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Commit 5918288a authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab
Browse files

[media] tua6100: use DVBv5 parameters on set_params() 



Instead of using DVBv3 parameters, rely on DVBv5 parameters to
set the tuner

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent b738ae16

drivers/media/dvb/frontends/tua6100.c

+15 −13
Original line number Original line Diff line number Diff line
@@ -70,6 +70,7 @@ static int tua6100_sleep(struct dvb_frontend *fe) 
static int tua6100_set_params(struct dvb_frontend *fe,

static int tua6100_set_params(struct dvb_frontend *fe,

			      struct dvb_frontend_parameters *params)

			      struct dvb_frontend_parameters *params)

{

{

	struct dtv_frontend_properties *c = &fe->dtv_property_cache;

	struct tua6100_priv *priv = fe->tuner_priv;

	struct tua6100_priv *priv = fe->tuner_priv;

	u32 div;

	u32 div;

	u32 prediv;

	u32 prediv;
@@ -85,36 +86,37 @@ static int tua6100_set_params(struct dvb_frontend *fe, 
#define _ri 4000000

#define _ri 4000000





	// setup register 0

	// setup register 0

	if (params->frequency < 2000000) {

	if (c->frequency < 2000000)

		reg0[1] = 0x03;

		reg0[1] = 0x03;

	} else {

	else

		reg0[1] = 0x07;

		reg0[1] = 0x07;

	}





	// setup register 1

	// setup register 1

	if (params->frequency < 1630000) {

	if (c->frequency < 1630000)

		reg1[1] = 0x2c;

		reg1[1] = 0x2c;

	} else {

	else

		reg1[1] = 0x0c;

		reg1[1] = 0x0c;

	}



	if (_P == 64)

	if (_P == 64)

		reg1[1] |= 0x40;

		reg1[1] |= 0x40;

	if (params->frequency >= 1525000)

	if (c->frequency >= 1525000)

		reg1[1] |= 0x80;

		reg1[1] |= 0x80;





	// register 2

	// register 2

	reg2[1] = (_R >> 8) & 0x03;

	reg2[1] = (_R >> 8) & 0x03;

	reg2[2] = _R;

	reg2[2] = _R;

	if (params->frequency < 1455000) {

	if (c->frequency < 1455000)

		reg2[1] |= 0x1c;

		reg2[1] |= 0x1c;

	} else if (params->frequency < 1630000) {

	else if (c->frequency < 1630000)

		reg2[1] |= 0x0c;

		reg2[1] |= 0x0c;

	} else {

	else

		reg2[1] |= 0x1c;

		reg2[1] |= 0x1c;

	}





	// The N divisor ratio (note: params->frequency is in kHz, but we need it in Hz)

	/*

	prediv = (params->frequency * _R) / (_ri / 1000);

	 * The N divisor ratio (note: c->frequency is in kHz, but we

	 * need it in Hz)

	 */

	prediv = (c->frequency * _R) / (_ri / 1000);

	div = prediv / _P;

	div = prediv / _P;

	reg1[1] |= (div >> 9) & 0x03;

	reg1[1] |= (div >> 9) & 0x03;

	reg1[2] = div >> 1;

	reg1[2] = div >> 1;