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/*
* linux/drivers/video/macmodes.c -- Standard MacOS video modes
*
* Copyright (C) 1998 Geert Uytterhoeven
*
* 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/tty.h>
#include <linux/fb.h>
#include <linux/string.h>
#include <video/macmodes.h>
struct mac_mode {
int number;
u32 xres;
u32 yres;
u32 pixclock;
u32 left_margin;
u32 right_margin;
u32 upper_margin;
u32 lower_margin;
u32 hsync_len;
u32 vsync_len;
u32 sync;
u32 vmode;
};
/* 512x384, 60Hz, Interlaced (NTSC) */
#if 0
static const struct mac_mode mac_mode_1 = {
VMODE_512_384_60I, 512, 384,
pixclock, left, right, upper, lower, hslen, vslen,
sync, FB_VMODE_INTERLACED
};
#endif
/* 512x384, 60Hz, Non-Interlaced */
#if 0
static const struct mac_mode mac_mode_2 = {
VMODE_512_384_60, 512, 384,
pixclock, left, right, upper, lower, hslen, vslen,
sync, FB_VMODE_NONINTERLACED
};
#endif
/* 640x480, 50Hz, Interlaced (PAL) */
#if 0
static const struct mac_mode mac_mode_3 = {
VMODE_640_480_50I, 640, 480,
pixclock, left, right, upper, lower, hslen, vslen,
sync, FB_VMODE_INTERLACED
};
#endif
/* 640x480, 60Hz, Interlaced (NTSC) */
#if 0
static const struct mac_mode mac_mode_4 = {
VMODE_640_480_60I, 640, 480,
pixclock, left, right, upper, lower, hslen, vslen,
sync, FB_VMODE_INTERLACED
};
#endif
/* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */
static const struct mac_mode mac_mode_5 = {
VMODE_640_480_60, 640, 480,
39722, 32, 32, 33, 10, 96, 2,
0, FB_VMODE_NONINTERLACED
};
/* 640x480, 67Hz, Non-Interlaced (30.0 MHz dotclock) */
static const struct mac_mode mac_mode_6 = {
VMODE_640_480_67, 640, 480,
33334, 80, 80, 39, 3, 64, 3,
0, FB_VMODE_NONINTERLACED
};
/* 640x870, 75Hz (portrait), Non-Interlaced */
#if 0
static const struct mac_mode mac_mode_7 = {
VMODE_640_870_75P, 640, 870,
pixclock, left, right, upper, lower, hslen, vslen,
sync, FB_VMODE_NONINTERLACED
};
#endif
/* 768x576, 50Hz (PAL full frame), Interlaced */
#if 0
static const struct mac_mode mac_mode_8 = {
VMODE_768_576_50I, 768, 576,
pixclock, left, right, upper, lower, hslen, vslen,
sync, FB_VMODE_INTERLACED
};
#endif
/* 800x600, 56 Hz, Non-Interlaced (36.00 MHz dotclock) */
static const struct mac_mode mac_mode_9 = {
VMODE_800_600_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) */
static const struct mac_mode mac_mode_10 = {
VMODE_800_600_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) */
static const struct mac_mode mac_mode_11 = {
VMODE_800_600_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) */
static const struct mac_mode mac_mode_12 = {
VMODE_800_600_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 */
static const struct mac_mode mac_mode_13 = {
VMODE_832_624_75, 832, 624,
17362, 208, 48, 39, 1, 64, 3,
0, FB_VMODE_NONINTERLACED
};
/* 1024x768, 60 Hz, Non-Interlaced (65.00 MHz dotclock) */
static const struct mac_mode mac_mode_14 = {
VMODE_1024_768_60, 1024, 768,
15385, 144, 40, 29, 3, 136, 6,
0, FB_VMODE_NONINTERLACED
};
/* 1024x768, 72 Hz, Non-Interlaced (75.00 MHz dotclock) */
static const struct mac_mode mac_mode_15 = {
VMODE_1024_768_70, 1024, 768,
13334, 128, 40, 29, 3, 136, 6,
0, FB_VMODE_NONINTERLACED
};
/* 1024x768, 75 Hz, Non-Interlaced (78.75 MHz dotclock) */
static const struct mac_mode mac_mode_16 = {
VMODE_1024_768_75V, 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) */
static const struct mac_mode mac_mode_17 = {
VMODE_1024_768_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) */
static const struct mac_mode mac_mode_18 = {
VMODE_1152_870_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) */
static const struct mac_mode mac_mode_19 = {
VMODE_1280_960_75, 1280, 960,
7937, 224, 32, 36, 1, 144, 3,
0, FB_VMODE_NONINTERLACED
};
/* 1280x1024, 75 Hz, Non-Interlaced (135.00 MHz dotclock) */
static const struct mac_mode mac_mode_20 = {
VMODE_1280_1024_75, 1280, 1024,
7408, 232, 64, 38, 1, 112, 3,
FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
};
static const struct mac_mode *mac_modes[20] = {
NULL, /* 512x384, 60Hz interlaced (NTSC) */
NULL, /* 512x384, 60Hz */
NULL, /* 640x480, 50Hz interlaced (PAL) */
NULL, /* 640x480, 60Hz interlaced (NTSC) */
&mac_mode_5, /* 640x480, 60Hz (VGA) */
&mac_mode_6, /* 640x480, 67Hz */
NULL, /* 640x870, 75Hz (portrait) */
NULL, /* 768x576, 50Hz (PAL full frame) */
&mac_mode_9, /* 800x600, 56Hz */
&mac_mode_10, /* 800x600, 60Hz */
&mac_mode_11, /* 800x600, 72Hz */
&mac_mode_12, /* 800x600, 75Hz */
&mac_mode_13, /* 832x624, 75Hz */
&mac_mode_14, /* 1024x768, 60Hz */
&mac_mode_15, /* 1024x768, 70Hz (or 72Hz?) */
&mac_mode_16, /* 1024x768, 75Hz (VESA) */
&mac_mode_17, /* 1024x768, 75Hz */
&mac_mode_18, /* 1152x870, 75Hz */
&mac_mode_19, /* 1280x960, 75Hz */
&mac_mode_20, /* 1280x1024, 75Hz */
};
static const struct mac_mode *mac_modes_inv[] = {
&mac_mode_6, /* 640x480, 67Hz */
&mac_mode_5, /* 640x480, 60Hz (VGA) */
&mac_mode_12, /* 800x600, 75Hz */
&mac_mode_11, /* 800x600, 72Hz */
&mac_mode_10, /* 800x600, 60Hz */
&mac_mode_9, /* 800x600, 56Hz */
&mac_mode_13, /* 832x624, 75Hz */
&mac_mode_17, /* 1024x768, 75Hz */
&mac_mode_16, /* 1024x768, 75Hz (VESA) */
&mac_mode_15, /* 1024x768, 70Hz (or 72Hz?) */
&mac_mode_14, /* 1024x768, 60Hz */
&mac_mode_18, /* 1152x870, 75Hz */
&mac_mode_19, /* 1280x960, 75Hz */
&mac_mode_20, /* 1280x1024, 75Hz */
};
static struct mon_map {
int sense;
int vmode;
} monitor_map[] = {
{ 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 */
{ -1, VMODE_640_480_60 }, /* catch-all, must be last */
};
/*
* Convert a MacOS vmode/cmode pair to a frame buffer video mode structure
*/
int mac_vmode_to_var(int vmode, int cmode, struct fb_var_screeninfo *var)
{
const struct mac_mode *mode = NULL;
if (vmode > 0 && vmode <= VMODE_MAX)
mode = mac_modes[vmode-1];
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;
}
/*
* Convert a frame buffer video mode structure to a MacOS vmode/cmode pair
*/
int mac_var_to_vmode(const struct fb_var_screeninfo *var, int *vmode,
int *cmode)
{
unsigned int i;
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 (i = 0; i < sizeof(mac_modes_inv)/sizeof(*mac_modes_inv); i++) {
const struct mac_mode *mode = mac_modes_inv[i];
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 = mode->number;
return 0;
}
return -EINVAL;
}
/*
* Convert a Mac monitor sense number to a MacOS vmode number
*/
int mac_map_monitor_sense(int sense)
{
struct mon_map *map;
for (map = monitor_map; map->sense >= 0; ++map)
if (map->sense == sense)
break;
return map->vmode;
}
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