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Annotation of researchv10no/cmd/worm/scsi/getstatus.c, revision 1.1

1.1     ! root        1: #include       <stddef.h>
        !             2: #include       <stdio.h>
        !             3: #include       "scsi.h"
        !             4: #include       "juke.h"
        !             5: 
        !             6: struct Jstatus j_status;
        !             7: 
        !             8: static
        !             9: dolun(struct Lunstatus *lun, uchar *u)
        !            10: {
        !            11:        lun->poweron = ((*u)&0x80) == 0;
        !            12:        lun->diskin = ((*u)&0x40) != 0;
        !            13:        lun->ready = ((*u)&0x01) != 0;
        !            14:        u++;
        !            15:        lun->diskindrive = ((*u)&0x80) != 0;
        !            16:        lun->driveshelf = (*u)&0x7F;
        !            17:        u++;
        !            18:        lun->shelfvalid = ((*u)&0x80) != 0;
        !            19:        lun->retshelf = (*u)&0x7F;
        !            20: }
        !            21: 
        !            22: j_getstatus(char *err)
        !            23: {
        !            24:        struct scsi_cmd cmd;
        !            25:        struct scsi_return ret;
        !            26:        int i;
        !            27: 
        !            28:        set6(cmd, 0x1D, 0, 0, 0, 10, 0);
        !            29:        memset(cmd.data, 0, 10);
        !            30:        cmd.data[0] = 0xE2;
        !            31:        if(s_io(1, &cmd, 10, &ret, 0, err))
        !            32:                return(-1);
        !            33:        set6(cmd, 0x1C, 0, 0, 0, 128, 0);
        !            34:        if(s_io(0, &cmd, 0, &ret, 128, err))
        !            35:                return(-1);
        !            36:        for(i = 0; i < 8; i++)
        !            37:                dolun(&j_status.lun[i], &ret.data[16+4*i]);
        !            38:        for(i = 0; i < NSHELF; i++)
        !            39:                j_status.shelf[i] = ret.data[48+i];
        !            40:        j_status.iounit = ret.data[98];
        !            41:        j_status.carrier = ret.data[99];
        !            42:        j_status.udrive = ret.data[100];
        !            43:        j_status.ldrive = ret.data[101];
        !            44:        return(0);
        !            45: }

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