ASoC: msm: qdsp6v2: Support to configure render mode

Update compress driver to support configuration of
render mode.

CRs-Fixed: 1112258
Change-Id: Iac8c3a3d2df6180c9982c352b1c00ce7a624c167
Signed-off-by: Manish Dewangan <manish@codeaurora.org>

include/uapi/sound/compress_offload.h

@@ -132,6 +132,8 @@ struct snd_compr_audio_info {
 	uint32_t reserved[15];
 } __attribute__((packed, aligned(4)));
 
+#define SNDRV_COMPRESS_RENDER_MODE_AUDIO_MASTER 0
+#define SNDRV_COMPRESS_RENDER_MODE_STC_MASTER 1
 /**
  * enum sndrv_compress_encoder
  * @SNDRV_COMPRESS_ENCODER_PADDING: no of samples appended by the encoder at the
@@ -139,6 +141,7 @@ struct snd_compr_audio_info {
  * @SNDRV_COMPRESS_ENCODER_DELAY: no of samples inserted by the encoder at the
  * beginning of the track
  * @SNDRV_COMPRESS_PATH_DELAY: dsp path delay in microseconds
+ * @SNDRV_COMPRESS_RENDER_MODE: dsp render mode (audio master or stc)
  */
 enum sndrv_compress_encoder {
 	SNDRV_COMPRESS_ENCODER_PADDING = 1,
@@ -146,9 +149,11 @@ enum sndrv_compress_encoder {
 	SNDRV_COMPRESS_MIN_BLK_SIZE = 3,
 	SNDRV_COMPRESS_MAX_BLK_SIZE = 4,
 	SNDRV_COMPRESS_PATH_DELAY = 5,
+	SNDRV_COMPRESS_RENDER_MODE = 6,
 };
 
 #define SNDRV_COMPRESS_PATH_DELAY SNDRV_COMPRESS_PATH_DELAY
+#define SNDRV_COMPRESS_RENDER_MODE SNDRV_COMPRESS_RENDER_MODE
 
 /**
  * struct snd_compr_metadata - compressed stream metadata

sound/soc/msm/qdsp6v2/msm-compress-q6-v2.c

@@ -160,6 +160,8 @@ struct msm_compr_audio {
 	uint32_t stream_available;
 	uint32_t next_stream;
 
+	uint32_t run_mode;
+
 	uint64_t marker_timestamp;
 
 	struct msm_compr_gapless_state gapless_state;
@@ -215,6 +217,34 @@ static int msm_compr_send_dec_params(struct snd_compr_stream *cstream,
 				     struct msm_compr_dec_params *dec_params,
 				     int stream_id);
 
+static int msm_compr_set_render_mode(struct msm_compr_audio *prtd,
+				     uint32_t render_mode) {
+	int ret = -EINVAL;
+	struct audio_client *ac = prtd->audio_client;
+
+	pr_debug("%s, got render mode %u\n", __func__, render_mode);
+
+	if (render_mode == SNDRV_COMPRESS_RENDER_MODE_AUDIO_MASTER) {
+		render_mode = ASM_SESSION_MTMX_STRTR_PARAM_RENDER_DEFAULT;
+	} else if (render_mode == SNDRV_COMPRESS_RENDER_MODE_STC_MASTER) {
+		render_mode = ASM_SESSION_MTMX_STRTR_PARAM_RENDER_LOCAL_STC;
+		prtd->run_mode = ASM_SESSION_CMD_RUN_STARTIME_RUN_WITH_DELAY;
+	} else {
+		pr_err("%s, Invalid render mode %u\n", __func__,
+			render_mode);
+		ret = -EINVAL;
+		goto exit;
+	}
+
+	ret = q6asm_send_mtmx_strtr_render_mode(ac, render_mode);
+	if (ret) {
+		pr_err("%s, Render mode can't be set error %d\n", __func__,
+			ret);
+	}
+exit:
+	return ret;
+}
+
 static int msm_compr_set_volume(struct snd_compr_stream *cstream,
 				uint32_t volume_l, uint32_t volume_r)
 {
@@ -1963,7 +1993,7 @@ static int msm_compr_trigger(struct snd_compr_stream *cstream, int cmd)
 			msm_compr_read_buffer(prtd);
 		}
 		/* issue RUN command for the stream */
-		q6asm_run_nowait(prtd->audio_client, 0, 0, 0);
+		q6asm_run_nowait(prtd->audio_client, prtd->run_mode, 0, 0);
 		break;
 	case SNDRV_PCM_TRIGGER_STOP:
 		spin_lock_irqsave(&prtd->lock, flags);
@@ -2047,7 +2077,8 @@ static int msm_compr_trigger(struct snd_compr_stream *cstream, int cmd)
 				   prtd->gapless_state.gapless_transition);
 		if (!prtd->gapless_state.gapless_transition) {
 			atomic_set(&prtd->start, 1);
-			q6asm_run_nowait(prtd->audio_client, 0, 0, 0);
+			q6asm_run_nowait(prtd->audio_client, prtd->run_mode,
+					 0, 0);
 		}
 		break;
 	case SND_COMPR_TRIGGER_PARTIAL_DRAIN:
@@ -2717,11 +2748,14 @@ static int msm_compr_set_metadata(struct snd_compr_stream *cstream,
 		return -EINVAL;
 	}
 
-	if (prtd->compr_passthr != LEGACY_PCM) {
+	if (((metadata->key == SNDRV_COMPRESS_ENCODER_PADDING) ||
+	     (metadata->key == SNDRV_COMPRESS_ENCODER_DELAY)) &&
+	     (prtd->compr_passthr != LEGACY_PCM)) {
 		pr_debug("%s: No trailing silence for compress_type[%d]\n",
 			__func__, prtd->compr_passthr);
 		return 0;
 	}
+
 	ac = prtd->audio_client;
 	if (metadata->key == SNDRV_COMPRESS_ENCODER_PADDING) {
 		pr_debug("%s, got encoder padding %u", __func__, metadata->value[0]);
@@ -2729,6 +2763,8 @@ static int msm_compr_set_metadata(struct snd_compr_stream *cstream,
 	} else if (metadata->key == SNDRV_COMPRESS_ENCODER_DELAY) {
 		pr_debug("%s, got encoder delay %u", __func__, metadata->value[0]);
 		prtd->gapless_state.initial_samples_drop = metadata->value[0];
+	} else if (metadata->key == SNDRV_COMPRESS_RENDER_MODE) {
+		return msm_compr_set_render_mode(prtd, metadata->value[0]);
 	}
 
 	return 0;