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Annotation of 43BSD/sys/stand/hp.old.c, revision 1.1.1.1

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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