff) {
KbdWrite(scan_code);
break_code = 0;
scan_code = 0xffff;
#if 0
kbd_event(kbd_fd, 0, sc, REGS);
#endif
}
}
send_eoi();
}
u_short
read_raw_kbd(int fd, u_short *code)
{
unsigned char c;
*code = 0xffff;
if (read(fd, &c, 1) == 1) {
if (c == 0xe0) {
K3_STATUS |= K3_TWOBYTE;
return(c);
}
switch (c) {
case 29: /* Control */
K1_STATUS |= K1_CTRL;
if (K3_STATUS & K3_TWOBYTE)
K3_STATUS |= K3_RCTRL;
else
K2_STATUS |= K2_LCTRL;
break;
case 29 | 0x80: /* Control */
K1_STATUS &= ~K1_CTRL;
if (K3_STATUS & K3_TWOBYTE)
K3_STATUS &= ~K3_RCTRL;
else
K2_STATUS &= ~K2_LCTRL;
break;
case 42: /* left shift */
K1_STATUS |= K1_LSHIFT;
break;
case 42 | 0x80: /* left shift */
K1_STATUS &= ~K1_LSHIFT;
break;
case 54: /* right shift */
K1_STATUS |= K1_RSHIFT;
break;
case 54 | 0x80: /* right shift */
K1_STATUS &= ~K1_RSHIFT;
break;
case 56: /* Alt */
K1_STATUS |= K1_ALT;
if (K3_STATUS & K3_TWOBYTE)
K3_STATUS |= K3_RALT;
else
K2_STATUS |= K2_LALT;
break;
case 56 | 0x80: /* Alt */
K1_STATUS &= ~K1_ALT;
if (K3_STATUS & K3_TWOBYTE)
K3_STATUS &= ~K3_RALT;
else
K2_STATUS &= ~K2_LALT;
break;
case 58: /* caps-lock */
K1_STATUS ^= K1_CLOCK;
if (K1_STATUS & K1_CLOCK)
K4_STATUS |= K4_CLOCK_LED;
else
K4_STATUS &= ~K4_CLOCK_LED;
K2_STATUS |= K2_CLOCK;
break;
case 58 | 0x80: /* caps-lock */
K2_STATUS &= ~K2_CLOCK;
break;
case 69: /* num-lock */
K1_STATUS ^= K1_NLOCK;
if (K1_STATUS & K1_NLOCK)
K4_STATUS |= K4_NLOCK_LED;
else
K4_STATUS &= ~K4_NLOCK_LED;
K2_STATUS |= K2_NLOCK;
break;
case 69 | 0x80: /* num-lock */
K2_STATUS &= ~K2_NLOCK;
break;
case 70: /* scroll-lock */
K1_STATUS ^= K1_SLOCK;
if (K1_STATUS & K1_SLOCK)
K4_STATUS |= K4_SLOCK_LED;
else
K4_STATUS &= ~K4_SLOCK_LED;
K2_STATUS |= K2_SLOCK;
break;
case 70 | 0x80: /* scroll-lock */
K2_STATUS &= ~K2_SLOCK;
break;
case 82: /* insert */
K1_STATUS ^= K1_INSERT;
K2_STATUS |= K2_INSERT;
break;
case 82 | 0x80: /* insert */
K2_STATUS &= ~K2_INSERT;
break;
}
#if 0 /*XXXXX*/
if ((K4_STATUS & 0x07) != oldled) {
oldled = K4_STATUS & 0x07;
ioctl (fd, PCCONIOCSETLED, &oldled);
}
#endif
if (c == 83 && (K1_STATUS & (K1_ALT|K1_CTRL)) == (K1_ALT|K1_CTRL))
quit(0);
if (c < 89) {
u_short scode;
if (K1_STATUS & K1_ALT) {
scode = ScanCodes[c].alt;
} else if (K1_STATUS & K1_CTRL) {
scode = ScanCodes[c].ctrl;
} else if (K1_STATUS & K1_SHIFT) {
scode = ScanCodes[c].shift;
} else {
scode = ScanCodes[c].base;
if (K1_STATUS & K1_CLOCK) {
if (islower(scode & 0xff)) {
scode = (scode & 0xff00) | toupper(scode & 0xff);
}
}
if ((K1_STATUS & K1_NLOCK) && (K3_STATUS & K3_TWOBYTE) == 0) {
switch (c) {
case 71: /* home */
case 72: /* cursor up */
case 73: /* page up */
case 75: /* cursor left */
case 76: /* center key */
case 77: /* cursor right */
case 79: /* end */
case 80: /* cursor down */
case 81: /* page down */
case 82: /* insert */
case 83: /* delete */
scode = ScanCodes[c].shift;
break;
}
}
}
*code = scode;
}
K3_STATUS &= ~K3_TWOBYTE;
if ((K1_STATUS&(K1_ALT|K1_CTRL)) == (K1_ALT|K1_CTRL)) {
switch (c) {
case 0x13: /* R */
kill(getpid(), SIGALRM); /* force redraw */
printf("FORCED REDRAW\n");
return(0xffff);
case 0x14: /* T */
tmode ^= 1;
if (!tmode)
resettrace((regcontext_t *)&saved_sigframe->
sf_uc.uc_mcontext);
return(0xffff);
case 0x53: /* DEL */
quit(0);
}
}
return(c);
} else {
return(0xffff);
}
}
void
video_async_event(int fd, int cond, void *arg, regcontext_t *REGS)
{
#ifndef NO_X
int int9 = 0;
if (!(cond & AS_RD))
return;
for (;;) {
int x;
fd_set fdset;
XEvent ev;
static struct timeval tv;
/*
* Handle any events just sitting around...
*/
XFlush(dpy);
while (QLength(dpy) > 0) {
XNextEvent(dpy, &ev);
int9 |= video_event(&ev);
}
FD_ZERO(&fdset);
FD_SET(fd, &fdset);
x = select(FD_SETSIZE, &fdset, 0, 0, &tv);
switch (x) {
case -1:
/*
* Errno might be wrong, so we just select again.
* This could cause a problem is something really
* was wrong with select....
*/
perror("select");
return;
case 0:
XFlush(dpy);
if (int9)
hardint(0x01);
return;
default:
if (FD_ISSET(fd, &fdset)) {
do {
XNextEvent(dpy, &ev);
int9 |= video_event(&ev);
} while (QLength(dpy));
}
break;
}
}
#endif
}
#ifndef NO_X
static int
video_event(XEvent *ev)
{
switch (ev->type) {
case MotionNotify: {
XMotionEvent *me = (XMotionEvent *)ev;
me->x -= 2;
me->y -= 2;
mouse_status.x = (me->x < mouse_status.range.x)
? mouse_status.range.x
: (me->x > mouse_status.range.w)
? mouse_status.range.w : me->x;
mouse_status.y = (me->y < mouse_status.range.y)
? mouse_status.range.y
: (me->y > mouse_status.range.h)
? mouse_status.range.h : me->y;
break;
}
case ButtonRelease: {
XButtonEvent *be = (XButtonEvent *)ev;
be->x -= 2;
be->y -= 2;
if (be->button < 3)
mouse_status.ups[be->button]++;
mouse_status.x = (be->x < mouse_status.range.x)
? mouse_status.range.x
: (be->x > mouse_status.range.w)
? mouse_status.range.w : be->x;
mouse_status.y = (be->y < mouse_status.range.y)
? mouse_status.range.y
: (be->y > mouse_status.range.h)
? mouse_status.range.h : be->y;
break;
}
case ButtonPress: {
XButtonEvent *be = (XButtonEvent *)ev;
be->x -= 2;
be->y -= 2;
if (be->button < 3)
mouse_status.downs[be->button]++;
mouse_status.x = (be->x < mouse_status.range.x)
? mouse_status.range.x
: (be->x > mouse_status.range.w)
? mouse_status.range.w : be->x;
mouse_status.y = (be->y < mouse_status.range.y)
? mouse_status.range.y
: (be->y > mouse_status.range.h)
? mouse_status.range.h : be->y;
if ((K1_STATUS & (K1_ALT|K1_CTRL)) == (K1_ALT|K1_CTRL)) {
quit(0);
}
break;
}
case NoExpose:
break;
case GraphicsExpose:
case Expose: {
int r;
for (r = 0; r < height; ++r)
lines[r].changed = 1;
break;
}
case KeyRelease: {
static char buf[128];
KeySym ks;
break_code |= 0x80;
if (!(ev->xkey.state & ShiftMask)) {
K1_STATUS &= ~K1_LSHIFT;
K1_STATUS &= ~K1_RSHIFT;
}
if (!(ev->xkey.state & ControlMask)) {
K1_STATUS &= ~K1_CTRL;
K2_STATUS &= ~K2_LCTRL;
K3_STATUS &= ~K3_RCTRL;
}
if (!(ev->xkey.state & Mod1Mask)) {
K1_STATUS &= ~K1_ALT;
K2_STATUS &= ~K2_LALT;
K3_STATUS &= ~K3_RALT;
}
if (!(ev->xkey.state & LockMask)) {
K2_STATUS &= ~K2_CLOCK;
}
XLookupString((XKeyEvent *)ev, buf, sizeof(buf), &ks, 0);
switch (ks) {
case XK_Shift_L:
K1_STATUS &= ~K1_LSHIFT;
break;
case XK_Shift_R:
K1_STATUS &= ~K1_RSHIFT;
break;
case XK_Control_L:
K1_STATUS &= ~K1_CTRL;
K2_STATUS &= ~K2_LCTRL;
break;
case XK_Control_R:
K1_STATUS &= ~K1_CTRL;
K3_STATUS &= ~K3_RCTRL;
break;
case XK_Alt_L:
K1_STATUS &= ~K1_ALT;
K2_STATUS &= ~K2_LALT;
break;
case XK_Alt_R:
K1_STATUS &= ~K1_ALT;
K3_STATUS &= ~K3_RALT;
break;
case XK_Scroll_Lock:
K2_STATUS &= ~K2_SLOCK;
break;
case XK_Num_Lock:
K2_STATUS &= ~K2_NLOCK;
break;
case XK_Caps_Lock:
K2_STATUS &= ~K2_CLOCK;
break;
case XK_Insert:
K2_STATUS &= ~K2_INSERT;
break;
}
return(1);
}
case KeyPress: {
static char buf[128];
KeySym ks;
int n;
int nlock = 0;
u_short scan = 0xffff;
if (!(ev->xkey.state & ShiftMask)) {
K1_STATUS &= ~K1_LSHIFT;
K1_STATUS &= ~K1_RSHIFT;
}
if (!(ev->xkey.state & ControlMask)) {
K1_STATUS &= ~K1_CTRL;
K2_STATUS &= ~K2_LCTRL;
K3_STATUS &= ~K3_RCTRL;
}
if (!(ev->xkey.state & Mod1Mask)) {
K1_STATUS &= ~K1_ALT;
K2_STATUS &= ~K2_LALT;
K3_STATUS &= ~K3_RALT;
}
if (!(ev->xkey.state & LockMask)) {
K2_STATUS &= ~K2_CLOCK;
}
n = XLookupString((XKeyEvent *)ev, buf, sizeof(buf), &ks, 0);
switch (ks) {
case XK_Shift_L:
K1_STATUS |= K1_LSHIFT;
break;
case XK_Shift_R:
K1_STATUS |= K1_RSHIFT;
break;
case XK_Control_L:
K1_STATUS |= K1_CTRL;
K2_STATUS |= K2_LCTRL;
break;
case XK_Control_R:
K1_STATUS |= K1_CTRL;
K3_STATUS |= K3_RCTRL;
break;
case XK_Alt_L:
K1_STATUS |= K1_ALT;
K2_STATUS |= K2_LALT;
break;
case XK_Alt_R:
K1_STATUS |= K1_ALT;
K3_STATUS |= K3_RALT;
break;
case XK_Scroll_Lock:
K1_STATUS ^= K1_SLOCK;
K2_STATUS |= K2_SLOCK;
break;
case XK_Num_Lock:
K1_STATUS ^= K1_NLOCK;
K2_STATUS |= K2_NLOCK;
break;
case XK_Caps_Lock:
K1_STATUS ^= K1_CLOCK;
K2_STATUS |= K2_CLOCK;
break;
case XK_Insert:
case XK_KP_Insert:
K1_STATUS ^= K1_INSERT;
K2_STATUS |= K2_INSERT;
scan = 82;
goto docode;
case XK_Escape:
scan = 1;
goto docode;
case XK_Tab:
case XK_ISO_Left_Tab:
scan = 15;
goto docode;
case XK_Return:
case XK_KP_Enter:
scan = 28;
goto docode;
case XK_Print:
scan = 55;
goto docode;
case XK_F1:
case XK_F2:
case XK_F3:
case XK_F4:
case XK_F5:
case XK_F6:
case XK_F7:
case XK_F8:
case XK_F9:
case XK_F10:
scan = ks - XK_F1 + 59;
goto docode;
case XK_KP_7:
nlock = 1;
case XK_Home:
case XK_KP_Home:
scan = 71;
goto docode;
case XK_KP_8:
nlock = 1;
case XK_Up:
case XK_KP_Up:
scan = 72;
goto docode;
case XK_KP_9:
nlock = 1;
case XK_Prior:
case XK_KP_Prior:
scan = 73;
goto docode;
case XK_KP_Subtract:
scan = 74;
goto docode;
case XK_KP_4:
nlock = 1;
case XK_Left:
case XK_KP_Left:
scan = 75;
goto docode;
case XK_KP_5:
nlock = 1;
case XK_Begin:
case XK_KP_Begin:
scan = 76;
goto docode;
case XK_KP_6:
nlock = 1;
case XK_Right:
case XK_KP_Right:
scan = 77;
goto docode;
case XK_KP_Add:
scan = 78;
goto docode;
case XK_KP_1:
nlock = 1;
case XK_End:
case XK_KP_End:
scan = 79;
goto docode;
case XK_KP_2:
nlock = 1;
case XK_Down:
case XK_KP_Down:
scan = 80;
goto docode;
case XK_KP_3:
nlock = 1;
case XK_Next:
case XK_KP_Next:
scan = 81;
goto docode;
case XK_KP_0:
nlock = 1;
/* case XK_Insert: This is above */
scan = 82;
goto docode;
case XK_KP_Decimal:
nlock = 1;
scan = 83;
goto docode;
case XK_Delete:
case XK_KP_Delete:
scan = flipdelete ? 14 : 83;
goto docode;
case XK_BackSpace:
scan = flipdelete ? 83 : 14;
goto docode;
case XK_F11:
scan = 87;
goto docode;
case XK_F12:
scan = 88;
goto docode;
case XK_KP_Divide:
scan = Ascii2Scan['/'];
goto docode;
case XK_KP_Multiply:
scan = Ascii2Scan['*'];
goto docode;
default:
if ((K1_STATUS&(K1_ALT|K1_CTRL)) == (K1_ALT|K1_CTRL)) {
if (ks == 'T' || ks == 't') {
tmode ^= 1;
if (!tmode)
resettrace((regcontext_t *)&saved_sigframe->
sf_uc.uc_mcontext);
break;
}
if (ks == 'R' || ks == 'r') {
kill(getpid(), SIGALRM); /* redraw */
break;
}
}
if (ks < ' ' || ks > '~')
break;
scan = Ascii2Scan[ks];
docode:
if (nlock)
scan |= 0x100;
if ((scan & ~0x100) > 88) {
scan = 0xffff;
break;
}
if ((K1_STATUS & K1_SHIFT) || (scan & 0x100)) {
scan = ScanCodes[scan & 0xff].shift;
} else if (K1_STATUS & K1_CTRL) {
scan = ScanCodes[scan & 0xff].ctrl;
} else if (K1_STATUS & K1_ALT) {
scan = ScanCodes[scan & 0xff].alt;
} else
scan = ScanCodes[scan & 0xff].base;
break;
}
if (scan != 0xffff) {
break_code = scan >> 8;
KbdWrite(scan);
}
return(1);
}
default:
break;
}
return(0);
}
#endif
void
tty_move(int r, int c)
{
row = r;
col = c;
SetVREGCur();
}
void
tty_report(int *r, int *c)
{
*r = row;
*c = col;
}
void
tty_flush()
{
K_NEXT = K_FREE = K_BUFSTARTP;
}
void
tty_index(int scroll)
{
int i;
if (row > (height - 1))
row = 0;
else if (++row >= height) {
row = height - 1;
if (scroll) {
memcpy(vmem, &vmem[width], 2 * width * (height - 1));
for (i = 0; i < width; ++i)
vmem[(height - 1) * width + i] = vattr | ' ';
}
}
SetVREGCur();
}
void
tty_write(int c, int attr)
{
if (attr == TTYF_REDIRECT) {
if (redirect1) {
write(1, &c, 1);
return;
}
attr = -1;
}
if (capture_fd >= 0) {
char cc = c;
write(capture_fd, &cc, 1);
}
c &= 0xff;
switch (c) {
case 0x07:
if (xmode) {
#ifndef NO_X
XBell(dpy, 0);
#endif
} else
write(1, "\007", 1);
break;
case 0x08:
if (row > (height - 1) || col > width)
break;
if (col > 0)
--col;
vmem[row * width + col] &= 0xff00;
break;
case '\t':
if (row > (height - 1))
row = 0;
col = (col + 8) & ~0x07;
if (col > width) {
col = 0;
tty_index(1);
}
break;
case '\r':
col = 0;
break;
case '\n':
tty_index(1);
break;
default:
if (col >= width) {
col = 0;
tty_index(1);
}
if (row > (height - 1))
row = 0;
if (attr >= 0)
vmem[row * width + col] = attr & 0xff00;
else
vmem[row * width + col] &= 0xff00;
vmem[row * width + col++] |= c;
break;
}
SetVREGCur();
}
void
tty_rwrite(int n, int c, int attr)
{
u_char srow, scol;
c &= 0xff;
#ifndef NO_X
if (VGA_ATC[ATC_ModeCtrl] & 1) {
tty_rwrite_graphics(n, c, attr);
return;
}
#endif
srow = row;
scol = col;
while (n--) {
if (col >= width) {
col = 0;
tty_index(0);
}
if (row > (height - 1))
row = 0;
if (attr >= 0)
vmem[row * width + col] = attr & 0xff00;
else
vmem[row * width + col] &= 0xff00;
vmem[row * width + col++] |= c;
}
row = srow;
col = scol;
SetVREGCur();
}
#ifndef NO_X
/* Write a character in graphics mode. Note that the text is put at *text*
coordinates. */
static void
tty_rwrite_graphics(int n, int c, int attr)
{
u_int8_t srow, scol;
int ht = height / CharHeight;
int wd = width / 8;
srow = row;
scol = col;
while (n--) {
if (col >= wd) {
col = 0;
/* tty_index(0); *//* scroll up if last line is filled */
}
if (row > (ht - 1))
row = 0;
putchar_graphics(row * wd * CharHeight + col, c, attr);
col++;
}
row = srow;
col = scol;
SetVREGCur();
return;
}
/* Put the character together from its pixel representation in 'font8xXX[]'
and write it to 'vram'. The attribute byte gives the desired color; if bit
7 is set, the pixels are XOR'd with the underlying color(s).
XXX This must be updated for the 256 color modes. */
static void
putchar_graphics(int xy, int c, int attr)
{
int i, j;
u_int8_t cline;
u_int8_t *cpos;
/* get char position in the pixel representation */
cpos = (u_int8_t *)(0xC3000 + c * CharHeight);
for (i = 0; i < CharHeight; i++) {
cline = cpos[i];
for (j = 0; j < 4; j++) {
if (attr & 0x8000) {
/* XOR */
if (attr & (0x0100 << j))
vram[xy + i * width / 8 + j * 0x10000] ^= cline;
} else {
/* replace */
if (attr & (0x0100 << j))
vram[xy + i * width / 8 + j * 0x10000] &= ~cline;
else
vram[xy + i * width / 8 + j * 0x10000] |= cline;
}
}
}
return;
}
#endif
void tty_pause()
{
sigset_t set;
sigprocmask(0, 0, &set);
sigdelset(&set, SIGIO);
sigdelset(&set, SIGALRM);
sigsuspend(&set);
}
static int nextchar = 0;
int
tty_read(REGISTERS, int flag)
{
int r;
if ((r = nextchar) != 0) {
nextchar = 0;
return(r & 0xff);
}
if ((flag & TTYF_REDIRECT) && redirect0) {
char c;
if (read(STDIN_FILENO, &c, 1) != 1)
return(-1);
if (c == '\n')
c = '\r';
return(c);
}
if (KbdEmpty()) {
if (flag & TTYF_BLOCK) {
while (KbdEmpty())
tty_pause();
} else {
return(-1);
}
}
r = KbdRead();
if ((r & 0xff) == 0)
nextchar = r >> 8;
r &= 0xff;
if (flag & TTYF_CTRL) {
if (r == 3) {
/*
* XXX - Not quite sure where we should return, maybe not
* all the way to the user, but...
*/
if (ivec[0x23] && (ivec[0x23] >> 16) != 0xF000) {
fake_int(REGS, 0x23);
R_EIP = R_EIP - 2;
return(-2);
}
}
}
if (flag & TTYF_ECHO) {
if ((flag & TTYF_ECHONL) && (r == '\n' || r == '\r')) {
tty_write('\r', -1);
tty_write('\n', -1);
} else
tty_write(r, -1);
}
return(r & 0xff);
}
int
tty_peek(REGISTERS, int flag)
{
int c;
if (c == nextchar)
return(nextchar & 0xff);
if (KbdEmpty()) {
if (flag & TTYF_POLL) {
sleep_poll();
if (KbdEmpty())
return(0);
} else if (flag & TTYF_BLOCK) {
while (KbdEmpty())
tty_pause();
} else
return(0);
}
c = KbdPeek();
if ((c & 0xff) == 3) {
/*
* XXX - Not quite sure where we should return, maybe not
* all the way to the user, but...
*/
if (ivec[0x23] && (ivec[0x23] >> 16) != 0xF000) {
fake_int(REGS, 0x23);
R_EIP = R_EIP - 2;
return(-2);
}
}
return(0xff);
}
int
tty_state()
{
return(K1_STATUS);
}
int
tty_estate()
{
int state = 0;
if (K2_STATUS & K2_SYSREQ)
state |= 0x80;
if (K2_STATUS & K2_CLOCK)
state |= 0x40;
if (K2_STATUS & K2_NLOCK)
state |= 0x20;
if (K2_STATUS & K2_SLOCK)
state |= 0x10;
if (K3_STATUS & K3_RALT)
state |= 0x08;
if (K3_STATUS & K3_RCTRL)
state |= 0x04;
if (K2_STATUS & K2_LALT)
state |= 0x02;
if (K2_STATUS & K2_LCTRL)
state |= 0x01;
return(state);
}
static int
inrange(int a, int n, int x)
{
return(a < n ? n : a > x ? x : a);
}
void
tty_scroll(int sr, int sc, int er, int ec, int n, int attr)
{
int i, j;
sr = inrange(sr, 0, height);
er = inrange(er, 0, height);
sc = inrange(sc, 0, width);
ec = inrange(ec, 0, width);
if (sr > er || sc > ec)
return;
++er;
++ec;
attr &= 0xff00;
attr |= ' ';
if (n > 0 && n < er - sr) {
for (j = sr; j < er - n; ) {
memcpy(&vmem[j * width + sc],
&vmem[(j + n) * width + sc],
sizeof(vmem[0]) * (ec - sc));
++j;
}
} else
n = er - sr;
for (j = er - n; j < er; ) {
for (i = sc; i < ec; ++i)
vmem[j * width + i] = attr;
++j;
}
}
void
tty_rscroll(int sr, int sc, int er, int ec, int n, int attr)
{
int i, j;
sr = inrange(sr, 0, height);
er = inrange(er, 0, height);
sc = inrange(sc, 0, width);
ec = inrange(ec, 0, width);
if (sr > er || sc > ec)
return;
++er;
++ec;
attr &= 0xff00;
attr |= ' ';
if (n > 0 && n < er - sr) {
for (j = er; j > sr + n; ) {
--j;
memcpy(&vmem[j * width + sc],
&vmem[(j - n) * width + sc],
sizeof(vmem[0]) * (ec - sc));
}
} else
n = er - sr;
for (j = sr + n; j > sr; ) {
--j;
for (i = sc; i < ec; ++i)
vmem[j * width + i] = attr;
}
}
int
tty_char(int r, int c)
{
if (r == -1)
r = row;
if (c == -1)
c = col;
r = inrange(r, 0, height);
c = inrange(c, 0, width);
return(vmem[r * width + c]);
}
int
KbdEmpty()
{
return(K_NEXT == K_FREE);
}
void
KbdWrite(u_short code)
{
int kf;
kf = K_FREE + 2;
if (kf == K_BUFENDP)
kf = K_BUFSTARTP;
if (kf == K_NEXT) {
#ifndef NO_X
XBell(dpy, 0);
#endif
return;
}
K_BUF(K_FREE) = code;
K_FREE = kf;
}
u_short
KbdRead()
{
int kf = K_NEXT;
K_NEXT = K_NEXT + 2;
if (K_NEXT == K_BUFENDP)
K_NEXT = K_BUFSTARTP;
return(K_BUF(kf));
}
u_short
KbdPeek()
{
return(K_BUF(K_NEXT));
}
void
kbd_init()
{
u_long vec;
define_input_port_handler(0x60, inb_port60);
K_BUFSTARTP = 0x1e; /* Start of keyboard buffer */
K_BUFENDP = 0x3e; /* End of keyboard buffer */
K_NEXT = K_FREE = K_BUFSTARTP;
vec = insert_hardint_trampoline();
ivec[0x09] = vec;
register_callback(vec, int09, "int 09");
return;
}
void
kbd_bios_init()
{
BIOSDATA[0x96] = 0x10; /* MF II kbd, 101 keys */
K1_STATUS = 0;
K2_STATUS = 0;
K3_STATUS = 0;
K4_STATUS = 0;
}
#ifndef NO_X
/* Calculate 16 bit RGB values for X from the 6 bit DAC values and the
palette. This works for 16 and 256 color modes, although we don't really
support the latter yet. */
static void
dac2rgb(XColor *color, int i)
{
int n, m;
/* 256 colors are easy; just take the RGB values from the DAC and
shift left. For the pedants: multiplication with 65535./63. and
rounding makes a difference of less than two percent. */
if (VGA_ATC[ATC_ModeCtrl] & 0x40) {
color->red = dac_rgb[i].red << 10;
color->green = dac_rgb[i].green << 10;
color->blue = dac_rgb[i].blue << 10;
return;
}
/* For the 16 color modes, check bit 7 of the Mode Control register in
the ATC. If set, we take bits 0-3 of the Color Select register and
bits 0-3 of the palette register 'i' to build the index into the
DAC table; otherwise, bits 2 and 3 of the CS reg and bits 0-5 of
the palette register are used. Note that the entries in 'palette[]'
are supposed to be already masked to 6 bits. */
if (VGA_ATC[ATC_ModeCtrl] & 0x80) {
n = VGA_ATC[ATC_ColorSelect] & 0x0f;
m = palette[i] & 0x0f;
} else {
n = VGA_ATC[ATC_ColorSelect] & 0x0c;
m = palette[i];
}
color->red = dac_rgb[16*n + m].red << 10;
color->green = dac_rgb[16*n + m].green << 10;
color->blue = dac_rgb[16*n + m].blue << 10;
}
#endif
/* Get a connection to the X server and create the window. */
void
init_window()
{
#ifndef NO_X
XGCValues gcv;
int i;
{
/*
* Arg... I can no longer change X's fd out from under it.
* Open up all the available fd's, leave 3 behind for X
* to play with, open X and then release all the other fds
*/
int nfds = sysconf(_SC_OPEN_MAX);
int *fds = malloc(sizeof(int) * nfds);
i = 0;
if (fds)
for (i = 0; i < nfds && (i == 0 || fds[i-1] < 63); ++i)
if ((fds[i] = open(_PATH_DEVNULL, 0)) < 0)
break;
/*
* Leave 3 fds behind for X to play with
*/
if (i > 0) close(fds[--i]);
if (i > 0) close(fds[--i]);
if (i > 0) close(fds[--i]);
dpy = XOpenDisplay(NULL);
while (i > 0)
close(fds[--i]);
}
if (dpy == NULL)
err(1, "Could not open display ``%s''\n", XDisplayName(NULL));
xfd = ConnectionNumber(dpy);
_RegisterIO(xfd, video_async_event, 0, Failure);
if (debug_flags & D_DEBUGIN)
_RegisterIO(0, debug_event, 0, Failure);
/* Create window, but defer setting a size and GC. */
win = XCreateSimpleWindow(dpy, DefaultRootWindow(dpy), 0, 0,
1, 1, 2, black, black);
gcv.foreground = white;
gcv.background = black;
gc = XCreateGC(dpy, win, GCForeground | GCBackground, &gcv);
gcv.foreground = 1;
gcv.background = 0;
gcv.function = GXxor;
cgc = XCreateGC(dpy, win, GCForeground|GCBackground|GCFunction, &gcv);
if (raw_kbd) {
XSelectInput(dpy, win, ExposureMask | ButtonPressMask
| ButtonReleaseMask | PointerMotionMask );
} else {
XSelectInput(dpy, win, KeyReleaseMask | KeyPressMask |
ExposureMask | ButtonPressMask
| ButtonReleaseMask | PointerMotionMask );
}
XStoreName(dpy, win, "DOS");
/* Get the default visual and depth for later use. */
depth = DefaultDepth(dpy, DefaultScreen(dpy));
visual = DefaultVisual(dpy, DefaultScreen(dpy));
prepare_lut();
#if 0
/* While we are developing the graphics code ... */
call_on_quit(write_vram, NULL);
#endif
#endif
}
void
load_font()
{
#ifndef NO_X
XGCValues gcv;
if (!xfont)
xfont = FONTVGA;
font = XLoadQueryFont(dpy, xfont);
if (font == NULL)
font = XLoadQueryFont(dpy, FONTVGA);
if (font == NULL)
err(1, "Could not open font ``%s''\n", xfont);
gcv.font = font->fid;
XChangeGC(dpy, gc, GCFont, &gcv);
FW = font->max_bounds.width;
FH = font->max_bounds.ascent + font->max_bounds.descent;
FD = font->max_bounds.descent;
/* Put the pixel representation at c000:3000. */
switch (CharHeight) {
case 8:
memcpy((void *)0xc3000, font8x8, sizeof(font8x8));
break;
case 14:
memcpy((void *)0xc3000, font8x14, sizeof(font8x14));
break;
case 16:
memcpy((void *)0xc3000, font8x16, sizeof(font8x16));
break;
default:
err(1, "load_font: CharHeight = %d?", CharHeight);
}
return;
#endif
}
/* Get a new, or resize an old XImage as canvas for the graphics display. */
void
get_ximage()
{
#ifndef NO_X
if (xi != NULL)
XFree(xi);
xi = XCreateImage(dpy, visual, depth, ZPixmap, 0, NULL,
width, height, 32, 0);
if (xi == NULL)
err(1, "Could not get ximage");
xi->data = malloc(width * height * depth / 8);
if (xi->data == NULL) {
XDestroyImage(xi);
err(1, "Could not get memory for ximage data");
}
return;
#endif
}
/* Get memory for the text line buffer. */
void
get_lines()
{
int i;
if (lines == NULL) {
lines = (TextLine *)malloc(sizeof(TextLine) * height);
if (lines == NULL)
err(1, "Could not allocate data structure for text lines\n");
for (i = 0; i < height; ++i) {
lines[i].max_length = width;
lines[i].data = (u_short *)malloc(width * sizeof(u_short));
if (lines[i].data == NULL)
err(1, "Could not allocate data structure for text lines\n");
lines[i].changed = 1;
}
} else {
lines = (TextLine *)realloc(lines, sizeof(TextLine) * height);
if (lines == NULL)
err(1, "Could not allocate data structure for text lines\n");
for (i = 0; i < height; ++i) {
lines[i].max_length = width;
lines[i].data = (u_short *)realloc(lines[i].data,
width * sizeof(u_short));
if (lines[i].data == NULL)
err(1, "Could not allocate data structure for text lines\n");
lines[i].changed = 1;
}
}
}
#ifndef NO_X
/* Prepare the LUT for the VRAM -> XImage conversion. */
static void
prepare_lut()
{
int i, j, k;
for (i = 0; i < 4; i++) {
for (j = 0; j < 256; j++) {
for (k = 0; k < 8; k++) {
lut[i][j][7 - k] = ((j & (1 << k)) ? (1 << i) : 0);
}
}
}
return;
}
#endif
/* Resize the window, using information from 'vga_status[]'. This function is
called after a mode change. */
void
resize_window()
{
#ifndef NO_X
XSizeHints *sh;
vmode_t vmode;
sh = XAllocSizeHints();
if (sh == NULL)
err(1, "Could not get XSizeHints structure");
#endif
width = DpyCols;
height = DpyRows + 1;
#ifndef NO_X
vmode = vmodelist[find_vmode(VideoMode)];
if (vmode.type == TEXT) {
sh->base_width = FW * width + 4;
sh->base_height = FH * height + 4;
sh->base_width += 4;
sh->base_height += 4;
} else {
width *= 8;
height *= CharHeight;
sh->base_width = width;
sh->base_height = height;
}
sh->min_width = sh->max_width = sh->base_width;
sh->min_height = sh->max_height = sh->base_height;
sh->flags = USSize | PMinSize | PMaxSize | PSize;
debug(D_VIDEO, "VGA: Set window size %dx%d\n",
sh->base_width, sh->base_height);
XSetWMNormalHints(dpy, win, sh);
XResizeWindow(dpy, win, sh->base_width, sh->base_height);
XMapWindow(dpy, win);
XFlush(dpy);
XFree(sh);
return;
#endif
}
/* Calculate 'pixels[]' from the current DAC table and palette.
To do: do not use 'pixels[]', use an array of 'XColor's which we can
allocate and free on demand. Install a private colormap if necessary. */
void
update_pixels()
{
#ifndef NO_X
int i;
/* We support only 16 colors for now. */
for (i = 0; i < 16; i++) {
XColor color;
dac2rgb(&color, i);
if (XAllocColor(dpy,
DefaultColormap(dpy, DefaultScreen(dpy)), &color)) {
pixels[i] = color.pixel;
} else if (i < 7)
pixels[i] = BlackPixel(dpy, DefaultScreen(dpy));
else
pixels[i] = WhitePixel(dpy, DefaultScreen(dpy));
}
#endif
}
void
write_vram(void *arg)
{
int fd;
if ((fd = open("vram", O_WRONLY | O_CREAT, 0644)) == -1)
err(1, "Can't open vram file");
(void)write(fd, (void *)vram, 256 * 1024);
return;
}
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