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path: root/digital/avr/modules/usb/lufa/LUFA/Drivers/USB/LowLevel/HostChapter9.c
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Diffstat (limited to 'digital/avr/modules/usb/lufa/LUFA/Drivers/USB/LowLevel/HostChapter9.c')
-rw-r--r--digital/avr/modules/usb/lufa/LUFA/Drivers/USB/LowLevel/HostChapter9.c175
1 files changed, 175 insertions, 0 deletions
diff --git a/digital/avr/modules/usb/lufa/LUFA/Drivers/USB/LowLevel/HostChapter9.c b/digital/avr/modules/usb/lufa/LUFA/Drivers/USB/LowLevel/HostChapter9.c
new file mode 100644
index 00000000..8a584964
--- /dev/null
+++ b/digital/avr/modules/usb/lufa/LUFA/Drivers/USB/LowLevel/HostChapter9.c
@@ -0,0 +1,175 @@
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2009.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.fourwalledcubicle.com
+*/
+
+/*
+ Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, and distribute this software
+ and its documentation for any purpose and without fee is hereby
+ granted, 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.
+*/
+
+#include "USBMode.h"
+#if defined(USB_CAN_BE_HOST)
+
+#define INCLUDE_FROM_HOSTCHAPTER9_C
+#include "HostChapter9.h"
+
+USB_Host_Request_Header_t USB_HostRequest;
+
+uint8_t USB_Host_SendControlRequest(void* BufferPtr)
+{
+ uint8_t* HeaderStream = (uint8_t*)&USB_HostRequest;
+ uint8_t* DataStream = (uint8_t*)BufferPtr;
+ bool BusSuspended = USB_Host_IsBusSuspended();
+ uint8_t ReturnStatus = HOST_SENDCONTROL_Successful;
+ uint16_t DataLen = USB_HostRequest.wLength;
+
+ USB_Host_ResumeBus();
+
+ if ((ReturnStatus = USB_Host_WaitMS(1)) != HOST_WAITERROR_Successful)
+ return ReturnStatus;
+
+ Pipe_SelectPipe(PIPE_CONTROLPIPE);
+ Pipe_SetToken(PIPE_TOKEN_SETUP);
+ Pipe_ClearErrorFlags();
+ Pipe_ClearSetupSent();
+
+ Pipe_Unfreeze();
+
+ for (uint8_t HeaderByte = 0; HeaderByte < sizeof(USB_Host_Request_Header_t); HeaderByte++)
+ Pipe_Write_Byte(*(HeaderStream++));
+
+ Pipe_ClearSetupOUT();
+
+ if ((ReturnStatus = USB_Host_Wait_For_Setup_IOS(USB_HOST_WAITFOR_SetupSent)))
+ goto End_Of_Control_Send;
+
+ Pipe_ClearSetupSent();
+ Pipe_Freeze();
+
+ if ((ReturnStatus = USB_Host_WaitMS(1)) != HOST_WAITERROR_Successful)
+ goto End_Of_Control_Send;
+
+ if ((USB_HostRequest.bmRequestType & CONTROL_REQTYPE_DIRECTION) == REQDIR_DEVICETOHOST)
+ {
+ Pipe_SetToken(PIPE_TOKEN_IN);
+
+ if (DataStream != NULL)
+ {
+ while (DataLen)
+ {
+ Pipe_Unfreeze();
+
+ if ((ReturnStatus = USB_Host_Wait_For_Setup_IOS(USB_HOST_WAITFOR_InReceived)))
+ goto End_Of_Control_Send;
+
+ if (!(Pipe_BytesInPipe()))
+ DataLen = 0;
+
+ while (Pipe_BytesInPipe() && DataLen)
+ {
+ *(DataStream++) = Pipe_Read_Byte();
+ DataLen--;
+ }
+
+ Pipe_Freeze();
+ Pipe_ClearSetupIN();
+ }
+ }
+
+ Pipe_SetToken(PIPE_TOKEN_OUT);
+ Pipe_Unfreeze();
+
+ if ((ReturnStatus = USB_Host_Wait_For_Setup_IOS(USB_HOST_WAITFOR_OutReady)))
+ goto End_Of_Control_Send;
+
+ Pipe_ClearSetupOUT();
+ }
+ else
+ {
+ if (DataStream != NULL)
+ {
+ Pipe_SetToken(PIPE_TOKEN_OUT);
+ Pipe_Unfreeze();
+
+ while (DataLen)
+ {
+ if ((ReturnStatus = USB_Host_Wait_For_Setup_IOS(USB_HOST_WAITFOR_OutReady)))
+ goto End_Of_Control_Send;
+
+ while (DataLen && (Pipe_BytesInPipe() < USB_ControlPipeSize))
+ {
+ Pipe_Write_Byte(*(DataStream++));
+ DataLen--;
+ }
+
+ Pipe_ClearSetupOUT();
+ }
+
+ if ((ReturnStatus = USB_Host_Wait_For_Setup_IOS(USB_HOST_WAITFOR_OutReady)))
+ goto End_Of_Control_Send;
+
+ Pipe_Freeze();
+ }
+
+ Pipe_SetToken(PIPE_TOKEN_IN);
+ Pipe_Unfreeze();
+
+ if ((ReturnStatus = USB_Host_Wait_For_Setup_IOS(USB_HOST_WAITFOR_InReceived)))
+ goto End_Of_Control_Send;
+
+ Pipe_ClearSetupIN();
+ }
+
+End_Of_Control_Send:
+ Pipe_Freeze();
+
+ if (BusSuspended)
+ USB_Host_SuspendBus();
+
+ Pipe_ResetPipe(PIPE_CONTROLPIPE);
+
+ return ReturnStatus;
+}
+
+static uint8_t USB_Host_Wait_For_Setup_IOS(const uint8_t WaitType)
+{
+ uint16_t TimeoutCounter = USB_HOST_TIMEOUT_MS;
+
+ while (!(((WaitType == USB_HOST_WAITFOR_SetupSent) && Pipe_IsSetupSent()) ||
+ ((WaitType == USB_HOST_WAITFOR_InReceived) && Pipe_IsSetupINReceived()) ||
+ ((WaitType == USB_HOST_WAITFOR_OutReady) && Pipe_IsSetupOUTReady())))
+ {
+ 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