78 lines
1.6 KiB
C
78 lines
1.6 KiB
C
#include "at_parser.h"
|
||
#include "uart-board.h"
|
||
|
||
#ifndef AT_CMD_BUF_LEN
|
||
#define AT_CMD_BUF_LEN 512
|
||
#endif
|
||
|
||
#ifndef UART_RECV_TIMEOUT
|
||
#define UART_RECV_TIMEOUT 15000
|
||
#endif
|
||
|
||
static at_uart_ops_t *uart_ops;
|
||
static at_table_t *cmd_table;
|
||
|
||
int at_parser_init(at_uart_ops_t *ops, at_table_t *table)
|
||
{
|
||
if (ops && table)
|
||
{
|
||
uart_ops = ops;
|
||
cmd_table = table;
|
||
|
||
if(ops->init)
|
||
return ops->init();
|
||
else
|
||
return 0;
|
||
}
|
||
else
|
||
return -1;
|
||
}
|
||
|
||
int at_cmd_handle(void)
|
||
{
|
||
uint8_t tmp_buf[AT_CMD_BUF_LEN];
|
||
uint16_t len = 0, i;
|
||
uint32_t n = 0;
|
||
uint16_t cmd_len = 0;
|
||
|
||
if(!uart_ops || !cmd_table)
|
||
return -1;
|
||
|
||
/*收到\r\n或超时，接收完成*/
|
||
while(n++ < UART_RECV_TIMEOUT)
|
||
{
|
||
if(uart_ops->recv(tmp_buf+len, 1) == 1)
|
||
{
|
||
len++;
|
||
n = 0;
|
||
}
|
||
}
|
||
|
||
/*指令结束标志*/
|
||
if(tmp_buf[len-2] == 0x0D/*'\r'*/ && tmp_buf[len-1] == 0x0A/*'\n'*/)
|
||
{
|
||
/*长度不包含\r\n*/
|
||
len -= 2;
|
||
}
|
||
|
||
/*查询AT指令，并执行*/
|
||
for(i = 0; cmd_table[i].cmd; i++)
|
||
{
|
||
cmd_len = strlen(cmd_table[i].cmd);
|
||
if(len >= cmd_len)
|
||
{
|
||
#ifdef AT_IGNORE_CASE
|
||
if(strncasecmp((const char*)cmd_table[i].cmd, (const char*)tmp_buf, cmd_len) == 0)
|
||
#else
|
||
if(memcmp((const char*)cmd_table[i].cmd, (const char*)tmp_buf, cmd_len) == 0)
|
||
#endif
|
||
{
|
||
/*将=后的参数输入*/
|
||
return cmd_table[i].func(tmp_buf + cmd_len, len - cmd_len);
|
||
}
|
||
}
|
||
}
|
||
|
||
return -1;
|
||
}
|