[media] rename most media/video pci drivers to media/pci

Rename all PCI drivers with their own directory under
drivers/media/video into drivers/media/pci and update the
building system.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 1990 insertions, 0 deletions

diff --git a/drivers/media/pci/cx25821/cx25821-video.c b/drivers/media/pci/cx25821/cx25821-video.c
new file mode 100644
index 000000000000..b38d4379cc36
--- /dev/null
+++ b/drivers/media/pci/cx25821/cx25821-video.c
@@ -0,0 +1,1990 @@
+/*
+ *  Driver for the Conexant CX25821 PCIe bridge
+ *
+ *  Copyright (C) 2009 Conexant Systems Inc.
+ *  Authors  <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
+ *  Based on Steven Toth <stoth@linuxtv.org> cx23885 driver
+ *  Parts adapted/taken from Eduardo Moscoso Rubino
+ *  Copyright (C) 2009 Eduardo Moscoso Rubino <moscoso@TopoLogica.com>
+ *
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include "cx25821-video.h"
+
+MODULE_DESCRIPTION("v4l2 driver module for cx25821 based TV cards");
+MODULE_AUTHOR("Hiep Huynh <hiep.huynh@conexant.com>");
+MODULE_LICENSE("GPL");
+
+static unsigned int video_nr[] = {[0 ... (CX25821_MAXBOARDS - 1)] = UNSET };
+static unsigned int radio_nr[] = {[0 ... (CX25821_MAXBOARDS - 1)] = UNSET };
+
+module_param_array(video_nr, int, NULL, 0444);
+module_param_array(radio_nr, int, NULL, 0444);
+
+MODULE_PARM_DESC(video_nr, "video device numbers");
+MODULE_PARM_DESC(radio_nr, "radio device numbers");
+
+static unsigned int video_debug = VIDEO_DEBUG;
+module_param(video_debug, int, 0644);
+MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
+
+static unsigned int irq_debug;
+module_param(irq_debug, int, 0644);
+MODULE_PARM_DESC(irq_debug, "enable debug messages [IRQ handler]");
+
+unsigned int vid_limit = 16;
+module_param(vid_limit, int, 0644);
+MODULE_PARM_DESC(vid_limit, "capture memory limit in megabytes");
+
+static void cx25821_init_controls(struct cx25821_dev *dev, int chan_num);
+
+static const struct v4l2_file_operations video_fops;
+static const struct v4l2_ioctl_ops video_ioctl_ops;
+
+#define FORMAT_FLAGS_PACKED       0x01
+
+struct cx25821_fmt formats[] = {
+	{
+		.name = "8 bpp, gray",
+		.fourcc = V4L2_PIX_FMT_GREY,
+		.depth = 8,
+		.flags = FORMAT_FLAGS_PACKED,
+	 }, {
+		.name = "4:1:1, packed, Y41P",
+		.fourcc = V4L2_PIX_FMT_Y41P,
+		.depth = 12,
+		.flags = FORMAT_FLAGS_PACKED,
+	}, {
+		.name = "4:2:2, packed, YUYV",
+		.fourcc = V4L2_PIX_FMT_YUYV,
+		.depth = 16,
+		.flags = FORMAT_FLAGS_PACKED,
+	}, {
+		.name = "4:2:2, packed, UYVY",
+		.fourcc = V4L2_PIX_FMT_UYVY,
+		.depth = 16,
+		.flags = FORMAT_FLAGS_PACKED,
+	}, {
+		.name = "4:2:0, YUV",
+		.fourcc = V4L2_PIX_FMT_YUV420,
+		.depth = 12,
+		.flags = FORMAT_FLAGS_PACKED,
+	},
+};
+
+int cx25821_get_format_size(void)
+{
+	return ARRAY_SIZE(formats);
+}
+
+struct cx25821_fmt *cx25821_format_by_fourcc(unsigned int fourcc)
+{
+	unsigned int i;
+
+	if (fourcc == V4L2_PIX_FMT_Y41P || fourcc == V4L2_PIX_FMT_YUV411P)
+		return formats + 1;
+
+	for (i = 0; i < ARRAY_SIZE(formats); i++)
+		if (formats[i].fourcc == fourcc)
+			return formats + i;
+
+	pr_err("%s(0x%08x) NOT FOUND\n", __func__, fourcc);
+	return NULL;
+}
+
+void cx25821_video_wakeup(struct cx25821_dev *dev, struct cx25821_dmaqueue *q,
+			  u32 count)
+{
+	struct cx25821_buffer *buf;
+	int bc;
+
+	for (bc = 0;; bc++) {
+		if (list_empty(&q->active)) {
+			dprintk(1, "bc=%d (=0: active empty)\n", bc);
+			break;
+		}
+
+		buf = list_entry(q->active.next, struct cx25821_buffer,
+				vb.queue);
+
+		/* count comes from the hw and it is 16bit wide --
+		 * this trick handles wrap-arounds correctly for
+		 * up to 32767 buffers in flight... */
+		if ((s16) (count - buf->count) < 0)
+			break;
+
+		do_gettimeofday(&buf->vb.ts);
+		buf->vb.state = VIDEOBUF_DONE;
+		list_del(&buf->vb.queue);
+		wake_up(&buf->vb.done);
+	}
+
+	if (list_empty(&q->active))
+		del_timer(&q->timeout);
+	else
+		mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
+	if (bc != 1)
+		pr_err("%s: %d buffers handled (should be 1)\n", __func__, bc);
+}
+
+#ifdef TUNER_FLAG
+int cx25821_set_tvnorm(struct cx25821_dev *dev, v4l2_std_id norm)
+{
+	dprintk(1, "%s(norm = 0x%08x) name: [%s]\n",
+		__func__, (unsigned int)norm, v4l2_norm_to_name(norm));
+
+	dev->tvnorm = norm;
+
+	/* Tell the internal A/V decoder */
+	cx25821_call_all(dev, core, s_std, norm);
+
+	return 0;
+}
+#endif
+
+struct video_device *cx25821_vdev_init(struct cx25821_dev *dev,
+				       struct pci_dev *pci,
+				       struct video_device *template,
+				       char *type)
+{
+	struct video_device *vfd;
+	dprintk(1, "%s()\n", __func__);
+
+	vfd = video_device_alloc();
+	if (NULL == vfd)
+		return NULL;
+	*vfd = *template;
+	vfd->v4l2_dev = &dev->v4l2_dev;
+	vfd->release = video_device_release;
+	snprintf(vfd->name, sizeof(vfd->name), "%s %s (%s)", dev->name, type,
+		 cx25821_boards[dev->board].name);
+	video_set_drvdata(vfd, dev);
+	return vfd;
+}
+
+/*
+static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl)
+{
+	int i;
+
+	if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1)
+		return -EINVAL;
+	for (i = 0; i < CX25821_CTLS; i++)
+		if (cx25821_ctls[i].v.id == qctrl->id)
+			break;
+	if (i == CX25821_CTLS) {
+		*qctrl = no_ctl;
+		return 0;
+	}
+	*qctrl = cx25821_ctls[i].v;
+	return 0;
+}
+*/
+
+/* resource management */
+int cx25821_res_get(struct cx25821_dev *dev, struct cx25821_fh *fh,
+		    unsigned int bit)
+{
+	dprintk(1, "%s()\n", __func__);
+	if (fh->resources & bit)
+		/* have it already allocated */
+		return 1;
+
+	/* is it free? */
+	mutex_lock(&dev->lock);
+	if (dev->channels[fh->channel_id].resources & bit) {
+		/* no, someone else uses it */
+		mutex_unlock(&dev->lock);
+		return 0;
+	}
+	/* it's free, grab it */
+	fh->resources |= bit;
+	dev->channels[fh->channel_id].resources |= bit;
+	dprintk(1, "res: get %d\n", bit);
+	mutex_unlock(&dev->lock);
+	return 1;
+}
+
+int cx25821_res_check(struct cx25821_fh *fh, unsigned int bit)
+{
+	return fh->resources & bit;
+}
+
+int cx25821_res_locked(struct cx25821_fh *fh, unsigned int bit)
+{
+	return fh->dev->channels[fh->channel_id].resources & bit;
+}
+
+void cx25821_res_free(struct cx25821_dev *dev, struct cx25821_fh *fh,
+		      unsigned int bits)
+{
+	BUG_ON((fh->resources & bits) != bits);
+	dprintk(1, "%s()\n", __func__);
+
+	mutex_lock(&dev->lock);
+	fh->resources &= ~bits;
+	dev->channels[fh->channel_id].resources &= ~bits;
+	dprintk(1, "res: put %d\n", bits);
+	mutex_unlock(&dev->lock);
+}
+
+int cx25821_video_mux(struct cx25821_dev *dev, unsigned int input)
+{
+	struct v4l2_routing route;
+	memset(&route, 0, sizeof(route));
+
+	dprintk(1, "%s(): video_mux: %d [vmux=%d, gpio=0x%x,0x%x,0x%x,0x%x]\n",
+		__func__, input, INPUT(input)->vmux, INPUT(input)->gpio0,
+		INPUT(input)->gpio1, INPUT(input)->gpio2, INPUT(input)->gpio3);
+	dev->input = input;
+
+	route.input = INPUT(input)->vmux;
+
+	/* Tell the internal A/V decoder */
+	cx25821_call_all(dev, video, s_routing, INPUT(input)->vmux, 0, 0);
+
+	return 0;
+}
+
+int cx25821_start_video_dma(struct cx25821_dev *dev,
+			    struct cx25821_dmaqueue *q,
+			    struct cx25821_buffer *buf,
+			    struct sram_channel *channel)
+{
+	int tmp = 0;
+
+	/* setup fifo + format */
+	cx25821_sram_channel_setup(dev, channel, buf->bpl, buf->risc.dma);
+
+	/* reset counter */
+	cx_write(channel->gpcnt_ctl, 3);
+	q->count = 1;
+
+	/* enable irq */
+	cx_set(PCI_INT_MSK, cx_read(PCI_INT_MSK) | (1 << channel->i));
+	cx_set(channel->int_msk, 0x11);
+
+	/* start dma */
+	cx_write(channel->dma_ctl, 0x11);	/* FIFO and RISC enable */
+
+	/* make sure upstream setting if any is reversed */
+	tmp = cx_read(VID_CH_MODE_SEL);
+	cx_write(VID_CH_MODE_SEL, tmp & 0xFFFFFE00);
+
+	return 0;
+}
+
+int cx25821_restart_video_queue(struct cx25821_dev *dev,
+				struct cx25821_dmaqueue *q,
+				struct sram_channel *channel)
+{
+	struct cx25821_buffer *buf, *prev;
+	struct list_head *item;
+
+	if (!list_empty(&q->active)) {
+		buf = list_entry(q->active.next, struct cx25821_buffer,
+				vb.queue);
+
+		cx25821_start_video_dma(dev, q, buf, channel);
+
+		list_for_each(item, &q->active) {
+			buf = list_entry(item, struct cx25821_buffer, vb.queue);
+			buf->count = q->count++;
+		}
+
+		mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
+		return 0;
+	}
+
+	prev = NULL;
+	for (;;) {
+		if (list_empty(&q->queued))
+			return 0;
+
+		buf = list_entry(q->queued.next, struct cx25821_buffer,
+				vb.queue);
+
+		if (NULL == prev) {
+			list_move_tail(&buf->vb.queue, &q->active);
+			cx25821_start_video_dma(dev, q, buf, channel);
+			buf->vb.state = VIDEOBUF_ACTIVE;
+			buf->count = q->count++;
+			mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
+		} else if (prev->vb.width == buf->vb.width &&
+			   prev->vb.height == buf->vb.height &&
+			   prev->fmt == buf->fmt) {
+			list_move_tail(&buf->vb.queue, &q->active);
+			buf->vb.state = VIDEOBUF_ACTIVE;
+			buf->count = q->count++;
+			prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
+			prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
+		} else {
+			return 0;
+		}
+		prev = buf;
+	}
+}
+
+void cx25821_vid_timeout(unsigned long data)
+{
+	struct cx25821_data *timeout_data = (struct cx25821_data *)data;
+	struct cx25821_dev *dev = timeout_data->dev;
+	struct sram_channel *channel = timeout_data->channel;
+	struct cx25821_dmaqueue *q = &dev->channels[channel->i].vidq;
+	struct cx25821_buffer *buf;
+	unsigned long flags;
+
+	/* cx25821_sram_channel_dump(dev, channel); */
+	cx_clear(channel->dma_ctl, 0x11);
+
+	spin_lock_irqsave(&dev->slock, flags);
+	while (!list_empty(&q->active)) {
+		buf = list_entry(q->active.next, struct cx25821_buffer,
+				vb.queue);
+		list_del(&buf->vb.queue);
+
+		buf->vb.state = VIDEOBUF_ERROR;
+		wake_up(&buf->vb.done);
+	}
+
+	cx25821_restart_video_queue(dev, q, channel);
+	spin_unlock_irqrestore(&dev->slock, flags);
+}
+
+int cx25821_video_irq(struct cx25821_dev *dev, int chan_num, u32 status)
+{
+	u32 count = 0;
+	int handled = 0;
+	u32 mask;
+	struct sram_channel *channel = dev->channels[chan_num].sram_channels;
+
+	mask = cx_read(channel->int_msk);
+	if (0 == (status & mask))
+		return handled;
+
+	cx_write(channel->int_stat, status);
+
+	/* risc op code error */
+	if (status & (1 << 16)) {
+		pr_warn("%s, %s: video risc op code error\n",
+			dev->name, channel->name);
+		cx_clear(channel->dma_ctl, 0x11);
+		cx25821_sram_channel_dump(dev, channel);
+	}
+
+	/* risc1 y */
+	if (status & FLD_VID_DST_RISC1) {
+		spin_lock(&dev->slock);
+		count = cx_read(channel->gpcnt);
+		cx25821_video_wakeup(dev, &dev->channels[channel->i].vidq,
+				count);
+		spin_unlock(&dev->slock);
+		handled++;
+	}
+
+	/* risc2 y */
+	if (status & 0x10) {
+		dprintk(2, "stopper video\n");
+		spin_lock(&dev->slock);
+		cx25821_restart_video_queue(dev,
+				&dev->channels[channel->i].vidq, channel);
+		spin_unlock(&dev->slock);
+		handled++;
+	}
+	return handled;
+}
+
+void cx25821_videoioctl_unregister(struct cx25821_dev *dev)
+{
+	if (dev->ioctl_dev) {
+		if (video_is_registered(dev->ioctl_dev))
+			video_unregister_device(dev->ioctl_dev);
+		else
+			video_device_release(dev->ioctl_dev);
+
+		dev->ioctl_dev = NULL;
+	}
+}
+
+void cx25821_video_unregister(struct cx25821_dev *dev, int chan_num)
+{
+	cx_clear(PCI_INT_MSK, 1);
+
+	if (dev->channels[chan_num].video_dev) {
+		if (video_is_registered(dev->channels[chan_num].video_dev))
+			video_unregister_device(
+					dev->channels[chan_num].video_dev);
+		else
+			video_device_release(
+					dev->channels[chan_num].video_dev);
+
+		dev->channels[chan_num].video_dev = NULL;
+
+		btcx_riscmem_free(dev->pci,
+				&dev->channels[chan_num].vidq.stopper);
+
+		pr_warn("device %d released!\n", chan_num);
+	}
+
+}
+
+int cx25821_video_register(struct cx25821_dev *dev)
+{
+	int err;
+	int i;
+
+	struct video_device cx25821_video_device = {
+		.name = "cx25821-video",
+		.fops = &video_fops,
+		.minor = -1,
+		.ioctl_ops = &video_ioctl_ops,
+		.tvnorms = CX25821_NORMS,
+		.current_norm = V4L2_STD_NTSC_M,
+	};
+
+	spin_lock_init(&dev->slock);
+
+	for (i = 0; i < MAX_VID_CHANNEL_NUM - 1; ++i) {
+		cx25821_init_controls(dev, i);
+
+		cx25821_risc_stopper(dev->pci, &dev->channels[i].vidq.stopper,
+			dev->channels[i].sram_channels->dma_ctl, 0x11, 0);
+
+		dev->channels[i].sram_channels = &cx25821_sram_channels[i];
+		dev->channels[i].video_dev = NULL;
+		dev->channels[i].resources = 0;
+
+		cx_write(dev->channels[i].sram_channels->int_stat, 0xffffffff);
+
+		INIT_LIST_HEAD(&dev->channels[i].vidq.active);
+		INIT_LIST_HEAD(&dev->channels[i].vidq.queued);
+
+		dev->channels[i].timeout_data.dev = dev;
+		dev->channels[i].timeout_data.channel =
+			&cx25821_sram_channels[i];
+		dev->channels[i].vidq.timeout.function = cx25821_vid_timeout;
+		dev->channels[i].vidq.timeout.data =
+			(unsigned long)&dev->channels[i].timeout_data;
+		init_timer(&dev->channels[i].vidq.timeout);
+
+		/* register v4l devices */
+		dev->channels[i].video_dev = cx25821_vdev_init(dev, dev->pci,
+				&cx25821_video_device, "video");
+
+		err = video_register_device(dev->channels[i].video_dev,
+				VFL_TYPE_GRABBER, video_nr[dev->nr]);
+
+		if (err < 0)
+			goto fail_unreg;
+
+	}
+
+	/* set PCI interrupt */
+	cx_set(PCI_INT_MSK, 0xff);
+
+	/* initial device configuration */
+	mutex_lock(&dev->lock);
+#ifdef TUNER_FLAG
+	dev->tvnorm = cx25821_video_device.current_norm;
+	cx25821_set_tvnorm(dev, dev->tvnorm);
+#endif
+	mutex_unlock(&dev->lock);
+
+	return 0;
+
+fail_unreg:
+	cx25821_video_unregister(dev, i);
+	return err;
+}
+
+int cx25821_buffer_setup(struct videobuf_queue *q, unsigned int *count,
+		 unsigned int *size)
+{
+	struct cx25821_fh *fh = q->priv_data;
+
+	*size = fh->fmt->depth * fh->width * fh->height >> 3;
+
+	if (0 == *count)
+		*count = 32;
+
+	if (*size * *count > vid_limit * 1024 * 1024)
+		*count = (vid_limit * 1024 * 1024) / *size;
+
+	return 0;
+}
+
+int cx25821_buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
+		   enum v4l2_field field)
+{
+	struct cx25821_fh *fh = q->priv_data;
+	struct cx25821_dev *dev = fh->dev;
+	struct cx25821_buffer *buf =
+		container_of(vb, struct cx25821_buffer, vb);
+	int rc, init_buffer = 0;
+	u32 line0_offset;
+	struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
+	int bpl_local = LINE_SIZE_D1;
+	int channel_opened = fh->channel_id;
+
+	BUG_ON(NULL == fh->fmt);
+	if (fh->width < 48 || fh->width > 720 ||
+	    fh->height < 32 || fh->height > 576)
+		return -EINVAL;
+
+	buf->vb.size = (fh->width * fh->height * fh->fmt->depth) >> 3;
+
+	if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
+		return -EINVAL;
+
+	if (buf->fmt != fh->fmt ||
+	    buf->vb.width != fh->width ||
+	    buf->vb.height != fh->height || buf->vb.field != field) {
+		buf->fmt = fh->fmt;
+		buf->vb.width = fh->width;
+		buf->vb.height = fh->height;
+		buf->vb.field = field;
+		init_buffer = 1;
+	}
+
+	if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
+		init_buffer = 1;
+		rc = videobuf_iolock(q, &buf->vb, NULL);
+		if (0 != rc) {
+			printk(KERN_DEBUG pr_fmt("videobuf_iolock failed!\n"));
+			goto fail;
+		}
+	}
+
+	dprintk(1, "init_buffer=%d\n", init_buffer);
+
+	if (init_buffer) {
+
+		channel_opened = dev->channel_opened;
+		if (channel_opened < 0 || channel_opened > 7)
+			channel_opened = 7;
+
+		if (dev->channels[channel_opened].pixel_formats ==
+				PIXEL_FRMT_411)
+			buf->bpl = (buf->fmt->depth * buf->vb.width) >> 3;
+		else
+			buf->bpl = (buf->fmt->depth >> 3) * (buf->vb.width);
+
+		if (dev->channels[channel_opened].pixel_formats ==
+				PIXEL_FRMT_411) {
+			bpl_local = buf->bpl;
+		} else {
+			bpl_local = buf->bpl;   /* Default */
+
+			if (channel_opened >= 0 && channel_opened <= 7) {
+				if (dev->channels[channel_opened]
+						.use_cif_resolution) {
+					if (dev->tvnorm & V4L2_STD_PAL_BG ||
+					    dev->tvnorm & V4L2_STD_PAL_DK)
+						bpl_local = 352 << 1;
+					else
+						bpl_local = dev->channels[
+							channel_opened].
+							cif_width << 1;
+				}
+			}
+		}
+
+		switch (buf->vb.field) {
+		case V4L2_FIELD_TOP:
+			cx25821_risc_buffer(dev->pci, &buf->risc,
+					    dma->sglist, 0, UNSET,
+					    buf->bpl, 0, buf->vb.height);
+			break;
+		case V4L2_FIELD_BOTTOM:
+			cx25821_risc_buffer(dev->pci, &buf->risc,
+					    dma->sglist, UNSET, 0,
+					    buf->bpl, 0, buf->vb.height);
+			break;
+		case V4L2_FIELD_INTERLACED:
+			/* All other formats are top field first */
+			line0_offset = 0;
+			dprintk(1, "top field first\n");
+
+			cx25821_risc_buffer(dev->pci, &buf->risc,
+					    dma->sglist, line0_offset,
+					    bpl_local, bpl_local, bpl_local,
+					    buf->vb.height >> 1);
+			break;
+		case V4L2_FIELD_SEQ_TB:
+			cx25821_risc_buffer(dev->pci, &buf->risc,
+					    dma->sglist,
+					    0, buf->bpl * (buf->vb.height >> 1),
+					    buf->bpl, 0, buf->vb.height >> 1);
+			break;
+		case V4L2_FIELD_SEQ_BT:
+			cx25821_risc_buffer(dev->pci, &buf->risc,
+					    dma->sglist,
+					    buf->bpl * (buf->vb.height >> 1), 0,
+					    buf->bpl, 0, buf->vb.height >> 1);
+			break;
+		default:
+			BUG();
+		}
+	}
+
+	dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
+		buf, buf->vb.i, fh->width, fh->height, fh->fmt->depth,
+		fh->fmt->name, (unsigned long)buf->risc.dma);
+
+	buf->vb.state = VIDEOBUF_PREPARED;
+
+	return 0;
+
+fail:
+	cx25821_free_buffer(q, buf);
+	return rc;
+}
+
+void cx25821_buffer_release(struct videobuf_queue *q,
+			    struct videobuf_buffer *vb)
+{
+	struct cx25821_buffer *buf =
+		container_of(vb, struct cx25821_buffer, vb);
+
+	cx25821_free_buffer(q, buf);
+}
+
+struct videobuf_queue *get_queue(struct cx25821_fh *fh)
+{
+	switch (fh->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+		return &fh->vidq;
+	default:
+		BUG();
+		return NULL;
+	}
+}
+
+int cx25821_get_resource(struct cx25821_fh *fh, int resource)
+{
+	switch (fh->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+		return resource;
+	default:
+		BUG();
+		return 0;
+	}
+}
+
+int cx25821_video_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	struct cx25821_fh *fh = file->private_data;
+
+	return videobuf_mmap_mapper(get_queue(fh), vma);
+}
+
+
+static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
+{
+	struct cx25821_buffer *buf =
+		container_of(vb, struct cx25821_buffer, vb);
+	struct cx25821_buffer *prev;
+	struct cx25821_fh *fh = vq->priv_data;
+	struct cx25821_dev *dev = fh->dev;
+	struct cx25821_dmaqueue *q = &dev->channels[fh->channel_id].vidq;
+
+	/* add jump to stopper */
+	buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
+	buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
+	buf->risc.jmp[2] = cpu_to_le32(0);      /* bits 63-32 */
+
+	dprintk(2, "jmp to stopper (0x%x)\n", buf->risc.jmp[1]);
+
+	if (!list_empty(&q->queued)) {
+		list_add_tail(&buf->vb.queue, &q->queued);
+		buf->vb.state = VIDEOBUF_QUEUED;
+		dprintk(2, "[%p/%d] buffer_queue - append to queued\n", buf,
+				buf->vb.i);
+
+	} else if (list_empty(&q->active)) {
+		list_add_tail(&buf->vb.queue, &q->active);
+		cx25821_start_video_dma(dev, q, buf,
+				dev->channels[fh->channel_id].sram_channels);
+		buf->vb.state = VIDEOBUF_ACTIVE;
+		buf->count = q->count++;
+		mod_timer(&q->timeout, jiffies + BUFFER_TIMEOUT);
+		dprintk(2, "[%p/%d] buffer_queue - first active, buf cnt = %d, q->count = %d\n",
+				buf, buf->vb.i, buf->count, q->count);
+	} else {
+		prev = list_entry(q->active.prev, struct cx25821_buffer,
+				vb.queue);
+		if (prev->vb.width == buf->vb.width
+		   && prev->vb.height == buf->vb.height
+		   && prev->fmt == buf->fmt) {
+			list_add_tail(&buf->vb.queue, &q->active);
+			buf->vb.state = VIDEOBUF_ACTIVE;
+			buf->count = q->count++;
+			prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
+
+			/* 64 bit bits 63-32 */
+			prev->risc.jmp[2] = cpu_to_le32(0);
+			dprintk(2, "[%p/%d] buffer_queue - append to active, buf->count=%d\n",
+					buf, buf->vb.i, buf->count);
+
+		} else {
+			list_add_tail(&buf->vb.queue, &q->queued);
+			buf->vb.state = VIDEOBUF_QUEUED;
+			dprintk(2, "[%p/%d] buffer_queue - first queued\n", buf,
+					buf->vb.i);
+		}
+	}
+
+	if (list_empty(&q->active))
+		dprintk(2, "active queue empty!\n");
+}
+
+static struct videobuf_queue_ops cx25821_video_qops = {
+	.buf_setup = cx25821_buffer_setup,
+	.buf_prepare = cx25821_buffer_prepare,
+	.buf_queue = buffer_queue,
+	.buf_release = cx25821_buffer_release,
+};
+
+static int video_open(struct file *file)
+{
+	struct video_device *vdev = video_devdata(file);
+	struct cx25821_dev *h, *dev = video_drvdata(file);
+	struct cx25821_fh *fh;
+	struct list_head *list;
+	int minor = video_devdata(file)->minor;
+	enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	u32 pix_format;
+	int ch_id = 0;
+	int i;
+
+	dprintk(1, "open dev=%s type=%s\n", video_device_node_name(vdev),
+			v4l2_type_names[type]);
+
+	/* allocate + initialize per filehandle data */
+	fh = kzalloc(sizeof(*fh), GFP_KERNEL);
+	if (NULL == fh)
+		return -ENOMEM;
+
+	mutex_lock(&cx25821_devlist_mutex);
+
+	list_for_each(list, &cx25821_devlist)
+	{
+		h = list_entry(list, struct cx25821_dev, devlist);
+
+		for (i = 0; i < MAX_VID_CHANNEL_NUM; i++) {
+			if (h->channels[i].video_dev &&
+			    h->channels[i].video_dev->minor == minor) {
+				dev = h;
+				ch_id = i;
+				type  = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+			}
+		}
+	}
+
+	if (NULL == dev) {
+		mutex_unlock(&cx25821_devlist_mutex);
+		kfree(fh);
+		return -ENODEV;
+	}
+
+	file->private_data = fh;
+	fh->dev = dev;
+	fh->type = type;
+	fh->width = 720;
+	fh->channel_id = ch_id;
+
+	if (dev->tvnorm & V4L2_STD_PAL_BG || dev->tvnorm & V4L2_STD_PAL_DK)
+		fh->height = 576;
+	else
+		fh->height = 480;
+
+	dev->channel_opened = fh->channel_id;
+	if (dev->channels[ch_id].pixel_formats == PIXEL_FRMT_411)
+		pix_format = V4L2_PIX_FMT_Y41P;
+	else
+		pix_format = V4L2_PIX_FMT_YUYV;
+	fh->fmt = cx25821_format_by_fourcc(pix_format);
+
+	v4l2_prio_open(&dev->channels[ch_id].prio, &fh->prio);
+
+	videobuf_queue_sg_init(&fh->vidq, &cx25821_video_qops, &dev->pci->dev,
+			&dev->slock, V4L2_BUF_TYPE_VIDEO_CAPTURE,
+			V4L2_FIELD_INTERLACED, sizeof(struct cx25821_buffer),
+			fh, NULL);
+
+	dprintk(1, "post videobuf_queue_init()\n");
+	mutex_unlock(&cx25821_devlist_mutex);
+
+	return 0;
+}
+
+static ssize_t video_read(struct file *file, char __user * data, size_t count,
+			 loff_t *ppos)
+{
+	struct cx25821_fh *fh = file->private_data;
+
+	switch (fh->type) {
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+		if (cx25821_res_locked(fh, RESOURCE_VIDEO0))
+			return -EBUSY;
+
+		return videobuf_read_one(&fh->vidq, data, count, ppos,
+					file->f_flags & O_NONBLOCK);
+
+	default:
+		BUG();
+		return 0;
+	}
+}
+
+static unsigned int video_poll(struct file *file,
+			      struct poll_table_struct *wait)
+{
+	struct cx25821_fh *fh = file->private_data;
+	struct cx25821_buffer *buf;
+
+	if (cx25821_res_check(fh, RESOURCE_VIDEO0)) {
+		/* streaming capture */
+		if (list_empty(&fh->vidq.stream))
+			return POLLERR;
+		buf = list_entry(fh->vidq.stream.next,
+				struct cx25821_buffer, vb.stream);
+	} else {
+		/* read() capture */
+		buf = (struct cx25821_buffer *)fh->vidq.read_buf;
+		if (NULL == buf)
+			return POLLERR;
+	}
+
+	poll_wait(file, &buf->vb.done, wait);
+	if (buf->vb.state == VIDEOBUF_DONE || buf->vb.state == VIDEOBUF_ERROR) {
+		if (buf->vb.state == VIDEOBUF_DONE) {
+			struct cx25821_dev *dev = fh->dev;
+
+			if (dev && dev->channels[fh->channel_id]
+					.use_cif_resolution) {
+				u8 cam_id = *((char *)buf->vb.baddr + 3);
+				memcpy((char *)buf->vb.baddr,
+				      (char *)buf->vb.baddr + (fh->width * 2),
+				      (fh->width * 2));
+				*((char *)buf->vb.baddr + 3) = cam_id;
+			}
+		}
+
+		return POLLIN | POLLRDNORM;
+	}
+
+	return 0;
+}
+
+static int video_release(struct file *file)
+{
+	struct cx25821_fh *fh = file->private_data;
+	struct cx25821_dev *dev = fh->dev;
+
+	/* stop the risc engine and fifo */
+	cx_write(channel0->dma_ctl, 0); /* FIFO and RISC disable */
+
+	/* stop video capture */
+	if (cx25821_res_check(fh, RESOURCE_VIDEO0)) {
+		videobuf_queue_cancel(&fh->vidq);
+		cx25821_res_free(dev, fh, RESOURCE_VIDEO0);
+	}
+
+	if (fh->vidq.read_buf) {
+		cx25821_buffer_release(&fh->vidq, fh->vidq.read_buf);
+		kfree(fh->vidq.read_buf);
+	}
+
+	videobuf_mmap_free(&fh->vidq);
+
+	v4l2_prio_close(&dev->channels[fh->channel_id].prio, fh->prio);
+	file->private_data = NULL;
+	kfree(fh);
+
+	return 0;
+}
+
+static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
+{
+	struct cx25821_fh *fh = priv;
+	struct cx25821_dev *dev = fh->dev;
+
+	if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE))
+		return -EINVAL;
+
+	if (unlikely(i != fh->type))
+		return -EINVAL;
+
+	if (unlikely(!cx25821_res_get(dev, fh, cx25821_get_resource(fh,
+						RESOURCE_VIDEO0))))
+		return -EBUSY;
+
+	return videobuf_streamon(get_queue(fh));
+}
+
+static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
+{
+	struct cx25821_fh *fh = priv;
+	struct cx25821_dev *dev = fh->dev;
+	int err, res;
+
+	if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+	if (i != fh->type)
+		return -EINVAL;
+
+	res = cx25821_get_resource(fh, RESOURCE_VIDEO0);
+	err = videobuf_streamoff(get_queue(fh));
+	if (err < 0)
+		return err;
+	cx25821_res_free(dev, fh, res);
+	return 0;
+}
+
+static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
+				struct v4l2_format *f)
+{
+	struct cx25821_fh *fh = priv;
+	struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
+	struct v4l2_mbus_framefmt mbus_fmt;
+	int err;
+	int pix_format = PIXEL_FRMT_422;
+
+	if (fh) {
+		err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
+				      fh->prio);
+		if (0 != err)
+			return err;
+	}
+
+	dprintk(2, "%s()\n", __func__);
+	err = cx25821_vidioc_try_fmt_vid_cap(file, priv, f);
+
+	if (0 != err)
+		return err;
+
+	fh->fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
+	fh->vidq.field = f->fmt.pix.field;
+
+	/* check if width and height is valid based on set standard */
+	if (cx25821_is_valid_width(f->fmt.pix.width, dev->tvnorm))
+		fh->width = f->fmt.pix.width;
+
+	if (cx25821_is_valid_height(f->fmt.pix.height, dev->tvnorm))
+		fh->height = f->fmt.pix.height;
+
+	if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_Y41P)
+		pix_format = PIXEL_FRMT_411;
+	else if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV)
+		pix_format = PIXEL_FRMT_422;
+	else
+		return -EINVAL;
+
+	cx25821_set_pixel_format(dev, SRAM_CH00, pix_format);
+
+	/* check if cif resolution */
+	if (fh->width == 320 || fh->width == 352)
+		dev->channels[fh->channel_id].use_cif_resolution = 1;
+	else
+		dev->channels[fh->channel_id].use_cif_resolution = 0;
+
+	dev->channels[fh->channel_id].cif_width = fh->width;
+	medusa_set_resolution(dev, fh->width, SRAM_CH00);
+
+	dprintk(2, "%s(): width=%d height=%d field=%d\n", __func__, fh->width,
+		fh->height, fh->vidq.field);
+	v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
+	cx25821_call_all(dev, video, s_mbus_fmt, &mbus_fmt);
+
+	return 0;
+}
+
+static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
+{
+	int ret_val = 0;
+	struct cx25821_fh *fh = priv;
+	struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
+
+	ret_val = videobuf_dqbuf(get_queue(fh), p, file->f_flags & O_NONBLOCK);
+
+	p->sequence = dev->channels[fh->channel_id].vidq.count;
+
+	return ret_val;
+}
+
+static int vidioc_log_status(struct file *file, void *priv)
+{
+	struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
+	struct cx25821_fh *fh = priv;
+	char name[32 + 2];
+
+	struct sram_channel *sram_ch = dev->channels[fh->channel_id]
+								.sram_channels;
+	u32 tmp = 0;
+
+	snprintf(name, sizeof(name), "%s/2", dev->name);
+	pr_info("%s/2: ============  START LOG STATUS  ============\n",
+		dev->name);
+	cx25821_call_all(dev, core, log_status);
+	tmp = cx_read(sram_ch->dma_ctl);
+	pr_info("Video input 0 is %s\n",
+		(tmp & 0x11) ? "streaming" : "stopped");
+	pr_info("%s/2: =============  END LOG STATUS  =============\n",
+		dev->name);
+	return 0;
+}
+
+static int vidioc_s_ctrl(struct file *file, void *priv,
+			struct v4l2_control *ctl)
+{
+	struct cx25821_fh *fh = priv;
+	struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
+	int err;
+
+	if (fh) {
+		err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
+				      fh->prio);
+		if (0 != err)
+			return err;
+	}
+
+	return cx25821_set_control(dev, ctl, fh->channel_id);
+}
+
+/* VIDEO IOCTLS */
+int cx25821_vidioc_g_fmt_vid_cap(struct file *file, void *priv,
+				 struct v4l2_format *f)
+{
+	struct cx25821_fh *fh = priv;
+
+	f->fmt.pix.width = fh->width;
+	f->fmt.pix.height = fh->height;
+	f->fmt.pix.field = fh->vidq.field;
+	f->fmt.pix.pixelformat = fh->fmt->fourcc;
+	f->fmt.pix.bytesperline = (f->fmt.pix.width * fh->fmt->depth) >> 3;
+	f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
+
+	return 0;
+}
+
+int cx25821_vidioc_try_fmt_vid_cap(struct file *file, void *priv,
+				   struct v4l2_format *f)
+{
+	struct cx25821_fmt *fmt;
+	enum v4l2_field field;
+	unsigned int maxw, maxh;
+
+	fmt = cx25821_format_by_fourcc(f->fmt.pix.pixelformat);
+	if (NULL == fmt)
+		return -EINVAL;
+
+	field = f->fmt.pix.field;
+	maxw = 720;
+	maxh = 576;
+
+	if (V4L2_FIELD_ANY == field) {
+		if (f->fmt.pix.height > maxh / 2)
+			field = V4L2_FIELD_INTERLACED;
+		else
+			field = V4L2_FIELD_TOP;
+	}
+
+	switch (field) {
+	case V4L2_FIELD_TOP:
+	case V4L2_FIELD_BOTTOM:
+		maxh = maxh / 2;
+		break;
+	case V4L2_FIELD_INTERLACED:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	f->fmt.pix.field = field;
+	if (f->fmt.pix.height < 32)
+		f->fmt.pix.height = 32;
+	if (f->fmt.pix.height > maxh)
+		f->fmt.pix.height = maxh;
+	if (f->fmt.pix.width < 48)
+		f->fmt.pix.width = 48;
+	if (f->fmt.pix.width > maxw)
+		f->fmt.pix.width = maxw;
+	f->fmt.pix.width &= ~0x03;
+	f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3;
+	f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
+
+	return 0;
+}
+
+int cx25821_vidioc_querycap(struct file *file, void *priv,
+			    struct v4l2_capability *cap)
+{
+	struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
+
+	strcpy(cap->driver, "cx25821");
+	strlcpy(cap->card, cx25821_boards[dev->board].name, sizeof(cap->card));
+	sprintf(cap->bus_info, "PCIe:%s", pci_name(dev->pci));
+	cap->version = CX25821_VERSION_CODE;
+	cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE |
+		V4L2_CAP_STREAMING;
+	if (UNSET != dev->tuner_type)
+		cap->capabilities |= V4L2_CAP_TUNER;
+	return 0;
+}
+
+int cx25821_vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
+			    struct v4l2_fmtdesc *f)
+{
+	if (unlikely(f->index >= ARRAY_SIZE(formats)))
+		return -EINVAL;
+
+	strlcpy(f->description, formats[f->index].name, sizeof(f->description));
+	f->pixelformat = formats[f->index].fourcc;
+
+	return 0;
+}
+
+int cx25821_vidioc_reqbufs(struct file *file, void *priv,
+			   struct v4l2_requestbuffers *p)
+{
+	struct cx25821_fh *fh = priv;
+	return videobuf_reqbufs(get_queue(fh), p);
+}
+
+int cx25821_vidioc_querybuf(struct file *file, void *priv,
+			    struct v4l2_buffer *p)
+{
+	struct cx25821_fh *fh = priv;
+	return videobuf_querybuf(get_queue(fh), p);
+}
+
+int cx25821_vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
+{
+	struct cx25821_fh *fh = priv;
+	return videobuf_qbuf(get_queue(fh), p);
+}
+
+int cx25821_vidioc_g_priority(struct file *file, void *f, enum v4l2_priority *p)
+{
+	struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev;
+	struct cx25821_fh *fh = f;
+
+	*p = v4l2_prio_max(&dev->channels[fh->channel_id].prio);
+
+	return 0;
+}
+
+int cx25821_vidioc_s_priority(struct file *file, void *f,
+			      enum v4l2_priority prio)
+{
+	struct cx25821_fh *fh = f;
+	struct cx25821_dev *dev = ((struct cx25821_fh *)f)->dev;
+
+	return v4l2_prio_change(&dev->channels[fh->channel_id].prio, &fh->prio,
+			prio);
+}
+
+#ifdef TUNER_FLAG
+int cx25821_vidioc_s_std(struct file *file, void *priv, v4l2_std_id * tvnorms)
+{
+	struct cx25821_fh *fh = priv;
+	struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
+	int err;
+
+	dprintk(1, "%s()\n", __func__);
+
+	if (fh) {
+		err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
+				      fh->prio);
+		if (0 != err)
+			return err;
+	}
+
+	if (dev->tvnorm == *tvnorms)
+		return 0;
+
+	mutex_lock(&dev->lock);
+	cx25821_set_tvnorm(dev, *tvnorms);
+	mutex_unlock(&dev->lock);
+
+	medusa_set_videostandard(dev);
+
+	return 0;
+}
+#endif
+
+int cx25821_enum_input(struct cx25821_dev *dev, struct v4l2_input *i)
+{
+	static const char * const iname[] = {
+		[CX25821_VMUX_COMPOSITE] = "Composite",
+		[CX25821_VMUX_SVIDEO] = "S-Video",
+		[CX25821_VMUX_DEBUG] = "for debug only",
+	};
+	unsigned int n;
+	dprintk(1, "%s()\n", __func__);
+
+	n = i->index;
+	if (n >= 2)
+		return -EINVAL;
+
+	if (0 == INPUT(n)->type)
+		return -EINVAL;
+
+	i->type = V4L2_INPUT_TYPE_CAMERA;
+	strcpy(i->name, iname[INPUT(n)->type]);
+
+	i->std = CX25821_NORMS;
+	return 0;
+}
+
+int cx25821_vidioc_enum_input(struct file *file, void *priv,
+			      struct v4l2_input *i)
+{
+	struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
+	dprintk(1, "%s()\n", __func__);
+	return cx25821_enum_input(dev, i);
+}
+
+int cx25821_vidioc_g_input(struct file *file, void *priv, unsigned int *i)
+{
+	struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
+
+	*i = dev->input;
+	dprintk(1, "%s(): returns %d\n", __func__, *i);
+	return 0;
+}
+
+int cx25821_vidioc_s_input(struct file *file, void *priv, unsigned int i)
+{
+	struct cx25821_fh *fh = priv;
+	struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
+	int err;
+
+	dprintk(1, "%s(%d)\n", __func__, i);
+
+	if (fh) {
+		err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
+				      fh->prio);
+		if (0 != err)
+			return err;
+	}
+
+	if (i >= CX25821_NR_INPUT) {
+		dprintk(1, "%s(): -EINVAL\n", __func__);
+		return -EINVAL;
+	}
+
+	mutex_lock(&dev->lock);
+	cx25821_video_mux(dev, i);
+	mutex_unlock(&dev->lock);
+	return 0;
+}
+
+#ifdef TUNER_FLAG
+int cx25821_vidioc_g_frequency(struct file *file, void *priv,
+			       struct v4l2_frequency *f)
+{
+	struct cx25821_fh *fh = priv;
+	struct cx25821_dev *dev = fh->dev;
+
+	f->frequency = dev->freq;
+
+	cx25821_call_all(dev, tuner, g_frequency, f);
+
+	return 0;
+}
+
+int cx25821_set_freq(struct cx25821_dev *dev, struct v4l2_frequency *f)
+{
+	mutex_lock(&dev->lock);
+	dev->freq = f->frequency;
+
+	cx25821_call_all(dev, tuner, s_frequency, f);
+
+	/* When changing channels it is required to reset TVAUDIO */
+	msleep(10);
+
+	mutex_unlock(&dev->lock);
+
+	return 0;
+}
+
+int cx25821_vidioc_s_frequency(struct file *file, void *priv,
+			       struct v4l2_frequency *f)
+{
+	struct cx25821_fh *fh = priv;
+	struct cx25821_dev *dev;
+	int err;
+
+	if (fh) {
+		dev = fh->dev;
+		err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
+				      fh->prio);
+		if (0 != err)
+			return err;
+	} else {
+		pr_err("Invalid fh pointer!\n");
+		return -EINVAL;
+	}
+
+	return cx25821_set_freq(dev, f);
+}
+#endif
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+int cx25821_vidioc_g_register(struct file *file, void *fh,
+		      struct v4l2_dbg_register *reg)
+{
+	struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev;
+
+	if (!v4l2_chip_match_host(&reg->match))
+		return -EINVAL;
+
+	cx25821_call_all(dev, core, g_register, reg);
+
+	return 0;
+}
+
+int cx25821_vidioc_s_register(struct file *file, void *fh,
+		      struct v4l2_dbg_register *reg)
+{
+	struct cx25821_dev *dev = ((struct cx25821_fh *)fh)->dev;
+
+	if (!v4l2_chip_match_host(&reg->match))
+		return -EINVAL;
+
+	cx25821_call_all(dev, core, s_register, reg);
+
+	return 0;
+}
+
+#endif
+
+#ifdef TUNER_FLAG
+int cx25821_vidioc_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
+{
+	struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
+
+	if (unlikely(UNSET == dev->tuner_type))
+		return -EINVAL;
+	if (0 != t->index)
+		return -EINVAL;
+
+	strcpy(t->name, "Television");
+	t->type = V4L2_TUNER_ANALOG_TV;
+	t->capability = V4L2_TUNER_CAP_NORM;
+	t->rangehigh = 0xffffffffUL;
+
+	t->signal = 0xffff;	/* LOCKED */
+	return 0;
+}
+
+int cx25821_vidioc_s_tuner(struct file *file, void *priv, struct v4l2_tuner *t)
+{
+	struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
+	struct cx25821_fh *fh = priv;
+	int err;
+
+	if (fh) {
+		err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
+				      fh->prio);
+		if (0 != err)
+			return err;
+	}
+
+	dprintk(1, "%s()\n", __func__);
+	if (UNSET == dev->tuner_type)
+		return -EINVAL;
+	if (0 != t->index)
+		return -EINVAL;
+
+	return 0;
+}
+
+#endif
+/*****************************************************************************/
+static const struct v4l2_queryctrl no_ctl = {
+	.name = "42",
+	.flags = V4L2_CTRL_FLAG_DISABLED,
+};
+
+static struct v4l2_queryctrl cx25821_ctls[] = {
+	/* --- video --- */
+	{
+		.id = V4L2_CID_BRIGHTNESS,
+		.name = "Brightness",
+		.minimum = 0,
+		.maximum = 10000,
+		.step = 1,
+		.default_value = 6200,
+		.type = V4L2_CTRL_TYPE_INTEGER,
+	}, {
+		.id = V4L2_CID_CONTRAST,
+		.name = "Contrast",
+		.minimum = 0,
+		.maximum = 10000,
+		.step = 1,
+		.default_value = 5000,
+		.type = V4L2_CTRL_TYPE_INTEGER,
+	}, {
+		.id = V4L2_CID_SATURATION,
+		.name = "Saturation",
+		.minimum = 0,
+		.maximum = 10000,
+		.step = 1,
+		.default_value = 5000,
+		.type = V4L2_CTRL_TYPE_INTEGER,
+	}, {
+		.id = V4L2_CID_HUE,
+		.name = "Hue",
+		.minimum = 0,
+		.maximum = 10000,
+		.step = 1,
+		.default_value = 5000,
+		.type = V4L2_CTRL_TYPE_INTEGER,
+	}
+};
+static const int CX25821_CTLS = ARRAY_SIZE(cx25821_ctls);
+
+static int cx25821_ctrl_query(struct v4l2_queryctrl *qctrl)
+{
+	int i;
+
+	if (qctrl->id < V4L2_CID_BASE || qctrl->id >= V4L2_CID_LASTP1)
+		return -EINVAL;
+	for (i = 0; i < CX25821_CTLS; i++)
+		if (cx25821_ctls[i].id == qctrl->id)
+			break;
+	if (i == CX25821_CTLS) {
+		*qctrl = no_ctl;
+		return 0;
+	}
+	*qctrl = cx25821_ctls[i];
+	return 0;
+}
+
+int cx25821_vidioc_queryctrl(struct file *file, void *priv,
+		     struct v4l2_queryctrl *qctrl)
+{
+	return cx25821_ctrl_query(qctrl);
+}
+
+/* ------------------------------------------------------------------ */
+/* VIDEO CTRL IOCTLS                                                  */
+
+static const struct v4l2_queryctrl *ctrl_by_id(unsigned int id)
+{
+	unsigned int i;
+
+	for (i = 0; i < CX25821_CTLS; i++)
+		if (cx25821_ctls[i].id == id)
+			return cx25821_ctls + i;
+	return NULL;
+}
+
+int cx25821_vidioc_g_ctrl(struct file *file, void *priv,
+			  struct v4l2_control *ctl)
+{
+	struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
+	struct cx25821_fh *fh = priv;
+
+	const struct v4l2_queryctrl *ctrl;
+
+	ctrl = ctrl_by_id(ctl->id);
+
+	if (NULL == ctrl)
+		return -EINVAL;
+	switch (ctl->id) {
+	case V4L2_CID_BRIGHTNESS:
+		ctl->value = dev->channels[fh->channel_id].ctl_bright;
+		break;
+	case V4L2_CID_HUE:
+		ctl->value = dev->channels[fh->channel_id].ctl_hue;
+		break;
+	case V4L2_CID_CONTRAST:
+		ctl->value = dev->channels[fh->channel_id].ctl_contrast;
+		break;
+	case V4L2_CID_SATURATION:
+		ctl->value = dev->channels[fh->channel_id].ctl_saturation;
+		break;
+	}
+	return 0;
+}
+
+int cx25821_set_control(struct cx25821_dev *dev,
+			struct v4l2_control *ctl, int chan_num)
+{
+	int err;
+	const struct v4l2_queryctrl *ctrl;
+
+	err = -EINVAL;
+
+	ctrl = ctrl_by_id(ctl->id);
+
+	if (NULL == ctrl)
+		return err;
+
+	switch (ctrl->type) {
+	case V4L2_CTRL_TYPE_BOOLEAN:
+	case V4L2_CTRL_TYPE_MENU:
+	case V4L2_CTRL_TYPE_INTEGER:
+		if (ctl->value < ctrl->minimum)
+			ctl->value = ctrl->minimum;
+		if (ctl->value > ctrl->maximum)
+			ctl->value = ctrl->maximum;
+		break;
+	default:
+		/* nothing */ ;
+	}
+
+	switch (ctl->id) {
+	case V4L2_CID_BRIGHTNESS:
+		dev->channels[chan_num].ctl_bright = ctl->value;
+		medusa_set_brightness(dev, ctl->value, chan_num);
+		break;
+	case V4L2_CID_HUE:
+		dev->channels[chan_num].ctl_hue = ctl->value;
+		medusa_set_hue(dev, ctl->value, chan_num);
+		break;
+	case V4L2_CID_CONTRAST:
+		dev->channels[chan_num].ctl_contrast = ctl->value;
+		medusa_set_contrast(dev, ctl->value, chan_num);
+		break;
+	case V4L2_CID_SATURATION:
+		dev->channels[chan_num].ctl_saturation = ctl->value;
+		medusa_set_saturation(dev, ctl->value, chan_num);
+		break;
+	}
+
+	err = 0;
+
+	return err;
+}
+
+static void cx25821_init_controls(struct cx25821_dev *dev, int chan_num)
+{
+	struct v4l2_control ctrl;
+	int i;
+	for (i = 0; i < CX25821_CTLS; i++) {
+		ctrl.id = cx25821_ctls[i].id;
+		ctrl.value = cx25821_ctls[i].default_value;
+
+		cx25821_set_control(dev, &ctrl, chan_num);
+	}
+}
+
+int cx25821_vidioc_cropcap(struct file *file, void *priv,
+			   struct v4l2_cropcap *cropcap)
+{
+	struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
+
+	if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+	cropcap->bounds.top = 0;
+	cropcap->bounds.left = 0;
+	cropcap->bounds.width = 720;
+	cropcap->bounds.height = dev->tvnorm == V4L2_STD_PAL_BG ? 576 : 480;
+	cropcap->pixelaspect.numerator =
+		dev->tvnorm == V4L2_STD_PAL_BG ? 59 : 10;
+	cropcap->pixelaspect.denominator =
+		dev->tvnorm == V4L2_STD_PAL_BG ? 54 : 11;
+	cropcap->defrect = cropcap->bounds;
+	return 0;
+}
+
+int cx25821_vidioc_s_crop(struct file *file, void *priv, struct v4l2_crop *crop)
+{
+	struct cx25821_dev *dev = ((struct cx25821_fh *)priv)->dev;
+	struct cx25821_fh *fh = priv;
+	int err;
+
+	if (fh) {
+		err = v4l2_prio_check(&dev->channels[fh->channel_id].prio,
+				      fh->prio);
+		if (0 != err)
+			return err;
+	}
+	/* cx25821_vidioc_s_crop not supported */
+	return -EINVAL;
+}
+
+int cx25821_vidioc_g_crop(struct file *file, void *priv, struct v4l2_crop *crop)
+{
+	/* cx25821_vidioc_g_crop not supported */
+	return -EINVAL;
+}
+
+int cx25821_vidioc_querystd(struct file *file, void *priv, v4l2_std_id * norm)
+{
+	/* medusa does not support video standard sensing of current input */
+	*norm = CX25821_NORMS;
+
+	return 0;
+}
+
+int cx25821_is_valid_width(u32 width, v4l2_std_id tvnorm)
+{
+	if (tvnorm == V4L2_STD_PAL_BG) {
+		if (width == 352 || width == 720)
+			return 1;
+		else
+			return 0;
+	}
+
+	if (tvnorm == V4L2_STD_NTSC_M) {
+		if (width == 320 || width == 352 || width == 720)
+			return 1;
+		else
+			return 0;
+	}
+	return 0;
+}
+
+int cx25821_is_valid_height(u32 height, v4l2_std_id tvnorm)
+{
+	if (tvnorm == V4L2_STD_PAL_BG) {
+		if (height == 576 || height == 288)
+			return 1;
+		else
+			return 0;
+	}
+
+	if (tvnorm == V4L2_STD_NTSC_M) {
+		if (height == 480 || height == 240)
+			return 1;
+		else
+			return 0;
+	}
+
+	return 0;
+}
+
+static long video_ioctl_upstream9(struct file *file, unsigned int cmd,
+				 unsigned long arg)
+{
+	struct cx25821_fh *fh = file->private_data;
+	struct cx25821_dev *dev = fh->dev;
+	int command = 0;
+	struct upstream_user_struct *data_from_user;
+
+	data_from_user = (struct upstream_user_struct *)arg;
+
+	if (!data_from_user) {
+		pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
+		return 0;
+	}
+
+	command = data_from_user->command;
+
+	if (command != UPSTREAM_START_VIDEO && command != UPSTREAM_STOP_VIDEO)
+		return 0;
+
+	dev->input_filename = data_from_user->input_filename;
+	dev->input_audiofilename = data_from_user->input_filename;
+	dev->vid_stdname = data_from_user->vid_stdname;
+	dev->pixel_format = data_from_user->pixel_format;
+	dev->channel_select = data_from_user->channel_select;
+	dev->command = data_from_user->command;
+
+	switch (command) {
+	case UPSTREAM_START_VIDEO:
+		cx25821_start_upstream_video_ch1(dev, data_from_user);
+		break;
+
+	case UPSTREAM_STOP_VIDEO:
+		cx25821_stop_upstream_video_ch1(dev);
+		break;
+	}
+
+	return 0;
+}
+
+static long video_ioctl_upstream10(struct file *file, unsigned int cmd,
+				  unsigned long arg)
+{
+	struct cx25821_fh *fh = file->private_data;
+	struct cx25821_dev *dev = fh->dev;
+	int command = 0;
+	struct upstream_user_struct *data_from_user;
+
+	data_from_user = (struct upstream_user_struct *)arg;
+
+	if (!data_from_user) {
+		pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
+		return 0;
+	}
+
+	command = data_from_user->command;
+
+	if (command != UPSTREAM_START_VIDEO && command != UPSTREAM_STOP_VIDEO)
+		return 0;
+
+	dev->input_filename_ch2 = data_from_user->input_filename;
+	dev->input_audiofilename = data_from_user->input_filename;
+	dev->vid_stdname_ch2 = data_from_user->vid_stdname;
+	dev->pixel_format_ch2 = data_from_user->pixel_format;
+	dev->channel_select_ch2 = data_from_user->channel_select;
+	dev->command_ch2 = data_from_user->command;
+
+	switch (command) {
+	case UPSTREAM_START_VIDEO:
+		cx25821_start_upstream_video_ch2(dev, data_from_user);
+		break;
+
+	case UPSTREAM_STOP_VIDEO:
+		cx25821_stop_upstream_video_ch2(dev);
+		break;
+	}
+
+	return 0;
+}
+
+static long video_ioctl_upstream11(struct file *file, unsigned int cmd,
+				  unsigned long arg)
+{
+	struct cx25821_fh *fh = file->private_data;
+	struct cx25821_dev *dev = fh->dev;
+	int command = 0;
+	struct upstream_user_struct *data_from_user;
+
+	data_from_user = (struct upstream_user_struct *)arg;
+
+	if (!data_from_user) {
+		pr_err("%s(): Upstream data is INVALID. Returning\n", __func__);
+		return 0;
+	}
+
+	command = data_from_user->command;
+
+	if (command != UPSTREAM_START_AUDIO && command != UPSTREAM_STOP_AUDIO)
+		return 0;
+
+	dev->input_filename = data_from_user->input_filename;
+	dev->input_audiofilename = data_from_user->input_filename;
+	dev->vid_stdname = data_from_user->vid_stdname;
+	dev->pixel_format = data_from_user->pixel_format;
+	dev->channel_select = data_from_user->channel_select;
+	dev->command = data_from_user->command;
+
+	switch (command) {
+	case UPSTREAM_START_AUDIO:
+		cx25821_start_upstream_audio(dev, data_from_user);
+		break;
+
+	case UPSTREAM_STOP_AUDIO:
+		cx25821_stop_upstream_audio(dev);
+		break;
+	}
+
+	return 0;
+}
+
+static long video_ioctl_set(struct file *file, unsigned int cmd,
+			   unsigned long arg)
+{
+	struct cx25821_fh *fh = file->private_data;
+	struct cx25821_dev *dev = fh->dev;
+	struct downstream_user_struct *data_from_user;
+	int command;
+	int width = 720;
+	int selected_channel = 0;
+	int pix_format = 0;
+	int i = 0;
+	int cif_enable = 0;
+	int cif_width = 0;
+
+	data_from_user = (struct downstream_user_struct *)arg;
+
+	if (!data_from_user) {
+		pr_err("%s(): User data is INVALID. Returning\n", __func__);
+		return 0;
+	}
+
+	command = data_from_user->command;
+
+	if (command != SET_VIDEO_STD && command != SET_PIXEL_FORMAT
+	   && command != ENABLE_CIF_RESOLUTION && command != REG_READ
+	   && command != REG_WRITE && command != MEDUSA_READ
+	   && command != MEDUSA_WRITE) {
+		return 0;
+	}
+
+	switch (command) {
+	case SET_VIDEO_STD:
+		if (!strcmp(data_from_user->vid_stdname, "PAL"))
+			dev->tvnorm = V4L2_STD_PAL_BG;
+		else
+			dev->tvnorm = V4L2_STD_NTSC_M;
+		medusa_set_videostandard(dev);
+		break;
+
+	case SET_PIXEL_FORMAT:
+		selected_channel = data_from_user->decoder_select;
+		pix_format = data_from_user->pixel_format;
+
+		if (!(selected_channel <= 7 && selected_channel >= 0)) {
+			selected_channel -= 4;
+			selected_channel = selected_channel % 8;
+		}
+
+		if (selected_channel >= 0)
+			cx25821_set_pixel_format(dev, selected_channel,
+						pix_format);
+
+		break;
+
+	case ENABLE_CIF_RESOLUTION:
+		selected_channel = data_from_user->decoder_select;
+		cif_enable = data_from_user->cif_resolution_enable;
+		cif_width = data_from_user->cif_width;
+
+		if (cif_enable) {
+			if (dev->tvnorm & V4L2_STD_PAL_BG
+			    || dev->tvnorm & V4L2_STD_PAL_DK) {
+				width = 352;
+			} else {
+				width = cif_width;
+				if (cif_width != 320 && cif_width != 352)
+					width = 320;
+			}
+		}
+
+		if (!(selected_channel <= 7 && selected_channel >= 0)) {
+			selected_channel -= 4;
+			selected_channel = selected_channel % 8;
+		}
+
+		if (selected_channel <= 7 && selected_channel >= 0) {
+			dev->channels[selected_channel].use_cif_resolution =
+				cif_enable;
+			dev->channels[selected_channel].cif_width = width;
+		} else {
+			for (i = 0; i < VID_CHANNEL_NUM; i++) {
+				dev->channels[i].use_cif_resolution =
+					cif_enable;
+				dev->channels[i].cif_width = width;
+			}
+		}
+
+		medusa_set_resolution(dev, width, selected_channel);
+		break;
+	case REG_READ:
+		data_from_user->reg_data = cx_read(data_from_user->reg_address);
+		break;
+	case REG_WRITE:
+		cx_write(data_from_user->reg_address, data_from_user->reg_data);
+		break;
+	case MEDUSA_READ:
+		cx25821_i2c_read(&dev->i2c_bus[0],
+					 (u16) data_from_user->reg_address,
+					 &data_from_user->reg_data);
+		break;
+	case MEDUSA_WRITE:
+		cx25821_i2c_write(&dev->i2c_bus[0],
+				  (u16) data_from_user->reg_address,
+				  data_from_user->reg_data);
+		break;
+	}
+
+	return 0;
+}
+
+static long cx25821_video_ioctl(struct file *file,
+				unsigned int cmd, unsigned long arg)
+{
+	int ret = 0;
+
+	struct cx25821_fh *fh = file->private_data;
+
+	/* check to see if it's the video upstream */
+	if (fh->channel_id == SRAM_CH09) {
+		ret = video_ioctl_upstream9(file, cmd, arg);
+		return ret;
+	} else if (fh->channel_id == SRAM_CH10) {
+		ret = video_ioctl_upstream10(file, cmd, arg);
+		return ret;
+	} else if (fh->channel_id == SRAM_CH11) {
+		ret = video_ioctl_upstream11(file, cmd, arg);
+		ret = video_ioctl_set(file, cmd, arg);
+		return ret;
+	}
+
+	return video_ioctl2(file, cmd, arg);
+}
+
+/* exported stuff */
+static const struct v4l2_file_operations video_fops = {
+	.owner = THIS_MODULE,
+	.open = video_open,
+	.release = video_release,
+	.read = video_read,
+	.poll = video_poll,
+	.mmap = cx25821_video_mmap,
+	.ioctl = cx25821_video_ioctl,
+};
+
+static const struct v4l2_ioctl_ops video_ioctl_ops = {
+	.vidioc_querycap = cx25821_vidioc_querycap,
+	.vidioc_enum_fmt_vid_cap = cx25821_vidioc_enum_fmt_vid_cap,
+	.vidioc_g_fmt_vid_cap = cx25821_vidioc_g_fmt_vid_cap,
+	.vidioc_try_fmt_vid_cap = cx25821_vidioc_try_fmt_vid_cap,
+	.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
+	.vidioc_reqbufs = cx25821_vidioc_reqbufs,
+	.vidioc_querybuf = cx25821_vidioc_querybuf,
+	.vidioc_qbuf = cx25821_vidioc_qbuf,
+	.vidioc_dqbuf = vidioc_dqbuf,
+#ifdef TUNER_FLAG
+	.vidioc_s_std = cx25821_vidioc_s_std,
+	.vidioc_querystd = cx25821_vidioc_querystd,
+#endif
+	.vidioc_cropcap = cx25821_vidioc_cropcap,
+	.vidioc_s_crop = cx25821_vidioc_s_crop,
+	.vidioc_g_crop = cx25821_vidioc_g_crop,
+	.vidioc_enum_input = cx25821_vidioc_enum_input,
+	.vidioc_g_input = cx25821_vidioc_g_input,
+	.vidioc_s_input = cx25821_vidioc_s_input,
+	.vidioc_g_ctrl = cx25821_vidioc_g_ctrl,
+	.vidioc_s_ctrl = vidioc_s_ctrl,
+	.vidioc_queryctrl = cx25821_vidioc_queryctrl,
+	.vidioc_streamon = vidioc_streamon,
+	.vidioc_streamoff = vidioc_streamoff,
+	.vidioc_log_status = vidioc_log_status,
+	.vidioc_g_priority = cx25821_vidioc_g_priority,
+	.vidioc_s_priority = cx25821_vidioc_s_priority,
+#ifdef TUNER_FLAG
+	.vidioc_g_tuner = cx25821_vidioc_g_tuner,
+	.vidioc_s_tuner = cx25821_vidioc_s_tuner,
+	.vidioc_g_frequency = cx25821_vidioc_g_frequency,
+	.vidioc_s_frequency = cx25821_vidioc_s_frequency,
+#endif
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+	.vidioc_g_register = cx25821_vidioc_g_register,
+	.vidioc_s_register = cx25821_vidioc_s_register,
+#endif
+};
+
+struct video_device cx25821_videoioctl_template = {
+	.name = "cx25821-videoioctl",
+	.fops = &video_fops,
+	.ioctl_ops = &video_ioctl_ops,
+	.tvnorms = CX25821_NORMS,
+	.current_norm = V4L2_STD_NTSC_M,
+};