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

1.1     ! root        1: /*     hp.old.c        7.1     86/06/05        */
        !             2: 
        !             3: /*
        !             4:  * RP??/RM?? disk driver
        !             5:  */
        !             6: #include "../machine/pte.h"
        !             7: 
        !             8: #include "../h/param.h"
        !             9: #include "../h/inode.h"
        !            10: #include "../h/fs.h"
        !            11: 
        !            12: #include "../vaxmba/hpreg.h"
        !            13: #include "../vaxmba/mbareg.h"
        !            14: 
        !            15: #include "saio.h"
        !            16: #include "savax.h"
        !            17: 
        !            18: #define        SECTSIZ 512
        !            19: #define        MASKREG(reg)    ((reg)&0xffff)
        !            20: 
        !            21: extern short hptypes[];
        !            22: 
        !            23: char   hp_type[MAXNMBA*8];
        !            24: extern struct st hpst[];
        !            25: 
        !            26: hpopen(io)
        !            27:        register struct iob *io;
        !            28: {
        !            29:        register unit = io->i_unit;
        !            30:        struct hpdevice *hpaddr = (struct hpdevice *)mbadrv(unit);
        !            31:        register struct st *st;
        !            32:        register i, type = hpaddr->hpdt & MBDT_TYPE;
        !            33: 
        !            34:        mbainit(UNITTOMBA(io->i_unit));
        !            35:        for (i = 0; hptypes[i]; i++)
        !            36:                if (hptypes[i] == type)
        !            37:                        goto found;
        !            38:        _stop("unknown drive type");
        !            39: found:
        !            40:        hpaddr->hpcs1 = HP_DCLR|HP_GO;          /* init drive */
        !            41:        hpaddr->hpcs1 = HP_PRESET|HP_GO;
        !            42:        hpaddr->hpof = HPOF_FMT22;
        !            43:        hp_type[unit] = hpmaptype(hpaddr, i, unit);
        !            44:        st = &hpst[hp_type[unit]];
        !            45:        if (io->i_boff < 0 || io->i_boff > 7 ||
        !            46:            st->off[io->i_boff]== -1)
        !            47:                _stop("hp bad minor");
        !            48:        io->i_boff = st->off[io->i_boff] * st->nspc;
        !            49: }
        !            50: 
        !            51: hpstrategy(io, func)
        !            52:        register struct iob *io;
        !            53: {
        !            54:        int unit = io->i_unit;
        !            55:        daddr_t bn = io->i_bn;
        !            56:        struct hpdevice *hpaddr = (struct hpdevice *)mbadrv(unit);
        !            57:        struct st *st = &hpst[hp_type[unit]];
        !            58:        int cn, tn, sn;
        !            59: 
        !            60:        if ((hpaddr->hpds & HPDS_VV) == 0) {
        !            61:                hpaddr->hpcs1 = HP_DCLR|HP_GO;
        !            62:                hpaddr->hpcs1 = HP_PRESET|HP_GO;
        !            63:                hpaddr->hpof = HPOF_FMT22;
        !            64:        }
        !            65:        cn = bn/st->nspc;
        !            66:        sn = bn%st->nspc;
        !            67:        tn = sn/st->nsect;
        !            68:        sn = sn%st->nsect;
        !            69:        hpaddr->hpdc = cn;
        !            70:        hpaddr->hpda = (tn << 8) + sn;
        !            71:        mbastart(io, func);
        !            72:        while ((hpaddr->hpds & HPDS_DRY) == 0)
        !            73:                ;
        !            74:        if (hpaddr->hpds&HPDS_ERR) {
        !            75:                printf("hp error: sn [%d-%d) ds=%b er1=%b\n",
        !            76:                    bn, bn + io->i_cc/SECTSIZ, MASKREG(hpaddr->hpds), HPDS_BITS,
        !            77:                    MASKREG(hpaddr->hper1), HPER1_BITS);
        !            78:                return (-1);
        !            79:        }
        !            80:        return (io->i_cc);
        !            81: }
        !            82: 
        !            83: /*ARGSUSED*/
        !            84: hpioctl(io, cmd, arg)
        !            85:        struct iob *io;
        !            86:        int cmd;
        !            87:        caddr_t arg;
        !            88: {
        !            89: 
        !            90:        return (ECMD);
        !            91: }

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