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Diffstat (limited to 'src/systemcmds/tests/test_mtd.c')
| -rw-r--r-- | src/systemcmds/tests/test_mtd.c | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/src/systemcmds/tests/test_mtd.c b/src/systemcmds/tests/test_mtd.c new file mode 100644 index 000000000..bac9efbdb --- /dev/null +++ b/src/systemcmds/tests/test_mtd.c @@ -0,0 +1,229 @@ +/**************************************************************************** + * + * Copyright (c) 2012-2014 PX4 Development Team. All rights reserved. + * + * 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 PX4 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. + * + ****************************************************************************/ + +/** + * @file test_mtd.c + * + * Param storage / file test. + * + * @author Lorenz Meier <lm@inf.ethz.ch> + */ + +#include <sys/stat.h> +#include <poll.h> +#include <dirent.h> +#include <stdio.h> +#include <stddef.h> +#include <unistd.h> +#include <fcntl.h> +#include <systemlib/err.h> +#include <systemlib/perf_counter.h> +#include <string.h> + +#include <drivers/drv_hrt.h> + +#include "tests.h" + +#define PARAM_FILE_NAME "/fs/mtd_params" + +static int check_user_abort(int fd); + +int check_user_abort(int fd) { + /* check if user wants to abort */ + char c; + + struct pollfd fds; + int ret; + fds.fd = 0; /* stdin */ + fds.events = POLLIN; + ret = poll(&fds, 1, 0); + + if (ret > 0) { + + read(0, &c, 1); + + switch (c) { + case 0x03: // ctrl-c + case 0x1b: // esc + case 'c': + case 'q': + { + warnx("Test aborted."); + fsync(fd); + close(fd); + return OK; + /* not reached */ + } + } + } + + return 1; +} + +void print_fail() +{ + printf("<[T]: MTD: FAIL>\n"); +} + +void print_success() +{ + printf("<[T]: MTD: OK>\n"); +} + +int +test_mtd(int argc, char *argv[]) +{ + unsigned iterations= 0; + + /* check if microSD card is mounted */ + struct stat buffer; + if (stat(PARAM_FILE_NAME, &buffer)) { + warnx("file %s not found, aborting MTD test", PARAM_FILE_NAME); + print_fail(); + return 1; + } + + // XXX get real storage space here + unsigned file_size = 4096; + + /* perform tests for a range of chunk sizes */ + unsigned chunk_sizes[] = {256, 512, 4096}; + + for (unsigned c = 0; c < (sizeof(chunk_sizes) / sizeof(chunk_sizes[0])); c++) { + + printf("\n====== FILE TEST: %u bytes chunks ======\n", chunk_sizes[c]); + + uint8_t write_buf[chunk_sizes[c]] __attribute__((aligned(64))); + + /* fill write buffer with known values */ + for (int i = 0; i < sizeof(write_buf); i++) { + /* this will wrap, but we just need a known value with spacing */ + write_buf[i] = i+11; + } + + uint8_t read_buf[chunk_sizes[c]] __attribute__((aligned(64))); + hrt_abstime start, end; + + int fd = open(PARAM_FILE_NAME, O_RDONLY); + int rret = read(fd, read_buf, chunk_sizes[c]); + close(fd); + + fd = open(PARAM_FILE_NAME, O_WRONLY); + + printf("printing 2 percent of the first chunk:\n"); + for (int i = 0; i < sizeof(read_buf) / 50; i++) { + printf("%02X", read_buf[i]); + } + printf("\n"); + + iterations = file_size / chunk_sizes[c]; + + start = hrt_absolute_time(); + for (unsigned i = 0; i < iterations; i++) { + int wret = write(fd, write_buf, chunk_sizes[c]); + + if (wret != (int)chunk_sizes[c]) { + warn("WRITE ERROR!"); + print_fail(); + return 1; + } + + fsync(fd); + + if (!check_user_abort(fd)) + return OK; + + } + end = hrt_absolute_time(); + + close(fd); + fd = open(PARAM_FILE_NAME, O_RDONLY); + + /* read back data for validation */ + for (unsigned i = 0; i < iterations; i++) { + int rret = read(fd, read_buf, chunk_sizes[c]); + + if (rret != chunk_sizes[c]) { + warnx("READ ERROR!"); + print_fail(); + return 1; + } + + /* compare value */ + bool compare_ok = true; + + for (int j = 0; j < chunk_sizes[c]; j++) { + if (read_buf[j] != write_buf[j]) { + warnx("COMPARISON ERROR: byte %d", j); + print_fail(); + compare_ok = false; + break; + } + } + + if (!compare_ok) { + warnx("ABORTING FURTHER COMPARISON DUE TO ERROR"); + print_fail(); + return 1; + } + + if (!check_user_abort(fd)) + return OK; + + } + + + close(fd); + + } + + /* fill the file with 0xFF to make it look new again */ + char ffbuf[64]; + memset(ffbuf, 0xFF, sizeof(ffbuf)); + int fd = open(PARAM_FILE_NAME, O_WRONLY); + for (int i = 0; i < file_size / sizeof(ffbuf); i++) { + int ret = write(fd, ffbuf, sizeof(ffbuf)); + + if (ret != sizeof(ffbuf)) { + warnx("ERROR! Could not fill file with 0xFF"); + close(fd); + print_fail(); + return 1; + } + } + + (void)close(fd); + print_success(); + + return 0; +} |