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[media] v4l: fix handling of v4l2_input.capabilities
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / staging / cx25821 / cx25821-video.c
blob998c33acf7bd5c4a8391cf26704cba8e7ff347d3
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
105 for (i = 0; i < ARRAY_SIZE(formats); i++)
106 if (formats[i].fourcc == fourcc)
107 return formats + i;
108
109 pr_err("%s(0x%08x) NOT FOUND\n", __func__, fourcc);
110 return NULL;
111 }
112
113 void cx25821_dump_video_queue(struct cx25821_dev *dev, 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
153 do_gettimeofday(&buf->vb.ts);
154 buf->vb.state = VIDEOBUF_DONE;
155 list_del(&buf->vb.queue);
156 wake_up(&buf->vb.done);
157 }
158
159 if (list_empty(&q->active))
160 del_timer(&q->timeout);
161 else
162 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
163 if (bc != 1)
164 pr_err("%s: %d buffers handled (should be 1)\n",
165 __func__, bc);
166 }
167
168 #ifdef TUNER_FLAG
169 int cx25821_set_tvnorm(struct cx25821_dev *dev, v4l2_std_id norm)
170 {
171 dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
172 __func__, (unsigned int)norm, v4l2_norm_to_name(norm));
173
174 dev->tvnorm = norm;
175
176 /* Tell the internal A/V decoder */
177 cx25821_call_all(dev, core, s_std, norm);
178
179 return 0;
180 }
181 #endif
182
183 struct video_device *cx25821_vdev_init(struct cx25821_dev *dev,
184 struct pci_dev *pci,
185 struct video_device *template,
186 char *type)
187 {
188 struct video_device *vfd;
189 dprintk(1, "%s()\n", __func__);
190
191 vfd = video_device_alloc();
192 if (NULL == vfd)
193 return NULL;
194 *vfd = *template;
195 vfd->v4l2_dev = &dev->v4l2_dev;
196 vfd->release = video_device_release;
197 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name, type,
198 cx25821_boards[dev->board].name);
199 video_set_drvdata(vfd, dev);
200 return vfd;
201 }
202
203 /*
204 static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl)
205 {
206 int i;
207
208 if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1)
209 return -EINVAL;
210 for (i = 0; i < CX25821_CTLS; i++)
211 if (cx25821_ctls[i].v.id == qctrl->id)
212 break;
213 if (i == CX25821_CTLS) {
214 *qctrl = no_ctl;
215 return 0;
216 }
217 *qctrl = cx25821_ctls[i].v;
218 return 0;
219 }
220 */
221
222 /* resource management */
223 int cx25821_res_get(struct cx25821_dev *dev, struct cx25821_fh *fh, unsigned int bit)
224 {
225 dprintk(1, "%s()\n", __func__);
226 if (fh->resources & bit)
227 /* have it already allocated */
228 return 1;
229
230 /* is it free? */
231 mutex_lock(&dev->lock);
232 if (dev->channels[fh->channel_id].resources & bit) {
233 /* no, someone else uses it */
234 mutex_unlock(&dev->lock);
235 return 0;
236 }
237 /* it's free, grab it */
238 fh->resources |= bit;
239 dev->channels[fh->channel_id].resources |= bit;
240 dprintk(1, "res: get %d\n", bit);
241 mutex_unlock(&dev->lock);
242 return 1;
243 }
244
245 int cx25821_res_check(struct cx25821_fh *fh, unsigned int bit)
246 {
247 return fh->resources & bit;
248 }
249
250 int cx25821_res_locked(struct cx25821_fh *fh, unsigned int bit)
251 {
252 return fh->dev->channels[fh->channel_id].resources & bit;
253 }
254
255 void cx25821_res_free(struct cx25821_dev *dev, struct cx25821_fh *fh, 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,
416 &dev->channels[channel->i].vidq, 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,
427 channel);
428 spin_unlock(&dev->slock);
429 handled++;
430 }
431 return handled;
432 }
433
434 void cx25821_videoioctl_unregister(struct cx25821_dev *dev)
435 {
436 if (dev->ioctl_dev) {
437 if (video_is_registered(dev->ioctl_dev))
438 video_unregister_device(dev->ioctl_dev);
439 else
440 video_device_release(dev->ioctl_dev);
441
442 dev->ioctl_dev = NULL;
443 }
444 }
445
446 void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num)
447 {
448 cx_clear(PCI_INT_MSK, 1);
449
450 if (dev->channels[chan_num].video_dev) {
451 if (video_is_registered(dev->channels[chan_num].video_dev))
452 video_unregister_device(
453 dev->channels[chan_num].video_dev);
454 else
455 video_device_release(
456 dev->channels[chan_num].video_dev);
457
458 dev->channels[chan_num].video_dev = NULL;
459
460 btcx_riscmem_free(dev->pci,
461 &dev->channels[chan_num].vidq.stopper);
462
463 pr_warn("device %d released!\n", chan_num);
464 }
465
466 }
467
468 int cx25821_video_register(struct cx25821_dev *dev)
469 {
470 int err;
471 int i;
472
473 struct video_device cx25821_video_device = {
474 .name = "cx25821-video",
475 .fops = &video_fops,
476 .minor = -1,
477 .ioctl_ops = &video_ioctl_ops,
478 .tvnorms = CX25821_NORMS,
479 .current_norm = V4L2_STD_NTSC_M,
480 };
481
482 spin_lock_init(&dev->slock);
483
484 for (i = 0; i < MAX_VID_CHANNEL_NUM - 1; ++i) {
485 cx25821_init_controls(dev, i);
486
487 cx25821_risc_stopper(dev->pci,
488 &dev->channels[i].vidq.stopper,
489 dev->channels[i].sram_channels->dma_ctl,
490 0x11, 0);
491
492 dev->channels[i].sram_channels = &cx25821_sram_channels[i];
493 dev->channels[i].video_dev = NULL;
494 dev->channels[i].resources = 0;
495
496 cx_write(dev->channels[i].sram_channels->int_stat,
497 0xffffffff);
498
499 INIT_LIST_HEAD(&dev->channels[i].vidq.active);
500 INIT_LIST_HEAD(&dev->channels[i].vidq.queued);
501
502 dev->channels[i].timeout_data.dev = dev;
503 dev->channels[i].timeout_data.channel =
504 &cx25821_sram_channels[i];
505 dev->channels[i].vidq.timeout.function =
506 cx25821_vid_timeout;
507 dev->channels[i].vidq.timeout.data =
508 (unsigned long)&dev->channels[i].timeout_data;
509 init_timer(&dev->channels[i].vidq.timeout);
510
511 /* register v4l devices */
512 dev->channels[i].video_dev = cx25821_vdev_init(dev,
513 dev->pci, &cx25821_video_device, "video");
514
515 err = video_register_device(dev->channels[i].video_dev,
516 VFL_TYPE_GRABBER, video_nr[dev->nr]);
517
518 if (err < 0)
519 goto fail_unreg;
520
521 }
522
523 /* set PCI interrupt */
524 cx_set(PCI_INT_MSK, 0xff);
525
526 /* initial device configuration */
527 mutex_lock(&dev->lock);
528 #ifdef TUNER_FLAG
529 dev->tvnorm = cx25821_video_device.current_norm;
530 cx25821_set_tvnorm(dev, dev->tvnorm);
531 #endif
532 mutex_unlock(&dev->lock);
533
534
535 return 0;
536
537 fail_unreg:
538 cx25821_video_unregister(dev, i);
539 return err;
540 }
541
542 int cx25821_buffer_setup(struct videobuf_queue *q, unsigned int *count,
543 unsigned int *size)
544 {
545 struct cx25821_fh *fh = q->priv_data;
546
547 *size = fh->fmt->depth * fh->width * fh->height >> 3;
548
549 if (0 == *count)
550 *count = 32;
551
552 if (*size * *count > vid_limit * 1024 * 1024)
553 *count = (vid_limit * 1024 * 1024) / *size;
554
555 return 0;
556 }
557
558 int cx25821_buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
559 enum v4l2_field field)
560 {
561 struct cx25821_fh *fh = q->priv_data;
562 struct cx25821_dev *dev = fh->dev;
563 struct cx25821_buffer *buf =
564 container_of(vb, struct cx25821_buffer, vb);
565 int rc, init_buffer = 0;
566 u32 line0_offset, line1_offset;
567 struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
568 int bpl_local = LINE_SIZE_D1;
569 int channel_opened = fh->channel_id;
570
571 BUG_ON(NULL == fh->fmt);
572 if (fh->width < 48 || fh->width > 720 ||
573 fh->height < 32 || fh->height > 576)
574 return -EINVAL;
575
576 buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
577
578 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
579 return -EINVAL;
580
581 if (buf->fmt != fh->fmt ||
582 buf->vb.width != fh->width ||
583 buf->vb.height != fh->height || buf->vb.field != field) {
584 buf->fmt = fh->fmt;
585 buf->vb.width = fh->width;
586 buf->vb.height = fh->height;
587 buf->vb.field = field;
588 init_buffer = 1;
589 }
590
591 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
592 init_buffer = 1;
593 rc = videobuf_iolock(q, &buf->vb, NULL);
594 if (0 != rc) {
595 printk(KERN_DEBUG pr_fmt("videobuf_iolock failed!\n"));
596 goto fail;
597 }
598 }
599
600 dprintk(1, "init_buffer=%d\n", init_buffer);
601
602 if (init_buffer) {
603
604 channel_opened = dev->channel_opened;
605 channel_opened = (channel_opened < 0
606 || channel_opened > 7) ? 7 : channel_opened;
607
608 if (dev->channels[channel_opened]
609 .pixel_formats == PIXEL_FRMT_411)
610 buf->bpl = (buf->fmt->depth * buf->vb.width) >> 3;
611 else
612 buf->bpl = (buf->fmt->depth >> 3) * (buf->vb.width);
613
614 if (dev->channels[channel_opened]
615 .pixel_formats == PIXEL_FRMT_411) {
616 bpl_local = buf->bpl;
617 } else {
618 bpl_local = buf->bpl; /* Default */
619
620 if (channel_opened >= 0 && channel_opened <= 7) {
621 if (dev->channels[channel_opened]
622 .use_cif_resolution) {
623 if (dev->tvnorm & V4L2_STD_PAL_BG
624 || dev->tvnorm & V4L2_STD_PAL_DK)
625 bpl_local = 352 << 1;
626 else
627 bpl_local =
628 dev->channels[channel_opened].
629 cif_width <<
630 1;
631 }
632 }
633 }
634
635 switch (buf->vb.field) {
636 case V4L2_FIELD_TOP:
637 cx25821_risc_buffer(dev->pci, &buf->risc,
638 dma->sglist, 0, UNSET,
639 buf->bpl, 0, buf->vb.height);
640 break;
641 case V4L2_FIELD_BOTTOM:
642 cx25821_risc_buffer(dev->pci, &buf->risc,
643 dma->sglist, UNSET, 0,
644 buf->bpl, 0, buf->vb.height);
645 break;
646 case V4L2_FIELD_INTERLACED:
647 /* All other formats are top field first */
648 line0_offset = 0;
649 line1_offset = buf->bpl;
650 dprintk(1, "top field first\n");
651
652 cx25821_risc_buffer(dev->pci, &buf->risc,
653 dma->sglist, line0_offset,
654 bpl_local, bpl_local, bpl_local,
655 buf->vb.height >> 1);
656 break;
657 case V4L2_FIELD_SEQ_TB:
658 cx25821_risc_buffer(dev->pci, &buf->risc,
659 dma->sglist,
660 0, buf->bpl * (buf->vb.height >> 1),
661 buf->bpl, 0, buf->vb.height >> 1);
662 break;
663 case V4L2_FIELD_SEQ_BT:
664 cx25821_risc_buffer(dev->pci, &buf->risc,
665 dma->sglist,
666 buf->bpl * (buf->vb.height >> 1), 0,
667 buf->bpl, 0, buf->vb.height >> 1);
668 break;
669 default:
670 BUG();
671 }
672 }
673
674 dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
675 buf, buf->vb.i, fh->width, fh->height, fh->fmt->depth,
676 fh->fmt->name, (unsigned long)buf->risc.dma);
677
678 buf->vb.state = VIDEOBUF_PREPARED;
679
680 return 0;
681
682 fail:
683 cx25821_free_buffer(q, buf);
684 return rc;
685 }
686
687 void cx25821_buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
688 {
689 struct cx25821_buffer *buf =
690 container_of(vb, struct cx25821_buffer, vb);
691
692 cx25821_free_buffer(q, buf);
693 }
694
695 struct videobuf_queue *get_queue(struct cx25821_fh *fh)
696 {
697 switch (fh->type) {
698 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
699 return &fh->vidq;
700 default:
701 BUG();
702 return NULL;
703 }
704 }
705
706 int cx25821_get_resource(struct cx25821_fh *fh, int resource)
707 {
708 switch (fh->type) {
709 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
710 return resource;
711 default:
712 BUG();
713 return 0;
714 }
715 }
716
717 int cx25821_video_mmap(struct file *file, struct vm_area_struct *vma)
718 {
719 struct cx25821_fh *fh = file->private_data;
720
721 return videobuf_mmap_mapper(get_queue(fh), vma);
722 }
723
724
725 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
726 {
727 struct cx25821_buffer *buf =
728 container_of(vb, struct cx25821_buffer, vb);
729 struct cx25821_buffer *prev;
730 struct cx25821_fh *fh = vq->priv_data;
731 struct cx25821_dev *dev = fh->dev;
732 struct cx25821_dmaqueue *q = &dev->channels[fh->channel_id].vidq;
733
734 /* add jump to stopper */
735 buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
736 buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
737 buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
738
739 dprintk(2, "jmp to stopper (0x%x)\n", buf->risc.jmp[1]);
740
741 if (!list_empty(&q->queued)) {
742 list_add_tail(&buf->vb.queue, &q->queued);
743 buf->vb.state = VIDEOBUF_QUEUED;
744 dprintk(2, "[%p/%d] buffer_queue - append to queued\n", buf,
745 buf->vb.i);
746
747 } else if (list_empty(&q->active)) {
748 list_add_tail(&buf->vb.queue, &q->active);
749 cx25821_start_video_dma(dev, q, buf,
750 dev->channels[fh->channel_id].
751 sram_channels);
752 buf->vb.state = VIDEOBUF_ACTIVE;
753 buf->count = q->count++;
754 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
755 dprintk(2,
756 "[%p/%d] buffer_queue - first active, buf cnt = %d, \
757 q->count = %d\n",
758 buf, buf->vb.i, buf->count, q->count);
759 } else {
760 prev =
761 list_entry(q->active.prev, struct cx25821_buffer, vb.queue);
762 if (prev->vb.width == buf->vb.width
763 && prev->vb.height == buf->vb.height
764 && prev->fmt == buf->fmt) {
765 list_add_tail(&buf->vb.queue, &q->active);
766 buf->vb.state = VIDEOBUF_ACTIVE;
767 buf->count = q->count++;
768 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
769
770 /* 64 bit bits 63-32 */
771 prev->risc.jmp[2] = cpu_to_le32(0);
772 dprintk(2,
773 "[%p/%d] buffer_queue - append to active, \
774 buf->count=%d\n",
775 buf, buf->vb.i, buf->count);
776
777 } else {
778 list_add_tail(&buf->vb.queue, &q->queued);
779 buf->vb.state = VIDEOBUF_QUEUED;
780 dprintk(2, "[%p/%d] buffer_queue - first queued\n", buf,
781 buf->vb.i);
782 }
783 }
784
785 if (list_empty(&q->active))
786 dprintk(2, "active queue empty!\n");
787 }
788
789 static struct videobuf_queue_ops cx25821_video_qops = {
790 .buf_setup = cx25821_buffer_setup,
791 .buf_prepare = cx25821_buffer_prepare,
792 .buf_queue = buffer_queue,
793 .buf_release = cx25821_buffer_release,
794 };
795
796 static int video_open(struct file *file)
797 {
798 struct video_device *vdev = video_devdata(file);
799 struct cx25821_dev *h, *dev = video_drvdata(file);
800 struct cx25821_fh *fh;
801 struct list_head *list;
802 int minor = video_devdata(file)->minor;
803 enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
804 u32 pix_format;
805 int ch_id = 0;
806 int i;
807
808 dprintk(1, "open dev=%s type=%s\n",
809 video_device_node_name(vdev),
810 v4l2_type_names[type]);
811
812 /* allocate + initialize per filehandle data */
813 fh = kzalloc(sizeof(*fh), GFP_KERNEL);
814 if (NULL == fh)
815 return -ENOMEM;
816
817 lock_kernel();
818
819 list_for_each(list, &cx25821_devlist)
820 {
821 h = list_entry(list, struct cx25821_dev, devlist);
822
823 for (i = 0; i < MAX_VID_CHANNEL_NUM; i++) {
824 if (h->channels[i].video_dev &&
825 h->channels[i].video_dev->minor == minor) {
826 dev = h;
827 ch_id = i;
828 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
829 }
830 }
831 }
832
833 if (NULL == dev) {
834 unlock_kernel();
835 return -ENODEV;
836 }
837
838 file->private_data = fh;
839 fh->dev = dev;
840 fh->type = type;
841 fh->width = 720;
842 fh->channel_id = ch_id;
843
844 if (dev->tvnorm & V4L2_STD_PAL_BG || dev->tvnorm & V4L2_STD_PAL_DK)
845 fh->height = 576;
846 else
847 fh->height = 480;
848
849 dev->channel_opened = fh->channel_id;
850 pix_format =
851 (dev->channels[ch_id].pixel_formats ==
852 PIXEL_FRMT_411) ? V4L2_PIX_FMT_Y41P : V4L2_PIX_FMT_YUYV;
853 fh->fmt = cx25821_format_by_fourcc(pix_format);
854
855 v4l2_prio_open(&dev->channels[ch_id].prio, &fh->prio);
856
857 videobuf_queue_sg_init(&fh->vidq, &cx25821_video_qops,
858 &dev->pci->dev, &dev->slock,
859 V4L2_BUF_TYPE_VIDEO_CAPTURE,
860 V4L2_FIELD_INTERLACED,
861 sizeof(struct cx25821_buffer), fh, NULL);
862
863 dprintk(1, "post videobuf_queue_init()\n");
864 unlock_kernel();
865
866 return 0;
867 }
868
869 static ssize_t video_read(struct file *file, char __user * data, size_t count,
870 loff_t *ppos)
871 {
872 struct cx25821_fh *fh = file->private_data;
873
874 switch (fh->type) {
875 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
876 if (cx25821_res_locked(fh, RESOURCE_VIDEO0))
877 return -EBUSY;
878
879 return videobuf_read_one(&fh->vidq, data, count, ppos,
880 file->f_flags & O_NONBLOCK);
881
882 default:
883 BUG();
884 return 0;
885 }
886 }
887
888 static unsigned int video_poll(struct file *file,
889 struct poll_table_struct *wait)
890 {
891 struct cx25821_fh *fh = file->private_data;
892 struct cx25821_buffer *buf;
893
894 if (cx25821_res_check(fh, RESOURCE_VIDEO0)) {
895 /* streaming capture */
896 if (list_empty(&fh->vidq.stream))
897 return POLLERR;
898 buf = list_entry(fh->vidq.stream.next,
899 struct cx25821_buffer, vb.stream);
900 } else {
901 /* read() capture */
902 buf = (struct cx25821_buffer *)fh->vidq.read_buf;
903 if (NULL == buf)
904 return POLLERR;
905 }
906
907 poll_wait(file, &buf->vb.done, wait);
908 if (buf->vb.state == VIDEOBUF_DONE || buf->vb.state == VIDEOBUF_ERROR) {
909 if (buf->vb.state == VIDEOBUF_DONE) {
910 struct cx25821_dev *dev = fh->dev;
911
912 if (dev && dev->channels[fh->channel_id]
913 .use_cif_resolution) {
914 u8 cam_id = *((char *)buf->vb.baddr + 3);
915 memcpy((char *)buf->vb.baddr,
916 (char *)buf->vb.baddr + (fh->width * 2),
917 (fh->width * 2));
918 *((char *)buf->vb.baddr + 3) = cam_id;
919 }
920 }
921
922 return POLLIN | POLLRDNORM;
923 }
924
925 return 0;
926 }
927
928 static int video_release(struct file *file)
929 {
930 struct cx25821_fh *fh = file->private_data;
931 struct cx25821_dev *dev = fh->dev;
932
933 /* stop the risc engine and fifo */
934 cx_write(channel0->dma_ctl, 0); /* FIFO and RISC disable */
935
936 /* stop video capture */
937 if (cx25821_res_check(fh, RESOURCE_VIDEO0)) {
938 videobuf_queue_cancel(&fh->vidq);
939 cx25821_res_free(dev, fh, RESOURCE_VIDEO0);
940 }
941
942 if (fh->vidq.read_buf) {
943 cx25821_buffer_release(&fh->vidq, fh->vidq.read_buf);
944 kfree(fh->vidq.read_buf);
945 }
946
947 videobuf_mmap_free(&fh->vidq);
948
949 v4l2_prio_close(&dev->channels[fh->channel_id].prio, fh->prio);
950 file->private_data = NULL;
951 kfree(fh);
952
953 return 0;
954 }
955
956 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
957 {
958 struct cx25821_fh *fh = priv;
959 struct cx25821_dev *dev = fh->dev;
960
961 if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
962 return -EINVAL;
963
964 if (unlikely(i != fh->type))
965 return -EINVAL;
966
967 if (unlikely(!cx25821_res_get(dev, fh,
968 cx25821_get_resource(fh, RESOURCE_VIDEO0))))
969 return -EBUSY;
970
971 return videobuf_streamon(get_queue(fh));
972 }
973
974 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
975 {
976 struct cx25821_fh *fh = priv;
977 struct cx25821_dev *dev = fh->dev;
978 int err, res;
979
980 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
981 return -EINVAL;
982 if (i != fh->type)
983 return -EINVAL;
984
985 res = cx25821_get_resource(fh, RESOURCE_VIDEO0);
986 err = videobuf_streamoff(get_queue(fh));
987 if (err < 0)
988 return err;
989 cx25821_res_free(dev, fh, res);
990 return 0;
991 }
992
993 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
994 struct v4l2_format *f)
995 {
996 struct cx25821_fh *fh = priv;
997 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
998 struct v4l2_mbus_framefmt mbus_fmt;
999 int err;
1000 int pix_format = PIXEL_FRMT_422;
1001
1002 if (fh) {
1003 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1004 .prio, fh->prio);
1005 if (0 != err)
1006 return err;
1007 }
1008
1009 dprintk(2, "%s()\n", __func__);
1010 err = cx25821_vidioc_try_fmt_vid_cap(file, priv, f);
1011
1012 if (0 != err)
1013 return err;
1014
1015 fh->fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
1016 fh->vidq.field = f->fmt.pix.field;
1017
1018 /* check if width and height is valid based on set standard */
1019 if (cx25821_is_valid_width(f->fmt.pix.width, dev->tvnorm))
1020 fh->width = f->fmt.pix.width;
1021
1022 if (cx25821_is_valid_height(f->fmt.pix.height, dev->tvnorm))
1023 fh->height = f->fmt.pix.height;
1024
1025 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_Y41P)
1026 pix_format = PIXEL_FRMT_411;
1027 else if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV)
1028 pix_format = PIXEL_FRMT_422;
1029 else
1030 return -EINVAL;
1031
1032 cx25821_set_pixel_format(dev, SRAM_CH00, pix_format);
1033
1034 /* check if cif resolution */
1035 if (fh->width == 320 || fh->width == 352)
1036 dev->channels[fh->channel_id].use_cif_resolution = 1;
1037 else
1038 dev->channels[fh->channel_id].use_cif_resolution = 0;
1039
1040 dev->channels[fh->channel_id].cif_width = fh->width;
1041 medusa_set_resolution(dev, fh->width, SRAM_CH00);
1042
1043 dprintk(2, "%s(): width=%d height=%d field=%d\n", __func__, fh->width,
1044 fh->height, fh->vidq.field);
1045 v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
1046 cx25821_call_all(dev, video, s_mbus_fmt, &mbus_fmt);
1047
1048 return 0;
1049 }
1050
1051 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1052 {
1053 int ret_val = 0;
1054 struct cx25821_fh *fh = priv;
1055 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1056
1057 ret_val = videobuf_dqbuf(get_queue(fh), p, file->f_flags & O_NONBLOCK);
1058
1059 p->sequence = dev->channels[fh->channel_id].vidq.count;
1060
1061 return ret_val;
1062 }
1063
1064 static int vidioc_log_status(struct file *file, void *priv)
1065 {
1066 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1067 struct cx25821_fh *fh = priv;
1068 char name[32 + 2];
1069
1070 struct sram_channel *sram_ch = dev->channels[fh->channel_id]
1071 .sram_channels;
1072 u32 tmp = 0;
1073
1074 snprintf(name, sizeof(name), "%s/2", dev->name);
1075 pr_info("%s/2: ============ START LOG STATUS ============\n",
1076 dev->name);
1077 cx25821_call_all(dev, core, log_status);
1078 tmp = cx_read(sram_ch->dma_ctl);
1079 pr_info("Video input 0 is %s\n",
1080 (tmp & 0x11) ? "streaming" : "stopped");
1081 pr_info("%s/2: ============= END LOG STATUS =============\n",
1082 dev->name);
1083 return 0;
1084 }
1085
1086 static int vidioc_s_ctrl(struct file *file, void *priv,
1087 struct v4l2_control *ctl)
1088 {
1089 struct cx25821_fh *fh = priv;
1090 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1091 int err;
1092
1093 if (fh) {
1094 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1095 .prio, fh->prio);
1096 if (0 != err)
1097 return err;
1098 }
1099
1100 return cx25821_set_control(dev, ctl, fh->channel_id);
1101 }
1102
1103 /* VIDEO IOCTLS */
1104 int cx25821_vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f)
1105 {
1106 struct cx25821_fh *fh = priv;
1107
1108 f->fmt.pix.width = fh->width;
1109 f->fmt.pix.height = fh->height;
1110 f->fmt.pix.field = fh->vidq.field;
1111 f->fmt.pix.pixelformat = fh->fmt->fourcc;
1112 f->fmt.pix.bytesperline = (f->fmt.pix.width * fh->fmt->depth) >> 3;
1113 f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
1114
1115 return 0;
1116 }
1117
1118 int cx25821_vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f)
1119 {
1120 struct cx25821_fmt *fmt;
1121 enum v4l2_field field;
1122 unsigned int maxw, maxh;
1123
1124 fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
1125 if (NULL == fmt)
1126 return -EINVAL;
1127
1128 field = f->fmt.pix.field;
1129 maxw = 720;
1130 maxh = 576;
1131
1132 if (V4L2_FIELD_ANY == field) {
1133 field = (f->fmt.pix.height > maxh / 2)
1134 ? V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP;
1135 }
1136
1137 switch (field) {
1138 case V4L2_FIELD_TOP:
1139 case V4L2_FIELD_BOTTOM:
1140 maxh = maxh / 2;
1141 break;
1142 case V4L2_FIELD_INTERLACED:
1143 break;
1144 default:
1145 return -EINVAL;
1146 }
1147
1148 f->fmt.pix.field = field;
1149 if (f->fmt.pix.height < 32)
1150 f->fmt.pix.height = 32;
1151 if (f->fmt.pix.height > maxh)
1152 f->fmt.pix.height = maxh;
1153 if (f->fmt.pix.width < 48)
1154 f->fmt.pix.width = 48;
1155 if (f->fmt.pix.width > maxw)
1156 f->fmt.pix.width = maxw;
1157 f->fmt.pix.width &= ~0x03;
1158 f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3;
1159 f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
1160
1161 return 0;
1162 }
1163
1164 int cx25821_vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap)
1165 {
1166 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1167
1168 strcpy(cap->driver, "cx25821");
1169 strlcpy(cap->card, cx25821_boards[dev->board].name, sizeof(cap->card));
1170 sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1171 cap->version = CX25821_VERSION_CODE;
1172 cap->capabilities =
1173 V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
1174 if (UNSET != dev->tuner_type)
1175 cap->capabilities |= V4L2_CAP_TUNER;
1176 return 0;
1177 }
1178
1179 int cx25821_vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1180 struct v4l2_fmtdesc *f)
1181 {
1182 if (unlikely(f->index >= ARRAY_SIZE(formats)))
1183 return -EINVAL;
1184
1185 strlcpy(f->description, formats[f->index].name, sizeof(f->description));
1186 f->pixelformat = formats[f->index].fourcc;
1187
1188 return 0;
1189 }
1190
1191 int cx25821_vidioc_reqbufs(struct file *file, void *priv, 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, struct v4l2_buffer *p)
1198 {
1199 struct cx25821_fh *fh = priv;
1200 return videobuf_querybuf(get_queue(fh), p);
1201 }
1202
1203 int cx25821_vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1204 {
1205 struct cx25821_fh *fh = priv;
1206 return videobuf_qbuf(get_queue(fh), p);
1207 }
1208
1209 int cx25821_vidioc_g_priority(struct file *file, void *f, enum v4l2_priority *p)
1210 {
1211 struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev;
1212 struct cx25821_fh *fh = f;
1213
1214 *p = v4l2_prio_max(&dev->channels[fh->channel_id].prio);
1215
1216 return 0;
1217 }
1218
1219 int cx25821_vidioc_s_priority(struct file *file, void *f, enum v4l2_priority prio)
1220 {
1221 struct cx25821_fh *fh = f;
1222 struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev;
1223
1224 return v4l2_prio_change(&dev->channels[fh->channel_id]
1225 .prio, &fh->prio, prio);
1226 }
1227
1228 #ifdef TUNER_FLAG
1229 int cx25821_vidioc_s_std(struct file *file, void *priv, v4l2_std_id * tvnorms)
1230 {
1231 struct cx25821_fh *fh = priv;
1232 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1233 int err;
1234
1235 dprintk(1, "%s()\n", __func__);
1236
1237 if (fh) {
1238 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1239 .prio, fh->prio);
1240 if (0 != err)
1241 return err;
1242 }
1243
1244 if (dev->tvnorm == *tvnorms) {
1245 return 0;
1246 }
1247
1248 mutex_lock(&dev->lock);
1249 cx25821_set_tvnorm(dev, *tvnorms);
1250 mutex_unlock(&dev->lock);
1251
1252 medusa_set_videostandard(dev);
1253
1254 return 0;
1255 }
1256 #endif
1257
1258 int cx25821_enum_input(struct cx25821_dev *dev, struct v4l2_input *i)
1259 {
1260 static const char *iname[] = {
1261 [CX25821_VMUX_COMPOSITE] = "Composite",
1262 [CX25821_VMUX_SVIDEO] = "S-Video",
1263 [CX25821_VMUX_DEBUG] = "for debug only",
1264 };
1265 unsigned int n;
1266 dprintk(1, "%s()\n", __func__);
1267
1268 n = i->index;
1269 if (n >= 2)
1270 return -EINVAL;
1271
1272 if (0 == INPUT(n)->type)
1273 return -EINVAL;
1274
1275 i->type = V4L2_INPUT_TYPE_CAMERA;
1276 strcpy(i->name, iname[INPUT(n)->type]);
1277
1278 i->std = CX25821_NORMS;
1279 return 0;
1280 }
1281
1282 int cx25821_vidioc_enum_input(struct file *file, void *priv, struct v4l2_input *i)
1283 {
1284 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1285 dprintk(1, "%s()\n", __func__);
1286 return cx25821_enum_input(dev, i);
1287 }
1288
1289 int cx25821_vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1290 {
1291 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1292
1293 *i = dev->input;
1294 dprintk(1, "%s(): returns %d\n", __func__, *i);
1295 return 0;
1296 }
1297
1298 int cx25821_vidioc_s_input(struct file *file, void *priv, unsigned int i)
1299 {
1300 struct cx25821_fh *fh = priv;
1301 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1302 int err;
1303
1304 dprintk(1, "%s(%d)\n", __func__, i);
1305
1306 if (fh) {
1307 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1308 .prio, fh->prio);
1309 if (0 != err)
1310 return err;
1311 }
1312
1313 if (i > 2) {
1314 dprintk(1, "%s(): -EINVAL\n", __func__);
1315 return -EINVAL;
1316 }
1317
1318 mutex_lock(&dev->lock);
1319 cx25821_video_mux(dev, i);
1320 mutex_unlock(&dev->lock);
1321 return 0;
1322 }
1323
1324 #ifdef TUNER_FLAG
1325 int cx25821_vidioc_g_frequency(struct file *file, void *priv, struct v4l2_frequency *f)
1326 {
1327 struct cx25821_fh *fh = priv;
1328 struct cx25821_dev *dev = fh->dev;
1329
1330 f->frequency = dev->freq;
1331
1332 cx25821_call_all(dev, tuner, g_frequency, f);
1333
1334 return 0;
1335 }
1336
1337 int cx25821_set_freq(struct cx25821_dev *dev, struct v4l2_frequency *f)
1338 {
1339 mutex_lock(&dev->lock);
1340 dev->freq = f->frequency;
1341
1342 cx25821_call_all(dev, tuner, s_frequency, f);
1343
1344 /* When changing channels it is required to reset TVAUDIO */
1345 msleep(10);
1346
1347 mutex_unlock(&dev->lock);
1348
1349 return 0;
1350 }
1351
1352 int cx25821_vidioc_s_frequency(struct file *file, void *priv, struct v4l2_frequency *f)
1353 {
1354 struct cx25821_fh *fh = priv;
1355 struct cx25821_dev *dev;
1356 int err;
1357
1358 if (fh) {
1359 dev = fh->dev;
1360 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1361 .prio, fh->prio);
1362 if (0 != err)
1363 return err;
1364 } else {
1365 pr_err("Invalid fh pointer!\n");
1366 return -EINVAL;
1367 }
1368
1369 return cx25821_set_freq(dev, f);
1370 }
1371 #endif
1372
1373 #ifdef CONFIG_VIDEO_ADV_DEBUG
1374 int cx25821_vidioc_g_register(struct file *file, void *fh,
1375 struct v4l2_dbg_register *reg)
1376 {
1377 struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev;
1378
1379 if (!v4l2_chip_match_host(&reg->match))
1380 return -EINVAL;
1381
1382 cx25821_call_all(dev, core, g_register, reg);
1383
1384 return 0;
1385 }
1386
1387 int cx25821_vidioc_s_register(struct file *file, void *fh,
1388 struct v4l2_dbg_register *reg)
1389 {
1390 struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev;
1391
1392 if (!v4l2_chip_match_host(&reg->match))
1393 return -EINVAL;
1394
1395 cx25821_call_all(dev, core, s_register, reg);
1396
1397 return 0;
1398 }
1399
1400 #endif
1401
1402 #ifdef TUNER_FLAG
1403 int cx25821_vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1404 {
1405 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1406
1407 if (unlikely(UNSET == dev->tuner_type))
1408 return -EINVAL;
1409 if (0 != t->index)
1410 return -EINVAL;
1411
1412 strcpy(t->name, "Television");
1413 t->type = V4L2_TUNER_ANALOG_TV;
1414 t->capability = V4L2_TUNER_CAP_NORM;
1415 t->rangehigh = 0xffffffffUL;
1416
1417 t->signal = 0xffff; /* LOCKED */
1418 return 0;
1419 }
1420
1421 int cx25821_vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1422 {
1423 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1424 struct cx25821_fh *fh = priv;
1425 int err;
1426
1427 if (fh) {
1428 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1429 .prio, fh->prio);
1430 if (0 != err)
1431 return err;
1432 }
1433
1434 dprintk(1, "%s()\n", __func__);
1435 if (UNSET == dev->tuner_type)
1436 return -EINVAL;
1437 if (0 != t->index)
1438 return -EINVAL;
1439
1440 return 0;
1441 }
1442
1443 #endif
1444 /*****************************************************************************/
1445 static const struct v4l2_queryctrl no_ctl = {
1446 .name = "42",
1447 .flags = V4L2_CTRL_FLAG_DISABLED,
1448 };
1449
1450 static struct v4l2_queryctrl cx25821_ctls[] = {
1451 /* --- video --- */
1452 {
1453 .id = V4L2_CID_BRIGHTNESS,
1454 .name = "Brightness",
1455 .minimum = 0,
1456 .maximum = 10000,
1457 .step = 1,
1458 .default_value = 6200,
1459 .type = V4L2_CTRL_TYPE_INTEGER,
1460 }, {
1461 .id = V4L2_CID_CONTRAST,
1462 .name = "Contrast",
1463 .minimum = 0,
1464 .maximum = 10000,
1465 .step = 1,
1466 .default_value = 5000,
1467 .type = V4L2_CTRL_TYPE_INTEGER,
1468 }, {
1469 .id = V4L2_CID_SATURATION,
1470 .name = "Saturation",
1471 .minimum = 0,
1472 .maximum = 10000,
1473 .step = 1,
1474 .default_value = 5000,
1475 .type = V4L2_CTRL_TYPE_INTEGER,
1476 }, {
1477 .id = V4L2_CID_HUE,
1478 .name = "Hue",
1479 .minimum = 0,
1480 .maximum = 10000,
1481 .step = 1,
1482 .default_value = 5000,
1483 .type = V4L2_CTRL_TYPE_INTEGER,
1484 }
1485 };
1486 static const int CX25821_CTLS = ARRAY_SIZE(cx25821_ctls);
1487
1488 static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl)
1489 {
1490 int i;
1491
1492 if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1)
1493 return -EINVAL;
1494 for (i = 0; i < CX25821_CTLS; i++)
1495 if (cx25821_ctls[i].id == qctrl->id)
1496 break;
1497 if (i == CX25821_CTLS) {
1498 *qctrl = no_ctl;
1499 return 0;
1500 }
1501 *qctrl = cx25821_ctls[i];
1502 return 0;
1503 }
1504
1505 int cx25821_vidioc_queryctrl(struct file *file, void *priv,
1506 struct v4l2_queryctrl *qctrl)
1507 {
1508 return cx25821_ctrl_query(qctrl);
1509 }
1510
1511 /* ------------------------------------------------------------------ */
1512 /* VIDEO CTRL IOCTLS */
1513
1514 static const struct v4l2_queryctrl *ctrl_by_id(unsigned int id)
1515 {
1516 unsigned int i;
1517
1518 for (i = 0; i < CX25821_CTLS; i++)
1519 if (cx25821_ctls[i].id == id)
1520 return cx25821_ctls + i;
1521 return NULL;
1522 }
1523
1524 int cx25821_vidioc_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctl)
1525 {
1526 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1527 struct cx25821_fh *fh = priv;
1528
1529 const struct v4l2_queryctrl *ctrl;
1530
1531 ctrl = ctrl_by_id(ctl->id);
1532
1533 if (NULL == ctrl)
1534 return -EINVAL;
1535 switch (ctl->id) {
1536 case V4L2_CID_BRIGHTNESS:
1537 ctl->value = dev->channels[fh->channel_id].ctl_bright;
1538 break;
1539 case V4L2_CID_HUE:
1540 ctl->value = dev->channels[fh->channel_id].ctl_hue;
1541 break;
1542 case V4L2_CID_CONTRAST:
1543 ctl->value = dev->channels[fh->channel_id].ctl_contrast;
1544 break;
1545 case V4L2_CID_SATURATION:
1546 ctl->value = dev->channels[fh->channel_id].ctl_saturation;
1547 break;
1548 }
1549 return 0;
1550 }
1551
1552 int cx25821_set_control(struct cx25821_dev *dev,
1553 struct v4l2_control *ctl, int chan_num)
1554 {
1555 int err;
1556 const struct v4l2_queryctrl *ctrl;
1557
1558 err = -EINVAL;
1559
1560 ctrl = ctrl_by_id(ctl->id);
1561
1562 if (NULL == ctrl)
1563 return err;
1564
1565 switch (ctrl->type) {
1566 case V4L2_CTRL_TYPE_BOOLEAN:
1567 case V4L2_CTRL_TYPE_MENU:
1568 case V4L2_CTRL_TYPE_INTEGER:
1569 if (ctl->value < ctrl->minimum)
1570 ctl->value = ctrl->minimum;
1571 if (ctl->value > ctrl->maximum)
1572 ctl->value = ctrl->maximum;
1573 break;
1574 default:
1575 /* nothing */ ;
1576 };
1577
1578 switch (ctl->id) {
1579 case V4L2_CID_BRIGHTNESS:
1580 dev->channels[chan_num].ctl_bright = ctl->value;
1581 medusa_set_brightness(dev, ctl->value, chan_num);
1582 break;
1583 case V4L2_CID_HUE:
1584 dev->channels[chan_num].ctl_hue = ctl->value;
1585 medusa_set_hue(dev, ctl->value, chan_num);
1586 break;
1587 case V4L2_CID_CONTRAST:
1588 dev->channels[chan_num].ctl_contrast = ctl->value;
1589 medusa_set_contrast(dev, ctl->value, chan_num);
1590 break;
1591 case V4L2_CID_SATURATION:
1592 dev->channels[chan_num].ctl_saturation = ctl->value;
1593 medusa_set_saturation(dev, ctl->value, chan_num);
1594 break;
1595 }
1596
1597 err = 0;
1598
1599 return err;
1600 }
1601
1602 static void cx25821_init_controls(struct cx25821_dev *dev, int chan_num)
1603 {
1604 struct v4l2_control ctrl;
1605 int i;
1606 for (i = 0; i < CX25821_CTLS; i++) {
1607 ctrl.id = cx25821_ctls[i].id;
1608 ctrl.value = cx25821_ctls[i].default_value;
1609
1610 cx25821_set_control(dev, &ctrl, chan_num);
1611 }
1612 }
1613
1614 int cx25821_vidioc_cropcap(struct file *file, void *priv, struct v4l2_cropcap *cropcap)
1615 {
1616 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1617
1618 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1619 return -EINVAL;
1620 cropcap->bounds.top = cropcap->bounds.left = 0;
1621 cropcap->bounds.width = 720;
1622 cropcap->bounds.height = dev->tvnorm == V4L2_STD_PAL_BG ? 576 : 480;
1623 cropcap->pixelaspect.numerator =
1624 dev->tvnorm == V4L2_STD_PAL_BG ? 59 : 10;
1625 cropcap->pixelaspect.denominator =
1626 dev->tvnorm == V4L2_STD_PAL_BG ? 54 : 11;
1627 cropcap->defrect = cropcap->bounds;
1628 return 0;
1629 }
1630
1631 int cx25821_vidioc_s_crop(struct file *file, void *priv, struct v4l2_crop *crop)
1632 {
1633 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1634 struct cx25821_fh *fh = priv;
1635 int err;
1636
1637 if (fh) {
1638 err = v4l2_prio_check(&dev->channels[fh->channel_id].
1639 prio, fh->prio);
1640 if (0 != err)
1641 return err;
1642 }
1643 /* cx25821_vidioc_s_crop not supported */
1644 return -EINVAL;
1645 }
1646
1647 int cx25821_vidioc_g_crop(struct file *file, void *priv, struct v4l2_crop *crop)
1648 {
1649 /* cx25821_vidioc_g_crop not supported */
1650 return -EINVAL;
1651 }
1652
1653 int cx25821_vidioc_querystd(struct file *file, void *priv, v4l2_std_id * norm)
1654 {
1655 /* medusa does not support video standard sensing of current input */
1656 *norm = CX25821_NORMS;
1657
1658 return 0;
1659 }
1660
1661 int cx25821_is_valid_width(u32 width, v4l2_std_id tvnorm)
1662 {
1663 if (tvnorm == V4L2_STD_PAL_BG) {
1664 if (width == 352 || width == 720)
1665 return 1;
1666 else
1667 return 0;
1668 }
1669
1670 if (tvnorm == V4L2_STD_NTSC_M) {
1671 if (width == 320 || width == 352 || width == 720)
1672 return 1;
1673 else
1674 return 0;
1675 }
1676 return 0;
1677 }
1678
1679 int cx25821_is_valid_height(u32 height, v4l2_std_id tvnorm)
1680 {
1681 if (tvnorm == V4L2_STD_PAL_BG) {
1682 if (height == 576 || height == 288)
1683 return 1;
1684 else
1685 return 0;
1686 }
1687
1688 if (tvnorm == V4L2_STD_NTSC_M) {
1689 if (height == 480 || height == 240)
1690 return 1;
1691 else
1692 return 0;
1693 }
1694
1695 return 0;
1696 }
1697
1698 static long video_ioctl_upstream9(struct file *file, unsigned int cmd,
1699 unsigned long arg)
1700 {
1701 struct cx25821_fh *fh = file->private_data;
1702 struct cx25821_dev *dev = fh->dev;
1703 int command = 0;
1704 struct upstream_user_struct *data_from_user;
1705
1706 data_from_user = (struct upstream_user_struct *)arg;
1707
1708 if (!data_from_user) {
1709 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1710 return 0;
1711 }
1712
1713 command = data_from_user->command;
1714
1715 if (command != UPSTREAM_START_VIDEO &&
1716 command != UPSTREAM_STOP_VIDEO)
1717 return 0;
1718
1719 dev->input_filename = data_from_user->input_filename;
1720 dev->input_audiofilename = data_from_user->input_filename;
1721 dev->vid_stdname = data_from_user->vid_stdname;
1722 dev->pixel_format = data_from_user->pixel_format;
1723 dev->channel_select = data_from_user->channel_select;
1724 dev->command = data_from_user->command;
1725
1726 switch (command) {
1727 case UPSTREAM_START_VIDEO:
1728 cx25821_start_upstream_video_ch1(dev, data_from_user);
1729 break;
1730
1731 case UPSTREAM_STOP_VIDEO:
1732 cx25821_stop_upstream_video_ch1(dev);
1733 break;
1734 }
1735
1736 return 0;
1737 }
1738
1739 static long video_ioctl_upstream10(struct file *file, unsigned int cmd,
1740 unsigned long arg)
1741 {
1742 struct cx25821_fh *fh = file->private_data;
1743 struct cx25821_dev *dev = fh->dev;
1744 int command = 0;
1745 struct upstream_user_struct *data_from_user;
1746
1747 data_from_user = (struct upstream_user_struct *)arg;
1748
1749 if (!data_from_user) {
1750 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1751 return 0;
1752 }
1753
1754 command = data_from_user->command;
1755
1756 if (command != UPSTREAM_START_VIDEO &&
1757 command != UPSTREAM_STOP_VIDEO)
1758 return 0;
1759
1760 dev->input_filename_ch2 = data_from_user->input_filename;
1761 dev->input_audiofilename = data_from_user->input_filename;
1762 dev->vid_stdname_ch2 = data_from_user->vid_stdname;
1763 dev->pixel_format_ch2 = data_from_user->pixel_format;
1764 dev->channel_select_ch2 = data_from_user->channel_select;
1765 dev->command_ch2 = data_from_user->command;
1766
1767 switch (command) {
1768 case UPSTREAM_START_VIDEO:
1769 cx25821_start_upstream_video_ch2(dev, data_from_user);
1770 break;
1771
1772 case UPSTREAM_STOP_VIDEO:
1773 cx25821_stop_upstream_video_ch2(dev);
1774 break;
1775 }
1776
1777 return 0;
1778 }
1779
1780 static long video_ioctl_upstream11(struct file *file, unsigned int cmd,
1781 unsigned long arg)
1782 {
1783 struct cx25821_fh *fh = file->private_data;
1784 struct cx25821_dev *dev = fh->dev;
1785 int command = 0;
1786 struct upstream_user_struct *data_from_user;
1787
1788 data_from_user = (struct upstream_user_struct *)arg;
1789
1790 if (!data_from_user) {
1791 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1792 return 0;
1793 }
1794
1795 command = data_from_user->command;
1796
1797 if (command != UPSTREAM_START_AUDIO &&
1798 command != UPSTREAM_STOP_AUDIO)
1799 return 0;
1800
1801 dev->input_filename = data_from_user->input_filename;
1802 dev->input_audiofilename = data_from_user->input_filename;
1803 dev->vid_stdname = data_from_user->vid_stdname;
1804 dev->pixel_format = data_from_user->pixel_format;
1805 dev->channel_select = data_from_user->channel_select;
1806 dev->command = data_from_user->command;
1807
1808 switch (command) {
1809 case UPSTREAM_START_AUDIO:
1810 cx25821_start_upstream_audio(dev, data_from_user);
1811 break;
1812
1813 case UPSTREAM_STOP_AUDIO:
1814 cx25821_stop_upstream_audio(dev);
1815 break;
1816 }
1817
1818 return 0;
1819 }
1820
1821 static long video_ioctl_set(struct file *file, unsigned int cmd,
1822 unsigned long arg)
1823 {
1824 struct cx25821_fh *fh = file->private_data;
1825 struct cx25821_dev *dev = fh->dev;
1826 struct downstream_user_struct *data_from_user;
1827 int command;
1828 int width = 720;
1829 int selected_channel = 0, pix_format = 0, i = 0;
1830 int cif_enable = 0, cif_width = 0;
1831 u32 value = 0;
1832
1833 data_from_user = (struct downstream_user_struct *)arg;
1834
1835 if (!data_from_user) {
1836 pr_err("%s(): User data is INVALID. Returning\n", __func__);
1837 return 0;
1838 }
1839
1840 command = data_from_user->command;
1841
1842 if (command != SET_VIDEO_STD && command != SET_PIXEL_FORMAT
1843 && command != ENABLE_CIF_RESOLUTION && command != REG_READ
1844 && command != REG_WRITE && command != MEDUSA_READ
1845 && command != MEDUSA_WRITE) {
1846 return 0;
1847 }
1848
1849 switch (command) {
1850 case SET_VIDEO_STD:
1851 dev->tvnorm =
1852 !strcmp(data_from_user->vid_stdname,
1853 "PAL") ? V4L2_STD_PAL_BG : V4L2_STD_NTSC_M;
1854 medusa_set_videostandard(dev);
1855 break;
1856
1857 case SET_PIXEL_FORMAT:
1858 selected_channel = data_from_user->decoder_select;
1859 pix_format = data_from_user->pixel_format;
1860
1861 if (!(selected_channel <= 7 && selected_channel >= 0)) {
1862 selected_channel -= 4;
1863 selected_channel = selected_channel % 8;
1864 }
1865
1866 if (selected_channel >= 0)
1867 cx25821_set_pixel_format(dev, selected_channel,
1868 pix_format);
1869
1870 break;
1871
1872 case ENABLE_CIF_RESOLUTION:
1873 selected_channel = data_from_user->decoder_select;
1874 cif_enable = data_from_user->cif_resolution_enable;
1875 cif_width = data_from_user->cif_width;
1876
1877 if (cif_enable) {
1878 if (dev->tvnorm & V4L2_STD_PAL_BG
1879 || dev->tvnorm & V4L2_STD_PAL_DK)
1880 width = 352;
1881 else
1882 width = (cif_width == 320
1883 || cif_width == 352) ? cif_width : 320;
1884 }
1885
1886 if (!(selected_channel <= 7 && selected_channel >= 0)) {
1887 selected_channel -= 4;
1888 selected_channel = selected_channel % 8;
1889 }
1890
1891 if (selected_channel <= 7 && selected_channel >= 0) {
1892 dev->channels[selected_channel].
1893 use_cif_resolution = cif_enable;
1894 dev->channels[selected_channel].cif_width = width;
1895 } else {
1896 for (i = 0; i < VID_CHANNEL_NUM; i++) {
1897 dev->channels[i].use_cif_resolution =
1898 cif_enable;
1899 dev->channels[i].cif_width = width;
1900 }
1901 }
1902
1903 medusa_set_resolution(dev, width, selected_channel);
1904 break;
1905 case REG_READ:
1906 data_from_user->reg_data = cx_read(data_from_user->reg_address);
1907 break;
1908 case REG_WRITE:
1909 cx_write(data_from_user->reg_address, data_from_user->reg_data);
1910 break;
1911 case MEDUSA_READ:
1912 value =
1913 cx25821_i2c_read(&dev->i2c_bus[0],
1914 (u16) data_from_user->reg_address,
1915 &data_from_user->reg_data);
1916 break;
1917 case MEDUSA_WRITE:
1918 cx25821_i2c_write(&dev->i2c_bus[0],
1919 (u16) data_from_user->reg_address,
1920 data_from_user->reg_data);
1921 break;
1922 }
1923
1924 return 0;
1925 }
1926
1927 static long cx25821_video_ioctl(struct file *file,
1928 unsigned int cmd, unsigned long arg)
1929 {
1930 int ret = 0;
1931
1932 struct cx25821_fh *fh = file->private_data;
1933
1934 /* check to see if it's the video upstream */
1935 if (fh->channel_id == SRAM_CH09) {
1936 ret = video_ioctl_upstream9(file, cmd, arg);
1937 return ret;
1938 } else if (fh->channel_id == SRAM_CH10) {
1939 ret = video_ioctl_upstream10(file, cmd, arg);
1940 return ret;
1941 } else if (fh->channel_id == SRAM_CH11) {
1942 ret = video_ioctl_upstream11(file, cmd, arg);
1943 ret = video_ioctl_set(file, cmd, arg);
1944 return ret;
1945 }
1946
1947 return video_ioctl2(file, cmd, arg);
1948 }
1949
1950 /* exported stuff */
1951 static const struct v4l2_file_operations video_fops = {
1952 .owner = THIS_MODULE,
1953 .open = video_open,
1954 .release = video_release,
1955 .read = video_read,
1956 .poll = video_poll,
1957 .mmap = cx25821_video_mmap,
1958 .ioctl = cx25821_video_ioctl,
1959 };
1960
1961 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1962 .vidioc_querycap = cx25821_vidioc_querycap,
1963 .vidioc_enum_fmt_vid_cap = cx25821_vidioc_enum_fmt_vid_cap,
1964 .vidioc_g_fmt_vid_cap = cx25821_vidioc_g_fmt_vid_cap,
1965 .vidioc_try_fmt_vid_cap = cx25821_vidioc_try_fmt_vid_cap,
1966 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1967 .vidioc_reqbufs = cx25821_vidioc_reqbufs,
1968 .vidioc_querybuf = cx25821_vidioc_querybuf,
1969 .vidioc_qbuf = cx25821_vidioc_qbuf,
1970 .vidioc_dqbuf = vidioc_dqbuf,
1971 #ifdef TUNER_FLAG
1972 .vidioc_s_std = cx25821_vidioc_s_std,
1973 .vidioc_querystd = cx25821_vidioc_querystd,
1974 #endif
1975 .vidioc_cropcap = cx25821_vidioc_cropcap,
1976 .vidioc_s_crop = cx25821_vidioc_s_crop,
1977 .vidioc_g_crop = cx25821_vidioc_g_crop,
1978 .vidioc_enum_input = cx25821_vidioc_enum_input,
1979 .vidioc_g_input = cx25821_vidioc_g_input,
1980 .vidioc_s_input = cx25821_vidioc_s_input,
1981 .vidioc_g_ctrl = cx25821_vidioc_g_ctrl,
1982 .vidioc_s_ctrl = vidioc_s_ctrl,
1983 .vidioc_queryctrl = cx25821_vidioc_queryctrl,
1984 .vidioc_streamon = vidioc_streamon,
1985 .vidioc_streamoff = vidioc_streamoff,
1986 .vidioc_log_status = vidioc_log_status,
1987 .vidioc_g_priority = cx25821_vidioc_g_priority,
1988 .vidioc_s_priority = cx25821_vidioc_s_priority,
1989 #ifdef TUNER_FLAG
1990 .vidioc_g_tuner = cx25821_vidioc_g_tuner,
1991 .vidioc_s_tuner = cx25821_vidioc_s_tuner,
1992 .vidioc_g_frequency = cx25821_vidioc_g_frequency,
1993 .vidioc_s_frequency = cx25821_vidioc_s_frequency,
1994 #endif
1995 #ifdef CONFIG_VIDEO_ADV_DEBUG
1996 .vidioc_g_register = cx25821_vidioc_g_register,
1997 .vidioc_s_register = cx25821_vidioc_s_register,
1998 #endif
1999 };
2000
2001 struct video_device cx25821_videoioctl_template = {
2002 .name = "cx25821-videoioctl",
2003 .fops = &video_fops,
2004 .ioctl_ops = &video_ioctl_ops,
2005 .tvnorms = CX25821_NORMS,
2006 .current_norm = V4L2_STD_NTSC_M,
2007 };
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree