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* 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_SHT3XD_
#define _SENSOR_SHT3XD_
#include <device.h>
#include <nanokernel.h>
#include <gpio.h>
#include <misc/nano_work.h>
#if CONFIG_SHT3XD_I2C_ADDR_A
#define SHT3XD_I2C_ADDRESS 0x44
#elif CONFIG_SHT3XD_I2C_ADDR_B
#define SHT3XD_I2C_ADDRESS 0x45
#endif
#define SHT3XD_CMD_FETCH 0xE000
#define SHT3XD_CMD_ART 0x2B32
#define SHT3XD_CMD_READ_STATUS 0xF32D
#define SHT3XD_CMD_CLEAR_STATUS 0x3041
#define SHT3XD_CMD_WRITE_TH_HIGH_SET 0x611D
#define SHT3XD_CMD_WRITE_TH_HIGH_CLEAR 0x6116
#define SHT3XD_CMD_WRITE_TH_LOW_SET 0x610B
#define SHT3XD_CMD_WRITE_TH_LOW_CLEAR 0x6100
#if CONFIG_SHT3XD_REPEATABILITY_LOW
#define SHT3XD_REPEATABILITY_IDX 0
#elif CONFIG_SHT3XD_REPEATABILITY_MEDIUM
#define SHT3XD_REPEATABILITY_IDX 1
#elif CONFIG_SHT3XD_REPEATABILITY_HIGH
#define SHT3XD_REPEATABILITY_IDX 2
#endif
#if CONFIG_SHT3XD_MPS_05
#define SHT3XD_MPS_IDX 0
#elif CONFIG_SHT3XD_MPS_1
#define SHT3XD_MPS_IDX 1
#elif CONFIG_SHT3XD_MPS_2
#define SHT3XD_MPS_IDX 2
#elif CONFIG_SHT3XD_MPS_4
#define SHT3XD_MPS_IDX 3
#elif CONFIG_SHT3XD_MPS_10
#define SHT3XD_MPS_IDX 4
#endif
#define SHT3XD_CLEAR_STATUS_WAIT_USEC 1000
static const uint16_t sht3xd_measure_cmd[5][3] = {
{0x202F, 0x2024, 0x2032},
{0x212D, 0x2126, 0x2130},
{0x222B, 0x2220, 0x2236},
{0x2329, 0x2322, 0x2334},
{0x272A, 0x2721, 0x2737}
};
static const int sht3xd_measure_wait[3] = {
4000, 6000, 15000
};
struct sht3xd_data {
struct device *i2c;
uint16_t t_sample;
uint16_t rh_sample;
#ifdef CONFIG_SHT3XD_TRIGGER
struct device *gpio;
struct gpio_callback gpio_cb;
uint16_t t_low;
uint16_t t_high;
uint16_t rh_low;
uint16_t rh_high;
sensor_trigger_handler_t handler;
struct sensor_trigger trigger;
#if defined(CONFIG_SHT3XD_TRIGGER_OWN_FIBER)
char __stack fiber_stack[CONFIG_SHT3XD_FIBER_STACK_SIZE];
struct nano_sem gpio_sem;
#elif defined(CONFIG_SHT3XD_TRIGGER_GLOBAL_FIBER)
struct nano_work work;
struct device *dev;
#endif
#endif /* CONFIG_SHT3XD_TRIGGER */
};
#ifdef CONFIG_SHT3XD_TRIGGER
int sht3xd_write_command(struct sht3xd_data *drv_data, uint16_t cmd);
int sht3xd_write_reg(struct sht3xd_data *drv_data, uint16_t cmd,
uint16_t val);
int sht3xd_attr_set(struct device *dev,
enum sensor_channel chan,
enum sensor_attribute attr,
const struct sensor_value *val);
int sht3xd_trigger_set(struct device *dev,
const struct sensor_trigger *trig,
sensor_trigger_handler_t handler);
int sht3xd_init_interrupt(struct device *dev);
#endif
#define SYS_LOG_DOMAIN "SHT3XD"
#define SYS_LOG_LEVEL CONFIG_SHT3XD_SYS_LOG_LEVEL
#include <misc/sys_log.h>
#endif /* _SENSOR_SHT3XD_ */
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