summaryrefslogtreecommitdiff
path: root/tmk_core/protocol/lufa/LUFA-git/Projects/Magstripe/Lib
diff options
context:
space:
mode:
Diffstat (limited to 'tmk_core/protocol/lufa/LUFA-git/Projects/Magstripe/Lib')
-rw-r--r--tmk_core/protocol/lufa/LUFA-git/Projects/Magstripe/Lib/CircularBitBuffer.c115
-rw-r--r--tmk_core/protocol/lufa/LUFA-git/Projects/Magstripe/Lib/CircularBitBuffer.h97
-rw-r--r--tmk_core/protocol/lufa/LUFA-git/Projects/Magstripe/Lib/MagstripeHW.h102
3 files changed, 314 insertions, 0 deletions
diff --git a/tmk_core/protocol/lufa/LUFA-git/Projects/Magstripe/Lib/CircularBitBuffer.c b/tmk_core/protocol/lufa/LUFA-git/Projects/Magstripe/Lib/CircularBitBuffer.c
new file mode 100644
index 000000000..fbd511b81
--- /dev/null
+++ b/tmk_core/protocol/lufa/LUFA-git/Projects/Magstripe/Lib/CircularBitBuffer.c
@@ -0,0 +1,115 @@
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2014.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2010 Denver Gingerich (denver [at] ossguy [dot] com)
+ 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.
+*/
+
+/** Circular bit buffer library. This will allow for individual bits
+ * to be stored in packed form inside circular buffers, to reduce
+ * overall RAM usage.
+ */
+
+#include "CircularBitBuffer.h"
+
+/** Function to initialize or reset a bit buffer, ready for data to be stored into it. */
+void BitBuffer_Init(BitBuffer_t* const Buffer)
+{
+ /* Reset the number of stored bits in the buffer */
+ Buffer->Elements = 0;
+
+ /* Reset the data in and out pointer structures in the buffer to the first buffer bit */
+ Buffer->In.CurrentByte = Buffer->Data;
+ Buffer->In.ByteMask = (1 << 0);
+ Buffer->Out.CurrentByte = Buffer->Data;
+ Buffer->Out.ByteMask = (1 << 0);
+}
+
+/** Function to store the given bit into the given bit buffer. */
+void BitBuffer_StoreNextBit(BitBuffer_t* const Buffer,
+ const bool Bit)
+{
+ /* If the bit to store is true, set the next bit in the buffer */
+ if (Bit)
+ *Buffer->In.CurrentByte |= Buffer->In.ByteMask;
+
+ /* Increment the number of stored bits in the buffer counter */
+ Buffer->Elements++;
+
+ /* Check if the current buffer byte is full of stored bits */
+ if (Buffer->In.ByteMask == (1 << 7))
+ {
+ /* Check if the end of the buffer has been reached, if so reset to start of buffer, otherwise advance to next bit */
+ if (Buffer->In.CurrentByte != &Buffer->Data[sizeof(Buffer->Data) - 1])
+ Buffer->In.CurrentByte++;
+ else
+ Buffer->In.CurrentByte = Buffer->Data;
+
+ /* Reset the storage bit mask in the current buffer byte to the first bit */
+ Buffer->In.ByteMask = (1 << 0);
+ }
+ else
+ {
+ /* Shift the current storage bit mask to the next bit in the current byte */
+ Buffer->In.ByteMask <<= 1;
+ }
+}
+
+/** Function to retrieve the next bit stored in the given bit buffer. */
+bool BitBuffer_GetNextBit(BitBuffer_t* const Buffer)
+{
+ /* Retrieve the value of the next bit stored in the buffer */
+ bool Bit = ((*Buffer->Out.CurrentByte & Buffer->Out.ByteMask) != 0);
+
+ /* Clear the buffer bit */
+ *Buffer->Out.CurrentByte &= ~Buffer->Out.ByteMask;
+
+ /* Decrement the number of stored bits in the buffer counter */
+ Buffer->Elements--;
+
+ /* Check if the current buffer byte is empty of stored bits */
+ if (Buffer->Out.ByteMask == (1 << 7))
+ {
+ /* Check if the end of the buffer has been reached, if so reset to start of buffer, otherwise advance to next bit */
+ if (Buffer->Out.CurrentByte != &Buffer->Data[sizeof(Buffer->Data) - 1])
+ Buffer->Out.CurrentByte++;
+ else
+ Buffer->Out.CurrentByte = Buffer->Data;
+
+ /* Reset the retrieval bit mask in the current buffer byte to the first bit */
+ Buffer->Out.ByteMask = (1 << 0);
+ }
+ else
+ {
+ /* Shift the current retrieval bit mask to the next bit in the current byte */
+ Buffer->Out.ByteMask <<= 1;
+ }
+
+ /* Return the retrieved bit from the buffer */
+ return Bit;
+}
+
diff --git a/tmk_core/protocol/lufa/LUFA-git/Projects/Magstripe/Lib/CircularBitBuffer.h b/tmk_core/protocol/lufa/LUFA-git/Projects/Magstripe/Lib/CircularBitBuffer.h
new file mode 100644
index 000000000..918c82533
--- /dev/null
+++ b/tmk_core/protocol/lufa/LUFA-git/Projects/Magstripe/Lib/CircularBitBuffer.h
@@ -0,0 +1,97 @@
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2014.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2010 Denver Gingerich (denver [at] ossguy [dot] com)
+ 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.
+*/
+
+/** \file
+ *
+ * Header file for CircularBitBuffer.c.
+ */
+
+#ifndef _CIRCULARBITBUFFER_H_
+#define _CIRCULARBITBUFFER_H_
+
+ /* Includes: */
+ #include <avr/io.h>
+ #include <stdbool.h>
+
+ #include <LUFA/Common/Common.h>
+
+ /* Macros: */
+ #if (defined(__AVR_AT90USB1287__) || defined(__AVR_AT90USB647__) || \
+ defined(__AVR_AT90USB1286__) || defined(__AVR_AT90USB646__)) || defined(__DOXYGEN__)
+ /** Maximum number of bits which can be stored into a bit buffer. The memory usage is one eighth of this value per buffer. */
+ #define MAX_BITS 8192
+ #else
+ #define MAX_BITS 1024
+ #endif
+
+ /* Type Defines: */
+ /** Type define for a pointer to a bit in a bit buffer. */
+ typedef struct
+ {
+ uint8_t* CurrentByte; /**< Pointer to the current byte in the buffer */
+ uint8_t ByteMask; /**< Mask of the current bit in the buffer */
+ } BitBufferPointer_t;
+
+ /** Type define for a circular packet bit buffer. */
+ typedef struct
+ {
+ uint8_t Data[MAX_BITS / 8]; /**< Buffer to hold the stored bits in packed form */
+ uint16_t Elements; /**< Number of stored bits in the bit buffer */
+
+ BitBufferPointer_t In; /**< Bit pointer to the next storage location in the buffer */
+ BitBufferPointer_t Out; /**< Bit pointer to the next retrieval location in the buffer */
+ } BitBuffer_t;
+
+ /* Function Prototypes: */
+ /** Initializes or resets a given bit buffer, ready to store new bits.
+ *
+ * \param[in,out] Buffer Bit buffer to initialize
+ */
+ void BitBuffer_Init(BitBuffer_t* const Buffer) ATTR_NON_NULL_PTR_ARG(1);
+
+ /** Stores a bit into the next location inside a given bit buffer.
+ *
+ * \param[in,out] Buffer Bit buffer to store a bit into
+ * \param[in] Bit Bit to store into the buffer
+ */
+ void BitBuffer_StoreNextBit(BitBuffer_t* const Buffer,
+ const bool Bit) ATTR_NON_NULL_PTR_ARG(1);
+
+ /** Retrieves a bit from the next location inside a given bit buffer.
+ *
+ * \param[in,out] Buffer Bit buffer to retrieve a bit from
+ *
+ * \return Next bit from the buffer
+ */
+ bool BitBuffer_GetNextBit(BitBuffer_t* const Buffer) ATTR_NON_NULL_PTR_ARG(1);
+
+#endif
+
diff --git a/tmk_core/protocol/lufa/LUFA-git/Projects/Magstripe/Lib/MagstripeHW.h b/tmk_core/protocol/lufa/LUFA-git/Projects/Magstripe/Lib/MagstripeHW.h
new file mode 100644
index 000000000..45c040eec
--- /dev/null
+++ b/tmk_core/protocol/lufa/LUFA-git/Projects/Magstripe/Lib/MagstripeHW.h
@@ -0,0 +1,102 @@
+/*
+ Copyright 2010 Denver Gingerich (denver [at] ossguy [dot] com)
+ 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.
+*/
+
+/*
+ NOTE: The user of this include file MUST define the following macros
+ prior to including the file:
+
+ MAG_T1_CLOCK_PIN Pin connected to Track 1 clock wire (i.e.. PORTC1)
+ MAG_T1_DATA_PIN Pin connected to Track 1 data wire (i.e.. PORTC2)
+ MAG_T2_CLOCK_PIN Pin connected to Track 2 clock wire (i.e.. PORTC3)
+ MAG_T2_DATA_PIN Pin connected to Track 2 data wire (i.e.. PORTC0)
+ MAG_T3_CLOCK_PIN Pin connected to Track 3 clock wire (i.e.. PORTC5)
+ MAG_T3_DATA_PIN Pin connected to Track 3 data wire (i.e.. PORTC6)
+ MAG_CLS_PIN Pin connected to card loaded wire (i.e.. PORTC4)
+ MAG_PIN PIN macro for the reader's port (i.e.. PINC)
+ MAG_DDR DDR macro for the reader's port (i.e.. DDRC)
+ MAG_PORT PORT macro for the reader's port (i.e.. PORTC)
+
+ The example macros listed above assume that the Track 2 data wire is
+ connected to pin 0 on port C, the Track 2 clock wire is connected to
+ pin 3 on port C (similarly for Tracks 1 and 3), and the card loaded
+ wire is connected to pin 4 on port C.
+
+ If the mag-stripe reader you are using only reads one or two tracks,
+ then set the clock and data pins for the tracks it doesn't read to a
+ pin that is unused. For example, on the AT90USBKey, any of the pins on
+ port C that do not have wires attached will be unused since they are
+ not connected to any onboard devices (such as the joystick or
+ temperature sensor).
+
+ Connecting wires to pins on different ports (i.e.. a data wire to pin 0
+ on port C and a clock wire to pin 0 on port D) is currently
+ unsupported. All pins specified above must be on the same port.
+*/
+
+/** \file
+ *
+ * Driver header for a TTL Magnetic Card reader device (such as the Omron V3B-4K).
+ */
+
+#ifndef _MAGSTRIPEHW_H_
+#define _MAGSTRIPEHW_H_
+
+ /* Includes: */
+ #include <avr/io.h>
+
+ #include <LUFA/Common/Common.h>
+ #include "Config/AppConfig.h"
+
+ /* Private Interface - For use in library only: */
+ /* Macros: */
+ /** Mask of the track data, clock and card detection pins. */
+ #define MAG_MASK (MAG_T1_DATA | MAG_T1_CLOCK | \
+ MAG_T2_DATA | MAG_T2_CLOCK | \
+ MAG_T3_DATA | MAG_T3_CLOCK | \
+ MAG_CARDPRESENT)
+
+ /* Public Interface - May be used in end-application: */
+ /* Inline Functions: */
+ /** Initializes the magnetic stripe card reader ports and pins so that the card reader
+ * device can be controlled and read by the card reader driver. This must be called before
+ * trying to read any of the card reader's status lines.
+ */
+ static inline void Magstripe_Init(void)
+ {
+ MAG_DDR &= ~MAG_MASK;
+ MAG_PORT |= MAG_MASK;
+ };
+
+ /** Returns the status of all the magnetic card reader's outputs.
+ *
+ * \return A mask indicating which card lines are high or low
+ */
+ static inline uint8_t Magstripe_GetStatus(void) ATTR_WARN_UNUSED_RESULT;
+ static inline uint8_t Magstripe_GetStatus(void)
+ {
+ /* Mag-stripe IOs are active low and must be inverted when read */
+ return ((uint8_t)~MAG_PIN & MAG_MASK);
+ }
+
+#endif
+