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Rev | Author | Line No. | Line |
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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 | } |