nuttx/boards/arm/stm32/common/src/stm32_mlx90614.c
Alin Jerpelea a255a2794b boards: Alan Carvalho de Assis: update licenses to Apache
Alan Carvalho de Assis has submitted the SGA and we can migrate the
 licenses to Apache.

Gregory Nutt has submitted the SGA and we can migrate the licenses
 to Apache.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-03-19 23:01:46 -07:00

90 lines
2.8 KiB
C

/****************************************************************************
* boards/arm/stm32/common/src/stm32_mlx90614.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <errno.h>
#include <debug.h>
#include <stdio.h>
#include <nuttx/i2c/i2c_master.h>
#include <nuttx/sensors/mlx90614.h>
#include "stm32.h"
#include "stm32_i2c.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define MLX90614_ADDRESS 0x5a /* Default I2C Address, can be chanced in EEPROM */
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_mlx90614_initialize
*
* Description:
* Initialize and register the MLX90614 Infrared Thermometer.
*
* Input Parameters:
* devno - The device number, used to build the device path as /dev/thermN
* busno - The I2C bus number
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
****************************************************************************/
int board_mlx90614_initialize(int devno, int busno)
{
FAR struct i2c_master_s *i2c;
char devpath[12];
int ret;
sninfo("Initializing MLX90614!\n");
/* Initialize I2C */
i2c = stm32_i2cbus_initialize(busno);
if (!i2c)
{
return -ENODEV;
}
/* Then register the light sensor */
snprintf(devpath, 12, "/dev/therm%d", devno);
ret = mlx90614_register(devpath, i2c, MLX90614_ADDRESS);
if (ret < 0)
{
snerr("ERROR: Error registering BM180\n");
}
return ret;
}