Merge "asoc: qdsp6v2: latency mode support for transcode loopback" (274bedc5) · Commits · e / devices / android_kernel_oneplus_sm7250

asoc/msm-transcode-loopback-q6-v2.c

+52 −3

Original line number	Diff line number	Diff line
		@@ -34,6 +34,7 @@
		#include <dsp/msm_audio_ion.h>
		#include <dsp/apr_audio-v2.h>
		#include <dsp/q6asm-v2.h>
		#include <dsp/q6audio-v2.h>

		#include "msm-pcm-routing-v2.h"
		#include "msm-qti-pp-config.h"
		@@ -52,6 +53,7 @@ static DEFINE_MUTEX(transcode_loopback_session_lock);
		struct trans_loopback_pdata {
		struct snd_compr_stream *cstream[MSM_FRONTEND_DAI_MAX];
		uint32_t master_gain;
		int perf_mode;
		};

		struct loopback_stream {
		@@ -344,6 +346,8 @@ static int msm_transcode_loopback_set_params(struct snd_compr_stream *cstream,
		struct msm_transcode_loopback *trans = runtime->private_data;
		struct snd_soc_pcm_runtime *soc_pcm_rx;
		struct snd_soc_pcm_runtime *soc_pcm_tx;
		struct snd_soc_pcm_runtime *rtd;
		struct trans_loopback_pdata *pdata;
		uint32_t bit_width = 16;
		int ret = 0;

		@@ -354,6 +358,9 @@ static int msm_transcode_loopback_set_params(struct snd_compr_stream *cstream,

		mutex_lock(&trans->lock);

		rtd = snd_pcm_substream_chip(cstream);
		pdata = snd_soc_platform_get_drvdata(rtd->platform);

		if (cstream->direction == SND_COMPRESS_PLAYBACK) {
		if (codec_param->codec.id == SND_AUDIOCODEC_PCM) {
		trans->sink.codec_format =
		@@ -435,7 +442,7 @@ static int msm_transcode_loopback_set_params(struct snd_compr_stream *cstream,
		pr_debug("%s: ASM client allocated, callback %pK\n", __func__,
		loopback_event_handler);
		trans->session_id = trans->audio_client->session;
		trans->audio_client->perf_mode = false;
		trans->audio_client->perf_mode = pdata->perf_mode;
		ret = q6asm_open_transcode_loopback(trans->audio_client,
		bit_width,
		trans->source.codec_format,
		@@ -454,7 +461,7 @@ static int msm_transcode_loopback_set_params(struct snd_compr_stream *cstream,
		if (trans->source.codec_format != FORMAT_LINEAR_PCM)
		msm_pcm_routing_reg_phy_compr_stream(
		soc_pcm_tx->dai_link->id,
		trans->audio_client->perf_mode,
		LEGACY_PCM_MODE,
		trans->session_id,
		SNDRV_PCM_STREAM_CAPTURE,
		COMPRESSED_PASSTHROUGH_GEN);
		@@ -467,7 +474,7 @@ static int msm_transcode_loopback_set_params(struct snd_compr_stream *cstream,
		/* Opening Rx ADM in LOW_LATENCY mode by default */
		msm_pcm_routing_reg_phy_stream(
		soc_pcm_rx->dai_link->id,
		true,
		trans->audio_client->perf_mode,
		trans->session_id,
		SNDRV_PCM_STREAM_PLAYBACK);
		pr_debug("%s: Successfully opened ADM sessions\n", __func__);
		@@ -500,6 +507,46 @@ static int msm_transcode_loopback_get_caps(struct snd_compr_stream *cstream,
		return 0;
		}

		static int msm_transcode_loopback_set_metadata(struct snd_compr_stream *cstream,
		struct snd_compr_metadata *metadata)
		{
		struct snd_soc_pcm_runtime *rtd;
		struct trans_loopback_pdata *pdata;

		if (!metadata \|\| !cstream) {
		pr_err("%s: Invalid arguments\n", __func__);
		return -EINVAL;
		}

		rtd = snd_pcm_substream_chip(cstream);
		pdata = snd_soc_platform_get_drvdata(rtd->platform);

		switch (metadata->key) {
		case SNDRV_COMPRESS_LATENCY_MODE:
		{
		switch (metadata->value[0]) {
		case SNDRV_COMPRESS_LEGACY_LATENCY_MODE:
		pdata->perf_mode = LEGACY_PCM_MODE;
		break;
		case SNDRV_COMPRESS_LOW_LATENCY_MODE:
		pdata->perf_mode = LOW_LATENCY_PCM_MODE;
		break;
		default:
		pr_debug("%s: Unsupported latency mode %d, default to Legacy\n",
		__func__, metadata->value[0]);
		pdata->perf_mode = LEGACY_PCM_MODE;
		break;
		}
		}
		break;
		default:
		pr_debug("%s: Unsupported metadata %d\n",
		__func__, metadata->key);
		break;
		}
		return 0;
		}

		static int msm_transcode_stream_cmd_put(struct snd_kcontrol *kcontrol,
		struct snd_ctl_elem_value *ucontrol)
		{
		@@ -1138,6 +1185,7 @@ static struct snd_compr_ops msm_transcode_loopback_ops = {
		.trigger = msm_transcode_loopback_trigger,
		.set_params = msm_transcode_loopback_set_params,
		.get_caps = msm_transcode_loopback_get_caps,
		.set_metadata = msm_transcode_loopback_set_metadata,
		};


		@@ -1152,6 +1200,7 @@ static int msm_transcode_loopback_probe(struct snd_soc_platform *platform)
		if (!pdata)
		return -ENOMEM;

		pdata->perf_mode = LOW_LATENCY_PCM_MODE;
		snd_soc_platform_set_drvdata(platform, pdata);
		return 0;
		}