140 lines
3.8 KiB
C
140 lines
3.8 KiB
C
/****************************************************************************
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* boards/arm/stm32/fire-stm32v2/src/stm32_w25.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 <stdbool.h>
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#include <stdio.h>
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#include <errno.h>
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#include <debug.h>
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#ifdef CONFIG_STM32_SPI1
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# include <nuttx/spi/spi.h>
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# include <nuttx/mtd/mtd.h>
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# include <nuttx/fs/fs.h>
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# include <nuttx/fs/nxffs.h>
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#endif
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#include "stm32_spi.h"
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#include "fire-stm32v2.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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/* Can't support the W25 device if it SPI1 or W25 support is not enabled */
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#define HAVE_W25 1
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#if !defined(CONFIG_STM32_SPI1) || !defined(CONFIG_MTD_W25)
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# undef HAVE_W25
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#endif
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/* Can't support W25 features if mountpoints are disabled */
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#if defined(CONFIG_DISABLE_MOUNTPOINT)
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# undef HAVE_W25
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#endif
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/* Can't support both FAT and NXFFS */
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#if defined(CONFIG_FS_FAT) && defined(CONFIG_FS_NXFFS)
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# warning "Can't support both FAT and NXFFS -- using FAT"
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: stm32_w25initialize
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*
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* Description:
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* Initialize and register the W25 FLASH file system.
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*
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****************************************************************************/
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int stm32_w25initialize(int minor)
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{
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#ifdef HAVE_W25
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struct spi_dev_s *spi;
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struct mtd_dev_s *mtd;
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#ifdef CONFIG_FS_NXFFS
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char devname[12];
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#endif
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int ret;
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/* Get the SPI port */
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spi = stm32_spibus_initialize(1);
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if (!spi)
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{
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ferr("ERROR: Failed to initialize SPI port 2\n");
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return -ENODEV;
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}
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/* Now bind the SPI interface to the W25 SPI FLASH driver */
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mtd = w25_initialize(spi);
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if (!mtd)
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{
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ferr("ERROR: Failed to bind SPI port 2 to the SST 25 FLASH driver\n");
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return -ENODEV;
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}
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#ifndef CONFIG_FS_NXFFS
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/* And use the FTL layer to wrap the MTD driver as a block driver */
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ret = ftl_initialize(minor, mtd);
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if (ret < 0)
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{
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ferr("ERROR: Initialize the FTL layer\n");
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return ret;
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}
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#else
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/* Initialize to provide NXFFS on the MTD interface */
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ret = nxffs_initialize(mtd);
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if (ret < 0)
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{
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ferr("ERROR: NXFFS initialization failed: %d\n", -ret);
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return ret;
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}
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/* Mount the file system at /mnt/w25 */
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snprintf(devname, 12, "/mnt/w25%c", 'a' + minor);
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ret = nx_mount(NULL, devname, "nxffs", 0, NULL);
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if (ret < 0)
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{
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ferr("ERROR: Failed to mount the NXFFS volume: %d\n", ret);
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return ret;
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}
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#endif
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#endif
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return OK;
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}
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