#include "system/includes.h"
#include "asm/uart_dev.h"
#include "system/event.h"

#if 1


static uart_bus_t *uart_bus0;
static u8 uart_cbuf0[256] __attribute__((aligned(4)));
static u8 uart_rxbuf0[256] __attribute__((aligned(4)));

extern void usr_uart_data_recieve(u8* data,u16 len);
void usr_uart_send_cmd(u8* data,u16 len)
{
    //if(uart_bus0)uart_bus0->write(data,len);
}


static void uart_u_task0(void *arg)
{
    int ret;
    u32 uart_rxcnt0 = 0;
    printf("uart_u_task start\n");
    while (1) {
        //uart_bus0->read()在尚未收到串口数据时会pend信号量，挂起task，直到UART_RX_PND或UART_RX_OT_PND中断发生，post信号量，唤醒task
        uart_rxcnt0 = uart_bus0->read(uart_rxbuf0, sizeof(uart_rxbuf0), 0);
        if (uart_rxcnt0)
        {
            //printf("uart_rx = ");
            //printf_buf(uart_rxbuf,uart_rxcnt0);
            //usr_uart_send_cmd(uart_rxbuf,uart_rxcnt0);
            usr_uart_data_recieve(uart_rxbuf0,uart_rxcnt0);
        }
    }
}

static void uart_isr_hook0(void *arg, u32 status)
{
    //当CONFIG_UARTx_ENABLE_TX_DMA（x = 0, 1）为1时，不要在中断里面调用ubus->write()，因为中断不能pend信号量
    if (status == UT_RX) {
      //  printf("uart_rx_isr\n");
    }
    if (status == UT_RX_OT) {
     //   printf("uart_rx_ot_isr\n");
    }
}
void uart_dev_main_init0()
{
    struct uart_platform_data_t u_arg = {0};
    u_arg.tx_pin = IO_PORTB_06;
    u_arg.rx_pin = IO_PORTB_07;
    u_arg.rx_cbuf = uart_cbuf0;
    u_arg.rx_cbuf_size = 256;
    u_arg.frame_length = 256;
    u_arg.rx_timeout = 100;
    u_arg.isr_cbfun = uart_isr_hook0;
    u_arg.baud = 9600;
    u_arg.is_9bit = 0;

    uart_bus0 = uart_dev_open(&u_arg);
    if (uart_bus0 != NULL)
    {
        printf("uart_dev_open2() success\n");
        os_task_create(uart_u_task0, (void *)uart_bus0, 31, 2048, 0, "uart_cmd_task");
    }
   // usr_uart_send_cmd(' ',1);
}

#endif