/**
* @brief CDC data transmit callback.
* @param phost: Host handle
* @retval None
*/
void USBH_CDC_TransmitCallback(USBH_HandleTypeDef *phost)
{
uint32_t bytesread;
if(use_file == 1)
{
if( MyFile.fptr >= MyFile.fsize)
{
f_close(&MyFile);
LCD_DbgLog (">> File sent\n" );
use_file = 0;
}
else
{
/* Fill the buffer to Send */
f_read(&MyFile, CDC_TX_Buffer, TX_BUFF_SIZE, (void *)&bytesread);
/* Send File */
USBH_CDC_Transmit(&hUSBHost, CDC_TX_Buffer, bytesread);
}
}
else
{
LCD_DbgLog (">> Data sent\n" );
}
}
/**
* @brief Sends file to the root.
* @param fileidx: File index
* @retval None
*/
static void CDC_SendFile(uint8_t fileidx)
{
uint32_t bytesread;
if(FileList.ptr > 0)
{
/* Close any opened file */
f_close(&MyFile);
if(f_open(&MyFile, (char *)FileList.file[fileidx].name, FA_OPEN_EXISTING | FA_READ) == FR_OK)
{
/* Fill the buffer to Send */
f_read(&MyFile, CDC_TX_Buffer, TX_BUFF_SIZE, (void *)&bytesread);
/* Send File */
USBH_CDC_Transmit(&hUSBHost, CDC_TX_Buffer, bytesread);
}
else
{
LCD_ErrLog("Cannot open %s file\n", FileList.file[0].name);
}
}
else
{
LCD_ErrLog("No file on the microSD\n");
}
}
/**
* @brief Handles CDC Send Menu.
* @param None
* @retval None
*/
void CDC_Handle_Send_Menu(void)
{
switch(CdcDemo.Send_state)
{
case CDC_SEND_IDLE:
CdcDemo.Send_state = CDC_SEND_WAIT;
CDC_SendState = 0;
USBH_CDC_Stop(&hUSBHost);
memset(CDC_TX_Buffer, 0x5A, TX_BUFF_SIZE);
LCD_LOG_ClearTextZone();
LCD_DbgLog("Sending data ...\n");
USBH_CDC_Transmit(&hUSBHost, CDC_TX_Buffer, TX_BUFF_SIZE);
break;
case CDC_SEND_WAIT:
if(CDC_SendState == 1) /* Data sent */
{
BSP_LCD_ClearStringLine(19);
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAtLine(19, (uint8_t *)"Press User button to start receiving data ");
/* Wait for User Input */
while((BSP_PB_GetState(BUTTON_KEY) != SET) && (Appli_state != APPLICATION_DISCONNECT))
{
}
HAL_Delay(400);
CdcDemo.state = CDC_DEMO_RECEIVE;
CdcDemo.Send_state = CDC_SEND_IDLE;
}
break;
default:
break;
}
}
/**
* @brief Handles CDC Send Menu.
* @param None
* @retval None
*/
void CDC_Handle_Send_Menu(void)
{
if(CdcSelectMode == CDC_SELECT_MENU)
{
switch(CdcDemo.Send_state)
{
case CDC_SEND_IDLE:
CdcDemo.Send_state = CDC_SEND_WAIT;
CDC_SelectItem (DEMO_SEND_menu, 0);
CdcDemo.select = 0;
PrevPos = 0;
USBH_CDC_Stop(&hUSBHost);
break;
case CDC_SEND_WAIT:
if(CdcDemo.select != PrevSelect)
{
PrevSelect = CdcDemo.select;
CDC_SelectItem (DEMO_SEND_menu, CdcDemo.select & 0x7F);
/* Handle select item */
if(CdcDemo.select & 0x80)
{
switch(CdcDemo.select & 0x7F)
{
case 0:
memset(CDC_TX_Buffer, 0x5A, TX_BUFF_SIZE);
LCD_DbgLog("Sending data ...\n");
USBH_CDC_Transmit(&hUSBHost, CDC_TX_Buffer, TX_BUFF_SIZE);
use_file = 0;
break;
case 1:
if(FileList.ptr > 0)
{
SendFileMenu_Init();
if(FilePos >= 9)
{
CDC_ShowFiles(FileOffset, 9);
}
else
{
CDC_ShowFiles(FileOffset, FilePos);
}
CdcDemo.Send_state = CDC_SEND_SELECT_FILE;
}
else
{
LCD_ErrLog("No file on the microSD\n");
}
break;
case 2: /* Return */
ReturnFromSendMenu();
break;
default:
break;
}
}
}
break;
default:
break;
}
}
else if(CdcSelectMode == CDC_SELECT_FILE)
{
switch(CdcDemo.Send_state)
{
case CDC_SEND_SELECT_FILE:
if(CdcDemo.select & 0x80)
{
CdcDemo.select &= 0x7F;
CdcDemo.Send_state = CDC_SEND_TRANSMIT_FILE;
}
break;
case CDC_SEND_TRANSMIT_FILE:
LCD_DbgLog("Sending file ...\n");
use_file = 1;
CDC_SendFile(FilePos);
CDC_ChangeSelectMode(CDC_SELECT_MENU);
LCD_LOG_UpdateDisplay();
CdcDemo.Send_state = CDC_SEND_WAIT;
break;
default:
break;
}
if(FilePos != PrevPos)
{
if(((FilePos > 9)&&(FilePos > PrevPos)) ||
((FilePos >= 9)&&(FilePos < PrevPos)))
{
if(FilePos > PrevPos)
{
FileOffset++;
}
else
{
FileOffset--;
}
CDC_ShowFiles(FileOffset, 9);
}
else
{
CDC_ShowFiles(0, FilePos);
}
PrevPos = FilePos;
}
}
CdcDemo.select &= 0x7F;
}