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5db86c85 MK |
1 | /* |
2 | * Copyright (c) 1988 Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms are permitted | |
616d42db KB |
6 | * provided that the above copyright notice and this paragraph are |
7 | * duplicated in all such forms and that any documentation, | |
8 | * advertising materials, and other materials related to such | |
9 | * distribution and use acknowledge that the software was developed | |
10 | * by the University of California, Berkeley. The name of the | |
11 | * University may not be used to endorse or promote products derived | |
12 | * from this software without specific prior written permission. | |
13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
5db86c85 | 16 | * |
0eeaf15c | 17 | * @(#)mp.c 7.5 (Berkeley) %G% |
5db86c85 | 18 | */ |
d55465de SL |
19 | |
20 | #include "mp.h" | |
21 | #if NMP > 0 | |
22 | /* | |
23 | * Multi Protocol Communications Controller (MPCC). | |
24 | * Asynchronous Terminal Protocol Support. | |
25 | */ | |
d55465de SL |
26 | #include "param.h" |
27 | #include "ioctl.h" | |
28 | #include "tty.h" | |
29 | #include "dir.h" | |
30 | #include "user.h" | |
31 | #include "map.h" | |
32 | #include "buf.h" | |
33 | #include "conf.h" | |
34 | #include "file.h" | |
35 | #include "uio.h" | |
36 | #include "errno.h" | |
37 | #include "syslog.h" | |
38 | #include "vmmac.h" | |
39 | #include "kernel.h" | |
40 | #include "clist.h" | |
41 | ||
5db86c85 MK |
42 | #include "../machine/pte.h" |
43 | #include "../machine/mtpr.h" | |
44 | ||
d55465de SL |
45 | #include "../tahoevba/vbavar.h" |
46 | #include "../tahoevba/mpreg.h" | |
47 | ||
48 | #define MPCHUNK 16 | |
49 | #define MPPORT(n) ((n) & 0xf) | |
50 | #define MPUNIT(n) ((n) >> 4) | |
51 | ||
52 | /* | |
53 | * Driver information for auto-configuration stuff. | |
54 | */ | |
55 | int mpprobe(), mpattach(), mpintr(); | |
56 | struct vba_device *mpinfo[NMP]; | |
57 | long mpstd[] = { 0 }; | |
58 | struct vba_driver mpdriver = | |
59 | { mpprobe, 0, mpattach, 0, mpstd, "mp", mpinfo }; | |
60 | ||
61 | int mpstart(); | |
62 | struct mpevent *mpparam(); | |
63 | struct mpevent *mp_getevent(); | |
64 | ||
65 | /* | |
66 | * The following structure is needed to deal with mpcc's convoluted | |
67 | * method for locating it's mblok structures (hold your stomach). | |
68 | * When an mpcc is reset at boot time it searches host memory | |
69 | * looking for a string that says ``ThIs Is MpCc''. The mpcc | |
70 | * then reads the structure to locate the pointer to it's mblok | |
71 | * structure (you can wretch now). | |
72 | */ | |
73 | struct mpbogus { | |
74 | char s[12]; /* `ThIs Is MpCc'' */ | |
75 | u_char status; | |
76 | u_char unused; | |
77 | u_short magic; | |
78 | struct mblok *mb; | |
79 | struct mblok *mbloks[NMP]; /* can support at most 16 mpcc's */ | |
80 | } mpbogus = { 'T','h','I','s',' ','I','s',' ','M','p','C','c' }; | |
81 | ||
82 | /* | |
83 | * Software state per unit. | |
84 | */ | |
85 | struct mpsoftc { | |
86 | u_int ms_ivec; /* interrupt vector */ | |
87 | u_int ms_softCAR; /* software carrier for async */ | |
88 | struct mblok *ms_mb; /* mpcc status area */ | |
89 | struct vb_buf ms_buf; /* vba resources for ms_mb */ | |
90 | struct hxmtl ms_hxl[MPMAXPORT];/* host transmit list */ | |
91 | struct asyncparam ms_async[MPMAXPORT][MPINSET];/* async structs */ | |
92 | char ms_cbuf[MPMAXPORT][MPOUTSET][CBSIZE];/* input character buffers */ | |
93 | } mp_softc[NMP]; | |
94 | ||
95 | struct tty mp_tty[NMP*MPCHUNK]; | |
96 | #ifndef lint | |
97 | int nmp = NMP*MPCHUNK; | |
98 | #endif | |
99 | ||
100 | int ttrstrt(); | |
101 | ||
102 | mpprobe(reg, vi) | |
103 | caddr_t reg; | |
104 | struct vba_device *vi; | |
105 | { | |
106 | register int br, cvec; | |
107 | register struct mpsoftc *ms; | |
108 | ||
109 | #ifdef lint | |
110 | br = 0; cvec = br; br = cvec; | |
111 | mpintr(0); | |
5db86c85 | 112 | mpdlintr(0); |
d55465de SL |
113 | #endif |
114 | if (badaddr(reg, 2)) | |
115 | return (0); | |
116 | ms = &mp_softc[vi->ui_unit]; | |
117 | /* | |
118 | * Allocate page tables and mblok | |
119 | * structure (mblok in non-cached memory). | |
120 | */ | |
121 | if (vbainit(&ms->ms_buf, sizeof (struct mblok), VB_32BIT) == 0) { | |
122 | printf("mp%d: vbainit failed\n", vi->ui_unit); | |
123 | return (0); | |
124 | } | |
125 | ms->ms_mb = (struct mblok *)ms->ms_buf.vb_rawbuf; | |
126 | ms->ms_ivec = MPINTRBASE + 2*vi->ui_unit; /* XXX */ | |
127 | br = 0x14, cvec = ms->ms_ivec; /* XXX */ | |
7c707d99 | 128 | return (sizeof (*reg)); |
d55465de SL |
129 | } |
130 | ||
131 | mpattach(vi) | |
132 | register struct vba_device *vi; | |
133 | { | |
134 | register struct mpsoftc *ms = &mp_softc[vi->ui_unit]; | |
135 | ||
136 | ms->ms_softCAR = vi->ui_flags; | |
137 | /* | |
138 | * Setup pointer to mblok, initialize bogus | |
139 | * status block used by mpcc to locate the pointer | |
140 | * and then poke the mpcc to get it to search host | |
141 | * memory to find mblok pointer. | |
142 | */ | |
143 | mpbogus.mbloks[vi->ui_unit] = (struct mblok *)ms->ms_buf.vb_physbuf; | |
144 | *(short *)vi->ui_addr = 0x100; /* magic */ | |
145 | } | |
146 | ||
147 | /* | |
148 | * Open an mpcc port. | |
149 | */ | |
5db86c85 | 150 | /* ARGSUSED */ |
d55465de SL |
151 | mpopen(dev, mode) |
152 | dev_t dev; | |
153 | { | |
154 | register struct tty *tp; | |
155 | register struct mpsoftc *ms; | |
156 | int error, s, port, unit, mpu; | |
157 | struct vba_device *vi; | |
158 | struct mpport *mp; | |
159 | struct mpevent *ev; | |
160 | ||
161 | unit = minor(dev); | |
162 | mpu = MPUNIT(unit); | |
163 | if (mpu >= NMP || (vi = mpinfo[mpu]) == 0 || vi->ui_alive == 0) | |
164 | return (ENXIO); | |
165 | tp = &mp_tty[unit]; | |
166 | if (tp->t_state & TS_XCLUDE && u.u_uid != 0) | |
167 | return (EBUSY); | |
168 | ms = &mp_softc[mpu]; | |
169 | port = MPPORT(unit); | |
170 | if (ms->ms_mb->mb_proto[port] != MPPROTO_ASYNC || | |
171 | ms->ms_mb->mb_status != MP_OPOPEN) | |
172 | return (ENXIO); | |
173 | mp = &ms->ms_mb->mb_port[port]; /* host mpcc struct */ | |
174 | s = spl8(); | |
175 | while (mp->mp_flags & MP_PROGRESS) | |
176 | sleep((caddr_t)&tp->t_canq, TTIPRI); | |
177 | while (tp->t_state & TS_WOPEN) | |
178 | sleep((caddr_t)&tp->t_canq, TTIPRI); | |
d55465de SL |
179 | tp->t_state |= TS_WOPEN; |
180 | tp->t_addr = (caddr_t)ms; | |
181 | tp->t_oproc = mpstart; | |
182 | tp->t_dev = dev; | |
0eeaf15c KB |
183 | if ((tp->t_state & TS_ISOPEN) == 0) { |
184 | ttychars(tp); | |
185 | if (tp->t_ispeed == 0) { | |
186 | tp->t_ispeed = B9600; | |
187 | tp->t_ospeed = B9600; | |
188 | tp->t_flags = ODDP|EVENP|ECHO; | |
189 | } | |
190 | /* | |
191 | * Initialize port state: init MPCC interface | |
192 | * structures for port and setup modem control. | |
193 | */ | |
194 | mp->mp_proto = MPPROTO_ASYNC; /* XXX */ | |
195 | error = mpportinit(ms, mp, port); | |
196 | if (error) | |
197 | goto bad; | |
198 | ev = mpparam(unit); | |
199 | if (ev == 0) { | |
200 | error = ENOBUFS; | |
201 | goto bad; | |
202 | } | |
203 | mpcmd(ev, EVCMD_OPEN, 0, ms->ms_mb, port); | |
d55465de | 204 | } |
d55465de SL |
205 | while ((tp->t_state & TS_CARR_ON) == 0) |
206 | sleep((caddr_t)&tp->t_rawq, TTIPRI); | |
207 | error = (*linesw[tp->t_line].l_open)(dev,tp); | |
208 | done: | |
209 | splx(s); | |
210 | /* wakeup anyone waiting for open to complete */ | |
211 | wakeup((caddr_t)&tp->t_canq); | |
212 | ||
213 | return (error); | |
214 | bad: | |
215 | tp->t_state &= ~TS_WOPEN; | |
216 | goto done; | |
217 | } | |
218 | ||
219 | /* | |
220 | * Close an mpcc port. | |
221 | */ | |
5db86c85 MK |
222 | /* ARGSUSED */ |
223 | mpclose(dev, flag) | |
d55465de SL |
224 | dev_t dev; |
225 | { | |
226 | register struct tty *tp; | |
227 | register struct mpport *mp; | |
228 | register struct mpevent *ev; | |
229 | int s, port, unit, error; | |
230 | struct mblok *mb; | |
231 | ||
232 | unit = minor(dev); | |
233 | tp = &mp_tty[unit]; | |
234 | port = MPPORT(unit); | |
235 | mb = mp_softc[MPUNIT(unit)].ms_mb; | |
236 | mp = &mb->mb_port[port]; | |
237 | s = spl8(); | |
238 | if (mp->mp_flags & MP_PROGRESS) { /* close in progress */ | |
239 | if (mp->mp_flags & MP_REMBSY) { | |
240 | mp->mp_flags &= ~MP_REMBSY; | |
241 | splx(s); | |
242 | return (0); | |
243 | } | |
244 | while (mp->mp_flags & MP_PROGRESS) | |
245 | sleep((caddr_t)&tp->t_canq,TTIPRI); | |
246 | } | |
247 | error = 0; | |
248 | mp->mp_flags |= MP_PROGRESS; | |
249 | (*linesw[tp->t_line].l_close)(tp); | |
d55465de SL |
250 | ev = mp_getevent(mp, unit); |
251 | if (ev == 0) { | |
954f71cc KB |
252 | error = ENOBUFS; |
253 | mp->mp_flags &= ~MP_PROGRESS; | |
254 | goto out; | |
d55465de | 255 | } |
954f71cc KB |
256 | if (tp->t_state & TS_HUPCLS || (tp->t_state & TS_ISOPEN) == 0) |
257 | mpmodem(unit, MMOD_OFF); | |
258 | else | |
259 | mpmodem(unit, MMOD_ON); | |
d55465de | 260 | mpcmd(ev, EVCMD_CLOSE, 0, mb, port); |
954f71cc | 261 | ttyclose(tp); |
d55465de SL |
262 | out: |
263 | if (mp->mp_flags & MP_REMBSY) | |
264 | mpclean(mb, port); | |
265 | splx(s); | |
266 | return (error); | |
267 | } | |
268 | ||
269 | /* | |
270 | * Read from an mpcc port. | |
271 | */ | |
272 | mpread(dev, uio) | |
273 | dev_t dev; | |
274 | struct uio *uio; | |
275 | { | |
276 | struct tty *tp; | |
277 | ||
278 | tp = &mp_tty[minor(dev)]; | |
279 | return ((*linesw[tp->t_line].l_read)(tp, uio)); | |
280 | } | |
281 | ||
282 | /* | |
283 | * Write to an mpcc port. | |
284 | */ | |
285 | mpwrite(dev, uio) | |
286 | dev_t dev; | |
287 | struct uio *uio; | |
288 | { | |
289 | struct tty *tp; | |
290 | ||
291 | tp = &mp_tty[minor(dev)]; | |
292 | return ((*linesw[tp->t_line].l_write)(tp, uio)); | |
293 | } | |
294 | ||
295 | /* | |
296 | * Ioctl for a mpcc port | |
297 | */ | |
298 | mpioctl(dev, cmd, data, flag) | |
299 | dev_t dev; | |
300 | caddr_t data; | |
301 | { | |
302 | register struct tty *tp; | |
303 | register struct mpsoftc *ms; | |
304 | register struct mpevent *ev; | |
305 | register struct mpport *mp; | |
306 | int s, port, error, unit; | |
307 | struct mblok *mb; | |
308 | ||
309 | unit = minor(dev); | |
310 | tp = &mp_tty[unit]; | |
311 | ms = &mp_softc[MPUNIT(unit)]; | |
312 | mb = ms->ms_mb; | |
313 | error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag); | |
314 | if (error >= 0) | |
315 | return (error); | |
316 | error = ttioctl(tp, cmd, data, flag); | |
317 | if (error >= 0) { | |
318 | if (cmd == TIOCSETP || cmd == TIOCSETN || cmd == TIOCLBIS || | |
b532c831 | 319 | cmd == TIOCLBIC || cmd == TIOCLSET || cmd == TIOCSETC) { |
d55465de SL |
320 | ev = mpparam(unit); |
321 | if (ev == 0) | |
322 | error = ENOBUFS; | |
323 | else | |
324 | mpcmd(ev, EVCMD_IOCTL, A_CHGALL, mb, | |
325 | MPPORT(unit)); | |
326 | } | |
327 | return (error); | |
328 | } | |
329 | switch (cmd) { | |
330 | case TIOCSBRK: /* send break */ | |
331 | case TIOCCBRK: /* clear break */ | |
332 | port = MPPORT(unit); | |
333 | mp = &mb->mb_port[port]; | |
334 | s = spl8(); | |
335 | ev = mp_getevent(mp, unit); | |
336 | if (ev) | |
337 | mpcmd(ev, EVCMD_IOCTL, | |
338 | (cmd == TIOCSBRK ? A_BRKON : A_BRKOFF), | |
339 | mb, port); | |
340 | else | |
341 | error = ENOBUFS; | |
342 | splx(s); | |
343 | break; | |
344 | case TIOCSDTR: /* set dtr control line */ | |
345 | break; | |
346 | case TIOCCDTR: /* clear dtr control line */ | |
347 | break; | |
348 | default: | |
349 | error = ENOTTY; | |
350 | break; | |
351 | } | |
352 | return (error); | |
353 | } | |
354 | ||
355 | struct mpevent * | |
356 | mpparam(unit) | |
357 | int unit; | |
358 | { | |
359 | register struct mpevent *ev; | |
360 | register struct mpport *mp; | |
361 | register struct tty *tp; | |
362 | struct mblok *mb; | |
363 | struct mpsoftc *ms; | |
364 | register struct asyncparam *asp; | |
365 | int port; | |
366 | ||
367 | ms = &mp_softc[MPUNIT(unit)]; | |
368 | mb = ms->ms_mb; | |
369 | port = MPPORT(unit); | |
370 | mp = &mb->mb_port[port]; | |
371 | ev = mp_getevent(mp, unit); /* XXX */ | |
372 | if (ev == 0) | |
373 | return (ev); | |
374 | tp = &mp_tty[unit]; | |
375 | /* YUCK */ | |
376 | asp = &ms->ms_async[port][mp->mp_on?mp->mp_on-1:MPINSET-1]; | |
b532c831 KB |
377 | asp->ap_xon = (u_char)tp->t_startc; |
378 | asp->ap_xoff = (u_char)tp->t_stopc; | |
379 | if ((tp->t_flags & RAW) || (tp->t_stopc == -1) || (tp->t_startc == -1)) | |
380 | asp->ap_xena = MPA_DIS; | |
381 | else | |
382 | asp->ap_xena = MPA_ENA; | |
2281df84 | 383 | asp->ap_xany = ((tp->t_flags & DECCTQ) ? MPA_DIS : MPA_ENA); |
d55465de SL |
384 | #ifdef notnow |
385 | if (tp->t_flags & (RAW|LITOUT|PASS8)) { | |
386 | #endif | |
387 | asp->ap_data = MPCHAR_8; | |
388 | asp->ap_parity = MPPAR_NONE; | |
389 | #ifdef notnow | |
390 | } else { | |
391 | asp->ap_data = MPCHAR_7; | |
392 | if ((tp->t_flags & (EVENP|ODDP)) == ODDP) | |
393 | asp->ap_parity = MPPAR_ODD; | |
394 | else | |
395 | asp->ap_parity = MPPAR_EVEN; | |
396 | } | |
397 | #endif | |
398 | if (tp->t_ospeed == B110) | |
399 | asp->ap_stop = MPSTOP_2; | |
400 | else | |
401 | asp->ap_stop = MPSTOP_1; | |
402 | if (tp->t_ospeed == EXTA || tp->t_ospeed == EXTB) | |
403 | asp->ap_baud = M19200; | |
404 | else | |
405 | asp->ap_baud = tp->t_ospeed; | |
406 | asp->ap_loop = MPA_DIS; /* disable loopback */ | |
407 | asp->ap_rtimer = A_RCVTIM; /* default receive timer */ | |
408 | if (ms->ms_softCAR & (1<<port)) | |
409 | setm(&asp->ap_modem, A_DTR, ASSERT); | |
410 | else | |
411 | setm(&asp->ap_modem, A_DTR, AUTO); | |
412 | seti(&asp->ap_intena, A_DCD); | |
413 | return (ev); | |
414 | } | |
415 | ||
416 | mpstart(tp) | |
417 | register struct tty *tp; | |
418 | { | |
419 | register struct mpevent *ev; | |
420 | register struct mpport *mp; | |
421 | struct mblok *mb; | |
422 | struct mpsoftc *ms; | |
423 | int port, unit, xcnt, n, s, i; | |
424 | struct hxmtl *hxp; | |
425 | struct clist outq; | |
426 | ||
427 | s = spl8(); | |
428 | unit = minor(tp->t_dev); | |
429 | ms = &mp_softc[MPUNIT(unit)]; | |
430 | mb = ms->ms_mb; | |
431 | port = MPPORT(unit); | |
432 | mp = &mb->mb_port[port]; | |
433 | hxp = &ms->ms_hxl[port]; | |
434 | xcnt = 0; | |
435 | outq = tp->t_outq; | |
436 | for (i = 0; i < MPXMIT; i++) { | |
437 | if (tp->t_state & (TS_TIMEOUT|TS_BUSY|TS_TTSTOP)) | |
438 | break; | |
439 | if (outq.c_cc <= TTLOWAT(tp)) { | |
440 | if (tp->t_state & TS_ASLEEP) { | |
441 | tp->t_state &= ~TS_ASLEEP; | |
442 | wakeup((caddr_t)&tp->t_outq); | |
443 | } | |
444 | if (tp->t_wsel) { | |
445 | selwakeup(tp->t_wsel, tp->t_state & TS_WCOLL); | |
446 | tp->t_wsel = 0; | |
447 | tp->t_state &= ~TS_WCOLL; | |
448 | } | |
449 | } | |
450 | if (outq.c_cc == 0) | |
451 | break; | |
452 | /* | |
453 | * If we're not currently busy outputting, | |
454 | * and there is data to be output, set up | |
455 | * port transmit structure to send to mpcc. | |
456 | */ | |
457 | if (tp->t_flags & (RAW|LITOUT)) | |
458 | n = ndqb(&outq, 0); | |
459 | else { | |
460 | n = ndqb(&outq, 0200); | |
461 | if (n == 0) { | |
462 | n = getc(&outq); | |
463 | timeout(ttrstrt, (caddr_t)tp, (n&0177)+6); | |
464 | tp->t_state |= TS_TIMEOUT; | |
465 | break; | |
466 | } | |
467 | } | |
5db86c85 | 468 | hxp->dblock[i] = (caddr_t)kvtophys(outq.c_cf); |
d55465de SL |
469 | hxp->size[i] = n; |
470 | xcnt++; /* count of xmts to send */ | |
471 | ndadvance(&outq, n); | |
472 | } | |
473 | /* | |
474 | * If data to send, poke mpcc. | |
475 | */ | |
476 | if (xcnt) { | |
477 | ev = mp_getevent(mp, unit); | |
478 | if (ev == 0) { | |
479 | tp->t_state &= ~(TS_BUSY|TS_TIMEOUT); | |
480 | } else { | |
481 | tp->t_state |= TS_BUSY; | |
482 | ev->ev_count = xcnt; | |
483 | mpcmd(ev, EVCMD_WRITE, 0, mb, MPPORT(unit)); | |
484 | } | |
485 | } | |
486 | splx(s); | |
487 | } | |
488 | ||
489 | /* | |
490 | * Advance cc bytes from q but don't free memory. | |
491 | */ | |
492 | ndadvance(q, cc) | |
493 | register struct clist *q; | |
494 | register cc; | |
495 | { | |
496 | register struct cblock *bp; | |
497 | char *end; | |
498 | int rem, s; | |
499 | ||
500 | s = spltty(); | |
501 | if (q->c_cc <= 0) | |
502 | goto out; | |
503 | while (cc>0 && q->c_cc) { | |
504 | bp = (struct cblock *)((int)q->c_cf & ~CROUND); | |
505 | if ((int)bp == (((int)q->c_cl-1) & ~CROUND)) { | |
506 | end = q->c_cl; | |
507 | } else { | |
508 | end = (char *)((int)bp + sizeof (struct cblock)); | |
509 | } | |
510 | rem = end - q->c_cf; | |
511 | if (cc >= rem) { | |
512 | cc -= rem; | |
513 | q->c_cc -= rem; | |
514 | q->c_cf = bp->c_next->c_info; | |
515 | } else { | |
516 | q->c_cc -= cc; | |
517 | q->c_cf += cc; | |
518 | break; | |
519 | } | |
520 | } | |
521 | if (q->c_cc <= 0) { | |
522 | q->c_cf = q->c_cl = NULL; | |
523 | q->c_cc = 0; | |
524 | } | |
525 | out: | |
526 | splx(s); | |
527 | } | |
528 | ||
529 | /* | |
530 | * Stop output on a line, e.g. for ^S/^Q or output flush. | |
531 | */ | |
5db86c85 | 532 | /* ARGSUSED */ |
d55465de SL |
533 | mpstop(tp, rw) |
534 | register struct tty *tp; | |
535 | int rw; | |
536 | { | |
5db86c85 | 537 | int s; |
d55465de SL |
538 | |
539 | s = spl8(); | |
540 | /* XXX: DISABLE TRANSMITTER */ | |
541 | if (tp->t_state & TS_BUSY) { | |
542 | if ((tp->t_state & TS_TTSTOP) == 0) | |
543 | tp->t_state |= TS_FLUSH; | |
544 | } | |
545 | splx(s); | |
546 | } | |
547 | ||
548 | /* | |
549 | * Initialize an async port's MPCC state. | |
550 | */ | |
551 | mpportinit(ms, mp, port) | |
552 | register struct mpsoftc *ms; | |
553 | register struct mpport *mp; | |
554 | int port; | |
555 | { | |
556 | register struct mpevent *ev; | |
557 | register int i; | |
558 | caddr_t ptr; | |
559 | ||
560 | mp->mp_on = mp->mp_off = 0; | |
561 | mp->mp_nextrcv = 0; | |
562 | mp->mp_flags = 0; | |
563 | ev = &mp->mp_recvq[0]; | |
564 | for (i = 0; ev < &mp->mp_recvq[MPINSET]; ev++, i++) { | |
565 | ev->ev_status = EVSTATUS_FREE; | |
566 | ev->ev_cmd = 0; | |
567 | ev->ev_opts = 0; | |
568 | ev->ev_error = 0; | |
569 | ev->ev_flags = 0; | |
570 | ev->ev_count = 0; | |
5db86c85 MK |
571 | ev->ev_un.hxl = (struct hxmtl *) kvtophys(&ms->ms_hxl[port]); |
572 | ev->ev_params = (caddr_t) kvtophys(&ms->ms_async[port][i]); | |
d55465de SL |
573 | } |
574 | ev = &mp->mp_sendq[0]; | |
575 | for (i = 0; ev < &mp->mp_sendq[MPOUTSET]; ev++, i++) { | |
576 | /* init so that L2 can't send any events */ | |
577 | /* to host until open has completed */ | |
578 | ev->ev_status = EVSTATUS_FREE; | |
579 | ev->ev_cmd = 0; | |
580 | ev->ev_error = 0; | |
581 | ev->ev_flags = 0; | |
582 | ev->ev_count = 0; | |
583 | ptr = (caddr_t) &ms->ms_cbuf[port][i][0]; | |
5db86c85 MK |
584 | ev->ev_un.rcvblk = (u_char *)kvtophys(ptr); |
585 | ev->ev_params = (caddr_t) kvtophys(ptr); | |
d55465de SL |
586 | } |
587 | return (0); | |
588 | } | |
589 | ||
590 | /* | |
591 | * Send an event to an mpcc. | |
592 | */ | |
593 | mpcmd(ev, cmd, flags, mb, port) | |
594 | register struct mpevent *ev; | |
595 | struct mblok *mb; | |
596 | { | |
597 | int s; | |
598 | ||
599 | s = spl8(); | |
600 | /* move host values to inbound entry */ | |
601 | ev->ev_cmd = cmd; | |
602 | ev->ev_opts = flags; | |
603 | /* show event ready for mpcc */ | |
604 | ev->ev_status = EVSTATUS_GO; | |
605 | mpintmpcc(mb, port); | |
606 | splx(s); | |
607 | } | |
608 | ||
609 | /* | |
610 | * Return the next available event entry for the indicated port. | |
611 | */ | |
612 | struct mpevent * | |
613 | mp_getevent(mp, unit) | |
614 | register struct mpport *mp; | |
615 | int unit; | |
616 | { | |
617 | register struct mpevent *ev; | |
618 | int i, s; | |
619 | ||
620 | s = spl8(); | |
621 | ev = &mp->mp_recvq[mp->mp_on]; | |
622 | if (ev->ev_status != EVSTATUS_FREE) | |
623 | goto bad; | |
624 | /* | |
625 | * If not a close request, verify one extra | |
626 | * event is available for closing the port. | |
627 | */ | |
5db86c85 | 628 | if ((mp->mp_flags & MP_PROGRESS) == 0) { |
d55465de SL |
629 | if ((i = mp->mp_on + 1) >= MPINSET) |
630 | i = 0; | |
631 | if (mp->mp_recvq[i].ev_status != EVSTATUS_FREE) | |
632 | goto bad; | |
633 | } | |
634 | /* init inbound fields marking this entry as busy */ | |
635 | ev->ev_error = 0; | |
636 | ev->ev_flags = 0; | |
637 | ev->ev_count = 0; | |
638 | ev->ev_status = EVSTATUS_BUSY; | |
639 | /* adjust pointer to next available inbound entry */ | |
640 | adjptr(mp->mp_on, MPINSET); | |
641 | splx(s); | |
642 | return (ev); | |
643 | bad: | |
644 | splx(s); | |
645 | log(LOG_ERR, "mp%d: port%d, out of events", MPUNIT(unit), MPPORT(unit)); | |
646 | return ((struct mpevent *)0); | |
647 | } | |
648 | ||
649 | mpmodem(unit, flag) | |
650 | int unit, flag; | |
651 | { | |
652 | struct mpsoftc *ms = &mp_softc[MPUNIT(unit)]; | |
653 | int port = MPPORT(unit); | |
654 | register struct mpport *mp; | |
d55465de SL |
655 | register struct asyncparam *asp; |
656 | ||
657 | mp = &ms->ms_mb->mb_port[port]; | |
d55465de SL |
658 | asp = &ms->ms_async[port][mp->mp_on?mp->mp_on-1:MPINSET-1]; |
659 | if (flag == MMOD_ON) { | |
660 | if (ms->ms_softCAR & (1 << port)) | |
661 | setm(&asp->ap_modem, A_DTR, ASSERT); | |
662 | else | |
663 | setm(&asp->ap_modem, A_DTR, AUTO); | |
664 | seti(&asp->ap_intena, A_DCD); | |
665 | } else { | |
666 | setm(&asp->ap_modem, 0, DROP); | |
667 | seti(&asp->ap_intena, 0); | |
668 | } | |
d55465de SL |
669 | } |
670 | ||
671 | /* | |
672 | * Set up the modem control structure according to mask. | |
673 | * Each set bit in the mask means assert the corresponding | |
674 | * modem control line, otherwise, it will be dropped. | |
675 | * RTS is special since it can either be asserted, dropped | |
676 | * or put in auto mode for auto modem control. | |
677 | */ | |
678 | static | |
679 | setm(mc, mask, rts) | |
680 | register struct mdmctl *mc; | |
681 | register int mask; | |
682 | { | |
683 | ||
684 | mc->mc_rngdsr = (mask & A_RNGDSR) ? ASSERT : DROP; | |
685 | mc->mc_rate = (mask & A_RATE) ? ASSERT : DROP; | |
686 | mc->mc_dcd = (mask & A_DCD) ? ASSERT : DROP; | |
687 | mc->mc_sectx = (mask & A_SECTX) ? ASSERT : DROP; | |
688 | mc->mc_cts = (mask & A_CTS) ? ASSERT : DROP; | |
689 | mc->mc_secrx = (mask & A_SECRX) ? ASSERT : DROP; | |
690 | mc->mc_dtr = (mask & A_DTR) ? ASSERT : DROP; | |
691 | mc->mc_rts = rts; | |
692 | } | |
693 | ||
694 | /* | |
695 | * Set up the status change enable field from mask. | |
696 | * When a signal is enabled in this structure and | |
697 | * and a change in state on a corresponding modem | |
698 | * control line occurs, a status change event will | |
699 | * be delivered to the host. | |
700 | */ | |
701 | static | |
702 | seti(mc, mask) | |
703 | register struct mdmctl *mc; | |
704 | register int mask; | |
705 | { | |
706 | ||
707 | mc->mc_rngdsr = (mask & A_RNGDSR) ? MDM_ON : MDM_OFF; | |
708 | mc->mc_rate = (mask & A_RATE) ? MDM_ON : MDM_OFF; | |
709 | mc->mc_dcd = (mask & A_DCD) ? MDM_ON : MDM_OFF; | |
710 | mc->mc_sectx = (mask & A_SECTX) ? MDM_ON : MDM_OFF; | |
711 | mc->mc_cts = (mask & A_CTS) ? MDM_ON : MDM_OFF; | |
712 | mc->mc_secrx = (mask & A_SECRX) ? MDM_ON : MDM_OFF; | |
713 | mc->mc_dtr = (mask & A_DTR) ? MDM_ON : MDM_OFF; | |
714 | mc->mc_rts = (mask & A_RTS) ? MDM_ON : MDM_OFF; | |
715 | } | |
716 | ||
717 | mpcleanport(mb, port) | |
718 | struct mblok *mb; | |
719 | int port; | |
720 | { | |
721 | register struct mpport *mp; | |
722 | register struct tty *tp; | |
723 | ||
724 | mp = &mb->mb_port[port]; | |
725 | if (mp->mp_proto == MPPROTO_ASYNC) { | |
726 | mp->mp_flags = MP_REMBSY; | |
5db86c85 | 727 | /* signal loss of carrier and close */ |
d55465de | 728 | tp = &mp_tty[mb->mb_unit*MPCHUNK+port]; |
d55465de | 729 | ttyflush(tp, FREAD|FWRITE); |
5db86c85 MK |
730 | (void) (*linesw[tp->t_line].l_modem)(tp, 0); |
731 | (void) mpclose(tp->t_dev, 0); | |
d55465de SL |
732 | } |
733 | } | |
734 | ||
735 | mpclean(mb, port) | |
736 | register struct mblok *mb; | |
737 | int port; | |
738 | { | |
739 | register struct mpport *mp; | |
740 | register struct mpevent *ev; | |
741 | register int i; | |
5db86c85 | 742 | u_char list[2]; |
d55465de SL |
743 | int unit; |
744 | ||
745 | mp = &mb->mb_port[port]; | |
746 | unit = mb->mb_unit; | |
747 | for (i = mp->mp_off; i != mp->mp_on; i = (i+1 % MPINSET)) { | |
748 | ev = &mp->mp_recvq[i]; | |
749 | ev->ev_error = ENXIO; | |
750 | ev->ev_status = EVSTATUS_DONE; | |
751 | } | |
752 | list[0] = port, list[1] = MPPORT_EOL; | |
753 | mpxintr(unit, list); | |
754 | mprintr(unit, list); | |
755 | /* Clear async for port */ | |
756 | mp->mp_proto = MPPROTO_UNUSED; | |
757 | mp->mp_flags = 0; | |
758 | mp->mp_on = 0; | |
759 | mp->mp_off = 0; | |
760 | mp->mp_nextrcv = 0; | |
761 | ||
762 | mp_tty[unit*MPCHUNK + port].t_state = 0; | |
763 | for (ev = &mp->mp_sendq[0]; ev < &mp->mp_sendq[MPOUTSET]; ev++) { | |
764 | ev->ev_status = EVSTATUS_FREE; | |
765 | ev->ev_cmd = 0; | |
766 | ev->ev_error = 0; | |
767 | ev->ev_un.rcvblk = 0; | |
768 | ev->ev_params = 0; | |
769 | } | |
770 | for (ev = &mp->mp_recvq[0]; ev < &mp->mp_recvq[MPINSET]; ev++) { | |
771 | ev->ev_status = EVSTATUS_FREE; | |
772 | ev->ev_cmd = 0; | |
773 | ev->ev_error = 0; | |
774 | ev->ev_params = 0; | |
775 | } | |
776 | } | |
777 | ||
778 | /* | |
779 | * MPCC interrupt handler. | |
780 | */ | |
781 | mpintr(mpcc) | |
782 | int mpcc; | |
783 | { | |
784 | register struct mblok *mb; | |
785 | register struct his *his; | |
d55465de SL |
786 | |
787 | mb = mp_softc[mpcc].ms_mb; | |
788 | if (mb == 0) { | |
789 | printf("mp%d: stray interrupt\n", mpcc); | |
790 | return; | |
791 | } | |
792 | his = &mb->mb_hostint; | |
793 | his->semaphore &= ~MPSEMA_AVAILABLE; | |
794 | /* | |
795 | * Check for events to be processed. | |
796 | */ | |
797 | if (his->proto[MPPROTO_ASYNC].outbdone[0] != MPPORT_EOL) | |
798 | mprintr(mpcc, his->proto[MPPROTO_ASYNC].outbdone); | |
799 | if (his->proto[MPPROTO_ASYNC].inbdone[0] != MPPORT_EOL) | |
800 | mpxintr(mpcc, his->proto[MPPROTO_ASYNC].inbdone); | |
801 | if (mb->mb_harderr || mb->mb_softerr) | |
802 | mperror(mb, mpcc); | |
803 | his->semaphore |= MPSEMA_AVAILABLE; | |
804 | } | |
805 | ||
806 | /* | |
807 | * Handler for processing completion of transmitted events. | |
808 | */ | |
809 | mpxintr(unit, list) | |
5db86c85 | 810 | register u_char *list; |
d55465de SL |
811 | { |
812 | register struct mpport *mp; | |
813 | register struct mpevent *ev; | |
814 | register struct mblok *mb; | |
815 | register struct tty *tp; | |
816 | register struct asyncparam *ap; | |
817 | struct mpsoftc *ms; | |
818 | int port, i, j; | |
819 | ||
820 | ms = &mp_softc[unit]; | |
821 | mb = mp_softc[unit].ms_mb; | |
822 | for (j = 0; j < MPMAXPORT && ((port = *list++) != MPPORT_EOL); j++) { | |
823 | /* | |
824 | * Process each completed entry in the inbound queue. | |
825 | */ | |
826 | mp = &mb->mb_port[port]; | |
827 | tp = &mp_tty[unit*MPCHUNK + port]; | |
828 | #define nextevent(mp) &mp->mp_recvq[mp->mp_off] | |
829 | ev = nextevent(mp); | |
830 | for(; ev->ev_status & EVSTATUS_DONE; ev = nextevent(mp)) { | |
831 | /* YUCK */ | |
832 | ap = &ms->ms_async[port][mp->mp_off]; | |
5db86c85 | 833 | mppurge((caddr_t)ap, (int)sizeof (*ap)); |
d55465de SL |
834 | switch (ev->ev_cmd) { |
835 | case EVCMD_OPEN: | |
836 | /* | |
837 | * Open completion, start all reads and | |
838 | * assert modem status information. | |
839 | */ | |
840 | for (i = 0; i < MPOUTSET; i++) | |
841 | mp->mp_sendq[i].ev_status = EVSTATUS_GO; | |
842 | (*linesw[tp->t_line].l_modem) | |
843 | (tp, ap->ap_modem.mc_dcd == ASSERT); | |
844 | break; | |
845 | case EVCMD_CLOSE: | |
846 | /* | |
847 | * Close completion, flush all pending | |
848 | * transmissions, free resources, and | |
849 | * cleanup mpcc port state. | |
850 | */ | |
851 | for (i = 0; i < MPOUTSET; i++) { | |
852 | mp->mp_sendq[i].ev_status = | |
853 | EVSTATUS_FREE; | |
854 | mp->mp_sendq[i].ev_un.rcvblk = 0; | |
855 | mp->mp_sendq[i].ev_params = 0; | |
856 | } | |
857 | tp->t_state &= ~TS_CARR_ON; | |
858 | mp->mp_on = mp->mp_off = mp->mp_nextrcv = 0; | |
859 | mp->mp_flags &= ~MP_PROGRESS; | |
860 | mp->mp_proto = MPPROTO_UNUSED; | |
861 | wakeup((caddr_t)&tp->t_canq); /* ??? */ | |
862 | goto done; | |
863 | case EVCMD_IOCTL: | |
864 | /* | |
865 | * Nothing to do, just pitch. | |
866 | */ | |
867 | break; | |
868 | case EVCMD_WRITE: | |
869 | /* | |
870 | * Transmission completed, update tty | |
871 | * state and restart output. | |
872 | */ | |
873 | tp->t_state &= ~TS_BUSY; | |
874 | if (tp->t_state & TS_FLUSH) { | |
875 | tp->t_state &= ~TS_FLUSH; | |
876 | wakeup((caddr_t)&tp->t_state); | |
877 | } else { | |
5db86c85 | 878 | register int cc = 0, n; |
d55465de SL |
879 | struct hxmtl *hxp; |
880 | ||
881 | hxp = &ms->ms_hxl[port]; | |
5db86c85 MK |
882 | for(n = 0; n < ev->ev_count; n++) |
883 | cc += hxp->size[n]; | |
d55465de SL |
884 | ndflush(&tp->t_outq, cc); |
885 | } | |
886 | switch (ev->ev_error) { | |
887 | case A_SIZERR: /*# error in xmt data size */ | |
888 | mplog(unit, port, A_XSIZE, 0); | |
889 | break; | |
890 | case A_NXBERR: /*# no more xmt evt buffers */ | |
891 | mplog(unit, port, A_NOXBUF, 0); | |
892 | break; | |
893 | } | |
894 | mpstart(tp); | |
895 | break; | |
896 | default: | |
5db86c85 | 897 | mplog(unit, port, A_INVCMD, (int)ev->ev_cmd); |
d55465de SL |
898 | break; |
899 | } | |
900 | /* re-init all values in this entry */ | |
901 | ev->ev_cmd = 0; | |
902 | ev->ev_opts = 0; | |
903 | ev->ev_error = 0; | |
904 | ev->ev_flags = 0; | |
905 | ev->ev_count = 0; | |
906 | /* show this entry is available for use */ | |
907 | ev->ev_status = EVSTATUS_FREE; | |
908 | adjptr(mp->mp_off, MPINSET); | |
909 | #undef nextevent | |
910 | } | |
911 | done: | |
912 | ; | |
913 | } | |
914 | } | |
915 | ||
916 | /* | |
917 | * Handler for processing received events. | |
918 | */ | |
919 | mprintr(unit, list) | |
5db86c85 | 920 | u_char *list; |
d55465de SL |
921 | { |
922 | register struct tty *tp; | |
923 | register struct mpport *mp; | |
924 | register struct mpevent *ev; | |
925 | struct mblok *mb; | |
926 | register int cc; | |
927 | register char *cp; | |
928 | struct mpsoftc *ms; | |
929 | caddr_t ptr; | |
930 | char *rcverr; | |
931 | int port, i; | |
932 | ||
933 | ms = &mp_softc[unit]; | |
934 | mb = mp_softc[unit].ms_mb; | |
935 | for (i = 0; i < MPMAXPORT && (port = *list++) != MPPORT_EOL; i++) { | |
936 | tp = &mp_tty[unit*MPCHUNK + port]; | |
937 | mp = &mb->mb_port[port]; | |
938 | ev = &mp->mp_sendq[mp->mp_nextrcv]; | |
939 | while (ev->ev_status & EVSTATUS_DONE) { | |
940 | if (ev->ev_cmd != EVCMD_READ && | |
941 | ev->ev_cmd != EVCMD_STATUS) { | |
942 | mplog(unit, port, "unexpected command", | |
5db86c85 | 943 | (int)ev->ev_cmd); |
d55465de SL |
944 | goto next; |
945 | } | |
946 | if (ev->ev_cmd == EVCMD_STATUS) { | |
947 | /* | |
948 | * Status change, look for carrier changes. | |
949 | */ | |
950 | if (ev->ev_opts == DCDASRT || | |
951 | ev->ev_opts == DCDDROP) | |
952 | (*linesw[tp->t_line].l_modem) | |
953 | (tp, ev->ev_opts == DCDASRT); | |
954 | else | |
955 | mplog(unit, port, | |
956 | "unexpect status command", | |
5db86c85 | 957 | (int)ev->ev_opts); |
d55465de SL |
958 | goto next; |
959 | } | |
960 | /* | |
961 | * Process received data. | |
962 | */ | |
963 | if ((tp->t_state & (TS_ISOPEN|TS_WOPEN)) == 0) | |
964 | goto next; | |
965 | cc = ev->ev_count; | |
966 | if (cc == 0) | |
967 | goto next; | |
968 | /* YUCK */ | |
969 | cp = ms->ms_cbuf[port][mp->mp_nextrcv]; | |
970 | mppurge(cp, CBSIZE); | |
971 | while (cc-- > 0) { | |
972 | /* | |
973 | * A null character is inserted, potentially | |
974 | * when a break or framing error occurs. If | |
975 | * we're not in raw mode, substitute the | |
976 | * interrupt character. | |
977 | */ | |
978 | if (*cp == 0 && | |
979 | (ev->ev_error == BRKASRT || | |
980 | ev->ev_error == FRAMERR)) | |
981 | if ((tp->t_flags&RAW) == 0) | |
982 | *cp = tp->t_intrc; | |
983 | (*linesw[tp->t_line].l_rint)(*cp++, tp); | |
984 | } | |
985 | /* setup for next read */ | |
986 | ptr = (caddr_t)&mp_softc[unit].ms_cbuf[port][mp->mp_nextrcv][0]; | |
5db86c85 MK |
987 | ev->ev_un.rcvblk = (u_char *)kvtophys(ptr); |
988 | ev->ev_params = (caddr_t) kvtophys(ptr); | |
86b469ee KB |
989 | switch(ev->ev_error) { |
990 | case RCVDTA: /* Normal (good) rcv data */ | |
991 | /* do not report the following */ | |
992 | /* they are "normal" errors */ | |
d55465de | 993 | case FRAMERR: /* frame error */ |
86b469ee KB |
994 | case BRKASRT: /* Break condition */ |
995 | case PARERR: /* parity error */ | |
996 | rcverr = (char *)0; | |
d55465de SL |
997 | break; |
998 | case OVRNERR: /* Overrun error */ | |
999 | rcverr = "overrun error"; | |
1000 | break; | |
1001 | case OVFERR: /* Overflow error */ | |
1002 | rcverr = "overflow error"; | |
1003 | break; | |
1004 | default: | |
1005 | rcverr = "undefined rcv error"; | |
1006 | } | |
1007 | if (rcverr != (char *)0) | |
5db86c85 | 1008 | mplog(unit, port, rcverr, (int)ev->ev_error); |
d55465de SL |
1009 | next: |
1010 | ev->ev_cmd = 0; | |
1011 | ev->ev_opts = 0; | |
1012 | ev->ev_error = 0; | |
1013 | ev->ev_flags = 0; | |
1014 | ev->ev_status = EVSTATUS_GO; /* start next read */ | |
1015 | adjptr(mp->mp_nextrcv, MPOUTSET); | |
1016 | ev = &mp->mp_sendq[mp->mp_nextrcv]; | |
1017 | } | |
1018 | } | |
1019 | } | |
1020 | ||
1021 | /* | |
1022 | * Log an mpcc diagnostic. | |
1023 | */ | |
1024 | mplog(unit, port, cp, flags) | |
1025 | char *cp; | |
1026 | { | |
1027 | ||
1028 | if (flags) | |
1029 | log(LOG_ERR, "mp%d: port%d, %s (%d)\n", | |
1030 | unit, port, cp, flags); | |
1031 | else | |
1032 | log(LOG_ERR, "mp%d: port%d, %s\n", unit, port, cp); | |
1033 | } | |
1034 | ||
1035 | int MPHOSTINT = 1; | |
1036 | ||
1037 | mptimeint(mb) | |
1038 | register struct mblok *mb; | |
1039 | { | |
1040 | ||
1041 | mb->mb_mpintcnt = 0; | |
1042 | mb->mb_mpintclk = (caddr_t)0; | |
1043 | *(u_short *)mpinfo[mb->mb_unit]->ui_addr = 2; | |
1044 | } | |
1045 | ||
1046 | /* | |
1047 | * Interupt mpcc | |
1048 | */ | |
1049 | mpintmpcc(mb, port) | |
1050 | register struct mblok *mb; | |
d55465de SL |
1051 | { |
1052 | ||
1053 | mb->mb_intr[port] |= MPSEMA_WORK; | |
1054 | if (++mb->mb_mpintcnt == MPHOSTINT) { | |
1055 | mb->mb_mpintcnt = 0; | |
1056 | *(u_short *)mpinfo[mb->mb_unit]->ui_addr = 2; | |
1057 | if (mb->mb_mpintclk) { | |
5db86c85 | 1058 | untimeout(mptimeint, (caddr_t)mb); |
d55465de SL |
1059 | mb->mb_mpintclk = 0; |
1060 | } | |
1061 | } else { | |
1062 | if (mb->mb_mpintclk == 0) { | |
5db86c85 | 1063 | timeout(mptimeint, (caddr_t)mb, 4); |
d55465de SL |
1064 | mb->mb_mpintclk = (caddr_t)1; |
1065 | } | |
1066 | } | |
1067 | } | |
1068 | ||
1069 | static char *mpherrmsg[] = { | |
1070 | "", | |
1071 | "Bus error", /* MPBUSERR */ | |
1072 | "Address error", /* ADDRERR */ | |
1073 | "Undefined ecc interrupt", /* UNDECC */ | |
1074 | "Undefined interrupt", /* UNDINT */ | |
1075 | "Power failure occurred", /* PWRFL */ | |
1076 | "Stray transmit done interrupt", /* NOXENTRY */ | |
1077 | "Two fast timers on one port", /* TWOFTMRS */ | |
1078 | "Interrupt queue full", /* INTQFULL */ | |
1079 | "Interrupt queue ack error", /* INTQERR */ | |
1080 | "Uncorrectable dma parity error", /* CBPERR */ | |
1081 | "32 port ACAP failed power up", /* ACPDEAD */ | |
1082 | }; | |
1083 | #define NHERRS (sizeof (mpherrmsg) / sizeof (mpherrmsg[0])) | |
1084 | ||
1085 | mperror(mb, unit) | |
1086 | register struct mblok *mb; | |
1087 | int unit; | |
1088 | { | |
1089 | register char *cp; | |
1090 | register int i; | |
1091 | ||
1092 | if (mb->mb_softerr) { | |
1093 | switch (mb->mb_softerr) { | |
1094 | case DMAPERR: /* dma parity error */ | |
1095 | cp = "dma parity error"; | |
1096 | break; | |
1097 | case ECCERR: | |
1098 | cp = "local memory ecc error"; | |
1099 | break; | |
1100 | default: | |
1101 | cp = "unknown error"; | |
1102 | break; | |
1103 | } | |
1104 | log(LOG_ERR, "mp%d: soft error, %s", unit, cp); | |
1105 | mb->mb_softerr = 0; | |
1106 | } | |
1107 | if (mb->mb_harderr) { | |
1108 | if (mb->mb_harderr < NHERRS) | |
1109 | cp = mpherrmsg[mb->mb_harderr]; | |
1110 | else | |
1111 | cp = "unknown error"; | |
1112 | log(LOG_ERR, "mp%d: hard error, %s", unit, cp); | |
1113 | if (mb->mb_status == MP_OPOPEN) { | |
1114 | for (i = 0; i < MPMAXPORT; i++) { | |
1115 | mpcleanport(mb, i); | |
1116 | mb->mb_proto[i] = MPPROTO_UNUSED; | |
1117 | } | |
1118 | } | |
1119 | mb->mb_harderr = 0; | |
1120 | mb->mb_status = 0; | |
1121 | } | |
1122 | } | |
1123 | ||
1124 | mppurge(addr, cc) | |
1125 | register caddr_t addr; | |
1126 | register int cc; | |
1127 | { | |
1128 | ||
1129 | for (; cc >= 0; addr += NBPG, cc -= NBPG) | |
1130 | mtpr(P1DC, addr); | |
1131 | } | |
1132 | ||
1133 | /* | |
1134 | * MPCC Download Pseudo-device. | |
1135 | */ | |
1136 | char mpdlbuf[MPDLBUFSIZE]; | |
1137 | int mpdlbusy; /* interlock on download buffer */ | |
1138 | int mpdlerr; | |
1139 | ||
1140 | mpdlopen(dev) | |
1141 | dev_t dev; | |
1142 | { | |
1143 | int unit, mpu; | |
1144 | struct vba_device *vi; | |
1145 | ||
1146 | unit = minor(dev); | |
1147 | mpu = MPUNIT(unit); | |
1148 | if (mpu >= NMP || (vi = mpinfo[mpu]) == 0 || vi->ui_alive == 0) | |
1149 | return (ENODEV); | |
1150 | return (0); | |
1151 | } | |
1152 | ||
1153 | mpdlwrite(dev, uio) | |
1154 | dev_t dev; | |
1155 | struct uio *uio; | |
1156 | { | |
1157 | register struct mpsoftc *ms = &mp_softc[MPUNIT(minor(dev))]; | |
1158 | register struct mpdl *dl; | |
1159 | int error; | |
1160 | ||
1161 | if (ms->ms_mb == 0 || ms->ms_mb->mb_status != MP_DLOPEN) | |
1162 | return (EFAULT); | |
1163 | dl = &ms->ms_mb->mb_dl; | |
1164 | dl->mpdl_count = uio->uio_iov->iov_len; | |
5db86c85 MK |
1165 | dl->mpdl_data = (caddr_t) kvtophys(mpdlbuf); |
1166 | if (error = uiomove(mpdlbuf, (int)dl->mpdl_count, UIO_WRITE, uio)) | |
d55465de SL |
1167 | return (error); |
1168 | uio->uio_resid -= dl->mpdl_count; /* set up return from write */ | |
1169 | dl->mpdl_cmd = MPDLCMD_NORMAL; | |
1170 | error = mpdlwait(dl); | |
1171 | return (error); | |
1172 | } | |
1173 | ||
1174 | mpdlclose(dev) | |
1175 | dev_t dev; | |
1176 | { | |
1177 | register struct mblok *mb = mp_softc[MPUNIT(minor(dev))].ms_mb; | |
d55465de SL |
1178 | |
1179 | if (mb == 0 || mb->mb_status != MP_DLDONE) { | |
1180 | mpbogus.status = 0; | |
1181 | if (mpbogus.mb == mpbogus.mbloks[MPUNIT(minor(dev))]) | |
1182 | mpdlbusy--; | |
1183 | return (EEXIST); | |
1184 | } | |
1185 | mb->mb_status = MP_OPOPEN; | |
1186 | mpbogus.status = 0; | |
1187 | /* set to dead, for board handshake */ | |
1188 | mb->mb_hostint.imok = MPIMOK_DEAD; | |
1189 | return (0); | |
1190 | } | |
1191 | ||
1192 | int mpdltimeout(); | |
1193 | ||
5db86c85 | 1194 | /* ARGSUSED */ |
d55465de SL |
1195 | mpdlioctl(dev, cmd, data, flag) |
1196 | dev_t dev; | |
1197 | caddr_t data; | |
1198 | { | |
1199 | register struct mblok *mb; | |
1200 | register struct mpdl *dl; | |
5db86c85 | 1201 | int unit, error, s, i; |
d55465de SL |
1202 | |
1203 | mb = mp_softc[unit=MPUNIT(minor(dev))].ms_mb; | |
1204 | if (mb == 0) | |
1205 | return (EEXIST); | |
1206 | dl = &mb->mb_dl; | |
1207 | error = 0; | |
1208 | switch (cmd) { | |
1209 | case MPIOPORTMAP: | |
1210 | bcopy(data, (caddr_t)mb->mb_proto, sizeof (mb->mb_proto)); | |
1211 | break; | |
1212 | case MPIOHILO: | |
1213 | bcopy(data, (caddr_t)&mb->mb_hiport, 2*(sizeof(mb->mb_hiport))); | |
1214 | break; | |
1215 | case MPIOENDDL: | |
1216 | dl->mpdl_count = 0; | |
1217 | dl->mpdl_data = 0; | |
1218 | dl->mpdl_cmd = MPIOENDDL&IOCPARM_MASK; | |
1219 | error = mpdlwait(dl); | |
1220 | mpccinit(unit); | |
1221 | mb->mb_status = MP_DLDONE; | |
1222 | mpdlbusy--; | |
1223 | break; | |
1224 | case MPIOENDCODE: | |
1225 | dl->mpdl_count = 0; | |
1226 | dl->mpdl_data = 0; | |
1227 | dl->mpdl_cmd = MPIOENDCODE&IOCPARM_MASK; | |
1228 | error = mpdlwait(dl); | |
1229 | break; | |
1230 | case MPIOASYNCNF: | |
1231 | bcopy(data, mpdlbuf, sizeof (struct abdcf)); | |
5db86c85 | 1232 | dl->mpdl_data = (caddr_t) kvtophys(mpdlbuf); |
d55465de SL |
1233 | dl->mpdl_count = sizeof (struct abdcf); |
1234 | dl->mpdl_cmd = MPIOASYNCNF&IOCPARM_MASK; | |
1235 | error = mpdlwait(dl); | |
1236 | break; | |
1237 | case MPIOSTARTDL: | |
1238 | while (mpdlbusy) | |
1239 | sleep((caddr_t)&mpdlbusy, PZERO+1); | |
1240 | mpdlbusy++; | |
1241 | /* initialize the downloading interface */ | |
1242 | mpbogus.magic = MPMAGIC; | |
1243 | mpbogus.mb = mpbogus.mbloks[unit]; | |
1244 | mpbogus.status = 1; | |
1245 | dl->mpdl_status = EVSTATUS_FREE; | |
1246 | dl->mpdl_count = 0; | |
1247 | dl->mpdl_cmd = 0; | |
1248 | dl->mpdl_data = (char *) 0; | |
1249 | mpdlerr = 0; | |
1250 | mb->mb_magic = MPMAGIC; | |
1251 | mb->mb_ivec = mp_softc[unit].ms_ivec+1; /* download vector */ | |
1252 | mb->mb_status = MP_DLPEND; | |
1253 | mb->mb_diagswitch[0] = 'A'; | |
1254 | mb->mb_diagswitch[1] = 'P'; | |
1255 | s = spl8(); | |
1256 | *(u_short *)mpinfo[unit]->ui_addr = 2; | |
5db86c85 | 1257 | timeout(mpdltimeout, (caddr_t)mb, 30*hz); |
d55465de SL |
1258 | sleep((caddr_t)&mb->mb_status, PZERO+1); |
1259 | splx(s); | |
1260 | if (mb->mb_status == MP_DLOPEN) { | |
5db86c85 | 1261 | untimeout(mpdltimeout, (caddr_t)mb); |
d55465de SL |
1262 | } else if (mb->mb_status == MP_DLTIME) { |
1263 | mpbogus.status = 0; | |
1264 | error = ETIMEDOUT; | |
1265 | } else { | |
1266 | mpbogus.status = 0; | |
1267 | error = ENXIO; | |
1268 | log(LOG_ERR, "mp%d: start download: unknown status %x", | |
1269 | unit, mb->mb_status); | |
1270 | } | |
5db86c85 | 1271 | bzero((caddr_t)mb->mb_port, sizeof (mb->mb_port)); |
d55465de SL |
1272 | break; |
1273 | case MPIORESETBOARD: | |
1274 | s = spl8(); | |
1275 | if (mb->mb_imokclk) | |
1276 | mb->mb_imokclk = 0; | |
1277 | *(u_short *)mpinfo[unit]->ui_addr = 0x100; | |
1278 | if (mb->mb_status == MP_DLOPEN || mb->mb_status == MP_DLDONE) { | |
1279 | mpdlerr = MP_DLERROR; | |
1280 | dl->mpdl_status = EVSTATUS_FREE; | |
1281 | wakeup((caddr_t)&dl->mpdl_status); | |
1282 | mpbogus.status = 0; | |
1283 | } | |
1284 | for (i = 0; i < MPMAXPORT; i++) { | |
1285 | if (mb->mb_harderr || mb->mb_softerr) | |
1286 | mperror(mb, i); | |
1287 | mpcleanport(mb, i); | |
1288 | mb->mb_proto[i] = MPPROTO_UNUSED; | |
1289 | } | |
1290 | mb->mb_status = 0; | |
1291 | splx(s); | |
1292 | break; | |
1293 | default: | |
1294 | error = EINVAL; | |
1295 | break; | |
1296 | } | |
1297 | return (error); | |
1298 | } | |
1299 | ||
1300 | mpccinit(unit) | |
1301 | int unit; | |
1302 | { | |
1303 | register struct mblok *mb = mp_softc[unit].ms_mb; | |
1304 | register struct his *his; | |
1305 | register int i, j; | |
1306 | ||
1307 | mb->mb_status = MP_DLDONE; | |
1308 | mb->mb_ivec = mp_softc[unit].ms_ivec; | |
1309 | mb->mb_magic = MPMAGIC; | |
1310 | /* Init host interface structure */ | |
1311 | his = &mb->mb_hostint; | |
1312 | his->semaphore = MPSEMA_AVAILABLE; | |
1313 | for (i = 0; i < NMPPROTO; i++) | |
1314 | for (j = 0; j < MPMAXPORT; j++) { | |
1315 | his->proto[i].inbdone[j] = MPPORT_EOL; | |
1316 | his->proto[i].outbdone[j] = MPPORT_EOL; | |
1317 | } | |
1318 | mb->mb_unit = unit; | |
1319 | } | |
1320 | ||
1321 | mpdlintr(mpcc) | |
1322 | int mpcc; | |
1323 | { | |
1324 | register struct mblok *mb; | |
1325 | register struct mpdl *dl; | |
1326 | ||
1327 | mb = mp_softc[mpcc].ms_mb; | |
1328 | if (mb == 0) { | |
1329 | printf("mp%d: stray download interrupt\n", mpcc); | |
1330 | return; | |
1331 | } | |
1332 | dl = &mb->mb_dl; | |
1333 | switch (mb->mb_status) { | |
1334 | case MP_DLOPEN: | |
1335 | if (dl->mpdl_status != EVSTATUS_DONE) | |
1336 | mpdlerr = MP_DLERROR; | |
1337 | dl->mpdl_status = EVSTATUS_FREE; | |
1338 | wakeup((caddr_t)&dl->mpdl_status); | |
1339 | return; | |
1340 | case MP_DLPEND: | |
1341 | mb->mb_status = MP_DLOPEN; | |
5db86c85 | 1342 | wakeup((caddr_t)&mb->mb_status); |
d55465de SL |
1343 | /* fall thru... */ |
1344 | case MP_DLTIME: | |
1345 | return; | |
1346 | case MP_OPOPEN: | |
1347 | if (mb->mb_imokclk) | |
1348 | mb->mb_imokclk = 0; | |
1349 | mb->mb_nointcnt = 0; /* reset no interrupt count */ | |
1350 | mb->mb_hostint.imok = MPIMOK_DEAD; | |
1351 | mb->mb_imokclk = (caddr_t)1; | |
1352 | break; | |
1353 | default: | |
1354 | log(LOG_ERR, "mp%d: mpdlintr, status %x\n", | |
1355 | mpcc, mb->mb_status); | |
1356 | break; | |
1357 | } | |
1358 | } | |
1359 | ||
1360 | mpdltimeout(mp) | |
1361 | struct mblok *mp; | |
1362 | { | |
1363 | ||
1364 | mp->mb_status = MP_DLTIME; | |
1365 | wakeup((caddr_t)&mp->mb_status); | |
1366 | } | |
1367 | ||
1368 | /* | |
1369 | * Wait for a transfer to complete or a timeout to occur. | |
1370 | */ | |
1371 | mpdlwait(dl) | |
1372 | register struct mpdl *dl; | |
1373 | { | |
1374 | int s, error = 0; | |
1375 | ||
1376 | s = spl8(); | |
1377 | dl->mpdl_status = EVSTATUS_GO; | |
1378 | while (dl->mpdl_status != EVSTATUS_FREE) { | |
1379 | sleep((caddr_t)&dl->mpdl_status, PZERO+1); | |
1380 | if (mpdlerr == MP_DLERROR) | |
1381 | error = EIO; | |
1382 | } | |
1383 | splx(s); | |
1384 | return (error); | |
1385 | } | |
1386 | #endif |