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Rev | Author | Line No. | Line |
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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 |