summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--include/sound/pxa2xx-lib.h1
-rw-r--r--sound/arm/pxa2xx-ac97.c13
-rw-r--r--sound/arm/pxa2xx-pcm-lib.c201
-rw-r--r--sound/arm/pxa2xx-pcm.c12
-rw-r--r--sound/arm/pxa2xx-pcm.h2
-rw-r--r--sound/soc/pxa/pxa2xx-ac97.c49
-rw-r--r--sound/soc/pxa/pxa2xx-i2s.c3
-rw-r--r--sound/soc/pxa/pxa2xx-pcm.c32
8 files changed, 85 insertions, 228 deletions
diff --git a/include/sound/pxa2xx-lib.h b/include/sound/pxa2xx-lib.h
index 56e818e4a1cb..6ef629bde164 100644
--- a/include/sound/pxa2xx-lib.h
+++ b/include/sound/pxa2xx-lib.h
@@ -12,7 +12,6 @@ extern int __pxa2xx_pcm_hw_free(struct snd_pcm_substream *substream);
extern int pxa2xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd);
extern snd_pcm_uframes_t pxa2xx_pcm_pointer(struct snd_pcm_substream *substream);
extern int __pxa2xx_pcm_prepare(struct snd_pcm_substream *substream);
-extern void pxa2xx_pcm_dma_irq(int dma_ch, void *dev_id);
extern int __pxa2xx_pcm_open(struct snd_pcm_substream *substream);
extern int __pxa2xx_pcm_close(struct snd_pcm_substream *substream);
extern int pxa2xx_pcm_mmap(struct snd_pcm_substream *substream,
diff --git a/sound/arm/pxa2xx-ac97.c b/sound/arm/pxa2xx-ac97.c
index 38590b322c54..fbd5dad0c484 100644
--- a/sound/arm/pxa2xx-ac97.c
+++ b/sound/arm/pxa2xx-ac97.c
@@ -15,6 +15,7 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/dmaengine.h>
+#include <linux/dma/pxa-dma.h>
#include <sound/core.h>
#include <sound/pcm.h>
@@ -43,7 +44,11 @@ static struct snd_ac97_bus_ops pxa2xx_ac97_ops = {
.reset = pxa2xx_ac97_reset,
};
-static unsigned long pxa2xx_ac97_pcm_out_req = 12;
+static struct pxad_param pxa2xx_ac97_pcm_out_req = {
+ .prio = PXAD_PRIO_LOWEST,
+ .drcmr = 12,
+};
+
static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_out = {
.addr = __PREG(PCDR),
.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES,
@@ -51,7 +56,11 @@ static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_out = {
.filter_data = &pxa2xx_ac97_pcm_out_req,
};
-static unsigned long pxa2xx_ac97_pcm_in_req = 11;
+static struct pxad_param pxa2xx_ac97_pcm_in_req = {
+ .prio = PXAD_PRIO_LOWEST,
+ .drcmr = 11,
+};
+
static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_in = {
.addr = __PREG(PCDR),
.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES,
diff --git a/sound/arm/pxa2xx-pcm-lib.c b/sound/arm/pxa2xx-pcm-lib.c
index 01f8fdc42b1b..e9b98af6b52c 100644
--- a/sound/arm/pxa2xx-pcm-lib.c
+++ b/sound/arm/pxa2xx-pcm-lib.c
@@ -8,6 +8,7 @@
#include <linux/module.h>
#include <linux/dma-mapping.h>
#include <linux/dmaengine.h>
+#include <linux/dma/pxa-dma.h>
#include <sound/core.h>
#include <sound/pcm.h>
@@ -15,8 +16,6 @@
#include <sound/pxa2xx-lib.h>
#include <sound/dmaengine_pcm.h>
-#include <mach/dma.h>
-
#include "pxa2xx-pcm.h"
static const struct snd_pcm_hardware pxa2xx_pcm_hardware = {
@@ -31,7 +30,7 @@ static const struct snd_pcm_hardware pxa2xx_pcm_hardware = {
.period_bytes_min = 32,
.period_bytes_max = 8192 - 32,
.periods_min = 1,
- .periods_max = PAGE_SIZE/sizeof(pxa_dma_desc),
+ .periods_max = 256,
.buffer_bytes_max = 128 * 1024,
.fifo_size = 32,
};
@@ -39,65 +38,29 @@ static const struct snd_pcm_hardware pxa2xx_pcm_hardware = {
int __pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct pxa2xx_runtime_data *rtd = runtime->private_data;
- size_t totsize = params_buffer_bytes(params);
- size_t period = params_period_bytes(params);
- pxa_dma_desc *dma_desc;
- dma_addr_t dma_buff_phys, next_desc_phys;
- u32 dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG;
+ struct dma_chan *chan = snd_dmaengine_pcm_get_chan(substream);
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_dmaengine_dai_dma_data *dma_params;
+ struct dma_slave_config config;
+ int ret;
- /* temporary transition hack */
- switch (rtd->params->addr_width) {
- case DMA_SLAVE_BUSWIDTH_1_BYTE:
- dcmd |= DCMD_WIDTH1;
- break;
- case DMA_SLAVE_BUSWIDTH_2_BYTES:
- dcmd |= DCMD_WIDTH2;
- break;
- case DMA_SLAVE_BUSWIDTH_4_BYTES:
- dcmd |= DCMD_WIDTH4;
- break;
- default:
- /* can't happen */
- break;
- }
+ dma_params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
+ if (!dma_params)
+ return 0;
- switch (rtd->params->maxburst) {
- case 8:
- dcmd |= DCMD_BURST8;
- break;
- case 16:
- dcmd |= DCMD_BURST16;
- break;
- case 32:
- dcmd |= DCMD_BURST32;
- break;
- }
+ ret = snd_hwparams_to_dma_slave_config(substream, params, &config);
+ if (ret)
+ return ret;
- snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
- runtime->dma_bytes = totsize;
+ snd_dmaengine_pcm_set_config_from_dai_data(substream,
+ snd_soc_dai_get_dma_data(rtd->cpu_dai, substream),
+ &config);
- dma_desc = rtd->dma_desc_array;
- next_desc_phys = rtd->dma_desc_array_phys;
- dma_buff_phys = runtime->dma_addr;
- do {
- next_desc_phys += sizeof(pxa_dma_desc);
- dma_desc->ddadr = next_desc_phys;
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- dma_desc->dsadr = dma_buff_phys;
- dma_desc->dtadr = rtd->params->addr;
- } else {
- dma_desc->dsadr = rtd->params->addr;
- dma_desc->dtadr = dma_buff_phys;
- }
- if (period > totsize)
- period = totsize;
- dma_desc->dcmd = dcmd | period | DCMD_ENDIRQEN;
- dma_desc++;
- dma_buff_phys += period;
- } while (totsize -= period);
- dma_desc[-1].ddadr = rtd->dma_desc_array_phys;
+ ret = dmaengine_slave_config(chan, &config);
+ if (ret)
+ return ret;
+
+ snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
return 0;
}
@@ -105,13 +68,6 @@ EXPORT_SYMBOL(__pxa2xx_pcm_hw_params);
int __pxa2xx_pcm_hw_free(struct snd_pcm_substream *substream)
{
- struct pxa2xx_runtime_data *rtd = substream->runtime->private_data;
-
- if (rtd && rtd->params && rtd->params->filter_data) {
- unsigned long req = *(unsigned long *) rtd->params->filter_data;
- DRCMR(req) = 0;
- }
-
snd_pcm_set_runtime_buffer(substream, NULL);
return 0;
}
@@ -119,100 +75,36 @@ EXPORT_SYMBOL(__pxa2xx_pcm_hw_free);
int pxa2xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
{
- struct pxa2xx_runtime_data *prtd = substream->runtime->private_data;
- int ret = 0;
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- DDADR(prtd->dma_ch) = prtd->dma_desc_array_phys;
- DCSR(prtd->dma_ch) = DCSR_RUN;
- break;
-
- case SNDRV_PCM_TRIGGER_STOP:
- case SNDRV_PCM_TRIGGER_SUSPEND:
- case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
- DCSR(prtd->dma_ch) &= ~DCSR_RUN;
- break;
-
- case SNDRV_PCM_TRIGGER_RESUME:
- DCSR(prtd->dma_ch) |= DCSR_RUN;
- break;
- case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
- DDADR(prtd->dma_ch) = prtd->dma_desc_array_phys;
- DCSR(prtd->dma_ch) |= DCSR_RUN;
- break;
-
- default:
- ret = -EINVAL;
- }
-
- return ret;
+ return snd_dmaengine_pcm_trigger(substream, cmd);
}
EXPORT_SYMBOL(pxa2xx_pcm_trigger);
snd_pcm_uframes_t
pxa2xx_pcm_pointer(struct snd_pcm_substream *substream)
{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct pxa2xx_runtime_data *prtd = runtime->private_data;
-
- dma_addr_t ptr = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
- DSADR(prtd->dma_ch) : DTADR(prtd->dma_ch);
- snd_pcm_uframes_t x = bytes_to_frames(runtime, ptr - runtime->dma_addr);
-
- if (x == runtime->buffer_size)
- x = 0;
- return x;
+ return snd_dmaengine_pcm_pointer(substream);
}
EXPORT_SYMBOL(pxa2xx_pcm_pointer);
int __pxa2xx_pcm_prepare(struct snd_pcm_substream *substream)
{
- struct pxa2xx_runtime_data *prtd = substream->runtime->private_data;
- unsigned long req;
-
- if (!prtd || !prtd->params)
- return 0;
-
- if (prtd->dma_ch == -1)
- return -EINVAL;
-
- DCSR(prtd->dma_ch) &= ~DCSR_RUN;
- DCSR(prtd->dma_ch) = 0;
- DCMD(prtd->dma_ch) = 0;
- req = *(unsigned long *) prtd->params->filter_data;
- DRCMR(req) = prtd->dma_ch | DRCMR_MAPVLD;
-
return 0;
}
EXPORT_SYMBOL(__pxa2xx_pcm_prepare);
-void pxa2xx_pcm_dma_irq(int dma_ch, void *dev_id)
-{
- struct snd_pcm_substream *substream = dev_id;
- int dcsr;
-
- dcsr = DCSR(dma_ch);
- DCSR(dma_ch) = dcsr & ~DCSR_STOPIRQEN;
-
- if (dcsr & DCSR_ENDINTR) {
- snd_pcm_period_elapsed(substream);
- } else {
- printk(KERN_ERR "DMA error on channel %d (DCSR=%#x)\n",
- dma_ch, dcsr);
- snd_pcm_stop_xrun(substream);
- }
-}
-EXPORT_SYMBOL(pxa2xx_pcm_dma_irq);
-
int __pxa2xx_pcm_open(struct snd_pcm_substream *substream)
{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_pcm_runtime *runtime = substream->runtime;
- struct pxa2xx_runtime_data *rtd;
+ struct snd_dmaengine_dai_dma_data *dma_params;
int ret;
runtime->hw = pxa2xx_pcm_hardware;
+ dma_params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
+ if (!dma_params)
+ return 0;
+
/*
* For mysterious reasons (and despite what the manual says)
* playback samples are lost if the DMA count is not a multiple
@@ -221,48 +113,27 @@ int __pxa2xx_pcm_open(struct snd_pcm_substream *substream)
ret = snd_pcm_hw_constraint_step(runtime, 0,
SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
if (ret)
- goto out;
+ return ret;
ret = snd_pcm_hw_constraint_step(runtime, 0,
SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 32);
if (ret)
- goto out;
+ return ret;
ret = snd_pcm_hw_constraint_integer(runtime,
SNDRV_PCM_HW_PARAM_PERIODS);
if (ret < 0)
- goto out;
-
- ret = -ENOMEM;
- rtd = kzalloc(sizeof(*rtd), GFP_KERNEL);
- if (!rtd)
- goto out;
- rtd->dma_desc_array =
- dma_alloc_writecombine(substream->pcm->card->dev, PAGE_SIZE,
- &rtd->dma_desc_array_phys, GFP_KERNEL);
- if (!rtd->dma_desc_array)
- goto err1;
+ return ret;
- rtd->dma_ch = -1;
- runtime->private_data = rtd;
- return 0;
-
- err1:
- kfree(rtd);
- out:
- return ret;
+ return snd_dmaengine_pcm_open_request_chan(substream,
+ pxad_filter_fn,
+ dma_params->filter_data);
}
EXPORT_SYMBOL(__pxa2xx_pcm_open);
int __pxa2xx_pcm_close(struct snd_pcm_substream *substream)
{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct pxa2xx_runtime_data *rtd = runtime->private_data;
-
- dma_free_writecombine(substream->pcm->card->dev, PAGE_SIZE,
- rtd->dma_desc_array, rtd->dma_desc_array_phys);
- kfree(rtd);
- return 0;
+ return snd_dmaengine_pcm_close_release_chan(substream);
}
EXPORT_SYMBOL(__pxa2xx_pcm_close);
diff --git a/sound/arm/pxa2xx-pcm.c b/sound/arm/pxa2xx-pcm.c
index 83be8e3f095e..83fcfac97739 100644
--- a/sound/arm/pxa2xx-pcm.c
+++ b/sound/arm/pxa2xx-pcm.c
@@ -46,17 +46,13 @@ static int pxa2xx_pcm_open(struct snd_pcm_substream *substream)
rtd->params = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
client->playback_params : client->capture_params;
- ret = pxa_request_dma("dma", DMA_PRIO_LOW,
- pxa2xx_pcm_dma_irq, substream);
- if (ret < 0)
- goto err2;
- rtd->dma_ch = ret;
ret = client->startup(substream);
if (!ret)
- goto out;
+ goto err2;
+
+ return 0;
- pxa_free_dma(rtd->dma_ch);
err2:
__pxa2xx_pcm_close(substream);
out:
@@ -66,9 +62,7 @@ static int pxa2xx_pcm_open(struct snd_pcm_substream *substream)
static int pxa2xx_pcm_close(struct snd_pcm_substream *substream)
{
struct pxa2xx_pcm_client *client = substream->private_data;
- struct pxa2xx_runtime_data *rtd = substream->runtime->private_data;
- pxa_free_dma(rtd->dma_ch);
client->shutdown(substream);
return __pxa2xx_pcm_close(substream);
diff --git a/sound/arm/pxa2xx-pcm.h b/sound/arm/pxa2xx-pcm.h
index 00330985beec..8fa2b7c9e6b8 100644
--- a/sound/arm/pxa2xx-pcm.h
+++ b/sound/arm/pxa2xx-pcm.h
@@ -13,8 +13,6 @@
struct pxa2xx_runtime_data {
int dma_ch;
struct snd_dmaengine_dai_dma_data *params;
- struct pxa_dma_desc *dma_desc_array;
- dma_addr_t dma_desc_array_phys;
};
struct pxa2xx_pcm_client {
diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c
index 9e4b04e0fbd1..f3de615aacd7 100644
--- a/sound/soc/pxa/pxa2xx-ac97.c
+++ b/sound/soc/pxa/pxa2xx-ac97.c
@@ -15,6 +15,7 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/dmaengine.h>
+#include <linux/dma/pxa-dma.h>
#include <sound/core.h>
#include <sound/ac97_codec.h>
@@ -49,7 +50,11 @@ static struct snd_ac97_bus_ops pxa2xx_ac97_ops = {
.reset = pxa2xx_ac97_cold_reset,
};
-static unsigned long pxa2xx_ac97_pcm_stereo_in_req = 11;
+static struct pxad_param pxa2xx_ac97_pcm_stereo_in_req = {
+ .prio = PXAD_PRIO_LOWEST,
+ .drcmr = 11,
+};
+
static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_stereo_in = {
.addr = __PREG(PCDR),
.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES,
@@ -57,7 +62,11 @@ static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_stereo_in = {
.filter_data = &pxa2xx_ac97_pcm_stereo_in_req,
};
-static unsigned long pxa2xx_ac97_pcm_stereo_out_req = 12;
+static struct pxad_param pxa2xx_ac97_pcm_stereo_out_req = {
+ .prio = PXAD_PRIO_LOWEST,
+ .drcmr = 12,
+};
+
static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_stereo_out = {
.addr = __PREG(PCDR),
.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES,
@@ -65,7 +74,10 @@ static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_stereo_out = {
.filter_data = &pxa2xx_ac97_pcm_stereo_out_req,
};
-static unsigned long pxa2xx_ac97_pcm_aux_mono_out_req = 10;
+static struct pxad_param pxa2xx_ac97_pcm_aux_mono_out_req = {
+ .prio = PXAD_PRIO_LOWEST,
+ .drcmr = 10,
+};
static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_aux_mono_out = {
.addr = __PREG(MODR),
.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES,
@@ -73,7 +85,10 @@ static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_aux_mono_out = {
.filter_data = &pxa2xx_ac97_pcm_aux_mono_out_req,
};
-static unsigned long pxa2xx_ac97_pcm_aux_mono_in_req = 9;
+static struct pxad_param pxa2xx_ac97_pcm_aux_mono_in_req = {
+ .prio = PXAD_PRIO_LOWEST,
+ .drcmr = 9,
+};
static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_aux_mono_in = {
.addr = __PREG(MODR),
.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES,
@@ -81,7 +96,10 @@ static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_aux_mono_in = {
.filter_data = &pxa2xx_ac97_pcm_aux_mono_in_req,
};
-static unsigned long pxa2xx_ac97_pcm_aux_mic_mono_req = 8;
+static struct pxad_param pxa2xx_ac97_pcm_aux_mic_mono_req = {
+ .prio = PXAD_PRIO_LOWEST,
+ .drcmr = 8,
+};
static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_mic_mono_in = {
.addr = __PREG(MCDR),
.addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES,
@@ -89,9 +107,8 @@ static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_mic_mono_in = {
.filter_data = &pxa2xx_ac97_pcm_aux_mic_mono_req,
};
-static int pxa2xx_ac97_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *cpu_dai)
+static int pxa2xx_ac97_hifi_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *cpu_dai)
{
struct snd_dmaengine_dai_dma_data *dma_data;
@@ -105,9 +122,8 @@ static int pxa2xx_ac97_hw_params(struct snd_pcm_substream *substream,
return 0;
}
-static int pxa2xx_ac97_hw_aux_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *cpu_dai)
+static int pxa2xx_ac97_aux_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *cpu_dai)
{
struct snd_dmaengine_dai_dma_data *dma_data;
@@ -121,9 +137,8 @@ static int pxa2xx_ac97_hw_aux_params(struct snd_pcm_substream *substream,
return 0;
}
-static int pxa2xx_ac97_hw_mic_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *cpu_dai)
+static int pxa2xx_ac97_mic_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *cpu_dai)
{
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
return -ENODEV;
@@ -139,15 +154,15 @@ static int pxa2xx_ac97_hw_mic_params(struct snd_pcm_substream *substream,
SNDRV_PCM_RATE_48000)
static const struct snd_soc_dai_ops pxa_ac97_hifi_dai_ops = {
- .hw_params = pxa2xx_ac97_hw_params,
+ .startup = pxa2xx_ac97_hifi_startup,
};
static const struct snd_soc_dai_ops pxa_ac97_aux_dai_ops = {
- .hw_params = pxa2xx_ac97_hw_aux_params,
+ .startup = pxa2xx_ac97_aux_startup,
};
static const struct snd_soc_dai_ops pxa_ac97_mic_dai_ops = {
- .hw_params = pxa2xx_ac97_hw_mic_params,
+ .startup = pxa2xx_ac97_mic_startup,
};
/*
diff --git a/sound/soc/pxa/pxa2xx-i2s.c b/sound/soc/pxa/pxa2xx-i2s.c
index 6b4e40036910..0389cf7b4b1e 100644
--- a/sound/soc/pxa/pxa2xx-i2s.c
+++ b/sound/soc/pxa/pxa2xx-i2s.c
@@ -319,6 +319,9 @@ static int pxa2xx_i2s_probe(struct snd_soc_dai *dai)
/* Along with FIFO servicing */
SAIMR &= ~(SAIMR_RFS | SAIMR_TFS);
+ snd_soc_dai_init_dma_data(dai, &pxa2xx_i2s_pcm_stereo_out,
+ &pxa2xx_i2s_pcm_stereo_in);
+
return 0;
}
diff --git a/sound/soc/pxa/pxa2xx-pcm.c b/sound/soc/pxa/pxa2xx-pcm.c
index 29a3fdbb7b59..9f390398d518 100644
--- a/sound/soc/pxa/pxa2xx-pcm.c
+++ b/sound/soc/pxa/pxa2xx-pcm.c
@@ -15,8 +15,6 @@
#include <linux/dmaengine.h>
#include <linux/of.h>
-#include <mach/dma.h>
-
#include <sound/core.h>
#include <sound/soc.h>
#include <sound/pxa2xx-lib.h>
@@ -27,11 +25,8 @@
static int pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
- struct snd_pcm_runtime *runtime = substream->runtime;
- struct pxa2xx_runtime_data *prtd = runtime->private_data;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_dmaengine_dai_dma_data *dma;
- int ret;
dma = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
@@ -40,40 +35,13 @@ static int pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
if (!dma)
return 0;
- /* this may get called several times by oss emulation
- * with different params */
- if (prtd->params == NULL) {
- prtd->params = dma;
- ret = pxa_request_dma("name", DMA_PRIO_LOW,
- pxa2xx_pcm_dma_irq, substream);
- if (ret < 0)
- return ret;
- prtd->dma_ch = ret;
- } else if (prtd->params != dma) {
- pxa_free_dma(prtd->dma_ch);
- prtd->params = dma;
- ret = pxa_request_dma("name", DMA_PRIO_LOW,
- pxa2xx_pcm_dma_irq, substream);
- if (ret < 0)
- return ret;
- prtd->dma_ch = ret;
- }
-
return __pxa2xx_pcm_hw_params(substream, params);
}
static int pxa2xx_pcm_hw_free(struct snd_pcm_substream *substream)
{
- struct pxa2xx_runtime_data *prtd = substream->runtime->private_data;
-
__pxa2xx_pcm_hw_free(substream);
- if (prtd->dma_ch >= 0) {
- pxa_free_dma(prtd->dma_ch);
- prtd->dma_ch = -1;
- prtd->params = NULL;
- }
-
return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 03:07:36 +0000