From e55c0be37e664f900fc37c5ede7ee15fe241de2d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Markus=20Fr=C3=B6schle?= Date: Sun, 29 Dec 2013 10:06:11 +0000 Subject: [PATCH] added more framebuffer dependencies --- BaS_gcc/Makefile | 2 + BaS_gcc/bas.lk.in | 2 + BaS_gcc/video/fbmodedb.c | 584 +++++++++++++++++ BaS_gcc/video/fbmon.c | 1303 ++++++++++++++++++++++++++++++++++++++ 4 files changed, 1891 insertions(+) create mode 100644 BaS_gcc/video/fbmodedb.c create mode 100644 BaS_gcc/video/fbmon.c diff --git a/BaS_gcc/Makefile b/BaS_gcc/Makefile index ebb8ab9..d500d4a 100644 --- a/BaS_gcc/Makefile +++ b/BaS_gcc/Makefile @@ -104,6 +104,8 @@ CSRCS= \ tftp.c \ \ fbmem.c \ + fbmon.c \ + fbmodedb.c \ \ videl.c \ video.c \ diff --git a/BaS_gcc/bas.lk.in b/BaS_gcc/bas.lk.in index a0dc1b7..5787b0c 100644 --- a/BaS_gcc/bas.lk.in +++ b/BaS_gcc/bas.lk.in @@ -82,6 +82,8 @@ SECTIONS OBJDIR/video.o OBJDIR/videl.o OBJDIR/fbmem.o + OBJDIR/fbmon.o + OBJDIR/fbmodedb.o OBJDIR/biosemu.o diff --git a/BaS_gcc/video/fbmodedb.c b/BaS_gcc/video/fbmodedb.c new file mode 100644 index 0000000..0bc6a06 --- /dev/null +++ b/BaS_gcc/video/fbmodedb.c @@ -0,0 +1,584 @@ +/* + * fb_modedb.c -- Standard video mode database management + * + * Copyright (C) 1999 Geert Uytterhoeven + * + * 2001 - Documented with DocBook + * - Brad Douglas + * + * 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 "fb.h" +#include "bas_string.h" + +#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)) + + /* + * Standard video mode definitions (taken from XFree86) + */ + +#define DEFAULT_MODEDB_INDEX 0 + +const struct fb_videomode modedb[] = { + { + /* 640x400 @ 70 Hz, 31.5 kHz hsync */ + 70, 640, 400, 39721, 40, 24, 39, 9, 96, 2, + 0, FB_VMODE_NONINTERLACED + }, { + /* 640x480 @ 60 Hz, 31.5 kHz hsync */ + 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2, + 0, FB_VMODE_NONINTERLACED + }, { + /* 800x600 @ 56 Hz, 35.15 kHz hsync */ + 56, 800, 600, 27777, 128, 24, 22, 1, 72, 2, + 0, FB_VMODE_NONINTERLACED + }, { + /* 1024x768 @ 87 Hz interlaced, 35.5 kHz hsync */ + 87, 1024, 768, 22271, 56, 24, 33, 8, 160, 8, + 0, FB_VMODE_INTERLACED + }, { + /* 640x400 @ 85 Hz, 37.86 kHz hsync */ + 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 */ + 72, 640, 480, 31746, 144, 40, 30, 8, 40, 3, + 0, FB_VMODE_NONINTERLACED + }, { + /* 640x480 @ 75 Hz, 37.50 kHz hsync */ + 75, 640, 480, 31746, 120, 16, 16, 1, 64, 3, + 0, FB_VMODE_NONINTERLACED + }, { + /* 800x600 @ 60 Hz, 37.8 kHz hsync */ + 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 */ + 85, 640, 480, 27777, 80, 56, 25, 1, 56, 3, + 0, FB_VMODE_NONINTERLACED + }, { + /* 1152x864 @ 89 Hz interlaced, 44 kHz hsync */ + 69, 1152, 864, 15384, 96, 16, 110, 1, 216, 10, + 0, FB_VMODE_INTERLACED + }, { + /* 800x600 @ 72 Hz, 48.0 kHz hsync */ + 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 */ + 60, 1024, 768, 15384, 168, 8, 29, 3, 144, 6, + 0, FB_VMODE_NONINTERLACED + }, { + /* 640x480 @ 100 Hz, 53.01 kHz hsync */ + 100, 640, 480, 21834, 96, 32, 36, 8, 96, 6, + 0, FB_VMODE_NONINTERLACED + }, { + /* 1152x864 @ 60 Hz, 53.5 kHz hsync */ + 60, 1152, 864, 11123, 208, 64, 16, 4, 256, 8, + 0, FB_VMODE_NONINTERLACED + }, { + /* 800x600 @ 85 Hz, 55.84 kHz hsync */ + 85, 800, 600, 16460, 160, 64, 36, 16, 64, 5, + 0, FB_VMODE_NONINTERLACED + }, { + /* 1024x768 @ 70 Hz, 56.5 kHz hsync */ + 70, 1024, 768, 13333, 144, 24, 29, 3, 136, 6, + 0, FB_VMODE_NONINTERLACED + }, { + /* 1280x1024 @ 87 Hz interlaced, 51 kHz hsync */ + 87, 1280, 1024, 12500, 56, 16, 128, 1, 216, 12, + 0, FB_VMODE_INTERLACED + }, { + /* 800x600 @ 100 Hz, 64.02 kHz hsync */ + 100, 800, 600, 14357, 160, 64, 30, 4, 64, 6, + 0, FB_VMODE_NONINTERLACED + }, { + /* 1024x768 @ 76 Hz, 62.5 kHz hsync */ + 76, 1024, 768, 11764, 208, 8, 36, 16, 120, 3, + 0, FB_VMODE_NONINTERLACED + }, { + /* 1152x864 @ 70 Hz, 62.4 kHz hsync */ + 70, 1152, 864, 10869, 106, 56, 20, 1, 160, 10, + 0, FB_VMODE_NONINTERLACED + }, { + /* 1280x1024 @ 61 Hz, 64.2 kHz hsync */ + 61, 1280, 1024, 9090, 200, 48, 26, 1, 184, 3, + 0, FB_VMODE_NONINTERLACED + }, { + /* 1400x1050 @ 60Hz, 63.9 kHz hsync */ + 68, 1400, 1050, 9259, 136, 40, 13, 1, 112, 3, + 0, FB_VMODE_NONINTERLACED + }, { + /* 1400x1050 @ 75,107 Hz, 82,392 kHz +hsync +vsync*/ + 75, 1400, 1050, 9271, 120, 56, 13, 0, 112, 3, + FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED + }, { + /* 1400x1050 @ 60 Hz, ? kHz +hsync +vsync*/ + 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 */ + 85, 1024, 768, 10111, 192, 32, 34, 14, 160, 6, + 0, FB_VMODE_NONINTERLACED + }, { + /* 1152x864 @ 78 Hz, 70.8 kHz hsync */ + 78, 1152, 864, 9090, 228, 88, 32, 0, 84, 12, + 0, FB_VMODE_NONINTERLACED + }, { + /* 1280x1024 @ 70 Hz, 74.59 kHz hsync */ + 70, 1280, 1024, 7905, 224, 32, 28, 8, 160, 8, + 0, FB_VMODE_NONINTERLACED + }, { + /* 1600x1200 @ 60Hz, 75.00 kHz hsync */ + 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 */ + 84, 1152, 864, 7407, 184, 312, 32, 0, 128, 12, + 0, FB_VMODE_NONINTERLACED + }, { + /* 1280x1024 @ 74 Hz, 78.85 kHz hsync */ + 74, 1280, 1024, 7407, 256, 32, 34, 3, 144, 3, + 0, FB_VMODE_NONINTERLACED + }, { + /* 1024x768 @ 100Hz, 80.21 kHz hsync */ + 100, 1024, 768, 8658, 192, 32, 21, 3, 192, 10, + 0, FB_VMODE_NONINTERLACED + }, { + /* 1280x1024 @ 76 Hz, 81.13 kHz hsync */ + 76, 1280, 1024, 7407, 248, 32, 34, 3, 104, 3, + 0, FB_VMODE_NONINTERLACED + }, { + /* 1600x1200 @ 70 Hz, 87.50 kHz hsync */ + 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3, + 0, FB_VMODE_NONINTERLACED + }, { + /* 1152x864 @ 100 Hz, 89.62 kHz hsync */ + 100, 1152, 864, 7264, 224, 32, 17, 2, 128, 19, + 0, FB_VMODE_NONINTERLACED + }, { + /* 1280x1024 @ 85 Hz, 91.15 kHz hsync */ + 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 */ + 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3, + FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED + }, { + /* 1600x1200 @ 85 Hz, 105.77 kHz hsync */ + 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 */ + 100, 1280, 1024, 5502, 256, 32, 26, 7, 128, 15, + 0, FB_VMODE_NONINTERLACED + }, { + /* 1800x1440 @ 64Hz, 96.15 kHz hsync */ + 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 */ + 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 */ + 78, 512, 384, 49603, 48, 16, 16, 1, 64, 3, + 0, FB_VMODE_NONINTERLACED + }, { + /* 512x384 @ 85 Hz, 34.38 kHz hsync */ + 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 */ + 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 */ + 60, 320, 240, 79440, 16, 16, 16, 5, 48, 1, + 0, FB_VMODE_DOUBLE + }, { + /* 320x240 @ 72 Hz, 36.5 kHz hsync */ + 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 */ + 56, 400, 300, 55555, 64, 16, 10, 1, 32, 1, + 0, FB_VMODE_DOUBLE + }, { + /* 400x300 @ 60 Hz, 37.8 kHz hsync */ + 60, 400, 300, 50000, 48, 16, 11, 1, 64, 2, + 0, FB_VMODE_DOUBLE + }, { + /* 400x300 @ 72 Hz, 48.0 kHz hsync */ + 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 */ + 56, 480, 300, 46176, 80, 16, 10, 1, 40, 1, + 0, FB_VMODE_DOUBLE + }, { + /* 480x300 @ 60 Hz, 37.8 kHz hsync */ + 60, 480, 300, 41858, 56, 16, 11, 1, 80, 2, + 0, FB_VMODE_DOUBLE + }, { + /* 480x300 @ 63 Hz, 39.6 kHz hsync */ + 63, 480, 300, 40000, 56, 16, 11, 1, 80, 2, + 0, FB_VMODE_DOUBLE + }, { + /* 480x300 @ 72 Hz, 48.0 kHz hsync */ + 72, 480, 300, 33386, 40, 24, 11, 19, 80, 3, + 0, FB_VMODE_DOUBLE + }, { + /* 1920x1200 @ 60 Hz, 74.5 Khz hsync */ + 60, 1920, 1200, 5177, 128, 336, 1, 38, 208, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED + }, { +#if 1 + /* 1152x768, 60 Hz, PowerBook G4 Titanium I and II */ + 60, 1152, 768, 14047, 158, 26, 29, 3, 136, 6, + FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED + }, { +#else + /* 1920x1080, 60 Hz, 1080pf */ + 60, 1920, 1080, 6741, 148, 44, 36, 4, 88, 5, + 0, FB_VMODE_NONINTERLACED + }, { +#endif + /* 1366x768, 60 Hz, 47.403 kHz hsync, WXGA 16:9 aspect ratio */ + 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 */ + 60, 1280, 800, 12048, 200, 64, 24, 1, 136, 3, + 0, FB_VMODE_NONINTERLACED + }, +}; + +long total_modedb = sizeof(modedb)/sizeof(*modedb); + +const struct fb_videomode vesa_modes[] = { + /* 0 640x350-85 VESA */ + { 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 */ + { 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 */ + { 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 */ + { 60, 640, 480, 39682, 48, 16, 33, 10, 96, 2, + 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, + /* 4 640x480-72 VESA */ + { 72, 640, 480, 31746, 128, 24, 29, 9, 40, 2, + 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, + /* 5 640x480-75 VESA */ + { 75, 640, 480, 31746, 120, 16, 16, 01, 64, 3, + 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, + /* 6 640x480-85 VESA */ + { 85, 640, 480, 27777, 80, 56, 25, 01, 56, 3, + 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, + /* 7 800x600-56 VESA */ + { 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 */ + { 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 */ + { 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 */ + { 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 */ + { 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 */ + { 53, 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 */ + { 60, 1024, 768, 15384, 160, 24, 29, 3, 136, 6, + 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, + /* 14 1024x768-70 VESA */ + { 70, 1024, 768, 13333, 144, 24, 29, 3, 136, 6, + 0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, + /* 15 1024x768-75 VESA */ + { 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 */ + { 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 */ + { 75, 1153, 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 */ + { 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 */ + { 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 */ + { 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 */ + { 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 */ + { 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 */ + { 60, 1600, 1200, 6172, 304, 64, 46, 1, 192, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, + /* 24 1600x1200-65 VESA */ + { 65, 1600, 1200, 5698, 304, 64, 46, 1, 192, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, + /* 25 1600x1200-70 VESA */ + { 70, 1600, 1200, 5291, 304, 64, 46, 1, 192, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, + /* 26 1600x1200-75 VESA */ + { 75, 1600, 1200, 4938, 304, 64, 46, 1, 192, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, + /* 27 1600x1200-85 VESA */ + { 85, 1600, 1200, 4357, 304, 64, 46, 1, 192, 3, + FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, + FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, + /* 28 1792x1344-60 VESA */ + { 60, 1792, 1344, 4882, 328, 128, 46, 1, 200, 3, + FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, + /* 29 1792x1344-75 VESA */ + { 75, 1792, 1344, 3831, 352, 96, 69, 1, 216, 3, + FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, + /* 30 1856x1392-60 VESA */ + { 60, 1856, 1392, 4580, 352, 96, 43, 1, 224, 3, + FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, + /* 31 1856x1392-75 VESA */ + { 75, 1856, 1392, 3472, 352, 128, 104, 1, 224, 3, + FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, + /* 32 1920x1440-60 VESA */ + { 60, 1920, 1440, 4273, 344, 128, 56, 1, 200, 3, + FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, + /* 33 1920x1440-75 VESA */ + { 60, 1920, 1440, 3367, 352, 144, 56, 1, 224, 3, + FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA }, +}; + +/** + * fb_try_mode - test a video mode + * @var: frame buffer user defined part of display + * @info: frame buffer info structure + * @mode: frame buffer video mode structure + * @bpp: color depth in bits per pixel + * + * Tries a video mode to test it's validity for device @info. + * + * Returns 1 on success. + * + */ + +static int fb_try_mode(struct fb_var_screeninfo *var, struct fb_info *info, + const struct fb_videomode *mode, unsigned int bpp) +{ + int err = 0; + DPRINTVAL("Trying mode ", mode->xres); + DPRINTVAL("x", mode->yres); + DPRINTVAL("-", bpp); + DPRINTVAL("@", mode->refresh); + DPRINT("\r\n"); + var->xres = mode->xres; + var->yres = mode->yres; + var->xres_virtual = mode->xres; + var->yres_virtual = mode->yres; + var->xoffset = 0; + var->yoffset = 0; + var->bits_per_pixel = bpp; + var->activate |= FB_ACTIVATE_TEST; + var->pixclock = mode->pixclock; + var->left_margin = mode->left_margin; + var->right_margin = mode->right_margin; + var->upper_margin = mode->upper_margin; + var->lower_margin = mode->lower_margin; + var->hsync_len = mode->hsync_len; + var->vsync_len = mode->vsync_len; + var->sync = mode->sync; + var->vmode = mode->vmode; + var->refresh = mode->refresh; + err = info->fbops->fb_check_var(var, info); + var->activate &= ~FB_ACTIVATE_TEST; + return err; +} + +/** + * fb_find_mode - finds a valid video mode + * @var: frame buffer user defined part of display + * @info: frame buffer info structure + * @resolution: fVDI structure mode_option + * @db: video mode database + * @dbsize: size of @db + * @default_mode: default video mode to fall back to + * @default_bpp: default color depth in bits per pixel + * + * Finds a suitable video mode, starting with the specified mode + * in @resolution with fallback to @default_mode. If + * @default_mode fails, all modes in the video mode database will + * be tried. + * + * Valid mode specifiers for @resolution: + * + * x[-][@] or + * [-][@] + * + * with , , and decimal numbers and + * a string. + * + * NOTE: The passed struct @var is _not_ cleared! This allows you + * to supply values for e.g. the grayscale and accel_flags fields. + * + * Returns zero for failure, 1 if using specified @resolution, + * 2 if using specified @resolution with an ignored refresh rate, + * 3 if default mode is used, 4 if fall back to any valid mode. + * + */ + +int fb_find_mode(struct fb_var_screeninfo *var, + struct fb_info *info, struct mode_option *resolution , + const struct fb_videomode *db, unsigned int dbsize, + const struct fb_videomode *default_mode, + unsigned int default_bpp) +{ + int i,abs; + int res_specified = 0, bpp_specified = 0, refresh_specified = 0; + unsigned int xres = 0, yres = 0, bpp = default_bpp, refresh = 0; + int yres_specified = 0; + unsigned long best, diff; +// DPRINT("fb_find_mode\r\n"); + /* Set up defaults */ + if(!db) + { +// DPRINT("fb_find_mode, use default modedb\r\n"); + if(resolution->used && (resolution->flags & MODE_VESA_FLAG)) + { + db = vesa_modes; + dbsize = sizeof(vesa_modes)/sizeof(*vesa_modes); + } + else + { + db = modedb; + dbsize = sizeof(modedb)/sizeof(*modedb); + } + } + if(!default_mode) + default_mode = &modedb[DEFAULT_MODEDB_INDEX]; + if(!default_bpp) + default_bpp = 8; + /* Did the user specify a video mode? */ + if(resolution->used) /* fVDI mode */ + { + refresh = (unsigned int)resolution->freq; + if(refresh) + refresh_specified = 1; + bpp = (unsigned int)resolution->bpp; + if(resolution->flags & MODE_EMUL_MONO_FLAG) + bpp = 8; + if(bpp) + bpp_specified = 1; + yres = (unsigned int)resolution->height; + if(yres) + yres_specified = 1; + xres = (unsigned int)resolution->width; + if(xres) + res_specified = 1; + } + DPRINTVAL("Trying specified video mode ",xres); + DPRINTVAL("x",yres); + DPRINT("\r\n"); + diff = refresh; + best = -1; + for(i = 0; i < dbsize; i++) + { + if(res_specified && res_matches(db[i], xres, yres)) + { + if(!fb_try_mode(var, info, &db[i], bpp)) + { + if(!refresh_specified || db[i].refresh == refresh) + return 1; + else + { + abs = db[i].refresh - refresh; + if(abs < 0) + abs = -abs; + if(diff > abs) + { + diff = abs; + best = i; + } + } + } + } + } + if(best != -1) + { + fb_try_mode(var, info, &db[best], bpp); + return 2; + } + diff = xres + yres; + DPRINT("Trying best-fit modes\r\n"); + best = -1; + for(i = 0; i < dbsize; i++) + { + if(xres <= db[i].xres && yres <= db[i].yres) + { + DPRINTVAL("Trying ",db[i].xres); + DPRINTVAL("x",db[i].yres); + DPRINT("\r\n"); + if(!fb_try_mode(var, info, &db[i], bpp)) + { + if (diff > (db[i].xres - xres) + (db[i].yres - yres)) + { + diff = (db[i].xres - xres) + (db[i].yres - yres); + best = i; + } + } + } + } + if(best != -1) + { + fb_try_mode(var, info, &db[best], bpp); + return 5; + } + DPRINT("Trying default video mode\r\n"); + if(!fb_try_mode(var, info, default_mode, default_bpp)) + return 3; + DPRINT("Trying all modes\r\n"); + for(i = 0; i < dbsize; i++) + { + if(!fb_try_mode(var, info, &db[i], default_bpp)) + return 4; + } + DPRINT("No valid mode found\r\n"); + return 0; +} diff --git a/BaS_gcc/video/fbmon.c b/BaS_gcc/video/fbmon.c new file mode 100644 index 0000000..8f2b081 --- /dev/null +++ b/BaS_gcc/video/fbmon.c @@ -0,0 +1,1303 @@ +/* + * fbmon.c + * + * Copyright (C) 2002 James Simmons + * + * Credits: + * + * The EDID Parser is a conglomeration from the following sources: + * + * 1. SciTech SNAP Graphics Architecture + * Copyright (C) 1991-2002 SciTech Software, Inc. All rights reserved. + * + * 2. XFree86 4.3.0, interpret_edid.c + * Copyright 1998 by Egbert Eich + * + * 3. John Fremlin and + * Ani Joshi + * + * Generalized Timing Formula is derived from: + * + * GTF Spreadsheet by Andy Morrish (1/5/97) + * available at http://www.vesa.org + * + * 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 "bas_string.h" +#include "fb.h" +#include "edid.h" + +/* + * EDID parser + */ + +#define FBMON_FIX_HEADER 1 +#define FBMON_FIX_INPUT 2 + +#ifdef CONFIG_FB_MODE_HELPERS +struct broken_edid { + unsigned char manufacturer[4]; + unsigned long model; + unsigned long fix; +}; + +static struct broken_edid brokendb[] = { + /* DEC FR-PCXAV-YZ */ + { + .manufacturer = "DEC", + .model = 0x073a, + .fix = FBMON_FIX_HEADER, + }, + /* ViewSonic PF775a */ + { + .manufacturer = "VSC", + .model = 0x5a44, + .fix = FBMON_FIX_INPUT, + }, +}; + +static const unsigned char edid_v1_header[] = { 0x00, 0xff, 0xff, 0xff, + 0xff, 0xff, 0xff, 0x00 +}; + +static void copy_string(unsigned char *c, unsigned char *s) +{ + int i; + c = c + 5; + for (i = 0; (i < 13 && *c != 0x0A); i++) + *(s++) = *(c++); + *s = 0; + while (i-- && (*--s == 0x20)) *s = 0; +} + +static int check_edid(unsigned char *edid) +{ + unsigned char *block = edid + ID_MANUFACTURER_NAME, manufacturer[4]; + unsigned char *b; + unsigned long model; + int i, fix = 0, ret = 0; + manufacturer[0] = ((block[0] & 0x7c) >> 2) + '@'; + manufacturer[1] = ((block[0] & 0x03) << 3) + ((block[1] & 0xe0) >> 5) + '@'; + manufacturer[2] = (block[1] & 0x1f) + '@'; + manufacturer[3] = 0; + model = block[2] + (block[3] << 8); + for(i = 0; i < sizeof(brokendb)/sizeof(*brokendb); i++) + { + if(manufacturer[0] == brokendb[i].manufacturer[0] + && manufacturer[1] == brokendb[i].manufacturer[1] + && manufacturer[2] == brokendb[i].manufacturer[2] + && manufacturer[3] == brokendb[i].manufacturer[3] + && brokendb[i].model == model) + { + fix = brokendb[i].fix; + break; + } + } + switch(fix) + { + case FBMON_FIX_HEADER: + for(i = 0; i < 8; i++) + { + if(edid[i] != edid_v1_header[i]) + ret = fix; + } + break; + case FBMON_FIX_INPUT: + b = edid + EDID_STRUCT_DISPLAY; + /* Only if display is GTF capable will + the input type be reset to analog */ + if(b[4] & 0x01 && b[0] & 0x80) + ret = fix; + break; + } + return ret; +} + +static void fix_edid(unsigned char *edid, int fix) +{ + unsigned char *b; + switch(fix) + { + case FBMON_FIX_HEADER: + memcpy(edid, edid_v1_header, 8); + break; + case FBMON_FIX_INPUT: + b = edid + EDID_STRUCT_DISPLAY; + b[0] &= ~0x80; + edid[127] += 0x80; + break; + } +} + +static int edid_checksum(unsigned char *edid) +{ + unsigned char i, csum = 0, all_null = 0; + int err = 0, fix = check_edid(edid); + if(fix) + fix_edid(edid, fix); + for(i = 0; i < EDID_LENGTH; i++) + { + csum += edid[i]; + all_null |= edid[i]; + } + if((csum == 0x00) && all_null) + /* checksum passed, everything's good */ + err = 1; + if(!err) + DPRINT("edid bad checksum\r\n"); + return err; +} + +static int edid_check_header(unsigned char *edid) +{ + int i, err = 1, fix = check_edid(edid); + if(fix) + fix_edid(edid, fix); + for(i = 0; i < 8; i++) + { + if(edid[i] != edid_v1_header[i]) + err = 0; + } + if(!err) + DPRINT("edid bad header\r\n"); + return err; +} + +static void parse_vendor_block(unsigned char *block, struct fb_monspecs *specs) +{ + specs->manufacturer[0] = ((block[0] & 0x7c) >> 2) + '@'; + specs->manufacturer[1] = ((block[0] & 0x03) << 3) + ((block[1] & 0xe0) >> 5) + '@'; + specs->manufacturer[2] = (block[1] & 0x1f) + '@'; + specs->manufacturer[3] = 0; + specs->model = block[2] + (block[3] << 8); + specs->serial = block[4] + (block[5] << 8) + (block[6] << 16) + (block[7] << 24); + specs->year = block[9] + 1990; + specs->week = block[8]; + DPRINT(" Manufacturer: "); + DPRINT((void *)specs->manufacturer); + DPRINTVAL("\r\n Model: ",specs->model); + DPRINTVAL("\r\n Serial#: ",specs->serial); + DPRINTVAL("\r\n Year: ",specs->year); + DPRINTVAL(" Week ",specs->week); + DPRINT("\r\n"); +} + +static void get_dpms_capabilities(unsigned char flags, struct fb_monspecs *specs) +{ + specs->dpms = 0; + if(flags & DPMS_ACTIVE_OFF) + specs->dpms |= FB_DPMS_ACTIVE_OFF; + if(flags & DPMS_SUSPEND) + specs->dpms |= FB_DPMS_SUSPEND; + if(flags & DPMS_STANDBY) + specs->dpms |= FB_DPMS_STANDBY; + DPRINT(" DPMS: Active "); + DPRINT((flags & DPMS_ACTIVE_OFF) ? "yes" : "no"); + DPRINT(", Suspend "); + DPRINT((flags & DPMS_SUSPEND) ? "yes" : "no"); + DPRINT(", Standby "); + DPRINT((flags & DPMS_STANDBY) ? "yes\r\n" : "no\r\n"); +} + +static void get_chroma(unsigned char *block, struct fb_monspecs *specs) +{ + int tmp; + DPRINT(" Chroma\r\n"); + /* Chromaticity data */ + tmp = ((block[5] & (3 << 6)) >> 6) | (block[0x7] << 2); + tmp *= 1000; + tmp += 512; + specs->chroma.redx = tmp/1024; + DPRINTVAL(" RedX: ",specs->chroma.redx/10); + tmp = ((block[5] & (3 << 4)) >> 4) | (block[0x8] << 2); + tmp *= 1000; + tmp += 512; + specs->chroma.redy = tmp/1024; + DPRINTVAL("% RedY: ",specs->chroma.redy/10); + tmp = ((block[5] & (3 << 2)) >> 2) | (block[0x9] << 2); + tmp *= 1000; + tmp += 512; + specs->chroma.greenx = tmp/1024; + DPRINTVAL("%\r\n GreenX: ",specs->chroma.greenx/10); + tmp = (block[5] & 3) | (block[0xa] << 2); + tmp *= 1000; + tmp += 512; + specs->chroma.greeny = tmp/1024; + DPRINTVAL("% GreenY: ",specs->chroma.greeny/10); + tmp = ((block[6] & (3 << 6)) >> 6) | (block[0xb] << 2); + tmp *= 1000; + tmp += 512; + specs->chroma.bluex = tmp/1024; + DPRINTVAL("%\r\n BlueX: ",specs->chroma.bluex/10); + tmp = ((block[6] & (3 << 4)) >> 4) | (block[0xc] << 2); + tmp *= 1000; + tmp += 512; + specs->chroma.bluey = tmp/1024; + DPRINTVAL("% BlueY: ",specs->chroma.bluey/10); + tmp = ((block[6] & (3 << 2)) >> 2) | (block[0xd] << 2); + tmp *= 1000; + tmp += 512; + specs->chroma.whitex = tmp/1024; + DPRINTVAL("%\r\n WhiteX: ",specs->chroma.whitex/10); + tmp = (block[6] & 3) | (block[0xe] << 2); + tmp *= 1000; + tmp += 512; + specs->chroma.whitey = tmp/1024; + DPRINTVAL("% WhiteY: ",specs->chroma.whitey/10); + DPRINT("%\r\n"); +} + +static int edid_is_serial_block(unsigned char *block) +{ + if((block[0] == 0x00) && (block[1] == 0x00) + && (block[2] == 0x00) && (block[3] == 0xff) && (block[4] == 0x00)) + return 1; + else + return 0; +} + +static int edid_is_ascii_block(unsigned char *block) +{ + if((block[0] == 0x00) && (block[1] == 0x00) + && (block[2] == 0x00) && (block[3] == 0xfe) && (block[4] == 0x00)) + return 1; + else + return 0; +} + +static int edid_is_limits_block(unsigned char *block) +{ + if((block[0] == 0x00) && (block[1] == 0x00) + && (block[2] == 0x00) && (block[3] == 0xfd) && (block[4] == 0x00)) + return 1; + else + return 0; +} + +static int edid_is_monitor_block(unsigned char *block) +{ + if((block[0] == 0x00) && (block[1] == 0x00) + && (block[2] == 0x00) && (block[3] == 0xfc) && (block[4] == 0x00)) + return 1; + else + return 0; +} + +static void calc_mode_timings(int xres, int yres, int refresh, struct fb_videomode *mode) +{ + struct fb_var_screeninfo var; + struct fb_info info; + var.xres = xres; + var.yres = yres; + fb_get_mode(FB_VSYNCTIMINGS | FB_IGNOREMON, refresh, &var, &info); + mode->xres = xres; + mode->yres = yres; + mode->pixclock = var.pixclock; + mode->refresh = refresh; + mode->left_margin = var.left_margin; + mode->right_margin = var.right_margin; + mode->upper_margin = var.upper_margin; + mode->lower_margin = var.lower_margin; + mode->hsync_len = var.hsync_len; + mode->vsync_len = var.vsync_len; + mode->vmode = 0; + mode->sync = 0; +} + +static int get_est_timing(unsigned char *block, struct fb_videomode *mode) +{ + int num = 0; + unsigned char c; + c = block[0]; + if(c&0x80) + { + calc_mode_timings(720, 400, 70, &mode[num]); + mode[num++].flag = FB_MODE_IS_CALCULATED; + DPRINT(" 720x400@70Hz\r\n"); + } + if(c&0x40) + { + calc_mode_timings(720, 400, 88, &mode[num]); + mode[num++].flag = FB_MODE_IS_CALCULATED; + DPRINT(" 720x400@88Hz\r\n"); + } + if(c&0x20) + { + mode[num++] = vesa_modes[3]; + DPRINT(" 640x480@60Hz\r\n"); + } + if(c&0x10) + { + calc_mode_timings(640, 480, 67, &mode[num]); + mode[num++].flag = FB_MODE_IS_CALCULATED; + DPRINT(" 640x480@67Hz\r\n"); + } + if(c&0x08) + { + mode[num++] = vesa_modes[4]; + DPRINT(" 640x480@72Hz\r\n"); + } + if(c&0x04) + { + mode[num++] = vesa_modes[5]; + DPRINT(" 640x480@75Hz\r\n"); + } + if(c&0x02) + { + mode[num++] = vesa_modes[7]; + DPRINT(" 800x600@56Hz\r\n"); + } + if(c&0x01) + { + mode[num++] = vesa_modes[8]; + DPRINT(" 800x600@60Hz\r\n"); + } + c = block[1]; + if(c&0x80) + { + mode[num++] = vesa_modes[9]; + DPRINT(" 800x600@72Hz\r\n"); + } + if(c&0x40) + { + mode[num++] = vesa_modes[10]; + DPRINT(" 800x600@75Hz\r\n"); + } + if(c&0x20) + { + calc_mode_timings(832, 624, 75, &mode[num]); + mode[num++].flag = FB_MODE_IS_CALCULATED; + DPRINT(" 832x624@75Hz\r\n"); + } + if(c&0x10) + { + mode[num++] = vesa_modes[12]; + DPRINT(" 1024x768@87Hz Interlaced\r\n"); + } + if(c&0x08) + { + mode[num++] = vesa_modes[13]; + DPRINT(" 1024x768@60Hz\r\n"); + } + if(c&0x04) + { + mode[num++] = vesa_modes[14]; + DPRINT(" 1024x768@70Hz\r\n"); + } + if(c&0x02) + { + mode[num++] = vesa_modes[15]; + DPRINT(" 1024x768@75Hz\r\n"); + } + if(c&0x01) + { + mode[num++] = vesa_modes[21]; + DPRINT(" 1280x1024@75Hz\r\n"); + } + c = block[2]; + if(c&0x80) + { + mode[num++] = vesa_modes[17]; + DPRINT(" 1152x870@75Hz\r\n"); + } + DPRINTVAL(" Manufacturer's mask: ",c&0x7F); + DPRINT("\r\n"); + return num; +} + +static int get_std_timing(unsigned char *block, struct fb_videomode *mode) +{ + int xres, yres = 0, refresh, ratio, i; + xres = (block[0] + 31) * 8; + if(xres <= 256) + return 0; + ratio = (block[1] & 0xc0) >> 6; + switch(ratio) + { + case 0: yres = xres; break; + case 1: yres = (xres * 3)/4; break; + case 2: yres = (xres * 4)/5; break; + case 3: yres = (xres * 9)/16; break; + } + refresh = (block[1] & 0x3f) + 60; + DPRINTVAL(" ",xres); + DPRINTVAL("x",yres); + DPRINTVAL("@",refresh); + DPRINT("Hz\r\n"); + for(i = 0; i < VESA_MODEDB_SIZE; i++) + { + if(vesa_modes[i].xres == xres && vesa_modes[i].yres == yres + && vesa_modes[i].refresh == refresh) + { + *mode = vesa_modes[i]; + mode->flag |= FB_MODE_IS_STANDARD; + return 1; + } + } + calc_mode_timings(xres, yres, refresh, mode); + return 1; +} + +static int get_dst_timing(unsigned char *block, struct fb_videomode *mode) +{ + int j, num = 0; + for(j = 0; j < 6; j++, block+= STD_TIMING_DESCRIPTION_SIZE) + num += get_std_timing(block, &mode[num]); + return num; +} + +static void get_detailed_timing(unsigned char *block, struct fb_videomode *mode) +{ + mode->xres = H_ACTIVE; + mode->yres = V_ACTIVE; + mode->pixclock = PIXEL_CLOCK; + mode->pixclock /= 1000; + mode->pixclock = KHZ2PICOS(mode->pixclock); + mode->right_margin = H_SYNC_OFFSET; + mode->left_margin = (H_ACTIVE + H_BLANKING) - (H_ACTIVE + H_SYNC_OFFSET + H_SYNC_WIDTH); + mode->upper_margin = V_BLANKING - V_SYNC_OFFSET - V_SYNC_WIDTH; + mode->lower_margin = V_SYNC_OFFSET; + mode->hsync_len = H_SYNC_WIDTH; + mode->vsync_len = V_SYNC_WIDTH; + if(HSYNC_POSITIVE) + mode->sync |= FB_SYNC_HOR_HIGH_ACT; + if(VSYNC_POSITIVE) + mode->sync |= FB_SYNC_VERT_HIGH_ACT; + mode->refresh = PIXEL_CLOCK/((H_ACTIVE + H_BLANKING) * (V_ACTIVE + V_BLANKING)); + mode->vmode = 0; + mode->flag = FB_MODE_IS_DETAILED; + DPRINTVAL(" ",PIXEL_CLOCK/1000000); + DPRINTVAL(" MHz ",H_ACTIVE); + DPRINTVAL(" ",H_ACTIVE + H_SYNC_OFFSET); + DPRINTVAL(" ",H_ACTIVE + H_SYNC_OFFSET + H_SYNC_WIDTH); + DPRINTVAL(" ",H_ACTIVE + H_BLANKING); + DPRINTVAL(" ",V_ACTIVE); + DPRINTVAL(" ",V_ACTIVE + V_SYNC_OFFSET); + DPRINTVAL(" ",V_ACTIVE + V_SYNC_OFFSET + V_SYNC_WIDTH); + DPRINTVAL(" ",V_ACTIVE + V_BLANKING); + DPRINT((HSYNC_POSITIVE) ? " +" : " -"); + DPRINT("HSync "); + DPRINT((VSYNC_POSITIVE) ? "+" : "-"); + DPRINT("VSync\r\n"); +} + +#define MAX_DB_ALLOC 100 +static struct fb_videomode tab_db[MAX_DB_ALLOC]; +static struct fb_videomode *db_used[MAX_DB_ALLOC]; + +static struct fb_videomode *alloc_db(int num) +{ + int i = 0; + if(!num) + return(NULL); + while(i < MAX_DB_ALLOC) + { + if((db_used[i] == NULL) && ((i + num) <= MAX_DB_ALLOC)) + { + int j; /* search contiguous num db free */ + for(j = 0; j < num; j++) + { + if(db_used[i+j] != NULL) + break; /* already used */ + } + if(j >= num) + { + struct fb_videomode *p = &tab_db[i]; + for(j = 0; j < num; db_used[i+j] = p, j++); + return(p); + } + } + i++; + } + return(NULL); +} + +static void free_db(struct fb_videomode *db) +{ + int i; + for(i = 0; i < MAX_DB_ALLOC; i++) + { + if(db_used[i] == db) + db_used[i] = NULL; + } +} + +/** + * fb_destroy_modedb - destroys mode database + * @modedb: mode database to destroy + * + * DESCRIPTION: + * Destroy mode database created by fb_create_modedb + */ +void fb_destroy_modedb(struct fb_videomode *modedb) +{ +// Funcs_free(modedb); + free_db(modedb); +} + +/** + * fb_create_modedb - create video mode database + * @edid: EDID data + * @dbsize: database size + * + * RETURNS: struct fb_videomode, @dbsize contains length of database + * + * DESCRIPTION: + * This function builds a mode database using the contents of the EDID + * data + */ +static struct fb_videomode *fb_create_modedb(unsigned char *edid, int *dbsize) +{ + struct fb_videomode *mode, *m; + unsigned char *block; + int num = 0, i; +// mode = Funcs_malloc(50 * sizeof(struct fb_videomode), 3); + mode = alloc_db(50); + if(mode == NULL) + return NULL; + memset((char *)mode, 0, 50 * sizeof(struct fb_videomode)); + if(edid == NULL || !edid_checksum(edid) || !edid_check_header(edid)) + { + fb_destroy_modedb(mode); + return NULL; + } + *dbsize = 0; + DPRINT(" Supported VESA Modes\r\n"); + block = edid + ESTABLISHED_TIMING_1; + num += get_est_timing(block, &mode[num]); + DPRINT(" Standard Timings\r\n"); + block = edid + STD_TIMING_DESCRIPTIONS_START; + for(i = 0; i < STD_TIMING; i++, block += STD_TIMING_DESCRIPTION_SIZE) + num += get_std_timing(block, &mode[num]); + DPRINT(" Detailed Timings\r\n"); + block = edid + DETAILED_TIMING_DESCRIPTIONS_START; + for(i = 0; i < 4; i++, block+= DETAILED_TIMING_DESCRIPTION_SIZE) + { + int first = 1; + if(block[0] == 0x00 && block[1] == 0x00) + { + if(block[3] == 0xfa) + num += get_dst_timing(block + 5, &mode[num]); + } + else + { + get_detailed_timing(block, &mode[num]); + if(first) + { + mode[num].flag |= FB_MODE_IS_FIRST; + first = 0; + } + num++; + } + } + /* Yikes, EDID data is totally useless */ + if(!num) + { + fb_destroy_modedb(mode); + return NULL; + } + *dbsize = num; +// m = Funcs_malloc(num * sizeof(struct fb_videomode), 3); + m = alloc_db(num); + if(!m) + return mode; + memcpy(m, mode, num * sizeof(struct fb_videomode)); + fb_destroy_modedb(mode); + return m; +} + +static int fb_get_monitor_limits(unsigned char *edid, struct fb_monspecs *specs) +{ + int i, retval = 1; + unsigned char *block; + block = edid + DETAILED_TIMING_DESCRIPTIONS_START; + DPRINT(" Monitor Operating Limits: "); + for(i = 0; i < 4; i++, block += DETAILED_TIMING_DESCRIPTION_SIZE) + { + if(edid_is_limits_block(block)) + { + specs->hfmin = H_MIN_RATE * 1000; + specs->hfmax = H_MAX_RATE * 1000; + specs->vfmin = V_MIN_RATE; + specs->vfmax = V_MAX_RATE; + specs->dclkmax = MAX_PIXEL_CLOCK * 1000000; + specs->gtf = (GTF_SUPPORT) ? 1 : 0; + retval = 0; + DPRINT("From EDID\r\n"); + break; + } + } + /* estimate monitor limits based on modes supported */ + if(retval) + { + struct fb_videomode *modes; + int num_modes, i, hz, hscan, pixclock; + modes = fb_create_modedb(edid, &num_modes); + if(!modes) + { + DPRINT("None Available\r\n"); + return 1; + } + retval = 0; + for(i = 0; i < num_modes; i++) + { + hz = modes[i].refresh; + pixclock = PICOS2KHZ(modes[i].pixclock) * 1000; + hscan = (modes[i].yres * 105 * hz + 5000)/100; + if(specs->dclkmax == 0 || specs->dclkmax < pixclock) + specs->dclkmax = pixclock; + if(specs->dclkmin == 0 || specs->dclkmin > pixclock) + specs->dclkmin = pixclock; + if(specs->hfmax == 0 || specs->hfmax < hscan) + specs->hfmax = hscan; + if(specs->hfmin == 0 || specs->hfmin > hscan) + specs->hfmin = hscan; + if(specs->vfmax == 0 || specs->vfmax < hz) + specs->vfmax = hz; + if(specs->vfmin == 0 || specs->vfmin > hz) + specs->vfmin = hz; + } + DPRINT("Extrapolated\r\n"); + fb_destroy_modedb(modes); + } + DPRINTVAL(" H: ",specs->hfmin/1000); + DPRINTVAL("-",specs->hfmax/1000); + DPRINTVAL("KHz V: ",specs->vfmin); + DPRINTVAL("-",specs->vfmax); + DPRINTVAL("Hz DCLK: ",specs->dclkmax/1000000); + DPRINT("MHz\r\n"); + return retval; +} + +static void get_monspecs(unsigned char *edid, struct fb_monspecs *specs) +{ + unsigned char c, *block; + block = edid + EDID_STRUCT_DISPLAY; + fb_get_monitor_limits(edid, specs); + c = block[0] & 0x80; + specs->input = 0; + if(c) + { + specs->input |= FB_DISP_DDI; + DPRINT(" Digital Display Input"); + } + else + { + DPRINT(" Analog Display Input: Input Voltage - "); + switch ((block[0] & 0x60) >> 5) + { + case 0: + DPRINT("0.700V/0.300V"); + specs->input |= FB_DISP_ANA_700_300; + break; + case 1: + DPRINT("0.714V/0.286V"); + specs->input |= FB_DISP_ANA_714_286; + break; + case 2: + DPRINT("1.000V/0.400V"); + specs->input |= FB_DISP_ANA_1000_400; + break; + case 3: + DPRINT("0.700V/0.000V"); + specs->input |= FB_DISP_ANA_700_000; + break; + } + } + DPRINT("\r\n Sync: "); + c = block[0] & 0x10; + if(c) + { + DPRINT(" Configurable signal level\r\n"); + } + c = block[0] & 0x0f; + specs->signal = 0; + if(c & 0x10) + { + DPRINT("Blank to Blank "); + specs->signal |= FB_SIGNAL_BLANK_BLANK; + } + if(c & 0x08) + { + DPRINT("Separate "); + specs->signal |= FB_SIGNAL_SEPARATE; + } + if(c & 0x04) + { + DPRINT("Composite "); + specs->signal |= FB_SIGNAL_COMPOSITE; + } + if(c & 0x02) + { + DPRINT("Sync on Green "); + specs->signal |= FB_SIGNAL_SYNC_ON_GREEN; + } + if(c & 0x01) + { + DPRINT("Serration on "); + specs->signal |= FB_SIGNAL_SERRATION_ON; + } + DPRINT("\r\n"); + specs->max_x = block[1]; + specs->max_y = block[2]; + DPRINT(" Max H-size in cm: "); + if(specs->max_x) + { + DPRINTVAL("",specs->max_x); + DPRINT("\r\n"); + } + else + { + DPRINT("variable\r\n"); + } + DPRINT(" Max V-size in cm: "); + if(specs->max_y) + { + DPRINTVAL("",specs->max_y); + DPRINT("\r\n"); + } + else + { + DPRINT("variable\r\n"); + } + c = block[3]; + specs->gamma = c+100; + DPRINTVAL(" Gamma: ",specs->gamma/100); + DPRINT("\r\n"); + get_dpms_capabilities(block[4], specs); + switch ((block[4] & 0x18) >> 3) + { + case 0: + DPRINT(" Monochrome/Grayscale\r\n"); + specs->input |= FB_DISP_MONO; + break; + case 1: + DPRINT(" RGB Color Display\r\n"); + specs->input |= FB_DISP_RGB; + break; + case 2: + DPRINT(" Non-RGB Multicolor Display\r\n"); + specs->input |= FB_DISP_MULTI; + break; + default: + DPRINT(" Unknown\r\n"); + specs->input |= FB_DISP_UNKNOWN; + break; + } + get_chroma(block, specs); + specs->misc = 0; + c = block[4] & 0x7; + if(c & 0x04) + { + DPRINT(" Default color format is primary\r\n"); + specs->misc |= FB_MISC_PRIM_COLOR; + } + if(c & 0x02) + { + DPRINT(" First DETAILED Timing is preferred\r\n"); + specs->misc |= FB_MISC_1ST_DETAIL; + } + if(c & 0x01) + { + DPRINT(" Display is GTF capable\r\n"); + specs->gtf = 1; + } +} + +static int edid_is_timing_block(unsigned char *block) +{ + if((block[0] != 0x00) || (block[1] != 0x00) + || (block[2] != 0x00) || (block[4] != 0x00)) + return 1; + else + return 0; +} + +int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var) +{ + int i; + unsigned char *block; + if(edid == NULL || var == NULL) + return 1; + if(!(edid_checksum(edid))) + return 1; + if(!(edid_check_header(edid))) + return 1; + block = edid + DETAILED_TIMING_DESCRIPTIONS_START; + for(i = 0; i < 4; i++, block += DETAILED_TIMING_DESCRIPTION_SIZE) + { + if(edid_is_timing_block(block)) + { + var->xres = var->xres_virtual = H_ACTIVE; + var->yres = var->yres_virtual = V_ACTIVE; + var->height = var->width = -1; + var->right_margin = H_SYNC_OFFSET; + var->left_margin = (H_ACTIVE + H_BLANKING) - (H_ACTIVE + H_SYNC_OFFSET + H_SYNC_WIDTH); + var->upper_margin = V_BLANKING - V_SYNC_OFFSET - V_SYNC_WIDTH; + var->lower_margin = V_SYNC_OFFSET; + var->hsync_len = H_SYNC_WIDTH; + var->vsync_len = V_SYNC_WIDTH; + var->pixclock = PIXEL_CLOCK; + var->pixclock /= 1000; + var->pixclock = KHZ2PICOS(var->pixclock); + if(HSYNC_POSITIVE) + var->sync |= FB_SYNC_HOR_HIGH_ACT; + if(VSYNC_POSITIVE) + var->sync |= FB_SYNC_VERT_HIGH_ACT; + return 0; + } + } + DPRINT("edid no timing block\r\n"); + return 1; +} + +void fb_edid_to_monspecs(unsigned char *edid, struct fb_monspecs *specs) +{ + unsigned char *block; + int i; + if(edid == NULL) + return; + if(!(edid_checksum(edid))) + return; + if(!(edid_check_header(edid))) + return; + if(specs->modedb != NULL) + fb_destroy_modedb(specs->modedb); + memset((char *)specs, 0, sizeof(struct fb_monspecs)); + specs->version = edid[EDID_STRUCT_VERSION]; + specs->revision = edid[EDID_STRUCT_REVISION]; + DPRINT("========================================\r\n"); + DPRINT("Display Information (EDID)\r\n"); + DPRINT("========================================\r\n"); + DPRINTVAL(" EDID Version ",specs->version); + DPRINTVAL(".",specs->revision); + DPRINT("\r\n"); + parse_vendor_block(edid + ID_MANUFACTURER_NAME, specs); + block = edid + DETAILED_TIMING_DESCRIPTIONS_START; + for(i = 0; i < 4; i++, block += DETAILED_TIMING_DESCRIPTION_SIZE) + { + if(edid_is_serial_block(block)) + { + copy_string(block, specs->serial_no); + DPRINT(" Serial Number: "); + DPRINT((void *)specs->serial_no); + DPRINT("\r\n"); + } + else if(edid_is_ascii_block(block)) + { + copy_string(block, specs->ascii); + DPRINT(" ASCII Block: "); + DPRINT((void *)specs->ascii); + DPRINT("\r\n"); + } + else if(edid_is_monitor_block(block)) + { + copy_string(block, specs->monitor); + DPRINT(" Monitor Name: "); + DPRINT((void *)specs->monitor); + DPRINT("\r\n"); + } + } + DPRINT(" Display Characteristics:\r\n"); + get_monspecs(edid, specs); + specs->modedb = fb_create_modedb(edid, (int *)&specs->modedb_len); + DPRINT("========================================\r\n"); +} + +/* + * VESA Generalized Timing Formula (GTF) + */ + +#define FLYBACK 550 +#define V_FRONTPORCH 1 +#define H_OFFSET 40 +#define H_SCALEFACTOR 20 +#define H_BLANKSCALE 128 +#define H_GRADIENT 600 +#define C_VAL 30 +#define M_VAL 300 + +struct __fb_timings { + unsigned long dclk; + unsigned long hfreq; + unsigned long vfreq; + unsigned long hactive; + unsigned long vactive; + unsigned long hblank; + unsigned long vblank; + unsigned long htotal; + unsigned long vtotal; +}; + +/** + * fb_get_vblank - get vertical blank time + * @hfreq: horizontal freq + * + * DESCRIPTION: + * vblank = right_margin + vsync_len + left_margin + * + * given: right_margin = 1 (V_FRONTPORCH) + * vsync_len = 3 + * flyback = 550 + * + * flyback * hfreq + * left_margin = --------------- - vsync_len + * 1000000 + */ +static unsigned long fb_get_vblank(unsigned long hfreq) +{ + unsigned long vblank; + vblank = (hfreq * FLYBACK)/1000; + vblank = (vblank + 500)/1000; + return (vblank + V_FRONTPORCH); +} + +/** + * fb_get_hblank_by_freq - get horizontal blank time given hfreq + * @hfreq: horizontal freq + * @xres: horizontal resolution in pixels + * + * DESCRIPTION: + * + * xres * duty_cycle + * hblank = ------------------ + * 100 - duty_cycle + * + * duty cycle = percent of htotal assigned to inactive display + * duty cycle = C - (M/Hfreq) + * + * where: C = ((offset - scale factor) * blank_scale) + * -------------------------------------- + scale factor + * 256 + * M = blank_scale * gradient + * + */ +static unsigned long fb_get_hblank_by_hfreq(unsigned long hfreq, unsigned long xres) +{ + unsigned long c_val, m_val, duty_cycle, hblank; + c_val = (((H_OFFSET - H_SCALEFACTOR) * H_BLANKSCALE)/256 + H_SCALEFACTOR) * 1000; + m_val = (H_BLANKSCALE * H_GRADIENT)/256; + m_val = (m_val * 1000000)/hfreq; + duty_cycle = c_val - m_val; + hblank = (xres * duty_cycle)/(100000 - duty_cycle); + return (hblank); +} + +/* Quick integer square root using binomial theorem (from Dr. Dobbs journal) */ +static int int_sqrt(int N) +{ + unsigned long l2, u, v, u2, n; + if(N < 2) + return N; + u = N; + l2 = 0; + /* 1/2 * log_2 N = highest bit in the result */ + while ((u >>= 2)) + l2++; + u = 1L << l2; + v = u; + u2 = u << l2; + while (l2--) + { + v >>= 1; + n = (u + u + v) << l2; + n += u2; + if (n <= N) + { + u += v; + u2 = n; + } + } + return u; +} + +/** + * fb_get_hblank_by_dclk - get horizontal blank time given pixelclock + * @dclk: pixelclock in Hz + * @xres: horizontal resolution in pixels + * + * DESCRIPTION: + * + * xres * duty_cycle + * hblank = ------------------ + * 100 - duty_cycle + * + * duty cycle = percent of htotal assigned to inactive display + * duty cycle = C - (M * h_period) + * + * where: h_period = SQRT(100 - C + (0.4 * xres * M)/dclk) + C - 100 + * ----------------------------------------------- + * 2 * M + * M = 300; + * C = 30; + + */ +static unsigned long fb_get_hblank_by_dclk(unsigned long dclk, unsigned long xres) +{ + unsigned long duty_cycle, h_period, hblank; + dclk /= 1000; + h_period = 100 - C_VAL; + h_period *= h_period; + h_period += (M_VAL * xres * 2 * 1000)/(5 * dclk); + h_period *=10000; + h_period = int_sqrt(h_period); + h_period -= (100 - C_VAL) * 100; + h_period *= 1000; + h_period /= 2 * M_VAL; + duty_cycle = C_VAL * 1000 - (M_VAL * h_period)/100; + hblank = (xres * duty_cycle)/(100000 - duty_cycle) + 8; + hblank &= ~15; + return (hblank); +} + +/** + * fb_get_hfreq - estimate hsync + * @vfreq: vertical refresh rate + * @yres: vertical resolution + * + * DESCRIPTION: + * + * (yres + front_port) * vfreq * 1000000 + * hfreq = ------------------------------------- + * (1000000 - (vfreq * FLYBACK) + * + */ + +static unsigned long fb_get_hfreq(unsigned long vfreq, unsigned long yres) +{ + unsigned long divisor, hfreq; + divisor = (1000000 - (vfreq * FLYBACK))/1000; + hfreq = (yres + V_FRONTPORCH) * vfreq * 1000; + return (hfreq/divisor); +} + +static void fb_timings_vfreq(struct __fb_timings *timings) +{ + timings->hfreq = fb_get_hfreq(timings->vfreq, timings->vactive); + timings->vblank = fb_get_vblank(timings->hfreq); + timings->vtotal = timings->vactive + timings->vblank; + timings->hblank = fb_get_hblank_by_hfreq(timings->hfreq, + timings->hactive); + timings->htotal = timings->hactive + timings->hblank; + timings->dclk = timings->htotal * timings->hfreq; +} + +static void fb_timings_hfreq(struct __fb_timings *timings) +{ + timings->vblank = fb_get_vblank(timings->hfreq); + timings->vtotal = timings->vactive + timings->vblank; + timings->vfreq = timings->hfreq/timings->vtotal; + timings->hblank = fb_get_hblank_by_hfreq(timings->hfreq, timings->hactive); + timings->htotal = timings->hactive + timings->hblank; + timings->dclk = timings->htotal * timings->hfreq; +} + +static void fb_timings_dclk(struct __fb_timings *timings) +{ + timings->hblank = fb_get_hblank_by_dclk(timings->dclk, timings->hactive); + timings->htotal = timings->hactive + timings->hblank; + timings->hfreq = timings->dclk/timings->htotal; + timings->vblank = fb_get_vblank(timings->hfreq); + timings->vtotal = timings->vactive + timings->vblank; + timings->vfreq = timings->hfreq/timings->vtotal; +} + +/* + * fb_get_mode - calculates video mode using VESA GTF + * @flags: if: 0 - maximize vertical refresh rate + * 1 - vrefresh-driven calculation; + * 2 - hscan-driven calculation; + * 3 - pixelclock-driven calculation; + * @val: depending on @flags, ignored, vrefresh, hsync or pixelclock + * @var: pointer to fb_var_screeninfo + * @info: pointer to fb_info + * + * DESCRIPTION: + * Calculates video mode based on monitor specs using VESA GTF. + * The GTF is best for VESA GTF compliant monitors but is + * specifically formulated to work for older monitors as well. + * + * If @flag==0, the function will attempt to maximize the + * refresh rate. Otherwise, it will calculate timings based on + * the flag and accompanying value. + * + * If FB_IGNOREMON bit is set in @flags, monitor specs will be + * ignored and @var will be filled with the calculated timings. + * + * All calculations are based on the VESA GTF Spreadsheet + * available at VESA's public ftp (http://www.vesa.org). + * + * NOTES: + * The timings generated by the GTF will be different from VESA + * DMT. It might be a good idea to keep a table of standard + * VESA modes as well. The GTF may also not work for some displays, + * such as, and especially, analog TV. + * + * REQUIRES: + * A valid info->monspecs, otherwise 'safe numbers' will be used. + */ +int fb_get_mode(int flags, unsigned long val, struct fb_var_screeninfo *var, struct fb_info *info) +{ + struct __fb_timings timings; + unsigned long interlace = 1, dscan = 1; + unsigned long hfmin, hfmax, vfmin, vfmax, dclkmin, dclkmax; + /* + * If monspecs are invalid, use values that are enough + * for 640x480@60 + */ + if(!info->monspecs.hfmax || !info->monspecs.vfmax + || !info->monspecs.dclkmax || info->monspecs.hfmax < info->monspecs.hfmin + || info->monspecs.vfmax < info->monspecs.vfmin || info->monspecs.dclkmax < info->monspecs.dclkmin) + { + hfmin = 29000; hfmax = 30000; + vfmin = 60; vfmax = 60; + dclkmin = 0; dclkmax = 25000000; + } + else + { + hfmin = info->monspecs.hfmin; + hfmax = info->monspecs.hfmax; + vfmin = info->monspecs.vfmin; + vfmax = info->monspecs.vfmax; + dclkmin = info->monspecs.dclkmin; + dclkmax = info->monspecs.dclkmax; + } + memset((char *)&timings, 0, sizeof(struct __fb_timings)); + timings.hactive = var->xres; + timings.vactive = var->yres; + if(var->vmode & FB_VMODE_INTERLACED) + { + timings.vactive /= 2; + interlace = 2; + } + if(var->vmode & FB_VMODE_DOUBLE) + { + timings.vactive *= 2; + dscan = 2; + } + switch(flags & ~FB_IGNOREMON) + { + case FB_MAXTIMINGS: /* maximize refresh rate */ + timings.hfreq = hfmax; + fb_timings_hfreq(&timings); + if(timings.vfreq > vfmax) + { + timings.vfreq = vfmax; + fb_timings_vfreq(&timings); + } + if(timings.dclk > dclkmax) + { + timings.dclk = dclkmax; + fb_timings_dclk(&timings); + } + break; + case FB_VSYNCTIMINGS: /* vrefresh driven */ + timings.vfreq = val; + fb_timings_vfreq(&timings); + break; + case FB_HSYNCTIMINGS: /* hsync driven */ + timings.hfreq = val; + fb_timings_hfreq(&timings); + break; + case FB_DCLKTIMINGS: /* pixelclock driven */ + timings.dclk = PICOS2KHZ(val) * 1000; + fb_timings_dclk(&timings); + break; + default: + return -1; // -EINVAL; + } + if(!(flags & FB_IGNOREMON) + && (timings.vfreq < vfmin || timings.vfreq > vfmax + || timings.hfreq < hfmin || timings.hfreq > hfmax + || timings.dclk < dclkmin || timings.dclk > dclkmax)) + return -1; //-EINVAL; + var->pixclock = KHZ2PICOS(timings.dclk/1000); + var->hsync_len = (timings.htotal * 8)/100; + var->right_margin = (timings.hblank/2) - var->hsync_len; + var->left_margin = timings.hblank - var->right_margin - var->hsync_len; + var->vsync_len = (3 * interlace)/dscan; + var->lower_margin = (1 * interlace)/dscan; + var->upper_margin = (timings.vblank * interlace)/dscan - (var->vsync_len + var->lower_margin); + return 0; +} + +#else + +int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var) +{ + return 1; +} + +void fb_edid_to_monspecs(unsigned char *edid, struct fb_monspecs *specs) +{ + specs = NULL; +} + +void fb_destroy_modedb(struct fb_videomode *modedb) +{ +} + +int fb_get_mode(int flags, unsigned long val, struct fb_var_screeninfo *var, struct fb_info *info) +{ + return -1; // -EINVAL; +} + +#endif /* CONFIG_FB_MODE_HELPERS */ + +/* + * fb_validate_mode - validates var against monitor capabilities + * @var: pointer to fb_var_screeninfo + * @info: pointer to fb_info + * + * DESCRIPTION: + * Validates video mode against monitor capabilities specified in + * info->monspecs. + * + * REQUIRES: + * A valid info->monspecs. + */ +int fb_validate_mode(const struct fb_var_screeninfo *var, struct fb_info *info) +{ + unsigned long hfreq, vfreq, htotal, vtotal, pixclock; + unsigned long hfmin, hfmax, vfmin, vfmax, dclkmin, dclkmax; + /* + * If monspecs are invalid, use values that are enough + * for 640x480@60 + */ + if(!info->monspecs.hfmax || !info->monspecs.vfmax || !info->monspecs.dclkmax + || info->monspecs.hfmax < info->monspecs.hfmin + || info->monspecs.vfmax < info->monspecs.vfmin + || info->monspecs.dclkmax < info->monspecs.dclkmin) + { + hfmin = 29000; hfmax = 30000; + vfmin = 60; vfmax = 60; + dclkmin = 0; dclkmax = 25000000; + } + else + { + hfmin = info->monspecs.hfmin; + hfmax = info->monspecs.hfmax; + vfmin = info->monspecs.vfmin; + vfmax = info->monspecs.vfmax; + dclkmin = info->monspecs.dclkmin; + dclkmax = info->monspecs.dclkmax; + } + if(!var->pixclock) + return -1; // -EINVAL; + pixclock = PICOS2KHZ(var->pixclock) * 1000; + htotal = var->xres + var->right_margin + var->hsync_len + var->left_margin; + vtotal = var->yres + var->lower_margin + var->vsync_len + var->upper_margin; + if(var->vmode & FB_VMODE_INTERLACED) + vtotal /= 2; + if(var->vmode & FB_VMODE_DOUBLE) + vtotal *= 2; + hfreq = pixclock/htotal; + vfreq = hfreq/vtotal; + return (vfreq < vfmin || vfreq > vfmax || hfreq < hfmin || hfreq > hfmax + || pixclock < dclkmin || pixclock > dclkmax) ? -1 /* -EINVAL */ : 0; +} +