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Diffstat (limited to 'driver/baro_bmp280.h')
| -rw-r--r-- | driver/baro_bmp280.h | 224 |
1 files changed, 0 insertions, 224 deletions
diff --git a/driver/baro_bmp280.h b/driver/baro_bmp280.h deleted file mode 100644 index ee95bd886f..0000000000 --- a/driver/baro_bmp280.h +++ /dev/null @@ -1,224 +0,0 @@ -/* Copyright 2016 The Chromium OS Authors. All rights reserved. - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ -/** \mainpage -* -**************************************************************************** -* Copyright (C) 2012 - 2015 Bosch Sensortec GmbH -* -* File : bmp280.h -* -* Date : 2015/03/27 -* -* Revision : 2.0.4(Pressure and Temperature compensation code revision is 1.1) -* -* Usage: Sensor Driver for BMP280 sensor -* -**************************************************************************** -* -* \section License -* -* Redistribution and use in source and binary forms, with or without -* modification, are permitted provided that the following conditions are met: -* -* Redistributions of source code must retain the above copyright -* notice, this list of conditions and the following disclaimer. -* -* 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. -* -* Neither the name of the copyright holder nor the names of the -* 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 COPYRIGHT HOLDER -* 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 -* -* The information provided is believed to be accurate and reliable. -* The copyright holder assumes no responsibility -* for the consequences of use -* of such information nor for any infringement of patents or -* other rights of third parties which may result from its use. -* No license is granted by implication or otherwise under any patent or -* patent rights of the copyright holder. -**************************************************************************/ -/* BMP280 pressure and temperature module for Chrome EC */ - -#ifndef __CROS_EC_BARO_BMP280_H -#define __CROS_EC_BARO_BMP280_H - -/* - * The addr field of barometer_sensor for I2C: - * - * +-------------------------------+---+ - * | 7 bit i2c address | 0 | - * +-------------------------------+---+ - */ - -/* - * Bit 1 of 7-bit address: 0 - If SDO is connected to GND - * Bit 1 of 7-bit address: 1 - If SDO is connected to Vddio - */ -#define BMP280_I2C_ADDRESS1_FLAGS 0x76 -#define BMP280_I2C_ADDRESS2_FLAGS 0x77 - -/* - * CHIP ID - */ -#define BMP280_CHIP_ID 0x58 -/************************************************/ -/* CALIBRATION PARAMETERS DEFINITION */ -/************************************************/ - -#define BMP280_TEMPERATURE_CALIB_DIG_T1_LSB_REG 0x88 - -/************************************************/ -/* REGISTER ADDRESS DEFINITION */ -/************************************************/ -#define BMP280_CHIP_ID_REG 0xD0 -#define BMP280_RST_REG 0xE0 /*Softreset Register */ -#define BMP280_STAT_REG 0xF3 /*Status Register */ -#define BMP280_CTRL_MEAS_REG 0xF4 /*Ctrl Measure Register */ -#define BMP280_CONFIG_REG 0xF5 /*Configuration Register */ -#define BMP280_PRESSURE_MSB_REG 0xF7 /*Pressure MSB Register */ -#define BMP280_PRESSURE_LSB_REG 0xF8 /*Pressure LSB Register */ -#define BMP280_PRESSURE_XLSB_REG 0xF9 /*Pressure XLSB Register */ -/************************************************/ -/* POWER MODE DEFINITION */ -/************************************************/ -/* Sensor Specific constants */ -#define BMP280_SLEEP_MODE 0x00 -#define BMP280_FORCED_MODE 0x01 -#define BMP280_NORMAL_MODE 0x03 -#define BMP280_SOFT_RESET_CODE 0xB6 -/************************************************/ -/* STANDBY TIME DEFINITION */ -/************************************************/ -#define BMP280_STANDBY_TIME_1_MS 0x00 -#define BMP280_STANDBY_TIME_63_MS 0x01 -#define BMP280_STANDBY_TIME_125_MS 0x02 -#define BMP280_STANDBY_TIME_250_MS 0x03 -#define BMP280_STANDBY_TIME_500_MS 0x04 -#define BMP280_STANDBY_TIME_1000_MS 0x05 -#define BMP280_STANDBY_TIME_2000_MS 0x06 -#define BMP280_STANDBY_TIME_4000_MS 0x07 -/************************************************/ -/* OVERSAMPLING DEFINITION */ -/************************************************/ -#define BMP280_OVERSAMP_SKIPPED 0x00 -#define BMP280_OVERSAMP_1X 0x01 -#define BMP280_OVERSAMP_2X 0x02 -#define BMP280_OVERSAMP_4X 0x03 -#define BMP280_OVERSAMP_8X 0x04 -#define BMP280_OVERSAMP_16X 0x05 -/************************************************/ -/* DEFINITIONS FOR ARRAY SIZE OF DATA */ -/************************************************/ -#define BMP280_PRESSURE_DATA_SIZE 3 -#define BMP280_DATA_FRAME_SIZE 6 -#define BMP280_CALIB_DATA_SIZE 24 -/*******************************************************/ -/* SAMPLING PERIOD COMPUTATION CONSTANT */ -/*******************************************************/ -#define BMP280_STANDBY_CNT 8 -#define T_INIT_MAX (20) /* (20/16 = 1.25ms) */ -#define T_MEASURE_PER_OSRS_MAX (37) /* (37/16 = 2.31ms) */ -#define T_SETUP_PRESSURE_MAX (10) /* (10/16 = 0.62ms) */ - -/* - * This is the measurement time required for pressure and temp - */ -#define BMP280_COMPUTE_TIME \ - ((T_INIT_MAX + T_MEASURE_PER_OSRS_MAX * \ - ((BIT(BMP280_OVERSAMP_TEMP) >> 1) + \ - (BIT(BMP280_OVERSAMP_PRES) >> 1)) + \ - (BMP280_OVERSAMP_PRES ? T_SETUP_PRESSURE_MAX : 0) + 15) / 16) - -/* - * These values are selected as per Bosch recommendation for - * standard handheld devices, with temp sensor not being used - */ -#define BMP280_OVERSAMP_PRES BMP280_OVERSAMP_4X -#define BMP280_OVERSAMP_TEMP BMP280_OVERSAMP_SKIPPED -/*******************************************************/ -/* GET DRIVER DATA */ -/*******************************************************/ -#define BMP280_GET_DATA(_s) \ - ((struct bmp280_drv_data_t *)(_s)->drv_data) - -/* Min and Max sampling frequency in mHz based on x4 oversampling used */ -/* FIXME - verify how chip is setup to make sure MAX is correct, manual says - * "Typical", not Max. - */ -#define BMP280_BARO_MIN_FREQ 75000 -#define BMP280_BARO_MAX_FREQ 87000 -#if (CONFIG_EC_MAX_SENSOR_FREQ_MILLIHZ <= BMP280_BARO_MAX_FREQ) -#error "EC too slow for accelerometer" -#endif - -/**************************************************************/ -/* STRUCTURE and ENUM DEFINITIONS */ -/**************************************************************/ - -/* - * struct bmp280_calib_param_t - Holds all device specific - * calibration parameters - * - * @dig_T1 to dig_T3: calibration Temp data - * @dig_P1 to dig_P9: calibration Pressure data - * @t_fine: calibration t_fine data - * - */ -struct bmp280_calib_param_t { - uint16_t dig_T1; - int16_t dig_T2; - int16_t dig_T3; - uint16_t dig_P1; - int16_t dig_P2; - int16_t dig_P3; - int16_t dig_P4; - int16_t dig_P5; - int16_t dig_P6; - int16_t dig_P7; - int16_t dig_P8; - int16_t dig_P9; - - int32_t t_fine; -}; - -/* - * struct bmp280_t - This structure holds BMP280 initialization parameters - * @calib_param: calibration data - * @rate: frequency, in mHz. - * @range: bit offset to fit data in 16 bit or less. - */ -struct bmp280_drv_data_t { - - struct bmp280_calib_param_t calib_param; - uint16_t rate; - uint16_t range; -}; -#define BMP280_RATE_SHIFT 1 - -extern const struct accelgyro_drv bmp280_drv; - -#ifdef CONFIG_CMD_I2C_STRESS_TEST_ACCEL -extern struct i2c_stress_test_dev bmp280_i2c_stress_test_dev; -#endif - -#endif |