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 | * |
d09985e2 | 20 | * @(#)mp.c 7.10 (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 MT |
212 | while ((mp->mp_flags & MP_PROGRESS) || ((tp->t_state & TS_WOPEN) && |
213 | !(mode&O_NONBLOCK) && !(tp->t_cflag&CLOCAL))) | |
d55465de | 214 | sleep((caddr_t)&tp->t_canq, TTIPRI); |
255871c5 | 215 | restart: |
d55465de SL |
216 | tp->t_state |= TS_WOPEN; |
217 | tp->t_addr = (caddr_t)ms; | |
218 | tp->t_oproc = mpstart; | |
240fb450 | 219 | tp->t_param = mpparam; |
d55465de | 220 | tp->t_dev = dev; |
0eeaf15c KB |
221 | if ((tp->t_state & TS_ISOPEN) == 0) { |
222 | ttychars(tp); | |
223 | if (tp->t_ispeed == 0) { | |
240fb450 MT |
224 | tp->t_ispeed = TTYDEF_SPEED; |
225 | tp->t_ospeed = TTYDEF_SPEED; | |
226 | tp->t_iflag = TTYDEF_IFLAG; | |
227 | tp->t_oflag = TTYDEF_OFLAG; | |
228 | tp->t_lflag = TTYDEF_LFLAG; | |
229 | tp->t_cflag = TTYDEF_CFLAG; | |
0eeaf15c KB |
230 | } |
231 | /* | |
232 | * Initialize port state: init MPCC interface | |
233 | * structures for port and setup modem control. | |
234 | */ | |
0eeaf15c KB |
235 | error = mpportinit(ms, mp, port); |
236 | if (error) | |
237 | goto bad; | |
240fb450 | 238 | ev = mpparam2(tp, &tp->t_termios); |
0eeaf15c KB |
239 | if (ev == 0) { |
240 | error = ENOBUFS; | |
241 | goto bad; | |
242 | } | |
255871c5 | 243 | mp->mp_flags |= MP_PROGRESS; |
0eeaf15c | 244 | mpcmd(ev, EVCMD_OPEN, 0, ms->ms_mb, port); |
255871c5 KB |
245 | /* |
246 | * wait for port to start | |
247 | */ | |
248 | while (mp->mp_proto != MPPROTO_ASYNC) | |
249 | sleep((caddr_t)&tp->t_canq, TTIPRI); | |
240fb450 | 250 | ttsetwater(tp); |
255871c5 | 251 | mp->mp_flags &= ~MP_PROGRESS; |
d55465de | 252 | } |
240fb450 MT |
253 | while (!(mode&O_NONBLOCK) && !(tp->t_cflag&CLOCAL) && |
254 | (tp->t_state & TS_CARR_ON) == 0) { | |
d55465de | 255 | sleep((caddr_t)&tp->t_rawq, TTIPRI); |
255871c5 KB |
256 | /* |
257 | * a mpclose() might have disabled port. if so restart | |
258 | */ | |
259 | if (mp->mp_proto != MPPROTO_ASYNC) | |
260 | goto restart; | |
261 | tp->t_state |= TS_WOPEN; | |
262 | } | |
d55465de SL |
263 | error = (*linesw[tp->t_line].l_open)(dev,tp); |
264 | done: | |
265 | splx(s); | |
255871c5 KB |
266 | /* |
267 | * wakeup those processes waiting for the open to complete | |
268 | */ | |
d55465de | 269 | wakeup((caddr_t)&tp->t_canq); |
d55465de SL |
270 | return (error); |
271 | bad: | |
272 | tp->t_state &= ~TS_WOPEN; | |
273 | goto done; | |
274 | } | |
275 | ||
276 | /* | |
277 | * Close an mpcc port. | |
278 | */ | |
5db86c85 MK |
279 | /* ARGSUSED */ |
280 | mpclose(dev, flag) | |
d55465de SL |
281 | dev_t dev; |
282 | { | |
283 | register struct tty *tp; | |
284 | register struct mpport *mp; | |
285 | register struct mpevent *ev; | |
286 | int s, port, unit, error; | |
287 | struct mblok *mb; | |
288 | ||
289 | unit = minor(dev); | |
290 | tp = &mp_tty[unit]; | |
291 | port = MPPORT(unit); | |
292 | mb = mp_softc[MPUNIT(unit)].ms_mb; | |
293 | mp = &mb->mb_port[port]; | |
294 | s = spl8(); | |
255871c5 | 295 | if (mp->mp_flags & MP_PROGRESS) { |
d55465de SL |
296 | if (mp->mp_flags & MP_REMBSY) { |
297 | mp->mp_flags &= ~MP_REMBSY; | |
298 | splx(s); | |
299 | return (0); | |
300 | } | |
301 | while (mp->mp_flags & MP_PROGRESS) | |
255871c5 | 302 | sleep((caddr_t)&tp->t_canq, TTIPRI); |
d55465de SL |
303 | } |
304 | error = 0; | |
305 | mp->mp_flags |= MP_PROGRESS; | |
306 | (*linesw[tp->t_line].l_close)(tp); | |
255871c5 | 307 | ev = mp_getevent(mp, unit, 1); |
d55465de | 308 | if (ev == 0) { |
954f71cc KB |
309 | error = ENOBUFS; |
310 | mp->mp_flags &= ~MP_PROGRESS; | |
311 | goto out; | |
d55465de | 312 | } |
954f71cc KB |
313 | if (tp->t_state & TS_HUPCLS || (tp->t_state & TS_ISOPEN) == 0) |
314 | mpmodem(unit, MMOD_OFF); | |
315 | else | |
316 | mpmodem(unit, MMOD_ON); | |
d55465de | 317 | mpcmd(ev, EVCMD_CLOSE, 0, mb, port); |
954f71cc | 318 | ttyclose(tp); |
d55465de SL |
319 | out: |
320 | if (mp->mp_flags & MP_REMBSY) | |
321 | mpclean(mb, port); | |
255871c5 KB |
322 | else |
323 | while (mp->mp_flags & MP_PROGRESS) | |
324 | sleep((caddr_t)&tp->t_canq,TTIPRI); | |
d55465de SL |
325 | splx(s); |
326 | return (error); | |
327 | } | |
328 | ||
329 | /* | |
330 | * Read from an mpcc port. | |
331 | */ | |
240fb450 | 332 | mpread(dev, uio, flag) |
d55465de SL |
333 | dev_t dev; |
334 | struct uio *uio; | |
335 | { | |
336 | struct tty *tp; | |
337 | ||
338 | tp = &mp_tty[minor(dev)]; | |
240fb450 | 339 | return ((*linesw[tp->t_line].l_read)(tp, uio, flag)); |
d55465de SL |
340 | } |
341 | ||
342 | /* | |
343 | * Write to an mpcc port. | |
344 | */ | |
240fb450 | 345 | mpwrite(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_write)(tp, uio, flag)); |
d55465de SL |
353 | } |
354 | ||
355 | /* | |
356 | * Ioctl for a mpcc port | |
357 | */ | |
358 | mpioctl(dev, cmd, data, flag) | |
359 | dev_t dev; | |
360 | caddr_t data; | |
361 | { | |
362 | register struct tty *tp; | |
363 | register struct mpsoftc *ms; | |
d55465de | 364 | register struct mpport *mp; |
240fb450 | 365 | register struct mpevent *ev; |
d55465de SL |
366 | int s, port, error, unit; |
367 | struct mblok *mb; | |
368 | ||
369 | unit = minor(dev); | |
370 | tp = &mp_tty[unit]; | |
371 | ms = &mp_softc[MPUNIT(unit)]; | |
372 | mb = ms->ms_mb; | |
255871c5 KB |
373 | port = MPPORT(unit); |
374 | mp = &mb->mb_port[port]; | |
375 | if (mp->mp_proto != MPPROTO_ASYNC) | |
376 | return(ENXIO); | |
d55465de SL |
377 | error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag); |
378 | if (error >= 0) | |
379 | return (error); | |
380 | error = ttioctl(tp, cmd, data, flag); | |
240fb450 | 381 | if (error >= 0) |
d55465de | 382 | return (error); |
d55465de SL |
383 | switch (cmd) { |
384 | case TIOCSBRK: /* send break */ | |
385 | case TIOCCBRK: /* clear break */ | |
d55465de | 386 | s = spl8(); |
255871c5 KB |
387 | while (mp->mp_flags & MP_IOCTL) { |
388 | sleep((caddr_t)&tp->t_canq, TTIPRI); | |
389 | if (mp->mp_proto != MPPROTO_ASYNC) { | |
390 | mp->mp_flags &= ~MP_IOCTL; | |
391 | splx(s); | |
392 | return(ENXIO); | |
393 | } | |
394 | } | |
395 | ev = mp_getevent(mp, unit, 0); | |
396 | if (ev) { | |
397 | mp->mp_flags |= MP_IOCTL; | |
d55465de | 398 | mpcmd(ev, EVCMD_IOCTL, |
255871c5 KB |
399 | (cmd == TIOCSBRK ? A_BRKON : A_BRKOFF), mb, port); |
400 | } else | |
d55465de SL |
401 | error = ENOBUFS; |
402 | splx(s); | |
403 | break; | |
404 | case TIOCSDTR: /* set dtr control line */ | |
405 | break; | |
406 | case TIOCCDTR: /* clear dtr control line */ | |
407 | break; | |
408 | default: | |
409 | error = ENOTTY; | |
410 | break; | |
411 | } | |
412 | return (error); | |
413 | } | |
414 | ||
240fb450 MT |
415 | mpparam(tp, t) |
416 | struct tty *tp; | |
417 | struct termios *t; | |
418 | { | |
419 | register struct mpevent *ev; | |
420 | int unit = minor(tp->t_dev); | |
421 | struct mpsoftc *ms = &mp_softc[MPUNIT(unit)]; | |
422 | struct mblok *mb = ms->ms_mb; | |
423 | ||
424 | ev = mpparam2(tp, t); | |
425 | if (ev == 0) | |
426 | return (ENOBUFS); | |
427 | mpcmd(ev, EVCMD_IOCTL, A_CHGALL, mb, MPPORT(unit)); | |
428 | return (0); | |
429 | } | |
430 | ||
d55465de | 431 | struct mpevent * |
240fb450 MT |
432 | mpparam2(tp, t) |
433 | register struct tty *tp; | |
434 | struct termios *t; | |
d55465de SL |
435 | { |
436 | register struct mpevent *ev; | |
437 | register struct mpport *mp; | |
240fb450 | 438 | int unit = minor(tp->t_dev); |
d55465de SL |
439 | struct mblok *mb; |
440 | struct mpsoftc *ms; | |
441 | register struct asyncparam *asp; | |
240fb450 | 442 | int port, speedcode; |
d55465de SL |
443 | |
444 | ms = &mp_softc[MPUNIT(unit)]; | |
445 | mb = ms->ms_mb; | |
446 | port = MPPORT(unit); | |
447 | mp = &mb->mb_port[port]; | |
255871c5 | 448 | ev = mp_getevent(mp, unit, 0); /* XXX */ |
240fb450 MT |
449 | speedcode = ttspeedtab(t->c_ospeed, mpspeedtab); |
450 | if (ev == 0 || speedcode < 0) { | |
451 | printf("mp mpunit %d port %d param2 failed ev: %x speed %d, wanted %d\n", | |
452 | MPUNIT(unit), port, ev, speedcode, t->c_ospeed); | |
453 | return (0); /* XXX */ | |
454 | } | |
d55465de SL |
455 | /* YUCK */ |
456 | asp = &ms->ms_async[port][mp->mp_on?mp->mp_on-1:MPINSET-1]; | |
240fb450 MT |
457 | asp->ap_xon = t->c_cc[VSTART]; |
458 | asp->ap_xoff = t->c_cc[VSTOP]; | |
459 | if (!(t->c_iflag&IXON) || (asp->ap_xon == _POSIX_VDISABLE) || | |
460 | (asp->ap_xoff == _POSIX_VDISABLE)) | |
b532c831 KB |
461 | asp->ap_xena = MPA_DIS; |
462 | else | |
463 | asp->ap_xena = MPA_ENA; | |
240fb450 | 464 | asp->ap_xany = ((t->c_iflag & IXANY) ? MPA_ENA : MPA_DIS); |
d55465de | 465 | #ifdef notnow |
240fb450 | 466 | if (t->t_cflag&CSIZE) == CS8) { |
d55465de SL |
467 | #endif |
468 | asp->ap_data = MPCHAR_8; | |
469 | asp->ap_parity = MPPAR_NONE; | |
470 | #ifdef notnow | |
471 | } else { | |
472 | asp->ap_data = MPCHAR_7; | |
240fb450 | 473 | if ((t->c_flags & (EVENP|ODDP)) == ODDP) /* XXX */ |
d55465de SL |
474 | asp->ap_parity = MPPAR_ODD; |
475 | else | |
476 | asp->ap_parity = MPPAR_EVEN; | |
477 | } | |
478 | #endif | |
255871c5 KB |
479 | asp->ap_loop = MPA_DIS; /* disable loopback */ |
480 | asp->ap_rtimer = A_RCVTIM; /* default receive timer */ | |
240fb450 | 481 | if (t->c_ospeed == B110) |
d55465de SL |
482 | asp->ap_stop = MPSTOP_2; |
483 | else | |
484 | asp->ap_stop = MPSTOP_1; | |
240fb450 | 485 | if (t->c_ospeed == 0) { |
255871c5 KB |
486 | tp->t_state |= TS_HUPCLS; |
487 | setm(&asp->ap_modem, 0, DROP); | |
488 | seti(&asp->ap_intena, A_DCD); | |
489 | return (ev); | |
490 | } | |
240fb450 | 491 | if (t->c_ospeed == EXTA || t->c_ospeed == EXTB) |
d55465de SL |
492 | asp->ap_baud = M19200; |
493 | else | |
240fb450 MT |
494 | asp->ap_baud = speedcode; |
495 | if (1 || ms->ms_softCAR & (1<<port)) /* XXX HARDWIRE FOR NOW */ | |
d55465de SL |
496 | setm(&asp->ap_modem, A_DTR, ASSERT); |
497 | else | |
498 | setm(&asp->ap_modem, A_DTR, AUTO); | |
499 | seti(&asp->ap_intena, A_DCD); | |
240fb450 | 500 | return(ev); |
d55465de SL |
501 | } |
502 | ||
503 | mpstart(tp) | |
504 | register struct tty *tp; | |
505 | { | |
506 | register struct mpevent *ev; | |
507 | register struct mpport *mp; | |
508 | struct mblok *mb; | |
509 | struct mpsoftc *ms; | |
510 | int port, unit, xcnt, n, s, i; | |
511 | struct hxmtl *hxp; | |
512 | struct clist outq; | |
513 | ||
514 | s = spl8(); | |
515 | unit = minor(tp->t_dev); | |
516 | ms = &mp_softc[MPUNIT(unit)]; | |
517 | mb = ms->ms_mb; | |
518 | port = MPPORT(unit); | |
519 | mp = &mb->mb_port[port]; | |
520 | hxp = &ms->ms_hxl[port]; | |
521 | xcnt = 0; | |
522 | outq = tp->t_outq; | |
523 | for (i = 0; i < MPXMIT; i++) { | |
524 | if (tp->t_state & (TS_TIMEOUT|TS_BUSY|TS_TTSTOP)) | |
525 | break; | |
240fb450 | 526 | if (outq.c_cc <= tp->t_lowat) { |
d55465de SL |
527 | if (tp->t_state & TS_ASLEEP) { |
528 | tp->t_state &= ~TS_ASLEEP; | |
529 | wakeup((caddr_t)&tp->t_outq); | |
530 | } | |
531 | if (tp->t_wsel) { | |
532 | selwakeup(tp->t_wsel, tp->t_state & TS_WCOLL); | |
533 | tp->t_wsel = 0; | |
534 | tp->t_state &= ~TS_WCOLL; | |
535 | } | |
536 | } | |
537 | if (outq.c_cc == 0) | |
538 | break; | |
539 | /* | |
540 | * If we're not currently busy outputting, | |
541 | * and there is data to be output, set up | |
542 | * port transmit structure to send to mpcc. | |
543 | */ | |
240fb450 | 544 | if (1) /* || tp->t_flags & (RAW|LITOUT)) XXX FIX */ |
d55465de SL |
545 | n = ndqb(&outq, 0); |
546 | else { | |
547 | n = ndqb(&outq, 0200); | |
548 | if (n == 0) { | |
255871c5 KB |
549 | if (xcnt > 0) |
550 | break; | |
d55465de SL |
551 | n = getc(&outq); |
552 | timeout(ttrstrt, (caddr_t)tp, (n&0177)+6); | |
553 | tp->t_state |= TS_TIMEOUT; | |
554 | break; | |
555 | } | |
556 | } | |
5db86c85 | 557 | hxp->dblock[i] = (caddr_t)kvtophys(outq.c_cf); |
d55465de SL |
558 | hxp->size[i] = n; |
559 | xcnt++; /* count of xmts to send */ | |
560 | ndadvance(&outq, n); | |
561 | } | |
562 | /* | |
563 | * If data to send, poke mpcc. | |
564 | */ | |
565 | if (xcnt) { | |
255871c5 | 566 | ev = mp_getevent(mp, unit, 0); |
d55465de SL |
567 | if (ev == 0) { |
568 | tp->t_state &= ~(TS_BUSY|TS_TIMEOUT); | |
569 | } else { | |
570 | tp->t_state |= TS_BUSY; | |
571 | ev->ev_count = xcnt; | |
572 | mpcmd(ev, EVCMD_WRITE, 0, mb, MPPORT(unit)); | |
573 | } | |
574 | } | |
575 | splx(s); | |
576 | } | |
577 | ||
578 | /* | |
579 | * Advance cc bytes from q but don't free memory. | |
580 | */ | |
581 | ndadvance(q, cc) | |
582 | register struct clist *q; | |
583 | register cc; | |
584 | { | |
585 | register struct cblock *bp; | |
586 | char *end; | |
587 | int rem, s; | |
588 | ||
589 | s = spltty(); | |
590 | if (q->c_cc <= 0) | |
591 | goto out; | |
592 | while (cc>0 && q->c_cc) { | |
593 | bp = (struct cblock *)((int)q->c_cf & ~CROUND); | |
594 | if ((int)bp == (((int)q->c_cl-1) & ~CROUND)) { | |
595 | end = q->c_cl; | |
596 | } else { | |
597 | end = (char *)((int)bp + sizeof (struct cblock)); | |
598 | } | |
599 | rem = end - q->c_cf; | |
600 | if (cc >= rem) { | |
601 | cc -= rem; | |
602 | q->c_cc -= rem; | |
603 | q->c_cf = bp->c_next->c_info; | |
604 | } else { | |
605 | q->c_cc -= cc; | |
606 | q->c_cf += cc; | |
607 | break; | |
608 | } | |
609 | } | |
610 | if (q->c_cc <= 0) { | |
611 | q->c_cf = q->c_cl = NULL; | |
612 | q->c_cc = 0; | |
613 | } | |
614 | out: | |
615 | splx(s); | |
616 | } | |
617 | ||
618 | /* | |
619 | * Stop output on a line, e.g. for ^S/^Q or output flush. | |
620 | */ | |
5db86c85 | 621 | /* ARGSUSED */ |
d55465de SL |
622 | mpstop(tp, rw) |
623 | register struct tty *tp; | |
624 | int rw; | |
625 | { | |
255871c5 KB |
626 | register struct mpport *mp; |
627 | register struct mpevent *ev; | |
628 | int unit = minor(tp->t_dev); | |
629 | int port; | |
630 | struct mblok *mb; | |
5db86c85 | 631 | int s; |
d55465de SL |
632 | |
633 | s = spl8(); | |
d55465de | 634 | if (tp->t_state & TS_BUSY) { |
255871c5 | 635 | if ((tp->t_state & TS_TTSTOP) == 0) { |
d55465de | 636 | tp->t_state |= TS_FLUSH; |
255871c5 KB |
637 | port = MPPORT(unit); |
638 | mb = mp_softc[MPUNIT(unit)].ms_mb; | |
639 | mp = &mb->mb_port[port]; | |
640 | ev = mp_getevent(mp, unit, 0); | |
641 | if (ev == 0) { | |
642 | splx(s); | |
643 | return; | |
644 | } | |
645 | mpcmd(ev, EVCMD_WRITE, A_FLUSH, mb, port); | |
646 | } | |
d55465de SL |
647 | } |
648 | splx(s); | |
649 | } | |
650 | ||
651 | /* | |
652 | * Initialize an async port's MPCC state. | |
653 | */ | |
654 | mpportinit(ms, mp, port) | |
655 | register struct mpsoftc *ms; | |
656 | register struct mpport *mp; | |
657 | int port; | |
658 | { | |
659 | register struct mpevent *ev; | |
660 | register int i; | |
661 | caddr_t ptr; | |
662 | ||
663 | mp->mp_on = mp->mp_off = 0; | |
664 | mp->mp_nextrcv = 0; | |
665 | mp->mp_flags = 0; | |
666 | ev = &mp->mp_recvq[0]; | |
667 | for (i = 0; ev < &mp->mp_recvq[MPINSET]; ev++, i++) { | |
668 | ev->ev_status = EVSTATUS_FREE; | |
669 | ev->ev_cmd = 0; | |
670 | ev->ev_opts = 0; | |
671 | ev->ev_error = 0; | |
672 | ev->ev_flags = 0; | |
673 | ev->ev_count = 0; | |
5db86c85 MK |
674 | ev->ev_un.hxl = (struct hxmtl *) kvtophys(&ms->ms_hxl[port]); |
675 | ev->ev_params = (caddr_t) kvtophys(&ms->ms_async[port][i]); | |
d55465de SL |
676 | } |
677 | ev = &mp->mp_sendq[0]; | |
678 | for (i = 0; ev < &mp->mp_sendq[MPOUTSET]; ev++, i++) { | |
679 | /* init so that L2 can't send any events */ | |
680 | /* to host until open has completed */ | |
681 | ev->ev_status = EVSTATUS_FREE; | |
682 | ev->ev_cmd = 0; | |
255871c5 | 683 | ev->ev_opts = 0; |
d55465de SL |
684 | ev->ev_error = 0; |
685 | ev->ev_flags = 0; | |
686 | ev->ev_count = 0; | |
687 | ptr = (caddr_t) &ms->ms_cbuf[port][i][0]; | |
5db86c85 MK |
688 | ev->ev_un.rcvblk = (u_char *)kvtophys(ptr); |
689 | ev->ev_params = (caddr_t) kvtophys(ptr); | |
d55465de SL |
690 | } |
691 | return (0); | |
692 | } | |
693 | ||
694 | /* | |
695 | * Send an event to an mpcc. | |
696 | */ | |
697 | mpcmd(ev, cmd, flags, mb, port) | |
698 | register struct mpevent *ev; | |
699 | struct mblok *mb; | |
700 | { | |
701 | int s; | |
702 | ||
703 | s = spl8(); | |
704 | /* move host values to inbound entry */ | |
705 | ev->ev_cmd = cmd; | |
706 | ev->ev_opts = flags; | |
707 | /* show event ready for mpcc */ | |
708 | ev->ev_status = EVSTATUS_GO; | |
709 | mpintmpcc(mb, port); | |
710 | splx(s); | |
711 | } | |
712 | ||
713 | /* | |
714 | * Return the next available event entry for the indicated port. | |
715 | */ | |
716 | struct mpevent * | |
255871c5 | 717 | mp_getevent(mp, unit, cls_req) |
d55465de SL |
718 | register struct mpport *mp; |
719 | int unit; | |
255871c5 | 720 | int cls_req; |
d55465de SL |
721 | { |
722 | register struct mpevent *ev; | |
723 | int i, s; | |
724 | ||
725 | s = spl8(); | |
726 | ev = &mp->mp_recvq[mp->mp_on]; | |
727 | if (ev->ev_status != EVSTATUS_FREE) | |
728 | goto bad; | |
729 | /* | |
730 | * If not a close request, verify one extra | |
731 | * event is available for closing the port. | |
732 | */ | |
255871c5 | 733 | if (!cls_req) { |
d55465de SL |
734 | if ((i = mp->mp_on + 1) >= MPINSET) |
735 | i = 0; | |
736 | if (mp->mp_recvq[i].ev_status != EVSTATUS_FREE) | |
737 | goto bad; | |
738 | } | |
739 | /* init inbound fields marking this entry as busy */ | |
255871c5 KB |
740 | ev->ev_cmd = 0; |
741 | ev->ev_opts = 0; | |
d55465de SL |
742 | ev->ev_error = 0; |
743 | ev->ev_flags = 0; | |
744 | ev->ev_count = 0; | |
745 | ev->ev_status = EVSTATUS_BUSY; | |
746 | /* adjust pointer to next available inbound entry */ | |
747 | adjptr(mp->mp_on, MPINSET); | |
748 | splx(s); | |
749 | return (ev); | |
750 | bad: | |
751 | splx(s); | |
255871c5 KB |
752 | log(LOG_ERR, "mp%d: port%d, out of events\n", |
753 | MPUNIT(unit), MPPORT(unit)); | |
d55465de SL |
754 | return ((struct mpevent *)0); |
755 | } | |
756 | ||
757 | mpmodem(unit, flag) | |
758 | int unit, flag; | |
759 | { | |
760 | struct mpsoftc *ms = &mp_softc[MPUNIT(unit)]; | |
761 | int port = MPPORT(unit); | |
762 | register struct mpport *mp; | |
d55465de SL |
763 | register struct asyncparam *asp; |
764 | ||
765 | mp = &ms->ms_mb->mb_port[port]; | |
d55465de SL |
766 | asp = &ms->ms_async[port][mp->mp_on?mp->mp_on-1:MPINSET-1]; |
767 | if (flag == MMOD_ON) { | |
240fb450 | 768 | if (1 || ms->ms_softCAR & (1 << port))/* XXX HARDWIRE FOR NOW */ |
d55465de SL |
769 | setm(&asp->ap_modem, A_DTR, ASSERT); |
770 | else | |
771 | setm(&asp->ap_modem, A_DTR, AUTO); | |
772 | seti(&asp->ap_intena, A_DCD); | |
773 | } else { | |
774 | setm(&asp->ap_modem, 0, DROP); | |
775 | seti(&asp->ap_intena, 0); | |
776 | } | |
d55465de SL |
777 | } |
778 | ||
779 | /* | |
780 | * Set up the modem control structure according to mask. | |
781 | * Each set bit in the mask means assert the corresponding | |
782 | * modem control line, otherwise, it will be dropped. | |
783 | * RTS is special since it can either be asserted, dropped | |
784 | * or put in auto mode for auto modem control. | |
785 | */ | |
786 | static | |
787 | setm(mc, mask, rts) | |
788 | register struct mdmctl *mc; | |
789 | register int mask; | |
790 | { | |
791 | ||
792 | mc->mc_rngdsr = (mask & A_RNGDSR) ? ASSERT : DROP; | |
793 | mc->mc_rate = (mask & A_RATE) ? ASSERT : DROP; | |
794 | mc->mc_dcd = (mask & A_DCD) ? ASSERT : DROP; | |
795 | mc->mc_sectx = (mask & A_SECTX) ? ASSERT : DROP; | |
796 | mc->mc_cts = (mask & A_CTS) ? ASSERT : DROP; | |
797 | mc->mc_secrx = (mask & A_SECRX) ? ASSERT : DROP; | |
798 | mc->mc_dtr = (mask & A_DTR) ? ASSERT : DROP; | |
799 | mc->mc_rts = rts; | |
800 | } | |
801 | ||
802 | /* | |
803 | * Set up the status change enable field from mask. | |
804 | * When a signal is enabled in this structure and | |
805 | * and a change in state on a corresponding modem | |
806 | * control line occurs, a status change event will | |
807 | * be delivered to the host. | |
808 | */ | |
809 | static | |
810 | seti(mc, mask) | |
811 | register struct mdmctl *mc; | |
812 | register int mask; | |
813 | { | |
814 | ||
815 | mc->mc_rngdsr = (mask & A_RNGDSR) ? MDM_ON : MDM_OFF; | |
816 | mc->mc_rate = (mask & A_RATE) ? MDM_ON : MDM_OFF; | |
817 | mc->mc_dcd = (mask & A_DCD) ? MDM_ON : MDM_OFF; | |
818 | mc->mc_sectx = (mask & A_SECTX) ? MDM_ON : MDM_OFF; | |
819 | mc->mc_cts = (mask & A_CTS) ? MDM_ON : MDM_OFF; | |
820 | mc->mc_secrx = (mask & A_SECRX) ? MDM_ON : MDM_OFF; | |
821 | mc->mc_dtr = (mask & A_DTR) ? MDM_ON : MDM_OFF; | |
822 | mc->mc_rts = (mask & A_RTS) ? MDM_ON : MDM_OFF; | |
823 | } | |
824 | ||
825 | mpcleanport(mb, port) | |
826 | struct mblok *mb; | |
827 | int port; | |
828 | { | |
829 | register struct mpport *mp; | |
830 | register struct tty *tp; | |
831 | ||
832 | mp = &mb->mb_port[port]; | |
833 | if (mp->mp_proto == MPPROTO_ASYNC) { | |
834 | mp->mp_flags = MP_REMBSY; | |
5db86c85 | 835 | /* signal loss of carrier and close */ |
d55465de | 836 | tp = &mp_tty[mb->mb_unit*MPCHUNK+port]; |
d55465de | 837 | ttyflush(tp, FREAD|FWRITE); |
5db86c85 | 838 | (void) (*linesw[tp->t_line].l_modem)(tp, 0); |
d55465de SL |
839 | } |
840 | } | |
841 | ||
842 | mpclean(mb, port) | |
843 | register struct mblok *mb; | |
844 | int port; | |
845 | { | |
846 | register struct mpport *mp; | |
847 | register struct mpevent *ev; | |
848 | register int i; | |
5db86c85 | 849 | u_char list[2]; |
d55465de SL |
850 | int unit; |
851 | ||
852 | mp = &mb->mb_port[port]; | |
853 | unit = mb->mb_unit; | |
854 | for (i = mp->mp_off; i != mp->mp_on; i = (i+1 % MPINSET)) { | |
855 | ev = &mp->mp_recvq[i]; | |
856 | ev->ev_error = ENXIO; | |
857 | ev->ev_status = EVSTATUS_DONE; | |
858 | } | |
859 | list[0] = port, list[1] = MPPORT_EOL; | |
860 | mpxintr(unit, list); | |
861 | mprintr(unit, list); | |
862 | /* Clear async for port */ | |
863 | mp->mp_proto = MPPROTO_UNUSED; | |
864 | mp->mp_flags = 0; | |
865 | mp->mp_on = 0; | |
866 | mp->mp_off = 0; | |
867 | mp->mp_nextrcv = 0; | |
868 | ||
869 | mp_tty[unit*MPCHUNK + port].t_state = 0; | |
870 | for (ev = &mp->mp_sendq[0]; ev < &mp->mp_sendq[MPOUTSET]; ev++) { | |
871 | ev->ev_status = EVSTATUS_FREE; | |
872 | ev->ev_cmd = 0; | |
873 | ev->ev_error = 0; | |
874 | ev->ev_un.rcvblk = 0; | |
875 | ev->ev_params = 0; | |
876 | } | |
877 | for (ev = &mp->mp_recvq[0]; ev < &mp->mp_recvq[MPINSET]; ev++) { | |
878 | ev->ev_status = EVSTATUS_FREE; | |
879 | ev->ev_cmd = 0; | |
880 | ev->ev_error = 0; | |
881 | ev->ev_params = 0; | |
882 | } | |
883 | } | |
884 | ||
885 | /* | |
886 | * MPCC interrupt handler. | |
887 | */ | |
888 | mpintr(mpcc) | |
889 | int mpcc; | |
890 | { | |
891 | register struct mblok *mb; | |
892 | register struct his *his; | |
d55465de SL |
893 | |
894 | mb = mp_softc[mpcc].ms_mb; | |
895 | if (mb == 0) { | |
896 | printf("mp%d: stray interrupt\n", mpcc); | |
897 | return; | |
898 | } | |
899 | his = &mb->mb_hostint; | |
900 | his->semaphore &= ~MPSEMA_AVAILABLE; | |
901 | /* | |
902 | * Check for events to be processed. | |
903 | */ | |
904 | if (his->proto[MPPROTO_ASYNC].outbdone[0] != MPPORT_EOL) | |
905 | mprintr(mpcc, his->proto[MPPROTO_ASYNC].outbdone); | |
906 | if (his->proto[MPPROTO_ASYNC].inbdone[0] != MPPORT_EOL) | |
907 | mpxintr(mpcc, his->proto[MPPROTO_ASYNC].inbdone); | |
908 | if (mb->mb_harderr || mb->mb_softerr) | |
909 | mperror(mb, mpcc); | |
910 | his->semaphore |= MPSEMA_AVAILABLE; | |
911 | } | |
912 | ||
913 | /* | |
914 | * Handler for processing completion of transmitted events. | |
915 | */ | |
916 | mpxintr(unit, list) | |
5db86c85 | 917 | register u_char *list; |
d55465de SL |
918 | { |
919 | register struct mpport *mp; | |
920 | register struct mpevent *ev; | |
921 | register struct mblok *mb; | |
922 | register struct tty *tp; | |
923 | register struct asyncparam *ap; | |
924 | struct mpsoftc *ms; | |
925 | int port, i, j; | |
255871c5 | 926 | # define nextevent(mp) &mp->mp_recvq[mp->mp_off] |
d55465de SL |
927 | |
928 | ms = &mp_softc[unit]; | |
929 | mb = mp_softc[unit].ms_mb; | |
930 | for (j = 0; j < MPMAXPORT && ((port = *list++) != MPPORT_EOL); j++) { | |
931 | /* | |
932 | * Process each completed entry in the inbound queue. | |
933 | */ | |
934 | mp = &mb->mb_port[port]; | |
935 | tp = &mp_tty[unit*MPCHUNK + port]; | |
d55465de | 936 | ev = nextevent(mp); |
255871c5 | 937 | for (; ev->ev_status & EVSTATUS_DONE; ev = nextevent(mp)) { |
d55465de SL |
938 | /* YUCK */ |
939 | ap = &ms->ms_async[port][mp->mp_off]; | |
5db86c85 | 940 | mppurge((caddr_t)ap, (int)sizeof (*ap)); |
d55465de SL |
941 | switch (ev->ev_cmd) { |
942 | case EVCMD_OPEN: | |
943 | /* | |
944 | * Open completion, start all reads and | |
945 | * assert modem status information. | |
946 | */ | |
947 | for (i = 0; i < MPOUTSET; i++) | |
948 | mp->mp_sendq[i].ev_status = EVSTATUS_GO; | |
949 | (*linesw[tp->t_line].l_modem) | |
950 | (tp, ap->ap_modem.mc_dcd == ASSERT); | |
255871c5 KB |
951 | mp_freein(ev); |
952 | adjptr(mp->mp_off, MPINSET); | |
953 | mp->mp_proto = MPPROTO_ASYNC; /* XXX */ | |
954 | wakeup((caddr_t)&tp->t_canq); | |
d55465de SL |
955 | break; |
956 | case EVCMD_CLOSE: | |
957 | /* | |
958 | * Close completion, flush all pending | |
959 | * transmissions, free resources, and | |
960 | * cleanup mpcc port state. | |
961 | */ | |
962 | for (i = 0; i < MPOUTSET; i++) { | |
963 | mp->mp_sendq[i].ev_status = | |
964 | EVSTATUS_FREE; | |
965 | mp->mp_sendq[i].ev_un.rcvblk = 0; | |
966 | mp->mp_sendq[i].ev_params = 0; | |
967 | } | |
255871c5 KB |
968 | mp_freein(ev); |
969 | adjptr(mp->mp_off, MPINSET); | |
970 | tp->t_state &= ~(TS_CARR_ON|TS_BUSY|TS_FLUSH); | |
d55465de SL |
971 | mp->mp_on = mp->mp_off = mp->mp_nextrcv = 0; |
972 | mp->mp_flags &= ~MP_PROGRESS; | |
973 | mp->mp_proto = MPPROTO_UNUSED; | |
30a58bac | 974 | wakeup((caddr_t)&tp->t_canq); |
255871c5 | 975 | break; |
d55465de | 976 | case EVCMD_IOCTL: |
255871c5 KB |
977 | mp_freein(ev); |
978 | adjptr(mp->mp_off, MPINSET); | |
979 | mp->mp_flags &= ~MP_IOCTL; | |
980 | wakeup((caddr_t)&tp->t_canq); | |
d55465de SL |
981 | break; |
982 | case EVCMD_WRITE: | |
983 | /* | |
984 | * Transmission completed, update tty | |
985 | * state and restart output. | |
986 | */ | |
255871c5 KB |
987 | if (ev->ev_opts != A_FLUSH) { |
988 | tp->t_state &= ~TS_BUSY; | |
989 | if (tp->t_state & TS_FLUSH) | |
990 | tp->t_state &= ~TS_FLUSH; | |
991 | else { | |
992 | register int cc = 0, n; | |
993 | struct hxmtl *hxp; | |
d55465de | 994 | |
255871c5 KB |
995 | hxp = &ms->ms_hxl[port]; |
996 | for (n=0;n < ev->ev_count; n++) | |
997 | cc += hxp->size[n]; | |
998 | ndflush(&tp->t_outq, cc); | |
999 | } | |
d55465de SL |
1000 | } |
1001 | switch (ev->ev_error) { | |
1002 | case A_SIZERR: /*# error in xmt data size */ | |
1003 | mplog(unit, port, A_XSIZE, 0); | |
1004 | break; | |
1005 | case A_NXBERR: /*# no more xmt evt buffers */ | |
1006 | mplog(unit, port, A_NOXBUF, 0); | |
1007 | break; | |
1008 | } | |
255871c5 KB |
1009 | mp_freein(ev); |
1010 | adjptr(mp->mp_off, MPINSET); | |
d55465de SL |
1011 | mpstart(tp); |
1012 | break; | |
1013 | default: | |
5db86c85 | 1014 | mplog(unit, port, A_INVCMD, (int)ev->ev_cmd); |
255871c5 KB |
1015 | mp_freein(ev); |
1016 | adjptr(mp->mp_off, MPINSET); | |
d55465de SL |
1017 | break; |
1018 | } | |
d55465de | 1019 | } |
d55465de | 1020 | } |
255871c5 KB |
1021 | #undef nextevent |
1022 | } | |
1023 | ||
1024 | mp_freein(ev) | |
1025 | register struct mpevent *ev; | |
1026 | { | |
1027 | /* re-init all values in this entry */ | |
1028 | ev->ev_cmd = 0; | |
1029 | ev->ev_opts = 0; | |
1030 | ev->ev_error = 0; | |
1031 | ev->ev_flags = 0; | |
1032 | ev->ev_count = 0; | |
1033 | /* show this entry is available for use */ | |
1034 | ev->ev_status = EVSTATUS_FREE; | |
d55465de SL |
1035 | } |
1036 | ||
1037 | /* | |
1038 | * Handler for processing received events. | |
1039 | */ | |
1040 | mprintr(unit, list) | |
5db86c85 | 1041 | u_char *list; |
d55465de SL |
1042 | { |
1043 | register struct tty *tp; | |
1044 | register struct mpport *mp; | |
1045 | register struct mpevent *ev; | |
1046 | struct mblok *mb; | |
1047 | register int cc; | |
1048 | register char *cp; | |
1049 | struct mpsoftc *ms; | |
1050 | caddr_t ptr; | |
1051 | char *rcverr; | |
1052 | int port, i; | |
1053 | ||
1054 | ms = &mp_softc[unit]; | |
1055 | mb = mp_softc[unit].ms_mb; | |
1056 | for (i = 0; i < MPMAXPORT && (port = *list++) != MPPORT_EOL; i++) { | |
1057 | tp = &mp_tty[unit*MPCHUNK + port]; | |
1058 | mp = &mb->mb_port[port]; | |
1059 | ev = &mp->mp_sendq[mp->mp_nextrcv]; | |
1060 | while (ev->ev_status & EVSTATUS_DONE) { | |
255871c5 KB |
1061 | switch(ev->ev_cmd) { |
1062 | case EVCMD_STATUS: | |
d55465de SL |
1063 | /* |
1064 | * Status change, look for carrier changes. | |
1065 | */ | |
255871c5 KB |
1066 | switch(ev->ev_opts) { |
1067 | case DCDASRT: | |
1068 | (*linesw[tp->t_line].l_modem)(tp, 1); | |
1069 | wakeup((caddr_t)&tp->t_canq); | |
1070 | break; | |
1071 | case DCDDROP: | |
1072 | (*linesw[tp->t_line].l_modem)(tp, 0); | |
1073 | wakeup((caddr_t)&tp->t_canq); | |
1074 | break; | |
1075 | case NORBUF: | |
1076 | case NOEBUF: | |
1077 | mplog(unit, port, | |
1078 | "out of receive events", 0); | |
1079 | break; | |
1080 | default: | |
d55465de SL |
1081 | mplog(unit, port, |
1082 | "unexpect status command", | |
5db86c85 | 1083 | (int)ev->ev_opts); |
255871c5 KB |
1084 | break; |
1085 | } | |
d55465de | 1086 | break; |
255871c5 KB |
1087 | case EVCMD_READ: |
1088 | /* | |
1089 | * Process received data. | |
1090 | */ | |
1091 | if ((tp->t_state & TS_ISOPEN) == 0) { | |
1092 | wakeup((caddr_t)&tp->t_rawq); | |
1093 | break; | |
1094 | } | |
1095 | if ((cc = ev->ev_count) == 0) | |
1096 | break; | |
1097 | cp = ms->ms_cbuf[port][mp->mp_nextrcv]; | |
1098 | mppurge(cp, CBSIZE); | |
1099 | while (cc-- > 0) { | |
1100 | /* | |
1101 | * A null character is inserted, | |
1102 | * potentially when a break or framing | |
1103 | * error occurs. If we're not in raw | |
1104 | * mode, substitute the interrupt | |
1105 | * character. | |
1106 | */ | |
240fb450 | 1107 | /*** XXX - FIXUP ***/ |
255871c5 KB |
1108 | if (*cp == 0 && |
1109 | (ev->ev_error == BRKASRT || | |
1110 | ev->ev_error == FRAMERR)) | |
1111 | if ((tp->t_flags&RAW) == 0) | |
240fb450 MT |
1112 | ; |
1113 | /* XXX was break */ | |
255871c5 KB |
1114 | (*linesw[tp->t_line].l_rint)(*cp++, tp); |
1115 | } | |
1116 | /* setup for next read */ | |
1117 | ptr = (caddr_t)&mp_softc[unit].ms_cbuf[port][mp->mp_nextrcv][0]; | |
1118 | ev->ev_un.rcvblk = (u_char *)kvtophys(ptr); | |
1119 | ev->ev_params = (caddr_t) kvtophys(ptr); | |
1120 | switch(ev->ev_error) { | |
1121 | case RCVDTA: | |
1122 | /* Normal (good) rcv data do not | |
1123 | * report the following they are | |
1124 | * "normal" errors | |
1125 | */ | |
1126 | case FRAMERR: | |
1127 | /* frame error */ | |
1128 | case BRKASRT: | |
1129 | /* Break condition */ | |
1130 | case PARERR: | |
1131 | /* parity error */ | |
1132 | rcverr = (char *)0; | |
1133 | break; | |
1134 | case OVRNERR: | |
1135 | /* Overrun error */ | |
1136 | rcverr = "overrun error"; | |
1137 | break; | |
1138 | case OVFERR: | |
1139 | /* Overflow error */ | |
1140 | rcverr = "overflow error"; | |
1141 | break; | |
1142 | default: | |
1143 | rcverr = "undefined rcv error"; | |
1144 | break; | |
1145 | } | |
1146 | if (rcverr != (char *)0) | |
1147 | mplog(unit, port, rcverr, | |
1148 | (int)ev->ev_error); | |
d55465de SL |
1149 | break; |
1150 | default: | |
255871c5 KB |
1151 | mplog(unit, port, "unexpected command", |
1152 | (int)ev->ev_cmd); | |
1153 | break; | |
d55465de | 1154 | } |
d55465de SL |
1155 | ev->ev_cmd = 0; |
1156 | ev->ev_opts = 0; | |
1157 | ev->ev_error = 0; | |
1158 | ev->ev_flags = 0; | |
255871c5 | 1159 | ev->ev_count = 0; |
d55465de SL |
1160 | ev->ev_status = EVSTATUS_GO; /* start next read */ |
1161 | adjptr(mp->mp_nextrcv, MPOUTSET); | |
1162 | ev = &mp->mp_sendq[mp->mp_nextrcv]; | |
1163 | } | |
1164 | } | |
1165 | } | |
1166 | ||
1167 | /* | |
1168 | * Log an mpcc diagnostic. | |
1169 | */ | |
1170 | mplog(unit, port, cp, flags) | |
1171 | char *cp; | |
1172 | { | |
1173 | ||
1174 | if (flags) | |
1175 | log(LOG_ERR, "mp%d: port%d, %s (%d)\n", | |
1176 | unit, port, cp, flags); | |
1177 | else | |
1178 | log(LOG_ERR, "mp%d: port%d, %s\n", unit, port, cp); | |
1179 | } | |
1180 | ||
1181 | int MPHOSTINT = 1; | |
1182 | ||
1183 | mptimeint(mb) | |
1184 | register struct mblok *mb; | |
1185 | { | |
1186 | ||
1187 | mb->mb_mpintcnt = 0; | |
1188 | mb->mb_mpintclk = (caddr_t)0; | |
1189 | *(u_short *)mpinfo[mb->mb_unit]->ui_addr = 2; | |
1190 | } | |
1191 | ||
1192 | /* | |
1193 | * Interupt mpcc | |
1194 | */ | |
1195 | mpintmpcc(mb, port) | |
1196 | register struct mblok *mb; | |
d55465de SL |
1197 | { |
1198 | ||
1199 | mb->mb_intr[port] |= MPSEMA_WORK; | |
1200 | if (++mb->mb_mpintcnt == MPHOSTINT) { | |
1201 | mb->mb_mpintcnt = 0; | |
1202 | *(u_short *)mpinfo[mb->mb_unit]->ui_addr = 2; | |
1203 | if (mb->mb_mpintclk) { | |
5db86c85 | 1204 | untimeout(mptimeint, (caddr_t)mb); |
d55465de SL |
1205 | mb->mb_mpintclk = 0; |
1206 | } | |
1207 | } else { | |
1208 | if (mb->mb_mpintclk == 0) { | |
5db86c85 | 1209 | timeout(mptimeint, (caddr_t)mb, 4); |
d55465de SL |
1210 | mb->mb_mpintclk = (caddr_t)1; |
1211 | } | |
1212 | } | |
1213 | } | |
1214 | ||
1215 | static char *mpherrmsg[] = { | |
1216 | "", | |
1217 | "Bus error", /* MPBUSERR */ | |
1218 | "Address error", /* ADDRERR */ | |
1219 | "Undefined ecc interrupt", /* UNDECC */ | |
1220 | "Undefined interrupt", /* UNDINT */ | |
1221 | "Power failure occurred", /* PWRFL */ | |
1222 | "Stray transmit done interrupt", /* NOXENTRY */ | |
1223 | "Two fast timers on one port", /* TWOFTMRS */ | |
1224 | "Interrupt queue full", /* INTQFULL */ | |
1225 | "Interrupt queue ack error", /* INTQERR */ | |
1226 | "Uncorrectable dma parity error", /* CBPERR */ | |
1227 | "32 port ACAP failed power up", /* ACPDEAD */ | |
1228 | }; | |
1229 | #define NHERRS (sizeof (mpherrmsg) / sizeof (mpherrmsg[0])) | |
1230 | ||
1231 | mperror(mb, unit) | |
1232 | register struct mblok *mb; | |
1233 | int unit; | |
1234 | { | |
1235 | register char *cp; | |
1236 | register int i; | |
1237 | ||
1238 | if (mb->mb_softerr) { | |
1239 | switch (mb->mb_softerr) { | |
1240 | case DMAPERR: /* dma parity error */ | |
1241 | cp = "dma parity error"; | |
1242 | break; | |
1243 | case ECCERR: | |
1244 | cp = "local memory ecc error"; | |
1245 | break; | |
1246 | default: | |
1247 | cp = "unknown error"; | |
1248 | break; | |
1249 | } | |
1250 | log(LOG_ERR, "mp%d: soft error, %s", unit, cp); | |
1251 | mb->mb_softerr = 0; | |
1252 | } | |
1253 | if (mb->mb_harderr) { | |
1254 | if (mb->mb_harderr < NHERRS) | |
1255 | cp = mpherrmsg[mb->mb_harderr]; | |
1256 | else | |
1257 | cp = "unknown error"; | |
1258 | log(LOG_ERR, "mp%d: hard error, %s", unit, cp); | |
1259 | if (mb->mb_status == MP_OPOPEN) { | |
1260 | for (i = 0; i < MPMAXPORT; i++) { | |
1261 | mpcleanport(mb, i); | |
1262 | mb->mb_proto[i] = MPPROTO_UNUSED; | |
1263 | } | |
1264 | } | |
1265 | mb->mb_harderr = 0; | |
1266 | mb->mb_status = 0; | |
1267 | } | |
1268 | } | |
1269 | ||
1270 | mppurge(addr, cc) | |
1271 | register caddr_t addr; | |
1272 | register int cc; | |
1273 | { | |
1274 | ||
1275 | for (; cc >= 0; addr += NBPG, cc -= NBPG) | |
1276 | mtpr(P1DC, addr); | |
1277 | } | |
1278 | ||
1279 | /* | |
1280 | * MPCC Download Pseudo-device. | |
1281 | */ | |
1282 | char mpdlbuf[MPDLBUFSIZE]; | |
1283 | int mpdlbusy; /* interlock on download buffer */ | |
1284 | int mpdlerr; | |
1285 | ||
1286 | mpdlopen(dev) | |
1287 | dev_t dev; | |
1288 | { | |
1289 | int unit, mpu; | |
1290 | struct vba_device *vi; | |
1291 | ||
1292 | unit = minor(dev); | |
1293 | mpu = MPUNIT(unit); | |
1294 | if (mpu >= NMP || (vi = mpinfo[mpu]) == 0 || vi->ui_alive == 0) | |
1295 | return (ENODEV); | |
1296 | return (0); | |
1297 | } | |
1298 | ||
1299 | mpdlwrite(dev, uio) | |
1300 | dev_t dev; | |
1301 | struct uio *uio; | |
1302 | { | |
1303 | register struct mpsoftc *ms = &mp_softc[MPUNIT(minor(dev))]; | |
1304 | register struct mpdl *dl; | |
1305 | int error; | |
1306 | ||
1307 | if (ms->ms_mb == 0 || ms->ms_mb->mb_status != MP_DLOPEN) | |
1308 | return (EFAULT); | |
1309 | dl = &ms->ms_mb->mb_dl; | |
1310 | dl->mpdl_count = uio->uio_iov->iov_len; | |
5db86c85 | 1311 | dl->mpdl_data = (caddr_t) kvtophys(mpdlbuf); |
d09985e2 | 1312 | if (error = uiomove(mpdlbuf, (int)dl->mpdl_count, uio)) |
d55465de SL |
1313 | return (error); |
1314 | uio->uio_resid -= dl->mpdl_count; /* set up return from write */ | |
1315 | dl->mpdl_cmd = MPDLCMD_NORMAL; | |
1316 | error = mpdlwait(dl); | |
1317 | return (error); | |
1318 | } | |
1319 | ||
1320 | mpdlclose(dev) | |
1321 | dev_t dev; | |
1322 | { | |
1323 | register struct mblok *mb = mp_softc[MPUNIT(minor(dev))].ms_mb; | |
d55465de SL |
1324 | |
1325 | if (mb == 0 || mb->mb_status != MP_DLDONE) { | |
1326 | mpbogus.status = 0; | |
1327 | if (mpbogus.mb == mpbogus.mbloks[MPUNIT(minor(dev))]) | |
1328 | mpdlbusy--; | |
1329 | return (EEXIST); | |
1330 | } | |
1331 | mb->mb_status = MP_OPOPEN; | |
1332 | mpbogus.status = 0; | |
1333 | /* set to dead, for board handshake */ | |
1334 | mb->mb_hostint.imok = MPIMOK_DEAD; | |
1335 | return (0); | |
1336 | } | |
1337 | ||
1338 | int mpdltimeout(); | |
1339 | ||
5db86c85 | 1340 | /* ARGSUSED */ |
d55465de SL |
1341 | mpdlioctl(dev, cmd, data, flag) |
1342 | dev_t dev; | |
1343 | caddr_t data; | |
1344 | { | |
1345 | register struct mblok *mb; | |
1346 | register struct mpdl *dl; | |
5db86c85 | 1347 | int unit, error, s, i; |
d55465de SL |
1348 | |
1349 | mb = mp_softc[unit=MPUNIT(minor(dev))].ms_mb; | |
1350 | if (mb == 0) | |
1351 | return (EEXIST); | |
1352 | dl = &mb->mb_dl; | |
1353 | error = 0; | |
1354 | switch (cmd) { | |
1355 | case MPIOPORTMAP: | |
1356 | bcopy(data, (caddr_t)mb->mb_proto, sizeof (mb->mb_proto)); | |
1357 | break; | |
1358 | case MPIOHILO: | |
1359 | bcopy(data, (caddr_t)&mb->mb_hiport, 2*(sizeof(mb->mb_hiport))); | |
1360 | break; | |
1361 | case MPIOENDDL: | |
1362 | dl->mpdl_count = 0; | |
1363 | dl->mpdl_data = 0; | |
1364 | dl->mpdl_cmd = MPIOENDDL&IOCPARM_MASK; | |
1365 | error = mpdlwait(dl); | |
1366 | mpccinit(unit); | |
1367 | mb->mb_status = MP_DLDONE; | |
1368 | mpdlbusy--; | |
1369 | break; | |
1370 | case MPIOENDCODE: | |
1371 | dl->mpdl_count = 0; | |
1372 | dl->mpdl_data = 0; | |
1373 | dl->mpdl_cmd = MPIOENDCODE&IOCPARM_MASK; | |
1374 | error = mpdlwait(dl); | |
1375 | break; | |
1376 | case MPIOASYNCNF: | |
1377 | bcopy(data, mpdlbuf, sizeof (struct abdcf)); | |
5db86c85 | 1378 | dl->mpdl_data = (caddr_t) kvtophys(mpdlbuf); |
d55465de SL |
1379 | dl->mpdl_count = sizeof (struct abdcf); |
1380 | dl->mpdl_cmd = MPIOASYNCNF&IOCPARM_MASK; | |
1381 | error = mpdlwait(dl); | |
1382 | break; | |
1383 | case MPIOSTARTDL: | |
1384 | while (mpdlbusy) | |
1385 | sleep((caddr_t)&mpdlbusy, PZERO+1); | |
1386 | mpdlbusy++; | |
1387 | /* initialize the downloading interface */ | |
1388 | mpbogus.magic = MPMAGIC; | |
1389 | mpbogus.mb = mpbogus.mbloks[unit]; | |
1390 | mpbogus.status = 1; | |
1391 | dl->mpdl_status = EVSTATUS_FREE; | |
1392 | dl->mpdl_count = 0; | |
1393 | dl->mpdl_cmd = 0; | |
1394 | dl->mpdl_data = (char *) 0; | |
1395 | mpdlerr = 0; | |
1396 | mb->mb_magic = MPMAGIC; | |
1397 | mb->mb_ivec = mp_softc[unit].ms_ivec+1; /* download vector */ | |
1398 | mb->mb_status = MP_DLPEND; | |
1399 | mb->mb_diagswitch[0] = 'A'; | |
1400 | mb->mb_diagswitch[1] = 'P'; | |
1401 | s = spl8(); | |
1402 | *(u_short *)mpinfo[unit]->ui_addr = 2; | |
5db86c85 | 1403 | timeout(mpdltimeout, (caddr_t)mb, 30*hz); |
d55465de SL |
1404 | sleep((caddr_t)&mb->mb_status, PZERO+1); |
1405 | splx(s); | |
1406 | if (mb->mb_status == MP_DLOPEN) { | |
5db86c85 | 1407 | untimeout(mpdltimeout, (caddr_t)mb); |
d55465de SL |
1408 | } else if (mb->mb_status == MP_DLTIME) { |
1409 | mpbogus.status = 0; | |
1410 | error = ETIMEDOUT; | |
1411 | } else { | |
1412 | mpbogus.status = 0; | |
1413 | error = ENXIO; | |
1414 | log(LOG_ERR, "mp%d: start download: unknown status %x", | |
1415 | unit, mb->mb_status); | |
1416 | } | |
5db86c85 | 1417 | bzero((caddr_t)mb->mb_port, sizeof (mb->mb_port)); |
d55465de SL |
1418 | break; |
1419 | case MPIORESETBOARD: | |
1420 | s = spl8(); | |
1421 | if (mb->mb_imokclk) | |
1422 | mb->mb_imokclk = 0; | |
1423 | *(u_short *)mpinfo[unit]->ui_addr = 0x100; | |
1424 | if (mb->mb_status == MP_DLOPEN || mb->mb_status == MP_DLDONE) { | |
1425 | mpdlerr = MP_DLERROR; | |
1426 | dl->mpdl_status = EVSTATUS_FREE; | |
1427 | wakeup((caddr_t)&dl->mpdl_status); | |
1428 | mpbogus.status = 0; | |
1429 | } | |
1430 | for (i = 0; i < MPMAXPORT; i++) { | |
1431 | if (mb->mb_harderr || mb->mb_softerr) | |
1432 | mperror(mb, i); | |
1433 | mpcleanport(mb, i); | |
1434 | mb->mb_proto[i] = MPPROTO_UNUSED; | |
1435 | } | |
1436 | mb->mb_status = 0; | |
1437 | splx(s); | |
1438 | break; | |
1439 | default: | |
1440 | error = EINVAL; | |
1441 | break; | |
1442 | } | |
1443 | return (error); | |
1444 | } | |
1445 | ||
1446 | mpccinit(unit) | |
1447 | int unit; | |
1448 | { | |
1449 | register struct mblok *mb = mp_softc[unit].ms_mb; | |
1450 | register struct his *his; | |
1451 | register int i, j; | |
1452 | ||
1453 | mb->mb_status = MP_DLDONE; | |
1454 | mb->mb_ivec = mp_softc[unit].ms_ivec; | |
1455 | mb->mb_magic = MPMAGIC; | |
1456 | /* Init host interface structure */ | |
1457 | his = &mb->mb_hostint; | |
1458 | his->semaphore = MPSEMA_AVAILABLE; | |
1459 | for (i = 0; i < NMPPROTO; i++) | |
1460 | for (j = 0; j < MPMAXPORT; j++) { | |
1461 | his->proto[i].inbdone[j] = MPPORT_EOL; | |
1462 | his->proto[i].outbdone[j] = MPPORT_EOL; | |
1463 | } | |
1464 | mb->mb_unit = unit; | |
1465 | } | |
1466 | ||
1467 | mpdlintr(mpcc) | |
1468 | int mpcc; | |
1469 | { | |
1470 | register struct mblok *mb; | |
1471 | register struct mpdl *dl; | |
1472 | ||
1473 | mb = mp_softc[mpcc].ms_mb; | |
1474 | if (mb == 0) { | |
1475 | printf("mp%d: stray download interrupt\n", mpcc); | |
1476 | return; | |
1477 | } | |
1478 | dl = &mb->mb_dl; | |
1479 | switch (mb->mb_status) { | |
1480 | case MP_DLOPEN: | |
1481 | if (dl->mpdl_status != EVSTATUS_DONE) | |
1482 | mpdlerr = MP_DLERROR; | |
1483 | dl->mpdl_status = EVSTATUS_FREE; | |
1484 | wakeup((caddr_t)&dl->mpdl_status); | |
1485 | return; | |
1486 | case MP_DLPEND: | |
1487 | mb->mb_status = MP_DLOPEN; | |
5db86c85 | 1488 | wakeup((caddr_t)&mb->mb_status); |
d55465de SL |
1489 | /* fall thru... */ |
1490 | case MP_DLTIME: | |
1491 | return; | |
1492 | case MP_OPOPEN: | |
1493 | if (mb->mb_imokclk) | |
1494 | mb->mb_imokclk = 0; | |
1495 | mb->mb_nointcnt = 0; /* reset no interrupt count */ | |
1496 | mb->mb_hostint.imok = MPIMOK_DEAD; | |
1497 | mb->mb_imokclk = (caddr_t)1; | |
1498 | break; | |
1499 | default: | |
1500 | log(LOG_ERR, "mp%d: mpdlintr, status %x\n", | |
1501 | mpcc, mb->mb_status); | |
1502 | break; | |
1503 | } | |
1504 | } | |
1505 | ||
1506 | mpdltimeout(mp) | |
1507 | struct mblok *mp; | |
1508 | { | |
1509 | ||
1510 | mp->mb_status = MP_DLTIME; | |
1511 | wakeup((caddr_t)&mp->mb_status); | |
1512 | } | |
1513 | ||
1514 | /* | |
1515 | * Wait for a transfer to complete or a timeout to occur. | |
1516 | */ | |
1517 | mpdlwait(dl) | |
1518 | register struct mpdl *dl; | |
1519 | { | |
1520 | int s, error = 0; | |
1521 | ||
1522 | s = spl8(); | |
1523 | dl->mpdl_status = EVSTATUS_GO; | |
1524 | while (dl->mpdl_status != EVSTATUS_FREE) { | |
1525 | sleep((caddr_t)&dl->mpdl_status, PZERO+1); | |
1526 | if (mpdlerr == MP_DLERROR) | |
1527 | error = EIO; | |
1528 | } | |
1529 | splx(s); | |
1530 | return (error); | |
1531 | } | |
1532 | #endif |