forked from xuos/xiuos
141 lines
3.5 KiB
C
141 lines
3.5 KiB
C
/*
|
|
* Copyright (c) 2020 AIIT XUOS Lab
|
|
* XiUOS is licensed under Mulan PSL v2.
|
|
* You can use this software according to the terms and conditions of the Mulan PSL v2.
|
|
* You may obtain a copy of Mulan PSL v2 at:
|
|
* http://license.coscl.org.cn/MulanPSL2
|
|
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
|
|
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
|
|
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
|
|
* See the Mulan PSL v2 for more details.
|
|
*/
|
|
|
|
/**
|
|
* @file hs300x_temp.c
|
|
* @brief HS300x temperature driver base perception
|
|
* @version 1.0
|
|
* @author AIIT XUOS Lab
|
|
* @date 2021.04.22
|
|
*/
|
|
|
|
#include <sensor.h>
|
|
|
|
static struct SensorDevice hs300x;
|
|
|
|
static struct SensorProductInfo info =
|
|
{
|
|
(SENSOR_ABILITY_HUMI | SENSOR_ABILITY_TEMP),
|
|
"Renesas",
|
|
"HS300x",
|
|
};
|
|
|
|
/**
|
|
* @description: Open HS300x sensor device
|
|
* @param sdev - sensor device pointer
|
|
* @return EOK
|
|
*/
|
|
static int SensorDeviceOpen(struct SensorDevice *sdev)
|
|
{
|
|
sdev->fd = open(SENSOR_DEVICE_HS300X_DEV, O_RDWR);
|
|
|
|
return EOK;
|
|
}
|
|
|
|
/**
|
|
* @description: Read sensor device
|
|
* @param sdev - sensor device pointer
|
|
* @param len - the length of the read data
|
|
* @return success: EOK , failure: -ERROR
|
|
*/
|
|
static x_size_t SensorDeviceRead(struct SensorDevice *sdev, size_t len)
|
|
{
|
|
if (write(sdev->fd, NONE, 0) != 1)
|
|
return -ERROR;
|
|
|
|
UserTaskDelay(50);
|
|
|
|
if (read(sdev->fd, sdev->buffer, len) != 1)
|
|
return -ERROR;
|
|
|
|
return EOK;
|
|
}
|
|
|
|
static struct SensorDone done =
|
|
{
|
|
SensorDeviceOpen,
|
|
NONE,
|
|
SensorDeviceRead,
|
|
NONE,
|
|
NONE,
|
|
};
|
|
|
|
/**
|
|
* @description: Init HS300x sensor and register
|
|
* @return void
|
|
*/
|
|
static void SensorDeviceHs300xInit(void)
|
|
{
|
|
hs300x.name = SENSOR_DEVICE_HS300X;
|
|
hs300x.info = &info;
|
|
hs300x.done = &done;
|
|
hs300x.status = SENSOR_DEVICE_PASSIVE;
|
|
|
|
SensorDeviceRegister(&hs300x);
|
|
}
|
|
|
|
|
|
|
|
static struct SensorQuantity hs300x_temperature;
|
|
|
|
/**
|
|
* @description: Analysis HS300x temperature result
|
|
* @param quant - sensor quantity pointer
|
|
* @return quantity value
|
|
*/
|
|
static int32 ReadTemperature(struct SensorQuantity *quant)
|
|
{
|
|
if (!quant)
|
|
return -ERROR;
|
|
|
|
float result;
|
|
if (quant->sdev->done->read != NONE) {
|
|
if (quant->sdev->status == SENSOR_DEVICE_PASSIVE) {
|
|
quant->sdev->done->read(quant->sdev, 4);
|
|
quant->sdev->done->read(quant->sdev, 4); /* It takes two reads to get the data right */
|
|
result = ((quant->sdev->buffer[2] << 8 | quant->sdev->buffer[3]) >> 2) * 165.0 /( (1 << 14) - 1) - 40.0;
|
|
|
|
return (int32)(result * 10);
|
|
}
|
|
if (quant->sdev->status == SENSOR_DEVICE_ACTIVE) {
|
|
printf("Please set passive mode.\n");
|
|
}
|
|
}else{
|
|
printf("%s don't have read done.\n", quant->name);
|
|
}
|
|
|
|
return -ERROR;
|
|
}
|
|
|
|
/**
|
|
* @description: Init HS300x temperature quantity and register
|
|
* @return 0
|
|
*/
|
|
int Hs300xTemperatureInit(void)
|
|
{
|
|
SensorDeviceHs300xInit();
|
|
|
|
hs300x_temperature.name = SENSOR_QUANTITY_HS300X_TEMPERATURE;
|
|
hs300x_temperature.type = SENSOR_QUANTITY_TEMP;
|
|
hs300x_temperature.value.decimal_places = 1;
|
|
hs300x_temperature.value.max_std = 1000;
|
|
hs300x_temperature.value.min_std = 0;
|
|
hs300x_temperature.value.last_value = SENSOR_QUANTITY_VALUE_ERROR;
|
|
hs300x_temperature.value.max_value = SENSOR_QUANTITY_VALUE_ERROR;
|
|
hs300x_temperature.value.min_value = SENSOR_QUANTITY_VALUE_ERROR;
|
|
hs300x_temperature.sdev = &hs300x;
|
|
hs300x_temperature.ReadValue = ReadTemperature;
|
|
|
|
SensorQuantityRegister(&hs300x_temperature);
|
|
|
|
return 0;
|
|
} |