//! This function reads the SETUP request sent to the default control endpoint
//! and calls the appropriate function. When exiting of the usb_read_request
//! function, the device is ready to manage the next request.
//!
//! If the received request is not supported or a non-standard USB request, the function
//! will call the custom decoding function in usb_specific_request module.
//!
//! @note List of supported requests:
//! GET_DESCRIPTOR
//! GET_CONFIGURATION
//! SET_ADDRESS
//! SET_CONFIGURATION
//! CLEAR_FEATURE
//! SET_FEATURE
//! GET_STATUS
//!
void usb_process_request(void)
{
U8 bRequest;
Usb_reset_endpoint_fifo_access(EP_CONTROL);
bmRequestType = Usb_read_endpoint_data(EP_CONTROL, 8);
bRequest = Usb_read_endpoint_data(EP_CONTROL, 8);
switch (bRequest)
{
case GET_DESCRIPTOR:
if (bmRequestType == 0x80) usb_get_descriptor();
else goto unsupported_request;
break;
case GET_CONFIGURATION:
if (bmRequestType == 0x80) usb_get_configuration();
else goto unsupported_request;
break;
case SET_ADDRESS:
if (bmRequestType == 0x00) usb_set_address();
else goto unsupported_request;
break;
case SET_CONFIGURATION:
if (bmRequestType == 0x00) usb_set_configuration();
else goto unsupported_request;
break;
case CLEAR_FEATURE:
if (bmRequestType <= 0x02) usb_clear_feature();
else goto unsupported_request;
break;
case SET_FEATURE:
if (bmRequestType <= 0x02) usb_set_feature();
else goto unsupported_request;
break;
case GET_STATUS:
if (0x7F < bmRequestType && bmRequestType <= 0x82) usb_get_status();
else goto unsupported_request;
break;
case GET_INTERFACE:
if (bmRequestType == 0x81)
{
if(!usb_get_interface())
{
Usb_enable_stall_handshake(EP_CONTROL);
Usb_ack_setup_received_free();
}
}
else goto unsupported_request;
break;
case SET_INTERFACE:
if (bmRequestType == 0x01) usb_set_interface();
else goto unsupported_request;
break;
case SET_DESCRIPTOR:
case SYNCH_FRAME:
default: //!< unsupported request => call to user read request
unsupported_request:
if (!usb_user_read_request(bmRequestType, bRequest))
{
Usb_enable_stall_handshake(EP_CONTROL);
Usb_ack_setup_received_free();
}
break;
}
}
//! usb_process_request.
//!
//! @brief This function reads the SETUP request sent to the default control endpoint
//! and calls the appropriate function. When exiting of the usb_read_request
//! function, the device is ready to manage the next request.
//!
//! @note list of supported requests:
//! GET_DESCRIPTOR
//! GET_CONFIGURATION
//! SET_ADDRESS
//! SET_CONFIGURATION
//! CLEAR_FEATURE
//! SET_FEATURE
//! GET_STATUS
//!
void usb_process_request(void)
{
U8 bmRequest;
bmRequestType = Usb_read_byte();
bmRequest = Usb_read_byte();
switch (bmRequest)
{
case GET_DESCRIPTOR:
if (0x80 == bmRequestType) { usb_get_descriptor(); }
else goto user_read;
break;
case GET_CONFIGURATION:
if (0x80 == bmRequestType) { usb_get_configuration(); }
else goto user_read;
break;
case SET_ADDRESS:
if (0x00 == bmRequestType) { usb_set_address(); }
else goto user_read;
break;
case SET_CONFIGURATION:
if (0x00 == bmRequestType) { usb_set_configuration(); }
else goto user_read;
break;
case CLEAR_FEATURE:
if (0x02 >= bmRequestType) { usb_clear_feature(); }
else goto user_read;
break;
case SET_FEATURE:
if (0x02 >= bmRequestType) { usb_set_feature(); }
else goto user_read;
break;
case GET_STATUS:
if ((0x7F < bmRequestType) & (0x82 >= bmRequestType))
{ usb_get_status(); }
else goto user_read;
break;
case GET_INTERFACE:
if (bmRequestType == 0x81) { usb_get_interface(); }
else goto user_read;
break;
case SET_INTERFACE:
if (bmRequestType == 0x01) {usb_set_interface();}
break;
case SET_DESCRIPTOR:
case SYNCH_FRAME:
default: //!< un-supported request => call to user read request
user_read:
usb_user_read_request(bmRequestType, bmRequest);
break;
}
Usb_select_endpoint(EP_CONTROL);
// If the receive setup flag hasn't been cleared
// by this point then we can assume that we didn't
// support this request and should stall.
if(Is_usb_receive_setup())
Usb_enable_stall_handshake();
// Clear some flags.
Usb_ack_receive_setup();
Usb_ack_receive_out();
Usb_ack_in_ready();
}
//! usb_process_request.
//!
//! @brief This function reads the SETUP request sent to the default control endpoint
//! and calls the appropriate function. When exiting of the usb_read_request
//! function, the device is ready to manage the next request.
//!
//! @param none
//!
//! @return none
//! @note list of supported requests:
//! GET_DESCRIPTOR
//! GET_CONFIGURATION
//! SET_ADDRESS
//! SET_CONFIGURATION
//! CLEAR_FEATURE
//! SET_FEATURE
//! GET_STATUS
//!
void usb_process_request(void)
{
U8 bmRequest;
bmRequestType = Usb_read_byte();
bmRequest = Usb_read_byte();
switch (bmRequest)
{
case GET_DESCRIPTOR:
if (0x80 == bmRequestType) { usb_get_descriptor(); }
else { usb_user_read_request(bmRequestType, bmRequest); }
break;
case GET_CONFIGURATION:
if (0x80 == bmRequestType) { usb_get_configuration(); }
else { usb_user_read_request(bmRequestType, bmRequest); }
break;
case SET_ADDRESS:
if (0x00 == bmRequestType) { usb_set_address(); }
else { usb_user_read_request(bmRequestType, bmRequest); }
break;
case SET_CONFIGURATION:
if (0x00 == bmRequestType) { usb_set_configuration(); }
else { usb_user_read_request(bmRequestType, bmRequest); }
break;
case CLEAR_FEATURE:
if (0x02 >= bmRequestType) { usb_clear_feature(); }
else { usb_user_read_request(bmRequestType, bmRequest); }
break;
case SET_FEATURE:
if (0x02 >= bmRequestType) { usb_set_feature(); }
else { usb_user_read_request(bmRequestType, bmRequest); }
break;
case GET_STATUS:
if ((0x7F < bmRequestType) & (0x82 >= bmRequestType))
{ usb_get_status(); }
else { usb_user_read_request(bmRequestType, bmRequest); }
break;
case GET_INTERFACE:
if (bmRequestType == 0x81) { usb_get_interface(); }
else { usb_user_read_request(bmRequestType, bmRequest); }
break;
case SET_INTERFACE:
if (bmRequestType == 0x01) {usb_set_interface();}
break;
case SET_DESCRIPTOR:
case SYNCH_FRAME:
default: //!< un-supported request => call to user read request
if(usb_user_read_request(bmRequestType, bmRequest) == FALSE)
{
Usb_enable_stall_handshake();
Usb_ack_receive_setup();
return;
}
break;
}
}
//! @brief This function reads the SETUP request sent to the default control endpoint
//! and calls the appropriate function. When exiting of the usb_read_request
//! function, the device is ready to manage the next request.
//!
void usb_process_request(void)
{
U8 bmRequestType;
U8 bmRequest;
Usb_ack_control_out();
bmRequestType = Usb_read_byte();
bmRequest = Usb_read_byte();
switch (bmRequest)
{
case SETUP_GET_DESCRIPTOR:
if (USB_SETUP_GET_STAND_DEVICE == bmRequestType)
{
if( usb_get_descriptor() )
return;
}
break;
case SETUP_GET_CONFIGURATION:
if (USB_SETUP_GET_STAND_DEVICE == bmRequestType)
{
usb_get_configuration();
return;
}
break;
case SETUP_SET_ADDRESS:
if (USB_SETUP_SET_STAND_DEVICE == bmRequestType)
{
usb_set_address();
return;
}
break;
case SETUP_SET_CONFIGURATION:
if (USB_SETUP_SET_STAND_DEVICE == bmRequestType)
{
if( usb_set_configuration() )
return;
}
break;
case SETUP_CLEAR_FEATURE:
if (usb_clear_feature(bmRequestType))
return;
break;
case SETUP_SET_FEATURE:
if (usb_set_feature(bmRequestType))
return;
break;
case SETUP_GET_STATUS:
if (usb_get_status(bmRequestType))
return;
break;
case SETUP_GET_INTERFACE:
if (USB_SETUP_GET_STAND_INTERFACE == bmRequestType)
{
if( usb_get_interface() )
return;
}
break;
case SETUP_SET_INTERFACE:
if (bmRequestType == USB_SETUP_SET_STAND_INTERFACE)
{
if( usb_set_interface() )
return;
}
break;
default:
break;
}
// un-supported like standard request => call to user read request
if( !usb_user_read_request(bmRequestType, bmRequest) )
{
// Request unknow in the specific request list from interface
// keep that order (set StallRq/clear RxSetup) or a
// OUT request following the SETUP may be acknowledged
Usb_enable_stall_handshake();
Usb_ack_receive_setup();
endpoint_status[(EP_CONTROL & MSK_EP_DIR)] = 0x01;
}
}
