SumProject/applications/assistant.c

/*
 * 程序清单：这是一个串口设备 开启 DMA 模式后使用例程
 * 例程导出了 uart_dma_sample 命令到控制终端
 * 命令调用格式：uart_dma_sample uart1
 * 命令解释：命令第二个参数是要使用的串口设备名称，为空则使用默认的串口设备
 * 程序功能：通过串口输出字符串 "hello RT-Thread!"，并通过串口输出接收到的数据，然后打印接收到的数据。
 */

#include <rtthread.h>
#include <rtdevice.h>
#include "status.h"

#define SAMPLE_UART_NAME "uart3" /* 串口设备名称 */

#define LOG_TAG "assistant"
#define DBG_LVL DBG_LOG
// #define DBG_LVL DBG_INFO

#define USE_LOG1
#define USE_LOG2
#define USE_LOG3
// #define USE_LOG4
#define USE_LOG5
// #define USE_LOG6
// #define USE_LOG_D
#include "logn.h"

/* 串口接收消息结构 */
struct rx_msg
{
    rt_device_t dev;
    rt_size_t size;
};
/* 串口设备句柄 */
static rt_device_t serial;
/* 消息队列控制块 */
static struct rt_messagequeue rx_mq;

/* 接收数据回调函数 */
static rt_err_t uart_input(rt_device_t dev, rt_size_t size)
{
    struct rx_msg msg;
    rt_err_t result;
    msg.dev = dev;
    msg.size = size;

    result = rt_mq_send(&rx_mq, &msg, sizeof(msg));
    if (result == -RT_EFULL)
    {
        /* 消息队列满 */
        rt_kprintf("message queue full！\n");
    }
    return result;
}
void assist_control(char *rx_buffer)
{
    LOG3("assist_control CMD:%s",rx_buffer);
    if (rt_strstr(rx_buffer, "cc")!=RT_NULL||rt_strstr(rx_buffer, "3")!=RT_NULL)
    {
        fan_status=1;
        fan_on();
        rt_kprintf("加大抽风\n");
    }
    else if (rt_strstr(rx_buffer, "dd")!=RT_NULL||rt_strstr(rx_buffer, "4")!=RT_NULL)
    {
        fan_status=0;
        fan_off();
        rt_kprintf("关闭抽风\n");
    }
    else if (rt_strstr(rx_buffer, "ee")!=RT_NULL||rt_strstr(rx_buffer, "1")!=RT_NULL)
    {
        light_status=1;
        light_on();
        rt_kprintf("开灯\n");
    }
    else if (rt_strstr(rx_buffer, "ff")!=RT_NULL||rt_strstr(rx_buffer, "2")!=RT_NULL)
    {
        light_status=0;
        light_off();
        rt_kprintf("关灯\n");
    }
    else if (rt_strstr(rx_buffer, "bb")!=RT_NULL||rt_strstr(rx_buffer, "2")!=RT_NULL)
    {
        beep_on();
    }
}
static void serial_thread_entry(void *parameter)
{
    struct rx_msg msg;
    rt_err_t result;
    rt_uint32_t rx_length;
    static char rx_buffer[BSP_UART3_RX_BUFSIZE + 1];

    while (1)
    {
        rt_memset(&msg, 0, sizeof(msg));
        /* 从消息队列中读取消息 */
        result = rt_mq_recv(&rx_mq, &msg, sizeof(msg), RT_WAITING_FOREVER);
        if (result > 0)
        {
            /* 从串口读取数据 */
            rx_length = rt_device_read(msg.dev, 0, rx_buffer, msg.size);
            rx_buffer[rx_length] = '\0';
            assist_control(rx_buffer);
            /* 打印数据 */
            rt_kprintf("%s\n", rx_buffer);
        }
    }
}

void serial_send(char *str)
{
    rt_device_write(serial, 0, str, (sizeof(str) - 1));
}

int aiv_init(void)
{
    LOG5("VOICE assistant START");
    rt_err_t ret = RT_EOK;
    char uart_name[RT_NAME_MAX];
    static char msg_pool[256];
    char str[] = "hello RT-Thread!\r\n";

    rt_strcpy(uart_name, SAMPLE_UART_NAME);

    /* 查找串口设备 */
    serial = rt_device_find(uart_name);
    if (!serial)
    {
        rt_kprintf("find %s failed!\n", uart_name);
        return RT_ERROR;
    }

    /* 初始化消息队列 */
    rt_mq_init(&rx_mq, "rx_mq",
               msg_pool,              /* 存放消息的缓冲区 */
               sizeof(struct rx_msg), /* 一条消息的最大长度 */
               sizeof(msg_pool),      /* 存放消息的缓冲区大小 */
               RT_IPC_FLAG_FIFO);     /* 如果有多个线程等待，按照先来先得到的方法分配消息 */

    /* 以 DMA 接收及轮询发送方式打开串口设备 */
    rt_device_open(serial, RT_DEVICE_FLAG_RX_NON_BLOCKING | RT_DEVICE_FLAG_TX_BLOCKING);
    /* 设置接收回调函数 */
    rt_device_set_rx_indicate(serial, uart_input);
    /* 发送字符串 */
    // rt_device_write(serial, 0, str, (sizeof(str) - 1));

    /* 创建 serial 线程 */
    rt_thread_t thread = rt_thread_create("serial", serial_thread_entry, RT_NULL, 1024, 25, 10);
    /* 创建成功则启动线程 */
    if (thread != RT_NULL)
    {
        rt_thread_startup(thread);
    }
    else
    {
        ret = RT_ERROR;
    }

    return ret;
}
/* 导出到 msh 命令列表中 */
MSH_CMD_EXPORT(aiv_init, siri start);