410 lines
11 KiB
C
410 lines
11 KiB
C
/* $NetBSD: rd.c,v 1.10 1995/09/23 17:19:59 thorpej Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1982, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: Utah Hdr: rd.c 1.20 92/12/21
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*
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* @(#)rd.c 8.1 (Berkeley) 7/15/93
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*/
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/*
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* CS80/SS80 disk driver
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*/
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#include <sys/param.h>
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#include <sys/disklabel.h>
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#include "stand.h"
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#include "samachdep.h"
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#include <hp300/dev/rdreg.h>
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struct rd_iocmd rd_ioc;
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struct rd_rscmd rd_rsc;
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struct rd_stat rd_stat;
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struct rd_ssmcmd rd_ssmc;
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struct disklabel rdlabel;
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struct rdminilabel {
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u_short npart;
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u_long offset[MAXPARTITIONS];
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};
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struct rd_softc {
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int sc_ctlr;
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int sc_unit;
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int sc_part;
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char sc_retry;
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char sc_alive;
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short sc_type;
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struct rdminilabel sc_pinfo;
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} rd_softc[NHPIB][NRD];
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#define RDRETRY 5
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struct rdidentinfo {
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short ri_hwid;
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short ri_maxunum;
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int ri_nblocks;
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} rdidentinfo[] = {
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{ RD7946AID, 0, 108416 },
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{ RD9134DID, 1, 29088 },
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{ RD9134LID, 1, 1232 },
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{ RD7912PID, 0, 128128 },
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{ RD7914PID, 0, 258048 },
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{ RD7958AID, 0, 255276 },
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{ RD7957AID, 0, 159544 },
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{ RD7933HID, 0, 789958 },
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{ RD9134LID, 1, 77840 },
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{ RD7936HID, 0, 600978 },
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{ RD7937HID, 0, 1116102 },
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{ RD7914CTID, 0, 258048 },
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{ RD7946AID, 0, 108416 },
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{ RD9134LID, 1, 1232 },
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{ RD7957BID, 0, 159894 },
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{ RD7958BID, 0, 297108 },
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{ RD7959BID, 0, 594216 },
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{ RD2200AID, 0, 654948 },
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{ RD2203AID, 0, 1309896 }
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};
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int numrdidentinfo = sizeof(rdidentinfo) / sizeof(rdidentinfo[0]);
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rdinit(ctlr, unit)
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int ctlr, unit;
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{
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register struct rd_softc *rs = &rd_softc[ctlr][unit];
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u_char stat;
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rs->sc_type = rdident(ctlr, unit);
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if (rs->sc_type < 0)
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return (0);
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rs->sc_alive = 1;
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return (1);
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}
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rdreset(ctlr, unit)
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register int ctlr, unit;
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{
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u_char stat;
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rd_ssmc.c_unit = C_SUNIT(0);
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rd_ssmc.c_cmd = C_SSM;
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rd_ssmc.c_refm = REF_MASK;
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rd_ssmc.c_fefm = FEF_MASK;
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rd_ssmc.c_aefm = AEF_MASK;
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rd_ssmc.c_iefm = IEF_MASK;
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hpibsend(ctlr, unit, C_CMD, &rd_ssmc, sizeof(rd_ssmc));
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hpibswait(ctlr, unit);
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hpibrecv(ctlr, unit, C_QSTAT, &stat, 1);
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}
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rdident(ctlr, unit)
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register int ctlr, unit;
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{
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struct rd_describe desc;
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u_char stat, cmd[3];
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char name[7];
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register int id, i;
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id = hpibid(ctlr, unit);
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if ((id & 0x200) == 0)
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return(-1);
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for (i = 0; i < numrdidentinfo; i++)
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if (id == rdidentinfo[i].ri_hwid)
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break;
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if (i == numrdidentinfo)
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return(-1);
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id = i;
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rdreset(ctlr, unit);
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cmd[0] = C_SUNIT(0);
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cmd[1] = C_SVOL(0);
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cmd[2] = C_DESC;
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hpibsend(ctlr, unit, C_CMD, cmd, sizeof(cmd));
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hpibrecv(ctlr, unit, C_EXEC, &desc, 37);
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hpibrecv(ctlr, unit, C_QSTAT, &stat, sizeof(stat));
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bzero(name, sizeof(name));
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if (!stat) {
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register int n = desc.d_name;
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for (i = 5; i >= 0; i--) {
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name[i] = (n & 0xf) + '0';
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n >>= 4;
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}
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}
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/*
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* Take care of a couple of anomolies:
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* 1. 7945A and 7946A both return same HW id
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* 2. 9122S and 9134D both return same HW id
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* 3. 9122D and 9134L both return same HW id
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*/
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switch (rdidentinfo[id].ri_hwid) {
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case RD7946AID:
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if (bcmp(name, "079450", 6) == 0)
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id = RD7945A;
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else
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id = RD7946A;
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break;
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case RD9134LID:
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if (bcmp(name, "091340", 6) == 0)
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id = RD9134L;
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else
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id = RD9122D;
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break;
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case RD9134DID:
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if (bcmp(name, "091220", 6) == 0)
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id = RD9122S;
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else
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id = RD9134D;
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break;
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}
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return(id);
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}
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#ifdef COMPAT_NOLABEL
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int rdcyloff[][8] = {
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{ 1, 143, 0, 143, 0, 0, 323, 503, }, /* 7945A */
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{ 1, 167, 0, 0, 0, 0, 0, 0, }, /* 9134D */
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{ 0, 0, 0, 0, 0, 0, 0, 0, }, /* 9122S */
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{ 0, 71, 0, 221, 292, 542, 221, 0, }, /* 7912P */
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{ 1, 72, 0, 72, 362, 802, 252, 362, }, /* 7914P */
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{ 1, 28, 0, 140, 167, 444, 140, 721, }, /* 7933H */
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{ 1, 200, 0, 200, 0, 0, 450, 600, }, /* 9134L */
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{ 1, 105, 0, 105, 380, 736, 265, 380, }, /* 7957A */
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{ 1, 65, 0, 65, 257, 657, 193, 257, }, /* 7958A */
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{ 1, 128, 0, 128, 518, 918, 388, 518, }, /* 7957B */
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{ 1, 44, 0, 44, 174, 496, 131, 174, }, /* 7958B */
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{ 1, 44, 0, 44, 218, 1022,174, 218, }, /* 7959B */
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{ 1, 37, 0, 37, 183, 857, 147, 183, }, /* 2200A */
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{ 1, 19, 0, 94, 112, 450, 94, 788, }, /* 2203A */
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{ 1, 20, 0, 98, 117, 256, 98, 397, }, /* 7936H */
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{ 1, 11, 0, 53, 63, 217, 53, 371, }, /* 7937H */
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};
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struct rdcompatinfo {
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int nbpc;
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int *cyloff;
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} rdcompatinfo[] = {
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NRD7945ABPT*NRD7945ATRK, rdcyloff[0],
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NRD9134DBPT*NRD9134DTRK, rdcyloff[1],
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NRD9122SBPT*NRD9122STRK, rdcyloff[2],
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NRD7912PBPT*NRD7912PTRK, rdcyloff[3],
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NRD7914PBPT*NRD7914PTRK, rdcyloff[4],
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NRD7958ABPT*NRD7958ATRK, rdcyloff[8],
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NRD7957ABPT*NRD7957ATRK, rdcyloff[7],
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NRD7933HBPT*NRD7933HTRK, rdcyloff[5],
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NRD9134LBPT*NRD9134LTRK, rdcyloff[6],
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NRD7936HBPT*NRD7936HTRK, rdcyloff[14],
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NRD7937HBPT*NRD7937HTRK, rdcyloff[15],
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NRD7914PBPT*NRD7914PTRK, rdcyloff[4],
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NRD7945ABPT*NRD7945ATRK, rdcyloff[0],
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NRD9122SBPT*NRD9122STRK, rdcyloff[2],
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NRD7957BBPT*NRD7957BTRK, rdcyloff[9],
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NRD7958BBPT*NRD7958BTRK, rdcyloff[10],
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NRD7959BBPT*NRD7959BTRK, rdcyloff[11],
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NRD2200ABPT*NRD2200ATRK, rdcyloff[12],
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NRD2203ABPT*NRD2203ATRK, rdcyloff[13],
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};
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int nrdcompatinfo = sizeof(rdcompatinfo) / sizeof(rdcompatinfo[0]);
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#endif
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char io_buf[MAXBSIZE];
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rdgetinfo(rs)
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register struct rd_softc *rs;
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{
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register struct rdminilabel *pi = &rs->sc_pinfo;
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register struct disklabel *lp = &rdlabel;
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char *msg, *getdisklabel();
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int rdstrategy(), err;
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size_t i;
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bzero((caddr_t)lp, sizeof *lp);
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lp->d_secsize = DEV_BSIZE;
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if (err = rdstrategy(rs, F_READ,
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LABELSECTOR,
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lp->d_secsize ? lp->d_secsize : DEV_BSIZE,
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io_buf, &i) < 0) {
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printf("rdgetinfo: rdstrategy error %d\n", err);
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return(0);
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}
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msg = getdisklabel(io_buf, lp);
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if (msg) {
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printf("rd(%d,%d,%d): WARNING: %s, ",
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rs->sc_ctlr, rs->sc_unit, rs->sc_part, msg);
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#ifdef COMPAT_NOLABEL
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{
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register struct rdcompatinfo *ci;
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printf("using old default partitioning\n");
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ci = &rdcompatinfo[rs->sc_type];
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pi->npart = 8;
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for (i = 0; i < pi->npart; i++)
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pi->offset[i] = ci->cyloff[i] * ci->nbpc;
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}
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#else
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printf("defining `c' partition as entire disk\n");
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pi->npart = 3;
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pi->offset[0] = pi->offset[1] = -1;
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pi->offset[2] = 0;
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#endif
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} else {
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pi->npart = lp->d_npartitions;
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for (i = 0; i < pi->npart; i++)
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pi->offset[i] = lp->d_partitions[i].p_size == 0 ?
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-1 : lp->d_partitions[i].p_offset;
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}
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return(1);
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}
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rdopen(f, ctlr, unit, part)
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struct open_file *f;
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int ctlr, unit, part;
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{
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register struct rd_softc *rs;
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struct rdinfo *ri;
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if (ctlr >= NHPIB || hpibalive(ctlr) == 0)
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return (EADAPT);
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if (unit >= NRD)
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return (ECTLR);
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rs = &rd_softc[ctlr][unit];
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rs->sc_part = part;
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rs->sc_unit = unit;
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rs->sc_ctlr = ctlr;
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if (rs->sc_alive == 0) {
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if (rdinit(ctlr, unit) == 0)
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return (ENXIO);
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if (rdgetinfo(rs) == 0)
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return (ERDLAB);
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}
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if (part >= rs->sc_pinfo.npart || rs->sc_pinfo.offset[part] == -1)
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return (EPART);
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f->f_devdata = (void *)rs;
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return (0);
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}
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rdclose(f)
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struct open_file *f;
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{
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struct rd_softc *rs = f->f_devdata;
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/*
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* Mark the disk `not alive' so that the disklabel
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* will be re-loaded at next open.
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*/
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bzero(rs, sizeof(struct rd_softc));
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f->f_devdata = NULL;
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return (0);
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}
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rdstrategy(devdata, func, dblk, size, v_buf, rsize)
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void *devdata;
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int func;
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daddr_t dblk;
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size_t size;
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void *v_buf;
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size_t *rsize;
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{
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char *buf = v_buf;
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struct rd_softc *rs = devdata;
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register int ctlr = rs->sc_ctlr;
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register int unit = rs->sc_unit;
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daddr_t blk = (dblk + rs->sc_pinfo.offset[rs->sc_part]);
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char stat;
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if (size == 0)
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return(0);
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rs->sc_retry = 0;
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rd_ioc.c_unit = C_SUNIT(0);
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rd_ioc.c_volume = C_SVOL(0);
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rd_ioc.c_saddr = C_SADDR;
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rd_ioc.c_hiaddr = 0;
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rd_ioc.c_addr = RDBTOS(blk);
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rd_ioc.c_nop2 = C_NOP;
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rd_ioc.c_slen = C_SLEN;
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rd_ioc.c_len = size;
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rd_ioc.c_cmd = func == F_READ ? C_READ : C_WRITE;
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retry:
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hpibsend(ctlr, unit, C_CMD, &rd_ioc.c_unit, sizeof(rd_ioc)-2);
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hpibswait(ctlr, unit);
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hpibgo(ctlr, unit, C_EXEC, buf, size, func);
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hpibswait(ctlr, unit);
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hpibrecv(ctlr, unit, C_QSTAT, &stat, 1);
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if (stat) {
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if (rderror(ctlr, unit, rs->sc_part) == 0)
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return(-1);
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if (++rs->sc_retry > RDRETRY)
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return(-1);
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goto retry;
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}
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*rsize = size;
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return(0);
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}
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rderror(ctlr, unit, part)
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register int ctlr, unit;
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int part;
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{
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register struct rd_softc *rd = &rd_softc[ctlr][unit];
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char stat;
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rd_rsc.c_unit = C_SUNIT(0);
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rd_rsc.c_sram = C_SRAM;
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rd_rsc.c_ram = C_RAM;
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rd_rsc.c_cmd = C_STATUS;
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hpibsend(ctlr, unit, C_CMD, &rd_rsc, sizeof(rd_rsc));
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hpibrecv(ctlr, unit, C_EXEC, &rd_stat, sizeof(rd_stat));
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hpibrecv(ctlr, unit, C_QSTAT, &stat, 1);
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if (stat) {
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printf("rd(%d,%d,0,%d): request status fail %d\n",
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ctlr, unit, part, stat);
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return(0);
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}
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printf("rd(%d,%d,0,%d) err: vu 0x%x",
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ctlr, unit, part, rd_stat.c_vu);
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if ((rd_stat.c_aef & AEF_UD) || (rd_stat.c_ief & (IEF_MD|IEF_RD)))
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printf(", block %d", rd_stat.c_blk);
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printf(", R0x%x F0x%x A0x%x I0x%x\n",
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rd_stat.c_ref, rd_stat.c_fef, rd_stat.c_aef, rd_stat.c_ief);
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return(1);
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}
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