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Diffstat (limited to 'apps/examples/flash_test/flash_test.c')
-rw-r--r-- | apps/examples/flash_test/flash_test.c | 307 |
1 files changed, 307 insertions, 0 deletions
diff --git a/apps/examples/flash_test/flash_test.c b/apps/examples/flash_test/flash_test.c new file mode 100644 index 000000000..105950557 --- /dev/null +++ b/apps/examples/flash_test/flash_test.c @@ -0,0 +1,307 @@ +/**************************************************************************** + * apps/system/flash_test/flash_test.c + * + * Copyright (C) 2013 Ken Pettit. All rights reserved. + * Author: Ken Pettit <pettitkd@gmail.com> + * + * 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 <nuttx/progmem.h> +#include <sys/stat.h> + +#include <unistd.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <nuttx/mtd.h> +#include <nuttx/smart.h> +#include <nuttx/fs/ioctl.h> + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private data + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +int flash_test_main(int argc, char *argv[]) +{ + struct inode* inode; + int ret; + int x; + int logsector; + uint16_t seq; + struct smart_format_s fmt; + uint16_t *sectors; + uint16_t *seqs; + char *buffer; + struct smart_read_write_s readwrite; + + /* Argument given? */ + + if (argc < 2) + { + fprintf(stderr, "usage: flash_test flash_block_device\n"); + return -1; + } + + /* Find the inode of the block driver indentified by 'source' */ + + ret = open_blockdriver(argv[1], 0, &inode); + if (ret < 0) + { + fprintf(stderr, "Failed to open %s\n", argv[1]); + goto errout; + } + + /* Get the low-level format from the device. */ + + ret = inode->u.i_bops->ioctl(inode, BIOC_GETFORMAT, (unsigned long) &fmt); + if (ret != OK) + { + fprintf(stderr, "Device is not a SMART block device\n"); + goto errout_with_driver; + } + + /* Test if the device is formatted. If not, then we must do a + * low-level format first */ + + if (!(fmt.flags & SMART_FMT_ISFORMATTED)) + { + /* Perform a low-level format */ + + ret = inode->u.i_bops->ioctl(inode, BIOC_LLFORMAT, 0); + ret = inode->u.i_bops->ioctl(inode, BIOC_GETFORMAT, (unsigned long) &fmt); + } + + if (!(fmt.flags & SMART_FMT_ISFORMATTED)) + { + fprintf(stderr, "Unable to get device format\n"); + goto errout_with_driver; + } + + /* Report the device structure */ + + printf("FLASH Test on device with:\n"); + printf(" Sector size: %10d\n", fmt.sectorsize); + printf(" Sector count: %10d\n", fmt.nsectors); + printf(" Avail bytes: %10d\n", fmt.availbytes); + printf(" Total size: %10d\n", fmt.sectorsize * fmt.nsectors); + + /* Allocate buffers to use */ + + buffer = (char *) malloc(fmt.availbytes); + if (buffer == NULL) + { + fprintf(stderr, "Error allocating buffer\n"); + goto errout_with_driver; + } + + seqs = (uint16_t *) malloc(fmt.nsectors << 1); + if (seqs == NULL) + { + (void) free(buffer); + fprintf(stderr, "Error allocating seqs buffer\n"); + goto errout_with_driver; + } + + sectors = (uint16_t *) malloc(fmt.nsectors << 1); + if (sectors == NULL) + { + (void) free(seqs); + (void) free(buffer); + fprintf(stderr, "Error allocating sectors buffer\n"); + goto errout_with_driver; + } + + /* Write a bunch of data to the flash */ + + printf("\nAllocating and writing to logical sectors\n"); + + seq = 0; + for (x = 0; x < fmt.nsectors >> 1; x++) + { + /* Allocate a new sector */ + + logsector = inode->u.i_bops->ioctl(inode, BIOC_ALLOCSECT, + (unsigned long) -1); + if (logsector < 0) + { + fprintf(stderr, "Error allocating sector: %d\n", logsector); + goto errout_with_driver; + } + + /* Save the sector in our array */ + + sectors[x] = (uint16_t) logsector; + seqs[x] = seq++; + + /* Now write some data to the sector */ + + sprintf(buffer, "Logical sector %d sequence %d\n", + sectors[x], seqs[x]); + + readwrite.logsector = sectors[x]; + readwrite.offset = 0; + readwrite.count = strlen(buffer) + 1; + readwrite.buffer = (uint8_t *) buffer; + ret = inode->u.i_bops->ioctl(inode, BIOC_WRITESECT, (unsigned long) + &readwrite); + + /* Print the logical sector number */ + + printf("\r%d ", sectors[x]); + } + + /* Now read the data back to validate everything was written and can + * be read. */ + + printf("\nDoing read verify test\n"); + for (x = 0; x < fmt.nsectors >> 1; x++) + { + /* Read from the logical sector */ + + readwrite.logsector = sectors[x]; + readwrite.offset = 0; + readwrite.count = fmt.availbytes; + readwrite.buffer = (uint8_t *) buffer; + ret = inode->u.i_bops->ioctl(inode, BIOC_READSECT, (unsigned long) + &readwrite); + + if (ret != fmt.availbytes) + { + fprintf(stderr, "Error reading sector %d\n", sectors[x]); + goto errout_with_buffers; + } + + /* Generate compare string and do the comapre */ + + printf("\r%d ", sectors[x]); + + sprintf(&buffer[100], "Logical sector %d sequence %d\n", + sectors[x], seqs[x]); + + if (strcmp(buffer, &buffer[100]) != 0) + { + printf("Sector %d read verify failed\n", sectors[x]); + } + } + + printf("\nPeforming sector re-write\n"); + + /* Overwrite data on the sectors to cause relocation */ + + for (x = 0; x < fmt.nsectors >> 1; x++) + { + /* Save a new sequence number for the sector */ + + seqs[x] = seq++; + + /* Now write over the sector data with new data, causing a relocation. */ + + sprintf(buffer, "Logical sector %d sequence %d\n", sectors[x], seqs[x]); + readwrite.logsector = sectors[x]; + readwrite.offset = 0; + readwrite.count = strlen(buffer) + 1; + readwrite.buffer = (uint8_t *) buffer; + ret = inode->u.i_bops->ioctl(inode, BIOC_WRITESECT, (unsigned long) + &readwrite); + + /* Print the logical sector number */ + + printf("\r%d ", sectors[x]); + } + + /* Now append data to empty region of sector */ + + printf("\nAppending data to empty region of sector\n"); + + for (x = 0; x < fmt.nsectors >> 1; x++) + { + /* Save a new sequence number for the sector */ + + seqs[x] = seq++; + + /* Now write over the sector data with new data, causing a relocation. */ + + sprintf(buffer, "Appended data in sector %d\n", sectors[x]); + readwrite.logsector = sectors[x]; + readwrite.offset = 64; + readwrite.count = strlen(buffer) + 1; + readwrite.buffer = (uint8_t *) buffer; + ret = inode->u.i_bops->ioctl(inode, BIOC_WRITESECT, (unsigned long) + &readwrite); + + /* Print the logical sector number */ + + printf("\r%d ", sectors[x]); + } + + printf("\nDone\n"); + + /* Free all the allocated sectors */ + + for (x = 0; x < fmt.nsectors >> 1; x++) + { + /* Only free the sector if it is still valid */ + + if (sectors[x] != 0xFFFF) + { + ret = inode->u.i_bops->ioctl(inode, BIOC_FREESECT, (unsigned long) + sectors[x]); + } + } + +errout_with_buffers: + /* Free the allocated buffers */ + + (void) free(seqs); + (void) free(sectors); + (void) free(buffer); + +errout_with_driver: + /* Now close the block device and exit */ + + (void)close_blockdriver(inode); + +errout: + + return 0; +} |