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Annotation of 43BSDReno/sys/vaxstand/drtest.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1982, 1986 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  *
                      6:  *     @(#)drtest.c    7.4 (Berkeley) 4/4/90
                      7:  */
                      8: 
                      9: /*
                     10:  * Standalone program to test a disk and driver
                     11:  * by reading the disk a track at a time.
                     12:  */
                     13: #include "param.h"
                     14: #include "disklabel.h"
                     15: #include "saio.h"
                     16: 
                     17: #define SECTSIZ        512
                     18: 
                     19: extern int end;
                     20: char   *malloc();
                     21: 
                     22: main()
                     23: {
                     24:        register int fd, sector, lastsector, tracksize;
                     25:        register char *bp;
                     26:        struct disklabel dl;
                     27:        int debug;
                     28: 
                     29:        printf("Testprogram for stand-alone driver\n\n");
                     30: again:
                     31:        debug = getdebug("Enable debugging (0=none, 1=bse, 2=ecc, 3=bse+ecc)? ");
                     32:        if (debug < 0)
                     33:                debug = 0;
                     34:        fd = getfile("Device to read?", 2);
                     35:        ioctl(fd, SAIODEVDATA, &dl);
                     36:        printf("Device data: #cylinders=%d, #tracks=%d, #sectors=%d\n",
                     37:                dl.d_ncylinders, dl.d_ntracks, dl.d_nsectors);
                     38:        ioctl(fd, SAIODEBUG, (char *)debug);
                     39:        tracksize = dl.d_nsectors * SECTSIZ;
                     40:        bp = malloc(tracksize);
                     41:        printf("Reading in %d byte records\n", tracksize);
                     42:        printf("Start ...make sure drive is on-line\n");
                     43:        lseek(fd, 0, L_SET);
                     44:        lastsector = dl.d_ncylinders * dl.d_secpercyl;
                     45:        for (sector = 0; sector < lastsector; sector += dl.d_nsectors) {
                     46:                if (sector && (sector % (dl.d_secpercyl * 10)) == 0)
                     47:                        printf("cylinder %d\n", sector/dl.d_secpercyl);
                     48:                read(fd, bp, tracksize);
                     49:        }
                     50:        goto again;
                     51:        /*NOTREACHED*/
                     52: }
                     53: 
                     54: static
                     55: getdebug(msg)
                     56:        char *msg;
                     57: {
                     58:        char buf[132];
                     59: 
                     60:        printf("%s", msg);
                     61:        gets(buf);
                     62:        return (atoi(buf));
                     63: }
                     64: 
                     65: /*
                     66:  * Allocate memory on a page-aligned address.
                     67:  * Round allocated chunk to a page multiple to
                     68:  * ease next request.
                     69:  */
                     70: static char *
                     71: malloc(size)
                     72:        int size;
                     73: {
                     74:        static caddr_t last = 0;
                     75:        char *result;
                     76: 
                     77:        if (last == 0)
                     78:                last = (caddr_t)(((int)&end + 511) & ~0x1ff);
                     79:        size = (size + 511) & ~0x1ff;
                     80:        result = (char *)last;
                     81:        last += size;
                     82:        return (result);
                     83: }

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