1 /* 2 * Copyright (c) 2017, NXP 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 */ 6 7 #include <drivers/sensor.h> 8 #include <drivers/i2c.h> 9 #include <drivers/gpio.h> 10 11 #define FXAS21002_REG_STATUS 0x00 12 #define FXAS21002_REG_OUTXMSB 0x01 13 #define FXAS21002_REG_INT_SOURCE 0x0b 14 #define FXAS21002_REG_WHOAMI 0x0c 15 #define FXAS21002_REG_CTRLREG0 0x0d 16 #define FXAS21002_REG_CTRLREG1 0x13 17 #define FXAS21002_REG_CTRLREG2 0x14 18 #define FXAS21002_REG_CTRLREG3 0x15 19 20 #define FXAS21002_INT_SOURCE_DRDY_MASK (1 << 0) 21 22 #define FXAS21002_CTRLREG0_FS_MASK (3 << 0) 23 24 #define FXAS21002_CTRLREG1_DR_SHIFT 2 25 26 #define FXAS21002_CTRLREG1_POWER_MASK (3 << 0) 27 #define FXAS21002_CTRLREG1_DR_MASK (7 << FXAS21002_CTRLREG1_DR_SHIFT) 28 #define FXAS21002_CTRLREG1_RST_MASK (1 << 6) 29 30 #define FXAS21002_CTRLREG2_CFG_EN_MASK (1 << 2) 31 #define FXAS21002_CTRLREG2_CFG_DRDY_MASK (1 << 3) 32 33 #define FXAS21002_MAX_NUM_CHANNELS 3 34 35 #define FXAS21002_BYTES_PER_CHANNEL 2 36 37 #define FXAS21002_MAX_NUM_BYTES (FXAS21002_BYTES_PER_CHANNEL * \ 38 FXAS21002_MAX_NUM_CHANNELS) 39 40 enum fxas21002_power { 41 FXAS21002_POWER_STANDBY = 0, 42 FXAS21002_POWER_READY = 1, 43 FXAS21002_POWER_ACTIVE = 3, 44 }; 45 46 enum fxas21002_range { 47 FXAS21002_RANGE_2000DPS = 0, 48 FXAS21002_RANGE_1000DPS, 49 FXAS21002_RANGE_500DPS, 50 FXAS21002_RANGE_250DPS, 51 }; 52 53 enum fxas21002_channel { 54 FXAS21002_CHANNEL_GYRO_X = 0, 55 FXAS21002_CHANNEL_GYRO_Y, 56 FXAS21002_CHANNEL_GYRO_Z, 57 }; 58 59 struct fxas21002_config { 60 char *i2c_name; 61 #ifdef CONFIG_FXAS21002_TRIGGER 62 char *gpio_name; 63 uint8_t gpio_pin; 64 gpio_dt_flags_t gpio_flags; 65 #endif 66 uint8_t i2c_address; 67 uint8_t whoami; 68 enum fxas21002_range range; 69 uint8_t dr; 70 }; 71 72 struct fxas21002_data { 73 const struct device *i2c; 74 struct k_sem sem; 75 #ifdef CONFIG_FXAS21002_TRIGGER 76 const struct device *dev; 77 const struct device *gpio; 78 uint8_t gpio_pin; 79 struct gpio_callback gpio_cb; 80 sensor_trigger_handler_t drdy_handler; 81 #endif 82 #ifdef CONFIG_FXAS21002_TRIGGER_OWN_THREAD 83 K_KERNEL_STACK_MEMBER(thread_stack, CONFIG_FXAS21002_THREAD_STACK_SIZE); 84 struct k_thread thread; 85 struct k_sem trig_sem; 86 #endif 87 #ifdef CONFIG_FXAS21002_TRIGGER_GLOBAL_THREAD 88 struct k_work work; 89 #endif 90 int16_t raw[FXAS21002_MAX_NUM_CHANNELS]; 91 }; 92 93 int fxas21002_get_power(const struct device *dev, enum fxas21002_power *power); 94 int fxas21002_set_power(const struct device *dev, enum fxas21002_power power); 95 96 uint32_t fxas21002_get_transition_time(enum fxas21002_power start, 97 enum fxas21002_power end, 98 uint8_t dr); 99 100 #if CONFIG_FXAS21002_TRIGGER 101 int fxas21002_trigger_init(const struct device *dev); 102 int fxas21002_trigger_set(const struct device *dev, 103 const struct sensor_trigger *trig, 104 sensor_trigger_handler_t handler); 105 #endif 106
