[alsa-devel] [PATCH 1/4] ASoC: fsi: use SNDRV_DMA_TYPE_DEV for sound buffer
Kuninori Morimoto
kuninori.morimoto.gx at renesas.com
Thu Jun 5 11:00:15 CEST 2014
From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
Current fsi driver is using SNDRV_DMA_TYPE_CONTINUOUS
for snd_pcm_lib_preallocate_pages_for_all().
But, it came from original dma-sh7760.c,
and no longer needed.
This patch exchange its parameter, and removed
original dma mapping and un-needed
dma_sync_single_xxx() from driver.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
---
>> Simon
This patch exchange mach-shmobile port
Can you check this patch ?
arch/arm/mach-shmobile/board-armadillo800eva.c | 4 +++
arch/arm/mach-shmobile/board-kzm9g.c | 2 ++
arch/arm/mach-shmobile/board-mackerel.c | 4 +++
arch/sh/boards/mach-ecovec24/setup.c | 2 ++
sound/soc/sh/fsi.c | 42 +++---------------------
5 files changed, 17 insertions(+), 37 deletions(-)
diff --git a/arch/arm/mach-shmobile/board-armadillo800eva.c b/arch/arm/mach-shmobile/board-armadillo800eva.c
index 2858f38..2ad5f98 100644
--- a/arch/arm/mach-shmobile/board-armadillo800eva.c
+++ b/arch/arm/mach-shmobile/board-armadillo800eva.c
@@ -1005,6 +1005,8 @@ static struct platform_device fsi_wm8978_device = {
.id = 0,
.dev = {
.platform_data = &fsi_wm8978_info,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ .dma_mask = &fsi_wm8978_device.dev.coherent_dma_mask,
},
};
@@ -1028,6 +1030,8 @@ static struct platform_device fsi_hdmi_device = {
.id = 1,
.dev = {
.platform_data = &fsi2_hdmi_info,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ .dma_mask = &fsi_hdmi_device.dev.coherent_dma_mask,
},
};
diff --git a/arch/arm/mach-shmobile/board-kzm9g.c b/arch/arm/mach-shmobile/board-kzm9g.c
index 03dc3ac..9714e31 100644
--- a/arch/arm/mach-shmobile/board-kzm9g.c
+++ b/arch/arm/mach-shmobile/board-kzm9g.c
@@ -603,6 +603,8 @@ static struct platform_device fsi_ak4648_device = {
.name = "asoc-simple-card",
.dev = {
.platform_data = &fsi2_ak4648_info,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ .dma_mask = &fsi_ak4648_device.dev.coherent_dma_mask,
},
};
diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c
index 0ff4d8e..112553f 100644
--- a/arch/arm/mach-shmobile/board-mackerel.c
+++ b/arch/arm/mach-shmobile/board-mackerel.c
@@ -523,6 +523,8 @@ static struct platform_device fsi_hdmi_device = {
.id = 1,
.dev = {
.platform_data = &fsi2_hdmi_info,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ .dma_mask = &fsi_hdmi_device.dev.coherent_dma_mask,
},
};
@@ -919,6 +921,8 @@ static struct platform_device fsi_ak4643_device = {
.name = "asoc-simple-card",
.dev = {
.platform_data = &fsi2_ak4643_info,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ .dma_mask = &fsi_ak4643_device.dev.coherent_dma_mask,
},
};
diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c
index 85d5255..0d30492 100644
--- a/arch/sh/boards/mach-ecovec24/setup.c
+++ b/arch/sh/boards/mach-ecovec24/setup.c
@@ -874,6 +874,8 @@ static struct platform_device fsi_da7210_device = {
.name = "asoc-simple-card",
.dev = {
.platform_data = &fsi_da7210_info,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ .dma_mask = &fsi_da7210_device.dev.coherent_dma_mask,
},
};
diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c
index 710a079..7a6b632 100644
--- a/sound/soc/sh/fsi.c
+++ b/sound/soc/sh/fsi.c
@@ -233,7 +233,6 @@ struct fsi_stream {
*/
struct dma_chan *chan;
struct work_struct work;
- dma_addr_t dma;
int dma_id;
int loop_cnt;
int additional_pos;
@@ -1279,11 +1278,6 @@ static irqreturn_t fsi_interrupt(int irq, void *data)
*/
static int fsi_dma_init(struct fsi_priv *fsi, struct fsi_stream *io)
{
- struct snd_pcm_runtime *runtime = io->substream->runtime;
- struct snd_soc_dai *dai = fsi_get_dai(io->substream);
- enum dma_data_direction dir = fsi_stream_is_play(fsi, io) ?
- DMA_TO_DEVICE : DMA_FROM_DEVICE;
-
/*
* 24bit data : 24bit bus / package in back
* 16bit data : 16bit bus / stream mode
@@ -1293,19 +1287,7 @@ static int fsi_dma_init(struct fsi_priv *fsi, struct fsi_stream *io)
io->loop_cnt = 2; /* push 1st, 2nd period first, then 3rd, 4th... */
io->additional_pos = 0;
- io->dma = dma_map_single(dai->dev, runtime->dma_area,
- snd_pcm_lib_buffer_bytes(io->substream), dir);
- return 0;
-}
-
-static int fsi_dma_quit(struct fsi_priv *fsi, struct fsi_stream *io)
-{
- struct snd_soc_dai *dai = fsi_get_dai(io->substream);
- enum dma_data_direction dir = fsi_stream_is_play(fsi, io) ?
- DMA_TO_DEVICE : DMA_FROM_DEVICE;
- dma_unmap_single(dai->dev, io->dma,
- snd_pcm_lib_buffer_bytes(io->substream), dir);
return 0;
}
@@ -1317,7 +1299,8 @@ static dma_addr_t fsi_dma_get_area(struct fsi_stream *io, int additional)
if (period >= runtime->periods)
period = 0;
- return io->dma + samples_to_bytes(runtime, period * io->period_samples);
+ return runtime->dma_addr +
+ samples_to_bytes(runtime, period * io->period_samples);
}
static void fsi_dma_complete(void *data)
@@ -1325,12 +1308,6 @@ static void fsi_dma_complete(void *data)
struct fsi_stream *io = (struct fsi_stream *)data;
struct fsi_priv *fsi = fsi_stream_to_priv(io);
struct snd_pcm_runtime *runtime = io->substream->runtime;
- struct snd_soc_dai *dai = fsi_get_dai(io->substream);
- enum dma_data_direction dir = fsi_stream_is_play(fsi, io) ?
- DMA_TO_DEVICE : DMA_FROM_DEVICE;
-
- dma_sync_single_for_cpu(dai->dev, fsi_dma_get_area(io, 0),
- samples_to_bytes(runtime, io->period_samples), dir);
io->buff_sample_pos += io->period_samples;
io->period_pos++;
@@ -1369,8 +1346,6 @@ static void fsi_dma_do_work(struct work_struct *work)
for (i = 0; i < io->loop_cnt; i++) {
buf = fsi_dma_get_area(io, io->additional_pos);
- dma_sync_single_for_device(dai->dev, buf, len, dir);
-
desc = dmaengine_prep_slave_single(io->chan, buf, len, dir,
DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
if (!desc) {
@@ -1495,7 +1470,6 @@ static int fsi_dma_remove(struct fsi_priv *fsi, struct fsi_stream *io)
static struct fsi_stream_handler fsi_dma_push_handler = {
.init = fsi_dma_init,
- .quit = fsi_dma_quit,
.probe = fsi_dma_probe,
.transfer = fsi_dma_transfer,
.remove = fsi_dma_remove,
@@ -1850,16 +1824,10 @@ static void fsi_pcm_free(struct snd_pcm *pcm)
static int fsi_pcm_new(struct snd_soc_pcm_runtime *rtd)
{
- struct snd_pcm *pcm = rtd->pcm;
-
- /*
- * dont use SNDRV_DMA_TYPE_DEV, since it will oops the SH kernel
- * in MMAP mode (i.e. aplay -M)
- */
return snd_pcm_lib_preallocate_pages_for_all(
- pcm,
- SNDRV_DMA_TYPE_CONTINUOUS,
- snd_dma_continuous_data(GFP_KERNEL),
+ rtd->pcm,
+ SNDRV_DMA_TYPE_DEV,
+ rtd->card->snd_card->dev,
PREALLOC_BUFFER, PREALLOC_BUFFER_MAX);
}
--
1.7.9.5
More information about the Alsa-devel
mailing list