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cfq-iosched: fix use-after-free of cfqq
[deliverable/linux.git] / drivers / media / video / cx25821 / cx25821-video.c
1 /*
2 * Driver for the Conexant CX25821 PCIe bridge
3 *
4 * Copyright (C) 2009 Conexant Systems Inc.
5 * Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
6 * Based on Steven Toth <stoth@linuxtv.org> cx23885 driver
7 * Parts adapted/taken from Eduardo Moscoso Rubino
8 * Copyright (C) 2009 Eduardo Moscoso Rubino <moscoso@TopoLogica.com>
9 *
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 *
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25 */
26
27 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
28
29 #include "cx25821-video.h"
30
31 MODULE_DESCRIPTION("v4l2 driver module for cx25821 based TV cards");
32 MODULE_AUTHOR("Hiep Huynh <hiep.huynh@conexant.com>");
33 MODULE_LICENSE("GPL");
34
35 static unsigned int video_nr[] = {[0 ... (CX25821_MAXBOARDS - 1)] = UNSET };
36 static unsigned int radio_nr[] = {[0 ... (CX25821_MAXBOARDS - 1)] = UNSET };
37
38 module_param_array(video_nr, int, NULL, 0444);
39 module_param_array(radio_nr, int, NULL, 0444);
40
41 MODULE_PARM_DESC(video_nr, "video device numbers");
42 MODULE_PARM_DESC(radio_nr, "radio device numbers");
43
44 static unsigned int video_debug = VIDEO_DEBUG;
45 module_param(video_debug, int, 0644);
46 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
47
48 static unsigned int irq_debug;
49 module_param(irq_debug, int, 0644);
50 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
51
52 unsigned int vid_limit = 16;
53 module_param(vid_limit, int, 0644);
54 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
55
56 static void cx25821_init_controls(struct cx25821_dev *dev, int chan_num);
57
58 static const struct v4l2_file_operations video_fops;
59 static const struct v4l2_ioctl_ops video_ioctl_ops;
60
61 #define FORMAT_FLAGS_PACKED 0x01
62
63 struct cx25821_fmt formats[] = {
64 {
65 .name = "8 bpp, gray",
66 .fourcc = V4L2_PIX_FMT_GREY,
67 .depth = 8,
68 .flags = FORMAT_FLAGS_PACKED,
69 }, {
70 .name = "4:1:1, packed, Y41P",
71 .fourcc = V4L2_PIX_FMT_Y41P,
72 .depth = 12,
73 .flags = FORMAT_FLAGS_PACKED,
74 }, {
75 .name = "4:2:2, packed, YUYV",
76 .fourcc = V4L2_PIX_FMT_YUYV,
77 .depth = 16,
78 .flags = FORMAT_FLAGS_PACKED,
79 }, {
80 .name = "4:2:2, packed, UYVY",
81 .fourcc = V4L2_PIX_FMT_UYVY,
82 .depth = 16,
83 .flags = FORMAT_FLAGS_PACKED,
84 }, {
85 .name = "4:2:0, YUV",
86 .fourcc = V4L2_PIX_FMT_YUV420,
87 .depth = 12,
88 .flags = FORMAT_FLAGS_PACKED,
89 },
90 };
91
92 int cx25821_get_format_size(void)
93 {
94 return ARRAY_SIZE(formats);
95 }
96
97 struct cx25821_fmt *cx25821_format_by_fourcc(unsigned int fourcc)
98 {
99 unsigned int i;
100
101 if (fourcc == V4L2_PIX_FMT_Y41P || fourcc == V4L2_PIX_FMT_YUV411P)
102 return formats + 1;
103
104 for (i = 0; i < ARRAY_SIZE(formats); i++)
105 if (formats[i].fourcc == fourcc)
106 return formats + i;
107
108 pr_err("%s(0x%08x) NOT FOUND\n", __func__, fourcc);
109 return NULL;
110 }
111
112 void cx25821_dump_video_queue(struct cx25821_dev *dev,
113 struct cx25821_dmaqueue *q)
114 {
115 struct cx25821_buffer *buf;
116 struct list_head *item;
117 dprintk(1, "%s()\n", __func__);
118
119 if (!list_empty(&q->active)) {
120 list_for_each(item, &q->active)
121 buf = list_entry(item, struct cx25821_buffer, vb.queue);
122 }
123
124 if (!list_empty(&q->queued)) {
125 list_for_each(item, &q->queued)
126 buf = list_entry(item, struct cx25821_buffer, vb.queue);
127 }
128
129 }
130
131 void cx25821_video_wakeup(struct cx25821_dev *dev, struct cx25821_dmaqueue *q,
132 u32 count)
133 {
134 struct cx25821_buffer *buf;
135 int bc;
136
137 for (bc = 0;; bc++) {
138 if (list_empty(&q->active)) {
139 dprintk(1, "bc=%d (=0: active empty)\n", bc);
140 break;
141 }
142
143 buf =
144 list_entry(q->active.next, struct cx25821_buffer, vb.queue);
145
146 /* count comes from the hw and it is 16bit wide --
147 * this trick handles wrap-arounds correctly for
148 * up to 32767 buffers in flight... */
149 if ((s16) (count - buf->count) < 0)
150 break;
151
152 do_gettimeofday(&buf->vb.ts);
153 buf->vb.state = VIDEOBUF_DONE;
154 list_del(&buf->vb.queue);
155 wake_up(&buf->vb.done);
156 }
157
158 if (list_empty(&q->active))
159 del_timer(&q->timeout);
160 else
161 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
162 if (bc != 1)
163 pr_err("%s: %d buffers handled (should be 1)\n", __func__, bc);
164 }
165
166 #ifdef TUNER_FLAG
167 int cx25821_set_tvnorm(struct cx25821_dev *dev, v4l2_std_id norm)
168 {
169 dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
170 __func__, (unsigned int)norm, v4l2_norm_to_name(norm));
171
172 dev->tvnorm = norm;
173
174 /* Tell the internal A/V decoder */
175 cx25821_call_all(dev, core, s_std, norm);
176
177 return 0;
178 }
179 #endif
180
181 struct video_device *cx25821_vdev_init(struct cx25821_dev *dev,
182 struct pci_dev *pci,
183 struct video_device *template,
184 char *type)
185 {
186 struct video_device *vfd;
187 dprintk(1, "%s()\n", __func__);
188
189 vfd = video_device_alloc();
190 if (NULL == vfd)
191 return NULL;
192 *vfd = *template;
193 vfd->v4l2_dev = &dev->v4l2_dev;
194 vfd->release = video_device_release;
195 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name, type,
196 cx25821_boards[dev->board].name);
197 video_set_drvdata(vfd, dev);
198 return vfd;
199 }
200
201 /*
202 static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl)
203 {
204 int i;
205
206 if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1)
207 return -EINVAL;
208 for (i = 0; i < CX25821_CTLS; i++)
209 if (cx25821_ctls[i].v.id == qctrl->id)
210 break;
211 if (i == CX25821_CTLS) {
212 *qctrl = no_ctl;
213 return 0;
214 }
215 *qctrl = cx25821_ctls[i].v;
216 return 0;
217 }
218 */
219
220 /* resource management */
221 int cx25821_res_get(struct cx25821_dev *dev, struct cx25821_fh *fh,
222 unsigned int bit)
223 {
224 dprintk(1, "%s()\n", __func__);
225 if (fh->resources & bit)
226 /* have it already allocated */
227 return 1;
228
229 /* is it free? */
230 mutex_lock(&dev->lock);
231 if (dev->channels[fh->channel_id].resources & bit) {
232 /* no, someone else uses it */
233 mutex_unlock(&dev->lock);
234 return 0;
235 }
236 /* it's free, grab it */
237 fh->resources |= bit;
238 dev->channels[fh->channel_id].resources |= bit;
239 dprintk(1, "res: get %d\n", bit);
240 mutex_unlock(&dev->lock);
241 return 1;
242 }
243
244 int cx25821_res_check(struct cx25821_fh *fh, unsigned int bit)
245 {
246 return fh->resources & bit;
247 }
248
249 int cx25821_res_locked(struct cx25821_fh *fh, unsigned int bit)
250 {
251 return fh->dev->channels[fh->channel_id].resources & bit;
252 }
253
254 void cx25821_res_free(struct cx25821_dev *dev, struct cx25821_fh *fh,
255 unsigned int bits)
256 {
257 BUG_ON((fh->resources & bits) != bits);
258 dprintk(1, "%s()\n", __func__);
259
260 mutex_lock(&dev->lock);
261 fh->resources &= ~bits;
262 dev->channels[fh->channel_id].resources &= ~bits;
263 dprintk(1, "res: put %d\n", bits);
264 mutex_unlock(&dev->lock);
265 }
266
267 int cx25821_video_mux(struct cx25821_dev *dev, unsigned int input)
268 {
269 struct v4l2_routing route;
270 memset(&route, 0, sizeof(route));
271
272 dprintk(1, "%s(): video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
273 __func__, input, INPUT(input)->vmux, INPUT(input)->gpio0,
274 INPUT(input)->gpio1, INPUT(input)->gpio2, INPUT(input)->gpio3);
275 dev->input = input;
276
277 route.input = INPUT(input)->vmux;
278
279 /* Tell the internal A/V decoder */
280 cx25821_call_all(dev, video, s_routing, INPUT(input)->vmux, 0, 0);
281
282 return 0;
283 }
284
285 int cx25821_start_video_dma(struct cx25821_dev *dev,
286 struct cx25821_dmaqueue *q,
287 struct cx25821_buffer *buf,
288 struct sram_channel *channel)
289 {
290 int tmp = 0;
291
292 /* setup fifo + format */
293 cx25821_sram_channel_setup(dev, channel, buf->bpl, buf->risc.dma);
294
295 /* reset counter */
296 cx_write(channel->gpcnt_ctl, 3);
297 q->count = 1;
298
299 /* enable irq */
300 cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | (1 << channel->i));
301 cx_set(channel->int_msk, 0x11);
302
303 /* start dma */
304 cx_write(channel->dma_ctl, 0x11); /* FIFO and RISC enable */
305
306 /* make sure upstream setting if any is reversed */
307 tmp = cx_read(VID_CH_MODE_SEL);
308 cx_write(VID_CH_MODE_SEL, tmp & 0xFFFFFE00);
309
310 return 0;
311 }
312
313 int cx25821_restart_video_queue(struct cx25821_dev *dev,
314 struct cx25821_dmaqueue *q,
315 struct sram_channel *channel)
316 {
317 struct cx25821_buffer *buf, *prev;
318 struct list_head *item;
319
320 if (!list_empty(&q->active)) {
321 buf =
322 list_entry(q->active.next, struct cx25821_buffer, vb.queue);
323
324 cx25821_start_video_dma(dev, q, buf, channel);
325
326 list_for_each(item, &q->active) {
327 buf = list_entry(item, struct cx25821_buffer, vb.queue);
328 buf->count = q->count++;
329 }
330
331 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
332 return 0;
333 }
334
335 prev = NULL;
336 for (;;) {
337 if (list_empty(&q->queued))
338 return 0;
339
340 buf =
341 list_entry(q->queued.next, struct cx25821_buffer, vb.queue);
342
343 if (NULL == prev) {
344 list_move_tail(&buf->vb.queue, &q->active);
345 cx25821_start_video_dma(dev, q, buf, channel);
346 buf->vb.state = VIDEOBUF_ACTIVE;
347 buf->count = q->count++;
348 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
349 } else if (prev->vb.width == buf->vb.width &&
350 prev->vb.height == buf->vb.height &&
351 prev->fmt == buf->fmt) {
352 list_move_tail(&buf->vb.queue, &q->active);
353 buf->vb.state = VIDEOBUF_ACTIVE;
354 buf->count = q->count++;
355 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
356 prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
357 } else {
358 return 0;
359 }
360 prev = buf;
361 }
362 }
363
364 void cx25821_vid_timeout(unsigned long data)
365 {
366 struct cx25821_data *timeout_data = (struct cx25821_data *)data;
367 struct cx25821_dev *dev = timeout_data->dev;
368 struct sram_channel *channel = timeout_data->channel;
369 struct cx25821_dmaqueue *q = &dev->channels[channel->i].vidq;
370 struct cx25821_buffer *buf;
371 unsigned long flags;
372
373 /* cx25821_sram_channel_dump(dev, channel); */
374 cx_clear(channel->dma_ctl, 0x11);
375
376 spin_lock_irqsave(&dev->slock, flags);
377 while (!list_empty(&q->active)) {
378 buf =
379 list_entry(q->active.next, struct cx25821_buffer, vb.queue);
380 list_del(&buf->vb.queue);
381
382 buf->vb.state = VIDEOBUF_ERROR;
383 wake_up(&buf->vb.done);
384 }
385
386 cx25821_restart_video_queue(dev, q, channel);
387 spin_unlock_irqrestore(&dev->slock, flags);
388 }
389
390 int cx25821_video_irq(struct cx25821_dev *dev, int chan_num, u32 status)
391 {
392 u32 count = 0;
393 int handled = 0;
394 u32 mask;
395 struct sram_channel *channel = dev->channels[chan_num].sram_channels;
396
397 mask = cx_read(channel->int_msk);
398 if (0 == (status & mask))
399 return handled;
400
401 cx_write(channel->int_stat, status);
402
403 /* risc op code error */
404 if (status & (1 << 16)) {
405 pr_warn("%s, %s: video risc op code error\n",
406 dev->name, channel->name);
407 cx_clear(channel->dma_ctl, 0x11);
408 cx25821_sram_channel_dump(dev, channel);
409 }
410
411 /* risc1 y */
412 if (status & FLD_VID_DST_RISC1) {
413 spin_lock(&dev->slock);
414 count = cx_read(channel->gpcnt);
415 cx25821_video_wakeup(dev, &dev->channels[channel->i].vidq,
416 count);
417 spin_unlock(&dev->slock);
418 handled++;
419 }
420
421 /* risc2 y */
422 if (status & 0x10) {
423 dprintk(2, "stopper video\n");
424 spin_lock(&dev->slock);
425 cx25821_restart_video_queue(dev,
426 &dev->channels[channel->i].vidq, channel);
427 spin_unlock(&dev->slock);
428 handled++;
429 }
430 return handled;
431 }
432
433 void cx25821_videoioctl_unregister(struct cx25821_dev *dev)
434 {
435 if (dev->ioctl_dev) {
436 if (video_is_registered(dev->ioctl_dev))
437 video_unregister_device(dev->ioctl_dev);
438 else
439 video_device_release(dev->ioctl_dev);
440
441 dev->ioctl_dev = NULL;
442 }
443 }
444
445 void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num)
446 {
447 cx_clear(PCI_INT_MSK, 1);
448
449 if (dev->channels[chan_num].video_dev) {
450 if (video_is_registered(dev->channels[chan_num].video_dev))
451 video_unregister_device(
452 dev->channels[chan_num].video_dev);
453 else
454 video_device_release(
455 dev->channels[chan_num].video_dev);
456
457 dev->channels[chan_num].video_dev = NULL;
458
459 btcx_riscmem_free(dev->pci,
460 &dev->channels[chan_num].vidq.stopper);
461
462 pr_warn("device %d released!\n", chan_num);
463 }
464
465 }
466
467 int cx25821_video_register(struct cx25821_dev *dev)
468 {
469 int err;
470 int i;
471
472 struct video_device cx25821_video_device = {
473 .name = "cx25821-video",
474 .fops = &video_fops,
475 .minor = -1,
476 .ioctl_ops = &video_ioctl_ops,
477 .tvnorms = CX25821_NORMS,
478 .current_norm = V4L2_STD_NTSC_M,
479 };
480
481 spin_lock_init(&dev->slock);
482
483 for (i = 0; i < MAX_VID_CHANNEL_NUM - 1; ++i) {
484 cx25821_init_controls(dev, i);
485
486 cx25821_risc_stopper(dev->pci, &dev->channels[i].vidq.stopper,
487 dev->channels[i].sram_channels->dma_ctl,
488 0x11, 0);
489
490 dev->channels[i].sram_channels = &cx25821_sram_channels[i];
491 dev->channels[i].video_dev = NULL;
492 dev->channels[i].resources = 0;
493
494 cx_write(dev->channels[i].sram_channels->int_stat, 0xffffffff);
495
496 INIT_LIST_HEAD(&dev->channels[i].vidq.active);
497 INIT_LIST_HEAD(&dev->channels[i].vidq.queued);
498
499 dev->channels[i].timeout_data.dev = dev;
500 dev->channels[i].timeout_data.channel =
501 &cx25821_sram_channels[i];
502 dev->channels[i].vidq.timeout.function =
503 cx25821_vid_timeout;
504 dev->channels[i].vidq.timeout.data =
505 (unsigned long)&dev->channels[i].timeout_data;
506 init_timer(&dev->channels[i].vidq.timeout);
507
508 /* register v4l devices */
509 dev->channels[i].video_dev = cx25821_vdev_init(dev,
510 dev->pci, &cx25821_video_device, "video");
511
512 err = video_register_device(dev->channels[i].video_dev,
513 VFL_TYPE_GRABBER, video_nr[dev->nr]);
514
515 if (err < 0)
516 goto fail_unreg;
517
518 }
519
520 /* set PCI interrupt */
521 cx_set(PCI_INT_MSK, 0xff);
522
523 /* initial device configuration */
524 mutex_lock(&dev->lock);
525 #ifdef TUNER_FLAG
526 dev->tvnorm = cx25821_video_device.current_norm;
527 cx25821_set_tvnorm(dev, dev->tvnorm);
528 #endif
529 mutex_unlock(&dev->lock);
530
531
532 return 0;
533
534 fail_unreg:
535 cx25821_video_unregister(dev, i);
536 return err;
537 }
538
539 int cx25821_buffer_setup(struct videobuf_queue *q, unsigned int *count,
540 unsigned int *size)
541 {
542 struct cx25821_fh *fh = q->priv_data;
543
544 *size = fh->fmt->depth * fh->width * fh->height >> 3;
545
546 if (0 == *count)
547 *count = 32;
548
549 if (*size * *count > vid_limit * 1024 * 1024)
550 *count = (vid_limit * 1024 * 1024) / *size;
551
552 return 0;
553 }
554
555 int cx25821_buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
556 enum v4l2_field field)
557 {
558 struct cx25821_fh *fh = q->priv_data;
559 struct cx25821_dev *dev = fh->dev;
560 struct cx25821_buffer *buf =
561 container_of(vb, struct cx25821_buffer, vb);
562 int rc, init_buffer = 0;
563 u32 line0_offset, line1_offset;
564 struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
565 int bpl_local = LINE_SIZE_D1;
566 int channel_opened = fh->channel_id;
567
568 BUG_ON(NULL == fh->fmt);
569 if (fh->width < 48 || fh->width > 720 ||
570 fh->height < 32 || fh->height > 576)
571 return -EINVAL;
572
573 buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
574
575 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
576 return -EINVAL;
577
578 if (buf->fmt != fh->fmt ||
579 buf->vb.width != fh->width ||
580 buf->vb.height != fh->height || buf->vb.field != field) {
581 buf->fmt = fh->fmt;
582 buf->vb.width = fh->width;
583 buf->vb.height = fh->height;
584 buf->vb.field = field;
585 init_buffer = 1;
586 }
587
588 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
589 init_buffer = 1;
590 rc = videobuf_iolock(q, &buf->vb, NULL);
591 if (0 != rc) {
592 printk(KERN_DEBUG pr_fmt("videobuf_iolock failed!\n"));
593 goto fail;
594 }
595 }
596
597 dprintk(1, "init_buffer=%d\n", init_buffer);
598
599 if (init_buffer) {
600
601 channel_opened = dev->channel_opened;
602 if (channel_opened < 0 || channel_opened > 7)
603 channel_opened = 7;
604
605 if (dev->channels[channel_opened].pixel_formats ==
606 PIXEL_FRMT_411)
607 buf->bpl = (buf->fmt->depth * buf->vb.width) >> 3;
608 else
609 buf->bpl = (buf->fmt->depth >> 3) * (buf->vb.width);
610
611 if (dev->channels[channel_opened].pixel_formats ==
612 PIXEL_FRMT_411) {
613 bpl_local = buf->bpl;
614 } else {
615 bpl_local = buf->bpl; /* Default */
616
617 if (channel_opened >= 0 && channel_opened <= 7) {
618 if (dev->channels[channel_opened]
619 .use_cif_resolution) {
620 if (dev->tvnorm & V4L2_STD_PAL_BG
621 || dev->tvnorm & V4L2_STD_PAL_DK)
622 bpl_local = 352 << 1;
623 else
624 bpl_local =
625 dev->channels[channel_opened].
626 cif_width <<
627 1;
628 }
629 }
630 }
631
632 switch (buf->vb.field) {
633 case V4L2_FIELD_TOP:
634 cx25821_risc_buffer(dev->pci, &buf->risc,
635 dma->sglist, 0, UNSET,
636 buf->bpl, 0, buf->vb.height);
637 break;
638 case V4L2_FIELD_BOTTOM:
639 cx25821_risc_buffer(dev->pci, &buf->risc,
640 dma->sglist, UNSET, 0,
641 buf->bpl, 0, buf->vb.height);
642 break;
643 case V4L2_FIELD_INTERLACED:
644 /* All other formats are top field first */
645 line0_offset = 0;
646 line1_offset = buf->bpl;
647 dprintk(1, "top field first\n");
648
649 cx25821_risc_buffer(dev->pci, &buf->risc,
650 dma->sglist, line0_offset,
651 bpl_local, bpl_local, bpl_local,
652 buf->vb.height >> 1);
653 break;
654 case V4L2_FIELD_SEQ_TB:
655 cx25821_risc_buffer(dev->pci, &buf->risc,
656 dma->sglist,
657 0, buf->bpl * (buf->vb.height >> 1),
658 buf->bpl, 0, buf->vb.height >> 1);
659 break;
660 case V4L2_FIELD_SEQ_BT:
661 cx25821_risc_buffer(dev->pci, &buf->risc,
662 dma->sglist,
663 buf->bpl * (buf->vb.height >> 1), 0,
664 buf->bpl, 0, buf->vb.height >> 1);
665 break;
666 default:
667 BUG();
668 }
669 }
670
671 dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
672 buf, buf->vb.i, fh->width, fh->height, fh->fmt->depth,
673 fh->fmt->name, (unsigned long)buf->risc.dma);
674
675 buf->vb.state = VIDEOBUF_PREPARED;
676
677 return 0;
678
679 fail:
680 cx25821_free_buffer(q, buf);
681 return rc;
682 }
683
684 void cx25821_buffer_release(struct videobuf_queue *q,
685 struct videobuf_buffer *vb)
686 {
687 struct cx25821_buffer *buf =
688 container_of(vb, struct cx25821_buffer, vb);
689
690 cx25821_free_buffer(q, buf);
691 }
692
693 struct videobuf_queue *get_queue(struct cx25821_fh *fh)
694 {
695 switch (fh->type) {
696 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
697 return &fh->vidq;
698 default:
699 BUG();
700 return NULL;
701 }
702 }
703
704 int cx25821_get_resource(struct cx25821_fh *fh, int resource)
705 {
706 switch (fh->type) {
707 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
708 return resource;
709 default:
710 BUG();
711 return 0;
712 }
713 }
714
715 int cx25821_video_mmap(struct file *file, struct vm_area_struct *vma)
716 {
717 struct cx25821_fh *fh = file->private_data;
718
719 return videobuf_mmap_mapper(get_queue(fh), vma);
720 }
721
722
723 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
724 {
725 struct cx25821_buffer *buf =
726 container_of(vb, struct cx25821_buffer, vb);
727 struct cx25821_buffer *prev;
728 struct cx25821_fh *fh = vq->priv_data;
729 struct cx25821_dev *dev = fh->dev;
730 struct cx25821_dmaqueue *q = &dev->channels[fh->channel_id].vidq;
731
732 /* add jump to stopper */
733 buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
734 buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
735 buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
736
737 dprintk(2, "jmp to stopper (0x%x)\n", buf->risc.jmp[1]);
738
739 if (!list_empty(&q->queued)) {
740 list_add_tail(&buf->vb.queue, &q->queued);
741 buf->vb.state = VIDEOBUF_QUEUED;
742 dprintk(2, "[%p/%d] buffer_queue - append to queued\n", buf,
743 buf->vb.i);
744
745 } else if (list_empty(&q->active)) {
746 list_add_tail(&buf->vb.queue, &q->active);
747 cx25821_start_video_dma(dev, q, buf,
748 dev->channels[fh->channel_id].sram_channels);
749 buf->vb.state = VIDEOBUF_ACTIVE;
750 buf->count = q->count++;
751 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
752 dprintk(2, "[%p/%d] buffer_queue - first active, buf cnt = %d, q->count = %d\n",
753 buf, buf->vb.i, buf->count, q->count);
754 } else {
755 prev = list_entry(q->active.prev, struct cx25821_buffer,
756 vb.queue);
757 if (prev->vb.width == buf->vb.width
758 && prev->vb.height == buf->vb.height
759 && prev->fmt == buf->fmt) {
760 list_add_tail(&buf->vb.queue, &q->active);
761 buf->vb.state = VIDEOBUF_ACTIVE;
762 buf->count = q->count++;
763 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
764
765 /* 64 bit bits 63-32 */
766 prev->risc.jmp[2] = cpu_to_le32(0);
767 dprintk(2, "[%p/%d] buffer_queue - append to active, buf->count=%d\n",
768 buf, buf->vb.i, buf->count);
769
770 } else {
771 list_add_tail(&buf->vb.queue, &q->queued);
772 buf->vb.state = VIDEOBUF_QUEUED;
773 dprintk(2, "[%p/%d] buffer_queue - first queued\n", buf,
774 buf->vb.i);
775 }
776 }
777
778 if (list_empty(&q->active))
779 dprintk(2, "active queue empty!\n");
780 }
781
782 static struct videobuf_queue_ops cx25821_video_qops = {
783 .buf_setup = cx25821_buffer_setup,
784 .buf_prepare = cx25821_buffer_prepare,
785 .buf_queue = buffer_queue,
786 .buf_release = cx25821_buffer_release,
787 };
788
789 static int video_open(struct file *file)
790 {
791 struct video_device *vdev = video_devdata(file);
792 struct cx25821_dev *h, *dev = video_drvdata(file);
793 struct cx25821_fh *fh;
794 struct list_head *list;
795 int minor = video_devdata(file)->minor;
796 enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
797 u32 pix_format;
798 int ch_id = 0;
799 int i;
800
801 dprintk(1, "open dev=%s type=%s\n", video_device_node_name(vdev),
802 v4l2_type_names[type]);
803
804 /* allocate + initialize per filehandle data */
805 fh = kzalloc(sizeof(*fh), GFP_KERNEL);
806 if (NULL == fh)
807 return -ENOMEM;
808
809 mutex_lock(&cx25821_devlist_mutex);
810
811 list_for_each(list, &cx25821_devlist)
812 {
813 h = list_entry(list, struct cx25821_dev, devlist);
814
815 for (i = 0; i < MAX_VID_CHANNEL_NUM; i++) {
816 if (h->channels[i].video_dev &&
817 h->channels[i].video_dev->minor == minor) {
818 dev = h;
819 ch_id = i;
820 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
821 }
822 }
823 }
824
825 if (NULL == dev) {
826 mutex_unlock(&cx25821_devlist_mutex);
827 kfree(fh);
828 return -ENODEV;
829 }
830
831 file->private_data = fh;
832 fh->dev = dev;
833 fh->type = type;
834 fh->width = 720;
835 fh->channel_id = ch_id;
836
837 if (dev->tvnorm & V4L2_STD_PAL_BG || dev->tvnorm & V4L2_STD_PAL_DK)
838 fh->height = 576;
839 else
840 fh->height = 480;
841
842 dev->channel_opened = fh->channel_id;
843 if (dev->channels[ch_id].pixel_formats == PIXEL_FRMT_411)
844 pix_format = V4L2_PIX_FMT_Y41P;
845 else
846 pix_format = V4L2_PIX_FMT_YUYV;
847 fh->fmt = cx25821_format_by_fourcc(pix_format);
848
849 v4l2_prio_open(&dev->channels[ch_id].prio, &fh->prio);
850
851 videobuf_queue_sg_init(&fh->vidq, &cx25821_video_qops,
852 &dev->pci->dev, &dev->slock,
853 V4L2_BUF_TYPE_VIDEO_CAPTURE,
854 V4L2_FIELD_INTERLACED,
855 sizeof(struct cx25821_buffer), fh, NULL);
856
857 dprintk(1, "post videobuf_queue_init()\n");
858 mutex_unlock(&cx25821_devlist_mutex);
859
860 return 0;
861 }
862
863 static ssize_t video_read(struct file *file, char __user * data, size_t count,
864 loff_t *ppos)
865 {
866 struct cx25821_fh *fh = file->private_data;
867
868 switch (fh->type) {
869 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
870 if (cx25821_res_locked(fh, RESOURCE_VIDEO0))
871 return -EBUSY;
872
873 return videobuf_read_one(&fh->vidq, data, count, ppos,
874 file->f_flags & O_NONBLOCK);
875
876 default:
877 BUG();
878 return 0;
879 }
880 }
881
882 static unsigned int video_poll(struct file *file,
883 struct poll_table_struct *wait)
884 {
885 struct cx25821_fh *fh = file->private_data;
886 struct cx25821_buffer *buf;
887
888 if (cx25821_res_check(fh, RESOURCE_VIDEO0)) {
889 /* streaming capture */
890 if (list_empty(&fh->vidq.stream))
891 return POLLERR;
892 buf = list_entry(fh->vidq.stream.next,
893 struct cx25821_buffer, vb.stream);
894 } else {
895 /* read() capture */
896 buf = (struct cx25821_buffer *)fh->vidq.read_buf;
897 if (NULL == buf)
898 return POLLERR;
899 }
900
901 poll_wait(file, &buf->vb.done, wait);
902 if (buf->vb.state == VIDEOBUF_DONE || buf->vb.state == VIDEOBUF_ERROR) {
903 if (buf->vb.state == VIDEOBUF_DONE) {
904 struct cx25821_dev *dev = fh->dev;
905
906 if (dev && dev->channels[fh->channel_id]
907 .use_cif_resolution) {
908 u8 cam_id = *((char *)buf->vb.baddr + 3);
909 memcpy((char *)buf->vb.baddr,
910 (char *)buf->vb.baddr + (fh->width * 2),
911 (fh->width * 2));
912 *((char *)buf->vb.baddr + 3) = cam_id;
913 }
914 }
915
916 return POLLIN | POLLRDNORM;
917 }
918
919 return 0;
920 }
921
922 static int video_release(struct file *file)
923 {
924 struct cx25821_fh *fh = file->private_data;
925 struct cx25821_dev *dev = fh->dev;
926
927 /* stop the risc engine and fifo */
928 cx_write(channel0->dma_ctl, 0); /* FIFO and RISC disable */
929
930 /* stop video capture */
931 if (cx25821_res_check(fh, RESOURCE_VIDEO0)) {
932 videobuf_queue_cancel(&fh->vidq);
933 cx25821_res_free(dev, fh, RESOURCE_VIDEO0);
934 }
935
936 if (fh->vidq.read_buf) {
937 cx25821_buffer_release(&fh->vidq, fh->vidq.read_buf);
938 kfree(fh->vidq.read_buf);
939 }
940
941 videobuf_mmap_free(&fh->vidq);
942
943 v4l2_prio_close(&dev->channels[fh->channel_id].prio, fh->prio);
944 file->private_data = NULL;
945 kfree(fh);
946
947 return 0;
948 }
949
950 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
951 {
952 struct cx25821_fh *fh = priv;
953 struct cx25821_dev *dev = fh->dev;
954
955 if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
956 return -EINVAL;
957
958 if (unlikely(i != fh->type))
959 return -EINVAL;
960
961 if (unlikely(!cx25821_res_get(dev, fh, cx25821_get_resource(fh,
962 RESOURCE_VIDEO0))))
963 return -EBUSY;
964
965 return videobuf_streamon(get_queue(fh));
966 }
967
968 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
969 {
970 struct cx25821_fh *fh = priv;
971 struct cx25821_dev *dev = fh->dev;
972 int err, res;
973
974 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
975 return -EINVAL;
976 if (i != fh->type)
977 return -EINVAL;
978
979 res = cx25821_get_resource(fh, RESOURCE_VIDEO0);
980 err = videobuf_streamoff(get_queue(fh));
981 if (err < 0)
982 return err;
983 cx25821_res_free(dev, fh, res);
984 return 0;
985 }
986
987 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
988 struct v4l2_format *f)
989 {
990 struct cx25821_fh *fh = priv;
991 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
992 struct v4l2_mbus_framefmt mbus_fmt;
993 int err;
994 int pix_format = PIXEL_FRMT_422;
995
996 if (fh) {
997 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
998 fh->prio);
999 if (0 != err)
1000 return err;
1001 }
1002
1003 dprintk(2, "%s()\n", __func__);
1004 err = cx25821_vidioc_try_fmt_vid_cap(file, priv, f);
1005
1006 if (0 != err)
1007 return err;
1008
1009 fh->fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
1010 fh->vidq.field = f->fmt.pix.field;
1011
1012 /* check if width and height is valid based on set standard */
1013 if (cx25821_is_valid_width(f->fmt.pix.width, dev->tvnorm))
1014 fh->width = f->fmt.pix.width;
1015
1016 if (cx25821_is_valid_height(f->fmt.pix.height, dev->tvnorm))
1017 fh->height = f->fmt.pix.height;
1018
1019 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_Y41P)
1020 pix_format = PIXEL_FRMT_411;
1021 else if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV)
1022 pix_format = PIXEL_FRMT_422;
1023 else
1024 return -EINVAL;
1025
1026 cx25821_set_pixel_format(dev, SRAM_CH00, pix_format);
1027
1028 /* check if cif resolution */
1029 if (fh->width == 320 || fh->width == 352)
1030 dev->channels[fh->channel_id].use_cif_resolution = 1;
1031 else
1032 dev->channels[fh->channel_id].use_cif_resolution = 0;
1033
1034 dev->channels[fh->channel_id].cif_width = fh->width;
1035 medusa_set_resolution(dev, fh->width, SRAM_CH00);
1036
1037 dprintk(2, "%s(): width=%d height=%d field=%d\n", __func__, fh->width,
1038 fh->height, fh->vidq.field);
1039 v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
1040 cx25821_call_all(dev, video, s_mbus_fmt, &mbus_fmt);
1041
1042 return 0;
1043 }
1044
1045 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1046 {
1047 int ret_val = 0;
1048 struct cx25821_fh *fh = priv;
1049 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1050
1051 ret_val = videobuf_dqbuf(get_queue(fh), p, file->f_flags & O_NONBLOCK);
1052
1053 p->sequence = dev->channels[fh->channel_id].vidq.count;
1054
1055 return ret_val;
1056 }
1057
1058 static int vidioc_log_status(struct file *file, void *priv)
1059 {
1060 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1061 struct cx25821_fh *fh = priv;
1062 char name[32 + 2];
1063
1064 struct sram_channel *sram_ch = dev->channels[fh->channel_id]
1065 .sram_channels;
1066 u32 tmp = 0;
1067
1068 snprintf(name, sizeof(name), "%s/2", dev->name);
1069 pr_info("%s/2: ============ START LOG STATUS ============\n",
1070 dev->name);
1071 cx25821_call_all(dev, core, log_status);
1072 tmp = cx_read(sram_ch->dma_ctl);
1073 pr_info("Video input 0 is %s\n",
1074 (tmp & 0x11) ? "streaming" : "stopped");
1075 pr_info("%s/2: ============= END LOG STATUS =============\n",
1076 dev->name);
1077 return 0;
1078 }
1079
1080 static int vidioc_s_ctrl(struct file *file, void *priv,
1081 struct v4l2_control *ctl)
1082 {
1083 struct cx25821_fh *fh = priv;
1084 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1085 int err;
1086
1087 if (fh) {
1088 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
1089 fh->prio);
1090 if (0 != err)
1091 return err;
1092 }
1093
1094 return cx25821_set_control(dev, ctl, fh->channel_id);
1095 }
1096
1097 /* VIDEO IOCTLS */
1098 int cx25821_vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1099 struct v4l2_format *f)
1100 {
1101 struct cx25821_fh *fh = priv;
1102
1103 f->fmt.pix.width = fh->width;
1104 f->fmt.pix.height = fh->height;
1105 f->fmt.pix.field = fh->vidq.field;
1106 f->fmt.pix.pixelformat = fh->fmt->fourcc;
1107 f->fmt.pix.bytesperline = (f->fmt.pix.width * fh->fmt->depth) >> 3;
1108 f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
1109
1110 return 0;
1111 }
1112
1113 int cx25821_vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1114 struct v4l2_format *f)
1115 {
1116 struct cx25821_fmt *fmt;
1117 enum v4l2_field field;
1118 unsigned int maxw, maxh;
1119
1120 fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
1121 if (NULL == fmt)
1122 return -EINVAL;
1123
1124 field = f->fmt.pix.field;
1125 maxw = 720;
1126 maxh = 576;
1127
1128 if (V4L2_FIELD_ANY == field) {
1129 if (f->fmt.pix.height > maxh / 2)
1130 field = V4L2_FIELD_INTERLACED;
1131 else
1132 field = V4L2_FIELD_TOP;
1133 }
1134
1135 switch (field) {
1136 case V4L2_FIELD_TOP:
1137 case V4L2_FIELD_BOTTOM:
1138 maxh = maxh / 2;
1139 break;
1140 case V4L2_FIELD_INTERLACED:
1141 break;
1142 default:
1143 return -EINVAL;
1144 }
1145
1146 f->fmt.pix.field = field;
1147 if (f->fmt.pix.height < 32)
1148 f->fmt.pix.height = 32;
1149 if (f->fmt.pix.height > maxh)
1150 f->fmt.pix.height = maxh;
1151 if (f->fmt.pix.width < 48)
1152 f->fmt.pix.width = 48;
1153 if (f->fmt.pix.width > maxw)
1154 f->fmt.pix.width = maxw;
1155 f->fmt.pix.width &= ~0x03;
1156 f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3;
1157 f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
1158
1159 return 0;
1160 }
1161
1162 int cx25821_vidioc_querycap(struct file *file, void *priv,
1163 struct v4l2_capability *cap)
1164 {
1165 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1166
1167 strcpy(cap->driver, "cx25821");
1168 strlcpy(cap->card, cx25821_boards[dev->board].name, sizeof(cap->card));
1169 sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1170 cap->version = CX25821_VERSION_CODE;
1171 cap->capabilities =
1172 V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
1173 if (UNSET != dev->tuner_type)
1174 cap->capabilities |= V4L2_CAP_TUNER;
1175 return 0;
1176 }
1177
1178 int cx25821_vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1179 struct v4l2_fmtdesc *f)
1180 {
1181 if (unlikely(f->index >= ARRAY_SIZE(formats)))
1182 return -EINVAL;
1183
1184 strlcpy(f->description, formats[f->index].name, sizeof(f->description));
1185 f->pixelformat = formats[f->index].fourcc;
1186
1187 return 0;
1188 }
1189
1190 int cx25821_vidioc_reqbufs(struct file *file, void *priv,
1191 struct v4l2_requestbuffers *p)
1192 {
1193 struct cx25821_fh *fh = priv;
1194 return videobuf_reqbufs(get_queue(fh), p);
1195 }
1196
1197 int cx25821_vidioc_querybuf(struct file *file, void *priv,
1198 struct v4l2_buffer *p)
1199 {
1200 struct cx25821_fh *fh = priv;
1201 return videobuf_querybuf(get_queue(fh), p);
1202 }
1203
1204 int 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
1210 int 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
1220 int cx25821_vidioc_s_priority(struct file *file, void *f,
1221 enum v4l2_priority prio)
1222 {
1223 struct cx25821_fh *fh = f;
1224 struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev;
1225
1226 return v4l2_prio_change(&dev->channels[fh->channel_id].prio, &fh->prio,
1227 prio);
1228 }
1229
1230 #ifdef TUNER_FLAG
1231 int cx25821_vidioc_s_std(struct file *file, void *priv, v4l2_std_id * tvnorms)
1232 {
1233 struct cx25821_fh *fh = priv;
1234 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1235 int err;
1236
1237 dprintk(1, "%s()\n", __func__);
1238
1239 if (fh) {
1240 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
1241 fh->prio);
1242 if (0 != err)
1243 return err;
1244 }
1245
1246 if (dev->tvnorm == *tvnorms)
1247 return 0;
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
1259 int cx25821_enum_input(struct cx25821_dev *dev, struct v4l2_input *i)
1260 {
1261 static const char * const 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
1283 int cx25821_vidioc_enum_input(struct file *file, void *priv,
1284 struct v4l2_input *i)
1285 {
1286 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1287 dprintk(1, "%s()\n", __func__);
1288 return cx25821_enum_input(dev, i);
1289 }
1290
1291 int cx25821_vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1292 {
1293 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1294
1295 *i = dev->input;
1296 dprintk(1, "%s(): returns %d\n", __func__, *i);
1297 return 0;
1298 }
1299
1300 int cx25821_vidioc_s_input(struct file *file, void *priv, unsigned int i)
1301 {
1302 struct cx25821_fh *fh = priv;
1303 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1304 int err;
1305
1306 dprintk(1, "%s(%d)\n", __func__, i);
1307
1308 if (fh) {
1309 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
1310 fh->prio);
1311 if (0 != err)
1312 return err;
1313 }
1314
1315 if (i >= CX25821_NR_INPUT) {
1316 dprintk(1, "%s(): -EINVAL\n", __func__);
1317 return -EINVAL;
1318 }
1319
1320 mutex_lock(&dev->lock);
1321 cx25821_video_mux(dev, i);
1322 mutex_unlock(&dev->lock);
1323 return 0;
1324 }
1325
1326 #ifdef TUNER_FLAG
1327 int cx25821_vidioc_g_frequency(struct file *file, void *priv,
1328 struct v4l2_frequency *f)
1329 {
1330 struct cx25821_fh *fh = priv;
1331 struct cx25821_dev *dev = fh->dev;
1332
1333 f->frequency = dev->freq;
1334
1335 cx25821_call_all(dev, tuner, g_frequency, f);
1336
1337 return 0;
1338 }
1339
1340 int cx25821_set_freq(struct cx25821_dev *dev, struct v4l2_frequency *f)
1341 {
1342 mutex_lock(&dev->lock);
1343 dev->freq = f->frequency;
1344
1345 cx25821_call_all(dev, tuner, s_frequency, f);
1346
1347 /* When changing channels it is required to reset TVAUDIO */
1348 msleep(10);
1349
1350 mutex_unlock(&dev->lock);
1351
1352 return 0;
1353 }
1354
1355 int cx25821_vidioc_s_frequency(struct file *file, void *priv,
1356 struct v4l2_frequency *f)
1357 {
1358 struct cx25821_fh *fh = priv;
1359 struct cx25821_dev *dev;
1360 int err;
1361
1362 if (fh) {
1363 dev = fh->dev;
1364 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
1365 fh->prio);
1366 if (0 != err)
1367 return err;
1368 } else {
1369 pr_err("Invalid fh pointer!\n");
1370 return -EINVAL;
1371 }
1372
1373 return cx25821_set_freq(dev, f);
1374 }
1375 #endif
1376
1377 #ifdef CONFIG_VIDEO_ADV_DEBUG
1378 int cx25821_vidioc_g_register(struct file *file, void *fh,
1379 struct v4l2_dbg_register *reg)
1380 {
1381 struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev;
1382
1383 if (!v4l2_chip_match_host(&reg->match))
1384 return -EINVAL;
1385
1386 cx25821_call_all(dev, core, g_register, reg);
1387
1388 return 0;
1389 }
1390
1391 int cx25821_vidioc_s_register(struct file *file, void *fh,
1392 struct v4l2_dbg_register *reg)
1393 {
1394 struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev;
1395
1396 if (!v4l2_chip_match_host(&reg->match))
1397 return -EINVAL;
1398
1399 cx25821_call_all(dev, core, s_register, reg);
1400
1401 return 0;
1402 }
1403
1404 #endif
1405
1406 #ifdef TUNER_FLAG
1407 int cx25821_vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1408 {
1409 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1410
1411 if (unlikely(UNSET == dev->tuner_type))
1412 return -EINVAL;
1413 if (0 != t->index)
1414 return -EINVAL;
1415
1416 strcpy(t->name, "Television");
1417 t->type = V4L2_TUNER_ANALOG_TV;
1418 t->capability = V4L2_TUNER_CAP_NORM;
1419 t->rangehigh = 0xffffffffUL;
1420
1421 t->signal = 0xffff; /* LOCKED */
1422 return 0;
1423 }
1424
1425 int cx25821_vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1426 {
1427 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1428 struct cx25821_fh *fh = priv;
1429 int err;
1430
1431 if (fh) {
1432 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
1433 fh->prio);
1434 if (0 != err)
1435 return err;
1436 }
1437
1438 dprintk(1, "%s()\n", __func__);
1439 if (UNSET == dev->tuner_type)
1440 return -EINVAL;
1441 if (0 != t->index)
1442 return -EINVAL;
1443
1444 return 0;
1445 }
1446
1447 #endif
1448 /*****************************************************************************/
1449 static const struct v4l2_queryctrl no_ctl = {
1450 .name = "42",
1451 .flags = V4L2_CTRL_FLAG_DISABLED,
1452 };
1453
1454 static struct v4l2_queryctrl cx25821_ctls[] = {
1455 /* --- video --- */
1456 {
1457 .id = V4L2_CID_BRIGHTNESS,
1458 .name = "Brightness",
1459 .minimum = 0,
1460 .maximum = 10000,
1461 .step = 1,
1462 .default_value = 6200,
1463 .type = V4L2_CTRL_TYPE_INTEGER,
1464 }, {
1465 .id = V4L2_CID_CONTRAST,
1466 .name = "Contrast",
1467 .minimum = 0,
1468 .maximum = 10000,
1469 .step = 1,
1470 .default_value = 5000,
1471 .type = V4L2_CTRL_TYPE_INTEGER,
1472 }, {
1473 .id = V4L2_CID_SATURATION,
1474 .name = "Saturation",
1475 .minimum = 0,
1476 .maximum = 10000,
1477 .step = 1,
1478 .default_value = 5000,
1479 .type = V4L2_CTRL_TYPE_INTEGER,
1480 }, {
1481 .id = V4L2_CID_HUE,
1482 .name = "Hue",
1483 .minimum = 0,
1484 .maximum = 10000,
1485 .step = 1,
1486 .default_value = 5000,
1487 .type = V4L2_CTRL_TYPE_INTEGER,
1488 }
1489 };
1490 static const int CX25821_CTLS = ARRAY_SIZE(cx25821_ctls);
1491
1492 static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl)
1493 {
1494 int i;
1495
1496 if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1)
1497 return -EINVAL;
1498 for (i = 0; i < CX25821_CTLS; i++)
1499 if (cx25821_ctls[i].id == qctrl->id)
1500 break;
1501 if (i == CX25821_CTLS) {
1502 *qctrl = no_ctl;
1503 return 0;
1504 }
1505 *qctrl = cx25821_ctls[i];
1506 return 0;
1507 }
1508
1509 int cx25821_vidioc_queryctrl(struct file *file, void *priv,
1510 struct v4l2_queryctrl *qctrl)
1511 {
1512 return cx25821_ctrl_query(qctrl);
1513 }
1514
1515 /* ------------------------------------------------------------------ */
1516 /* VIDEO CTRL IOCTLS */
1517
1518 static const struct v4l2_queryctrl *ctrl_by_id(unsigned int id)
1519 {
1520 unsigned int i;
1521
1522 for (i = 0; i < CX25821_CTLS; i++)
1523 if (cx25821_ctls[i].id == id)
1524 return cx25821_ctls + i;
1525 return NULL;
1526 }
1527
1528 int cx25821_vidioc_g_ctrl(struct file *file, void *priv,
1529 struct v4l2_control *ctl)
1530 {
1531 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1532 struct cx25821_fh *fh = priv;
1533
1534 const struct v4l2_queryctrl *ctrl;
1535
1536 ctrl = ctrl_by_id(ctl->id);
1537
1538 if (NULL == ctrl)
1539 return -EINVAL;
1540 switch (ctl->id) {
1541 case V4L2_CID_BRIGHTNESS:
1542 ctl->value = dev->channels[fh->channel_id].ctl_bright;
1543 break;
1544 case V4L2_CID_HUE:
1545 ctl->value = dev->channels[fh->channel_id].ctl_hue;
1546 break;
1547 case V4L2_CID_CONTRAST:
1548 ctl->value = dev->channels[fh->channel_id].ctl_contrast;
1549 break;
1550 case V4L2_CID_SATURATION:
1551 ctl->value = dev->channels[fh->channel_id].ctl_saturation;
1552 break;
1553 }
1554 return 0;
1555 }
1556
1557 int cx25821_set_control(struct cx25821_dev *dev,
1558 struct v4l2_control *ctl, int chan_num)
1559 {
1560 int err;
1561 const struct v4l2_queryctrl *ctrl;
1562
1563 err = -EINVAL;
1564
1565 ctrl = ctrl_by_id(ctl->id);
1566
1567 if (NULL == ctrl)
1568 return err;
1569
1570 switch (ctrl->type) {
1571 case V4L2_CTRL_TYPE_BOOLEAN:
1572 case V4L2_CTRL_TYPE_MENU:
1573 case V4L2_CTRL_TYPE_INTEGER:
1574 if (ctl->value < ctrl->minimum)
1575 ctl->value = ctrl->minimum;
1576 if (ctl->value > ctrl->maximum)
1577 ctl->value = ctrl->maximum;
1578 break;
1579 default:
1580 /* nothing */ ;
1581 }
1582
1583 switch (ctl->id) {
1584 case V4L2_CID_BRIGHTNESS:
1585 dev->channels[chan_num].ctl_bright = ctl->value;
1586 medusa_set_brightness(dev, ctl->value, chan_num);
1587 break;
1588 case V4L2_CID_HUE:
1589 dev->channels[chan_num].ctl_hue = ctl->value;
1590 medusa_set_hue(dev, ctl->value, chan_num);
1591 break;
1592 case V4L2_CID_CONTRAST:
1593 dev->channels[chan_num].ctl_contrast = ctl->value;
1594 medusa_set_contrast(dev, ctl->value, chan_num);
1595 break;
1596 case V4L2_CID_SATURATION:
1597 dev->channels[chan_num].ctl_saturation = ctl->value;
1598 medusa_set_saturation(dev, ctl->value, chan_num);
1599 break;
1600 }
1601
1602 err = 0;
1603
1604 return err;
1605 }
1606
1607 static void cx25821_init_controls(struct cx25821_dev *dev, int chan_num)
1608 {
1609 struct v4l2_control ctrl;
1610 int i;
1611 for (i = 0; i < CX25821_CTLS; i++) {
1612 ctrl.id = cx25821_ctls[i].id;
1613 ctrl.value = cx25821_ctls[i].default_value;
1614
1615 cx25821_set_control(dev, &ctrl, chan_num);
1616 }
1617 }
1618
1619 int cx25821_vidioc_cropcap(struct file *file, void *priv,
1620 struct v4l2_cropcap *cropcap)
1621 {
1622 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1623
1624 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1625 return -EINVAL;
1626 cropcap->bounds.top = cropcap->bounds.left = 0;
1627 cropcap->bounds.width = 720;
1628 cropcap->bounds.height = dev->tvnorm == V4L2_STD_PAL_BG ? 576 : 480;
1629 cropcap->pixelaspect.numerator =
1630 dev->tvnorm == V4L2_STD_PAL_BG ? 59 : 10;
1631 cropcap->pixelaspect.denominator =
1632 dev->tvnorm == V4L2_STD_PAL_BG ? 54 : 11;
1633 cropcap->defrect = cropcap->bounds;
1634 return 0;
1635 }
1636
1637 int cx25821_vidioc_s_crop(struct file *file, void *priv, struct v4l2_crop *crop)
1638 {
1639 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1640 struct cx25821_fh *fh = priv;
1641 int err;
1642
1643 if (fh) {
1644 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
1645 fh->prio);
1646 if (0 != err)
1647 return err;
1648 }
1649 /* cx25821_vidioc_s_crop not supported */
1650 return -EINVAL;
1651 }
1652
1653 int cx25821_vidioc_g_crop(struct file *file, void *priv, struct v4l2_crop *crop)
1654 {
1655 /* cx25821_vidioc_g_crop not supported */
1656 return -EINVAL;
1657 }
1658
1659 int cx25821_vidioc_querystd(struct file *file, void *priv, v4l2_std_id * norm)
1660 {
1661 /* medusa does not support video standard sensing of current input */
1662 *norm = CX25821_NORMS;
1663
1664 return 0;
1665 }
1666
1667 int cx25821_is_valid_width(u32 width, v4l2_std_id tvnorm)
1668 {
1669 if (tvnorm == V4L2_STD_PAL_BG) {
1670 if (width == 352 || width == 720)
1671 return 1;
1672 else
1673 return 0;
1674 }
1675
1676 if (tvnorm == V4L2_STD_NTSC_M) {
1677 if (width == 320 || width == 352 || width == 720)
1678 return 1;
1679 else
1680 return 0;
1681 }
1682 return 0;
1683 }
1684
1685 int cx25821_is_valid_height(u32 height, v4l2_std_id tvnorm)
1686 {
1687 if (tvnorm == V4L2_STD_PAL_BG) {
1688 if (height == 576 || height == 288)
1689 return 1;
1690 else
1691 return 0;
1692 }
1693
1694 if (tvnorm == V4L2_STD_NTSC_M) {
1695 if (height == 480 || height == 240)
1696 return 1;
1697 else
1698 return 0;
1699 }
1700
1701 return 0;
1702 }
1703
1704 static long video_ioctl_upstream9(struct file *file, unsigned int cmd,
1705 unsigned long arg)
1706 {
1707 struct cx25821_fh *fh = file->private_data;
1708 struct cx25821_dev *dev = fh->dev;
1709 int command = 0;
1710 struct upstream_user_struct *data_from_user;
1711
1712 data_from_user = (struct upstream_user_struct *)arg;
1713
1714 if (!data_from_user) {
1715 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1716 return 0;
1717 }
1718
1719 command = data_from_user->command;
1720
1721 if (command != UPSTREAM_START_VIDEO && command != UPSTREAM_STOP_VIDEO)
1722 return 0;
1723
1724 dev->input_filename = data_from_user->input_filename;
1725 dev->input_audiofilename = data_from_user->input_filename;
1726 dev->vid_stdname = data_from_user->vid_stdname;
1727 dev->pixel_format = data_from_user->pixel_format;
1728 dev->channel_select = data_from_user->channel_select;
1729 dev->command = data_from_user->command;
1730
1731 switch (command) {
1732 case UPSTREAM_START_VIDEO:
1733 cx25821_start_upstream_video_ch1(dev, data_from_user);
1734 break;
1735
1736 case UPSTREAM_STOP_VIDEO:
1737 cx25821_stop_upstream_video_ch1(dev);
1738 break;
1739 }
1740
1741 return 0;
1742 }
1743
1744 static long video_ioctl_upstream10(struct file *file, unsigned int cmd,
1745 unsigned long arg)
1746 {
1747 struct cx25821_fh *fh = file->private_data;
1748 struct cx25821_dev *dev = fh->dev;
1749 int command = 0;
1750 struct upstream_user_struct *data_from_user;
1751
1752 data_from_user = (struct upstream_user_struct *)arg;
1753
1754 if (!data_from_user) {
1755 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1756 return 0;
1757 }
1758
1759 command = data_from_user->command;
1760
1761 if (command != UPSTREAM_START_VIDEO && command != UPSTREAM_STOP_VIDEO)
1762 return 0;
1763
1764 dev->input_filename_ch2 = data_from_user->input_filename;
1765 dev->input_audiofilename = data_from_user->input_filename;
1766 dev->vid_stdname_ch2 = data_from_user->vid_stdname;
1767 dev->pixel_format_ch2 = data_from_user->pixel_format;
1768 dev->channel_select_ch2 = data_from_user->channel_select;
1769 dev->command_ch2 = data_from_user->command;
1770
1771 switch (command) {
1772 case UPSTREAM_START_VIDEO:
1773 cx25821_start_upstream_video_ch2(dev, data_from_user);
1774 break;
1775
1776 case UPSTREAM_STOP_VIDEO:
1777 cx25821_stop_upstream_video_ch2(dev);
1778 break;
1779 }
1780
1781 return 0;
1782 }
1783
1784 static long video_ioctl_upstream11(struct file *file, unsigned int cmd,
1785 unsigned long arg)
1786 {
1787 struct cx25821_fh *fh = file->private_data;
1788 struct cx25821_dev *dev = fh->dev;
1789 int command = 0;
1790 struct upstream_user_struct *data_from_user;
1791
1792 data_from_user = (struct upstream_user_struct *)arg;
1793
1794 if (!data_from_user) {
1795 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1796 return 0;
1797 }
1798
1799 command = data_from_user->command;
1800
1801 if (command != UPSTREAM_START_AUDIO && command != UPSTREAM_STOP_AUDIO)
1802 return 0;
1803
1804 dev->input_filename = data_from_user->input_filename;
1805 dev->input_audiofilename = data_from_user->input_filename;
1806 dev->vid_stdname = data_from_user->vid_stdname;
1807 dev->pixel_format = data_from_user->pixel_format;
1808 dev->channel_select = data_from_user->channel_select;
1809 dev->command = data_from_user->command;
1810
1811 switch (command) {
1812 case UPSTREAM_START_AUDIO:
1813 cx25821_start_upstream_audio(dev, data_from_user);
1814 break;
1815
1816 case UPSTREAM_STOP_AUDIO:
1817 cx25821_stop_upstream_audio(dev);
1818 break;
1819 }
1820
1821 return 0;
1822 }
1823
1824 static long video_ioctl_set(struct file *file, unsigned int cmd,
1825 unsigned long arg)
1826 {
1827 struct cx25821_fh *fh = file->private_data;
1828 struct cx25821_dev *dev = fh->dev;
1829 struct downstream_user_struct *data_from_user;
1830 int command;
1831 int width = 720;
1832 int selected_channel = 0, pix_format = 0, i = 0;
1833 int cif_enable = 0, cif_width = 0;
1834 u32 value = 0;
1835
1836 data_from_user = (struct downstream_user_struct *)arg;
1837
1838 if (!data_from_user) {
1839 pr_err("%s(): User data is INVALID. Returning\n", __func__);
1840 return 0;
1841 }
1842
1843 command = data_from_user->command;
1844
1845 if (command != SET_VIDEO_STD && command != SET_PIXEL_FORMAT
1846 && command != ENABLE_CIF_RESOLUTION && command != REG_READ
1847 && command != REG_WRITE && command != MEDUSA_READ
1848 && command != MEDUSA_WRITE) {
1849 return 0;
1850 }
1851
1852 switch (command) {
1853 case SET_VIDEO_STD:
1854 if (!strcmp(data_from_user->vid_stdname, "PAL"))
1855 dev->tvnorm = V4L2_STD_PAL_BG;
1856 else
1857 dev->tvnorm = V4L2_STD_NTSC_M;
1858 medusa_set_videostandard(dev);
1859 break;
1860
1861 case SET_PIXEL_FORMAT:
1862 selected_channel = data_from_user->decoder_select;
1863 pix_format = data_from_user->pixel_format;
1864
1865 if (!(selected_channel <= 7 && selected_channel >= 0)) {
1866 selected_channel -= 4;
1867 selected_channel = selected_channel % 8;
1868 }
1869
1870 if (selected_channel >= 0)
1871 cx25821_set_pixel_format(dev, selected_channel,
1872 pix_format);
1873
1874 break;
1875
1876 case ENABLE_CIF_RESOLUTION:
1877 selected_channel = data_from_user->decoder_select;
1878 cif_enable = data_from_user->cif_resolution_enable;
1879 cif_width = data_from_user->cif_width;
1880
1881 if (cif_enable) {
1882 if (dev->tvnorm & V4L2_STD_PAL_BG
1883 || dev->tvnorm & V4L2_STD_PAL_DK) {
1884 width = 352;
1885 } else {
1886 width = cif_width;
1887 if (cif_width != 320 && cif_width != 352)
1888 width = 320;
1889 }
1890 }
1891
1892 if (!(selected_channel <= 7 && selected_channel >= 0)) {
1893 selected_channel -= 4;
1894 selected_channel = selected_channel % 8;
1895 }
1896
1897 if (selected_channel <= 7 && selected_channel >= 0) {
1898 dev->channels[selected_channel].
1899 use_cif_resolution = cif_enable;
1900 dev->channels[selected_channel].cif_width = width;
1901 } else {
1902 for (i = 0; i < VID_CHANNEL_NUM; i++) {
1903 dev->channels[i].use_cif_resolution =
1904 cif_enable;
1905 dev->channels[i].cif_width = width;
1906 }
1907 }
1908
1909 medusa_set_resolution(dev, width, selected_channel);
1910 break;
1911 case REG_READ:
1912 data_from_user->reg_data = cx_read(data_from_user->reg_address);
1913 break;
1914 case REG_WRITE:
1915 cx_write(data_from_user->reg_address, data_from_user->reg_data);
1916 break;
1917 case MEDUSA_READ:
1918 value = cx25821_i2c_read(&dev->i2c_bus[0],
1919 (u16) data_from_user->reg_address,
1920 &data_from_user->reg_data);
1921 break;
1922 case MEDUSA_WRITE:
1923 cx25821_i2c_write(&dev->i2c_bus[0],
1924 (u16) data_from_user->reg_address,
1925 data_from_user->reg_data);
1926 break;
1927 }
1928
1929 return 0;
1930 }
1931
1932 static long cx25821_video_ioctl(struct file *file,
1933 unsigned int cmd, unsigned long arg)
1934 {
1935 int ret = 0;
1936
1937 struct cx25821_fh *fh = file->private_data;
1938
1939 /* check to see if it's the video upstream */
1940 if (fh->channel_id == SRAM_CH09) {
1941 ret = video_ioctl_upstream9(file, cmd, arg);
1942 return ret;
1943 } else if (fh->channel_id == SRAM_CH10) {
1944 ret = video_ioctl_upstream10(file, cmd, arg);
1945 return ret;
1946 } else if (fh->channel_id == SRAM_CH11) {
1947 ret = video_ioctl_upstream11(file, cmd, arg);
1948 ret = video_ioctl_set(file, cmd, arg);
1949 return ret;
1950 }
1951
1952 return video_ioctl2(file, cmd, arg);
1953 }
1954
1955 /* exported stuff */
1956 static const struct v4l2_file_operations video_fops = {
1957 .owner = THIS_MODULE,
1958 .open = video_open,
1959 .release = video_release,
1960 .read = video_read,
1961 .poll = video_poll,
1962 .mmap = cx25821_video_mmap,
1963 .ioctl = cx25821_video_ioctl,
1964 };
1965
1966 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1967 .vidioc_querycap = cx25821_vidioc_querycap,
1968 .vidioc_enum_fmt_vid_cap = cx25821_vidioc_enum_fmt_vid_cap,
1969 .vidioc_g_fmt_vid_cap = cx25821_vidioc_g_fmt_vid_cap,
1970 .vidioc_try_fmt_vid_cap = cx25821_vidioc_try_fmt_vid_cap,
1971 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1972 .vidioc_reqbufs = cx25821_vidioc_reqbufs,
1973 .vidioc_querybuf = cx25821_vidioc_querybuf,
1974 .vidioc_qbuf = cx25821_vidioc_qbuf,
1975 .vidioc_dqbuf = vidioc_dqbuf,
1976 #ifdef TUNER_FLAG
1977 .vidioc_s_std = cx25821_vidioc_s_std,
1978 .vidioc_querystd = cx25821_vidioc_querystd,
1979 #endif
1980 .vidioc_cropcap = cx25821_vidioc_cropcap,
1981 .vidioc_s_crop = cx25821_vidioc_s_crop,
1982 .vidioc_g_crop = cx25821_vidioc_g_crop,
1983 .vidioc_enum_input = cx25821_vidioc_enum_input,
1984 .vidioc_g_input = cx25821_vidioc_g_input,
1985 .vidioc_s_input = cx25821_vidioc_s_input,
1986 .vidioc_g_ctrl = cx25821_vidioc_g_ctrl,
1987 .vidioc_s_ctrl = vidioc_s_ctrl,
1988 .vidioc_queryctrl = cx25821_vidioc_queryctrl,
1989 .vidioc_streamon = vidioc_streamon,
1990 .vidioc_streamoff = vidioc_streamoff,
1991 .vidioc_log_status = vidioc_log_status,
1992 .vidioc_g_priority = cx25821_vidioc_g_priority,
1993 .vidioc_s_priority = cx25821_vidioc_s_priority,
1994 #ifdef TUNER_FLAG
1995 .vidioc_g_tuner = cx25821_vidioc_g_tuner,
1996 .vidioc_s_tuner = cx25821_vidioc_s_tuner,
1997 .vidioc_g_frequency = cx25821_vidioc_g_frequency,
1998 .vidioc_s_frequency = cx25821_vidioc_s_frequency,
1999 #endif
2000 #ifdef CONFIG_VIDEO_ADV_DEBUG
2001 .vidioc_g_register = cx25821_vidioc_g_register,
2002 .vidioc_s_register = cx25821_vidioc_s_register,
2003 #endif
2004 };
2005
2006 struct video_device cx25821_videoioctl_template = {
2007 .name = "cx25821-videoioctl",
2008 .fops = &video_fops,
2009 .ioctl_ops = &video_ioctl_ops,
2010 .tvnorms = CX25821_NORMS,
2011 .current_norm = V4L2_STD_NTSC_M,
2012 };
Linux kernel - Deliverables
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