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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 54 | pj | 1 | /* |
| 2 | * normal.c: |
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| 3 | * |
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| 4 | * RAMDAC definition for normal VGA DAC. |
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| 5 | * Max dot clock is set at 80 MHz. |
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| 6 | */ |
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| 7 | |||
| 8 | #include <stdlib.h> |
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| 9 | //#include <stdio.h> |
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| 10 | #include "libvga.h" |
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| 11 | |||
| 12 | #include "timing.h" |
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| 13 | #include "vgaregs.h" |
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| 14 | #include "driver.h" /* for __svgalib_driver_report */ |
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| 15 | #include "ramdac.h" |
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| 16 | |||
| 17 | #ifdef INCLUDE_NORMAL_DAC_TEST |
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| 18 | static int normal_dac_probe(void) |
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| 19 | { |
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| 20 | return 1; |
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| 21 | } |
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| 22 | #else |
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| 23 | #define normal_dac_probe 0 |
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| 24 | #endif |
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| 25 | |||
| 26 | #ifdef INCLUDE_NORMAL_DAC |
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| 27 | static void normal_dac_init(void) |
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| 28 | { |
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| 29 | if (__svgalib_driver_report) |
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| 30 | printk(KERN_INFO "svgalib: Using Normal VGA RAMDAC.\n"); |
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| 31 | } |
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| 32 | |||
| 33 | static int normal_dac_map_clock(int bpp, int pixelclock) |
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| 34 | { |
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| 35 | return pixelclock; |
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| 36 | } |
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| 37 | |||
| 38 | static int normal_dac_map_horizontal_crtc(int bpp, int pixelclock, int htiming) |
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| 39 | { |
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| 40 | return htiming; |
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| 41 | } |
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| 42 | |||
| 43 | static void normal_dac_savestate(unsigned char *regs) |
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| 44 | { |
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| 45 | } |
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| 46 | |||
| 47 | static void normal_dac_restorestate(const unsigned char *regs) |
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| 48 | { |
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| 49 | } |
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| 50 | |||
| 51 | static void normal_dac_initializestate(unsigned char *regs, int bpp, int colormode, |
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| 52 | int pixelclock) |
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| 53 | { |
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| 54 | /* Nothing to do. */ |
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| 55 | } |
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| 56 | |||
| 57 | static void normal_dac_qualify_cardspecs(CardSpecs * cardspecs, int dacspeed) |
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| 58 | { |
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| 59 | dacspeed = __svgalib_setDacSpeed(dacspeed, 80000); |
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| 60 | cardspecs->maxPixelClock4bpp = dacspeed; |
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| 61 | cardspecs->maxPixelClock8bpp = dacspeed; |
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| 62 | cardspecs->maxPixelClock16bpp = 0; |
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| 63 | cardspecs->maxPixelClock24bpp = 0; |
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| 64 | cardspecs->maxPixelClock32bpp = 0; |
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| 65 | cardspecs->mapClock = normal_dac_map_clock; |
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| 66 | cardspecs->mapHorizontalCrtc = normal_dac_map_horizontal_crtc; |
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| 67 | } |
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| 68 | |||
| 69 | DacMethods __svgalib_normal_dac_methods = |
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| 70 | { |
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| 71 | NORMAL_DAC, |
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| 72 | "Normal VGA DAC", |
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| 73 | 0, |
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| 74 | normal_dac_probe, |
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| 75 | normal_dac_init, |
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| 76 | normal_dac_qualify_cardspecs, |
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| 77 | normal_dac_savestate, |
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| 78 | normal_dac_restorestate, |
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| 79 | normal_dac_initializestate, |
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| 80 | |||
| 81 | }; |
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| 82 | #endif |