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path: root/sound/pci/rme9652/hdspm.c
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Diffstat (limited to 'sound/pci/rme9652/hdspm.c')
-rw-r--r--sound/pci/rme9652/hdspm.c61
1 files changed, 36 insertions, 25 deletions
diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index 6f5eaa510bbc..81a6f4b2bd3c 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -23,6 +23,9 @@
* Modified 2011-01-14 added S/PDIF input on RayDATs by Adrian Knoth
*
* Modified 2011-01-25 variable period sizes on RayDAT/AIO by Adrian Knoth
+ *
+ * Modified 2019-05-23 fix AIO single speed ADAT capture and playback
+ * by Philippe.Bekaert@uhasselt.be
*/
/* ************* Register Documentation *******************************************************
@@ -1091,9 +1094,9 @@ static int hdspm_autosync_ref(struct hdspm *hdspm);
static int hdspm_set_toggle_setting(struct hdspm *hdspm, u32 regmask, int out);
static int snd_hdspm_set_defaults(struct hdspm *hdspm);
static int hdspm_system_clock_mode(struct hdspm *hdspm);
-static void hdspm_set_sgbuf(struct hdspm *hdspm,
- struct snd_pcm_substream *substream,
- unsigned int reg, int channels);
+static void hdspm_set_channel_dma_addr(struct hdspm *hdspm,
+ struct snd_pcm_substream *substream,
+ unsigned int reg, int channels);
static int hdspm_aes_sync_check(struct hdspm *hdspm, int idx);
static int hdspm_wc_sync_check(struct hdspm *hdspm);
@@ -5574,11 +5577,16 @@ static int snd_hdspm_hw_params(struct snd_pcm_substream *substream,
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- hdspm_set_sgbuf(hdspm, substream, HDSPM_pageAddressBufferOut,
- params_channels(params));
+ for (i = 0; i < params_channels(params); ++i) {
+ int c = hdspm->channel_map_out[i];
- for (i = 0; i < params_channels(params); ++i)
- snd_hdspm_enable_out(hdspm, i, 1);
+ if (c < 0)
+ continue; /* just make sure */
+ hdspm_set_channel_dma_addr(hdspm, substream,
+ HDSPM_pageAddressBufferOut,
+ c);
+ snd_hdspm_enable_out(hdspm, c, 1);
+ }
hdspm->playback_buffer =
(unsigned char *) substream->runtime->dma_area;
@@ -5586,11 +5594,16 @@ static int snd_hdspm_hw_params(struct snd_pcm_substream *substream,
"Allocated sample buffer for playback at %p\n",
hdspm->playback_buffer);
} else {
- hdspm_set_sgbuf(hdspm, substream, HDSPM_pageAddressBufferIn,
- params_channels(params));
-
- for (i = 0; i < params_channels(params); ++i)
- snd_hdspm_enable_in(hdspm, i, 1);
+ for (i = 0; i < params_channels(params); ++i) {
+ int c = hdspm->channel_map_in[i];
+
+ if (c < 0)
+ continue;
+ hdspm_set_channel_dma_addr(hdspm, substream,
+ HDSPM_pageAddressBufferIn,
+ c);
+ snd_hdspm_enable_in(hdspm, c, 1);
+ }
hdspm->capture_buffer =
(unsigned char *) substream->runtime->dma_area;
@@ -5651,19 +5664,17 @@ static int snd_hdspm_hw_free(struct snd_pcm_substream *substream)
struct hdspm *hdspm = snd_pcm_substream_chip(substream);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-
- /* params_channels(params) should be enough,
- but to get sure in case of error */
- for (i = 0; i < hdspm->max_channels_out; ++i)
+ /* Just disable all channels. The saving when disabling a */
+ /* smaller set is not worth the trouble. */
+ for (i = 0; i < HDSPM_MAX_CHANNELS; ++i)
snd_hdspm_enable_out(hdspm, i, 0);
hdspm->playback_buffer = NULL;
} else {
- for (i = 0; i < hdspm->max_channels_in; ++i)
+ for (i = 0; i < HDSPM_MAX_CHANNELS; ++i)
snd_hdspm_enable_in(hdspm, i, 0);
hdspm->capture_buffer = NULL;
-
}
snd_pcm_lib_free_pages(substream);
@@ -6402,17 +6413,17 @@ static int snd_hdspm_preallocate_memory(struct hdspm *hdspm)
return 0;
}
-
-static void hdspm_set_sgbuf(struct hdspm *hdspm,
- struct snd_pcm_substream *substream,
- unsigned int reg, int channels)
+/* Inform the card what DMA addresses to use for the indicated channel. */
+/* Each channel got 16 4K pages allocated for DMA transfers. */
+static void hdspm_set_channel_dma_addr(struct hdspm *hdspm,
+ struct snd_pcm_substream *substream,
+ unsigned int reg, int channel)
{
int i;
- /* continuous memory segment */
- for (i = 0; i < (channels * 16); i++)
+ for (i = channel * 16; i < channel * 16 + 16; i++)
hdspm_write(hdspm, reg + 4 * i,
- snd_pcm_sgbuf_get_addr(substream, 4096 * i));
+ snd_pcm_sgbuf_get_addr(substream, 4096 * i));
}