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#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/delay.h>
#include <linux/dvb/frontend.h>
#include "dvb_frontend.h"
#include "af903x.h"
#define IF2 36150 // IF2 frequency = 36.150 MHz
#define FREF 16000 // Quartz oscillator 16 MHz
static int tuner_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *params)
{
struct tuner_priv *priv=NULL;
DWORD dwError = Error_NO_ERROR;
DWORD freq = params->frequency ;// 1000; // Hz -> kHz
priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
deb_data("%s - freq : %d , bandwidth : %dn",__FUNCTION__, (int) freq,priv->bandwidth);
dwError =DL_Tuner_SetFreqBw(fe->dvb->num, freq,priv->bandwidth);
if (dwError) deb_data("tuner_set_params Fail !\n");
return 0;
}
static int tuner_get_frequency(struct dvb_frontend *fe, u32 *frequency)
{
struct tuner_priv *priv = fe->tuner_priv;
*frequency = priv->frequency;
return 0;
}
static int tuner_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
{
struct tuner_priv *priv = fe->tuner_priv;
*bandwidth = priv->bandwidth;
return 0;
}
static int tuner_init(struct dvb_frontend *fe)
{
return 0;
}
static int tuner_sleep(struct dvb_frontend *fe)
{
return 0;
}
static int tuner_release(struct dvb_frontend *fe)
{
kfree(fe->tuner_priv);
fe->tuner_priv = NULL;
return 0;
}
static const struct dvb_tuner_ops tuner_tuner_ops = {
.info = {
.name = "dvb_usb_tuner",
.frequency_min = 48000000,
.frequency_max = 860000000,
.frequency_step = 50000,
},
.release = tuner_release,
.init = tuner_init,
.sleep = tuner_sleep,
.set_params = tuner_set_params,
.get_frequency = tuner_get_frequency,
.get_bandwidth = tuner_get_bandwidth
};
/* This functions tries to identify a MT2060 tuner by reading the PART/REV register. This is hasty. */
struct dvb_frontend * tuner_attach(struct dvb_frontend *fe)
{
struct tuner_priv *priv = NULL;
priv = kzalloc(sizeof(struct tuner_priv), GFP_KERNEL);
if (priv == NULL)
return NULL;
memcpy(&fe->ops.tuner_ops, &tuner_tuner_ops, sizeof(struct dvb_tuner_ops));
fe->tuner_priv = priv;
return fe;
}
EXPORT_SYMBOL(tuner_attach);
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