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> cx23885 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 };
36 static unsigned int radio_nr[] = {[0 ... (CX25821_MAXBOARDS - 1)] = UNSET };
38 module_param_array(video_nr, int, NULL, 0444);
39 module_param_array(radio_nr, int, NULL, 0444);
41 MODULE_PARM_DESC(video_nr, "video device numbers");
42 MODULE_PARM_DESC(radio_nr, "radio device numbers");
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]");
48 static unsigned int irq_debug;
49 module_param(irq_debug, int, 0644);
50 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
52 unsigned int vid_limit = 16;
53 module_param(vid_limit, int, 0644);
54 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
56 static void cx25821_init_controls(struct cx25821_dev *dev, int chan_num);
58 static const struct v4l2_file_operations video_fops;
59 static const struct v4l2_ioctl_ops video_ioctl_ops;
61 #define FORMAT_FLAGS_PACKED 0x01
63 struct cx25821_fmt formats[] = {
65 .name = "8 bpp, gray",
66 .fourcc = V4L2_PIX_FMT_GREY,
68 .flags = FORMAT_FLAGS_PACKED,
70 .name = "4:1:1, packed, Y41P",
71 .fourcc = V4L2_PIX_FMT_Y41P,
73 .flags = FORMAT_FLAGS_PACKED,
75 .name = "4:2:2, packed, YUYV",
76 .fourcc = V4L2_PIX_FMT_YUYV,
78 .flags = FORMAT_FLAGS_PACKED,
80 .name = "4:2:2, packed, UYVY",
81 .fourcc = V4L2_PIX_FMT_UYVY,
83 .flags = FORMAT_FLAGS_PACKED,
86 .fourcc = V4L2_PIX_FMT_YUV420,
88 .flags = FORMAT_FLAGS_PACKED,
92 int cx25821_get_format_size(void)
94 return ARRAY_SIZE(formats);
97 struct cx25821_fmt *cx25821_format_by_fourcc(unsigned int fourcc)
101 if (fourcc == V4L2_PIX_FMT_Y41P || fourcc == V4L2_PIX_FMT_YUV411P) {
105 for (i = 0; i < ARRAY_SIZE(formats); i++)
106 if (formats[i].fourcc == fourcc)
109 pr_err("%s(0x%08x) NOT FOUND\n", __func__, fourcc);
113 void cx25821_dump_video_queue(struct cx25821_dev *dev,
114 struct cx25821_dmaqueue *q)
116 struct cx25821_buffer *buf;
117 struct list_head *item;
118 dprintk(1, "%s()\n", __func__);
120 if (!list_empty(&q->active)) {
121 list_for_each(item, &q->active)
122 buf = list_entry(item, struct cx25821_buffer, vb.queue);
125 if (!list_empty(&q->queued)) {
126 list_for_each(item, &q->queued)
127 buf = list_entry(item, struct cx25821_buffer, vb.queue);
132 void cx25821_video_wakeup(struct cx25821_dev *dev, struct cx25821_dmaqueue *q,
135 struct cx25821_buffer *buf;
138 for (bc = 0;; bc++) {
139 if (list_empty(&q->active)) {
140 dprintk(1, "bc=%d (=0: active empty)\n", bc);
145 list_entry(q->active.next, struct cx25821_buffer, vb.queue);
147 /* count comes from the hw and it is 16bit wide --
148 * this trick handles wrap-arounds correctly for
149 * up to 32767 buffers in flight... */
150 if ((s16) (count - buf->count) < 0) {
154 do_gettimeofday(&buf->vb.ts);
155 buf->vb.state = VIDEOBUF_DONE;
156 list_del(&buf->vb.queue);
157 wake_up(&buf->vb.done);
160 if (list_empty(&q->active))
161 del_timer(&q->timeout);
163 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
165 pr_err("%s: %d buffers handled (should be 1)\n", __func__, bc);
169 int cx25821_set_tvnorm(struct cx25821_dev *dev, v4l2_std_id norm)
171 dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
172 __func__, (unsigned int)norm, v4l2_norm_to_name(norm));
176 /* Tell the internal A/V decoder */
177 cx25821_call_all(dev, core, s_std, norm);
183 struct video_device *cx25821_vdev_init(struct cx25821_dev *dev,
185 struct video_device *template,
188 struct video_device *vfd;
189 dprintk(1, "%s()\n", __func__);
191 vfd = video_device_alloc();
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);
204 static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl)
208 if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1)
210 for (i = 0; i < CX25821_CTLS; i++)
211 if (cx25821_ctls[i].v.id == qctrl->id)
213 if (i == CX25821_CTLS) {
217 *qctrl = cx25821_ctls[i].v;
222 /* resource management */
223 int cx25821_res_get(struct cx25821_dev *dev, struct cx25821_fh *fh,
226 dprintk(1, "%s()\n", __func__);
227 if (fh->resources & bit)
228 /* have it already allocated */
232 mutex_lock(&dev->lock);
233 if (dev->channels[fh->channel_id].resources & bit) {
234 /* no, someone else uses it */
235 mutex_unlock(&dev->lock);
238 /* it's free, grab it */
239 fh->resources |= bit;
240 dev->channels[fh->channel_id].resources |= bit;
241 dprintk(1, "res: get %d\n", bit);
242 mutex_unlock(&dev->lock);
246 int cx25821_res_check(struct cx25821_fh *fh, unsigned int bit)
248 return fh->resources & bit;
251 int cx25821_res_locked(struct cx25821_fh *fh, unsigned int bit)
253 return fh->dev->channels[fh->channel_id].resources & bit;
256 void cx25821_res_free(struct cx25821_dev *dev, struct cx25821_fh *fh,
259 BUG_ON((fh->resources & bits) != bits);
260 dprintk(1, "%s()\n", __func__);
262 mutex_lock(&dev->lock);
263 fh->resources &= ~bits;
264 dev->channels[fh->channel_id].resources &= ~bits;
265 dprintk(1, "res: put %d\n", bits);
266 mutex_unlock(&dev->lock);
269 int cx25821_video_mux(struct cx25821_dev *dev, unsigned int input)
271 struct v4l2_routing route;
272 memset(&route, 0, sizeof(route));
274 dprintk(1, "%s(): video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
275 __func__, input, INPUT(input)->vmux, INPUT(input)->gpio0,
276 INPUT(input)->gpio1, INPUT(input)->gpio2, INPUT(input)->gpio3);
279 route.input = INPUT(input)->vmux;
281 /* Tell the internal A/V decoder */
282 cx25821_call_all(dev, video, s_routing, INPUT(input)->vmux, 0, 0);
287 int cx25821_start_video_dma(struct cx25821_dev *dev,
288 struct cx25821_dmaqueue *q,
289 struct cx25821_buffer *buf,
290 struct sram_channel *channel)
294 /* setup fifo + format */
295 cx25821_sram_channel_setup(dev, channel, buf->bpl, buf->risc.dma);
298 cx_write(channel->gpcnt_ctl, 3);
302 cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | (1 << channel->i));
303 cx_set(channel->int_msk, 0x11);
306 cx_write(channel->dma_ctl, 0x11); /* FIFO and RISC enable */
308 /* make sure upstream setting if any is reversed */
309 tmp = cx_read(VID_CH_MODE_SEL);
310 cx_write(VID_CH_MODE_SEL, tmp & 0xFFFFFE00);
315 int cx25821_restart_video_queue(struct cx25821_dev *dev,
316 struct cx25821_dmaqueue *q,
317 struct sram_channel *channel)
319 struct cx25821_buffer *buf, *prev;
320 struct list_head *item;
322 if (!list_empty(&q->active)) {
324 list_entry(q->active.next, struct cx25821_buffer, vb.queue);
326 cx25821_start_video_dma(dev, q, buf, channel);
328 list_for_each(item, &q->active) {
329 buf = list_entry(item, struct cx25821_buffer, vb.queue);
330 buf->count = q->count++;
333 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
339 if (list_empty(&q->queued))
343 list_entry(q->queued.next, struct cx25821_buffer, vb.queue);
346 list_move_tail(&buf->vb.queue, &q->active);
347 cx25821_start_video_dma(dev, q, buf, channel);
348 buf->vb.state = VIDEOBUF_ACTIVE;
349 buf->count = q->count++;
350 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
351 } else if (prev->vb.width == buf->vb.width &&
352 prev->vb.height == buf->vb.height &&
353 prev->fmt == buf->fmt) {
354 list_move_tail(&buf->vb.queue, &q->active);
355 buf->vb.state = VIDEOBUF_ACTIVE;
356 buf->count = q->count++;
357 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
358 prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
366 void cx25821_vid_timeout(unsigned long data)
368 struct cx25821_data *timeout_data = (struct cx25821_data *)data;
369 struct cx25821_dev *dev = timeout_data->dev;
370 struct sram_channel *channel = timeout_data->channel;
371 struct cx25821_dmaqueue *q = &dev->channels[channel->i].vidq;
372 struct cx25821_buffer *buf;
375 /* cx25821_sram_channel_dump(dev, channel); */
376 cx_clear(channel->dma_ctl, 0x11);
378 spin_lock_irqsave(&dev->slock, flags);
379 while (!list_empty(&q->active)) {
381 list_entry(q->active.next, struct cx25821_buffer, vb.queue);
382 list_del(&buf->vb.queue);
384 buf->vb.state = VIDEOBUF_ERROR;
385 wake_up(&buf->vb.done);
388 cx25821_restart_video_queue(dev, q, channel);
389 spin_unlock_irqrestore(&dev->slock, flags);
392 int cx25821_video_irq(struct cx25821_dev *dev, int chan_num, u32 status)
397 struct sram_channel *channel = dev->channels[chan_num].sram_channels;
399 mask = cx_read(channel->int_msk);
400 if (0 == (status & mask))
403 cx_write(channel->int_stat, status);
405 /* risc op code error */
406 if (status & (1 << 16)) {
407 pr_warn("%s, %s: video risc op code error\n",
408 dev->name, channel->name);
409 cx_clear(channel->dma_ctl, 0x11);
410 cx25821_sram_channel_dump(dev, channel);
414 if (status & FLD_VID_DST_RISC1) {
415 spin_lock(&dev->slock);
416 count = cx_read(channel->gpcnt);
417 cx25821_video_wakeup(dev, &dev->channels[channel->i].vidq,
419 spin_unlock(&dev->slock);
425 dprintk(2, "stopper video\n");
426 spin_lock(&dev->slock);
427 cx25821_restart_video_queue(dev,
428 &dev->channels[channel->i].vidq, channel);
429 spin_unlock(&dev->slock);
435 void cx25821_videoioctl_unregister(struct cx25821_dev *dev)
437 if (dev->ioctl_dev) {
438 if (video_is_registered(dev->ioctl_dev))
439 video_unregister_device(dev->ioctl_dev);
441 video_device_release(dev->ioctl_dev);
443 dev->ioctl_dev = NULL;
447 void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num)
449 cx_clear(PCI_INT_MSK, 1);
451 if (dev->channels[chan_num].video_dev) {
452 if (video_is_registered(dev->channels[chan_num].video_dev))
453 video_unregister_device(
454 dev->channels[chan_num].video_dev);
456 video_device_release(
457 dev->channels[chan_num].video_dev);
459 dev->channels[chan_num].video_dev = NULL;
461 btcx_riscmem_free(dev->pci,
462 &dev->channels[chan_num].vidq.stopper);
464 pr_warn("device %d released!\n", chan_num);
469 int cx25821_video_register(struct cx25821_dev *dev)
474 struct video_device cx25821_video_device = {
475 .name = "cx25821-video",
478 .ioctl_ops = &video_ioctl_ops,
479 .tvnorms = CX25821_NORMS,
480 .current_norm = V4L2_STD_NTSC_M,
483 spin_lock_init(&dev->slock);
485 for (i = 0; i < MAX_VID_CHANNEL_NUM - 1; ++i) {
486 cx25821_init_controls(dev, i);
488 cx25821_risc_stopper(dev->pci, &dev->channels[i].vidq.stopper,
489 dev->channels[i].sram_channels->dma_ctl,
492 dev->channels[i].sram_channels = &cx25821_sram_channels[i];
493 dev->channels[i].video_dev = NULL;
494 dev->channels[i].resources = 0;
496 cx_write(dev->channels[i].sram_channels->int_stat, 0xffffffff);
498 INIT_LIST_HEAD(&dev->channels[i].vidq.active);
499 INIT_LIST_HEAD(&dev->channels[i].vidq.queued);
501 dev->channels[i].timeout_data.dev = dev;
502 dev->channels[i].timeout_data.channel =
503 &cx25821_sram_channels[i];
504 dev->channels[i].vidq.timeout.function =
506 dev->channels[i].vidq.timeout.data =
507 (unsigned long)&dev->channels[i].timeout_data;
508 init_timer(&dev->channels[i].vidq.timeout);
510 /* register v4l devices */
511 dev->channels[i].video_dev = cx25821_vdev_init(dev,
512 dev->pci, &cx25821_video_device, "video");
514 err = video_register_device(dev->channels[i].video_dev,
515 VFL_TYPE_GRABBER, video_nr[dev->nr]);
522 /* set PCI interrupt */
523 cx_set(PCI_INT_MSK, 0xff);
525 /* initial device configuration */
526 mutex_lock(&dev->lock);
528 dev->tvnorm = cx25821_video_device.current_norm;
529 cx25821_set_tvnorm(dev, dev->tvnorm);
531 mutex_unlock(&dev->lock);
537 cx25821_video_unregister(dev, i);
541 int cx25821_buffer_setup(struct videobuf_queue *q, unsigned int *count,
544 struct cx25821_fh *fh = q->priv_data;
546 *size = fh->fmt->depth * fh->width * fh->height >> 3;
551 if (*size * *count > vid_limit * 1024 * 1024)
552 *count = (vid_limit * 1024 * 1024) / *size;
557 int cx25821_buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
558 enum v4l2_field field)
560 struct cx25821_fh *fh = q->priv_data;
561 struct cx25821_dev *dev = fh->dev;
562 struct cx25821_buffer *buf =
563 container_of(vb, struct cx25821_buffer, vb);
564 int rc, init_buffer = 0;
565 u32 line0_offset, line1_offset;
566 struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
567 int bpl_local = LINE_SIZE_D1;
568 int channel_opened = fh->channel_id;
570 BUG_ON(NULL == fh->fmt);
571 if (fh->width < 48 || fh->width > 720 ||
572 fh->height < 32 || fh->height > 576)
575 buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
577 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
580 if (buf->fmt != fh->fmt ||
581 buf->vb.width != fh->width ||
582 buf->vb.height != fh->height || buf->vb.field != field) {
584 buf->vb.width = fh->width;
585 buf->vb.height = fh->height;
586 buf->vb.field = field;
590 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
592 rc = videobuf_iolock(q, &buf->vb, NULL);
594 printk(KERN_DEBUG pr_fmt("videobuf_iolock failed!\n"));
599 dprintk(1, "init_buffer=%d\n", init_buffer);
603 channel_opened = dev->channel_opened;
604 channel_opened = (channel_opened < 0
605 || channel_opened > 7) ? 7 : channel_opened;
607 if (dev->channels[channel_opened].pixel_formats ==
609 buf->bpl = (buf->fmt->depth * buf->vb.width) >> 3;
611 buf->bpl = (buf->fmt->depth >> 3) * (buf->vb.width);
613 if (dev->channels[channel_opened].pixel_formats ==
615 bpl_local = buf->bpl;
617 bpl_local = buf->bpl; /* Default */
619 if (channel_opened >= 0 && channel_opened <= 7) {
620 if (dev->channels[channel_opened]
621 .use_cif_resolution) {
622 if (dev->tvnorm & V4L2_STD_PAL_BG
623 || dev->tvnorm & V4L2_STD_PAL_DK)
624 bpl_local = 352 << 1;
627 dev->channels[channel_opened].
634 switch (buf->vb.field) {
636 cx25821_risc_buffer(dev->pci, &buf->risc,
637 dma->sglist, 0, UNSET,
638 buf->bpl, 0, buf->vb.height);
640 case V4L2_FIELD_BOTTOM:
641 cx25821_risc_buffer(dev->pci, &buf->risc,
642 dma->sglist, UNSET, 0,
643 buf->bpl, 0, buf->vb.height);
645 case V4L2_FIELD_INTERLACED:
646 /* All other formats are top field first */
648 line1_offset = buf->bpl;
649 dprintk(1, "top field first\n");
651 cx25821_risc_buffer(dev->pci, &buf->risc,
652 dma->sglist, line0_offset,
653 bpl_local, bpl_local, bpl_local,
654 buf->vb.height >> 1);
656 case V4L2_FIELD_SEQ_TB:
657 cx25821_risc_buffer(dev->pci, &buf->risc,
659 0, buf->bpl * (buf->vb.height >> 1),
660 buf->bpl, 0, buf->vb.height >> 1);
662 case V4L2_FIELD_SEQ_BT:
663 cx25821_risc_buffer(dev->pci, &buf->risc,
665 buf->bpl * (buf->vb.height >> 1), 0,
666 buf->bpl, 0, buf->vb.height >> 1);
673 dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
674 buf, buf->vb.i, fh->width, fh->height, fh->fmt->depth,
675 fh->fmt->name, (unsigned long)buf->risc.dma);
677 buf->vb.state = VIDEOBUF_PREPARED;
682 cx25821_free_buffer(q, buf);
686 void cx25821_buffer_release(struct videobuf_queue *q,
687 struct videobuf_buffer *vb)
689 struct cx25821_buffer *buf =
690 container_of(vb, struct cx25821_buffer, vb);
692 cx25821_free_buffer(q, buf);
695 struct videobuf_queue *get_queue(struct cx25821_fh *fh)
698 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
706 int cx25821_get_resource(struct cx25821_fh *fh, int resource)
709 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
717 int cx25821_video_mmap(struct file *file, struct vm_area_struct *vma)
719 struct cx25821_fh *fh = file->private_data;
721 return videobuf_mmap_mapper(get_queue(fh), vma);
725 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
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;
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 */
739 dprintk(2, "jmp to stopper (0x%x)\n", buf->risc.jmp[1]);
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,
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].sram_channels);
751 buf->vb.state = VIDEOBUF_ACTIVE;
752 buf->count = q->count++;
753 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
754 dprintk(2, "[%p/%d] buffer_queue - first active, buf cnt = %d, q->count = %d\n",
755 buf, buf->vb.i, buf->count, q->count);
757 prev = list_entry(q->active.prev, struct cx25821_buffer,
759 if (prev->vb.width == buf->vb.width
760 && prev->vb.height == buf->vb.height
761 && prev->fmt == buf->fmt) {
762 list_add_tail(&buf->vb.queue, &q->active);
763 buf->vb.state = VIDEOBUF_ACTIVE;
764 buf->count = q->count++;
765 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
767 /* 64 bit bits 63-32 */
768 prev->risc.jmp[2] = cpu_to_le32(0);
769 dprintk(2, "[%p/%d] buffer_queue - append to active, buf->count=%d\n",
770 buf, buf->vb.i, buf->count);
773 list_add_tail(&buf->vb.queue, &q->queued);
774 buf->vb.state = VIDEOBUF_QUEUED;
775 dprintk(2, "[%p/%d] buffer_queue - first queued\n", buf,
780 if (list_empty(&q->active))
781 dprintk(2, "active queue empty!\n");
784 static struct videobuf_queue_ops cx25821_video_qops = {
785 .buf_setup = cx25821_buffer_setup,
786 .buf_prepare = cx25821_buffer_prepare,
787 .buf_queue = buffer_queue,
788 .buf_release = cx25821_buffer_release,
791 static int video_open(struct file *file)
793 struct video_device *vdev = video_devdata(file);
794 struct cx25821_dev *h, *dev = video_drvdata(file);
795 struct cx25821_fh *fh;
796 struct list_head *list;
797 int minor = video_devdata(file)->minor;
798 enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
803 dprintk(1, "open dev=%s type=%s\n", video_device_node_name(vdev),
804 v4l2_type_names[type]);
806 /* allocate + initialize per filehandle data */
807 fh = kzalloc(sizeof(*fh), GFP_KERNEL);
811 mutex_lock(&cx25821_devlist_mutex);
813 list_for_each(list, &cx25821_devlist)
815 h = list_entry(list, struct cx25821_dev, devlist);
817 for (i = 0; i < MAX_VID_CHANNEL_NUM; i++) {
818 if (h->channels[i].video_dev &&
819 h->channels[i].video_dev->minor == minor) {
822 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
828 mutex_unlock(&cx25821_devlist_mutex);
833 file->private_data = fh;
837 fh->channel_id = ch_id;
839 if (dev->tvnorm & V4L2_STD_PAL_BG || dev->tvnorm & V4L2_STD_PAL_DK)
844 dev->channel_opened = fh->channel_id;
845 pix_format = (dev->channels[ch_id].pixel_formats == PIXEL_FRMT_411) ?
846 V4L2_PIX_FMT_Y41P : V4L2_PIX_FMT_YUYV;
847 fh->fmt = cx25821_format_by_fourcc(pix_format);
849 v4l2_prio_open(&dev->channels[ch_id].prio, &fh->prio);
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);
857 dprintk(1, "post videobuf_queue_init()\n");
858 mutex_unlock(&cx25821_devlist_mutex);
863 static ssize_t video_read(struct file *file, char __user * data, size_t count,
866 struct cx25821_fh *fh = file->private_data;
869 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
870 if (cx25821_res_locked(fh, RESOURCE_VIDEO0))
873 return videobuf_read_one(&fh->vidq, data, count, ppos,
874 file->f_flags & O_NONBLOCK);
882 static unsigned int video_poll(struct file *file,
883 struct poll_table_struct *wait)
885 struct cx25821_fh *fh = file->private_data;
886 struct cx25821_buffer *buf;
888 if (cx25821_res_check(fh, RESOURCE_VIDEO0)) {
889 /* streaming capture */
890 if (list_empty(&fh->vidq.stream))
892 buf = list_entry(fh->vidq.stream.next,
893 struct cx25821_buffer, vb.stream);
896 buf = (struct cx25821_buffer *)fh->vidq.read_buf;
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;
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),
912 *((char *)buf->vb.baddr + 3) = cam_id;
916 return POLLIN | POLLRDNORM;
922 static int video_release(struct file *file)
924 struct cx25821_fh *fh = file->private_data;
925 struct cx25821_dev *dev = fh->dev;
927 /* stop the risc engine and fifo */
928 cx_write(channel0->dma_ctl, 0); /* FIFO and RISC disable */
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);
936 if (fh->vidq.read_buf) {
937 cx25821_buffer_release(&fh->vidq, fh->vidq.read_buf);
938 kfree(fh->vidq.read_buf);
941 videobuf_mmap_free(&fh->vidq);
943 v4l2_prio_close(&dev->channels[fh->channel_id].prio, fh->prio);
944 file->private_data = NULL;
950 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
952 struct cx25821_fh *fh = priv;
953 struct cx25821_dev *dev = fh->dev;
955 if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
958 if (unlikely(i != fh->type))
961 if (unlikely(!cx25821_res_get(dev, fh, cx25821_get_resource(fh,
965 return videobuf_streamon(get_queue(fh));
968 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
970 struct cx25821_fh *fh = priv;
971 struct cx25821_dev *dev = fh->dev;
974 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
979 res = cx25821_get_resource(fh, RESOURCE_VIDEO0);
980 err = videobuf_streamoff(get_queue(fh));
983 cx25821_res_free(dev, fh, res);
987 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
988 struct v4l2_format *f)
990 struct cx25821_fh *fh = priv;
991 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
992 struct v4l2_mbus_framefmt mbus_fmt;
994 int pix_format = PIXEL_FRMT_422;
997 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
1003 dprintk(2, "%s()\n", __func__);
1004 err = cx25821_vidioc_try_fmt_vid_cap(file, priv, f);
1009 fh->fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
1010 fh->vidq.field = f->fmt.pix.field;
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;
1016 if (cx25821_is_valid_height(f->fmt.pix.height, dev->tvnorm))
1017 fh->height = f->fmt.pix.height;
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;
1026 cx25821_set_pixel_format(dev, SRAM_CH00, pix_format);
1028 /* check if cif resolution */
1029 if (fh->width == 320 || fh->width == 352)
1030 dev->channels[fh->channel_id].use_cif_resolution = 1;
1032 dev->channels[fh->channel_id].use_cif_resolution = 0;
1034 dev->channels[fh->channel_id].cif_width = fh->width;
1035 medusa_set_resolution(dev, fh->width, SRAM_CH00);
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);
1045 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1048 struct cx25821_fh *fh = priv;
1049 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1051 ret_val = videobuf_dqbuf(get_queue(fh), p, file->f_flags & O_NONBLOCK);
1053 p->sequence = dev->channels[fh->channel_id].vidq.count;
1058 static int vidioc_log_status(struct file *file, void *priv)
1060 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1061 struct cx25821_fh *fh = priv;
1064 struct sram_channel *sram_ch = dev->channels[fh->channel_id]
1068 snprintf(name, sizeof(name), "%s/2", dev->name);
1069 pr_info("%s/2: ============ START LOG STATUS ============\n",
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",
1080 static int vidioc_s_ctrl(struct file *file, void *priv,
1081 struct v4l2_control *ctl)
1083 struct cx25821_fh *fh = priv;
1084 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1088 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
1094 return cx25821_set_control(dev, ctl, fh->channel_id);
1098 int cx25821_vidioc_g_fmt_vid_cap(struct file *file, void *priv,
1099 struct v4l2_format *f)
1101 struct cx25821_fh *fh = priv;
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;
1113 int cx25821_vidioc_try_fmt_vid_cap(struct file *file, void *priv,
1114 struct v4l2_format *f)
1116 struct cx25821_fmt *fmt;
1117 enum v4l2_field field;
1118 unsigned int maxw, maxh;
1120 fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
1124 field = f->fmt.pix.field;
1128 if (V4L2_FIELD_ANY == field) {
1129 field = (f->fmt.pix.height > maxh / 2)
1130 ? V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP;
1134 case V4L2_FIELD_TOP:
1135 case V4L2_FIELD_BOTTOM:
1138 case V4L2_FIELD_INTERLACED:
1144 f->fmt.pix.field = field;
1145 if (f->fmt.pix.height < 32)
1146 f->fmt.pix.height = 32;
1147 if (f->fmt.pix.height > maxh)
1148 f->fmt.pix.height = maxh;
1149 if (f->fmt.pix.width < 48)
1150 f->fmt.pix.width = 48;
1151 if (f->fmt.pix.width > maxw)
1152 f->fmt.pix.width = maxw;
1153 f->fmt.pix.width &= ~0x03;
1154 f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3;
1155 f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
1160 int cx25821_vidioc_querycap(struct file *file, void *priv,
1161 struct v4l2_capability *cap)
1163 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1165 strcpy(cap->driver, "cx25821");
1166 strlcpy(cap->card, cx25821_boards[dev->board].name, sizeof(cap->card));
1167 sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1168 cap->version = CX25821_VERSION_CODE;
1170 V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
1171 if (UNSET != dev->tuner_type)
1172 cap->capabilities |= V4L2_CAP_TUNER;
1176 int cx25821_vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1177 struct v4l2_fmtdesc *f)
1179 if (unlikely(f->index >= ARRAY_SIZE(formats)))
1182 strlcpy(f->description, formats[f->index].name, sizeof(f->description));
1183 f->pixelformat = formats[f->index].fourcc;
1188 int cx25821_vidioc_reqbufs(struct file *file, void *priv,
1189 struct v4l2_requestbuffers *p)
1191 struct cx25821_fh *fh = priv;
1192 return videobuf_reqbufs(get_queue(fh), p);
1195 int cx25821_vidioc_querybuf(struct file *file, void *priv,
1196 struct v4l2_buffer *p)
1198 struct cx25821_fh *fh = priv;
1199 return videobuf_querybuf(get_queue(fh), p);
1202 int cx25821_vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1204 struct cx25821_fh *fh = priv;
1205 return videobuf_qbuf(get_queue(fh), p);
1208 int cx25821_vidioc_g_priority(struct file *file, void *f, enum v4l2_priority *p)
1210 struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev;
1211 struct cx25821_fh *fh = f;
1213 *p = v4l2_prio_max(&dev->channels[fh->channel_id].prio);
1218 int cx25821_vidioc_s_priority(struct file *file, void *f,
1219 enum v4l2_priority prio)
1221 struct cx25821_fh *fh = f;
1222 struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev;
1224 return v4l2_prio_change(&dev->channels[fh->channel_id].prio, &fh->prio,
1229 int cx25821_vidioc_s_std(struct file *file, void *priv, v4l2_std_id * tvnorms)
1231 struct cx25821_fh *fh = priv;
1232 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1235 dprintk(1, "%s()\n", __func__);
1238 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
1244 if (dev->tvnorm == *tvnorms)
1247 mutex_lock(&dev->lock);
1248 cx25821_set_tvnorm(dev, *tvnorms);
1249 mutex_unlock(&dev->lock);
1251 medusa_set_videostandard(dev);
1257 int cx25821_enum_input(struct cx25821_dev *dev, struct v4l2_input *i)
1259 static const char * const iname[] = {
1260 [CX25821_VMUX_COMPOSITE] = "Composite",
1261 [CX25821_VMUX_SVIDEO] = "S-Video",
1262 [CX25821_VMUX_DEBUG] = "for debug only",
1265 dprintk(1, "%s()\n", __func__);
1271 if (0 == INPUT(n)->type)
1274 i->type = V4L2_INPUT_TYPE_CAMERA;
1275 strcpy(i->name, iname[INPUT(n)->type]);
1277 i->std = CX25821_NORMS;
1281 int cx25821_vidioc_enum_input(struct file *file, void *priv,
1282 struct v4l2_input *i)
1284 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1285 dprintk(1, "%s()\n", __func__);
1286 return cx25821_enum_input(dev, i);
1289 int cx25821_vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1291 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1294 dprintk(1, "%s(): returns %d\n", __func__, *i);
1298 int cx25821_vidioc_s_input(struct file *file, void *priv, unsigned int i)
1300 struct cx25821_fh *fh = priv;
1301 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1304 dprintk(1, "%s(%d)\n", __func__, i);
1307 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
1314 dprintk(1, "%s(): -EINVAL\n", __func__);
1318 mutex_lock(&dev->lock);
1319 cx25821_video_mux(dev, i);
1320 mutex_unlock(&dev->lock);
1325 int cx25821_vidioc_g_frequency(struct file *file, void *priv,
1326 struct v4l2_frequency *f)
1328 struct cx25821_fh *fh = priv;
1329 struct cx25821_dev *dev = fh->dev;
1331 f->frequency = dev->freq;
1333 cx25821_call_all(dev, tuner, g_frequency, f);
1338 int cx25821_set_freq(struct cx25821_dev *dev, struct v4l2_frequency *f)
1340 mutex_lock(&dev->lock);
1341 dev->freq = f->frequency;
1343 cx25821_call_all(dev, tuner, s_frequency, f);
1345 /* When changing channels it is required to reset TVAUDIO */
1348 mutex_unlock(&dev->lock);
1353 int cx25821_vidioc_s_frequency(struct file *file, void *priv,
1354 struct v4l2_frequency *f)
1356 struct cx25821_fh *fh = priv;
1357 struct cx25821_dev *dev;
1362 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
1367 pr_err("Invalid fh pointer!\n");
1371 return cx25821_set_freq(dev, f);
1375 #ifdef CONFIG_VIDEO_ADV_DEBUG
1376 int cx25821_vidioc_g_register(struct file *file, void *fh,
1377 struct v4l2_dbg_register *reg)
1379 struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev;
1381 if (!v4l2_chip_match_host(®->match))
1384 cx25821_call_all(dev, core, g_register, reg);
1389 int cx25821_vidioc_s_register(struct file *file, void *fh,
1390 struct v4l2_dbg_register *reg)
1392 struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev;
1394 if (!v4l2_chip_match_host(®->match))
1397 cx25821_call_all(dev, core, s_register, reg);
1405 int cx25821_vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1407 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1409 if (unlikely(UNSET == dev->tuner_type))
1414 strcpy(t->name, "Television");
1415 t->type = V4L2_TUNER_ANALOG_TV;
1416 t->capability = V4L2_TUNER_CAP_NORM;
1417 t->rangehigh = 0xffffffffUL;
1419 t->signal = 0xffff; /* LOCKED */
1423 int cx25821_vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1425 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1426 struct cx25821_fh *fh = priv;
1430 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
1436 dprintk(1, "%s()\n", __func__);
1437 if (UNSET == dev->tuner_type)
1446 /*****************************************************************************/
1447 static const struct v4l2_queryctrl no_ctl = {
1449 .flags = V4L2_CTRL_FLAG_DISABLED,
1452 static struct v4l2_queryctrl cx25821_ctls[] = {
1455 .id = V4L2_CID_BRIGHTNESS,
1456 .name = "Brightness",
1460 .default_value = 6200,
1461 .type = V4L2_CTRL_TYPE_INTEGER,
1463 .id = V4L2_CID_CONTRAST,
1468 .default_value = 5000,
1469 .type = V4L2_CTRL_TYPE_INTEGER,
1471 .id = V4L2_CID_SATURATION,
1472 .name = "Saturation",
1476 .default_value = 5000,
1477 .type = V4L2_CTRL_TYPE_INTEGER,
1484 .default_value = 5000,
1485 .type = V4L2_CTRL_TYPE_INTEGER,
1488 static const int CX25821_CTLS = ARRAY_SIZE(cx25821_ctls);
1490 static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl)
1494 if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1)
1496 for (i = 0; i < CX25821_CTLS; i++)
1497 if (cx25821_ctls[i].id == qctrl->id)
1499 if (i == CX25821_CTLS) {
1503 *qctrl = cx25821_ctls[i];
1507 int cx25821_vidioc_queryctrl(struct file *file, void *priv,
1508 struct v4l2_queryctrl *qctrl)
1510 return cx25821_ctrl_query(qctrl);
1513 /* ------------------------------------------------------------------ */
1514 /* VIDEO CTRL IOCTLS */
1516 static const struct v4l2_queryctrl *ctrl_by_id(unsigned int id)
1520 for (i = 0; i < CX25821_CTLS; i++)
1521 if (cx25821_ctls[i].id == id)
1522 return cx25821_ctls + i;
1526 int cx25821_vidioc_g_ctrl(struct file *file, void *priv,
1527 struct v4l2_control *ctl)
1529 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1530 struct cx25821_fh *fh = priv;
1532 const struct v4l2_queryctrl *ctrl;
1534 ctrl = ctrl_by_id(ctl->id);
1539 case V4L2_CID_BRIGHTNESS:
1540 ctl->value = dev->channels[fh->channel_id].ctl_bright;
1543 ctl->value = dev->channels[fh->channel_id].ctl_hue;
1545 case V4L2_CID_CONTRAST:
1546 ctl->value = dev->channels[fh->channel_id].ctl_contrast;
1548 case V4L2_CID_SATURATION:
1549 ctl->value = dev->channels[fh->channel_id].ctl_saturation;
1555 int cx25821_set_control(struct cx25821_dev *dev,
1556 struct v4l2_control *ctl, int chan_num)
1559 const struct v4l2_queryctrl *ctrl;
1563 ctrl = ctrl_by_id(ctl->id);
1568 switch (ctrl->type) {
1569 case V4L2_CTRL_TYPE_BOOLEAN:
1570 case V4L2_CTRL_TYPE_MENU:
1571 case V4L2_CTRL_TYPE_INTEGER:
1572 if (ctl->value < ctrl->minimum)
1573 ctl->value = ctrl->minimum;
1574 if (ctl->value > ctrl->maximum)
1575 ctl->value = ctrl->maximum;
1582 case V4L2_CID_BRIGHTNESS:
1583 dev->channels[chan_num].ctl_bright = ctl->value;
1584 medusa_set_brightness(dev, ctl->value, chan_num);
1587 dev->channels[chan_num].ctl_hue = ctl->value;
1588 medusa_set_hue(dev, ctl->value, chan_num);
1590 case V4L2_CID_CONTRAST:
1591 dev->channels[chan_num].ctl_contrast = ctl->value;
1592 medusa_set_contrast(dev, ctl->value, chan_num);
1594 case V4L2_CID_SATURATION:
1595 dev->channels[chan_num].ctl_saturation = ctl->value;
1596 medusa_set_saturation(dev, ctl->value, chan_num);
1605 static void cx25821_init_controls(struct cx25821_dev *dev, int chan_num)
1607 struct v4l2_control ctrl;
1609 for (i = 0; i < CX25821_CTLS; i++) {
1610 ctrl.id = cx25821_ctls[i].id;
1611 ctrl.value = cx25821_ctls[i].default_value;
1613 cx25821_set_control(dev, &ctrl, chan_num);
1617 int cx25821_vidioc_cropcap(struct file *file, void *priv,
1618 struct v4l2_cropcap *cropcap)
1620 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1622 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1624 cropcap->bounds.top = cropcap->bounds.left = 0;
1625 cropcap->bounds.width = 720;
1626 cropcap->bounds.height = dev->tvnorm == V4L2_STD_PAL_BG ? 576 : 480;
1627 cropcap->pixelaspect.numerator =
1628 dev->tvnorm == V4L2_STD_PAL_BG ? 59 : 10;
1629 cropcap->pixelaspect.denominator =
1630 dev->tvnorm == V4L2_STD_PAL_BG ? 54 : 11;
1631 cropcap->defrect = cropcap->bounds;
1635 int cx25821_vidioc_s_crop(struct file *file, void *priv, struct v4l2_crop *crop)
1637 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1638 struct cx25821_fh *fh = priv;
1642 err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
1647 /* cx25821_vidioc_s_crop not supported */
1651 int cx25821_vidioc_g_crop(struct file *file, void *priv, struct v4l2_crop *crop)
1653 /* cx25821_vidioc_g_crop not supported */
1657 int cx25821_vidioc_querystd(struct file *file, void *priv, v4l2_std_id * norm)
1659 /* medusa does not support video standard sensing of current input */
1660 *norm = CX25821_NORMS;
1665 int cx25821_is_valid_width(u32 width, v4l2_std_id tvnorm)
1667 if (tvnorm == V4L2_STD_PAL_BG) {
1668 if (width == 352 || width == 720)
1674 if (tvnorm == V4L2_STD_NTSC_M) {
1675 if (width == 320 || width == 352 || width == 720)
1683 int cx25821_is_valid_height(u32 height, v4l2_std_id tvnorm)
1685 if (tvnorm == V4L2_STD_PAL_BG) {
1686 if (height == 576 || height == 288)
1692 if (tvnorm == V4L2_STD_NTSC_M) {
1693 if (height == 480 || height == 240)
1702 static long video_ioctl_upstream9(struct file *file, unsigned int cmd,
1705 struct cx25821_fh *fh = file->private_data;
1706 struct cx25821_dev *dev = fh->dev;
1708 struct upstream_user_struct *data_from_user;
1710 data_from_user = (struct upstream_user_struct *)arg;
1712 if (!data_from_user) {
1713 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1717 command = data_from_user->command;
1719 if (command != UPSTREAM_START_VIDEO && command != UPSTREAM_STOP_VIDEO)
1722 dev->input_filename = data_from_user->input_filename;
1723 dev->input_audiofilename = data_from_user->input_filename;
1724 dev->vid_stdname = data_from_user->vid_stdname;
1725 dev->pixel_format = data_from_user->pixel_format;
1726 dev->channel_select = data_from_user->channel_select;
1727 dev->command = data_from_user->command;
1730 case UPSTREAM_START_VIDEO:
1731 cx25821_start_upstream_video_ch1(dev, data_from_user);
1734 case UPSTREAM_STOP_VIDEO:
1735 cx25821_stop_upstream_video_ch1(dev);
1742 static long video_ioctl_upstream10(struct file *file, unsigned int cmd,
1745 struct cx25821_fh *fh = file->private_data;
1746 struct cx25821_dev *dev = fh->dev;
1748 struct upstream_user_struct *data_from_user;
1750 data_from_user = (struct upstream_user_struct *)arg;
1752 if (!data_from_user) {
1753 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1757 command = data_from_user->command;
1759 if (command != UPSTREAM_START_VIDEO && command != UPSTREAM_STOP_VIDEO)
1762 dev->input_filename_ch2 = data_from_user->input_filename;
1763 dev->input_audiofilename = data_from_user->input_filename;
1764 dev->vid_stdname_ch2 = data_from_user->vid_stdname;
1765 dev->pixel_format_ch2 = data_from_user->pixel_format;
1766 dev->channel_select_ch2 = data_from_user->channel_select;
1767 dev->command_ch2 = data_from_user->command;
1770 case UPSTREAM_START_VIDEO:
1771 cx25821_start_upstream_video_ch2(dev, data_from_user);
1774 case UPSTREAM_STOP_VIDEO:
1775 cx25821_stop_upstream_video_ch2(dev);
1782 static long video_ioctl_upstream11(struct file *file, unsigned int cmd,
1785 struct cx25821_fh *fh = file->private_data;
1786 struct cx25821_dev *dev = fh->dev;
1788 struct upstream_user_struct *data_from_user;
1790 data_from_user = (struct upstream_user_struct *)arg;
1792 if (!data_from_user) {
1793 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1797 command = data_from_user->command;
1799 if (command != UPSTREAM_START_AUDIO && command != UPSTREAM_STOP_AUDIO)
1802 dev->input_filename = data_from_user->input_filename;
1803 dev->input_audiofilename = data_from_user->input_filename;
1804 dev->vid_stdname = data_from_user->vid_stdname;
1805 dev->pixel_format = data_from_user->pixel_format;
1806 dev->channel_select = data_from_user->channel_select;
1807 dev->command = data_from_user->command;
1810 case UPSTREAM_START_AUDIO:
1811 cx25821_start_upstream_audio(dev, data_from_user);
1814 case UPSTREAM_STOP_AUDIO:
1815 cx25821_stop_upstream_audio(dev);
1822 static long video_ioctl_set(struct file *file, unsigned int cmd,
1825 struct cx25821_fh *fh = file->private_data;
1826 struct cx25821_dev *dev = fh->dev;
1827 struct downstream_user_struct *data_from_user;
1830 int selected_channel = 0, pix_format = 0, i = 0;
1831 int cif_enable = 0, cif_width = 0;
1834 data_from_user = (struct downstream_user_struct *)arg;
1836 if (!data_from_user) {
1837 pr_err("%s(): User data is INVALID. Returning\n", __func__);
1841 command = data_from_user->command;
1843 if (command != SET_VIDEO_STD && command != SET_PIXEL_FORMAT
1844 && command != ENABLE_CIF_RESOLUTION && command != REG_READ
1845 && command != REG_WRITE && command != MEDUSA_READ
1846 && command != MEDUSA_WRITE) {
1852 dev->tvnorm = !strcmp(data_from_user->vid_stdname, "PAL") ?
1853 V4L2_STD_PAL_BG : V4L2_STD_NTSC_M;
1854 medusa_set_videostandard(dev);
1857 case SET_PIXEL_FORMAT:
1858 selected_channel = data_from_user->decoder_select;
1859 pix_format = data_from_user->pixel_format;
1861 if (!(selected_channel <= 7 && selected_channel >= 0)) {
1862 selected_channel -= 4;
1863 selected_channel = selected_channel % 8;
1866 if (selected_channel >= 0)
1867 cx25821_set_pixel_format(dev, selected_channel,
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;
1878 if (dev->tvnorm & V4L2_STD_PAL_BG
1879 || dev->tvnorm & V4L2_STD_PAL_DK)
1882 width = (cif_width == 320 || cif_width == 352) ?
1886 if (!(selected_channel <= 7 && selected_channel >= 0)) {
1887 selected_channel -= 4;
1888 selected_channel = selected_channel % 8;
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;
1896 for (i = 0; i < VID_CHANNEL_NUM; i++) {
1897 dev->channels[i].use_cif_resolution =
1899 dev->channels[i].cif_width = width;
1903 medusa_set_resolution(dev, width, selected_channel);
1906 data_from_user->reg_data = cx_read(data_from_user->reg_address);
1909 cx_write(data_from_user->reg_address, data_from_user->reg_data);
1912 value = cx25821_i2c_read(&dev->i2c_bus[0],
1913 (u16) data_from_user->reg_address,
1914 &data_from_user->reg_data);
1917 cx25821_i2c_write(&dev->i2c_bus[0],
1918 (u16) data_from_user->reg_address,
1919 data_from_user->reg_data);
1926 static long cx25821_video_ioctl(struct file *file,
1927 unsigned int cmd, unsigned long arg)
1931 struct cx25821_fh *fh = file->private_data;
1933 /* check to see if it's the video upstream */
1934 if (fh->channel_id == SRAM_CH09) {
1935 ret = video_ioctl_upstream9(file, cmd, arg);
1937 } else if (fh->channel_id == SRAM_CH10) {
1938 ret = video_ioctl_upstream10(file, cmd, arg);
1940 } else if (fh->channel_id == SRAM_CH11) {
1941 ret = video_ioctl_upstream11(file, cmd, arg);
1942 ret = video_ioctl_set(file, cmd, arg);
1946 return video_ioctl2(file, cmd, arg);
1949 /* exported stuff */
1950 static const struct v4l2_file_operations video_fops = {
1951 .owner = THIS_MODULE,
1953 .release = video_release,
1956 .mmap = cx25821_video_mmap,
1957 .ioctl = cx25821_video_ioctl,
1960 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1961 .vidioc_querycap = cx25821_vidioc_querycap,
1962 .vidioc_enum_fmt_vid_cap = cx25821_vidioc_enum_fmt_vid_cap,
1963 .vidioc_g_fmt_vid_cap = cx25821_vidioc_g_fmt_vid_cap,
1964 .vidioc_try_fmt_vid_cap = cx25821_vidioc_try_fmt_vid_cap,
1965 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1966 .vidioc_reqbufs = cx25821_vidioc_reqbufs,
1967 .vidioc_querybuf = cx25821_vidioc_querybuf,
1968 .vidioc_qbuf = cx25821_vidioc_qbuf,
1969 .vidioc_dqbuf = vidioc_dqbuf,
1971 .vidioc_s_std = cx25821_vidioc_s_std,
1972 .vidioc_querystd = cx25821_vidioc_querystd,
1974 .vidioc_cropcap = cx25821_vidioc_cropcap,
1975 .vidioc_s_crop = cx25821_vidioc_s_crop,
1976 .vidioc_g_crop = cx25821_vidioc_g_crop,
1977 .vidioc_enum_input = cx25821_vidioc_enum_input,
1978 .vidioc_g_input = cx25821_vidioc_g_input,
1979 .vidioc_s_input = cx25821_vidioc_s_input,
1980 .vidioc_g_ctrl = cx25821_vidioc_g_ctrl,
1981 .vidioc_s_ctrl = vidioc_s_ctrl,
1982 .vidioc_queryctrl = cx25821_vidioc_queryctrl,
1983 .vidioc_streamon = vidioc_streamon,
1984 .vidioc_streamoff = vidioc_streamoff,
1985 .vidioc_log_status = vidioc_log_status,
1986 .vidioc_g_priority = cx25821_vidioc_g_priority,
1987 .vidioc_s_priority = cx25821_vidioc_s_priority,
1989 .vidioc_g_tuner = cx25821_vidioc_g_tuner,
1990 .vidioc_s_tuner = cx25821_vidioc_s_tuner,
1991 .vidioc_g_frequency = cx25821_vidioc_g_frequency,
1992 .vidioc_s_frequency = cx25821_vidioc_s_frequency,
1994 #ifdef CONFIG_VIDEO_ADV_DEBUG
1995 .vidioc_g_register = cx25821_vidioc_g_register,
1996 .vidioc_s_register = cx25821_vidioc_s_register,
2000 struct video_device cx25821_videoioctl_template = {
2001 .name = "cx25821-videoioctl",
2002 .fops = &video_fops,
2003 .ioctl_ops = &video_ioctl_ops,
2004 .tvnorms = CX25821_NORMS,
2005 .current_norm = V4L2_STD_NTSC_M,