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Annotation of 43BSDTahoe/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    7.3 (Berkeley) 3/4/88
                      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 "inode.h"
                     15: #include "fs.h"
                     16: #include "disklabel.h"
                     17: 
                     18: #include "saio.h"
                     19: 
                     20: #define SECTSIZ        512
                     21: 
                     22: extern int end;
                     23: char   *malloc();
                     24: 
                     25: main()
                     26: {
                     27:        register int fd, sector, lastsector, tracksize;
                     28:        register char *bp;
                     29:        struct disklabel dl;
                     30:        int debug;
                     31: 
                     32:        printf("Testprogram for stand-alone driver\n\n");
                     33: again:
                     34:        debug = getdebug("Enable debugging (0=none, 1=bse, 2=ecc, 3=bse+ecc)? ");
                     35:        if (debug < 0)
                     36:                debug = 0;
                     37:        fd = getfile("Device to read?", 2);
                     38:        ioctl(fd, SAIODEVDATA, &dl);
                     39:        printf("Device data: #cylinders=%d, #tracks=%d, #sectors=%d\n",
                     40:                dl.d_ncylinders, dl.d_ntracks, dl.d_nsectors);
                     41:        ioctl(fd, SAIODEBUG, (char *)debug);
                     42:        tracksize = dl.d_nsectors * SECTSIZ;
                     43:        bp = malloc(tracksize);
                     44:        printf("Reading in %d byte records\n", tracksize);
                     45:        printf("Start ...make sure drive is on-line\n");
                     46:        lseek(fd, 0, L_SET);
                     47:        lastsector = dl.d_ncylinders * dl.d_secpercyl;
                     48:        for (sector = 0; sector < lastsector; sector += dl.d_nsectors) {
                     49:                if (sector && (sector % (dl.d_secpercyl * 10)) == 0)
                     50:                        printf("cylinder %d\n", sector/dl.d_secpercyl);
                     51:                read(fd, bp, tracksize);
                     52:        }
                     53:        goto again;
                     54:        /*NOTREACHED*/
                     55: }
                     56: 
                     57: static
                     58: getdebug(msg)
                     59:        char *msg;
                     60: {
                     61:        char buf[132];
                     62: 
                     63:        printf("%s", msg);
                     64:        gets(buf);
                     65:        return (atoi(buf));
                     66: }
                     67: 
                     68: /*
                     69:  * Allocate memory on a page-aligned address.
                     70:  * Round allocated chunk to a page multiple to
                     71:  * ease next request.
                     72:  */
                     73: static char *
                     74: malloc(size)
                     75:        int size;
                     76: {
                     77:        static caddr_t last = 0;
                     78:        char *result;
                     79: 
                     80:        if (last == 0)
                     81:                last = (caddr_t)(((int)&end + 511) & ~0x1ff);
                     82:        size = (size + 511) & ~0x1ff;
                     83:        result = (char *)last;
                     84:        last += size;
                     85:        return (result);
                     86: }

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