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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | pj | 1 | #include <ll/i386/hw-data.h> |
| 2 | #include <ll/i386/mem.h> |
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| 3 | #include <ll/i386/cons.h> |
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| 4 | #include <ll/sys/ll/ll-func.h> |
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| 5 | |||
| 635 | giacomo | 6 | #include "drivers/gd.h" |
| 2 | pj | 7 | |
| 8 | #include "drivers/s3.h" |
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| 9 | #include "drivers/trident.h" |
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| 10 | #include "drivers/vesa.h" |
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| 11 | #include "drivers/chips.h" |
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| 12 | |||
| 13 | BYTE bus, dev; |
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| 14 | ModeInfoBlock vbemi; |
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| 15 | BYTE actbank; |
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| 16 | BYTE type; |
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| 17 | |||
| 18 | DWORD flb=0; |
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| 19 | int linear; |
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| 20 | BYTE trylinear; |
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| 21 | /*BYTE gmode = FALSE;*/ |
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| 22 | |||
| 23 | #define NMODES 13 |
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| 24 | static struct gmode allmodes[NMODES] = { |
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| 25 | {640, 400, 640, 8, 0x100}, |
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| 26 | {640, 480, 640, 8, 0x101}, |
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| 27 | {800, 600, 800, 8, 0x103}, |
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| 28 | {1024, 768, 1024, 8, 0x105}, |
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| 29 | {640, 480, 1280, 15, 0x110}, |
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| 30 | {800, 600, 1600, 15, 0x113}, |
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| 31 | {1024, 768, 2048, 15, 0x116}, |
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| 32 | {640, 480, 1280, 16, 0x111}, |
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| 33 | {800, 600, 1600, 16, 0x114}, |
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| 34 | {1024, 768, 2048, 16, 0x117}, |
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| 35 | {640, 480, 1920, 24, 0x112}, |
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| 36 | {800, 600, 2400, 24, 0x115}, |
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| 37 | {1024, 768, 3072, 24, 0x118} |
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| 38 | }; |
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| 39 | static struct gmode actualmode; |
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| 40 | |||
| 41 | |||
| 42 | static int myceil(float f) |
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| 43 | { |
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| 44 | int i = (int) f; |
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| 45 | float f1 = f - i; |
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| 46 | |||
| 47 | if (f1 != 0) { |
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| 48 | return i + 1; |
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| 49 | } else { |
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| 50 | return i; |
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| 51 | } |
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| 52 | } |
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| 53 | |||
| 54 | /************************************************************************/ |
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| 55 | /* GD Common Interface */ |
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| 56 | /************************************************************************/ |
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| 57 | int gd_init(WORD flags) |
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| 58 | { |
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| 59 | memset(&actualmode, 0, sizeof(struct gmode)); |
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| 60 | type = UNKNOWN; |
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| 61 | |||
| 62 | /* VESA driver needs the V86 Mode... */ |
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| 444 | giacomo | 63 | vm86_init(); |
| 2 | pj | 64 | |
| 65 | /* First, check VESA... */ |
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| 66 | if (vbe_getinfo() == 1) { |
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| 67 | type = VESA; |
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| 68 | if (flags & NOLINEAR) { |
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| 69 | trylinear = 0; |
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| 70 | } else { |
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| 71 | trylinear = 1; |
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| 72 | } |
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| 444 | giacomo | 73 | return 1; |
| 2 | pj | 74 | } |
| 75 | |||
| 76 | /* Then, the other graph cards... Override VESA!!! */ |
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| 77 | if (trident_test() == 1) { |
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| 78 | type = TRIDENT; |
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| 79 | trylinear = 0; |
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| 80 | } |
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| 81 | |||
| 82 | if (s3_test() == 1) { |
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| 83 | type = S3; |
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| 84 | if (flags & NOLINEAR) { |
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| 85 | trylinear = 0; |
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| 86 | } else { |
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| 87 | trylinear = 1; |
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| 88 | } |
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| 89 | return 1; |
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| 90 | } |
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| 91 | |||
| 92 | if (type == UNKNOWN) { |
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| 93 | return -1; |
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| 94 | } |
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| 444 | giacomo | 95 | |
| 2 | pj | 96 | return -2; |
| 97 | } |
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| 98 | |||
| 99 | void gd_showmodeinfo(void) |
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| 100 | { |
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| 101 | cprintf("Mode number %x\n", actualmode.modenum); |
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| 102 | cprintf("MaxX: %u\n", actualmode.xdim); |
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| 103 | cprintf("MaxY: %u\n", actualmode.ydim); |
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| 104 | cprintf("BPR: %u\n", actualmode.bpr); |
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| 105 | } |
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| 106 | |||
| 107 | void gd_showinfo(void) |
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| 108 | { |
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| 109 | DWORD addr; |
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| 110 | |||
| 111 | addr = gd_getflb(); |
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| 112 | |||
| 113 | if (addr != 0) { |
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| 114 | cprintf ("\t gd: Frame Linear Buffer @ %lx (%luM)\n", |
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| 115 | addr, (addr / 0x1000000)); |
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| 116 | } |
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| 117 | |||
| 118 | if (type == VESA) { |
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| 119 | cprintf("Vesa SVGA card\n"); |
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| 120 | vbe_showinfo(); |
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| 121 | } |
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| 122 | if (type == TRIDENT) { |
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| 123 | cprintf("Trident graphic card\n"); |
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| 124 | trident_showinfo(); |
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| 125 | } |
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| 126 | |||
| 127 | if (type == S3) { |
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| 128 | cprintf("S3 graphic card\n"); |
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| 129 | s3_showinfo(); |
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| 130 | } |
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| 131 | } |
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| 132 | |||
| 133 | int gd_setmode(WORD mode) |
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| 134 | { |
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| 135 | WORD app; |
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| 136 | int i; |
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| 137 | #ifndef VM86 |
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| 138 | BYTE p1, p2; |
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| 139 | #endif |
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| 140 | |||
| 141 | if (mode == 0) { |
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| 142 | X_REGS16 inregs, outregs; |
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| 143 | X_SREGS16 sregs; |
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| 144 | |||
| 145 | if (actualmode.modenum != 0) { |
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| 146 | inregs.x.ax = 0x03; |
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| 147 | #ifndef VM86 |
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| 148 | p1 = inp(0x21); |
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| 149 | p2 = inp(0xA1); |
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| 150 | outp(0x21,0xFF); |
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| 151 | outp(0xA1,0xFF); |
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| 152 | X_callBIOS(0x10, &inregs, &outregs, &sregs); |
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| 153 | outp(0x21,p1); |
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| 154 | outp(0xA1,p2); |
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| 155 | #else |
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| 156 | vm86_callBIOS(0x10, &inregs, &outregs, &sregs); |
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| 157 | #endif |
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| 158 | } |
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| 159 | return 1; |
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| 160 | } |
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| 161 | |||
| 162 | for (i = 0; i < NMODES; i++) { |
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| 163 | if ((mode == allmodes[i].modenum)) { |
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| 164 | memcpy(&actualmode, &(allmodes[i]), sizeof(struct gmode)); |
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| 165 | } |
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| 166 | } |
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| 167 | |||
| 168 | if (type == VESA) { |
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| 444 | giacomo | 169 | |
| 2 | pj | 170 | if (vbe_getmodeinfo(&vbemi, mode) < 0) { |
| 444 | giacomo | 171 | return -1; |
| 172 | } |
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| 2 | pj | 173 | |
| 174 | app = mode; |
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| 175 | if (trylinear) { |
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| 176 | /* try linear... */ |
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| 177 | mode = mode | 0x4000; |
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| 178 | linear = TRUE; |
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| 179 | if (vbe_setmode(mode) == 1) { |
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| 180 | return linear; |
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| 181 | } |
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| 182 | } |
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| 183 | actbank = 0; |
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| 184 | Load_Write_Bank_256(0); |
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| 185 | linear = FALSE; |
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| 186 | mode = app; |
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| 187 | if (vbe_setmode(mode) < 0) { |
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| 188 | return -1; |
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| 189 | } |
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| 190 | return linear; |
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| 191 | } |
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| 192 | |||
| 193 | if (type == S3) { |
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| 194 | /* Still use VESA to open graph... */ |
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| 195 | if (vbe_getmodeinfo(&vbemi, mode) < 0) { |
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| 196 | return -1; |
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| 197 | } |
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| 198 | if (vbe_setmode(mode) < 0) { |
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| 199 | return -1; |
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| 200 | } |
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| 201 | if ((flb != 0) && trylinear) { |
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| 202 | linear = TRUE; |
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| 203 | s3_linear(flb); |
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| 204 | return TRUE; |
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| 205 | } |
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| 206 | linear = FALSE; |
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| 207 | actbank = 0; |
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| 208 | Load_Write_Bank_256(0); |
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| 209 | return FALSE; |
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| 210 | } |
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| 211 | |||
| 212 | if (type == TRIDENT) { |
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| 213 | /* Still use VESA to open graph... */ |
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| 214 | if (vbe_getmodeinfo(&vbemi, mode) < 0) { |
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| 215 | return -1; |
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| 216 | } |
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| 217 | if (vbe_setmode(mode) < 0) { |
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| 218 | return -1; |
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| 219 | } |
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| 220 | |||
| 221 | actbank = 0; |
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| 222 | Load_Write_Bank_256(0); |
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| 223 | return FALSE; |
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| 224 | } |
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| 225 | |||
| 226 | return -2; |
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| 227 | } |
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| 228 | |||
| 229 | DWORD gd_getflb(void) |
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| 230 | { |
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| 231 | if (type == VESA) { |
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| 232 | return vbe_getflb(); |
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| 233 | } |
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| 234 | if (type == S3) { |
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| 235 | return flb; |
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| 236 | } |
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| 237 | return 0; |
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| 238 | } |
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| 239 | |||
| 240 | DWORD gd_getmem(void) |
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| 241 | { |
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| 242 | if (type == VESA) { |
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| 243 | return vbe_getmem(); |
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| 244 | } |
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| 245 | if (type == S3) { |
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| 246 | return s3_getmem(); |
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| 247 | } |
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| 248 | if (type == TRIDENT) { |
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| 249 | return trident_getmem(); |
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| 250 | } |
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| 251 | |||
| 252 | return 0; |
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| 253 | } |
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| 254 | |||
| 255 | WORD gd_getbpr(void) |
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| 256 | { |
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| 257 | if (actualmode.bpr) return actualmode.bpr; |
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| 258 | return -2; |
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| 259 | } |
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| 260 | |||
| 51 | pj | 261 | int gd_getmodeinfo(grx_vga_modeinfo *m) |
| 2 | pj | 262 | { |
| 263 | if (actualmode.modenum == 0) { |
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| 264 | return -1; |
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| 265 | } |
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| 266 | |||
| 267 | m->width = actualmode.xdim; |
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| 268 | m->height = actualmode.ydim; |
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| 269 | m->bytesperpixel = (myceil((float)actualmode.bpp / 8)); |
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| 270 | /* m->colors = myexp(2, actualmode.bpp); */ |
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| 271 | m->colors = 1 << actualmode.bpp; |
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| 272 | m->linewidth = gd_getbpr(); |
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| 273 | m->maxlogicalwidth = gd_getbpr(); /* 4 the moment... */ |
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| 274 | m->startaddressrange = 0; /* don't know :( */ |
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| 275 | m->maxpixels = gd_getmem() / m->bytesperpixel; |
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| 276 | m->haveblit = 0; |
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| 277 | m->flags = 0; |
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| 278 | |||
| 279 | /* Extended fields: */ |
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| 280 | m->chiptype = type; /* Chiptype detected */ |
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| 281 | m->memory = gd_getmem(); |
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| 282 | m->linewidth_unit = 0; /* don't know :( */ |
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| 283 | if (linear) { |
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| 284 | m->linear_aperture = (LIN_ADDR)gd_getflb(); |
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| 285 | m->aperture_size = gd_getmem(); |
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| 286 | } else { |
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| 287 | m->linear_aperture = 0; |
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| 288 | m->aperture_size = 0xFFFF; |
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| 289 | } |
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| 290 | m->set_aperture_page = NULL; |
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| 291 | m->extensions = NULL; |
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| 292 | return 1; |
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| 293 | } |
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| 294 | |||
| 295 | void Load_Write_Bank_256(BYTE bank) |
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| 296 | { |
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| 297 | if (bank != actbank) { |
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| 298 | actbank = bank; |
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| 299 | if (type == VESA) { |
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| 300 | if (vbe_setbank(&vbemi, bank) < 0) |
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| 301 | ll_abort(259); |
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| 302 | } |
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| 303 | if (type == S3) { |
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| 304 | s3_setpage(bank); |
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| 305 | } |
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| 306 | if (type == TRIDENT) { |
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| 307 | trident_setpage(bank); |
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| 308 | } |
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| 309 | } |
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| 310 | } |
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| 311 | |||
| 312 | /************************************************************************/ |
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| 313 | /* BANK HANDLING FUNCS */ |
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| 314 | /************************************************************************/ |
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| 315 | |||
| 316 | LIN_ADDR start_address(WORD bpr, WORD x, WORD y) |
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| 317 | { |
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| 318 | LIN_ADDR a; |
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| 319 | |||
| 320 | a = (LIN_ADDR)(y * bpr +x); |
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| 321 | return a; |
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| 322 | } |
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| 323 | |||
| 324 | void Seg_Off_256(WORD x, WORD y, WORD pitch, WORD *offs, WORD *seg) |
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| 325 | { |
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| 326 | DWORD a; |
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| 327 | |||
| 328 | a = y * pitch + x; |
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| 329 | *offs = a & 0x0000FFFF; |
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| 330 | *seg = a >> 16; |
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| 331 | } |
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| 332 | |||
| 333 | void Seg_Off_Hi(WORD x, WORD y, WORD pitch, WORD *offs, WORD *seg) |
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| 334 | { |
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| 335 | DWORD a; |
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| 336 | |||
| 337 | a = y * pitch + x * 2; |
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| 338 | *offs = a & 0x0000FFFF; |
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| 339 | *seg = a >> 16; |
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| 340 | } |
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| 341 | |||
| 342 | int gd_modenum(WORD x, WORD y, BYTE depth) |
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| 343 | { |
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| 344 | int mode, i; |
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| 345 | |||
| 346 | mode = -1; |
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| 347 | |||
| 348 | for (i = 0; i < NMODES; i++) { |
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| 349 | if ((depth == allmodes[i].bpp) && (x == allmodes[i].xdim) && (y == allmodes[i].ydim)) { |
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| 350 | mode = allmodes[i].modenum; |
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| 351 | } else { |
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| 352 | } |
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| 353 | } |
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| 354 | |||
| 355 | if ((mode != -1) && (vbe_checkmode(mode) != -1)) |
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| 356 | return mode; |
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| 357 | return -1; |
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| 358 | } |