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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 54 | pj | 1 | |
| 2 | |||
| 3 | /* Register indices into mode state array. */ |
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| 4 | |||
| 5 | #define VGA_CRTC_COUNT 24 |
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| 6 | #define VGA_ATC_COUNT 21 |
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| 7 | #define VGA_GRAPHICS_COUNT 9 |
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| 8 | #define VGA_SEQUENCER_COUNT 5 |
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| 9 | |||
| 10 | #define VGA_CRTC_OFFSET 0 /* 24 registers */ |
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| 11 | #define VGA_ATC_OFFSET 24 /* 21 registers */ |
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| 12 | #define VGA_GRAPHICS_OFFSET 45 /* 9 registers. */ |
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| 13 | #define VGA_SEQUENCER_OFFSET 54 /* 5 registers. */ |
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| 14 | #define VGA_MISCOUTPUT 59 /* (single register) */ |
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| 15 | #define VGA_TOTAL_REGS 60 |
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| 16 | |||
| 17 | /* Total of 60 registers. */ |
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| 18 | |||
| 19 | #define VGAREG_CR(i) (i) |
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| 20 | #define VGAREG_AR(i) (i + VGA_ATC_OFFSET) |
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| 21 | #define VGAREG_GR(i) (i + VGA_GRAPHICS_OFFSET) |
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| 22 | #define VGAREG_SR(i) (i + VGA_SEQUENCER_OFFSET) |
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| 23 | |||
| 24 | #define VGA_CR0 VGAREG_CR(0x00) |
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| 25 | #define VGA_CR1 VGAREG_CR(0x01) |
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| 26 | #define VGA_CR2 VGAREG_CR(0x02) |
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| 27 | #define VGA_CR3 VGAREG_CR(0x03) |
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| 28 | #define VGA_CR4 VGAREG_CR(0x04) |
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| 29 | #define VGA_CR5 VGAREG_CR(0x05) |
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| 30 | #define VGA_CR6 VGAREG_CR(0x06) |
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| 31 | #define VGA_CR7 VGAREG_CR(0x07) |
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| 32 | #define VGA_CR8 VGAREG_CR(0x08) |
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| 33 | #define VGA_CR9 VGAREG_CR(0x09) |
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| 34 | #define VGA_CRA VGAREG_CR(0x0A) |
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| 35 | #define VGA_CRB VGAREG_CR(0x0B) |
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| 36 | #define VGA_CRC VGAREG_CR(0x0C) |
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| 37 | #define VGA_CRD VGAREG_CR(0x0D) |
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| 38 | #define VGA_CRE VGAREG_CR(0x0E) |
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| 39 | #define VGA_CRF VGAREG_CR(0x0F) |
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| 40 | #define VGA_CR10 VGAREG_CR(0x10) |
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| 41 | #define VGA_CR11 VGAREG_CR(0x11) |
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| 42 | #define VGA_CR12 VGAREG_CR(0x12) |
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| 43 | #define VGA_CR13 VGAREG_CR(0x13) |
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| 44 | #define VGA_SCANLINEOFFSET VGAREG_CR(0x13) |
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| 45 | #define VGA_CR14 VGAREG_CR(0x14) |
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| 46 | #define VGA_CR15 VGAREG_CR(0x15) |
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| 47 | #define VGA_CR16 VGAREG_CR(0x16) |
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| 48 | #define VGA_CR17 VGAREG_CR(0x17) |
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| 49 | #define VGA_CR18 VGAREG_CR(0x18) |
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| 50 | |||
| 51 | #define VGA_AR0 VGAREG_AR(0x00) |
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| 52 | #define VGA_AR10 VGAREG_AR(0x10) |
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| 53 | #define VGA_AR11 VGAREG_AR(0x11) |
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| 54 | #define VGA_AR12 VGAREG_AR(0x12) |
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| 55 | #define VGA_AR13 VGAREG_AR(0x13) |
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| 56 | #define VGA_AR14 VGAREG_AR(0x14) |
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| 57 | |||
| 58 | #define VGA_GR0 VGAREG_GR(0x00) |
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| 59 | #define VGA_GR1 VGAREG_GR(0x01) |
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| 60 | #define VGA_GR2 VGAREG_GR(0x02) |
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| 61 | #define VGA_GR3 VGAREG_GR(0x03) |
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| 62 | #define VGA_GR4 VGAREG_GR(0x04) |
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| 63 | #define VGA_GR5 VGAREG_GR(0x05) |
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| 64 | #define VGA_GR6 VGAREG_GR(0x06) |
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| 65 | #define VGA_GR7 VGAREG_GR(0x07) |
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| 66 | #define VGA_GR8 VGAREG_GR(0x08) |
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| 67 | |||
| 68 | #define VGA_SR0 VGAREG_SR(0x00) |
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| 69 | #define VGA_SR1 VGAREG_SR(0x01) |
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| 70 | #define VGA_SR2 VGAREG_SR(0x02) |
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| 71 | #define VGA_SR3 VGAREG_SR(0x03) |
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| 72 | #define VGA_SR4 VGAREG_SR(0x04) |
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| 73 | |||
| 74 | |||
| 75 | /* |
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| 76 | * Set the bits bytemask in variable bytevar with the value of bits |
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| 77 | * valuemask in value (masks must match, but may be shifted relative |
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| 78 | * to eachother). With proper masks, should optimize into shifts. |
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| 79 | */ |
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| 80 | |||
| 81 | #define SETBITSFROMVALUE(bytevar, bytemask, value, valuemask) \ |
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| 82 | if (valuemask > bytemask) \ |
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| 83 | bytevar = (bytevar & (~(unsigned char)bytemask)) \ |
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| 84 | | (((value) & valuemask) / (valuemask / bytemask)); \ |
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| 85 | else \ |
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| 86 | bytevar = (bytevar & (~(unsigned char)bytemask)) \ |
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| 87 | | (((value) & valuemask) * (bytemask / valuemask)); |
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| 88 | |||
| 89 | /* |
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| 90 | * Set bits bytemask in bytevar, with value bits (no shifting). |
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| 91 | */ |
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| 92 | |||
| 93 | #define SETBITS(bytevar, bytemask, bits) \ |
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| 94 | bytevar = (bytevar & (~(unsigned char)bytemask)) + bits; |
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| 95 | |||
| 96 | #define min(x, y) ((x) < (y) ? (x) : (y)) |
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| 97 | #define LIMIT(var, lim) if (var > lim) var = lim; |
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| 98 | |||
| 99 | |||
| 100 | /* Prototypes of functions defined in vgaregs.c. */ |
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| 101 | |||
| 102 | void __svgalib_setup_VGA_registers( |
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| 103 | unsigned char *moderegs, |
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| 104 | ModeTiming * modetiming, |
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| 105 | ModeInfo * modeinfo |
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| 106 | ); |
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| 107 | |||
| 108 | #define __svgalib_inGR __svgalib_ingra |
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| 109 | #define __svgalib_outGR __svgalib_outgra |
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| 110 | #define __svgalib_outbGR __svgalib_outgra |
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| 111 | #define __svgalib_inSR __svgalib_inseq |
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| 112 | #define __svgalib_outSR __svgalib_outseq |
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| 113 | #define __svgalib_outbSR __svgalib_outseq |
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| 114 | #define __svgalib_inCR __svgalib_incrtc |
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| 115 | #define __svgalib_outCR __svgalib_outcrtc |
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| 116 | #define __svgalib_outbCR __svgalib_outcrtc |