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diff --git a/include/sound/sof/topology.h b/include/sound/sof/topology.h
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+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) 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) 2018 Intel Corporation. All rights reserved.
+ */
+
+#ifndef __INCLUDE_SOUND_SOF_TOPOLOGY_H__
+#define __INCLUDE_SOUND_SOF_TOPOLOGY_H__
+
+#include <sound/sof/header.h>
+
+/*
+ * Component
+ */
+
+/* types of component */
+enum sof_comp_type {
+ SOF_COMP_NONE = 0,
+ SOF_COMP_HOST,
+ SOF_COMP_DAI,
+ SOF_COMP_SG_HOST, /**< scatter gather variant */
+ SOF_COMP_SG_DAI, /**< scatter gather variant */
+ SOF_COMP_VOLUME,
+ SOF_COMP_MIXER,
+ SOF_COMP_MUX,
+ SOF_COMP_SRC,
+ SOF_COMP_SPLITTER,
+ SOF_COMP_TONE,
+ SOF_COMP_SWITCH,
+ SOF_COMP_BUFFER,
+ SOF_COMP_EQ_IIR,
+ SOF_COMP_EQ_FIR,
+ SOF_COMP_KEYWORD_DETECT,
+ SOF_COMP_KPB, /* A key phrase buffer component */
+ SOF_COMP_SELECTOR, /**< channel selector component */
+ /* keep FILEREAD/FILEWRITE as the last ones */
+ SOF_COMP_FILEREAD = 10000, /**< host test based file IO */
+ SOF_COMP_FILEWRITE = 10001, /**< host test based file IO */
+};
+
+/* XRUN action for component */
+#define SOF_XRUN_STOP 1 /**< stop stream */
+#define SOF_XRUN_UNDER_ZERO 2 /**< send 0s to sink */
+#define SOF_XRUN_OVER_NULL 4 /**< send data to NULL */
+
+/* create new generic component - SOF_IPC_TPLG_COMP_NEW */
+struct sof_ipc_comp {
+ struct sof_ipc_cmd_hdr hdr;
+ uint32_t id;
+ enum sof_comp_type type;
+ uint32_t pipeline_id;
+
+ /* reserved for future use */
+ uint32_t reserved[2];
+} __packed;
+
+/*
+ * Component Buffers
+ */
+
+/*
+ * SOF memory capabilities, add new ones at the end
+ */
+#define SOF_MEM_CAPS_RAM (1 << 0)
+#define SOF_MEM_CAPS_ROM (1 << 1)
+#define SOF_MEM_CAPS_EXT (1 << 2) /**< external */
+#define SOF_MEM_CAPS_LP (1 << 3) /**< low power */
+#define SOF_MEM_CAPS_HP (1 << 4) /**< high performance */
+#define SOF_MEM_CAPS_DMA (1 << 5) /**< DMA'able */
+#define SOF_MEM_CAPS_CACHE (1 << 6) /**< cacheable */
+#define SOF_MEM_CAPS_EXEC (1 << 7) /**< executable */
+
+/* create new component buffer - SOF_IPC_TPLG_BUFFER_NEW */
+struct sof_ipc_buffer {
+ struct sof_ipc_comp comp;
+ uint32_t size; /**< buffer size in bytes */
+ uint32_t caps; /**< SOF_MEM_CAPS_ */
+} __packed;
+
+/* generic component config data - must always be after struct sof_ipc_comp */
+struct sof_ipc_comp_config {
+ struct sof_ipc_cmd_hdr hdr;
+ uint32_t periods_sink; /**< 0 means variable */
+ uint32_t periods_source; /**< 0 means variable */
+ uint32_t reserved1; /**< reserved */
+ uint32_t frame_fmt; /**< SOF_IPC_FRAME_ */
+ uint32_t xrun_action;
+
+ /* reserved for future use */
+ uint32_t reserved[2];
+} __packed;
+
+/* generic host component */
+struct sof_ipc_comp_host {
+ struct sof_ipc_comp comp;
+ struct sof_ipc_comp_config config;
+ uint32_t direction; /**< SOF_IPC_STREAM_ */
+ uint32_t no_irq; /**< don't send periodic IRQ to host/DSP */
+ uint32_t dmac_config; /**< DMA engine specific */
+} __packed;
+
+/* generic DAI component */
+struct sof_ipc_comp_dai {
+ struct sof_ipc_comp comp;
+ struct sof_ipc_comp_config config;
+ uint32_t direction; /**< SOF_IPC_STREAM_ */
+ uint32_t dai_index; /**< index of this type dai */
+ uint32_t type; /**< DAI type - SOF_DAI_ */
+ uint32_t reserved; /**< reserved */
+} __packed;
+
+/* generic mixer component */
+struct sof_ipc_comp_mixer {
+ struct sof_ipc_comp comp;
+ struct sof_ipc_comp_config config;
+} __packed;
+
+/* volume ramping types */
+enum sof_volume_ramp {
+ SOF_VOLUME_LINEAR = 0,
+ SOF_VOLUME_LOG,
+ SOF_VOLUME_LINEAR_ZC,
+ SOF_VOLUME_LOG_ZC,
+};
+
+/* generic volume component */
+struct sof_ipc_comp_volume {
+ struct sof_ipc_comp comp;
+ struct sof_ipc_comp_config config;
+ uint32_t channels;
+ uint32_t min_value;
+ uint32_t max_value;
+ uint32_t ramp; /**< SOF_VOLUME_ */
+ uint32_t initial_ramp; /**< ramp space in ms */
+} __packed;
+
+/* generic SRC component */
+struct sof_ipc_comp_src {
+ struct sof_ipc_comp comp;
+ struct sof_ipc_comp_config config;
+ /* either source or sink rate must be non zero */
+ uint32_t source_rate; /**< source rate or 0 for variable */
+ uint32_t sink_rate; /**< sink rate or 0 for variable */
+ uint32_t rate_mask; /**< SOF_RATE_ supported rates */
+} __packed;
+
+/* generic MUX component */
+struct sof_ipc_comp_mux {
+ struct sof_ipc_comp comp;
+ struct sof_ipc_comp_config config;
+} __packed;
+
+/* generic tone generator component */
+struct sof_ipc_comp_tone {
+ struct sof_ipc_comp comp;
+ struct sof_ipc_comp_config config;
+ int32_t sample_rate;
+ int32_t frequency;
+ int32_t amplitude;
+ int32_t freq_mult;
+ int32_t ampl_mult;
+ int32_t length;
+ int32_t period;
+ int32_t repeats;
+ int32_t ramp_step;
+} __packed;
+
+/** \brief Types of processing components */
+enum sof_ipc_process_type {
+ SOF_PROCESS_NONE = 0, /**< None */
+ SOF_PROCESS_EQFIR, /**< Intel FIR */
+ SOF_PROCESS_EQIIR, /**< Intel IIR */
+ SOF_PROCESS_KEYWORD_DETECT, /**< Keyword Detection */
+ SOF_PROCESS_KPB, /**< KeyPhrase Buffer Manager */
+ SOF_PROCESS_CHAN_SELECTOR, /**< Channel Selector */
+};
+
+/* generic "effect", "codec" or proprietary processing component */
+struct sof_ipc_comp_process {
+ struct sof_ipc_comp comp;
+ struct sof_ipc_comp_config config;
+ uint32_t size; /**< size of bespoke data section in bytes */
+ uint32_t type; /**< sof_ipc_process_type */
+
+ /* reserved for future use */
+ uint32_t reserved[7];
+
+ unsigned char data[0];
+} __packed;
+
+/* frees components, buffers and pipelines
+ * SOF_IPC_TPLG_COMP_FREE, SOF_IPC_TPLG_PIPE_FREE, SOF_IPC_TPLG_BUFFER_FREE
+ */
+struct sof_ipc_free {
+ struct sof_ipc_cmd_hdr hdr;
+ uint32_t id;
+} __packed;
+
+struct sof_ipc_comp_reply {
+ struct sof_ipc_reply rhdr;
+ uint32_t id;
+ uint32_t offset;
+} __packed;
+
+/*
+ * Pipeline
+ */
+
+/** \brief Types of pipeline scheduling time domains */
+enum sof_ipc_pipe_sched_time_domain {
+ SOF_TIME_DOMAIN_DMA = 0, /**< DMA interrupt */
+ SOF_TIME_DOMAIN_TIMER, /**< Timer interrupt */
+};
+
+/* new pipeline - SOF_IPC_TPLG_PIPE_NEW */
+struct sof_ipc_pipe_new {
+ struct sof_ipc_cmd_hdr hdr;
+ uint32_t comp_id; /**< component id for pipeline */
+ uint32_t pipeline_id; /**< pipeline id */
+ uint32_t sched_id; /**< Scheduling component id */
+ uint32_t core; /**< core we run on */
+ uint32_t period; /**< execution period in us*/
+ uint32_t priority; /**< priority level 0 (low) to 10 (max) */
+ uint32_t period_mips; /**< worst case instruction count per period */
+ uint32_t frames_per_sched;/**< output frames of pipeline, 0 is variable */
+ uint32_t xrun_limit_usecs; /**< report xruns greater than limit */
+ uint32_t time_domain; /**< scheduling time domain */
+} __packed;
+
+/* pipeline construction complete - SOF_IPC_TPLG_PIPE_COMPLETE */
+struct sof_ipc_pipe_ready {
+ struct sof_ipc_cmd_hdr hdr;
+ uint32_t comp_id;
+} __packed;
+
+struct sof_ipc_pipe_free {
+ struct sof_ipc_cmd_hdr hdr;
+ uint32_t comp_id;
+} __packed;
+
+/* connect two components in pipeline - SOF_IPC_TPLG_COMP_CONNECT */
+struct sof_ipc_pipe_comp_connect {
+ struct sof_ipc_cmd_hdr hdr;
+ uint32_t source_id;
+ uint32_t sink_id;
+} __packed;
+
+/* external events */
+enum sof_event_types {
+ SOF_EVENT_NONE = 0,
+ SOF_KEYWORD_DETECT_DAPM_EVENT,
+};
+
+#endif