copy project from century 2in6 esl project

COMPONENTS/drivers_ext/mcp4725/mcp4725.h

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+/**
+ * Copyright (c) 2016 - 2017, Nordic Semiconductor ASA
+ * 
+ * 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, except as embedded into a Nordic
+ *    Semiconductor ASA integrated circuit in a product or a software update for
+ *    such product, 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.
+ * 
+ * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ * 
+ * 4. This software, with or without modification, must only be used with a
+ *    Nordic Semiconductor ASA integrated circuit.
+ * 
+ * 5. Any software provided in binary form under this license must not be reverse
+ *    engineered, decompiled, modified and/or disassembled.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA 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.
+ * 
+ */
+
+#ifndef MCP4725_H
+#define MCP4725_H
+
+/*lint ++flb "Enter library region" */
+
+#include <stdbool.h>
+#include <stdint.h>
+#include "app_util_platform.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** @file
+* @brief MCP4725 digital DAC driver.
+*
+*
+* @defgroup mcp4725 MCP4725 digital DAC driver
+* @{
+* @ingroup ext_drivers
+* @brief MCP4725 digital DAC driver.
+*/
+
+/**
+ * @brief Function for setting up the driver.
+ *
+ * @return Values returned by @ref nrf_drv_twi_init.
+ */
+ret_code_t mcp4725_setup(void);
+
+
+/**
+ * @brief Function for setting new value to DAC.
+ *
+ * @param[in] val               12-bit value. Base on it voltage is set (Vout = (val/4095) * Vcc).
+ * @param[in] write_eeprom      Defines if value will be written to DAC only or to EEPROM memmory also.
+ *
+ * @return Values returned by @ref nrf_drv_twi_tx.
+ */
+ret_code_t mcp4725_set_voltage(uint16_t val, bool write_eeprom);
+
+/**
+ * @brief Function for checking if DAC is busy saving data in EEPROM.
+ *
+ * @retval true         If DAC is busy.
+ * @retval false        If Dac is not busy.
+ */
+bool mcp4725_is_busy(void);
+
+/**
+ *@}
+ **/
+
+/*lint --flb "Leave library region" */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif //MCP4725_H