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368 lines · 10.2 KiB

1/*
2 * linux/drivers/video/platinumfb-hw.c -- Frame buffer device for the
3 * Platinum on-board video in PowerMac 7200s (and some clones based
4 * on the same motherboard.)
5 *
6 * Created 09 Feb 1998 by Jon Howell <[email protected]>
7 *
8 * Copyright (C) 1998 Jon Howell
9 *
10 * based on drivers/macintosh/platinum.c: Console support
11 * 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 Uytterhoeven
16 *
17 * This file is subject to the terms and conditions of the GNU General Public
18 * License. See the file COPYING in the main directory of this archive
19 * 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 display
52 * out there. Older ones use the values in clocksel[1], for which
53 * the formula for the clock frequency seems to be
54 * F = 14.3MHz * c0 / (c1 & 0x1f) / (1 << (c1 >> 5))
55 * Newer ones use the values in clocksel[0], for which the formula
56 * seems to be
57 * 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 0x20
70#define DIV4 0x40
71#define DIV8 0x60
72#define DIV16 0x80
73
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 2Mb
163 */
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_20
337};
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