#include <linux/module.h>
#include <linux/init.h>
+#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/dma-mapping.h>
-#include <sound/driver.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <asm/dma.h>
-#include <asm/io.h>
#include <asm/hardware.h>
#include <asm/arch/dma.h>
#include <asm/arch/audio.h>
#define S3C24XX_PCM_DEBUG 0
#if S3C24XX_PCM_DEBUG
-#define DBG(x...) printk(KERN_DEBUG x)
+#define DBG(x...) printk(KERN_DEBUG "s3c24xx-pcm: " x)
#else
#define DBG(x...)
#endif
.info = SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_BLOCK_TRANSFER |
SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_MMAP_VALID,
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_PAUSE |
+ SNDRV_PCM_INFO_RESUME,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_U16_LE |
SNDRV_PCM_FMTBIT_U8 |
dma_addr_t pos = prtd->dma_pos;
int ret;
- DBG("Entered %s\n", __FUNCTION__);
+ DBG("Entered %s\n", __func__);
while (prtd->dma_loaded < prtd->dma_limit) {
unsigned long len = prtd->dma_period;
- DBG("dma_loaded: %d\n",prtd->dma_loaded);
+ DBG("dma_loaded: %d\n", prtd->dma_loaded);
if ((pos + len) > prtd->dma_end) {
len = prtd->dma_end - pos;
DBG(KERN_DEBUG "%s: corrected dma len %ld\n",
- __FUNCTION__, len);
+ __func__, len);
}
- ret = s3c2410_dma_enqueue(prtd->params->channel,
+ ret = s3c2410_dma_enqueue(prtd->params->channel,
substream, pos, len);
if (ret == 0) {
struct snd_pcm_substream *substream = dev_id;
struct s3c24xx_runtime_data *prtd;
- DBG("Entered %s\n", __FUNCTION__);
+ DBG("Entered %s\n", __func__);
if (result == S3C2410_RES_ABORT || result == S3C2410_RES_ERR)
return;
prtd = substream->runtime->private_data;
-
+
if (substream)
snd_pcm_period_elapsed(substream);
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct s3c24xx_pcm_dma_params *dma = rtd->dai->cpu_dai->dma_data;
unsigned long totbytes = params_buffer_bytes(params);
- int ret=0;
+ int ret = 0;
- DBG("Entered %s\n", __FUNCTION__);
+ DBG("Entered %s\n", __func__);
/* return if this is a bufferless transfer e.g.
* codec <--> BT codec or GSM modem -- lg FIXME */
}
}
- /* channel needs configuring for mem=>device, increment memory addr,
- * sync to pclk, half-word transfers to the IIS-FIFO. */
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- s3c2410_dma_devconfig(prtd->params->channel,
- S3C2410_DMASRC_MEM, S3C2410_DISRCC_INC |
- S3C2410_DISRCC_APB, prtd->params->dma_addr);
-
- s3c2410_dma_config(prtd->params->channel,
- prtd->params->dma_size,
- S3C2410_DCON_SYNC_PCLK |
- S3C2410_DCON_HANDSHAKE);
- } else {
- s3c2410_dma_config(prtd->params->channel,
- prtd->params->dma_size,
- S3C2410_DCON_HANDSHAKE |
- S3C2410_DCON_SYNC_PCLK);
-
- s3c2410_dma_devconfig(prtd->params->channel,
- S3C2410_DMASRC_HW, 0x3,
- prtd->params->dma_addr);
- }
-
s3c2410_dma_set_buffdone_fn(prtd->params->channel,
s3c24xx_audio_buffdone);
{
struct s3c24xx_runtime_data *prtd = substream->runtime->private_data;
- DBG("Entered %s\n", __FUNCTION__);
+ DBG("Entered %s\n", __func__);
/* TODO - do we need to ensure DMA flushed */
snd_pcm_set_runtime_buffer(substream, NULL);
struct s3c24xx_runtime_data *prtd = substream->runtime->private_data;
int ret = 0;
- DBG("Entered %s\n", __FUNCTION__);
+ DBG("Entered %s\n", __func__);
/* return if this is a bufferless transfer e.g.
* codec <--> BT codec or GSM modem -- lg FIXME */
if (!prtd->params)
- return 0;
+ return 0;
+
+ /* channel needs configuring for mem=>device, increment memory addr,
+ * sync to pclk, half-word transfers to the IIS-FIFO. */
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ s3c2410_dma_devconfig(prtd->params->channel,
+ S3C2410_DMASRC_MEM, S3C2410_DISRCC_INC |
+ S3C2410_DISRCC_APB, prtd->params->dma_addr);
+
+ s3c2410_dma_config(prtd->params->channel,
+ prtd->params->dma_size,
+ S3C2410_DCON_SYNC_PCLK |
+ S3C2410_DCON_HANDSHAKE);
+ } else {
+ s3c2410_dma_config(prtd->params->channel,
+ prtd->params->dma_size,
+ S3C2410_DCON_HANDSHAKE |
+ S3C2410_DCON_SYNC_PCLK);
+
+ s3c2410_dma_devconfig(prtd->params->channel,
+ S3C2410_DMASRC_HW, 0x3,
+ prtd->params->dma_addr);
+ }
/* flush the DMA channel */
s3c2410_dma_ctrl(prtd->params->channel, S3C2410_DMAOP_FLUSH);
struct s3c24xx_runtime_data *prtd = substream->runtime->private_data;
int ret = 0;
- DBG("Entered %s\n", __FUNCTION__);
+ DBG("Entered %s\n", __func__);
spin_lock(&prtd->lock);
return ret;
}
-static snd_pcm_uframes_t
- s3c24xx_pcm_pointer(struct snd_pcm_substream *substream)
+static snd_pcm_uframes_t
+s3c24xx_pcm_pointer(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct s3c24xx_runtime_data *prtd = runtime->private_data;
unsigned long res;
dma_addr_t src, dst;
- DBG("Entered %s\n", __FUNCTION__);
+ DBG("Entered %s\n", __func__);
spin_lock(&prtd->lock);
s3c2410_dma_getposition(prtd->params->channel, &src, &dst);
spin_unlock(&prtd->lock);
- DBG("Pointer %x %x\n",src,dst);
+ DBG("Pointer %x %x\n", src, dst);
/* we seem to be getting the odd error from the pcm library due
* to out-of-bounds pointers. this is maybe due to the dma engine
struct snd_pcm_runtime *runtime = substream->runtime;
struct s3c24xx_runtime_data *prtd;
- DBG("Entered %s\n", __FUNCTION__);
+ DBG("Entered %s\n", __func__);
snd_soc_set_runtime_hwparams(substream, &s3c24xx_pcm_hardware);
struct snd_pcm_runtime *runtime = substream->runtime;
struct s3c24xx_runtime_data *prtd = runtime->private_data;
- DBG("Entered %s\n", __FUNCTION__);
+ DBG("Entered %s\n", __func__);
- if (prtd)
- kfree(prtd);
- else
+ if (!prtd)
DBG("s3c24xx_pcm_close called with prtd == NULL\n");
+ kfree(prtd);
+
return 0;
}
{
struct snd_pcm_runtime *runtime = substream->runtime;
- DBG("Entered %s\n", __FUNCTION__);
+ DBG("Entered %s\n", __func__);
return dma_mmap_writecombine(substream->pcm->card->dev, vma,
- runtime->dma_area,
- runtime->dma_addr,
- runtime->dma_bytes);
+ runtime->dma_area,
+ runtime->dma_addr,
+ runtime->dma_bytes);
}
static struct snd_pcm_ops s3c24xx_pcm_ops = {
struct snd_dma_buffer *buf = &substream->dma_buffer;
size_t size = s3c24xx_pcm_hardware.buffer_bytes_max;
- DBG("Entered %s\n", __FUNCTION__);
+ DBG("Entered %s\n", __func__);
buf->dev.type = SNDRV_DMA_TYPE_DEV;
buf->dev.dev = pcm->card->dev;
struct snd_dma_buffer *buf;
int stream;
- DBG("Entered %s\n", __FUNCTION__);
+ DBG("Entered %s\n", __func__);
for (stream = 0; stream < 2; stream++) {
substream = pcm->streams[stream].substream;
static u64 s3c24xx_pcm_dmamask = DMA_32BIT_MASK;
-static int s3c24xx_pcm_new(struct snd_card *card,
+static int s3c24xx_pcm_new(struct snd_card *card,
struct snd_soc_codec_dai *dai, struct snd_pcm *pcm)
{
int ret = 0;
- DBG("Entered %s\n", __FUNCTION__);
+ DBG("Entered %s\n", __func__);
if (!card->dev->dma_mask)
card->dev->dma_mask = &s3c24xx_pcm_dmamask;
.pcm_new = s3c24xx_pcm_new,
.pcm_free = s3c24xx_pcm_free_dma_buffers,
};
-
EXPORT_SYMBOL_GPL(s3c24xx_soc_platform);
MODULE_AUTHOR("Ben Dooks, <ben@simtec.co.uk>");
projects / linux-2.6 / blobdiff