Commit | Line | Data |
---|---|---|
740e4029 | 1 | /* tm.c 4.52 82/08/13 */ |
d75e5c3e | 2 | |
443c8066 | 3 | #include "te.h" |
23e0e9b8 | 4 | #include "ts.h" |
2ac8d080 | 5 | #if NTE > 0 |
d75e5c3e | 6 | /* |
afb907f2 | 7 | * TM11/TE10 tape driver |
7e00c42b | 8 | * |
d565635a BJ |
9 | * TODO: |
10 | * test driver with more than one slave | |
11 | * test driver with more than one controller | |
12 | * test reset code | |
d565635a BJ |
13 | * what happens if you offline tape during rewind? |
14 | * test using file system on tape | |
d75e5c3e | 15 | */ |
d75e5c3e | 16 | #include "../h/param.h" |
27a897a2 | 17 | #include "../h/systm.h" |
d75e5c3e BJ |
18 | #include "../h/buf.h" |
19 | #include "../h/dir.h" | |
20 | #include "../h/conf.h" | |
21 | #include "../h/user.h" | |
22 | #include "../h/file.h" | |
23 | #include "../h/map.h" | |
24 | #include "../h/pte.h" | |
e4271c68 | 25 | #include "../h/vm.h" |
89bd2f01 BJ |
26 | #include "../h/ubareg.h" |
27 | #include "../h/ubavar.h" | |
d75e5c3e | 28 | #include "../h/ioctl.h" |
942f05a9 | 29 | #include "../h/mtio.h" |
7455bf3e | 30 | #include "../h/cmap.h" |
3f3a34c3 | 31 | #include "../h/cpu.h" |
740e4029 | 32 | #include "../h/uio.h" |
d75e5c3e | 33 | |
3f3a34c3 | 34 | #include "../h/tmreg.h" |
d75e5c3e | 35 | |
d565635a BJ |
36 | /* |
37 | * There is a ctmbuf per tape controller. | |
38 | * It is used as the token to pass to the internal routines | |
39 | * to execute tape ioctls, and also acts as a lock on the slaves | |
40 | * on the controller, since there is only one per controller. | |
41 | * In particular, when the tape is rewinding on close we release | |
42 | * the user process but any further attempts to use the tape drive | |
43 | * before the rewind completes will hang waiting for ctmbuf. | |
44 | */ | |
45 | struct buf ctmbuf[NTM]; | |
46 | ||
47 | /* | |
48 | * Raw tape operations use rtmbuf. The driver | |
49 | * notices when rtmbuf is being used and allows the user | |
50 | * program to continue after errors and read records | |
51 | * not of the standard length (BSIZE). | |
52 | */ | |
53 | struct buf rtmbuf[NTM]; | |
d75e5c3e | 54 | |
d565635a BJ |
55 | /* |
56 | * Driver unibus interface routines and variables. | |
57 | */ | |
71236e46 | 58 | int tmprobe(), tmslave(), tmattach(), tmdgo(), tmintr(); |
89bd2f01 | 59 | struct uba_ctlr *tmminfo[NTM]; |
d565635a BJ |
60 | struct uba_device *tedinfo[NTE]; |
61 | struct buf teutab[NTE]; | |
62 | short tetotm[NTE]; | |
d763a2b7 | 63 | u_short tmstd[] = { 0772520, 0 }; |
3f3a34c3 | 64 | struct uba_driver tmdriver = |
d565635a | 65 | { tmprobe, tmslave, tmattach, tmdgo, tmstd, "te", tedinfo, "tm", tmminfo, 0 }; |
d75e5c3e BJ |
66 | |
67 | /* bits in minor device */ | |
d565635a BJ |
68 | #define TEUNIT(dev) (minor(dev)&03) |
69 | #define TMUNIT(dev) (tetotm[TEUNIT(dev)]) | |
d75e5c3e BJ |
70 | #define T_NOREWIND 04 |
71 | #define T_1600BPI 08 | |
72 | ||
73 | #define INF (daddr_t)1000000L | |
74 | ||
71236e46 BJ |
75 | /* |
76 | * Software state per tape transport. | |
d565635a BJ |
77 | * |
78 | * 1. A tape drive is a unique-open device; we refuse opens when it is already. | |
79 | * 2. We keep track of the current position on a block tape and seek | |
80 | * before operations by forward/back spacing if necessary. | |
81 | * 3. We remember if the last operation was a write on a tape, so if a tape | |
82 | * is open read write and the last thing done is a write we can | |
83 | * write a standard end of tape mark (two eofs). | |
84 | * 4. We remember the status registers after the last command, using | |
85 | * then internally and returning them to the SENSE ioctl. | |
86 | * 5. We remember the last density the tape was used at. If it is | |
87 | * not a BOT when we start using it and we are writing, we don't | |
88 | * let the density be changed. | |
71236e46 | 89 | */ |
d565635a | 90 | struct te_softc { |
71236e46 BJ |
91 | char sc_openf; /* lock against multiple opens */ |
92 | char sc_lastiow; /* last op was a write */ | |
93 | daddr_t sc_blkno; /* block number, for block device tape */ | |
d565635a | 94 | daddr_t sc_nxrec; /* position of end of tape, if known */ |
71236e46 BJ |
95 | u_short sc_erreg; /* copy of last erreg */ |
96 | u_short sc_dsreg; /* copy of last dsreg */ | |
97 | short sc_resid; /* copy of last bc */ | |
a0eab615 | 98 | #ifdef unneeded |
d1330646 | 99 | short sc_lastcmd; /* last command to handle direction changes */ |
80905075 | 100 | #endif |
d565635a | 101 | u_short sc_dens; /* prototype command with density info */ |
a752fee0 BJ |
102 | daddr_t sc_timo; /* time until timeout expires */ |
103 | short sc_tact; /* timeout is active */ | |
04b2deaa | 104 | } te_softc[NTE]; |
a0eab615 BJ |
105 | #ifdef unneeded |
106 | int tmgapsdcnt; /* DEBUG */ | |
107 | #endif | |
d75e5c3e | 108 | |
71236e46 | 109 | /* |
d565635a BJ |
110 | * States for um->um_tab.b_active, the per controller state flag. |
111 | * This is used to sequence control in the driver. | |
71236e46 | 112 | */ |
d75e5c3e BJ |
113 | #define SSEEK 1 /* seeking */ |
114 | #define SIO 2 /* doing seq i/o */ | |
115 | #define SCOM 3 /* sending control command */ | |
71236e46 | 116 | #define SREW 4 /* sending a drive rewind */ |
d75e5c3e | 117 | |
5aa9d5ea RE |
118 | /* |
119 | * Determine if there is a controller for | |
120 | * a tm at address reg. Our goal is to make the | |
121 | * device interrupt. | |
5aa9d5ea | 122 | */ |
71236e46 | 123 | tmprobe(reg) |
3f3a34c3 BJ |
124 | caddr_t reg; |
125 | { | |
d565635a | 126 | register int br, cvec; /* must be r11,r10; value-result */ |
5aa9d5ea | 127 | |
71236e46 | 128 | #ifdef lint |
a0eab615 | 129 | br = 0; cvec = br; br = cvec; |
89b8a44c | 130 | tmintr(0); |
71236e46 | 131 | #endif |
a870f835 | 132 | ((struct tmdevice *)reg)->tmcs = TM_IE; |
3f3a34c3 | 133 | /* |
afb907f2 | 134 | * If this is a tm11, it ought to have interrupted |
3f3a34c3 | 135 | * by now, if it isn't (ie: it is a ts04) then we just |
d763a2b7 BJ |
136 | * hope that it didn't interrupt, so autoconf will ignore it. |
137 | * Just in case, we will reference one | |
3f3a34c3 | 138 | * of the more distant registers, and hope for a machine |
d763a2b7 | 139 | * check, or similar disaster if this is a ts. |
7e00c42b BJ |
140 | * |
141 | * Note: on an 11/780, badaddr will just generate | |
142 | * a uba error for a ts; but our caller will notice that | |
143 | * so we won't check for it. | |
3f3a34c3 | 144 | */ |
a870f835 | 145 | if (badaddr((caddr_t)&((struct tmdevice *)reg)->tmrd, 2)) |
d763a2b7 | 146 | return (0); |
9c0adba0 | 147 | return (sizeof (struct tmdevice)); |
3f3a34c3 BJ |
148 | } |
149 | ||
71236e46 BJ |
150 | /* |
151 | * Due to a design flaw, we cannot ascertain if the tape | |
152 | * exists or not unless it is on line - ie: unless a tape is | |
153 | * mounted. This is too servere a restriction to bear, | |
154 | * so all units are assumed to exist. | |
155 | */ | |
156 | /*ARGSUSED*/ | |
e4271c68 | 157 | tmslave(ui, reg) |
89bd2f01 | 158 | struct uba_device *ui; |
3f3a34c3 BJ |
159 | caddr_t reg; |
160 | { | |
d763a2b7 | 161 | |
d763a2b7 | 162 | return (1); |
3f3a34c3 BJ |
163 | } |
164 | ||
71236e46 | 165 | /* |
d565635a | 166 | * Record attachment of the unit to the controller. |
71236e46 BJ |
167 | */ |
168 | /*ARGSUSED*/ | |
169 | tmattach(ui) | |
89bd2f01 | 170 | struct uba_device *ui; |
71236e46 | 171 | { |
d565635a BJ |
172 | /* |
173 | * Tetotm is used in TMUNIT to index the ctmbuf and rtmbuf | |
174 | * arrays given a te unit number. | |
175 | */ | |
176 | tetotm[ui->ui_unit] = ui->ui_mi->um_ctlr; | |
71236e46 BJ |
177 | } |
178 | ||
a752fee0 | 179 | int tmtimer(); |
71236e46 BJ |
180 | /* |
181 | * Open the device. Tapes are unique open | |
182 | * devices, so we refuse if it is already open. | |
183 | * We also check that a tape is available, and | |
d565635a BJ |
184 | * don't block waiting here; if you want to wait |
185 | * for a tape you should timeout in user code. | |
71236e46 | 186 | */ |
d75e5c3e BJ |
187 | tmopen(dev, flag) |
188 | dev_t dev; | |
189 | int flag; | |
190 | { | |
d565635a | 191 | register int teunit; |
89bd2f01 | 192 | register struct uba_device *ui; |
d565635a | 193 | register struct te_softc *sc; |
971424d9 | 194 | int olddens, dens; |
2311123d | 195 | int s; |
d75e5c3e | 196 | |
d565635a BJ |
197 | teunit = TEUNIT(dev); |
198 | if (teunit>=NTE || (sc = &te_softc[teunit])->sc_openf || | |
199 | (ui = tedinfo[teunit]) == 0 || ui->ui_alive == 0) { | |
71236e46 | 200 | u.u_error = ENXIO; |
d75e5c3e BJ |
201 | return; |
202 | } | |
971424d9 BJ |
203 | olddens = sc->sc_dens; |
204 | dens = TM_IE | TM_GO | (ui->ui_slave << 8); | |
205 | if ((minor(dev) & T_1600BPI) == 0) | |
206 | dens |= TM_D800; | |
207 | sc->sc_dens = dens; | |
27a897a2 | 208 | get: |
71236e46 | 209 | tmcommand(dev, TM_SENSE, 1); |
27a897a2 BJ |
210 | if (sc->sc_erreg&TMER_SDWN) { |
211 | sleep((caddr_t)&lbolt, PZERO+1); | |
212 | goto get; | |
213 | } | |
971424d9 | 214 | sc->sc_dens = olddens; |
a1706887 BJ |
215 | if ((sc->sc_erreg&(TMER_SELR|TMER_TUR)) != (TMER_SELR|TMER_TUR)) { |
216 | uprintf("te%d: not online\n", teunit); | |
217 | u.u_error = EIO; | |
218 | return; | |
219 | } | |
220 | if ((flag&FWRITE) && (sc->sc_erreg&TMER_WRL)) { | |
221 | uprintf("te%d: no write ring\n", teunit); | |
222 | u.u_error = EIO; | |
223 | return; | |
224 | } | |
225 | if ((sc->sc_erreg&TMER_BOT) == 0 && (flag&FWRITE) && | |
226 | dens != sc->sc_dens) { | |
227 | uprintf("te%d: can't change density in mid-tape\n", teunit); | |
71236e46 | 228 | u.u_error = EIO; |
d75e5c3e BJ |
229 | return; |
230 | } | |
71236e46 | 231 | sc->sc_openf = 1; |
7e00c42b BJ |
232 | sc->sc_blkno = (daddr_t)0; |
233 | sc->sc_nxrec = INF; | |
71236e46 | 234 | sc->sc_lastiow = 0; |
d565635a | 235 | sc->sc_dens = dens; |
2311123d | 236 | s = spl6(); |
a752fee0 BJ |
237 | if (sc->sc_tact == 0) { |
238 | sc->sc_timo = INF; | |
239 | sc->sc_tact = 1; | |
c27ba986 | 240 | timeout(tmtimer, (caddr_t)dev, 5*hz); |
a752fee0 | 241 | } |
2311123d | 242 | splx(s); |
d75e5c3e BJ |
243 | } |
244 | ||
71236e46 BJ |
245 | /* |
246 | * Close tape device. | |
247 | * | |
248 | * If tape was open for writing or last operation was | |
249 | * a write, then write two EOF's and backspace over the last one. | |
250 | * Unless this is a non-rewinding special file, rewind the tape. | |
251 | * Make the tape available to others. | |
252 | */ | |
d75e5c3e BJ |
253 | tmclose(dev, flag) |
254 | register dev_t dev; | |
255 | register flag; | |
256 | { | |
d565635a | 257 | register struct te_softc *sc = &te_softc[TEUNIT(dev)]; |
d75e5c3e | 258 | |
71236e46 BJ |
259 | if (flag == FWRITE || (flag&FWRITE) && sc->sc_lastiow) { |
260 | tmcommand(dev, TM_WEOF, 1); | |
261 | tmcommand(dev, TM_WEOF, 1); | |
262 | tmcommand(dev, TM_SREV, 1); | |
d75e5c3e BJ |
263 | } |
264 | if ((minor(dev)&T_NOREWIND) == 0) | |
d565635a BJ |
265 | /* |
266 | * 0 count means don't hang waiting for rewind complete | |
267 | * rather ctmbuf stays busy until the operation completes | |
268 | * preventing further opens from completing by | |
269 | * preventing a TM_SENSE from completing. | |
270 | */ | |
271 | tmcommand(dev, TM_REW, 0); | |
7e00c42b | 272 | sc->sc_openf = 0; |
d75e5c3e BJ |
273 | } |
274 | ||
71236e46 BJ |
275 | /* |
276 | * Execute a command on the tape drive | |
277 | * a specified number of times. | |
278 | */ | |
e4271c68 | 279 | tmcommand(dev, com, count) |
d75e5c3e BJ |
280 | dev_t dev; |
281 | int com, count; | |
282 | { | |
283 | register struct buf *bp; | |
2311123d | 284 | register int s; |
d75e5c3e | 285 | |
71236e46 | 286 | bp = &ctmbuf[TMUNIT(dev)]; |
2311123d | 287 | s = spl5(); |
d75e5c3e | 288 | while (bp->b_flags&B_BUSY) { |
d565635a BJ |
289 | /* |
290 | * This special check is because B_BUSY never | |
291 | * gets cleared in the non-waiting rewind case. | |
292 | */ | |
27a897a2 | 293 | if (bp->b_repcnt == 0 && (bp->b_flags&B_DONE)) |
d565635a | 294 | break; |
d75e5c3e BJ |
295 | bp->b_flags |= B_WANTED; |
296 | sleep((caddr_t)bp, PRIBIO); | |
297 | } | |
298 | bp->b_flags = B_BUSY|B_READ; | |
2311123d | 299 | splx(s); |
d75e5c3e BJ |
300 | bp->b_dev = dev; |
301 | bp->b_repcnt = -count; | |
302 | bp->b_command = com; | |
303 | bp->b_blkno = 0; | |
304 | tmstrategy(bp); | |
d565635a BJ |
305 | /* |
306 | * In case of rewind from close, don't wait. | |
307 | * This is the only case where count can be 0. | |
308 | */ | |
309 | if (count == 0) | |
310 | return; | |
d75e5c3e BJ |
311 | iowait(bp); |
312 | if (bp->b_flags&B_WANTED) | |
313 | wakeup((caddr_t)bp); | |
314 | bp->b_flags &= B_ERROR; | |
315 | } | |
316 | ||
71236e46 | 317 | /* |
d565635a | 318 | * Queue a tape operation. |
71236e46 | 319 | */ |
d75e5c3e BJ |
320 | tmstrategy(bp) |
321 | register struct buf *bp; | |
322 | { | |
d565635a | 323 | int teunit = TEUNIT(bp->b_dev); |
89bd2f01 | 324 | register struct uba_ctlr *um; |
71236e46 | 325 | register struct buf *dp; |
2311123d | 326 | int s; |
d75e5c3e | 327 | |
71236e46 BJ |
328 | /* |
329 | * Put transfer at end of unit queue | |
330 | */ | |
d565635a | 331 | dp = &teutab[teunit]; |
d75e5c3e | 332 | bp->av_forw = NULL; |
2311123d | 333 | s = spl5(); |
06e2c4fb | 334 | um = tedinfo[teunit]->ui_mi; |
71236e46 BJ |
335 | if (dp->b_actf == NULL) { |
336 | dp->b_actf = bp; | |
337 | /* | |
338 | * Transport not already active... | |
339 | * put at end of controller queue. | |
340 | */ | |
341 | dp->b_forw = NULL; | |
71236e46 BJ |
342 | if (um->um_tab.b_actf == NULL) |
343 | um->um_tab.b_actf = dp; | |
344 | else | |
345 | um->um_tab.b_actl->b_forw = dp; | |
346 | um->um_tab.b_actl = dp; | |
347 | } else | |
348 | dp->b_actl->av_forw = bp; | |
349 | dp->b_actl = bp; | |
350 | /* | |
351 | * If the controller is not busy, get | |
352 | * it going. | |
353 | */ | |
354 | if (um->um_tab.b_active == 0) | |
355 | tmstart(um); | |
2311123d | 356 | splx(s); |
d75e5c3e BJ |
357 | } |
358 | ||
71236e46 BJ |
359 | /* |
360 | * Start activity on a tm controller. | |
361 | */ | |
362 | tmstart(um) | |
89bd2f01 | 363 | register struct uba_ctlr *um; |
d75e5c3e | 364 | { |
71236e46 | 365 | register struct buf *bp, *dp; |
a870f835 | 366 | register struct tmdevice *addr = (struct tmdevice *)um->um_addr; |
d565635a | 367 | register struct te_softc *sc; |
89bd2f01 | 368 | register struct uba_device *ui; |
d565635a | 369 | int teunit, cmd; |
7e00c42b | 370 | daddr_t blkno; |
d75e5c3e | 371 | |
71236e46 BJ |
372 | /* |
373 | * Look for an idle transport on the controller. | |
374 | */ | |
d75e5c3e | 375 | loop: |
71236e46 | 376 | if ((dp = um->um_tab.b_actf) == NULL) |
d75e5c3e | 377 | return; |
71236e46 BJ |
378 | if ((bp = dp->b_actf) == NULL) { |
379 | um->um_tab.b_actf = dp->b_forw; | |
380 | goto loop; | |
381 | } | |
d565635a BJ |
382 | teunit = TEUNIT(bp->b_dev); |
383 | ui = tedinfo[teunit]; | |
71236e46 BJ |
384 | /* |
385 | * Record pre-transfer status (e.g. for TM_SENSE) | |
386 | */ | |
d565635a | 387 | sc = &te_softc[teunit]; |
a870f835 | 388 | addr = (struct tmdevice *)um->um_addr; |
71236e46 | 389 | addr->tmcs = (ui->ui_slave << 8); |
7e00c42b BJ |
390 | sc->sc_dsreg = addr->tmcs; |
391 | sc->sc_erreg = addr->tmer; | |
392 | sc->sc_resid = addr->tmbc; | |
71236e46 BJ |
393 | /* |
394 | * Default is that last command was NOT a write command; | |
395 | * if we do a write command we will notice this in tmintr(). | |
396 | */ | |
bc9da2ca | 397 | sc->sc_lastiow = 0; |
71236e46 BJ |
398 | if (sc->sc_openf < 0 || (addr->tmcs&TM_CUR) == 0) { |
399 | /* | |
d565635a BJ |
400 | * Have had a hard error on a non-raw tape |
401 | * or the tape unit is now unavailable | |
402 | * (e.g. taken off line). | |
71236e46 BJ |
403 | */ |
404 | bp->b_flags |= B_ERROR; | |
d75e5c3e BJ |
405 | goto next; |
406 | } | |
d565635a BJ |
407 | if (bp == &ctmbuf[TMUNIT(bp->b_dev)]) { |
408 | /* | |
409 | * Execute control operation with the specified count. | |
410 | */ | |
71236e46 BJ |
411 | if (bp->b_command == TM_SENSE) |
412 | goto next; | |
a752fee0 BJ |
413 | /* |
414 | * Set next state; give 5 minutes to complete | |
415 | * rewind, or 10 seconds per iteration (minimum 60 | |
c27ba986 | 416 | * seconds and max 5 minutes) to complete other ops. |
a752fee0 BJ |
417 | */ |
418 | if (bp->b_command == TM_REW) { | |
419 | um->um_tab.b_active = SREW; | |
420 | sc->sc_timo = 5 * 60; | |
421 | } else { | |
422 | um->um_tab.b_active = SCOM; | |
0218811c BJ |
423 | sc->sc_timo = |
424 | imin(imax(10*(int)-bp->b_repcnt,60),5*60); | |
a752fee0 | 425 | } |
71236e46 BJ |
426 | if (bp->b_command == TM_SFORW || bp->b_command == TM_SREV) |
427 | addr->tmbc = bp->b_repcnt; | |
d1330646 | 428 | goto dobpcmd; |
71236e46 | 429 | } |
d565635a BJ |
430 | /* |
431 | * The following checks handle boundary cases for operation | |
432 | * on non-raw tapes. On raw tapes the initialization of | |
433 | * sc->sc_nxrec by tmphys causes them to be skipped normally | |
434 | * (except in the case of retries). | |
435 | */ | |
fb739082 | 436 | if (bdbtofsb(bp->b_blkno) > sc->sc_nxrec) { |
d565635a BJ |
437 | /* |
438 | * Can't read past known end-of-file. | |
439 | */ | |
440 | bp->b_flags |= B_ERROR; | |
441 | bp->b_error = ENXIO; | |
442 | goto next; | |
443 | } | |
fb739082 | 444 | if (bdbtofsb(bp->b_blkno) == sc->sc_nxrec && |
d565635a BJ |
445 | bp->b_flags&B_READ) { |
446 | /* | |
447 | * Reading at end of file returns 0 bytes. | |
448 | */ | |
449 | bp->b_resid = bp->b_bcount; | |
450 | clrbuf(bp); | |
451 | goto next; | |
452 | } | |
453 | if ((bp->b_flags&B_READ) == 0) | |
454 | /* | |
455 | * Writing sets EOF | |
456 | */ | |
fb739082 | 457 | sc->sc_nxrec = bdbtofsb(bp->b_blkno) + 1; |
71236e46 BJ |
458 | /* |
459 | * If the data transfer command is in the correct place, | |
460 | * set up all the registers except the csr, and give | |
461 | * control over to the UNIBUS adapter routines, to | |
462 | * wait for resources to start the i/o. | |
463 | */ | |
fb739082 | 464 | if ((blkno = sc->sc_blkno) == bdbtofsb(bp->b_blkno)) { |
3f3a34c3 | 465 | addr->tmbc = -bp->b_bcount; |
d75e5c3e | 466 | if ((bp->b_flags&B_READ) == 0) { |
7e00c42b | 467 | if (um->um_tab.b_errcnt) |
d565635a | 468 | cmd = TM_WIRG; |
d75e5c3e | 469 | else |
d565635a | 470 | cmd = TM_WCOM; |
d75e5c3e | 471 | } else |
d565635a | 472 | cmd = TM_RCOM; |
7e00c42b | 473 | um->um_tab.b_active = SIO; |
d565635a | 474 | um->um_cmd = sc->sc_dens|cmd; |
80905075 | 475 | #ifdef notdef |
d1330646 | 476 | if (tmreverseop(sc->sc_lastcmd)) |
d565635a | 477 | while (addr->tmer & TMER_SDWN) |
d1330646 | 478 | tmgapsdcnt++; |
d1330646 | 479 | sc->sc_lastcmd = TM_RCOM; /* will serve */ |
80905075 | 480 | #endif |
a752fee0 | 481 | sc->sc_timo = 60; /* premature, but should serve */ |
a0eab615 | 482 | (void) ubago(ui); |
d75e5c3e BJ |
483 | return; |
484 | } | |
71236e46 | 485 | /* |
d565635a BJ |
486 | * Tape positioned incorrectly; |
487 | * set to seek forwards or backwards to the correct spot. | |
488 | * This happens for raw tapes only on error retries. | |
71236e46 | 489 | */ |
7e00c42b | 490 | um->um_tab.b_active = SSEEK; |
fb739082 | 491 | if (blkno < bdbtofsb(bp->b_blkno)) { |
d1330646 | 492 | bp->b_command = TM_SFORW; |
fb739082 | 493 | addr->tmbc = blkno - bdbtofsb(bp->b_blkno); |
d75e5c3e | 494 | } else { |
d1330646 | 495 | bp->b_command = TM_SREV; |
fb739082 | 496 | addr->tmbc = bdbtofsb(bp->b_blkno) - blkno; |
d75e5c3e | 497 | } |
c27ba986 | 498 | sc->sc_timo = imin(imax(10 * -addr->tmbc, 60), 5 * 60); |
d1330646 | 499 | dobpcmd: |
80905075 | 500 | #ifdef notdef |
d565635a BJ |
501 | /* |
502 | * It is strictly necessary to wait for the tape | |
503 | * to stop before changing directions, but the TC11 | |
504 | * handles this for us. | |
505 | */ | |
d1330646 BJ |
506 | if (tmreverseop(sc->sc_lastcmd) != tmreverseop(bp->b_command)) |
507 | while (addr->tmer & TM_SDWN) | |
508 | tmgapsdcnt++; | |
d1330646 | 509 | sc->sc_lastcmd = bp->b_command; |
80905075 | 510 | #endif |
d565635a BJ |
511 | /* |
512 | * Do the command in bp. | |
513 | */ | |
514 | addr->tmcs = (sc->sc_dens | bp->b_command); | |
d75e5c3e BJ |
515 | return; |
516 | ||
517 | next: | |
71236e46 BJ |
518 | /* |
519 | * Done with this operation due to error or | |
520 | * the fact that it doesn't do anything. | |
521 | * Release UBA resources (if any), dequeue | |
522 | * the transfer and continue processing this slave. | |
523 | */ | |
524 | if (um->um_ubinfo) | |
0801d37f | 525 | ubadone(um); |
71236e46 BJ |
526 | um->um_tab.b_errcnt = 0; |
527 | dp->b_actf = bp->av_forw; | |
d75e5c3e BJ |
528 | iodone(bp); |
529 | goto loop; | |
530 | } | |
531 | ||
71236e46 BJ |
532 | /* |
533 | * The UNIBUS resources we needed have been | |
534 | * allocated to us; start the device. | |
535 | */ | |
e4271c68 | 536 | tmdgo(um) |
89bd2f01 | 537 | register struct uba_ctlr *um; |
3f3a34c3 | 538 | { |
a870f835 | 539 | register struct tmdevice *addr = (struct tmdevice *)um->um_addr; |
7e00c42b | 540 | |
e4271c68 BJ |
541 | addr->tmba = um->um_ubinfo; |
542 | addr->tmcs = um->um_cmd | ((um->um_ubinfo >> 12) & 0x30); | |
3f3a34c3 BJ |
543 | } |
544 | ||
71236e46 BJ |
545 | /* |
546 | * Tm interrupt routine. | |
547 | */ | |
7e00c42b | 548 | /*ARGSUSED*/ |
afb907f2 BJ |
549 | tmintr(tm11) |
550 | int tm11; | |
d75e5c3e | 551 | { |
71236e46 | 552 | struct buf *dp; |
d75e5c3e | 553 | register struct buf *bp; |
89bd2f01 | 554 | register struct uba_ctlr *um = tmminfo[tm11]; |
a870f835 | 555 | register struct tmdevice *addr; |
d565635a BJ |
556 | register struct te_softc *sc; |
557 | int teunit; | |
d75e5c3e BJ |
558 | register state; |
559 | ||
d565635a BJ |
560 | if ((dp = um->um_tab.b_actf) == NULL) |
561 | return; | |
562 | bp = dp->b_actf; | |
563 | teunit = TEUNIT(bp->b_dev); | |
a870f835 | 564 | addr = (struct tmdevice *)tedinfo[teunit]->ui_addr; |
6a476a42 | 565 | sc = &te_softc[teunit]; |
71236e46 BJ |
566 | /* |
567 | * If last command was a rewind, and tape is still | |
568 | * rewinding, wait for the rewind complete interrupt. | |
569 | */ | |
570 | if (um->um_tab.b_active == SREW) { | |
571 | um->um_tab.b_active = SCOM; | |
6a476a42 BJ |
572 | if (addr->tmer&TMER_RWS) { |
573 | sc->sc_timo = 5*60; /* 5 minutes */ | |
71236e46 | 574 | return; |
6a476a42 | 575 | } |
d75e5c3e | 576 | } |
71236e46 BJ |
577 | /* |
578 | * An operation completed... record status | |
579 | */ | |
a752fee0 | 580 | sc->sc_timo = INF; |
7e00c42b BJ |
581 | sc->sc_dsreg = addr->tmcs; |
582 | sc->sc_erreg = addr->tmer; | |
583 | sc->sc_resid = addr->tmbc; | |
d75e5c3e | 584 | if ((bp->b_flags & B_READ) == 0) |
71236e46 | 585 | sc->sc_lastiow = 1; |
7e00c42b BJ |
586 | state = um->um_tab.b_active; |
587 | um->um_tab.b_active = 0; | |
71236e46 BJ |
588 | /* |
589 | * Check for errors. | |
590 | */ | |
591 | if (addr->tmcs&TM_ERR) { | |
d565635a | 592 | while (addr->tmer & TMER_SDWN) |
d75e5c3e | 593 | ; /* await settle down */ |
71236e46 | 594 | /* |
d565635a | 595 | * If we hit the end of the tape file, update our position. |
71236e46 | 596 | */ |
d565635a | 597 | if (addr->tmer&TMER_EOF) { |
71236e46 BJ |
598 | tmseteof(bp); /* set blkno and nxrec */ |
599 | state = SCOM; /* force completion */ | |
600 | /* | |
601 | * Stuff bc so it will be unstuffed correctly | |
602 | * later to get resid. | |
603 | */ | |
3f3a34c3 | 604 | addr->tmbc = -bp->b_bcount; |
71236e46 | 605 | goto opdone; |
d75e5c3e | 606 | } |
71236e46 | 607 | /* |
d565635a BJ |
608 | * If we were reading raw tape and the only error was that the |
609 | * record was too long, then we don't consider this an error. | |
71236e46 | 610 | */ |
d565635a BJ |
611 | if (bp == &rtmbuf[TMUNIT(bp->b_dev)] && (bp->b_flags&B_READ) && |
612 | (addr->tmer&(TMER_HARD|TMER_SOFT)) == TMER_RLE) | |
71236e46 BJ |
613 | goto ignoreerr; |
614 | /* | |
615 | * If error is not hard, and this was an i/o operation | |
616 | * retry up to 8 times. | |
617 | */ | |
d565635a | 618 | if ((addr->tmer&TMER_HARD)==0 && state==SIO) { |
7e00c42b | 619 | if (++um->um_tab.b_errcnt < 7) { |
7e00c42b | 620 | sc->sc_blkno++; |
0801d37f | 621 | ubadone(um); |
71236e46 | 622 | goto opcont; |
d75e5c3e | 623 | } |
71236e46 BJ |
624 | } else |
625 | /* | |
626 | * Hard or non-i/o errors on non-raw tape | |
627 | * cause it to close. | |
628 | */ | |
d565635a | 629 | if (sc->sc_openf>0 && bp != &rtmbuf[TMUNIT(bp->b_dev)]) |
71236e46 BJ |
630 | sc->sc_openf = -1; |
631 | /* | |
632 | * Couldn't recover error | |
633 | */ | |
80905075 | 634 | printf("te%d: hard error bn%d er=%b\n", minor(bp->b_dev)&03, |
d565635a | 635 | bp->b_blkno, sc->sc_erreg, TMER_BITS); |
d75e5c3e | 636 | bp->b_flags |= B_ERROR; |
71236e46 | 637 | goto opdone; |
d75e5c3e | 638 | } |
71236e46 BJ |
639 | /* |
640 | * Advance tape control FSM. | |
641 | */ | |
642 | ignoreerr: | |
d75e5c3e BJ |
643 | switch (state) { |
644 | ||
645 | case SIO: | |
71236e46 BJ |
646 | /* |
647 | * Read/write increments tape block number | |
648 | */ | |
7e00c42b | 649 | sc->sc_blkno++; |
71236e46 | 650 | goto opdone; |
d75e5c3e BJ |
651 | |
652 | case SCOM: | |
71236e46 | 653 | /* |
d565635a | 654 | * For forward/backward space record update current position. |
71236e46 | 655 | */ |
d565635a | 656 | if (bp == &ctmbuf[TMUNIT(bp->b_dev)]) |
71236e46 BJ |
657 | switch (bp->b_command) { |
658 | ||
659 | case TM_SFORW: | |
660 | sc->sc_blkno -= bp->b_repcnt; | |
d565635a | 661 | break; |
71236e46 BJ |
662 | |
663 | case TM_SREV: | |
664 | sc->sc_blkno += bp->b_repcnt; | |
d565635a | 665 | break; |
d75e5c3e | 666 | } |
d565635a | 667 | goto opdone; |
d75e5c3e BJ |
668 | |
669 | case SSEEK: | |
fb739082 | 670 | sc->sc_blkno = bdbtofsb(bp->b_blkno); |
71236e46 | 671 | goto opcont; |
d75e5c3e BJ |
672 | |
673 | default: | |
71236e46 | 674 | panic("tmintr"); |
d75e5c3e | 675 | } |
71236e46 BJ |
676 | opdone: |
677 | /* | |
678 | * Reset error count and remove | |
679 | * from device queue. | |
680 | */ | |
681 | um->um_tab.b_errcnt = 0; | |
682 | dp->b_actf = bp->av_forw; | |
683 | bp->b_resid = -addr->tmbc; | |
0801d37f | 684 | ubadone(um); |
71236e46 BJ |
685 | iodone(bp); |
686 | /* | |
687 | * Circulate slave to end of controller | |
688 | * queue to give other slaves a chance. | |
689 | */ | |
690 | um->um_tab.b_actf = dp->b_forw; | |
691 | if (dp->b_actf) { | |
692 | dp->b_forw = NULL; | |
693 | if (um->um_tab.b_actf == NULL) | |
694 | um->um_tab.b_actf = dp; | |
695 | else | |
696 | um->um_tab.b_actl->b_forw = dp; | |
697 | um->um_tab.b_actl = dp; | |
698 | } | |
699 | if (um->um_tab.b_actf == 0) | |
700 | return; | |
701 | opcont: | |
702 | tmstart(um); | |
d75e5c3e BJ |
703 | } |
704 | ||
a752fee0 BJ |
705 | tmtimer(dev) |
706 | int dev; | |
707 | { | |
708 | register struct te_softc *sc = &te_softc[TEUNIT(dev)]; | |
afa0df56 | 709 | register short x; |
a752fee0 BJ |
710 | |
711 | if (sc->sc_timo != INF && (sc->sc_timo -= 5) < 0) { | |
aa4e15a3 | 712 | printf("te%d: lost interrupt\n", TEUNIT(dev)); |
a752fee0 | 713 | sc->sc_timo = INF; |
afa0df56 | 714 | x = spl5(); |
a752fee0 | 715 | tmintr(TMUNIT(dev)); |
afa0df56 | 716 | (void) splx(x); |
a752fee0 | 717 | } |
c27ba986 | 718 | timeout(tmtimer, (caddr_t)dev, 5*hz); |
a752fee0 BJ |
719 | } |
720 | ||
d75e5c3e BJ |
721 | tmseteof(bp) |
722 | register struct buf *bp; | |
723 | { | |
d565635a | 724 | register int teunit = TEUNIT(bp->b_dev); |
a870f835 BJ |
725 | register struct tmdevice *addr = |
726 | (struct tmdevice *)tedinfo[teunit]->ui_addr; | |
d565635a | 727 | register struct te_softc *sc = &te_softc[teunit]; |
d75e5c3e | 728 | |
d565635a | 729 | if (bp == &ctmbuf[TMUNIT(bp->b_dev)]) { |
fb739082 | 730 | if (sc->sc_blkno > bdbtofsb(bp->b_blkno)) { |
d75e5c3e | 731 | /* reversing */ |
fb739082 | 732 | sc->sc_nxrec = bdbtofsb(bp->b_blkno) - addr->tmbc; |
7e00c42b | 733 | sc->sc_blkno = sc->sc_nxrec; |
d75e5c3e BJ |
734 | } else { |
735 | /* spacing forward */ | |
fb739082 | 736 | sc->sc_blkno = bdbtofsb(bp->b_blkno) + addr->tmbc; |
7e00c42b | 737 | sc->sc_nxrec = sc->sc_blkno - 1; |
d75e5c3e BJ |
738 | } |
739 | return; | |
740 | } | |
741 | /* eof on read */ | |
fb739082 | 742 | sc->sc_nxrec = bdbtofsb(bp->b_blkno); |
d75e5c3e BJ |
743 | } |
744 | ||
740e4029 | 745 | tmread(dev, uio) |
71236e46 | 746 | dev_t dev; |
740e4029 | 747 | struct uio *uio; |
d75e5c3e BJ |
748 | { |
749 | ||
740e4029 | 750 | u.u_error = tmphys(dev, uio); |
89bd2f01 BJ |
751 | if (u.u_error) |
752 | return; | |
740e4029 | 753 | physio(tmstrategy, &rtmbuf[TMUNIT(dev)], dev, B_READ, minphys, uio); |
d75e5c3e BJ |
754 | } |
755 | ||
756 | tmwrite(dev) | |
71236e46 | 757 | dev_t dev; |
d75e5c3e BJ |
758 | { |
759 | ||
740e4029 | 760 | tmphys(dev, 0); |
89bd2f01 BJ |
761 | if (u.u_error) |
762 | return; | |
740e4029 | 763 | physio(tmstrategy, &rtmbuf[TMUNIT(dev)], dev, B_WRITE, minphys, 0); |
d75e5c3e BJ |
764 | } |
765 | ||
d565635a BJ |
766 | /* |
767 | * Check that a raw device exists. | |
768 | * If it does, set up sc_blkno and sc_nxrec | |
769 | * so that the tape will appear positioned correctly. | |
770 | */ | |
740e4029 | 771 | tmphys(dev, uio) |
71236e46 | 772 | dev_t dev; |
740e4029 | 773 | struct uio *uio; |
d75e5c3e | 774 | { |
d565635a | 775 | register int teunit = TEUNIT(dev); |
d75e5c3e | 776 | register daddr_t a; |
d565635a BJ |
777 | register struct te_softc *sc; |
778 | register struct uba_device *ui; | |
d75e5c3e | 779 | |
d565635a | 780 | if (teunit >= NTE || (ui=tedinfo[teunit]) == 0 || ui->ui_alive == 0) { |
89bd2f01 | 781 | u.u_error = ENXIO; |
740e4029 | 782 | return (ENXIO); |
89bd2f01 | 783 | } |
d565635a | 784 | sc = &te_softc[teunit]; |
740e4029 BJ |
785 | if (uio) |
786 | a = bdbtofsb(uio->uio_offset >> 9); | |
787 | else | |
788 | a = bdbtofsb(u.u_offset >> 9); | |
7e00c42b BJ |
789 | sc->sc_blkno = a; |
790 | sc->sc_nxrec = a + 1; | |
740e4029 | 791 | return (0); |
d75e5c3e BJ |
792 | } |
793 | ||
71236e46 BJ |
794 | tmreset(uban) |
795 | int uban; | |
796 | { | |
89bd2f01 | 797 | register struct uba_ctlr *um; |
d565635a | 798 | register tm11, teunit; |
89bd2f01 | 799 | register struct uba_device *ui; |
71236e46 BJ |
800 | register struct buf *dp; |
801 | ||
afb907f2 BJ |
802 | for (tm11 = 0; tm11 < NTM; tm11++) { |
803 | if ((um = tmminfo[tm11]) == 0 || um->um_alive == 0 || | |
71236e46 BJ |
804 | um->um_ubanum != uban) |
805 | continue; | |
80905075 | 806 | printf(" tm%d", tm11); |
71236e46 BJ |
807 | um->um_tab.b_active = 0; |
808 | um->um_tab.b_actf = um->um_tab.b_actl = 0; | |
809 | if (um->um_ubinfo) { | |
810 | printf("<%d>", (um->um_ubinfo>>28)&0xf); | |
0801d37f | 811 | ubadone(um); |
71236e46 | 812 | } |
a870f835 | 813 | ((struct tmdevice *)(um->um_addr))->tmcs = TM_DCLR; |
d565635a BJ |
814 | for (teunit = 0; teunit < NTE; teunit++) { |
815 | if ((ui = tedinfo[teunit]) == 0 || ui->ui_mi != um || | |
816 | ui->ui_alive == 0) | |
71236e46 | 817 | continue; |
d565635a | 818 | dp = &teutab[teunit]; |
71236e46 BJ |
819 | dp->b_active = 0; |
820 | dp->b_forw = 0; | |
821 | if (um->um_tab.b_actf == NULL) | |
822 | um->um_tab.b_actf = dp; | |
823 | else | |
824 | um->um_tab.b_actl->b_forw = dp; | |
825 | um->um_tab.b_actl = dp; | |
a752fee0 BJ |
826 | if (te_softc[teunit].sc_openf > 0) |
827 | te_softc[teunit].sc_openf = -1; | |
71236e46 BJ |
828 | } |
829 | tmstart(um); | |
830 | } | |
831 | } | |
832 | ||
d75e5c3e | 833 | /*ARGSUSED*/ |
942f05a9 SL |
834 | tmioctl(dev, cmd, data, flag) |
835 | caddr_t data; | |
d75e5c3e BJ |
836 | dev_t dev; |
837 | { | |
d565635a BJ |
838 | int teunit = TEUNIT(dev); |
839 | register struct te_softc *sc = &te_softc[teunit]; | |
840 | register struct buf *bp = &ctmbuf[TMUNIT(dev)]; | |
d75e5c3e BJ |
841 | register callcount; |
842 | int fcount; | |
942f05a9 SL |
843 | struct mtop *mtop; |
844 | struct mtget *mtget; | |
d75e5c3e | 845 | /* we depend of the values and order of the MT codes here */ |
71236e46 BJ |
846 | static tmops[] = |
847 | {TM_WEOF,TM_SFORW,TM_SREV,TM_SFORW,TM_SREV,TM_REW,TM_OFFL,TM_SENSE}; | |
d75e5c3e | 848 | |
71236e46 | 849 | switch (cmd) { |
942f05a9 SL |
850 | |
851 | case MTIOCTOP: /* tape operation */ | |
852 | mtop = (struct mtop *)data; | |
853 | switch(mtop->mt_op) { | |
854 | ||
71236e46 | 855 | case MTWEOF: |
942f05a9 | 856 | callcount = mtop->mt_count; |
71236e46 BJ |
857 | fcount = 1; |
858 | break; | |
942f05a9 | 859 | |
71236e46 | 860 | case MTFSF: case MTBSF: |
942f05a9 | 861 | callcount = mtop->mt_count; |
d75e5c3e BJ |
862 | fcount = INF; |
863 | break; | |
942f05a9 | 864 | |
d75e5c3e BJ |
865 | case MTFSR: case MTBSR: |
866 | callcount = 1; | |
942f05a9 | 867 | fcount = mtop->mt_count; |
d75e5c3e | 868 | break; |
942f05a9 | 869 | |
77115c00 | 870 | case MTREW: case MTOFFL: case MTNOP: |
d75e5c3e BJ |
871 | callcount = 1; |
872 | fcount = 1; | |
873 | break; | |
942f05a9 | 874 | |
d75e5c3e BJ |
875 | default: |
876 | u.u_error = ENXIO; | |
877 | return; | |
878 | } | |
71236e46 | 879 | if (callcount <= 0 || fcount <= 0) { |
d75e5c3e | 880 | u.u_error = ENXIO; |
71236e46 BJ |
881 | return; |
882 | } | |
883 | while (--callcount >= 0) { | |
942f05a9 SL |
884 | tmcommand(dev, tmops[mtop->mt_op], fcount); |
885 | if ((mtop->mt_op == MTFSR || mtop->mt_op == MTBSR) && | |
71236e46 | 886 | bp->b_resid) { |
d75e5c3e BJ |
887 | u.u_error = EIO; |
888 | break; | |
889 | } | |
d565635a | 890 | if ((bp->b_flags&B_ERROR) || sc->sc_erreg&TMER_BOT) |
d75e5c3e BJ |
891 | break; |
892 | } | |
71236e46 | 893 | geterror(bp); |
d75e5c3e | 894 | return; |
942f05a9 | 895 | |
d75e5c3e | 896 | case MTIOCGET: |
942f05a9 SL |
897 | mtget = (struct mtget *)data; |
898 | mtget->mt_dsreg = sc->sc_dsreg; | |
899 | mtget->mt_erreg = sc->sc_erreg; | |
900 | mtget->mt_resid = sc->sc_resid; | |
901 | mtget->mt_type = MT_ISTM; | |
d75e5c3e | 902 | return; |
942f05a9 | 903 | |
d75e5c3e BJ |
904 | default: |
905 | u.u_error = ENXIO; | |
906 | } | |
907 | } | |
908 | ||
909 | #define DBSIZE 20 | |
910 | ||
7455bf3e | 911 | tmdump() |
d75e5c3e | 912 | { |
89bd2f01 | 913 | register struct uba_device *ui; |
3f3a34c3 | 914 | register struct uba_regs *up; |
a870f835 | 915 | register struct tmdevice *addr; |
5aa9d5ea RE |
916 | int blk, num; |
917 | int start; | |
d75e5c3e | 918 | |
5aa9d5ea RE |
919 | start = 0; |
920 | num = maxfree; | |
921 | #define phys(a,b) ((b)((int)(a)&0x7fffffff)) | |
d565635a | 922 | if (tedinfo[0] == 0) |
2536c16c | 923 | return (ENXIO); |
d565635a | 924 | ui = phys(tedinfo[0], struct uba_device *); |
3f3a34c3 | 925 | up = phys(ui->ui_hd, struct uba_hd *)->uh_physuba; |
57229699 | 926 | ubainit(up); |
77115c00 | 927 | DELAY(1000000); |
a870f835 | 928 | addr = (struct tmdevice *)ui->ui_physaddr; |
3f3a34c3 | 929 | tmwait(addr); |
71236e46 | 930 | addr->tmcs = TM_DCLR | TM_GO; |
d75e5c3e BJ |
931 | while (num > 0) { |
932 | blk = num > DBSIZE ? DBSIZE : num; | |
3f3a34c3 | 933 | tmdwrite(start, blk, addr, up); |
d75e5c3e BJ |
934 | start += blk; |
935 | num -= blk; | |
936 | } | |
5aa9d5ea RE |
937 | tmeof(addr); |
938 | tmeof(addr); | |
7e00c42b | 939 | tmwait(addr); |
2536c16c BJ |
940 | if (addr->tmcs&TM_ERR) |
941 | return (EIO); | |
71236e46 | 942 | addr->tmcs = TM_REW | TM_GO; |
5aa9d5ea | 943 | tmwait(addr); |
7455bf3e | 944 | return (0); |
d75e5c3e BJ |
945 | } |
946 | ||
71236e46 BJ |
947 | tmdwrite(dbuf, num, addr, up) |
948 | register dbuf, num; | |
a870f835 | 949 | register struct tmdevice *addr; |
3f3a34c3 | 950 | struct uba_regs *up; |
d75e5c3e | 951 | { |
3f3a34c3 BJ |
952 | register struct pte *io; |
953 | register int npf; | |
0a51498e | 954 | |
3f3a34c3 | 955 | tmwait(addr); |
3f3a34c3 | 956 | io = up->uba_map; |
d75e5c3e | 957 | npf = num+1; |
0a51498e | 958 | while (--npf != 0) |
89bd2f01 | 959 | *(int *)io++ = (dbuf++ | (1<<UBAMR_DPSHIFT) | UBAMR_MRV); |
3f3a34c3 BJ |
960 | *(int *)io = 0; |
961 | addr->tmbc = -(num*NBPG); | |
962 | addr->tmba = 0; | |
71236e46 | 963 | addr->tmcs = TM_WCOM | TM_GO; |
d75e5c3e BJ |
964 | } |
965 | ||
3f3a34c3 | 966 | tmwait(addr) |
a870f835 | 967 | register struct tmdevice *addr; |
d75e5c3e | 968 | { |
0a51498e | 969 | register s; |
d75e5c3e BJ |
970 | |
971 | do | |
3f3a34c3 | 972 | s = addr->tmcs; |
71236e46 | 973 | while ((s & TM_CUR) == 0); |
d75e5c3e BJ |
974 | } |
975 | ||
3f3a34c3 | 976 | tmeof(addr) |
a870f835 | 977 | struct tmdevice *addr; |
d75e5c3e BJ |
978 | { |
979 | ||
3f3a34c3 | 980 | tmwait(addr); |
71236e46 | 981 | addr->tmcs = TM_WEOF | TM_GO; |
d75e5c3e BJ |
982 | } |
983 | #endif |