コード例 #1
0
ファイル: tda8290.c プロジェクト: mikuhatsune001/linux2.6.32
static void tda8290_standby(struct dvb_frontend *fe)
{
	struct tda8290_priv *priv = fe->analog_demod_priv;

	unsigned char cb1[] = { 0x30, 0xD0 };
	unsigned char tda8290_standby[] = { 0x00, 0x02 };
	unsigned char tda8290_agc_tri[] = { 0x02, 0x20 };
	struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0, .buf=cb1, .len = 2};

	if (fe->ops.analog_ops.i2c_gate_ctrl)
		fe->ops.analog_ops.i2c_gate_ctrl(fe, 1);
	if (priv->ver & TDA8275A)
		cb1[1] = 0x90;
	i2c_transfer(priv->i2c_props.adap, &msg, 1);
	if (fe->ops.analog_ops.i2c_gate_ctrl)
		fe->ops.analog_ops.i2c_gate_ctrl(fe, 0);
	tuner_i2c_xfer_send(&priv->i2c_props, tda8290_agc_tri, 2);
	tuner_i2c_xfer_send(&priv->i2c_props, tda8290_standby, 2);
}

static void tda8295_standby(struct dvb_frontend *fe)
{
	tda8295_agc1_out(fe, 0); /* Put AGC in tri-state */

	tda8295_power(fe, 0);
}
コード例 #2
0
static void tda8295_init_if(struct dvb_frontend *fe)
{
	struct tda8290_priv *priv = fe->analog_demod_priv;

	static unsigned char set_adc_ctl[]       = { 0x33, 0x14 };
	static unsigned char set_adc_ctl2[]      = { 0x34, 0x00 };
	static unsigned char set_pll_reg6[]      = { 0x3e, 0x63 };
	static unsigned char set_pll_reg0[]      = { 0x38, 0x23 };
	static unsigned char set_pll_reg7[]      = { 0x3f, 0x01 };
	static unsigned char set_pll_reg10[]     = { 0x42, 0x61 };
	static unsigned char set_gpio_reg0[]     = { 0x44, 0x0b };

	tda8295_power(fe, 1);

	tda8295_set_easy_mode(fe, 0);
	tda8295_set_video_std(fe);

	tuner_i2c_xfer_send(&priv->i2c_props, set_adc_ctl, 2);
	tuner_i2c_xfer_send(&priv->i2c_props, set_adc_ctl2, 2);
	tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg6, 2);
	tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg0, 2);
	tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg7, 2);
	tuner_i2c_xfer_send(&priv->i2c_props, set_pll_reg10, 2);
	tuner_i2c_xfer_send(&priv->i2c_props, set_gpio_reg0, 2);

	tda8295_agc1_out(fe, 0);
	tda8295_agc2_out(fe, 0);
}
コード例 #3
0
ファイル: tda8290.c プロジェクト: mikuhatsune001/linux2.6.32
static void tda8295_set_params(struct dvb_frontend *fe,
			       struct analog_parameters *params)
{
	struct tda8290_priv *priv = fe->analog_demod_priv;
	u16 signal = 0;
	unsigned char blanking_mode[]     = { 0x1d, 0x00 };

	set_audio(fe, params);

	tuner_dbg("%s: freq = %d\n", __func__, params->frequency);

	tda8295_power(fe, 1);
	tda8295_agc1_out(fe, 1);

	tuner_i2c_xfer_send_recv(&priv->i2c_props,
				 &blanking_mode[0], 1, &blanking_mode[1], 1);

	tda8295_set_video_std(fe);

	blanking_mode[1] = 0x03;
	tuner_i2c_xfer_send(&priv->i2c_props, blanking_mode, 2);
	msleep(20);

	if (fe->ops.analog_ops.i2c_gate_ctrl)
		fe->ops.analog_ops.i2c_gate_ctrl(fe, 1);

	if (fe->ops.tuner_ops.set_analog_params)
		fe->ops.tuner_ops.set_analog_params(fe, params);

	if (priv->cfg.agcf)
		priv->cfg.agcf(fe);

	tda8295_has_signal(fe, &signal);
	if (signal)
		tuner_dbg("tda8295 is locked\n");
	else
		tuner_dbg("tda8295 not locked, no signal?\n");

	if (fe->ops.analog_ops.i2c_gate_ctrl)
		fe->ops.analog_ops.i2c_gate_ctrl(fe, 0);
}