/*
 * esp8266.c
 *
 *  Created on: 2025年10月18日
 *      Author: LHYe200
 */


#include "esp8266.h"
#include "zf_driver_uart.h"
#include "zf_common_fifo.h"
#include "zf_driver_gpio.h"
#include "zf_driver_delay.h"
#include "status_led.h"

const uint8 ESP8266_syncPkt[44] = {0x00, 0x08, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x07, 0x12, 0x20, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55};
static uint8 syncPkt_index = 0;
static uint8 esp8266_quit_download_judge_buffer[2] = {0};
static uint8 esp8266_quit_download_judge_index = 0;
static uint8 esp8266_quit_download_judge_flag = 0;
static uint8 esp8266_init_flag = 0;
uint8 esp8266_download_passthrough = 0;
static uint8 esp8266_download_rst_flag = 0;

// static uint16 esp8266_uart_pass_tx_buff_index = 0;
// static uint16 esp8266_uart_pass_rx_buff_index = 0;


void isr_uart0_rx_interrupt_hook_back(uint8 rev_data);

// // fifo_struct esp8266_rx_fifo;
// #define EU_BUFFER_SIZE 1024
// uint8 esp8266_rx_buffer[EU_BUFFER_SIZE];

// // fifo_struct esp8266_tx_fifo;
// uint8 esp8266_tx_buffer[EU_BUFFER_SIZE];

void ESP8266_Init(void)
{
    uart_init(ESP8266_UART_CHANNEL, ESP8266_UART_BAUDRATE, ESP8266_UART_TX_PIN, ESP8266_UART_RX_PIN);
    uart_rx_interrupt(ESP8266_UART_CHANNEL, 1);
//    fifo_init(&esp8266_rx_fifo, FIFO_DATA_8BIT, esp8266_rx_buffer, sizeof(esp8266_rx_buffer));
    gpio_init(ESP8266_EN, GPO, 1, GPO_PUSH_PULL);
    gpio_init(ESP8266_RST, GPO, 1, GPO_PUSH_PULL);
    gpio_init(ESP8266_IO0, GPO, 1, GPO_PUSH_PULL);
    gpio_init(ESP8266_IO2, GPO, 1, GPO_PUSH_PULL);
    gpio_init(ESP8266_IO15, GPO, 0, GPO_PUSH_PULL);

    esp8266_init_flag = 1;
}

void ESP8266_send_data(uint8 *data, uint32 len)
{
    if(esp8266_download_passthrough)
    {
        return;
    }
    uart_write_buffer(ESP8266_UART_CHANNEL, data, len);
}

void ESP8266_Main_Loop_Change_Mode(void)
{
    if(esp8266_quit_download_judge_flag >= 4)
    {
        esp8266_download_passthrough = 0;
        esp8266_quit_download_judge_flag = 0;
        esp8266_download_rst_flag = 0;
        gpio_set_level(ESP8266_IO0, 1);
        gpio_set_level(ESP8266_IO2, 1);
        gpio_set_level(ESP8266_IO15, 0);
        gpio_set_level(ESP8266_EN, 0);
        // gpio_set_level(ESP8266_RST, 0);
        system_delay_ms(1);
        // gpio_set_level(ESP8266_RST, 1);
        gpio_set_level(ESP8266_EN, 1);
        OFF_LED(STATUS_LED_9);
    }
    if(esp8266_download_rst_flag >=3 && !esp8266_download_passthrough)
    {
        system_delay_ms(1);
        // gpio_set_level(ESP8266_RST, 1);
        gpio_set_level(ESP8266_EN, 1);
        esp8266_download_passthrough = 1;
        esp8266_download_rst_flag = 0;
        ON_LED(STATUS_LED_2);
        ON_LED(STATUS_LED_9);
    }
}

void ESP8266_Judge_Quit_Download_Mode(uint8 rev_data)
{
    if(esp8266_download_passthrough && !esp8266_quit_download_judge_flag)
    {
        
        if(rev_data == 0xC0 && esp8266_quit_download_judge_buffer[0] != 0xC0)
        {
            esp8266_quit_download_judge_index = 0;
        }
        esp8266_quit_download_judge_buffer[esp8266_quit_download_judge_index++] = rev_data;
        if(esp8266_quit_download_judge_index >= 2 && esp8266_quit_download_judge_buffer[1] == 0x04)
        {
            esp8266_quit_download_judge_index = 0;
            esp8266_quit_download_judge_flag = 1;
            ON_LED(STATUS_LED_6);
        }
    }
    if(esp8266_quit_download_judge_flag == 1 && rev_data == 0xC0)
    {
        esp8266_quit_download_judge_flag = 2;
        ON_LED(STATUS_LED_7);
    }
}

void ESP8266_Auto_Download_Uart_Hook(void)
{
    uint8 rev_tmp;
    while(uart_query_byte(UART_0, &rev_tmp))
    {
        if((rev_tmp == ESP8266_syncPkt[syncPkt_index]) && (esp8266_download_passthrough == 0) && esp8266_init_flag)
        {
            Flash_LED(STATUS_LED_3);
            syncPkt_index++;
            if(syncPkt_index >= 44)
            {
                // if(!esp8266_download_rst_flag)
                // {
                    gpio_set_level(ESP8266_IO0, 0);
                    gpio_set_level(ESP8266_IO2, 1);
                    gpio_set_level(ESP8266_IO15, 0);
                    // gpio_set_level(ESP8266_RST, 0);
                    gpio_set_level(ESP8266_EN, 0);
                    esp8266_download_rst_flag++;
                    ON_LED(STATUS_LED_1);
                // }
                // else
                // {
                //     gpio_set_level(ESP8266_RST, 1);
                //     esp8266_download_passthrough = 1;
                //     ON_LED(STATUS_LED_2);
                // }
                syncPkt_index = 0;
            }
        }
        else
        {
            syncPkt_index = 0;
        }
        if(esp8266_download_passthrough == 0)
        {
            isr_uart0_rx_interrupt_hook_back(rev_tmp);
        }
        else
        {
            // esp8266_tx_buffer[esp8266_uart_pass_tx_buff_index++] = rev_tmp;
            // if(esp8266_uart_pass_tx_buff_index >= EU_BUFFER_SIZE)
            // {
            //     uart_write_buffer(ESP8266_UART_CHANNEL, esp8266_tx_buffer, esp8266_uart_pass_tx_buff_index);
            //     esp8266_uart_pass_tx_buff_index = 0;
            // }
            // if(rev_tmp == 0xC0)
            // {
            //     uart_write_buffer(ESP8266_UART_CHANNEL, esp8266_tx_buffer, esp8266_uart_pass_tx_buff_index);
            //     esp8266_uart_pass_tx_buff_index = 0;
            // }
            uart_write_byte(ESP8266_UART_CHANNEL, rev_tmp);
            // ON_LED(STATUS_LED_3);
            // ESP8266_Judge_Quit_Download_Mode(rev_tmp);
        }
    }
}

void ESP8266_Uart_Callback(void)
{
    uint8 rev_tmp;
    // ON_LED(STATUS_LED_4);
    while(uart_query_byte(ESP8266_UART_CHANNEL, &rev_tmp))
    {
        if(esp8266_download_passthrough)
        {
            // esp8266_rx_buffer[esp8266_uart_pass_rx_buff_index++] = rev_tmp;
            // if(esp8266_uart_pass_rx_buff_index >= EU_BUFFER_SIZE)
            // {
            //     uart_write_buffer(UART_0, esp8266_rx_buffer, esp8266_uart_pass_rx_buff_index);
            //     esp8266_uart_pass_rx_buff_index = 0;
            // }
            // if(rev_tmp == 0xC0)
            // {
            //     uart_write_buffer(UART_0, esp8266_rx_buffer, esp8266_uart_pass_rx_buff_index);
            //     esp8266_uart_pass_rx_buff_index = 0;
            // }
            uart_write_byte(UART_0, rev_tmp);
            // Flash_LED(STATUS_LED_5);
            if(esp8266_quit_download_judge_flag >= 2)
            {
                if(rev_tmp == 0xC0)
                {
                    ON_LED(STATUS_LED_8);
                    esp8266_quit_download_judge_flag ++;
                }
            }
        }
        else
        {
            // 处理其他数据
            isr_uart0_rx_interrupt_hook_back(rev_tmp);
        }
    }
}