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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 | /* * Copyright (c) 2018 Analog Devices Inc. * * SPDX-License-Identifier: Apache-2.0 */ #ifndef ZEPHYR_DRIVERS_SENSOR_ADT7420_ADT7420_H_ #define ZEPHYR_DRIVERS_SENSOR_ADT7420_ADT7420_H_ #include <zephyr/types.h> #include <zephyr/device.h> #include <zephyr/drivers/gpio.h> /* ADT7420 registers */ #define ADT7420_REG_TEMP_MSB 0x00 /* Temperature value MSB */ #define ADT7420_REG_TEMP_LSB 0x01 /* Temperature value LSB */ #define ADT7420_REG_STATUS 0x02 /* Status */ #define ADT7420_REG_CONFIG 0x03 /* Configuration */ #define ADT7420_REG_T_HIGH_MSB 0x04 /* Temperature HIGH setpoint MSB */ #define ADT7420_REG_T_HIGH_LSB 0x05 /* Temperature HIGH setpoint LSB */ #define ADT7420_REG_T_LOW_MSB 0x06 /* Temperature LOW setpoint MSB */ #define ADT7420_REG_T_LOW_LSB 0x07 /* Temperature LOW setpoint LSB */ #define ADT7420_REG_T_CRIT_MSB 0x08 /* Temperature CRIT setpoint MSB */ #define ADT7420_REG_T_CRIT_LSB 0x09 /* Temperature CRIT setpoint LSB */ #define ADT7420_REG_HIST 0x0A /* Temperature HYST setpoint */ #define ADT7420_REG_ID 0x0B /* ID */ #define ADT7420_REG_RESET 0x2F /* Software reset */ /* ADT7420_REG_STATUS definition */ #define ADT7420_STATUS_T_LOW BIT(4) #define ADT7420_STATUS_T_HIGH BIT(5) #define ADT7420_STATUS_T_CRIT BIT(6) #define ADT7420_STATUS_RDY BIT(7) /* ADT7420_REG_CONFIG definition */ #define ADT7420_CONFIG_FAULT_QUEUE(x) ((x) & 0x3) #define ADT7420_CONFIG_CT_POL BIT(2) #define ADT7420_CONFIG_INT_POL BIT(3) #define ADT7420_CONFIG_INT_CT_MODE BIT(4) #define ADT7420_CONFIG_OP_MODE(x) (((x) & 0x3) << 5) #define ADT7420_CONFIG_RESOLUTION BIT(7) /* ADT7420_CONFIG_FAULT_QUEUE(x) options */ #define ADT7420_FAULT_QUEUE_1_FAULT 0 #define ADT7420_FAULT_QUEUE_2_FAULTS 1 #define ADT7420_FAULT_QUEUE_3_FAULTS 2 #define ADT7420_FAULT_QUEUE_4_FAULTS 3 /* ADT7420_CONFIG_OP_MODE(x) options */ #define ADT7420_OP_MODE_CONT_CONV 0 #define ADT7420_OP_MODE_ONE_SHOT 1 #define ADT7420_OP_MODE_1_SPS 2 #define ADT7420_OP_MODE_SHUTDOWN 3 /* ADT7420 default ID */ #define ADT7420_DEFAULT_ID 0xCB /* scale in micro degrees Celsius */ #define ADT7420_TEMP_SCALE 15625 struct adt7420_data { const struct device *i2c; int16_t sample; #ifdef CONFIG_ADT7420_TRIGGER const struct device *gpio; struct gpio_callback gpio_cb; sensor_trigger_handler_t th_handler; struct sensor_trigger th_trigger; const struct device *dev; #if defined(CONFIG_ADT7420_TRIGGER_OWN_THREAD) K_KERNEL_STACK_MEMBER(thread_stack, CONFIG_ADT7420_THREAD_STACK_SIZE); struct k_sem gpio_sem; struct k_thread thread; #elif defined(CONFIG_ADT7420_TRIGGER_GLOBAL_THREAD) struct k_work work; #endif #endif /* CONFIG_ADT7420_TRIGGER */ }; struct adt7420_dev_config { const char *i2c_port; uint16_t i2c_addr; #ifdef CONFIG_ADT7420_TRIGGER gpio_pin_t int_pin; gpio_flags_t int_flags; const char *int_name; #endif }; #ifdef CONFIG_ADT7420_TRIGGER int adt7420_trigger_set(const struct device *dev, const struct sensor_trigger *trig, sensor_trigger_handler_t handler); int adt7420_init_interrupt(const struct device *dev); #endif /* CONFIG_ADT7420_TRIGGER */ #endif /* ZEPHYR_DRIVERS_SENSOR_ADT7420_ADT7420_H_ */ |