This source file includes following definitions.
- ccdc_print_status
- omap3isp_ccdc_busy
- ccdc_lsc_validate_config
- ccdc_lsc_program_table
- ccdc_lsc_setup_regs
- ccdc_lsc_wait_prefetch
- __ccdc_lsc_enable
- ccdc_lsc_busy
- __ccdc_lsc_configure
- ccdc_lsc_error_handler
- ccdc_lsc_free_request
- ccdc_lsc_free_queue
- ccdc_lsc_free_table_work
- ccdc_lsc_config
- ccdc_lsc_is_configured
- ccdc_lsc_enable
- ccdc_configure_clamp
- ccdc_configure_fpc
- ccdc_configure_black_comp
- ccdc_configure_lpf
- ccdc_configure_alaw
- ccdc_config_imgattr
- ccdc_config
- ccdc_apply_controls
- omap3isp_ccdc_restore_context
- ccdc_config_vp
- ccdc_config_outlineoffset
- ccdc_set_outaddr
- omap3isp_ccdc_max_rate
- ccdc_config_sync_if
- ccdc_configure
- __ccdc_enable
- ccdc_disable
- ccdc_enable
- ccdc_sbl_busy
- ccdc_sbl_wait_idle
- ccdc_handle_stopping
- ccdc_hs_vs_isr
- ccdc_lsc_isr
- ccdc_has_all_fields
- ccdc_isr_buffer
- ccdc_vd0_isr
- ccdc_vd1_isr
- omap3isp_ccdc_isr
- ccdc_video_queue
- ccdc_ioctl
- ccdc_subscribe_event
- ccdc_unsubscribe_event
- ccdc_set_stream
- __ccdc_get_format
- __ccdc_get_crop
- ccdc_try_format
- ccdc_try_crop
- ccdc_enum_mbus_code
- ccdc_enum_frame_size
- ccdc_get_selection
- ccdc_set_selection
- ccdc_get_format
- ccdc_set_format
- ccdc_is_shiftable
- ccdc_link_validate
- ccdc_init_formats
- ccdc_link_setup
- omap3isp_ccdc_unregister_entities
- omap3isp_ccdc_register_entities
- ccdc_init_entities
- omap3isp_ccdc_init
- omap3isp_ccdc_cleanup
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14 #include <linux/module.h>
15 #include <linux/uaccess.h>
16 #include <linux/delay.h>
17 #include <linux/device.h>
18 #include <linux/dma-mapping.h>
19 #include <linux/mm.h>
20 #include <linux/sched.h>
21 #include <linux/slab.h>
22 #include <media/v4l2-event.h>
23
24 #include "isp.h"
25 #include "ispreg.h"
26 #include "ispccdc.h"
27
28 #define CCDC_MIN_WIDTH 32
29 #define CCDC_MIN_HEIGHT 32
30
31 static struct v4l2_mbus_framefmt *
32 __ccdc_get_format(struct isp_ccdc_device *ccdc, struct v4l2_subdev_pad_config *cfg,
33 unsigned int pad, enum v4l2_subdev_format_whence which);
34
35 static const unsigned int ccdc_fmts[] = {
36 MEDIA_BUS_FMT_Y8_1X8,
37 MEDIA_BUS_FMT_Y10_1X10,
38 MEDIA_BUS_FMT_Y12_1X12,
39 MEDIA_BUS_FMT_SGRBG8_1X8,
40 MEDIA_BUS_FMT_SRGGB8_1X8,
41 MEDIA_BUS_FMT_SBGGR8_1X8,
42 MEDIA_BUS_FMT_SGBRG8_1X8,
43 MEDIA_BUS_FMT_SGRBG10_1X10,
44 MEDIA_BUS_FMT_SRGGB10_1X10,
45 MEDIA_BUS_FMT_SBGGR10_1X10,
46 MEDIA_BUS_FMT_SGBRG10_1X10,
47 MEDIA_BUS_FMT_SGRBG12_1X12,
48 MEDIA_BUS_FMT_SRGGB12_1X12,
49 MEDIA_BUS_FMT_SBGGR12_1X12,
50 MEDIA_BUS_FMT_SGBRG12_1X12,
51 MEDIA_BUS_FMT_YUYV8_2X8,
52 MEDIA_BUS_FMT_UYVY8_2X8,
53 };
54
55
56
57
58
59
60
61 #define CCDC_PRINT_REGISTER(isp, name)\
62 dev_dbg(isp->dev, "###CCDC " #name "=0x%08x\n", \
63 isp_reg_readl(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_##name))
64
65 static void ccdc_print_status(struct isp_ccdc_device *ccdc)
66 {
67 struct isp_device *isp = to_isp_device(ccdc);
68
69 dev_dbg(isp->dev, "-------------CCDC Register dump-------------\n");
70
71 CCDC_PRINT_REGISTER(isp, PCR);
72 CCDC_PRINT_REGISTER(isp, SYN_MODE);
73 CCDC_PRINT_REGISTER(isp, HD_VD_WID);
74 CCDC_PRINT_REGISTER(isp, PIX_LINES);
75 CCDC_PRINT_REGISTER(isp, HORZ_INFO);
76 CCDC_PRINT_REGISTER(isp, VERT_START);
77 CCDC_PRINT_REGISTER(isp, VERT_LINES);
78 CCDC_PRINT_REGISTER(isp, CULLING);
79 CCDC_PRINT_REGISTER(isp, HSIZE_OFF);
80 CCDC_PRINT_REGISTER(isp, SDOFST);
81 CCDC_PRINT_REGISTER(isp, SDR_ADDR);
82 CCDC_PRINT_REGISTER(isp, CLAMP);
83 CCDC_PRINT_REGISTER(isp, DCSUB);
84 CCDC_PRINT_REGISTER(isp, COLPTN);
85 CCDC_PRINT_REGISTER(isp, BLKCMP);
86 CCDC_PRINT_REGISTER(isp, FPC);
87 CCDC_PRINT_REGISTER(isp, FPC_ADDR);
88 CCDC_PRINT_REGISTER(isp, VDINT);
89 CCDC_PRINT_REGISTER(isp, ALAW);
90 CCDC_PRINT_REGISTER(isp, REC656IF);
91 CCDC_PRINT_REGISTER(isp, CFG);
92 CCDC_PRINT_REGISTER(isp, FMTCFG);
93 CCDC_PRINT_REGISTER(isp, FMT_HORZ);
94 CCDC_PRINT_REGISTER(isp, FMT_VERT);
95 CCDC_PRINT_REGISTER(isp, PRGEVEN0);
96 CCDC_PRINT_REGISTER(isp, PRGEVEN1);
97 CCDC_PRINT_REGISTER(isp, PRGODD0);
98 CCDC_PRINT_REGISTER(isp, PRGODD1);
99 CCDC_PRINT_REGISTER(isp, VP_OUT);
100 CCDC_PRINT_REGISTER(isp, LSC_CONFIG);
101 CCDC_PRINT_REGISTER(isp, LSC_INITIAL);
102 CCDC_PRINT_REGISTER(isp, LSC_TABLE_BASE);
103 CCDC_PRINT_REGISTER(isp, LSC_TABLE_OFFSET);
104
105 dev_dbg(isp->dev, "--------------------------------------------\n");
106 }
107
108
109
110
111
112 int omap3isp_ccdc_busy(struct isp_ccdc_device *ccdc)
113 {
114 struct isp_device *isp = to_isp_device(ccdc);
115
116 return isp_reg_readl(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_PCR) &
117 ISPCCDC_PCR_BUSY;
118 }
119
120
121
122
123
124
125
126
127
128
129
130
131 static int ccdc_lsc_validate_config(struct isp_ccdc_device *ccdc,
132 struct omap3isp_ccdc_lsc_config *lsc_cfg)
133 {
134 struct isp_device *isp = to_isp_device(ccdc);
135 struct v4l2_mbus_framefmt *format;
136 unsigned int paxel_width, paxel_height;
137 unsigned int paxel_shift_x, paxel_shift_y;
138 unsigned int min_width, min_height, min_size;
139 unsigned int input_width, input_height;
140
141 paxel_shift_x = lsc_cfg->gain_mode_m;
142 paxel_shift_y = lsc_cfg->gain_mode_n;
143
144 if ((paxel_shift_x < 2) || (paxel_shift_x > 6) ||
145 (paxel_shift_y < 2) || (paxel_shift_y > 6)) {
146 dev_dbg(isp->dev, "CCDC: LSC: Invalid paxel size\n");
147 return -EINVAL;
148 }
149
150 if (lsc_cfg->offset & 3) {
151 dev_dbg(isp->dev,
152 "CCDC: LSC: Offset must be a multiple of 4\n");
153 return -EINVAL;
154 }
155
156 if ((lsc_cfg->initial_x & 1) || (lsc_cfg->initial_y & 1)) {
157 dev_dbg(isp->dev, "CCDC: LSC: initial_x and y must be even\n");
158 return -EINVAL;
159 }
160
161 format = __ccdc_get_format(ccdc, NULL, CCDC_PAD_SINK,
162 V4L2_SUBDEV_FORMAT_ACTIVE);
163 input_width = format->width;
164 input_height = format->height;
165
166
167 paxel_width = 1 << paxel_shift_x;
168 min_width = ((input_width + lsc_cfg->initial_x + paxel_width - 1)
169 >> paxel_shift_x) + 1;
170
171 paxel_height = 1 << paxel_shift_y;
172 min_height = ((input_height + lsc_cfg->initial_y + paxel_height - 1)
173 >> paxel_shift_y) + 1;
174
175 min_size = 4 * min_width * min_height;
176 if (min_size > lsc_cfg->size) {
177 dev_dbg(isp->dev, "CCDC: LSC: too small table\n");
178 return -EINVAL;
179 }
180 if (lsc_cfg->offset < (min_width * 4)) {
181 dev_dbg(isp->dev, "CCDC: LSC: Offset is too small\n");
182 return -EINVAL;
183 }
184 if ((lsc_cfg->size / lsc_cfg->offset) < min_height) {
185 dev_dbg(isp->dev, "CCDC: LSC: Wrong size/offset combination\n");
186 return -EINVAL;
187 }
188 return 0;
189 }
190
191
192
193
194
195 static void ccdc_lsc_program_table(struct isp_ccdc_device *ccdc,
196 dma_addr_t addr)
197 {
198 isp_reg_writel(to_isp_device(ccdc), addr,
199 OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_TABLE_BASE);
200 }
201
202
203
204
205
206 static void ccdc_lsc_setup_regs(struct isp_ccdc_device *ccdc,
207 struct omap3isp_ccdc_lsc_config *cfg)
208 {
209 struct isp_device *isp = to_isp_device(ccdc);
210 int reg;
211
212 isp_reg_writel(isp, cfg->offset, OMAP3_ISP_IOMEM_CCDC,
213 ISPCCDC_LSC_TABLE_OFFSET);
214
215 reg = 0;
216 reg |= cfg->gain_mode_n << ISPCCDC_LSC_GAIN_MODE_N_SHIFT;
217 reg |= cfg->gain_mode_m << ISPCCDC_LSC_GAIN_MODE_M_SHIFT;
218 reg |= cfg->gain_format << ISPCCDC_LSC_GAIN_FORMAT_SHIFT;
219 isp_reg_writel(isp, reg, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_CONFIG);
220
221 reg = 0;
222 reg &= ~ISPCCDC_LSC_INITIAL_X_MASK;
223 reg |= cfg->initial_x << ISPCCDC_LSC_INITIAL_X_SHIFT;
224 reg &= ~ISPCCDC_LSC_INITIAL_Y_MASK;
225 reg |= cfg->initial_y << ISPCCDC_LSC_INITIAL_Y_SHIFT;
226 isp_reg_writel(isp, reg, OMAP3_ISP_IOMEM_CCDC,
227 ISPCCDC_LSC_INITIAL);
228 }
229
230 static int ccdc_lsc_wait_prefetch(struct isp_ccdc_device *ccdc)
231 {
232 struct isp_device *isp = to_isp_device(ccdc);
233 unsigned int wait;
234
235 isp_reg_writel(isp, IRQ0STATUS_CCDC_LSC_PREF_COMP_IRQ,
236 OMAP3_ISP_IOMEM_MAIN, ISP_IRQ0STATUS);
237
238
239 for (wait = 0; wait < 1000; wait++) {
240 if (isp_reg_readl(isp, OMAP3_ISP_IOMEM_MAIN, ISP_IRQ0STATUS) &
241 IRQ0STATUS_CCDC_LSC_PREF_COMP_IRQ) {
242 isp_reg_writel(isp, IRQ0STATUS_CCDC_LSC_PREF_COMP_IRQ,
243 OMAP3_ISP_IOMEM_MAIN, ISP_IRQ0STATUS);
244 return 0;
245 }
246
247 rmb();
248 udelay(1);
249 }
250
251 return -ETIMEDOUT;
252 }
253
254
255
256
257
258
259 static int __ccdc_lsc_enable(struct isp_ccdc_device *ccdc, int enable)
260 {
261 struct isp_device *isp = to_isp_device(ccdc);
262 const struct v4l2_mbus_framefmt *format =
263 __ccdc_get_format(ccdc, NULL, CCDC_PAD_SINK,
264 V4L2_SUBDEV_FORMAT_ACTIVE);
265
266 if ((format->code != MEDIA_BUS_FMT_SGRBG10_1X10) &&
267 (format->code != MEDIA_BUS_FMT_SRGGB10_1X10) &&
268 (format->code != MEDIA_BUS_FMT_SBGGR10_1X10) &&
269 (format->code != MEDIA_BUS_FMT_SGBRG10_1X10))
270 return -EINVAL;
271
272 if (enable)
273 omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_CCDC_LSC_READ);
274
275 isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_CONFIG,
276 ISPCCDC_LSC_ENABLE, enable ? ISPCCDC_LSC_ENABLE : 0);
277
278 if (enable) {
279 if (ccdc_lsc_wait_prefetch(ccdc) < 0) {
280 isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC,
281 ISPCCDC_LSC_CONFIG, ISPCCDC_LSC_ENABLE);
282 ccdc->lsc.state = LSC_STATE_STOPPED;
283 dev_warn(to_device(ccdc), "LSC prefetch timeout\n");
284 return -ETIMEDOUT;
285 }
286 ccdc->lsc.state = LSC_STATE_RUNNING;
287 } else {
288 ccdc->lsc.state = LSC_STATE_STOPPING;
289 }
290
291 return 0;
292 }
293
294 static int ccdc_lsc_busy(struct isp_ccdc_device *ccdc)
295 {
296 struct isp_device *isp = to_isp_device(ccdc);
297
298 return isp_reg_readl(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_CONFIG) &
299 ISPCCDC_LSC_BUSY;
300 }
301
302
303
304
305
306
307
308 static int __ccdc_lsc_configure(struct isp_ccdc_device *ccdc,
309 struct ispccdc_lsc_config_req *req)
310 {
311 if (!req->enable)
312 return -EINVAL;
313
314 if (ccdc_lsc_validate_config(ccdc, &req->config) < 0) {
315 dev_dbg(to_device(ccdc), "Discard LSC configuration\n");
316 return -EINVAL;
317 }
318
319 if (ccdc_lsc_busy(ccdc))
320 return -EBUSY;
321
322 ccdc_lsc_setup_regs(ccdc, &req->config);
323 ccdc_lsc_program_table(ccdc, req->table.dma);
324 return 0;
325 }
326
327
328
329
330
331
332
333 static void ccdc_lsc_error_handler(struct isp_ccdc_device *ccdc)
334 {
335 struct isp_device *isp = to_isp_device(ccdc);
336
337
338
339
340
341
342
343
344
345 isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_LSC_CONFIG,
346 ISPCCDC_LSC_ENABLE);
347 ccdc->lsc.state = LSC_STATE_STOPPED;
348 }
349
350 static void ccdc_lsc_free_request(struct isp_ccdc_device *ccdc,
351 struct ispccdc_lsc_config_req *req)
352 {
353 struct isp_device *isp = to_isp_device(ccdc);
354
355 if (req == NULL)
356 return;
357
358 if (req->table.addr) {
359 sg_free_table(&req->table.sgt);
360 dma_free_coherent(isp->dev, req->config.size, req->table.addr,
361 req->table.dma);
362 }
363
364 kfree(req);
365 }
366
367 static void ccdc_lsc_free_queue(struct isp_ccdc_device *ccdc,
368 struct list_head *queue)
369 {
370 struct ispccdc_lsc_config_req *req, *n;
371 unsigned long flags;
372
373 spin_lock_irqsave(&ccdc->lsc.req_lock, flags);
374 list_for_each_entry_safe(req, n, queue, list) {
375 list_del(&req->list);
376 spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags);
377 ccdc_lsc_free_request(ccdc, req);
378 spin_lock_irqsave(&ccdc->lsc.req_lock, flags);
379 }
380 spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags);
381 }
382
383 static void ccdc_lsc_free_table_work(struct work_struct *work)
384 {
385 struct isp_ccdc_device *ccdc;
386 struct ispccdc_lsc *lsc;
387
388 lsc = container_of(work, struct ispccdc_lsc, table_work);
389 ccdc = container_of(lsc, struct isp_ccdc_device, lsc);
390
391 ccdc_lsc_free_queue(ccdc, &lsc->free_queue);
392 }
393
394
395
396
397
398
399
400
401 static int ccdc_lsc_config(struct isp_ccdc_device *ccdc,
402 struct omap3isp_ccdc_update_config *config)
403 {
404 struct isp_device *isp = to_isp_device(ccdc);
405 struct ispccdc_lsc_config_req *req;
406 unsigned long flags;
407 u16 update;
408 int ret;
409
410 update = config->update &
411 (OMAP3ISP_CCDC_CONFIG_LSC | OMAP3ISP_CCDC_TBL_LSC);
412 if (!update)
413 return 0;
414
415 if (update != (OMAP3ISP_CCDC_CONFIG_LSC | OMAP3ISP_CCDC_TBL_LSC)) {
416 dev_dbg(to_device(ccdc),
417 "%s: Both LSC configuration and table need to be supplied\n",
418 __func__);
419 return -EINVAL;
420 }
421
422 req = kzalloc(sizeof(*req), GFP_KERNEL);
423 if (req == NULL)
424 return -ENOMEM;
425
426 if (config->flag & OMAP3ISP_CCDC_CONFIG_LSC) {
427 if (copy_from_user(&req->config, config->lsc_cfg,
428 sizeof(req->config))) {
429 ret = -EFAULT;
430 goto done;
431 }
432
433 req->enable = 1;
434
435 req->table.addr = dma_alloc_coherent(isp->dev, req->config.size,
436 &req->table.dma,
437 GFP_KERNEL);
438 if (req->table.addr == NULL) {
439 ret = -ENOMEM;
440 goto done;
441 }
442
443 ret = dma_get_sgtable(isp->dev, &req->table.sgt,
444 req->table.addr, req->table.dma,
445 req->config.size);
446 if (ret < 0)
447 goto done;
448
449 dma_sync_sg_for_cpu(isp->dev, req->table.sgt.sgl,
450 req->table.sgt.nents, DMA_TO_DEVICE);
451
452 if (copy_from_user(req->table.addr, config->lsc,
453 req->config.size)) {
454 ret = -EFAULT;
455 goto done;
456 }
457
458 dma_sync_sg_for_device(isp->dev, req->table.sgt.sgl,
459 req->table.sgt.nents, DMA_TO_DEVICE);
460 }
461
462 spin_lock_irqsave(&ccdc->lsc.req_lock, flags);
463 if (ccdc->lsc.request) {
464 list_add_tail(&ccdc->lsc.request->list, &ccdc->lsc.free_queue);
465 schedule_work(&ccdc->lsc.table_work);
466 }
467 ccdc->lsc.request = req;
468 spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags);
469
470 ret = 0;
471
472 done:
473 if (ret < 0)
474 ccdc_lsc_free_request(ccdc, req);
475
476 return ret;
477 }
478
479 static inline int ccdc_lsc_is_configured(struct isp_ccdc_device *ccdc)
480 {
481 unsigned long flags;
482 int ret;
483
484 spin_lock_irqsave(&ccdc->lsc.req_lock, flags);
485 ret = ccdc->lsc.active != NULL;
486 spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags);
487
488 return ret;
489 }
490
491 static int ccdc_lsc_enable(struct isp_ccdc_device *ccdc)
492 {
493 struct ispccdc_lsc *lsc = &ccdc->lsc;
494
495 if (lsc->state != LSC_STATE_STOPPED)
496 return -EINVAL;
497
498 if (lsc->active) {
499 list_add_tail(&lsc->active->list, &lsc->free_queue);
500 lsc->active = NULL;
501 }
502
503 if (__ccdc_lsc_configure(ccdc, lsc->request) < 0) {
504 omap3isp_sbl_disable(to_isp_device(ccdc),
505 OMAP3_ISP_SBL_CCDC_LSC_READ);
506 list_add_tail(&lsc->request->list, &lsc->free_queue);
507 lsc->request = NULL;
508 goto done;
509 }
510
511 lsc->active = lsc->request;
512 lsc->request = NULL;
513 __ccdc_lsc_enable(ccdc, 1);
514
515 done:
516 if (!list_empty(&lsc->free_queue))
517 schedule_work(&lsc->table_work);
518
519 return 0;
520 }
521
522
523
524
525
526
527
528
529
530
531
532
533 static void ccdc_configure_clamp(struct isp_ccdc_device *ccdc)
534 {
535 struct isp_device *isp = to_isp_device(ccdc);
536 u32 clamp;
537
538 if (ccdc->obclamp) {
539 clamp = ccdc->clamp.obgain << ISPCCDC_CLAMP_OBGAIN_SHIFT;
540 clamp |= ccdc->clamp.oblen << ISPCCDC_CLAMP_OBSLEN_SHIFT;
541 clamp |= ccdc->clamp.oblines << ISPCCDC_CLAMP_OBSLN_SHIFT;
542 clamp |= ccdc->clamp.obstpixel << ISPCCDC_CLAMP_OBST_SHIFT;
543 isp_reg_writel(isp, clamp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CLAMP);
544 } else {
545 isp_reg_writel(isp, ccdc->clamp.dcsubval,
546 OMAP3_ISP_IOMEM_CCDC, ISPCCDC_DCSUB);
547 }
548
549 isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CLAMP,
550 ISPCCDC_CLAMP_CLAMPEN,
551 ccdc->obclamp ? ISPCCDC_CLAMP_CLAMPEN : 0);
552 }
553
554
555
556
557
558 static void ccdc_configure_fpc(struct isp_ccdc_device *ccdc)
559 {
560 struct isp_device *isp = to_isp_device(ccdc);
561
562 isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FPC, ISPCCDC_FPC_FPCEN);
563
564 if (!ccdc->fpc_en)
565 return;
566
567 isp_reg_writel(isp, ccdc->fpc.dma, OMAP3_ISP_IOMEM_CCDC,
568 ISPCCDC_FPC_ADDR);
569
570 isp_reg_writel(isp, (ccdc->fpc.fpnum << ISPCCDC_FPC_FPNUM_SHIFT),
571 OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FPC);
572 isp_reg_writel(isp, (ccdc->fpc.fpnum << ISPCCDC_FPC_FPNUM_SHIFT) |
573 ISPCCDC_FPC_FPCEN, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FPC);
574 }
575
576
577
578
579
580 static void ccdc_configure_black_comp(struct isp_ccdc_device *ccdc)
581 {
582 struct isp_device *isp = to_isp_device(ccdc);
583 u32 blcomp;
584
585 blcomp = ccdc->blcomp.b_mg << ISPCCDC_BLKCMP_B_MG_SHIFT;
586 blcomp |= ccdc->blcomp.gb_g << ISPCCDC_BLKCMP_GB_G_SHIFT;
587 blcomp |= ccdc->blcomp.gr_cy << ISPCCDC_BLKCMP_GR_CY_SHIFT;
588 blcomp |= ccdc->blcomp.r_ye << ISPCCDC_BLKCMP_R_YE_SHIFT;
589
590 isp_reg_writel(isp, blcomp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_BLKCMP);
591 }
592
593
594
595
596
597 static void ccdc_configure_lpf(struct isp_ccdc_device *ccdc)
598 {
599 struct isp_device *isp = to_isp_device(ccdc);
600
601 isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE,
602 ISPCCDC_SYN_MODE_LPF,
603 ccdc->lpf ? ISPCCDC_SYN_MODE_LPF : 0);
604 }
605
606
607
608
609
610 static void ccdc_configure_alaw(struct isp_ccdc_device *ccdc)
611 {
612 struct isp_device *isp = to_isp_device(ccdc);
613 const struct isp_format_info *info;
614 u32 alaw = 0;
615
616 info = omap3isp_video_format_info(ccdc->formats[CCDC_PAD_SINK].code);
617
618 switch (info->width) {
619 case 8:
620 return;
621
622 case 10:
623 alaw = ISPCCDC_ALAW_GWDI_9_0;
624 break;
625 case 11:
626 alaw = ISPCCDC_ALAW_GWDI_10_1;
627 break;
628 case 12:
629 alaw = ISPCCDC_ALAW_GWDI_11_2;
630 break;
631 case 13:
632 alaw = ISPCCDC_ALAW_GWDI_12_3;
633 break;
634 }
635
636 if (ccdc->alaw)
637 alaw |= ISPCCDC_ALAW_CCDTBL;
638
639 isp_reg_writel(isp, alaw, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_ALAW);
640 }
641
642
643
644
645
646
647 static void ccdc_config_imgattr(struct isp_ccdc_device *ccdc, u32 colptn)
648 {
649 struct isp_device *isp = to_isp_device(ccdc);
650
651 isp_reg_writel(isp, colptn, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_COLPTN);
652 }
653
654
655
656
657
658
659
660
661
662
663 static int ccdc_config(struct isp_ccdc_device *ccdc,
664 struct omap3isp_ccdc_update_config *ccdc_struct)
665 {
666 struct isp_device *isp = to_isp_device(ccdc);
667 unsigned long flags;
668
669 spin_lock_irqsave(&ccdc->lock, flags);
670 ccdc->shadow_update = 1;
671 spin_unlock_irqrestore(&ccdc->lock, flags);
672
673 if (OMAP3ISP_CCDC_ALAW & ccdc_struct->update) {
674 ccdc->alaw = !!(OMAP3ISP_CCDC_ALAW & ccdc_struct->flag);
675 ccdc->update |= OMAP3ISP_CCDC_ALAW;
676 }
677
678 if (OMAP3ISP_CCDC_LPF & ccdc_struct->update) {
679 ccdc->lpf = !!(OMAP3ISP_CCDC_LPF & ccdc_struct->flag);
680 ccdc->update |= OMAP3ISP_CCDC_LPF;
681 }
682
683 if (OMAP3ISP_CCDC_BLCLAMP & ccdc_struct->update) {
684 if (copy_from_user(&ccdc->clamp, ccdc_struct->bclamp,
685 sizeof(ccdc->clamp))) {
686 ccdc->shadow_update = 0;
687 return -EFAULT;
688 }
689
690 ccdc->obclamp = !!(OMAP3ISP_CCDC_BLCLAMP & ccdc_struct->flag);
691 ccdc->update |= OMAP3ISP_CCDC_BLCLAMP;
692 }
693
694 if (OMAP3ISP_CCDC_BCOMP & ccdc_struct->update) {
695 if (copy_from_user(&ccdc->blcomp, ccdc_struct->blcomp,
696 sizeof(ccdc->blcomp))) {
697 ccdc->shadow_update = 0;
698 return -EFAULT;
699 }
700
701 ccdc->update |= OMAP3ISP_CCDC_BCOMP;
702 }
703
704 ccdc->shadow_update = 0;
705
706 if (OMAP3ISP_CCDC_FPC & ccdc_struct->update) {
707 struct omap3isp_ccdc_fpc fpc;
708 struct ispccdc_fpc fpc_old = { .addr = NULL, };
709 struct ispccdc_fpc fpc_new;
710 u32 size;
711
712 if (ccdc->state != ISP_PIPELINE_STREAM_STOPPED)
713 return -EBUSY;
714
715 ccdc->fpc_en = !!(OMAP3ISP_CCDC_FPC & ccdc_struct->flag);
716
717 if (ccdc->fpc_en) {
718 if (copy_from_user(&fpc, ccdc_struct->fpc, sizeof(fpc)))
719 return -EFAULT;
720
721 size = fpc.fpnum * 4;
722
723
724
725
726
727 fpc_new.fpnum = fpc.fpnum;
728 fpc_new.addr = dma_alloc_coherent(isp->dev, size,
729 &fpc_new.dma,
730 GFP_KERNEL);
731 if (fpc_new.addr == NULL)
732 return -ENOMEM;
733
734 if (copy_from_user(fpc_new.addr,
735 (__force void __user *)(long)fpc.fpcaddr,
736 size)) {
737 dma_free_coherent(isp->dev, size, fpc_new.addr,
738 fpc_new.dma);
739 return -EFAULT;
740 }
741
742 fpc_old = ccdc->fpc;
743 ccdc->fpc = fpc_new;
744 }
745
746 ccdc_configure_fpc(ccdc);
747
748 if (fpc_old.addr != NULL)
749 dma_free_coherent(isp->dev, fpc_old.fpnum * 4,
750 fpc_old.addr, fpc_old.dma);
751 }
752
753 return ccdc_lsc_config(ccdc, ccdc_struct);
754 }
755
756 static void ccdc_apply_controls(struct isp_ccdc_device *ccdc)
757 {
758 if (ccdc->update & OMAP3ISP_CCDC_ALAW) {
759 ccdc_configure_alaw(ccdc);
760 ccdc->update &= ~OMAP3ISP_CCDC_ALAW;
761 }
762
763 if (ccdc->update & OMAP3ISP_CCDC_LPF) {
764 ccdc_configure_lpf(ccdc);
765 ccdc->update &= ~OMAP3ISP_CCDC_LPF;
766 }
767
768 if (ccdc->update & OMAP3ISP_CCDC_BLCLAMP) {
769 ccdc_configure_clamp(ccdc);
770 ccdc->update &= ~OMAP3ISP_CCDC_BLCLAMP;
771 }
772
773 if (ccdc->update & OMAP3ISP_CCDC_BCOMP) {
774 ccdc_configure_black_comp(ccdc);
775 ccdc->update &= ~OMAP3ISP_CCDC_BCOMP;
776 }
777 }
778
779
780
781
782
783 void omap3isp_ccdc_restore_context(struct isp_device *isp)
784 {
785 struct isp_ccdc_device *ccdc = &isp->isp_ccdc;
786
787 isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG, ISPCCDC_CFG_VDLC);
788
789 ccdc->update = OMAP3ISP_CCDC_ALAW | OMAP3ISP_CCDC_LPF
790 | OMAP3ISP_CCDC_BLCLAMP | OMAP3ISP_CCDC_BCOMP;
791 ccdc_apply_controls(ccdc);
792 ccdc_configure_fpc(ccdc);
793 }
794
795
796
797
798
799
800
801
802
803 static void ccdc_config_vp(struct isp_ccdc_device *ccdc)
804 {
805 struct isp_pipeline *pipe = to_isp_pipeline(&ccdc->subdev.entity);
806 struct isp_device *isp = to_isp_device(ccdc);
807 const struct isp_format_info *info;
808 struct v4l2_mbus_framefmt *format;
809 unsigned long l3_ick = pipe->l3_ick;
810 unsigned int max_div = isp->revision == ISP_REVISION_15_0 ? 64 : 8;
811 unsigned int div = 0;
812 u32 fmtcfg = ISPCCDC_FMTCFG_VPEN;
813
814 format = &ccdc->formats[CCDC_PAD_SOURCE_VP];
815
816 if (!format->code) {
817
818
819
820 isp_reg_writel(isp, 0, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMTCFG);
821 return;
822 }
823
824 isp_reg_writel(isp, (0 << ISPCCDC_FMT_HORZ_FMTSPH_SHIFT) |
825 (format->width << ISPCCDC_FMT_HORZ_FMTLNH_SHIFT),
826 OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMT_HORZ);
827 isp_reg_writel(isp, (0 << ISPCCDC_FMT_VERT_FMTSLV_SHIFT) |
828 ((format->height + 1) << ISPCCDC_FMT_VERT_FMTLNV_SHIFT),
829 OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMT_VERT);
830
831 isp_reg_writel(isp, (format->width << ISPCCDC_VP_OUT_HORZ_NUM_SHIFT) |
832 (format->height << ISPCCDC_VP_OUT_VERT_NUM_SHIFT),
833 OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VP_OUT);
834
835 info = omap3isp_video_format_info(ccdc->formats[CCDC_PAD_SINK].code);
836
837 switch (info->width) {
838 case 8:
839 case 10:
840 fmtcfg |= ISPCCDC_FMTCFG_VPIN_9_0;
841 break;
842 case 11:
843 fmtcfg |= ISPCCDC_FMTCFG_VPIN_10_1;
844 break;
845 case 12:
846 fmtcfg |= ISPCCDC_FMTCFG_VPIN_11_2;
847 break;
848 case 13:
849 fmtcfg |= ISPCCDC_FMTCFG_VPIN_12_3;
850 break;
851 }
852
853 if (pipe->input)
854 div = DIV_ROUND_UP(l3_ick, pipe->max_rate);
855 else if (pipe->external_rate)
856 div = l3_ick / pipe->external_rate;
857
858 div = clamp(div, 2U, max_div);
859 fmtcfg |= (div - 2) << ISPCCDC_FMTCFG_VPIF_FRQ_SHIFT;
860
861 isp_reg_writel(isp, fmtcfg, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_FMTCFG);
862 }
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884 static void ccdc_config_outlineoffset(struct isp_ccdc_device *ccdc,
885 unsigned int bpl,
886 enum v4l2_field field)
887 {
888 struct isp_device *isp = to_isp_device(ccdc);
889 u32 sdofst = 0;
890
891 isp_reg_writel(isp, bpl & 0xffff, OMAP3_ISP_IOMEM_CCDC,
892 ISPCCDC_HSIZE_OFF);
893
894 switch (field) {
895 case V4L2_FIELD_INTERLACED_TB:
896 case V4L2_FIELD_INTERLACED_BT:
897
898
899
900 sdofst |= (1 << ISPCCDC_SDOFST_LOFST0_SHIFT)
901 | (1 << ISPCCDC_SDOFST_LOFST1_SHIFT)
902 | (1 << ISPCCDC_SDOFST_LOFST2_SHIFT)
903 | (1 << ISPCCDC_SDOFST_LOFST3_SHIFT);
904 break;
905
906 default:
907
908 break;
909 }
910
911 isp_reg_writel(isp, sdofst, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDOFST);
912 }
913
914
915
916
917
918
919
920
921 static void ccdc_set_outaddr(struct isp_ccdc_device *ccdc, u32 addr)
922 {
923 struct isp_device *isp = to_isp_device(ccdc);
924
925 isp_reg_writel(isp, addr, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SDR_ADDR);
926 }
927
928
929
930
931
932
933
934
935 void omap3isp_ccdc_max_rate(struct isp_ccdc_device *ccdc,
936 unsigned int *max_rate)
937 {
938 struct isp_pipeline *pipe = to_isp_pipeline(&ccdc->subdev.entity);
939 unsigned int rate;
940
941 if (pipe == NULL)
942 return;
943
944
945
946
947
948 if (ccdc->input == CCDC_INPUT_PARALLEL)
949 rate = pipe->l3_ick / 2 * 9 / 10;
950 else
951 rate = pipe->l3_ick / 2;
952
953 *max_rate = min(*max_rate, rate);
954 }
955
956
957
958
959
960
961
962 static void ccdc_config_sync_if(struct isp_ccdc_device *ccdc,
963 struct isp_parallel_cfg *parcfg,
964 unsigned int data_size)
965 {
966 struct isp_device *isp = to_isp_device(ccdc);
967 const struct v4l2_mbus_framefmt *format;
968 u32 syn_mode = ISPCCDC_SYN_MODE_VDHDEN;
969
970 format = &ccdc->formats[CCDC_PAD_SINK];
971
972 if (format->code == MEDIA_BUS_FMT_YUYV8_2X8 ||
973 format->code == MEDIA_BUS_FMT_UYVY8_2X8) {
974
975
976
977
978
979
980 if (ccdc->bt656)
981 syn_mode |= ISPCCDC_SYN_MODE_INPMOD_YCBCR8;
982 else
983 syn_mode |= ISPCCDC_SYN_MODE_INPMOD_YCBCR16;
984 }
985
986 switch (data_size) {
987 case 8:
988 syn_mode |= ISPCCDC_SYN_MODE_DATSIZ_8;
989 break;
990 case 10:
991 syn_mode |= ISPCCDC_SYN_MODE_DATSIZ_10;
992 break;
993 case 11:
994 syn_mode |= ISPCCDC_SYN_MODE_DATSIZ_11;
995 break;
996 case 12:
997 syn_mode |= ISPCCDC_SYN_MODE_DATSIZ_12;
998 break;
999 }
1000
1001 if (parcfg && parcfg->data_pol)
1002 syn_mode |= ISPCCDC_SYN_MODE_DATAPOL;
1003
1004 if (parcfg && parcfg->hs_pol)
1005 syn_mode |= ISPCCDC_SYN_MODE_HDPOL;
1006
1007
1008
1009
1010 if ((parcfg && parcfg->vs_pol) || ccdc->bt656)
1011 syn_mode |= ISPCCDC_SYN_MODE_VDPOL;
1012
1013 if (parcfg && parcfg->fld_pol)
1014 syn_mode |= ISPCCDC_SYN_MODE_FLDPOL;
1015
1016 isp_reg_writel(isp, syn_mode, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE);
1017
1018
1019
1020
1021 if (format->code == MEDIA_BUS_FMT_UYVY8_2X8)
1022 isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG,
1023 ISPCCDC_CFG_Y8POS);
1024 else
1025 isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG,
1026 ISPCCDC_CFG_Y8POS);
1027
1028
1029
1030
1031 if (ccdc->bt656)
1032 isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_REC656IF,
1033 ISPCCDC_REC656IF_R656ON | ISPCCDC_REC656IF_ECCFVH);
1034 else
1035 isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_REC656IF,
1036 ISPCCDC_REC656IF_R656ON | ISPCCDC_REC656IF_ECCFVH);
1037
1038 }
1039
1040
1041 static const u32 ccdc_sgrbg_pattern =
1042 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP0PLC0_SHIFT |
1043 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP0PLC1_SHIFT |
1044 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP0PLC2_SHIFT |
1045 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP0PLC3_SHIFT |
1046 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP1PLC0_SHIFT |
1047 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP1PLC1_SHIFT |
1048 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP1PLC2_SHIFT |
1049 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP1PLC3_SHIFT |
1050 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP2PLC0_SHIFT |
1051 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP2PLC1_SHIFT |
1052 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP2PLC2_SHIFT |
1053 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP2PLC3_SHIFT |
1054 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP3PLC0_SHIFT |
1055 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP3PLC1_SHIFT |
1056 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP3PLC2_SHIFT |
1057 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP3PLC3_SHIFT;
1058
1059 static const u32 ccdc_srggb_pattern =
1060 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP0PLC0_SHIFT |
1061 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP0PLC1_SHIFT |
1062 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP0PLC2_SHIFT |
1063 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP0PLC3_SHIFT |
1064 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP1PLC0_SHIFT |
1065 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP1PLC1_SHIFT |
1066 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP1PLC2_SHIFT |
1067 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP1PLC3_SHIFT |
1068 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP2PLC0_SHIFT |
1069 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP2PLC1_SHIFT |
1070 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP2PLC2_SHIFT |
1071 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP2PLC3_SHIFT |
1072 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP3PLC0_SHIFT |
1073 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP3PLC1_SHIFT |
1074 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP3PLC2_SHIFT |
1075 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP3PLC3_SHIFT;
1076
1077 static const u32 ccdc_sbggr_pattern =
1078 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP0PLC0_SHIFT |
1079 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP0PLC1_SHIFT |
1080 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP0PLC2_SHIFT |
1081 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP0PLC3_SHIFT |
1082 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP1PLC0_SHIFT |
1083 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP1PLC1_SHIFT |
1084 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP1PLC2_SHIFT |
1085 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP1PLC3_SHIFT |
1086 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP2PLC0_SHIFT |
1087 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP2PLC1_SHIFT |
1088 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP2PLC2_SHIFT |
1089 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP2PLC3_SHIFT |
1090 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP3PLC0_SHIFT |
1091 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP3PLC1_SHIFT |
1092 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP3PLC2_SHIFT |
1093 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP3PLC3_SHIFT;
1094
1095 static const u32 ccdc_sgbrg_pattern =
1096 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP0PLC0_SHIFT |
1097 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP0PLC1_SHIFT |
1098 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP0PLC2_SHIFT |
1099 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP0PLC3_SHIFT |
1100 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP1PLC0_SHIFT |
1101 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP1PLC1_SHIFT |
1102 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP1PLC2_SHIFT |
1103 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP1PLC3_SHIFT |
1104 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP2PLC0_SHIFT |
1105 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP2PLC1_SHIFT |
1106 ISPCCDC_COLPTN_Gb_G << ISPCCDC_COLPTN_CP2PLC2_SHIFT |
1107 ISPCCDC_COLPTN_B_Mg << ISPCCDC_COLPTN_CP2PLC3_SHIFT |
1108 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP3PLC0_SHIFT |
1109 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP3PLC1_SHIFT |
1110 ISPCCDC_COLPTN_R_Ye << ISPCCDC_COLPTN_CP3PLC2_SHIFT |
1111 ISPCCDC_COLPTN_Gr_Cy << ISPCCDC_COLPTN_CP3PLC3_SHIFT;
1112
1113 static void ccdc_configure(struct isp_ccdc_device *ccdc)
1114 {
1115 struct isp_device *isp = to_isp_device(ccdc);
1116 struct isp_parallel_cfg *parcfg = NULL;
1117 struct v4l2_subdev *sensor;
1118 struct v4l2_mbus_framefmt *format;
1119 const struct v4l2_rect *crop;
1120 const struct isp_format_info *fmt_info;
1121 struct v4l2_subdev_format fmt_src;
1122 unsigned int depth_out;
1123 unsigned int depth_in = 0;
1124 struct media_pad *pad;
1125 unsigned long flags;
1126 unsigned int bridge;
1127 unsigned int shift;
1128 unsigned int nph;
1129 unsigned int sph;
1130 u32 syn_mode;
1131 u32 ccdc_pattern;
1132
1133 ccdc->bt656 = false;
1134 ccdc->fields = 0;
1135
1136 pad = media_entity_remote_pad(&ccdc->pads[CCDC_PAD_SINK]);
1137 sensor = media_entity_to_v4l2_subdev(pad->entity);
1138 if (ccdc->input == CCDC_INPUT_PARALLEL) {
1139 struct v4l2_subdev *sd =
1140 to_isp_pipeline(&ccdc->subdev.entity)->external;
1141
1142 parcfg = &v4l2_subdev_to_bus_cfg(sd)->bus.parallel;
1143 ccdc->bt656 = parcfg->bt656;
1144 }
1145
1146
1147 format = &ccdc->formats[CCDC_PAD_SINK];
1148
1149
1150
1151
1152 fmt_src.pad = pad->index;
1153 fmt_src.which = V4L2_SUBDEV_FORMAT_ACTIVE;
1154 if (!v4l2_subdev_call(sensor, pad, get_fmt, NULL, &fmt_src)) {
1155 fmt_info = omap3isp_video_format_info(fmt_src.format.code);
1156 depth_in = fmt_info->width;
1157 }
1158
1159 fmt_info = omap3isp_video_format_info(format->code);
1160 depth_out = fmt_info->width;
1161 shift = depth_in - depth_out;
1162
1163 if (ccdc->bt656)
1164 bridge = ISPCTRL_PAR_BRIDGE_DISABLE;
1165 else if (fmt_info->code == MEDIA_BUS_FMT_YUYV8_2X8)
1166 bridge = ISPCTRL_PAR_BRIDGE_LENDIAN;
1167 else if (fmt_info->code == MEDIA_BUS_FMT_UYVY8_2X8)
1168 bridge = ISPCTRL_PAR_BRIDGE_BENDIAN;
1169 else
1170 bridge = ISPCTRL_PAR_BRIDGE_DISABLE;
1171
1172 omap3isp_configure_bridge(isp, ccdc->input, parcfg, shift, bridge);
1173
1174
1175 ccdc_config_sync_if(ccdc, parcfg, depth_out);
1176
1177 syn_mode = isp_reg_readl(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE);
1178
1179
1180
1181
1182 syn_mode &= ~ISPCCDC_SYN_MODE_VP2SDR;
1183
1184 if (ccdc->output & CCDC_OUTPUT_MEMORY)
1185 syn_mode |= ISPCCDC_SYN_MODE_WEN;
1186 else
1187 syn_mode &= ~ISPCCDC_SYN_MODE_WEN;
1188
1189 if (ccdc->output & CCDC_OUTPUT_RESIZER)
1190 syn_mode |= ISPCCDC_SYN_MODE_SDR2RSZ;
1191 else
1192 syn_mode &= ~ISPCCDC_SYN_MODE_SDR2RSZ;
1193
1194
1195 switch (format->code) {
1196 case MEDIA_BUS_FMT_SRGGB10_1X10:
1197 case MEDIA_BUS_FMT_SRGGB12_1X12:
1198 ccdc_pattern = ccdc_srggb_pattern;
1199 break;
1200 case MEDIA_BUS_FMT_SBGGR10_1X10:
1201 case MEDIA_BUS_FMT_SBGGR12_1X12:
1202 ccdc_pattern = ccdc_sbggr_pattern;
1203 break;
1204 case MEDIA_BUS_FMT_SGBRG10_1X10:
1205 case MEDIA_BUS_FMT_SGBRG12_1X12:
1206 ccdc_pattern = ccdc_sgbrg_pattern;
1207 break;
1208 default:
1209
1210 ccdc_pattern = ccdc_sgrbg_pattern;
1211 break;
1212 }
1213 ccdc_config_imgattr(ccdc, ccdc_pattern);
1214
1215
1216
1217
1218 isp_reg_writel(isp, ((format->height - 2) << ISPCCDC_VDINT_0_SHIFT) |
1219 ((format->height * 2 / 3) << ISPCCDC_VDINT_1_SHIFT),
1220 OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VDINT);
1221
1222
1223 format = &ccdc->formats[CCDC_PAD_SOURCE_OF];
1224 crop = &ccdc->crop;
1225
1226
1227
1228
1229
1230
1231 if (ccdc->bt656) {
1232 sph = crop->left * 2;
1233 nph = crop->width * 2 - 1;
1234 } else {
1235 sph = crop->left;
1236 nph = crop->width - 1;
1237 }
1238
1239 isp_reg_writel(isp, (sph << ISPCCDC_HORZ_INFO_SPH_SHIFT) |
1240 (nph << ISPCCDC_HORZ_INFO_NPH_SHIFT),
1241 OMAP3_ISP_IOMEM_CCDC, ISPCCDC_HORZ_INFO);
1242 isp_reg_writel(isp, (crop->top << ISPCCDC_VERT_START_SLV0_SHIFT) |
1243 (crop->top << ISPCCDC_VERT_START_SLV1_SHIFT),
1244 OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VERT_START);
1245 isp_reg_writel(isp, (crop->height - 1)
1246 << ISPCCDC_VERT_LINES_NLV_SHIFT,
1247 OMAP3_ISP_IOMEM_CCDC, ISPCCDC_VERT_LINES);
1248
1249 ccdc_config_outlineoffset(ccdc, ccdc->video_out.bpl_value,
1250 format->field);
1251
1252
1253
1254
1255
1256 if (ccdc->formats[CCDC_PAD_SINK].field == V4L2_FIELD_ALTERNATE &&
1257 (format->field == V4L2_FIELD_INTERLACED_TB ||
1258 format->field == V4L2_FIELD_INTERLACED_BT))
1259 syn_mode |= ISPCCDC_SYN_MODE_FLDMODE;
1260
1261
1262
1263
1264 if (format->code == MEDIA_BUS_FMT_YUYV8_1X16)
1265 isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG,
1266 ISPCCDC_CFG_BSWD);
1267 else
1268 isp_reg_clr(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG,
1269 ISPCCDC_CFG_BSWD);
1270
1271
1272
1273
1274
1275 if (omap3isp_video_format_info(format->code)->width <= 8 || ccdc->bt656)
1276 syn_mode |= ISPCCDC_SYN_MODE_PACK8;
1277 else
1278 syn_mode &= ~ISPCCDC_SYN_MODE_PACK8;
1279
1280 isp_reg_writel(isp, syn_mode, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE);
1281
1282
1283 ccdc_config_vp(ccdc);
1284
1285
1286 spin_lock_irqsave(&ccdc->lsc.req_lock, flags);
1287 if (ccdc->lsc.request == NULL)
1288 goto unlock;
1289
1290 WARN_ON(ccdc->lsc.active);
1291
1292
1293
1294
1295 if (ccdc->lsc.active == NULL &&
1296 __ccdc_lsc_configure(ccdc, ccdc->lsc.request) == 0) {
1297 ccdc->lsc.active = ccdc->lsc.request;
1298 } else {
1299 list_add_tail(&ccdc->lsc.request->list, &ccdc->lsc.free_queue);
1300 schedule_work(&ccdc->lsc.table_work);
1301 }
1302
1303 ccdc->lsc.request = NULL;
1304
1305 unlock:
1306 spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags);
1307
1308 ccdc_apply_controls(ccdc);
1309 }
1310
1311 static void __ccdc_enable(struct isp_ccdc_device *ccdc, int enable)
1312 {
1313 struct isp_device *isp = to_isp_device(ccdc);
1314
1315 isp_reg_clr_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_PCR,
1316 ISPCCDC_PCR_EN, enable ? ISPCCDC_PCR_EN : 0);
1317
1318 ccdc->running = enable;
1319 }
1320
1321 static int ccdc_disable(struct isp_ccdc_device *ccdc)
1322 {
1323 unsigned long flags;
1324 int ret = 0;
1325
1326 spin_lock_irqsave(&ccdc->lock, flags);
1327 if (ccdc->state == ISP_PIPELINE_STREAM_CONTINUOUS)
1328 ccdc->stopping = CCDC_STOP_REQUEST;
1329 if (!ccdc->running)
1330 ccdc->stopping = CCDC_STOP_FINISHED;
1331 spin_unlock_irqrestore(&ccdc->lock, flags);
1332
1333 ret = wait_event_timeout(ccdc->wait,
1334 ccdc->stopping == CCDC_STOP_FINISHED,
1335 msecs_to_jiffies(2000));
1336 if (ret == 0) {
1337 ret = -ETIMEDOUT;
1338 dev_warn(to_device(ccdc), "CCDC stop timeout!\n");
1339 }
1340
1341 omap3isp_sbl_disable(to_isp_device(ccdc), OMAP3_ISP_SBL_CCDC_LSC_READ);
1342
1343 mutex_lock(&ccdc->ioctl_lock);
1344 ccdc_lsc_free_request(ccdc, ccdc->lsc.request);
1345 ccdc->lsc.request = ccdc->lsc.active;
1346 ccdc->lsc.active = NULL;
1347 cancel_work_sync(&ccdc->lsc.table_work);
1348 ccdc_lsc_free_queue(ccdc, &ccdc->lsc.free_queue);
1349 mutex_unlock(&ccdc->ioctl_lock);
1350
1351 ccdc->stopping = CCDC_STOP_NOT_REQUESTED;
1352
1353 return ret > 0 ? 0 : ret;
1354 }
1355
1356 static void ccdc_enable(struct isp_ccdc_device *ccdc)
1357 {
1358 if (ccdc_lsc_is_configured(ccdc))
1359 __ccdc_lsc_enable(ccdc, 1);
1360 __ccdc_enable(ccdc, 1);
1361 }
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374 static int ccdc_sbl_busy(struct isp_ccdc_device *ccdc)
1375 {
1376 struct isp_device *isp = to_isp_device(ccdc);
1377
1378 return omap3isp_ccdc_busy(ccdc)
1379 | (isp_reg_readl(isp, OMAP3_ISP_IOMEM_SBL, ISPSBL_CCDC_WR_0) &
1380 ISPSBL_CCDC_WR_0_DATA_READY)
1381 | (isp_reg_readl(isp, OMAP3_ISP_IOMEM_SBL, ISPSBL_CCDC_WR_1) &
1382 ISPSBL_CCDC_WR_0_DATA_READY)
1383 | (isp_reg_readl(isp, OMAP3_ISP_IOMEM_SBL, ISPSBL_CCDC_WR_2) &
1384 ISPSBL_CCDC_WR_0_DATA_READY)
1385 | (isp_reg_readl(isp, OMAP3_ISP_IOMEM_SBL, ISPSBL_CCDC_WR_3) &
1386 ISPSBL_CCDC_WR_0_DATA_READY);
1387 }
1388
1389
1390
1391
1392
1393
1394 static int ccdc_sbl_wait_idle(struct isp_ccdc_device *ccdc,
1395 unsigned int max_wait)
1396 {
1397 unsigned int wait = 0;
1398
1399 if (max_wait == 0)
1400 max_wait = 10000;
1401
1402 for (wait = 0; wait <= max_wait; wait++) {
1403 if (!ccdc_sbl_busy(ccdc))
1404 return 0;
1405
1406 rmb();
1407 udelay(1);
1408 }
1409
1410 return -EBUSY;
1411 }
1412
1413
1414
1415
1416
1417
1418
1419
1420 static int ccdc_handle_stopping(struct isp_ccdc_device *ccdc, u32 event)
1421 {
1422 int rval = 0;
1423
1424 switch ((ccdc->stopping & 3) | event) {
1425 case CCDC_STOP_REQUEST | CCDC_EVENT_VD1:
1426 if (ccdc->lsc.state != LSC_STATE_STOPPED)
1427 __ccdc_lsc_enable(ccdc, 0);
1428 __ccdc_enable(ccdc, 0);
1429 ccdc->stopping = CCDC_STOP_EXECUTED;
1430 return 1;
1431
1432 case CCDC_STOP_EXECUTED | CCDC_EVENT_VD0:
1433 ccdc->stopping |= CCDC_STOP_CCDC_FINISHED;
1434 if (ccdc->lsc.state == LSC_STATE_STOPPED)
1435 ccdc->stopping |= CCDC_STOP_LSC_FINISHED;
1436 rval = 1;
1437 break;
1438
1439 case CCDC_STOP_EXECUTED | CCDC_EVENT_LSC_DONE:
1440 ccdc->stopping |= CCDC_STOP_LSC_FINISHED;
1441 rval = 1;
1442 break;
1443
1444 case CCDC_STOP_EXECUTED | CCDC_EVENT_VD1:
1445 return 1;
1446 }
1447
1448 if (ccdc->stopping == CCDC_STOP_FINISHED) {
1449 wake_up(&ccdc->wait);
1450 rval = 1;
1451 }
1452
1453 return rval;
1454 }
1455
1456 static void ccdc_hs_vs_isr(struct isp_ccdc_device *ccdc)
1457 {
1458 struct isp_pipeline *pipe = to_isp_pipeline(&ccdc->subdev.entity);
1459 struct video_device *vdev = ccdc->subdev.devnode;
1460 struct v4l2_event event;
1461
1462
1463 atomic_inc(&pipe->frame_number);
1464
1465 memset(&event, 0, sizeof(event));
1466 event.type = V4L2_EVENT_FRAME_SYNC;
1467 event.u.frame_sync.frame_sequence = atomic_read(&pipe->frame_number);
1468
1469 v4l2_event_queue(vdev, &event);
1470 }
1471
1472
1473
1474
1475
1476
1477 static void ccdc_lsc_isr(struct isp_ccdc_device *ccdc, u32 events)
1478 {
1479 unsigned long flags;
1480
1481 if (events & IRQ0STATUS_CCDC_LSC_PREF_ERR_IRQ) {
1482 struct isp_pipeline *pipe =
1483 to_isp_pipeline(&ccdc->subdev.entity);
1484
1485 ccdc_lsc_error_handler(ccdc);
1486 pipe->error = true;
1487 dev_dbg(to_device(ccdc), "lsc prefetch error\n");
1488 }
1489
1490 if (!(events & IRQ0STATUS_CCDC_LSC_DONE_IRQ))
1491 return;
1492
1493
1494
1495
1496
1497 spin_lock_irqsave(&ccdc->lsc.req_lock, flags);
1498
1499 if (ccdc->lsc.state == LSC_STATE_STOPPING)
1500 ccdc->lsc.state = LSC_STATE_STOPPED;
1501
1502 if (ccdc_handle_stopping(ccdc, CCDC_EVENT_LSC_DONE))
1503 goto done;
1504
1505 if (ccdc->lsc.state != LSC_STATE_RECONFIG)
1506 goto done;
1507
1508
1509 ccdc->lsc.state = LSC_STATE_STOPPED;
1510
1511
1512
1513
1514
1515 if (events & IRQ0STATUS_HS_VS_IRQ)
1516 goto done;
1517
1518
1519
1520
1521 if (ccdc->lsc.request == NULL)
1522 goto done;
1523
1524 ccdc_lsc_enable(ccdc);
1525
1526 done:
1527 spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags);
1528 }
1529
1530
1531
1532
1533
1534 static bool ccdc_has_all_fields(struct isp_ccdc_device *ccdc)
1535 {
1536 struct isp_pipeline *pipe = to_isp_pipeline(&ccdc->subdev.entity);
1537 struct isp_device *isp = to_isp_device(ccdc);
1538 enum v4l2_field of_field = ccdc->formats[CCDC_PAD_SOURCE_OF].field;
1539 enum v4l2_field field;
1540
1541
1542 if (of_field == V4L2_FIELD_NONE)
1543 return true;
1544
1545
1546 field = isp_reg_readl(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_SYN_MODE)
1547 & ISPCCDC_SYN_MODE_FLDSTAT
1548 ? V4L2_FIELD_BOTTOM : V4L2_FIELD_TOP;
1549
1550
1551
1552
1553 if (of_field == V4L2_FIELD_ALTERNATE) {
1554 pipe->field = field;
1555 return true;
1556 }
1557
1558
1559 ccdc->fields |= field == V4L2_FIELD_BOTTOM
1560 ? CCDC_FIELD_BOTTOM : CCDC_FIELD_TOP;
1561
1562 if (ccdc->fields != CCDC_FIELD_BOTH)
1563 return false;
1564
1565
1566
1567
1568 if ((of_field == V4L2_FIELD_INTERLACED_TB && field == V4L2_FIELD_TOP) ||
1569 (of_field == V4L2_FIELD_INTERLACED_BT && field == V4L2_FIELD_BOTTOM))
1570 return false;
1571
1572
1573 ccdc->fields = 0;
1574
1575 return true;
1576 }
1577
1578 static int ccdc_isr_buffer(struct isp_ccdc_device *ccdc)
1579 {
1580 struct isp_pipeline *pipe = to_isp_pipeline(&ccdc->subdev.entity);
1581 struct isp_device *isp = to_isp_device(ccdc);
1582 struct isp_buffer *buffer;
1583
1584
1585
1586
1587
1588
1589
1590 if (list_empty(&ccdc->video_out.dmaqueue))
1591 return 0;
1592
1593
1594
1595
1596
1597 if (ccdc->state == ISP_PIPELINE_STREAM_CONTINUOUS && ccdc->underrun) {
1598 ccdc->underrun = 0;
1599 return 1;
1600 }
1601
1602
1603 if (ccdc_sbl_wait_idle(ccdc, 1000)) {
1604 dev_info(isp->dev, "CCDC won't become idle!\n");
1605 media_entity_enum_set(&isp->crashed, &ccdc->subdev.entity);
1606 omap3isp_pipeline_cancel_stream(pipe);
1607 return 0;
1608 }
1609
1610 if (!ccdc_has_all_fields(ccdc))
1611 return 1;
1612
1613 buffer = omap3isp_video_buffer_next(&ccdc->video_out);
1614 if (buffer != NULL)
1615 ccdc_set_outaddr(ccdc, buffer->dma);
1616
1617 pipe->state |= ISP_PIPELINE_IDLE_OUTPUT;
1618
1619 if (ccdc->state == ISP_PIPELINE_STREAM_SINGLESHOT &&
1620 isp_pipeline_ready(pipe))
1621 omap3isp_pipeline_set_stream(pipe,
1622 ISP_PIPELINE_STREAM_SINGLESHOT);
1623
1624 return buffer != NULL;
1625 }
1626
1627
1628
1629
1630
1631
1632
1633 static void ccdc_vd0_isr(struct isp_ccdc_device *ccdc)
1634 {
1635 unsigned long flags;
1636 int restart = 0;
1637
1638
1639
1640
1641 if (ccdc->bt656) {
1642 struct isp_pipeline *pipe =
1643 to_isp_pipeline(&ccdc->subdev.entity);
1644
1645 atomic_inc(&pipe->frame_number);
1646 }
1647
1648
1649
1650
1651
1652 if (ccdc->bt656) {
1653 spin_lock_irqsave(&ccdc->lock, flags);
1654 if (ccdc->state == ISP_PIPELINE_STREAM_CONTINUOUS &&
1655 ccdc->output & CCDC_OUTPUT_MEMORY) {
1656 if (ccdc->lsc.state != LSC_STATE_STOPPED)
1657 __ccdc_lsc_enable(ccdc, 0);
1658 __ccdc_enable(ccdc, 0);
1659 }
1660 ccdc_handle_stopping(ccdc, CCDC_EVENT_VD1);
1661 spin_unlock_irqrestore(&ccdc->lock, flags);
1662 }
1663
1664 if (ccdc->output & CCDC_OUTPUT_MEMORY)
1665 restart = ccdc_isr_buffer(ccdc);
1666
1667 spin_lock_irqsave(&ccdc->lock, flags);
1668
1669 if (ccdc_handle_stopping(ccdc, CCDC_EVENT_VD0)) {
1670 spin_unlock_irqrestore(&ccdc->lock, flags);
1671 return;
1672 }
1673
1674 if (!ccdc->shadow_update)
1675 ccdc_apply_controls(ccdc);
1676 spin_unlock_irqrestore(&ccdc->lock, flags);
1677
1678 if (restart)
1679 ccdc_enable(ccdc);
1680 }
1681
1682
1683
1684
1685
1686 static void ccdc_vd1_isr(struct isp_ccdc_device *ccdc)
1687 {
1688 unsigned long flags;
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699 if (ccdc->bt656)
1700 return;
1701
1702 spin_lock_irqsave(&ccdc->lsc.req_lock, flags);
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714 switch (ccdc->state) {
1715 case ISP_PIPELINE_STREAM_SINGLESHOT:
1716 ccdc->stopping = CCDC_STOP_REQUEST;
1717 break;
1718
1719 case ISP_PIPELINE_STREAM_CONTINUOUS:
1720 if (ccdc->output & CCDC_OUTPUT_MEMORY) {
1721 if (ccdc->lsc.state != LSC_STATE_STOPPED)
1722 __ccdc_lsc_enable(ccdc, 0);
1723 __ccdc_enable(ccdc, 0);
1724 }
1725 break;
1726
1727 case ISP_PIPELINE_STREAM_STOPPED:
1728 break;
1729 }
1730
1731 if (ccdc_handle_stopping(ccdc, CCDC_EVENT_VD1))
1732 goto done;
1733
1734 if (ccdc->lsc.request == NULL)
1735 goto done;
1736
1737
1738
1739
1740
1741 if (ccdc->lsc.state == LSC_STATE_RUNNING) {
1742 __ccdc_lsc_enable(ccdc, 0);
1743 ccdc->lsc.state = LSC_STATE_RECONFIG;
1744 goto done;
1745 }
1746
1747
1748 if (ccdc->lsc.state == LSC_STATE_STOPPED)
1749 ccdc_lsc_enable(ccdc);
1750
1751 done:
1752 spin_unlock_irqrestore(&ccdc->lsc.req_lock, flags);
1753 }
1754
1755
1756
1757
1758
1759
1760 int omap3isp_ccdc_isr(struct isp_ccdc_device *ccdc, u32 events)
1761 {
1762 if (ccdc->state == ISP_PIPELINE_STREAM_STOPPED)
1763 return 0;
1764
1765 if (events & IRQ0STATUS_CCDC_VD1_IRQ)
1766 ccdc_vd1_isr(ccdc);
1767
1768 ccdc_lsc_isr(ccdc, events);
1769
1770 if (events & IRQ0STATUS_CCDC_VD0_IRQ)
1771 ccdc_vd0_isr(ccdc);
1772
1773 if (events & IRQ0STATUS_HS_VS_IRQ)
1774 ccdc_hs_vs_isr(ccdc);
1775
1776 return 0;
1777 }
1778
1779
1780
1781
1782
1783 static int ccdc_video_queue(struct isp_video *video, struct isp_buffer *buffer)
1784 {
1785 struct isp_ccdc_device *ccdc = &video->isp->isp_ccdc;
1786 unsigned long flags;
1787 bool restart = false;
1788
1789 if (!(ccdc->output & CCDC_OUTPUT_MEMORY))
1790 return -ENODEV;
1791
1792 ccdc_set_outaddr(ccdc, buffer->dma);
1793
1794
1795
1796
1797
1798
1799
1800 spin_lock_irqsave(&ccdc->lock, flags);
1801 if (ccdc->state == ISP_PIPELINE_STREAM_CONTINUOUS && !ccdc->running &&
1802 ccdc->bt656)
1803 restart = true;
1804 else
1805 ccdc->underrun = 1;
1806 spin_unlock_irqrestore(&ccdc->lock, flags);
1807
1808 if (restart)
1809 ccdc_enable(ccdc);
1810
1811 return 0;
1812 }
1813
1814 static const struct isp_video_operations ccdc_video_ops = {
1815 .queue = ccdc_video_queue,
1816 };
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830 static long ccdc_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
1831 {
1832 struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
1833 int ret;
1834
1835 switch (cmd) {
1836 case VIDIOC_OMAP3ISP_CCDC_CFG:
1837 mutex_lock(&ccdc->ioctl_lock);
1838 ret = ccdc_config(ccdc, arg);
1839 mutex_unlock(&ccdc->ioctl_lock);
1840 break;
1841
1842 default:
1843 return -ENOIOCTLCMD;
1844 }
1845
1846 return ret;
1847 }
1848
1849 static int ccdc_subscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
1850 struct v4l2_event_subscription *sub)
1851 {
1852 if (sub->type != V4L2_EVENT_FRAME_SYNC)
1853 return -EINVAL;
1854
1855
1856 if (sub->id != 0)
1857 return -EINVAL;
1858
1859 return v4l2_event_subscribe(fh, sub, OMAP3ISP_CCDC_NEVENTS, NULL);
1860 }
1861
1862 static int ccdc_unsubscribe_event(struct v4l2_subdev *sd, struct v4l2_fh *fh,
1863 struct v4l2_event_subscription *sub)
1864 {
1865 return v4l2_event_unsubscribe(fh, sub);
1866 }
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880 static int ccdc_set_stream(struct v4l2_subdev *sd, int enable)
1881 {
1882 struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
1883 struct isp_device *isp = to_isp_device(ccdc);
1884 int ret = 0;
1885
1886 if (ccdc->state == ISP_PIPELINE_STREAM_STOPPED) {
1887 if (enable == ISP_PIPELINE_STREAM_STOPPED)
1888 return 0;
1889
1890 omap3isp_subclk_enable(isp, OMAP3_ISP_SUBCLK_CCDC);
1891 isp_reg_set(isp, OMAP3_ISP_IOMEM_CCDC, ISPCCDC_CFG,
1892 ISPCCDC_CFG_VDLC);
1893
1894 ccdc_configure(ccdc);
1895
1896 ccdc_print_status(ccdc);
1897 }
1898
1899 switch (enable) {
1900 case ISP_PIPELINE_STREAM_CONTINUOUS:
1901 if (ccdc->output & CCDC_OUTPUT_MEMORY)
1902 omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_CCDC_WRITE);
1903
1904 if (ccdc->underrun || !(ccdc->output & CCDC_OUTPUT_MEMORY))
1905 ccdc_enable(ccdc);
1906
1907 ccdc->underrun = 0;
1908 break;
1909
1910 case ISP_PIPELINE_STREAM_SINGLESHOT:
1911 if (ccdc->output & CCDC_OUTPUT_MEMORY &&
1912 ccdc->state != ISP_PIPELINE_STREAM_SINGLESHOT)
1913 omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_CCDC_WRITE);
1914
1915 ccdc_enable(ccdc);
1916 break;
1917
1918 case ISP_PIPELINE_STREAM_STOPPED:
1919 ret = ccdc_disable(ccdc);
1920 if (ccdc->output & CCDC_OUTPUT_MEMORY)
1921 omap3isp_sbl_disable(isp, OMAP3_ISP_SBL_CCDC_WRITE);
1922 omap3isp_subclk_disable(isp, OMAP3_ISP_SUBCLK_CCDC);
1923 ccdc->underrun = 0;
1924 break;
1925 }
1926
1927 ccdc->state = enable;
1928 return ret;
1929 }
1930
1931 static struct v4l2_mbus_framefmt *
1932 __ccdc_get_format(struct isp_ccdc_device *ccdc, struct v4l2_subdev_pad_config *cfg,
1933 unsigned int pad, enum v4l2_subdev_format_whence which)
1934 {
1935 if (which == V4L2_SUBDEV_FORMAT_TRY)
1936 return v4l2_subdev_get_try_format(&ccdc->subdev, cfg, pad);
1937 else
1938 return &ccdc->formats[pad];
1939 }
1940
1941 static struct v4l2_rect *
1942 __ccdc_get_crop(struct isp_ccdc_device *ccdc, struct v4l2_subdev_pad_config *cfg,
1943 enum v4l2_subdev_format_whence which)
1944 {
1945 if (which == V4L2_SUBDEV_FORMAT_TRY)
1946 return v4l2_subdev_get_try_crop(&ccdc->subdev, cfg, CCDC_PAD_SOURCE_OF);
1947 else
1948 return &ccdc->crop;
1949 }
1950
1951
1952
1953
1954
1955
1956
1957
1958 static void
1959 ccdc_try_format(struct isp_ccdc_device *ccdc, struct v4l2_subdev_pad_config *cfg,
1960 unsigned int pad, struct v4l2_mbus_framefmt *fmt,
1961 enum v4l2_subdev_format_whence which)
1962 {
1963 const struct isp_format_info *info;
1964 u32 pixelcode;
1965 unsigned int width = fmt->width;
1966 unsigned int height = fmt->height;
1967 struct v4l2_rect *crop;
1968 enum v4l2_field field;
1969 unsigned int i;
1970
1971 switch (pad) {
1972 case CCDC_PAD_SINK:
1973 for (i = 0; i < ARRAY_SIZE(ccdc_fmts); i++) {
1974 if (fmt->code == ccdc_fmts[i])
1975 break;
1976 }
1977
1978
1979 if (i >= ARRAY_SIZE(ccdc_fmts))
1980 fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
1981
1982
1983 fmt->width = clamp_t(u32, width, 32, 4096);
1984 fmt->height = clamp_t(u32, height, 32, 4096);
1985
1986
1987 if (fmt->field == V4L2_FIELD_ANY)
1988 fmt->field = V4L2_FIELD_NONE;
1989
1990 break;
1991
1992 case CCDC_PAD_SOURCE_OF:
1993 pixelcode = fmt->code;
1994 field = fmt->field;
1995 *fmt = *__ccdc_get_format(ccdc, cfg, CCDC_PAD_SINK, which);
1996
1997
1998
1999
2000
2001
2002
2003
2004 if (fmt->code == MEDIA_BUS_FMT_YUYV8_2X8 ||
2005 fmt->code == MEDIA_BUS_FMT_UYVY8_2X8) {
2006
2007 if (pixelcode == MEDIA_BUS_FMT_YUYV8_2X8 ||
2008 pixelcode == MEDIA_BUS_FMT_UYVY8_2X8 ||
2009 pixelcode == MEDIA_BUS_FMT_YUYV8_1X16 ||
2010 pixelcode == MEDIA_BUS_FMT_UYVY8_1X16)
2011 fmt->code = pixelcode;
2012
2013 if (fmt->code == MEDIA_BUS_FMT_YUYV8_2X8)
2014 fmt->code = MEDIA_BUS_FMT_YUYV8_1X16;
2015 else if (fmt->code == MEDIA_BUS_FMT_UYVY8_2X8)
2016 fmt->code = MEDIA_BUS_FMT_UYVY8_1X16;
2017 }
2018
2019
2020 crop = __ccdc_get_crop(ccdc, cfg, which);
2021 fmt->width = crop->width;
2022 fmt->height = crop->height;
2023
2024
2025
2026
2027 if (fmt->field == V4L2_FIELD_ALTERNATE &&
2028 (field == V4L2_FIELD_INTERLACED_TB ||
2029 field == V4L2_FIELD_INTERLACED_BT)) {
2030 fmt->field = field;
2031 fmt->height *= 2;
2032 }
2033
2034 break;
2035
2036 case CCDC_PAD_SOURCE_VP:
2037 *fmt = *__ccdc_get_format(ccdc, cfg, CCDC_PAD_SINK, which);
2038
2039
2040 info = omap3isp_video_format_info(fmt->code);
2041 fmt->code = info->truncated;
2042
2043
2044 if (fmt->code == MEDIA_BUS_FMT_YUYV8_2X8 ||
2045 fmt->code == MEDIA_BUS_FMT_UYVY8_2X8)
2046 fmt->code = 0;
2047
2048
2049
2050
2051
2052 fmt->width = clamp_t(u32, width, 32, fmt->width);
2053 fmt->height = clamp_t(u32, height, 32, fmt->height - 1);
2054 break;
2055 }
2056
2057
2058
2059
2060 fmt->colorspace = V4L2_COLORSPACE_SRGB;
2061 }
2062
2063
2064
2065
2066
2067
2068
2069 static void ccdc_try_crop(struct isp_ccdc_device *ccdc,
2070 const struct v4l2_mbus_framefmt *sink,
2071 struct v4l2_rect *crop)
2072 {
2073 const struct isp_format_info *info;
2074 unsigned int max_width;
2075
2076
2077
2078
2079 info = omap3isp_video_format_info(sink->code);
2080 if (info->flavor != MEDIA_BUS_FMT_Y8_1X8) {
2081 crop->left &= ~1;
2082 crop->top &= ~1;
2083 }
2084
2085 crop->left = clamp_t(u32, crop->left, 0, sink->width - CCDC_MIN_WIDTH);
2086 crop->top = clamp_t(u32, crop->top, 0, sink->height - CCDC_MIN_HEIGHT);
2087
2088
2089
2090
2091
2092
2093 max_width = (sink->width - crop->left + 15) & ~15;
2094 crop->width = clamp_t(u32, crop->width, CCDC_MIN_WIDTH, max_width)
2095 & ~15;
2096 crop->height = clamp_t(u32, crop->height, CCDC_MIN_HEIGHT,
2097 sink->height - crop->top);
2098
2099
2100 if (info->flavor != MEDIA_BUS_FMT_Y8_1X8) {
2101 crop->width &= ~1;
2102 crop->height &= ~1;
2103 }
2104 }
2105
2106
2107
2108
2109
2110
2111
2112
2113 static int ccdc_enum_mbus_code(struct v4l2_subdev *sd,
2114 struct v4l2_subdev_pad_config *cfg,
2115 struct v4l2_subdev_mbus_code_enum *code)
2116 {
2117 struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
2118 struct v4l2_mbus_framefmt *format;
2119
2120 switch (code->pad) {
2121 case CCDC_PAD_SINK:
2122 if (code->index >= ARRAY_SIZE(ccdc_fmts))
2123 return -EINVAL;
2124
2125 code->code = ccdc_fmts[code->index];
2126 break;
2127
2128 case CCDC_PAD_SOURCE_OF:
2129 format = __ccdc_get_format(ccdc, cfg, code->pad,
2130 code->which);
2131
2132 if (format->code == MEDIA_BUS_FMT_YUYV8_2X8 ||
2133 format->code == MEDIA_BUS_FMT_UYVY8_2X8) {
2134
2135 if (code->index == 0)
2136 code->code = MEDIA_BUS_FMT_YUYV8_1X16;
2137 else if (code->index == 1)
2138 code->code = MEDIA_BUS_FMT_UYVY8_1X16;
2139 else
2140 return -EINVAL;
2141 } else {
2142
2143
2144
2145 if (code->index == 0)
2146 code->code = format->code;
2147 else
2148 return -EINVAL;
2149 }
2150 break;
2151
2152 case CCDC_PAD_SOURCE_VP:
2153
2154
2155
2156
2157 if (code->index != 0)
2158 return -EINVAL;
2159
2160 format = __ccdc_get_format(ccdc, cfg, code->pad,
2161 code->which);
2162
2163
2164
2165
2166 if (format->code == 0)
2167 return -EINVAL;
2168
2169 code->code = format->code;
2170 break;
2171
2172 default:
2173 return -EINVAL;
2174 }
2175
2176 return 0;
2177 }
2178
2179 static int ccdc_enum_frame_size(struct v4l2_subdev *sd,
2180 struct v4l2_subdev_pad_config *cfg,
2181 struct v4l2_subdev_frame_size_enum *fse)
2182 {
2183 struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
2184 struct v4l2_mbus_framefmt format;
2185
2186 if (fse->index != 0)
2187 return -EINVAL;
2188
2189 format.code = fse->code;
2190 format.width = 1;
2191 format.height = 1;
2192 ccdc_try_format(ccdc, cfg, fse->pad, &format, fse->which);
2193 fse->min_width = format.width;
2194 fse->min_height = format.height;
2195
2196 if (format.code != fse->code)
2197 return -EINVAL;
2198
2199 format.code = fse->code;
2200 format.width = -1;
2201 format.height = -1;
2202 ccdc_try_format(ccdc, cfg, fse->pad, &format, fse->which);
2203 fse->max_width = format.width;
2204 fse->max_height = format.height;
2205
2206 return 0;
2207 }
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220 static int ccdc_get_selection(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
2221 struct v4l2_subdev_selection *sel)
2222 {
2223 struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
2224 struct v4l2_mbus_framefmt *format;
2225
2226 if (sel->pad != CCDC_PAD_SOURCE_OF)
2227 return -EINVAL;
2228
2229 switch (sel->target) {
2230 case V4L2_SEL_TGT_CROP_BOUNDS:
2231 sel->r.left = 0;
2232 sel->r.top = 0;
2233 sel->r.width = INT_MAX;
2234 sel->r.height = INT_MAX;
2235
2236 format = __ccdc_get_format(ccdc, cfg, CCDC_PAD_SINK, sel->which);
2237 ccdc_try_crop(ccdc, format, &sel->r);
2238 break;
2239
2240 case V4L2_SEL_TGT_CROP:
2241 sel->r = *__ccdc_get_crop(ccdc, cfg, sel->which);
2242 break;
2243
2244 default:
2245 return -EINVAL;
2246 }
2247
2248 return 0;
2249 }
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262 static int ccdc_set_selection(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
2263 struct v4l2_subdev_selection *sel)
2264 {
2265 struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
2266 struct v4l2_mbus_framefmt *format;
2267
2268 if (sel->target != V4L2_SEL_TGT_CROP ||
2269 sel->pad != CCDC_PAD_SOURCE_OF)
2270 return -EINVAL;
2271
2272
2273 if (ccdc->state != ISP_PIPELINE_STREAM_STOPPED)
2274 return -EBUSY;
2275
2276
2277
2278
2279
2280 if (sel->flags & V4L2_SEL_FLAG_KEEP_CONFIG) {
2281 sel->r = *__ccdc_get_crop(ccdc, cfg, sel->which);
2282 return 0;
2283 }
2284
2285 format = __ccdc_get_format(ccdc, cfg, CCDC_PAD_SINK, sel->which);
2286 ccdc_try_crop(ccdc, format, &sel->r);
2287 *__ccdc_get_crop(ccdc, cfg, sel->which) = sel->r;
2288
2289
2290 format = __ccdc_get_format(ccdc, cfg, CCDC_PAD_SOURCE_OF, sel->which);
2291 ccdc_try_format(ccdc, cfg, CCDC_PAD_SOURCE_OF, format, sel->which);
2292
2293 return 0;
2294 }
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305 static int ccdc_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
2306 struct v4l2_subdev_format *fmt)
2307 {
2308 struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
2309 struct v4l2_mbus_framefmt *format;
2310
2311 format = __ccdc_get_format(ccdc, cfg, fmt->pad, fmt->which);
2312 if (format == NULL)
2313 return -EINVAL;
2314
2315 fmt->format = *format;
2316 return 0;
2317 }
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328 static int ccdc_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg,
2329 struct v4l2_subdev_format *fmt)
2330 {
2331 struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
2332 struct v4l2_mbus_framefmt *format;
2333 struct v4l2_rect *crop;
2334
2335 format = __ccdc_get_format(ccdc, cfg, fmt->pad, fmt->which);
2336 if (format == NULL)
2337 return -EINVAL;
2338
2339 ccdc_try_format(ccdc, cfg, fmt->pad, &fmt->format, fmt->which);
2340 *format = fmt->format;
2341
2342
2343 if (fmt->pad == CCDC_PAD_SINK) {
2344
2345 crop = __ccdc_get_crop(ccdc, cfg, fmt->which);
2346 crop->left = 0;
2347 crop->top = 0;
2348 crop->width = fmt->format.width;
2349 crop->height = fmt->format.height;
2350
2351 ccdc_try_crop(ccdc, &fmt->format, crop);
2352
2353
2354 format = __ccdc_get_format(ccdc, cfg, CCDC_PAD_SOURCE_OF,
2355 fmt->which);
2356 *format = fmt->format;
2357 ccdc_try_format(ccdc, cfg, CCDC_PAD_SOURCE_OF, format,
2358 fmt->which);
2359
2360 format = __ccdc_get_format(ccdc, cfg, CCDC_PAD_SOURCE_VP,
2361 fmt->which);
2362 *format = fmt->format;
2363 ccdc_try_format(ccdc, cfg, CCDC_PAD_SOURCE_VP, format,
2364 fmt->which);
2365 }
2366
2367 return 0;
2368 }
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380 static bool ccdc_is_shiftable(u32 in, u32 out, unsigned int additional_shift)
2381 {
2382 const struct isp_format_info *in_info, *out_info;
2383
2384 if (in == out)
2385 return true;
2386
2387 in_info = omap3isp_video_format_info(in);
2388 out_info = omap3isp_video_format_info(out);
2389
2390 if ((in_info->flavor == 0) || (out_info->flavor == 0))
2391 return false;
2392
2393 if (in_info->flavor != out_info->flavor)
2394 return false;
2395
2396 return in_info->width - out_info->width + additional_shift <= 6;
2397 }
2398
2399 static int ccdc_link_validate(struct v4l2_subdev *sd,
2400 struct media_link *link,
2401 struct v4l2_subdev_format *source_fmt,
2402 struct v4l2_subdev_format *sink_fmt)
2403 {
2404 struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
2405 unsigned long parallel_shift;
2406
2407
2408 if (source_fmt->format.width != sink_fmt->format.width ||
2409 source_fmt->format.height != sink_fmt->format.height)
2410 return -EPIPE;
2411
2412
2413 if (ccdc->input == CCDC_INPUT_PARALLEL) {
2414 struct v4l2_subdev *sd =
2415 media_entity_to_v4l2_subdev(link->source->entity);
2416 struct isp_bus_cfg *bus_cfg = v4l2_subdev_to_bus_cfg(sd);
2417
2418 parallel_shift = bus_cfg->bus.parallel.data_lane_shift;
2419 } else {
2420 parallel_shift = 0;
2421 }
2422
2423
2424 if (!ccdc_is_shiftable(source_fmt->format.code,
2425 sink_fmt->format.code, parallel_shift))
2426 return -EPIPE;
2427
2428 return 0;
2429 }
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440 static int ccdc_init_formats(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
2441 {
2442 struct v4l2_subdev_format format;
2443
2444 memset(&format, 0, sizeof(format));
2445 format.pad = CCDC_PAD_SINK;
2446 format.which = fh ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE;
2447 format.format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
2448 format.format.width = 4096;
2449 format.format.height = 4096;
2450 ccdc_set_format(sd, fh ? fh->pad : NULL, &format);
2451
2452 return 0;
2453 }
2454
2455
2456 static const struct v4l2_subdev_core_ops ccdc_v4l2_core_ops = {
2457 .ioctl = ccdc_ioctl,
2458 .subscribe_event = ccdc_subscribe_event,
2459 .unsubscribe_event = ccdc_unsubscribe_event,
2460 };
2461
2462
2463 static const struct v4l2_subdev_video_ops ccdc_v4l2_video_ops = {
2464 .s_stream = ccdc_set_stream,
2465 };
2466
2467
2468 static const struct v4l2_subdev_pad_ops ccdc_v4l2_pad_ops = {
2469 .enum_mbus_code = ccdc_enum_mbus_code,
2470 .enum_frame_size = ccdc_enum_frame_size,
2471 .get_fmt = ccdc_get_format,
2472 .set_fmt = ccdc_set_format,
2473 .get_selection = ccdc_get_selection,
2474 .set_selection = ccdc_set_selection,
2475 .link_validate = ccdc_link_validate,
2476 };
2477
2478
2479 static const struct v4l2_subdev_ops ccdc_v4l2_ops = {
2480 .core = &ccdc_v4l2_core_ops,
2481 .video = &ccdc_v4l2_video_ops,
2482 .pad = &ccdc_v4l2_pad_ops,
2483 };
2484
2485
2486 static const struct v4l2_subdev_internal_ops ccdc_v4l2_internal_ops = {
2487 .open = ccdc_init_formats,
2488 };
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503 static int ccdc_link_setup(struct media_entity *entity,
2504 const struct media_pad *local,
2505 const struct media_pad *remote, u32 flags)
2506 {
2507 struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
2508 struct isp_ccdc_device *ccdc = v4l2_get_subdevdata(sd);
2509 struct isp_device *isp = to_isp_device(ccdc);
2510 unsigned int index = local->index;
2511
2512
2513 if (is_media_entity_v4l2_subdev(remote->entity))
2514 index |= 2 << 16;
2515
2516 switch (index) {
2517 case CCDC_PAD_SINK | 2 << 16:
2518
2519
2520
2521 if (!(flags & MEDIA_LNK_FL_ENABLED)) {
2522 ccdc->input = CCDC_INPUT_NONE;
2523 break;
2524 }
2525
2526 if (ccdc->input != CCDC_INPUT_NONE)
2527 return -EBUSY;
2528
2529 if (remote->entity == &isp->isp_ccp2.subdev.entity)
2530 ccdc->input = CCDC_INPUT_CCP2B;
2531 else if (remote->entity == &isp->isp_csi2a.subdev.entity)
2532 ccdc->input = CCDC_INPUT_CSI2A;
2533 else if (remote->entity == &isp->isp_csi2c.subdev.entity)
2534 ccdc->input = CCDC_INPUT_CSI2C;
2535 else
2536 ccdc->input = CCDC_INPUT_PARALLEL;
2537
2538 break;
2539
2540
2541
2542
2543
2544
2545 case CCDC_PAD_SOURCE_VP | 2 << 16:
2546
2547
2548
2549 if (flags & MEDIA_LNK_FL_ENABLED) {
2550 if (ccdc->output & ~CCDC_OUTPUT_PREVIEW)
2551 return -EBUSY;
2552 ccdc->output |= CCDC_OUTPUT_PREVIEW;
2553 } else {
2554 ccdc->output &= ~CCDC_OUTPUT_PREVIEW;
2555 }
2556 break;
2557
2558 case CCDC_PAD_SOURCE_OF:
2559
2560 if (flags & MEDIA_LNK_FL_ENABLED) {
2561 if (ccdc->output & ~CCDC_OUTPUT_MEMORY)
2562 return -EBUSY;
2563 ccdc->output |= CCDC_OUTPUT_MEMORY;
2564 } else {
2565 ccdc->output &= ~CCDC_OUTPUT_MEMORY;
2566 }
2567 break;
2568
2569 case CCDC_PAD_SOURCE_OF | 2 << 16:
2570
2571 if (flags & MEDIA_LNK_FL_ENABLED) {
2572 if (ccdc->output & ~CCDC_OUTPUT_RESIZER)
2573 return -EBUSY;
2574 ccdc->output |= CCDC_OUTPUT_RESIZER;
2575 } else {
2576 ccdc->output &= ~CCDC_OUTPUT_RESIZER;
2577 }
2578 break;
2579
2580 default:
2581 return -EINVAL;
2582 }
2583
2584 return 0;
2585 }
2586
2587
2588 static const struct media_entity_operations ccdc_media_ops = {
2589 .link_setup = ccdc_link_setup,
2590 .link_validate = v4l2_subdev_link_validate,
2591 };
2592
2593 void omap3isp_ccdc_unregister_entities(struct isp_ccdc_device *ccdc)
2594 {
2595 v4l2_device_unregister_subdev(&ccdc->subdev);
2596 omap3isp_video_unregister(&ccdc->video_out);
2597 }
2598
2599 int omap3isp_ccdc_register_entities(struct isp_ccdc_device *ccdc,
2600 struct v4l2_device *vdev)
2601 {
2602 int ret;
2603
2604
2605 ccdc->subdev.dev = vdev->mdev->dev;
2606 ret = v4l2_device_register_subdev(vdev, &ccdc->subdev);
2607 if (ret < 0)
2608 goto error;
2609
2610 ret = omap3isp_video_register(&ccdc->video_out, vdev);
2611 if (ret < 0)
2612 goto error;
2613
2614 return 0;
2615
2616 error:
2617 omap3isp_ccdc_unregister_entities(ccdc);
2618 return ret;
2619 }
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631 static int ccdc_init_entities(struct isp_ccdc_device *ccdc)
2632 {
2633 struct v4l2_subdev *sd = &ccdc->subdev;
2634 struct media_pad *pads = ccdc->pads;
2635 struct media_entity *me = &sd->entity;
2636 int ret;
2637
2638 ccdc->input = CCDC_INPUT_NONE;
2639
2640 v4l2_subdev_init(sd, &ccdc_v4l2_ops);
2641 sd->internal_ops = &ccdc_v4l2_internal_ops;
2642 strscpy(sd->name, "OMAP3 ISP CCDC", sizeof(sd->name));
2643 sd->grp_id = 1 << 16;
2644 v4l2_set_subdevdata(sd, ccdc);
2645 sd->flags |= V4L2_SUBDEV_FL_HAS_EVENTS | V4L2_SUBDEV_FL_HAS_DEVNODE;
2646
2647 pads[CCDC_PAD_SINK].flags = MEDIA_PAD_FL_SINK
2648 | MEDIA_PAD_FL_MUST_CONNECT;
2649 pads[CCDC_PAD_SOURCE_VP].flags = MEDIA_PAD_FL_SOURCE;
2650 pads[CCDC_PAD_SOURCE_OF].flags = MEDIA_PAD_FL_SOURCE;
2651
2652 me->ops = &ccdc_media_ops;
2653 ret = media_entity_pads_init(me, CCDC_PADS_NUM, pads);
2654 if (ret < 0)
2655 return ret;
2656
2657 ccdc_init_formats(sd, NULL);
2658
2659 ccdc->video_out.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2660 ccdc->video_out.ops = &ccdc_video_ops;
2661 ccdc->video_out.isp = to_isp_device(ccdc);
2662 ccdc->video_out.capture_mem = PAGE_ALIGN(4096 * 4096) * 3;
2663 ccdc->video_out.bpl_alignment = 32;
2664
2665 ret = omap3isp_video_init(&ccdc->video_out, "CCDC");
2666 if (ret < 0)
2667 goto error;
2668
2669 return 0;
2670
2671 error:
2672 media_entity_cleanup(me);
2673 return ret;
2674 }
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684 int omap3isp_ccdc_init(struct isp_device *isp)
2685 {
2686 struct isp_ccdc_device *ccdc = &isp->isp_ccdc;
2687 int ret;
2688
2689 spin_lock_init(&ccdc->lock);
2690 init_waitqueue_head(&ccdc->wait);
2691 mutex_init(&ccdc->ioctl_lock);
2692
2693 ccdc->stopping = CCDC_STOP_NOT_REQUESTED;
2694
2695 INIT_WORK(&ccdc->lsc.table_work, ccdc_lsc_free_table_work);
2696 ccdc->lsc.state = LSC_STATE_STOPPED;
2697 INIT_LIST_HEAD(&ccdc->lsc.free_queue);
2698 spin_lock_init(&ccdc->lsc.req_lock);
2699
2700 ccdc->clamp.oblen = 0;
2701 ccdc->clamp.dcsubval = 0;
2702
2703 ccdc->update = OMAP3ISP_CCDC_BLCLAMP;
2704 ccdc_apply_controls(ccdc);
2705
2706 ret = ccdc_init_entities(ccdc);
2707 if (ret < 0) {
2708 mutex_destroy(&ccdc->ioctl_lock);
2709 return ret;
2710 }
2711
2712 return 0;
2713 }
2714
2715
2716
2717
2718
2719 void omap3isp_ccdc_cleanup(struct isp_device *isp)
2720 {
2721 struct isp_ccdc_device *ccdc = &isp->isp_ccdc;
2722
2723 omap3isp_video_cleanup(&ccdc->video_out);
2724 media_entity_cleanup(&ccdc->subdev.entity);
2725
2726
2727
2728
2729 ccdc_lsc_free_request(ccdc, ccdc->lsc.request);
2730 cancel_work_sync(&ccdc->lsc.table_work);
2731 ccdc_lsc_free_queue(ccdc, &ccdc->lsc.free_queue);
2732
2733 if (ccdc->fpc.addr != NULL)
2734 dma_free_coherent(isp->dev, ccdc->fpc.fpnum * 4, ccdc->fpc.addr,
2735 ccdc->fpc.dma);
2736
2737 mutex_destroy(&ccdc->ioctl_lock);
2738 }