boards/esp32s3: Add SPI slave device support
- Added esp32s3_board_spislavedev.c with board-level SPI slave logic - Added esp32s3_board_spislavedev.h public header in common/include - Updated Make.defs to include the new source when CONFIG_SPI_SLAVE_DRIVER=y - Adding spislv board config to esp32s3-devkit - Adding documentation of esp32s3 devkit spi slv - Fixing path include in esp32s3_board_spislavedev.c - Fixing relative path in the header of esp32s3_board_spislavedev.h - Removing neasted check in Make.defs, consistency reasons This provides initial support for SPI slave device initialization on ESP32-S3 boards, making the feature available under conditional build configuration. Signed-off-by: Thiago Finelon <thiago.sfinelon@gmail.com>
This commit is contained in:
Thiago Finelon
Filipe do Ó Cavalcanti
parent
06cc058b61
commit
2713c5e9df
6 changed files with 260 additions and 4 deletions
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@ -963,6 +963,26 @@ Once booted you can use the following commands to mount the file system::
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Note that mksmartfs is only needed the first time.
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spislv
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------
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This configuration enables the SPI2 peripheral in **slave mode** and
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provides the ``spislv`` example application to test data exchange with an
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external SPI master.
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After building and flashing the firmware, run the following command on the
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board terminal::
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nsh> spislv -x 5 1a2b3c4d5e
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This command enqueues the data sequence ``1a2b3c4d5e`` in the slave buffer.
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On the next transfer, the external SPI master should receive this data back
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from the slave.
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By default, SPI2 pins are used for the slave interface. The exact pin mapping
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depends on the ESP32-S3 DevKit version and can be adjusted through
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``menuconfig`` under *System type → SPI configuration*.
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sta_softap
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----------
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@ -0,0 +1,76 @@
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/****************************************************************************
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* boards/xtensa/esp32s3/common/include/esp32s3_board_spislavedev.h
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __BOARDS_XTENSA_ESP32S3_COMMON_INCLUDE_ESP32S3_BOARD_SPISLAVEDEV_H
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#define __BOARDS_XTENSA_ESP32S3_COMMON_INCLUDE_ESP32S3_BOARD_SPISLAVEDEV_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#ifndef __ASSEMBLY__
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: board_spislavedev_initialize
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*
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* Description:
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* Initialize SPI Slave driver and register the /dev/spislv device.
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*
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* Input Parameters:
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* bus - The SPI bus number, used to build the device path as /dev/spislvN
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*
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* Returned Value:
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* Zero (OK) is returned on success; A negated errno value is returned
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* to indicate the nature of any failure.
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*
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****************************************************************************/
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#ifdef CONFIG_SPI_SLAVE_DRIVER
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int board_spislavedev_initialize(int bus);
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#endif
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __BOARDS_XTENSA_ESP32S3_COMMON_INCLUDE_ESP32S3_BOARD_SPISLAVEDEV_H */
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@ -38,6 +38,10 @@ ifeq ($(CONFIG_SPI_DRIVER),y)
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CSRCS += esp32s3_board_spidev.c
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endif
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ifeq ($(CONFIG_SPI_SLAVE_DRIVER),y)
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CSRCS += esp32s3_board_spislavedev.c
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endif
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ifeq ($(CONFIG_ESPRESSIF_WIFI),y)
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CSRCS += esp32s3_board_wlan.c
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endif
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82
boards/xtensa/esp32s3/common/src/esp32s3_board_spislavedev.c
Normal file
82
boards/xtensa/esp32s3/common/src/esp32s3_board_spislavedev.c
Normal file
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@ -0,0 +1,82 @@
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/****************************************************************************
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* boards/xtensa/esp32s3/common/src/esp32s3_board_spislavedev.c
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdio.h>
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#include <debug.h>
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#include <errno.h>
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#include <nuttx/spi/slave.h>
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#include "esp32s3_spi.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: board_spislavedev_initialize
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*
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* Description:
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* Initialize SPI Slave driver and register the /dev/spislv device.
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*
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* Input Parameters:
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* bus - The SPI bus number, used to build the device path as /dev/spislvN
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*
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* Returned Value:
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* Zero (OK) is returned on success; A negated errno value is returned
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* to indicate the nature of any failure.
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*
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****************************************************************************/
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int board_spislavedev_initialize(int bus)
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{
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int ret;
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struct spi_slave_ctrlr_s *ctrlr;
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spiinfo("Initializing /dev/spislv%d...\n", bus);
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/* Initialize SPI Slave controller device */
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ctrlr = esp32s3_spislave_ctrlr_initialize(bus);
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if (ctrlr == NULL)
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{
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spierr("Failed to initialize SPI%d as slave.\n", bus);
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return -ENODEV;
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}
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ret = spi_slave_register(ctrlr, bus);
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if (ret < 0)
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{
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spierr("Failed to register /dev/spislv%d: %d\n", bus, ret);
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esp32s3_spislave_ctrlr_uninitialize(ctrlr);
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}
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return ret;
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}
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@ -0,0 +1,51 @@
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#
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# This file is autogenerated: PLEASE DO NOT EDIT IT.
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#
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# You can use "make menuconfig" to make any modifications to the installed .config file.
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# You can then do "make savedefconfig" to generate a new defconfig file that includes your
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# modifications.
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#
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# CONFIG_ARCH_LEDS is not set
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# CONFIG_NSH_ARGCAT is not set
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# CONFIG_NSH_CMDOPT_HEXDUMP is not set
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CONFIG_ARCH="xtensa"
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CONFIG_ARCH_BOARD="esp32s3-devkit"
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CONFIG_ARCH_BOARD_COMMON=y
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CONFIG_ARCH_BOARD_ESP32S3_DEVKIT=y
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CONFIG_ARCH_CHIP="esp32s3"
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CONFIG_ARCH_CHIP_ESP32S3=y
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CONFIG_ARCH_CHIP_ESP32S3WROOM1N4=y
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CONFIG_ARCH_INTERRUPTSTACK=2048
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CONFIG_ARCH_STACKDUMP=y
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CONFIG_ARCH_XTENSA=y
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CONFIG_BOARD_LOOPSPERMSEC=16717
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CONFIG_BUILTIN=y
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CONFIG_ESP32S3_SPI2=y
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CONFIG_ESP32S3_UART0=y
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CONFIG_EXAMPLES_SPISLV=y
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CONFIG_FS_PROCFS=y
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CONFIG_HAVE_CXX=y
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CONFIG_HAVE_CXXINITIALIZE=y
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CONFIG_IDLETHREAD_STACKSIZE=3072
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CONFIG_INIT_ENTRYPOINT="nsh_main"
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CONFIG_INIT_STACKSIZE=3072
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CONFIG_INTELHEX_BINARY=y
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CONFIG_LINE_MAX=64
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CONFIG_NSH_ARCHINIT=y
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CONFIG_NSH_BUILTIN_APPS=y
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CONFIG_NSH_FILEIOSIZE=512
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CONFIG_NSH_READLINE=y
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CONFIG_PREALLOC_TIMERS=4
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CONFIG_RAM_SIZE=114688
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CONFIG_RAM_START=0x20000000
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CONFIG_RR_INTERVAL=200
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CONFIG_SCHED_WAITPID=y
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CONFIG_SPI_DRIVER=y
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CONFIG_SPI_SLAVE=y
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CONFIG_SPI_SLAVE_DRIVER=y
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CONFIG_START_DAY=6
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CONFIG_START_MONTH=12
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CONFIG_START_YEAR=2011
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CONFIG_SYSLOG_BUFFER=y
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CONFIG_SYSTEM_NSH=y
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CONFIG_UART0_SERIAL_CONSOLE=y
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@ -116,6 +116,10 @@
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# endif
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#endif
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#ifdef CONFIG_SPI_SLAVE_DRIVER
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#include "esp32s3_board_spislavedev.h"
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#endif
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#if defined(CONFIG_ESP32S3_SDMMC) || defined(CONFIG_MMCSD_SPI)
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#include "esp32s3_board_sdmmc.h"
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#endif
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@ -188,15 +192,34 @@ int esp32s3_bringup(void)
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#endif
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#if defined(CONFIG_ESP32S3_SPI) && defined(CONFIG_SPI_DRIVER)
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#ifdef CONFIG_ESP32S3_SPI2
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ret = board_spidev_initialize(ESP32S3_SPI2);
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#if defined(CONFIG_SPI_SLAVE_DRIVER) && defined(CONFIG_ESP32S3_SPI2)
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ret = board_spislavedev_initialize(ESP32S3_SPI2);
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if (ret < 0)
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{
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syslog(LOG_ERR, "ERROR: Failed to init spidev 2: %d\n", ret);
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syslog(LOG_ERR, "Failed to initialize SPI%d Slave driver: %d\n",
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ESP32S3_SPI2, ret);
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}
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#endif
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#ifdef CONFIG_ESP32S3_SPI3
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#if defined(CONFIG_SPI_SLAVE_DRIVER) && defined(CONFIG_ESP32S3_SPI3)
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ret = board_spislavedev_initialize(ESP32S3_SPI3);
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if (ret < 0)
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{
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syslog(LOG_ERR, "Failed to initialize SPI%d Slave driver: %d\n",
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ESP32S3_SPI2, ret);
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}
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#endif
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#if defined(CONFIG_ESP32S3_SPI2) && !defined(CONFIG_SPI_SLAVE_DRIVER)
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ret = board_spidev_initialize(ESP32S3_SPI2);
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if (ret < 0)
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{
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syslog(LOG_ERR, "ERROR: Failed to init spidev 3: %d\n", ret);
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}
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#endif
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#if defined(CONFIG_ESP32S3_SPI3) && !defined(CONFIG_SPI_SLAVE_DRIVER)
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ret = board_spidev_initialize(ESP32S3_SPI3);
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if (ret < 0)
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{
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