Diff: noos_mbed/drivers/temperature/adt7420/adt7420.h

Revision:

0:e8a1ba50c46b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/noos_mbed/drivers/temperature/adt7420/adt7420.h	Thu Jan 14 19:12:57 2021 +0530
@@ -0,0 +1,153 @@
+/***************************************************************************//**
+ *   @file   adt7420.h
+ *   @brief  Header file of ADT7420 Driver.
+ *   @author DBogdan (dragos.bogdan@analog.com)
+********************************************************************************
+ * Copyright 2012(c) Analog Devices, Inc.
+ *
+ * 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 following disclaimer.
+ *  - 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.
+ *  - Neither the name of Analog Devices, Inc. nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *  - The use of this software may or may not infringe the patent rights
+ *    of one or more patent holders.  This license does not release you
+ *    from the requirement that you obtain separate licenses from these
+ *    patent holders to use this software.
+ *  - Use of the software either in source or binary form, must be run
+ *    on or directly connected to an Analog Devices Inc. component.
+ *
+ * THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT,
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, INTELLECTUAL PROPERTY RIGHTS, 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 __ADT7420_H__
+#define __ADT7420_H__
+
+/******************************************************************************/
+/***************************** Include Files **********************************/
+/******************************************************************************/
+#include <stdint.h>
+#include "platform_drivers.h"
+
+/******************************************************************************/
+/************************** ADT7420 Definitions *******************************/
+/******************************************************************************/
+
+/* ADT7420 address */
+#define ADT7420_A0_PIN(x)	(((x) & 0x1) << 0) // I2C Serial Bus Address Selection Pin
+#define ADT7420_A1_PIN(x)	(((x) & 0x1) << 1) // I2C Serial Bus Address Selection Pin
+#define ADT7420_ADDRESS(x,y)	(0x48 + ADT7420_A1_PIN(x) + ADT7420_A0_PIN(y))
+
+/* ADT7420 registers */
+#define ADT7420_REG_TEMP_MSB		0x00 // Temperature value MSB
+#define ADT7420_REG_TEMP_LSB		0x01 // Temperature value LSB
+#define ADT7420_REG_STATUS		0x02 // Status
+#define ADT7420_REG_CONFIG		0x03 // Configuration
+#define ADT7420_REG_T_HIGH_MSB		0x04 // Temperature HIGH setpoint MSB
+#define ADT7420_REG_T_HIGH_LSB		0x05 // Temperature HIGH setpoint LSB
+#define ADT7420_REG_T_LOW_MSB		0x06 // Temperature LOW setpoint MSB
+#define ADT7420_REG_T_LOW_LSB		0x07 // Temperature LOW setpoint LSB
+#define ADT7420_REG_T_CRIT_MSB		0x08 // Temperature CRIT setpoint MSB
+#define ADT7420_REG_T_CRIT_LSB		0x09 // Temperature CRIT setpoint LSB
+#define ADT7420_REG_HIST		0x0A // Temperature HYST setpoint
+#define ADT7420_REG_ID			0x0B // ID
+#define ADT7420_REG_RESET		0x2F // Software reset
+
+/* ADT7420_REG_STATUS definition */
+#define ADT7420_STATUS_T_LOW		(1 << 4)
+#define ADT7420_STATUS_T_HIGH		(1 << 5)
+#define ADT7420_STATUS_T_CRIT		(1 << 6)
+#define ADT7420_STATUS_RDY		(1 << 7)
+
+/* ADT7420_REG_CONFIG definition */
+#define ADT7420_CONFIG_FAULT_QUEUE(x)	(x & 0x3)
+#define ADT7420_CONFIG_CT_POL		(1 << 2)
+#define ADT7420_CONFIG_INT_POL		(1 << 3)
+#define ADT7420_CONFIG_INT_CT_MODE	(1 << 4)
+#define ADT7420_CONFIG_OP_MODE(x)	((x & 0x3) << 5)
+#define ADT7420_CONFIG_RESOLUTION	(1 << 7)
+
+/* ADT7420_CONFIG_FAULT_QUEUE(x) options */
+#define ADT7420_FAULT_QUEUE_1_FAULT	0
+#define ADT7420_FAULT_QUEUE_2_FAULTS	1
+#define ADT7420_FAULT_QUEUE_3_FAULTS	2
+#define ADT7420_FAULT_QUEUE_4_FAULTS	3
+
+/* ADT7420_CONFIG_OP_MODE(x) options */
+#define ADT7420_OP_MODE_CONT_CONV	0
+#define ADT7420_OP_MODE_ONE_SHOT	1
+#define ADT7420_OP_MODE_1_SPS		2
+#define ADT7420_OP_MODE_SHUTDOWN	3
+
+/* ADT7420 default ID */
+#define ADT7420_DEFAULT_ID		0xCB
+
+/******************************************************************************/
+/*************************** Types Declarations *******************************/
+/******************************************************************************/
+
+struct adt7420_dev {
+	/* I2C */
+	i2c_desc	*i2c_desc;
+	/* Device Settings */
+	uint8_t		resolution_setting;
+};
+
+struct adt7420_init_param {
+	/* I2C */
+	i2c_init_param	i2c_init;
+	/* Device Settings */
+	uint8_t		resolution_setting;
+};
+
+/******************************************************************************/
+/************************ Functions Declarations ******************************/
+/******************************************************************************/
+
+/*! Reads the value of a register. */
+uint8_t adt7420_get_register_value(struct adt7420_dev *dev,
+				   uint8_t register_address);
+
+/*! Sets the value of a register. */
+void adt7420_set_register_value(struct adt7420_dev *dev,
+				uint8_t register_address,
+				uint8_t register_value);
+
+/*! Initializes the comm. peripheral and checks if the device is present. */
+int32_t adt7420_init(struct adt7420_dev **device,
+		     struct adt7420_init_param init_param);
+
+/* Free the resources allocated by adt7420_init(). */
+int32_t adt7420_remove(struct adt7420_dev *dev);
+
+/*! Resets the ADT7420. */
+void adt7420_reset(struct adt7420_dev *dev);
+
+/*! Sets the operational mode for ADT7420. */
+void adt7420_set_operation_mode(struct adt7420_dev *dev,
+				uint8_t mode);
+
+/*! Sets the resolution for ADT7420. */
+void adt7420_set_resolution(struct adt7420_dev *dev,
+			    uint8_t resolution);
+
+/*! Reads the temperature data and converts it to Celsius degrees. */
+float adt7420_get_temperature(struct adt7420_dev *dev);
+
+#endif	/* __ADT7420_H__ */