84 lines
1.9 KiB
C
84 lines
1.9 KiB
C
/*
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* Copyright (c) 2016 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_DRIVERS_SENSOR_HMC5883L_HMC5883L_H_
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#define ZEPHYR_DRIVERS_SENSOR_HMC5883L_HMC5883L_H_
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#include <device.h>
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#include <misc/util.h>
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#include <zephyr/types.h>
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#include <gpio.h>
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#define SYS_LOG_DOMAIN "HMC5883L"
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#define SYS_LOG_LEVEL CONFIG_SYS_LOG_SENSOR_LEVEL
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#include <logging/sys_log.h>
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#define HMC5883L_I2C_ADDR 0x1E
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#define HMC5883L_REG_CONFIG_A 0x00
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#define HMC5883L_ODR_SHIFT 2
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#define HMC5883L_REG_CONFIG_B 0x01
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#define HMC5883L_GAIN_SHIFT 5
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#define HMC5883L_REG_MODE 0x02
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#define HMC5883L_MODE_CONTINUOUS 0
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#define HMC5883L_REG_DATA_START 0x03
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#define HMC5883L_REG_CHIP_ID 0x0A
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#define HMC5883L_CHIP_ID_A 'H'
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#define HMC5883L_CHIP_ID_B '4'
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#define HMC5883L_CHIP_ID_C '3'
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static const char * const hmc5883l_odr_strings[] = {
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"0.75", "1.5", "3", "7.5", "15", "30", "75"
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};
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static const char * const hmc5883l_fs_strings[] = {
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"0.88", "1.3", "1.9", "2.5", "4", "4.7", "5.6", "8.1"
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};
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static const u16_t hmc5883l_gain[] = {
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1370, 1090, 820, 660, 440, 390, 330, 230
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};
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struct hmc5883l_data {
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struct device *i2c;
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s16_t x_sample;
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s16_t y_sample;
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s16_t z_sample;
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u8_t gain_idx;
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#ifdef CONFIG_HMC5883L_TRIGGER
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struct device *gpio;
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struct gpio_callback gpio_cb;
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struct sensor_trigger data_ready_trigger;
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sensor_trigger_handler_t data_ready_handler;
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#if defined(CONFIG_HMC5883L_TRIGGER_OWN_THREAD)
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K_THREAD_STACK_MEMBER(thread_stack, CONFIG_HMC5883L_THREAD_STACK_SIZE);
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struct k_thread thread;
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struct k_sem gpio_sem;
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#elif defined(CONFIG_HMC5883L_TRIGGER_GLOBAL_THREAD)
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struct k_work work;
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struct device *dev;
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#endif
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#endif /* CONFIG_HMC5883L_TRIGGER */
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};
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#ifdef CONFIG_HMC5883L_TRIGGER
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int hmc5883l_trigger_set(struct device *dev,
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const struct sensor_trigger *trig,
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sensor_trigger_handler_t handler);
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int hmc5883l_init_interrupt(struct device *dev);
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#endif
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#endif /* __SENSOR_HMC5883L__ */
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