Commit | Line | Data |
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80c39712 TV |
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 | static struct { | |
152 | void __iomem *base; | |
153 | ||
154 | u32 fifo_size[3]; | |
155 | ||
156 | spinlock_t irq_lock; | |
157 | u32 irq_error_mask; | |
158 | struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS]; | |
159 | u32 error_irqs; | |
160 | struct work_struct error_work; | |
161 | ||
162 | u32 ctx[DISPC_SZ_REGS / sizeof(u32)]; | |
163 | } dispc; | |
164 | ||
165 | static void _omap_dispc_set_irqs(void); | |
166 | ||
167 | static inline void dispc_write_reg(const struct dispc_reg idx, u32 val) | |
168 | { | |
169 | __raw_writel(val, dispc.base + idx.idx); | |
170 | } | |
171 | ||
172 | static inline u32 dispc_read_reg(const struct dispc_reg idx) | |
173 | { | |
174 | return __raw_readl(dispc.base + idx.idx); | |
175 | } | |
176 | ||
177 | #define SR(reg) \ | |
178 | dispc.ctx[(DISPC_##reg).idx / sizeof(u32)] = dispc_read_reg(DISPC_##reg) | |
179 | #define RR(reg) \ | |
180 | dispc_write_reg(DISPC_##reg, dispc.ctx[(DISPC_##reg).idx / sizeof(u32)]) | |
181 | ||
182 | void dispc_save_context(void) | |
183 | { | |
184 | if (cpu_is_omap24xx()) | |
185 | return; | |
186 | ||
187 | SR(SYSCONFIG); | |
188 | SR(IRQENABLE); | |
189 | SR(CONTROL); | |
190 | SR(CONFIG); | |
191 | SR(DEFAULT_COLOR0); | |
192 | SR(DEFAULT_COLOR1); | |
193 | SR(TRANS_COLOR0); | |
194 | SR(TRANS_COLOR1); | |
195 | SR(LINE_NUMBER); | |
196 | SR(TIMING_H); | |
197 | SR(TIMING_V); | |
198 | SR(POL_FREQ); | |
199 | SR(DIVISOR); | |
200 | SR(GLOBAL_ALPHA); | |
201 | SR(SIZE_DIG); | |
202 | SR(SIZE_LCD); | |
203 | ||
204 | SR(GFX_BA0); | |
205 | SR(GFX_BA1); | |
206 | SR(GFX_POSITION); | |
207 | SR(GFX_SIZE); | |
208 | SR(GFX_ATTRIBUTES); | |
209 | SR(GFX_FIFO_THRESHOLD); | |
210 | SR(GFX_ROW_INC); | |
211 | SR(GFX_PIXEL_INC); | |
212 | SR(GFX_WINDOW_SKIP); | |
213 | SR(GFX_TABLE_BA); | |
214 | ||
215 | SR(DATA_CYCLE1); | |
216 | SR(DATA_CYCLE2); | |
217 | SR(DATA_CYCLE3); | |
218 | ||
219 | SR(CPR_COEF_R); | |
220 | SR(CPR_COEF_G); | |
221 | SR(CPR_COEF_B); | |
222 | ||
223 | SR(GFX_PRELOAD); | |
224 | ||
225 | /* VID1 */ | |
226 | SR(VID_BA0(0)); | |
227 | SR(VID_BA1(0)); | |
228 | SR(VID_POSITION(0)); | |
229 | SR(VID_SIZE(0)); | |
230 | SR(VID_ATTRIBUTES(0)); | |
231 | SR(VID_FIFO_THRESHOLD(0)); | |
232 | SR(VID_ROW_INC(0)); | |
233 | SR(VID_PIXEL_INC(0)); | |
234 | SR(VID_FIR(0)); | |
235 | SR(VID_PICTURE_SIZE(0)); | |
236 | SR(VID_ACCU0(0)); | |
237 | SR(VID_ACCU1(0)); | |
238 | ||
239 | SR(VID_FIR_COEF_H(0, 0)); | |
240 | SR(VID_FIR_COEF_H(0, 1)); | |
241 | SR(VID_FIR_COEF_H(0, 2)); | |
242 | SR(VID_FIR_COEF_H(0, 3)); | |
243 | SR(VID_FIR_COEF_H(0, 4)); | |
244 | SR(VID_FIR_COEF_H(0, 5)); | |
245 | SR(VID_FIR_COEF_H(0, 6)); | |
246 | SR(VID_FIR_COEF_H(0, 7)); | |
247 | ||
248 | SR(VID_FIR_COEF_HV(0, 0)); | |
249 | SR(VID_FIR_COEF_HV(0, 1)); | |
250 | SR(VID_FIR_COEF_HV(0, 2)); | |
251 | SR(VID_FIR_COEF_HV(0, 3)); | |
252 | SR(VID_FIR_COEF_HV(0, 4)); | |
253 | SR(VID_FIR_COEF_HV(0, 5)); | |
254 | SR(VID_FIR_COEF_HV(0, 6)); | |
255 | SR(VID_FIR_COEF_HV(0, 7)); | |
256 | ||
257 | SR(VID_CONV_COEF(0, 0)); | |
258 | SR(VID_CONV_COEF(0, 1)); | |
259 | SR(VID_CONV_COEF(0, 2)); | |
260 | SR(VID_CONV_COEF(0, 3)); | |
261 | SR(VID_CONV_COEF(0, 4)); | |
262 | ||
263 | SR(VID_FIR_COEF_V(0, 0)); | |
264 | SR(VID_FIR_COEF_V(0, 1)); | |
265 | SR(VID_FIR_COEF_V(0, 2)); | |
266 | SR(VID_FIR_COEF_V(0, 3)); | |
267 | SR(VID_FIR_COEF_V(0, 4)); | |
268 | SR(VID_FIR_COEF_V(0, 5)); | |
269 | SR(VID_FIR_COEF_V(0, 6)); | |
270 | SR(VID_FIR_COEF_V(0, 7)); | |
271 | ||
272 | SR(VID_PRELOAD(0)); | |
273 | ||
274 | /* VID2 */ | |
275 | SR(VID_BA0(1)); | |
276 | SR(VID_BA1(1)); | |
277 | SR(VID_POSITION(1)); | |
278 | SR(VID_SIZE(1)); | |
279 | SR(VID_ATTRIBUTES(1)); | |
280 | SR(VID_FIFO_THRESHOLD(1)); | |
281 | SR(VID_ROW_INC(1)); | |
282 | SR(VID_PIXEL_INC(1)); | |
283 | SR(VID_FIR(1)); | |
284 | SR(VID_PICTURE_SIZE(1)); | |
285 | SR(VID_ACCU0(1)); | |
286 | SR(VID_ACCU1(1)); | |
287 | ||
288 | SR(VID_FIR_COEF_H(1, 0)); | |
289 | SR(VID_FIR_COEF_H(1, 1)); | |
290 | SR(VID_FIR_COEF_H(1, 2)); | |
291 | SR(VID_FIR_COEF_H(1, 3)); | |
292 | SR(VID_FIR_COEF_H(1, 4)); | |
293 | SR(VID_FIR_COEF_H(1, 5)); | |
294 | SR(VID_FIR_COEF_H(1, 6)); | |
295 | SR(VID_FIR_COEF_H(1, 7)); | |
296 | ||
297 | SR(VID_FIR_COEF_HV(1, 0)); | |
298 | SR(VID_FIR_COEF_HV(1, 1)); | |
299 | SR(VID_FIR_COEF_HV(1, 2)); | |
300 | SR(VID_FIR_COEF_HV(1, 3)); | |
301 | SR(VID_FIR_COEF_HV(1, 4)); | |
302 | SR(VID_FIR_COEF_HV(1, 5)); | |
303 | SR(VID_FIR_COEF_HV(1, 6)); | |
304 | SR(VID_FIR_COEF_HV(1, 7)); | |
305 | ||
306 | SR(VID_CONV_COEF(1, 0)); | |
307 | SR(VID_CONV_COEF(1, 1)); | |
308 | SR(VID_CONV_COEF(1, 2)); | |
309 | SR(VID_CONV_COEF(1, 3)); | |
310 | SR(VID_CONV_COEF(1, 4)); | |
311 | ||
312 | SR(VID_FIR_COEF_V(1, 0)); | |
313 | SR(VID_FIR_COEF_V(1, 1)); | |
314 | SR(VID_FIR_COEF_V(1, 2)); | |
315 | SR(VID_FIR_COEF_V(1, 3)); | |
316 | SR(VID_FIR_COEF_V(1, 4)); | |
317 | SR(VID_FIR_COEF_V(1, 5)); | |
318 | SR(VID_FIR_COEF_V(1, 6)); | |
319 | SR(VID_FIR_COEF_V(1, 7)); | |
320 | ||
321 | SR(VID_PRELOAD(1)); | |
322 | } | |
323 | ||
324 | void dispc_restore_context(void) | |
325 | { | |
326 | RR(SYSCONFIG); | |
327 | RR(IRQENABLE); | |
328 | /*RR(CONTROL);*/ | |
329 | RR(CONFIG); | |
330 | RR(DEFAULT_COLOR0); | |
331 | RR(DEFAULT_COLOR1); | |
332 | RR(TRANS_COLOR0); | |
333 | RR(TRANS_COLOR1); | |
334 | RR(LINE_NUMBER); | |
335 | RR(TIMING_H); | |
336 | RR(TIMING_V); | |
337 | RR(POL_FREQ); | |
338 | RR(DIVISOR); | |
339 | RR(GLOBAL_ALPHA); | |
340 | RR(SIZE_DIG); | |
341 | RR(SIZE_LCD); | |
342 | ||
343 | RR(GFX_BA0); | |
344 | RR(GFX_BA1); | |
345 | RR(GFX_POSITION); | |
346 | RR(GFX_SIZE); | |
347 | RR(GFX_ATTRIBUTES); | |
348 | RR(GFX_FIFO_THRESHOLD); | |
349 | RR(GFX_ROW_INC); | |
350 | RR(GFX_PIXEL_INC); | |
351 | RR(GFX_WINDOW_SKIP); | |
352 | RR(GFX_TABLE_BA); | |
353 | ||
354 | RR(DATA_CYCLE1); | |
355 | RR(DATA_CYCLE2); | |
356 | RR(DATA_CYCLE3); | |
357 | ||
358 | RR(CPR_COEF_R); | |
359 | RR(CPR_COEF_G); | |
360 | RR(CPR_COEF_B); | |
361 | ||
362 | RR(GFX_PRELOAD); | |
363 | ||
364 | /* VID1 */ | |
365 | RR(VID_BA0(0)); | |
366 | RR(VID_BA1(0)); | |
367 | RR(VID_POSITION(0)); | |
368 | RR(VID_SIZE(0)); | |
369 | RR(VID_ATTRIBUTES(0)); | |
370 | RR(VID_FIFO_THRESHOLD(0)); | |
371 | RR(VID_ROW_INC(0)); | |
372 | RR(VID_PIXEL_INC(0)); | |
373 | RR(VID_FIR(0)); | |
374 | RR(VID_PICTURE_SIZE(0)); | |
375 | RR(VID_ACCU0(0)); | |
376 | RR(VID_ACCU1(0)); | |
377 | ||
378 | RR(VID_FIR_COEF_H(0, 0)); | |
379 | RR(VID_FIR_COEF_H(0, 1)); | |
380 | RR(VID_FIR_COEF_H(0, 2)); | |
381 | RR(VID_FIR_COEF_H(0, 3)); | |
382 | RR(VID_FIR_COEF_H(0, 4)); | |
383 | RR(VID_FIR_COEF_H(0, 5)); | |
384 | RR(VID_FIR_COEF_H(0, 6)); | |
385 | RR(VID_FIR_COEF_H(0, 7)); | |
386 | ||
387 | RR(VID_FIR_COEF_HV(0, 0)); | |
388 | RR(VID_FIR_COEF_HV(0, 1)); | |
389 | RR(VID_FIR_COEF_HV(0, 2)); | |
390 | RR(VID_FIR_COEF_HV(0, 3)); | |
391 | RR(VID_FIR_COEF_HV(0, 4)); | |
392 | RR(VID_FIR_COEF_HV(0, 5)); | |
393 | RR(VID_FIR_COEF_HV(0, 6)); | |
394 | RR(VID_FIR_COEF_HV(0, 7)); | |
395 | ||
396 | RR(VID_CONV_COEF(0, 0)); | |
397 | RR(VID_CONV_COEF(0, 1)); | |
398 | RR(VID_CONV_COEF(0, 2)); | |
399 | RR(VID_CONV_COEF(0, 3)); | |
400 | RR(VID_CONV_COEF(0, 4)); | |
401 | ||
402 | RR(VID_FIR_COEF_V(0, 0)); | |
403 | RR(VID_FIR_COEF_V(0, 1)); | |
404 | RR(VID_FIR_COEF_V(0, 2)); | |
405 | RR(VID_FIR_COEF_V(0, 3)); | |
406 | RR(VID_FIR_COEF_V(0, 4)); | |
407 | RR(VID_FIR_COEF_V(0, 5)); | |
408 | RR(VID_FIR_COEF_V(0, 6)); | |
409 | RR(VID_FIR_COEF_V(0, 7)); | |
410 | ||
411 | RR(VID_PRELOAD(0)); | |
412 | ||
413 | /* VID2 */ | |
414 | RR(VID_BA0(1)); | |
415 | RR(VID_BA1(1)); | |
416 | RR(VID_POSITION(1)); | |
417 | RR(VID_SIZE(1)); | |
418 | RR(VID_ATTRIBUTES(1)); | |
419 | RR(VID_FIFO_THRESHOLD(1)); | |
420 | RR(VID_ROW_INC(1)); | |
421 | RR(VID_PIXEL_INC(1)); | |
422 | RR(VID_FIR(1)); | |
423 | RR(VID_PICTURE_SIZE(1)); | |
424 | RR(VID_ACCU0(1)); | |
425 | RR(VID_ACCU1(1)); | |
426 | ||
427 | RR(VID_FIR_COEF_H(1, 0)); | |
428 | RR(VID_FIR_COEF_H(1, 1)); | |
429 | RR(VID_FIR_COEF_H(1, 2)); | |
430 | RR(VID_FIR_COEF_H(1, 3)); | |
431 | RR(VID_FIR_COEF_H(1, 4)); | |
432 | RR(VID_FIR_COEF_H(1, 5)); | |
433 | RR(VID_FIR_COEF_H(1, 6)); | |
434 | RR(VID_FIR_COEF_H(1, 7)); | |
435 | ||
436 | RR(VID_FIR_COEF_HV(1, 0)); | |
437 | RR(VID_FIR_COEF_HV(1, 1)); | |
438 | RR(VID_FIR_COEF_HV(1, 2)); | |
439 | RR(VID_FIR_COEF_HV(1, 3)); | |
440 | RR(VID_FIR_COEF_HV(1, 4)); | |
441 | RR(VID_FIR_COEF_HV(1, 5)); | |
442 | RR(VID_FIR_COEF_HV(1, 6)); | |
443 | RR(VID_FIR_COEF_HV(1, 7)); | |
444 | ||
445 | RR(VID_CONV_COEF(1, 0)); | |
446 | RR(VID_CONV_COEF(1, 1)); | |
447 | RR(VID_CONV_COEF(1, 2)); | |
448 | RR(VID_CONV_COEF(1, 3)); | |
449 | RR(VID_CONV_COEF(1, 4)); | |
450 | ||
451 | RR(VID_FIR_COEF_V(1, 0)); | |
452 | RR(VID_FIR_COEF_V(1, 1)); | |
453 | RR(VID_FIR_COEF_V(1, 2)); | |
454 | RR(VID_FIR_COEF_V(1, 3)); | |
455 | RR(VID_FIR_COEF_V(1, 4)); | |
456 | RR(VID_FIR_COEF_V(1, 5)); | |
457 | RR(VID_FIR_COEF_V(1, 6)); | |
458 | RR(VID_FIR_COEF_V(1, 7)); | |
459 | ||
460 | RR(VID_PRELOAD(1)); | |
461 | ||
462 | /* enable last, because LCD & DIGIT enable are here */ | |
463 | RR(CONTROL); | |
464 | } | |
465 | ||
466 | #undef SR | |
467 | #undef RR | |
468 | ||
469 | static inline void enable_clocks(bool enable) | |
470 | { | |
471 | if (enable) | |
472 | dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); | |
473 | else | |
474 | dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); | |
475 | } | |
476 | ||
477 | bool dispc_go_busy(enum omap_channel channel) | |
478 | { | |
479 | int bit; | |
480 | ||
481 | if (channel == OMAP_DSS_CHANNEL_LCD) | |
482 | bit = 5; /* GOLCD */ | |
483 | else | |
484 | bit = 6; /* GODIGIT */ | |
485 | ||
486 | return REG_GET(DISPC_CONTROL, bit, bit) == 1; | |
487 | } | |
488 | ||
489 | void dispc_go(enum omap_channel channel) | |
490 | { | |
491 | int bit; | |
492 | ||
493 | enable_clocks(1); | |
494 | ||
495 | if (channel == OMAP_DSS_CHANNEL_LCD) | |
496 | bit = 0; /* LCDENABLE */ | |
497 | else | |
498 | bit = 1; /* DIGITALENABLE */ | |
499 | ||
500 | /* if the channel is not enabled, we don't need GO */ | |
501 | if (REG_GET(DISPC_CONTROL, bit, bit) == 0) | |
502 | goto end; | |
503 | ||
504 | if (channel == OMAP_DSS_CHANNEL_LCD) | |
505 | bit = 5; /* GOLCD */ | |
506 | else | |
507 | bit = 6; /* GODIGIT */ | |
508 | ||
509 | if (REG_GET(DISPC_CONTROL, bit, bit) == 1) { | |
510 | DSSERR("GO bit not down for channel %d\n", channel); | |
511 | goto end; | |
512 | } | |
513 | ||
514 | DSSDBG("GO %s\n", channel == OMAP_DSS_CHANNEL_LCD ? "LCD" : "DIGIT"); | |
515 | ||
516 | REG_FLD_MOD(DISPC_CONTROL, 1, bit, bit); | |
517 | end: | |
518 | enable_clocks(0); | |
519 | } | |
520 | ||
521 | static void _dispc_write_firh_reg(enum omap_plane plane, int reg, u32 value) | |
522 | { | |
523 | BUG_ON(plane == OMAP_DSS_GFX); | |
524 | ||
525 | dispc_write_reg(DISPC_VID_FIR_COEF_H(plane-1, reg), value); | |
526 | } | |
527 | ||
528 | static void _dispc_write_firhv_reg(enum omap_plane plane, int reg, u32 value) | |
529 | { | |
530 | BUG_ON(plane == OMAP_DSS_GFX); | |
531 | ||
532 | dispc_write_reg(DISPC_VID_FIR_COEF_HV(plane-1, reg), value); | |
533 | } | |
534 | ||
535 | static void _dispc_write_firv_reg(enum omap_plane plane, int reg, u32 value) | |
536 | { | |
537 | BUG_ON(plane == OMAP_DSS_GFX); | |
538 | ||
539 | dispc_write_reg(DISPC_VID_FIR_COEF_V(plane-1, reg), value); | |
540 | } | |
541 | ||
542 | static void _dispc_set_scale_coef(enum omap_plane plane, int hscaleup, | |
543 | int vscaleup, int five_taps) | |
544 | { | |
545 | /* Coefficients for horizontal up-sampling */ | |
546 | static const u32 coef_hup[8] = { | |
547 | 0x00800000, | |
548 | 0x0D7CF800, | |
549 | 0x1E70F5FF, | |
550 | 0x335FF5FE, | |
551 | 0xF74949F7, | |
552 | 0xF55F33FB, | |
553 | 0xF5701EFE, | |
554 | 0xF87C0DFF, | |
555 | }; | |
556 | ||
557 | /* Coefficients for horizontal down-sampling */ | |
558 | static const u32 coef_hdown[8] = { | |
559 | 0x24382400, | |
560 | 0x28371FFE, | |
561 | 0x2C361BFB, | |
562 | 0x303516F9, | |
563 | 0x11343311, | |
564 | 0x1635300C, | |
565 | 0x1B362C08, | |
566 | 0x1F372804, | |
567 | }; | |
568 | ||
569 | /* Coefficients for horizontal and vertical up-sampling */ | |
570 | static const u32 coef_hvup[2][8] = { | |
571 | { | |
572 | 0x00800000, | |
573 | 0x037B02FF, | |
574 | 0x0C6F05FE, | |
575 | 0x205907FB, | |
576 | 0x00404000, | |
577 | 0x075920FE, | |
578 | 0x056F0CFF, | |
579 | 0x027B0300, | |
580 | }, | |
581 | { | |
582 | 0x00800000, | |
583 | 0x0D7CF8FF, | |
584 | 0x1E70F5FE, | |
585 | 0x335FF5FB, | |
586 | 0xF7404000, | |
587 | 0xF55F33FE, | |
588 | 0xF5701EFF, | |
589 | 0xF87C0D00, | |
590 | }, | |
591 | }; | |
592 | ||
593 | /* Coefficients for horizontal and vertical down-sampling */ | |
594 | static const u32 coef_hvdown[2][8] = { | |
595 | { | |
596 | 0x24382400, | |
597 | 0x28391F04, | |
598 | 0x2D381B08, | |
599 | 0x3237170C, | |
600 | 0x123737F7, | |
601 | 0x173732F9, | |
602 | 0x1B382DFB, | |
603 | 0x1F3928FE, | |
604 | }, | |
605 | { | |
606 | 0x24382400, | |
607 | 0x28371F04, | |
608 | 0x2C361B08, | |
609 | 0x3035160C, | |
610 | 0x113433F7, | |
611 | 0x163530F9, | |
612 | 0x1B362CFB, | |
613 | 0x1F3728FE, | |
614 | }, | |
615 | }; | |
616 | ||
617 | /* Coefficients for vertical up-sampling */ | |
618 | static const u32 coef_vup[8] = { | |
619 | 0x00000000, | |
620 | 0x0000FF00, | |
621 | 0x0000FEFF, | |
622 | 0x0000FBFE, | |
623 | 0x000000F7, | |
624 | 0x0000FEFB, | |
625 | 0x0000FFFE, | |
626 | 0x000000FF, | |
627 | }; | |
628 | ||
629 | ||
630 | /* Coefficients for vertical down-sampling */ | |
631 | static const u32 coef_vdown[8] = { | |
632 | 0x00000000, | |
633 | 0x000004FE, | |
634 | 0x000008FB, | |
635 | 0x00000CF9, | |
636 | 0x0000F711, | |
637 | 0x0000F90C, | |
638 | 0x0000FB08, | |
639 | 0x0000FE04, | |
640 | }; | |
641 | ||
642 | const u32 *h_coef; | |
643 | const u32 *hv_coef; | |
644 | const u32 *hv_coef_mod; | |
645 | const u32 *v_coef; | |
646 | int i; | |
647 | ||
648 | if (hscaleup) | |
649 | h_coef = coef_hup; | |
650 | else | |
651 | h_coef = coef_hdown; | |
652 | ||
653 | if (vscaleup) { | |
654 | hv_coef = coef_hvup[five_taps]; | |
655 | v_coef = coef_vup; | |
656 | ||
657 | if (hscaleup) | |
658 | hv_coef_mod = NULL; | |
659 | else | |
660 | hv_coef_mod = coef_hvdown[five_taps]; | |
661 | } else { | |
662 | hv_coef = coef_hvdown[five_taps]; | |
663 | v_coef = coef_vdown; | |
664 | ||
665 | if (hscaleup) | |
666 | hv_coef_mod = coef_hvup[five_taps]; | |
667 | else | |
668 | hv_coef_mod = NULL; | |
669 | } | |
670 | ||
671 | for (i = 0; i < 8; i++) { | |
672 | u32 h, hv; | |
673 | ||
674 | h = h_coef[i]; | |
675 | ||
676 | hv = hv_coef[i]; | |
677 | ||
678 | if (hv_coef_mod) { | |
679 | hv &= 0xffffff00; | |
680 | hv |= (hv_coef_mod[i] & 0xff); | |
681 | } | |
682 | ||
683 | _dispc_write_firh_reg(plane, i, h); | |
684 | _dispc_write_firhv_reg(plane, i, hv); | |
685 | } | |
686 | ||
687 | if (!five_taps) | |
688 | return; | |
689 | ||
690 | for (i = 0; i < 8; i++) { | |
691 | u32 v; | |
692 | v = v_coef[i]; | |
693 | _dispc_write_firv_reg(plane, i, v); | |
694 | } | |
695 | } | |
696 | ||
697 | static void _dispc_setup_color_conv_coef(void) | |
698 | { | |
699 | const struct color_conv_coef { | |
700 | int ry, rcr, rcb, gy, gcr, gcb, by, bcr, bcb; | |
701 | int full_range; | |
702 | } ctbl_bt601_5 = { | |
703 | 298, 409, 0, 298, -208, -100, 298, 0, 517, 0, | |
704 | }; | |
705 | ||
706 | const struct color_conv_coef *ct; | |
707 | ||
708 | #define CVAL(x, y) (FLD_VAL(x, 26, 16) | FLD_VAL(y, 10, 0)) | |
709 | ||
710 | ct = &ctbl_bt601_5; | |
711 | ||
712 | dispc_write_reg(DISPC_VID_CONV_COEF(0, 0), CVAL(ct->rcr, ct->ry)); | |
713 | dispc_write_reg(DISPC_VID_CONV_COEF(0, 1), CVAL(ct->gy, ct->rcb)); | |
714 | dispc_write_reg(DISPC_VID_CONV_COEF(0, 2), CVAL(ct->gcb, ct->gcr)); | |
715 | dispc_write_reg(DISPC_VID_CONV_COEF(0, 3), CVAL(ct->bcr, ct->by)); | |
716 | dispc_write_reg(DISPC_VID_CONV_COEF(0, 4), CVAL(0, ct->bcb)); | |
717 | ||
718 | dispc_write_reg(DISPC_VID_CONV_COEF(1, 0), CVAL(ct->rcr, ct->ry)); | |
719 | dispc_write_reg(DISPC_VID_CONV_COEF(1, 1), CVAL(ct->gy, ct->rcb)); | |
720 | dispc_write_reg(DISPC_VID_CONV_COEF(1, 2), CVAL(ct->gcb, ct->gcr)); | |
721 | dispc_write_reg(DISPC_VID_CONV_COEF(1, 3), CVAL(ct->bcr, ct->by)); | |
722 | dispc_write_reg(DISPC_VID_CONV_COEF(1, 4), CVAL(0, ct->bcb)); | |
723 | ||
724 | #undef CVAL | |
725 | ||
726 | REG_FLD_MOD(DISPC_VID_ATTRIBUTES(0), ct->full_range, 11, 11); | |
727 | REG_FLD_MOD(DISPC_VID_ATTRIBUTES(1), ct->full_range, 11, 11); | |
728 | } | |
729 | ||
730 | ||
731 | static void _dispc_set_plane_ba0(enum omap_plane plane, u32 paddr) | |
732 | { | |
733 | const struct dispc_reg ba0_reg[] = { DISPC_GFX_BA0, | |
734 | DISPC_VID_BA0(0), | |
735 | DISPC_VID_BA0(1) }; | |
736 | ||
737 | dispc_write_reg(ba0_reg[plane], paddr); | |
738 | } | |
739 | ||
740 | static void _dispc_set_plane_ba1(enum omap_plane plane, u32 paddr) | |
741 | { | |
742 | const struct dispc_reg ba1_reg[] = { DISPC_GFX_BA1, | |
743 | DISPC_VID_BA1(0), | |
744 | DISPC_VID_BA1(1) }; | |
745 | ||
746 | dispc_write_reg(ba1_reg[plane], paddr); | |
747 | } | |
748 | ||
749 | static void _dispc_set_plane_pos(enum omap_plane plane, int x, int y) | |
750 | { | |
751 | const struct dispc_reg pos_reg[] = { DISPC_GFX_POSITION, | |
752 | DISPC_VID_POSITION(0), | |
753 | DISPC_VID_POSITION(1) }; | |
754 | ||
755 | u32 val = FLD_VAL(y, 26, 16) | FLD_VAL(x, 10, 0); | |
756 | dispc_write_reg(pos_reg[plane], val); | |
757 | } | |
758 | ||
759 | static void _dispc_set_pic_size(enum omap_plane plane, int width, int height) | |
760 | { | |
761 | const struct dispc_reg siz_reg[] = { DISPC_GFX_SIZE, | |
762 | DISPC_VID_PICTURE_SIZE(0), | |
763 | DISPC_VID_PICTURE_SIZE(1) }; | |
764 | u32 val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0); | |
765 | dispc_write_reg(siz_reg[plane], val); | |
766 | } | |
767 | ||
768 | static void _dispc_set_vid_size(enum omap_plane plane, int width, int height) | |
769 | { | |
770 | u32 val; | |
771 | const struct dispc_reg vsi_reg[] = { DISPC_VID_SIZE(0), | |
772 | DISPC_VID_SIZE(1) }; | |
773 | ||
774 | BUG_ON(plane == OMAP_DSS_GFX); | |
775 | ||
776 | val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0); | |
777 | dispc_write_reg(vsi_reg[plane-1], val); | |
778 | } | |
779 | ||
780 | static void _dispc_setup_global_alpha(enum omap_plane plane, u8 global_alpha) | |
781 | { | |
782 | ||
783 | BUG_ON(plane == OMAP_DSS_VIDEO1); | |
784 | ||
785 | if (cpu_is_omap24xx()) | |
786 | return; | |
787 | ||
788 | if (plane == OMAP_DSS_GFX) | |
789 | REG_FLD_MOD(DISPC_GLOBAL_ALPHA, global_alpha, 7, 0); | |
790 | else if (plane == OMAP_DSS_VIDEO2) | |
791 | REG_FLD_MOD(DISPC_GLOBAL_ALPHA, global_alpha, 23, 16); | |
792 | } | |
793 | ||
794 | static void _dispc_set_pix_inc(enum omap_plane plane, s32 inc) | |
795 | { | |
796 | const struct dispc_reg ri_reg[] = { DISPC_GFX_PIXEL_INC, | |
797 | DISPC_VID_PIXEL_INC(0), | |
798 | DISPC_VID_PIXEL_INC(1) }; | |
799 | ||
800 | dispc_write_reg(ri_reg[plane], inc); | |
801 | } | |
802 | ||
803 | static void _dispc_set_row_inc(enum omap_plane plane, s32 inc) | |
804 | { | |
805 | const struct dispc_reg ri_reg[] = { DISPC_GFX_ROW_INC, | |
806 | DISPC_VID_ROW_INC(0), | |
807 | DISPC_VID_ROW_INC(1) }; | |
808 | ||
809 | dispc_write_reg(ri_reg[plane], inc); | |
810 | } | |
811 | ||
812 | static void _dispc_set_color_mode(enum omap_plane plane, | |
813 | enum omap_color_mode color_mode) | |
814 | { | |
815 | u32 m = 0; | |
816 | ||
817 | switch (color_mode) { | |
818 | case OMAP_DSS_COLOR_CLUT1: | |
819 | m = 0x0; break; | |
820 | case OMAP_DSS_COLOR_CLUT2: | |
821 | m = 0x1; break; | |
822 | case OMAP_DSS_COLOR_CLUT4: | |
823 | m = 0x2; break; | |
824 | case OMAP_DSS_COLOR_CLUT8: | |
825 | m = 0x3; break; | |
826 | case OMAP_DSS_COLOR_RGB12U: | |
827 | m = 0x4; break; | |
828 | case OMAP_DSS_COLOR_ARGB16: | |
829 | m = 0x5; break; | |
830 | case OMAP_DSS_COLOR_RGB16: | |
831 | m = 0x6; break; | |
832 | case OMAP_DSS_COLOR_RGB24U: | |
833 | m = 0x8; break; | |
834 | case OMAP_DSS_COLOR_RGB24P: | |
835 | m = 0x9; break; | |
836 | case OMAP_DSS_COLOR_YUV2: | |
837 | m = 0xa; break; | |
838 | case OMAP_DSS_COLOR_UYVY: | |
839 | m = 0xb; break; | |
840 | case OMAP_DSS_COLOR_ARGB32: | |
841 | m = 0xc; break; | |
842 | case OMAP_DSS_COLOR_RGBA32: | |
843 | m = 0xd; break; | |
844 | case OMAP_DSS_COLOR_RGBX32: | |
845 | m = 0xe; break; | |
846 | default: | |
847 | BUG(); break; | |
848 | } | |
849 | ||
850 | REG_FLD_MOD(dispc_reg_att[plane], m, 4, 1); | |
851 | } | |
852 | ||
853 | static void _dispc_set_channel_out(enum omap_plane plane, | |
854 | enum omap_channel channel) | |
855 | { | |
856 | int shift; | |
857 | u32 val; | |
858 | ||
859 | switch (plane) { | |
860 | case OMAP_DSS_GFX: | |
861 | shift = 8; | |
862 | break; | |
863 | case OMAP_DSS_VIDEO1: | |
864 | case OMAP_DSS_VIDEO2: | |
865 | shift = 16; | |
866 | break; | |
867 | default: | |
868 | BUG(); | |
869 | return; | |
870 | } | |
871 | ||
872 | val = dispc_read_reg(dispc_reg_att[plane]); | |
873 | val = FLD_MOD(val, channel, shift, shift); | |
874 | dispc_write_reg(dispc_reg_att[plane], val); | |
875 | } | |
876 | ||
877 | void dispc_set_burst_size(enum omap_plane plane, | |
878 | enum omap_burst_size burst_size) | |
879 | { | |
880 | int shift; | |
881 | u32 val; | |
882 | ||
883 | enable_clocks(1); | |
884 | ||
885 | switch (plane) { | |
886 | case OMAP_DSS_GFX: | |
887 | shift = 6; | |
888 | break; | |
889 | case OMAP_DSS_VIDEO1: | |
890 | case OMAP_DSS_VIDEO2: | |
891 | shift = 14; | |
892 | break; | |
893 | default: | |
894 | BUG(); | |
895 | return; | |
896 | } | |
897 | ||
898 | val = dispc_read_reg(dispc_reg_att[plane]); | |
899 | val = FLD_MOD(val, burst_size, shift+1, shift); | |
900 | dispc_write_reg(dispc_reg_att[plane], val); | |
901 | ||
902 | enable_clocks(0); | |
903 | } | |
904 | ||
905 | static void _dispc_set_vid_color_conv(enum omap_plane plane, bool enable) | |
906 | { | |
907 | u32 val; | |
908 | ||
909 | BUG_ON(plane == OMAP_DSS_GFX); | |
910 | ||
911 | val = dispc_read_reg(dispc_reg_att[plane]); | |
912 | val = FLD_MOD(val, enable, 9, 9); | |
913 | dispc_write_reg(dispc_reg_att[plane], val); | |
914 | } | |
915 | ||
916 | void dispc_enable_replication(enum omap_plane plane, bool enable) | |
917 | { | |
918 | int bit; | |
919 | ||
920 | if (plane == OMAP_DSS_GFX) | |
921 | bit = 5; | |
922 | else | |
923 | bit = 10; | |
924 | ||
925 | enable_clocks(1); | |
926 | REG_FLD_MOD(dispc_reg_att[plane], enable, bit, bit); | |
927 | enable_clocks(0); | |
928 | } | |
929 | ||
930 | void dispc_set_lcd_size(u16 width, u16 height) | |
931 | { | |
932 | u32 val; | |
933 | BUG_ON((width > (1 << 11)) || (height > (1 << 11))); | |
934 | val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0); | |
935 | enable_clocks(1); | |
936 | dispc_write_reg(DISPC_SIZE_LCD, val); | |
937 | enable_clocks(0); | |
938 | } | |
939 | ||
940 | void dispc_set_digit_size(u16 width, u16 height) | |
941 | { | |
942 | u32 val; | |
943 | BUG_ON((width > (1 << 11)) || (height > (1 << 11))); | |
944 | val = FLD_VAL(height - 1, 26, 16) | FLD_VAL(width - 1, 10, 0); | |
945 | enable_clocks(1); | |
946 | dispc_write_reg(DISPC_SIZE_DIG, val); | |
947 | enable_clocks(0); | |
948 | } | |
949 | ||
950 | static void dispc_read_plane_fifo_sizes(void) | |
951 | { | |
952 | const struct dispc_reg fsz_reg[] = { DISPC_GFX_FIFO_SIZE_STATUS, | |
953 | DISPC_VID_FIFO_SIZE_STATUS(0), | |
954 | DISPC_VID_FIFO_SIZE_STATUS(1) }; | |
955 | u32 size; | |
956 | int plane; | |
957 | ||
958 | enable_clocks(1); | |
959 | ||
960 | for (plane = 0; plane < ARRAY_SIZE(dispc.fifo_size); ++plane) { | |
961 | if (cpu_is_omap24xx()) | |
962 | size = FLD_GET(dispc_read_reg(fsz_reg[plane]), 8, 0); | |
963 | else if (cpu_is_omap34xx()) | |
964 | size = FLD_GET(dispc_read_reg(fsz_reg[plane]), 10, 0); | |
965 | else | |
966 | BUG(); | |
967 | ||
968 | dispc.fifo_size[plane] = size; | |
969 | } | |
970 | ||
971 | enable_clocks(0); | |
972 | } | |
973 | ||
974 | u32 dispc_get_plane_fifo_size(enum omap_plane plane) | |
975 | { | |
976 | return dispc.fifo_size[plane]; | |
977 | } | |
978 | ||
979 | void dispc_setup_plane_fifo(enum omap_plane plane, u32 low, u32 high) | |
980 | { | |
981 | const struct dispc_reg ftrs_reg[] = { DISPC_GFX_FIFO_THRESHOLD, | |
982 | DISPC_VID_FIFO_THRESHOLD(0), | |
983 | DISPC_VID_FIFO_THRESHOLD(1) }; | |
984 | enable_clocks(1); | |
985 | ||
986 | DSSDBG("fifo(%d) low/high old %u/%u, new %u/%u\n", | |
987 | plane, | |
988 | REG_GET(ftrs_reg[plane], 11, 0), | |
989 | REG_GET(ftrs_reg[plane], 27, 16), | |
990 | low, high); | |
991 | ||
992 | if (cpu_is_omap24xx()) | |
993 | dispc_write_reg(ftrs_reg[plane], | |
994 | FLD_VAL(high, 24, 16) | FLD_VAL(low, 8, 0)); | |
995 | else | |
996 | dispc_write_reg(ftrs_reg[plane], | |
997 | FLD_VAL(high, 27, 16) | FLD_VAL(low, 11, 0)); | |
998 | ||
999 | enable_clocks(0); | |
1000 | } | |
1001 | ||
1002 | void dispc_enable_fifomerge(bool enable) | |
1003 | { | |
1004 | enable_clocks(1); | |
1005 | ||
1006 | DSSDBG("FIFO merge %s\n", enable ? "enabled" : "disabled"); | |
1007 | REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 14, 14); | |
1008 | ||
1009 | enable_clocks(0); | |
1010 | } | |
1011 | ||
1012 | static void _dispc_set_fir(enum omap_plane plane, int hinc, int vinc) | |
1013 | { | |
1014 | u32 val; | |
1015 | const struct dispc_reg fir_reg[] = { DISPC_VID_FIR(0), | |
1016 | DISPC_VID_FIR(1) }; | |
1017 | ||
1018 | BUG_ON(plane == OMAP_DSS_GFX); | |
1019 | ||
1020 | if (cpu_is_omap24xx()) | |
1021 | val = FLD_VAL(vinc, 27, 16) | FLD_VAL(hinc, 11, 0); | |
1022 | else | |
1023 | val = FLD_VAL(vinc, 28, 16) | FLD_VAL(hinc, 12, 0); | |
1024 | dispc_write_reg(fir_reg[plane-1], val); | |
1025 | } | |
1026 | ||
1027 | static void _dispc_set_vid_accu0(enum omap_plane plane, int haccu, int vaccu) | |
1028 | { | |
1029 | u32 val; | |
1030 | const struct dispc_reg ac0_reg[] = { DISPC_VID_ACCU0(0), | |
1031 | DISPC_VID_ACCU0(1) }; | |
1032 | ||
1033 | BUG_ON(plane == OMAP_DSS_GFX); | |
1034 | ||
1035 | val = FLD_VAL(vaccu, 25, 16) | FLD_VAL(haccu, 9, 0); | |
1036 | dispc_write_reg(ac0_reg[plane-1], val); | |
1037 | } | |
1038 | ||
1039 | static void _dispc_set_vid_accu1(enum omap_plane plane, int haccu, int vaccu) | |
1040 | { | |
1041 | u32 val; | |
1042 | const struct dispc_reg ac1_reg[] = { DISPC_VID_ACCU1(0), | |
1043 | DISPC_VID_ACCU1(1) }; | |
1044 | ||
1045 | BUG_ON(plane == OMAP_DSS_GFX); | |
1046 | ||
1047 | val = FLD_VAL(vaccu, 25, 16) | FLD_VAL(haccu, 9, 0); | |
1048 | dispc_write_reg(ac1_reg[plane-1], val); | |
1049 | } | |
1050 | ||
1051 | ||
1052 | static void _dispc_set_scaling(enum omap_plane plane, | |
1053 | u16 orig_width, u16 orig_height, | |
1054 | u16 out_width, u16 out_height, | |
1055 | bool ilace, bool five_taps, | |
1056 | bool fieldmode) | |
1057 | { | |
1058 | int fir_hinc; | |
1059 | int fir_vinc; | |
1060 | int hscaleup, vscaleup; | |
1061 | int accu0 = 0; | |
1062 | int accu1 = 0; | |
1063 | u32 l; | |
1064 | ||
1065 | BUG_ON(plane == OMAP_DSS_GFX); | |
1066 | ||
1067 | hscaleup = orig_width <= out_width; | |
1068 | vscaleup = orig_height <= out_height; | |
1069 | ||
1070 | _dispc_set_scale_coef(plane, hscaleup, vscaleup, five_taps); | |
1071 | ||
1072 | if (!orig_width || orig_width == out_width) | |
1073 | fir_hinc = 0; | |
1074 | else | |
1075 | fir_hinc = 1024 * orig_width / out_width; | |
1076 | ||
1077 | if (!orig_height || orig_height == out_height) | |
1078 | fir_vinc = 0; | |
1079 | else | |
1080 | fir_vinc = 1024 * orig_height / out_height; | |
1081 | ||
1082 | _dispc_set_fir(plane, fir_hinc, fir_vinc); | |
1083 | ||
1084 | l = dispc_read_reg(dispc_reg_att[plane]); | |
1085 | l &= ~((0x0f << 5) | (0x3 << 21)); | |
1086 | ||
1087 | l |= fir_hinc ? (1 << 5) : 0; | |
1088 | l |= fir_vinc ? (1 << 6) : 0; | |
1089 | ||
1090 | l |= hscaleup ? 0 : (1 << 7); | |
1091 | l |= vscaleup ? 0 : (1 << 8); | |
1092 | ||
1093 | l |= five_taps ? (1 << 21) : 0; | |
1094 | l |= five_taps ? (1 << 22) : 0; | |
1095 | ||
1096 | dispc_write_reg(dispc_reg_att[plane], l); | |
1097 | ||
1098 | /* | |
1099 | * field 0 = even field = bottom field | |
1100 | * field 1 = odd field = top field | |
1101 | */ | |
1102 | if (ilace && !fieldmode) { | |
1103 | accu1 = 0; | |
1104 | accu0 = (fir_vinc / 2) & 0x3ff; | |
1105 | if (accu0 >= 1024/2) { | |
1106 | accu1 = 1024/2; | |
1107 | accu0 -= accu1; | |
1108 | } | |
1109 | } | |
1110 | ||
1111 | _dispc_set_vid_accu0(plane, 0, accu0); | |
1112 | _dispc_set_vid_accu1(plane, 0, accu1); | |
1113 | } | |
1114 | ||
1115 | static void _dispc_set_rotation_attrs(enum omap_plane plane, u8 rotation, | |
1116 | bool mirroring, enum omap_color_mode color_mode) | |
1117 | { | |
1118 | if (color_mode == OMAP_DSS_COLOR_YUV2 || | |
1119 | color_mode == OMAP_DSS_COLOR_UYVY) { | |
1120 | int vidrot = 0; | |
1121 | ||
1122 | if (mirroring) { | |
1123 | switch (rotation) { | |
1124 | case OMAP_DSS_ROT_0: | |
1125 | vidrot = 2; | |
1126 | break; | |
1127 | case OMAP_DSS_ROT_90: | |
1128 | vidrot = 1; | |
1129 | break; | |
1130 | case OMAP_DSS_ROT_180: | |
1131 | vidrot = 0; | |
1132 | break; | |
1133 | case OMAP_DSS_ROT_270: | |
1134 | vidrot = 3; | |
1135 | break; | |
1136 | } | |
1137 | } else { | |
1138 | switch (rotation) { | |
1139 | case OMAP_DSS_ROT_0: | |
1140 | vidrot = 0; | |
1141 | break; | |
1142 | case OMAP_DSS_ROT_90: | |
1143 | vidrot = 1; | |
1144 | break; | |
1145 | case OMAP_DSS_ROT_180: | |
1146 | vidrot = 2; | |
1147 | break; | |
1148 | case OMAP_DSS_ROT_270: | |
1149 | vidrot = 3; | |
1150 | break; | |
1151 | } | |
1152 | } | |
1153 | ||
1154 | REG_FLD_MOD(dispc_reg_att[plane], vidrot, 13, 12); | |
1155 | ||
1156 | if (rotation == OMAP_DSS_ROT_90 || rotation == OMAP_DSS_ROT_270) | |
1157 | REG_FLD_MOD(dispc_reg_att[plane], 0x1, 18, 18); | |
1158 | else | |
1159 | REG_FLD_MOD(dispc_reg_att[plane], 0x0, 18, 18); | |
1160 | } else { | |
1161 | REG_FLD_MOD(dispc_reg_att[plane], 0, 13, 12); | |
1162 | REG_FLD_MOD(dispc_reg_att[plane], 0, 18, 18); | |
1163 | } | |
1164 | } | |
1165 | ||
1166 | static int color_mode_to_bpp(enum omap_color_mode color_mode) | |
1167 | { | |
1168 | switch (color_mode) { | |
1169 | case OMAP_DSS_COLOR_CLUT1: | |
1170 | return 1; | |
1171 | case OMAP_DSS_COLOR_CLUT2: | |
1172 | return 2; | |
1173 | case OMAP_DSS_COLOR_CLUT4: | |
1174 | return 4; | |
1175 | case OMAP_DSS_COLOR_CLUT8: | |
1176 | return 8; | |
1177 | case OMAP_DSS_COLOR_RGB12U: | |
1178 | case OMAP_DSS_COLOR_RGB16: | |
1179 | case OMAP_DSS_COLOR_ARGB16: | |
1180 | case OMAP_DSS_COLOR_YUV2: | |
1181 | case OMAP_DSS_COLOR_UYVY: | |
1182 | return 16; | |
1183 | case OMAP_DSS_COLOR_RGB24P: | |
1184 | return 24; | |
1185 | case OMAP_DSS_COLOR_RGB24U: | |
1186 | case OMAP_DSS_COLOR_ARGB32: | |
1187 | case OMAP_DSS_COLOR_RGBA32: | |
1188 | case OMAP_DSS_COLOR_RGBX32: | |
1189 | return 32; | |
1190 | default: | |
1191 | BUG(); | |
1192 | } | |
1193 | } | |
1194 | ||
1195 | static s32 pixinc(int pixels, u8 ps) | |
1196 | { | |
1197 | if (pixels == 1) | |
1198 | return 1; | |
1199 | else if (pixels > 1) | |
1200 | return 1 + (pixels - 1) * ps; | |
1201 | else if (pixels < 0) | |
1202 | return 1 - (-pixels + 1) * ps; | |
1203 | else | |
1204 | BUG(); | |
1205 | } | |
1206 | ||
1207 | static void calc_vrfb_rotation_offset(u8 rotation, bool mirror, | |
1208 | u16 screen_width, | |
1209 | u16 width, u16 height, | |
1210 | enum omap_color_mode color_mode, bool fieldmode, | |
1211 | unsigned int field_offset, | |
1212 | unsigned *offset0, unsigned *offset1, | |
1213 | s32 *row_inc, s32 *pix_inc) | |
1214 | { | |
1215 | u8 ps; | |
1216 | ||
1217 | /* FIXME CLUT formats */ | |
1218 | switch (color_mode) { | |
1219 | case OMAP_DSS_COLOR_CLUT1: | |
1220 | case OMAP_DSS_COLOR_CLUT2: | |
1221 | case OMAP_DSS_COLOR_CLUT4: | |
1222 | case OMAP_DSS_COLOR_CLUT8: | |
1223 | BUG(); | |
1224 | return; | |
1225 | case OMAP_DSS_COLOR_YUV2: | |
1226 | case OMAP_DSS_COLOR_UYVY: | |
1227 | ps = 4; | |
1228 | break; | |
1229 | default: | |
1230 | ps = color_mode_to_bpp(color_mode) / 8; | |
1231 | break; | |
1232 | } | |
1233 | ||
1234 | DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width, | |
1235 | width, height); | |
1236 | ||
1237 | /* | |
1238 | * field 0 = even field = bottom field | |
1239 | * field 1 = odd field = top field | |
1240 | */ | |
1241 | switch (rotation + mirror * 4) { | |
1242 | case OMAP_DSS_ROT_0: | |
1243 | case OMAP_DSS_ROT_180: | |
1244 | /* | |
1245 | * If the pixel format is YUV or UYVY divide the width | |
1246 | * of the image by 2 for 0 and 180 degree rotation. | |
1247 | */ | |
1248 | if (color_mode == OMAP_DSS_COLOR_YUV2 || | |
1249 | color_mode == OMAP_DSS_COLOR_UYVY) | |
1250 | width = width >> 1; | |
1251 | case OMAP_DSS_ROT_90: | |
1252 | case OMAP_DSS_ROT_270: | |
1253 | *offset1 = 0; | |
1254 | if (field_offset) | |
1255 | *offset0 = field_offset * screen_width * ps; | |
1256 | else | |
1257 | *offset0 = 0; | |
1258 | ||
1259 | *row_inc = pixinc(1 + (screen_width - width) + | |
1260 | (fieldmode ? screen_width : 0), | |
1261 | ps); | |
1262 | *pix_inc = pixinc(1, ps); | |
1263 | break; | |
1264 | ||
1265 | case OMAP_DSS_ROT_0 + 4: | |
1266 | case OMAP_DSS_ROT_180 + 4: | |
1267 | /* If the pixel format is YUV or UYVY divide the width | |
1268 | * of the image by 2 for 0 degree and 180 degree | |
1269 | */ | |
1270 | if (color_mode == OMAP_DSS_COLOR_YUV2 || | |
1271 | color_mode == OMAP_DSS_COLOR_UYVY) | |
1272 | width = width >> 1; | |
1273 | case OMAP_DSS_ROT_90 + 4: | |
1274 | case OMAP_DSS_ROT_270 + 4: | |
1275 | *offset1 = 0; | |
1276 | if (field_offset) | |
1277 | *offset0 = field_offset * screen_width * ps; | |
1278 | else | |
1279 | *offset0 = 0; | |
1280 | *row_inc = pixinc(1 - (screen_width + width) - | |
1281 | (fieldmode ? screen_width : 0), | |
1282 | ps); | |
1283 | *pix_inc = pixinc(1, ps); | |
1284 | break; | |
1285 | ||
1286 | default: | |
1287 | BUG(); | |
1288 | } | |
1289 | } | |
1290 | ||
1291 | static void calc_dma_rotation_offset(u8 rotation, bool mirror, | |
1292 | u16 screen_width, | |
1293 | u16 width, u16 height, | |
1294 | enum omap_color_mode color_mode, bool fieldmode, | |
1295 | unsigned int field_offset, | |
1296 | unsigned *offset0, unsigned *offset1, | |
1297 | s32 *row_inc, s32 *pix_inc) | |
1298 | { | |
1299 | u8 ps; | |
1300 | u16 fbw, fbh; | |
1301 | ||
1302 | /* FIXME CLUT formats */ | |
1303 | switch (color_mode) { | |
1304 | case OMAP_DSS_COLOR_CLUT1: | |
1305 | case OMAP_DSS_COLOR_CLUT2: | |
1306 | case OMAP_DSS_COLOR_CLUT4: | |
1307 | case OMAP_DSS_COLOR_CLUT8: | |
1308 | BUG(); | |
1309 | return; | |
1310 | default: | |
1311 | ps = color_mode_to_bpp(color_mode) / 8; | |
1312 | break; | |
1313 | } | |
1314 | ||
1315 | DSSDBG("calc_rot(%d): scrw %d, %dx%d\n", rotation, screen_width, | |
1316 | width, height); | |
1317 | ||
1318 | /* width & height are overlay sizes, convert to fb sizes */ | |
1319 | ||
1320 | if (rotation == OMAP_DSS_ROT_0 || rotation == OMAP_DSS_ROT_180) { | |
1321 | fbw = width; | |
1322 | fbh = height; | |
1323 | } else { | |
1324 | fbw = height; | |
1325 | fbh = width; | |
1326 | } | |
1327 | ||
1328 | /* | |
1329 | * field 0 = even field = bottom field | |
1330 | * field 1 = odd field = top field | |
1331 | */ | |
1332 | switch (rotation + mirror * 4) { | |
1333 | case OMAP_DSS_ROT_0: | |
1334 | *offset1 = 0; | |
1335 | if (field_offset) | |
1336 | *offset0 = *offset1 + field_offset * screen_width * ps; | |
1337 | else | |
1338 | *offset0 = *offset1; | |
1339 | *row_inc = pixinc(1 + (screen_width - fbw) + | |
1340 | (fieldmode ? screen_width : 0), | |
1341 | ps); | |
1342 | *pix_inc = pixinc(1, ps); | |
1343 | break; | |
1344 | case OMAP_DSS_ROT_90: | |
1345 | *offset1 = screen_width * (fbh - 1) * ps; | |
1346 | if (field_offset) | |
1347 | *offset0 = *offset1 + field_offset * ps; | |
1348 | else | |
1349 | *offset0 = *offset1; | |
1350 | *row_inc = pixinc(screen_width * (fbh - 1) + 1 + | |
1351 | (fieldmode ? 1 : 0), ps); | |
1352 | *pix_inc = pixinc(-screen_width, ps); | |
1353 | break; | |
1354 | case OMAP_DSS_ROT_180: | |
1355 | *offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps; | |
1356 | if (field_offset) | |
1357 | *offset0 = *offset1 - field_offset * screen_width * ps; | |
1358 | else | |
1359 | *offset0 = *offset1; | |
1360 | *row_inc = pixinc(-1 - | |
1361 | (screen_width - fbw) - | |
1362 | (fieldmode ? screen_width : 0), | |
1363 | ps); | |
1364 | *pix_inc = pixinc(-1, ps); | |
1365 | break; | |
1366 | case OMAP_DSS_ROT_270: | |
1367 | *offset1 = (fbw - 1) * ps; | |
1368 | if (field_offset) | |
1369 | *offset0 = *offset1 - field_offset * ps; | |
1370 | else | |
1371 | *offset0 = *offset1; | |
1372 | *row_inc = pixinc(-screen_width * (fbh - 1) - 1 - | |
1373 | (fieldmode ? 1 : 0), ps); | |
1374 | *pix_inc = pixinc(screen_width, ps); | |
1375 | break; | |
1376 | ||
1377 | /* mirroring */ | |
1378 | case OMAP_DSS_ROT_0 + 4: | |
1379 | *offset1 = (fbw - 1) * ps; | |
1380 | if (field_offset) | |
1381 | *offset0 = *offset1 + field_offset * screen_width * ps; | |
1382 | else | |
1383 | *offset0 = *offset1; | |
1384 | *row_inc = pixinc(screen_width * 2 - 1 + | |
1385 | (fieldmode ? screen_width : 0), | |
1386 | ps); | |
1387 | *pix_inc = pixinc(-1, ps); | |
1388 | break; | |
1389 | ||
1390 | case OMAP_DSS_ROT_90 + 4: | |
1391 | *offset1 = 0; | |
1392 | if (field_offset) | |
1393 | *offset0 = *offset1 + field_offset * ps; | |
1394 | else | |
1395 | *offset0 = *offset1; | |
1396 | *row_inc = pixinc(-screen_width * (fbh - 1) + 1 + | |
1397 | (fieldmode ? 1 : 0), | |
1398 | ps); | |
1399 | *pix_inc = pixinc(screen_width, ps); | |
1400 | break; | |
1401 | ||
1402 | case OMAP_DSS_ROT_180 + 4: | |
1403 | *offset1 = screen_width * (fbh - 1) * ps; | |
1404 | if (field_offset) | |
1405 | *offset0 = *offset1 - field_offset * screen_width * ps; | |
1406 | else | |
1407 | *offset0 = *offset1; | |
1408 | *row_inc = pixinc(1 - screen_width * 2 - | |
1409 | (fieldmode ? screen_width : 0), | |
1410 | ps); | |
1411 | *pix_inc = pixinc(1, ps); | |
1412 | break; | |
1413 | ||
1414 | case OMAP_DSS_ROT_270 + 4: | |
1415 | *offset1 = (screen_width * (fbh - 1) + fbw - 1) * ps; | |
1416 | if (field_offset) | |
1417 | *offset0 = *offset1 - field_offset * ps; | |
1418 | else | |
1419 | *offset0 = *offset1; | |
1420 | *row_inc = pixinc(screen_width * (fbh - 1) - 1 - | |
1421 | (fieldmode ? 1 : 0), | |
1422 | ps); | |
1423 | *pix_inc = pixinc(-screen_width, ps); | |
1424 | break; | |
1425 | ||
1426 | default: | |
1427 | BUG(); | |
1428 | } | |
1429 | } | |
1430 | ||
1431 | static unsigned long calc_fclk_five_taps(u16 width, u16 height, | |
1432 | u16 out_width, u16 out_height, enum omap_color_mode color_mode) | |
1433 | { | |
1434 | u32 fclk = 0; | |
1435 | /* FIXME venc pclk? */ | |
1436 | u64 tmp, pclk = dispc_pclk_rate(); | |
1437 | ||
1438 | if (height > out_height) { | |
1439 | /* FIXME get real display PPL */ | |
1440 | unsigned int ppl = 800; | |
1441 | ||
1442 | tmp = pclk * height * out_width; | |
1443 | do_div(tmp, 2 * out_height * ppl); | |
1444 | fclk = tmp; | |
1445 | ||
1446 | if (height > 2 * out_height && ppl != out_width) { | |
1447 | tmp = pclk * (height - 2 * out_height) * out_width; | |
1448 | do_div(tmp, 2 * out_height * (ppl - out_width)); | |
1449 | fclk = max(fclk, (u32) tmp); | |
1450 | } | |
1451 | } | |
1452 | ||
1453 | if (width > out_width) { | |
1454 | tmp = pclk * width; | |
1455 | do_div(tmp, out_width); | |
1456 | fclk = max(fclk, (u32) tmp); | |
1457 | ||
1458 | if (color_mode == OMAP_DSS_COLOR_RGB24U) | |
1459 | fclk <<= 1; | |
1460 | } | |
1461 | ||
1462 | return fclk; | |
1463 | } | |
1464 | ||
1465 | static unsigned long calc_fclk(u16 width, u16 height, | |
1466 | u16 out_width, u16 out_height) | |
1467 | { | |
1468 | unsigned int hf, vf; | |
1469 | ||
1470 | /* | |
1471 | * FIXME how to determine the 'A' factor | |
1472 | * for the no downscaling case ? | |
1473 | */ | |
1474 | ||
1475 | if (width > 3 * out_width) | |
1476 | hf = 4; | |
1477 | else if (width > 2 * out_width) | |
1478 | hf = 3; | |
1479 | else if (width > out_width) | |
1480 | hf = 2; | |
1481 | else | |
1482 | hf = 1; | |
1483 | ||
1484 | if (height > out_height) | |
1485 | vf = 2; | |
1486 | else | |
1487 | vf = 1; | |
1488 | ||
1489 | /* FIXME venc pclk? */ | |
1490 | return dispc_pclk_rate() * vf * hf; | |
1491 | } | |
1492 | ||
1493 | void dispc_set_channel_out(enum omap_plane plane, enum omap_channel channel_out) | |
1494 | { | |
1495 | enable_clocks(1); | |
1496 | _dispc_set_channel_out(plane, channel_out); | |
1497 | enable_clocks(0); | |
1498 | } | |
1499 | ||
1500 | static int _dispc_setup_plane(enum omap_plane plane, | |
1501 | u32 paddr, u16 screen_width, | |
1502 | u16 pos_x, u16 pos_y, | |
1503 | u16 width, u16 height, | |
1504 | u16 out_width, u16 out_height, | |
1505 | enum omap_color_mode color_mode, | |
1506 | bool ilace, | |
1507 | enum omap_dss_rotation_type rotation_type, | |
1508 | u8 rotation, int mirror, | |
1509 | u8 global_alpha) | |
1510 | { | |
1511 | const int maxdownscale = cpu_is_omap34xx() ? 4 : 2; | |
1512 | bool five_taps = 0; | |
1513 | bool fieldmode = 0; | |
1514 | int cconv = 0; | |
1515 | unsigned offset0, offset1; | |
1516 | s32 row_inc; | |
1517 | s32 pix_inc; | |
1518 | u16 frame_height = height; | |
1519 | unsigned int field_offset = 0; | |
1520 | ||
1521 | if (paddr == 0) | |
1522 | return -EINVAL; | |
1523 | ||
1524 | if (ilace && height == out_height) | |
1525 | fieldmode = 1; | |
1526 | ||
1527 | if (ilace) { | |
1528 | if (fieldmode) | |
1529 | height /= 2; | |
1530 | pos_y /= 2; | |
1531 | out_height /= 2; | |
1532 | ||
1533 | DSSDBG("adjusting for ilace: height %d, pos_y %d, " | |
1534 | "out_height %d\n", | |
1535 | height, pos_y, out_height); | |
1536 | } | |
1537 | ||
1538 | if (plane == OMAP_DSS_GFX) { | |
1539 | if (width != out_width || height != out_height) | |
1540 | return -EINVAL; | |
1541 | ||
1542 | switch (color_mode) { | |
1543 | case OMAP_DSS_COLOR_ARGB16: | |
1544 | case OMAP_DSS_COLOR_ARGB32: | |
1545 | case OMAP_DSS_COLOR_RGBA32: | |
1546 | case OMAP_DSS_COLOR_RGBX32: | |
1547 | if (cpu_is_omap24xx()) | |
1548 | return -EINVAL; | |
1549 | /* fall through */ | |
1550 | case OMAP_DSS_COLOR_RGB12U: | |
1551 | case OMAP_DSS_COLOR_RGB16: | |
1552 | case OMAP_DSS_COLOR_RGB24P: | |
1553 | case OMAP_DSS_COLOR_RGB24U: | |
1554 | break; | |
1555 | ||
1556 | default: | |
1557 | return -EINVAL; | |
1558 | } | |
1559 | } else { | |
1560 | /* video plane */ | |
1561 | ||
1562 | unsigned long fclk = 0; | |
1563 | ||
1564 | if (out_width < width / maxdownscale || | |
1565 | out_width > width * 8) | |
1566 | return -EINVAL; | |
1567 | ||
1568 | if (out_height < height / maxdownscale || | |
1569 | out_height > height * 8) | |
1570 | return -EINVAL; | |
1571 | ||
1572 | switch (color_mode) { | |
1573 | case OMAP_DSS_COLOR_RGBX32: | |
1574 | case OMAP_DSS_COLOR_RGB12U: | |
1575 | if (cpu_is_omap24xx()) | |
1576 | return -EINVAL; | |
1577 | /* fall through */ | |
1578 | case OMAP_DSS_COLOR_RGB16: | |
1579 | case OMAP_DSS_COLOR_RGB24P: | |
1580 | case OMAP_DSS_COLOR_RGB24U: | |
1581 | break; | |
1582 | ||
1583 | case OMAP_DSS_COLOR_ARGB16: | |
1584 | case OMAP_DSS_COLOR_ARGB32: | |
1585 | case OMAP_DSS_COLOR_RGBA32: | |
1586 | if (cpu_is_omap24xx()) | |
1587 | return -EINVAL; | |
1588 | if (plane == OMAP_DSS_VIDEO1) | |
1589 | return -EINVAL; | |
1590 | break; | |
1591 | ||
1592 | case OMAP_DSS_COLOR_YUV2: | |
1593 | case OMAP_DSS_COLOR_UYVY: | |
1594 | cconv = 1; | |
1595 | break; | |
1596 | ||
1597 | default: | |
1598 | return -EINVAL; | |
1599 | } | |
1600 | ||
1601 | /* Must use 5-tap filter? */ | |
1602 | five_taps = height > out_height * 2; | |
1603 | ||
1604 | if (!five_taps) { | |
1605 | fclk = calc_fclk(width, height, | |
1606 | out_width, out_height); | |
1607 | ||
1608 | /* Try 5-tap filter if 3-tap fclk is too high */ | |
1609 | if (cpu_is_omap34xx() && height > out_height && | |
1610 | fclk > dispc_fclk_rate()) | |
1611 | five_taps = true; | |
1612 | } | |
1613 | ||
1614 | if (width > (2048 >> five_taps)) { | |
1615 | DSSERR("failed to set up scaling, fclk too low\n"); | |
1616 | return -EINVAL; | |
1617 | } | |
1618 | ||
1619 | if (five_taps) | |
1620 | fclk = calc_fclk_five_taps(width, height, | |
1621 | out_width, out_height, color_mode); | |
1622 | ||
1623 | DSSDBG("required fclk rate = %lu Hz\n", fclk); | |
1624 | DSSDBG("current fclk rate = %lu Hz\n", dispc_fclk_rate()); | |
1625 | ||
1626 | if (fclk > dispc_fclk_rate()) { | |
1627 | DSSERR("failed to set up scaling, " | |
1628 | "required fclk rate = %lu Hz, " | |
1629 | "current fclk rate = %lu Hz\n", | |
1630 | fclk, dispc_fclk_rate()); | |
1631 | return -EINVAL; | |
1632 | } | |
1633 | } | |
1634 | ||
1635 | if (ilace && !fieldmode) { | |
1636 | /* | |
1637 | * when downscaling the bottom field may have to start several | |
1638 | * source lines below the top field. Unfortunately ACCUI | |
1639 | * registers will only hold the fractional part of the offset | |
1640 | * so the integer part must be added to the base address of the | |
1641 | * bottom field. | |
1642 | */ | |
1643 | if (!height || height == out_height) | |
1644 | field_offset = 0; | |
1645 | else | |
1646 | field_offset = height / out_height / 2; | |
1647 | } | |
1648 | ||
1649 | /* Fields are independent but interleaved in memory. */ | |
1650 | if (fieldmode) | |
1651 | field_offset = 1; | |
1652 | ||
1653 | if (rotation_type == OMAP_DSS_ROT_DMA) | |
1654 | calc_dma_rotation_offset(rotation, mirror, | |
1655 | screen_width, width, frame_height, color_mode, | |
1656 | fieldmode, field_offset, | |
1657 | &offset0, &offset1, &row_inc, &pix_inc); | |
1658 | else | |
1659 | calc_vrfb_rotation_offset(rotation, mirror, | |
1660 | screen_width, width, frame_height, color_mode, | |
1661 | fieldmode, field_offset, | |
1662 | &offset0, &offset1, &row_inc, &pix_inc); | |
1663 | ||
1664 | DSSDBG("offset0 %u, offset1 %u, row_inc %d, pix_inc %d\n", | |
1665 | offset0, offset1, row_inc, pix_inc); | |
1666 | ||
1667 | _dispc_set_color_mode(plane, color_mode); | |
1668 | ||
1669 | _dispc_set_plane_ba0(plane, paddr + offset0); | |
1670 | _dispc_set_plane_ba1(plane, paddr + offset1); | |
1671 | ||
1672 | _dispc_set_row_inc(plane, row_inc); | |
1673 | _dispc_set_pix_inc(plane, pix_inc); | |
1674 | ||
1675 | DSSDBG("%d,%d %dx%d -> %dx%d\n", pos_x, pos_y, width, height, | |
1676 | out_width, out_height); | |
1677 | ||
1678 | _dispc_set_plane_pos(plane, pos_x, pos_y); | |
1679 | ||
1680 | _dispc_set_pic_size(plane, width, height); | |
1681 | ||
1682 | if (plane != OMAP_DSS_GFX) { | |
1683 | _dispc_set_scaling(plane, width, height, | |
1684 | out_width, out_height, | |
1685 | ilace, five_taps, fieldmode); | |
1686 | _dispc_set_vid_size(plane, out_width, out_height); | |
1687 | _dispc_set_vid_color_conv(plane, cconv); | |
1688 | } | |
1689 | ||
1690 | _dispc_set_rotation_attrs(plane, rotation, mirror, color_mode); | |
1691 | ||
1692 | if (plane != OMAP_DSS_VIDEO1) | |
1693 | _dispc_setup_global_alpha(plane, global_alpha); | |
1694 | ||
1695 | return 0; | |
1696 | } | |
1697 | ||
1698 | static void _dispc_enable_plane(enum omap_plane plane, bool enable) | |
1699 | { | |
1700 | REG_FLD_MOD(dispc_reg_att[plane], enable ? 1 : 0, 0, 0); | |
1701 | } | |
1702 | ||
1703 | static void dispc_disable_isr(void *data, u32 mask) | |
1704 | { | |
1705 | struct completion *compl = data; | |
1706 | complete(compl); | |
1707 | } | |
1708 | ||
1709 | static void _enable_lcd_out(bool enable) | |
1710 | { | |
1711 | REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 0, 0); | |
1712 | } | |
1713 | ||
1714 | void dispc_enable_lcd_out(bool enable) | |
1715 | { | |
1716 | struct completion frame_done_completion; | |
1717 | bool is_on; | |
1718 | int r; | |
1719 | ||
1720 | enable_clocks(1); | |
1721 | ||
1722 | /* When we disable LCD output, we need to wait until frame is done. | |
1723 | * Otherwise the DSS is still working, and turning off the clocks | |
1724 | * prevents DSS from going to OFF mode */ | |
1725 | is_on = REG_GET(DISPC_CONTROL, 0, 0); | |
1726 | ||
1727 | if (!enable && is_on) { | |
1728 | init_completion(&frame_done_completion); | |
1729 | ||
1730 | r = omap_dispc_register_isr(dispc_disable_isr, | |
1731 | &frame_done_completion, | |
1732 | DISPC_IRQ_FRAMEDONE); | |
1733 | ||
1734 | if (r) | |
1735 | DSSERR("failed to register FRAMEDONE isr\n"); | |
1736 | } | |
1737 | ||
1738 | _enable_lcd_out(enable); | |
1739 | ||
1740 | if (!enable && is_on) { | |
1741 | if (!wait_for_completion_timeout(&frame_done_completion, | |
1742 | msecs_to_jiffies(100))) | |
1743 | DSSERR("timeout waiting for FRAME DONE\n"); | |
1744 | ||
1745 | r = omap_dispc_unregister_isr(dispc_disable_isr, | |
1746 | &frame_done_completion, | |
1747 | DISPC_IRQ_FRAMEDONE); | |
1748 | ||
1749 | if (r) | |
1750 | DSSERR("failed to unregister FRAMEDONE isr\n"); | |
1751 | } | |
1752 | ||
1753 | enable_clocks(0); | |
1754 | } | |
1755 | ||
1756 | static void _enable_digit_out(bool enable) | |
1757 | { | |
1758 | REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 1, 1); | |
1759 | } | |
1760 | ||
1761 | void dispc_enable_digit_out(bool enable) | |
1762 | { | |
1763 | struct completion frame_done_completion; | |
1764 | int r; | |
1765 | ||
1766 | enable_clocks(1); | |
1767 | ||
1768 | if (REG_GET(DISPC_CONTROL, 1, 1) == enable) { | |
1769 | enable_clocks(0); | |
1770 | return; | |
1771 | } | |
1772 | ||
1773 | if (enable) { | |
1774 | unsigned long flags; | |
1775 | /* When we enable digit output, we'll get an extra digit | |
1776 | * sync lost interrupt, that we need to ignore */ | |
1777 | spin_lock_irqsave(&dispc.irq_lock, flags); | |
1778 | dispc.irq_error_mask &= ~DISPC_IRQ_SYNC_LOST_DIGIT; | |
1779 | _omap_dispc_set_irqs(); | |
1780 | spin_unlock_irqrestore(&dispc.irq_lock, flags); | |
1781 | } | |
1782 | ||
1783 | /* When we disable digit output, we need to wait until fields are done. | |
1784 | * Otherwise the DSS is still working, and turning off the clocks | |
1785 | * prevents DSS from going to OFF mode. And when enabling, we need to | |
1786 | * wait for the extra sync losts */ | |
1787 | init_completion(&frame_done_completion); | |
1788 | ||
1789 | r = omap_dispc_register_isr(dispc_disable_isr, &frame_done_completion, | |
1790 | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD); | |
1791 | if (r) | |
1792 | DSSERR("failed to register EVSYNC isr\n"); | |
1793 | ||
1794 | _enable_digit_out(enable); | |
1795 | ||
1796 | /* XXX I understand from TRM that we should only wait for the | |
1797 | * current field to complete. But it seems we have to wait | |
1798 | * for both fields */ | |
1799 | if (!wait_for_completion_timeout(&frame_done_completion, | |
1800 | msecs_to_jiffies(100))) | |
1801 | DSSERR("timeout waiting for EVSYNC\n"); | |
1802 | ||
1803 | if (!wait_for_completion_timeout(&frame_done_completion, | |
1804 | msecs_to_jiffies(100))) | |
1805 | DSSERR("timeout waiting for EVSYNC\n"); | |
1806 | ||
1807 | r = omap_dispc_unregister_isr(dispc_disable_isr, | |
1808 | &frame_done_completion, | |
1809 | DISPC_IRQ_EVSYNC_EVEN | DISPC_IRQ_EVSYNC_ODD); | |
1810 | if (r) | |
1811 | DSSERR("failed to unregister EVSYNC isr\n"); | |
1812 | ||
1813 | if (enable) { | |
1814 | unsigned long flags; | |
1815 | spin_lock_irqsave(&dispc.irq_lock, flags); | |
1816 | dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR; | |
1817 | dispc_write_reg(DISPC_IRQSTATUS, DISPC_IRQ_SYNC_LOST_DIGIT); | |
1818 | _omap_dispc_set_irqs(); | |
1819 | spin_unlock_irqrestore(&dispc.irq_lock, flags); | |
1820 | } | |
1821 | ||
1822 | enable_clocks(0); | |
1823 | } | |
1824 | ||
1825 | void dispc_lcd_enable_signal_polarity(bool act_high) | |
1826 | { | |
1827 | enable_clocks(1); | |
1828 | REG_FLD_MOD(DISPC_CONTROL, act_high ? 1 : 0, 29, 29); | |
1829 | enable_clocks(0); | |
1830 | } | |
1831 | ||
1832 | void dispc_lcd_enable_signal(bool enable) | |
1833 | { | |
1834 | enable_clocks(1); | |
1835 | REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 28, 28); | |
1836 | enable_clocks(0); | |
1837 | } | |
1838 | ||
1839 | void dispc_pck_free_enable(bool enable) | |
1840 | { | |
1841 | enable_clocks(1); | |
1842 | REG_FLD_MOD(DISPC_CONTROL, enable ? 1 : 0, 27, 27); | |
1843 | enable_clocks(0); | |
1844 | } | |
1845 | ||
1846 | void dispc_enable_fifohandcheck(bool enable) | |
1847 | { | |
1848 | enable_clocks(1); | |
1849 | REG_FLD_MOD(DISPC_CONFIG, enable ? 1 : 0, 16, 16); | |
1850 | enable_clocks(0); | |
1851 | } | |
1852 | ||
1853 | ||
1854 | void dispc_set_lcd_display_type(enum omap_lcd_display_type type) | |
1855 | { | |
1856 | int mode; | |
1857 | ||
1858 | switch (type) { | |
1859 | case OMAP_DSS_LCD_DISPLAY_STN: | |
1860 | mode = 0; | |
1861 | break; | |
1862 | ||
1863 | case OMAP_DSS_LCD_DISPLAY_TFT: | |
1864 | mode = 1; | |
1865 | break; | |
1866 | ||
1867 | default: | |
1868 | BUG(); | |
1869 | return; | |
1870 | } | |
1871 | ||
1872 | enable_clocks(1); | |
1873 | REG_FLD_MOD(DISPC_CONTROL, mode, 3, 3); | |
1874 | enable_clocks(0); | |
1875 | } | |
1876 | ||
1877 | void dispc_set_loadmode(enum omap_dss_load_mode mode) | |
1878 | { | |
1879 | enable_clocks(1); | |
1880 | REG_FLD_MOD(DISPC_CONFIG, mode, 2, 1); | |
1881 | enable_clocks(0); | |
1882 | } | |
1883 | ||
1884 | ||
1885 | void dispc_set_default_color(enum omap_channel channel, u32 color) | |
1886 | { | |
1887 | const struct dispc_reg def_reg[] = { DISPC_DEFAULT_COLOR0, | |
1888 | DISPC_DEFAULT_COLOR1 }; | |
1889 | ||
1890 | enable_clocks(1); | |
1891 | dispc_write_reg(def_reg[channel], color); | |
1892 | enable_clocks(0); | |
1893 | } | |
1894 | ||
1895 | u32 dispc_get_default_color(enum omap_channel channel) | |
1896 | { | |
1897 | const struct dispc_reg def_reg[] = { DISPC_DEFAULT_COLOR0, | |
1898 | DISPC_DEFAULT_COLOR1 }; | |
1899 | u32 l; | |
1900 | ||
1901 | BUG_ON(channel != OMAP_DSS_CHANNEL_DIGIT && | |
1902 | channel != OMAP_DSS_CHANNEL_LCD); | |
1903 | ||
1904 | enable_clocks(1); | |
1905 | l = dispc_read_reg(def_reg[channel]); | |
1906 | enable_clocks(0); | |
1907 | ||
1908 | return l; | |
1909 | } | |
1910 | ||
1911 | void dispc_set_trans_key(enum omap_channel ch, | |
1912 | enum omap_dss_trans_key_type type, | |
1913 | u32 trans_key) | |
1914 | { | |
1915 | const struct dispc_reg tr_reg[] = { | |
1916 | DISPC_TRANS_COLOR0, DISPC_TRANS_COLOR1 }; | |
1917 | ||
1918 | enable_clocks(1); | |
1919 | if (ch == OMAP_DSS_CHANNEL_LCD) | |
1920 | REG_FLD_MOD(DISPC_CONFIG, type, 11, 11); | |
1921 | else /* OMAP_DSS_CHANNEL_DIGIT */ | |
1922 | REG_FLD_MOD(DISPC_CONFIG, type, 13, 13); | |
1923 | ||
1924 | dispc_write_reg(tr_reg[ch], trans_key); | |
1925 | enable_clocks(0); | |
1926 | } | |
1927 | ||
1928 | void dispc_get_trans_key(enum omap_channel ch, | |
1929 | enum omap_dss_trans_key_type *type, | |
1930 | u32 *trans_key) | |
1931 | { | |
1932 | const struct dispc_reg tr_reg[] = { | |
1933 | DISPC_TRANS_COLOR0, DISPC_TRANS_COLOR1 }; | |
1934 | ||
1935 | enable_clocks(1); | |
1936 | if (type) { | |
1937 | if (ch == OMAP_DSS_CHANNEL_LCD) | |
1938 | *type = REG_GET(DISPC_CONFIG, 11, 11); | |
1939 | else if (ch == OMAP_DSS_CHANNEL_DIGIT) | |
1940 | *type = REG_GET(DISPC_CONFIG, 13, 13); | |
1941 | else | |
1942 | BUG(); | |
1943 | } | |
1944 | ||
1945 | if (trans_key) | |
1946 | *trans_key = dispc_read_reg(tr_reg[ch]); | |
1947 | enable_clocks(0); | |
1948 | } | |
1949 | ||
1950 | void dispc_enable_trans_key(enum omap_channel ch, bool enable) | |
1951 | { | |
1952 | enable_clocks(1); | |
1953 | if (ch == OMAP_DSS_CHANNEL_LCD) | |
1954 | REG_FLD_MOD(DISPC_CONFIG, enable, 10, 10); | |
1955 | else /* OMAP_DSS_CHANNEL_DIGIT */ | |
1956 | REG_FLD_MOD(DISPC_CONFIG, enable, 12, 12); | |
1957 | enable_clocks(0); | |
1958 | } | |
1959 | void dispc_enable_alpha_blending(enum omap_channel ch, bool enable) | |
1960 | { | |
1961 | if (cpu_is_omap24xx()) | |
1962 | return; | |
1963 | ||
1964 | enable_clocks(1); | |
1965 | if (ch == OMAP_DSS_CHANNEL_LCD) | |
1966 | REG_FLD_MOD(DISPC_CONFIG, enable, 18, 18); | |
1967 | else /* OMAP_DSS_CHANNEL_DIGIT */ | |
1968 | REG_FLD_MOD(DISPC_CONFIG, enable, 19, 19); | |
1969 | enable_clocks(0); | |
1970 | } | |
1971 | bool dispc_alpha_blending_enabled(enum omap_channel ch) | |
1972 | { | |
1973 | bool enabled; | |
1974 | ||
1975 | if (cpu_is_omap24xx()) | |
1976 | return false; | |
1977 | ||
1978 | enable_clocks(1); | |
1979 | if (ch == OMAP_DSS_CHANNEL_LCD) | |
1980 | enabled = REG_GET(DISPC_CONFIG, 18, 18); | |
1981 | else if (ch == OMAP_DSS_CHANNEL_DIGIT) | |
1982 | enabled = REG_GET(DISPC_CONFIG, 18, 18); | |
1983 | else | |
1984 | BUG(); | |
1985 | enable_clocks(0); | |
1986 | ||
1987 | return enabled; | |
1988 | ||
1989 | } | |
1990 | ||
1991 | ||
1992 | bool dispc_trans_key_enabled(enum omap_channel ch) | |
1993 | { | |
1994 | bool enabled; | |
1995 | ||
1996 | enable_clocks(1); | |
1997 | if (ch == OMAP_DSS_CHANNEL_LCD) | |
1998 | enabled = REG_GET(DISPC_CONFIG, 10, 10); | |
1999 | else if (ch == OMAP_DSS_CHANNEL_DIGIT) | |
2000 | enabled = REG_GET(DISPC_CONFIG, 12, 12); | |
2001 | else | |
2002 | BUG(); | |
2003 | enable_clocks(0); | |
2004 | ||
2005 | return enabled; | |
2006 | } | |
2007 | ||
2008 | ||
2009 | void dispc_set_tft_data_lines(u8 data_lines) | |
2010 | { | |
2011 | int code; | |
2012 | ||
2013 | switch (data_lines) { | |
2014 | case 12: | |
2015 | code = 0; | |
2016 | break; | |
2017 | case 16: | |
2018 | code = 1; | |
2019 | break; | |
2020 | case 18: | |
2021 | code = 2; | |
2022 | break; | |
2023 | case 24: | |
2024 | code = 3; | |
2025 | break; | |
2026 | default: | |
2027 | BUG(); | |
2028 | return; | |
2029 | } | |
2030 | ||
2031 | enable_clocks(1); | |
2032 | REG_FLD_MOD(DISPC_CONTROL, code, 9, 8); | |
2033 | enable_clocks(0); | |
2034 | } | |
2035 | ||
2036 | void dispc_set_parallel_interface_mode(enum omap_parallel_interface_mode mode) | |
2037 | { | |
2038 | u32 l; | |
2039 | int stallmode; | |
2040 | int gpout0 = 1; | |
2041 | int gpout1; | |
2042 | ||
2043 | switch (mode) { | |
2044 | case OMAP_DSS_PARALLELMODE_BYPASS: | |
2045 | stallmode = 0; | |
2046 | gpout1 = 1; | |
2047 | break; | |
2048 | ||
2049 | case OMAP_DSS_PARALLELMODE_RFBI: | |
2050 | stallmode = 1; | |
2051 | gpout1 = 0; | |
2052 | break; | |
2053 | ||
2054 | case OMAP_DSS_PARALLELMODE_DSI: | |
2055 | stallmode = 1; | |
2056 | gpout1 = 1; | |
2057 | break; | |
2058 | ||
2059 | default: | |
2060 | BUG(); | |
2061 | return; | |
2062 | } | |
2063 | ||
2064 | enable_clocks(1); | |
2065 | ||
2066 | l = dispc_read_reg(DISPC_CONTROL); | |
2067 | ||
2068 | l = FLD_MOD(l, stallmode, 11, 11); | |
2069 | l = FLD_MOD(l, gpout0, 15, 15); | |
2070 | l = FLD_MOD(l, gpout1, 16, 16); | |
2071 | ||
2072 | dispc_write_reg(DISPC_CONTROL, l); | |
2073 | ||
2074 | enable_clocks(0); | |
2075 | } | |
2076 | ||
2077 | static bool _dispc_lcd_timings_ok(int hsw, int hfp, int hbp, | |
2078 | int vsw, int vfp, int vbp) | |
2079 | { | |
2080 | if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) { | |
2081 | if (hsw < 1 || hsw > 64 || | |
2082 | hfp < 1 || hfp > 256 || | |
2083 | hbp < 1 || hbp > 256 || | |
2084 | vsw < 1 || vsw > 64 || | |
2085 | vfp < 0 || vfp > 255 || | |
2086 | vbp < 0 || vbp > 255) | |
2087 | return false; | |
2088 | } else { | |
2089 | if (hsw < 1 || hsw > 256 || | |
2090 | hfp < 1 || hfp > 4096 || | |
2091 | hbp < 1 || hbp > 4096 || | |
2092 | vsw < 1 || vsw > 256 || | |
2093 | vfp < 0 || vfp > 4095 || | |
2094 | vbp < 0 || vbp > 4095) | |
2095 | return false; | |
2096 | } | |
2097 | ||
2098 | return true; | |
2099 | } | |
2100 | ||
2101 | bool dispc_lcd_timings_ok(struct omap_video_timings *timings) | |
2102 | { | |
2103 | return _dispc_lcd_timings_ok(timings->hsw, timings->hfp, | |
2104 | timings->hbp, timings->vsw, | |
2105 | timings->vfp, timings->vbp); | |
2106 | } | |
2107 | ||
2108 | static void _dispc_set_lcd_timings(int hsw, int hfp, int hbp, | |
2109 | int vsw, int vfp, int vbp) | |
2110 | { | |
2111 | u32 timing_h, timing_v; | |
2112 | ||
2113 | if (cpu_is_omap24xx() || omap_rev() < OMAP3430_REV_ES3_0) { | |
2114 | timing_h = FLD_VAL(hsw-1, 5, 0) | FLD_VAL(hfp-1, 15, 8) | | |
2115 | FLD_VAL(hbp-1, 27, 20); | |
2116 | ||
2117 | timing_v = FLD_VAL(vsw-1, 5, 0) | FLD_VAL(vfp, 15, 8) | | |
2118 | FLD_VAL(vbp, 27, 20); | |
2119 | } else { | |
2120 | timing_h = FLD_VAL(hsw-1, 7, 0) | FLD_VAL(hfp-1, 19, 8) | | |
2121 | FLD_VAL(hbp-1, 31, 20); | |
2122 | ||
2123 | timing_v = FLD_VAL(vsw-1, 7, 0) | FLD_VAL(vfp, 19, 8) | | |
2124 | FLD_VAL(vbp, 31, 20); | |
2125 | } | |
2126 | ||
2127 | enable_clocks(1); | |
2128 | dispc_write_reg(DISPC_TIMING_H, timing_h); | |
2129 | dispc_write_reg(DISPC_TIMING_V, timing_v); | |
2130 | enable_clocks(0); | |
2131 | } | |
2132 | ||
2133 | /* change name to mode? */ | |
2134 | void dispc_set_lcd_timings(struct omap_video_timings *timings) | |
2135 | { | |
2136 | unsigned xtot, ytot; | |
2137 | unsigned long ht, vt; | |
2138 | ||
2139 | if (!_dispc_lcd_timings_ok(timings->hsw, timings->hfp, | |
2140 | timings->hbp, timings->vsw, | |
2141 | timings->vfp, timings->vbp)) | |
2142 | BUG(); | |
2143 | ||
2144 | _dispc_set_lcd_timings(timings->hsw, timings->hfp, timings->hbp, | |
2145 | timings->vsw, timings->vfp, timings->vbp); | |
2146 | ||
2147 | dispc_set_lcd_size(timings->x_res, timings->y_res); | |
2148 | ||
2149 | xtot = timings->x_res + timings->hfp + timings->hsw + timings->hbp; | |
2150 | ytot = timings->y_res + timings->vfp + timings->vsw + timings->vbp; | |
2151 | ||
2152 | ht = (timings->pixel_clock * 1000) / xtot; | |
2153 | vt = (timings->pixel_clock * 1000) / xtot / ytot; | |
2154 | ||
2155 | DSSDBG("xres %u yres %u\n", timings->x_res, timings->y_res); | |
2156 | DSSDBG("pck %u\n", timings->pixel_clock); | |
2157 | DSSDBG("hsw %d hfp %d hbp %d vsw %d vfp %d vbp %d\n", | |
2158 | timings->hsw, timings->hfp, timings->hbp, | |
2159 | timings->vsw, timings->vfp, timings->vbp); | |
2160 | ||
2161 | DSSDBG("hsync %luHz, vsync %luHz\n", ht, vt); | |
2162 | } | |
2163 | ||
2164 | static void dispc_set_lcd_divisor(u16 lck_div, u16 pck_div) | |
2165 | { | |
2166 | BUG_ON(lck_div < 1); | |
2167 | BUG_ON(pck_div < 2); | |
2168 | ||
2169 | enable_clocks(1); | |
2170 | dispc_write_reg(DISPC_DIVISOR, | |
2171 | FLD_VAL(lck_div, 23, 16) | FLD_VAL(pck_div, 7, 0)); | |
2172 | enable_clocks(0); | |
2173 | } | |
2174 | ||
2175 | static void dispc_get_lcd_divisor(int *lck_div, int *pck_div) | |
2176 | { | |
2177 | u32 l; | |
2178 | l = dispc_read_reg(DISPC_DIVISOR); | |
2179 | *lck_div = FLD_GET(l, 23, 16); | |
2180 | *pck_div = FLD_GET(l, 7, 0); | |
2181 | } | |
2182 | ||
2183 | unsigned long dispc_fclk_rate(void) | |
2184 | { | |
2185 | unsigned long r = 0; | |
2186 | ||
2187 | if (dss_get_dispc_clk_source() == 0) | |
2188 | r = dss_clk_get_rate(DSS_CLK_FCK1); | |
2189 | else | |
2190 | #ifdef CONFIG_OMAP2_DSS_DSI | |
2191 | r = dsi_get_dsi1_pll_rate(); | |
2192 | #else | |
2193 | BUG(); | |
2194 | #endif | |
2195 | return r; | |
2196 | } | |
2197 | ||
2198 | unsigned long dispc_lclk_rate(void) | |
2199 | { | |
2200 | int lcd; | |
2201 | unsigned long r; | |
2202 | u32 l; | |
2203 | ||
2204 | l = dispc_read_reg(DISPC_DIVISOR); | |
2205 | ||
2206 | lcd = FLD_GET(l, 23, 16); | |
2207 | ||
2208 | r = dispc_fclk_rate(); | |
2209 | ||
2210 | return r / lcd; | |
2211 | } | |
2212 | ||
2213 | unsigned long dispc_pclk_rate(void) | |
2214 | { | |
2215 | int lcd, pcd; | |
2216 | unsigned long r; | |
2217 | u32 l; | |
2218 | ||
2219 | l = dispc_read_reg(DISPC_DIVISOR); | |
2220 | ||
2221 | lcd = FLD_GET(l, 23, 16); | |
2222 | pcd = FLD_GET(l, 7, 0); | |
2223 | ||
2224 | r = dispc_fclk_rate(); | |
2225 | ||
2226 | return r / lcd / pcd; | |
2227 | } | |
2228 | ||
2229 | void dispc_dump_clocks(struct seq_file *s) | |
2230 | { | |
2231 | int lcd, pcd; | |
2232 | ||
2233 | enable_clocks(1); | |
2234 | ||
2235 | dispc_get_lcd_divisor(&lcd, &pcd); | |
2236 | ||
2237 | seq_printf(s, "- DISPC -\n"); | |
2238 | ||
2239 | seq_printf(s, "dispc fclk source = %s\n", | |
2240 | dss_get_dispc_clk_source() == 0 ? | |
2241 | "dss1_alwon_fclk" : "dsi1_pll_fclk"); | |
2242 | ||
2243 | seq_printf(s, "fck\t\t%-16lu\n", dispc_fclk_rate()); | |
2244 | seq_printf(s, "lck\t\t%-16lulck div\t%u\n", dispc_lclk_rate(), lcd); | |
2245 | seq_printf(s, "pck\t\t%-16lupck div\t%u\n", dispc_pclk_rate(), pcd); | |
2246 | ||
2247 | enable_clocks(0); | |
2248 | } | |
2249 | ||
2250 | void dispc_dump_regs(struct seq_file *s) | |
2251 | { | |
2252 | #define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, dispc_read_reg(r)) | |
2253 | ||
2254 | dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); | |
2255 | ||
2256 | DUMPREG(DISPC_REVISION); | |
2257 | DUMPREG(DISPC_SYSCONFIG); | |
2258 | DUMPREG(DISPC_SYSSTATUS); | |
2259 | DUMPREG(DISPC_IRQSTATUS); | |
2260 | DUMPREG(DISPC_IRQENABLE); | |
2261 | DUMPREG(DISPC_CONTROL); | |
2262 | DUMPREG(DISPC_CONFIG); | |
2263 | DUMPREG(DISPC_CAPABLE); | |
2264 | DUMPREG(DISPC_DEFAULT_COLOR0); | |
2265 | DUMPREG(DISPC_DEFAULT_COLOR1); | |
2266 | DUMPREG(DISPC_TRANS_COLOR0); | |
2267 | DUMPREG(DISPC_TRANS_COLOR1); | |
2268 | DUMPREG(DISPC_LINE_STATUS); | |
2269 | DUMPREG(DISPC_LINE_NUMBER); | |
2270 | DUMPREG(DISPC_TIMING_H); | |
2271 | DUMPREG(DISPC_TIMING_V); | |
2272 | DUMPREG(DISPC_POL_FREQ); | |
2273 | DUMPREG(DISPC_DIVISOR); | |
2274 | DUMPREG(DISPC_GLOBAL_ALPHA); | |
2275 | DUMPREG(DISPC_SIZE_DIG); | |
2276 | DUMPREG(DISPC_SIZE_LCD); | |
2277 | ||
2278 | DUMPREG(DISPC_GFX_BA0); | |
2279 | DUMPREG(DISPC_GFX_BA1); | |
2280 | DUMPREG(DISPC_GFX_POSITION); | |
2281 | DUMPREG(DISPC_GFX_SIZE); | |
2282 | DUMPREG(DISPC_GFX_ATTRIBUTES); | |
2283 | DUMPREG(DISPC_GFX_FIFO_THRESHOLD); | |
2284 | DUMPREG(DISPC_GFX_FIFO_SIZE_STATUS); | |
2285 | DUMPREG(DISPC_GFX_ROW_INC); | |
2286 | DUMPREG(DISPC_GFX_PIXEL_INC); | |
2287 | DUMPREG(DISPC_GFX_WINDOW_SKIP); | |
2288 | DUMPREG(DISPC_GFX_TABLE_BA); | |
2289 | ||
2290 | DUMPREG(DISPC_DATA_CYCLE1); | |
2291 | DUMPREG(DISPC_DATA_CYCLE2); | |
2292 | DUMPREG(DISPC_DATA_CYCLE3); | |
2293 | ||
2294 | DUMPREG(DISPC_CPR_COEF_R); | |
2295 | DUMPREG(DISPC_CPR_COEF_G); | |
2296 | DUMPREG(DISPC_CPR_COEF_B); | |
2297 | ||
2298 | DUMPREG(DISPC_GFX_PRELOAD); | |
2299 | ||
2300 | DUMPREG(DISPC_VID_BA0(0)); | |
2301 | DUMPREG(DISPC_VID_BA1(0)); | |
2302 | DUMPREG(DISPC_VID_POSITION(0)); | |
2303 | DUMPREG(DISPC_VID_SIZE(0)); | |
2304 | DUMPREG(DISPC_VID_ATTRIBUTES(0)); | |
2305 | DUMPREG(DISPC_VID_FIFO_THRESHOLD(0)); | |
2306 | DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(0)); | |
2307 | DUMPREG(DISPC_VID_ROW_INC(0)); | |
2308 | DUMPREG(DISPC_VID_PIXEL_INC(0)); | |
2309 | DUMPREG(DISPC_VID_FIR(0)); | |
2310 | DUMPREG(DISPC_VID_PICTURE_SIZE(0)); | |
2311 | DUMPREG(DISPC_VID_ACCU0(0)); | |
2312 | DUMPREG(DISPC_VID_ACCU1(0)); | |
2313 | ||
2314 | DUMPREG(DISPC_VID_BA0(1)); | |
2315 | DUMPREG(DISPC_VID_BA1(1)); | |
2316 | DUMPREG(DISPC_VID_POSITION(1)); | |
2317 | DUMPREG(DISPC_VID_SIZE(1)); | |
2318 | DUMPREG(DISPC_VID_ATTRIBUTES(1)); | |
2319 | DUMPREG(DISPC_VID_FIFO_THRESHOLD(1)); | |
2320 | DUMPREG(DISPC_VID_FIFO_SIZE_STATUS(1)); | |
2321 | DUMPREG(DISPC_VID_ROW_INC(1)); | |
2322 | DUMPREG(DISPC_VID_PIXEL_INC(1)); | |
2323 | DUMPREG(DISPC_VID_FIR(1)); | |
2324 | DUMPREG(DISPC_VID_PICTURE_SIZE(1)); | |
2325 | DUMPREG(DISPC_VID_ACCU0(1)); | |
2326 | DUMPREG(DISPC_VID_ACCU1(1)); | |
2327 | ||
2328 | DUMPREG(DISPC_VID_FIR_COEF_H(0, 0)); | |
2329 | DUMPREG(DISPC_VID_FIR_COEF_H(0, 1)); | |
2330 | DUMPREG(DISPC_VID_FIR_COEF_H(0, 2)); | |
2331 | DUMPREG(DISPC_VID_FIR_COEF_H(0, 3)); | |
2332 | DUMPREG(DISPC_VID_FIR_COEF_H(0, 4)); | |
2333 | DUMPREG(DISPC_VID_FIR_COEF_H(0, 5)); | |
2334 | DUMPREG(DISPC_VID_FIR_COEF_H(0, 6)); | |
2335 | DUMPREG(DISPC_VID_FIR_COEF_H(0, 7)); | |
2336 | DUMPREG(DISPC_VID_FIR_COEF_HV(0, 0)); | |
2337 | DUMPREG(DISPC_VID_FIR_COEF_HV(0, 1)); | |
2338 | DUMPREG(DISPC_VID_FIR_COEF_HV(0, 2)); | |
2339 | DUMPREG(DISPC_VID_FIR_COEF_HV(0, 3)); | |
2340 | DUMPREG(DISPC_VID_FIR_COEF_HV(0, 4)); | |
2341 | DUMPREG(DISPC_VID_FIR_COEF_HV(0, 5)); | |
2342 | DUMPREG(DISPC_VID_FIR_COEF_HV(0, 6)); | |
2343 | DUMPREG(DISPC_VID_FIR_COEF_HV(0, 7)); | |
2344 | DUMPREG(DISPC_VID_CONV_COEF(0, 0)); | |
2345 | DUMPREG(DISPC_VID_CONV_COEF(0, 1)); | |
2346 | DUMPREG(DISPC_VID_CONV_COEF(0, 2)); | |
2347 | DUMPREG(DISPC_VID_CONV_COEF(0, 3)); | |
2348 | DUMPREG(DISPC_VID_CONV_COEF(0, 4)); | |
2349 | DUMPREG(DISPC_VID_FIR_COEF_V(0, 0)); | |
2350 | DUMPREG(DISPC_VID_FIR_COEF_V(0, 1)); | |
2351 | DUMPREG(DISPC_VID_FIR_COEF_V(0, 2)); | |
2352 | DUMPREG(DISPC_VID_FIR_COEF_V(0, 3)); | |
2353 | DUMPREG(DISPC_VID_FIR_COEF_V(0, 4)); | |
2354 | DUMPREG(DISPC_VID_FIR_COEF_V(0, 5)); | |
2355 | DUMPREG(DISPC_VID_FIR_COEF_V(0, 6)); | |
2356 | DUMPREG(DISPC_VID_FIR_COEF_V(0, 7)); | |
2357 | ||
2358 | DUMPREG(DISPC_VID_FIR_COEF_H(1, 0)); | |
2359 | DUMPREG(DISPC_VID_FIR_COEF_H(1, 1)); | |
2360 | DUMPREG(DISPC_VID_FIR_COEF_H(1, 2)); | |
2361 | DUMPREG(DISPC_VID_FIR_COEF_H(1, 3)); | |
2362 | DUMPREG(DISPC_VID_FIR_COEF_H(1, 4)); | |
2363 | DUMPREG(DISPC_VID_FIR_COEF_H(1, 5)); | |
2364 | DUMPREG(DISPC_VID_FIR_COEF_H(1, 6)); | |
2365 | DUMPREG(DISPC_VID_FIR_COEF_H(1, 7)); | |
2366 | DUMPREG(DISPC_VID_FIR_COEF_HV(1, 0)); | |
2367 | DUMPREG(DISPC_VID_FIR_COEF_HV(1, 1)); | |
2368 | DUMPREG(DISPC_VID_FIR_COEF_HV(1, 2)); | |
2369 | DUMPREG(DISPC_VID_FIR_COEF_HV(1, 3)); | |
2370 | DUMPREG(DISPC_VID_FIR_COEF_HV(1, 4)); | |
2371 | DUMPREG(DISPC_VID_FIR_COEF_HV(1, 5)); | |
2372 | DUMPREG(DISPC_VID_FIR_COEF_HV(1, 6)); | |
2373 | DUMPREG(DISPC_VID_FIR_COEF_HV(1, 7)); | |
2374 | DUMPREG(DISPC_VID_CONV_COEF(1, 0)); | |
2375 | DUMPREG(DISPC_VID_CONV_COEF(1, 1)); | |
2376 | DUMPREG(DISPC_VID_CONV_COEF(1, 2)); | |
2377 | DUMPREG(DISPC_VID_CONV_COEF(1, 3)); | |
2378 | DUMPREG(DISPC_VID_CONV_COEF(1, 4)); | |
2379 | DUMPREG(DISPC_VID_FIR_COEF_V(1, 0)); | |
2380 | DUMPREG(DISPC_VID_FIR_COEF_V(1, 1)); | |
2381 | DUMPREG(DISPC_VID_FIR_COEF_V(1, 2)); | |
2382 | DUMPREG(DISPC_VID_FIR_COEF_V(1, 3)); | |
2383 | DUMPREG(DISPC_VID_FIR_COEF_V(1, 4)); | |
2384 | DUMPREG(DISPC_VID_FIR_COEF_V(1, 5)); | |
2385 | DUMPREG(DISPC_VID_FIR_COEF_V(1, 6)); | |
2386 | DUMPREG(DISPC_VID_FIR_COEF_V(1, 7)); | |
2387 | ||
2388 | DUMPREG(DISPC_VID_PRELOAD(0)); | |
2389 | DUMPREG(DISPC_VID_PRELOAD(1)); | |
2390 | ||
2391 | dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); | |
2392 | #undef DUMPREG | |
2393 | } | |
2394 | ||
2395 | static void _dispc_set_pol_freq(bool onoff, bool rf, bool ieo, bool ipc, | |
2396 | bool ihs, bool ivs, u8 acbi, u8 acb) | |
2397 | { | |
2398 | u32 l = 0; | |
2399 | ||
2400 | DSSDBG("onoff %d rf %d ieo %d ipc %d ihs %d ivs %d acbi %d acb %d\n", | |
2401 | onoff, rf, ieo, ipc, ihs, ivs, acbi, acb); | |
2402 | ||
2403 | l |= FLD_VAL(onoff, 17, 17); | |
2404 | l |= FLD_VAL(rf, 16, 16); | |
2405 | l |= FLD_VAL(ieo, 15, 15); | |
2406 | l |= FLD_VAL(ipc, 14, 14); | |
2407 | l |= FLD_VAL(ihs, 13, 13); | |
2408 | l |= FLD_VAL(ivs, 12, 12); | |
2409 | l |= FLD_VAL(acbi, 11, 8); | |
2410 | l |= FLD_VAL(acb, 7, 0); | |
2411 | ||
2412 | enable_clocks(1); | |
2413 | dispc_write_reg(DISPC_POL_FREQ, l); | |
2414 | enable_clocks(0); | |
2415 | } | |
2416 | ||
2417 | void dispc_set_pol_freq(enum omap_panel_config config, u8 acbi, u8 acb) | |
2418 | { | |
2419 | _dispc_set_pol_freq((config & OMAP_DSS_LCD_ONOFF) != 0, | |
2420 | (config & OMAP_DSS_LCD_RF) != 0, | |
2421 | (config & OMAP_DSS_LCD_IEO) != 0, | |
2422 | (config & OMAP_DSS_LCD_IPC) != 0, | |
2423 | (config & OMAP_DSS_LCD_IHS) != 0, | |
2424 | (config & OMAP_DSS_LCD_IVS) != 0, | |
2425 | acbi, acb); | |
2426 | } | |
2427 | ||
2428 | /* with fck as input clock rate, find dispc dividers that produce req_pck */ | |
2429 | void dispc_find_clk_divs(bool is_tft, unsigned long req_pck, unsigned long fck, | |
2430 | struct dispc_clock_info *cinfo) | |
2431 | { | |
2432 | u16 pcd_min = is_tft ? 2 : 3; | |
2433 | unsigned long best_pck; | |
2434 | u16 best_ld, cur_ld; | |
2435 | u16 best_pd, cur_pd; | |
2436 | ||
2437 | best_pck = 0; | |
2438 | best_ld = 0; | |
2439 | best_pd = 0; | |
2440 | ||
2441 | for (cur_ld = 1; cur_ld <= 255; ++cur_ld) { | |
2442 | unsigned long lck = fck / cur_ld; | |
2443 | ||
2444 | for (cur_pd = pcd_min; cur_pd <= 255; ++cur_pd) { | |
2445 | unsigned long pck = lck / cur_pd; | |
2446 | long old_delta = abs(best_pck - req_pck); | |
2447 | long new_delta = abs(pck - req_pck); | |
2448 | ||
2449 | if (best_pck == 0 || new_delta < old_delta) { | |
2450 | best_pck = pck; | |
2451 | best_ld = cur_ld; | |
2452 | best_pd = cur_pd; | |
2453 | ||
2454 | if (pck == req_pck) | |
2455 | goto found; | |
2456 | } | |
2457 | ||
2458 | if (pck < req_pck) | |
2459 | break; | |
2460 | } | |
2461 | ||
2462 | if (lck / pcd_min < req_pck) | |
2463 | break; | |
2464 | } | |
2465 | ||
2466 | found: | |
2467 | cinfo->lck_div = best_ld; | |
2468 | cinfo->pck_div = best_pd; | |
2469 | cinfo->lck = fck / cinfo->lck_div; | |
2470 | cinfo->pck = cinfo->lck / cinfo->pck_div; | |
2471 | } | |
2472 | ||
2473 | /* calculate clock rates using dividers in cinfo */ | |
2474 | int dispc_calc_clock_rates(unsigned long dispc_fclk_rate, | |
2475 | struct dispc_clock_info *cinfo) | |
2476 | { | |
2477 | if (cinfo->lck_div > 255 || cinfo->lck_div == 0) | |
2478 | return -EINVAL; | |
2479 | if (cinfo->pck_div < 2 || cinfo->pck_div > 255) | |
2480 | return -EINVAL; | |
2481 | ||
2482 | cinfo->lck = dispc_fclk_rate / cinfo->lck_div; | |
2483 | cinfo->pck = cinfo->lck / cinfo->pck_div; | |
2484 | ||
2485 | return 0; | |
2486 | } | |
2487 | ||
2488 | int dispc_set_clock_div(struct dispc_clock_info *cinfo) | |
2489 | { | |
2490 | DSSDBG("lck = %lu (%u)\n", cinfo->lck, cinfo->lck_div); | |
2491 | DSSDBG("pck = %lu (%u)\n", cinfo->pck, cinfo->pck_div); | |
2492 | ||
2493 | dispc_set_lcd_divisor(cinfo->lck_div, cinfo->pck_div); | |
2494 | ||
2495 | return 0; | |
2496 | } | |
2497 | ||
2498 | int dispc_get_clock_div(struct dispc_clock_info *cinfo) | |
2499 | { | |
2500 | unsigned long fck; | |
2501 | ||
2502 | fck = dispc_fclk_rate(); | |
2503 | ||
2504 | cinfo->lck_div = REG_GET(DISPC_DIVISOR, 23, 16); | |
2505 | cinfo->pck_div = REG_GET(DISPC_DIVISOR, 7, 0); | |
2506 | ||
2507 | cinfo->lck = fck / cinfo->lck_div; | |
2508 | cinfo->pck = cinfo->lck / cinfo->pck_div; | |
2509 | ||
2510 | return 0; | |
2511 | } | |
2512 | ||
2513 | /* dispc.irq_lock has to be locked by the caller */ | |
2514 | static void _omap_dispc_set_irqs(void) | |
2515 | { | |
2516 | u32 mask; | |
2517 | u32 old_mask; | |
2518 | int i; | |
2519 | struct omap_dispc_isr_data *isr_data; | |
2520 | ||
2521 | mask = dispc.irq_error_mask; | |
2522 | ||
2523 | for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { | |
2524 | isr_data = &dispc.registered_isr[i]; | |
2525 | ||
2526 | if (isr_data->isr == NULL) | |
2527 | continue; | |
2528 | ||
2529 | mask |= isr_data->mask; | |
2530 | } | |
2531 | ||
2532 | enable_clocks(1); | |
2533 | ||
2534 | old_mask = dispc_read_reg(DISPC_IRQENABLE); | |
2535 | /* clear the irqstatus for newly enabled irqs */ | |
2536 | dispc_write_reg(DISPC_IRQSTATUS, (mask ^ old_mask) & mask); | |
2537 | ||
2538 | dispc_write_reg(DISPC_IRQENABLE, mask); | |
2539 | ||
2540 | enable_clocks(0); | |
2541 | } | |
2542 | ||
2543 | int omap_dispc_register_isr(omap_dispc_isr_t isr, void *arg, u32 mask) | |
2544 | { | |
2545 | int i; | |
2546 | int ret; | |
2547 | unsigned long flags; | |
2548 | struct omap_dispc_isr_data *isr_data; | |
2549 | ||
2550 | if (isr == NULL) | |
2551 | return -EINVAL; | |
2552 | ||
2553 | spin_lock_irqsave(&dispc.irq_lock, flags); | |
2554 | ||
2555 | /* check for duplicate entry */ | |
2556 | for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { | |
2557 | isr_data = &dispc.registered_isr[i]; | |
2558 | if (isr_data->isr == isr && isr_data->arg == arg && | |
2559 | isr_data->mask == mask) { | |
2560 | ret = -EINVAL; | |
2561 | goto err; | |
2562 | } | |
2563 | } | |
2564 | ||
2565 | isr_data = NULL; | |
2566 | ret = -EBUSY; | |
2567 | ||
2568 | for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { | |
2569 | isr_data = &dispc.registered_isr[i]; | |
2570 | ||
2571 | if (isr_data->isr != NULL) | |
2572 | continue; | |
2573 | ||
2574 | isr_data->isr = isr; | |
2575 | isr_data->arg = arg; | |
2576 | isr_data->mask = mask; | |
2577 | ret = 0; | |
2578 | ||
2579 | break; | |
2580 | } | |
2581 | ||
2582 | _omap_dispc_set_irqs(); | |
2583 | ||
2584 | spin_unlock_irqrestore(&dispc.irq_lock, flags); | |
2585 | ||
2586 | return 0; | |
2587 | err: | |
2588 | spin_unlock_irqrestore(&dispc.irq_lock, flags); | |
2589 | ||
2590 | return ret; | |
2591 | } | |
2592 | EXPORT_SYMBOL(omap_dispc_register_isr); | |
2593 | ||
2594 | int omap_dispc_unregister_isr(omap_dispc_isr_t isr, void *arg, u32 mask) | |
2595 | { | |
2596 | int i; | |
2597 | unsigned long flags; | |
2598 | int ret = -EINVAL; | |
2599 | struct omap_dispc_isr_data *isr_data; | |
2600 | ||
2601 | spin_lock_irqsave(&dispc.irq_lock, flags); | |
2602 | ||
2603 | for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { | |
2604 | isr_data = &dispc.registered_isr[i]; | |
2605 | if (isr_data->isr != isr || isr_data->arg != arg || | |
2606 | isr_data->mask != mask) | |
2607 | continue; | |
2608 | ||
2609 | /* found the correct isr */ | |
2610 | ||
2611 | isr_data->isr = NULL; | |
2612 | isr_data->arg = NULL; | |
2613 | isr_data->mask = 0; | |
2614 | ||
2615 | ret = 0; | |
2616 | break; | |
2617 | } | |
2618 | ||
2619 | if (ret == 0) | |
2620 | _omap_dispc_set_irqs(); | |
2621 | ||
2622 | spin_unlock_irqrestore(&dispc.irq_lock, flags); | |
2623 | ||
2624 | return ret; | |
2625 | } | |
2626 | EXPORT_SYMBOL(omap_dispc_unregister_isr); | |
2627 | ||
2628 | #ifdef DEBUG | |
2629 | static void print_irq_status(u32 status) | |
2630 | { | |
2631 | if ((status & dispc.irq_error_mask) == 0) | |
2632 | return; | |
2633 | ||
2634 | printk(KERN_DEBUG "DISPC IRQ: 0x%x: ", status); | |
2635 | ||
2636 | #define PIS(x) \ | |
2637 | if (status & DISPC_IRQ_##x) \ | |
2638 | printk(#x " "); | |
2639 | PIS(GFX_FIFO_UNDERFLOW); | |
2640 | PIS(OCP_ERR); | |
2641 | PIS(VID1_FIFO_UNDERFLOW); | |
2642 | PIS(VID2_FIFO_UNDERFLOW); | |
2643 | PIS(SYNC_LOST); | |
2644 | PIS(SYNC_LOST_DIGIT); | |
2645 | #undef PIS | |
2646 | ||
2647 | printk("\n"); | |
2648 | } | |
2649 | #endif | |
2650 | ||
2651 | /* Called from dss.c. Note that we don't touch clocks here, | |
2652 | * but we presume they are on because we got an IRQ. However, | |
2653 | * an irq handler may turn the clocks off, so we may not have | |
2654 | * clock later in the function. */ | |
2655 | void dispc_irq_handler(void) | |
2656 | { | |
2657 | int i; | |
2658 | u32 irqstatus; | |
2659 | u32 handledirqs = 0; | |
2660 | u32 unhandled_errors; | |
2661 | struct omap_dispc_isr_data *isr_data; | |
2662 | struct omap_dispc_isr_data registered_isr[DISPC_MAX_NR_ISRS]; | |
2663 | ||
2664 | spin_lock(&dispc.irq_lock); | |
2665 | ||
2666 | irqstatus = dispc_read_reg(DISPC_IRQSTATUS); | |
2667 | ||
2668 | #ifdef DEBUG | |
2669 | if (dss_debug) | |
2670 | print_irq_status(irqstatus); | |
2671 | #endif | |
2672 | /* Ack the interrupt. Do it here before clocks are possibly turned | |
2673 | * off */ | |
2674 | dispc_write_reg(DISPC_IRQSTATUS, irqstatus); | |
2675 | /* flush posted write */ | |
2676 | dispc_read_reg(DISPC_IRQSTATUS); | |
2677 | ||
2678 | /* make a copy and unlock, so that isrs can unregister | |
2679 | * themselves */ | |
2680 | memcpy(registered_isr, dispc.registered_isr, | |
2681 | sizeof(registered_isr)); | |
2682 | ||
2683 | spin_unlock(&dispc.irq_lock); | |
2684 | ||
2685 | for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { | |
2686 | isr_data = ®istered_isr[i]; | |
2687 | ||
2688 | if (!isr_data->isr) | |
2689 | continue; | |
2690 | ||
2691 | if (isr_data->mask & irqstatus) { | |
2692 | isr_data->isr(isr_data->arg, irqstatus); | |
2693 | handledirqs |= isr_data->mask; | |
2694 | } | |
2695 | } | |
2696 | ||
2697 | spin_lock(&dispc.irq_lock); | |
2698 | ||
2699 | unhandled_errors = irqstatus & ~handledirqs & dispc.irq_error_mask; | |
2700 | ||
2701 | if (unhandled_errors) { | |
2702 | dispc.error_irqs |= unhandled_errors; | |
2703 | ||
2704 | dispc.irq_error_mask &= ~unhandled_errors; | |
2705 | _omap_dispc_set_irqs(); | |
2706 | ||
2707 | schedule_work(&dispc.error_work); | |
2708 | } | |
2709 | ||
2710 | spin_unlock(&dispc.irq_lock); | |
2711 | } | |
2712 | ||
2713 | static void dispc_error_worker(struct work_struct *work) | |
2714 | { | |
2715 | int i; | |
2716 | u32 errors; | |
2717 | unsigned long flags; | |
2718 | ||
2719 | spin_lock_irqsave(&dispc.irq_lock, flags); | |
2720 | errors = dispc.error_irqs; | |
2721 | dispc.error_irqs = 0; | |
2722 | spin_unlock_irqrestore(&dispc.irq_lock, flags); | |
2723 | ||
2724 | if (errors & DISPC_IRQ_GFX_FIFO_UNDERFLOW) { | |
2725 | DSSERR("GFX_FIFO_UNDERFLOW, disabling GFX\n"); | |
2726 | for (i = 0; i < omap_dss_get_num_overlays(); ++i) { | |
2727 | struct omap_overlay *ovl; | |
2728 | ovl = omap_dss_get_overlay(i); | |
2729 | ||
2730 | if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) | |
2731 | continue; | |
2732 | ||
2733 | if (ovl->id == 0) { | |
2734 | dispc_enable_plane(ovl->id, 0); | |
2735 | dispc_go(ovl->manager->id); | |
2736 | mdelay(50); | |
2737 | break; | |
2738 | } | |
2739 | } | |
2740 | } | |
2741 | ||
2742 | if (errors & DISPC_IRQ_VID1_FIFO_UNDERFLOW) { | |
2743 | DSSERR("VID1_FIFO_UNDERFLOW, disabling VID1\n"); | |
2744 | for (i = 0; i < omap_dss_get_num_overlays(); ++i) { | |
2745 | struct omap_overlay *ovl; | |
2746 | ovl = omap_dss_get_overlay(i); | |
2747 | ||
2748 | if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) | |
2749 | continue; | |
2750 | ||
2751 | if (ovl->id == 1) { | |
2752 | dispc_enable_plane(ovl->id, 0); | |
2753 | dispc_go(ovl->manager->id); | |
2754 | mdelay(50); | |
2755 | break; | |
2756 | } | |
2757 | } | |
2758 | } | |
2759 | ||
2760 | if (errors & DISPC_IRQ_VID2_FIFO_UNDERFLOW) { | |
2761 | DSSERR("VID2_FIFO_UNDERFLOW, disabling VID2\n"); | |
2762 | for (i = 0; i < omap_dss_get_num_overlays(); ++i) { | |
2763 | struct omap_overlay *ovl; | |
2764 | ovl = omap_dss_get_overlay(i); | |
2765 | ||
2766 | if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) | |
2767 | continue; | |
2768 | ||
2769 | if (ovl->id == 2) { | |
2770 | dispc_enable_plane(ovl->id, 0); | |
2771 | dispc_go(ovl->manager->id); | |
2772 | mdelay(50); | |
2773 | break; | |
2774 | } | |
2775 | } | |
2776 | } | |
2777 | ||
2778 | if (errors & DISPC_IRQ_SYNC_LOST) { | |
2779 | struct omap_overlay_manager *manager = NULL; | |
2780 | bool enable = false; | |
2781 | ||
2782 | DSSERR("SYNC_LOST, disabling LCD\n"); | |
2783 | ||
2784 | for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) { | |
2785 | struct omap_overlay_manager *mgr; | |
2786 | mgr = omap_dss_get_overlay_manager(i); | |
2787 | ||
2788 | if (mgr->id == OMAP_DSS_CHANNEL_LCD) { | |
2789 | manager = mgr; | |
2790 | enable = mgr->device->state == | |
2791 | OMAP_DSS_DISPLAY_ACTIVE; | |
2792 | mgr->device->disable(mgr->device); | |
2793 | break; | |
2794 | } | |
2795 | } | |
2796 | ||
2797 | if (manager) { | |
2798 | for (i = 0; i < omap_dss_get_num_overlays(); ++i) { | |
2799 | struct omap_overlay *ovl; | |
2800 | ovl = omap_dss_get_overlay(i); | |
2801 | ||
2802 | if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) | |
2803 | continue; | |
2804 | ||
2805 | if (ovl->id != 0 && ovl->manager == manager) | |
2806 | dispc_enable_plane(ovl->id, 0); | |
2807 | } | |
2808 | ||
2809 | dispc_go(manager->id); | |
2810 | mdelay(50); | |
2811 | if (enable) | |
2812 | manager->device->enable(manager->device); | |
2813 | } | |
2814 | } | |
2815 | ||
2816 | if (errors & DISPC_IRQ_SYNC_LOST_DIGIT) { | |
2817 | struct omap_overlay_manager *manager = NULL; | |
2818 | bool enable = false; | |
2819 | ||
2820 | DSSERR("SYNC_LOST_DIGIT, disabling TV\n"); | |
2821 | ||
2822 | for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) { | |
2823 | struct omap_overlay_manager *mgr; | |
2824 | mgr = omap_dss_get_overlay_manager(i); | |
2825 | ||
2826 | if (mgr->id == OMAP_DSS_CHANNEL_DIGIT) { | |
2827 | manager = mgr; | |
2828 | enable = mgr->device->state == | |
2829 | OMAP_DSS_DISPLAY_ACTIVE; | |
2830 | mgr->device->disable(mgr->device); | |
2831 | break; | |
2832 | } | |
2833 | } | |
2834 | ||
2835 | if (manager) { | |
2836 | for (i = 0; i < omap_dss_get_num_overlays(); ++i) { | |
2837 | struct omap_overlay *ovl; | |
2838 | ovl = omap_dss_get_overlay(i); | |
2839 | ||
2840 | if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC)) | |
2841 | continue; | |
2842 | ||
2843 | if (ovl->id != 0 && ovl->manager == manager) | |
2844 | dispc_enable_plane(ovl->id, 0); | |
2845 | } | |
2846 | ||
2847 | dispc_go(manager->id); | |
2848 | mdelay(50); | |
2849 | if (enable) | |
2850 | manager->device->enable(manager->device); | |
2851 | } | |
2852 | } | |
2853 | ||
2854 | if (errors & DISPC_IRQ_OCP_ERR) { | |
2855 | DSSERR("OCP_ERR\n"); | |
2856 | for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) { | |
2857 | struct omap_overlay_manager *mgr; | |
2858 | mgr = omap_dss_get_overlay_manager(i); | |
2859 | ||
2860 | if (mgr->caps & OMAP_DSS_OVL_CAP_DISPC) | |
2861 | mgr->device->disable(mgr->device); | |
2862 | } | |
2863 | } | |
2864 | ||
2865 | spin_lock_irqsave(&dispc.irq_lock, flags); | |
2866 | dispc.irq_error_mask |= errors; | |
2867 | _omap_dispc_set_irqs(); | |
2868 | spin_unlock_irqrestore(&dispc.irq_lock, flags); | |
2869 | } | |
2870 | ||
2871 | int omap_dispc_wait_for_irq_timeout(u32 irqmask, unsigned long timeout) | |
2872 | { | |
2873 | void dispc_irq_wait_handler(void *data, u32 mask) | |
2874 | { | |
2875 | complete((struct completion *)data); | |
2876 | } | |
2877 | ||
2878 | int r; | |
2879 | DECLARE_COMPLETION_ONSTACK(completion); | |
2880 | ||
2881 | r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion, | |
2882 | irqmask); | |
2883 | ||
2884 | if (r) | |
2885 | return r; | |
2886 | ||
2887 | timeout = wait_for_completion_timeout(&completion, timeout); | |
2888 | ||
2889 | omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask); | |
2890 | ||
2891 | if (timeout == 0) | |
2892 | return -ETIMEDOUT; | |
2893 | ||
2894 | if (timeout == -ERESTARTSYS) | |
2895 | return -ERESTARTSYS; | |
2896 | ||
2897 | return 0; | |
2898 | } | |
2899 | ||
2900 | int omap_dispc_wait_for_irq_interruptible_timeout(u32 irqmask, | |
2901 | unsigned long timeout) | |
2902 | { | |
2903 | void dispc_irq_wait_handler(void *data, u32 mask) | |
2904 | { | |
2905 | complete((struct completion *)data); | |
2906 | } | |
2907 | ||
2908 | int r; | |
2909 | DECLARE_COMPLETION_ONSTACK(completion); | |
2910 | ||
2911 | r = omap_dispc_register_isr(dispc_irq_wait_handler, &completion, | |
2912 | irqmask); | |
2913 | ||
2914 | if (r) | |
2915 | return r; | |
2916 | ||
2917 | timeout = wait_for_completion_interruptible_timeout(&completion, | |
2918 | timeout); | |
2919 | ||
2920 | omap_dispc_unregister_isr(dispc_irq_wait_handler, &completion, irqmask); | |
2921 | ||
2922 | if (timeout == 0) | |
2923 | return -ETIMEDOUT; | |
2924 | ||
2925 | if (timeout == -ERESTARTSYS) | |
2926 | return -ERESTARTSYS; | |
2927 | ||
2928 | return 0; | |
2929 | } | |
2930 | ||
2931 | #ifdef CONFIG_OMAP2_DSS_FAKE_VSYNC | |
2932 | void dispc_fake_vsync_irq(void) | |
2933 | { | |
2934 | u32 irqstatus = DISPC_IRQ_VSYNC; | |
2935 | int i; | |
2936 | ||
2937 | local_irq_disable(); | |
2938 | ||
2939 | for (i = 0; i < DISPC_MAX_NR_ISRS; i++) { | |
2940 | struct omap_dispc_isr_data *isr_data; | |
2941 | isr_data = &dispc.registered_isr[i]; | |
2942 | ||
2943 | if (!isr_data->isr) | |
2944 | continue; | |
2945 | ||
2946 | if (isr_data->mask & irqstatus) | |
2947 | isr_data->isr(isr_data->arg, irqstatus); | |
2948 | } | |
2949 | ||
2950 | local_irq_enable(); | |
2951 | } | |
2952 | #endif | |
2953 | ||
2954 | static void _omap_dispc_initialize_irq(void) | |
2955 | { | |
2956 | unsigned long flags; | |
2957 | ||
2958 | spin_lock_irqsave(&dispc.irq_lock, flags); | |
2959 | ||
2960 | memset(dispc.registered_isr, 0, sizeof(dispc.registered_isr)); | |
2961 | ||
2962 | dispc.irq_error_mask = DISPC_IRQ_MASK_ERROR; | |
2963 | ||
2964 | /* there's SYNC_LOST_DIGIT waiting after enabling the DSS, | |
2965 | * so clear it */ | |
2966 | dispc_write_reg(DISPC_IRQSTATUS, dispc_read_reg(DISPC_IRQSTATUS)); | |
2967 | ||
2968 | _omap_dispc_set_irqs(); | |
2969 | ||
2970 | spin_unlock_irqrestore(&dispc.irq_lock, flags); | |
2971 | } | |
2972 | ||
2973 | void dispc_enable_sidle(void) | |
2974 | { | |
2975 | REG_FLD_MOD(DISPC_SYSCONFIG, 2, 4, 3); /* SIDLEMODE: smart idle */ | |
2976 | } | |
2977 | ||
2978 | void dispc_disable_sidle(void) | |
2979 | { | |
2980 | REG_FLD_MOD(DISPC_SYSCONFIG, 1, 4, 3); /* SIDLEMODE: no idle */ | |
2981 | } | |
2982 | ||
2983 | static void _omap_dispc_initial_config(void) | |
2984 | { | |
2985 | u32 l; | |
2986 | ||
2987 | l = dispc_read_reg(DISPC_SYSCONFIG); | |
2988 | l = FLD_MOD(l, 2, 13, 12); /* MIDLEMODE: smart standby */ | |
2989 | l = FLD_MOD(l, 2, 4, 3); /* SIDLEMODE: smart idle */ | |
2990 | l = FLD_MOD(l, 1, 2, 2); /* ENWAKEUP */ | |
2991 | l = FLD_MOD(l, 1, 0, 0); /* AUTOIDLE */ | |
2992 | dispc_write_reg(DISPC_SYSCONFIG, l); | |
2993 | ||
2994 | /* FUNCGATED */ | |
2995 | REG_FLD_MOD(DISPC_CONFIG, 1, 9, 9); | |
2996 | ||
2997 | /* L3 firewall setting: enable access to OCM RAM */ | |
2998 | /* XXX this should be somewhere in plat-omap */ | |
2999 | if (cpu_is_omap24xx()) | |
3000 | __raw_writel(0x402000b0, OMAP2_L3_IO_ADDRESS(0x680050a0)); | |
3001 | ||
3002 | _dispc_setup_color_conv_coef(); | |
3003 | ||
3004 | dispc_set_loadmode(OMAP_DSS_LOAD_FRAME_ONLY); | |
3005 | ||
3006 | dispc_read_plane_fifo_sizes(); | |
3007 | } | |
3008 | ||
3009 | int dispc_init(void) | |
3010 | { | |
3011 | u32 rev; | |
3012 | ||
3013 | spin_lock_init(&dispc.irq_lock); | |
3014 | ||
3015 | INIT_WORK(&dispc.error_work, dispc_error_worker); | |
3016 | ||
3017 | dispc.base = ioremap(DISPC_BASE, DISPC_SZ_REGS); | |
3018 | if (!dispc.base) { | |
3019 | DSSERR("can't ioremap DISPC\n"); | |
3020 | return -ENOMEM; | |
3021 | } | |
3022 | ||
3023 | enable_clocks(1); | |
3024 | ||
3025 | _omap_dispc_initial_config(); | |
3026 | ||
3027 | _omap_dispc_initialize_irq(); | |
3028 | ||
3029 | dispc_save_context(); | |
3030 | ||
3031 | rev = dispc_read_reg(DISPC_REVISION); | |
3032 | printk(KERN_INFO "OMAP DISPC rev %d.%d\n", | |
3033 | FLD_GET(rev, 7, 4), FLD_GET(rev, 3, 0)); | |
3034 | ||
3035 | enable_clocks(0); | |
3036 | ||
3037 | return 0; | |
3038 | } | |
3039 | ||
3040 | void dispc_exit(void) | |
3041 | { | |
3042 | iounmap(dispc.base); | |
3043 | } | |
3044 | ||
3045 | int dispc_enable_plane(enum omap_plane plane, bool enable) | |
3046 | { | |
3047 | DSSDBG("dispc_enable_plane %d, %d\n", plane, enable); | |
3048 | ||
3049 | enable_clocks(1); | |
3050 | _dispc_enable_plane(plane, enable); | |
3051 | enable_clocks(0); | |
3052 | ||
3053 | return 0; | |
3054 | } | |
3055 | ||
3056 | int dispc_setup_plane(enum omap_plane plane, | |
3057 | u32 paddr, u16 screen_width, | |
3058 | u16 pos_x, u16 pos_y, | |
3059 | u16 width, u16 height, | |
3060 | u16 out_width, u16 out_height, | |
3061 | enum omap_color_mode color_mode, | |
3062 | bool ilace, | |
3063 | enum omap_dss_rotation_type rotation_type, | |
3064 | u8 rotation, bool mirror, u8 global_alpha) | |
3065 | { | |
3066 | int r = 0; | |
3067 | ||
3068 | DSSDBG("dispc_setup_plane %d, pa %x, sw %d, %d,%d, %dx%d -> " | |
3069 | "%dx%d, ilace %d, cmode %x, rot %d, mir %d\n", | |
3070 | plane, paddr, screen_width, pos_x, pos_y, | |
3071 | width, height, | |
3072 | out_width, out_height, | |
3073 | ilace, color_mode, | |
3074 | rotation, mirror); | |
3075 | ||
3076 | enable_clocks(1); | |
3077 | ||
3078 | r = _dispc_setup_plane(plane, | |
3079 | paddr, screen_width, | |
3080 | pos_x, pos_y, | |
3081 | width, height, | |
3082 | out_width, out_height, | |
3083 | color_mode, ilace, | |
3084 | rotation_type, | |
3085 | rotation, mirror, | |
3086 | global_alpha); | |
3087 | ||
3088 | enable_clocks(0); | |
3089 | ||
3090 | return r; | |
3091 | } |