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/* ST Microelectronics LIS2MDL 3-axis magnetometer sensor * * Copyright (c) 2018-2019 STMicroelectronics * * SPDX-License-Identifier: Apache-2.0 * * Datasheet: * https://www.st.com/resource/en/datasheet/lis2mdl.pdf */ #ifndef __MAG_LIS2MDL_H #define __MAG_LIS2MDL_H #include <drivers/spi.h> #include <drivers/gpio.h> #include <drivers/sensor.h> #include <sys/util.h> #include "lis2mdl_reg.h" union axis3bit16_t { int16_t i16bit[3]; uint8_t u8bit[6]; }; union axis1bit16_t { int16_t i16bit; uint8_t u8bit[2]; }; struct lis2mdl_config { char *master_dev_name; int (*bus_init)(const struct device *dev); bool cancel_offset; bool single_mode; #ifdef CONFIG_LIS2MDL_TRIGGER char *gpio_name; uint32_t gpio_pin; uint8_t gpio_flags; #endif /* CONFIG_LIS2MDL_TRIGGER */ #if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) uint16_t i2c_slv_addr; #elif DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) struct spi_config spi_conf; #if DT_INST_SPI_DEV_HAS_CS_GPIOS(0) const char *gpio_cs_port; uint8_t cs_gpio; uint8_t cs_gpio_flags; #endif /* DT_INST_SPI_DEV_HAS_CS_GPIOS(0) */ #endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) */ }; /* Sensor data */ struct lis2mdl_data { const struct device *dev; const struct device *bus; uint16_t i2c_addr; int16_t mag[3]; int32_t temp_sample; stmdev_ctx_t *ctx; #ifdef CONFIG_PM_DEVICE uint32_t power_state; #endif struct k_sem fetch_sem; #if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) stmdev_ctx_t ctx_i2c; #elif DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) stmdev_ctx_t ctx_spi; #endif #ifdef CONFIG_LIS2MDL_TRIGGER const struct device *gpio; struct gpio_callback gpio_cb; sensor_trigger_handler_t handler_drdy; #if defined(CONFIG_LIS2MDL_TRIGGER_OWN_THREAD) K_KERNEL_STACK_MEMBER(thread_stack, CONFIG_LIS2MDL_THREAD_STACK_SIZE); struct k_thread thread; struct k_sem gpio_sem; #elif defined(CONFIG_LIS2MDL_TRIGGER_GLOBAL_THREAD) struct k_work work; #endif /* CONFIG_LIS2MDL_TRIGGER_GLOBAL_THREAD */ #endif /* CONFIG_LIS2MDL_TRIGGER */ #if DT_INST_SPI_DEV_HAS_CS_GPIOS(0) struct spi_cs_control cs_ctrl; #endif /* DT_INST_SPI_DEV_HAS_CS_GPIOS(0) */ }; int lis2mdl_spi_init(const struct device *dev); int lis2mdl_i2c_init(const struct device *dev); #ifdef CONFIG_LIS2MDL_TRIGGER int lis2mdl_init_interrupt(const struct device *dev); int lis2mdl_trigger_set(const struct device *dev, const struct sensor_trigger *trig, sensor_trigger_handler_t handler); #endif /* CONFIG_LIS2MDL_TRIGGER */ #endif /* __MAG_LIS2MDL_H */