369 lines · c
1/*2 * linux/drivers/video/platinumfb-hw.c -- Frame buffer device for the3 * Platinum on-board video in PowerMac 7200s (and some clones based4 * on the same motherboard.)5 *6 * Created 09 Feb 1998 by Jon Howell <jonh@cs.dartmouth.edu>7 *8 * Copyright (C) 1998 Jon Howell9 *10 * based on drivers/macintosh/platinum.c: Console support11 * for PowerMac "platinum" display adaptor.12 * Copyright (C) 1996 Paul Mackerras and Mark Abene.13 *14 * based on skeletonfb.c:15 * Created 28 Dec 1997 by Geert Uytterhoeven16 *17 * This file is subject to the terms and conditions of the GNU General Public18 * License. See the file COPYING in the main directory of this archive19 * for more details.20 */21 22/*23 * Structure of the registers for the DACula colormap device.24 */25struct cmap_regs {26 unsigned char addr;27 char pad1[15];28 unsigned char d1;29 char pad2[15];30 unsigned char d2;31 char pad3[15];32 unsigned char lut;33 char pad4[15];34};35 36/*37 * Structure of the registers for the "platinum" display adaptor".38 */39struct preg { /* padded register */40 unsigned r; /* notice this is 32 bits. */41 char pad[12];42};43 44struct platinum_regs {45 struct preg reg[128];46};47 48/*49 * Register initialization tables for the platinum display.50 *51 * It seems that there are two different types of platinum display52 * out there. Older ones use the values in clocksel[1], for which53 * the formula for the clock frequency seems to be54 * F = 14.3MHz * c0 / (c1 & 0x1f) / (1 << (c1 >> 5))55 * Newer ones use the values in clocksel[0], for which the formula56 * seems to be57 * F = 15MHz * c0 / ((c1 & 0x1f) + 2) / (1 << (c1 >> 5))58 */59struct platinum_regvals {60 int fb_offset;61 int pitch[3];62 unsigned regs[26];63 unsigned char offset[3];64 unsigned char mode[3];65 unsigned char dacula_ctrl[3];66 unsigned char clock_params[2][2];67};68 69#define DIV2 0x2070#define DIV4 0x4071#define DIV8 0x6072#define DIV16 0x8073 74/* 1280x1024, 75Hz (20) */75static struct platinum_regvals platinum_reg_init_20 = {76 0x5c00,77 { 1312, 2592, 2592 },78 { 0xffc, 4, 0, 0, 0, 0, 0x428, 0,79 0, 0xb3, 0xd3, 0x12, 0x1a5, 0x23, 0x28, 0x2d,80 0x5e, 0x19e, 0x1a4, 0x854, 0x852, 4, 9, 0x50,81 0x850, 0x851 }, { 0x58, 0x5d, 0x5d },82 { 0, 0xff, 0xff }, { 0x51, 0x55, 0x55 },83 {{ 45, 3 }, { 66, 7 }}84};85 86/* 1280x960, 75Hz (19) */87static struct platinum_regvals platinum_reg_init_19 = {88 0x5c00,89 { 1312, 2592, 2592 },90 { 0xffc, 4, 0, 0, 0, 0, 0x428, 0,91 0, 0xb2, 0xd2, 0x12, 0x1a3, 0x23, 0x28, 0x2d,92 0x5c, 0x19c, 0x1a2, 0x7d0, 0x7ce, 4, 9, 0x4c,93 0x7cc, 0x7cd }, { 0x56, 0x5b, 0x5b },94 { 0, 0xff, 0xff }, { 0x51, 0x55, 0x55 },95 {{ 42, 3 }, { 44, 5 }}96};97 98/* 1152x870, 75Hz (18) */99static struct platinum_regvals platinum_reg_init_18 = {100 0x11b0,101 { 1184, 2336, 4640 },102 { 0xff0, 4, 0, 0, 0, 0, 0x38f, 0,103 0, 0x294, 0x16c, 0x20, 0x2d7, 0x3f, 0x49, 0x53,104 0x82, 0x2c2, 0x2d6, 0x726, 0x724, 4, 9, 0x52,105 0x71e, 0x722 }, { 0x74, 0x7c, 0x81 },106 { 2, 0, 0xff }, { 0x11, 0x15, 0x19 },107 {{ 26, 0 + DIV2 }, { 42, 6 }}108};109 110/* 1024x768, 75Hz (17) */111static struct platinum_regvals platinum_reg_init_17 = {112 0x10b0,113 { 1056, 2080, 4128 },114 { 0xff0, 4, 0, 0, 0, 0, 0x320, 0,115 0, 0x254, 0x14b, 0x18, 0x295, 0x2f, 0x32, 0x3b,116 0x80, 0x280, 0x296, 0x648, 0x646, 4, 9, 0x40,117 0x640, 0x644 }, { 0x72, 0x7a, 0x7f },118 { 2, 0, 0xff }, { 0x11, 0x15, 0x19 },119 {{ 54, 3 + DIV2 }, { 67, 12 }}120};121 122/* 1024x768, 75Hz (16) */123static struct platinum_regvals platinum_reg_init_16 = {124 0x10b0,125 { 1056, 2080, 4128 },126 { 0xff0, 4, 0, 0, 0, 0, 0x320, 0,127 0, 0x250, 0x147, 0x17, 0x28f, 0x2f, 0x35, 0x47,128 0x82, 0x282, 0x28e, 0x640, 0x63e, 4, 9, 0x3c,129 0x63c, 0x63d }, { 0x74, 0x7c, 0x81 },130 { 2, 0, 0xff }, { 0x11, 0x15, 0x19 },131 {{ 20, 0 + DIV2 }, { 11, 2 }}132};133 134/* 1024x768, 70Hz (15) */135static struct platinum_regvals platinum_reg_init_15 = {136 0x10b0,137 { 1056, 2080, 4128 },138 { 0xff0, 4, 0, 0, 0, 0, 0x320, 0,139 0, 0x254, 0x14b, 0x22, 0x297, 0x43, 0x49, 0x5b,140 0x86, 0x286, 0x296, 0x64c, 0x64a, 0xa, 0xf, 0x44,141 0x644, 0x646 }, { 0x78, 0x80, 0x85 },142 { 2, 0, 0xff }, { 0x11, 0x15, 0x19 },143 {{ 19, 0 + DIV2 }, { 110, 21 }}144};145 146/* 1024x768, 60Hz (14) */147static struct platinum_regvals platinum_reg_init_14 = {148 0x10b0,149 { 1056, 2080, 4128 },150 { 0xff0, 4, 0, 0, 0, 0, 0x320, 0,151 0, 0x25a, 0x14f, 0x22, 0x29f, 0x43, 0x49, 0x5b,152 0x8e, 0x28e, 0x29e, 0x64c, 0x64a, 0xa, 0xf, 0x44,153 0x644, 0x646 }, { 0x80, 0x88, 0x8d },154 { 2, 0, 0xff }, { 0x11, 0x15, 0x19 },155 {{ 71, 6 + DIV2 }, { 118, 13 + DIV2 }}156};157 158/* 832x624, 75Hz (13) */159static struct platinum_regvals platinum_reg_init_13 = {160 0x70,161 { 864, 1680, 3344 }, /* MacOS does 1680 instead of 1696 to fit 16bpp in 1MB,162 * and we use 3344 instead of 3360 to fit in 2Mb163 */164 { 0xff0, 4, 0, 0, 0, 0, 0x299, 0,165 0, 0x21e, 0x120, 0x10, 0x23f, 0x1f, 0x25, 0x37,166 0x8a, 0x22a, 0x23e, 0x536, 0x534, 4, 9, 0x52,167 0x532, 0x533 }, { 0x7c, 0x84, 0x89 },168 { 2, 0, 0xff }, { 0x11, 0x15, 0x19 },169 {{ 30, 0 + DIV4 }, { 56, 7 + DIV2 }}170};171 172/* 800x600, 75Hz (12) */173static struct platinum_regvals platinum_reg_init_12 = {174 0x1010,175 { 832, 1632, 3232 },176 { 0xff0, 4, 0, 0, 0, 0, 0x320, 0,177 0, 0x1ce, 0x108, 0x14, 0x20f, 0x27, 0x30, 0x39,178 0x72, 0x202, 0x20e, 0x4e2, 0x4e0, 4, 9, 0x2e,179 0x4de, 0x4df }, { 0x64, 0x6c, 0x71 },180 { 2, 0, 0xff }, { 0x11, 0x15, 0x19 },181 {{ 122, 7 + DIV4 }, { 62, 9 + DIV2 }}182};183 184/* 800x600, 72Hz (11) */185static struct platinum_regvals platinum_reg_init_11 = {186 0x1010,187 { 832, 1632, 3232 },188 { 0xff0, 4, 0, 0, 0, 0, 0x320, 0,189 0, 0x1ca, 0x104, 0x1e, 0x207, 0x3b, 0x44, 0x4d,190 0x56, 0x1e6, 0x206, 0x534, 0x532, 0xa, 0xe, 0x38,191 0x4e8, 0x4ec }, { 0x48, 0x50, 0x55 },192 { 2, 0, 0xff }, { 0x11, 0x15, 0x19 },193 {{ 26, 0 + DIV4 }, { 42, 6 + DIV2 }}194};195 196/* 800x600, 60Hz (10) */197static struct platinum_regvals platinum_reg_init_10 = {198 0x1010,199 { 832, 1632, 3232 },200 { 0xff0, 4, 0, 0, 0, 0, 0x320, 0,201 0, 0x1ce, 0x108, 0x20, 0x20f, 0x3f, 0x45, 0x5d,202 0x66, 0x1f6, 0x20e, 0x4e8, 0x4e6, 6, 0xa, 0x34,203 0x4e4, 0x4e5 }, { 0x58, 0x60, 0x65 },204 { 2, 0, 0xff }, { 0x11, 0x15, 0x19 },205 {{ 54, 3 + DIV4 }, { 95, 1 + DIV8 }}206};207 208/* 800x600, 56Hz (9) --unsupported? copy of mode 10 for now... */209static struct platinum_regvals platinum_reg_init_9 = {210 0x1010,211 { 832, 1632, 3232 },212 { 0xff0, 4, 0, 0, 0, 0, 0x320, 0,213 0, 0x1ce, 0x108, 0x20, 0x20f, 0x3f, 0x45, 0x5d,214 0x66, 0x1f6, 0x20e, 0x4e8, 0x4e6, 6, 0xa, 0x34,215 0x4e4, 0x4e5 }, { 0x58, 0x60, 0x65 },216 { 2, 0, 0xff }, { 0x11, 0x15, 0x19 },217 {{ 54, 3 + DIV4 }, { 88, 1 + DIV8 }}218};219 220/* 768x576, 50Hz Interlaced-PAL (8) */221static struct platinum_regvals platinum_reg_init_8 = {222 0x1010,223 { 800, 1568, 3104 },224 { 0xff0, 4, 0, 0, 0, 0, 0x320, 0,225 0, 0xc8, 0xec, 0x11, 0x1d7, 0x22, 0x25, 0x36,226 0x47, 0x1c7, 0x1d6, 0x271, 0x270, 4, 9, 0x27,227 0x267, 0x26b }, { 0x39, 0x41, 0x46 },228 { 2, 0, 0xff }, { 0x11, 0x15, 0x19 },229 {{ 31, 0 + DIV16 }, { 74, 9 + DIV8 }}230};231 232/* 640x870, 75Hz Portrait (7) */233static struct platinum_regvals platinum_reg_init_7 = {234 0xb10,235 { 672, 1312, 2592 },236 { 0xff0, 4, 0, 0, 0, 0, 0x320, 0,237 0, 0x176, 0xd0, 0x14, 0x19f, 0x27, 0x2d, 0x3f,238 0x4a, 0x18a, 0x19e, 0x72c, 0x72a, 4, 9, 0x58,239 0x724, 0x72a }, { 0x3c, 0x44, 0x49 },240 { 2, 0, 0xff }, { 0x11, 0x15, 0x19 },241 {{ 30, 0 + DIV4 }, { 56, 7 + DIV2 }}242};243 244/* 640x480, 67Hz (6) */245static struct platinum_regvals platinum_reg_init_6 = {246 0x1010,247 { 672, 1312, 2592 },248 { 0xff0, 4, 0, 0, 0, 0, 0x209, 0,249 0, 0x18e, 0xd8, 0x10, 0x1af, 0x1f, 0x25, 0x37,250 0x4a, 0x18a, 0x1ae, 0x41a, 0x418, 4, 9, 0x52,251 0x412, 0x416 }, { 0x3c, 0x44, 0x49 },252 { 2, 0, 0xff }, { 0x11, 0x15, 0x19 },253 {{ 99, 4 + DIV8 }, { 42, 5 + DIV4 }}254};255 256/* 640x480, 60Hz (5) */257static struct platinum_regvals platinum_reg_init_5 = {258 0x1010,259 { 672, 1312, 2592 },260 { 0xff0, 4, 0, 0, 0, 0, 0x320, 0,261 0, 0x15e, 0xc8, 0x18, 0x18f, 0x2f, 0x35, 0x3e,262 0x42, 0x182, 0x18e, 0x41a, 0x418, 2, 7, 0x44,263 0x404, 0x408 }, { 0x34, 0x3c, 0x41 },264 { 2, 0, 0xff }, { 0x11, 0x15, 0x19 },265 {{ 26, 0 + DIV8 }, { 14, 2 + DIV4 }}266};267 268/* 640x480, 60Hz Interlaced-NTSC (4) */269static struct platinum_regvals platinum_reg_init_4 = {270 0x1010,271 { 672, 1312, 2592 },272 { 0xff0, 4, 0, 0, 0, 0, 0x320, 0,273 0, 0xa5, 0xc3, 0xe, 0x185, 0x1c, 0x1f, 0x30,274 0x37, 0x177, 0x184, 0x20d, 0x20c, 5, 0xb, 0x23,275 0x203, 0x206 }, { 0x29, 0x31, 0x36 },276 { 2, 0, 0xff }, { 0x11, 0x15, 0x19 },277 {{ 94, 5 + DIV16 }, { 48, 7 + DIV8 }}278};279 280/* 640x480, 50Hz Interlaced-PAL (3) */281static struct platinum_regvals platinum_reg_init_3 = {282 0x1010,283 { 672, 1312, 2592 },284 { 0xff0, 4, 0, 0, 0, 0, 0x320, 0,285 0, 0xc8, 0xec, 0x11, 0x1d7, 0x22, 0x25, 0x36,286 0x67, 0x1a7, 0x1d6, 0x271, 0x270, 4, 9, 0x57,287 0x237, 0x26b }, { 0x59, 0x61, 0x66 },288 { 2, 0, 0xff }, { 0x11, 0x15, 0x19 },289 {{ 31, 0 + DIV16 }, { 74, 9 + DIV8 }}290};291 292/* 512x384, 60Hz (2) */293static struct platinum_regvals platinum_reg_init_2 = {294 0x1010,295 { 544, 1056, 2080 },296 { 0xff0, 4, 0, 0, 0, 0, 0x320, 0,297 0, 0x25c, 0x140, 0x10, 0x27f, 0x1f, 0x2b, 0x4f,298 0x68, 0x268, 0x27e, 0x32e, 0x32c, 4, 9, 0x2a,299 0x32a, 0x32b }, { 0x5a, 0x62, 0x67 },300 { 2, 0, 0xff }, { 0x11, 0x15, 0x19 },301 {{ 33, 2 + DIV8 }, { 79, 9 + DIV8 }}302};303 304/* 512x384, 60Hz Interlaced-NTSC (1) */305static struct platinum_regvals platinum_reg_init_1 = {306 0x1010,307 { 544, 1056, 2080 },308 { 0xff0, 4, 0, 0, 0, 0, 0x320, 0,309 0, 0xa5, 0xc3, 0xe, 0x185, 0x1c, 0x1f, 0x30,310 0x57, 0x157, 0x184, 0x20d, 0x20c, 5, 0xb, 0x53,311 0x1d3, 0x206 }, { 0x49, 0x51, 0x56 },312 { 2, 0, 0xff }, { 0x11, 0x15, 0x19 },313 {{ 94, 5 + DIV16 }, { 48, 7 + DIV8 }}314};315 316static struct platinum_regvals *platinum_reg_init[VMODE_MAX] = {317 &platinum_reg_init_1,318 &platinum_reg_init_2,319 &platinum_reg_init_3,320 &platinum_reg_init_4,321 &platinum_reg_init_5,322 &platinum_reg_init_6,323 &platinum_reg_init_7,324 &platinum_reg_init_8,325 &platinum_reg_init_9,326 &platinum_reg_init_10,327 &platinum_reg_init_11,328 &platinum_reg_init_12,329 &platinum_reg_init_13,330 &platinum_reg_init_14,331 &platinum_reg_init_15,332 &platinum_reg_init_16,333 &platinum_reg_init_17,334 &platinum_reg_init_18,335 &platinum_reg_init_19,336 &platinum_reg_init_20337};338 339struct vmode_attr {340 int hres;341 int vres;342 int vfreq;343 int interlaced;344};345 346struct vmode_attr vmode_attrs[VMODE_MAX] = {347 {512, 384, 60, 1},348 {512, 384, 60},349 {640, 480, 50, 1},350 {640, 480, 60, 1},351 {640, 480, 60},352 {640, 480, 67},353 {640, 870, 75},354 {768, 576, 50, 1},355 {800, 600, 56},356 {800, 600, 60},357 {800, 600, 72},358 {800, 600, 75},359 {832, 624, 75},360 {1024, 768, 60},361 {1024, 768, 72},362 {1024, 768, 75},363 {1024, 768, 75},364 {1152, 870, 75},365 {1280, 960, 75},366 {1280, 1024, 75}367};368 369