root/include/sound/sof/header.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) 2018 Intel Corporation
 */

#ifndef __INCLUDE_SOUND_SOF_HEADER_H__
#define __INCLUDE_SOUND_SOF_HEADER_H__

#include <linux/types.h>
#include <uapi/sound/sof/abi.h>

/** \addtogroup sof_uapi uAPI
 *  SOF uAPI specification.
 *  @{
 */

/*
 * IPC messages have a prefixed 32 bit identifier made up as follows :-
 *
 * 0xGCCCNNNN where
 * G is global cmd type (4 bits)
 * C is command type (12 bits)
 * I is the ID number (16 bits) - monotonic and overflows
 *
 * This is sent at the start of the IPM message in the mailbox. Messages should
 * not be sent in the doorbell (special exceptions for firmware .
 */

/* Global Message - Generic */
#define SOF_GLB_TYPE_SHIFT                      28
#define SOF_GLB_TYPE_MASK                       (0xfUL << SOF_GLB_TYPE_SHIFT)
#define SOF_GLB_TYPE(x)                         ((x) << SOF_GLB_TYPE_SHIFT)

/* Command Message - Generic */
#define SOF_CMD_TYPE_SHIFT                      16
#define SOF_CMD_TYPE_MASK                       (0xfffL << SOF_CMD_TYPE_SHIFT)
#define SOF_CMD_TYPE(x)                         ((x) << SOF_CMD_TYPE_SHIFT)

/* 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_MSG                    SOF_GLB_TYPE(0xBU)
#define SOF_IPC_GLB_PROBE                       SOF_GLB_TYPE(0xCU)
#define SOF_IPC_GLB_DEBUG                       SOF_GLB_TYPE(0xDU)

/*
 * DSP Command Message Types
 */

/* 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)

/* 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)

/* 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)

/* DAI messages */
#define SOF_IPC_DAI_CONFIG                      SOF_CMD_TYPE(0x001)
#define SOF_IPC_DAI_LOOPBACK                    SOF_CMD_TYPE(0x002)

/* 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)

/* probe */
#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)

/* trace */
#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 */

/* debug */
#define SOF_IPC_DEBUG_MEM_USAGE                 SOF_CMD_TYPE(0x001)

/* test */
#define SOF_IPC_TEST_IPC_FLOOD                  SOF_CMD_TYPE(0x001)

/* Get message component id */
#define SOF_IPC_MESSAGE_ID(x)                   ((x) & 0xffff)

/* maximum message size for mailbox Tx/Rx */
#define SOF_IPC_MSG_MAX_SIZE                    384

/*
 * Structure Header - Header for all IPC structures except command structs.
 * The size can be greater than the structure size and that means there is
 * extended bespoke data beyond the end of the structure including variable
 * arrays.
 */

struct sof_ipc_hdr {
        uint32_t size;                  /**< size of structure */
} __packed;

/*
 * Command Header - Header for all IPC commands. Identifies IPC message.
 * The size can be greater than the structure size and that means there is
 * extended bespoke data beyond the end of the structure including variable
 * arrays.
 */

struct sof_ipc_cmd_hdr {
        uint32_t size;                  /**< size of structure */
        uint32_t cmd;                   /**< SOF_IPC_GLB_ + cmd */
} __packed;

/*
 * Generic reply message. Some commands override this with their own reply
 * types that must include this at start.
 */
struct sof_ipc_reply {
        struct sof_ipc_cmd_hdr hdr;
        int32_t error;                  /**< negative error numbers */
}  __packed;

/*
 * Compound commands - SOF_IPC_GLB_COMPOUND.
 *
 * Compound commands are sent to the DSP as a single IPC operation. The
 * commands are split into blocks and each block has a header. This header
 * identifies the command type and the number of commands before the next
 * header.
 */

struct sof_ipc_compound_hdr {
        struct sof_ipc_cmd_hdr hdr;
        uint32_t count;         /**< count of 0 means end of compound sequence */
}  __packed;

/**
 * OOPS header architecture specific data.
 */
struct sof_ipc_dsp_oops_arch_hdr {
        uint32_t arch;          /* Identifier of architecture */
        uint32_t totalsize;     /* Total size of oops message */
}  __packed;

/**
 * OOPS header platform specific data.
 */
struct sof_ipc_dsp_oops_plat_hdr {
        uint32_t configidhi;    /* ConfigID hi 32bits */
        uint32_t configidlo;    /* ConfigID lo 32bits */
        uint32_t numaregs;      /* Special regs num */
        uint32_t stackoffset;   /* Offset to stack pointer from beginning of
                                 * oops message
                                 */
        uint32_t stackptr;      /* Stack ptr */
}  __packed;

/** @}*/

#endif