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 #include "cx25821-video.h"
29 MODULE_DESCRIPTION("v4l2 driver module for cx25821 based TV cards");
30 MODULE_AUTHOR("Hiep Huynh <hiep.huynh@conexant.com>");
31 MODULE_LICENSE("GPL");
33 static unsigned int video_nr[] = {[0 ... (CX25821_MAXBOARDS - 1)] = UNSET };
34 static unsigned int radio_nr[] = {[0 ... (CX25821_MAXBOARDS - 1)] = UNSET };
36 module_param_array(video_nr, int, NULL, 0444);
37 module_param_array(radio_nr, int, NULL, 0444);
39 MODULE_PARM_DESC(video_nr, "video device numbers");
40 MODULE_PARM_DESC(radio_nr, "radio device numbers");
42 static unsigned int video_debug = VIDEO_DEBUG;
43 module_param(video_debug, int, 0644);
44 MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
46 static unsigned int irq_debug;
47 module_param(irq_debug, int, 0644);
48 MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
50 unsigned int vid_limit = 16;
51 module_param(vid_limit, int, 0644);
52 MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
54 static void cx25821_init_controls(struct cx25821_dev *dev, int chan_num);
56 static const struct v4l2_file_operations video_fops;
57 static const struct v4l2_ioctl_ops video_ioctl_ops;
59 #define FORMAT_FLAGS_PACKED 0x01
61 struct cx25821_fmt formats[] = {
63 .name = "8 bpp, gray",
64 .fourcc = V4L2_PIX_FMT_GREY,
66 .flags = FORMAT_FLAGS_PACKED,
68 .name = "4:1:1, packed, Y41P",
69 .fourcc = V4L2_PIX_FMT_Y41P,
71 .flags = FORMAT_FLAGS_PACKED,
73 .name = "4:2:2, packed, YUYV",
74 .fourcc = V4L2_PIX_FMT_YUYV,
76 .flags = FORMAT_FLAGS_PACKED,
78 .name = "4:2:2, packed, UYVY",
79 .fourcc = V4L2_PIX_FMT_UYVY,
81 .flags = FORMAT_FLAGS_PACKED,
84 .fourcc = V4L2_PIX_FMT_YUV420,
86 .flags = FORMAT_FLAGS_PACKED,
90 int cx25821_get_format_size(void)
92 return ARRAY_SIZE(formats);
95 struct cx25821_fmt *format_by_fourcc(unsigned int fourcc)
99 if (fourcc == V4L2_PIX_FMT_Y41P || fourcc == V4L2_PIX_FMT_YUV411P) {
103 for (i = 0; i < ARRAY_SIZE(formats); i++)
104 if (formats[i].fourcc == fourcc)
107 printk(KERN_ERR "%s(0x%08x) NOT FOUND\n", __func__, fourcc);
111 void cx25821_dump_video_queue(struct cx25821_dev *dev, struct cx25821_dmaqueue *q)
113 struct cx25821_buffer *buf;
114 struct list_head *item;
115 dprintk(1, "%s()\n", __func__);
117 if (!list_empty(&q->active)) {
118 list_for_each(item, &q->active)
119 buf = list_entry(item, struct cx25821_buffer, vb.queue);
122 if (!list_empty(&q->queued)) {
123 list_for_each(item, &q->queued)
124 buf = list_entry(item, struct cx25821_buffer, vb.queue);
129 void cx25821_video_wakeup(struct cx25821_dev *dev, struct cx25821_dmaqueue *q,
132 struct cx25821_buffer *buf;
135 for (bc = 0;; bc++) {
136 if (list_empty(&q->active)) {
137 dprintk(1, "bc=%d (=0: active empty)\n", bc);
142 list_entry(q->active.next, struct cx25821_buffer, vb.queue);
144 /* count comes from the hw and it is 16bit wide --
145 * this trick handles wrap-arounds correctly for
146 * up to 32767 buffers in flight... */
147 if ((s16) (count - buf->count) < 0) {
151 do_gettimeofday(&buf->vb.ts);
152 buf->vb.state = VIDEOBUF_DONE;
153 list_del(&buf->vb.queue);
154 wake_up(&buf->vb.done);
157 if (list_empty(&q->active))
158 del_timer(&q->timeout);
160 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
162 printk(KERN_ERR "%s: %d buffers handled (should be 1)\n",
167 int cx25821_set_tvnorm(struct cx25821_dev *dev, v4l2_std_id norm)
169 dprintk(1, "%s(norm = 0x%08x) name: [%s]\n", __func__,
170 (unsigned int)norm, v4l2_norm_to_name(norm));
174 /* Tell the internal A/V decoder */
175 cx25821_call_all(dev, core, s_std, norm);
181 struct video_device *cx25821_vdev_init(struct cx25821_dev *dev,
183 struct video_device *template,
186 struct video_device *vfd;
187 dprintk(1, "%s()\n", __func__);
189 vfd = video_device_alloc();
193 vfd->v4l2_dev = &dev->v4l2_dev;
194 vfd->release = video_device_release;
195 snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name, type,
196 cx25821_boards[dev->board].name);
197 video_set_drvdata(vfd, dev);
202 static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl)
206 if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1)
208 for (i = 0; i < CX25821_CTLS; i++)
209 if (cx25821_ctls[i].v.id == qctrl->id)
211 if (i == CX25821_CTLS) {
215 *qctrl = cx25821_ctls[i].v;
220 /* resource management */
221 int cx25821_res_get(struct cx25821_dev *dev, struct cx25821_fh *fh, unsigned int bit)
223 dprintk(1, "%s()\n", __func__);
224 if (fh->resources & bit)
225 /* have it already allocated */
229 mutex_lock(&dev->lock);
230 if (dev->channels[fh->channel_id].resources & bit) {
231 /* no, someone else uses it */
232 mutex_unlock(&dev->lock);
235 /* it's free, grab it */
236 fh->resources |= bit;
237 dev->channels[fh->channel_id].resources |= bit;
238 dprintk(1, "res: get %d\n", bit);
239 mutex_unlock(&dev->lock);
243 int cx25821_res_check(struct cx25821_fh *fh, unsigned int bit)
245 return fh->resources & bit;
248 int cx25821_res_locked(struct cx25821_fh *fh, unsigned int bit)
250 return fh->dev->channels[fh->channel_id].resources & bit;
253 void cx25821_res_free(struct cx25821_dev *dev, struct cx25821_fh *fh, unsigned int bits)
255 BUG_ON((fh->resources & bits) != bits);
256 dprintk(1, "%s()\n", __func__);
258 mutex_lock(&dev->lock);
259 fh->resources &= ~bits;
260 dev->channels[fh->channel_id].resources &= ~bits;
261 dprintk(1, "res: put %d\n", bits);
262 mutex_unlock(&dev->lock);
265 int cx25821_video_mux(struct cx25821_dev *dev, unsigned int input)
267 struct v4l2_routing route;
268 memset(&route, 0, sizeof(route));
270 dprintk(1, "%s() video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
271 __func__, input, INPUT(input)->vmux, INPUT(input)->gpio0,
272 INPUT(input)->gpio1, INPUT(input)->gpio2, INPUT(input)->gpio3);
275 route.input = INPUT(input)->vmux;
277 /* Tell the internal A/V decoder */
278 cx25821_call_all(dev, video, s_routing, INPUT(input)->vmux, 0, 0);
283 int cx25821_start_video_dma(struct cx25821_dev *dev,
284 struct cx25821_dmaqueue *q,
285 struct cx25821_buffer *buf,
286 struct sram_channel *channel)
290 /* setup fifo + format */
291 cx25821_sram_channel_setup(dev, channel, buf->bpl, buf->risc.dma);
294 cx_write(channel->gpcnt_ctl, 3);
298 cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | (1 << channel->i));
299 cx_set(channel->int_msk, 0x11);
302 cx_write(channel->dma_ctl, 0x11); /* FIFO and RISC enable */
304 /* make sure upstream setting if any is reversed */
305 tmp = cx_read(VID_CH_MODE_SEL);
306 cx_write(VID_CH_MODE_SEL, tmp & 0xFFFFFE00);
311 int cx25821_restart_video_queue(struct cx25821_dev *dev,
312 struct cx25821_dmaqueue *q,
313 struct sram_channel *channel)
315 struct cx25821_buffer *buf, *prev;
316 struct list_head *item;
318 if (!list_empty(&q->active)) {
320 list_entry(q->active.next, struct cx25821_buffer, vb.queue);
322 cx25821_start_video_dma(dev, q, buf, channel);
324 list_for_each(item, &q->active) {
325 buf = list_entry(item, struct cx25821_buffer, vb.queue);
326 buf->count = q->count++;
329 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
335 if (list_empty(&q->queued))
339 list_entry(q->queued.next, struct cx25821_buffer, vb.queue);
342 list_move_tail(&buf->vb.queue, &q->active);
343 cx25821_start_video_dma(dev, q, buf, channel);
344 buf->vb.state = VIDEOBUF_ACTIVE;
345 buf->count = q->count++;
346 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
347 } else if (prev->vb.width == buf->vb.width &&
348 prev->vb.height == buf->vb.height &&
349 prev->fmt == buf->fmt) {
350 list_move_tail(&buf->vb.queue, &q->active);
351 buf->vb.state = VIDEOBUF_ACTIVE;
352 buf->count = q->count++;
353 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
354 prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
362 void cx25821_vid_timeout(unsigned long data)
364 struct cx25821_data *timeout_data = (struct cx25821_data *)data;
365 struct cx25821_dev *dev = timeout_data->dev;
366 struct sram_channel *channel = timeout_data->channel;
367 struct cx25821_dmaqueue *q = &dev->channels[channel->i].vidq;
368 struct cx25821_buffer *buf;
371 /* cx25821_sram_channel_dump(dev, channel); */
372 cx_clear(channel->dma_ctl, 0x11);
374 spin_lock_irqsave(&dev->slock, flags);
375 while (!list_empty(&q->active)) {
377 list_entry(q->active.next, struct cx25821_buffer, vb.queue);
378 list_del(&buf->vb.queue);
380 buf->vb.state = VIDEOBUF_ERROR;
381 wake_up(&buf->vb.done);
384 cx25821_restart_video_queue(dev, q, channel);
385 spin_unlock_irqrestore(&dev->slock, flags);
388 int cx25821_video_irq(struct cx25821_dev *dev, int chan_num, u32 status)
393 struct sram_channel *channel = dev->channels[chan_num].sram_channels;
395 mask = cx_read(channel->int_msk);
396 if (0 == (status & mask))
399 cx_write(channel->int_stat, status);
401 /* risc op code error */
402 if (status & (1 << 16)) {
403 printk(KERN_WARNING "%s, %s: video risc op code error\n",
404 dev->name, channel->name);
405 cx_clear(channel->dma_ctl, 0x11);
406 cx25821_sram_channel_dump(dev, channel);
410 if (status & FLD_VID_DST_RISC1) {
411 spin_lock(&dev->slock);
412 count = cx_read(channel->gpcnt);
413 cx25821_video_wakeup(dev,
414 &dev->channels[channel->i].vidq, count);
415 spin_unlock(&dev->slock);
421 dprintk(2, "stopper video\n");
422 spin_lock(&dev->slock);
423 cx25821_restart_video_queue(dev,
424 &dev->channels[channel->i].vidq,
426 spin_unlock(&dev->slock);
432 void cx25821_videoioctl_unregister(struct cx25821_dev *dev)
434 if (dev->ioctl_dev) {
435 if (video_is_registered(dev->ioctl_dev))
436 video_unregister_device(dev->ioctl_dev);
438 video_device_release(dev->ioctl_dev);
440 dev->ioctl_dev = NULL;
444 void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num)
446 cx_clear(PCI_INT_MSK, 1);
448 if (dev->channels[chan_num].video_dev) {
449 if (video_is_registered(dev->channels[chan_num].video_dev))
450 video_unregister_device(
451 dev->channels[chan_num].video_dev);
453 video_device_release(
454 dev->channels[chan_num].video_dev);
456 dev->channels[chan_num].video_dev = NULL;
458 btcx_riscmem_free(dev->pci,
459 &dev->channels[chan_num].vidq.stopper);
461 printk(KERN_WARNING "device %d released!\n", chan_num);
466 int cx25821_video_register(struct cx25821_dev *dev)
471 struct video_device cx25821_video_device = {
472 .name = "cx25821-video",
475 .ioctl_ops = &video_ioctl_ops,
476 .tvnorms = CX25821_NORMS,
477 .current_norm = V4L2_STD_NTSC_M,
480 spin_lock_init(&dev->slock);
482 for (i = 0; i < MAX_VID_CHANNEL_NUM - 1; ++i) {
483 cx25821_init_controls(dev, i);
485 cx25821_risc_stopper(dev->pci,
486 &dev->channels[i].vidq.stopper,
487 dev->channels[i].sram_channels->dma_ctl,
490 dev->channels[i].sram_channels = &cx25821_sram_channels[i];
491 dev->channels[i].video_dev = NULL;
492 dev->channels[i].resources = 0;
494 cx_write(dev->channels[i].sram_channels->int_stat,
497 INIT_LIST_HEAD(&dev->channels[i].vidq.active);
498 INIT_LIST_HEAD(&dev->channels[i].vidq.queued);
500 dev->channels[i].timeout_data.dev = dev;
501 dev->channels[i].timeout_data.channel =
502 &cx25821_sram_channels[i];
503 dev->channels[i].vidq.timeout.function =
505 dev->channels[i].vidq.timeout.data =
506 (unsigned long)&dev->channels[i].timeout_data;
507 init_timer(&dev->channels[i].vidq.timeout);
509 /* register v4l devices */
510 dev->channels[i].video_dev = cx25821_vdev_init(dev,
511 dev->pci, &cx25821_video_device, "video");
513 err = video_register_device(dev->channels[i].video_dev,
514 VFL_TYPE_GRABBER, video_nr[dev->nr]);
521 /* set PCI interrupt */
522 cx_set(PCI_INT_MSK, 0xff);
524 /* initial device configuration */
525 mutex_lock(&dev->lock);
527 dev->tvnorm = cx25821_video_device.current_norm;
528 cx25821_set_tvnorm(dev, dev->tvnorm);
530 mutex_unlock(&dev->lock);
536 cx25821_video_unregister(dev, i);
540 int cx25821_buffer_setup(struct videobuf_queue *q, unsigned int *count,
543 struct cx25821_fh *fh = q->priv_data;
545 *size = fh->fmt->depth * fh->width * fh->height >> 3;
550 if (*size * *count > vid_limit * 1024 * 1024)
551 *count = (vid_limit * 1024 * 1024) / *size;
556 int cx25821_buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
557 enum v4l2_field field)
559 struct cx25821_fh *fh = q->priv_data;
560 struct cx25821_dev *dev = fh->dev;
561 struct cx25821_buffer *buf =
562 container_of(vb, struct cx25821_buffer, vb);
563 int rc, init_buffer = 0;
564 u32 line0_offset, line1_offset;
565 struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
566 int bpl_local = LINE_SIZE_D1;
567 int channel_opened = fh->channel_id;
569 BUG_ON(NULL == fh->fmt);
570 if (fh->width < 48 || fh->width > 720 ||
571 fh->height < 32 || fh->height > 576)
574 buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
576 if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
579 if (buf->fmt != fh->fmt ||
580 buf->vb.width != fh->width ||
581 buf->vb.height != fh->height || buf->vb.field != field) {
583 buf->vb.width = fh->width;
584 buf->vb.height = fh->height;
585 buf->vb.field = field;
589 if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
591 rc = videobuf_iolock(q, &buf->vb, NULL);
593 printk(KERN_DEBUG "videobuf_iolock failed!\n");
598 dprintk(1, "init_buffer=%d\n", init_buffer);
602 channel_opened = dev->channel_opened;
603 channel_opened = (channel_opened < 0
604 || channel_opened > 7) ? 7 : channel_opened;
606 if (dev->channels[channel_opened]
607 .pixel_formats == PIXEL_FRMT_411)
608 buf->bpl = (buf->fmt->depth * buf->vb.width) >> 3;
610 buf->bpl = (buf->fmt->depth >> 3) * (buf->vb.width);
612 if (dev->channels[channel_opened]
613 .pixel_formats == PIXEL_FRMT_411) {
614 bpl_local = buf->bpl;
616 bpl_local = buf->bpl; /* Default */
618 if (channel_opened >= 0 && channel_opened <= 7) {
619 if (dev->channels[channel_opened]
620 .use_cif_resolution) {
621 if (dev->tvnorm & V4L2_STD_PAL_BG
622 || dev->tvnorm & V4L2_STD_PAL_DK)
623 bpl_local = 352 << 1;
626 dev->channels[channel_opened].
633 switch (buf->vb.field) {
635 cx25821_risc_buffer(dev->pci, &buf->risc,
636 dma->sglist, 0, UNSET,
637 buf->bpl, 0, buf->vb.height);
639 case V4L2_FIELD_BOTTOM:
640 cx25821_risc_buffer(dev->pci, &buf->risc,
641 dma->sglist, UNSET, 0,
642 buf->bpl, 0, buf->vb.height);
644 case V4L2_FIELD_INTERLACED:
645 /* All other formats are top field first */
647 line1_offset = buf->bpl;
648 dprintk(1, "top field first\n");
650 cx25821_risc_buffer(dev->pci, &buf->risc,
651 dma->sglist, line0_offset,
652 bpl_local, bpl_local, bpl_local,
653 buf->vb.height >> 1);
655 case V4L2_FIELD_SEQ_TB:
656 cx25821_risc_buffer(dev->pci, &buf->risc,
658 0, buf->bpl * (buf->vb.height >> 1),
659 buf->bpl, 0, buf->vb.height >> 1);
661 case V4L2_FIELD_SEQ_BT:
662 cx25821_risc_buffer(dev->pci, &buf->risc,
664 buf->bpl * (buf->vb.height >> 1), 0,
665 buf->bpl, 0, buf->vb.height >> 1);
672 dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
673 buf, buf->vb.i, fh->width, fh->height, fh->fmt->depth,
674 fh->fmt->name, (unsigned long)buf->risc.dma);
676 buf->vb.state = VIDEOBUF_PREPARED;
681 cx25821_free_buffer(q, buf);
685 void cx25821_buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
687 struct cx25821_buffer *buf =
688 container_of(vb, struct cx25821_buffer, vb);
690 cx25821_free_buffer(q, buf);
693 struct videobuf_queue *get_queue(struct cx25821_fh *fh)
696 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
704 int cx25821_get_resource(struct cx25821_fh *fh, int resource)
707 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
715 int cx25821_video_mmap(struct file *file, struct vm_area_struct *vma)
717 struct cx25821_fh *fh = file->private_data;
719 return videobuf_mmap_mapper(get_queue(fh), vma);
723 static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
725 struct cx25821_buffer *buf =
726 container_of(vb, struct cx25821_buffer, vb);
727 struct cx25821_buffer *prev;
728 struct cx25821_fh *fh = vq->priv_data;
729 struct cx25821_dev *dev = fh->dev;
730 struct cx25821_dmaqueue *q = &dev->channels[fh->channel_id].vidq;
732 /* add jump to stopper */
733 buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
734 buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
735 buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
737 dprintk(2, "jmp to stopper (0x%x)\n", buf->risc.jmp[1]);
739 if (!list_empty(&q->queued)) {
740 list_add_tail(&buf->vb.queue, &q->queued);
741 buf->vb.state = VIDEOBUF_QUEUED;
742 dprintk(2, "[%p/%d] buffer_queue - append to queued\n", buf,
745 } else if (list_empty(&q->active)) {
746 list_add_tail(&buf->vb.queue, &q->active);
747 cx25821_start_video_dma(dev, q, buf,
748 dev->channels[fh->channel_id].
750 buf->vb.state = VIDEOBUF_ACTIVE;
751 buf->count = q->count++;
752 mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
754 "[%p/%d] buffer_queue - first active, buf cnt = %d, \
756 buf, buf->vb.i, buf->count, q->count);
759 list_entry(q->active.prev, struct cx25821_buffer, vb.queue);
760 if (prev->vb.width == buf->vb.width
761 && prev->vb.height == buf->vb.height
762 && prev->fmt == buf->fmt) {
763 list_add_tail(&buf->vb.queue, &q->active);
764 buf->vb.state = VIDEOBUF_ACTIVE;
765 buf->count = q->count++;
766 prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
768 /* 64 bit bits 63-32 */
769 prev->risc.jmp[2] = cpu_to_le32(0);
771 "[%p/%d] buffer_queue - append to active, \
773 buf, buf->vb.i, buf->count);
776 list_add_tail(&buf->vb.queue, &q->queued);
777 buf->vb.state = VIDEOBUF_QUEUED;
778 dprintk(2, "[%p/%d] buffer_queue - first queued\n", buf,
783 if (list_empty(&q->active))
784 dprintk(2, "active queue empty!\n");
787 static struct videobuf_queue_ops cx25821_video_qops = {
788 .buf_setup = cx25821_buffer_setup,
789 .buf_prepare = cx25821_buffer_prepare,
790 .buf_queue = buffer_queue,
791 .buf_release = cx25821_buffer_release,
794 static int video_open(struct file *file)
796 struct video_device *vdev = video_devdata(file);
797 struct cx25821_dev *h, *dev = video_drvdata(file);
798 struct cx25821_fh *fh;
799 struct list_head *list;
800 int minor = video_devdata(file)->minor;
801 enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
806 dprintk(1, "open dev=%s type=%s\n",
807 video_device_node_name(vdev),
808 v4l2_type_names[type]);
810 /* allocate + initialize per filehandle data */
811 fh = kzalloc(sizeof(*fh), GFP_KERNEL);
817 list_for_each(list, &cx25821_devlist)
819 h = list_entry(list, struct cx25821_dev, devlist);
821 for (i = 0; i < MAX_VID_CHANNEL_NUM; i++) {
822 if (h->channels[i].video_dev &&
823 h->channels[i].video_dev->minor == minor) {
826 type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
836 file->private_data = fh;
840 fh->channel_id = ch_id;
842 if (dev->tvnorm & V4L2_STD_PAL_BG || dev->tvnorm & V4L2_STD_PAL_DK)
847 dev->channel_opened = fh->channel_id;
849 (dev->channels[ch_id].pixel_formats ==
850 PIXEL_FRMT_411) ? V4L2_PIX_FMT_Y41P : V4L2_PIX_FMT_YUYV;
851 fh->fmt = format_by_fourcc(pix_format);
853 v4l2_prio_open(&dev->channels[ch_id].prio, &fh->prio);
855 videobuf_queue_sg_init(&fh->vidq, &cx25821_video_qops,
856 &dev->pci->dev, &dev->slock,
857 V4L2_BUF_TYPE_VIDEO_CAPTURE,
858 V4L2_FIELD_INTERLACED,
859 sizeof(struct cx25821_buffer), fh);
861 dprintk(1, "post videobuf_queue_init()\n");
867 static ssize_t video_read(struct file *file, char __user * data, size_t count,
870 struct cx25821_fh *fh = file->private_data;
873 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
874 if (cx25821_res_locked(fh, RESOURCE_VIDEO0))
877 return videobuf_read_one(&fh->vidq, data, count, ppos,
878 file->f_flags & O_NONBLOCK);
886 static unsigned int video_poll(struct file *file,
887 struct poll_table_struct *wait)
889 struct cx25821_fh *fh = file->private_data;
890 struct cx25821_buffer *buf;
892 if (cx25821_res_check(fh, RESOURCE_VIDEO0)) {
893 /* streaming capture */
894 if (list_empty(&fh->vidq.stream))
896 buf = list_entry(fh->vidq.stream.next,
897 struct cx25821_buffer, vb.stream);
900 buf = (struct cx25821_buffer *)fh->vidq.read_buf;
905 poll_wait(file, &buf->vb.done, wait);
906 if (buf->vb.state == VIDEOBUF_DONE || buf->vb.state == VIDEOBUF_ERROR) {
907 if (buf->vb.state == VIDEOBUF_DONE) {
908 struct cx25821_dev *dev = fh->dev;
910 if (dev && dev->channels[fh->channel_id]
911 .use_cif_resolution) {
912 u8 cam_id = *((char *)buf->vb.baddr + 3);
913 memcpy((char *)buf->vb.baddr,
914 (char *)buf->vb.baddr + (fh->width * 2),
916 *((char *)buf->vb.baddr + 3) = cam_id;
920 return POLLIN | POLLRDNORM;
926 static int video_release(struct file *file)
928 struct cx25821_fh *fh = file->private_data;
929 struct cx25821_dev *dev = fh->dev;
931 /* stop the risc engine and fifo */
932 cx_write(channel0->dma_ctl, 0); /* FIFO and RISC disable */
934 /* stop video capture */
935 if (cx25821_res_check(fh, RESOURCE_VIDEO0)) {
936 videobuf_queue_cancel(&fh->vidq);
937 cx25821_res_free(dev, fh, RESOURCE_VIDEO0);
940 if (fh->vidq.read_buf) {
941 cx25821_buffer_release(&fh->vidq, fh->vidq.read_buf);
942 kfree(fh->vidq.read_buf);
945 videobuf_mmap_free(&fh->vidq);
947 v4l2_prio_close(&dev->channels[fh->channel_id].prio, fh->prio);
948 file->private_data = NULL;
954 static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
956 struct cx25821_fh *fh = priv;
957 struct cx25821_dev *dev = fh->dev;
959 if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
962 if (unlikely(i != fh->type))
965 if (unlikely(!cx25821_res_get(dev, fh,
966 cx25821_get_resource(fh, RESOURCE_VIDEO0))))
969 return videobuf_streamon(get_queue(fh));
972 static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
974 struct cx25821_fh *fh = priv;
975 struct cx25821_dev *dev = fh->dev;
978 if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
983 res = cx25821_get_resource(fh, RESOURCE_VIDEO0);
984 err = videobuf_streamoff(get_queue(fh));
987 cx25821_res_free(dev, fh, res);
991 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
992 struct v4l2_format *f)
994 struct cx25821_fh *fh = priv;
995 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
997 int pix_format = PIXEL_FRMT_422;
1000 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1006 dprintk(2, "%s()\n", __func__);
1007 err = cx25821_vidioc_try_fmt_vid_cap(file, priv, f);
1012 fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1013 fh->vidq.field = f->fmt.pix.field;
1015 /* check if width and height is valid based on set standard */
1016 if (cx25821_is_valid_width(f->fmt.pix.width, dev->tvnorm))
1017 fh->width = f->fmt.pix.width;
1019 if (cx25821_is_valid_height(f->fmt.pix.height, dev->tvnorm))
1020 fh->height = f->fmt.pix.height;
1022 if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_Y41P)
1023 pix_format = PIXEL_FRMT_411;
1024 else if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV)
1025 pix_format = PIXEL_FRMT_422;
1029 cx25821_set_pixel_format(dev, SRAM_CH00, pix_format);
1031 /* check if cif resolution */
1032 if (fh->width == 320 || fh->width == 352)
1033 dev->channels[fh->channel_id].use_cif_resolution = 1;
1035 dev->channels[fh->channel_id].use_cif_resolution = 0;
1037 dev->channels[fh->channel_id].cif_width = fh->width;
1038 medusa_set_resolution(dev, fh->width, SRAM_CH00);
1040 dprintk(2, "%s() width=%d height=%d field=%d\n", __func__, fh->width,
1041 fh->height, fh->vidq.field);
1042 cx25821_call_all(dev, video, s_fmt, f);
1047 static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1050 struct cx25821_fh *fh = priv;
1051 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1053 ret_val = videobuf_dqbuf(get_queue(fh), p, file->f_flags & O_NONBLOCK);
1055 p->sequence = dev->channels[fh->channel_id].vidq.count;
1060 static int vidioc_log_status(struct file *file, void *priv)
1062 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1063 struct cx25821_fh *fh = priv;
1066 struct sram_channel *sram_ch = dev->channels[fh->channel_id]
1070 snprintf(name, sizeof(name), "%s/2", dev->name);
1071 printk(KERN_INFO "%s/2: ============ START LOG STATUS ============\n",
1073 cx25821_call_all(dev, core, log_status);
1074 tmp = cx_read(sram_ch->dma_ctl);
1075 printk(KERN_INFO "Video input 0 is %s\n",
1076 (tmp & 0x11) ? "streaming" : "stopped");
1077 printk(KERN_INFO "%s/2: ============= END LOG STATUS =============\n",
1082 static int vidioc_s_ctrl(struct file *file, void *priv,
1083 struct v4l2_control *ctl)
1085 struct cx25821_fh *fh = priv;
1086 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1090 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1096 return cx25821_set_control(dev, ctl, fh->channel_id);
1100 int cx25821_vidioc_g_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f)
1102 struct cx25821_fh *fh = priv;
1104 f->fmt.pix.width = fh->width;
1105 f->fmt.pix.height = fh->height;
1106 f->fmt.pix.field = fh->vidq.field;
1107 f->fmt.pix.pixelformat = fh->fmt->fourcc;
1108 f->fmt.pix.bytesperline = (f->fmt.pix.width * fh->fmt->depth) >> 3;
1109 f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
1114 int cx25821_vidioc_try_fmt_vid_cap(struct file *file, void *priv, struct v4l2_format *f)
1116 struct cx25821_fmt *fmt;
1117 enum v4l2_field field;
1118 unsigned int maxw, maxh;
1120 fmt = 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, struct v4l2_capability *cap)
1162 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1164 strcpy(cap->driver, "cx25821");
1165 strlcpy(cap->card, cx25821_boards[dev->board].name, sizeof(cap->card));
1166 sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
1167 cap->version = CX25821_VERSION_CODE;
1169 V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
1170 if (UNSET != dev->tuner_type)
1171 cap->capabilities |= V4L2_CAP_TUNER;
1175 int cx25821_vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
1176 struct v4l2_fmtdesc *f)
1178 if (unlikely(f->index >= ARRAY_SIZE(formats)))
1181 strlcpy(f->description, formats[f->index].name, sizeof(f->description));
1182 f->pixelformat = formats[f->index].fourcc;
1187 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1188 int cx25821_vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
1190 struct cx25821_fh *fh = priv;
1191 struct videobuf_queue *q;
1192 struct v4l2_requestbuffers req;
1197 memset(&req, 0, sizeof(req));
1200 req.memory = V4L2_MEMORY_MMAP;
1201 err = videobuf_reqbufs(q, &req);
1205 mbuf->frames = req.count;
1207 for (i = 0; i < mbuf->frames; i++) {
1208 mbuf->offsets[i] = q->bufs[i]->boff;
1209 mbuf->size += q->bufs[i]->bsize;
1215 int cx25821_vidioc_reqbufs(struct file *file, void *priv, struct v4l2_requestbuffers *p)
1217 struct cx25821_fh *fh = priv;
1218 return videobuf_reqbufs(get_queue(fh), p);
1221 int cx25821_vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *p)
1223 struct cx25821_fh *fh = priv;
1224 return videobuf_querybuf(get_queue(fh), p);
1227 int cx25821_vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
1229 struct cx25821_fh *fh = priv;
1230 return videobuf_qbuf(get_queue(fh), p);
1233 int cx25821_vidioc_g_priority(struct file *file, void *f, enum v4l2_priority *p)
1235 struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev;
1236 struct cx25821_fh *fh = f;
1238 *p = v4l2_prio_max(&dev->channels[fh->channel_id].prio);
1243 int cx25821_vidioc_s_priority(struct file *file, void *f, enum v4l2_priority prio)
1245 struct cx25821_fh *fh = f;
1246 struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev;
1248 return v4l2_prio_change(&dev->channels[fh->channel_id]
1249 .prio, &fh->prio, prio);
1253 int cx25821_vidioc_s_std(struct file *file, void *priv, v4l2_std_id * tvnorms)
1255 struct cx25821_fh *fh = priv;
1256 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1259 dprintk(1, "%s()\n", __func__);
1262 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1268 if (dev->tvnorm == *tvnorms) {
1272 mutex_lock(&dev->lock);
1273 cx25821_set_tvnorm(dev, *tvnorms);
1274 mutex_unlock(&dev->lock);
1276 medusa_set_videostandard(dev);
1282 int cx25821_enum_input(struct cx25821_dev *dev, struct v4l2_input *i)
1284 static const char *iname[] = {
1285 [CX25821_VMUX_COMPOSITE] = "Composite",
1286 [CX25821_VMUX_SVIDEO] = "S-Video",
1287 [CX25821_VMUX_DEBUG] = "for debug only",
1290 dprintk(1, "%s()\n", __func__);
1296 if (0 == INPUT(n)->type)
1299 memset(i, 0, sizeof(*i));
1301 i->type = V4L2_INPUT_TYPE_CAMERA;
1302 strcpy(i->name, iname[INPUT(n)->type]);
1304 i->std = CX25821_NORMS;
1308 int cx25821_vidioc_enum_input(struct file *file, void *priv, struct v4l2_input *i)
1310 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1311 dprintk(1, "%s()\n", __func__);
1312 return cx25821_enum_input(dev, i);
1315 int cx25821_vidioc_g_input(struct file *file, void *priv, unsigned int *i)
1317 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1320 dprintk(1, "%s() returns %d\n", __func__, *i);
1324 int cx25821_vidioc_s_input(struct file *file, void *priv, unsigned int i)
1326 struct cx25821_fh *fh = priv;
1327 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1330 dprintk(1, "%s(%d)\n", __func__, i);
1333 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1340 dprintk(1, "%s() -EINVAL\n", __func__);
1344 mutex_lock(&dev->lock);
1345 cx25821_video_mux(dev, i);
1346 mutex_unlock(&dev->lock);
1351 int cx25821_vidioc_g_frequency(struct file *file, void *priv, struct v4l2_frequency *f)
1353 struct cx25821_fh *fh = priv;
1354 struct cx25821_dev *dev = fh->dev;
1356 f->frequency = dev->freq;
1358 cx25821_call_all(dev, tuner, g_frequency, f);
1363 int cx25821_set_freq(struct cx25821_dev *dev, struct v4l2_frequency *f)
1365 mutex_lock(&dev->lock);
1366 dev->freq = f->frequency;
1368 cx25821_call_all(dev, tuner, s_frequency, f);
1370 /* When changing channels it is required to reset TVAUDIO */
1373 mutex_unlock(&dev->lock);
1378 int cx25821_vidioc_s_frequency(struct file *file, void *priv, struct v4l2_frequency *f)
1380 struct cx25821_fh *fh = priv;
1381 struct cx25821_dev *dev;
1386 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1391 printk(KERN_ERR "Invalid fh pointer!\n");
1395 return cx25821_set_freq(dev, f);
1399 #ifdef CONFIG_VIDEO_ADV_DEBUG
1400 int cx25821_vidioc_g_register(struct file *file, void *fh,
1401 struct v4l2_dbg_register *reg)
1403 struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev;
1405 if (!v4l2_chip_match_host(®->match))
1408 cx25821_call_all(dev, core, g_register, reg);
1413 int cx25821_vidioc_s_register(struct file *file, void *fh,
1414 struct v4l2_dbg_register *reg)
1416 struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev;
1418 if (!v4l2_chip_match_host(®->match))
1421 cx25821_call_all(dev, core, s_register, reg);
1429 int cx25821_vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1431 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1433 if (unlikely(UNSET == dev->tuner_type))
1438 strcpy(t->name, "Television");
1439 t->type = V4L2_TUNER_ANALOG_TV;
1440 t->capability = V4L2_TUNER_CAP_NORM;
1441 t->rangehigh = 0xffffffffUL;
1443 t->signal = 0xffff; /* LOCKED */
1447 int cx25821_vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
1449 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1450 struct cx25821_fh *fh = priv;
1454 err = v4l2_prio_check(&dev->channels[fh->channel_id]
1460 dprintk(1, "%s()\n", __func__);
1461 if (UNSET == dev->tuner_type)
1470 /*****************************************************************************/
1471 static const struct v4l2_queryctrl no_ctl = {
1473 .flags = V4L2_CTRL_FLAG_DISABLED,
1476 static struct v4l2_queryctrl cx25821_ctls[] = {
1479 .id = V4L2_CID_BRIGHTNESS,
1480 .name = "Brightness",
1484 .default_value = 6200,
1485 .type = V4L2_CTRL_TYPE_INTEGER,
1487 .id = V4L2_CID_CONTRAST,
1492 .default_value = 5000,
1493 .type = V4L2_CTRL_TYPE_INTEGER,
1495 .id = V4L2_CID_SATURATION,
1496 .name = "Saturation",
1500 .default_value = 5000,
1501 .type = V4L2_CTRL_TYPE_INTEGER,
1508 .default_value = 5000,
1509 .type = V4L2_CTRL_TYPE_INTEGER,
1512 static const int CX25821_CTLS = ARRAY_SIZE(cx25821_ctls);
1514 static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl)
1518 if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1)
1520 for (i = 0; i < CX25821_CTLS; i++)
1521 if (cx25821_ctls[i].id == qctrl->id)
1523 if (i == CX25821_CTLS) {
1527 *qctrl = cx25821_ctls[i];
1531 int cx25821_vidioc_queryctrl(struct file *file, void *priv,
1532 struct v4l2_queryctrl *qctrl)
1534 return cx25821_ctrl_query(qctrl);
1537 /* ------------------------------------------------------------------ */
1538 /* VIDEO CTRL IOCTLS */
1540 static const struct v4l2_queryctrl *ctrl_by_id(unsigned int id)
1544 for (i = 0; i < CX25821_CTLS; i++)
1545 if (cx25821_ctls[i].id == id)
1546 return cx25821_ctls + i;
1550 int cx25821_vidioc_g_ctrl(struct file *file, void *priv, struct v4l2_control *ctl)
1552 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1553 struct cx25821_fh *fh = priv;
1555 const struct v4l2_queryctrl *ctrl;
1557 ctrl = ctrl_by_id(ctl->id);
1562 case V4L2_CID_BRIGHTNESS:
1563 ctl->value = dev->channels[fh->channel_id].ctl_bright;
1566 ctl->value = dev->channels[fh->channel_id].ctl_hue;
1568 case V4L2_CID_CONTRAST:
1569 ctl->value = dev->channels[fh->channel_id].ctl_contrast;
1571 case V4L2_CID_SATURATION:
1572 ctl->value = dev->channels[fh->channel_id].ctl_saturation;
1578 int cx25821_set_control(struct cx25821_dev *dev,
1579 struct v4l2_control *ctl, int chan_num)
1582 const struct v4l2_queryctrl *ctrl;
1586 ctrl = ctrl_by_id(ctl->id);
1591 switch (ctrl->type) {
1592 case V4L2_CTRL_TYPE_BOOLEAN:
1593 case V4L2_CTRL_TYPE_MENU:
1594 case V4L2_CTRL_TYPE_INTEGER:
1595 if (ctl->value < ctrl->minimum)
1596 ctl->value = ctrl->minimum;
1597 if (ctl->value > ctrl->maximum)
1598 ctl->value = ctrl->maximum;
1605 case V4L2_CID_BRIGHTNESS:
1606 dev->channels[chan_num].ctl_bright = ctl->value;
1607 medusa_set_brightness(dev, ctl->value, chan_num);
1610 dev->channels[chan_num].ctl_hue = ctl->value;
1611 medusa_set_hue(dev, ctl->value, chan_num);
1613 case V4L2_CID_CONTRAST:
1614 dev->channels[chan_num].ctl_contrast = ctl->value;
1615 medusa_set_contrast(dev, ctl->value, chan_num);
1617 case V4L2_CID_SATURATION:
1618 dev->channels[chan_num].ctl_saturation = ctl->value;
1619 medusa_set_saturation(dev, ctl->value, chan_num);
1628 static void cx25821_init_controls(struct cx25821_dev *dev, int chan_num)
1630 struct v4l2_control ctrl;
1632 for (i = 0; i < CX25821_CTLS; i++) {
1633 ctrl.id = cx25821_ctls[i].id;
1634 ctrl.value = cx25821_ctls[i].default_value;
1636 cx25821_set_control(dev, &ctrl, chan_num);
1640 int cx25821_vidioc_cropcap(struct file *file, void *priv, struct v4l2_cropcap *cropcap)
1642 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1644 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
1646 cropcap->bounds.top = cropcap->bounds.left = 0;
1647 cropcap->bounds.width = 720;
1648 cropcap->bounds.height = dev->tvnorm == V4L2_STD_PAL_BG ? 576 : 480;
1649 cropcap->pixelaspect.numerator =
1650 dev->tvnorm == V4L2_STD_PAL_BG ? 59 : 10;
1651 cropcap->pixelaspect.denominator =
1652 dev->tvnorm == V4L2_STD_PAL_BG ? 54 : 11;
1653 cropcap->defrect = cropcap->bounds;
1657 int cx25821_vidioc_s_crop(struct file *file, void *priv, struct v4l2_crop *crop)
1659 struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
1660 struct cx25821_fh *fh = priv;
1664 err = v4l2_prio_check(&dev->channels[fh->channel_id].
1669 /* cx25821_vidioc_s_crop not supported */
1673 int cx25821_vidioc_g_crop(struct file *file, void *priv, struct v4l2_crop *crop)
1675 /* cx25821_vidioc_g_crop not supported */
1679 int cx25821_vidioc_querystd(struct file *file, void *priv, v4l2_std_id * norm)
1681 /* medusa does not support video standard sensing of current input */
1682 *norm = CX25821_NORMS;
1687 int cx25821_is_valid_width(u32 width, v4l2_std_id tvnorm)
1689 if (tvnorm == V4L2_STD_PAL_BG) {
1690 if (width == 352 || width == 720)
1696 if (tvnorm == V4L2_STD_NTSC_M) {
1697 if (width == 320 || width == 352 || width == 720)
1705 int cx25821_is_valid_height(u32 height, v4l2_std_id tvnorm)
1707 if (tvnorm == V4L2_STD_PAL_BG) {
1708 if (height == 576 || height == 288)
1714 if (tvnorm == V4L2_STD_NTSC_M) {
1715 if (height == 480 || height == 240)
1724 static long video_ioctl_upstream9(struct file *file, unsigned int cmd,
1727 struct cx25821_fh *fh = file->private_data;
1728 struct cx25821_dev *dev = fh->dev;
1730 struct upstream_user_struct *data_from_user;
1732 data_from_user = (struct upstream_user_struct *)arg;
1734 if (!data_from_user) {
1736 ("cx25821 in %s(): Upstream data is INVALID. Returning.\n",
1741 command = data_from_user->command;
1743 if (command != UPSTREAM_START_VIDEO &&
1744 command != UPSTREAM_STOP_VIDEO)
1747 dev->input_filename = data_from_user->input_filename;
1748 dev->input_audiofilename = data_from_user->input_filename;
1749 dev->vid_stdname = data_from_user->vid_stdname;
1750 dev->pixel_format = data_from_user->pixel_format;
1751 dev->channel_select = data_from_user->channel_select;
1752 dev->command = data_from_user->command;
1755 case UPSTREAM_START_VIDEO:
1756 cx25821_start_upstream_video_ch1(dev, data_from_user);
1759 case UPSTREAM_STOP_VIDEO:
1760 cx25821_stop_upstream_video_ch1(dev);
1767 static long video_ioctl_upstream10(struct file *file, unsigned int cmd,
1770 struct cx25821_fh *fh = file->private_data;
1771 struct cx25821_dev *dev = fh->dev;
1773 struct upstream_user_struct *data_from_user;
1775 data_from_user = (struct upstream_user_struct *)arg;
1777 if (!data_from_user) {
1779 ("cx25821 in %s(): Upstream data is INVALID. Returning.\n",
1784 command = data_from_user->command;
1786 if (command != UPSTREAM_START_VIDEO &&
1787 command != UPSTREAM_STOP_VIDEO)
1790 dev->input_filename_ch2 = data_from_user->input_filename;
1791 dev->input_audiofilename = data_from_user->input_filename;
1792 dev->vid_stdname_ch2 = data_from_user->vid_stdname;
1793 dev->pixel_format_ch2 = data_from_user->pixel_format;
1794 dev->channel_select_ch2 = data_from_user->channel_select;
1795 dev->command_ch2 = data_from_user->command;
1798 case UPSTREAM_START_VIDEO:
1799 cx25821_start_upstream_video_ch2(dev, data_from_user);
1802 case UPSTREAM_STOP_VIDEO:
1803 cx25821_stop_upstream_video_ch2(dev);
1810 static long video_ioctl_upstream11(struct file *file, unsigned int cmd,
1813 struct cx25821_fh *fh = file->private_data;
1814 struct cx25821_dev *dev = fh->dev;
1816 struct upstream_user_struct *data_from_user;
1818 data_from_user = (struct upstream_user_struct *)arg;
1820 if (!data_from_user) {
1822 ("cx25821 in %s(): Upstream data is INVALID. Returning.\n",
1827 command = data_from_user->command;
1829 if (command != UPSTREAM_START_AUDIO &&
1830 command != UPSTREAM_STOP_AUDIO)
1833 dev->input_filename = data_from_user->input_filename;
1834 dev->input_audiofilename = data_from_user->input_filename;
1835 dev->vid_stdname = data_from_user->vid_stdname;
1836 dev->pixel_format = data_from_user->pixel_format;
1837 dev->channel_select = data_from_user->channel_select;
1838 dev->command = data_from_user->command;
1841 case UPSTREAM_START_AUDIO:
1842 cx25821_start_upstream_audio(dev, data_from_user);
1845 case UPSTREAM_STOP_AUDIO:
1846 cx25821_stop_upstream_audio(dev);
1853 static long video_ioctl_set(struct file *file, unsigned int cmd,
1856 struct cx25821_fh *fh = file->private_data;
1857 struct cx25821_dev *dev = fh->dev;
1858 struct downstream_user_struct *data_from_user;
1861 int selected_channel = 0, pix_format = 0, i = 0;
1862 int cif_enable = 0, cif_width = 0;
1865 data_from_user = (struct downstream_user_struct *)arg;
1867 if (!data_from_user) {
1869 "cx25821 in %s(): User data is INVALID. Returning.\n",
1874 command = data_from_user->command;
1876 if (command != SET_VIDEO_STD && command != SET_PIXEL_FORMAT
1877 && command != ENABLE_CIF_RESOLUTION && command != REG_READ
1878 && command != REG_WRITE && command != MEDUSA_READ
1879 && command != MEDUSA_WRITE) {
1886 !strcmp(data_from_user->vid_stdname,
1887 "PAL") ? V4L2_STD_PAL_BG : V4L2_STD_NTSC_M;
1888 medusa_set_videostandard(dev);
1891 case SET_PIXEL_FORMAT:
1892 selected_channel = data_from_user->decoder_select;
1893 pix_format = data_from_user->pixel_format;
1895 if (!(selected_channel <= 7 && selected_channel >= 0)) {
1896 selected_channel -= 4;
1897 selected_channel = selected_channel % 8;
1900 if (selected_channel >= 0)
1901 cx25821_set_pixel_format(dev, selected_channel,
1906 case ENABLE_CIF_RESOLUTION:
1907 selected_channel = data_from_user->decoder_select;
1908 cif_enable = data_from_user->cif_resolution_enable;
1909 cif_width = data_from_user->cif_width;
1912 if (dev->tvnorm & V4L2_STD_PAL_BG
1913 || dev->tvnorm & V4L2_STD_PAL_DK)
1916 width = (cif_width == 320
1917 || cif_width == 352) ? cif_width : 320;
1920 if (!(selected_channel <= 7 && selected_channel >= 0)) {
1921 selected_channel -= 4;
1922 selected_channel = selected_channel % 8;
1925 if (selected_channel <= 7 && selected_channel >= 0) {
1926 dev->channels[selected_channel].
1927 use_cif_resolution = cif_enable;
1928 dev->channels[selected_channel].cif_width = width;
1930 for (i = 0; i < VID_CHANNEL_NUM; i++) {
1931 dev->channels[i].use_cif_resolution =
1933 dev->channels[i].cif_width = width;
1937 medusa_set_resolution(dev, width, selected_channel);
1940 data_from_user->reg_data = cx_read(data_from_user->reg_address);
1943 cx_write(data_from_user->reg_address, data_from_user->reg_data);
1947 cx25821_i2c_read(&dev->i2c_bus[0],
1948 (u16) data_from_user->reg_address,
1949 &data_from_user->reg_data);
1952 cx25821_i2c_write(&dev->i2c_bus[0],
1953 (u16) data_from_user->reg_address,
1954 data_from_user->reg_data);
1961 static long cx25821_video_ioctl(struct file *file,
1962 unsigned int cmd, unsigned long arg)
1966 struct cx25821_fh *fh = file->private_data;
1968 /* check to see if it's the video upstream */
1969 if (fh->channel_id == SRAM_CH09) {
1970 ret = video_ioctl_upstream9(file, cmd, arg);
1972 } else if (fh->channel_id == SRAM_CH10) {
1973 ret = video_ioctl_upstream10(file, cmd, arg);
1975 } else if (fh->channel_id == SRAM_CH11) {
1976 ret = video_ioctl_upstream11(file, cmd, arg);
1977 ret = video_ioctl_set(file, cmd, arg);
1981 return video_ioctl2(file, cmd, arg);
1984 /* exported stuff */
1985 static const struct v4l2_file_operations video_fops = {
1986 .owner = THIS_MODULE,
1988 .release = video_release,
1991 .mmap = cx25821_video_mmap,
1992 .ioctl = cx25821_video_ioctl,
1995 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1996 .vidioc_querycap = cx25821_vidioc_querycap,
1997 .vidioc_enum_fmt_vid_cap = cx25821_vidioc_enum_fmt_vid_cap,
1998 .vidioc_g_fmt_vid_cap = cx25821_vidioc_g_fmt_vid_cap,
1999 .vidioc_try_fmt_vid_cap = cx25821_vidioc_try_fmt_vid_cap,
2000 .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
2001 .vidioc_reqbufs = cx25821_vidioc_reqbufs,
2002 .vidioc_querybuf = cx25821_vidioc_querybuf,
2003 .vidioc_qbuf = cx25821_vidioc_qbuf,
2004 .vidioc_dqbuf = vidioc_dqbuf,
2006 .vidioc_s_std = cx25821_vidioc_s_std,
2007 .vidioc_querystd = cx25821_vidioc_querystd,
2009 .vidioc_cropcap = cx25821_vidioc_cropcap,
2010 .vidioc_s_crop = cx25821_vidioc_s_crop,
2011 .vidioc_g_crop = cx25821_vidioc_g_crop,
2012 .vidioc_enum_input = cx25821_vidioc_enum_input,
2013 .vidioc_g_input = cx25821_vidioc_g_input,
2014 .vidioc_s_input = cx25821_vidioc_s_input,
2015 .vidioc_g_ctrl = cx25821_vidioc_g_ctrl,
2016 .vidioc_s_ctrl = vidioc_s_ctrl,
2017 .vidioc_queryctrl = cx25821_vidioc_queryctrl,
2018 .vidioc_streamon = vidioc_streamon,
2019 .vidioc_streamoff = vidioc_streamoff,
2020 .vidioc_log_status = vidioc_log_status,
2021 .vidioc_g_priority = cx25821_vidioc_g_priority,
2022 .vidioc_s_priority = cx25821_vidioc_s_priority,
2023 #ifdef CONFIG_VIDEO_V4L1_COMPAT
2024 .vidiocgmbuf = cx25821_vidiocgmbuf,
2027 .vidioc_g_tuner = cx25821_vidioc_g_tuner,
2028 .vidioc_s_tuner = cx25821_vidioc_s_tuner,
2029 .vidioc_g_frequency = cx25821_vidioc_g_frequency,
2030 .vidioc_s_frequency = cx25821_vidioc_s_frequency,
2032 #ifdef CONFIG_VIDEO_ADV_DEBUG
2033 .vidioc_g_register = cx25821_vidioc_g_register,
2034 .vidioc_s_register = cx25821_vidioc_s_register,
2038 struct video_device cx25821_videoioctl_template = {
2039 .name = "cx25821-videoioctl",
2040 .fops = &video_fops,
2041 .ioctl_ops = &video_ioctl_ops,
2042 .tvnorms = CX25821_NORMS,
2043 .current_norm = V4L2_STD_NTSC_M,