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Commit 631a2b61 authored by Antti Palosaari's avatar Antti Palosaari Committed by Mauro Carvalho Chehab
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[media] rtl2830: implement .get_frontend() 



Signed-off-by: default avatarAntti Palosaari <crope@iki.fi>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 78e75075

drivers/media/dvb/frontends/rtl2830.c

+110 −0
Original line number Diff line number Diff line
@@ -374,6 +374,115 @@ static int rtl2830_set_frontend(struct dvb_frontend *fe) 
	return ret;

}



static int rtl2830_get_frontend(struct dvb_frontend *fe)

{

	struct rtl2830_priv *priv = fe->demodulator_priv;

	struct dtv_frontend_properties *c = &fe->dtv_property_cache;

	int ret;

	u8 buf[3];



	ret = rtl2830_rd_regs(priv, 0x33c, buf, 2);

	if (ret)

		goto err;



	ret = rtl2830_rd_reg(priv, 0x351, &buf[2]);

	if (ret)

		goto err;



	dbg("%s: TPS=%02x %02x %02x", __func__, buf[0], buf[1], buf[2]);



	switch ((buf[0] >> 2) & 3) {

	case 0:

		c->modulation = QPSK;

		break;

	case 1:

		c->modulation = QAM_16;

		break;

	case 2:

		c->modulation = QAM_64;

		break;

	}



	switch ((buf[2] >> 2) & 1) {

	case 0:

		c->transmission_mode = TRANSMISSION_MODE_2K;

		break;

	case 1:

		c->transmission_mode = TRANSMISSION_MODE_8K;

	}



	switch ((buf[2] >> 0) & 3) {

	case 0:

		c->guard_interval = GUARD_INTERVAL_1_32;

		break;

	case 1:

		c->guard_interval = GUARD_INTERVAL_1_16;

		break;

	case 2:

		c->guard_interval = GUARD_INTERVAL_1_8;

		break;

	case 3:

		c->guard_interval = GUARD_INTERVAL_1_4;

		break;

	}



	switch ((buf[0] >> 4) & 7) {

	case 0:

		c->hierarchy = HIERARCHY_NONE;

		break;

	case 1:

		c->hierarchy = HIERARCHY_1;

		break;

	case 2:

		c->hierarchy = HIERARCHY_2;

		break;

	case 3:

		c->hierarchy = HIERARCHY_4;

		break;

	}



	switch ((buf[1] >> 3) & 7) {

	case 0:

		c->code_rate_HP = FEC_1_2;

		break;

	case 1:

		c->code_rate_HP = FEC_2_3;

		break;

	case 2:

		c->code_rate_HP = FEC_3_4;

		break;

	case 3:

		c->code_rate_HP = FEC_5_6;

		break;

	case 4:

		c->code_rate_HP = FEC_7_8;

		break;

	}



	switch ((buf[1] >> 0) & 7) {

	case 0:

		c->code_rate_LP = FEC_1_2;

		break;

	case 1:

		c->code_rate_LP = FEC_2_3;

		break;

	case 2:

		c->code_rate_LP = FEC_3_4;

		break;

	case 3:

		c->code_rate_LP = FEC_5_6;

		break;

	case 4:

		c->code_rate_LP = FEC_7_8;

		break;

	}



	return 0;

err:

	dbg("%s: failed=%d", __func__, ret);

	return ret;

}



static int rtl2830_read_status(struct dvb_frontend *fe, fe_status_t *status)

{

	struct rtl2830_priv *priv = fe->demodulator_priv;
@@ -622,6 +731,7 @@ static struct dvb_frontend_ops rtl2830_ops = { 
	.get_tune_settings = rtl2830_get_tune_settings,



	.set_frontend = rtl2830_set_frontend,

	.get_frontend = rtl2830_get_frontend,



	.read_status = rtl2830_read_status,

	.read_snr = rtl2830_read_snr,