/* $NetBSD: rd.c,v 1.15.2.1 2024/06/22 10:57:10 martin Exp $ */ /* * Copyright (c) 1988 University of Utah. * Copyright (c) 1982, 1990, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * the Systems Programming Group of the University of Utah Computer * Science Department. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * from: Utah Hdr: rd.c 1.20 92/12/21 * * @(#)rd.c 8.1 (Berkeley) 7/15/93 */ /* * CS80/SS80 disk driver */ #include #include #include #include #include #include #include static struct rd_iocmd rd_ioc; static struct rd_rscmd rd_rsc; static struct rd_stat rd_stat; static struct rd_ssmcmd rd_ssmc; static struct disklabel rdlabel; struct rdminilabel { u_short npart; u_long offset[MAXPARTITIONS]; }; struct rd_softc { int sc_ctlr; int sc_unit; int sc_part; char sc_retry; char sc_alive; short sc_type; struct rdminilabel sc_pinfo; }; #define RDRETRY 5 struct rdidentinfo { short ri_hwid; short ri_maxunum; int ri_nblocks; }; static int rdinit(int, int); static int rdident(int, int); static void rdreset(int, int); static int rdgetinfo(struct rd_softc *); static int rderror(int, int, int); static struct rd_softc rd_softc[NHPIB][NRD]; static const struct rdidentinfo rdidentinfo[] = { [RD7945A] = { RD7946AID, 0, NRD7945ABLK }, [RD9134D] = { RD9134DID, 1, NRD9134DBLK }, [RD9122S] = { RD9134LID, 1, NRD9122SBLK }, [RD7912P] = { RD7912PID, 0, NRD7912PBLK }, [RD7914P] = { RD7914PID, 0, NRD7914PBLK }, [RD7958A] = { RD7958AID, 0, NRD7958ABLK }, [RD7957A] = { RD7957AID, 0, NRD7957ABLK }, [RD7933H] = { RD7933HID, 0, NRD7933HBLK }, [RD9134L] = { RD9134LID, 1, NRD9134LBLK }, [RD7936H] = { RD7936HID, 0, NRD7936HBLK }, [RD7937H] = { RD7937HID, 0, NRD7937HBLK }, [RD7914CT] = { RD7914CTID, 0, NRD7914PBLK }, [RD7946A] = { RD7946AID, 0, NRD7945ABLK }, [RD9122D] = { RD9134LID, 1, NRD9122SBLK }, [RD7957B] = { RD7957BID, 0, NRD7957BBLK }, [RD7958B] = { RD7958BID, 0, NRD7958BBLK }, [RD7959B] = { RD7959BID, 0, NRD7959BBLK }, [RD2200A] = { RD2200AID, 0, NRD2200ABLK }, [RD2203A] = { RD2203AID, 0, NRD2203ABLK }, [RD2202A] = { RD2202AID, 0, NRD2202ABLK }, [RD7908A] = { RD7908AID, 0, NRD7908ABLK }, [RD7911A] = { RD7911AID, 0, NRD7911ABLK }, [RD7941A] = { RD7946AID, 0, NRD7941ABLK } }; static const int numrdidentinfo = sizeof(rdidentinfo) / sizeof(rdidentinfo[0]); static int rdinit(int ctlr, int unit) { struct rd_softc *rs = &rd_softc[ctlr][unit]; rs->sc_type = rdident(ctlr, unit); if (rs->sc_type < 0) return 0; rs->sc_alive = 1; return 1; } static void rdreset(int ctlr, int unit) { uint8_t stat; rd_ssmc.c_unit = C_SUNIT(0); rd_ssmc.c_cmd = C_SSM; rd_ssmc.c_refm = REF_MASK; rd_ssmc.c_fefm = FEF_MASK; rd_ssmc.c_aefm = AEF_MASK; rd_ssmc.c_iefm = IEF_MASK; hpibsend(ctlr, unit, C_CMD, (uint8_t *)&rd_ssmc, sizeof(rd_ssmc)); hpibswait(ctlr, unit); hpibrecv(ctlr, unit, C_QSTAT, &stat, 1); } static int rdident(int ctlr, int unit) { struct cs80_describe desc; uint8_t stat, cmd[3]; char name[7]; int id, i; id = hpibid(ctlr, unit); if ((id & 0x200) == 0) return -1; for (i = 0; i < numrdidentinfo; i++) if (id == rdidentinfo[i].ri_hwid) break; if (i == numrdidentinfo) return -1; id = i; rdreset(ctlr, unit); cmd[0] = C_SUNIT(0); cmd[1] = C_SVOL(0); cmd[2] = C_DESC; hpibsend(ctlr, unit, C_CMD, cmd, sizeof(cmd)); hpibrecv(ctlr, unit, C_EXEC, (uint8_t *)&desc, sizeof(desc)); hpibrecv(ctlr, unit, C_QSTAT, &stat, sizeof(stat)); memset(name, 0, sizeof(name)); if (!stat) { int n = desc.d_name; for (i = 5; i >= 0; i--) { name[i] = (n & 0xf) + '0'; n >>= 4; } } /* * Take care of a couple of anomolies: * 1. 7945A and 7946A both return same HW id * 2. 9122S and 9134D both return same HW id * 3. 9122D and 9134L both return same HW id */ switch (rdidentinfo[id].ri_hwid) { case RD7946AID: if (memcmp(name, "079450", 6) == 0) id = RD7945A; else if (memcmp(name, "079410", 6) == 0) id = RD7941A; else id = RD7946A; break; case RD9134LID: if (memcmp(name, "091340", 6) == 0) id = RD9134L; else id = RD9122D; break; case RD9134DID: if (memcmp(name, "091220", 6) == 0) id = RD9122S; else id = RD9134D; break; } return id; } static char io_buf[MAXBSIZE]; static int rdgetinfo(struct rd_softc *rs) { struct rdminilabel *pi = &rs->sc_pinfo; struct disklabel *lp = &rdlabel; char *msg; int err, savepart; size_t i; memset((void *)lp, 0, sizeof *lp); lp->d_secsize = DEV_BSIZE; /* Disklabel is always from RAW_PART. */ savepart = rs->sc_part; rs->sc_part = RAW_PART; err = rdstrategy(rs, F_READ, LABELSECTOR, lp->d_secsize ? lp->d_secsize : DEV_BSIZE, io_buf, &i); rs->sc_part = savepart; if (err) { printf("rdgetinfo: rdstrategy error %d\n", err); return 0; } msg = getdisklabel(io_buf, lp); if (msg) { printf("rd(%d,%d,%d): WARNING: %s\n", rs->sc_ctlr, rs->sc_unit, rs->sc_part, msg); pi->npart = 3; pi->offset[0] = pi->offset[1] = -1; pi->offset[2] = 0; } else { pi->npart = lp->d_npartitions; for (i = 0; i < pi->npart; i++) pi->offset[i] = lp->d_partitions[i].p_size == 0 ? -1 : lp->d_partitions[i].p_offset; } return 1; } int rdopen(struct open_file *f, ...) { va_list ap; int ctlr, unit, part; struct rd_softc *rs; va_start(ap, f); ctlr = va_arg(ap, int); unit = va_arg(ap, int); part = va_arg(ap, int); va_end(ap); if (ctlr >= NHPIB || hpibalive(ctlr) == 0) return EADAPT; if (unit >= NRD) return ECTLR; rs = &rd_softc[ctlr][unit]; rs->sc_part = part; rs->sc_unit = unit; rs->sc_ctlr = ctlr; if (rs->sc_alive == 0) { if (rdinit(ctlr, unit) == 0) return ENXIO; if (rdgetinfo(rs) == 0) return ERDLAB; } if (part != RAW_PART && /* always allow RAW_PART to be opened */ (part >= rs->sc_pinfo.npart || rs->sc_pinfo.offset[part] == -1)) return EPART; f->f_devdata = (void *)rs; return 0; } int rdclose(struct open_file *f) { struct rd_softc *rs = f->f_devdata; /* * Mark the disk `not alive' so that the disklabel * will be re-loaded at next open. */ memset(rs, 0, sizeof(struct rd_softc)); f->f_devdata = NULL; return 0; } int rdstrategy(void *devdata, int func, daddr_t dblk, size_t size, void *v_buf, size_t *rsize) { uint8_t *buf = v_buf; struct rd_softc *rs = devdata; int ctlr = rs->sc_ctlr; int unit = rs->sc_unit; daddr_t blk; uint8_t stat; if (size == 0) return 0; /* * Don't do partition translation on the `raw partition'. */ blk = (dblk + ((rs->sc_part == RAW_PART) ? 0 : rs->sc_pinfo.offset[rs->sc_part])); rs->sc_retry = 0; rd_ioc.c_unit = C_SUNIT(0); rd_ioc.c_volume = C_SVOL(0); rd_ioc.c_saddr = C_SADDR; rd_ioc.c_hiaddr = 0; rd_ioc.c_addr = RDBTOS(blk); rd_ioc.c_nop2 = C_NOP; rd_ioc.c_slen = C_SLEN; rd_ioc.c_len = size; rd_ioc.c_cmd = func == F_READ ? C_READ : C_WRITE; retry: hpibsend(ctlr, unit, C_CMD, (uint8_t *)&rd_ioc.c_unit, sizeof(rd_ioc) - 2); hpibswait(ctlr, unit); hpibgo(ctlr, unit, C_EXEC, buf, size, func); hpibswait(ctlr, unit); hpibrecv(ctlr, unit, C_QSTAT, &stat, 1); if (stat) { if (rderror(ctlr, unit, rs->sc_part) == 0) return EIO; if (++rs->sc_retry > RDRETRY) return EIO; goto retry; } *rsize = size; return 0; } static int rderror(int ctlr, int unit, int part) { uint8_t stat; rd_rsc.c_unit = C_SUNIT(0); rd_rsc.c_sram = C_SRAM; rd_rsc.c_ram = C_RAM; rd_rsc.c_cmd = C_STATUS; hpibsend(ctlr, unit, C_CMD, (uint8_t *)&rd_rsc, sizeof(rd_rsc)); hpibrecv(ctlr, unit, C_EXEC, (uint8_t *)&rd_stat, sizeof(rd_stat)); hpibrecv(ctlr, unit, C_QSTAT, &stat, 1); if (stat) { printf("rd(%d,%d,0,%d): request status fail %d\n", ctlr, unit, part, stat); return 0; } printf("rd(%d,%d,0,%d) err: vu 0x%x", ctlr, unit, part, rd_stat.c_vu); if ((rd_stat.c_aef & AEF_UD) || (rd_stat.c_ief & (IEF_MD|IEF_RD))) printf(", block %d", rd_stat.c_blk); printf(", R0x%x F0x%x A0x%x I0x%x\n", rd_stat.c_ref, rd_stat.c_fef, rd_stat.c_aef, rd_stat.c_ief); return 1; }