/**************************************************************************** * apps/system/flash_test/flash_test.c * * Copyright (C) 2013 Ken Pettit. All rights reserved. * Author: Ken Pettit * * 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 #include #include #include #include #include #include #include #include /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /**************************************************************************** * Private data ****************************************************************************/ /**************************************************************************** * Public Functions ****************************************************************************/ int main(int argc, FAR 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 identified 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 */ inode->u.i_bops->ioctl(inode, BIOC_LLFORMAT, 0); 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) { free(buffer); fprintf(stderr, "Error allocating seqs buffer\n"); goto errout_with_driver; } sectors = (uint16_t *) malloc(fmt.nsectors << 1); if (sectors == NULL) { free(seqs); 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; 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 compare */ 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; 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; 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) { inode->u.i_bops->ioctl(inode, BIOC_FREESECT, (unsigned long) sectors[x]); } } errout_with_buffers: /* Free the allocated buffers */ free(seqs); free(sectors); free(buffer); errout_with_driver: /* Now close the block device and exit */ close_blockdriver(inode); errout: return 0; }