1 /*
2 * Copyright (c) 1988 University of Utah.
3 * Copyright (c) 1982, 1990, 1993
4 * The Regents of the University of California. All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * the Systems Programming Group of the University of Utah Computer
8 * Science Department.
9 *
10 * %sccs.include.redist.c%
11 *
12 * from: Utah $Hdr: rd.c 1.20 92/12/21$
13 *
14 * @(#)rd.c 8.1 (Berkeley) 07/15/93
15 */
16
17 /*
18 * CS80/SS80 disk driver
19 */
20 #include <sys/param.h>
21 #include <sys/disklabel.h>
22 #include <stand.att/saio.h>
23 #include <hp300/stand/samachdep.h>
24
25 #include <hp300/dev/rdreg.h>
26
27 struct rd_iocmd rd_ioc;
28 struct rd_rscmd rd_rsc;
29 struct rd_stat rd_stat;
30 struct rd_ssmcmd rd_ssmc;
31
32 struct disklabel rdlabel;
33
34 struct rdminilabel {
35 u_short npart;
36 u_long offset[MAXPARTITIONS];
37 };
38
39 struct rd_softc {
40 char sc_retry;
41 char sc_alive;
42 short sc_type;
43 struct rdminilabel sc_pinfo;
44 } rd_softc[NHPIB][NRD];
45
46 #define RDRETRY 5
47
48 struct rdidentinfo {
49 short ri_hwid;
50 short ri_maxunum;
51 int ri_nblocks;
52 } rdidentinfo[] = {
53 { RD7946AID, 0, 108416 },
54 { RD9134DID, 1, 29088 },
55 { RD9134LID, 1, 1232 },
56 { RD7912PID, 0, 128128 },
57 { RD7914PID, 0, 258048 },
58 { RD7958AID, 0, 255276 },
59 { RD7957AID, 0, 159544 },
60 { RD7933HID, 0, 789958 },
61 { RD9134LID, 1, 77840 },
62 { RD7936HID, 0, 600978 },
63 { RD7937HID, 0, 1116102 },
64 { RD7914CTID, 0, 258048 },
65 { RD7946AID, 0, 108416 },
66 { RD9134LID, 1, 1232 },
67 { RD7957BID, 0, 159894 },
68 { RD7958BID, 0, 297108 },
69 { RD7959BID, 0, 594216 },
70 { RD2200AID, 0, 654948 },
71 { RD2203AID, 0, 1309896 }
72 };
73 int numrdidentinfo = sizeof(rdidentinfo) / sizeof(rdidentinfo[0]);
74
rdinit(ctlr,unit)75 rdinit(ctlr, unit)
76 int ctlr, unit;
77 {
78 register struct rd_softc *rs = &rd_softc[ctlr][unit];
79 u_char stat;
80
81 rs->sc_type = rdident(ctlr, unit);
82 if (rs->sc_type < 0)
83 return (0);
84 rs->sc_alive = 1;
85 return (1);
86 }
87
rdreset(ctlr,unit)88 rdreset(ctlr, unit)
89 register int ctlr, unit;
90 {
91 u_char stat;
92
93 rd_ssmc.c_unit = C_SUNIT(0);
94 rd_ssmc.c_cmd = C_SSM;
95 rd_ssmc.c_refm = REF_MASK;
96 rd_ssmc.c_fefm = FEF_MASK;
97 rd_ssmc.c_aefm = AEF_MASK;
98 rd_ssmc.c_iefm = IEF_MASK;
99 hpibsend(ctlr, unit, C_CMD, &rd_ssmc, sizeof(rd_ssmc));
100 hpibswait(ctlr, unit);
101 hpibrecv(ctlr, unit, C_QSTAT, &stat, 1);
102 }
103
rdident(ctlr,unit)104 rdident(ctlr, unit)
105 register int ctlr, unit;
106 {
107 struct rd_describe desc;
108 u_char stat, cmd[3];
109 char name[7];
110 register int id, i;
111
112 id = hpibid(ctlr, unit);
113 if ((id & 0x200) == 0)
114 return(-1);
115 for (i = 0; i < numrdidentinfo; i++)
116 if (id == rdidentinfo[i].ri_hwid)
117 break;
118 if (i == numrdidentinfo)
119 return(-1);
120 id = i;
121 rdreset(ctlr, unit);
122 cmd[0] = C_SUNIT(0);
123 cmd[1] = C_SVOL(0);
124 cmd[2] = C_DESC;
125 hpibsend(ctlr, unit, C_CMD, cmd, sizeof(cmd));
126 hpibrecv(ctlr, unit, C_EXEC, &desc, 37);
127 hpibrecv(ctlr, unit, C_QSTAT, &stat, sizeof(stat));
128 bzero(name, sizeof(name));
129 if (!stat) {
130 register int n = desc.d_name;
131 for (i = 5; i >= 0; i--) {
132 name[i] = (n & 0xf) + '0';
133 n >>= 4;
134 }
135 }
136 /*
137 * Take care of a couple of anomolies:
138 * 1. 7945A and 7946A both return same HW id
139 * 2. 9122S and 9134D both return same HW id
140 * 3. 9122D and 9134L both return same HW id
141 */
142 switch (rdidentinfo[id].ri_hwid) {
143 case RD7946AID:
144 if (bcmp(name, "079450", 6) == 0)
145 id = RD7945A;
146 else
147 id = RD7946A;
148 break;
149
150 case RD9134LID:
151 if (bcmp(name, "091340", 6) == 0)
152 id = RD9134L;
153 else
154 id = RD9122D;
155 break;
156
157 case RD9134DID:
158 if (bcmp(name, "091220", 6) == 0)
159 id = RD9122S;
160 else
161 id = RD9134D;
162 break;
163 }
164 return(id);
165 }
166
167 #ifdef COMPAT_NOLABEL
168 int rdcyloff[][8] = {
169 { 1, 143, 0, 143, 0, 0, 323, 503, }, /* 7945A */
170 { 1, 167, 0, 0, 0, 0, 0, 0, }, /* 9134D */
171 { 0, 0, 0, 0, 0, 0, 0, 0, }, /* 9122S */
172 { 0, 71, 0, 221, 292, 542, 221, 0, }, /* 7912P */
173 { 1, 72, 0, 72, 362, 802, 252, 362, }, /* 7914P */
174 { 1, 28, 0, 140, 167, 444, 140, 721, }, /* 7933H */
175 { 1, 200, 0, 200, 0, 0, 450, 600, }, /* 9134L */
176 { 1, 105, 0, 105, 380, 736, 265, 380, }, /* 7957A */
177 { 1, 65, 0, 65, 257, 657, 193, 257, }, /* 7958A */
178 { 1, 128, 0, 128, 518, 918, 388, 518, }, /* 7957B */
179 { 1, 44, 0, 44, 174, 496, 131, 174, }, /* 7958B */
180 { 1, 44, 0, 44, 218, 1022,174, 218, }, /* 7959B */
181 { 1, 37, 0, 37, 183, 857, 147, 183, }, /* 2200A */
182 { 1, 19, 0, 94, 112, 450, 94, 788, }, /* 2203A */
183 { 1, 20, 0, 98, 117, 256, 98, 397, }, /* 7936H */
184 { 1, 11, 0, 53, 63, 217, 53, 371, }, /* 7937H */
185 };
186
187 struct rdcompatinfo {
188 int nbpc;
189 int *cyloff;
190 } rdcompatinfo[] = {
191 NRD7945ABPT*NRD7945ATRK, rdcyloff[0],
192 NRD9134DBPT*NRD9134DTRK, rdcyloff[1],
193 NRD9122SBPT*NRD9122STRK, rdcyloff[2],
194 NRD7912PBPT*NRD7912PTRK, rdcyloff[3],
195 NRD7914PBPT*NRD7914PTRK, rdcyloff[4],
196 NRD7958ABPT*NRD7958ATRK, rdcyloff[8],
197 NRD7957ABPT*NRD7957ATRK, rdcyloff[7],
198 NRD7933HBPT*NRD7933HTRK, rdcyloff[5],
199 NRD9134LBPT*NRD9134LTRK, rdcyloff[6],
200 NRD7936HBPT*NRD7936HTRK, rdcyloff[14],
201 NRD7937HBPT*NRD7937HTRK, rdcyloff[15],
202 NRD7914PBPT*NRD7914PTRK, rdcyloff[4],
203 NRD7945ABPT*NRD7945ATRK, rdcyloff[0],
204 NRD9122SBPT*NRD9122STRK, rdcyloff[2],
205 NRD7957BBPT*NRD7957BTRK, rdcyloff[9],
206 NRD7958BBPT*NRD7958BTRK, rdcyloff[10],
207 NRD7959BBPT*NRD7959BTRK, rdcyloff[11],
208 NRD2200ABPT*NRD2200ATRK, rdcyloff[12],
209 NRD2203ABPT*NRD2203ATRK, rdcyloff[13],
210 };
211 int nrdcompatinfo = sizeof(rdcompatinfo) / sizeof(rdcompatinfo[0]);
212 #endif
213
rdgetinfo(io)214 rdgetinfo(io)
215 register struct iob *io;
216 {
217 struct rd_softc *rs = &rd_softc[io->i_adapt][io->i_ctlr];
218 register struct rdminilabel *pi = &rs->sc_pinfo;
219 register struct disklabel *lp = &rdlabel;
220 char *msg, *readdisklabel();
221 int rdstrategy(), i;
222
223 bzero((caddr_t)lp, sizeof *lp);
224 lp->d_secsize = DEV_BSIZE;
225 msg = readdisklabel(io, rdstrategy, lp);
226 if (msg) {
227 printf("rd(%d,%d,%d,%d): WARNING: %s, ",
228 io->i_adapt, io->i_ctlr, io->i_unit, io->i_part, msg);
229 #ifdef COMPAT_NOLABEL
230 {
231 register struct rdcompatinfo *ci;
232
233 printf("using old default partitioning\n");
234 ci = &rdcompatinfo[rs->sc_type];
235 pi->npart = 8;
236 for (i = 0; i < pi->npart; i++)
237 pi->offset[i] = ci->cyloff[i] * ci->nbpc;
238 }
239 #else
240 printf("defining `c' partition as entire disk\n");
241 pi->npart = 3;
242 pi->offset[0] = pi->offset[1] = -1;
243 pi->offset[2] = 0;
244 #endif
245 } else {
246 pi->npart = lp->d_npartitions;
247 for (i = 0; i < pi->npart; i++)
248 pi->offset[i] = lp->d_partitions[i].p_size == 0 ?
249 -1 : lp->d_partitions[i].p_offset;
250 }
251 return(1);
252 }
253
254 rdopen(io)
255 struct iob *io;
256 {
257 register struct rd_softc *rs;
258 struct rdinfo *ri;
259 int unit, ctlr, part;
260
261 devconvert(io);
262
263 ctlr = io->i_adapt;
264 if (ctlr >= NHPIB || hpibalive(ctlr) == 0)
265 return (EADAPT);
266 unit = io->i_ctlr;
267 if (unit >= NRD)
268 return (ECTLR);
269 rs = &rd_softc[ctlr][unit];
270 if (rs->sc_alive == 0) {
271 if (rdinit(ctlr, unit) == 0)
272 return (ENXIO);
273 if (rdgetinfo(io) == 0)
274 return (ERDLAB);
275 }
276 part = io->i_part;
277 if (part >= rs->sc_pinfo.npart || rs->sc_pinfo.offset[part] == -1)
278 return (EPART);
279 io->i_boff = rs->sc_pinfo.offset[part];
280 return (0);
281 }
282
rdstrategy(io,func)283 rdstrategy(io, func)
284 register struct iob *io;
285 int func;
286 {
287 register int ctlr = io->i_adapt;
288 register int unit = io->i_ctlr;
289 register struct rd_softc *rs = &rd_softc[ctlr][unit];
290 char stat;
291
292 if (io->i_cc == 0)
293 return(0);
294
295 rs->sc_retry = 0;
296 rd_ioc.c_unit = C_SUNIT(0);
297 rd_ioc.c_volume = C_SVOL(0);
298 rd_ioc.c_saddr = C_SADDR;
299 rd_ioc.c_hiaddr = 0;
300 rd_ioc.c_addr = RDBTOS(io->i_bn);
301 rd_ioc.c_nop2 = C_NOP;
302 rd_ioc.c_slen = C_SLEN;
303 rd_ioc.c_len = io->i_cc;
304 rd_ioc.c_cmd = func == F_READ ? C_READ : C_WRITE;
305 retry:
306 hpibsend(ctlr, unit, C_CMD, &rd_ioc.c_unit, sizeof(rd_ioc)-2);
307 hpibswait(ctlr, unit);
308 hpibgo(ctlr, unit, C_EXEC, io->i_ma, io->i_cc, func);
309 hpibswait(ctlr, unit);
310 hpibrecv(ctlr, unit, C_QSTAT, &stat, 1);
311 if (stat) {
312 if (rderror(ctlr, unit, io->i_part) == 0)
313 return(-1);
314 if (++rs->sc_retry > RDRETRY)
315 return(-1);
316 goto retry;
317 }
318 return(io->i_cc);
319 }
320
rderror(ctlr,unit,part)321 rderror(ctlr, unit, part)
322 register int ctlr, unit;
323 int part;
324 {
325 register struct rd_softc *rd = &rd_softc[ctlr][unit];
326 char stat;
327
328 rd_rsc.c_unit = C_SUNIT(0);
329 rd_rsc.c_sram = C_SRAM;
330 rd_rsc.c_ram = C_RAM;
331 rd_rsc.c_cmd = C_STATUS;
332 hpibsend(ctlr, unit, C_CMD, &rd_rsc, sizeof(rd_rsc));
333 hpibrecv(ctlr, unit, C_EXEC, &rd_stat, sizeof(rd_stat));
334 hpibrecv(ctlr, unit, C_QSTAT, &stat, 1);
335 if (stat) {
336 printf("rd(%d,%d,0,%d): request status fail %d\n",
337 ctlr, unit, part, stat);
338 return(0);
339 }
340 printf("rd(%d,%d,0,%d) err: vu 0x%x",
341 ctlr, unit, part, rd_stat.c_vu);
342 if ((rd_stat.c_aef & AEF_UD) || (rd_stat.c_ief & (IEF_MD|IEF_RD)))
343 printf(", block %d", rd_stat.c_blk);
344 printf(", R0x%x F0x%x A0x%x I0x%x\n",
345 rd_stat.c_ref, rd_stat.c_fef, rd_stat.c_aef, rd_stat.c_ief);
346 return(1);
347 }
348