Commit | Line | Data |
---|---|---|
5db86c85 MK |
1 | /* |
2 | * Copyright (c) 1988 Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
30a58bac MK |
5 | * This code is derived from software contributed to Berkeley by |
6 | * Computer Consoles Inc. | |
7 | * | |
5db86c85 | 8 | * Redistribution and use in source and binary forms are permitted |
616d42db KB |
9 | * provided that the above copyright notice and this paragraph are |
10 | * duplicated in all such forms and that any documentation, | |
11 | * advertising materials, and other materials related to such | |
12 | * distribution and use acknowledge that the software was developed | |
13 | * by the University of California, Berkeley. The name of the | |
14 | * University may not be used to endorse or promote products derived | |
15 | * from this software without specific prior written permission. | |
16 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
17 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
18 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
5db86c85 | 19 | * |
30a58bac | 20 | * @(#)mp.c 7.6 (Berkeley) %G% |
5db86c85 | 21 | */ |
d55465de SL |
22 | |
23 | #include "mp.h" | |
24 | #if NMP > 0 | |
25 | /* | |
26 | * Multi Protocol Communications Controller (MPCC). | |
27 | * Asynchronous Terminal Protocol Support. | |
28 | */ | |
d55465de SL |
29 | #include "param.h" |
30 | #include "ioctl.h" | |
31 | #include "tty.h" | |
32 | #include "dir.h" | |
33 | #include "user.h" | |
34 | #include "map.h" | |
35 | #include "buf.h" | |
36 | #include "conf.h" | |
37 | #include "file.h" | |
38 | #include "uio.h" | |
39 | #include "errno.h" | |
40 | #include "syslog.h" | |
41 | #include "vmmac.h" | |
42 | #include "kernel.h" | |
43 | #include "clist.h" | |
44 | ||
5db86c85 MK |
45 | #include "../machine/pte.h" |
46 | #include "../machine/mtpr.h" | |
47 | ||
d55465de SL |
48 | #include "../tahoevba/vbavar.h" |
49 | #include "../tahoevba/mpreg.h" | |
50 | ||
51 | #define MPCHUNK 16 | |
52 | #define MPPORT(n) ((n) & 0xf) | |
53 | #define MPUNIT(n) ((n) >> 4) | |
54 | ||
55 | /* | |
56 | * Driver information for auto-configuration stuff. | |
57 | */ | |
58 | int mpprobe(), mpattach(), mpintr(); | |
59 | struct vba_device *mpinfo[NMP]; | |
60 | long mpstd[] = { 0 }; | |
61 | struct vba_driver mpdriver = | |
62 | { mpprobe, 0, mpattach, 0, mpstd, "mp", mpinfo }; | |
63 | ||
64 | int mpstart(); | |
65 | struct mpevent *mpparam(); | |
66 | struct mpevent *mp_getevent(); | |
67 | ||
68 | /* | |
69 | * The following structure is needed to deal with mpcc's convoluted | |
70 | * method for locating it's mblok structures (hold your stomach). | |
71 | * When an mpcc is reset at boot time it searches host memory | |
72 | * looking for a string that says ``ThIs Is MpCc''. The mpcc | |
73 | * then reads the structure to locate the pointer to it's mblok | |
74 | * structure (you can wretch now). | |
75 | */ | |
76 | struct mpbogus { | |
77 | char s[12]; /* `ThIs Is MpCc'' */ | |
78 | u_char status; | |
79 | u_char unused; | |
80 | u_short magic; | |
81 | struct mblok *mb; | |
82 | struct mblok *mbloks[NMP]; /* can support at most 16 mpcc's */ | |
83 | } mpbogus = { 'T','h','I','s',' ','I','s',' ','M','p','C','c' }; | |
84 | ||
85 | /* | |
86 | * Software state per unit. | |
87 | */ | |
88 | struct mpsoftc { | |
89 | u_int ms_ivec; /* interrupt vector */ | |
90 | u_int ms_softCAR; /* software carrier for async */ | |
91 | struct mblok *ms_mb; /* mpcc status area */ | |
92 | struct vb_buf ms_buf; /* vba resources for ms_mb */ | |
93 | struct hxmtl ms_hxl[MPMAXPORT];/* host transmit list */ | |
94 | struct asyncparam ms_async[MPMAXPORT][MPINSET];/* async structs */ | |
95 | char ms_cbuf[MPMAXPORT][MPOUTSET][CBSIZE];/* input character buffers */ | |
96 | } mp_softc[NMP]; | |
97 | ||
98 | struct tty mp_tty[NMP*MPCHUNK]; | |
99 | #ifndef lint | |
100 | int nmp = NMP*MPCHUNK; | |
101 | #endif | |
102 | ||
103 | int ttrstrt(); | |
104 | ||
105 | mpprobe(reg, vi) | |
106 | caddr_t reg; | |
107 | struct vba_device *vi; | |
108 | { | |
109 | register int br, cvec; | |
110 | register struct mpsoftc *ms; | |
111 | ||
112 | #ifdef lint | |
113 | br = 0; cvec = br; br = cvec; | |
114 | mpintr(0); | |
5db86c85 | 115 | mpdlintr(0); |
d55465de SL |
116 | #endif |
117 | if (badaddr(reg, 2)) | |
118 | return (0); | |
119 | ms = &mp_softc[vi->ui_unit]; | |
120 | /* | |
121 | * Allocate page tables and mblok | |
122 | * structure (mblok in non-cached memory). | |
123 | */ | |
124 | if (vbainit(&ms->ms_buf, sizeof (struct mblok), VB_32BIT) == 0) { | |
125 | printf("mp%d: vbainit failed\n", vi->ui_unit); | |
126 | return (0); | |
127 | } | |
128 | ms->ms_mb = (struct mblok *)ms->ms_buf.vb_rawbuf; | |
129 | ms->ms_ivec = MPINTRBASE + 2*vi->ui_unit; /* XXX */ | |
130 | br = 0x14, cvec = ms->ms_ivec; /* XXX */ | |
7c707d99 | 131 | return (sizeof (*reg)); |
d55465de SL |
132 | } |
133 | ||
134 | mpattach(vi) | |
135 | register struct vba_device *vi; | |
136 | { | |
137 | register struct mpsoftc *ms = &mp_softc[vi->ui_unit]; | |
138 | ||
139 | ms->ms_softCAR = vi->ui_flags; | |
140 | /* | |
141 | * Setup pointer to mblok, initialize bogus | |
142 | * status block used by mpcc to locate the pointer | |
143 | * and then poke the mpcc to get it to search host | |
144 | * memory to find mblok pointer. | |
145 | */ | |
146 | mpbogus.mbloks[vi->ui_unit] = (struct mblok *)ms->ms_buf.vb_physbuf; | |
147 | *(short *)vi->ui_addr = 0x100; /* magic */ | |
148 | } | |
149 | ||
150 | /* | |
151 | * Open an mpcc port. | |
152 | */ | |
5db86c85 | 153 | /* ARGSUSED */ |
d55465de SL |
154 | mpopen(dev, mode) |
155 | dev_t dev; | |
156 | { | |
157 | register struct tty *tp; | |
158 | register struct mpsoftc *ms; | |
159 | int error, s, port, unit, mpu; | |
160 | struct vba_device *vi; | |
161 | struct mpport *mp; | |
162 | struct mpevent *ev; | |
163 | ||
164 | unit = minor(dev); | |
165 | mpu = MPUNIT(unit); | |
166 | if (mpu >= NMP || (vi = mpinfo[mpu]) == 0 || vi->ui_alive == 0) | |
167 | return (ENXIO); | |
168 | tp = &mp_tty[unit]; | |
169 | if (tp->t_state & TS_XCLUDE && u.u_uid != 0) | |
170 | return (EBUSY); | |
171 | ms = &mp_softc[mpu]; | |
172 | port = MPPORT(unit); | |
173 | if (ms->ms_mb->mb_proto[port] != MPPROTO_ASYNC || | |
174 | ms->ms_mb->mb_status != MP_OPOPEN) | |
175 | return (ENXIO); | |
176 | mp = &ms->ms_mb->mb_port[port]; /* host mpcc struct */ | |
177 | s = spl8(); | |
178 | while (mp->mp_flags & MP_PROGRESS) | |
179 | sleep((caddr_t)&tp->t_canq, TTIPRI); | |
180 | while (tp->t_state & TS_WOPEN) | |
181 | sleep((caddr_t)&tp->t_canq, TTIPRI); | |
d55465de SL |
182 | tp->t_state |= TS_WOPEN; |
183 | tp->t_addr = (caddr_t)ms; | |
184 | tp->t_oproc = mpstart; | |
185 | tp->t_dev = dev; | |
0eeaf15c KB |
186 | if ((tp->t_state & TS_ISOPEN) == 0) { |
187 | ttychars(tp); | |
188 | if (tp->t_ispeed == 0) { | |
189 | tp->t_ispeed = B9600; | |
190 | tp->t_ospeed = B9600; | |
191 | tp->t_flags = ODDP|EVENP|ECHO; | |
192 | } | |
193 | /* | |
194 | * Initialize port state: init MPCC interface | |
195 | * structures for port and setup modem control. | |
196 | */ | |
197 | mp->mp_proto = MPPROTO_ASYNC; /* XXX */ | |
198 | error = mpportinit(ms, mp, port); | |
199 | if (error) | |
200 | goto bad; | |
201 | ev = mpparam(unit); | |
202 | if (ev == 0) { | |
203 | error = ENOBUFS; | |
204 | goto bad; | |
205 | } | |
206 | mpcmd(ev, EVCMD_OPEN, 0, ms->ms_mb, port); | |
d55465de | 207 | } |
d55465de SL |
208 | while ((tp->t_state & TS_CARR_ON) == 0) |
209 | sleep((caddr_t)&tp->t_rawq, TTIPRI); | |
210 | error = (*linesw[tp->t_line].l_open)(dev,tp); | |
211 | done: | |
212 | splx(s); | |
213 | /* wakeup anyone waiting for open to complete */ | |
214 | wakeup((caddr_t)&tp->t_canq); | |
215 | ||
216 | return (error); | |
217 | bad: | |
218 | tp->t_state &= ~TS_WOPEN; | |
219 | goto done; | |
220 | } | |
221 | ||
222 | /* | |
223 | * Close an mpcc port. | |
224 | */ | |
5db86c85 MK |
225 | /* ARGSUSED */ |
226 | mpclose(dev, flag) | |
d55465de SL |
227 | dev_t dev; |
228 | { | |
229 | register struct tty *tp; | |
230 | register struct mpport *mp; | |
231 | register struct mpevent *ev; | |
232 | int s, port, unit, error; | |
233 | struct mblok *mb; | |
234 | ||
235 | unit = minor(dev); | |
236 | tp = &mp_tty[unit]; | |
237 | port = MPPORT(unit); | |
238 | mb = mp_softc[MPUNIT(unit)].ms_mb; | |
239 | mp = &mb->mb_port[port]; | |
240 | s = spl8(); | |
30a58bac | 241 | if (mp->mp_flags & MP_PROGRESS) { /* close in progress??? */ |
d55465de SL |
242 | if (mp->mp_flags & MP_REMBSY) { |
243 | mp->mp_flags &= ~MP_REMBSY; | |
244 | splx(s); | |
245 | return (0); | |
246 | } | |
247 | while (mp->mp_flags & MP_PROGRESS) | |
248 | sleep((caddr_t)&tp->t_canq,TTIPRI); | |
249 | } | |
250 | error = 0; | |
251 | mp->mp_flags |= MP_PROGRESS; | |
252 | (*linesw[tp->t_line].l_close)(tp); | |
d55465de SL |
253 | ev = mp_getevent(mp, unit); |
254 | if (ev == 0) { | |
954f71cc KB |
255 | error = ENOBUFS; |
256 | mp->mp_flags &= ~MP_PROGRESS; | |
257 | goto out; | |
d55465de | 258 | } |
954f71cc KB |
259 | if (tp->t_state & TS_HUPCLS || (tp->t_state & TS_ISOPEN) == 0) |
260 | mpmodem(unit, MMOD_OFF); | |
261 | else | |
262 | mpmodem(unit, MMOD_ON); | |
d55465de | 263 | mpcmd(ev, EVCMD_CLOSE, 0, mb, port); |
954f71cc | 264 | ttyclose(tp); |
d55465de SL |
265 | out: |
266 | if (mp->mp_flags & MP_REMBSY) | |
267 | mpclean(mb, port); | |
268 | splx(s); | |
269 | return (error); | |
270 | } | |
271 | ||
272 | /* | |
273 | * Read from an mpcc port. | |
274 | */ | |
275 | mpread(dev, uio) | |
276 | dev_t dev; | |
277 | struct uio *uio; | |
278 | { | |
279 | struct tty *tp; | |
280 | ||
281 | tp = &mp_tty[minor(dev)]; | |
282 | return ((*linesw[tp->t_line].l_read)(tp, uio)); | |
283 | } | |
284 | ||
285 | /* | |
286 | * Write to an mpcc port. | |
287 | */ | |
288 | mpwrite(dev, uio) | |
289 | dev_t dev; | |
290 | struct uio *uio; | |
291 | { | |
292 | struct tty *tp; | |
293 | ||
294 | tp = &mp_tty[minor(dev)]; | |
295 | return ((*linesw[tp->t_line].l_write)(tp, uio)); | |
296 | } | |
297 | ||
298 | /* | |
299 | * Ioctl for a mpcc port | |
300 | */ | |
301 | mpioctl(dev, cmd, data, flag) | |
302 | dev_t dev; | |
303 | caddr_t data; | |
304 | { | |
305 | register struct tty *tp; | |
306 | register struct mpsoftc *ms; | |
307 | register struct mpevent *ev; | |
308 | register struct mpport *mp; | |
309 | int s, port, error, unit; | |
310 | struct mblok *mb; | |
311 | ||
312 | unit = minor(dev); | |
313 | tp = &mp_tty[unit]; | |
314 | ms = &mp_softc[MPUNIT(unit)]; | |
315 | mb = ms->ms_mb; | |
316 | error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag); | |
317 | if (error >= 0) | |
318 | return (error); | |
319 | error = ttioctl(tp, cmd, data, flag); | |
320 | if (error >= 0) { | |
321 | if (cmd == TIOCSETP || cmd == TIOCSETN || cmd == TIOCLBIS || | |
b532c831 | 322 | cmd == TIOCLBIC || cmd == TIOCLSET || cmd == TIOCSETC) { |
d55465de SL |
323 | ev = mpparam(unit); |
324 | if (ev == 0) | |
325 | error = ENOBUFS; | |
326 | else | |
327 | mpcmd(ev, EVCMD_IOCTL, A_CHGALL, mb, | |
328 | MPPORT(unit)); | |
329 | } | |
330 | return (error); | |
331 | } | |
332 | switch (cmd) { | |
333 | case TIOCSBRK: /* send break */ | |
334 | case TIOCCBRK: /* clear break */ | |
335 | port = MPPORT(unit); | |
336 | mp = &mb->mb_port[port]; | |
337 | s = spl8(); | |
338 | ev = mp_getevent(mp, unit); | |
339 | if (ev) | |
340 | mpcmd(ev, EVCMD_IOCTL, | |
341 | (cmd == TIOCSBRK ? A_BRKON : A_BRKOFF), | |
342 | mb, port); | |
343 | else | |
344 | error = ENOBUFS; | |
345 | splx(s); | |
346 | break; | |
347 | case TIOCSDTR: /* set dtr control line */ | |
348 | break; | |
349 | case TIOCCDTR: /* clear dtr control line */ | |
350 | break; | |
351 | default: | |
352 | error = ENOTTY; | |
353 | break; | |
354 | } | |
355 | return (error); | |
356 | } | |
357 | ||
358 | struct mpevent * | |
359 | mpparam(unit) | |
360 | int unit; | |
361 | { | |
362 | register struct mpevent *ev; | |
363 | register struct mpport *mp; | |
364 | register struct tty *tp; | |
365 | struct mblok *mb; | |
366 | struct mpsoftc *ms; | |
367 | register struct asyncparam *asp; | |
368 | int port; | |
369 | ||
370 | ms = &mp_softc[MPUNIT(unit)]; | |
371 | mb = ms->ms_mb; | |
372 | port = MPPORT(unit); | |
373 | mp = &mb->mb_port[port]; | |
374 | ev = mp_getevent(mp, unit); /* XXX */ | |
375 | if (ev == 0) | |
376 | return (ev); | |
377 | tp = &mp_tty[unit]; | |
378 | /* YUCK */ | |
379 | asp = &ms->ms_async[port][mp->mp_on?mp->mp_on-1:MPINSET-1]; | |
b532c831 KB |
380 | asp->ap_xon = (u_char)tp->t_startc; |
381 | asp->ap_xoff = (u_char)tp->t_stopc; | |
382 | if ((tp->t_flags & RAW) || (tp->t_stopc == -1) || (tp->t_startc == -1)) | |
383 | asp->ap_xena = MPA_DIS; | |
384 | else | |
385 | asp->ap_xena = MPA_ENA; | |
2281df84 | 386 | asp->ap_xany = ((tp->t_flags & DECCTQ) ? MPA_DIS : MPA_ENA); |
d55465de SL |
387 | #ifdef notnow |
388 | if (tp->t_flags & (RAW|LITOUT|PASS8)) { | |
389 | #endif | |
390 | asp->ap_data = MPCHAR_8; | |
391 | asp->ap_parity = MPPAR_NONE; | |
392 | #ifdef notnow | |
393 | } else { | |
394 | asp->ap_data = MPCHAR_7; | |
395 | if ((tp->t_flags & (EVENP|ODDP)) == ODDP) | |
396 | asp->ap_parity = MPPAR_ODD; | |
397 | else | |
398 | asp->ap_parity = MPPAR_EVEN; | |
399 | } | |
400 | #endif | |
401 | if (tp->t_ospeed == B110) | |
402 | asp->ap_stop = MPSTOP_2; | |
403 | else | |
404 | asp->ap_stop = MPSTOP_1; | |
405 | if (tp->t_ospeed == EXTA || tp->t_ospeed == EXTB) | |
406 | asp->ap_baud = M19200; | |
407 | else | |
408 | asp->ap_baud = tp->t_ospeed; | |
409 | asp->ap_loop = MPA_DIS; /* disable loopback */ | |
410 | asp->ap_rtimer = A_RCVTIM; /* default receive timer */ | |
411 | if (ms->ms_softCAR & (1<<port)) | |
412 | setm(&asp->ap_modem, A_DTR, ASSERT); | |
413 | else | |
414 | setm(&asp->ap_modem, A_DTR, AUTO); | |
415 | seti(&asp->ap_intena, A_DCD); | |
416 | return (ev); | |
417 | } | |
418 | ||
419 | mpstart(tp) | |
420 | register struct tty *tp; | |
421 | { | |
422 | register struct mpevent *ev; | |
423 | register struct mpport *mp; | |
424 | struct mblok *mb; | |
425 | struct mpsoftc *ms; | |
426 | int port, unit, xcnt, n, s, i; | |
427 | struct hxmtl *hxp; | |
428 | struct clist outq; | |
429 | ||
430 | s = spl8(); | |
431 | unit = minor(tp->t_dev); | |
432 | ms = &mp_softc[MPUNIT(unit)]; | |
433 | mb = ms->ms_mb; | |
434 | port = MPPORT(unit); | |
435 | mp = &mb->mb_port[port]; | |
436 | hxp = &ms->ms_hxl[port]; | |
437 | xcnt = 0; | |
438 | outq = tp->t_outq; | |
439 | for (i = 0; i < MPXMIT; i++) { | |
440 | if (tp->t_state & (TS_TIMEOUT|TS_BUSY|TS_TTSTOP)) | |
441 | break; | |
442 | if (outq.c_cc <= TTLOWAT(tp)) { | |
443 | if (tp->t_state & TS_ASLEEP) { | |
444 | tp->t_state &= ~TS_ASLEEP; | |
445 | wakeup((caddr_t)&tp->t_outq); | |
446 | } | |
447 | if (tp->t_wsel) { | |
448 | selwakeup(tp->t_wsel, tp->t_state & TS_WCOLL); | |
449 | tp->t_wsel = 0; | |
450 | tp->t_state &= ~TS_WCOLL; | |
451 | } | |
452 | } | |
453 | if (outq.c_cc == 0) | |
454 | break; | |
455 | /* | |
456 | * If we're not currently busy outputting, | |
457 | * and there is data to be output, set up | |
458 | * port transmit structure to send to mpcc. | |
459 | */ | |
460 | if (tp->t_flags & (RAW|LITOUT)) | |
461 | n = ndqb(&outq, 0); | |
462 | else { | |
463 | n = ndqb(&outq, 0200); | |
464 | if (n == 0) { | |
465 | n = getc(&outq); | |
466 | timeout(ttrstrt, (caddr_t)tp, (n&0177)+6); | |
467 | tp->t_state |= TS_TIMEOUT; | |
468 | break; | |
469 | } | |
470 | } | |
5db86c85 | 471 | hxp->dblock[i] = (caddr_t)kvtophys(outq.c_cf); |
d55465de SL |
472 | hxp->size[i] = n; |
473 | xcnt++; /* count of xmts to send */ | |
474 | ndadvance(&outq, n); | |
475 | } | |
476 | /* | |
477 | * If data to send, poke mpcc. | |
478 | */ | |
479 | if (xcnt) { | |
480 | ev = mp_getevent(mp, unit); | |
481 | if (ev == 0) { | |
482 | tp->t_state &= ~(TS_BUSY|TS_TIMEOUT); | |
483 | } else { | |
484 | tp->t_state |= TS_BUSY; | |
485 | ev->ev_count = xcnt; | |
486 | mpcmd(ev, EVCMD_WRITE, 0, mb, MPPORT(unit)); | |
487 | } | |
488 | } | |
489 | splx(s); | |
490 | } | |
491 | ||
492 | /* | |
493 | * Advance cc bytes from q but don't free memory. | |
494 | */ | |
495 | ndadvance(q, cc) | |
496 | register struct clist *q; | |
497 | register cc; | |
498 | { | |
499 | register struct cblock *bp; | |
500 | char *end; | |
501 | int rem, s; | |
502 | ||
503 | s = spltty(); | |
504 | if (q->c_cc <= 0) | |
505 | goto out; | |
506 | while (cc>0 && q->c_cc) { | |
507 | bp = (struct cblock *)((int)q->c_cf & ~CROUND); | |
508 | if ((int)bp == (((int)q->c_cl-1) & ~CROUND)) { | |
509 | end = q->c_cl; | |
510 | } else { | |
511 | end = (char *)((int)bp + sizeof (struct cblock)); | |
512 | } | |
513 | rem = end - q->c_cf; | |
514 | if (cc >= rem) { | |
515 | cc -= rem; | |
516 | q->c_cc -= rem; | |
517 | q->c_cf = bp->c_next->c_info; | |
518 | } else { | |
519 | q->c_cc -= cc; | |
520 | q->c_cf += cc; | |
521 | break; | |
522 | } | |
523 | } | |
524 | if (q->c_cc <= 0) { | |
525 | q->c_cf = q->c_cl = NULL; | |
526 | q->c_cc = 0; | |
527 | } | |
528 | out: | |
529 | splx(s); | |
530 | } | |
531 | ||
532 | /* | |
533 | * Stop output on a line, e.g. for ^S/^Q or output flush. | |
534 | */ | |
5db86c85 | 535 | /* ARGSUSED */ |
d55465de SL |
536 | mpstop(tp, rw) |
537 | register struct tty *tp; | |
538 | int rw; | |
539 | { | |
5db86c85 | 540 | int s; |
d55465de SL |
541 | |
542 | s = spl8(); | |
543 | /* XXX: DISABLE TRANSMITTER */ | |
544 | if (tp->t_state & TS_BUSY) { | |
545 | if ((tp->t_state & TS_TTSTOP) == 0) | |
546 | tp->t_state |= TS_FLUSH; | |
547 | } | |
548 | splx(s); | |
549 | } | |
550 | ||
551 | /* | |
552 | * Initialize an async port's MPCC state. | |
553 | */ | |
554 | mpportinit(ms, mp, port) | |
555 | register struct mpsoftc *ms; | |
556 | register struct mpport *mp; | |
557 | int port; | |
558 | { | |
559 | register struct mpevent *ev; | |
560 | register int i; | |
561 | caddr_t ptr; | |
562 | ||
563 | mp->mp_on = mp->mp_off = 0; | |
564 | mp->mp_nextrcv = 0; | |
565 | mp->mp_flags = 0; | |
566 | ev = &mp->mp_recvq[0]; | |
567 | for (i = 0; ev < &mp->mp_recvq[MPINSET]; ev++, i++) { | |
568 | ev->ev_status = EVSTATUS_FREE; | |
569 | ev->ev_cmd = 0; | |
570 | ev->ev_opts = 0; | |
571 | ev->ev_error = 0; | |
572 | ev->ev_flags = 0; | |
573 | ev->ev_count = 0; | |
5db86c85 MK |
574 | ev->ev_un.hxl = (struct hxmtl *) kvtophys(&ms->ms_hxl[port]); |
575 | ev->ev_params = (caddr_t) kvtophys(&ms->ms_async[port][i]); | |
d55465de SL |
576 | } |
577 | ev = &mp->mp_sendq[0]; | |
578 | for (i = 0; ev < &mp->mp_sendq[MPOUTSET]; ev++, i++) { | |
579 | /* init so that L2 can't send any events */ | |
580 | /* to host until open has completed */ | |
581 | ev->ev_status = EVSTATUS_FREE; | |
582 | ev->ev_cmd = 0; | |
583 | ev->ev_error = 0; | |
584 | ev->ev_flags = 0; | |
585 | ev->ev_count = 0; | |
586 | ptr = (caddr_t) &ms->ms_cbuf[port][i][0]; | |
5db86c85 MK |
587 | ev->ev_un.rcvblk = (u_char *)kvtophys(ptr); |
588 | ev->ev_params = (caddr_t) kvtophys(ptr); | |
d55465de SL |
589 | } |
590 | return (0); | |
591 | } | |
592 | ||
593 | /* | |
594 | * Send an event to an mpcc. | |
595 | */ | |
596 | mpcmd(ev, cmd, flags, mb, port) | |
597 | register struct mpevent *ev; | |
598 | struct mblok *mb; | |
599 | { | |
600 | int s; | |
601 | ||
602 | s = spl8(); | |
603 | /* move host values to inbound entry */ | |
604 | ev->ev_cmd = cmd; | |
605 | ev->ev_opts = flags; | |
606 | /* show event ready for mpcc */ | |
607 | ev->ev_status = EVSTATUS_GO; | |
608 | mpintmpcc(mb, port); | |
609 | splx(s); | |
610 | } | |
611 | ||
612 | /* | |
613 | * Return the next available event entry for the indicated port. | |
614 | */ | |
615 | struct mpevent * | |
616 | mp_getevent(mp, unit) | |
617 | register struct mpport *mp; | |
618 | int unit; | |
619 | { | |
620 | register struct mpevent *ev; | |
621 | int i, s; | |
622 | ||
623 | s = spl8(); | |
624 | ev = &mp->mp_recvq[mp->mp_on]; | |
625 | if (ev->ev_status != EVSTATUS_FREE) | |
626 | goto bad; | |
627 | /* | |
628 | * If not a close request, verify one extra | |
629 | * event is available for closing the port. | |
630 | */ | |
5db86c85 | 631 | if ((mp->mp_flags & MP_PROGRESS) == 0) { |
d55465de SL |
632 | if ((i = mp->mp_on + 1) >= MPINSET) |
633 | i = 0; | |
634 | if (mp->mp_recvq[i].ev_status != EVSTATUS_FREE) | |
635 | goto bad; | |
636 | } | |
637 | /* init inbound fields marking this entry as busy */ | |
638 | ev->ev_error = 0; | |
639 | ev->ev_flags = 0; | |
640 | ev->ev_count = 0; | |
641 | ev->ev_status = EVSTATUS_BUSY; | |
642 | /* adjust pointer to next available inbound entry */ | |
643 | adjptr(mp->mp_on, MPINSET); | |
644 | splx(s); | |
645 | return (ev); | |
646 | bad: | |
647 | splx(s); | |
648 | log(LOG_ERR, "mp%d: port%d, out of events", MPUNIT(unit), MPPORT(unit)); | |
649 | return ((struct mpevent *)0); | |
650 | } | |
651 | ||
652 | mpmodem(unit, flag) | |
653 | int unit, flag; | |
654 | { | |
655 | struct mpsoftc *ms = &mp_softc[MPUNIT(unit)]; | |
656 | int port = MPPORT(unit); | |
657 | register struct mpport *mp; | |
d55465de SL |
658 | register struct asyncparam *asp; |
659 | ||
660 | mp = &ms->ms_mb->mb_port[port]; | |
d55465de SL |
661 | asp = &ms->ms_async[port][mp->mp_on?mp->mp_on-1:MPINSET-1]; |
662 | if (flag == MMOD_ON) { | |
663 | if (ms->ms_softCAR & (1 << port)) | |
664 | setm(&asp->ap_modem, A_DTR, ASSERT); | |
665 | else | |
666 | setm(&asp->ap_modem, A_DTR, AUTO); | |
667 | seti(&asp->ap_intena, A_DCD); | |
668 | } else { | |
669 | setm(&asp->ap_modem, 0, DROP); | |
670 | seti(&asp->ap_intena, 0); | |
671 | } | |
d55465de SL |
672 | } |
673 | ||
674 | /* | |
675 | * Set up the modem control structure according to mask. | |
676 | * Each set bit in the mask means assert the corresponding | |
677 | * modem control line, otherwise, it will be dropped. | |
678 | * RTS is special since it can either be asserted, dropped | |
679 | * or put in auto mode for auto modem control. | |
680 | */ | |
681 | static | |
682 | setm(mc, mask, rts) | |
683 | register struct mdmctl *mc; | |
684 | register int mask; | |
685 | { | |
686 | ||
687 | mc->mc_rngdsr = (mask & A_RNGDSR) ? ASSERT : DROP; | |
688 | mc->mc_rate = (mask & A_RATE) ? ASSERT : DROP; | |
689 | mc->mc_dcd = (mask & A_DCD) ? ASSERT : DROP; | |
690 | mc->mc_sectx = (mask & A_SECTX) ? ASSERT : DROP; | |
691 | mc->mc_cts = (mask & A_CTS) ? ASSERT : DROP; | |
692 | mc->mc_secrx = (mask & A_SECRX) ? ASSERT : DROP; | |
693 | mc->mc_dtr = (mask & A_DTR) ? ASSERT : DROP; | |
694 | mc->mc_rts = rts; | |
695 | } | |
696 | ||
697 | /* | |
698 | * Set up the status change enable field from mask. | |
699 | * When a signal is enabled in this structure and | |
700 | * and a change in state on a corresponding modem | |
701 | * control line occurs, a status change event will | |
702 | * be delivered to the host. | |
703 | */ | |
704 | static | |
705 | seti(mc, mask) | |
706 | register struct mdmctl *mc; | |
707 | register int mask; | |
708 | { | |
709 | ||
710 | mc->mc_rngdsr = (mask & A_RNGDSR) ? MDM_ON : MDM_OFF; | |
711 | mc->mc_rate = (mask & A_RATE) ? MDM_ON : MDM_OFF; | |
712 | mc->mc_dcd = (mask & A_DCD) ? MDM_ON : MDM_OFF; | |
713 | mc->mc_sectx = (mask & A_SECTX) ? MDM_ON : MDM_OFF; | |
714 | mc->mc_cts = (mask & A_CTS) ? MDM_ON : MDM_OFF; | |
715 | mc->mc_secrx = (mask & A_SECRX) ? MDM_ON : MDM_OFF; | |
716 | mc->mc_dtr = (mask & A_DTR) ? MDM_ON : MDM_OFF; | |
717 | mc->mc_rts = (mask & A_RTS) ? MDM_ON : MDM_OFF; | |
718 | } | |
719 | ||
720 | mpcleanport(mb, port) | |
721 | struct mblok *mb; | |
722 | int port; | |
723 | { | |
724 | register struct mpport *mp; | |
725 | register struct tty *tp; | |
726 | ||
727 | mp = &mb->mb_port[port]; | |
728 | if (mp->mp_proto == MPPROTO_ASYNC) { | |
729 | mp->mp_flags = MP_REMBSY; | |
5db86c85 | 730 | /* signal loss of carrier and close */ |
d55465de | 731 | tp = &mp_tty[mb->mb_unit*MPCHUNK+port]; |
d55465de | 732 | ttyflush(tp, FREAD|FWRITE); |
5db86c85 MK |
733 | (void) (*linesw[tp->t_line].l_modem)(tp, 0); |
734 | (void) mpclose(tp->t_dev, 0); | |
d55465de SL |
735 | } |
736 | } | |
737 | ||
738 | mpclean(mb, port) | |
739 | register struct mblok *mb; | |
740 | int port; | |
741 | { | |
742 | register struct mpport *mp; | |
743 | register struct mpevent *ev; | |
744 | register int i; | |
5db86c85 | 745 | u_char list[2]; |
d55465de SL |
746 | int unit; |
747 | ||
748 | mp = &mb->mb_port[port]; | |
749 | unit = mb->mb_unit; | |
750 | for (i = mp->mp_off; i != mp->mp_on; i = (i+1 % MPINSET)) { | |
751 | ev = &mp->mp_recvq[i]; | |
752 | ev->ev_error = ENXIO; | |
753 | ev->ev_status = EVSTATUS_DONE; | |
754 | } | |
755 | list[0] = port, list[1] = MPPORT_EOL; | |
756 | mpxintr(unit, list); | |
757 | mprintr(unit, list); | |
758 | /* Clear async for port */ | |
759 | mp->mp_proto = MPPROTO_UNUSED; | |
760 | mp->mp_flags = 0; | |
761 | mp->mp_on = 0; | |
762 | mp->mp_off = 0; | |
763 | mp->mp_nextrcv = 0; | |
764 | ||
765 | mp_tty[unit*MPCHUNK + port].t_state = 0; | |
766 | for (ev = &mp->mp_sendq[0]; ev < &mp->mp_sendq[MPOUTSET]; ev++) { | |
767 | ev->ev_status = EVSTATUS_FREE; | |
768 | ev->ev_cmd = 0; | |
769 | ev->ev_error = 0; | |
770 | ev->ev_un.rcvblk = 0; | |
771 | ev->ev_params = 0; | |
772 | } | |
773 | for (ev = &mp->mp_recvq[0]; ev < &mp->mp_recvq[MPINSET]; ev++) { | |
774 | ev->ev_status = EVSTATUS_FREE; | |
775 | ev->ev_cmd = 0; | |
776 | ev->ev_error = 0; | |
777 | ev->ev_params = 0; | |
778 | } | |
779 | } | |
780 | ||
781 | /* | |
782 | * MPCC interrupt handler. | |
783 | */ | |
784 | mpintr(mpcc) | |
785 | int mpcc; | |
786 | { | |
787 | register struct mblok *mb; | |
788 | register struct his *his; | |
d55465de SL |
789 | |
790 | mb = mp_softc[mpcc].ms_mb; | |
791 | if (mb == 0) { | |
792 | printf("mp%d: stray interrupt\n", mpcc); | |
793 | return; | |
794 | } | |
795 | his = &mb->mb_hostint; | |
796 | his->semaphore &= ~MPSEMA_AVAILABLE; | |
797 | /* | |
798 | * Check for events to be processed. | |
799 | */ | |
800 | if (his->proto[MPPROTO_ASYNC].outbdone[0] != MPPORT_EOL) | |
801 | mprintr(mpcc, his->proto[MPPROTO_ASYNC].outbdone); | |
802 | if (his->proto[MPPROTO_ASYNC].inbdone[0] != MPPORT_EOL) | |
803 | mpxintr(mpcc, his->proto[MPPROTO_ASYNC].inbdone); | |
804 | if (mb->mb_harderr || mb->mb_softerr) | |
805 | mperror(mb, mpcc); | |
806 | his->semaphore |= MPSEMA_AVAILABLE; | |
807 | } | |
808 | ||
809 | /* | |
810 | * Handler for processing completion of transmitted events. | |
811 | */ | |
812 | mpxintr(unit, list) | |
5db86c85 | 813 | register u_char *list; |
d55465de SL |
814 | { |
815 | register struct mpport *mp; | |
816 | register struct mpevent *ev; | |
817 | register struct mblok *mb; | |
818 | register struct tty *tp; | |
819 | register struct asyncparam *ap; | |
820 | struct mpsoftc *ms; | |
821 | int port, i, j; | |
822 | ||
823 | ms = &mp_softc[unit]; | |
824 | mb = mp_softc[unit].ms_mb; | |
825 | for (j = 0; j < MPMAXPORT && ((port = *list++) != MPPORT_EOL); j++) { | |
826 | /* | |
827 | * Process each completed entry in the inbound queue. | |
828 | */ | |
829 | mp = &mb->mb_port[port]; | |
830 | tp = &mp_tty[unit*MPCHUNK + port]; | |
831 | #define nextevent(mp) &mp->mp_recvq[mp->mp_off] | |
832 | ev = nextevent(mp); | |
833 | for(; ev->ev_status & EVSTATUS_DONE; ev = nextevent(mp)) { | |
834 | /* YUCK */ | |
835 | ap = &ms->ms_async[port][mp->mp_off]; | |
5db86c85 | 836 | mppurge((caddr_t)ap, (int)sizeof (*ap)); |
d55465de SL |
837 | switch (ev->ev_cmd) { |
838 | case EVCMD_OPEN: | |
839 | /* | |
840 | * Open completion, start all reads and | |
841 | * assert modem status information. | |
842 | */ | |
843 | for (i = 0; i < MPOUTSET; i++) | |
844 | mp->mp_sendq[i].ev_status = EVSTATUS_GO; | |
845 | (*linesw[tp->t_line].l_modem) | |
846 | (tp, ap->ap_modem.mc_dcd == ASSERT); | |
847 | break; | |
848 | case EVCMD_CLOSE: | |
849 | /* | |
850 | * Close completion, flush all pending | |
851 | * transmissions, free resources, and | |
852 | * cleanup mpcc port state. | |
853 | */ | |
854 | for (i = 0; i < MPOUTSET; i++) { | |
855 | mp->mp_sendq[i].ev_status = | |
856 | EVSTATUS_FREE; | |
857 | mp->mp_sendq[i].ev_un.rcvblk = 0; | |
858 | mp->mp_sendq[i].ev_params = 0; | |
859 | } | |
860 | tp->t_state &= ~TS_CARR_ON; | |
861 | mp->mp_on = mp->mp_off = mp->mp_nextrcv = 0; | |
862 | mp->mp_flags &= ~MP_PROGRESS; | |
863 | mp->mp_proto = MPPROTO_UNUSED; | |
30a58bac | 864 | wakeup((caddr_t)&tp->t_canq); |
d55465de SL |
865 | goto done; |
866 | case EVCMD_IOCTL: | |
867 | /* | |
868 | * Nothing to do, just pitch. | |
869 | */ | |
870 | break; | |
871 | case EVCMD_WRITE: | |
872 | /* | |
873 | * Transmission completed, update tty | |
874 | * state and restart output. | |
875 | */ | |
876 | tp->t_state &= ~TS_BUSY; | |
30a58bac | 877 | if (tp->t_state & TS_FLUSH) |
d55465de | 878 | tp->t_state &= ~TS_FLUSH; |
30a58bac | 879 | else { |
5db86c85 | 880 | register int cc = 0, n; |
d55465de SL |
881 | struct hxmtl *hxp; |
882 | ||
883 | hxp = &ms->ms_hxl[port]; | |
5db86c85 MK |
884 | for(n = 0; n < ev->ev_count; n++) |
885 | cc += hxp->size[n]; | |
d55465de SL |
886 | ndflush(&tp->t_outq, cc); |
887 | } | |
888 | switch (ev->ev_error) { | |
889 | case A_SIZERR: /*# error in xmt data size */ | |
890 | mplog(unit, port, A_XSIZE, 0); | |
891 | break; | |
892 | case A_NXBERR: /*# no more xmt evt buffers */ | |
893 | mplog(unit, port, A_NOXBUF, 0); | |
894 | break; | |
895 | } | |
896 | mpstart(tp); | |
897 | break; | |
898 | default: | |
5db86c85 | 899 | mplog(unit, port, A_INVCMD, (int)ev->ev_cmd); |
d55465de SL |
900 | break; |
901 | } | |
902 | /* re-init all values in this entry */ | |
903 | ev->ev_cmd = 0; | |
904 | ev->ev_opts = 0; | |
905 | ev->ev_error = 0; | |
906 | ev->ev_flags = 0; | |
907 | ev->ev_count = 0; | |
908 | /* show this entry is available for use */ | |
909 | ev->ev_status = EVSTATUS_FREE; | |
910 | adjptr(mp->mp_off, MPINSET); | |
911 | #undef nextevent | |
912 | } | |
913 | done: | |
914 | ; | |
915 | } | |
916 | } | |
917 | ||
918 | /* | |
919 | * Handler for processing received events. | |
920 | */ | |
921 | mprintr(unit, list) | |
5db86c85 | 922 | u_char *list; |
d55465de SL |
923 | { |
924 | register struct tty *tp; | |
925 | register struct mpport *mp; | |
926 | register struct mpevent *ev; | |
927 | struct mblok *mb; | |
928 | register int cc; | |
929 | register char *cp; | |
930 | struct mpsoftc *ms; | |
931 | caddr_t ptr; | |
932 | char *rcverr; | |
933 | int port, i; | |
934 | ||
935 | ms = &mp_softc[unit]; | |
936 | mb = mp_softc[unit].ms_mb; | |
937 | for (i = 0; i < MPMAXPORT && (port = *list++) != MPPORT_EOL; i++) { | |
938 | tp = &mp_tty[unit*MPCHUNK + port]; | |
939 | mp = &mb->mb_port[port]; | |
940 | ev = &mp->mp_sendq[mp->mp_nextrcv]; | |
941 | while (ev->ev_status & EVSTATUS_DONE) { | |
942 | if (ev->ev_cmd != EVCMD_READ && | |
943 | ev->ev_cmd != EVCMD_STATUS) { | |
944 | mplog(unit, port, "unexpected command", | |
5db86c85 | 945 | (int)ev->ev_cmd); |
d55465de SL |
946 | goto next; |
947 | } | |
948 | if (ev->ev_cmd == EVCMD_STATUS) { | |
949 | /* | |
950 | * Status change, look for carrier changes. | |
951 | */ | |
952 | if (ev->ev_opts == DCDASRT || | |
953 | ev->ev_opts == DCDDROP) | |
954 | (*linesw[tp->t_line].l_modem) | |
955 | (tp, ev->ev_opts == DCDASRT); | |
956 | else | |
957 | mplog(unit, port, | |
958 | "unexpect status command", | |
5db86c85 | 959 | (int)ev->ev_opts); |
d55465de SL |
960 | goto next; |
961 | } | |
962 | /* | |
963 | * Process received data. | |
964 | */ | |
965 | if ((tp->t_state & (TS_ISOPEN|TS_WOPEN)) == 0) | |
966 | goto next; | |
967 | cc = ev->ev_count; | |
968 | if (cc == 0) | |
969 | goto next; | |
970 | /* YUCK */ | |
971 | cp = ms->ms_cbuf[port][mp->mp_nextrcv]; | |
972 | mppurge(cp, CBSIZE); | |
973 | while (cc-- > 0) { | |
974 | /* | |
975 | * A null character is inserted, potentially | |
976 | * when a break or framing error occurs. If | |
977 | * we're not in raw mode, substitute the | |
978 | * interrupt character. | |
979 | */ | |
980 | if (*cp == 0 && | |
981 | (ev->ev_error == BRKASRT || | |
982 | ev->ev_error == FRAMERR)) | |
983 | if ((tp->t_flags&RAW) == 0) | |
984 | *cp = tp->t_intrc; | |
985 | (*linesw[tp->t_line].l_rint)(*cp++, tp); | |
986 | } | |
987 | /* setup for next read */ | |
988 | ptr = (caddr_t)&mp_softc[unit].ms_cbuf[port][mp->mp_nextrcv][0]; | |
5db86c85 MK |
989 | ev->ev_un.rcvblk = (u_char *)kvtophys(ptr); |
990 | ev->ev_params = (caddr_t) kvtophys(ptr); | |
86b469ee KB |
991 | switch(ev->ev_error) { |
992 | case RCVDTA: /* Normal (good) rcv data */ | |
993 | /* do not report the following */ | |
994 | /* they are "normal" errors */ | |
d55465de | 995 | case FRAMERR: /* frame error */ |
86b469ee KB |
996 | case BRKASRT: /* Break condition */ |
997 | case PARERR: /* parity error */ | |
998 | rcverr = (char *)0; | |
d55465de SL |
999 | break; |
1000 | case OVRNERR: /* Overrun error */ | |
1001 | rcverr = "overrun error"; | |
1002 | break; | |
1003 | case OVFERR: /* Overflow error */ | |
1004 | rcverr = "overflow error"; | |
1005 | break; | |
1006 | default: | |
1007 | rcverr = "undefined rcv error"; | |
1008 | } | |
1009 | if (rcverr != (char *)0) | |
5db86c85 | 1010 | mplog(unit, port, rcverr, (int)ev->ev_error); |
d55465de SL |
1011 | next: |
1012 | ev->ev_cmd = 0; | |
1013 | ev->ev_opts = 0; | |
1014 | ev->ev_error = 0; | |
1015 | ev->ev_flags = 0; | |
1016 | ev->ev_status = EVSTATUS_GO; /* start next read */ | |
1017 | adjptr(mp->mp_nextrcv, MPOUTSET); | |
1018 | ev = &mp->mp_sendq[mp->mp_nextrcv]; | |
1019 | } | |
1020 | } | |
1021 | } | |
1022 | ||
1023 | /* | |
1024 | * Log an mpcc diagnostic. | |
1025 | */ | |
1026 | mplog(unit, port, cp, flags) | |
1027 | char *cp; | |
1028 | { | |
1029 | ||
1030 | if (flags) | |
1031 | log(LOG_ERR, "mp%d: port%d, %s (%d)\n", | |
1032 | unit, port, cp, flags); | |
1033 | else | |
1034 | log(LOG_ERR, "mp%d: port%d, %s\n", unit, port, cp); | |
1035 | } | |
1036 | ||
1037 | int MPHOSTINT = 1; | |
1038 | ||
1039 | mptimeint(mb) | |
1040 | register struct mblok *mb; | |
1041 | { | |
1042 | ||
1043 | mb->mb_mpintcnt = 0; | |
1044 | mb->mb_mpintclk = (caddr_t)0; | |
1045 | *(u_short *)mpinfo[mb->mb_unit]->ui_addr = 2; | |
1046 | } | |
1047 | ||
1048 | /* | |
1049 | * Interupt mpcc | |
1050 | */ | |
1051 | mpintmpcc(mb, port) | |
1052 | register struct mblok *mb; | |
d55465de SL |
1053 | { |
1054 | ||
1055 | mb->mb_intr[port] |= MPSEMA_WORK; | |
1056 | if (++mb->mb_mpintcnt == MPHOSTINT) { | |
1057 | mb->mb_mpintcnt = 0; | |
1058 | *(u_short *)mpinfo[mb->mb_unit]->ui_addr = 2; | |
1059 | if (mb->mb_mpintclk) { | |
5db86c85 | 1060 | untimeout(mptimeint, (caddr_t)mb); |
d55465de SL |
1061 | mb->mb_mpintclk = 0; |
1062 | } | |
1063 | } else { | |
1064 | if (mb->mb_mpintclk == 0) { | |
5db86c85 | 1065 | timeout(mptimeint, (caddr_t)mb, 4); |
d55465de SL |
1066 | mb->mb_mpintclk = (caddr_t)1; |
1067 | } | |
1068 | } | |
1069 | } | |
1070 | ||
1071 | static char *mpherrmsg[] = { | |
1072 | "", | |
1073 | "Bus error", /* MPBUSERR */ | |
1074 | "Address error", /* ADDRERR */ | |
1075 | "Undefined ecc interrupt", /* UNDECC */ | |
1076 | "Undefined interrupt", /* UNDINT */ | |
1077 | "Power failure occurred", /* PWRFL */ | |
1078 | "Stray transmit done interrupt", /* NOXENTRY */ | |
1079 | "Two fast timers on one port", /* TWOFTMRS */ | |
1080 | "Interrupt queue full", /* INTQFULL */ | |
1081 | "Interrupt queue ack error", /* INTQERR */ | |
1082 | "Uncorrectable dma parity error", /* CBPERR */ | |
1083 | "32 port ACAP failed power up", /* ACPDEAD */ | |
1084 | }; | |
1085 | #define NHERRS (sizeof (mpherrmsg) / sizeof (mpherrmsg[0])) | |
1086 | ||
1087 | mperror(mb, unit) | |
1088 | register struct mblok *mb; | |
1089 | int unit; | |
1090 | { | |
1091 | register char *cp; | |
1092 | register int i; | |
1093 | ||
1094 | if (mb->mb_softerr) { | |
1095 | switch (mb->mb_softerr) { | |
1096 | case DMAPERR: /* dma parity error */ | |
1097 | cp = "dma parity error"; | |
1098 | break; | |
1099 | case ECCERR: | |
1100 | cp = "local memory ecc error"; | |
1101 | break; | |
1102 | default: | |
1103 | cp = "unknown error"; | |
1104 | break; | |
1105 | } | |
1106 | log(LOG_ERR, "mp%d: soft error, %s", unit, cp); | |
1107 | mb->mb_softerr = 0; | |
1108 | } | |
1109 | if (mb->mb_harderr) { | |
1110 | if (mb->mb_harderr < NHERRS) | |
1111 | cp = mpherrmsg[mb->mb_harderr]; | |
1112 | else | |
1113 | cp = "unknown error"; | |
1114 | log(LOG_ERR, "mp%d: hard error, %s", unit, cp); | |
1115 | if (mb->mb_status == MP_OPOPEN) { | |
1116 | for (i = 0; i < MPMAXPORT; i++) { | |
1117 | mpcleanport(mb, i); | |
1118 | mb->mb_proto[i] = MPPROTO_UNUSED; | |
1119 | } | |
1120 | } | |
1121 | mb->mb_harderr = 0; | |
1122 | mb->mb_status = 0; | |
1123 | } | |
1124 | } | |
1125 | ||
1126 | mppurge(addr, cc) | |
1127 | register caddr_t addr; | |
1128 | register int cc; | |
1129 | { | |
1130 | ||
1131 | for (; cc >= 0; addr += NBPG, cc -= NBPG) | |
1132 | mtpr(P1DC, addr); | |
1133 | } | |
1134 | ||
1135 | /* | |
1136 | * MPCC Download Pseudo-device. | |
1137 | */ | |
1138 | char mpdlbuf[MPDLBUFSIZE]; | |
1139 | int mpdlbusy; /* interlock on download buffer */ | |
1140 | int mpdlerr; | |
1141 | ||
1142 | mpdlopen(dev) | |
1143 | dev_t dev; | |
1144 | { | |
1145 | int unit, mpu; | |
1146 | struct vba_device *vi; | |
1147 | ||
1148 | unit = minor(dev); | |
1149 | mpu = MPUNIT(unit); | |
1150 | if (mpu >= NMP || (vi = mpinfo[mpu]) == 0 || vi->ui_alive == 0) | |
1151 | return (ENODEV); | |
1152 | return (0); | |
1153 | } | |
1154 | ||
1155 | mpdlwrite(dev, uio) | |
1156 | dev_t dev; | |
1157 | struct uio *uio; | |
1158 | { | |
1159 | register struct mpsoftc *ms = &mp_softc[MPUNIT(minor(dev))]; | |
1160 | register struct mpdl *dl; | |
1161 | int error; | |
1162 | ||
1163 | if (ms->ms_mb == 0 || ms->ms_mb->mb_status != MP_DLOPEN) | |
1164 | return (EFAULT); | |
1165 | dl = &ms->ms_mb->mb_dl; | |
1166 | dl->mpdl_count = uio->uio_iov->iov_len; | |
5db86c85 MK |
1167 | dl->mpdl_data = (caddr_t) kvtophys(mpdlbuf); |
1168 | if (error = uiomove(mpdlbuf, (int)dl->mpdl_count, UIO_WRITE, uio)) | |
d55465de SL |
1169 | return (error); |
1170 | uio->uio_resid -= dl->mpdl_count; /* set up return from write */ | |
1171 | dl->mpdl_cmd = MPDLCMD_NORMAL; | |
1172 | error = mpdlwait(dl); | |
1173 | return (error); | |
1174 | } | |
1175 | ||
1176 | mpdlclose(dev) | |
1177 | dev_t dev; | |
1178 | { | |
1179 | register struct mblok *mb = mp_softc[MPUNIT(minor(dev))].ms_mb; | |
d55465de SL |
1180 | |
1181 | if (mb == 0 || mb->mb_status != MP_DLDONE) { | |
1182 | mpbogus.status = 0; | |
1183 | if (mpbogus.mb == mpbogus.mbloks[MPUNIT(minor(dev))]) | |
1184 | mpdlbusy--; | |
1185 | return (EEXIST); | |
1186 | } | |
1187 | mb->mb_status = MP_OPOPEN; | |
1188 | mpbogus.status = 0; | |
1189 | /* set to dead, for board handshake */ | |
1190 | mb->mb_hostint.imok = MPIMOK_DEAD; | |
1191 | return (0); | |
1192 | } | |
1193 | ||
1194 | int mpdltimeout(); | |
1195 | ||
5db86c85 | 1196 | /* ARGSUSED */ |
d55465de SL |
1197 | mpdlioctl(dev, cmd, data, flag) |
1198 | dev_t dev; | |
1199 | caddr_t data; | |
1200 | { | |
1201 | register struct mblok *mb; | |
1202 | register struct mpdl *dl; | |
5db86c85 | 1203 | int unit, error, s, i; |
d55465de SL |
1204 | |
1205 | mb = mp_softc[unit=MPUNIT(minor(dev))].ms_mb; | |
1206 | if (mb == 0) | |
1207 | return (EEXIST); | |
1208 | dl = &mb->mb_dl; | |
1209 | error = 0; | |
1210 | switch (cmd) { | |
1211 | case MPIOPORTMAP: | |
1212 | bcopy(data, (caddr_t)mb->mb_proto, sizeof (mb->mb_proto)); | |
1213 | break; | |
1214 | case MPIOHILO: | |
1215 | bcopy(data, (caddr_t)&mb->mb_hiport, 2*(sizeof(mb->mb_hiport))); | |
1216 | break; | |
1217 | case MPIOENDDL: | |
1218 | dl->mpdl_count = 0; | |
1219 | dl->mpdl_data = 0; | |
1220 | dl->mpdl_cmd = MPIOENDDL&IOCPARM_MASK; | |
1221 | error = mpdlwait(dl); | |
1222 | mpccinit(unit); | |
1223 | mb->mb_status = MP_DLDONE; | |
1224 | mpdlbusy--; | |
1225 | break; | |
1226 | case MPIOENDCODE: | |
1227 | dl->mpdl_count = 0; | |
1228 | dl->mpdl_data = 0; | |
1229 | dl->mpdl_cmd = MPIOENDCODE&IOCPARM_MASK; | |
1230 | error = mpdlwait(dl); | |
1231 | break; | |
1232 | case MPIOASYNCNF: | |
1233 | bcopy(data, mpdlbuf, sizeof (struct abdcf)); | |
5db86c85 | 1234 | dl->mpdl_data = (caddr_t) kvtophys(mpdlbuf); |
d55465de SL |
1235 | dl->mpdl_count = sizeof (struct abdcf); |
1236 | dl->mpdl_cmd = MPIOASYNCNF&IOCPARM_MASK; | |
1237 | error = mpdlwait(dl); | |
1238 | break; | |
1239 | case MPIOSTARTDL: | |
1240 | while (mpdlbusy) | |
1241 | sleep((caddr_t)&mpdlbusy, PZERO+1); | |
1242 | mpdlbusy++; | |
1243 | /* initialize the downloading interface */ | |
1244 | mpbogus.magic = MPMAGIC; | |
1245 | mpbogus.mb = mpbogus.mbloks[unit]; | |
1246 | mpbogus.status = 1; | |
1247 | dl->mpdl_status = EVSTATUS_FREE; | |
1248 | dl->mpdl_count = 0; | |
1249 | dl->mpdl_cmd = 0; | |
1250 | dl->mpdl_data = (char *) 0; | |
1251 | mpdlerr = 0; | |
1252 | mb->mb_magic = MPMAGIC; | |
1253 | mb->mb_ivec = mp_softc[unit].ms_ivec+1; /* download vector */ | |
1254 | mb->mb_status = MP_DLPEND; | |
1255 | mb->mb_diagswitch[0] = 'A'; | |
1256 | mb->mb_diagswitch[1] = 'P'; | |
1257 | s = spl8(); | |
1258 | *(u_short *)mpinfo[unit]->ui_addr = 2; | |
5db86c85 | 1259 | timeout(mpdltimeout, (caddr_t)mb, 30*hz); |
d55465de SL |
1260 | sleep((caddr_t)&mb->mb_status, PZERO+1); |
1261 | splx(s); | |
1262 | if (mb->mb_status == MP_DLOPEN) { | |
5db86c85 | 1263 | untimeout(mpdltimeout, (caddr_t)mb); |
d55465de SL |
1264 | } else if (mb->mb_status == MP_DLTIME) { |
1265 | mpbogus.status = 0; | |
1266 | error = ETIMEDOUT; | |
1267 | } else { | |
1268 | mpbogus.status = 0; | |
1269 | error = ENXIO; | |
1270 | log(LOG_ERR, "mp%d: start download: unknown status %x", | |
1271 | unit, mb->mb_status); | |
1272 | } | |
5db86c85 | 1273 | bzero((caddr_t)mb->mb_port, sizeof (mb->mb_port)); |
d55465de SL |
1274 | break; |
1275 | case MPIORESETBOARD: | |
1276 | s = spl8(); | |
1277 | if (mb->mb_imokclk) | |
1278 | mb->mb_imokclk = 0; | |
1279 | *(u_short *)mpinfo[unit]->ui_addr = 0x100; | |
1280 | if (mb->mb_status == MP_DLOPEN || mb->mb_status == MP_DLDONE) { | |
1281 | mpdlerr = MP_DLERROR; | |
1282 | dl->mpdl_status = EVSTATUS_FREE; | |
1283 | wakeup((caddr_t)&dl->mpdl_status); | |
1284 | mpbogus.status = 0; | |
1285 | } | |
1286 | for (i = 0; i < MPMAXPORT; i++) { | |
1287 | if (mb->mb_harderr || mb->mb_softerr) | |
1288 | mperror(mb, i); | |
1289 | mpcleanport(mb, i); | |
1290 | mb->mb_proto[i] = MPPROTO_UNUSED; | |
1291 | } | |
1292 | mb->mb_status = 0; | |
1293 | splx(s); | |
1294 | break; | |
1295 | default: | |
1296 | error = EINVAL; | |
1297 | break; | |
1298 | } | |
1299 | return (error); | |
1300 | } | |
1301 | ||
1302 | mpccinit(unit) | |
1303 | int unit; | |
1304 | { | |
1305 | register struct mblok *mb = mp_softc[unit].ms_mb; | |
1306 | register struct his *his; | |
1307 | register int i, j; | |
1308 | ||
1309 | mb->mb_status = MP_DLDONE; | |
1310 | mb->mb_ivec = mp_softc[unit].ms_ivec; | |
1311 | mb->mb_magic = MPMAGIC; | |
1312 | /* Init host interface structure */ | |
1313 | his = &mb->mb_hostint; | |
1314 | his->semaphore = MPSEMA_AVAILABLE; | |
1315 | for (i = 0; i < NMPPROTO; i++) | |
1316 | for (j = 0; j < MPMAXPORT; j++) { | |
1317 | his->proto[i].inbdone[j] = MPPORT_EOL; | |
1318 | his->proto[i].outbdone[j] = MPPORT_EOL; | |
1319 | } | |
1320 | mb->mb_unit = unit; | |
1321 | } | |
1322 | ||
1323 | mpdlintr(mpcc) | |
1324 | int mpcc; | |
1325 | { | |
1326 | register struct mblok *mb; | |
1327 | register struct mpdl *dl; | |
1328 | ||
1329 | mb = mp_softc[mpcc].ms_mb; | |
1330 | if (mb == 0) { | |
1331 | printf("mp%d: stray download interrupt\n", mpcc); | |
1332 | return; | |
1333 | } | |
1334 | dl = &mb->mb_dl; | |
1335 | switch (mb->mb_status) { | |
1336 | case MP_DLOPEN: | |
1337 | if (dl->mpdl_status != EVSTATUS_DONE) | |
1338 | mpdlerr = MP_DLERROR; | |
1339 | dl->mpdl_status = EVSTATUS_FREE; | |
1340 | wakeup((caddr_t)&dl->mpdl_status); | |
1341 | return; | |
1342 | case MP_DLPEND: | |
1343 | mb->mb_status = MP_DLOPEN; | |
5db86c85 | 1344 | wakeup((caddr_t)&mb->mb_status); |
d55465de SL |
1345 | /* fall thru... */ |
1346 | case MP_DLTIME: | |
1347 | return; | |
1348 | case MP_OPOPEN: | |
1349 | if (mb->mb_imokclk) | |
1350 | mb->mb_imokclk = 0; | |
1351 | mb->mb_nointcnt = 0; /* reset no interrupt count */ | |
1352 | mb->mb_hostint.imok = MPIMOK_DEAD; | |
1353 | mb->mb_imokclk = (caddr_t)1; | |
1354 | break; | |
1355 | default: | |
1356 | log(LOG_ERR, "mp%d: mpdlintr, status %x\n", | |
1357 | mpcc, mb->mb_status); | |
1358 | break; | |
1359 | } | |
1360 | } | |
1361 | ||
1362 | mpdltimeout(mp) | |
1363 | struct mblok *mp; | |
1364 | { | |
1365 | ||
1366 | mp->mb_status = MP_DLTIME; | |
1367 | wakeup((caddr_t)&mp->mb_status); | |
1368 | } | |
1369 | ||
1370 | /* | |
1371 | * Wait for a transfer to complete or a timeout to occur. | |
1372 | */ | |
1373 | mpdlwait(dl) | |
1374 | register struct mpdl *dl; | |
1375 | { | |
1376 | int s, error = 0; | |
1377 | ||
1378 | s = spl8(); | |
1379 | dl->mpdl_status = EVSTATUS_GO; | |
1380 | while (dl->mpdl_status != EVSTATUS_FREE) { | |
1381 | sleep((caddr_t)&dl->mpdl_status, PZERO+1); | |
1382 | if (mpdlerr == MP_DLERROR) | |
1383 | error = EIO; | |
1384 | } | |
1385 | splx(s); | |
1386 | return (error); | |
1387 | } | |
1388 | #endif |