diff --git a/boards/risc-v/esp32c3/esp32c3-devkit/src/Makefile b/boards/risc-v/esp32c3/esp32c3-devkit/src/Makefile index 14ae557cc5..f91d70996d 100644 --- a/boards/risc-v/esp32c3/esp32c3-devkit/src/Makefile +++ b/boards/risc-v/esp32c3/esp32c3-devkit/src/Makefile @@ -46,6 +46,10 @@ ifeq ($(CONFIG_ESP32C3_SPI),y) CSRCS += esp32c3_board_spi.c endif +ifeq ($(CONFIG_SPI_DRIVER),y) +CSRCS += esp32c3_board_spidev.c +endif + ifeq ($(CONFIG_I2C_DRIVER),y) CSRCS += esp32c3_i2c.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 81c94f7067..c55776badf 100644 --- a/boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3-devkit.h +++ b/boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3-devkit.h @@ -95,6 +95,25 @@ int esp32c3_gpio_init(void); int board_wdt_init(void); #endif +/**************************************************************************** + * Name: board_spidev_initialize + * + * Description: + * Initialize SPI driver and register the /dev/spi device. + * + * Input Parameters: + * bus - The SPI bus number, used to build the device path as /dev/spiN + * + * Returned Value: + * Zero (OK) is returned on success; A negated errno value is returned + * to indicate the nature of any failure. + * + ****************************************************************************/ + +#ifdef CONFIG_SPI_DRIVER +int board_spidev_initialize(int bus); +#endif + /**************************************************************************** * Name: board_i2c_init * @@ -106,6 +125,7 @@ int board_wdt_init(void); * to indicate the nature of any failure. * ****************************************************************************/ + #ifdef CONFIG_I2C_DRIVER int board_i2c_init(void); #endif @@ -154,6 +174,7 @@ int board_bmp180_initialize(int devno, int busno); * * Description: * Initialize the SPIFLASH and register the MTD device. + * ****************************************************************************/ #ifdef CONFIG_ESP32C3_SPIFLASH diff --git a/boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3_board_spidev.c b/boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3_board_spidev.c new file mode 100644 index 0000000000..2320a03965 --- /dev/null +++ b/boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3_board_spidev.c @@ -0,0 +1,72 @@ +/**************************************************************************** + * boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3_board_spidev.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_spi.h" + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: board_spidev_initialize + * + * Description: + * Initialize and register SPI driver for the specified SPI port. + * + ****************************************************************************/ + +int board_spidev_initialize(int port) +{ + int ret; + FAR struct spi_dev_s *spi; + + syslog(LOG_INFO, "Initializing /dev/spi%d...\n", port); + + /* Initialize SPI device */ + + spi = esp32c3_spibus_initialize(port); + if (spi == NULL) + { + syslog(LOG_ERR, "Failed to initialize SPI%d.\n", port); + return -ENODEV; + } + + ret = spi_register(spi, port); + if (ret < 0) + { + syslog(LOG_ERR, "Failed to register /dev/spi%d: %d\n", port, ret); + + esp32c3_spibus_uninitialize(spi); + } + + 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 1e8a94443d..e914603dbd 100644 --- a/boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3_bringup.c +++ b/boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3_bringup.c @@ -42,6 +42,10 @@ #include "esp32c3_partition.h" #include "esp32c3-devkit.h" +#ifdef CONFIG_SPI_DRIVER +# include "esp32c3_spi.h" +#endif + #ifdef CONFIG_TIMER # include "esp32c3_tim_lowerhalf.h" #endif @@ -161,6 +165,15 @@ int esp32c3_bringup(void) } #endif +#if defined(CONFIG_SPI_DRIVER) && defined(CONFIG_ESP32C3_SPI2) + ret = board_spidev_initialize(ESP32C3_SPI2); + if (ret < 0) + { + syslog(LOG_ERR, "Failed to initialize SPI%d driver: %d\n", + ESP32C3_SPI2, ret); + } +#endif + #if defined(CONFIG_I2C_DRIVER) /* Configure I2C peripheral interfaces */