1 /* ST Microelectronics IIS328DQ 3-axis accelerometer driver 2 * 3 * Copyright (c) 2020 STMicroelectronics 4 * Copyright (c) 2024 SILA Embedded Solutions GmbH 5 * 6 * SPDX-License-Identifier: Apache-2.0 7 * 8 * Datasheet: 9 * https://www.st.com/resource/en/datasheet/iis328dq.pdf 10 */ 11 12 #ifndef ZEPHYR_DRIVERS_SENSOR_IIS328DQ_IIS328DQ_H_ 13 #define ZEPHYR_DRIVERS_SENSOR_IIS328DQ_IIS328DQ_H_ 14 15 #include <zephyr/drivers/gpio.h> 16 #include <zephyr/sys/util.h> 17 #include <zephyr/drivers/sensor.h> 18 #include <stmemsc.h> 19 #include "iis328dq_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 /** 30 * struct iis328dq_dev_config - iis328dq hw configuration 31 * @bus_name: Pointer to bus master identifier. 32 * @pm: Power mode (lis2dh_powermode). 33 * @irq_dev_name: Pointer to GPIO PORT identifier. 34 * @irq_pin: GPIO pin number connected to sensor int pin. 35 * @drdy_int: Sensor drdy int (int1/int2). 36 */ 37 struct iis328dq_config { 38 stmdev_ctx_t ctx; 39 union { 40 #if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) 41 const struct i2c_dt_spec i2c; 42 #endif 43 #if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) 44 const struct spi_dt_spec spi; 45 #endif 46 } stmemsc_cfg; 47 uint8_t range; 48 #ifdef CONFIG_IIS328DQ_TRIGGER 49 const struct gpio_dt_spec gpio_int1; 50 const struct gpio_dt_spec gpio_int2; 51 /* interrupt pad to be used for DRDY interrupts, or -1 if not configured */ 52 int8_t drdy_pad; 53 #ifdef CONFIG_IIS328DQ_THRESHOLD 54 /* interrupt pad to be used for threshold interrupts, or -1 if not configured */ 55 int8_t threshold_pad; 56 #endif /* CONFIG_IIS328DQ_THRESHOLD */ 57 #endif /* CONFIG_IIS328DQ_TRIGGER */ 58 }; 59 60 /* sensor data */ 61 struct iis328dq_data { 62 const struct device *dev; 63 int16_t acc[3]; 64 65 /* sensitivity in mg/LSB */ 66 uint8_t gain; 67 68 #ifdef CONFIG_IIS328DQ_TRIGGER 69 struct gpio_callback int1_cb; 70 struct gpio_callback int2_cb; 71 sensor_trigger_handler_t drdy_handler; 72 const struct sensor_trigger *drdy_trig; 73 #ifdef CONFIG_IIS328DQ_THRESHOLD 74 sensor_trigger_handler_t threshold_handler; 75 const struct sensor_trigger *threshold_trig; 76 #endif /* CONFIG_IIS328DQ_THRESHOLD */ 77 #if defined(CONFIG_IIS328DQ_TRIGGER_OWN_THREAD) 78 K_KERNEL_STACK_MEMBER(thread_stack, CONFIG_IIS328DQ_THREAD_STACK_SIZE); 79 struct k_thread thread; 80 struct k_sem gpio_sem; 81 #elif defined(CONFIG_IIS328DQ_TRIGGER_GLOBAL_THREAD) 82 struct k_work work; 83 #endif /* CONFIG_IIS328DQ_TRIGGER_GLOBAL_THREAD */ 84 #endif /* CONFIG_IIS328DQ_TRIGGER */ 85 }; 86 87 #ifdef CONFIG_IIS328DQ_TRIGGER 88 int iis328dq_init_interrupt(const struct device *dev); 89 int iis328dq_trigger_set(const struct device *dev, const struct sensor_trigger *trig, 90 sensor_trigger_handler_t handler); 91 #endif /* CONFIG_IIS328DQ_TRIGGER */ 92 93 #endif /* ZEPHYR_DRIVERS_SENSOR_IIS328DQ_IIS328DQ_H_ */ 94
