Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 0a4df239 authored by Gianluca Gennari's avatar Gianluca Gennari Committed by Mauro Carvalho Chehab
Browse files

[media] af9033: implement get_frontend 



Implement the get_frontend function.
The code is derived from the old af9033 driver by Antti Palosaari.

Signed-off-by: default avatarGianluca Gennari <gennarone@gmail.com>
Signed-off-by: default avatarAntti Palosaari <crope@iki.fi>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent f2b61d0c

drivers/media/dvb/frontends/af9033.c

+133 −0
Original line number Diff line number Diff line
@@ -26,6 +26,7 @@ struct af9033_state { 
	struct dvb_frontend fe;

	struct af9033_config cfg;



	u32 frequency;

	u32 bandwidth_hz;

	bool ts_mode_parallel;

	bool ts_mode_serial;
@@ -406,6 +407,8 @@ static int af9033_set_frontend(struct dvb_frontend *fe) 
	pr_debug("%s: frequency=%d bandwidth_hz=%d\n", __func__, c->frequency,

			c->bandwidth_hz);



	state->frequency = c->frequency;



	/* check bandwidth */

	switch (c->bandwidth_hz) {

	case 6000000:
@@ -523,6 +526,135 @@ static int af9033_set_frontend(struct dvb_frontend *fe) 
	return ret;

}



static int af9033_get_frontend(struct dvb_frontend *fe)

{

	struct dtv_frontend_properties *p = &fe->dtv_property_cache;

	struct af9033_state *state = fe->demodulator_priv;

	int ret;

	u8 buf[8];



	pr_debug("%s\n", __func__);



	/* read all needed registers */

	ret = af9033_rd_regs(state, 0x80f900, buf, sizeof(buf));

	if (ret)

		goto error;



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

	case 0:

		p->transmission_mode = TRANSMISSION_MODE_2K;

		break;

	case 1:

		p->transmission_mode = TRANSMISSION_MODE_8K;

		break;

	}



	switch ((buf[1] >> 0) & 3) {

	case 0:

		p->guard_interval = GUARD_INTERVAL_1_32;

		break;

	case 1:

		p->guard_interval = GUARD_INTERVAL_1_16;

		break;

	case 2:

		p->guard_interval = GUARD_INTERVAL_1_8;

		break;

	case 3:

		p->guard_interval = GUARD_INTERVAL_1_4;

		break;

	}



	switch ((buf[2] >> 0) & 7) {

	case 0:

		p->hierarchy = HIERARCHY_NONE;

		break;

	case 1:

		p->hierarchy = HIERARCHY_1;

		break;

	case 2:

		p->hierarchy = HIERARCHY_2;

		break;

	case 3:

		p->hierarchy = HIERARCHY_4;

		break;

	}



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

	case 0:

		p->modulation = QPSK;

		break;

	case 1:

		p->modulation = QAM_16;

		break;

	case 2:

		p->modulation = QAM_64;

		break;

	}



	switch ((buf[4] >> 0) & 3) {

	case 0:

		p->bandwidth_hz = 6000000;

		break;

	case 1:

		p->bandwidth_hz = 7000000;

		break;

	case 2:

		p->bandwidth_hz = 8000000;

		break;

	}



	switch ((buf[6] >> 0) & 7) {

	case 0:

		p->code_rate_HP = FEC_1_2;

		break;

	case 1:

		p->code_rate_HP = FEC_2_3;

		break;

	case 2:

		p->code_rate_HP = FEC_3_4;

		break;

	case 3:

		p->code_rate_HP = FEC_5_6;

		break;

	case 4:

		p->code_rate_HP = FEC_7_8;

		break;

	case 5:

		p->code_rate_HP = FEC_NONE;

		break;

	}



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

	case 0:

		p->code_rate_LP = FEC_1_2;

		break;

	case 1:

		p->code_rate_LP = FEC_2_3;

		break;

	case 2:

		p->code_rate_LP = FEC_3_4;

		break;

	case 3:

		p->code_rate_LP = FEC_5_6;

		break;

	case 4:

		p->code_rate_LP = FEC_7_8;

		break;

	case 5:

		p->code_rate_LP = FEC_NONE;

		break;

	}



	p->inversion = INVERSION_AUTO;

	p->frequency = state->frequency;



error:

	if (ret)

		pr_debug("%s: failed:%d\n", __func__, ret);



	return ret;

}



static int af9033_read_status(struct dvb_frontend *fe, fe_status_t *status)

{

	struct af9033_state *state = fe->demodulator_priv;
@@ -776,6 +908,7 @@ static struct dvb_frontend_ops af9033_ops = { 


	.get_tune_settings = af9033_get_tune_settings,

	.set_frontend = af9033_set_frontend,

	.get_frontend = af9033_get_frontend,



	.read_status = af9033_read_status,

	.read_snr = af9033_read_snr,