| /* |
| * Copyright (c) 2016 Intel Corporation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef __SENSOR_HTS221_H__ |
| #define __SENSOR_HTS221_H__ |
| |
| #include <device.h> |
| #include <misc/util.h> |
| #include <stdint.h> |
| #include <gpio.h> |
| #include <misc/nano_work.h> |
| |
| #define SYS_LOG_DOMAIN "HTS221" |
| #define SYS_LOG_LEVEL CONFIG_HTS221_SYS_LOG_LEVEL |
| #include <misc/sys_log.h> |
| |
| #define HTS221_I2C_ADDR 0x5F |
| #define HTS221_AUTOINCREMENT_ADDR BIT(7) |
| |
| #define HTS221_REG_WHO_AM_I 0x0F |
| #define HTS221_CHIP_ID 0xBC |
| |
| #define HTS221_REG_CTRL1 0x20 |
| #define HTS221_PD_BIT BIT(7) |
| #define HTS221_BDU_BIT BIT(3) |
| #define HTS221_ODR_SHIFT 0 |
| |
| #define HTS221_REG_CTRL3 0x22 |
| #define HTS221_DRDY_EN BIT(2) |
| |
| #define HTS221_REG_DATA_START 0x28 |
| #define HTS221_REG_CONVERSION_START 0x30 |
| |
| static const char * const hts221_odr_strings[] = { |
| "1", "7", "12.5" |
| }; |
| |
| struct hts221_data { |
| struct device *i2c; |
| int16_t rh_sample; |
| int16_t t_sample; |
| |
| uint8_t h0_rh_x2; |
| uint8_t h1_rh_x2; |
| uint16_t t0_degc_x8; |
| uint16_t t1_degc_x8; |
| int16_t h0_t0_out; |
| int16_t h1_t0_out; |
| int16_t t0_out; |
| int16_t t1_out; |
| |
| #ifdef CONFIG_HTS221_TRIGGER |
| struct device *gpio; |
| struct gpio_callback gpio_cb; |
| |
| struct sensor_trigger data_ready_trigger; |
| sensor_trigger_handler_t data_ready_handler; |
| |
| #if defined(CONFIG_HTS221_TRIGGER_OWN_FIBER) |
| char __stack fiber_stack[CONFIG_HTS221_FIBER_STACK_SIZE]; |
| struct nano_sem gpio_sem; |
| #elif defined(CONFIG_HTS221_TRIGGER_GLOBAL_FIBER) |
| struct nano_work work; |
| struct device *dev; |
| #endif |
| |
| #endif /* CONFIG_HTS221_TRIGGER */ |
| }; |
| |
| #ifdef CONFIG_HTS221_TRIGGER |
| int hts221_trigger_set(struct device *dev, |
| const struct sensor_trigger *trig, |
| sensor_trigger_handler_t handler); |
| |
| int hts221_init_interrupt(struct device *dev); |
| #endif |
| |
| #endif /* __SENSOR_HTS221__ */ |