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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-10-11 22:34:07 +0400 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-10-11 22:34:07 +0400 |
| commit | 9d93551188069a0a21e664b4bfc89ed4a6df1903 (patch) | |
| tree | bcf7334c0e57323a6844b8147ce1c92180fe8cef /sound/firewire/amdtp.c | |
| parent | dd4cae8bf16611053ee7b00e20aa4fa945b92b99 (diff) | |
| parent | bfe01a5ba2490f299e1d2d5508cbbbadd897bbe9 (diff) | |
| download | linux-9d93551188069a0a21e664b4bfc89ed4a6df1903.tar.xz | |
Merge tag 'v3.17' into next
Synchronize with mainline to bring in changes to Synaptics and i8042
drivers.
Diffstat (limited to 'sound/firewire/amdtp.c')
| -rw-r--r-- | sound/firewire/amdtp.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c index f96bf4c7c232..95fc2eaf11dc 100644 --- a/sound/firewire/amdtp.c +++ b/sound/firewire/amdtp.c @@ -507,7 +507,16 @@ static void amdtp_pull_midi(struct amdtp_stream *s, static void update_pcm_pointers(struct amdtp_stream *s, struct snd_pcm_substream *pcm, unsigned int frames) -{ unsigned int ptr; +{ + unsigned int ptr; + + /* + * In IEC 61883-6, one data block represents one event. In ALSA, one + * event equals to one PCM frame. But Dice has a quirk to transfer + * two PCM frames in one data block. + */ + if (s->double_pcm_frames) + frames *= 2; ptr = s->pcm_buffer_pointer + frames; if (ptr >= pcm->runtime->buffer_size) |