text: /****************************************************************************
   * include/nuttx/sensors/ms58xx.h
   *
   *   Copyright (C) 2015 Omni Hoverboards Inc. All rights reserved.
   *   Author: Paul Alexander Patience <paul-a.patience@polymtl.ca>
   *
   * 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.
   *
   ****************************************************************************/
  
  #ifndef __INCLUDE_NUTTX_SENSORS_MS58XX
  #define __INCLUDE_NUTTX_SENSORS_MS58XX
  
  /****************************************************************************
   * Included Files
   ****************************************************************************/
  
  #include <nuttx/config.h>
  #include <nuttx/sensors/ioctl.h>
  
  #if defined(CONFIG_I2C) && defined(CONFIG_SENSORS_MS58XX)
  
  /****************************************************************************
   * Pre-processor Definitions
   ****************************************************************************/
  /* Configuration ************************************************************
   * Prerequisites:
   *
   * CONFIG_I2C
   *   Enables support for I2C drivers
   * CONFIG_SENSORS_MS58XX
   *   Enables support for the MS58XX driver
   * CONFIG_MS58XX_VDD
   */
  
  /* I2C Address **************************************************************/
  
  #define MS58XX_ADDR0       0x76
  #define MS58XX_ADDR1       0x77
  
  /****************************************************************************
   * Public Types
   ****************************************************************************/
  
  enum ms58xx_model_e
  {
    MS58XX_MODEL_MS5803_02 = 0,
    MS58XX_MODEL_MS5803_05 = 1,
    MS58XX_MODEL_MS5803_07 = 2,
    MS58XX_MODEL_MS5803_14 = 3,
    MS58XX_MODEL_MS5803_30 = 4,
    MS58XX_MODEL_MS5805_02 = 5,
    MS58XX_MODEL_MS5806_02 = 6,
    MS58XX_MODEL_MS5837_30 = 7
  };
  
  struct ms58xx_measure_s
  {
    int32_t temperature;  /* in Degree   x100    */
    int32_t pressure;     /* in mBar     x10     */
  };
  
  struct i2c_master_s;
  
  /****************************************************************************
   * Public Function Prototypes
   ****************************************************************************/
  
  #ifdef __cplusplus
  #define EXTERN extern "C"
  extern "C"
  {
  #else
  #define EXTERN extern
  #endif
  
  /****************************************************************************
   * Name: ms58xx_register
   *
   * Description:
   *   Register the MS58XX character device as 'devpath'.
   *
   * Input Parameters:
   *   devpath - The full path to the driver to register, e.g., "/dev/press0".
   *   i2c     - An I2C driver instance.
   *   addr    - The I2C address of the MS58XX.
   *   osr     - The oversampling ratio.
   *   model   - The MS58XX model.
   *
   * Returned Value:
   *   Zero (OK) on success; a negated errno value on failure.
   *
   ****************************************************************************/
  
  int ms58xx_register(FAR const char *devpath, FAR struct i2c_master_s *i2c,
                      uint8_t addr, uint16_t osr, enum ms58xx_model_e model);
  
  #undef EXTERN
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* CONFIG_I2C && CONFIG_SENSORS_MS58XX */
  #endif /* __INCLUDE_NUTTX_SENSORS_MS58XX */
  