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Commit d7009cdc authored by Beholder Intl. Ltd. Dmitry Belimov's avatar Beholder Intl. Ltd. Dmitry Belimov Committed by Mauro Carvalho Chehab
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V4L/DVB (13075): xc5000: add FM radio support 



Add FM radio for the xc5000 silicon tuner chip.

Signed-off-by: default avatarBeholder Intl. Ltd. Dmitry Belimov <d.belimov@gmail.com>
Signed-off-by: default avatarDevin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 798166db

drivers/media/common/tuners/xc5000.c

+62 −4
Original line number Original line Diff line number Diff line
@@ -739,15 +739,12 @@ static int xc5000_is_firmware_loaded(struct dvb_frontend *fe) 
	return ret;

	return ret;

}

}





static int xc5000_set_analog_params(struct dvb_frontend *fe,

static int xc5000_set_tv_freq(struct dvb_frontend *fe,

	struct analog_parameters *params)

	struct analog_parameters *params)

{

{

	struct xc5000_priv *priv = fe->tuner_priv;

	struct xc5000_priv *priv = fe->tuner_priv;

	int ret;

	int ret;





	if (xc5000_is_firmware_loaded(fe) != XC_RESULT_SUCCESS)

		xc_load_fw_and_init_tuner(fe);



	dprintk(1, "%s() frequency=%d (in units of 62.5khz)\n",

	dprintk(1, "%s() frequency=%d (in units of 62.5khz)\n",

		__func__, params->frequency);

		__func__, params->frequency);
@@ -827,6 +824,67 @@ static int xc5000_set_analog_params(struct dvb_frontend *fe, 
	return 0;

	return 0;

}

}





static int xc5000_set_radio_freq(struct dvb_frontend *fe,

	struct analog_parameters *params)

{

	struct xc5000_priv *priv = fe->tuner_priv;

	int ret = -EINVAL;



	dprintk(1, "%s() frequency=%d (in units of khz)\n",

		__func__, params->frequency);



	priv->freq_hz = params->frequency * 125 / 2;



	priv->rf_mode = XC_RF_MODE_AIR;



	ret = xc_SetTVStandard(priv,

		XC5000_Standard[FM_Radio_INPUT1].VideoMode,

		XC5000_Standard[FM_Radio_INPUT1].AudioMode);



	if (ret != XC_RESULT_SUCCESS) {

		printk(KERN_ERR "xc5000: xc_SetTVStandard failed\n");

		return -EREMOTEIO;

	}



	ret = xc_SetSignalSource(priv, priv->rf_mode);

	if (ret != XC_RESULT_SUCCESS) {

		printk(KERN_ERR

			"xc5000: xc_SetSignalSource(%d) failed\n",

			priv->rf_mode);

		return -EREMOTEIO;

	}



	xc_tune_channel(priv, priv->freq_hz, XC_TUNE_ANALOG);



	return 0;

}



static int xc5000_set_analog_params(struct dvb_frontend *fe,

			     struct analog_parameters *params)

{

	struct xc5000_priv *priv = fe->tuner_priv;

	int ret = -EINVAL;



	if (priv->i2c_props.adap == NULL)

		return -EINVAL;



	if (xc5000_is_firmware_loaded(fe) != XC_RESULT_SUCCESS)

		xc_load_fw_and_init_tuner(fe);



	switch (params->mode) {

	case V4L2_TUNER_RADIO:

		ret = xc5000_set_radio_freq(fe, params);

		break;

	case V4L2_TUNER_ANALOG_TV:

	case V4L2_TUNER_DIGITAL_TV:

		ret = xc5000_set_tv_freq(fe, params);

		break;

	}



	return ret;

}





static int xc5000_get_frequency(struct dvb_frontend *fe, u32 *freq)

static int xc5000_get_frequency(struct dvb_frontend *fe, u32 *freq)

{

{

	struct xc5000_priv *priv = fe->tuner_priv;

	struct xc5000_priv *priv = fe->tuner_priv;