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Add spi slave dev to esp32 xtensa

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This commit is contained in:
Felipe Moura 2024-08-28 11:05:36 -03:00 committed by Xiang Xiao
parent a0a85e5c10
commit 37e1f5db47
4 changed files with 175 additions and 3 deletions
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74
boards/xtensa/esp32/common/include/esp32_board_spislavedev.h Normal file
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@ -0,0 +1,74 @@
/****************************************************************************
* boards/xtensa/esp32/common/include/esp32_board_spislavedev.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_XTENSA_ESP32_COMMON_INCLUDE_ESP32_BOARD_SPISLAVEDEV_H
#define __BOARDS_XTENSA_ESP32_COMMON_INCLUDE_ESP32_BOARD_SPISLAVEDEV_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#ifndef __ASSEMBLY__
#undef EXTERN
#if defined(__cplusplus)
#define EXTERN extern "C"
extern "C"
{
#else
#define EXTERN extern
#endif
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
/****************************************************************************
* Name: board_spislavedev_initialize
*
* Description:
* Initialize SPI Slave driver and register the /dev/spislv device.
*
* Input Parameters:
* bus - The SPI bus number, used to build the device path as /dev/spislvN
*
* Returned Value:
* Zero (OK) is returned on success; A negated errno value is returned
* to indicate the nature of any failure.
*
****************************************************************************/
#ifdef CONFIG_SPI_SLAVE
int board_spislavedev_initialize(int bus);
#endif
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __BOARDS_XTENSA_ESP32_COMMON_INCLUDE_ESP32_BOARD_SPISLAVEDEV_H */

4
boards/xtensa/esp32/common/src/Make.defs
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@ -64,6 +64,10 @@ ifeq ($(CONFIG_SPI_DRIVER),y)
CSRCS += esp32_board_spidev.c
endif
ifeq ($(CONFIG_SPI_SLAVE_DRIVER),y)
CSRCS += esp32_board_spislavedev.c
endif
ifeq ($(CONFIG_ESP32_SPIFLASH),y)
CSRCS += esp32_board_spiflash.c
endif

82
boards/xtensa/esp32/common/src/esp32_board_spislavedev.c Normal file
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@ -0,0 +1,82 @@
/****************************************************************************
* boards/xtensa/esp32/common/src/esp32_board_spislavedev.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 <stdio.h>
#include <debug.h>
#include <errno.h>
#include <nuttx/spi/slave.h>
#include "esp32_spi.h"
#include "esp32_board_spislavedev.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: board_spislavedev_initialize
*
* Description:
* Initialize SPI Slave driver and register the /dev/spislv device.
*
* Input Parameters:
* bus - The SPI bus number, used to build the device path as /dev/spislvN
*
* Returned Value:
* Zero (OK) is returned on success; A negated errno value is returned
* to indicate the nature of any failure.
*
****************************************************************************/
int board_spislavedev_initialize(int bus)
{
int ret;
struct spi_slave_ctrlr_s *ctrlr;
spiinfo("Initializing /dev/spislv%d...\n", bus);
/* Initialize SPI Slave controller device */
ctrlr = esp32_spislv_ctrlr_initialize(bus);
if (ctrlr == NULL)
{
spierr("Failed to initialize SPI%d as slave.\n", bus);
return -ENODEV;
}
ret = spi_slave_register(ctrlr, bus);
if (ret < 0)
{
spierr("Failed to register /dev/spislv%d: %d\n", bus, ret);
esp32_spislv_ctrlr_uninitialize(ctrlr);
}
return ret;
}

18
boards/xtensa/esp32/esp32-devkitc/src/esp32_bringup.c
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@ -153,6 +153,11 @@
# include "esp32_spi.h"
#endif
#ifdef CONFIG_SPI_SLAVE_DRIVER
# include "esp32_spi.h"
# include "esp32_board_spislavedev.h"
#endif
#ifdef CONFIG_LCD_BACKPACK
# include "esp32_lcd_backpack.h"
#endif
@ -702,15 +707,22 @@ int esp32_bringup(void)
}
#endif
#ifdef CONFIG_SPI_DRIVER
# ifdef CONFIG_ESP32_SPI2
#if defined(CONFIG_ESP32_SPI2) && defined(CONFIG_SPI_DRIVER)
ret = board_spidev_initialize(ESP32_SPI2);
if (ret < 0)
{
syslog(LOG_ERR, "Failed to initialize SPI%d driver: %d\n",
ESP32_SPI2, ret);
}
# endif
#endif
# if defined(CONFIG_ESP32_SPI2) && defined(CONFIG_SPI_SLAVE_DRIVER)
ret = board_spislavedev_initialize(ESP32_SPI2);
if (ret < 0)
{
syslog(LOG_ERR, "Failed to initialize SPI%d Slave driver: %d\n",
ESP32_SPI2, ret);
}
#endif
#ifdef CONFIG_WS2812