Commit | Line | Data |
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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 | * |
255871c5 | 20 | * @(#)mp.c 7.7 (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(); | |
255871c5 KB |
178 | /* |
179 | * serialize open and close events | |
180 | */ | |
181 | while ((mp->mp_flags & MP_PROGRESS) || (tp->t_state & TS_WOPEN)) | |
d55465de | 182 | sleep((caddr_t)&tp->t_canq, TTIPRI); |
255871c5 | 183 | restart: |
d55465de SL |
184 | tp->t_state |= TS_WOPEN; |
185 | tp->t_addr = (caddr_t)ms; | |
186 | tp->t_oproc = mpstart; | |
187 | tp->t_dev = dev; | |
0eeaf15c KB |
188 | if ((tp->t_state & TS_ISOPEN) == 0) { |
189 | ttychars(tp); | |
190 | if (tp->t_ispeed == 0) { | |
191 | tp->t_ispeed = B9600; | |
192 | tp->t_ospeed = B9600; | |
193 | tp->t_flags = ODDP|EVENP|ECHO; | |
194 | } | |
195 | /* | |
196 | * Initialize port state: init MPCC interface | |
197 | * structures for port and setup modem control. | |
198 | */ | |
0eeaf15c KB |
199 | error = mpportinit(ms, mp, port); |
200 | if (error) | |
201 | goto bad; | |
202 | ev = mpparam(unit); | |
203 | if (ev == 0) { | |
204 | error = ENOBUFS; | |
205 | goto bad; | |
206 | } | |
255871c5 | 207 | mp->mp_flags |= MP_PROGRESS; |
0eeaf15c | 208 | mpcmd(ev, EVCMD_OPEN, 0, ms->ms_mb, port); |
255871c5 KB |
209 | /* |
210 | * wait for port to start | |
211 | */ | |
212 | while (mp->mp_proto != MPPROTO_ASYNC) | |
213 | sleep((caddr_t)&tp->t_canq, TTIPRI); | |
214 | mp->mp_flags &= ~MP_PROGRESS; | |
d55465de | 215 | } |
255871c5 | 216 | while ((tp->t_state & TS_CARR_ON) == 0) { |
d55465de | 217 | sleep((caddr_t)&tp->t_rawq, TTIPRI); |
255871c5 KB |
218 | /* |
219 | * a mpclose() might have disabled port. if so restart | |
220 | */ | |
221 | if (mp->mp_proto != MPPROTO_ASYNC) | |
222 | goto restart; | |
223 | tp->t_state |= TS_WOPEN; | |
224 | } | |
d55465de SL |
225 | error = (*linesw[tp->t_line].l_open)(dev,tp); |
226 | done: | |
227 | splx(s); | |
255871c5 KB |
228 | /* |
229 | * wakeup those processes waiting for the open to complete | |
230 | */ | |
d55465de | 231 | wakeup((caddr_t)&tp->t_canq); |
d55465de SL |
232 | return (error); |
233 | bad: | |
234 | tp->t_state &= ~TS_WOPEN; | |
235 | goto done; | |
236 | } | |
237 | ||
238 | /* | |
239 | * Close an mpcc port. | |
240 | */ | |
5db86c85 MK |
241 | /* ARGSUSED */ |
242 | mpclose(dev, flag) | |
d55465de SL |
243 | dev_t dev; |
244 | { | |
245 | register struct tty *tp; | |
246 | register struct mpport *mp; | |
247 | register struct mpevent *ev; | |
248 | int s, port, unit, error; | |
249 | struct mblok *mb; | |
250 | ||
251 | unit = minor(dev); | |
252 | tp = &mp_tty[unit]; | |
253 | port = MPPORT(unit); | |
254 | mb = mp_softc[MPUNIT(unit)].ms_mb; | |
255 | mp = &mb->mb_port[port]; | |
256 | s = spl8(); | |
255871c5 | 257 | if (mp->mp_flags & MP_PROGRESS) { |
d55465de SL |
258 | if (mp->mp_flags & MP_REMBSY) { |
259 | mp->mp_flags &= ~MP_REMBSY; | |
260 | splx(s); | |
261 | return (0); | |
262 | } | |
263 | while (mp->mp_flags & MP_PROGRESS) | |
255871c5 | 264 | sleep((caddr_t)&tp->t_canq, TTIPRI); |
d55465de SL |
265 | } |
266 | error = 0; | |
267 | mp->mp_flags |= MP_PROGRESS; | |
268 | (*linesw[tp->t_line].l_close)(tp); | |
255871c5 | 269 | ev = mp_getevent(mp, unit, 1); |
d55465de | 270 | if (ev == 0) { |
954f71cc KB |
271 | error = ENOBUFS; |
272 | mp->mp_flags &= ~MP_PROGRESS; | |
273 | goto out; | |
d55465de | 274 | } |
954f71cc KB |
275 | if (tp->t_state & TS_HUPCLS || (tp->t_state & TS_ISOPEN) == 0) |
276 | mpmodem(unit, MMOD_OFF); | |
277 | else | |
278 | mpmodem(unit, MMOD_ON); | |
d55465de | 279 | mpcmd(ev, EVCMD_CLOSE, 0, mb, port); |
954f71cc | 280 | ttyclose(tp); |
d55465de SL |
281 | out: |
282 | if (mp->mp_flags & MP_REMBSY) | |
283 | mpclean(mb, port); | |
255871c5 KB |
284 | else |
285 | while (mp->mp_flags & MP_PROGRESS) | |
286 | sleep((caddr_t)&tp->t_canq,TTIPRI); | |
d55465de SL |
287 | splx(s); |
288 | return (error); | |
289 | } | |
290 | ||
291 | /* | |
292 | * Read from an mpcc port. | |
293 | */ | |
294 | mpread(dev, uio) | |
295 | dev_t dev; | |
296 | struct uio *uio; | |
297 | { | |
298 | struct tty *tp; | |
299 | ||
300 | tp = &mp_tty[minor(dev)]; | |
301 | return ((*linesw[tp->t_line].l_read)(tp, uio)); | |
302 | } | |
303 | ||
304 | /* | |
305 | * Write to an mpcc port. | |
306 | */ | |
307 | mpwrite(dev, uio) | |
308 | dev_t dev; | |
309 | struct uio *uio; | |
310 | { | |
311 | struct tty *tp; | |
312 | ||
313 | tp = &mp_tty[minor(dev)]; | |
314 | return ((*linesw[tp->t_line].l_write)(tp, uio)); | |
315 | } | |
316 | ||
317 | /* | |
318 | * Ioctl for a mpcc port | |
319 | */ | |
320 | mpioctl(dev, cmd, data, flag) | |
321 | dev_t dev; | |
322 | caddr_t data; | |
323 | { | |
324 | register struct tty *tp; | |
325 | register struct mpsoftc *ms; | |
326 | register struct mpevent *ev; | |
327 | register struct mpport *mp; | |
328 | int s, port, error, unit; | |
329 | struct mblok *mb; | |
330 | ||
331 | unit = minor(dev); | |
332 | tp = &mp_tty[unit]; | |
333 | ms = &mp_softc[MPUNIT(unit)]; | |
334 | mb = ms->ms_mb; | |
255871c5 KB |
335 | port = MPPORT(unit); |
336 | mp = &mb->mb_port[port]; | |
337 | if (mp->mp_proto != MPPROTO_ASYNC) | |
338 | return(ENXIO); | |
d55465de SL |
339 | error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag); |
340 | if (error >= 0) | |
341 | return (error); | |
342 | error = ttioctl(tp, cmd, data, flag); | |
343 | if (error >= 0) { | |
344 | if (cmd == TIOCSETP || cmd == TIOCSETN || cmd == TIOCLBIS || | |
b532c831 | 345 | cmd == TIOCLBIC || cmd == TIOCLSET || cmd == TIOCSETC) { |
255871c5 KB |
346 | s = spl8(); |
347 | while (mp->mp_flags & MP_IOCTL) { | |
348 | sleep((caddr_t)&tp->t_canq, TTIPRI); | |
349 | if (mp->mp_proto != MPPROTO_ASYNC) { | |
350 | mp->mp_flags &= ~MP_IOCTL; | |
351 | splx(s); | |
352 | return(ENXIO); | |
353 | } | |
354 | } | |
d55465de SL |
355 | ev = mpparam(unit); |
356 | if (ev == 0) | |
357 | error = ENOBUFS; | |
255871c5 KB |
358 | else { |
359 | mp->mp_flags |= MP_IOCTL; | |
360 | mpcmd(ev, EVCMD_IOCTL, A_CHGALL, mb, port); | |
361 | } | |
362 | splx(s); | |
d55465de SL |
363 | } |
364 | return (error); | |
365 | } | |
366 | switch (cmd) { | |
367 | case TIOCSBRK: /* send break */ | |
368 | case TIOCCBRK: /* clear break */ | |
d55465de | 369 | s = spl8(); |
255871c5 KB |
370 | while (mp->mp_flags & MP_IOCTL) { |
371 | sleep((caddr_t)&tp->t_canq, TTIPRI); | |
372 | if (mp->mp_proto != MPPROTO_ASYNC) { | |
373 | mp->mp_flags &= ~MP_IOCTL; | |
374 | splx(s); | |
375 | return(ENXIO); | |
376 | } | |
377 | } | |
378 | ev = mp_getevent(mp, unit, 0); | |
379 | if (ev) { | |
380 | mp->mp_flags |= MP_IOCTL; | |
d55465de | 381 | mpcmd(ev, EVCMD_IOCTL, |
255871c5 KB |
382 | (cmd == TIOCSBRK ? A_BRKON : A_BRKOFF), mb, port); |
383 | } else | |
d55465de SL |
384 | error = ENOBUFS; |
385 | splx(s); | |
386 | break; | |
387 | case TIOCSDTR: /* set dtr control line */ | |
388 | break; | |
389 | case TIOCCDTR: /* clear dtr control line */ | |
390 | break; | |
391 | default: | |
392 | error = ENOTTY; | |
393 | break; | |
394 | } | |
395 | return (error); | |
396 | } | |
397 | ||
398 | struct mpevent * | |
399 | mpparam(unit) | |
400 | int unit; | |
401 | { | |
402 | register struct mpevent *ev; | |
403 | register struct mpport *mp; | |
404 | register struct tty *tp; | |
405 | struct mblok *mb; | |
406 | struct mpsoftc *ms; | |
407 | register struct asyncparam *asp; | |
408 | int port; | |
409 | ||
410 | ms = &mp_softc[MPUNIT(unit)]; | |
411 | mb = ms->ms_mb; | |
412 | port = MPPORT(unit); | |
413 | mp = &mb->mb_port[port]; | |
255871c5 | 414 | ev = mp_getevent(mp, unit, 0); /* XXX */ |
d55465de SL |
415 | if (ev == 0) |
416 | return (ev); | |
417 | tp = &mp_tty[unit]; | |
418 | /* YUCK */ | |
419 | asp = &ms->ms_async[port][mp->mp_on?mp->mp_on-1:MPINSET-1]; | |
b532c831 KB |
420 | asp->ap_xon = (u_char)tp->t_startc; |
421 | asp->ap_xoff = (u_char)tp->t_stopc; | |
422 | if ((tp->t_flags & RAW) || (tp->t_stopc == -1) || (tp->t_startc == -1)) | |
423 | asp->ap_xena = MPA_DIS; | |
424 | else | |
425 | asp->ap_xena = MPA_ENA; | |
2281df84 | 426 | asp->ap_xany = ((tp->t_flags & DECCTQ) ? MPA_DIS : MPA_ENA); |
d55465de SL |
427 | #ifdef notnow |
428 | if (tp->t_flags & (RAW|LITOUT|PASS8)) { | |
429 | #endif | |
430 | asp->ap_data = MPCHAR_8; | |
431 | asp->ap_parity = MPPAR_NONE; | |
432 | #ifdef notnow | |
433 | } else { | |
434 | asp->ap_data = MPCHAR_7; | |
435 | if ((tp->t_flags & (EVENP|ODDP)) == ODDP) | |
436 | asp->ap_parity = MPPAR_ODD; | |
437 | else | |
438 | asp->ap_parity = MPPAR_EVEN; | |
439 | } | |
440 | #endif | |
255871c5 KB |
441 | asp->ap_loop = MPA_DIS; /* disable loopback */ |
442 | asp->ap_rtimer = A_RCVTIM; /* default receive timer */ | |
d55465de SL |
443 | if (tp->t_ospeed == B110) |
444 | asp->ap_stop = MPSTOP_2; | |
445 | else | |
446 | asp->ap_stop = MPSTOP_1; | |
255871c5 KB |
447 | if (tp->t_ospeed == 0) { |
448 | tp->t_state |= TS_HUPCLS; | |
449 | setm(&asp->ap_modem, 0, DROP); | |
450 | seti(&asp->ap_intena, A_DCD); | |
451 | return (ev); | |
452 | } | |
d55465de SL |
453 | if (tp->t_ospeed == EXTA || tp->t_ospeed == EXTB) |
454 | asp->ap_baud = M19200; | |
455 | else | |
456 | asp->ap_baud = tp->t_ospeed; | |
d55465de SL |
457 | if (ms->ms_softCAR & (1<<port)) |
458 | setm(&asp->ap_modem, A_DTR, ASSERT); | |
459 | else | |
460 | setm(&asp->ap_modem, A_DTR, AUTO); | |
461 | seti(&asp->ap_intena, A_DCD); | |
462 | return (ev); | |
463 | } | |
464 | ||
465 | mpstart(tp) | |
466 | register struct tty *tp; | |
467 | { | |
468 | register struct mpevent *ev; | |
469 | register struct mpport *mp; | |
470 | struct mblok *mb; | |
471 | struct mpsoftc *ms; | |
472 | int port, unit, xcnt, n, s, i; | |
473 | struct hxmtl *hxp; | |
474 | struct clist outq; | |
475 | ||
476 | s = spl8(); | |
477 | unit = minor(tp->t_dev); | |
478 | ms = &mp_softc[MPUNIT(unit)]; | |
479 | mb = ms->ms_mb; | |
480 | port = MPPORT(unit); | |
481 | mp = &mb->mb_port[port]; | |
482 | hxp = &ms->ms_hxl[port]; | |
483 | xcnt = 0; | |
484 | outq = tp->t_outq; | |
485 | for (i = 0; i < MPXMIT; i++) { | |
486 | if (tp->t_state & (TS_TIMEOUT|TS_BUSY|TS_TTSTOP)) | |
487 | break; | |
488 | if (outq.c_cc <= TTLOWAT(tp)) { | |
489 | if (tp->t_state & TS_ASLEEP) { | |
490 | tp->t_state &= ~TS_ASLEEP; | |
491 | wakeup((caddr_t)&tp->t_outq); | |
492 | } | |
493 | if (tp->t_wsel) { | |
494 | selwakeup(tp->t_wsel, tp->t_state & TS_WCOLL); | |
495 | tp->t_wsel = 0; | |
496 | tp->t_state &= ~TS_WCOLL; | |
497 | } | |
498 | } | |
499 | if (outq.c_cc == 0) | |
500 | break; | |
501 | /* | |
502 | * If we're not currently busy outputting, | |
503 | * and there is data to be output, set up | |
504 | * port transmit structure to send to mpcc. | |
505 | */ | |
506 | if (tp->t_flags & (RAW|LITOUT)) | |
507 | n = ndqb(&outq, 0); | |
508 | else { | |
509 | n = ndqb(&outq, 0200); | |
510 | if (n == 0) { | |
255871c5 KB |
511 | if (xcnt > 0) |
512 | break; | |
d55465de SL |
513 | n = getc(&outq); |
514 | timeout(ttrstrt, (caddr_t)tp, (n&0177)+6); | |
515 | tp->t_state |= TS_TIMEOUT; | |
516 | break; | |
517 | } | |
518 | } | |
5db86c85 | 519 | hxp->dblock[i] = (caddr_t)kvtophys(outq.c_cf); |
d55465de SL |
520 | hxp->size[i] = n; |
521 | xcnt++; /* count of xmts to send */ | |
522 | ndadvance(&outq, n); | |
523 | } | |
524 | /* | |
525 | * If data to send, poke mpcc. | |
526 | */ | |
527 | if (xcnt) { | |
255871c5 | 528 | ev = mp_getevent(mp, unit, 0); |
d55465de SL |
529 | if (ev == 0) { |
530 | tp->t_state &= ~(TS_BUSY|TS_TIMEOUT); | |
531 | } else { | |
532 | tp->t_state |= TS_BUSY; | |
533 | ev->ev_count = xcnt; | |
534 | mpcmd(ev, EVCMD_WRITE, 0, mb, MPPORT(unit)); | |
535 | } | |
536 | } | |
537 | splx(s); | |
538 | } | |
539 | ||
540 | /* | |
541 | * Advance cc bytes from q but don't free memory. | |
542 | */ | |
543 | ndadvance(q, cc) | |
544 | register struct clist *q; | |
545 | register cc; | |
546 | { | |
547 | register struct cblock *bp; | |
548 | char *end; | |
549 | int rem, s; | |
550 | ||
551 | s = spltty(); | |
552 | if (q->c_cc <= 0) | |
553 | goto out; | |
554 | while (cc>0 && q->c_cc) { | |
555 | bp = (struct cblock *)((int)q->c_cf & ~CROUND); | |
556 | if ((int)bp == (((int)q->c_cl-1) & ~CROUND)) { | |
557 | end = q->c_cl; | |
558 | } else { | |
559 | end = (char *)((int)bp + sizeof (struct cblock)); | |
560 | } | |
561 | rem = end - q->c_cf; | |
562 | if (cc >= rem) { | |
563 | cc -= rem; | |
564 | q->c_cc -= rem; | |
565 | q->c_cf = bp->c_next->c_info; | |
566 | } else { | |
567 | q->c_cc -= cc; | |
568 | q->c_cf += cc; | |
569 | break; | |
570 | } | |
571 | } | |
572 | if (q->c_cc <= 0) { | |
573 | q->c_cf = q->c_cl = NULL; | |
574 | q->c_cc = 0; | |
575 | } | |
576 | out: | |
577 | splx(s); | |
578 | } | |
579 | ||
580 | /* | |
581 | * Stop output on a line, e.g. for ^S/^Q or output flush. | |
582 | */ | |
5db86c85 | 583 | /* ARGSUSED */ |
d55465de SL |
584 | mpstop(tp, rw) |
585 | register struct tty *tp; | |
586 | int rw; | |
587 | { | |
255871c5 KB |
588 | register struct mpport *mp; |
589 | register struct mpevent *ev; | |
590 | int unit = minor(tp->t_dev); | |
591 | int port; | |
592 | struct mblok *mb; | |
5db86c85 | 593 | int s; |
d55465de SL |
594 | |
595 | s = spl8(); | |
d55465de | 596 | if (tp->t_state & TS_BUSY) { |
255871c5 | 597 | if ((tp->t_state & TS_TTSTOP) == 0) { |
d55465de | 598 | tp->t_state |= TS_FLUSH; |
255871c5 KB |
599 | port = MPPORT(unit); |
600 | mb = mp_softc[MPUNIT(unit)].ms_mb; | |
601 | mp = &mb->mb_port[port]; | |
602 | ev = mp_getevent(mp, unit, 0); | |
603 | if (ev == 0) { | |
604 | splx(s); | |
605 | return; | |
606 | } | |
607 | mpcmd(ev, EVCMD_WRITE, A_FLUSH, mb, port); | |
608 | } | |
d55465de SL |
609 | } |
610 | splx(s); | |
611 | } | |
612 | ||
613 | /* | |
614 | * Initialize an async port's MPCC state. | |
615 | */ | |
616 | mpportinit(ms, mp, port) | |
617 | register struct mpsoftc *ms; | |
618 | register struct mpport *mp; | |
619 | int port; | |
620 | { | |
621 | register struct mpevent *ev; | |
622 | register int i; | |
623 | caddr_t ptr; | |
624 | ||
625 | mp->mp_on = mp->mp_off = 0; | |
626 | mp->mp_nextrcv = 0; | |
627 | mp->mp_flags = 0; | |
628 | ev = &mp->mp_recvq[0]; | |
629 | for (i = 0; ev < &mp->mp_recvq[MPINSET]; ev++, i++) { | |
630 | ev->ev_status = EVSTATUS_FREE; | |
631 | ev->ev_cmd = 0; | |
632 | ev->ev_opts = 0; | |
633 | ev->ev_error = 0; | |
634 | ev->ev_flags = 0; | |
635 | ev->ev_count = 0; | |
5db86c85 MK |
636 | ev->ev_un.hxl = (struct hxmtl *) kvtophys(&ms->ms_hxl[port]); |
637 | ev->ev_params = (caddr_t) kvtophys(&ms->ms_async[port][i]); | |
d55465de SL |
638 | } |
639 | ev = &mp->mp_sendq[0]; | |
640 | for (i = 0; ev < &mp->mp_sendq[MPOUTSET]; ev++, i++) { | |
641 | /* init so that L2 can't send any events */ | |
642 | /* to host until open has completed */ | |
643 | ev->ev_status = EVSTATUS_FREE; | |
644 | ev->ev_cmd = 0; | |
255871c5 | 645 | ev->ev_opts = 0; |
d55465de SL |
646 | ev->ev_error = 0; |
647 | ev->ev_flags = 0; | |
648 | ev->ev_count = 0; | |
649 | ptr = (caddr_t) &ms->ms_cbuf[port][i][0]; | |
5db86c85 MK |
650 | ev->ev_un.rcvblk = (u_char *)kvtophys(ptr); |
651 | ev->ev_params = (caddr_t) kvtophys(ptr); | |
d55465de SL |
652 | } |
653 | return (0); | |
654 | } | |
655 | ||
656 | /* | |
657 | * Send an event to an mpcc. | |
658 | */ | |
659 | mpcmd(ev, cmd, flags, mb, port) | |
660 | register struct mpevent *ev; | |
661 | struct mblok *mb; | |
662 | { | |
663 | int s; | |
664 | ||
665 | s = spl8(); | |
666 | /* move host values to inbound entry */ | |
667 | ev->ev_cmd = cmd; | |
668 | ev->ev_opts = flags; | |
669 | /* show event ready for mpcc */ | |
670 | ev->ev_status = EVSTATUS_GO; | |
671 | mpintmpcc(mb, port); | |
672 | splx(s); | |
673 | } | |
674 | ||
675 | /* | |
676 | * Return the next available event entry for the indicated port. | |
677 | */ | |
678 | struct mpevent * | |
255871c5 | 679 | mp_getevent(mp, unit, cls_req) |
d55465de SL |
680 | register struct mpport *mp; |
681 | int unit; | |
255871c5 | 682 | int cls_req; |
d55465de SL |
683 | { |
684 | register struct mpevent *ev; | |
685 | int i, s; | |
686 | ||
687 | s = spl8(); | |
688 | ev = &mp->mp_recvq[mp->mp_on]; | |
689 | if (ev->ev_status != EVSTATUS_FREE) | |
690 | goto bad; | |
691 | /* | |
692 | * If not a close request, verify one extra | |
693 | * event is available for closing the port. | |
694 | */ | |
255871c5 | 695 | if (!cls_req) { |
d55465de SL |
696 | if ((i = mp->mp_on + 1) >= MPINSET) |
697 | i = 0; | |
698 | if (mp->mp_recvq[i].ev_status != EVSTATUS_FREE) | |
699 | goto bad; | |
700 | } | |
701 | /* init inbound fields marking this entry as busy */ | |
255871c5 KB |
702 | ev->ev_cmd = 0; |
703 | ev->ev_opts = 0; | |
d55465de SL |
704 | ev->ev_error = 0; |
705 | ev->ev_flags = 0; | |
706 | ev->ev_count = 0; | |
707 | ev->ev_status = EVSTATUS_BUSY; | |
708 | /* adjust pointer to next available inbound entry */ | |
709 | adjptr(mp->mp_on, MPINSET); | |
710 | splx(s); | |
711 | return (ev); | |
712 | bad: | |
713 | splx(s); | |
255871c5 KB |
714 | log(LOG_ERR, "mp%d: port%d, out of events\n", |
715 | MPUNIT(unit), MPPORT(unit)); | |
d55465de SL |
716 | return ((struct mpevent *)0); |
717 | } | |
718 | ||
719 | mpmodem(unit, flag) | |
720 | int unit, flag; | |
721 | { | |
722 | struct mpsoftc *ms = &mp_softc[MPUNIT(unit)]; | |
723 | int port = MPPORT(unit); | |
724 | register struct mpport *mp; | |
d55465de SL |
725 | register struct asyncparam *asp; |
726 | ||
727 | mp = &ms->ms_mb->mb_port[port]; | |
d55465de SL |
728 | asp = &ms->ms_async[port][mp->mp_on?mp->mp_on-1:MPINSET-1]; |
729 | if (flag == MMOD_ON) { | |
730 | if (ms->ms_softCAR & (1 << port)) | |
731 | setm(&asp->ap_modem, A_DTR, ASSERT); | |
732 | else | |
733 | setm(&asp->ap_modem, A_DTR, AUTO); | |
734 | seti(&asp->ap_intena, A_DCD); | |
735 | } else { | |
736 | setm(&asp->ap_modem, 0, DROP); | |
737 | seti(&asp->ap_intena, 0); | |
738 | } | |
d55465de SL |
739 | } |
740 | ||
741 | /* | |
742 | * Set up the modem control structure according to mask. | |
743 | * Each set bit in the mask means assert the corresponding | |
744 | * modem control line, otherwise, it will be dropped. | |
745 | * RTS is special since it can either be asserted, dropped | |
746 | * or put in auto mode for auto modem control. | |
747 | */ | |
748 | static | |
749 | setm(mc, mask, rts) | |
750 | register struct mdmctl *mc; | |
751 | register int mask; | |
752 | { | |
753 | ||
754 | mc->mc_rngdsr = (mask & A_RNGDSR) ? ASSERT : DROP; | |
755 | mc->mc_rate = (mask & A_RATE) ? ASSERT : DROP; | |
756 | mc->mc_dcd = (mask & A_DCD) ? ASSERT : DROP; | |
757 | mc->mc_sectx = (mask & A_SECTX) ? ASSERT : DROP; | |
758 | mc->mc_cts = (mask & A_CTS) ? ASSERT : DROP; | |
759 | mc->mc_secrx = (mask & A_SECRX) ? ASSERT : DROP; | |
760 | mc->mc_dtr = (mask & A_DTR) ? ASSERT : DROP; | |
761 | mc->mc_rts = rts; | |
762 | } | |
763 | ||
764 | /* | |
765 | * Set up the status change enable field from mask. | |
766 | * When a signal is enabled in this structure and | |
767 | * and a change in state on a corresponding modem | |
768 | * control line occurs, a status change event will | |
769 | * be delivered to the host. | |
770 | */ | |
771 | static | |
772 | seti(mc, mask) | |
773 | register struct mdmctl *mc; | |
774 | register int mask; | |
775 | { | |
776 | ||
777 | mc->mc_rngdsr = (mask & A_RNGDSR) ? MDM_ON : MDM_OFF; | |
778 | mc->mc_rate = (mask & A_RATE) ? MDM_ON : MDM_OFF; | |
779 | mc->mc_dcd = (mask & A_DCD) ? MDM_ON : MDM_OFF; | |
780 | mc->mc_sectx = (mask & A_SECTX) ? MDM_ON : MDM_OFF; | |
781 | mc->mc_cts = (mask & A_CTS) ? MDM_ON : MDM_OFF; | |
782 | mc->mc_secrx = (mask & A_SECRX) ? MDM_ON : MDM_OFF; | |
783 | mc->mc_dtr = (mask & A_DTR) ? MDM_ON : MDM_OFF; | |
784 | mc->mc_rts = (mask & A_RTS) ? MDM_ON : MDM_OFF; | |
785 | } | |
786 | ||
787 | mpcleanport(mb, port) | |
788 | struct mblok *mb; | |
789 | int port; | |
790 | { | |
791 | register struct mpport *mp; | |
792 | register struct tty *tp; | |
793 | ||
794 | mp = &mb->mb_port[port]; | |
795 | if (mp->mp_proto == MPPROTO_ASYNC) { | |
796 | mp->mp_flags = MP_REMBSY; | |
5db86c85 | 797 | /* signal loss of carrier and close */ |
d55465de | 798 | tp = &mp_tty[mb->mb_unit*MPCHUNK+port]; |
d55465de | 799 | ttyflush(tp, FREAD|FWRITE); |
5db86c85 | 800 | (void) (*linesw[tp->t_line].l_modem)(tp, 0); |
d55465de SL |
801 | } |
802 | } | |
803 | ||
804 | mpclean(mb, port) | |
805 | register struct mblok *mb; | |
806 | int port; | |
807 | { | |
808 | register struct mpport *mp; | |
809 | register struct mpevent *ev; | |
810 | register int i; | |
5db86c85 | 811 | u_char list[2]; |
d55465de SL |
812 | int unit; |
813 | ||
814 | mp = &mb->mb_port[port]; | |
815 | unit = mb->mb_unit; | |
816 | for (i = mp->mp_off; i != mp->mp_on; i = (i+1 % MPINSET)) { | |
817 | ev = &mp->mp_recvq[i]; | |
818 | ev->ev_error = ENXIO; | |
819 | ev->ev_status = EVSTATUS_DONE; | |
820 | } | |
821 | list[0] = port, list[1] = MPPORT_EOL; | |
822 | mpxintr(unit, list); | |
823 | mprintr(unit, list); | |
824 | /* Clear async for port */ | |
825 | mp->mp_proto = MPPROTO_UNUSED; | |
826 | mp->mp_flags = 0; | |
827 | mp->mp_on = 0; | |
828 | mp->mp_off = 0; | |
829 | mp->mp_nextrcv = 0; | |
830 | ||
831 | mp_tty[unit*MPCHUNK + port].t_state = 0; | |
832 | for (ev = &mp->mp_sendq[0]; ev < &mp->mp_sendq[MPOUTSET]; ev++) { | |
833 | ev->ev_status = EVSTATUS_FREE; | |
834 | ev->ev_cmd = 0; | |
835 | ev->ev_error = 0; | |
836 | ev->ev_un.rcvblk = 0; | |
837 | ev->ev_params = 0; | |
838 | } | |
839 | for (ev = &mp->mp_recvq[0]; ev < &mp->mp_recvq[MPINSET]; ev++) { | |
840 | ev->ev_status = EVSTATUS_FREE; | |
841 | ev->ev_cmd = 0; | |
842 | ev->ev_error = 0; | |
843 | ev->ev_params = 0; | |
844 | } | |
845 | } | |
846 | ||
847 | /* | |
848 | * MPCC interrupt handler. | |
849 | */ | |
850 | mpintr(mpcc) | |
851 | int mpcc; | |
852 | { | |
853 | register struct mblok *mb; | |
854 | register struct his *his; | |
d55465de SL |
855 | |
856 | mb = mp_softc[mpcc].ms_mb; | |
857 | if (mb == 0) { | |
858 | printf("mp%d: stray interrupt\n", mpcc); | |
859 | return; | |
860 | } | |
861 | his = &mb->mb_hostint; | |
862 | his->semaphore &= ~MPSEMA_AVAILABLE; | |
863 | /* | |
864 | * Check for events to be processed. | |
865 | */ | |
866 | if (his->proto[MPPROTO_ASYNC].outbdone[0] != MPPORT_EOL) | |
867 | mprintr(mpcc, his->proto[MPPROTO_ASYNC].outbdone); | |
868 | if (his->proto[MPPROTO_ASYNC].inbdone[0] != MPPORT_EOL) | |
869 | mpxintr(mpcc, his->proto[MPPROTO_ASYNC].inbdone); | |
870 | if (mb->mb_harderr || mb->mb_softerr) | |
871 | mperror(mb, mpcc); | |
872 | his->semaphore |= MPSEMA_AVAILABLE; | |
873 | } | |
874 | ||
875 | /* | |
876 | * Handler for processing completion of transmitted events. | |
877 | */ | |
878 | mpxintr(unit, list) | |
5db86c85 | 879 | register u_char *list; |
d55465de SL |
880 | { |
881 | register struct mpport *mp; | |
882 | register struct mpevent *ev; | |
883 | register struct mblok *mb; | |
884 | register struct tty *tp; | |
885 | register struct asyncparam *ap; | |
886 | struct mpsoftc *ms; | |
887 | int port, i, j; | |
255871c5 | 888 | # define nextevent(mp) &mp->mp_recvq[mp->mp_off] |
d55465de SL |
889 | |
890 | ms = &mp_softc[unit]; | |
891 | mb = mp_softc[unit].ms_mb; | |
892 | for (j = 0; j < MPMAXPORT && ((port = *list++) != MPPORT_EOL); j++) { | |
893 | /* | |
894 | * Process each completed entry in the inbound queue. | |
895 | */ | |
896 | mp = &mb->mb_port[port]; | |
897 | tp = &mp_tty[unit*MPCHUNK + port]; | |
d55465de | 898 | ev = nextevent(mp); |
255871c5 | 899 | for (; ev->ev_status & EVSTATUS_DONE; ev = nextevent(mp)) { |
d55465de SL |
900 | /* YUCK */ |
901 | ap = &ms->ms_async[port][mp->mp_off]; | |
5db86c85 | 902 | mppurge((caddr_t)ap, (int)sizeof (*ap)); |
d55465de SL |
903 | switch (ev->ev_cmd) { |
904 | case EVCMD_OPEN: | |
905 | /* | |
906 | * Open completion, start all reads and | |
907 | * assert modem status information. | |
908 | */ | |
909 | for (i = 0; i < MPOUTSET; i++) | |
910 | mp->mp_sendq[i].ev_status = EVSTATUS_GO; | |
911 | (*linesw[tp->t_line].l_modem) | |
912 | (tp, ap->ap_modem.mc_dcd == ASSERT); | |
255871c5 KB |
913 | mp_freein(ev); |
914 | adjptr(mp->mp_off, MPINSET); | |
915 | mp->mp_proto = MPPROTO_ASYNC; /* XXX */ | |
916 | wakeup((caddr_t)&tp->t_canq); | |
d55465de SL |
917 | break; |
918 | case EVCMD_CLOSE: | |
919 | /* | |
920 | * Close completion, flush all pending | |
921 | * transmissions, free resources, and | |
922 | * cleanup mpcc port state. | |
923 | */ | |
924 | for (i = 0; i < MPOUTSET; i++) { | |
925 | mp->mp_sendq[i].ev_status = | |
926 | EVSTATUS_FREE; | |
927 | mp->mp_sendq[i].ev_un.rcvblk = 0; | |
928 | mp->mp_sendq[i].ev_params = 0; | |
929 | } | |
255871c5 KB |
930 | mp_freein(ev); |
931 | adjptr(mp->mp_off, MPINSET); | |
932 | tp->t_state &= ~(TS_CARR_ON|TS_BUSY|TS_FLUSH); | |
d55465de SL |
933 | mp->mp_on = mp->mp_off = mp->mp_nextrcv = 0; |
934 | mp->mp_flags &= ~MP_PROGRESS; | |
935 | mp->mp_proto = MPPROTO_UNUSED; | |
30a58bac | 936 | wakeup((caddr_t)&tp->t_canq); |
255871c5 | 937 | break; |
d55465de | 938 | case EVCMD_IOCTL: |
255871c5 KB |
939 | mp_freein(ev); |
940 | adjptr(mp->mp_off, MPINSET); | |
941 | mp->mp_flags &= ~MP_IOCTL; | |
942 | wakeup((caddr_t)&tp->t_canq); | |
d55465de SL |
943 | break; |
944 | case EVCMD_WRITE: | |
945 | /* | |
946 | * Transmission completed, update tty | |
947 | * state and restart output. | |
948 | */ | |
255871c5 KB |
949 | if (ev->ev_opts != A_FLUSH) { |
950 | tp->t_state &= ~TS_BUSY; | |
951 | if (tp->t_state & TS_FLUSH) | |
952 | tp->t_state &= ~TS_FLUSH; | |
953 | else { | |
954 | register int cc = 0, n; | |
955 | struct hxmtl *hxp; | |
d55465de | 956 | |
255871c5 KB |
957 | hxp = &ms->ms_hxl[port]; |
958 | for (n=0;n < ev->ev_count; n++) | |
959 | cc += hxp->size[n]; | |
960 | ndflush(&tp->t_outq, cc); | |
961 | } | |
d55465de SL |
962 | } |
963 | switch (ev->ev_error) { | |
964 | case A_SIZERR: /*# error in xmt data size */ | |
965 | mplog(unit, port, A_XSIZE, 0); | |
966 | break; | |
967 | case A_NXBERR: /*# no more xmt evt buffers */ | |
968 | mplog(unit, port, A_NOXBUF, 0); | |
969 | break; | |
970 | } | |
255871c5 KB |
971 | mp_freein(ev); |
972 | adjptr(mp->mp_off, MPINSET); | |
d55465de SL |
973 | mpstart(tp); |
974 | break; | |
975 | default: | |
5db86c85 | 976 | mplog(unit, port, A_INVCMD, (int)ev->ev_cmd); |
255871c5 KB |
977 | mp_freein(ev); |
978 | adjptr(mp->mp_off, MPINSET); | |
d55465de SL |
979 | break; |
980 | } | |
d55465de | 981 | } |
d55465de | 982 | } |
255871c5 KB |
983 | #undef nextevent |
984 | } | |
985 | ||
986 | mp_freein(ev) | |
987 | register struct mpevent *ev; | |
988 | { | |
989 | /* re-init all values in this entry */ | |
990 | ev->ev_cmd = 0; | |
991 | ev->ev_opts = 0; | |
992 | ev->ev_error = 0; | |
993 | ev->ev_flags = 0; | |
994 | ev->ev_count = 0; | |
995 | /* show this entry is available for use */ | |
996 | ev->ev_status = EVSTATUS_FREE; | |
d55465de SL |
997 | } |
998 | ||
999 | /* | |
1000 | * Handler for processing received events. | |
1001 | */ | |
1002 | mprintr(unit, list) | |
5db86c85 | 1003 | u_char *list; |
d55465de SL |
1004 | { |
1005 | register struct tty *tp; | |
1006 | register struct mpport *mp; | |
1007 | register struct mpevent *ev; | |
1008 | struct mblok *mb; | |
1009 | register int cc; | |
1010 | register char *cp; | |
1011 | struct mpsoftc *ms; | |
1012 | caddr_t ptr; | |
1013 | char *rcverr; | |
1014 | int port, i; | |
1015 | ||
1016 | ms = &mp_softc[unit]; | |
1017 | mb = mp_softc[unit].ms_mb; | |
1018 | for (i = 0; i < MPMAXPORT && (port = *list++) != MPPORT_EOL; i++) { | |
1019 | tp = &mp_tty[unit*MPCHUNK + port]; | |
1020 | mp = &mb->mb_port[port]; | |
1021 | ev = &mp->mp_sendq[mp->mp_nextrcv]; | |
1022 | while (ev->ev_status & EVSTATUS_DONE) { | |
255871c5 KB |
1023 | switch(ev->ev_cmd) { |
1024 | case EVCMD_STATUS: | |
d55465de SL |
1025 | /* |
1026 | * Status change, look for carrier changes. | |
1027 | */ | |
255871c5 KB |
1028 | switch(ev->ev_opts) { |
1029 | case DCDASRT: | |
1030 | (*linesw[tp->t_line].l_modem)(tp, 1); | |
1031 | wakeup((caddr_t)&tp->t_canq); | |
1032 | break; | |
1033 | case DCDDROP: | |
1034 | (*linesw[tp->t_line].l_modem)(tp, 0); | |
1035 | wakeup((caddr_t)&tp->t_canq); | |
1036 | break; | |
1037 | case NORBUF: | |
1038 | case NOEBUF: | |
1039 | mplog(unit, port, | |
1040 | "out of receive events", 0); | |
1041 | break; | |
1042 | default: | |
d55465de SL |
1043 | mplog(unit, port, |
1044 | "unexpect status command", | |
5db86c85 | 1045 | (int)ev->ev_opts); |
255871c5 KB |
1046 | break; |
1047 | } | |
d55465de | 1048 | break; |
255871c5 KB |
1049 | case EVCMD_READ: |
1050 | /* | |
1051 | * Process received data. | |
1052 | */ | |
1053 | if ((tp->t_state & TS_ISOPEN) == 0) { | |
1054 | wakeup((caddr_t)&tp->t_rawq); | |
1055 | break; | |
1056 | } | |
1057 | if ((cc = ev->ev_count) == 0) | |
1058 | break; | |
1059 | cp = ms->ms_cbuf[port][mp->mp_nextrcv]; | |
1060 | mppurge(cp, CBSIZE); | |
1061 | while (cc-- > 0) { | |
1062 | /* | |
1063 | * A null character is inserted, | |
1064 | * potentially when a break or framing | |
1065 | * error occurs. If we're not in raw | |
1066 | * mode, substitute the interrupt | |
1067 | * character. | |
1068 | */ | |
1069 | if (*cp == 0 && | |
1070 | (ev->ev_error == BRKASRT || | |
1071 | ev->ev_error == FRAMERR)) | |
1072 | if ((tp->t_flags&RAW) == 0) | |
1073 | *cp = tp->t_intrc; | |
1074 | (*linesw[tp->t_line].l_rint)(*cp++, tp); | |
1075 | } | |
1076 | /* setup for next read */ | |
1077 | ptr = (caddr_t)&mp_softc[unit].ms_cbuf[port][mp->mp_nextrcv][0]; | |
1078 | ev->ev_un.rcvblk = (u_char *)kvtophys(ptr); | |
1079 | ev->ev_params = (caddr_t) kvtophys(ptr); | |
1080 | switch(ev->ev_error) { | |
1081 | case RCVDTA: | |
1082 | /* Normal (good) rcv data do not | |
1083 | * report the following they are | |
1084 | * "normal" errors | |
1085 | */ | |
1086 | case FRAMERR: | |
1087 | /* frame error */ | |
1088 | case BRKASRT: | |
1089 | /* Break condition */ | |
1090 | case PARERR: | |
1091 | /* parity error */ | |
1092 | rcverr = (char *)0; | |
1093 | break; | |
1094 | case OVRNERR: | |
1095 | /* Overrun error */ | |
1096 | rcverr = "overrun error"; | |
1097 | break; | |
1098 | case OVFERR: | |
1099 | /* Overflow error */ | |
1100 | rcverr = "overflow error"; | |
1101 | break; | |
1102 | default: | |
1103 | rcverr = "undefined rcv error"; | |
1104 | break; | |
1105 | } | |
1106 | if (rcverr != (char *)0) | |
1107 | mplog(unit, port, rcverr, | |
1108 | (int)ev->ev_error); | |
d55465de SL |
1109 | break; |
1110 | default: | |
255871c5 KB |
1111 | mplog(unit, port, "unexpected command", |
1112 | (int)ev->ev_cmd); | |
1113 | break; | |
d55465de | 1114 | } |
d55465de SL |
1115 | ev->ev_cmd = 0; |
1116 | ev->ev_opts = 0; | |
1117 | ev->ev_error = 0; | |
1118 | ev->ev_flags = 0; | |
255871c5 | 1119 | ev->ev_count = 0; |
d55465de SL |
1120 | ev->ev_status = EVSTATUS_GO; /* start next read */ |
1121 | adjptr(mp->mp_nextrcv, MPOUTSET); | |
1122 | ev = &mp->mp_sendq[mp->mp_nextrcv]; | |
1123 | } | |
1124 | } | |
1125 | } | |
1126 | ||
1127 | /* | |
1128 | * Log an mpcc diagnostic. | |
1129 | */ | |
1130 | mplog(unit, port, cp, flags) | |
1131 | char *cp; | |
1132 | { | |
1133 | ||
1134 | if (flags) | |
1135 | log(LOG_ERR, "mp%d: port%d, %s (%d)\n", | |
1136 | unit, port, cp, flags); | |
1137 | else | |
1138 | log(LOG_ERR, "mp%d: port%d, %s\n", unit, port, cp); | |
1139 | } | |
1140 | ||
1141 | int MPHOSTINT = 1; | |
1142 | ||
1143 | mptimeint(mb) | |
1144 | register struct mblok *mb; | |
1145 | { | |
1146 | ||
1147 | mb->mb_mpintcnt = 0; | |
1148 | mb->mb_mpintclk = (caddr_t)0; | |
1149 | *(u_short *)mpinfo[mb->mb_unit]->ui_addr = 2; | |
1150 | } | |
1151 | ||
1152 | /* | |
1153 | * Interupt mpcc | |
1154 | */ | |
1155 | mpintmpcc(mb, port) | |
1156 | register struct mblok *mb; | |
d55465de SL |
1157 | { |
1158 | ||
1159 | mb->mb_intr[port] |= MPSEMA_WORK; | |
1160 | if (++mb->mb_mpintcnt == MPHOSTINT) { | |
1161 | mb->mb_mpintcnt = 0; | |
1162 | *(u_short *)mpinfo[mb->mb_unit]->ui_addr = 2; | |
1163 | if (mb->mb_mpintclk) { | |
5db86c85 | 1164 | untimeout(mptimeint, (caddr_t)mb); |
d55465de SL |
1165 | mb->mb_mpintclk = 0; |
1166 | } | |
1167 | } else { | |
1168 | if (mb->mb_mpintclk == 0) { | |
5db86c85 | 1169 | timeout(mptimeint, (caddr_t)mb, 4); |
d55465de SL |
1170 | mb->mb_mpintclk = (caddr_t)1; |
1171 | } | |
1172 | } | |
1173 | } | |
1174 | ||
1175 | static char *mpherrmsg[] = { | |
1176 | "", | |
1177 | "Bus error", /* MPBUSERR */ | |
1178 | "Address error", /* ADDRERR */ | |
1179 | "Undefined ecc interrupt", /* UNDECC */ | |
1180 | "Undefined interrupt", /* UNDINT */ | |
1181 | "Power failure occurred", /* PWRFL */ | |
1182 | "Stray transmit done interrupt", /* NOXENTRY */ | |
1183 | "Two fast timers on one port", /* TWOFTMRS */ | |
1184 | "Interrupt queue full", /* INTQFULL */ | |
1185 | "Interrupt queue ack error", /* INTQERR */ | |
1186 | "Uncorrectable dma parity error", /* CBPERR */ | |
1187 | "32 port ACAP failed power up", /* ACPDEAD */ | |
1188 | }; | |
1189 | #define NHERRS (sizeof (mpherrmsg) / sizeof (mpherrmsg[0])) | |
1190 | ||
1191 | mperror(mb, unit) | |
1192 | register struct mblok *mb; | |
1193 | int unit; | |
1194 | { | |
1195 | register char *cp; | |
1196 | register int i; | |
1197 | ||
1198 | if (mb->mb_softerr) { | |
1199 | switch (mb->mb_softerr) { | |
1200 | case DMAPERR: /* dma parity error */ | |
1201 | cp = "dma parity error"; | |
1202 | break; | |
1203 | case ECCERR: | |
1204 | cp = "local memory ecc error"; | |
1205 | break; | |
1206 | default: | |
1207 | cp = "unknown error"; | |
1208 | break; | |
1209 | } | |
1210 | log(LOG_ERR, "mp%d: soft error, %s", unit, cp); | |
1211 | mb->mb_softerr = 0; | |
1212 | } | |
1213 | if (mb->mb_harderr) { | |
1214 | if (mb->mb_harderr < NHERRS) | |
1215 | cp = mpherrmsg[mb->mb_harderr]; | |
1216 | else | |
1217 | cp = "unknown error"; | |
1218 | log(LOG_ERR, "mp%d: hard error, %s", unit, cp); | |
1219 | if (mb->mb_status == MP_OPOPEN) { | |
1220 | for (i = 0; i < MPMAXPORT; i++) { | |
1221 | mpcleanport(mb, i); | |
1222 | mb->mb_proto[i] = MPPROTO_UNUSED; | |
1223 | } | |
1224 | } | |
1225 | mb->mb_harderr = 0; | |
1226 | mb->mb_status = 0; | |
1227 | } | |
1228 | } | |
1229 | ||
1230 | mppurge(addr, cc) | |
1231 | register caddr_t addr; | |
1232 | register int cc; | |
1233 | { | |
1234 | ||
1235 | for (; cc >= 0; addr += NBPG, cc -= NBPG) | |
1236 | mtpr(P1DC, addr); | |
1237 | } | |
1238 | ||
1239 | /* | |
1240 | * MPCC Download Pseudo-device. | |
1241 | */ | |
1242 | char mpdlbuf[MPDLBUFSIZE]; | |
1243 | int mpdlbusy; /* interlock on download buffer */ | |
1244 | int mpdlerr; | |
1245 | ||
1246 | mpdlopen(dev) | |
1247 | dev_t dev; | |
1248 | { | |
1249 | int unit, mpu; | |
1250 | struct vba_device *vi; | |
1251 | ||
1252 | unit = minor(dev); | |
1253 | mpu = MPUNIT(unit); | |
1254 | if (mpu >= NMP || (vi = mpinfo[mpu]) == 0 || vi->ui_alive == 0) | |
1255 | return (ENODEV); | |
1256 | return (0); | |
1257 | } | |
1258 | ||
1259 | mpdlwrite(dev, uio) | |
1260 | dev_t dev; | |
1261 | struct uio *uio; | |
1262 | { | |
1263 | register struct mpsoftc *ms = &mp_softc[MPUNIT(minor(dev))]; | |
1264 | register struct mpdl *dl; | |
1265 | int error; | |
1266 | ||
1267 | if (ms->ms_mb == 0 || ms->ms_mb->mb_status != MP_DLOPEN) | |
1268 | return (EFAULT); | |
1269 | dl = &ms->ms_mb->mb_dl; | |
1270 | dl->mpdl_count = uio->uio_iov->iov_len; | |
5db86c85 MK |
1271 | dl->mpdl_data = (caddr_t) kvtophys(mpdlbuf); |
1272 | if (error = uiomove(mpdlbuf, (int)dl->mpdl_count, UIO_WRITE, uio)) | |
d55465de SL |
1273 | return (error); |
1274 | uio->uio_resid -= dl->mpdl_count; /* set up return from write */ | |
1275 | dl->mpdl_cmd = MPDLCMD_NORMAL; | |
1276 | error = mpdlwait(dl); | |
1277 | return (error); | |
1278 | } | |
1279 | ||
1280 | mpdlclose(dev) | |
1281 | dev_t dev; | |
1282 | { | |
1283 | register struct mblok *mb = mp_softc[MPUNIT(minor(dev))].ms_mb; | |
d55465de SL |
1284 | |
1285 | if (mb == 0 || mb->mb_status != MP_DLDONE) { | |
1286 | mpbogus.status = 0; | |
1287 | if (mpbogus.mb == mpbogus.mbloks[MPUNIT(minor(dev))]) | |
1288 | mpdlbusy--; | |
1289 | return (EEXIST); | |
1290 | } | |
1291 | mb->mb_status = MP_OPOPEN; | |
1292 | mpbogus.status = 0; | |
1293 | /* set to dead, for board handshake */ | |
1294 | mb->mb_hostint.imok = MPIMOK_DEAD; | |
1295 | return (0); | |
1296 | } | |
1297 | ||
1298 | int mpdltimeout(); | |
1299 | ||
5db86c85 | 1300 | /* ARGSUSED */ |
d55465de SL |
1301 | mpdlioctl(dev, cmd, data, flag) |
1302 | dev_t dev; | |
1303 | caddr_t data; | |
1304 | { | |
1305 | register struct mblok *mb; | |
1306 | register struct mpdl *dl; | |
5db86c85 | 1307 | int unit, error, s, i; |
d55465de SL |
1308 | |
1309 | mb = mp_softc[unit=MPUNIT(minor(dev))].ms_mb; | |
1310 | if (mb == 0) | |
1311 | return (EEXIST); | |
1312 | dl = &mb->mb_dl; | |
1313 | error = 0; | |
1314 | switch (cmd) { | |
1315 | case MPIOPORTMAP: | |
1316 | bcopy(data, (caddr_t)mb->mb_proto, sizeof (mb->mb_proto)); | |
1317 | break; | |
1318 | case MPIOHILO: | |
1319 | bcopy(data, (caddr_t)&mb->mb_hiport, 2*(sizeof(mb->mb_hiport))); | |
1320 | break; | |
1321 | case MPIOENDDL: | |
1322 | dl->mpdl_count = 0; | |
1323 | dl->mpdl_data = 0; | |
1324 | dl->mpdl_cmd = MPIOENDDL&IOCPARM_MASK; | |
1325 | error = mpdlwait(dl); | |
1326 | mpccinit(unit); | |
1327 | mb->mb_status = MP_DLDONE; | |
1328 | mpdlbusy--; | |
1329 | break; | |
1330 | case MPIOENDCODE: | |
1331 | dl->mpdl_count = 0; | |
1332 | dl->mpdl_data = 0; | |
1333 | dl->mpdl_cmd = MPIOENDCODE&IOCPARM_MASK; | |
1334 | error = mpdlwait(dl); | |
1335 | break; | |
1336 | case MPIOASYNCNF: | |
1337 | bcopy(data, mpdlbuf, sizeof (struct abdcf)); | |
5db86c85 | 1338 | dl->mpdl_data = (caddr_t) kvtophys(mpdlbuf); |
d55465de SL |
1339 | dl->mpdl_count = sizeof (struct abdcf); |
1340 | dl->mpdl_cmd = MPIOASYNCNF&IOCPARM_MASK; | |
1341 | error = mpdlwait(dl); | |
1342 | break; | |
1343 | case MPIOSTARTDL: | |
1344 | while (mpdlbusy) | |
1345 | sleep((caddr_t)&mpdlbusy, PZERO+1); | |
1346 | mpdlbusy++; | |
1347 | /* initialize the downloading interface */ | |
1348 | mpbogus.magic = MPMAGIC; | |
1349 | mpbogus.mb = mpbogus.mbloks[unit]; | |
1350 | mpbogus.status = 1; | |
1351 | dl->mpdl_status = EVSTATUS_FREE; | |
1352 | dl->mpdl_count = 0; | |
1353 | dl->mpdl_cmd = 0; | |
1354 | dl->mpdl_data = (char *) 0; | |
1355 | mpdlerr = 0; | |
1356 | mb->mb_magic = MPMAGIC; | |
1357 | mb->mb_ivec = mp_softc[unit].ms_ivec+1; /* download vector */ | |
1358 | mb->mb_status = MP_DLPEND; | |
1359 | mb->mb_diagswitch[0] = 'A'; | |
1360 | mb->mb_diagswitch[1] = 'P'; | |
1361 | s = spl8(); | |
1362 | *(u_short *)mpinfo[unit]->ui_addr = 2; | |
5db86c85 | 1363 | timeout(mpdltimeout, (caddr_t)mb, 30*hz); |
d55465de SL |
1364 | sleep((caddr_t)&mb->mb_status, PZERO+1); |
1365 | splx(s); | |
1366 | if (mb->mb_status == MP_DLOPEN) { | |
5db86c85 | 1367 | untimeout(mpdltimeout, (caddr_t)mb); |
d55465de SL |
1368 | } else if (mb->mb_status == MP_DLTIME) { |
1369 | mpbogus.status = 0; | |
1370 | error = ETIMEDOUT; | |
1371 | } else { | |
1372 | mpbogus.status = 0; | |
1373 | error = ENXIO; | |
1374 | log(LOG_ERR, "mp%d: start download: unknown status %x", | |
1375 | unit, mb->mb_status); | |
1376 | } | |
5db86c85 | 1377 | bzero((caddr_t)mb->mb_port, sizeof (mb->mb_port)); |
d55465de SL |
1378 | break; |
1379 | case MPIORESETBOARD: | |
1380 | s = spl8(); | |
1381 | if (mb->mb_imokclk) | |
1382 | mb->mb_imokclk = 0; | |
1383 | *(u_short *)mpinfo[unit]->ui_addr = 0x100; | |
1384 | if (mb->mb_status == MP_DLOPEN || mb->mb_status == MP_DLDONE) { | |
1385 | mpdlerr = MP_DLERROR; | |
1386 | dl->mpdl_status = EVSTATUS_FREE; | |
1387 | wakeup((caddr_t)&dl->mpdl_status); | |
1388 | mpbogus.status = 0; | |
1389 | } | |
1390 | for (i = 0; i < MPMAXPORT; i++) { | |
1391 | if (mb->mb_harderr || mb->mb_softerr) | |
1392 | mperror(mb, i); | |
1393 | mpcleanport(mb, i); | |
1394 | mb->mb_proto[i] = MPPROTO_UNUSED; | |
1395 | } | |
1396 | mb->mb_status = 0; | |
1397 | splx(s); | |
1398 | break; | |
1399 | default: | |
1400 | error = EINVAL; | |
1401 | break; | |
1402 | } | |
1403 | return (error); | |
1404 | } | |
1405 | ||
1406 | mpccinit(unit) | |
1407 | int unit; | |
1408 | { | |
1409 | register struct mblok *mb = mp_softc[unit].ms_mb; | |
1410 | register struct his *his; | |
1411 | register int i, j; | |
1412 | ||
1413 | mb->mb_status = MP_DLDONE; | |
1414 | mb->mb_ivec = mp_softc[unit].ms_ivec; | |
1415 | mb->mb_magic = MPMAGIC; | |
1416 | /* Init host interface structure */ | |
1417 | his = &mb->mb_hostint; | |
1418 | his->semaphore = MPSEMA_AVAILABLE; | |
1419 | for (i = 0; i < NMPPROTO; i++) | |
1420 | for (j = 0; j < MPMAXPORT; j++) { | |
1421 | his->proto[i].inbdone[j] = MPPORT_EOL; | |
1422 | his->proto[i].outbdone[j] = MPPORT_EOL; | |
1423 | } | |
1424 | mb->mb_unit = unit; | |
1425 | } | |
1426 | ||
1427 | mpdlintr(mpcc) | |
1428 | int mpcc; | |
1429 | { | |
1430 | register struct mblok *mb; | |
1431 | register struct mpdl *dl; | |
1432 | ||
1433 | mb = mp_softc[mpcc].ms_mb; | |
1434 | if (mb == 0) { | |
1435 | printf("mp%d: stray download interrupt\n", mpcc); | |
1436 | return; | |
1437 | } | |
1438 | dl = &mb->mb_dl; | |
1439 | switch (mb->mb_status) { | |
1440 | case MP_DLOPEN: | |
1441 | if (dl->mpdl_status != EVSTATUS_DONE) | |
1442 | mpdlerr = MP_DLERROR; | |
1443 | dl->mpdl_status = EVSTATUS_FREE; | |
1444 | wakeup((caddr_t)&dl->mpdl_status); | |
1445 | return; | |
1446 | case MP_DLPEND: | |
1447 | mb->mb_status = MP_DLOPEN; | |
5db86c85 | 1448 | wakeup((caddr_t)&mb->mb_status); |
d55465de SL |
1449 | /* fall thru... */ |
1450 | case MP_DLTIME: | |
1451 | return; | |
1452 | case MP_OPOPEN: | |
1453 | if (mb->mb_imokclk) | |
1454 | mb->mb_imokclk = 0; | |
1455 | mb->mb_nointcnt = 0; /* reset no interrupt count */ | |
1456 | mb->mb_hostint.imok = MPIMOK_DEAD; | |
1457 | mb->mb_imokclk = (caddr_t)1; | |
1458 | break; | |
1459 | default: | |
1460 | log(LOG_ERR, "mp%d: mpdlintr, status %x\n", | |
1461 | mpcc, mb->mb_status); | |
1462 | break; | |
1463 | } | |
1464 | } | |
1465 | ||
1466 | mpdltimeout(mp) | |
1467 | struct mblok *mp; | |
1468 | { | |
1469 | ||
1470 | mp->mb_status = MP_DLTIME; | |
1471 | wakeup((caddr_t)&mp->mb_status); | |
1472 | } | |
1473 | ||
1474 | /* | |
1475 | * Wait for a transfer to complete or a timeout to occur. | |
1476 | */ | |
1477 | mpdlwait(dl) | |
1478 | register struct mpdl *dl; | |
1479 | { | |
1480 | int s, error = 0; | |
1481 | ||
1482 | s = spl8(); | |
1483 | dl->mpdl_status = EVSTATUS_GO; | |
1484 | while (dl->mpdl_status != EVSTATUS_FREE) { | |
1485 | sleep((caddr_t)&dl->mpdl_status, PZERO+1); | |
1486 | if (mpdlerr == MP_DLERROR) | |
1487 | error = EIO; | |
1488 | } | |
1489 | splx(s); | |
1490 | return (error); | |
1491 | } | |
1492 | #endif |