/* * linux/drivers/video/macmodes.c -- Standard MacOS video modes * * Copyright (C) 1998 Geert Uytterhoeven * * 2000 - Removal of OpenFirmware dependencies by: * - Ani Joshi * - Brad Douglas <brad@neruo.com> * * 2001 - Documented with DocBook * - Brad Douglas <brad@neruo.com> * * 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/errno.h>#include <linux/export.h>#include <linux/fb.h>#include <linux/string.h>#include <linux/module.h> #include "macmodes.h" /* * MacOS video mode definitions * * Order IS important! If you change these, don't forget to update * mac_modes[] below! */ #define DEFAULT_MODEDB_INDEX 0 static const struct fb_videomode mac_modedb[] = { { /* 512x384, 60Hz, Non-Interlaced (15.67 MHz dot clock) */ "mac2", 60, 512, 384, 63828, 80, 16, 19, 1, 32, 3, 0, FB_VMODE_NONINTERLACED }, { /* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */ "mac5", 60, 640, 480, 39722, 32, 32, 33, 10, 96, 2, 0, FB_VMODE_NONINTERLACED }, { /* 640x480, 67Hz, Non-Interlaced (30.0 MHz dotclock) */ "mac6", 67, 640, 480, 33334, 80, 80, 39, 3, 64, 3, 0, FB_VMODE_NONINTERLACED }, { /* 640x870, 75Hz (portrait), Non-Interlaced (57.28 MHz dot clock) */ "mac7", 75, 640, 870, 17457, 80, 32, 42, 3, 80, 3, 0, FB_VMODE_NONINTERLACED }, { /* 800x600, 56 Hz, Non-Interlaced (36.00 MHz dotclock) */ "mac9", 56, 800, 600, 27778, 112, 40, 22, 1, 72, 2, FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED }, { /* 800x600, 60 Hz, Non-Interlaced (40.00 MHz dotclock) */ "mac10", 60, 800, 600, 25000, 72, 56, 23, 1, 128, 4, FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED }, { /* 800x600, 72 Hz, Non-Interlaced (50.00 MHz dotclock) */ "mac11", 72, 800, 600, 20000, 48, 72, 23, 37, 120, 6, FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED }, { /* 800x600, 75 Hz, Non-Interlaced (49.50 MHz dotclock) */ "mac12", 75, 800, 600, 20203, 144, 32, 21, 1, 80, 3, FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED }, { /* 832x624, 75Hz, Non-Interlaced (57.6 MHz dotclock) */ "mac13", 75, 832, 624, 17362, 208, 48, 39, 1, 64, 3, 0, FB_VMODE_NONINTERLACED }, { /* 1024x768, 60 Hz, Non-Interlaced (65.00 MHz dotclock) */ "mac14", 60, 1024, 768, 15385, 144, 40, 29, 3, 136, 6, 0, FB_VMODE_NONINTERLACED }, { /* 1024x768, 72 Hz, Non-Interlaced (75.00 MHz dotclock) */ "mac15", 72, 1024, 768, 13334, 128, 40, 29, 3, 136, 6, 0, FB_VMODE_NONINTERLACED }, { /* 1024x768, 75 Hz, Non-Interlaced (78.75 MHz dotclock) */ "mac16", 75, 1024, 768, 12699, 176, 16, 28, 1, 96, 3, FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED }, { /* 1024x768, 75 Hz, Non-Interlaced (78.75 MHz dotclock) */ "mac17", 75, 1024, 768, 12699, 160, 32, 28, 1, 96, 3, FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED }, { /* 1152x870, 75 Hz, Non-Interlaced (100.0 MHz dotclock) */ "mac18", 75, 1152, 870, 10000, 128, 48, 39, 3, 128, 3, FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED }, { /* 1280x960, 75 Hz, Non-Interlaced (126.00 MHz dotclock) */ "mac19", 75, 1280, 960, 7937, 224, 32, 36, 1, 144, 3, 0, FB_VMODE_NONINTERLACED }, { /* 1280x1024, 75 Hz, Non-Interlaced (135.00 MHz dotclock) */ "mac20", 75, 1280, 1024, 7408, 232, 64, 38, 1, 112, 3, FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED }, { /* 1152x768, 60 Hz, Titanium PowerBook */ "mac21", 60, 1152, 768, 15386, 158, 26, 29, 3, 136, 6, FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED }, { /* 1600x1024, 60 Hz, Non-Interlaced (112.27 MHz dotclock) */ "mac22", 60, 1600, 1024, 8908, 88, 104, 1, 10, 16, 1, FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED } #if 0 /* Anyone who has timings for these? */ { /* VMODE_512_384_60I: 512x384, 60Hz, Interlaced (NTSC) */ "mac1", 60, 512, 384, pixclock, left, right, upper, lower, hslen, vslen, sync, FB_VMODE_INTERLACED }, { /* VMODE_640_480_50I: 640x480, 50Hz, Interlaced (PAL) */ "mac3", 50, 640, 480, pixclock, left, right, upper, lower, hslen, vslen, sync, FB_VMODE_INTERLACED }, { /* VMODE_640_480_60I: 640x480, 60Hz, Interlaced (NTSC) */ "mac4", 60, 640, 480, pixclock, left, right, upper, lower, hslen, vslen, sync, FB_VMODE_INTERLACED }, { /* VMODE_768_576_50I: 768x576, 50Hz (PAL full frame), Interlaced */ "mac8", 50, 768, 576, pixclock, left, right, upper, lower, hslen, vslen, sync, FB_VMODE_INTERLACED },#endif}; /* * Mapping between MacOS video mode numbers and video mode definitions * * These MUST be ordered in * - increasing resolution * - decreasing pixel clock period */ static const struct mode_map { int vmode; const struct fb_videomode *mode;} mac_modes[] = { /* 512x384 */ { VMODE_512_384_60, &mac_modedb[0] }, /* 640x480 */ { VMODE_640_480_60, &mac_modedb[1] }, { VMODE_640_480_67, &mac_modedb[2] }, /* 640x870 */ { VMODE_640_870_75P, &mac_modedb[3] }, /* 800x600 */ { VMODE_800_600_56, &mac_modedb[4] }, { VMODE_800_600_60, &mac_modedb[5] }, { VMODE_800_600_75, &mac_modedb[7] }, { VMODE_800_600_72, &mac_modedb[6] }, /* 832x624 */ { VMODE_832_624_75, &mac_modedb[8] }, /* 1024x768 */ { VMODE_1024_768_60, &mac_modedb[9] }, { VMODE_1024_768_70, &mac_modedb[10] }, { VMODE_1024_768_75V, &mac_modedb[11] }, { VMODE_1024_768_75, &mac_modedb[12] }, /* 1152x768 */ { VMODE_1152_768_60, &mac_modedb[16] }, /* 1152x870 */ { VMODE_1152_870_75, &mac_modedb[13] }, /* 1280x960 */ { VMODE_1280_960_75, &mac_modedb[14] }, /* 1280x1024 */ { VMODE_1280_1024_75, &mac_modedb[15] }, /* 1600x1024 */ { VMODE_1600_1024_60, &mac_modedb[17] }, { -1, NULL }}; /* * Mapping between monitor sense values and MacOS video mode numbers */ static const struct monitor_map { int sense; int vmode;} mac_monitors[] = { { 0x000, VMODE_1280_1024_75 }, /* 21" RGB */ { 0x114, VMODE_640_870_75P }, /* Portrait Monochrome */ { 0x221, VMODE_512_384_60 }, /* 12" RGB*/ { 0x331, VMODE_1280_1024_75 }, /* 21" RGB (Radius) */ { 0x334, VMODE_1280_1024_75 }, /* 21" mono (Radius) */ { 0x335, VMODE_1280_1024_75 }, /* 21" mono */ { 0x40A, VMODE_640_480_60I }, /* NTSC */ { 0x51E, VMODE_640_870_75P }, /* Portrait RGB */ { 0x603, VMODE_832_624_75 }, /* 12"-16" multiscan */ { 0x60b, VMODE_1024_768_70 }, /* 13"-19" multiscan */ { 0x623, VMODE_1152_870_75 }, /* 13"-21" multiscan */ { 0x62b, VMODE_640_480_67 }, /* 13"/14" RGB */ { 0x700, VMODE_640_480_50I }, /* PAL */ { 0x714, VMODE_640_480_60I }, /* NTSC */ { 0x717, VMODE_800_600_75 }, /* VGA */ { 0x72d, VMODE_832_624_75 }, /* 16" RGB (Goldfish) */ { 0x730, VMODE_768_576_50I }, /* PAL (Alternate) */ { 0x73a, VMODE_1152_870_75 }, /* 3rd party 19" */ { 0x73f, VMODE_640_480_67 }, /* no sense lines connected at all */ { 0xBEEF, VMODE_1600_1024_60 }, /* 22" Apple Cinema Display */ { -1, VMODE_640_480_60 }, /* catch-all, must be last */}; /** * mac_vmode_to_var - converts vmode/cmode pair to var structure * @vmode: MacOS video mode * @cmode: MacOS color mode * @var: frame buffer video mode structure * * Converts a MacOS vmode/cmode pair to a frame buffer video * mode structure. * * Returns negative errno on error, or zero for success. * */ int mac_vmode_to_var(int vmode, int cmode, struct fb_var_screeninfo *var){ const struct fb_videomode *mode = NULL; const struct mode_map *map; for (map = mac_modes; map->vmode != -1; map++) if (map->vmode == vmode) { mode = map->mode; break; } if (!mode) return -EINVAL; memset(var, 0, sizeof(struct fb_var_screeninfo)); switch (cmode) { case CMODE_8: var->bits_per_pixel = 8; var->red.offset = 0; var->red.length = 8; var->green.offset = 0; var->green.length = 8; var->blue.offset = 0; var->blue.length = 8; break; case CMODE_16: var->bits_per_pixel = 16; var->red.offset = 10; var->red.length = 5; var->green.offset = 5; var->green.length = 5; var->blue.offset = 0; var->blue.length = 5; break; case CMODE_32: var->bits_per_pixel = 32; var->red.offset = 16; var->red.length = 8; var->green.offset = 8; var->green.length = 8; var->blue.offset = 0; var->blue.length = 8; var->transp.offset = 24; var->transp.length = 8; break; default: return -EINVAL; } var->xres = mode->xres; var->yres = mode->yres; var->xres_virtual = mode->xres; var->yres_virtual = mode->yres; var->height = -1; var->width = -1; 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; return 0;}EXPORT_SYMBOL(mac_vmode_to_var); /** * mac_var_to_vmode - convert var structure to MacOS vmode/cmode pair * @var: frame buffer video mode structure * @vmode: MacOS video mode * @cmode: MacOS color mode * * Converts a frame buffer video mode structure to a MacOS * vmode/cmode pair. * * Returns negative errno on error, or zero for success. * */ int mac_var_to_vmode(const struct fb_var_screeninfo *var, int *vmode, int *cmode){ const struct mode_map *map; if (var->bits_per_pixel <= 8) *cmode = CMODE_8; else if (var->bits_per_pixel <= 16) *cmode = CMODE_16; else if (var->bits_per_pixel <= 32) *cmode = CMODE_32; else return -EINVAL; /* * Find the mac_mode with a matching resolution or failing that, the * closest larger resolution. Skip modes with a shorter pixel clock period. */ for (map = mac_modes; map->vmode != -1; map++) { const struct fb_videomode *mode = map->mode; if (var->xres > mode->xres || var->yres > mode->yres) continue; if (var->xres_virtual > mode->xres || var->yres_virtual > mode->yres) continue; if (var->pixclock > mode->pixclock) continue; if ((var->vmode & FB_VMODE_MASK) != mode->vmode) continue; *vmode = map->vmode; /* * Having found a good resolution, find the matching pixel clock * or failing that, the closest longer pixel clock period. */ map++; while (map->vmode != -1) { const struct fb_videomode *clk_mode = map->mode; if (mode->xres != clk_mode->xres || mode->yres != clk_mode->yres) break; if (var->pixclock > mode->pixclock) break; if (mode->vmode != clk_mode->vmode) continue; *vmode = map->vmode; map++; } return 0; } return -EINVAL;} /** * mac_map_monitor_sense - Convert monitor sense to vmode * @sense: Macintosh monitor sense number * * Converts a Macintosh monitor sense number to a MacOS * vmode number. * * Returns MacOS vmode video mode number. * */ int mac_map_monitor_sense(int sense){ const struct monitor_map *map; for (map = mac_monitors; map->sense != -1; map++) if (map->sense == sense) break; return map->vmode;}EXPORT_SYMBOL(mac_map_monitor_sense); /** * mac_find_mode - find a video mode * @var: frame buffer user defined part of display * @info: frame buffer info structure * @mode_option: video mode name (see mac_modedb[]) * @default_bpp: default color depth in bits per pixel * * Finds a suitable video mode. Tries to set mode specified * by @mode_option. If the name of the wanted mode begins with * 'mac', the Mac video mode database will be used, otherwise it * will fall back to the standard video mode database. * * Note: Function marked as __init and can only be used during * system boot. * * Returns error code from fb_find_mode (see fb_find_mode * function). * */ int mac_find_mode(struct fb_var_screeninfo *var, struct fb_info *info, const char *mode_option, unsigned int default_bpp){ const struct fb_videomode *db = NULL; unsigned int dbsize = 0; if (mode_option && !strncmp(mode_option, "mac", 3)) { mode_option += 3; db = mac_modedb; dbsize = ARRAY_SIZE(mac_modedb); } return fb_find_mode(var, info, mode_option, db, dbsize, &mac_modedb[DEFAULT_MODEDB_INDEX], default_bpp);}EXPORT_SYMBOL(mac_find_mode); MODULE_DESCRIPTION("MacOS video mode library");MODULE_LICENSE("GPL");
/*
* linux/drivers/video/macmodes.c -- Standard MacOS video modes
*
* Copyright (C) 1998 Geert Uytterhoeven
*
* 2000 - Removal of OpenFirmware dependencies by:
* - Ani Joshi
* - Brad Douglas <brad@neruo.com>
*
* 2001 - Documented with DocBook
* - Brad Douglas <brad@neruo.com>
*
* 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/errno.h>
#include <linux/export.h>
#include <linux/fb.h>
#include <linux/string.h>
#include <linux/module.h>
#include "macmodes.h"
/*
* MacOS video mode definitions
*
* Order IS important! If you change these, don't forget to update
* mac_modes[] below!
*/
#define DEFAULT_MODEDB_INDEX 0
static const struct fb_videomode mac_modedb[] = {
{
/* 512x384, 60Hz, Non-Interlaced (15.67 MHz dot clock) */
"mac2", 60, 512, 384, 63828, 80, 16, 19, 1, 32, 3,
0, FB_VMODE_NONINTERLACED
}, {
/* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */
"mac5", 60, 640, 480, 39722, 32, 32, 33, 10, 96, 2,
0, FB_VMODE_NONINTERLACED
}, {
/* 640x480, 67Hz, Non-Interlaced (30.0 MHz dotclock) */
"mac6", 67, 640, 480, 33334, 80, 80, 39, 3, 64, 3,
0, FB_VMODE_NONINTERLACED
}, {
/* 640x870, 75Hz (portrait), Non-Interlaced (57.28 MHz dot clock) */
"mac7", 75, 640, 870, 17457, 80, 32, 42, 3, 80, 3,
0, FB_VMODE_NONINTERLACED
}, {
/* 800x600, 56 Hz, Non-Interlaced (36.00 MHz dotclock) */
"mac9", 56, 800, 600, 27778, 112, 40, 22, 1, 72, 2,
FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 800x600, 60 Hz, Non-Interlaced (40.00 MHz dotclock) */
"mac10", 60, 800, 600, 25000, 72, 56, 23, 1, 128, 4,
FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 800x600, 72 Hz, Non-Interlaced (50.00 MHz dotclock) */
"mac11", 72, 800, 600, 20000, 48, 72, 23, 37, 120, 6,
FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 800x600, 75 Hz, Non-Interlaced (49.50 MHz dotclock) */
"mac12", 75, 800, 600, 20203, 144, 32, 21, 1, 80, 3,
FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 832x624, 75Hz, Non-Interlaced (57.6 MHz dotclock) */
"mac13", 75, 832, 624, 17362, 208, 48, 39, 1, 64, 3,
0, FB_VMODE_NONINTERLACED
}, {
/* 1024x768, 60 Hz, Non-Interlaced (65.00 MHz dotclock) */
"mac14", 60, 1024, 768, 15385, 144, 40, 29, 3, 136, 6,
0, FB_VMODE_NONINTERLACED
}, {
/* 1024x768, 72 Hz, Non-Interlaced (75.00 MHz dotclock) */
"mac15", 72, 1024, 768, 13334, 128, 40, 29, 3, 136, 6,
0, FB_VMODE_NONINTERLACED
}, {
/* 1024x768, 75 Hz, Non-Interlaced (78.75 MHz dotclock) */
"mac16", 75, 1024, 768, 12699, 176, 16, 28, 1, 96, 3,
FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1024x768, 75 Hz, Non-Interlaced (78.75 MHz dotclock) */
"mac17", 75, 1024, 768, 12699, 160, 32, 28, 1, 96, 3,
FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1152x870, 75 Hz, Non-Interlaced (100.0 MHz dotclock) */
"mac18", 75, 1152, 870, 10000, 128, 48, 39, 3, 128, 3,
FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1280x960, 75 Hz, Non-Interlaced (126.00 MHz dotclock) */
"mac19", 75, 1280, 960, 7937, 224, 32, 36, 1, 144, 3,
0, FB_VMODE_NONINTERLACED
}, {
/* 1280x1024, 75 Hz, Non-Interlaced (135.00 MHz dotclock) */
"mac20", 75, 1280, 1024, 7408, 232, 64, 38, 1, 112, 3,
FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1152x768, 60 Hz, Titanium PowerBook */
"mac21", 60, 1152, 768, 15386, 158, 26, 29, 3, 136, 6,
FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}, {
/* 1600x1024, 60 Hz, Non-Interlaced (112.27 MHz dotclock) */
"mac22", 60, 1600, 1024, 8908, 88, 104, 1, 10, 16, 1,
FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
}
#if 0
/* Anyone who has timings for these? */
{
/* VMODE_512_384_60I: 512x384, 60Hz, Interlaced (NTSC) */
"mac1", 60, 512, 384, pixclock, left, right, upper, lower, hslen, vslen,
sync, FB_VMODE_INTERLACED
}, {
/* VMODE_640_480_50I: 640x480, 50Hz, Interlaced (PAL) */
"mac3", 50, 640, 480, pixclock, left, right, upper, lower, hslen, vslen,
sync, FB_VMODE_INTERLACED
}, {
/* VMODE_640_480_60I: 640x480, 60Hz, Interlaced (NTSC) */
"mac4", 60, 640, 480, pixclock, left, right, upper, lower, hslen, vslen,
sync, FB_VMODE_INTERLACED
}, {
/* VMODE_768_576_50I: 768x576, 50Hz (PAL full frame), Interlaced */
"mac8", 50, 768, 576, pixclock, left, right, upper, lower, hslen, vslen,
sync, FB_VMODE_INTERLACED
},
#endif
};
/*
* Mapping between MacOS video mode numbers and video mode definitions
*
* These MUST be ordered in
* - increasing resolution
* - decreasing pixel clock period
*/
static const struct mode_map {
int vmode;
const struct fb_videomode *mode;
} mac_modes[] = {
/* 512x384 */
{ VMODE_512_384_60, &mac_modedb[0] },
/* 640x480 */
{ VMODE_640_480_60, &mac_modedb[1] },
{ VMODE_640_480_67, &mac_modedb[2] },
/* 640x870 */
{ VMODE_640_870_75P, &mac_modedb[3] },
/* 800x600 */
{ VMODE_800_600_56, &mac_modedb[4] },
{ VMODE_800_600_60, &mac_modedb[5] },
{ VMODE_800_600_75, &mac_modedb[7] },
{ VMODE_800_600_72, &mac_modedb[6] },
/* 832x624 */
{ VMODE_832_624_75, &mac_modedb[8] },
/* 1024x768 */
{ VMODE_1024_768_60, &mac_modedb[9] },
{ VMODE_1024_768_70, &mac_modedb[10] },
{ VMODE_1024_768_75V, &mac_modedb[11] },
{ VMODE_1024_768_75, &mac_modedb[12] },
/* 1152x768 */
{ VMODE_1152_768_60, &mac_modedb[16] },
/* 1152x870 */
{ VMODE_1152_870_75, &mac_modedb[13] },
/* 1280x960 */
{ VMODE_1280_960_75, &mac_modedb[14] },
/* 1280x1024 */
{ VMODE_1280_1024_75, &mac_modedb[15] },
/* 1600x1024 */
{ VMODE_1600_1024_60, &mac_modedb[17] },
{ -1, NULL }
};
/*
* Mapping between monitor sense values and MacOS video mode numbers
*/
static const struct monitor_map {
int sense;
int vmode;
} mac_monitors[] = {
{ 0x000, VMODE_1280_1024_75 }, /* 21" RGB */
{ 0x114, VMODE_640_870_75P }, /* Portrait Monochrome */
{ 0x221, VMODE_512_384_60 }, /* 12" RGB*/
{ 0x331, VMODE_1280_1024_75 }, /* 21" RGB (Radius) */
{ 0x334, VMODE_1280_1024_75 }, /* 21" mono (Radius) */
{ 0x335, VMODE_1280_1024_75 }, /* 21" mono */
{ 0x40A, VMODE_640_480_60I }, /* NTSC */
{ 0x51E, VMODE_640_870_75P }, /* Portrait RGB */
{ 0x603, VMODE_832_624_75 }, /* 12"-16" multiscan */
{ 0x60b, VMODE_1024_768_70 }, /* 13"-19" multiscan */
{ 0x623, VMODE_1152_870_75 }, /* 13"-21" multiscan */
{ 0x62b, VMODE_640_480_67 }, /* 13"/14" RGB */
{ 0x700, VMODE_640_480_50I }, /* PAL */
{ 0x714, VMODE_640_480_60I }, /* NTSC */
{ 0x717, VMODE_800_600_75 }, /* VGA */
{ 0x72d, VMODE_832_624_75 }, /* 16" RGB (Goldfish) */
{ 0x730, VMODE_768_576_50I }, /* PAL (Alternate) */
{ 0x73a, VMODE_1152_870_75 }, /* 3rd party 19" */
{ 0x73f, VMODE_640_480_67 }, /* no sense lines connected at all */
{ 0xBEEF, VMODE_1600_1024_60 }, /* 22" Apple Cinema Display */
{ -1, VMODE_640_480_60 }, /* catch-all, must be last */
};
/**
* mac_vmode_to_var - converts vmode/cmode pair to var structure
* @vmode: MacOS video mode
* @cmode: MacOS color mode
* @var: frame buffer video mode structure
*
* Converts a MacOS vmode/cmode pair to a frame buffer video
* mode structure.
*
* Returns negative errno on error, or zero for success.
*
*/
int mac_vmode_to_var(int vmode, int cmode, struct fb_var_screeninfo *var)
{
const struct fb_videomode *mode = NULL;
const struct mode_map *map;
for (map = mac_modes; map->vmode != -1; map++)
if (map->vmode == vmode) {
mode = map->mode;
break;
}
if (!mode)
return -EINVAL;
memset(var, 0, sizeof(struct fb_var_screeninfo));
switch (cmode) {
case CMODE_8:
var->bits_per_pixel = 8;
var->red.offset = 0;
var->red.length = 8;
var->green.offset = 0;
var->green.length = 8;
var->blue.offset = 0;
var->blue.length = 8;
break;
case CMODE_16:
var->bits_per_pixel = 16;
var->red.offset = 10;
var->red.length = 5;
var->green.offset = 5;
var->green.length = 5;
var->blue.offset = 0;
var->blue.length = 5;
break;
case CMODE_32:
var->bits_per_pixel = 32;
var->red.offset = 16;
var->red.length = 8;
var->green.offset = 8;
var->green.length = 8;
var->blue.offset = 0;
var->blue.length = 8;
var->transp.offset = 24;
var->transp.length = 8;
break;
default:
return -EINVAL;
}
var->xres = mode->xres;
var->yres = mode->yres;
var->xres_virtual = mode->xres;
var->yres_virtual = mode->yres;
var->height = -1;
var->width = -1;
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;
return 0;
}
EXPORT_SYMBOL(mac_vmode_to_var);
/**
* mac_var_to_vmode - convert var structure to MacOS vmode/cmode pair
* @var: frame buffer video mode structure
* @vmode: MacOS video mode
* @cmode: MacOS color mode
*
* Converts a frame buffer video mode structure to a MacOS
* vmode/cmode pair.
*
* Returns negative errno on error, or zero for success.
*
*/
int mac_var_to_vmode(const struct fb_var_screeninfo *var, int *vmode,
int *cmode)
{
const struct mode_map *map;
if (var->bits_per_pixel <= 8)
*cmode = CMODE_8;
else if (var->bits_per_pixel <= 16)
*cmode = CMODE_16;
else if (var->bits_per_pixel <= 32)
*cmode = CMODE_32;
else
return -EINVAL;
/*
* Find the mac_mode with a matching resolution or failing that, the
* closest larger resolution. Skip modes with a shorter pixel clock period.
*/
for (map = mac_modes; map->vmode != -1; map++) {
const struct fb_videomode *mode = map->mode;
if (var->xres > mode->xres || var->yres > mode->yres)
continue;
if (var->xres_virtual > mode->xres || var->yres_virtual > mode->yres)
continue;
if (var->pixclock > mode->pixclock)
continue;
if ((var->vmode & FB_VMODE_MASK) != mode->vmode)
continue;
*vmode = map->vmode;
/*
* Having found a good resolution, find the matching pixel clock
* or failing that, the closest longer pixel clock period.
*/
map++;
while (map->vmode != -1) {
const struct fb_videomode *clk_mode = map->mode;
if (mode->xres != clk_mode->xres || mode->yres != clk_mode->yres)
break;
if (var->pixclock > mode->pixclock)
break;
if (mode->vmode != clk_mode->vmode)
continue;
*vmode = map->vmode;
map++;
}
return 0;
}
return -EINVAL;
}
/**
* mac_map_monitor_sense - Convert monitor sense to vmode
* @sense: Macintosh monitor sense number
*
* Converts a Macintosh monitor sense number to a MacOS
* vmode number.
*
* Returns MacOS vmode video mode number.
*
*/
int mac_map_monitor_sense(int sense)
{
const struct monitor_map *map;
for (map = mac_monitors; map->sense != -1; map++)
if (map->sense == sense)
break;
return map->vmode;
}
EXPORT_SYMBOL(mac_map_monitor_sense);
/**
* mac_find_mode - find a video mode
* @var: frame buffer user defined part of display
* @info: frame buffer info structure
* @mode_option: video mode name (see mac_modedb[])
* @default_bpp: default color depth in bits per pixel
*
* Finds a suitable video mode. Tries to set mode specified
* by @mode_option. If the name of the wanted mode begins with
* 'mac', the Mac video mode database will be used, otherwise it
* will fall back to the standard video mode database.
*
* Note: Function marked as __init and can only be used during
* system boot.
*
* Returns error code from fb_find_mode (see fb_find_mode
* function).
*
*/
int mac_find_mode(struct fb_var_screeninfo *var, struct fb_info *info,
const char *mode_option, unsigned int default_bpp)
{
const struct fb_videomode *db = NULL;
unsigned int dbsize = 0;
if (mode_option && !strncmp(mode_option, "mac", 3)) {
mode_option += 3;
db = mac_modedb;
dbsize = ARRAY_SIZE(mac_modedb);
}
return fb_find_mode(var, info, mode_option, db, dbsize,
&mac_modedb[DEFAULT_MODEDB_INDEX], default_bpp);
}
EXPORT_SYMBOL(mac_find_mode);
MODULE_DESCRIPTION("MacOS video mode library");
MODULE_LICENSE("GPL");