/*
- * s3c-dma.c -- ALSA Soc Audio Layer
+ * dma.c -- ALSA Soc Audio Layer
*
* (c) 2006 Wolfson Microelectronics PLC.
* Graeme Gregory graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
#include <mach/hardware.h>
#include <mach/dma.h>
-#include "s3c-dma.h"
+#include "dma.h"
-static const struct snd_pcm_hardware s3c_dma_hardware = {
+static const struct snd_pcm_hardware dma_hardware = {
.info = SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP |
.fifo_size = 32,
};
-struct s3c24xx_runtime_data {
+struct runtime_data {
spinlock_t lock;
int state;
unsigned int dma_loaded;
struct s3c_dma_params *params;
};
-/* s3c_dma_enqueue
+/* dma_enqueue
*
* place a dma buffer onto the queue for the dma system
* to handle.
*/
-static void s3c_dma_enqueue(struct snd_pcm_substream *substream)
+static void dma_enqueue(struct snd_pcm_substream *substream)
{
- struct s3c24xx_runtime_data *prtd = substream->runtime->private_data;
+ struct runtime_data *prtd = substream->runtime->private_data;
dma_addr_t pos = prtd->dma_pos;
unsigned int limit;
int ret;
prtd->dma_pos = pos;
}
-static void s3c24xx_audio_buffdone(struct s3c2410_dma_chan *channel,
+static void audio_buffdone(struct s3c2410_dma_chan *channel,
void *dev_id, int size,
enum s3c2410_dma_buffresult result)
{
struct snd_pcm_substream *substream = dev_id;
- struct s3c24xx_runtime_data *prtd;
+ struct runtime_data *prtd;
pr_debug("Entered %s\n", __func__);
spin_lock(&prtd->lock);
if (prtd->state & ST_RUNNING && !s3c_dma_has_circular()) {
prtd->dma_loaded--;
- s3c_dma_enqueue(substream);
+ dma_enqueue(substream);
}
spin_unlock(&prtd->lock);
}
-static int s3c_dma_hw_params(struct snd_pcm_substream *substream,
+static int dma_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_pcm_runtime *runtime = substream->runtime;
- struct s3c24xx_runtime_data *prtd = runtime->private_data;
+ struct runtime_data *prtd = runtime->private_data;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
unsigned long totbytes = params_buffer_bytes(params);
struct s3c_dma_params *dma =
}
s3c2410_dma_set_buffdone_fn(prtd->params->channel,
- s3c24xx_audio_buffdone);
+ audio_buffdone);
snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
return 0;
}
-static int s3c_dma_hw_free(struct snd_pcm_substream *substream)
+static int dma_hw_free(struct snd_pcm_substream *substream)
{
- struct s3c24xx_runtime_data *prtd = substream->runtime->private_data;
+ struct runtime_data *prtd = substream->runtime->private_data;
pr_debug("Entered %s\n", __func__);
return 0;
}
-static int s3c_dma_prepare(struct snd_pcm_substream *substream)
+static int dma_prepare(struct snd_pcm_substream *substream)
{
- struct s3c24xx_runtime_data *prtd = substream->runtime->private_data;
+ struct runtime_data *prtd = substream->runtime->private_data;
int ret = 0;
pr_debug("Entered %s\n", __func__);
prtd->dma_pos = prtd->dma_start;
/* enqueue dma buffers */
- s3c_dma_enqueue(substream);
+ dma_enqueue(substream);
return ret;
}
-static int s3c_dma_trigger(struct snd_pcm_substream *substream, int cmd)
+static int dma_trigger(struct snd_pcm_substream *substream, int cmd)
{
- struct s3c24xx_runtime_data *prtd = substream->runtime->private_data;
+ struct runtime_data *prtd = substream->runtime->private_data;
int ret = 0;
pr_debug("Entered %s\n", __func__);
}
static snd_pcm_uframes_t
-s3c_dma_pointer(struct snd_pcm_substream *substream)
+dma_pointer(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
- struct s3c24xx_runtime_data *prtd = runtime->private_data;
+ struct runtime_data *prtd = runtime->private_data;
unsigned long res;
dma_addr_t src, dst;
return bytes_to_frames(substream->runtime, res);
}
-static int s3c_dma_open(struct snd_pcm_substream *substream)
+static int dma_open(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
- struct s3c24xx_runtime_data *prtd;
+ struct runtime_data *prtd;
pr_debug("Entered %s\n", __func__);
snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
- snd_soc_set_runtime_hwparams(substream, &s3c_dma_hardware);
+ snd_soc_set_runtime_hwparams(substream, &dma_hardware);
- prtd = kzalloc(sizeof(struct s3c24xx_runtime_data), GFP_KERNEL);
+ prtd = kzalloc(sizeof(struct runtime_data), GFP_KERNEL);
if (prtd == NULL)
return -ENOMEM;
return 0;
}
-static int s3c_dma_close(struct snd_pcm_substream *substream)
+static int dma_close(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
- struct s3c24xx_runtime_data *prtd = runtime->private_data;
+ struct runtime_data *prtd = runtime->private_data;
pr_debug("Entered %s\n", __func__);
if (!prtd)
- pr_debug("s3c_dma_close called with prtd == NULL\n");
+ pr_debug("dma_close called with prtd == NULL\n");
kfree(prtd);
return 0;
}
-static int s3c_dma_mmap(struct snd_pcm_substream *substream,
+static int dma_mmap(struct snd_pcm_substream *substream,
struct vm_area_struct *vma)
{
struct snd_pcm_runtime *runtime = substream->runtime;
runtime->dma_bytes);
}
-static struct snd_pcm_ops s3c_dma_ops = {
- .open = s3c_dma_open,
- .close = s3c_dma_close,
+static struct snd_pcm_ops dma_ops = {
+ .open = dma_open,
+ .close = dma_close,
.ioctl = snd_pcm_lib_ioctl,
- .hw_params = s3c_dma_hw_params,
- .hw_free = s3c_dma_hw_free,
- .prepare = s3c_dma_prepare,
- .trigger = s3c_dma_trigger,
- .pointer = s3c_dma_pointer,
- .mmap = s3c_dma_mmap,
+ .hw_params = dma_hw_params,
+ .hw_free = dma_hw_free,
+ .prepare = dma_prepare,
+ .trigger = dma_trigger,
+ .pointer = dma_pointer,
+ .mmap = dma_mmap,
};
-static int s3c_preallocate_dma_buffer(struct snd_pcm *pcm, int stream)
+static int preallocate_dma_buffer(struct snd_pcm *pcm, int stream)
{
struct snd_pcm_substream *substream = pcm->streams[stream].substream;
struct snd_dma_buffer *buf = &substream->dma_buffer;
- size_t size = s3c_dma_hardware.buffer_bytes_max;
+ size_t size = dma_hardware.buffer_bytes_max;
pr_debug("Entered %s\n", __func__);
return 0;
}
-static void s3c_dma_free_dma_buffers(struct snd_pcm *pcm)
+static void dma_free_dma_buffers(struct snd_pcm *pcm)
{
struct snd_pcm_substream *substream;
struct snd_dma_buffer *buf;
}
}
-static u64 s3c_dma_mask = DMA_BIT_MASK(32);
+static u64 dma_mask = DMA_BIT_MASK(32);
-static int s3c_dma_new(struct snd_card *card,
+static int dma_new(struct snd_card *card,
struct snd_soc_dai *dai, struct snd_pcm *pcm)
{
int ret = 0;
pr_debug("Entered %s\n", __func__);
if (!card->dev->dma_mask)
- card->dev->dma_mask = &s3c_dma_mask;
+ card->dev->dma_mask = &dma_mask;
if (!card->dev->coherent_dma_mask)
card->dev->coherent_dma_mask = 0xffffffff;
if (dai->driver->playback.channels_min) {
- ret = s3c_preallocate_dma_buffer(pcm,
+ ret = preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_PLAYBACK);
if (ret)
goto out;
}
if (dai->driver->capture.channels_min) {
- ret = s3c_preallocate_dma_buffer(pcm,
+ ret = preallocate_dma_buffer(pcm,
SNDRV_PCM_STREAM_CAPTURE);
if (ret)
goto out;
}
- out:
+out:
return ret;
}
-static struct snd_soc_platform_driver s3c24xx_soc_platform = {
- .ops = &s3c_dma_ops,
- .pcm_new = s3c_dma_new,
- .pcm_free = s3c_dma_free_dma_buffers,
+static struct snd_soc_platform_driver samsung_asoc_platform = {
+ .ops = &dma_ops,
+ .pcm_new = dma_new,
+ .pcm_free = dma_free_dma_buffers,
};
-static int __devinit s3c24xx_soc_platform_probe(struct platform_device *pdev)
+static int __devinit samsung_asoc_platform_probe(struct platform_device *pdev)
{
- return snd_soc_register_platform(&pdev->dev, &s3c24xx_soc_platform);
+ return snd_soc_register_platform(&pdev->dev, &samsung_asoc_platform);
}
-static int __devexit s3c24xx_soc_platform_remove(struct platform_device *pdev)
+static int __devexit samsung_asoc_platform_remove(struct platform_device *pdev)
{
snd_soc_unregister_platform(&pdev->dev);
return 0;
}
-static struct platform_driver s3c24xx_pcm_driver = {
+static struct platform_driver asoc_dma_driver = {
.driver = {
- .name = "s3c24xx-pcm-audio",
+ .name = "samsung-audio",
.owner = THIS_MODULE,
},
- .probe = s3c24xx_soc_platform_probe,
- .remove = __devexit_p(s3c24xx_soc_platform_remove),
+ .probe = samsung_asoc_platform_probe,
+ .remove = __devexit_p(samsung_asoc_platform_remove),
};
-static int __init snd_s3c24xx_pcm_init(void)
+static int __init samsung_asoc_init(void)
{
- return platform_driver_register(&s3c24xx_pcm_driver);
+ return platform_driver_register(&asoc_dma_driver);
}
-module_init(snd_s3c24xx_pcm_init);
+module_init(samsung_asoc_init);
-static void __exit snd_s3c24xx_pcm_exit(void)
+static void __exit samsung_asoc_exit(void)
{
- platform_driver_unregister(&s3c24xx_pcm_driver);
+ platform_driver_unregister(&asoc_dma_driver);
}
-module_exit(snd_s3c24xx_pcm_exit);
+module_exit(samsung_asoc_exit);
MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>");
-MODULE_DESCRIPTION("Samsung S3C Audio DMA module");
+MODULE_DESCRIPTION("Samsung ASoC DMA Driver");
MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:s3c24xx-pcm-audio");
+MODULE_ALIAS("platform:samsung-audio");
projects / mv-sheeva.git / blobdiff