summaryrefslogtreecommitdiff
path: root/keyboards/pistachio_pro/lib/bme280.c
diff options
context:
space:
mode:
Diffstat (limited to 'keyboards/pistachio_pro/lib/bme280.c')
-rw-r--r--keyboards/pistachio_pro/lib/bme280.c255
1 files changed, 0 insertions, 255 deletions
diff --git a/keyboards/pistachio_pro/lib/bme280.c b/keyboards/pistachio_pro/lib/bme280.c
deleted file mode 100644
index f3dc231dc5..0000000000
--- a/keyboards/pistachio_pro/lib/bme280.c
+++ /dev/null
@@ -1,255 +0,0 @@
-/* Copyright 2021 rate
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-#include <stdint.h>
-#include "bme280.h"
-#include "i2c_master.h"
-
-#define BME280_ADDRESS (0x76<<1)
-
-#define BME280_REG_CALIB00 (0x88)
-#define BME280_REG_CALIB25 (0xA1)
-#define BME280_REG_CALIB26 (0xE1)
-#define BME280_REG_CTRL_HUM (0xF2)
-#define BME280_REG_CTRL_MEAS (0xF4)
-#define BME280_REG_CONFIG (0xF5)
-#define BME280_REG_PRESS_MSB (0xf7)
-
-#define I2C_BME280_TIMEOUT (20)
-
-/* BME280 configurator values */
-/* [2:0] Humidity oversampling
- * 000 Skipped
- * 001 oversampling x1
- * 010 oversampling x2
- * 011 oversampling x4
- * 100 oversampling x8
- * 101,others oversampling x16
- */
-#define BME280_CTRL_HUM_VAL (0x01)
-
-
-/* [7:5] Pressure oversampling
- * 000 Skipped
- * 001 oversampling x1
- * 010 oversampling x2
- * 011 oversampling x4
- * 100 oversampling x8
- * 101,others oversampling x16
- * [4:2] Temperature oversampling
- * 000 Skipped
- * 001 oversampling x1
- * 010 oversampling x2
- * 011 oversampling x4
- * 100 oversampling x8
- * 101,others oversampling x16
- * [1:0] Mode
- * 00 Sleep mode
- * 11 Normal mode
- */
-#define BME280_CTRL_MEAS_VAL (0x27)
-
-/* [7:5] t_standby[ms]
- * 000 0.5
- * 001 62.5
- * 010 125
- * 011 250
- * 100 500
- * 101 1000
- * 110 10
- * 111 20
- * [4:2] Filter corefficient
- * 000 Filter off
- * 001 2
- * 010 4
- * 011 8
- * 100,others 16
- * [0] SPI interface
- * 0 4-wire
- * 1 3-wire
- */
-#define BME280_CONFIG_VAL (0xA0)
-
-static void readTrim(void);
-static void readData(void);
-static int32_t calibration_T(int32_t adc_T);
-static uint32_t calibration_P(int32_t adc_P);
-static uint32_t calibration_H(int32_t adc_H);
-
-static uint32_t hum_raw,temp_raw,pres_raw;
-static uint16_t dig_T1;
-static int16_t dig_T2, dig_T3;
-static uint16_t dig_P1;
-static int16_t dig_P2, dig_P3, dig_P4, dig_P5, dig_P6, dig_P7, dig_P8, dig_P9;
-static uint8_t dig_H1, dig_H3;
-static int16_t dig_H2, dig_H4, dig_H5;
-static int8_t dig_H6;
-static int32_t t_fine;
-
-/* Private */
-static void readTrim(void) {
- uint8_t data[32];
-
- i2c_readReg(BME280_ADDRESS, BME280_REG_CALIB00, &data[0], 24, I2C_BME280_TIMEOUT);
- i2c_readReg(BME280_ADDRESS, BME280_REG_CALIB25, &data[25], 1, I2C_BME280_TIMEOUT);
- i2c_readReg(BME280_ADDRESS, BME280_REG_CALIB26, &data[25], 7, I2C_BME280_TIMEOUT);
-
- dig_T1 = (data[1] << 8) | data[0];
- dig_T2 = (data[3] << 8) | data[2];
- dig_T3 = (data[5] << 8) | data[4];
- dig_P1 = (data[7] << 8) | data[6];
- dig_P2 = (data[9] << 8) | data[8];
- dig_P3 = (data[11]<< 8) | data[10];
- dig_P4 = (data[13]<< 8) | data[12];
- dig_P5 = (data[15]<< 8) | data[14];
- dig_P6 = (data[17]<< 8) | data[16];
- dig_P7 = (data[19]<< 8) | data[18];
- dig_P8 = (data[21]<< 8) | data[20];
- dig_P9 = (data[23]<< 8) | data[22];
- dig_H1 = data[24];
- dig_H2 = (data[26]<< 8) | data[25];
- dig_H3 = data[27];
- dig_H4 = (data[28]<< 4) | (0x0F & data[29]);
- dig_H5 = (data[30] << 4) | ((data[29] >> 4) & 0x0F);
- dig_H6 = data[31];
-
- return;
-}
-
-static void readData(void) {
- uint8_t data[8];
-
- i2c_readReg(BME280_ADDRESS, 0xF7, &data[0], 8, I2C_BME280_TIMEOUT);
-
- pres_raw = data[0];
- pres_raw = (pres_raw<<8) | data[1];
- pres_raw = (pres_raw<<4) | (data[2] >> 4);
-
- temp_raw = data[3];
- temp_raw = (temp_raw<<8) | data[4];
- temp_raw = (temp_raw<<4) | (data[5] >> 4);
-
- hum_raw = data[6];
- hum_raw = (hum_raw << 8) | data[7];
-
- return;
-}
-
-static int32_t calibration_T(int32_t adc_T) {
- int32_t var1, var2, T;
- var1 = ((((adc_T >> 3) - ((int32_t)dig_T1<<1))) * ((int32_t)dig_T2)) >> 11;
- var2 = (((((adc_T >> 4) - ((int32_t)dig_T1)) * ((adc_T>>4) - ((int32_t)dig_T1))) >> 12) * ((int32_t)dig_T3)) >> 14;
-
- t_fine = var1 + var2;
- T = (t_fine * 5 + 128) >> 8;
-
- return T;
-}
-
-static uint32_t calibration_P(int32_t adc_P) {
- int32_t var1, var2;
- uint32_t P;
-
- var1 = (((int32_t)t_fine)>>1) - (int32_t)64000;
- var2 = (((var1>>2) * (var1>>2)) >> 11) * ((int32_t)dig_P6);
- var2 = var2 + ((var1*((int32_t)dig_P5))<<1);
- var2 = (var2>>2)+(((int32_t)dig_P4)<<16);
- var1 = (((dig_P3 * (((var1>>2)*(var1>>2)) >> 13)) >>3) + ((((int32_t)dig_P2) * var1)>>1))>>18;
- var1 = ((((32768+var1))*((int32_t)dig_P1))>>15);
- if (var1 == 0) {
- return 0;
- }
- P = (((uint32_t)(((int32_t)1048576)-adc_P)-(var2>>12)))*3125;
- if( P < 0x80000000 ) {
- P = (P << 1) / ((uint32_t) var1);
- } else {
- P = (P / (uint32_t)var1) * 2;
- }
- var1 = (((int32_t)dig_P9) * ((int32_t)(((P>>3) * (P>>3))>>13)))>>12;
- var2 = (((int32_t)(P>>2)) * ((int32_t)dig_P8))>>13;
- P = (uint32_t)((int32_t)P + ((var1 + var2 + dig_P7) >> 4));
-
- return P;
-}
-
-static uint32_t calibration_H(int32_t adc_H) {
- int32_t v_x1;
-
- v_x1 = (t_fine - ((int32_t)76800));
- v_x1 = (((((adc_H << 14) -(((int32_t)dig_H4) << 20) - (((int32_t)dig_H5) * v_x1)) +
- ((int32_t)16384)) >> 15) * (((((((v_x1 * ((int32_t)dig_H6)) >> 10) *
- (((v_x1 * ((int32_t)dig_H3)) >> 11) + ((int32_t) 32768))) >> 10) + (( int32_t)2097152)) *
- ((int32_t) dig_H2) + 8192) >> 14));
- v_x1 = (v_x1 - (((((v_x1 >> 15) * (v_x1 >> 15)) >> 7) * ((int32_t)dig_H1)) >> 4));
- v_x1 = (v_x1 < 0 ? 0 : v_x1);
- v_x1 = (v_x1 > 419430400 ? 419430400 : v_x1);
-
- return (uint32_t)(v_x1 >> 12);
-}
-
-/* Public */
-void bme280_init(void) {
- uint8_t ctrl_hum_reg;
- uint8_t ctrl_meas_reg;
- uint8_t config_reg;
-
- ctrl_hum_reg = BME280_CTRL_HUM_VAL;
- ctrl_meas_reg = BME280_CTRL_MEAS_VAL;
- config_reg = BME280_CONFIG_VAL;
-
- i2c_init();
- i2c_writeReg(BME280_ADDRESS, BME280_REG_CTRL_HUM, &ctrl_hum_reg, 1, I2C_BME280_TIMEOUT);
- i2c_writeReg(BME280_ADDRESS, BME280_REG_CTRL_MEAS, &ctrl_meas_reg, 1, I2C_BME280_TIMEOUT);
- i2c_writeReg(BME280_ADDRESS, BME280_REG_CONFIG, &config_reg, 1, I2C_BME280_TIMEOUT);
- readTrim();
-
- return;
-}
-
-void bme280_exec(void) {
- readData();
-
- return;
-}
-
-double bme280_getTemp(void) {
- double temp_act;
- int32_t temp_cal;
-
- temp_cal = calibration_T(temp_raw);
- temp_act = (double)temp_cal / 100.0;
-
- return temp_act;
-}
-
-double bme280_getPress(void) {
- double press_act;
- uint32_t press_cal;
-
- press_cal = calibration_P(pres_raw);
- press_act = (double)press_cal / 100.0;
-
- return press_act;
-}
-
-double bme280_getHum(void) {
- double hum_act;
- uint32_t hum_cal;
-
- hum_cal = calibration_H(hum_raw);
- hum_act = (double)hum_cal / 1024.0;
-
- return hum_act;
-}
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-03 07:49:08 +0000