drivers/misc/mediatek/barometer/BMP180/bmp180.h

   1 /* BOSCH Pressure Sensor Driver
   2  *
   3  * This software is licensed under the terms of the GNU General Public
   4  * License version 2, as published by the Free Software Foundation, and
   5  * may be copied, distributed, and modified under those terms.
   6  *
   7  * This program is distributed in the hope that it will be useful,
   8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  * GNU General Public License for more details.
  11  *
  12  */
  13
  14 #ifndef BOSCH_BARO_H
  15 #define BOSCH_BARO_H
  16
  17 #include <linux/ioctl.h>
  18 /*****************************************************
  19 |  sensor  |   chip id  |     7-bit i2c address      |
  20 -----------------------------------------------------|
  21 |  bmp180  |    0x55    |           0x77             |
  22 *****************************************************/
  23
  24 /* apply low pass filter on output */
  25 /*#define CONFIG_BMP_LOWPASS*/
  26 /*#define CONFIG_ID_TEMPERATURE*/
  27 /*#define CONFIG_I2C_BASIC_FUNCTION*/
  28
  29 #define BMP_DRIVER_VERSION "V1.2"
  30
  31 #define BMP_DEV_NAME        "bmp180"
  32
  33 #define C_MAX_FIR_LENGTH (32)
  34 #define MAX_SENSOR_NAME  (32)
  35 #define BMP_DATA_NUM            1
  36 #define BMP_PRESSURE            0
  37 #define BMP_BUFSIZE                     128
  38
  39 /* common definition */
  40 #define BMP_GET_BITSLICE(regvar, bitname)\
  41         ((regvar & bitname##__MSK) >> bitname##__POS)
  42
  43 #define BMP_SET_BITSLICE(regvar, bitname, val)\
  44         ((regvar & ~bitname##__MSK) | ((val<<bitname##__POS)&bitname##__MSK))
  45
  46
  47 #define BMP_CHIP_ID_REG 0xD0
  48
  49 /*********************************[BMP180]*************************************/
  50 /* chip id */
  51 #define BMP180_CHIP_ID 0x55
  52
  53 /* i2c address */
  54 #define BMP180_I2C_ADDRESS 0x77
  55
  56 /* calibration data */
  57 #define BMP180_CALIBRATION_DATA_START 0xAA
  58 #define BMP180_CALIBRATION_DATA_LENGTH  11      /* 16 bit values */
  59
  60 /* oversampling */
  61 #define BMP180_OVERSAMPLING_1X               0x00
  62 #define BMP180_OVERSAMPLING_2X               0x01
  63 #define BMP180_OVERSAMPLING_4X               0x02
  64 #define BMP180_OVERSAMPLING_8X               0x03
  65
  66 #define BMP180_CTRLMEAS_REG                  0xF4  /* Ctrl Measure Register */
  67
  68 #define BMP180_CTRLMEAS_REG_OSRSP__POS              6
  69 #define BMP180_CTRLMEAS_REG_OSRSP__MSK              0xC0
  70 #define BMP180_CTRLMEAS_REG_OSRSP__LEN              2
  71 #define BMP180_CTRLMEAS_REG_OSRSP__REG              BMP180_CTRLMEAS_REG
  72
  73 /* data */
  74 #define BMP180_TEMP_MEASUREMENT         0x2E
  75 #define BMP180_PRESSURE_MEASUREMENT     0x34
  76 #define BMP180_TEMP_CONVERSION_TIME     (5 + 5)
  77 #define BMP180_CONVERSION_REGISTER_MSB  0xF6
  78
  79 #define BMP180_CTRLMEAS_REG_MC__POS              0
  80 #define BMP180_CTRLMEAS_REG_MC__MSK              0x3F
  81 #define BMP180_CTRLMEAS_REG_MC__LEN              6
  82 #define BMP180_CTRLMEAS_REG_MC__REG              BMP180_CTRLMEAS_REG
  83
  84 #endif/* BOSCH_BARO_H */