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, struct cx25821_dmaqueue *q)
115 struct cx25821_buffer *buf;
116 struct list_head *item;
117 dprintk(1, "%s()\n", __func__);
119 if (!list_empty(&q->active)) {
120 list_for_each(item, &q->active)
121 buf = list_entry(item, struct cx25821_buffer, vb.queue);
124 if (!list_empty(&q->queued)) {
125 list_for_each(item, &q->queued)
126 buf = list_entry(item, struct cx25821_buffer, vb.queue);
131 void cx25821_video_wakeup(struct cx25821_dev *dev, struct cx25821_dmaqueue *q,
134 struct cx25821_buffer *buf;
137 for (bc = 0;; bc++) {
138 if (list_empty(&q->active)) {
139 dprintk(1, "bc=%d (=0: active empty)\n", bc);
144 list_entry(q->active.next, struct cx25821_buffer, vb.queue);
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) {
153 do_gettimeofday(&buf->vb.ts);
154 buf->vb.state = VIDEOBUF_DONE;
155 list_del(&buf->vb.queue);
156 wake_up(&buf->vb.done);
159 if (list_empty(&q->active))
160 del_timer(&q->timeout);
162 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
164 pr_err("%s: %d buffers handled (should be 1)\n",
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, unsigned int bit)
225 dprintk(1, "%s()\n", __func__);
226 if (fh->resources & bit)
227 /* have it already allocated */
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);
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);
245 int cx25821_res_check(struct cx25821_fh *fh, unsigned int bit)
247 return fh->resources & bit;
250 int cx25821_res_locked(struct cx25821_fh *fh, unsigned int bit)
252 return fh->dev->channels[fh->channel_id].resources & bit;
255 void cx25821_res_free(struct cx25821_dev *dev, struct cx25821_fh *fh, unsigned int bits)
257 BUG_ON((fh->resources & bits) != bits);
258 dprintk(1, "%s()\n", __func__);
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);
267 int cx25821_video_mux(struct cx25821_dev *dev, unsigned int input)
269 struct v4l2_routing route;
270 memset(&route, 0, sizeof(route));
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);
277 route.input = INPUT(input)->vmux;
279 /* Tell the internal A/V decoder */
280 cx25821_call_all(dev, video, s_routing, INPUT(input)->vmux, 0, 0);
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)
292 /* setup fifo + format */
293 cx25821_sram_channel_setup(dev, channel, buf->bpl, buf->risc.dma);
296 cx_write(channel->gpcnt_ctl, 3);
300 cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | (1 << channel->i));
301 cx_set(channel->int_msk, 0x11);
304 cx_write(channel->dma_ctl, 0x11); /* FIFO and RISC enable */
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);
313 int cx25821_restart_video_queue(struct cx25821_dev *dev,
314 struct cx25821_dmaqueue *q,
315 struct sram_channel *channel)
317 struct cx25821_buffer *buf, *prev;
318 struct list_head *item;
320 if (!list_empty(&q->active)) {
322 list_entry(q->active.next, struct cx25821_buffer, vb.queue);
324 cx25821_start_video_dma(dev, q, buf, channel);
326 list_for_each(item, &q->active) {
327 buf = list_entry(item, struct cx25821_buffer, vb.queue);
328 buf->count = q->count++;
331 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
337 if (list_empty(&q->queued))
341 list_entry(q->queued.next, struct cx25821_buffer, vb.queue);
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 */
364 void cx25821_vid_timeout(unsigned long data)
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;
373 /* cx25821_sram_channel_dump(dev, channel); */
374 cx_clear(channel->dma_ctl, 0x11);
376 spin_lock_irqsave(&dev->slock, flags);
377 while (!list_empty(&q->active)) {
379 list_entry(q->active.next, struct cx25821_buffer, vb.queue);
380 list_del(&buf->vb.queue);
382 buf->vb.state = VIDEOBUF_ERROR;
383 wake_up(&buf->vb.done);
386 cx25821_restart_video_queue(dev, q, channel);
387 spin_unlock_irqrestore(&dev->slock, flags);
390 int cx25821_video_irq(struct cx25821_dev *dev, int chan_num, u32 status)
395 struct sram_channel *channel = dev->channels[chan_num].sram_channels;
397 mask = cx_read(channel->int_msk);
398 if (0 == (status & mask))
401 cx_write(channel->int_stat, status);
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);
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);
423 dprintk(2, "stopper video\n");
424 spin_lock(&dev->slock);
425 cx25821_restart_video_queue(dev,
426 &dev->channels[channel->i].vidq,
428 spin_unlock(&dev->slock);
434 void cx25821_videoioctl_unregister(struct cx25821_dev *dev)
436 if (dev->ioctl_dev) {
437 if (video_is_registered(dev->ioctl_dev))
438 video_unregister_device(dev->ioctl_dev);
440 video_device_release(dev->ioctl_dev);
442 dev->ioctl_dev = NULL;
446 void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num)
448 cx_clear(PCI_INT_MSK, 1);
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);
455 video_device_release(
456 dev->channels[chan_num].video_dev);
458 dev->channels[chan_num].video_dev = NULL;
460 btcx_riscmem_free(dev->pci,
461 &dev->channels[chan_num].vidq.stopper);
463 pr_warn("device %d released!\n", chan_num);
468 int cx25821_video_register(struct cx25821_dev *dev)
473 struct video_device cx25821_video_device = {
474 .name = "cx25821-video",
477 .ioctl_ops = &video_ioctl_ops,
478 .tvnorms = CX25821_NORMS,
479 .current_norm = V4L2_STD_NTSC_M,
482 spin_lock_init(&dev->slock);
484 for (i = 0; i < MAX_VID_CHANNEL_NUM - 1; ++i) {
485 cx25821_init_controls(dev, i);
487 cx25821_risc_stopper(dev->pci,
488 &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,
499 INIT_LIST_HEAD(&dev->channels[i].vidq.active);
500 INIT_LIST_HEAD(&dev->channels[i].vidq.queued);
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 =
507 dev->channels[i].vidq.timeout.data =
508 (unsigned long)&dev->channels[i].timeout_data;
509 init_timer(&dev->channels[i].vidq.timeout);
511 /* register v4l devices */
512 dev->channels[i].video_dev = cx25821_vdev_init(dev,
513 dev->pci, &cx25821_video_device, "video");
515 err = video_register_device(dev->channels[i].video_dev,
516 VFL_TYPE_GRABBER, video_nr[dev->nr]);
523 /* set PCI interrupt */
524 cx_set(PCI_INT_MSK, 0xff);
526 /* initial device configuration */
527 mutex_lock(&dev->lock);
529 dev->tvnorm = cx25821_video_device.current_norm;
530 cx25821_set_tvnorm(dev, dev->tvnorm);
532 mutex_unlock(&dev->lock);
538 cx25821_video_unregister(dev, i);
542 int cx25821_buffer_setup(struct videobuf_queue *q, unsigned int *count,
545 struct cx25821_fh *fh = q->priv_data;
547 *size = fh->fmt->depth * fh->width * fh->height >> 3;
552 if (*size * *count > vid_limit * 1024 * 1024)
553 *count = (vid_limit * 1024 * 1024) / *size;
558 int cx25821_buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
559 enum v4l2_field field)
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;
571 BUG_ON(NULL == fh->fmt);
572 if (fh->width < 48 || fh->width > 720 ||
573 fh->height < 32 || fh->height > 576)
576 buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
578 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
581 if (buf->fmt != fh->fmt ||
582 buf->vb.width != fh->width ||
583 buf->vb.height != fh->height || buf->vb.field != field) {
585 buf->vb.width = fh->width;
586 buf->vb.height = fh->height;
587 buf->vb.field = field;
591 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
593 rc = videobuf_iolock(q, &buf->vb, NULL);
595 printk(KERN_DEBUG pr_fmt("videobuf_iolock failed!\n"));
600 dprintk(1, "init_buffer=%d\n", init_buffer);
604 channel_opened = dev->channel_opened;
605 channel_opened = (channel_opened < 0
606 || channel_opened > 7) ? 7 : channel_opened;
608 if (dev->channels[channel_opened]
609 .pixel_formats == PIXEL_FRMT_411)
610 buf->bpl = (buf->fmt->depth * buf->vb.width) >> 3;
612 buf->bpl = (buf->fmt->depth >> 3) * (buf->vb.width);
614 if (dev->channels[channel_opened]
615 .pixel_formats == PIXEL_FRMT_411) {
616 bpl_local = buf->bpl;
618 bpl_local = buf->bpl; /* Default */
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;
628 dev->channels[channel_opened].
635 switch (buf->vb.field) {
637 cx25821_risc_buffer(dev->pci, &buf->risc,
638 dma->sglist, 0, UNSET,
639 buf->bpl, 0, buf->vb.height);
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);
646 case V4L2_FIELD_INTERLACED:
647 /* All other formats are top field first */
649 line1_offset = buf->bpl;
650 dprintk(1, "top field first\n");
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);
657 case V4L2_FIELD_SEQ_TB:
658 cx25821_risc_buffer(dev->pci, &buf->risc,
660 0, buf->bpl * (buf->vb.height >> 1),
661 buf->bpl, 0, buf->vb.height >> 1);
663 case V4L2_FIELD_SEQ_BT:
664 cx25821_risc_buffer(dev->pci, &buf->risc,
666 buf->bpl * (buf->vb.height >> 1), 0,
667 buf->bpl, 0, buf->vb.height >> 1);
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);
678 buf->vb.state = VIDEOBUF_PREPARED;
683 cx25821_free_buffer(q, buf);
687 void cx25821_buffer_release(struct videobuf_queue *q, 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].
752 buf->vb.state = VIDEOBUF_ACTIVE;
753 buf->count = q->count++;
754 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
756 "[%p/%d] buffer_queue - first active, buf cnt = %d, \
758 buf, buf->vb.i, buf->count, q->count);
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);
770 /* 64 bit bits 63-32 */
771 prev->risc.jmp[2] = cpu_to_le32(0);
773 "[%p/%d] buffer_queue - append to active, \
775 buf, buf->vb.i, buf->count);
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,
785 if (list_empty(&q->active))
786 dprintk(2, "active queue empty!\n");
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,
796 static int video_open(struct file *file)
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;
808 dprintk(1, "open dev=%s type=%s\n",
809 video_device_node_name(vdev),
810 v4l2_type_names[type]);
812 /* allocate + initialize per filehandle data */
813 fh = kzalloc(sizeof(*fh), GFP_KERNEL);
817 mutex_lock(&cx25821_devlist_mutex);
819 list_for_each(list, &cx25821_devlist)
821 h = list_entry(list, struct cx25821_dev, devlist);
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) {
828 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
834 mutex_unlock(&cx25821_devlist_mutex);
839 file->private_data = fh;
843 fh->channel_id = ch_id;
845 if (dev->tvnorm & V4L2_STD_PAL_BG || dev->tvnorm & V4L2_STD_PAL_DK)
850 dev->channel_opened = fh->channel_id;
852 (dev->channels[ch_id].pixel_formats ==
853 PIXEL_FRMT_411) ? V4L2_PIX_FMT_Y41P : V4L2_PIX_FMT_YUYV;
854 fh->fmt = cx25821_format_by_fourcc(pix_format);
856 v4l2_prio_open(&dev->channels[ch_id].prio, &fh->prio);
858 videobuf_queue_sg_init(&fh->vidq, &cx25821_video_qops,
859 &dev->pci->dev, &dev->slock,
860 V4L2_BUF_TYPE_VIDEO_CAPTURE,
861 V4L2_FIELD_INTERLACED,
862 sizeof(struct cx25821_buffer), fh, NULL);
864 dprintk(1, "post videobuf_queue_init()\n");
865 mutex_unlock(&cx25821_devlist_mutex);
870 static ssize_t video_read(struct file *file, char __user * data, size_t count,
873 struct cx25821_fh *fh = file->private_data;
876 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
877 if (cx25821_res_locked(fh, RESOURCE_VIDEO0))
880 return videobuf_read_one(&fh->vidq, data, count, ppos,
881 file->f_flags & O_NONBLOCK);
889 static unsigned int video_poll(struct file *file,
890 struct poll_table_struct *wait)
892 struct cx25821_fh *fh = file->private_data;
893 struct cx25821_buffer *buf;
895 if (cx25821_res_check(fh, RESOURCE_VIDEO0)) {
896 /* streaming capture */
897 if (list_empty(&fh->vidq.stream))
899 buf = list_entry(fh->vidq.stream.next,
900 struct cx25821_buffer, vb.stream);
903 buf = (struct cx25821_buffer *)fh->vidq.read_buf;
908 poll_wait(file, &buf->vb.done, wait);
909 if (buf->vb.state == VIDEOBUF_DONE || buf->vb.state == VIDEOBUF_ERROR) {
910 if (buf->vb.state == VIDEOBUF_DONE) {
911 struct cx25821_dev *dev = fh->dev;
913 if (dev && dev->channels[fh->channel_id]
914 .use_cif_resolution) {
915 u8 cam_id = *((char *)buf->vb.baddr + 3);
916 memcpy((char *)buf->vb.baddr,
917 (char *)buf->vb.baddr + (fh->width * 2),
919 *((char *)buf->vb.baddr + 3) = cam_id;
923 return POLLIN | POLLRDNORM;
929 static int video_release(struct file *file)
931 struct cx25821_fh *fh = file->private_data;
932 struct cx25821_dev *dev = fh->dev;
934 /* stop the risc engine and fifo */
935 cx_write(channel0->dma_ctl, 0); /* FIFO and RISC disable */
937 /* stop video capture */
938 if (cx25821_res_check(fh, RESOURCE_VIDEO0)) {
939 videobuf_queue_cancel(&fh->vidq);
940 cx25821_res_free(dev, fh, RESOURCE_VIDEO0);
943 if (fh->vidq.read_buf) {
944 cx25821_buffer_release(&fh->vidq, fh->vidq.read_buf);
945 kfree(fh->vidq.read_buf);
948 videobuf_mmap_free(&fh->vidq);
950 v4l2_prio_close(&dev->channels[fh->channel_id].prio, fh->prio);
951 file->private_data = NULL;
957 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
959 struct cx25821_fh *fh = priv;
960 struct cx25821_dev *dev = fh->dev;
962 if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
965 if (unlikely(i != fh->type))
968 if (unlikely(!cx25821_res_get(dev, fh,
969 cx25821_get_resource(fh, RESOURCE_VIDEO0))))
972 return videobuf_streamon(get_queue(fh));
975 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
977 struct cx25821_fh *fh = priv;
978 struct cx25821_dev *dev = fh->dev;
981 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
986 res = cx25821_get_resource(fh, RESOURCE_VIDEO0);
987 err = videobuf_streamoff(get_queue(fh));
990 cx25821_res_free(dev, fh, res);
994 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
995 struct v4l2_format *f)
997 struct cx25821_fh *fh = priv;
998 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
999 struct v4l2_mbus_framefmt mbus_fmt;
1001 int pix_format = PIXEL_FRMT_422;
1004 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1010 dprintk(2, "%s()\n", __func__);
1011 err = cx25821_vidioc_try_fmt_vid_cap(file, priv, f);
1016 fh->fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
1017 fh->vidq.field = f->fmt.pix.field;
1019 /* check if width and height is valid based on set standard */
1020 if (cx25821_is_valid_width(f->fmt.pix.width, dev->tvnorm))
1021 fh->width = f->fmt.pix.width;
1023 if (cx25821_is_valid_height(f->fmt.pix.height, dev->tvnorm))
1024 fh->height = f->fmt.pix.height;
1026 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_Y41P)
1027 pix_format = PIXEL_FRMT_411;
1028 else if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV)
1029 pix_format = PIXEL_FRMT_422;
1033 cx25821_set_pixel_format(dev, SRAM_CH00, pix_format);
1035 /* check if cif resolution */
1036 if (fh->width == 320 || fh->width == 352)
1037 dev->channels[fh->channel_id].use_cif_resolution = 1;
1039 dev->channels[fh->channel_id].use_cif_resolution = 0;
1041 dev->channels[fh->channel_id].cif_width = fh->width;
1042 medusa_set_resolution(dev, fh->width, SRAM_CH00);
1044 dprintk(2, "%s(): width=%d height=%d field=%d\n", __func__, fh->width,
1045 fh->height, fh->vidq.field);
1046 v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
1047 cx25821_call_all(dev, video, s_mbus_fmt, &mbus_fmt);
1052 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1055 struct cx25821_fh *fh = priv;
1056 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1058 ret_val = videobuf_dqbuf(get_queue(fh), p, file->f_flags & O_NONBLOCK);
1060 p->sequence = dev->channels[fh->channel_id].vidq.count;
1065 static int vidioc_log_status(struct file *file, void *priv)
1067 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1068 struct cx25821_fh *fh = priv;
1071 struct sram_channel *sram_ch = dev->channels[fh->channel_id]
1075 snprintf(name, sizeof(name), "%s/2", dev->name);
1076 pr_info("%s/2: ============ START LOG STATUS ============\n",
1078 cx25821_call_all(dev, core, log_status);
1079 tmp = cx_read(sram_ch->dma_ctl);
1080 pr_info("Video input 0 is %s\n",
1081 (tmp & 0x11) ? "streaming" : "stopped");
1082 pr_info("%s/2: ============= END LOG STATUS =============\n",
1087 static int vidioc_s_ctrl(struct file *file, void *priv,
1088 struct v4l2_control *ctl)
1090 struct cx25821_fh *fh = priv;
1091 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1095 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1101 return cx25821_set_control(dev, ctl, fh->channel_id);
1105 int cx25821_vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f)
1107 struct cx25821_fh *fh = priv;
1109 f->fmt.pix.width = fh->width;
1110 f->fmt.pix.height = fh->height;
1111 f->fmt.pix.field = fh->vidq.field;
1112 f->fmt.pix.pixelformat = fh->fmt->fourcc;
1113 f->fmt.pix.bytesperline = (f->fmt.pix.width * fh->fmt->depth) >> 3;
1114 f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
1119 int cx25821_vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f)
1121 struct cx25821_fmt *fmt;
1122 enum v4l2_field field;
1123 unsigned int maxw, maxh;
1125 fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
1129 field = f->fmt.pix.field;
1133 if (V4L2_FIELD_ANY == field) {
1134 field = (f->fmt.pix.height > maxh / 2)
1135 ? V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP;
1139 case V4L2_FIELD_TOP:
1140 case V4L2_FIELD_BOTTOM:
1143 case V4L2_FIELD_INTERLACED:
1149 f->fmt.pix.field = field;
1150 if (f->fmt.pix.height < 32)
1151 f->fmt.pix.height = 32;
1152 if (f->fmt.pix.height > maxh)
1153 f->fmt.pix.height = maxh;
1154 if (f->fmt.pix.width < 48)
1155 f->fmt.pix.width = 48;
1156 if (f->fmt.pix.width > maxw)
1157 f->fmt.pix.width = maxw;
1158 f->fmt.pix.width &= ~0x03;
1159 f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3;
1160 f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
1165 int cx25821_vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap)
1167 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1169 strcpy(cap->driver, "cx25821");
1170 strlcpy(cap->card, cx25821_boards[dev->board].name, sizeof(cap->card));
1171 sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1172 cap->version = CX25821_VERSION_CODE;
1174 V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
1175 if (UNSET != dev->tuner_type)
1176 cap->capabilities |= V4L2_CAP_TUNER;
1180 int cx25821_vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1181 struct v4l2_fmtdesc *f)
1183 if (unlikely(f->index >= ARRAY_SIZE(formats)))
1186 strlcpy(f->description, formats[f->index].name, sizeof(f->description));
1187 f->pixelformat = formats[f->index].fourcc;
1192 int cx25821_vidioc_reqbufs(struct file *file, void *priv, struct v4l2_requestbuffers *p)
1194 struct cx25821_fh *fh = priv;
1195 return videobuf_reqbufs(get_queue(fh), p);
1198 int cx25821_vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *p)
1200 struct cx25821_fh *fh = priv;
1201 return videobuf_querybuf(get_queue(fh), p);
1204 int cx25821_vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1206 struct cx25821_fh *fh = priv;
1207 return videobuf_qbuf(get_queue(fh), p);
1210 int cx25821_vidioc_g_priority(struct file *file, void *f, enum v4l2_priority *p)
1212 struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev;
1213 struct cx25821_fh *fh = f;
1215 *p = v4l2_prio_max(&dev->channels[fh->channel_id].prio);
1220 int cx25821_vidioc_s_priority(struct file *file, void *f, enum v4l2_priority prio)
1222 struct cx25821_fh *fh = f;
1223 struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev;
1225 return v4l2_prio_change(&dev->channels[fh->channel_id]
1226 .prio, &fh->prio, prio);
1230 int cx25821_vidioc_s_std(struct file *file, void *priv, v4l2_std_id * tvnorms)
1232 struct cx25821_fh *fh = priv;
1233 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1236 dprintk(1, "%s()\n", __func__);
1239 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1245 if (dev->tvnorm == *tvnorms) {
1249 mutex_lock(&dev->lock);
1250 cx25821_set_tvnorm(dev, *tvnorms);
1251 mutex_unlock(&dev->lock);
1253 medusa_set_videostandard(dev);
1259 int cx25821_enum_input(struct cx25821_dev *dev, struct v4l2_input *i)
1261 static const char *iname[] = {
1262 [CX25821_VMUX_COMPOSITE] = "Composite",
1263 [CX25821_VMUX_SVIDEO] = "S-Video",
1264 [CX25821_VMUX_DEBUG] = "for debug only",
1267 dprintk(1, "%s()\n", __func__);
1273 if (0 == INPUT(n)->type)
1276 i->type = V4L2_INPUT_TYPE_CAMERA;
1277 strcpy(i->name, iname[INPUT(n)->type]);
1279 i->std = CX25821_NORMS;
1283 int cx25821_vidioc_enum_input(struct file *file, void *priv, struct v4l2_input *i)
1285 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1286 dprintk(1, "%s()\n", __func__);
1287 return cx25821_enum_input(dev, i);
1290 int cx25821_vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1292 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1295 dprintk(1, "%s(): returns %d\n", __func__, *i);
1299 int cx25821_vidioc_s_input(struct file *file, void *priv, unsigned int i)
1301 struct cx25821_fh *fh = priv;
1302 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1305 dprintk(1, "%s(%d)\n", __func__, i);
1308 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1315 dprintk(1, "%s(): -EINVAL\n", __func__);
1319 mutex_lock(&dev->lock);
1320 cx25821_video_mux(dev, i);
1321 mutex_unlock(&dev->lock);
1326 int cx25821_vidioc_g_frequency(struct file *file, void *priv, 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, struct v4l2_frequency *f)
1355 struct cx25821_fh *fh = priv;
1356 struct cx25821_dev *dev;
1361 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1366 pr_err("Invalid fh pointer!\n");
1370 return cx25821_set_freq(dev, f);
1374 #ifdef CONFIG_VIDEO_ADV_DEBUG
1375 int cx25821_vidioc_g_register(struct file *file, void *fh,
1376 struct v4l2_dbg_register *reg)
1378 struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev;
1380 if (!v4l2_chip_match_host(®->match))
1383 cx25821_call_all(dev, core, g_register, reg);
1388 int cx25821_vidioc_s_register(struct file *file, void *fh,
1389 struct v4l2_dbg_register *reg)
1391 struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev;
1393 if (!v4l2_chip_match_host(®->match))
1396 cx25821_call_all(dev, core, s_register, reg);
1404 int cx25821_vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1406 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1408 if (unlikely(UNSET == dev->tuner_type))
1413 strcpy(t->name, "Television");
1414 t->type = V4L2_TUNER_ANALOG_TV;
1415 t->capability = V4L2_TUNER_CAP_NORM;
1416 t->rangehigh = 0xffffffffUL;
1418 t->signal = 0xffff; /* LOCKED */
1422 int cx25821_vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1424 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1425 struct cx25821_fh *fh = priv;
1429 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1435 dprintk(1, "%s()\n", __func__);
1436 if (UNSET == dev->tuner_type)
1445 /*****************************************************************************/
1446 static const struct v4l2_queryctrl no_ctl = {
1448 .flags = V4L2_CTRL_FLAG_DISABLED,
1451 static struct v4l2_queryctrl cx25821_ctls[] = {
1454 .id = V4L2_CID_BRIGHTNESS,
1455 .name = "Brightness",
1459 .default_value = 6200,
1460 .type = V4L2_CTRL_TYPE_INTEGER,
1462 .id = V4L2_CID_CONTRAST,
1467 .default_value = 5000,
1468 .type = V4L2_CTRL_TYPE_INTEGER,
1470 .id = V4L2_CID_SATURATION,
1471 .name = "Saturation",
1475 .default_value = 5000,
1476 .type = V4L2_CTRL_TYPE_INTEGER,
1483 .default_value = 5000,
1484 .type = V4L2_CTRL_TYPE_INTEGER,
1487 static const int CX25821_CTLS = ARRAY_SIZE(cx25821_ctls);
1489 static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl)
1493 if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1)
1495 for (i = 0; i < CX25821_CTLS; i++)
1496 if (cx25821_ctls[i].id == qctrl->id)
1498 if (i == CX25821_CTLS) {
1502 *qctrl = cx25821_ctls[i];
1506 int cx25821_vidioc_queryctrl(struct file *file, void *priv,
1507 struct v4l2_queryctrl *qctrl)
1509 return cx25821_ctrl_query(qctrl);
1512 /* ------------------------------------------------------------------ */
1513 /* VIDEO CTRL IOCTLS */
1515 static const struct v4l2_queryctrl *ctrl_by_id(unsigned int id)
1519 for (i = 0; i < CX25821_CTLS; i++)
1520 if (cx25821_ctls[i].id == id)
1521 return cx25821_ctls + i;
1525 int cx25821_vidioc_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctl)
1527 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1528 struct cx25821_fh *fh = priv;
1530 const struct v4l2_queryctrl *ctrl;
1532 ctrl = ctrl_by_id(ctl->id);
1537 case V4L2_CID_BRIGHTNESS:
1538 ctl->value = dev->channels[fh->channel_id].ctl_bright;
1541 ctl->value = dev->channels[fh->channel_id].ctl_hue;
1543 case V4L2_CID_CONTRAST:
1544 ctl->value = dev->channels[fh->channel_id].ctl_contrast;
1546 case V4L2_CID_SATURATION:
1547 ctl->value = dev->channels[fh->channel_id].ctl_saturation;
1553 int cx25821_set_control(struct cx25821_dev *dev,
1554 struct v4l2_control *ctl, int chan_num)
1557 const struct v4l2_queryctrl *ctrl;
1561 ctrl = ctrl_by_id(ctl->id);
1566 switch (ctrl->type) {
1567 case V4L2_CTRL_TYPE_BOOLEAN:
1568 case V4L2_CTRL_TYPE_MENU:
1569 case V4L2_CTRL_TYPE_INTEGER:
1570 if (ctl->value < ctrl->minimum)
1571 ctl->value = ctrl->minimum;
1572 if (ctl->value > ctrl->maximum)
1573 ctl->value = ctrl->maximum;
1580 case V4L2_CID_BRIGHTNESS:
1581 dev->channels[chan_num].ctl_bright = ctl->value;
1582 medusa_set_brightness(dev, ctl->value, chan_num);
1585 dev->channels[chan_num].ctl_hue = ctl->value;
1586 medusa_set_hue(dev, ctl->value, chan_num);
1588 case V4L2_CID_CONTRAST:
1589 dev->channels[chan_num].ctl_contrast = ctl->value;
1590 medusa_set_contrast(dev, ctl->value, chan_num);
1592 case V4L2_CID_SATURATION:
1593 dev->channels[chan_num].ctl_saturation = ctl->value;
1594 medusa_set_saturation(dev, ctl->value, chan_num);
1603 static void cx25821_init_controls(struct cx25821_dev *dev, int chan_num)
1605 struct v4l2_control ctrl;
1607 for (i = 0; i < CX25821_CTLS; i++) {
1608 ctrl.id = cx25821_ctls[i].id;
1609 ctrl.value = cx25821_ctls[i].default_value;
1611 cx25821_set_control(dev, &ctrl, chan_num);
1615 int cx25821_vidioc_cropcap(struct file *file, void *priv, struct v4l2_cropcap *cropcap)
1617 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1619 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1621 cropcap->bounds.top = cropcap->bounds.left = 0;
1622 cropcap->bounds.width = 720;
1623 cropcap->bounds.height = dev->tvnorm == V4L2_STD_PAL_BG ? 576 : 480;
1624 cropcap->pixelaspect.numerator =
1625 dev->tvnorm == V4L2_STD_PAL_BG ? 59 : 10;
1626 cropcap->pixelaspect.denominator =
1627 dev->tvnorm == V4L2_STD_PAL_BG ? 54 : 11;
1628 cropcap->defrect = cropcap->bounds;
1632 int cx25821_vidioc_s_crop(struct file *file, void *priv, struct v4l2_crop *crop)
1634 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1635 struct cx25821_fh *fh = priv;
1639 err = v4l2_prio_check(&dev->channels[fh->channel_id].
1644 /* cx25821_vidioc_s_crop not supported */
1648 int cx25821_vidioc_g_crop(struct file *file, void *priv, struct v4l2_crop *crop)
1650 /* cx25821_vidioc_g_crop not supported */
1654 int cx25821_vidioc_querystd(struct file *file, void *priv, v4l2_std_id * norm)
1656 /* medusa does not support video standard sensing of current input */
1657 *norm = CX25821_NORMS;
1662 int cx25821_is_valid_width(u32 width, v4l2_std_id tvnorm)
1664 if (tvnorm == V4L2_STD_PAL_BG) {
1665 if (width == 352 || width == 720)
1671 if (tvnorm == V4L2_STD_NTSC_M) {
1672 if (width == 320 || width == 352 || width == 720)
1680 int cx25821_is_valid_height(u32 height, v4l2_std_id tvnorm)
1682 if (tvnorm == V4L2_STD_PAL_BG) {
1683 if (height == 576 || height == 288)
1689 if (tvnorm == V4L2_STD_NTSC_M) {
1690 if (height == 480 || height == 240)
1699 static long video_ioctl_upstream9(struct file *file, unsigned int cmd,
1702 struct cx25821_fh *fh = file->private_data;
1703 struct cx25821_dev *dev = fh->dev;
1705 struct upstream_user_struct *data_from_user;
1707 data_from_user = (struct upstream_user_struct *)arg;
1709 if (!data_from_user) {
1710 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1714 command = data_from_user->command;
1716 if (command != UPSTREAM_START_VIDEO &&
1717 command != UPSTREAM_STOP_VIDEO)
1720 dev->input_filename = data_from_user->input_filename;
1721 dev->input_audiofilename = data_from_user->input_filename;
1722 dev->vid_stdname = data_from_user->vid_stdname;
1723 dev->pixel_format = data_from_user->pixel_format;
1724 dev->channel_select = data_from_user->channel_select;
1725 dev->command = data_from_user->command;
1728 case UPSTREAM_START_VIDEO:
1729 cx25821_start_upstream_video_ch1(dev, data_from_user);
1732 case UPSTREAM_STOP_VIDEO:
1733 cx25821_stop_upstream_video_ch1(dev);
1740 static long video_ioctl_upstream10(struct file *file, unsigned int cmd,
1743 struct cx25821_fh *fh = file->private_data;
1744 struct cx25821_dev *dev = fh->dev;
1746 struct upstream_user_struct *data_from_user;
1748 data_from_user = (struct upstream_user_struct *)arg;
1750 if (!data_from_user) {
1751 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1755 command = data_from_user->command;
1757 if (command != UPSTREAM_START_VIDEO &&
1758 command != UPSTREAM_STOP_VIDEO)
1761 dev->input_filename_ch2 = data_from_user->input_filename;
1762 dev->input_audiofilename = data_from_user->input_filename;
1763 dev->vid_stdname_ch2 = data_from_user->vid_stdname;
1764 dev->pixel_format_ch2 = data_from_user->pixel_format;
1765 dev->channel_select_ch2 = data_from_user->channel_select;
1766 dev->command_ch2 = data_from_user->command;
1769 case UPSTREAM_START_VIDEO:
1770 cx25821_start_upstream_video_ch2(dev, data_from_user);
1773 case UPSTREAM_STOP_VIDEO:
1774 cx25821_stop_upstream_video_ch2(dev);
1781 static long video_ioctl_upstream11(struct file *file, unsigned int cmd,
1784 struct cx25821_fh *fh = file->private_data;
1785 struct cx25821_dev *dev = fh->dev;
1787 struct upstream_user_struct *data_from_user;
1789 data_from_user = (struct upstream_user_struct *)arg;
1791 if (!data_from_user) {
1792 pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
1796 command = data_from_user->command;
1798 if (command != UPSTREAM_START_AUDIO &&
1799 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) {
1853 !strcmp(data_from_user->vid_stdname,
1854 "PAL") ? V4L2_STD_PAL_BG : V4L2_STD_NTSC_M;
1855 medusa_set_videostandard(dev);
1858 case SET_PIXEL_FORMAT:
1859 selected_channel = data_from_user->decoder_select;
1860 pix_format = data_from_user->pixel_format;
1862 if (!(selected_channel <= 7 && selected_channel >= 0)) {
1863 selected_channel -= 4;
1864 selected_channel = selected_channel % 8;
1867 if (selected_channel >= 0)
1868 cx25821_set_pixel_format(dev, selected_channel,
1873 case ENABLE_CIF_RESOLUTION:
1874 selected_channel = data_from_user->decoder_select;
1875 cif_enable = data_from_user->cif_resolution_enable;
1876 cif_width = data_from_user->cif_width;
1879 if (dev->tvnorm & V4L2_STD_PAL_BG
1880 || dev->tvnorm & V4L2_STD_PAL_DK)
1883 width = (cif_width == 320
1884 || cif_width == 352) ? cif_width : 320;
1887 if (!(selected_channel <= 7 && selected_channel >= 0)) {
1888 selected_channel -= 4;
1889 selected_channel = selected_channel % 8;
1892 if (selected_channel <= 7 && selected_channel >= 0) {
1893 dev->channels[selected_channel].
1894 use_cif_resolution = cif_enable;
1895 dev->channels[selected_channel].cif_width = width;
1897 for (i = 0; i < VID_CHANNEL_NUM; i++) {
1898 dev->channels[i].use_cif_resolution =
1900 dev->channels[i].cif_width = width;
1904 medusa_set_resolution(dev, width, selected_channel);
1907 data_from_user->reg_data = cx_read(data_from_user->reg_address);
1910 cx_write(data_from_user->reg_address, data_from_user->reg_data);
1914 cx25821_i2c_read(&dev->i2c_bus[0],
1915 (u16) data_from_user->reg_address,
1916 &data_from_user->reg_data);
1919 cx25821_i2c_write(&dev->i2c_bus[0],
1920 (u16) data_from_user->reg_address,
1921 data_from_user->reg_data);
1928 static long cx25821_video_ioctl(struct file *file,
1929 unsigned int cmd, unsigned long arg)
1933 struct cx25821_fh *fh = file->private_data;
1935 /* check to see if it's the video upstream */
1936 if (fh->channel_id == SRAM_CH09) {
1937 ret = video_ioctl_upstream9(file, cmd, arg);
1939 } else if (fh->channel_id == SRAM_CH10) {
1940 ret = video_ioctl_upstream10(file, cmd, arg);
1942 } else if (fh->channel_id == SRAM_CH11) {
1943 ret = video_ioctl_upstream11(file, cmd, arg);
1944 ret = video_ioctl_set(file, cmd, arg);
1948 return video_ioctl2(file, cmd, arg);
1951 /* exported stuff */
1952 static const struct v4l2_file_operations video_fops = {
1953 .owner = THIS_MODULE,
1955 .release = video_release,
1958 .mmap = cx25821_video_mmap,
1959 .ioctl = cx25821_video_ioctl,
1962 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1963 .vidioc_querycap = cx25821_vidioc_querycap,
1964 .vidioc_enum_fmt_vid_cap = cx25821_vidioc_enum_fmt_vid_cap,
1965 .vidioc_g_fmt_vid_cap = cx25821_vidioc_g_fmt_vid_cap,
1966 .vidioc_try_fmt_vid_cap = cx25821_vidioc_try_fmt_vid_cap,
1967 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
1968 .vidioc_reqbufs = cx25821_vidioc_reqbufs,
1969 .vidioc_querybuf = cx25821_vidioc_querybuf,
1970 .vidioc_qbuf = cx25821_vidioc_qbuf,
1971 .vidioc_dqbuf = vidioc_dqbuf,
1973 .vidioc_s_std = cx25821_vidioc_s_std,
1974 .vidioc_querystd = cx25821_vidioc_querystd,
1976 .vidioc_cropcap = cx25821_vidioc_cropcap,
1977 .vidioc_s_crop = cx25821_vidioc_s_crop,
1978 .vidioc_g_crop = cx25821_vidioc_g_crop,
1979 .vidioc_enum_input = cx25821_vidioc_enum_input,
1980 .vidioc_g_input = cx25821_vidioc_g_input,
1981 .vidioc_s_input = cx25821_vidioc_s_input,
1982 .vidioc_g_ctrl = cx25821_vidioc_g_ctrl,
1983 .vidioc_s_ctrl = vidioc_s_ctrl,
1984 .vidioc_queryctrl = cx25821_vidioc_queryctrl,
1985 .vidioc_streamon = vidioc_streamon,
1986 .vidioc_streamoff = vidioc_streamoff,
1987 .vidioc_log_status = vidioc_log_status,
1988 .vidioc_g_priority = cx25821_vidioc_g_priority,
1989 .vidioc_s_priority = cx25821_vidioc_s_priority,
1991 .vidioc_g_tuner = cx25821_vidioc_g_tuner,
1992 .vidioc_s_tuner = cx25821_vidioc_s_tuner,
1993 .vidioc_g_frequency = cx25821_vidioc_g_frequency,
1994 .vidioc_s_frequency = cx25821_vidioc_s_frequency,
1996 #ifdef CONFIG_VIDEO_ADV_DEBUG
1997 .vidioc_g_register = cx25821_vidioc_g_register,
1998 .vidioc_s_register = cx25821_vidioc_s_register,
2002 struct video_device cx25821_videoioctl_template = {
2003 .name = "cx25821-videoioctl",
2004 .fops = &video_fops,
2005 .ioctl_ops = &video_ioctl_ops,
2006 .tvnorms = CX25821_NORMS,
2007 .current_norm = V4L2_STD_NTSC_M,