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| author | Adrian Knoth <adi@drcomp.erfurt.thur.de> | 2011-02-23 11:43:09 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-02-23 15:42:28 +0100 |
| commit | 483cee77d2be6c22ef67ac8c6711e757d138a538 (patch) | |
| tree | b9fc379a7642a9a0627c6c7c2ce7570b05ec94ca | |
| parent | 432d2500ac11ca88532e08716813b189a27f74a9 (diff) | |
| download | linux-483cee77d2be6c22ef67ac8c6711e757d138a538.tar.gz linux-483cee77d2be6c22ef67ac8c6711e757d138a538.tar.bz2 linux-483cee77d2be6c22ef67ac8c6711e757d138a538.zip | |
ALSA: hdspm - Fix buffer handling on RME MADI/MADIface/AES(32)
Only RayDAT and AIO provide sane buffer pointers that can be used with
HDSPM_BufferPositionMask, on all other cards, this would result in a
wrong HW pointer leading to xruns and these messages:
[260808.916788] BUG: pcmC0D0p:0, pos = 2976, buffer size = 1024, period size = 512
[260808.961124] BUG: pcmC0D0c:0, pos = 4944, buffer size = 1024, period size = 512
Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | sound/pci/rme9652/hdspm.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c index 92588975f580..509a35a881f5 100644 --- a/sound/pci/rme9652/hdspm.c +++ b/sound/pci/rme9652/hdspm.c @@ -1231,8 +1231,17 @@ static snd_pcm_uframes_t hdspm_hw_pointer(struct hdspm *hdspm) int position; position = hdspm_read(hdspm, HDSPM_statusRegister); - position &= HDSPM_BufferPositionMask; - position /= 4; /* Bytes per sample */ + + switch (hdspm->io_type) { + case RayDAT: + case AIO: + position &= HDSPM_BufferPositionMask; + position /= 4; /* Bytes per sample */ + break; + default: + position = (position & HDSPM_BufferID) ? + (hdspm->period_bytes / 4) : 0; + } return position; } |