diff --git a/boards/risc-v/esp32c3/esp32c3-devkit/src/Makefile b/boards/risc-v/esp32c3/esp32c3-devkit/src/Makefile index 6ae26b3e4a1..bf0565de909 100644 --- a/boards/risc-v/esp32c3/esp32c3-devkit/src/Makefile +++ b/boards/risc-v/esp32c3/esp32c3-devkit/src/Makefile @@ -42,6 +42,10 @@ ifeq ($(CONFIG_I2C_DRIVER),y) CSRCS += esp32c3_i2c.c endif +ifeq ($(CONFIG_SENSORS_BMP180),y) +CSRCS += esp32c3_bmp180.c +endif + ifeq ($(CONFIG_WATCHDOG),y) CSRCS += esp32c3_wdt.c endif diff --git a/boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3-devkit.h b/boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3-devkit.h index 090b66dd90e..b6354770dc7 100644 --- a/boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3-devkit.h +++ b/boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3-devkit.h @@ -116,5 +116,24 @@ int board_i2c_init(void); int board_tim_init(void); #endif +/**************************************************************************** + * Name: board_bmp180_initialize + * + * Description: + * Initialize and register the BMP180 Pressure Sensor driver. + * + * Input Parameters: + * devno - The device number, used to build the device path as /dev/pressN + * busno - The I2C bus number + * + * Returned Value: + * Zero (OK) on success; a negated errno value on failure. + * + ****************************************************************************/ + +#ifdef CONFIG_SENSORS_BMP180 +int board_bmp180_initialize(int devno, int busno); +#endif + #endif /* __ASSEMBLY__ */ #endif /* __BOARDS_RISCV_ESP32C3_ESP32C3_DEVKIT_SRC_ESP32C3_DEVKIT_H */ diff --git a/boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3_bmp180.c b/boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3_bmp180.c new file mode 100644 index 00000000000..5343f91ff58 --- /dev/null +++ b/boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3_bmp180.c @@ -0,0 +1,109 @@ +/**************************************************************************** + * boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3_bmp180.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 + +#include + +#include +#include +#include + +#include "esp32c3_i2c.h" +#include "esp32c3-devkit.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: board_bmp180_initialize + * + * Description: + * Initialize and register the BMP180 Pressure Sensor driver. + * + * Input Parameters: + * devno - The device number, used to build the device path as /dev/pressN + * busno - The I2C bus number + * + * Returned Value: + * Zero (OK) on success; a negated errno value on failure. + * + ****************************************************************************/ + +int board_bmp180_initialize(int devno, int busno) +{ + struct i2c_master_s *i2c; + char devpath[12]; + int ret; + + sninfo("Initializing BMP180!\n"); + + /* Initialize BMP180 */ + + i2c = esp32c3_i2cbus_initialize(busno); + + if (i2c) + { + /* Then try to register the barometer sensor in I2C0 */ + + snprintf(devpath, 12, "/dev/press%d", devno); + ret = bmp180_register(devpath, i2c); + if (ret < 0) + { + snerr("ERROR: Error registering BMP180 in I2C%d\n", busno); + } + } + else + { + ret = -ENODEV; + } + + return ret; +} + diff --git a/boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3_bringup.c b/boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3_bringup.c index cb84d58ee22..acc59658518 100644 --- a/boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3_bringup.c +++ b/boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3_bringup.c @@ -106,6 +106,19 @@ int esp32c3_bringup(void) } #endif +#ifdef CONFIG_SENSORS_BMP180 + /* Try to register BMP180 device in I2C0 */ + + ret = board_bmp180_initialize(0, 0); + + if (ret < 0) + { + syslog(LOG_ERR, "Failed to initialize BMP180 " + "Driver for I2C0: %d\n", ret); + return ret; + } +#endif + #ifdef CONFIG_WATCHDOG /* Configure watchdog timer */