78 lines
2.4 KiB
C
78 lines
2.4 KiB
C
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/****************************************************************************
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Copyright(c) 2019 by Aerospace C.Power (Chongqing) Microelectronics. ALL RIGHTS RESERVED.
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This Information is proprietary to Aerospace C.Power (Chongqing) Microelectronics and MAY NOT
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be copied by any method or incorporated into another program without
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the express written consent of Aerospace C.Power. This Information or any portion
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thereof remains the property of Aerospace C.Power. The Information contained herein
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is believed to be accurate and Aerospace C.Power assumes no responsibility or
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liability for its use in any way and conveys no license or title under
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any patent or copyright and makes no representation or warranty that this
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Information is free from patent or copyright infringement.
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****************************************************************************/
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#ifndef _MAILBOX_H_
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#define _MAILBOX_H_
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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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* @brief iot_mb_msg_cb() - 当某个core收到数据时，该函数被自动调用
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* @param core_id: 表示数据是从哪个core发来的
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*/
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typedef void(*iot_mb_msg_cb)(int core_id);
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/**
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* @brief iot_mb_open() - 打开mailbox并注册中断回调函数
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* @param cb: 接收到数据时的回调函数，该函数要完成数据的读取和处理
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*/
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uint32_t iot_mb_open(iot_mb_msg_cb cb);
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/**
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* @brief iot_mb_close() - 关闭mailbox
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*/
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uint32_t iot_mb_close(void);
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/**
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* @brief iot_mb_write() - 向其他core发送数据
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* @param core_id: 指示发送给哪个core，注意不能发送给自己
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* @param data ： 要发送的数据
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*/
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uint32_t iot_mb_write(uint32_t core_id, uint32_t data);
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/**
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* @brief iot_mb_read() - 读取其他core发来的数据
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* @param core_id: 指示从哪个core读取数据
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* @param p_data ： 内存地址
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*/
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uint32_t iot_mb_read(uint32_t core_id, uint32_t *p_data);
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/**
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* @brief iot_mb_get_read_space() - 获取指定的core向本core发了多少字节的数据，单位WORD
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* @param core_id: 指示获取哪个core
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*/
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uint32_t iot_mb_get_read_space(uint32_t core_id);
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/**
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* @brief iot_mb_get_write_space() - 获取指定的core还能接收多少字节的数据，单位WORD
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* @param core_id: 指示获取哪个core
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*/
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uint32_t iot_mb_get_write_space(uint32_t core_id);
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/**
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* @brief iot_mb_init() - 初始化mailbox
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*/
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void iot_mb_init(void);
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uint32_t iot_mb_mask();
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uint32_t iot_mb_unmask();
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#ifdef __cplusplus
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}
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#endif
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#endif
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