Commit | Line | Data |
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0399a117 | 1 | /* |
e9280e61 KS |
2 | * Copyright (c) 1986 MICOM-Interlan, Inc., Boxborough Mass |
3 | * All rights reserved. The Berkeley software License Agreement | |
4 | * specifies the terms and conditions for redistribution. | |
0399a117 | 5 | * |
1c15e888 | 6 | * @(#)np.c 7.7 (Berkeley) 6/21/90 |
ef9a9a2c MK |
7 | * |
8 | * From: | |
9 | * np.c version 1.5 | |
10 | * | |
11 | * This version retrieved: 8/18/86 @ 18:58:54 | |
12 | * This delta created: 8/18/86 @ 18:19:24 | |
13 | * | |
14 | * static char *SCCSID = "@(#)np.c 1.5"; | |
15 | * | |
0399a117 KS |
16 | */ |
17 | ||
18 | /****************************************** | |
19 | * * | |
20 | * NPDRIVER * | |
21 | * * | |
22 | ******************************************/ | |
23 | ||
24 | /* | |
25 | * The NP Driver is used to route requests, independent of protocol type, | |
26 | * to the NP series Intelligent Board. The facilities it provides are | |
27 | * used for board maintainance by the superuser and by protocol pseudo-drivers, | |
28 | * such as WN, for sending requests to a board. The board maintainance and | |
29 | * control functions are accessed via npioctl() by the NP support utilities. | |
30 | */ | |
31 | ||
ef9a9a2c MK |
32 | /* |
33 | * Modification History: | |
34 | * 4/9/86 DDW Removed pseudo-driver initialization flag resets from NpReset | |
35 | * 5/28/86 CJM Changed iodone() to wakeup() in NpProcQueue(). | |
36 | * | |
37 | */ | |
0399a117 KS |
38 | |
39 | /* | |
40 | * Include Files | |
41 | */ | |
42 | ||
43 | #include "np.h" | |
44 | #if NNP > 0 | |
1c15e888 C |
45 | #include "param.h" |
46 | #include "buf.h" | |
47 | #include "ubavar.h" | |
48 | #include "signal.h" | |
49 | #include "systm.h" | |
50 | #include "user.h" | |
51 | #include "proc.h" | |
52 | #include "uio.h" | |
53 | #include "errno.h" | |
ef9a9a2c | 54 | |
0399a117 KS |
55 | #include "../vaxuba/npreg.h" |
56 | ||
ef9a9a2c MK |
57 | #define b_uio b_forw |
58 | #define b_rp av_back | |
0399a117 KS |
59 | /* |
60 | * Global variables for pseudo-drivers. | |
61 | */ | |
62 | ||
ef9a9a2c MK |
63 | int WnInitFlag = 0; |
64 | int IsInitFlag = 0; | |
65 | int (*IxAttach)(); | |
66 | int (*IxReset)(); | |
0399a117 KS |
67 | |
68 | /* | |
69 | * Debugging level. | |
70 | */ | |
71 | ||
72 | int NpDebug = 0; | |
73 | ||
74 | /* Driver Wide State used by the ICP */ | |
75 | ||
76 | int NpState = NPCLEAR; | |
77 | ||
78 | ||
79 | /* | |
80 | * Master structure, one per board, contains request queue header, | |
81 | * shared memory address, and memory mapping information. | |
82 | */ | |
83 | ||
84 | struct npmaster npmasters[NNP]; | |
85 | ||
86 | /* Structure of the shared memory area */ | |
87 | ||
88 | static struct npspace npspaces[NNP]; | |
89 | ||
90 | /* Panic Message data structures */ | |
91 | ||
92 | static int panicmap; /* Mapping information */ | |
93 | static char NpPbuf[PANLEN] = 0; /* Panic message buffer */ | |
94 | static caddr_t pstring; /* Panic string address on board, absolute */ | |
95 | static unsign16 panaddr[2]; /* Panic string address on board (seg/offset) */ | |
96 | ||
97 | /* Driver Wide Connection Table */ | |
98 | ||
99 | static struct npconn npcnxtab[NNP][NNPCNN]; | |
100 | ||
101 | /* Head of the request queue, one per board */ | |
102 | ||
103 | static struct npreq reqhdr[NNP]; | |
104 | ||
ef9a9a2c MK |
105 | /* Require for diagnostic packages */ |
106 | ||
107 | typedef struct npreq *reqptr; | |
108 | reqptr np_mapreq[NNP]; | |
109 | ||
0399a117 KS |
110 | /* The request structures, one pool per board */ |
111 | ||
112 | static struct npreq npreqs[NNP][NUMCQE]; | |
113 | ||
114 | ||
115 | /* | |
116 | * Data structures needed for BSD 4.2 Device Drivers | |
117 | */ | |
118 | ||
119 | int npprobe(), npattach(), npintr(); | |
120 | struct uba_device *npdinfo[NNP]; | |
121 | ||
122 | /* UNIBUS address of Network Processors */ | |
123 | ||
124 | u_short npstd[] = { 0166000, 0166020, 0 }; | |
125 | ||
126 | /* Interrupt vectors used by the Network Processors */ | |
127 | ||
128 | static unsign16 npvectors[NNP]; | |
129 | ||
130 | struct uba_driver npdriver = | |
131 | { npprobe, 0, npattach, 0, npstd, "np", npdinfo }; | |
132 | struct buf np_tab[NNP]; | |
ef9a9a2c | 133 | static unsigned long np_icount[NNP]; |
0399a117 KS |
134 | |
135 | ||
136 | /* | |
137 | * External function and data structure declarations. | |
138 | */ | |
139 | ||
140 | struct npreq * NpGetReq(); | |
141 | struct npmaster *NpBoardChange(); | |
142 | int NpTimer(); | |
143 | struct CQE * NpRemCQE(); | |
0399a117 KS |
144 | |
145 | extern struct user u; | |
146 | \f | |
147 | /* | |
148 | * Np_init() is responsible for hardware initializiation and the software | |
149 | * initialization of the connection table and driver software data structures. | |
150 | */ | |
151 | ||
152 | npinit(unit) | |
153 | int unit; | |
154 | { | |
155 | register int j; | |
156 | ||
157 | ||
158 | /* Software Initialization */ | |
159 | ||
160 | npmasters[unit].flags = NPCLEAR; | |
161 | ||
162 | NpSWinit(unit); | |
163 | ||
164 | /* Hardware Initialization */ | |
165 | ||
166 | NpHWinit(unit); | |
167 | ||
168 | /* Connection Table Initialization */ | |
169 | ||
170 | for(j=0;j<NNPCNN;j++) { | |
171 | npcnxtab[unit][j].protocol = NPCLCONN; | |
172 | npcnxtab[unit][j].unit = &npmasters[unit]; | |
173 | } | |
174 | } | |
175 | \f | |
176 | /* | |
177 | * Np_open establishes a connection to the NP Driver using the minor | |
178 | * device number as an identifier. A default protocol, NPMAINT, is assigned | |
179 | * with the specified unit. Protocol and unit may be changed using the | |
180 | * NpProtChange and NpBoardChange functions. | |
181 | * Since the maintainance protocol does not need a working I-Board, entries | |
182 | * are always made in the Connection Table, npcnxtab, if the board exists. | |
183 | */ | |
184 | ||
185 | /*ARGSUSED*/ | |
186 | npopen(dev,flag) | |
187 | dev_t dev; | |
188 | int flag; | |
189 | { | |
190 | int unit; | |
191 | unsign16 conn; | |
192 | struct npmaster *mp; | |
193 | int error; | |
194 | ||
195 | if(NpDebug & DEBENTRY) | |
196 | printf("npopen\n"); | |
197 | ||
198 | /* Clear error */ | |
199 | ||
200 | error = 0; | |
201 | ||
202 | /* Make sure it's the superuser */ | |
203 | ||
204 | if(u.u_uid) | |
205 | return(EPERM); | |
206 | ||
207 | /* Get the connection identifier */ | |
208 | ||
209 | if(((conn = NPCONN(dev)) >= NNPCNN) || | |
210 | ((unit = NPUNIT(dev)) >= NNP)) | |
211 | return(ENODEV); | |
212 | ||
213 | ||
214 | if(NpDebug & DEBOPEN) | |
215 | printf("conn = %x unit = %d\n",conn,unit); | |
216 | ||
217 | /* Get the board for the specified unit */ | |
218 | ||
219 | mp = NpBoardChange(NPMAINT,unit); | |
220 | ||
221 | if(mp != (struct npmaster *) 0) { | |
222 | npcnxtab[unit][conn].unit = mp; | |
223 | npcnxtab[unit][conn].protocol = NPMAINT; | |
224 | } | |
225 | else error = ENXIO; | |
226 | ||
227 | if(NpDebug & DEBENTRY) | |
228 | printf("npopen...\n"); | |
229 | ||
230 | return(error); | |
231 | } | |
232 | \f | |
233 | /* | |
234 | * Np_close is responsible updating the connection table for | |
235 | * that connection by marking it closed. | |
236 | */ | |
237 | ||
238 | npclose(dev) | |
239 | dev_t dev; | |
240 | { | |
241 | ||
242 | if(NpDebug & DEBENTRY) | |
243 | printf("npclose\n"); | |
244 | ||
245 | /* Get the connection identifier */ | |
246 | ||
247 | npcnxtab[NPUNIT(dev)][NPCONN(dev)].protocol = NPCLCONN; | |
248 | ||
249 | if(NpDebug & DEBENTRY) | |
250 | printf("npclose...\n"); | |
251 | ||
252 | return(0); | |
253 | ||
254 | } | |
255 | \f | |
256 | /* | |
257 | * Npioctl is the main conduit of commands between the I-Board and the | |
258 | * NP support utilities. Relevant information for the request is found in the | |
259 | * cmd and addr parameters. Cmd specifies the function to perform, addr is | |
260 | * command specific. Npioctl returns 0 if successful, or an error number | |
261 | * (which winds up in errno). | |
262 | */ | |
263 | ||
264 | /*ARGSUSED*/ | |
265 | npioctl(dev,cmd,addr,flag) | |
266 | dev_t dev; | |
267 | int cmd; | |
268 | caddr_t *addr; | |
269 | int flag; | |
270 | { | |
271 | unsign16 protocol; | |
272 | unsign16 conn; | |
273 | unsign16 unit; | |
274 | int error; | |
275 | ||
276 | register struct npmaster *mp; | |
277 | register struct npreq *rp; | |
278 | unsigned usrarg; | |
279 | ||
280 | if(NpDebug & DEBENTRY) | |
281 | printf("npioctl\n"); | |
282 | ||
283 | /* Clear error */ | |
284 | ||
285 | error = 0; | |
286 | ||
287 | /* Strip off IOC_VOID bit */ | |
288 | ||
289 | cmd &= CMDMASK; | |
290 | ||
291 | /* Get connection identifier */ | |
292 | ||
293 | conn = NPCONN(dev); | |
294 | unit = NPUNIT(dev); | |
295 | ||
296 | /* Master pointer for this unit */ | |
297 | ||
298 | mp = npcnxtab[unit][conn].unit; | |
299 | ||
300 | protocol = npcnxtab[unit][conn].protocol; | |
301 | ||
302 | /* Get a request structure from the pool and initialize it */ | |
303 | ||
304 | while((rp = NpGetReq(mp->reqtab)) == NULL) { | |
305 | mp->reqtab->flags |= WANTREQ; | |
306 | sleep((caddr_t)(mp->reqtab),PZERO -1); | |
307 | } | |
308 | ||
309 | if(NpDebug & DEBREQ) | |
310 | printf("NP Reqp is %x\n",rp); | |
311 | ||
312 | /* Initializations of request structure */ | |
313 | ||
314 | rp->intr = (int (*)())0; /* Do not call interrupt routine */ | |
315 | rp->bufoffset = 0; /* Offset into data buffer */ | |
0399a117 KS |
316 | rp->procp = u.u_procp; /* Process structure for this user */ |
317 | ||
318 | /* Copy in user's argument to ioctl() call */ | |
319 | ||
320 | if(error = copyin(*addr,&usrarg,sizeof(usrarg))) | |
321 | return(error); | |
322 | ||
323 | ||
324 | if(NpDebug & DEBIOCTL) | |
325 | printf("arg = %x\n",usrarg); | |
326 | ||
327 | /* Execute the specified command */ | |
328 | ||
329 | switch(cmd) { | |
330 | ||
331 | case NPSETPROT: | |
332 | if((error = NpProtChange(usrarg,mp->unit)) == 0) | |
333 | npcnxtab[unit][conn].protocol = usrarg; | |
334 | break; | |
335 | case NPSETBOARD: | |
336 | if(mp = NpBoardChange(protocol,usrarg)) | |
337 | npcnxtab[unit][conn].unit = mp; | |
338 | else { | |
339 | mp = npcnxtab[unit][conn].unit; | |
340 | error = ENXIO; | |
341 | } | |
342 | break; | |
343 | case NPRESET: | |
344 | error = NpReset(mp,rp); | |
345 | break; | |
346 | case NPSETNPDEB: | |
347 | NpDebug = usrarg; | |
348 | break; | |
349 | case NPINIT: | |
350 | error = NpSWinit(mp->unit); | |
351 | break; | |
352 | case NPSTART: | |
353 | ||
354 | #ifdef OLDROM | |
355 | /* | |
356 | * Kludge to work around I-Board boot from Host. Read two bytes | |
357 | * from the board into the Device Configuration Word | |
358 | * in Shared Memory. | |
359 | */ | |
360 | ||
361 | NPIO(mp,(paddr_t)0x500,(paddr_t)(&mp->shmemp->statblock.sb_dcw),2,B_READ); | |
362 | ||
363 | mp->shmemp->statblock.sb_drw = 0; | |
364 | #endif | |
365 | ||
366 | /* Set the Address at which to begin On-Board execution */ | |
367 | ||
368 | error = NpSetXeqAddr(mp,(caddr_t)usrarg); | |
369 | break; | |
370 | case NPSTATS: | |
371 | error = NpStats(); | |
372 | break; | |
373 | case NPGPANIC: | |
374 | error = copyout((caddr_t)NpPbuf,*addr,PANLEN); | |
375 | ||
376 | /* Clear panic request flag and leave */ | |
377 | ||
378 | mp->flags &= ~PANICREQ; | |
379 | break; | |
380 | case NPPOLL: | |
381 | error = NpPoll(mp,*addr); | |
382 | break; | |
383 | case NPKILL: | |
384 | error = NpKill(mp,rp); | |
385 | break; | |
386 | case NPSETADDR: | |
387 | error = NpSetMemAddr(mp,*addr); | |
388 | break; | |
389 | case NPRCSR0: | |
390 | usrarg = RCSR0(mp->iobase); | |
391 | error = copyout((caddr_t)&usrarg,*addr,sizeof(usrarg)); | |
392 | break; | |
393 | case NPRCSR1: | |
394 | usrarg = RCSR1(mp->iobase); | |
395 | error = copyout((caddr_t)&usrarg,*addr,sizeof(usrarg)); | |
396 | break; | |
397 | case NPRCSR2: | |
398 | usrarg = RCSR2(mp->iobase); | |
399 | error = copyout((caddr_t)&usrarg,*addr,sizeof(usrarg)); | |
400 | break; | |
401 | case NPRCSR3: | |
402 | usrarg = RCSR3(mp->iobase); | |
403 | error = copyout((caddr_t)&usrarg,*addr,sizeof(usrarg)); | |
404 | break; | |
405 | case NPWCSR0: | |
406 | WCSR0(mp->iobase,usrarg); | |
407 | break; | |
408 | case NPWCSR1: | |
409 | WCSR1(mp->iobase,usrarg); | |
410 | break; | |
411 | case NPWCSR2: | |
412 | WCSR2(mp->iobase,usrarg); | |
413 | break; | |
414 | case NPWCSR3: | |
415 | WCSR3(mp->iobase,usrarg); | |
416 | break; | |
417 | case NPNETBOOT: | |
418 | error = NpSetIntLevel(mp,mp->vector); | |
419 | if(error) break; | |
420 | error = NpSetXeqAddr(mp,(caddr_t)INETBOOT); | |
421 | break; | |
ef9a9a2c MK |
422 | case NPSETLAST: |
423 | if (usrarg) | |
424 | mp->flags &= ~LSTCMD; | |
425 | else | |
426 | mp->flags |= LSTCMD; | |
427 | break; | |
428 | case NPCLRICNT: | |
429 | np_icount[unit] = NPCLEAR; | |
430 | break; | |
431 | case NPGETICNT: | |
432 | usrarg = np_icount[unit]; | |
433 | error = copyout((caddr_t)&usrarg,*addr,sizeof(usrarg)); | |
434 | break; | |
435 | case NPGETIVEC: | |
436 | usrarg = mp->vector; | |
437 | error = copyout((caddr_t)&usrarg,*addr,sizeof(usrarg)); | |
438 | break; | |
439 | case NPMAPMEM: | |
440 | error = NpMem(mp, rp, *addr); | |
441 | break; | |
0399a117 KS |
442 | default: |
443 | printf("Bad Maintenance command: %d!\n",cmd); | |
444 | error = EIO; | |
445 | break; | |
0399a117 | 446 | } |
ef9a9a2c | 447 | if((cmd != NPRESET) && (cmd != NPINIT) && (cmd != NPMAPMEM)) |
0399a117 KS |
448 | NpFreeReq(mp->reqtab,rp); |
449 | ||
450 | if(NpDebug & DEBENTRY) | |
451 | printf("npioctl...\n"); | |
452 | ||
453 | return(error); | |
454 | } | |
455 | ||
456 | /* | |
457 | * np_start - start io activity | |
458 | */ | |
459 | npstart(mp) | |
460 | register struct npmaster *mp; | |
461 | { | |
462 | ||
ef9a9a2c | 463 | register struct uio *uio; |
0399a117 KS |
464 | register struct buf *bp; |
465 | register struct npreq *rp; | |
466 | ||
467 | int error; /* Return from NPIO call */ | |
468 | ||
469 | if(NpDebug & DEBENTRY) | |
470 | printf("npstart\n"); | |
471 | ||
472 | if((bp = np_tab[mp->unit].b_actf) == (struct buf *)0) { | |
473 | np_tab[mp->unit].b_active = 0; | |
474 | return; | |
475 | } | |
ef9a9a2c MK |
476 | if((rp = (struct npreq *)(bp->b_rp)) == (struct npreq *)0) { |
477 | bp->b_flags = B_ERROR; | |
478 | iodone(bp); | |
479 | return; | |
480 | } | |
481 | if ((uio = (struct uio *)bp->b_uio) == (struct uio *)0) { | |
0399a117 KS |
482 | bp->b_flags = B_ERROR; |
483 | iodone(bp); | |
484 | return; | |
485 | } | |
486 | np_tab[mp->unit].b_active = 1; | |
487 | ||
488 | if(NpDebug & DEBIO) | |
ef9a9a2c MK |
489 | printf("NP IO src %x dst = %x cnt = %x\n", bp->b_un.b_addr, |
490 | uio->uio_offset, bp->b_bcount); | |
0399a117 KS |
491 | |
492 | /* Send the request to the board via the CSR0 command interface */ | |
493 | ||
494 | if(bp->b_flags & B_READ) | |
ef9a9a2c MK |
495 | error = NPIO(mp, (paddr_t)uio->uio_offset, (paddr_t)rp->bufaddr, |
496 | bp->b_bcount, (bp->b_flags & B_READ)); | |
0399a117 | 497 | else |
ef9a9a2c MK |
498 | error = NPIO(mp, (paddr_t)rp->bufaddr, (paddr_t)uio->uio_offset, |
499 | bp->b_bcount, (bp->b_flags & B_READ)); | |
0399a117 KS |
500 | |
501 | ||
502 | /* Check return from I/O */ | |
503 | ||
504 | if(error) { | |
505 | bp->b_flags |= B_ERROR; | |
506 | np_tab[mp->unit].b_actf = bp->av_forw; | |
0399a117 KS |
507 | if(NpDebug & DEBIO) |
508 | printf("NPIO return error: b_flags is %x \n",bp->b_flags); | |
509 | iodone(bp); | |
510 | } | |
511 | ||
512 | if(NpDebug & DEBENTRY) | |
513 | printf("npstart...\n"); | |
514 | ||
515 | } | |
516 | /* | |
ef9a9a2c | 517 | * npstrategy - the strategy routine |
0399a117 KS |
518 | */ |
519 | ||
520 | npstrategy(bp) | |
521 | register struct buf *bp; | |
522 | { | |
523 | ||
524 | register struct buf *ip; /* quick pointer */ | |
525 | register struct npmaster *mp; /* master structure for this device */ | |
526 | register struct npreq *rp; /* reqest struct pointer */ | |
527 | int s; /* priority to return to */ | |
528 | ||
529 | if(NpDebug & DEBENTRY) | |
530 | printf("npstrategy\n"); | |
531 | if(NpDebug & DEBIO) | |
532 | printf("flag = %x count = %x paddr = %x %x blkno = %x %x\n", | |
ef9a9a2c MK |
533 | bp->b_flags, bp->b_bcount, bp->b_un.b_addr, bp->b_un.b_addr, |
534 | bp->b_blkno,bp->b_blkno); | |
0399a117 KS |
535 | |
536 | /* get master structure */ | |
537 | ||
538 | mp = npcnxtab[NPUNIT(bp->b_dev)][NPCONN(bp->b_dev)].unit; | |
539 | ||
540 | /* make sure the boards ok */ | |
541 | ||
542 | if (mp->flags & BADBOARD) { | |
543 | bp->b_flags |= B_ERROR; | |
544 | ||
545 | if(NpDebug & DEBMEM) | |
546 | printf("Bad Board %x bp %x\n",mp->flags,bp->b_flags); | |
547 | ||
548 | np_tab[mp->unit].b_actf = bp->av_forw; | |
549 | iodone(bp); | |
550 | return; | |
551 | } | |
552 | ||
553 | /* Initializations of request structure */ | |
554 | ||
555 | while((rp = NpGetReq(mp->reqtab)) == NULL) { | |
556 | mp->reqtab->flags |= WANTREQ; | |
557 | sleep((caddr_t)(mp->reqtab),PZERO -1); | |
558 | } | |
559 | ||
560 | rp->bufoffset = 0; /* This is the start of the buffer */ | |
561 | ip = &np_tab[mp->unit]; | |
ef9a9a2c | 562 | bp->b_rp = (struct buf *)rp; |
0399a117 KS |
563 | |
564 | rp->flags |= KERNREQ; /* Mark it as kernel so not to map */ | |
565 | ||
566 | rp->mapbase = ubasetup(mp->devp->ui_ubanum,bp,0); | |
567 | rp->bufaddr = (caddr_t)((int)(rp->mapbase) & UBADDRMASK); | |
568 | ||
569 | s = spl5(); | |
570 | if(ip->b_actf ==(struct buf *)0) | |
571 | ip->b_actf = bp; | |
572 | else { | |
573 | if(ip->b_actf->av_forw) | |
574 | printf("Panic NP100 bad buffer chain\n"); | |
575 | ip->b_actf->av_forw = bp; | |
576 | } | |
577 | ip->b_actl = bp; | |
578 | ||
579 | NpAddReq(mp->reqtab,rp); /* Queue onto active list */ | |
580 | ||
581 | if(ip->b_active == 0) { | |
582 | ||
583 | if(NpDebug & DEBIO) | |
584 | printf("calling npstart %x\n",mp); | |
585 | ||
586 | npstart(mp); | |
587 | } | |
588 | splx(s); | |
589 | ||
590 | if(NpDebug & DEBIO) | |
591 | printf("back from npstart\n"); | |
592 | ||
593 | /* Await completion of I/O */ | |
594 | ||
595 | iowait(bp); | |
596 | ||
597 | if(NpDebug & DEBIO) | |
598 | printf("after iowait in npstrategy\n"); | |
599 | ||
600 | /* Remove request from queue */ | |
601 | ||
602 | NpRemReq(rp); | |
603 | ||
604 | /* Release mapping registers */ | |
605 | ||
606 | ubarelse(mp->devp->ui_ubanum,&rp->mapbase); | |
607 | ||
608 | /* Free up request structure */ | |
609 | ||
610 | NpFreeReq(mp->reqtab,rp); | |
611 | ||
612 | if(NpDebug & DEBENTRY) | |
613 | printf("Leaving npstrategy flags is %x\n",bp->b_flags); | |
614 | } | |
615 | ||
616 | unsigned | |
617 | nptrim(bp) | |
618 | register struct buf *bp; | |
619 | { | |
620 | ||
621 | if(bp->b_bcount > NPMAXXFR) | |
622 | bp->b_bcount = NPMAXXFR; | |
623 | } | |
624 | ||
625 | /* | |
626 | * Npread dumps data from the board to the user's buffer | |
627 | */ | |
628 | npread(dev,uio) | |
629 | dev_t dev; | |
630 | struct uio *uio; | |
631 | { | |
ef9a9a2c MK |
632 | struct buf *bp; |
633 | bp = &npcnxtab[NPUNIT(dev)][NPCONN(dev)].np_rbuf; | |
0399a117 KS |
634 | |
635 | if(NpDebug & DEBENTRY) | |
636 | printf("in npread\n"); | |
637 | ||
ef9a9a2c MK |
638 | bp->b_uio = (struct buf *)uio; |
639 | return(physio(npstrategy,bp,dev,B_READ ,nptrim,uio)); | |
0399a117 KS |
640 | } |
641 | ||
642 | /* | |
643 | * Npwrite loads the np100 board from the user's buffer | |
644 | */ | |
645 | ||
646 | npwrite(dev,uio) | |
647 | dev_t dev; | |
648 | struct uio *uio; | |
649 | { | |
650 | struct buf *bp; | |
651 | bp = &npcnxtab[NPUNIT(dev)][NPCONN(dev)].np_wbuf; | |
652 | ||
653 | if(NpDebug & DEBENTRY) | |
654 | printf("in npwrite \n"); | |
655 | ||
ef9a9a2c | 656 | bp->b_uio = (struct buf *)uio; |
0399a117 KS |
657 | return(physio(npstrategy,bp,dev,B_WRITE ,nptrim,uio)); |
658 | } | |
0399a117 | 659 | |
ef9a9a2c | 660 | /* |
0399a117 KS |
661 | * npreset - called as result of a UNIBUS reset. |
662 | */ | |
663 | ||
664 | npreset(uban) | |
665 | int uban; | |
666 | { | |
667 | ||
668 | register struct npmaster *mp; | |
669 | register struct npreq *rp; | |
670 | register struct uba_device *ui; | |
671 | int i; | |
672 | ||
ef9a9a2c MK |
673 | if(NpDebug & DEBENTRY) |
674 | printf("npreset(ubareset)\n"); | |
0399a117 KS |
675 | for(i = 0; i < NNP; i++) { |
676 | ||
677 | if(((ui = npdinfo[i]) == (struct uba_device *)NULL) || | |
678 | (ui->ui_ubanum != uban)) | |
679 | continue; | |
680 | ||
681 | mp = &npmasters[i]; | |
ef9a9a2c MK |
682 | |
683 | /* Get a Request structure */ | |
684 | ||
685 | while((rp = NpGetReq(mp->reqtab)) == NULL) { | |
686 | mp->reqtab->flags |= WANTREQ; | |
687 | sleep((caddr_t)(mp->reqtab),PZERO -1); | |
688 | } | |
689 | ||
690 | NpReset(mp,rp); | |
0399a117 | 691 | } |
ef9a9a2c MK |
692 | if(NpDebug & DEBENTRY) |
693 | printf("npreset(ubareset)...\n"); | |
0399a117 KS |
694 | } |
695 | ||
ef9a9a2c | 696 | |
0399a117 KS |
697 | /* |
698 | * Nppoll looks for work by polling each board. He goes to sleep if there are | |
699 | * no outstanding requests for him but reminds the board that he's there when | |
700 | * needed. | |
701 | */ | |
702 | ||
703 | NpPoll(mp,addr) | |
704 | struct npmaster *mp; | |
705 | caddr_t addr; | |
706 | { | |
707 | int error; | |
708 | ||
709 | struct { | |
710 | unsign16 request; | |
711 | unsign16 unit; | |
712 | }icpreq; | |
713 | ||
714 | if(NpDebug & DEBMAINT) | |
715 | printf("NpPoll: flags is %x.\n",mp->flags); | |
716 | ||
717 | while(TRUE) { | |
718 | ||
719 | for(mp = npmasters; mp; mp = mp->next) { | |
720 | ||
721 | if(mp->flags & BOARDREQ) { | |
722 | ||
723 | /* Get request type from master structure */ | |
724 | ||
725 | if(mp->flags & BRDRESET) { | |
726 | icpreq.request = ICPPOLL; | |
727 | mp->reqtab->reqcnt--; | |
728 | ||
729 | if(NpDebug & DEBMAINT) | |
730 | printf("Waking NpResetter!\n"); | |
731 | ||
732 | wakeup((caddr_t)(&mp->reqtab)); | |
733 | } | |
734 | else if(mp->flags & PANICREQ) | |
735 | icpreq.request = ICPPANIC; | |
736 | else if(mp->flags & DUMPREQ) | |
737 | icpreq.request = ICPDUMP; | |
738 | else if(mp->flags & LOADREQ) | |
739 | icpreq.request = ICPLOAD; | |
740 | else { | |
741 | mp->flags &= ~BOARDREQ; | |
742 | continue; | |
743 | } | |
744 | ||
745 | if(NpDebug & DEBMAINT) | |
746 | printf("ProcICP servicing %d \n",icpreq.request ); | |
747 | ||
748 | /* Request and unit number to be sent */ | |
749 | ||
750 | icpreq.unit = mp->unit; | |
751 | ||
752 | /* Copy service request to calling process */ | |
753 | ||
754 | error = copyout(&icpreq,addr,sizeof(icpreq)); | |
755 | ||
756 | /* Mark Poller as being unavailable */ | |
757 | ||
758 | NpState &= ~ICPAVAIL; | |
759 | ||
760 | return(error); | |
761 | } | |
762 | } | |
763 | ||
764 | /* Mark Poller as being available */ | |
765 | ||
766 | NpState |= ICPAVAIL; | |
767 | ||
c376c8e7 MK |
768 | if (error = tsleep((caddr_t)&NpState, (PZERO + 1) | PCATCH, |
769 | devio, 0)) | |
770 | return (error); | |
0399a117 KS |
771 | |
772 | if(NpDebug & DEBMAINT) | |
773 | printf("wakeup in NpPoll\n"); | |
774 | ||
775 | } | |
776 | } | |
777 | \f | |
778 | /* | |
779 | * Software initialization of Driver data structures for the specified unit. | |
780 | */ | |
781 | ||
782 | NpSWinit(unit) | |
783 | int unit; | |
784 | { | |
785 | ||
786 | register int j; | |
787 | register struct npmaster *mp; | |
788 | register struct npspace *npsp; | |
789 | register struct CmdQue *cqp; | |
790 | int offset; | |
791 | ||
792 | if(NpDebug & DEBINIT) | |
793 | printf("SW reset on unit %d.\n",unit); | |
794 | ||
ef9a9a2c MK |
795 | np_icount[unit] = NPCLEAR; |
796 | np_mapreq[unit] = (struct npreq *) NPCLEAR; | |
797 | ||
0399a117 KS |
798 | /* Initialize master structure pointer for this unit */ |
799 | ||
800 | mp = &npmasters[unit]; | |
801 | ||
802 | /* Initialize unit buffer headers */ | |
803 | ||
804 | np_tab[unit].b_active = 0; | |
805 | np_tab[unit].b_actf = 0; | |
806 | ||
807 | /* UBA device structure for this unit */ | |
808 | ||
809 | mp->devp = npdinfo[unit]; | |
810 | ||
811 | /* Interrupt vector for this unit */ | |
812 | ||
813 | mp->vector = npvectors[unit]; | |
814 | ||
815 | if(unit == (NNP -1)) | |
816 | mp->next = (struct npmaster *)NULL; | |
817 | else mp->next = &npmasters[unit + 1]; | |
818 | ||
819 | /* | |
820 | * Guarantee alignment of shared memory area on a | |
821 | * 16 byte boundary as required by I-Board | |
822 | */ | |
823 | ||
824 | mp->shmemp = &npspaces[unit]; | |
825 | mp->shmemp = (struct npspace *)ROUND16((int)(mp->shmemp)); | |
826 | ||
827 | /* Base address of this controller */ | |
828 | ||
829 | mp->iobase = (struct NPREG *)(mp->devp->ui_addr); | |
830 | ||
831 | if(NpDebug & DEBMEM) { | |
832 | printf("Npspaces starts at %x.\n",npspaces); | |
833 | printf("Shared memory starts at %x.\n",mp->shmemp); | |
834 | printf("End of shared memory is %x.\n",&npspaces[unit + 1]); | |
835 | printf("Iobase is %x.\n",mp->iobase); | |
836 | printf("Npmasters start at %x\n",npmasters); | |
837 | printf("Reqhdr start at %x\n",reqhdr); | |
838 | printf("Npreqs start at %x\n",npreqs); | |
839 | } | |
840 | ||
841 | /* Initialize the request header */ | |
842 | ||
843 | mp->reqtab = &reqhdr[unit]; | |
844 | ||
845 | /* Unit initialization */ | |
846 | ||
847 | mp->unit = unit; | |
848 | ||
849 | /* Initialize Status Block */ | |
850 | ||
851 | npsp = mp->shmemp; | |
852 | offset = (int) (mp->shmemp); | |
853 | ||
854 | npsp->statblock.sb_drw = 0; | |
855 | npsp->statblock.sb_hcw = HOSTCONF; | |
856 | npsp->statblock.sb_dcw = 0; | |
857 | npsp->statblock.sb_dpm = 0; | |
858 | ||
859 | npsp->statblock.sb_dcq = (unsign16)((int)(&npsp->devcq))-offset; | |
860 | ||
861 | npsp->statblock.sb_hcq = (unsign16)((int)(&npsp->hostcq))-offset; | |
862 | ||
863 | /* Initialize Device Command Queue */ | |
864 | ||
865 | cqp = (struct CmdQue *) &npsp->devcq; | |
866 | ||
867 | if(NpDebug & DEBCQ) | |
868 | printf("Device CQ at %x\n",cqp); | |
869 | ||
870 | cqp->scanflag = NPCLEAR; | |
871 | cqp->chngflag = NPCLEAR; | |
872 | ||
873 | cqp->cq_add = (unsign16)(int)(&cqp->cq_cqe[0]) - offset; | |
874 | cqp->cq_rem = cqp->cq_add; | |
875 | ||
876 | cqp->cq_wrap = (unsign16)(int)(&cqp->cq_cqe[NUMCQE]) - offset; | |
877 | ||
878 | for(j = 0; j < NUMCQE; j++) | |
879 | cqp->cq_cqe[j] = (unsign16)NULL; | |
880 | ||
881 | /* Initialize Host Command Queue */ | |
882 | ||
883 | cqp = (struct CmdQue *) &npsp->hostcq; | |
884 | ||
885 | if(NpDebug & DEBCQ) | |
886 | printf("HOST CQ at %x\n",cqp); | |
887 | ||
888 | cqp->scanflag = NPCLEAR; | |
889 | cqp->chngflag = NPCLEAR; | |
890 | ||
891 | cqp->cq_add = (unsign16)(int)(&cqp->cq_cqe[0]) - offset; | |
892 | cqp->cq_rem = cqp->cq_add; | |
893 | ||
894 | cqp->cq_wrap = (unsign16)(int)(&cqp->cq_cqe[NUMCQE]) - offset; | |
895 | ||
896 | for(j = 0; j < NUMCQE; j++) | |
897 | cqp->cq_cqe[j] = (unsign16)NULL; | |
898 | ||
899 | /* | |
900 | * Initialize the reqid of the elements to the address | |
901 | * of the corresponding Npreq structure. These don't change. | |
902 | */ | |
903 | ||
904 | for(j = 0; j < NUMCQE; j++) | |
905 | npsp->elements[j].cqe_reqid = &npreqs[unit][j]; | |
906 | ||
907 | /* | |
908 | * Initialize the Request Header (reqhdr), free list of | |
909 | * npreqs, and pointers to CQEs. | |
910 | */ | |
911 | ||
912 | reqhdr[unit].forw = reqhdr[unit].back = &reqhdr[unit]; | |
913 | reqhdr[unit].free = &npreqs[unit][0]; | |
914 | ||
915 | for(j = 0; j < NUMCQE; j++) { | |
0399a117 KS |
916 | npreqs[unit][j].free = &npreqs[unit][j + 1]; |
917 | npreqs[unit][j].element = &npsp->elements[j]; | |
918 | npreqs[unit][j].forw = npreqs[unit][j].back = (struct npreq *)NULL; | |
ef9a9a2c | 919 | npreqs[unit][j].flags = NPCLEAR; |
0399a117 KS |
920 | } |
921 | npreqs[unit][--j].free = &reqhdr[unit]; | |
922 | ||
923 | /* | |
924 | * Set up the UNIBUS I/O Map Registers for the | |
925 | * Shared memory area. | |
926 | */ | |
927 | ||
928 | mp->iomapbase = uballoc(mp->devp->ui_ubanum,(caddr_t)(mp->shmemp),sizeof(struct npspace),0); | |
929 | ||
930 | ||
931 | if(NpDebug & DEBENTRY) | |
932 | printf("SW_Init...\n"); | |
ef9a9a2c | 933 | return(0); |
0399a117 KS |
934 | } |
935 | \f | |
936 | /* | |
937 | * NpHWinit() issues a hardware reset to the specified board and waits | |
938 | * for on-board diagnostics to complete. It returns 0 if the board is | |
939 | * present and passed diagnostics, an error value otherwise. | |
940 | */ | |
941 | ||
942 | NpHWinit(unit) | |
943 | int unit; | |
944 | { | |
945 | register struct npmaster *mp; | |
946 | struct NPREG *REG; | |
947 | unsign16 status; | |
948 | int dflag; | |
949 | ||
950 | if(unit >= NNP) | |
951 | return(ENXIO); | |
952 | ||
953 | mp = &npmasters[unit]; | |
954 | ||
955 | if(NpDebug & DEBENTRY) | |
956 | printf("NpHWinit\n"); | |
957 | ||
958 | /* See if the board is out there */ | |
959 | ||
960 | REG = (struct NPREG *)mp->iobase; | |
961 | ||
962 | if(NpDebug & DEBINIT) | |
963 | printf("REG in HWinit is %x.\n",mp->iobase); | |
964 | ||
965 | if(!(mp->flags & BRDRESET)) | |
966 | ||
967 | if(badaddr(REG,2)) { | |
968 | mp->flags |= BADBOARD; | |
969 | printf("\nNP100 unit %d not found!\n",unit); | |
970 | return(ENXIO); | |
971 | } | |
972 | ||
973 | ||
0399a117 KS |
974 | if(NpDebug & DEBENTRY) |
975 | printf("Resetting the NP100 Board at %x\n",mp->iobase); | |
976 | ||
977 | /* Reset the Board */ | |
978 | ||
979 | RESET(mp); | |
980 | ||
981 | dflag = NPCLEAR; | |
982 | ||
983 | timeout(NpTimer,&dflag,DIAGTIME); | |
984 | ||
985 | /* Wait for Enable and Read Data Ready to go high */ | |
986 | ||
987 | while(! ((RCSR1(mp->iobase) & NPENB) && (RCSR1(mp->iobase) & NPRDR))) { | |
988 | if(dflag) | |
989 | break; | |
990 | ||
991 | } | |
992 | ||
993 | untimeout(NpTimer,&dflag); | |
994 | ||
995 | if(NpDebug & DEBINIT) | |
996 | printf("np reset %d \n",dflag); | |
997 | ||
998 | if(dflag) { | |
999 | mp->flags |= BADBOARD; | |
1000 | printf("NP100 Unit %d timed out!\n",unit); | |
1001 | return(EIO); | |
1002 | } | |
1003 | ||
1004 | status = RCSR0(mp->iobase); | |
1005 | ||
1006 | /* Check for Hardware OK */ | |
1007 | ||
1008 | if(!(RCSR1(mp->iobase) & NPHOK)) { | |
1009 | mp->flags |= BADBOARD; | |
0399a117 KS |
1010 | printf("NP100 Unit %d Failed diagnostics!\n",unit); |
1011 | printf("Status from CSR0: %x.\n",status); | |
1012 | return(EIO); | |
1013 | } | |
1014 | ||
1015 | if(NpDebug & DEBENTRY) | |
1016 | printf("HWinit...\n"); | |
1017 | ||
1018 | return(0); | |
1019 | } | |
1020 | \f | |
1021 | /* | |
1022 | * NP Driver Interrupt Handler | |
1023 | */ | |
1024 | ||
1025 | npintr(unit) | |
1026 | int unit; | |
1027 | { | |
1028 | register struct npmaster *mp; | |
1029 | register struct buf *bp; | |
1030 | ||
1031 | if(NpDebug & DEBENTRY) | |
1032 | printf("npintr on unit %d!\n",unit); | |
1033 | ||
1034 | mp = &npmasters[unit]; | |
ef9a9a2c | 1035 | np_icount[unit]++; |
0399a117 KS |
1036 | |
1037 | if(NpDebug & DEBINTR) | |
ef9a9a2c MK |
1038 | printf("npintr mp->flags = %x interupt count = %x\n", |
1039 | mp->flags, np_icount[unit]); | |
0399a117 KS |
1040 | |
1041 | /* Wake up anyone sleeping on a CSR0 Command */ | |
1042 | ||
1043 | if(mp->flags & CSRPEND) { | |
1044 | ||
1045 | mp->flags &= ~CSRPEND; | |
1046 | if(np_tab[mp->unit].b_active) { | |
1047 | np_tab[mp->unit].b_active = 0; | |
1048 | bp = np_tab[mp->unit].b_actf; | |
1049 | np_tab[mp->unit].b_actf = bp->av_forw; | |
1050 | ||
1051 | if(NpDebug & DEBINTR) | |
1052 | printf("bp = %x resid = %d forw = %x\n",bp, | |
1053 | bp->b_resid,bp->av_forw); | |
1054 | ||
1055 | bp->b_resid = 0; | |
1056 | iodone(bp); | |
1057 | } | |
1058 | if(mp->flags & PANIC3) { | |
1059 | mp->flags &= ~PANIC3; | |
1060 | mp->flags = AVAILABLE; | |
1061 | ubarelse(mp->devp->ui_ubanum,&panicmap); | |
1062 | } | |
1063 | if(mp->flags & PANIC2) { | |
1064 | mp->flags &= ~PANIC2; | |
1065 | printf("Panic Message: %s",NpPbuf); | |
1066 | mp->flags |= PANIC3; | |
1067 | NpPbuf[0] = 0; | |
1068 | NPIO(mp,(paddr_t)((int) panicmap & UBADDRMASK),(paddr_t)pstring,sizeof(NpPbuf),B_WRITE); | |
1069 | } | |
1070 | if(mp->flags & PANIC1) { | |
1071 | mp->flags &= ~PANIC1; | |
1072 | mp->flags |= PANIC2; | |
1073 | ubarelse(mp->devp->ui_ubanum,&panicmap); | |
1074 | panicmap = uballoc(mp->devp->ui_ubanum,(caddr_t)NpPbuf,sizeof(NpPbuf),0); | |
1075 | pstring = (caddr_t)((panaddr[1] << 4) + panaddr[0]); | |
1076 | NPIO(mp,(paddr_t)pstring,(paddr_t)((int) panicmap & UBADDRMASK),sizeof(NpPbuf),B_READ); | |
1077 | } | |
1078 | ||
1079 | wakeup((caddr_t)mp); | |
1080 | goto out; | |
1081 | } | |
1082 | ||
1083 | /* Mark unit as being available if Device Protocol Mask set */ | |
1084 | ||
1085 | if(!(mp->flags & AVAILABLE)) { | |
1086 | ||
8468e120 | 1087 | if((mp->shmemp->statblock.sb_dpm) && (!(mp->flags & BRDRESET))) |
0399a117 KS |
1088 | |
1089 | mp->flags = AVAILABLE; | |
0399a117 KS |
1090 | } |
1091 | ||
1092 | /* Honor service requests from the device */ | |
1093 | ||
1094 | switch(mp->shmemp->statblock.sb_drw) { | |
1095 | ||
1096 | case NOREQ: | |
1097 | break; | |
1098 | ||
1099 | case NPPANIC: | |
1100 | ||
1101 | printf("\nPanic from NP100 unit %d!\n",mp->unit); | |
1102 | mp->flags &= ~AVAILABLE; | |
1103 | mp->flags |= PANIC1; | |
1104 | ||
1105 | /* Clear device request word */ | |
1106 | ||
1107 | mp->shmemp->statblock.sb_drw = 0; | |
1108 | ||
1109 | panicmap = uballoc(mp->devp->ui_ubanum,(caddr_t)panaddr,sizeof(panaddr),0); | |
1110 | NPIO(mp,(paddr_t)NPPSADDR,(paddr_t)((int)panicmap & UBADDRMASK),sizeof(panaddr),B_READ); | |
1111 | goto out; | |
1112 | break; | |
1113 | ||
1114 | case NPDUMP: | |
1115 | mp->flags |= (DUMPREQ | BOARDREQ); | |
1116 | ||
1117 | /* Clear device request word */ | |
1118 | ||
1119 | mp->shmemp->statblock.sb_drw = 0; | |
1120 | ||
1121 | if(NpState & ICPAVAIL) | |
1122 | wakeup((caddr_t)&NpState); | |
1123 | break; | |
1124 | ||
1125 | case NPLOAD: | |
1126 | mp->flags |= (LOADREQ | BOARDREQ); | |
1127 | ||
1128 | /* Clear device request word */ | |
1129 | ||
1130 | mp->shmemp->statblock.sb_drw = 0; | |
1131 | ||
1132 | if(NpState & ICPAVAIL) | |
1133 | wakeup((caddr_t)&NpState); | |
1134 | break; | |
1135 | ||
1136 | default: | |
1137 | printf("Bad Req: %x.\n",mp->shmemp->statblock.sb_drw); | |
1138 | goto out; | |
1139 | ||
1140 | } | |
1141 | ||
1142 | /* Process the Host Command Queue for this device */ | |
1143 | ||
1144 | NpProcQueue(mp); | |
1145 | ||
1146 | out: | |
1147 | CLEARINT(mp); /* Clear the interrupt */ | |
1148 | ||
1149 | if(NpDebug & DEBENTRY) | |
1150 | printf("npintr...\n"); | |
1151 | ||
1152 | return(1); /* Interrupt serviced */ | |
1153 | ||
1154 | } | |
1155 | \f | |
1156 | /* | |
1157 | * This routine, called from the interrupt handler, is used to process the | |
1158 | * Host Command Queue for the specified device. | |
1159 | */ | |
1160 | ||
1161 | NpProcQueue(mp) | |
1162 | struct npmaster *mp; | |
1163 | { | |
1164 | register struct CmdQue *cqp; | |
1165 | register struct CQE *ep; | |
1166 | register struct npreq *rp; | |
1167 | register int base; | |
1d5affa5 | 1168 | int s; |
0399a117 KS |
1169 | |
1170 | if(NpDebug & DEBENTRY) | |
1171 | printf("NpProcQueue\n"); | |
1172 | ||
1173 | cqp = &mp->shmemp->hostcq; /* Command Queue pointer */ | |
1174 | ||
1d5affa5 MK |
1175 | s = spl5(); |
1176 | if(mp->flags & SCANNING) { | |
1177 | splx(s); | |
0399a117 | 1178 | return; |
1d5affa5 MK |
1179 | } |
1180 | mp->flags |= SCANNING; | |
1181 | splx(s); | |
0399a117 | 1182 | |
1d5affa5 | 1183 | cqp->scanflag | = ON; |
0399a117 KS |
1184 | |
1185 | base = (int)mp->shmemp; /* Shared memory base address */ | |
1186 | ||
1d5affa5 | 1187 | while(1) { |
0399a117 | 1188 | |
1d5affa5 MK |
1189 | cqp->scanflag |= ON; |
1190 | cqp->chngflag &= ~ON; | |
0399a117 KS |
1191 | while(ep = NpRemCQE(cqp,base)) { |
1192 | ||
1193 | rp = ep->cqe_reqid; | |
1194 | ||
1195 | if(NpDebug & DEBCQE) | |
1196 | printf("cqe_sts is %x ep = %x\n",ep->cqe_sts,ep); | |
1197 | ||
1198 | switch (ep->cqe_sts) { | |
1199 | ||
1200 | case NPDONE: | |
1201 | rp->flags |= REQDONE; /* Normal completion */ | |
1202 | break; | |
1203 | case NPIFC: /* IFC Request */ | |
1204 | rp->flags |= IOIFC; | |
1205 | break; | |
1206 | case NPPERR: /* Protocol Error */ | |
1207 | rp->flags |= (NPPERR | REQDONE); | |
1208 | break; | |
1209 | case NPMERR: /* Memory allocation */ | |
1210 | rp->flags |= (NPMERR | REQDONE); | |
1211 | break; | |
1212 | default: /* Error on Board */ | |
1213 | rp->flags |= (IOERR | REQDONE); | |
1214 | break; | |
1215 | ||
1216 | } | |
1217 | ||
1218 | if(NpDebug & DEBCQE) { | |
1219 | printf("flag is %x reqid = %x\n",rp->flags,ep->cqe_reqid); | |
1220 | printf("wakeup in procqueue\n"); | |
1221 | } | |
1222 | ||
1223 | if(rp->intr) { | |
1224 | ||
1225 | if(NpDebug & DEBINTR) | |
1226 | printf("calling usr intr at %x\n", | |
1227 | rp->intr); | |
1228 | ||
1229 | /* Call interrupt routine */ | |
1230 | ||
1231 | (*rp->intr)(mp,rp); | |
0399a117 KS |
1232 | } |
1233 | else { | |
1234 | ||
1235 | if(NpDebug & DEBINTR) | |
1236 | printf("waking up %x\n",rp); | |
1237 | ||
ef9a9a2c | 1238 | /* if(rp->flags & NPUIO) |
0399a117 KS |
1239 | iodone(&rp->buf); |
1240 | else wakeup((caddr_t) (rp)); /* Awaken */ | |
1241 | ||
ef9a9a2c | 1242 | wakeup((caddr_t)(rp)); /* Awaken */ |
0399a117 KS |
1243 | if(NpDebug & DEBINTR) |
1244 | printf("AWAKE\n"); | |
1245 | } | |
0399a117 KS |
1246 | } |
1247 | ||
1d5affa5 | 1248 | cqp->scanflag &= ~ON; |
0399a117 | 1249 | if(!(cqp->chngflag & ON)) |
1d5affa5 | 1250 | break; |
0399a117 KS |
1251 | |
1252 | } | |
1253 | ||
1d5affa5 | 1254 | mp->flags &= ~SCANNING; |
0399a117 KS |
1255 | if(NpDebug & DEBENTRY) |
1256 | printf("NpProcQueue...\n"); | |
1257 | } | |
1258 | ||
1259 | /* | |
1260 | * NpIFC - processes an IFC (Internal Fuction Call) request | |
1261 | * NOTE: this function must be called from the user context | |
1262 | * on all virtual pageing systems | |
1263 | * | |
1264 | */ | |
1265 | NpIFC(mp,rp) | |
1266 | register struct npmaster *mp; | |
1267 | register struct npreq *rp; | |
1268 | { | |
1269 | register struct CQE *ep; | |
1270 | ||
1271 | if(NpDebug & DEBENTRY) | |
1272 | printf("NpIFC\n"); | |
1273 | ||
1274 | ep = rp->element; | |
1275 | rp->flags &= ~IOIFC; | |
1276 | switch(ep->cqe_func) { | |
1277 | ||
1278 | case NPUNLOCK: /* Unlock process, free up mapping registers */ | |
1279 | ||
1280 | if(NpDebug & DEBIFC) | |
1281 | printf("NPUNLOCK\n"); | |
1282 | ||
1283 | if(rp->mapbase) | |
1284 | NpUnMapMem(mp,rp); | |
1285 | break; | |
1286 | ||
1287 | case NPLOCK: /* Lock process, get mapping registers */ | |
1288 | ||
1289 | if(NpDebug & DEBIFC) | |
1290 | printf("NPLOCK\n"); | |
1291 | NpMapMem(mp,rp,rp->virtmem,rp->bytecnt); | |
1292 | ep->cqe_dma[0] = LOWORD(rp->bufaddr); | |
1293 | ep->cqe_dma[1] = HIWORD(rp->bufaddr); | |
1294 | break; | |
1295 | ||
1296 | case NPREMAP: | |
1297 | ||
1298 | if(NpDebug & DEBIFC) | |
1299 | printf("NPREMAP\n"); | |
1300 | ||
1301 | /* Remap user buffer and update buffer offset */ | |
1302 | #ifdef USG | |
1303 | np_remapmem(rp,rp->virtmem); | |
1304 | ep->cqe_dma[0] = LOWORD(rp->bufaddr); | |
1305 | ep->cqe_dma[1] = HIWORD(rp->bufaddr); | |
1306 | break; | |
1307 | #endif | |
1308 | ||
1309 | default: | |
1310 | if(NpDebug & DEBIFC) | |
1311 | printf("Bad case %x in IFC\n", ep->cqe_func); | |
1312 | ||
1313 | rp->flags |= (REQDONE | IOERR); | |
1314 | break; | |
1315 | } | |
1316 | } | |
1317 | \f | |
1318 | /* | |
1319 | * The following contains various routines for allocating and deallocating | |
1320 | * structures used by the NP Driver. Routines are also here for addding | |
1321 | * and removing Command Queue Elements from a Command Queue. | |
1322 | */ | |
1323 | ||
1324 | /* | |
1325 | * Get a free NP Request structure from the list pointed to by head. Returns | |
1326 | * a pointer to a npreq or NULL if none left. | |
1327 | */ | |
1328 | ||
1329 | struct npreq * | |
1330 | NpGetReq(head) | |
1331 | struct npreq *head; | |
1332 | { | |
1333 | ||
1334 | register struct npreq *p; | |
1335 | ||
1336 | p = head->free; | |
1337 | head->free = p->free; | |
ef9a9a2c MK |
1338 | if (p->flags & REQALOC) |
1339 | printf("GetReq: Req %x already allocated\n", p); | |
1340 | p->flags &= WANTREQ; | |
1341 | if (p != head) | |
1342 | p->flags |= REQALOC; | |
0399a117 KS |
1343 | return(p==head ? (struct npreq *)NULL : p); |
1344 | } | |
1345 | ||
1346 | /* | |
1347 | * Return a NP Request structure to the free list pointed to by head. | |
1348 | */ | |
1349 | ||
1350 | NpFreeReq(head,nprp) | |
1351 | register struct npreq *head, *nprp; | |
1352 | { | |
ef9a9a2c | 1353 | int s; |
0399a117 KS |
1354 | |
1355 | if(NpDebug & DEBREQ) | |
1356 | printf("NpFreeReq, head is %x rp is %x\n",head,nprp); | |
1357 | ||
ef9a9a2c MK |
1358 | if (nprp == NULL) { |
1359 | printf("FREEREQ: attempt to free null pointer\n"); | |
1360 | return; | |
1361 | } | |
1362 | if (!(nprp->flags & REQALOC)) { | |
1363 | printf("FREEREQ: attempt to free unallocated request %x\n", | |
1364 | nprp); | |
1365 | return; | |
1366 | } | |
1367 | if (nprp->flags & REQUSE) | |
1368 | printf("FREEREQ: freeing unremoved request %x\n", nprp); | |
1369 | ||
1370 | s = spl5(); | |
0399a117 KS |
1371 | nprp->forw = nprp->back = (struct npreq *)NULL; |
1372 | nprp->free = head->free; | |
1373 | head->free = nprp; | |
ef9a9a2c MK |
1374 | nprp->flags &= ~REQALOC; |
1375 | splx(s); | |
0399a117 KS |
1376 | |
1377 | /* Wake up any processes waiting for a request structure */ | |
1378 | ||
1379 | if(head->flags & WANTREQ) { | |
1380 | head->flags &= ~WANTREQ; | |
1381 | wakeup((caddr_t)head); | |
1382 | } | |
1383 | ||
1384 | if(NpDebug & DEBENTRY) | |
1385 | printf("NpFreeReq...\n"); | |
1386 | } | |
1387 | ||
1388 | /* | |
1389 | * Add a Command Queue Element onto the specified Command Queue and | |
1390 | * update its Add offset. | |
1391 | */ | |
1392 | ||
1393 | NpAddCQE(ep,cqp,mp) | |
1394 | struct CQE *ep; | |
1395 | struct CmdQue *cqp; | |
1396 | struct npmaster *mp; | |
1397 | { | |
1398 | ||
1399 | register unsign16 *temp; | |
1400 | register unsign16 cqe_offset; | |
1401 | register int base; | |
1402 | ||
1403 | base = (int)mp->shmemp; /* Shared memory base address */ | |
1404 | ||
1405 | temp = (unsign16 *)(base + cqp->cq_add); /* Offset to add element */ | |
1406 | ||
1407 | cqe_offset = (unsign16)((int)ep - base); | |
1408 | ||
1409 | if(*temp) { /* Should never happen */ | |
1410 | ||
1411 | printf("No more room on Command Queue!\n"); | |
0399a117 KS |
1412 | return; |
1413 | } | |
1414 | else *temp = cqe_offset; /* Enter this request's offset */ | |
1415 | ||
0399a117 KS |
1416 | /* Update cqe_add where next request is to be added */ |
1417 | ||
1418 | cqp->cq_add += sizeof(unsign16); | |
1419 | ||
1420 | if(cqp->cq_add == cqp->cq_wrap) /* Wrap if necessary */ | |
1421 | cqp->cq_add = (unsign16)((int)cqp->cq_cqe - base); | |
1422 | ||
1d5affa5 MK |
1423 | cqp->chngflag |= ON; /* Set change flag unconditionally */ |
1424 | ||
0399a117 KS |
1425 | /* Interrupt the Board if his scan flag isn't on */ |
1426 | ||
1427 | if(!(cqp->scanflag & ON)) | |
1428 | ||
1429 | INTNI(mp); /* Interrupt the Board */ | |
1430 | ||
1431 | } | |
1432 | ||
1433 | /* | |
1434 | * The NpRemCQE routine is used to remove the next CQE from the Command Queue | |
1435 | * specified by cqp. The common offset of shared memory used by the device | |
1436 | * is specified by base. NpRemCQE returns a pointer to the next CQE or | |
1437 | * NULL if there are none left. This routine will also update the cqe_rem | |
1438 | * offset which specifies where the next element to be removed from the | |
1439 | * queue is located. | |
1440 | */ | |
1441 | ||
1442 | struct CQE * | |
1443 | NpRemCQE(cqp,base) | |
1444 | struct CmdQue *cqp; | |
1445 | int base; | |
1446 | { | |
1447 | ||
1448 | register unsign16 *temp; | |
1449 | register unsign16 cqe_offset; | |
1450 | ||
1451 | cqp->chngflag &= ~ON; /* Turn off unconditionally */ | |
1452 | ||
1453 | /* Get address of element to remove */ | |
1454 | ||
1455 | temp = (unsign16 *)(base +cqp->cq_rem); | |
1456 | ||
1457 | if(*temp == NULL) /* If none left, go home */ | |
1458 | return((struct CQE *) NULL); | |
1459 | ||
1460 | else cqe_offset = *temp; /* Offset of CQE to remove */ | |
1461 | ||
1462 | /* Update the Command Queue's cqe_rem offset */ | |
1463 | ||
1464 | *temp = NULL; /* Clear out this entry */ | |
1465 | ||
1466 | cqp->cq_rem += sizeof(unsign16); /* Bump offset */ | |
1467 | ||
1468 | if(cqp->cq_rem == cqp->cq_wrap) /* Wrap if necessary */ | |
1469 | cqp->cq_rem = (unsign16)((int)cqp->cq_cqe - base); | |
1470 | ||
1471 | temp = (unsign16 *)(base + cqe_offset); /* CQE address */ | |
1472 | return((struct CQE *)temp); /* is returned */ | |
1473 | } | |
1474 | ||
1475 | /* | |
1476 | * NpAddReq will add the specified npreq structure to the queue controlled | |
1477 | * by head. | |
1478 | */ | |
1479 | ||
1480 | NpAddReq(head,rp) | |
1481 | register struct npreq *head, *rp; | |
1482 | { | |
ef9a9a2c | 1483 | int s; |
0399a117 | 1484 | |
ef9a9a2c | 1485 | if (NpDebug & (DEBENTRY|DEBREQ)) |
0399a117 KS |
1486 | printf("NpAddReq: %x\n",rp); |
1487 | ||
ef9a9a2c MK |
1488 | if (rp->flags & REQUSE) |
1489 | printf("ADDREQ: Request %x allready in use\n", rp); | |
1490 | ||
1491 | s = spl7(); | |
0399a117 KS |
1492 | rp->forw = head->forw; |
1493 | rp->forw->back = rp; | |
1494 | rp->back = head; | |
1495 | head->forw = rp; | |
ef9a9a2c MK |
1496 | rp->flags |= REQUSE; |
1497 | splx(s); | |
0399a117 KS |
1498 | |
1499 | if(NpDebug & DEBENTRY) | |
1500 | printf("NpAddReq...\n"); | |
1501 | } | |
1502 | ||
1503 | /* | |
1504 | * NpRemReq is used to remove a npreq structure from the queue specified by | |
1505 | * head. | |
1506 | */ | |
1507 | ||
1508 | NpRemReq(rp) | |
1509 | register struct npreq *rp; | |
1510 | { | |
ef9a9a2c | 1511 | int s; |
0399a117 | 1512 | |
ef9a9a2c | 1513 | if (NpDebug & (DEBENTRY|DEBREQ)) |
0399a117 KS |
1514 | printf("NpRemReq: %x\n",rp); |
1515 | ||
ef9a9a2c MK |
1516 | if (rp == NULL) { |
1517 | printf("REMREQ: null pointer removal requested\n"); | |
1518 | return; | |
1519 | } | |
1520 | if (!(rp->flags & REQUSE)) { | |
1521 | printf("REMREQ: trying to rem unused req %x\n", rp); | |
1522 | return; | |
1523 | } | |
1524 | if (!(rp->flags & REQALOC)) { | |
1525 | printf("REMREQ: trying to rem unallocated req %x\n", rp); | |
1526 | return; | |
1527 | } | |
1528 | ||
1529 | s = spl7(); | |
0399a117 KS |
1530 | rp->back->forw = rp->forw; |
1531 | rp->forw->back = rp->back; | |
ef9a9a2c MK |
1532 | rp->flags &= ~REQUSE; |
1533 | splx(s); | |
0399a117 KS |
1534 | |
1535 | if(NpDebug & DEBENTRY) | |
1536 | printf("NpRemReq...\n"); | |
1537 | } | |
1538 | ||
1539 | \f | |
1540 | /* | |
1541 | * The following routines are used to communicate with the | |
1542 | * NI Hardware via the CSR0 commands. These commands are issued during | |
1543 | * the hardware initializtion process and may also be used subsequently | |
1544 | * by privileged processes who wish to communicate in this way. The | |
1545 | * convention for passing data as a Command Block is discussed in detail | |
1546 | * in the NI1510 UNIBUS Compatible Ethernet Communications Processor | |
1547 | * Hardware Specification. | |
1548 | */ | |
1549 | ||
1550 | NpSendCSR0(iobase,src,bcount) | |
1551 | struct NPREG *iobase; | |
1552 | register unsign16 *src; | |
1553 | int bcount; | |
1554 | { | |
1555 | register int wcount; | |
1556 | int i; | |
1557 | int csrflag; | |
1558 | unsign16 tmp; | |
1559 | ||
1560 | if(NpDebug & DEBENTRY) | |
1561 | printf("NpSendCSR0\n"); | |
1562 | ||
1563 | /* Jolt the board into CSR0 command mode if necessary */ | |
1564 | ||
1565 | if(!(RCSR1(iobase) & NPENB)){ | |
1566 | tmp = NPCLEAR; /* MC68000 clr reads before writing */ | |
1567 | WCSR0(iobase,tmp); | |
1568 | } | |
1569 | ||
1570 | wcount = (bcount +1) >> 1; /* Convert byte count to word count */ | |
1571 | ||
1572 | /* Clear timer flag before beginning the timer */ | |
1573 | ||
1574 | csrflag = NPCLEAR; | |
1575 | timeout(NpTimer,&csrflag,DIAGTIME); | |
1576 | ||
1577 | for(i = 0; (i < wcount) & (csrflag == NPCLEAR); i++) { | |
1578 | while(! ((RCSR1(iobase) & NPENB) && (RCSR1(iobase) & NPRDY))) | |
1579 | if(csrflag) break; | |
1580 | WCSR0(iobase,*src); | |
1581 | src++; /* Better do this WCSR is a macro */ | |
1582 | } | |
1583 | ||
1584 | /* Clear the timer entry */ | |
1585 | ||
1586 | untimeout(NpTimer,&csrflag); | |
1587 | ||
1588 | /* Error if timer went off */ | |
1589 | ||
1590 | if(csrflag) | |
1591 | return(EIO); | |
1592 | ||
1593 | if(NpDebug & DEBENTRY) | |
1594 | printf("NpSendCSR0...\n"); | |
1595 | return(0); | |
1596 | } | |
1597 | ||
1598 | /* | |
1599 | * NpSetIntLev sets the UNIBUS interrupt vector to be used by the NP board when | |
1600 | * interupting the host. The board is specified by mp. | |
1601 | */ | |
1602 | ||
1603 | NpSetIntLevel(mp,level) | |
1604 | struct npmaster *mp; | |
1605 | int level; | |
1606 | { | |
1607 | ||
1608 | struct { | |
1609 | unsign16 cmd_word; | |
1610 | unsign16 int_level; | |
1611 | }cmd_block; | |
1612 | ||
1613 | cmd_block.cmd_word = NPCBI | CBICNT; | |
1614 | cmd_block.int_level = level; | |
1615 | ||
1616 | return(NpSendCSR0(mp->iobase,(unsign16 *)&cmd_block,(int)sizeof(cmd_block))); | |
1617 | } | |
1618 | ||
1619 | /* | |
1620 | * NpSetMemAddr is used to declare the shared memory area address to be used | |
1621 | * for communication between the driver and the device. This address is used | |
1622 | * to access data structures by acting as a base from which defined offsets | |
1623 | * locate data. The board is specified by mp. | |
1624 | */ | |
1625 | ||
1626 | NpSetMemAddr(mp,addr) | |
1627 | struct npmaster *mp; | |
1628 | caddr_t addr; | |
1629 | { | |
1630 | ||
1631 | caddr_t shmaddr; | |
1632 | int error; | |
1633 | ||
1634 | struct { | |
1635 | unsign16 cmd_word; | |
1636 | unsign16 hi_addr; | |
1637 | unsign16 lo_addr; | |
1638 | } cmd_block; | |
1639 | ||
1640 | if(NpDebug & DEBENTRY) | |
1641 | printf("NpSetMemAddr\n"); | |
1642 | ||
1643 | shmaddr = addr; | |
1644 | ||
1645 | if(NpDebug & DEBMEM) | |
1646 | printf("NpSetMemAddr, addr is %x shmaddr is %x.\n",addr,shmaddr); | |
1647 | ||
1648 | cmd_block.cmd_word = NPCMD | CMDCNT; | |
1649 | cmd_block.hi_addr = HIWORD(shmaddr); | |
1650 | cmd_block.lo_addr = LOWORD(shmaddr); | |
1651 | ||
1652 | error = NpSendCSR0(mp->iobase,(unsign16 *)&cmd_block,(int)sizeof(cmd_block)); | |
1653 | ||
1654 | if(NpDebug & DEBENTRY) | |
1655 | printf("NpSetMemAddr...\n"); | |
1656 | ||
1657 | return(error); | |
1658 | } | |
1659 | ||
1660 | ||
1661 | /* | |
1662 | * NpSetXeqAddr specifies the address at which the board should begin | |
1663 | * execution of its on-board software. It also indicates the shared memory | |
1664 | * address to be used. The board is specified by mp. | |
1665 | */ | |
1666 | ||
1667 | NpSetXeqAddr(mp,addr) | |
1668 | struct npmaster *mp; | |
1669 | caddr_t addr; | |
1670 | { | |
1671 | caddr_t shmaddr; | |
1672 | int error; | |
1673 | ||
1674 | struct { | |
1675 | unsign16 cmd_word; | |
1676 | unsign16 hi_addr; | |
1677 | unsign16 lo_addr; | |
1678 | unsign16 mhi_addr; | |
1679 | unsign16 mlo_addr; | |
1680 | } cmd_block; | |
1681 | ||
1682 | if(NpDebug & DEBENTRY) | |
1683 | printf("NpSetXeqAddr\n"); | |
1684 | ||
1685 | shmaddr = (caddr_t)((int)mp->iomapbase & UBADDRMASK); | |
1686 | ||
1687 | cmd_block.cmd_word = NPBGN | NPCMD | NPLST | (BGNCNT + CMDCNT); | |
1688 | cmd_block.hi_addr = HIWORD(addr); | |
1689 | cmd_block.lo_addr = LOWORD(addr); | |
1690 | cmd_block.mhi_addr = HIWORD(shmaddr); | |
1691 | cmd_block.mlo_addr = LOWORD(shmaddr); | |
1692 | ||
1693 | if(NpDebug & DEBINIT) { | |
1694 | printf("NpSetXeqAdddr: hi: %x lo: %x\n",HIWORD(addr), LOWORD(addr)); | |
1695 | printf("NpSetXeqAdddr: mhi: %x mlo: %x\n",HIWORD(shmaddr),LOWORD(shmaddr)); | |
1696 | } | |
1697 | ||
1698 | error = NpSendCSR0(mp->iobase,(unsign16 *)&cmd_block,(int)sizeof(cmd_block)); | |
1699 | ||
1700 | if(NpDebug & DEBENTRY) | |
1701 | printf("NpSetXeqAddr...\n"); | |
1702 | ||
1703 | return(error); | |
1704 | } | |
1705 | ||
1706 | /* | |
1707 | * NPIO issues a CSR0 load or dump request to the I-Board after packaging a | |
1708 | * CSR0 Command Block. | |
1709 | */ | |
1710 | ||
1711 | NPIO(mp,src,dest,count,dir) | |
1712 | struct npmaster *mp; | |
1713 | paddr_t dest; | |
1714 | paddr_t src; | |
1715 | unsign16 count; | |
1716 | int dir; /* Direction READ/WRITE */ | |
1717 | { | |
1718 | ||
1719 | int error; | |
1720 | ||
1721 | struct { | |
1722 | unsign16 cmd_word; /* Command Word */ | |
1723 | unsign16 shi_addr; /* High word of Source Address */ | |
1724 | unsign16 slo_addr; /* Low word of Source Address */ | |
1725 | unsign16 dhi_addr; /* High word of Destination Address */ | |
1726 | unsign16 dlo_addr; /* Low word of Destination Address */ | |
1727 | unsign16 count; /* Byte count */ | |
1728 | unsign16 intlevel; /* Interrupt level to host */ | |
1729 | } cmd_block; | |
1730 | ||
1731 | if(NpDebug & DEBENTRY) | |
1732 | printf("NPIO\n"); | |
1733 | if(NpDebug & DEBMAINT) { | |
1734 | printf("I/O src addr = %x, dest addr = %x \n",src,dest); | |
1735 | printf("I/O count = %d \n",count); | |
1736 | } | |
1737 | ||
ef9a9a2c | 1738 | cmd_block.cmd_word = NPCBI | (CBICNT + IOCNT); |
0399a117 KS |
1739 | cmd_block.intlevel = mp->vector; |
1740 | cmd_block.shi_addr = HIWORD(src); | |
1741 | cmd_block.slo_addr = LOWORD(src); | |
1742 | cmd_block.dhi_addr = HIWORD(dest); | |
1743 | cmd_block.dlo_addr = LOWORD(dest); | |
1744 | cmd_block.count = count; | |
ef9a9a2c MK |
1745 | if ((mp->flags & LSTCMD) == 0) |
1746 | cmd_block.cmd_word |= NPLST; | |
0399a117 KS |
1747 | if(dir == B_READ) |
1748 | cmd_block.cmd_word |= NPDMP; | |
1749 | else | |
1750 | cmd_block.cmd_word |= NPLD; | |
1751 | ||
1752 | ||
1753 | if(NpDebug & DEBIO) { | |
1754 | printf("cmd: %x int: %o shi: %x slo: %x dhi: %x dlo: %x cnt: %x\n", | |
1755 | cmd_block.cmd_word,cmd_block.intlevel,cmd_block.shi_addr,cmd_block.slo_addr, | |
1756 | cmd_block.dhi_addr,cmd_block.dlo_addr,cmd_block.count); | |
1757 | } | |
1758 | ||
1759 | mp->flags |= CSRPEND; /* CSR0 command pending */ | |
1760 | ||
1761 | error = NpSendCSR0(mp->iobase,(unsign16 *)&cmd_block,(int)sizeof(cmd_block)); | |
1762 | if(NpDebug & DEBENTRY) | |
1763 | printf("NPIO...\n"); | |
1764 | ||
1765 | return(error); | |
1766 | } | |
1767 | ||
1768 | ||
1769 | /* | |
1770 | * NpKill will terminate all outstanding requests for the specified board. | |
1771 | */ | |
1772 | ||
1773 | NpKill(mp,curr_rp) | |
1774 | struct npmaster *mp; | |
1775 | struct npreq *curr_rp; | |
1776 | { | |
1777 | struct npreq *rp; | |
1778 | int s; | |
1779 | ||
1780 | if(NpDebug & DEBENTRY) | |
1781 | printf("NpKill\n"); | |
1782 | ||
1783 | mp->reqtab->reqcnt = 0; /* Init request count */ | |
1784 | ||
1d5affa5 | 1785 | s = spl5(); /* Disable interrupts */ |
0399a117 KS |
1786 | |
1787 | /* Mark each active request as having an error and wake him up */ | |
1788 | ||
1789 | for(rp = mp->reqtab->forw;rp != mp->reqtab;rp = rp->forw) { | |
1790 | ||
1791 | if(rp == curr_rp) continue; | |
1792 | ||
1793 | rp->flags |= (IOABORT | REQDONE); | |
1794 | mp->reqtab->reqcnt++; | |
ef9a9a2c | 1795 | /* if(rp->flags & NPUIO) |
0399a117 | 1796 | iodone(&rp->buf); |
ef9a9a2c MK |
1797 | else */ |
1798 | wakeup((caddr_t)rp); | |
0399a117 KS |
1799 | } |
1800 | ||
1801 | if(NpDebug & DEBMAINT) | |
1802 | printf("NpKill, req count is %d\n",mp->reqtab->reqcnt); | |
1803 | ||
1804 | splx(s); | |
1805 | ||
1806 | if(NpDebug & DEBENTRY) | |
1807 | printf("NpKill...\n"); | |
1808 | ||
1809 | return(0); | |
1810 | ||
1811 | } | |
1812 | ||
1813 | /* Hardware and Software Initializations for the specified unit */ | |
1814 | ||
1815 | NpReset(mp,rp) | |
1816 | register struct npmaster *mp; | |
1817 | struct npreq *rp; | |
1818 | { | |
1819 | int error; | |
1820 | ||
1821 | if(NpDebug & DEBENTRY) | |
1822 | printf("NpReset!\n"); | |
1823 | ||
1824 | /* Mark board as being reset and make unavailable */ | |
1825 | ||
1826 | mp->flags = BRDRESET; | |
1827 | ||
1828 | /* Abort outstanding requests for this board */ | |
1829 | ||
1830 | mp->reqtab->reqcnt = 0; /* Init request count */ | |
1831 | ||
1832 | /* Wakeup Poller if available and wait until he's gone */ | |
1833 | ||
1834 | if(NpState & ICPAVAIL) { | |
1835 | ||
1836 | mp->flags |= BOARDREQ; | |
1837 | mp->reqtab->reqcnt++; | |
1838 | ||
1839 | if(NpDebug & DEBMAINT) | |
1840 | printf("Waking ICP in reset!\n"); | |
1841 | ||
1842 | wakeup((caddr_t)&NpState); | |
1843 | ||
1844 | while(mp->reqtab->reqcnt) | |
c376c8e7 MK |
1845 | if (error = tsleep((caddr_t)(&mp->reqtab), |
1846 | (PZERO + 1) | PCATCH, devio, 0)) | |
1847 | return (error); | |
0399a117 KS |
1848 | |
1849 | if(NpDebug & DEBMAINT) | |
1850 | printf("Reset:awoken by ICP senior!\n"); | |
1851 | ||
1852 | } | |
1853 | ||
1854 | /* Abort outstanding requests and wait till they're gone */ | |
1855 | ||
1856 | NpKill(mp,rp); | |
1857 | ||
1858 | while(mp->reqtab->reqcnt) { | |
1859 | ||
1860 | if(NpDebug & DEBMAINT) { | |
1861 | printf("Sleeping in NpReset on reqtab!\n"); | |
1862 | printf("Reqcnt is %d.\n",mp->reqtab->reqcnt); | |
1863 | } | |
1864 | ||
c376c8e7 MK |
1865 | if (error = tsleep((caddr_t)(&mp->reqtab), |
1866 | (PZERO + 1) | PCATCH, devio, 0)) | |
1867 | return (error); | |
0399a117 KS |
1868 | } |
1869 | ||
1870 | /* Free up I/O Map registers if any allocated */ | |
1871 | ||
1872 | if(mp->iomapbase) { | |
1873 | ||
1874 | if(NpDebug & DEBMEM) | |
1875 | printf("freeing shared memory map.\n"); | |
1876 | ||
1877 | ubarelse(mp->devp->ui_ubanum,&mp->iomapbase); | |
1878 | mp->iomapbase = 0; | |
1879 | } | |
1880 | ||
1881 | /* Initialize S/W data structures in NP Driver */ | |
1882 | ||
1883 | NpSWinit(mp->unit); /* Software initialization */ | |
1884 | ||
1885 | /* Hardware initialization of the board */ | |
1886 | ||
1887 | error = NpHWinit(mp->unit); /* Hardware initialization */ | |
1888 | ||
1889 | mp->flags &= ~BRDRESET; /* Initialization complete */ | |
1890 | ||
1891 | /* Initialize Pseudo-Drivers */ | |
1892 | ||
0399a117 KS |
1893 | if (IxReset) |
1894 | (*IxReset)(mp->unit, mp->devp->ui_ubanum, rp); | |
1895 | ||
1896 | /* Clear Poller's State Flag */ | |
1897 | ||
1898 | NpState = NPCLEAR; | |
1899 | ||
1900 | if(NpDebug & DEBENTRY) | |
1901 | printf("NpReset...\n"); | |
1902 | ||
1903 | return(error); | |
1904 | } | |
1905 | ||
1906 | /* | |
1907 | * General purpose timeout function which sets the flag passed to it | |
1908 | * as argument. | |
1909 | */ | |
1910 | ||
1911 | NpTimer(flagp) | |
1912 | int *flagp; | |
1913 | { | |
1914 | *flagp = NPSET; | |
1915 | } | |
1916 | ||
1917 | NpStats() | |
1918 | { | |
1919 | if(NpDebug & DEBENTRY) | |
1920 | printf("npstats\n"); | |
1921 | return(0); | |
1922 | } | |
1923 | ||
1924 | /* | |
1925 | * NpCloseConn is called to issue a close connection command to the I-Board. | |
1926 | */ | |
1927 | ||
1928 | NpCloseConn(mp,protocol) | |
1929 | struct npmaster *mp; | |
1930 | unsign16 protocol; | |
1931 | { | |
1932 | ||
1933 | register struct npreq *rp; | |
1934 | register struct CQE *ep; | |
1935 | int pri; | |
1936 | ||
1937 | if(NpDebug & DEBENTRY) | |
1938 | printf("NpCloseConn\n"); | |
1939 | ||
1940 | /* | |
1941 | * Don't issue the Close Connection command if the Board | |
1942 | * isn't up. | |
1943 | */ | |
1944 | ||
1945 | if(!((mp->shmemp->statblock.sb_dpm) & PROTOMASK(protocol))) { | |
1946 | return; | |
1947 | } | |
1948 | ||
1949 | /* Get a Request structure */ | |
1950 | ||
1951 | while((rp = NpGetReq(mp->reqtab)) == NULL) { | |
1952 | mp->reqtab->flags |= WANTREQ; | |
1953 | sleep((caddr_t)(mp->reqtab),PZERO -1); | |
1954 | } | |
1955 | ||
1956 | rp->intr = (int (*)())0; /* Do not call interrupt routine */ | |
0399a117 KS |
1957 | rp->mapbase = 0; /* Clear mapping information */ |
1958 | ||
1959 | ep = rp->element; /* Handy pointer */ | |
1960 | ||
1961 | /* Fill in CQE */ | |
1962 | ||
1963 | ep->cqe_wind = 0; /* Entire buffer mapped */ | |
1964 | ep->cqe_nbuf = 1; /* Must be 1, no buffer chaining */ | |
1965 | ep->cqe_char = 0; /* Set to 0 for now */ | |
1966 | ||
1967 | ep->cqe_func = NPSTOP; /* OS_STP to I-Board */ | |
1968 | ||
1969 | ep->cqe_prot = protocol; /* Protocol of this connection */ | |
1970 | ep->cqe_lenrpb = 0; /* Parameter block length */ | |
1971 | ||
1972 | ep->cqe_ust0 = ep->cqe_ust1 = NPCLEAR; /* Clear status flags */ | |
1973 | ||
1974 | ep->cqe_famid = (unsign32)u.u_procp->p_pid; /* Process ID */ | |
1975 | ||
1976 | NpAddReq(mp->reqtab,rp); /* Queue onto active list */ | |
1977 | ||
1d5affa5 | 1978 | pri = spl5(); /* Mask our interrupts */ |
0399a117 KS |
1979 | |
1980 | NpAddCQE(ep,&mp->shmemp->devcq,mp); /* Add CQE to device's queue */ | |
1981 | ||
1982 | /* Wait for command to complete */ | |
1983 | ||
1984 | while(!(rp->flags & REQDONE)) | |
1985 | sleep((caddr_t)rp,PZERO - 1); | |
1986 | ||
1987 | splx(pri); | |
1988 | ||
1989 | NpRemReq(rp); /* Remove request from active list */ | |
1990 | ||
1991 | NpFreeReq(mp->reqtab,rp); /* Deallocate request structure */ | |
1992 | ||
1993 | if(NpDebug & DEBENTRY) | |
1994 | printf("NpCloseConn...\n"); | |
1995 | ||
1996 | } | |
1997 | ||
1998 | /* | |
1999 | * This function allows the protocol to be changed for a given connection. | |
2000 | * It returns 0 for success, error code otherwise. | |
2001 | */ | |
2002 | ||
2003 | NpProtChange(protocol,unit) | |
2004 | register unsign16 protocol; | |
2005 | register int unit; | |
2006 | { | |
2007 | ||
2008 | register struct npmaster *mp; | |
2009 | ||
2010 | /* Privileged users only for Maintenance Protocol */ | |
2011 | ||
2012 | if((protocol == NPMAINT) && (u.u_uid != 0)) | |
2013 | return(EPERM); | |
2014 | ||
2015 | if(NpDebug & DEBMAINT) | |
2016 | printf("NpProtChange = %x\n",protocol); | |
2017 | ||
2018 | if(protocol != NPMAINT) { | |
2019 | ||
2020 | /* Make sure the I-Board supports the protocol */ | |
2021 | ||
2022 | mp = &npmasters[unit]; | |
2023 | ||
2024 | if(!((mp->shmemp->statblock.sb_dpm) & PROTOMASK(protocol))) | |
2025 | return(ENXIO); | |
2026 | } | |
2027 | ||
2028 | return(0); | |
2029 | } | |
2030 | ||
2031 | /* | |
2032 | * This function allows for the changing of the unit for a given connection. | |
2033 | */ | |
2034 | ||
2035 | struct npmaster * | |
2036 | NpBoardChange(protocol,unit) | |
2037 | register unsign16 protocol; | |
2038 | register int unit; /* Unit number */ | |
2039 | { | |
2040 | register struct npmaster *mp; | |
2041 | ||
2042 | ||
2043 | if(unit > NNP) | |
2044 | return((struct npmaster *)0); | |
2045 | ||
2046 | if(protocol != NPMAINT) { | |
2047 | ||
2048 | /* | |
2049 | * Loop through the master structures finding a board which | |
2050 | * supports the requested protocol. | |
2051 | */ | |
2052 | ||
2053 | for(mp = npmasters; mp ; mp = mp->next) { | |
2054 | ||
2055 | if(mp->flags & BADBOARD) | |
2056 | continue; | |
2057 | ||
2058 | if(((mp->shmemp->statblock.sb_dpm) & PROTOMASK(protocol))) | |
2059 | return(mp); | |
2060 | } | |
2061 | return((struct npmaster *)0); | |
2062 | } | |
2063 | return(&npmasters[unit]); | |
2064 | } | |
2065 | ||
2066 | /* | |
2067 | * NpMapMem - maps the user's memory updating the fields in the npreq | |
2068 | * structure and returning the mapped address in rp->buffaddr. | |
2069 | */ | |
2070 | NpMapMem(mp,rp,addr,count) | |
2071 | register struct npmaster *mp; | |
2072 | register struct npreq *rp; | |
2073 | caddr_t addr; | |
2074 | int count; | |
2075 | { | |
2076 | ||
2077 | if(NpDebug & DEBENTRY) | |
2078 | printf("NpMapMem\n"); | |
2079 | if(NpDebug & DEBIO) | |
2080 | printf("mp %x rp %x addr %x count %x\n",mp,rp,addr,count); | |
2081 | ||
2082 | rp->virtmem = addr; | |
2083 | rp->bytecnt = count; | |
2084 | ||
2085 | rp->buf.b_un.b_addr = addr; | |
2086 | rp->buf.b_flags = B_PHYS | B_BUSY; | |
2087 | rp->buf.b_bcount = count; | |
2088 | rp->buf.b_proc = rp->procp; | |
2089 | ||
2090 | rp->procp->p_flag |= SPHYSIO; | |
ef9a9a2c MK |
2091 | if(NpDebug & DEBENTRY) |
2092 | printf("vslock\n"); | |
0399a117 | 2093 | vslock(addr,count); |
ef9a9a2c MK |
2094 | if(NpDebug & DEBENTRY) |
2095 | printf("vslock...\n"); | |
0399a117 KS |
2096 | |
2097 | rp->mapbase = ubasetup(mp->devp->ui_ubanum,&rp->buf,0); | |
2098 | ||
2099 | rp->bufaddr = (caddr_t)(rp->mapbase & UBADDRMASK); | |
2100 | ||
2101 | if(NpDebug & DEBENTRY) | |
2102 | printf("NpMapMem...\n"); | |
2103 | } | |
2104 | ||
2105 | /* | |
2106 | * Unmap the user's memory and free up mapping registers | |
2107 | */ | |
2108 | ||
2109 | NpUnMapMem(mp,rp) | |
2110 | struct npmaster *mp; | |
2111 | struct npreq *rp; | |
2112 | { | |
2113 | if(NpDebug & DEBENTRY) | |
2114 | printf("NpUnMapMem\n"); | |
2115 | ||
2116 | ubarelse(mp->devp->ui_ubanum,&rp->mapbase); | |
2117 | rp->mapbase = 0; | |
2118 | vsunlock(rp->virtmem,rp->bytecnt,B_READ); | |
2119 | rp->procp->p_flag &= ~SPHYSIO; | |
2120 | ||
2121 | if(NpDebug & DEBENTRY) | |
2122 | printf("NpUnMapMem...\n"); | |
2123 | } | |
2124 | ||
2125 | npprobe(reg, ui) | |
2126 | caddr_t reg; | |
2127 | struct uba_device *ui; | |
2128 | { | |
2129 | register int br,cvec; | |
2130 | u_short csraddr; | |
2131 | int i; | |
2132 | ||
2133 | #ifdef lint | |
2134 | br = 0; cvec = br; br = cvec; | |
2135 | #endif | |
2136 | ||
2137 | if(NpDebug & DEBINIT) | |
2138 | printf("In npprobe, regaddr is %x!\n",reg); | |
2139 | ||
2140 | cvec = (uba_hd[numuba].uh_lastiv -= 4); | |
2141 | ||
ef9a9a2c | 2142 | #ifdef OLDBSD |
0399a117 KS |
2143 | /* Find unit number from npstd[] by matching the csr address */ |
2144 | ||
2145 | csraddr = (u_short)((int)reg & 0x0FFFF); | |
2146 | ||
2147 | for(i = 0; i < NNP; i++) { | |
2148 | ||
2149 | if(csraddr == npstd[i]) { | |
2150 | npvectors[i] = cvec; | |
2151 | break; | |
2152 | } | |
2153 | } | |
2154 | if(i == NNP) | |
2155 | printf("Couldn't find device in npstd[]!\n"); | |
ef9a9a2c | 2156 | |
0399a117 KS |
2157 | #else |
2158 | npvectors[ui->ui_unit] = cvec; | |
2159 | #endif | |
2160 | br = 0x15; | |
2161 | ||
2162 | if(NpDebug & DEBINIT) | |
2163 | printf("npprobe...\n"); | |
2164 | ||
2165 | return(sizeof(struct NPREG)); /* CSR Registers */ | |
2166 | ||
2167 | } | |
2168 | ||
2169 | npattach(ui) | |
2170 | register struct uba_device *ui; | |
2171 | { | |
2172 | ||
2173 | if(NpDebug & DEBINIT) | |
2174 | printf("In npattach, ui is %x.\n",ui); | |
2175 | ||
2176 | npinit(ui->ui_unit); | |
0399a117 KS |
2177 | if (IxAttach) |
2178 | (*IxAttach)(ui); | |
2179 | ||
2180 | if(NpDebug & DEBINIT) | |
2181 | printf("npattach...\n"); | |
2182 | } | |
2183 | ||
ef9a9a2c MK |
2184 | |
2185 | NpMem(mp, rp, uaddr) | |
2186 | struct npmaster *mp; | |
2187 | struct npreq *rp; | |
2188 | unsigned long uaddr; | |
2189 | { | |
2190 | struct np_mem mem; | |
2191 | register int error = 0; | |
2192 | ||
2193 | if(NpDebug & DEBENTRY) | |
2194 | printf("npmem\n"); | |
2195 | ||
2196 | if (error = copyin(uaddr, &mem, sizeof(mem))) | |
2197 | return (error); | |
2198 | ||
2199 | if (mem.mem_type == NP_SET) { | |
2200 | if (np_mapreq[mp->unit] != (struct npreq *)NPCLEAR) | |
2201 | error = EBUSY; | |
2202 | else { | |
2203 | error = NpMapMem(mp, rp, mem.mem_addr, mem.mem_count); | |
2204 | if (error != 0) { | |
2205 | np_mapreq[mp->unit] = rp; | |
2206 | mem.mem_addr = rp->bufaddr; | |
2207 | } | |
2208 | } | |
2209 | } else if (mem.mem_type == NP_USET) { | |
2210 | error = NpUnMapMem(mp, np_mapreq[mp->unit]); | |
2211 | NpFreeReq(mp->reqtab, rp); | |
2212 | NpFreeReq(mp->reqtab, np_mapreq[mp->unit]); | |
2213 | np_mapreq[mp->unit] = (struct npreq *)NPCLEAR; | |
2214 | } else | |
2215 | error = EIO; | |
2216 | ||
2217 | if (error != 0) | |
2218 | error = copyout(&mem, uaddr, sizeof(mem)); | |
2219 | ||
2220 | if(NpDebug & DEBENTRY) | |
2221 | printf("npmem...\n"); | |
2222 | return (error); | |
2223 | } | |
0399a117 | 2224 | #endif |