Mirrors_Framework/nuttx
1
0
Fork 0
mirror of https://github.com/apache/nuttx.git synced 2026-06-07 17:33:08 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

drivers/sensors: Add driver for ST LPS25H pressure sensor

Browse Source
This commit is contained in:
Juha Niskanen
2017-03-31 05:53:43 -06:00
committed by Gregory Nutt
parent 916bd8a48f
commit b5b148fef8
6 changed files with 951 additions and 24 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/nuttx/sensors/ioctl.h
+8
View File
@@ -125,4 +125,12 @@
#define SNIOC_READ_CONVERT_DATA _SNIOC(0x002f)
#define SNIOC_DUMP_REGS _SNIOC(0x0030)
/* IOCTL commands unique to the LPS25H */
#define SNIOC_GET_DEV_ID _SNIOC(0x0031)
#define SNIOC_CFGR _SNIOC(0x0032)
#define SNIOC_TEMPERATURE_OUT _SNIOC(0x0033)
#define SNIOC_PRESSURE_OUT _SNIOC(0x0034)
#define SNIOC_SENSOR_OFF _SNIOC(0x0035)
#endif /* __INCLUDE_NUTTX_SENSORS_IOCTL_H */
include/nuttx/sensors/lps25h.h
+105
View File
@@ -0,0 +1,105 @@
/****************************************************************************
* include/nuttx/sensors/lps25h.h
*
* Copyright (C) 2014, 2017 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_LPS25H_H
#define __INCLUDE_NUTT_SENSORS_LPS25H_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/sensors/ioctl.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define LPS25H_TEMPER_DIVIDER 1000
#define LPS25H_VALID_WHO_AM_I 0xbd
/****************************************************************************
* Public Types
****************************************************************************/
typedef struct lps25h_temper_data_s
{
int32_t int_temper; /* int_temper value must be divided by
* LPS25H_TEMPER_DIVIDER in your app code */
int16_t raw_data;
} lps25h_temper_data_t;
typedef struct lps25h_pressure_data_s
{
uint32_t pressure_int_hP;
uint32_t pressure_Pa;
uint32_t raw_data;
} lps25h_pressure_data_t;
typedef struct lps25h_who_am_i_data
{
uint8_t who_am_i;
} lps25h_who_am_i_data;
typedef struct lps25h_config_s
{
/* Device characterization */
int irq; /* IRQ number received by interrupt handler. */
/* IRQ/GPIO access callbacks. These operations all hidden behind callbacks
* to isolate the driver from differences in GPIO interrupt handling
* by varying boards and MCUs.
* irq_attach - Attach the interrupt handler to the GPIO interrupt
* irq_enable - Enable or disable the GPIO
* irq_clear - Acknowledge/clear any pending GPIO interrupt
* set_power - Ask board to turn on regulator
*/
CODE int (*irq_attach)(FAR struct lps25h_config_s *state, xcpt_t isr,
FAR void *arg);
CODE void (*irq_enable)(FAR const struct lps25h_config_s *state,
bool enable);
CODE void (*irq_clear)(FAR const struct lps25h_config_s *state);
CODE int (*set_power)(FAR const struct lps25h_config_s *state, bool on);
} lps25h_config_t;
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
int lps25h_register(FAR const char *devpath, FAR struct i2c_master_s *i2c,
uint8_t addr, FAR lps25h_config_t *config);
#endif /* __INCLUDE_NUTT_SENSORS_LPS25H_H */