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git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blob - drivers/video/macmodes.c
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/errno.h>
20 #include <linux/string.h>
21 #include <linux/module.h>
26 * MacOS video mode definitions
28 * Order IS important! If you change these, don't forget to update
32 #define DEFAULT_MODEDB_INDEX 0
34 static const struct fb_videomode mac_modedb
[] = {
36 /* 512x384, 60Hz, Non-Interlaced (15.67 MHz dot clock) */
37 "mac2", 60, 512, 384, 63828, 80, 16, 19, 1, 32, 3,
38 0, FB_VMODE_NONINTERLACED
40 /* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */
41 "mac5", 60, 640, 480, 39722, 32, 32, 33, 10, 96, 2,
42 0, FB_VMODE_NONINTERLACED
44 /* 640x480, 67Hz, Non-Interlaced (30.0 MHz dotclock) */
45 "mac6", 67, 640, 480, 33334, 80, 80, 39, 3, 64, 3,
46 0, FB_VMODE_NONINTERLACED
48 /* 640x870, 75Hz (portrait), Non-Interlaced (57.28 MHz dot clock) */
49 "mac7", 75, 640, 870, 17457, 80, 32, 42, 3, 80, 3,
50 0, FB_VMODE_NONINTERLACED
52 /* 800x600, 56 Hz, Non-Interlaced (36.00 MHz dotclock) */
53 "mac9", 56, 800, 600, 27778, 112, 40, 22, 1, 72, 2,
54 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
56 /* 800x600, 60 Hz, Non-Interlaced (40.00 MHz dotclock) */
57 "mac10", 60, 800, 600, 25000, 72, 56, 23, 1, 128, 4,
58 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
60 /* 800x600, 72 Hz, Non-Interlaced (50.00 MHz dotclock) */
61 "mac11", 72, 800, 600, 20000, 48, 72, 23, 37, 120, 6,
62 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
64 /* 800x600, 75 Hz, Non-Interlaced (49.50 MHz dotclock) */
65 "mac12", 75, 800, 600, 20203, 144, 32, 21, 1, 80, 3,
66 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
68 /* 832x624, 75Hz, Non-Interlaced (57.6 MHz dotclock) */
69 "mac13", 75, 832, 624, 17362, 208, 48, 39, 1, 64, 3,
70 0, FB_VMODE_NONINTERLACED
72 /* 1024x768, 60 Hz, Non-Interlaced (65.00 MHz dotclock) */
73 "mac14", 60, 1024, 768, 15385, 144, 40, 29, 3, 136, 6,
74 0, FB_VMODE_NONINTERLACED
76 /* 1024x768, 72 Hz, Non-Interlaced (75.00 MHz dotclock) */
77 "mac15", 72, 1024, 768, 13334, 128, 40, 29, 3, 136, 6,
78 0, FB_VMODE_NONINTERLACED
80 /* 1024x768, 75 Hz, Non-Interlaced (78.75 MHz dotclock) */
81 "mac16", 75, 1024, 768, 12699, 176, 16, 28, 1, 96, 3,
82 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
84 /* 1024x768, 75 Hz, Non-Interlaced (78.75 MHz dotclock) */
85 "mac17", 75, 1024, 768, 12699, 160, 32, 28, 1, 96, 3,
86 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
88 /* 1152x870, 75 Hz, Non-Interlaced (100.0 MHz dotclock) */
89 "mac18", 75, 1152, 870, 10000, 128, 48, 39, 3, 128, 3,
90 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
92 /* 1280x960, 75 Hz, Non-Interlaced (126.00 MHz dotclock) */
93 "mac19", 75, 1280, 960, 7937, 224, 32, 36, 1, 144, 3,
94 0, FB_VMODE_NONINTERLACED
96 /* 1280x1024, 75 Hz, Non-Interlaced (135.00 MHz dotclock) */
97 "mac20", 75, 1280, 1024, 7408, 232, 64, 38, 1, 112, 3,
98 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
100 /* 1152x768, 60 Hz, Titanium PowerBook */
101 "mac21", 60, 1152, 768, 15386, 158, 26, 29, 3, 136, 6,
102 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
104 /* 1600x1024, 60 Hz, Non-Interlaced (112.27 MHz dotclock) */
105 "mac22", 60, 1600, 1024, 8908, 88, 104, 1, 10, 16, 1,
106 FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
, FB_VMODE_NONINTERLACED
110 /* Anyone who has timings for these? */
112 /* VMODE_512_384_60I: 512x384, 60Hz, Interlaced (NTSC) */
113 "mac1", 60, 512, 384, pixclock
, left
, right
, upper
, lower
, hslen
, vslen
,
114 sync
, FB_VMODE_INTERLACED
116 /* VMODE_640_480_50I: 640x480, 50Hz, Interlaced (PAL) */
117 "mac3", 50, 640, 480, pixclock
, left
, right
, upper
, lower
, hslen
, vslen
,
118 sync
, FB_VMODE_INTERLACED
120 /* VMODE_640_480_60I: 640x480, 60Hz, Interlaced (NTSC) */
121 "mac4", 60, 640, 480, pixclock
, left
, right
, upper
, lower
, hslen
, vslen
,
122 sync
, FB_VMODE_INTERLACED
124 /* VMODE_768_576_50I: 768x576, 50Hz (PAL full frame), Interlaced */
125 "mac8", 50, 768, 576, pixclock
, left
, right
, upper
, lower
, hslen
, vslen
,
126 sync
, FB_VMODE_INTERLACED
133 * Mapping between MacOS video mode numbers and video mode definitions
135 * These MUST be ordered in
136 * - increasing resolution
137 * - decreasing pixel clock period
140 static const struct mode_map
{
142 const struct fb_videomode
*mode
;
145 { VMODE_512_384_60
, &mac_modedb
[0] },
147 { VMODE_640_480_60
, &mac_modedb
[1] },
148 { VMODE_640_480_67
, &mac_modedb
[2] },
150 { VMODE_640_870_75P
, &mac_modedb
[3] },
152 { VMODE_800_600_56
, &mac_modedb
[4] },
153 { VMODE_800_600_60
, &mac_modedb
[5] },
154 { VMODE_800_600_75
, &mac_modedb
[7] },
155 { VMODE_800_600_72
, &mac_modedb
[6] },
157 { VMODE_832_624_75
, &mac_modedb
[8] },
159 { VMODE_1024_768_60
, &mac_modedb
[9] },
160 { VMODE_1024_768_70
, &mac_modedb
[10] },
161 { VMODE_1024_768_75V
, &mac_modedb
[11] },
162 { VMODE_1024_768_75
, &mac_modedb
[12] },
164 { VMODE_1152_768_60
, &mac_modedb
[16] },
166 { VMODE_1152_870_75
, &mac_modedb
[13] },
168 { VMODE_1280_960_75
, &mac_modedb
[14] },
170 { VMODE_1280_1024_75
, &mac_modedb
[15] },
172 { VMODE_1600_1024_60
, &mac_modedb
[17] },
178 * Mapping between monitor sense values and MacOS video mode numbers
181 static const struct monitor_map
{
185 { 0x000, VMODE_1280_1024_75
}, /* 21" RGB */
186 { 0x114, VMODE_640_870_75P
}, /* Portrait Monochrome */
187 { 0x221, VMODE_512_384_60
}, /* 12" RGB*/
188 { 0x331, VMODE_1280_1024_75
}, /* 21" RGB (Radius) */
189 { 0x334, VMODE_1280_1024_75
}, /* 21" mono (Radius) */
190 { 0x335, VMODE_1280_1024_75
}, /* 21" mono */
191 { 0x40A, VMODE_640_480_60I
}, /* NTSC */
192 { 0x51E, VMODE_640_870_75P
}, /* Portrait RGB */
193 { 0x603, VMODE_832_624_75
}, /* 12"-16" multiscan */
194 { 0x60b, VMODE_1024_768_70
}, /* 13"-19" multiscan */
195 { 0x623, VMODE_1152_870_75
}, /* 13"-21" multiscan */
196 { 0x62b, VMODE_640_480_67
}, /* 13"/14" RGB */
197 { 0x700, VMODE_640_480_50I
}, /* PAL */
198 { 0x714, VMODE_640_480_60I
}, /* NTSC */
199 { 0x717, VMODE_800_600_75
}, /* VGA */
200 { 0x72d, VMODE_832_624_75
}, /* 16" RGB (Goldfish) */
201 { 0x730, VMODE_768_576_50I
}, /* PAL (Alternate) */
202 { 0x73a, VMODE_1152_870_75
}, /* 3rd party 19" */
203 { 0x73f, VMODE_640_480_67
}, /* no sense lines connected at all */
204 { 0xBEEF, VMODE_1600_1024_60
}, /* 22" Apple Cinema Display */
205 { -1, VMODE_640_480_60
}, /* catch-all, must be last */
209 * mac_vmode_to_var - converts vmode/cmode pair to var structure
210 * @vmode: MacOS video mode
211 * @cmode: MacOS color mode
212 * @var: frame buffer video mode structure
214 * Converts a MacOS vmode/cmode pair to a frame buffer video
217 * Returns negative errno on error, or zero for success.
221 int mac_vmode_to_var(int vmode
, int cmode
, struct fb_var_screeninfo
*var
)
223 const struct fb_videomode
*mode
= NULL
;
224 const struct mode_map
*map
;
226 for (map
= mac_modes
; map
->vmode
!= -1; map
++)
227 if (map
->vmode
== vmode
) {
234 memset(var
, 0, sizeof(struct fb_var_screeninfo
));
237 var
->bits_per_pixel
= 8;
240 var
->green
.offset
= 0;
241 var
->green
.length
= 8;
242 var
->blue
.offset
= 0;
243 var
->blue
.length
= 8;
247 var
->bits_per_pixel
= 16;
248 var
->red
.offset
= 10;
250 var
->green
.offset
= 5;
251 var
->green
.length
= 5;
252 var
->blue
.offset
= 0;
253 var
->blue
.length
= 5;
257 var
->bits_per_pixel
= 32;
258 var
->red
.offset
= 16;
260 var
->green
.offset
= 8;
261 var
->green
.length
= 8;
262 var
->blue
.offset
= 0;
263 var
->blue
.length
= 8;
264 var
->transp
.offset
= 24;
265 var
->transp
.length
= 8;
271 var
->xres
= mode
->xres
;
272 var
->yres
= mode
->yres
;
273 var
->xres_virtual
= mode
->xres
;
274 var
->yres_virtual
= mode
->yres
;
277 var
->pixclock
= mode
->pixclock
;
278 var
->left_margin
= mode
->left_margin
;
279 var
->right_margin
= mode
->right_margin
;
280 var
->upper_margin
= mode
->upper_margin
;
281 var
->lower_margin
= mode
->lower_margin
;
282 var
->hsync_len
= mode
->hsync_len
;
283 var
->vsync_len
= mode
->vsync_len
;
284 var
->sync
= mode
->sync
;
285 var
->vmode
= mode
->vmode
;
288 EXPORT_SYMBOL(mac_vmode_to_var
);
291 * mac_var_to_vmode - convert var structure to MacOS vmode/cmode pair
292 * @var: frame buffer video mode structure
293 * @vmode: MacOS video mode
294 * @cmode: MacOS color mode
296 * Converts a frame buffer video mode structure to a MacOS
299 * Returns negative errno on error, or zero for success.
303 int mac_var_to_vmode(const struct fb_var_screeninfo
*var
, int *vmode
,
306 const struct mode_map
*map
;
308 if (var
->bits_per_pixel
<= 8)
310 else if (var
->bits_per_pixel
<= 16)
312 else if (var
->bits_per_pixel
<= 32)
318 * Find the mac_mode with a matching resolution or failing that, the
319 * closest larger resolution. Skip modes with a shorter pixel clock period.
321 for (map
= mac_modes
; map
->vmode
!= -1; map
++) {
322 const struct fb_videomode
*mode
= map
->mode
;
324 if (var
->xres
> mode
->xres
|| var
->yres
> mode
->yres
)
326 if (var
->xres_virtual
> mode
->xres
|| var
->yres_virtual
> mode
->yres
)
328 if (var
->pixclock
> mode
->pixclock
)
330 if ((var
->vmode
& FB_VMODE_MASK
) != mode
->vmode
)
335 * Having found a good resolution, find the matching pixel clock
336 * or failing that, the closest longer pixel clock period.
339 while (map
->vmode
!= -1) {
340 const struct fb_videomode
*clk_mode
= map
->mode
;
342 if (mode
->xres
!= clk_mode
->xres
|| mode
->yres
!= clk_mode
->yres
)
344 if (var
->pixclock
> mode
->pixclock
)
346 if (mode
->vmode
!= clk_mode
->vmode
)
357 * mac_map_monitor_sense - Convert monitor sense to vmode
358 * @sense: Macintosh monitor sense number
360 * Converts a Macintosh monitor sense number to a MacOS
363 * Returns MacOS vmode video mode number.
367 int mac_map_monitor_sense(int sense
)
369 const struct monitor_map
*map
;
371 for (map
= mac_monitors
; map
->sense
!= -1; map
++)
372 if (map
->sense
== sense
)
376 EXPORT_SYMBOL(mac_map_monitor_sense
);
379 * mac_find_mode - find a video mode
380 * @var: frame buffer user defined part of display
381 * @info: frame buffer info structure
382 * @mode_option: video mode name (see mac_modedb[])
383 * @default_bpp: default color depth in bits per pixel
385 * Finds a suitable video mode. Tries to set mode specified
386 * by @mode_option. If the name of the wanted mode begins with
387 * 'mac', the Mac video mode database will be used, otherwise it
388 * will fall back to the standard video mode database.
390 * Note: Function marked as __init and can only be used during
393 * Returns error code from fb_find_mode (see fb_find_mode
398 int mac_find_mode(struct fb_var_screeninfo
*var
, struct fb_info
*info
,
399 const char *mode_option
, unsigned int default_bpp
)
401 const struct fb_videomode
*db
= NULL
;
402 unsigned int dbsize
= 0;
404 if (mode_option
&& !strncmp(mode_option
, "mac", 3)) {
407 dbsize
= ARRAY_SIZE(mac_modedb
);
409 return fb_find_mode(var
, info
, mode_option
, db
, dbsize
,
410 &mac_modedb
[DEFAULT_MODEDB_INDEX
], default_bpp
);
412 EXPORT_SYMBOL(mac_find_mode
);
414 MODULE_LICENSE("GPL");