/**
* @brief MSC class application
* @param None
* @retval None
*/
static void MSC_Application(void)
{
switch(USBH_USR_ApplicationState)
{
case USH_USR_FS_INIT:
/* Register work area for logical drives */
if (f_mount(&USBDISK_FatFs, "", 0) != FR_OK)
{
LCD_ErrLog("> File System NOT initialized.\n");
Error_Handler();
}
else
{
LCD_UsrLog("> File System initialized.\n");
USBH_USR_ApplicationState = USH_USR_FS_READLIST;
}
break;
case USH_USR_FS_READLIST:
LCD_UsrLog("> Exploring disk flash ...\n");
if (Explore_Disk("0:/", 1) != FR_OK)
{
LCD_ErrLog("> File cannot be explored.\n");
Error_Handler();
}
else
{
line_idx = 0;
USBH_USR_ApplicationState = USH_USR_FS_DRAW;
LCD_UsrLog("To start Image Slideshow\n");
LCD_UsrLog("Press Key\n");
while(BSP_PB_GetState (BUTTON_KEY) != SET)
{
Toggle_Leds();
}
}
break;
case USH_USR_FS_DRAW:
/* USER Button in polling */
while(BSP_PB_GetState (BUTTON_KEY) != RESET)
{
Toggle_Leds();
}
while(Appli_state == APPLICATION_START)
{
Image_Browser("0:/");
return;
}
break;
default:
break;
}
return;
}
/**
* @brief USBH_USR_MSC_Application
* Demo application for mass storage
* @param None
* @retval Staus
*/
int USBH_USR_MSC_Application(void)
{
FRESULT res;
uint8_t writeTextBuff[] = "STM32 Connectivity line Host Demo application using FAT_FS ";
uint16_t bytesWritten, bytesToWrite;
switch(USBH_USR_ApplicationState)
{
case USH_USR_FS_INIT:
/* Initialises the File System*/
if ( f_mount( 0, &fatfs ) != FR_OK ) {
/* efs initialisation fails*/
LCD_ErrLog("> Cannot initialize File System.\n");
return(-1);
}
LCD_UsrLog("> File System initialized.\n");
LCD_UsrLog("> Disk capacity : %d Bytes\n", USBH_MSC_Param.MSCapacity * \
USBH_MSC_Param.MSPageLength);
if(USBH_MSC_Param.MSWriteProtect == DISK_WRITE_PROTECTED) {
LCD_ErrLog((void *)MSG_WR_PROTECT);
}
USBH_USR_ApplicationState = USH_USR_FS_READLIST;
break;
case USH_USR_FS_READLIST:
LCD_UsrLog((void *)MSG_ROOT_CONT);
Explore_Disk("0:/", 1);
line_idx = 0;
USBH_USR_ApplicationState = USH_USR_FS_WRITEFILE;
break;
case USH_USR_FS_WRITEFILE:
LCD_SetTextColor(Green);
LCD_DisplayStringLine( LCD_PIXEL_HEIGHT - 42, " ");
LCD_DisplayStringLine( LCD_PIXEL_HEIGHT - 30, "Press Key to write file");
LCD_SetTextColor(LCD_LOG_DEFAULT_COLOR);
USB_OTG_BSP_mDelay(100);
/*Key B3 in polling*/
while((HCD_IsDeviceConnected(&USB_OTG_Core)) && \
(STM_EVAL_PBGetState (BUTTON_USER) == RESET))
{
Toggle_Leds();
}
/* Writes a text file, STM32.TXT in the disk*/
LCD_UsrLog("> Writing File to disk flash ...\n");
if (USBH_MSC_Param.MSWriteProtect == DISK_WRITE_PROTECTED) {
LCD_ErrLog ( "> Disk flash is write protected \n");
USBH_USR_ApplicationState = USH_USR_FS_DRAW;
break;
}
/* Register work area for logical drives */
f_mount(0, &fatfs);
if (f_open(&file, "0:STM32.TXT",FA_CREATE_ALWAYS | FA_WRITE) == FR_OK) {
/* Write buffer to file */
bytesToWrite = sizeof(writeTextBuff);
res= f_write (&file, writeTextBuff, bytesToWrite, (void *)&bytesWritten);
if((bytesWritten == 0) || (res != FR_OK)) /*EOF or Error*/ {
LCD_ErrLog("> STM32.TXT CANNOT be writen.\n");
} else {
LCD_UsrLog("> 'STM32.TXT' file created\n");
}
/*close file and filesystem*/
f_close(&file);
f_mount(0, NULL);
} else {
LCD_UsrLog ("> STM32.TXT created in the disk\n");
}
USBH_USR_ApplicationState = USH_USR_FS_DRAW;
LCD_SetTextColor(Green);
LCD_DisplayStringLine( LCD_PIXEL_HEIGHT - 42, " ");
LCD_DisplayStringLine( LCD_PIXEL_HEIGHT - 30, "To start Image slide show Press Key.");
LCD_SetTextColor(LCD_LOG_DEFAULT_COLOR);
break;
case USH_USR_FS_DRAW:
/*Key B3 in polling*/
while((HCD_IsDeviceConnected(&USB_OTG_Core)) && \
(STM_EVAL_PBGetState (BUTTON_USER) == RESET))
{
Toggle_Leds();
}
while(HCD_IsDeviceConnected(&USB_OTG_Core))
{
if ( f_mount( 0, &fatfs ) != FR_OK ) {
/* fat_fs initialisation fails*/
return(-1);
}
return Image_Browser("0:/");
}
break;
default: break;
}
return(0);
}
