298 lines
8.1 KiB
C
298 lines
8.1 KiB
C
/****************************************************************************
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* apps/examples/flash_test/flash_test.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 <sys/stat.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <nuttx/mtd/mtd.h>
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#include <nuttx/fs/smart.h>
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#include <nuttx/fs/ioctl.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 data
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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int main(int argc, FAR char *argv[])
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{
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struct inode *inode;
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int ret;
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int x;
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int logsector;
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uint16_t seq;
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struct smart_format_s fmt;
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uint16_t *sectors;
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uint16_t *seqs;
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char *buffer;
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struct smart_read_write_s readwrite;
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/* Argument given? */
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if (argc < 2)
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{
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fprintf(stderr, "usage: flash_test flash_block_device\n");
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return -1;
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}
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/* Find the inode of the block driver identified by 'source' */
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ret = open_blockdriver(argv[1], 0, &inode);
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if (ret < 0)
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{
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fprintf(stderr, "Failed to open %s\n", argv[1]);
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return ret;
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}
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/* Get the low-level format from the device. */
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ret = inode->u.i_bops->ioctl(inode, BIOC_GETFORMAT, (unsigned long) &fmt);
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if (ret != OK)
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{
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fprintf(stderr, "Device is not a SMART block device\n");
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goto errout_with_driver;
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}
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/* Test if the device is formatted. If not, then we must do a
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* low-level format first
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*/
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if (!(fmt.flags & SMART_FMT_ISFORMATTED))
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{
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/* Perform a low-level format */
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inode->u.i_bops->ioctl(inode, BIOC_LLFORMAT, 0);
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inode->u.i_bops->ioctl(inode, BIOC_GETFORMAT, (unsigned long) &fmt);
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}
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if (!(fmt.flags & SMART_FMT_ISFORMATTED))
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{
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fprintf(stderr, "Unable to get device format\n");
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goto errout_with_driver;
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}
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/* Report the device structure */
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printf("FLASH Test on device with:\n");
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printf(" Sector size: %10d\n", fmt.sectorsize);
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printf(" Sector count: %10d\n", fmt.nsectors);
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printf(" Avail bytes: %10d\n", fmt.availbytes);
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printf(" Total size: %10d\n", fmt.sectorsize * fmt.nsectors);
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/* Allocate buffers to use */
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buffer = (char *)malloc(fmt.availbytes);
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if (buffer == NULL)
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{
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fprintf(stderr, "Error allocating buffer\n");
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goto errout_with_driver;
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}
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seqs = (uint16_t *)malloc(fmt.nsectors << 1);
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if (seqs == NULL)
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{
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free(buffer);
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fprintf(stderr, "Error allocating seqs buffer\n");
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goto errout_with_driver;
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}
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sectors = (uint16_t *)malloc(fmt.nsectors << 1);
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if (sectors == NULL)
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{
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free(seqs);
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free(buffer);
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fprintf(stderr, "Error allocating sectors buffer\n");
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goto errout_with_driver;
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}
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/* Write a bunch of data to the flash */
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printf("\nAllocating and writing to logical sectors\n");
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seq = 0;
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for (x = 0; x < fmt.nsectors >> 1; x++)
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{
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/* Allocate a new sector */
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logsector = inode->u.i_bops->ioctl(inode, BIOC_ALLOCSECT,
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(unsigned long) -1);
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if (logsector < 0)
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{
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fprintf(stderr, "Error allocating sector: %d\n", logsector);
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goto errout_with_driver;
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}
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/* Save the sector in our array */
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sectors[x] = (uint16_t) logsector;
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seqs[x] = seq++;
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/* Now write some data to the sector */
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sprintf(buffer, "Logical sector %d sequence %d\n",
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sectors[x], seqs[x]);
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readwrite.logsector = sectors[x];
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readwrite.offset = 0;
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readwrite.count = strlen(buffer) + 1;
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readwrite.buffer = (uint8_t *)buffer;
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inode->u.i_bops->ioctl(inode, BIOC_WRITESECT, (unsigned long)
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&readwrite);
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/* Print the logical sector number */
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printf("\r%d ", sectors[x]);
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}
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/* Now read the data back to validate everything was written and can
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* be read.
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*/
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printf("\nDoing read verify test\n");
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for (x = 0; x < fmt.nsectors >> 1; x++)
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{
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/* Read from the logical sector */
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readwrite.logsector = sectors[x];
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readwrite.offset = 0;
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readwrite.count = fmt.availbytes;
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readwrite.buffer = (uint8_t *)buffer;
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ret = inode->u.i_bops->ioctl(inode, BIOC_READSECT, (unsigned long)
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&readwrite);
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if (ret != fmt.availbytes)
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{
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fprintf(stderr, "Error reading sector %d\n", sectors[x]);
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goto errout_with_buffers;
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}
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/* Generate compare string and do the compare */
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printf("\r%d ", sectors[x]);
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sprintf(&buffer[100], "Logical sector %d sequence %d\n",
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sectors[x], seqs[x]);
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if (strcmp(buffer, &buffer[100]) != 0)
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{
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printf("Sector %d read verify failed\n", sectors[x]);
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}
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}
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printf("\nPeforming sector re-write\n");
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/* Overwrite data on the sectors to cause relocation */
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for (x = 0; x < fmt.nsectors >> 1; x++)
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{
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/* Save a new sequence number for the sector */
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seqs[x] = seq++;
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/* Now write over the sector data with new data, causing a relocation.
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*/
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sprintf(buffer, "Logical sector %d sequence %d\n",
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sectors[x], seqs[x]);
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readwrite.logsector = sectors[x];
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readwrite.offset = 0;
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readwrite.count = strlen(buffer) + 1;
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readwrite.buffer = (uint8_t *)buffer;
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inode->u.i_bops->ioctl(inode, BIOC_WRITESECT, (unsigned long)
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&readwrite);
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/* Print the logical sector number */
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printf("\r%d ", sectors[x]);
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}
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/* Now append data to empty region of sector */
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printf("\nAppending data to empty region of sector\n");
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for (x = 0; x < fmt.nsectors >> 1; x++)
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{
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/* Save a new sequence number for the sector */
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seqs[x] = seq++;
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/* Now write over the sector data with new data,
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* causing a relocation.
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*/
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sprintf(buffer, "Appended data in sector %d\n", sectors[x]);
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readwrite.logsector = sectors[x];
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readwrite.offset = 64;
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readwrite.count = strlen(buffer) + 1;
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readwrite.buffer = (uint8_t *)buffer;
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inode->u.i_bops->ioctl(inode, BIOC_WRITESECT, (unsigned long)
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&readwrite);
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/* Print the logical sector number */
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printf("\r%d ", sectors[x]);
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}
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printf("\nDone\n");
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/* Free all the allocated sectors */
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for (x = 0; x < fmt.nsectors >> 1; x++)
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{
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/* Only free the sector if it is still valid */
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if (sectors[x] != 0xffff)
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{
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inode->u.i_bops->ioctl(inode, BIOC_FREESECT, (unsigned long)
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sectors[x]);
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}
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}
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errout_with_buffers:
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/* Free the allocated buffers */
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free(seqs);
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free(sectors);
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free(buffer);
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errout_with_driver:
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/* Now close the block device and exit */
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close_blockdriver(inode);
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return 0;
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}
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