AT-Command/Demo/user/task/wifi_task.c

/******************************************************************************
 * @brief    wifi<EFBFBD><EFBFBD><EFBFBD><EFBFBD>(AT-command<EFBFBD><EFBFBD>ʾ, ʹ<EFBFBD>õ<EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>M169WI-FI)
 *
 * Copyright (c) 2020, <morro_luo@163.com>
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs: 
 * Date           Author       Notes 
 * 2021/01/20     Morro    
 ******************************************************************************/
#include "at_chat.h"
#include "wifi_uart.h"
#include "public.h"
#include "module.h"
#include <stdio.h>
#include <stdbool.h>


/* Private variables ---------------------------------------------------------*/
/* 
 * @brief   <EFBFBD><EFBFBD><EFBFBD><EFBFBD>AT<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
static at_obj_t at;


/* Private function prototypes -----------------------------------------------*/
void wifi_open(void);
void wifi_close(void);
static void at_error(void);
void wifi_query_version(void);

/* Private functions ---------------------------------------------------------*/
/* 
 * @brief   wifi urc<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
//static unsigned char wifi_urcbuf[256];

/* 
 * @brief   wifi <EFBFBD><EFBFBD><EFBFBD>ݽ<EFBFBD><EFBFBD>ջ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
static unsigned char wifi_recvbuf[256];



/* 
 * @brief   AT<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
static const at_adapter_t  at_adapter = {
    .write    = wifi_uart_write,
    .read     = wifi_uart_read,
    .error    = at_error,
    .utc_tbl  = NULL,
    .urc_buf  = NULL,
    .recv_buf = wifi_recvbuf,
    .urc_tbl_count = 0,
    .urc_bufsize   = 0,
    .recv_bufsize = sizeof(wifi_recvbuf)
};

/* 
 * @brief   <EFBFBD><EFBFBD><EFBFBD><EFBFBD>wifi
 */
void wifi_open(void)
{
    GPIO_SetBits(GPIOA, GPIO_Pin_4);
    printf("wifi open\r\n");
}
/* 
 * @brief   <EFBFBD>ر<EFBFBD>wifi
 */
void wifi_close(void)
{
    GPIO_ResetBits(GPIOA, GPIO_Pin_4);
    printf("wifi close\r\n");
}


/* 
 * @brief   WIFI<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD><EFBFBD>
 * @return  true - <EFBFBD>˳<EFBFBD>״̬<EFBFBD><EFBFBD>, false - <EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD><EFBFBD>,
 */
static int wifi_reset_work(at_env_t *e)
{
    at_obj_t *a = (at_obj_t *)e->params;
    switch (e->state) {
    case 0:                                //<2F>ر<EFBFBD>WIFI<46><49>Դ
        wifi_close();
        e->reset_timer(a);
        e->state++;
        break;
    case 1:
        if (e->is_timeout(a, 2000))       //<2F><>ʱ<EFBFBD>ȴ<EFBFBD>2s
            e->state++;
        break;
    case 2:
        wifi_open();                       //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>wifi
        e->state++;
        break;
    case 3:
        if (e->is_timeout(a, 2000))       //<2F><>ʱ<EFBFBD>ȴ<EFBFBD>2s      
            return true;  
        break;
    }
    return false;
}
/* 
 * @brief   wifi ͨ<EFBFBD><EFBFBD><EFBFBD>쳣<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
static void at_error(void)
{
    printf("wifi AT communication error\r\n");
    //ִ<><D6B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ҵ
    at_do_work(&at, wifi_reset_work, &at);        
}

/* 
 * @brief    <EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD>ص<EFBFBD>
 */
static void at_init_callbatk(at_response_t *r)
{    
    if (r->ret == AT_RET_OK ) {
        printf("wifi Initialization successfully...\r\n");
        
        /* <20><>ѯ<EFBFBD>汾<EFBFBD><E6B1BE>*/
        wifi_query_version();
        
    } else 
        printf("wifi Initialization failure...\r\n");
}

/* 
 * @brief    wifi<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
static const char *wifi_init_cmds[] = {
    "AT+GPIO_WR=1,1\r\n",
    "AT+GPIO_WR=2,0\r\n",
    "AT+GPIO_WR=3,1\r\n",
    NULL
};


/* 
 * @brief    wifi<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD>
 */
void wifi_init(void)
{
    RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA , ENABLE);
    gpio_conf(GPIOA, GPIO_Mode_OUT, GPIO_PuPd_NOPULL, GPIO_Pin_4);
    
    wifi_uart_init(115200);
    at_obj_init(&at, &at_adapter);
         
    //<2F><><EFBFBD><EFBFBD>WIFI
    at_do_work(&at, wifi_reset_work, &at);        
    
    //<2F><>ʼ<EFBFBD><CABC>wifi
    at_send_multiline(&at, at_init_callbatk, wifi_init_cmds);  
    
    //GPIO<49><4F><EFBFBD><EFBFBD>
    at_send_singlline(&at, NULL, "AT+GPIO_TEST_EN=1\r\n");  
    
}driver_init("wifi", wifi_init); 



/* 
 * @brief    wifi<EFBFBD><EFBFBD><EFBFBD><EFBFBD>(10ms <EFBFBD><EFBFBD>ѯ1<EFBFBD><EFBFBD>)
 */
void wifi_task(void)
{
    at_poll_task(&at);
}task_register("wifi", wifi_task, 10);


/** <20>DZ<EFBFBD>׼AT<41><54><EFBFBD><EFBFBD>----------------------------------------------------------------
 *  <EFBFBD>Բ<EFBFBD>ѯ<EFBFBD>汾<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>:
 * ->  AT+VER\r\n
 * <-  VERSION:M169-YH01
 *  
 */

//<2F><>ʽ1, ʹ<><CAB9>at_do_cmd<6D>ӿ<EFBFBD>

/* 
 * @brief    <EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD>AT<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
static void at_ver_sender(at_env_t *e)
{
    e->printf(&at, "AT+VER\r\n");
}
/* 
 * @brief    <EFBFBD>汾<EFBFBD><EFBFBD>ѯ<EFBFBD>ص<EFBFBD>
 */
static void query_version_callback(at_response_t *r)
{
    if (r->ret == AT_RET_OK ) {
        printf("wifi version info : %s\r\n", r->recvbuf);
    } else 
        printf("wifi version query failure...\r\n");
}

/* <20><><EFBFBD><EFBFBD>AT<41><54><EFBFBD><EFBFBD>*/
static const at_cmd_t at_cmd_ver = {
    at_ver_sender,                   //<2F>Զ<EFBFBD><D4B6><EFBFBD>AT<41><54><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    "VERSION:",                      //<2F><><EFBFBD><EFBFBD>ƥ<EFBFBD><C6A5>ǰ׺
    query_version_callback,          //<2F><>ѯ<EFBFBD>ص<EFBFBD>
    3, 3000                          //<2F><><EFBFBD>Դ<EFBFBD><D4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱʱ<CAB1><CAB1>
};

/* 
 * @brief    ִ<EFBFBD>а汾<EFBFBD><EFBFBD>ѯ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 */
void wifi_query_version(void)
{
    at_do_cmd(&at, NULL, &at_cmd_ver);
}