116 lines
3.6 KiB
C
116 lines
3.6 KiB
C
/****************************************************************************
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* include/nuttx/sensors/ms58xx.h
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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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#ifndef __INCLUDE_NUTTX_SENSORS_MS58XX_H
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#define __INCLUDE_NUTTX_SENSORS_MS58XX_H
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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 <nuttx/sensors/ioctl.h>
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#if defined(CONFIG_I2C) && defined(CONFIG_SENSORS_MS58XX)
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************
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* Prerequisites:
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*
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* CONFIG_I2C
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* Enables support for I2C drivers
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* CONFIG_SENSORS_MS58XX
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* Enables support for the MS58XX driver
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* CONFIG_MS58XX_VDD
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*/
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/* I2C Address **************************************************************/
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#define MS58XX_ADDR0 0x76
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#define MS58XX_ADDR1 0x77
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/****************************************************************************
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* Public Types
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****************************************************************************/
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enum ms58xx_model_e
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{
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MS58XX_MODEL_MS5803_02 = 0,
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MS58XX_MODEL_MS5803_05 = 1,
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MS58XX_MODEL_MS5803_07 = 2,
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MS58XX_MODEL_MS5803_14 = 3,
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MS58XX_MODEL_MS5803_30 = 4,
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MS58XX_MODEL_MS5805_02 = 5,
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MS58XX_MODEL_MS5806_02 = 6,
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MS58XX_MODEL_MS5837_30 = 7
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};
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struct ms58xx_measure_s
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{
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int32_t temperature; /* in Degree x100 */
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int32_t pressure; /* in mBar x10 */
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};
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struct i2c_master_s;
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Name: ms58xx_register
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*
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* Description:
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* Register the MS58XX character device as 'devpath'.
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*
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* Input Parameters:
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* devpath - The full path to the driver to register, e.g., "/dev/press0".
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* i2c - An I2C driver instance.
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* addr - The I2C address of the MS58XX.
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* osr - The oversampling ratio.
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* model - The MS58XX model.
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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 ms58xx_register(FAR const char *devpath, FAR struct i2c_master_s *i2c,
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uint8_t addr, uint16_t osr, enum ms58xx_model_e model);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* CONFIG_I2C && CONFIG_SENSORS_MS58XX */
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#endif /* __INCLUDE_NUTTX_SENSORS_MS58XX_H */
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