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Diffstat (limited to 'src/temperature/bmp085.h')
| -rw-r--r-- | src/temperature/bmp085.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/src/temperature/bmp085.h b/src/temperature/bmp085.h new file mode 100644 index 0000000..7ed440b --- /dev/null +++ b/src/temperature/bmp085.h @@ -0,0 +1,81 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2020 Matthias P. Braendli, Maximilien Cuony + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. +*/ + +#pragma once +#include <stdint.h> + +#define BMP085_ADDRESS (0x77) + +typedef enum { + BMP085_REGISTER_CAL_AC1 = 0xAA, + BMP085_REGISTER_CAL_AC2 = 0xAC, + BMP085_REGISTER_CAL_AC3 = 0xAE, + BMP085_REGISTER_CAL_AC4 = 0xB0, + BMP085_REGISTER_CAL_AC5 = 0xB2, + BMP085_REGISTER_CAL_AC6 = 0xB4, + BMP085_REGISTER_CAL_B1 = 0xB6, + BMP085_REGISTER_CAL_B2 = 0xB8, + BMP085_REGISTER_CAL_MB = 0xBA, + BMP085_REGISTER_CAL_MC = 0xBC, + BMP085_REGISTER_CAL_MD = 0xBE, + BMP085_REGISTER_CHIPID = 0xD0, + BMP085_REGISTER_VERSION = 0xD1, + BMP085_REGISTER_SOFTRESET = 0xE0, + BMP085_REGISTER_CONTROL = 0xF4, + BMP085_REGISTER_TEMPDATA = 0xF6, + BMP085_REGISTER_PRESSUREDATA = 0xF6, +} bmp085_register_address_t; + +typedef enum { + BMP085_COMMAND_READTEMP = 0x2E, + BMP085_COMMAND_READPRESSURE = 0x34 +} bmp085_command_t; + +typedef enum { + BMP085_MODE_ULTRALOWPOWER = 0, + BMP085_MODE_STANDARD = 1, + BMP085_MODE_HIGHRES = 2, + BMP085_MODE_ULTRAHIGHRES = 3 +} bmp085_mode_t; + + +typedef struct { + int16_t ac1; + int16_t ac2; + int16_t ac3; + uint16_t ac4; + uint16_t ac5; + uint16_t ac6; + int16_t b1; + int16_t b2; + int16_t mb; + int16_t mc; + int16_t md; +} bmp085_calib_data_t; + +// Returns 1 on success +int bmp085_init(); + +// Returns 1 on success +int bmp085_get_temp_pressure(int32_t *temperature_deciDeg, int32_t *pressure_Pa); |