linux-imx

/*

 * i2c tv tuner chip device driver

 * controls microtune tuners, mt2032 + mt2050 at the moment.

 *

 * This "mt20xx" module was split apart from the original "tuner" module.

 */

#include <linux/delay.h>

#include <linux/i2c.h>

#include <linux/slab.h>

#include <linux/videodev2.h>

#include "tuner-i2c.h"

#include "mt20xx.h"

​

static int debug;

module_param(debug, int, 0644);

MODULE_PARM_DESC(debug, "enable verbose debug messages");

​

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

​

static unsigned int optimize_vco  = 1;

module_param(optimize_vco,      int, 0644);

​

static unsigned int tv_antenna    = 1;

module_param(tv_antenna,        int, 0644);

​

static unsigned int radio_antenna;

module_param(radio_antenna,     int, 0644);

​

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

​

#define MT2032 0x04

#define MT2030 0x06

#define MT2040 0x07

#define MT2050 0x42

​

static char *microtune_part[] = {

    [ MT2030 ] = "MT2030",

    [ MT2032 ] = "MT2032",

    [ MT2040 ] = "MT2040",

    [ MT2050 ] = "MT2050",

};

​

struct microtune_priv {

    struct tuner_i2c_props i2c_props;

​

    unsigned int xogc;

    //unsigned int radio_if2;

​

    u32 frequency;

};

​

static void microtune_release(struct dvb_frontend *fe)

{

    kfree(fe->tuner_priv);

    fe->tuner_priv = NULL;

}

​

static int microtune_get_frequency(struct dvb_frontend *fe, u32 *frequency)

{

    struct microtune_priv *priv = fe->tuner_priv;

    *frequency = priv->frequency;

    return 0;

}