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authorAndrew Johnson <ajohnson@intrinsyc.com>2007-02-02 17:21:50 +0100
committerJaroslav Kysela <perex@suse.cz>2007-02-09 09:03:47 +0100
commita8f5d0a5d02cda0183c6e68d6a66d4c6641149a9 (patch)
tree440b21b913e3c3c14a7c3fa7b50232b81b58e711 /sound
parent596ce32b74dccf53ef59cc9ba2e95a2a34ba921c (diff)
[ALSA] soc - ASoC 0.13 pxa2xx DMA
This patch updates the pxa2xx I2S driver to the new API in ASoC 0.13. Changes:- o Added check in hw_params to detect buffer less pcms (i.e. BT <--> codec). o Updated structures to new API o Removed DAI's and ac97 ops from PCM header. o Integer hardware constraint added for periods. Signed-off-by: Andrew Johnson <ajohnson@intrinsyc.com> Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/pxa/pxa2xx-pcm.c11
-rw-r--r--sound/soc/pxa/pxa2xx-pcm.h14
2 files changed, 10 insertions, 15 deletions
diff --git a/sound/soc/pxa/pxa2xx-pcm.c b/sound/soc/pxa/pxa2xx-pcm.c
index ff32f892287e..35e8fa3a469c 100644
--- a/sound/soc/pxa/pxa2xx-pcm.c
+++ b/sound/soc/pxa/pxa2xx-pcm.c
@@ -76,13 +76,18 @@ static int pxa2xx_pcm_hw_params(struct snd_pcm_substream *substream,
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 pxa2xx_pcm_dma_params *dma = rtd->cpu_dai->dma_data;
+ struct pxa2xx_pcm_dma_params *dma = rtd->dai->cpu_dai->dma_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;
int ret;
+ /* return if this is a bufferless transfer e.g.
+ * codec <--> BT codec or GSM modem -- lg FIXME */
+ if (!dma)
+ return 0;
+
/* this may get called several times by oss emulation
* with different params */
if (prtd->params == NULL) {
@@ -227,6 +232,10 @@ static int pxa2xx_pcm_open(struct snd_pcm_substream *substream)
if (ret)
goto out;
+ ret = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
+ if (ret < 0)
+ goto out;
+
prtd = kzalloc(sizeof(struct pxa2xx_runtime_data), GFP_KERNEL);
if (prtd == NULL) {
ret = -ENOMEM;
diff --git a/sound/soc/pxa/pxa2xx-pcm.h b/sound/soc/pxa/pxa2xx-pcm.h
index 0b55f070da27..54c9c755e508 100644
--- a/sound/soc/pxa/pxa2xx-pcm.h
+++ b/sound/soc/pxa/pxa2xx-pcm.h
@@ -28,21 +28,7 @@ struct pxa2xx_gpio {
u32 frm;
};
-/* pxa2xx DAI ID's */
-#define PXA2XX_DAI_AC97_HIFI 0
-#define PXA2XX_DAI_AC97_AUX 1
-#define PXA2XX_DAI_AC97_MIC 2
-#define PXA2XX_DAI_I2S 0
-#define PXA2XX_DAI_SSP1 0
-#define PXA2XX_DAI_SSP2 1
-#define PXA2XX_DAI_SSP3 2
-
-extern struct snd_soc_cpu_dai pxa_ac97_dai[3];
-extern struct snd_soc_cpu_dai pxa_i2s_dai;
-extern struct snd_soc_cpu_dai pxa_ssp_dai[3];
-
/* platform data */
extern struct snd_soc_platform pxa2xx_soc_platform;
-extern struct snd_ac97_bus_ops pxa2xx_ac97_ops;
#endif

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