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zephyr/drivers/sensor/dht/dht.h

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sensors: add driver for DHTxx sensors Add driver for the DHT temperature and relative himidity sensor family. The sensor has a single signal pin (in addition to GND and VDD) over which communication is done in a half-duplex manner (see datasheet for more details). Datasheets: http://www.micropik.com/PDF/dht11.pdf https://www.sparkfun.com/datasheets/Sensors/Temperature/DHT22.pdf http://akizukidenshi.com/download/ds/aosong/AM2302.pdf Origin: Original Change-Id: If8c8be73d7fdfef2ab2091bf9b8fe72bcd700ed1 Signed-off-by: Bogdan Davidoaia <bogdan.m.davidoaia@intel.com>
2016-05-10 17:09:28 +08:00
/*
* Copyright (c) 2016 Intel Corporation
*
license: Replace Apache boilerplate with SPDX tag Replace the existing Apache 2.0 boilerplate header with an SPDX tag throughout the zephyr code tree. This patch was generated via a script run over the master branch. Also updated doc/porting/application.rst that had a dependency on line numbers in a literal include. Manually updated subsys/logging/sys_log.c that had a malformed header in the original file. Also cleanup several cases that already had a SPDX tag and we either got a duplicate or missed updating. Jira: ZEP-1457 Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c Signed-off-by: David B. Kinder <david.b.kinder@intel.com> Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-01-19 09:01:01 +08:00
* SPDX-License-Identifier: Apache-2.0
sensors: add driver for DHTxx sensors Add driver for the DHT temperature and relative himidity sensor family. The sensor has a single signal pin (in addition to GND and VDD) over which communication is done in a half-duplex manner (see datasheet for more details). Datasheets: http://www.micropik.com/PDF/dht11.pdf https://www.sparkfun.com/datasheets/Sensors/Temperature/DHT22.pdf http://akizukidenshi.com/download/ds/aosong/AM2302.pdf Origin: Original Change-Id: If8c8be73d7fdfef2ab2091bf9b8fe72bcd700ed1 Signed-off-by: Bogdan Davidoaia <bogdan.m.davidoaia@intel.com>
2016-05-10 17:09:28 +08:00
*/
headers: Fix headers across the project Any word started with underscore followed by and uppercase letter or a second underscore is a reserved word according with C99. Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
2018-09-15 01:43:44 +08:00
#ifndef ZEPHYR_DRIVERS_SENSOR_DHT_DHT_H_
#define ZEPHYR_DRIVERS_SENSOR_DHT_DHT_H_
sensors: add driver for DHTxx sensors Add driver for the DHT temperature and relative himidity sensor family. The sensor has a single signal pin (in addition to GND and VDD) over which communication is done in a half-duplex manner (see datasheet for more details). Datasheets: http://www.micropik.com/PDF/dht11.pdf https://www.sparkfun.com/datasheets/Sensors/Temperature/DHT22.pdf http://akizukidenshi.com/download/ds/aosong/AM2302.pdf Origin: Original Change-Id: If8c8be73d7fdfef2ab2091bf9b8fe72bcd700ed1 Signed-off-by: Bogdan Davidoaia <bogdan.m.davidoaia@intel.com>
2016-05-10 17:09:28 +08:00
#include <device.h>
#define DHT_START_SIGNAL_DURATION 18000
#define DHT_SIGNAL_MAX_WAIT_DURATION 100
#define DHT_DATA_BITS_NUM 40
struct dht_data {
struct device *gpio;
zephyr: replace zephyr integer types with C99 types git grep -l 'u\(8\|16\|32\|64\)_t' | \ xargs sed -i "s/u\(8\|16\|32\|64\)_t/uint\1_t/g" git grep -l 's\(8\|16\|32\|64\)_t' | \ xargs sed -i "s/s\(8\|16\|32\|64\)_t/int\1_t/g" Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-05-28 00:26:57 +08:00
uint8_t sample[4];
sensors: add driver for DHTxx sensors Add driver for the DHT temperature and relative himidity sensor family. The sensor has a single signal pin (in addition to GND and VDD) over which communication is done in a half-duplex manner (see datasheet for more details). Datasheets: http://www.micropik.com/PDF/dht11.pdf https://www.sparkfun.com/datasheets/Sensors/Temperature/DHT22.pdf http://akizukidenshi.com/download/ds/aosong/AM2302.pdf Origin: Original Change-Id: If8c8be73d7fdfef2ab2091bf9b8fe72bcd700ed1 Signed-off-by: Bogdan Davidoaia <bogdan.m.davidoaia@intel.com>
2016-05-10 17:09:28 +08:00
};
sensor: dht: convert from Kconfig to devicetree Define a binding for the Aosong DHT family of temperature/humidity sensors. Remove the Kconfig settings, and update the driver to use devicetree information. Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2019-12-16 23:59:39 +08:00
struct dht_config {
const char *ctrl;
gpio: rename typedef for devicetree flags gpio_dt_flags_t is shorter and consistent with DT_ prefix. Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2020-02-04 07:20:19 +08:00
gpio_dt_flags_t flags;
drivers: sensor: dht: update to new GPIO API Document IO signal behavior, switch to new API. Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2019-12-19 23:30:11 +08:00
gpio_pin_t pin;
sensor: dht: convert from Kconfig to devicetree Define a binding for the Aosong DHT family of temperature/humidity sensors. Remove the Kconfig settings, and update the driver to use devicetree information. Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
2019-12-16 23:59:39 +08:00
};
sensors: add driver for DHTxx sensors Add driver for the DHT temperature and relative himidity sensor family. The sensor has a single signal pin (in addition to GND and VDD) over which communication is done in a half-duplex manner (see datasheet for more details). Datasheets: http://www.micropik.com/PDF/dht11.pdf https://www.sparkfun.com/datasheets/Sensors/Temperature/DHT22.pdf http://akizukidenshi.com/download/ds/aosong/AM2302.pdf Origin: Original Change-Id: If8c8be73d7fdfef2ab2091bf9b8fe72bcd700ed1 Signed-off-by: Bogdan Davidoaia <bogdan.m.davidoaia@intel.com>
2016-05-10 17:09:28 +08:00
#endif