| /* ST Microelectronics IIS2DLPC 3-axis accelerometer driver |
| * |
| * Copyright (c) 2020 STMicroelectronics |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| * |
| * Datasheet: |
| * https://www.st.com/resource/en/datasheet/iis2dlpc.pdf |
| */ |
| |
| #ifndef ZEPHYR_DRIVERS_SENSOR_IIS2DLPC_IIS2DLPC_H_ |
| #define ZEPHYR_DRIVERS_SENSOR_IIS2DLPC_IIS2DLPC_H_ |
| |
| #include <drivers/spi.h> |
| #include <drivers/gpio.h> |
| #include <sys/util.h> |
| #include <drivers/sensor.h> |
| #include "iis2dlpc_reg.h" |
| |
| union axis3bit16_t { |
| s16_t i16bit[3]; |
| u8_t u8bit[6]; |
| }; |
| |
| #if defined(CONFIG_IIS2DLPC_ODR_1_6) |
| #define IIS2DLPC_DEFAULT_ODR IIS2DLPC_XL_ODR_1Hz6_LP_ONLY |
| #elif defined(CONFIG_IIS2DLPC_ODR_12_5) |
| #define IIS2DLPC_DEFAULT_ODR IIS2DLPC_XL_ODR_12Hz5 |
| #elif defined(CONFIG_IIS2DLPC_ODR_25) |
| #define IIS2DLPC_DEFAULT_ODR IIS2DLPC_XL_ODR_25Hz |
| #elif defined(CONFIG_IIS2DLPC_ODR_50) |
| #define IIS2DLPC_DEFAULT_ODR IIS2DLPC_XL_ODR_50Hz |
| #elif defined(CONFIG_IIS2DLPC_ODR_100) || \ |
| defined(CONFIG_IIS2DLPC_ODR_RUNTIME) |
| #define IIS2DLPC_DEFAULT_ODR IIS2DLPC_XL_ODR_100Hz |
| #elif defined(CONFIG_IIS2DLPC_ODR_200) |
| #define IIS2DLPC_DEFAULT_ODR IIS2DLPC_XL_ODR_200Hz |
| #elif defined(CONFIG_IIS2DLPC_ODR_400) |
| #define IIS2DLPC_DEFAULT_ODR IIS2DLPC_XL_ODR_400Hz |
| #elif defined(CONFIG_IIS2DLPC_ODR_800) |
| #define IIS2DLPC_DEFAULT_ODR IIS2DLPC_XL_ODR_800Hz |
| #elif defined(CONFIG_IIS2DLPC_ODR_1600) |
| #define IIS2DLPC_DEFAULT_ODR IIS2DLPC_XL_ODR_1k6Hz |
| #endif |
| |
| /* Return ODR reg value based on data rate set */ |
| #define IIS2DLPC_ODR_TO_REG(_odr) \ |
| ((_odr <= 1) ? IIS2DLPC_XL_ODR_1Hz6_LP_ONLY : \ |
| (_odr <= 12) ? IIS2DLPC_XL_ODR_12Hz5 : \ |
| ((31 - __builtin_clz(_odr / 25))) + 3) |
| |
| /* FS reg value from Full Scale */ |
| #define IIS2DLPC_FS_TO_REG(_fs) (30 - __builtin_clz(_fs)) |
| |
| #if defined(CONFIG_IIS2DLPC_ACCEL_RANGE_RUNTIME) || \ |
| defined(CONFIG_IIS2DLPC_ACCEL_RANGE_2G) |
| #define IIS2DLPC_ACC_FS IIS2DLPC_2g |
| #elif defined(CONFIG_IIS2DLPC_ACCEL_RANGE_4G) |
| #define IIS2DLPC_ACC_FS IIS2DLPC_4g |
| #elif defined(CONFIG_IIS2DLPC_ACCEL_RANGE_8G) |
| #define IIS2DLPC_ACC_FS IIS2DLPC_8g |
| #elif defined(CONFIG_IIS2DLPC_ACCEL_RANGE_16G) |
| #define IIS2DLPC_ACC_FS IIS2DLPC_16g |
| #endif |
| |
| /* Acc Gain value in ug/LSB in High Perf mode */ |
| #define IIS2DLPC_FS_2G_GAIN 244 |
| #define IIS2DLPC_FS_4G_GAIN 488 |
| #define IIS2DLPC_FS_8G_GAIN 976 |
| #define IIS2DLPC_FS_16G_GAIN 1952 |
| |
| #define IIS2DLPC_SHFT_GAIN_NOLP1 2 |
| #define IIS2DLPC_ACCEL_GAIN_DEFAULT_VAL IIS2DLPC_FS_2G_GAIN |
| #define IIS2DLPC_FS_TO_GAIN(_fs, _lp1) \ |
| (IIS2DLPC_FS_2G_GAIN << ((_fs) + (_lp1))) |
| |
| /* shift value for power mode */ |
| #define IIS2DLPC_SHIFT_PM1 4 |
| #define IIS2DLPC_SHIFT_PMOTHER 2 |
| |
| /** |
| * struct iis2dlpc_device_config - iis2dlpc hw configuration |
| * @bus_name: Pointer to bus master identifier. |
| * @pm: Power mode (lis2dh_powermode). |
| * @int_gpio_port: Pointer to GPIO PORT identifier. |
| * @int_gpio_pin: GPIO pin number connecter to sensor int pin. |
| * @int_pin: Sensor int pin (int1/int2). |
| */ |
| struct iis2dlpc_device_config { |
| const char *bus_name; |
| iis2dlpc_mode_t pm; |
| #ifdef CONFIG_IIS2DLPC_TRIGGER |
| const char *int_gpio_port; |
| u8_t int_gpio_pin; |
| u8_t int_gpio_flags; |
| u8_t int_pin; |
| #ifdef CONFIG_IIS2DLPC_PULSE |
| u8_t pulse_trigger; |
| u8_t pulse_ths[3]; |
| u8_t pulse_shock; |
| u8_t pulse_ltncy; |
| u8_t pulse_quiet; |
| #endif /* CONFIG_IIS2DLPC_PULSE */ |
| #endif /* CONFIG_IIS2DLPC_TRIGGER */ |
| }; |
| |
| /* sensor data */ |
| struct iis2dlpc_data { |
| struct device *bus; |
| s16_t acc[3]; |
| |
| /* save sensitivity */ |
| u16_t gain; |
| |
| stmdev_ctx_t *ctx; |
| #ifdef CONFIG_IIS2DLPC_TRIGGER |
| struct device *gpio; |
| u8_t gpio_pin; |
| struct gpio_callback gpio_cb; |
| sensor_trigger_handler_t drdy_handler; |
| #ifdef CONFIG_IIS2DLPC_PULSE |
| sensor_trigger_handler_t tap_handler; |
| sensor_trigger_handler_t double_tap_handler; |
| #endif /* CONFIG_IIS2DLPC_PULSE */ |
| #if defined(CONFIG_IIS2DLPC_TRIGGER_OWN_THREAD) |
| K_THREAD_STACK_MEMBER(thread_stack, CONFIG_IIS2DLPC_THREAD_STACK_SIZE); |
| struct k_thread thread; |
| struct k_sem gpio_sem; |
| #elif defined(CONFIG_IIS2DLPC_TRIGGER_GLOBAL_THREAD) |
| struct k_work work; |
| struct device *dev; |
| #endif /* CONFIG_IIS2DLPC_TRIGGER_GLOBAL_THREAD */ |
| #endif /* CONFIG_IIS2DLPC_TRIGGER */ |
| #if DT_INST_SPI_DEV_HAS_CS_GPIOS(0) |
| struct spi_cs_control cs_ctrl; |
| #endif |
| }; |
| |
| int iis2dlpc_i2c_init(struct device *dev); |
| int iis2dlpc_spi_init(struct device *dev); |
| |
| #ifdef CONFIG_IIS2DLPC_TRIGGER |
| int iis2dlpc_init_interrupt(struct device *dev); |
| int iis2dlpc_trigger_set(struct device *dev, |
| const struct sensor_trigger *trig, |
| sensor_trigger_handler_t handler); |
| #endif /* CONFIG_IIS2DLPC_TRIGGER */ |
| |
| #endif /* ZEPHYR_DRIVERS_SENSOR_IIS2DLPC_IIS2DLPC_H_ */ |