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Annotation of 42BSD/sys/stand/hp.old.c, revision 1.1.1.1

1.1       root        1: /*     hp.old.c        6.1     83/07/29        */
                      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        MASKREG(reg)    ((reg)&0xffff)
                     19: 
                     20: short  hptypes[] = {
                     21:        MBDT_RM03,
                     22:        MBDT_RM05,
                     23:        MBDT_RP06,
                     24:        MBDT_RM80,
                     25:        MBDT_RP05,
                     26:        MBDT_RP07,
                     27:        MBDT_ML11A,
                     28:        MBDT_ML11B,
                     29:        -1,             /* 9755 */
                     30:        -1,             /* 9730 */
                     31:        -1,             /* Capricorn */
                     32:        -1,             /* Eagle */
                     33:        MBDT_RM02,      /* actually something else */
                     34:        -1,             /* 9300 */
                     35:        0
                     36: };
                     37: 
                     38: #define RP06 (hptypes[hp_type[unit]] <= MBDT_RP06)
                     39: #define ML11 (hptypes[hp_type[unit]] == MBDT_ML11A)
                     40: #define RM80 (hptypes[hp_type[unit]] == MBDT_RM80)
                     41: 
                     42: char   hp_type[MAXNMBA*8] = { 0 };
                     43: extern struct st hpst[];
                     44: 
                     45: hpopen(io)
                     46:        register struct iob *io;
                     47: {
                     48:        register unit = io->i_unit;
                     49:        struct hpdevice *hpaddr = (struct hpdevice *)mbadrv(unit);
                     50:        register struct st *st;
                     51: 
                     52:        mbainit(UNITTOMBA(io->i_unit));
                     53:        if (hp_type[unit] == 0) {
                     54:                register i, type = hpaddr->hpdt & MBDT_TYPE;
                     55: 
                     56:                for (i = 0; hptypes[i]; i++)
                     57:                        if (hptypes[i] == type)
                     58:                                goto found;
                     59:                _stop("unknown drive type");
                     60: found:
                     61:                hpaddr->hpcs1 = HP_DCLR|HP_GO;          /* init drive */
                     62:                hpaddr->hpcs1 = HP_PRESET|HP_GO;
                     63:                if (type != MBDT_ML11A && type != MBDT_ML11B)
                     64:                        hpaddr->hpof = HPOF_FMT22;
                     65:                hp_type[unit] = hpmaptype(hpaddr, i, unit);
                     66:        }
                     67:        st = &hpst[hp_type[unit]];
                     68:        if (io->i_boff < 0 || io->i_boff > 7 ||
                     69:            st->off[io->i_boff]== -1)
                     70:                _stop("hp bad minor");
                     71:        io->i_boff = st->off[io->i_boff] * st->nspc;
                     72: }
                     73: 
                     74: hpstrategy(io, func)
                     75:        register struct iob *io;
                     76: {
                     77:        int unit = io->i_unit;
                     78:        daddr_t bn = io->i_bn;
                     79:        struct hpdevice *hpaddr = (struct hpdevice *)mbadrv(unit);
                     80:        struct st *st = &hpst[hp_type[unit]];
                     81:        int cn, tn, sn;
                     82: 
                     83:        if ((hpaddr->hpds & HPDS_VV) == 0) {
                     84:                hpaddr->hpcs1 = HP_DCLR|HP_GO;
                     85:                hpaddr->hpcs1 = HP_PRESET|HP_GO;
                     86:                if (!ML11)
                     87:                        hpaddr->hpof = HPOF_FMT22;
                     88:        }
                     89:        cn = bn/st->nspc;
                     90:        sn = bn%st->nspc;
                     91:        tn = sn/st->nsect;
                     92:        sn = sn%st->nsect;
                     93:        if (ML11)
                     94:                hpaddr->hpda = bn;
                     95:        else {
                     96:                hpaddr->hpdc = cn;
                     97:                hpaddr->hpda = (tn << 8) + sn;
                     98:        }
                     99:        mbastart(io, func);
                    100:        while ((hpaddr->hpds & HPDS_DRY) == 0)
                    101:                ;
                    102:        if (hpaddr->hpds&HPDS_ERR) {
                    103:                printf("hp error: (cyl,trk,sec)=(%d,%d,%d) ds=%b er1=%b\n",
                    104:                    cn, tn, sn, MASKREG(hpaddr->hpds), HPDS_BITS,
                    105:                    MASKREG(hpaddr->hper1), HPER1_BITS);
                    106:                return (-1);
                    107:        }
                    108:        return (io->i_cc);
                    109: }
                    110: 
                    111: /*ARGSUSED*/
                    112: hpioctl(io, cmd, arg)
                    113:        struct iob *io;
                    114:        int cmd;
                    115:        caddr_t arg;
                    116: {
                    117: 
                    118:        return (ECMD);
                    119: }

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