| /* 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 { |
| s16_t i16bit[3]; |
| u8_t u8bit[6]; |
| }; |
| |
| union axis1bit16_t { |
| s16_t i16bit; |
| u8_t u8bit[2]; |
| }; |
| |
| struct lis2mdl_config { |
| char *master_dev_name; |
| int (*bus_init)(struct device *dev); |
| #ifdef CONFIG_LIS2MDL_TRIGGER |
| char *gpio_name; |
| u32_t gpio_pin; |
| u8_t gpio_flags; |
| #endif /* CONFIG_LIS2MDL_TRIGGER */ |
| #if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) |
| u16_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; |
| u8_t cs_gpio; |
| #endif /* DT_INST_SPI_DEV_HAS_CS_GPIOS(0) */ |
| #endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) */ |
| }; |
| |
| /* Sensor data */ |
| struct lis2mdl_data { |
| struct device *bus; |
| u16_t i2c_addr; |
| s16_t mag[3]; |
| s32_t temp_sample; |
| |
| stmdev_ctx_t *ctx; |
| |
| #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 |
| struct device *gpio; |
| struct gpio_callback gpio_cb; |
| |
| sensor_trigger_handler_t handler_drdy; |
| |
| #if defined(CONFIG_LIS2MDL_TRIGGER_OWN_THREAD) |
| K_THREAD_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; |
| struct device *dev; |
| #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(struct device *dev); |
| int lis2mdl_i2c_init(struct device *dev); |
| |
| #ifdef CONFIG_LIS2MDL_TRIGGER |
| int lis2mdl_init_interrupt(struct device *dev); |
| int lis2mdl_trigger_set(struct device *dev, |
| const struct sensor_trigger *trig, |
| sensor_trigger_handler_t handler); |
| #endif /* CONFIG_LIS2MDL_TRIGGER */ |
| |
| #endif /* __MAG_LIS2MDL_H */ |