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 | * |
c98f3d99 | 20 | * @(#)mp.c 7.13 (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" | |
d55465de SL |
32 | #include "user.h" |
33 | #include "map.h" | |
34 | #include "buf.h" | |
35 | #include "conf.h" | |
36 | #include "file.h" | |
d55465de SL |
37 | #include "errno.h" |
38 | #include "syslog.h" | |
39 | #include "vmmac.h" | |
40 | #include "kernel.h" | |
41 | #include "clist.h" | |
42 | ||
c18e27ed KM |
43 | #include "machine/pte.h" |
44 | #include "machine/mtpr.h" | |
5db86c85 | 45 | |
d55465de SL |
46 | #include "../tahoevba/vbavar.h" |
47 | #include "../tahoevba/mpreg.h" | |
48 | ||
49 | #define MPCHUNK 16 | |
50 | #define MPPORT(n) ((n) & 0xf) | |
51 | #define MPUNIT(n) ((n) >> 4) | |
52 | ||
53 | /* | |
54 | * Driver information for auto-configuration stuff. | |
55 | */ | |
56 | int mpprobe(), mpattach(), mpintr(); | |
57 | struct vba_device *mpinfo[NMP]; | |
58 | long mpstd[] = { 0 }; | |
59 | struct vba_driver mpdriver = | |
60 | { mpprobe, 0, mpattach, 0, mpstd, "mp", mpinfo }; | |
61 | ||
62 | int mpstart(); | |
240fb450 MT |
63 | int mpparam(); |
64 | struct mpevent *mpparam2(); | |
d55465de SL |
65 | struct mpevent *mp_getevent(); |
66 | ||
67 | /* | |
68 | * The following structure is needed to deal with mpcc's convoluted | |
69 | * method for locating it's mblok structures (hold your stomach). | |
70 | * When an mpcc is reset at boot time it searches host memory | |
71 | * looking for a string that says ``ThIs Is MpCc''. The mpcc | |
72 | * then reads the structure to locate the pointer to it's mblok | |
73 | * structure (you can wretch now). | |
74 | */ | |
75 | struct mpbogus { | |
76 | char s[12]; /* `ThIs Is MpCc'' */ | |
77 | u_char status; | |
78 | u_char unused; | |
79 | u_short magic; | |
80 | struct mblok *mb; | |
81 | struct mblok *mbloks[NMP]; /* can support at most 16 mpcc's */ | |
82 | } mpbogus = { 'T','h','I','s',' ','I','s',' ','M','p','C','c' }; | |
83 | ||
84 | /* | |
85 | * Software state per unit. | |
86 | */ | |
87 | struct mpsoftc { | |
88 | u_int ms_ivec; /* interrupt vector */ | |
89 | u_int ms_softCAR; /* software carrier for async */ | |
90 | struct mblok *ms_mb; /* mpcc status area */ | |
91 | struct vb_buf ms_buf; /* vba resources for ms_mb */ | |
92 | struct hxmtl ms_hxl[MPMAXPORT];/* host transmit list */ | |
93 | struct asyncparam ms_async[MPMAXPORT][MPINSET];/* async structs */ | |
94 | char ms_cbuf[MPMAXPORT][MPOUTSET][CBSIZE];/* input character buffers */ | |
95 | } mp_softc[NMP]; | |
96 | ||
240fb450 MT |
97 | struct speedtab |
98 | mpspeedtab[] = { | |
99 | 9600, M9600, /* baud rate = 9600 */ | |
100 | 4800, M4800, /* baud rate = 4800 */ | |
101 | 2400, M2400, /* baud rate = 2400 */ | |
102 | 1800, M1800, /* baud rate = 1800 */ | |
103 | 1200, M1200, /* baud rate = 1200 */ | |
104 | 600, M600, /* baud rate = 600 */ | |
105 | 300, M300, /* baud rate = 300 */ | |
106 | 200, M200, /* baud rate = 200 */ | |
107 | 150, M150, /* baud rate = 150 */ | |
108 | 134, M134_5, /* baud rate = 134.5 */ | |
109 | 110, M110, /* baud rate = 110 */ | |
110 | 75, M75, /* baud rate = 75 */ | |
111 | 50, M50, /* baud rate = 50 */ | |
112 | 0, M0, /* baud rate = 0 */ | |
113 | 2000, M2000, /* baud rate = 2000 */ | |
114 | 3600, M3600, /* baud rate = 3600 */ | |
115 | 7200, M7200, /* baud rate = 7200 */ | |
116 | 19200, M19200, /* baud rate = 19,200 */ | |
117 | 24000, M24000, /* baud rate = 24,000 */ | |
118 | 28400, M28400, /* baud rate = 28,400 */ | |
119 | 37800, M37800, /* baud rate = 37,800 */ | |
120 | 40300, M40300, /* baud rate = 40,300 */ | |
121 | 48000, M48000, /* baud rate = 48,000 */ | |
122 | 52000, M52000, /* baud rate = 52,000 */ | |
123 | 56800, M56800, /* baud rate = 56,800 */ | |
124 | EXTA, MEXTA, /* baud rate = Ext A */ | |
125 | EXTB, MEXTB, /* baud rate = Ext B */ | |
126 | -1, -1, | |
127 | }; | |
128 | ||
d55465de SL |
129 | struct tty mp_tty[NMP*MPCHUNK]; |
130 | #ifndef lint | |
131 | int nmp = NMP*MPCHUNK; | |
132 | #endif | |
133 | ||
134 | int ttrstrt(); | |
135 | ||
136 | mpprobe(reg, vi) | |
137 | caddr_t reg; | |
138 | struct vba_device *vi; | |
139 | { | |
140 | register int br, cvec; | |
141 | register struct mpsoftc *ms; | |
142 | ||
143 | #ifdef lint | |
144 | br = 0; cvec = br; br = cvec; | |
145 | mpintr(0); | |
5db86c85 | 146 | mpdlintr(0); |
d55465de SL |
147 | #endif |
148 | if (badaddr(reg, 2)) | |
149 | return (0); | |
150 | ms = &mp_softc[vi->ui_unit]; | |
151 | /* | |
152 | * Allocate page tables and mblok | |
153 | * structure (mblok in non-cached memory). | |
154 | */ | |
155 | if (vbainit(&ms->ms_buf, sizeof (struct mblok), VB_32BIT) == 0) { | |
156 | printf("mp%d: vbainit failed\n", vi->ui_unit); | |
157 | return (0); | |
158 | } | |
159 | ms->ms_mb = (struct mblok *)ms->ms_buf.vb_rawbuf; | |
160 | ms->ms_ivec = MPINTRBASE + 2*vi->ui_unit; /* XXX */ | |
161 | br = 0x14, cvec = ms->ms_ivec; /* XXX */ | |
7c707d99 | 162 | return (sizeof (*reg)); |
d55465de SL |
163 | } |
164 | ||
165 | mpattach(vi) | |
166 | register struct vba_device *vi; | |
167 | { | |
168 | register struct mpsoftc *ms = &mp_softc[vi->ui_unit]; | |
169 | ||
170 | ms->ms_softCAR = vi->ui_flags; | |
171 | /* | |
172 | * Setup pointer to mblok, initialize bogus | |
173 | * status block used by mpcc to locate the pointer | |
174 | * and then poke the mpcc to get it to search host | |
175 | * memory to find mblok pointer. | |
176 | */ | |
177 | mpbogus.mbloks[vi->ui_unit] = (struct mblok *)ms->ms_buf.vb_physbuf; | |
178 | *(short *)vi->ui_addr = 0x100; /* magic */ | |
179 | } | |
180 | ||
181 | /* | |
182 | * Open an mpcc port. | |
183 | */ | |
5db86c85 | 184 | /* ARGSUSED */ |
d55465de SL |
185 | mpopen(dev, mode) |
186 | dev_t dev; | |
187 | { | |
188 | register struct tty *tp; | |
189 | register struct mpsoftc *ms; | |
190 | int error, s, port, unit, mpu; | |
191 | struct vba_device *vi; | |
192 | struct mpport *mp; | |
193 | struct mpevent *ev; | |
194 | ||
195 | unit = minor(dev); | |
196 | mpu = MPUNIT(unit); | |
197 | if (mpu >= NMP || (vi = mpinfo[mpu]) == 0 || vi->ui_alive == 0) | |
198 | return (ENXIO); | |
199 | tp = &mp_tty[unit]; | |
200 | if (tp->t_state & TS_XCLUDE && u.u_uid != 0) | |
201 | return (EBUSY); | |
202 | ms = &mp_softc[mpu]; | |
203 | port = MPPORT(unit); | |
204 | if (ms->ms_mb->mb_proto[port] != MPPROTO_ASYNC || | |
205 | ms->ms_mb->mb_status != MP_OPOPEN) | |
206 | return (ENXIO); | |
207 | mp = &ms->ms_mb->mb_port[port]; /* host mpcc struct */ | |
208 | s = spl8(); | |
255871c5 KB |
209 | /* |
210 | * serialize open and close events | |
211 | */ | |
240fb450 | 212 | while ((mp->mp_flags & MP_PROGRESS) || ((tp->t_state & TS_WOPEN) && |
0658cf79 MK |
213 | !(mode&O_NONBLOCK) && !(tp->t_cflag&CLOCAL))) |
214 | if (error = tsleep((caddr_t)&tp->t_canq, TTIPRI | PCATCH, | |
215 | ttopen, 0)) { | |
216 | splx(s); | |
217 | return (error); | |
218 | } | |
255871c5 | 219 | restart: |
d55465de SL |
220 | tp->t_state |= TS_WOPEN; |
221 | tp->t_addr = (caddr_t)ms; | |
222 | tp->t_oproc = mpstart; | |
240fb450 | 223 | tp->t_param = mpparam; |
d55465de | 224 | tp->t_dev = dev; |
0eeaf15c KB |
225 | if ((tp->t_state & TS_ISOPEN) == 0) { |
226 | ttychars(tp); | |
227 | if (tp->t_ispeed == 0) { | |
0658cf79 MK |
228 | tp->t_ispeed = TTYDEF_SPEED; |
229 | tp->t_ospeed = TTYDEF_SPEED; | |
230 | tp->t_iflag = TTYDEF_IFLAG; | |
231 | tp->t_oflag = TTYDEF_OFLAG; | |
232 | tp->t_lflag = TTYDEF_LFLAG; | |
233 | tp->t_cflag = TTYDEF_CFLAG; | |
0eeaf15c KB |
234 | } |
235 | /* | |
236 | * Initialize port state: init MPCC interface | |
237 | * structures for port and setup modem control. | |
238 | */ | |
0eeaf15c KB |
239 | error = mpportinit(ms, mp, port); |
240 | if (error) | |
241 | goto bad; | |
240fb450 | 242 | ev = mpparam2(tp, &tp->t_termios); |
0eeaf15c KB |
243 | if (ev == 0) { |
244 | error = ENOBUFS; | |
245 | goto bad; | |
246 | } | |
255871c5 | 247 | mp->mp_flags |= MP_PROGRESS; |
0eeaf15c | 248 | mpcmd(ev, EVCMD_OPEN, 0, ms->ms_mb, port); |
255871c5 KB |
249 | /* |
250 | * wait for port to start | |
251 | */ | |
252 | while (mp->mp_proto != MPPROTO_ASYNC) | |
0658cf79 MK |
253 | if (error = tsleep((caddr_t)&tp->t_canq, |
254 | TTIPRI | PCATCH, ttopen, 0)) | |
255 | goto bad; | |
240fb450 | 256 | ttsetwater(tp); |
255871c5 | 257 | mp->mp_flags &= ~MP_PROGRESS; |
d55465de | 258 | } |
0658cf79 MK |
259 | while ((mode&O_NONBLOCK) == 0 && (tp->t_cflag&CLOCAL) == 0 && |
260 | (tp->t_state & TS_CARR_ON) == 0) { | |
b886928d MT |
261 | if ((error = tsleep((caddr_t)&tp->t_rawq, TTIPRI | PCATCH, |
262 | ttopen, 0)) || | |
263 | (error = ttclosed(tp))) | |
0658cf79 | 264 | goto bad; |
255871c5 KB |
265 | /* |
266 | * a mpclose() might have disabled port. if so restart | |
267 | */ | |
268 | if (mp->mp_proto != MPPROTO_ASYNC) | |
269 | goto restart; | |
270 | tp->t_state |= TS_WOPEN; | |
271 | } | |
d55465de SL |
272 | error = (*linesw[tp->t_line].l_open)(dev,tp); |
273 | done: | |
274 | splx(s); | |
255871c5 KB |
275 | /* |
276 | * wakeup those processes waiting for the open to complete | |
277 | */ | |
d55465de | 278 | wakeup((caddr_t)&tp->t_canq); |
d55465de SL |
279 | return (error); |
280 | bad: | |
281 | tp->t_state &= ~TS_WOPEN; | |
282 | goto done; | |
283 | } | |
284 | ||
285 | /* | |
286 | * Close an mpcc port. | |
287 | */ | |
5db86c85 MK |
288 | /* ARGSUSED */ |
289 | mpclose(dev, flag) | |
d55465de SL |
290 | dev_t dev; |
291 | { | |
292 | register struct tty *tp; | |
293 | register struct mpport *mp; | |
294 | register struct mpevent *ev; | |
0658cf79 | 295 | int s, port, unit, error = 0; |
d55465de SL |
296 | struct mblok *mb; |
297 | ||
298 | unit = minor(dev); | |
299 | tp = &mp_tty[unit]; | |
300 | port = MPPORT(unit); | |
301 | mb = mp_softc[MPUNIT(unit)].ms_mb; | |
302 | mp = &mb->mb_port[port]; | |
303 | s = spl8(); | |
255871c5 | 304 | if (mp->mp_flags & MP_PROGRESS) { |
d55465de SL |
305 | if (mp->mp_flags & MP_REMBSY) { |
306 | mp->mp_flags &= ~MP_REMBSY; | |
307 | splx(s); | |
308 | return (0); | |
309 | } | |
310 | while (mp->mp_flags & MP_PROGRESS) | |
0658cf79 MK |
311 | if (error = tsleep((caddr_t)&tp->t_canq, |
312 | TTIPRI | PCATCH, ttclos, 0)) { | |
313 | splx(s); | |
314 | return (error); | |
315 | } | |
d55465de | 316 | } |
d55465de SL |
317 | mp->mp_flags |= MP_PROGRESS; |
318 | (*linesw[tp->t_line].l_close)(tp); | |
255871c5 | 319 | ev = mp_getevent(mp, unit, 1); |
d55465de | 320 | if (ev == 0) { |
954f71cc KB |
321 | error = ENOBUFS; |
322 | mp->mp_flags &= ~MP_PROGRESS; | |
323 | goto out; | |
d55465de | 324 | } |
954f71cc KB |
325 | if (tp->t_state & TS_HUPCLS || (tp->t_state & TS_ISOPEN) == 0) |
326 | mpmodem(unit, MMOD_OFF); | |
327 | else | |
328 | mpmodem(unit, MMOD_ON); | |
d55465de | 329 | mpcmd(ev, EVCMD_CLOSE, 0, mb, port); |
0658cf79 | 330 | error = ttyclose(tp); |
d55465de SL |
331 | out: |
332 | if (mp->mp_flags & MP_REMBSY) | |
333 | mpclean(mb, port); | |
255871c5 | 334 | else |
0658cf79 MK |
335 | while (mp->mp_flags & MP_PROGRESS && error == 0) |
336 | error = tsleep((caddr_t)&tp->t_canq, TTIPRI | PCATCH, | |
337 | ttclos, 0); | |
d55465de SL |
338 | splx(s); |
339 | return (error); | |
340 | } | |
341 | ||
342 | /* | |
343 | * Read from an mpcc port. | |
344 | */ | |
240fb450 | 345 | mpread(dev, uio, flag) |
d55465de SL |
346 | dev_t dev; |
347 | struct uio *uio; | |
348 | { | |
349 | struct tty *tp; | |
350 | ||
351 | tp = &mp_tty[minor(dev)]; | |
240fb450 | 352 | return ((*linesw[tp->t_line].l_read)(tp, uio, flag)); |
d55465de SL |
353 | } |
354 | ||
355 | /* | |
356 | * Write to an mpcc port. | |
357 | */ | |
240fb450 | 358 | mpwrite(dev, uio, flag) |
d55465de SL |
359 | dev_t dev; |
360 | struct uio *uio; | |
361 | { | |
362 | struct tty *tp; | |
363 | ||
364 | tp = &mp_tty[minor(dev)]; | |
240fb450 | 365 | return ((*linesw[tp->t_line].l_write)(tp, uio, flag)); |
d55465de SL |
366 | } |
367 | ||
368 | /* | |
369 | * Ioctl for a mpcc port | |
370 | */ | |
371 | mpioctl(dev, cmd, data, flag) | |
372 | dev_t dev; | |
373 | caddr_t data; | |
374 | { | |
375 | register struct tty *tp; | |
376 | register struct mpsoftc *ms; | |
d55465de | 377 | register struct mpport *mp; |
240fb450 | 378 | register struct mpevent *ev; |
d55465de SL |
379 | int s, port, error, unit; |
380 | struct mblok *mb; | |
381 | ||
382 | unit = minor(dev); | |
383 | tp = &mp_tty[unit]; | |
384 | ms = &mp_softc[MPUNIT(unit)]; | |
385 | mb = ms->ms_mb; | |
255871c5 KB |
386 | port = MPPORT(unit); |
387 | mp = &mb->mb_port[port]; | |
388 | if (mp->mp_proto != MPPROTO_ASYNC) | |
389 | return(ENXIO); | |
d55465de SL |
390 | error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag); |
391 | if (error >= 0) | |
392 | return (error); | |
393 | error = ttioctl(tp, cmd, data, flag); | |
240fb450 | 394 | if (error >= 0) |
d55465de | 395 | return (error); |
d55465de SL |
396 | switch (cmd) { |
397 | case TIOCSBRK: /* send break */ | |
398 | case TIOCCBRK: /* clear break */ | |
d55465de | 399 | s = spl8(); |
255871c5 | 400 | while (mp->mp_flags & MP_IOCTL) { |
0658cf79 MK |
401 | if (error = tsleep((caddr_t)&tp->t_canq, |
402 | TTIPRI | PCATCH, ttyout, 0)) { | |
403 | splx(s); | |
404 | return (error); | |
405 | } | |
255871c5 | 406 | if (mp->mp_proto != MPPROTO_ASYNC) { |
255871c5 | 407 | splx(s); |
0658cf79 | 408 | return (ENXIO); |
255871c5 KB |
409 | } |
410 | } | |
411 | ev = mp_getevent(mp, unit, 0); | |
412 | if (ev) { | |
413 | mp->mp_flags |= MP_IOCTL; | |
d55465de | 414 | mpcmd(ev, EVCMD_IOCTL, |
255871c5 KB |
415 | (cmd == TIOCSBRK ? A_BRKON : A_BRKOFF), mb, port); |
416 | } else | |
d55465de SL |
417 | error = ENOBUFS; |
418 | splx(s); | |
419 | break; | |
420 | case TIOCSDTR: /* set dtr control line */ | |
421 | break; | |
422 | case TIOCCDTR: /* clear dtr control line */ | |
423 | break; | |
424 | default: | |
425 | error = ENOTTY; | |
426 | break; | |
427 | } | |
428 | return (error); | |
429 | } | |
430 | ||
240fb450 MT |
431 | mpparam(tp, t) |
432 | struct tty *tp; | |
433 | struct termios *t; | |
434 | { | |
435 | register struct mpevent *ev; | |
436 | int unit = minor(tp->t_dev); | |
437 | struct mpsoftc *ms = &mp_softc[MPUNIT(unit)]; | |
438 | struct mblok *mb = ms->ms_mb; | |
439 | ||
440 | ev = mpparam2(tp, t); | |
441 | if (ev == 0) | |
442 | return (ENOBUFS); | |
443 | mpcmd(ev, EVCMD_IOCTL, A_CHGALL, mb, MPPORT(unit)); | |
444 | return (0); | |
445 | } | |
446 | ||
d55465de | 447 | struct mpevent * |
240fb450 MT |
448 | mpparam2(tp, t) |
449 | register struct tty *tp; | |
450 | struct termios *t; | |
d55465de SL |
451 | { |
452 | register struct mpevent *ev; | |
453 | register struct mpport *mp; | |
240fb450 | 454 | int unit = minor(tp->t_dev); |
d55465de SL |
455 | struct mblok *mb; |
456 | struct mpsoftc *ms; | |
457 | register struct asyncparam *asp; | |
240fb450 | 458 | int port, speedcode; |
d55465de SL |
459 | |
460 | ms = &mp_softc[MPUNIT(unit)]; | |
461 | mb = ms->ms_mb; | |
462 | port = MPPORT(unit); | |
463 | mp = &mb->mb_port[port]; | |
255871c5 | 464 | ev = mp_getevent(mp, unit, 0); /* XXX */ |
240fb450 MT |
465 | speedcode = ttspeedtab(t->c_ospeed, mpspeedtab); |
466 | if (ev == 0 || speedcode < 0) { | |
467 | printf("mp mpunit %d port %d param2 failed ev: %x speed %d, wanted %d\n", | |
468 | MPUNIT(unit), port, ev, speedcode, t->c_ospeed); | |
469 | return (0); /* XXX */ | |
470 | } | |
d55465de SL |
471 | /* YUCK */ |
472 | asp = &ms->ms_async[port][mp->mp_on?mp->mp_on-1:MPINSET-1]; | |
240fb450 MT |
473 | asp->ap_xon = t->c_cc[VSTART]; |
474 | asp->ap_xoff = t->c_cc[VSTOP]; | |
475 | if (!(t->c_iflag&IXON) || (asp->ap_xon == _POSIX_VDISABLE) || | |
476 | (asp->ap_xoff == _POSIX_VDISABLE)) | |
b532c831 KB |
477 | asp->ap_xena = MPA_DIS; |
478 | else | |
479 | asp->ap_xena = MPA_ENA; | |
240fb450 | 480 | asp->ap_xany = ((t->c_iflag & IXANY) ? MPA_ENA : MPA_DIS); |
d55465de | 481 | #ifdef notnow |
240fb450 | 482 | if (t->t_cflag&CSIZE) == CS8) { |
d55465de SL |
483 | #endif |
484 | asp->ap_data = MPCHAR_8; | |
485 | asp->ap_parity = MPPAR_NONE; | |
486 | #ifdef notnow | |
487 | } else { | |
488 | asp->ap_data = MPCHAR_7; | |
240fb450 | 489 | if ((t->c_flags & (EVENP|ODDP)) == ODDP) /* XXX */ |
d55465de SL |
490 | asp->ap_parity = MPPAR_ODD; |
491 | else | |
492 | asp->ap_parity = MPPAR_EVEN; | |
493 | } | |
494 | #endif | |
255871c5 KB |
495 | asp->ap_loop = MPA_DIS; /* disable loopback */ |
496 | asp->ap_rtimer = A_RCVTIM; /* default receive timer */ | |
240fb450 | 497 | if (t->c_ospeed == B110) |
d55465de SL |
498 | asp->ap_stop = MPSTOP_2; |
499 | else | |
500 | asp->ap_stop = MPSTOP_1; | |
240fb450 | 501 | if (t->c_ospeed == 0) { |
255871c5 KB |
502 | tp->t_state |= TS_HUPCLS; |
503 | setm(&asp->ap_modem, 0, DROP); | |
504 | seti(&asp->ap_intena, A_DCD); | |
505 | return (ev); | |
506 | } | |
240fb450 | 507 | if (t->c_ospeed == EXTA || t->c_ospeed == EXTB) |
d55465de SL |
508 | asp->ap_baud = M19200; |
509 | else | |
240fb450 MT |
510 | asp->ap_baud = speedcode; |
511 | if (1 || ms->ms_softCAR & (1<<port)) /* XXX HARDWIRE FOR NOW */ | |
d55465de SL |
512 | setm(&asp->ap_modem, A_DTR, ASSERT); |
513 | else | |
514 | setm(&asp->ap_modem, A_DTR, AUTO); | |
515 | seti(&asp->ap_intena, A_DCD); | |
240fb450 | 516 | return(ev); |
d55465de SL |
517 | } |
518 | ||
519 | mpstart(tp) | |
520 | register struct tty *tp; | |
521 | { | |
522 | register struct mpevent *ev; | |
523 | register struct mpport *mp; | |
524 | struct mblok *mb; | |
525 | struct mpsoftc *ms; | |
526 | int port, unit, xcnt, n, s, i; | |
527 | struct hxmtl *hxp; | |
528 | struct clist outq; | |
529 | ||
530 | s = spl8(); | |
531 | unit = minor(tp->t_dev); | |
532 | ms = &mp_softc[MPUNIT(unit)]; | |
533 | mb = ms->ms_mb; | |
534 | port = MPPORT(unit); | |
535 | mp = &mb->mb_port[port]; | |
536 | hxp = &ms->ms_hxl[port]; | |
537 | xcnt = 0; | |
538 | outq = tp->t_outq; | |
539 | for (i = 0; i < MPXMIT; i++) { | |
540 | if (tp->t_state & (TS_TIMEOUT|TS_BUSY|TS_TTSTOP)) | |
541 | break; | |
240fb450 | 542 | if (outq.c_cc <= tp->t_lowat) { |
d55465de SL |
543 | if (tp->t_state & TS_ASLEEP) { |
544 | tp->t_state &= ~TS_ASLEEP; | |
545 | wakeup((caddr_t)&tp->t_outq); | |
546 | } | |
547 | if (tp->t_wsel) { | |
548 | selwakeup(tp->t_wsel, tp->t_state & TS_WCOLL); | |
549 | tp->t_wsel = 0; | |
550 | tp->t_state &= ~TS_WCOLL; | |
551 | } | |
552 | } | |
553 | if (outq.c_cc == 0) | |
554 | break; | |
555 | /* | |
556 | * If we're not currently busy outputting, | |
557 | * and there is data to be output, set up | |
558 | * port transmit structure to send to mpcc. | |
559 | */ | |
240fb450 | 560 | if (1) /* || tp->t_flags & (RAW|LITOUT)) XXX FIX */ |
d55465de SL |
561 | n = ndqb(&outq, 0); |
562 | else { | |
563 | n = ndqb(&outq, 0200); | |
564 | if (n == 0) { | |
255871c5 KB |
565 | if (xcnt > 0) |
566 | break; | |
d55465de SL |
567 | n = getc(&outq); |
568 | timeout(ttrstrt, (caddr_t)tp, (n&0177)+6); | |
569 | tp->t_state |= TS_TIMEOUT; | |
570 | break; | |
571 | } | |
572 | } | |
5db86c85 | 573 | hxp->dblock[i] = (caddr_t)kvtophys(outq.c_cf); |
d55465de SL |
574 | hxp->size[i] = n; |
575 | xcnt++; /* count of xmts to send */ | |
576 | ndadvance(&outq, n); | |
577 | } | |
578 | /* | |
579 | * If data to send, poke mpcc. | |
580 | */ | |
581 | if (xcnt) { | |
255871c5 | 582 | ev = mp_getevent(mp, unit, 0); |
d55465de SL |
583 | if (ev == 0) { |
584 | tp->t_state &= ~(TS_BUSY|TS_TIMEOUT); | |
585 | } else { | |
586 | tp->t_state |= TS_BUSY; | |
587 | ev->ev_count = xcnt; | |
588 | mpcmd(ev, EVCMD_WRITE, 0, mb, MPPORT(unit)); | |
589 | } | |
590 | } | |
591 | splx(s); | |
592 | } | |
593 | ||
594 | /* | |
595 | * Advance cc bytes from q but don't free memory. | |
596 | */ | |
597 | ndadvance(q, cc) | |
598 | register struct clist *q; | |
599 | register cc; | |
600 | { | |
601 | register struct cblock *bp; | |
602 | char *end; | |
603 | int rem, s; | |
604 | ||
605 | s = spltty(); | |
606 | if (q->c_cc <= 0) | |
607 | goto out; | |
608 | while (cc>0 && q->c_cc) { | |
609 | bp = (struct cblock *)((int)q->c_cf & ~CROUND); | |
610 | if ((int)bp == (((int)q->c_cl-1) & ~CROUND)) { | |
611 | end = q->c_cl; | |
612 | } else { | |
613 | end = (char *)((int)bp + sizeof (struct cblock)); | |
614 | } | |
615 | rem = end - q->c_cf; | |
616 | if (cc >= rem) { | |
617 | cc -= rem; | |
618 | q->c_cc -= rem; | |
619 | q->c_cf = bp->c_next->c_info; | |
620 | } else { | |
621 | q->c_cc -= cc; | |
622 | q->c_cf += cc; | |
623 | break; | |
624 | } | |
625 | } | |
626 | if (q->c_cc <= 0) { | |
627 | q->c_cf = q->c_cl = NULL; | |
628 | q->c_cc = 0; | |
629 | } | |
630 | out: | |
631 | splx(s); | |
632 | } | |
633 | ||
634 | /* | |
635 | * Stop output on a line, e.g. for ^S/^Q or output flush. | |
636 | */ | |
5db86c85 | 637 | /* ARGSUSED */ |
d55465de SL |
638 | mpstop(tp, rw) |
639 | register struct tty *tp; | |
640 | int rw; | |
641 | { | |
255871c5 KB |
642 | register struct mpport *mp; |
643 | register struct mpevent *ev; | |
644 | int unit = minor(tp->t_dev); | |
645 | int port; | |
646 | struct mblok *mb; | |
5db86c85 | 647 | int s; |
d55465de SL |
648 | |
649 | s = spl8(); | |
d55465de | 650 | if (tp->t_state & TS_BUSY) { |
255871c5 | 651 | if ((tp->t_state & TS_TTSTOP) == 0) { |
d55465de | 652 | tp->t_state |= TS_FLUSH; |
255871c5 KB |
653 | port = MPPORT(unit); |
654 | mb = mp_softc[MPUNIT(unit)].ms_mb; | |
655 | mp = &mb->mb_port[port]; | |
656 | ev = mp_getevent(mp, unit, 0); | |
657 | if (ev == 0) { | |
658 | splx(s); | |
659 | return; | |
660 | } | |
661 | mpcmd(ev, EVCMD_WRITE, A_FLUSH, mb, port); | |
662 | } | |
d55465de SL |
663 | } |
664 | splx(s); | |
665 | } | |
666 | ||
667 | /* | |
668 | * Initialize an async port's MPCC state. | |
669 | */ | |
670 | mpportinit(ms, mp, port) | |
671 | register struct mpsoftc *ms; | |
672 | register struct mpport *mp; | |
673 | int port; | |
674 | { | |
675 | register struct mpevent *ev; | |
676 | register int i; | |
677 | caddr_t ptr; | |
678 | ||
679 | mp->mp_on = mp->mp_off = 0; | |
680 | mp->mp_nextrcv = 0; | |
681 | mp->mp_flags = 0; | |
682 | ev = &mp->mp_recvq[0]; | |
683 | for (i = 0; ev < &mp->mp_recvq[MPINSET]; ev++, i++) { | |
684 | ev->ev_status = EVSTATUS_FREE; | |
685 | ev->ev_cmd = 0; | |
686 | ev->ev_opts = 0; | |
687 | ev->ev_error = 0; | |
688 | ev->ev_flags = 0; | |
689 | ev->ev_count = 0; | |
5db86c85 MK |
690 | ev->ev_un.hxl = (struct hxmtl *) kvtophys(&ms->ms_hxl[port]); |
691 | ev->ev_params = (caddr_t) kvtophys(&ms->ms_async[port][i]); | |
d55465de SL |
692 | } |
693 | ev = &mp->mp_sendq[0]; | |
694 | for (i = 0; ev < &mp->mp_sendq[MPOUTSET]; ev++, i++) { | |
695 | /* init so that L2 can't send any events */ | |
696 | /* to host until open has completed */ | |
697 | ev->ev_status = EVSTATUS_FREE; | |
698 | ev->ev_cmd = 0; | |
255871c5 | 699 | ev->ev_opts = 0; |
d55465de SL |
700 | ev->ev_error = 0; |
701 | ev->ev_flags = 0; | |
702 | ev->ev_count = 0; | |
703 | ptr = (caddr_t) &ms->ms_cbuf[port][i][0]; | |
5db86c85 MK |
704 | ev->ev_un.rcvblk = (u_char *)kvtophys(ptr); |
705 | ev->ev_params = (caddr_t) kvtophys(ptr); | |
d55465de SL |
706 | } |
707 | return (0); | |
708 | } | |
709 | ||
710 | /* | |
711 | * Send an event to an mpcc. | |
712 | */ | |
713 | mpcmd(ev, cmd, flags, mb, port) | |
714 | register struct mpevent *ev; | |
715 | struct mblok *mb; | |
716 | { | |
717 | int s; | |
718 | ||
719 | s = spl8(); | |
720 | /* move host values to inbound entry */ | |
721 | ev->ev_cmd = cmd; | |
722 | ev->ev_opts = flags; | |
723 | /* show event ready for mpcc */ | |
724 | ev->ev_status = EVSTATUS_GO; | |
725 | mpintmpcc(mb, port); | |
726 | splx(s); | |
727 | } | |
728 | ||
729 | /* | |
730 | * Return the next available event entry for the indicated port. | |
731 | */ | |
732 | struct mpevent * | |
255871c5 | 733 | mp_getevent(mp, unit, cls_req) |
d55465de SL |
734 | register struct mpport *mp; |
735 | int unit; | |
255871c5 | 736 | int cls_req; |
d55465de SL |
737 | { |
738 | register struct mpevent *ev; | |
739 | int i, s; | |
740 | ||
741 | s = spl8(); | |
742 | ev = &mp->mp_recvq[mp->mp_on]; | |
743 | if (ev->ev_status != EVSTATUS_FREE) | |
744 | goto bad; | |
745 | /* | |
746 | * If not a close request, verify one extra | |
747 | * event is available for closing the port. | |
748 | */ | |
255871c5 | 749 | if (!cls_req) { |
d55465de SL |
750 | if ((i = mp->mp_on + 1) >= MPINSET) |
751 | i = 0; | |
752 | if (mp->mp_recvq[i].ev_status != EVSTATUS_FREE) | |
753 | goto bad; | |
754 | } | |
755 | /* init inbound fields marking this entry as busy */ | |
255871c5 KB |
756 | ev->ev_cmd = 0; |
757 | ev->ev_opts = 0; | |
d55465de SL |
758 | ev->ev_error = 0; |
759 | ev->ev_flags = 0; | |
760 | ev->ev_count = 0; | |
761 | ev->ev_status = EVSTATUS_BUSY; | |
762 | /* adjust pointer to next available inbound entry */ | |
763 | adjptr(mp->mp_on, MPINSET); | |
764 | splx(s); | |
765 | return (ev); | |
766 | bad: | |
767 | splx(s); | |
255871c5 KB |
768 | log(LOG_ERR, "mp%d: port%d, out of events\n", |
769 | MPUNIT(unit), MPPORT(unit)); | |
d55465de SL |
770 | return ((struct mpevent *)0); |
771 | } | |
772 | ||
773 | mpmodem(unit, flag) | |
774 | int unit, flag; | |
775 | { | |
776 | struct mpsoftc *ms = &mp_softc[MPUNIT(unit)]; | |
777 | int port = MPPORT(unit); | |
778 | register struct mpport *mp; | |
d55465de SL |
779 | register struct asyncparam *asp; |
780 | ||
781 | mp = &ms->ms_mb->mb_port[port]; | |
d55465de SL |
782 | asp = &ms->ms_async[port][mp->mp_on?mp->mp_on-1:MPINSET-1]; |
783 | if (flag == MMOD_ON) { | |
240fb450 | 784 | if (1 || ms->ms_softCAR & (1 << port))/* XXX HARDWIRE FOR NOW */ |
d55465de SL |
785 | setm(&asp->ap_modem, A_DTR, ASSERT); |
786 | else | |
787 | setm(&asp->ap_modem, A_DTR, AUTO); | |
788 | seti(&asp->ap_intena, A_DCD); | |
789 | } else { | |
790 | setm(&asp->ap_modem, 0, DROP); | |
791 | seti(&asp->ap_intena, 0); | |
792 | } | |
d55465de SL |
793 | } |
794 | ||
795 | /* | |
796 | * Set up the modem control structure according to mask. | |
797 | * Each set bit in the mask means assert the corresponding | |
798 | * modem control line, otherwise, it will be dropped. | |
799 | * RTS is special since it can either be asserted, dropped | |
800 | * or put in auto mode for auto modem control. | |
801 | */ | |
802 | static | |
803 | setm(mc, mask, rts) | |
804 | register struct mdmctl *mc; | |
805 | register int mask; | |
806 | { | |
807 | ||
808 | mc->mc_rngdsr = (mask & A_RNGDSR) ? ASSERT : DROP; | |
809 | mc->mc_rate = (mask & A_RATE) ? ASSERT : DROP; | |
810 | mc->mc_dcd = (mask & A_DCD) ? ASSERT : DROP; | |
811 | mc->mc_sectx = (mask & A_SECTX) ? ASSERT : DROP; | |
812 | mc->mc_cts = (mask & A_CTS) ? ASSERT : DROP; | |
813 | mc->mc_secrx = (mask & A_SECRX) ? ASSERT : DROP; | |
814 | mc->mc_dtr = (mask & A_DTR) ? ASSERT : DROP; | |
815 | mc->mc_rts = rts; | |
816 | } | |
817 | ||
818 | /* | |
819 | * Set up the status change enable field from mask. | |
820 | * When a signal is enabled in this structure and | |
821 | * and a change in state on a corresponding modem | |
822 | * control line occurs, a status change event will | |
823 | * be delivered to the host. | |
824 | */ | |
825 | static | |
826 | seti(mc, mask) | |
827 | register struct mdmctl *mc; | |
828 | register int mask; | |
829 | { | |
830 | ||
831 | mc->mc_rngdsr = (mask & A_RNGDSR) ? MDM_ON : MDM_OFF; | |
832 | mc->mc_rate = (mask & A_RATE) ? MDM_ON : MDM_OFF; | |
833 | mc->mc_dcd = (mask & A_DCD) ? MDM_ON : MDM_OFF; | |
834 | mc->mc_sectx = (mask & A_SECTX) ? MDM_ON : MDM_OFF; | |
835 | mc->mc_cts = (mask & A_CTS) ? MDM_ON : MDM_OFF; | |
836 | mc->mc_secrx = (mask & A_SECRX) ? MDM_ON : MDM_OFF; | |
837 | mc->mc_dtr = (mask & A_DTR) ? MDM_ON : MDM_OFF; | |
838 | mc->mc_rts = (mask & A_RTS) ? MDM_ON : MDM_OFF; | |
839 | } | |
840 | ||
841 | mpcleanport(mb, port) | |
842 | struct mblok *mb; | |
843 | int port; | |
844 | { | |
845 | register struct mpport *mp; | |
846 | register struct tty *tp; | |
847 | ||
848 | mp = &mb->mb_port[port]; | |
849 | if (mp->mp_proto == MPPROTO_ASYNC) { | |
850 | mp->mp_flags = MP_REMBSY; | |
5db86c85 | 851 | /* signal loss of carrier and close */ |
d55465de | 852 | tp = &mp_tty[mb->mb_unit*MPCHUNK+port]; |
d55465de | 853 | ttyflush(tp, FREAD|FWRITE); |
5db86c85 | 854 | (void) (*linesw[tp->t_line].l_modem)(tp, 0); |
d55465de SL |
855 | } |
856 | } | |
857 | ||
858 | mpclean(mb, port) | |
859 | register struct mblok *mb; | |
860 | int port; | |
861 | { | |
862 | register struct mpport *mp; | |
863 | register struct mpevent *ev; | |
864 | register int i; | |
5db86c85 | 865 | u_char list[2]; |
d55465de SL |
866 | int unit; |
867 | ||
868 | mp = &mb->mb_port[port]; | |
869 | unit = mb->mb_unit; | |
870 | for (i = mp->mp_off; i != mp->mp_on; i = (i+1 % MPINSET)) { | |
871 | ev = &mp->mp_recvq[i]; | |
872 | ev->ev_error = ENXIO; | |
873 | ev->ev_status = EVSTATUS_DONE; | |
874 | } | |
875 | list[0] = port, list[1] = MPPORT_EOL; | |
876 | mpxintr(unit, list); | |
877 | mprintr(unit, list); | |
878 | /* Clear async for port */ | |
879 | mp->mp_proto = MPPROTO_UNUSED; | |
880 | mp->mp_flags = 0; | |
881 | mp->mp_on = 0; | |
882 | mp->mp_off = 0; | |
883 | mp->mp_nextrcv = 0; | |
884 | ||
885 | mp_tty[unit*MPCHUNK + port].t_state = 0; | |
886 | for (ev = &mp->mp_sendq[0]; ev < &mp->mp_sendq[MPOUTSET]; ev++) { | |
887 | ev->ev_status = EVSTATUS_FREE; | |
888 | ev->ev_cmd = 0; | |
889 | ev->ev_error = 0; | |
890 | ev->ev_un.rcvblk = 0; | |
891 | ev->ev_params = 0; | |
892 | } | |
893 | for (ev = &mp->mp_recvq[0]; ev < &mp->mp_recvq[MPINSET]; ev++) { | |
894 | ev->ev_status = EVSTATUS_FREE; | |
895 | ev->ev_cmd = 0; | |
896 | ev->ev_error = 0; | |
897 | ev->ev_params = 0; | |
898 | } | |
899 | } | |
900 | ||
901 | /* | |
902 | * MPCC interrupt handler. | |
903 | */ | |
904 | mpintr(mpcc) | |
905 | int mpcc; | |
906 | { | |
907 | register struct mblok *mb; | |
908 | register struct his *his; | |
d55465de SL |
909 | |
910 | mb = mp_softc[mpcc].ms_mb; | |
911 | if (mb == 0) { | |
912 | printf("mp%d: stray interrupt\n", mpcc); | |
913 | return; | |
914 | } | |
915 | his = &mb->mb_hostint; | |
916 | his->semaphore &= ~MPSEMA_AVAILABLE; | |
917 | /* | |
918 | * Check for events to be processed. | |
919 | */ | |
920 | if (his->proto[MPPROTO_ASYNC].outbdone[0] != MPPORT_EOL) | |
921 | mprintr(mpcc, his->proto[MPPROTO_ASYNC].outbdone); | |
922 | if (his->proto[MPPROTO_ASYNC].inbdone[0] != MPPORT_EOL) | |
923 | mpxintr(mpcc, his->proto[MPPROTO_ASYNC].inbdone); | |
924 | if (mb->mb_harderr || mb->mb_softerr) | |
925 | mperror(mb, mpcc); | |
926 | his->semaphore |= MPSEMA_AVAILABLE; | |
927 | } | |
928 | ||
929 | /* | |
930 | * Handler for processing completion of transmitted events. | |
931 | */ | |
932 | mpxintr(unit, list) | |
5db86c85 | 933 | register u_char *list; |
d55465de SL |
934 | { |
935 | register struct mpport *mp; | |
936 | register struct mpevent *ev; | |
937 | register struct mblok *mb; | |
938 | register struct tty *tp; | |
939 | register struct asyncparam *ap; | |
940 | struct mpsoftc *ms; | |
941 | int port, i, j; | |
255871c5 | 942 | # define nextevent(mp) &mp->mp_recvq[mp->mp_off] |
d55465de SL |
943 | |
944 | ms = &mp_softc[unit]; | |
945 | mb = mp_softc[unit].ms_mb; | |
946 | for (j = 0; j < MPMAXPORT && ((port = *list++) != MPPORT_EOL); j++) { | |
947 | /* | |
948 | * Process each completed entry in the inbound queue. | |
949 | */ | |
950 | mp = &mb->mb_port[port]; | |
951 | tp = &mp_tty[unit*MPCHUNK + port]; | |
d55465de | 952 | ev = nextevent(mp); |
255871c5 | 953 | for (; ev->ev_status & EVSTATUS_DONE; ev = nextevent(mp)) { |
d55465de SL |
954 | /* YUCK */ |
955 | ap = &ms->ms_async[port][mp->mp_off]; | |
5db86c85 | 956 | mppurge((caddr_t)ap, (int)sizeof (*ap)); |
d55465de SL |
957 | switch (ev->ev_cmd) { |
958 | case EVCMD_OPEN: | |
959 | /* | |
960 | * Open completion, start all reads and | |
961 | * assert modem status information. | |
962 | */ | |
963 | for (i = 0; i < MPOUTSET; i++) | |
964 | mp->mp_sendq[i].ev_status = EVSTATUS_GO; | |
965 | (*linesw[tp->t_line].l_modem) | |
966 | (tp, ap->ap_modem.mc_dcd == ASSERT); | |
255871c5 KB |
967 | mp_freein(ev); |
968 | adjptr(mp->mp_off, MPINSET); | |
969 | mp->mp_proto = MPPROTO_ASYNC; /* XXX */ | |
970 | wakeup((caddr_t)&tp->t_canq); | |
d55465de SL |
971 | break; |
972 | case EVCMD_CLOSE: | |
973 | /* | |
974 | * Close completion, flush all pending | |
975 | * transmissions, free resources, and | |
976 | * cleanup mpcc port state. | |
977 | */ | |
978 | for (i = 0; i < MPOUTSET; i++) { | |
979 | mp->mp_sendq[i].ev_status = | |
980 | EVSTATUS_FREE; | |
981 | mp->mp_sendq[i].ev_un.rcvblk = 0; | |
982 | mp->mp_sendq[i].ev_params = 0; | |
983 | } | |
255871c5 KB |
984 | mp_freein(ev); |
985 | adjptr(mp->mp_off, MPINSET); | |
986 | tp->t_state &= ~(TS_CARR_ON|TS_BUSY|TS_FLUSH); | |
d55465de SL |
987 | mp->mp_on = mp->mp_off = mp->mp_nextrcv = 0; |
988 | mp->mp_flags &= ~MP_PROGRESS; | |
989 | mp->mp_proto = MPPROTO_UNUSED; | |
30a58bac | 990 | wakeup((caddr_t)&tp->t_canq); |
255871c5 | 991 | break; |
d55465de | 992 | case EVCMD_IOCTL: |
255871c5 KB |
993 | mp_freein(ev); |
994 | adjptr(mp->mp_off, MPINSET); | |
995 | mp->mp_flags &= ~MP_IOCTL; | |
996 | wakeup((caddr_t)&tp->t_canq); | |
d55465de SL |
997 | break; |
998 | case EVCMD_WRITE: | |
999 | /* | |
1000 | * Transmission completed, update tty | |
1001 | * state and restart output. | |
1002 | */ | |
255871c5 KB |
1003 | if (ev->ev_opts != A_FLUSH) { |
1004 | tp->t_state &= ~TS_BUSY; | |
1005 | if (tp->t_state & TS_FLUSH) | |
1006 | tp->t_state &= ~TS_FLUSH; | |
1007 | else { | |
1008 | register int cc = 0, n; | |
1009 | struct hxmtl *hxp; | |
d55465de | 1010 | |
255871c5 KB |
1011 | hxp = &ms->ms_hxl[port]; |
1012 | for (n=0;n < ev->ev_count; n++) | |
1013 | cc += hxp->size[n]; | |
1014 | ndflush(&tp->t_outq, cc); | |
1015 | } | |
d55465de SL |
1016 | } |
1017 | switch (ev->ev_error) { | |
1018 | case A_SIZERR: /*# error in xmt data size */ | |
1019 | mplog(unit, port, A_XSIZE, 0); | |
1020 | break; | |
1021 | case A_NXBERR: /*# no more xmt evt buffers */ | |
1022 | mplog(unit, port, A_NOXBUF, 0); | |
1023 | break; | |
1024 | } | |
255871c5 KB |
1025 | mp_freein(ev); |
1026 | adjptr(mp->mp_off, MPINSET); | |
d55465de SL |
1027 | mpstart(tp); |
1028 | break; | |
1029 | default: | |
5db86c85 | 1030 | mplog(unit, port, A_INVCMD, (int)ev->ev_cmd); |
255871c5 KB |
1031 | mp_freein(ev); |
1032 | adjptr(mp->mp_off, MPINSET); | |
d55465de SL |
1033 | break; |
1034 | } | |
d55465de | 1035 | } |
d55465de | 1036 | } |
255871c5 KB |
1037 | #undef nextevent |
1038 | } | |
1039 | ||
1040 | mp_freein(ev) | |
1041 | register struct mpevent *ev; | |
1042 | { | |
1043 | /* re-init all values in this entry */ | |
1044 | ev->ev_cmd = 0; | |
1045 | ev->ev_opts = 0; | |
1046 | ev->ev_error = 0; | |
1047 | ev->ev_flags = 0; | |
1048 | ev->ev_count = 0; | |
1049 | /* show this entry is available for use */ | |
1050 | ev->ev_status = EVSTATUS_FREE; | |
d55465de SL |
1051 | } |
1052 | ||
1053 | /* | |
1054 | * Handler for processing received events. | |
1055 | */ | |
1056 | mprintr(unit, list) | |
5db86c85 | 1057 | u_char *list; |
d55465de SL |
1058 | { |
1059 | register struct tty *tp; | |
1060 | register struct mpport *mp; | |
1061 | register struct mpevent *ev; | |
1062 | struct mblok *mb; | |
1063 | register int cc; | |
1064 | register char *cp; | |
1065 | struct mpsoftc *ms; | |
1066 | caddr_t ptr; | |
1067 | char *rcverr; | |
1068 | int port, i; | |
1069 | ||
1070 | ms = &mp_softc[unit]; | |
1071 | mb = mp_softc[unit].ms_mb; | |
1072 | for (i = 0; i < MPMAXPORT && (port = *list++) != MPPORT_EOL; i++) { | |
1073 | tp = &mp_tty[unit*MPCHUNK + port]; | |
1074 | mp = &mb->mb_port[port]; | |
1075 | ev = &mp->mp_sendq[mp->mp_nextrcv]; | |
1076 | while (ev->ev_status & EVSTATUS_DONE) { | |
255871c5 KB |
1077 | switch(ev->ev_cmd) { |
1078 | case EVCMD_STATUS: | |
d55465de SL |
1079 | /* |
1080 | * Status change, look for carrier changes. | |
1081 | */ | |
255871c5 KB |
1082 | switch(ev->ev_opts) { |
1083 | case DCDASRT: | |
1084 | (*linesw[tp->t_line].l_modem)(tp, 1); | |
1085 | wakeup((caddr_t)&tp->t_canq); | |
1086 | break; | |
1087 | case DCDDROP: | |
1088 | (*linesw[tp->t_line].l_modem)(tp, 0); | |
1089 | wakeup((caddr_t)&tp->t_canq); | |
1090 | break; | |
1091 | case NORBUF: | |
1092 | case NOEBUF: | |
1093 | mplog(unit, port, | |
1094 | "out of receive events", 0); | |
1095 | break; | |
1096 | default: | |
d55465de SL |
1097 | mplog(unit, port, |
1098 | "unexpect status command", | |
5db86c85 | 1099 | (int)ev->ev_opts); |
255871c5 KB |
1100 | break; |
1101 | } | |
d55465de | 1102 | break; |
255871c5 KB |
1103 | case EVCMD_READ: |
1104 | /* | |
1105 | * Process received data. | |
1106 | */ | |
1107 | if ((tp->t_state & TS_ISOPEN) == 0) { | |
1108 | wakeup((caddr_t)&tp->t_rawq); | |
1109 | break; | |
1110 | } | |
1111 | if ((cc = ev->ev_count) == 0) | |
1112 | break; | |
1113 | cp = ms->ms_cbuf[port][mp->mp_nextrcv]; | |
1114 | mppurge(cp, CBSIZE); | |
1115 | while (cc-- > 0) { | |
1116 | /* | |
1117 | * A null character is inserted, | |
1118 | * potentially when a break or framing | |
1119 | * error occurs. If we're not in raw | |
1120 | * mode, substitute the interrupt | |
1121 | * character. | |
1122 | */ | |
240fb450 | 1123 | /*** XXX - FIXUP ***/ |
255871c5 KB |
1124 | if (*cp == 0 && |
1125 | (ev->ev_error == BRKASRT || | |
1126 | ev->ev_error == FRAMERR)) | |
1127 | if ((tp->t_flags&RAW) == 0) | |
240fb450 MT |
1128 | ; |
1129 | /* XXX was break */ | |
255871c5 KB |
1130 | (*linesw[tp->t_line].l_rint)(*cp++, tp); |
1131 | } | |
1132 | /* setup for next read */ | |
1133 | ptr = (caddr_t)&mp_softc[unit].ms_cbuf[port][mp->mp_nextrcv][0]; | |
1134 | ev->ev_un.rcvblk = (u_char *)kvtophys(ptr); | |
1135 | ev->ev_params = (caddr_t) kvtophys(ptr); | |
1136 | switch(ev->ev_error) { | |
1137 | case RCVDTA: | |
1138 | /* Normal (good) rcv data do not | |
1139 | * report the following they are | |
1140 | * "normal" errors | |
1141 | */ | |
1142 | case FRAMERR: | |
1143 | /* frame error */ | |
1144 | case BRKASRT: | |
1145 | /* Break condition */ | |
1146 | case PARERR: | |
1147 | /* parity error */ | |
1148 | rcverr = (char *)0; | |
1149 | break; | |
1150 | case OVRNERR: | |
1151 | /* Overrun error */ | |
1152 | rcverr = "overrun error"; | |
1153 | break; | |
1154 | case OVFERR: | |
1155 | /* Overflow error */ | |
1156 | rcverr = "overflow error"; | |
1157 | break; | |
1158 | default: | |
1159 | rcverr = "undefined rcv error"; | |
1160 | break; | |
1161 | } | |
1162 | if (rcverr != (char *)0) | |
1163 | mplog(unit, port, rcverr, | |
1164 | (int)ev->ev_error); | |
d55465de SL |
1165 | break; |
1166 | default: | |
255871c5 KB |
1167 | mplog(unit, port, "unexpected command", |
1168 | (int)ev->ev_cmd); | |
1169 | break; | |
d55465de | 1170 | } |
d55465de SL |
1171 | ev->ev_cmd = 0; |
1172 | ev->ev_opts = 0; | |
1173 | ev->ev_error = 0; | |
1174 | ev->ev_flags = 0; | |
255871c5 | 1175 | ev->ev_count = 0; |
d55465de SL |
1176 | ev->ev_status = EVSTATUS_GO; /* start next read */ |
1177 | adjptr(mp->mp_nextrcv, MPOUTSET); | |
1178 | ev = &mp->mp_sendq[mp->mp_nextrcv]; | |
1179 | } | |
1180 | } | |
1181 | } | |
1182 | ||
1183 | /* | |
1184 | * Log an mpcc diagnostic. | |
1185 | */ | |
1186 | mplog(unit, port, cp, flags) | |
1187 | char *cp; | |
1188 | { | |
1189 | ||
1190 | if (flags) | |
1191 | log(LOG_ERR, "mp%d: port%d, %s (%d)\n", | |
1192 | unit, port, cp, flags); | |
1193 | else | |
1194 | log(LOG_ERR, "mp%d: port%d, %s\n", unit, port, cp); | |
1195 | } | |
1196 | ||
1197 | int MPHOSTINT = 1; | |
1198 | ||
1199 | mptimeint(mb) | |
1200 | register struct mblok *mb; | |
1201 | { | |
1202 | ||
1203 | mb->mb_mpintcnt = 0; | |
1204 | mb->mb_mpintclk = (caddr_t)0; | |
1205 | *(u_short *)mpinfo[mb->mb_unit]->ui_addr = 2; | |
1206 | } | |
1207 | ||
1208 | /* | |
1209 | * Interupt mpcc | |
1210 | */ | |
1211 | mpintmpcc(mb, port) | |
1212 | register struct mblok *mb; | |
d55465de SL |
1213 | { |
1214 | ||
1215 | mb->mb_intr[port] |= MPSEMA_WORK; | |
1216 | if (++mb->mb_mpintcnt == MPHOSTINT) { | |
1217 | mb->mb_mpintcnt = 0; | |
1218 | *(u_short *)mpinfo[mb->mb_unit]->ui_addr = 2; | |
1219 | if (mb->mb_mpintclk) { | |
5db86c85 | 1220 | untimeout(mptimeint, (caddr_t)mb); |
d55465de SL |
1221 | mb->mb_mpintclk = 0; |
1222 | } | |
1223 | } else { | |
1224 | if (mb->mb_mpintclk == 0) { | |
5db86c85 | 1225 | timeout(mptimeint, (caddr_t)mb, 4); |
d55465de SL |
1226 | mb->mb_mpintclk = (caddr_t)1; |
1227 | } | |
1228 | } | |
1229 | } | |
1230 | ||
1231 | static char *mpherrmsg[] = { | |
1232 | "", | |
1233 | "Bus error", /* MPBUSERR */ | |
1234 | "Address error", /* ADDRERR */ | |
1235 | "Undefined ecc interrupt", /* UNDECC */ | |
1236 | "Undefined interrupt", /* UNDINT */ | |
1237 | "Power failure occurred", /* PWRFL */ | |
1238 | "Stray transmit done interrupt", /* NOXENTRY */ | |
1239 | "Two fast timers on one port", /* TWOFTMRS */ | |
1240 | "Interrupt queue full", /* INTQFULL */ | |
1241 | "Interrupt queue ack error", /* INTQERR */ | |
1242 | "Uncorrectable dma parity error", /* CBPERR */ | |
1243 | "32 port ACAP failed power up", /* ACPDEAD */ | |
1244 | }; | |
1245 | #define NHERRS (sizeof (mpherrmsg) / sizeof (mpherrmsg[0])) | |
1246 | ||
1247 | mperror(mb, unit) | |
1248 | register struct mblok *mb; | |
1249 | int unit; | |
1250 | { | |
1251 | register char *cp; | |
1252 | register int i; | |
1253 | ||
1254 | if (mb->mb_softerr) { | |
1255 | switch (mb->mb_softerr) { | |
1256 | case DMAPERR: /* dma parity error */ | |
1257 | cp = "dma parity error"; | |
1258 | break; | |
1259 | case ECCERR: | |
1260 | cp = "local memory ecc error"; | |
1261 | break; | |
1262 | default: | |
1263 | cp = "unknown error"; | |
1264 | break; | |
1265 | } | |
1266 | log(LOG_ERR, "mp%d: soft error, %s", unit, cp); | |
1267 | mb->mb_softerr = 0; | |
1268 | } | |
1269 | if (mb->mb_harderr) { | |
1270 | if (mb->mb_harderr < NHERRS) | |
1271 | cp = mpherrmsg[mb->mb_harderr]; | |
1272 | else | |
1273 | cp = "unknown error"; | |
1274 | log(LOG_ERR, "mp%d: hard error, %s", unit, cp); | |
1275 | if (mb->mb_status == MP_OPOPEN) { | |
1276 | for (i = 0; i < MPMAXPORT; i++) { | |
1277 | mpcleanport(mb, i); | |
1278 | mb->mb_proto[i] = MPPROTO_UNUSED; | |
1279 | } | |
1280 | } | |
1281 | mb->mb_harderr = 0; | |
1282 | mb->mb_status = 0; | |
1283 | } | |
1284 | } | |
1285 | ||
1286 | mppurge(addr, cc) | |
1287 | register caddr_t addr; | |
1288 | register int cc; | |
1289 | { | |
1290 | ||
1291 | for (; cc >= 0; addr += NBPG, cc -= NBPG) | |
1292 | mtpr(P1DC, addr); | |
1293 | } | |
1294 | ||
1295 | /* | |
1296 | * MPCC Download Pseudo-device. | |
1297 | */ | |
1298 | char mpdlbuf[MPDLBUFSIZE]; | |
1299 | int mpdlbusy; /* interlock on download buffer */ | |
1300 | int mpdlerr; | |
1301 | ||
1302 | mpdlopen(dev) | |
1303 | dev_t dev; | |
1304 | { | |
1305 | int unit, mpu; | |
1306 | struct vba_device *vi; | |
1307 | ||
1308 | unit = minor(dev); | |
1309 | mpu = MPUNIT(unit); | |
1310 | if (mpu >= NMP || (vi = mpinfo[mpu]) == 0 || vi->ui_alive == 0) | |
1311 | return (ENODEV); | |
1312 | return (0); | |
1313 | } | |
1314 | ||
1315 | mpdlwrite(dev, uio) | |
1316 | dev_t dev; | |
1317 | struct uio *uio; | |
1318 | { | |
1319 | register struct mpsoftc *ms = &mp_softc[MPUNIT(minor(dev))]; | |
1320 | register struct mpdl *dl; | |
1321 | int error; | |
1322 | ||
1323 | if (ms->ms_mb == 0 || ms->ms_mb->mb_status != MP_DLOPEN) | |
1324 | return (EFAULT); | |
1325 | dl = &ms->ms_mb->mb_dl; | |
1326 | dl->mpdl_count = uio->uio_iov->iov_len; | |
5db86c85 | 1327 | dl->mpdl_data = (caddr_t) kvtophys(mpdlbuf); |
d09985e2 | 1328 | if (error = uiomove(mpdlbuf, (int)dl->mpdl_count, uio)) |
d55465de SL |
1329 | return (error); |
1330 | uio->uio_resid -= dl->mpdl_count; /* set up return from write */ | |
1331 | dl->mpdl_cmd = MPDLCMD_NORMAL; | |
1332 | error = mpdlwait(dl); | |
1333 | return (error); | |
1334 | } | |
1335 | ||
1336 | mpdlclose(dev) | |
1337 | dev_t dev; | |
1338 | { | |
1339 | register struct mblok *mb = mp_softc[MPUNIT(minor(dev))].ms_mb; | |
d55465de SL |
1340 | |
1341 | if (mb == 0 || mb->mb_status != MP_DLDONE) { | |
1342 | mpbogus.status = 0; | |
1343 | if (mpbogus.mb == mpbogus.mbloks[MPUNIT(minor(dev))]) | |
1344 | mpdlbusy--; | |
1345 | return (EEXIST); | |
1346 | } | |
1347 | mb->mb_status = MP_OPOPEN; | |
1348 | mpbogus.status = 0; | |
1349 | /* set to dead, for board handshake */ | |
1350 | mb->mb_hostint.imok = MPIMOK_DEAD; | |
1351 | return (0); | |
1352 | } | |
1353 | ||
5db86c85 | 1354 | /* ARGSUSED */ |
d55465de SL |
1355 | mpdlioctl(dev, cmd, data, flag) |
1356 | dev_t dev; | |
1357 | caddr_t data; | |
1358 | { | |
1359 | register struct mblok *mb; | |
1360 | register struct mpdl *dl; | |
0658cf79 | 1361 | int unit, error = 0, s, i; |
d55465de SL |
1362 | |
1363 | mb = mp_softc[unit=MPUNIT(minor(dev))].ms_mb; | |
1364 | if (mb == 0) | |
0658cf79 | 1365 | return (EEXIST); |
d55465de SL |
1366 | dl = &mb->mb_dl; |
1367 | error = 0; | |
1368 | switch (cmd) { | |
1369 | case MPIOPORTMAP: | |
1370 | bcopy(data, (caddr_t)mb->mb_proto, sizeof (mb->mb_proto)); | |
1371 | break; | |
1372 | case MPIOHILO: | |
1373 | bcopy(data, (caddr_t)&mb->mb_hiport, 2*(sizeof(mb->mb_hiport))); | |
1374 | break; | |
1375 | case MPIOENDDL: | |
1376 | dl->mpdl_count = 0; | |
1377 | dl->mpdl_data = 0; | |
1378 | dl->mpdl_cmd = MPIOENDDL&IOCPARM_MASK; | |
1379 | error = mpdlwait(dl); | |
1380 | mpccinit(unit); | |
1381 | mb->mb_status = MP_DLDONE; | |
1382 | mpdlbusy--; | |
1383 | break; | |
1384 | case MPIOENDCODE: | |
1385 | dl->mpdl_count = 0; | |
1386 | dl->mpdl_data = 0; | |
1387 | dl->mpdl_cmd = MPIOENDCODE&IOCPARM_MASK; | |
1388 | error = mpdlwait(dl); | |
1389 | break; | |
1390 | case MPIOASYNCNF: | |
1391 | bcopy(data, mpdlbuf, sizeof (struct abdcf)); | |
5db86c85 | 1392 | dl->mpdl_data = (caddr_t) kvtophys(mpdlbuf); |
d55465de SL |
1393 | dl->mpdl_count = sizeof (struct abdcf); |
1394 | dl->mpdl_cmd = MPIOASYNCNF&IOCPARM_MASK; | |
1395 | error = mpdlwait(dl); | |
1396 | break; | |
1397 | case MPIOSTARTDL: | |
0658cf79 | 1398 | s = spl8(); |
d55465de | 1399 | while (mpdlbusy) |
0658cf79 MK |
1400 | if (error = tsleep((caddr_t)&mpdlbusy, |
1401 | (PZERO+1) | PCATCH, devioc, 0)) | |
1402 | break; | |
1403 | splx(s); | |
1404 | if (error) | |
1405 | break; | |
d55465de SL |
1406 | mpdlbusy++; |
1407 | /* initialize the downloading interface */ | |
1408 | mpbogus.magic = MPMAGIC; | |
1409 | mpbogus.mb = mpbogus.mbloks[unit]; | |
1410 | mpbogus.status = 1; | |
1411 | dl->mpdl_status = EVSTATUS_FREE; | |
1412 | dl->mpdl_count = 0; | |
1413 | dl->mpdl_cmd = 0; | |
1414 | dl->mpdl_data = (char *) 0; | |
1415 | mpdlerr = 0; | |
1416 | mb->mb_magic = MPMAGIC; | |
1417 | mb->mb_ivec = mp_softc[unit].ms_ivec+1; /* download vector */ | |
1418 | mb->mb_status = MP_DLPEND; | |
1419 | mb->mb_diagswitch[0] = 'A'; | |
1420 | mb->mb_diagswitch[1] = 'P'; | |
1421 | s = spl8(); | |
1422 | *(u_short *)mpinfo[unit]->ui_addr = 2; | |
0658cf79 MK |
1423 | error = tsleep((caddr_t)&mb->mb_status, (PZERO+1) | PCATCH, |
1424 | devio, 30*hz); | |
d55465de | 1425 | splx(s); |
0658cf79 | 1426 | if (error == EWOULDBLOCK) |
d55465de | 1427 | error = ETIMEDOUT; |
0658cf79 | 1428 | if (error) |
d55465de | 1429 | mpbogus.status = 0; |
5db86c85 | 1430 | bzero((caddr_t)mb->mb_port, sizeof (mb->mb_port)); |
d55465de SL |
1431 | break; |
1432 | case MPIORESETBOARD: | |
1433 | s = spl8(); | |
1434 | if (mb->mb_imokclk) | |
1435 | mb->mb_imokclk = 0; | |
1436 | *(u_short *)mpinfo[unit]->ui_addr = 0x100; | |
1437 | if (mb->mb_status == MP_DLOPEN || mb->mb_status == MP_DLDONE) { | |
1438 | mpdlerr = MP_DLERROR; | |
1439 | dl->mpdl_status = EVSTATUS_FREE; | |
1440 | wakeup((caddr_t)&dl->mpdl_status); | |
1441 | mpbogus.status = 0; | |
1442 | } | |
1443 | for (i = 0; i < MPMAXPORT; i++) { | |
1444 | if (mb->mb_harderr || mb->mb_softerr) | |
1445 | mperror(mb, i); | |
1446 | mpcleanport(mb, i); | |
1447 | mb->mb_proto[i] = MPPROTO_UNUSED; | |
1448 | } | |
1449 | mb->mb_status = 0; | |
1450 | splx(s); | |
1451 | break; | |
1452 | default: | |
1453 | error = EINVAL; | |
1454 | break; | |
1455 | } | |
1456 | return (error); | |
1457 | } | |
1458 | ||
1459 | mpccinit(unit) | |
1460 | int unit; | |
1461 | { | |
1462 | register struct mblok *mb = mp_softc[unit].ms_mb; | |
1463 | register struct his *his; | |
1464 | register int i, j; | |
1465 | ||
1466 | mb->mb_status = MP_DLDONE; | |
1467 | mb->mb_ivec = mp_softc[unit].ms_ivec; | |
1468 | mb->mb_magic = MPMAGIC; | |
1469 | /* Init host interface structure */ | |
1470 | his = &mb->mb_hostint; | |
1471 | his->semaphore = MPSEMA_AVAILABLE; | |
1472 | for (i = 0; i < NMPPROTO; i++) | |
1473 | for (j = 0; j < MPMAXPORT; j++) { | |
1474 | his->proto[i].inbdone[j] = MPPORT_EOL; | |
1475 | his->proto[i].outbdone[j] = MPPORT_EOL; | |
1476 | } | |
1477 | mb->mb_unit = unit; | |
1478 | } | |
1479 | ||
1480 | mpdlintr(mpcc) | |
1481 | int mpcc; | |
1482 | { | |
1483 | register struct mblok *mb; | |
1484 | register struct mpdl *dl; | |
1485 | ||
1486 | mb = mp_softc[mpcc].ms_mb; | |
1487 | if (mb == 0) { | |
1488 | printf("mp%d: stray download interrupt\n", mpcc); | |
1489 | return; | |
1490 | } | |
1491 | dl = &mb->mb_dl; | |
1492 | switch (mb->mb_status) { | |
1493 | case MP_DLOPEN: | |
1494 | if (dl->mpdl_status != EVSTATUS_DONE) | |
1495 | mpdlerr = MP_DLERROR; | |
1496 | dl->mpdl_status = EVSTATUS_FREE; | |
1497 | wakeup((caddr_t)&dl->mpdl_status); | |
1498 | return; | |
1499 | case MP_DLPEND: | |
1500 | mb->mb_status = MP_DLOPEN; | |
5db86c85 | 1501 | wakeup((caddr_t)&mb->mb_status); |
d55465de SL |
1502 | /* fall thru... */ |
1503 | case MP_DLTIME: | |
1504 | return; | |
1505 | case MP_OPOPEN: | |
1506 | if (mb->mb_imokclk) | |
1507 | mb->mb_imokclk = 0; | |
1508 | mb->mb_nointcnt = 0; /* reset no interrupt count */ | |
1509 | mb->mb_hostint.imok = MPIMOK_DEAD; | |
1510 | mb->mb_imokclk = (caddr_t)1; | |
1511 | break; | |
1512 | default: | |
1513 | log(LOG_ERR, "mp%d: mpdlintr, status %x\n", | |
1514 | mpcc, mb->mb_status); | |
1515 | break; | |
1516 | } | |
1517 | } | |
1518 | ||
d55465de SL |
1519 | /* |
1520 | * Wait for a transfer to complete or a timeout to occur. | |
1521 | */ | |
1522 | mpdlwait(dl) | |
1523 | register struct mpdl *dl; | |
1524 | { | |
1525 | int s, error = 0; | |
1526 | ||
1527 | s = spl8(); | |
1528 | dl->mpdl_status = EVSTATUS_GO; | |
1529 | while (dl->mpdl_status != EVSTATUS_FREE) { | |
0658cf79 MK |
1530 | error = tsleep((caddr_t)&dl->mpdl_status, (PZERO+1) | PCATCH, |
1531 | devout, 0); | |
d55465de SL |
1532 | if (mpdlerr == MP_DLERROR) |
1533 | error = EIO; | |
0658cf79 MK |
1534 | if (error) |
1535 | break; | |
d55465de SL |
1536 | } |
1537 | splx(s); | |
1538 | return (error); | |
1539 | } | |
1540 | #endif |