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Add linux-next specific files for 20110831
[linux-2.6/next.git] / drivers / media / video / s5p-fimc / fimc-reg.c
blob4893b2d91d84606520f4901eebb1db5167254f0a
1 /*
2 * Register interface file for Samsung Camera Interface (FIMC) driver
3 *
4 * Copyright (c) 2010 Samsung Electronics
5 *
6 * Sylwester Nawrocki, s.nawrocki@samsung.com
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13 #include <linux/io.h>
14 #include <linux/delay.h>
15 #include <mach/map.h>
16 #include <media/s5p_fimc.h>
17
18 #include "fimc-core.h"
19
20
21 void fimc_hw_reset(struct fimc_dev *dev)
22 {
23 u32 cfg;
24
25 cfg = readl(dev->regs + S5P_CISRCFMT);
26 cfg |= S5P_CISRCFMT_ITU601_8BIT;
27 writel(cfg, dev->regs + S5P_CISRCFMT);
28
29 /* Software reset. */
30 cfg = readl(dev->regs + S5P_CIGCTRL);
31 cfg |= (S5P_CIGCTRL_SWRST | S5P_CIGCTRL_IRQ_LEVEL);
32 writel(cfg, dev->regs + S5P_CIGCTRL);
33 udelay(1000);
34
35 cfg = readl(dev->regs + S5P_CIGCTRL);
36 cfg &= ~S5P_CIGCTRL_SWRST;
37 writel(cfg, dev->regs + S5P_CIGCTRL);
38 }
39
40 static u32 fimc_hw_get_in_flip(struct fimc_ctx *ctx)
41 {
42 u32 flip = S5P_MSCTRL_FLIP_NORMAL;
43
44 switch (ctx->flip) {
45 case FLIP_X_AXIS:
46 flip = S5P_MSCTRL_FLIP_X_MIRROR;
47 break;
48 case FLIP_Y_AXIS:
49 flip = S5P_MSCTRL_FLIP_Y_MIRROR;
50 break;
51 case FLIP_XY_AXIS:
52 flip = S5P_MSCTRL_FLIP_180;
53 break;
54 default:
55 break;
56 }
57 if (ctx->rotation <= 90)
58 return flip;
59
60 return (flip ^ S5P_MSCTRL_FLIP_180) & S5P_MSCTRL_FLIP_180;
61 }
62
63 static u32 fimc_hw_get_target_flip(struct fimc_ctx *ctx)
64 {
65 u32 flip = S5P_CITRGFMT_FLIP_NORMAL;
66
67 switch (ctx->flip) {
68 case FLIP_X_AXIS:
69 flip = S5P_CITRGFMT_FLIP_X_MIRROR;
70 break;
71 case FLIP_Y_AXIS:
72 flip = S5P_CITRGFMT_FLIP_Y_MIRROR;
73 break;
74 case FLIP_XY_AXIS:
75 flip = S5P_CITRGFMT_FLIP_180;
76 break;
77 default:
78 break;
79 }
80 if (ctx->rotation <= 90)
81 return flip;
82
83 return (flip ^ S5P_CITRGFMT_FLIP_180) & S5P_CITRGFMT_FLIP_180;
84 }
85
86 void fimc_hw_set_rotation(struct fimc_ctx *ctx)
87 {
88 u32 cfg, flip;
89 struct fimc_dev *dev = ctx->fimc_dev;
90
91 cfg = readl(dev->regs + S5P_CITRGFMT);
92 cfg &= ~(S5P_CITRGFMT_INROT90 | S5P_CITRGFMT_OUTROT90 |
93 S5P_CITRGFMT_FLIP_180);
94
95 /*
96 * The input and output rotator cannot work simultaneously.
97 * Use the output rotator in output DMA mode or the input rotator
98 * in direct fifo output mode.
99 */
100 if (ctx->rotation == 90 || ctx->rotation == 270) {
101 if (ctx->out_path == FIMC_LCDFIFO)
102 cfg |= S5P_CITRGFMT_INROT90;
103 else
104 cfg |= S5P_CITRGFMT_OUTROT90;
105 }
106
107 if (ctx->out_path == FIMC_DMA) {
108 cfg |= fimc_hw_get_target_flip(ctx);
109 writel(cfg, dev->regs + S5P_CITRGFMT);
110 } else {
111 /* LCD FIFO path */
112 flip = readl(dev->regs + S5P_MSCTRL);
113 flip &= ~S5P_MSCTRL_FLIP_MASK;
114 flip |= fimc_hw_get_in_flip(ctx);
115 writel(flip, dev->regs + S5P_MSCTRL);
116 }
117 }
118
119 void fimc_hw_set_target_format(struct fimc_ctx *ctx)
120 {
121 u32 cfg;
122 struct fimc_dev *dev = ctx->fimc_dev;
123 struct fimc_frame *frame = &ctx->d_frame;
124
125 dbg("w= %d, h= %d color: %d", frame->width,
126 frame->height, frame->fmt->color);
127
128 cfg = readl(dev->regs + S5P_CITRGFMT);
129 cfg &= ~(S5P_CITRGFMT_FMT_MASK | S5P_CITRGFMT_HSIZE_MASK |
130 S5P_CITRGFMT_VSIZE_MASK);
131
132 switch (frame->fmt->color) {
133 case S5P_FIMC_RGB565...S5P_FIMC_RGB888:
134 cfg |= S5P_CITRGFMT_RGB;
135 break;
136 case S5P_FIMC_YCBCR420:
137 cfg |= S5P_CITRGFMT_YCBCR420;
138 break;
139 case S5P_FIMC_YCBYCR422...S5P_FIMC_CRYCBY422:
140 if (frame->fmt->colplanes == 1)
141 cfg |= S5P_CITRGFMT_YCBCR422_1P;
142 else
143 cfg |= S5P_CITRGFMT_YCBCR422;
144 break;
145 default:
146 break;
147 }
148
149 if (ctx->rotation == 90 || ctx->rotation == 270) {
150 cfg |= S5P_CITRGFMT_HSIZE(frame->height);
151 cfg |= S5P_CITRGFMT_VSIZE(frame->width);
152 } else {
153
154 cfg |= S5P_CITRGFMT_HSIZE(frame->width);
155 cfg |= S5P_CITRGFMT_VSIZE(frame->height);
156 }
157
158 writel(cfg, dev->regs + S5P_CITRGFMT);
159
160 cfg = readl(dev->regs + S5P_CITAREA) & ~S5P_CITAREA_MASK;
161 cfg |= (frame->width * frame->height);
162 writel(cfg, dev->regs + S5P_CITAREA);
163 }
164
165 static void fimc_hw_set_out_dma_size(struct fimc_ctx *ctx)
166 {
167 struct fimc_dev *dev = ctx->fimc_dev;
168 struct fimc_frame *frame = &ctx->d_frame;
169 u32 cfg;
170
171 cfg = S5P_ORIG_SIZE_HOR(frame->f_width);
172 cfg |= S5P_ORIG_SIZE_VER(frame->f_height);
173 writel(cfg, dev->regs + S5P_ORGOSIZE);
174
175 /* Select color space conversion equation (HD/SD size).*/
176 cfg = readl(dev->regs + S5P_CIGCTRL);
177 if (frame->f_width >= 1280) /* HD */
178 cfg |= S5P_CIGCTRL_CSC_ITU601_709;
179 else /* SD */
180 cfg &= ~S5P_CIGCTRL_CSC_ITU601_709;
181 writel(cfg, dev->regs + S5P_CIGCTRL);
182
183 }
184
185 void fimc_hw_set_out_dma(struct fimc_ctx *ctx)
186 {
187 u32 cfg;
188 struct fimc_dev *dev = ctx->fimc_dev;
189 struct fimc_frame *frame = &ctx->d_frame;
190 struct fimc_dma_offset *offset = &frame->dma_offset;
191
192 /* Set the input dma offsets. */
193 cfg = 0;
194 cfg |= S5P_CIO_OFFS_HOR(offset->y_h);
195 cfg |= S5P_CIO_OFFS_VER(offset->y_v);
196 writel(cfg, dev->regs + S5P_CIOYOFF);
197
198 cfg = 0;
199 cfg |= S5P_CIO_OFFS_HOR(offset->cb_h);
200 cfg |= S5P_CIO_OFFS_VER(offset->cb_v);
201 writel(cfg, dev->regs + S5P_CIOCBOFF);
202
203 cfg = 0;
204 cfg |= S5P_CIO_OFFS_HOR(offset->cr_h);
205 cfg |= S5P_CIO_OFFS_VER(offset->cr_v);
206 writel(cfg, dev->regs + S5P_CIOCROFF);
207
208 fimc_hw_set_out_dma_size(ctx);
209
210 /* Configure chroma components order. */
211 cfg = readl(dev->regs + S5P_CIOCTRL);
212
213 cfg &= ~(S5P_CIOCTRL_ORDER2P_MASK | S5P_CIOCTRL_ORDER422_MASK |
214 S5P_CIOCTRL_YCBCR_PLANE_MASK);
215
216 if (frame->fmt->colplanes == 1)
217 cfg |= ctx->out_order_1p;
218 else if (frame->fmt->colplanes == 2)
219 cfg |= ctx->out_order_2p | S5P_CIOCTRL_YCBCR_2PLANE;
220 else if (frame->fmt->colplanes == 3)
221 cfg |= S5P_CIOCTRL_YCBCR_3PLANE;
222
223 writel(cfg, dev->regs + S5P_CIOCTRL);
224 }
225
226 static void fimc_hw_en_autoload(struct fimc_dev *dev, int enable)
227 {
228 u32 cfg = readl(dev->regs + S5P_ORGISIZE);
229 if (enable)
230 cfg |= S5P_CIREAL_ISIZE_AUTOLOAD_EN;
231 else
232 cfg &= ~S5P_CIREAL_ISIZE_AUTOLOAD_EN;
233 writel(cfg, dev->regs + S5P_ORGISIZE);
234 }
235
236 void fimc_hw_en_lastirq(struct fimc_dev *dev, int enable)
237 {
238 u32 cfg = readl(dev->regs + S5P_CIOCTRL);
239 if (enable)
240 cfg |= S5P_CIOCTRL_LASTIRQ_ENABLE;
241 else
242 cfg &= ~S5P_CIOCTRL_LASTIRQ_ENABLE;
243 writel(cfg, dev->regs + S5P_CIOCTRL);
244 }
245
246 void fimc_hw_set_prescaler(struct fimc_ctx *ctx)
247 {
248 struct fimc_dev *dev = ctx->fimc_dev;
249 struct fimc_scaler *sc = &ctx->scaler;
250 u32 cfg, shfactor;
251
252 shfactor = 10 - (sc->hfactor + sc->vfactor);
253
254 cfg = S5P_CISCPRERATIO_SHFACTOR(shfactor);
255 cfg |= S5P_CISCPRERATIO_HOR(sc->pre_hratio);
256 cfg |= S5P_CISCPRERATIO_VER(sc->pre_vratio);
257 writel(cfg, dev->regs + S5P_CISCPRERATIO);
258
259 cfg = S5P_CISCPREDST_WIDTH(sc->pre_dst_width);
260 cfg |= S5P_CISCPREDST_HEIGHT(sc->pre_dst_height);
261 writel(cfg, dev->regs + S5P_CISCPREDST);
262 }
263
264 static void fimc_hw_set_scaler(struct fimc_ctx *ctx)
265 {
266 struct fimc_dev *dev = ctx->fimc_dev;
267 struct fimc_scaler *sc = &ctx->scaler;
268 struct fimc_frame *src_frame = &ctx->s_frame;
269 struct fimc_frame *dst_frame = &ctx->d_frame;
270 u32 cfg = 0;
271
272 if (!(ctx->flags & FIMC_COLOR_RANGE_NARROW))
273 cfg |= (S5P_CISCCTRL_CSCR2Y_WIDE | S5P_CISCCTRL_CSCY2R_WIDE);
274
275 if (!sc->enabled)
276 cfg |= S5P_CISCCTRL_SCALERBYPASS;
277
278 if (sc->scaleup_h)
279 cfg |= S5P_CISCCTRL_SCALEUP_H;
280
281 if (sc->scaleup_v)
282 cfg |= S5P_CISCCTRL_SCALEUP_V;
283
284 if (sc->copy_mode)
285 cfg |= S5P_CISCCTRL_ONE2ONE;
286
287
288 if (ctx->in_path == FIMC_DMA) {
289 if (src_frame->fmt->color == S5P_FIMC_RGB565)
290 cfg |= S5P_CISCCTRL_INRGB_FMT_RGB565;
291 else if (src_frame->fmt->color == S5P_FIMC_RGB666)
292 cfg |= S5P_CISCCTRL_INRGB_FMT_RGB666;
293 else if (src_frame->fmt->color == S5P_FIMC_RGB888)
294 cfg |= S5P_CISCCTRL_INRGB_FMT_RGB888;
295 }
296
297 if (ctx->out_path == FIMC_DMA) {
298 if (dst_frame->fmt->color == S5P_FIMC_RGB565)
299 cfg |= S5P_CISCCTRL_OUTRGB_FMT_RGB565;
300 else if (dst_frame->fmt->color == S5P_FIMC_RGB666)
301 cfg |= S5P_CISCCTRL_OUTRGB_FMT_RGB666;
302 else if (dst_frame->fmt->color == S5P_FIMC_RGB888)
303 cfg |= S5P_CISCCTRL_OUTRGB_FMT_RGB888;
304 } else {
305 cfg |= S5P_CISCCTRL_OUTRGB_FMT_RGB888;
306
307 if (ctx->flags & FIMC_SCAN_MODE_INTERLACED)
308 cfg |= S5P_CISCCTRL_INTERLACE;
309 }
310
311 writel(cfg, dev->regs + S5P_CISCCTRL);
312 }
313
314 void fimc_hw_set_mainscaler(struct fimc_ctx *ctx)
315 {
316 struct fimc_dev *dev = ctx->fimc_dev;
317 struct samsung_fimc_variant *variant = dev->variant;
318 struct fimc_scaler *sc = &ctx->scaler;
319 u32 cfg;
320
321 dbg("main_hratio= 0x%X main_vratio= 0x%X",
322 sc->main_hratio, sc->main_vratio);
323
324 fimc_hw_set_scaler(ctx);
325
326 cfg = readl(dev->regs + S5P_CISCCTRL);
327
328 if (variant->has_mainscaler_ext) {
329 cfg &= ~(S5P_CISCCTRL_MHRATIO_MASK | S5P_CISCCTRL_MVRATIO_MASK);
330 cfg |= S5P_CISCCTRL_MHRATIO_EXT(sc->main_hratio);
331 cfg |= S5P_CISCCTRL_MVRATIO_EXT(sc->main_vratio);
332 writel(cfg, dev->regs + S5P_CISCCTRL);
333
334 cfg = readl(dev->regs + S5P_CIEXTEN);
335
336 cfg &= ~(S5P_CIEXTEN_MVRATIO_EXT_MASK |
337 S5P_CIEXTEN_MHRATIO_EXT_MASK);
338 cfg |= S5P_CIEXTEN_MHRATIO_EXT(sc->main_hratio);
339 cfg |= S5P_CIEXTEN_MVRATIO_EXT(sc->main_vratio);
340 writel(cfg, dev->regs + S5P_CIEXTEN);
341 } else {
342 cfg &= ~(S5P_CISCCTRL_MHRATIO_MASK | S5P_CISCCTRL_MVRATIO_MASK);
343 cfg |= S5P_CISCCTRL_MHRATIO(sc->main_hratio);
344 cfg |= S5P_CISCCTRL_MVRATIO(sc->main_vratio);
345 writel(cfg, dev->regs + S5P_CISCCTRL);
346 }
347 }
348
349 void fimc_hw_en_capture(struct fimc_ctx *ctx)
350 {
351 struct fimc_dev *dev = ctx->fimc_dev;
352
353 u32 cfg = readl(dev->regs + S5P_CIIMGCPT);
354
355 if (ctx->out_path == FIMC_DMA) {
356 /* one shot mode */
357 cfg |= S5P_CIIMGCPT_CPT_FREN_ENABLE | S5P_CIIMGCPT_IMGCPTEN;
358 } else {
359 /* Continuous frame capture mode (freerun). */
360 cfg &= ~(S5P_CIIMGCPT_CPT_FREN_ENABLE |
361 S5P_CIIMGCPT_CPT_FRMOD_CNT);
362 cfg |= S5P_CIIMGCPT_IMGCPTEN;
363 }
364
365 if (ctx->scaler.enabled)
366 cfg |= S5P_CIIMGCPT_IMGCPTEN_SC;
367
368 writel(cfg | S5P_CIIMGCPT_IMGCPTEN, dev->regs + S5P_CIIMGCPT);
369 }
370
371 void fimc_hw_set_effect(struct fimc_ctx *ctx)
372 {
373 struct fimc_dev *dev = ctx->fimc_dev;
374 struct fimc_effect *effect = &ctx->effect;
375 u32 cfg = (S5P_CIIMGEFF_IE_ENABLE | S5P_CIIMGEFF_IE_SC_AFTER);
376
377 cfg |= effect->type;
378
379 if (effect->type == S5P_FIMC_EFFECT_ARBITRARY) {
380 cfg |= S5P_CIIMGEFF_PAT_CB(effect->pat_cb);
381 cfg |= S5P_CIIMGEFF_PAT_CR(effect->pat_cr);
382 }
383
384 writel(cfg, dev->regs + S5P_CIIMGEFF);
385 }
386
387 static void fimc_hw_set_in_dma_size(struct fimc_ctx *ctx)
388 {
389 struct fimc_dev *dev = ctx->fimc_dev;
390 struct fimc_frame *frame = &ctx->s_frame;
391 u32 cfg_o = 0;
392 u32 cfg_r = 0;
393
394 if (FIMC_LCDFIFO == ctx->out_path)
395 cfg_r |= S5P_CIREAL_ISIZE_AUTOLOAD_EN;
396
397 cfg_o |= S5P_ORIG_SIZE_HOR(frame->f_width);
398 cfg_o |= S5P_ORIG_SIZE_VER(frame->f_height);
399 cfg_r |= S5P_CIREAL_ISIZE_WIDTH(frame->width);
400 cfg_r |= S5P_CIREAL_ISIZE_HEIGHT(frame->height);
401
402 writel(cfg_o, dev->regs + S5P_ORGISIZE);
403 writel(cfg_r, dev->regs + S5P_CIREAL_ISIZE);
404 }
405
406 void fimc_hw_set_in_dma(struct fimc_ctx *ctx)
407 {
408 struct fimc_dev *dev = ctx->fimc_dev;
409 struct fimc_frame *frame = &ctx->s_frame;
410 struct fimc_dma_offset *offset = &frame->dma_offset;
411 u32 cfg;
412
413 /* Set the pixel offsets. */
414 cfg = S5P_CIO_OFFS_HOR(offset->y_h);
415 cfg |= S5P_CIO_OFFS_VER(offset->y_v);
416 writel(cfg, dev->regs + S5P_CIIYOFF);
417
418 cfg = S5P_CIO_OFFS_HOR(offset->cb_h);
419 cfg |= S5P_CIO_OFFS_VER(offset->cb_v);
420 writel(cfg, dev->regs + S5P_CIICBOFF);
421
422 cfg = S5P_CIO_OFFS_HOR(offset->cr_h);
423 cfg |= S5P_CIO_OFFS_VER(offset->cr_v);
424 writel(cfg, dev->regs + S5P_CIICROFF);
425
426 /* Input original and real size. */
427 fimc_hw_set_in_dma_size(ctx);
428
429 /* Use DMA autoload only in FIFO mode. */
430 fimc_hw_en_autoload(dev, ctx->out_path == FIMC_LCDFIFO);
431
432 /* Set the input DMA to process single frame only. */
433 cfg = readl(dev->regs + S5P_MSCTRL);
434 cfg &= ~(S5P_MSCTRL_INFORMAT_MASK
435 | S5P_MSCTRL_IN_BURST_COUNT_MASK
436 | S5P_MSCTRL_INPUT_MASK
437 | S5P_MSCTRL_C_INT_IN_MASK
438 | S5P_MSCTRL_2P_IN_ORDER_MASK);
439
440 cfg |= (S5P_MSCTRL_IN_BURST_COUNT(4)
441 | S5P_MSCTRL_INPUT_MEMORY
442 | S5P_MSCTRL_FIFO_CTRL_FULL);
443
444 switch (frame->fmt->color) {
445 case S5P_FIMC_RGB565...S5P_FIMC_RGB888:
446 cfg |= S5P_MSCTRL_INFORMAT_RGB;
447 break;
448 case S5P_FIMC_YCBCR420:
449 cfg |= S5P_MSCTRL_INFORMAT_YCBCR420;
450
451 if (frame->fmt->colplanes == 2)
452 cfg |= ctx->in_order_2p | S5P_MSCTRL_C_INT_IN_2PLANE;
453 else
454 cfg |= S5P_MSCTRL_C_INT_IN_3PLANE;
455
456 break;
457 case S5P_FIMC_YCBYCR422...S5P_FIMC_CRYCBY422:
458 if (frame->fmt->colplanes == 1) {
459 cfg |= ctx->in_order_1p
460 | S5P_MSCTRL_INFORMAT_YCBCR422_1P;
461 } else {
462 cfg |= S5P_MSCTRL_INFORMAT_YCBCR422;
463
464 if (frame->fmt->colplanes == 2)
465 cfg |= ctx->in_order_2p
466 | S5P_MSCTRL_C_INT_IN_2PLANE;
467 else
468 cfg |= S5P_MSCTRL_C_INT_IN_3PLANE;
469 }
470 break;
471 default:
472 break;
473 }
474
475 writel(cfg, dev->regs + S5P_MSCTRL);
476
477 /* Input/output DMA linear/tiled mode. */
478 cfg = readl(dev->regs + S5P_CIDMAPARAM);
479 cfg &= ~S5P_CIDMAPARAM_TILE_MASK;
480
481 if (tiled_fmt(ctx->s_frame.fmt))
482 cfg |= S5P_CIDMAPARAM_R_64X32;
483
484 if (tiled_fmt(ctx->d_frame.fmt))
485 cfg |= S5P_CIDMAPARAM_W_64X32;
486
487 writel(cfg, dev->regs + S5P_CIDMAPARAM);
488 }
489
490
491 void fimc_hw_set_input_path(struct fimc_ctx *ctx)
492 {
493 struct fimc_dev *dev = ctx->fimc_dev;
494
495 u32 cfg = readl(dev->regs + S5P_MSCTRL);
496 cfg &= ~S5P_MSCTRL_INPUT_MASK;
497
498 if (ctx->in_path == FIMC_DMA)
499 cfg |= S5P_MSCTRL_INPUT_MEMORY;
500 else
501 cfg |= S5P_MSCTRL_INPUT_EXTCAM;
502
503 writel(cfg, dev->regs + S5P_MSCTRL);
504 }
505
506 void fimc_hw_set_output_path(struct fimc_ctx *ctx)
507 {
508 struct fimc_dev *dev = ctx->fimc_dev;
509
510 u32 cfg = readl(dev->regs + S5P_CISCCTRL);
511 cfg &= ~S5P_CISCCTRL_LCDPATHEN_FIFO;
512 if (ctx->out_path == FIMC_LCDFIFO)
513 cfg |= S5P_CISCCTRL_LCDPATHEN_FIFO;
514 writel(cfg, dev->regs + S5P_CISCCTRL);
515 }
516
517 void fimc_hw_set_input_addr(struct fimc_dev *dev, struct fimc_addr *paddr)
518 {
519 u32 cfg = readl(dev->regs + S5P_CIREAL_ISIZE);
520 cfg |= S5P_CIREAL_ISIZE_ADDR_CH_DIS;
521 writel(cfg, dev->regs + S5P_CIREAL_ISIZE);
522
523 writel(paddr->y, dev->regs + S5P_CIIYSA(0));
524 writel(paddr->cb, dev->regs + S5P_CIICBSA(0));
525 writel(paddr->cr, dev->regs + S5P_CIICRSA(0));
526
527 cfg &= ~S5P_CIREAL_ISIZE_ADDR_CH_DIS;
528 writel(cfg, dev->regs + S5P_CIREAL_ISIZE);
529 }
530
531 void fimc_hw_set_output_addr(struct fimc_dev *dev,
532 struct fimc_addr *paddr, int index)
533 {
534 int i = (index == -1) ? 0 : index;
535 do {
536 writel(paddr->y, dev->regs + S5P_CIOYSA(i));
537 writel(paddr->cb, dev->regs + S5P_CIOCBSA(i));
538 writel(paddr->cr, dev->regs + S5P_CIOCRSA(i));
539 dbg("dst_buf[%d]: 0x%X, cb: 0x%X, cr: 0x%X",
540 i, paddr->y, paddr->cb, paddr->cr);
541 } while (index == -1 && ++i < FIMC_MAX_OUT_BUFS);
542 }
543
544 int fimc_hw_set_camera_polarity(struct fimc_dev *fimc,
545 struct s5p_fimc_isp_info *cam)
546 {
547 u32 cfg = readl(fimc->regs + S5P_CIGCTRL);
548
549 cfg &= ~(S5P_CIGCTRL_INVPOLPCLK | S5P_CIGCTRL_INVPOLVSYNC |
550 S5P_CIGCTRL_INVPOLHREF | S5P_CIGCTRL_INVPOLHSYNC);
551
552 if (cam->flags & FIMC_CLK_INV_PCLK)
553 cfg |= S5P_CIGCTRL_INVPOLPCLK;
554
555 if (cam->flags & FIMC_CLK_INV_VSYNC)
556 cfg |= S5P_CIGCTRL_INVPOLVSYNC;
557
558 if (cam->flags & FIMC_CLK_INV_HREF)
559 cfg |= S5P_CIGCTRL_INVPOLHREF;
560
561 if (cam->flags & FIMC_CLK_INV_HSYNC)
562 cfg |= S5P_CIGCTRL_INVPOLHSYNC;
563
564 writel(cfg, fimc->regs + S5P_CIGCTRL);
565
566 return 0;
567 }
568
569 int fimc_hw_set_camera_source(struct fimc_dev *fimc,
570 struct s5p_fimc_isp_info *cam)
571 {
572 struct fimc_frame *f = &fimc->vid_cap.ctx->s_frame;
573 u32 cfg = 0;
574 u32 bus_width;
575 int i;
576
577 static const struct {
578 u32 pixelcode;
579 u32 cisrcfmt;
580 u16 bus_width;
581 } pix_desc[] = {
582 { V4L2_MBUS_FMT_YUYV8_2X8, S5P_CISRCFMT_ORDER422_YCBYCR, 8 },
583 { V4L2_MBUS_FMT_YVYU8_2X8, S5P_CISRCFMT_ORDER422_YCRYCB, 8 },
584 { V4L2_MBUS_FMT_VYUY8_2X8, S5P_CISRCFMT_ORDER422_CRYCBY, 8 },
585 { V4L2_MBUS_FMT_UYVY8_2X8, S5P_CISRCFMT_ORDER422_CBYCRY, 8 },
586 /* TODO: Add pixel codes for 16-bit bus width */
587 };
588
589 if (cam->bus_type == FIMC_ITU_601 || cam->bus_type == FIMC_ITU_656) {
590 for (i = 0; i < ARRAY_SIZE(pix_desc); i++) {
591 if (fimc->vid_cap.fmt.code == pix_desc[i].pixelcode) {
592 cfg = pix_desc[i].cisrcfmt;
593 bus_width = pix_desc[i].bus_width;
594 break;
595 }
596 }
597
598 if (i == ARRAY_SIZE(pix_desc)) {
599 v4l2_err(&fimc->vid_cap.v4l2_dev,
600 "Camera color format not supported: %d\n",
601 fimc->vid_cap.fmt.code);
602 return -EINVAL;
603 }
604
605 if (cam->bus_type == FIMC_ITU_601) {
606 if (bus_width == 8)
607 cfg |= S5P_CISRCFMT_ITU601_8BIT;
608 else if (bus_width == 16)
609 cfg |= S5P_CISRCFMT_ITU601_16BIT;
610 } /* else defaults to ITU-R BT.656 8-bit */
611 }
612
613 cfg |= S5P_CISRCFMT_HSIZE(f->o_width) | S5P_CISRCFMT_VSIZE(f->o_height);
614 writel(cfg, fimc->regs + S5P_CISRCFMT);
615 return 0;
616 }
617
618
619 int fimc_hw_set_camera_offset(struct fimc_dev *fimc, struct fimc_frame *f)
620 {
621 u32 hoff2, voff2;
622
623 u32 cfg = readl(fimc->regs + S5P_CIWDOFST);
624
625 cfg &= ~(S5P_CIWDOFST_HOROFF_MASK | S5P_CIWDOFST_VEROFF_MASK);
626 cfg |= S5P_CIWDOFST_OFF_EN |
627 S5P_CIWDOFST_HOROFF(f->offs_h) |
628 S5P_CIWDOFST_VEROFF(f->offs_v);
629
630 writel(cfg, fimc->regs + S5P_CIWDOFST);
631
632 /* See CIWDOFSTn register description in the datasheet for details. */
633 hoff2 = f->o_width - f->width - f->offs_h;
634 voff2 = f->o_height - f->height - f->offs_v;
635 cfg = S5P_CIWDOFST2_HOROFF(hoff2) | S5P_CIWDOFST2_VEROFF(voff2);
636
637 writel(cfg, fimc->regs + S5P_CIWDOFST2);
638 return 0;
639 }
640
641 int fimc_hw_set_camera_type(struct fimc_dev *fimc,
642 struct s5p_fimc_isp_info *cam)
643 {
644 u32 cfg, tmp;
645 struct fimc_vid_cap *vid_cap = &fimc->vid_cap;
646
647 cfg = readl(fimc->regs + S5P_CIGCTRL);
648
649 /* Select ITU B interface, disable Writeback path and test pattern. */
650 cfg &= ~(S5P_CIGCTRL_TESTPAT_MASK | S5P_CIGCTRL_SELCAM_ITU_A |
651 S5P_CIGCTRL_SELCAM_MIPI | S5P_CIGCTRL_CAMIF_SELWB |
652 S5P_CIGCTRL_SELCAM_MIPI_A);
653
654 if (cam->bus_type == FIMC_MIPI_CSI2) {
655 cfg |= S5P_CIGCTRL_SELCAM_MIPI;
656
657 if (cam->mux_id == 0)
658 cfg |= S5P_CIGCTRL_SELCAM_MIPI_A;
659
660 /* TODO: add remaining supported formats. */
661 if (vid_cap->fmt.code == V4L2_MBUS_FMT_VYUY8_2X8) {
662 tmp = S5P_CSIIMGFMT_YCBCR422_8BIT;
663 } else {
664 err("camera image format not supported: %d",
665 vid_cap->fmt.code);
666 return -EINVAL;
667 }
668 tmp |= (cam->csi_data_align == 32) << 8;
669
670 writel(tmp, fimc->regs + S5P_CSIIMGFMT);
671
672 } else if (cam->bus_type == FIMC_ITU_601 ||
673 cam->bus_type == FIMC_ITU_656) {
674 if (cam->mux_id == 0) /* ITU-A, ITU-B: 0, 1 */
675 cfg |= S5P_CIGCTRL_SELCAM_ITU_A;
676 } else if (cam->bus_type == FIMC_LCD_WB) {
677 cfg |= S5P_CIGCTRL_CAMIF_SELWB;
678 } else {
679 err("invalid camera bus type selected\n");
680 return -EINVAL;
681 }
682 writel(cfg, fimc->regs + S5P_CIGCTRL);
683
684 return 0;
685 }
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