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@@ -39,8 +39,8 @@
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#include <asm/dma.h>
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#include <asm/dma.h>
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-#include "bf5xx-i2s-pcm.h"
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#include "bf5xx-sport.h"
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#include "bf5xx-sport.h"
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+#include "bf5xx-i2s-pcm.h"
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static void bf5xx_dma_irq(void *data)
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static void bf5xx_dma_irq(void *data)
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{
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{
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@@ -50,7 +50,6 @@ static void bf5xx_dma_irq(void *data)
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static const struct snd_pcm_hardware bf5xx_pcm_hardware = {
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static const struct snd_pcm_hardware bf5xx_pcm_hardware = {
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.info = SNDRV_PCM_INFO_INTERLEAVED |
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.info = SNDRV_PCM_INFO_INTERLEAVED |
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- SNDRV_PCM_INFO_MMAP |
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SNDRV_PCM_INFO_MMAP_VALID |
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SNDRV_PCM_INFO_MMAP_VALID |
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SNDRV_PCM_INFO_BLOCK_TRANSFER,
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SNDRV_PCM_INFO_BLOCK_TRANSFER,
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.formats = SNDRV_PCM_FMTBIT_S16_LE |
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.formats = SNDRV_PCM_FMTBIT_S16_LE |
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@@ -67,10 +66,16 @@ static const struct snd_pcm_hardware bf5xx_pcm_hardware = {
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static int bf5xx_pcm_hw_params(struct snd_pcm_substream *substream,
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static int bf5xx_pcm_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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struct snd_pcm_hw_params *params)
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{
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{
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- size_t size = bf5xx_pcm_hardware.buffer_bytes_max;
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- snd_pcm_lib_malloc_pages(substream, size);
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+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
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+ unsigned int buffer_size = params_buffer_bytes(params);
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+ struct bf5xx_i2s_pcm_data *dma_data;
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- return 0;
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+ dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
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+
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+ if (dma_data->tdm_mode)
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+ buffer_size = buffer_size / params_channels(params) * 8;
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+
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+ return snd_pcm_lib_malloc_pages(substream, buffer_size);
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}
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}
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static int bf5xx_pcm_hw_free(struct snd_pcm_substream *substream)
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static int bf5xx_pcm_hw_free(struct snd_pcm_substream *substream)
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@@ -82,9 +87,16 @@ static int bf5xx_pcm_hw_free(struct snd_pcm_substream *substream)
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static int bf5xx_pcm_prepare(struct snd_pcm_substream *substream)
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static int bf5xx_pcm_prepare(struct snd_pcm_substream *substream)
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{
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{
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+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_pcm_runtime *runtime = substream->runtime;
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struct snd_pcm_runtime *runtime = substream->runtime;
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struct sport_device *sport = runtime->private_data;
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struct sport_device *sport = runtime->private_data;
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int period_bytes = frames_to_bytes(runtime, runtime->period_size);
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int period_bytes = frames_to_bytes(runtime, runtime->period_size);
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+ struct bf5xx_i2s_pcm_data *dma_data;
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+
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+ dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
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+
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+ if (dma_data->tdm_mode)
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+ period_bytes = period_bytes / runtime->channels * 8;
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pr_debug("%s enter\n", __func__);
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pr_debug("%s enter\n", __func__);
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
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@@ -131,10 +143,15 @@ static int bf5xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
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static snd_pcm_uframes_t bf5xx_pcm_pointer(struct snd_pcm_substream *substream)
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static snd_pcm_uframes_t bf5xx_pcm_pointer(struct snd_pcm_substream *substream)
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{
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{
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+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_pcm_runtime *runtime = substream->runtime;
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struct snd_pcm_runtime *runtime = substream->runtime;
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struct sport_device *sport = runtime->private_data;
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struct sport_device *sport = runtime->private_data;
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unsigned int diff;
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unsigned int diff;
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snd_pcm_uframes_t frames;
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snd_pcm_uframes_t frames;
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+ struct bf5xx_i2s_pcm_data *dma_data;
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+
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+ dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
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+
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pr_debug("%s enter\n", __func__);
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pr_debug("%s enter\n", __func__);
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
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if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
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diff = sport_curr_offset_tx(sport);
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diff = sport_curr_offset_tx(sport);
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@@ -151,6 +168,8 @@ static snd_pcm_uframes_t bf5xx_pcm_pointer(struct snd_pcm_substream *substream)
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diff = 0;
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diff = 0;
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frames = bytes_to_frames(substream->runtime, diff);
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frames = bytes_to_frames(substream->runtime, diff);
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+ if (dma_data->tdm_mode)
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+ frames = frames * runtime->channels / 8;
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return frames;
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return frames;
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}
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}
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@@ -162,11 +181,18 @@ static int bf5xx_pcm_open(struct snd_pcm_substream *substream)
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struct sport_device *sport_handle = snd_soc_dai_get_drvdata(cpu_dai);
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struct sport_device *sport_handle = snd_soc_dai_get_drvdata(cpu_dai);
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struct snd_pcm_runtime *runtime = substream->runtime;
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struct snd_pcm_runtime *runtime = substream->runtime;
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struct snd_dma_buffer *buf = &substream->dma_buffer;
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struct snd_dma_buffer *buf = &substream->dma_buffer;
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+ struct bf5xx_i2s_pcm_data *dma_data;
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int ret;
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int ret;
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+ dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
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+
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pr_debug("%s enter\n", __func__);
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pr_debug("%s enter\n", __func__);
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snd_soc_set_runtime_hwparams(substream, &bf5xx_pcm_hardware);
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snd_soc_set_runtime_hwparams(substream, &bf5xx_pcm_hardware);
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+ if (dma_data->tdm_mode)
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+ runtime->hw.buffer_bytes_max /= 4;
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+ else
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+ runtime->hw.info |= SNDRV_PCM_INFO_MMAP;
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ret = snd_pcm_hw_constraint_integer(runtime,
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ret = snd_pcm_hw_constraint_integer(runtime,
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SNDRV_PCM_HW_PARAM_PERIODS);
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SNDRV_PCM_HW_PARAM_PERIODS);
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@@ -202,6 +228,88 @@ static int bf5xx_pcm_mmap(struct snd_pcm_substream *substream,
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return 0 ;
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return 0 ;
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}
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}
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+static int bf5xx_pcm_copy(struct snd_pcm_substream *substream, int channel,
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+ snd_pcm_uframes_t pos, void *buf, snd_pcm_uframes_t count)
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+{
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+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
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+ struct snd_pcm_runtime *runtime = substream->runtime;
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+ unsigned int sample_size = runtime->sample_bits / 8;
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+ struct bf5xx_i2s_pcm_data *dma_data;
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+ unsigned int i;
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+ void *src, *dst;
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+
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+ dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
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+
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+ if (dma_data->tdm_mode) {
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+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
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+ src = buf;
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+ dst = runtime->dma_area;
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+ dst += pos * sample_size * 8;
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+
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+ while (count--) {
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+ for (i = 0; i < runtime->channels; i++) {
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+ memcpy(dst + dma_data->map[i] *
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+ sample_size, src, sample_size);
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+ src += sample_size;
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+ }
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+ dst += 8 * sample_size;
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+ }
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+ } else {
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+ src = runtime->dma_area;
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+ src += pos * sample_size * 8;
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+ dst = buf;
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+
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+ while (count--) {
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+ for (i = 0; i < runtime->channels; i++) {
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+ memcpy(dst, src + dma_data->map[i] *
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+ sample_size, sample_size);
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+ dst += sample_size;
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+ }
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+ src += 8 * sample_size;
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+ }
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+ }
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+ } else {
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+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
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+ src = buf;
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+ dst = runtime->dma_area;
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+ dst += frames_to_bytes(runtime, pos);
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+ } else {
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+ src = runtime->dma_area;
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+ src += frames_to_bytes(runtime, pos);
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+ dst = buf;
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+ }
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+
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+ memcpy(dst, src, frames_to_bytes(runtime, count));
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+ }
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+
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+ return 0;
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+}
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+
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+static int bf5xx_pcm_silence(struct snd_pcm_substream *substream,
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+ int channel, snd_pcm_uframes_t pos, snd_pcm_uframes_t count)
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+{
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+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
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+ struct snd_pcm_runtime *runtime = substream->runtime;
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+ unsigned int sample_size = runtime->sample_bits / 8;
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+ void *buf = runtime->dma_area;
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+ struct bf5xx_i2s_pcm_data *dma_data;
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+ unsigned int offset, size;
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+
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+ dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
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+
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+ if (dma_data->tdm_mode) {
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+ offset = pos * 8 * sample_size;
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+ size = count * 8 * sample_size;
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+ } else {
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+ offset = frames_to_bytes(runtime, pos);
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+ size = frames_to_bytes(runtime, count);
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+ }
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+
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+ snd_pcm_format_set_silence(runtime->format, buf + offset, size);
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+
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+ return 0;
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+}
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+
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static struct snd_pcm_ops bf5xx_pcm_i2s_ops = {
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static struct snd_pcm_ops bf5xx_pcm_i2s_ops = {
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.open = bf5xx_pcm_open,
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.open = bf5xx_pcm_open,
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.ioctl = snd_pcm_lib_ioctl,
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.ioctl = snd_pcm_lib_ioctl,
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@@ -211,57 +319,16 @@ static struct snd_pcm_ops bf5xx_pcm_i2s_ops = {
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.trigger = bf5xx_pcm_trigger,
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.trigger = bf5xx_pcm_trigger,
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.pointer = bf5xx_pcm_pointer,
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.pointer = bf5xx_pcm_pointer,
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.mmap = bf5xx_pcm_mmap,
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.mmap = bf5xx_pcm_mmap,
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+ .copy = bf5xx_pcm_copy,
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+ .silence = bf5xx_pcm_silence,
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};
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};
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-static int bf5xx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream)
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-{
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- struct snd_pcm_substream *substream = pcm->streams[stream].substream;
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- struct snd_dma_buffer *buf = &substream->dma_buffer;
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- size_t size = bf5xx_pcm_hardware.buffer_bytes_max;
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-
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- buf->dev.type = SNDRV_DMA_TYPE_DEV;
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- buf->dev.dev = pcm->card->dev;
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- buf->private_data = NULL;
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- buf->area = dma_alloc_coherent(pcm->card->dev, size,
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- &buf->addr, GFP_KERNEL);
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- if (!buf->area) {
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- pr_err("Failed to allocate dma memory - Please increase uncached DMA memory region\n");
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- return -ENOMEM;
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- }
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- buf->bytes = size;
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-
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- pr_debug("%s, area:%p, size:0x%08lx\n", __func__,
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- buf->area, buf->bytes);
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-
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- return 0;
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-}
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-
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-static void bf5xx_pcm_free_dma_buffers(struct snd_pcm *pcm)
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-{
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- struct snd_pcm_substream *substream;
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- struct snd_dma_buffer *buf;
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- int stream;
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-
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- for (stream = 0; stream < 2; stream++) {
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- substream = pcm->streams[stream].substream;
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- if (!substream)
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- continue;
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-
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- buf = &substream->dma_buffer;
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- if (!buf->area)
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- continue;
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- dma_free_coherent(NULL, buf->bytes, buf->area, 0);
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- buf->area = NULL;
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- }
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-}
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-
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static u64 bf5xx_pcm_dmamask = DMA_BIT_MASK(32);
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static u64 bf5xx_pcm_dmamask = DMA_BIT_MASK(32);
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static int bf5xx_pcm_i2s_new(struct snd_soc_pcm_runtime *rtd)
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static int bf5xx_pcm_i2s_new(struct snd_soc_pcm_runtime *rtd)
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{
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{
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struct snd_card *card = rtd->card->snd_card;
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struct snd_card *card = rtd->card->snd_card;
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- struct snd_pcm *pcm = rtd->pcm;
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- int ret = 0;
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+ size_t size = bf5xx_pcm_hardware.buffer_bytes_max;
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pr_debug("%s enter\n", __func__);
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pr_debug("%s enter\n", __func__);
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if (!card->dev->dma_mask)
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if (!card->dev->dma_mask)
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@@ -269,27 +336,13 @@ static int bf5xx_pcm_i2s_new(struct snd_soc_pcm_runtime *rtd)
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if (!card->dev->coherent_dma_mask)
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if (!card->dev->coherent_dma_mask)
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card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
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card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
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- if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
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- ret = bf5xx_pcm_preallocate_dma_buffer(pcm,
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- SNDRV_PCM_STREAM_PLAYBACK);
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- if (ret)
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- goto out;
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- }
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-
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- if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
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- ret = bf5xx_pcm_preallocate_dma_buffer(pcm,
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- SNDRV_PCM_STREAM_CAPTURE);
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- if (ret)
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- goto out;
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- }
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|
|
|
|
- out:
|
|
|
|
|
- return ret;
|
|
|
|
|
|
|
+ return snd_pcm_lib_preallocate_pages_for_all(rtd->pcm,
|
|
|
|
|
+ SNDRV_DMA_TYPE_DEV, card->dev, size, size);
|
|
|
}
|
|
}
|
|
|
|
|
|
|
|
static struct snd_soc_platform_driver bf5xx_i2s_soc_platform = {
|
|
static struct snd_soc_platform_driver bf5xx_i2s_soc_platform = {
|
|
|
.ops = &bf5xx_pcm_i2s_ops,
|
|
.ops = &bf5xx_pcm_i2s_ops,
|
|
|
.pcm_new = bf5xx_pcm_i2s_new,
|
|
.pcm_new = bf5xx_pcm_i2s_new,
|
|
|
- .pcm_free = bf5xx_pcm_free_dma_buffers,
|
|
|
|
|
};
|
|
};
|
|
|
|
|
|
|
|
static int bfin_i2s_soc_platform_probe(struct platform_device *pdev)
|
|
static int bfin_i2s_soc_platform_probe(struct platform_device *pdev)
|