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27#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
28
29#include "cx25821-video.h"
30#include <linux/smp_lock.h>
31
32MODULE_DESCRIPTION("v4l2 driver module for cx25821 based TV cards");
33MODULE_AUTHOR("Hiep Huynh <hiep.huynh@conexant.com>");
34MODULE_LICENSE("GPL");
35
36static unsigned int video_nr[] = {[0 ... (CX25821_MAXBOARDS - 1)] = UNSET };
37static unsigned int radio_nr[] = {[0 ... (CX25821_MAXBOARDS - 1)] = UNSET };
38
39module_param_array(video_nr, int, NULL, 0444);
40module_param_array(radio_nr, int, NULL, 0444);
41
42MODULE_PARM_DESC(video_nr, "video device numbers");
43MODULE_PARM_DESC(radio_nr, "radio device numbers");
44
45static unsigned int video_debug = VIDEO_DEBUG;
46module_param(video_debug, int, 0644);
47MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
48
49static unsigned int irq_debug;
50module_param(irq_debug, int, 0644);
51MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
52
53unsigned int vid_limit = 16;
54module_param(vid_limit, int, 0644);
55MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
56
57static void cx25821_init_controls(struct cx25821_dev *dev, int chan_num);
58
59static const struct v4l2_file_operations video_fops;
60static const struct v4l2_ioctl_ops video_ioctl_ops;
61
62#define FORMAT_FLAGS_PACKED 0x01
63
64struct cx25821_fmt formats[] = {
65 {
66 .name = "8 bpp, gray",
67 .fourcc = V4L2_PIX_FMT_GREY,
68 .depth = 8,
69 .flags = FORMAT_FLAGS_PACKED,
70 }, {
71 .name = "4:1:1, packed, Y41P",
72 .fourcc = V4L2_PIX_FMT_Y41P,
73 .depth = 12,
74 .flags = FORMAT_FLAGS_PACKED,
75 }, {
76 .name = "4:2:2, packed, YUYV",
77 .fourcc = V4L2_PIX_FMT_YUYV,
78 .depth = 16,
79 .flags = FORMAT_FLAGS_PACKED,
80 }, {
81 .name = "4:2:2, packed, UYVY",
82 .fourcc = V4L2_PIX_FMT_UYVY,
83 .depth = 16,
84 .flags = FORMAT_FLAGS_PACKED,
85 }, {
86 .name = "4:2:0, YUV",
87 .fourcc = V4L2_PIX_FMT_YUV420,
88 .depth = 12,
89 .flags = FORMAT_FLAGS_PACKED,
90 },
91};
92
93int cx25821_get_format_size(void)
94{
95 return ARRAY_SIZE(formats);
96}
97
98struct cx25821_fmt *cx25821_format_by_fourcc(unsigned int fourcc)
99{
100 unsigned int i;
101
102 if (fourcc == V4L2_PIX_FMT_Y41P || fourcc == V4L2_PIX_FMT_YUV411P) {
103 return formats + 1;
104 }
105
106 for (i = 0; i < ARRAY_SIZE(formats); i++)
107 if (formats[i].fourcc == fourcc)
108 return formats + i;
109
110 pr_err("%s(0x%08x) NOT FOUND\n", __func__, fourcc);
111 return NULL;
112}
113
114void cx25821_dump_video_queue(struct cx25821_dev *dev, struct cx25821_dmaqueue *q)
115{
116 struct cx25821_buffer *buf;
117 struct list_head *item;
118 dprintk(1, "%s()\n", __func__);
119
120 if (!list_empty(&q->active)) {
121 list_for_each(item, &q->active)
122 buf = list_entry(item, struct cx25821_buffer, vb.queue);
123 }
124
125 if (!list_empty(&q->queued)) {
126 list_for_each(item, &q->queued)
127 buf = list_entry(item, struct cx25821_buffer, vb.queue);
128 }
129
130}
131
132void cx25821_video_wakeup(struct cx25821_dev *dev, struct cx25821_dmaqueue *q,
133 u32 count)
134{
135 struct cx25821_buffer *buf;
136 int bc;
137
138 for (bc = 0;; bc++) {
139 if (list_empty(&q->active)) {
140 dprintk(1, "bc=%d (=0: active empty)\n", bc);
141 break;
142 }
143
144 buf =
145 list_entry(q->active.next, struct cx25821_buffer, vb.queue);
146
147
148
149
150 if ((s16) (count - buf->count) < 0) {
151 break;
152 }
153
154 do_gettimeofday(&buf->vb.ts);
155 buf->vb.state = VIDEOBUF_DONE;
156 list_del(&buf->vb.queue);
157 wake_up(&buf->vb.done);
158 }
159
160 if (list_empty(&q->active))
161 del_timer(&q->timeout);
162 else
163 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
164 if (bc != 1)
165 pr_err("%s: %d buffers handled (should be 1)\n",
166 __func__, bc);
167}
168
169#ifdef TUNER_FLAG
170int cx25821_set_tvnorm(struct cx25821_dev *dev, v4l2_std_id norm)
171{
172 dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
173 __func__, (unsigned int)norm, v4l2_norm_to_name(norm));
174
175 dev->tvnorm = norm;
176
177
178 cx25821_call_all(dev, core, s_std, norm);
179
180 return 0;
181}
182#endif
183
184struct video_device *cx25821_vdev_init(struct cx25821_dev *dev,
185 struct pci_dev *pci,
186 struct video_device *template,
187 char *type)
188{
189 struct video_device *vfd;
190 dprintk(1, "%s()\n", __func__);
191
192 vfd = video_device_alloc();
193 if (NULL == vfd)
194 return NULL;
195 *vfd = *template;
196 vfd->v4l2_dev = &dev->v4l2_dev;
197 vfd->release = video_device_release;
198 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name, type,
199 cx25821_boards[dev->board].name);
200 video_set_drvdata(vfd, dev);
201 return vfd;
202}
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223
224int cx25821_res_get(struct cx25821_dev *dev, struct cx25821_fh *fh, unsigned int bit)
225{
226 dprintk(1, "%s()\n", __func__);
227 if (fh->resources & bit)
228
229 return 1;
230
231
232 mutex_lock(&dev->lock);
233 if (dev->channels[fh->channel_id].resources & bit) {
234
235 mutex_unlock(&dev->lock);
236 return 0;
237 }
238
239 fh->resources |= bit;
240 dev->channels[fh->channel_id].resources |= bit;
241 dprintk(1, "res: get %d\n", bit);
242 mutex_unlock(&dev->lock);
243 return 1;
244}
245
246int cx25821_res_check(struct cx25821_fh *fh, unsigned int bit)
247{
248 return fh->resources & bit;
249}
250
251int cx25821_res_locked(struct cx25821_fh *fh, unsigned int bit)
252{
253 return fh->dev->channels[fh->channel_id].resources & bit;
254}
255
256void cx25821_res_free(struct cx25821_dev *dev, struct cx25821_fh *fh, unsigned int bits)
257{
258 BUG_ON((fh->resources & bits) != bits);
259 dprintk(1, "%s()\n", __func__);
260
261 mutex_lock(&dev->lock);
262 fh->resources &= ~bits;
263 dev->channels[fh->channel_id].resources &= ~bits;
264 dprintk(1, "res: put %d\n", bits);
265 mutex_unlock(&dev->lock);
266}
267
268int cx25821_video_mux(struct cx25821_dev *dev, unsigned int input)
269{
270 struct v4l2_routing route;
271 memset(&route, 0, sizeof(route));
272
273 dprintk(1, "%s(): video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
274 __func__, input, INPUT(input)->vmux, INPUT(input)->gpio0,
275 INPUT(input)->gpio1, INPUT(input)->gpio2, INPUT(input)->gpio3);
276 dev->input = input;
277
278 route.input = INPUT(input)->vmux;
279
280
281 cx25821_call_all(dev, video, s_routing, INPUT(input)->vmux, 0, 0);
282
283 return 0;
284}
285
286int cx25821_start_video_dma(struct cx25821_dev *dev,
287 struct cx25821_dmaqueue *q,
288 struct cx25821_buffer *buf,
289 struct sram_channel *channel)
290{
291 int tmp = 0;
292
293
294 cx25821_sram_channel_setup(dev, channel, buf->bpl, buf->risc.dma);
295
296
297 cx_write(channel->gpcnt_ctl, 3);
298 q->count = 1;
299
300
301 cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | (1 << channel->i));
302 cx_set(channel->int_msk, 0x11);
303
304
305 cx_write(channel->dma_ctl, 0x11);
306
307
308 tmp = cx_read(VID_CH_MODE_SEL);
309 cx_write(VID_CH_MODE_SEL, tmp & 0xFFFFFE00);
310
311 return 0;
312}
313
314int cx25821_restart_video_queue(struct cx25821_dev *dev,
315 struct cx25821_dmaqueue *q,
316 struct sram_channel *channel)
317{
318 struct cx25821_buffer *buf, *prev;
319 struct list_head *item;
320
321 if (!list_empty(&q->active)) {
322 buf =
323 list_entry(q->active.next, struct cx25821_buffer, vb.queue);
324
325 cx25821_start_video_dma(dev, q, buf, channel);
326
327 list_for_each(item, &q->active) {
328 buf = list_entry(item, struct cx25821_buffer, vb.queue);
329 buf->count = q->count++;
330 }
331
332 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
333 return 0;
334 }
335
336 prev = NULL;
337 for (;;) {
338 if (list_empty(&q->queued))
339 return 0;
340
341 buf =
342 list_entry(q->queued.next, struct cx25821_buffer, vb.queue);
343
344 if (NULL == prev) {
345 list_move_tail(&buf->vb.queue, &q->active);
346 cx25821_start_video_dma(dev, q, buf, channel);
347 buf->vb.state = VIDEOBUF_ACTIVE;
348 buf->count = q->count++;
349 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
350 } else if (prev->vb.width == buf->vb.width &&
351 prev->vb.height == buf->vb.height &&
352 prev->fmt == buf->fmt) {
353 list_move_tail(&buf->vb.queue, &q->active);
354 buf->vb.state = VIDEOBUF_ACTIVE;
355 buf->count = q->count++;
356 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
357 prev->risc.jmp[2] = cpu_to_le32(0);
358 } else {
359 return 0;
360 }
361 prev = buf;
362 }
363}
364
365void cx25821_vid_timeout(unsigned long data)
366{
367 struct cx25821_data *timeout_data = (struct cx25821_data *)data;
368 struct cx25821_dev *dev = timeout_data->dev;
369 struct sram_channel *channel = timeout_data->channel;
370 struct cx25821_dmaqueue *q = &dev->channels[channel->i].vidq;
371 struct cx25821_buffer *buf;
372 unsigned long flags;
373
374
375 cx_clear(channel->dma_ctl, 0x11);
376
377 spin_lock_irqsave(&dev->slock, flags);
378 while (!list_empty(&q->active)) {
379 buf =
380 list_entry(q->active.next, struct cx25821_buffer, vb.queue);
381 list_del(&buf->vb.queue);
382
383 buf->vb.state = VIDEOBUF_ERROR;
384 wake_up(&buf->vb.done);
385 }
386
387 cx25821_restart_video_queue(dev, q, channel);
388 spin_unlock_irqrestore(&dev->slock, flags);
389}
390
391int cx25821_video_irq(struct cx25821_dev *dev, int chan_num, u32 status)
392{
393 u32 count = 0;
394 int handled = 0;
395 u32 mask;
396 struct sram_channel *channel = dev->channels[chan_num].sram_channels;
397
398 mask = cx_read(channel->int_msk);
399 if (0 == (status & mask))
400 return handled;
401
402 cx_write(channel->int_stat, status);
403
404
405 if (status & (1 << 16)) {
406 pr_warn("%s, %s: video risc op code error\n",
407 dev->name, channel->name);
408 cx_clear(channel->dma_ctl, 0x11);
409 cx25821_sram_channel_dump(dev, channel);
410 }
411
412
413 if (status & FLD_VID_DST_RISC1) {
414 spin_lock(&dev->slock);
415 count = cx_read(channel->gpcnt);
416 cx25821_video_wakeup(dev,
417 &dev->channels[channel->i].vidq, count);
418 spin_unlock(&dev->slock);
419 handled++;
420 }
421
422
423 if (status & 0x10) {
424 dprintk(2, "stopper video\n");
425 spin_lock(&dev->slock);
426 cx25821_restart_video_queue(dev,
427 &dev->channels[channel->i].vidq,
428 channel);
429 spin_unlock(&dev->slock);
430 handled++;
431 }
432 return handled;
433}
434
435void cx25821_videoioctl_unregister(struct cx25821_dev *dev)
436{
437 if (dev->ioctl_dev) {
438 if (video_is_registered(dev->ioctl_dev))
439 video_unregister_device(dev->ioctl_dev);
440 else
441 video_device_release(dev->ioctl_dev);
442
443 dev->ioctl_dev = NULL;
444 }
445}
446
447void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num)
448{
449 cx_clear(PCI_INT_MSK, 1);
450
451 if (dev->channels[chan_num].video_dev) {
452 if (video_is_registered(dev->channels[chan_num].video_dev))
453 video_unregister_device(
454 dev->channels[chan_num].video_dev);
455 else
456 video_device_release(
457 dev->channels[chan_num].video_dev);
458
459 dev->channels[chan_num].video_dev = NULL;
460
461 btcx_riscmem_free(dev->pci,
462 &dev->channels[chan_num].vidq.stopper);
463
464 pr_warn("device %d released!\n", chan_num);
465 }
466
467}
468
469int cx25821_video_register(struct cx25821_dev *dev)
470{
471 int err;
472 int i;
473
474 struct video_device cx25821_video_device = {
475 .name = "cx25821-video",
476 .fops = &video_fops,
477 .minor = -1,
478 .ioctl_ops = &video_ioctl_ops,
479 .tvnorms = CX25821_NORMS,
480 .current_norm = V4L2_STD_NTSC_M,
481 };
482
483 spin_lock_init(&dev->slock);
484
485 for (i = 0; i < MAX_VID_CHANNEL_NUM - 1; ++i) {
486 cx25821_init_controls(dev, i);
487
488 cx25821_risc_stopper(dev->pci,
489 &dev->channels[i].vidq.stopper,
490 dev->channels[i].sram_channels->dma_ctl,
491 0x11, 0);
492
493 dev->channels[i].sram_channels = &cx25821_sram_channels[i];
494 dev->channels[i].video_dev = NULL;
495 dev->channels[i].resources = 0;
496
497 cx_write(dev->channels[i].sram_channels->int_stat,
498 0xffffffff);
499
500 INIT_LIST_HEAD(&dev->channels[i].vidq.active);
501 INIT_LIST_HEAD(&dev->channels[i].vidq.queued);
502
503 dev->channels[i].timeout_data.dev = dev;
504 dev->channels[i].timeout_data.channel =
505 &cx25821_sram_channels[i];
506 dev->channels[i].vidq.timeout.function =
507 cx25821_vid_timeout;
508 dev->channels[i].vidq.timeout.data =
509 (unsigned long)&dev->channels[i].timeout_data;
510 init_timer(&dev->channels[i].vidq.timeout);
511
512
513 dev->channels[i].video_dev = cx25821_vdev_init(dev,
514 dev->pci, &cx25821_video_device, "video");
515
516 err = video_register_device(dev->channels[i].video_dev,
517 VFL_TYPE_GRABBER, video_nr[dev->nr]);
518
519 if (err < 0)
520 goto fail_unreg;
521
522 }
523
524
525 cx_set(PCI_INT_MSK, 0xff);
526
527
528 mutex_lock(&dev->lock);
529#ifdef TUNER_FLAG
530 dev->tvnorm = cx25821_video_device.current_norm;
531 cx25821_set_tvnorm(dev, dev->tvnorm);
532#endif
533 mutex_unlock(&dev->lock);
534
535
536 return 0;
537
538fail_unreg:
539 cx25821_video_unregister(dev, i);
540 return err;
541}
542
543int cx25821_buffer_setup(struct videobuf_queue *q, unsigned int *count,
544 unsigned int *size)
545{
546 struct cx25821_fh *fh = q->priv_data;
547
548 *size = fh->fmt->depth * fh->width * fh->height >> 3;
549
550 if (0 == *count)
551 *count = 32;
552
553 if (*size * *count > vid_limit * 1024 * 1024)
554 *count = (vid_limit * 1024 * 1024) / *size;
555
556 return 0;
557}
558
559int cx25821_buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
560 enum v4l2_field field)
561{
562 struct cx25821_fh *fh = q->priv_data;
563 struct cx25821_dev *dev = fh->dev;
564 struct cx25821_buffer *buf =
565 container_of(vb, struct cx25821_buffer, vb);
566 int rc, init_buffer = 0;
567 u32 line0_offset, line1_offset;
568 struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
569 int bpl_local = LINE_SIZE_D1;
570 int channel_opened = fh->channel_id;
571
572 BUG_ON(NULL == fh->fmt);
573 if (fh->width < 48 || fh->width > 720 ||
574 fh->height < 32 || fh->height > 576)
575 return -EINVAL;
576
577 buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
578
579 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
580 return -EINVAL;
581
582 if (buf->fmt != fh->fmt ||
583 buf->vb.width != fh->width ||
584 buf->vb.height != fh->height || buf->vb.field != field) {
585 buf->fmt = fh->fmt;
586 buf->vb.width = fh->width;
587 buf->vb.height = fh->height;
588 buf->vb.field = field;
589 init_buffer = 1;
590 }
591
592 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
593 init_buffer = 1;
594 rc = videobuf_iolock(q, &buf->vb, NULL);
595 if (0 != rc) {
596 printk(KERN_DEBUG pr_fmt("videobuf_iolock failed!\n"));
597 goto fail;
598 }
599 }
600
601 dprintk(1, "init_buffer=%d\n", init_buffer);
602
603 if (init_buffer) {
604
605 channel_opened = dev->channel_opened;
606 channel_opened = (channel_opened < 0
607 || channel_opened > 7) ? 7 : channel_opened;
608
609 if (dev->channels[channel_opened]
610 .pixel_formats == PIXEL_FRMT_411)
611 buf->bpl = (buf->fmt->depth * buf->vb.width) >> 3;
612 else
613 buf->bpl = (buf->fmt->depth >> 3) * (buf->vb.width);
614
615 if (dev->channels[channel_opened]
616 .pixel_formats == PIXEL_FRMT_411) {
617 bpl_local = buf->bpl;
618 } else {
619 bpl_local = buf->bpl;
620
621 if (channel_opened >= 0 && channel_opened <= 7) {
622 if (dev->channels[channel_opened]
623 .use_cif_resolution) {
624 if (dev->tvnorm & V4L2_STD_PAL_BG
625 || dev->tvnorm & V4L2_STD_PAL_DK)
626 bpl_local = 352 << 1;
627 else
628 bpl_local =
629 dev->channels[channel_opened].
630 cif_width <<
631 1;
632 }
633 }
634 }
635
636 switch (buf->vb.field) {
637 case V4L2_FIELD_TOP:
638 cx25821_risc_buffer(dev->pci, &buf->risc,
639 dma->sglist, 0, UNSET,
640 buf->bpl, 0, buf->vb.height);
641 break;
642 case V4L2_FIELD_BOTTOM:
643 cx25821_risc_buffer(dev->pci, &buf->risc,
644 dma->sglist, UNSET, 0,
645 buf->bpl, 0, buf->vb.height);
646 break;
647 case V4L2_FIELD_INTERLACED:
648
649 line0_offset = 0;
650 line1_offset = buf->bpl;
651 dprintk(1, "top field first\n");
652
653 cx25821_risc_buffer(dev->pci, &buf->risc,
654 dma->sglist, line0_offset,
655 bpl_local, bpl_local, bpl_local,
656 buf->vb.height >> 1);
657 break;
658 case V4L2_FIELD_SEQ_TB:
659 cx25821_risc_buffer(dev->pci, &buf->risc,
660 dma->sglist,
661 0, buf->bpl * (buf->vb.height >> 1),
662 buf->bpl, 0, buf->vb.height >> 1);
663 break;
664 case V4L2_FIELD_SEQ_BT:
665 cx25821_risc_buffer(dev->pci, &buf->risc,
666 dma->sglist,
667 buf->bpl * (buf->vb.height >> 1), 0,
668 buf->bpl, 0, buf->vb.height >> 1);
669 break;
670 default:
671 BUG();
672 }
673 }
674
675 dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
676 buf, buf->vb.i, fh->width, fh->height, fh->fmt->depth,
677 fh->fmt->name, (unsigned long)buf->risc.dma);
678
679 buf->vb.state = VIDEOBUF_PREPARED;
680
681 return 0;
682
683 fail:
684 cx25821_free_buffer(q, buf);
685 return rc;
686}
687
688void cx25821_buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
689{
690 struct cx25821_buffer *buf =
691 container_of(vb, struct cx25821_buffer, vb);
692
693 cx25821_free_buffer(q, buf);
694}
695
696struct videobuf_queue *get_queue(struct cx25821_fh *fh)
697{
698 switch (fh->type) {
699 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
700 return &fh->vidq;
701 default:
702 BUG();
703 return NULL;
704 }
705}
706
707int cx25821_get_resource(struct cx25821_fh *fh, int resource)
708{
709 switch (fh->type) {
710 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
711 return resource;
712 default:
713 BUG();
714 return 0;
715 }
716}
717
718int cx25821_video_mmap(struct file *file, struct vm_area_struct *vma)
719{
720 struct cx25821_fh *fh = file->private_data;
721
722 return videobuf_mmap_mapper(get_queue(fh), vma);
723}
724
725
726static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
727{
728 struct cx25821_buffer *buf =
729 container_of(vb, struct cx25821_buffer, vb);
730 struct cx25821_buffer *prev;
731 struct cx25821_fh *fh = vq->priv_data;
732 struct cx25821_dev *dev = fh->dev;
733 struct cx25821_dmaqueue *q = &dev->channels[fh->channel_id].vidq;
734
735
736 buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
737 buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
738 buf->risc.jmp[2] = cpu_to_le32(0);
739
740 dprintk(2, "jmp to stopper (0x%x)\n", buf->risc.jmp[1]);
741
742 if (!list_empty(&q->queued)) {
743 list_add_tail(&buf->vb.queue, &q->queued);
744 buf->vb.state = VIDEOBUF_QUEUED;
745 dprintk(2, "[%p/%d] buffer_queue - append to queued\n", buf,
746 buf->vb.i);
747
748 } else if (list_empty(&q->active)) {
749 list_add_tail(&buf->vb.queue, &q->active);
750 cx25821_start_video_dma(dev, q, buf,
751 dev->channels[fh->channel_id].
752 sram_channels);
753 buf->vb.state = VIDEOBUF_ACTIVE;
754 buf->count = q->count++;
755 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
756 dprintk(2,
757 "[%p/%d] buffer_queue - first active, buf cnt = %d, \
758 q->count = %d\n",
759 buf, buf->vb.i, buf->count, q->count);
760 } else {
761 prev =
762 list_entry(q->active.prev, struct cx25821_buffer, vb.queue);
763 if (prev->vb.width == buf->vb.width
764 && prev->vb.height == buf->vb.height
765 && prev->fmt == buf->fmt) {
766 list_add_tail(&buf->vb.queue, &q->active);
767 buf->vb.state = VIDEOBUF_ACTIVE;
768 buf->count = q->count++;
769 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
770
771
772 prev->risc.jmp[2] = cpu_to_le32(0);
773 dprintk(2,
774 "[%p/%d] buffer_queue - append to active, \
775 buf->count=%d\n",
776 buf, buf->vb.i, buf->count);
777
778 } else {
779 list_add_tail(&buf->vb.queue, &q->queued);
780 buf->vb.state = VIDEOBUF_QUEUED;
781 dprintk(2, "[%p/%d] buffer_queue - first queued\n", buf,
782 buf->vb.i);
783 }
784 }
785
786 if (list_empty(&q->active))
787 dprintk(2, "active queue empty!\n");
788}
789
790static struct videobuf_queue_ops cx25821_video_qops = {
791 .buf_setup = cx25821_buffer_setup,
792 .buf_prepare = cx25821_buffer_prepare,
793 .buf_queue = buffer_queue,
794 .buf_release = cx25821_buffer_release,
795};
796
797static int video_open(struct file *file)
798{
799 struct video_device *vdev = video_devdata(file);
800 struct cx25821_dev *h, *dev = video_drvdata(file);
801 struct cx25821_fh *fh;
802 struct list_head *list;
803 int minor = video_devdata(file)->minor;
804 enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
805 u32 pix_format;
806 int ch_id = 0;
807 int i;
808
809 dprintk(1, "open dev=%s type=%s\n",
810 video_device_node_name(vdev),
811 v4l2_type_names[type]);
812
813
814 fh = kzalloc(sizeof(*fh), GFP_KERNEL);
815 if (NULL == fh)
816 return -ENOMEM;
817
818 lock_kernel();
819
820 list_for_each(list, &cx25821_devlist)
821 {
822 h = list_entry(list, struct cx25821_dev, devlist);
823
824 for (i = 0; i < MAX_VID_CHANNEL_NUM; i++) {
825 if (h->channels[i].video_dev &&
826 h->channels[i].video_dev->minor == minor) {
827 dev = h;
828 ch_id = i;
829 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
830 }
831 }
832 }
833
834 if (NULL == dev) {
835 unlock_kernel();
836 return -ENODEV;
837 }
838
839 file->private_data = fh;
840 fh->dev = dev;
841 fh->type = type;
842 fh->width = 720;
843 fh->channel_id = ch_id;
844
845 if (dev->tvnorm & V4L2_STD_PAL_BG || dev->tvnorm & V4L2_STD_PAL_DK)
846 fh->height = 576;
847 else
848 fh->height = 480;
849
850 dev->channel_opened = fh->channel_id;
851 pix_format =
852 (dev->channels[ch_id].pixel_formats ==
853 PIXEL_FRMT_411) ? V4L2_PIX_FMT_Y41P : V4L2_PIX_FMT_YUYV;
854 fh->fmt = cx25821_format_by_fourcc(pix_format);
855
856 v4l2_prio_open(&dev->channels[ch_id].prio, &fh->prio);
857
858 videobuf_queue_sg_init(&fh->vidq, &cx25821_video_qops,
859 &dev->pci->dev, &dev->slock,
860 V4L2_BUF_TYPE_VIDEO_CAPTURE,
861 V4L2_FIELD_INTERLACED,
862 sizeof(struct cx25821_buffer), fh, NULL);
863
864 dprintk(1, "post videobuf_queue_init()\n");
865 unlock_kernel();
866
867 return 0;
868}
869
870static ssize_t video_read(struct file *file, char __user * data, size_t count,
871 loff_t *ppos)
872{
873 struct cx25821_fh *fh = file->private_data;
874
875 switch (fh->type) {
876 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
877 if (cx25821_res_locked(fh, RESOURCE_VIDEO0))
878 return -EBUSY;
879
880 return videobuf_read_one(&fh->vidq, data, count, ppos,
881 file->f_flags & O_NONBLOCK);
882
883 default:
884 BUG();
885 return 0;
886 }
887}
888
889static unsigned int video_poll(struct file *file,
890 struct poll_table_struct *wait)
891{
892 struct cx25821_fh *fh = file->private_data;
893 struct cx25821_buffer *buf;
894
895 if (cx25821_res_check(fh, RESOURCE_VIDEO0)) {
896
897 if (list_empty(&fh->vidq.stream))
898 return POLLERR;
899 buf = list_entry(fh->vidq.stream.next,
900 struct cx25821_buffer, vb.stream);
901 } else {
902
903 buf = (struct cx25821_buffer *)fh->vidq.read_buf;
904 if (NULL == buf)
905 return POLLERR;
906 }
907
908 poll_wait(file, &buf->vb.done, wait);
909 if (buf->vb.state == VIDEOBUF_DONE || buf->vb.state == VIDEOBUF_ERROR) {
910 if (buf->vb.state == VIDEOBUF_DONE) {
911 struct cx25821_dev *dev = fh->dev;
912
913 if (dev && dev->channels[fh->channel_id]
914 .use_cif_resolution) {
915 u8 cam_id = *((char *)buf->vb.baddr + 3);
916 memcpy((char *)buf->vb.baddr,
917 (char *)buf->vb.baddr + (fh->width * 2),
918 (fh->width * 2));
919 *((char *)buf->vb.baddr + 3) = cam_id;
920 }
921 }
922
923 return POLLIN | POLLRDNORM;
924 }
925
926 return 0;
927}
928
929static int video_release(struct file *file)
930{
931 struct cx25821_fh *fh = file->private_data;
932 struct cx25821_dev *dev = fh->dev;
933
934
935 cx_write(channel0->dma_ctl, 0);
936
937
938 if (cx25821_res_check(fh, RESOURCE_VIDEO0)) {
939 videobuf_queue_cancel(&fh->vidq);
940 cx25821_res_free(dev, fh, RESOURCE_VIDEO0);
941 }
942
943 if (fh->vidq.read_buf) {
944 cx25821_buffer_release(&fh->vidq, fh->vidq.read_buf);
945 kfree(fh->vidq.read_buf);
946 }
947
948 videobuf_mmap_free(&fh->vidq);
949
950 v4l2_prio_close(&dev->channels[fh->channel_id].prio, fh->prio);
951 file->private_data = NULL;
952 kfree(fh);
953
954 return 0;
955}
956
957static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
958{
959 struct cx25821_fh *fh = priv;
960 struct cx25821_dev *dev = fh->dev;
961
962 if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
963 return -EINVAL;
964
965 if (unlikely(i != fh->type))
966 return -EINVAL;
967
968 if (unlikely(!cx25821_res_get(dev, fh,
969 cx25821_get_resource(fh, RESOURCE_VIDEO0))))
970 return -EBUSY;
971
972 return videobuf_streamon(get_queue(fh));
973}
974
975static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
976{
977 struct cx25821_fh *fh = priv;
978 struct cx25821_dev *dev = fh->dev;
979 int err, res;
980
981 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
982 return -EINVAL;
983 if (i != fh->type)
984 return -EINVAL;
985
986 res = cx25821_get_resource(fh, RESOURCE_VIDEO0);
987 err = videobuf_streamoff(get_queue(fh));
988 if (err < 0)
989 return err;
990 cx25821_res_free(dev, fh, res);
991 return 0;
992}
993
994static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
995 struct v4l2_format *f)
996{
997 struct cx25821_fh *fh = priv;
998 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
999 struct v4l2_mbus_framefmt mbus_fmt;
1000 int err;
1001 int pix_format = PIXEL_FRMT_422;
1002
1003 if (fh) {
1004 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1005 .prio, fh->prio);
1006 if (0 != err)
1007 return err;
1008 }
1009
1010 dprintk(2, "%s()\n", __func__);
1011 err = cx25821_vidioc_try_fmt_vid_cap(file, priv, f);
1012
1013 if (0 != err)
1014 return err;
1015
1016 fh->fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
1017 fh->vidq.field = f->fmt.pix.field;
1018
1019
1020 if (cx25821_is_valid_width(f->fmt.pix.width, dev->tvnorm))
1021 fh->width = f->fmt.pix.width;
1022
1023 if (cx25821_is_valid_height(f->fmt.pix.height, dev->tvnorm))
1024 fh->height = f->fmt.pix.height;
1025
1026 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_Y41P)
1027 pix_format = PIXEL_FRMT_411;
1028 else if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV)
1029 pix_format = PIXEL_FRMT_422;
1030 else
1031 return -EINVAL;
1032
1033 cx25821_set_pixel_format(dev, SRAM_CH00, pix_format);
1034
1035
1036 if (fh->width == 320 || fh->width == 352)
1037 dev->channels[fh->channel_id].use_cif_resolution = 1;
1038 else
1039 dev->channels[fh->channel_id].use_cif_resolution = 0;
1040
1041 dev->channels[fh->channel_id].cif_width = fh->width;
1042 medusa_set_resolution(dev, fh->width, SRAM_CH00);
1043
1044 dprintk(2, "%s(): width=%d height=%d field=%d\n", __func__, fh->width,
1045 fh->height, fh->vidq.field);
1046 v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
1047 cx25821_call_all(dev, video, s_mbus_fmt, &mbus_fmt);
1048
1049 return 0;
1050}
1051
1052static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1053{
1054 int ret_val = 0;
1055 struct cx25821_fh *fh = priv;
1056 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1057
1058 ret_val = videobuf_dqbuf(get_queue(fh), p, file->f_flags & O_NONBLOCK);
1059
1060 p->sequence = dev->channels[fh->channel_id].vidq.count;
1061
1062 return ret_val;
1063}
1064
1065static int vidioc_log_status(struct file *file, void *priv)
1066{
1067 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1068 struct cx25821_fh *fh = priv;
1069 char name[32 + 2];
1070
1071 struct sram_channel *sram_ch = dev->channels[fh->channel_id]
1072 .sram_channels;
1073 u32 tmp = 0;
1074
1075 snprintf(name, sizeof(name), "%s/2", dev->name);
1076 pr_info("%s/2: ============ START LOG STATUS ============\n",
1077 dev->name);
1078 cx25821_call_all(dev, core, log_status);
1079 tmp = cx_read(sram_ch->dma_ctl);
1080 pr_info("Video input 0 is %s\n",
1081 (tmp & 0x11) ? "streaming" : "stopped");
1082 pr_info("%s/2: ============= END LOG STATUS =============\n",
1083 dev->name);
1084 return 0;
1085}
1086
1087static int vidioc_s_ctrl(struct file *file, void *priv,
1088 struct v4l2_control *ctl)
1089{
1090 struct cx25821_fh *fh = priv;
1091 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1092 int err;
1093
1094 if (fh) {
1095 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1096 .prio, fh->prio);
1097 if (0 != err)
1098 return err;
1099 }
1100
1101 return cx25821_set_control(dev, ctl, fh->channel_id);
1102}
1103
1104
1105int cx25821_vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f)
1106{
1107 struct cx25821_fh *fh = priv;
1108
1109 f->fmt.pix.width = fh->width;
1110 f->fmt.pix.height = fh->height;
1111 f->fmt.pix.field = fh->vidq.field;
1112 f->fmt.pix.pixelformat = fh->fmt->fourcc;
1113 f->fmt.pix.bytesperline = (f->fmt.pix.width * fh->fmt->depth) >> 3;
1114 f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
1115
1116 return 0;
1117}
1118
1119int cx25821_vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f)
1120{
1121 struct cx25821_fmt *fmt;
1122 enum v4l2_field field;
1123 unsigned int maxw, maxh;
1124
1125 fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
1126 if (NULL == fmt)
1127 return -EINVAL;
1128
1129 field = f->fmt.pix.field;
1130 maxw = 720;
1131 maxh = 576;
1132
1133 if (V4L2_FIELD_ANY == field) {
1134 field = (f->fmt.pix.height > maxh / 2)
1135 ? V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP;
1136 }
1137
1138 switch (field) {
1139 case V4L2_FIELD_TOP:
1140 case V4L2_FIELD_BOTTOM:
1141 maxh = maxh / 2;
1142 break;
1143 case V4L2_FIELD_INTERLACED:
1144 break;
1145 default:
1146 return -EINVAL;
1147 }
1148
1149 f->fmt.pix.field = field;
1150 if (f->fmt.pix.height < 32)
1151 f->fmt.pix.height = 32;
1152 if (f->fmt.pix.height > maxh)
1153 f->fmt.pix.height = maxh;
1154 if (f->fmt.pix.width < 48)
1155 f->fmt.pix.width = 48;
1156 if (f->fmt.pix.width > maxw)
1157 f->fmt.pix.width = maxw;
1158 f->fmt.pix.width &= ~0x03;
1159 f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3;
1160 f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
1161
1162 return 0;
1163}
1164
1165int cx25821_vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap)
1166{
1167 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1168
1169 strcpy(cap->driver, "cx25821");
1170 strlcpy(cap->card, cx25821_boards[dev->board].name, sizeof(cap->card));
1171 sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1172 cap->version = CX25821_VERSION_CODE;
1173 cap->capabilities =
1174 V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
1175 if (UNSET != dev->tuner_type)
1176 cap->capabilities |= V4L2_CAP_TUNER;
1177 return 0;
1178}
1179
1180int cx25821_vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1181 struct v4l2_fmtdesc *f)
1182{
1183 if (unlikely(f->index >= ARRAY_SIZE(formats)))
1184 return -EINVAL;
1185
1186 strlcpy(f->description, formats[f->index].name, sizeof(f->description));
1187 f->pixelformat = formats[f->index].fourcc;
1188
1189 return 0;
1190}
1191
1192int cx25821_vidioc_reqbufs(struct file *file, void *priv, struct v4l2_requestbuffers *p)
1193{
1194 struct cx25821_fh *fh = priv;
1195 return videobuf_reqbufs(get_queue(fh), p);
1196}
1197
1198int cx25821_vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *p)
1199{
1200 struct cx25821_fh *fh = priv;
1201 return videobuf_querybuf(get_queue(fh), p);
1202}
1203
1204int cx25821_vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1205{
1206 struct cx25821_fh *fh = priv;
1207 return videobuf_qbuf(get_queue(fh), p);
1208}
1209
1210int cx25821_vidioc_g_priority(struct file *file, void *f, enum v4l2_priority *p)
1211{
1212 struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev;
1213 struct cx25821_fh *fh = f;
1214
1215 *p = v4l2_prio_max(&dev->channels[fh->channel_id].prio);
1216
1217 return 0;
1218}
1219
1220int cx25821_vidioc_s_priority(struct file *file, void *f, enum v4l2_priority prio)
1221{
1222 struct cx25821_fh *fh = f;
1223 struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev;
1224
1225 return v4l2_prio_change(&dev->channels[fh->channel_id]
1226 .prio, &fh->prio, prio);
1227}
1228
1229#ifdef TUNER_FLAG
1230int cx25821_vidioc_s_std(struct file *file, void *priv, v4l2_std_id * tvnorms)
1231{
1232 struct cx25821_fh *fh = priv;
1233 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1234 int err;
1235
1236 dprintk(1, "%s()\n", __func__);
1237
1238 if (fh) {
1239 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1240 .prio, fh->prio);
1241 if (0 != err)
1242 return err;
1243 }
1244
1245 if (dev->tvnorm == *tvnorms) {
1246 return 0;
1247 }
1248
1249 mutex_lock(&dev->lock);
1250 cx25821_set_tvnorm(dev, *tvnorms);
1251 mutex_unlock(&dev->lock);
1252
1253 medusa_set_videostandard(dev);
1254
1255 return 0;
1256}
1257#endif
1258
1259int cx25821_enum_input(struct cx25821_dev *dev, struct v4l2_input *i)
1260{
1261 static const char *iname[] = {
1262 [CX25821_VMUX_COMPOSITE] = "Composite",
1263 [CX25821_VMUX_SVIDEO] = "S-Video",
1264 [CX25821_VMUX_DEBUG] = "for debug only",
1265 };
1266 unsigned int n;
1267 dprintk(1, "%s()\n", __func__);
1268
1269 n = i->index;
1270 if (n >= 2)
1271 return -EINVAL;
1272
1273 if (0 == INPUT(n)->type)
1274 return -EINVAL;
1275
1276 i->type = V4L2_INPUT_TYPE_CAMERA;
1277 strcpy(i->name, iname[INPUT(n)->type]);
1278
1279 i->std = CX25821_NORMS;
1280 return 0;
1281}
1282
1283int cx25821_vidioc_enum_input(struct file *file, void *priv, struct v4l2_input *i)
1284{
1285 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1286 dprintk(1, "%s()\n", __func__);
1287 return cx25821_enum_input(dev, i);
1288}
1289
1290int cx25821_vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1291{
1292 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1293
1294 *i = dev->input;
1295 dprintk(1, "%s(): returns %d\n", __func__, *i);
1296 return 0;
1297}
1298
1299int cx25821_vidioc_s_input(struct file *file, void *priv, unsigned int i)
1300{
1301 struct cx25821_fh *fh = priv;
1302 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1303 int err;
1304
1305 dprintk(1, "%s(%d)\n", __func__, i);
1306
1307 if (fh) {
1308 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1309 .prio, fh->prio);
1310 if (0 != err)
1311 return err;
1312 }
1313
1314 if (i > 2) {
1315 dprintk(1, "%s(): -EINVAL\n", __func__);
1316 return -EINVAL;
1317 }
1318
1319 mutex_lock(&dev->lock);
1320 cx25821_video_mux(dev, i);
1321 mutex_unlock(&dev->lock);
1322 return 0;
1323}
1324
1325#ifdef TUNER_FLAG
1326int cx25821_vidioc_g_frequency(struct file *file, void *priv, struct v4l2_frequency *f)
1327{
1328 struct cx25821_fh *fh = priv;
1329 struct cx25821_dev *dev = fh->dev;
1330
1331 f->frequency = dev->freq;
1332
1333 cx25821_call_all(dev, tuner, g_frequency, f);
1334
1335 return 0;
1336}
1337
1338int cx25821_set_freq(struct cx25821_dev *dev, struct v4l2_frequency *f)
1339{
1340 mutex_lock(&dev->lock);
1341 dev->freq = f->frequency;
1342
1343 cx25821_call_all(dev, tuner, s_frequency, f);
1344
1345
1346 msleep(10);
1347
1348 mutex_unlock(&dev->lock);
1349
1350 return 0;
1351}
1352
1353int cx25821_vidioc_s_frequency(struct file *file, void *priv, struct v4l2_frequency *f)
1354{
1355 struct cx25821_fh *fh = priv;
1356 struct cx25821_dev *dev;
1357 int err;
1358
1359 if (fh) {
1360 dev = fh->dev;
1361 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1362 .prio, fh->prio);
1363 if (0 != err)
1364 return err;
1365 } else {
1366 pr_err("Invalid fh pointer!\n");
1367 return -EINVAL;
1368 }
1369
1370 return cx25821_set_freq(dev, f);
1371}
1372#endif
1373
1374#ifdef CONFIG_VIDEO_ADV_DEBUG
1375int cx25821_vidioc_g_register(struct file *file, void *fh,
1376 struct v4l2_dbg_register *reg)
1377{
1378 struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev;
1379
1380 if (!v4l2_chip_match_host(®->match))
1381 return -EINVAL;
1382
1383 cx25821_call_all(dev, core, g_register, reg);
1384
1385 return 0;
1386}
1387
1388int cx25821_vidioc_s_register(struct file *file, void *fh,
1389 struct v4l2_dbg_register *reg)
1390{
1391 struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev;
1392
1393 if (!v4l2_chip_match_host(®->match))
1394 return -EINVAL;
1395
1396 cx25821_call_all(dev, core, s_register, reg);
1397
1398 return 0;
1399}
1400
1401#endif
1402
1403#ifdef TUNER_FLAG
1404int cx25821_vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1405{
1406 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1407
1408 if (unlikely(UNSET == dev->tuner_type))
1409 return -EINVAL;
1410 if (0 != t->index)
1411 return -EINVAL;
1412
1413 strcpy(t->name, "Television");
1414 t->type = V4L2_TUNER_ANALOG_TV;
1415 t->capability = V4L2_TUNER_CAP_NORM;
1416 t->rangehigh = 0xffffffffUL;
1417
1418 t->signal = 0xffff;
1419 return 0;
1420}
1421
1422int cx25821_vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1423{
1424 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1425 struct cx25821_fh *fh = priv;
1426 int err;
1427
1428 if (fh) {
1429 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1430 .prio, fh->prio);
1431 if (0 != err)
1432 return err;
1433 }
1434
1435 dprintk(1, "%s()\n", __func__);
1436 if (UNSET == dev->tuner_type)
1437 return -EINVAL;
1438 if (0 != t->index)
1439 return -EINVAL;
1440
1441 return 0;
1442}
1443
1444#endif
1445
1446static const struct v4l2_queryctrl no_ctl = {
1447 .name = "42",
1448 .flags = V4L2_CTRL_FLAG_DISABLED,
1449};
1450
1451static struct v4l2_queryctrl cx25821_ctls[] = {
1452
1453 {
1454 .id = V4L2_CID_BRIGHTNESS,
1455 .name = "Brightness",
1456 .minimum = 0,
1457 .maximum = 10000,
1458 .step = 1,
1459 .default_value = 6200,
1460 .type = V4L2_CTRL_TYPE_INTEGER,
1461 }, {
1462 .id = V4L2_CID_CONTRAST,
1463 .name = "Contrast",
1464 .minimum = 0,
1465 .maximum = 10000,
1466 .step = 1,
1467 .default_value = 5000,
1468 .type = V4L2_CTRL_TYPE_INTEGER,
1469 }, {
1470 .id = V4L2_CID_SATURATION,
1471 .name = "Saturation",
1472 .minimum = 0,
1473 .maximum = 10000,
1474 .step = 1,
1475 .default_value = 5000,
1476 .type = V4L2_CTRL_TYPE_INTEGER,
1477 }, {
1478 .id = V4L2_CID_HUE,
1479 .name = "Hue",
1480 .minimum = 0,
1481 .maximum = 10000,
1482 .step = 1,
1483 .default_value = 5000,
1484 .type = V4L2_CTRL_TYPE_INTEGER,
1485 }
1486};
1487static const int CX25821_CTLS = ARRAY_SIZE(cx25821_ctls);
1488
1489static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl)
1490{
1491 int i;
1492
1493 if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1)
1494 return -EINVAL;
1495 for (i = 0; i < CX25821_CTLS; i++)
1496 if (cx25821_ctls[i].id == qctrl->id)
1497 break;
1498 if (i == CX25821_CTLS) {
1499 *qctrl = no_ctl;
1500 return 0;
1501 }
1502 *qctrl = cx25821_ctls[i];
1503 return 0;
1504}
1505
1506int cx25821_vidioc_queryctrl(struct file *file, void *priv,
1507 struct v4l2_queryctrl *qctrl)
1508{
1509 return cx25821_ctrl_query(qctrl);
1510}
1511
1512
1513
1514
1515static const struct v4l2_queryctrl *ctrl_by_id(unsigned int id)
1516{
1517 unsigned int i;
1518
1519 for (i = 0; i < CX25821_CTLS; i++)
1520 if (cx25821_ctls[i].id == id)
1521 return cx25821_ctls + i;
1522 return NULL;
1523}
1524
1525int cx25821_vidioc_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctl)
1526{
1527 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1528 struct cx25821_fh *fh = priv;
1529
1530 const struct v4l2_queryctrl *ctrl;
1531
1532 ctrl = ctrl_by_id(ctl->id);
1533
1534 if (NULL == ctrl)
1535 return -EINVAL;
1536 switch (ctl->id) {
1537 case V4L2_CID_BRIGHTNESS:
1538 ctl->value = dev->channels[fh->channel_id].ctl_bright;
1539 break;
1540 case V4L2_CID_HUE:
1541 ctl->value = dev->channels[fh->channel_id].ctl_hue;
1542 break;
1543 case V4L2_CID_CONTRAST:
1544 ctl->value = dev->channels[fh->channel_id].ctl_contrast;
1545 break;
1546 case V4L2_CID_SATURATION:
1547 ctl->value = dev->channels[fh->channel_id].ctl_saturation;
1548 break;
1549 }
1550 return 0;
1551}
1552
1553int cx25821_set_control(struct cx25821_dev *dev,
1554 struct v4l2_control *ctl, int chan_num)
1555{
1556 int err;
1557 const struct v4l2_queryctrl *ctrl;
1558
1559 err = -EINVAL;
1560
1561 ctrl = ctrl_by_id(ctl->id);
1562
1563 if (NULL == ctrl)
1564 return err;
1565
1566 switch (ctrl->type) {
1567 case V4L2_CTRL_TYPE_BOOLEAN:
1568 case V4L2_CTRL_TYPE_MENU:
1569 case V4L2_CTRL_TYPE_INTEGER:
1570 if (ctl->value < ctrl->minimum)
1571 ctl->value = ctrl->minimum;
1572 if (ctl->value > ctrl->maximum)
1573 ctl->value = ctrl->maximum;
1574 break;
1575 default:
1576 ;
1577 };
1578
1579 switch (ctl->id) {
1580 case V4L2_CID_BRIGHTNESS:
1581 dev->channels[chan_num].ctl_bright = ctl->value;
1582 medusa_set_brightness(dev, ctl->value, chan_num);
1583 break;
1584 case V4L2_CID_HUE:
1585 dev->channels[chan_num].ctl_hue = ctl->value;
1586 medusa_set_hue(dev, ctl->value, chan_num);
1587 break;
1588 case V4L2_CID_CONTRAST:
1589 dev->channels[chan_num].ctl_contrast = ctl->value;
1590 medusa_set_contrast(dev, ctl->value, chan_num);
1591 break;
1592 case V4L2_CID_SATURATION:
1593 dev->channels[chan_num].ctl_saturation = ctl->value;
1594 medusa_set_saturation(dev, ctl->value, chan_num);
1595 break;
1596 }
1597
1598 err = 0;
1599
1600 return err;
1601}
1602
1603static void cx25821_init_controls(struct cx25821_dev *dev, int chan_num)
1604{
1605 struct v4l2_control ctrl;
1606 int i;
1607 for (i = 0; i < CX25821_CTLS; i++) {
1608 ctrl.id = cx25821_ctls[i].id;
1609 ctrl.value = cx25821_ctls[i].default_value;
1610
1611 cx25821_set_control(dev, &ctrl, chan_num);
1612 }
1613}
1614
1615int cx25821_vidioc_cropcap(struct file *file, void *priv, struct v4l2_cropcap *cropcap)
1616{
1617 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1618
1619 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1620 return -EINVAL;
1621 cropcap->bounds.top = cropcap->bounds.left = 0;
1622 cropcap->bounds.width = 720;
1623 cropcap->bounds.height = dev->tvnorm == V4L2_STD_PAL_BG ? 576 : 480;
1624 cropcap->pixelaspect.numerator =
1625 dev->tvnorm == V4L2_STD_PAL_BG ? 59 : 10;
1626 cropcap->pixelaspect.denominator =
1627 dev->tvnorm == V4L2_STD_PAL_BG ? 54 : 11;
1628 cropcap->defrect = cropcap->bounds;
1629 return 0;
1630}
1631
1632int cx25821_vidioc_s_crop(struct file *file, void *priv, struct v4l2_crop *crop)
1633{
1634 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1635 struct cx25821_fh *fh = priv;
1636 int err;
1637
1638 if (fh) {
1639 err = v4l2_prio_check(&dev->channels[fh->channel_id].
1640 prio, fh->prio);
1641 if (0 != err)
1642 return err;
1643 }
1644
1645 return -EINVAL;
1646}
1647
1648int cx25821_vidioc_g_crop(struct file *file, void *priv, struct v4l2_crop *crop)
1649{
1650
1651 return -EINVAL;
1652}
1653
1654int cx25821_vidioc_querystd(struct file *file, void *priv, v4l2_std_id * norm)
1655{
1656
1657 *norm = CX25821_NORMS;
1658
1659 return 0;
1660}
1661
1662int cx25821_is_valid_width(u32 width, v4l2_std_id tvnorm)
1663{
1664 if (tvnorm == V4L2_STD_PAL_BG) {
1665 if (width == 352 || width == 720)
1666 return 1;
1667 else
1668 return 0;
1669 }
1670
1671 if (tvnorm == V4L2_STD_NTSC_M) {
1672 if (width == 320 || width == 352 || width == 720)
1673 return 1;
1674 else
1675 return 0;
1676 }
1677 return 0;
1678}
1679
1680int cx25821_is_valid_height(u32 height, v4l2_std_id tvnorm)
1681{
1682 if (tvnorm == V4L2_STD_PAL_BG) {
1683 if (height == 576 || height == 288)
1684 return 1;
1685 else
1686 return 0;
1687 }
1688
1689 if (tvnorm == V4L2_STD_NTSC_M) {
1690 if (height == 480 || height == 240)
1691 return 1;
1692 else
1693 return 0;
1694 }
1695
1696 return 0;
1697}
1698
1699static long video_ioctl_upstream9(struct file *file, unsigned int cmd,
1700 unsigned long arg)
1701{
1702 struct cx25821_fh *fh = file->private_data;
1703 struct cx25821_dev *dev = fh->dev;
1704 int command = 0;
1705 struct upstream_user_struct *data_from_user;
1706
1707 data_from_user = (struct upstream_user_struct *)arg;
1708
1709 if (!data_from_user) {
1710 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1711 return 0;
1712 }
1713
1714 command = data_from_user->command;
1715
1716 if (command != UPSTREAM_START_VIDEO &&
1717 command != UPSTREAM_STOP_VIDEO)
1718 return 0;
1719
1720 dev->input_filename = data_from_user->input_filename;
1721 dev->input_audiofilename = data_from_user->input_filename;
1722 dev->vid_stdname = data_from_user->vid_stdname;
1723 dev->pixel_format = data_from_user->pixel_format;
1724 dev->channel_select = data_from_user->channel_select;
1725 dev->command = data_from_user->command;
1726
1727 switch (command) {
1728 case UPSTREAM_START_VIDEO:
1729 cx25821_start_upstream_video_ch1(dev, data_from_user);
1730 break;
1731
1732 case UPSTREAM_STOP_VIDEO:
1733 cx25821_stop_upstream_video_ch1(dev);
1734 break;
1735 }
1736
1737 return 0;
1738}
1739
1740static long video_ioctl_upstream10(struct file *file, unsigned int cmd,
1741 unsigned long arg)
1742{
1743 struct cx25821_fh *fh = file->private_data;
1744 struct cx25821_dev *dev = fh->dev;
1745 int command = 0;
1746 struct upstream_user_struct *data_from_user;
1747
1748 data_from_user = (struct upstream_user_struct *)arg;
1749
1750 if (!data_from_user) {
1751 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1752 return 0;
1753 }
1754
1755 command = data_from_user->command;
1756
1757 if (command != UPSTREAM_START_VIDEO &&
1758 command != UPSTREAM_STOP_VIDEO)
1759 return 0;
1760
1761 dev->input_filename_ch2 = data_from_user->input_filename;
1762 dev->input_audiofilename = data_from_user->input_filename;
1763 dev->vid_stdname_ch2 = data_from_user->vid_stdname;
1764 dev->pixel_format_ch2 = data_from_user->pixel_format;
1765 dev->channel_select_ch2 = data_from_user->channel_select;
1766 dev->command_ch2 = data_from_user->command;
1767
1768 switch (command) {
1769 case UPSTREAM_START_VIDEO:
1770 cx25821_start_upstream_video_ch2(dev, data_from_user);
1771 break;
1772
1773 case UPSTREAM_STOP_VIDEO:
1774 cx25821_stop_upstream_video_ch2(dev);
1775 break;
1776 }
1777
1778 return 0;
1779}
1780
1781static long video_ioctl_upstream11(struct file *file, unsigned int cmd,
1782 unsigned long arg)
1783{
1784 struct cx25821_fh *fh = file->private_data;
1785 struct cx25821_dev *dev = fh->dev;
1786 int command = 0;
1787 struct upstream_user_struct *data_from_user;
1788
1789 data_from_user = (struct upstream_user_struct *)arg;
1790
1791 if (!data_from_user) {
1792 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1793 return 0;
1794 }
1795
1796 command = data_from_user->command;
1797
1798 if (command != UPSTREAM_START_AUDIO &&
1799 command != UPSTREAM_STOP_AUDIO)
1800 return 0;
1801
1802 dev->input_filename = data_from_user->input_filename;
1803 dev->input_audiofilename = data_from_user->input_filename;
1804 dev->vid_stdname = data_from_user->vid_stdname;
1805 dev->pixel_format = data_from_user->pixel_format;
1806 dev->channel_select = data_from_user->channel_select;
1807 dev->command = data_from_user->command;
1808
1809 switch (command) {
1810 case UPSTREAM_START_AUDIO:
1811 cx25821_start_upstream_audio(dev, data_from_user);
1812 break;
1813
1814 case UPSTREAM_STOP_AUDIO:
1815 cx25821_stop_upstream_audio(dev);
1816 break;
1817 }
1818
1819 return 0;
1820}
1821
1822static long video_ioctl_set(struct file *file, unsigned int cmd,
1823 unsigned long arg)
1824{
1825 struct cx25821_fh *fh = file->private_data;
1826 struct cx25821_dev *dev = fh->dev;
1827 struct downstream_user_struct *data_from_user;
1828 int command;
1829 int width = 720;
1830 int selected_channel = 0, pix_format = 0, i = 0;
1831 int cif_enable = 0, cif_width = 0;
1832 u32 value = 0;
1833
1834 data_from_user = (struct downstream_user_struct *)arg;
1835
1836 if (!data_from_user) {
1837 pr_err("%s(): User data is INVALID. Returning\n", __func__);
1838 return 0;
1839 }
1840
1841 command = data_from_user->command;
1842
1843 if (command != SET_VIDEO_STD && command != SET_PIXEL_FORMAT
1844 && command != ENABLE_CIF_RESOLUTION && command != REG_READ
1845 && command != REG_WRITE && command != MEDUSA_READ
1846 && command != MEDUSA_WRITE) {
1847 return 0;
1848 }
1849
1850 switch (command) {
1851 case SET_VIDEO_STD:
1852 dev->tvnorm =
1853 !strcmp(data_from_user->vid_stdname,
1854 "PAL") ? V4L2_STD_PAL_BG : V4L2_STD_NTSC_M;
1855 medusa_set_videostandard(dev);
1856 break;
1857
1858 case SET_PIXEL_FORMAT:
1859 selected_channel = data_from_user->decoder_select;
1860 pix_format = data_from_user->pixel_format;
1861
1862 if (!(selected_channel <= 7 && selected_channel >= 0)) {
1863 selected_channel -= 4;
1864 selected_channel = selected_channel % 8;
1865 }
1866
1867 if (selected_channel >= 0)
1868 cx25821_set_pixel_format(dev, selected_channel,
1869 pix_format);
1870
1871 break;
1872
1873 case ENABLE_CIF_RESOLUTION:
1874 selected_channel = data_from_user->decoder_select;
1875 cif_enable = data_from_user->cif_resolution_enable;
1876 cif_width = data_from_user->cif_width;
1877
1878 if (cif_enable) {
1879 if (dev->tvnorm & V4L2_STD_PAL_BG
1880 || dev->tvnorm & V4L2_STD_PAL_DK)
1881 width = 352;
1882 else
1883 width = (cif_width == 320
1884 || cif_width == 352) ? cif_width : 320;
1885 }
1886
1887 if (!(selected_channel <= 7 && selected_channel >= 0)) {
1888 selected_channel -= 4;
1889 selected_channel = selected_channel % 8;
1890 }
1891
1892 if (selected_channel <= 7 && selected_channel >= 0) {
1893 dev->channels[selected_channel].
1894 use_cif_resolution = cif_enable;
1895 dev->channels[selected_channel].cif_width = width;
1896 } else {
1897 for (i = 0; i < VID_CHANNEL_NUM; i++) {
1898 dev->channels[i].use_cif_resolution =
1899 cif_enable;
1900 dev->channels[i].cif_width = width;
1901 }
1902 }
1903
1904 medusa_set_resolution(dev, width, selected_channel);
1905 break;
1906 case REG_READ:
1907 data_from_user->reg_data = cx_read(data_from_user->reg_address);
1908 break;
1909 case REG_WRITE:
1910 cx_write(data_from_user->reg_address, data_from_user->reg_data);
1911 break;
1912 case MEDUSA_READ:
1913 value =
1914 cx25821_i2c_read(&dev->i2c_bus[0],
1915 (u16) data_from_user->reg_address,
1916 &data_from_user->reg_data);
1917 break;
1918 case MEDUSA_WRITE:
1919 cx25821_i2c_write(&dev->i2c_bus[0],
1920 (u16) data_from_user->reg_address,
1921 data_from_user->reg_data);
1922 break;
1923 }
1924
1925 return 0;
1926}
1927
1928static long cx25821_video_ioctl(struct file *file,
1929 unsigned int cmd, unsigned long arg)
1930{
1931 int ret = 0;
1932
1933 struct cx25821_fh *fh = file->private_data;
1934
1935
1936 if (fh->channel_id == SRAM_CH09) {
1937 ret = video_ioctl_upstream9(file, cmd, arg);
1938 return ret;
1939 } else if (fh->channel_id == SRAM_CH10) {
1940 ret = video_ioctl_upstream10(file, cmd, arg);
1941 return ret;
1942 } else if (fh->channel_id == SRAM_CH11) {
1943 ret = video_ioctl_upstream11(file, cmd, arg);
1944 ret = video_ioctl_set(file, cmd, arg);
1945 return ret;
1946 }
1947
1948 return video_ioctl2(file, cmd, arg);
1949}
1950
1951
1952static const struct v4l2_file_operations video_fops = {
1953 .owner = THIS_MODULE,
1954 .open = video_open,
1955 .release = video_release,
1956 .read = video_read,
1957 .poll = video_poll,
1958 .mmap = cx25821_video_mmap,
1959 .ioctl = cx25821_video_ioctl,
1960};
1961
1962static const struct v4l2_ioctl_ops video_ioctl_ops = {
1963 .vidioc_querycap = cx25821_vidioc_querycap,
1964 .vidioc_enum_fmt_vid_cap = cx25821_vidioc_enum_fmt_vid_cap,
1965 .vidioc_g_fmt_vid_cap = cx25821_vidioc_g_fmt_vid_cap,
1966 .vidioc_try_fmt_vid_cap = cx25821_vidioc_try_fmt_vid_cap,
1967 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1968 .vidioc_reqbufs = cx25821_vidioc_reqbufs,
1969 .vidioc_querybuf = cx25821_vidioc_querybuf,
1970 .vidioc_qbuf = cx25821_vidioc_qbuf,
1971 .vidioc_dqbuf = vidioc_dqbuf,
1972#ifdef TUNER_FLAG
1973 .vidioc_s_std = cx25821_vidioc_s_std,
1974 .vidioc_querystd = cx25821_vidioc_querystd,
1975#endif
1976 .vidioc_cropcap = cx25821_vidioc_cropcap,
1977 .vidioc_s_crop = cx25821_vidioc_s_crop,
1978 .vidioc_g_crop = cx25821_vidioc_g_crop,
1979 .vidioc_enum_input = cx25821_vidioc_enum_input,
1980 .vidioc_g_input = cx25821_vidioc_g_input,
1981 .vidioc_s_input = cx25821_vidioc_s_input,
1982 .vidioc_g_ctrl = cx25821_vidioc_g_ctrl,
1983 .vidioc_s_ctrl = vidioc_s_ctrl,
1984 .vidioc_queryctrl = cx25821_vidioc_queryctrl,
1985 .vidioc_streamon = vidioc_streamon,
1986 .vidioc_streamoff = vidioc_streamoff,
1987 .vidioc_log_status = vidioc_log_status,
1988 .vidioc_g_priority = cx25821_vidioc_g_priority,
1989 .vidioc_s_priority = cx25821_vidioc_s_priority,
1990#ifdef TUNER_FLAG
1991 .vidioc_g_tuner = cx25821_vidioc_g_tuner,
1992 .vidioc_s_tuner = cx25821_vidioc_s_tuner,
1993 .vidioc_g_frequency = cx25821_vidioc_g_frequency,
1994 .vidioc_s_frequency = cx25821_vidioc_s_frequency,
1995#endif
1996#ifdef CONFIG_VIDEO_ADV_DEBUG
1997 .vidioc_g_register = cx25821_vidioc_g_register,
1998 .vidioc_s_register = cx25821_vidioc_s_register,
1999#endif
2000};
2001
2002struct video_device cx25821_videoioctl_template = {
2003 .name = "cx25821-videoioctl",
2004 .fops = &video_fops,
2005 .ioctl_ops = &video_ioctl_ops,
2006 .tvnorms = CX25821_NORMS,
2007 .current_norm = V4L2_STD_NTSC_M,
2008};
2009
