| Message ID | 20200921094200.10126-1-pawel.harlozinski@linux.intel.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v2,1/1] ALSA: hda: Refactor calculating SDnFMT according to specification | expand |
diff --git a/sound/hda/hdac_device.c b/sound/hda/hdac_device.c index 3e9e9ac804f6..ccc47a10ba63 100644 --- a/sound/hda/hdac_device.c +++ b/sound/hda/hdac_device.c @@ -764,7 +764,14 @@ unsigned int snd_hdac_calc_stream_format(unsigned int rate, val |= AC_FMT_BITS_16; break; case 20: + val |= AC_FMT_BITS_20; + break; case 24: + if (maxbps >= 24) + val |= AC_FMT_BITS_24; + else + val |= AC_FMT_BITS_20; + break; case 32: if (maxbps >= 32 || format == SNDRV_PCM_FORMAT_FLOAT_LE) val |= AC_FMT_BITS_32;
Fix setting SDnFMT based on High Definition Audio Specification Rev. 1.0a page 48. Bits per Sample (BITS): 000 = 8 bits. The data will be packed in memory in 8-bit containers on 16-bit boundaries. 001 = 16 bits. The data will be packed in memory in 16-bit containers on 16-bit boundaries. 010 = 20 bits. The data will be packed in memory in 32-bit containers on 32-bit boundaries. 011 = 24 bits. The data will be packed in memory in 32-bit containers on 32-bit boundaries. 100 = 32 bits. The data will be packed in memory in 32-bit containers on 32-bit boundaries. 101-111 = Reserved Set SDnFMT depending on which format was given. Henceforth split cases for formats 20, 24, 32 bits, but leave constraints to maxbps. Change-Id: I97771b16da14e85b7f35372f5dfc87bb13bb5ce0 Signed-off-by: Pawel Harlozinski <pawel.harlozinski@linux.intel.com> --- sound/hda/hdac_device.c | 7 +++++++ 1 file changed, 7 insertions(+)