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OMAP: DSS2: fix irq-stats compilation
[linux/fpc-iii.git] / drivers / video / omap2 / dss / dispc.c
blob7781c65bbeba670d676422f1f2c3e607a8f3b2b7
1 /*
2 * linux/drivers/video/omap2/dss/dispc.c
3 *
4 * Copyright (C) 2009 Nokia Corporation
5 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
6 *
7 * Some code and ideas taken from drivers/video/omap/ driver
8 * by Imre Deak.
9 *
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License version 2 as published by
12 * the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 * more details.
18 *
19 * You should have received a copy of the GNU General Public License along with
20 * this program. If not, see <http://www.gnu.org/licenses/>.
21 */
22
23 #define DSS_SUBSYS_NAME "DISPC"
24
25 #include <linux/kernel.h>
26 #include <linux/dma-mapping.h>
27 #include <linux/vmalloc.h>
28 #include <linux/clk.h>
29 #include <linux/io.h>
30 #include <linux/jiffies.h>
31 #include <linux/seq_file.h>
32 #include <linux/delay.h>
33 #include <linux/workqueue.h>
34
35 #include <plat/sram.h>
36 #include <plat/clock.h>
37
38 #include <plat/display.h>
39
40 #include "dss.h"
41
42 /* DISPC */
43 #define DISPC_BASE 0x48050400
44
45 #define DISPC_SZ_REGS SZ_1K
46
47 struct dispc_reg { u16 idx; };
48
49 #define DISPC_REG(idx) ((const struct dispc_reg) { idx })
50
51 /* DISPC common */
52 #define DISPC_REVISION DISPC_REG(0x0000)
53 #define DISPC_SYSCONFIG DISPC_REG(0x0010)
54 #define DISPC_SYSSTATUS DISPC_REG(0x0014)
55 #define DISPC_IRQSTATUS DISPC_REG(0x0018)
56 #define DISPC_IRQENABLE DISPC_REG(0x001C)
57 #define DISPC_CONTROL DISPC_REG(0x0040)
58 #define DISPC_CONFIG DISPC_REG(0x0044)
59 #define DISPC_CAPABLE DISPC_REG(0x0048)
60 #define DISPC_DEFAULT_COLOR0 DISPC_REG(0x004C)
61 #define DISPC_DEFAULT_COLOR1 DISPC_REG(0x0050)
62 #define DISPC_TRANS_COLOR0 DISPC_REG(0x0054)
63 #define DISPC_TRANS_COLOR1 DISPC_REG(0x0058)
64 #define DISPC_LINE_STATUS DISPC_REG(0x005C)
65 #define DISPC_LINE_NUMBER DISPC_REG(0x0060)
66 #define DISPC_TIMING_H DISPC_REG(0x0064)
67 #define DISPC_TIMING_V DISPC_REG(0x0068)
68 #define DISPC_POL_FREQ DISPC_REG(0x006C)
69 #define DISPC_DIVISOR DISPC_REG(0x0070)
70 #define DISPC_GLOBAL_ALPHA DISPC_REG(0x0074)
71 #define DISPC_SIZE_DIG DISPC_REG(0x0078)
72 #define DISPC_SIZE_LCD DISPC_REG(0x007C)
73
74 /* DISPC GFX plane */
75 #define DISPC_GFX_BA0 DISPC_REG(0x0080)
76 #define DISPC_GFX_BA1 DISPC_REG(0x0084)
77 #define DISPC_GFX_POSITION DISPC_REG(0x0088)
78 #define DISPC_GFX_SIZE DISPC_REG(0x008C)
79 #define DISPC_GFX_ATTRIBUTES DISPC_REG(0x00A0)
80 #define DISPC_GFX_FIFO_THRESHOLD DISPC_REG(0x00A4)
81 #define DISPC_GFX_FIFO_SIZE_STATUS DISPC_REG(0x00A8)
82 #define DISPC_GFX_ROW_INC DISPC_REG(0x00AC)
83 #define DISPC_GFX_PIXEL_INC DISPC_REG(0x00B0)
84 #define DISPC_GFX_WINDOW_SKIP DISPC_REG(0x00B4)
85 #define DISPC_GFX_TABLE_BA DISPC_REG(0x00B8)
86
87 #define DISPC_DATA_CYCLE1 DISPC_REG(0x01D4)
88 #define DISPC_DATA_CYCLE2 DISPC_REG(0x01D8)
89 #define DISPC_DATA_CYCLE3 DISPC_REG(0x01DC)
90
91 #define DISPC_CPR_COEF_R DISPC_REG(0x0220)
92 #define DISPC_CPR_COEF_G DISPC_REG(0x0224)
93 #define DISPC_CPR_COEF_B DISPC_REG(0x0228)
94
95 #define DISPC_GFX_PRELOAD DISPC_REG(0x022C)
96
97 /* DISPC Video plane, n = 0 for VID1 and n = 1 for VID2 */
98 #define DISPC_VID_REG(n, idx) DISPC_REG(0x00BC + (n)*0x90 + idx)
99
100 #define DISPC_VID_BA0(n) DISPC_VID_REG(n, 0x0000)
101 #define DISPC_VID_BA1(n) DISPC_VID_REG(n, 0x0004)
102 #define DISPC_VID_POSITION(n) DISPC_VID_REG(n, 0x0008)
103 #define DISPC_VID_SIZE(n) DISPC_VID_REG(n, 0x000C)
104 #define DISPC_VID_ATTRIBUTES(n) DISPC_VID_REG(n, 0x0010)
105 #define DISPC_VID_FIFO_THRESHOLD(n) DISPC_VID_REG(n, 0x0014)
106 #define DISPC_VID_FIFO_SIZE_STATUS(n) DISPC_VID_REG(n, 0x0018)
107 #define DISPC_VID_ROW_INC(n) DISPC_VID_REG(n, 0x001C)
108 #define DISPC_VID_PIXEL_INC(n) DISPC_VID_REG(n, 0x0020)
109 #define DISPC_VID_FIR(n) DISPC_VID_REG(n, 0x0024)
110 #define DISPC_VID_PICTURE_SIZE(n) DISPC_VID_REG(n, 0x0028)
111 #define DISPC_VID_ACCU0(n) DISPC_VID_REG(n, 0x002C)
112 #define DISPC_VID_ACCU1(n) DISPC_VID_REG(n, 0x0030)
113
114 /* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */
115 #define DISPC_VID_FIR_COEF_H(n, i) DISPC_REG(0x00F0 + (n)*0x90 + (i)*0x8)
116 /* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */
117 #define DISPC_VID_FIR_COEF_HV(n, i) DISPC_REG(0x00F4 + (n)*0x90 + (i)*0x8)
118 /* coef index i = {0, 1, 2, 3, 4} */
119 #define DISPC_VID_CONV_COEF(n, i) DISPC_REG(0x0130 + (n)*0x90 + (i)*0x4)
120 /* coef index i = {0, 1, 2, 3, 4, 5, 6, 7} */
121 #define DISPC_VID_FIR_COEF_V(n, i) DISPC_REG(0x01E0 + (n)*0x20 + (i)*0x4)
122
123 #define DISPC_VID_PRELOAD(n) DISPC_REG(0x230 + (n)*0x04)
124
125
126 #define DISPC_IRQ_MASK_ERROR (DISPC_IRQ_GFX_FIFO_UNDERFLOW | \
127 DISPC_IRQ_OCP_ERR | \
128 DISPC_IRQ_VID1_FIFO_UNDERFLOW | \
129 DISPC_IRQ_VID2_FIFO_UNDERFLOW | \
130 DISPC_IRQ_SYNC_LOST | \
131 DISPC_IRQ_SYNC_LOST_DIGIT)
132
133 #define DISPC_MAX_NR_ISRS 8
134
135 struct omap_dispc_isr_data {
136 omap_dispc_isr_t isr;
137 void *arg;
138 u32 mask;
139 };
140
141 #define REG_GET(idx, start, end) \
142 FLD_GET(dispc_read_reg(idx), start, end)
143
144 #define REG_FLD_MOD(idx, val, start, end) \
145 dispc_write_reg(idx, FLD_MOD(dispc_read_reg(idx), val, start, end))
146
147 static const struct dispc_reg dispc_reg_att[] = { DISPC_GFX_ATTRIBUTES,
148 DISPC_VID_ATTRIBUTES(0),
149 DISPC_VID_ATTRIBUTES(1) };
150
151 struct dispc_irq_stats {
152 unsigned long last_reset;
153 unsigned irq_count;
154 unsigned irqs[32];
155 };
156
157 static struct {
158 void __iomem *base;
159
160 u32 fifo_size[3];
161
162 spinlock_t irq_lock;
163 u32 irq_error_mask;
164 struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS];
165 u32 error_irqs;
166 struct work_struct error_work;
167
168 u32 ctx[DISPC_SZ_REGS / sizeof(u32)];
169
170 #ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
171 spinlock_t irq_stats_lock;
172 struct dispc_irq_stats irq_stats;
173 #endif
174 } dispc;
175
176 static void _omap_dispc_set_irqs(void);
177
178 static inline void dispc_write_reg(const struct dispc_reg idx, u32 val)
179 {
180 __raw_writel(val, dispc.base + idx.idx);
181 }
182
183 static inline u32 dispc_read_reg(const struct dispc_reg idx)
184 {
185 return __raw_readl(dispc.base + idx.idx);
186 }
187
188 #define SR(reg) \
189 dispc.ctx[(DISPC_##reg).idx / sizeof(u32)] = dispc_read_reg(DISPC_##reg)
190 #define RR(reg) \
191 dispc_write_reg(DISPC_##reg, dispc.ctx[(DISPC_##reg).idx / sizeof(u32)])
192
193 void dispc_save_context(void)
194 {
195 if (cpu_is_omap24xx())
196 return;
197
198 SR(SYSCONFIG);
199 SR(IRQENABLE);
200 SR(CONTROL);
201 SR(CONFIG);
202 SR(DEFAULT_COLOR0);
203 SR(DEFAULT_COLOR1);
204 SR(TRANS_COLOR0);
205 SR(TRANS_COLOR1);
206 SR(LINE_NUMBER);
207 SR(TIMING_H);
208 SR(TIMING_V);
209 SR(POL_FREQ);
210 SR(DIVISOR);
211 SR(GLOBAL_ALPHA);
212 SR(SIZE_DIG);
213 SR(SIZE_LCD);
214
215 SR(GFX_BA0);
216 SR(GFX_BA1);
217 SR(GFX_POSITION);
218 SR(GFX_SIZE);
219 SR(GFX_ATTRIBUTES);
220 SR(GFX_FIFO_THRESHOLD);
221 SR(GFX_ROW_INC);
222 SR(GFX_PIXEL_INC);
223 SR(GFX_WINDOW_SKIP);
224 SR(GFX_TABLE_BA);
225
226 SR(DATA_CYCLE1);
227 SR(DATA_CYCLE2);
228 SR(DATA_CYCLE3);
229
230 SR(CPR_COEF_R);
231 SR(CPR_COEF_G);
232 SR(CPR_COEF_B);
233
234 SR(GFX_PRELOAD);
235
236 /* VID1 */
237 SR(VID_BA0(0));
238 SR(VID_BA1(0));
239 SR(VID_POSITION(0));
240 SR(VID_SIZE(0));
241 SR(VID_ATTRIBUTES(0));
242 SR(VID_FIFO_THRESHOLD(0));
243 SR(VID_ROW_INC(0));
244 SR(VID_PIXEL_INC(0));
245 SR(VID_FIR(0));
246 SR(VID_PICTURE_SIZE(0));
247 SR(VID_ACCU0(0));
248 SR(VID_ACCU1(0));
249
250 SR(VID_FIR_COEF_H(0, 0));
251 SR(VID_FIR_COEF_H(0, 1));
252 SR(VID_FIR_COEF_H(0, 2));
253 SR(VID_FIR_COEF_H(0, 3));
254 SR(VID_FIR_COEF_H(0, 4));
255 SR(VID_FIR_COEF_H(0, 5));
256 SR(VID_FIR_COEF_H(0, 6));
257 SR(VID_FIR_COEF_H(0, 7));
258
259 SR(VID_FIR_COEF_HV(0, 0));
260 SR(VID_FIR_COEF_HV(0, 1));
261 SR(VID_FIR_COEF_HV(0, 2));
262 SR(VID_FIR_COEF_HV(0, 3));
263 SR(VID_FIR_COEF_HV(0, 4));
264 SR(VID_FIR_COEF_HV(0, 5));
265 SR(VID_FIR_COEF_HV(0, 6));
266 SR(VID_FIR_COEF_HV(0, 7));
267
268 SR(VID_CONV_COEF(0, 0));
269 SR(VID_CONV_COEF(0, 1));
270 SR(VID_CONV_COEF(0, 2));
271 SR(VID_CONV_COEF(0, 3));
272 SR(VID_CONV_COEF(0, 4));
273
274 SR(VID_FIR_COEF_V(0, 0));
275 SR(VID_FIR_COEF_V(0, 1));
276 SR(VID_FIR_COEF_V(0, 2));
277 SR(VID_FIR_COEF_V(0, 3));
278 SR(VID_FIR_COEF_V(0, 4));
279 SR(VID_FIR_COEF_V(0, 5));
280 SR(VID_FIR_COEF_V(0, 6));
281 SR(VID_FIR_COEF_V(0, 7));
282
283 SR(VID_PRELOAD(0));
284
285 /* VID2 */
286 SR(VID_BA0(1));
287 SR(VID_BA1(1));
288 SR(VID_POSITION(1));
289 SR(VID_SIZE(1));
290 SR(VID_ATTRIBUTES(1));
291 SR(VID_FIFO_THRESHOLD(1));
292 SR(VID_ROW_INC(1));
293 SR(VID_PIXEL_INC(1));
294 SR(VID_FIR(1));
295 SR(VID_PICTURE_SIZE(1));
296 SR(VID_ACCU0(1));
297 SR(VID_ACCU1(1));
298
299 SR(VID_FIR_COEF_H(1, 0));
300 SR(VID_FIR_COEF_H(1, 1));
301 SR(VID_FIR_COEF_H(1, 2));
302 SR(VID_FIR_COEF_H(1, 3));
303 SR(VID_FIR_COEF_H(1, 4));
304 SR(VID_FIR_COEF_H(1, 5));
305 SR(VID_FIR_COEF_H(1, 6));
306 SR(VID_FIR_COEF_H(1, 7));
307
308 SR(VID_FIR_COEF_HV(1, 0));
309 SR(VID_FIR_COEF_HV(1, 1));
310 SR(VID_FIR_COEF_HV(1, 2));
311 SR(VID_FIR_COEF_HV(1, 3));
312 SR(VID_FIR_COEF_HV(1, 4));
313 SR(VID_FIR_COEF_HV(1, 5));
314 SR(VID_FIR_COEF_HV(1, 6));
315 SR(VID_FIR_COEF_HV(1, 7));
316
317 SR(VID_CONV_COEF(1, 0));
318 SR(VID_CONV_COEF(1, 1));
319 SR(VID_CONV_COEF(1, 2));
320 SR(VID_CONV_COEF(1, 3));
321 SR(VID_CONV_COEF(1, 4));
322
323 SR(VID_FIR_COEF_V(1, 0));
324 SR(VID_FIR_COEF_V(1, 1));
325 SR(VID_FIR_COEF_V(1, 2));
326 SR(VID_FIR_COEF_V(1, 3));
327 SR(VID_FIR_COEF_V(1, 4));
328 SR(VID_FIR_COEF_V(1, 5));
329 SR(VID_FIR_COEF_V(1, 6));
330 SR(VID_FIR_COEF_V(1, 7));
331
332 SR(VID_PRELOAD(1));
333 }
334
335 void dispc_restore_context(void)
336 {
337 RR(SYSCONFIG);
338 RR(IRQENABLE);
339 /*RR(CONTROL);*/
340 RR(CONFIG);
341 RR(DEFAULT_COLOR0);
342 RR(DEFAULT_COLOR1);
343 RR(TRANS_COLOR0);
344 RR(TRANS_COLOR1);
345 RR(LINE_NUMBER);
346 RR(TIMING_H);
347 RR(TIMING_V);
348 RR(POL_FREQ);
349 RR(DIVISOR);
350 RR(GLOBAL_ALPHA);
351 RR(SIZE_DIG);
352 RR(SIZE_LCD);
353
354 RR(GFX_BA0);
355 RR(GFX_BA1);
356 RR(GFX_POSITION);
357 RR(GFX_SIZE);
358 RR(GFX_ATTRIBUTES);
359 RR(GFX_FIFO_THRESHOLD);
360 RR(GFX_ROW_INC);
361 RR(GFX_PIXEL_INC);
362 RR(GFX_WINDOW_SKIP);
363 RR(GFX_TABLE_BA);
364
365 RR(DATA_CYCLE1);
366 RR(DATA_CYCLE2);
367 RR(DATA_CYCLE3);
368
369 RR(CPR_COEF_R);
370 RR(CPR_COEF_G);
371 RR(CPR_COEF_B);
372
373 RR(GFX_PRELOAD);
374
375 /* VID1 */
376 RR(VID_BA0(0));
377 RR(VID_BA1(0));
378 RR(VID_POSITION(0));
379 RR(VID_SIZE(0));
380 RR(VID_ATTRIBUTES(0));
381 RR(VID_FIFO_THRESHOLD(0));
382 RR(VID_ROW_INC(0));
383 RR(VID_PIXEL_INC(0));
384 RR(VID_FIR(0));
385 RR(VID_PICTURE_SIZE(0));
386 RR(VID_ACCU0(0));
387 RR(VID_ACCU1(0));
388
389 RR(VID_FIR_COEF_H(0, 0));
390 RR(VID_FIR_COEF_H(0, 1));
391 RR(VID_FIR_COEF_H(0, 2));
392 RR(VID_FIR_COEF_H(0, 3));
393 RR(VID_FIR_COEF_H(0, 4));
394 RR(VID_FIR_COEF_H(0, 5));
395 RR(VID_FIR_COEF_H(0, 6));
396 RR(VID_FIR_COEF_H(0, 7));
397
398 RR(VID_FIR_COEF_HV(0, 0));
399 RR(VID_FIR_COEF_HV(0, 1));
400 RR(VID_FIR_COEF_HV(0, 2));
401 RR(VID_FIR_COEF_HV(0, 3));
402 RR(VID_FIR_COEF_HV(0, 4));
403 RR(VID_FIR_COEF_HV(0, 5));
404 RR(VID_FIR_COEF_HV(0, 6));
405 RR(VID_FIR_COEF_HV(0, 7));
406
407 RR(VID_CONV_COEF(0, 0));
408 RR(VID_CONV_COEF(0, 1));
409 RR(VID_CONV_COEF(0, 2));
410 RR(VID_CONV_COEF(0, 3));
411 RR(VID_CONV_COEF(0, 4));
412
413 RR(VID_FIR_COEF_V(0, 0));
414 RR(VID_FIR_COEF_V(0, 1));
415 RR(VID_FIR_COEF_V(0, 2));
416 RR(VID_FIR_COEF_V(0, 3));
417 RR(VID_FIR_COEF_V(0, 4));
418 RR(VID_FIR_COEF_V(0, 5));
419 RR(VID_FIR_COEF_V(0, 6));
420 RR(VID_FIR_COEF_V(0, 7));
421
422 RR(VID_PRELOAD(0));
423
424 /* VID2 */
425 RR(VID_BA0(1));
426 RR(VID_BA1(1));
427 RR(VID_POSITION(1));
428 RR(VID_SIZE(1));
429 RR(VID_ATTRIBUTES(1));
430 RR(VID_FIFO_THRESHOLD(1));
431 RR(VID_ROW_INC(1));
432 RR(VID_PIXEL_INC(1));
433 RR(VID_FIR(1));
434 RR(VID_PICTURE_SIZE(1));
435 RR(VID_ACCU0(1));
436 RR(VID_ACCU1(1));
437
438 RR(VID_FIR_COEF_H(1, 0));
439 RR(VID_FIR_COEF_H(1, 1));
440 RR(VID_FIR_COEF_H(1, 2));
441 RR(VID_FIR_COEF_H(1, 3));
442 RR(VID_FIR_COEF_H(1, 4));
443 RR(VID_FIR_COEF_H(1, 5));
444 RR(VID_FIR_COEF_H(1, 6));
445 RR(VID_FIR_COEF_H(1, 7));
446
447 RR(VID_FIR_COEF_HV(1, 0));
448 RR(VID_FIR_COEF_HV(1, 1));
449 RR(VID_FIR_COEF_HV(1, 2));
450 RR(VID_FIR_COEF_HV(1, 3));
451 RR(VID_FIR_COEF_HV(1, 4));
452 RR(VID_FIR_COEF_HV(1, 5));
453 RR(VID_FIR_COEF_HV(1, 6));
454 RR(VID_FIR_COEF_HV(1, 7));
455
456 RR(VID_CONV_COEF(1, 0));
457 RR(VID_CONV_COEF(1, 1));
458 RR(VID_CONV_COEF(1, 2));
459 RR(VID_CONV_COEF(1, 3));
460 RR(VID_CONV_COEF(1, 4));
461
462 RR(VID_FIR_COEF_V(1, 0));
463 RR(VID_FIR_COEF_V(1, 1));
464 RR(VID_FIR_COEF_V(1, 2));
465 RR(VID_FIR_COEF_V(1, 3));
466 RR(VID_FIR_COEF_V(1, 4));
467 RR(VID_FIR_COEF_V(1, 5));
468 RR(VID_FIR_COEF_V(1, 6));
469 RR(VID_FIR_COEF_V(1, 7));
470
471 RR(VID_PRELOAD(1));
472
473 /* enable last, because LCD & DIGIT enable are here */
474 RR(CONTROL);
475 }
476
477 #undef SR
478 #undef RR
479
480 static inline void enable_clocks(bool enable)
481 {
482 if (enable)
483 dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
484 else
485 dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
486 }
487
488 bool dispc_go_busy(enum omap_channel channel)
489 {
490 int bit;
491
492 if (channel == OMAP_DSS_CHANNEL_LCD)
493 bit = 5; /* GOLCD */
494 else
495 bit = 6; /* GODIGIT */
496
497 return REG_GET(DISPC_CONTROL, bit, bit) == 1;
498 }
499
500 void dispc_go(enum omap_channel channel)
501 {
502 int bit;
503
504 enable_clocks(1);
505
506 if (channel == OMAP_DSS_CHANNEL_LCD)
507 bit = 0; /* LCDENABLE */
508 else
509 bit = 1; /* DIGITALENABLE */
510
511 /* if the channel is not enabled, we don't need GO */
512 if (REG_GET(DISPC_CONTROL, bit, bit) == 0)
513 goto end;
514
515 if (channel == OMAP_DSS_CHANNEL_LCD)
516 bit = 5; /* GOLCD */
517 else
518 bit = 6; /* GODIGIT */
519
520 if (REG_GET(DISPC_CONTROL, bit, bit) == 1) {
521 DSSERR("GO bit not down for channel %d\n", channel);
522 goto end;
523 }
524
525 DSSDBG("GO %s\n", channel == OMAP_DSS_CHANNEL_LCD ? "LCD" : "DIGIT");
526
527 REG_FLD_MOD(DISPC_CONTROL, 1, bit, bit);
528 end:
529 enable_clocks(0);
530 }
531
532 static void _dispc_write_firh_reg(enum omap_plane plane, int reg, u32 value)
533 {
534 BUG_ON(plane == OMAP_DSS_GFX);
535
536 dispc_write_reg(DISPC_VID_FIR_COEF_H(plane-1, reg), value);
537 }
538
539 static void _dispc_write_firhv_reg(enum omap_plane plane, int reg, u32 value)
540 {
541 BUG_ON(plane == OMAP_DSS_GFX);
542
543 dispc_write_reg(DISPC_VID_FIR_COEF_HV(plane-1, reg), value);
544 }
545
546 static void _dispc_write_firv_reg(enum omap_plane plane, int reg, u32 value)
547 {
548 BUG_ON(plane == OMAP_DSS_GFX);
549
550 dispc_write_reg(DISPC_VID_FIR_COEF_V(plane-1, reg), value);
551 }
552
553 static void _dispc_set_scale_coef(enum omap_plane plane, int hscaleup,
554 int vscaleup, int five_taps)
555 {
556 /* Coefficients for horizontal up-sampling */
557 static const u32 coef_hup[8] = {
558 0x00800000,
559 0x0D7CF800,
560 0x1E70F5FF,
561 0x335FF5FE,
562 0xF74949F7,
563 0xF55F33FB,
564 0xF5701EFE,
565 0xF87C0DFF,
566 };
567
568 /* Coefficients for horizontal down-sampling */
569 static const u32 coef_hdown[8] = {
570 0x24382400,
571 0x28371FFE,
572 0x2C361BFB,
573 0x303516F9,
574 0x11343311,
575 0x1635300C,
576 0x1B362C08,
577 0x1F372804,
578 };
579
580 /* Coefficients for horizontal and vertical up-sampling */
581 static const u32 coef_hvup[2][8] = {
582 {
583 0x00800000,
584 0x037B02FF,
585 0x0C6F05FE,
586 0x205907FB,
587 0x00404000,
588 0x075920FE,
589 0x056F0CFF,
590 0x027B0300,
591 },
592 {
593 0x00800000,
594 0x0D7CF8FF,
595 0x1E70F5FE,
596 0x335FF5FB,
597 0xF7404000,
598 0xF55F33FE,
599 0xF5701EFF,
600 0xF87C0D00,
601 },
602 };
603
604 /* Coefficients for horizontal and vertical down-sampling */
605 static const u32 coef_hvdown[2][8] = {
606 {
607 0x24382400,
608 0x28391F04,
609 0x2D381B08,
610 0x3237170C,
611 0x123737F7,
612 0x173732F9,
613 0x1B382DFB,
614 0x1F3928FE,
615 },
616 {
617 0x24382400,
618 0x28371F04,
619 0x2C361B08,
620 0x3035160C,
621 0x113433F7,
622 0x163530F9,
623 0x1B362CFB,
624 0x1F3728FE,
625 },
626 };
627
628 /* Coefficients for vertical up-sampling */
629 static const u32 coef_vup[8] = {
630 0x00000000,
631 0x0000FF00,
632 0x0000FEFF,
633 0x0000FBFE,
634 0x000000F7,
635 0x0000FEFB,
636 0x0000FFFE,
637 0x000000FF,
638 };
639
640
641 /* Coefficients for vertical down-sampling */
642 static const u32 coef_vdown[8] = {
643 0x00000000,
644 0x000004FE,
645 0x000008FB,
646 0x00000CF9,
647 0x0000F711,
648 0x0000F90C,
649 0x0000FB08,
650 0x0000FE04,
651 };
652
653 const u32 *h_coef;
654 const u32 *hv_coef;
655 const u32 *hv_coef_mod;
656 const u32 *v_coef;
657 int i;
658
659 if (hscaleup)
660 h_coef = coef_hup;
661 else
662 h_coef = coef_hdown;
663
664 if (vscaleup) {
665 hv_coef = coef_hvup[five_taps];
666 v_coef = coef_vup;
667
668 if (hscaleup)
669 hv_coef_mod = NULL;
670 else
671 hv_coef_mod = coef_hvdown[five_taps];
672 } else {
673 hv_coef = coef_hvdown[five_taps];
674 v_coef = coef_vdown;
675
676 if (hscaleup)
677 hv_coef_mod = coef_hvup[five_taps];
678 else
679 hv_coef_mod = NULL;
680 }
681
682 for (i = 0; i < 8; i++) {
683 u32 h, hv;
684
685 h = h_coef[i];
686
687 hv = hv_coef[i];
688
689 if (hv_coef_mod) {
690 hv &= 0xffffff00;
691 hv |= (hv_coef_mod[i] & 0xff);
692 }
693
694 _dispc_write_firh_reg(plane, i, h);
695 _dispc_write_firhv_reg(plane, i, hv);
696 }
697
698 if (!five_taps)
699 return;
700
701 for (i = 0; i < 8; i++) {
702 u32 v;
703 v = v_coef[i];
704 _dispc_write_firv_reg(plane, i, v);
705 }
706 }
707
708 static void _dispc_setup_color_conv_coef(void)
709 {
710 const struct color_conv_coef {
711 int ry, rcr, rcb, gy, gcr, gcb, by, bcr, bcb;
712 int full_range;
713 } ctbl_bt601_5 = {
714 298, 409, 0, 298, -208, -100, 298, 0, 517, 0,
715 };
716
717 const struct color_conv_coef *ct;
718
719 #define CVAL(x, y) (FLD_VAL(x, 26, 16) | FLD_VAL(y, 10, 0))
720
721 ct = &ctbl_bt601_5;
722
723 dispc_write_reg(DISPC_VID_CONV_COEF(0, 0), CVAL(ct->rcr, ct->ry));
724 dispc_write_reg(DISPC_VID_CONV_COEF(0, 1), CVAL(ct->gy, ct->rcb));
725 dispc_write_reg(DISPC_VID_CONV_COEF(0, 2), CVAL(ct->gcb, ct->gcr));
726 dispc_write_reg(DISPC_VID_CONV_COEF(0, 3), CVAL(ct->bcr, ct->by));
727 dispc_write_reg(DISPC_VID_CONV_COEF(0, 4), CVAL(0, ct->bcb));
728
729 dispc_write_reg(DISPC_VID_CONV_COEF(1, 0), CVAL(ct->rcr, ct->ry));
730 dispc_write_reg(DISPC_VID_CONV_COEF(1, 1), CVAL(ct->gy, ct->rcb));
731 dispc_write_reg(DISPC_VID_CONV_COEF(1, 2), CVAL(ct->gcb, ct->gcr));
732 dispc_write_reg(DISPC_VID_CONV_COEF(1, 3), CVAL(ct->bcr, ct->by));
733 dispc_write_reg(DISPC_VID_CONV_COEF(1, 4), CVAL(0, ct->bcb));
734
735 #undef CVAL
736
737 REG_FLD_MOD(DISPC_VID_ATTRIBUTES(0), ct->full_range, 11, 11);
738 REG_FLD_MOD(DISPC_VID_ATTRIBUTES(1), ct->full_range, 11, 11);
739 }
740
741
742 static void _dispc_set_plane_ba0(enum omap_plane plane, u32 paddr)
743 {
744 const struct dispc_reg ba0_reg[] = { DISPC_GFX_BA0,
745 DISPC_VID_BA0(0),
746 DISPC_VID_BA0(1) };
747
748 dispc_write_reg(ba0_reg[plane], paddr);
749 }
750
751 static void _dispc_set_plane_ba1(enum omap_plane plane, u32 paddr)
752 {
753 const struct dispc_reg ba1_reg[] = { DISPC_GFX_BA1,
754 DISPC_VID_BA1(0),
755 DISPC_VID_BA1(1) };
756
757 dispc_write_reg(ba1_reg[plane], paddr);
758 }
759
760 static void _dispc_set_plane_pos(enum omap_plane plane, int x, int y)
761 {
762 const struct dispc_reg pos_reg[] = { DISPC_GFX_POSITION,
763 DISPC_VID_POSITION(0),
764 DISPC_VID_POSITION(1) };
765
766 u32 val = FLD_VAL(y, 26, 16) | FLD_VAL(x, 10, 0);
767 dispc_write_reg(pos_reg[plane], val);
768 }
769
770 static void _dispc_set_pic_size(enum omap_plane plane, int width, int height)
771 {
772 const struct dispc_reg siz_reg[] = { DISPC_GFX_SIZE,
773 DISPC_VID_PICTURE_SIZE(0),
774 DISPC_VID_PICTURE_SIZE(1) };
775 u32 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
776 dispc_write_reg(siz_reg[plane], val);
777 }
778
779 static void _dispc_set_vid_size(enum omap_plane plane, int width, int height)
780 {
781 u32 val;
782 const struct dispc_reg vsi_reg[] = { DISPC_VID_SIZE(0),
783 DISPC_VID_SIZE(1) };
784
785 BUG_ON(plane == OMAP_DSS_GFX);
786
787 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
788 dispc_write_reg(vsi_reg[plane-1], val);
789 }
790
791 static void _dispc_setup_global_alpha(enum omap_plane plane, u8 global_alpha)
792 {
793
794 BUG_ON(plane == OMAP_DSS_VIDEO1);
795
796 if (cpu_is_omap24xx())
797 return;
798
799 if (plane == OMAP_DSS_GFX)
800 REG_FLD_MOD(DISPC_GLOBAL_ALPHA, global_alpha, 7, 0);
801 else if (plane == OMAP_DSS_VIDEO2)
802 REG_FLD_MOD(DISPC_GLOBAL_ALPHA, global_alpha, 23, 16);
803 }
804
805 static void _dispc_set_pix_inc(enum omap_plane plane, s32 inc)
806 {
807 const struct dispc_reg ri_reg[] = { DISPC_GFX_PIXEL_INC,
808 DISPC_VID_PIXEL_INC(0),
809 DISPC_VID_PIXEL_INC(1) };
810
811 dispc_write_reg(ri_reg[plane], inc);
812 }
813
814 static void _dispc_set_row_inc(enum omap_plane plane, s32 inc)
815 {
816 const struct dispc_reg ri_reg[] = { DISPC_GFX_ROW_INC,
817 DISPC_VID_ROW_INC(0),
818 DISPC_VID_ROW_INC(1) };
819
820 dispc_write_reg(ri_reg[plane], inc);
821 }
822
823 static void _dispc_set_color_mode(enum omap_plane plane,
824 enum omap_color_mode color_mode)
825 {
826 u32 m = 0;
827
828 switch (color_mode) {
829 case OMAP_DSS_COLOR_CLUT1:
830 m = 0x0; break;
831 case OMAP_DSS_COLOR_CLUT2:
832 m = 0x1; break;
833 case OMAP_DSS_COLOR_CLUT4:
834 m = 0x2; break;
835 case OMAP_DSS_COLOR_CLUT8:
836 m = 0x3; break;
837 case OMAP_DSS_COLOR_RGB12U:
838 m = 0x4; break;
839 case OMAP_DSS_COLOR_ARGB16:
840 m = 0x5; break;
841 case OMAP_DSS_COLOR_RGB16:
842 m = 0x6; break;
843 case OMAP_DSS_COLOR_RGB24U:
844 m = 0x8; break;
845 case OMAP_DSS_COLOR_RGB24P:
846 m = 0x9; break;
847 case OMAP_DSS_COLOR_YUV2:
848 m = 0xa; break;
849 case OMAP_DSS_COLOR_UYVY:
850 m = 0xb; break;
851 case OMAP_DSS_COLOR_ARGB32:
852 m = 0xc; break;
853 case OMAP_DSS_COLOR_RGBA32:
854 m = 0xd; break;
855 case OMAP_DSS_COLOR_RGBX32:
856 m = 0xe; break;
857 default:
858 BUG(); break;
859 }
860
861 REG_FLD_MOD(dispc_reg_att[plane], m, 4, 1);
862 }
863
864 static void _dispc_set_channel_out(enum omap_plane plane,
865 enum omap_channel channel)
866 {
867 int shift;
868 u32 val;
869
870 switch (plane) {
871 case OMAP_DSS_GFX:
872 shift = 8;
873 break;
874 case OMAP_DSS_VIDEO1:
875 case OMAP_DSS_VIDEO2:
876 shift = 16;
877 break;
878 default:
879 BUG();
880 return;
881 }
882
883 val = dispc_read_reg(dispc_reg_att[plane]);
884 val = FLD_MOD(val, channel, shift, shift);
885 dispc_write_reg(dispc_reg_att[plane], val);
886 }
887
888 void dispc_set_burst_size(enum omap_plane plane,
889 enum omap_burst_size burst_size)
890 {
891 int shift;
892 u32 val;
893
894 enable_clocks(1);
895
896 switch (plane) {
897 case OMAP_DSS_GFX:
898 shift = 6;
899 break;
900 case OMAP_DSS_VIDEO1:
901 case OMAP_DSS_VIDEO2:
902 shift = 14;
903 break;
904 default:
905 BUG();
906 return;
907 }
908
909 val = dispc_read_reg(dispc_reg_att[plane]);
910 val = FLD_MOD(val, burst_size, shift+1, shift);
911 dispc_write_reg(dispc_reg_att[plane], val);
912
913 enable_clocks(0);
914 }
915
916 static void _dispc_set_vid_color_conv(enum omap_plane plane, bool enable)
917 {
918 u32 val;
919
920 BUG_ON(plane == OMAP_DSS_GFX);
921
922 val = dispc_read_reg(dispc_reg_att[plane]);
923 val = FLD_MOD(val, enable, 9, 9);
924 dispc_write_reg(dispc_reg_att[plane], val);
925 }
926
927 void dispc_enable_replication(enum omap_plane plane, bool enable)
928 {
929 int bit;
930
931 if (plane == OMAP_DSS_GFX)
932 bit = 5;
933 else
934 bit = 10;
935
936 enable_clocks(1);
937 REG_FLD_MOD(dispc_reg_att[plane], enable, bit, bit);
938 enable_clocks(0);
939 }
940
941 void dispc_set_lcd_size(u16 width, u16 height)
942 {
943 u32 val;
944 BUG_ON((width > (1 << 11)) || (height > (1 << 11)));
945 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
946 enable_clocks(1);
947 dispc_write_reg(DISPC_SIZE_LCD, val);
948 enable_clocks(0);
949 }
950
951 void dispc_set_digit_size(u16 width, u16 height)
952 {
953 u32 val;
954 BUG_ON((width > (1 << 11)) || (height > (1 << 11)));
955 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0);
956 enable_clocks(1);
957 dispc_write_reg(DISPC_SIZE_DIG, val);
958 enable_clocks(0);
959 }
960
961 static void dispc_read_plane_fifo_sizes(void)
962 {
963 const struct dispc_reg fsz_reg[] = { DISPC_GFX_FIFO_SIZE_STATUS,
964 DISPC_VID_FIFO_SIZE_STATUS(0),
965 DISPC_VID_FIFO_SIZE_STATUS(1) };
966 u32 size;
967 int plane;
968
969 enable_clocks(1);
970
971 for (plane = 0; plane < ARRAY_SIZE(dispc.fifo_size); ++plane) {
972 if (cpu_is_omap24xx())
973 size = FLD_GET(dispc_read_reg(fsz_reg[plane]), 8, 0);
974 else if (cpu_is_omap34xx())
975 size = FLD_GET(dispc_read_reg(fsz_reg[plane]), 10, 0);
976 else
977 BUG();
978
979 dispc.fifo_size[plane] = size;
980 }
981
982 enable_clocks(0);
983 }
984
985 u32 dispc_get_plane_fifo_size(enum omap_plane plane)
986 {
987 return dispc.fifo_size[plane];
988 }
989
990 void dispc_setup_plane_fifo(enum omap_plane plane, u32 low, u32 high)
991 {
992 const struct dispc_reg ftrs_reg[] = { DISPC_GFX_FIFO_THRESHOLD,
993 DISPC_VID_FIFO_THRESHOLD(0),
994 DISPC_VID_FIFO_THRESHOLD(1) };
995 enable_clocks(1);
996
997 DSSDBG("fifo(%d) low/high old %u/%u, new %u/%u\n",
998 plane,
999 REG_GET(ftrs_reg[plane], 11, 0),
1000 REG_GET(ftrs_reg[plane], 27, 16),
1001 low, high);
1002
1003 if (cpu_is_omap24xx())
1004 dispc_write_reg(ftrs_reg[plane],
1005 FLD_VAL(high, 24, 16) | FLD_VAL(low, 8, 0));
1006 else
1007 dispc_write_reg(ftrs_reg[plane],
1008 FLD_VAL(high, 27, 16) | FLD_VAL(low, 11, 0));
1009
1010 enable_clocks(0);
1011 }
1012
1013 void dispc_enable_fifomerge(bool enable)
1014 {
1015 enable_clocks(1);
1016
1017 DSSDBG("FIFO merge %s\n", enable ? "enabled" : "disabled");
1018 REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 14, 14);
1019
1020 enable_clocks(0);
1021 }
1022
1023 static void _dispc_set_fir(enum omap_plane plane, int hinc, int vinc)
1024 {
1025 u32 val;
1026 const struct dispc_reg fir_reg[] = { DISPC_VID_FIR(0),
1027 DISPC_VID_FIR(1) };
1028
1029 BUG_ON(plane == OMAP_DSS_GFX);
1030
1031 if (cpu_is_omap24xx())
1032 val = FLD_VAL(vinc, 27, 16) | FLD_VAL(hinc, 11, 0);
1033 else
1034 val = FLD_VAL(vinc, 28, 16) | FLD_VAL(hinc, 12, 0);
1035 dispc_write_reg(fir_reg[plane-1], val);
1036 }
1037
1038 static void _dispc_set_vid_accu0(enum omap_plane plane, int haccu, int vaccu)
1039 {
1040 u32 val;
1041 const struct dispc_reg ac0_reg[] = { DISPC_VID_ACCU0(0),
1042 DISPC_VID_ACCU0(1) };
1043
1044 BUG_ON(plane == OMAP_DSS_GFX);
1045
1046 val = FLD_VAL(vaccu, 25, 16) | FLD_VAL(haccu, 9, 0);
1047 dispc_write_reg(ac0_reg[plane-1], val);
1048 }
1049
1050 static void _dispc_set_vid_accu1(enum omap_plane plane, int haccu, int vaccu)
1051 {
1052 u32 val;
1053 const struct dispc_reg ac1_reg[] = { DISPC_VID_ACCU1(0),
1054 DISPC_VID_ACCU1(1) };
1055
1056 BUG_ON(plane == OMAP_DSS_GFX);
1057
1058 val = FLD_VAL(vaccu, 25, 16) | FLD_VAL(haccu, 9, 0);
1059 dispc_write_reg(ac1_reg[plane-1], val);
1060 }
1061
1062
1063 static void _dispc_set_scaling(enum omap_plane plane,
1064 u16 orig_width, u16 orig_height,
1065 u16 out_width, u16 out_height,
1066 bool ilace, bool five_taps,
1067 bool fieldmode)
1068 {
1069 int fir_hinc;
1070 int fir_vinc;
1071 int hscaleup, vscaleup;
1072 int accu0 = 0;
1073 int accu1 = 0;
1074 u32 l;
1075
1076 BUG_ON(plane == OMAP_DSS_GFX);
1077
1078 hscaleup = orig_width <= out_width;
1079 vscaleup = orig_height <= out_height;
1080
1081 _dispc_set_scale_coef(plane, hscaleup, vscaleup, five_taps);
1082
1083 if (!orig_width || orig_width == out_width)
1084 fir_hinc = 0;
1085 else
1086 fir_hinc = 1024 * orig_width / out_width;
1087
1088 if (!orig_height || orig_height == out_height)
1089 fir_vinc = 0;
1090 else
1091 fir_vinc = 1024 * orig_height / out_height;
1092
1093 _dispc_set_fir(plane, fir_hinc, fir_vinc);
1094
1095 l = dispc_read_reg(dispc_reg_att[plane]);
1096 l &= ~((0x0f << 5) | (0x3 << 21));
1097
1098 l |= fir_hinc ? (1 << 5) : 0;
1099 l |= fir_vinc ? (1 << 6) : 0;
1100
1101 l |= hscaleup ? 0 : (1 << 7);
1102 l |= vscaleup ? 0 : (1 << 8);
1103
1104 l |= five_taps ? (1 << 21) : 0;
1105 l |= five_taps ? (1 << 22) : 0;
1106
1107 dispc_write_reg(dispc_reg_att[plane], l);
1108
1109 /*
1110 * field 0 = even field = bottom field
1111 * field 1 = odd field = top field
1112 */
1113 if (ilace && !fieldmode) {
1114 accu1 = 0;
1115 accu0 = (fir_vinc / 2) & 0x3ff;
1116 if (accu0 >= 1024/2) {
1117 accu1 = 1024/2;
1118 accu0 -= accu1;
1119 }
1120 }
1121
1122 _dispc_set_vid_accu0(plane, 0, accu0);
1123 _dispc_set_vid_accu1(plane, 0, accu1);
1124 }
1125
1126 static void _dispc_set_rotation_attrs(enum omap_plane plane, u8 rotation,
1127 bool mirroring, enum omap_color_mode color_mode)
1128 {
1129 if (color_mode == OMAP_DSS_COLOR_YUV2 ||
1130 color_mode == OMAP_DSS_COLOR_UYVY) {
1131 int vidrot = 0;
1132
1133 if (mirroring) {
1134 switch (rotation) {
1135 case OMAP_DSS_ROT_0:
1136 vidrot = 2;
1137 break;
1138 case OMAP_DSS_ROT_90:
1139 vidrot = 1;
1140 break;
1141 case OMAP_DSS_ROT_180:
1142 vidrot = 0;
1143 break;
1144 case OMAP_DSS_ROT_270:
1145 vidrot = 3;
1146 break;
1147 }
1148 } else {
1149 switch (rotation) {
1150 case OMAP_DSS_ROT_0:
1151 vidrot = 0;
1152 break;
1153 case OMAP_DSS_ROT_90:
1154 vidrot = 1;
1155 break;
1156 case OMAP_DSS_ROT_180:
1157 vidrot = 2;
1158 break;
1159 case OMAP_DSS_ROT_270:
1160 vidrot = 3;
1161 break;
1162 }
1163 }
1164
1165 REG_FLD_MOD(dispc_reg_att[plane], vidrot, 13, 12);
1166
1167 if (rotation == OMAP_DSS_ROT_90 || rotation == OMAP_DSS_ROT_270)
1168 REG_FLD_MOD(dispc_reg_att[plane], 0x1, 18, 18);
1169 else
1170 REG_FLD_MOD(dispc_reg_att[plane], 0x0, 18, 18);
1171 } else {
1172 REG_FLD_MOD(dispc_reg_att[plane], 0, 13, 12);
1173 REG_FLD_MOD(dispc_reg_att[plane], 0, 18, 18);
1174 }
1175 }
1176
1177 static int color_mode_to_bpp(enum omap_color_mode color_mode)
1178 {
1179 switch (color_mode) {
1180 case OMAP_DSS_COLOR_CLUT1:
1181 return 1;
1182 case OMAP_DSS_COLOR_CLUT2:
1183 return 2;
1184 case OMAP_DSS_COLOR_CLUT4:
1185 return 4;
1186 case OMAP_DSS_COLOR_CLUT8:
1187 return 8;
1188 case OMAP_DSS_COLOR_RGB12U:
1189 case OMAP_DSS_COLOR_RGB16:
1190 case OMAP_DSS_COLOR_ARGB16:
1191 case OMAP_DSS_COLOR_YUV2:
1192 case OMAP_DSS_COLOR_UYVY:
1193 return 16;
1194 case OMAP_DSS_COLOR_RGB24P:
1195 return 24;
1196 case OMAP_DSS_COLOR_RGB24U:
1197 case OMAP_DSS_COLOR_ARGB32:
1198 case OMAP_DSS_COLOR_RGBA32:
1199 case OMAP_DSS_COLOR_RGBX32:
1200 return 32;
1201 default:
1202 BUG();
1203 }
1204 }
1205
1206 static s32 pixinc(int pixels, u8 ps)
1207 {
1208 if (pixels == 1)
1209 return 1;
1210 else if (pixels > 1)
1211 return 1 + (pixels - 1) * ps;
1212 else if (pixels < 0)
1213 return 1 - (-pixels + 1) * ps;
1214 else
1215 BUG();
1216 }
1217
1218 static void calc_vrfb_rotation_offset(u8 rotation, bool mirror,
1219 u16 screen_width,
1220 u16 width, u16 height,
1221 enum omap_color_mode color_mode, bool fieldmode,
1222 unsigned int field_offset,
1223 unsigned *offset0, unsigned *offset1,
1224 s32 *row_inc, s32 *pix_inc)
1225 {
1226 u8 ps;
1227
1228 /* FIXME CLUT formats */
1229 switch (color_mode) {
1230 case OMAP_DSS_COLOR_CLUT1:
1231 case OMAP_DSS_COLOR_CLUT2:
1232 case OMAP_DSS_COLOR_CLUT4:
1233 case OMAP_DSS_COLOR_CLUT8:
1234 BUG();
1235 return;
1236 case OMAP_DSS_COLOR_YUV2:
1237 case OMAP_DSS_COLOR_UYVY:
1238 ps = 4;
1239 break;
1240 default:
1241 ps = color_mode_to_bpp(color_mode) / 8;
1242 break;
1243 }
1244
1245 DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width,
1246 width, height);
1247
1248 /*
1249 * field 0 = even field = bottom field
1250 * field 1 = odd field = top field
1251 */
1252 switch (rotation + mirror * 4) {
1253 case OMAP_DSS_ROT_0:
1254 case OMAP_DSS_ROT_180:
1255 /*
1256 * If the pixel format is YUV or UYVY divide the width
1257 * of the image by 2 for 0 and 180 degree rotation.
1258 */
1259 if (color_mode == OMAP_DSS_COLOR_YUV2 ||
1260 color_mode == OMAP_DSS_COLOR_UYVY)
1261 width = width >> 1;
1262 case OMAP_DSS_ROT_90:
1263 case OMAP_DSS_ROT_270:
1264 *offset1 = 0;
1265 if (field_offset)
1266 *offset0 = field_offset * screen_width * ps;
1267 else
1268 *offset0 = 0;
1269
1270 *row_inc = pixinc(1 + (screen_width - width) +
1271 (fieldmode ? screen_width : 0),
1272 ps);
1273 *pix_inc = pixinc(1, ps);
1274 break;
1275
1276 case OMAP_DSS_ROT_0 + 4:
1277 case OMAP_DSS_ROT_180 + 4:
1278 /* If the pixel format is YUV or UYVY divide the width
1279 * of the image by 2 for 0 degree and 180 degree
1280 */
1281 if (color_mode == OMAP_DSS_COLOR_YUV2 ||
1282 color_mode == OMAP_DSS_COLOR_UYVY)
1283 width = width >> 1;
1284 case OMAP_DSS_ROT_90 + 4:
1285 case OMAP_DSS_ROT_270 + 4:
1286 *offset1 = 0;
1287 if (field_offset)
1288 *offset0 = field_offset * screen_width * ps;
1289 else
1290 *offset0 = 0;
1291 *row_inc = pixinc(1 - (screen_width + width) -
1292 (fieldmode ? screen_width : 0),
1293 ps);
1294 *pix_inc = pixinc(1, ps);
1295 break;
1296
1297 default:
1298 BUG();
1299 }
1300 }
1301
1302 static void calc_dma_rotation_offset(u8 rotation, bool mirror,
1303 u16 screen_width,
1304 u16 width, u16 height,
1305 enum omap_color_mode color_mode, bool fieldmode,
1306 unsigned int field_offset,
1307 unsigned *offset0, unsigned *offset1,
1308 s32 *row_inc, s32 *pix_inc)
1309 {
1310 u8 ps;
1311 u16 fbw, fbh;
1312
1313 /* FIXME CLUT formats */
1314 switch (color_mode) {
1315 case OMAP_DSS_COLOR_CLUT1:
1316 case OMAP_DSS_COLOR_CLUT2:
1317 case OMAP_DSS_COLOR_CLUT4:
1318 case OMAP_DSS_COLOR_CLUT8:
1319 BUG();
1320 return;
1321 default:
1322 ps = color_mode_to_bpp(color_mode) / 8;
1323 break;
1324 }
1325
1326 DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width,
1327 width, height);
1328
1329 /* width & height are overlay sizes, convert to fb sizes */
1330
1331 if (rotation == OMAP_DSS_ROT_0 || rotation == OMAP_DSS_ROT_180) {
1332 fbw = width;
1333 fbh = height;
1334 } else {
1335 fbw = height;
1336 fbh = width;
1337 }
1338
1339 /*
1340 * field 0 = even field = bottom field
1341 * field 1 = odd field = top field
1342 */
1343 switch (rotation + mirror * 4) {
1344 case OMAP_DSS_ROT_0:
1345 *offset1 = 0;
1346 if (field_offset)
1347 *offset0 = *offset1 + field_offset * screen_width * ps;
1348 else
1349 *offset0 = *offset1;
1350 *row_inc = pixinc(1 + (screen_width - fbw) +
1351 (fieldmode ? screen_width : 0),
1352 ps);
1353 *pix_inc = pixinc(1, ps);
1354 break;
1355 case OMAP_DSS_ROT_90:
1356 *offset1 = screen_width * (fbh - 1) * ps;
1357 if (field_offset)
1358 *offset0 = *offset1 + field_offset * ps;
1359 else
1360 *offset0 = *offset1;
1361 *row_inc = pixinc(screen_width * (fbh - 1) + 1 +
1362 (fieldmode ? 1 : 0), ps);
1363 *pix_inc = pixinc(-screen_width, ps);
1364 break;
1365 case OMAP_DSS_ROT_180:
1366 *offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps;
1367 if (field_offset)
1368 *offset0 = *offset1 - field_offset * screen_width * ps;
1369 else
1370 *offset0 = *offset1;
1371 *row_inc = pixinc(-1 -
1372 (screen_width - fbw) -
1373 (fieldmode ? screen_width : 0),
1374 ps);
1375 *pix_inc = pixinc(-1, ps);
1376 break;
1377 case OMAP_DSS_ROT_270:
1378 *offset1 = (fbw - 1) * ps;
1379 if (field_offset)
1380 *offset0 = *offset1 - field_offset * ps;
1381 else
1382 *offset0 = *offset1;
1383 *row_inc = pixinc(-screen_width * (fbh - 1) - 1 -
1384 (fieldmode ? 1 : 0), ps);
1385 *pix_inc = pixinc(screen_width, ps);
1386 break;
1387
1388 /* mirroring */
1389 case OMAP_DSS_ROT_0 + 4:
1390 *offset1 = (fbw - 1) * ps;
1391 if (field_offset)
1392 *offset0 = *offset1 + field_offset * screen_width * ps;
1393 else
1394 *offset0 = *offset1;
1395 *row_inc = pixinc(screen_width * 2 - 1 +
1396 (fieldmode ? screen_width : 0),
1397 ps);
1398 *pix_inc = pixinc(-1, ps);
1399 break;
1400
1401 case OMAP_DSS_ROT_90 + 4:
1402 *offset1 = 0;
1403 if (field_offset)
1404 *offset0 = *offset1 + field_offset * ps;
1405 else
1406 *offset0 = *offset1;
1407 *row_inc = pixinc(-screen_width * (fbh - 1) + 1 +
1408 (fieldmode ? 1 : 0),
1409 ps);
1410 *pix_inc = pixinc(screen_width, ps);
1411 break;
1412
1413 case OMAP_DSS_ROT_180 + 4:
1414 *offset1 = screen_width * (fbh - 1) * ps;
1415 if (field_offset)
1416 *offset0 = *offset1 - field_offset * screen_width * ps;
1417 else
1418 *offset0 = *offset1;
1419 *row_inc = pixinc(1 - screen_width * 2 -
1420 (fieldmode ? screen_width : 0),
1421 ps);
1422 *pix_inc = pixinc(1, ps);
1423 break;
1424
1425 case OMAP_DSS_ROT_270 + 4:
1426 *offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps;
1427 if (field_offset)
1428 *offset0 = *offset1 - field_offset * ps;
1429 else
1430 *offset0 = *offset1;
1431 *row_inc = pixinc(screen_width * (fbh - 1) - 1 -
1432 (fieldmode ? 1 : 0),
1433 ps);
1434 *pix_inc = pixinc(-screen_width, ps);
1435 break;
1436
1437 default:
1438 BUG();
1439 }
1440 }
1441
1442 static unsigned long calc_fclk_five_taps(u16 width, u16 height,
1443 u16 out_width, u16 out_height, enum omap_color_mode color_mode)
1444 {
1445 u32 fclk = 0;
1446 /* FIXME venc pclk? */
1447 u64 tmp, pclk = dispc_pclk_rate();
1448
1449 if (height > out_height) {
1450 /* FIXME get real display PPL */
1451 unsigned int ppl = 800;
1452
1453 tmp = pclk * height * out_width;
1454 do_div(tmp, 2 * out_height * ppl);
1455 fclk = tmp;
1456
1457 if (height > 2 * out_height) {
1458 if (ppl == out_width)
1459 return 0;
1460
1461 tmp = pclk * (height - 2 * out_height) * out_width;
1462 do_div(tmp, 2 * out_height * (ppl - out_width));
1463 fclk = max(fclk, (u32) tmp);
1464 }
1465 }
1466
1467 if (width > out_width) {
1468 tmp = pclk * width;
1469 do_div(tmp, out_width);
1470 fclk = max(fclk, (u32) tmp);
1471
1472 if (color_mode == OMAP_DSS_COLOR_RGB24U)
1473 fclk <<= 1;
1474 }
1475
1476 return fclk;
1477 }
1478
1479 static unsigned long calc_fclk(u16 width, u16 height,
1480 u16 out_width, u16 out_height)
1481 {
1482 unsigned int hf, vf;
1483
1484 /*
1485 * FIXME how to determine the 'A' factor
1486 * for the no downscaling case ?
1487 */
1488
1489 if (width > 3 * out_width)
1490 hf = 4;
1491 else if (width > 2 * out_width)
1492 hf = 3;
1493 else if (width > out_width)
1494 hf = 2;
1495 else
1496 hf = 1;
1497
1498 if (height > out_height)
1499 vf = 2;
1500 else
1501 vf = 1;
1502
1503 /* FIXME venc pclk? */
1504 return dispc_pclk_rate() * vf * hf;
1505 }
1506
1507 void dispc_set_channel_out(enum omap_plane plane, enum omap_channel channel_out)
1508 {
1509 enable_clocks(1);
1510 _dispc_set_channel_out(plane, channel_out);
1511 enable_clocks(0);
1512 }
1513
1514 static int _dispc_setup_plane(enum omap_plane plane,
1515 u32 paddr, u16 screen_width,
1516 u16 pos_x, u16 pos_y,
1517 u16 width, u16 height,
1518 u16 out_width, u16 out_height,
1519 enum omap_color_mode color_mode,
1520 bool ilace,
1521 enum omap_dss_rotation_type rotation_type,
1522 u8 rotation, int mirror,
1523 u8 global_alpha)
1524 {
1525 const int maxdownscale = cpu_is_omap34xx() ? 4 : 2;
1526 bool five_taps = 0;
1527 bool fieldmode = 0;
1528 int cconv = 0;
1529 unsigned offset0, offset1;
1530 s32 row_inc;
1531 s32 pix_inc;
1532 u16 frame_height = height;
1533 unsigned int field_offset = 0;
1534
1535 if (paddr == 0)
1536 return -EINVAL;
1537
1538 if (ilace && height == out_height)
1539 fieldmode = 1;
1540
1541 if (ilace) {
1542 if (fieldmode)
1543 height /= 2;
1544 pos_y /= 2;
1545 out_height /= 2;
1546
1547 DSSDBG("adjusting for ilace: height %d, pos_y %d, "
1548 "out_height %d\n",
1549 height, pos_y, out_height);
1550 }
1551
1552 if (plane == OMAP_DSS_GFX) {
1553 if (width != out_width || height != out_height)
1554 return -EINVAL;
1555
1556 switch (color_mode) {
1557 case OMAP_DSS_COLOR_ARGB16:
1558 case OMAP_DSS_COLOR_ARGB32:
1559 case OMAP_DSS_COLOR_RGBA32:
1560 case OMAP_DSS_COLOR_RGBX32:
1561 if (cpu_is_omap24xx())
1562 return -EINVAL;
1563 /* fall through */
1564 case OMAP_DSS_COLOR_RGB12U:
1565 case OMAP_DSS_COLOR_RGB16:
1566 case OMAP_DSS_COLOR_RGB24P:
1567 case OMAP_DSS_COLOR_RGB24U:
1568 break;
1569
1570 default:
1571 return -EINVAL;
1572 }
1573 } else {
1574 /* video plane */
1575
1576 unsigned long fclk = 0;
1577
1578 if (out_width < width / maxdownscale ||
1579 out_width > width * 8)
1580 return -EINVAL;
1581
1582 if (out_height < height / maxdownscale ||
1583 out_height > height * 8)
1584 return -EINVAL;
1585
1586 switch (color_mode) {
1587 case OMAP_DSS_COLOR_RGBX32:
1588 case OMAP_DSS_COLOR_RGB12U:
1589 if (cpu_is_omap24xx())
1590 return -EINVAL;
1591 /* fall through */
1592 case OMAP_DSS_COLOR_RGB16:
1593 case OMAP_DSS_COLOR_RGB24P:
1594 case OMAP_DSS_COLOR_RGB24U:
1595 break;
1596
1597 case OMAP_DSS_COLOR_ARGB16:
1598 case OMAP_DSS_COLOR_ARGB32:
1599 case OMAP_DSS_COLOR_RGBA32:
1600 if (cpu_is_omap24xx())
1601 return -EINVAL;
1602 if (plane == OMAP_DSS_VIDEO1)
1603 return -EINVAL;
1604 break;
1605
1606 case OMAP_DSS_COLOR_YUV2:
1607 case OMAP_DSS_COLOR_UYVY:
1608 cconv = 1;
1609 break;
1610
1611 default:
1612 return -EINVAL;
1613 }
1614
1615 /* Must use 5-tap filter? */
1616 five_taps = height > out_height * 2;
1617
1618 if (!five_taps) {
1619 fclk = calc_fclk(width, height,
1620 out_width, out_height);
1621
1622 /* Try 5-tap filter if 3-tap fclk is too high */
1623 if (cpu_is_omap34xx() && height > out_height &&
1624 fclk > dispc_fclk_rate())
1625 five_taps = true;
1626 }
1627
1628 if (width > (2048 >> five_taps)) {
1629 DSSERR("failed to set up scaling, fclk too low\n");
1630 return -EINVAL;
1631 }
1632
1633 if (five_taps)
1634 fclk = calc_fclk_five_taps(width, height,
1635 out_width, out_height, color_mode);
1636
1637 DSSDBG("required fclk rate = %lu Hz\n", fclk);
1638 DSSDBG("current fclk rate = %lu Hz\n", dispc_fclk_rate());
1639
1640 if (!fclk || fclk > dispc_fclk_rate()) {
1641 DSSERR("failed to set up scaling, "
1642 "required fclk rate = %lu Hz, "
1643 "current fclk rate = %lu Hz\n",
1644 fclk, dispc_fclk_rate());
1645 return -EINVAL;
1646 }
1647 }
1648
1649 if (ilace && !fieldmode) {
1650 /*
1651 * when downscaling the bottom field may have to start several
1652 * source lines below the top field. Unfortunately ACCUI
1653 * registers will only hold the fractional part of the offset
1654 * so the integer part must be added to the base address of the
1655 * bottom field.
1656 */
1657 if (!height || height == out_height)
1658 field_offset = 0;
1659 else
1660 field_offset = height / out_height / 2;
1661 }
1662
1663 /* Fields are independent but interleaved in memory. */
1664 if (fieldmode)
1665 field_offset = 1;
1666
1667 if (rotation_type == OMAP_DSS_ROT_DMA)
1668 calc_dma_rotation_offset(rotation, mirror,
1669 screen_width, width, frame_height, color_mode,
1670 fieldmode, field_offset,
1671 &offset0, &offset1, &row_inc, &pix_inc);
1672 else
1673 calc_vrfb_rotation_offset(rotation, mirror,
1674 screen_width, width, frame_height, color_mode,
1675 fieldmode, field_offset,
1676 &offset0, &offset1, &row_inc, &pix_inc);
1677
1678 DSSDBG("offset0 %u, offset1 %u, row_inc %d, pix_inc %d\n",
1679 offset0, offset1, row_inc, pix_inc);
1680
1681 _dispc_set_color_mode(plane, color_mode);
1682
1683 _dispc_set_plane_ba0(plane, paddr + offset0);
1684 _dispc_set_plane_ba1(plane, paddr + offset1);
1685
1686 _dispc_set_row_inc(plane, row_inc);
1687 _dispc_set_pix_inc(plane, pix_inc);
1688
1689 DSSDBG("%d,%d %dx%d -> %dx%d\n", pos_x, pos_y, width, height,
1690 out_width, out_height);
1691
1692 _dispc_set_plane_pos(plane, pos_x, pos_y);
1693
1694 _dispc_set_pic_size(plane, width, height);
1695
1696 if (plane != OMAP_DSS_GFX) {
1697 _dispc_set_scaling(plane, width, height,
1698 out_width, out_height,
1699 ilace, five_taps, fieldmode);
1700 _dispc_set_vid_size(plane, out_width, out_height);
1701 _dispc_set_vid_color_conv(plane, cconv);
1702 }
1703
1704 _dispc_set_rotation_attrs(plane, rotation, mirror, color_mode);
1705
1706 if (plane != OMAP_DSS_VIDEO1)
1707 _dispc_setup_global_alpha(plane, global_alpha);
1708
1709 return 0;
1710 }
1711
1712 static void _dispc_enable_plane(enum omap_plane plane, bool enable)
1713 {
1714 REG_FLD_MOD(dispc_reg_att[plane], enable ? 1 : 0, 0, 0);
1715 }
1716
1717 static void dispc_disable_isr(void *data, u32 mask)
1718 {
1719 struct completion *compl = data;
1720 complete(compl);
1721 }
1722
1723 static void _enable_lcd_out(bool enable)
1724 {
1725 REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 0, 0);
1726 }
1727
1728 void dispc_enable_lcd_out(bool enable)
1729 {
1730 struct completion frame_done_completion;
1731 bool is_on;
1732 int r;
1733
1734 enable_clocks(1);
1735
1736 /* When we disable LCD output, we need to wait until frame is done.
1737 * Otherwise the DSS is still working, and turning off the clocks
1738 * prevents DSS from going to OFF mode */
1739 is_on = REG_GET(DISPC_CONTROL, 0, 0);
1740
1741 if (!enable && is_on) {
1742 init_completion(&frame_done_completion);
1743
1744 r = omap_dispc_register_isr(dispc_disable_isr,
1745 &frame_done_completion,
1746 DISPC_IRQ_FRAMEDONE);
1747
1748 if (r)
1749 DSSERR("failed to register FRAMEDONE isr\n");
1750 }
1751
1752 _enable_lcd_out(enable);
1753
1754 if (!enable && is_on) {
1755 if (!wait_for_completion_timeout(&frame_done_completion,
1756 msecs_to_jiffies(100)))
1757 DSSERR("timeout waiting for FRAME DONE\n");
1758
1759 r = omap_dispc_unregister_isr(dispc_disable_isr,
1760 &frame_done_completion,
1761 DISPC_IRQ_FRAMEDONE);
1762
1763 if (r)
1764 DSSERR("failed to unregister FRAMEDONE isr\n");
1765 }
1766
1767 enable_clocks(0);
1768 }
1769
1770 static void _enable_digit_out(bool enable)
1771 {
1772 REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 1, 1);
1773 }
1774
1775 void dispc_enable_digit_out(bool enable)
1776 {
1777 struct completion frame_done_completion;
1778 int r;
1779
1780 enable_clocks(1);
1781
1782 if (REG_GET(DISPC_CONTROL, 1, 1) == enable) {
1783 enable_clocks(0);
1784 return;
1785 }
1786
1787 if (enable) {
1788 unsigned long flags;
1789 /* When we enable digit output, we'll get an extra digit
1790 * sync lost interrupt, that we need to ignore */
1791 spin_lock_irqsave(&dispc.irq_lock, flags);
1792 dispc.irq_error_mask &= ~DISPC_IRQ_SYNC_LOST_DIGIT;
1793 _omap_dispc_set_irqs();
1794 spin_unlock_irqrestore(&dispc.irq_lock, flags);
1795 }
1796
1797 /* When we disable digit output, we need to wait until fields are done.
1798 * Otherwise the DSS is still working, and turning off the clocks
1799 * prevents DSS from going to OFF mode. And when enabling, we need to
1800 * wait for the extra sync losts */
1801 init_completion(&frame_done_completion);
1802
1803 r = omap_dispc_register_isr(dispc_disable_isr, &frame_done_completion,
1804 DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD);
1805 if (r)
1806 DSSERR("failed to register EVSYNC isr\n");
1807
1808 _enable_digit_out(enable);
1809
1810 /* XXX I understand from TRM that we should only wait for the
1811 * current field to complete. But it seems we have to wait
1812 * for both fields */
1813 if (!wait_for_completion_timeout(&frame_done_completion,
1814 msecs_to_jiffies(100)))
1815 DSSERR("timeout waiting for EVSYNC\n");
1816
1817 if (!wait_for_completion_timeout(&frame_done_completion,
1818 msecs_to_jiffies(100)))
1819 DSSERR("timeout waiting for EVSYNC\n");
1820
1821 r = omap_dispc_unregister_isr(dispc_disable_isr,
1822 &frame_done_completion,
1823 DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD);
1824 if (r)
1825 DSSERR("failed to unregister EVSYNC isr\n");
1826
1827 if (enable) {
1828 unsigned long flags;
1829 spin_lock_irqsave(&dispc.irq_lock, flags);
1830 dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR;
1831 dispc_write_reg(DISPC_IRQSTATUS, DISPC_IRQ_SYNC_LOST_DIGIT);
1832 _omap_dispc_set_irqs();
1833 spin_unlock_irqrestore(&dispc.irq_lock, flags);
1834 }
1835
1836 enable_clocks(0);
1837 }
1838
1839 void dispc_lcd_enable_signal_polarity(bool act_high)
1840 {
1841 enable_clocks(1);
1842 REG_FLD_MOD(DISPC_CONTROL, act_high ? 1 : 0, 29, 29);
1843 enable_clocks(0);
1844 }
1845
1846 void dispc_lcd_enable_signal(bool enable)
1847 {
1848 enable_clocks(1);
1849 REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 28, 28);
1850 enable_clocks(0);
1851 }
1852
1853 void dispc_pck_free_enable(bool enable)
1854 {
1855 enable_clocks(1);
1856 REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 27, 27);
1857 enable_clocks(0);
1858 }
1859
1860 void dispc_enable_fifohandcheck(bool enable)
1861 {
1862 enable_clocks(1);
1863 REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 16, 16);
1864 enable_clocks(0);
1865 }
1866
1867
1868 void dispc_set_lcd_display_type(enum omap_lcd_display_type type)
1869 {
1870 int mode;
1871
1872 switch (type) {
1873 case OMAP_DSS_LCD_DISPLAY_STN:
1874 mode = 0;
1875 break;
1876
1877 case OMAP_DSS_LCD_DISPLAY_TFT:
1878 mode = 1;
1879 break;
1880
1881 default:
1882 BUG();
1883 return;
1884 }
1885
1886 enable_clocks(1);
1887 REG_FLD_MOD(DISPC_CONTROL, mode, 3, 3);
1888 enable_clocks(0);
1889 }
1890
1891 void dispc_set_loadmode(enum omap_dss_load_mode mode)
1892 {
1893 enable_clocks(1);
1894 REG_FLD_MOD(DISPC_CONFIG, mode, 2, 1);
1895 enable_clocks(0);
1896 }
1897
1898
1899 void dispc_set_default_color(enum omap_channel channel, u32 color)
1900 {
1901 const struct dispc_reg def_reg[] = { DISPC_DEFAULT_COLOR0,
1902 DISPC_DEFAULT_COLOR1 };
1903
1904 enable_clocks(1);
1905 dispc_write_reg(def_reg[channel], color);
1906 enable_clocks(0);
1907 }
1908
1909 u32 dispc_get_default_color(enum omap_channel channel)
1910 {
1911 const struct dispc_reg def_reg[] = { DISPC_DEFAULT_COLOR0,
1912 DISPC_DEFAULT_COLOR1 };
1913 u32 l;
1914
1915 BUG_ON(channel != OMAP_DSS_CHANNEL_DIGIT &&
1916 channel != OMAP_DSS_CHANNEL_LCD);
1917
1918 enable_clocks(1);
1919 l = dispc_read_reg(def_reg[channel]);
1920 enable_clocks(0);
1921
1922 return l;
1923 }
1924
1925 void dispc_set_trans_key(enum omap_channel ch,
1926 enum omap_dss_trans_key_type type,
1927 u32 trans_key)
1928 {
1929 const struct dispc_reg tr_reg[] = {
1930 DISPC_TRANS_COLOR0, DISPC_TRANS_COLOR1 };
1931
1932 enable_clocks(1);
1933 if (ch == OMAP_DSS_CHANNEL_LCD)
1934 REG_FLD_MOD(DISPC_CONFIG, type, 11, 11);
1935 else /* OMAP_DSS_CHANNEL_DIGIT */
1936 REG_FLD_MOD(DISPC_CONFIG, type, 13, 13);
1937
1938 dispc_write_reg(tr_reg[ch], trans_key);
1939 enable_clocks(0);
1940 }
1941
1942 void dispc_get_trans_key(enum omap_channel ch,
1943 enum omap_dss_trans_key_type *type,
1944 u32 *trans_key)
1945 {
1946 const struct dispc_reg tr_reg[] = {
1947 DISPC_TRANS_COLOR0, DISPC_TRANS_COLOR1 };
1948
1949 enable_clocks(1);
1950 if (type) {
1951 if (ch == OMAP_DSS_CHANNEL_LCD)
1952 *type = REG_GET(DISPC_CONFIG, 11, 11);
1953 else if (ch == OMAP_DSS_CHANNEL_DIGIT)
1954 *type = REG_GET(DISPC_CONFIG, 13, 13);
1955 else
1956 BUG();
1957 }
1958
1959 if (trans_key)
1960 *trans_key = dispc_read_reg(tr_reg[ch]);
1961 enable_clocks(0);
1962 }
1963
1964 void dispc_enable_trans_key(enum omap_channel ch, bool enable)
1965 {
1966 enable_clocks(1);
1967 if (ch == OMAP_DSS_CHANNEL_LCD)
1968 REG_FLD_MOD(DISPC_CONFIG, enable, 10, 10);
1969 else /* OMAP_DSS_CHANNEL_DIGIT */
1970 REG_FLD_MOD(DISPC_CONFIG, enable, 12, 12);
1971 enable_clocks(0);
1972 }
1973 void dispc_enable_alpha_blending(enum omap_channel ch, bool enable)
1974 {
1975 if (cpu_is_omap24xx())
1976 return;
1977
1978 enable_clocks(1);
1979 if (ch == OMAP_DSS_CHANNEL_LCD)
1980 REG_FLD_MOD(DISPC_CONFIG, enable, 18, 18);
1981 else /* OMAP_DSS_CHANNEL_DIGIT */
1982 REG_FLD_MOD(DISPC_CONFIG, enable, 19, 19);
1983 enable_clocks(0);
1984 }
1985 bool dispc_alpha_blending_enabled(enum omap_channel ch)
1986 {
1987 bool enabled;
1988
1989 if (cpu_is_omap24xx())
1990 return false;
1991
1992 enable_clocks(1);
1993 if (ch == OMAP_DSS_CHANNEL_LCD)
1994 enabled = REG_GET(DISPC_CONFIG, 18, 18);
1995 else if (ch == OMAP_DSS_CHANNEL_DIGIT)
1996 enabled = REG_GET(DISPC_CONFIG, 18, 18);
1997 else
1998 BUG();
1999 enable_clocks(0);
2000
2001 return enabled;
2002
2003 }
2004
2005
2006 bool dispc_trans_key_enabled(enum omap_channel ch)
2007 {
2008 bool enabled;
2009
2010 enable_clocks(1);
2011 if (ch == OMAP_DSS_CHANNEL_LCD)
2012 enabled = REG_GET(DISPC_CONFIG, 10, 10);
2013 else if (ch == OMAP_DSS_CHANNEL_DIGIT)
2014 enabled = REG_GET(DISPC_CONFIG, 12, 12);
2015 else
2016 BUG();
2017 enable_clocks(0);
2018
2019 return enabled;
2020 }
2021
2022
2023 void dispc_set_tft_data_lines(u8 data_lines)
2024 {
2025 int code;
2026
2027 switch (data_lines) {
2028 case 12:
2029 code = 0;
2030 break;
2031 case 16:
2032 code = 1;
2033 break;
2034 case 18:
2035 code = 2;
2036 break;
2037 case 24:
2038 code = 3;
2039 break;
2040 default:
2041 BUG();
2042 return;
2043 }
2044
2045 enable_clocks(1);
2046 REG_FLD_MOD(DISPC_CONTROL, code, 9, 8);
2047 enable_clocks(0);
2048 }
2049
2050 void dispc_set_parallel_interface_mode(enum omap_parallel_interface_mode mode)
2051 {
2052 u32 l;
2053 int stallmode;
2054 int gpout0 = 1;
2055 int gpout1;
2056
2057 switch (mode) {
2058 case OMAP_DSS_PARALLELMODE_BYPASS:
2059 stallmode = 0;
2060 gpout1 = 1;
2061 break;
2062
2063 case OMAP_DSS_PARALLELMODE_RFBI:
2064 stallmode = 1;
2065 gpout1 = 0;
2066 break;
2067
2068 case OMAP_DSS_PARALLELMODE_DSI:
2069 stallmode = 1;
2070 gpout1 = 1;
2071 break;
2072
2073 default:
2074 BUG();
2075 return;
2076 }
2077
2078 enable_clocks(1);
2079
2080 l = dispc_read_reg(DISPC_CONTROL);
2081
2082 l = FLD_MOD(l, stallmode, 11, 11);
2083 l = FLD_MOD(l, gpout0, 15, 15);
2084 l = FLD_MOD(l, gpout1, 16, 16);
2085
2086 dispc_write_reg(DISPC_CONTROL, l);
2087
2088 enable_clocks(0);
2089 }
2090
2091 static bool _dispc_lcd_timings_ok(int hsw, int hfp, int hbp,
2092 int vsw, int vfp, int vbp)
2093 {
2094 if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) {
2095 if (hsw < 1 || hsw > 64 ||
2096 hfp < 1 || hfp > 256 ||
2097 hbp < 1 || hbp > 256 ||
2098 vsw < 1 || vsw > 64 ||
2099 vfp < 0 || vfp > 255 ||
2100 vbp < 0 || vbp > 255)
2101 return false;
2102 } else {
2103 if (hsw < 1 || hsw > 256 ||
2104 hfp < 1 || hfp > 4096 ||
2105 hbp < 1 || hbp > 4096 ||
2106 vsw < 1 || vsw > 256 ||
2107 vfp < 0 || vfp > 4095 ||
2108 vbp < 0 || vbp > 4095)
2109 return false;
2110 }
2111
2112 return true;
2113 }
2114
2115 bool dispc_lcd_timings_ok(struct omap_video_timings *timings)
2116 {
2117 return _dispc_lcd_timings_ok(timings->hsw, timings->hfp,
2118 timings->hbp, timings->vsw,
2119 timings->vfp, timings->vbp);
2120 }
2121
2122 static void _dispc_set_lcd_timings(int hsw, int hfp, int hbp,
2123 int vsw, int vfp, int vbp)
2124 {
2125 u32 timing_h, timing_v;
2126
2127 if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) {
2128 timing_h = FLD_VAL(hsw-1, 5, 0) | FLD_VAL(hfp-1, 15, 8) |
2129 FLD_VAL(hbp-1, 27, 20);
2130
2131 timing_v = FLD_VAL(vsw-1, 5, 0) | FLD_VAL(vfp, 15, 8) |
2132 FLD_VAL(vbp, 27, 20);
2133 } else {
2134 timing_h = FLD_VAL(hsw-1, 7, 0) | FLD_VAL(hfp-1, 19, 8) |
2135 FLD_VAL(hbp-1, 31, 20);
2136
2137 timing_v = FLD_VAL(vsw-1, 7, 0) | FLD_VAL(vfp, 19, 8) |
2138 FLD_VAL(vbp, 31, 20);
2139 }
2140
2141 enable_clocks(1);
2142 dispc_write_reg(DISPC_TIMING_H, timing_h);
2143 dispc_write_reg(DISPC_TIMING_V, timing_v);
2144 enable_clocks(0);
2145 }
2146
2147 /* change name to mode? */
2148 void dispc_set_lcd_timings(struct omap_video_timings *timings)
2149 {
2150 unsigned xtot, ytot;
2151 unsigned long ht, vt;
2152
2153 if (!_dispc_lcd_timings_ok(timings->hsw, timings->hfp,
2154 timings->hbp, timings->vsw,
2155 timings->vfp, timings->vbp))
2156 BUG();
2157
2158 _dispc_set_lcd_timings(timings->hsw, timings->hfp, timings->hbp,
2159 timings->vsw, timings->vfp, timings->vbp);
2160
2161 dispc_set_lcd_size(timings->x_res, timings->y_res);
2162
2163 xtot = timings->x_res + timings->hfp + timings->hsw + timings->hbp;
2164 ytot = timings->y_res + timings->vfp + timings->vsw + timings->vbp;
2165
2166 ht = (timings->pixel_clock * 1000) / xtot;
2167 vt = (timings->pixel_clock * 1000) / xtot / ytot;
2168
2169 DSSDBG("xres %u yres %u\n", timings->x_res, timings->y_res);
2170 DSSDBG("pck %u\n", timings->pixel_clock);
2171 DSSDBG("hsw %d hfp %d hbp %d vsw %d vfp %d vbp %d\n",
2172 timings->hsw, timings->hfp, timings->hbp,
2173 timings->vsw, timings->vfp, timings->vbp);
2174
2175 DSSDBG("hsync %luHz, vsync %luHz\n", ht, vt);
2176 }
2177
2178 static void dispc_set_lcd_divisor(u16 lck_div, u16 pck_div)
2179 {
2180 BUG_ON(lck_div < 1);
2181 BUG_ON(pck_div < 2);
2182
2183 enable_clocks(1);
2184 dispc_write_reg(DISPC_DIVISOR,
2185 FLD_VAL(lck_div, 23, 16) | FLD_VAL(pck_div, 7, 0));
2186 enable_clocks(0);
2187 }
2188
2189 static void dispc_get_lcd_divisor(int *lck_div, int *pck_div)
2190 {
2191 u32 l;
2192 l = dispc_read_reg(DISPC_DIVISOR);
2193 *lck_div = FLD_GET(l, 23, 16);
2194 *pck_div = FLD_GET(l, 7, 0);
2195 }
2196
2197 unsigned long dispc_fclk_rate(void)
2198 {
2199 unsigned long r = 0;
2200
2201 if (dss_get_dispc_clk_source() == 0)
2202 r = dss_clk_get_rate(DSS_CLK_FCK1);
2203 else
2204 #ifdef CONFIG_OMAP2_DSS_DSI
2205 r = dsi_get_dsi1_pll_rate();
2206 #else
2207 BUG();
2208 #endif
2209 return r;
2210 }
2211
2212 unsigned long dispc_lclk_rate(void)
2213 {
2214 int lcd;
2215 unsigned long r;
2216 u32 l;
2217
2218 l = dispc_read_reg(DISPC_DIVISOR);
2219
2220 lcd = FLD_GET(l, 23, 16);
2221
2222 r = dispc_fclk_rate();
2223
2224 return r / lcd;
2225 }
2226
2227 unsigned long dispc_pclk_rate(void)
2228 {
2229 int lcd, pcd;
2230 unsigned long r;
2231 u32 l;
2232
2233 l = dispc_read_reg(DISPC_DIVISOR);
2234
2235 lcd = FLD_GET(l, 23, 16);
2236 pcd = FLD_GET(l, 7, 0);
2237
2238 r = dispc_fclk_rate();
2239
2240 return r / lcd / pcd;
2241 }
2242
2243 void dispc_dump_clocks(struct seq_file *s)
2244 {
2245 int lcd, pcd;
2246
2247 enable_clocks(1);
2248
2249 dispc_get_lcd_divisor(&lcd, &pcd);
2250
2251 seq_printf(s, "- DISPC -\n");
2252
2253 seq_printf(s, "dispc fclk source = %s\n",
2254 dss_get_dispc_clk_source() == 0 ?
2255 "dss1_alwon_fclk" : "dsi1_pll_fclk");
2256
2257 seq_printf(s, "fck\t\t%-16lu\n", dispc_fclk_rate());
2258 seq_printf(s, "lck\t\t%-16lulck div\t%u\n", dispc_lclk_rate(), lcd);
2259 seq_printf(s, "pck\t\t%-16lupck div\t%u\n", dispc_pclk_rate(), pcd);
2260
2261 enable_clocks(0);
2262 }
2263
2264 #ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
2265 void dispc_dump_irqs(struct seq_file *s)
2266 {
2267 unsigned long flags;
2268 struct dispc_irq_stats stats;
2269
2270 spin_lock_irqsave(&dispc.irq_stats_lock, flags);
2271
2272 stats = dispc.irq_stats;
2273 memset(&dispc.irq_stats, 0, sizeof(dispc.irq_stats));
2274 dispc.irq_stats.last_reset = jiffies;
2275
2276 spin_unlock_irqrestore(&dispc.irq_stats_lock, flags);
2277
2278 seq_printf(s, "period %u ms\n",
2279 jiffies_to_msecs(jiffies - stats.last_reset));
2280
2281 seq_printf(s, "irqs %d\n", stats.irq_count);
2282 #define PIS(x) \
2283 seq_printf(s, "%-20s %10d\n", #x, stats.irqs[ffs(DISPC_IRQ_##x)-1]);
2284
2285 PIS(FRAMEDONE);
2286 PIS(VSYNC);
2287 PIS(EVSYNC_EVEN);
2288 PIS(EVSYNC_ODD);
2289 PIS(ACBIAS_COUNT_STAT);
2290 PIS(PROG_LINE_NUM);
2291 PIS(GFX_FIFO_UNDERFLOW);
2292 PIS(GFX_END_WIN);
2293 PIS(PAL_GAMMA_MASK);
2294 PIS(OCP_ERR);
2295 PIS(VID1_FIFO_UNDERFLOW);
2296 PIS(VID1_END_WIN);
2297 PIS(VID2_FIFO_UNDERFLOW);
2298 PIS(VID2_END_WIN);
2299 PIS(SYNC_LOST);
2300 PIS(SYNC_LOST_DIGIT);
2301 PIS(WAKEUP);
2302 #undef PIS
2303 }
2304 #endif
2305
2306 void dispc_dump_regs(struct seq_file *s)
2307 {
2308 #define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dispc_read_reg(r))
2309
2310 dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
2311
2312 DUMPREG(DISPC_REVISION);
2313 DUMPREG(DISPC_SYSCONFIG);
2314 DUMPREG(DISPC_SYSSTATUS);
2315 DUMPREG(DISPC_IRQSTATUS);
2316 DUMPREG(DISPC_IRQENABLE);
2317 DUMPREG(DISPC_CONTROL);
2318 DUMPREG(DISPC_CONFIG);
2319 DUMPREG(DISPC_CAPABLE);
2320 DUMPREG(DISPC_DEFAULT_COLOR0);
2321 DUMPREG(DISPC_DEFAULT_COLOR1);
2322 DUMPREG(DISPC_TRANS_COLOR0);
2323 DUMPREG(DISPC_TRANS_COLOR1);
2324 DUMPREG(DISPC_LINE_STATUS);
2325 DUMPREG(DISPC_LINE_NUMBER);
2326 DUMPREG(DISPC_TIMING_H);
2327 DUMPREG(DISPC_TIMING_V);
2328 DUMPREG(DISPC_POL_FREQ);
2329 DUMPREG(DISPC_DIVISOR);
2330 DUMPREG(DISPC_GLOBAL_ALPHA);
2331 DUMPREG(DISPC_SIZE_DIG);
2332 DUMPREG(DISPC_SIZE_LCD);
2333
2334 DUMPREG(DISPC_GFX_BA0);
2335 DUMPREG(DISPC_GFX_BA1);
2336 DUMPREG(DISPC_GFX_POSITION);
2337 DUMPREG(DISPC_GFX_SIZE);
2338 DUMPREG(DISPC_GFX_ATTRIBUTES);
2339 DUMPREG(DISPC_GFX_FIFO_THRESHOLD);
2340 DUMPREG(DISPC_GFX_FIFO_SIZE_STATUS);
2341 DUMPREG(DISPC_GFX_ROW_INC);
2342 DUMPREG(DISPC_GFX_PIXEL_INC);
2343 DUMPREG(DISPC_GFX_WINDOW_SKIP);
2344 DUMPREG(DISPC_GFX_TABLE_BA);
2345
2346 DUMPREG(DISPC_DATA_CYCLE1);
2347 DUMPREG(DISPC_DATA_CYCLE2);
2348 DUMPREG(DISPC_DATA_CYCLE3);
2349
2350 DUMPREG(DISPC_CPR_COEF_R);
2351 DUMPREG(DISPC_CPR_COEF_G);
2352 DUMPREG(DISPC_CPR_COEF_B);
2353
2354 DUMPREG(DISPC_GFX_PRELOAD);
2355
2356 DUMPREG(DISPC_VID_BA0(0));
2357 DUMPREG(DISPC_VID_BA1(0));
2358 DUMPREG(DISPC_VID_POSITION(0));
2359 DUMPREG(DISPC_VID_SIZE(0));
2360 DUMPREG(DISPC_VID_ATTRIBUTES(0));
2361 DUMPREG(DISPC_VID_FIFO_THRESHOLD(0));
2362 DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(0));
2363 DUMPREG(DISPC_VID_ROW_INC(0));
2364 DUMPREG(DISPC_VID_PIXEL_INC(0));
2365 DUMPREG(DISPC_VID_FIR(0));
2366 DUMPREG(DISPC_VID_PICTURE_SIZE(0));
2367 DUMPREG(DISPC_VID_ACCU0(0));
2368 DUMPREG(DISPC_VID_ACCU1(0));
2369
2370 DUMPREG(DISPC_VID_BA0(1));
2371 DUMPREG(DISPC_VID_BA1(1));
2372 DUMPREG(DISPC_VID_POSITION(1));
2373 DUMPREG(DISPC_VID_SIZE(1));
2374 DUMPREG(DISPC_VID_ATTRIBUTES(1));
2375 DUMPREG(DISPC_VID_FIFO_THRESHOLD(1));
2376 DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(1));
2377 DUMPREG(DISPC_VID_ROW_INC(1));
2378 DUMPREG(DISPC_VID_PIXEL_INC(1));
2379 DUMPREG(DISPC_VID_FIR(1));
2380 DUMPREG(DISPC_VID_PICTURE_SIZE(1));
2381 DUMPREG(DISPC_VID_ACCU0(1));
2382 DUMPREG(DISPC_VID_ACCU1(1));
2383
2384 DUMPREG(DISPC_VID_FIR_COEF_H(0, 0));
2385 DUMPREG(DISPC_VID_FIR_COEF_H(0, 1));
2386 DUMPREG(DISPC_VID_FIR_COEF_H(0, 2));
2387 DUMPREG(DISPC_VID_FIR_COEF_H(0, 3));
2388 DUMPREG(DISPC_VID_FIR_COEF_H(0, 4));
2389 DUMPREG(DISPC_VID_FIR_COEF_H(0, 5));
2390 DUMPREG(DISPC_VID_FIR_COEF_H(0, 6));
2391 DUMPREG(DISPC_VID_FIR_COEF_H(0, 7));
2392 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 0));
2393 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 1));
2394 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 2));
2395 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 3));
2396 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 4));
2397 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 5));
2398 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 6));
2399 DUMPREG(DISPC_VID_FIR_COEF_HV(0, 7));
2400 DUMPREG(DISPC_VID_CONV_COEF(0, 0));
2401 DUMPREG(DISPC_VID_CONV_COEF(0, 1));
2402 DUMPREG(DISPC_VID_CONV_COEF(0, 2));
2403 DUMPREG(DISPC_VID_CONV_COEF(0, 3));
2404 DUMPREG(DISPC_VID_CONV_COEF(0, 4));
2405 DUMPREG(DISPC_VID_FIR_COEF_V(0, 0));
2406 DUMPREG(DISPC_VID_FIR_COEF_V(0, 1));
2407 DUMPREG(DISPC_VID_FIR_COEF_V(0, 2));
2408 DUMPREG(DISPC_VID_FIR_COEF_V(0, 3));
2409 DUMPREG(DISPC_VID_FIR_COEF_V(0, 4));
2410 DUMPREG(DISPC_VID_FIR_COEF_V(0, 5));
2411 DUMPREG(DISPC_VID_FIR_COEF_V(0, 6));
2412 DUMPREG(DISPC_VID_FIR_COEF_V(0, 7));
2413
2414 DUMPREG(DISPC_VID_FIR_COEF_H(1, 0));
2415 DUMPREG(DISPC_VID_FIR_COEF_H(1, 1));
2416 DUMPREG(DISPC_VID_FIR_COEF_H(1, 2));
2417 DUMPREG(DISPC_VID_FIR_COEF_H(1, 3));
2418 DUMPREG(DISPC_VID_FIR_COEF_H(1, 4));
2419 DUMPREG(DISPC_VID_FIR_COEF_H(1, 5));
2420 DUMPREG(DISPC_VID_FIR_COEF_H(1, 6));
2421 DUMPREG(DISPC_VID_FIR_COEF_H(1, 7));
2422 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 0));
2423 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 1));
2424 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 2));
2425 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 3));
2426 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 4));
2427 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 5));
2428 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 6));
2429 DUMPREG(DISPC_VID_FIR_COEF_HV(1, 7));
2430 DUMPREG(DISPC_VID_CONV_COEF(1, 0));
2431 DUMPREG(DISPC_VID_CONV_COEF(1, 1));
2432 DUMPREG(DISPC_VID_CONV_COEF(1, 2));
2433 DUMPREG(DISPC_VID_CONV_COEF(1, 3));
2434 DUMPREG(DISPC_VID_CONV_COEF(1, 4));
2435 DUMPREG(DISPC_VID_FIR_COEF_V(1, 0));
2436 DUMPREG(DISPC_VID_FIR_COEF_V(1, 1));
2437 DUMPREG(DISPC_VID_FIR_COEF_V(1, 2));
2438 DUMPREG(DISPC_VID_FIR_COEF_V(1, 3));
2439 DUMPREG(DISPC_VID_FIR_COEF_V(1, 4));
2440 DUMPREG(DISPC_VID_FIR_COEF_V(1, 5));
2441 DUMPREG(DISPC_VID_FIR_COEF_V(1, 6));
2442 DUMPREG(DISPC_VID_FIR_COEF_V(1, 7));
2443
2444 DUMPREG(DISPC_VID_PRELOAD(0));
2445 DUMPREG(DISPC_VID_PRELOAD(1));
2446
2447 dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
2448 #undef DUMPREG
2449 }
2450
2451 static void _dispc_set_pol_freq(bool onoff, bool rf, bool ieo, bool ipc,
2452 bool ihs, bool ivs, u8 acbi, u8 acb)
2453 {
2454 u32 l = 0;
2455
2456 DSSDBG("onoff %d rf %d ieo %d ipc %d ihs %d ivs %d acbi %d acb %d\n",
2457 onoff, rf, ieo, ipc, ihs, ivs, acbi, acb);
2458
2459 l |= FLD_VAL(onoff, 17, 17);
2460 l |= FLD_VAL(rf, 16, 16);
2461 l |= FLD_VAL(ieo, 15, 15);
2462 l |= FLD_VAL(ipc, 14, 14);
2463 l |= FLD_VAL(ihs, 13, 13);
2464 l |= FLD_VAL(ivs, 12, 12);
2465 l |= FLD_VAL(acbi, 11, 8);
2466 l |= FLD_VAL(acb, 7, 0);
2467
2468 enable_clocks(1);
2469 dispc_write_reg(DISPC_POL_FREQ, l);
2470 enable_clocks(0);
2471 }
2472
2473 void dispc_set_pol_freq(enum omap_panel_config config, u8 acbi, u8 acb)
2474 {
2475 _dispc_set_pol_freq((config & OMAP_DSS_LCD_ONOFF) != 0,
2476 (config & OMAP_DSS_LCD_RF) != 0,
2477 (config & OMAP_DSS_LCD_IEO) != 0,
2478 (config & OMAP_DSS_LCD_IPC) != 0,
2479 (config & OMAP_DSS_LCD_IHS) != 0,
2480 (config & OMAP_DSS_LCD_IVS) != 0,
2481 acbi, acb);
2482 }
2483
2484 /* with fck as input clock rate, find dispc dividers that produce req_pck */
2485 void dispc_find_clk_divs(bool is_tft, unsigned long req_pck, unsigned long fck,
2486 struct dispc_clock_info *cinfo)
2487 {
2488 u16 pcd_min = is_tft ? 2 : 3;
2489 unsigned long best_pck;
2490 u16 best_ld, cur_ld;
2491 u16 best_pd, cur_pd;
2492
2493 best_pck = 0;
2494 best_ld = 0;
2495 best_pd = 0;
2496
2497 for (cur_ld = 1; cur_ld <= 255; ++cur_ld) {
2498 unsigned long lck = fck / cur_ld;
2499
2500 for (cur_pd = pcd_min; cur_pd <= 255; ++cur_pd) {
2501 unsigned long pck = lck / cur_pd;
2502 long old_delta = abs(best_pck - req_pck);
2503 long new_delta = abs(pck - req_pck);
2504
2505 if (best_pck == 0 || new_delta < old_delta) {
2506 best_pck = pck;
2507 best_ld = cur_ld;
2508 best_pd = cur_pd;
2509
2510 if (pck == req_pck)
2511 goto found;
2512 }
2513
2514 if (pck < req_pck)
2515 break;
2516 }
2517
2518 if (lck / pcd_min < req_pck)
2519 break;
2520 }
2521
2522 found:
2523 cinfo->lck_div = best_ld;
2524 cinfo->pck_div = best_pd;
2525 cinfo->lck = fck / cinfo->lck_div;
2526 cinfo->pck = cinfo->lck / cinfo->pck_div;
2527 }
2528
2529 /* calculate clock rates using dividers in cinfo */
2530 int dispc_calc_clock_rates(unsigned long dispc_fclk_rate,
2531 struct dispc_clock_info *cinfo)
2532 {
2533 if (cinfo->lck_div > 255 || cinfo->lck_div == 0)
2534 return -EINVAL;
2535 if (cinfo->pck_div < 2 || cinfo->pck_div > 255)
2536 return -EINVAL;
2537
2538 cinfo->lck = dispc_fclk_rate / cinfo->lck_div;
2539 cinfo->pck = cinfo->lck / cinfo->pck_div;
2540
2541 return 0;
2542 }
2543
2544 int dispc_set_clock_div(struct dispc_clock_info *cinfo)
2545 {
2546 DSSDBG("lck = %lu (%u)\n", cinfo->lck, cinfo->lck_div);
2547 DSSDBG("pck = %lu (%u)\n", cinfo->pck, cinfo->pck_div);
2548
2549 dispc_set_lcd_divisor(cinfo->lck_div, cinfo->pck_div);
2550
2551 return 0;
2552 }
2553
2554 int dispc_get_clock_div(struct dispc_clock_info *cinfo)
2555 {
2556 unsigned long fck;
2557
2558 fck = dispc_fclk_rate();
2559
2560 cinfo->lck_div = REG_GET(DISPC_DIVISOR, 23, 16);
2561 cinfo->pck_div = REG_GET(DISPC_DIVISOR, 7, 0);
2562
2563 cinfo->lck = fck / cinfo->lck_div;
2564 cinfo->pck = cinfo->lck / cinfo->pck_div;
2565
2566 return 0;
2567 }
2568
2569 /* dispc.irq_lock has to be locked by the caller */
2570 static void _omap_dispc_set_irqs(void)
2571 {
2572 u32 mask;
2573 u32 old_mask;
2574 int i;
2575 struct omap_dispc_isr_data *isr_data;
2576
2577 mask = dispc.irq_error_mask;
2578
2579 for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
2580 isr_data = &dispc.registered_isr[i];
2581
2582 if (isr_data->isr == NULL)
2583 continue;
2584
2585 mask |= isr_data->mask;
2586 }
2587
2588 enable_clocks(1);
2589
2590 old_mask = dispc_read_reg(DISPC_IRQENABLE);
2591 /* clear the irqstatus for newly enabled irqs */
2592 dispc_write_reg(DISPC_IRQSTATUS, (mask ^ old_mask) & mask);
2593
2594 dispc_write_reg(DISPC_IRQENABLE, mask);
2595
2596 enable_clocks(0);
2597 }
2598
2599 int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask)
2600 {
2601 int i;
2602 int ret;
2603 unsigned long flags;
2604 struct omap_dispc_isr_data *isr_data;
2605
2606 if (isr == NULL)
2607 return -EINVAL;
2608
2609 spin_lock_irqsave(&dispc.irq_lock, flags);
2610
2611 /* check for duplicate entry */
2612 for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
2613 isr_data = &dispc.registered_isr[i];
2614 if (isr_data->isr == isr && isr_data->arg == arg &&
2615 isr_data->mask == mask) {
2616 ret = -EINVAL;
2617 goto err;
2618 }
2619 }
2620
2621 isr_data = NULL;
2622 ret = -EBUSY;
2623
2624 for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
2625 isr_data = &dispc.registered_isr[i];
2626
2627 if (isr_data->isr != NULL)
2628 continue;
2629
2630 isr_data->isr = isr;
2631 isr_data->arg = arg;
2632 isr_data->mask = mask;
2633 ret = 0;
2634
2635 break;
2636 }
2637
2638 _omap_dispc_set_irqs();
2639
2640 spin_unlock_irqrestore(&dispc.irq_lock, flags);
2641
2642 return 0;
2643 err:
2644 spin_unlock_irqrestore(&dispc.irq_lock, flags);
2645
2646 return ret;
2647 }
2648 EXPORT_SYMBOL(omap_dispc_register_isr);
2649
2650 int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask)
2651 {
2652 int i;
2653 unsigned long flags;
2654 int ret = -EINVAL;
2655 struct omap_dispc_isr_data *isr_data;
2656
2657 spin_lock_irqsave(&dispc.irq_lock, flags);
2658
2659 for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
2660 isr_data = &dispc.registered_isr[i];
2661 if (isr_data->isr != isr || isr_data->arg != arg ||
2662 isr_data->mask != mask)
2663 continue;
2664
2665 /* found the correct isr */
2666
2667 isr_data->isr = NULL;
2668 isr_data->arg = NULL;
2669 isr_data->mask = 0;
2670
2671 ret = 0;
2672 break;
2673 }
2674
2675 if (ret == 0)
2676 _omap_dispc_set_irqs();
2677
2678 spin_unlock_irqrestore(&dispc.irq_lock, flags);
2679
2680 return ret;
2681 }
2682 EXPORT_SYMBOL(omap_dispc_unregister_isr);
2683
2684 #ifdef DEBUG
2685 static void print_irq_status(u32 status)
2686 {
2687 if ((status & dispc.irq_error_mask) == 0)
2688 return;
2689
2690 printk(KERN_DEBUG "DISPC IRQ: 0x%x: ", status);
2691
2692 #define PIS(x) \
2693 if (status & DISPC_IRQ_##x) \
2694 printk(#x " ");
2695 PIS(GFX_FIFO_UNDERFLOW);
2696 PIS(OCP_ERR);
2697 PIS(VID1_FIFO_UNDERFLOW);
2698 PIS(VID2_FIFO_UNDERFLOW);
2699 PIS(SYNC_LOST);
2700 PIS(SYNC_LOST_DIGIT);
2701 #undef PIS
2702
2703 printk("\n");
2704 }
2705 #endif
2706
2707 /* Called from dss.c. Note that we don't touch clocks here,
2708 * but we presume they are on because we got an IRQ. However,
2709 * an irq handler may turn the clocks off, so we may not have
2710 * clock later in the function. */
2711 void dispc_irq_handler(void)
2712 {
2713 int i;
2714 u32 irqstatus;
2715 u32 handledirqs = 0;
2716 u32 unhandled_errors;
2717 struct omap_dispc_isr_data *isr_data;
2718 struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS];
2719
2720 spin_lock(&dispc.irq_lock);
2721
2722 irqstatus = dispc_read_reg(DISPC_IRQSTATUS);
2723
2724 #ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
2725 spin_lock(&dispc.irq_stats_lock);
2726 dispc.irq_stats.irq_count++;
2727 dss_collect_irq_stats(irqstatus, dispc.irq_stats.irqs);
2728 spin_unlock(&dispc.irq_stats_lock);
2729 #endif
2730
2731 #ifdef DEBUG
2732 if (dss_debug)
2733 print_irq_status(irqstatus);
2734 #endif
2735 /* Ack the interrupt. Do it here before clocks are possibly turned
2736 * off */
2737 dispc_write_reg(DISPC_IRQSTATUS, irqstatus);
2738 /* flush posted write */
2739 dispc_read_reg(DISPC_IRQSTATUS);
2740
2741 /* make a copy and unlock, so that isrs can unregister
2742 * themselves */
2743 memcpy(registered_isr, dispc.registered_isr,
2744 sizeof(registered_isr));
2745
2746 spin_unlock(&dispc.irq_lock);
2747
2748 for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
2749 isr_data = &registered_isr[i];
2750
2751 if (!isr_data->isr)
2752 continue;
2753
2754 if (isr_data->mask & irqstatus) {
2755 isr_data->isr(isr_data->arg, irqstatus);
2756 handledirqs |= isr_data->mask;
2757 }
2758 }
2759
2760 spin_lock(&dispc.irq_lock);
2761
2762 unhandled_errors = irqstatus & ~handledirqs & dispc.irq_error_mask;
2763
2764 if (unhandled_errors) {
2765 dispc.error_irqs |= unhandled_errors;
2766
2767 dispc.irq_error_mask &= ~unhandled_errors;
2768 _omap_dispc_set_irqs();
2769
2770 schedule_work(&dispc.error_work);
2771 }
2772
2773 spin_unlock(&dispc.irq_lock);
2774 }
2775
2776 static void dispc_error_worker(struct work_struct *work)
2777 {
2778 int i;
2779 u32 errors;
2780 unsigned long flags;
2781
2782 spin_lock_irqsave(&dispc.irq_lock, flags);
2783 errors = dispc.error_irqs;
2784 dispc.error_irqs = 0;
2785 spin_unlock_irqrestore(&dispc.irq_lock, flags);
2786
2787 if (errors & DISPC_IRQ_GFX_FIFO_UNDERFLOW) {
2788 DSSERR("GFX_FIFO_UNDERFLOW, disabling GFX\n");
2789 for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
2790 struct omap_overlay *ovl;
2791 ovl = omap_dss_get_overlay(i);
2792
2793 if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
2794 continue;
2795
2796 if (ovl->id == 0) {
2797 dispc_enable_plane(ovl->id, 0);
2798 dispc_go(ovl->manager->id);
2799 mdelay(50);
2800 break;
2801 }
2802 }
2803 }
2804
2805 if (errors & DISPC_IRQ_VID1_FIFO_UNDERFLOW) {
2806 DSSERR("VID1_FIFO_UNDERFLOW, disabling VID1\n");
2807 for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
2808 struct omap_overlay *ovl;
2809 ovl = omap_dss_get_overlay(i);
2810
2811 if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
2812 continue;
2813
2814 if (ovl->id == 1) {
2815 dispc_enable_plane(ovl->id, 0);
2816 dispc_go(ovl->manager->id);
2817 mdelay(50);
2818 break;
2819 }
2820 }
2821 }
2822
2823 if (errors & DISPC_IRQ_VID2_FIFO_UNDERFLOW) {
2824 DSSERR("VID2_FIFO_UNDERFLOW, disabling VID2\n");
2825 for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
2826 struct omap_overlay *ovl;
2827 ovl = omap_dss_get_overlay(i);
2828
2829 if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
2830 continue;
2831
2832 if (ovl->id == 2) {
2833 dispc_enable_plane(ovl->id, 0);
2834 dispc_go(ovl->manager->id);
2835 mdelay(50);
2836 break;
2837 }
2838 }
2839 }
2840
2841 if (errors & DISPC_IRQ_SYNC_LOST) {
2842 struct omap_overlay_manager *manager = NULL;
2843 bool enable = false;
2844
2845 DSSERR("SYNC_LOST, disabling LCD\n");
2846
2847 for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
2848 struct omap_overlay_manager *mgr;
2849 mgr = omap_dss_get_overlay_manager(i);
2850
2851 if (mgr->id == OMAP_DSS_CHANNEL_LCD) {
2852 manager = mgr;
2853 enable = mgr->device->state ==
2854 OMAP_DSS_DISPLAY_ACTIVE;
2855 mgr->device->disable(mgr->device);
2856 break;
2857 }
2858 }
2859
2860 if (manager) {
2861 for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
2862 struct omap_overlay *ovl;
2863 ovl = omap_dss_get_overlay(i);
2864
2865 if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
2866 continue;
2867
2868 if (ovl->id != 0 && ovl->manager == manager)
2869 dispc_enable_plane(ovl->id, 0);
2870 }
2871
2872 dispc_go(manager->id);
2873 mdelay(50);
2874 if (enable)
2875 manager->device->enable(manager->device);
2876 }
2877 }
2878
2879 if (errors & DISPC_IRQ_SYNC_LOST_DIGIT) {
2880 struct omap_overlay_manager *manager = NULL;
2881 bool enable = false;
2882
2883 DSSERR("SYNC_LOST_DIGIT, disabling TV\n");
2884
2885 for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
2886 struct omap_overlay_manager *mgr;
2887 mgr = omap_dss_get_overlay_manager(i);
2888
2889 if (mgr->id == OMAP_DSS_CHANNEL_DIGIT) {
2890 manager = mgr;
2891 enable = mgr->device->state ==
2892 OMAP_DSS_DISPLAY_ACTIVE;
2893 mgr->device->disable(mgr->device);
2894 break;
2895 }
2896 }
2897
2898 if (manager) {
2899 for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
2900 struct omap_overlay *ovl;
2901 ovl = omap_dss_get_overlay(i);
2902
2903 if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
2904 continue;
2905
2906 if (ovl->id != 0 && ovl->manager == manager)
2907 dispc_enable_plane(ovl->id, 0);
2908 }
2909
2910 dispc_go(manager->id);
2911 mdelay(50);
2912 if (enable)
2913 manager->device->enable(manager->device);
2914 }
2915 }
2916
2917 if (errors & DISPC_IRQ_OCP_ERR) {
2918 DSSERR("OCP_ERR\n");
2919 for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
2920 struct omap_overlay_manager *mgr;
2921 mgr = omap_dss_get_overlay_manager(i);
2922
2923 if (mgr->caps & OMAP_DSS_OVL_CAP_DISPC)
2924 mgr->device->disable(mgr->device);
2925 }
2926 }
2927
2928 spin_lock_irqsave(&dispc.irq_lock, flags);
2929 dispc.irq_error_mask |= errors;
2930 _omap_dispc_set_irqs();
2931 spin_unlock_irqrestore(&dispc.irq_lock, flags);
2932 }
2933
2934 int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout)
2935 {
2936 void dispc_irq_wait_handler(void *data, u32 mask)
2937 {
2938 complete((struct completion *)data);
2939 }
2940
2941 int r;
2942 DECLARE_COMPLETION_ONSTACK(completion);
2943
2944 r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion,
2945 irqmask);
2946
2947 if (r)
2948 return r;
2949
2950 timeout = wait_for_completion_timeout(&completion, timeout);
2951
2952 omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask);
2953
2954 if (timeout == 0)
2955 return -ETIMEDOUT;
2956
2957 if (timeout == -ERESTARTSYS)
2958 return -ERESTARTSYS;
2959
2960 return 0;
2961 }
2962
2963 int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask,
2964 unsigned long timeout)
2965 {
2966 void dispc_irq_wait_handler(void *data, u32 mask)
2967 {
2968 complete((struct completion *)data);
2969 }
2970
2971 int r;
2972 DECLARE_COMPLETION_ONSTACK(completion);
2973
2974 r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion,
2975 irqmask);
2976
2977 if (r)
2978 return r;
2979
2980 timeout = wait_for_completion_interruptible_timeout(&completion,
2981 timeout);
2982
2983 omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask);
2984
2985 if (timeout == 0)
2986 return -ETIMEDOUT;
2987
2988 if (timeout == -ERESTARTSYS)
2989 return -ERESTARTSYS;
2990
2991 return 0;
2992 }
2993
2994 #ifdef CONFIG_OMAP2_DSS_FAKE_VSYNC
2995 void dispc_fake_vsync_irq(void)
2996 {
2997 u32 irqstatus = DISPC_IRQ_VSYNC;
2998 int i;
2999
3000 local_irq_disable();
3001
3002 for (i = 0; i < DISPC_MAX_NR_ISRS; i++) {
3003 struct omap_dispc_isr_data *isr_data;
3004 isr_data = &dispc.registered_isr[i];
3005
3006 if (!isr_data->isr)
3007 continue;
3008
3009 if (isr_data->mask & irqstatus)
3010 isr_data->isr(isr_data->arg, irqstatus);
3011 }
3012
3013 local_irq_enable();
3014 }
3015 #endif
3016
3017 static void _omap_dispc_initialize_irq(void)
3018 {
3019 unsigned long flags;
3020
3021 spin_lock_irqsave(&dispc.irq_lock, flags);
3022
3023 memset(dispc.registered_isr, 0, sizeof(dispc.registered_isr));
3024
3025 dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR;
3026
3027 /* there's SYNC_LOST_DIGIT waiting after enabling the DSS,
3028 * so clear it */
3029 dispc_write_reg(DISPC_IRQSTATUS, dispc_read_reg(DISPC_IRQSTATUS));
3030
3031 _omap_dispc_set_irqs();
3032
3033 spin_unlock_irqrestore(&dispc.irq_lock, flags);
3034 }
3035
3036 void dispc_enable_sidle(void)
3037 {
3038 REG_FLD_MOD(DISPC_SYSCONFIG, 2, 4, 3); /* SIDLEMODE: smart idle */
3039 }
3040
3041 void dispc_disable_sidle(void)
3042 {
3043 REG_FLD_MOD(DISPC_SYSCONFIG, 1, 4, 3); /* SIDLEMODE: no idle */
3044 }
3045
3046 static void _omap_dispc_initial_config(void)
3047 {
3048 u32 l;
3049
3050 l = dispc_read_reg(DISPC_SYSCONFIG);
3051 l = FLD_MOD(l, 2, 13, 12); /* MIDLEMODE: smart standby */
3052 l = FLD_MOD(l, 2, 4, 3); /* SIDLEMODE: smart idle */
3053 l = FLD_MOD(l, 1, 2, 2); /* ENWAKEUP */
3054 l = FLD_MOD(l, 1, 0, 0); /* AUTOIDLE */
3055 dispc_write_reg(DISPC_SYSCONFIG, l);
3056
3057 /* FUNCGATED */
3058 REG_FLD_MOD(DISPC_CONFIG, 1, 9, 9);
3059
3060 /* L3 firewall setting: enable access to OCM RAM */
3061 /* XXX this should be somewhere in plat-omap */
3062 if (cpu_is_omap24xx())
3063 __raw_writel(0x402000b0, OMAP2_L3_IO_ADDRESS(0x680050a0));
3064
3065 _dispc_setup_color_conv_coef();
3066
3067 dispc_set_loadmode(OMAP_DSS_LOAD_FRAME_ONLY);
3068
3069 dispc_read_plane_fifo_sizes();
3070 }
3071
3072 int dispc_init(void)
3073 {
3074 u32 rev;
3075
3076 spin_lock_init(&dispc.irq_lock);
3077
3078 #ifdef CONFIG_OMAP2_DSS_COLLECT_IRQ_STATS
3079 spin_lock_init(&dispc.irq_stats_lock);
3080 dispc.irq_stats.last_reset = jiffies;
3081 #endif
3082
3083 INIT_WORK(&dispc.error_work, dispc_error_worker);
3084
3085 dispc.base = ioremap(DISPC_BASE, DISPC_SZ_REGS);
3086 if (!dispc.base) {
3087 DSSERR("can't ioremap DISPC\n");
3088 return -ENOMEM;
3089 }
3090
3091 enable_clocks(1);
3092
3093 _omap_dispc_initial_config();
3094
3095 _omap_dispc_initialize_irq();
3096
3097 dispc_save_context();
3098
3099 rev = dispc_read_reg(DISPC_REVISION);
3100 printk(KERN_INFO "OMAP DISPC rev %d.%d\n",
3101 FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0));
3102
3103 enable_clocks(0);
3104
3105 return 0;
3106 }
3107
3108 void dispc_exit(void)
3109 {
3110 iounmap(dispc.base);
3111 }
3112
3113 int dispc_enable_plane(enum omap_plane plane, bool enable)
3114 {
3115 DSSDBG("dispc_enable_plane %d, %d\n", plane, enable);
3116
3117 enable_clocks(1);
3118 _dispc_enable_plane(plane, enable);
3119 enable_clocks(0);
3120
3121 return 0;
3122 }
3123
3124 int dispc_setup_plane(enum omap_plane plane,
3125 u32 paddr, u16 screen_width,
3126 u16 pos_x, u16 pos_y,
3127 u16 width, u16 height,
3128 u16 out_width, u16 out_height,
3129 enum omap_color_mode color_mode,
3130 bool ilace,
3131 enum omap_dss_rotation_type rotation_type,
3132 u8 rotation, bool mirror, u8 global_alpha)
3133 {
3134 int r = 0;
3135
3136 DSSDBG("dispc_setup_plane %d, pa %x, sw %d, %d,%d, %dx%d -> "
3137 "%dx%d, ilace %d, cmode %x, rot %d, mir %d\n",
3138 plane, paddr, screen_width, pos_x, pos_y,
3139 width, height,
3140 out_width, out_height,
3141 ilace, color_mode,
3142 rotation, mirror);
3143
3144 enable_clocks(1);
3145
3146 r = _dispc_setup_plane(plane,
3147 paddr, screen_width,
3148 pos_x, pos_y,
3149 width, height,
3150 out_width, out_height,
3151 color_mode, ilace,
3152 rotation_type,
3153 rotation, mirror,
3154 global_alpha);
3155
3156 enable_clocks(0);
3157
3158 return r;
3159 }
Linux with added FPC-III support