Issue 20 patch (refactored code of the iso15693 implementation as well as several enhancements) [Adrian Dabrowski "atrox"]

common/iso15693tools.h

@@ -0,0 +1,127 @@
+// ISO15693 commons
+// Adrian Dabrowski 2010, GPLv2
+
+#ifndef ISO15693_H__
+#define ISO15693_H__
+
+// ISO15693 CRC
+#define ISO15_CRC_PRESET	(uint16_t)0xFFFF
+#define ISO15_CRC_POLY		(uint16_t)0x8408
+#define ISO15_CRC_CHECK		((uint16_t)(~0xF0B8 & 0xFFFF)) 	// use this for checking of a correct crc
+
+// REQUEST FLAGS
+
+#define ISO15_REQ_SUBCARRIER_SINGLE	0x00	// Tag should respond using one subcarrier (ASK)
+#define ISO15_REQ_SUBCARRIER_TWO		0x01	// Tag should respond using two subcarriers (FSK)
+#define ISO15_REQ_DATARATE_LOW		0x00	// Tag should respond using low data rate
+#define ISO15_REQ_DATARATE_HIGH		0x02	// Tag should respond using high data rate
+#define ISO15_REQ_NONINVENTORY		0x00
+#define ISO15_REQ_INVENTORY		0x04	// This is an inventory request - see inventory flags
+#define ISO15_REQ_PROTOCOL_NONEXT		0x00
+#define ISO15_REQ_PROTOCOL_EXT		0x08	// RFU
+
+// REQUEST FLAGS when INVENTORY is not set
+
+#define ISO15_REQ_SELECT			0x10	// only selected cards response
+#define ISO15_REQ_ADDRESS			0x20	// this req contains an address
+#define ISO15_REQ_OPTION			0x40	// Command specific option selector
+
+//REQUEST FLAGS when INVENTORY is set
+
+#define ISO15_REQINV_AFI			0x10	// AFI Field is present
+#define ISO15_REQINV_SLOT1		0x20	// 1 Slot
+#define ISO15_REQINV_SLOT16		0x00	// 16 Slots
+#define ISO15_REQINV_OPTION		0x40	// Command specific option selector
+
+//RESPONSE FLAGS
+#define ISO15_RES_ERROR			0x01
+#define ISO15_RES_EXT			0x08	// Protocol Extention	
+
+// RESPONSE ERROR CODES
+#define ISO15_NOERROR			0x00
+#define ISO15_ERROR_CMD_NOT_SUP		0x01	// Command not supported
+#define ISO15_ERROR_CMD_NOT_REC		0x02	// Command not recognized (eg. parameter error)
+#define ISO15_ERROR_CMD_OPTION		0x03	// Command option not supported
+#define ISO15_ERROR_GENERIC		0x0F	// No additional Info about this error
+#define ISO15_ERROR_BLOCK_UNAVAILABLE	0x10	
+#define ISO15_ERROR_BLOCK_LOCKED_ALREADY	0x11	// cannot lock again
+#define ISO15_ERROR_BLOCK_LOCKED		0x12	// cannot be changed
+#define ISO15_ERROR_BLOCK_WRITE		0x13	// Writing was unsuccessful
+#define ISO15_ERROR_BLOCL_WRITELOCK	0x14	// Locking was unsuccessful
+
+// COMMAND CODES
+#define ISO15_CMD_INVENTORY			0x01
+#define ISO15_CMD_STAYQUIET			0x02
+#define ISO15_CMD_READ					0x20
+#define ISO15_CMD_WRITE					0x21
+#define ISO15_CMD_LOCK					0x22
+#define ISO15_CMD_READMULTI			0x23
+#define ISO15_CMD_WRITEMULTI			0x24
+#define ISO15_CMD_SELECT				0x25
+#define ISO15_CMD_RESET					0x26
+#define ISO15_CMD_WRITEAFI				0x27
+#define ISO15_CMD_LOCKAFI				0x28
+#define ISO15_CMD_WRITEDSFID			0x29
+#define ISO15_CMD_LOCKDSFID			0x2A
+#define ISO15_CMD_SYSINFO				0x2B
+#define ISO15_CMD_SECSTATUS			0x2C
+
+
+uint16_t Iso15693Crc(uint8_t *v, int n);
+int Iso15693AddCrc(uint8_t *req, int n);
+char* Iso15693sprintUID(char *target,uint8_t *uid);
+
+//-----------------------------------------------------------------------------
+// Map a sequence of octets (~layer 2 command) into the set of bits to feed
+// to the FPGA, to transmit that command to the tag.
+// Mode: highspeed && one subcarrier (ASK)
+//-----------------------------------------------------------------------------
+
+	// The sampling rate is 106.353 ksps/s, for T = 18.8 us
+
+	// SOF defined as
+	// 1) Unmodulated time of 56.64us
+	// 2) 24 pulses of 423.75khz
+	// 3) logic '1' (unmodulated for 18.88us followed by 8 pulses of 423.75khz)
+
+	static const int Iso15693FrameSOF[] = {
+		-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+		-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+		 1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+		 1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+		-1, -1, -1, -1,
+		-1, -1, -1, -1,
+		 1,  1,  1,  1,
+		 1,  1,  1,  1
+	};
+	static const int Iso15693Logic0[] = {
+		 1,  1,  1,  1,
+		 1,  1,  1,  1,
+		-1, -1, -1, -1,
+		-1, -1, -1, -1
+	};
+	static const int Iso15693Logic1[] = {
+		-1, -1, -1, -1,
+		-1, -1, -1, -1,
+		 1,  1,  1,  1,
+		 1,  1,  1,  1
+	};
+
+	// EOF defined as
+	// 1) logic '0' (8 pulses of 423.75khz followed by unmodulated for 18.88us)
+	// 2) 24 pulses of 423.75khz
+	// 3) Unmodulated time of 56.64us
+
+	static const int Iso15693FrameEOF[] = {
+		 1,  1,  1,  1,
+		 1,  1,  1,  1,
+		-1, -1, -1, -1,
+		-1, -1, -1, -1,
+		 1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+		 1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
+		-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+		-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
+	};
+
+
+#endif