Merge remote-tracking branch 'refs/remotes/xyz/master'

1 files changed, 220 insertions, 0 deletions

diff --git a/nrfdemo/src/bme680/bme680.h b/nrfdemo/src/bme680/bme680.h
new file mode 100644
index 0000000..125aea1
--- /dev/null
+++ b/nrfdemo/src/bme680/bme680.h
@@ -0,0 +1,220 @@
+/*
+ * Copyright (c) 2018 Bosch Sensortec GmbH
+ * Copyright (c) 2022, Leonard Pollak
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef __ZEPHYR_DRIVERS_SENSOR_BME680_H__
+#define __ZEPHYR_DRIVERS_SENSOR_BME680_H__
+
+#include <zephyr/types.h>
+#include <zephyr/device.h>
+#include <zephyr/devicetree.h>
+#include <zephyr/drivers/spi.h>
+#include <zephyr/drivers/i2c.h>
+
+#define DT_DRV_COMPAT bosch_bme680
+
+#define BME680_BUS_SPI DT_ANY_INST_ON_BUS_STATUS_OKAY(spi)
+#define BME680_BUS_I2C DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c)
+
+union bme680_bus {
+#if BME680_BUS_SPI
+	struct spi_dt_spec spi;
+#endif
+#if BME680_BUS_I2C
+	struct i2c_dt_spec i2c;
+#endif
+};
+
+typedef int (*bme680_bus_check_fn)(const union bme680_bus *bus);
+typedef int (*bme680_reg_read_fn)(const struct device *dev,
+				  uint8_t start, uint8_t *buf, int size);
+typedef int (*bme680_reg_write_fn)(const struct device *dev,
+				   uint8_t reg, uint8_t val);
+
+struct bme680_bus_io {
+	bme680_bus_check_fn check;
+	bme680_reg_read_fn read;
+	bme680_reg_write_fn write;
+};
+
+#if BME680_BUS_SPI
+#define BME680_SPI_OPERATION (SPI_WORD_SET(8) | SPI_TRANSFER_MSB | SPI_MODE_CPOL \
+		| SPI_MODE_CPHA | SPI_OP_MODE_MASTER)
+extern const struct bme680_bus_io bme680_bus_io_spi;
+#endif
+
+#if BME680_BUS_I2C
+extern const struct bme680_bus_io bme680_bus_io_i2c;
+#endif
+
+struct bme680_config {
+	union bme680_bus bus;
+	const struct bme680_bus_io *bus_io;
+};
+
+#define BME680_CHIP_ID                  0x61
+
+#define BME680_LEN_FIELD                15
+#define BME680_LEN_COEFF_ALL            42
+#define BME680_LEN_COEFF1               23
+#define BME680_LEN_COEFF2               14
+#define BME680_LEN_COEFF3               5
+
+#define BME680_REG_COEFF3               0x00
+#define BME680_REG_FIELD0               0x1d
+#define BME680_REG_IDAC_HEAT0           0x50
+#define BME680_REG_RES_HEAT0            0x5A
+#define BME680_REG_GAS_WAIT0            0x64
+#define BME680_REG_SHD_HEATR_DUR        0x6E
+#define BME680_REG_CTRL_GAS_0           0x70
+#define BME680_REG_CTRL_GAS_1           0x71
+#define BME680_REG_CTRL_HUM             0x72
+#define BME680_REG_CTRL_MEAS            0x74
+#define BME680_REG_CONFIG               0x75
+#define BME680_REG_STATUS               0x73
+#define BME680_REG_UNIQUE_ID            0x83
+#define BME680_REG_COEFF1               0x8a
+#define BME680_REG_COEFF2               0xe1
+#define BME680_REG_CHIP_ID		0xd0
+#define BME680_REG_SOFT_RESET           0xe0
+
+#define BME680_MSK_NEW_DATA             0x80
+#define BME680_MSK_GAS_RANGE            0x0f
+#define BME680_MSK_RH_RANGE             0x30
+#define BME680_MSK_RANGE_SW_ERR         0xf0
+#define BME680_MSK_HEATR_STAB           0x10
+
+#define BME680_SPI_MEM_PAGE_MSK         0x10
+#define BME680_SPI_MEM_PAGE_POS         4
+#define BME680_SPI_READ_BIT             0x80
+#define BME680_SPI_WRITE_MSK            0x7f
+
+#if defined CONFIG_BME680_TEMP_OVER_1X
+#define BME680_TEMP_OVER                (1 << 5)
+#elif defined CONFIG_BME680_TEMP_OVER_2X
+#define BME680_TEMP_OVER                (2 << 5)
+#elif defined CONFIG_BME680_TEMP_OVER_4X
+#define BME680_TEMP_OVER                (3 << 5)
+#elif defined CONFIG_BME680_TEMP_OVER_8X
+#define BME680_TEMP_OVER                (4 << 5)
+#elif defined CONFIG_BME680_TEMP_OVER_16X
+#define BME680_TEMP_OVER                (5 << 5)
+#endif
+
+#if defined CONFIG_BME680_PRESS_OVER_1X
+#define BME680_PRESS_OVER               (1 << 2)
+#elif defined CONFIG_BME680_PRESS_OVER_2X
+#define BME680_PRESS_OVER               (2 << 2)
+#elif defined CONFIG_BME680_PRESS_OVER_4X
+#define BME680_PRESS_OVER               (3 << 2)
+#elif defined CONFIG_BME680_PRESS_OVER_8X
+#define BME680_PRESS_OVER               (4 << 2)
+#elif defined CONFIG_BME680_PRESS_OVER_16X
+#define BME680_PRESS_OVER               (5 << 2)
+#endif
+
+#if defined CONFIG_BME680_HUMIDITY_OVER_1X
+#define BME680_HUMIDITY_OVER            1
+#elif defined CONFIG_BME680_HUMIDITY_OVER_2X
+#define BME680_HUMIDITY_OVER            2
+#elif defined CONFIG_BME680_HUMIDITY_OVER_4X
+#define BME680_HUMIDITY_OVER            3
+#elif defined CONFIG_BME680_HUMIDITY_OVER_8X
+#define BME680_HUMIDITY_OVER            4
+#elif defined CONFIG_BME680_HUMIDITY_OVER_16X
+#define BME680_HUMIDITY_OVER            5
+#endif
+
+#if defined CONFIG_BME680_HEATR_TEMP_LP
+#define BME680_HEATR_TEMP                               320
+#elif defined CONFIG_BME680_HEATR_TEMP_ULP
+#define BME680_HEATR_TEMP                               400
+#endif
+
+#if defined CONFIG_BME680_HEATR_DUR_LP
+#define BME680_HEATR_DUR_MS                             197
+#elif defined CONFIG_BME680_HEATR_DUR_ULP
+#define BME680_HEATR_DUR_MS                             1943
+#endif
+
+#if defined CONFIG_BME680_FILTER_OFF
+#define BME680_FILTER                   0
+#elif defined CONFIG_BME680_FILTER_2
+#define BME680_FILTER                   (1 << 2)
+#elif defined CONFIG_BME680_FILTER_4
+#define BME680_FILTER                   (2 << 2)
+#elif defined CONFIG_BME680_FILTER_8
+#define BME680_FILTER                   (3 << 2)
+#elif defined CONFIG_BME680_FILTER_16
+#define BME680_FILTER                   (4 << 2)
+#elif defined CONFIG_BME680_FILTER_32
+#define BME680_FILTER                   (5 << 2)
+#elif defined CONFIG_BME680_FILTER_64
+#define BME680_FILTER                   (6 << 2)
+#elif defined CONFIG_BME680_FILTER_128
+#define BME680_FILTER                   (7 << 2)
+#endif
+
+#define BME680_MODE_SLEEP               0
+#define BME680_MODE_FORCED              1
+
+#define BME680_CTRL_MEAS_VAL    (BME680_PRESS_OVER | BME680_TEMP_OVER \
+				 | BME680_MODE_FORCED)
+#define BME680_CONFIG_VAL               BME680_FILTER
+#define BME680_CTRL_GAS_1_VAL   0x10
+
+#define BME680_CONCAT_BYTES(msb, lsb) (((uint16_t)msb << 8) | (uint16_t)lsb)
+
+struct bme680_data {
+	/* Compensation parameters. */
+	uint16_t par_h1;
+	uint16_t par_h2;
+	int8_t par_h3;
+	int8_t par_h4;
+	int8_t par_h5;
+	uint8_t par_h6;
+	int8_t par_h7;
+	int8_t par_gh1;
+	int16_t par_gh2;
+	int8_t par_gh3;
+	uint16_t par_t1;
+	int16_t par_t2;
+	int8_t par_t3;
+	uint16_t par_p1;
+	int16_t par_p2;
+	int8_t par_p3;
+	int16_t par_p4;
+	int16_t par_p5;
+	int8_t par_p6;
+	int8_t par_p7;
+	int16_t par_p8;
+	int16_t par_p9;
+	uint8_t par_p10;
+	uint8_t res_heat_range;
+	int8_t res_heat_val;
+	int8_t range_sw_err;
+
+	/* Calculated sensor values. */
+	int32_t calc_temp;
+	uint32_t calc_press;
+	uint32_t calc_humidity;
+	uint32_t calc_gas_resistance;
+
+	/* Additional information */
+	uint8_t new_data;
+	uint8_t heatr_stab;
+
+	/* Carryover between temperature and pressure/humidity compensation. */
+	int32_t t_fine;
+
+	uint8_t chip_id;
+
+#if BME680_BUS_SPI
+	uint8_t mem_page;
+#endif
+};
+
+#endif /* __ZEPHYR_DRIVERS_SENSOR_BME680_H__ */