/**************************************************************************//**
\brief Mass storage device request handler.
\param[in]
data - pointer to host's request.
******************************************************************************/
void msdRequestHandler(uint8_t *data)
{
UsbMscRequest_t *pRequest = NULL;
pRequest = (UsbMscRequest_t *)data;
if (NULL == pRequest)
return;
// Check request code
switch (pRequest->request.bRequest)
{
case BULK_ONLY_MASS_STORAGE_RESET:
break;
case GET_MAX_LUN:
HAL_Stall(0);
break;
default:
HAL_Stall(0);
break;
}
}
/******************************************************************************
runtime get descriptor command handler
Parameters:
type - type of the requested descriptor
index - index of the requested descriptor
length - maximum number of bytes to return
******************************************************************************/
void runtimeGetDescriptorHandler(uint8_t type, uint8_t index, uint16_t length)
{
(void)index;
// Check the descriptor type
switch (type)
{
case DESCRIPTOR_TYPE_DEVICE:
// Adjust length and send descriptor
if (length > deviceDescr.bLength)
length = deviceDescr.bLength;
HAL_UsbWrite(0, (void *)&deviceDescr, length, 0, 0);
break;
case DESCRIPTOR_TYPE_CONFIGURATION:
// Adjust length and send descriptor
if (length > usbConfigDescr.config.wTotalLength)
length = usbConfigDescr.config.wTotalLength;
HAL_UsbWrite(0, (void *)&usbConfigDescr, length, 0, 0);
break;
case DESCRIPTOR_TYPE_INTERFACE:
HAL_Stall(0);
break;
case DESCRIPTOR_TYPE_DEVICE_QUALIFIER:
HAL_Stall(0);
break;
case DESCRIPTOR_TYPE_OTHER_SPEED_CFG:
HAL_Stall(0);
break;
case DESCRIPTOR_TYPE_ENDPOINT:
HAL_Stall(0);
break;
case DESCRIPTOR_TYPE_STRING:
if (SERIAL_NUMBER_STRING_INDEX == index)
{
if (length > serialNumberStringDescr.bLength)
length = serialNumberStringDescr.bLength;
HAL_UsbWrite(0, (void *)&serialNumberStringDescr, length, 0, 0);
}
//When string descriptor(s) presents, host also asks for string descriptor that describes used language.
else if (LANG_ID_STRING_INDEX == index)
{
if (length > serialNumberStringDescr.bLength)
length = langStringDescr.bLength;
HAL_UsbWrite(0, (void *)&langStringDescr, length, 0, 0);
}
else
HAL_Stall(0);
break;
default:
HAL_Stall(0);
break;
}
}
/******************************************************************************
Usb setup process request handler
Parameters:
data - pointer to host's request
******************************************************************************/
void setupProcessRequestHandler(uint8_t *data)
{
UsbRequest_t *pRequest = NULL;
pRequest = (UsbRequest_t *)data;
if (NULL == pRequest)
return;
switch (pRequest->wIndex)
{
#if (APP_INTERFACE == APP_INTERFACE_VCP)
case NUMBER_OF_FIRST_INTERFACE:
vcpRequestHandler(data);
break;
#endif // (APP_INTERFACE == APP_INTERFACE_VCP)
/* MSC commands */
#if (MSD_SUPPORT == 1)
#if (APP_INTERFACE == APP_INTERFACE_VCP)
case NUMBER_OF_THIRD_INTERFACE:
#else
case NUMBER_OF_FIRST_INTERFACE:
#endif
msdRequestHandler(data);
break;
#endif // (MSD_SUPPORT == 1)
#if (DFU_SUPPORT == 1)
#if (APP_INTERFACE == APP_INTERFACE_VCP)
#if (MSD_SUPPORT == 1)
case NUMBER_OF_FOURTH_INTERFACE:
#else
case NUMBER_OF_THIRD_INTERFACE:
#endif
#else
case NUMBER_OF_SECOND_INTERFACE:
#endif // (APP_INTERFACE == APP_INTERFACE_VCP)
dfuRequestHandler(data);
break;
#endif // (DFU_SUPPORT == 1)
default:
HAL_Stall(0);
break;
}
}
