#include <rtthread.h>
#include <board.h>
#include <rtdevice.h>
#include "drv_spi.h"
#include "spi_flash_sfud.h"
#include <dfs_posix.h> 

#define W25Q64_SPI_DEVICE_NAME "W25Q64"

static int rt_hw_spi_flash_init(void)
{
HAL_PIN_Set(PAD_PA24, SPI1_DIO, PIN_PULLDOWN, 1);       // SPI1 (Nor flash)
    HAL_PIN_Set(PAD_PA25, SPI1_DI,  PIN_PULLUP, 1);
    HAL_PIN_Set(PAD_PA28, SPI1_CLK, PIN_NOPULL, 1);
    HAL_PIN_Set(PAD_PA29, SPI1_CS,  PIN_NOPULL, 1);

    rt_hw_spi_device_attach("spi1", W25Q64_SPI_DEVICE_NAME);

//注意此处w25q64如果读取失败，可能是因为时钟频率设置过高导致的,原本为50MHz，改为20MHz
    if (RT_NULL == rt_sfud_flash_probe("W25Q64", W25Q64_SPI_DEVICE_NAME))  //注册块设备，这一步可以将外部flash抽象为系统的块设备
    {
        return -RT_ERROR;
    };
 
    return RT_EOK;
}
/* 导出到自动初始化 */
INIT_COMPONENT_EXPORT(rt_hw_spi_flash_init);

//文件系统挂载
int mnt_init(void)
{
    if (dfs_mount("W25Q64", "/", "elm", 0, 0) == 0)  // "W25Q64":挂载的设备名称，"/":挂载路径，这里挂载到跟目录下
    {
        rt_kprintf("W25Q64 mount successful! \n");
    }
    else
    {
        dfs_mkfs("elm", "W25Q64");  // 如果是第一次挂载文件系统必须要先格式化
        if(dfs_mount("W25Q64", "/", "elm", 0, 0) != 0)
        {
            rt_kprintf("W25Q64 mount failed! \n");
        }
        else
        {
            rt_kprintf("W25Q64 mount successful! \n");
        }
    }

    return 0;
}
INIT_ENV_EXPORT(mnt_init);