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V4L/DVB (4479): LNB voltage control was inverted for the benefit of geniatech cards on Kworld

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1) It sets LNBDCPol differently based on the card type. Now it should
work properly for both the kworld and geniatech cards.
2) It stops returning an error for the SEC_VOLTAGE_OFF voltage command
(the cx88-dvb level handles the actual voltage on/off, but it still
passes the ioctl down to the cx24123 level, which previously rejected
the OFF as invalid so the ioctl would report failure)

Acked-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Yeasah Pell <yeasah@schwide.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Yeasah Pell 2006-09-26 12:30:14 -03:00 committed by Mauro Carvalho Chehab
parent 8d90ee5e0e
commit ef76856d26
3 changed files with 11 additions and 0 deletions
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7
drivers/media/dvb/frontends/cx24123.c
View file

@ -661,6 +661,10 @@ static int cx24123_initfe(struct dvb_frontend* fe)
for (i = 0; i < sizeof(cx24123_regdata) / sizeof(cx24123_regdata[0]); i++)
cx24123_writereg(state, cx24123_regdata[i].reg, cx24123_regdata[i].data);
/* Set the LNB polarity */
if(state->config->lnb_polarity)
cx24123_writereg(state, 0x32, cx24123_readreg(state, 0x32) | 0x02);
return 0;
}
@ -678,6 +682,9 @@ static int cx24123_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage
case SEC_VOLTAGE_18:
dprintk("%s: setting voltage 18V\n", __FUNCTION__);
return cx24123_writereg(state, 0x29, val | 0x80);
case SEC_VOLTAGE_OFF:
/* already handled in cx88-dvb */
return 0;
default:
return -EINVAL;
};

3
drivers/media/dvb/frontends/cx24123.h
View file

@ -30,6 +30,9 @@ struct cx24123_config
/* Need to set device param for start_dma */
int (*set_ts_params)(struct dvb_frontend* fe, int is_punctured);
/* 0 = LNB voltage normal, 1 = LNB voltage inverted */
int lnb_polarity;
};
#if defined(CONFIG_DVB_CX24123) || defined(CONFIG_DVB_CX24123_MODULE)

1
drivers/media/video/cx88/cx88-dvb.c
View file

@ -498,6 +498,7 @@ static struct cx24123_config hauppauge_novas_config = {
static struct cx24123_config kworld_dvbs_100_config = {
.demod_address = 0x15,
.set_ts_params = cx24123_set_ts_param,
.lnb_polarity = 1,
};
static int dvb_register(struct cx8802_dev *dev)