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+/***************************************************************************//**
+ \file halW1.h
+
+ \brief Declarations of 1-wire hardware-dependent module.
+
+ \author
+ Atmel Corporation: http://www.atmel.com \n
+ Support email: avr@atmel.com
+
+ Copyright (c) 2008-2011, Atmel Corporation. All rights reserved.
+ Licensed under Atmel's Limited License Agreement (BitCloudTM).
+
+ \internal
+ History:
+ 10/12/07 A. Khromykh - Created
+ ******************************************************************************/
+/******************************************************************************
+ * WARNING: CHANGING THIS FILE MAY AFFECT CORE FUNCTIONALITY OF THE STACK. *
+ * EXPERT USERS SHOULD PROCEED WITH CAUTION. *
+ ******************************************************************************/
+
+#ifndef _HALW1_H
+#define _HALW1_H
+
+/******************************************************************************
+ Includes section
+******************************************************************************/
+#include <inttypes.h>
+
+/******************************************************************************
+ Types section
+******************************************************************************/
+/** \brief i2c 1-wire status */
+typedef enum
+{
+ /** \brief There is no device on the bus */
+ W1_NO_DEVICE_STATUS,
+ /** \brief At least one device is on the bus */
+ W1_SUCCESS_STATUS,
+ /** \brief Invalid CRC was read during the device search operation */
+ W1_INVALID_CRC
+} W1Status_t;
+
+/***************************************************************************//**
+\brief Reads byte from the bus.
+
+\return
+ byte read from the bus.
+*******************************************************************************/
+uint8_t halReadW1(void);
+
+/***************************************************************************//**
+\brief Reads bit from the bus.
+
+\return
+ Read bit is placed to position of last significant bit.
+*******************************************************************************/
+uint8_t halReadW1Bit(void);
+
+/***************************************************************************//**
+\brief Writes bit to the bus.
+
+\param[in]
+ value - to write. The bit is placed to position of last significant bit.
+*******************************************************************************/
+void halWriteW1bit(uint8_t value);
+
+/***************************************************************************//**
+\brief Writes byte to the bus
+
+\param[in]
+ value - byte to write.
+*******************************************************************************/
+void halWriteW1(uint8_t value);
+
+/***************************************************************************//**
+\brief Resets all devices connected to the bus.
+
+\return
+ 0 - there are some devices at the bus. \n
+ 1 - there are not any devices at the bus.
+*******************************************************************************/
+uint8_t halResetW1(void);
+
+/**************************************************************************//**
+\brief Performs delay in microseconds
+
+\param[in]
+ delay - number of microseconds to be delay
+******************************************************************************/
+void __delay_us(uint8_t delay);
+
+#endif /* _HALW1_H */