diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/sparc/dbri.c | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/sound/sparc/dbri.c b/sound/sparc/dbri.c index cdca8e4a96e..6b090fb66a8 100644 --- a/sound/sparc/dbri.c +++ b/sound/sparc/dbri.c @@ -1044,7 +1044,7 @@ static int setup_descs(struct snd_dbri * dbri, int streamno, unsigned int period { struct dbri_streaminfo *info = &dbri->stream_info[streamno]; __u32 dvma_buffer; - int desc = 0; + int desc; int len; int first_desc = -1; int last_desc = -1; @@ -1087,6 +1087,18 @@ static int setup_descs(struct snd_dbri * dbri, int streamno, unsigned int period len &= ~3; } + /* Free descriptors if pipe has any */ + desc = dbri->pipes[info->pipe].first_desc; + if ( desc >= 0) + do { + dbri->dma->desc[desc].nda = dbri->dma->desc[desc].ba = 0; + desc = dbri->next_desc[desc]; + } while (desc != -1 && desc != dbri->pipes[info->pipe].first_desc); + + dbri->pipes[info->pipe].desc = -1; + dbri->pipes[info->pipe].first_desc = -1; + + desc = 0; while (len > 0) { int mylen; @@ -2054,6 +2066,7 @@ static int snd_dbri_hw_free(struct snd_pcm_substream *substream) struct snd_dbri *dbri = snd_pcm_substream_chip(substream); struct dbri_streaminfo *info = DBRI_STREAM(dbri, substream); int direction; + dprintk(D_USR, "hw_free.\n"); /* hw_free can get called multiple times. Only unmap the DMA once. @@ -2068,7 +2081,10 @@ static int snd_dbri_hw_free(struct snd_pcm_substream *substream) substream->runtime->buffer_size, direction); info->dvma_buffer = 0; } - info->pipe = -1; + if (info->pipe != -1) { + reset_pipe(dbri, info->pipe); + info->pipe = -1; + } return snd_pcm_lib_free_pages(substream); } |