drivers/media/video/ivtv/ivtv-ioctl.c

/*
    ioctl system call
    Copyright (C) 2003-2004  Kevin Thayer <nufan_wfk at yahoo.com>
    Copyright (C) 2005-2007  Hans Verkuil <hverkuil@xs4all.nl>

    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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "ivtv-driver.h"
#include "ivtv-version.h"
#include "ivtv-mailbox.h"
#include "ivtv-i2c.h"
#include "ivtv-queue.h"
#include "ivtv-fileops.h"
#include "ivtv-vbi.h"
#include "ivtv-routing.h"
#include "ivtv-streams.h"
#include "ivtv-yuv.h"
#include "ivtv-ioctl.h"
#include "ivtv-gpio.h"
#include "ivtv-controls.h"
#include "ivtv-cards.h"
#include <media/saa7127.h>
#include <media/tveeprom.h>
#include <media/v4l2-chip-ident.h>
#include <linux/dvb/audio.h>
#include <linux/i2c-id.h>

u16 ivtv_service2vbi(int type)
{
	switch (type) {
		case V4L2_SLICED_TELETEXT_B:
			return IVTV_SLICED_TYPE_TELETEXT_B;
		case V4L2_SLICED_CAPTION_525:
			return IVTV_SLICED_TYPE_CAPTION_525;
		case V4L2_SLICED_WSS_625:
			return IVTV_SLICED_TYPE_WSS_625;
		case V4L2_SLICED_VPS:
			return IVTV_SLICED_TYPE_VPS;
		default:
			return 0;
	}
}

static int valid_service_line(int field, int line, int is_pal)
{
	return (is_pal && line >= 6 && (line != 23 || field == 0)) ||
	       (!is_pal && line >= 10 && line < 22);
}

static u16 select_service_from_set(int field, int line, u16 set, int is_pal)
{
	u16 valid_set = (is_pal ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525);
	int i;

	set = set & valid_set;
	if (set == 0 || !valid_service_line(field, line, is_pal)) {
		return 0;
	}
	if (!is_pal) {
		if (line == 21 && (set & V4L2_SLICED_CAPTION_525))
			return V4L2_SLICED_CAPTION_525;
	}
	else {
		if (line == 16 && field == 0 && (set & V4L2_SLICED_VPS))
			return V4L2_SLICED_VPS;
		if (line == 23 && field == 0 && (set & V4L2_SLICED_WSS_625))
			return V4L2_SLICED_WSS_625;
		if (line == 23)
			return 0;
	}
	for (i = 0; i < 32; i++) {
		if ((1 << i) & set)
			return 1 << i;
	}
	return 0;
}

void ivtv_expand_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
{
	u16 set = fmt->service_set;
	int f, l;

	fmt->service_set = 0;
	for (f = 0; f < 2; f++) {
		for (l = 0; l < 24; l++) {
			fmt->service_lines[f][l] = select_service_from_set(f, l, set, is_pal);
		}
	}
}

static int check_service_set(struct v4l2_sliced_vbi_format *fmt, int is_pal)
{
	int f, l;
	u16 set = 0;

	for (f = 0; f < 2; f++) {
		for (l = 0; l < 24; l++) {
			fmt->service_lines[f][l] = select_service_from_set(f, l, fmt->service_lines[f][l], is_pal);
			set |= fmt->service_lines[f][l];
		}
	}
	return set != 0;
}

u16 ivtv_get_service_set(struct v4l2_sliced_vbi_format *fmt)
{
	int f, l;
	u16 set = 0;

	for (f = 0; f < 2; f++) {
		for (l = 0; l < 24; l++) {
			set |= fmt->service_lines[f][l];
		}
	}
	return set;
}

static const struct {
	v4l2_std_id  std;
	char        *name;
} enum_stds[] = {
	{ V4L2_STD_PAL_BG | V4L2_STD_PAL_H, "PAL-BGH" },
	{ V4L2_STD_PAL_DK,    "PAL-DK"    },
	{ V4L2_STD_PAL_I,     "PAL-I"     },
	{ V4L2_STD_PAL_M,     "PAL-M"     },
	{ V4L2_STD_PAL_N,     "PAL-N"     },
	{ V4L2_STD_PAL_Nc,    "PAL-Nc"    },
	{ V4L2_STD_SECAM_B | V4L2_STD_SECAM_G | V4L2_STD_SECAM_H, "SECAM-BGH" },
	{ V4L2_STD_SECAM_DK,  "SECAM-DK"  },
	{ V4L2_STD_SECAM_L,   "SECAM-L"   },
	{ V4L2_STD_SECAM_LC,  "SECAM-L'"  },
	{ V4L2_STD_NTSC_M,    "NTSC-M"    },
	{ V4L2_STD_NTSC_M_JP, "NTSC-J"    },
	{ V4L2_STD_NTSC_M_KR, "NTSC-K"    },
};

static const struct v4l2_standard ivtv_std_60hz =
{
	.frameperiod = {.numerator = 1001, .denominator = 30000},
	.framelines = 525,
};

static const struct v4l2_standard ivtv_std_50hz =
{
	.frameperiod = {.numerator = 1, .denominator = 25},
	.framelines = 625,
};

void ivtv_set_osd_alpha(struct ivtv *itv)
{
	ivtv_vapi(itv, CX2341X_OSD_SET_GLOBAL_ALPHA, 3,
		itv->osd_global_alpha_state, itv->osd_global_alpha, !itv->osd_local_alpha_state);
	ivtv_vapi(itv, CX2341X_OSD_SET_CHROMA_KEY, 2, itv->osd_chroma_key_state, itv->osd_chroma_key);
}

int ivtv_set_speed(struct ivtv *itv, int speed)
{
	u32 data[CX2341X_MBOX_MAX_DATA];
	struct ivtv_stream *s;
	int single_step = (speed == 1 || speed == -1);
	DEFINE_WAIT(wait);

	if (speed == 0) speed = 1000;

	/* No change? */
	if (speed == itv->speed && !single_step)
		return 0;

	s = &itv->streams[IVTV_DEC_STREAM_TYPE_MPG];

	if (single_step && (speed < 0) == (itv->speed < 0)) {
		/* Single step video and no need to change direction */
		ivtv_vapi(itv, CX2341X_DEC_STEP_VIDEO, 1, 0);
		itv->speed = speed;
		return 0;
	}
	if (single_step)
		/* Need to change direction */
		speed = speed < 0 ? -1000 : 1000;

	data[0] = (speed > 1000 || speed < -1000) ? 0x80000000 : 0;
	data[0] |= (speed > 1000 || speed < -1500) ? 0x40000000 : 0;
	data[1] = (speed < 0);
	data[2] = speed < 0 ? 3 : 7;
	data[3] = itv->params.video_b_frames;
	data[4] = (speed == 1500 || speed == 500) ? itv->speed_mute_audio : 0;
	data[5] = 0;
	data[6] = 0;

	if (speed == 1500 || speed == -1500) data[0] |= 1;
	else if (speed == 2000 || speed == -2000) data[0] |= 2;
	else if (speed > -1000 && speed < 0) data[0] |= (-1000 / speed);
	else if (speed < 1000 && speed > 0) data[0] |= (1000 / speed);

	/* If not decoding, just change speed setting */
	if (atomic_read(&itv->decoding) > 0) {
		int got_sig = 0;

		/* Stop all DMA and decoding activity */
		ivtv_vapi(itv, CX2341X_DEC_PAUSE_PLAYBACK, 1, 0);

		/* Wait for any DMA to finish */
		prepare_to_wait(&itv->dma_waitq, &wait, TASK_INTERRUPTIBLE);
		while (itv->i_flags & IVTV_F_I_DMA) {
			got_sig = signal_pending(current);
			if (got_sig)
				break;
			got_sig = 0;
			schedule();
		}
		finish_wait(&itv->dma_waitq, &wait);
		if (got_sig)
			return -EINTR;

		/* Change Speed safely */
		ivtv_api(itv, CX2341X_DEC_SET_PLAYBACK_SPEED, 7, data);
		IVTV_DEBUG_INFO("Setting Speed to 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x\n",
				data[0], data[1], data[2], data[3], data[4], data[5], data[6]);
	}
	if (single_step) {
		speed = (speed < 0) ? -1 : 1;
		ivtv_vapi(itv, CX2341X_DEC_STEP_VIDEO, 1, 0);
	}
	itv->speed = speed;
	return 0;
}

static int ivtv_validate_speed(int cur_speed, int new_speed)
{
	int fact = new_speed < 0 ? -1 : 1;
	int s;

	if (cur_speed == 0)
		cur_speed = 1000;
	if (new_speed < 0)
		new_speed = -new_speed;
	if (cur_speed < 0)
		cur_speed = -cur_speed;

	if (cur_speed <= new_speed) {
		if (new_speed > 1500)
			return fact * 2000;
		if (new_speed > 1000)
			return fact * 1500;
	}
	else {
		if (new_speed >= 2000)
			return fact * 2000;
		if (new_speed >= 1500)
			return fact * 1500;
		if (new_speed >= 1000)
			return fact * 1000;
	}
	if (new_speed == 0)
		return 1000;
	if (new_speed == 1 || new_speed == 1000)
		return fact * new_speed;

	s = new_speed;
	new_speed = 1000 / new_speed;
	if (1000 / cur_speed == new_speed)
		new_speed += (cur_speed < s) ? -1 : 1;
	if (new_speed > 60) return 1000 / (fact * 60);
	return 1000 / (fact * new_speed);
}

static int ivtv_video_command(struct ivtv *itv, struct ivtv_open_id *id,
		struct video_command *vc, int try)
{
	struct ivtv_stream *s = &itv->streams[IVTV_DEC_STREAM_TYPE_MPG];

	if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
		return -EINVAL;

	switch (vc->cmd) {
	case VIDEO_CMD_PLAY: {
		vc->flags = 0;
		vc->play.speed = ivtv_validate_speed(itv->speed, vc->play.speed);
		if (vc->play.speed < 0)
			vc->play.format = VIDEO_PLAY_FMT_GOP;
		if (try) break;

		if (ivtv_set_output_mode(itv, OUT_MPG) != OUT_MPG)
			return -EBUSY;
		if (test_and_clear_bit(IVTV_F_I_DEC_PAUSED, &itv->i_flags)) {
			/* forces ivtv_set_speed to be called */
			itv->speed = 0;
		}
		return ivtv_start_decoding(id, vc->play.speed);
	}

	case VIDEO_CMD_STOP:
		vc->flags &= VIDEO_CMD_STOP_IMMEDIATELY|VIDEO_CMD_STOP_TO_BLACK;
		if (vc->flags & VIDEO_CMD_STOP_IMMEDIATELY)
			vc->stop.pts = 0;
		if (try) break;
		if (atomic_read(&itv->decoding) == 0)
			return 0;
		if (itv->output_mode != OUT_MPG)
			return -EBUSY;

		itv->output_mode = OUT_NONE;
		return ivtv_stop_v4l2_decode_stream(s, vc->flags, vc->stop.pts);

	case VIDEO_CMD_FREEZE:
		vc->flags &= VIDEO_CMD_FREEZE_TO_BLACK;
		if (try) break;
		if (itv->output_mode != OUT_MPG)
			return -EBUSY;
		if (atomic_read(&itv->decoding) > 0) {
			ivtv_vapi(itv, CX2341X_DEC_PAUSE_PLAYBACK, 1,
				(vc->flags & VIDEO_CMD_FREEZE_TO_BLACK) ? 1 : 0);
			set_bit(IVTV_F_I_DEC_PAUSED, &itv->i_flags);
		}
		break;

	case VIDEO_CMD_CONTINUE:
		vc->flags = 0;
		if (try) break;
		if (itv->output_mode != OUT_MPG)
			return -EBUSY;
		if (test_and_clear_bit(IVTV_F_I_DEC_PAUSED, &itv->i_flags)) {
			int speed = itv->speed;
			itv->speed = 0;
			return ivtv_start_decoding(id, speed);
		}
		break;

	default:
		return -EINVAL;
	}
	return 0;
}

static int ivtv_itvc(struct ivtv *itv, unsigned int cmd, void *arg)
{
	struct v4l2_register *regs = arg;
	unsigned long flags;
	volatile u8 __iomem *reg_start;

	if (!capable(CAP_SYS_ADMIN))
		return -EPERM;
	if (regs->reg >= IVTV_REG_OFFSET && regs->reg < IVTV_REG_OFFSET + IVTV_REG_SIZE)
		reg_start = itv->reg_mem - IVTV_REG_OFFSET;
	else if (itv->has_cx23415 && regs->reg >= IVTV_DECODER_OFFSET &&
			regs->reg < IVTV_DECODER_OFFSET + IVTV_DECODER_SIZE)
		reg_start = itv->dec_mem - IVTV_DECODER_OFFSET;
	else if (regs->reg >= 0 && regs->reg < IVTV_ENCODER_SIZE)
		reg_start = itv->enc_mem;
	else
		return -EINVAL;

	spin_lock_irqsave(&ivtv_cards_lock, flags);
	if (cmd == VIDIOC_DBG_G_REGISTER) {
		regs->val = readl(regs->reg + reg_start);
	} else {
		writel(regs->val, regs->reg + reg_start);
	}
	spin_unlock_irqrestore(&ivtv_cards_lock, flags);
	return 0;
}

static int ivtv_g_fmt_sliced_vbi_out(struct file *file, void *fh, struct v4l2_format *fmt)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
	struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;

	vbifmt->reserved[0] = 0;
	vbifmt->reserved[1] = 0;
	if (!(itv->v4l2_cap & V4L2_CAP_SLICED_VBI_OUTPUT))
		return -EINVAL;
	vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
	if (itv->is_60hz) {
		vbifmt->service_lines[0][21] = V4L2_SLICED_CAPTION_525;
		vbifmt->service_lines[1][21] = V4L2_SLICED_CAPTION_525;
	} else {
		vbifmt->service_lines[0][23] = V4L2_SLICED_WSS_625;
		vbifmt->service_lines[0][16] = V4L2_SLICED_VPS;
	}
	vbifmt->service_set = ivtv_get_service_set(vbifmt);
	return 0;
}

static int ivtv_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt)
{
	struct ivtv_open_id *id = fh;
	struct ivtv *itv = id->itv;
	struct v4l2_pix_format *pixfmt = &fmt->fmt.pix;

	pixfmt->width = itv->params.width;
	pixfmt->height = itv->params.height;
	pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
	pixfmt->field = V4L2_FIELD_INTERLACED;
	pixfmt->priv = 0;
	if (id->type == IVTV_ENC_STREAM_TYPE_YUV) {
		pixfmt->pixelformat = V4L2_PIX_FMT_HM12;
		/* YUV size is (Y=(h*w) + UV=(h*(w/2))) */
		pixfmt->sizeimage =
			pixfmt->height * pixfmt->width +
			pixfmt->height * (pixfmt->width / 2);
		pixfmt->bytesperline = 720;
	} else {
		pixfmt->pixelformat = V4L2_PIX_FMT_MPEG;
		pixfmt->sizeimage = 128 * 1024;
		pixfmt->bytesperline = 0;
	}
	return 0;
}

static int ivtv_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
	struct v4l2_vbi_format *vbifmt = &fmt->fmt.vbi;

	vbifmt->sampling_rate = 27000000;
	vbifmt->offset = 248;
	vbifmt->samples_per_line = itv->vbi.raw_decoder_line_size - 4;
	vbifmt->sample_format = V4L2_PIX_FMT_GREY;
	vbifmt->start[0] = itv->vbi.start[0];
	vbifmt->start[1] = itv->vbi.start[1];
	vbifmt->count[0] = vbifmt->count[1] = itv->vbi.count;
	vbifmt->flags = 0;
	vbifmt->reserved[0] = 0;
	vbifmt->reserved[1] = 0;
	return 0;
}

static int ivtv_g_fmt_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt)
{
	struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
	struct ivtv_open_id *id = fh;
	struct ivtv *itv = id->itv;

	vbifmt->reserved[0] = 0;
	vbifmt->reserved[1] = 0;
	vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;

	if (id->type == IVTV_DEC_STREAM_TYPE_VBI) {
		vbifmt->service_set = itv->is_50hz ? V4L2_SLICED_VBI_625 :
			V4L2_SLICED_VBI_525;
		ivtv_expand_service_set(vbifmt, itv->is_50hz);
		return 0;
	}

	itv->video_dec_func(itv, VIDIOC_G_FMT, fmt);
	vbifmt->service_set = ivtv_get_service_set(vbifmt);
	return 0;
}

static int ivtv_g_fmt_vid_out(struct file *file, void *fh, struct v4l2_format *fmt)
{
	struct ivtv_open_id *id = fh;
	struct ivtv *itv = id->itv;
	struct v4l2_pix_format *pixfmt = &fmt->fmt.pix;

	if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
		return -EINVAL;
	pixfmt->width = itv->main_rect.width;
	pixfmt->height = itv->main_rect.height;
	pixfmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
	pixfmt->field = V4L2_FIELD_INTERLACED;
	pixfmt->priv = 0;
	if (id->type == IVTV_DEC_STREAM_TYPE_YUV) {
		switch (itv->yuv_info.lace_mode & IVTV_YUV_MODE_MASK) {
		case IVTV_YUV_MODE_INTERLACED:
			pixfmt->field = (itv->yuv_info.lace_mode & IVTV_YUV_SYNC_MASK) ?
				V4L2_FIELD_INTERLACED_BT : V4L2_FIELD_INTERLACED_TB;
			break;
		case IVTV_YUV_MODE_PROGRESSIVE:
			pixfmt->field = V4L2_FIELD_NONE;
			break;
		default:
			pixfmt->field = V4L2_FIELD_ANY;
			break;
		}
		pixfmt->pixelformat = V4L2_PIX_FMT_HM12;
		pixfmt->bytesperline = 720;
		pixfmt->width = itv->yuv_info.v4l2_src_w;
		pixfmt->height = itv->yuv_info.v4l2_src_h;
		/* YUV size is (Y=(h*w) + UV=(h*(w/2))) */
		pixfmt->sizeimage =
			1080 * ((pixfmt->height + 31) & ~31);
	} else {
		pixfmt->pixelformat = V4L2_PIX_FMT_MPEG;
		pixfmt->sizeimage = 128 * 1024;
		pixfmt->bytesperline = 0;
	}
	return 0;
}

static int ivtv_g_fmt_vid_out_overlay(struct file *file, void *fh, struct v4l2_format *fmt)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
	struct v4l2_window *winfmt = &fmt->fmt.win;

	if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
		return -EINVAL;
	winfmt->chromakey = itv->osd_chroma_key;
	winfmt->global_alpha = itv->osd_global_alpha;
	winfmt->field = V4L2_FIELD_INTERLACED;
	winfmt->clips = NULL;
	winfmt->clipcount = 0;
	winfmt->bitmap = NULL;
	winfmt->w.top = winfmt->w.left = 0;
	winfmt->w.width = itv->osd_rect.width;
	winfmt->w.height = itv->osd_rect.height;
	return 0;
}

static int ivtv_try_fmt_sliced_vbi_out(struct file *file, void *fh, struct v4l2_format *fmt)
{
	return ivtv_g_fmt_sliced_vbi_out(file, fh, fmt);
}

static int ivtv_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt)
{
	struct ivtv_open_id *id = fh;
	struct ivtv *itv = id->itv;
	int w = fmt->fmt.pix.width;
	int h = fmt->fmt.pix.height;

	w = min(w, 720);
	w = max(w, 1);
	h = min(h, itv->is_50hz ? 576 : 480);
	h = max(h, 2);
	ivtv_g_fmt_vid_cap(file, fh, fmt);
	fmt->fmt.pix.width = w;
	fmt->fmt.pix.height = h;
	return 0;
}

static int ivtv_try_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt)
{
	return ivtv_g_fmt_vbi_cap(file, fh, fmt);
}

static int ivtv_try_fmt_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt)
{
	struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
	struct ivtv_open_id *id = fh;
	struct ivtv *itv = id->itv;

	if (id->type == IVTV_DEC_STREAM_TYPE_VBI)
		return ivtv_g_fmt_sliced_vbi_cap(file, fh, fmt);

	/* set sliced VBI capture format */
	vbifmt->io_size = sizeof(struct v4l2_sliced_vbi_data) * 36;
	vbifmt->reserved[0] = 0;
	vbifmt->reserved[1] = 0;

	if (vbifmt->service_set)
		ivtv_expand_service_set(vbifmt, itv->is_50hz);
	check_service_set(vbifmt, itv->is_50hz);
	vbifmt->service_set = ivtv_get_service_set(vbifmt);
	return 0;
}

static int ivtv_try_fmt_vid_out(struct file *file, void *fh, struct v4l2_format *fmt)
{
	struct ivtv_open_id *id = fh;
	s32 w, h;
	int field;
	int ret;

	w = fmt->fmt.pix.width;
	h = fmt->fmt.pix.height;
	field = fmt->fmt.pix.field;
	ret = ivtv_g_fmt_vid_out(file, fh, fmt);
	fmt->fmt.pix.width = w;
	fmt->fmt.pix.height = h;
	if (!ret && id->type == IVTV_DEC_STREAM_TYPE_YUV) {
		fmt->fmt.pix.field = field;
		if (fmt->fmt.pix.width < 2)
			fmt->fmt.pix.width = 2;
		if (fmt->fmt.pix.width > 720)
			fmt->fmt.pix.width = 720;
		if (fmt->fmt.pix.height < 2)
			fmt->fmt.pix.height = 2;
		if (fmt->fmt.pix.height > 576)
			fmt->fmt.pix.height = 576;
	}
	return ret;
}

static int ivtv_try_fmt_vid_out_overlay(struct file *file, void *fh, struct v4l2_format *fmt)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
	u32 chromakey = fmt->fmt.win.chromakey;
	u8 global_alpha = fmt->fmt.win.global_alpha;

	if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
		return -EINVAL;
	ivtv_g_fmt_vid_out_overlay(file, fh, fmt);
	fmt->fmt.win.chromakey = chromakey;
	fmt->fmt.win.global_alpha = global_alpha;
	return 0;
}

static int ivtv_s_fmt_sliced_vbi_out(struct file *file, void *fh, struct v4l2_format *fmt)
{
	return ivtv_g_fmt_sliced_vbi_out(file, fh, fmt);
}

static int ivtv_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *fmt)
{
	struct ivtv_open_id *id = fh;
	struct ivtv *itv = id->itv;
	struct cx2341x_mpeg_params *p = &itv->params;
	int w = fmt->fmt.pix.width;
	int h = fmt->fmt.pix.height;
	int ret = ivtv_try_fmt_vid_cap(file, fh, fmt);

	if (ret)
		return ret;

	if (p->width == w && p->height == h)
		return 0;

	if (atomic_read(&itv->capturing) > 0)
		return -EBUSY;

	p->width = w;
	p->height = h;
	if (w != 720 || h != (itv->is_50hz ? 576 : 480))
		p->video_temporal_filter = 0;
	else
		p->video_temporal_filter = 8;
	if (p->video_encoding == V4L2_MPEG_VIDEO_ENCODING_MPEG_1)
		fmt->fmt.pix.width /= 2;
	itv->video_dec_func(itv, VIDIOC_S_FMT, fmt);
	return ivtv_g_fmt_vid_cap(file, fh, fmt);
}

static int ivtv_s_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	itv->vbi.sliced_in->service_set = 0;
	itv->video_dec_func(itv, VIDIOC_S_FMT, &itv->vbi.in);
	return ivtv_g_fmt_vbi_cap(file, fh, fmt);
}

static int ivtv_s_fmt_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_format *fmt)
{
	struct v4l2_sliced_vbi_format *vbifmt = &fmt->fmt.sliced;
	struct ivtv_open_id *id = fh;
	struct ivtv *itv = id->itv;
	int ret = ivtv_try_fmt_sliced_vbi_cap(file, fh, fmt);

	if (ret || id->type == IVTV_DEC_STREAM_TYPE_VBI)
		return ret;

	if (check_service_set(vbifmt, itv->is_50hz) == 0)
		return -EINVAL;
	if (atomic_read(&itv->capturing) > 0)
		return -EBUSY;
	itv->video_dec_func(itv, VIDIOC_S_FMT, fmt);
	memcpy(itv->vbi.sliced_in, vbifmt, sizeof(*itv->vbi.sliced_in));
	return 0;
}

static int ivtv_s_fmt_vid_out(struct file *file, void *fh, struct v4l2_format *fmt)
{
	struct ivtv_open_id *id = fh;
	struct ivtv *itv = id->itv;
	struct yuv_playback_info *yi = &itv->yuv_info;
	int ret = ivtv_try_fmt_vid_out(file, fh, fmt);

	if (ret)
		return ret;

	if (id->type != IVTV_DEC_STREAM_TYPE_YUV)
		return 0;

	/* Return now if we already have some frame data */
	if (yi->stream_size)
		return -EBUSY;

	yi->v4l2_src_w = fmt->fmt.pix.width;
	yi->v4l2_src_h = fmt->fmt.pix.height;

	switch (fmt->fmt.pix.field) {
	case V4L2_FIELD_NONE:
		yi->lace_mode = IVTV_YUV_MODE_PROGRESSIVE;
		break;
	case V4L2_FIELD_ANY:
		yi->lace_mode = IVTV_YUV_MODE_AUTO;
		break;
	case V4L2_FIELD_INTERLACED_BT:
		yi->lace_mode =
			IVTV_YUV_MODE_INTERLACED|IVTV_YUV_SYNC_ODD;
		break;
	case V4L2_FIELD_INTERLACED_TB:
	default:
		yi->lace_mode = IVTV_YUV_MODE_INTERLACED;
		break;
	}
	yi->lace_sync_field = (yi->lace_mode & IVTV_YUV_SYNC_MASK) == IVTV_YUV_SYNC_EVEN ? 0 : 1;

	if (test_bit(IVTV_F_I_DEC_YUV, &itv->i_flags))
		itv->dma_data_req_size =
			1080 * ((yi->v4l2_src_h + 31) & ~31);

	/* Force update of yuv registers */
	yi->yuv_forced_update = 1;
	return 0;
}

static int ivtv_s_fmt_vid_out_overlay(struct file *file, void *fh, struct v4l2_format *fmt)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
	int ret = ivtv_try_fmt_vid_out_overlay(file, fh, fmt);

	if (ret == 0) {
		itv->osd_chroma_key = fmt->fmt.win.chromakey;
		itv->osd_global_alpha = fmt->fmt.win.global_alpha;
		ivtv_set_osd_alpha(itv);
	}
	return ret;
}

static int ivtv_g_chip_ident(struct file *file, void *fh, struct v4l2_chip_ident *chip)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	chip->ident = V4L2_IDENT_NONE;
	chip->revision = 0;
	if (chip->match_type == V4L2_CHIP_MATCH_HOST) {
		if (v4l2_chip_match_host(chip->match_type, chip->match_chip))
			chip->ident = itv->has_cx23415 ? V4L2_IDENT_CX23415 : V4L2_IDENT_CX23416;
		return 0;
	}
	if (chip->match_type == V4L2_CHIP_MATCH_I2C_DRIVER)
		return ivtv_i2c_id(itv, chip->match_chip, VIDIOC_G_CHIP_IDENT, chip);
	if (chip->match_type == V4L2_CHIP_MATCH_I2C_ADDR)
		return ivtv_call_i2c_client(itv, chip->match_chip, VIDIOC_G_CHIP_IDENT, chip);
	return -EINVAL;
}

static int ivtv_g_register(struct file *file, void *fh, struct v4l2_register *reg)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	if (v4l2_chip_match_host(reg->match_type, reg->match_chip))
		return ivtv_itvc(itv, VIDIOC_DBG_G_REGISTER, reg);
	if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER)
		return ivtv_i2c_id(itv, reg->match_chip, VIDIOC_DBG_G_REGISTER, reg);
	return ivtv_call_i2c_client(itv, reg->match_chip, VIDIOC_DBG_G_REGISTER, reg);
}

static int ivtv_s_register(struct file *file, void *fh, struct v4l2_register *reg)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	if (v4l2_chip_match_host(reg->match_type, reg->match_chip))
		return ivtv_itvc(itv, VIDIOC_DBG_S_REGISTER, reg);
	if (reg->match_type == V4L2_CHIP_MATCH_I2C_DRIVER)
		return ivtv_i2c_id(itv, reg->match_chip, VIDIOC_DBG_S_REGISTER, reg);
	return ivtv_call_i2c_client(itv, reg->match_chip, VIDIOC_DBG_S_REGISTER, reg);
}

static int ivtv_g_priority(struct file *file, void *fh, enum v4l2_priority *p)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	*p = v4l2_prio_max(&itv->prio);

	return 0;
}

static int ivtv_s_priority(struct file *file, void *fh, enum v4l2_priority prio)
{
	struct ivtv_open_id *id = fh;
	struct ivtv *itv = id->itv;

	return v4l2_prio_change(&itv->prio, &id->prio, prio);
}

static int ivtv_querycap(struct file *file, void *fh, struct v4l2_capability *vcap)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	memset(vcap, 0, sizeof(*vcap));
	strlcpy(vcap->driver, IVTV_DRIVER_NAME, sizeof(vcap->driver));
	strlcpy(vcap->card, itv->card_name, sizeof(vcap->card));
	strlcpy(vcap->bus_info, pci_name(itv->dev), sizeof(vcap->bus_info));
	vcap->version = IVTV_DRIVER_VERSION; 	    /* version */
	vcap->capabilities = itv->v4l2_cap; 	    /* capabilities */
	/* reserved.. must set to 0! */
	vcap->reserved[0] = vcap->reserved[1] =
		vcap->reserved[2] = vcap->reserved[3] = 0;
	return 0;
}

static int ivtv_enumaudio(struct file *file, void *fh, struct v4l2_audio *vin)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	return ivtv_get_audio_input(itv, vin->index, vin);
}

static int ivtv_g_audio(struct file *file, void *fh, struct v4l2_audio *vin)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	vin->index = itv->audio_input;
	return ivtv_get_audio_input(itv, vin->index, vin);
}

static int ivtv_s_audio(struct file *file, void *fh, struct v4l2_audio *vout)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	if (vout->index >= itv->nof_audio_inputs)
		return -EINVAL;

	itv->audio_input = vout->index;
	ivtv_audio_set_io(itv);

	return 0;
}

static int ivtv_enumaudout(struct file *file, void *fh, struct v4l2_audioout *vin)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	/* set it to defaults from our table */
	return ivtv_get_audio_output(itv, vin->index, vin);
}

static int ivtv_g_audout(struct file *file, void *fh, struct v4l2_audioout *vin)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	vin->index = 0;
	return ivtv_get_audio_output(itv, vin->index, vin);
}

static int ivtv_s_audout(struct file *file, void *fh, struct v4l2_audioout *vout)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	return ivtv_get_audio_output(itv, vout->index, vout);
}

static int ivtv_enum_input(struct file *file, void *fh, struct v4l2_input *vin)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	/* set it to defaults from our table */
	return ivtv_get_input(itv, vin->index, vin);
}

static int ivtv_enum_output(struct file *file, void *fh, struct v4l2_output *vout)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	return ivtv_get_output(itv, vout->index, vout);
}

static int ivtv_cropcap(struct file *file, void *fh, struct v4l2_cropcap *cropcap)
{
	struct ivtv_open_id *id = fh;
	struct ivtv *itv = id->itv;
	struct yuv_playback_info *yi = &itv->yuv_info;
	int streamtype;

	streamtype = id->type;

	if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
		return -EINVAL;
	cropcap->bounds.top = cropcap->bounds.left = 0;
	cropcap->bounds.width = 720;
	if (cropcap->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
		cropcap->bounds.height = itv->is_50hz ? 576 : 480;
		cropcap->pixelaspect.numerator = itv->is_50hz ? 59 : 10;
		cropcap->pixelaspect.denominator = itv->is_50hz ? 54 : 11;
	} else if (streamtype == IVTV_DEC_STREAM_TYPE_YUV) {
		if (yi->track_osd) {
			cropcap->bounds.width = yi->osd_full_w;
			cropcap->bounds.height = yi->osd_full_h;
		} else {
			cropcap->bounds.width = 720;
			cropcap->bounds.height =
					itv->is_out_50hz ? 576 : 480;
		}
		cropcap->pixelaspect.numerator = itv->is_out_50hz ? 59 : 10;
		cropcap->pixelaspect.denominator = itv->is_out_50hz ? 54 : 11;
	} else {
		cropcap->bounds.height = itv->is_out_50hz ? 576 : 480;
		cropcap->pixelaspect.numerator = itv->is_out_50hz ? 59 : 10;
		cropcap->pixelaspect.denominator = itv->is_out_50hz ? 54 : 11;
	}
	cropcap->defrect = cropcap->bounds;
	return 0;
}

static int ivtv_s_crop(struct file *file, void *fh, struct v4l2_crop *crop)
{
	struct ivtv_open_id *id = fh;
	struct ivtv *itv = id->itv;
	struct yuv_playback_info *yi = &itv->yuv_info;
	int streamtype;

	streamtype = id->type;

	if (ivtv_debug & IVTV_DBGFLG_IOCTL) {
		printk(KERN_INFO "ivtv%d ioctl: ", itv->num);
		/* Should be replaced */
		/* v4l_printk_ioctl(VIDIOC_S_CROP); */
	}

	if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
	    (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) {
		if (streamtype == IVTV_DEC_STREAM_TYPE_YUV) {
			yi->main_rect = crop->c;
			return 0;
		} else {
			if (!ivtv_vapi(itv, CX2341X_OSD_SET_FRAMEBUFFER_WINDOW, 4,
				crop->c.width, crop->c.height, crop->c.left, crop->c.top)) {
				itv->main_rect = crop->c;
				return 0;
			}
		}
		return -EINVAL;
	}
	return -EINVAL;
}

static int ivtv_g_crop(struct file *file, void *fh, struct v4l2_crop *crop)
{
	struct ivtv_open_id *id = fh;
	struct ivtv *itv = id->itv;
	struct yuv_playback_info *yi = &itv->yuv_info;
	int streamtype;

	streamtype = id->type;

	if (crop->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
	    (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) {
		if (streamtype == IVTV_DEC_STREAM_TYPE_YUV)
			crop->c = yi->main_rect;
		else
			crop->c = itv->main_rect;
		return 0;
	}
	return -EINVAL;
}

static int ivtv_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *fmt)
{
	static struct v4l2_fmtdesc formats[] = {
		{ 0, 0, 0,
		  "HM12 (YUV 4:2:0)", V4L2_PIX_FMT_HM12,
		  { 0, 0, 0, 0 }
		},
		{ 1, 0, V4L2_FMT_FLAG_COMPRESSED,
		  "MPEG", V4L2_PIX_FMT_MPEG,
		  { 0, 0, 0, 0 }
		}
	};
	enum v4l2_buf_type type = fmt->type;

	if (fmt->index > 1)
		return -EINVAL;

	*fmt = formats[fmt->index];
	fmt->type = type;
	return 0;
}

static int ivtv_enum_fmt_vid_out(struct file *file, void *fh, struct v4l2_fmtdesc *fmt)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	static struct v4l2_fmtdesc formats[] = {
		{ 0, 0, 0,
		  "HM12 (YUV 4:2:0)", V4L2_PIX_FMT_HM12,
		  { 0, 0, 0, 0 }
		},
		{ 1, 0, V4L2_FMT_FLAG_COMPRESSED,
		  "MPEG", V4L2_PIX_FMT_MPEG,
		  { 0, 0, 0, 0 }
		}
	};
	enum v4l2_buf_type type = fmt->type;

	if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
		return -EINVAL;

	if (fmt->index > 1)
		return -EINVAL;

	*fmt = formats[fmt->index];
	fmt->type = type;

	return 0;
}

static int ivtv_g_input(struct file *file, void *fh, unsigned int *i)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	*i = itv->active_input;

	return 0;
}

int ivtv_s_input(struct file *file, void *fh, unsigned int inp)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	if (inp < 0 || inp >= itv->nof_inputs)
		return -EINVAL;

	if (inp == itv->active_input) {
		IVTV_DEBUG_INFO("Input unchanged\n");
		return 0;
	}

	if (atomic_read(&itv->capturing) > 0) {
		return -EBUSY;
	}

	IVTV_DEBUG_INFO("Changing input from %d to %d\n",
			itv->active_input, inp);

	itv->active_input = inp;
	/* Set the audio input to whatever is appropriate for the
	   input type. */
	itv->audio_input = itv->card->video_inputs[inp].audio_index;

	/* prevent others from messing with the streams until
	   we're finished changing inputs. */
	ivtv_mute(itv);
	ivtv_video_set_io(itv);
	ivtv_audio_set_io(itv);
	ivtv_unmute(itv);

	return 0;
}

static int ivtv_g_output(struct file *file, void *fh, unsigned int *i)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
		return -EINVAL;

	*i = itv->active_output;

	return 0;
}

static int ivtv_s_output(struct file *file, void *fh, unsigned int outp)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
	struct v4l2_routing route;

	if (outp >= itv->card->nof_outputs)
		return -EINVAL;

	if (outp == itv->active_output) {
		IVTV_DEBUG_INFO("Output unchanged\n");
		return 0;
	}
	IVTV_DEBUG_INFO("Changing output from %d to %d\n",
		   itv->active_output, outp);

	itv->active_output = outp;
	route.input = SAA7127_INPUT_TYPE_NORMAL;
	route.output = itv->card->video_outputs[outp].video_output;
	ivtv_saa7127(itv, VIDIOC_INT_S_VIDEO_ROUTING, &route);

	return 0;
}

static int ivtv_g_frequency(struct file *file, void *fh, struct v4l2_frequency *vf)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	if (vf->tuner != 0)
		return -EINVAL;

	ivtv_call_i2c_clients(itv, VIDIOC_G_FREQUENCY, vf);
	return 0;
}

int ivtv_s_frequency(struct file *file, void *fh, struct v4l2_frequency *vf)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	if (vf->tuner != 0)
		return -EINVAL;

	ivtv_mute(itv);
	IVTV_DEBUG_INFO("v4l2 ioctl: set frequency %d\n", vf->frequency);
	ivtv_call_i2c_clients(itv, VIDIOC_S_FREQUENCY, vf);
	ivtv_unmute(itv);
	return 0;
}

static int ivtv_g_std(struct file *file, void *fh, v4l2_std_id *std)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	*std = itv->std;
	return 0;
}

int ivtv_s_std(struct file *file, void *fh, v4l2_std_id *std)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
	struct yuv_playback_info *yi = &itv->yuv_info;

	if ((*std & V4L2_STD_ALL) == 0)
		return -EINVAL;

	if (*std == itv->std)
		return 0;

	if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags) ||
	    atomic_read(&itv->capturing) > 0 ||
	    atomic_read(&itv->decoding) > 0) {
		/* Switching standard would turn off the radio or mess
		   with already running streams, prevent that by
		   returning EBUSY. */
		return -EBUSY;
	}

	itv->std = *std;
	itv->is_60hz = (*std & V4L2_STD_525_60) ? 1 : 0;
	itv->params.is_50hz = itv->is_50hz = !itv->is_60hz;
	itv->params.width = 720;
	itv->params.height = itv->is_50hz ? 576 : 480;
	itv->vbi.count = itv->is_50hz ? 18 : 12;
	itv->vbi.start[0] = itv->is_50hz ? 6 : 10;
	itv->vbi.start[1] = itv->is_50hz ? 318 : 273;

	if (itv->hw_flags & IVTV_HW_CX25840)
		itv->vbi.sliced_decoder_line_size = itv->is_60hz ? 272 : 284;

	IVTV_DEBUG_INFO("Switching standard to %llx.\n", (unsigned long long)itv->std);

	/* Tuner */
	ivtv_call_i2c_clients(itv, VIDIOC_S_STD, &itv->std);

	if (itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT) {
		/* set display standard */
		itv->std_out = *std;
		itv->is_out_60hz = itv->is_60hz;
		itv->is_out_50hz = itv->is_50hz;
		ivtv_call_i2c_clients(itv, VIDIOC_INT_S_STD_OUTPUT, &itv->std_out);
		ivtv_vapi(itv, CX2341X_DEC_SET_STANDARD, 1, itv->is_out_50hz);
		itv->main_rect.left = itv->main_rect.top = 0;
		itv->main_rect.width = 720;
		itv->main_rect.height = itv->params.height;
		ivtv_vapi(itv, CX2341X_OSD_SET_FRAMEBUFFER_WINDOW, 4,
			720, itv->main_rect.height, 0, 0);
		yi->main_rect = itv->main_rect;
		if (!itv->osd_info) {
			yi->osd_full_w = 720;
			yi->osd_full_h = itv->is_out_50hz ? 576 : 480;
		}
	}
	return 0;
}

static int ivtv_s_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
{
	struct ivtv_open_id *id = fh;
	struct ivtv *itv = id->itv;

	if (vt->index != 0)
		return -EINVAL;

	ivtv_call_i2c_clients(itv, VIDIOC_S_TUNER, vt);

	return 0;
}

static int ivtv_g_tuner(struct file *file, void *fh, struct v4l2_tuner *vt)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	if (vt->index != 0)
		return -EINVAL;

	memset(vt, 0, sizeof(*vt));
	ivtv_call_i2c_clients(itv, VIDIOC_G_TUNER, vt);

	if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags)) {
		strlcpy(vt->name, "ivtv Radio Tuner", sizeof(vt->name));
		vt->type = V4L2_TUNER_RADIO;
	} else {
		strlcpy(vt->name, "ivtv TV Tuner", sizeof(vt->name));
		vt->type = V4L2_TUNER_ANALOG_TV;
	}

	return 0;
}

static int ivtv_g_sliced_vbi_cap(struct file *file, void *fh, struct v4l2_sliced_vbi_cap *cap)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
	int set = itv->is_50hz ? V4L2_SLICED_VBI_625 : V4L2_SLICED_VBI_525;
	int f, l;
	enum v4l2_buf_type type = cap->type;

	memset(cap, 0, sizeof(*cap));
	cap->type = type;
	if (type == V4L2_BUF_TYPE_SLICED_VBI_CAPTURE) {
		for (f = 0; f < 2; f++) {
			for (l = 0; l < 24; l++) {
				if (valid_service_line(f, l, itv->is_50hz))
					cap->service_lines[f][l] = set;
			}
		}
		return 0;
	}
	if (type == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT) {
		if (!(itv->v4l2_cap & V4L2_CAP_SLICED_VBI_OUTPUT))
			return -EINVAL;
		if (itv->is_60hz) {
			cap->service_lines[0][21] = V4L2_SLICED_CAPTION_525;
			cap->service_lines[1][21] = V4L2_SLICED_CAPTION_525;
		} else {
			cap->service_lines[0][23] = V4L2_SLICED_WSS_625;
			cap->service_lines[0][16] = V4L2_SLICED_VPS;
		}
		return 0;
	}
	return -EINVAL;
}

static int ivtv_g_enc_index(struct file *file, void *fh, struct v4l2_enc_idx *idx)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
	struct v4l2_enc_idx_entry *e = idx->entry;
	int entries;
	int i;

	entries = (itv->pgm_info_write_idx + IVTV_MAX_PGM_INDEX - itv->pgm_info_read_idx) %
				IVTV_MAX_PGM_INDEX;
	if (entries > V4L2_ENC_IDX_ENTRIES)
		entries = V4L2_ENC_IDX_ENTRIES;
	idx->entries = 0;
	for (i = 0; i < entries; i++) {
		*e = itv->pgm_info[(itv->pgm_info_read_idx + i) % IVTV_MAX_PGM_INDEX];
		if ((e->flags & V4L2_ENC_IDX_FRAME_MASK) <= V4L2_ENC_IDX_FRAME_B) {
			idx->entries++;
			e++;
		}
	}
	itv->pgm_info_read_idx = (itv->pgm_info_read_idx + idx->entries) % IVTV_MAX_PGM_INDEX;
	return 0;
}

static int ivtv_encoder_cmd(struct file *file, void *fh, struct v4l2_encoder_cmd *enc)
{
	struct ivtv_open_id *id = fh;
	struct ivtv *itv = id->itv;

	memset(&enc->raw, 0, sizeof(enc->raw));

	switch (enc->cmd) {
	case V4L2_ENC_CMD_START:
		IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
		enc->flags = 0;
		return ivtv_start_capture(id);

	case V4L2_ENC_CMD_STOP:
		IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
		enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
		ivtv_stop_capture(id, enc->flags & V4L2_ENC_CMD_STOP_AT_GOP_END);
		return 0;

	case V4L2_ENC_CMD_PAUSE:
		IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
		enc->flags = 0;

		if (!atomic_read(&itv->capturing))
			return -EPERM;
		if (test_and_set_bit(IVTV_F_I_ENC_PAUSED, &itv->i_flags))
			return 0;

		ivtv_mute(itv);
		ivtv_vapi(itv, CX2341X_ENC_PAUSE_ENCODER, 1, 0);
		break;

	case V4L2_ENC_CMD_RESUME:
		IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
		enc->flags = 0;

		if (!atomic_read(&itv->capturing))
			return -EPERM;

		if (!test_and_clear_bit(IVTV_F_I_ENC_PAUSED, &itv->i_flags))
			return 0;

		ivtv_vapi(itv, CX2341X_ENC_PAUSE_ENCODER, 1, 1);
		ivtv_unmute(itv);
		break;
	default:
		IVTV_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
		return -EINVAL;
	}

	return 0;
}

static int ivtv_try_encoder_cmd(struct file *file, void *fh, struct v4l2_encoder_cmd *enc)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	memset(&enc->raw, 0, sizeof(enc->raw));

	switch (enc->cmd) {
	case V4L2_ENC_CMD_START:
		IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_START\n");
		enc->flags = 0;
		return 0;

	case V4L2_ENC_CMD_STOP:
		IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_STOP\n");
		enc->flags &= V4L2_ENC_CMD_STOP_AT_GOP_END;
		return 0;

	case V4L2_ENC_CMD_PAUSE:
		IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_PAUSE\n");
		enc->flags = 0;
		return 0;

	case V4L2_ENC_CMD_RESUME:
		IVTV_DEBUG_IOCTL("V4L2_ENC_CMD_RESUME\n");
		enc->flags = 0;
		return 0;
	default:
		IVTV_DEBUG_IOCTL("Unknown cmd %d\n", enc->cmd);
		return -EINVAL;
	}
}

static int ivtv_g_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *fb)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
	u32 data[CX2341X_MBOX_MAX_DATA];
	struct yuv_playback_info *yi = &itv->yuv_info;

	int pixfmt;
	static u32 pixel_format[16] = {
		V4L2_PIX_FMT_PAL8, /* Uses a 256-entry RGB colormap */
		V4L2_PIX_FMT_RGB565,
		V4L2_PIX_FMT_RGB555,
		V4L2_PIX_FMT_RGB444,
		V4L2_PIX_FMT_RGB32,
		0,
		0,
		0,
		V4L2_PIX_FMT_PAL8, /* Uses a 256-entry YUV colormap */
		V4L2_PIX_FMT_YUV565,
		V4L2_PIX_FMT_YUV555,
		V4L2_PIX_FMT_YUV444,
		V4L2_PIX_FMT_YUV32,
		0,
		0,
		0,
	};

	memset(fb, 0, sizeof(*fb));

	if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT_OVERLAY))
		return -EINVAL;

	fb->capability = V4L2_FBUF_CAP_EXTERNOVERLAY | V4L2_FBUF_CAP_CHROMAKEY |
		V4L2_FBUF_CAP_GLOBAL_ALPHA;

	ivtv_vapi_result(itv, data, CX2341X_OSD_GET_STATE, 0);
	data[0] |= (read_reg(0x2a00) >> 7) & 0x40;
	pixfmt = (data[0] >> 3) & 0xf;

	fb->fmt.pixelformat = pixel_format[pixfmt];
	fb->fmt.width = itv->osd_rect.width;
	fb->fmt.height = itv->osd_rect.height;
	fb->base = (void *)itv->osd_video_pbase;

	if (itv->osd_chroma_key_state)
		fb->flags |= V4L2_FBUF_FLAG_CHROMAKEY;

	if (itv->osd_global_alpha_state)
		fb->flags |= V4L2_FBUF_FLAG_GLOBAL_ALPHA;

	pixfmt &= 7;

	/* no local alpha for RGB565 or unknown formats */
	if (pixfmt == 1 || pixfmt > 4)
		return 0;

	/* 16-bit formats have inverted local alpha */
	if (pixfmt == 2 || pixfmt == 3)
		fb->capability |= V4L2_FBUF_CAP_LOCAL_INV_ALPHA;
	else
		fb->capability |= V4L2_FBUF_CAP_LOCAL_ALPHA;

	if (itv->osd_local_alpha_state) {
		/* 16-bit formats have inverted local alpha */
		if (pixfmt == 2 || pixfmt == 3)
			fb->flags |= V4L2_FBUF_FLAG_LOCAL_INV_ALPHA;
		else
			fb->flags |= V4L2_FBUF_FLAG_LOCAL_ALPHA;
	}
	if (yi->track_osd)
		fb->flags |= V4L2_FBUF_FLAG_OVERLAY;

	return 0;
}

static int ivtv_s_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *fb)
{
	struct ivtv_open_id *id = fh;
	struct ivtv *itv = id->itv;
	struct yuv_playback_info *yi = &itv->yuv_info;

	if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT_OVERLAY))
		return -EINVAL;

	itv->osd_global_alpha_state = (fb->flags & V4L2_FBUF_FLAG_GLOBAL_ALPHA) != 0;
	itv->osd_local_alpha_state =
		(fb->flags & (V4L2_FBUF_FLAG_LOCAL_ALPHA|V4L2_FBUF_FLAG_LOCAL_INV_ALPHA)) != 0;
	itv->osd_chroma_key_state = (fb->flags & V4L2_FBUF_FLAG_CHROMAKEY) != 0;
	ivtv_set_osd_alpha(itv);
	yi->track_osd = (fb->flags & V4L2_FBUF_FLAG_OVERLAY) != 0;

	return 0;
}

static int ivtv_overlay(struct file *file, void *fh, unsigned int on)
{
	struct ivtv_open_id *id = fh;
	struct ivtv *itv = id->itv;

	if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT_OVERLAY))
		return -EINVAL;

	ivtv_vapi(itv, CX2341X_OSD_SET_STATE, 1, on != 0);

	return 0;
}

static int ivtv_log_status(struct file *file, void *fh)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;
	u32 data[CX2341X_MBOX_MAX_DATA];

	int has_output = itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT;
	struct v4l2_input vidin;
	struct v4l2_audio audin;
	int i;

	IVTV_INFO("=================  START STATUS CARD #%d  =================\n", itv->num);
	IVTV_INFO("Version: %s Card: %s\n", IVTV_VERSION, itv->card_name);
	if (itv->hw_flags & IVTV_HW_TVEEPROM) {
		struct tveeprom tv;

		ivtv_read_eeprom(itv, &tv);
	}
	ivtv_call_i2c_clients(itv, VIDIOC_LOG_STATUS, NULL);
	ivtv_get_input(itv, itv->active_input, &vidin);
	ivtv_get_audio_input(itv, itv->audio_input, &audin);
	IVTV_INFO("Video Input:  %s\n", vidin.name);
	IVTV_INFO("Audio Input:  %s%s\n", audin.name,
		(itv->dualwatch_stereo_mode & ~0x300) == 0x200 ? " (Bilingual)" : "");
	if (has_output) {
		struct v4l2_output vidout;
		struct v4l2_audioout audout;
		int mode = itv->output_mode;
		static const char * const output_modes[5] = {
			"None",
			"MPEG Streaming",
			"YUV Streaming",
			"YUV Frames",
			"Passthrough",
		};
		static const char * const audio_modes[5] = {
			"Stereo",
			"Left",
			"Right",
			"Mono",
			"Swapped"
		};
		static const char * const alpha_mode[4] = {
			"None",
			"Global",
			"Local",
			"Global and Local"
		};
		static const char * const pixel_format[16] = {
			"ARGB Indexed",
			"RGB 5:6:5",
			"ARGB 1:5:5:5",
			"ARGB 1:4:4:4",
			"ARGB 8:8:8:8",
			"5",
			"6",
			"7",
			"AYUV Indexed",
			"YUV 5:6:5",
			"AYUV 1:5:5:5",
			"AYUV 1:4:4:4",
			"AYUV 8:8:8:8",
			"13",
			"14",
			"15",
		};

		ivtv_get_output(itv, itv->active_output, &vidout);
		ivtv_get_audio_output(itv, 0, &audout);
		IVTV_INFO("Video Output: %s\n", vidout.name);
		IVTV_INFO("Audio Output: %s (Stereo/Bilingual: %s/%s)\n", audout.name,
			audio_modes[itv->audio_stereo_mode],
			audio_modes[itv->audio_bilingual_mode]);
		if (mode < 0 || mode > OUT_PASSTHROUGH)
			mode = OUT_NONE;
		IVTV_INFO("Output Mode:  %s\n", output_modes[mode]);
		ivtv_vapi_result(itv, data, CX2341X_OSD_GET_STATE, 0);
		data[0] |= (read_reg(0x2a00) >> 7) & 0x40;
		IVTV_INFO("Overlay:      %s, Alpha: %s, Pixel Format: %s\n",
			data[0] & 1 ? "On" : "Off",
			alpha_mode[(data[0] >> 1) & 0x3],
			pixel_format[(data[0] >> 3) & 0xf]);
	}
	IVTV_INFO("Tuner:  %s\n",
		test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags) ? "Radio" : "TV");
	cx2341x_log_status(&itv->params, itv->name);
	IVTV_INFO("Status flags:    0x%08lx\n", itv->i_flags);
	for (i = 0; i < IVTV_MAX_STREAMS; i++) {
		struct ivtv_stream *s = &itv->streams[i];

		if (s->v4l2dev == NULL || s->buffers == 0)
			continue;
		IVTV_INFO("Stream %s: status 0x%04lx, %d%% of %d KiB (%d buffers) in use\n", s->name, s->s_flags,
				(s->buffers - s->q_free.buffers) * 100 / s->buffers,
				(s->buffers * s->buf_size) / 1024, s->buffers);
	}

	IVTV_INFO("Read MPG/VBI: %lld/%lld bytes\n", (long long)itv->mpg_data_received, (long long)itv->vbi_data_inserted);
	IVTV_INFO("==================  END STATUS CARD #%d  ==================\n", itv->num);

	return 0;
}

static int ivtv_decoder_ioctls(struct file *filp, unsigned int cmd, void *arg)
{
	struct ivtv_open_id *id = (struct ivtv_open_id *)filp->private_data;
	struct ivtv *itv = id->itv;
	int nonblocking = filp->f_flags & O_NONBLOCK;
	struct ivtv_stream *s = &itv->streams[id->type];

	switch (cmd) {
	case IVTV_IOC_DMA_FRAME: {
		struct ivtv_dma_frame *args = arg;

		IVTV_DEBUG_IOCTL("IVTV_IOC_DMA_FRAME\n");
		if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
			return -EINVAL;
		if (args->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
			return -EINVAL;
		if (itv->output_mode == OUT_UDMA_YUV && args->y_source == NULL)
			return 0;
		if (ivtv_claim_stream(id, id->type)) {
			return -EBUSY;
		}
		if (ivtv_set_output_mode(itv, OUT_UDMA_YUV) != OUT_UDMA_YUV) {
			ivtv_release_stream(s);
			return -EBUSY;
		}
		/* Mark that this file handle started the UDMA_YUV mode */
		id->yuv_frames = 1;
		if (args->y_source == NULL)
			return 0;
		return ivtv_yuv_prep_frame(itv, args);
	}

	case VIDEO_GET_PTS: {
		u32 data[CX2341X_MBOX_MAX_DATA];
		u64 *pts = arg;

		IVTV_DEBUG_IOCTL("VIDEO_GET_PTS\n");
		if (s->type < IVTV_DEC_STREAM_TYPE_MPG) {
			*pts = s->dma_pts;
			break;
		}
		if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
			return -EINVAL;

		if (test_bit(IVTV_F_I_VALID_DEC_TIMINGS, &itv->i_flags)) {
			*pts = (u64) ((u64)itv->last_dec_timing[2] << 32) |
					(u64)itv->last_dec_timing[1];
			break;
		}
		*pts = 0;
		if (atomic_read(&itv->decoding)) {
			if (ivtv_api(itv, CX2341X_DEC_GET_TIMING_INFO, 5, data)) {
				IVTV_DEBUG_WARN("GET_TIMING: couldn't read clock\n");
				return -EIO;
			}
			memcpy(itv->last_dec_timing, data, sizeof(itv->last_dec_timing));
			set_bit(IVTV_F_I_VALID_DEC_TIMINGS, &itv->i_flags);
			*pts = (u64) ((u64) data[2] << 32) | (u64) data[1];
			/*timing->scr = (u64) (((u64) data[4] << 32) | (u64) (data[3]));*/
		}
		break;
	}

	case VIDEO_GET_FRAME_COUNT: {
		u32 data[CX2341X_MBOX_MAX_DATA];
		u64 *frame = arg;

		IVTV_DEBUG_IOCTL("VIDEO_GET_FRAME_COUNT\n");
		if (s->type < IVTV_DEC_STREAM_TYPE_MPG) {
			*frame = 0;
			break;
		}
		if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
			return -EINVAL;

		if (test_bit(IVTV_F_I_VALID_DEC_TIMINGS, &itv->i_flags)) {
			*frame = itv->last_dec_timing[0];
			break;
		}
		*frame = 0;
		if (atomic_read(&itv->decoding)) {
			if (ivtv_api(itv, CX2341X_DEC_GET_TIMING_INFO, 5, data)) {
				IVTV_DEBUG_WARN("GET_TIMING: couldn't read clock\n");
				return -EIO;
			}
			memcpy(itv->last_dec_timing, data, sizeof(itv->last_dec_timing));
			set_bit(IVTV_F_I_VALID_DEC_TIMINGS, &itv->i_flags);
			*frame = data[0];
		}
		break;
	}

	case VIDEO_PLAY: {
		struct video_command vc;

		IVTV_DEBUG_IOCTL("VIDEO_PLAY\n");
		memset(&vc, 0, sizeof(vc));
		vc.cmd = VIDEO_CMD_PLAY;
		return ivtv_video_command(itv, id, &vc, 0);
	}

	case VIDEO_STOP: {
		struct video_command vc;

		IVTV_DEBUG_IOCTL("VIDEO_STOP\n");
		memset(&vc, 0, sizeof(vc));
		vc.cmd = VIDEO_CMD_STOP;
		vc.flags = VIDEO_CMD_STOP_TO_BLACK | VIDEO_CMD_STOP_IMMEDIATELY;
		return ivtv_video_command(itv, id, &vc, 0);
	}

	case VIDEO_FREEZE: {
		struct video_command vc;

		IVTV_DEBUG_IOCTL("VIDEO_FREEZE\n");
		memset(&vc, 0, sizeof(vc));
		vc.cmd = VIDEO_CMD_FREEZE;
		return ivtv_video_command(itv, id, &vc, 0);
	}

	case VIDEO_CONTINUE: {
		struct video_command vc;

		IVTV_DEBUG_IOCTL("VIDEO_CONTINUE\n");
		memset(&vc, 0, sizeof(vc));
		vc.cmd = VIDEO_CMD_CONTINUE;
		return ivtv_video_command(itv, id, &vc, 0);
	}

	case VIDEO_COMMAND:
	case VIDEO_TRY_COMMAND: {
		struct video_command *vc = arg;
		int try = (cmd == VIDEO_TRY_COMMAND);

		if (try)
			IVTV_DEBUG_IOCTL("VIDEO_TRY_COMMAND %d\n", vc->cmd);
		else
			IVTV_DEBUG_IOCTL("VIDEO_COMMAND %d\n", vc->cmd);
		return ivtv_video_command(itv, id, vc, try);
	}

	case VIDEO_GET_EVENT: {
		struct video_event *ev = arg;
		DEFINE_WAIT(wait);

		IVTV_DEBUG_IOCTL("VIDEO_GET_EVENT\n");
		if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
			return -EINVAL;
		memset(ev, 0, sizeof(*ev));
		set_bit(IVTV_F_I_EV_VSYNC_ENABLED, &itv->i_flags);

		while (1) {
			if (test_and_clear_bit(IVTV_F_I_EV_DEC_STOPPED, &itv->i_flags))
				ev->type = VIDEO_EVENT_DECODER_STOPPED;
			else if (test_and_clear_bit(IVTV_F_I_EV_VSYNC, &itv->i_flags)) {
				ev->type = VIDEO_EVENT_VSYNC;
				ev->u.vsync_field = test_bit(IVTV_F_I_EV_VSYNC_FIELD, &itv->i_flags) ?
					VIDEO_VSYNC_FIELD_ODD : VIDEO_VSYNC_FIELD_EVEN;
				if (itv->output_mode == OUT_UDMA_YUV &&
					(itv->yuv_info.lace_mode & IVTV_YUV_MODE_MASK) ==
								IVTV_YUV_MODE_PROGRESSIVE) {
					ev->u.vsync_field = VIDEO_VSYNC_FIELD_PROGRESSIVE;
				}
			}
			if (ev->type)
				return 0;
			if (nonblocking)
				return -EAGAIN;
			/* Wait for event. Note that serialize_lock is locked,
			   so to allow other processes to access the driver while
			   we are waiting unlock first and later lock again. */
			mutex_unlock(&itv->serialize_lock);
			prepare_to_wait(&itv->event_waitq, &wait, TASK_INTERRUPTIBLE);
			if ((itv->i_flags & (IVTV_F_I_EV_DEC_STOPPED|IVTV_F_I_EV_VSYNC)) == 0)
				schedule();
			finish_wait(&itv->event_waitq, &wait);
			mutex_lock(&itv->serialize_lock);
			if (signal_pending(current)) {
				/* return if a signal was received */
				IVTV_DEBUG_INFO("User stopped wait for event\n");
				return -EINTR;
			}
		}
		break;
	}

	default:
		return -EINVAL;
	}
	return 0;
}

static int ivtv_default(struct file *file, void *fh, int cmd, void *arg)
{
	struct ivtv *itv = ((struct ivtv_open_id *)fh)->itv;

	switch (cmd) {
	case VIDIOC_INT_S_AUDIO_ROUTING: {
		struct v4l2_routing *route = arg;

		ivtv_i2c_hw(itv, itv->card->hw_audio, VIDIOC_INT_S_AUDIO_ROUTING, route);
		break;
	}

	case VIDIOC_INT_RESET: {
		u32 val = *(u32 *)arg;

		if ((val == 0 && itv->options.newi2c) || (val & 0x01))
			ivtv_reset_ir_gpio(itv);
		if (val & 0x02)
			itv->video_dec_func(itv, cmd, NULL);
		break;
	}

	default:
		return -EINVAL;
	}
	return 0;
}

static int ivtv_serialized_ioctl(struct ivtv *itv, struct inode *inode, struct file *filp,
		unsigned int cmd, unsigned long arg)
{
	struct ivtv_open_id *id = (struct ivtv_open_id *)filp->private_data;
	int ret;

	/* Filter dvb ioctls that cannot be handled by the v4l ioctl framework */
	switch (cmd) {
	case VIDEO_SELECT_SOURCE:
		IVTV_DEBUG_IOCTL("VIDEO_SELECT_SOURCE\n");
		if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
			return -EINVAL;
		return ivtv_passthrough_mode(itv, arg == VIDEO_SOURCE_DEMUX);

	case AUDIO_SET_MUTE:
		IVTV_DEBUG_IOCTL("AUDIO_SET_MUTE\n");
		itv->speed_mute_audio = arg;
		return 0;

	case AUDIO_CHANNEL_SELECT:
		IVTV_DEBUG_IOCTL("AUDIO_CHANNEL_SELECT\n");
		if (arg > AUDIO_STEREO_SWAPPED)
			return -EINVAL;
		itv->audio_stereo_mode = arg;
		ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode);
		return 0;

	case AUDIO_BILINGUAL_CHANNEL_SELECT:
		IVTV_DEBUG_IOCTL("AUDIO_BILINGUAL_CHANNEL_SELECT\n");
		if (arg > AUDIO_STEREO_SWAPPED)
			return -EINVAL;
		itv->audio_bilingual_mode = arg;
		ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode);
		return 0;

	case IVTV_IOC_DMA_FRAME:
	case VIDEO_GET_PTS:
	case VIDEO_GET_FRAME_COUNT:
	case VIDEO_GET_EVENT:
	case VIDEO_PLAY:
	case VIDEO_STOP:
	case VIDEO_FREEZE:
	case VIDEO_CONTINUE:
	case VIDEO_COMMAND:
	case VIDEO_TRY_COMMAND:
		return ivtv_decoder_ioctls(filp, cmd, (void *)arg);

	default:
		break;
	}

	/* check priority */
	switch (cmd) {
	case VIDIOC_S_CTRL:
	case VIDIOC_S_STD:
	case VIDIOC_S_INPUT:
	case VIDIOC_S_OUTPUT:
	case VIDIOC_S_TUNER:
	case VIDIOC_S_FREQUENCY:
	case VIDIOC_S_FMT:
	case VIDIOC_S_CROP:
	case VIDIOC_S_AUDIO:
	case VIDIOC_S_AUDOUT:
	case VIDIOC_S_EXT_CTRLS:
	case VIDIOC_S_FBUF:
	case VIDIOC_OVERLAY:
		ret = v4l2_prio_check(&itv->prio, &id->prio);
		if (ret)
			return ret;
	}

	if (ivtv_debug & IVTV_DBGFLG_IOCTL) {
		printk(KERN_INFO "ivtv%d ioctl: ", itv->num);
		v4l_printk_ioctl(cmd);
		printk("\n");
	}

	return video_ioctl2(inode, filp, cmd, arg);
}

int ivtv_v4l2_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
		    unsigned long arg)
{
	struct ivtv_open_id *id = (struct ivtv_open_id *)filp->private_data;
	struct ivtv *itv = id->itv;
	int res;

	mutex_lock(&itv->serialize_lock);
	res = ivtv_serialized_ioctl(itv, inode, filp, cmd, arg);
	mutex_unlock(&itv->serialize_lock);
	return res;
}

void ivtv_set_funcs(struct video_device *vdev)
{
	vdev->vidioc_querycap     	    = ivtv_querycap;
	vdev->vidioc_g_priority   	    = ivtv_g_priority;
	vdev->vidioc_s_priority   	    = ivtv_s_priority;
	vdev->vidioc_s_audio      	    = ivtv_s_audio;
	vdev->vidioc_g_audio      	    = ivtv_g_audio;
	vdev->vidioc_enumaudio   	    = ivtv_enumaudio;
	vdev->vidioc_s_audout     	    = ivtv_s_audout;
	vdev->vidioc_g_audout     	    = ivtv_g_audout;
	vdev->vidioc_enum_input   	    = ivtv_enum_input;
	vdev->vidioc_enum_output   	    = ivtv_enum_output;
	vdev->vidioc_enumaudout   	    = ivtv_enumaudout;
	vdev->vidioc_cropcap       	    = ivtv_cropcap;
	vdev->vidioc_s_crop       	    = ivtv_s_crop;
	vdev->vidioc_g_crop       	    = ivtv_g_crop;
	vdev->vidioc_g_input      	    = ivtv_g_input;
	vdev->vidioc_s_input      	    = ivtv_s_input;
	vdev->vidioc_g_output     	    = ivtv_g_output;
	vdev->vidioc_s_output     	    = ivtv_s_output;
	vdev->vidioc_g_frequency 	    = ivtv_g_frequency;
	vdev->vidioc_s_frequency  	    = ivtv_s_frequency;
	vdev->vidioc_s_tuner      	    = ivtv_s_tuner;
	vdev->vidioc_g_tuner      	    = ivtv_g_tuner;
	vdev->vidioc_g_enc_index 	    = ivtv_g_enc_index;
	vdev->vidioc_g_fbuf		    = ivtv_g_fbuf;
	vdev->vidioc_s_fbuf		    = ivtv_s_fbuf;
	vdev->vidioc_g_std 		    = ivtv_g_std;
	vdev->vidioc_s_std 		    = ivtv_s_std;
	vdev->vidioc_overlay		    = ivtv_overlay;
	vdev->vidioc_log_status		    = ivtv_log_status;
	vdev->vidioc_enum_fmt_vid_cap 	    = ivtv_enum_fmt_vid_cap;
	vdev->vidioc_encoder_cmd  	    = ivtv_encoder_cmd;
	vdev->vidioc_try_encoder_cmd 	    = ivtv_try_encoder_cmd;
	vdev->vidioc_enum_fmt_vid_out       = ivtv_enum_fmt_vid_out;
	vdev->vidioc_g_fmt_vid_cap  	    = ivtv_g_fmt_vid_cap;
	vdev->vidioc_g_fmt_vbi_cap	    = ivtv_g_fmt_vbi_cap;
	vdev->vidioc_g_fmt_sliced_vbi_cap   = ivtv_g_fmt_sliced_vbi_cap;
	vdev->vidioc_g_fmt_vid_out          = ivtv_g_fmt_vid_out;
	vdev->vidioc_g_fmt_vid_out_overlay  = ivtv_g_fmt_vid_out_overlay;
	vdev->vidioc_g_fmt_sliced_vbi_out   = ivtv_g_fmt_sliced_vbi_out;
	vdev->vidioc_s_fmt_vid_cap  	    = ivtv_s_fmt_vid_cap;
	vdev->vidioc_s_fmt_vbi_cap 	    = ivtv_s_fmt_vbi_cap;
	vdev->vidioc_s_fmt_sliced_vbi_cap   = ivtv_s_fmt_sliced_vbi_cap;
	vdev->vidioc_s_fmt_vid_out          = ivtv_s_fmt_vid_out;
	vdev->vidioc_s_fmt_vid_out_overlay  = ivtv_s_fmt_vid_out_overlay;
	vdev->vidioc_s_fmt_sliced_vbi_out   = ivtv_s_fmt_sliced_vbi_out;
	vdev->vidioc_try_fmt_vid_cap  	    = ivtv_try_fmt_vid_cap;
	vdev->vidioc_try_fmt_vbi_cap	    = ivtv_try_fmt_vbi_cap;
	vdev->vidioc_try_fmt_sliced_vbi_cap = ivtv_try_fmt_sliced_vbi_cap;
	vdev->vidioc_try_fmt_vid_out        = ivtv_try_fmt_vid_out;
	vdev->vidioc_try_fmt_vid_out_overlay = ivtv_try_fmt_vid_out_overlay;
	vdev->vidioc_try_fmt_sliced_vbi_out = ivtv_try_fmt_sliced_vbi_out;
	vdev->vidioc_g_sliced_vbi_cap 	    = ivtv_g_sliced_vbi_cap;
	vdev->vidioc_g_chip_ident 	    = ivtv_g_chip_ident;
	vdev->vidioc_g_register 	    = ivtv_g_register;
	vdev->vidioc_s_register 	    = ivtv_s_register;
	vdev->vidioc_default 		    = ivtv_default;
	vdev->vidioc_queryctrl 		    = ivtv_queryctrl;
	vdev->vidioc_querymenu 		    = ivtv_querymenu;
	vdev->vidioc_g_ctrl 		    = ivtv_g_ctrl;
	vdev->vidioc_s_ctrl 		    = ivtv_s_ctrl;
	vdev->vidioc_g_ext_ctrls    	    = ivtv_g_ext_ctrls;
	vdev->vidioc_s_ext_ctrls    	    = ivtv_s_ext_ctrls;
	vdev->vidioc_try_ext_ctrls    	    = ivtv_try_ext_ctrls;
}