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authortmk <hasu@tmk-kbd.com>2015-05-13 04:13:10 +0200
committertmk <hasu@tmk-kbd.com>2015-05-13 04:13:10 +0200
commitf6d56675f9f981c5464f0ca7a1fbb0162154e8c5 (patch)
tree57c9d4b3808a26116ae0ee7956fc00b84841aa2b /protocol/lufa/LUFA-git/LUFA/Drivers/USB/Core/AVR8/PipeStream_AVR8.c
parent4d116a04e94cf0d19317d5b44e4fa9f34a3e5594 (diff)
downloadqmk_firmware-f6d56675f9f981c5464f0ca7a1fbb0162154e8c5.tar.gz
qmk_firmware-f6d56675f9f981c5464f0ca7a1fbb0162154e8c5.tar.xz
Squashed 'tmk_core/' changes from caca2c0..dc0e46e
dc0e46e Rename LUFA to LUFA-git 3bfa7fa Remove LUFA-120730 215b764 Merge commit 'afa0f22a9299686fd88f58ce09c5b521ac917e8f' as 'protocol/lufa/LUFA' afa0f22 Squashed 'protocol/lufa/LUFA/' content from commit def7fca c0c42fa Remove submodule of LUFA 30f897d Merge commit '87ced33feb74e79c3281dda36eb6d6d153399b41' as 'protocol/usb_hid/USB_Host_Shield_2.0' 87ced33 Squashed 'protocol/usb_hid/USB_Host_Shield_2.0/' content from commit aab4a69 14f6d49 Remove submodule of USB_Host_Shield_2.0 git-subtree-dir: tmk_core git-subtree-split: dc0e46eaa4367d4e218f8816e3c117895820f07c
Diffstat (limited to 'protocol/lufa/LUFA-git/LUFA/Drivers/USB/Core/AVR8/PipeStream_AVR8.c')
-rw-r--r--protocol/lufa/LUFA-git/LUFA/Drivers/USB/Core/AVR8/PipeStream_AVR8.c221
1 files changed, 221 insertions, 0 deletions
diff --git a/protocol/lufa/LUFA-git/LUFA/Drivers/USB/Core/AVR8/PipeStream_AVR8.c b/protocol/lufa/LUFA-git/LUFA/Drivers/USB/Core/AVR8/PipeStream_AVR8.c
new file mode 100644
index 000000000..47169b3fe
--- /dev/null
+++ b/protocol/lufa/LUFA-git/LUFA/Drivers/USB/Core/AVR8/PipeStream_AVR8.c
@@ -0,0 +1,221 @@
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2014.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2014 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 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
+ 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 "../../../../Common/Common.h"
+#if (ARCH == ARCH_AVR8)
+
+#define __INCLUDE_FROM_USB_DRIVER
+#include "../USBMode.h"
+
+#if defined(USB_CAN_BE_HOST)
+
+#include "PipeStream_AVR8.h"
+
+uint8_t Pipe_Discard_Stream(uint16_t Length,
+ uint16_t* const BytesProcessed)
+{
+ uint8_t ErrorCode;
+ uint16_t BytesInTransfer = 0;
+
+ Pipe_SetPipeToken(PIPE_TOKEN_IN);
+
+ if ((ErrorCode = Pipe_WaitUntilReady()))
+ return ErrorCode;
+
+ if (BytesProcessed != NULL)
+ Length -= *BytesProcessed;
+
+ while (Length)
+ {
+ if (!(Pipe_IsReadWriteAllowed()))
+ {
+ Pipe_ClearIN();
+
+ if (BytesProcessed != NULL)
+ {
+ *BytesProcessed += BytesInTransfer;
+ return PIPE_RWSTREAM_IncompleteTransfer;
+ }
+
+ if ((ErrorCode = Pipe_WaitUntilReady()))
+ return ErrorCode;
+ }
+ else
+ {
+ Pipe_Discard_8();
+
+ Length--;
+ BytesInTransfer++;
+ }
+ }
+
+ return PIPE_RWSTREAM_NoError;
+}
+
+uint8_t Pipe_Null_Stream(uint16_t Length,
+ uint16_t* const BytesProcessed)
+{
+ uint8_t ErrorCode;
+ uint16_t BytesInTransfer = 0;
+
+ Pipe_SetPipeToken(PIPE_TOKEN_OUT);
+
+ if ((ErrorCode = Pipe_WaitUntilReady()))
+ return ErrorCode;
+
+ if (BytesProcessed != NULL)
+ Length -= *BytesProcessed;
+
+ while (Length)
+ {
+ if (!(Pipe_IsReadWriteAllowed()))
+ {
+ Pipe_ClearOUT();
+
+ if (BytesProcessed != NULL)
+ {
+ *BytesProcessed += BytesInTransfer;
+ return PIPE_RWSTREAM_IncompleteTransfer;
+ }
+
+ USB_USBTask();
+
+ if ((ErrorCode = Pipe_WaitUntilReady()))
+ return ErrorCode;
+ }
+ else
+ {
+ Pipe_Write_8(0);
+
+ Length--;
+ BytesInTransfer++;
+ }
+ }
+
+ return PIPE_RWSTREAM_NoError;
+}
+
+/* The following abuses the C preprocessor in order to copy-paste common code with slight alterations,
+ * so that the code needs to be written once. It is a crude form of templating to reduce code maintenance. */
+
+#define TEMPLATE_FUNC_NAME Pipe_Write_Stream_LE
+#define TEMPLATE_BUFFER_TYPE const void*
+#define TEMPLATE_TOKEN PIPE_TOKEN_OUT
+#define TEMPLATE_CLEAR_PIPE() Pipe_ClearOUT()
+#define TEMPLATE_BUFFER_OFFSET(Length) 0
+#define TEMPLATE_BUFFER_MOVE(BufferPtr, Amount) DataStream += Amount
+#define TEMPLATE_TRANSFER_BYTE(BufferPtr) Pipe_Write_8(*BufferPtr)
+#include "Template/Template_Pipe_RW.c"
+
+#define TEMPLATE_FUNC_NAME Pipe_Write_Stream_BE
+#define TEMPLATE_BUFFER_TYPE const void*
+#define TEMPLATE_TOKEN PIPE_TOKEN_OUT
+#define TEMPLATE_CLEAR_PIPE() Pipe_ClearOUT()
+#define TEMPLATE_BUFFER_OFFSET(Length) (Length - 1)
+#define TEMPLATE_BUFFER_MOVE(BufferPtr, Amount) DataStream -= Amount
+#define TEMPLATE_TRANSFER_BYTE(BufferPtr) Pipe_Write_8(*BufferPtr)
+#include "Template/Template_Pipe_RW.c"
+
+#define TEMPLATE_FUNC_NAME Pipe_Read_Stream_LE
+#define TEMPLATE_BUFFER_TYPE void*
+#define TEMPLATE_TOKEN PIPE_TOKEN_IN
+#define TEMPLATE_CLEAR_PIPE() Pipe_ClearIN()
+#define TEMPLATE_BUFFER_OFFSET(Length) 0
+#define TEMPLATE_BUFFER_MOVE(BufferPtr, Amount) DataStream += Amount
+#define TEMPLATE_TRANSFER_BYTE(BufferPtr) *BufferPtr = Pipe_Read_8()
+#include "Template/Template_Pipe_RW.c"
+
+#define TEMPLATE_FUNC_NAME Pipe_Read_Stream_BE
+#define TEMPLATE_BUFFER_TYPE void*
+#define TEMPLATE_TOKEN PIPE_TOKEN_IN
+#define TEMPLATE_CLEAR_PIPE() Pipe_ClearIN()
+#define TEMPLATE_BUFFER_OFFSET(Length) (Length - 1)
+#define TEMPLATE_BUFFER_MOVE(BufferPtr, Amount) DataStream -= Amount
+#define TEMPLATE_TRANSFER_BYTE(BufferPtr) *BufferPtr = Pipe_Read_8()
+#include "Template/Template_Pipe_RW.c"
+
+#define TEMPLATE_FUNC_NAME Pipe_Write_PStream_LE
+#define TEMPLATE_BUFFER_TYPE const void*
+#define TEMPLATE_TOKEN PIPE_TOKEN_OUT
+#define TEMPLATE_CLEAR_PIPE() Pipe_ClearOUT()
+#define TEMPLATE_BUFFER_OFFSET(Length) 0
+#define TEMPLATE_BUFFER_MOVE(BufferPtr, Amount) DataStream += Amount
+#define TEMPLATE_TRANSFER_BYTE(BufferPtr) Pipe_Write_8(pgm_read_byte(BufferPtr))
+#include "Template/Template_Pipe_RW.c"
+
+#define TEMPLATE_FUNC_NAME Pipe_Write_PStream_BE
+#define TEMPLATE_BUFFER_TYPE const void*
+#define TEMPLATE_TOKEN PIPE_TOKEN_OUT
+#define TEMPLATE_CLEAR_PIPE() Pipe_ClearOUT()
+#define TEMPLATE_BUFFER_OFFSET(Length) (Length - 1)
+#define TEMPLATE_BUFFER_MOVE(BufferPtr, Amount) DataStream -= Amount
+#define TEMPLATE_TRANSFER_BYTE(BufferPtr) Pipe_Write_8(pgm_read_byte(BufferPtr))
+#include "Template/Template_Pipe_RW.c"
+
+#define TEMPLATE_FUNC_NAME Pipe_Write_EStream_LE
+#define TEMPLATE_BUFFER_TYPE const void*
+#define TEMPLATE_TOKEN PIPE_TOKEN_OUT
+#define TEMPLATE_CLEAR_PIPE() Pipe_ClearOUT()
+#define TEMPLATE_BUFFER_OFFSET(Length) 0
+#define TEMPLATE_BUFFER_MOVE(BufferPtr, Amount) DataStream += Amount
+#define TEMPLATE_TRANSFER_BYTE(BufferPtr) Pipe_Write_8(eeprom_read_byte(BufferPtr))
+#include "Template/Template_Pipe_RW.c"
+
+#define TEMPLATE_FUNC_NAME Pipe_Write_EStream_BE
+#define TEMPLATE_BUFFER_TYPE const void*
+#define TEMPLATE_TOKEN PIPE_TOKEN_OUT
+#define TEMPLATE_CLEAR_PIPE() Pipe_ClearOUT()
+#define TEMPLATE_BUFFER_OFFSET(Length) (Length - 1)
+#define TEMPLATE_BUFFER_MOVE(BufferPtr, Amount) DataStream -= Amount
+#define TEMPLATE_TRANSFER_BYTE(BufferPtr) Pipe_Write_8(eeprom_read_byte(BufferPtr))
+#include "Template/Template_Pipe_RW.c"
+
+#define TEMPLATE_FUNC_NAME Pipe_Read_EStream_LE
+#define TEMPLATE_BUFFER_TYPE void*
+#define TEMPLATE_TOKEN PIPE_TOKEN_IN
+#define TEMPLATE_CLEAR_PIPE() Pipe_ClearIN()
+#define TEMPLATE_BUFFER_OFFSET(Length) 0
+#define TEMPLATE_BUFFER_MOVE(BufferPtr, Amount) DataStream += Amount
+#define TEMPLATE_TRANSFER_BYTE(BufferPtr) eeprom_update_byte(BufferPtr, Pipe_Read_8())
+#include "Template/Template_Pipe_RW.c"
+
+#define TEMPLATE_FUNC_NAME Pipe_Read_EStream_BE
+#define TEMPLATE_BUFFER_TYPE void*
+#define TEMPLATE_TOKEN PIPE_TOKEN_IN
+#define TEMPLATE_CLEAR_PIPE() Pipe_ClearIN()
+#define TEMPLATE_BUFFER_OFFSET(Length) (Length - 1)
+#define TEMPLATE_BUFFER_MOVE(BufferPtr, Amount) DataStream -= Amount
+#define TEMPLATE_TRANSFER_BYTE(BufferPtr) eeprom_update_byte(BufferPtr, Pipe_Read_8())
+#include "Template/Template_Pipe_RW.c"
+
+#endif
+
+#endif
+