1 /* 2 * Copyright (c) 2016 Intel Corporation 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #ifndef ZEPHYR_DRIVERS_SENSOR_HMC5883L_HMC5883L_H_ 8 #define ZEPHYR_DRIVERS_SENSOR_HMC5883L_HMC5883L_H_ 9 10 #include <zephyr/device.h> 11 #include <zephyr/sys/util.h> 12 #include <zephyr/types.h> 13 #include <zephyr/drivers/i2c.h> 14 #include <zephyr/drivers/gpio.h> 15 #include <zephyr/kernel.h> 16 17 #define HMC5883L_REG_CONFIG_A 0x00 18 #define HMC5883L_ODR_SHIFT 2 19 20 #define HMC5883L_REG_CONFIG_B 0x01 21 #define HMC5883L_GAIN_SHIFT 5 22 23 #define HMC5883L_REG_MODE 0x02 24 #define HMC5883L_MODE_CONTINUOUS 0 25 26 #define HMC5883L_REG_DATA_START 0x03 27 28 #define HMC5883L_REG_CHIP_ID 0x0A 29 #define HMC5883L_CHIP_ID_A 'H' 30 #define HMC5883L_CHIP_ID_B '4' 31 #define HMC5883L_CHIP_ID_C '3' 32 33 static const char *const hmc5883l_odr_strings[] = { 34 "0.75", "1.5", "3", "7.5", "15", "30", "75" 35 }; 36 37 static const char *const hmc5883l_fs_strings[] = { 38 "0.88", "1.3", "1.9", "2.5", "4", "4.7", "5.6", "8.1" 39 }; 40 41 static const uint16_t hmc5883l_gain[] = { 42 1370, 1090, 820, 660, 440, 390, 330, 230 43 }; 44 45 struct hmc5883l_data { 46 int16_t x_sample; 47 int16_t y_sample; 48 int16_t z_sample; 49 uint8_t gain_idx; 50 51 #ifdef CONFIG_HMC5883L_TRIGGER 52 const struct device *dev; 53 struct gpio_callback gpio_cb; 54 55 const struct sensor_trigger *data_ready_trigger; 56 sensor_trigger_handler_t data_ready_handler; 57 58 #if defined(CONFIG_HMC5883L_TRIGGER_OWN_THREAD) 59 K_KERNEL_STACK_MEMBER(thread_stack, CONFIG_HMC5883L_THREAD_STACK_SIZE); 60 struct k_thread thread; 61 struct k_sem gpio_sem; 62 #elif defined(CONFIG_HMC5883L_TRIGGER_GLOBAL_THREAD) 63 struct k_work work; 64 #endif 65 66 #endif /* CONFIG_HMC5883L_TRIGGER */ 67 }; 68 69 struct hmc5883l_config { 70 struct i2c_dt_spec i2c; 71 #ifdef CONFIG_HMC5883L_TRIGGER 72 struct gpio_dt_spec int_gpio; 73 #endif 74 }; 75 76 #ifdef CONFIG_HMC5883L_TRIGGER 77 int hmc5883l_trigger_set(const struct device *dev, 78 const struct sensor_trigger *trig, 79 sensor_trigger_handler_t handler); 80 81 int hmc5883l_init_interrupt(const struct device *dev); 82 #endif 83 84 #endif /* __SENSOR_HMC5883L__ */ 85
