File: [local] / prex-old / usr / test / ramdisk / ramdisk.c (download)
Revision 1.1.1.1 (vendor branch), Tue Jun 3 09:38:52 2008 UTC (16 years, 2 months ago) by nbrk
Branch: MAIN, KOHSUKE
CVS Tags: PREX_0_8_BASE, PREX_0_7_BASE, HEAD Changes since 1.1: +0 -0 lines
Yeah, this is an initial import of Prex, portable real-time microkernel
operating system. I wanna hack it for non-profit but fun, so let it in.
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/*
* Copyright (c) 2006, Kohsuke Ohtani
* 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 of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*/
/*
* ramdisk.c - ramdisk driver test program.
*/
#include <prex/prex.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
static char test_msg[] = "Hello. This is a test message.";
int
test_read(int sector)
{
device_t ramdev;
size_t size;
int err, i, j;
static unsigned char disk_buf[512];
unsigned char ch;
printf("open ram0\n");
err = device_open("ram0", 0, &ramdev);
if (err) {
printf("open failed\n");
return 0;
}
printf("opened\n");
printf("ramdisk read: sector=%d buf=%x\n", sector, (u_int)disk_buf);
size = 512;
err = device_read(ramdev, disk_buf, &size, sector);
if (err) {
printf("read failed\n");
device_close(ramdev);
return 0;
}
printf("read comp: sector=%d buf=%x\n", sector, (u_int)disk_buf);
for (i = 0; i < (512 / 16); i++) {
for (j = 0; j < 16; j++)
printf("%02x ", disk_buf[i * 16 + j]);
printf(" ");
for (j = 0; j < 16; j++) {
ch = disk_buf[i * 16 + j];
if (isprint(ch))
putchar(ch);
else
putchar('.');
}
printf("\n");
}
printf("\n");
err = device_close(ramdev);
if (err)
printf("close failed\n");
return 0;
}
int
test_write(int sector)
{
device_t ramdev;
size_t size;
int err;
static unsigned char disk_buf[512];
printf("open ram0\n");
err = device_open("ram0", 0, &ramdev);
if (err) {
printf("open failed\n");
return 0;
}
printf("opened\n");
size = 512;
err = device_read(ramdev, disk_buf, &size, sector);
if (err) {
printf("read failed\n");
device_close(ramdev);
return 0;
}
printf("read comp sector=%d\n", sector);
strcpy((char *)disk_buf, test_msg);
size = 512;
err = device_write(ramdev, disk_buf, &size, sector);
if (err) {
printf("write failed\n");
device_close(ramdev);
return 0;
}
printf("write comp sector=%d\n", sector);
err = device_close(ramdev);
if (err)
printf("close failed\n");
return 0;
}
int
main(int argc, char *argv[])
{
test_read(0);
test_read(1);
test_write(1);
test_read(1);
return 0;
}