/**************************************************************************** * boards/arm/stm32/common/src/stm32_bh1750fvi.c * * Copyright (C) 2016 Alan Carvalho de Assis. All rights reserved. * Author: Alan Carvalho de Assis * * 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 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 NuttX nor the names of its contributors may be * used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * COPYRIGHT OWNER 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. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include #include #include "stm32.h" #include "stm32_i2c.h" /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: stm32_bh1750initialize * * Description: * Initialize and register the MPL115A Pressure Sensor driver. * * Input Parameters: * devno - The device number, used to build the device path as /dev/lightN * busno - The I2C bus number * * Returned Value: * Zero (OK) on success; a negated errno value on failure. * ****************************************************************************/ int board_bh1750_initialize(int devno, int busno) { FAR struct i2c_master_s *i2c; int ret; sninfo("Initializing BH1750FVI!\n"); /* Initialize I2C */ i2c = stm32_i2cbus_initialize(busno); if (!i2c) { return -ENODEV; } /* Then register the barometer sensor */ ret = bh1750fvi_register(devpath, i2c, BH1750FVI_I2C_ADDR); if (ret < 0) { snerr("ERROR: Error registering BM180\n"); } return ret; }