drivers/sensors/mpl115a2/mpl115a2.h

   1 /**************************************************************************/
   2 /*!
   3     @file     mpl115a2.h
   4     @author   K. Townsend (microBuilder.eu)
   5
   6     @section LICENSE
   7
   8     Software License Agreement (BSD License)
   9
  10     Copyright (c) 2012, K. Townsend
  11     All rights reserved.
  12
  13     Redistribution and use in source and binary forms, with or without
  14     modification, are permitted provided that the following conditions are met:
  15     1. Redistributions of source code must retain the above copyright
  16     notice, this list of conditions and the following disclaimer.
  17     2. Redistributions in binary form must reproduce the above copyright
  18     notice, this list of conditions and the following disclaimer in the
  19     documentation and/or other materials provided with the distribution.
  20     3. Neither the name of the copyright holders nor the
  21     names of its contributors may be used to endorse or promote products
  22     derived from this software without specific prior written permission.
  23
  24     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
  25     EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  26     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  27     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
  28     DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  29     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  30     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  31     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  32     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  33     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  34 */
  35 /**************************************************************************/
  36
  37 #ifndef _MPL115A2_H_
  38 #define _MPL115A2_H_
  39
  40 #include "projectconfig.h"
  41 #include "core/i2c/i2c.h"
  42
  43 #define MPL115A2_ADDRESS              (0xC0)    // 1100 000 shifted left 1 bit = 0xC0
  44 #define MPL115A2_READBIT              (0x01)
  45
  46 enum
  47 {
  48   MPL115A2_REGISTER_PRESSURE_MSB     = 0x00,
  49   MPL115A2_REGISTER_PRESSURE_LSB     = 0x01,
  50   MPL115A2_REGISTER_TEMP_MSB         = 0x02,
  51   MPL115A2_REGISTER_TEMP_LSB         = 0x03,
  52   MPL115A2_REGISTER_A0_COEFF_MSB     = 0x04,
  53   MPL115A2_REGISTER_A0_COEFF_LSB     = 0x05,
  54   MPL115A2_REGISTER_B1_COEFF_MSB     = 0x06,
  55   MPL115A2_REGISTER_B1_COEFF_LSB     = 0x07,
  56   MPL115A2_REGISTER_B2_COEFF_MSB     = 0x08,
  57   MPL115A2_REGISTER_B2_COEFF_LSB     = 0x09,
  58   MPL115A2_REGISTER_C12_COEFF_MSB    = 0x0A,
  59   MPL115A2_REGISTER_C12_COEFF_LSB    = 0x0B,
  60   MPL115A2_REGISTER_STARTCONVERSION  = 0x12
  61 };
  62
  63 typedef enum
  64 {
  65   MPL115A2_ERROR_OK = 0,               // Everything executed normally
  66   MPL115A2_ERROR_I2CINIT,              // Unable to initialise I2C
  67   MPL115A2_ERROR_I2CBUSY,              // I2C already in use
  68   MPL115A2_ERROR_LAST
  69 }
  70 mpl115a2Error_t;
  71
  72 mpl115a2Error_t mpl115a2Init(void);
  73 mpl115a2Error_t mpl115a2GetPressure(float *pressure);
  74
  75 #endif
  76
  77