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23#include <linux/module.h>
24#include <linux/interrupt.h>
25#include <linux/platform_device.h>
26#include <linux/slab.h>
27
28#include <media/v4l2-ioctl.h>
29
30#include "vpif.h"
31#include "vpif_capture.h"
32
33MODULE_DESCRIPTION("TI DaVinci VPIF Capture driver");
34MODULE_LICENSE("GPL");
35MODULE_VERSION(VPIF_CAPTURE_VERSION);
36
37#define vpif_err(fmt, arg...) v4l2_err(&vpif_obj.v4l2_dev, fmt, ## arg)
38#define vpif_dbg(level, debug, fmt, arg...) \
39 v4l2_dbg(level, debug, &vpif_obj.v4l2_dev, fmt, ## arg)
40
41static int debug = 1;
42
43module_param(debug, int, 0644);
44
45MODULE_PARM_DESC(debug, "Debug level 0-1");
46
47#define VPIF_DRIVER_NAME "vpif_capture"
48
49
50static struct vpif_device vpif_obj = { {NULL} };
51static struct device *vpif_dev;
52static void vpif_calculate_offsets(struct channel_obj *ch);
53static void vpif_config_addr(struct channel_obj *ch, int muxmode);
54
55static u8 channel_first_int[VPIF_NUMBER_OF_OBJECTS][2] = { {1, 1} };
56
57
58static int ycmux_mode;
59
60static inline struct vpif_cap_buffer *to_vpif_buffer(struct vb2_buffer *vb)
61{
62 return container_of(vb, struct vpif_cap_buffer, vb);
63}
64
65
66
67
68
69
70
71
72
73static int vpif_buffer_prepare(struct vb2_buffer *vb)
74{
75 struct vb2_queue *q = vb->vb2_queue;
76 struct channel_obj *ch = vb2_get_drv_priv(q);
77 struct common_obj *common;
78 unsigned long addr;
79
80 vpif_dbg(2, debug, "vpif_buffer_prepare\n");
81
82 common = &ch->common[VPIF_VIDEO_INDEX];
83
84 vb2_set_plane_payload(vb, 0, common->fmt.fmt.pix.sizeimage);
85 if (vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0))
86 return -EINVAL;
87
88 vb->v4l2_buf.field = common->fmt.fmt.pix.field;
89
90 addr = vb2_dma_contig_plane_dma_addr(vb, 0);
91 if (!IS_ALIGNED((addr + common->ytop_off), 8) ||
92 !IS_ALIGNED((addr + common->ybtm_off), 8) ||
93 !IS_ALIGNED((addr + common->ctop_off), 8) ||
94 !IS_ALIGNED((addr + common->cbtm_off), 8)) {
95 vpif_dbg(1, debug, "offset is not aligned\n");
96 return -EINVAL;
97 }
98
99 return 0;
100}
101
102
103
104
105
106
107
108
109
110
111
112
113
114static int vpif_buffer_queue_setup(struct vb2_queue *vq,
115 const struct v4l2_format *fmt,
116 unsigned int *nbuffers, unsigned int *nplanes,
117 unsigned int sizes[], void *alloc_ctxs[])
118{
119 struct channel_obj *ch = vb2_get_drv_priv(vq);
120 struct common_obj *common;
121
122 common = &ch->common[VPIF_VIDEO_INDEX];
123
124 vpif_dbg(2, debug, "vpif_buffer_setup\n");
125
126 if (fmt && fmt->fmt.pix.sizeimage < common->fmt.fmt.pix.sizeimage)
127 return -EINVAL;
128
129 if (vq->num_buffers + *nbuffers < 3)
130 *nbuffers = 3 - vq->num_buffers;
131
132 *nplanes = 1;
133 sizes[0] = fmt ? fmt->fmt.pix.sizeimage : common->fmt.fmt.pix.sizeimage;
134 alloc_ctxs[0] = common->alloc_ctx;
135
136
137 vpif_calculate_offsets(ch);
138
139 return 0;
140}
141
142
143
144
145
146static void vpif_buffer_queue(struct vb2_buffer *vb)
147{
148 struct channel_obj *ch = vb2_get_drv_priv(vb->vb2_queue);
149 struct vpif_cap_buffer *buf = to_vpif_buffer(vb);
150 struct common_obj *common;
151 unsigned long flags;
152
153 common = &ch->common[VPIF_VIDEO_INDEX];
154
155 vpif_dbg(2, debug, "vpif_buffer_queue\n");
156
157 spin_lock_irqsave(&common->irqlock, flags);
158
159 list_add_tail(&buf->list, &common->dma_queue);
160 spin_unlock_irqrestore(&common->irqlock, flags);
161}
162
163
164
165
166
167
168static int vpif_start_streaming(struct vb2_queue *vq, unsigned int count)
169{
170 struct vpif_capture_config *vpif_config_data =
171 vpif_dev->platform_data;
172 struct channel_obj *ch = vb2_get_drv_priv(vq);
173 struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
174 struct vpif_params *vpif = &ch->vpifparams;
175 struct vpif_cap_buffer *buf, *tmp;
176 unsigned long addr, flags;
177 int ret;
178
179 spin_lock_irqsave(&common->irqlock, flags);
180
181
182 ch->field_id = 0;
183
184
185 if (vpif_config_data->setup_input_channel_mode) {
186 ret = vpif_config_data->
187 setup_input_channel_mode(vpif->std_info.ycmux_mode);
188 if (ret < 0) {
189 vpif_dbg(1, debug, "can't set vpif channel mode\n");
190 goto err;
191 }
192 }
193
194 ret = v4l2_subdev_call(ch->sd, video, s_stream, 1);
195 if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV) {
196 vpif_dbg(1, debug, "stream on failed in subdev\n");
197 goto err;
198 }
199
200
201 ret = vpif_set_video_params(vpif, ch->channel_id);
202 if (ret < 0) {
203 vpif_dbg(1, debug, "can't set video params\n");
204 goto err;
205 }
206
207 ycmux_mode = ret;
208 vpif_config_addr(ch, ret);
209
210
211 common->cur_frm = common->next_frm = list_entry(common->dma_queue.next,
212 struct vpif_cap_buffer, list);
213
214 list_del(&common->cur_frm->list);
215 spin_unlock_irqrestore(&common->irqlock, flags);
216
217 addr = vb2_dma_contig_plane_dma_addr(&common->cur_frm->vb, 0);
218
219 common->set_addr(addr + common->ytop_off,
220 addr + common->ybtm_off,
221 addr + common->ctop_off,
222 addr + common->cbtm_off);
223
224
225
226
227
228 channel_first_int[VPIF_VIDEO_INDEX][ch->channel_id] = 1;
229 if (VPIF_CHANNEL0_VIDEO == ch->channel_id) {
230 channel0_intr_assert();
231 channel0_intr_enable(1);
232 enable_channel0(1);
233 }
234 if (VPIF_CHANNEL1_VIDEO == ch->channel_id ||
235 ycmux_mode == 2) {
236 channel1_intr_assert();
237 channel1_intr_enable(1);
238 enable_channel1(1);
239 }
240
241 return 0;
242
243err:
244 list_for_each_entry_safe(buf, tmp, &common->dma_queue, list) {
245 list_del(&buf->list);
246 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_QUEUED);
247 }
248 spin_unlock_irqrestore(&common->irqlock, flags);
249
250 return ret;
251}
252
253
254
255
256
257
258
259
260static void vpif_stop_streaming(struct vb2_queue *vq)
261{
262 struct channel_obj *ch = vb2_get_drv_priv(vq);
263 struct common_obj *common;
264 unsigned long flags;
265 int ret;
266
267 common = &ch->common[VPIF_VIDEO_INDEX];
268
269
270 if (VPIF_CHANNEL0_VIDEO == ch->channel_id) {
271 enable_channel0(0);
272 channel0_intr_enable(0);
273 }
274 if (VPIF_CHANNEL1_VIDEO == ch->channel_id ||
275 ycmux_mode == 2) {
276 enable_channel1(0);
277 channel1_intr_enable(0);
278 }
279
280 ycmux_mode = 0;
281
282 ret = v4l2_subdev_call(ch->sd, video, s_stream, 0);
283 if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV)
284 vpif_dbg(1, debug, "stream off failed in subdev\n");
285
286
287 spin_lock_irqsave(&common->irqlock, flags);
288 if (common->cur_frm == common->next_frm) {
289 vb2_buffer_done(&common->cur_frm->vb, VB2_BUF_STATE_ERROR);
290 } else {
291 if (common->cur_frm != NULL)
292 vb2_buffer_done(&common->cur_frm->vb,
293 VB2_BUF_STATE_ERROR);
294 if (common->next_frm != NULL)
295 vb2_buffer_done(&common->next_frm->vb,
296 VB2_BUF_STATE_ERROR);
297 }
298
299 while (!list_empty(&common->dma_queue)) {
300 common->next_frm = list_entry(common->dma_queue.next,
301 struct vpif_cap_buffer, list);
302 list_del(&common->next_frm->list);
303 vb2_buffer_done(&common->next_frm->vb, VB2_BUF_STATE_ERROR);
304 }
305 spin_unlock_irqrestore(&common->irqlock, flags);
306}
307
308static struct vb2_ops video_qops = {
309 .queue_setup = vpif_buffer_queue_setup,
310 .buf_prepare = vpif_buffer_prepare,
311 .start_streaming = vpif_start_streaming,
312 .stop_streaming = vpif_stop_streaming,
313 .buf_queue = vpif_buffer_queue,
314 .wait_prepare = vb2_ops_wait_prepare,
315 .wait_finish = vb2_ops_wait_finish,
316};
317
318
319
320
321
322
323
324
325
326static void vpif_process_buffer_complete(struct common_obj *common)
327{
328 v4l2_get_timestamp(&common->cur_frm->vb.v4l2_buf.timestamp);
329 vb2_buffer_done(&common->cur_frm->vb,
330 VB2_BUF_STATE_DONE);
331
332 common->cur_frm = common->next_frm;
333}
334
335
336
337
338
339
340
341
342
343static void vpif_schedule_next_buffer(struct common_obj *common)
344{
345 unsigned long addr = 0;
346
347 spin_lock(&common->irqlock);
348 common->next_frm = list_entry(common->dma_queue.next,
349 struct vpif_cap_buffer, list);
350
351 list_del(&common->next_frm->list);
352 spin_unlock(&common->irqlock);
353 addr = vb2_dma_contig_plane_dma_addr(&common->next_frm->vb, 0);
354
355
356 common->set_addr(addr + common->ytop_off,
357 addr + common->ybtm_off,
358 addr + common->ctop_off,
359 addr + common->cbtm_off);
360}
361
362
363
364
365
366
367
368
369
370static irqreturn_t vpif_channel_isr(int irq, void *dev_id)
371{
372 struct vpif_device *dev = &vpif_obj;
373 struct common_obj *common;
374 struct channel_obj *ch;
375 int channel_id = 0;
376 int fid = -1, i;
377
378 channel_id = *(int *)(dev_id);
379 if (!vpif_intr_status(channel_id))
380 return IRQ_NONE;
381
382 ch = dev->dev[channel_id];
383
384 for (i = 0; i < VPIF_NUMBER_OF_OBJECTS; i++) {
385 common = &ch->common[i];
386
387
388 if (1 == ch->vpifparams.std_info.frm_fmt) {
389
390 spin_lock(&common->irqlock);
391 if (list_empty(&common->dma_queue)) {
392 spin_unlock(&common->irqlock);
393 continue;
394 }
395 spin_unlock(&common->irqlock);
396
397 if (!channel_first_int[i][channel_id])
398 vpif_process_buffer_complete(common);
399
400 channel_first_int[i][channel_id] = 0;
401
402 vpif_schedule_next_buffer(common);
403
404
405 channel_first_int[i][channel_id] = 0;
406 } else {
407
408
409
410
411 if (channel_first_int[i][channel_id]) {
412 channel_first_int[i][channel_id] = 0;
413 continue;
414 }
415 if (0 == i) {
416 ch->field_id ^= 1;
417
418 fid = vpif_channel_getfid(ch->channel_id);
419 if (fid != ch->field_id) {
420
421
422
423
424 if (0 == fid)
425 ch->field_id = fid;
426 return IRQ_HANDLED;
427 }
428 }
429
430 if (0 == fid) {
431
432 if (common->cur_frm == common->next_frm)
433 continue;
434
435
436 vpif_process_buffer_complete(common);
437 } else if (1 == fid) {
438
439 spin_lock(&common->irqlock);
440 if (list_empty(&common->dma_queue) ||
441 (common->cur_frm != common->next_frm)) {
442 spin_unlock(&common->irqlock);
443 continue;
444 }
445 spin_unlock(&common->irqlock);
446
447 vpif_schedule_next_buffer(common);
448 }
449 }
450 }
451 return IRQ_HANDLED;
452}
453
454
455
456
457
458
459
460
461static int vpif_update_std_info(struct channel_obj *ch)
462{
463 struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
464 struct vpif_params *vpifparams = &ch->vpifparams;
465 const struct vpif_channel_config_params *config;
466 struct vpif_channel_config_params *std_info = &vpifparams->std_info;
467 struct video_obj *vid_ch = &ch->video;
468 int index;
469
470 vpif_dbg(2, debug, "vpif_update_std_info\n");
471
472 for (index = 0; index < vpif_ch_params_count; index++) {
473 config = &vpif_ch_params[index];
474 if (config->hd_sd == 0) {
475 vpif_dbg(2, debug, "SD format\n");
476 if (config->stdid & vid_ch->stdid) {
477 memcpy(std_info, config, sizeof(*config));
478 break;
479 }
480 } else {
481 vpif_dbg(2, debug, "HD format\n");
482 if (!memcmp(&config->dv_timings, &vid_ch->dv_timings,
483 sizeof(vid_ch->dv_timings))) {
484 memcpy(std_info, config, sizeof(*config));
485 break;
486 }
487 }
488 }
489
490
491 if (index == vpif_ch_params_count)
492 return -EINVAL;
493
494 common->fmt.fmt.pix.width = std_info->width;
495 common->width = std_info->width;
496 common->fmt.fmt.pix.height = std_info->height;
497 common->height = std_info->height;
498 common->fmt.fmt.pix.sizeimage = common->height * common->width * 2;
499 common->fmt.fmt.pix.bytesperline = std_info->width;
500 vpifparams->video_params.hpitch = std_info->width;
501 vpifparams->video_params.storage_mode = std_info->frm_fmt;
502
503 if (vid_ch->stdid)
504 common->fmt.fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
505 else
506 common->fmt.fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
507
508 if (ch->vpifparams.std_info.frm_fmt)
509 common->fmt.fmt.pix.field = V4L2_FIELD_NONE;
510 else
511 common->fmt.fmt.pix.field = V4L2_FIELD_INTERLACED;
512
513 if (ch->vpifparams.iface.if_type == VPIF_IF_RAW_BAYER)
514 common->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_SBGGR8;
515 else
516 common->fmt.fmt.pix.pixelformat = V4L2_PIX_FMT_YUV422P;
517
518 common->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
519
520 return 0;
521}
522
523
524
525
526
527
528
529
530static void vpif_calculate_offsets(struct channel_obj *ch)
531{
532 unsigned int hpitch, sizeimage;
533 struct video_obj *vid_ch = &(ch->video);
534 struct vpif_params *vpifparams = &ch->vpifparams;
535 struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
536 enum v4l2_field field = common->fmt.fmt.pix.field;
537
538 vpif_dbg(2, debug, "vpif_calculate_offsets\n");
539
540 if (V4L2_FIELD_ANY == field) {
541 if (vpifparams->std_info.frm_fmt)
542 vid_ch->buf_field = V4L2_FIELD_NONE;
543 else
544 vid_ch->buf_field = V4L2_FIELD_INTERLACED;
545 } else
546 vid_ch->buf_field = common->fmt.fmt.pix.field;
547
548 sizeimage = common->fmt.fmt.pix.sizeimage;
549
550 hpitch = common->fmt.fmt.pix.bytesperline;
551
552 if ((V4L2_FIELD_NONE == vid_ch->buf_field) ||
553 (V4L2_FIELD_INTERLACED == vid_ch->buf_field)) {
554
555 common->ytop_off = 0;
556 common->ybtm_off = hpitch;
557 common->ctop_off = sizeimage / 2;
558 common->cbtm_off = sizeimage / 2 + hpitch;
559 } else if (V4L2_FIELD_SEQ_TB == vid_ch->buf_field) {
560
561 common->ytop_off = 0;
562 common->ybtm_off = sizeimage / 4;
563 common->ctop_off = sizeimage / 2;
564 common->cbtm_off = common->ctop_off + sizeimage / 4;
565 } else if (V4L2_FIELD_SEQ_BT == vid_ch->buf_field) {
566
567 common->ybtm_off = 0;
568 common->ytop_off = sizeimage / 4;
569 common->cbtm_off = sizeimage / 2;
570 common->ctop_off = common->cbtm_off + sizeimage / 4;
571 }
572 if ((V4L2_FIELD_NONE == vid_ch->buf_field) ||
573 (V4L2_FIELD_INTERLACED == vid_ch->buf_field))
574 vpifparams->video_params.storage_mode = 1;
575 else
576 vpifparams->video_params.storage_mode = 0;
577
578 if (1 == vpifparams->std_info.frm_fmt)
579 vpifparams->video_params.hpitch =
580 common->fmt.fmt.pix.bytesperline;
581 else {
582 if ((field == V4L2_FIELD_ANY)
583 || (field == V4L2_FIELD_INTERLACED))
584 vpifparams->video_params.hpitch =
585 common->fmt.fmt.pix.bytesperline * 2;
586 else
587 vpifparams->video_params.hpitch =
588 common->fmt.fmt.pix.bytesperline;
589 }
590
591 ch->vpifparams.video_params.stdid = vpifparams->std_info.stdid;
592}
593
594
595
596
597
598static inline enum v4l2_field vpif_get_default_field(
599 struct vpif_interface *iface)
600{
601 return (iface->if_type == VPIF_IF_RAW_BAYER) ? V4L2_FIELD_NONE :
602 V4L2_FIELD_INTERLACED;
603}
604
605
606
607
608
609
610static void vpif_config_addr(struct channel_obj *ch, int muxmode)
611{
612 struct common_obj *common;
613
614 vpif_dbg(2, debug, "vpif_config_addr\n");
615
616 common = &(ch->common[VPIF_VIDEO_INDEX]);
617
618 if (VPIF_CHANNEL1_VIDEO == ch->channel_id)
619 common->set_addr = ch1_set_videobuf_addr;
620 else if (2 == muxmode)
621 common->set_addr = ch0_set_videobuf_addr_yc_nmux;
622 else
623 common->set_addr = ch0_set_videobuf_addr;
624}
625
626
627
628
629
630
631
632
633
634
635
636static int vpif_input_to_subdev(
637 struct vpif_capture_config *vpif_cfg,
638 struct vpif_capture_chan_config *chan_cfg,
639 int input_index)
640{
641 struct vpif_subdev_info *subdev_info;
642 const char *subdev_name;
643 int i;
644
645 vpif_dbg(2, debug, "vpif_input_to_subdev\n");
646
647 subdev_name = chan_cfg->inputs[input_index].subdev_name;
648 if (subdev_name == NULL)
649 return -1;
650
651
652 for (i = 0; i < vpif_cfg->subdev_count; i++) {
653 subdev_info = &vpif_cfg->subdev_info[i];
654 if (!strcmp(subdev_info->name, subdev_name))
655 return i;
656 }
657 return -1;
658}
659
660
661
662
663
664
665
666
667
668static int vpif_set_input(
669 struct vpif_capture_config *vpif_cfg,
670 struct channel_obj *ch,
671 int index)
672{
673 struct vpif_capture_chan_config *chan_cfg =
674 &vpif_cfg->chan_config[ch->channel_id];
675 struct vpif_subdev_info *subdev_info = NULL;
676 struct v4l2_subdev *sd = NULL;
677 u32 input = 0, output = 0;
678 int sd_index;
679 int ret;
680
681 sd_index = vpif_input_to_subdev(vpif_cfg, chan_cfg, index);
682 if (sd_index >= 0) {
683 sd = vpif_obj.sd[sd_index];
684 subdev_info = &vpif_cfg->subdev_info[sd_index];
685 }
686
687
688 if (sd && vpif_cfg->setup_input_path) {
689 ret = vpif_cfg->setup_input_path(ch->channel_id,
690 subdev_info->name);
691 if (ret < 0) {
692 vpif_dbg(1, debug, "couldn't setup input path for the" \
693 " sub device %s, for input index %d\n",
694 subdev_info->name, index);
695 return ret;
696 }
697 }
698
699 if (sd) {
700 input = chan_cfg->inputs[index].input_route;
701 output = chan_cfg->inputs[index].output_route;
702 ret = v4l2_subdev_call(sd, video, s_routing,
703 input, output, 0);
704 if (ret < 0 && ret != -ENOIOCTLCMD) {
705 vpif_dbg(1, debug, "Failed to set input\n");
706 return ret;
707 }
708 }
709 ch->input_idx = index;
710 ch->sd = sd;
711
712 ch->vpifparams.iface = chan_cfg->vpif_if;
713
714
715 ch->video_dev.tvnorms = chan_cfg->inputs[index].input.std;
716 return 0;
717}
718
719
720
721
722
723
724
725
726
727static int vpif_querystd(struct file *file, void *priv, v4l2_std_id *std_id)
728{
729 struct video_device *vdev = video_devdata(file);
730 struct channel_obj *ch = video_get_drvdata(vdev);
731 int ret = 0;
732
733 vpif_dbg(2, debug, "vpif_querystd\n");
734
735
736 ret = v4l2_subdev_call(ch->sd, video, querystd, std_id);
737
738 if (ret == -ENOIOCTLCMD || ret == -ENODEV)
739 return -ENODATA;
740 if (ret) {
741 vpif_dbg(1, debug, "Failed to query standard for sub devices\n");
742 return ret;
743 }
744
745 return 0;
746}
747
748
749
750
751
752
753
754static int vpif_g_std(struct file *file, void *priv, v4l2_std_id *std)
755{
756 struct vpif_capture_config *config = vpif_dev->platform_data;
757 struct video_device *vdev = video_devdata(file);
758 struct channel_obj *ch = video_get_drvdata(vdev);
759 struct vpif_capture_chan_config *chan_cfg;
760 struct v4l2_input input;
761
762 vpif_dbg(2, debug, "vpif_g_std\n");
763
764 if (config->chan_config[ch->channel_id].inputs == NULL)
765 return -ENODATA;
766
767 chan_cfg = &config->chan_config[ch->channel_id];
768 input = chan_cfg->inputs[ch->input_idx].input;
769 if (input.capabilities != V4L2_IN_CAP_STD)
770 return -ENODATA;
771
772 *std = ch->video.stdid;
773 return 0;
774}
775
776
777
778
779
780
781
782static int vpif_s_std(struct file *file, void *priv, v4l2_std_id std_id)
783{
784 struct vpif_capture_config *config = vpif_dev->platform_data;
785 struct video_device *vdev = video_devdata(file);
786 struct channel_obj *ch = video_get_drvdata(vdev);
787 struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
788 struct vpif_capture_chan_config *chan_cfg;
789 struct v4l2_input input;
790 int ret;
791
792 vpif_dbg(2, debug, "vpif_s_std\n");
793
794 if (config->chan_config[ch->channel_id].inputs == NULL)
795 return -ENODATA;
796
797 chan_cfg = &config->chan_config[ch->channel_id];
798 input = chan_cfg->inputs[ch->input_idx].input;
799 if (input.capabilities != V4L2_IN_CAP_STD)
800 return -ENODATA;
801
802 if (vb2_is_busy(&common->buffer_queue))
803 return -EBUSY;
804
805
806 ch->video.stdid = std_id;
807 memset(&ch->video.dv_timings, 0, sizeof(ch->video.dv_timings));
808
809
810 if (vpif_update_std_info(ch)) {
811 vpif_err("Error getting the standard info\n");
812 return -EINVAL;
813 }
814
815
816 ret = v4l2_subdev_call(ch->sd, video, s_std, std_id);
817 if (ret && ret != -ENOIOCTLCMD && ret != -ENODEV) {
818 vpif_dbg(1, debug, "Failed to set standard for sub devices\n");
819 return ret;
820 }
821 return 0;
822}
823
824
825
826
827
828
829
830static int vpif_enum_input(struct file *file, void *priv,
831 struct v4l2_input *input)
832{
833
834 struct vpif_capture_config *config = vpif_dev->platform_data;
835 struct video_device *vdev = video_devdata(file);
836 struct channel_obj *ch = video_get_drvdata(vdev);
837 struct vpif_capture_chan_config *chan_cfg;
838
839 chan_cfg = &config->chan_config[ch->channel_id];
840
841 if (input->index >= chan_cfg->input_count)
842 return -EINVAL;
843
844 memcpy(input, &chan_cfg->inputs[input->index].input,
845 sizeof(*input));
846 return 0;
847}
848
849
850
851
852
853
854
855static int vpif_g_input(struct file *file, void *priv, unsigned int *index)
856{
857 struct video_device *vdev = video_devdata(file);
858 struct channel_obj *ch = video_get_drvdata(vdev);
859
860 *index = ch->input_idx;
861 return 0;
862}
863
864
865
866
867
868
869
870static int vpif_s_input(struct file *file, void *priv, unsigned int index)
871{
872 struct vpif_capture_config *config = vpif_dev->platform_data;
873 struct video_device *vdev = video_devdata(file);
874 struct channel_obj *ch = video_get_drvdata(vdev);
875 struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
876 struct vpif_capture_chan_config *chan_cfg;
877
878 chan_cfg = &config->chan_config[ch->channel_id];
879
880 if (index >= chan_cfg->input_count)
881 return -EINVAL;
882
883 if (vb2_is_busy(&common->buffer_queue))
884 return -EBUSY;
885
886 return vpif_set_input(config, ch, index);
887}
888
889
890
891
892
893
894
895static int vpif_enum_fmt_vid_cap(struct file *file, void *priv,
896 struct v4l2_fmtdesc *fmt)
897{
898 struct video_device *vdev = video_devdata(file);
899 struct channel_obj *ch = video_get_drvdata(vdev);
900
901 if (fmt->index != 0) {
902 vpif_dbg(1, debug, "Invalid format index\n");
903 return -EINVAL;
904 }
905
906
907 if (ch->vpifparams.iface.if_type == VPIF_IF_RAW_BAYER) {
908 fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
909 strcpy(fmt->description, "Raw Mode -Bayer Pattern GrRBGb");
910 fmt->pixelformat = V4L2_PIX_FMT_SBGGR8;
911 } else {
912 fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
913 strcpy(fmt->description, "YCbCr4:2:2 YC Planar");
914 fmt->pixelformat = V4L2_PIX_FMT_YUV422P;
915 }
916 return 0;
917}
918
919
920
921
922
923
924
925static int vpif_try_fmt_vid_cap(struct file *file, void *priv,
926 struct v4l2_format *fmt)
927{
928 struct video_device *vdev = video_devdata(file);
929 struct channel_obj *ch = video_get_drvdata(vdev);
930 struct v4l2_pix_format *pixfmt = &fmt->fmt.pix;
931 struct common_obj *common = &(ch->common[VPIF_VIDEO_INDEX]);
932 struct vpif_params *vpif_params = &ch->vpifparams;
933
934
935
936
937
938 if (vpif_params->iface.if_type == VPIF_IF_RAW_BAYER) {
939 if (pixfmt->pixelformat != V4L2_PIX_FMT_SBGGR8)
940 pixfmt->pixelformat = V4L2_PIX_FMT_SBGGR8;
941 } else {
942 if (pixfmt->pixelformat != V4L2_PIX_FMT_YUV422P)
943 pixfmt->pixelformat = V4L2_PIX_FMT_YUV422P;
944 }
945
946 common->fmt.fmt.pix.pixelformat = pixfmt->pixelformat;
947
948 vpif_update_std_info(ch);
949
950 pixfmt->field = common->fmt.fmt.pix.field;
951 pixfmt->colorspace = common->fmt.fmt.pix.colorspace;
952 pixfmt->bytesperline = common->fmt.fmt.pix.width;
953 pixfmt->width = common->fmt.fmt.pix.width;
954 pixfmt->height = common->fmt.fmt.pix.height;
955 pixfmt->sizeimage = pixfmt->bytesperline * pixfmt->height * 2;
956 pixfmt->priv = 0;
957
958 return 0;
959}
960
961
962
963
964
965
966
967
968static int vpif_g_fmt_vid_cap(struct file *file, void *priv,
969 struct v4l2_format *fmt)
970{
971 struct video_device *vdev = video_devdata(file);
972 struct channel_obj *ch = video_get_drvdata(vdev);
973 struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
974
975
976 if (common->fmt.type != fmt->type)
977 return -EINVAL;
978
979
980 *fmt = common->fmt;
981 return 0;
982}
983
984
985
986
987
988
989
990static int vpif_s_fmt_vid_cap(struct file *file, void *priv,
991 struct v4l2_format *fmt)
992{
993 struct video_device *vdev = video_devdata(file);
994 struct channel_obj *ch = video_get_drvdata(vdev);
995 struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
996 int ret;
997
998 vpif_dbg(2, debug, "%s\n", __func__);
999
1000 if (vb2_is_busy(&common->buffer_queue))
1001 return -EBUSY;
1002
1003 ret = vpif_try_fmt_vid_cap(file, priv, fmt);
1004 if (ret)
1005 return ret;
1006
1007
1008 common->fmt = *fmt;
1009 return 0;
1010}
1011
1012
1013
1014
1015
1016
1017
1018static int vpif_querycap(struct file *file, void *priv,
1019 struct v4l2_capability *cap)
1020{
1021 struct vpif_capture_config *config = vpif_dev->platform_data;
1022
1023 cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING;
1024 cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
1025 strlcpy(cap->driver, VPIF_DRIVER_NAME, sizeof(cap->driver));
1026 snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s",
1027 dev_name(vpif_dev));
1028 strlcpy(cap->card, config->card_name, sizeof(cap->card));
1029
1030 return 0;
1031}
1032
1033
1034
1035
1036
1037
1038
1039static int
1040vpif_enum_dv_timings(struct file *file, void *priv,
1041 struct v4l2_enum_dv_timings *timings)
1042{
1043 struct vpif_capture_config *config = vpif_dev->platform_data;
1044 struct video_device *vdev = video_devdata(file);
1045 struct channel_obj *ch = video_get_drvdata(vdev);
1046 struct vpif_capture_chan_config *chan_cfg;
1047 struct v4l2_input input;
1048 int ret;
1049
1050 if (config->chan_config[ch->channel_id].inputs == NULL)
1051 return -ENODATA;
1052
1053 chan_cfg = &config->chan_config[ch->channel_id];
1054 input = chan_cfg->inputs[ch->input_idx].input;
1055 if (input.capabilities != V4L2_IN_CAP_DV_TIMINGS)
1056 return -ENODATA;
1057
1058 timings->pad = 0;
1059
1060 ret = v4l2_subdev_call(ch->sd, pad, enum_dv_timings, timings);
1061 if (ret == -ENOIOCTLCMD || ret == -ENODEV)
1062 return -EINVAL;
1063
1064 return ret;
1065}
1066
1067
1068
1069
1070
1071
1072
1073static int
1074vpif_query_dv_timings(struct file *file, void *priv,
1075 struct v4l2_dv_timings *timings)
1076{
1077 struct vpif_capture_config *config = vpif_dev->platform_data;
1078 struct video_device *vdev = video_devdata(file);
1079 struct channel_obj *ch = video_get_drvdata(vdev);
1080 struct vpif_capture_chan_config *chan_cfg;
1081 struct v4l2_input input;
1082 int ret;
1083
1084 if (config->chan_config[ch->channel_id].inputs == NULL)
1085 return -ENODATA;
1086
1087 chan_cfg = &config->chan_config[ch->channel_id];
1088 input = chan_cfg->inputs[ch->input_idx].input;
1089 if (input.capabilities != V4L2_IN_CAP_DV_TIMINGS)
1090 return -ENODATA;
1091
1092 ret = v4l2_subdev_call(ch->sd, video, query_dv_timings, timings);
1093 if (ret == -ENOIOCTLCMD || ret == -ENODEV)
1094 return -ENODATA;
1095
1096 return ret;
1097}
1098
1099
1100
1101
1102
1103
1104
1105static int vpif_s_dv_timings(struct file *file, void *priv,
1106 struct v4l2_dv_timings *timings)
1107{
1108 struct vpif_capture_config *config = vpif_dev->platform_data;
1109 struct video_device *vdev = video_devdata(file);
1110 struct channel_obj *ch = video_get_drvdata(vdev);
1111 struct vpif_params *vpifparams = &ch->vpifparams;
1112 struct vpif_channel_config_params *std_info = &vpifparams->std_info;
1113 struct common_obj *common = &ch->common[VPIF_VIDEO_INDEX];
1114 struct video_obj *vid_ch = &ch->video;
1115 struct v4l2_bt_timings *bt = &vid_ch->dv_timings.bt;
1116 struct vpif_capture_chan_config *chan_cfg;
1117 struct v4l2_input input;
1118 int ret;
1119
1120 if (config->chan_config[ch->channel_id].inputs == NULL)
1121 return -ENODATA;
1122
1123 chan_cfg = &config->chan_config[ch->channel_id];
1124 input = chan_cfg->inputs[ch->input_idx].input;
1125 if (input.capabilities != V4L2_IN_CAP_DV_TIMINGS)
1126 return -ENODATA;
1127
1128 if (timings->type != V4L2_DV_BT_656_1120) {
1129 vpif_dbg(2, debug, "Timing type not defined\n");
1130 return -EINVAL;
1131 }
1132
1133 if (vb2_is_busy(&common->buffer_queue))
1134 return -EBUSY;
1135
1136
1137 ret = v4l2_subdev_call(ch->sd, video, s_dv_timings, timings);
1138 if (ret == -ENOIOCTLCMD || ret == -ENODEV)
1139 ret = 0;
1140 if (ret < 0) {
1141 vpif_dbg(2, debug, "Error setting custom DV timings\n");
1142 return ret;
1143 }
1144
1145 if (!(timings->bt.width && timings->bt.height &&
1146 (timings->bt.hbackporch ||
1147 timings->bt.hfrontporch ||
1148 timings->bt.hsync) &&
1149 timings->bt.vfrontporch &&
1150 (timings->bt.vbackporch ||
1151 timings->bt.vsync))) {
1152 vpif_dbg(2, debug, "Timings for width, height, "
1153 "horizontal back porch, horizontal sync, "
1154 "horizontal front porch, vertical back porch, "
1155 "vertical sync and vertical back porch "
1156 "must be defined\n");
1157 return -EINVAL;
1158 }
1159
1160 vid_ch->dv_timings = *timings;
1161
1162
1163
1164 std_info->eav2sav = V4L2_DV_BT_BLANKING_WIDTH(bt) - 8;
1165 std_info->sav2eav = bt->width;
1166
1167 std_info->l1 = 1;
1168 std_info->l3 = bt->vsync + bt->vbackporch + 1;
1169
1170 std_info->vsize = V4L2_DV_BT_FRAME_HEIGHT(bt);
1171 if (bt->interlaced) {
1172 if (bt->il_vbackporch || bt->il_vfrontporch || bt->il_vsync) {
1173 std_info->l5 = std_info->vsize/2 -
1174 (bt->vfrontporch - 1);
1175 std_info->l7 = std_info->vsize/2 + 1;
1176 std_info->l9 = std_info->l7 + bt->il_vsync +
1177 bt->il_vbackporch + 1;
1178 std_info->l11 = std_info->vsize -
1179 (bt->il_vfrontporch - 1);
1180 } else {
1181 vpif_dbg(2, debug, "Required timing values for "
1182 "interlaced BT format missing\n");
1183 return -EINVAL;
1184 }
1185 } else {
1186 std_info->l5 = std_info->vsize - (bt->vfrontporch - 1);
1187 }
1188 strncpy(std_info->name, "Custom timings BT656/1120", VPIF_MAX_NAME);
1189 std_info->width = bt->width;
1190 std_info->height = bt->height;
1191 std_info->frm_fmt = bt->interlaced ? 0 : 1;
1192 std_info->ycmux_mode = 0;
1193 std_info->capture_format = 0;
1194 std_info->vbi_supported = 0;
1195 std_info->hd_sd = 1;
1196 std_info->stdid = 0;
1197
1198 vid_ch->stdid = 0;
1199 return 0;
1200}
1201
1202
1203
1204
1205
1206
1207
1208static int vpif_g_dv_timings(struct file *file, void *priv,
1209 struct v4l2_dv_timings *timings)
1210{
1211 struct vpif_capture_config *config = vpif_dev->platform_data;
1212 struct video_device *vdev = video_devdata(file);
1213 struct channel_obj *ch = video_get_drvdata(vdev);
1214 struct video_obj *vid_ch = &ch->video;
1215 struct vpif_capture_chan_config *chan_cfg;
1216 struct v4l2_input input;
1217
1218 if (config->chan_config[ch->channel_id].inputs == NULL)
1219 return -ENODATA;
1220
1221 chan_cfg = &config->chan_config[ch->channel_id];
1222 input = chan_cfg->inputs[ch->input_idx].input;
1223 if (input.capabilities != V4L2_IN_CAP_DV_TIMINGS)
1224 return -ENODATA;
1225
1226 *timings = vid_ch->dv_timings;
1227
1228 return 0;
1229}
1230
1231
1232
1233
1234
1235
1236
1237
1238static int vpif_log_status(struct file *filep, void *priv)
1239{
1240
1241 v4l2_device_call_all(&vpif_obj.v4l2_dev, 0, core, log_status);
1242
1243 return 0;
1244}
1245
1246
1247static const struct v4l2_ioctl_ops vpif_ioctl_ops = {
1248 .vidioc_querycap = vpif_querycap,
1249 .vidioc_enum_fmt_vid_cap = vpif_enum_fmt_vid_cap,
1250 .vidioc_g_fmt_vid_cap = vpif_g_fmt_vid_cap,
1251 .vidioc_s_fmt_vid_cap = vpif_s_fmt_vid_cap,
1252 .vidioc_try_fmt_vid_cap = vpif_try_fmt_vid_cap,
1253
1254 .vidioc_enum_input = vpif_enum_input,
1255 .vidioc_s_input = vpif_s_input,
1256 .vidioc_g_input = vpif_g_input,
1257
1258 .vidioc_reqbufs = vb2_ioctl_reqbufs,
1259 .vidioc_create_bufs = vb2_ioctl_create_bufs,
1260 .vidioc_querybuf = vb2_ioctl_querybuf,
1261 .vidioc_qbuf = vb2_ioctl_qbuf,
1262 .vidioc_dqbuf = vb2_ioctl_dqbuf,
1263 .vidioc_expbuf = vb2_ioctl_expbuf,
1264 .vidioc_streamon = vb2_ioctl_streamon,
1265 .vidioc_streamoff = vb2_ioctl_streamoff,
1266
1267 .vidioc_querystd = vpif_querystd,
1268 .vidioc_s_std = vpif_s_std,
1269 .vidioc_g_std = vpif_g_std,
1270
1271 .vidioc_enum_dv_timings = vpif_enum_dv_timings,
1272 .vidioc_query_dv_timings = vpif_query_dv_timings,
1273 .vidioc_s_dv_timings = vpif_s_dv_timings,
1274 .vidioc_g_dv_timings = vpif_g_dv_timings,
1275
1276 .vidioc_log_status = vpif_log_status,
1277};
1278
1279
1280static struct v4l2_file_operations vpif_fops = {
1281 .owner = THIS_MODULE,
1282 .open = v4l2_fh_open,
1283 .release = vb2_fop_release,
1284 .unlocked_ioctl = video_ioctl2,
1285 .mmap = vb2_fop_mmap,
1286 .poll = vb2_fop_poll
1287};
1288
1289
1290
1291
1292
1293
1294static int initialize_vpif(void)
1295{
1296 int err, i, j;
1297 int free_channel_objects_index;
1298
1299
1300 for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) {
1301 vpif_obj.dev[i] =
1302 kzalloc(sizeof(*vpif_obj.dev[i]), GFP_KERNEL);
1303
1304 if (!vpif_obj.dev[i]) {
1305 free_channel_objects_index = i;
1306 err = -ENOMEM;
1307 goto vpif_init_free_channel_objects;
1308 }
1309 }
1310 return 0;
1311
1312vpif_init_free_channel_objects:
1313 for (j = 0; j < free_channel_objects_index; j++)
1314 kfree(vpif_obj.dev[j]);
1315 return err;
1316}
1317
1318static int vpif_async_bound(struct v4l2_async_notifier *notifier,
1319 struct v4l2_subdev *subdev,
1320 struct v4l2_async_subdev *asd)
1321{
1322 int i;
1323
1324 for (i = 0; i < vpif_obj.config->subdev_count; i++)
1325 if (!strcmp(vpif_obj.config->subdev_info[i].name,
1326 subdev->name)) {
1327 vpif_obj.sd[i] = subdev;
1328 return 0;
1329 }
1330
1331 return -EINVAL;
1332}
1333
1334static int vpif_probe_complete(void)
1335{
1336 struct common_obj *common;
1337 struct video_device *vdev;
1338 struct channel_obj *ch;
1339 struct vb2_queue *q;
1340 int j, err, k;
1341
1342 for (j = 0; j < VPIF_CAPTURE_MAX_DEVICES; j++) {
1343 ch = vpif_obj.dev[j];
1344 ch->channel_id = j;
1345 common = &(ch->common[VPIF_VIDEO_INDEX]);
1346 spin_lock_init(&common->irqlock);
1347 mutex_init(&common->lock);
1348
1349
1350 err = vpif_set_input(vpif_obj.config, ch, 0);
1351 if (err)
1352 goto probe_out;
1353
1354
1355 ch->video.stdid = V4L2_STD_525_60;
1356 memset(&ch->video.dv_timings, 0, sizeof(ch->video.dv_timings));
1357 vpif_update_std_info(ch);
1358
1359
1360 q = &common->buffer_queue;
1361 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1362 q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
1363 q->drv_priv = ch;
1364 q->ops = &video_qops;
1365 q->mem_ops = &vb2_dma_contig_memops;
1366 q->buf_struct_size = sizeof(struct vpif_cap_buffer);
1367 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1368 q->min_buffers_needed = 1;
1369 q->lock = &common->lock;
1370
1371 err = vb2_queue_init(q);
1372 if (err) {
1373 vpif_err("vpif_capture: vb2_queue_init() failed\n");
1374 goto probe_out;
1375 }
1376
1377 common->alloc_ctx = vb2_dma_contig_init_ctx(vpif_dev);
1378 if (IS_ERR(common->alloc_ctx)) {
1379 vpif_err("Failed to get the context\n");
1380 err = PTR_ERR(common->alloc_ctx);
1381 goto probe_out;
1382 }
1383
1384 INIT_LIST_HEAD(&common->dma_queue);
1385
1386
1387 vdev = &ch->video_dev;
1388 strlcpy(vdev->name, VPIF_DRIVER_NAME, sizeof(vdev->name));
1389 vdev->release = video_device_release_empty;
1390 vdev->fops = &vpif_fops;
1391 vdev->ioctl_ops = &vpif_ioctl_ops;
1392 vdev->v4l2_dev = &vpif_obj.v4l2_dev;
1393 vdev->vfl_dir = VFL_DIR_RX;
1394 vdev->queue = q;
1395 vdev->lock = &common->lock;
1396 video_set_drvdata(&ch->video_dev, ch);
1397 err = video_register_device(vdev,
1398 VFL_TYPE_GRABBER, (j ? 1 : 0));
1399 if (err)
1400 goto probe_out;
1401 }
1402
1403 v4l2_info(&vpif_obj.v4l2_dev, "VPIF capture driver initialized\n");
1404 return 0;
1405
1406probe_out:
1407 for (k = 0; k < j; k++) {
1408
1409 ch = vpif_obj.dev[k];
1410 common = &ch->common[k];
1411 vb2_dma_contig_cleanup_ctx(common->alloc_ctx);
1412
1413 video_unregister_device(&ch->video_dev);
1414 }
1415 kfree(vpif_obj.sd);
1416 v4l2_device_unregister(&vpif_obj.v4l2_dev);
1417
1418 return err;
1419}
1420
1421static int vpif_async_complete(struct v4l2_async_notifier *notifier)
1422{
1423 return vpif_probe_complete();
1424}
1425
1426
1427
1428
1429
1430
1431
1432
1433static __init int vpif_probe(struct platform_device *pdev)
1434{
1435 struct vpif_subdev_info *subdevdata;
1436 struct i2c_adapter *i2c_adap;
1437 struct resource *res;
1438 int subdev_count;
1439 int res_idx = 0;
1440 int i, err;
1441
1442 vpif_dev = &pdev->dev;
1443
1444 err = initialize_vpif();
1445 if (err) {
1446 v4l2_err(vpif_dev->driver, "Error initializing vpif\n");
1447 return err;
1448 }
1449
1450 err = v4l2_device_register(vpif_dev, &vpif_obj.v4l2_dev);
1451 if (err) {
1452 v4l2_err(vpif_dev->driver, "Error registering v4l2 device\n");
1453 return err;
1454 }
1455
1456 while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, res_idx))) {
1457 err = devm_request_irq(&pdev->dev, res->start, vpif_channel_isr,
1458 IRQF_SHARED, VPIF_DRIVER_NAME,
1459 (void *)(&vpif_obj.dev[res_idx]->
1460 channel_id));
1461 if (err) {
1462 err = -EINVAL;
1463 goto vpif_unregister;
1464 }
1465 res_idx++;
1466 }
1467
1468 vpif_obj.config = pdev->dev.platform_data;
1469
1470 subdev_count = vpif_obj.config->subdev_count;
1471 vpif_obj.sd = kzalloc(sizeof(struct v4l2_subdev *) * subdev_count,
1472 GFP_KERNEL);
1473 if (vpif_obj.sd == NULL) {
1474 vpif_err("unable to allocate memory for subdevice pointers\n");
1475 err = -ENOMEM;
1476 goto vpif_unregister;
1477 }
1478
1479 if (!vpif_obj.config->asd_sizes) {
1480 i2c_adap = i2c_get_adapter(1);
1481 for (i = 0; i < subdev_count; i++) {
1482 subdevdata = &vpif_obj.config->subdev_info[i];
1483 vpif_obj.sd[i] =
1484 v4l2_i2c_new_subdev_board(&vpif_obj.v4l2_dev,
1485 i2c_adap,
1486 &subdevdata->
1487 board_info,
1488 NULL);
1489
1490 if (!vpif_obj.sd[i]) {
1491 vpif_err("Error registering v4l2 subdevice\n");
1492 err = -ENODEV;
1493 goto probe_subdev_out;
1494 }
1495 v4l2_info(&vpif_obj.v4l2_dev,
1496 "registered sub device %s\n",
1497 subdevdata->name);
1498 }
1499 vpif_probe_complete();
1500 } else {
1501 vpif_obj.notifier.subdevs = vpif_obj.config->asd;
1502 vpif_obj.notifier.num_subdevs = vpif_obj.config->asd_sizes[0];
1503 vpif_obj.notifier.bound = vpif_async_bound;
1504 vpif_obj.notifier.complete = vpif_async_complete;
1505 err = v4l2_async_notifier_register(&vpif_obj.v4l2_dev,
1506 &vpif_obj.notifier);
1507 if (err) {
1508 vpif_err("Error registering async notifier\n");
1509 err = -EINVAL;
1510 goto probe_subdev_out;
1511 }
1512 }
1513
1514 return 0;
1515
1516probe_subdev_out:
1517
1518 kfree(vpif_obj.sd);
1519vpif_unregister:
1520 v4l2_device_unregister(&vpif_obj.v4l2_dev);
1521
1522 return err;
1523}
1524
1525
1526
1527
1528
1529
1530
1531static int vpif_remove(struct platform_device *device)
1532{
1533 struct common_obj *common;
1534 struct channel_obj *ch;
1535 int i;
1536
1537 v4l2_device_unregister(&vpif_obj.v4l2_dev);
1538
1539 kfree(vpif_obj.sd);
1540
1541 for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) {
1542
1543 ch = vpif_obj.dev[i];
1544 common = &ch->common[VPIF_VIDEO_INDEX];
1545 vb2_dma_contig_cleanup_ctx(common->alloc_ctx);
1546
1547 video_unregister_device(&ch->video_dev);
1548 kfree(vpif_obj.dev[i]);
1549 }
1550 return 0;
1551}
1552
1553#ifdef CONFIG_PM_SLEEP
1554
1555
1556
1557static int vpif_suspend(struct device *dev)
1558{
1559
1560 struct common_obj *common;
1561 struct channel_obj *ch;
1562 int i;
1563
1564 for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) {
1565
1566 ch = vpif_obj.dev[i];
1567 common = &ch->common[VPIF_VIDEO_INDEX];
1568
1569 if (!vb2_start_streaming_called(&common->buffer_queue))
1570 continue;
1571
1572 mutex_lock(&common->lock);
1573
1574 if (ch->channel_id == VPIF_CHANNEL0_VIDEO) {
1575 enable_channel0(0);
1576 channel0_intr_enable(0);
1577 }
1578 if (ch->channel_id == VPIF_CHANNEL1_VIDEO ||
1579 ycmux_mode == 2) {
1580 enable_channel1(0);
1581 channel1_intr_enable(0);
1582 }
1583 mutex_unlock(&common->lock);
1584 }
1585
1586 return 0;
1587}
1588
1589
1590
1591
1592static int vpif_resume(struct device *dev)
1593{
1594 struct common_obj *common;
1595 struct channel_obj *ch;
1596 int i;
1597
1598 for (i = 0; i < VPIF_CAPTURE_MAX_DEVICES; i++) {
1599
1600 ch = vpif_obj.dev[i];
1601 common = &ch->common[VPIF_VIDEO_INDEX];
1602
1603 if (!vb2_start_streaming_called(&common->buffer_queue))
1604 continue;
1605
1606 mutex_lock(&common->lock);
1607
1608 if (ch->channel_id == VPIF_CHANNEL0_VIDEO) {
1609 enable_channel0(1);
1610 channel0_intr_enable(1);
1611 }
1612 if (ch->channel_id == VPIF_CHANNEL1_VIDEO ||
1613 ycmux_mode == 2) {
1614 enable_channel1(1);
1615 channel1_intr_enable(1);
1616 }
1617 mutex_unlock(&common->lock);
1618 }
1619
1620 return 0;
1621}
1622#endif
1623
1624static SIMPLE_DEV_PM_OPS(vpif_pm_ops, vpif_suspend, vpif_resume);
1625
1626static __refdata struct platform_driver vpif_driver = {
1627 .driver = {
1628 .name = VPIF_DRIVER_NAME,
1629 .pm = &vpif_pm_ops,
1630 },
1631 .probe = vpif_probe,
1632 .remove = vpif_remove,
1633};
1634
1635module_platform_driver(vpif_driver);
1636