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The following commit(s) were added to refs/heads/master by this push:
new 4089e35805 drivers/sensors: add bh1749nuc color sensor support
4089e35805 is described below
commit 4089e35805f9610682eb425250fb4a362e3fce80
Author: raiden00pl <[email protected]>
AuthorDate: Wed May 31 19:46:08 2023 +0200
drivers/sensors: add bh1749nuc color sensor support
Add support for the BH1749NUC I2C color sensor.
Currently, the interrupt pin is not supported.
---
drivers/sensors/Kconfig | 7 +
drivers/sensors/Make.defs | 4 +
drivers/sensors/bh1749nuc.c | 428 ++++++++++++++++++++++++++++++++++++++
include/nuttx/sensors/bh1749nuc.h | 86 ++++++++
4 files changed, 525 insertions(+)
diff --git a/drivers/sensors/Kconfig b/drivers/sensors/Kconfig
index 8e6ab080f8..22597fc161 100644
--- a/drivers/sensors/Kconfig
+++ b/drivers/sensors/Kconfig
@@ -117,6 +117,13 @@ config SENSORS_AS726X
---help---
Enable driver support for the AS726X Spectral Sensor.
+config SENSORS_BH1749NUC
+ bool "Rohm BH1749NUC Color Sensor support"
+ default n
+ select I2C
+ ---help---
+ Enable driver support for the Rohm BH1749NUC color sensor.
+
config SENSORS_BH1750FVI
bool "Rohm BH1750FVI Ambient Light Sensor support"
default n
diff --git a/drivers/sensors/Make.defs b/drivers/sensors/Make.defs
index 556aa588ac..56f51e75c5 100644
--- a/drivers/sensors/Make.defs
+++ b/drivers/sensors/Make.defs
@@ -120,6 +120,10 @@ ifeq ($(CONFIG_ADXL345_I2C),y)
CSRCS += adxl345_i2c.c
endif
+ifeq ($(CONFIG_SENSORS_BH1749NUC),y)
+ CSRCS += bh1749nuc.c
+endif
+
ifeq ($(CONFIG_SENSORS_BH1750FVI),y)
CSRCS += bh1750fvi.c
endif
diff --git a/drivers/sensors/bh1749nuc.c b/drivers/sensors/bh1749nuc.c
new file mode 100644
index 0000000000..8c1a91cad4
--- /dev/null
+++ b/drivers/sensors/bh1749nuc.c
@@ -0,0 +1,428 @@
+/****************************************************************************
+ * drivers/sensors/bh1749nuc.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 <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/kmalloc.h>
+#include <nuttx/i2c/i2c_master.h>
+
+#include <nuttx/sensors/bh1749nuc.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define BH1749NUC_I2C_FREQ 400000
+
+#define BH1749NUC_MANUFACTID 0xE0 /* Manufact ID */
+#define BH1749NUC_PARTID 0x0D /* Part ID */
+
+/* BH1749NUC Registers */
+
+#define BH1749NUC_SYSTEM_CONTROL 0x40
+#define BH1749NUC_MODE_CONTROL1 0x41
+#define BH1749NUC_MODE_CONTROL2 0x42
+#define BH1749NUC_RED_DATA_LSB 0x50
+#define BH1749NUC_GREEN_DATA_LSB 0x52
+#define BH1749NUC_BLUE_DATA_LSB 0x54
+#define BH1749NUC_IR_DATA_LSB 0x58
+#define BH1749NUC_GREEN2_DATA_LSB 0x5a
+#define BH1749NUC_MANUFACTURER_ID 0x92
+
+/* Register SYSTEM_CONTROL */
+
+#define BH1749NUC_SYSTEM_CONTROL_SW_RESET (1 << 7)
+#define BH1749NUC_SYSTEM_CONTROL_INT_RESET (1 << 6)
+
+/* Register MODE_CONTROL1 */
+
+#define BH1749NUC_MODE_CONTROL1_IR_GAIN_X1 (0x20)
+#define BH1749NUC_MODE_CONTROL1_IR_GAIN_X32 (0x60)
+#define BH1749NUC_MODE_CONTROL1_RGB_GAIN_X1 (0x08)
+#define BH1749NUC_MODE_CONTROL1_RGB_GAIN_X32 (0x18)
+#define BH1749NUC_MODE_CONTROL1_MEAS_TIME160MS (0x02)
+
+/* Register MODE_CONTROL2 */
+
+#define BH1749NUC_MODE_CONTROL2_RGBI_EN (1 << 4)
+
+/****************************************************************************
+ * Private Type Definitions
+ ****************************************************************************/
+
+/* Structure for bh1749nuc device */
+
+struct bh1749nuc_dev_s
+{
+ FAR struct i2c_master_s *i2c; /* I2C interface */
+ int freq; /* Frequency */
+ uint8_t addr; /* I2C address */
+};
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/* Character driver methods */
+
+static int bh1749nuc_open(FAR struct file *filep);
+static int bh1749nuc_close(FAR struct file *filep);
+static ssize_t bh1749nuc_read(FAR struct file *filep,
+ FAR char *buffer,
+ size_t buflen);
+static ssize_t bh1749nuc_write(FAR struct file *filep,
+ FAR const char *buffer,
+ size_t buflen);
+static int bh1749nuc_ioctl(FAR struct file *filep, int cmd,
+ unsigned long arg);
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static const struct file_operations g_bh1749nucfops =
+{
+ bh1749nuc_open, /* open */
+ bh1749nuc_close, /* close */
+ bh1749nuc_read, /* read */
+ bh1749nuc_write, /* write */
+ NULL, /* seek */
+ bh1749nuc_ioctl, /* ioctl */
+};
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: bh1749nuc_getreg8
+ *
+ * Description:
+ * Read from an 8-bit BH1749NUC register
+ *
+ ****************************************************************************/
+
+static uint8_t bh1749nuc_getreg8(FAR struct bh1749nuc_dev_s *priv,
+ uint8_t regaddr)
+{
+ struct i2c_msg_s msg[2];
+ uint8_t regval = 0;
+ int ret;
+
+ msg[0].frequency = priv->freq;
+ msg[0].addr = priv->addr;
+ msg[0].flags = I2C_M_NOSTOP;
+ msg[0].buffer = ®addr;
+ msg[0].length = 1;
+
+ msg[1].frequency = priv->freq;
+ msg[1].addr = priv->addr;
+ msg[1].flags = I2C_M_READ;
+ msg[1].buffer = ®val;
+ msg[1].length = 1;
+
+ ret = I2C_TRANSFER(priv->i2c, msg, 2);
+ if (ret < 0)
+ {
+ snerr("I2C_TRANSFER failed: %d\n", ret);
+ }
+
+ return regval;
+}
+
+/****************************************************************************
+ * Name: bh1749nuc_read16
+ *
+ * Description:
+ * Read 16-bit register
+ *
+ ****************************************************************************/
+
+static uint16_t bh1749nuc_read16(FAR struct bh1749nuc_dev_s *priv,
+ uint8_t regaddr)
+{
+ struct i2c_msg_s msg[2];
+ uint8_t regval[2];
+ int ret;
+
+ msg[0].frequency = priv->freq;
+ msg[0].addr = priv->addr;
+ msg[0].flags = I2C_M_NOSTOP;
+ msg[0].buffer = ®addr;
+ msg[0].length = 1;
+
+ msg[1].frequency = priv->freq;
+ msg[1].addr = priv->addr;
+ msg[1].flags = I2C_M_READ;
+ msg[1].buffer = (uint8_t *)®val;
+ msg[1].length = 2;
+
+ ret = I2C_TRANSFER(priv->i2c, msg, 2);
+ if (ret < 0)
+ {
+ snerr("I2C_TRANSFER failed: %d\n", ret);
+ }
+
+ return regval[1] << 8 | regval[0] << 0;
+}
+
+/****************************************************************************
+ * Name: bh1749nuc_putreg8
+ *
+ * Description:
+ * Write to an 8-bit BH1749NUC register
+ *
+ ****************************************************************************/
+
+static void bh1749nuc_putreg8(FAR struct bh1749nuc_dev_s *priv,
+ uint8_t regaddr, uint8_t regval)
+{
+ struct i2c_msg_s msg[2];
+ uint8_t txbuffer[2];
+ int ret;
+
+ txbuffer[0] = regaddr;
+ txbuffer[1] = regval;
+
+ msg[0].frequency = priv->freq;
+ msg[0].addr = priv->addr;
+ msg[0].flags = 0;
+ msg[0].buffer = txbuffer;
+ msg[0].length = 2;
+
+ ret = I2C_TRANSFER(priv->i2c, msg, 1);
+ if (ret < 0)
+ {
+ snerr("I2C_TRANSFER failed: %d\n", ret);
+ }
+}
+
+/****************************************************************************
+ * Name: bh1749nuc_checkid
+ *
+ * Description:
+ * Read and verify the BH1749NUC chip ID
+ *
+ ****************************************************************************/
+
+static int bh1749nuc_checkid(FAR struct bh1749nuc_dev_s *priv)
+{
+ uint8_t id;
+
+ /* Read Manufact ID */
+
+ id = bh1749nuc_getreg8(priv, BH1749NUC_MANUFACTURER_ID);
+ if (id != BH1749NUC_MANUFACTID)
+ {
+ /* Manufact ID is not Correct */
+
+ snerr("Wrong Manufact ID! %02x\n", id);
+ return -ENODEV;
+ }
+
+ /* Read Part ID */
+
+ id = bh1749nuc_getreg8(priv, BH1749NUC_SYSTEM_CONTROL);
+ if ((id & 0x3f) != BH1749NUC_PARTID)
+ {
+ /* Part ID is not Correct */
+
+ snerr("Wrong Part ID! %02x\n", id);
+ return -ENODEV;
+ }
+
+ return OK;
+}
+
+/****************************************************************************
+ * Name: bh1749nuc_open
+ *
+ * Description:
+ * This function is called whenever the BH1749NUC device is opened.
+ *
+ ****************************************************************************/
+
+static int bh1749nuc_open(FAR struct file *filep)
+{
+ FAR struct inode *inode = filep->f_inode;
+ FAR struct bh1749nuc_dev_s *priv = inode->i_private;
+ uint8_t val;
+
+ /* MODE_CONTROL1 */
+
+ val = (BH1749NUC_MODE_CONTROL1_MEAS_TIME160MS |
+ BH1749NUC_MODE_CONTROL1_IR_GAIN_X1 |
+ BH1749NUC_MODE_CONTROL1_RGB_GAIN_X1);
+ bh1749nuc_putreg8(priv, BH1749NUC_MODE_CONTROL1, val);
+
+ /* MODE_CONTROL2 */
+
+ val = BH1749NUC_MODE_CONTROL2_RGBI_EN;
+ bh1749nuc_putreg8(priv, BH1749NUC_MODE_CONTROL2, val);
+
+ return OK;
+}
+
+/****************************************************************************
+ * Name: bh1749nuc_close
+ *
+ * Description:
+ * This routine is called when the BH1749NUC device is closed.
+ *
+ ****************************************************************************/
+
+static int bh1749nuc_close(FAR struct file *filep)
+{
+ FAR struct inode *inode = filep->f_inode;
+ FAR struct bh1749nuc_dev_s *priv = inode->i_private;
+ uint8_t val;
+
+ /* Stop sampling */
+
+ val = (BH1749NUC_SYSTEM_CONTROL_SW_RESET |
+ BH1749NUC_SYSTEM_CONTROL_INT_RESET);
+ bh1749nuc_putreg8(priv, BH1749NUC_SYSTEM_CONTROL, val);
+
+ return OK;
+}
+
+/****************************************************************************
+ * Name: bh1749nuc_read
+ ****************************************************************************/
+
+static ssize_t bh1749nuc_read(FAR struct file *filep, FAR char *buffer,
+ size_t len)
+{
+ FAR struct inode *inode = filep->f_inode;
+ FAR struct bh1749nuc_dev_s *priv = inode->i_private;
+ FAR struct bh1749nuc_data_s *data =
+ (FAR struct bh1749nuc_data_s *) buffer;
+
+ if (len < sizeof(struct bh1749nuc_data_s))
+ {
+ snerr("ERROR: Not enough memory to read data sample.\n");
+ return -ENOBUFS;
+ }
+
+ /* Get data */
+
+ data->red = bh1749nuc_read16(priv, BH1749NUC_RED_DATA_LSB);
+ data->green = bh1749nuc_read16(priv, BH1749NUC_GREEN_DATA_LSB);
+ data->blue = bh1749nuc_read16(priv, BH1749NUC_BLUE_DATA_LSB);
+ data->ir = bh1749nuc_read16(priv, BH1749NUC_IR_DATA_LSB);
+ data->green2 = bh1749nuc_read16(priv, BH1749NUC_GREEN2_DATA_LSB);
+
+ return sizeof(struct bh1749nuc_data_s);
+}
+
+/****************************************************************************
+ * Name: bh1749nuc_write
+ ****************************************************************************/
+
+static ssize_t bh1749nuc_write(FAR struct file *filep,
+ FAR const char *buffer,
+ size_t buflen)
+{
+ return -ENOSYS;
+}
+
+/****************************************************************************
+ * Name: bh1749nuc_ioctl
+ ****************************************************************************/
+
+static int bh1749nuc_ioctl(FAR struct file *filep,
+ int cmd,
+ unsigned long arg)
+{
+ return -ENOTTY;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: bh1749nuc_register
+ *
+ * Description:
+ * Register the BH1749NUC character device as 'devpath'
+ *
+ * Input Parameters:
+ * devpath - The full path to the driver to register. E.g., "/dev/color0"
+ * i2c - An instance of the I2C interface to use to communicate with
+ * BH1749NUC
+ * addr - I2C address
+ *
+ * Returned Value:
+ * Zero (OK) on success; a negated errno value on failure.
+ *
+ ****************************************************************************/
+
+int bh1749nuc_register(FAR const char *devpath, FAR struct i2c_master_s *i2c,
+ uint8_t addr)
+{
+ FAR struct bh1749nuc_dev_s *priv;
+ int ret;
+
+ /* Initialize the BH1749NUC device structure */
+
+ priv = (FAR struct bh1749nuc_dev_s *)
+ kmm_malloc(sizeof(struct bh1749nuc_dev_s));
+ if (!priv)
+ {
+ snerr("Failed to allocate instance\n");
+ return -ENOMEM;
+ }
+
+ priv->i2c = i2c;
+ priv->addr = addr;
+ priv->freq = BH1749NUC_I2C_FREQ;
+
+ /* Check Device ID */
+
+ ret = bh1749nuc_checkid(priv);
+ if (ret < 0)
+ {
+ snerr("Failed to register driver: %d\n", ret);
+ return ret;
+ }
+
+ /* Register the character driver */
+
+ ret = register_driver(devpath, &g_bh1749nucfops, 0666, priv);
+ if (ret < 0)
+ {
+ snerr("Failed to register driver: %d\n", ret);
+ kmm_free(priv);
+ }
+
+ sninfo("BH1749NUC driver loaded successfully!\n");
+
+ return ret;
+}
diff --git a/include/nuttx/sensors/bh1749nuc.h
b/include/nuttx/sensors/bh1749nuc.h
new file mode 100644
index 0000000000..33f559bade
--- /dev/null
+++ b/include/nuttx/sensors/bh1749nuc.h
@@ -0,0 +1,86 @@
+/****************************************************************************
+ * include/nuttx/sensors/bh1749nuc.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 __INCLUDE_NUTTX_SENSORS_BH1749NUC_H
+#define __INCLUDE_NUTTX_SENSORS_BH1749NUC_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <nuttx/i2c/i2c_master.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+struct bh1749nuc_data_s
+{
+ uint16_t red;
+ uint16_t green;
+ uint16_t blue;
+ uint16_t ir;
+ uint16_t green2;
+};
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Name: bh1749nuc_register
+ *
+ * Description:
+ * Register the BH1749NUC character device as 'devpath'
+ *
+ * Input Parameters:
+ * devpath - The full path to the driver to register. E.g., "/dev/color0"
+ * i2c - An instance of the I2C interface to use to communicate with
+ * BH1749NUC
+ * addr - I2C address
+ *
+ * Returned Value:
+ * Zero (OK) on success; a negated errno value on failure.
+ *
+ ****************************************************************************/
+
+int bh1749nuc_register(FAR const char *devpath, FAR struct i2c_master_s *i2c,
+ uint8_t addr);
+
+#undef EXTERN
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __INCLUDE_NUTTX_SENSORS_BH1749NUC_H */
