Annotation of prex/usr/test/ramdisk/ramdisk.c, Revision 1.1.1.1
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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