AT-Command/at.h

/******************************************************************************
 * @brief        AT<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD>Ź<EFBFBD><EFBFBD><EFBFBD>(OS<EFBFBD>汾)
 *
 * Copyright (c) 2020, <morro_luo@163.com>
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs: 
 * Date           Author       Notes 
 * 2020-01-02     Morro        Initial version. 
 * 2021-02-01     Morro        ֧<EFBFBD><EFBFBD>URC<EFBFBD>ص<EFBFBD><EFBFBD>н<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
 * 2021-02-05     Morro        1.<EFBFBD>޸<EFBFBD>struct at_obj,ȥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 *                             2.ɾ<EFBFBD><EFBFBD> at_obj_destroy<EFBFBD>ӿ<EFBFBD>
 ******************************************************************************/

#ifndef _AT_H_
#define _AT_H_

#include "at_util.h"
#include <stdbool.h>

/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EEB3A4> */ 
#define MAX_AT_CMD_LEN        128

/* <20><><EFBFBD><EFBFBD>urc<72><63><EFBFBD>ճ<EFBFBD>ʱʱ<CAB1><CAB1>*/  
#define MAX_URC_RECV_TIMEOUT  300      

/* ָ<><D6B8><EFBFBD><EFBFBD>URC <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>б<EFBFBD> */
#define SPEC_URC_END_MARKS     ",\r\n"
     
struct at_obj;                                                /* AT<41><54><EFBFBD><EFBFBD>*/

/*AT<41><54><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6> ---------------------------------------------------------------*/
typedef enum {
    AT_RET_OK = 0,                                            /* ִ<>гɹ<D0B3>*/
    AT_RET_ERROR,                                             /* ִ<>д<EFBFBD><D0B4><EFBFBD>*/
    AT_RET_TIMEOUT,                                           /* <20><>Ӧ<EFBFBD><D3A6>ʱ*/
	AT_RET_ABORT,                                             /* δ֪<CEB4><D6AA><EFBFBD><EFBFBD>*/
}at_return;

/**
 * @brief URC <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(Context) <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
typedef struct {
    /**
     * @brief   <EFBFBD><EFBFBD><EFBFBD>ݶ<EFBFBD>ȡ<EFBFBD>ӿ<EFBFBD>
     * @params  buf   - <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
     * @params  len   - <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С    
     */
    unsigned int (*read)(void *buf, unsigned int len);       
    char *buf;                                                /* <20><><EFBFBD>ݻ<EFBFBD><DDBB><EFBFBD><EFBFBD><EFBFBD> */
    int bufsize;                                              /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С */
    int recvlen;                                              /* <20>ѽ<EFBFBD><D1BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><DDB3><EFBFBD>*/
} at_urc_ctx_t;

/*(Unsolicited Result Codes (URCs))<29><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ------------------------------------*/
typedef struct {
    /**
     * @brief urc ǰ׺(<EFBFBD><EFBFBD>"+CSQ: ")
     */    
    const char *prefix;
    /**
     * @brief urc ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(<EFBFBD>ο<EFBFBD>DEF_URC_END_MARKS<EFBFBD>б<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĭ<EFBFBD><EFBFBD>"\n")
     * @note  
     */     
    const char *end_mark;
    /**
     * @brief       urc<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
     * @params      ctx - URC <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
     */
    void (*handler)(at_urc_ctx_t *ctx);
}utc_item_t;
    
/**AT<41>ӿ<EFBFBD><D3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> --------------------------------------------------------------*/
typedef struct {
    //<2F><><EFBFBD><EFBFBD>д<EFBFBD><D0B4><EFBFBD><EFBFBD>
    unsigned int (*write)(const void *buf, unsigned int len);
    //<2F><><EFBFBD>ݶ<EFBFBD><DDB6><EFBFBD><EFBFBD><EFBFBD>
    unsigned int (*read)(void *buf, unsigned int len);         
    //<2F><><EFBFBD>Դ<EFBFBD>ӡ<EFBFBD><D3A1><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>NULL
    void         (*debug)(const char *fmt, ...);  
    //utc <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>NULL
	utc_item_t    *utc_tbl;
    //urc<72><63><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>NULL
	char          *urc_buf;
    //urc<72><63><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>0
	unsigned short urc_tbl_count;  
    //urc<72><63><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С,<2C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>0
	unsigned short urc_bufsize;
}at_adapter_t;

/*AT<41><54>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD> -----------------------------------------------------------------*/
typedef struct {    
    const char    *matcher;                                   /* <20><><EFBFBD><EFBFBD>ƥ<EFBFBD>䴮 */
    char          *recvbuf;                                   /* <20><><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD><EFBFBD><EFBFBD> */
    unsigned short bufsize;                                   /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
    unsigned int   timeout;                                   /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱʱ<CAB1><CAB1> */
}at_respond_t;

/** work context  ------------------------------------------------------------*/
/**
 * @brief AT<EFBFBD><EFBFBD>ҵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>(Work Context) <EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
typedef struct at_work_ctx {
    //<2F><>ҵ<EFBFBD><D2B5><EFBFBD><EFBFBD>,<2C><>at_do_work<72>ӿڴ<D3BF><DAB4><EFBFBD>
	void          *params;                                     
    unsigned int (*write)(const void *buf, unsigned int len);
    unsigned int (*read)(void *buf, unsigned int len);
    
    //<2F><>ӡ<EFBFBD><D3A1><EFBFBD><EFBFBD>
	void         (*printf)(struct at_work_ctx *self, const char *fmt, ...);
    //<2F><>Ӧ<EFBFBD>ȴ<EFBFBD>
	at_return    (*wait_resp)(struct at_work_ctx *self, const char *prefix, 
                              unsigned int timeout);
    //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ջ<EFBFBD><D5BB><EFBFBD>
    void         (*recvclr)(struct at_work_ctx *self); 
}at_work_ctx_t;

/*AT<41><54><EFBFBD><EFBFBD> ---------------------------------------------------------------------*/
typedef struct at_obj {
	at_adapter_t            adap;                             /* <20>ӿ<EFBFBD><D3BF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>*/
    at_work_ctx_t           ctx;                              /* work context*/
	at_sem_t                cmd_lock;                         /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>*/
	at_sem_t                completed;                        /* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ź<EFBFBD>*/
    at_respond_t            *resp;                            /* ATӦ<54><D3A6><EFBFBD><EFBFBD>Ϣ*/
	unsigned int            resp_timer;                       /* <20><>Ӧ<EFBFBD><D3A6><EFBFBD>ն<EFBFBD>ʱ<EFBFBD><CAB1>*/
	unsigned int            urc_timer;                        /* URC<52><43>ʱ<EFBFBD><CAB1> */
	at_return               ret;                              /* <20><><EFBFBD><EFBFBD>ִ<EFBFBD>н<EFBFBD><D0BD><EFBFBD>*/
	//urc<72><63><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD>ռ<EFBFBD><D5BC><EFBFBD><EFBFBD><EFBFBD>
	unsigned short          urc_cnt, rcv_cnt;
	unsigned char           busy   : 1;
	unsigned char           suspend: 1;
    unsigned char           dowork : 1;
}at_obj_t;

typedef at_return (*at_work)(at_work_ctx_t *);

void at_obj_create(at_obj_t *at, const at_adapter_t *adap);    /* AT<41><54>ʼ<EFBFBD><CABC>*/

void at_obj_destroy(at_obj_t *at);

bool at_obj_busy(at_obj_t *at);

void at_suspend(at_obj_t *at);                                 /* <20><><EFBFBD><EFBFBD>*/
 
void at_resume(at_obj_t *at);                                  /* <20>ָ<EFBFBD>*/

at_return at_do_cmd(at_obj_t *at, at_respond_t *r, const char *cmd);

//<2F><>Ӧ<EFBFBD>зָ<D6B8><EEB4A6>
int at_split_respond_lines(char *recvbuf, char *lines[], int count, char separator);

at_return at_do_work(at_obj_t *at, at_work work, void *params);/* <20>Զ<EFBFBD><D4B6><EFBFBD>AT<41><54>ҵ*/

void at_process(at_obj_t *at);                                 /* AT<41><54><EFBFBD>մ<EFBFBD><D5B4><EFBFBD>*/
        
#endif