boards/xtensa/esp32/esp32-core: Add support for an MMCSD card over SPI.
This commit is contained in:
Ouss4
Alan Carvalho de Assis
parent
3560e16ac7
commit
41f432eb18
7 changed files with 236 additions and 0 deletions
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@ -771,6 +771,17 @@ NOTES:
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crash in the waitpid() test. At the time of the crash, there is
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extensive memory corruption and a user exception occurs (cause=28).
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mmcsdspi:
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This config tests the SPI driver by connecting an SD Card reader over SPI.
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SPI2 is used and kept with the default IOMUX pins, i.e.:
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CS --> 15
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SCK --> 14
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MOSI --> 13
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MISO --> 12
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Once booted the following command is used to mount a FAT file system:
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mount -t vfat /dev/mmcsd0 /mnt
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Things to Do
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============
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59
boards/xtensa/esp32/esp32-core/configs/mmcsdspi/defconfig
Normal file
59
boards/xtensa/esp32/esp32-core/configs/mmcsdspi/defconfig
Normal file
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@ -0,0 +1,59 @@
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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_ESP32_SPI2_DMA is not set
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# CONFIG_MMCSD_HAVE_CARDDETECT is not set
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# CONFIG_MMCSD_HAVE_WRITEPROTECT is not set
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# CONFIG_MMCSD_MMCSUPPORT 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_NSH_CMDPARMS is not set
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# CONFIG_SPI_EXCHANGE is not set
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CONFIG_ARCH="xtensa"
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CONFIG_ARCH_BOARD="esp32-core"
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CONFIG_ARCH_BOARD_ESP32CORE=y
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CONFIG_ARCH_CHIP="esp32"
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CONFIG_ARCH_CHIP_ESP32=y
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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_ESP32_SPI2=y
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CONFIG_ESP32_UART0=y
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CONFIG_FAT_LCNAMES=y
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CONFIG_FAT_LFN=y
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CONFIG_FS_FAT=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_INTELHEX_BINARY=y
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CONFIG_MAX_TASKS=16
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CONFIG_MMCSD=y
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CONFIG_MMCSD_SPICLOCK=4000000
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CONFIG_MM_REGIONS=2
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CONFIG_NFILE_DESCRIPTORS=8
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CONFIG_NFILE_STREAMS=8
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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_LINELEN=64
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CONFIG_NSH_MMCSDSPIPORTNO=2
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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_RAW_BINARY=y
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CONFIG_RR_INTERVAL=200
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CONFIG_SCHED_WAITPID=y
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CONFIG_SDCLONE_DISABLE=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_SYSTEM_NSH=y
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CONFIG_UART0_SERIAL_CONSOLE=y
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CONFIG_USER_ENTRYPOINT="nsh_main"
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@ -45,6 +45,14 @@ ifeq ($(CONFIG_LIB_BOARDCTL),y)
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CSRCS += esp32_appinit.c
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endif
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ifeq ($(CONFIG_ESP32_SPI),y)
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CSRCS += esp32_spi.c
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endif
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ifeq ($(CONFIG_MMCSD),y)
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CSRCS += esp32_mmcsd.c
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endif
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SCRIPTIN = $(SCRIPTDIR)$(DELIM)esp32.template
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SCRIPTOUT = $(SCRIPTDIR)$(DELIM)esp32_out.ld
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@ -78,5 +78,14 @@
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int esp32_bringup(void);
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/****************************************************************************
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* Name: esp32_mmcsd_initialize
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*
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* Description:
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* Initialize SPI-based SD card and card detect thread.
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****************************************************************************/
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int esp32_mmcsd_initialize(int minor);
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#endif /* __ASSEMBLY__ */
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#endif /* __BOARDS_XTENSA_ESP32_ESP32_CORE_SRC_ESP32_CORE_H */
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@ -81,6 +81,15 @@ int esp32_bringup(void)
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}
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#endif
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#ifdef CONFIG_MMCSD
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ret = esp32_mmcsd_initialize(0);
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if (ret < 0)
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{
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syslog(LOG_ERR, "Failed to initialize SD slot %d: %d\n", ret);
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return ret;
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}
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#endif
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/* If we got here then perhaps not all initialization was successful, but
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* at least enough succeeded to bring-up NSH with perhaps reduced
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* capabilities.
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84
boards/xtensa/esp32/esp32-core/src/esp32_mmcsd.c
Normal file
84
boards/xtensa/esp32/esp32-core/src/esp32_mmcsd.c
Normal file
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@ -0,0 +1,84 @@
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/****************************************************************************
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* boards/xtensa/esp32/esp32-core/src/esp32_mmcsd.c
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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 <debug.h>
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#include <nuttx/config.h>
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#include <nuttx/mmcsd.h>
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#include <nuttx/spi/spi.h>
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#include <pthread.h>
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#include <sched.h>
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#include <time.h>
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#include <unistd.h>
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#include "esp32_spi.h"
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#include "esp32-core.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: esp32_mmcsd_initialize
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*
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* Description:
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* Initialize SPI-based SD card and card detect thread.
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****************************************************************************/
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int esp32_mmcsd_initialize(int minor)
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{
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struct spi_dev_s *spi;
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int rv;
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mcinfo("INFO: Initializing mmcsd card\n");
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spi = esp32_spibus_initialize(2);
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if (spi == NULL)
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{
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mcerr("ERROR: Failed to initialize SPI port %d\n", 2);
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return -ENODEV;
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}
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rv = mmcsd_spislotinitialize(minor, 0, spi);
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if (rv < 0)
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{
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mcerr("ERROR: Failed to bind SPI port %d to SD slot %d\n",
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2, 0);
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return rv;
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}
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spiinfo("INFO: mmcsd card has been initialized successfully\n");
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return OK;
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}
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56
boards/xtensa/esp32/esp32-core/src/esp32_spi.c
Normal file
56
boards/xtensa/esp32/esp32-core/src/esp32_spi.c
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@ -0,0 +1,56 @@
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/****************************************************************************
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* boards/xtensa/esp32/esp32-core/src/esp32_spi.c
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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 <stdint.h>
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#include <stdbool.h>
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#include <debug.h>
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#include <nuttx/spi/spi.h>
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#include <arch/board/board.h>
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#include "esp32-core.h"
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: esp32_spi2_status
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****************************************************************************/
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uint8_t esp32_spi2_status(FAR struct spi_dev_s *dev, uint32_t devid)
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{
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uint8_t status = 0;
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#ifdef CONFIG_MMCSD_SPI
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if (devid == SPIDEV_MMCSD(0))
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{
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status |= SPI_STATUS_PRESENT;
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}
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#endif
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return status;
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}
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