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[media] mt2266: use DVBv5 parameters for set_params()

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

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2011-12-20 21:49:12 -03:00
parent 9f1791618a
commit 82c0126ff2
1 changed files with 14 additions and 11 deletions
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25
drivers/media/common/tuners/mt2266.c
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@ -124,6 +124,7 @@ static u8 mt2266_vhf[] = { 0x1d, 0xfe, 0x00, 0x00, 0xb4, 0x03, 0xa5, 0xa5,
static int mt2266_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *params)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct mt2266_priv *priv;
int ret=0;
u32 freq;
@ -135,30 +136,32 @@ static int mt2266_set_params(struct dvb_frontend *fe, struct dvb_frontend_parame
priv = fe->tuner_priv;
freq = params->frequency / 1000; // Hz -> kHz
freq = priv->frequency / 1000; /* Hz -> kHz */
if (freq < 470000 && freq > 230000)
return -EINVAL; /* Gap between VHF and UHF bands */
priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0;
priv->frequency = freq * 1000;
priv->frequency = c->frequency;
tune = 2 * freq * (8192/16) / (FREF/16);
band = (freq < 300000) ? MT2266_VHF : MT2266_UHF;
if (band == MT2266_VHF)
tune *= 2;
switch (params->u.ofdm.bandwidth) {
case BANDWIDTH_6_MHZ:
switch (c->bandwidth_hz) {
case 6000000:
mt2266_writeregs(priv, mt2266_init_6mhz,
sizeof(mt2266_init_6mhz));
priv->bandwidth = BANDWIDTH_6_MHZ;
break;
case BANDWIDTH_7_MHZ:
mt2266_writeregs(priv, mt2266_init_7mhz,
sizeof(mt2266_init_7mhz));
break;
case BANDWIDTH_8_MHZ:
default:
case 8000000:
mt2266_writeregs(priv, mt2266_init_8mhz,
sizeof(mt2266_init_8mhz));
priv->bandwidth = BANDWIDTH_8_MHZ;
break;
case 7000000:
default:
mt2266_writeregs(priv, mt2266_init_7mhz,
sizeof(mt2266_init_7mhz));
priv->bandwidth = BANDWIDTH_7_MHZ;
break;
}