acp: add TDM DAI and DMA support for ACP 7.0

Add TDM DAI and DMA support for the AMD ACP
7.0 platform with three instances: HS, SP, and BT.

Signed-off-by: Siva Subramanian Ravi Saravanan <sravisar@amd.com>

Author: Sivasubramanian678

app/boards/acp_7_0_adsp.conf

@@ -14,6 +14,8 @@ CONFIG_INTC_AMD_ACP=y
 CONFIG_DMA_AMD_ACP_HOST=y
 CONFIG_DMA_AMD_ACP_SDW=y
 CONFIG_DAI_AMD_SDW=y
+CONFIG_DMA_AMD_ACP_TDM=y
+CONFIG_DAI_AMD_TDM=y
 CONFIG_AMS=n
 CONFIG_WRAP_ACTUAL_POSITION=y
 CONFIG_TRACE=n

src/audio/dai-zephyr.c

@@ -196,6 +196,14 @@ __cold int dai_set_config(struct dai *dai, struct ipc_config_dai *common_config,
 		cfg.type = DAI_AMD_SDW;
 		cfg_params = &sof_cfg->acpsdw;
 		break;
+	case SOF_DAI_AMD_HS:
+	case SOF_DAI_AMD_HS_VIRTUAL:
+	case SOF_DAI_AMD_SP:
+	case SOF_DAI_AMD_SP_VIRTUAL:
+	case SOF_DAI_AMD_BT:
+		cfg.type = DAI_AMD_TDM;
+		cfg_params = &sof_cfg->acptdm;
+		break;
 	case SOF_DAI_INTEL_UAOL:
 		cfg.type = DAI_INTEL_UAOL;
 		cfg.channels = common_config->gtw_fmt->channels_count;

src/include/ipc/dai-amd.h

@@ -23,6 +23,7 @@ struct sof_ipc_dai_acp_params {
 	uint32_t reserved0;
 	uint32_t fsync_rate;
 	uint32_t tdm_slots;
+	uint32_t tdm_mode;
 } __attribute__((packed, aligned(4)));
 
 /* ACP Configuration Request - SOF_IPC_DAI_AMD_SDW_CONFIG */

src/include/ipc/dai.h

@@ -97,6 +97,7 @@ enum sof_ipc_dai_type {
 	SOF_DAI_IMX_MICFIL,		/**< i.MX MICFIL */
 	SOF_DAI_AMD_SDW,		/**< Amd SDW */
 	SOF_DAI_INTEL_UAOL,		/**< Intel UAOL */
+	SOF_DAI_AMD_TDM			/**< Amd TDM */
 };
 
 #define SOF_DAI_CONFIG_HW_SPEC_OFFSET offsetof(struct sof_ipc_dai_config, ssp)
@@ -126,7 +127,7 @@ struct sof_ipc_dai_config {
 		struct sof_ipc_dai_acp_params acpbt;
 		struct sof_ipc_dai_acp_params acpsp;
 		struct sof_ipc_dai_acpdmic_params acpdmic;
-		struct sof_ipc_dai_acp_params acphs;
+		struct sof_ipc_dai_acp_params acptdm;
 		struct sof_ipc_dai_afe_params afe;
 		struct sof_ipc_dai_micfil_params micfil;
 		struct sof_ipc_dai_acp_sdw_params acpsdw;

src/ipc/ipc3/dai.c

@@ -178,21 +178,36 @@ int ipc_dai_data_config(struct dai_data *dd, struct comp_dev *dev)
 	case SOF_DAI_IMX_ESAI:
 		dd->config.burst_elems = dai_get_fifo_depth(dd->dai, dai->direction);
 		break;
-	case SOF_DAI_AMD_BT:
-		dev->ipc_config.frame_fmt = SOF_IPC_FRAME_S16_LE;
-		break;
-	case SOF_DAI_AMD_SP:
-	case SOF_DAI_AMD_SP_VIRTUAL:
-		dev->ipc_config.frame_fmt = SOF_IPC_FRAME_S16_LE;
-		break;
 	case SOF_DAI_AMD_DMIC:
 		dev->ipc_config.frame_fmt = SOF_IPC_FRAME_S32_LE;
 		if (dd->dma_buffer)
 			audio_stream_set_frm_fmt(&dd->dma_buffer->stream,
 						 dev->ipc_config.frame_fmt);
 		break;
+	case SOF_DAI_AMD_BT:
+	case SOF_DAI_AMD_SP:
+	case SOF_DAI_AMD_SP_VIRTUAL:
 	case SOF_DAI_AMD_HS:
 	case SOF_DAI_AMD_HS_VIRTUAL:
+#if defined(CONFIG_AMD) && !defined(CONFIG_SOC_ACP_6_0)
+	{
+		struct acp_dma_dev_data *tdm_data = dd->dma->z_dev->data;
+		struct tdm_context *tdm_ctx;
+
+		/* Allocate coherent memory for TDM context shared between
+		 * IPC and DMA contexts.
+		 */
+		if (!tdm_data->dai_index_ptr) {
+			tdm_ctx = rzalloc(SOF_MEM_FLAG_USER | SOF_MEM_FLAG_COHERENT,
+					  sizeof(*tdm_ctx));
+			tdm_data->dai_index_ptr = tdm_ctx;
+		} else {
+			tdm_ctx = (struct tdm_context *)tdm_data->dai_index_ptr;
+		}
+		tdm_ctx->index = dd->dai->index;
+	}
+#endif
+		break;
 	case SOF_DAI_AMD_SDW:
 #if defined(CONFIG_AMD) && !defined(CONFIG_SOC_ACP_6_0)
 	{

src/lib/dai.c

@@ -188,6 +188,9 @@ const struct device *zephyr_dev[] = {
 #if CONFIG_DAI_AMD_SDW
 	DT_FOREACH_STATUS_OKAY(amd_acp_sdw_dai, GET_DEVICE_LIST)
 #endif
+#if CONFIG_DAI_AMD_TDM
+	DT_FOREACH_STATUS_OKAY(amd_tdm_dai, GET_DEVICE_LIST)
+#endif
 #if CONFIG_DAI_INTEL_UAOL
 	DT_FOREACH_STATUS_OKAY(intel_uaol_dai, GET_DEVICE_LIST)
 #endif
@@ -219,21 +222,20 @@ static int sof_dai_type_to_zephyr(uint32_t type)
 		return DAI_IMX_SAI;
 	case SOF_DAI_IMX_ESAI:
 		return DAI_IMX_ESAI;
-	case SOF_DAI_AMD_BT:
-		return DAI_AMD_BT;
-	case SOF_DAI_AMD_SP:
-		return DAI_AMD_SP;
 	case SOF_DAI_AMD_DMIC:
 		return DAI_AMD_DMIC;
 	case SOF_DAI_MEDIATEK_AFE:
 		return DAI_MEDIATEK_AFE;
 	case SOF_DAI_IMX_MICFIL:
 		return DAI_IMX_MICFIL;
-	case SOF_DAI_AMD_HS:
-	case SOF_DAI_AMD_SP_VIRTUAL:
-	case SOF_DAI_AMD_HS_VIRTUAL:
 	case SOF_DAI_AMD_SDW:
 		return DAI_AMD_SDW;
+	case SOF_DAI_AMD_HS:
+	case SOF_DAI_AMD_HS_VIRTUAL:
+	case SOF_DAI_AMD_SP:
+	case SOF_DAI_AMD_SP_VIRTUAL:
+	case SOF_DAI_AMD_BT:
+		return DAI_AMD_TDM;
 	default:
 		return -EINVAL;
 	}
@@ -301,6 +303,15 @@ static void dai_set_device_params(struct dai *d)
 		d->dma_dev = SOF_DMA_DEV_SW;
 		d->dma_caps = SOF_DMA_CAP_SW;
 		break;
+	/* All TDM-capable AMD DAIs share acp_tdm_dma. */
+	case SOF_DAI_AMD_HS:
+	case SOF_DAI_AMD_HS_VIRTUAL:
+	case SOF_DAI_AMD_SP:
+	case SOF_DAI_AMD_SP_VIRTUAL:
+	case SOF_DAI_AMD_BT:
+		d->dma_dev = SOF_DMA_DEV_HS | SOF_DMA_DEV_SP | SOF_DMA_DEV_BT;
+		d->dma_caps = SOF_DMA_CAP_HS | SOF_DMA_CAP_SP | SOF_DMA_CAP_BT;
+		break;
 	default:
 		break;
 	}

zephyr/lib/dma.c

@@ -238,6 +238,19 @@ SHARED_DATA struct sof_dma dma[] = {
 	},
 	.z_dev = DEVICE_DT_GET(DT_NODELABEL(acp_sdw_dma)),
 },
+{
+	.plat_data = {
+		.dir 		= SOF_DMA_DIR_MEM_TO_DEV |
+				  SOF_DMA_DIR_DEV_TO_MEM,
+		.devs 		= SOF_DMA_DEV_HS | SOF_DMA_DEV_SP | SOF_DMA_DEV_BT,
+		.caps 		= SOF_DMA_CAP_HS | SOF_DMA_CAP_SP | SOF_DMA_CAP_BT,
+		.base 		= DMA0_BASE,
+		.chan_size 	= DMA0_SIZE,
+		.channels 	= 6,
+		.period_count 	= 2,
+	},
+	.z_dev = DEVICE_DT_GET(DT_NODELABEL(acp_tdm_dma)),
+},
 #endif
 };