diff options
Diffstat (limited to 'LUFA/Drivers/USB/LowLevel/HostChapter9.c')
| -rw-r--r-- | LUFA/Drivers/USB/LowLevel/HostChapter9.c | 358 |
1 files changed, 179 insertions, 179 deletions
diff --git a/LUFA/Drivers/USB/LowLevel/HostChapter9.c b/LUFA/Drivers/USB/LowLevel/HostChapter9.c index e5072c8a..69575f18 100644 --- a/LUFA/Drivers/USB/LowLevel/HostChapter9.c +++ b/LUFA/Drivers/USB/LowLevel/HostChapter9.c @@ -1,179 +1,179 @@ -/*
- LUFA Library
- Copyright (C) Dean Camera, 2010.
-
- dean [at] fourwalledcubicle [dot] com
- www.fourwalledcubicle.com
-*/
-
-/*
- Copyright 2010 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 "../HighLevel/USBMode.h"
-
-#if defined(USB_CAN_BE_HOST)
-
-#define __INCLUDE_FROM_HOSTCHAPTER9_C
-#include "HostChapter9.h"
-
-uint8_t USB_Host_SendControlRequest(void* 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
+/* + LUFA Library + Copyright (C) Dean Camera, 2010. + + dean [at] fourwalledcubicle [dot] com + www.fourwalledcubicle.com +*/ + +/* + Copyright 2010 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 "../HighLevel/USBMode.h" + +#if defined(USB_CAN_BE_HOST) + +#define __INCLUDE_FROM_HOSTCHAPTER9_C +#include "HostChapter9.h" + +uint8_t USB_Host_SendControlRequest(void* 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 |