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Annotation of 43BSD/sys/stand/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    7.1 (Berkeley) 6/5/86
                      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 "../h/param.h"
                     14: #include "../h/inode.h"
                     15: #include "../h/fs.h"
                     16: #include "saio.h"
                     17: 
                     18: #define SECTSIZ        512
                     19: 
                     20: extern int end;
                     21: char   *malloc();
                     22: char   *prompt();
                     23: 
                     24: main()
                     25: {
                     26:        char *cp, *bp;
                     27:        int fd, tracksize, debug;
                     28:        register int sector, lastsector;
                     29:        struct st st;
                     30: 
                     31:        printf("Testprogram for stand-alone driver\n\n");
                     32: again:
                     33:        cp = prompt("Enable debugging (1=bse, 2=ecc, 3=bse+ecc)? ");
                     34:        debug = atoi(cp);
                     35:        if (debug < 0)
                     36:                debug = 0;
                     37:        fd = getdevice();
                     38:        ioctl(fd, SAIODEVDATA, (char *)&st);
                     39:        printf("Device data: #cylinders=%d, #tracks=%d, #sectors=%d\n",
                     40:                st.ncyl, st.ntrak, st.nsect);
                     41:        ioctl(fd, SAIODEBUG, (char *)debug);
                     42:        tracksize = st.nsect * 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, 0);
                     47:        lastsector = st.ncyl * st.nspc;
                     48:        for (sector = 0; sector < lastsector; sector += st.nsect) {
                     49:                if (sector && (sector % (st.nspc * 10)) == 0)
                     50:                        printf("cylinder %d\n", sector/st.nspc);
                     51:                read(fd, bp, tracksize);
                     52:        }
                     53:        goto again;
                     54: }
                     55: 
                     56: /*
                     57:  * Prompt and verify a device name from the user.
                     58:  */
                     59: getdevice()
                     60: {
                     61:        register char *cp;
                     62:        register struct devsw *dp;
                     63:        int fd;
                     64: 
                     65: top:
                     66:        cp = prompt("Device to read? ");
                     67:        if ((fd = open(cp, 2)) < 0) {
                     68:                printf("Known devices are: ");
                     69:                for (dp = devsw; dp->dv_name; dp++)
                     70:                        printf("%s ",dp->dv_name);
                     71:                printf("\n");
                     72:                goto top;
                     73:        }
                     74:        return (fd);
                     75: }
                     76: 
                     77: char *
                     78: prompt(msg)
                     79:        char *msg;
                     80: {
                     81:        static char buf[132];
                     82: 
                     83:        printf("%s", msg);
                     84:        gets(buf);
                     85:        return (buf);
                     86: }
                     87: 
                     88: /*
                     89:  * Allocate memory on a page-aligned address.
                     90:  * Round allocated chunk to a page multiple to
                     91:  * ease next request.
                     92:  */
                     93: char *
                     94: malloc(size)
                     95:        int size;
                     96: {
                     97:        char *result;
                     98:        static caddr_t last = 0;
                     99: 
                    100:        if (last == 0)
                    101:                last = (caddr_t)(((int)&end + 511) & ~0x1ff);
                    102:        size = (size + 511) & ~0x1ff;
                    103:        result = (char *)last;
                    104:        last += size;
                    105:        return (result);
                    106: }

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