244 lines
9.3 KiB
C++
244 lines
9.3 KiB
C++
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/*==================================================================================================
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* Project : S32K3_miniEvb
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* Platform : CORTEXM
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* Peripheral : S32K3XX
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* Dependencies : none
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*
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* Autosar Version : 4.7.0
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* Autosar Revision : ASR_REL_4_7_REV_0000
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* Autosar Conf.Variant :
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* SW Version : 0.1.0
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* Build Version :
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*
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* Copyright 2026 - 20xx HuaXu
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*
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* HuaXu Confidential. This software is owned or controlled by HuaXu and may only be
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* used strictly in accordance with the applicable license terms. By expressly
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* accepting such terms or by downloading, installing, activating and/or otherwise
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* using the software, you are agreeing that you have read, and that you agree to
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* comply with and are bound by, such license terms. If you do not agree to be
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* bound by the applicable license terms, then you may not retain, install,
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* activate or otherwise use the software.
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==================================================================================================*/
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/*==================================================================================================
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* File version history:
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* 0.1.0 initial version
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==================================================================================================*/
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/**
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* @file spi_protocol.hpp
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* @version 0.1.0
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* @brief SPI Protocol v2.0 — SOC/MCU 通信组包/解包
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*
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* @addtogroup SPI
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* @{
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*/
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#ifndef SPI_PROTOCOL_HPP
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#define SPI_PROTOCOL_HPP
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#ifdef __cplusplus
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extern "C"{
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#endif
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/*==================================================================================================
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INCLUDE FILES
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==================================================================================================*/
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#include <stdint.h>
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/*==================================================================================================
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CONSTANTS
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==================================================================================================*/
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/* 帧固定字段 */
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#define SPI_PROTO_SOF 0xAAu
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#define SPI_PROTO_EOF 0x55u
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#define SPI_PROTO_VERSION 0x01u
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/* 帧长配置（4 选 1） */
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#define SPI_PROTO_FRAME_64 64u
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#define SPI_PROTO_FRAME_128 128u
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#define SPI_PROTO_FRAME_256 256u
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#define SPI_PROTO_FRAME_512 512u
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#define SPI_PROTO_FRAME_1024 1024u
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/* 默认帧长 */
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#define SPI_PROTO_FRAME_SIZE SPI_PROTO_FRAME_128
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/* HEAD 长度 = Version(1) + FrameType(1) + Seq(2) + Timestamp(4) + PacketCount(1) + TotalLen(2) */
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#define SPI_PROTO_HEAD_LEN 11u
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/* 帧开销 = SOF(1) + HEAD(11) + CRC16(2) + EOF(1) */
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#define SPI_PROTO_OVERHEAD 15u
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/* 最大 Payload 字节数 */
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#define SPI_PROTO_MAX_PAYLOAD (SPI_PROTO_FRAME_SIZE - SPI_PROTO_OVERHEAD)
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/* 最大 TLV 数量 */
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#define SPI_PROTO_MAX_TLV_COUNT 16u
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/* TLV 头部长度 = ServiceID(1) + MethodID(1) + Length(2) */
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#define SPI_PROTO_TLV_HEAD_LEN 4u
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/* ——— FrameType ——— */
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typedef enum
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{
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SPI_PROTO_FRAME_DATA = 0x00u, /* MCU→SOC 常规上报 */
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SPI_PROTO_FRAME_CTRL = 0x01u, /* SOC→MCU 控制/配置 */
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SPI_PROTO_FRAME_ACK = 0x02u, /* 通用确认 */
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SPI_PROTO_FRAME_NACK = 0x03u, /* 错误应答 */
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SPI_PROTO_FRAME_HEARTBEAT = 0x04u /* 心跳 */
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} SpiProtocol_FrameType;
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/* ——— ServiceID ——— */
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#define SPI_PROTO_SID_SYSTEM 0x01u
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#define SPI_PROTO_SID_AC 0x02u
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#define SPI_PROTO_SID_KEY 0x03u
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#define SPI_PROTO_SID_VEHICLE 0x04u
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#define SPI_PROTO_SID_CAN 0x05u
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#define SPI_PROTO_SID_UPDATE 0x06u
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#define SPI_PROTO_SID_CLUSTER 0x07u
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#define SPI_PROTO_SID_LOG 0x08u
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#define SPI_PROTO_SID_TEST 0x09u
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#define SPI_PROTO_SID_DIAG 0x0Au
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#define SPI_PROTO_SID_PASS 0x0Bu
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#define SPI_PROTO_SID_AUDIO 0x0Cu
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#define SPI_PROTO_SID_AVM 0x0Du
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#define SPI_PROTO_SID_BSD 0x0Eu
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#define SPI_PROTO_SID_DMS 0x0Fu
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#define SPI_PROTO_SID_ADAS 0x10u
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#define SPI_PROTO_SID_THEME 0x11u
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#define SPI_PROTO_SID_POWERMANAGER 0x12u
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#define SPI_PROTO_SID_RVC 0x13u
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#define SPI_PROTO_SID_ERROR 0xFEu /* NACK 错误信息 */
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/* ——— NACK 错误码 ——— */
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#define SPI_PROTO_ERR_NONE 0x00u
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#define SPI_PROTO_ERR_CRC 0x01u
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#define SPI_PROTO_ERR_VERSION 0x02u
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#define SPI_PROTO_ERR_SOF 0x03u
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#define SPI_PROTO_ERR_EOF 0x04u
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#define SPI_PROTO_ERR_TOTALLEN 0x05u
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#define SPI_PROTO_ERR_TLV_PARSE 0x06u
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#define SPI_PROTO_ERR_PKTCOUNT 0x07u
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#define SPI_PROTO_ERR_FRAMETYPE 0x08u
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#define SPI_PROTO_ERR_PADDING 0x09u
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#define SPI_PROTO_ERR_TRUNCATED 0x0Au
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/* ——— 解包返回码 ——— */
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#define SPI_PROTO_OK 0
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#define SPI_PROTO_ERR_PARAM (-1)
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#define SPI_PROTO_ERR_SIZE (-2)
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#define SPI_PROTO_ERR_SOF_MISMATCH (-3)
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#define SPI_PROTO_ERR_EOF_MISMATCH (-4)
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#define SPI_PROTO_ERR_CRC_MISMATCH (-5)
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#define SPI_PROTO_ERR_VERSION_MISMATCH (-6)
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#define SPI_PROTO_ERR_TOTALLEN_OVF (-7)
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#define SPI_PROTO_ERR_PKTCOUNT_OVF (-8)
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#define SPI_PROTO_ERR_TLV_TRUNC (-9)
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#define SPI_PROTO_ERR_PADDING_NZ (-10)
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#define SPI_PROTO_ERR_FRAME_SHORT (-11)
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/*==================================================================================================
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TYPEDEFS
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==================================================================================================*/
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/**
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* @brief TLV 子包描述
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* @note value 指针由调用方管理，组包时指向待发送数据，解包时指向 frame 内数据
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*/
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typedef struct
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{
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uint8_t service_id; /**< 业务大类 */
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uint8_t method_id; /**< 业务子类 */
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uint16_t length; /**< Value 字节数（不含 T+L） */
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const uint8_t *value; /**< Value 数据指针 */
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} SpiProtocol_TlvType;
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/**
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* @brief 解包输出结果
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*/
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typedef struct
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{
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SpiProtocol_FrameType frame_type; /**< 帧类型 */
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uint16_t seq; /**< 帧序号 */
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uint32_t timestamp; /**< 时间戳 (ms) */
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uint8_t tlv_count; /**< 实际 TLV 数量 */
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SpiProtocol_TlvType tlvs[SPI_PROTO_MAX_TLV_COUNT]; /**< TLV 列表 */
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uint8_t nack_error_code; /**< NACK 帧时有效 */
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} SpiProtocol_RxResultType;
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/*==================================================================================================
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GLOBAL FUNCTION PROTOTYPES
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==================================================================================================*/
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/**
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* @brief 计算 CRC16（HEAD + Payload 范围）
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* @param data 数据起始指针（指向 HEAD 首字节 Version）
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* @param len 数据长度
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* @return CRC16 值
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*/
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uint16_t SpiProtocol_CalcCrc16(const uint8_t *data, uint16_t len);
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/**
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* @brief 组包：将 TLV 列表打包为完整帧
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* @param frame 输出帧缓冲区（调用方分配，大小 ≥ SPI_PROTO_FRAME_SIZE）
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* @param frame_size 帧长配置（128/256/512/1024）
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* @param frame_type 帧类型
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* @param seq 帧序号
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* @param timestamp 时间戳 (ms)
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* @param tlvs TLV 数组
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* @param tlv_count TLV 数量
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* @return >=0: 实际帧字节数（= frame_size）; <0: 错误码
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*/
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int32_t SpiProtocol_Pack(uint8_t *frame, uint16_t frame_size,
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SpiProtocol_FrameType frame_type, uint16_t seq, uint32_t timestamp,
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const SpiProtocol_TlvType *tlvs, uint8_t tlv_count);
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/**
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* @brief 解包：解析接收帧，输出 TLV 列表
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* @param frame 接收帧缓冲区
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* @param frame_len 接收数据长度
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* @param frame_size 预期帧长配置（128/256/512/1024）
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* @param result 输出解析结果
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* @return >=0: 成功（返回 TLV 数量）; <0: 错误码
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*/
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int32_t SpiProtocol_Unpack(const uint8_t *frame, uint16_t frame_len,
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uint16_t frame_size,
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SpiProtocol_RxResultType *result);
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/**
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* @brief 构造 ACK 帧（确认指定 seq 的帧）
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* @param frame 输出帧缓冲区
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* @param frame_size 帧长配置
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* @param ack_seq 被确认帧的序号
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* @return >=0: 实际帧字节数; <0: 错误码
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*/
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int32_t SpiProtocol_PackAck(uint8_t *frame, uint16_t frame_size, uint16_t ack_seq);
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/**
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* @brief 构造 NACK 帧
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* @param frame 输出帧缓冲区
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* @param frame_size 帧长配置
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* @param ack_seq 被否定应答帧的序号
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* @param error_code 错误码（见 SPI_PROTO_ERR_xxx）
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* @return >=0: 实际帧字节数; <0: 错误码
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*/
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int32_t SpiProtocol_PackNack(uint8_t *frame, uint16_t frame_size,
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uint16_t ack_seq, uint8_t error_code);
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/**
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* @brief 构造心跳帧
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* @param frame 输出帧缓冲区
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* @param frame_size 帧长配置
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* @param seq 帧序号
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* @return >=0: 实际帧字节数; <0: 错误码
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*/
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int32_t SpiProtocol_PackHeartbeat(uint8_t *frame, uint16_t frame_size, uint16_t seq);
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#ifdef __cplusplus
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}
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#endif
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#endif /* SPI_PROTOCOL_HPP */
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/** @} */
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