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52 lines
1.1 KiB
C
52 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2021 MediaTek Inc.
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*/
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/**
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* @file dci.h
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* @brief Contains DCI (Driver Control
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* Interface) definitions and data structures
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*
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*/
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#ifndef __DCI_H__
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#define __DCI_H__
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typedef uint32_t dciCommandId_t;
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typedef uint32_t dciResponseId_t;
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typedef uint32_t dciReturnCode_t;
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/**< Responses have bit 31 set */
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#define RSP_ID_MASK (1U << 31)
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#define RSP_ID(cmdId) (((uint32_t)(cmdId)) | RSP_ID_MASK)
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#define IS_CMD(cmdId) ((((uint32_t)(cmdId)) & RSP_ID_MASK) == 0)
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#define IS_RSP(cmdId) ((((uint32_t)(cmdId)) & RSP_ID_MASK) == RSP_ID_MASK)
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/**
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* Return codes of driver commands.
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*/
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#define RET_OK 0
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#define RET_ERR_UNKNOWN_CMD 1
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#define RET_ERR_NOT_SUPPORTED 2
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#define RET_ERR_INTERNAL_ERROR 3
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/* ... add more error codes when needed */
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/**
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* DCI command header.
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*/
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struct dciCommandHeader_t {
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dciCommandId_t commandId; /**< Command ID */
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};
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/**
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* DCI response header.
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*/
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struct dciResponseHeader_t {
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dciResponseId_t responseId; /**< Response ID (Cmd_Id|RSP_ID_MASK) */
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dciReturnCode_t returnCode; /**< Return code of command */
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};
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#endif
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