/*
* linux/drivers/video/platinumfb-hw.c -- Frame buffer device for the
* Platinum on-board video in PowerMac 7200s (and some clones based
* on the same motherboard.)
*
* Created 09 Feb 1998 by Jon Howell <jonh@cs.dartmouth.edu>
*
* Copyright (C) 1998 Jon Howell
*
* based on drivers/macintosh/platinum.c: Console support
* for PowerMac "platinum" display adaptor.
* Copyright (C) 1996 Paul Mackerras and Mark Abene.
*
* based on skeletonfb.c:
* Created 28 Dec 1997 by 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.
*/
/*
* Structure of the registers for the DACula colormap device.
*/
struct cmap_regs {
unsigned char addr;
char pad1[15];
unsigned char d1;
char pad2[15];
unsigned char d2;
char pad3[15];
unsigned char lut;
char pad4[15];
};
/*
* Structure of the registers for the "platinum" display adaptor".
*/
struct preg { /* padded register */
unsigned r; /* notice this is 32 bits. */
char pad[12];
};
struct platinum_regs {
struct preg reg[128];
};
/*
* Register initialization tables for the platinum display.
*
* It seems that there are two different types of platinum display
* out there. Older ones use the values in clocksel[1], for which
* the formula for the clock frequency seems to be
* F = 14.3MHz * c0 / (c1 & 0x1f) / (1 << (c1 >> 5))
* Newer ones use the values in clocksel[0], for which the formula
* seems to be
* F = 15MHz * c0 / ((c1 & 0x1f) + 2) / (1 << (c1 >> 5))
*/
struct platinum_regvals {
int fb_offset;
int pitch[3];
unsigned regs[26];
unsigned char offset[3];
unsigned char mode[3];
unsigned char dacula_ctrl[3];
unsigned char clock_params[2][2];
};
#define DIV2 0x20
#define DIV4 0x40
#define DIV8 0x60
#define DIV16 0x80
/* 1280x1024, 75Hz (20) */
static struct platinum_regvals platinum_reg_init_20 = {
0x5c00,
{ 1312, 2592, 2592 },
{ 0xffc, 4, 0, 0, 0, 0, 0x428, 0,
0, 0xb3, 0xd3, 0x12, 0x1a5, 0x23, 0x28, 0x2d,
0x5e, 0x19e, 0x1a4, 0x854, 0x852, 4, 9, 0x50,
0x850, 0x851 }, { 0x58, 0x5d, 0x5d },
{ 0, 0xff, 0xff }, { 0x51, 0x55, 0x55 },
{{ 45, 3 }, { 66, 7 }}
};
/* 1280x960, 75Hz (19) */
static struct platinum_regvals platinum_reg_init_19 = {
0x5c00,
{ 1312, 2592, 2592 },
{ 0xffc, 4, 0, 0, 0, 0, 0x428, 0,
0, 0xb2, 0xd2, 0x12, 0x1a3, 0x23, 0x28, 0x2d,
0x5c, 0x19c, 0x1a2, 0x7d0, 0x7ce, 4, 9, 0x4c,
0x7cc, 0x7cd }, { 0x56, 0x5b, 0x5b },
{ 0, 0xff, 0xff }, { 0x51, 0x55, 0x55 },
{{ 42, 3 }, { 44, 5 }}
};
/* 1152x870, 75Hz (18) */
static struct platinum_regvals platinum_reg_init_18 = {
0x11b0,
{ 1184, 2336, 4640 },
{ 0xff0, 4, 0, 0, 0, 0, 0x38f, 0,
0, 0x294, 0x16c, 0x20, 0x2d7, 0x3f, 0x49, 0x53,
0x82, 0x2c2, 0x2d6, 0x726, 0x724, 4, 9, 0x52,
0x71e, 0x722 }, { 0x74, 0x7c, 0x81 },
{ 2, 0, 0xff }, { 0x11, 0x15, 0x19 },
{{ 26, 0 + DIV2 }, { 42, 6 }}
};
/* 1024x768, 75Hz (17) */
static struct platinum_regvals platinum_reg_init_17 = {
0x10b0,
{ 1056, 2080, 4128 },
{ 0xff0, 4, 0, 0, 0, 0, 0x320, 0,
0, 0x254, 0x14b, 0x18, 0x295, 0x2f, 0x32, 0x3b,
0x80, 0x280, 0x296, 0x648, 0x646, 4, 9, 0x40,
0x640, 0x644 }, { 0x72, 0x7a, 0x7f },
{ 2, 0, 0xff }, { 0x11, 0x15, 0x19 },
{{ 54, 3 + DIV2 }, { 67, 12 }}
};
/* 1024x768, 75Hz (16) */
static struct platinum_regvals platinum_reg_init_16 = {
0x10b0,
{ 1056, 2080, 4128 },
{ 0xff0, 4, 0, 0, 0, 0, 0x320, 0,
0, 0x250, 0x147, 0x17, 0x28f, 0x2f, 0x35, 0x47,
0x82, 0x282, 0x28e, 0x640, 0x63e, 4, 9, 0x3c,
0x63c, 0x63d }, { 0x74, 0x7c, 0x81 },
{ 2, 0, 0xff }, { 0x11, 0x15, 0x19 },
{{ 20, 0 + DIV2 }, { 11, 2 }}
};
/* 1024x768, 70Hz (15) */
static struct platinum_regvals platinum_reg_init_15 = {
0x10b0,
{ 1056, 2080, 4128 },
{ 0xff0, 4, 0, 0, 0, 0, 0x320, 0,
0, 0x254, 0x14b, 0x22, 0x297, 0x43, 0x49, 0x5b,
0x86, 0x286, 0x296, 0x64c, 0x64a, 0xa, 0xf, 0x44,
0x644, 0x646 }, { 0x78, 0x80, 0x85 },
{ 2, 0, 0xff }, { 0x11, 0x15, 0x19 },
{{ 19, 0 + DIV2 }, { 110, 21 }}
};
/* 1024x768, 60Hz (14) */
static struct platinum_regvals platinum_reg_init_14 = {
0x10b0,
{ 1056, 2080, 4128 },
{ 0xff0, 4, 0, 0, 0, 0, 0x320, 0,
0, 0x25a, 0x14f, 0x22, 0x29f, 0x43, 0x49, 0x5b,
0x8e, 0x28e, 0x29e, 0x64c, 0x64a, 0xa, 0xf, 0x44,
0x644, 0x646 }, { 0x80, 0x88, 0x8d },
{ 2, 0, 0xff }, { 0x11, 0x15, 0x19 },
{{ 71, 6 + DIV2 }, { 118, 13 + DIV2 }}
};
/* 832x624, 75Hz (13) */
static struct platinum_regvals platinum_reg_init_13 = {
0x70,
{ 864, 1680, 3344 }, /* MacOS does 1680 instead of 1696 to fit 16bpp in 1MB,
* and we use 3344 instead of 3360 to fit in 2Mb
*/
{ 0xff0, 4, 0, 0, 0, 0, 0x299, 0,
0, 0x21e, 0x120, 0x10, 0x23f, 0x1f, 0x25, 0x37,
0x8a, 0x22a, 0x23e, 0x536, 0x534, 4, 9, 0x52,
0x532, 0x533 }, { 0x7c, 0x84, 0x89 },
{ 2, 0, 0xff }, { 0x11, 0x15, 0x19 },
{{ 30, 0 + DIV4 }, { 56, 7 + DIV2 }}
};
/* 800x600, 75Hz (12) */
static struct platinum_regvals platinum_reg_init_12 = {
0x1010,
{ 832, 1632, 3232 },
{ 0xff0, 4, 0, 0, 0, 0, 0x320, 0,
0, 0x1ce, 0x108, 0x14, 0x20f, 0x27, 0x30, 0x39,
0x72, 0x202, 0x20e, 0x4e2, 0x4e0, 4, 9, 0x2e,
0x4de, 0x4df }, { 0x64, 0x6c, 0x71 },
{ 2, 0, 0xff }, { 0x11, 0x15, 0x19 },
{{ 122, 7 + DIV4 }, { 62, 9 + DIV2 }}
};
/* 800x600, 72Hz (11) */
static struct platinum_regvals platinum_reg_init_11 = {
0x1010,
{ 832, 1632, 3232 },
{ 0xff0, 4, 0, 0, 0, 0, 0x320, 0,
0, 0x1ca, 0x104, 0x1e, 0x207, 0x3b, 0x44, 0x4d,
0x56, 0x1e6, 0x206, 0x534, 0x532, 0xa, 0xe, 0x38,
0x4e8, 0x4ec }, { 0x48, 0x50, 0x55 },
{ 2, 0, 0xff }, { 0x11, 0x15, 0x19 },
{{ 26, 0 + DIV4 }, { 42, 6 + DIV2 }}
};
/* 800x600, 60Hz (10) */
static struct platinum_regvals platinum_reg_init_10 = {
0x1010,
{ 832, 1632, 3232 },
{ 0xff0, 4, 0, 0, 0, 0, 0x320, 0,
0, 0x1ce, 0x108, 0x20, 0x20f, 0x3f, 0x45, 0x5d,
0x66, 0x1f6, 0x20e, 0x4e8, 0x4e6, 6, 0xa, 0x34,
0x4e4, 0x4e5 }, { 0x58, 0x60, 0x65 },
{ 2, 0, 0xff }, { 0x11, 0x15, 0x19 },
{{ 54, 3 + DIV4 }, { 95, 1 + DIV8 }}
};
/* 800x600, 56Hz (9) --unsupported? copy of mode 10 for now... */
static struct platinum_regvals platinum_reg_init_9 = {
0x1010,
{ 832, 1632, 3232 },
{ 0xff0, 4, 0, 0, 0, 0, 0x320, 0,
0, 0x1ce, 0x108, 0x20, 0x20f, 0x3f, 0x45, 0x5d,
0x66, 0x1f6, 0x20e, 0x4e8, 0x4e6, 6, 0xa, 0x34,
0x4e4, 0x4e5 }, { 0x58, 0x60, 0x65 },
{ 2, 0, 0xff }, { 0x11, 0x15, 0x19 },
{{ 54, 3 + DIV4 }, { 88, 1 + DIV8 }}
};
/* 768x576, 50Hz Interlaced-PAL (8) */
static struct platinum_regvals platinum_reg_init_8 = {
0x1010,
{ 800, 1568, 3104 },
{ 0xff0, 4, 0, 0, 0, 0, 0x320, 0,
0, 0xc8, 0xec, 0x11, 0x1d7, 0x22, 0x25, 0x36,
0x47, 0x1c7, 0x1d6, 0x271, 0x270, 4, 9, 0x27,
0x267, 0x26b }, { 0x39, 0x41, 0x46 },
{ 2, 0, 0xff }, { 0x11, 0x15, 0x19 },
{{ 31, 0 + DIV16 }, { 74, 9 + DIV8 }}
};
/* 640x870, 75Hz Portrait (7) */
static struct platinum_regvals platinum_reg_init_7 = {
0xb10,
{ 672, 1312, 2592 },
{ 0xff0, 4, 0, 0, 0, 0, 0x320, 0,
0, 0x176, 0xd0, 0x14, 0x19f, 0x27, 0x2d, 0x3f,
0x4a, 0x18a, 0x19e, 0x72c, 0x72a, 4, 9, 0x58,
0x724, 0x72a }, { 0x3c, 0x44, 0x49 },
{ 2, 0, 0xff }, { 0x11, 0x15, 0x19 },
{{ 30, 0 + DIV4 }, { 56, 7 + DIV2 }}
};
/* 640x480, 67Hz (6) */
static struct platinum_regvals platinum_reg_init_6 = {
0x1010,
{ 672, 1312, 2592 },
{ 0xff0, 4, 0, 0, 0, 0, 0x209, 0,
0, 0x18e, 0xd8, 0x10, 0x1af, 0x1f, 0x25, 0x37,
0x4a, 0x18a, 0x1ae, 0x41a, 0x418, 4, 9, 0x52,
0x412, 0x416 }, { 0x3c, 0x44, 0x49 },
{ 2, 0, 0xff }, { 0x11, 0x15, 0x19 },
{{ 99, 4 + DIV8 }, { 42, 5 + DIV4 }}
};
/* 640x480, 60Hz (5) */
static struct platinum_regvals platinum_reg_init_5 = {
0x1010,
{ 672, 1312, 2592 },
{ 0xff0, 4, 0, 0, 0, 0, 0x320, 0,
0, 0x15e, 0xc8, 0x18, 0x18f, 0x2f, 0x35, 0x3e,
0x42, 0x182, 0x18e, 0x41a, 0x418, 2, 7, 0x44,
0x404, 0x408 }, { 0x34, 0x3c, 0x41 },
{ 2, 0, 0xff }, { 0x11, 0x15, 0x19 },
{{ 26, 0 + DIV8 }, { 14, 2 + DIV4 }}
};
/* 640x480, 60Hz Interlaced-NTSC (4) */
static struct platinum_regvals platinum_reg_init_4 = {
0x1010,
{ 672, 1312, 2592 },
{ 0xff0, 4, 0, 0, 0, 0, 0x320, 0,
0, 0xa5, 0xc3, 0xe, 0x185, 0x1c, 0x1f, 0x30,
0x37, 0x177, 0x184, 0x20d, 0x20c, 5, 0xb, 0x23,
0x203, 0x206 }, { 0x29, 0x31, 0x36 },
{ 2, 0, 0xff }, { 0x11, 0x15, 0x19 },
{{ 94, 5 + DIV16 }, { 48, 7 + DIV8 }}
};
/* 640x480, 50Hz Interlaced-PAL (3) */
static struct platinum_regvals platinum_reg_init_3 = {
0x1010,
{ 672, 1312, 2592 },
{ 0xff0, 4, 0, 0, 0, 0, 0x320, 0,
0, 0xc8, 0xec, 0x11, 0x1d7, 0x22, 0x25, 0x36,
0x67, 0x1a7, 0x1d6, 0x271, 0x270, 4, 9, 0x57,
0x237, 0x26b }, { 0x59, 0x61, 0x66 },
{ 2, 0, 0xff }, { 0x11, 0x15, 0x19 },
{{ 31, 0 + DIV16 }, { 74, 9 + DIV8 }}
};
/* 512x384, 60Hz (2) */
static struct platinum_regvals platinum_reg_init_2 = {
0x1010,
{ 544, 1056, 2080 },
{ 0xff0, 4, 0, 0, 0, 0, 0x320, 0,
0, 0x25c, 0x140, 0x10, 0x27f, 0x1f, 0x2b, 0x4f,
0x68, 0x268, 0x27e, 0x32e, 0x32c, 4, 9, 0x2a,
0x32a, 0x32b }, { 0x5a, 0x62, 0x67 },
{ 2, 0, 0xff }, { 0x11, 0x15, 0x19 },
{{ 33, 2 + DIV8 }, { 79, 9 + DIV8 }}
};
/* 512x384, 60Hz Interlaced-NTSC (1) */
static struct platinum_regvals platinum_reg_init_1 = {
0x1010,
{ 544, 1056, 2080 },
{ 0xff0, 4, 0, 0, 0, 0, 0x320, 0,
0, 0xa5, 0xc3, 0xe, 0x185, 0x1c, 0x1f, 0x30,
0x57, 0x157, 0x184, 0x20d, 0x20c, 5, 0xb, 0x53,
0x1d3, 0x206 }, { 0x49, 0x51, 0x56 },
{ 2, 0, 0xff }, { 0x11, 0x15, 0x19 },
{{ 94, 5 + DIV16 }, { 48, 7 + DIV8 }}
};
static struct platinum_regvals *platinum_reg_init[VMODE_MAX] = {
&platinum_reg_init_1,
&platinum_reg_init_2,
&platinum_reg_init_3,
&platinum_reg_init_4,
&platinum_reg_init_5,
&platinum_reg_init_6,
&platinum_reg_init_7,
&platinum_reg_init_8,
&platinum_reg_init_9,
&platinum_reg_init_10,
&platinum_reg_init_11,
&platinum_reg_init_12,
&platinum_reg_init_13,
&platinum_reg_init_14,
&platinum_reg_init_15,
&platinum_reg_init_16,
&platinum_reg_init_17,
&platinum_reg_init_18,
&platinum_reg_init_19,
&platinum_reg_init_20
};
struct vmode_attr {
int hres;
int vres;
int vfreq;
int interlaced;
};
struct vmode_attr vmode_attrs[VMODE_MAX] = {
{512, 384, 60, 1},
{512, 384, 60},
{640, 480, 50, 1},
{640, 480, 60, 1},
{640, 480, 60},
{640, 480, 67},
{640, 870, 75},
{768, 576, 50, 1},
{800, 600, 56},
{800, 600, 60},
{800, 600, 72},
{800, 600, 75},
{832, 624, 75},
{1024, 768, 60},
{1024, 768, 72},
{1024, 768, 75},
{1024, 768, 75},
{1152, 870, 75},
{1280, 960, 75},
{1280, 1024, 75}
};