--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/1wire.h	Sun Jul 11 00:45:50 2004 +0930
@@ -0,0 +1,63 @@
+/* Copyright (c) 2004
+ *      Daniel O'Connor <darius@dons.net.au>.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS 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.
+ */
+
+int		OWTouchReset(void);
+void		OWWriteBit(int bit);
+int		OWReadBit(void);
+void		OWWriteByte(uint8_t data);
+int		OWReadByte(void);
+int		OWTouchByte(uint8_t data);
+void		OWBlock(uint8_t *data, int len);
+int		OWFirst(uint8_t *ROM, uint8_t do_reset, uint8_t alarm_only);
+int		OWNext(uint8_t *ROM, uint8_t do_reset, uint8_t alarm_only);
+void		OWCRC(uint8_t x, uint8_t *crc);
+void		OWSendCmd(uint8_t *ROM, uint8_t cmd);
+
+#define OWIREOUTPORT		PORTC
+#define OWIREOUTPIN		0
+
+#define OWIREINPORT		PINC
+#define OWIREDDR		DDRC
+#define OWIREINPIN		OWIREOUTPIN
+
+/* General 1 wire commands */
+#define OW_OVRDRV_SKIP_CMD	0x3c
+#define OW_SEARCH_ALRM_CMD	0xec
+#define OW_SEARCH_ROM_CMD	0xf0
+#define OW_READ_ROM_CMD		0x33
+#define OW_MATCH_ROM_CMD	0x55
+#define OW_SKIP_ROM_CMD		0xcc
+
+/* DS1820 commands */
+#define OW_CONVERTT_CMD		0x44
+#define OW_RD_SCR_CMD		0xbe
+#define OW_WR_SCR_CMD		0x4e
+#define OW_CPY_SCR_CMD		0x48
+#define OW_RECALL_CMD		0xb8
+#define OW_RD_PSU_CMD		0xb4
+
+/* Family codes */
+#define OW_FAMILY_ROM		0x09
+#define OW_FAMILY_TEMP		0x10