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#include <ll/i386/hw-data.h>
#include <ll/i386/mem.h>
#include <ll/i386/string.h>
#include <ll/i386/x-dos.h>
#include <ll/i386/x-dosmem.h>
#include <ll/i386/cons.h>
#include <ll/sys/ll/ll-func.h>
#include "vesa.h"
VbeInfoBlock VbeInfo
; /* VBE 2.0 Informations */
DWORD vbe_screen
; /* Frame Linear Buffer Address */
char VideoModeNames
[96][40] = {
"100 - 640x400 256 colors", "101 - 640x480 256 colors", "102 - 800x600 16 colors",
"103 - 800x600 256 colors", "104 - 1024x768 16 colors", "105 - 1024x768 256 colors",
"106 - 1280x1024 16 colors", "107 - 1280x1024 256 colors", "108 - 80x60 Text Mode",
"109 - 132x25 Text Mode", "10A - 132x43 Text Mode", "10B - 132x50 Text Mode",
"10C - 132x60 Text Mode", "10D - 320x200 32,768 colors", "10E - 320x200 65,536 colors",
"10F - 320x200 16m colors", "110 - 640x480 32,768 colors", "111 - 640x480 65,536 colors",
"112 - 640x480 16m colors", "113 - 800x600 32,768 colors", "114 - 800x600 65,536 colors",
"115 - 800x600 16m colors", "116 - 1024x768 32,768 colors", "117 - 1024x768 65,536 colors",
"118 - 1024x768 16m colors", "119 - 1280x1024 32,768 colors", "11A - 1280x1024 65,536 colors",
"11B - 1280x1024 16m colors", "11C - 640x350 256 colors", "11D - 640x350 32,768 colors",
"11E - 640x400 32,768 colors", "11F - 640x350 65,536 colors", "120 - 640x400 65,536 colors",
"121 - 640x350 16m colors", "122 - 640x400 16m colors", "123 - 1600x1200 16 colors",
"124 - 1600x1200 256 colors", "125 - 1600x1200 32,768 colors", "126 - 1600x1200 65,536 colors",
"127 - 1600x1200 16m colors", "128 - 640x480 16m colors(*)", "129 - 800x600 16m colors(*)",
"12A - 1024x768 16m colors(*)", "12B - 1280x1024 16m colors(*)", "12C - 1600x1200 16m colors(*)",
"12D - 320x240 32,768 colors", "12E - 320x400 32,768 colors", "12F - 360x200 32,768 colors",
"130 - 360x240 32,768 colors", "131 - 360x400 32,768 colors", "132 - 320x240 65,536 colors",
"133 - 320x400 65,536 colors", "134 - 360x200 65,536 colors", "135 - 360x240 65,536 colors",
"136 - 360x400 65,536 colors", "137 - 320x240 16m colors", "138 - 320x400 16m colors",
"139 - name n/a", "13A - name n/a", "13B - name n/a",
"13C - name n/a", "13D - name n/a", "13E - name n/a",
"13F - name n/a", "140 - name n/a", "141 - name n/a",
"142 - 640x350 16m colors(*)", "143 - 640x400 16m colors(*)", "144 - name n/a",
"145 - name n/a", "146 - name n/a", "147 - name n/a",
"148 - name n/a", "149 - name n/a", "14A - name n/a",
"14B - name n/a", "14C - name n/a", "14D - name n/a",
"14E - name n/a", "14F - name n/a", "150 - 640x350 16 colors",
"151 - 640x400 16 colors", "152 - 640x480 16 colors", "153 - 320x200 256 colors",
"154 - 320x240 256 colors", "155 - 320x400 256 colors", "156 - 360x200 256 colors",
"157 - 360x240 256 colors", "158 - 360x400 256 colors", "159 - name n/a",
"15A - name n/a", "15B - name n/a", "15C - name n/a",
"15D - name n/a", "15E - name n/a", "15F - name n/a"
};
#define NMODES 13
static struct gmode allmodes
[NMODES
] = {
{640, 400, 640, 8, 0x4100},
{640, 480, 640, 8, 0x4101},
{800, 600, 800, 8, 0x4103},
{1024, 768, 1024, 8, 0x4105},
{640, 480, 1280, 15, 0x4110},
{800, 600, 1600, 15, 0x4113},
{1024, 768, 2048, 15, 0x4116},
{640, 480, 1280, 16, 0x4111},
{800, 600, 1600, 16, 0x4114},
{1024, 768, 2048, 16, 0x4117},
{640, 480, 1920, 24, 0x4112},
{800, 600, 2400, 24, 0x4115},
{1024, 768, 3072, 24, 0x4118}
};
int vbe_check_status
(WORD vbe_function_result
)
{
if (vbe_function_result
!= 0x004f) {
switch (vbe_function_result
) {
case 0x014f : return -1; /* VBE Generic error */
case 0x024f : return -2; /* Hardware incompatibility error */
case 0x034f : return -3; /* Unvalid function requested */
default : return -4; /* Unknown error */
}
}
return 1;
}
int vbe_modenum
(WORD x
, WORD y
, BYTE depth
)
{
int mode
, i
;
mode
= -1;
for (i
= 0; i
< NMODES
; i
++) {
if ((depth
== allmodes
[i
].
bpp) && (x
== allmodes
[i
].
xdim) && (y
== allmodes
[i
].
ydim)) {
mode
= allmodes
[i
].
modenum;
}
}
return mode
;
}
void vbe_restore_vga
(void) {
X_REGS16 inregs
, outregs
;
X_SREGS16 sregs
;
#ifndef VM86
BYTE p1
,p2
;
#endif
inregs.
x.
ax = 0x03;
#ifndef VM86
p1
= inp
(0x21);
p2
= inp
(0xA1);
outp
(0x21,0xFF);
outp
(0xA1,0xFF);
X_callBIOS
(0x10, &inregs
, &outregs
, &sregs
);
outp
(0x21,p1
);
outp
(0xA1,p2
);
#else
vm86_callBIOS
(0x10, &inregs
, &outregs
, &sregs
);
#endif
}
int vbe_getinfo
(void)
{
X_REGS16 inregs
, outregs
; /* registri normali */
X_SREGS16 sregs
; /* registri estesi */
LIN_ADDR DOSaddr
;
DWORD linearaddr
;
#ifndef VM86
BYTE p1
, p2
;
#endif
/* Allochiamo mem per il nostro blocco */
if ((DOSaddr
= DOS_alloc
(sizeof(VbeInfoBlock
))) == 0) {
/* set_text_mode ();*/
return -1;
} else {
/* linearaddr = appl2linear(DOSaddr);*/
linearaddr
= (DWORD
) DOSaddr
;
/* 0x00 = Get Vbe2.0 Info */
inregs.
x.
ax = 0x4f00;
/* Indirizzo reale del nostro blocco */
inregs.
x.
di = linearaddr
& 0x000F;
sregs.
es = ((linearaddr
& 0xFFFF0) >> 4);
sregs.
ds = ((linearaddr
& 0xFFFF0) >> 4);
/* Settiamo il VbeSignature correttamente */
VbeInfo.
VbeSignature[0] = 'V';
VbeInfo.
VbeSignature[1] = 'B';
VbeInfo.
VbeSignature[2] = 'E';
VbeInfo.
VbeSignature[3] = '2';
memcpy((void *)linearaddr
, &VbeInfo
, sizeof(VbeInfo
));
#ifndef VM86
p1
= inp
(0x21);
p2
= inp
(0xA1);
outp
(0x21,0xFF);
outp
(0xA1,0xFF);
X_callBIOS
(0x10, &inregs
, &outregs
, &sregs
);
outp
(0x21,p1
);
outp
(0xA1,p2
);
#else
vm86_callBIOS
(0x10, &inregs
, &outregs
, &sregs
);
#endif
if (vbe_check_status
(outregs.
x.
ax) < 0)
return -1;
memcpy(&VbeInfo
, (void *)linearaddr
, sizeof(VbeInfo
));
return 0;
}
}
void vbe_showmodes
(void)
{
short int modec
;
WORD list
;
LIN_ADDR VideoModeaddr
;
list
=0;
VideoModeaddr
= (LIN_ADDR
)((VbeInfo.
SupportedModesSegment<<4) + VbeInfo.
SupportedModesOffset);
cprintf
("\nList of modes supported:\n");
do {
memcpy(&modec
, VideoModeaddr
, 2);
VideoModeaddr
+= 2;
if (modec
!= -1) cprintf
(" %s ", VideoModeNames
[modec
- 0x100]);
list
++;
if (list
% 2 == 0) cprintf
("\n");
} while ((modec
!= -1) && (list
< 40));
cprintf
("\nToal modes supported: %d", list
);
}
DWORD vbe_getmodeinfo
(ModeInfoBlock
*ModeInfo
, WORD Vbe_Mode
)
{
X_REGS16 inregs
, outregs
;
X_SREGS16 sregs
;
LIN_ADDR dosaddr
;
#ifndef VM86
BYTE p1
, p2
;
#endif
if ((dosaddr
= DOS_alloc
(sizeof(ModeInfoBlock
))) == 0) {
return(-1);
}
/* 0x01 = Get Vbe Mode Info */
inregs.
x.
ax = 0x4f01;
inregs.
x.
cx = Vbe_Mode
;
inregs.
x.
di = (DWORD
)dosaddr
& 0x000F;
sregs.
es = (((DWORD
)dosaddr
& 0xFFFF0) >> 4);
sregs.
ds = (((DWORD
)dosaddr
& 0xFFFF0) >> 4);
#ifndef VM86
p1
= inp
(0x21);
p2
= inp
(0xA1);
outp
(0x21,0xFF);
outp
(0xA1,0xFF);
X_callBIOS
(0x10, &inregs
, &outregs
, &sregs
);
outp
(0x21,p1
);
outp
(0xA1,p2
);
#else
vm86_callBIOS
(0x10, &inregs
, &outregs
, &sregs
);
#endif
if (vbe_check_status
(outregs.
x.
ax) < 0) {
return -1;
}
memcpy(ModeInfo
, dosaddr
, sizeof(ModeInfoBlock
));
vbe_screen
= ModeInfo
->PhysBasePtr
;
if(vbe_screen
== -1) {
return -1;
}
return vbe_screen
;
}
DWORD vbe_getflb
(void)
{
return vbe_screen
;
}
int vbe_setmode
(WORD Vbe_Mode
)
{
X_REGS16 inregs
, outregs
;
X_SREGS16 sregs
;
#ifndef VM86
BYTE p1
, p2
;
#endif
memset (&inregs
, 0, sizeof(inregs
));
/* Set Vesa Vbe mode */
inregs.
x.
ax = 0x4f02;
inregs.
x.
bx = Vbe_Mode
;
#ifndef VM86
p1
= inp
(0x21);
p2
= inp
(0xA1);
outp
(0x21,0xFF);
outp
(0xA1,0xFF);
X_callBIOS
(0x10, &inregs
, &outregs
, &sregs
);
outp
(0x21,p1
);
outp
(0xA1,p2
);
#else
vm86_callBIOS
(0x10, &inregs
, &outregs
, &sregs
);
#endif
return 1; //vbe_check_status (outregs.x.ax);
}
WORD vbe_getbpr
(ModeInfoBlock
*ModeInfo
)
{
return ModeInfo
->BytesPerScanLine
;
}
int vbe_setbank
(ModeInfoBlock
*ModeInfo
, BYTE bank
)
{
X_REGS16 inregs
, outregs
;
X_SREGS16 sregs
;
#ifndef VM86
BYTE p1
, p2
;
#endif
memset (&inregs
, 0, sizeof(inregs
));
memset (&sregs
, 0, sizeof(sregs
));
/* Set Window */
inregs.
x.
ax = 0x4f05;
inregs.
h.
bh = 0x00;
inregs.
h.
bl = 0x00;
inregs.
x.
dx = (64 / ModeInfo
->WinGranularity
) * bank
;
#ifndef VM86
p1
= inp
(0x21);
p2
= inp
(0xA1);
outp
(0x21,0xFF);
outp
(0xA1,0xFF);
X_callBIOS
(0x10, &inregs
, &outregs
, &sregs
);
outp
(0x21,p1
);
outp
(0xA1,p2
);
#else
vm86_callBIOS
(0x10, &inregs
, &outregs
, &sregs
);
#endif
return vbe_check_status
(outregs.
x.
ax);
}
DWORD vbe_getmem
(void)
{
return (VbeInfo.
TotalMemory<<6) * 1024;
}