#include "w5500_init.h"

// W5500 Network Configuration
wiz_NetInfo gWIZNETINFO = {
    .mac = {0x00, 0x08, 0xDC, 0x12, 0x34, 0x56}, // MAC 地址
    .ip = {169, 254, 1, 11},                     // IP 地址
    .sn = {255, 255, 255, 0},                     // 子网掩码
    .gw = {169, 254, 1, 1},                       // 网关地址
    .dns = {8, 8, 8, 8},                          // DNS 服务器
    .dhcp = NETINFO_STATIC                        // 静态IP模式
};

// W5500 SPI 读写函数
static void W5500_Select(void) {
    HAL_GPIO_WritePin(NET_CS_GPIO_Port, NET_CS_Pin, GPIO_PIN_RESET);
}

static void W5500_Deselect(void) {
        HAL_GPIO_WritePin(NET_CS_GPIO_Port, NET_CS_Pin, GPIO_PIN_SET);
}

static void W5500_ReadBuff(uint8_t* buff, uint16_t len) {
    HAL_SPI_Receive(&hspi2, buff, len, HAL_MAX_DELAY);
}

static void W5500_WriteBuff(uint8_t* buff, uint16_t len) {
    HAL_SPI_Transmit(&hspi2, buff, len, HAL_MAX_DELAY);
}

static uint8_t W5500_ReadByte(void) {
    uint8_t byte;
    W5500_ReadBuff(&byte, 1);
    return byte;
}

static void W5500_WriteByte(uint8_t byte) {
    W5500_WriteBuff(&byte, 1);
}

int8_t W5500_Init(void)
{
    // 1. 注册通信函数
    reg_wizchip_cs_cbfunc(W5500_Select, W5500_Deselect);
    reg_wizchip_spi_cbfunc(W5500_ReadByte, W5500_WriteByte);
    reg_wizchip_spiburst_cbfunc(W5500_ReadBuff, W5500_WriteBuff);

    // 2. 初始化缓冲区大小
    uint8_t rx_tx_buff_sizes[] = {2, 2, 2, 2, 2, 2, 2, 2}; // 每个Socket分配2K缓存
    if(wizchip_init(rx_tx_buff_sizes, rx_tx_buff_sizes) < 0) {
        return -1;
    }

    // 3. 配置网络参数
    wizchip_setnetinfo(&gWIZNETINFO);

    // 4. PHY 配置
    wiz_PhyConf phyconf;
    phyconf.by = PHY_CONFBY_SW;
    phyconf.mode = PHY_MODE_AUTONEGO;
    phyconf.speed = PHY_SPEED_100;
    phyconf.duplex = PHY_DUPLEX_FULL;
    wizphy_setphyconf(&phyconf);

    // 5. 等待PHY就绪
    uint32_t tick = HAL_GetTick();
    while(1) {
        if(wizphy_getphylink() == PHY_LINK_ON) break;
        if(HAL_GetTick() - tick > 5000) { // 5秒超时
            return -1;
        }
    }
    
    return 0;
}