1 /* ST Microelectronics IIS2MDC 3-axis magnetometer sensor 2 * 3 * Copyright (c) 2020 STMicroelectronics 4 * 5 * SPDX-License-Identifier: Apache-2.0 6 * 7 * Datasheet: 8 * https://www.st.com/resource/en/datasheet/iis2mdc.pdf 9 */ 10 11 #ifndef __MAG_IIS2MDC_H 12 #define __MAG_IIS2MDC_H 13 14 #include <zephyr/drivers/gpio.h> 15 #include <zephyr/drivers/sensor.h> 16 #include <zephyr/kernel.h> 17 #include <zephyr/sys/util.h> 18 #include <stmemsc.h> 19 #include "iis2mdc_reg.h" 20 21 #if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) 22 #include <zephyr/drivers/spi.h> 23 #endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) */ 24 25 #if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) 26 #include <zephyr/drivers/i2c.h> 27 #endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) */ 28 29 struct iis2mdc_dev_config { 30 union { 31 #if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) 32 struct i2c_dt_spec i2c; 33 #endif 34 #if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) 35 struct spi_dt_spec spi; 36 #endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) */ 37 }; 38 int (*bus_init)(const struct device *dev); 39 #ifdef CONFIG_IIS2MDC_TRIGGER 40 const struct gpio_dt_spec gpio_drdy; 41 #endif /* CONFIG_IIS2MDC_TRIGGER */ 42 }; 43 44 /* Sensor data */ 45 struct iis2mdc_data { 46 const struct device *dev; 47 int16_t mag[3]; 48 int32_t temp_sample; 49 50 stmdev_ctx_t *ctx; 51 52 #if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) 53 stmdev_ctx_t ctx_i2c; 54 #endif 55 #if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) 56 stmdev_ctx_t ctx_spi; 57 #endif 58 59 #ifdef CONFIG_IIS2MDC_TRIGGER 60 struct gpio_callback gpio_cb; 61 62 sensor_trigger_handler_t handler_drdy; 63 const struct sensor_trigger *trig_drdy; 64 65 #if defined(CONFIG_IIS2MDC_TRIGGER_OWN_THREAD) 66 K_KERNEL_STACK_MEMBER(thread_stack, CONFIG_IIS2MDC_THREAD_STACK_SIZE); 67 struct k_thread thread; 68 struct k_sem gpio_sem; 69 #elif defined(CONFIG_IIS2MDC_TRIGGER_GLOBAL_THREAD) 70 struct k_work work; 71 #endif /* CONFIG_IIS2MDC_TRIGGER_GLOBAL_THREAD */ 72 #endif /* CONFIG_IIS2MDC_TRIGGER */ 73 }; 74 75 int iis2mdc_spi_init(const struct device *dev); 76 int iis2mdc_i2c_init(const struct device *dev); 77 78 #ifdef CONFIG_IIS2MDC_TRIGGER 79 int iis2mdc_init_interrupt(const struct device *dev); 80 int iis2mdc_trigger_set(const struct device *dev, 81 const struct sensor_trigger *trig, 82 sensor_trigger_handler_t handler); 83 #endif /* CONFIG_IIS2MDC_TRIGGER */ 84 85 #endif /* __MAG_IIS2MDC_H */ 86
