/* * Author: Abhishek Malik * Copyright (c) 2017 Intel Corporation. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #pragma once #include #include #include #include #include "upm.h" #include "mraa/i2c.h" #ifdef __cplusplus extern "C" { #endif #define ABPDRRT005PG2A5_ADDRESS 0x28 #define OUTPUT_10_PERCENT_COUNT 1638 #define OUTPUT_90_PERCENT_COUNT 14746 #define ABPDRRT005PG2A5_PRESSURE_MAX 5 #define ABPDRRT005PG2A5_PRESSURE_MIN 0 /** * @file abpdrrt005pg2a5.h * @library abpdrrt005pg2a5 * @brief C API for the ABPDRRT005PG2A5 Honeywell Pressure Sensor * * @include abpdrrt005pg2a5.c */ typedef struct _abpdrrt005pg2a5_context { mraa_i2c_context i2c; uint8_t i2c_bus_number; uint8_t address; } *abpdrrt005pg2a5_context; /** * ABPDRRT005PG2A5 Initialization function * * @param bus I2C bus to use * @return device context pointer */ abpdrrt005pg2a5_context abpdrrt005pg2a5_init(uint8_t bus, uint8_t dev_address); /** * ABPDRRT005PG2A5 Close function * * @param dev abpdrrt005pg2a5_context pointer */ void abpdrrt005pg2a5_close(abpdrrt005pg2a5_context dev); /** * Function to get the pressure in psi * The datasheet provides a way to calculate the pressure * in psi. * * @return upm_result_t UPM success/error code */ upm_result_t abpdrrt005pg2a5_get_pressure_psi(abpdrrt005pg2a5_context dev, float* pressure_psi); /** * Function to get the pressure in pascal * This is calculated using a conversion function. * * @return upm_result_t UPM success/error code */ upm_result_t abpdrrt005pg2a5_get_pressure_pascal(abpdrrt005pg2a5_context dev, float* pressure_pascal); #ifdef __cplusplus } #endif