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Diffstat (limited to 'sound/soc/ux500/ux500_pcm.c')
-rw-r--r--sound/soc/ux500/ux500_pcm.c76
1 files changed, 16 insertions, 60 deletions
diff --git a/sound/soc/ux500/ux500_pcm.c b/sound/soc/ux500/ux500_pcm.c
index 846fa82a58d0..09b5364e5095 100644
--- a/sound/soc/ux500/ux500_pcm.c
+++ b/sound/soc/ux500/ux500_pcm.c
@@ -28,28 +28,19 @@
#include "ux500_msp_i2s.h"
#include "ux500_pcm.h"
-static struct snd_pcm_hardware ux500_pcm_hw_playback = {
- .info = SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_RESUME |
- SNDRV_PCM_INFO_PAUSE,
- .formats = SNDRV_PCM_FMTBIT_S16_LE |
- SNDRV_PCM_FMTBIT_U16_LE |
- SNDRV_PCM_FMTBIT_S16_BE |
- SNDRV_PCM_FMTBIT_U16_BE,
- .rates = SNDRV_PCM_RATE_KNOT,
- .rate_min = UX500_PLATFORM_MIN_RATE_PLAYBACK,
- .rate_max = UX500_PLATFORM_MAX_RATE_PLAYBACK,
- .channels_min = UX500_PLATFORM_MIN_CHANNELS,
- .channels_max = UX500_PLATFORM_MAX_CHANNELS,
- .buffer_bytes_max = UX500_PLATFORM_BUFFER_BYTES_MAX,
- .period_bytes_min = UX500_PLATFORM_PERIODS_BYTES_MIN,
- .period_bytes_max = UX500_PLATFORM_PERIODS_BYTES_MAX,
- .periods_min = UX500_PLATFORM_PERIODS_MIN,
- .periods_max = UX500_PLATFORM_PERIODS_MAX,
-};
+#define UX500_PLATFORM_MIN_RATE 8000
+#define UX500_PLATFORM_MAX_RATE 48000
+
+#define UX500_PLATFORM_MIN_CHANNELS 1
+#define UX500_PLATFORM_MAX_CHANNELS 8
-static struct snd_pcm_hardware ux500_pcm_hw_capture = {
+#define UX500_PLATFORM_PERIODS_BYTES_MIN 128
+#define UX500_PLATFORM_PERIODS_BYTES_MAX (64 * PAGE_SIZE)
+#define UX500_PLATFORM_PERIODS_MIN 2
+#define UX500_PLATFORM_PERIODS_MAX 48
+#define UX500_PLATFORM_BUFFER_BYTES_MAX (2048 * PAGE_SIZE)
+
+static struct snd_pcm_hardware ux500_pcm_hw = {
.info = SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_RESUME |
@@ -59,8 +50,8 @@ static struct snd_pcm_hardware ux500_pcm_hw_capture = {
SNDRV_PCM_FMTBIT_S16_BE |
SNDRV_PCM_FMTBIT_U16_BE,
.rates = SNDRV_PCM_RATE_KNOT,
- .rate_min = UX500_PLATFORM_MIN_RATE_CAPTURE,
- .rate_max = UX500_PLATFORM_MAX_RATE_CAPTURE,
+ .rate_min = UX500_PLATFORM_MIN_RATE,
+ .rate_max = UX500_PLATFORM_MAX_RATE,
.channels_min = UX500_PLATFORM_MIN_CHANNELS,
.channels_max = UX500_PLATFORM_MAX_CHANNELS,
.buffer_bytes_max = UX500_PLATFORM_BUFFER_BYTES_MAX,
@@ -90,8 +81,6 @@ static void ux500_pcm_dma_hw_free(struct device *dev,
static int ux500_pcm_open(struct snd_pcm_substream *substream)
{
- int stream_id = substream->pstr->stream;
- struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *dai = rtd->cpu_dai;
struct device *dev = dai->dev;
@@ -104,26 +93,7 @@ static int ux500_pcm_open(struct snd_pcm_substream *substream)
snd_pcm_stream_str(substream));
dev_dbg(dev, "%s: Set runtime hwparams.\n", __func__);
- if (stream_id == SNDRV_PCM_STREAM_PLAYBACK)
- snd_soc_set_runtime_hwparams(substream,
- &ux500_pcm_hw_playback);
- else
- snd_soc_set_runtime_hwparams(substream,
- &ux500_pcm_hw_capture);
-
- /* ensure that buffer size is a multiple of period size */
- ret = snd_pcm_hw_constraint_integer(runtime,
- SNDRV_PCM_HW_PARAM_PERIODS);
- if (ret < 0) {
- dev_err(dev, "%s: Error: snd_pcm_hw_constraints failed (%d)\n",
- __func__, ret);
- return ret;
- }
-
- dev_dbg(dev, "%s: Set hw-struct for %s.\n", __func__,
- snd_pcm_stream_str(substream));
- runtime->hw = (stream_id == SNDRV_PCM_STREAM_PLAYBACK) ?
- ux500_pcm_hw_playback : ux500_pcm_hw_capture;
+ snd_soc_set_runtime_hwparams(substream, &ux500_pcm_hw);
mem_data_width = STEDMA40_HALFWORD_WIDTH;
@@ -164,20 +134,6 @@ static int ux500_pcm_open(struct snd_pcm_substream *substream)
return ret;
}
- snd_dmaengine_pcm_set_data(substream, dma_cfg);
-
- return 0;
-}
-
-static int ux500_pcm_close(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *dai = rtd->cpu_dai;
-
- dev_dbg(dai->dev, "%s: Enter\n", __func__);
-
- snd_dmaengine_pcm_close(substream);
-
return 0;
}
@@ -255,7 +211,7 @@ static int ux500_pcm_mmap(struct snd_pcm_substream *substream,
static struct snd_pcm_ops ux500_pcm_ops = {
.open = ux500_pcm_open,
- .close = ux500_pcm_close,
+ .close = snd_dmaengine_pcm_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = ux500_pcm_hw_params,
.hw_free = ux500_pcm_hw_free,