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Annotation of 43BSD/sys/stand/up.old.c, revision 1.1

1.1     ! root        1: /*     up.old.c        7.1     86/06/05        */
        !             2: 
        !             3: #include "../machine/pte.h"
        !             4: 
        !             5: #include "../h/param.h"
        !             6: #include "../h/inode.h"
        !             7: #include "../h/fs.h"
        !             8: 
        !             9: #include "../vaxuba/upreg.h"
        !            10: #include "../vaxuba/ubareg.h"
        !            11: 
        !            12: #include "saio.h"
        !            13: #include "savax.h"
        !            14: 
        !            15: u_short        ubastd[] = { 0776700 };
        !            16: char   up_gottype[MAXNUBA*8];
        !            17: char   up_type[MAXNUBA*8];
        !            18: extern struct st upst[];
        !            19: 
        !            20: upopen(io)
        !            21:        register struct iob *io;
        !            22: {
        !            23:        register struct updevice *upaddr =
        !            24:            (struct updevice *)ubamem(io->i_unit, ubastd[0]);
        !            25:        register struct st *st;
        !            26: 
        !            27:        while ((upaddr->upcs1 & UP_DVA) == 0)
        !            28:                ;
        !            29:        if (up_gottype[io->i_unit] == 0) {
        !            30:                up_type[io->i_unit] = upmaptype(io->i_unit, upaddr);
        !            31:                if (up_type[io->i_unit] < 0)
        !            32:                        _stop("unknown drive type");
        !            33:                up_gottype[io->i_unit] = 1;
        !            34:        }
        !            35:        st = &upst[up_type[io->i_unit]];
        !            36:        if (io->i_boff < 0 || io->i_boff > 7 || st->off[io->i_boff] == -1)
        !            37:                _stop("up bad unit");
        !            38:        io->i_boff = st->off[io->i_boff] * st->nspc;
        !            39: }
        !            40: 
        !            41: upstrategy(io, func)
        !            42:        register struct iob *io;
        !            43: {
        !            44:        int unit, nspc, ns, cn, tn, sn;
        !            45:        daddr_t bn;
        !            46:        int info;
        !            47:        register struct updevice *upaddr =
        !            48:            (struct updevice *)ubamem(io->i_unit, ubastd[0]);
        !            49:        register struct st *st = &upst[up_type[io->i_unit]];
        !            50: 
        !            51:        unit = io->i_unit;
        !            52:        bn = io->i_bn;
        !            53:        cn = bn/st->nspc;
        !            54:        sn = bn%st->nspc;
        !            55:        tn = sn/st->nsect;
        !            56:        sn = sn%st->nsect;
        !            57:        upaddr->upcs2 = unit % 8;
        !            58:        if ((upaddr->upds & UPDS_VV) == 0) {
        !            59:                upaddr->upcs1 = UP_DCLR|UP_GO;
        !            60:                upaddr->upcs1 = UP_PRESET|UP_GO;
        !            61:                upaddr->upof = UPOF_FMT22;
        !            62:        }
        !            63:        if ((upaddr->upds & UPDS_DREADY) != UPDS_DREADY)
        !            64:                _stop("up not ready");
        !            65:        info = ubasetup(io, 1);
        !            66:        upaddr->updc = cn;
        !            67:        upaddr->upda = (tn << 8) + sn;
        !            68:        upaddr->upba = info;
        !            69:        upaddr->upwc = -io->i_cc / sizeof (short);
        !            70:        if (func == READ)
        !            71:                upaddr->upcs1 = UP_RCOM|UP_GO;
        !            72:        else
        !            73:                upaddr->upcs1 = UP_WCOM|UP_GO;
        !            74:        do {
        !            75:                DELAY(25);
        !            76:        } while ((upaddr->upcs1 & UP_RDY) == 0);
        !            77:        if (upaddr->upds & UPDS_ERR) {
        !            78:                printf("up error: (cyl,trk,sec)=(%d,%d,%d) cs2=%b er1=%b er2=%b\n",
        !            79:                    cn, tn, sn,
        !            80:                    upaddr->upcs2, UPCS2_BITS, upaddr->uper1, UPER1_BITS,
        !            81:                    upaddr->uper2, UPER2_BITS);
        !            82:                return (-1);
        !            83:        }
        !            84:        ubafree(io, info);
        !            85:        return (io->i_cc + (upaddr->upwc * sizeof (short)));
        !            86: }
        !            87: 
        !            88: /*ARGSUSED*/
        !            89: upioctl(io, cmd, arg)
        !            90:        struct iob *io;
        !            91:        int cmd;
        !            92:        caddr_t arg;
        !            93: {
        !            94: 
        !            95:        return (ECMD);
        !            96: }

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