/* * Author: Jon Trulson * Copyright (c) 2016 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. */ #include "sht1x.h" #include "upm_fti.h" /** * This file implements the Function Table Interface (FTI) for this sensor */ const char upm_sht1x_name[] = "SHT1X"; const char upm_sht1x_description[] = "SHT1X Temperature and Humidity Sensor"; const upm_protocol_t upm_sht1x_protocol[] = {UPM_GPIO, UPM_GPIO}; const upm_sensor_t upm_sht1x_category[] = {UPM_TEMPERATURE, UPM_HUMIDITY}; // forward declarations const void* upm_sht1x_get_ft(upm_sensor_t sensor_type); void* upm_sht1x_init_name(); void upm_sht1x_close(void *dev); upm_result_t upm_sht1x_get_humidity(void *dev, float *value); upm_result_t upm_sht1x_get_temperature(void *dev, float *value, upm_temperature_u unit); static const upm_sensor_ft ft = { .upm_sensor_init_name = upm_sht1x_init_name, .upm_sensor_close = upm_sht1x_close, }; static const upm_temperature_ft tft = { .upm_temperature_get_value = upm_sht1x_get_temperature, }; static const upm_humidity_ft hft = { .upm_humidity_get_value = upm_sht1x_get_humidity, }; const void* upm_sht1x_get_ft(upm_sensor_t sensor_type) { switch(sensor_type) { case UPM_SENSOR: return &ft; case UPM_HUMIDITY: return &hft; case UPM_TEMPERATURE: return &tft; default: return NULL; } } void* upm_sht1x_init_name() { return NULL; } void upm_sht1x_close(void *dev) { sht1x_close((sht1x_context)dev); } upm_result_t upm_sht1x_get_humidity(void *dev, float *value) { upm_result_t rv; if ((rv = sht1x_update((sht1x_context)dev))) return rv; *value = sht1x_get_humidity((sht1x_context)dev); return UPM_SUCCESS; } upm_result_t upm_sht1x_get_temperature(void *dev, float *value, upm_temperature_u unit) { upm_result_t rv; if ((rv = sht1x_update((sht1x_context)dev))) return rv; // always in C float temp = sht1x_get_temperature((sht1x_context)dev); switch (unit) { case CELSIUS: *value = temp; return UPM_SUCCESS; case KELVIN: *value = temp + 273.15; return UPM_SUCCESS; case FAHRENHEIT: *value = temp * (9.0/5.0) + 32.0; return UPM_SUCCESS; } return UPM_SUCCESS; }