if_cx.c revision 171613
1/*- 2 * Cronyx-Sigma adapter driver for FreeBSD. 3 * Supports PPP/HDLC and Cisco/HDLC protocol in synchronous mode, 4 * and asyncronous channels with full modem control. 5 * Keepalive protocol implemented in both Cisco and PPP modes. 6 * 7 * Copyright (C) 1994-2002 Cronyx Engineering. 8 * Author: Serge Vakulenko, <vak@cronyx.ru> 9 * 10 * Copyright (C) 1999-2004 Cronyx Engineering. 11 * Rewritten on DDK, ported to NETGRAPH, rewritten for FreeBSD 3.x-5.x by 12 * Kurakin Roman, <rik@cronyx.ru> 13 * 14 * This software is distributed with NO WARRANTIES, not even the implied 15 * warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 16 * 17 * Authors grant any other persons or organisations a permission to use, 18 * modify and redistribute this software in source and binary forms, 19 * as long as this message is kept with the software, all derivative 20 * works or modified versions. 21 * 22 * Cronyx Id: if_cx.c,v 1.1.2.34 2004/06/23 17:09:13 rik Exp $ 23 */ 24 25#include <sys/cdefs.h> 26__FBSDID("$FreeBSD: head/sys/dev/cx/if_cx.c 171613 2007-07-27 11:59:57Z rwatson $"); 27 28#include <sys/param.h> 29 30#include <sys/systm.h> 31#include <sys/kernel.h> 32#include <sys/module.h> 33#include <sys/priv.h> 34#include <sys/proc.h> 35#include <sys/mbuf.h> 36#include <sys/sockio.h> 37#include <sys/malloc.h> 38#include <sys/socket.h> 39#include <sys/sysctl.h> 40#include <sys/conf.h> 41#include <sys/errno.h> 42#include <sys/serial.h> 43#include <sys/tty.h> 44#include <sys/bus.h> 45#include <machine/bus.h> 46#include <sys/rman.h> 47#include <isa/isavar.h> 48#include <sys/fcntl.h> 49#include <sys/interrupt.h> 50#include <vm/vm.h> 51#include <vm/pmap.h> 52#include <net/if.h> 53#include <machine/cpufunc.h> 54#include <machine/cserial.h> 55#include <machine/resource.h> 56#include <dev/cx/machdep.h> 57#include <dev/cx/cxddk.h> 58#include <dev/cx/cronyxfw.h> 59#include "opt_ng_cronyx.h" 60#ifdef NETGRAPH_CRONYX 61# include "opt_netgraph.h" 62# include <netgraph/ng_message.h> 63# include <netgraph/netgraph.h> 64# include <dev/cx/ng_cx.h> 65#else 66# include <net/if_types.h> 67# include <net/if_sppp.h> 68# define PP_CISCO IFF_LINK2 69# include <net/bpf.h> 70#endif 71 72#define NCX 1 73 74/* If we don't have Cronyx's sppp version, we don't have fr support via sppp */ 75#ifndef PP_FR 76#define PP_FR 0 77#endif 78 79#define CX_DEBUG(d,s) ({if (d->chan->debug) {\ 80 printf ("%s: ", d->name); printf s;}}) 81#define CX_DEBUG2(d,s) ({if (d->chan->debug>1) {\ 82 printf ("%s: ", d->name); printf s;}}) 83 84#define CX_LOCK_NAME "cxX" 85 86static int cx_mpsafenet = 1; 87TUNABLE_INT("debug.cx.mpsafenet", &cx_mpsafenet); 88SYSCTL_NODE(_debug, OID_AUTO, cx, CTLFLAG_RD, 0, "Cronyx Sigma Adapters"); 89SYSCTL_INT(_debug_cx, OID_AUTO, mpsafenet, CTLFLAG_RD, &cx_mpsafenet, 0, 90 "Enable/disable MPSAFE network support for Cronyx Sigma Adapters"); 91 92#define CX_LOCK(_bd) do { \ 93 if (cx_mpsafenet) \ 94 mtx_lock (&(_bd)->cx_mtx); \ 95 } while (0) 96#define CX_UNLOCK(_bd) do { \ 97 if (cx_mpsafenet) \ 98 mtx_unlock (&(_bd)->cx_mtx); \ 99 } while (0) 100#define CX_LOCK_ASSERT(_bd) do { \ 101 if (cx_mpsafenet) \ 102 mtx_assert (&(_bd)->cx_mtx, MA_OWNED); \ 103 } while (0) 104 105typedef struct _async_q { 106 int beg; 107 int end; 108 #define BF_SZ 14400 109 int buf[BF_SZ+1]; 110} async_q; 111 112#define AQ_GSZ(q) ((BF_SZ + (q)->end - (q)->beg)%BF_SZ) 113#define AQ_PUSH(q,c) {*((q)->buf + (q)->end) = c;\ 114 (q)->end = ((q)->end + 1)%BF_SZ;} 115#define AQ_POP(q,c) {c = *((q)->buf + (q)->beg);\ 116 (q)->beg = ((q)->beg + 1)%BF_SZ;} 117 118static void cx_identify __P((driver_t *, device_t)); 119static int cx_probe __P((device_t)); 120static int cx_attach __P((device_t)); 121static int cx_detach __P((device_t)); 122static t_open_t cx_topen; 123static t_modem_t cx_tmodem; 124static t_close_t cx_tclose; 125 126static device_method_t cx_isa_methods [] = { 127 DEVMETHOD(device_identify, cx_identify), 128 DEVMETHOD(device_probe, cx_probe), 129 DEVMETHOD(device_attach, cx_attach), 130 DEVMETHOD(device_detach, cx_detach), 131 {0, 0} 132}; 133 134typedef struct _cx_dma_mem_t { 135 unsigned long phys; 136 void *virt; 137 size_t size; 138 bus_dma_tag_t dmat; 139 bus_dmamap_t mapp; 140} cx_dma_mem_t; 141 142typedef struct _drv_t { 143 char name [8]; 144 cx_chan_t *chan; 145 cx_board_t *board; 146 cx_dma_mem_t dmamem; 147 struct tty *tty; 148 struct callout dcd_timeout_handle; 149 unsigned callout; 150 unsigned lock; 151 int open_dev; 152 int cd; 153 int running; 154#ifdef NETGRAPH 155 char nodename [NG_NODELEN+1]; 156 hook_p hook; 157 hook_p debug_hook; 158 node_p node; 159 struct ifqueue lo_queue; 160 struct ifqueue hi_queue; 161 short timeout; 162 struct callout timeout_handle; 163#else 164 struct ifqueue queue; 165 struct ifnet *ifp; 166#endif 167 struct cdev *devt; 168 async_q aqueue; 169#define CX_READ 1 170#define CX_WRITE 2 171 int intr_action; 172 short atimeout; 173} drv_t; 174 175typedef struct _bdrv_t { 176 cx_board_t *board; 177 struct resource *base_res; 178 struct resource *drq_res; 179 struct resource *irq_res; 180 int base_rid; 181 int drq_rid; 182 int irq_rid; 183 void *intrhand; 184 drv_t channel [NCHAN]; 185 struct mtx cx_mtx; 186} bdrv_t; 187 188static driver_t cx_isa_driver = { 189 "cx", 190 cx_isa_methods, 191 sizeof (bdrv_t), 192}; 193 194static devclass_t cx_devclass; 195 196extern long csigma_fw_len; 197extern const char *csigma_fw_version; 198extern const char *csigma_fw_date; 199extern const char *csigma_fw_copyright; 200extern const cr_dat_tst_t csigma_fw_tvec[]; 201extern const u_char csigma_fw_data[]; 202static void cx_oproc (struct tty *tp); 203static int cx_param (struct tty *tp, struct termios *t); 204static void cx_stop (struct tty *tp, int flag); 205static void cx_receive (cx_chan_t *c, char *data, int len); 206static void cx_transmit (cx_chan_t *c, void *attachment, int len); 207static void cx_error (cx_chan_t *c, int data); 208static void cx_modem (cx_chan_t *c); 209static void cx_up (drv_t *d); 210static void cx_start (drv_t *d); 211static void cx_softintr (void *); 212static void *cx_fast_ih; 213static void cx_down (drv_t *d); 214static void cx_watchdog (drv_t *d); 215static void cx_carrier (void *arg); 216 217#ifdef NETGRAPH 218extern struct ng_type typestruct; 219#else 220static void cx_ifstart (struct ifnet *ifp); 221static void cx_tlf (struct sppp *sp); 222static void cx_tls (struct sppp *sp); 223static void cx_ifwatchdog (struct ifnet *ifp); 224static int cx_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data); 225static void cx_initialize (void *softc); 226#endif 227 228static cx_board_t *adapter [NCX]; 229static drv_t *channel [NCX*NCHAN]; 230static struct callout led_timo [NCX]; 231static struct callout timeout_handle; 232 233static int cx_open (struct cdev *dev, int flag, int mode, struct thread *td); 234static int cx_close (struct cdev *dev, int flag, int mode, struct thread *td); 235static int cx_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td); 236static struct cdevsw cx_cdevsw = { 237 .d_version = D_VERSION, 238 .d_open = cx_open, 239 .d_close = cx_close, 240 .d_ioctl = cx_ioctl, 241 .d_name = "cx", 242 .d_flags = D_TTY | D_NEEDGIANT, 243}; 244 245static int MY_SOFT_INTR; 246 247/* 248 * Print the mbuf chain, for debug purposes only. 249 */ 250static void printmbuf (struct mbuf *m) 251{ 252 printf ("mbuf:"); 253 for (; m; m=m->m_next) { 254 if (m->m_flags & M_PKTHDR) 255 printf (" HDR %d:", m->m_pkthdr.len); 256 if (m->m_flags & M_EXT) 257 printf (" EXT:"); 258 printf (" %d", m->m_len); 259 } 260 printf ("\n"); 261} 262 263/* 264 * Make an mbuf from data. 265 */ 266static struct mbuf *makembuf (void *buf, u_int len) 267{ 268 struct mbuf *m, *o, *p; 269 270 MGETHDR (m, M_DONTWAIT, MT_DATA); 271 272 if (! m) 273 return 0; 274 275 if (len >= MINCLSIZE) 276 MCLGET (m, M_DONTWAIT); 277 278 m->m_pkthdr.len = len; 279 m->m_len = 0; 280 281 p = m; 282 while (len) { 283 u_int n = M_TRAILINGSPACE (p); 284 if (n > len) 285 n = len; 286 if (! n) { 287 /* Allocate new mbuf. */ 288 o = p; 289 MGET (p, M_DONTWAIT, MT_DATA); 290 if (! p) { 291 m_freem (m); 292 return 0; 293 } 294 if (len >= MINCLSIZE) 295 MCLGET (p, M_DONTWAIT); 296 p->m_len = 0; 297 o->m_next = p; 298 299 n = M_TRAILINGSPACE (p); 300 if (n > len) 301 n = len; 302 } 303 bcopy (buf, mtod (p, caddr_t) + p->m_len, n); 304 305 p->m_len += n; 306 buf = n + (char*) buf; 307 len -= n; 308 } 309 return m; 310} 311 312/* 313 * Recover after lost transmit interrupts. 314 */ 315static void cx_timeout (void *arg) 316{ 317 drv_t *d; 318 int s, i, k; 319 320 for (i = 0; i < NCX; i++) { 321 if (adapter[i] == NULL) 322 continue; 323 for (k = 0; k < NCHAN; ++k) { 324 d = channel[i * NCHAN + k]; 325 if (! d) 326 continue; 327 s = splhigh (); 328 CX_LOCK ((bdrv_t *)d->board->sys); 329 if (d->atimeout == 1 && d->tty && d->tty->t_state & TS_BUSY) { 330 d->tty->t_state &= ~TS_BUSY; 331 if (d->tty->t_dev) { 332 d->intr_action |= CX_WRITE; 333 MY_SOFT_INTR = 1; 334 swi_sched (cx_fast_ih, 0); 335 } 336 CX_DEBUG (d, ("cx_timeout\n")); 337 } 338 if (d->atimeout) 339 d->atimeout--; 340 CX_UNLOCK ((bdrv_t *)d->board->sys); 341 splx (s); 342 } 343 } 344 callout_reset (&timeout_handle, hz*5, cx_timeout, 0); 345} 346 347static void cx_led_off (void *arg) 348{ 349 cx_board_t *b = arg; 350 bdrv_t *bd = b->sys; 351 int s; 352 353 s = splhigh (); 354 CX_LOCK (bd); 355 cx_led (b, 0); 356 CX_UNLOCK (bd); 357 splx (s); 358} 359 360/* 361 * Activate interupt handler from DDK. 362 */ 363static void cx_intr (void *arg) 364{ 365 bdrv_t *bd = arg; 366 cx_board_t *b = bd->board; 367#ifndef NETGRAPH 368 int i; 369#endif 370 int s = splhigh (); 371 372 CX_LOCK (bd); 373 /* Turn LED on. */ 374 cx_led (b, 1); 375 376 cx_int_handler (b); 377 378 /* Turn LED off 50 msec later. */ 379 callout_reset (&led_timo[b->num], hz/20, cx_led_off, b); 380 CX_UNLOCK (bd); 381 splx (s); 382 383#ifndef NETGRAPH 384 /* Pass packets in a lock-free state */ 385 for (i = 0; i < NCHAN && b->chan[i].type; i++) { 386 drv_t *d = b->chan[i].sys; 387 struct mbuf *m; 388 if (!d || !d->running) 389 continue; 390 while (_IF_QLEN(&d->queue)) { 391 IF_DEQUEUE (&d->queue,m); 392 if (!m) 393 continue; 394 sppp_input (d->ifp, m); 395 } 396 } 397#endif 398} 399 400static int probe_irq (cx_board_t *b, int irq) 401{ 402 int mask, busy, cnt; 403 404 /* Clear pending irq, if any. */ 405 cx_probe_irq (b, -irq); 406 DELAY (100); 407 for (cnt=0; cnt<5; ++cnt) { 408 /* Get the mask of pending irqs, assuming they are busy. 409 * Activate the adapter on given irq. */ 410 busy = cx_probe_irq (b, irq); 411 DELAY (100); 412 413 /* Get the mask of active irqs. 414 * Deactivate our irq. */ 415 mask = cx_probe_irq (b, -irq); 416 DELAY (100); 417 if ((mask & ~busy) == 1 << irq) { 418 cx_probe_irq (b, 0); 419 /* printf ("cx%d: irq %d ok, mask=0x%04x, busy=0x%04x\n", 420 b->num, irq, mask, busy); */ 421 return 1; 422 } 423 } 424 /* printf ("cx%d: irq %d not functional, mask=0x%04x, busy=0x%04x\n", 425 b->num, irq, mask, busy); */ 426 cx_probe_irq (b, 0); 427 return 0; 428} 429 430static short porttab [] = { 431 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 432 0x300, 0x320, 0x340, 0x360, 0x380, 0x3a0, 0x3c0, 0x3e0, 0 433}; 434static char dmatab [] = { 7, 6, 5, 0 }; 435static char irqtab [] = { 5, 10, 11, 7, 3, 15, 12, 0 }; 436 437static int cx_is_free_res (device_t dev, int rid, int type, u_long start, 438 u_long end, u_long count) 439{ 440 struct resource *res; 441 442 if (!(res = bus_alloc_resource (dev, type, &rid, start, end, count, 443 RF_ALLOCATED))) 444 return 0; 445 446 bus_release_resource (dev, type, rid, res); 447 448 return 1; 449} 450 451static void cx_identify (driver_t *driver, device_t dev) 452{ 453 u_long iobase, rescount; 454 int devcount; 455 device_t *devices; 456 device_t child; 457 devclass_t my_devclass; 458 int i, k; 459 460 if ((my_devclass = devclass_find ("cx")) == NULL) 461 return; 462 463 devclass_get_devices (my_devclass, &devices, &devcount); 464 465 if (devcount == 0) { 466 /* We should find all devices by our self. We could alter other 467 * devices, but we don't have a choise 468 */ 469 for (i = 0; (iobase = porttab [i]) != 0; i++) { 470 if (!cx_is_free_res (dev, 0, SYS_RES_IOPORT, 471 iobase, iobase + NPORT, NPORT)) 472 continue; 473 if (cx_probe_board (iobase, -1, -1) == 0) 474 continue; 475 476 devcount++; 477 478 child = BUS_ADD_CHILD (dev, ISA_ORDER_SPECULATIVE, "cx", 479 -1); 480 481 if (child == NULL) 482 return; 483 484 device_set_desc_copy (child, "Cronyx Sigma"); 485 device_set_driver (child, driver); 486 bus_set_resource (child, SYS_RES_IOPORT, 0, 487 iobase, NPORT); 488 489 if (devcount >= NCX) 490 break; 491 } 492 } else { 493 static short porttab [] = { 494 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 495 0x300, 0x320, 0x340, 0x360, 0x380, 0x3a0, 0x3c0, 0x3e0, 0 496 }; 497 /* Lets check user choise. 498 */ 499 for (k = 0; k < devcount; k++) { 500 if (bus_get_resource (devices[k], SYS_RES_IOPORT, 0, 501 &iobase, &rescount) != 0) 502 continue; 503 504 for (i = 0; porttab [i] != 0; i++) { 505 if (porttab [i] != iobase) 506 continue; 507 if (!cx_is_free_res (devices[k], 0, SYS_RES_IOPORT, 508 iobase, iobase + NPORT, NPORT)) 509 continue; 510 if (cx_probe_board (iobase, -1, -1) == 0) 511 continue; 512 porttab [i] = -1; 513 device_set_desc_copy (devices[k], "Cronyx Sigma"); 514 break; 515 } 516 517 if (porttab [i] == 0) { 518 device_delete_child ( 519 device_get_parent (devices[k]), 520 devices [k]); 521 devices[k] = 0; 522 continue; 523 } 524 } 525 for (k = 0; k < devcount; k++) { 526 if (devices[k] == 0) 527 continue; 528 if (bus_get_resource (devices[k], SYS_RES_IOPORT, 0, 529 &iobase, &rescount) == 0) 530 continue; 531 for (i = 0; (iobase = porttab [i]) != 0; i++) { 532 if (porttab [i] == -1) { 533 continue; 534 } 535 if (!cx_is_free_res (devices[k], 0, SYS_RES_IOPORT, 536 iobase, iobase + NPORT, NPORT)) 537 continue; 538 if (cx_probe_board (iobase, -1, -1) == 0) 539 continue; 540 541 bus_set_resource (devices[k], SYS_RES_IOPORT, 0, 542 iobase, NPORT); 543 porttab [i] = -1; 544 device_set_desc_copy (devices[k], "Cronyx Sigma"); 545 break; 546 } 547 if (porttab [i] == 0) { 548 device_delete_child ( 549 device_get_parent (devices[k]), 550 devices [k]); 551 } 552 } 553 free (devices, M_TEMP); 554 } 555 556 return; 557} 558 559static int cx_probe (device_t dev) 560{ 561 int unit = device_get_unit (dev); 562 int i; 563 u_long iobase, rescount; 564 565 if (!device_get_desc (dev) || 566 strcmp (device_get_desc (dev), "Cronyx Sigma")) 567 return ENXIO; 568 569 if (bus_get_resource (dev, SYS_RES_IOPORT, 0, &iobase, &rescount) != 0) { 570 printf ("cx%d: Couldn't get IOPORT\n", unit); 571 return ENXIO; 572 } 573 574 if (!cx_is_free_res (dev, 0, SYS_RES_IOPORT, 575 iobase, iobase + NPORT, NPORT)) { 576 printf ("cx%d: Resource IOPORT isn't free %lx\n", unit, iobase); 577 return ENXIO; 578 } 579 580 for (i = 0; porttab [i] != 0; i++) { 581 if (porttab [i] == iobase) { 582 porttab [i] = -1; 583 break; 584 } 585 } 586 587 if (porttab [i] == 0) { 588 return ENXIO; 589 } 590 591 if (!cx_probe_board (iobase, -1, -1)) { 592 printf ("cx%d: probing for Sigma at %lx faild\n", unit, iobase); 593 return ENXIO; 594 } 595 596 return 0; 597} 598 599static void 600cx_bus_dmamap_addr (void *arg, bus_dma_segment_t *segs, int nseg, int error) 601{ 602 unsigned long *addr; 603 604 if (error) 605 return; 606 607 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg)); 608 addr = arg; 609 *addr = segs->ds_addr; 610} 611 612static int 613cx_bus_dma_mem_alloc (int bnum, int cnum, cx_dma_mem_t *dmem) 614{ 615 int error; 616 617 error = bus_dma_tag_create (NULL, 16, 0, BUS_SPACE_MAXADDR_24BIT, 618 BUS_SPACE_MAXADDR, NULL, NULL, dmem->size, 1, 619 dmem->size, 0, NULL, NULL, &dmem->dmat); 620 if (error) { 621 if (cnum >= 0) printf ("cx%d-%d: ", bnum, cnum); 622 else printf ("cx%d: ", bnum); 623 printf ("couldn't allocate tag for dma memory\n"); 624 return 0; 625 } 626 error = bus_dmamem_alloc (dmem->dmat, (void **)&dmem->virt, 627 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &dmem->mapp); 628 if (error) { 629 if (cnum >= 0) printf ("cx%d-%d: ", bnum, cnum); 630 else printf ("cx%d: ", bnum); 631 printf ("couldn't allocate mem for dma memory\n"); 632 bus_dma_tag_destroy (dmem->dmat); 633 return 0; 634 } 635 error = bus_dmamap_load (dmem->dmat, dmem->mapp, dmem->virt, 636 dmem->size, cx_bus_dmamap_addr, &dmem->phys, 0); 637 if (error) { 638 if (cnum >= 0) printf ("cx%d-%d: ", bnum, cnum); 639 else printf ("cx%d: ", bnum); 640 printf ("couldn't load mem map for dma memory\n"); 641 bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp); 642 bus_dma_tag_destroy (dmem->dmat); 643 return 0; 644 } 645 return 1; 646} 647 648static void 649cx_bus_dma_mem_free (cx_dma_mem_t *dmem) 650{ 651 bus_dmamap_unload (dmem->dmat, dmem->mapp); 652 bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp); 653 bus_dma_tag_destroy (dmem->dmat); 654} 655 656/* 657 * The adapter is present, initialize the driver structures. 658 */ 659static int cx_attach (device_t dev) 660{ 661 bdrv_t *bd = device_get_softc (dev); 662 u_long iobase, drq, irq, rescount; 663 int unit = device_get_unit (dev); 664 char *cx_ln = CX_LOCK_NAME; 665 cx_board_t *b; 666 cx_chan_t *c; 667 drv_t *d; 668 int i; 669 int s; 670 671 KASSERT ((bd != NULL), ("cx%d: NULL device softc\n", unit)); 672 673 bus_get_resource (dev, SYS_RES_IOPORT, 0, &iobase, &rescount); 674 bd->base_rid = 0; 675 bd->base_res = bus_alloc_resource (dev, SYS_RES_IOPORT, &bd->base_rid, 676 iobase, iobase + NPORT, NPORT, RF_ACTIVE); 677 if (! bd->base_res) { 678 printf ("cx%d: cannot allocate base address\n", unit); 679 return ENXIO; 680 } 681 682 if (bus_get_resource (dev, SYS_RES_DRQ, 0, &drq, &rescount) != 0) { 683 for (i = 0; (drq = dmatab [i]) != 0; i++) { 684 if (!cx_is_free_res (dev, 0, SYS_RES_DRQ, 685 drq, drq + 1, 1)) 686 continue; 687 bus_set_resource (dev, SYS_RES_DRQ, 0, drq, 1); 688 break; 689 } 690 691 if (dmatab[i] == 0) { 692 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, 693 bd->base_res); 694 printf ("cx%d: Couldn't get DRQ\n", unit); 695 return ENXIO; 696 } 697 } 698 699 bd->drq_rid = 0; 700 bd->drq_res = bus_alloc_resource (dev, SYS_RES_DRQ, &bd->drq_rid, 701 drq, drq + 1, 1, RF_ACTIVE); 702 if (! bd->drq_res) { 703 printf ("cx%d: cannot allocate drq\n", unit); 704 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, 705 bd->base_res); 706 return ENXIO; 707 } 708 709 if (bus_get_resource (dev, SYS_RES_IRQ, 0, &irq, &rescount) != 0) { 710 for (i = 0; (irq = irqtab [i]) != 0; i++) { 711 if (!cx_is_free_res (dev, 0, SYS_RES_IRQ, 712 irq, irq + 1, 1)) 713 continue; 714 bus_set_resource (dev, SYS_RES_IRQ, 0, irq, 1); 715 break; 716 } 717 718 if (irqtab[i] == 0) { 719 bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid, 720 bd->drq_res); 721 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, 722 bd->base_res); 723 printf ("cx%d: Couldn't get IRQ\n", unit); 724 return ENXIO; 725 } 726 } 727 728 bd->irq_rid = 0; 729 bd->irq_res = bus_alloc_resource (dev, SYS_RES_IRQ, &bd->irq_rid, 730 irq, irq + 1, 1, RF_ACTIVE); 731 if (! bd->irq_res) { 732 printf ("cx%d: Couldn't allocate irq\n", unit); 733 bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid, 734 bd->drq_res); 735 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, 736 bd->base_res); 737 return ENXIO; 738 } 739 740 b = malloc (sizeof (cx_board_t), M_DEVBUF, M_WAITOK); 741 if (!b) { 742 printf ("cx:%d: Couldn't allocate memory\n", unit); 743 return (ENXIO); 744 } 745 adapter[unit] = b; 746 bzero (b, sizeof(cx_board_t)); 747 748 if (! cx_open_board (b, unit, iobase, irq, drq)) { 749 printf ("cx%d: error loading firmware\n", unit); 750 free (b, M_DEVBUF); 751 bus_release_resource (dev, SYS_RES_IRQ, bd->irq_rid, 752 bd->irq_res); 753 bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid, 754 bd->drq_res); 755 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, 756 bd->base_res); 757 return ENXIO; 758 } 759 760 bd->board = b; 761 762 cx_ln[2] = '0' + unit; 763 mtx_init (&bd->cx_mtx, cx_ln, MTX_NETWORK_LOCK, MTX_DEF|MTX_RECURSE); 764 if (! probe_irq (b, irq)) { 765 printf ("cx%d: irq %ld not functional\n", unit, irq); 766 bd->board = 0; 767 adapter [unit] = 0; 768 mtx_destroy (&bd->cx_mtx); 769 free (b, M_DEVBUF); 770 bus_release_resource (dev, SYS_RES_IRQ, bd->irq_rid, 771 bd->irq_res); 772 bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid, 773 bd->drq_res); 774 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, 775 bd->base_res); 776 return ENXIO; 777 } 778 b->sys = bd; 779 callout_init (&led_timo[b->num], cx_mpsafenet ? CALLOUT_MPSAFE : 0); 780 s = splhigh (); 781 if (bus_setup_intr (dev, bd->irq_res, 782 INTR_TYPE_NET|(cx_mpsafenet?INTR_MPSAFE:0), 783 NULL, cx_intr, bd, &bd->intrhand)) { 784 printf ("cx%d: Can't setup irq %ld\n", unit, irq); 785 bd->board = 0; 786 b->sys = 0; 787 adapter [unit] = 0; 788 mtx_destroy (&bd->cx_mtx); 789 free (b, M_DEVBUF); 790 bus_release_resource (dev, SYS_RES_IRQ, bd->irq_rid, 791 bd->irq_res); 792 bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid, 793 bd->drq_res); 794 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, 795 bd->base_res); 796 splx (s); 797 return ENXIO; 798 } 799 800 CX_LOCK (bd); 801 cx_init (b, b->num, b->port, irq, drq); 802 cx_setup_board (b, 0, 0, 0); 803 CX_UNLOCK (bd); 804 805 printf ("cx%d: <Cronyx-Sigma-%s>\n", b->num, b->name); 806 807 for (c=b->chan; c<b->chan+NCHAN; ++c) { 808 if (c->type == T_NONE) 809 continue; 810 d = &bd->channel[c->num]; 811 d->dmamem.size = sizeof(cx_buf_t); 812 if (! cx_bus_dma_mem_alloc (unit, c->num, &d->dmamem)) 813 continue; 814 d->board = b; 815 d->chan = c; 816 d->open_dev = 0; 817 c->sys = d; 818 channel [b->num*NCHAN + c->num] = d; 819 sprintf (d->name, "cx%d.%d", b->num, c->num); 820 821 switch (c->type) { 822 case T_SYNC_RS232: 823 case T_SYNC_V35: 824 case T_SYNC_RS449: 825 case T_UNIV: 826 case T_UNIV_RS232: 827 case T_UNIV_RS449: 828 case T_UNIV_V35: 829#ifdef NETGRAPH 830 if (ng_make_node_common (&typestruct, &d->node) != 0) { 831 printf ("%s: cannot make common node\n", d->name); 832 channel [b->num*NCHAN + c->num] = 0; 833 c->sys = 0; 834 cx_bus_dma_mem_free (&d->dmamem); 835 continue; 836 } 837 NG_NODE_SET_PRIVATE (d->node, d); 838 sprintf (d->nodename, "%s%d", NG_CX_NODE_TYPE, 839 c->board->num*NCHAN + c->num); 840 if (ng_name_node (d->node, d->nodename)) { 841 printf ("%s: cannot name node\n", d->nodename); 842 NG_NODE_UNREF (d->node); 843 channel [b->num*NCHAN + c->num] = 0; 844 c->sys = 0; 845 cx_bus_dma_mem_free (&d->dmamem); 846 continue; 847 } 848 d->lo_queue.ifq_maxlen = IFQ_MAXLEN; 849 d->hi_queue.ifq_maxlen = IFQ_MAXLEN; 850 mtx_init (&d->lo_queue.ifq_mtx, "cx_queue_lo", NULL, MTX_DEF); 851 mtx_init (&d->hi_queue.ifq_mtx, "cx_queue_hi", NULL, MTX_DEF); 852 callout_init (&d->timeout_handle, 853 cx_mpsafenet ? CALLOUT_MPSAFE : 0); 854#else /*NETGRAPH*/ 855 d->ifp = if_alloc(IFT_PPP); 856 if (d->ifp == NULL) { 857 printf ("%s: cannot if_alloc() common interface\n", 858 d->name); 859 channel [b->num*NCHAN + c->num] = 0; 860 c->sys = 0; 861 cx_bus_dma_mem_free (&d->dmamem); 862 continue; 863 } 864 d->ifp->if_softc = d; 865 if_initname (d->ifp, "cx", b->num * NCHAN + c->num); 866 d->ifp->if_mtu = PP_MTU; 867 d->ifp->if_flags = IFF_POINTOPOINT | IFF_MULTICAST; 868 if (!cx_mpsafenet) 869 d->ifp->if_flags |= IFF_NEEDSGIANT; 870 d->ifp->if_ioctl = cx_sioctl; 871 d->ifp->if_start = cx_ifstart; 872 d->ifp->if_watchdog = cx_ifwatchdog; 873 d->ifp->if_init = cx_initialize; 874 d->queue.ifq_maxlen = 2; 875 mtx_init (&d->queue.ifq_mtx, "cx_queue", NULL, MTX_DEF); 876 sppp_attach (d->ifp); 877 if_attach (d->ifp); 878 IFP2SP(d->ifp)->pp_tlf = cx_tlf; 879 IFP2SP(d->ifp)->pp_tls = cx_tls; 880 /* If BPF is in the kernel, call the attach for it. 881 * Size of PPP header is 4 bytes. */ 882 bpfattach (d->ifp, DLT_PPP, 4); 883#endif /*NETGRAPH*/ 884 } 885 d->tty = ttyalloc (); 886 d->tty->t_open = cx_topen; 887 d->tty->t_close = cx_tclose; 888 d->tty->t_param = cx_param; 889 d->tty->t_stop = cx_stop; 890 d->tty->t_modem = cx_tmodem; 891 d->tty->t_oproc = cx_oproc; 892 d->tty->t_sc = d; 893 CX_LOCK (bd); 894 cx_start_chan (c, d->dmamem.virt, d->dmamem.phys); 895 cx_register_receive (c, &cx_receive); 896 cx_register_transmit (c, &cx_transmit); 897 cx_register_error (c, &cx_error); 898 cx_register_modem (c, &cx_modem); 899 CX_UNLOCK (bd); 900 901 ttycreate(d->tty, TS_CALLOUT, "x%r%r", b->num, c->num); 902 d->devt = make_dev (&cx_cdevsw, b->num*NCHAN + c->num + 64, UID_ROOT, GID_WHEEL, 0600, "cx%d", b->num*NCHAN + c->num); 903 d->devt->si_drv1 = d; 904 callout_init (&d->dcd_timeout_handle, 905 cx_mpsafenet ? CALLOUT_MPSAFE : 0); 906 } 907 splx (s); 908 909 return 0; 910} 911 912static int cx_detach (device_t dev) 913{ 914 bdrv_t *bd = device_get_softc (dev); 915 cx_board_t *b = bd->board; 916 cx_chan_t *c; 917 int s; 918 919 KASSERT (mtx_initialized (&bd->cx_mtx), ("cx mutex not initialized")); 920 921 s = splhigh (); 922 CX_LOCK (bd); 923 /* Check if the device is busy (open). */ 924 for (c = b->chan; c < b->chan + NCHAN; ++c) { 925 drv_t *d = (drv_t*) c->sys; 926 927 if (!d || d->chan->type == T_NONE) 928 continue; 929 if (d->lock) { 930 CX_UNLOCK (bd); 931 splx (s); 932 return EBUSY; 933 } 934 if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) && 935 (d->open_dev|0x2)) { 936 CX_UNLOCK (bd); 937 splx (s); 938 return EBUSY; 939 } 940 if (d->running) { 941 CX_UNLOCK (bd); 942 splx (s); 943 return EBUSY; 944 } 945 } 946 947 /* Deactivate the timeout routine. And soft interrupt*/ 948 callout_stop (&led_timo[b->num]); 949 950 for (c = b->chan; c < b->chan + NCHAN; ++c) { 951 drv_t *d = c->sys; 952 953 if (!d || d->chan->type == T_NONE) 954 continue; 955 956 callout_stop (&d->dcd_timeout_handle); 957 } 958 CX_UNLOCK (bd); 959 bus_teardown_intr (dev, bd->irq_res, bd->intrhand); 960 bus_release_resource (dev, SYS_RES_IRQ, bd->irq_rid, bd->irq_res); 961 962 bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid, bd->drq_res); 963 964 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, bd->base_res); 965 966 CX_LOCK (bd); 967 cx_close_board (b); 968 969 /* Detach the interfaces, free buffer memory. */ 970 for (c = b->chan; c < b->chan + NCHAN; ++c) { 971 drv_t *d = (drv_t*) c->sys; 972 973 if (!d || d->chan->type == T_NONE) 974 continue; 975 976 if (d->tty) { 977 ttyfree (d->tty); 978 d->tty = NULL; 979 } 980 981#ifdef NETGRAPH 982 if (d->node) { 983 ng_rmnode_self (d->node); 984 NG_NODE_UNREF (d->node); 985 d->node = NULL; 986 } 987 mtx_destroy (&d->lo_queue.ifq_mtx); 988 mtx_destroy (&d->hi_queue.ifq_mtx); 989#else 990 /* Detach from the packet filter list of interfaces. */ 991 bpfdetach (d->ifp); 992 /* Detach from the sync PPP list. */ 993 sppp_detach (d->ifp); 994 995 if_detach (d->ifp); 996 if_free(d->ifp); 997 /* XXXRIK: check interconnection with irq handler */ 998 IF_DRAIN (&d->queue); 999 mtx_destroy (&d->queue.ifq_mtx); 1000#endif 1001 destroy_dev (d->devt); 1002 } 1003 1004 cx_led_off (b); 1005 CX_UNLOCK (bd); 1006 callout_drain (&led_timo[b->num]); 1007 for (c = b->chan; c < b->chan + NCHAN; ++c) { 1008 drv_t *d = c->sys; 1009 1010 if (!d || d->chan->type == T_NONE) 1011 continue; 1012 1013 callout_drain (&d->dcd_timeout_handle); 1014 } 1015 splx (s); 1016 1017 s = splhigh (); 1018 for (c = b->chan; c < b->chan + NCHAN; ++c) { 1019 drv_t *d = (drv_t*) c->sys; 1020 1021 if (!d || d->chan->type == T_NONE) 1022 continue; 1023 1024 /* Deallocate buffers. */ 1025 cx_bus_dma_mem_free (&d->dmamem); 1026 } 1027 bd->board = 0; 1028 adapter [b->num] = 0; 1029 free (b, M_DEVBUF); 1030 splx (s); 1031 1032 mtx_destroy (&bd->cx_mtx); 1033 1034 return 0; 1035} 1036 1037#ifndef NETGRAPH 1038static void cx_ifstart (struct ifnet *ifp) 1039{ 1040 drv_t *d = ifp->if_softc; 1041 bdrv_t *bd = d->board->sys; 1042 1043 CX_LOCK (bd); 1044 cx_start (d); 1045 CX_UNLOCK (bd); 1046} 1047 1048static void cx_ifwatchdog (struct ifnet *ifp) 1049{ 1050 drv_t *d = ifp->if_softc; 1051 1052 cx_watchdog (d); 1053} 1054 1055static void cx_tlf (struct sppp *sp) 1056{ 1057 drv_t *d = SP2IFP(sp)->if_softc; 1058 1059 CX_DEBUG (d, ("cx_tlf\n")); 1060/* cx_set_dtr (d->chan, 0);*/ 1061/* cx_set_rts (d->chan, 0);*/ 1062 if (!(IFP2SP(d->ifp)->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO)) 1063 sp->pp_down (sp); 1064} 1065 1066static void cx_tls (struct sppp *sp) 1067{ 1068 drv_t *d = SP2IFP(sp)->if_softc; 1069 1070 CX_DEBUG (d, ("cx_tls\n")); 1071 if (!(IFP2SP(d->ifp)->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO)) 1072 sp->pp_up (sp); 1073} 1074 1075/* 1076 * Initialization of interface. 1077 * It seems to be never called by upper level. 1078 */ 1079static void cx_initialize (void *softc) 1080{ 1081 drv_t *d = softc; 1082 1083 CX_DEBUG (d, ("cx_initialize\n")); 1084} 1085 1086/* 1087 * Process an ioctl request. 1088 */ 1089static int cx_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data) 1090{ 1091 drv_t *d = ifp->if_softc; 1092 bdrv_t *bd = d->board->sys; 1093 int error, s, was_up, should_be_up; 1094 1095 /* No socket ioctls while the channel is in async mode. */ 1096 if (d->chan->type == T_NONE || d->chan->mode == M_ASYNC) 1097 return EBUSY; 1098 1099 /* Socket ioctls on slave subchannels are not allowed. */ 1100 was_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0; 1101 error = sppp_ioctl (ifp, cmd, data); 1102 if (error) 1103 return error; 1104 1105 if (! (ifp->if_flags & IFF_DEBUG)) 1106 d->chan->debug = 0; 1107 else if (! d->chan->debug) 1108 d->chan->debug = 1; 1109 1110 switch (cmd) { 1111 default: CX_DEBUG2 (d, ("ioctl 0x%lx\n", cmd)); return 0; 1112 case SIOCADDMULTI: CX_DEBUG2 (d, ("SIOCADDMULTI\n")); return 0; 1113 case SIOCDELMULTI: CX_DEBUG2 (d, ("SIOCDELMULTI\n")); return 0; 1114 case SIOCSIFFLAGS: CX_DEBUG2 (d, ("SIOCSIFFLAGS\n")); break; 1115 case SIOCSIFADDR: CX_DEBUG2 (d, ("SIOCSIFADDR\n")); break; 1116 } 1117 1118 /* We get here only in case of SIFFLAGS or SIFADDR. */ 1119 s = splhigh (); 1120 CX_LOCK (bd); 1121 should_be_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0; 1122 if (!was_up && should_be_up) { 1123 /* Interface goes up -- start it. */ 1124 cx_up (d); 1125 cx_start (d); 1126 } else if (was_up && !should_be_up) { 1127 /* Interface is going down -- stop it. */ 1128 /* if ((IFP2SP(d->ifp)->pp_flags & PP_FR) || (ifp->if_flags & PP_CISCO))*/ 1129 cx_down (d); 1130 } 1131 CX_UNLOCK (bd); 1132 splx (s); 1133 return 0; 1134} 1135#endif /*NETGRAPH*/ 1136 1137/* 1138 * Stop the interface. Called on splimp(). 1139 */ 1140static void cx_down (drv_t *d) 1141{ 1142 int s = splhigh (); 1143 CX_DEBUG (d, ("cx_down\n")); 1144 cx_set_dtr (d->chan, 0); 1145 cx_set_rts (d->chan, 0); 1146 d->running = 0; 1147 splx (s); 1148} 1149 1150/* 1151 * Start the interface. Called on splimp(). 1152 */ 1153static void cx_up (drv_t *d) 1154{ 1155 int s = splhigh (); 1156 CX_DEBUG (d, ("cx_up\n")); 1157 cx_set_dtr (d->chan, 1); 1158 cx_set_rts (d->chan, 1); 1159 d->running = 1; 1160 splx (s); 1161} 1162 1163/* 1164 * Start output on the (slave) interface. Get another datagram to send 1165 * off of the interface queue, and copy it to the interface 1166 * before starting the output. 1167 */ 1168static void cx_send (drv_t *d) 1169{ 1170 struct mbuf *m; 1171 u_short len; 1172 1173 CX_DEBUG2 (d, ("cx_send\n")); 1174 1175 /* No output if the interface is down. */ 1176 if (! d->running) 1177 return; 1178 1179 /* No output if the modem is off. */ 1180 if (! cx_get_dsr (d->chan) && ! cx_get_loop(d->chan)) 1181 return; 1182 1183 if (cx_buf_free (d->chan)) { 1184 /* Get the packet to send. */ 1185#ifdef NETGRAPH 1186 IF_DEQUEUE (&d->hi_queue, m); 1187 if (! m) 1188 IF_DEQUEUE (&d->lo_queue, m); 1189#else 1190 m = sppp_dequeue (d->ifp); 1191#endif 1192 if (! m) 1193 return; 1194#ifndef NETGRAPH 1195 BPF_MTAP (d->ifp, m); 1196#endif 1197 len = m_length (m, NULL); 1198 if (! m->m_next) 1199 cx_send_packet (d->chan, (u_char*)mtod (m, caddr_t), 1200 len, 0); 1201 else { 1202 u_char buf [DMABUFSZ]; 1203 m_copydata (m, 0, len, buf); 1204 cx_send_packet (d->chan, buf, len, 0); 1205 } 1206 m_freem (m); 1207 1208 /* Set up transmit timeout, 10 seconds. */ 1209#ifdef NETGRAPH 1210 d->timeout = 10; 1211#else 1212 d->ifp->if_timer = 10; 1213#endif 1214 } 1215#ifndef NETGRAPH 1216 d->ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1217#endif 1218} 1219 1220/* 1221 * Start output on the interface. 1222 * Always called on splimp(). 1223 */ 1224static void cx_start (drv_t *d) 1225{ 1226 int s = splhigh (); 1227 if (d->running) { 1228 if (! d->chan->dtr) 1229 cx_set_dtr (d->chan, 1); 1230 if (! d->chan->rts) 1231 cx_set_rts (d->chan, 1); 1232 cx_send (d); 1233 } 1234 splx (s); 1235} 1236 1237/* 1238 * Handle transmit timeouts. 1239 * Recover after lost transmit interrupts. 1240 * Always called on splimp(). 1241 */ 1242static void cx_watchdog (drv_t *d) 1243{ 1244 bdrv_t *bd = d->board->sys; 1245 1246 int s = splhigh (); 1247 CX_LOCK (bd); 1248 CX_DEBUG (d, ("device timeout\n")); 1249 if (d->running) { 1250 cx_setup_chan (d->chan); 1251 cx_start_chan (d->chan, 0, 0); 1252 cx_set_dtr (d->chan, 1); 1253 cx_set_rts (d->chan, 1); 1254 cx_start (d); 1255 } 1256 CX_UNLOCK (bd); 1257 splx (s); 1258} 1259 1260/* 1261 * Transmit callback function. 1262 */ 1263static void cx_transmit (cx_chan_t *c, void *attachment, int len) 1264{ 1265 drv_t *d = c->sys; 1266 1267 if (!d) 1268 return; 1269 1270 if (c->mode == M_ASYNC && d->tty) { 1271 d->tty->t_state &= ~(TS_BUSY | TS_FLUSH); 1272 d->atimeout = 0; 1273 if (d->tty->t_dev) { 1274 d->intr_action |= CX_WRITE; 1275 MY_SOFT_INTR = 1; 1276 swi_sched (cx_fast_ih, 0); 1277 } 1278 return; 1279 } 1280#ifdef NETGRAPH 1281 d->timeout = 0; 1282#else 1283 ++d->ifp->if_opackets; 1284 d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1285 d->ifp->if_timer = 0; 1286#endif 1287 cx_start (d); 1288} 1289 1290/* 1291 * Process the received packet. 1292 */ 1293static void cx_receive (cx_chan_t *c, char *data, int len) 1294{ 1295 drv_t *d = c->sys; 1296 struct mbuf *m; 1297 char *cc = data; 1298#ifdef NETGRAPH 1299 int error; 1300#endif 1301 1302 if (!d) 1303 return; 1304 1305 if (c->mode == M_ASYNC && d->tty) { 1306 if (d->tty->t_state & TS_ISOPEN) { 1307 async_q *q = &d->aqueue; 1308 int size = BF_SZ - 1 - AQ_GSZ (q); 1309 1310 if (len <= 0 && !size) 1311 return; 1312 1313 if (len > size) { 1314 c->ierrs++; 1315 cx_error (c, CX_OVERRUN); 1316 len = size - 1; 1317 } 1318 1319 while (len--) { 1320 AQ_PUSH (q, *(unsigned char *)cc); 1321 cc++; 1322 } 1323 1324 d->intr_action |= CX_READ; 1325 MY_SOFT_INTR = 1; 1326 swi_sched (cx_fast_ih, 0); 1327 } 1328 return; 1329 } 1330 if (! d->running) 1331 return; 1332 1333 m = makembuf (data, len); 1334 if (! m) { 1335 CX_DEBUG (d, ("no memory for packet\n")); 1336#ifndef NETGRAPH 1337 ++d->ifp->if_iqdrops; 1338#endif 1339 return; 1340 } 1341 if (c->debug > 1) 1342 printmbuf (m); 1343#ifdef NETGRAPH 1344 m->m_pkthdr.rcvif = 0; 1345 NG_SEND_DATA_ONLY (error, d->hook, m); 1346#else 1347 ++d->ifp->if_ipackets; 1348 m->m_pkthdr.rcvif = d->ifp; 1349 /* Check if there's a BPF listener on this interface. 1350 * If so, hand off the raw packet to bpf. */ 1351 BPF_TAP (d->ifp, data, len); 1352 IF_ENQUEUE (&d->queue, m); 1353#endif 1354} 1355 1356#define CONDITION(t,tp) (!(t->c_iflag & (ICRNL | IGNCR | IMAXBEL | INLCR | ISTRIP | IXON))\ 1357 && (!(tp->t_iflag & BRKINT) || (tp->t_iflag & IGNBRK))\ 1358 && (!(tp->t_iflag & PARMRK)\ 1359 || (tp->t_iflag & (IGNPAR | IGNBRK)) == (IGNPAR | IGNBRK))\ 1360 && !(t->c_lflag & (ECHO | ICANON | IEXTEN | ISIG | PENDIN))\ 1361 && linesw[tp->t_line]->l_rint == ttyinput) 1362 1363/* 1364 * Error callback function. 1365 */ 1366static void cx_error (cx_chan_t *c, int data) 1367{ 1368 drv_t *d = c->sys; 1369 async_q *q; 1370 1371 if (!d) 1372 return; 1373 1374 q = &(d->aqueue); 1375 1376 switch (data) { 1377 case CX_FRAME: 1378 CX_DEBUG (d, ("frame error\n")); 1379 if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) 1380 && (AQ_GSZ (q) < BF_SZ - 1) 1381 && (!CONDITION((&d->tty->t_termios), (d->tty)) 1382 || !(d->tty->t_iflag & (IGNPAR | PARMRK)))) { 1383 AQ_PUSH (q, TTY_FE); 1384 d->intr_action |= CX_READ; 1385 MY_SOFT_INTR = 1; 1386 swi_sched (cx_fast_ih, 0); 1387 } 1388#ifndef NETGRAPH 1389 else 1390 ++d->ifp->if_ierrors; 1391#endif 1392 break; 1393 case CX_CRC: 1394 CX_DEBUG (d, ("crc error\n")); 1395 if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) 1396 && (AQ_GSZ (q) < BF_SZ - 1) 1397 && (!CONDITION((&d->tty->t_termios), (d->tty)) 1398 || !(d->tty->t_iflag & INPCK) 1399 || !(d->tty->t_iflag & (IGNPAR | PARMRK)))) { 1400 AQ_PUSH (q, TTY_PE); 1401 d->intr_action |= CX_READ; 1402 MY_SOFT_INTR = 1; 1403 swi_sched (cx_fast_ih, 0); 1404 } 1405#ifndef NETGRAPH 1406 else 1407 ++d->ifp->if_ierrors; 1408#endif 1409 break; 1410 case CX_OVERRUN: 1411 CX_DEBUG (d, ("overrun error\n")); 1412#ifdef TTY_OE 1413 if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) 1414 && (AQ_GSZ (q) < BF_SZ - 1) 1415 && (!CONDITION((&d->tty->t_termios), (d->tty)))) { 1416 AQ_PUSH (q, TTY_OE); 1417 d->intr_action |= CX_READ; 1418 MY_SOFT_INTR = 1; 1419 swi_sched (cx_fast_ih, 0); 1420 } 1421#endif 1422#ifndef NETGRAPH 1423 else { 1424 ++d->ifp->if_collisions; 1425 ++d->ifp->if_ierrors; 1426 } 1427#endif 1428 break; 1429 case CX_OVERFLOW: 1430 CX_DEBUG (d, ("overflow error\n")); 1431#ifndef NETGRAPH 1432 if (c->mode != M_ASYNC) 1433 ++d->ifp->if_ierrors; 1434#endif 1435 break; 1436 case CX_UNDERRUN: 1437 CX_DEBUG (d, ("underrun error\n")); 1438 if (c->mode != M_ASYNC) { 1439#ifdef NETGRAPH 1440 d->timeout = 0; 1441#else 1442 ++d->ifp->if_oerrors; 1443 d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 1444 d->ifp->if_timer = 0; 1445 cx_start (d); 1446#endif 1447 } 1448 break; 1449 case CX_BREAK: 1450 CX_DEBUG (d, ("break error\n")); 1451 if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) 1452 && (AQ_GSZ (q) < BF_SZ - 1) 1453 && (!CONDITION((&d->tty->t_termios), (d->tty)) 1454 || !(d->tty->t_iflag & (IGNBRK | BRKINT | PARMRK)))) { 1455 AQ_PUSH (q, TTY_BI); 1456 d->intr_action |= CX_READ; 1457 MY_SOFT_INTR = 1; 1458 swi_sched (cx_fast_ih, 0); 1459 } 1460#ifndef NETGRAPH 1461 else 1462 ++d->ifp->if_ierrors; 1463#endif 1464 break; 1465 default: 1466 CX_DEBUG (d, ("error #%d\n", data)); 1467 } 1468} 1469 1470static int cx_topen (struct tty *tp, struct cdev *dev) 1471{ 1472 bdrv_t *bd; 1473 drv_t *d; 1474 1475 d = tp->t_sc; 1476 CX_DEBUG2 (d, ("cx_open (serial)\n")); 1477 1478 bd = d->board->sys; 1479 1480 if (d->chan->mode != M_ASYNC) 1481 return (EBUSY); 1482 1483 d->open_dev |= 0x2; 1484 CX_LOCK (bd); 1485 cx_start_chan (d->chan, 0, 0); 1486 cx_set_dtr (d->chan, 1); 1487 cx_set_rts (d->chan, 1); 1488 d->cd = cx_get_cd (d->chan); 1489 CX_UNLOCK (bd); 1490 1491 CX_DEBUG2 (d, ("cx_open done\n")); 1492 1493 return 0; 1494} 1495 1496static void cx_tclose (struct tty *tp) 1497{ 1498 drv_t *d; 1499 bdrv_t *bd; 1500 1501 d = tp->t_sc; 1502 CX_DEBUG2 (d, ("cx_close\n")); 1503 bd = d->board->sys; 1504 CX_LOCK (bd); 1505 /* Disable receiver. 1506 * Transmitter continues sending the queued data. */ 1507 cx_enable_receive (d->chan, 0); 1508 CX_UNLOCK (bd); 1509 d->open_dev &= ~0x2; 1510} 1511 1512static int cx_tmodem (struct tty *tp, int sigon, int sigoff) 1513{ 1514 drv_t *d; 1515 bdrv_t *bd; 1516 1517 d = tp->t_sc; 1518 bd = d->board->sys; 1519 1520 CX_LOCK (bd); 1521 if (!sigon && !sigoff) { 1522 if (cx_get_dsr (d->chan)) sigon |= SER_DSR; 1523 if (cx_get_cd (d->chan)) sigon |= SER_DCD; 1524 if (cx_get_cts (d->chan)) sigon |= SER_CTS; 1525 if (d->chan->dtr) sigon |= SER_DTR; 1526 if (d->chan->rts) sigon |= SER_RTS; 1527 CX_UNLOCK (bd); 1528 return sigon; 1529 } 1530 1531 if (sigon & SER_DTR) 1532 cx_set_dtr (d->chan, 1); 1533 if (sigoff & SER_DTR) 1534 cx_set_dtr (d->chan, 0); 1535 if (sigon & SER_RTS) 1536 cx_set_rts (d->chan, 1); 1537 if (sigoff & SER_RTS) 1538 cx_set_rts (d->chan, 0); 1539 CX_UNLOCK (bd); 1540 1541 return (0); 1542} 1543 1544static int cx_open (struct cdev *dev, int flag, int mode, struct thread *td) 1545{ 1546 int unit; 1547 drv_t *d; 1548 1549 d = dev->si_drv1; 1550 unit = d->chan->num; 1551 1552 CX_DEBUG2 (d, ("cx_open unit=%d, flag=0x%x, mode=0x%x\n", 1553 unit, flag, mode)); 1554 1555 d->open_dev |= 0x1; 1556 1557 CX_DEBUG2 (d, ("cx_open done\n")); 1558 1559 return 0; 1560} 1561 1562static int cx_close (struct cdev *dev, int flag, int mode, struct thread *td) 1563{ 1564 drv_t *d; 1565 1566 d = dev->si_drv1; 1567 CX_DEBUG2 (d, ("cx_close\n")); 1568 d->open_dev &= ~0x1; 1569 return 0; 1570} 1571 1572static int cx_modem_status (drv_t *d) 1573{ 1574 bdrv_t *bd = d->board->sys; 1575 int status = 0, s = splhigh (); 1576 CX_LOCK (bd); 1577 /* Already opened by someone or network interface is up? */ 1578 if ((d->chan->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) && 1579 (d->open_dev|0x2)) || (d->chan->mode != M_ASYNC && d->running)) 1580 status = TIOCM_LE; /* always enabled while open */ 1581 1582 if (cx_get_dsr (d->chan)) status |= TIOCM_DSR; 1583 if (cx_get_cd (d->chan)) status |= TIOCM_CD; 1584 if (cx_get_cts (d->chan)) status |= TIOCM_CTS; 1585 if (d->chan->dtr) status |= TIOCM_DTR; 1586 if (d->chan->rts) status |= TIOCM_RTS; 1587 CX_UNLOCK (bd); 1588 splx (s); 1589 return status; 1590} 1591 1592static int cx_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td) 1593{ 1594 drv_t *d; 1595 bdrv_t *bd; 1596 cx_chan_t *c; 1597 struct serial_statistics *st; 1598 int error, s; 1599 char mask[16]; 1600 1601 d = dev->si_drv1; 1602 c = d->chan; 1603 1604 bd = d->board->sys; 1605 1606 switch (cmd) { 1607 case SERIAL_GETREGISTERED: 1608 CX_DEBUG2 (d, ("ioctl: getregistered\n")); 1609 bzero (mask, sizeof(mask)); 1610 for (s=0; s<NCX*NCHAN; ++s) 1611 if (channel [s]) 1612 mask [s/8] |= 1 << (s & 7); 1613 bcopy (mask, data, sizeof (mask)); 1614 return 0; 1615 1616 case SERIAL_GETPORT: 1617 CX_DEBUG2 (d, ("ioctl: getport\n")); 1618 s = splhigh (); 1619 CX_LOCK (bd); 1620 *(int *)data = cx_get_port (c); 1621 CX_UNLOCK (bd); 1622 splx (s); 1623 if (*(int *)data<0) 1624 return (EINVAL); 1625 else 1626 return 0; 1627 1628 case SERIAL_SETPORT: 1629 CX_DEBUG2 (d, ("ioctl: setproto\n")); 1630 /* Only for superuser! */ 1631 error = priv_check (td, PRIV_DRIVER); 1632 if (error) 1633 return error; 1634 1635 s = splhigh (); 1636 CX_LOCK (bd); 1637 cx_set_port (c, *(int *)data); 1638 CX_UNLOCK (bd); 1639 splx (s); 1640 return 0; 1641 1642#ifndef NETGRAPH 1643 case SERIAL_GETPROTO: 1644 CX_DEBUG2 (d, ("ioctl: getproto\n")); 1645 s = splhigh (); 1646 CX_LOCK (bd); 1647 strcpy ((char*)data, (c->mode == M_ASYNC) ? "async" : 1648 (IFP2SP(d->ifp)->pp_flags & PP_FR) ? "fr" : 1649 (d->ifp->if_flags & PP_CISCO) ? "cisco" : "ppp"); 1650 CX_UNLOCK (bd); 1651 splx (s); 1652 return 0; 1653 1654 case SERIAL_SETPROTO: 1655 CX_DEBUG2 (d, ("ioctl: setproto\n")); 1656 /* Only for superuser! */ 1657 error = priv_check (td, PRIV_DRIVER); 1658 if (error) 1659 return error; 1660 if (c->mode == M_ASYNC) 1661 return EBUSY; 1662 if (d->ifp->if_drv_flags & IFF_DRV_RUNNING) 1663 return EBUSY; 1664 if (! strcmp ("cisco", (char*)data)) { 1665 IFP2SP(d->ifp)->pp_flags &= ~(PP_FR); 1666 IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE; 1667 d->ifp->if_flags |= PP_CISCO; 1668 } else if (! strcmp ("fr", (char*)data)) { 1669 d->ifp->if_flags &= ~(PP_CISCO); 1670 IFP2SP(d->ifp)->pp_flags |= PP_FR | PP_KEEPALIVE; 1671 } else if (! strcmp ("ppp", (char*)data)) { 1672 IFP2SP(d->ifp)->pp_flags &= ~(PP_FR | PP_KEEPALIVE); 1673 d->ifp->if_flags &= ~(PP_CISCO); 1674 } else 1675 return EINVAL; 1676 return 0; 1677 1678 case SERIAL_GETKEEPALIVE: 1679 CX_DEBUG2 (d, ("ioctl: getkeepalive\n")); 1680 if ((IFP2SP(d->ifp)->pp_flags & PP_FR) || 1681 (d->ifp->if_flags & PP_CISCO) || 1682 (c->mode == M_ASYNC)) 1683 return EINVAL; 1684 s = splhigh (); 1685 CX_LOCK (bd); 1686 *(int*)data = (IFP2SP(d->ifp)->pp_flags & PP_KEEPALIVE) ? 1 : 0; 1687 CX_UNLOCK (bd); 1688 splx (s); 1689 return 0; 1690 1691 case SERIAL_SETKEEPALIVE: 1692 CX_DEBUG2 (d, ("ioctl: setkeepalive\n")); 1693 /* Only for superuser! */ 1694 error = priv_check (td, PRIV_DRIVER); 1695 if (error) 1696 return error; 1697 if ((IFP2SP(d->ifp)->pp_flags & PP_FR) || 1698 (d->ifp->if_flags & PP_CISCO)) 1699 return EINVAL; 1700 s = splhigh (); 1701 CX_LOCK (bd); 1702 if (*(int*)data) 1703 IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE; 1704 else 1705 IFP2SP(d->ifp)->pp_flags &= ~PP_KEEPALIVE; 1706 CX_UNLOCK (bd); 1707 splx (s); 1708 return 0; 1709#endif /*NETGRAPH*/ 1710 1711 case SERIAL_GETMODE: 1712 CX_DEBUG2 (d, ("ioctl: getmode\n")); 1713 s = splhigh (); 1714 CX_LOCK (bd); 1715 *(int*)data = (c->mode == M_ASYNC) ? 1716 SERIAL_ASYNC : SERIAL_HDLC; 1717 CX_UNLOCK (bd); 1718 splx (s); 1719 return 0; 1720 1721 case SERIAL_SETMODE: 1722 CX_DEBUG2 (d, ("ioctl: setmode\n")); 1723 /* Only for superuser! */ 1724 error = priv_check (td, PRIV_DRIVER); 1725 if (error) 1726 return error; 1727 1728 /* Somebody is waiting for carrier? */ 1729 if (d->lock) 1730 return EBUSY; 1731 /* /dev/ttyXX is already opened by someone? */ 1732 if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) && 1733 (d->open_dev|0x2)) 1734 return EBUSY; 1735 /* Network interface is up? 1736 * Cannot change to async mode. */ 1737 if (c->mode != M_ASYNC && d->running && 1738 (*(int*)data == SERIAL_ASYNC)) 1739 return EBUSY; 1740 1741 s = splhigh (); 1742 CX_LOCK (bd); 1743 if (c->mode == M_HDLC && *(int*)data == SERIAL_ASYNC) { 1744 cx_set_mode (c, M_ASYNC); 1745 cx_enable_receive (c, 0); 1746 cx_enable_transmit (c, 0); 1747 } else if (c->mode == M_ASYNC && *(int*)data == SERIAL_HDLC) { 1748 cx_set_mode (c, M_HDLC); 1749 cx_enable_receive (c, 1); 1750 cx_enable_transmit (c, 1); 1751 } 1752 CX_UNLOCK (bd); 1753 splx (s); 1754 return 0; 1755 1756 case SERIAL_GETSTAT: 1757 CX_DEBUG2 (d, ("ioctl: getestat\n")); 1758 st = (struct serial_statistics*) data; 1759 s = splhigh (); 1760 CX_LOCK (bd); 1761 st->rintr = c->rintr; 1762 st->tintr = c->tintr; 1763 st->mintr = c->mintr; 1764 st->ibytes = c->ibytes; 1765 st->ipkts = c->ipkts; 1766 st->ierrs = c->ierrs; 1767 st->obytes = c->obytes; 1768 st->opkts = c->opkts; 1769 st->oerrs = c->oerrs; 1770 CX_UNLOCK (bd); 1771 splx (s); 1772 return 0; 1773 1774 case SERIAL_CLRSTAT: 1775 CX_DEBUG2 (d, ("ioctl: clrstat\n")); 1776 /* Only for superuser! */ 1777 error = priv_check (td, PRIV_DRIVER); 1778 if (error) 1779 return error; 1780 s = splhigh (); 1781 CX_LOCK (bd); 1782 c->rintr = 0; 1783 c->tintr = 0; 1784 c->mintr = 0; 1785 c->ibytes = 0; 1786 c->ipkts = 0; 1787 c->ierrs = 0; 1788 c->obytes = 0; 1789 c->opkts = 0; 1790 c->oerrs = 0; 1791 CX_UNLOCK (bd); 1792 splx (s); 1793 return 0; 1794 1795 case SERIAL_GETBAUD: 1796 CX_DEBUG2 (d, ("ioctl: getbaud\n")); 1797 if (c->mode == M_ASYNC) 1798 return EINVAL; 1799 s = splhigh (); 1800 CX_LOCK (bd); 1801 *(long*)data = cx_get_baud(c); 1802 CX_UNLOCK (bd); 1803 splx (s); 1804 return 0; 1805 1806 case SERIAL_SETBAUD: 1807 CX_DEBUG2 (d, ("ioctl: setbaud\n")); 1808 /* Only for superuser! */ 1809 error = priv_check (td, PRIV_DRIVER); 1810 if (error) 1811 return error; 1812 if (c->mode == M_ASYNC) 1813 return EINVAL; 1814 s = splhigh (); 1815 CX_LOCK (bd); 1816 cx_set_baud (c, *(long*)data); 1817 CX_UNLOCK (bd); 1818 splx (s); 1819 return 0; 1820 1821 case SERIAL_GETLOOP: 1822 CX_DEBUG2 (d, ("ioctl: getloop\n")); 1823 if (c->mode == M_ASYNC) 1824 return EINVAL; 1825 s = splhigh (); 1826 CX_LOCK (bd); 1827 *(int*)data = cx_get_loop (c); 1828 CX_UNLOCK (bd); 1829 splx (s); 1830 return 0; 1831 1832 case SERIAL_SETLOOP: 1833 CX_DEBUG2 (d, ("ioctl: setloop\n")); 1834 /* Only for superuser! */ 1835 error = priv_check (td, PRIV_DRIVER); 1836 if (error) 1837 return error; 1838 if (c->mode == M_ASYNC) 1839 return EINVAL; 1840 s = splhigh (); 1841 CX_LOCK (bd); 1842 cx_set_loop (c, *(int*)data); 1843 CX_UNLOCK (bd); 1844 splx (s); 1845 return 0; 1846 1847 case SERIAL_GETDPLL: 1848 CX_DEBUG2 (d, ("ioctl: getdpll\n")); 1849 if (c->mode == M_ASYNC) 1850 return EINVAL; 1851 s = splhigh (); 1852 CX_LOCK (bd); 1853 *(int*)data = cx_get_dpll (c); 1854 CX_UNLOCK (bd); 1855 splx (s); 1856 return 0; 1857 1858 case SERIAL_SETDPLL: 1859 CX_DEBUG2 (d, ("ioctl: setdpll\n")); 1860 /* Only for superuser! */ 1861 error = priv_check (td, PRIV_DRIVER); 1862 if (error) 1863 return error; 1864 if (c->mode == M_ASYNC) 1865 return EINVAL; 1866 s = splhigh (); 1867 CX_LOCK (bd); 1868 cx_set_dpll (c, *(int*)data); 1869 CX_UNLOCK (bd); 1870 splx (s); 1871 return 0; 1872 1873 case SERIAL_GETNRZI: 1874 CX_DEBUG2 (d, ("ioctl: getnrzi\n")); 1875 if (c->mode == M_ASYNC) 1876 return EINVAL; 1877 s = splhigh (); 1878 CX_LOCK (bd); 1879 *(int*)data = cx_get_nrzi (c); 1880 CX_UNLOCK (bd); 1881 splx (s); 1882 return 0; 1883 1884 case SERIAL_SETNRZI: 1885 CX_DEBUG2 (d, ("ioctl: setnrzi\n")); 1886 /* Only for superuser! */ 1887 error = priv_check (td, PRIV_DRIVER); 1888 if (error) 1889 return error; 1890 if (c->mode == M_ASYNC) 1891 return EINVAL; 1892 s = splhigh (); 1893 CX_LOCK (bd); 1894 cx_set_nrzi (c, *(int*)data); 1895 CX_UNLOCK (bd); 1896 splx (s); 1897 return 0; 1898 1899 case SERIAL_GETDEBUG: 1900 CX_DEBUG2 (d, ("ioctl: getdebug\n")); 1901 s = splhigh (); 1902 CX_LOCK (bd); 1903 *(int*)data = c->debug; 1904 CX_UNLOCK (bd); 1905 splx (s); 1906 return 0; 1907 1908 case SERIAL_SETDEBUG: 1909 CX_DEBUG2 (d, ("ioctl: setdebug\n")); 1910 /* Only for superuser! */ 1911 error = priv_check (td, PRIV_DRIVER); 1912 if (error) 1913 return error; 1914 s = splhigh (); 1915 CX_LOCK (bd); 1916 c->debug = *(int*)data; 1917 CX_UNLOCK (bd); 1918 splx (s); 1919#ifndef NETGRAPH 1920 if (d->chan->debug) 1921 d->ifp->if_flags |= IFF_DEBUG; 1922 else 1923 d->ifp->if_flags &= (~IFF_DEBUG); 1924#endif 1925 return 0; 1926 } 1927 1928 switch (cmd) { 1929 case TIOCSDTR: /* Set DTR */ 1930 CX_DEBUG2 (d, ("ioctl: tiocsdtr\n")); 1931 s = splhigh (); 1932 CX_LOCK (bd); 1933 cx_set_dtr (c, 1); 1934 CX_UNLOCK (bd); 1935 splx (s); 1936 return 0; 1937 1938 case TIOCCDTR: /* Clear DTR */ 1939 CX_DEBUG2 (d, ("ioctl: tioccdtr\n")); 1940 s = splhigh (); 1941 CX_LOCK (bd); 1942 cx_set_dtr (c, 0); 1943 CX_UNLOCK (bd); 1944 splx (s); 1945 return 0; 1946 1947 case TIOCMSET: /* Set DTR/RTS */ 1948 CX_DEBUG2 (d, ("ioctl: tiocmset\n")); 1949 s = splhigh (); 1950 CX_LOCK (bd); 1951 cx_set_dtr (c, (*(int*)data & TIOCM_DTR) ? 1 : 0); 1952 cx_set_rts (c, (*(int*)data & TIOCM_RTS) ? 1 : 0); 1953 CX_UNLOCK (bd); 1954 splx (s); 1955 return 0; 1956 1957 case TIOCMBIS: /* Add DTR/RTS */ 1958 CX_DEBUG2 (d, ("ioctl: tiocmbis\n")); 1959 s = splhigh (); 1960 CX_LOCK (bd); 1961 if (*(int*)data & TIOCM_DTR) cx_set_dtr (c, 1); 1962 if (*(int*)data & TIOCM_RTS) cx_set_rts (c, 1); 1963 CX_UNLOCK (bd); 1964 splx (s); 1965 return 0; 1966 1967 case TIOCMBIC: /* Clear DTR/RTS */ 1968 CX_DEBUG2 (d, ("ioctl: tiocmbic\n")); 1969 s = splhigh (); 1970 CX_LOCK (bd); 1971 if (*(int*)data & TIOCM_DTR) cx_set_dtr (c, 0); 1972 if (*(int*)data & TIOCM_RTS) cx_set_rts (c, 0); 1973 CX_UNLOCK (bd); 1974 splx (s); 1975 return 0; 1976 1977 case TIOCMGET: /* Get modem status */ 1978 CX_DEBUG2 (d, ("ioctl: tiocmget\n")); 1979 *(int*)data = cx_modem_status (d); 1980 return 0; 1981 1982 } 1983 1984 CX_DEBUG2 (d, ("ioctl: 0x%lx\n", cmd)); 1985 return ENOTTY; 1986} 1987 1988void cx_softintr (void *unused) 1989{ 1990 drv_t *d; 1991 bdrv_t *bd; 1992 async_q *q; 1993 int i, s, ic, k; 1994 while (MY_SOFT_INTR) { 1995 MY_SOFT_INTR = 0; 1996 for (i=0; i<NCX*NCHAN; ++i) { 1997 d = channel [i]; 1998 if (!d || !d->chan || d->chan->type == T_NONE 1999 || d->chan->mode != M_ASYNC || !d->tty 2000 || !d->tty->t_dev) 2001 continue; 2002 bd = d->board->sys; 2003 s = splhigh (); 2004 CX_LOCK (bd); 2005 if (d->intr_action & CX_READ) { 2006 q = &(d->aqueue); 2007 if (d->tty->t_state & TS_CAN_BYPASS_L_RINT) { 2008 k = AQ_GSZ(q); 2009 if (d->tty->t_rawq.c_cc + k > 2010 d->tty->t_ihiwat 2011 && (d->tty->t_cflag & CRTS_IFLOW 2012 || d->tty->t_iflag & IXOFF) 2013 && !(d->tty->t_state & TS_TBLOCK)) 2014 ttyblock(d->tty); 2015 d->tty->t_rawcc += k; 2016 while (k>0) { 2017 k--; 2018 AQ_POP (q, ic); 2019 CX_UNLOCK (bd); 2020 splx (s); 2021 putc (ic, &d->tty->t_rawq); 2022 s = splhigh (); 2023 CX_LOCK (bd); 2024 } 2025 ttwakeup(d->tty); 2026 if (d->tty->t_state & TS_TTSTOP 2027 && (d->tty->t_iflag & IXANY 2028 || d->tty->t_cc[VSTART] == 2029 d->tty->t_cc[VSTOP])) { 2030 d->tty->t_state &= ~TS_TTSTOP; 2031 d->tty->t_lflag &= ~FLUSHO; 2032 d->intr_action |= CX_WRITE; 2033 } 2034 } else { 2035 while (q->end != q->beg) { 2036 AQ_POP (q, ic); 2037 CX_UNLOCK (bd); 2038 splx (s); 2039 ttyld_rint (d->tty, ic); 2040 s = splhigh (); 2041 CX_LOCK (bd); 2042 } 2043 } 2044 d->intr_action &= ~CX_READ; 2045 } 2046 splx (s); 2047 CX_UNLOCK (bd); 2048 2049 s = splhigh (); 2050 CX_LOCK (bd); 2051 if (d->intr_action & CX_WRITE) { 2052 if (d->tty->t_line) 2053 ttyld_start (d->tty); 2054 else 2055 cx_oproc (d->tty); 2056 d->intr_action &= ~CX_WRITE; 2057 } 2058 CX_UNLOCK (bd); 2059 splx (s); 2060 2061 } 2062 } 2063} 2064 2065/* 2066 * Fill transmitter buffer with data. 2067 */ 2068static void cx_oproc (struct tty *tp) 2069{ 2070 int s, k; 2071 drv_t *d; 2072 bdrv_t *bd; 2073 static u_char buf[DMABUFSZ]; 2074 u_char *p; 2075 u_short len = 0, sublen = 0; 2076 2077 d = tp->t_sc; 2078 bd = d->board->sys; 2079 2080 CX_DEBUG2 (d, ("cx_oproc\n")); 2081 2082 s = splhigh (); 2083 CX_LOCK (bd); 2084 2085 if (tp->t_cflag & CRTSCTS && (tp->t_state & TS_TBLOCK) && d->chan->rts) 2086 cx_set_rts (d->chan, 0); 2087 else if (tp->t_cflag & CRTSCTS && ! (tp->t_state & TS_TBLOCK) && ! d->chan->rts) 2088 cx_set_rts (d->chan, 1); 2089 2090 if (! (tp->t_state & (TS_TIMEOUT | TS_TTSTOP))) { 2091 /* Start transmitter. */ 2092 cx_enable_transmit (d->chan, 1); 2093 2094 /* Is it busy? */ 2095 if (! cx_buf_free (d->chan)) { 2096 tp->t_state |= TS_BUSY; 2097 CX_UNLOCK (bd); 2098 splx (s); 2099 return; 2100 } 2101 if (tp->t_iflag & IXOFF) { 2102 p = (buf + (DMABUFSZ/2)); 2103 sublen = q_to_b (&tp->t_outq, p, (DMABUFSZ/2)); 2104 k = sublen; 2105 while (k--) { 2106 /* Send XON/XOFF out of band. */ 2107 if (*p == tp->t_cc[VSTOP]) { 2108 cx_xflow_ctl (d->chan, 0); 2109 p++; 2110 continue; 2111 } 2112 if (*p == tp->t_cc[VSTART]) { 2113 cx_xflow_ctl (d->chan, 1); 2114 p++; 2115 continue; 2116 } 2117 buf[len] = *p; 2118 len++; 2119 p++; 2120 } 2121 } else { 2122 p = buf; 2123 len = q_to_b (&tp->t_outq, p, (DMABUFSZ/2)); 2124 } 2125 if (len) { 2126 cx_send_packet (d->chan, buf, len, 0); 2127 tp->t_state |= TS_BUSY; 2128 d->atimeout = 10; 2129 CX_DEBUG2 (d, ("out %d bytes\n", len)); 2130 } 2131 } 2132 ttwwakeup (tp); 2133 CX_UNLOCK (bd); 2134 splx (s); 2135} 2136 2137static int cx_param (struct tty *tp, struct termios *t) 2138{ 2139 drv_t *d; 2140 bdrv_t *bd; 2141 int s, bits, parity; 2142 2143 d = tp->t_sc; 2144 bd = d->board->sys; 2145 2146 s = splhigh (); 2147 CX_LOCK (bd); 2148 if (t->c_ospeed == 0) { 2149 /* Clear DTR and RTS. */ 2150 cx_set_dtr (d->chan, 0); 2151 CX_UNLOCK (bd); 2152 splx (s); 2153 CX_DEBUG2 (d, ("cx_param (hangup)\n")); 2154 return 0; 2155 } 2156 CX_DEBUG2 (d, ("cx_param\n")); 2157 2158 /* Check requested parameters. */ 2159 if (t->c_ospeed < 300 || t->c_ospeed > 256*1024) { 2160 CX_UNLOCK (bd); 2161 splx (s); 2162 return EINVAL; 2163 } 2164 if (t->c_ispeed && (t->c_ispeed < 300 || t->c_ispeed > 256*1024)) { 2165 CX_UNLOCK (bd); 2166 splx (s); 2167 return EINVAL; 2168 } 2169 2170 /* And copy them to tty and channel structures. */ 2171 tp->t_ispeed = t->c_ispeed = tp->t_ospeed = t->c_ospeed; 2172 tp->t_cflag = t->c_cflag; 2173 2174 /* Set character length and parity mode. */ 2175 switch (t->c_cflag & CSIZE) { 2176 default: 2177 case CS8: bits = 8; break; 2178 case CS7: bits = 7; break; 2179 case CS6: bits = 6; break; 2180 case CS5: bits = 5; break; 2181 } 2182 2183 parity = ((t->c_cflag & PARENB) ? 1 : 0) * 2184 (1 + ((t->c_cflag & PARODD) ? 0 : 1)); 2185 2186 /* Set current channel number. */ 2187 if (! d->chan->dtr) 2188 cx_set_dtr (d->chan, 1); 2189 2190 ttyldoptim (tp); 2191 cx_set_async_param (d->chan, t->c_ospeed, bits, parity, (t->c_cflag & CSTOPB), 2192 !(t->c_cflag & PARENB), (t->c_cflag & CRTSCTS), 2193 (t->c_iflag & IXON), (t->c_iflag & IXANY), 2194 t->c_cc[VSTART], t->c_cc[VSTOP]); 2195 CX_UNLOCK (bd); 2196 splx (s); 2197 return 0; 2198} 2199 2200/* 2201 * Stop output on a line 2202 */ 2203static void cx_stop (struct tty *tp, int flag) 2204{ 2205 drv_t *d; 2206 bdrv_t *bd; 2207 int s; 2208 2209 d = tp->t_sc; 2210 bd = d->board->sys; 2211 2212 s = splhigh (); 2213 CX_LOCK (bd); 2214 if (tp->t_state & TS_BUSY) { 2215 /* Stop transmitter */ 2216 CX_DEBUG2 (d, ("cx_stop\n")); 2217 cx_transmitter_ctl (d->chan, 0); 2218 } 2219 CX_UNLOCK (bd); 2220 splx (s); 2221} 2222 2223/* 2224 * Process the (delayed) carrier signal setup. 2225 */ 2226static void cx_carrier (void *arg) 2227{ 2228 drv_t *d = arg; 2229 bdrv_t *bd = d->board->sys; 2230 cx_chan_t *c = d->chan; 2231 int s, cd; 2232 2233 s = splhigh (); 2234 CX_LOCK (bd); 2235 cd = cx_get_cd (c); 2236 if (d->cd != cd) { 2237 if (cd) { 2238 CX_DEBUG (d, ("carrier on\n")); 2239 d->cd = 1; 2240 CX_UNLOCK (bd); 2241 splx (s); 2242 if (d->tty) 2243 ttyld_modem(d->tty, 1); 2244 } else { 2245 CX_DEBUG (d, ("carrier loss\n")); 2246 d->cd = 0; 2247 CX_UNLOCK (bd); 2248 splx (s); 2249 if (d->tty) 2250 ttyld_modem(d->tty, 0); 2251 } 2252 } else { 2253 CX_UNLOCK (bd); 2254 splx (s); 2255 } 2256} 2257 2258/* 2259 * Modem signal callback function. 2260 */ 2261static void cx_modem (cx_chan_t *c) 2262{ 2263 drv_t *d = c->sys; 2264 2265 if (!d || c->mode != M_ASYNC) 2266 return; 2267 /* Handle carrier detect/loss. */ 2268 /* Carrier changed - delay processing DCD for a while 2269 * to give both sides some time to initialize. */ 2270 callout_reset (&d->dcd_timeout_handle, hz/2, cx_carrier, d); 2271} 2272 2273#ifdef NETGRAPH 2274static int ng_cx_constructor (node_p node) 2275{ 2276 drv_t *d = NG_NODE_PRIVATE (node); 2277 CX_DEBUG (d, ("Constructor\n")); 2278 return EINVAL; 2279} 2280 2281static int ng_cx_newhook (node_p node, hook_p hook, const char *name) 2282{ 2283 int s; 2284 drv_t *d = NG_NODE_PRIVATE (node); 2285 bdrv_t *bd = d->board->sys; 2286 2287 if (d->chan->mode == M_ASYNC) 2288 return EINVAL; 2289 2290 /* Attach debug hook */ 2291 if (strcmp (name, NG_CX_HOOK_DEBUG) == 0) { 2292 NG_HOOK_SET_PRIVATE (hook, NULL); 2293 d->debug_hook = hook; 2294 return 0; 2295 } 2296 2297 /* Check for raw hook */ 2298 if (strcmp (name, NG_CX_HOOK_RAW) != 0) 2299 return EINVAL; 2300 2301 NG_HOOK_SET_PRIVATE (hook, d); 2302 d->hook = hook; 2303 s = splhigh (); 2304 CX_LOCK (bd); 2305 cx_up (d); 2306 CX_UNLOCK (bd); 2307 splx (s); 2308 return 0; 2309} 2310 2311static int print_modems (char *s, cx_chan_t *c, int need_header) 2312{ 2313 int status = cx_modem_status (c->sys); 2314 int length = 0; 2315 2316 if (need_header) 2317 length += sprintf (s + length, " LE DTR DSR RTS CTS CD\n"); 2318 length += sprintf (s + length, "%4s %4s %4s %4s %4s %4s\n", 2319 status & TIOCM_LE ? "On" : "-", 2320 status & TIOCM_DTR ? "On" : "-", 2321 status & TIOCM_DSR ? "On" : "-", 2322 status & TIOCM_RTS ? "On" : "-", 2323 status & TIOCM_CTS ? "On" : "-", 2324 status & TIOCM_CD ? "On" : "-"); 2325 return length; 2326} 2327 2328static int print_stats (char *s, cx_chan_t *c, int need_header) 2329{ 2330 int length = 0; 2331 2332 if (need_header) 2333 length += sprintf (s + length, " Rintr Tintr Mintr Ibytes Ipkts Ierrs Obytes Opkts Oerrs\n"); 2334 length += sprintf (s + length, "%7ld %7ld %7ld %8ld %7ld %7ld %8ld %7ld %7ld\n", 2335 c->rintr, c->tintr, c->mintr, c->ibytes, c->ipkts, 2336 c->ierrs, c->obytes, c->opkts, c->oerrs); 2337 return length; 2338} 2339 2340static int print_chan (char *s, cx_chan_t *c) 2341{ 2342 drv_t *d = c->sys; 2343 int length = 0; 2344 2345 length += sprintf (s + length, "cx%d", c->board->num * NCHAN + c->num); 2346 if (d->chan->debug) 2347 length += sprintf (s + length, " debug=%d", d->chan->debug); 2348 2349 if (cx_get_baud (c)) 2350 length += sprintf (s + length, " %ld", cx_get_baud (c)); 2351 else 2352 length += sprintf (s + length, " extclock"); 2353 2354 if (c->mode == M_HDLC) { 2355 length += sprintf (s + length, " dpll=%s", cx_get_dpll (c) ? "on" : "off"); 2356 length += sprintf (s + length, " nrzi=%s", cx_get_nrzi (c) ? "on" : "off"); 2357 } 2358 2359 length += sprintf (s + length, " loop=%s", cx_get_loop (c) ? "on\n" : "off\n"); 2360 return length; 2361} 2362 2363static int ng_cx_rcvmsg (node_p node, item_p item, hook_p lasthook) 2364{ 2365 drv_t *d = NG_NODE_PRIVATE (node); 2366 struct ng_mesg *msg; 2367 struct ng_mesg *resp = NULL; 2368 int error = 0; 2369 2370 if (!d) 2371 return EINVAL; 2372 2373 CX_DEBUG (d, ("Rcvmsg\n")); 2374 NGI_GET_MSG (item, msg); 2375 switch (msg->header.typecookie) { 2376 default: 2377 error = EINVAL; 2378 break; 2379 2380 case NGM_CX_COOKIE: 2381 printf ("Don't forget to implement\n"); 2382 error = EINVAL; 2383 break; 2384 2385 case NGM_GENERIC_COOKIE: 2386 switch (msg->header.cmd) { 2387 default: 2388 error = EINVAL; 2389 break; 2390 2391 case NGM_TEXT_STATUS: { 2392 char *s; 2393 int l = 0; 2394 int dl = sizeof (struct ng_mesg) + 730; 2395 2396 NG_MKRESPONSE (resp, msg, dl, M_NOWAIT); 2397 if (! resp) { 2398 error = ENOMEM; 2399 break; 2400 } 2401 bzero (resp, dl); 2402 s = (resp)->data; 2403 l += print_chan (s + l, d->chan); 2404 l += print_stats (s + l, d->chan, 1); 2405 l += print_modems (s + l, d->chan, 1); 2406 strncpy ((resp)->header.cmdstr, "status", NG_CMDSTRLEN); 2407 } 2408 break; 2409 } 2410 break; 2411 } 2412 NG_RESPOND_MSG (error, node, item, resp); 2413 NG_FREE_MSG (msg); 2414 return error; 2415} 2416 2417static int ng_cx_rcvdata (hook_p hook, item_p item) 2418{ 2419 drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE(hook)); 2420 struct mbuf *m; 2421 struct ng_tag_prio *ptag; 2422 bdrv_t *bd; 2423 struct ifqueue *q; 2424 int s; 2425 2426 NGI_GET_M (item, m); 2427 NG_FREE_ITEM (item); 2428 if (! NG_HOOK_PRIVATE (hook) || ! d) { 2429 NG_FREE_M (m); 2430 return ENETDOWN; 2431 } 2432 2433 bd = d->board->sys; 2434 /* Check for high priority data */ 2435 if ((ptag = (struct ng_tag_prio *)m_tag_locate(m, NGM_GENERIC_COOKIE, 2436 NG_TAG_PRIO, NULL)) != NULL && (ptag->priority > NG_PRIO_CUTOFF) ) 2437 q = &d->hi_queue; 2438 else 2439 q = &d->lo_queue; 2440 2441 s = splhigh (); 2442 CX_LOCK (bd); 2443 IF_LOCK (q); 2444 if (_IF_QFULL (q)) { 2445 _IF_DROP (q); 2446 IF_UNLOCK (q); 2447 CX_UNLOCK (bd); 2448 splx (s); 2449 NG_FREE_M (m); 2450 return ENOBUFS; 2451 } 2452 _IF_ENQUEUE (q, m); 2453 IF_UNLOCK (q); 2454 cx_start (d); 2455 CX_UNLOCK (bd); 2456 splx (s); 2457 return 0; 2458} 2459 2460static int ng_cx_rmnode (node_p node) 2461{ 2462 drv_t *d = NG_NODE_PRIVATE (node); 2463 bdrv_t *bd; 2464 2465 CX_DEBUG (d, ("Rmnode\n")); 2466 if (d && d->running) { 2467 int s = splhigh (); 2468 bd = d->board->sys; 2469 CX_LOCK (bd); 2470 cx_down (d); 2471 CX_UNLOCK (bd); 2472 splx (s); 2473 } 2474#ifdef KLD_MODULE 2475 if (node->nd_flags & NGF_REALLY_DIE) { 2476 NG_NODE_SET_PRIVATE (node, NULL); 2477 NG_NODE_UNREF (node); 2478 } 2479 NG_NODE_REVIVE(node); /* Persistant node */ 2480#endif 2481 return 0; 2482} 2483 2484static void ng_cx_watchdog (void *arg) 2485{ 2486 drv_t *d = arg; 2487 2488 if (d->timeout == 1) 2489 cx_watchdog (d); 2490 if (d->timeout) 2491 d->timeout--; 2492 callout_reset (&d->timeout_handle, hz, ng_cx_watchdog, d); 2493} 2494 2495static int ng_cx_connect (hook_p hook) 2496{ 2497 drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook)); 2498 2499 callout_reset (&d->timeout_handle, hz, ng_cx_watchdog, d); 2500 return 0; 2501} 2502 2503static int ng_cx_disconnect (hook_p hook) 2504{ 2505 drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook)); 2506 bdrv_t *bd = d->board->sys; 2507 int s; 2508 2509 s = splhigh (); 2510 CX_LOCK (bd); 2511 if (NG_HOOK_PRIVATE (hook)) 2512 cx_down (d); 2513 CX_UNLOCK (bd); 2514 splx (s); 2515 /* If we were wait it than it reasserted now, just stop it. */ 2516 if (!callout_drain (&d->timeout_handle)) 2517 callout_stop (&d->timeout_handle); 2518 return 0; 2519} 2520#endif /*NETGRAPH*/ 2521 2522static int cx_modevent (module_t mod, int type, void *unused) 2523{ 2524 static int load_count = 0; 2525 2526 if (cx_mpsafenet) 2527 cx_cdevsw.d_flags &= ~D_NEEDGIANT; 2528 2529 switch (type) { 2530 case MOD_LOAD: 2531#ifdef NETGRAPH 2532 if (ng_newtype (&typestruct)) 2533 printf ("Failed to register ng_cx\n"); 2534#endif 2535 ++load_count; 2536 2537 callout_init (&timeout_handle, cx_mpsafenet?CALLOUT_MPSAFE:0); 2538 callout_reset (&timeout_handle, hz*5, cx_timeout, 0); 2539 /* Software interrupt. */ 2540 swi_add(&tty_intr_event, "cx", cx_softintr, NULL, SWI_TTY, 2541 (cx_mpsafenet?INTR_MPSAFE:0), &cx_fast_ih); 2542 break; 2543 case MOD_UNLOAD: 2544 if (load_count == 1) { 2545 printf ("Removing device entry for Sigma\n"); 2546#ifdef NETGRAPH 2547 ng_rmtype (&typestruct); 2548#endif 2549 } 2550 /* If we were wait it than it reasserted now, just stop it. */ 2551 if (!callout_drain (&timeout_handle)) 2552 callout_stop (&timeout_handle); 2553 swi_remove (cx_fast_ih); 2554 --load_count; 2555 break; 2556 case MOD_SHUTDOWN: 2557 break; 2558 } 2559 return 0; 2560} 2561 2562#ifdef NETGRAPH 2563static struct ng_type typestruct = { 2564 .version = NG_ABI_VERSION, 2565 .name = NG_CX_NODE_TYPE, 2566 .constructor = ng_cx_constructor, 2567 .rcvmsg = ng_cx_rcvmsg, 2568 .shutdown = ng_cx_rmnode, 2569 .newhook = ng_cx_newhook, 2570 .connect = ng_cx_connect, 2571 .rcvdata = ng_cx_rcvdata, 2572 .disconnect = ng_cx_disconnect, 2573}; 2574#endif /*NETGRAPH*/ 2575 2576#ifdef NETGRAPH 2577MODULE_DEPEND (ng_cx, netgraph, NG_ABI_VERSION, NG_ABI_VERSION, NG_ABI_VERSION); 2578#else 2579MODULE_DEPEND (isa_cx, sppp, 1, 1, 1); 2580#endif 2581DRIVER_MODULE (cx, isa, cx_isa_driver, cx_devclass, cx_modevent, NULL); 2582MODULE_VERSION (cx, 1); 2583