584 lines
16 KiB
C
584 lines
16 KiB
C
/****************************************************************************
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* apps/system/ramtest/ramtest.c
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*
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* Copyright (C) 2013 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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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/types.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sched.h>
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#include <syslog.h>
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#include <errno.h>
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#include <nuttx/usb/usbdev_trace.h>
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#ifdef CONFIG_SYSTEM_RAMTEST
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define RAMTEST_PREFIX "RAMTest: "
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/****************************************************************************
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* Private Types
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****************************************************************************/
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struct ramtest_s
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{
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uint8_t width;
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uintptr_t start;
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size_t size;
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size_t nxfrs;
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uint32_t mask;
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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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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Name: show_usage
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****************************************************************************/
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static void show_usage(FAR const char *progname, int exitcode)
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{
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printf("\nUsage: %s [-w|h|b] <hex-address> <decimal-size>\n", progname);
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printf("\nWhere:\n");
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printf(" <hex-address> starting address of the test.\n");
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printf(" <decimal-size> number of memory locations (in bytes).\n");
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printf(" -w Sets the width of a memory location to 32-bits.\n");
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printf(" -h Sets the width of a memory location to 16-bits (default).\n");
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printf(" -b Sets the width of a memory location to 8-bits.\n");
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exit(exitcode);
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}
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/****************************************************************************
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* Name: parse_commandline
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****************************************************************************/
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static void parse_commandline(int argc, char **argv,
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FAR struct ramtest_s *info)
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{
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FAR char *ptr;
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int option;
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while ((option = getopt(argc, argv, "whb")) != ERROR)
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{
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if (option == 'w')
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{
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info->width = 32;
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info->mask = 0xffffffff;
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}
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else if (option == 'h')
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{
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info->width = 16;
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info->mask = 0x0000ffff;
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}
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else if (option == 'b')
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{
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info->width = 8;
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info->mask = 0x000000ff;
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}
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else
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{
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printf(RAMTEST_PREFIX "Unrecognized option: '%c'\n", option);
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show_usage(argv[0], EXIT_FAILURE);
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}
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}
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/* There should be two parameters remaining on the command line */
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if (optind >= argc)
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{
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printf(RAMTEST_PREFIX "Missing required arguments\n");
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show_usage(argv[0], EXIT_FAILURE);
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}
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info->start = (uintptr_t)strtoul(argv[optind], &ptr, 16);
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if (*ptr != '\0')
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{
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printf(RAMTEST_PREFIX "Invalid <hex-address>: %s->%lx [%02x]\n",
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argv[optind], info->start, *ptr);
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show_usage(argv[0], EXIT_FAILURE);
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}
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optind++;
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if (optind >= argc)
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{
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printf(RAMTEST_PREFIX "Missing <decimal-size>\n");
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show_usage(argv[0], EXIT_FAILURE);
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}
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info->size = (size_t)strtoul(argv[optind], &ptr, 10);
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if (*ptr != '\0')
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{
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printf(RAMTEST_PREFIX "Invalid <decimal-size>: %s->%lx [%02x]\n",
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argv[optind], info->size, *ptr);
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show_usage(argv[0], EXIT_FAILURE);
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}
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/* Convert the size (in bytes) to the corresponding number of transfers
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* of the selected width.
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*/
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if (info->width == 8)
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{
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info->nxfrs = info->size;
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}
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else if (info->width == 32)
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{
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info->nxfrs = info->size >> 2;
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}
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else
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{
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info->width = 16;
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info->nxfrs = info->size >> 1;
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}
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optind++;
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if (optind != argc)
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{
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printf(RAMTEST_PREFIX "Too many arguments\n");
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show_usage(argv[0], EXIT_FAILURE);
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}
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}
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/****************************************************************************
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* Name: write_memory
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****************************************************************************/
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static void write_memory(FAR struct ramtest_s *info, uint32_t value)
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{
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size_t i;
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if (info->width == 32)
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{
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uint32_t *ptr = (uint32_t*)info->start;
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for (i = 0; i < info->nxfrs; i++)
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{
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*ptr++ = value;
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}
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}
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else if (info->width == 16)
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{
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uint16_t *ptr = (uint16_t*)info->start;
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for (i = 0; i < info->nxfrs; i++)
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{
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*ptr++ = (uint16_t)value;
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}
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}
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else /* if (info->width == 8) */
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{
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uint8_t *ptr = (uint8_t*)info->start;
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for (i = 0; i < info->nxfrs; i++)
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{
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*ptr++ = (uint8_t)value;
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}
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}
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}
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/****************************************************************************
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* Name: verify_memory
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****************************************************************************/
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static void verify_memory(FAR struct ramtest_s *info, uint32_t value)
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{
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size_t i;
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if (info->width == 32)
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{
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uint32_t *ptr = (uint32_t*)info->start;
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for (i = 0; i < info->nxfrs; i++)
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{
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if (*ptr != value)
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{
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printf(RAMTEST_PREFIX
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"ERROR: Address %p Found: %08x Expected %08x\n",
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ptr, *ptr, value);
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}
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ptr++;
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}
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}
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else if (info->width == 16)
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{
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uint16_t value16 = (uint16_t)(value & 0x0000ffff);
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uint16_t *ptr = (uint16_t*)info->start;
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for (i = 0; i < info->nxfrs; i++)
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{
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if (*ptr != value16)
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{
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printf(RAMTEST_PREFIX
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"ERROR: Address %p Found: %04x Expected %04x\n",
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ptr, *ptr, value16);
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}
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ptr++;
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}
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}
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else /* if (info->width == 8) */
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{
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uint8_t value8 = (uint8_t)(value & 0x000000ff);
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uint8_t *ptr = (uint8_t*)info->start;
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for (i = 0; i < info->nxfrs; i++)
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{
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if (*ptr != value8)
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{
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printf(RAMTEST_PREFIX
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"ERROR: Address %p Found: %02x Expected %02x\n",
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ptr, *ptr, value8);
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}
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ptr++;
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}
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}
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}
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/****************************************************************************
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* Name: marching_ones
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****************************************************************************/
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static void marching_ones(FAR struct ramtest_s *info)
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{
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uint32_t pattern = 0x00000001;
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printf(RAMTEST_PREFIX "Marching ones: %08x %d\n",
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info->start, info->size);
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while (pattern != 0)
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{
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write_memory(info, pattern);
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verify_memory(info, pattern);
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pattern <<= 1;
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pattern &= info->mask;
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}
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}
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/****************************************************************************
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* Name: marching_zeros
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****************************************************************************/
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static void marching_zeros(FAR struct ramtest_s *info)
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{
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uint32_t pattern = 0xfffffffe;
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printf(RAMTEST_PREFIX "Marching zeroes: %08x %d\n",
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info->start, info->size);
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while (pattern != 0xffffffff)
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{
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write_memory(info, pattern);
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verify_memory(info, pattern);
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pattern <<= 1;
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pattern |= 1;
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pattern |= ~info->mask;
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}
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}
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/****************************************************************************
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* Name: write_memory2
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****************************************************************************/
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static void write_memory2(FAR struct ramtest_s *info, uint32_t value_1,
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uint32_t value_2)
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{
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size_t even_nxfrs = info->nxfrs & ~1;
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size_t i;
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if (info->width == 32)
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{
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uint32_t *ptr = (uint32_t*)info->start;
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for (i = 0; i < even_nxfrs; i += 2)
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{
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*ptr++ = value_1;
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*ptr++ = value_2;
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}
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}
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else if (info->width == 16)
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{
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uint16_t *ptr = (uint16_t*)info->start;
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for (i = 0; i < even_nxfrs; i += 2)
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{
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*ptr++ = (uint16_t)value_1;
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*ptr++ = (uint16_t)value_2;
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}
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}
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else /* if (info->width == 8) */
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{
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uint8_t *ptr = (uint8_t*)info->start;
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for (i = 0; i < even_nxfrs; i += 2)
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{
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*ptr++ = (uint8_t)value_1;
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*ptr++ = (uint8_t)value_2;
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}
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}
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}
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/****************************************************************************
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* Name: verify_memory2
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****************************************************************************/
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static void verify_memory2(FAR struct ramtest_s *info, uint32_t value_1,
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uint32_t value_2)
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{
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size_t even_nxfrs = info->nxfrs & ~1;
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size_t i;
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if (info->width == 32)
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{
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uint32_t *ptr = (uint32_t*)info->start;
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for (i = 0; i < even_nxfrs; i += 2)
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{
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if (ptr[0] != value_1 || ptr[1] != value_2)
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{
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printf(RAMTEST_PREFIX
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"ERROR: Address %p Found: %08x and %08x\n",
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ptr, ptr[0], ptr[1]);
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printf(RAMTEST_PREFIX
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" Expected: %08x and %08x\n",
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value_1, value_2);
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}
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ptr += 2;
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}
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}
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else if (info->width == 16)
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{
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uint16_t value16_1 = (uint16_t)(value_1 & 0x0000ffff);
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uint16_t value16_2 = (uint16_t)(value_2 & 0x0000ffff);
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uint16_t *ptr = (uint16_t*)info->start;
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for (i = 0; i < even_nxfrs; i += 2)
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{
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if (ptr[0] != value16_1 || ptr[1] != value16_2)
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{
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printf(RAMTEST_PREFIX
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"ERROR: Address %p Found: %04x and %04x\n",
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ptr, ptr[0], ptr[1]);
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printf(RAMTEST_PREFIX
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" Expected: %04x and %04x\n",
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value16_1, value16_2);
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}
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ptr += 2;
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}
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}
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else /* if (info->width == 8) */
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{
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uint8_t value8_1 = (uint8_t)(value_1 & 0x000000ff);
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uint8_t value8_2 = (uint8_t)(value_2 & 0x000000ff);
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uint8_t *ptr = (uint8_t*)info->start;
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for (i = 0; i < even_nxfrs; i += 2)
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{
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if (ptr[0] != value8_1 || ptr[1] != value8_2)
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{
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printf(RAMTEST_PREFIX
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"ERROR: Address %p Found: %02x and %02x\n",
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ptr, ptr[0], ptr[1]);
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printf(RAMTEST_PREFIX
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" Expected: %02x and %02x\n",
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value8_1, value8_2);
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}
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ptr += 2;
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}
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}
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}
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/****************************************************************************
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* Name: pattern_test
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****************************************************************************/
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static void pattern_test(FAR struct ramtest_s *info, uint32_t pattern1,
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uint32_t pattern2)
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{
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printf(RAMTEST_PREFIX "Pattern test: %08x %d %08x %08x\n",
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info->start, info->size, pattern1, pattern2);
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write_memory2(info, pattern1, pattern2);
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verify_memory2(info, pattern1, pattern2);
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}
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/****************************************************************************
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* Name: write_addrinaddr
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****************************************************************************/
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static void write_addrinaddr(FAR struct ramtest_s *info)
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{
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size_t i;
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if (info->width == 32)
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{
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uint32_t *ptr = (uint32_t*)info->start;
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for (i = 0; i < info->nxfrs; i++)
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{
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uint32_t value32 = (uint32_t)((uintptr_t)ptr);
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*ptr++ = value32;
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}
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}
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else if (info->width == 16)
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{
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uint16_t *ptr = (uint16_t*)info->start;
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for (i = 0; i < info->nxfrs; i++)
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{
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uint16_t value16 = (uint16_t)((uintptr_t)ptr & 0x0000ffff);
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*ptr++ = value16;
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}
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}
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else /* if (info->width == 8) */
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{
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uint8_t *ptr = (uint8_t*)info->start;
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for (i = 0; i < info->nxfrs; i++)
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{
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uint8_t value8 = (uint8_t)((uintptr_t)ptr & 0x000000ff);
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*ptr++ = value8;
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}
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}
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}
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|
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/****************************************************************************
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* Name: verify_addrinaddr
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****************************************************************************/
|
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static void verify_addrinaddr(FAR struct ramtest_s *info)
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{
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size_t i;
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if (info->width == 32)
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{
|
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uint32_t *ptr = (uint32_t*)info->start;
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for (i = 0; i < info->nxfrs; i++)
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{
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uint32_t value32 = (uint32_t)((uintptr_t)ptr);
|
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if (*ptr != value32)
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{
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printf(RAMTEST_PREFIX
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"ERROR: Address %p Found: %08x Expected %08x\n",
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ptr, *ptr, value32);
|
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}
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ptr++;
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}
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}
|
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else if (info->width == 16)
|
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{
|
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uint16_t *ptr = (uint16_t*)info->start;
|
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for (i = 0; i < info->nxfrs; i++)
|
|
{
|
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uint16_t value16 = (uint16_t)((uintptr_t)ptr & 0x0000ffff);
|
|
if (*ptr != value16)
|
|
{
|
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printf(RAMTEST_PREFIX
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"ERROR: Address %p Found: %04x Expected %04x\n",
|
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ptr, *ptr, value16);
|
|
}
|
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|
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ptr++;
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}
|
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}
|
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else /* if (info->width == 8) */
|
|
{
|
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uint8_t *ptr = (uint8_t*)info->start;
|
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for (i = 0; i < info->nxfrs; i++)
|
|
{
|
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uint16_t value8 = (uint8_t)((uintptr_t)ptr & 0x000000ff);
|
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if (*ptr != value8)
|
|
{
|
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printf(RAMTEST_PREFIX
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"ERROR: Address %p Found: %02x Expected %02x\n",
|
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ptr, *ptr, value8);
|
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}
|
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|
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ptr++;
|
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}
|
|
}
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: addr_in_addr
|
|
****************************************************************************/
|
|
|
|
static void addr_in_addr(FAR struct ramtest_s *info)
|
|
{
|
|
printf(RAMTEST_PREFIX "Address-in-address test: %08x %d\n",
|
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info->start, info->size);
|
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|
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write_addrinaddr(info);
|
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verify_addrinaddr(info);
|
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}
|
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|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
#ifdef BUILD_MODULE
|
|
int main(int argc, FAR char *argv[])
|
|
#else
|
|
int ramtest_main(int argc, char **argv)
|
|
#endif
|
|
{
|
|
struct ramtest_s info;
|
|
|
|
/* Setup defaults and parse the command line */
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|
|
|
info.width = 16;
|
|
info.mask = 0x0000ffff;
|
|
parse_commandline(argc, argv, &info);
|
|
|
|
/* Perform the memory tests */
|
|
|
|
marching_ones(&info);
|
|
marching_zeros(&info);
|
|
pattern_test(&info, 0x55555555, 0xaaaaaaaa);
|
|
pattern_test(&info, 0x66666666, 0x99999999);
|
|
pattern_test(&info, 0x33333333, 0xcccccccc);
|
|
addr_in_addr(&info);
|
|
return 0;
|
|
}
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|
|
|
#endif /* CONFIG_SYSTEM_RAMTEST */
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