uAPI

SOF uAPI specification More...

Data Structures
struct	sof_ipc_hdr
	Structure Header - Header for all IPC structures except command structs. More...
struct	sof_ipc_cmd_hdr
	Command Header - Header for all IPC commands. More...
struct	sof_ipc_reply
	Generic reply message. More...
struct	sof_ipc_compound_hdr
	Compound commands - SOF_IPC_GLB_COMPOUND. More...
struct	sof_ipc_dsp_oops_arch_hdr
	OOPS header architecture specific data. More...
struct	sof_ipc_dsp_oops_plat_hdr
	OOPS header platform specific data. More...

Global Message - Generic
#define	SOF_GLB_TYPE_SHIFT   28
	Shift-left bits to extract the global cmd type.
#define	SOF_GLB_TYPE_MASK   (0xfUL << SOF_GLB_TYPE_SHIFT)
#define	SOF_GLB_TYPE(x)

Command Message - Generic
#define	SOF_CMD_TYPE_SHIFT   16
	Shift-left bits to extract the command type.
#define	SOF_CMD_TYPE_MASK   (0xfffL << SOF_CMD_TYPE_SHIFT)
#define	SOF_CMD_TYPE(x)

Global Message Types
#define	SOF_IPC_GLB_REPLY   SOF_GLB_TYPE(0x1U)
#define	SOF_IPC_GLB_COMPOUND   SOF_GLB_TYPE(0x2U)
#define	SOF_IPC_GLB_TPLG_MSG   SOF_GLB_TYPE(0x3U)
#define	SOF_IPC_GLB_PM_MSG   SOF_GLB_TYPE(0x4U)
#define	SOF_IPC_GLB_COMP_MSG   SOF_GLB_TYPE(0x5U)
#define	SOF_IPC_GLB_STREAM_MSG   SOF_GLB_TYPE(0x6U)
#define	SOF_IPC_FW_READY   SOF_GLB_TYPE(0x7U)
#define	SOF_IPC_GLB_DAI_MSG   SOF_GLB_TYPE(0x8U)
#define	SOF_IPC_GLB_TRACE_MSG   SOF_GLB_TYPE(0x9U)
#define	SOF_IPC_GLB_GDB_DEBUG   SOF_GLB_TYPE(0xAU)
#define	SOF_IPC_GLB_TEST   SOF_GLB_TYPE(0xBU)
#define	SOF_IPC_GLB_PROBE   SOF_GLB_TYPE(0xCU)
#define	SOF_IPC_GLB_DEBUG   SOF_GLB_TYPE(0xDU)

DSP Command: Topology
#define	SOF_IPC_TPLG_COMP_NEW   SOF_CMD_TYPE(0x001)
#define	SOF_IPC_TPLG_COMP_FREE   SOF_CMD_TYPE(0x002)
#define	SOF_IPC_TPLG_COMP_CONNECT   SOF_CMD_TYPE(0x003)
#define	SOF_IPC_TPLG_PIPE_NEW   SOF_CMD_TYPE(0x010)
#define	SOF_IPC_TPLG_PIPE_FREE   SOF_CMD_TYPE(0x011)
#define	SOF_IPC_TPLG_PIPE_CONNECT   SOF_CMD_TYPE(0x012)
#define	SOF_IPC_TPLG_PIPE_COMPLETE   SOF_CMD_TYPE(0x013)
#define	SOF_IPC_TPLG_BUFFER_NEW   SOF_CMD_TYPE(0x020)
#define	SOF_IPC_TPLG_BUFFER_FREE   SOF_CMD_TYPE(0x021)

DSP Command: PM
#define	SOF_IPC_PM_CTX_SAVE   SOF_CMD_TYPE(0x001)
#define	SOF_IPC_PM_CTX_RESTORE   SOF_CMD_TYPE(0x002)
#define	SOF_IPC_PM_CTX_SIZE   SOF_CMD_TYPE(0x003)
#define	SOF_IPC_PM_CLK_SET   SOF_CMD_TYPE(0x004)
#define	SOF_IPC_PM_CLK_GET   SOF_CMD_TYPE(0x005)
#define	SOF_IPC_PM_CLK_REQ   SOF_CMD_TYPE(0x006)
#define	SOF_IPC_PM_CORE_ENABLE   SOF_CMD_TYPE(0x007)
#define	SOF_IPC_PM_GATE   SOF_CMD_TYPE(0x008)

DSP Command: Component runtime config - multiple different types
#define	SOF_IPC_COMP_SET_VALUE   SOF_CMD_TYPE(0x001)
#define	SOF_IPC_COMP_GET_VALUE   SOF_CMD_TYPE(0x002)
#define	SOF_IPC_COMP_SET_DATA   SOF_CMD_TYPE(0x003)
#define	SOF_IPC_COMP_GET_DATA   SOF_CMD_TYPE(0x004)
#define	SOF_IPC_COMP_NOTIFICATION   SOF_CMD_TYPE(0x005)

DSP Command: DAI messages
#define	SOF_IPC_DAI_CONFIG   SOF_CMD_TYPE(0x001)
#define	SOF_IPC_DAI_LOOPBACK   SOF_CMD_TYPE(0x002)

DSP Command: Stream
#define	SOF_IPC_STREAM_PCM_PARAMS   SOF_CMD_TYPE(0x001)
#define	SOF_IPC_STREAM_PCM_PARAMS_REPLY   SOF_CMD_TYPE(0x002)
#define	SOF_IPC_STREAM_PCM_FREE   SOF_CMD_TYPE(0x003)
#define	SOF_IPC_STREAM_TRIG_START   SOF_CMD_TYPE(0x004)
#define	SOF_IPC_STREAM_TRIG_STOP   SOF_CMD_TYPE(0x005)
#define	SOF_IPC_STREAM_TRIG_PAUSE   SOF_CMD_TYPE(0x006)
#define	SOF_IPC_STREAM_TRIG_RELEASE   SOF_CMD_TYPE(0x007)
#define	SOF_IPC_STREAM_TRIG_DRAIN   SOF_CMD_TYPE(0x008)
#define	SOF_IPC_STREAM_TRIG_XRUN   SOF_CMD_TYPE(0x009)
#define	SOF_IPC_STREAM_POSITION   SOF_CMD_TYPE(0x00a)
#define	SOF_IPC_STREAM_VORBIS_PARAMS   SOF_CMD_TYPE(0x010)
#define	SOF_IPC_STREAM_VORBIS_FREE   SOF_CMD_TYPE(0x011)

DSP Command: Trace and debug
#define	SOF_IPC_TRACE_DMA_PARAMS   SOF_CMD_TYPE(0x001)
#define	SOF_IPC_TRACE_DMA_POSITION   SOF_CMD_TYPE(0x002)
#define	SOF_IPC_TRACE_DMA_PARAMS_EXT   SOF_CMD_TYPE(0x003)
#define	SOF_IPC_TRACE_FILTER_UPDATE   SOF_CMD_TYPE(0x004)
	ABI3.17.
#define	SOF_IPC_TRACE_DMA_FREE   SOF_CMD_TYPE(0x005)
	ABI3.20.

DSP Command: Probes
#define	SOF_IPC_PROBE_INIT   SOF_CMD_TYPE(0x001)
#define	SOF_IPC_PROBE_DEINIT   SOF_CMD_TYPE(0x002)
#define	SOF_IPC_PROBE_DMA_ADD   SOF_CMD_TYPE(0x003)
#define	SOF_IPC_PROBE_DMA_INFO   SOF_CMD_TYPE(0x004)
#define	SOF_IPC_PROBE_DMA_REMOVE   SOF_CMD_TYPE(0x005)
#define	SOF_IPC_PROBE_POINT_ADD   SOF_CMD_TYPE(0x006)
#define	SOF_IPC_PROBE_POINT_INFO   SOF_CMD_TYPE(0x007)
#define	SOF_IPC_PROBE_POINT_REMOVE   SOF_CMD_TYPE(0x008)

DSP Command: Debug - additional services
#define	SOF_IPC_DEBUG_MEM_USAGE   SOF_CMD_TYPE(0x001)

DSP Command: Test - Debug build only
#define	SOF_IPC_TEST_IPC_FLOOD   SOF_CMD_TYPE(0x001)

IPC Message Definitions
#define	SOF_IPC_MESSAGE_ID(x)
	Get message component id.
#define	SOF_IPC_MSG_MAX_SIZE   384
	Maximum message size for mailbox Tx/Rx.

Detailed Description

SOF uAPI specification

Overview

The SOF Audio DSP firmware defines an Inter-Process Communication (IPC) interface to facilitate communication with the host.

The SOF IPC is bi-directional. Messages can be initiated by the host and acknowledged by the DSP. Similarly, they can be initiated by the DSP and acknowledged by the host.

IPC messages are divided into several groups: global, topology, power management, component, stream, DAI, trace, and a separate "firmware ready" message. Multiple messages can also be grouped into a message that belong to a compound group. Most messages are sent by the host to the DSP; only the following messages are sent by the DSP to the host:

• firmware ready: sent only once during initialization
• trace: optional, contains firmware trace data
• position update: only used if position data cannot be transferred in a memory window or if forced by the kernel configuration

Message encoding

All multi-byte protocol fields are encoded with little-endian byte-order.

Message structure

IPC messages have a fixed header and variable length payload.

 0                   1                   2                   3
 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Size                                                          |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Command                                                       |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

The header contains size of the IPC message and a 32bit Command identifier with following structure:

0xGCCCNNNN is little-endian value where

• G is the Global Type (4 bits)
• C is the Command Type (12 bits)
• N is the ID Number (16 bits) - monotonic and overflows

The Global and Command Types together define the structure of the payload. E.g. for topology IPC message COMP_NEW structure is (ABI 3.17.0 example):

 0                   1                   2                   3
 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Size (Total size including Extended Data)                     |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Command (G=TPLG_MSG, C=COMP_NEW)                              |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Component ID                                                  |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type                                                          |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Pipeline ID                                                   |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Core                                                          |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Extended Data size                                            |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type specific payload, size varies based on Component ID.     |
| Ends at: Total size - Extended Data size                      |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| extended data, including e.g. UUID                            |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

See also

sof_ipc_comp

Reply Messages

Reply messages are defined per Command. The response IPC messages have a common layout, but some Commands have extended fields defined. The common format is:

 0                   1                   2                   3
 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Size                                                          |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Command (G=REPLY, C=0)                                        |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Error                                                         |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

See also

sof_ipc_reply

IPC ABI version compatibility rules

1. FW binaries will only support one MAJOR ABI version which is advertised to host at FW boot.
2. Host drivers will support the current and older MAJOR ABI versions of the IPC ABI (up to a certain age to be determined by market information).

3. MINOR and PATCH ABI versions can differ between host and FW but must be backwards compatible on both host and FW.

   IPC messages sizes can be different for sender and receiver if MINOR or PATCH ABI versions differ as new fields can be added to the end of messages.

   i) SenderVersion > ReceiverVersion: Receiver only copies its own ABI structure size.

   ii) ReceiverVersion > SenderVersion: Receiver copies its own ABI size and zero pads new fields. i.e. new structure fields must be non zero to be activated.

Guidelines for extending ABI compatible messages :-

• i) Use reserved fields.
• ii) Grow structure at the end.
• iii) Iff (i) and (ii) are not possible then MAJOR ABI is bumped.

Macro Definition Documentation

SOF_CMD_TYPE

#define SOF_CMD_TYPE

(

x

)

Value:

((x) << SOF_CMD_TYPE_SHIFT)

SOF_CMD_TYPE_MASK

#define SOF_CMD_TYPE_MASK   (0xfffL << SOF_CMD_TYPE_SHIFT)

SOF_CMD_TYPE_SHIFT

#define SOF_CMD_TYPE_SHIFT   16

Shift-left bits to extract the command type.

SOF_GLB_TYPE

#define SOF_GLB_TYPE

(

x

)

Value:

((x) << SOF_GLB_TYPE_SHIFT)

SOF_GLB_TYPE_MASK

#define SOF_GLB_TYPE_MASK   (0xfUL << SOF_GLB_TYPE_SHIFT)

SOF_GLB_TYPE_SHIFT

#define SOF_GLB_TYPE_SHIFT   28

Shift-left bits to extract the global cmd type.

SOF_IPC_COMP_GET_DATA

#define SOF_IPC_COMP_GET_DATA   SOF_CMD_TYPE(0x004)

SOF_IPC_COMP_GET_VALUE

#define SOF_IPC_COMP_GET_VALUE   SOF_CMD_TYPE(0x002)

SOF_IPC_COMP_NOTIFICATION

#define SOF_IPC_COMP_NOTIFICATION   SOF_CMD_TYPE(0x005)

SOF_IPC_COMP_SET_DATA

#define SOF_IPC_COMP_SET_DATA   SOF_CMD_TYPE(0x003)

SOF_IPC_COMP_SET_VALUE

#define SOF_IPC_COMP_SET_VALUE   SOF_CMD_TYPE(0x001)

SOF_IPC_DAI_CONFIG

#define SOF_IPC_DAI_CONFIG   SOF_CMD_TYPE(0x001)

SOF_IPC_DAI_LOOPBACK

#define SOF_IPC_DAI_LOOPBACK   SOF_CMD_TYPE(0x002)

SOF_IPC_DEBUG_MEM_USAGE

#define SOF_IPC_DEBUG_MEM_USAGE   SOF_CMD_TYPE(0x001)

SOF_IPC_FW_READY

#define SOF_IPC_FW_READY   SOF_GLB_TYPE(0x7U)

SOF_IPC_GLB_COMP_MSG

#define SOF_IPC_GLB_COMP_MSG   SOF_GLB_TYPE(0x5U)

SOF_IPC_GLB_COMPOUND

#define SOF_IPC_GLB_COMPOUND   SOF_GLB_TYPE(0x2U)

SOF_IPC_GLB_DAI_MSG

#define SOF_IPC_GLB_DAI_MSG   SOF_GLB_TYPE(0x8U)

SOF_IPC_GLB_DEBUG

#define SOF_IPC_GLB_DEBUG   SOF_GLB_TYPE(0xDU)

SOF_IPC_GLB_GDB_DEBUG

#define SOF_IPC_GLB_GDB_DEBUG   SOF_GLB_TYPE(0xAU)

SOF_IPC_GLB_PM_MSG

#define SOF_IPC_GLB_PM_MSG   SOF_GLB_TYPE(0x4U)

SOF_IPC_GLB_PROBE

#define SOF_IPC_GLB_PROBE   SOF_GLB_TYPE(0xCU)

SOF_IPC_GLB_REPLY

#define SOF_IPC_GLB_REPLY   SOF_GLB_TYPE(0x1U)

SOF_IPC_GLB_STREAM_MSG

#define SOF_IPC_GLB_STREAM_MSG   SOF_GLB_TYPE(0x6U)

SOF_IPC_GLB_TEST

#define SOF_IPC_GLB_TEST   SOF_GLB_TYPE(0xBU)

SOF_IPC_GLB_TPLG_MSG

#define SOF_IPC_GLB_TPLG_MSG   SOF_GLB_TYPE(0x3U)

SOF_IPC_GLB_TRACE_MSG

#define SOF_IPC_GLB_TRACE_MSG   SOF_GLB_TYPE(0x9U)

SOF_IPC_MESSAGE_ID

#define SOF_IPC_MESSAGE_ID

(

x

)

Value:

((x) & 0xffff)

Get message component id.

SOF_IPC_MSG_MAX_SIZE

#define SOF_IPC_MSG_MAX_SIZE   384

Maximum message size for mailbox Tx/Rx.

SOF_IPC_PM_CLK_GET

#define SOF_IPC_PM_CLK_GET   SOF_CMD_TYPE(0x005)

SOF_IPC_PM_CLK_REQ

#define SOF_IPC_PM_CLK_REQ   SOF_CMD_TYPE(0x006)

SOF_IPC_PM_CLK_SET

#define SOF_IPC_PM_CLK_SET   SOF_CMD_TYPE(0x004)

SOF_IPC_PM_CORE_ENABLE

#define SOF_IPC_PM_CORE_ENABLE   SOF_CMD_TYPE(0x007)

SOF_IPC_PM_CTX_RESTORE

#define SOF_IPC_PM_CTX_RESTORE   SOF_CMD_TYPE(0x002)

SOF_IPC_PM_CTX_SAVE

#define SOF_IPC_PM_CTX_SAVE   SOF_CMD_TYPE(0x001)

SOF_IPC_PM_CTX_SIZE

#define SOF_IPC_PM_CTX_SIZE   SOF_CMD_TYPE(0x003)

SOF_IPC_PM_GATE

#define SOF_IPC_PM_GATE   SOF_CMD_TYPE(0x008)

SOF_IPC_PROBE_DEINIT

#define SOF_IPC_PROBE_DEINIT   SOF_CMD_TYPE(0x002)

SOF_IPC_PROBE_DMA_ADD

#define SOF_IPC_PROBE_DMA_ADD   SOF_CMD_TYPE(0x003)

SOF_IPC_PROBE_DMA_INFO

#define SOF_IPC_PROBE_DMA_INFO   SOF_CMD_TYPE(0x004)

SOF_IPC_PROBE_DMA_REMOVE

#define SOF_IPC_PROBE_DMA_REMOVE   SOF_CMD_TYPE(0x005)

SOF_IPC_PROBE_INIT

#define SOF_IPC_PROBE_INIT   SOF_CMD_TYPE(0x001)

SOF_IPC_PROBE_POINT_ADD

#define SOF_IPC_PROBE_POINT_ADD   SOF_CMD_TYPE(0x006)

SOF_IPC_PROBE_POINT_INFO

#define SOF_IPC_PROBE_POINT_INFO   SOF_CMD_TYPE(0x007)

SOF_IPC_PROBE_POINT_REMOVE

#define SOF_IPC_PROBE_POINT_REMOVE   SOF_CMD_TYPE(0x008)

SOF_IPC_STREAM_PCM_FREE

#define SOF_IPC_STREAM_PCM_FREE   SOF_CMD_TYPE(0x003)

SOF_IPC_STREAM_PCM_PARAMS

#define SOF_IPC_STREAM_PCM_PARAMS   SOF_CMD_TYPE(0x001)

SOF_IPC_STREAM_PCM_PARAMS_REPLY

#define SOF_IPC_STREAM_PCM_PARAMS_REPLY   SOF_CMD_TYPE(0x002)

SOF_IPC_STREAM_POSITION

#define SOF_IPC_STREAM_POSITION   SOF_CMD_TYPE(0x00a)

SOF_IPC_STREAM_TRIG_DRAIN

#define SOF_IPC_STREAM_TRIG_DRAIN   SOF_CMD_TYPE(0x008)

SOF_IPC_STREAM_TRIG_PAUSE

#define SOF_IPC_STREAM_TRIG_PAUSE   SOF_CMD_TYPE(0x006)

SOF_IPC_STREAM_TRIG_RELEASE

#define SOF_IPC_STREAM_TRIG_RELEASE   SOF_CMD_TYPE(0x007)

SOF_IPC_STREAM_TRIG_START

#define SOF_IPC_STREAM_TRIG_START   SOF_CMD_TYPE(0x004)

SOF_IPC_STREAM_TRIG_STOP

#define SOF_IPC_STREAM_TRIG_STOP   SOF_CMD_TYPE(0x005)

SOF_IPC_STREAM_TRIG_XRUN

#define SOF_IPC_STREAM_TRIG_XRUN   SOF_CMD_TYPE(0x009)

SOF_IPC_STREAM_VORBIS_FREE

#define SOF_IPC_STREAM_VORBIS_FREE   SOF_CMD_TYPE(0x011)

SOF_IPC_STREAM_VORBIS_PARAMS

#define SOF_IPC_STREAM_VORBIS_PARAMS   SOF_CMD_TYPE(0x010)

SOF_IPC_TEST_IPC_FLOOD

#define SOF_IPC_TEST_IPC_FLOOD   SOF_CMD_TYPE(0x001)

SOF_IPC_TPLG_BUFFER_FREE

#define SOF_IPC_TPLG_BUFFER_FREE   SOF_CMD_TYPE(0x021)

SOF_IPC_TPLG_BUFFER_NEW

#define SOF_IPC_TPLG_BUFFER_NEW   SOF_CMD_TYPE(0x020)

SOF_IPC_TPLG_COMP_CONNECT

#define SOF_IPC_TPLG_COMP_CONNECT   SOF_CMD_TYPE(0x003)

SOF_IPC_TPLG_COMP_FREE

#define SOF_IPC_TPLG_COMP_FREE   SOF_CMD_TYPE(0x002)

SOF_IPC_TPLG_COMP_NEW

#define SOF_IPC_TPLG_COMP_NEW   SOF_CMD_TYPE(0x001)

SOF_IPC_TPLG_PIPE_COMPLETE

#define SOF_IPC_TPLG_PIPE_COMPLETE   SOF_CMD_TYPE(0x013)

SOF_IPC_TPLG_PIPE_CONNECT

#define SOF_IPC_TPLG_PIPE_CONNECT   SOF_CMD_TYPE(0x012)

SOF_IPC_TPLG_PIPE_FREE

#define SOF_IPC_TPLG_PIPE_FREE   SOF_CMD_TYPE(0x011)

SOF_IPC_TPLG_PIPE_NEW

#define SOF_IPC_TPLG_PIPE_NEW   SOF_CMD_TYPE(0x010)

SOF_IPC_TRACE_DMA_FREE

#define SOF_IPC_TRACE_DMA_FREE   SOF_CMD_TYPE(0x005)

ABI3.20.

SOF_IPC_TRACE_DMA_PARAMS

#define SOF_IPC_TRACE_DMA_PARAMS   SOF_CMD_TYPE(0x001)

SOF_IPC_TRACE_DMA_PARAMS_EXT

#define SOF_IPC_TRACE_DMA_PARAMS_EXT   SOF_CMD_TYPE(0x003)

SOF_IPC_TRACE_DMA_POSITION

#define SOF_IPC_TRACE_DMA_POSITION   SOF_CMD_TYPE(0x002)

SOF_IPC_TRACE_FILTER_UPDATE

#define SOF_IPC_TRACE_FILTER_UPDATE   SOF_CMD_TYPE(0x004)

ABI3.17.