drivers/sensors: Add driver for ST HTS221 humidity sensor
This commit is contained in:
Juha Niskanen
Gregory Nutt
parent
332c747bca
commit
9e2b3da3e8
|
|
@ -32,6 +32,29 @@ config BMP180
|
|||
---help---
|
||||
Enable driver support for the Bosch BMP180 barometer sensor.
|
||||
|
||||
config HTS221
|
||||
bool "ST HTS221 humidity sensor"
|
||||
default n
|
||||
select I2C
|
||||
---help---
|
||||
Enable driver support for the ST HTS221 humidity sensor.
|
||||
|
||||
if HTS221
|
||||
|
||||
config DEBUG_HTS221
|
||||
bool "Debug support for the HTS221"
|
||||
default n
|
||||
---help---
|
||||
Enables debug features for the HTS221
|
||||
|
||||
config HTS221_NPOLLWAITERS
|
||||
int "Number of waiters to poll"
|
||||
default 1
|
||||
---help---
|
||||
Number of waiters to poll
|
||||
|
||||
endif # HTS221
|
||||
|
||||
config SENSORS_L3GD20
|
||||
bool "ST L3GD20 Gyroscope Sensor support"
|
||||
default n
|
||||
|
|
|
|||
|
|
@ -81,6 +81,10 @@ ifeq ($(CONFIG_BMP180),y)
|
|||
CSRCS += bmp180.c
|
||||
endif
|
||||
|
||||
ifeq ($(CONFIG_HTS221),y)
|
||||
CSRCS += hts221.c
|
||||
endif
|
||||
|
||||
ifeq ($(CONFIG_I2C_LM75),y)
|
||||
CSRCS += lm75.c
|
||||
endif
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load Diff
|
|
@ -65,7 +65,7 @@
|
|||
|
||||
#ifndef CONFIG_CRYPTO_RANDOM_POOL
|
||||
# define up_rngaddint(k, x) ((void)(k),(void)(x))
|
||||
# define up_rngaddentropy(k, buf, n) ((void)(k),(void)(buf),(void)(x))
|
||||
# define up_rngaddentropy(k, buf, x) ((void)(k),(void)(buf),(void)(x))
|
||||
#endif
|
||||
|
||||
/****************************************************************************
|
||||
|
|
|
|||
|
|
@ -0,0 +1,158 @@
|
|||
/****************************************************************************
|
||||
* include/nuttx/sensors/hts221.h
|
||||
*
|
||||
* Copyright (C) 2014 Haltian Ltd. All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __INCLUDE_NUTT_SENSORS_HTS221_H
|
||||
#define __INCLUDE_NUTT_SENSORS_HTS221_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/sensors/ioctl.h>
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
#define HTS221_TEMPERATURE_PRECISION 100
|
||||
#define HTS221_HUMIDITY_PRECISION 10
|
||||
|
||||
/****************************************************************************
|
||||
* Public Types
|
||||
****************************************************************************/
|
||||
|
||||
/* Number of temperature samples */
|
||||
|
||||
typedef enum hts221_avrg_temp_e
|
||||
{
|
||||
HTS221_AVGT2 = 0,
|
||||
HTS221_AVGT4,
|
||||
HTS221_AVGT8,
|
||||
HTS221_AVGT16, /* Default value */
|
||||
HTS221_AVGT32,
|
||||
HTS221_AVGT64,
|
||||
HTS221_AVGT128,
|
||||
HTS221_AVGT256
|
||||
} hts221_avrg_temp_t;
|
||||
|
||||
/* Number of humidity samples */
|
||||
|
||||
typedef enum hts221_avrg_humid_e
|
||||
{
|
||||
HTS221_AVGH4 = 0,
|
||||
HTS221_AVGH8,
|
||||
HTS221_AVGH16,
|
||||
HTS221_AVGH32, /* Default value */
|
||||
HTS221_AVGH64,
|
||||
HTS221_AVGH128,
|
||||
HTS221_AVGH256,
|
||||
HTS221_AVGH512
|
||||
}hts221_avrg_humid_t;
|
||||
|
||||
/* Output data rate configuration */
|
||||
|
||||
typedef enum hts221_odr_e
|
||||
{
|
||||
HTS221_ODR_ONESHOT = 0,
|
||||
HTS221_ODR_1HZ,
|
||||
HTS221_ODR_7HZ,
|
||||
HTS221_ODR_12_5HZ
|
||||
} hts221_odr_t;
|
||||
|
||||
/* Configuration structure */
|
||||
|
||||
typedef struct hts221_settings_s
|
||||
{
|
||||
hts221_avrg_temp_t temp_resol; /* Temperature resolution. The more
|
||||
* samples sensor takes, the more power
|
||||
* it uses */
|
||||
hts221_avrg_humid_t humid_resol; /* Humidity resolution. The more
|
||||
* samples sensor takes, the more power
|
||||
* it uses */
|
||||
hts221_odr_t odr; /* Output data rate */
|
||||
bool is_bdu; /* If read operation is not faster than output
|
||||
* operation, then this variable must be set to true */
|
||||
bool is_data_rdy; /* Must be set to true, if interrupt needed.
|
||||
* Default is 0, disabled */
|
||||
bool is_high_edge; /* High or low interrupt signal from device.
|
||||
* Default is high, 0 */
|
||||
bool is_open_drain; /* Open drain or push-pull on data-ready pin.
|
||||
* Default is push-pull, 0 */
|
||||
bool is_boot; /* Refresh the content of the internal registers */
|
||||
} hts221_settings_t;
|
||||
|
||||
/* Interrupt configuration data structure */
|
||||
|
||||
typedef struct hts221_config_s
|
||||
{
|
||||
int irq;
|
||||
CODE int (*irq_attach)(FAR struct hts221_config_s * state, xcpt_t isr);
|
||||
CODE void (*irq_enable)(FAR const struct hts221_config_s * state,
|
||||
bool enable);
|
||||
CODE void (*irq_clear)(FAR const struct hts221_config_s * state);
|
||||
CODE int (*set_power)(FAR const struct hts221_config_s *state, bool on);
|
||||
} hts221_config_t;
|
||||
|
||||
/* Raw data structure */
|
||||
|
||||
typedef struct hts221_raw_data_s
|
||||
{
|
||||
uint8_t humid_low_bits;
|
||||
uint8_t humid_high_bits;
|
||||
uint8_t temp_low_bits;
|
||||
uint8_t temp_high_bits;
|
||||
} hts221_raw_data_t;
|
||||
|
||||
typedef struct hts221_conv_data_s
|
||||
{
|
||||
int temperature;
|
||||
unsigned int humidity;
|
||||
} hts221_conv_data_t;
|
||||
|
||||
/* Status register data */
|
||||
|
||||
typedef struct hts221_status_s
|
||||
{
|
||||
bool is_humid_ready;
|
||||
bool is_temp_ready;
|
||||
} hts221_status_t;
|
||||
|
||||
/****************************************************************************
|
||||
* Public Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
int hts221_register(FAR const char *devpath, FAR struct i2c_master_s *i2c,
|
||||
uint8_t addr, hts221_config_t * config);
|
||||
|
||||
#endif /* __INCLUDE_NUTT_SENSORS_HTS221_H */
|
||||
|
|
@ -115,4 +115,14 @@
|
|||
#define SNIOC_RESET _SNIOC(0x0028) /* Arg: None */
|
||||
#define SNIOC_OVERSAMPLING _SNIOC(0x0029) /* Arg: uint16_t value */
|
||||
|
||||
/* IOCTL commands unique to the HTS221 */
|
||||
|
||||
#define SNIOC_GET_DEV_ID _SNIOC(0x002a)
|
||||
#define SNIOC_CFGR _SNIOC(0x002b)
|
||||
#define SNIOC_START_CONVERSION _SNIOC(0x002c)
|
||||
#define SNIOC_CHECK_STATUS_REG _SNIOC(0x002d)
|
||||
#define SNIOC_READ_RAW_DATA _SNIOC(0x002e)
|
||||
#define SNIOC_READ_CONVERT_DATA _SNIOC(0x002f)
|
||||
#define SNIOC_DUMP_REGS _SNIOC(0x0030)
|
||||
|
||||
#endif /* __INCLUDE_NUTTX_SENSORS_IOCTL_H */
|
||||
|
|
|
|||
Loading…
Reference in New Issue