154 lines
4.6 KiB
C
154 lines
4.6 KiB
C
/****************************************************************************
|
|
* config/fire-stm32v2/src/stm32_w25.c
|
|
*
|
|
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <gnutt@nuttx.org>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <sys/mount.h>
|
|
|
|
#include <stdbool.h>
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <debug.h>
|
|
|
|
#ifdef CONFIG_STM32_SPI1
|
|
# include <nuttx/spi/spi.h>
|
|
# include <nuttx/mtd/mtd.h>
|
|
# include <nuttx/fs/nxffs.h>
|
|
#endif
|
|
|
|
#include "stm32_spi.h"
|
|
#include "fire-stm32v2.h"
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
/* Configuration ************************************************************/
|
|
/* Can't support the W25 device if it SPI1 or W25 support is not enabled */
|
|
|
|
#define HAVE_W25 1
|
|
#if !defined(CONFIG_STM32_SPI1) || !defined(CONFIG_MTD_W25)
|
|
# undef HAVE_W25
|
|
#endif
|
|
|
|
/* Can't support W25 features if mountpoints are disabled */
|
|
|
|
#if defined(CONFIG_DISABLE_MOUNTPOINT)
|
|
# undef HAVE_W25
|
|
#endif
|
|
|
|
/* Can't support both FAT and NXFFS */
|
|
|
|
#if defined(CONFIG_FS_FAT) && defined(CONFIG_FS_NXFFS)
|
|
# warning "Can't support both FAT and NXFFS -- using FAT"
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: stm32_w25initialize
|
|
*
|
|
* Description:
|
|
* Initialize and register the W25 FLASH file system.
|
|
*
|
|
****************************************************************************/
|
|
|
|
int stm32_w25initialize(int minor)
|
|
{
|
|
#ifdef HAVE_W25
|
|
FAR struct spi_dev_s *spi;
|
|
FAR struct mtd_dev_s *mtd;
|
|
#ifdef CONFIG_FS_NXFFS
|
|
char devname[12];
|
|
#endif
|
|
int ret;
|
|
|
|
/* Get the SPI port */
|
|
|
|
spi = stm32_spibus_initialize(1);
|
|
if (!spi)
|
|
{
|
|
ferr("ERROR: Failed to initialize SPI port 2\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
/* Now bind the SPI interface to the W25 SPI FLASH driver */
|
|
|
|
mtd = w25_initialize(spi);
|
|
if (!mtd)
|
|
{
|
|
ferr("ERROR: Failed to bind SPI port 2 to the SST 25 FLASH driver\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
#ifndef CONFIG_FS_NXFFS
|
|
/* And finally, use the FTL layer to wrap the MTD driver as a block driver */
|
|
|
|
ret = ftl_initialize(minor, mtd);
|
|
if (ret < 0)
|
|
{
|
|
ferr("ERROR: Initialize the FTL layer\n");
|
|
return ret;
|
|
}
|
|
#else
|
|
/* Initialize to provide NXFFS on the MTD interface */
|
|
|
|
ret = nxffs_initialize(mtd);
|
|
if (ret < 0)
|
|
{
|
|
ferr("ERROR: NXFFS initialization failed: %d\n", -ret);
|
|
return ret;
|
|
}
|
|
|
|
/* Mount the file system at /mnt/w25 */
|
|
|
|
snprintf(devname, 12, "/mnt/w25%c", 'a' + minor);
|
|
ret = mount(NULL, devname, "nxffs", 0, NULL);
|
|
if (ret < 0)
|
|
{
|
|
ferr("ERROR: Failed to mount the NXFFS volume: %d\n", errno);
|
|
return ret;
|
|
}
|
|
#endif
|
|
#endif
|
|
return OK;
|
|
}
|