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17#include <linux/module.h>
18#include <linux/uaccess.h>
19#include <linux/delay.h>
20#include <linux/device.h>
21#include <linux/dma-mapping.h>
22#include <linux/mm.h>
23#include <linux/sched.h>
24#include <linux/slab.h>
25#include <media/v4l2-event.h>
26
27#include "isp.h"
28#include "ispreg.h"
29#include "ispccdc.h"
30
31#define CCDC_MIN_WIDTH 32
32#define CCDC_MIN_HEIGHT 32
33
34static struct v4l2_mbus_framefmt *
35__ccdc_get_format(struct isp_ccdc_device *ccdc, struct v4l2_subdev_pad_config *cfg,
36 unsigned int pad, enum v4l2_subdev_format_whence which);
37
38static const unsigned int ccdc_fmts[] = {
39 MEDIA_BUS_FMT_Y8_1X8,
40 MEDIA_BUS_FMT_Y10_1X10,
41 MEDIA_BUS_FMT_Y12_1X12,
42 MEDIA_BUS_FMT_SGRBG8_1X8,
43 MEDIA_BUS_FMT_SRGGB8_1X8,
44 MEDIA_BUS_FMT_SBGGR8_1X8,
45 MEDIA_BUS_FMT_SGBRG8_1X8,
46 MEDIA_BUS_FMT_SGRBG10_1X10,
47 MEDIA_BUS_FMT_SRGGB10_1X10,
48 MEDIA_BUS_FMT_SBGGR10_1X10,
49 MEDIA_BUS_FMT_SGBRG10_1X10,
50 MEDIA_BUS_FMT_SGRBG12_1X12,
51 MEDIA_BUS_FMT_SRGGB12_1X12,
52 MEDIA_BUS_FMT_SBGGR12_1X12,
53 MEDIA_BUS_FMT_SGBRG12_1X12,
54 MEDIA_BUS_FMT_YUYV8_2X8,
55 MEDIA_BUS_FMT_UYVY8_2X8,
56};
57
58
59
60
61
62
63
64#define CCDC_PRINT_REGISTER(isp, name)\
65 dev_dbg(isp->dev, "###CCDC " #name "=0x%08x\n", \
66 isp_reg_readl(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_##name))
67
68static void ccdc_print_status(struct isp_ccdc_device *ccdc)
69{
70 struct isp_device *isp = to_isp_device(ccdc);
71
72 dev_dbg(isp->dev, "-------------CCDC Register dump-------------\n");
73
74 CCDC_PRINT_REGISTER(isp, PCR);
75 CCDC_PRINT_REGISTER(isp, SYN_MODE);
76 CCDC_PRINT_REGISTER(isp, HD_VD_WID);
77 CCDC_PRINT_REGISTER(isp, PIX_LINES);
78 CCDC_PRINT_REGISTER(isp, HORZ_INFO);
79 CCDC_PRINT_REGISTER(isp, VERT_START);
80 CCDC_PRINT_REGISTER(isp, VERT_LINES);
81 CCDC_PRINT_REGISTER(isp, CULLING);
82 CCDC_PRINT_REGISTER(isp, HSIZE_OFF);
83 CCDC_PRINT_REGISTER(isp, SDOFST);
84 CCDC_PRINT_REGISTER(isp, SDR_ADDR);
85 CCDC_PRINT_REGISTER(isp, CLAMP);
86 CCDC_PRINT_REGISTER(isp, DCSUB);
87 CCDC_PRINT_REGISTER(isp, COLPTN);
88 CCDC_PRINT_REGISTER(isp, BLKCMP);
89 CCDC_PRINT_REGISTER(isp, FPC);
90 CCDC_PRINT_REGISTER(isp, FPC_ADDR);
91 CCDC_PRINT_REGISTER(isp, VDINT);
92 CCDC_PRINT_REGISTER(isp, ALAW);
93 CCDC_PRINT_REGISTER(isp, REC656IF);
94 CCDC_PRINT_REGISTER(isp, CFG);
95 CCDC_PRINT_REGISTER(isp, FMTCFG);
96 CCDC_PRINT_REGISTER(isp, FMT_HORZ);
97 CCDC_PRINT_REGISTER(isp, FMT_VERT);
98 CCDC_PRINT_REGISTER(isp, PRGEVEN0);
99 CCDC_PRINT_REGISTER(isp, PRGEVEN1);
100 CCDC_PRINT_REGISTER(isp, PRGODD0);
101 CCDC_PRINT_REGISTER(isp, PRGODD1);
102 CCDC_PRINT_REGISTER(isp, VP_OUT);
103 CCDC_PRINT_REGISTER(isp, LSC_CONFIG);
104 CCDC_PRINT_REGISTER(isp, LSC_INITIAL);
105 CCDC_PRINT_REGISTER(isp, LSC_TABLE_BASE);
106 CCDC_PRINT_REGISTER(isp, LSC_TABLE_OFFSET);
107
108 dev_dbg(isp->dev, "--------------------------------------------\n");
109}
110
111
112
113
114
115int omap3isp_ccdc_busy(struct isp_ccdc_device *ccdc)
116{
117 struct isp_device *isp = to_isp_device(ccdc);
118
119 return isp_reg_readl(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_PCR) &
120 ISPCCDC_PCR_BUSY;
121}
122
123
124
125
126
127
128
129
130
131
132
133
134static int ccdc_lsc_validate_config(struct isp_ccdc_device *ccdc,
135 struct omap3isp_ccdc_lsc_config *lsc_cfg)
136{
137 struct isp_device *isp = to_isp_device(ccdc);
138 struct v4l2_mbus_framefmt *format;
139 unsigned int paxel_width, paxel_height;
140 unsigned int paxel_shift_x, paxel_shift_y;
141 unsigned int min_width, min_height, min_size;
142 unsigned int input_width, input_height;
143
144 paxel_shift_x = lsc_cfg->gain_mode_m;
145 paxel_shift_y = lsc_cfg->gain_mode_n;
146
147 if ((paxel_shift_x < 2) || (paxel_shift_x > 6) ||
148 (paxel_shift_y < 2) || (paxel_shift_y > 6)) {
149 dev_dbg(isp->dev, "CCDC: LSC: Invalid paxel size\n");
150 return -EINVAL;
151 }
152
153 if (lsc_cfg->offset & 3) {
154 dev_dbg(isp->dev,
155 "CCDC: LSC: Offset must be a multiple of 4\n");
156 return -EINVAL;
157 }
158
159 if ((lsc_cfg->initial_x & 1) || (lsc_cfg->initial_y & 1)) {
160 dev_dbg(isp->dev, "CCDC: LSC: initial_x and y must be even\n");
161 return -EINVAL;
162 }
163
164 format = __ccdc_get_format(ccdc, NULL, CCDC_PAD_SINK,
165 V4L2_SUBDEV_FORMAT_ACTIVE);
166 input_width = format->width;
167 input_height = format->height;
168
169
170 paxel_width = 1 << paxel_shift_x;
171 min_width = ((input_width + lsc_cfg->initial_x + paxel_width - 1)
172 >> paxel_shift_x) + 1;
173
174 paxel_height = 1 << paxel_shift_y;
175 min_height = ((input_height + lsc_cfg->initial_y + paxel_height - 1)
176 >> paxel_shift_y) + 1;
177
178 min_size = 4 * min_width * min_height;
179 if (min_size > lsc_cfg->size) {
180 dev_dbg(isp->dev, "CCDC: LSC: too small table\n");
181 return -EINVAL;
182 }
183 if (lsc_cfg->offset < (min_width * 4)) {
184 dev_dbg(isp->dev, "CCDC: LSC: Offset is too small\n");
185 return -EINVAL;
186 }
187 if ((lsc_cfg->size / lsc_cfg->offset) < min_height) {
188 dev_dbg(isp->dev, "CCDC: LSC: Wrong size/offset combination\n");
189 return -EINVAL;
190 }
191 return 0;
192}
193
194
195
196
197
198static void ccdc_lsc_program_table(struct isp_ccdc_device *ccdc,
199 dma_addr_t addr)
200{
201 isp_reg_writel(to_isp_device(ccdc), addr,
202 OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_TABLE_BASE);
203}
204
205
206
207
208
209static void ccdc_lsc_setup_regs(struct isp_ccdc_device *ccdc,
210 struct omap3isp_ccdc_lsc_config *cfg)
211{
212 struct isp_device *isp = to_isp_device(ccdc);
213 int reg;
214
215 isp_reg_writel(isp, cfg->offset, OMAP3_ISP_IOMEM_CCDC,
216 ISPCCDC_LSC_TABLE_OFFSET);
217
218 reg = 0;
219 reg |= cfg->gain_mode_n << ISPCCDC_LSC_GAIN_MODE_N_SHIFT;
220 reg |= cfg->gain_mode_m << ISPCCDC_LSC_GAIN_MODE_M_SHIFT;
221 reg |= cfg->gain_format << ISPCCDC_LSC_GAIN_FORMAT_SHIFT;
222 isp_reg_writel(isp, reg, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_CONFIG);
223
224 reg = 0;
225 reg &= ~ISPCCDC_LSC_INITIAL_X_MASK;
226 reg |= cfg->initial_x << ISPCCDC_LSC_INITIAL_X_SHIFT;
227 reg &= ~ISPCCDC_LSC_INITIAL_Y_MASK;
228 reg |= cfg->initial_y << ISPCCDC_LSC_INITIAL_Y_SHIFT;
229 isp_reg_writel(isp, reg, OMAP3_ISP_IOMEM_CCDC,
230 ISPCCDC_LSC_INITIAL);
231}
232
233static int ccdc_lsc_wait_prefetch(struct isp_ccdc_device *ccdc)
234{
235 struct isp_device *isp = to_isp_device(ccdc);
236 unsigned int wait;
237
238 isp_reg_writel(isp, IRQ0STATUS_CCDC_LSC_PREF_COMP_IRQ,
239 OMAP3_ISP_IOMEM_MAIN, ISP_IRQ0STATUS);
240
241
242 for (wait = 0; wait < 1000; wait++) {
243 if (isp_reg_readl(isp, OMAP3_ISP_IOMEM_MAIN, ISP_IRQ0STATUS) &
244 IRQ0STATUS_CCDC_LSC_PREF_COMP_IRQ) {
245 isp_reg_writel(isp, IRQ0STATUS_CCDC_LSC_PREF_COMP_IRQ,
246 OMAP3_ISP_IOMEM_MAIN, ISP_IRQ0STATUS);
247 return 0;
248 }
249
250 rmb();
251 udelay(1);
252 }
253
254 return -ETIMEDOUT;
255}
256
257
258
259
260
261
262static int __ccdc_lsc_enable(struct isp_ccdc_device *ccdc, int enable)
263{
264 struct isp_device *isp = to_isp_device(ccdc);
265 const struct v4l2_mbus_framefmt *format =
266 __ccdc_get_format(ccdc, NULL, CCDC_PAD_SINK,
267 V4L2_SUBDEV_FORMAT_ACTIVE);
268
269 if ((format->code != MEDIA_BUS_FMT_SGRBG10_1X10) &&
270 (format->code != MEDIA_BUS_FMT_SRGGB10_1X10) &&
271 (format->code != MEDIA_BUS_FMT_SBGGR10_1X10) &&
272 (format->code != MEDIA_BUS_FMT_SGBRG10_1X10))
273 return -EINVAL;
274
275 if (enable)
276 omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_CCDC_LSC_READ);
277
278 isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_CONFIG,
279 ISPCCDC_LSC_ENABLE, enable ? ISPCCDC_LSC_ENABLE : 0);
280
281 if (enable) {
282 if (ccdc_lsc_wait_prefetch(ccdc) < 0) {
283 isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC,
284 ISPCCDC_LSC_CONFIG, ISPCCDC_LSC_ENABLE);
285 ccdc->lsc.state = LSC_STATE_STOPPED;
286 dev_warn(to_device(ccdc), "LSC prefetch timeout\n");
287 return -ETIMEDOUT;
288 }
289 ccdc->lsc.state = LSC_STATE_RUNNING;
290 } else {
291 ccdc->lsc.state = LSC_STATE_STOPPING;
292 }
293
294 return 0;
295}
296
297static int ccdc_lsc_busy(struct isp_ccdc_device *ccdc)
298{
299 struct isp_device *isp = to_isp_device(ccdc);
300
301 return isp_reg_readl(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_CONFIG) &
302 ISPCCDC_LSC_BUSY;
303}
304
305
306
307
308
309
310
311static int __ccdc_lsc_configure(struct isp_ccdc_device *ccdc,
312 struct ispccdc_lsc_config_req *req)
313{
314 if (!req->enable)
315 return -EINVAL;
316
317 if (ccdc_lsc_validate_config(ccdc, &req->config) < 0) {
318 dev_dbg(to_device(ccdc), "Discard LSC configuration\n");
319 return -EINVAL;
320 }
321
322 if (ccdc_lsc_busy(ccdc))
323 return -EBUSY;
324
325 ccdc_lsc_setup_regs(ccdc, &req->config);
326 ccdc_lsc_program_table(ccdc, req->table.dma);
327 return 0;
328}
329
330
331
332
333
334
335
336static void ccdc_lsc_error_handler(struct isp_ccdc_device *ccdc)
337{
338 struct isp_device *isp = to_isp_device(ccdc);
339
340
341
342
343
344
345
346
347
348 isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_CONFIG,
349 ISPCCDC_LSC_ENABLE);
350 ccdc->lsc.state = LSC_STATE_STOPPED;
351}
352
353static void ccdc_lsc_free_request(struct isp_ccdc_device *ccdc,
354 struct ispccdc_lsc_config_req *req)
355{
356 struct isp_device *isp = to_isp_device(ccdc);
357
358 if (req == NULL)
359 return;
360
361 if (req->table.addr) {
362 sg_free_table(&req->table.sgt);
363 dma_free_coherent(isp->dev, req->config.size, req->table.addr,
364 req->table.dma);
365 }
366
367 kfree(req);
368}
369
370static void ccdc_lsc_free_queue(struct isp_ccdc_device *ccdc,
371 struct list_head *queue)
372{
373 struct ispccdc_lsc_config_req *req, *n;
374 unsigned long flags;
375
376 spin_lock_irqsave(&ccdc->lsc.req_lock, flags);
377 list_for_each_entry_safe(req, n, queue, list) {
378 list_del(&req->list);
379 spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags);
380 ccdc_lsc_free_request(ccdc, req);
381 spin_lock_irqsave(&ccdc->lsc.req_lock, flags);
382 }
383 spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags);
384}
385
386static void ccdc_lsc_free_table_work(struct work_struct *work)
387{
388 struct isp_ccdc_device *ccdc;
389 struct ispccdc_lsc *lsc;
390
391 lsc = container_of(work, struct ispccdc_lsc, table_work);
392 ccdc = container_of(lsc, struct isp_ccdc_device, lsc);
393
394 ccdc_lsc_free_queue(ccdc, &lsc->free_queue);
395}
396
397
398
399
400
401
402
403
404static int ccdc_lsc_config(struct isp_ccdc_device *ccdc,
405 struct omap3isp_ccdc_update_config *config)
406{
407 struct isp_device *isp = to_isp_device(ccdc);
408 struct ispccdc_lsc_config_req *req;
409 unsigned long flags;
410 u16 update;
411 int ret;
412
413 update = config->update &
414 (OMAP3ISP_CCDC_CONFIG_LSC | OMAP3ISP_CCDC_TBL_LSC);
415 if (!update)
416 return 0;
417
418 if (update != (OMAP3ISP_CCDC_CONFIG_LSC | OMAP3ISP_CCDC_TBL_LSC)) {
419 dev_dbg(to_device(ccdc),
420 "%s: Both LSC configuration and table need to be supplied\n",
421 __func__);
422 return -EINVAL;
423 }
424
425 req = kzalloc(sizeof(*req), GFP_KERNEL);
426 if (req == NULL)
427 return -ENOMEM;
428
429 if (config->flag & OMAP3ISP_CCDC_CONFIG_LSC) {
430 if (copy_from_user(&req->config, config->lsc_cfg,
431 sizeof(req->config))) {
432 ret = -EFAULT;
433 goto done;
434 }
435
436 req->enable = 1;
437
438 req->table.addr = dma_alloc_coherent(isp->dev, req->config.size,
439 &req->table.dma,
440 GFP_KERNEL);
441 if (req->table.addr == NULL) {
442 ret = -ENOMEM;
443 goto done;
444 }
445
446 ret = dma_get_sgtable(isp->dev, &req->table.sgt,
447 req->table.addr, req->table.dma,
448 req->config.size);
449 if (ret < 0)
450 goto done;
451
452 dma_sync_sg_for_cpu(isp->dev, req->table.sgt.sgl,
453 req->table.sgt.nents, DMA_TO_DEVICE);
454
455 if (copy_from_user(req->table.addr, config->lsc,
456 req->config.size)) {
457 ret = -EFAULT;
458 goto done;
459 }
460
461 dma_sync_sg_for_device(isp->dev, req->table.sgt.sgl,
462 req->table.sgt.nents, DMA_TO_DEVICE);
463 }
464
465 spin_lock_irqsave(&ccdc->lsc.req_lock, flags);
466 if (ccdc->lsc.request) {
467 list_add_tail(&ccdc->lsc.request->list, &ccdc->lsc.free_queue);
468 schedule_work(&ccdc->lsc.table_work);
469 }
470 ccdc->lsc.request = req;
471 spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags);
472
473 ret = 0;
474
475done:
476 if (ret < 0)
477 ccdc_lsc_free_request(ccdc, req);
478
479 return ret;
480}
481
482static inline int ccdc_lsc_is_configured(struct isp_ccdc_device *ccdc)
483{
484 unsigned long flags;
485 int ret;
486
487 spin_lock_irqsave(&ccdc->lsc.req_lock, flags);
488 ret = ccdc->lsc.active != NULL;
489 spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags);
490
491 return ret;
492}
493
494static int ccdc_lsc_enable(struct isp_ccdc_device *ccdc)
495{
496 struct ispccdc_lsc *lsc = &ccdc->lsc;
497
498 if (lsc->state != LSC_STATE_STOPPED)
499 return -EINVAL;
500
501 if (lsc->active) {
502 list_add_tail(&lsc->active->list, &lsc->free_queue);
503 lsc->active = NULL;
504 }
505
506 if (__ccdc_lsc_configure(ccdc, lsc->request) < 0) {
507 omap3isp_sbl_disable(to_isp_device(ccdc),
508 OMAP3_ISP_SBL_CCDC_LSC_READ);
509 list_add_tail(&lsc->request->list, &lsc->free_queue);
510 lsc->request = NULL;
511 goto done;
512 }
513
514 lsc->active = lsc->request;
515 lsc->request = NULL;
516 __ccdc_lsc_enable(ccdc, 1);
517
518done:
519 if (!list_empty(&lsc->free_queue))
520 schedule_work(&lsc->table_work);
521
522 return 0;
523}
524
525
526
527
528
529
530
531
532
533
534
535
536static void ccdc_configure_clamp(struct isp_ccdc_device *ccdc)
537{
538 struct isp_device *isp = to_isp_device(ccdc);
539 u32 clamp;
540
541 if (ccdc->obclamp) {
542 clamp = ccdc->clamp.obgain << ISPCCDC_CLAMP_OBGAIN_SHIFT;
543 clamp |= ccdc->clamp.oblen << ISPCCDC_CLAMP_OBSLEN_SHIFT;
544 clamp |= ccdc->clamp.oblines << ISPCCDC_CLAMP_OBSLN_SHIFT;
545 clamp |= ccdc->clamp.obstpixel << ISPCCDC_CLAMP_OBST_SHIFT;
546 isp_reg_writel(isp, clamp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CLAMP);
547 } else {
548 isp_reg_writel(isp, ccdc->clamp.dcsubval,
549 OMAP3_ISP_IOMEM_CCDC, ISPCCDC_DCSUB);
550 }
551
552 isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CLAMP,
553 ISPCCDC_CLAMP_CLAMPEN,
554 ccdc->obclamp ? ISPCCDC_CLAMP_CLAMPEN : 0);
555}
556
557
558
559
560
561static void ccdc_configure_fpc(struct isp_ccdc_device *ccdc)
562{
563 struct isp_device *isp = to_isp_device(ccdc);
564
565 isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FPC, ISPCCDC_FPC_FPCEN);
566
567 if (!ccdc->fpc_en)
568 return;
569
570 isp_reg_writel(isp, ccdc->fpc.dma, OMAP3_ISP_IOMEM_CCDC,
571 ISPCCDC_FPC_ADDR);
572
573 isp_reg_writel(isp, (ccdc->fpc.fpnum << ISPCCDC_FPC_FPNUM_SHIFT),
574 OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FPC);
575 isp_reg_writel(isp, (ccdc->fpc.fpnum << ISPCCDC_FPC_FPNUM_SHIFT) |
576 ISPCCDC_FPC_FPCEN, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FPC);
577}
578
579
580
581
582
583static void ccdc_configure_black_comp(struct isp_ccdc_device *ccdc)
584{
585 struct isp_device *isp = to_isp_device(ccdc);
586 u32 blcomp;
587
588 blcomp = ccdc->blcomp.b_mg << ISPCCDC_BLKCMP_B_MG_SHIFT;
589 blcomp |= ccdc->blcomp.gb_g << ISPCCDC_BLKCMP_GB_G_SHIFT;
590 blcomp |= ccdc->blcomp.gr_cy << ISPCCDC_BLKCMP_GR_CY_SHIFT;
591 blcomp |= ccdc->blcomp.r_ye << ISPCCDC_BLKCMP_R_YE_SHIFT;
592
593 isp_reg_writel(isp, blcomp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_BLKCMP);
594}
595
596
597
598
599
600static void ccdc_configure_lpf(struct isp_ccdc_device *ccdc)
601{
602 struct isp_device *isp = to_isp_device(ccdc);
603
604 isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE,
605 ISPCCDC_SYN_MODE_LPF,
606 ccdc->lpf ? ISPCCDC_SYN_MODE_LPF : 0);
607}
608
609
610
611
612
613static void ccdc_configure_alaw(struct isp_ccdc_device *ccdc)
614{
615 struct isp_device *isp = to_isp_device(ccdc);
616 const struct isp_format_info *info;
617 u32 alaw = 0;
618
619 info = omap3isp_video_format_info(ccdc->formats[CCDC_PAD_SINK].code);
620
621 switch (info->width) {
622 case 8:
623 return;
624
625 case 10:
626 alaw = ISPCCDC_ALAW_GWDI_9_0;
627 break;
628 case 11:
629 alaw = ISPCCDC_ALAW_GWDI_10_1;
630 break;
631 case 12:
632 alaw = ISPCCDC_ALAW_GWDI_11_2;
633 break;
634 case 13:
635 alaw = ISPCCDC_ALAW_GWDI_12_3;
636 break;
637 }
638
639 if (ccdc->alaw)
640 alaw |= ISPCCDC_ALAW_CCDTBL;
641
642 isp_reg_writel(isp, alaw, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_ALAW);
643}
644
645
646
647
648
649
650static void ccdc_config_imgattr(struct isp_ccdc_device *ccdc, u32 colptn)
651{
652 struct isp_device *isp = to_isp_device(ccdc);
653
654 isp_reg_writel(isp, colptn, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_COLPTN);
655}
656
657
658
659
660
661
662
663
664
665
666static int ccdc_config(struct isp_ccdc_device *ccdc,
667 struct omap3isp_ccdc_update_config *ccdc_struct)
668{
669 struct isp_device *isp = to_isp_device(ccdc);
670 unsigned long flags;
671
672 spin_lock_irqsave(&ccdc->lock, flags);
673 ccdc->shadow_update = 1;
674 spin_unlock_irqrestore(&ccdc->lock, flags);
675
676 if (OMAP3ISP_CCDC_ALAW & ccdc_struct->update) {
677 ccdc->alaw = !!(OMAP3ISP_CCDC_ALAW & ccdc_struct->flag);
678 ccdc->update |= OMAP3ISP_CCDC_ALAW;
679 }
680
681 if (OMAP3ISP_CCDC_LPF & ccdc_struct->update) {
682 ccdc->lpf = !!(OMAP3ISP_CCDC_LPF & ccdc_struct->flag);
683 ccdc->update |= OMAP3ISP_CCDC_LPF;
684 }
685
686 if (OMAP3ISP_CCDC_BLCLAMP & ccdc_struct->update) {
687 if (copy_from_user(&ccdc->clamp, ccdc_struct->bclamp,
688 sizeof(ccdc->clamp))) {
689 ccdc->shadow_update = 0;
690 return -EFAULT;
691 }
692
693 ccdc->obclamp = !!(OMAP3ISP_CCDC_BLCLAMP & ccdc_struct->flag);
694 ccdc->update |= OMAP3ISP_CCDC_BLCLAMP;
695 }
696
697 if (OMAP3ISP_CCDC_BCOMP & ccdc_struct->update) {
698 if (copy_from_user(&ccdc->blcomp, ccdc_struct->blcomp,
699 sizeof(ccdc->blcomp))) {
700 ccdc->shadow_update = 0;
701 return -EFAULT;
702 }
703
704 ccdc->update |= OMAP3ISP_CCDC_BCOMP;
705 }
706
707 ccdc->shadow_update = 0;
708
709 if (OMAP3ISP_CCDC_FPC & ccdc_struct->update) {
710 struct omap3isp_ccdc_fpc fpc;
711 struct ispccdc_fpc fpc_old = { .addr = NULL, };
712 struct ispccdc_fpc fpc_new;
713 u32 size;
714
715 if (ccdc->state != ISP_PIPELINE_STREAM_STOPPED)
716 return -EBUSY;
717
718 ccdc->fpc_en = !!(OMAP3ISP_CCDC_FPC & ccdc_struct->flag);
719
720 if (ccdc->fpc_en) {
721 if (copy_from_user(&fpc, ccdc_struct->fpc, sizeof(fpc)))
722 return -EFAULT;
723
724 size = fpc.fpnum * 4;
725
726
727
728
729
730 fpc_new.fpnum = fpc.fpnum;
731 fpc_new.addr = dma_alloc_coherent(isp->dev, size,
732 &fpc_new.dma,
733 GFP_KERNEL);
734 if (fpc_new.addr == NULL)
735 return -ENOMEM;
736
737 if (copy_from_user(fpc_new.addr,
738 (__force void __user *)fpc.fpcaddr,
739 size)) {
740 dma_free_coherent(isp->dev, size, fpc_new.addr,
741 fpc_new.dma);
742 return -EFAULT;
743 }
744
745 fpc_old = ccdc->fpc;
746 ccdc->fpc = fpc_new;
747 }
748
749 ccdc_configure_fpc(ccdc);
750
751 if (fpc_old.addr != NULL)
752 dma_free_coherent(isp->dev, fpc_old.fpnum * 4,
753 fpc_old.addr, fpc_old.dma);
754 }
755
756 return ccdc_lsc_config(ccdc, ccdc_struct);
757}
758
759static void ccdc_apply_controls(struct isp_ccdc_device *ccdc)
760{
761 if (ccdc->update & OMAP3ISP_CCDC_ALAW) {
762 ccdc_configure_alaw(ccdc);
763 ccdc->update &= ~OMAP3ISP_CCDC_ALAW;
764 }
765
766 if (ccdc->update & OMAP3ISP_CCDC_LPF) {
767 ccdc_configure_lpf(ccdc);
768 ccdc->update &= ~OMAP3ISP_CCDC_LPF;
769 }
770
771 if (ccdc->update & OMAP3ISP_CCDC_BLCLAMP) {
772 ccdc_configure_clamp(ccdc);
773 ccdc->update &= ~OMAP3ISP_CCDC_BLCLAMP;
774 }
775
776 if (ccdc->update & OMAP3ISP_CCDC_BCOMP) {
777 ccdc_configure_black_comp(ccdc);
778 ccdc->update &= ~OMAP3ISP_CCDC_BCOMP;
779 }
780}
781
782
783
784
785
786void omap3isp_ccdc_restore_context(struct isp_device *isp)
787{
788 struct isp_ccdc_device *ccdc = &isp->isp_ccdc;
789
790 isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG, ISPCCDC_CFG_VDLC);
791
792 ccdc->update = OMAP3ISP_CCDC_ALAW | OMAP3ISP_CCDC_LPF
793 | OMAP3ISP_CCDC_BLCLAMP | OMAP3ISP_CCDC_BCOMP;
794 ccdc_apply_controls(ccdc);
795 ccdc_configure_fpc(ccdc);
796}
797
798
799
800
801
802
803
804
805
806static void ccdc_config_vp(struct isp_ccdc_device *ccdc)
807{
808 struct isp_pipeline *pipe = to_isp_pipeline(&ccdc->subdev.entity);
809 struct isp_device *isp = to_isp_device(ccdc);
810 const struct isp_format_info *info;
811 struct v4l2_mbus_framefmt *format;
812 unsigned long l3_ick = pipe->l3_ick;
813 unsigned int max_div = isp->revision == ISP_REVISION_15_0 ? 64 : 8;
814 unsigned int div = 0;
815 u32 fmtcfg = ISPCCDC_FMTCFG_VPEN;
816
817 format = &ccdc->formats[CCDC_PAD_SOURCE_VP];
818
819 if (!format->code) {
820
821
822
823 isp_reg_writel(isp, 0, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMTCFG);
824 return;
825 }
826
827 isp_reg_writel(isp, (0 << ISPCCDC_FMT_HORZ_FMTSPH_SHIFT) |
828 (format->width << ISPCCDC_FMT_HORZ_FMTLNH_SHIFT),
829 OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMT_HORZ);
830 isp_reg_writel(isp, (0 << ISPCCDC_FMT_VERT_FMTSLV_SHIFT) |
831 ((format->height + 1) << ISPCCDC_FMT_VERT_FMTLNV_SHIFT),
832 OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMT_VERT);
833
834 isp_reg_writel(isp, (format->width << ISPCCDC_VP_OUT_HORZ_NUM_SHIFT) |
835 (format->height << ISPCCDC_VP_OUT_VERT_NUM_SHIFT),
836 OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VP_OUT);
837
838 info = omap3isp_video_format_info(ccdc->formats[CCDC_PAD_SINK].code);
839
840 switch (info->width) {
841 case 8:
842 case 10:
843 fmtcfg |= ISPCCDC_FMTCFG_VPIN_9_0;
844 break;
845 case 11:
846 fmtcfg |= ISPCCDC_FMTCFG_VPIN_10_1;
847 break;
848 case 12:
849 fmtcfg |= ISPCCDC_FMTCFG_VPIN_11_2;
850 break;
851 case 13:
852 fmtcfg |= ISPCCDC_FMTCFG_VPIN_12_3;
853 break;
854 }
855
856 if (pipe->input)
857 div = DIV_ROUND_UP(l3_ick, pipe->max_rate);
858 else if (pipe->external_rate)
859 div = l3_ick / pipe->external_rate;
860
861 div = clamp(div, 2U, max_div);
862 fmtcfg |= (div - 2) << ISPCCDC_FMTCFG_VPIF_FRQ_SHIFT;
863
864 isp_reg_writel(isp, fmtcfg, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMTCFG);
865}
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887static void ccdc_config_outlineoffset(struct isp_ccdc_device *ccdc,
888 unsigned int bpl,
889 enum v4l2_field field)
890{
891 struct isp_device *isp = to_isp_device(ccdc);
892 u32 sdofst = 0;
893
894 isp_reg_writel(isp, bpl & 0xffff, OMAP3_ISP_IOMEM_CCDC,
895 ISPCCDC_HSIZE_OFF);
896
897 switch (field) {
898 case V4L2_FIELD_INTERLACED_TB:
899 case V4L2_FIELD_INTERLACED_BT:
900
901
902
903 sdofst |= (1 << ISPCCDC_SDOFST_LOFST0_SHIFT)
904 | (1 << ISPCCDC_SDOFST_LOFST1_SHIFT)
905 | (1 << ISPCCDC_SDOFST_LOFST2_SHIFT)
906 | (1 << ISPCCDC_SDOFST_LOFST3_SHIFT);
907 break;
908
909 default:
910
911 break;
912 }
913
914 isp_reg_writel(isp, sdofst, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST);
915}
916
917
918
919
920
921
922
923
924static void ccdc_set_outaddr(struct isp_ccdc_device *ccdc, u32 addr)
925{
926 struct isp_device *isp = to_isp_device(ccdc);
927
928 isp_reg_writel(isp, addr, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDR_ADDR);
929}
930
931
932
933
934
935
936
937
938void omap3isp_ccdc_max_rate(struct isp_ccdc_device *ccdc,
939 unsigned int *max_rate)
940{
941 struct isp_pipeline *pipe = to_isp_pipeline(&ccdc->subdev.entity);
942 unsigned int rate;
943
944 if (pipe == NULL)
945 return;
946
947
948
949
950
951 if (ccdc->input == CCDC_INPUT_PARALLEL)
952 rate = pipe->l3_ick / 2 * 9 / 10;
953 else
954 rate = pipe->l3_ick / 2;
955
956 *max_rate = min(*max_rate, rate);
957}
958
959
960
961
962
963
964
965static void ccdc_config_sync_if(struct isp_ccdc_device *ccdc,
966 struct isp_parallel_cfg *parcfg,
967 unsigned int data_size)
968{
969 struct isp_device *isp = to_isp_device(ccdc);
970 const struct v4l2_mbus_framefmt *format;
971 u32 syn_mode = ISPCCDC_SYN_MODE_VDHDEN;
972
973 format = &ccdc->formats[CCDC_PAD_SINK];
974
975 if (format->code == MEDIA_BUS_FMT_YUYV8_2X8 ||
976 format->code == MEDIA_BUS_FMT_UYVY8_2X8) {
977
978
979
980
981
982
983 if (ccdc->bt656)
984 syn_mode |= ISPCCDC_SYN_MODE_INPMOD_YCBCR8;
985 else
986 syn_mode |= ISPCCDC_SYN_MODE_INPMOD_YCBCR16;
987 }
988
989 switch (data_size) {
990 case 8:
991 syn_mode |= ISPCCDC_SYN_MODE_DATSIZ_8;
992 break;
993 case 10:
994 syn_mode |= ISPCCDC_SYN_MODE_DATSIZ_10;
995 break;
996 case 11:
997 syn_mode |= ISPCCDC_SYN_MODE_DATSIZ_11;
998 break;
999 case 12:
1000 syn_mode |= ISPCCDC_SYN_MODE_DATSIZ_12;
1001 break;
1002 }
1003
1004 if (parcfg && parcfg->data_pol)
1005 syn_mode |= ISPCCDC_SYN_MODE_DATAPOL;
1006
1007 if (parcfg && parcfg->hs_pol)
1008 syn_mode |= ISPCCDC_SYN_MODE_HDPOL;
1009
1010
1011
1012
1013 if ((parcfg && parcfg->vs_pol) || ccdc->bt656)
1014 syn_mode |= ISPCCDC_SYN_MODE_VDPOL;
1015
1016 if (parcfg && parcfg->fld_pol)
1017 syn_mode |= ISPCCDC_SYN_MODE_FLDPOL;
1018
1019 isp_reg_writel(isp, syn_mode, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE);
1020
1021
1022
1023
1024 if (format->code == MEDIA_BUS_FMT_UYVY8_2X8)
1025 isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG,
1026 ISPCCDC_CFG_Y8POS);
1027 else
1028 isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG,
1029 ISPCCDC_CFG_Y8POS);
1030
1031
1032
1033
1034 if (ccdc->bt656)
1035 isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_REC656IF,
1036 ISPCCDC_REC656IF_R656ON | ISPCCDC_REC656IF_ECCFVH);
1037 else
1038 isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_REC656IF,
1039 ISPCCDC_REC656IF_R656ON | ISPCCDC_REC656IF_ECCFVH);
1040
1041}
1042
1043
1044static const u32 ccdc_sgrbg_pattern =
1045 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP0PLC0_SHIFT |
1046 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP0PLC1_SHIFT |
1047 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP0PLC2_SHIFT |
1048 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP0PLC3_SHIFT |
1049 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP1PLC0_SHIFT |
1050 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP1PLC1_SHIFT |
1051 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP1PLC2_SHIFT |
1052 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP1PLC3_SHIFT |
1053 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP2PLC0_SHIFT |
1054 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP2PLC1_SHIFT |
1055 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP2PLC2_SHIFT |
1056 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP2PLC3_SHIFT |
1057 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP3PLC0_SHIFT |
1058 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP3PLC1_SHIFT |
1059 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP3PLC2_SHIFT |
1060 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP3PLC3_SHIFT;
1061
1062static const u32 ccdc_srggb_pattern =
1063 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP0PLC0_SHIFT |
1064 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP0PLC1_SHIFT |
1065 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP0PLC2_SHIFT |
1066 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP0PLC3_SHIFT |
1067 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP1PLC0_SHIFT |
1068 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP1PLC1_SHIFT |
1069 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP1PLC2_SHIFT |
1070 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP1PLC3_SHIFT |
1071 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP2PLC0_SHIFT |
1072 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP2PLC1_SHIFT |
1073 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP2PLC2_SHIFT |
1074 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP2PLC3_SHIFT |
1075 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP3PLC0_SHIFT |
1076 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP3PLC1_SHIFT |
1077 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP3PLC2_SHIFT |
1078 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP3PLC3_SHIFT;
1079
1080static const u32 ccdc_sbggr_pattern =
1081 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP0PLC0_SHIFT |
1082 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP0PLC1_SHIFT |
1083 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP0PLC2_SHIFT |
1084 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP0PLC3_SHIFT |
1085 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP1PLC0_SHIFT |
1086 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP1PLC1_SHIFT |
1087 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP1PLC2_SHIFT |
1088 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP1PLC3_SHIFT |
1089 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP2PLC0_SHIFT |
1090 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP2PLC1_SHIFT |
1091 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP2PLC2_SHIFT |
1092 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP2PLC3_SHIFT |
1093 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP3PLC0_SHIFT |
1094 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP3PLC1_SHIFT |
1095 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP3PLC2_SHIFT |
1096 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP3PLC3_SHIFT;
1097
1098static const u32 ccdc_sgbrg_pattern =
1099 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP0PLC0_SHIFT |
1100 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP0PLC1_SHIFT |
1101 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP0PLC2_SHIFT |
1102 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP0PLC3_SHIFT |
1103 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP1PLC0_SHIFT |
1104 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP1PLC1_SHIFT |
1105 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP1PLC2_SHIFT |
1106 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP1PLC3_SHIFT |
1107 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP2PLC0_SHIFT |
1108 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP2PLC1_SHIFT |
1109 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP2PLC2_SHIFT |
1110 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP2PLC3_SHIFT |
1111 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP3PLC0_SHIFT |
1112 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP3PLC1_SHIFT |
1113 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP3PLC2_SHIFT |
1114 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP3PLC3_SHIFT;
1115
1116static void ccdc_configure(struct isp_ccdc_device *ccdc)
1117{
1118 struct isp_device *isp = to_isp_device(ccdc);
1119 struct isp_parallel_cfg *parcfg = NULL;
1120 struct v4l2_subdev *sensor;
1121 struct v4l2_mbus_framefmt *format;
1122 const struct v4l2_rect *crop;
1123 const struct isp_format_info *fmt_info;
1124 struct v4l2_subdev_format fmt_src;
1125 unsigned int depth_out;
1126 unsigned int depth_in = 0;
1127 struct media_pad *pad;
1128 unsigned long flags;
1129 unsigned int bridge;
1130 unsigned int shift;
1131 unsigned int nph;
1132 unsigned int sph;
1133 u32 syn_mode;
1134 u32 ccdc_pattern;
1135
1136 ccdc->bt656 = false;
1137 ccdc->fields = 0;
1138
1139 pad = media_entity_remote_pad(&ccdc->pads[CCDC_PAD_SINK]);
1140 sensor = media_entity_to_v4l2_subdev(pad->entity);
1141 if (ccdc->input == CCDC_INPUT_PARALLEL) {
1142 struct v4l2_mbus_config cfg;
1143 int ret;
1144
1145 ret = v4l2_subdev_call(sensor, video, g_mbus_config, &cfg);
1146 if (!ret)
1147 ccdc->bt656 = cfg.type == V4L2_MBUS_BT656;
1148
1149 parcfg = &((struct isp_bus_cfg *)sensor->host_priv)
1150 ->bus.parallel;
1151 }
1152
1153
1154 format = &ccdc->formats[CCDC_PAD_SINK];
1155
1156
1157
1158
1159 fmt_src.pad = pad->index;
1160 fmt_src.which = V4L2_SUBDEV_FORMAT_ACTIVE;
1161 if (!v4l2_subdev_call(sensor, pad, get_fmt, NULL, &fmt_src)) {
1162 fmt_info = omap3isp_video_format_info(fmt_src.format.code);
1163 depth_in = fmt_info->width;
1164 }
1165
1166 fmt_info = omap3isp_video_format_info(format->code);
1167 depth_out = fmt_info->width;
1168 shift = depth_in - depth_out;
1169
1170 if (ccdc->bt656)
1171 bridge = ISPCTRL_PAR_BRIDGE_DISABLE;
1172 else if (fmt_info->code == MEDIA_BUS_FMT_YUYV8_2X8)
1173 bridge = ISPCTRL_PAR_BRIDGE_LENDIAN;
1174 else if (fmt_info->code == MEDIA_BUS_FMT_UYVY8_2X8)
1175 bridge = ISPCTRL_PAR_BRIDGE_BENDIAN;
1176 else
1177 bridge = ISPCTRL_PAR_BRIDGE_DISABLE;
1178
1179 omap3isp_configure_bridge(isp, ccdc->input, parcfg, shift, bridge);
1180
1181
1182 ccdc_config_sync_if(ccdc, parcfg, depth_out);
1183
1184 syn_mode = isp_reg_readl(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE);
1185
1186
1187
1188
1189 syn_mode &= ~ISPCCDC_SYN_MODE_VP2SDR;
1190
1191 if (ccdc->output & CCDC_OUTPUT_MEMORY)
1192 syn_mode |= ISPCCDC_SYN_MODE_WEN;
1193 else
1194 syn_mode &= ~ISPCCDC_SYN_MODE_WEN;
1195
1196 if (ccdc->output & CCDC_OUTPUT_RESIZER)
1197 syn_mode |= ISPCCDC_SYN_MODE_SDR2RSZ;
1198 else
1199 syn_mode &= ~ISPCCDC_SYN_MODE_SDR2RSZ;
1200
1201
1202 switch (format->code) {
1203 case MEDIA_BUS_FMT_SRGGB10_1X10:
1204 case MEDIA_BUS_FMT_SRGGB12_1X12:
1205 ccdc_pattern = ccdc_srggb_pattern;
1206 break;
1207 case MEDIA_BUS_FMT_SBGGR10_1X10:
1208 case MEDIA_BUS_FMT_SBGGR12_1X12:
1209 ccdc_pattern = ccdc_sbggr_pattern;
1210 break;
1211 case MEDIA_BUS_FMT_SGBRG10_1X10:
1212 case MEDIA_BUS_FMT_SGBRG12_1X12:
1213 ccdc_pattern = ccdc_sgbrg_pattern;
1214 break;
1215 default:
1216
1217 ccdc_pattern = ccdc_sgrbg_pattern;
1218 break;
1219 }
1220 ccdc_config_imgattr(ccdc, ccdc_pattern);
1221
1222
1223
1224
1225 isp_reg_writel(isp, ((format->height - 2) << ISPCCDC_VDINT_0_SHIFT) |
1226 ((format->height * 2 / 3) << ISPCCDC_VDINT_1_SHIFT),
1227 OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VDINT);
1228
1229
1230 format = &ccdc->formats[CCDC_PAD_SOURCE_OF];
1231 crop = &ccdc->crop;
1232
1233
1234
1235
1236
1237
1238 if (ccdc->bt656) {
1239 sph = crop->left * 2;
1240 nph = crop->width * 2 - 1;
1241 } else {
1242 sph = crop->left;
1243 nph = crop->width - 1;
1244 }
1245
1246 isp_reg_writel(isp, (sph << ISPCCDC_HORZ_INFO_SPH_SHIFT) |
1247 (nph << ISPCCDC_HORZ_INFO_NPH_SHIFT),
1248 OMAP3_ISP_IOMEM_CCDC, ISPCCDC_HORZ_INFO);
1249 isp_reg_writel(isp, (crop->top << ISPCCDC_VERT_START_SLV0_SHIFT) |
1250 (crop->top << ISPCCDC_VERT_START_SLV1_SHIFT),
1251 OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VERT_START);
1252 isp_reg_writel(isp, (crop->height - 1)
1253 << ISPCCDC_VERT_LINES_NLV_SHIFT,
1254 OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VERT_LINES);
1255
1256 ccdc_config_outlineoffset(ccdc, ccdc->video_out.bpl_value,
1257 format->field);
1258
1259
1260
1261
1262
1263 if (ccdc->formats[CCDC_PAD_SINK].field == V4L2_FIELD_ALTERNATE &&
1264 (format->field == V4L2_FIELD_INTERLACED_TB ||
1265 format->field == V4L2_FIELD_INTERLACED_BT))
1266 syn_mode |= ISPCCDC_SYN_MODE_FLDMODE;
1267
1268
1269
1270
1271 if (format->code == MEDIA_BUS_FMT_YUYV8_1X16)
1272 isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG,
1273 ISPCCDC_CFG_BSWD);
1274 else
1275 isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG,
1276 ISPCCDC_CFG_BSWD);
1277
1278
1279
1280
1281
1282 if (omap3isp_video_format_info(format->code)->width <= 8 || ccdc->bt656)
1283 syn_mode |= ISPCCDC_SYN_MODE_PACK8;
1284 else
1285 syn_mode &= ~ISPCCDC_SYN_MODE_PACK8;
1286
1287 isp_reg_writel(isp, syn_mode, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE);
1288
1289
1290 ccdc_config_vp(ccdc);
1291
1292
1293 spin_lock_irqsave(&ccdc->lsc.req_lock, flags);
1294 if (ccdc->lsc.request == NULL)
1295 goto unlock;
1296
1297 WARN_ON(ccdc->lsc.active);
1298
1299
1300
1301
1302 if (ccdc->lsc.active == NULL &&
1303 __ccdc_lsc_configure(ccdc, ccdc->lsc.request) == 0) {
1304 ccdc->lsc.active = ccdc->lsc.request;
1305 } else {
1306 list_add_tail(&ccdc->lsc.request->list, &ccdc->lsc.free_queue);
1307 schedule_work(&ccdc->lsc.table_work);
1308 }
1309
1310 ccdc->lsc.request = NULL;
1311
1312unlock:
1313 spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags);
1314
1315 ccdc_apply_controls(ccdc);
1316}
1317
1318static void __ccdc_enable(struct isp_ccdc_device *ccdc, int enable)
1319{
1320 struct isp_device *isp = to_isp_device(ccdc);
1321
1322 isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_PCR,
1323 ISPCCDC_PCR_EN, enable ? ISPCCDC_PCR_EN : 0);
1324
1325 ccdc->running = enable;
1326}
1327
1328static int ccdc_disable(struct isp_ccdc_device *ccdc)
1329{
1330 unsigned long flags;
1331 int ret = 0;
1332
1333 spin_lock_irqsave(&ccdc->lock, flags);
1334 if (ccdc->state == ISP_PIPELINE_STREAM_CONTINUOUS)
1335 ccdc->stopping = CCDC_STOP_REQUEST;
1336 if (!ccdc->running)
1337 ccdc->stopping = CCDC_STOP_FINISHED;
1338 spin_unlock_irqrestore(&ccdc->lock, flags);
1339
1340 ret = wait_event_timeout(ccdc->wait,
1341 ccdc->stopping == CCDC_STOP_FINISHED,
1342 msecs_to_jiffies(2000));
1343 if (ret == 0) {
1344 ret = -ETIMEDOUT;
1345 dev_warn(to_device(ccdc), "CCDC stop timeout!\n");
1346 }
1347
1348 omap3isp_sbl_disable(to_isp_device(ccdc), OMAP3_ISP_SBL_CCDC_LSC_READ);
1349
1350 mutex_lock(&ccdc->ioctl_lock);
1351 ccdc_lsc_free_request(ccdc, ccdc->lsc.request);
1352 ccdc->lsc.request = ccdc->lsc.active;
1353 ccdc->lsc.active = NULL;
1354 cancel_work_sync(&ccdc->lsc.table_work);
1355 ccdc_lsc_free_queue(ccdc, &ccdc->lsc.free_queue);
1356 mutex_unlock(&ccdc->ioctl_lock);
1357
1358 ccdc->stopping = CCDC_STOP_NOT_REQUESTED;
1359
1360 return ret > 0 ? 0 : ret;
1361}
1362
1363static void ccdc_enable(struct isp_ccdc_device *ccdc)
1364{
1365 if (ccdc_lsc_is_configured(ccdc))
1366 __ccdc_lsc_enable(ccdc, 1);
1367 __ccdc_enable(ccdc, 1);
1368}
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381static int ccdc_sbl_busy(struct isp_ccdc_device *ccdc)
1382{
1383 struct isp_device *isp = to_isp_device(ccdc);
1384
1385 return omap3isp_ccdc_busy(ccdc)
1386 | (isp_reg_readl(isp, OMAP3_ISP_IOMEM_SBL, ISPSBL_CCDC_WR_0) &
1387 ISPSBL_CCDC_WR_0_DATA_READY)
1388 | (isp_reg_readl(isp, OMAP3_ISP_IOMEM_SBL, ISPSBL_CCDC_WR_1) &
1389 ISPSBL_CCDC_WR_0_DATA_READY)
1390 | (isp_reg_readl(isp, OMAP3_ISP_IOMEM_SBL, ISPSBL_CCDC_WR_2) &
1391 ISPSBL_CCDC_WR_0_DATA_READY)
1392 | (isp_reg_readl(isp, OMAP3_ISP_IOMEM_SBL, ISPSBL_CCDC_WR_3) &
1393 ISPSBL_CCDC_WR_0_DATA_READY);
1394}
1395
1396
1397
1398
1399
1400
1401static int ccdc_sbl_wait_idle(struct isp_ccdc_device *ccdc,
1402 unsigned int max_wait)
1403{
1404 unsigned int wait = 0;
1405
1406 if (max_wait == 0)
1407 max_wait = 10000;
1408
1409 for (wait = 0; wait <= max_wait; wait++) {
1410 if (!ccdc_sbl_busy(ccdc))
1411 return 0;
1412
1413 rmb();
1414 udelay(1);
1415 }
1416
1417 return -EBUSY;
1418}
1419
1420
1421
1422
1423
1424
1425
1426
1427static int ccdc_handle_stopping(struct isp_ccdc_device *ccdc, u32 event)
1428{
1429 int rval = 0;
1430
1431 switch ((ccdc->stopping & 3) | event) {
1432 case CCDC_STOP_REQUEST | CCDC_EVENT_VD1:
1433 if (ccdc->lsc.state != LSC_STATE_STOPPED)
1434 __ccdc_lsc_enable(ccdc, 0);
1435 __ccdc_enable(ccdc, 0);
1436 ccdc->stopping = CCDC_STOP_EXECUTED;
1437 return 1;
1438
1439 case CCDC_STOP_EXECUTED | CCDC_EVENT_VD0:
1440 ccdc->stopping |= CCDC_STOP_CCDC_FINISHED;
1441 if (ccdc->lsc.state == LSC_STATE_STOPPED)
1442 ccdc->stopping |= CCDC_STOP_LSC_FINISHED;
1443 rval = 1;
1444 break;
1445
1446 case CCDC_STOP_EXECUTED | CCDC_EVENT_LSC_DONE:
1447 ccdc->stopping |= CCDC_STOP_LSC_FINISHED;
1448 rval = 1;
1449 break;
1450
1451 case CCDC_STOP_EXECUTED | CCDC_EVENT_VD1:
1452 return 1;
1453 }
1454
1455 if (ccdc->stopping == CCDC_STOP_FINISHED) {
1456 wake_up(&ccdc->wait);
1457 rval = 1;
1458 }
1459
1460 return rval;
1461}
1462
1463static void ccdc_hs_vs_isr(struct isp_ccdc_device *ccdc)
1464{
1465 struct isp_pipeline *pipe = to_isp_pipeline(&ccdc->subdev.entity);
1466 struct video_device *vdev = ccdc->subdev.devnode;
1467 struct v4l2_event event;
1468
1469
1470 atomic_inc(&pipe->frame_number);
1471
1472 memset(&event, 0, sizeof(event));
1473 event.type = V4L2_EVENT_FRAME_SYNC;
1474 event.u.frame_sync.frame_sequence = atomic_read(&pipe->frame_number);
1475
1476 v4l2_event_queue(vdev, &event);
1477}
1478
1479
1480
1481
1482
1483
1484static void ccdc_lsc_isr(struct isp_ccdc_device *ccdc, u32 events)
1485{
1486 unsigned long flags;
1487
1488 if (events & IRQ0STATUS_CCDC_LSC_PREF_ERR_IRQ) {
1489 struct isp_pipeline *pipe =
1490 to_isp_pipeline(&ccdc->subdev.entity);
1491
1492 ccdc_lsc_error_handler(ccdc);
1493 pipe->error = true;
1494 dev_dbg(to_device(ccdc), "lsc prefetch error\n");
1495 }
1496
1497 if (!(events & IRQ0STATUS_CCDC_LSC_DONE_IRQ))
1498 return;
1499
1500
1501
1502
1503
1504 spin_lock_irqsave(&ccdc->lsc.req_lock, flags);
1505
1506 if (ccdc->lsc.state == LSC_STATE_STOPPING)
1507 ccdc->lsc.state = LSC_STATE_STOPPED;
1508
1509 if (ccdc_handle_stopping(ccdc, CCDC_EVENT_LSC_DONE))
1510 goto done;
1511
1512 if (ccdc->lsc.state != LSC_STATE_RECONFIG)
1513 goto done;
1514
1515
1516 ccdc->lsc.state = LSC_STATE_STOPPED;
1517
1518
1519
1520
1521
1522 if (events & IRQ0STATUS_HS_VS_IRQ)
1523 goto done;
1524
1525
1526
1527
1528 if (ccdc->lsc.request == NULL)
1529 goto done;
1530
1531 ccdc_lsc_enable(ccdc);
1532
1533done:
1534 spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags);
1535}
1536
1537
1538
1539
1540
1541static bool ccdc_has_all_fields(struct isp_ccdc_device *ccdc)
1542{
1543 struct isp_pipeline *pipe = to_isp_pipeline(&ccdc->subdev.entity);
1544 struct isp_device *isp = to_isp_device(ccdc);
1545 enum v4l2_field of_field = ccdc->formats[CCDC_PAD_SOURCE_OF].field;
1546 enum v4l2_field field;
1547
1548
1549 if (of_field == V4L2_FIELD_NONE)
1550 return true;
1551
1552
1553 field = isp_reg_readl(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE)
1554 & ISPCCDC_SYN_MODE_FLDSTAT
1555 ? V4L2_FIELD_BOTTOM : V4L2_FIELD_TOP;
1556
1557
1558
1559
1560 if (of_field == V4L2_FIELD_ALTERNATE) {
1561 pipe->field = field;
1562 return true;
1563 }
1564
1565
1566 ccdc->fields |= field == V4L2_FIELD_BOTTOM
1567 ? CCDC_FIELD_BOTTOM : CCDC_FIELD_TOP;
1568
1569 if (ccdc->fields != CCDC_FIELD_BOTH)
1570 return false;
1571
1572
1573
1574
1575 if ((of_field == V4L2_FIELD_INTERLACED_TB && field == V4L2_FIELD_TOP) ||
1576 (of_field == V4L2_FIELD_INTERLACED_BT && field == V4L2_FIELD_BOTTOM))
1577 return false;
1578
1579
1580 ccdc->fields = 0;
1581
1582 return true;
1583}
1584
1585static int ccdc_isr_buffer(struct isp_ccdc_device *ccdc)
1586{
1587 struct isp_pipeline *pipe = to_isp_pipeline(&ccdc->subdev.entity);
1588 struct isp_device *isp = to_isp_device(ccdc);
1589 struct isp_buffer *buffer;
1590
1591
1592
1593
1594
1595
1596
1597 if (list_empty(&ccdc->video_out.dmaqueue))
1598 return 0;
1599
1600
1601
1602
1603
1604 if (ccdc->state == ISP_PIPELINE_STREAM_CONTINUOUS && ccdc->underrun) {
1605 ccdc->underrun = 0;
1606 return 1;
1607 }
1608
1609
1610 if (ccdc_sbl_wait_idle(ccdc, 1000)) {
1611 dev_info(isp->dev, "CCDC won't become idle!\n");
1612 media_entity_enum_set(&isp->crashed, &ccdc->subdev.entity);
1613 omap3isp_pipeline_cancel_stream(pipe);
1614 return 0;
1615 }
1616
1617 if (!ccdc_has_all_fields(ccdc))
1618 return 1;
1619
1620 buffer = omap3isp_video_buffer_next(&ccdc->video_out);
1621 if (buffer != NULL)
1622 ccdc_set_outaddr(ccdc, buffer->dma);
1623
1624 pipe->state |= ISP_PIPELINE_IDLE_OUTPUT;
1625
1626 if (ccdc->state == ISP_PIPELINE_STREAM_SINGLESHOT &&
1627 isp_pipeline_ready(pipe))
1628 omap3isp_pipeline_set_stream(pipe,
1629 ISP_PIPELINE_STREAM_SINGLESHOT);
1630
1631 return buffer != NULL;
1632}
1633
1634
1635
1636
1637
1638
1639
1640static void ccdc_vd0_isr(struct isp_ccdc_device *ccdc)
1641{
1642 unsigned long flags;
1643 int restart = 0;
1644
1645
1646
1647
1648 if (ccdc->bt656) {
1649 struct isp_pipeline *pipe =
1650 to_isp_pipeline(&ccdc->subdev.entity);
1651
1652 atomic_inc(&pipe->frame_number);
1653 }
1654
1655
1656
1657
1658
1659 if (ccdc->bt656) {
1660 spin_lock_irqsave(&ccdc->lock, flags);
1661 if (ccdc->state == ISP_PIPELINE_STREAM_CONTINUOUS &&
1662 ccdc->output & CCDC_OUTPUT_MEMORY) {
1663 if (ccdc->lsc.state != LSC_STATE_STOPPED)
1664 __ccdc_lsc_enable(ccdc, 0);
1665 __ccdc_enable(ccdc, 0);
1666 }
1667 ccdc_handle_stopping(ccdc, CCDC_EVENT_VD1);
1668 spin_unlock_irqrestore(&ccdc->lock, flags);
1669 }
1670
1671 if (ccdc->output & CCDC_OUTPUT_MEMORY)
1672 restart = ccdc_isr_buffer(ccdc);
1673
1674 spin_lock_irqsave(&ccdc->lock, flags);
1675
1676 if (ccdc_handle_stopping(ccdc, CCDC_EVENT_VD0)) {
1677 spin_unlock_irqrestore(&ccdc->lock, flags);
1678 return;
1679 }
1680
1681 if (!ccdc->shadow_update)
1682 ccdc_apply_controls(ccdc);
1683 spin_unlock_irqrestore(&ccdc->lock, flags);
1684
1685 if (restart)
1686 ccdc_enable(ccdc);
1687}
1688
1689
1690
1691
1692
1693static void ccdc_vd1_isr(struct isp_ccdc_device *ccdc)
1694{
1695 unsigned long flags;
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706 if (ccdc->bt656)
1707 return;
1708
1709 spin_lock_irqsave(&ccdc->lsc.req_lock, flags);
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721 switch (ccdc->state) {
1722 case ISP_PIPELINE_STREAM_SINGLESHOT:
1723 ccdc->stopping = CCDC_STOP_REQUEST;
1724 break;
1725
1726 case ISP_PIPELINE_STREAM_CONTINUOUS:
1727 if (ccdc->output & CCDC_OUTPUT_MEMORY) {
1728 if (ccdc->lsc.state != LSC_STATE_STOPPED)
1729 __ccdc_lsc_enable(ccdc, 0);
1730 __ccdc_enable(ccdc, 0);
1731 }
1732 break;
1733
1734 case ISP_PIPELINE_STREAM_STOPPED:
1735 break;
1736 }
1737
1738 if (ccdc_handle_stopping(ccdc, CCDC_EVENT_VD1))
1739 goto done;
1740
1741 if (ccdc->lsc.request == NULL)
1742 goto done;
1743
1744
1745
1746
1747
1748 if (ccdc->lsc.state == LSC_STATE_RUNNING) {
1749 __ccdc_lsc_enable(ccdc, 0);
1750 ccdc->lsc.state = LSC_STATE_RECONFIG;
1751 goto done;
1752 }
1753
1754
1755 if (ccdc->lsc.state == LSC_STATE_STOPPED)
1756 ccdc_lsc_enable(ccdc);
1757
1758done:
1759 spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags);
1760}
1761
1762
1763
1764
1765
1766
1767int omap3isp_ccdc_isr(struct isp_ccdc_device *ccdc, u32 events)
1768{
1769 if (ccdc->state == ISP_PIPELINE_STREAM_STOPPED)
1770 return 0;
1771
1772 if (events & IRQ0STATUS_CCDC_VD1_IRQ)
1773 ccdc_vd1_isr(ccdc);
1774
1775 ccdc_lsc_isr(ccdc, events);
1776
1777 if (events & IRQ0STATUS_CCDC_VD0_IRQ)
1778 ccdc_vd0_isr(ccdc);
1779
1780 if (events & IRQ0STATUS_HS_VS_IRQ)
1781 ccdc_hs_vs_isr(ccdc);
1782
1783 return 0;
1784}
1785
1786
1787
1788
1789
1790static int ccdc_video_queue(struct isp_video *video, struct isp_buffer *buffer)
1791{
1792 struct isp_ccdc_device *ccdc = &video->isp->isp_ccdc;
1793 unsigned long flags;
1794 bool restart = false;
1795
1796 if (!(ccdc->output & CCDC_OUTPUT_MEMORY))
1797 return -ENODEV;
1798
1799 ccdc_set_outaddr(ccdc, buffer->dma);
1800
1801
1802
1803
1804
1805
1806
1807 spin_lock_irqsave(&ccdc->lock, flags);
1808 if (ccdc->state == ISP_PIPELINE_STREAM_CONTINUOUS && !ccdc->running &&
1809 ccdc->bt656)
1810 restart = true;
1811 else
1812 ccdc->underrun = 1;
1813 spin_unlock_irqrestore(&ccdc->lock, flags);
1814
1815 if (restart)
1816 ccdc_enable(ccdc);
1817
1818 return 0;
1819}
1820
1821static const struct isp_video_operations ccdc_video_ops = {
1822 .queue = ccdc_video_queue,
1823};
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837static long ccdc_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
1838{
1839 struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
1840 int ret;
1841
1842 switch (cmd) {
1843 case VIDIOC_OMAP3ISP_CCDC_CFG:
1844 mutex_lock(&ccdc->ioctl_lock);
1845 ret = ccdc_config(ccdc, arg);
1846 mutex_unlock(&ccdc->ioctl_lock);
1847 break;
1848
1849 default:
1850 return -ENOIOCTLCMD;
1851 }
1852
1853 return ret;
1854}
1855
1856static int ccdc_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
1857 struct v4l2_event_subscription *sub)
1858{
1859 if (sub->type != V4L2_EVENT_FRAME_SYNC)
1860 return -EINVAL;
1861
1862
1863 if (sub->id != 0)
1864 return -EINVAL;
1865
1866 return v4l2_event_subscribe(fh, sub, OMAP3ISP_CCDC_NEVENTS, NULL);
1867}
1868
1869static int ccdc_unsubscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
1870 struct v4l2_event_subscription *sub)
1871{
1872 return v4l2_event_unsubscribe(fh, sub);
1873}
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887static int ccdc_set_stream(struct v4l2_subdev *sd, int enable)
1888{
1889 struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
1890 struct isp_device *isp = to_isp_device(ccdc);
1891 int ret = 0;
1892
1893 if (ccdc->state == ISP_PIPELINE_STREAM_STOPPED) {
1894 if (enable == ISP_PIPELINE_STREAM_STOPPED)
1895 return 0;
1896
1897 omap3isp_subclk_enable(isp, OMAP3_ISP_SUBCLK_CCDC);
1898 isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG,
1899 ISPCCDC_CFG_VDLC);
1900
1901 ccdc_configure(ccdc);
1902
1903 ccdc_print_status(ccdc);
1904 }
1905
1906 switch (enable) {
1907 case ISP_PIPELINE_STREAM_CONTINUOUS:
1908 if (ccdc->output & CCDC_OUTPUT_MEMORY)
1909 omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_CCDC_WRITE);
1910
1911 if (ccdc->underrun || !(ccdc->output & CCDC_OUTPUT_MEMORY))
1912 ccdc_enable(ccdc);
1913
1914 ccdc->underrun = 0;
1915 break;
1916
1917 case ISP_PIPELINE_STREAM_SINGLESHOT:
1918 if (ccdc->output & CCDC_OUTPUT_MEMORY &&
1919 ccdc->state != ISP_PIPELINE_STREAM_SINGLESHOT)
1920 omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_CCDC_WRITE);
1921
1922 ccdc_enable(ccdc);
1923 break;
1924
1925 case ISP_PIPELINE_STREAM_STOPPED:
1926 ret = ccdc_disable(ccdc);
1927 if (ccdc->output & CCDC_OUTPUT_MEMORY)
1928 omap3isp_sbl_disable(isp, OMAP3_ISP_SBL_CCDC_WRITE);
1929 omap3isp_subclk_disable(isp, OMAP3_ISP_SUBCLK_CCDC);
1930 ccdc->underrun = 0;
1931 break;
1932 }
1933
1934 ccdc->state = enable;
1935 return ret;
1936}
1937
1938static struct v4l2_mbus_framefmt *
1939__ccdc_get_format(struct isp_ccdc_device *ccdc, struct v4l2_subdev_pad_config *cfg,
1940 unsigned int pad, enum v4l2_subdev_format_whence which)
1941{
1942 if (which == V4L2_SUBDEV_FORMAT_TRY)
1943 return v4l2_subdev_get_try_format(&ccdc->subdev, cfg, pad);
1944 else
1945 return &ccdc->formats[pad];
1946}
1947
1948static struct v4l2_rect *
1949__ccdc_get_crop(struct isp_ccdc_device *ccdc, struct v4l2_subdev_pad_config *cfg,
1950 enum v4l2_subdev_format_whence which)
1951{
1952 if (which == V4L2_SUBDEV_FORMAT_TRY)
1953 return v4l2_subdev_get_try_crop(&ccdc->subdev, cfg, CCDC_PAD_SOURCE_OF);
1954 else
1955 return &ccdc->crop;
1956}
1957
1958
1959
1960
1961
1962
1963
1964
1965static void
1966ccdc_try_format(struct isp_ccdc_device *ccdc, struct v4l2_subdev_pad_config *cfg,
1967 unsigned int pad, struct v4l2_mbus_framefmt *fmt,
1968 enum v4l2_subdev_format_whence which)
1969{
1970 const struct isp_format_info *info;
1971 u32 pixelcode;
1972 unsigned int width = fmt->width;
1973 unsigned int height = fmt->height;
1974 struct v4l2_rect *crop;
1975 enum v4l2_field field;
1976 unsigned int i;
1977
1978 switch (pad) {
1979 case CCDC_PAD_SINK:
1980 for (i = 0; i < ARRAY_SIZE(ccdc_fmts); i++) {
1981 if (fmt->code == ccdc_fmts[i])
1982 break;
1983 }
1984
1985
1986 if (i >= ARRAY_SIZE(ccdc_fmts))
1987 fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
1988
1989
1990 fmt->width = clamp_t(u32, width, 32, 4096);
1991 fmt->height = clamp_t(u32, height, 32, 4096);
1992
1993
1994 if (fmt->field == V4L2_FIELD_ANY)
1995 fmt->field = V4L2_FIELD_NONE;
1996
1997 break;
1998
1999 case CCDC_PAD_SOURCE_OF:
2000 pixelcode = fmt->code;
2001 field = fmt->field;
2002 *fmt = *__ccdc_get_format(ccdc, cfg, CCDC_PAD_SINK, which);
2003
2004
2005
2006
2007
2008
2009
2010
2011 if (fmt->code == MEDIA_BUS_FMT_YUYV8_2X8 ||
2012 fmt->code == MEDIA_BUS_FMT_UYVY8_2X8) {
2013
2014 if (pixelcode == MEDIA_BUS_FMT_YUYV8_2X8 ||
2015 pixelcode == MEDIA_BUS_FMT_UYVY8_2X8 ||
2016 pixelcode == MEDIA_BUS_FMT_YUYV8_1X16 ||
2017 pixelcode == MEDIA_BUS_FMT_UYVY8_1X16)
2018 fmt->code = pixelcode;
2019
2020 if (fmt->code == MEDIA_BUS_FMT_YUYV8_2X8)
2021 fmt->code = MEDIA_BUS_FMT_YUYV8_1X16;
2022 else if (fmt->code == MEDIA_BUS_FMT_UYVY8_2X8)
2023 fmt->code = MEDIA_BUS_FMT_UYVY8_1X16;
2024 }
2025
2026
2027 crop = __ccdc_get_crop(ccdc, cfg, which);
2028 fmt->width = crop->width;
2029 fmt->height = crop->height;
2030
2031
2032
2033
2034 if (fmt->field == V4L2_FIELD_ALTERNATE &&
2035 (field == V4L2_FIELD_INTERLACED_TB ||
2036 field == V4L2_FIELD_INTERLACED_BT)) {
2037 fmt->field = field;
2038 fmt->height *= 2;
2039 }
2040
2041 break;
2042
2043 case CCDC_PAD_SOURCE_VP:
2044 *fmt = *__ccdc_get_format(ccdc, cfg, CCDC_PAD_SINK, which);
2045
2046
2047 info = omap3isp_video_format_info(fmt->code);
2048 fmt->code = info->truncated;
2049
2050
2051 if (fmt->code == MEDIA_BUS_FMT_YUYV8_2X8 ||
2052 fmt->code == MEDIA_BUS_FMT_UYVY8_2X8)
2053 fmt->code = 0;
2054
2055
2056
2057
2058
2059 fmt->width = clamp_t(u32, width, 32, fmt->width);
2060 fmt->height = clamp_t(u32, height, 32, fmt->height - 1);
2061 break;
2062 }
2063
2064
2065
2066
2067 fmt->colorspace = V4L2_COLORSPACE_SRGB;
2068}
2069
2070
2071
2072
2073
2074
2075
2076static void ccdc_try_crop(struct isp_ccdc_device *ccdc,
2077 const struct v4l2_mbus_framefmt *sink,
2078 struct v4l2_rect *crop)
2079{
2080 const struct isp_format_info *info;
2081 unsigned int max_width;
2082
2083
2084
2085
2086 info = omap3isp_video_format_info(sink->code);
2087 if (info->flavor != MEDIA_BUS_FMT_Y8_1X8) {
2088 crop->left &= ~1;
2089 crop->top &= ~1;
2090 }
2091
2092 crop->left = clamp_t(u32, crop->left, 0, sink->width - CCDC_MIN_WIDTH);
2093 crop->top = clamp_t(u32, crop->top, 0, sink->height - CCDC_MIN_HEIGHT);
2094
2095
2096
2097
2098
2099
2100 max_width = (sink->width - crop->left + 15) & ~15;
2101 crop->width = clamp_t(u32, crop->width, CCDC_MIN_WIDTH, max_width)
2102 & ~15;
2103 crop->height = clamp_t(u32, crop->height, CCDC_MIN_HEIGHT,
2104 sink->height - crop->top);
2105
2106
2107 if (info->flavor != MEDIA_BUS_FMT_Y8_1X8) {
2108 crop->width &= ~1;
2109 crop->height &= ~1;
2110 }
2111}
2112
2113
2114
2115
2116
2117
2118
2119
2120static int ccdc_enum_mbus_code(struct v4l2_subdev *sd,
2121 struct v4l2_subdev_pad_config *cfg,
2122 struct v4l2_subdev_mbus_code_enum *code)
2123{
2124 struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
2125 struct v4l2_mbus_framefmt *format;
2126
2127 switch (code->pad) {
2128 case CCDC_PAD_SINK:
2129 if (code->index >= ARRAY_SIZE(ccdc_fmts))
2130 return -EINVAL;
2131
2132 code->code = ccdc_fmts[code->index];
2133 break;
2134
2135 case CCDC_PAD_SOURCE_OF:
2136 format = __ccdc_get_format(ccdc, cfg, code->pad,
2137 code->which);
2138
2139 if (format->code == MEDIA_BUS_FMT_YUYV8_2X8 ||
2140 format->code == MEDIA_BUS_FMT_UYVY8_2X8) {
2141
2142 if (code->index == 0)
2143 code->code = MEDIA_BUS_FMT_YUYV8_1X16;
2144 else if (code->index == 1)
2145 code->code = MEDIA_BUS_FMT_UYVY8_1X16;
2146 else
2147 return -EINVAL;
2148 } else {
2149
2150
2151
2152 if (code->index == 0)
2153 code->code = format->code;
2154 else
2155 return -EINVAL;
2156 }
2157 break;
2158
2159 case CCDC_PAD_SOURCE_VP:
2160
2161
2162
2163
2164 if (code->index != 0)
2165 return -EINVAL;
2166
2167 format = __ccdc_get_format(ccdc, cfg, code->pad,
2168 code->which);
2169
2170
2171
2172
2173 if (format->code == 0)
2174 return -EINVAL;
2175
2176 code->code = format->code;
2177 break;
2178
2179 default:
2180 return -EINVAL;
2181 }
2182
2183 return 0;
2184}
2185
2186static int ccdc_enum_frame_size(struct v4l2_subdev *sd,
2187 struct v4l2_subdev_pad_config *cfg,
2188 struct v4l2_subdev_frame_size_enum *fse)
2189{
2190 struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
2191 struct v4l2_mbus_framefmt format;
2192
2193 if (fse->index != 0)
2194 return -EINVAL;
2195
2196 format.code = fse->code;
2197 format.width = 1;
2198 format.height = 1;
2199 ccdc_try_format(ccdc, cfg, fse->pad, &format, fse->which);
2200 fse->min_width = format.width;
2201 fse->min_height = format.height;
2202
2203 if (format.code != fse->code)
2204 return -EINVAL;
2205
2206 format.code = fse->code;
2207 format.width = -1;
2208 format.height = -1;
2209 ccdc_try_format(ccdc, cfg, fse->pad, &format, fse->which);
2210 fse->max_width = format.width;
2211 fse->max_height = format.height;
2212
2213 return 0;
2214}
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227static int ccdc_get_selection(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
2228 struct v4l2_subdev_selection *sel)
2229{
2230 struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
2231 struct v4l2_mbus_framefmt *format;
2232
2233 if (sel->pad != CCDC_PAD_SOURCE_OF)
2234 return -EINVAL;
2235
2236 switch (sel->target) {
2237 case V4L2_SEL_TGT_CROP_BOUNDS:
2238 sel->r.left = 0;
2239 sel->r.top = 0;
2240 sel->r.width = INT_MAX;
2241 sel->r.height = INT_MAX;
2242
2243 format = __ccdc_get_format(ccdc, cfg, CCDC_PAD_SINK, sel->which);
2244 ccdc_try_crop(ccdc, format, &sel->r);
2245 break;
2246
2247 case V4L2_SEL_TGT_CROP:
2248 sel->r = *__ccdc_get_crop(ccdc, cfg, sel->which);
2249 break;
2250
2251 default:
2252 return -EINVAL;
2253 }
2254
2255 return 0;
2256}
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269static int ccdc_set_selection(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
2270 struct v4l2_subdev_selection *sel)
2271{
2272 struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
2273 struct v4l2_mbus_framefmt *format;
2274
2275 if (sel->target != V4L2_SEL_TGT_CROP ||
2276 sel->pad != CCDC_PAD_SOURCE_OF)
2277 return -EINVAL;
2278
2279
2280 if (ccdc->state != ISP_PIPELINE_STREAM_STOPPED)
2281 return -EBUSY;
2282
2283
2284
2285
2286
2287 if (sel->flags & V4L2_SEL_FLAG_KEEP_CONFIG) {
2288 sel->r = *__ccdc_get_crop(ccdc, cfg, sel->which);
2289 return 0;
2290 }
2291
2292 format = __ccdc_get_format(ccdc, cfg, CCDC_PAD_SINK, sel->which);
2293 ccdc_try_crop(ccdc, format, &sel->r);
2294 *__ccdc_get_crop(ccdc, cfg, sel->which) = sel->r;
2295
2296
2297 format = __ccdc_get_format(ccdc, cfg, CCDC_PAD_SOURCE_OF, sel->which);
2298 ccdc_try_format(ccdc, cfg, CCDC_PAD_SOURCE_OF, format, sel->which);
2299
2300 return 0;
2301}
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312static int ccdc_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
2313 struct v4l2_subdev_format *fmt)
2314{
2315 struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
2316 struct v4l2_mbus_framefmt *format;
2317
2318 format = __ccdc_get_format(ccdc, cfg, fmt->pad, fmt->which);
2319 if (format == NULL)
2320 return -EINVAL;
2321
2322 fmt->format = *format;
2323 return 0;
2324}
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335static int ccdc_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
2336 struct v4l2_subdev_format *fmt)
2337{
2338 struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
2339 struct v4l2_mbus_framefmt *format;
2340 struct v4l2_rect *crop;
2341
2342 format = __ccdc_get_format(ccdc, cfg, fmt->pad, fmt->which);
2343 if (format == NULL)
2344 return -EINVAL;
2345
2346 ccdc_try_format(ccdc, cfg, fmt->pad, &fmt->format, fmt->which);
2347 *format = fmt->format;
2348
2349
2350 if (fmt->pad == CCDC_PAD_SINK) {
2351
2352 crop = __ccdc_get_crop(ccdc, cfg, fmt->which);
2353 crop->left = 0;
2354 crop->top = 0;
2355 crop->width = fmt->format.width;
2356 crop->height = fmt->format.height;
2357
2358 ccdc_try_crop(ccdc, &fmt->format, crop);
2359
2360
2361 format = __ccdc_get_format(ccdc, cfg, CCDC_PAD_SOURCE_OF,
2362 fmt->which);
2363 *format = fmt->format;
2364 ccdc_try_format(ccdc, cfg, CCDC_PAD_SOURCE_OF, format,
2365 fmt->which);
2366
2367 format = __ccdc_get_format(ccdc, cfg, CCDC_PAD_SOURCE_VP,
2368 fmt->which);
2369 *format = fmt->format;
2370 ccdc_try_format(ccdc, cfg, CCDC_PAD_SOURCE_VP, format,
2371 fmt->which);
2372 }
2373
2374 return 0;
2375}
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387static bool ccdc_is_shiftable(u32 in, u32 out, unsigned int additional_shift)
2388{
2389 const struct isp_format_info *in_info, *out_info;
2390
2391 if (in == out)
2392 return true;
2393
2394 in_info = omap3isp_video_format_info(in);
2395 out_info = omap3isp_video_format_info(out);
2396
2397 if ((in_info->flavor == 0) || (out_info->flavor == 0))
2398 return false;
2399
2400 if (in_info->flavor != out_info->flavor)
2401 return false;
2402
2403 return in_info->width - out_info->width + additional_shift <= 6;
2404}
2405
2406static int ccdc_link_validate(struct v4l2_subdev *sd,
2407 struct media_link *link,
2408 struct v4l2_subdev_format *source_fmt,
2409 struct v4l2_subdev_format *sink_fmt)
2410{
2411 struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
2412 unsigned long parallel_shift;
2413
2414
2415 if (source_fmt->format.width != sink_fmt->format.width ||
2416 source_fmt->format.height != sink_fmt->format.height)
2417 return -EPIPE;
2418
2419
2420 if (ccdc->input == CCDC_INPUT_PARALLEL) {
2421 struct isp_parallel_cfg *parcfg =
2422 &((struct isp_bus_cfg *)
2423 media_entity_to_v4l2_subdev(link->source->entity)
2424 ->host_priv)->bus.parallel;
2425 parallel_shift = parcfg->data_lane_shift;
2426 } else {
2427 parallel_shift = 0;
2428 }
2429
2430
2431 if (!ccdc_is_shiftable(source_fmt->format.code,
2432 sink_fmt->format.code, parallel_shift))
2433 return -EPIPE;
2434
2435 return 0;
2436}
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447static int ccdc_init_formats(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
2448{
2449 struct v4l2_subdev_format format;
2450
2451 memset(&format, 0, sizeof(format));
2452 format.pad = CCDC_PAD_SINK;
2453 format.which = fh ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE;
2454 format.format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
2455 format.format.width = 4096;
2456 format.format.height = 4096;
2457 ccdc_set_format(sd, fh ? fh->pad : NULL, &format);
2458
2459 return 0;
2460}
2461
2462
2463static const struct v4l2_subdev_core_ops ccdc_v4l2_core_ops = {
2464 .ioctl = ccdc_ioctl,
2465 .subscribe_event = ccdc_subscribe_event,
2466 .unsubscribe_event = ccdc_unsubscribe_event,
2467};
2468
2469
2470static const struct v4l2_subdev_video_ops ccdc_v4l2_video_ops = {
2471 .s_stream = ccdc_set_stream,
2472};
2473
2474
2475static const struct v4l2_subdev_pad_ops ccdc_v4l2_pad_ops = {
2476 .enum_mbus_code = ccdc_enum_mbus_code,
2477 .enum_frame_size = ccdc_enum_frame_size,
2478 .get_fmt = ccdc_get_format,
2479 .set_fmt = ccdc_set_format,
2480 .get_selection = ccdc_get_selection,
2481 .set_selection = ccdc_set_selection,
2482 .link_validate = ccdc_link_validate,
2483};
2484
2485
2486static const struct v4l2_subdev_ops ccdc_v4l2_ops = {
2487 .core = &ccdc_v4l2_core_ops,
2488 .video = &ccdc_v4l2_video_ops,
2489 .pad = &ccdc_v4l2_pad_ops,
2490};
2491
2492
2493static const struct v4l2_subdev_internal_ops ccdc_v4l2_internal_ops = {
2494 .open = ccdc_init_formats,
2495};
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510static int ccdc_link_setup(struct media_entity *entity,
2511 const struct media_pad *local,
2512 const struct media_pad *remote, u32 flags)
2513{
2514 struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
2515 struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
2516 struct isp_device *isp = to_isp_device(ccdc);
2517 unsigned int index = local->index;
2518
2519
2520 if (is_media_entity_v4l2_subdev(remote->entity))
2521 index |= 2 << 16;
2522
2523 switch (index) {
2524 case CCDC_PAD_SINK | 2 << 16:
2525
2526
2527
2528 if (!(flags & MEDIA_LNK_FL_ENABLED)) {
2529 ccdc->input = CCDC_INPUT_NONE;
2530 break;
2531 }
2532
2533 if (ccdc->input != CCDC_INPUT_NONE)
2534 return -EBUSY;
2535
2536 if (remote->entity == &isp->isp_ccp2.subdev.entity)
2537 ccdc->input = CCDC_INPUT_CCP2B;
2538 else if (remote->entity == &isp->isp_csi2a.subdev.entity)
2539 ccdc->input = CCDC_INPUT_CSI2A;
2540 else if (remote->entity == &isp->isp_csi2c.subdev.entity)
2541 ccdc->input = CCDC_INPUT_CSI2C;
2542 else
2543 ccdc->input = CCDC_INPUT_PARALLEL;
2544
2545 break;
2546
2547
2548
2549
2550
2551
2552 case CCDC_PAD_SOURCE_VP | 2 << 16:
2553
2554
2555
2556 if (flags & MEDIA_LNK_FL_ENABLED) {
2557 if (ccdc->output & ~CCDC_OUTPUT_PREVIEW)
2558 return -EBUSY;
2559 ccdc->output |= CCDC_OUTPUT_PREVIEW;
2560 } else {
2561 ccdc->output &= ~CCDC_OUTPUT_PREVIEW;
2562 }
2563 break;
2564
2565 case CCDC_PAD_SOURCE_OF:
2566
2567 if (flags & MEDIA_LNK_FL_ENABLED) {
2568 if (ccdc->output & ~CCDC_OUTPUT_MEMORY)
2569 return -EBUSY;
2570 ccdc->output |= CCDC_OUTPUT_MEMORY;
2571 } else {
2572 ccdc->output &= ~CCDC_OUTPUT_MEMORY;
2573 }
2574 break;
2575
2576 case CCDC_PAD_SOURCE_OF | 2 << 16:
2577
2578 if (flags & MEDIA_LNK_FL_ENABLED) {
2579 if (ccdc->output & ~CCDC_OUTPUT_RESIZER)
2580 return -EBUSY;
2581 ccdc->output |= CCDC_OUTPUT_RESIZER;
2582 } else {
2583 ccdc->output &= ~CCDC_OUTPUT_RESIZER;
2584 }
2585 break;
2586
2587 default:
2588 return -EINVAL;
2589 }
2590
2591 return 0;
2592}
2593
2594
2595static const struct media_entity_operations ccdc_media_ops = {
2596 .link_setup = ccdc_link_setup,
2597 .link_validate = v4l2_subdev_link_validate,
2598};
2599
2600void omap3isp_ccdc_unregister_entities(struct isp_ccdc_device *ccdc)
2601{
2602 v4l2_device_unregister_subdev(&ccdc->subdev);
2603 omap3isp_video_unregister(&ccdc->video_out);
2604}
2605
2606int omap3isp_ccdc_register_entities(struct isp_ccdc_device *ccdc,
2607 struct v4l2_device *vdev)
2608{
2609 int ret;
2610
2611
2612 ret = v4l2_device_register_subdev(vdev, &ccdc->subdev);
2613 if (ret < 0)
2614 goto error;
2615
2616 ret = omap3isp_video_register(&ccdc->video_out, vdev);
2617 if (ret < 0)
2618 goto error;
2619
2620 return 0;
2621
2622error:
2623 omap3isp_ccdc_unregister_entities(ccdc);
2624 return ret;
2625}
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637static int ccdc_init_entities(struct isp_ccdc_device *ccdc)
2638{
2639 struct v4l2_subdev *sd = &ccdc->subdev;
2640 struct media_pad *pads = ccdc->pads;
2641 struct media_entity *me = &sd->entity;
2642 int ret;
2643
2644 ccdc->input = CCDC_INPUT_NONE;
2645
2646 v4l2_subdev_init(sd, &ccdc_v4l2_ops);
2647 sd->internal_ops = &ccdc_v4l2_internal_ops;
2648 strlcpy(sd->name, "OMAP3 ISP CCDC", sizeof(sd->name));
2649 sd->grp_id = 1 << 16;
2650 v4l2_set_subdevdata(sd, ccdc);
2651 sd->flags |= V4L2_SUBDEV_FL_HAS_EVENTS | V4L2_SUBDEV_FL_HAS_DEVNODE;
2652
2653 pads[CCDC_PAD_SINK].flags = MEDIA_PAD_FL_SINK
2654 | MEDIA_PAD_FL_MUST_CONNECT;
2655 pads[CCDC_PAD_SOURCE_VP].flags = MEDIA_PAD_FL_SOURCE;
2656 pads[CCDC_PAD_SOURCE_OF].flags = MEDIA_PAD_FL_SOURCE;
2657
2658 me->ops = &ccdc_media_ops;
2659 ret = media_entity_pads_init(me, CCDC_PADS_NUM, pads);
2660 if (ret < 0)
2661 return ret;
2662
2663 ccdc_init_formats(sd, NULL);
2664
2665 ccdc->video_out.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2666 ccdc->video_out.ops = &ccdc_video_ops;
2667 ccdc->video_out.isp = to_isp_device(ccdc);
2668 ccdc->video_out.capture_mem = PAGE_ALIGN(4096 * 4096) * 3;
2669 ccdc->video_out.bpl_alignment = 32;
2670
2671 ret = omap3isp_video_init(&ccdc->video_out, "CCDC");
2672 if (ret < 0)
2673 goto error;
2674
2675 return 0;
2676
2677error:
2678 media_entity_cleanup(me);
2679 return ret;
2680}
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690int omap3isp_ccdc_init(struct isp_device *isp)
2691{
2692 struct isp_ccdc_device *ccdc = &isp->isp_ccdc;
2693 int ret;
2694
2695 spin_lock_init(&ccdc->lock);
2696 init_waitqueue_head(&ccdc->wait);
2697 mutex_init(&ccdc->ioctl_lock);
2698
2699 ccdc->stopping = CCDC_STOP_NOT_REQUESTED;
2700
2701 INIT_WORK(&ccdc->lsc.table_work, ccdc_lsc_free_table_work);
2702 ccdc->lsc.state = LSC_STATE_STOPPED;
2703 INIT_LIST_HEAD(&ccdc->lsc.free_queue);
2704 spin_lock_init(&ccdc->lsc.req_lock);
2705
2706 ccdc->clamp.oblen = 0;
2707 ccdc->clamp.dcsubval = 0;
2708
2709 ccdc->update = OMAP3ISP_CCDC_BLCLAMP;
2710 ccdc_apply_controls(ccdc);
2711
2712 ret = ccdc_init_entities(ccdc);
2713 if (ret < 0) {
2714 mutex_destroy(&ccdc->ioctl_lock);
2715 return ret;
2716 }
2717
2718 return 0;
2719}
2720
2721
2722
2723
2724
2725void omap3isp_ccdc_cleanup(struct isp_device *isp)
2726{
2727 struct isp_ccdc_device *ccdc = &isp->isp_ccdc;
2728
2729 omap3isp_video_cleanup(&ccdc->video_out);
2730 media_entity_cleanup(&ccdc->subdev.entity);
2731
2732
2733
2734
2735 ccdc_lsc_free_request(ccdc, ccdc->lsc.request);
2736 cancel_work_sync(&ccdc->lsc.table_work);
2737 ccdc_lsc_free_queue(ccdc, &ccdc->lsc.free_queue);
2738
2739 if (ccdc->fpc.addr != NULL)
2740 dma_free_coherent(isp->dev, ccdc->fpc.fpnum * 4, ccdc->fpc.addr,
2741 ccdc->fpc.dma);
2742
2743 mutex_destroy(&ccdc->ioctl_lock);
2744}
2745