Contributors: 6
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Srinivas Kandagatla |
373 |
93.02% |
6 |
54.55% |
| Rohit kumar |
14 |
3.49% |
1 |
9.09% |
| Stephan Gerhold |
7 |
1.75% |
1 |
9.09% |
| Kuninori Morimoto |
3 |
0.75% |
1 |
9.09% |
| Krzysztof Kozlowski |
3 |
0.75% |
1 |
9.09% |
| Pierre-Louis Bossart |
1 |
0.25% |
1 |
9.09% |
| Total |
401 |
|
11 |
|
// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2018, Linaro Limited.
// Copyright (c) 2018, The Linux Foundation. All rights reserved.
#include <dt-bindings/sound/qcom,q6afe.h>
#include <linux/module.h>
#include <sound/soc.h>
#include "sdw.h"
int qcom_snd_sdw_prepare(struct snd_pcm_substream *substream,
struct sdw_stream_runtime *sruntime,
bool *stream_prepared)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
int ret;
if (!sruntime)
return 0;
switch (cpu_dai->id) {
case WSA_CODEC_DMA_RX_0:
case WSA_CODEC_DMA_RX_1:
case RX_CODEC_DMA_RX_0:
case RX_CODEC_DMA_RX_1:
case TX_CODEC_DMA_TX_0:
case TX_CODEC_DMA_TX_1:
case TX_CODEC_DMA_TX_2:
case TX_CODEC_DMA_TX_3:
break;
default:
return 0;
}
if (*stream_prepared)
return 0;
ret = sdw_prepare_stream(sruntime);
if (ret)
return ret;
/**
* NOTE: there is a strict hw requirement about the ordering of port
* enables and actual WSA881x PA enable. PA enable should only happen
* after soundwire ports are enabled if not DC on the line is
* accumulated resulting in Click/Pop Noise
* PA enable/mute are handled as part of codec DAPM and digital mute.
*/
ret = sdw_enable_stream(sruntime);
if (ret) {
sdw_deprepare_stream(sruntime);
return ret;
}
*stream_prepared = true;
return ret;
}
EXPORT_SYMBOL_GPL(qcom_snd_sdw_prepare);
int qcom_snd_sdw_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct sdw_stream_runtime **psruntime)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *codec_dai;
struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
struct sdw_stream_runtime *sruntime;
int i;
switch (cpu_dai->id) {
case WSA_CODEC_DMA_RX_0:
case RX_CODEC_DMA_RX_0:
case RX_CODEC_DMA_RX_1:
case TX_CODEC_DMA_TX_0:
case TX_CODEC_DMA_TX_1:
case TX_CODEC_DMA_TX_2:
case TX_CODEC_DMA_TX_3:
for_each_rtd_codec_dais(rtd, i, codec_dai) {
sruntime = snd_soc_dai_get_stream(codec_dai, substream->stream);
if (sruntime != ERR_PTR(-ENOTSUPP))
*psruntime = sruntime;
}
break;
}
return 0;
}
EXPORT_SYMBOL_GPL(qcom_snd_sdw_hw_params);
int qcom_snd_sdw_hw_free(struct snd_pcm_substream *substream,
struct sdw_stream_runtime *sruntime, bool *stream_prepared)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
switch (cpu_dai->id) {
case WSA_CODEC_DMA_RX_0:
case WSA_CODEC_DMA_RX_1:
case RX_CODEC_DMA_RX_0:
case RX_CODEC_DMA_RX_1:
case TX_CODEC_DMA_TX_0:
case TX_CODEC_DMA_TX_1:
case TX_CODEC_DMA_TX_2:
case TX_CODEC_DMA_TX_3:
if (sruntime && *stream_prepared) {
sdw_disable_stream(sruntime);
sdw_deprepare_stream(sruntime);
*stream_prepared = false;
}
break;
default:
break;
}
return 0;
}
EXPORT_SYMBOL_GPL(qcom_snd_sdw_hw_free);
MODULE_LICENSE("GPL v2");