kpriv/linux-hardened
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

ASoC: fsl: Use common DAI DMA data struct

Browse source 
Use the common DAI DMA data struct for fsl/imx, this allows us to use the common
helper function to configure the DMA slave config based on the DAI DMA data.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Lars-Peter Clausen 2013-04-03 11:06:04 +02:00 committed by Mark Brown
parent 3489d5067a
commit a8909c9bc5
6 changed files with 47 additions and 47 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

23
sound/soc/fsl/fsl_ssi.c
View file

@ -27,6 +27,7 @@
#include <sound/pcm_params.h>
#include <sound/initval.h>
#include <sound/soc.h>
#include <sound/dmaengine_pcm.h>
#include "fsl_ssi.h"
#include "imx-pcm.h"
@ -122,8 +123,10 @@ struct fsl_ssi_private {
bool ssi_on_imx;
struct clk *clk;
struct platform_device *imx_pcm_pdev;
struct imx_pcm_dma_params dma_params_tx;
struct imx_pcm_dma_params dma_params_rx;
struct snd_dmaengine_dai_dma_data dma_params_tx;
struct snd_dmaengine_dai_dma_data dma_params_rx;
struct imx_dma_data filter_data_tx;
struct imx_dma_data filter_data_rx;
struct {
unsigned int rfrc;
@ -738,14 +741,18 @@ static int fsl_ssi_probe(struct platform_device *pdev)
* We have burstsize be "fifo_depth - 2" to match the SSI
* watermark setting in fsl_ssi_startup().
*/
ssi_private->dma_params_tx.burstsize =
ssi_private->dma_params_tx.maxburst =
ssi_private->fifo_depth - 2;
ssi_private->dma_params_rx.burstsize =
ssi_private->dma_params_rx.maxburst =
ssi_private->fifo_depth - 2;
ssi_private->dma_params_tx.dma_addr =
ssi_private->dma_params_tx.addr =
ssi_private->ssi_phys + offsetof(struct ccsr_ssi, stx0);
ssi_private->dma_params_rx.dma_addr =
ssi_private->dma_params_rx.addr =
ssi_private->ssi_phys + offsetof(struct ccsr_ssi, srx0);
ssi_private->dma_params_tx.filter_data =
&ssi_private->filter_data_tx;
ssi_private->dma_params_rx.filter_data =
&ssi_private->filter_data_rx;
/*
* TODO: This is a temporary solution and should be changed
* to use generic DMA binding later when the helplers get in.
@ -760,9 +767,9 @@ static int fsl_ssi_probe(struct platform_device *pdev)
shared = of_device_is_compatible(of_get_parent(np),
"fsl,spba-bus");
imx_pcm_dma_params_init_data(&ssi_private->dma_params_tx,
imx_pcm_dma_params_init_data(&ssi_private->filter_data_tx,
dma_events[0], shared);
imx_pcm_dma_params_init_data(&ssi_private->dma_params_rx,
imx_pcm_dma_params_init_data(&ssi_private->filter_data_rx,
dma_events[1], shared);
}

23
sound/soc/fsl/imx-pcm-dma.c
View file

@ -34,10 +34,12 @@
static bool filter(struct dma_chan *chan, void *param)
{
struct snd_dmaengine_dai_dma_data *dma_data = param;
if (!imx_dma_is_general_purpose(chan))
return false;
chan->private = param;
chan->private = dma_data->filter_data;
return true;
}
@ -47,23 +49,16 @@ static int snd_imx_pcm_hw_params(struct snd_pcm_substream *substream,
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct dma_chan *chan = snd_dmaengine_pcm_get_chan(substream);
struct imx_pcm_dma_params *dma_params;
struct dma_slave_config slave_config;
int ret;
dma_params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
ret = snd_hwparams_to_dma_slave_config(substream, params, &slave_config);
if (ret)
return ret;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
slave_config.dst_addr = dma_params->dma_addr;
slave_config.dst_maxburst = dma_params->burstsize;
} else {
slave_config.src_addr = dma_params->dma_addr;
slave_config.src_maxburst = dma_params->burstsize;
}
snd_dmaengine_pcm_set_config_from_dai_data(substream,
snd_soc_dai_get_dma_data(rtd->cpu_dai, substream),
&slave_config);
ret = dmaengine_slave_config(chan, &slave_config);
if (ret)
@ -96,13 +91,11 @@ static struct snd_pcm_hardware snd_imx_hardware = {
static int snd_imx_open(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct imx_pcm_dma_params *dma_params;
snd_soc_set_runtime_hwparams(substream, &snd_imx_hardware);
dma_params = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
return snd_dmaengine_pcm_open(substream, filter, &dma_params->dma_data);
return snd_dmaengine_pcm_open(substream, filter,
snd_soc_dai_get_dma_data(rtd->cpu_dai, substream));
}
static struct snd_pcm_ops imx_pcm_ops = {

4
sound/soc/fsl/imx-pcm-fiq.c
View file

@ -299,8 +299,8 @@ int imx_pcm_fiq_init(struct platform_device *pdev)
imx_ssi_fiq_base = (unsigned long)ssi->base;
ssi->dma_params_tx.burstsize = 4;
ssi->dma_params_rx.burstsize = 6;
ssi->dma_params_tx.maxburst = 4;
ssi->dma_params_rx.maxburst = 6;
ret = snd_soc_register_platform(&pdev->dev, &imx_soc_platform_fiq);
if (ret)

16
sound/soc/fsl/imx-pcm.h
View file

@ -20,22 +20,16 @@
*/
#define IMX_SSI_DMABUF_SIZE (64 * 1024)
struct imx_pcm_dma_params {
unsigned long dma_addr;
int burstsize;
struct imx_dma_data dma_data;
};
static inline void
imx_pcm_dma_params_init_data(struct imx_pcm_dma_params *params,
imx_pcm_dma_params_init_data(struct imx_dma_data *dma_data,
int dma, bool shared)
{
params->dma_data.dma_request = dma;
params->dma_data.priority = DMA_PRIO_HIGH;
dma_data->dma_request = dma;
dma_data->priority = DMA_PRIO_HIGH;
if (shared)
params->dma_data.peripheral_type = IMX_DMATYPE_SSI_SP;
dma_data->peripheral_type = IMX_DMATYPE_SSI_SP;
else
params->dma_data.peripheral_type = IMX_DMATYPE_SSI;
dma_data->peripheral_type = IMX_DMATYPE_SSI;
}
int snd_imx_pcm_mmap(struct snd_pcm_substream *substream,

21
sound/soc/fsl/imx-ssi.c
View file

@ -236,7 +236,7 @@ static int imx_ssi_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *cpu_dai)
{
struct imx_ssi *ssi = snd_soc_dai_get_drvdata(cpu_dai);
struct imx_pcm_dma_params *dma_data;
struct snd_dmaengine_dai_dma_data *dma_data;
/* Tx/Rx config */
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
@ -369,8 +369,8 @@ static int imx_ssi_dai_probe(struct snd_soc_dai *dai)
snd_soc_dai_set_drvdata(dai, ssi);
val = SSI_SFCSR_TFWM0(ssi->dma_params_tx.burstsize) |
SSI_SFCSR_RFWM0(ssi->dma_params_rx.burstsize);
val = SSI_SFCSR_TFWM0(ssi->dma_params_tx.maxburst) |
SSI_SFCSR_RFWM0(ssi->dma_params_rx.maxburst);
writel(val, ssi->base + SSI_SFCSR);
return 0;
@ -570,21 +570,24 @@ static int imx_ssi_probe(struct platform_device *pdev)
writel(0x0, ssi->base + SSI_SIER);
ssi->dma_params_rx.dma_addr = res->start + SSI_SRX0;
ssi->dma_params_tx.dma_addr = res->start + SSI_STX0;
ssi->dma_params_rx.addr = res->start + SSI_SRX0;
ssi->dma_params_tx.addr = res->start + SSI_STX0;
ssi->dma_params_tx.burstsize = 6;
ssi->dma_params_rx.burstsize = 4;
ssi->dma_params_tx.maxburst = 6;
ssi->dma_params_rx.maxburst = 4;
ssi->dma_params_tx.filter_data = &ssi->filter_data_tx;
ssi->dma_params_rx.filter_data = &ssi->filter_data_rx;
res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx0");
if (res) {
imx_pcm_dma_params_init_data(&ssi->dma_params_tx, res->start,
imx_pcm_dma_params_init_data(&ssi->filter_data_tx, res->start,
false);
}
res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx0");
if (res) {
imx_pcm_dma_params_init_data(&ssi->dma_params_rx, res->start,
imx_pcm_dma_params_init_data(&ssi->filter_data_rx, res->start,
false);
}

7
sound/soc/fsl/imx-ssi.h
View file

@ -187,6 +187,7 @@
#include <linux/dmaengine.h>
#include <linux/platform_data/dma-imx.h>
#include <sound/dmaengine_pcm.h>
#include "imx-pcm.h"
struct imx_ssi {
@ -204,8 +205,10 @@ struct imx_ssi {
void (*ac97_reset) (struct snd_ac97 *ac97);
void (*ac97_warm_reset)(struct snd_ac97 *ac97);
struct imx_pcm_dma_params dma_params_rx;
struct imx_pcm_dma_params dma_params_tx;
struct snd_dmaengine_dai_dma_data dma_params_rx;
struct snd_dmaengine_dai_dma_data dma_params_tx;
struct imx_dma_data filter_data_tx;
struct imx_dma_data filter_data_rx;
int enabled;