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path: root/sound/soc/sh/dma-sh7760.c
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Diffstat (limited to 'sound/soc/sh/dma-sh7760.c')
-rw-r--r--sound/soc/sh/dma-sh7760.c69
1 files changed, 31 insertions, 38 deletions
diff --git a/sound/soc/sh/dma-sh7760.c b/sound/soc/sh/dma-sh7760.c
index baddb1242c7..c85f8eb66c9 100644
--- a/sound/soc/sh/dma-sh7760.c
+++ b/sound/soc/sh/dma-sh7760.c
@@ -13,6 +13,7 @@
*/
#include <linux/module.h>
+#include <linux/gfp.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
@@ -88,29 +89,12 @@ struct camelot_pcm {
#define DMABRG_PREALLOC_BUFFER 32 * 1024
#define DMABRG_PREALLOC_BUFFER_MAX 32 * 1024
-/* support everything the SSI supports */
-#define DMABRG_RATES \
- SNDRV_PCM_RATE_8000_192000
-
-#define DMABRG_FMTS \
- (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | \
- SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_U16_LE | \
- SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_U20_3LE | \
- SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3LE | \
- SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_U32_LE)
-
static struct snd_pcm_hardware camelot_pcm_hardware = {
.info = (SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_BATCH),
- .formats = DMABRG_FMTS,
- .rates = DMABRG_RATES,
- .rate_min = 8000,
- .rate_max = 192000,
- .channels_min = 2,
- .channels_max = 8, /* max of the SSI */
.buffer_bytes_max = DMABRG_PERIOD_MAX,
.period_bytes_min = DMABRG_PERIOD_MIN,
.period_bytes_max = DMABRG_PERIOD_MAX / 2,
@@ -136,7 +120,7 @@ static void camelot_rxdma(void *data)
static int camelot_pcm_open(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct camelot_pcm *cam = &cam_pcm_data[rtd->dai->cpu_dai->id];
+ struct camelot_pcm *cam = &cam_pcm_data[rtd->cpu_dai->id];
int recv = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0:1;
int ret, dmairq;
@@ -149,7 +133,7 @@ static int camelot_pcm_open(struct snd_pcm_substream *substream)
ret = dmabrg_request_irq(dmairq, camelot_rxdma, cam);
if (unlikely(ret)) {
pr_debug("audio unit %d irqs already taken!\n",
- rtd->dai->cpu_dai->id);
+ rtd->cpu_dai->id);
return -EBUSY;
}
(void)dmabrg_request_irq(dmairq + 1,camelot_rxdma, cam);
@@ -158,7 +142,7 @@ static int camelot_pcm_open(struct snd_pcm_substream *substream)
ret = dmabrg_request_irq(dmairq, camelot_txdma, cam);
if (unlikely(ret)) {
pr_debug("audio unit %d irqs already taken!\n",
- rtd->dai->cpu_dai->id);
+ rtd->cpu_dai->id);
return -EBUSY;
}
(void)dmabrg_request_irq(dmairq + 1, camelot_txdma, cam);
@@ -169,7 +153,7 @@ static int camelot_pcm_open(struct snd_pcm_substream *substream)
static int camelot_pcm_close(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct camelot_pcm *cam = &cam_pcm_data[rtd->dai->cpu_dai->id];
+ struct camelot_pcm *cam = &cam_pcm_data[rtd->cpu_dai->id];
int recv = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0:1;
int dmairq;
@@ -190,7 +174,7 @@ static int camelot_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct camelot_pcm *cam = &cam_pcm_data[rtd->dai->cpu_dai->id];
+ struct camelot_pcm *cam = &cam_pcm_data[rtd->cpu_dai->id];
int recv = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0:1;
int ret;
@@ -218,7 +202,7 @@ static int camelot_prepare(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct camelot_pcm *cam = &cam_pcm_data[rtd->dai->cpu_dai->id];
+ struct camelot_pcm *cam = &cam_pcm_data[rtd->cpu_dai->id];
pr_debug("PCM data: addr 0x%08ulx len %d\n",
(u32)runtime->dma_addr, runtime->dma_bytes);
@@ -265,7 +249,7 @@ static inline void dmabrg_rec_dma_stop(struct camelot_pcm *cam)
static int camelot_trigger(struct snd_pcm_substream *substream, int cmd)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct camelot_pcm *cam = &cam_pcm_data[rtd->dai->cpu_dai->id];
+ struct camelot_pcm *cam = &cam_pcm_data[rtd->cpu_dai->id];
int recv = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0:1;
switch (cmd) {
@@ -292,7 +276,7 @@ static snd_pcm_uframes_t camelot_pos(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct camelot_pcm *cam = &cam_pcm_data[rtd->dai->cpu_dai->id];
+ struct camelot_pcm *cam = &cam_pcm_data[rtd->cpu_dai->id];
int recv = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? 0:1;
unsigned long pos;
@@ -326,10 +310,10 @@ static void camelot_pcm_free(struct snd_pcm *pcm)
snd_pcm_lib_preallocate_free_for_all(pcm);
}
-static int camelot_pcm_new(struct snd_card *card,
- struct snd_soc_dai *dai,
- struct snd_pcm *pcm)
+static int camelot_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)
*/
@@ -341,25 +325,34 @@ static int camelot_pcm_new(struct snd_card *card,
return 0;
}
-struct snd_soc_platform sh7760_soc_platform = {
- .name = "sh7760-pcm",
- .pcm_ops = &camelot_pcm_ops,
+static struct snd_soc_platform_driver sh7760_soc_platform = {
+ .ops = &camelot_pcm_ops,
.pcm_new = camelot_pcm_new,
.pcm_free = camelot_pcm_free,
};
-EXPORT_SYMBOL_GPL(sh7760_soc_platform);
-static int __init sh7760_soc_platform_init(void)
+static int sh7760_soc_platform_probe(struct platform_device *pdev)
{
- return snd_soc_register_platform(&sh7760_soc_platform);
+ return snd_soc_register_platform(&pdev->dev, &sh7760_soc_platform);
}
-module_init(sh7760_soc_platform_init);
-static void __exit sh7760_soc_platform_exit(void)
+static int sh7760_soc_platform_remove(struct platform_device *pdev)
{
- snd_soc_unregister_platform(&sh7760_soc_platform);
+ snd_soc_unregister_platform(&pdev->dev);
+ return 0;
}
-module_exit(sh7760_soc_platform_exit);
+
+static struct platform_driver sh7760_pcm_driver = {
+ .driver = {
+ .name = "sh7760-pcm-audio",
+ .owner = THIS_MODULE,
+ },
+
+ .probe = sh7760_soc_platform_probe,
+ .remove = sh7760_soc_platform_remove,
+};
+
+module_platform_driver(sh7760_pcm_driver);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SH7760 Audio DMA (DMABRG) driver");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 22:25:17 +0000