linux-imx

/*

 *  bt819 - BT819A VideoStream Decoder (Rockwell Part)

 *

 * Copyright (C) 1999 Mike Bernson <mike@mlb.org>

 * Copyright (C) 1998 Dave Perks <dperks@ibm.net>

 *

 * Modifications for LML33/DC10plus unified driver

 * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>

 *

 * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>

 *    - moved over to linux>=2.4.x i2c protocol (9/9/2002)

 *

 * This code was modify/ported from the saa7111 driver written

 * by Dave Perks.

 *

 * 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.

 */

​

#include <linux/module.h>

#include <linux/types.h>

#include <linux/ioctl.h>

#include <linux/delay.h>

#include <linux/i2c.h>

#include <linux/videodev2.h>

#include <linux/slab.h>

#include <media/v4l2-device.h>

#include <media/v4l2-ctrls.h>

#include <media/i2c/bt819.h>

​

MODULE_DESCRIPTION("Brooktree-819 video decoder driver");

MODULE_AUTHOR("Mike Bernson & Dave Perks");

MODULE_LICENSE("GPL");

​

static int debug;

module_param(debug, int, 0);

MODULE_PARM_DESC(debug, "Debug level (0-1)");

​

​

/* ----------------------------------------------------------------------- */

​

struct bt819 {

    struct v4l2_subdev sd;

    struct v4l2_ctrl_handler hdl;

    unsigned char reg[32];

​

    v4l2_std_id norm;

    int input;

    int enable;

};

​

static inline struct bt819 *to_bt819(struct v4l2_subdev *sd)

{

    return container_of(sd, struct bt819, sd);

}

​