sbin/scsi/scsi.c

/*
 * Written By Julian ELischer
 * Copyright julian Elischer 1993.
 * Permission is granted to use or redistribute this file in any way as long
 * as this notice remains. Julian Elischer does not guarantee that this file
 * is totally correct for any given task and users of this file must
 * accept responsibility for any damage that occurs from the application of this
 * file.
 *
 * (julian@tfs.com julian@dialix.oz.au)
 *
 *      $Id$
 */

#include <stdio.h>
#include <sys/scsiio.h>
#include <sys/file.h>
#include <scsi/scsi_all.h>
void show_mem();
int     fd;
int     debuglevel;
int     dflag,inqflag;
int     reprobe;
int     bus = -1;       /* all busses */
int     targ = -1;      /* all targs */
int     lun = 0;        /* just lun 0 */

main(int argc, char **argv, char **envp)
{
        struct scsi_addr scaddr;
        struct scsi_inquiry_data dat;

        procargs(argc,argv,envp);
        if(reprobe) {
                scaddr.scbus = bus;
                scaddr.target = targ;
                scaddr.lun = lun;

                if (ioctl(fd,SCIOCREPROBE,&scaddr) == -1)
                {
                        perror("ioctl");
                }
        }
        if(dflag) {
                if (ioctl(fd,SCIOCDEBUG,&debuglevel) == -1) {
                        perror("ioctl [SCIODEBUG]");
                        exit(1);
                }
        }

        if(inqflag) {
                inq(fd,&dat);
                show_mem(&dat,sizeof(dat));
        }
}

/*
 * Do a scsi operation asking a device what it is
 * Use the scsi_cmd routine in the switch table.
 */
int inq(fd,inqbuf)
        int     fd;
        struct scsi_inquiry_data *inqbuf;
{
        struct scsi_inquiry *cmd;
        scsireq_t       req;
        cmd = (struct scsi_inquiry *) req.cmd;

        bzero(&req,sizeof(req));

        cmd->op_code = INQUIRY;
        cmd->length = sizeof(struct scsi_inquiry_data);

        req.flags = SCCMD_READ;         /* info about the request status and type */
        req.timeout = 2000;
        req.cmdlen = sizeof(*cmd);
        req.databuf = (caddr_t)inqbuf;  /* address in user space of buffer */
        req.datalen = sizeof(*inqbuf);  /* size of user buffer */
        if (ioctl(fd,SCIOCCOMMAND,&req) == -1)
        {
                perror("ioctl");
                exit (1);
        }
}


void
show_mem(address, num)
        unsigned char *address;
        int num;
{
        int x, y;
        printf("------------------------------");
        for (y = 0; y < num; y += 1) {
                if (!(y % 16))
                        printf("\n%03d: ", y);
                printf("%02x ", *address++);
        }
        printf("\n------------------------------\n");
}