modedb.c

Linux环境下视频显示卡设备的驱动程序源代码

/*
 *  linux/drivers/video/modedb.c -- Standard video mode database management
 *
 *	Copyright (C) 1999 Geert Uytterhoeven
 *
 *	2001 - Documented with DocBook
 *	- Brad Douglas <[e-mail]>
 *
 *  This file is subject to the terms and conditions of the GNU General Public
 *  License. See the file COPYING in the main directory of this archive for
 *  more details.
 */

#include <linux/module.h>
#include <linux/fb.h>

#undef DEBUG

#define name_matches(v, s, l) \
    ((v).name && !strncmp((s), (v).name, (l)) && strlen((v).name) == (l))
#define res_matches(v, x, y) \
    ((v).xres == (x) && (v).yres == (y))

#ifdef DEBUG
#define DPRINTK(fmt, args...)	printk("modedb %s: " fmt, __func__ , ## args)
#else
#define DPRINTK(fmt, args...)
#endif

const char *fb_mode_option;
EXPORT_SYMBOL_GPL(fb_mode_option);

    /*
     *  Standard video mode definitions (taken from XFree86)
     */

static const struct fb_videomode modedb[] = {
    {
	/* 640x400 @ 70 Hz, 31.5 kHz hsync */
	NULL, 70, 640, 400, 39721, 40, 24, 39, 9, 96, 2,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 640x480 @ 60 Hz, 31.5 kHz hsync */
	NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 800x600 @ 56 Hz, 35.15 kHz hsync */
	NULL, 56, 800, 600, 27777, 128, 24, 22, 1, 72, 2,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 1024x768 @ 87 Hz interlaced, 35.5 kHz hsync */
	NULL, 87, 1024, 768, 22271, 56, 24, 33, 8, 160, 8,
	0, FB_VMODE_INTERLACED
    }, {
	/* 640x400 @ 85 Hz, 37.86 kHz hsync */
	NULL, 85, 640, 400, 31746, 96, 32, 41, 1, 64, 3,
	FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
    }, {
	/* 640x480 @ 72 Hz, 36.5 kHz hsync */
	NULL, 72, 640, 480, 31746, 144, 40, 30, 8, 40, 3,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 640x480 @ 75 Hz, 37.50 kHz hsync */
	NULL, 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 800x600 @ 60 Hz, 37.8 kHz hsync */
	NULL, 60, 800, 600, 25000, 88, 40, 23, 1, 128, 4,
	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
    }, {
	/* 640x480 @ 85 Hz, 43.27 kHz hsync */
	NULL, 85, 640, 480, 27777, 80, 56, 25, 1, 56, 3,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 1152x864 @ 89 Hz interlaced, 44 kHz hsync */
	NULL, 89, 1152, 864, 15384, 96, 16, 110, 1, 216, 10,
	0, FB_VMODE_INTERLACED
    }, {
	/* 800x600 @ 72 Hz, 48.0 kHz hsync */
	NULL, 72, 800, 600, 20000, 64, 56, 23, 37, 120, 6,
	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
    }, {
	/* 1024x768 @ 60 Hz, 48.4 kHz hsync */
	NULL, 60, 1024, 768, 15384, 168, 8, 29, 3, 144, 6,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 640x480 @ 100 Hz, 53.01 kHz hsync */
	NULL, 100, 640, 480, 21834, 96, 32, 36, 8, 96, 6,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 1152x864 @ 60 Hz, 53.5 kHz hsync */
	NULL, 60, 1152, 864, 11123, 208, 64, 16, 4, 256, 8,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 800x600 @ 85 Hz, 55.84 kHz hsync */
	NULL, 85, 800, 600, 16460, 160, 64, 36, 16, 64, 5,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 1024x768 @ 70 Hz, 56.5 kHz hsync */
	NULL, 70, 1024, 768, 13333, 144, 24, 29, 3, 136, 6,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 1280x1024 @ 87 Hz interlaced, 51 kHz hsync */
	NULL, 87, 1280, 1024, 12500, 56, 16, 128, 1, 216, 12,
	0, FB_VMODE_INTERLACED
    }, {
	/* 800x600 @ 100 Hz, 64.02 kHz hsync */
	NULL, 100, 800, 600, 14357, 160, 64, 30, 4, 64, 6,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 1024x768 @ 76 Hz, 62.5 kHz hsync */
	NULL, 76, 1024, 768, 11764, 208, 8, 36, 16, 120, 3,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 1152x864 @ 70 Hz, 62.4 kHz hsync */
	NULL, 70, 1152, 864, 10869, 106, 56, 20, 1, 160, 10,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 1280x1024 @ 61 Hz, 64.2 kHz hsync */
	NULL, 61, 1280, 1024, 9090, 200, 48, 26, 1, 184, 3,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 1400x1050 @ 60Hz, 63.9 kHz hsync */
	NULL, 60, 1400, 1050, 9259, 136, 40, 13, 1, 112, 3,
	0, FB_VMODE_NONINTERLACED   	
    }, {
	/* 1400x1050 @ 75,107 Hz, 82,392 kHz +hsync +vsync*/
	NULL, 75, 1400, 1050, 7190, 120, 56, 23, 10, 112, 13,
	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
    }, {
	/* 1400x1050 @ 60 Hz, ? kHz +hsync +vsync*/
        NULL, 60, 1400, 1050, 9259, 128, 40, 12, 0, 112, 3,
	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
    }, {
	/* 1024x768 @ 85 Hz, 70.24 kHz hsync */
	NULL, 85, 1024, 768, 10111, 192, 32, 34, 14, 160, 6,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 1152x864 @ 78 Hz, 70.8 kHz hsync */
	NULL, 78, 1152, 864, 9090, 228, 88, 32, 0, 84, 12,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 1280x1024 @ 70 Hz, 74.59 kHz hsync */
	NULL, 70, 1280, 1024, 7905, 224, 32, 28, 8, 160, 8,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 1600x1200 @ 60Hz, 75.00 kHz hsync */
	NULL, 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3,
	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
    }, {
	/* 1152x864 @ 84 Hz, 76.0 kHz hsync */
	NULL, 84, 1152, 864, 7407, 184, 312, 32, 0, 128, 12,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 1280x1024 @ 74 Hz, 78.85 kHz hsync */
	NULL, 74, 1280, 1024, 7407, 256, 32, 34, 3, 144, 3,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 1024x768 @ 100Hz, 80.21 kHz hsync */
	NULL, 100, 1024, 768, 8658, 192, 32, 21, 3, 192, 10,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 1280x1024 @ 76 Hz, 81.13 kHz hsync */
	NULL, 76, 1280, 1024, 7407, 248, 32, 34, 3, 104, 3,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 1600x1200 @ 70 Hz, 87.50 kHz hsync */
	NULL, 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 1152x864 @ 100 Hz, 89.62 kHz hsync */
	NULL, 100, 1152, 864, 7264, 224, 32, 17, 2, 128, 19,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 1280x1024 @ 85 Hz, 91.15 kHz hsync */
	NULL, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3,
	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
    }, {
	/* 1600x1200 @ 75 Hz, 93.75 kHz hsync */
	NULL, 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3,
	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
    }, {
	/* 1680x1050 @ 60 Hz, 65.191 kHz hsync */
	NULL, 60, 1680, 1050, 6848, 280, 104, 30, 3, 176, 6,
	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
    }, {
	/* 1600x1200 @ 85 Hz, 105.77 kHz hsync */
	NULL, 85, 1600, 1200, 4545, 272, 16, 37, 4, 192, 3,
	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
    }, {
	/* 1280x1024 @ 100 Hz, 107.16 kHz hsync */
	NULL, 100, 1280, 1024, 5502, 256, 32, 26, 7, 128, 15,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 1800x1440 @ 64Hz, 96.15 kHz hsync  */
	NULL, 64, 1800, 1440, 4347, 304, 96, 46, 1, 192, 3,
	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
    }, {
	/* 1800x1440 @ 70Hz, 104.52 kHz hsync  */
	NULL, 70, 1800, 1440, 4000, 304, 96, 46, 1, 192, 3,
	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
    }, {
	/* 512x384 @ 78 Hz, 31.50 kHz hsync */
	NULL, 78, 512, 384, 49603, 48, 16, 16, 1, 64, 3,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 512x384 @ 85 Hz, 34.38 kHz hsync */
	NULL, 85, 512, 384, 45454, 48, 16, 16, 1, 64, 3,
	0, FB_VMODE_NONINTERLACED
    }, {
	/* 320x200 @ 70 Hz, 31.5 kHz hsync, 8:5 aspect ratio */
	NULL, 70, 320, 200, 79440, 16, 16, 20, 4, 48, 1,
	0, FB_VMODE_DOUBLE
    }, {
	/* 320x240 @ 60 Hz, 31.5 kHz hsync, 4:3 aspect ratio */
	NULL, 60, 320, 240, 79440, 16, 16, 16, 5, 48, 1,
	0, FB_VMODE_DOUBLE
    }, {
	/* 320x240 @ 72 Hz, 36.5 kHz hsync */
	NULL, 72, 320, 240, 63492, 16, 16, 16, 4, 48, 2,
	0, FB_VMODE_DOUBLE
    }, {
	/* 400x300 @ 56 Hz, 35.2 kHz hsync, 4:3 aspect ratio */
	NULL, 56, 400, 300, 55555, 64, 16, 10, 1, 32, 1,
	0, FB_VMODE_DOUBLE
    }, {
	/* 400x300 @ 60 Hz, 37.8 kHz hsync */
	NULL, 60, 400, 300, 50000, 48, 16, 11, 1, 64, 2,
	0, FB_VMODE_DOUBLE
    }, {
	/* 400x300 @ 72 Hz, 48.0 kHz hsync */
	NULL, 72, 400, 300, 40000, 32, 24, 11, 19, 64, 3,
	0, FB_VMODE_DOUBLE
    }, {
	/* 480x300 @ 56 Hz, 35.2 kHz hsync, 8:5 aspect ratio */
	NULL, 56, 480, 300, 46176, 80, 16, 10, 1, 40, 1,
	0, FB_VMODE_DOUBLE
    }, {
	/* 480x300 @ 60 Hz, 37.8 kHz hsync */
	NULL, 60, 480, 300, 41858, 56, 16, 11, 1, 80, 2,
	0, FB_VMODE_DOUBLE
    }, {
	/* 480x300 @ 63 Hz, 39.6 kHz hsync */
	NULL, 63, 480, 300, 40000, 56, 16, 11, 1, 80, 2,
	0, FB_VMODE_DOUBLE
    }, {
	/* 480x300 @ 72 Hz, 48.0 kHz hsync */
	NULL, 72, 480, 300, 33386, 40, 24, 11, 19, 80, 3,
	0, FB_VMODE_DOUBLE
    }, {
	/* 1920x1200 @ 60 Hz, 74.5 Khz hsync */
	NULL, 60, 1920, 1200, 5177, 128, 336, 1, 38, 208, 3,
	FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
	FB_VMODE_NONINTERLACED
    }, {
	/* 1152x768, 60 Hz, PowerBook G4 Titanium I and II */
	NULL, 60, 1152, 768, 14047, 158, 26, 29, 3, 136, 6,
	FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
    }, {
	/* 1366x768, 60 Hz, 47.403 kHz hsync, WXGA 16:9 aspect ratio */
	NULL, 60, 1366, 768, 13806, 120, 10, 14, 3, 32, 5,
	0, FB_VMODE_NONINTERLACED
   }, {
	/* 1280x800, 60 Hz, 47.403 kHz hsync, WXGA 16:10 aspect ratio */
	NULL, 60, 1280, 800, 12048, 200, 64, 24, 1, 136, 3,
	0, FB_VMODE_NONINTERLACED
    },
};

#ifdef CONFIG_FB_MODE_HELPERS
const struct fb_videomode vesa_modes[] = {
	/* 0 640x350-85 VESA */
	{ NULL, 85, 640, 350, 31746,  96, 32, 60, 32, 64, 3,
	  FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA},
	/* 1 640x400-85 VESA */
	{ NULL, 85, 640, 400, 31746,  96, 32, 41, 01, 64, 3,
	  FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
	/* 2 720x400-85 VESA */
	{ NULL, 85, 721, 400, 28169, 108, 36, 42, 01, 72, 3,
	  FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
	/* 3 640x480-60 VESA */
	{ NULL, 60, 640, 480, 39682,  48, 16, 33, 10, 96, 2, 
	  0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
	/* 4 640x480-72 VESA */
	{ NULL, 72, 640, 480, 31746, 128, 24, 29, 9, 40, 2, 
	  0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
	/* 5 640x480-75 VESA */
	{ NULL, 75, 640, 480, 31746, 120, 16, 16, 01, 64, 3,
	  0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
	/* 6 640x480-85 VESA */
	{ NULL, 85, 640, 480, 27777, 80, 56, 25, 01, 56, 3,
	  0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
	/* 7 800x600-56 VESA */
	{ NULL, 56, 800, 600, 27777, 128, 24, 22, 01, 72, 2,
	  FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
	  FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
	/* 8 800x600-60 VESA */
	{ NULL, 60, 800, 600, 25000, 88, 40, 23, 01, 128, 4,
	  FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
	  FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
	/* 9 800x600-72 VESA */
	{ NULL, 72, 800, 600, 20000, 64, 56, 23, 37, 120, 6,
	  FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
	  FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
	/* 10 800x600-75 VESA */
	{ NULL, 75, 800, 600, 20202, 160, 16, 21, 01, 80, 3,
	  FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
	  FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
	/* 11 800x600-85 VESA */
	{ NULL, 85, 800, 600, 17761, 152, 32, 27, 01, 64, 3,
	  FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
	  FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
        /* 12 1024x768i-43 VESA */
	{ NULL, 43, 1024, 768, 22271, 56, 8, 41, 0, 176, 8,
	  FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
	  FB_VMODE_INTERLACED, FB_MODE_IS_VESA },
	/* 13 1024x768-60 VESA */
	{ NULL, 60, 1024, 768, 15384, 160, 24, 29, 3, 136, 6,
	  0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
	/* 14 1024x768-70 VESA */
	{ NULL, 70, 1024, 768, 13333, 144, 24, 29, 3, 136, 6,
	  0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
	/* 15 1024x768-75 VESA */
	{ NULL, 75, 1024, 768, 12690, 176, 16, 28, 1, 96, 3,
	  FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
	  FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
	/* 16 1024x768-85 VESA */
	{ NULL, 85, 1024, 768, 10582, 208, 48, 36, 1, 96, 3,
	  FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
	  FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
	/* 17 1152x864-75 VESA */
	{ NULL, 75, 1152, 864, 9259, 256, 64, 32, 1, 128, 3,
	  FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
	  FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
	/* 18 1280x960-60 VESA */
	{ NULL, 60, 1280, 960, 9259, 312, 96, 36, 1, 112, 3,
	  FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
	  FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
	/* 19 1280x960-85 VESA */
	{ NULL, 85, 1280, 960, 6734, 224, 64, 47, 1, 160, 3,
	  FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
	  FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
	/* 20 1280x1024-60 VESA */
	{ NULL, 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
	  FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
	  FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
	/* 21 1280x1024-75 VESA */
	{ NULL, 75, 1280, 1024, 7407, 248, 16, 38, 1, 144, 3,
	  FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
	  FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
	/* 22 1280x1024-85 VESA */
	{ NULL, 85, 1280, 1024, 6349, 224, 64, 44, 1, 160, 3,
	  FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
	  FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
	/* 23 1600x1200-60 VESA */