static int tegra_get_dma_ch_id(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct tegra_asoc_utils_data *data = snd_kcontrol_chip(kcontrol);
struct snd_soc_card *card = data->card;
struct snd_soc_pcm_runtime *rtd;
struct snd_pcm_substream *substream;
struct tegra_runtime_data *prtd;
struct dma_chan *chan;
if (data->avp_device_id < 0)
return 0;
rtd = &card->rtd[data->avp_device_id];
substream = rtd->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
if (!substream || !substream->runtime)
return 0;
prtd = (struct tegra_runtime_data *)
snd_dmaengine_pcm_get_data(substream);
if (!prtd)
return 0;
chan = snd_dmaengine_pcm_get_chan(substream);
ucontrol->value.integer.value[0] = chan->chan_id;
return 0;
}
/* this may get called several times by oss emulation */
static int omap_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_pcm_runtime *runtime = substream->runtime;
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct omap_pcm_dma_data *dma_data;
struct dma_slave_config config;
struct dma_chan *chan;
int err = 0;
dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
/* return if this is a bufferless transfer e.g.
* codec <--> BT codec or GSM modem -- lg FIXME */
if (!dma_data)
return 0;
snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
runtime->dma_bytes = params_buffer_bytes(params);
chan = snd_dmaengine_pcm_get_chan(substream);
if (!chan)
return -EINVAL;
/* fills in addr_width and direction */
err = snd_hwparams_to_dma_slave_config(substream, params, &config);
if (err)
return err;
snd_dmaengine_pcm_set_config_from_dai_data(substream,
snd_soc_dai_get_dma_data(rtd->cpu_dai, substream),
&config);
return dmaengine_slave_config(chan, &config);
}
static int sunxi_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct device *dev = rtd->platform->dev;
struct dma_chan *chan = snd_dmaengine_pcm_get_chan(substream);
struct sunxi_dma_params *dmap;
struct dma_slave_config slave_config;
int ret;
dmap = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
ret = snd_hwparams_to_dma_slave_config(substream, params,
&slave_config);
if (ret) {
dev_err(dev, "hw params config failed with err %d\n", ret);
return ret;
}
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
slave_config.src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
slave_config.dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
slave_config.dst_addr = dmap->dma_addr;
slave_config.src_maxburst = 4;
slave_config.dst_maxburst = 4;
slave_config.slave_id = sunxi_slave_id(DRQDST_AUDIO_CODEC, DRQSRC_SDRAM);
} else {
slave_config.src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
slave_config.dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
slave_config.src_addr = dmap->dma_addr;
slave_config.src_maxburst = 4;
slave_config.dst_maxburst = 4;
slave_config.slave_id = sunxi_slave_id(DRQDST_SDRAM, DRQSRC_AUDIO_CODEC);
}
ret = dmaengine_slave_config(chan, &slave_config);
if (ret < 0) {
dev_err(dev, "dma slave config failed with err %d\n", ret);
return ret;
}
#if defined USED_SRAM_ADDR
/*for a23*/
#if defined CONFIG_ARCH_SUN8IW3
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
substream->dma_buffer.addr = 0x00002000;
substream->dma_buffer.area = 0xf0002000;
memset(0xf0002000, 0, 0x4000-0x00002000);
}
#endif
#endif
snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
return 0;
}
static int sunxi_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct device *dev = rtd->platform->dev;
struct dma_chan *chan = snd_dmaengine_pcm_get_chan(substream);
struct sunxi_dma_params *dmap;
struct dma_slave_config slave_config;
int ret;
dmap = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
ret = snd_hwparams_to_dma_slave_config(substream, params,
&slave_config);
if (ret) {
dev_err(dev, "hw params config failed with err %d\n", ret);
return ret;
}
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
slave_config.dst_addr = dmap->dma_addr;
slave_config.src_maxburst = 4;
slave_config.dst_maxburst = 4;
slave_config.slave_id = sunxi_slave_id(DRQDST_DAUDIO_0_TX, DRQSRC_SDRAM);
if (SNDRV_PCM_FORMAT_S16_LE == params_format(params)) {
slave_config.dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
slave_config.src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
} else {
slave_config.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
slave_config.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
}
} else {
slave_config.src_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
slave_config.dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
slave_config.src_addr = dmap->dma_addr;
slave_config.src_maxburst = 4;
slave_config.dst_maxburst = 4;
slave_config.slave_id = sunxi_slave_id(DRQDST_SDRAM, DRQSRC_DAUDIO_0_RX);
}
ret = dmaengine_slave_config(chan, &slave_config);
if (ret < 0) {
dev_err(dev, "dma slave config failed with err %d\n", ret);
return ret;
}
snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
return 0;
}
int tegra_pcm_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct device *dev = rtd->platform->dev;
struct dma_chan *chan;
struct tegra_pcm_dma_params *dmap;
struct dma_slave_config slave_config;
int ret;
if (rtd->dai_link->no_pcm)
return 0;
chan = snd_dmaengine_pcm_get_chan(substream);
dmap = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
if (!dmap)
return 0;
ret = snd_hwparams_to_dma_slave_config(substream, params,
&slave_config);
if (ret) {
dev_err(dev, "hw params config failed with err %d\n", ret);
return ret;
}
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
slave_config.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
slave_config.dst_addr = dmap->addr;
slave_config.dst_maxburst = 4;
} else {
slave_config.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
slave_config.src_addr = dmap->addr;
slave_config.src_maxburst = 4;
}
slave_config.slave_id = dmap->req_sel;
ret = dmaengine_slave_config(chan, &slave_config);
if (ret < 0) {
dev_err(dev, "dma slave config failed with err %d\n", ret);
return ret;
}
snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
return 0;
}
