diff options
| author | Daniel Mack <daniel@caiaq.de> | 2010-03-19 17:52:55 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-03-19 22:37:29 +0300 |
| commit | fd23b7dee5e4d369f620979cb120f53629389355 (patch) | |
| tree | bbfa4637b0b97662b8ee63922eccb01913baaf1d /include/sound | |
| parent | 093208f5d03980d7216b706e3c54432d0f299e26 (diff) | |
| download | linux-fd23b7dee5e4d369f620979cb120f53629389355.tar.xz | |
ASoC: move dma_data from snd_soc_dai to snd_soc_pcm_stream
This fixes a memory corruption when ASoC devices are used in
full-duplex mode. Specifically for pxa-ssp code, where this pointer
is dynamically allocated for each direction and destroyed upon each
stream start.
All other platforms are fixed blindly, I couldn't even compile-test
them. Sorry for any breakage I may have caused.
Reported-by: Sven Neumann <s.neumann@raumfeld.com>
Reported-by: Michael Hirsch <m.hirsch@raumfeld.com>
Signed-off-by: Daniel Mack <daniel@caiaq.de>
Acked-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Acked-by: Jarkko Nikula <jhnikula@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'include/sound')
| -rw-r--r-- | include/sound/soc-dai.h | 18 | ||||
| -rw-r--r-- | include/sound/soc.h | 1 |
2 files changed, 18 insertions, 1 deletions
diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h index 6cf76a41501e..377693a14385 100644 --- a/include/sound/soc-dai.h +++ b/include/sound/soc-dai.h @@ -224,7 +224,6 @@ struct snd_soc_dai { struct snd_soc_codec *codec; unsigned int active; unsigned char pop_wait:1; - void *dma_data; /* DAI private data */ void *private_data; @@ -235,4 +234,21 @@ struct snd_soc_dai { struct list_head list; }; +static inline void *snd_soc_dai_get_dma_data(const struct snd_soc_dai *dai, + const struct snd_pcm_substream *ss) +{ + return (ss->stream == SNDRV_PCM_STREAM_PLAYBACK) ? + dai->playback.dma_data : dai->capture.dma_data; +} + +static inline void snd_soc_dai_set_dma_data(struct snd_soc_dai *dai, + const struct snd_pcm_substream *ss, + void *data) +{ + if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK) + dai->playback.dma_data = data; + else + dai->capture.dma_data = data; +} + #endif diff --git a/include/sound/soc.h b/include/sound/soc.h index dbfec16015de..b8bac6ae6244 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -376,6 +376,7 @@ struct snd_soc_pcm_stream { unsigned int channels_min; /* min channels */ unsigned int channels_max; /* max channels */ unsigned int active; /* num of active users of the stream */ + void *dma_data; /* used by platform code */ }; /* SoC audio ops */ |