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V4L/DVB (4727): Support status readout for saa713x based FM radio 

This patch adds readout for stereo and signal level for
saa713x cards which use the saa713x as FM demodulator.
These are many cards based on saa7133, tda8290 and tda8275a.
FM channel search should work now.

Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Hartmut Hackmann 2006-10-06 19:45:23 -03:00 committed by Mauro Carvalho Chehab
parent 7844d75613
commit 2e7cf3ea5a
1 changed files with 5 additions and 1 deletions
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6
drivers/media/video/saa7134/saa7134-video.c
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@ -2248,7 +2248,11 @@ static int radio_do_ioctl(struct inode *inode, struct file *file,
t->type = V4L2_TUNER_RADIO;
saa7134_i2c_call_clients(dev, VIDIOC_G_TUNER, t);
if (dev->input->amux == TV) {
t->signal = 0xf800 - ((saa_readb(0x581) & 0x1f) << 11);
t->rxsubchans = (saa_readb(0x529) & 0x08) ?
V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO;
}
return 0;
}
case VIDIOC_S_TUNER: