aiot_at_api.h

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#ifndef _AIOT_AT_API_H_
#define _AIOT_AT_API_H_

#if defined(__cplusplus)
extern "C" {
#endif

#include <stdint.h>
#include "core_list.h"
#include "aiot_sysdep_api.h"


#define MODULE_NAME_AT "AT"

#define STATE_AT_BASE (-0x1000)
#define STATE_AT_ALREADY_INITED (-0x1003)
#define STATE_AT_NOT_INITED (-0x1004)
#define STATE_AT_UART_TX_FUNC_MISSING (-0x1005)
#define STATE_AT_GET_RSP_FAILED (-0x1006)
#define STATE_AT_RINGBUF_OVERFLOW (-0x1007)
#define STATE_AT_RX_TIMEOUT (-0x1008)
#define STATE_AT_NO_AVAILABLE_LINK (-0x1009)
#define STATE_AT_TX_TIMEOUT (-0x100A)
#define STATE_AT_TX_ERROR (-0x100B)
#define STATE_AT_RINGBUF_NO_DATA (-0x100C)
#define STATE_AT_UART_TX_FUNC_NULL (-0x100D)
#define STATE_AT_NO_DATA_SLOT (-0x100F)
#define STATE_AT_LINK_IS_DISCONN (-0x1010)
#define STATE_AT_UART_TX_FAILED (-0x1011)

#define AIOT_AT_CMD_LEN_MAXIMUM (128) /* AT命令最大长度 */
#define AIOT_AT_RSP_LEN_MAXIMUM (64) /* AT应答最大长度 */
#define AIOT_AT_TX_TIMEOUT_DEFAULT (5000) /* UART默认发送超时时间 */
#define AIOT_AT_RX_TIMEOUT_DEFAULT (5000) /* UART默认接受等待超时时间 */
#define AIOT_AT_DATA_RB_SIZE_DEFAULT (1200) /* 内部网络数据接收缓冲区大小 */
#define AIOT_AT_RSP_RB_SIZE_DEFAULT (50) /* 内部应答报文接受缓冲区大小 */
#define AIOT_AT_CMD_RETRY_TIME (3) /* AT命令发送重试最大次数 */
#define AIOT_AT_RINGBUF_RETRY_INTERVAL (100) /* RINGBUF数据长度检查间隔时间 */
#define AIOT_AT_SOCKET_NUM (5) /* 支持的数据链路数量 */


#define AIOT_UART_DISABLE_RX_IT() do {;} while(0)
#define AIOT_UART_ENABLE_RX_IT() do {;} while(0)

typedef enum {
 AIOT_ATOPT_UART_TX_FUNC,
 AIOT_ATOPT_USER_DATA,
 AIOT_ATOPT_MAX,
} aiot_at_option_t;

typedef int32_t (*aiot_at_uart_tx_func_t)(const uint8_t *p_data, uint16_t len, uint32_t timeout);

typedef int32_t (*at_rsp_handler_t)(char *rsp, void *user_data);

typedef struct {
 /* 要发送的AT命令 */
 char *cmd;
 /* AT命令的数据长度 */
 uint32_t cmd_len;
 /* 期望的应答数据 */
 char *rsp;
 /* 接受到应答数据后的用户处理回调函数 */
 at_rsp_handler_t handler;
 /* has deleyed response */
 char *delay_rsp;
 /* has expected len*/
 uint32_t expected_len;
} core_at_cmd_item_t;

typedef struct {
 uint8_t *buf;
 uint8_t *head;
 uint8_t *tail;
 uint8_t *end;
 uint32_t size;
 void *mutex;
} core_ringbuf_t;

typedef enum {
 CORE_AT_LINK_DISABLE = 0,
 CORE_AT_LINK_DISCONN = 1,
 CORE_AT_LINK_CONN = 2,
 CORE_AT_LINK_RECV = 3,
} core_at_link_status_t;

typedef struct {
 uint8_t link_status;
 core_ringbuf_t data_rb;
} link_descript_t;

typedef enum {
 CORE_AT_READ_RSP = 0,
 CORE_AT_PARSE_RECV_RSP,
 CORE_AT_READ_DATA,
} core_at_parser_state_t;

typedef struct {
 uint32_t curr_link_id;
 uint32_t data_len;
 core_at_parser_state_t state;
} core_at_parse_sm_t;

typedef struct {
 uint8_t is_init;
 link_descript_t fd[AIOT_AT_SOCKET_NUM];
 uint32_t tx_timeout;
 uint32_t rsp_timeout;

 core_at_parse_sm_t sm;
 core_ringbuf_t rsp_rb;
 char rsp_buf[AIOT_AT_RSP_LEN_MAXIMUM];
 uint32_t rsp_buf_offset;

 aiot_at_uart_tx_func_t uart_tx_func;
 void *tx_mutex;

 void *user_data;
} core_at_handle_t;

int32_t aiot_at_init(void);

int32_t aiot_at_setopt(aiot_at_option_t opt, void *data);

int32_t aiot_at_bootstrap(void);

int32_t aiot_at_nwk_open(uint8_t *socket_id);

int32_t aiot_at_nwk_connect(uint8_t socket_id, const char *host, uint16_t port, uint32_t timeout);

int32_t aiot_at_nwk_send(uint8_t socket_id, const uint8_t *buffer, uint32_t len, uint32_t timeout);

int32_t aiot_at_nwk_recv(uint8_t socket_id, uint8_t *buffer, uint32_t len, uint32_t timeout_ms);

int32_t aiot_at_nwk_close(uint8_t socket_id);

int32_t aiot_at_uart_reception(uint8_t data);

int32_t aiot_at_deinit(void);


#if defined(__cplusplus)
}
#endif

#endif