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path: root/digital/avr/modules/usb/lufa/LUFA/Drivers/USB/LowLevel/Pipe.c
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Diffstat (limited to 'digital/avr/modules/usb/lufa/LUFA/Drivers/USB/LowLevel/Pipe.c')
-rw-r--r--digital/avr/modules/usb/lufa/LUFA/Drivers/USB/LowLevel/Pipe.c258
1 files changed, 258 insertions, 0 deletions
diff --git a/digital/avr/modules/usb/lufa/LUFA/Drivers/USB/LowLevel/Pipe.c b/digital/avr/modules/usb/lufa/LUFA/Drivers/USB/LowLevel/Pipe.c
new file mode 100644
index 00000000..743bb91f
--- /dev/null
+++ b/digital/avr/modules/usb/lufa/LUFA/Drivers/USB/LowLevel/Pipe.c
@@ -0,0 +1,258 @@
+/*
+ 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_PIPE_C
+#include "Pipe.h"
+
+uint8_t USB_ControlPipeSize = PIPE_CONTROLPIPE_DEFAULT_SIZE;
+
+bool Pipe_ConfigurePipe(const uint8_t Number, const uint8_t Type, const uint8_t Token, const uint8_t EndpointNumber,
+ const uint16_t Size, const uint8_t Banks)
+{
+ Pipe_SelectPipe(Number);
+ Pipe_EnablePipe();
+
+ UPCFG1X = 0;
+
+ UPCFG0X = ((Type << EPTYPE0) | Token | (EndpointNumber << PEPNUM0));
+ UPCFG1X = ((1 << ALLOC) | Banks | Pipe_BytesToEPSizeMask(Size));
+
+ return Pipe_IsConfigured();
+}
+
+void Pipe_ClearPipes(void)
+{
+ UPINT = 0;
+
+ for (uint8_t PNum = 0; PNum < PIPE_TOTAL_PIPES; PNum++)
+ {
+ Pipe_ResetPipe(PNum);
+ Pipe_SelectPipe(PNum);
+ UPIENX = 0;
+ UPINTX = 0;
+ Pipe_ClearError();
+ Pipe_ClearErrorFlags();
+ Pipe_DeallocateMemory();
+ Pipe_DisablePipe();
+ }
+}
+
+uint8_t Pipe_WaitUntilReady(void)
+{
+ uint8_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
+
+ USB_INT_Clear(USB_INT_HSOFI);
+
+ while (!(Pipe_ReadWriteAllowed()))
+ {
+ if (Pipe_IsStalled())
+ return PIPE_READYWAIT_PipeStalled;
+ else if (!(USB_IsConnected))
+ return PIPE_READYWAIT_DeviceDisconnected;
+
+ if (USB_INT_HasOccurred(USB_INT_HSOFI))
+ {
+ USB_INT_Clear(USB_INT_HSOFI);
+
+ if (!(TimeoutMSRem--))
+ return PIPE_READYWAIT_Timeout;
+ }
+ }
+
+ return PIPE_READYWAIT_NoError;
+}
+
+uint8_t Pipe_Write_Stream_LE(const void* Data, uint16_t Length
+#if !defined(NO_STREAM_CALLBACKS)
+ , uint8_t (* const Callback)(void)
+#endif
+ )
+{
+ uint8_t* DataStream = (uint8_t*)Data;
+ uint8_t ErrorCode;
+
+ if ((ErrorCode = Pipe_WaitUntilReady()))
+ return ErrorCode;
+
+ while (Length--)
+ {
+ if (!(Pipe_ReadWriteAllowed()))
+ {
+ Pipe_ClearCurrentBank();
+
+ #if !defined(NO_STREAM_CALLBACKS)
+ if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
+ return PIPE_RWSTREAM_ERROR_CallbackAborted;
+ #endif
+
+ if ((ErrorCode = Pipe_WaitUntilReady()))
+ return ErrorCode;
+ }
+
+ Pipe_Write_Byte(*(DataStream++));
+ }
+
+ return PIPE_RWSTREAM_ERROR_NoError;
+}
+
+uint8_t Pipe_Write_Stream_BE(const void* Data, uint16_t Length
+#if !defined(NO_STREAM_CALLBACKS)
+ , uint8_t (* const Callback)(void)
+#endif
+ )
+{
+ uint8_t* DataStream = (uint8_t*)(Data + Length - 1);
+ uint8_t ErrorCode;
+
+ if ((ErrorCode = Pipe_WaitUntilReady()))
+ return ErrorCode;
+
+ while (Length--)
+ {
+ if (!(Pipe_ReadWriteAllowed()))
+ {
+ Pipe_ClearCurrentBank();
+
+ #if !defined(NO_STREAM_CALLBACKS)
+ if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
+ return PIPE_RWSTREAM_ERROR_CallbackAborted;
+ #endif
+
+ if ((ErrorCode = Pipe_WaitUntilReady()))
+ return ErrorCode;
+ }
+
+ Pipe_Write_Byte(*(DataStream--));
+ }
+
+ return PIPE_RWSTREAM_ERROR_NoError;
+}
+
+uint8_t Pipe_Discard_Stream(uint16_t Length
+#if !defined(NO_STREAM_CALLBACKS)
+ , uint8_t (* const Callback)(void)
+#endif
+ )
+{
+ uint8_t ErrorCode;
+
+ if ((ErrorCode = Pipe_WaitUntilReady()))
+ return ErrorCode;
+
+ while (Length--)
+ {
+ if (!(Pipe_ReadWriteAllowed()))
+ {
+ Pipe_ClearCurrentBank();
+
+ #if !defined(NO_STREAM_CALLBACKS)
+ if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
+ return PIPE_RWSTREAM_ERROR_CallbackAborted;
+ #endif
+
+ if ((ErrorCode = Pipe_WaitUntilReady()))
+ return ErrorCode;
+ }
+
+ Pipe_Discard_Byte();
+ }
+
+ return PIPE_RWSTREAM_ERROR_NoError;
+}
+
+uint8_t Pipe_Read_Stream_LE(void* Buffer, uint16_t Length
+ #if !defined(NO_STREAM_CALLBACKS)
+ , uint8_t (* const Callback)(void)
+#endif
+ )
+{
+ uint8_t* DataStream = (uint8_t*)Buffer;
+ uint8_t ErrorCode;
+
+ if ((ErrorCode = Pipe_WaitUntilReady()))
+ return ErrorCode;
+
+ while (Length--)
+ {
+ if (!(Pipe_ReadWriteAllowed()))
+ {
+ Pipe_ClearCurrentBank();
+
+ #if !defined(NO_STREAM_CALLBACKS)
+ if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
+ return PIPE_RWSTREAM_ERROR_CallbackAborted;
+ #endif
+
+ if ((ErrorCode = Pipe_WaitUntilReady()))
+ return ErrorCode;
+ }
+
+ *(DataStream++) = Pipe_Read_Byte();
+ }
+
+ return PIPE_RWSTREAM_ERROR_NoError;
+}
+
+uint8_t Pipe_Read_Stream_BE(void* Buffer, uint16_t Length
+ #if !defined(NO_STREAM_CALLBACKS)
+ , uint8_t (* const Callback)(void)
+#endif
+ )
+{
+ uint8_t* DataStream = (uint8_t*)(Buffer + Length - 1);
+ uint8_t ErrorCode;
+
+ if ((ErrorCode = Pipe_WaitUntilReady()))
+ return ErrorCode;
+
+ while (Length--)
+ {
+ if (!(Pipe_ReadWriteAllowed()))
+ {
+ Pipe_ClearCurrentBank();
+
+ #if !defined(NO_STREAM_CALLBACKS)
+ if ((Callback != NULL) && (Callback() == STREAMCALLBACK_Abort))
+ return PIPE_RWSTREAM_ERROR_CallbackAborted;
+ #endif
+
+ if ((ErrorCode = Pipe_WaitUntilReady()))
+ return ErrorCode;
+ }
+
+ *(DataStream--) = Pipe_Read_Byte();
+ }
+
+ return PIPE_RWSTREAM_ERROR_NoError;
+}
+
+#endif