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/**
******************************************************************************
* @file Audio/Audio_playback_and_record/Src/explorer.c
* @author MCD Application Team
* @brief This file provides USB Key drive configuration
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Private typedef -----------------------------------------------------------*/
extern FATFS USBH_FatFs;
char USBKey_Path[4] = "0:/";
FILELIST_FileTypeDef FileList;
uint16_t NumObs = 0;
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/**
* @brief Initializes the USB KEY Storage.
* @param None
* @retval Status
*/
uint8_t AUDIO_StorageInit(void)
{
/* Link the USB Key disk I/O driver */
if(( f_mount(&USBH_FatFs, (TCHAR const*)USBKey_Path, 0) != FR_OK))
{
/* FatFs Initialization Error */
LCD_ErrLog("Cannot Initialize FatFs! \n");
return 1;
}
else
{
LCD_DbgLog ("INFO : FatFs Initialized! \n");
return 0;
}
}
/**
* @brief Copies disk content in the explorer list.
* @param None
* @retval Operation result
*/
FRESULT AUDIO_StorageParse(void)
{
FRESULT res = FR_OK;
FILINFO fno;
DIR dir;
char *fn;
res = f_opendir(&dir, USBKey_Path);
FileList.ptr = 0;
if(res == FR_OK)
{
while(USBH_MSC_IsReady(&hUSBHost))
{
res = f_readdir(&dir, &fno);
if(res != FR_OK || fno.fname[0] == 0)
{
break;
}
if(fno.fname[0] == '.')
{
continue;
}
fn = fno.fname;
if(FileList.ptr < FILEMGR_LIST_DEPDTH)
{
if((fno.fattrib & AM_DIR) == 0)
{
if((strstr(fn, "wav")) || (strstr(fn, "WAV")))
{
strncpy((char *)FileList.file[FileList.ptr].name, (char *)fn, FILEMGR_FILE_NAME_SIZE);
FileList.file[FileList.ptr].type = FILETYPE_FILE;
FileList.ptr++;
}
}
}
}
}
NumObs = FileList.ptr;
f_closedir(&dir);
return res;
}
/**
* @brief Shows audio file (*.wav) on the root
* @param None
* @retval None
*/
uint8_t AUDIO_ShowWavFiles(void)
{
uint8_t i = 0;
uint8_t line_idx = 0;
if(AUDIO_StorageInit() == FR_OK)
{
if(AUDIO_StorageParse() == FR_OK)
{
if(FileList.ptr > 0)
{
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
LCD_UsrLog("audio file(s) [ROOT]:\n\n");
for(i = 0; i < FileList.ptr; i++)
{
line_idx++;
if(line_idx > 9)
{
line_idx = 0;
LCD_UsrLog("> Press [Key] To Continue.\n");
/* KEY Button in polling */
while(BSP_PB_GetState(BUTTON_KEY) != RESET)
{
/* Wait for User Input */
}
}
LCD_DbgLog(" |__");
LCD_DbgLog((char *)FileList.file[i].name);
LCD_DbgLog("\n");
}
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
LCD_UsrLog("\nEnd of files list.\n");
return 0;
}
return 1;
}
return 2;
}
else
{
return 3;
}
}
/**
* @brief Gets Wav Object Number.
* @param None
* @retval None
*/
uint16_t AUDIO_GetWavObjectNumber(void)
{
return NumObs;
}