projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 430f81c3 | 1 | /* mp.c 7.1 88/05/21 */ |
| d55465de SL |
2 | |
| 3 | #include "mp.h" | |
| 4 | #if NMP > 0 | |
| 5 | /* | |
| 6 | * Multi Protocol Communications Controller (MPCC). | |
| 7 | * Asynchronous Terminal Protocol Support. | |
| 8 | */ | |
| 9 | #include "../machine/pte.h" | |
| 10 | #include "../machine/mtpr.h" | |
| 11 | ||
| 12 | #include "param.h" | |
| 13 | #include "ioctl.h" | |
| 14 | #include "tty.h" | |
| 15 | #include "dir.h" | |
| 16 | #include "user.h" | |
| 17 | #include "map.h" | |
| 18 | #include "buf.h" | |
| 19 | #include "conf.h" | |
| 20 | #include "file.h" | |
| 21 | #include "uio.h" | |
| 22 | #include "errno.h" | |
| 23 | #include "syslog.h" | |
| 24 | #include "vmmac.h" | |
| 25 | #include "kernel.h" | |
| 26 | #include "clist.h" | |
| 27 | ||
| 28 | #include "../tahoevba/vbavar.h" | |
| 29 | #include "../tahoevba/mpreg.h" | |
| 30 | ||
| 31 | #define MPCHUNK 16 | |
| 32 | #define MPPORT(n) ((n) & 0xf) | |
| 33 | #define MPUNIT(n) ((n) >> 4) | |
| 34 | ||
| 35 | /* | |
| 36 | * Driver information for auto-configuration stuff. | |
| 37 | */ | |
| 38 | int mpprobe(), mpattach(), mpintr(); | |
| 39 | struct vba_device *mpinfo[NMP]; | |
| 40 | long mpstd[] = { 0 }; | |
| 41 | struct vba_driver mpdriver = | |
| 42 | { mpprobe, 0, mpattach, 0, mpstd, "mp", mpinfo }; | |
| 43 | ||
| 44 | int mpstart(); | |
| 45 | struct mpevent *mpparam(); | |
| 46 | struct mpevent *mp_getevent(); | |
| 47 | ||
| 48 | /* | |
| 49 | * The following structure is needed to deal with mpcc's convoluted | |
| 50 | * method for locating it's mblok structures (hold your stomach). | |
| 51 | * When an mpcc is reset at boot time it searches host memory | |
| 52 | * looking for a string that says ``ThIs Is MpCc''. The mpcc | |
| 53 | * then reads the structure to locate the pointer to it's mblok | |
| 54 | * structure (you can wretch now). | |
| 55 | */ | |
| 56 | struct mpbogus { | |
| 57 | char s[12]; /* `ThIs Is MpCc'' */ | |
| 58 | u_char status; | |
| 59 | u_char unused; | |
| 60 | u_short magic; | |
| 61 | struct mblok *mb; | |
| 62 | struct mblok *mbloks[NMP]; /* can support at most 16 mpcc's */ | |
| 63 | } mpbogus = { 'T','h','I','s',' ','I','s',' ','M','p','C','c' }; | |
| 64 | ||
| 65 | /* | |
| 66 | * Software state per unit. | |
| 67 | */ | |
| 68 | struct mpsoftc { | |
| 69 | u_int ms_ivec; /* interrupt vector */ | |
| 70 | u_int ms_softCAR; /* software carrier for async */ | |
| 71 | struct mblok *ms_mb; /* mpcc status area */ | |
| 72 | struct vb_buf ms_buf; /* vba resources for ms_mb */ | |
| 73 | struct hxmtl ms_hxl[MPMAXPORT];/* host transmit list */ | |
| 74 | struct asyncparam ms_async[MPMAXPORT][MPINSET];/* async structs */ | |
| 75 | char ms_cbuf[MPMAXPORT][MPOUTSET][CBSIZE];/* input character buffers */ | |
| 76 | } mp_softc[NMP]; | |
| 77 | ||
| 78 | struct tty mp_tty[NMP*MPCHUNK]; | |
| 79 | #ifndef lint | |
| 80 | int nmp = NMP*MPCHUNK; | |
| 81 | #endif | |
| 82 | ||
| 83 | int ttrstrt(); | |
| 84 | ||
| 85 | mpprobe(reg, vi) | |
| 86 | caddr_t reg; | |
| 87 | struct vba_device *vi; | |
| 88 | { | |
| 89 | register int br, cvec; | |
| 90 | register struct mpsoftc *ms; | |
| 91 | ||
| 92 | #ifdef lint | |
| 93 | br = 0; cvec = br; br = cvec; | |
| 94 | mpintr(0); | |
| 95 | #endif | |
| 96 | if (badaddr(reg, 2)) | |
| 97 | return (0); | |
| 98 | ms = &mp_softc[vi->ui_unit]; | |
| 99 | /* | |
| 100 | * Allocate page tables and mblok | |
| 101 | * structure (mblok in non-cached memory). | |
| 102 | */ | |
| 103 | if (vbainit(&ms->ms_buf, sizeof (struct mblok), VB_32BIT) == 0) { | |
| 104 | printf("mp%d: vbainit failed\n", vi->ui_unit); | |
| 105 | return (0); | |
| 106 | } | |
| 107 | ms->ms_mb = (struct mblok *)ms->ms_buf.vb_rawbuf; | |
| 108 | ms->ms_ivec = MPINTRBASE + 2*vi->ui_unit; /* XXX */ | |
| 109 | br = 0x14, cvec = ms->ms_ivec; /* XXX */ | |
| 7c707d99 | 110 | return (sizeof (*reg)); |
| d55465de SL |
111 | } |
| 112 | ||
| 113 | mpattach(vi) | |
| 114 | register struct vba_device *vi; | |
| 115 | { | |
| 116 | register struct mpsoftc *ms = &mp_softc[vi->ui_unit]; | |
| 117 | ||
| 118 | ms->ms_softCAR = vi->ui_flags; | |
| 119 | /* | |
| 120 | * Setup pointer to mblok, initialize bogus | |
| 121 | * status block used by mpcc to locate the pointer | |
| 122 | * and then poke the mpcc to get it to search host | |
| 123 | * memory to find mblok pointer. | |
| 124 | */ | |
| 125 | mpbogus.mbloks[vi->ui_unit] = (struct mblok *)ms->ms_buf.vb_physbuf; | |
| 126 | *(short *)vi->ui_addr = 0x100; /* magic */ | |
| 127 | } | |
| 128 | ||
| 129 | /* | |
| 130 | * Open an mpcc port. | |
| 131 | */ | |
| 132 | mpopen(dev, mode) | |
| 133 | dev_t dev; | |
| 134 | { | |
| 135 | register struct tty *tp; | |
| 136 | register struct mpsoftc *ms; | |
| 137 | int error, s, port, unit, mpu; | |
| 138 | struct vba_device *vi; | |
| 139 | struct mpport *mp; | |
| 140 | struct mpevent *ev; | |
| 141 | ||
| 142 | unit = minor(dev); | |
| 143 | mpu = MPUNIT(unit); | |
| 144 | if (mpu >= NMP || (vi = mpinfo[mpu]) == 0 || vi->ui_alive == 0) | |
| 145 | return (ENXIO); | |
| 146 | tp = &mp_tty[unit]; | |
| 147 | if (tp->t_state & TS_XCLUDE && u.u_uid != 0) | |
| 148 | return (EBUSY); | |
| 149 | ms = &mp_softc[mpu]; | |
| 150 | port = MPPORT(unit); | |
| 151 | if (ms->ms_mb->mb_proto[port] != MPPROTO_ASYNC || | |
| 152 | ms->ms_mb->mb_status != MP_OPOPEN) | |
| 153 | return (ENXIO); | |
| 154 | mp = &ms->ms_mb->mb_port[port]; /* host mpcc struct */ | |
| 155 | s = spl8(); | |
| 156 | while (mp->mp_flags & MP_PROGRESS) | |
| 157 | sleep((caddr_t)&tp->t_canq, TTIPRI); | |
| 158 | while (tp->t_state & TS_WOPEN) | |
| 159 | sleep((caddr_t)&tp->t_canq, TTIPRI); | |
| 160 | if (tp->t_state & TS_ISOPEN) { | |
| 161 | splx(s); | |
| 162 | return (0); | |
| 163 | } | |
| 164 | tp->t_state |= TS_WOPEN; | |
| 165 | tp->t_addr = (caddr_t)ms; | |
| 166 | tp->t_oproc = mpstart; | |
| 167 | tp->t_dev = dev; | |
| 168 | ttychars(tp); | |
| 169 | if (tp->t_ispeed == 0) { | |
| 170 | tp->t_ispeed = B9600; | |
| 171 | tp->t_ospeed = B9600; | |
| 172 | tp->t_flags |= ODDP|EVENP|ECHO; | |
| 173 | } | |
| 174 | /* | |
| 175 | * Initialize port state: init MPCC interface | |
| 176 | * structures for port and setup modem control. | |
| 177 | */ | |
| 178 | mp->mp_proto = MPPROTO_ASYNC; /* XXX */ | |
| 179 | error = mpportinit(ms, mp, port); | |
| 180 | if (error) | |
| 181 | goto bad; | |
| 182 | ev = mpparam(unit); | |
| 183 | if (ev == 0) { | |
| 184 | error = ENOBUFS; | |
| 185 | goto bad; | |
| 186 | } | |
| 187 | mpcmd(ev, EVCMD_OPEN, 0, ms->ms_mb, port); | |
| 188 | while ((tp->t_state & TS_CARR_ON) == 0) | |
| 189 | sleep((caddr_t)&tp->t_rawq, TTIPRI); | |
| 190 | error = mpmodem(unit, MMOD_ON); | |
| 191 | if (error) | |
| 192 | goto bad; | |
| 193 | while ((tp->t_state & TS_CARR_ON) == 0) | |
| 194 | sleep((caddr_t)&tp->t_rawq, TTIPRI); | |
| 195 | error = (*linesw[tp->t_line].l_open)(dev,tp); | |
| 196 | done: | |
| 197 | splx(s); | |
| 198 | /* wakeup anyone waiting for open to complete */ | |
| 199 | wakeup((caddr_t)&tp->t_canq); | |
| 200 | ||
| 201 | return (error); | |
| 202 | bad: | |
| 203 | tp->t_state &= ~TS_WOPEN; | |
| 204 | goto done; | |
| 205 | } | |
| 206 | ||
| 207 | /* | |
| 208 | * Close an mpcc port. | |
| 209 | */ | |
| 210 | mpclose(dev) | |
| 211 | dev_t dev; | |
| 212 | { | |
| 213 | register struct tty *tp; | |
| 214 | register struct mpport *mp; | |
| 215 | register struct mpevent *ev; | |
| 216 | int s, port, unit, error; | |
| 217 | struct mblok *mb; | |
| 218 | ||
| 219 | unit = minor(dev); | |
| 220 | tp = &mp_tty[unit]; | |
| 221 | port = MPPORT(unit); | |
| 222 | mb = mp_softc[MPUNIT(unit)].ms_mb; | |
| 223 | mp = &mb->mb_port[port]; | |
| 224 | s = spl8(); | |
| 225 | if (mp->mp_flags & MP_PROGRESS) { /* close in progress */ | |
| 226 | if (mp->mp_flags & MP_REMBSY) { | |
| 227 | mp->mp_flags &= ~MP_REMBSY; | |
| 228 | splx(s); | |
| 229 | return (0); | |
| 230 | } | |
| 231 | while (mp->mp_flags & MP_PROGRESS) | |
| 232 | sleep((caddr_t)&tp->t_canq,TTIPRI); | |
| 233 | } | |
| 234 | error = 0; | |
| 235 | mp->mp_flags |= MP_PROGRESS; | |
| 236 | (*linesw[tp->t_line].l_close)(tp); | |
| 237 | if (tp->t_state & TS_HUPCLS || (tp->t_state & TS_ISOPEN) == 0) | |
| 238 | if (error = mpmodem(unit, MMOD_OFF)) { | |
| 239 | mp->mp_flags &= ~MP_PROGRESS; | |
| 240 | goto out; | |
| 241 | } | |
| 242 | while (tp->t_state & TS_FLUSH) /* ??? */ | |
| 243 | sleep((caddr_t)&tp->t_state, TTOPRI); /* ??? */ | |
| 244 | ttyclose(tp); | |
| 245 | ev = mp_getevent(mp, unit); | |
| 246 | if (ev == 0) { | |
| 247 | error = ENOBUFS; | |
| 248 | goto out; | |
| 249 | } | |
| 250 | mpcmd(ev, EVCMD_CLOSE, 0, mb, port); | |
| 251 | out: | |
| 252 | if (mp->mp_flags & MP_REMBSY) | |
| 253 | mpclean(mb, port); | |
| 254 | splx(s); | |
| 255 | return (error); | |
| 256 | } | |
| 257 | ||
| 258 | /* | |
| 259 | * Read from an mpcc port. | |
| 260 | */ | |
| 261 | mpread(dev, uio) | |
| 262 | dev_t dev; | |
| 263 | struct uio *uio; | |
| 264 | { | |
| 265 | struct tty *tp; | |
| 266 | ||
| 267 | tp = &mp_tty[minor(dev)]; | |
| 268 | return ((*linesw[tp->t_line].l_read)(tp, uio)); | |
| 269 | } | |
| 270 | ||
| 271 | /* | |
| 272 | * Write to an mpcc port. | |
| 273 | */ | |
| 274 | mpwrite(dev, uio) | |
| 275 | dev_t dev; | |
| 276 | struct uio *uio; | |
| 277 | { | |
| 278 | struct tty *tp; | |
| 279 | ||
| 280 | tp = &mp_tty[minor(dev)]; | |
| 281 | return ((*linesw[tp->t_line].l_write)(tp, uio)); | |
| 282 | } | |
| 283 | ||
| 284 | /* | |
| 285 | * Ioctl for a mpcc port | |
| 286 | */ | |
| 287 | mpioctl(dev, cmd, data, flag) | |
| 288 | dev_t dev; | |
| 289 | caddr_t data; | |
| 290 | { | |
| 291 | register struct tty *tp; | |
| 292 | register struct mpsoftc *ms; | |
| 293 | register struct mpevent *ev; | |
| 294 | register struct mpport *mp; | |
| 295 | int s, port, error, unit; | |
| 296 | struct mblok *mb; | |
| 297 | ||
| 298 | unit = minor(dev); | |
| 299 | tp = &mp_tty[unit]; | |
| 300 | ms = &mp_softc[MPUNIT(unit)]; | |
| 301 | mb = ms->ms_mb; | |
| 302 | error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag); | |
| 303 | if (error >= 0) | |
| 304 | return (error); | |
| 305 | error = ttioctl(tp, cmd, data, flag); | |
| 306 | if (error >= 0) { | |
| 307 | if (cmd == TIOCSETP || cmd == TIOCSETN || cmd == TIOCLBIS || | |
| 308 | cmd == TIOCLBIC || cmd == TIOCLSET) { | |
| 309 | ev = mpparam(unit); | |
| 310 | if (ev == 0) | |
| 311 | error = ENOBUFS; | |
| 312 | else | |
| 313 | mpcmd(ev, EVCMD_IOCTL, A_CHGALL, mb, | |
| 314 | MPPORT(unit)); | |
| 315 | } | |
| 316 | return (error); | |
| 317 | } | |
| 318 | switch (cmd) { | |
| 319 | case TIOCSBRK: /* send break */ | |
| 320 | case TIOCCBRK: /* clear break */ | |
| 321 | port = MPPORT(unit); | |
| 322 | mp = &mb->mb_port[port]; | |
| 323 | s = spl8(); | |
| 324 | ev = mp_getevent(mp, unit); | |
| 325 | if (ev) | |
| 326 | mpcmd(ev, EVCMD_IOCTL, | |
| 327 | (cmd == TIOCSBRK ? A_BRKON : A_BRKOFF), | |
| 328 | mb, port); | |
| 329 | else | |
| 330 | error = ENOBUFS; | |
| 331 | splx(s); | |
| 332 | break; | |
| 333 | case TIOCSDTR: /* set dtr control line */ | |
| 334 | break; | |
| 335 | case TIOCCDTR: /* clear dtr control line */ | |
| 336 | break; | |
| 337 | default: | |
| 338 | error = ENOTTY; | |
| 339 | break; | |
| 340 | } | |
| 341 | return (error); | |
| 342 | } | |
| 343 | ||
| 344 | struct mpevent * | |
| 345 | mpparam(unit) | |
| 346 | int unit; | |
| 347 | { | |
| 348 | register struct mpevent *ev; | |
| 349 | register struct mpport *mp; | |
| 350 | register struct tty *tp; | |
| 351 | struct mblok *mb; | |
| 352 | struct mpsoftc *ms; | |
| 353 | register struct asyncparam *asp; | |
| 354 | int port; | |
| 355 | ||
| 356 | ms = &mp_softc[MPUNIT(unit)]; | |
| 357 | mb = ms->ms_mb; | |
| 358 | port = MPPORT(unit); | |
| 359 | mp = &mb->mb_port[port]; | |
| 360 | ev = mp_getevent(mp, unit); /* XXX */ | |
| 361 | if (ev == 0) | |
| 362 | return (ev); | |
| 363 | tp = &mp_tty[unit]; | |
| 364 | /* YUCK */ | |
| 365 | asp = &ms->ms_async[port][mp->mp_on?mp->mp_on-1:MPINSET-1]; | |
| 366 | asp->ap_xon = tp->t_startc; | |
| 367 | asp->ap_xoff = tp->t_stopc; | |
| 2281df84 KB |
368 | asp->ap_xena = ((tp->t_flags & RAW) ? MPA_DIS : MPA_ENA); |
| 369 | asp->ap_xany = ((tp->t_flags & DECCTQ) ? MPA_DIS : MPA_ENA); | |
| d55465de SL |
370 | #ifdef notnow |
| 371 | if (tp->t_flags & (RAW|LITOUT|PASS8)) { | |
| 372 | #endif | |
| 373 | asp->ap_data = MPCHAR_8; | |
| 374 | asp->ap_parity = MPPAR_NONE; | |
| 375 | #ifdef notnow | |
| 376 | } else { | |
| 377 | asp->ap_data = MPCHAR_7; | |
| 378 | if ((tp->t_flags & (EVENP|ODDP)) == ODDP) | |
| 379 | asp->ap_parity = MPPAR_ODD; | |
| 380 | else | |
| 381 | asp->ap_parity = MPPAR_EVEN; | |
| 382 | } | |
| 383 | #endif | |
| 384 | if (tp->t_ospeed == B110) | |
| 385 | asp->ap_stop = MPSTOP_2; | |
| 386 | else | |
| 387 | asp->ap_stop = MPSTOP_1; | |
| 388 | if (tp->t_ospeed == EXTA || tp->t_ospeed == EXTB) | |
| 389 | asp->ap_baud = M19200; | |
| 390 | else | |
| 391 | asp->ap_baud = tp->t_ospeed; | |
| 392 | asp->ap_loop = MPA_DIS; /* disable loopback */ | |
| 393 | asp->ap_rtimer = A_RCVTIM; /* default receive timer */ | |
| 394 | if (ms->ms_softCAR & (1<<port)) | |
| 395 | setm(&asp->ap_modem, A_DTR, ASSERT); | |
| 396 | else | |
| 397 | setm(&asp->ap_modem, A_DTR, AUTO); | |
| 398 | seti(&asp->ap_intena, A_DCD); | |
| 399 | return (ev); | |
| 400 | } | |
| 401 | ||
| 402 | mpstart(tp) | |
| 403 | register struct tty *tp; | |
| 404 | { | |
| 405 | register struct mpevent *ev; | |
| 406 | register struct mpport *mp; | |
| 407 | struct mblok *mb; | |
| 408 | struct mpsoftc *ms; | |
| 409 | int port, unit, xcnt, n, s, i; | |
| 410 | struct hxmtl *hxp; | |
| 411 | struct clist outq; | |
| 412 | ||
| 413 | s = spl8(); | |
| 414 | unit = minor(tp->t_dev); | |
| 415 | ms = &mp_softc[MPUNIT(unit)]; | |
| 416 | mb = ms->ms_mb; | |
| 417 | port = MPPORT(unit); | |
| 418 | mp = &mb->mb_port[port]; | |
| 419 | hxp = &ms->ms_hxl[port]; | |
| 420 | xcnt = 0; | |
| 421 | outq = tp->t_outq; | |
| 422 | for (i = 0; i < MPXMIT; i++) { | |
| 423 | if (tp->t_state & (TS_TIMEOUT|TS_BUSY|TS_TTSTOP)) | |
| 424 | break; | |
| 425 | if (outq.c_cc <= TTLOWAT(tp)) { | |
| 426 | if (tp->t_state & TS_ASLEEP) { | |
| 427 | tp->t_state &= ~TS_ASLEEP; | |
| 428 | wakeup((caddr_t)&tp->t_outq); | |
| 429 | } | |
| 430 | if (tp->t_wsel) { | |
| 431 | selwakeup(tp->t_wsel, tp->t_state & TS_WCOLL); | |
| 432 | tp->t_wsel = 0; | |
| 433 | tp->t_state &= ~TS_WCOLL; | |
| 434 | } | |
| 435 | } | |
| 436 | if (outq.c_cc == 0) | |
| 437 | break; | |
| 438 | /* | |
| 439 | * If we're not currently busy outputting, | |
| 440 | * and there is data to be output, set up | |
| 441 | * port transmit structure to send to mpcc. | |
| 442 | */ | |
| 443 | if (tp->t_flags & (RAW|LITOUT)) | |
| 444 | n = ndqb(&outq, 0); | |
| 445 | else { | |
| 446 | n = ndqb(&outq, 0200); | |
| 447 | if (n == 0) { | |
| 448 | n = getc(&outq); | |
| 449 | timeout(ttrstrt, (caddr_t)tp, (n&0177)+6); | |
| 450 | tp->t_state |= TS_TIMEOUT; | |
| 451 | break; | |
| 452 | } | |
| 453 | } | |
| 454 | hxp->dblock[i] = (caddr_t)vtoph(0, (int)outq.c_cf); | |
| 455 | hxp->size[i] = n; | |
| 456 | xcnt++; /* count of xmts to send */ | |
| 457 | ndadvance(&outq, n); | |
| 458 | } | |
| 459 | /* | |
| 460 | * If data to send, poke mpcc. | |
| 461 | */ | |
| 462 | if (xcnt) { | |
| 463 | ev = mp_getevent(mp, unit); | |
| 464 | if (ev == 0) { | |
| 465 | tp->t_state &= ~(TS_BUSY|TS_TIMEOUT); | |
| 466 | } else { | |
| 467 | tp->t_state |= TS_BUSY; | |
| 468 | ev->ev_count = xcnt; | |
| 469 | mpcmd(ev, EVCMD_WRITE, 0, mb, MPPORT(unit)); | |
| 470 | } | |
| 471 | } | |
| 472 | splx(s); | |
| 473 | } | |
| 474 | ||
| 475 | /* | |
| 476 | * Advance cc bytes from q but don't free memory. | |
| 477 | */ | |
| 478 | ndadvance(q, cc) | |
| 479 | register struct clist *q; | |
| 480 | register cc; | |
| 481 | { | |
| 482 | register struct cblock *bp; | |
| 483 | char *end; | |
| 484 | int rem, s; | |
| 485 | ||
| 486 | s = spltty(); | |
| 487 | if (q->c_cc <= 0) | |
| 488 | goto out; | |
| 489 | while (cc>0 && q->c_cc) { | |
| 490 | bp = (struct cblock *)((int)q->c_cf & ~CROUND); | |
| 491 | if ((int)bp == (((int)q->c_cl-1) & ~CROUND)) { | |
| 492 | end = q->c_cl; | |
| 493 | } else { | |
| 494 | end = (char *)((int)bp + sizeof (struct cblock)); | |
| 495 | } | |
| 496 | rem = end - q->c_cf; | |
| 497 | if (cc >= rem) { | |
| 498 | cc -= rem; | |
| 499 | q->c_cc -= rem; | |
| 500 | q->c_cf = bp->c_next->c_info; | |
| 501 | } else { | |
| 502 | q->c_cc -= cc; | |
| 503 | q->c_cf += cc; | |
| 504 | break; | |
| 505 | } | |
| 506 | } | |
| 507 | if (q->c_cc <= 0) { | |
| 508 | q->c_cf = q->c_cl = NULL; | |
| 509 | q->c_cc = 0; | |
| 510 | } | |
| 511 | out: | |
| 512 | splx(s); | |
| 513 | } | |
| 514 | ||
| 515 | /* | |
| 516 | * Stop output on a line, e.g. for ^S/^Q or output flush. | |
| 517 | */ | |
| 518 | mpstop(tp, rw) | |
| 519 | register struct tty *tp; | |
| 520 | int rw; | |
| 521 | { | |
| 522 | int s, port; | |
| 523 | struct mpevent *ev; | |
| 524 | struct mblok *mb; | |
| 525 | ||
| 526 | s = spl8(); | |
| 527 | /* XXX: DISABLE TRANSMITTER */ | |
| 528 | if (tp->t_state & TS_BUSY) { | |
| 529 | if ((tp->t_state & TS_TTSTOP) == 0) | |
| 530 | tp->t_state |= TS_FLUSH; | |
| 531 | } | |
| 532 | splx(s); | |
| 533 | } | |
| 534 | ||
| 535 | /* | |
| 536 | * Initialize an async port's MPCC state. | |
| 537 | */ | |
| 538 | mpportinit(ms, mp, port) | |
| 539 | register struct mpsoftc *ms; | |
| 540 | register struct mpport *mp; | |
| 541 | int port; | |
| 542 | { | |
| 543 | register struct mpevent *ev; | |
| 544 | register int i; | |
| 545 | caddr_t ptr; | |
| 546 | ||
| 547 | mp->mp_on = mp->mp_off = 0; | |
| 548 | mp->mp_nextrcv = 0; | |
| 549 | mp->mp_flags = 0; | |
| 550 | ev = &mp->mp_recvq[0]; | |
| 551 | for (i = 0; ev < &mp->mp_recvq[MPINSET]; ev++, i++) { | |
| 552 | ev->ev_status = EVSTATUS_FREE; | |
| 553 | ev->ev_cmd = 0; | |
| 554 | ev->ev_opts = 0; | |
| 555 | ev->ev_error = 0; | |
| 556 | ev->ev_flags = 0; | |
| 557 | ev->ev_count = 0; | |
| 558 | ev->ev_un.hxl = (struct hxmtl *) vtoph(0, &ms->ms_hxl[port]); | |
| 559 | ev->ev_params = (caddr_t) vtoph(0, &ms->ms_async[port][i]); | |
| 560 | } | |
| 561 | ev = &mp->mp_sendq[0]; | |
| 562 | for (i = 0; ev < &mp->mp_sendq[MPOUTSET]; ev++, i++) { | |
| 563 | /* init so that L2 can't send any events */ | |
| 564 | /* to host until open has completed */ | |
| 565 | ev->ev_status = EVSTATUS_FREE; | |
| 566 | ev->ev_cmd = 0; | |
| 567 | ev->ev_error = 0; | |
| 568 | ev->ev_flags = 0; | |
| 569 | ev->ev_count = 0; | |
| 570 | ptr = (caddr_t) &ms->ms_cbuf[port][i][0]; | |
| 571 | ev->ev_un.rcvblk = (u_char *)vtoph(0, ptr); | |
| 572 | ev->ev_params = (caddr_t) vtoph(0, ptr); | |
| 573 | } | |
| 574 | return (0); | |
| 575 | } | |
| 576 | ||
| 577 | /* | |
| 578 | * Send an event to an mpcc. | |
| 579 | */ | |
| 580 | mpcmd(ev, cmd, flags, mb, port) | |
| 581 | register struct mpevent *ev; | |
| 582 | struct mblok *mb; | |
| 583 | { | |
| 584 | int s; | |
| 585 | ||
| 586 | s = spl8(); | |
| 587 | /* move host values to inbound entry */ | |
| 588 | ev->ev_cmd = cmd; | |
| 589 | ev->ev_opts = flags; | |
| 590 | /* show event ready for mpcc */ | |
| 591 | ev->ev_status = EVSTATUS_GO; | |
| 592 | mpintmpcc(mb, port); | |
| 593 | splx(s); | |
| 594 | } | |
| 595 | ||
| 596 | /* | |
| 597 | * Return the next available event entry for the indicated port. | |
| 598 | */ | |
| 599 | struct mpevent * | |
| 600 | mp_getevent(mp, unit) | |
| 601 | register struct mpport *mp; | |
| 602 | int unit; | |
| 603 | { | |
| 604 | register struct mpevent *ev; | |
| 605 | int i, s; | |
| 606 | ||
| 607 | s = spl8(); | |
| 608 | ev = &mp->mp_recvq[mp->mp_on]; | |
| 609 | if (ev->ev_status != EVSTATUS_FREE) | |
| 610 | goto bad; | |
| 611 | /* | |
| 612 | * If not a close request, verify one extra | |
| 613 | * event is available for closing the port. | |
| 614 | */ | |
| 615 | if ((mp->mp_flags && MP_PROGRESS) == 0) { | |
| 616 | if ((i = mp->mp_on + 1) >= MPINSET) | |
| 617 | i = 0; | |
| 618 | if (mp->mp_recvq[i].ev_status != EVSTATUS_FREE) | |
| 619 | goto bad; | |
| 620 | } | |
| 621 | /* init inbound fields marking this entry as busy */ | |
| 622 | ev->ev_error = 0; | |
| 623 | ev->ev_flags = 0; | |
| 624 | ev->ev_count = 0; | |
| 625 | ev->ev_status = EVSTATUS_BUSY; | |
| 626 | /* adjust pointer to next available inbound entry */ | |
| 627 | adjptr(mp->mp_on, MPINSET); | |
| 628 | splx(s); | |
| 629 | return (ev); | |
| 630 | bad: | |
| 631 | splx(s); | |
| 632 | log(LOG_ERR, "mp%d: port%d, out of events", MPUNIT(unit), MPPORT(unit)); | |
| 633 | return ((struct mpevent *)0); | |
| 634 | } | |
| 635 | ||
| 636 | mpmodem(unit, flag) | |
| 637 | int unit, flag; | |
| 638 | { | |
| 639 | struct mpsoftc *ms = &mp_softc[MPUNIT(unit)]; | |
| 640 | int port = MPPORT(unit); | |
| 641 | register struct mpport *mp; | |
| 642 | register struct mpevent *ev; | |
| 643 | register struct asyncparam *asp; | |
| 644 | ||
| 645 | mp = &ms->ms_mb->mb_port[port]; | |
| 646 | ev = mp_getevent(mp, unit); | |
| 647 | if (ev == 0) | |
| 648 | return (ENOBUFS); | |
| 649 | /* YUCK */ | |
| 650 | asp = &ms->ms_async[port][mp->mp_on?mp->mp_on-1:MPINSET-1]; | |
| 651 | if (flag == MMOD_ON) { | |
| 652 | if (ms->ms_softCAR & (1 << port)) | |
| 653 | setm(&asp->ap_modem, A_DTR, ASSERT); | |
| 654 | else | |
| 655 | setm(&asp->ap_modem, A_DTR, AUTO); | |
| 656 | seti(&asp->ap_intena, A_DCD); | |
| 657 | } else { | |
| 658 | setm(&asp->ap_modem, 0, DROP); | |
| 659 | seti(&asp->ap_intena, 0); | |
| 660 | } | |
| 661 | mpcmd(ev, EVCMD_IOCTL, A_MDMCHG, ms->ms_mb, port); | |
| 662 | return (0); | |
| 663 | } | |
| 664 | ||
| 665 | /* | |
| 666 | * Set up the modem control structure according to mask. | |
| 667 | * Each set bit in the mask means assert the corresponding | |
| 668 | * modem control line, otherwise, it will be dropped. | |
| 669 | * RTS is special since it can either be asserted, dropped | |
| 670 | * or put in auto mode for auto modem control. | |
| 671 | */ | |
| 672 | static | |
| 673 | setm(mc, mask, rts) | |
| 674 | register struct mdmctl *mc; | |
| 675 | register int mask; | |
| 676 | { | |
| 677 | ||
| 678 | mc->mc_rngdsr = (mask & A_RNGDSR) ? ASSERT : DROP; | |
| 679 | mc->mc_rate = (mask & A_RATE) ? ASSERT : DROP; | |
| 680 | mc->mc_dcd = (mask & A_DCD) ? ASSERT : DROP; | |
| 681 | mc->mc_sectx = (mask & A_SECTX) ? ASSERT : DROP; | |
| 682 | mc->mc_cts = (mask & A_CTS) ? ASSERT : DROP; | |
| 683 | mc->mc_secrx = (mask & A_SECRX) ? ASSERT : DROP; | |
| 684 | mc->mc_dtr = (mask & A_DTR) ? ASSERT : DROP; | |
| 685 | mc->mc_rts = rts; | |
| 686 | } | |
| 687 | ||
| 688 | /* | |
| 689 | * Set up the status change enable field from mask. | |
| 690 | * When a signal is enabled in this structure and | |
| 691 | * and a change in state on a corresponding modem | |
| 692 | * control line occurs, a status change event will | |
| 693 | * be delivered to the host. | |
| 694 | */ | |
| 695 | static | |
| 696 | seti(mc, mask) | |
| 697 | register struct mdmctl *mc; | |
| 698 | register int mask; | |
| 699 | { | |
| 700 | ||
| 701 | mc->mc_rngdsr = (mask & A_RNGDSR) ? MDM_ON : MDM_OFF; | |
| 702 | mc->mc_rate = (mask & A_RATE) ? MDM_ON : MDM_OFF; | |
| 703 | mc->mc_dcd = (mask & A_DCD) ? MDM_ON : MDM_OFF; | |
| 704 | mc->mc_sectx = (mask & A_SECTX) ? MDM_ON : MDM_OFF; | |
| 705 | mc->mc_cts = (mask & A_CTS) ? MDM_ON : MDM_OFF; | |
| 706 | mc->mc_secrx = (mask & A_SECRX) ? MDM_ON : MDM_OFF; | |
| 707 | mc->mc_dtr = (mask & A_DTR) ? MDM_ON : MDM_OFF; | |
| 708 | mc->mc_rts = (mask & A_RTS) ? MDM_ON : MDM_OFF; | |
| 709 | } | |
| 710 | ||
| 711 | mpcleanport(mb, port) | |
| 712 | struct mblok *mb; | |
| 713 | int port; | |
| 714 | { | |
| 715 | register struct mpport *mp; | |
| 716 | register struct tty *tp; | |
| 717 | ||
| 718 | mp = &mb->mb_port[port]; | |
| 719 | if (mp->mp_proto == MPPROTO_ASYNC) { | |
| 720 | mp->mp_flags = MP_REMBSY; | |
| 721 | /* flush I/O queues and send hangup signals */ | |
| 722 | tp = &mp_tty[mb->mb_unit*MPCHUNK+port]; | |
| 723 | tp->t_state &= ~TS_CARR_ON; | |
| 724 | ttyflush(tp, FREAD|FWRITE); | |
| 725 | gsignal(tp->t_pgrp, SIGHUP); | |
| 726 | gsignal(tp->t_pgrp, SIGKILL); | |
| 727 | mpclose(tp->t_dev, 0); | |
| 728 | } | |
| 729 | } | |
| 730 | ||
| 731 | mpclean(mb, port) | |
| 732 | register struct mblok *mb; | |
| 733 | int port; | |
| 734 | { | |
| 735 | register struct mpport *mp; | |
| 736 | register struct mpevent *ev; | |
| 737 | register int i; | |
| 738 | char list[2], *cp; | |
| 739 | int unit; | |
| 740 | ||
| 741 | mp = &mb->mb_port[port]; | |
| 742 | unit = mb->mb_unit; | |
| 743 | for (i = mp->mp_off; i != mp->mp_on; i = (i+1 % MPINSET)) { | |
| 744 | ev = &mp->mp_recvq[i]; | |
| 745 | ev->ev_error = ENXIO; | |
| 746 | ev->ev_status = EVSTATUS_DONE; | |
| 747 | } | |
| 748 | list[0] = port, list[1] = MPPORT_EOL; | |
| 749 | mpxintr(unit, list); | |
| 750 | mprintr(unit, list); | |
| 751 | /* Clear async for port */ | |
| 752 | mp->mp_proto = MPPROTO_UNUSED; | |
| 753 | mp->mp_flags = 0; | |
| 754 | mp->mp_on = 0; | |
| 755 | mp->mp_off = 0; | |
| 756 | mp->mp_nextrcv = 0; | |
| 757 | ||
| 758 | mp_tty[unit*MPCHUNK + port].t_state = 0; | |
| 759 | for (ev = &mp->mp_sendq[0]; ev < &mp->mp_sendq[MPOUTSET]; ev++) { | |
| 760 | ev->ev_status = EVSTATUS_FREE; | |
| 761 | ev->ev_cmd = 0; | |
| 762 | ev->ev_error = 0; | |
| 763 | ev->ev_un.rcvblk = 0; | |
| 764 | ev->ev_params = 0; | |
| 765 | } | |
| 766 | for (ev = &mp->mp_recvq[0]; ev < &mp->mp_recvq[MPINSET]; ev++) { | |
| 767 | ev->ev_status = EVSTATUS_FREE; | |
| 768 | ev->ev_cmd = 0; | |
| 769 | ev->ev_error = 0; | |
| 770 | ev->ev_params = 0; | |
| 771 | } | |
| 772 | } | |
| 773 | ||
| 774 | /* | |
| 775 | * MPCC interrupt handler. | |
| 776 | */ | |
| 777 | mpintr(mpcc) | |
| 778 | int mpcc; | |
| 779 | { | |
| 780 | register struct mblok *mb; | |
| 781 | register struct his *his; | |
| 782 | register int i; | |
| 783 | ||
| 784 | mb = mp_softc[mpcc].ms_mb; | |
| 785 | if (mb == 0) { | |
| 786 | printf("mp%d: stray interrupt\n", mpcc); | |
| 787 | return; | |
| 788 | } | |
| 789 | his = &mb->mb_hostint; | |
| 790 | his->semaphore &= ~MPSEMA_AVAILABLE; | |
| 791 | /* | |
| 792 | * Check for events to be processed. | |
| 793 | */ | |
| 794 | if (his->proto[MPPROTO_ASYNC].outbdone[0] != MPPORT_EOL) | |
| 795 | mprintr(mpcc, his->proto[MPPROTO_ASYNC].outbdone); | |
| 796 | if (his->proto[MPPROTO_ASYNC].inbdone[0] != MPPORT_EOL) | |
| 797 | mpxintr(mpcc, his->proto[MPPROTO_ASYNC].inbdone); | |
| 798 | if (mb->mb_harderr || mb->mb_softerr) | |
| 799 | mperror(mb, mpcc); | |
| 800 | his->semaphore |= MPSEMA_AVAILABLE; | |
| 801 | } | |
| 802 | ||
| 803 | /* | |
| 804 | * Handler for processing completion of transmitted events. | |
| 805 | */ | |
| 806 | mpxintr(unit, list) | |
| 807 | register char *list; | |
| 808 | { | |
| 809 | register struct mpport *mp; | |
| 810 | register struct mpevent *ev; | |
| 811 | register struct mblok *mb; | |
| 812 | register struct tty *tp; | |
| 813 | register struct asyncparam *ap; | |
| 814 | struct mpsoftc *ms; | |
| 815 | int port, i, j; | |
| 816 | ||
| 817 | ms = &mp_softc[unit]; | |
| 818 | mb = mp_softc[unit].ms_mb; | |
| 819 | for (j = 0; j < MPMAXPORT && ((port = *list++) != MPPORT_EOL); j++) { | |
| 820 | /* | |
| 821 | * Process each completed entry in the inbound queue. | |
| 822 | */ | |
| 823 | mp = &mb->mb_port[port]; | |
| 824 | tp = &mp_tty[unit*MPCHUNK + port]; | |
| 825 | #define nextevent(mp) &mp->mp_recvq[mp->mp_off] | |
| 826 | ev = nextevent(mp); | |
| 827 | for(; ev->ev_status & EVSTATUS_DONE; ev = nextevent(mp)) { | |
| 828 | /* YUCK */ | |
| 829 | ap = &ms->ms_async[port][mp->mp_off]; | |
| 830 | mppurge(ap, sizeof (*ap)); | |
| 831 | switch (ev->ev_cmd) { | |
| 832 | case EVCMD_OPEN: | |
| 833 | /* | |
| 834 | * Open completion, start all reads and | |
| 835 | * assert modem status information. | |
| 836 | */ | |
| 837 | for (i = 0; i < MPOUTSET; i++) | |
| 838 | mp->mp_sendq[i].ev_status = EVSTATUS_GO; | |
| 839 | (*linesw[tp->t_line].l_modem) | |
| 840 | (tp, ap->ap_modem.mc_dcd == ASSERT); | |
| 841 | break; | |
| 842 | case EVCMD_CLOSE: | |
| 843 | /* | |
| 844 | * Close completion, flush all pending | |
| 845 | * transmissions, free resources, and | |
| 846 | * cleanup mpcc port state. | |
| 847 | */ | |
| 848 | for (i = 0; i < MPOUTSET; i++) { | |
| 849 | mp->mp_sendq[i].ev_status = | |
| 850 | EVSTATUS_FREE; | |
| 851 | mp->mp_sendq[i].ev_un.rcvblk = 0; | |
| 852 | mp->mp_sendq[i].ev_params = 0; | |
| 853 | } | |
| 854 | tp->t_state &= ~TS_CARR_ON; | |
| 855 | mp->mp_on = mp->mp_off = mp->mp_nextrcv = 0; | |
| 856 | mp->mp_flags &= ~MP_PROGRESS; | |
| 857 | mp->mp_proto = MPPROTO_UNUSED; | |
| 858 | wakeup((caddr_t)&tp->t_canq); /* ??? */ | |
| 859 | goto done; | |
| 860 | case EVCMD_IOCTL: | |
| 861 | /* | |
| 862 | * Nothing to do, just pitch. | |
| 863 | */ | |
| 864 | break; | |
| 865 | case EVCMD_WRITE: | |
| 866 | /* | |
| 867 | * Transmission completed, update tty | |
| 868 | * state and restart output. | |
| 869 | */ | |
| 870 | tp->t_state &= ~TS_BUSY; | |
| 871 | if (tp->t_state & TS_FLUSH) { | |
| 872 | tp->t_state &= ~TS_FLUSH; | |
| 873 | wakeup((caddr_t)&tp->t_state); | |
| 874 | } else { | |
| 875 | register int cc = 0, i; | |
| 876 | struct hxmtl *hxp; | |
| 877 | ||
| 878 | hxp = &ms->ms_hxl[port]; | |
| 879 | for(i = 0; i < ev->ev_count; i++) | |
| 880 | cc += hxp->size[i]; | |
| 881 | ndflush(&tp->t_outq, cc); | |
| 882 | } | |
| 883 | switch (ev->ev_error) { | |
| 884 | case A_SIZERR: /*# error in xmt data size */ | |
| 885 | mplog(unit, port, A_XSIZE, 0); | |
| 886 | break; | |
| 887 | case A_NXBERR: /*# no more xmt evt buffers */ | |
| 888 | mplog(unit, port, A_NOXBUF, 0); | |
| 889 | break; | |
| 890 | } | |
| 891 | mpstart(tp); | |
| 892 | break; | |
| 893 | default: | |
| 894 | mplog(unit, port, A_INVCMD, ev->ev_cmd); | |
| 895 | break; | |
| 896 | } | |
| 897 | /* re-init all values in this entry */ | |
| 898 | ev->ev_cmd = 0; | |
| 899 | ev->ev_opts = 0; | |
| 900 | ev->ev_error = 0; | |
| 901 | ev->ev_flags = 0; | |
| 902 | ev->ev_count = 0; | |
| 903 | /* show this entry is available for use */ | |
| 904 | ev->ev_status = EVSTATUS_FREE; | |
| 905 | adjptr(mp->mp_off, MPINSET); | |
| 906 | #undef nextevent | |
| 907 | } | |
| 908 | done: | |
| 909 | ; | |
| 910 | } | |
| 911 | } | |
| 912 | ||
| 913 | /* | |
| 914 | * Handler for processing received events. | |
| 915 | */ | |
| 916 | mprintr(unit, list) | |
| 917 | char *list; | |
| 918 | { | |
| 919 | register struct tty *tp; | |
| 920 | register struct mpport *mp; | |
| 921 | register struct mpevent *ev; | |
| 922 | struct mblok *mb; | |
| 923 | register int cc; | |
| 924 | register char *cp; | |
| 925 | struct mpsoftc *ms; | |
| 926 | caddr_t ptr; | |
| 927 | char *rcverr; | |
| 928 | int port, i; | |
| 929 | ||
| 930 | ms = &mp_softc[unit]; | |
| 931 | mb = mp_softc[unit].ms_mb; | |
| 932 | for (i = 0; i < MPMAXPORT && (port = *list++) != MPPORT_EOL; i++) { | |
| 933 | tp = &mp_tty[unit*MPCHUNK + port]; | |
| 934 | mp = &mb->mb_port[port]; | |
| 935 | ev = &mp->mp_sendq[mp->mp_nextrcv]; | |
| 936 | while (ev->ev_status & EVSTATUS_DONE) { | |
| 937 | if (ev->ev_cmd != EVCMD_READ && | |
| 938 | ev->ev_cmd != EVCMD_STATUS) { | |
| 939 | mplog(unit, port, "unexpected command", | |
| 940 | ev->ev_cmd); | |
| 941 | goto next; | |
| 942 | } | |
| 943 | if (ev->ev_cmd == EVCMD_STATUS) { | |
| 944 | /* | |
| 945 | * Status change, look for carrier changes. | |
| 946 | */ | |
| 947 | if (ev->ev_opts == DCDASRT || | |
| 948 | ev->ev_opts == DCDDROP) | |
| 949 | (*linesw[tp->t_line].l_modem) | |
| 950 | (tp, ev->ev_opts == DCDASRT); | |
| 951 | else | |
| 952 | mplog(unit, port, | |
| 953 | "unexpect status command", | |
| 954 | ev->ev_opts); | |
| 955 | goto next; | |
| 956 | } | |
| 957 | /* | |
| 958 | * Process received data. | |
| 959 | */ | |
| 960 | if ((tp->t_state & (TS_ISOPEN|TS_WOPEN)) == 0) | |
| 961 | goto next; | |
| 962 | cc = ev->ev_count; | |
| 963 | if (cc == 0) | |
| 964 | goto next; | |
| 965 | /* YUCK */ | |
| 966 | cp = ms->ms_cbuf[port][mp->mp_nextrcv]; | |
| 967 | mppurge(cp, CBSIZE); | |
| 968 | while (cc-- > 0) { | |
| 969 | /* | |
| 970 | * A null character is inserted, potentially | |
| 971 | * when a break or framing error occurs. If | |
| 972 | * we're not in raw mode, substitute the | |
| 973 | * interrupt character. | |
| 974 | */ | |
| 975 | if (*cp == 0 && | |
| 976 | (ev->ev_error == BRKASRT || | |
| 977 | ev->ev_error == FRAMERR)) | |
| 978 | if ((tp->t_flags&RAW) == 0) | |
| 979 | *cp = tp->t_intrc; | |
| 980 | (*linesw[tp->t_line].l_rint)(*cp++, tp); | |
| 981 | } | |
| 982 | /* setup for next read */ | |
| 983 | ptr = (caddr_t)&mp_softc[unit].ms_cbuf[port][mp->mp_nextrcv][0]; | |
| 984 | ev->ev_un.rcvblk = (u_char *)vtoph(0, ptr); | |
| 985 | ev->ev_params = (caddr_t) vtoph(0, ptr); | |
| 86b469ee KB |
986 | switch(ev->ev_error) { |
| 987 | case RCVDTA: /* Normal (good) rcv data */ | |
| 988 | /* do not report the following */ | |
| 989 | /* they are "normal" errors */ | |
| d55465de | 990 | case FRAMERR: /* frame error */ |
| 86b469ee KB |
991 | case BRKASRT: /* Break condition */ |
| 992 | case PARERR: /* parity error */ | |
| 993 | rcverr = (char *)0; | |
| d55465de SL |
994 | break; |
| 995 | case OVRNERR: /* Overrun error */ | |
| 996 | rcverr = "overrun error"; | |
| 997 | break; | |
| 998 | case OVFERR: /* Overflow error */ | |
| 999 | rcverr = "overflow error"; | |
| 1000 | break; | |
| 1001 | default: | |
| 1002 | rcverr = "undefined rcv error"; | |
| 1003 | } | |
| 1004 | if (rcverr != (char *)0) | |
| 1005 | mplog(unit, port, rcverr, ev->ev_error); | |
| 1006 | next: | |
| 1007 | ev->ev_cmd = 0; | |
| 1008 | ev->ev_opts = 0; | |
| 1009 | ev->ev_error = 0; | |
| 1010 | ev->ev_flags = 0; | |
| 1011 | ev->ev_status = EVSTATUS_GO; /* start next read */ | |
| 1012 | adjptr(mp->mp_nextrcv, MPOUTSET); | |
| 1013 | ev = &mp->mp_sendq[mp->mp_nextrcv]; | |
| 1014 | } | |
| 1015 | } | |
| 1016 | } | |
| 1017 | ||
| 1018 | /* | |
| 1019 | * Log an mpcc diagnostic. | |
| 1020 | */ | |
| 1021 | mplog(unit, port, cp, flags) | |
| 1022 | char *cp; | |
| 1023 | { | |
| 1024 | ||
| 1025 | if (flags) | |
| 1026 | log(LOG_ERR, "mp%d: port%d, %s (%d)\n", | |
| 1027 | unit, port, cp, flags); | |
| 1028 | else | |
| 1029 | log(LOG_ERR, "mp%d: port%d, %s\n", unit, port, cp); | |
| 1030 | } | |
| 1031 | ||
| 1032 | int MPHOSTINT = 1; | |
| 1033 | ||
| 1034 | mptimeint(mb) | |
| 1035 | register struct mblok *mb; | |
| 1036 | { | |
| 1037 | ||
| 1038 | mb->mb_mpintcnt = 0; | |
| 1039 | mb->mb_mpintclk = (caddr_t)0; | |
| 1040 | *(u_short *)mpinfo[mb->mb_unit]->ui_addr = 2; | |
| 1041 | } | |
| 1042 | ||
| 1043 | /* | |
| 1044 | * Interupt mpcc | |
| 1045 | */ | |
| 1046 | mpintmpcc(mb, port) | |
| 1047 | register struct mblok *mb; | |
| 1048 | u_short port; | |
| 1049 | { | |
| 1050 | ||
| 1051 | mb->mb_intr[port] |= MPSEMA_WORK; | |
| 1052 | if (++mb->mb_mpintcnt == MPHOSTINT) { | |
| 1053 | mb->mb_mpintcnt = 0; | |
| 1054 | *(u_short *)mpinfo[mb->mb_unit]->ui_addr = 2; | |
| 1055 | if (mb->mb_mpintclk) { | |
| 1056 | untimeout(mptimeint, mb); | |
| 1057 | mb->mb_mpintclk = 0; | |
| 1058 | } | |
| 1059 | } else { | |
| 1060 | if (mb->mb_mpintclk == 0) { | |
| 1061 | timeout(mptimeint, mb, 4); | |
| 1062 | mb->mb_mpintclk = (caddr_t)1; | |
| 1063 | } | |
| 1064 | } | |
| 1065 | } | |
| 1066 | ||
| 1067 | static char *mpherrmsg[] = { | |
| 1068 | "", | |
| 1069 | "Bus error", /* MPBUSERR */ | |
| 1070 | "Address error", /* ADDRERR */ | |
| 1071 | "Undefined ecc interrupt", /* UNDECC */ | |
| 1072 | "Undefined interrupt", /* UNDINT */ | |
| 1073 | "Power failure occurred", /* PWRFL */ | |
| 1074 | "Stray transmit done interrupt", /* NOXENTRY */ | |
| 1075 | "Two fast timers on one port", /* TWOFTMRS */ | |
| 1076 | "Interrupt queue full", /* INTQFULL */ | |
| 1077 | "Interrupt queue ack error", /* INTQERR */ | |
| 1078 | "Uncorrectable dma parity error", /* CBPERR */ | |
| 1079 | "32 port ACAP failed power up", /* ACPDEAD */ | |
| 1080 | }; | |
| 1081 | #define NHERRS (sizeof (mpherrmsg) / sizeof (mpherrmsg[0])) | |
| 1082 | ||
| 1083 | mperror(mb, unit) | |
| 1084 | register struct mblok *mb; | |
| 1085 | int unit; | |
| 1086 | { | |
| 1087 | register char *cp; | |
| 1088 | register int i; | |
| 1089 | ||
| 1090 | if (mb->mb_softerr) { | |
| 1091 | switch (mb->mb_softerr) { | |
| 1092 | case DMAPERR: /* dma parity error */ | |
| 1093 | cp = "dma parity error"; | |
| 1094 | break; | |
| 1095 | case ECCERR: | |
| 1096 | cp = "local memory ecc error"; | |
| 1097 | break; | |
| 1098 | default: | |
| 1099 | cp = "unknown error"; | |
| 1100 | break; | |
| 1101 | } | |
| 1102 | log(LOG_ERR, "mp%d: soft error, %s", unit, cp); | |
| 1103 | mb->mb_softerr = 0; | |
| 1104 | } | |
| 1105 | if (mb->mb_harderr) { | |
| 1106 | if (mb->mb_harderr < NHERRS) | |
| 1107 | cp = mpherrmsg[mb->mb_harderr]; | |
| 1108 | else | |
| 1109 | cp = "unknown error"; | |
| 1110 | log(LOG_ERR, "mp%d: hard error, %s", unit, cp); | |
| 1111 | if (mb->mb_status == MP_OPOPEN) { | |
| 1112 | for (i = 0; i < MPMAXPORT; i++) { | |
| 1113 | mpcleanport(mb, i); | |
| 1114 | mb->mb_proto[i] = MPPROTO_UNUSED; | |
| 1115 | } | |
| 1116 | } | |
| 1117 | mb->mb_harderr = 0; | |
| 1118 | mb->mb_status = 0; | |
| 1119 | } | |
| 1120 | } | |
| 1121 | ||
| 1122 | mppurge(addr, cc) | |
| 1123 | register caddr_t addr; | |
| 1124 | register int cc; | |
| 1125 | { | |
| 1126 | ||
| 1127 | for (; cc >= 0; addr += NBPG, cc -= NBPG) | |
| 1128 | mtpr(P1DC, addr); | |
| 1129 | } | |
| 1130 | ||
| 1131 | /* | |
| 1132 | * MPCC Download Pseudo-device. | |
| 1133 | */ | |
| 1134 | char mpdlbuf[MPDLBUFSIZE]; | |
| 1135 | int mpdlbusy; /* interlock on download buffer */ | |
| 1136 | int mpdlerr; | |
| 1137 | ||
| 1138 | mpdlopen(dev) | |
| 1139 | dev_t dev; | |
| 1140 | { | |
| 1141 | int unit, mpu; | |
| 1142 | struct vba_device *vi; | |
| 1143 | ||
| 1144 | unit = minor(dev); | |
| 1145 | mpu = MPUNIT(unit); | |
| 1146 | if (mpu >= NMP || (vi = mpinfo[mpu]) == 0 || vi->ui_alive == 0) | |
| 1147 | return (ENODEV); | |
| 1148 | return (0); | |
| 1149 | } | |
| 1150 | ||
| 1151 | mpdlwrite(dev, uio) | |
| 1152 | dev_t dev; | |
| 1153 | struct uio *uio; | |
| 1154 | { | |
| 1155 | register struct mpsoftc *ms = &mp_softc[MPUNIT(minor(dev))]; | |
| 1156 | register struct mpdl *dl; | |
| 1157 | int error; | |
| 1158 | ||
| 1159 | if (ms->ms_mb == 0 || ms->ms_mb->mb_status != MP_DLOPEN) | |
| 1160 | return (EFAULT); | |
| 1161 | dl = &ms->ms_mb->mb_dl; | |
| 1162 | dl->mpdl_count = uio->uio_iov->iov_len; | |
| 1163 | dl->mpdl_data = (caddr_t) vtoph((struct proc *)0, mpdlbuf); | |
| 1164 | if (error = uiomove(mpdlbuf, dl->mpdl_count, UIO_WRITE, uio)) | |
| 1165 | return (error); | |
| 1166 | uio->uio_resid -= dl->mpdl_count; /* set up return from write */ | |
| 1167 | dl->mpdl_cmd = MPDLCMD_NORMAL; | |
| 1168 | error = mpdlwait(dl); | |
| 1169 | return (error); | |
| 1170 | } | |
| 1171 | ||
| 1172 | mpdlclose(dev) | |
| 1173 | dev_t dev; | |
| 1174 | { | |
| 1175 | register struct mblok *mb = mp_softc[MPUNIT(minor(dev))].ms_mb; | |
| 1176 | int ret = 0; | |
| 1177 | ||
| 1178 | if (mb == 0 || mb->mb_status != MP_DLDONE) { | |
| 1179 | mpbogus.status = 0; | |
| 1180 | if (mpbogus.mb == mpbogus.mbloks[MPUNIT(minor(dev))]) | |
| 1181 | mpdlbusy--; | |
| 1182 | return (EEXIST); | |
| 1183 | } | |
| 1184 | mb->mb_status = MP_OPOPEN; | |
| 1185 | mpbogus.status = 0; | |
| 1186 | /* set to dead, for board handshake */ | |
| 1187 | mb->mb_hostint.imok = MPIMOK_DEAD; | |
| 1188 | return (0); | |
| 1189 | } | |
| 1190 | ||
| 682cef57 MK |
1191 | mpreset(dev) |
| 1192 | dev_t dev; | |
| 1193 | { | |
| 1194 | /* XXX */ | |
| 1195 | } | |
| 1196 | ||
| d55465de SL |
1197 | int mpdltimeout(); |
| 1198 | ||
| 1199 | mpdlioctl(dev, cmd, data, flag) | |
| 1200 | dev_t dev; | |
| 1201 | caddr_t data; | |
| 1202 | { | |
| 1203 | register struct mblok *mb; | |
| 1204 | register struct mpdl *dl; | |
| 1205 | int unit, error, s, i, j; | |
| 1206 | ||
| 1207 | mb = mp_softc[unit=MPUNIT(minor(dev))].ms_mb; | |
| 1208 | if (mb == 0) | |
| 1209 | return (EEXIST); | |
| 1210 | dl = &mb->mb_dl; | |
| 1211 | error = 0; | |
| 1212 | switch (cmd) { | |
| 1213 | case MPIOPORTMAP: | |
| 1214 | bcopy(data, (caddr_t)mb->mb_proto, sizeof (mb->mb_proto)); | |
| 1215 | break; | |
| 1216 | case MPIOHILO: | |
| 1217 | bcopy(data, (caddr_t)&mb->mb_hiport, 2*(sizeof(mb->mb_hiport))); | |
| 1218 | break; | |
| 1219 | case MPIOENDDL: | |
| 1220 | dl->mpdl_count = 0; | |
| 1221 | dl->mpdl_data = 0; | |
| 1222 | dl->mpdl_cmd = MPIOENDDL&IOCPARM_MASK; | |
| 1223 | error = mpdlwait(dl); | |
| 1224 | mpccinit(unit); | |
| 1225 | mb->mb_status = MP_DLDONE; | |
| 1226 | mpdlbusy--; | |
| 1227 | break; | |
| 1228 | case MPIOENDCODE: | |
| 1229 | dl->mpdl_count = 0; | |
| 1230 | dl->mpdl_data = 0; | |
| 1231 | dl->mpdl_cmd = MPIOENDCODE&IOCPARM_MASK; | |
| 1232 | error = mpdlwait(dl); | |
| 1233 | break; | |
| 1234 | case MPIOASYNCNF: | |
| 1235 | bcopy(data, mpdlbuf, sizeof (struct abdcf)); | |
| 1236 | dl->mpdl_data = (caddr_t) vtoph((struct proc *)0, mpdlbuf); | |
| 1237 | dl->mpdl_count = sizeof (struct abdcf); | |
| 1238 | dl->mpdl_cmd = MPIOASYNCNF&IOCPARM_MASK; | |
| 1239 | error = mpdlwait(dl); | |
| 1240 | break; | |
| 1241 | case MPIOSTARTDL: | |
| 1242 | while (mpdlbusy) | |
| 1243 | sleep((caddr_t)&mpdlbusy, PZERO+1); | |
| 1244 | mpdlbusy++; | |
| 1245 | /* initialize the downloading interface */ | |
| 1246 | mpbogus.magic = MPMAGIC; | |
| 1247 | mpbogus.mb = mpbogus.mbloks[unit]; | |
| 1248 | mpbogus.status = 1; | |
| 1249 | dl->mpdl_status = EVSTATUS_FREE; | |
| 1250 | dl->mpdl_count = 0; | |
| 1251 | dl->mpdl_cmd = 0; | |
| 1252 | dl->mpdl_data = (char *) 0; | |
| 1253 | mpdlerr = 0; | |
| 1254 | mb->mb_magic = MPMAGIC; | |
| 1255 | mb->mb_ivec = mp_softc[unit].ms_ivec+1; /* download vector */ | |
| 1256 | mb->mb_status = MP_DLPEND; | |
| 1257 | mb->mb_diagswitch[0] = 'A'; | |
| 1258 | mb->mb_diagswitch[1] = 'P'; | |
| 1259 | s = spl8(); | |
| 1260 | *(u_short *)mpinfo[unit]->ui_addr = 2; | |
| 1261 | timeout(mpdltimeout, mb, 30*hz); /* approx 15 seconds */ | |
| 1262 | sleep((caddr_t)&mb->mb_status, PZERO+1); | |
| 1263 | splx(s); | |
| 1264 | if (mb->mb_status == MP_DLOPEN) { | |
| 1265 | untimeout(mpdltimeout, mb); | |
| 1266 | } else if (mb->mb_status == MP_DLTIME) { | |
| 1267 | mpbogus.status = 0; | |
| 1268 | error = ETIMEDOUT; | |
| 1269 | } else { | |
| 1270 | mpbogus.status = 0; | |
| 1271 | error = ENXIO; | |
| 1272 | log(LOG_ERR, "mp%d: start download: unknown status %x", | |
| 1273 | unit, mb->mb_status); | |
| 1274 | } | |
| 1275 | bzero(mb->mb_port, sizeof (mb->mb_port)); | |
| 1276 | break; | |
| 1277 | case MPIORESETBOARD: | |
| 1278 | s = spl8(); | |
| 1279 | if (mb->mb_imokclk) | |
| 1280 | mb->mb_imokclk = 0; | |
| 1281 | *(u_short *)mpinfo[unit]->ui_addr = 0x100; | |
| 1282 | if (mb->mb_status == MP_DLOPEN || mb->mb_status == MP_DLDONE) { | |
| 1283 | mpdlerr = MP_DLERROR; | |
| 1284 | dl->mpdl_status = EVSTATUS_FREE; | |
| 1285 | wakeup((caddr_t)&dl->mpdl_status); | |
| 1286 | mpbogus.status = 0; | |
| 1287 | } | |
| 1288 | for (i = 0; i < MPMAXPORT; i++) { | |
| 1289 | if (mb->mb_harderr || mb->mb_softerr) | |
| 1290 | mperror(mb, i); | |
| 1291 | mpcleanport(mb, i); | |
| 1292 | mb->mb_proto[i] = MPPROTO_UNUSED; | |
| 1293 | } | |
| 1294 | mb->mb_status = 0; | |
| 1295 | splx(s); | |
| 1296 | break; | |
| 1297 | default: | |
| 1298 | error = EINVAL; | |
| 1299 | break; | |
| 1300 | } | |
| 1301 | return (error); | |
| 1302 | } | |
| 1303 | ||
| 1304 | mpccinit(unit) | |
| 1305 | int unit; | |
| 1306 | { | |
| 1307 | register struct mblok *mb = mp_softc[unit].ms_mb; | |
| 1308 | register struct his *his; | |
| 1309 | register int i, j; | |
| 1310 | ||
| 1311 | mb->mb_status = MP_DLDONE; | |
| 1312 | mb->mb_ivec = mp_softc[unit].ms_ivec; | |
| 1313 | mb->mb_magic = MPMAGIC; | |
| 1314 | /* Init host interface structure */ | |
| 1315 | his = &mb->mb_hostint; | |
| 1316 | his->semaphore = MPSEMA_AVAILABLE; | |
| 1317 | for (i = 0; i < NMPPROTO; i++) | |
| 1318 | for (j = 0; j < MPMAXPORT; j++) { | |
| 1319 | his->proto[i].inbdone[j] = MPPORT_EOL; | |
| 1320 | his->proto[i].outbdone[j] = MPPORT_EOL; | |
| 1321 | } | |
| 1322 | mb->mb_unit = unit; | |
| 1323 | } | |
| 1324 | ||
| 1325 | mpdlintr(mpcc) | |
| 1326 | int mpcc; | |
| 1327 | { | |
| 1328 | register struct mblok *mb; | |
| 1329 | register struct mpdl *dl; | |
| 1330 | ||
| 1331 | mb = mp_softc[mpcc].ms_mb; | |
| 1332 | if (mb == 0) { | |
| 1333 | printf("mp%d: stray download interrupt\n", mpcc); | |
| 1334 | return; | |
| 1335 | } | |
| 1336 | dl = &mb->mb_dl; | |
| 1337 | switch (mb->mb_status) { | |
| 1338 | case MP_DLOPEN: | |
| 1339 | if (dl->mpdl_status != EVSTATUS_DONE) | |
| 1340 | mpdlerr = MP_DLERROR; | |
| 1341 | dl->mpdl_status = EVSTATUS_FREE; | |
| 1342 | wakeup((caddr_t)&dl->mpdl_status); | |
| 1343 | return; | |
| 1344 | case MP_DLPEND: | |
| 1345 | mb->mb_status = MP_DLOPEN; | |
| 1346 | wakeup(&mb->mb_status); | |
| 1347 | /* fall thru... */ | |
| 1348 | case MP_DLTIME: | |
| 1349 | return; | |
| 1350 | case MP_OPOPEN: | |
| 1351 | if (mb->mb_imokclk) | |
| 1352 | mb->mb_imokclk = 0; | |
| 1353 | mb->mb_nointcnt = 0; /* reset no interrupt count */ | |
| 1354 | mb->mb_hostint.imok = MPIMOK_DEAD; | |
| 1355 | mb->mb_imokclk = (caddr_t)1; | |
| 1356 | break; | |
| 1357 | default: | |
| 1358 | log(LOG_ERR, "mp%d: mpdlintr, status %x\n", | |
| 1359 | mpcc, mb->mb_status); | |
| 1360 | break; | |
| 1361 | } | |
| 1362 | } | |
| 1363 | ||
| 1364 | mpdltimeout(mp) | |
| 1365 | struct mblok *mp; | |
| 1366 | { | |
| 1367 | ||
| 1368 | mp->mb_status = MP_DLTIME; | |
| 1369 | wakeup((caddr_t)&mp->mb_status); | |
| 1370 | } | |
| 1371 | ||
| 1372 | /* | |
| 1373 | * Wait for a transfer to complete or a timeout to occur. | |
| 1374 | */ | |
| 1375 | mpdlwait(dl) | |
| 1376 | register struct mpdl *dl; | |
| 1377 | { | |
| 1378 | int s, error = 0; | |
| 1379 | ||
| 1380 | s = spl8(); | |
| 1381 | dl->mpdl_status = EVSTATUS_GO; | |
| 1382 | while (dl->mpdl_status != EVSTATUS_FREE) { | |
| 1383 | sleep((caddr_t)&dl->mpdl_status, PZERO+1); | |
| 1384 | if (mpdlerr == MP_DLERROR) | |
| 1385 | error = EIO; | |
| 1386 | } | |
| 1387 | splx(s); | |
| 1388 | return (error); | |
| 1389 | } | |
| 1390 | #endif |