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Add board support to SHT3X sensor

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This commit is contained in:
Alan C. Assis
2021-12-22 14:51:01 -03:00
committed by Xiang Xiao
parent 01e4e249cc
commit 36389dab76
4 changed files with 216 additions and 0 deletions
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boards/xtensa/esp32/common/include/esp32_sht3x.h
+84
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@@ -0,0 +1,84 @@
/****************************************************************************
* boards/xtensa/esp32/common/include/esp32_sht3x.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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 __BOARDS_XTENSA_ESP32_COMMON_INCLUDE_BOARD_SHT3X_H
#define __BOARDS_XTENSA_ESP32_COMMON_INCLUDE_BOARD_SHT3X_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Type Definitions
****************************************************************************/
/****************************************************************************
* Public Types
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
#ifdef __cplusplus
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Inline Functions
****************************************************************************/
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: board_sht3x_initialize
*
* Description:
* Initialize and register the SHT3X Temperature/Humidity Sensor driver.
*
* Input Parameters:
* devno - The device number, used to build the device path as /dev/tempN
* busno - The I2C bus number
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
****************************************************************************/
int board_sht3x_initialize(int devno, int busno);
#undef EXTERN
#ifdef __cplusplus
}
#endif
#endif /* __BOARDS_XTENSA_ESP32_COMMON_INCLUDE_BOARD_SHT3X_H */
boards/xtensa/esp32/common/src/Make.defs
+4
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@@ -50,6 +50,10 @@ ifeq ($(CONFIG_SENSORS_BMP180),y)
CSRCS += esp32_bmp180.c
endif
ifeq ($(CONFIG_SENSORS_SHT3X),y)
CSRCS += esp32_sht3x.c
endif
ifeq ($(CONFIG_LCD_HT16K33),y)
CSRCS += esp32_ht16k33.c
endif
boards/xtensa/esp32/common/src/esp32_sht3x.c
+113
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@@ -0,0 +1,113 @@
/****************************************************************************
* boards/xtensa/esp32/common/src/esp32_sht3x.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdio.h>
#include <debug.h>
#include <nuttx/arch.h>
#include <nuttx/sensors/sht3x.h>
#include <nuttx/i2c/i2c_master.h>
#include "esp32_board_i2c.h"
#include "esp32_i2c.h"
#include "esp32_sht3x.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
#define SHT3X_I2CADDR 0x44
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_sht3x_initialize
*
* Description:
* Initialize and register the SHT3X Temperature/Humidity Sensor driver.
*
* Input Parameters:
* devno - The device number, used to build the device path as /dev/tempN
* busno - The I2C bus number
*
* Returned Value:
* Zero (OK) on success; a negated errno value on failure.
*
****************************************************************************/
int board_sht3x_initialize(int devno, int busno)
{
struct i2c_master_s *i2c;
char devpath[12];
int ret;
sninfo("Initializing SHT3X!\n");
/* Initialize SHT3X */
i2c = esp32_i2cbus_initialize(busno);
if (i2c)
{
/* Then try to register the sensor in I2C Bus */
snprintf(devpath, 12, "/dev/temp%d", devno);
ret = sht3x_register(devpath, i2c, SHT3X_I2CADDR);
if (ret < 0)
{
snerr("ERROR: Error registering SHT3X in I2C%d\n", busno);
}
}
else
{
ret = -ENODEV;
}
return ret;
}
boards/xtensa/esp32/esp32-devkitc/src/esp32_bringup.c
+15
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@@ -85,6 +85,10 @@
# include "esp32_bmp180.h"
#endif
#ifdef CONFIG_SENSORS_SHT3X
# include "esp32_sht3x.h"
#endif
#ifdef CONFIG_LCD_HT16K33
# include "esp32_ht16k33.h"
#endif
@@ -386,6 +390,17 @@ int esp32_bringup(void)
}
#endif
#ifdef CONFIG_SENSORS_SHT3X
/* Try to register SHT3x device in I2C0 */
ret = board_sht3x_initialize(0, 0);
if (ret < 0)
{
syslog(LOG_ERR, "Failed to initialize SHT3X driver: %d\n", ret);
}
#endif
#ifdef CONFIG_LCD_HT16K33
/* Try to register HT16K33 in the I2C0 */