static int pcm20_getflags(struct pcm20_device *dev, __u32 *flags, __u16 *signal)
{
/* okay, check for signal, stereo and rds here... */
int i;
unsigned char buf;
if ((i=aci_rw_cmd(ACI_READ_TUNERSTATION, -1, -1))<0)
return i;
#ifdef DEBUG
printk("check_sig: 0x%x\n", i);
#endif
if (i & 0x80) {
/* no signal from tuner */
*flags=0;
*signal=0;
return 0;
} else
*signal=0xffff;
if ((i=aci_rw_cmd(ACI_READ_TUNERSTEREO, -1, -1))<0)
return i;
if (i & 0x40) {
*flags=0;
} else {
/* stereo */
*flags=VIDEO_TUNER_STEREO_ON;
/* I can't see stereo, when forced to mono */
dev->stereo=1;
}
if ((i=aci_rds_cmd(RDS_STATUS, &buf, 1))<0)
return i;
if (buf & 1)
/* RDS available */
*flags|=VIDEO_TUNER_RDS_ON;
else
return 0;
if ((i=aci_rds_cmd(RDS_RXVALUE, &buf, 1))<0)
return i;
#ifdef DEBUG
printk("rds-signal: %d\n", buf);
#endif
if (buf > 15) {
printk("miropcm20-radio: RX strengths unexpected high...\n");
buf=15;
}
/* refine signal */
if ((*signal=SCALE(15, 0xffff, buf))==0)
*signal = 1;
return 0;
}
static int pcm20_setfreq(struct pcm20_device *dev, unsigned long freq)
{
unsigned char freql;
unsigned char freqh;
dev->freq=freq;
freq /= 160;
if (!(aci_version==0x07 || aci_version>=0xb0))
freq /= 10; /* I don't know exactly which version
* needs this hack */
freql = freq & 0xff;
freqh = freq >> 8;
aci_rds_cmd(RDS_RESET, NULL, 0);
pcm20_stereo(dev, 1);
return aci_rw_cmd(ACI_WRITE_TUNE, freql, freqh);
}
