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Commit 8cfba630 authored by Manu Abraham's avatar Manu Abraham Committed by Mauro Carvalho Chehab
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V4L/DVB (4159): Implement tuning algorithm as a module parameter 



Signed-off-by: default avatarManu Abraham <manu@linuxtv.org>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent 2e506a0f

drivers/media/dvb/bt8xx/dst.c

+47 −5
Original line number Diff line number Diff line
@@ -38,6 +38,10 @@ static unsigned int dst_addons; 
module_param(dst_addons, int, 0644);

MODULE_PARM_DESC(dst_addons, "CA daughterboard, default is 0 (No addons)");



static unsigned int dst_algo;

module_param(dst_algo, int, 0644);

MODULE_PARM_DESC(dst_algo, "tuning algo: default is 0=(SW), 1=(HW)");



#define HAS_LOCK		1

#define ATTEMPT_TUNE		2

#define HAS_POWER		4
@@ -1360,7 +1364,36 @@ static int dst_read_snr(struct dvb_frontend *fe, u16 *snr) 
	return 0;

}



static int dst_set_frontend(struct dvb_frontend* fe,

static int dst_set_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *p)

{

	struct dst_state *state = fe->demodulator_priv;



	if (p != NULL) {

		dst_set_freq(state, p->frequency);

		dprintk(verbose, DST_DEBUG, 1, "Set Frequency=[%d]", p->frequency);



		if (state->dst_type == DST_TYPE_IS_SAT) {

			if (state->type_flags & DST_TYPE_HAS_OBS_REGS)

				dst_set_inversion(state, p->inversion);

			dst_set_fec(state, p->u.qpsk.fec_inner);

			dst_set_symbolrate(state, p->u.qpsk.symbol_rate);

			dst_set_polarization(state);

			dprintk(verbose, DST_DEBUG, 1, "Set Symbolrate=[%d]", p->u.qpsk.symbol_rate);



		} else if (state->dst_type == DST_TYPE_IS_TERR)

			dst_set_bandwidth(state, p->u.ofdm.bandwidth);

		else if (state->dst_type == DST_TYPE_IS_CABLE) {

			dst_set_fec(state, p->u.qam.fec_inner);

			dst_set_symbolrate(state, p->u.qam.symbol_rate);

			dst_set_modulation(state, p->u.qam.modulation);

		}

		dst_write_tuna(fe);

	}



	return 0;

}



static int dst_tune_frontend(struct dvb_frontend* fe,

			    struct dvb_frontend_parameters* p,

			    unsigned int mode_flags,

			    int *delay,
@@ -1397,6 +1430,11 @@ static int dst_set_frontend(struct dvb_frontend* fe, 
	return 0;

}



static int dst_get_tuning_algo(struct dvb_frontend *fe)

{

	return dst_algo;

}



static int dst_get_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *p)

{

	struct dst_state *state = fe->demodulator_priv;
@@ -1476,7 +1514,8 @@ static struct dvb_frontend_ops dst_dvbt_ops = { 


	.release = dst_release,

	.init = dst_init,

	.tune = dst_set_frontend,

	.tune = dst_tune_frontend,

	.set_frontend = dst_set_frontend,

	.get_frontend = dst_get_frontend,

	.read_status = dst_read_status,

	.read_signal_strength = dst_read_signal_strength,
@@ -1500,7 +1539,8 @@ static struct dvb_frontend_ops dst_dvbs_ops = { 


	.release = dst_release,

	.init = dst_init,

	.tune = dst_set_frontend,

	.tune = dst_tune_frontend,

	.set_frontend = dst_set_frontend,

	.get_frontend = dst_get_frontend,

	.read_status = dst_read_status,

	.read_signal_strength = dst_read_signal_strength,
@@ -1527,7 +1567,8 @@ static struct dvb_frontend_ops dst_dvbc_ops = { 


	.release = dst_release,

	.init = dst_init,

	.tune = dst_set_frontend,

	.tune = dst_tune_frontend,

	.set_frontend = dst_set_frontend,

	.get_frontend = dst_get_frontend,

	.read_status = dst_read_status,

	.read_signal_strength = dst_read_signal_strength,
@@ -1548,7 +1589,8 @@ static struct dvb_frontend_ops dst_atsc_ops = { 


	.release = dst_release,

	.init = dst_init,

	.tune = dst_set_frontend,

	.tune = dst_tune_frontend,

	.set_frontend = dst_set_frontend,

	.get_frontend = dst_get_frontend,

	.read_status = dst_read_status,

	.read_signal_strength = dst_read_signal_strength,