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[media] m88rs2000: LNB voltage control implemented

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Trival patch to get it working with my cards stuff.

Signed-off-by: Igor M. Liplianin <liplianin@me.by>
Acked-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Igor M. Liplianin 2012-05-08 04:25:24 -03:00 committed by Mauro Carvalho Chehab
parent 6ae009a8ba
commit 38431a98a1
1 changed files with 19 additions and 3 deletions
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22
drivers/media/dvb/frontends/m88rs2000.c
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@ -416,9 +416,25 @@ static int m88rs2000_tab_set(struct m88rs2000_state *state,
static int m88rs2000_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t volt)
{
deb_info("%s: %s\n", __func__,
volt == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" :
volt == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" : "??");
struct m88rs2000_state *state = fe->demodulator_priv;
u8 data;
data = m88rs2000_demod_read(state, 0xb2);
data |= 0x03; /* bit0 V/H, bit1 off/on */
switch (volt) {
case SEC_VOLTAGE_18:
data &= ~0x03;
break;
case SEC_VOLTAGE_13:
data &= ~0x03;
data |= 0x01;
break;
case SEC_VOLTAGE_OFF:
break;
}
m88rs2000_demod_write(state, 0xb2, data);
return 0;
}