SvgaLib/obsolete/et4000/tseng3.c

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/*
** tseng3.c - get ET4000 graphics register values
** Copyright (C) 1993 Tommy Frandsen, Harm Hanemaayer, Hartmut Schirmer
**
** This program is free software;
**
** Permission is granted to any individual or institution to use, copy,
** or redistribute this executable so long as it is not modified and
** that it is not sold for profit.
**
** LIKE ANYTHING ELSE THAT'S FREE, TSENG3 IS PROVIDED AS IS AND
** COMEs WITH NO WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED.
** IN NO EVENT WILL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY DAMAGES
** RESULTING FROM THE USE OF THIS SOFTWARE.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <conio.h>
#include <dos.h>
#include <stdarg.h>
/* VGA index register ports */
#define CRT_I 0x3D4 /* CRT Controller Index (mono: 0x3B4) */
#define ATT_IW 0x3C0 /* Attribute Controller Index & Data Write Register */
#define GRA_I 0x3CE /* Graphics Controller Index */
#define SEQ_I 0x3C4 /* Sequencer Index */
#define PEL_IW 0x3C8 /* PEL Write Index */
/* VGA data register ports */
#define CRT_D 0x3D5 /* CRT Controller Data Register (mono: 0x3B5) */
#define ATT_R 0x3C1 /* Attribute Controller Data Read Register */
#define GRA_D 0x3CF /* Graphics Controller Data Register */
#define SEQ_D 0x3C5 /* Sequencer Data Register */
#define MIS_R 0x3CC /* Misc Output Read Register */
#define MIS_W 0x3C2 /* Misc Output Write Register */
#define IS1_R 0x3DA /* Input Status Register 1 (mono: 0x3BA) */
#define PEL_D 0x3C9 /* PEL Data Register */
/* VGA indexes max counts */
#define CRT_C 24 /* 24 CRT Controller Registers */
#define ATT_C 21 /* 21 Attribute Controller Registers */
#define GRA_C 9 /* 9 Graphics Controller Registers */
#define SEQ_C 5 /* 5 Sequencer Registers */
#define MIS_C 1 /* 1 Misc Output Register */
#define EXT_C 17 /* 11 SVGA Extended Registers */
/* VGA registers saving indexes */
#define CRT 0 /* CRT Controller Registers start */
#define ATT CRT+CRT_C /* Attribute Controller Registers start */
#define GRA ATT+ATT_C /* Graphics Controller Registers start */
#define SEQ GRA+GRA_C /* Sequencer Registers */
#define MIS SEQ+SEQ_C /* General Registers */
#define EXT MIS+MIS_C /* SVGA Extended Registers */
#define TOTAL EXT+EXT_C /* # or registers values */
unsigned char vga_regs[TOTAL];
static int do_all = 0;
FILE *output = NULL;
static int save_extregs;
void port_out(unsigned char value, unsigned short port)
{
asm mov dx,port
asm mov al,value
asm out dx,al
}
unsigned char port_in(unsigned short port)
{
asm mov dx,port
asm in al,dx
return (_AL);
}
int dactype(void)
{
union REGS cpu_regs;
cpu_regs.x.ax=0x10F1;
cpu_regs.x.bx=0x2EFF;
int86(0x10, &cpu_regs, &cpu_regs);
if (cpu_regs.x.ax != 0x0010)
return (-1);
else
return (cpu_regs.h.bl);
}
int read_dac(int addr)
{
inp(0x3c8);
inp(0x3c6);
inp(0x3c6);
inp(0x3c6);
inp(0x3c6);
while (addr)
--addr,inp(0x3c6);
addr = inp(0x3c6);
return addr;
}
int write_dac(int addr,int value)
{
inp(0x3c8);
inp(0x3c6);
inp(0x3c6);
inp(0x3c6);
inp(0x3c6);
while (addr)
--addr,inp(0x3c6);
outp(0x3c6,value);
return read_dac(addr);
}
int read_ext_dac(int addr)
{
write_dac(1,addr);
write_dac(2,0);
return read_dac(3);
}
void puts2(char *s) {
if (output != NULL)
fprintf(output, "%s\n", s);
while (*s != '\0') {
if (*s == '\n') putch('\r');
putch (*(s++));
}
putch('\r'); putch('\n');
}
int printf2(char *fmt, ...)
{
va_list argptr;
char str[140], *s;
int cnt;
va_start( argptr, fmt );
if (output != NULL)
vfprintf(output, fmt, argptr);
cnt = vsprintf( str, fmt, argptr );
s = str;
while (*s) {
switch (*s) {
case '\n' : putch('\r');
break;
case '\t' : cprintf("%*s", 8-((wherex()-1)&7), "");
++s;
continue;
}
putch(*(s++));
}
va_end( argptr );
return( cnt );
}
void get_dac(void)
{
int dac;
dac = dactype();
switch (dac)
{
case -1:
printf2 ("/* Dac detection BIOS call returned an error */\n");
break;
case 0:
printf2 ("/* Standard VGA dac detected */\n");
printf2 ("#define DAC_TYPE 0\n");
break;
case 1:
printf2 ("/* Sierra SC1148x HiColor dac detected */\n");
printf2 ("#define DAC_TYPE 1\n");
break;
case 2:
printf2 ("/* Diamond Speedstar 24 24bit dac or Sierra Mark2/Mark3 dac detected */\n");
break;
case 3:
printf2 ("/* AT&T ATT20c491/2 15/16/24 bit dac detected */\n");
printf2 ("#define DAC_TYPE 9\n");
break;
case 4:
printf2 ("/* AcuMos ADAC1 15/16/24 bit dac detected */\n");
break;
case 8:
printf2 ("/* Music 15/16/24 bit dac (AT&T compatible) detected */\n");
printf2 ("#define DAC_TYPE 9\n");
break;
default: { /* use alternate method */
int cmd = read_dac(0);
write_dac(0,cmd | 0x10);
if (read_ext_dac(0) == 0x44) {
printf2 ("/* SGS-Thomson STG170x 15/16/24 dac detected */\n");
save_extregs = 1;
}
else
printf2 ("/* Unknown HiColor dac (%d) detected */\n", dac);
break;
}
}
}
#define TickTime (1.0/1193182.0)
#define init_timer() do { \
asm mov al, 034h; \
asm out 043h, al; \
asm xor al, al; \
asm out 040h, al; \
asm out 040h, al; \
} while(0)
#define ReadTimer(dst) do { \
asm { mov al, 4; \
out 43h, al; \
in al, 40h; \
mov bl, al; \
in al, 40h; \
mov ah, al; \
mov al, bl; \
not ax } \
(dst) = _AX; \
} while (0);
#define _wait_(ID,VAL) \
w_##ID##1: \
asm in al, dx; \
asm test al, VAL; \
asm jne w_##ID##1; \
w_##ID##2: \
asm in al, dx; \
asm test al, VAL; \
asm je w_##ID##2
#define wait_horizontal(ID,port) do { _DX=(port); _wait_(ID##ch,8);} while(0)
#define wait_vertical(ID,port) do { _DX=(port); _wait_(ID##cv,1);} while(0)
#define __loop__(ID,port,loops,msk) do { \
register int cnt = (loops); \
_DX=(port); \
do { \
_wait_(ID,msk); \
} while (--cnt > 0); \
} while(0)
#define loop_vertical(ID,port,loops) __loop__(ID##cv,(port),(loops),1)
int interlaced(void) {
return (vga_regs[EXT+5] & 0x80) ? 1 : 0;
}
int calc_vtotal(void) {
int total;
total = (vga_regs[EXT+5]&2) ? 1024 : 0;
switch (vga_regs[CRT+7]&0x21) {
case 0x01 : total += 256; break;
case 0x20 : total += 512; break;
case 0x21 : total += 768; break;
}
total += vga_regs[CRT+6];
return total + 2;
}
double measure_horizontal(void)
{
short start, stop;
long diff;
disable();
init_timer();
wait_horizontal(mv0,0x3da);
wait_vertical(mv0,0x3da);
ReadTimer(start);
loop_vertical(mv, 0x3da, 200);
ReadTimer(stop);
enable();
diff = stop-start;
if (diff < 0) diff += 65536L;
return 200/(TickTime*((double)diff));
}
#define ASK_CONT 0
#define ASK_SKIP 1
#define ASK_ALL 2
int ask(char *expl)
{
int ch;
cprintf("\r\n\n"
"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͻ\r\n"
"<EFBFBD> WARNING: Improper use of this program may destroy your monitor <20>\r\n"
"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͼ\r\n\n"
"%s\r\n\n"
"Type SPACE to skip, ESC to cancel program, RETURN to continue ... ",
expl);
do {
ch = getch();
if (ch == 27) exit(1);
switch (ch) {
case 27 : exit(1);
case ' ' : return ASK_SKIP;
case 'A' : return ASK_ALL;
case '\r': return ASK_CONT;
}
} while (1);
}
void get_clocks(void)
{
union REGS cpu_regs;
unsigned char temp;
int i;
double clock[8], horzbase, baseosc;
if (!do_all)
switch (ask("Measure clock frequencies")) {
case ASK_SKIP : return;
case ASK_ALL : do_all = 1; break;
default : break;
}
cpu_regs.h.ah = 0x00;
cpu_regs.h.al = 0x13;
int86(0x10, &cpu_regs, &cpu_regs);
port_out(0x03, 0x3BF); /* Unprotect ET4000 registers */
port_out(0xA0, 0x3D8);
port_out(0x00, ATT_IW); /* disable video */
port_out(7, SEQ_I); /* devide by 4 */
temp = port_in(SEQ_D);
port_out(temp | 0x41, SEQ_D);
baseosc = 25175; /* Base frequency */
switch (temp & 0x41) {
case 0x41 : baseosc *= 4; break;
case 0x40 : baseosc *= 2; break;
}
clock[0] = baseosc;
clock[1] = baseosc * 28322.0 / 25175.0;
horzbase = measure_horizontal();
for (i=2; i < 8; ++i) {
temp = (port_in(MIS_R) & 0xF3) | ((i&3)<<2);
port_out(temp, MIS_W);
port_out(0x34, CRT_I);
temp = (port_in(CRT_D) & 0xFD) | ((i&4)>>1);
port_out(temp, CRT_D);
clock[i] = baseosc*measure_horizontal()/horzbase;
}
cpu_regs.h.ah = 0x00;
cpu_regs.h.al = 0x03;
int86(0x10, &cpu_regs, &cpu_regs);
printf2("\n#define CLOCK_VALUES {\t\\\n");
for (i = 0; i < 8; ++i)
printf2("\t/* %d */ %5.0f%s\t\\\n", i, clock[i],(i==7?"":","));
printf2("\t}\n");
}
void one_mode(int vesa_mode, int mode, int colbits, int funny_card)
{
union REGS cpu_regs;
int i, skip = 0, modeok = 0;
int x=0, y, col, size;
char resol[100], colors[100], *desc;
char *verttxt;
double vertical, horizontal;
switch (mode) {
case 0x13: x = 320; y = 200; break;
case 0x25: x = 640; y = 480; break;
case 0x29: x = 800; y = 600; break;
case 0x2d: x = 640; y = 350; break;
case 0x2e: x = 640; y = 480; break;
case 0x2f: x = 640; y = 400; break;
case 0x30: x = 800; y = 600; break;
case 0x37: x = 1024; y = 768; break;
case 0x38: x = 1024; y = 768; break;
case 0x3d: x = 1280; y = 1024; break;
default : switch (vesa_mode) {
case 0x107:
case 0x119:
case 0x11a:
case 0x11b: x = 1280; y = 1024; break;
default : return;
}
break;
}
col = (1<<colbits);
size = (int)((((unsigned long) x) * ((unsigned long) y)) >> 10);
if (col == 16) size >>= 2;
switch (colbits) {
case 15: size*=2; strcpy(colors, "32K"); desc = "HiColor "; break;
case 16: size*=2; strcpy(colors, "64K"); desc = "HiColor "; break;
case 24: size*=3; strcpy(colors, "16M"); desc = "TrueColor "; break;
default: sprintf(colors, "%d", col); desc = ""; break;
}
sprintf(resol, "%dx%dx%s", x, y, colors);
if (!do_all) {
char expl[100];
sprintf(expl, "BIOS mode 0x%2X : %s", mode, resol);
switch(ask(expl)) {
case ASK_SKIP : skip = 1; break;
case ASK_ALL : do_all = 1; break;
default : break;
}
}
if (!skip) {
/* First try VESA mode */
if (vesa_mode != 0) {
cpu_regs.x.ax = 0x4f02;
cpu_regs.x.bx = vesa_mode;
int86(0x10, &cpu_regs, &cpu_regs);
modeok = (cpu_regs.x.ax == 0x004f);
}
/* Try std ET4000 mode numbers if VESA failed */
if (!modeok && mode != 0) {
switch (colbits)
{
case 15:
case 16:
cpu_regs.x.ax=0x10F0;
cpu_regs.h.bl=mode;
break;
case 24:
switch (funny_card)
{
case 1:
cpu_regs.x.ax=0x10E0;
cpu_regs.h.bl=0x2e;
break;
case 2:
cpu_regs.x.ax=0x10f0;
cpu_regs.h.bl=0x3e;
break;
case 0:
default:
cpu_regs.x.ax=0x10F0;
cpu_regs.h.bh=mode;
cpu_regs.h.bl=0xFF;
break;
}
break;
case 0:
default:
cpu_regs.h.ah = 0x00;
cpu_regs.h.al = mode;
break;
}
int86(0x10, &cpu_regs, &cpu_regs);
modeok = !( (colbits > 8 && cpu_regs.x.ax != 0x0010)
||(colbits <=8 && cpu_regs.x.ax == mode ) );
vesa_mode = 0;
}
if (modeok) {
/* get VGA register values */
for (i = 0; i < CRT_C; i++) {
port_out(i, CRT_I);
vga_regs[CRT+i] = port_in(CRT_D);
}
for (i = 0; i < ATT_C; i++) {
if (col == 16 && i < 16)
vga_regs[ATT+i] = i;
else {
port_in(IS1_R);
port_out(i, ATT_IW);
vga_regs[ATT+i] = port_in(ATT_R);
}
}
for (i = 0; i < GRA_C; i++) {
if (i==1 && col == 16)
vga_regs[GRA+i] = 0x0F;
else {
port_out(i, GRA_I);
vga_regs[GRA+i] = port_in(GRA_D);
}
}
for (i = 0; i < SEQ_C; i++) {
port_out(i, SEQ_I);
vga_regs[SEQ+i] = port_in(SEQ_D);
}
vga_regs[MIS] = port_in(MIS_R);
/* get extended CRT registers */
for (i = 0; i < 8; i++) {
port_out(0x30+i, CRT_I);
vga_regs[EXT+i] = port_in(CRT_D);
}
port_out(0x3f , CRT_I);
vga_regs[EXT+8] = port_in(CRT_D);
/* get extended sequencer register */
port_out(7, SEQ_I);
vga_regs[EXT+9] = port_in(SEQ_D);
/* get some other ET4000 specific registers */
vga_regs[EXT+10] = port_in(0x3c3);
vga_regs[EXT+11] = port_in(0x3cd);
/* get extended attribute register */
port_in(IS1_R); /* reset flip flop */
port_out(0x16, ATT_IW);
vga_regs[EXT+12] = port_in(ATT_R);
if (save_extregs) { /* copy stg170x extended info */
vga_regs[EXT+13] = read_dac(0);
write_dac(0,vga_regs[EXT+13] | 0x10);
vga_regs[EXT+14] = read_ext_dac(3);
vga_regs[EXT+15] = read_ext_dac(4);
vga_regs[EXT+16] = read_ext_dac(5);
}
/* Measure video timing */
horizontal = measure_horizontal();
/* switch back to text mode */
cpu_regs.h.ah = 0x00;
cpu_regs.h.al = 0x03;
int86(0x10, &cpu_regs, &cpu_regs);
}
}
if (vesa_mode)
printf2("\n/* VESA %smode 0x%03X", desc, vesa_mode);
else
printf2("\n/* ET4000 %sBIOS mode 0x%02X", desc, mode);
printf2(" -- %s", resol);
if ( skip || !modeok) {
printf2(" : NOT SUPPORTED */\n");
if (size <= 1024)
printf2("#define g%s_regs DISABLE_MODE\n", resol);
return;
}
printf2(" */\n");
/* can't always treat 15 and 16 bit modes the same! */
if (colbits == 16 && !save_extregs) {
printf2("#define g%s_regs g%dx%dx32K_regs\n", resol, x, y);
return;
}
verttxt = interlaced() ? " (interlaced)" : "";
vertical = horizontal / calc_vtotal();
printf2("/* Video timing:\tVertical frequency : %4.1fHz%s\n",
vertical, verttxt);
printf2("\t\t\tHorizontal frequency : %4.1fKHz */\n", horizontal/1000.0);
printf2("static unsigned char g%s_regs[%d] = {\n ", resol, TOTAL);
for (i = 0; i < CRT_C; i++)
printf2("%s0x%02X,", (i==12?"\n ":""), vga_regs[CRT+i]);
printf2("\n ");
for (i = 0; i < ATT_C; i++)
printf2("%s0x%02X,", (i==12?"\n ":""), vga_regs[ATT+i]);
printf2("\n ");
for (i = 0; i < GRA_C; i++)
printf2("0x%02X,",vga_regs[GRA+i]);
printf2("\n ");
for (i = 0; i < SEQ_C; i++)
printf2("0x%02X,",vga_regs[SEQ+i]);
printf2("\n 0x%02X,",vga_regs[MIS]);
printf2("\n 0x%02X",vga_regs[EXT]);
for (i = 1; i < EXT_C; i++)
printf2(",%s0x%02X", (i==12?"\n ":""), vga_regs[i+EXT]);
printf2("\n};\n");
}
void usage(void) {
cputs("tseng3 <output_file> [SS24]");
exit(1);
}
void main(int argc, char* argv[])
{
int funny_card = 0;
if (argc >= 2)
output = fopen(argv[1], "w");
if (output != NULL)
fputs("/*\n ( File generated by tseng3.exe )\n\n", output);
puts2("tseng3 v1.2, Copyright (C) 1993 Tommy Frandsen, Harm Hanemaayer");
puts2("and Hartmut Schirmer\n");
puts2("Permission is granted to any individual or institution to use, copy, or");
puts2("redistribute this executable so long as it is not modified and that it is");
puts2("not sold for profit.\n");
puts2("LIKE ANYTHING ELSE THAT'S FREE, TSENG3 IS PROVIDED AS IS AND COMES WITH");
puts2("NO WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED. IN NO EVENT WILL");
puts2("THE COPYRIGHT HOLDERS BE LIABLE FOR ANY DAMAGES RESULTING FROM THE USE OF");
puts2("THIS SOFTWARE.");
if (output != NULL)
fputs("*/\n", output);
puts2("");
if (argc >= 2 && output == NULL)
usage();
if (argc>=3)
funny_card = (strcmp("SS24", argv[2]) == 0) ? 1 : 2;
get_dac();
get_clocks();
one_mode(0x10d, 0x13, 15, funny_card); /* 320x200x32K */
one_mode(0x10e, 0x13, 16, funny_card); /* 320x200x64K */
one_mode(0x10f, 0x13, 24, funny_card); /* 320x200x16M */
one_mode(0x101, 0x2e, 8, funny_card); /* 640x480x256 */
one_mode(0x110, 0x2e, 15, funny_card); /* 640x480x32K */
one_mode(0x111, 0x2e, 16, funny_card); /* 640x480x64K */
one_mode(0x112, 0x2e, 24, funny_card); /* 640x480x16M */
one_mode(0x102, 0x29, 4, funny_card); /* 800x600x16 */
one_mode(0x103, 0x30, 8, funny_card); /* 800x600x256 */
one_mode(0x113, 0x30, 15, funny_card); /* 800x600x32K */
one_mode(0x114, 0x30, 16, funny_card); /* 800x600x64K */
one_mode(0x115, 0x30, 24, funny_card); /* 800x600x16M */
one_mode(0x104, 0x37, 4, funny_card); /* 1024x768x16 */
one_mode(0x105, 0x38, 8, funny_card); /* 1024x768x256 */
one_mode(0x116, 0x38, 15, funny_card); /* 1024x768x32K */
one_mode(0x117, 0x38, 16, funny_card); /* 1024x768x64K */
one_mode(0x118, 0x38, 24, funny_card); /* 1024x768x16M */
one_mode(0x106, 0x3D, 4, funny_card); /* 1280x1024x16 */
one_mode(0x107, 0x00, 8, funny_card); /* 1280x1024x256 */
one_mode(0x119, 0x00, 15, funny_card); /* 1280x1024x32K */
one_mode(0x11a, 0x00, 16, funny_card); /* 1280x1024x64K */
one_mode(0x11b, 0x00, 24, funny_card); /* 1280x1024x16M */
puts2("\n/* --- ET4000 specific modes */\n#ifdef _DYNAMIC_ONLY_");
one_mode(0x000, 0x2d, 8, funny_card); /* 640x350x256 */
one_mode(0x000, 0x2d, 15, funny_card); /* 640x350x32K */
one_mode(0x000, 0x2d, 16, funny_card); /* 640x350x64K */
one_mode(0x000, 0x2d, 24, funny_card); /* 640x350x16M */
one_mode(0x100, 0x2f, 8, funny_card); /* 640x400x256 */
one_mode(0x000, 0x2f, 15, funny_card); /* 640x400x32K */
one_mode(0x000, 0x2f, 16, funny_card); /* 640x400x64K */
one_mode(0x000, 0x2f, 24, funny_card); /* 640x400x16M */
puts2("\n#endif /* defined(_DYNAMIC_ONLY_ALL_) */\n");
}