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Posted to commits@nuttx.apache.org by pk...@apache.org on 2023/08/28 18:03:28 UTC
[nuttx] 03/12: stm32f7/common: Add light sensor BH1750
This is an automated email from the ASF dual-hosted git repository.
pkarashchenko pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/nuttx.git
commit e40fae408c0204ea76add9ed2a8edf8e80e67800
Author: Alan Carvalho de Assis <ac...@gmail.com>
AuthorDate: Thu Aug 24 18:38:19 2023 -0300
stm32f7/common: Add light sensor BH1750
---
boards/arm/stm32f7/common/include/stm32_bh1750.h | 80 ++++++++++++++++++++++
boards/arm/stm32f7/common/src/CMakeLists.txt | 4 ++
boards/arm/stm32f7/common/src/Make.defs | 4 ++
boards/arm/stm32f7/common/src/stm32_bh1750.c | 87 ++++++++++++++++++++++++
4 files changed, 175 insertions(+)
diff --git a/boards/arm/stm32f7/common/include/stm32_bh1750.h b/boards/arm/stm32f7/common/include/stm32_bh1750.h
new file mode 100644
index 0000000000..08902de8b8
--- /dev/null
+++ b/boards/arm/stm32f7/common/include/stm32_bh1750.h
@@ -0,0 +1,80 @@
+/****************************************************************************
+ * boards/arm/stm32f7/common/include/stm32_bh1750.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_ARM_STM32F7_COMMON_INCLUDE_STM32_BH1750_H
+#define __BOARDS_ARM_STM32F7_COMMON_INCLUDE_STM32_BH1750_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+/****************************************************************************
+ * Pre-processor 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_bh1750_initialize
+ *
+ * Description:
+ * Initialize and register the BH1750FVI Ambient Light driver.
+ *
+ * Input Parameters:
+ * devno - The device number, used to build the device path as /dev/lightN
+ * busno - The I2C bus number
+ *
+ * Returned Value:
+ * Zero (OK) on success; a negated errno value on failure.
+ *
+ ****************************************************************************/
+
+int board_bh1750_initialize(int devno, int busno);
+
+#undef EXTERN
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __BOARDS_ARM_STM32F7_COMMON_INCLUDE_STM32_BH1750_H */
diff --git a/boards/arm/stm32f7/common/src/CMakeLists.txt b/boards/arm/stm32f7/common/src/CMakeLists.txt
index 4022020395..83950411c3 100644
--- a/boards/arm/stm32f7/common/src/CMakeLists.txt
+++ b/boards/arm/stm32f7/common/src/CMakeLists.txt
@@ -20,4 +20,8 @@
set(SRCS)
+if(CONFIG_SENSORS_BH1750FVI)
+ list(APPEND SRCS stm32_bh1750.c)
+endif()
+
target_sources(board PRIVATE ${SRCS})
diff --git a/boards/arm/stm32f7/common/src/Make.defs b/boards/arm/stm32f7/common/src/Make.defs
index 97e58060c3..e041bb9625 100644
--- a/boards/arm/stm32f7/common/src/Make.defs
+++ b/boards/arm/stm32f7/common/src/Make.defs
@@ -20,6 +20,10 @@
ifeq ($(CONFIG_ARCH_BOARD_COMMON),y)
+ifeq ($(CONFIG_SENSORS_BH1750FVI),y)
+ CSRCS += stm32_bh1750.c
+endif
+
DEPPATH += --dep-path src
VPATH += :src
CFLAGS += ${INCDIR_PREFIX}$(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board$(DELIM)src
diff --git a/boards/arm/stm32f7/common/src/stm32_bh1750.c b/boards/arm/stm32f7/common/src/stm32_bh1750.c
new file mode 100644
index 0000000000..bf101e3f72
--- /dev/null
+++ b/boards/arm/stm32f7/common/src/stm32_bh1750.c
@@ -0,0 +1,87 @@
+/****************************************************************************
+ * boards/arm/stm32f7/common/src/stm32_bh1750.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 <errno.h>
+#include <debug.h>
+#include <stdio.h>
+
+#include <nuttx/spi/spi.h>
+#include <arch/board/board.h>
+#include <nuttx/sensors/bh1750fvi.h>
+
+#include "stm32_i2c.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: stm32_bh1750initialize
+ *
+ * Description:
+ * Initialize and register the BH1750FVI Ambient Light driver.
+ *
+ * Input Parameters:
+ * devno - The device number, used to build the device path as /dev/lightN
+ * busno - The I2C bus number
+ *
+ * Returned Value:
+ * Zero (OK) on success; a negated errno value on failure.
+ *
+ ****************************************************************************/
+
+int board_bh1750_initialize(int devno, int busno)
+{
+ struct i2c_master_s *i2c;
+ char devpath[16];
+ int ret;
+
+ sninfo("Initializing BH1750FVI!\n");
+
+ /* Initialize I2C */
+
+ i2c = stm32_i2cbus_initialize(busno);
+ if (!i2c)
+ {
+ return -ENODEV;
+ }
+
+ /* Then register the ambient light sensor */
+
+ snprintf(devpath, sizeof(devpath), "/dev/light%d", devno);
+ ret = bh1750fvi_register(devpath, i2c, BH1750FVI_I2C_ADDR);
+ if (ret < 0)
+ {
+ snerr("ERROR: Error registering BH1750FVI\n");
+ }
+
+ return ret;
+}
+