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ALSA: hdspm - Introduce hdspm_get_aes_sample_rate()

Helper function to return the AES sample rate class. This class needs to
be translated via HDSPM_bit2freq() to get the more common
representation.

Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
isee-imx_3.14.28.y
Adrian Knoth 7 years ago
committed by Takashi Iwai
parent
commit
d3c36ed8e5
1 changed files with 17 additions and 0 deletions
  1. +17
    -0
      sound/pci/rme9652/hdspm.c

+ 17
- 0
sound/pci/rme9652/hdspm.c View File

@ -2224,6 +2224,23 @@ static int hdspm_get_sync_in_sample_rate(struct hdspm *hdspm)
return 0;
}
/**
* Returns the AES sample rate class for the given card.
**/
static int hdspm_get_aes_sample_rate(struct hdspm *hdspm, int index)
{
int timecode;
switch (hdspm->io_type) {
case AES32:
timecode = hdspm_read(hdspm, HDSPM_timecodeRegister);
return (timecode >> (4*index)) & 0xF;
break;
default:
break;
}
return 0;
}
/**
* Returns the sample rate class for input source <idx> for


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