2 * Driver for the Conexant CX25821 PCIe bridge
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> cx25821 driver
7 * Parts adapted/taken from Eduardo Moscoso Rubino
8 * Copyright (C) 2009 Eduardo Moscoso Rubino <moscoso@TopoLogica.com>
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.
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
20 * GNU General Public License for more details.
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.
27 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
29 #include "cx25821-video.h"
31 MODULE_DESCRIPTION("v4l2 driver module for cx25821 based TV cards");
32 MODULE_AUTHOR("Hiep Huynh <hiep.huynh@conexant.com>");
33 MODULE_LICENSE("GPL");
35 static unsigned int video_nr[] = {[0 ... (CX25821_MAXBOARDS - 1)] = UNSET };
37 module_param_array(video_nr, int, NULL, 0444);
39 MODULE_PARM_DESC(video_nr, "video device numbers");
41 static unsigned int video_debug = VIDEO_DEBUG;
42 module_param(video_debug, int, 0644);
43 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
45 static unsigned int irq_debug;
46 module_param(irq_debug, int, 0644);
47 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
49 #define FORMAT_FLAGS_PACKED 0x01
51 static const struct cx25821_fmt formats[] = {
53 .name = "4:1:1, packed, Y41P",
54 .fourcc = V4L2_PIX_FMT_Y41P,
56 .flags = FORMAT_FLAGS_PACKED,
58 .name = "4:2:2, packed, YUYV",
59 .fourcc = V4L2_PIX_FMT_YUYV,
61 .flags = FORMAT_FLAGS_PACKED,
65 static const struct cx25821_fmt *cx25821_format_by_fourcc(unsigned int fourcc)
69 for (i = 0; i < ARRAY_SIZE(formats); i++)
70 if (formats[i].fourcc == fourcc)
75 int cx25821_start_video_dma(struct cx25821_dev *dev,
76 struct cx25821_dmaqueue *q,
77 struct cx25821_buffer *buf,
78 const struct sram_channel *channel)
82 /* setup fifo + format */
83 cx25821_sram_channel_setup(dev, channel, buf->bpl, buf->risc.dma);
86 cx_write(channel->gpcnt_ctl, 3);
89 cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | (1 << channel->i));
90 cx_set(channel->int_msk, 0x11);
93 cx_write(channel->dma_ctl, 0x11); /* FIFO and RISC enable */
95 /* make sure upstream setting if any is reversed */
96 tmp = cx_read(VID_CH_MODE_SEL);
97 cx_write(VID_CH_MODE_SEL, tmp & 0xFFFFFE00);
102 int cx25821_video_irq(struct cx25821_dev *dev, int chan_num, u32 status)
106 const struct sram_channel *channel = dev->channels[chan_num].sram_channels;
108 mask = cx_read(channel->int_msk);
109 if (0 == (status & mask))
112 cx_write(channel->int_stat, status);
114 /* risc op code error */
115 if (status & (1 << 16)) {
116 pr_warn("%s, %s: video risc op code error\n",
117 dev->name, channel->name);
118 cx_clear(channel->dma_ctl, 0x11);
119 cx25821_sram_channel_dump(dev, channel);
123 if (status & FLD_VID_DST_RISC1) {
124 struct cx25821_dmaqueue *dmaq =
125 &dev->channels[channel->i].dma_vidq;
126 struct cx25821_buffer *buf;
128 spin_lock(&dev->slock);
129 if (!list_empty(&dmaq->active)) {
130 buf = list_entry(dmaq->active.next,
131 struct cx25821_buffer, queue);
133 v4l2_get_timestamp(&buf->vb.timestamp);
134 buf->vb.sequence = dmaq->count++;
135 list_del(&buf->queue);
136 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
138 spin_unlock(&dev->slock);
144 static int cx25821_queue_setup(struct vb2_queue *q, const struct v4l2_format *fmt,
145 unsigned int *num_buffers, unsigned int *num_planes,
146 unsigned int sizes[], void *alloc_ctxs[])
148 struct cx25821_channel *chan = q->drv_priv;
149 unsigned size = (chan->fmt->depth * chan->width * chan->height) >> 3;
151 if (fmt && fmt->fmt.pix.sizeimage < size)
155 sizes[0] = fmt ? fmt->fmt.pix.sizeimage : size;
156 alloc_ctxs[0] = chan->dev->alloc_ctx;
160 static int cx25821_buffer_prepare(struct vb2_buffer *vb)
162 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
163 struct cx25821_channel *chan = vb->vb2_queue->drv_priv;
164 struct cx25821_dev *dev = chan->dev;
165 struct cx25821_buffer *buf =
166 container_of(vbuf, struct cx25821_buffer, vb);
167 struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
169 int bpl_local = LINE_SIZE_D1;
172 if (chan->pixel_formats == PIXEL_FRMT_411)
173 buf->bpl = (chan->fmt->depth * chan->width) >> 3;
175 buf->bpl = (chan->fmt->depth >> 3) * chan->width;
177 if (vb2_plane_size(vb, 0) < chan->height * buf->bpl)
179 vb2_set_plane_payload(vb, 0, chan->height * buf->bpl);
180 buf->vb.field = chan->field;
182 if (chan->pixel_formats == PIXEL_FRMT_411) {
183 bpl_local = buf->bpl;
185 bpl_local = buf->bpl; /* Default */
187 if (chan->use_cif_resolution) {
188 if (dev->tvnorm & V4L2_STD_625_50)
189 bpl_local = 352 << 1;
191 bpl_local = chan->cif_width << 1;
195 switch (chan->field) {
197 ret = cx25821_risc_buffer(dev->pci, &buf->risc,
199 buf->bpl, 0, chan->height);
201 case V4L2_FIELD_BOTTOM:
202 ret = cx25821_risc_buffer(dev->pci, &buf->risc,
204 buf->bpl, 0, chan->height);
206 case V4L2_FIELD_INTERLACED:
207 /* All other formats are top field first */
209 dprintk(1, "top field first\n");
211 ret = cx25821_risc_buffer(dev->pci, &buf->risc,
212 sgt->sgl, line0_offset,
213 bpl_local, bpl_local, bpl_local,
216 case V4L2_FIELD_SEQ_TB:
217 ret = cx25821_risc_buffer(dev->pci, &buf->risc,
219 0, buf->bpl * (chan->height >> 1),
220 buf->bpl, 0, chan->height >> 1);
222 case V4L2_FIELD_SEQ_BT:
223 ret = cx25821_risc_buffer(dev->pci, &buf->risc,
225 buf->bpl * (chan->height >> 1), 0,
226 buf->bpl, 0, chan->height >> 1);
234 dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
235 buf, buf->vb.vb2_buf.index, chan->width, chan->height,
236 chan->fmt->depth, chan->fmt->name,
237 (unsigned long)buf->risc.dma);
242 static void cx25821_buffer_finish(struct vb2_buffer *vb)
244 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
245 struct cx25821_buffer *buf =
246 container_of(vbuf, struct cx25821_buffer, vb);
247 struct cx25821_channel *chan = vb->vb2_queue->drv_priv;
248 struct cx25821_dev *dev = chan->dev;
250 cx25821_free_buffer(dev, buf);
253 static void cx25821_buffer_queue(struct vb2_buffer *vb)
255 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
256 struct cx25821_buffer *buf =
257 container_of(vbuf, struct cx25821_buffer, vb);
258 struct cx25821_channel *chan = vb->vb2_queue->drv_priv;
259 struct cx25821_dev *dev = chan->dev;
260 struct cx25821_buffer *prev;
261 struct cx25821_dmaqueue *q = &dev->channels[chan->id].dma_vidq;
263 buf->risc.cpu[1] = cpu_to_le32(buf->risc.dma + 12);
264 buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_CNT_INC);
265 buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma + 12);
266 buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
268 if (list_empty(&q->active)) {
269 list_add_tail(&buf->queue, &q->active);
271 buf->risc.cpu[0] |= cpu_to_le32(RISC_IRQ1);
272 prev = list_entry(q->active.prev, struct cx25821_buffer,
274 list_add_tail(&buf->queue, &q->active);
275 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
279 static int cx25821_start_streaming(struct vb2_queue *q, unsigned int count)
281 struct cx25821_channel *chan = q->drv_priv;
282 struct cx25821_dev *dev = chan->dev;
283 struct cx25821_dmaqueue *dmaq = &dev->channels[chan->id].dma_vidq;
284 struct cx25821_buffer *buf = list_entry(dmaq->active.next,
285 struct cx25821_buffer, queue);
288 cx25821_start_video_dma(dev, dmaq, buf, chan->sram_channels);
292 static void cx25821_stop_streaming(struct vb2_queue *q)
294 struct cx25821_channel *chan = q->drv_priv;
295 struct cx25821_dev *dev = chan->dev;
296 struct cx25821_dmaqueue *dmaq = &dev->channels[chan->id].dma_vidq;
299 cx_write(chan->sram_channels->dma_ctl, 0); /* FIFO and RISC disable */
300 spin_lock_irqsave(&dev->slock, flags);
301 while (!list_empty(&dmaq->active)) {
302 struct cx25821_buffer *buf = list_entry(dmaq->active.next,
303 struct cx25821_buffer, queue);
305 list_del(&buf->queue);
306 vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
308 spin_unlock_irqrestore(&dev->slock, flags);
311 static struct vb2_ops cx25821_video_qops = {
312 .queue_setup = cx25821_queue_setup,
313 .buf_prepare = cx25821_buffer_prepare,
314 .buf_finish = cx25821_buffer_finish,
315 .buf_queue = cx25821_buffer_queue,
316 .wait_prepare = vb2_ops_wait_prepare,
317 .wait_finish = vb2_ops_wait_finish,
318 .start_streaming = cx25821_start_streaming,
319 .stop_streaming = cx25821_stop_streaming,
324 static int cx25821_vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
325 struct v4l2_fmtdesc *f)
327 if (unlikely(f->index >= ARRAY_SIZE(formats)))
330 strlcpy(f->description, formats[f->index].name, sizeof(f->description));
331 f->pixelformat = formats[f->index].fourcc;
336 static int cx25821_vidioc_g_fmt_vid_cap(struct file *file, void *priv,
337 struct v4l2_format *f)
339 struct cx25821_channel *chan = video_drvdata(file);
341 f->fmt.pix.width = chan->width;
342 f->fmt.pix.height = chan->height;
343 f->fmt.pix.field = chan->field;
344 f->fmt.pix.pixelformat = chan->fmt->fourcc;
345 f->fmt.pix.bytesperline = (chan->width * chan->fmt->depth) >> 3;
346 f->fmt.pix.sizeimage = chan->height * f->fmt.pix.bytesperline;
347 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
352 static int cx25821_vidioc_try_fmt_vid_cap(struct file *file, void *priv,
353 struct v4l2_format *f)
355 struct cx25821_channel *chan = video_drvdata(file);
356 struct cx25821_dev *dev = chan->dev;
357 const struct cx25821_fmt *fmt;
358 enum v4l2_field field = f->fmt.pix.field;
362 fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
365 maxh = (dev->tvnorm & V4L2_STD_625_50) ? 576 : 480;
367 w = f->fmt.pix.width;
368 if (field != V4L2_FIELD_BOTTOM)
369 field = V4L2_FIELD_TOP;
372 f->fmt.pix.height = maxh / 4;
373 } else if (w < 720) {
375 f->fmt.pix.height = maxh / 2;
378 f->fmt.pix.height = maxh;
379 field = V4L2_FIELD_INTERLACED;
381 f->fmt.pix.field = field;
382 f->fmt.pix.width = w;
383 f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3;
384 f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
385 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
390 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
391 struct v4l2_format *f)
393 struct cx25821_channel *chan = video_drvdata(file);
394 struct cx25821_dev *dev = chan->dev;
395 int pix_format = PIXEL_FRMT_422;
398 err = cx25821_vidioc_try_fmt_vid_cap(file, priv, f);
403 chan->fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
404 chan->field = f->fmt.pix.field;
405 chan->width = f->fmt.pix.width;
406 chan->height = f->fmt.pix.height;
408 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_Y41P)
409 pix_format = PIXEL_FRMT_411;
411 pix_format = PIXEL_FRMT_422;
413 cx25821_set_pixel_format(dev, SRAM_CH00, pix_format);
415 /* check if cif resolution */
416 if (chan->width == 320 || chan->width == 352)
417 chan->use_cif_resolution = 1;
419 chan->use_cif_resolution = 0;
421 chan->cif_width = chan->width;
422 medusa_set_resolution(dev, chan->width, SRAM_CH00);
426 static int vidioc_log_status(struct file *file, void *priv)
428 struct cx25821_channel *chan = video_drvdata(file);
429 struct cx25821_dev *dev = chan->dev;
430 const struct sram_channel *sram_ch = chan->sram_channels;
433 tmp = cx_read(sram_ch->dma_ctl);
434 pr_info("Video input 0 is %s\n",
435 (tmp & 0x11) ? "streaming" : "stopped");
440 static int cx25821_vidioc_querycap(struct file *file, void *priv,
441 struct v4l2_capability *cap)
443 struct cx25821_channel *chan = video_drvdata(file);
444 struct cx25821_dev *dev = chan->dev;
445 const u32 cap_input = V4L2_CAP_VIDEO_CAPTURE |
446 V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
447 const u32 cap_output = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_READWRITE;
449 strcpy(cap->driver, "cx25821");
450 strlcpy(cap->card, cx25821_boards[dev->board].name, sizeof(cap->card));
451 sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
452 if (chan->id >= VID_CHANNEL_NUM)
453 cap->device_caps = cap_output;
455 cap->device_caps = cap_input;
456 cap->capabilities = cap_input | cap_output | V4L2_CAP_DEVICE_CAPS;
460 static int cx25821_vidioc_g_std(struct file *file, void *priv, v4l2_std_id *tvnorms)
462 struct cx25821_channel *chan = video_drvdata(file);
464 *tvnorms = chan->dev->tvnorm;
468 static int cx25821_vidioc_s_std(struct file *file, void *priv,
471 struct cx25821_channel *chan = video_drvdata(file);
472 struct cx25821_dev *dev = chan->dev;
474 if (dev->tvnorm == tvnorms)
477 dev->tvnorm = tvnorms;
479 chan->height = (dev->tvnorm & V4L2_STD_625_50) ? 576 : 480;
481 medusa_set_videostandard(dev);
486 static int cx25821_vidioc_enum_input(struct file *file, void *priv,
487 struct v4l2_input *i)
492 i->type = V4L2_INPUT_TYPE_CAMERA;
493 i->std = CX25821_NORMS;
494 strcpy(i->name, "Composite");
498 static int cx25821_vidioc_g_input(struct file *file, void *priv, unsigned int *i)
504 static int cx25821_vidioc_s_input(struct file *file, void *priv, unsigned int i)
506 return i ? -EINVAL : 0;
509 static int cx25821_s_ctrl(struct v4l2_ctrl *ctrl)
511 struct cx25821_channel *chan =
512 container_of(ctrl->handler, struct cx25821_channel, hdl);
513 struct cx25821_dev *dev = chan->dev;
516 case V4L2_CID_BRIGHTNESS:
517 medusa_set_brightness(dev, ctrl->val, chan->id);
520 medusa_set_hue(dev, ctrl->val, chan->id);
522 case V4L2_CID_CONTRAST:
523 medusa_set_contrast(dev, ctrl->val, chan->id);
525 case V4L2_CID_SATURATION:
526 medusa_set_saturation(dev, ctrl->val, chan->id);
534 static int cx25821_vidioc_enum_output(struct file *file, void *priv,
535 struct v4l2_output *o)
540 o->type = V4L2_INPUT_TYPE_CAMERA;
541 o->std = CX25821_NORMS;
542 strcpy(o->name, "Composite");
546 static int cx25821_vidioc_g_output(struct file *file, void *priv, unsigned int *o)
552 static int cx25821_vidioc_s_output(struct file *file, void *priv, unsigned int o)
554 return o ? -EINVAL : 0;
557 static int cx25821_vidioc_try_fmt_vid_out(struct file *file, void *priv,
558 struct v4l2_format *f)
560 struct cx25821_channel *chan = video_drvdata(file);
561 struct cx25821_dev *dev = chan->dev;
562 const struct cx25821_fmt *fmt;
564 fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
567 f->fmt.pix.width = 720;
568 f->fmt.pix.height = (dev->tvnorm & V4L2_STD_625_50) ? 576 : 480;
569 f->fmt.pix.field = V4L2_FIELD_INTERLACED;
570 f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3;
571 f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
572 f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
576 static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
577 struct v4l2_format *f)
579 struct cx25821_channel *chan = video_drvdata(file);
582 err = cx25821_vidioc_try_fmt_vid_out(file, priv, f);
587 chan->fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
588 chan->field = f->fmt.pix.field;
589 chan->width = f->fmt.pix.width;
590 chan->height = f->fmt.pix.height;
591 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_Y41P)
592 chan->pixel_formats = PIXEL_FRMT_411;
594 chan->pixel_formats = PIXEL_FRMT_422;
598 static const struct v4l2_ctrl_ops cx25821_ctrl_ops = {
599 .s_ctrl = cx25821_s_ctrl,
602 static const struct v4l2_file_operations video_fops = {
603 .owner = THIS_MODULE,
604 .open = v4l2_fh_open,
605 .release = vb2_fop_release,
606 .read = vb2_fop_read,
607 .poll = vb2_fop_poll,
608 .unlocked_ioctl = video_ioctl2,
609 .mmap = vb2_fop_mmap,
612 static const struct v4l2_ioctl_ops video_ioctl_ops = {
613 .vidioc_querycap = cx25821_vidioc_querycap,
614 .vidioc_enum_fmt_vid_cap = cx25821_vidioc_enum_fmt_vid_cap,
615 .vidioc_g_fmt_vid_cap = cx25821_vidioc_g_fmt_vid_cap,
616 .vidioc_try_fmt_vid_cap = cx25821_vidioc_try_fmt_vid_cap,
617 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
618 .vidioc_reqbufs = vb2_ioctl_reqbufs,
619 .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
620 .vidioc_create_bufs = vb2_ioctl_create_bufs,
621 .vidioc_querybuf = vb2_ioctl_querybuf,
622 .vidioc_qbuf = vb2_ioctl_qbuf,
623 .vidioc_dqbuf = vb2_ioctl_dqbuf,
624 .vidioc_streamon = vb2_ioctl_streamon,
625 .vidioc_streamoff = vb2_ioctl_streamoff,
626 .vidioc_g_std = cx25821_vidioc_g_std,
627 .vidioc_s_std = cx25821_vidioc_s_std,
628 .vidioc_enum_input = cx25821_vidioc_enum_input,
629 .vidioc_g_input = cx25821_vidioc_g_input,
630 .vidioc_s_input = cx25821_vidioc_s_input,
631 .vidioc_log_status = vidioc_log_status,
632 .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
633 .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
636 static const struct video_device cx25821_video_device = {
637 .name = "cx25821-video",
639 .release = video_device_release_empty,
641 .ioctl_ops = &video_ioctl_ops,
642 .tvnorms = CX25821_NORMS,
645 static const struct v4l2_file_operations video_out_fops = {
646 .owner = THIS_MODULE,
647 .open = v4l2_fh_open,
648 .release = vb2_fop_release,
649 .write = vb2_fop_write,
650 .poll = vb2_fop_poll,
651 .unlocked_ioctl = video_ioctl2,
652 .mmap = vb2_fop_mmap,
655 static const struct v4l2_ioctl_ops video_out_ioctl_ops = {
656 .vidioc_querycap = cx25821_vidioc_querycap,
657 .vidioc_enum_fmt_vid_out = cx25821_vidioc_enum_fmt_vid_cap,
658 .vidioc_g_fmt_vid_out = cx25821_vidioc_g_fmt_vid_cap,
659 .vidioc_try_fmt_vid_out = cx25821_vidioc_try_fmt_vid_out,
660 .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out,
661 .vidioc_g_std = cx25821_vidioc_g_std,
662 .vidioc_s_std = cx25821_vidioc_s_std,
663 .vidioc_enum_output = cx25821_vidioc_enum_output,
664 .vidioc_g_output = cx25821_vidioc_g_output,
665 .vidioc_s_output = cx25821_vidioc_s_output,
666 .vidioc_log_status = vidioc_log_status,
669 static const struct video_device cx25821_video_out_device = {
670 .name = "cx25821-video",
671 .fops = &video_out_fops,
672 .release = video_device_release_empty,
674 .ioctl_ops = &video_out_ioctl_ops,
675 .tvnorms = CX25821_NORMS,
678 void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num)
680 cx_clear(PCI_INT_MSK, 1);
682 if (video_is_registered(&dev->channels[chan_num].vdev)) {
683 video_unregister_device(&dev->channels[chan_num].vdev);
684 v4l2_ctrl_handler_free(&dev->channels[chan_num].hdl);
688 int cx25821_video_register(struct cx25821_dev *dev)
693 /* initial device configuration */
694 dev->tvnorm = V4L2_STD_NTSC_M;
696 spin_lock_init(&dev->slock);
698 for (i = 0; i < MAX_VID_CAP_CHANNEL_NUM - 1; ++i) {
699 struct cx25821_channel *chan = &dev->channels[i];
700 struct video_device *vdev = &chan->vdev;
701 struct v4l2_ctrl_handler *hdl = &chan->hdl;
703 bool is_output = i > SRAM_CH08;
705 if (i == SRAM_CH08) /* audio channel */
709 v4l2_ctrl_handler_init(hdl, 4);
710 v4l2_ctrl_new_std(hdl, &cx25821_ctrl_ops,
711 V4L2_CID_BRIGHTNESS, 0, 10000, 1, 6200);
712 v4l2_ctrl_new_std(hdl, &cx25821_ctrl_ops,
713 V4L2_CID_CONTRAST, 0, 10000, 1, 5000);
714 v4l2_ctrl_new_std(hdl, &cx25821_ctrl_ops,
715 V4L2_CID_SATURATION, 0, 10000, 1, 5000);
716 v4l2_ctrl_new_std(hdl, &cx25821_ctrl_ops,
717 V4L2_CID_HUE, 0, 10000, 1, 5000);
722 err = v4l2_ctrl_handler_setup(hdl);
726 chan->out = &dev->vid_out_data[i - SRAM_CH09];
727 chan->out->chan = chan;
730 chan->sram_channels = &cx25821_sram_channels[i];
732 chan->field = V4L2_FIELD_INTERLACED;
733 if (dev->tvnorm & V4L2_STD_625_50)
738 if (chan->pixel_formats == PIXEL_FRMT_411)
739 chan->fmt = cx25821_format_by_fourcc(V4L2_PIX_FMT_Y41P);
741 chan->fmt = cx25821_format_by_fourcc(V4L2_PIX_FMT_YUYV);
743 cx_write(chan->sram_channels->int_stat, 0xffffffff);
745 INIT_LIST_HEAD(&chan->dma_vidq.active);
749 q->type = is_output ? V4L2_BUF_TYPE_VIDEO_OUTPUT :
750 V4L2_BUF_TYPE_VIDEO_CAPTURE;
751 q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
752 q->io_modes |= is_output ? VB2_WRITE : VB2_READ;
753 q->gfp_flags = GFP_DMA32;
754 q->min_buffers_needed = 2;
756 q->buf_struct_size = sizeof(struct cx25821_buffer);
757 q->ops = &cx25821_video_qops;
758 q->mem_ops = &vb2_dma_sg_memops;
759 q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
760 q->lock = &dev->lock;
763 err = vb2_queue_init(q);
768 /* register v4l devices */
769 *vdev = is_output ? cx25821_video_out_device : cx25821_video_device;
770 vdev->v4l2_dev = &dev->v4l2_dev;
772 vdev->ctrl_handler = hdl;
774 vdev->vfl_dir = VFL_DIR_TX;
775 vdev->lock = &dev->lock;
777 snprintf(vdev->name, sizeof(vdev->name), "%s #%d", dev->name, i);
778 video_set_drvdata(vdev, chan);
780 err = video_register_device(vdev, VFL_TYPE_GRABBER,
787 /* set PCI interrupt */
788 cx_set(PCI_INT_MSK, 0xff);
794 cx25821_video_unregister(dev, i--);