macmodes.c
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- /*
- * 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/config.h>
- #include <linux/errno.h>
- #include <linux/fb.h>
- #include <linux/string.h>
- #ifdef CONFIG_FB_COMPAT_XPMAC
- #include <asm/vc_ioctl.h>
- #endif
- #include <video/fbcon.h>
- #include <video/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[] = {
- {
- /* 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
- }, {
- /* 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_512_384_60: 512x384, 60Hz, Non-Interlaced */
- "mac2", 60, 512, 384, pixclock, left, right, upper, lower, hslen, vslen,
- sync, FB_VMODE_NONINTERLACED
- }, {
- /* 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_640_870_75P: 640x870, 75Hz (portrait), Non-Interlaced */
- "mac7", 75, 640, 870, pixclock, left, right, upper, lower, hslen, vslen,
- sync, FB_VMODE_NONINTERLACED
- }, {
- /* 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 refresh rate
- */
- static const struct mode_map {
- int vmode;
- const struct fb_videomode *mode;
- } mac_modes[] = {
- /* 640x480 */
- { VMODE_640_480_67, &mac_modedb[1] },
- { VMODE_640_480_60, &mac_modedb[0] },
- /* 800x600 */
- { VMODE_800_600_75, &mac_modedb[5] },
- { VMODE_800_600_72, &mac_modedb[4] },
- { VMODE_800_600_60, &mac_modedb[3] },
- { VMODE_800_600_56, &mac_modedb[2] },
- /* 832x624 */
- { VMODE_832_624_75, &mac_modedb[6] },
- /* 1024x768 */
- { VMODE_1024_768_75, &mac_modedb[10] },
- { VMODE_1024_768_75V, &mac_modedb[9] },
- { VMODE_1024_768_70, &mac_modedb[8] },
- { VMODE_1024_768_60, &mac_modedb[7] },
- /* 1152x768 */
- { VMODE_1152_768_60, &mac_modedb[14] },
- /* 1152x870 */
- { VMODE_1152_870_75, &mac_modedb[11] },
- /* 1280x960 */
- { VMODE_1280_960_75, &mac_modedb[12] },
- /* 1280x1024 */
- { VMODE_1280_1024_75, &mac_modedb[13] },
- /* 1600x1024 */
- { VMODE_1600_1024_60, &mac_modedb[15] },
- { -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 */
- };
- #ifdef CONFIG_FB_COMPAT_XPMAC
- struct fb_info *console_fb_info = NULL;
- struct vc_mode display_info;
- static u16 palette_red[16];
- static u16 palette_green[16];
- static u16 palette_blue[16];
- static struct fb_cmap palette_cmap = {
- 0, 16, palette_red, palette_green, palette_blue, NULL
- };
- /**
- * console_getmode - get current mode
- * @mode: virtual console mode structure
- *
- * Populates @mode with the current mode held in the global
- * display_info structure.
- *
- * Note, this function is only for XPMAC compatibility.
- *
- * Returns zero.
- */
- int console_getmode(struct vc_mode *mode)
- {
- *mode = display_info;
- return 0;
- }
- /**
- * console_setmode - sets current console mode
- * @mode: virtual console mode structure
- * @doit: boolean, 0 test mode, 1 test and activate mode
- *
- * Sets @mode for all virtual consoles if @doit is non-zero,
- * otherwise, test a mode for validity.
- *
- * Note, this function is only for XPMAC compatibility.
- *
- * Returns negative errno on error, or zero for success.
- *
- */
- int console_setmode(struct vc_mode *mode, int doit)
- {
- struct fb_var_screeninfo var;
- int cmode, err;
- if (!console_fb_info)
- return -EOPNOTSUPP;
- switch(mode->depth) {
- case 0:
- case 8:
- cmode = CMODE_8;
- break;
- case 16:
- cmode = CMODE_16;
- break;
- case 24:
- case 32:
- cmode = CMODE_32;
- break;
- default:
- return -EINVAL;
- }
- if ((err = mac_vmode_to_var(mode->mode, cmode, &var)))
- return err;
- var.activate = FB_ACTIVATE_TEST;
- err = console_fb_info->fbops->fb_set_var(&var, fg_console,
- console_fb_info);
- if (err || !doit)
- return err;
- else {
- int unit;
- var.activate = FB_ACTIVATE_NOW;
- for (unit = 0; unit < MAX_NR_CONSOLES; unit++)
- if (fb_display[unit].conp &&
- (GET_FB_IDX(console_fb_info->node) == con2fb_map[unit]))
- console_fb_info->fbops->fb_set_var(&var, unit,
- console_fb_info);
- }
- return 0;
- }
- /**
- * console_setcmap - sets palette color map for console
- * @n_entries: number of entries in the palette (max 16)
- * @red: value for red component of palette
- * @green: value for green component of palette
- * @blue: value for blue component of palette
- *
- * Sets global palette_cmap structure and activates the palette
- * on the current console.
- *
- * Note, this function is only for XPMAC compatibility.
- *
- * Returns negative errno on error, or zero for success.
- *
- */
- int console_setcmap(int n_entries, unsigned char *red, unsigned char *green,
- unsigned char *blue)
- {
- int i, j, n = 0, err;
- if (!console_fb_info)
- return -EOPNOTSUPP;
- for (i = 0; i < n_entries; i += n) {
- n = n_entries - i;
- if (n > 16)
- n = 16;
- palette_cmap.start = i;
- palette_cmap.len = n;
- for (j = 0; j < n; j++) {
- palette_cmap.red[j] = (red[i+j] << 8) | red[i+j];
- palette_cmap.green[j] = (green[i+j] << 8) | green[i+j];
- palette_cmap.blue[j] = (blue[i+j] << 8) | blue[i+j];
- }
- err = console_fb_info->fbops->fb_set_cmap(&palette_cmap, 1,
- fg_console,
- console_fb_info);
- if (err)
- return err;
- }
- return 0;
- }
- /**
- * console_powermode - sets monitor power mode
- * @mode: power state to set
- *
- * Sets power state as dictated by @mode.
- *
- * Note that this function is only for XPMAC compatibility and
- * doesn't do much.
- *
- * Returns 0 for %VC_POWERMODE_INQUIRY, -EINVAL for VESA power
- * settings, or -ENIXIO on failure.
- *
- */
- int console_powermode(int mode)
- {
- if (mode == VC_POWERMODE_INQUIRY)
- return 0;
- if (mode < VESA_NO_BLANKING || mode > VESA_POWERDOWN)
- return -EINVAL;
- /* Not Supported */
- return -ENXIO;
- }
- #endif /* CONFIG_FB_COMPAT_XPMAC */
- /**
- * 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;
- }
- /**
- * 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 fb_videomode *mode = NULL;
- 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;
- for (map = mac_modes; map->vmode != -1; map++) {
- 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;
- 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;
- }
- /**
- * 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 __init 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)) {
- db = mac_modedb;
- dbsize = sizeof(mac_modedb)/sizeof(*mac_modedb);
- }
- return fb_find_mode(var, info, mode_option, db, dbsize,
- &mac_modedb[DEFAULT_MODEDB_INDEX], default_bpp);
- }