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Linux 4.19.133
[linux/fpc-iii.git] / drivers / video / fbdev / via / hw.c
blob48969c6445998a43fbfdd2654e539bf5c4a3a63c
1 /*
2 * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
3 * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
4
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public
7 * License as published by the Free Software Foundation;
8 * either version 2, or (at your option) any later version.
9
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
12 * the implied warranty of MERCHANTABILITY or FITNESS FOR
13 * A PARTICULAR PURPOSE.See the GNU General Public License
14 * for more details.
15
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc.,
19 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 */
21
22 #include <linux/via-core.h>
23 #include "global.h"
24 #include "via_clock.h"
25
26 static struct pll_limit cle266_pll_limits[] = {
27 {19, 19, 4, 0},
28 {26, 102, 5, 0},
29 {53, 112, 6, 0},
30 {41, 100, 7, 0},
31 {83, 108, 8, 0},
32 {87, 118, 9, 0},
33 {95, 115, 12, 0},
34 {108, 108, 13, 0},
35 {83, 83, 17, 0},
36 {67, 98, 20, 0},
37 {121, 121, 24, 0},
38 {99, 99, 29, 0},
39 {33, 33, 3, 1},
40 {15, 23, 4, 1},
41 {37, 121, 5, 1},
42 {82, 82, 6, 1},
43 {31, 84, 7, 1},
44 {83, 83, 8, 1},
45 {76, 127, 9, 1},
46 {33, 121, 4, 2},
47 {91, 118, 5, 2},
48 {83, 109, 6, 2},
49 {90, 90, 7, 2},
50 {93, 93, 2, 3},
51 {53, 53, 3, 3},
52 {73, 117, 4, 3},
53 {101, 127, 5, 3},
54 {99, 99, 7, 3}
55 };
56
57 static struct pll_limit k800_pll_limits[] = {
58 {22, 22, 2, 0},
59 {28, 28, 3, 0},
60 {81, 112, 3, 1},
61 {86, 166, 4, 1},
62 {109, 153, 5, 1},
63 {66, 116, 3, 2},
64 {93, 137, 4, 2},
65 {117, 208, 5, 2},
66 {30, 30, 2, 3},
67 {69, 125, 3, 3},
68 {89, 161, 4, 3},
69 {121, 208, 5, 3},
70 {66, 66, 2, 4},
71 {85, 85, 3, 4},
72 {141, 161, 4, 4},
73 {177, 177, 5, 4}
74 };
75
76 static struct pll_limit cx700_pll_limits[] = {
77 {98, 98, 3, 1},
78 {86, 86, 4, 1},
79 {109, 208, 5, 1},
80 {68, 68, 2, 2},
81 {95, 116, 3, 2},
82 {93, 166, 4, 2},
83 {110, 206, 5, 2},
84 {174, 174, 7, 2},
85 {82, 109, 3, 3},
86 {117, 161, 4, 3},
87 {112, 208, 5, 3},
88 {141, 202, 5, 4}
89 };
90
91 static struct pll_limit vx855_pll_limits[] = {
92 {86, 86, 4, 1},
93 {108, 208, 5, 1},
94 {110, 208, 5, 2},
95 {83, 112, 3, 3},
96 {103, 161, 4, 3},
97 {112, 209, 5, 3},
98 {142, 161, 4, 4},
99 {141, 176, 5, 4}
100 };
101
102 /* according to VIA Technologies these values are based on experiment */
103 static struct io_reg scaling_parameters[] = {
104 {VIACR, CR7A, 0xFF, 0x01}, /* LCD Scaling Parameter 1 */
105 {VIACR, CR7B, 0xFF, 0x02}, /* LCD Scaling Parameter 2 */
106 {VIACR, CR7C, 0xFF, 0x03}, /* LCD Scaling Parameter 3 */
107 {VIACR, CR7D, 0xFF, 0x04}, /* LCD Scaling Parameter 4 */
108 {VIACR, CR7E, 0xFF, 0x07}, /* LCD Scaling Parameter 5 */
109 {VIACR, CR7F, 0xFF, 0x0A}, /* LCD Scaling Parameter 6 */
110 {VIACR, CR80, 0xFF, 0x0D}, /* LCD Scaling Parameter 7 */
111 {VIACR, CR81, 0xFF, 0x13}, /* LCD Scaling Parameter 8 */
112 {VIACR, CR82, 0xFF, 0x16}, /* LCD Scaling Parameter 9 */
113 {VIACR, CR83, 0xFF, 0x19}, /* LCD Scaling Parameter 10 */
114 {VIACR, CR84, 0xFF, 0x1C}, /* LCD Scaling Parameter 11 */
115 {VIACR, CR85, 0xFF, 0x1D}, /* LCD Scaling Parameter 12 */
116 {VIACR, CR86, 0xFF, 0x1E}, /* LCD Scaling Parameter 13 */
117 {VIACR, CR87, 0xFF, 0x1F}, /* LCD Scaling Parameter 14 */
118 };
119
120 static struct io_reg common_vga[] = {
121 {VIACR, CR07, 0x10, 0x10}, /* [0] vertical total (bit 8)
122 [1] vertical display end (bit 8)
123 [2] vertical retrace start (bit 8)
124 [3] start vertical blanking (bit 8)
125 [4] line compare (bit 8)
126 [5] vertical total (bit 9)
127 [6] vertical display end (bit 9)
128 [7] vertical retrace start (bit 9) */
129 {VIACR, CR08, 0xFF, 0x00}, /* [0-4] preset row scan
130 [5-6] byte panning */
131 {VIACR, CR09, 0xDF, 0x40}, /* [0-4] max scan line
132 [5] start vertical blanking (bit 9)
133 [6] line compare (bit 9)
134 [7] scan doubling */
135 {VIACR, CR0A, 0xFF, 0x1E}, /* [0-4] cursor start
136 [5] cursor disable */
137 {VIACR, CR0B, 0xFF, 0x00}, /* [0-4] cursor end
138 [5-6] cursor skew */
139 {VIACR, CR0E, 0xFF, 0x00}, /* [0-7] cursor location (high) */
140 {VIACR, CR0F, 0xFF, 0x00}, /* [0-7] cursor location (low) */
141 {VIACR, CR11, 0xF0, 0x80}, /* [0-3] vertical retrace end
142 [6] memory refresh bandwidth
143 [7] CRTC register protect enable */
144 {VIACR, CR14, 0xFF, 0x00}, /* [0-4] underline location
145 [5] divide memory address clock by 4
146 [6] double word addressing */
147 {VIACR, CR17, 0xFF, 0x63}, /* [0-1] mapping of display address 13-14
148 [2] divide scan line clock by 2
149 [3] divide memory address clock by 2
150 [5] address wrap
151 [6] byte mode select
152 [7] sync enable */
153 {VIACR, CR18, 0xFF, 0xFF}, /* [0-7] line compare */
154 };
155
156 static struct fifo_depth_select display_fifo_depth_reg = {
157 /* IGA1 FIFO Depth_Select */
158 {IGA1_FIFO_DEPTH_SELECT_REG_NUM, {{SR17, 0, 7} } },
159 /* IGA2 FIFO Depth_Select */
160 {IGA2_FIFO_DEPTH_SELECT_REG_NUM,
161 {{CR68, 4, 7}, {CR94, 7, 7}, {CR95, 7, 7} } }
162 };
163
164 static struct fifo_threshold_select fifo_threshold_select_reg = {
165 /* IGA1 FIFO Threshold Select */
166 {IGA1_FIFO_THRESHOLD_REG_NUM, {{SR16, 0, 5}, {SR16, 7, 7} } },
167 /* IGA2 FIFO Threshold Select */
168 {IGA2_FIFO_THRESHOLD_REG_NUM, {{CR68, 0, 3}, {CR95, 4, 6} } }
169 };
170
171 static struct fifo_high_threshold_select fifo_high_threshold_select_reg = {
172 /* IGA1 FIFO High Threshold Select */
173 {IGA1_FIFO_HIGH_THRESHOLD_REG_NUM, {{SR18, 0, 5}, {SR18, 7, 7} } },
174 /* IGA2 FIFO High Threshold Select */
175 {IGA2_FIFO_HIGH_THRESHOLD_REG_NUM, {{CR92, 0, 3}, {CR95, 0, 2} } }
176 };
177
178 static struct display_queue_expire_num display_queue_expire_num_reg = {
179 /* IGA1 Display Queue Expire Num */
180 {IGA1_DISPLAY_QUEUE_EXPIRE_NUM_REG_NUM, {{SR22, 0, 4} } },
181 /* IGA2 Display Queue Expire Num */
182 {IGA2_DISPLAY_QUEUE_EXPIRE_NUM_REG_NUM, {{CR94, 0, 6} } }
183 };
184
185 /* Definition Fetch Count Registers*/
186 static struct fetch_count fetch_count_reg = {
187 /* IGA1 Fetch Count Register */
188 {IGA1_FETCH_COUNT_REG_NUM, {{SR1C, 0, 7}, {SR1D, 0, 1} } },
189 /* IGA2 Fetch Count Register */
190 {IGA2_FETCH_COUNT_REG_NUM, {{CR65, 0, 7}, {CR67, 2, 3} } }
191 };
192
193 static struct rgbLUT palLUT_table[] = {
194 /* {R,G,B} */
195 /* Index 0x00~0x03 */
196 {0x00, 0x00, 0x00}, {0x00, 0x00, 0x2A}, {0x00, 0x2A, 0x00}, {0x00,
197 0x2A,
198 0x2A},
199 /* Index 0x04~0x07 */
200 {0x2A, 0x00, 0x00}, {0x2A, 0x00, 0x2A}, {0x2A, 0x15, 0x00}, {0x2A,
201 0x2A,
202 0x2A},
203 /* Index 0x08~0x0B */
204 {0x15, 0x15, 0x15}, {0x15, 0x15, 0x3F}, {0x15, 0x3F, 0x15}, {0x15,
205 0x3F,
206 0x3F},
207 /* Index 0x0C~0x0F */
208 {0x3F, 0x15, 0x15}, {0x3F, 0x15, 0x3F}, {0x3F, 0x3F, 0x15}, {0x3F,
209 0x3F,
210 0x3F},
211 /* Index 0x10~0x13 */
212 {0x00, 0x00, 0x00}, {0x05, 0x05, 0x05}, {0x08, 0x08, 0x08}, {0x0B,
213 0x0B,
214 0x0B},
215 /* Index 0x14~0x17 */
216 {0x0E, 0x0E, 0x0E}, {0x11, 0x11, 0x11}, {0x14, 0x14, 0x14}, {0x18,
217 0x18,
218 0x18},
219 /* Index 0x18~0x1B */
220 {0x1C, 0x1C, 0x1C}, {0x20, 0x20, 0x20}, {0x24, 0x24, 0x24}, {0x28,
221 0x28,
222 0x28},
223 /* Index 0x1C~0x1F */
224 {0x2D, 0x2D, 0x2D}, {0x32, 0x32, 0x32}, {0x38, 0x38, 0x38}, {0x3F,
225 0x3F,
226 0x3F},
227 /* Index 0x20~0x23 */
228 {0x00, 0x00, 0x3F}, {0x10, 0x00, 0x3F}, {0x1F, 0x00, 0x3F}, {0x2F,
229 0x00,
230 0x3F},
231 /* Index 0x24~0x27 */
232 {0x3F, 0x00, 0x3F}, {0x3F, 0x00, 0x2F}, {0x3F, 0x00, 0x1F}, {0x3F,
233 0x00,
234 0x10},
235 /* Index 0x28~0x2B */
236 {0x3F, 0x00, 0x00}, {0x3F, 0x10, 0x00}, {0x3F, 0x1F, 0x00}, {0x3F,
237 0x2F,
238 0x00},
239 /* Index 0x2C~0x2F */
240 {0x3F, 0x3F, 0x00}, {0x2F, 0x3F, 0x00}, {0x1F, 0x3F, 0x00}, {0x10,
241 0x3F,
242 0x00},
243 /* Index 0x30~0x33 */
244 {0x00, 0x3F, 0x00}, {0x00, 0x3F, 0x10}, {0x00, 0x3F, 0x1F}, {0x00,
245 0x3F,
246 0x2F},
247 /* Index 0x34~0x37 */
248 {0x00, 0x3F, 0x3F}, {0x00, 0x2F, 0x3F}, {0x00, 0x1F, 0x3F}, {0x00,
249 0x10,
250 0x3F},
251 /* Index 0x38~0x3B */
252 {0x1F, 0x1F, 0x3F}, {0x27, 0x1F, 0x3F}, {0x2F, 0x1F, 0x3F}, {0x37,
253 0x1F,
254 0x3F},
255 /* Index 0x3C~0x3F */
256 {0x3F, 0x1F, 0x3F}, {0x3F, 0x1F, 0x37}, {0x3F, 0x1F, 0x2F}, {0x3F,
257 0x1F,
258 0x27},
259 /* Index 0x40~0x43 */
260 {0x3F, 0x1F, 0x1F}, {0x3F, 0x27, 0x1F}, {0x3F, 0x2F, 0x1F}, {0x3F,
261 0x3F,
262 0x1F},
263 /* Index 0x44~0x47 */
264 {0x3F, 0x3F, 0x1F}, {0x37, 0x3F, 0x1F}, {0x2F, 0x3F, 0x1F}, {0x27,
265 0x3F,
266 0x1F},
267 /* Index 0x48~0x4B */
268 {0x1F, 0x3F, 0x1F}, {0x1F, 0x3F, 0x27}, {0x1F, 0x3F, 0x2F}, {0x1F,
269 0x3F,
270 0x37},
271 /* Index 0x4C~0x4F */
272 {0x1F, 0x3F, 0x3F}, {0x1F, 0x37, 0x3F}, {0x1F, 0x2F, 0x3F}, {0x1F,
273 0x27,
274 0x3F},
275 /* Index 0x50~0x53 */
276 {0x2D, 0x2D, 0x3F}, {0x31, 0x2D, 0x3F}, {0x36, 0x2D, 0x3F}, {0x3A,
277 0x2D,
278 0x3F},
279 /* Index 0x54~0x57 */
280 {0x3F, 0x2D, 0x3F}, {0x3F, 0x2D, 0x3A}, {0x3F, 0x2D, 0x36}, {0x3F,
281 0x2D,
282 0x31},
283 /* Index 0x58~0x5B */
284 {0x3F, 0x2D, 0x2D}, {0x3F, 0x31, 0x2D}, {0x3F, 0x36, 0x2D}, {0x3F,
285 0x3A,
286 0x2D},
287 /* Index 0x5C~0x5F */
288 {0x3F, 0x3F, 0x2D}, {0x3A, 0x3F, 0x2D}, {0x36, 0x3F, 0x2D}, {0x31,
289 0x3F,
290 0x2D},
291 /* Index 0x60~0x63 */
292 {0x2D, 0x3F, 0x2D}, {0x2D, 0x3F, 0x31}, {0x2D, 0x3F, 0x36}, {0x2D,
293 0x3F,
294 0x3A},
295 /* Index 0x64~0x67 */
296 {0x2D, 0x3F, 0x3F}, {0x2D, 0x3A, 0x3F}, {0x2D, 0x36, 0x3F}, {0x2D,
297 0x31,
298 0x3F},
299 /* Index 0x68~0x6B */
300 {0x00, 0x00, 0x1C}, {0x07, 0x00, 0x1C}, {0x0E, 0x00, 0x1C}, {0x15,
301 0x00,
302 0x1C},
303 /* Index 0x6C~0x6F */
304 {0x1C, 0x00, 0x1C}, {0x1C, 0x00, 0x15}, {0x1C, 0x00, 0x0E}, {0x1C,
305 0x00,
306 0x07},
307 /* Index 0x70~0x73 */
308 {0x1C, 0x00, 0x00}, {0x1C, 0x07, 0x00}, {0x1C, 0x0E, 0x00}, {0x1C,
309 0x15,
310 0x00},
311 /* Index 0x74~0x77 */
312 {0x1C, 0x1C, 0x00}, {0x15, 0x1C, 0x00}, {0x0E, 0x1C, 0x00}, {0x07,
313 0x1C,
314 0x00},
315 /* Index 0x78~0x7B */
316 {0x00, 0x1C, 0x00}, {0x00, 0x1C, 0x07}, {0x00, 0x1C, 0x0E}, {0x00,
317 0x1C,
318 0x15},
319 /* Index 0x7C~0x7F */
320 {0x00, 0x1C, 0x1C}, {0x00, 0x15, 0x1C}, {0x00, 0x0E, 0x1C}, {0x00,
321 0x07,
322 0x1C},
323 /* Index 0x80~0x83 */
324 {0x0E, 0x0E, 0x1C}, {0x11, 0x0E, 0x1C}, {0x15, 0x0E, 0x1C}, {0x18,
325 0x0E,
326 0x1C},
327 /* Index 0x84~0x87 */
328 {0x1C, 0x0E, 0x1C}, {0x1C, 0x0E, 0x18}, {0x1C, 0x0E, 0x15}, {0x1C,
329 0x0E,
330 0x11},
331 /* Index 0x88~0x8B */
332 {0x1C, 0x0E, 0x0E}, {0x1C, 0x11, 0x0E}, {0x1C, 0x15, 0x0E}, {0x1C,
333 0x18,
334 0x0E},
335 /* Index 0x8C~0x8F */
336 {0x1C, 0x1C, 0x0E}, {0x18, 0x1C, 0x0E}, {0x15, 0x1C, 0x0E}, {0x11,
337 0x1C,
338 0x0E},
339 /* Index 0x90~0x93 */
340 {0x0E, 0x1C, 0x0E}, {0x0E, 0x1C, 0x11}, {0x0E, 0x1C, 0x15}, {0x0E,
341 0x1C,
342 0x18},
343 /* Index 0x94~0x97 */
344 {0x0E, 0x1C, 0x1C}, {0x0E, 0x18, 0x1C}, {0x0E, 0x15, 0x1C}, {0x0E,
345 0x11,
346 0x1C},
347 /* Index 0x98~0x9B */
348 {0x14, 0x14, 0x1C}, {0x16, 0x14, 0x1C}, {0x18, 0x14, 0x1C}, {0x1A,
349 0x14,
350 0x1C},
351 /* Index 0x9C~0x9F */
352 {0x1C, 0x14, 0x1C}, {0x1C, 0x14, 0x1A}, {0x1C, 0x14, 0x18}, {0x1C,
353 0x14,
354 0x16},
355 /* Index 0xA0~0xA3 */
356 {0x1C, 0x14, 0x14}, {0x1C, 0x16, 0x14}, {0x1C, 0x18, 0x14}, {0x1C,
357 0x1A,
358 0x14},
359 /* Index 0xA4~0xA7 */
360 {0x1C, 0x1C, 0x14}, {0x1A, 0x1C, 0x14}, {0x18, 0x1C, 0x14}, {0x16,
361 0x1C,
362 0x14},
363 /* Index 0xA8~0xAB */
364 {0x14, 0x1C, 0x14}, {0x14, 0x1C, 0x16}, {0x14, 0x1C, 0x18}, {0x14,
365 0x1C,
366 0x1A},
367 /* Index 0xAC~0xAF */
368 {0x14, 0x1C, 0x1C}, {0x14, 0x1A, 0x1C}, {0x14, 0x18, 0x1C}, {0x14,
369 0x16,
370 0x1C},
371 /* Index 0xB0~0xB3 */
372 {0x00, 0x00, 0x10}, {0x04, 0x00, 0x10}, {0x08, 0x00, 0x10}, {0x0C,
373 0x00,
374 0x10},
375 /* Index 0xB4~0xB7 */
376 {0x10, 0x00, 0x10}, {0x10, 0x00, 0x0C}, {0x10, 0x00, 0x08}, {0x10,
377 0x00,
378 0x04},
379 /* Index 0xB8~0xBB */
380 {0x10, 0x00, 0x00}, {0x10, 0x04, 0x00}, {0x10, 0x08, 0x00}, {0x10,
381 0x0C,
382 0x00},
383 /* Index 0xBC~0xBF */
384 {0x10, 0x10, 0x00}, {0x0C, 0x10, 0x00}, {0x08, 0x10, 0x00}, {0x04,
385 0x10,
386 0x00},
387 /* Index 0xC0~0xC3 */
388 {0x00, 0x10, 0x00}, {0x00, 0x10, 0x04}, {0x00, 0x10, 0x08}, {0x00,
389 0x10,
390 0x0C},
391 /* Index 0xC4~0xC7 */
392 {0x00, 0x10, 0x10}, {0x00, 0x0C, 0x10}, {0x00, 0x08, 0x10}, {0x00,
393 0x04,
394 0x10},
395 /* Index 0xC8~0xCB */
396 {0x08, 0x08, 0x10}, {0x0A, 0x08, 0x10}, {0x0C, 0x08, 0x10}, {0x0E,
397 0x08,
398 0x10},
399 /* Index 0xCC~0xCF */
400 {0x10, 0x08, 0x10}, {0x10, 0x08, 0x0E}, {0x10, 0x08, 0x0C}, {0x10,
401 0x08,
402 0x0A},
403 /* Index 0xD0~0xD3 */
404 {0x10, 0x08, 0x08}, {0x10, 0x0A, 0x08}, {0x10, 0x0C, 0x08}, {0x10,
405 0x0E,
406 0x08},
407 /* Index 0xD4~0xD7 */
408 {0x10, 0x10, 0x08}, {0x0E, 0x10, 0x08}, {0x0C, 0x10, 0x08}, {0x0A,
409 0x10,
410 0x08},
411 /* Index 0xD8~0xDB */
412 {0x08, 0x10, 0x08}, {0x08, 0x10, 0x0A}, {0x08, 0x10, 0x0C}, {0x08,
413 0x10,
414 0x0E},
415 /* Index 0xDC~0xDF */
416 {0x08, 0x10, 0x10}, {0x08, 0x0E, 0x10}, {0x08, 0x0C, 0x10}, {0x08,
417 0x0A,
418 0x10},
419 /* Index 0xE0~0xE3 */
420 {0x0B, 0x0B, 0x10}, {0x0C, 0x0B, 0x10}, {0x0D, 0x0B, 0x10}, {0x0F,
421 0x0B,
422 0x10},
423 /* Index 0xE4~0xE7 */
424 {0x10, 0x0B, 0x10}, {0x10, 0x0B, 0x0F}, {0x10, 0x0B, 0x0D}, {0x10,
425 0x0B,
426 0x0C},
427 /* Index 0xE8~0xEB */
428 {0x10, 0x0B, 0x0B}, {0x10, 0x0C, 0x0B}, {0x10, 0x0D, 0x0B}, {0x10,
429 0x0F,
430 0x0B},
431 /* Index 0xEC~0xEF */
432 {0x10, 0x10, 0x0B}, {0x0F, 0x10, 0x0B}, {0x0D, 0x10, 0x0B}, {0x0C,
433 0x10,
434 0x0B},
435 /* Index 0xF0~0xF3 */
436 {0x0B, 0x10, 0x0B}, {0x0B, 0x10, 0x0C}, {0x0B, 0x10, 0x0D}, {0x0B,
437 0x10,
438 0x0F},
439 /* Index 0xF4~0xF7 */
440 {0x0B, 0x10, 0x10}, {0x0B, 0x0F, 0x10}, {0x0B, 0x0D, 0x10}, {0x0B,
441 0x0C,
442 0x10},
443 /* Index 0xF8~0xFB */
444 {0x00, 0x00, 0x00}, {0x00, 0x00, 0x00}, {0x00, 0x00, 0x00}, {0x00,
445 0x00,
446 0x00},
447 /* Index 0xFC~0xFF */
448 {0x00, 0x00, 0x00}, {0x00, 0x00, 0x00}, {0x00, 0x00, 0x00}, {0x00,
449 0x00,
450 0x00}
451 };
452
453 static struct via_device_mapping device_mapping[] = {
454 {VIA_LDVP0, "LDVP0"},
455 {VIA_LDVP1, "LDVP1"},
456 {VIA_DVP0, "DVP0"},
457 {VIA_CRT, "CRT"},
458 {VIA_DVP1, "DVP1"},
459 {VIA_LVDS1, "LVDS1"},
460 {VIA_LVDS2, "LVDS2"}
461 };
462
463 /* structure with function pointers to support clock control */
464 static struct via_clock clock;
465
466 static void load_fix_bit_crtc_reg(void);
467 static void init_gfx_chip_info(int chip_type);
468 static void init_tmds_chip_info(void);
469 static void init_lvds_chip_info(void);
470 static void device_screen_off(void);
471 static void device_screen_on(void);
472 static void set_display_channel(void);
473 static void device_off(void);
474 static void device_on(void);
475 static void enable_second_display_channel(void);
476 static void disable_second_display_channel(void);
477
478 void viafb_lock_crt(void)
479 {
480 viafb_write_reg_mask(CR11, VIACR, BIT7, BIT7);
481 }
482
483 void viafb_unlock_crt(void)
484 {
485 viafb_write_reg_mask(CR11, VIACR, 0, BIT7);
486 viafb_write_reg_mask(CR47, VIACR, 0, BIT0);
487 }
488
489 static void write_dac_reg(u8 index, u8 r, u8 g, u8 b)
490 {
491 outb(index, LUT_INDEX_WRITE);
492 outb(r, LUT_DATA);
493 outb(g, LUT_DATA);
494 outb(b, LUT_DATA);
495 }
496
497 static u32 get_dvi_devices(int output_interface)
498 {
499 switch (output_interface) {
500 case INTERFACE_DVP0:
501 return VIA_DVP0 | VIA_LDVP0;
502
503 case INTERFACE_DVP1:
504 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)
505 return VIA_LDVP1;
506 else
507 return VIA_DVP1;
508
509 case INTERFACE_DFP_HIGH:
510 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)
511 return 0;
512 else
513 return VIA_LVDS2 | VIA_DVP0;
514
515 case INTERFACE_DFP_LOW:
516 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)
517 return 0;
518 else
519 return VIA_DVP1 | VIA_LVDS1;
520
521 case INTERFACE_TMDS:
522 return VIA_LVDS1;
523 }
524
525 return 0;
526 }
527
528 static u32 get_lcd_devices(int output_interface)
529 {
530 switch (output_interface) {
531 case INTERFACE_DVP0:
532 return VIA_DVP0;
533
534 case INTERFACE_DVP1:
535 return VIA_DVP1;
536
537 case INTERFACE_DFP_HIGH:
538 return VIA_LVDS2 | VIA_DVP0;
539
540 case INTERFACE_DFP_LOW:
541 return VIA_LVDS1 | VIA_DVP1;
542
543 case INTERFACE_DFP:
544 return VIA_LVDS1 | VIA_LVDS2;
545
546 case INTERFACE_LVDS0:
547 case INTERFACE_LVDS0LVDS1:
548 return VIA_LVDS1;
549
550 case INTERFACE_LVDS1:
551 return VIA_LVDS2;
552 }
553
554 return 0;
555 }
556
557 /*Set IGA path for each device*/
558 void viafb_set_iga_path(void)
559 {
560 int crt_iga_path = 0;
561
562 if (viafb_SAMM_ON == 1) {
563 if (viafb_CRT_ON) {
564 if (viafb_primary_dev == CRT_Device)
565 crt_iga_path = IGA1;
566 else
567 crt_iga_path = IGA2;
568 }
569
570 if (viafb_DVI_ON) {
571 if (viafb_primary_dev == DVI_Device)
572 viaparinfo->tmds_setting_info->iga_path = IGA1;
573 else
574 viaparinfo->tmds_setting_info->iga_path = IGA2;
575 }
576
577 if (viafb_LCD_ON) {
578 if (viafb_primary_dev == LCD_Device) {
579 if (viafb_dual_fb &&
580 (viaparinfo->chip_info->gfx_chip_name ==
581 UNICHROME_CLE266)) {
582 viaparinfo->
583 lvds_setting_info->iga_path = IGA2;
584 crt_iga_path = IGA1;
585 viaparinfo->
586 tmds_setting_info->iga_path = IGA1;
587 } else
588 viaparinfo->
589 lvds_setting_info->iga_path = IGA1;
590 } else {
591 viaparinfo->lvds_setting_info->iga_path = IGA2;
592 }
593 }
594 if (viafb_LCD2_ON) {
595 if (LCD2_Device == viafb_primary_dev)
596 viaparinfo->lvds_setting_info2->iga_path = IGA1;
597 else
598 viaparinfo->lvds_setting_info2->iga_path = IGA2;
599 }
600 } else {
601 viafb_SAMM_ON = 0;
602
603 if (viafb_CRT_ON && viafb_LCD_ON) {
604 crt_iga_path = IGA1;
605 viaparinfo->lvds_setting_info->iga_path = IGA2;
606 } else if (viafb_CRT_ON && viafb_DVI_ON) {
607 crt_iga_path = IGA1;
608 viaparinfo->tmds_setting_info->iga_path = IGA2;
609 } else if (viafb_LCD_ON && viafb_DVI_ON) {
610 viaparinfo->tmds_setting_info->iga_path = IGA1;
611 viaparinfo->lvds_setting_info->iga_path = IGA2;
612 } else if (viafb_LCD_ON && viafb_LCD2_ON) {
613 viaparinfo->lvds_setting_info->iga_path = IGA2;
614 viaparinfo->lvds_setting_info2->iga_path = IGA2;
615 } else if (viafb_CRT_ON) {
616 crt_iga_path = IGA1;
617 } else if (viafb_LCD_ON) {
618 viaparinfo->lvds_setting_info->iga_path = IGA2;
619 } else if (viafb_DVI_ON) {
620 viaparinfo->tmds_setting_info->iga_path = IGA1;
621 }
622 }
623
624 viaparinfo->shared->iga1_devices = 0;
625 viaparinfo->shared->iga2_devices = 0;
626 if (viafb_CRT_ON) {
627 if (crt_iga_path == IGA1)
628 viaparinfo->shared->iga1_devices |= VIA_CRT;
629 else
630 viaparinfo->shared->iga2_devices |= VIA_CRT;
631 }
632
633 if (viafb_DVI_ON) {
634 if (viaparinfo->tmds_setting_info->iga_path == IGA1)
635 viaparinfo->shared->iga1_devices |= get_dvi_devices(
636 viaparinfo->chip_info->
637 tmds_chip_info.output_interface);
638 else
639 viaparinfo->shared->iga2_devices |= get_dvi_devices(
640 viaparinfo->chip_info->
641 tmds_chip_info.output_interface);
642 }
643
644 if (viafb_LCD_ON) {
645 if (viaparinfo->lvds_setting_info->iga_path == IGA1)
646 viaparinfo->shared->iga1_devices |= get_lcd_devices(
647 viaparinfo->chip_info->
648 lvds_chip_info.output_interface);
649 else
650 viaparinfo->shared->iga2_devices |= get_lcd_devices(
651 viaparinfo->chip_info->
652 lvds_chip_info.output_interface);
653 }
654
655 if (viafb_LCD2_ON) {
656 if (viaparinfo->lvds_setting_info2->iga_path == IGA1)
657 viaparinfo->shared->iga1_devices |= get_lcd_devices(
658 viaparinfo->chip_info->
659 lvds_chip_info2.output_interface);
660 else
661 viaparinfo->shared->iga2_devices |= get_lcd_devices(
662 viaparinfo->chip_info->
663 lvds_chip_info2.output_interface);
664 }
665
666 /* looks like the OLPC has its display wired to DVP1 and LVDS2 */
667 if (machine_is_olpc())
668 viaparinfo->shared->iga2_devices = VIA_DVP1 | VIA_LVDS2;
669 }
670
671 static void set_color_register(u8 index, u8 red, u8 green, u8 blue)
672 {
673 outb(0xFF, 0x3C6); /* bit mask of palette */
674 outb(index, 0x3C8);
675 outb(red, 0x3C9);
676 outb(green, 0x3C9);
677 outb(blue, 0x3C9);
678 }
679
680 void viafb_set_primary_color_register(u8 index, u8 red, u8 green, u8 blue)
681 {
682 viafb_write_reg_mask(0x1A, VIASR, 0x00, 0x01);
683 set_color_register(index, red, green, blue);
684 }
685
686 void viafb_set_secondary_color_register(u8 index, u8 red, u8 green, u8 blue)
687 {
688 viafb_write_reg_mask(0x1A, VIASR, 0x01, 0x01);
689 set_color_register(index, red, green, blue);
690 }
691
692 static void set_source_common(u8 index, u8 offset, u8 iga)
693 {
694 u8 value, mask = 1 << offset;
695
696 switch (iga) {
697 case IGA1:
698 value = 0x00;
699 break;
700 case IGA2:
701 value = mask;
702 break;
703 default:
704 printk(KERN_WARNING "viafb: Unsupported source: %d\n", iga);
705 return;
706 }
707
708 via_write_reg_mask(VIACR, index, value, mask);
709 }
710
711 static void set_crt_source(u8 iga)
712 {
713 u8 value;
714
715 switch (iga) {
716 case IGA1:
717 value = 0x00;
718 break;
719 case IGA2:
720 value = 0x40;
721 break;
722 default:
723 printk(KERN_WARNING "viafb: Unsupported source: %d\n", iga);
724 return;
725 }
726
727 via_write_reg_mask(VIASR, 0x16, value, 0x40);
728 }
729
730 static inline void set_ldvp0_source(u8 iga)
731 {
732 set_source_common(0x6C, 7, iga);
733 }
734
735 static inline void set_ldvp1_source(u8 iga)
736 {
737 set_source_common(0x93, 7, iga);
738 }
739
740 static inline void set_dvp0_source(u8 iga)
741 {
742 set_source_common(0x96, 4, iga);
743 }
744
745 static inline void set_dvp1_source(u8 iga)
746 {
747 set_source_common(0x9B, 4, iga);
748 }
749
750 static inline void set_lvds1_source(u8 iga)
751 {
752 set_source_common(0x99, 4, iga);
753 }
754
755 static inline void set_lvds2_source(u8 iga)
756 {
757 set_source_common(0x97, 4, iga);
758 }
759
760 void via_set_source(u32 devices, u8 iga)
761 {
762 if (devices & VIA_LDVP0)
763 set_ldvp0_source(iga);
764 if (devices & VIA_LDVP1)
765 set_ldvp1_source(iga);
766 if (devices & VIA_DVP0)
767 set_dvp0_source(iga);
768 if (devices & VIA_CRT)
769 set_crt_source(iga);
770 if (devices & VIA_DVP1)
771 set_dvp1_source(iga);
772 if (devices & VIA_LVDS1)
773 set_lvds1_source(iga);
774 if (devices & VIA_LVDS2)
775 set_lvds2_source(iga);
776 }
777
778 static void set_crt_state(u8 state)
779 {
780 u8 value;
781
782 switch (state) {
783 case VIA_STATE_ON:
784 value = 0x00;
785 break;
786 case VIA_STATE_STANDBY:
787 value = 0x10;
788 break;
789 case VIA_STATE_SUSPEND:
790 value = 0x20;
791 break;
792 case VIA_STATE_OFF:
793 value = 0x30;
794 break;
795 default:
796 return;
797 }
798
799 via_write_reg_mask(VIACR, 0x36, value, 0x30);
800 }
801
802 static void set_dvp0_state(u8 state)
803 {
804 u8 value;
805
806 switch (state) {
807 case VIA_STATE_ON:
808 value = 0xC0;
809 break;
810 case VIA_STATE_OFF:
811 value = 0x00;
812 break;
813 default:
814 return;
815 }
816
817 via_write_reg_mask(VIASR, 0x1E, value, 0xC0);
818 }
819
820 static void set_dvp1_state(u8 state)
821 {
822 u8 value;
823
824 switch (state) {
825 case VIA_STATE_ON:
826 value = 0x30;
827 break;
828 case VIA_STATE_OFF:
829 value = 0x00;
830 break;
831 default:
832 return;
833 }
834
835 via_write_reg_mask(VIASR, 0x1E, value, 0x30);
836 }
837
838 static void set_lvds1_state(u8 state)
839 {
840 u8 value;
841
842 switch (state) {
843 case VIA_STATE_ON:
844 value = 0x03;
845 break;
846 case VIA_STATE_OFF:
847 value = 0x00;
848 break;
849 default:
850 return;
851 }
852
853 via_write_reg_mask(VIASR, 0x2A, value, 0x03);
854 }
855
856 static void set_lvds2_state(u8 state)
857 {
858 u8 value;
859
860 switch (state) {
861 case VIA_STATE_ON:
862 value = 0x0C;
863 break;
864 case VIA_STATE_OFF:
865 value = 0x00;
866 break;
867 default:
868 return;
869 }
870
871 via_write_reg_mask(VIASR, 0x2A, value, 0x0C);
872 }
873
874 void via_set_state(u32 devices, u8 state)
875 {
876 /*
877 TODO: Can we enable/disable these devices? How?
878 if (devices & VIA_LDVP0)
879 if (devices & VIA_LDVP1)
880 */
881 if (devices & VIA_DVP0)
882 set_dvp0_state(state);
883 if (devices & VIA_CRT)
884 set_crt_state(state);
885 if (devices & VIA_DVP1)
886 set_dvp1_state(state);
887 if (devices & VIA_LVDS1)
888 set_lvds1_state(state);
889 if (devices & VIA_LVDS2)
890 set_lvds2_state(state);
891 }
892
893 void via_set_sync_polarity(u32 devices, u8 polarity)
894 {
895 if (polarity & ~(VIA_HSYNC_NEGATIVE | VIA_VSYNC_NEGATIVE)) {
896 printk(KERN_WARNING "viafb: Unsupported polarity: %d\n",
897 polarity);
898 return;
899 }
900
901 if (devices & VIA_CRT)
902 via_write_misc_reg_mask(polarity << 6, 0xC0);
903 if (devices & VIA_DVP1)
904 via_write_reg_mask(VIACR, 0x9B, polarity << 5, 0x60);
905 if (devices & VIA_LVDS1)
906 via_write_reg_mask(VIACR, 0x99, polarity << 5, 0x60);
907 if (devices & VIA_LVDS2)
908 via_write_reg_mask(VIACR, 0x97, polarity << 5, 0x60);
909 }
910
911 u32 via_parse_odev(char *input, char **end)
912 {
913 char *ptr = input;
914 u32 odev = 0;
915 bool next = true;
916 int i, len;
917
918 while (next) {
919 next = false;
920 for (i = 0; i < ARRAY_SIZE(device_mapping); i++) {
921 len = strlen(device_mapping[i].name);
922 if (!strncmp(ptr, device_mapping[i].name, len)) {
923 odev |= device_mapping[i].device;
924 ptr += len;
925 if (*ptr == ',') {
926 ptr++;
927 next = true;
928 }
929 }
930 }
931 }
932
933 *end = ptr;
934 return odev;
935 }
936
937 void via_odev_to_seq(struct seq_file *m, u32 odev)
938 {
939 int i, count = 0;
940
941 for (i = 0; i < ARRAY_SIZE(device_mapping); i++) {
942 if (odev & device_mapping[i].device) {
943 if (count > 0)
944 seq_putc(m, ',');
945
946 seq_puts(m, device_mapping[i].name);
947 count++;
948 }
949 }
950
951 seq_putc(m, '\n');
952 }
953
954 static void load_fix_bit_crtc_reg(void)
955 {
956 viafb_unlock_crt();
957
958 /* always set to 1 */
959 viafb_write_reg_mask(CR03, VIACR, 0x80, BIT7);
960 /* line compare should set all bits = 1 (extend modes) */
961 viafb_write_reg_mask(CR35, VIACR, 0x10, BIT4);
962 /* line compare should set all bits = 1 (extend modes) */
963 viafb_write_reg_mask(CR33, VIACR, 0x06, BIT0 + BIT1 + BIT2);
964 /*viafb_write_reg_mask(CR32, VIACR, 0x01, BIT0); */
965
966 viafb_lock_crt();
967
968 /* If K8M800, enable Prefetch Mode. */
969 if ((viaparinfo->chip_info->gfx_chip_name == UNICHROME_K800)
970 || (viaparinfo->chip_info->gfx_chip_name == UNICHROME_K8M890))
971 viafb_write_reg_mask(CR33, VIACR, 0x08, BIT3);
972 if ((viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)
973 && (viaparinfo->chip_info->gfx_chip_revision == CLE266_REVISION_AX))
974 viafb_write_reg_mask(SR1A, VIASR, 0x02, BIT1);
975
976 }
977
978 void viafb_load_reg(int timing_value, int viafb_load_reg_num,
979 struct io_register *reg,
980 int io_type)
981 {
982 int reg_mask;
983 int bit_num = 0;
984 int data;
985 int i, j;
986 int shift_next_reg;
987 int start_index, end_index, cr_index;
988 u16 get_bit;
989
990 for (i = 0; i < viafb_load_reg_num; i++) {
991 reg_mask = 0;
992 data = 0;
993 start_index = reg[i].start_bit;
994 end_index = reg[i].end_bit;
995 cr_index = reg[i].io_addr;
996
997 shift_next_reg = bit_num;
998 for (j = start_index; j <= end_index; j++) {
999 /*if (bit_num==8) timing_value = timing_value >>8; */
1000 reg_mask = reg_mask | (BIT0 << j);
1001 get_bit = (timing_value & (BIT0 << bit_num));
1002 data =
1003 data | ((get_bit >> shift_next_reg) << start_index);
1004 bit_num++;
1005 }
1006 if (io_type == VIACR)
1007 viafb_write_reg_mask(cr_index, VIACR, data, reg_mask);
1008 else
1009 viafb_write_reg_mask(cr_index, VIASR, data, reg_mask);
1010 }
1011
1012 }
1013
1014 /* Write Registers */
1015 void viafb_write_regx(struct io_reg RegTable[], int ItemNum)
1016 {
1017 int i;
1018
1019 /*DEBUG_MSG(KERN_INFO "Table Size : %x!!\n",ItemNum ); */
1020
1021 for (i = 0; i < ItemNum; i++)
1022 via_write_reg_mask(RegTable[i].port, RegTable[i].index,
1023 RegTable[i].value, RegTable[i].mask);
1024 }
1025
1026 void viafb_load_fetch_count_reg(int h_addr, int bpp_byte, int set_iga)
1027 {
1028 int reg_value;
1029 int viafb_load_reg_num;
1030 struct io_register *reg = NULL;
1031
1032 switch (set_iga) {
1033 case IGA1:
1034 reg_value = IGA1_FETCH_COUNT_FORMULA(h_addr, bpp_byte);
1035 viafb_load_reg_num = fetch_count_reg.
1036 iga1_fetch_count_reg.reg_num;
1037 reg = fetch_count_reg.iga1_fetch_count_reg.reg;
1038 viafb_load_reg(reg_value, viafb_load_reg_num, reg, VIASR);
1039 break;
1040 case IGA2:
1041 reg_value = IGA2_FETCH_COUNT_FORMULA(h_addr, bpp_byte);
1042 viafb_load_reg_num = fetch_count_reg.
1043 iga2_fetch_count_reg.reg_num;
1044 reg = fetch_count_reg.iga2_fetch_count_reg.reg;
1045 viafb_load_reg(reg_value, viafb_load_reg_num, reg, VIACR);
1046 break;
1047 }
1048
1049 }
1050
1051 void viafb_load_FIFO_reg(int set_iga, int hor_active, int ver_active)
1052 {
1053 int reg_value;
1054 int viafb_load_reg_num;
1055 struct io_register *reg = NULL;
1056 int iga1_fifo_max_depth = 0, iga1_fifo_threshold =
1057 0, iga1_fifo_high_threshold = 0, iga1_display_queue_expire_num = 0;
1058 int iga2_fifo_max_depth = 0, iga2_fifo_threshold =
1059 0, iga2_fifo_high_threshold = 0, iga2_display_queue_expire_num = 0;
1060
1061 if (set_iga == IGA1) {
1062 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_K800) {
1063 iga1_fifo_max_depth = K800_IGA1_FIFO_MAX_DEPTH;
1064 iga1_fifo_threshold = K800_IGA1_FIFO_THRESHOLD;
1065 iga1_fifo_high_threshold =
1066 K800_IGA1_FIFO_HIGH_THRESHOLD;
1067 /* If resolution > 1280x1024, expire length = 64, else
1068 expire length = 128 */
1069 if ((hor_active > 1280) && (ver_active > 1024))
1070 iga1_display_queue_expire_num = 16;
1071 else
1072 iga1_display_queue_expire_num =
1073 K800_IGA1_DISPLAY_QUEUE_EXPIRE_NUM;
1074
1075 }
1076
1077 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_PM800) {
1078 iga1_fifo_max_depth = P880_IGA1_FIFO_MAX_DEPTH;
1079 iga1_fifo_threshold = P880_IGA1_FIFO_THRESHOLD;
1080 iga1_fifo_high_threshold =
1081 P880_IGA1_FIFO_HIGH_THRESHOLD;
1082 iga1_display_queue_expire_num =
1083 P880_IGA1_DISPLAY_QUEUE_EXPIRE_NUM;
1084
1085 /* If resolution > 1280x1024, expire length = 64, else
1086 expire length = 128 */
1087 if ((hor_active > 1280) && (ver_active > 1024))
1088 iga1_display_queue_expire_num = 16;
1089 else
1090 iga1_display_queue_expire_num =
1091 P880_IGA1_DISPLAY_QUEUE_EXPIRE_NUM;
1092 }
1093
1094 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CN700) {
1095 iga1_fifo_max_depth = CN700_IGA1_FIFO_MAX_DEPTH;
1096 iga1_fifo_threshold = CN700_IGA1_FIFO_THRESHOLD;
1097 iga1_fifo_high_threshold =
1098 CN700_IGA1_FIFO_HIGH_THRESHOLD;
1099
1100 /* If resolution > 1280x1024, expire length = 64,
1101 else expire length = 128 */
1102 if ((hor_active > 1280) && (ver_active > 1024))
1103 iga1_display_queue_expire_num = 16;
1104 else
1105 iga1_display_queue_expire_num =
1106 CN700_IGA1_DISPLAY_QUEUE_EXPIRE_NUM;
1107 }
1108
1109 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CX700) {
1110 iga1_fifo_max_depth = CX700_IGA1_FIFO_MAX_DEPTH;
1111 iga1_fifo_threshold = CX700_IGA1_FIFO_THRESHOLD;
1112 iga1_fifo_high_threshold =
1113 CX700_IGA1_FIFO_HIGH_THRESHOLD;
1114 iga1_display_queue_expire_num =
1115 CX700_IGA1_DISPLAY_QUEUE_EXPIRE_NUM;
1116 }
1117
1118 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_K8M890) {
1119 iga1_fifo_max_depth = K8M890_IGA1_FIFO_MAX_DEPTH;
1120 iga1_fifo_threshold = K8M890_IGA1_FIFO_THRESHOLD;
1121 iga1_fifo_high_threshold =
1122 K8M890_IGA1_FIFO_HIGH_THRESHOLD;
1123 iga1_display_queue_expire_num =
1124 K8M890_IGA1_DISPLAY_QUEUE_EXPIRE_NUM;
1125 }
1126
1127 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_P4M890) {
1128 iga1_fifo_max_depth = P4M890_IGA1_FIFO_MAX_DEPTH;
1129 iga1_fifo_threshold = P4M890_IGA1_FIFO_THRESHOLD;
1130 iga1_fifo_high_threshold =
1131 P4M890_IGA1_FIFO_HIGH_THRESHOLD;
1132 iga1_display_queue_expire_num =
1133 P4M890_IGA1_DISPLAY_QUEUE_EXPIRE_NUM;
1134 }
1135
1136 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_P4M900) {
1137 iga1_fifo_max_depth = P4M900_IGA1_FIFO_MAX_DEPTH;
1138 iga1_fifo_threshold = P4M900_IGA1_FIFO_THRESHOLD;
1139 iga1_fifo_high_threshold =
1140 P4M900_IGA1_FIFO_HIGH_THRESHOLD;
1141 iga1_display_queue_expire_num =
1142 P4M900_IGA1_DISPLAY_QUEUE_EXPIRE_NUM;
1143 }
1144
1145 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_VX800) {
1146 iga1_fifo_max_depth = VX800_IGA1_FIFO_MAX_DEPTH;
1147 iga1_fifo_threshold = VX800_IGA1_FIFO_THRESHOLD;
1148 iga1_fifo_high_threshold =
1149 VX800_IGA1_FIFO_HIGH_THRESHOLD;
1150 iga1_display_queue_expire_num =
1151 VX800_IGA1_DISPLAY_QUEUE_EXPIRE_NUM;
1152 }
1153
1154 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_VX855) {
1155 iga1_fifo_max_depth = VX855_IGA1_FIFO_MAX_DEPTH;
1156 iga1_fifo_threshold = VX855_IGA1_FIFO_THRESHOLD;
1157 iga1_fifo_high_threshold =
1158 VX855_IGA1_FIFO_HIGH_THRESHOLD;
1159 iga1_display_queue_expire_num =
1160 VX855_IGA1_DISPLAY_QUEUE_EXPIRE_NUM;
1161 }
1162
1163 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_VX900) {
1164 iga1_fifo_max_depth = VX900_IGA1_FIFO_MAX_DEPTH;
1165 iga1_fifo_threshold = VX900_IGA1_FIFO_THRESHOLD;
1166 iga1_fifo_high_threshold =
1167 VX900_IGA1_FIFO_HIGH_THRESHOLD;
1168 iga1_display_queue_expire_num =
1169 VX900_IGA1_DISPLAY_QUEUE_EXPIRE_NUM;
1170 }
1171
1172 /* Set Display FIFO Depath Select */
1173 reg_value = IGA1_FIFO_DEPTH_SELECT_FORMULA(iga1_fifo_max_depth);
1174 viafb_load_reg_num =
1175 display_fifo_depth_reg.iga1_fifo_depth_select_reg.reg_num;
1176 reg = display_fifo_depth_reg.iga1_fifo_depth_select_reg.reg;
1177 viafb_load_reg(reg_value, viafb_load_reg_num, reg, VIASR);
1178
1179 /* Set Display FIFO Threshold Select */
1180 reg_value = IGA1_FIFO_THRESHOLD_FORMULA(iga1_fifo_threshold);
1181 viafb_load_reg_num =
1182 fifo_threshold_select_reg.
1183 iga1_fifo_threshold_select_reg.reg_num;
1184 reg =
1185 fifo_threshold_select_reg.
1186 iga1_fifo_threshold_select_reg.reg;
1187 viafb_load_reg(reg_value, viafb_load_reg_num, reg, VIASR);
1188
1189 /* Set FIFO High Threshold Select */
1190 reg_value =
1191 IGA1_FIFO_HIGH_THRESHOLD_FORMULA(iga1_fifo_high_threshold);
1192 viafb_load_reg_num =
1193 fifo_high_threshold_select_reg.
1194 iga1_fifo_high_threshold_select_reg.reg_num;
1195 reg =
1196 fifo_high_threshold_select_reg.
1197 iga1_fifo_high_threshold_select_reg.reg;
1198 viafb_load_reg(reg_value, viafb_load_reg_num, reg, VIASR);
1199
1200 /* Set Display Queue Expire Num */
1201 reg_value =
1202 IGA1_DISPLAY_QUEUE_EXPIRE_NUM_FORMULA
1203 (iga1_display_queue_expire_num);
1204 viafb_load_reg_num =
1205 display_queue_expire_num_reg.
1206 iga1_display_queue_expire_num_reg.reg_num;
1207 reg =
1208 display_queue_expire_num_reg.
1209 iga1_display_queue_expire_num_reg.reg;
1210 viafb_load_reg(reg_value, viafb_load_reg_num, reg, VIASR);
1211
1212 } else {
1213 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_K800) {
1214 iga2_fifo_max_depth = K800_IGA2_FIFO_MAX_DEPTH;
1215 iga2_fifo_threshold = K800_IGA2_FIFO_THRESHOLD;
1216 iga2_fifo_high_threshold =
1217 K800_IGA2_FIFO_HIGH_THRESHOLD;
1218
1219 /* If resolution > 1280x1024, expire length = 64,
1220 else expire length = 128 */
1221 if ((hor_active > 1280) && (ver_active > 1024))
1222 iga2_display_queue_expire_num = 16;
1223 else
1224 iga2_display_queue_expire_num =
1225 K800_IGA2_DISPLAY_QUEUE_EXPIRE_NUM;
1226 }
1227
1228 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_PM800) {
1229 iga2_fifo_max_depth = P880_IGA2_FIFO_MAX_DEPTH;
1230 iga2_fifo_threshold = P880_IGA2_FIFO_THRESHOLD;
1231 iga2_fifo_high_threshold =
1232 P880_IGA2_FIFO_HIGH_THRESHOLD;
1233
1234 /* If resolution > 1280x1024, expire length = 64,
1235 else expire length = 128 */
1236 if ((hor_active > 1280) && (ver_active > 1024))
1237 iga2_display_queue_expire_num = 16;
1238 else
1239 iga2_display_queue_expire_num =
1240 P880_IGA2_DISPLAY_QUEUE_EXPIRE_NUM;
1241 }
1242
1243 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CN700) {
1244 iga2_fifo_max_depth = CN700_IGA2_FIFO_MAX_DEPTH;
1245 iga2_fifo_threshold = CN700_IGA2_FIFO_THRESHOLD;
1246 iga2_fifo_high_threshold =
1247 CN700_IGA2_FIFO_HIGH_THRESHOLD;
1248
1249 /* If resolution > 1280x1024, expire length = 64,
1250 else expire length = 128 */
1251 if ((hor_active > 1280) && (ver_active > 1024))
1252 iga2_display_queue_expire_num = 16;
1253 else
1254 iga2_display_queue_expire_num =
1255 CN700_IGA2_DISPLAY_QUEUE_EXPIRE_NUM;
1256 }
1257
1258 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CX700) {
1259 iga2_fifo_max_depth = CX700_IGA2_FIFO_MAX_DEPTH;
1260 iga2_fifo_threshold = CX700_IGA2_FIFO_THRESHOLD;
1261 iga2_fifo_high_threshold =
1262 CX700_IGA2_FIFO_HIGH_THRESHOLD;
1263 iga2_display_queue_expire_num =
1264 CX700_IGA2_DISPLAY_QUEUE_EXPIRE_NUM;
1265 }
1266
1267 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_K8M890) {
1268 iga2_fifo_max_depth = K8M890_IGA2_FIFO_MAX_DEPTH;
1269 iga2_fifo_threshold = K8M890_IGA2_FIFO_THRESHOLD;
1270 iga2_fifo_high_threshold =
1271 K8M890_IGA2_FIFO_HIGH_THRESHOLD;
1272 iga2_display_queue_expire_num =
1273 K8M890_IGA2_DISPLAY_QUEUE_EXPIRE_NUM;
1274 }
1275
1276 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_P4M890) {
1277 iga2_fifo_max_depth = P4M890_IGA2_FIFO_MAX_DEPTH;
1278 iga2_fifo_threshold = P4M890_IGA2_FIFO_THRESHOLD;
1279 iga2_fifo_high_threshold =
1280 P4M890_IGA2_FIFO_HIGH_THRESHOLD;
1281 iga2_display_queue_expire_num =
1282 P4M890_IGA2_DISPLAY_QUEUE_EXPIRE_NUM;
1283 }
1284
1285 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_P4M900) {
1286 iga2_fifo_max_depth = P4M900_IGA2_FIFO_MAX_DEPTH;
1287 iga2_fifo_threshold = P4M900_IGA2_FIFO_THRESHOLD;
1288 iga2_fifo_high_threshold =
1289 P4M900_IGA2_FIFO_HIGH_THRESHOLD;
1290 iga2_display_queue_expire_num =
1291 P4M900_IGA2_DISPLAY_QUEUE_EXPIRE_NUM;
1292 }
1293
1294 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_VX800) {
1295 iga2_fifo_max_depth = VX800_IGA2_FIFO_MAX_DEPTH;
1296 iga2_fifo_threshold = VX800_IGA2_FIFO_THRESHOLD;
1297 iga2_fifo_high_threshold =
1298 VX800_IGA2_FIFO_HIGH_THRESHOLD;
1299 iga2_display_queue_expire_num =
1300 VX800_IGA2_DISPLAY_QUEUE_EXPIRE_NUM;
1301 }
1302
1303 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_VX855) {
1304 iga2_fifo_max_depth = VX855_IGA2_FIFO_MAX_DEPTH;
1305 iga2_fifo_threshold = VX855_IGA2_FIFO_THRESHOLD;
1306 iga2_fifo_high_threshold =
1307 VX855_IGA2_FIFO_HIGH_THRESHOLD;
1308 iga2_display_queue_expire_num =
1309 VX855_IGA2_DISPLAY_QUEUE_EXPIRE_NUM;
1310 }
1311
1312 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_VX900) {
1313 iga2_fifo_max_depth = VX900_IGA2_FIFO_MAX_DEPTH;
1314 iga2_fifo_threshold = VX900_IGA2_FIFO_THRESHOLD;
1315 iga2_fifo_high_threshold =
1316 VX900_IGA2_FIFO_HIGH_THRESHOLD;
1317 iga2_display_queue_expire_num =
1318 VX900_IGA2_DISPLAY_QUEUE_EXPIRE_NUM;
1319 }
1320
1321 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_K800) {
1322 /* Set Display FIFO Depath Select */
1323 reg_value =
1324 IGA2_FIFO_DEPTH_SELECT_FORMULA(iga2_fifo_max_depth)
1325 - 1;
1326 /* Patch LCD in IGA2 case */
1327 viafb_load_reg_num =
1328 display_fifo_depth_reg.
1329 iga2_fifo_depth_select_reg.reg_num;
1330 reg =
1331 display_fifo_depth_reg.
1332 iga2_fifo_depth_select_reg.reg;
1333 viafb_load_reg(reg_value,
1334 viafb_load_reg_num, reg, VIACR);
1335 } else {
1336
1337 /* Set Display FIFO Depath Select */
1338 reg_value =
1339 IGA2_FIFO_DEPTH_SELECT_FORMULA(iga2_fifo_max_depth);
1340 viafb_load_reg_num =
1341 display_fifo_depth_reg.
1342 iga2_fifo_depth_select_reg.reg_num;
1343 reg =
1344 display_fifo_depth_reg.
1345 iga2_fifo_depth_select_reg.reg;
1346 viafb_load_reg(reg_value,
1347 viafb_load_reg_num, reg, VIACR);
1348 }
1349
1350 /* Set Display FIFO Threshold Select */
1351 reg_value = IGA2_FIFO_THRESHOLD_FORMULA(iga2_fifo_threshold);
1352 viafb_load_reg_num =
1353 fifo_threshold_select_reg.
1354 iga2_fifo_threshold_select_reg.reg_num;
1355 reg =
1356 fifo_threshold_select_reg.
1357 iga2_fifo_threshold_select_reg.reg;
1358 viafb_load_reg(reg_value, viafb_load_reg_num, reg, VIACR);
1359
1360 /* Set FIFO High Threshold Select */
1361 reg_value =
1362 IGA2_FIFO_HIGH_THRESHOLD_FORMULA(iga2_fifo_high_threshold);
1363 viafb_load_reg_num =
1364 fifo_high_threshold_select_reg.
1365 iga2_fifo_high_threshold_select_reg.reg_num;
1366 reg =
1367 fifo_high_threshold_select_reg.
1368 iga2_fifo_high_threshold_select_reg.reg;
1369 viafb_load_reg(reg_value, viafb_load_reg_num, reg, VIACR);
1370
1371 /* Set Display Queue Expire Num */
1372 reg_value =
1373 IGA2_DISPLAY_QUEUE_EXPIRE_NUM_FORMULA
1374 (iga2_display_queue_expire_num);
1375 viafb_load_reg_num =
1376 display_queue_expire_num_reg.
1377 iga2_display_queue_expire_num_reg.reg_num;
1378 reg =
1379 display_queue_expire_num_reg.
1380 iga2_display_queue_expire_num_reg.reg;
1381 viafb_load_reg(reg_value, viafb_load_reg_num, reg, VIACR);
1382
1383 }
1384
1385 }
1386
1387 static struct via_pll_config get_pll_config(struct pll_limit *limits, int size,
1388 int clk)
1389 {
1390 struct via_pll_config cur, up, down, best = {0, 1, 0};
1391 const u32 f0 = 14318180; /* X1 frequency */
1392 int i, f;
1393
1394 for (i = 0; i < size; i++) {
1395 cur.rshift = limits[i].rshift;
1396 cur.divisor = limits[i].divisor;
1397 cur.multiplier = clk / ((f0 / cur.divisor)>>cur.rshift);
1398 f = abs(get_pll_output_frequency(f0, cur) - clk);
1399 up = down = cur;
1400 up.multiplier++;
1401 down.multiplier--;
1402 if (abs(get_pll_output_frequency(f0, up) - clk) < f)
1403 cur = up;
1404 else if (abs(get_pll_output_frequency(f0, down) - clk) < f)
1405 cur = down;
1406
1407 if (cur.multiplier < limits[i].multiplier_min)
1408 cur.multiplier = limits[i].multiplier_min;
1409 else if (cur.multiplier > limits[i].multiplier_max)
1410 cur.multiplier = limits[i].multiplier_max;
1411
1412 f = abs(get_pll_output_frequency(f0, cur) - clk);
1413 if (f < abs(get_pll_output_frequency(f0, best) - clk))
1414 best = cur;
1415 }
1416
1417 return best;
1418 }
1419
1420 static struct via_pll_config get_best_pll_config(int clk)
1421 {
1422 struct via_pll_config config;
1423
1424 switch (viaparinfo->chip_info->gfx_chip_name) {
1425 case UNICHROME_CLE266:
1426 case UNICHROME_K400:
1427 config = get_pll_config(cle266_pll_limits,
1428 ARRAY_SIZE(cle266_pll_limits), clk);
1429 break;
1430 case UNICHROME_K800:
1431 case UNICHROME_PM800:
1432 case UNICHROME_CN700:
1433 config = get_pll_config(k800_pll_limits,
1434 ARRAY_SIZE(k800_pll_limits), clk);
1435 break;
1436 case UNICHROME_CX700:
1437 case UNICHROME_CN750:
1438 case UNICHROME_K8M890:
1439 case UNICHROME_P4M890:
1440 case UNICHROME_P4M900:
1441 case UNICHROME_VX800:
1442 config = get_pll_config(cx700_pll_limits,
1443 ARRAY_SIZE(cx700_pll_limits), clk);
1444 break;
1445 case UNICHROME_VX855:
1446 case UNICHROME_VX900:
1447 config = get_pll_config(vx855_pll_limits,
1448 ARRAY_SIZE(vx855_pll_limits), clk);
1449 break;
1450 }
1451
1452 return config;
1453 }
1454
1455 /* Set VCLK*/
1456 void viafb_set_vclock(u32 clk, int set_iga)
1457 {
1458 struct via_pll_config config = get_best_pll_config(clk);
1459
1460 if (set_iga == IGA1)
1461 clock.set_primary_pll(config);
1462 if (set_iga == IGA2)
1463 clock.set_secondary_pll(config);
1464
1465 /* Fire! */
1466 via_write_misc_reg_mask(0x0C, 0x0C); /* select external clock */
1467 }
1468
1469 struct via_display_timing var_to_timing(const struct fb_var_screeninfo *var,
1470 u16 cxres, u16 cyres)
1471 {
1472 struct via_display_timing timing;
1473 u16 dx = (var->xres - cxres) / 2, dy = (var->yres - cyres) / 2;
1474
1475 timing.hor_addr = cxres;
1476 timing.hor_sync_start = timing.hor_addr + var->right_margin + dx;
1477 timing.hor_sync_end = timing.hor_sync_start + var->hsync_len;
1478 timing.hor_total = timing.hor_sync_end + var->left_margin + dx;
1479 timing.hor_blank_start = timing.hor_addr + dx;
1480 timing.hor_blank_end = timing.hor_total - dx;
1481 timing.ver_addr = cyres;
1482 timing.ver_sync_start = timing.ver_addr + var->lower_margin + dy;
1483 timing.ver_sync_end = timing.ver_sync_start + var->vsync_len;
1484 timing.ver_total = timing.ver_sync_end + var->upper_margin + dy;
1485 timing.ver_blank_start = timing.ver_addr + dy;
1486 timing.ver_blank_end = timing.ver_total - dy;
1487 return timing;
1488 }
1489
1490 void viafb_fill_crtc_timing(const struct fb_var_screeninfo *var,
1491 u16 cxres, u16 cyres, int iga)
1492 {
1493 struct via_display_timing crt_reg = var_to_timing(var,
1494 cxres ? cxres : var->xres, cyres ? cyres : var->yres);
1495
1496 if (iga == IGA1)
1497 via_set_primary_timing(&crt_reg);
1498 else if (iga == IGA2)
1499 via_set_secondary_timing(&crt_reg);
1500
1501 viafb_load_fetch_count_reg(var->xres, var->bits_per_pixel / 8, iga);
1502 if (viaparinfo->chip_info->gfx_chip_name != UNICHROME_CLE266
1503 && viaparinfo->chip_info->gfx_chip_name != UNICHROME_K400)
1504 viafb_load_FIFO_reg(iga, var->xres, var->yres);
1505
1506 viafb_set_vclock(PICOS2KHZ(var->pixclock) * 1000, iga);
1507 }
1508
1509 void viafb_init_chip_info(int chip_type)
1510 {
1511 via_clock_init(&clock, chip_type);
1512 init_gfx_chip_info(chip_type);
1513 init_tmds_chip_info();
1514 init_lvds_chip_info();
1515
1516 /*Set IGA path for each device */
1517 viafb_set_iga_path();
1518
1519 viaparinfo->lvds_setting_info->display_method = viafb_lcd_dsp_method;
1520 viaparinfo->lvds_setting_info->lcd_mode = viafb_lcd_mode;
1521 viaparinfo->lvds_setting_info2->display_method =
1522 viaparinfo->lvds_setting_info->display_method;
1523 viaparinfo->lvds_setting_info2->lcd_mode =
1524 viaparinfo->lvds_setting_info->lcd_mode;
1525 }
1526
1527 void viafb_update_device_setting(int hres, int vres, int bpp, int flag)
1528 {
1529 if (flag == 0) {
1530 viaparinfo->tmds_setting_info->h_active = hres;
1531 viaparinfo->tmds_setting_info->v_active = vres;
1532 } else {
1533
1534 if (viaparinfo->tmds_setting_info->iga_path == IGA2) {
1535 viaparinfo->tmds_setting_info->h_active = hres;
1536 viaparinfo->tmds_setting_info->v_active = vres;
1537 }
1538
1539 }
1540 }
1541
1542 static void init_gfx_chip_info(int chip_type)
1543 {
1544 u8 tmp;
1545
1546 viaparinfo->chip_info->gfx_chip_name = chip_type;
1547
1548 /* Check revision of CLE266 Chip */
1549 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266) {
1550 /* CR4F only define in CLE266.CX chip */
1551 tmp = viafb_read_reg(VIACR, CR4F);
1552 viafb_write_reg(CR4F, VIACR, 0x55);
1553 if (viafb_read_reg(VIACR, CR4F) != 0x55)
1554 viaparinfo->chip_info->gfx_chip_revision =
1555 CLE266_REVISION_AX;
1556 else
1557 viaparinfo->chip_info->gfx_chip_revision =
1558 CLE266_REVISION_CX;
1559 /* restore orignal CR4F value */
1560 viafb_write_reg(CR4F, VIACR, tmp);
1561 }
1562
1563 if (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CX700) {
1564 tmp = viafb_read_reg(VIASR, SR43);
1565 DEBUG_MSG(KERN_INFO "SR43:%X\n", tmp);
1566 if (tmp & 0x02) {
1567 viaparinfo->chip_info->gfx_chip_revision =
1568 CX700_REVISION_700M2;
1569 } else if (tmp & 0x40) {
1570 viaparinfo->chip_info->gfx_chip_revision =
1571 CX700_REVISION_700M;
1572 } else {
1573 viaparinfo->chip_info->gfx_chip_revision =
1574 CX700_REVISION_700;
1575 }
1576 }
1577
1578 /* Determine which 2D engine we have */
1579 switch (viaparinfo->chip_info->gfx_chip_name) {
1580 case UNICHROME_VX800:
1581 case UNICHROME_VX855:
1582 case UNICHROME_VX900:
1583 viaparinfo->chip_info->twod_engine = VIA_2D_ENG_M1;
1584 break;
1585 case UNICHROME_K8M890:
1586 case UNICHROME_P4M900:
1587 viaparinfo->chip_info->twod_engine = VIA_2D_ENG_H5;
1588 break;
1589 default:
1590 viaparinfo->chip_info->twod_engine = VIA_2D_ENG_H2;
1591 break;
1592 }
1593 }
1594
1595 static void init_tmds_chip_info(void)
1596 {
1597 viafb_tmds_trasmitter_identify();
1598
1599 if (INTERFACE_NONE == viaparinfo->chip_info->tmds_chip_info.
1600 output_interface) {
1601 switch (viaparinfo->chip_info->gfx_chip_name) {
1602 case UNICHROME_CX700:
1603 {
1604 /* we should check support by hardware layout.*/
1605 if ((viafb_display_hardware_layout ==
1606 HW_LAYOUT_DVI_ONLY)
1607 || (viafb_display_hardware_layout ==
1608 HW_LAYOUT_LCD_DVI)) {
1609 viaparinfo->chip_info->tmds_chip_info.
1610 output_interface = INTERFACE_TMDS;
1611 } else {
1612 viaparinfo->chip_info->tmds_chip_info.
1613 output_interface =
1614 INTERFACE_NONE;
1615 }
1616 break;
1617 }
1618 case UNICHROME_K8M890:
1619 case UNICHROME_P4M900:
1620 case UNICHROME_P4M890:
1621 /* TMDS on PCIE, we set DFPLOW as default. */
1622 viaparinfo->chip_info->tmds_chip_info.output_interface =
1623 INTERFACE_DFP_LOW;
1624 break;
1625 default:
1626 {
1627 /* set DVP1 default for DVI */
1628 viaparinfo->chip_info->tmds_chip_info
1629 .output_interface = INTERFACE_DVP1;
1630 }
1631 }
1632 }
1633
1634 DEBUG_MSG(KERN_INFO "TMDS Chip = %d\n",
1635 viaparinfo->chip_info->tmds_chip_info.tmds_chip_name);
1636 viafb_init_dvi_size(&viaparinfo->shared->chip_info.tmds_chip_info,
1637 &viaparinfo->shared->tmds_setting_info);
1638 }
1639
1640 static void init_lvds_chip_info(void)
1641 {
1642 viafb_lvds_trasmitter_identify();
1643 viafb_init_lcd_size();
1644 viafb_init_lvds_output_interface(&viaparinfo->chip_info->lvds_chip_info,
1645 viaparinfo->lvds_setting_info);
1646 if (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1647 viafb_init_lvds_output_interface(&viaparinfo->chip_info->
1648 lvds_chip_info2, viaparinfo->lvds_setting_info2);
1649 }
1650 /*If CX700,two singel LCD, we need to reassign
1651 LCD interface to different LVDS port */
1652 if ((UNICHROME_CX700 == viaparinfo->chip_info->gfx_chip_name)
1653 && (HW_LAYOUT_LCD1_LCD2 == viafb_display_hardware_layout)) {
1654 if ((INTEGRATED_LVDS == viaparinfo->chip_info->lvds_chip_info.
1655 lvds_chip_name) && (INTEGRATED_LVDS ==
1656 viaparinfo->chip_info->
1657 lvds_chip_info2.lvds_chip_name)) {
1658 viaparinfo->chip_info->lvds_chip_info.output_interface =
1659 INTERFACE_LVDS0;
1660 viaparinfo->chip_info->lvds_chip_info2.
1661 output_interface =
1662 INTERFACE_LVDS1;
1663 }
1664 }
1665
1666 DEBUG_MSG(KERN_INFO "LVDS Chip = %d\n",
1667 viaparinfo->chip_info->lvds_chip_info.lvds_chip_name);
1668 DEBUG_MSG(KERN_INFO "LVDS1 output_interface = %d\n",
1669 viaparinfo->chip_info->lvds_chip_info.output_interface);
1670 DEBUG_MSG(KERN_INFO "LVDS2 output_interface = %d\n",
1671 viaparinfo->chip_info->lvds_chip_info.output_interface);
1672 }
1673
1674 void viafb_init_dac(int set_iga)
1675 {
1676 int i;
1677 u8 tmp;
1678
1679 if (set_iga == IGA1) {
1680 /* access Primary Display's LUT */
1681 viafb_write_reg_mask(SR1A, VIASR, 0x00, BIT0);
1682 /* turn off LCK */
1683 viafb_write_reg_mask(SR1B, VIASR, 0x00, BIT7 + BIT6);
1684 for (i = 0; i < 256; i++) {
1685 write_dac_reg(i, palLUT_table[i].red,
1686 palLUT_table[i].green,
1687 palLUT_table[i].blue);
1688 }
1689 /* turn on LCK */
1690 viafb_write_reg_mask(SR1B, VIASR, 0xC0, BIT7 + BIT6);
1691 } else {
1692 tmp = viafb_read_reg(VIACR, CR6A);
1693 /* access Secondary Display's LUT */
1694 viafb_write_reg_mask(CR6A, VIACR, 0x40, BIT6);
1695 viafb_write_reg_mask(SR1A, VIASR, 0x01, BIT0);
1696 for (i = 0; i < 256; i++) {
1697 write_dac_reg(i, palLUT_table[i].red,
1698 palLUT_table[i].green,
1699 palLUT_table[i].blue);
1700 }
1701 /* set IGA1 DAC for default */
1702 viafb_write_reg_mask(SR1A, VIASR, 0x00, BIT0);
1703 viafb_write_reg(CR6A, VIACR, tmp);
1704 }
1705 }
1706
1707 static void device_screen_off(void)
1708 {
1709 /* turn off CRT screen (IGA1) */
1710 viafb_write_reg_mask(SR01, VIASR, 0x20, BIT5);
1711 }
1712
1713 static void device_screen_on(void)
1714 {
1715 /* turn on CRT screen (IGA1) */
1716 viafb_write_reg_mask(SR01, VIASR, 0x00, BIT5);
1717 }
1718
1719 static void set_display_channel(void)
1720 {
1721 /*If viafb_LCD2_ON, on cx700, internal lvds's information
1722 is keeped on lvds_setting_info2 */
1723 if (viafb_LCD2_ON &&
1724 viaparinfo->lvds_setting_info2->device_lcd_dualedge) {
1725 /* For dual channel LCD: */
1726 /* Set to Dual LVDS channel. */
1727 viafb_write_reg_mask(CRD2, VIACR, 0x20, BIT4 + BIT5);
1728 } else if (viafb_LCD_ON && viafb_DVI_ON) {
1729 /* For LCD+DFP: */
1730 /* Set to LVDS1 + TMDS channel. */
1731 viafb_write_reg_mask(CRD2, VIACR, 0x10, BIT4 + BIT5);
1732 } else if (viafb_DVI_ON) {
1733 /* Set to single TMDS channel. */
1734 viafb_write_reg_mask(CRD2, VIACR, 0x30, BIT4 + BIT5);
1735 } else if (viafb_LCD_ON) {
1736 if (viaparinfo->lvds_setting_info->device_lcd_dualedge) {
1737 /* For dual channel LCD: */
1738 /* Set to Dual LVDS channel. */
1739 viafb_write_reg_mask(CRD2, VIACR, 0x20, BIT4 + BIT5);
1740 } else {
1741 /* Set to LVDS0 + LVDS1 channel. */
1742 viafb_write_reg_mask(CRD2, VIACR, 0x00, BIT4 + BIT5);
1743 }
1744 }
1745 }
1746
1747 static u8 get_sync(struct fb_var_screeninfo *var)
1748 {
1749 u8 polarity = 0;
1750
1751 if (!(var->sync & FB_SYNC_HOR_HIGH_ACT))
1752 polarity |= VIA_HSYNC_NEGATIVE;
1753 if (!(var->sync & FB_SYNC_VERT_HIGH_ACT))
1754 polarity |= VIA_VSYNC_NEGATIVE;
1755 return polarity;
1756 }
1757
1758 static void hw_init(void)
1759 {
1760 int i;
1761
1762 inb(VIAStatus);
1763 outb(0x00, VIAAR);
1764
1765 /* Write Common Setting for Video Mode */
1766 viafb_write_regx(common_vga, ARRAY_SIZE(common_vga));
1767 switch (viaparinfo->chip_info->gfx_chip_name) {
1768 case UNICHROME_CLE266:
1769 viafb_write_regx(CLE266_ModeXregs, NUM_TOTAL_CLE266_ModeXregs);
1770 break;
1771
1772 case UNICHROME_K400:
1773 viafb_write_regx(KM400_ModeXregs, NUM_TOTAL_KM400_ModeXregs);
1774 break;
1775
1776 case UNICHROME_K800:
1777 case UNICHROME_PM800:
1778 viafb_write_regx(CN400_ModeXregs, NUM_TOTAL_CN400_ModeXregs);
1779 break;
1780
1781 case UNICHROME_CN700:
1782 case UNICHROME_K8M890:
1783 case UNICHROME_P4M890:
1784 case UNICHROME_P4M900:
1785 viafb_write_regx(CN700_ModeXregs, NUM_TOTAL_CN700_ModeXregs);
1786 break;
1787
1788 case UNICHROME_CX700:
1789 case UNICHROME_VX800:
1790 viafb_write_regx(CX700_ModeXregs, NUM_TOTAL_CX700_ModeXregs);
1791 break;
1792
1793 case UNICHROME_VX855:
1794 case UNICHROME_VX900:
1795 viafb_write_regx(VX855_ModeXregs, NUM_TOTAL_VX855_ModeXregs);
1796 break;
1797 }
1798
1799 /* magic required on VX900 for correct modesetting on IGA1 */
1800 via_write_reg_mask(VIACR, 0x45, 0x00, 0x01);
1801
1802 /* probably this should go to the scaling code one day */
1803 via_write_reg_mask(VIACR, 0xFD, 0, 0x80); /* VX900 hw scale on IGA2 */
1804 viafb_write_regx(scaling_parameters, ARRAY_SIZE(scaling_parameters));
1805
1806 /* Fill VPIT Parameters */
1807 /* Write Misc Register */
1808 outb(VPIT.Misc, VIA_MISC_REG_WRITE);
1809
1810 /* Write Sequencer */
1811 for (i = 1; i <= StdSR; i++)
1812 via_write_reg(VIASR, i, VPIT.SR[i - 1]);
1813
1814 viafb_write_reg_mask(0x15, VIASR, 0xA2, 0xA2);
1815
1816 /* Write Graphic Controller */
1817 for (i = 0; i < StdGR; i++)
1818 via_write_reg(VIAGR, i, VPIT.GR[i]);
1819
1820 /* Write Attribute Controller */
1821 for (i = 0; i < StdAR; i++) {
1822 inb(VIAStatus);
1823 outb(i, VIAAR);
1824 outb(VPIT.AR[i], VIAAR);
1825 }
1826
1827 inb(VIAStatus);
1828 outb(0x20, VIAAR);
1829
1830 load_fix_bit_crtc_reg();
1831 }
1832
1833 int viafb_setmode(void)
1834 {
1835 int j, cxres = 0, cyres = 0;
1836 int port;
1837 u32 devices = viaparinfo->shared->iga1_devices
1838 | viaparinfo->shared->iga2_devices;
1839 u8 value, index, mask;
1840 struct fb_var_screeninfo var2;
1841
1842 device_screen_off();
1843 device_off();
1844 via_set_state(devices, VIA_STATE_OFF);
1845
1846 hw_init();
1847
1848 /* Update Patch Register */
1849
1850 if ((viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266
1851 || viaparinfo->chip_info->gfx_chip_name == UNICHROME_K400)
1852 && viafbinfo->var.xres == 1024 && viafbinfo->var.yres == 768) {
1853 for (j = 0; j < res_patch_table[0].table_length; j++) {
1854 index = res_patch_table[0].io_reg_table[j].index;
1855 port = res_patch_table[0].io_reg_table[j].port;
1856 value = res_patch_table[0].io_reg_table[j].value;
1857 mask = res_patch_table[0].io_reg_table[j].mask;
1858 viafb_write_reg_mask(index, port, value, mask);
1859 }
1860 }
1861
1862 via_set_primary_pitch(viafbinfo->fix.line_length);
1863 via_set_secondary_pitch(viafb_dual_fb ? viafbinfo1->fix.line_length
1864 : viafbinfo->fix.line_length);
1865 via_set_primary_color_depth(viaparinfo->depth);
1866 via_set_secondary_color_depth(viafb_dual_fb ? viaparinfo1->depth
1867 : viaparinfo->depth);
1868 via_set_source(viaparinfo->shared->iga1_devices, IGA1);
1869 via_set_source(viaparinfo->shared->iga2_devices, IGA2);
1870 if (viaparinfo->shared->iga2_devices)
1871 enable_second_display_channel();
1872 else
1873 disable_second_display_channel();
1874
1875 /* Update Refresh Rate Setting */
1876
1877 /* Clear On Screen */
1878
1879 if (viafb_dual_fb) {
1880 var2 = viafbinfo1->var;
1881 } else if (viafb_SAMM_ON) {
1882 viafb_fill_var_timing_info(&var2, viafb_get_best_mode(
1883 viafb_second_xres, viafb_second_yres, viafb_refresh1));
1884 cxres = viafbinfo->var.xres;
1885 cyres = viafbinfo->var.yres;
1886 var2.bits_per_pixel = viafbinfo->var.bits_per_pixel;
1887 }
1888
1889 /* CRT set mode */
1890 if (viafb_CRT_ON) {
1891 if (viaparinfo->shared->iga2_devices & VIA_CRT
1892 && viafb_SAMM_ON)
1893 viafb_fill_crtc_timing(&var2, cxres, cyres, IGA2);
1894 else
1895 viafb_fill_crtc_timing(&viafbinfo->var, 0, 0,
1896 (viaparinfo->shared->iga1_devices & VIA_CRT)
1897 ? IGA1 : IGA2);
1898
1899 /* Patch if set_hres is not 8 alignment (1366) to viafb_setmode
1900 to 8 alignment (1368),there is several pixels (2 pixels)
1901 on right side of screen. */
1902 if (viafbinfo->var.xres % 8) {
1903 viafb_unlock_crt();
1904 viafb_write_reg(CR02, VIACR,
1905 viafb_read_reg(VIACR, CR02) - 1);
1906 viafb_lock_crt();
1907 }
1908 }
1909
1910 if (viafb_DVI_ON) {
1911 if (viaparinfo->shared->tmds_setting_info.iga_path == IGA2
1912 && viafb_SAMM_ON)
1913 viafb_dvi_set_mode(&var2, cxres, cyres, IGA2);
1914 else
1915 viafb_dvi_set_mode(&viafbinfo->var, 0, 0,
1916 viaparinfo->tmds_setting_info->iga_path);
1917 }
1918
1919 if (viafb_LCD_ON) {
1920 if (viafb_SAMM_ON &&
1921 (viaparinfo->lvds_setting_info->iga_path == IGA2)) {
1922 viafb_lcd_set_mode(&var2, cxres, cyres,
1923 viaparinfo->lvds_setting_info,
1924 &viaparinfo->chip_info->lvds_chip_info);
1925 } else {
1926 /* IGA1 doesn't have LCD scaling, so set it center. */
1927 if (viaparinfo->lvds_setting_info->iga_path == IGA1) {
1928 viaparinfo->lvds_setting_info->display_method =
1929 LCD_CENTERING;
1930 }
1931 viafb_lcd_set_mode(&viafbinfo->var, 0, 0,
1932 viaparinfo->lvds_setting_info,
1933 &viaparinfo->chip_info->lvds_chip_info);
1934 }
1935 }
1936 if (viafb_LCD2_ON) {
1937 if (viafb_SAMM_ON &&
1938 (viaparinfo->lvds_setting_info2->iga_path == IGA2)) {
1939 viafb_lcd_set_mode(&var2, cxres, cyres,
1940 viaparinfo->lvds_setting_info2,
1941 &viaparinfo->chip_info->lvds_chip_info2);
1942 } else {
1943 /* IGA1 doesn't have LCD scaling, so set it center. */
1944 if (viaparinfo->lvds_setting_info2->iga_path == IGA1) {
1945 viaparinfo->lvds_setting_info2->display_method =
1946 LCD_CENTERING;
1947 }
1948 viafb_lcd_set_mode(&viafbinfo->var, 0, 0,
1949 viaparinfo->lvds_setting_info2,
1950 &viaparinfo->chip_info->lvds_chip_info2);
1951 }
1952 }
1953
1954 if ((viaparinfo->chip_info->gfx_chip_name == UNICHROME_CX700)
1955 && (viafb_LCD_ON || viafb_DVI_ON))
1956 set_display_channel();
1957
1958 /* If set mode normally, save resolution information for hot-plug . */
1959 if (!viafb_hotplug) {
1960 viafb_hotplug_Xres = viafbinfo->var.xres;
1961 viafb_hotplug_Yres = viafbinfo->var.yres;
1962 viafb_hotplug_bpp = viafbinfo->var.bits_per_pixel;
1963 viafb_hotplug_refresh = viafb_refresh;
1964
1965 if (viafb_DVI_ON)
1966 viafb_DeviceStatus = DVI_Device;
1967 else
1968 viafb_DeviceStatus = CRT_Device;
1969 }
1970 device_on();
1971 if (!viafb_SAMM_ON)
1972 via_set_sync_polarity(devices, get_sync(&viafbinfo->var));
1973 else {
1974 via_set_sync_polarity(viaparinfo->shared->iga1_devices,
1975 get_sync(&viafbinfo->var));
1976 via_set_sync_polarity(viaparinfo->shared->iga2_devices,
1977 get_sync(&var2));
1978 }
1979
1980 clock.set_engine_pll_state(VIA_STATE_ON);
1981 clock.set_primary_clock_source(VIA_CLKSRC_X1, true);
1982 clock.set_secondary_clock_source(VIA_CLKSRC_X1, true);
1983
1984 #ifdef CONFIG_FB_VIA_X_COMPATIBILITY
1985 clock.set_primary_pll_state(VIA_STATE_ON);
1986 clock.set_primary_clock_state(VIA_STATE_ON);
1987 clock.set_secondary_pll_state(VIA_STATE_ON);
1988 clock.set_secondary_clock_state(VIA_STATE_ON);
1989 #else
1990 if (viaparinfo->shared->iga1_devices) {
1991 clock.set_primary_pll_state(VIA_STATE_ON);
1992 clock.set_primary_clock_state(VIA_STATE_ON);
1993 } else {
1994 clock.set_primary_pll_state(VIA_STATE_OFF);
1995 clock.set_primary_clock_state(VIA_STATE_OFF);
1996 }
1997
1998 if (viaparinfo->shared->iga2_devices) {
1999 clock.set_secondary_pll_state(VIA_STATE_ON);
2000 clock.set_secondary_clock_state(VIA_STATE_ON);
2001 } else {
2002 clock.set_secondary_pll_state(VIA_STATE_OFF);
2003 clock.set_secondary_clock_state(VIA_STATE_OFF);
2004 }
2005 #endif /*CONFIG_FB_VIA_X_COMPATIBILITY*/
2006
2007 via_set_state(devices, VIA_STATE_ON);
2008 device_screen_on();
2009 return 1;
2010 }
2011
2012 int viafb_get_refresh(int hres, int vres, u32 long_refresh)
2013 {
2014 const struct fb_videomode *best;
2015
2016 best = viafb_get_best_mode(hres, vres, long_refresh);
2017 if (!best)
2018 return 60;
2019
2020 if (abs(best->refresh - long_refresh) > 3) {
2021 if (hres == 1200 && vres == 900)
2022 return 49; /* OLPC DCON only supports 50 Hz */
2023 else
2024 return 60;
2025 }
2026
2027 return best->refresh;
2028 }
2029
2030 static void device_off(void)
2031 {
2032 viafb_dvi_disable();
2033 viafb_lcd_disable();
2034 }
2035
2036 static void device_on(void)
2037 {
2038 if (viafb_DVI_ON == 1)
2039 viafb_dvi_enable();
2040 if (viafb_LCD_ON == 1)
2041 viafb_lcd_enable();
2042 }
2043
2044 static void enable_second_display_channel(void)
2045 {
2046 /* to enable second display channel. */
2047 viafb_write_reg_mask(CR6A, VIACR, 0x00, BIT6);
2048 viafb_write_reg_mask(CR6A, VIACR, BIT7, BIT7);
2049 viafb_write_reg_mask(CR6A, VIACR, BIT6, BIT6);
2050 }
2051
2052 static void disable_second_display_channel(void)
2053 {
2054 /* to disable second display channel. */
2055 viafb_write_reg_mask(CR6A, VIACR, 0x00, BIT6);
2056 viafb_write_reg_mask(CR6A, VIACR, 0x00, BIT7);
2057 viafb_write_reg_mask(CR6A, VIACR, BIT6, BIT6);
2058 }
2059
2060 void viafb_set_dpa_gfx(int output_interface, struct GFX_DPA_SETTING\
2061 *p_gfx_dpa_setting)
2062 {
2063 switch (output_interface) {
2064 case INTERFACE_DVP0:
2065 {
2066 /* DVP0 Clock Polarity and Adjust: */
2067 viafb_write_reg_mask(CR96, VIACR,
2068 p_gfx_dpa_setting->DVP0, 0x0F);
2069
2070 /* DVP0 Clock and Data Pads Driving: */
2071 viafb_write_reg_mask(SR1E, VIASR,
2072 p_gfx_dpa_setting->DVP0ClockDri_S, BIT2);
2073 viafb_write_reg_mask(SR2A, VIASR,
2074 p_gfx_dpa_setting->DVP0ClockDri_S1,
2075 BIT4);
2076 viafb_write_reg_mask(SR1B, VIASR,
2077 p_gfx_dpa_setting->DVP0DataDri_S, BIT1);
2078 viafb_write_reg_mask(SR2A, VIASR,
2079 p_gfx_dpa_setting->DVP0DataDri_S1, BIT5);
2080 break;
2081 }
2082
2083 case INTERFACE_DVP1:
2084 {
2085 /* DVP1 Clock Polarity and Adjust: */
2086 viafb_write_reg_mask(CR9B, VIACR,
2087 p_gfx_dpa_setting->DVP1, 0x0F);
2088
2089 /* DVP1 Clock and Data Pads Driving: */
2090 viafb_write_reg_mask(SR65, VIASR,
2091 p_gfx_dpa_setting->DVP1Driving, 0x0F);
2092 break;
2093 }
2094
2095 case INTERFACE_DFP_HIGH:
2096 {
2097 viafb_write_reg_mask(CR97, VIACR,
2098 p_gfx_dpa_setting->DFPHigh, 0x0F);
2099 break;
2100 }
2101
2102 case INTERFACE_DFP_LOW:
2103 {
2104 viafb_write_reg_mask(CR99, VIACR,
2105 p_gfx_dpa_setting->DFPLow, 0x0F);
2106 break;
2107 }
2108
2109 case INTERFACE_DFP:
2110 {
2111 viafb_write_reg_mask(CR97, VIACR,
2112 p_gfx_dpa_setting->DFPHigh, 0x0F);
2113 viafb_write_reg_mask(CR99, VIACR,
2114 p_gfx_dpa_setting->DFPLow, 0x0F);
2115 break;
2116 }
2117 }
2118 }
2119
2120 void viafb_fill_var_timing_info(struct fb_var_screeninfo *var,
2121 const struct fb_videomode *mode)
2122 {
2123 var->pixclock = mode->pixclock;
2124 var->xres = mode->xres;
2125 var->yres = mode->yres;
2126 var->left_margin = mode->left_margin;
2127 var->right_margin = mode->right_margin;
2128 var->hsync_len = mode->hsync_len;
2129 var->upper_margin = mode->upper_margin;
2130 var->lower_margin = mode->lower_margin;
2131 var->vsync_len = mode->vsync_len;
2132 var->sync = mode->sync;
2133 }
Linux with added FPC-III support