staging: Move media drivers to staging/media

In practice, it is being hard to distinguish when a patch
should go to staging tree or to the media tree. Better
to distinguish it, by putting the media drivers at a
separate staging directory. Newer staging drivers that include
anything with "dvb*.h", "v4l2*.h" or "videodev2.h" should
go to the drivers/staging/media tree.

Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 1839 insertions, 0 deletions

diff --git a/drivers/staging/media/go7007/go7007-v4l2.c b/drivers/staging/media/go7007/go7007-v4l2.c
new file mode 100644
index 000000000000..2b27d8da70a2
--- /dev/null
+++ b/drivers/staging/media/go7007/go7007-v4l2.c
@@ -0,0 +1,1839 @@
+/*
+ * Copyright (C) 2005-2006 Micronas USA Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (Version 2) as
+ * published by the Free Software Foundation.
+ *
+ * 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., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/version.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/unistd.h>
+#include <linux/time.h>
+#include <linux/vmalloc.h>
+#include <linux/pagemap.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-subdev.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+#include <linux/uaccess.h>
+#include <asm/system.h>
+
+#include "go7007.h"
+#include "go7007-priv.h"
+#include "wis-i2c.h"
+
+/* Temporary defines until accepted in v4l-dvb */
+#ifndef V4L2_MPEG_STREAM_TYPE_MPEG_ELEM
+#define	V4L2_MPEG_STREAM_TYPE_MPEG_ELEM   6 /* MPEG elementary stream */
+#endif
+#ifndef V4L2_MPEG_VIDEO_ENCODING_MPEG_4
+#define	V4L2_MPEG_VIDEO_ENCODING_MPEG_4   3
+#endif
+
+#define call_all(dev, o, f, args...) \
+	v4l2_device_call_until_err(dev, 0, o, f, ##args)
+
+static void deactivate_buffer(struct go7007_buffer *gobuf)
+{
+	int i;
+
+	if (gobuf->state != BUF_STATE_IDLE) {
+		list_del(&gobuf->stream);
+		gobuf->state = BUF_STATE_IDLE;
+	}
+	if (gobuf->page_count > 0) {
+		for (i = 0; i < gobuf->page_count; ++i)
+			page_cache_release(gobuf->pages[i]);
+		gobuf->page_count = 0;
+	}
+}
+
+static void abort_queued(struct go7007 *go)
+{
+	struct go7007_buffer *gobuf, *next;
+
+	list_for_each_entry_safe(gobuf, next, &go->stream, stream) {
+		deactivate_buffer(gobuf);
+	}
+}
+
+static int go7007_streamoff(struct go7007 *go)
+{
+	int retval = -EINVAL;
+	unsigned long flags;
+
+	mutex_lock(&go->hw_lock);
+	if (go->streaming) {
+		go->streaming = 0;
+		go7007_stream_stop(go);
+		spin_lock_irqsave(&go->spinlock, flags);
+		abort_queued(go);
+		spin_unlock_irqrestore(&go->spinlock, flags);
+		go7007_reset_encoder(go);
+		retval = 0;
+	}
+	mutex_unlock(&go->hw_lock);
+	return 0;
+}
+
+static int go7007_open(struct file *file)
+{
+	struct go7007 *go = video_get_drvdata(video_devdata(file));
+	struct go7007_file *gofh;
+
+	if (go->status != STATUS_ONLINE)
+		return -EBUSY;
+	gofh = kmalloc(sizeof(struct go7007_file), GFP_KERNEL);
+	if (gofh == NULL)
+		return -ENOMEM;
+	++go->ref_count;
+	gofh->go = go;
+	mutex_init(&gofh->lock);
+	gofh->buf_count = 0;
+	file->private_data = gofh;
+	return 0;
+}
+
+static int go7007_release(struct file *file)
+{
+	struct go7007_file *gofh = file->private_data;
+	struct go7007 *go = gofh->go;
+
+	if (gofh->buf_count > 0) {
+		go7007_streamoff(go);
+		go->in_use = 0;
+		kfree(gofh->bufs);
+		gofh->buf_count = 0;
+	}
+	kfree(gofh);
+	if (--go->ref_count == 0)
+		kfree(go);
+	file->private_data = NULL;
+	return 0;
+}
+
+static u32 get_frame_type_flag(struct go7007_buffer *gobuf, int format)
+{
+	u8 *f = page_address(gobuf->pages[0]);
+
+	switch (format) {
+	case GO7007_FORMAT_MJPEG:
+		return V4L2_BUF_FLAG_KEYFRAME;
+	case GO7007_FORMAT_MPEG4:
+		switch ((f[gobuf->frame_offset + 4] >> 6) & 0x3) {
+		case 0:
+			return V4L2_BUF_FLAG_KEYFRAME;
+		case 1:
+			return V4L2_BUF_FLAG_PFRAME;
+		case 2:
+			return V4L2_BUF_FLAG_BFRAME;
+		default:
+			return 0;
+		}
+	case GO7007_FORMAT_MPEG1:
+	case GO7007_FORMAT_MPEG2:
+		switch ((f[gobuf->frame_offset + 5] >> 3) & 0x7) {
+		case 1:
+			return V4L2_BUF_FLAG_KEYFRAME;
+		case 2:
+			return V4L2_BUF_FLAG_PFRAME;
+		case 3:
+			return V4L2_BUF_FLAG_BFRAME;
+		default:
+			return 0;
+		}
+	}
+
+	return 0;
+}
+
+static int set_capture_size(struct go7007 *go, struct v4l2_format *fmt, int try)
+{
+	int sensor_height = 0, sensor_width = 0;
+	int width, height, i;
+
+	if (fmt != NULL && fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG &&
+			fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MPEG &&
+			fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MPEG4)
+		return -EINVAL;
+
+	switch (go->standard) {
+	case GO7007_STD_NTSC:
+		sensor_width = 720;
+		sensor_height = 480;
+		break;
+	case GO7007_STD_PAL:
+		sensor_width = 720;
+		sensor_height = 576;
+		break;
+	case GO7007_STD_OTHER:
+		sensor_width = go->board_info->sensor_width;
+		sensor_height = go->board_info->sensor_height;
+		break;
+	}
+
+	if (fmt == NULL) {
+		width = sensor_width;
+		height = sensor_height;
+	} else if (go->board_info->sensor_flags & GO7007_SENSOR_SCALING) {
+		if (fmt->fmt.pix.width > sensor_width)
+			width = sensor_width;
+		else if (fmt->fmt.pix.width < 144)
+			width = 144;
+		else
+			width = fmt->fmt.pix.width & ~0x0f;
+
+		if (fmt->fmt.pix.height > sensor_height)
+			height = sensor_height;
+		else if (fmt->fmt.pix.height < 96)
+			height = 96;
+		else
+			height = fmt->fmt.pix.height & ~0x0f;
+	} else {
+		int requested_size = fmt->fmt.pix.width * fmt->fmt.pix.height;
+		int sensor_size = sensor_width * sensor_height;
+
+		if (64 * requested_size < 9 * sensor_size) {
+			width = sensor_width / 4;
+			height = sensor_height / 4;
+		} else if (64 * requested_size < 36 * sensor_size) {
+			width = sensor_width / 2;
+			height = sensor_height / 2;
+		} else {
+			width = sensor_width;
+			height = sensor_height;
+		}
+		width &= ~0xf;
+		height &= ~0xf;
+	}
+
+	if (fmt != NULL) {
+		u32 pixelformat = fmt->fmt.pix.pixelformat;
+
+		memset(fmt, 0, sizeof(*fmt));
+		fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+		fmt->fmt.pix.width = width;
+		fmt->fmt.pix.height = height;
+		fmt->fmt.pix.pixelformat = pixelformat;
+		fmt->fmt.pix.field = V4L2_FIELD_NONE;
+		fmt->fmt.pix.bytesperline = 0;
+		fmt->fmt.pix.sizeimage = GO7007_BUF_SIZE;
+		fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M; /* ?? */
+	}
+
+	if (try)
+		return 0;
+
+	go->width = width;
+	go->height = height;
+	go->encoder_h_offset = go->board_info->sensor_h_offset;
+	go->encoder_v_offset = go->board_info->sensor_v_offset;
+	for (i = 0; i < 4; ++i)
+		go->modet[i].enable = 0;
+	for (i = 0; i < 1624; ++i)
+		go->modet_map[i] = 0;
+
+	if (go->board_info->sensor_flags & GO7007_SENSOR_SCALING) {
+		struct v4l2_mbus_framefmt mbus_fmt;
+
+		mbus_fmt.code = V4L2_MBUS_FMT_FIXED;
+		if (fmt != NULL)
+			mbus_fmt.width = fmt->fmt.pix.width;
+		else
+			mbus_fmt.width = width;
+
+		if (height > sensor_height / 2) {
+			mbus_fmt.height = height / 2;
+			go->encoder_v_halve = 0;
+		} else {
+			mbus_fmt.height = height;
+			go->encoder_v_halve = 1;
+		}
+		call_all(&go->v4l2_dev, video, s_mbus_fmt, &mbus_fmt);
+	} else {
+		if (width <= sensor_width / 4) {
+			go->encoder_h_halve = 1;
+			go->encoder_v_halve = 1;
+			go->encoder_subsample = 1;
+		} else if (width <= sensor_width / 2) {
+			go->encoder_h_halve = 1;
+			go->encoder_v_halve = 1;
+			go->encoder_subsample = 0;
+		} else {
+			go->encoder_h_halve = 0;
+			go->encoder_v_halve = 0;
+			go->encoder_subsample = 0;
+		}
+	}
+
+	if (fmt == NULL)
+		return 0;
+
+	switch (fmt->fmt.pix.pixelformat) {
+	case V4L2_PIX_FMT_MPEG:
+		if (go->format == GO7007_FORMAT_MPEG1 ||
+				go->format == GO7007_FORMAT_MPEG2 ||
+				go->format == GO7007_FORMAT_MPEG4)
+			break;
+		go->format = GO7007_FORMAT_MPEG1;
+		go->pali = 0;
+		go->aspect_ratio = GO7007_RATIO_1_1;
+		go->gop_size = go->sensor_framerate / 1000;
+		go->ipb = 0;
+		go->closed_gop = 1;
+		go->repeat_seqhead = 1;
+		go->seq_header_enable = 1;
+		go->gop_header_enable = 1;
+		go->dvd_mode = 0;
+		break;
+	/* Backwards compatibility only! */
+	case V4L2_PIX_FMT_MPEG4:
+		if (go->format == GO7007_FORMAT_MPEG4)
+			break;
+		go->format = GO7007_FORMAT_MPEG4;
+		go->pali = 0xf5;
+		go->aspect_ratio = GO7007_RATIO_1_1;
+		go->gop_size = go->sensor_framerate / 1000;
+		go->ipb = 0;
+		go->closed_gop = 1;
+		go->repeat_seqhead = 1;
+		go->seq_header_enable = 1;
+		go->gop_header_enable = 1;
+		go->dvd_mode = 0;
+		break;
+	case V4L2_PIX_FMT_MJPEG:
+		go->format = GO7007_FORMAT_MJPEG;
+		go->pali = 0;
+		go->aspect_ratio = GO7007_RATIO_1_1;
+		go->gop_size = 0;
+		go->ipb = 0;
+		go->closed_gop = 0;
+		go->repeat_seqhead = 0;
+		go->seq_header_enable = 0;
+		go->gop_header_enable = 0;
+		go->dvd_mode = 0;
+		break;
+	}
+	return 0;
+}
+
+#if 0
+static int clip_to_modet_map(struct go7007 *go, int region,
+		struct v4l2_clip *clip_list)
+{
+	struct v4l2_clip clip, *clip_ptr;
+	int x, y, mbnum;
+
+	/* Check if coordinates are OK and if any macroblocks are already
+	 * used by other regions (besides 0) */
+	clip_ptr = clip_list;
+	while (clip_ptr) {
+		if (copy_from_user(&clip, clip_ptr, sizeof(clip)))
+			return -EFAULT;
+		if (clip.c.left < 0 || (clip.c.left & 0xF) ||
+				clip.c.width <= 0 || (clip.c.width & 0xF))
+			return -EINVAL;
+		if (clip.c.left + clip.c.width > go->width)
+			return -EINVAL;
+		if (clip.c.top < 0 || (clip.c.top & 0xF) ||
+				clip.c.height <= 0 || (clip.c.height & 0xF))
+			return -EINVAL;
+		if (clip.c.top + clip.c.height > go->height)
+			return -EINVAL;
+		for (y = 0; y < clip.c.height; y += 16)
+			for (x = 0; x < clip.c.width; x += 16) {
+				mbnum = (go->width >> 4) *
+						((clip.c.top + y) >> 4) +
+					((clip.c.left + x) >> 4);
+				if (go->modet_map[mbnum] != 0 &&
+						go->modet_map[mbnum] != region)
+					return -EBUSY;
+			}
+		clip_ptr = clip.next;
+	}
+
+	/* Clear old region macroblocks */
+	for (mbnum = 0; mbnum < 1624; ++mbnum)
+		if (go->modet_map[mbnum] == region)
+			go->modet_map[mbnum] = 0;
+
+	/* Claim macroblocks in this list */
+	clip_ptr = clip_list;
+	while (clip_ptr) {
+		if (copy_from_user(&clip, clip_ptr, sizeof(clip)))
+			return -EFAULT;
+		for (y = 0; y < clip.c.height; y += 16)
+			for (x = 0; x < clip.c.width; x += 16) {
+				mbnum = (go->width >> 4) *
+						((clip.c.top + y) >> 4) +
+					((clip.c.left + x) >> 4);
+				go->modet_map[mbnum] = region;
+			}
+		clip_ptr = clip.next;
+	}
+	return 0;
+}
+#endif
+
+static int mpeg_query_ctrl(struct v4l2_queryctrl *ctrl)
+{
+	static const u32 mpeg_ctrls[] = {
+		V4L2_CID_MPEG_CLASS,
+		V4L2_CID_MPEG_STREAM_TYPE,
+		V4L2_CID_MPEG_VIDEO_ENCODING,
+		V4L2_CID_MPEG_VIDEO_ASPECT,
+		V4L2_CID_MPEG_VIDEO_GOP_SIZE,
+		V4L2_CID_MPEG_VIDEO_GOP_CLOSURE,
+		V4L2_CID_MPEG_VIDEO_BITRATE,
+		0
+	};
+	static const u32 *ctrl_classes[] = {
+		mpeg_ctrls,
+		NULL
+	};
+
+	ctrl->id = v4l2_ctrl_next(ctrl_classes, ctrl->id);
+
+	switch (ctrl->id) {
+	case V4L2_CID_MPEG_CLASS:
+		return v4l2_ctrl_query_fill(ctrl, 0, 0, 0, 0);
+	case V4L2_CID_MPEG_STREAM_TYPE:
+		return v4l2_ctrl_query_fill(ctrl,
+				V4L2_MPEG_STREAM_TYPE_MPEG2_DVD,
+				V4L2_MPEG_STREAM_TYPE_MPEG_ELEM, 1,
+				V4L2_MPEG_STREAM_TYPE_MPEG_ELEM);
+	case V4L2_CID_MPEG_VIDEO_ENCODING:
+		return v4l2_ctrl_query_fill(ctrl,
+				V4L2_MPEG_VIDEO_ENCODING_MPEG_1,
+				V4L2_MPEG_VIDEO_ENCODING_MPEG_4, 1,
+				V4L2_MPEG_VIDEO_ENCODING_MPEG_2);
+	case V4L2_CID_MPEG_VIDEO_ASPECT:
+		return v4l2_ctrl_query_fill(ctrl,
+				V4L2_MPEG_VIDEO_ASPECT_1x1,
+				V4L2_MPEG_VIDEO_ASPECT_16x9, 1,
+				V4L2_MPEG_VIDEO_ASPECT_1x1);
+	case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
+		return v4l2_ctrl_query_fill(ctrl, 0, 34, 1, 15);
+	case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE:
+		return v4l2_ctrl_query_fill(ctrl, 0, 1, 1, 0);
+	case V4L2_CID_MPEG_VIDEO_BITRATE:
+		return v4l2_ctrl_query_fill(ctrl,
+				64000,
+				10000000, 1,
+				1500000);
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int mpeg_s_ctrl(struct v4l2_control *ctrl, struct go7007 *go)
+{
+	/* pretty sure we can't change any of these while streaming */
+	if (go->streaming)
+		return -EBUSY;
+
+	switch (ctrl->id) {
+	case V4L2_CID_MPEG_STREAM_TYPE:
+		switch (ctrl->value) {
+		case V4L2_MPEG_STREAM_TYPE_MPEG2_DVD:
+			go->format = GO7007_FORMAT_MPEG2;
+			go->bitrate = 9800000;
+			go->gop_size = 15;
+			go->pali = 0x48;
+			go->closed_gop = 1;
+			go->repeat_seqhead = 0;
+			go->seq_header_enable = 1;
+			go->gop_header_enable = 1;
+			go->dvd_mode = 1;
+			break;
+		case V4L2_MPEG_STREAM_TYPE_MPEG_ELEM:
+			/* todo: */
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	case V4L2_CID_MPEG_VIDEO_ENCODING:
+		switch (ctrl->value) {
+		case V4L2_MPEG_VIDEO_ENCODING_MPEG_1:
+			go->format = GO7007_FORMAT_MPEG1;
+			go->pali = 0;
+			break;
+		case V4L2_MPEG_VIDEO_ENCODING_MPEG_2:
+			go->format = GO7007_FORMAT_MPEG2;
+			/*if (mpeg->pali >> 24 == 2)
+				go->pali = mpeg->pali & 0xff;
+			else*/
+				go->pali = 0x48;
+			break;
+		case V4L2_MPEG_VIDEO_ENCODING_MPEG_4:
+			go->format = GO7007_FORMAT_MPEG4;
+			/*if (mpeg->pali >> 24 == 4)
+				go->pali = mpeg->pali & 0xff;
+			else*/
+				go->pali = 0xf5;
+			break;
+		default:
+			return -EINVAL;
+		}
+		go->gop_header_enable =
+			/*mpeg->flags & GO7007_MPEG_OMIT_GOP_HEADER
+			? 0 :*/ 1;
+		/*if (mpeg->flags & GO7007_MPEG_REPEAT_SEQHEADER)
+			go->repeat_seqhead = 1;
+		else*/
+			go->repeat_seqhead = 0;
+		go->dvd_mode = 0;
+		break;
+	case V4L2_CID_MPEG_VIDEO_ASPECT:
+		if (go->format == GO7007_FORMAT_MJPEG)
+			return -EINVAL;
+		switch (ctrl->value) {
+		case V4L2_MPEG_VIDEO_ASPECT_1x1:
+			go->aspect_ratio = GO7007_RATIO_1_1;
+			break;
+		case V4L2_MPEG_VIDEO_ASPECT_4x3:
+			go->aspect_ratio = GO7007_RATIO_4_3;
+			break;
+		case V4L2_MPEG_VIDEO_ASPECT_16x9:
+			go->aspect_ratio = GO7007_RATIO_16_9;
+			break;
+		case V4L2_MPEG_VIDEO_ASPECT_221x100:
+		default:
+			return -EINVAL;
+		}
+		break;
+	case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
+		if (ctrl->value < 0 || ctrl->value > 34)
+			return -EINVAL;
+		go->gop_size = ctrl->value;
+		break;
+	case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE:
+		if (ctrl->value != 0 && ctrl->value != 1)
+			return -EINVAL;
+		go->closed_gop = ctrl->value;
+		break;
+	case V4L2_CID_MPEG_VIDEO_BITRATE:
+		/* Upper bound is kind of arbitrary here */
+		if (ctrl->value < 64000 || ctrl->value > 10000000)
+			return -EINVAL;
+		go->bitrate = ctrl->value;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int mpeg_g_ctrl(struct v4l2_control *ctrl, struct go7007 *go)
+{
+	switch (ctrl->id) {
+	case V4L2_CID_MPEG_STREAM_TYPE:
+		if (go->dvd_mode)
+			ctrl->value = V4L2_MPEG_STREAM_TYPE_MPEG2_DVD;
+		else
+			ctrl->value = V4L2_MPEG_STREAM_TYPE_MPEG_ELEM;
+		break;
+	case V4L2_CID_MPEG_VIDEO_ENCODING:
+		switch (go->format) {
+		case GO7007_FORMAT_MPEG1:
+			ctrl->value = V4L2_MPEG_VIDEO_ENCODING_MPEG_1;
+			break;
+		case GO7007_FORMAT_MPEG2:
+			ctrl->value = V4L2_MPEG_VIDEO_ENCODING_MPEG_2;
+			break;
+		case GO7007_FORMAT_MPEG4:
+			ctrl->value = V4L2_MPEG_VIDEO_ENCODING_MPEG_4;
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	case V4L2_CID_MPEG_VIDEO_ASPECT:
+		switch (go->aspect_ratio) {
+		case GO7007_RATIO_1_1:
+			ctrl->value = V4L2_MPEG_VIDEO_ASPECT_1x1;
+			break;
+		case GO7007_RATIO_4_3:
+			ctrl->value = V4L2_MPEG_VIDEO_ASPECT_4x3;
+			break;
+		case GO7007_RATIO_16_9:
+			ctrl->value = V4L2_MPEG_VIDEO_ASPECT_16x9;
+			break;
+		default:
+			return -EINVAL;
+		}
+		break;
+	case V4L2_CID_MPEG_VIDEO_GOP_SIZE:
+		ctrl->value = go->gop_size;
+		break;
+	case V4L2_CID_MPEG_VIDEO_GOP_CLOSURE:
+		ctrl->value = go->closed_gop;
+		break;
+	case V4L2_CID_MPEG_VIDEO_BITRATE:
+		ctrl->value = go->bitrate;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int vidioc_querycap(struct file *file, void  *priv,
+					struct v4l2_capability *cap)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+
+	strlcpy(cap->driver, "go7007", sizeof(cap->driver));
+	strlcpy(cap->card, go->name, sizeof(cap->card));
+#if 0
+	strlcpy(cap->bus_info, dev_name(&dev->udev->dev), sizeof(cap->bus_info));
+#endif
+
+	cap->version = KERNEL_VERSION(0, 9, 8);
+
+	cap->capabilities = V4L2_CAP_VIDEO_CAPTURE |
+			    V4L2_CAP_STREAMING; /* | V4L2_CAP_AUDIO; */
+
+	if (go->board_info->flags & GO7007_BOARD_HAS_TUNER)
+		cap->capabilities |= V4L2_CAP_TUNER;
+
+	return 0;
+}
+
+static int vidioc_enum_fmt_vid_cap(struct file *file, void  *priv,
+					struct v4l2_fmtdesc *fmt)
+{
+	char *desc = NULL;
+
+	switch (fmt->index) {
+	case 0:
+		fmt->pixelformat = V4L2_PIX_FMT_MJPEG;
+		desc = "Motion-JPEG";
+		break;
+	case 1:
+		fmt->pixelformat = V4L2_PIX_FMT_MPEG;
+		desc = "MPEG1/MPEG2/MPEG4";
+		break;
+	default:
+		return -EINVAL;
+	}
+	fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	fmt->flags = V4L2_FMT_FLAG_COMPRESSED;
+
+	strncpy(fmt->description, desc, sizeof(fmt->description));
+
+	return 0;
+}
+
+static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
+					struct v4l2_format *fmt)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+
+	fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	fmt->fmt.pix.width = go->width;
+	fmt->fmt.pix.height = go->height;
+	fmt->fmt.pix.pixelformat = (go->format == GO7007_FORMAT_MJPEG) ?
+				   V4L2_PIX_FMT_MJPEG : V4L2_PIX_FMT_MPEG;
+	fmt->fmt.pix.field = V4L2_FIELD_NONE;
+	fmt->fmt.pix.bytesperline = 0;
+	fmt->fmt.pix.sizeimage = GO7007_BUF_SIZE;
+	fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
+
+	return 0;
+}
+
+static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
+			struct v4l2_format *fmt)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+
+	return set_capture_size(go, fmt, 1);
+}
+
+static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
+			struct v4l2_format *fmt)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+
+	if (go->streaming)
+		return -EBUSY;
+
+	return set_capture_size(go, fmt, 0);
+}
+
+static int vidioc_reqbufs(struct file *file, void *priv,
+			  struct v4l2_requestbuffers *req)
+{
+	struct go7007_file *gofh = priv;
+	struct go7007 *go = gofh->go;
+	int retval = -EBUSY;
+	unsigned int count, i;
+
+	if (go->streaming)
+		return retval;
+
+	if (req->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+			req->memory != V4L2_MEMORY_MMAP)
+		return -EINVAL;
+
+	mutex_lock(&gofh->lock);
+	for (i = 0; i < gofh->buf_count; ++i)
+		if (gofh->bufs[i].mapped > 0)
+			goto unlock_and_return;
+
+	mutex_lock(&go->hw_lock);
+	if (go->in_use > 0 && gofh->buf_count == 0) {
+		mutex_unlock(&go->hw_lock);
+		goto unlock_and_return;
+	}
+
+	if (gofh->buf_count > 0)
+		kfree(gofh->bufs);
+
+	retval = -ENOMEM;
+	count = req->count;
+	if (count > 0) {
+		if (count < 2)
+			count = 2;
+		if (count > 32)
+			count = 32;
+
+		gofh->bufs = kcalloc(count, sizeof(struct go7007_buffer),
+				     GFP_KERNEL);
+
+		if (!gofh->bufs) {
+			mutex_unlock(&go->hw_lock);
+			goto unlock_and_return;
+		}
+
+		for (i = 0; i < count; ++i) {
+			gofh->bufs[i].go = go;
+			gofh->bufs[i].index = i;
+			gofh->bufs[i].state = BUF_STATE_IDLE;
+			gofh->bufs[i].mapped = 0;
+		}
+
+		go->in_use = 1;
+	} else {
+		go->in_use = 0;
+	}
+
+	gofh->buf_count = count;
+	mutex_unlock(&go->hw_lock);
+	mutex_unlock(&gofh->lock);
+
+	memset(req, 0, sizeof(*req));
+
+	req->count = count;
+	req->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	req->memory = V4L2_MEMORY_MMAP;
+
+	return 0;
+
+unlock_and_return:
+	mutex_unlock(&gofh->lock);
+	return retval;
+}
+
+static int vidioc_querybuf(struct file *file, void *priv,
+			   struct v4l2_buffer *buf)
+{
+	struct go7007_file *gofh = priv;
+	int retval = -EINVAL;
+	unsigned int index;
+
+	if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return retval;
+
+	index = buf->index;
+
+	mutex_lock(&gofh->lock);
+	if (index >= gofh->buf_count)
+		goto unlock_and_return;
+
+	memset(buf, 0, sizeof(*buf));
+	buf->index = index;
+	buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+
+	switch (gofh->bufs[index].state) {
+	case BUF_STATE_QUEUED:
+		buf->flags = V4L2_BUF_FLAG_QUEUED;
+		break;
+	case BUF_STATE_DONE:
+		buf->flags = V4L2_BUF_FLAG_DONE;
+		break;
+	default:
+		buf->flags = 0;
+	}
+
+	if (gofh->bufs[index].mapped)
+		buf->flags |= V4L2_BUF_FLAG_MAPPED;
+	buf->memory = V4L2_MEMORY_MMAP;
+	buf->m.offset = index * GO7007_BUF_SIZE;
+	buf->length = GO7007_BUF_SIZE;
+	mutex_unlock(&gofh->lock);
+
+	return 0;
+
+unlock_and_return:
+	mutex_unlock(&gofh->lock);
+	return retval;
+}
+
+static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+{
+	struct go7007_file *gofh = priv;
+	struct go7007 *go = gofh->go;
+	struct go7007_buffer *gobuf;
+	unsigned long flags;
+	int retval = -EINVAL;
+	int ret;
+
+	if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
+			buf->memory != V4L2_MEMORY_MMAP)
+		return retval;
+
+	mutex_lock(&gofh->lock);
+	if (buf->index < 0 || buf->index >= gofh->buf_count)
+		goto unlock_and_return;
+
+	gobuf = &gofh->bufs[buf->index];
+	if (!gobuf->mapped)
+		goto unlock_and_return;
+
+	retval = -EBUSY;
+	if (gobuf->state != BUF_STATE_IDLE)
+		goto unlock_and_return;
+
+	/* offset will be 0 until we really support USERPTR streaming */
+	gobuf->offset = gobuf->user_addr & ~PAGE_MASK;
+	gobuf->bytesused = 0;
+	gobuf->frame_offset = 0;
+	gobuf->modet_active = 0;
+	if (gobuf->offset > 0)
+		gobuf->page_count = GO7007_BUF_PAGES + 1;
+	else
+		gobuf->page_count = GO7007_BUF_PAGES;
+
+	retval = -ENOMEM;
+	down_read(&current->mm->mmap_sem);
+	ret = get_user_pages(current, current->mm,
+			gobuf->user_addr & PAGE_MASK, gobuf->page_count,
+			1, 1, gobuf->pages, NULL);
+	up_read(&current->mm->mmap_sem);
+
+	if (ret != gobuf->page_count) {
+		int i;
+		for (i = 0; i < ret; ++i)
+			page_cache_release(gobuf->pages[i]);
+		gobuf->page_count = 0;
+		goto unlock_and_return;
+	}
+
+	gobuf->state = BUF_STATE_QUEUED;
+	spin_lock_irqsave(&go->spinlock, flags);
+	list_add_tail(&gobuf->stream, &go->stream);
+	spin_unlock_irqrestore(&go->spinlock, flags);
+	mutex_unlock(&gofh->lock);
+
+	return 0;
+
+unlock_and_return:
+	mutex_unlock(&gofh->lock);
+	return retval;
+}
+
+
+static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+{
+	struct go7007_file *gofh = priv;
+	struct go7007 *go = gofh->go;
+	struct go7007_buffer *gobuf;
+	int retval = -EINVAL;
+	unsigned long flags;
+	u32 frame_type_flag;
+	DEFINE_WAIT(wait);
+
+	if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return retval;
+	if (buf->memory != V4L2_MEMORY_MMAP)
+		return retval;
+
+	mutex_lock(&gofh->lock);
+	if (list_empty(&go->stream))
+		goto unlock_and_return;
+	gobuf = list_entry(go->stream.next,
+			struct go7007_buffer, stream);
+
+	retval = -EAGAIN;
+	if (gobuf->state != BUF_STATE_DONE &&
+			!(file->f_flags & O_NONBLOCK)) {
+		for (;;) {
+			prepare_to_wait(&go->frame_waitq, &wait,
+					TASK_INTERRUPTIBLE);
+			if (gobuf->state == BUF_STATE_DONE)
+				break;
+			if (signal_pending(current)) {
+				retval = -ERESTARTSYS;
+				break;
+			}
+			schedule();
+		}
+		finish_wait(&go->frame_waitq, &wait);
+	}
+	if (gobuf->state != BUF_STATE_DONE)
+		goto unlock_and_return;
+
+	spin_lock_irqsave(&go->spinlock, flags);
+	deactivate_buffer(gobuf);
+	spin_unlock_irqrestore(&go->spinlock, flags);
+	frame_type_flag = get_frame_type_flag(gobuf, go->format);
+	gobuf->state = BUF_STATE_IDLE;
+
+	memset(buf, 0, sizeof(*buf));
+	buf->index = gobuf->index;
+	buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+	buf->bytesused = gobuf->bytesused;
+	buf->flags = V4L2_BUF_FLAG_MAPPED | frame_type_flag;
+	buf->field = V4L2_FIELD_NONE;
+	buf->timestamp = gobuf->timestamp;
+	buf->sequence = gobuf->seq;
+	buf->memory = V4L2_MEMORY_MMAP;
+	buf->m.offset = gobuf->index * GO7007_BUF_SIZE;
+	buf->length = GO7007_BUF_SIZE;
+	buf->reserved = gobuf->modet_active;
+
+	mutex_unlock(&gofh->lock);
+	return 0;
+
+unlock_and_return:
+	mutex_unlock(&gofh->lock);
+	return retval;
+}
+
+static int vidioc_streamon(struct file *file, void *priv,
+					enum v4l2_buf_type type)
+{
+	struct go7007_file *gofh = priv;
+	struct go7007 *go = gofh->go;
+	int retval = 0;
+
+	if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	mutex_lock(&gofh->lock);
+	mutex_lock(&go->hw_lock);
+
+	if (!go->streaming) {
+		go->streaming = 1;
+		go->next_seq = 0;
+		go->active_buf = NULL;
+		if (go7007_start_encoder(go) < 0)
+			retval = -EIO;
+		else
+			retval = 0;
+	}
+	mutex_unlock(&go->hw_lock);
+	mutex_unlock(&gofh->lock);
+
+	return retval;
+}
+
+static int vidioc_streamoff(struct file *file, void *priv,
+					enum v4l2_buf_type type)
+{
+	struct go7007_file *gofh = priv;
+	struct go7007 *go = gofh->go;
+
+	if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+	mutex_lock(&gofh->lock);
+	go7007_streamoff(go);
+	mutex_unlock(&gofh->lock);
+
+	return 0;
+}
+
+static int vidioc_queryctrl(struct file *file, void *priv,
+			   struct v4l2_queryctrl *query)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+	int id = query->id;
+
+	if (0 == call_all(&go->v4l2_dev, core, queryctrl, query))
+		return 0;
+
+	query->id = id;
+	return mpeg_query_ctrl(query);
+}
+
+static int vidioc_g_ctrl(struct file *file, void *priv,
+				struct v4l2_control *ctrl)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+
+	if (0 == call_all(&go->v4l2_dev, core, g_ctrl, ctrl))
+		return 0;
+
+	return mpeg_g_ctrl(ctrl, go);
+}
+
+static int vidioc_s_ctrl(struct file *file, void *priv,
+				struct v4l2_control *ctrl)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+
+	if (0 == call_all(&go->v4l2_dev, core, s_ctrl, ctrl))
+		return 0;
+
+	return mpeg_s_ctrl(ctrl, go);
+}
+
+static int vidioc_g_parm(struct file *filp, void *priv,
+		struct v4l2_streamparm *parm)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+	struct v4l2_fract timeperframe = {
+		.numerator = 1001 *  go->fps_scale,
+		.denominator = go->sensor_framerate,
+	};
+
+	if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	parm->parm.capture.capability |= V4L2_CAP_TIMEPERFRAME;
+	parm->parm.capture.timeperframe = timeperframe;
+
+	return 0;
+}
+
+static int vidioc_s_parm(struct file *filp, void *priv,
+		struct v4l2_streamparm *parm)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+	unsigned int n, d;
+
+	if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+	if (parm->parm.capture.capturemode != 0)
+		return -EINVAL;
+
+	n = go->sensor_framerate *
+		parm->parm.capture.timeperframe.numerator;
+	d = 1001 * parm->parm.capture.timeperframe.denominator;
+	if (n != 0 && d != 0 && n > d)
+		go->fps_scale = (n + d/2) / d;
+	else
+		go->fps_scale = 1;
+
+	return 0;
+}
+
+/* VIDIOC_ENUMSTD on go7007 were used for enumberating the supported fps and
+   its resolution, when the device is not connected to TV.
+   This were an API abuse, probably used by the lack of specific IOCTL's to
+   enumberate it, by the time the driver were written.
+
+   However, since kernel 2.6.19, two new ioctls (VIDIOC_ENUM_FRAMEINTERVALS
+   and VIDIOC_ENUM_FRAMESIZES) were added for this purpose.
+
+   The two functions bellow implements the newer ioctls
+*/
+static int vidioc_enum_framesizes(struct file *filp, void *priv,
+				  struct v4l2_frmsizeenum *fsize)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+
+	/* Return -EINVAL, if it is a TV board */
+	if ((go->board_info->flags & GO7007_BOARD_HAS_TUNER) ||
+	    (go->board_info->sensor_flags & GO7007_SENSOR_TV))
+		return -EINVAL;
+
+	if (fsize->index > 0)
+		return -EINVAL;
+
+	fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE;
+	fsize->discrete.width = go->board_info->sensor_width;
+	fsize->discrete.height = go->board_info->sensor_height;
+
+	return 0;
+}
+
+static int vidioc_enum_frameintervals(struct file *filp, void *priv,
+				      struct v4l2_frmivalenum *fival)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+
+	/* Return -EINVAL, if it is a TV board */
+	if ((go->board_info->flags & GO7007_BOARD_HAS_TUNER) ||
+	    (go->board_info->sensor_flags & GO7007_SENSOR_TV))
+		return -EINVAL;
+
+	if (fival->index > 0)
+		return -EINVAL;
+
+	fival->type = V4L2_FRMIVAL_TYPE_DISCRETE;
+	fival->discrete.numerator = 1001;
+	fival->discrete.denominator = go->board_info->sensor_framerate;
+
+	return 0;
+}
+
+static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *std)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+
+	switch (go->standard) {
+	case GO7007_STD_NTSC:
+		*std = V4L2_STD_NTSC;
+		break;
+	case GO7007_STD_PAL:
+		*std = V4L2_STD_PAL;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *std)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+
+	if (go->streaming)
+		return -EBUSY;
+
+	if (!(go->board_info->sensor_flags & GO7007_SENSOR_TV) && *std != 0)
+		return -EINVAL;
+
+	if (*std == 0)
+		return -EINVAL;
+
+	if ((go->board_info->flags & GO7007_BOARD_HAS_TUNER) &&
+			go->input == go->board_info->num_inputs - 1) {
+		if (!go->i2c_adapter_online)
+			return -EIO;
+		if (call_all(&go->v4l2_dev, core, s_std, *std) < 0)
+			return -EINVAL;
+	}
+
+	if (*std & V4L2_STD_NTSC) {
+		go->standard = GO7007_STD_NTSC;
+		go->sensor_framerate = 30000;
+	} else if (*std & V4L2_STD_PAL) {
+		go->standard = GO7007_STD_PAL;
+		go->sensor_framerate = 25025;
+	} else if (*std & V4L2_STD_SECAM) {
+		go->standard = GO7007_STD_PAL;
+		go->sensor_framerate = 25025;
+	} else
+		return -EINVAL;
+
+	call_all(&go->v4l2_dev, core, s_std, *std);
+	set_capture_size(go, NULL, 0);
+
+	return 0;
+}
+
+static int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *std)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+
+	if ((go->board_info->flags & GO7007_BOARD_HAS_TUNER) &&
+			go->input == go->board_info->num_inputs - 1) {
+		if (!go->i2c_adapter_online)
+			return -EIO;
+		return call_all(&go->v4l2_dev, video, querystd, std);
+	} else if (go->board_info->sensor_flags & GO7007_SENSOR_TV)
+		*std = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM;
+	else
+		*std = 0;
+
+	return 0;
+}
+
+static int vidioc_enum_input(struct file *file, void *priv,
+				struct v4l2_input *inp)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+
+	if (inp->index >= go->board_info->num_inputs)
+		return -EINVAL;
+
+	strncpy(inp->name, go->board_info->inputs[inp->index].name,
+			sizeof(inp->name));
+
+	/* If this board has a tuner, it will be the last input */
+	if ((go->board_info->flags & GO7007_BOARD_HAS_TUNER) &&
+			inp->index == go->board_info->num_inputs - 1)
+		inp->type = V4L2_INPUT_TYPE_TUNER;
+	else
+		inp->type = V4L2_INPUT_TYPE_CAMERA;
+
+	inp->audioset = 0;
+	inp->tuner = 0;
+	if (go->board_info->sensor_flags & GO7007_SENSOR_TV)
+		inp->std = V4L2_STD_NTSC | V4L2_STD_PAL |
+						V4L2_STD_SECAM;
+	else
+		inp->std = 0;
+
+	return 0;
+}
+
+
+static int vidioc_g_input(struct file *file, void *priv, unsigned int *input)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+
+	*input = go->input;
+
+	return 0;
+}
+
+static int vidioc_s_input(struct file *file, void *priv, unsigned int input)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+
+	if (input >= go->board_info->num_inputs)
+		return -EINVAL;
+	if (go->streaming)
+		return -EBUSY;
+
+	go->input = input;
+
+	return call_all(&go->v4l2_dev, video, s_routing, input, 0, 0);
+}
+
+static int vidioc_g_tuner(struct file *file, void *priv,
+				struct v4l2_tuner *t)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+
+	if (!(go->board_info->flags & GO7007_BOARD_HAS_TUNER))
+		return -EINVAL;
+	if (t->index != 0)
+		return -EINVAL;
+	if (!go->i2c_adapter_online)
+		return -EIO;
+
+	return call_all(&go->v4l2_dev, tuner, g_tuner, t);
+}
+
+static int vidioc_s_tuner(struct file *file, void *priv,
+				struct v4l2_tuner *t)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+
+	if (!(go->board_info->flags & GO7007_BOARD_HAS_TUNER))
+		return -EINVAL;
+	if (t->index != 0)
+		return -EINVAL;
+	if (!go->i2c_adapter_online)
+		return -EIO;
+
+	switch (go->board_id) {
+	case GO7007_BOARDID_PX_TV402U_NA:
+	case GO7007_BOARDID_PX_TV402U_JP:
+		/* No selectable options currently */
+		if (t->audmode != V4L2_TUNER_MODE_STEREO)
+			return -EINVAL;
+		break;
+	}
+
+	return call_all(&go->v4l2_dev, tuner, s_tuner, t);
+}
+
+static int vidioc_g_frequency(struct file *file, void *priv,
+				struct v4l2_frequency *f)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+
+	if (!(go->board_info->flags & GO7007_BOARD_HAS_TUNER))
+		return -EINVAL;
+	if (!go->i2c_adapter_online)
+		return -EIO;
+
+	f->type = V4L2_TUNER_ANALOG_TV;
+
+	return call_all(&go->v4l2_dev, tuner, g_frequency, f);
+}
+
+static int vidioc_s_frequency(struct file *file, void *priv,
+				struct v4l2_frequency *f)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+
+	if (!(go->board_info->flags & GO7007_BOARD_HAS_TUNER))
+		return -EINVAL;
+	if (!go->i2c_adapter_online)
+		return -EIO;
+
+	return call_all(&go->v4l2_dev, tuner, s_frequency, f);
+}
+
+static int vidioc_cropcap(struct file *file, void *priv,
+					struct v4l2_cropcap *cropcap)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+
+	if (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	/* These specify the raw input of the sensor */
+	switch (go->standard) {
+	case GO7007_STD_NTSC:
+		cropcap->bounds.top = 0;
+		cropcap->bounds.left = 0;
+		cropcap->bounds.width = 720;
+		cropcap->bounds.height = 480;
+		cropcap->defrect.top = 0;
+		cropcap->defrect.left = 0;
+		cropcap->defrect.width = 720;
+		cropcap->defrect.height = 480;
+		break;
+	case GO7007_STD_PAL:
+		cropcap->bounds.top = 0;
+		cropcap->bounds.left = 0;
+		cropcap->bounds.width = 720;
+		cropcap->bounds.height = 576;
+		cropcap->defrect.top = 0;
+		cropcap->defrect.left = 0;
+		cropcap->defrect.width = 720;
+		cropcap->defrect.height = 576;
+		break;
+	case GO7007_STD_OTHER:
+		cropcap->bounds.top = 0;
+		cropcap->bounds.left = 0;
+		cropcap->bounds.width = go->board_info->sensor_width;
+		cropcap->bounds.height = go->board_info->sensor_height;
+		cropcap->defrect.top = 0;
+		cropcap->defrect.left = 0;
+		cropcap->defrect.width = go->board_info->sensor_width;
+		cropcap->defrect.height = go->board_info->sensor_height;
+		break;
+	}
+
+	return 0;
+}
+
+static int vidioc_g_crop(struct file *file, void *priv, struct v4l2_crop *crop)
+{
+	struct go7007 *go = ((struct go7007_file *) priv)->go;
+
+	if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	crop->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+
+	/* These specify the raw input of the sensor */
+	switch (go->standard) {
+	case GO7007_STD_NTSC:
+		crop->c.top = 0;
+		crop->c.left = 0;
+		crop->c.width = 720;
+		crop->c.height = 480;
+		break;
+	case GO7007_STD_PAL:
+		crop->c.top = 0;
+		crop->c.left = 0;
+		crop->c.width = 720;
+		crop->c.height = 576;
+		break;
+	case GO7007_STD_OTHER:
+		crop->c.top = 0;
+		crop->c.left = 0;
+		crop->c.width = go->board_info->sensor_width;
+		crop->c.height = go->board_info->sensor_height;
+		break;
+	}
+
+	return 0;
+}
+
+/* FIXME: vidioc_s_crop is not really implemented!!!
+ */
+static int vidioc_s_crop(struct file *file, void *priv, struct v4l2_crop *crop)
+{
+	if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int vidioc_g_jpegcomp(struct file *file, void *priv,
+			 struct v4l2_jpegcompression *params)
+{
+	memset(params, 0, sizeof(*params));
+	params->quality = 50; /* ?? */
+	params->jpeg_markers = V4L2_JPEG_MARKER_DHT |
+				V4L2_JPEG_MARKER_DQT;
+
+	return 0;
+}
+
+static int vidioc_s_jpegcomp(struct file *file, void *priv,
+			 struct v4l2_jpegcompression *params)
+{
+	if (params->quality != 50 ||
+			params->jpeg_markers != (V4L2_JPEG_MARKER_DHT |
+						V4L2_JPEG_MARKER_DQT))
+		return -EINVAL;
+
+	return 0;
+}
+
+/* FIXME:
+	Those ioctls are private, and not needed, since several standard
+	extended controls already provide streaming control.
+	So, those ioctls should be converted into vidioc_g_ext_ctrls()
+	and vidioc_s_ext_ctrls()
+ */
+
+#if 0
+	/* Temporary ioctls for controlling compression characteristics */
+	case GO7007IOC_S_BITRATE:
+	{
+		int *bitrate = arg;
+
+		if (go->streaming)
+			return -EINVAL;
+		/* Upper bound is kind of arbitrary here */
+		if (*bitrate < 64000 || *bitrate > 10000000)
+			return -EINVAL;
+		go->bitrate = *bitrate;
+		return 0;
+	}
+	case GO7007IOC_G_BITRATE:
+	{
+		int *bitrate = arg;
+
+		*bitrate = go->bitrate;
+		return 0;
+	}
+	case GO7007IOC_S_COMP_PARAMS:
+	{
+		struct go7007_comp_params *comp = arg;
+
+		if (go->format == GO7007_FORMAT_MJPEG)
+			return -EINVAL;
+		if (comp->gop_size > 0)
+			go->gop_size = comp->gop_size;
+		else
+			go->gop_size = go->sensor_framerate / 1000;
+		if (go->gop_size != 15)
+			go->dvd_mode = 0;
+		/*go->ipb = comp->max_b_frames > 0;*/ /* completely untested */
+		if (go->board_info->sensor_flags & GO7007_SENSOR_TV) {
+			switch (comp->aspect_ratio) {
+			case GO7007_ASPECT_RATIO_4_3_NTSC:
+			case GO7007_ASPECT_RATIO_4_3_PAL:
+				go->aspect_ratio = GO7007_RATIO_4_3;
+				break;
+			case GO7007_ASPECT_RATIO_16_9_NTSC:
+			case GO7007_ASPECT_RATIO_16_9_PAL:
+				go->aspect_ratio = GO7007_RATIO_16_9;
+				break;
+			default:
+				go->aspect_ratio = GO7007_RATIO_1_1;
+				break;
+			}
+		}
+		if (comp->flags & GO7007_COMP_OMIT_SEQ_HEADER) {
+			go->dvd_mode = 0;
+			go->seq_header_enable = 0;
+		} else {
+			go->seq_header_enable = 1;
+		}
+		/* fall-through */
+	}
+	case GO7007IOC_G_COMP_PARAMS:
+	{
+		struct go7007_comp_params *comp = arg;
+
+		if (go->format == GO7007_FORMAT_MJPEG)
+			return -EINVAL;
+		memset(comp, 0, sizeof(*comp));
+		comp->gop_size = go->gop_size;
+		comp->max_b_frames = go->ipb ? 2 : 0;
+		switch (go->aspect_ratio) {
+		case GO7007_RATIO_4_3:
+			if (go->standard == GO7007_STD_NTSC)
+				comp->aspect_ratio =
+					GO7007_ASPECT_RATIO_4_3_NTSC;
+			else
+				comp->aspect_ratio =
+					GO7007_ASPECT_RATIO_4_3_PAL;
+			break;
+		case GO7007_RATIO_16_9:
+			if (go->standard == GO7007_STD_NTSC)
+				comp->aspect_ratio =
+					GO7007_ASPECT_RATIO_16_9_NTSC;
+			else
+				comp->aspect_ratio =
+					GO7007_ASPECT_RATIO_16_9_PAL;
+			break;
+		default:
+			comp->aspect_ratio = GO7007_ASPECT_RATIO_1_1;
+			break;
+		}
+		if (go->closed_gop)
+			comp->flags |= GO7007_COMP_CLOSED_GOP;
+		if (!go->seq_header_enable)
+			comp->flags |= GO7007_COMP_OMIT_SEQ_HEADER;
+		return 0;
+	}
+	case GO7007IOC_S_MPEG_PARAMS:
+	{
+		struct go7007_mpeg_params *mpeg = arg;
+
+		if (go->format != GO7007_FORMAT_MPEG1 &&
+				go->format != GO7007_FORMAT_MPEG2 &&
+				go->format != GO7007_FORMAT_MPEG4)
+			return -EINVAL;
+
+		if (mpeg->flags & GO7007_MPEG_FORCE_DVD_MODE) {
+			go->format = GO7007_FORMAT_MPEG2;
+			go->bitrate = 9800000;
+			go->gop_size = 15;
+			go->pali = 0x48;
+			go->closed_gop = 1;
+			go->repeat_seqhead = 0;
+			go->seq_header_enable = 1;
+			go->gop_header_enable = 1;
+			go->dvd_mode = 1;
+		} else {
+			switch (mpeg->mpeg_video_standard) {
+			case GO7007_MPEG_VIDEO_MPEG1:
+				go->format = GO7007_FORMAT_MPEG1;
+				go->pali = 0;
+				break;
+			case GO7007_MPEG_VIDEO_MPEG2:
+				go->format = GO7007_FORMAT_MPEG2;
+				if (mpeg->pali >> 24 == 2)
+					go->pali = mpeg->pali & 0xff;
+				else
+					go->pali = 0x48;
+				break;
+			case GO7007_MPEG_VIDEO_MPEG4:
+				go->format = GO7007_FORMAT_MPEG4;
+				if (mpeg->pali >> 24 == 4)
+					go->pali = mpeg->pali & 0xff;
+				else
+					go->pali = 0xf5;
+				break;
+			default:
+				return -EINVAL;
+			}
+			go->gop_header_enable =
+				mpeg->flags & GO7007_MPEG_OMIT_GOP_HEADER
+				? 0 : 1;
+			if (mpeg->flags & GO7007_MPEG_REPEAT_SEQHEADER)
+				go->repeat_seqhead = 1;
+			else
+				go->repeat_seqhead = 0;
+			go->dvd_mode = 0;
+		}
+		/* fall-through */
+	}
+	case GO7007IOC_G_MPEG_PARAMS:
+	{
+		struct go7007_mpeg_params *mpeg = arg;
+
+		memset(mpeg, 0, sizeof(*mpeg));
+		switch (go->format) {
+		case GO7007_FORMAT_MPEG1:
+			mpeg->mpeg_video_standard = GO7007_MPEG_VIDEO_MPEG1;
+			mpeg->pali = 0;
+			break;
+		case GO7007_FORMAT_MPEG2:
+			mpeg->mpeg_video_standard = GO7007_MPEG_VIDEO_MPEG2;
+			mpeg->pali = GO7007_MPEG_PROFILE(2, go->pali);
+			break;
+		case GO7007_FORMAT_MPEG4:
+			mpeg->mpeg_video_standard = GO7007_MPEG_VIDEO_MPEG4;
+			mpeg->pali = GO7007_MPEG_PROFILE(4, go->pali);
+			break;
+		default:
+			return -EINVAL;
+		}
+		if (!go->gop_header_enable)
+			mpeg->flags |= GO7007_MPEG_OMIT_GOP_HEADER;
+		if (go->repeat_seqhead)
+			mpeg->flags |= GO7007_MPEG_REPEAT_SEQHEADER;
+		if (go->dvd_mode)
+			mpeg->flags |= GO7007_MPEG_FORCE_DVD_MODE;
+		return 0;
+	}
+	case GO7007IOC_S_MD_PARAMS:
+	{
+		struct go7007_md_params *mdp = arg;
+
+		if (mdp->region > 3)
+			return -EINVAL;
+		if (mdp->trigger > 0) {
+			go->modet[mdp->region].pixel_threshold =
+					mdp->pixel_threshold >> 1;
+			go->modet[mdp->region].motion_threshold =
+					mdp->motion_threshold >> 1;
+			go->modet[mdp->region].mb_threshold =
+					mdp->trigger >> 1;
+			go->modet[mdp->region].enable = 1;
+		} else
+			go->modet[mdp->region].enable = 0;
+		/* fall-through */
+	}
+	case GO7007IOC_G_MD_PARAMS:
+	{
+		struct go7007_md_params *mdp = arg;
+		int region = mdp->region;
+
+		if (mdp->region > 3)
+			return -EINVAL;
+		memset(mdp, 0, sizeof(struct go7007_md_params));
+		mdp->region = region;
+		if (!go->modet[region].enable)
+			return 0;
+		mdp->pixel_threshold =
+			(go->modet[region].pixel_threshold << 1) + 1;
+		mdp->motion_threshold =
+			(go->modet[region].motion_threshold << 1) + 1;
+		mdp->trigger =
+			(go->modet[region].mb_threshold << 1) + 1;
+		return 0;
+	}
+	case GO7007IOC_S_MD_REGION:
+	{
+		struct go7007_md_region *region = arg;
+
+		if (region->region < 1 || region->region > 3)
+			return -EINVAL;
+		return clip_to_modet_map(go, region->region, region->clips);
+	}
+#endif
+
+static ssize_t go7007_read(struct file *file, char __user *data,
+		size_t count, loff_t *ppos)
+{
+	return -EINVAL;
+}
+
+static void go7007_vm_open(struct vm_area_struct *vma)
+{
+	struct go7007_buffer *gobuf = vma->vm_private_data;
+
+	++gobuf->mapped;
+}
+
+static void go7007_vm_close(struct vm_area_struct *vma)
+{
+	struct go7007_buffer *gobuf = vma->vm_private_data;
+	unsigned long flags;
+
+	if (--gobuf->mapped == 0) {
+		spin_lock_irqsave(&gobuf->go->spinlock, flags);
+		deactivate_buffer(gobuf);
+		spin_unlock_irqrestore(&gobuf->go->spinlock, flags);
+	}
+}
+
+/* Copied from videobuf-dma-sg.c */
+static int go7007_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+	struct page *page;
+
+	page = alloc_page(GFP_USER | __GFP_DMA32);
+	if (!page)
+		return VM_FAULT_OOM;
+	clear_user_highpage(page, (unsigned long)vmf->virtual_address);
+	vmf->page = page;
+	return 0;
+}
+
+static struct vm_operations_struct go7007_vm_ops = {
+	.open	= go7007_vm_open,
+	.close	= go7007_vm_close,
+	.fault	= go7007_vm_fault,
+};
+
+static int go7007_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	struct go7007_file *gofh = file->private_data;
+	unsigned int index;
+
+	if (gofh->go->status != STATUS_ONLINE)
+		return -EIO;
+	if (!(vma->vm_flags & VM_SHARED))
+		return -EINVAL; /* only support VM_SHARED mapping */
+	if (vma->vm_end - vma->vm_start != GO7007_BUF_SIZE)
+		return -EINVAL; /* must map exactly one full buffer */
+	mutex_lock(&gofh->lock);
+	index = vma->vm_pgoff / GO7007_BUF_PAGES;
+	if (index >= gofh->buf_count) {
+		mutex_unlock(&gofh->lock);
+		return -EINVAL; /* trying to map beyond requested buffers */
+	}
+	if (index * GO7007_BUF_PAGES != vma->vm_pgoff) {
+		mutex_unlock(&gofh->lock);
+		return -EINVAL; /* offset is not aligned on buffer boundary */
+	}
+	if (gofh->bufs[index].mapped > 0) {
+		mutex_unlock(&gofh->lock);
+		return -EBUSY;
+	}
+	gofh->bufs[index].mapped = 1;
+	gofh->bufs[index].user_addr = vma->vm_start;
+	vma->vm_ops = &go7007_vm_ops;
+	vma->vm_flags |= VM_DONTEXPAND;
+	vma->vm_flags &= ~VM_IO;
+	vma->vm_private_data = &gofh->bufs[index];
+	mutex_unlock(&gofh->lock);
+	return 0;
+}
+
+static unsigned int go7007_poll(struct file *file, poll_table *wait)
+{
+	struct go7007_file *gofh = file->private_data;
+	struct go7007_buffer *gobuf;
+
+	if (list_empty(&gofh->go->stream))
+		return POLLERR;
+	gobuf = list_entry(gofh->go->stream.next, struct go7007_buffer, stream);
+	poll_wait(file, &gofh->go->frame_waitq, wait);
+	if (gobuf->state == BUF_STATE_DONE)
+		return POLLIN | POLLRDNORM;
+	return 0;
+}
+
+static void go7007_vfl_release(struct video_device *vfd)
+{
+	struct go7007 *go = video_get_drvdata(vfd);
+
+	video_device_release(vfd);
+	if (--go->ref_count == 0)
+		kfree(go);
+}
+
+static struct v4l2_file_operations go7007_fops = {
+	.owner		= THIS_MODULE,
+	.open		= go7007_open,
+	.release	= go7007_release,
+	.ioctl		= video_ioctl2,
+	.read		= go7007_read,
+	.mmap		= go7007_mmap,
+	.poll		= go7007_poll,
+};
+
+static const struct v4l2_ioctl_ops video_ioctl_ops = {
+	.vidioc_querycap          = vidioc_querycap,
+	.vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
+	.vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
+	.vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
+	.vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
+	.vidioc_reqbufs           = vidioc_reqbufs,
+	.vidioc_querybuf          = vidioc_querybuf,
+	.vidioc_qbuf              = vidioc_qbuf,
+	.vidioc_dqbuf             = vidioc_dqbuf,
+	.vidioc_g_std             = vidioc_g_std,
+	.vidioc_s_std             = vidioc_s_std,
+	.vidioc_querystd          = vidioc_querystd,
+	.vidioc_enum_input        = vidioc_enum_input,
+	.vidioc_g_input           = vidioc_g_input,
+	.vidioc_s_input           = vidioc_s_input,
+	.vidioc_queryctrl         = vidioc_queryctrl,
+	.vidioc_g_ctrl            = vidioc_g_ctrl,
+	.vidioc_s_ctrl            = vidioc_s_ctrl,
+	.vidioc_streamon          = vidioc_streamon,
+	.vidioc_streamoff         = vidioc_streamoff,
+	.vidioc_g_tuner           = vidioc_g_tuner,
+	.vidioc_s_tuner           = vidioc_s_tuner,
+	.vidioc_g_frequency       = vidioc_g_frequency,
+	.vidioc_s_frequency       = vidioc_s_frequency,
+	.vidioc_g_parm            = vidioc_g_parm,
+	.vidioc_s_parm            = vidioc_s_parm,
+	.vidioc_enum_framesizes   = vidioc_enum_framesizes,
+	.vidioc_enum_frameintervals = vidioc_enum_frameintervals,
+	.vidioc_cropcap           = vidioc_cropcap,
+	.vidioc_g_crop            = vidioc_g_crop,
+	.vidioc_s_crop            = vidioc_s_crop,
+	.vidioc_g_jpegcomp        = vidioc_g_jpegcomp,
+	.vidioc_s_jpegcomp        = vidioc_s_jpegcomp,
+};
+
+static struct video_device go7007_template = {
+	.name		= "go7007",
+	.fops		= &go7007_fops,
+	.release	= go7007_vfl_release,
+	.ioctl_ops	= &video_ioctl_ops,
+	.tvnorms	= V4L2_STD_ALL,
+	.current_norm	= V4L2_STD_NTSC,
+};
+
+int go7007_v4l2_init(struct go7007 *go)
+{
+	int rv;
+
+	go->video_dev = video_device_alloc();
+	if (go->video_dev == NULL)
+		return -ENOMEM;
+	*go->video_dev = go7007_template;
+	go->video_dev->parent = go->dev;
+	rv = video_register_device(go->video_dev, VFL_TYPE_GRABBER, -1);
+	if (rv < 0) {
+		video_device_release(go->video_dev);
+		go->video_dev = NULL;
+		return rv;
+	}
+	rv = v4l2_device_register(go->dev, &go->v4l2_dev);
+	if (rv < 0) {
+		video_device_release(go->video_dev);
+		go->video_dev = NULL;
+		return rv;
+	}
+	video_set_drvdata(go->video_dev, go);
+	++go->ref_count;
+	printk(KERN_INFO "%s: registered device %s [v4l2]\n",
+	       go->video_dev->name, video_device_node_name(go->video_dev));
+
+	return 0;
+}
+
+void go7007_v4l2_remove(struct go7007 *go)
+{
+	unsigned long flags;
+
+	mutex_lock(&go->hw_lock);
+	if (go->streaming) {
+		go->streaming = 0;
+		go7007_stream_stop(go);
+		spin_lock_irqsave(&go->spinlock, flags);
+		abort_queued(go);
+		spin_unlock_irqrestore(&go->spinlock, flags);
+	}
+	mutex_unlock(&go->hw_lock);
+	if (go->video_dev)
+		video_unregister_device(go->video_dev);
+	v4l2_device_unregister(&go->v4l2_dev);
+}