93 lines
2.3 KiB
C
93 lines
2.3 KiB
C
/*
|
|
* 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_HMC5883L_H__
|
|
#define __SENSOR_HMC5883L_H__
|
|
|
|
#include <device.h>
|
|
#include <misc/util.h>
|
|
#include <stdint.h>
|
|
#include <gpio.h>
|
|
|
|
#define SYS_LOG_DOMAIN "HMC5883L"
|
|
#define SYS_LOG_LEVEL CONFIG_SYS_LOG_SENSOR_LEVEL
|
|
#include <misc/sys_log.h>
|
|
|
|
#define HMC5883L_I2C_ADDR 0x1E
|
|
|
|
#define HMC5883L_REG_CONFIG_A 0x00
|
|
#define HMC5883L_ODR_SHIFT 2
|
|
|
|
#define HMC5883L_REG_CONFIG_B 0x01
|
|
#define HMC5883L_GAIN_SHIFT 5
|
|
|
|
#define HMC5883L_REG_MODE 0x02
|
|
#define HMC5883L_MODE_CONTINUOUS 0
|
|
|
|
#define HMC5883L_REG_DATA_START 0x03
|
|
|
|
#define HMC5883L_REG_CHIP_ID 0x0A
|
|
#define HMC5883L_CHIP_ID_A 'H'
|
|
#define HMC5883L_CHIP_ID_B '4'
|
|
#define HMC5883L_CHIP_ID_C '3'
|
|
|
|
static const char * const hmc5883l_odr_strings[] = {
|
|
"0.75", "1.5", "3", "7.5", "15", "30", "75"
|
|
};
|
|
|
|
static const char * const hmc5883l_fs_strings[] = {
|
|
"0.88", "1.3", "1.9", "2.5", "4", "4.7", "5.6", "8.1"
|
|
};
|
|
|
|
static const uint16_t hmc5883l_gain[] = {
|
|
1370, 1090, 820, 660, 440, 390, 330, 230
|
|
};
|
|
|
|
struct hmc5883l_data {
|
|
struct device *i2c;
|
|
int16_t x_sample;
|
|
int16_t y_sample;
|
|
int16_t z_sample;
|
|
uint8_t gain_idx;
|
|
|
|
#ifdef CONFIG_HMC5883L_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_HMC5883L_TRIGGER_OWN_THREAD)
|
|
char __stack thread_stack[CONFIG_HMC5883L_THREAD_STACK_SIZE];
|
|
struct k_sem gpio_sem;
|
|
#elif defined(CONFIG_HMC5883L_TRIGGER_GLOBAL_THREAD)
|
|
struct k_work work;
|
|
struct device *dev;
|
|
#endif
|
|
|
|
#endif /* CONFIG_HMC5883L_TRIGGER */
|
|
};
|
|
|
|
#ifdef CONFIG_HMC5883L_TRIGGER
|
|
int hmc5883l_trigger_set(struct device *dev,
|
|
const struct sensor_trigger *trig,
|
|
sensor_trigger_handler_t handler);
|
|
|
|
int hmc5883l_init_interrupt(struct device *dev);
|
|
#endif
|
|
|
|
#endif /* __SENSOR_HMC5883L__ */
|