Annotation of prex-old/usr/test/ramdisk/ramdisk.c, Revision 1.1
1.1 ! nbrk 1: /*
! 2: * Copyright (c) 2006, Kohsuke Ohtani
! 3: * All rights reserved.
! 4: *
! 5: * Redistribution and use in source and binary forms, with or without
! 6: * modification, are permitted provided that the following conditions
! 7: * are met:
! 8: * 1. Redistributions of source code must retain the above copyright
! 9: * notice, this list of conditions and the following disclaimer.
! 10: * 2. Redistributions in binary form must reproduce the above copyright
! 11: * notice, this list of conditions and the following disclaimer in the
! 12: * documentation and/or other materials provided with the distribution.
! 13: * 3. Neither the name of the author nor the names of any co-contributors
! 14: * may be used to endorse or promote products derived from this software
! 15: * without specific prior written permission.
! 16: *
! 17: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
! 18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 20: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
! 21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 27: * SUCH DAMAGE.
! 28: */
! 29:
! 30: /*
! 31: * ramdisk.c - ramdisk driver test program.
! 32: */
! 33:
! 34: #include <prex/prex.h>
! 35: #include <stdio.h>
! 36: #include <string.h>
! 37: #include <ctype.h>
! 38:
! 39: static char test_msg[] = "Hello. This is a test message.";
! 40:
! 41: int
! 42: test_read(int sector)
! 43: {
! 44: device_t ramdev;
! 45: size_t size;
! 46: int err, i, j;
! 47: static unsigned char disk_buf[512];
! 48: unsigned char ch;
! 49:
! 50: printf("open ram0\n");
! 51: err = device_open("ram0", 0, &ramdev);
! 52: if (err) {
! 53: printf("open failed\n");
! 54: return 0;
! 55: }
! 56: printf("opened\n");
! 57:
! 58: printf("ramdisk read: sector=%d buf=%x\n", sector, (u_int)disk_buf);
! 59: size = 512;
! 60: err = device_read(ramdev, disk_buf, &size, sector);
! 61: if (err) {
! 62: printf("read failed\n");
! 63: device_close(ramdev);
! 64: return 0;
! 65: }
! 66: printf("read comp: sector=%d buf=%x\n", sector, (u_int)disk_buf);
! 67:
! 68: for (i = 0; i < (512 / 16); i++) {
! 69: for (j = 0; j < 16; j++)
! 70: printf("%02x ", disk_buf[i * 16 + j]);
! 71: printf(" ");
! 72: for (j = 0; j < 16; j++) {
! 73: ch = disk_buf[i * 16 + j];
! 74: if (isprint(ch))
! 75: putchar(ch);
! 76: else
! 77: putchar('.');
! 78:
! 79: }
! 80: printf("\n");
! 81: }
! 82: printf("\n");
! 83: err = device_close(ramdev);
! 84: if (err)
! 85: printf("close failed\n");
! 86:
! 87: return 0;
! 88: }
! 89:
! 90: int
! 91: test_write(int sector)
! 92: {
! 93: device_t ramdev;
! 94: size_t size;
! 95: int err;
! 96: static unsigned char disk_buf[512];
! 97:
! 98: printf("open ram0\n");
! 99: err = device_open("ram0", 0, &ramdev);
! 100: if (err) {
! 101: printf("open failed\n");
! 102: return 0;
! 103: }
! 104: printf("opened\n");
! 105:
! 106: size = 512;
! 107: err = device_read(ramdev, disk_buf, &size, sector);
! 108: if (err) {
! 109: printf("read failed\n");
! 110: device_close(ramdev);
! 111: return 0;
! 112: }
! 113: printf("read comp sector=%d\n", sector);
! 114:
! 115: strcpy((char *)disk_buf, test_msg);
! 116:
! 117: size = 512;
! 118: err = device_write(ramdev, disk_buf, &size, sector);
! 119: if (err) {
! 120: printf("write failed\n");
! 121: device_close(ramdev);
! 122: return 0;
! 123: }
! 124: printf("write comp sector=%d\n", sector);
! 125:
! 126: err = device_close(ramdev);
! 127: if (err)
! 128: printf("close failed\n");
! 129: return 0;
! 130: }
! 131:
! 132: int
! 133: main(int argc, char *argv[])
! 134: {
! 135: test_read(0);
! 136: test_read(1);
! 137: test_write(1);
! 138: test_read(1);
! 139: return 0;
! 140: }
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