ASoC: SOF: topology: Add support for AMD ACP DAIs

Add new sof dais and config to pass topology file configuration
to SOF firmware running on ACP's DSP core. ACP firmware support
I2S_BT, I2S_SP and DMIC controller hence add three new dais to
the list of supported sof_dais

Signed-off-by: Ajit Kumar Pandey <[e-mail]>
Reviewed-by: Bard Liao <[e-mail]>
Reviewed-by: Kai Vehmanen <[e-mail]>
Signed-off-by: Daniel Baluta <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

include/sound/sof/dai-amd.h

···
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
+/*
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * Copyright(c) 2021 Advanced Micro Devices, Inc.. All rights reserved.
+ */
+
+#ifndef __INCLUDE_SOUND_SOF_DAI_AMD_H__
+#define __INCLUDE_SOUND_SOF_DAI_AMD_H__
+
+#include <sound/sof/header.h>
+
+/* ACP Configuration Request - SOF_IPC_DAI_AMD_CONFIG */
+struct sof_ipc_dai_acp_params {
+	struct sof_ipc_hdr hdr;
+
+	uint32_t fsync_rate;    /* FSYNC frequency in Hz */
+	uint32_t tdm_slots;
+} __packed;
+#endif

include/sound/sof/dai.h

···
 #include <sound/sof/header.h>
 #include <sound/sof/dai-intel.h>
 #include <sound/sof/dai-imx.h>
+#include <sound/sof/dai-amd.h>
 
 /*
  * DAI Configuration.
···
 	SOF_DAI_INTEL_ALH,		/**< Intel ALH  */
 	SOF_DAI_IMX_SAI,		/**< i.MX SAI */
 	SOF_DAI_IMX_ESAI,		/**< i.MX ESAI */
+	SOF_DAI_AMD_BT,			/**< AMD ACP BT*/
+	SOF_DAI_AMD_SP,			/**< AMD ACP SP */
+	SOF_DAI_AMD_DMIC,		/**< AMD ACP DMIC */
 };
 
 /* general purpose DAI configuration */
···
 		struct sof_ipc_dai_alh_params alh;
 		struct sof_ipc_dai_esai_params esai;
 		struct sof_ipc_dai_sai_params sai;
+		struct sof_ipc_dai_acp_params acpbt;
+		struct sof_ipc_dai_acp_params acpsp;
+		struct sof_ipc_dai_acp_params acpdmic;
 	};
 } __packed;
 

sound/soc/sof/pcm.c

···
 			"channels_min: %d channels_max: %d\n",
 			channels->min, channels->max);
 		break;
+	case SOF_DAI_AMD_BT:
+		rate->min = dai->dai_config->acpbt.fsync_rate;
+		rate->max = dai->dai_config->acpbt.fsync_rate;
+		channels->min = dai->dai_config->acpbt.tdm_slots;
+		channels->max = dai->dai_config->acpbt.tdm_slots;
+
+		dev_dbg(component->dev,
+			"AMD_BT rate_min: %d rate_max: %d\n", rate->min, rate->max);
+		dev_dbg(component->dev,
+			"AMD_BT channels_min: %d channels_max: %d\n",
+			channels->min, channels->max);
+		break;
+	case SOF_DAI_AMD_SP:
+		rate->min = dai->dai_config->acpsp.fsync_rate;
+		rate->max = dai->dai_config->acpsp.fsync_rate;
+		channels->min = dai->dai_config->acpsp.tdm_slots;
+		channels->max = dai->dai_config->acpsp.tdm_slots;
+
+		dev_dbg(component->dev,
+			"AMD_SP rate_min: %d rate_max: %d\n", rate->min, rate->max);
+		dev_dbg(component->dev,
+			"AMD_SP channels_min: %d channels_max: %d\n",
+			channels->min, channels->max);
+		break;
+	case SOF_DAI_AMD_DMIC:
+		rate->min = dai->dai_config->acpdmic.fsync_rate;
+		rate->max = dai->dai_config->acpdmic.fsync_rate;
+		channels->min = dai->dai_config->acpdmic.tdm_slots;
+		channels->max = dai->dai_config->acpdmic.tdm_slots;
+
+		dev_dbg(component->dev,
+			"AMD_DMIC rate_min: %d rate_max: %d\n", rate->min, rate->max);
+		dev_dbg(component->dev,
+			"AMD_DMIC channels_min: %d channels_max: %d\n",
+			channels->min, channels->max);
+		break;
 	default:
 		dev_err(component->dev, "error: invalid DAI type %d\n",
 			dai->dai_config->type);

sound/soc/sof/topology.c

···
 	{"ALH", SOF_DAI_INTEL_ALH},
 	{"SAI", SOF_DAI_IMX_SAI},
 	{"ESAI", SOF_DAI_IMX_ESAI},
+	{"ACP", SOF_DAI_AMD_BT},
+	{"ACPSP", SOF_DAI_AMD_SP},
+	{"ACPDMIC", SOF_DAI_AMD_DMIC},
 };
 
 static enum sof_ipc_dai_type find_dai(const char *name)
···
 	return ret;
 }
 
+static int sof_link_acp_dmic_load(struct snd_soc_component *scomp, int index,
+				  struct snd_soc_dai_link *link,
+				  struct snd_soc_tplg_link_config *cfg,
+				  struct snd_soc_tplg_hw_config *hw_config,
+				  struct sof_ipc_dai_config *config)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	u32 size = sizeof(*config);
+	int ret;
+
+       /* handle master/slave and inverted clocks */
+	sof_dai_set_format(hw_config, config);
+
+	/* init IPC */
+	memset(&config->acpdmic, 0, sizeof(struct sof_ipc_dai_acp_params));
+	config->hdr.size = size;
+
+	config->acpdmic.fsync_rate = le32_to_cpu(hw_config->fsync_rate);
+	config->acpdmic.tdm_slots = le32_to_cpu(hw_config->tdm_slots);
+
+	dev_info(scomp->dev, "ACP_DMIC config ACP%d channel %d rate %d\n",
+		 config->dai_index, config->acpdmic.tdm_slots,
+		 config->acpdmic.fsync_rate);
+
+	/* set config for all DAI's with name matching the link name */
+	ret = sof_set_dai_config(sdev, size, link, config);
+	if (ret < 0)
+		dev_err(scomp->dev, "ACP_DMIC failed to save DAI config for ACP%d\n",
+			config->dai_index);
+	return ret;
+}
+
+static int sof_link_acp_bt_load(struct snd_soc_component *scomp, int index,
+				struct snd_soc_dai_link *link,
+				struct snd_soc_tplg_link_config *cfg,
+				struct snd_soc_tplg_hw_config *hw_config,
+				struct sof_ipc_dai_config *config)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	u32 size = sizeof(*config);
+	int ret;
+
+	/* handle master/slave and inverted clocks */
+	sof_dai_set_format(hw_config, config);
+
+	/* init IPC */
+	memset(&config->acpbt, 0, sizeof(struct sof_ipc_dai_acp_params));
+	config->hdr.size = size;
+
+	config->acpbt.fsync_rate = le32_to_cpu(hw_config->fsync_rate);
+	config->acpbt.tdm_slots = le32_to_cpu(hw_config->tdm_slots);
+
+	dev_info(scomp->dev, "ACP_BT config ACP%d channel %d rate %d\n",
+		 config->dai_index, config->acpbt.tdm_slots,
+		 config->acpbt.fsync_rate);
+
+	/* set config for all DAI's with name matching the link name */
+	ret = sof_set_dai_config(sdev, size, link, config);
+	if (ret < 0)
+		dev_err(scomp->dev, "ACP_BT failed to save DAI config for ACP%d\n",
+			config->dai_index);
+	return ret;
+}
+
+static int sof_link_acp_sp_load(struct snd_soc_component *scomp, int index,
+				struct snd_soc_dai_link *link,
+				struct snd_soc_tplg_link_config *cfg,
+				struct snd_soc_tplg_hw_config *hw_config,
+				struct sof_ipc_dai_config *config)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(scomp);
+	u32 size = sizeof(*config);
+	int ret;
+
+	/* handle master/slave and inverted clocks */
+	sof_dai_set_format(hw_config, config);
+
+	/* init IPC */
+	memset(&config->acpsp, 0, sizeof(struct sof_ipc_dai_acp_params));
+	config->hdr.size = size;
+
+	config->acpsp.fsync_rate = le32_to_cpu(hw_config->fsync_rate);
+	config->acpsp.tdm_slots = le32_to_cpu(hw_config->tdm_slots);
+
+	dev_info(scomp->dev, "ACP_SP config ACP%d channel %d rate %d\n",
+		 config->dai_index, config->acpsp.tdm_slots,
+		 config->acpsp.fsync_rate);
+
+	/* set config for all DAI's with name matching the link name */
+	ret = sof_set_dai_config(sdev, size, link, config);
+	if (ret < 0)
+		dev_err(scomp->dev, "ACP_SP failed to save DAI config for ACP%d\n",
+			config->dai_index);
+	return ret;
+}
+
 static int sof_link_dmic_load(struct snd_soc_component *scomp, int index,
 			      struct snd_soc_dai_link *link,
 			      struct snd_soc_tplg_link_config *cfg,
···
 		break;
 	case SOF_DAI_IMX_ESAI:
 		ret = sof_link_esai_load(scomp, index, link, cfg, hw_config + curr_conf, config);
+		break;
+	case SOF_DAI_AMD_BT:
+		ret = sof_link_acp_bt_load(scomp, index, link, cfg, hw_config + curr_conf, config);
+		break;
+	case SOF_DAI_AMD_SP:
+		ret = sof_link_acp_sp_load(scomp, index, link, cfg, hw_config + curr_conf, config);
+		break;
+	case SOF_DAI_AMD_DMIC:
+		ret = sof_link_acp_dmic_load(scomp, index, link, cfg, hw_config + curr_conf,
+					     config);
 		break;
 	default:
 		dev_err(scomp->dev, "error: invalid DAI type %d\n", common_config.type);