2 * linux/drivers/video/macmodes.c -- Standard MacOS video modes
4 * Copyright (C) 1998 Geert Uytterhoeven
6 * 2000 - Removal of OpenFirmware dependencies by:
8 * - Brad Douglas <brad@neruo.com>
10 * 2001 - Documented with DocBook
11 * - Brad Douglas <brad@neruo.com>
13 * This file is subject to the terms and conditions of the GNU General Public
14 * License. See the file COPYING in the main directory of this archive for
18 #include <linux/config.h>
19 #include <linux/errno.h>
21 #include <linux/string.h>
22 #include <linux/module.h>
27 * MacOS video mode definitions
29 * Order IS important! If you change these, don't forget to update
33 #define DEFAULT_MODEDB_INDEX 0
35 static const struct fb_videomode mac_modedb[] = {
37 /* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */
38 "mac5", 60, 640, 480, 39722, 32, 32, 33, 10, 96, 2,
39 0, FB_VMODE_NONINTERLACED
41 /* 640x480, 67Hz, Non-Interlaced (30.0 MHz dotclock) */
42 "mac6", 67, 640, 480, 33334, 80, 80, 39, 3, 64, 3,
43 0, FB_VMODE_NONINTERLACED
45 /* 800x600, 56 Hz, Non-Interlaced (36.00 MHz dotclock) */
46 "mac9", 56, 800, 600, 27778, 112, 40, 22, 1, 72, 2,
47 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
49 /* 800x600, 60 Hz, Non-Interlaced (40.00 MHz dotclock) */
50 "mac10", 60, 800, 600, 25000, 72, 56, 23, 1, 128, 4,
51 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
53 /* 800x600, 72 Hz, Non-Interlaced (50.00 MHz dotclock) */
54 "mac11", 72, 800, 600, 20000, 48, 72, 23, 37, 120, 6,
55 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
57 /* 800x600, 75 Hz, Non-Interlaced (49.50 MHz dotclock) */
58 "mac12", 75, 800, 600, 20203, 144, 32, 21, 1, 80, 3,
59 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
61 /* 832x624, 75Hz, Non-Interlaced (57.6 MHz dotclock) */
62 "mac13", 75, 832, 624, 17362, 208, 48, 39, 1, 64, 3,
63 0, FB_VMODE_NONINTERLACED
65 /* 1024x768, 60 Hz, Non-Interlaced (65.00 MHz dotclock) */
66 "mac14", 60, 1024, 768, 15385, 144, 40, 29, 3, 136, 6,
67 0, FB_VMODE_NONINTERLACED
69 /* 1024x768, 72 Hz, Non-Interlaced (75.00 MHz dotclock) */
70 "mac15", 72, 1024, 768, 13334, 128, 40, 29, 3, 136, 6,
71 0, FB_VMODE_NONINTERLACED
73 /* 1024x768, 75 Hz, Non-Interlaced (78.75 MHz dotclock) */
74 "mac16", 75, 1024, 768, 12699, 176, 16, 28, 1, 96, 3,
75 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
77 /* 1024x768, 75 Hz, Non-Interlaced (78.75 MHz dotclock) */
78 "mac17", 75, 1024, 768, 12699, 160, 32, 28, 1, 96, 3,
79 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
81 /* 1152x870, 75 Hz, Non-Interlaced (100.0 MHz dotclock) */
82 "mac18", 75, 1152, 870, 10000, 128, 48, 39, 3, 128, 3,
83 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
85 /* 1280x960, 75 Hz, Non-Interlaced (126.00 MHz dotclock) */
86 "mac19", 75, 1280, 960, 7937, 224, 32, 36, 1, 144, 3,
87 0, FB_VMODE_NONINTERLACED
89 /* 1280x1024, 75 Hz, Non-Interlaced (135.00 MHz dotclock) */
90 "mac20", 75, 1280, 1024, 7408, 232, 64, 38, 1, 112, 3,
91 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
93 /* 1152x768, 60 Hz, Titanium PowerBook */
94 "mac21", 60, 1152, 768, 15386, 158, 26, 29, 3, 136, 6,
95 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
97 /* 1600x1024, 60 Hz, Non-Interlaced (112.27 MHz dotclock) */
98 "mac22", 60, 1600, 1024, 8908, 88, 104, 1, 10, 16, 1,
99 FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
103 /* Anyone who has timings for these? */
105 /* VMODE_512_384_60I: 512x384, 60Hz, Interlaced (NTSC) */
106 "mac1", 60, 512, 384, pixclock, left, right, upper, lower, hslen, vslen,
107 sync, FB_VMODE_INTERLACED
109 /* VMODE_512_384_60: 512x384, 60Hz, Non-Interlaced */
110 "mac2", 60, 512, 384, pixclock, left, right, upper, lower, hslen, vslen,
111 sync, FB_VMODE_NONINTERLACED
113 /* VMODE_640_480_50I: 640x480, 50Hz, Interlaced (PAL) */
114 "mac3", 50, 640, 480, pixclock, left, right, upper, lower, hslen, vslen,
115 sync, FB_VMODE_INTERLACED
117 /* VMODE_640_480_60I: 640x480, 60Hz, Interlaced (NTSC) */
118 "mac4", 60, 640, 480, pixclock, left, right, upper, lower, hslen, vslen,
119 sync, FB_VMODE_INTERLACED
121 /* VMODE_640_870_75P: 640x870, 75Hz (portrait), Non-Interlaced */
122 "mac7", 75, 640, 870, pixclock, left, right, upper, lower, hslen, vslen,
123 sync, FB_VMODE_NONINTERLACED
125 /* VMODE_768_576_50I: 768x576, 50Hz (PAL full frame), Interlaced */
126 "mac8", 50, 768, 576, pixclock, left, right, upper, lower, hslen, vslen,
127 sync, FB_VMODE_INTERLACED
134 * Mapping between MacOS video mode numbers and video mode definitions
136 * These MUST be ordered in
137 * - increasing resolution
138 * - decreasing refresh rate
141 static const struct mode_map {
143 const struct fb_videomode *mode;
146 { VMODE_640_480_67, &mac_modedb[1] },
147 { VMODE_640_480_60, &mac_modedb[0] },
149 { VMODE_800_600_75, &mac_modedb[5] },
150 { VMODE_800_600_72, &mac_modedb[4] },
151 { VMODE_800_600_60, &mac_modedb[3] },
152 { VMODE_800_600_56, &mac_modedb[2] },
154 { VMODE_832_624_75, &mac_modedb[6] },
156 { VMODE_1024_768_75, &mac_modedb[10] },
157 { VMODE_1024_768_75V, &mac_modedb[9] },
158 { VMODE_1024_768_70, &mac_modedb[8] },
159 { VMODE_1024_768_60, &mac_modedb[7] },
161 { VMODE_1152_768_60, &mac_modedb[14] },
163 { VMODE_1152_870_75, &mac_modedb[11] },
165 { VMODE_1280_960_75, &mac_modedb[12] },
167 { VMODE_1280_1024_75, &mac_modedb[13] },
169 { VMODE_1600_1024_60, &mac_modedb[15] },
175 * Mapping between monitor sense values and MacOS video mode numbers
178 static const struct monitor_map {
182 { 0x000, VMODE_1280_1024_75 }, /* 21" RGB */
183 { 0x114, VMODE_640_870_75P }, /* Portrait Monochrome */
184 { 0x221, VMODE_512_384_60 }, /* 12" RGB*/
185 { 0x331, VMODE_1280_1024_75 }, /* 21" RGB (Radius) */
186 { 0x334, VMODE_1280_1024_75 }, /* 21" mono (Radius) */
187 { 0x335, VMODE_1280_1024_75 }, /* 21" mono */
188 { 0x40A, VMODE_640_480_60I }, /* NTSC */
189 { 0x51E, VMODE_640_870_75P }, /* Portrait RGB */
190 { 0x603, VMODE_832_624_75 }, /* 12"-16" multiscan */
191 { 0x60b, VMODE_1024_768_70 }, /* 13"-19" multiscan */
192 { 0x623, VMODE_1152_870_75 }, /* 13"-21" multiscan */
193 { 0x62b, VMODE_640_480_67 }, /* 13"/14" RGB */
194 { 0x700, VMODE_640_480_50I }, /* PAL */
195 { 0x714, VMODE_640_480_60I }, /* NTSC */
196 { 0x717, VMODE_800_600_75 }, /* VGA */
197 { 0x72d, VMODE_832_624_75 }, /* 16" RGB (Goldfish) */
198 { 0x730, VMODE_768_576_50I }, /* PAL (Alternate) */
199 { 0x73a, VMODE_1152_870_75 }, /* 3rd party 19" */
200 { 0x73f, VMODE_640_480_67 }, /* no sense lines connected at all */
201 { 0xBEEF, VMODE_1600_1024_60 }, /* 22" Apple Cinema Display */
202 { -1, VMODE_640_480_60 }, /* catch-all, must be last */
206 * mac_vmode_to_var - converts vmode/cmode pair to var structure
207 * @vmode: MacOS video mode
208 * @cmode: MacOS color mode
209 * @var: frame buffer video mode structure
211 * Converts a MacOS vmode/cmode pair to a frame buffer video
214 * Returns negative errno on error, or zero for success.
218 int mac_vmode_to_var(int vmode, int cmode, struct fb_var_screeninfo *var)
220 const struct fb_videomode *mode = NULL;
221 const struct mode_map *map;
223 for (map = mac_modes; map->vmode != -1; map++)
224 if (map->vmode == vmode) {
231 memset(var, 0, sizeof(struct fb_var_screeninfo));
234 var->bits_per_pixel = 8;
237 var->green.offset = 0;
238 var->green.length = 8;
239 var->blue.offset = 0;
240 var->blue.length = 8;
244 var->bits_per_pixel = 16;
245 var->red.offset = 10;
247 var->green.offset = 5;
248 var->green.length = 5;
249 var->blue.offset = 0;
250 var->blue.length = 5;
254 var->bits_per_pixel = 32;
255 var->red.offset = 16;
257 var->green.offset = 8;
258 var->green.length = 8;
259 var->blue.offset = 0;
260 var->blue.length = 8;
261 var->transp.offset = 24;
262 var->transp.length = 8;
268 var->xres = mode->xres;
269 var->yres = mode->yres;
270 var->xres_virtual = mode->xres;
271 var->yres_virtual = mode->yres;
274 var->pixclock = mode->pixclock;
275 var->left_margin = mode->left_margin;
276 var->right_margin = mode->right_margin;
277 var->upper_margin = mode->upper_margin;
278 var->lower_margin = mode->lower_margin;
279 var->hsync_len = mode->hsync_len;
280 var->vsync_len = mode->vsync_len;
281 var->sync = mode->sync;
282 var->vmode = mode->vmode;
285 EXPORT_SYMBOL(mac_vmode_to_var);
288 * mac_var_to_vmode - convert var structure to MacOS vmode/cmode pair
289 * @var: frame buffer video mode structure
290 * @vmode: MacOS video mode
291 * @cmode: MacOS color mode
293 * Converts a frame buffer video mode structure to a MacOS
296 * Returns negative errno on error, or zero for success.
300 int mac_var_to_vmode(const struct fb_var_screeninfo *var, int *vmode,
303 const struct fb_videomode *mode = NULL;
304 const struct mode_map *map;
306 if (var->bits_per_pixel <= 8)
308 else if (var->bits_per_pixel <= 16)
310 else if (var->bits_per_pixel <= 32)
315 for (map = mac_modes; map->vmode != -1; map++) {
317 if (var->xres > mode->xres || var->yres > mode->yres)
319 if (var->xres_virtual > mode->xres || var->yres_virtual > mode->yres)
321 if (var->pixclock > mode->pixclock)
323 if ((var->vmode & FB_VMODE_MASK) != mode->vmode)
330 EXPORT_SYMBOL(mac_var_to_vmode);
333 * mac_map_monitor_sense - Convert monitor sense to vmode
334 * @sense: Macintosh monitor sense number
336 * Converts a Macintosh monitor sense number to a MacOS
339 * Returns MacOS vmode video mode number.
343 int mac_map_monitor_sense(int sense)
345 const struct monitor_map *map;
347 for (map = mac_monitors; map->sense != -1; map++)
348 if (map->sense == sense)
352 EXPORT_SYMBOL(mac_map_monitor_sense);
355 * mac_find_mode - find a video mode
356 * @var: frame buffer user defined part of display
357 * @info: frame buffer info structure
358 * @mode_option: video mode name (see mac_modedb[])
359 * @default_bpp: default color depth in bits per pixel
361 * Finds a suitable video mode. Tries to set mode specified
362 * by @mode_option. If the name of the wanted mode begins with
363 * 'mac', the Mac video mode database will be used, otherwise it
364 * will fall back to the standard video mode database.
366 * Note: Function marked as __init and can only be used during
369 * Returns error code from fb_find_mode (see fb_find_mode
374 int __init mac_find_mode(struct fb_var_screeninfo *var, struct fb_info *info,
375 const char *mode_option, unsigned int default_bpp)
377 const struct fb_videomode *db = NULL;
378 unsigned int dbsize = 0;
380 if (mode_option && !strncmp(mode_option, "mac", 3)) {
383 dbsize = sizeof(mac_modedb)/sizeof(*mac_modedb);
385 return fb_find_mode(var, info, mode_option, db, dbsize,
386 &mac_modedb[DEFAULT_MODEDB_INDEX], default_bpp);
388 EXPORT_SYMBOL(mac_find_mode);
390 MODULE_LICENSE("GPL");