aboutsummaryrefslogtreecommitdiff
path: root/sound/soc/blackfin/bf5xx-ac97-pcm.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/blackfin/bf5xx-ac97-pcm.c')
-rw-r--r--sound/soc/blackfin/bf5xx-ac97-pcm.c80
1 files changed, 49 insertions, 31 deletions
diff --git a/sound/soc/blackfin/bf5xx-ac97-pcm.c b/sound/soc/blackfin/bf5xx-ac97-pcm.c
index 25e50d2ea1e..4be1a490f4f 100644
--- a/sound/soc/blackfin/bf5xx-ac97-pcm.c
+++ b/sound/soc/blackfin/bf5xx-ac97-pcm.c
@@ -43,24 +43,34 @@
#include "bf5xx-ac97.h"
#include "bf5xx-sport.h"
-#if defined(CONFIG_SND_MMAP_SUPPORT)
+static unsigned int ac97_chan_mask[] = {
+ SP_FL, /* Mono */
+ SP_STEREO, /* Stereo */
+ SP_2DOT1, /* 2.1*/
+ SP_QUAD,/*Quadraquic*/
+ SP_FL | SP_FR | SP_FC | SP_SL | SP_SR,/*5 channels */
+ SP_5DOT1, /* 5.1 */
+};
+
+#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
static void bf5xx_mmap_copy(struct snd_pcm_substream *substream,
snd_pcm_uframes_t count)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct sport_device *sport = runtime->private_data;
+ unsigned int chan_mask = ac97_chan_mask[runtime->channels - 1];
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- bf5xx_pcm_to_ac97(
- (struct ac97_frame *)sport->tx_dma_buf + sport->tx_pos,
- (__u32 *)runtime->dma_area + sport->tx_pos, count);
+ bf5xx_pcm_to_ac97((struct ac97_frame *)sport->tx_dma_buf +
+ sport->tx_pos, (__u16 *)runtime->dma_area + sport->tx_pos *
+ runtime->channels, count, chan_mask);
sport->tx_pos += runtime->period_size;
if (sport->tx_pos >= runtime->buffer_size)
sport->tx_pos %= runtime->buffer_size;
sport->tx_delay_pos = sport->tx_pos;
} else {
- bf5xx_ac97_to_pcm(
- (struct ac97_frame *)sport->rx_dma_buf + sport->rx_pos,
- (__u32 *)runtime->dma_area + sport->rx_pos, count);
+ bf5xx_ac97_to_pcm((struct ac97_frame *)sport->rx_dma_buf +
+ sport->rx_pos, (__u16 *)runtime->dma_area + sport->rx_pos *
+ runtime->channels, count);
sport->rx_pos += runtime->period_size;
if (sport->rx_pos >= runtime->buffer_size)
sport->rx_pos %= runtime->buffer_size;
@@ -71,7 +81,7 @@ static void bf5xx_mmap_copy(struct snd_pcm_substream *substream,
static void bf5xx_dma_irq(void *data)
{
struct snd_pcm_substream *pcm = data;
-#if defined(CONFIG_SND_MMAP_SUPPORT)
+#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
struct snd_pcm_runtime *runtime = pcm->runtime;
struct sport_device *sport = runtime->private_data;
bf5xx_mmap_copy(pcm, runtime->period_size);
@@ -90,7 +100,7 @@ static void bf5xx_dma_irq(void *data)
* The total rx/tx buffer is for ac97 frame to hold all pcm data
* is 0x20000 * sizeof(struct ac97_frame) / 4.
*/
-#ifdef CONFIG_SND_MMAP_SUPPORT
+#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
static const struct snd_pcm_hardware bf5xx_pcm_hardware = {
.info = SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_MMAP |
@@ -123,10 +133,20 @@ static int bf5xx_pcm_hw_params(struct snd_pcm_substream *substream,
static int bf5xx_pcm_hw_free(struct snd_pcm_substream *substream)
{
+#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
struct snd_pcm_runtime *runtime = substream->runtime;
+ struct sport_device *sport = runtime->private_data;
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- memset(runtime->dma_area, 0, runtime->buffer_size);
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ sport->once = 0;
+ if (runtime->dma_area)
+ memset(runtime->dma_area, 0, runtime->buffer_size);
+ memset(sport->tx_dma_buf, 0, runtime->buffer_size *
+ sizeof(struct ac97_frame));
+ } else
+ memset(sport->rx_dma_buf, 0, runtime->buffer_size *
+ sizeof(struct ac97_frame));
+#endif
snd_pcm_lib_free_pages(substream);
return 0;
}
@@ -139,7 +159,7 @@ static int bf5xx_pcm_prepare(struct snd_pcm_substream *substream)
/* An intermediate buffer is introduced for implementing mmap for
* SPORT working in TMD mode(include AC97).
*/
-#if defined(CONFIG_SND_MMAP_SUPPORT)
+#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
sport_set_tx_callback(sport, bf5xx_dma_irq, substream);
sport_config_tx_dma(sport, sport->tx_dma_buf, runtime->periods,
@@ -174,23 +194,21 @@ static int bf5xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
case SNDRV_PCM_TRIGGER_START:
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
bf5xx_mmap_copy(substream, runtime->period_size);
- snd_pcm_period_elapsed(substream);
sport->tx_delay_pos = 0;
sport_tx_start(sport);
- }
- else
+ } else
sport_rx_start(sport);
break;
case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-#if defined(CONFIG_SND_MMAP_SUPPORT)
+#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
sport->tx_pos = 0;
#endif
sport_tx_stop(sport);
} else {
-#if defined(CONFIG_SND_MMAP_SUPPORT)
+#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
sport->rx_pos = 0;
#endif
sport_rx_stop(sport);
@@ -208,7 +226,7 @@ static snd_pcm_uframes_t bf5xx_pcm_pointer(struct snd_pcm_substream *substream)
struct sport_device *sport = runtime->private_data;
unsigned int curr;
-#if defined(CONFIG_SND_MMAP_SUPPORT)
+#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
curr = sport->tx_delay_pos;
else
@@ -257,14 +275,16 @@ static int bf5xx_pcm_close(struct snd_pcm_substream *substream)
pr_debug("%s enter\n", __func__);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
sport->once = 0;
- memset(sport->tx_dma_buf, 0, runtime->buffer_size * sizeof(struct ac97_frame));
+ memset(sport->tx_dma_buf, 0, runtime->buffer_size *
+ sizeof(struct ac97_frame));
} else
- memset(sport->rx_dma_buf, 0, runtime->buffer_size * sizeof(struct ac97_frame));
+ memset(sport->rx_dma_buf, 0, runtime->buffer_size *
+ sizeof(struct ac97_frame));
return 0;
}
-#ifdef CONFIG_SND_MMAP_SUPPORT
+#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
static int bf5xx_pcm_mmap(struct snd_pcm_substream *substream,
struct vm_area_struct *vma)
{
@@ -286,13 +306,11 @@ static int bf5xx_pcm_copy(struct snd_pcm_substream *substream, int channel,
substream->stream ? "Capture" : "Playback", pos, count);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- bf5xx_pcm_to_ac97(
- (struct ac97_frame *)runtime->dma_area + pos,
- buf, count);
+ bf5xx_pcm_to_ac97((struct ac97_frame *)runtime->dma_area + pos,
+ (__u16 *)buf, count, chan_mask);
else
- bf5xx_ac97_to_pcm(
- (struct ac97_frame *)runtime->dma_area + pos,
- buf, count);
+ bf5xx_ac97_to_pcm((struct ac97_frame *)runtime->dma_area + pos,
+ (__u16 *)buf, count);
return 0;
}
#endif
@@ -306,7 +324,7 @@ struct snd_pcm_ops bf5xx_pcm_ac97_ops = {
.prepare = bf5xx_pcm_prepare,
.trigger = bf5xx_pcm_trigger,
.pointer = bf5xx_pcm_pointer,
-#ifdef CONFIG_SND_MMAP_SUPPORT
+#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
.mmap = bf5xx_pcm_mmap,
#else
.copy = bf5xx_pcm_copy,
@@ -344,7 +362,7 @@ static int bf5xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream)
* Need to allocate local buffer when enable
* MMAP for SPORT working in TMD mode (include AC97).
*/
-#if defined(CONFIG_SND_MMAP_SUPPORT)
+#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
if (!sport_handle->tx_dma_buf) {
sport_handle->tx_dma_buf = dma_alloc_coherent(NULL, \
@@ -381,7 +399,7 @@ static void bf5xx_pcm_free_dma_buffers(struct snd_pcm *pcm)
struct snd_pcm_substream *substream;
struct snd_dma_buffer *buf;
int stream;
-#if defined(CONFIG_SND_MMAP_SUPPORT)
+#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
size_t size = bf5xx_pcm_hardware.buffer_bytes_max *
sizeof(struct ac97_frame) / 4;
#endif
@@ -395,7 +413,7 @@ static void bf5xx_pcm_free_dma_buffers(struct snd_pcm *pcm)
continue;
dma_free_coherent(NULL, buf->bytes, buf->area, 0);
buf->area = NULL;
-#if defined(CONFIG_SND_MMAP_SUPPORT)
+#if defined(CONFIG_SND_BF5XX_MMAP_SUPPORT)
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
if (sport_handle->tx_dma_buf)
dma_free_coherent(NULL, size, \
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-31 02:18:09 +0000