1 /* ST Microelectronics IIS2ICLX 2-axis accelerometer sensor driver 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/iis2iclx.pdf 9 */ 10 11 #ifndef ZEPHYR_DRIVERS_SENSOR_IIS2ICLX_IIS2ICLX_H_ 12 #define ZEPHYR_DRIVERS_SENSOR_IIS2ICLX_IIS2ICLX_H_ 13 14 #include <drivers/sensor.h> 15 #include <zephyr/types.h> 16 #include <drivers/gpio.h> 17 #include <sys/util.h> 18 #include <stmemsc.h> 19 #include "iis2iclx_reg.h" 20 21 #if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) 22 #include <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 <drivers/i2c.h> 27 #endif /* DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) */ 28 29 #define IIS2ICLX_EN_BIT 0x01 30 #define IIS2ICLX_DIS_BIT 0x00 31 32 /* Accel sensor sensitivity grain is 15 ug/LSB */ 33 #define GAIN_UNIT_XL (15LL) 34 35 #define SENSOR_PI_DOUBLE (SENSOR_PI / 1000000.0) 36 #define SENSOR_DEG2RAD_DOUBLE (SENSOR_PI_DOUBLE / 180) 37 #define SENSOR_G_DOUBLE (SENSOR_G / 1000000.0) 38 39 struct iis2iclx_config { 40 stmdev_ctx_t ctx; 41 union { 42 #if DT_ANY_INST_ON_BUS_STATUS_OKAY(i2c) 43 const struct stmemsc_cfg_i2c i2c; 44 #endif 45 #if DT_ANY_INST_ON_BUS_STATUS_OKAY(spi) 46 const struct stmemsc_cfg_spi spi; 47 #endif 48 } stmemsc_cfg; 49 uint8_t odr; 50 uint8_t range; 51 #ifdef CONFIG_IIS2ICLX_TRIGGER 52 bool trig_enabled; 53 uint8_t int_pin; 54 const struct gpio_dt_spec gpio_drdy; 55 #endif /* CONFIG_IIS2ICLX_TRIGGER */ 56 }; 57 58 #define IIS2ICLX_SHUB_MAX_NUM_SLVS 2 59 60 struct iis2iclx_data { 61 const struct device *dev; 62 int16_t acc[2]; 63 uint32_t acc_gain; 64 #if defined(CONFIG_IIS2ICLX_ENABLE_TEMP) 65 int temp_sample; 66 #endif 67 #if defined(CONFIG_IIS2ICLX_SENSORHUB) 68 uint8_t ext_data[2][6]; 69 uint16_t magn_gain; 70 71 struct hts221_data { 72 int16_t x0; 73 int16_t x1; 74 int16_t y0; 75 int16_t y1; 76 } hts221; 77 78 bool shub_inited; 79 uint8_t num_ext_dev; 80 uint8_t shub_ext[IIS2ICLX_SHUB_MAX_NUM_SLVS]; 81 #endif /* CONFIG_IIS2ICLX_SENSORHUB */ 82 83 uint16_t accel_freq; 84 uint8_t accel_fs; 85 86 #ifdef CONFIG_IIS2ICLX_TRIGGER 87 struct gpio_callback gpio_cb; 88 sensor_trigger_handler_t handler_drdy_acc; 89 sensor_trigger_handler_t handler_drdy_temp; 90 91 #if defined(CONFIG_IIS2ICLX_TRIGGER_OWN_THREAD) 92 K_KERNEL_STACK_MEMBER(thread_stack, CONFIG_IIS2ICLX_THREAD_STACK_SIZE); 93 struct k_thread thread; 94 struct k_sem gpio_sem; 95 #elif defined(CONFIG_IIS2ICLX_TRIGGER_GLOBAL_THREAD) 96 struct k_work work; 97 #endif 98 #endif /* CONFIG_IIS2ICLX_TRIGGER */ 99 }; 100 101 #if defined(CONFIG_IIS2ICLX_SENSORHUB) 102 int iis2iclx_shub_init(const struct device *dev); 103 int iis2iclx_shub_fetch_external_devs(const struct device *dev); 104 int iis2iclx_shub_get_idx(const struct device *dev, enum sensor_channel type); 105 int iis2iclx_shub_config(const struct device *dev, enum sensor_channel chan, 106 enum sensor_attribute attr, 107 const struct sensor_value *val); 108 #endif /* CONFIG_IIS2ICLX_SENSORHUB */ 109 110 #ifdef CONFIG_IIS2ICLX_TRIGGER 111 int iis2iclx_trigger_set(const struct device *dev, 112 const struct sensor_trigger *trig, 113 sensor_trigger_handler_t handler); 114 115 int iis2iclx_init_interrupt(const struct device *dev); 116 #endif 117 118 #endif /* ZEPHYR_DRIVERS_SENSOR_IIS2ICLX_IIS2ICLX_H_ */ 119
