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diff --git a/at91lib/components/iso7816/iso7816_4.h b/at91lib/components/iso7816/iso7816_4.h
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+/* ----------------------------------------------------------------------------
+ *         ATMEL Microcontroller Software Support 
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2008, Atmel Corporation
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the disclaimer below.
+ *
+ * Atmel's name may not be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
+ * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ----------------------------------------------------------------------------
+ */
+
+//------------------------------------------------------------------------------
+/// \unit
+///
+/// !Purpose
+///
+/// Definition of methods for ISO7816 driver.
+/// 
+/// !Usage
+/// 
+/// -# ISO7816_Init
+/// -# ISO7816_IccPowerOff
+/// -# ISO7816_XfrBlockTPDU_T0
+/// -# ISO7816_Escape
+/// -# ISO7816_RestartClock
+/// -# ISO7816_StopClock
+/// -# ISO7816_toAPDU
+/// -# ISO7816_Datablock_ATR
+/// -# ISO7816_SetDataRateandClockFrequency
+/// -# ISO7816_StatusReset
+/// -# ISO7816_cold_reset
+/// -# ISO7816_warm_reset
+/// -# ISO7816_Decode_ATR
+//------------------------------------------------------------------------------
+
+#ifndef ISO7816_4_H
+#define ISO7816_4_H
+
+//------------------------------------------------------------------------------
+// Constants Definition
+//------------------------------------------------------------------------------
+
+/// Size max of Answer To Reset
+#define ATR_SIZE_MAX            55
+
+/// NULL byte to restart byte procedure
+#define ISO_NULL_VAL            0x60
+
+//------------------------------------------------------------------------------
+//         Exported functions
+//------------------------------------------------------------------------------
+extern void ISO7816_Init( const Pin pPinIso7816RstMC );
+extern void ISO7816_IccPowerOff(void);
+extern unsigned short ISO7816_XfrBlockTPDU_T0(const unsigned char *pAPDU, 
+                                        unsigned char *pMessage, 
+                                        unsigned short wLength );
+extern void ISO7816_Escape( void );
+extern void ISO7816_RestartClock(void);
+extern void ISO7816_StopClock( void );
+extern void ISO7816_toAPDU( void );
+extern void ISO7816_Datablock_ATR( unsigned char* pAtr, unsigned char* pLength );
+extern void ISO7816_SetDataRateandClockFrequency( unsigned int dwClockFrequency, unsigned int dwDataRate );
+extern unsigned char ISO7816_StatusReset( void );
+extern void ISO7816_cold_reset( void );
+extern void ISO7816_warm_reset( void );
+extern void ISO7816_Decode_ATR( unsigned char* pAtr );
+
+#endif // ISO7816_4_H
+