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Annotation of prex-old/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: }