/*
LUFA Library
- Copyright (C) Dean Camera, 2012.
+ Copyright (C) Dean Camera, 2013.
dean [at] fourwalledcubicle [dot] com
www.lufa-lib.org
*/
/*
- Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+ Copyright 2013 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
advertising or publicity pertaining to distribution of the
software without specific, written prior permission.
- The author disclaim all warranties with regard to this
+ The author disclaims all warranties with regard to this
software, including all implied warranties of merchantability
and fitness. In no event shall the author be liable for any
special, indirect or consequential damages or any damages
uint8_t USB_Host_ConfigurationNumber;
-uint8_t USB_Host_SendControlRequest(void* const BufferPtr)
+static uint8_t USB_Host_SendControlRequest_PRV(void* const BufferPtr)
{
uint8_t* DataStream = (uint8_t*)BufferPtr;
- bool BusSuspended = USB_Host_IsBusSuspended();
uint8_t ReturnStatus = HOST_SENDCONTROL_Successful;
uint16_t DataLen = USB_ControlRequest.wLength;
USB_Host_ResumeBus();
if ((ReturnStatus = USB_Host_WaitMS(1)) != HOST_WAITERROR_Successful)
- goto End_Of_Control_Send;
+ return ReturnStatus;
Pipe_SetPipeToken(PIPE_TOKEN_SETUP);
Pipe_ClearError();
Pipe_ClearSETUP();
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_SetupSent)) != HOST_SENDCONTROL_Successful)
- goto End_Of_Control_Send;
+ return ReturnStatus;
Pipe_Freeze();
if ((ReturnStatus = USB_Host_WaitMS(1)) != HOST_WAITERROR_Successful)
- goto End_Of_Control_Send;
+ return ReturnStatus;
if ((USB_ControlRequest.bmRequestType & CONTROL_REQTYPE_DIRECTION) == REQDIR_DEVICETOHOST)
{
Pipe_Unfreeze();
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_InReceived)) != HOST_SENDCONTROL_Successful)
- goto End_Of_Control_Send;
+ return ReturnStatus;
if (!(Pipe_BytesInPipe()))
DataLen = 0;
Pipe_Unfreeze();
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)) != HOST_SENDCONTROL_Successful)
- goto End_Of_Control_Send;
+ return ReturnStatus;
Pipe_ClearOUT();
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)) != HOST_SENDCONTROL_Successful)
- goto End_Of_Control_Send;
+ return ReturnStatus;
}
else
{
while (DataLen)
{
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)) != HOST_SENDCONTROL_Successful)
- goto End_Of_Control_Send;
+ return ReturnStatus;
while (DataLen && (Pipe_BytesInPipe() < USB_Host_ControlPipeSize))
{
}
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)) != HOST_SENDCONTROL_Successful)
- goto End_Of_Control_Send;
+ return ReturnStatus;
Pipe_Freeze();
}
Pipe_Unfreeze();
if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_InReceived)) != HOST_SENDCONTROL_Successful)
- goto End_Of_Control_Send;
+ return ReturnStatus;
Pipe_ClearIN();
}
-
-End_Of_Control_Send:
- Pipe_Freeze();
-
- if (BusSuspended)
- USB_Host_SuspendBus();
-
- Pipe_ResetPipe(PIPE_CONTROLPIPE);
-
+
return ReturnStatus;
}
return HOST_SENDCONTROL_Successful;
}
+uint8_t USB_Host_SendControlRequest(void* const BufferPtr)
+{
+ bool BusSuspended = USB_Host_IsBusSuspended();
+ uint8_t ReturnStatus = USB_Host_SendControlRequest_PRV(BufferPtr);
+
+ Pipe_Freeze();
+
+ if (BusSuspended)
+ USB_Host_SuspendBus();
+
+ Pipe_ResetPipe(PIPE_CONTROLPIPE);
+
+ return ReturnStatus;
+}
+
uint8_t USB_Host_SetDeviceConfiguration(const uint8_t ConfigNumber)
{
uint8_t ErrorCode;