+++ /dev/null
-/*
- LUFA Library
- Copyright (C) Dean Camera, 2011.
-
- dean [at] fourwalledcubicle [dot] com
- www.lufa-lib.org
-*/
-
-/*
- Copyright 2011 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
- without fee, provided that the above copyright notice appear in
- all copies and that both that the copyright notice and this
- permission notice and warranty disclaimer appear in supporting
- documentation, and that the name of the author not be used in
- advertising or publicity pertaining to distribution of the
- software without specific, written prior permission.
-
- The author disclaim 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
- whatsoever resulting from loss of use, data or profits, whether
- in an action of contract, negligence or other tortious action,
- arising out of or in connection with the use or performance of
- this software.
-*/
-
-#define __INCLUDE_FROM_USB_DRIVER
-#include "USBMode.h"
-
-#if defined(USB_CAN_BE_HOST)
-
-#define __INCLUDE_FROM_HOSTSTDREQ_C
-#include "HostStandardReq.h"
-
-uint8_t USB_Host_SendControlRequest(void* const BufferPtr)
-{
- uint8_t* HeaderStream = (uint8_t*)&USB_ControlRequest;
- 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;
-
- Pipe_SetPipeToken(PIPE_TOKEN_SETUP);
- Pipe_ClearErrorFlags();
-
- Pipe_Unfreeze();
-
- for (uint8_t HeaderByte = 0; HeaderByte < sizeof(USB_Request_Header_t); HeaderByte++)
- Pipe_Write_Byte(*(HeaderStream++));
-
- Pipe_ClearSETUP();
-
- if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_SetupSent)) != HOST_SENDCONTROL_Successful)
- goto End_Of_Control_Send;
-
- Pipe_Freeze();
-
- if ((ReturnStatus = USB_Host_WaitMS(1)) != HOST_WAITERROR_Successful)
- goto End_Of_Control_Send;
-
- if ((USB_ControlRequest.bmRequestType & CONTROL_REQTYPE_DIRECTION) == REQDIR_DEVICETOHOST)
- {
- Pipe_SetPipeToken(PIPE_TOKEN_IN);
-
- if (DataStream != NULL)
- {
- while (DataLen)
- {
- Pipe_Unfreeze();
-
- if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_InReceived)) != HOST_SENDCONTROL_Successful)
- goto End_Of_Control_Send;
-
- if (!(Pipe_BytesInPipe()))
- DataLen = 0;
-
- while (Pipe_BytesInPipe() && DataLen)
- {
- *(DataStream++) = Pipe_Read_Byte();
- DataLen--;
- }
-
- Pipe_Freeze();
- Pipe_ClearIN();
- }
- }
-
- Pipe_SetPipeToken(PIPE_TOKEN_OUT);
- Pipe_Unfreeze();
-
- if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)) != HOST_SENDCONTROL_Successful)
- goto End_Of_Control_Send;
-
- Pipe_ClearOUT();
-
- if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)) != HOST_SENDCONTROL_Successful)
- goto End_Of_Control_Send;
- }
- else
- {
- if (DataStream != NULL)
- {
- Pipe_SetPipeToken(PIPE_TOKEN_OUT);
- Pipe_Unfreeze();
-
- while (DataLen)
- {
- if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)) != HOST_SENDCONTROL_Successful)
- goto End_Of_Control_Send;
-
- while (DataLen && (Pipe_BytesInPipe() < USB_ControlPipeSize))
- {
- Pipe_Write_Byte(*(DataStream++));
- DataLen--;
- }
-
- Pipe_ClearOUT();
- }
-
- if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_OutReady)) != HOST_SENDCONTROL_Successful)
- goto End_Of_Control_Send;
-
- Pipe_Freeze();
- }
-
- Pipe_SetPipeToken(PIPE_TOKEN_IN);
- Pipe_Unfreeze();
-
- if ((ReturnStatus = USB_Host_WaitForIOS(USB_HOST_WAITFOR_InReceived)) != HOST_SENDCONTROL_Successful)
- goto End_Of_Control_Send;
-
- Pipe_ClearIN();
- }
-
-End_Of_Control_Send:
- Pipe_Freeze();
-
- if (BusSuspended)
- USB_Host_SuspendBus();
-
- Pipe_ResetPipe(PIPE_CONTROLPIPE);
-
- return ReturnStatus;
-}
-
-static uint8_t USB_Host_WaitForIOS(const uint8_t WaitType)
-{
- #if (USB_HOST_TIMEOUT_MS < 0xFF)
- uint8_t TimeoutCounter = USB_HOST_TIMEOUT_MS;
- #else
- uint16_t TimeoutCounter = USB_HOST_TIMEOUT_MS;
- #endif
-
- while (!(((WaitType == USB_HOST_WAITFOR_SetupSent) && Pipe_IsSETUPSent()) ||
- ((WaitType == USB_HOST_WAITFOR_InReceived) && Pipe_IsINReceived()) ||
- ((WaitType == USB_HOST_WAITFOR_OutReady) && Pipe_IsOUTReady())))
- {
- uint8_t ErrorCode;
-
- if ((ErrorCode = USB_Host_WaitMS(1)) != HOST_WAITERROR_Successful)
- return ErrorCode;
-
- if (!(TimeoutCounter--))
- return HOST_SENDCONTROL_SoftwareTimeOut;
- }
-
- return HOST_SENDCONTROL_Successful;
-}
-
-#endif
-
projects / pub / lufa.git / blobdiff