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path: root/sound/pci/rme9652/rme9652.c
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Diffstat (limited to 'sound/pci/rme9652/rme9652.c')
-rw-r--r--sound/pci/rme9652/rme9652.c41
1 files changed, 23 insertions, 18 deletions
diff --git a/sound/pci/rme9652/rme9652.c b/sound/pci/rme9652/rme9652.c
index e76f737ac9e8..7755e19aa776 100644
--- a/sound/pci/rme9652/rme9652.c
+++ b/sound/pci/rme9652/rme9652.c
@@ -208,8 +208,11 @@ struct snd_rme9652 {
unsigned char ds_channels;
unsigned char ss_channels; /* different for hammerfall/hammerfall-light */
- struct snd_dma_buffer *playback_dma_buf;
- struct snd_dma_buffer *capture_dma_buf;
+ /* DMA buffers; those are copied instances from the original snd_dma_buf
+ * objects (which are managed via devres) for the address alignments
+ */
+ struct snd_dma_buffer playback_dma_buf;
+ struct snd_dma_buffer capture_dma_buf;
unsigned char *capture_buffer; /* suitably aligned address */
unsigned char *playback_buffer; /* suitably aligned address */
@@ -1719,30 +1722,32 @@ static void snd_rme9652_card_free(struct snd_card *card)
static int snd_rme9652_initialize_memory(struct snd_rme9652 *rme9652)
{
- unsigned long pb_bus, cb_bus;
+ struct snd_dma_buffer *capture_dma, *playback_dma;
- rme9652->capture_dma_buf =
- snd_hammerfall_get_buffer(rme9652->pci, RME9652_DMA_AREA_BYTES);
- rme9652->playback_dma_buf =
- snd_hammerfall_get_buffer(rme9652->pci, RME9652_DMA_AREA_BYTES);
- if (!rme9652->capture_dma_buf || !rme9652->playback_dma_buf) {
+ capture_dma = snd_hammerfall_get_buffer(rme9652->pci, RME9652_DMA_AREA_BYTES);
+ playback_dma = snd_hammerfall_get_buffer(rme9652->pci, RME9652_DMA_AREA_BYTES);
+ if (!capture_dma || !playback_dma) {
dev_err(rme9652->card->dev,
"%s: no buffers available\n", rme9652->card_name);
return -ENOMEM;
}
- /* Align to bus-space 64K boundary */
+ /* copy to the own data for alignment */
+ rme9652->capture_dma_buf = *capture_dma;
+ rme9652->playback_dma_buf = *playback_dma;
- cb_bus = ALIGN(rme9652->capture_dma_buf->addr, 0x10000ul);
- pb_bus = ALIGN(rme9652->playback_dma_buf->addr, 0x10000ul);
+ /* Align to bus-space 64K boundary */
+ rme9652->capture_dma_buf.addr = ALIGN(capture_dma->addr, 0x10000ul);
+ rme9652->playback_dma_buf.addr = ALIGN(playback_dma->addr, 0x10000ul);
/* Tell the card where it is */
+ rme9652_write(rme9652, RME9652_rec_buffer, rme9652->capture_dma_buf.addr);
+ rme9652_write(rme9652, RME9652_play_buffer, rme9652->playback_dma_buf.addr);
- rme9652_write(rme9652, RME9652_rec_buffer, cb_bus);
- rme9652_write(rme9652, RME9652_play_buffer, pb_bus);
-
- rme9652->capture_buffer = rme9652->capture_dma_buf->area + (cb_bus - rme9652->capture_dma_buf->addr);
- rme9652->playback_buffer = rme9652->playback_dma_buf->area + (pb_bus - rme9652->playback_dma_buf->addr);
+ rme9652->capture_dma_buf.area += rme9652->capture_dma_buf.addr - capture_dma->addr;
+ rme9652->playback_dma_buf.area += rme9652->playback_dma_buf.addr - playback_dma->addr;
+ rme9652->capture_buffer = rme9652->capture_dma_buf.area;
+ rme9652->playback_buffer = rme9652->playback_dma_buf.area;
return 0;
}
@@ -2259,7 +2264,7 @@ static int snd_rme9652_playback_open(struct snd_pcm_substream *substream)
snd_pcm_set_sync(substream);
runtime->hw = snd_rme9652_playback_subinfo;
- snd_pcm_set_runtime_buffer(substream, rme9652->playback_dma_buf);
+ snd_pcm_set_runtime_buffer(substream, &rme9652->playback_dma_buf);
if (rme9652->capture_substream == NULL) {
rme9652_stop(rme9652);
@@ -2318,7 +2323,7 @@ static int snd_rme9652_capture_open(struct snd_pcm_substream *substream)
snd_pcm_set_sync(substream);
runtime->hw = snd_rme9652_capture_subinfo;
- snd_pcm_set_runtime_buffer(substream, rme9652->capture_dma_buf);
+ snd_pcm_set_runtime_buffer(substream, &rme9652->capture_dma_buf);
if (rme9652->playback_substream == NULL) {
rme9652_stop(rme9652);