text: /************************************************************************************
   * configs/stm32f407_minimum/src/stm32_bmp180.c
   *
   *   Copyright (C) 2015 Alan Carvalho de Assis. All rights reserved.
   *   Author: Alan Carvalho de Assis <acassis@gmail.com>
   *
   * 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 <nuttx/config.h>
  
  #include <errno.h>
  #include <debug.h>
  
  #include <nuttx/spi/spi.h>
  #include <nuttx/sensors/bmp180.h>
  
  #include "stm32.h"
  #include "stm32_i2c.h"
  #include "stm32f407_minimum.h"
  
  #if defined(CONFIG_I2C) && defined(CONFIG_SENSORS_BMP180)
  
  /************************************************************************************
   * Pre-processor Definitions
   ************************************************************************************/
  
  #define MPL115A_I2C_PORTNO 1   /* On I2C1 */
  
  /************************************************************************************
   * Public Functions
   ************************************************************************************/
  
  /************************************************************************************
   * Name: stm32_bmp180initialize
   *
   * Description:
   *   Initialize and register the MPL115A Pressure Sensor driver.
   *
   * Input Parameters:
   *   devpath - The full path to the driver to register. E.g., "/dev/press0"
   *
   * Returned Value:
   *   Zero (OK) on success; a negated errno value on failure.
   *
   ************************************************************************************/
  
  int stm32_bmp180initialize(FAR const char *devpath)
  {
    FAR struct i2c_master_s *i2c;
    int ret;
  
    sninfo("Initializing BMP180!\n");
  
    /* Initialize I2C */
  
    i2c = stm32_i2cbus_initialize(BMP180_I2C_PORTNO);
  
    if (!i2c)
      {
        return -ENODEV;
      }
  
    /* Then register the barometer sensor */
  
    ret = bmp180_register(devpath, i2c);
    if (ret < 0)
      {
        snerr("ERROR: Error registering BM180\n");
      }
  
    return ret;
  }
  
  #endif /* CONFIG_I2C && CONFIG_SENSORS_MPL115A && CONFIG_STM32_I2C1 */
  