88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
/****************************************************************************
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* boards/arm/stm32/common/src/stm32_bh1750.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <errno.h>
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#include <debug.h>
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#include <stdio.h>
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#include <nuttx/spi/spi.h>
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#include <arch/board/board.h>
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#include <nuttx/sensors/bh1750fvi.h>
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#include "stm32.h"
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#include "stm32_i2c.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: stm32_bh1750initialize
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*
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* Description:
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* Initialize and register the BH1750FVI Ambient Light driver.
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*
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* Input Parameters:
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* devno - The device number, used to build the device path as /dev/lightN
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* busno - The I2C bus number
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno value on failure.
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*
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****************************************************************************/
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int board_bh1750_initialize(int devno, int busno)
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{
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struct i2c_master_s *i2c;
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int ret;
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sninfo("Initializing BH1750FVI!\n");
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/* Initialize I2C */
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i2c = stm32_i2cbus_initialize(busno);
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if (!i2c)
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{
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return -ENODEV;
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}
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/* Then register the barometer sensor */
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ret = bh1750fvi_register(devpath, i2c, BH1750FVI_I2C_ADDR);
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if (ret < 0)
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{
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snerr("ERROR: Error registering BH1750FVI\n");
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}
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return ret;
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}
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