The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/cp/if_cp.c

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    1 /*-
    2  * Cronyx-Tau-PCI adapter driver for FreeBSD.
    3  * Supports PPP/HDLC, Cisco/HDLC and FrameRelay 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) 1999-2004 Cronyx Engineering.
    8  * Author: Kurakin Roman, <rik@cronyx.ru>
    9  *
   10  * Copyright (C) 1999-2002 Cronyx Engineering.
   11  * Author: Serge Vakulenko, <vak@cronyx.ru>
   12  *
   13  * This software is distributed with NO WARRANTIES, not even the implied
   14  * warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   15  *
   16  * Authors grant any other persons or organisations a permission to use,
   17  * modify and redistribute this software in source and binary forms,
   18  * as long as this message is kept with the software, all derivative
   19  * works or modified versions.
   20  *
   21  * Cronyx Id: if_cp.c,v 1.1.2.41 2004/06/23 17:09:13 rik Exp $
   22  */
   23 
   24 #include <sys/cdefs.h>
   25 __FBSDID("$FreeBSD: releng/5.4/sys/dev/cp/if_cp.c 141479 2005-02-07 21:33:40Z rik $");
   26 
   27 #include <sys/param.h>
   28 #include <sys/ucred.h>
   29 #include <sys/proc.h>
   30 #include <sys/systm.h>
   31 #include <sys/mbuf.h>
   32 #include <sys/kernel.h>
   33 #include <sys/module.h>
   34 #include <sys/conf.h>
   35 #include <sys/malloc.h>
   36 #include <sys/socket.h>
   37 #include <sys/sockio.h>
   38 #include <sys/sysctl.h>
   39 #include <sys/tty.h>
   40 #include <sys/bus.h>
   41 #include <vm/vm.h>
   42 #include <vm/pmap.h>
   43 #include <net/if.h>
   44 #include <dev/pci/pcivar.h>
   45 #include <dev/pci/pcireg.h>
   46 #include <machine/bus.h>
   47 #include <sys/rman.h>
   48 #include "opt_ng_cronyx.h"
   49 #ifdef NETGRAPH_CRONYX
   50 #   include "opt_netgraph.h"
   51 #   ifndef NETGRAPH
   52 #       error #option   NETGRAPH missed from configuration
   53 #   endif
   54 #   include <netgraph/ng_message.h>
   55 #   include <netgraph/netgraph.h>
   56 #   include <dev/cp/ng_cp.h>
   57 #else
   58 #   include <net/if_sppp.h>
   59 #   define PP_CISCO IFF_LINK2
   60 #   include <net/bpf.h>
   61 #endif
   62 #include <dev/cx/machdep.h>
   63 #include <dev/cp/cpddk.h>
   64 #include <machine/cserial.h>
   65 #include <machine/resource.h>
   66 #include <machine/pmap.h>
   67 
   68 /* If we don't have Cronyx's sppp version, we don't have fr support via sppp */
   69 #ifndef PP_FR
   70 #define PP_FR 0
   71 #endif
   72 
   73 #define CP_DEBUG(d,s)   ({if (d->chan->debug) {\
   74                                 printf ("%s: ", d->name); printf s;}})
   75 #define CP_DEBUG2(d,s)  ({if (d->chan->debug>1) {\
   76                                 printf ("%s: ", d->name); printf s;}})
   77 #define CP_LOCK_NAME    "cpX"
   78 
   79 static  int     cp_mpsafenet = 1;
   80 TUNABLE_INT("debug.cp.mpsafenet", &cp_mpsafenet);
   81 SYSCTL_NODE(_debug, OID_AUTO, cp, CTLFLAG_RD, 0, "Cronyx Tau-PCI Adapters");
   82 SYSCTL_INT(_debug_cp, OID_AUTO, mpsafenet, CTLFLAG_RD, &cp_mpsafenet, 0,
   83         "Enable/disable MPSAFE network support for Cronyx Tau-PCI Adapters");
   84 
   85 #define CP_LOCK(_bd)            do { \
   86                                     if (cp_mpsafenet) \
   87                                         mtx_lock (&(_bd)->cp_mtx); \
   88                                 } while (0)
   89 #define CP_UNLOCK(_bd)          do { \
   90                                     if (cp_mpsafenet) \
   91                                         mtx_unlock (&(_bd)->cp_mtx); \
   92                                 } while (0)
   93 
   94 #define CP_LOCK_ASSERT(_bd)     do { \
   95                                     if (cp_mpsafenet) \
   96                                         mtx_assert (&(_bd)->cp_mtx, MA_OWNED); \
   97                                 } while (0)
   98 
   99 #define CDEV_MAJOR      134
  100 
  101 static  int cp_probe            __P((device_t));
  102 static  int cp_attach           __P((device_t));
  103 static  int cp_detach           __P((device_t));
  104 
  105 static  device_method_t cp_methods[] = {
  106         /* Device interface */
  107         DEVMETHOD(device_probe,         cp_probe),
  108         DEVMETHOD(device_attach,        cp_attach),
  109         DEVMETHOD(device_detach,        cp_detach),
  110 
  111         {0, 0}
  112 };
  113 
  114 typedef struct _cp_dma_mem_t {
  115         unsigned long   phys;
  116         void            *virt;
  117         size_t          size;
  118         bus_dma_tag_t   dmat;
  119         bus_dmamap_t    mapp;
  120 } cp_dma_mem_t;
  121 
  122 typedef struct _drv_t {
  123         char    name [8];
  124         int     running;
  125         cp_chan_t       *chan;
  126         cp_board_t      *board;
  127         cp_dma_mem_t    dmamem;
  128 #ifdef NETGRAPH
  129         char    nodename [NG_NODELEN+1];
  130         hook_p  hook;
  131         hook_p  debug_hook;
  132         node_p  node;
  133         struct  ifqueue queue;
  134         struct  ifqueue hi_queue;
  135         short   timeout;
  136         struct  callout timeout_handle;
  137 #else
  138         struct  ifqueue queue;
  139         struct  sppp pp;
  140 #endif
  141         struct  cdev *devt;
  142 } drv_t;
  143 
  144 typedef struct _bdrv_t {
  145         cp_board_t      *board;
  146         struct resource *cp_res;
  147         struct resource *cp_irq;
  148         void            *cp_intrhand;
  149         cp_dma_mem_t    dmamem;
  150         drv_t           channel [NCHAN];
  151         struct mtx      cp_mtx;
  152 } bdrv_t;
  153 
  154 static  driver_t cp_driver = {
  155         "cp",
  156         cp_methods,
  157         sizeof(bdrv_t),
  158 };
  159 
  160 static  devclass_t cp_devclass;
  161 
  162 static void cp_receive (cp_chan_t *c, unsigned char *data, int len);
  163 static void cp_transmit (cp_chan_t *c, void *attachment, int len);
  164 static void cp_error (cp_chan_t *c, int data);
  165 static void cp_up (drv_t *d);
  166 static void cp_start (drv_t *d);
  167 static void cp_down (drv_t *d);
  168 static void cp_watchdog (drv_t *d);
  169 #ifdef NETGRAPH
  170 extern struct ng_type typestruct;
  171 #else
  172 static void cp_ifstart (struct ifnet *ifp);
  173 static void cp_tlf (struct sppp *sp);
  174 static void cp_tls (struct sppp *sp);
  175 static void cp_ifwatchdog (struct ifnet *ifp);
  176 static int cp_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data);
  177 static void cp_initialize (void *softc);
  178 #endif
  179 
  180 static cp_board_t *adapter [NBRD];
  181 static drv_t *channel [NBRD*NCHAN];
  182 static struct callout led_timo [NBRD];
  183 static struct callout timeout_handle;
  184 
  185 static int cp_destroy = 0;
  186 
  187 /*
  188  * Print the mbuf chain, for debug purposes only.
  189  */
  190 static void printmbuf (struct mbuf *m)
  191 {
  192         printf ("mbuf:");
  193         for (; m; m=m->m_next) {
  194                 if (m->m_flags & M_PKTHDR)
  195                         printf (" HDR %d:", m->m_pkthdr.len);
  196                 if (m->m_flags & M_EXT)
  197                         printf (" EXT:");
  198                 printf (" %d", m->m_len);
  199         }
  200         printf ("\n");
  201 }
  202 
  203 /*
  204  * Make an mbuf from data.
  205  */
  206 static struct mbuf *makembuf (void *buf, unsigned len)
  207 {
  208         struct mbuf *m;
  209 
  210         MGETHDR (m, M_DONTWAIT, MT_DATA);
  211         if (! m)
  212                 return 0;
  213         MCLGET (m, M_DONTWAIT);
  214         if (! (m->m_flags & M_EXT)) {
  215                 m_freem (m);
  216                 return 0;
  217         }
  218         m->m_pkthdr.len = m->m_len = len;
  219         bcopy (buf, mtod (m, caddr_t), len);
  220         return m;
  221 }
  222 
  223 static int cp_probe (device_t dev)
  224 {
  225         if ((pci_get_vendor (dev) == cp_vendor_id) &&
  226             (pci_get_device (dev) == cp_device_id)) {
  227                 device_set_desc (dev, "Cronyx-Tau-PCI serial adapter");
  228                 return 0;
  229         }
  230         return ENXIO;
  231 }
  232 
  233 static void cp_timeout (void *arg)
  234 {
  235         drv_t *d;
  236         int s, i, k;
  237 
  238         for (i = 0; i < NBRD; ++i) {
  239                 if (adapter[i] == NULL)
  240                         continue;
  241                 for (k = 0; k < NCHAN; ++k) {
  242                         s = splimp ();
  243                         if (cp_destroy) {
  244                                 splx (s);
  245                                 return;
  246                         }
  247                         d = channel[i * NCHAN + k];
  248                         if (!d) {
  249                                 splx (s);
  250                                 continue;
  251                         }
  252                         CP_LOCK ((bdrv_t *)d->board->sys);
  253                         switch (d->chan->type) {
  254                         case T_G703:
  255                                 cp_g703_timer (d->chan);
  256                                 break;
  257                         case T_E1:
  258                                 cp_e1_timer (d->chan);
  259                                 break;
  260                         case T_E3:
  261                         case T_T3:
  262                         case T_STS1:
  263                                 cp_e3_timer (d->chan);
  264                                 break;
  265                         default:
  266                                 break;
  267                         }
  268                         CP_UNLOCK ((bdrv_t *)d->board->sys);
  269                         splx (s);
  270                 }
  271         }
  272         s = splimp ();
  273         if (!cp_destroy)
  274                 callout_reset (&timeout_handle, hz, cp_timeout, 0);
  275         splx (s);
  276 }
  277 
  278 static void cp_led_off (void *arg)
  279 {
  280         cp_board_t *b = arg;
  281         bdrv_t *bd = (bdrv_t *) b->sys;
  282         int s;
  283         s = splimp ();
  284         if (cp_destroy) {
  285                 splx (s);
  286                 return;
  287         }
  288         CP_LOCK (bd);
  289         cp_led (b, 0);
  290         CP_UNLOCK (bd);
  291         splx (s);
  292 }
  293 
  294 static void cp_intr (void *arg)
  295 {
  296         bdrv_t *bd = arg;
  297         cp_board_t *b = bd->board;
  298 #ifndef NETGRAPH
  299         int i;
  300 #endif
  301         int s = splimp ();
  302         if (cp_destroy) {
  303                 splx (s);
  304                 return;
  305         }
  306         CP_LOCK (bd);
  307         /* Check if we are ready */
  308         if (b->sys == NULL) {
  309                 /* Not we are not, just cleanup. */
  310                 cp_interrupt_poll (b, 1);
  311                 CP_UNLOCK (bd);
  312                 return;
  313         }
  314         /* Turn LED on. */
  315         cp_led (b, 1);
  316 
  317         cp_interrupt (b);
  318 
  319         /* Turn LED off 50 msec later. */
  320         callout_reset (&led_timo[b->num], hz/20, cp_led_off, b);
  321         CP_UNLOCK (bd);
  322         splx (s);
  323 
  324 #ifndef NETGRAPH
  325         /* Pass packets in a lock-free state */
  326         for (i = 0; i < NCHAN && b->chan[i].type; i++) {
  327                 drv_t *d = b->chan[i].sys;
  328                 struct mbuf *m;
  329                 while (_IF_QLEN(&d->queue)) {
  330                         IF_DEQUEUE (&d->queue,m);
  331                         if (!m)
  332                                 continue;
  333                         sppp_input (&d->pp.pp_if, m);   
  334                 }
  335         }
  336 #endif
  337 }
  338 
  339 extern struct cdevsw cp_cdevsw;
  340 
  341 static void
  342 cp_bus_dmamap_addr (void *arg, bus_dma_segment_t *segs, int nseg, int error)
  343 {
  344         unsigned long *addr;
  345 
  346         if (error)
  347                 return;
  348 
  349         KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
  350         addr = arg;
  351         *addr = segs->ds_addr;
  352 }
  353 
  354 static int
  355 cp_bus_dma_mem_alloc (int bnum, int cnum, cp_dma_mem_t *dmem)
  356 {
  357         int error;
  358 
  359         error = bus_dma_tag_create (NULL, 16, 0, BUS_SPACE_MAXADDR_32BIT,
  360                 BUS_SPACE_MAXADDR, NULL, NULL, dmem->size, 1,
  361                 dmem->size, 0, NULL, NULL, &dmem->dmat);
  362         if (error) {
  363                 if (cnum >= 0)  printf ("cp%d-%d: ", bnum, cnum);
  364                 else            printf ("cp%d: ", bnum);
  365                 printf ("couldn't allocate tag for dma memory\n");
  366                 return 0;
  367         }
  368         error = bus_dmamem_alloc (dmem->dmat, (void **)&dmem->virt,
  369                 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &dmem->mapp);
  370         if (error) {
  371                 if (cnum >= 0)  printf ("cp%d-%d: ", bnum, cnum);
  372                 else            printf ("cp%d: ", bnum);
  373                 printf ("couldn't allocate mem for dma memory\n");
  374                 bus_dma_tag_destroy (dmem->dmat);
  375                 return 0;
  376         }
  377         error = bus_dmamap_load (dmem->dmat, dmem->mapp, dmem->virt,
  378                 dmem->size, cp_bus_dmamap_addr, &dmem->phys, 0);
  379         if (error) {
  380                 if (cnum >= 0)  printf ("cp%d-%d: ", bnum, cnum);
  381                 else            printf ("cp%d: ", bnum);
  382                 printf ("couldn't load mem map for dma memory\n");
  383                 bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp);
  384                 bus_dma_tag_destroy (dmem->dmat);
  385                 return 0;
  386         }
  387         return 1;
  388 }
  389 
  390 static void
  391 cp_bus_dma_mem_free (cp_dma_mem_t *dmem)
  392 {
  393         bus_dmamap_unload (dmem->dmat, dmem->mapp);
  394         bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp);
  395         bus_dma_tag_destroy (dmem->dmat);
  396 }
  397 
  398 /*
  399  * Called if the probe succeeded.
  400  */
  401 static int cp_attach (device_t dev)
  402 {
  403         bdrv_t *bd = device_get_softc (dev);
  404         int unit = device_get_unit (dev);
  405         char *cp_ln = CP_LOCK_NAME;
  406         unsigned short res;
  407         vm_offset_t vbase;
  408         int rid, error;
  409         cp_board_t *b;
  410         cp_chan_t *c;
  411         drv_t *d;
  412         int s = splimp ();
  413 
  414         b = malloc (sizeof(cp_board_t), M_DEVBUF, M_WAITOK);
  415         if (!b) {
  416                 printf ("cp%d: couldn't allocate memory\n", unit);              
  417                 splx (s);
  418                 return (ENXIO);
  419         }
  420         bzero (b, sizeof(cp_board_t));
  421 
  422         bd->board = b;
  423         rid = PCIR_BAR(0);
  424         bd->cp_res = bus_alloc_resource (dev, SYS_RES_MEMORY, &rid,
  425                         0, ~0, 1, RF_ACTIVE);
  426         if (! bd->cp_res) {
  427                 printf ("cp%d: cannot map memory\n", unit);
  428                 free (b, M_DEVBUF);
  429                 splx (s);
  430                 return (ENXIO);
  431         }
  432         vbase = (vm_offset_t) rman_get_virtual (bd->cp_res);
  433 
  434         cp_ln[2] = '' + unit;
  435         mtx_init (&bd->cp_mtx, cp_ln, MTX_NETWORK_LOCK, MTX_DEF|MTX_RECURSE);
  436         res = cp_init (b, unit, (u_char*) vbase);
  437         if (res) {
  438                 printf ("cp%d: can't init, error code:%x\n", unit, res);
  439                 bus_release_resource (dev, SYS_RES_MEMORY, PCIR_BAR(0), bd->cp_res);
  440                 free (b, M_DEVBUF);
  441                 splx (s);
  442                 return (ENXIO);
  443         }
  444 
  445         bd->dmamem.size = sizeof(cp_qbuf_t);
  446         if (! cp_bus_dma_mem_alloc (unit, -1, &bd->dmamem)) {
  447                 free (b, M_DEVBUF);
  448                 splx (s);
  449                 return (ENXIO);
  450         }
  451         CP_LOCK (bd);
  452         cp_reset (b, bd->dmamem.virt, bd->dmamem.phys);
  453         CP_UNLOCK (bd);
  454 
  455         rid = 0;
  456         bd->cp_irq = bus_alloc_resource (dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
  457                         RF_SHAREABLE | RF_ACTIVE);
  458         if (! bd->cp_irq) {
  459                 cp_destroy = 1;
  460                 printf ("cp%d: cannot map interrupt\n", unit);  
  461                 bus_release_resource (dev, SYS_RES_MEMORY,
  462                                 PCIR_BAR(0), bd->cp_res);
  463                 mtx_destroy (&bd->cp_mtx);
  464                 free (b, M_DEVBUF);
  465                 splx (s);
  466                 return (ENXIO);
  467         }
  468         callout_init (&led_timo[unit], cp_mpsafenet ? CALLOUT_MPSAFE : 0);
  469         error  = bus_setup_intr (dev, bd->cp_irq,
  470                                 INTR_TYPE_NET|(cp_mpsafenet?INTR_MPSAFE:0),
  471                                 cp_intr, bd, &bd->cp_intrhand);
  472         if (error) {
  473                 cp_destroy = 1;
  474                 printf ("cp%d: cannot set up irq\n", unit);
  475                 bus_release_resource (dev, SYS_RES_IRQ, 0, bd->cp_irq);
  476                 bus_release_resource (dev, SYS_RES_MEMORY,
  477                                 PCIR_BAR(0), bd->cp_res);
  478                 mtx_destroy (&bd->cp_mtx);
  479                 free (b, M_DEVBUF);
  480                 splx (s);
  481                 return (ENXIO);
  482         }
  483         printf ("cp%d: %s, clock %ld MHz\n", unit, b->name, b->osc / 1000000);
  484 
  485         for (c = b->chan; c < b->chan + NCHAN; ++c) {
  486                 if (! c->type)
  487                         continue;
  488                 d = &bd->channel[c->num];
  489                 d->dmamem.size = sizeof(cp_buf_t);
  490                 if (! cp_bus_dma_mem_alloc (unit, c->num, &d->dmamem))
  491                         continue;
  492                 channel [b->num*NCHAN + c->num] = d;
  493                 sprintf (d->name, "cp%d.%d", b->num, c->num);
  494                 d->board = b;
  495                 d->chan = c;
  496                 c->sys = d;
  497 #ifdef NETGRAPH
  498                 if (ng_make_node_common (&typestruct, &d->node) != 0) {
  499                         printf ("%s: cannot make common node\n", d->name);
  500                         d->node = NULL;
  501                         continue;
  502                 }
  503                 NG_NODE_SET_PRIVATE (d->node, d);
  504                 sprintf (d->nodename, "%s%d", NG_CP_NODE_TYPE,
  505                          c->board->num*NCHAN + c->num);
  506                 if (ng_name_node (d->node, d->nodename)) {
  507                         printf ("%s: cannot name node\n", d->nodename);
  508                         NG_NODE_UNREF (d->node);
  509                         continue;
  510                 }
  511                 d->queue.ifq_maxlen = IFQ_MAXLEN;
  512                 d->hi_queue.ifq_maxlen = IFQ_MAXLEN;
  513                 mtx_init (&d->queue.ifq_mtx, "cp_queue", NULL, MTX_DEF);
  514                 mtx_init (&d->hi_queue.ifq_mtx, "cp_queue_hi", NULL, MTX_DEF);
  515                 callout_init (&d->timeout_handle,
  516                              cp_mpsafenet ? CALLOUT_MPSAFE : 0);
  517 #else /*NETGRAPH*/
  518                 d->pp.pp_if.if_softc    = d;
  519                 if_initname (&d->pp.pp_if, "cp", b->num * NCHAN + c->num);
  520                 d->pp.pp_if.if_mtu      = PP_MTU;
  521                 d->pp.pp_if.if_flags    = IFF_POINTOPOINT | IFF_MULTICAST;
  522                 if (!cp_mpsafenet)
  523                         d->pp.pp_if.if_flags |= IFF_NEEDSGIANT;
  524                 d->pp.pp_if.if_ioctl    = cp_sioctl;
  525                 d->pp.pp_if.if_start    = cp_ifstart;
  526                 d->pp.pp_if.if_watchdog = cp_ifwatchdog;
  527                 d->pp.pp_if.if_init     = cp_initialize;
  528                 d->queue.ifq_maxlen     = NRBUF;
  529                 mtx_init (&d->queue.ifq_mtx, "cp_queue", NULL, MTX_DEF);
  530                 sppp_attach (&d->pp.pp_if);
  531                 if_attach (&d->pp.pp_if);
  532                 d->pp.pp_tlf            = cp_tlf;
  533                 d->pp.pp_tls            = cp_tls;
  534                 /* If BPF is in the kernel, call the attach for it.
  535                  * The header size of PPP or Cisco/HDLC is 4 bytes. */
  536                 bpfattach (&d->pp.pp_if, DLT_PPP, 4);
  537 #endif /*NETGRAPH*/
  538                 cp_start_e1 (c);
  539                 cp_start_chan (c, 1, 1, d->dmamem.virt, d->dmamem.phys);
  540 
  541                 /* Register callback functions. */
  542                 cp_register_transmit (c, &cp_transmit);
  543                 cp_register_receive (c, &cp_receive);
  544                 cp_register_error (c, &cp_error);
  545                 d->devt = make_dev (&cp_cdevsw, b->num*NCHAN+c->num, UID_ROOT,
  546                                 GID_WHEEL, 0600, "cp%d", b->num*NCHAN+c->num);
  547         }
  548         CP_LOCK (bd);
  549         b->sys = bd;
  550         adapter[unit] = b;
  551         CP_UNLOCK (bd);
  552         splx (s);
  553         return 0;
  554 }
  555 
  556 static int cp_detach (device_t dev)
  557 {
  558         bdrv_t *bd = device_get_softc (dev);
  559         cp_board_t *b = bd->board;
  560         cp_chan_t *c;
  561         int s;
  562 
  563         KASSERT (mtx_initialized (&bd->cp_mtx), ("cp mutex not initialized"));
  564         s = splimp ();
  565         CP_LOCK (bd);
  566         /* Check if the device is busy (open). */
  567         for (c = b->chan; c < b->chan + NCHAN; ++c) {
  568                 drv_t *d = (drv_t*) c->sys;
  569 
  570                 if (! d || ! d->chan->type)
  571                         continue;
  572                 if (d->running) {
  573                         CP_UNLOCK (bd);
  574                         splx (s);
  575                         return EBUSY;
  576                 }
  577         }
  578 
  579         /* Ok, we can unload driver */
  580         /* At first we should stop all channels */
  581         for (c = b->chan; c < b->chan + NCHAN; ++c) {
  582                 drv_t *d = (drv_t*) c->sys;
  583 
  584                 if (! d || ! d->chan->type)
  585                         continue;
  586 
  587                 cp_stop_chan (c);
  588                 cp_stop_e1 (c);
  589                 cp_set_dtr (d->chan, 0);
  590                 cp_set_rts (d->chan, 0);
  591         }
  592 
  593         /* Reset the adapter. */
  594         cp_destroy = 1;
  595         cp_interrupt_poll (b, 1);
  596         cp_led_off (b);
  597         cp_reset (b, 0 ,0);
  598         callout_stop (&led_timo[b->num]);
  599 
  600         for (c=b->chan; c<b->chan+NCHAN; ++c) {
  601                 drv_t *d = (drv_t*) c->sys;
  602 
  603                 if (! d || ! d->chan->type)
  604                         continue;
  605 #ifndef NETGRAPH
  606                 /* Detach from the packet filter list of interfaces. */
  607                 bpfdetach (&d->pp.pp_if);
  608 
  609                 /* Detach from the sync PPP list. */
  610                 sppp_detach (&d->pp.pp_if);
  611 
  612                 /* Detach from the system list of interfaces. */
  613                 if_detach (&d->pp.pp_if);
  614                 IF_DRAIN (&d->queue);
  615                 mtx_destroy (&d->queue.ifq_mtx);
  616 #else
  617                 if (d->node) {
  618                         ng_rmnode_self (d->node);
  619                         NG_NODE_UNREF (d->node);
  620                         d->node = NULL;
  621                 }
  622                 mtx_destroy (&d->queue.ifq_mtx);
  623                 mtx_destroy (&d->hi_queue.ifq_mtx);
  624 #endif
  625                 destroy_dev (d->devt);
  626         }
  627 
  628         b->sys = NULL;
  629         CP_UNLOCK (bd);
  630 
  631         /* Disable the interrupt request. */
  632         bus_teardown_intr (dev, bd->cp_irq, bd->cp_intrhand);
  633         bus_deactivate_resource (dev, SYS_RES_IRQ, 0, bd->cp_irq);
  634         bus_release_resource (dev, SYS_RES_IRQ, 0, bd->cp_irq);
  635         bus_release_resource (dev, SYS_RES_MEMORY, PCIR_BAR(0), bd->cp_res);
  636 
  637         CP_LOCK (bd);
  638         cp_led_off (b);
  639         CP_UNLOCK (bd);
  640         callout_drain (&led_timo[b->num]);
  641         splx (s);
  642 
  643         s = splimp ();
  644         for (c = b->chan; c < b->chan + NCHAN; ++c) {
  645                 drv_t *d = (drv_t*) c->sys;
  646 
  647                 if (! d || ! d->chan->type)
  648                         continue;
  649                 channel [b->num*NCHAN + c->num] = 0;
  650                 /* Deallocate buffers. */
  651                 cp_bus_dma_mem_free (&d->dmamem);
  652         }
  653         adapter [b->num] = 0;
  654         cp_bus_dma_mem_free (&bd->dmamem);
  655         free (b, M_DEVBUF);
  656         splx (s);
  657         mtx_destroy (&bd->cp_mtx);
  658         return 0;
  659 }
  660 
  661 #ifndef NETGRAPH
  662 static void cp_ifstart (struct ifnet *ifp)
  663 {
  664         drv_t *d = ifp->if_softc;
  665         bdrv_t *bd = d->board->sys;
  666 
  667         CP_LOCK (bd);
  668         cp_start (d);
  669         CP_UNLOCK (bd);
  670 }
  671 
  672 static void cp_ifwatchdog (struct ifnet *ifp)
  673 {
  674         drv_t *d = ifp->if_softc;
  675 
  676         cp_watchdog (d);
  677 }
  678 
  679 static void cp_tlf (struct sppp *sp)
  680 {
  681         drv_t *d = sp->pp_if.if_softc;
  682 
  683         CP_DEBUG2 (d, ("cp_tlf\n"));
  684         /* XXXRIK: Don't forget to protect them by LOCK, or kill them. */
  685 /*      cp_set_dtr (d->chan, 0);*/
  686 /*      cp_set_rts (d->chan, 0);*/
  687         if (!(d->pp.pp_flags & PP_FR) && !(d->pp.pp_if.if_flags & PP_CISCO))
  688                 sp->pp_down (sp);
  689 }
  690 
  691 static void cp_tls (struct sppp *sp)
  692 {
  693         drv_t *d = sp->pp_if.if_softc;
  694 
  695         CP_DEBUG2 (d, ("cp_tls\n"));
  696         if (!(d->pp.pp_flags & PP_FR) && !(d->pp.pp_if.if_flags & PP_CISCO))
  697                 sp->pp_up (sp);
  698 }
  699 
  700 /*
  701  * Process an ioctl request.
  702  */
  703 static int cp_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data)
  704 {
  705         drv_t *d = ifp->if_softc;
  706         bdrv_t *bd = d->board->sys;
  707         int error, s, was_up, should_be_up;
  708 
  709         was_up = (ifp->if_flags & IFF_RUNNING) != 0;
  710         error = sppp_ioctl (ifp, cmd, data);
  711 
  712         if (error)
  713                 return error;
  714 
  715         if (! (ifp->if_flags & IFF_DEBUG))
  716                 d->chan->debug = 0;
  717         else if (! d->chan->debug)
  718                 d->chan->debug = 1;
  719 
  720         switch (cmd) {
  721         default:           CP_DEBUG2 (d, ("ioctl 0x%lx\n", cmd));   return 0;
  722         case SIOCADDMULTI: CP_DEBUG2 (d, ("ioctl SIOCADDMULTI\n")); return 0;
  723         case SIOCDELMULTI: CP_DEBUG2 (d, ("ioctl SIOCDELMULTI\n")); return 0;
  724         case SIOCSIFFLAGS: CP_DEBUG2 (d, ("ioctl SIOCSIFFLAGS\n")); break;
  725         case SIOCSIFADDR:  CP_DEBUG2 (d, ("ioctl SIOCSIFADDR\n"));  break;
  726         }
  727 
  728         /* We get here only in case of SIFFLAGS or SIFADDR. */
  729         s = splimp ();
  730         CP_LOCK (bd);
  731         should_be_up = (ifp->if_flags & IFF_RUNNING) != 0;
  732         if (! was_up && should_be_up) {
  733                 /* Interface goes up -- start it. */
  734                 cp_up (d);
  735                 cp_start (d);
  736         } else if (was_up && ! should_be_up) {
  737                 /* Interface is going down -- stop it. */
  738 /*              if ((d->pp.pp_flags & PP_FR) || (ifp->if_flags & PP_CISCO))*/
  739                 cp_down (d);
  740         }
  741         CP_DEBUG (d, ("ioctl 0x%lx p4\n", cmd));
  742         CP_UNLOCK (bd);
  743         splx (s);
  744         return 0;
  745 }
  746 
  747 /*
  748  * Initialization of interface.
  749  * It seems to be never called by upper level?
  750  */
  751 static void cp_initialize (void *softc)
  752 {
  753         drv_t *d = softc;
  754 
  755         CP_DEBUG (d, ("cp_initialize\n"));
  756 }
  757 #endif /*NETGRAPH*/
  758 
  759 /*
  760  * Stop the interface.  Called on splimp().
  761  */
  762 static void cp_down (drv_t *d)
  763 {
  764         CP_DEBUG (d, ("cp_down\n"));
  765         /* Interface is going down -- stop it. */
  766         cp_set_dtr (d->chan, 0);
  767         cp_set_rts (d->chan, 0);
  768 
  769         d->running = 0;
  770 }
  771 
  772 /*
  773  * Start the interface.  Called on splimp().
  774  */
  775 static void cp_up (drv_t *d)
  776 {
  777         CP_DEBUG (d, ("cp_up\n"));
  778         cp_set_dtr (d->chan, 1);
  779         cp_set_rts (d->chan, 1);
  780         d->running = 1;
  781 }
  782 
  783 /*
  784  * Start output on the interface.  Get another datagram to send
  785  * off of the interface queue, and copy it to the interface
  786  * before starting the output.
  787  */
  788 static void cp_send (drv_t *d)
  789 {
  790         struct mbuf *m;
  791         u_short len;
  792 
  793         CP_DEBUG2 (d, ("cp_send, tn=%d te=%d\n", d->chan->tn, d->chan->te));
  794 
  795         /* No output if the interface is down. */
  796         if (! d->running)
  797                 return;
  798 
  799         /* No output if the modem is off. */
  800         if (! (d->chan->lloop || d->chan->type != T_SERIAL ||
  801                 cp_get_dsr (d->chan)))
  802                 return;
  803 
  804         while (cp_transmit_space (d->chan)) {
  805                 /* Get the packet to send. */
  806 #ifdef NETGRAPH
  807                 IF_DEQUEUE (&d->hi_queue, m);
  808                 if (! m)
  809                         IF_DEQUEUE (&d->queue, m);
  810 #else
  811                 m = sppp_dequeue (&d->pp.pp_if);
  812 #endif
  813                 if (! m)
  814                         return;
  815 #ifndef NETGRAPH
  816                 if (d->pp.pp_if.if_bpf)
  817                         BPF_MTAP (&d->pp.pp_if, m);
  818 #endif
  819                 len = m->m_pkthdr.len;
  820                 if (len >= BUFSZ)
  821                         printf ("%s: too long packet: %d bytes: ",
  822                                 d->name, len);
  823                 else if (! m->m_next)
  824                         cp_send_packet (d->chan, (u_char*) mtod (m, caddr_t), len, 0);
  825                 else {
  826                         u_char *buf = d->chan->tbuf[d->chan->te];
  827                         m_copydata (m, 0, len, buf);
  828                         cp_send_packet (d->chan, buf, len, 0);
  829                 }
  830                 m_freem (m);
  831                 /* Set up transmit timeout, if the transmit ring is not empty.*/
  832 #ifdef NETGRAPH
  833                 d->timeout = 10;
  834 #else
  835                 d->pp.pp_if.if_timer = 10;
  836 #endif
  837         }
  838 #ifndef NETGRAPH
  839         d->pp.pp_if.if_flags |= IFF_OACTIVE;
  840 #endif
  841 }
  842 
  843 /*
  844  * Start output on the interface.
  845  * Always called on splimp().
  846  */
  847 static void cp_start (drv_t *d)
  848 {
  849         if (d->running) {
  850                 if (! d->chan->dtr)
  851                         cp_set_dtr (d->chan, 1);
  852                 if (! d->chan->rts)
  853                         cp_set_rts (d->chan, 1);
  854                 cp_send (d);
  855         }
  856 }
  857 
  858 /*
  859  * Handle transmit timeouts.
  860  * Recover after lost transmit interrupts.
  861  * Always called on splimp().
  862  */
  863 static void cp_watchdog (drv_t *d)
  864 {
  865         bdrv_t *bd = d->board->sys;
  866         CP_DEBUG (d, ("device timeout\n"));
  867         if (d->running) {
  868                 int s = splimp ();
  869 
  870                 CP_LOCK (bd);
  871                 cp_stop_chan (d->chan);
  872                 cp_stop_e1 (d->chan);
  873                 cp_start_e1 (d->chan);
  874                 cp_start_chan (d->chan, 1, 1, 0, 0);
  875                 cp_set_dtr (d->chan, 1);
  876                 cp_set_rts (d->chan, 1);
  877                 cp_start (d);
  878                 CP_UNLOCK (bd);
  879                 splx (s);
  880         }
  881 }
  882 
  883 static void cp_transmit (cp_chan_t *c, void *attachment, int len)
  884 {
  885         drv_t *d = c->sys;
  886 
  887 #ifdef NETGRAPH
  888         d->timeout = 0;
  889 #else
  890         ++d->pp.pp_if.if_opackets;
  891         d->pp.pp_if.if_flags &= ~IFF_OACTIVE;
  892         d->pp.pp_if.if_timer = 0;
  893 #endif
  894         cp_start (d);
  895 }
  896 
  897 static void cp_receive (cp_chan_t *c, unsigned char *data, int len)
  898 {
  899         drv_t *d = c->sys;
  900         struct mbuf *m;
  901 #ifdef NETGRAPH
  902         int error;
  903 #endif
  904 
  905         if (! d->running)
  906                 return;
  907 
  908         m = makembuf (data, len);
  909         if (! m) {
  910                 CP_DEBUG (d, ("no memory for packet\n"));
  911 #ifndef NETGRAPH
  912                 ++d->pp.pp_if.if_iqdrops;
  913 #endif
  914                 return;
  915         }
  916         if (c->debug > 1)
  917                 printmbuf (m);
  918 #ifdef NETGRAPH
  919         m->m_pkthdr.rcvif = 0;
  920         NG_SEND_DATA_ONLY (error, d->hook, m);
  921 #else
  922         ++d->pp.pp_if.if_ipackets;
  923         m->m_pkthdr.rcvif = &d->pp.pp_if;
  924         /* Check if there's a BPF listener on this interface.
  925          * If so, hand off the raw packet to bpf. */
  926         if (d->pp.pp_if.if_bpf)
  927                 BPF_TAP (&d->pp.pp_if, data, len);
  928         IF_ENQUEUE (&d->queue, m);
  929 #endif
  930 }
  931 
  932 static void cp_error (cp_chan_t *c, int data)
  933 {
  934         drv_t *d = c->sys;
  935 
  936         switch (data) {
  937         case CP_FRAME:
  938                 CP_DEBUG (d, ("frame error\n"));
  939 #ifndef NETGRAPH
  940                 ++d->pp.pp_if.if_ierrors;
  941 #endif
  942                 break;
  943         case CP_CRC:
  944                 CP_DEBUG (d, ("crc error\n"));
  945 #ifndef NETGRAPH
  946                 ++d->pp.pp_if.if_ierrors;
  947 #endif
  948                 break;
  949         case CP_OVERRUN:
  950                 CP_DEBUG (d, ("overrun error\n"));
  951 #ifndef NETGRAPH
  952                 ++d->pp.pp_if.if_collisions;
  953                 ++d->pp.pp_if.if_ierrors;
  954 #endif
  955                 break;
  956         case CP_OVERFLOW:
  957                 CP_DEBUG (d, ("overflow error\n"));
  958 #ifndef NETGRAPH
  959                 ++d->pp.pp_if.if_ierrors;
  960 #endif
  961                 break;
  962         case CP_UNDERRUN:
  963                 CP_DEBUG (d, ("underrun error\n"));
  964 #ifdef NETGRAPH
  965                 d->timeout = 0;
  966 #else
  967                 ++d->pp.pp_if.if_oerrors;
  968                 d->pp.pp_if.if_flags &= ~IFF_OACTIVE;
  969                 d->pp.pp_if.if_timer = 0;
  970 #endif
  971                 cp_start (d);
  972                 break;
  973         default:
  974                 CP_DEBUG (d, ("error #%d\n", data));
  975                 break;
  976         }
  977 }
  978 
  979 /*
  980  * You also need read, write, open, close routines.
  981  * This should get you started
  982  */
  983 static int cp_open (struct cdev *dev, int oflags, int devtype, struct thread *td)
  984 {
  985         int unit = minor (dev);
  986         drv_t *d;
  987 
  988         if (unit >= NBRD*NCHAN || ! (d = channel[unit]))
  989                 return ENXIO;
  990         CP_DEBUG2 (d, ("cp_open\n"));
  991         return 0;
  992 }
  993 
  994 /*
  995  * Only called on the LAST close.
  996  */
  997 static int cp_close (struct cdev *dev, int fflag, int devtype, struct thread *td)
  998 {
  999         drv_t *d = channel [minor (dev)];
 1000 
 1001         CP_DEBUG2 (d, ("cp_close\n"));
 1002         return 0;
 1003 }
 1004 
 1005 static int cp_modem_status (cp_chan_t *c)
 1006 {
 1007         drv_t *d = c->sys;
 1008         bdrv_t *bd = d->board->sys;
 1009         int status, s;
 1010 
 1011         status = d->running ? TIOCM_LE : 0;
 1012         s = splimp ();
 1013         CP_LOCK (bd);
 1014         if (cp_get_cd  (c)) status |= TIOCM_CD;
 1015         if (cp_get_cts (c)) status |= TIOCM_CTS;
 1016         if (cp_get_dsr (c)) status |= TIOCM_DSR;
 1017         if (c->dtr)         status |= TIOCM_DTR;
 1018         if (c->rts)         status |= TIOCM_RTS;
 1019         CP_UNLOCK (bd);
 1020         splx (s);
 1021         return status;
 1022 }
 1023 
 1024 static int cp_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
 1025 {
 1026         drv_t *d = channel [minor (dev)];
 1027         bdrv_t *bd = d->board->sys;
 1028         cp_chan_t *c = d->chan;
 1029         struct serial_statistics *st;
 1030         struct e1_statistics *opte1;
 1031         struct e3_statistics *opte3;
 1032         int error, s;
 1033         char mask[16];
 1034 
 1035         switch (cmd) {
 1036         case SERIAL_GETREGISTERED:
 1037                 CP_DEBUG2 (d, ("ioctl: getregistered\n"));
 1038                 bzero (mask, sizeof(mask));
 1039                 for (s=0; s<NBRD*NCHAN; ++s)
 1040                         if (channel [s])
 1041                                 mask [s/8] |= 1 << (s & 7);
 1042                 bcopy (mask, data, sizeof (mask));
 1043                 return 0;
 1044 
 1045 #ifndef NETGRAPH
 1046         case SERIAL_GETPROTO:
 1047                 CP_DEBUG2 (d, ("ioctl: getproto\n"));
 1048                 strcpy ((char*)data, (d->pp.pp_flags & PP_FR) ? "fr" :
 1049                         (d->pp.pp_if.if_flags & PP_CISCO) ? "cisco" : "ppp");
 1050                 return 0;
 1051 
 1052         case SERIAL_SETPROTO:
 1053                 CP_DEBUG2 (d, ("ioctl: setproto\n"));
 1054                 /* Only for superuser! */
 1055                 error = suser (td);
 1056                 if (error)
 1057                         return error;
 1058                 if (d->pp.pp_if.if_flags & IFF_RUNNING)
 1059                         return EBUSY;
 1060                 if (! strcmp ("cisco", (char*)data)) {
 1061                         d->pp.pp_flags &= ~(PP_FR);
 1062                         d->pp.pp_flags |= PP_KEEPALIVE;
 1063                         d->pp.pp_if.if_flags |= PP_CISCO;
 1064                 } else if (! strcmp ("fr", (char*)data) && PP_FR) {
 1065                         d->pp.pp_if.if_flags &= ~(PP_CISCO);
 1066                         d->pp.pp_flags |= PP_FR | PP_KEEPALIVE;
 1067                 } else if (! strcmp ("ppp", (char*)data)) {
 1068                         d->pp.pp_flags &= ~PP_FR;
 1069                         d->pp.pp_flags &= ~PP_KEEPALIVE;
 1070                         d->pp.pp_if.if_flags &= ~(PP_CISCO);
 1071                 } else
 1072                         return EINVAL;
 1073                 return 0;
 1074 
 1075         case SERIAL_GETKEEPALIVE:
 1076                 CP_DEBUG2 (d, ("ioctl: getkeepalive\n"));
 1077                 if ((d->pp.pp_flags & PP_FR) ||
 1078                         (d->pp.pp_if.if_flags & PP_CISCO))
 1079                         return EINVAL;
 1080                 *(int*)data = (d->pp.pp_flags & PP_KEEPALIVE) ? 1 : 0;
 1081                 return 0;
 1082 
 1083         case SERIAL_SETKEEPALIVE:
 1084                 CP_DEBUG2 (d, ("ioctl: setkeepalive\n"));
 1085                 /* Only for superuser! */
 1086                 error = suser (td);
 1087                 if (error)
 1088                         return error;
 1089                 if ((d->pp.pp_flags & PP_FR) ||
 1090                         (d->pp.pp_if.if_flags & PP_CISCO))
 1091                         return EINVAL;
 1092                 s = splimp ();
 1093                 CP_LOCK (bd);
 1094                 if (*(int*)data)
 1095                         d->pp.pp_flags |= PP_KEEPALIVE;
 1096                 else
 1097                         d->pp.pp_flags &= ~PP_KEEPALIVE;
 1098                 CP_UNLOCK (bd);
 1099                 splx (s);
 1100                 return 0;
 1101 #endif /*NETGRAPH*/
 1102 
 1103         case SERIAL_GETMODE:
 1104                 CP_DEBUG2 (d, ("ioctl: getmode\n"));
 1105                 *(int*)data = SERIAL_HDLC;
 1106                 return 0;
 1107 
 1108         case SERIAL_SETMODE:
 1109                 /* Only for superuser! */
 1110                 error = suser (td);
 1111                 if (error)
 1112                         return error;
 1113                 if (*(int*)data != SERIAL_HDLC)
 1114                         return EINVAL;
 1115                 return 0;
 1116 
 1117         case SERIAL_GETCFG:
 1118                 CP_DEBUG2 (d, ("ioctl: getcfg\n"));
 1119                 if (c->type != T_E1 || c->unfram)
 1120                         return EINVAL;
 1121                 *(char*)data = c->board->mux ? 'c' : 'a';
 1122                 return 0;
 1123 
 1124         case SERIAL_SETCFG:
 1125                 CP_DEBUG2 (d, ("ioctl: setcfg\n"));
 1126                 error = suser (td);
 1127                 if (error)
 1128                         return error;
 1129                 if (c->type != T_E1)
 1130                         return EINVAL;
 1131                 s = splimp ();
 1132                 CP_LOCK (bd);
 1133                 cp_set_mux (c->board, *((char*)data) == 'c');
 1134                 CP_UNLOCK (bd);
 1135                 splx (s);
 1136                 return 0;
 1137 
 1138         case SERIAL_GETSTAT:
 1139                 CP_DEBUG2 (d, ("ioctl: getstat\n"));
 1140                 st = (struct serial_statistics*) data;
 1141                 st->rintr  = c->rintr;
 1142                 st->tintr  = c->tintr;
 1143                 st->mintr  = 0;
 1144                 st->ibytes = c->ibytes;
 1145                 st->ipkts  = c->ipkts;
 1146                 st->obytes = c->obytes;
 1147                 st->opkts  = c->opkts;
 1148                 st->ierrs  = c->overrun + c->frame + c->crc;
 1149                 st->oerrs  = c->underrun;
 1150                 return 0;
 1151 
 1152         case SERIAL_GETESTAT:
 1153                 CP_DEBUG2 (d, ("ioctl: getestat\n"));
 1154                 if (c->type != T_E1 && c->type != T_G703)
 1155                         return EINVAL;
 1156                 opte1 = (struct e1_statistics*) data;
 1157                 opte1->status       = c->status;
 1158                 opte1->cursec       = c->cursec;
 1159                 opte1->totsec       = c->totsec + c->cursec;
 1160 
 1161                 opte1->currnt.bpv   = c->currnt.bpv;
 1162                 opte1->currnt.fse   = c->currnt.fse;
 1163                 opte1->currnt.crce  = c->currnt.crce;
 1164                 opte1->currnt.rcrce = c->currnt.rcrce;
 1165                 opte1->currnt.uas   = c->currnt.uas;
 1166                 opte1->currnt.les   = c->currnt.les;
 1167                 opte1->currnt.es    = c->currnt.es;
 1168                 opte1->currnt.bes   = c->currnt.bes;
 1169                 opte1->currnt.ses   = c->currnt.ses;
 1170                 opte1->currnt.oofs  = c->currnt.oofs;
 1171                 opte1->currnt.css   = c->currnt.css;
 1172                 opte1->currnt.dm    = c->currnt.dm;
 1173 
 1174                 opte1->total.bpv    = c->total.bpv   + c->currnt.bpv;
 1175                 opte1->total.fse    = c->total.fse   + c->currnt.fse;
 1176                 opte1->total.crce   = c->total.crce  + c->currnt.crce;
 1177                 opte1->total.rcrce  = c->total.rcrce + c->currnt.rcrce;
 1178                 opte1->total.uas    = c->total.uas   + c->currnt.uas;
 1179                 opte1->total.les    = c->total.les   + c->currnt.les;
 1180                 opte1->total.es     = c->total.es    + c->currnt.es;
 1181                 opte1->total.bes    = c->total.bes   + c->currnt.bes;
 1182                 opte1->total.ses    = c->total.ses   + c->currnt.ses;
 1183                 opte1->total.oofs   = c->total.oofs  + c->currnt.oofs;
 1184                 opte1->total.css    = c->total.css   + c->currnt.css;
 1185                 opte1->total.dm     = c->total.dm    + c->currnt.dm;
 1186                 for (s=0; s<48; ++s) {
 1187                         opte1->interval[s].bpv   = c->interval[s].bpv;
 1188                         opte1->interval[s].fse   = c->interval[s].fse;
 1189                         opte1->interval[s].crce  = c->interval[s].crce;
 1190                         opte1->interval[s].rcrce = c->interval[s].rcrce;
 1191                         opte1->interval[s].uas   = c->interval[s].uas;
 1192                         opte1->interval[s].les   = c->interval[s].les;
 1193                         opte1->interval[s].es    = c->interval[s].es;
 1194                         opte1->interval[s].bes   = c->interval[s].bes;
 1195                         opte1->interval[s].ses   = c->interval[s].ses;
 1196                         opte1->interval[s].oofs  = c->interval[s].oofs;
 1197                         opte1->interval[s].css   = c->interval[s].css;
 1198                         opte1->interval[s].dm    = c->interval[s].dm;
 1199                 }
 1200                 return 0;
 1201 
 1202         case SERIAL_GETE3STAT:
 1203                 CP_DEBUG2 (d, ("ioctl: gete3stat\n"));
 1204                 if (c->type != T_E3 && c->type != T_T3 && c->type != T_STS1)
 1205                         return EINVAL;
 1206                 opte3 = (struct e3_statistics*) data;
 1207 
 1208                 opte3->status = c->e3status;
 1209                 opte3->cursec = (c->e3csec_5 * 2 + 1) / 10;
 1210                 opte3->totsec = c->e3tsec + opte3->cursec;
 1211 
 1212                 opte3->ccv = c->e3ccv;
 1213                 opte3->tcv = c->e3tcv + opte3->ccv;
 1214 
 1215                 for (s = 0; s < 48; ++s) {
 1216                         opte3->icv[s] = c->e3icv[s];
 1217                 }
 1218                 return 0;
 1219                 
 1220         case SERIAL_CLRSTAT:
 1221                 CP_DEBUG2 (d, ("ioctl: clrstat\n"));
 1222                 /* Only for superuser! */
 1223                 error = suser (td);
 1224                 if (error)
 1225                         return error;
 1226                 c->rintr    = 0;
 1227                 c->tintr    = 0;
 1228                 c->ibytes   = 0;
 1229                 c->obytes   = 0;
 1230                 c->ipkts    = 0;
 1231                 c->opkts    = 0;
 1232                 c->overrun  = 0;
 1233                 c->frame    = 0;
 1234                 c->crc      = 0;
 1235                 c->underrun = 0;
 1236                 bzero (&c->currnt, sizeof (c->currnt));
 1237                 bzero (&c->total, sizeof (c->total));
 1238                 bzero (c->interval, sizeof (c->interval));
 1239                 c->e3ccv    = 0;
 1240                 c->e3tcv    = 0;
 1241                 bzero (c->e3icv, sizeof (c->e3icv));
 1242                 return 0;
 1243 
 1244         case SERIAL_GETBAUD:
 1245                 CP_DEBUG2 (d, ("ioctl: getbaud\n"));
 1246                 *(long*)data = c->baud;
 1247                 return 0;
 1248 
 1249         case SERIAL_SETBAUD:
 1250                 CP_DEBUG2 (d, ("ioctl: setbaud\n"));
 1251                 /* Only for superuser! */
 1252                 error = suser (td);
 1253                 if (error)
 1254                         return error;
 1255                 s = splimp ();
 1256                 CP_LOCK (bd);
 1257                 cp_set_baud (c, *(long*)data);
 1258                 CP_UNLOCK (bd);
 1259                 splx (s);
 1260                 return 0;
 1261 
 1262         case SERIAL_GETLOOP:
 1263                 CP_DEBUG2 (d, ("ioctl: getloop\n"));
 1264                 *(int*)data = c->lloop;
 1265                 return 0;
 1266 
 1267         case SERIAL_SETLOOP:
 1268                 CP_DEBUG2 (d, ("ioctl: setloop\n"));
 1269                 /* Only for superuser! */
 1270                 error = suser (td);
 1271                 if (error)
 1272                         return error;
 1273                 s = splimp ();
 1274                 CP_LOCK (bd);
 1275                 cp_set_lloop (c, *(int*)data);
 1276                 CP_UNLOCK (bd);
 1277                 splx (s);
 1278                 return 0;
 1279 
 1280         case SERIAL_GETDPLL:
 1281                 CP_DEBUG2 (d, ("ioctl: getdpll\n"));
 1282                 if (c->type != T_SERIAL)
 1283                         return EINVAL;
 1284                 *(int*)data = c->dpll;
 1285                 return 0;
 1286 
 1287         case SERIAL_SETDPLL:
 1288                 CP_DEBUG2 (d, ("ioctl: setdpll\n"));
 1289                 /* Only for superuser! */
 1290                 error = suser (td);
 1291                 if (error)
 1292                         return error;
 1293                 if (c->type != T_SERIAL)
 1294                         return EINVAL;
 1295                 s = splimp ();
 1296                 CP_LOCK (bd);
 1297                 cp_set_dpll (c, *(int*)data);
 1298                 CP_UNLOCK (bd);
 1299                 splx (s);
 1300                 return 0;
 1301 
 1302         case SERIAL_GETNRZI:
 1303                 CP_DEBUG2 (d, ("ioctl: getnrzi\n"));
 1304                 if (c->type != T_SERIAL)
 1305                         return EINVAL;
 1306                 *(int*)data = c->nrzi;
 1307                 return 0;
 1308 
 1309         case SERIAL_SETNRZI:
 1310                 CP_DEBUG2 (d, ("ioctl: setnrzi\n"));
 1311                 /* Only for superuser! */
 1312                 error = suser (td);
 1313                 if (error)
 1314                         return error;
 1315                 if (c->type != T_SERIAL)
 1316                         return EINVAL;
 1317                 s = splimp ();
 1318                 CP_LOCK (bd);
 1319                 cp_set_nrzi (c, *(int*)data);
 1320                 CP_UNLOCK (bd);
 1321                 splx (s);
 1322                 return 0;
 1323 
 1324         case SERIAL_GETDEBUG:
 1325                 CP_DEBUG2 (d, ("ioctl: getdebug\n"));
 1326                 *(int*)data = d->chan->debug;
 1327                 return 0;
 1328 
 1329         case SERIAL_SETDEBUG:
 1330                 CP_DEBUG2 (d, ("ioctl: setdebug\n"));
 1331                 /* Only for superuser! */
 1332                 error = suser (td);
 1333                 if (error)
 1334                         return error;
 1335                 d->chan->debug = *(int*)data;
 1336 #ifndef NETGRAPH
 1337                 if (d->chan->debug)
 1338                         d->pp.pp_if.if_flags |= IFF_DEBUG;
 1339                 else
 1340                         d->pp.pp_if.if_flags &= ~IFF_DEBUG;
 1341 #endif
 1342                 return 0;
 1343 
 1344         case SERIAL_GETHIGAIN:
 1345                 CP_DEBUG2 (d, ("ioctl: gethigain\n"));
 1346                 if (c->type != T_E1)
 1347                         return EINVAL;
 1348                 *(int*)data = c->higain;
 1349                 return 0;
 1350 
 1351         case SERIAL_SETHIGAIN:
 1352                 CP_DEBUG2 (d, ("ioctl: sethigain\n"));
 1353                 /* Only for superuser! */
 1354                 error = suser (td);
 1355                 if (error)
 1356                         return error;
 1357                 if (c->type != T_E1)
 1358                         return EINVAL;
 1359                 s = splimp ();
 1360                 CP_LOCK (bd);
 1361                 cp_set_higain (c, *(int*)data);
 1362                 CP_UNLOCK (bd);
 1363                 splx (s);
 1364                 return 0;
 1365 
 1366         case SERIAL_GETPHONY:
 1367                 CP_DEBUG2 (d, ("ioctl: getphony\n"));
 1368                 if (c->type != T_E1)
 1369                         return EINVAL;
 1370                 *(int*)data = c->phony;
 1371                 return 0;
 1372 
 1373         case SERIAL_SETPHONY:
 1374                 CP_DEBUG2 (d, ("ioctl: setphony\n"));
 1375                 /* Only for superuser! */
 1376                 error = suser (td);
 1377                 if (error)
 1378                         return error;
 1379                 if (c->type != T_E1)
 1380                         return EINVAL;
 1381                 s = splimp ();
 1382                 CP_LOCK (bd);
 1383                 cp_set_phony (c, *(int*)data);
 1384                 CP_UNLOCK (bd);
 1385                 splx (s);
 1386                 return 0;
 1387 
 1388         case SERIAL_GETUNFRAM:
 1389                 CP_DEBUG2 (d, ("ioctl: getunfram\n"));
 1390                 if (c->type != T_E1)
 1391                         return EINVAL;
 1392                 *(int*)data = c->unfram;
 1393                 return 0;
 1394 
 1395         case SERIAL_SETUNFRAM:
 1396                 CP_DEBUG2 (d, ("ioctl: setunfram\n"));
 1397                 /* Only for superuser! */
 1398                 error = suser (td);
 1399                 if (error)
 1400                         return error;
 1401                 if (c->type != T_E1)
 1402                         return EINVAL;
 1403                 s = splimp ();
 1404                 CP_LOCK (bd);
 1405                 cp_set_unfram (c, *(int*)data);
 1406                 CP_UNLOCK (bd);
 1407                 splx (s);
 1408                 return 0;
 1409 
 1410         case SERIAL_GETSCRAMBLER:
 1411                 CP_DEBUG2 (d, ("ioctl: getscrambler\n"));
 1412                 if (c->type != T_G703 && !c->unfram)
 1413                         return EINVAL;
 1414                 *(int*)data = c->scrambler;
 1415                 return 0;
 1416 
 1417         case SERIAL_SETSCRAMBLER:
 1418                 CP_DEBUG2 (d, ("ioctl: setscrambler\n"));
 1419                 /* Only for superuser! */
 1420                 error = suser (td);
 1421                 if (error)
 1422                         return error;
 1423                 if (c->type != T_G703 && !c->unfram)
 1424                         return EINVAL;
 1425                 s = splimp ();
 1426                 CP_LOCK (bd);
 1427                 cp_set_scrambler (c, *(int*)data);
 1428                 CP_UNLOCK (bd);
 1429                 splx (s);
 1430                 return 0;
 1431 
 1432         case SERIAL_GETMONITOR:
 1433                 CP_DEBUG2 (d, ("ioctl: getmonitor\n"));
 1434                 if (c->type != T_E1 &&
 1435                     c->type != T_E3 &&
 1436                     c->type != T_T3 &&
 1437                     c->type != T_STS1)
 1438                         return EINVAL;
 1439                 *(int*)data = c->monitor;
 1440                 return 0;
 1441 
 1442         case SERIAL_SETMONITOR:
 1443                 CP_DEBUG2 (d, ("ioctl: setmonitor\n"));
 1444                 /* Only for superuser! */
 1445                 error = suser (td);
 1446                 if (error)
 1447                         return error;
 1448                 if (c->type != T_E1)
 1449                         return EINVAL;
 1450                 s = splimp ();
 1451                 CP_LOCK (bd);
 1452                 cp_set_monitor (c, *(int*)data);
 1453                 CP_UNLOCK (bd);
 1454                 splx (s);
 1455                 return 0;
 1456 
 1457         case SERIAL_GETUSE16:
 1458                 CP_DEBUG2 (d, ("ioctl: getuse16\n"));
 1459                 if (c->type != T_E1 || c->unfram)
 1460                         return EINVAL;
 1461                 *(int*)data = c->use16;
 1462                 return 0;
 1463 
 1464         case SERIAL_SETUSE16:
 1465                 CP_DEBUG2 (d, ("ioctl: setuse16\n"));
 1466                 /* Only for superuser! */
 1467                 error = suser (td);
 1468                 if (error)
 1469                         return error;
 1470                 if (c->type != T_E1)
 1471                         return EINVAL;
 1472                 s = splimp ();
 1473                 CP_LOCK (bd);
 1474                 cp_set_use16 (c, *(int*)data);
 1475                 CP_UNLOCK (bd);
 1476                 splx (s);
 1477                 return 0;
 1478 
 1479         case SERIAL_GETCRC4:
 1480                 CP_DEBUG2 (d, ("ioctl: getcrc4\n"));
 1481                 if (c->type != T_E1 || c->unfram)
 1482                         return EINVAL;
 1483                 *(int*)data = c->crc4;
 1484                 return 0;
 1485 
 1486         case SERIAL_SETCRC4:
 1487                 CP_DEBUG2 (d, ("ioctl: setcrc4\n"));
 1488                 /* Only for superuser! */
 1489                 error = suser (td);
 1490                 if (error)
 1491                         return error;
 1492                 if (c->type != T_E1)
 1493                         return EINVAL;
 1494                 s = splimp ();
 1495                 CP_LOCK (bd);
 1496                 cp_set_crc4 (c, *(int*)data);
 1497                 CP_UNLOCK (bd);
 1498                 splx (s);
 1499                 return 0;
 1500 
 1501         case SERIAL_GETCLK:
 1502                 CP_DEBUG2 (d, ("ioctl: getclk\n"));
 1503                 if (c->type != T_E1 &&
 1504                     c->type != T_G703 &&
 1505                     c->type != T_E3 &&
 1506                     c->type != T_T3 &&
 1507                     c->type != T_STS1)
 1508                         return EINVAL;
 1509                 switch (c->gsyn) {
 1510                 default:        *(int*)data = E1CLK_INTERNAL;           break;
 1511                 case GSYN_RCV:  *(int*)data = E1CLK_RECEIVE;            break;
 1512                 case GSYN_RCV0: *(int*)data = E1CLK_RECEIVE_CHAN0;      break;
 1513                 case GSYN_RCV1: *(int*)data = E1CLK_RECEIVE_CHAN1;      break;
 1514                 case GSYN_RCV2: *(int*)data = E1CLK_RECEIVE_CHAN2;      break;
 1515                 case GSYN_RCV3: *(int*)data = E1CLK_RECEIVE_CHAN3;      break;
 1516                 }
 1517                 return 0;
 1518 
 1519         case SERIAL_SETCLK:
 1520                 CP_DEBUG2 (d, ("ioctl: setclk\n"));
 1521                 /* Only for superuser! */
 1522                 error = suser (td);
 1523                 if (error)
 1524                         return error;
 1525                 if (c->type != T_E1 &&
 1526                     c->type != T_G703 &&
 1527                     c->type != T_E3 &&
 1528                     c->type != T_T3 &&
 1529                     c->type != T_STS1)
 1530                         return EINVAL;
 1531                 s = splimp ();
 1532                 CP_LOCK (bd);
 1533                 switch (*(int*)data) {
 1534                 default:                  cp_set_gsyn (c, GSYN_INT);  break;
 1535                 case E1CLK_RECEIVE:       cp_set_gsyn (c, GSYN_RCV);  break;
 1536                 case E1CLK_RECEIVE_CHAN0: cp_set_gsyn (c, GSYN_RCV0); break;
 1537                 case E1CLK_RECEIVE_CHAN1: cp_set_gsyn (c, GSYN_RCV1); break;
 1538                 case E1CLK_RECEIVE_CHAN2: cp_set_gsyn (c, GSYN_RCV2); break;
 1539                 case E1CLK_RECEIVE_CHAN3: cp_set_gsyn (c, GSYN_RCV3); break;
 1540                 }
 1541                 CP_UNLOCK (bd);
 1542                 splx (s);
 1543                 return 0;
 1544 
 1545         case SERIAL_GETTIMESLOTS:
 1546                 CP_DEBUG2 (d, ("ioctl: gettimeslots\n"));
 1547                 if ((c->type != T_E1 || c->unfram) && c->type != T_DATA)
 1548                         return EINVAL;
 1549                 *(u_long*)data = c->ts;
 1550                 return 0;
 1551 
 1552         case SERIAL_SETTIMESLOTS:
 1553                 CP_DEBUG2 (d, ("ioctl: settimeslots\n"));
 1554                 /* Only for superuser! */
 1555                 error = suser (td);
 1556                 if (error)
 1557                         return error;
 1558                 if ((c->type != T_E1 || c->unfram) && c->type != T_DATA)
 1559                         return EINVAL;
 1560                 s = splimp ();
 1561                 CP_LOCK (bd);
 1562                 cp_set_ts (c, *(u_long*)data);
 1563                 CP_UNLOCK (bd);
 1564                 splx (s);
 1565                 return 0;
 1566 
 1567         case SERIAL_GETINVCLK:
 1568                 CP_DEBUG2 (d, ("ioctl: getinvclk\n"));
 1569 #if 1
 1570                 return EINVAL;
 1571 #else
 1572                 if (c->type != T_SERIAL)
 1573                         return EINVAL;
 1574                 *(int*)data = c->invtxc;
 1575                 return 0;
 1576 #endif
 1577 
 1578         case SERIAL_SETINVCLK:
 1579                 CP_DEBUG2 (d, ("ioctl: setinvclk\n"));
 1580                 /* Only for superuser! */
 1581                 error = suser (td);
 1582                 if (error)
 1583                         return error;
 1584                 if (c->type != T_SERIAL)
 1585                         return EINVAL;
 1586                 s = splimp ();
 1587                 CP_LOCK (bd);
 1588                 cp_set_invtxc (c, *(int*)data);
 1589                 cp_set_invrxc (c, *(int*)data);
 1590                 CP_UNLOCK (bd);
 1591                 splx (s);
 1592                 return 0;
 1593 
 1594         case SERIAL_GETINVTCLK:
 1595                 CP_DEBUG2 (d, ("ioctl: getinvtclk\n"));
 1596                 if (c->type != T_SERIAL)
 1597                         return EINVAL;
 1598                 *(int*)data = c->invtxc;
 1599                 return 0;
 1600 
 1601         case SERIAL_SETINVTCLK:
 1602                 CP_DEBUG2 (d, ("ioctl: setinvtclk\n"));
 1603                 /* Only for superuser! */
 1604                 error = suser (td);
 1605                 if (error)
 1606                         return error;
 1607                 if (c->type != T_SERIAL)
 1608                         return EINVAL;
 1609                 s = splimp ();
 1610                 CP_LOCK (bd);
 1611                 cp_set_invtxc (c, *(int*)data);
 1612                 CP_UNLOCK (bd);
 1613                 splx (s);
 1614                 return 0;
 1615 
 1616         case SERIAL_GETINVRCLK:
 1617                 CP_DEBUG2 (d, ("ioctl: getinvrclk\n"));
 1618                 if (c->type != T_SERIAL)
 1619                         return EINVAL;
 1620                 *(int*)data = c->invrxc;
 1621                 return 0;
 1622 
 1623         case SERIAL_SETINVRCLK:
 1624                 CP_DEBUG2 (d, ("ioctl: setinvrclk\n"));
 1625                 /* Only for superuser! */
 1626                 error = suser (td);
 1627                 if (error)
 1628                         return error;
 1629                 if (c->type != T_SERIAL)
 1630                         return EINVAL;
 1631                 s = splimp ();
 1632                 CP_LOCK (bd);
 1633                 cp_set_invrxc (c, *(int*)data);
 1634                 CP_UNLOCK (bd);
 1635                 splx (s);
 1636                 return 0;
 1637 
 1638         case SERIAL_GETLEVEL:
 1639                 CP_DEBUG2 (d, ("ioctl: getlevel\n"));
 1640                 if (c->type != T_G703)
 1641                         return EINVAL;
 1642                 s = splimp ();
 1643                 CP_LOCK (bd);
 1644                 *(int*)data = cp_get_lq (c);
 1645                 CP_UNLOCK (bd);
 1646                 splx (s);
 1647                 return 0;
 1648 
 1649 #if 0
 1650         case SERIAL_RESET:
 1651                 CP_DEBUG2 (d, ("ioctl: reset\n"));
 1652                 /* Only for superuser! */
 1653                 error = suser (td);
 1654                 if (error)
 1655                         return error;
 1656                 s = splimp ();
 1657                 CP_LOCK (bd);
 1658                 cp_reset (c->board, 0, 0);
 1659                 CP_UNLOCK (bd);
 1660                 splx (s);
 1661                 return 0;
 1662 
 1663         case SERIAL_HARDRESET:
 1664                 CP_DEBUG2 (d, ("ioctl: hardreset\n"));
 1665                 /* Only for superuser! */
 1666                 error = suser (td);
 1667                 if (error)
 1668                         return error;
 1669                 s = splimp ();
 1670                 CP_LOCK (bd);
 1671                 /* hard_reset (c->board); */
 1672                 CP_UNLOCK (bd);
 1673                 splx (s);
 1674                 return 0;
 1675 #endif
 1676 
 1677         case SERIAL_GETCABLE:
 1678                 CP_DEBUG2 (d, ("ioctl: getcable\n"));
 1679                 if (c->type != T_SERIAL)
 1680                         return EINVAL;
 1681                 s = splimp ();
 1682                 CP_LOCK (bd);
 1683                 *(int*)data = cp_get_cable (c);
 1684                 CP_UNLOCK (bd);
 1685                 splx (s);
 1686                 return 0;
 1687 
 1688         case SERIAL_GETDIR:
 1689                 CP_DEBUG2 (d, ("ioctl: getdir\n"));
 1690                 if (c->type != T_E1 && c->type != T_DATA)
 1691                         return EINVAL;
 1692                 *(int*)data = c->dir;
 1693                 return 0;
 1694 
 1695         case SERIAL_SETDIR:
 1696                 CP_DEBUG2 (d, ("ioctl: setdir\n"));
 1697                 /* Only for superuser! */
 1698                 error = suser (td);
 1699                 if (error)
 1700                         return error;
 1701                 s = splimp ();
 1702                 CP_LOCK (bd);
 1703                 cp_set_dir (c, *(int*)data);
 1704                 CP_UNLOCK (bd);
 1705                 splx (s);
 1706                 return 0;
 1707 
 1708         case SERIAL_GETRLOOP:
 1709                 CP_DEBUG2 (d, ("ioctl: getrloop\n"));
 1710                 if (c->type != T_G703 &&
 1711                     c->type != T_E3 &&
 1712                     c->type != T_T3 &&
 1713                     c->type != T_STS1)
 1714                         return EINVAL;
 1715                 *(int*)data = cp_get_rloop (c);
 1716                 return 0;
 1717 
 1718         case SERIAL_SETRLOOP:
 1719                 CP_DEBUG2 (d, ("ioctl: setloop\n"));
 1720                 if (c->type != T_E3 && c->type != T_T3 && c->type != T_STS1)
 1721                         return EINVAL;
 1722                 /* Only for superuser! */
 1723                 error = suser (td);
 1724                 if (error)
 1725                         return error;
 1726                 s = splimp ();
 1727                 CP_LOCK (bd);
 1728                 cp_set_rloop (c, *(int*)data);
 1729                 CP_UNLOCK (bd);
 1730                 splx (s);
 1731                 return 0;
 1732 
 1733         case SERIAL_GETCABLEN:
 1734                 CP_DEBUG2 (d, ("ioctl: getcablen\n"));
 1735                 if (c->type != T_T3 && c->type != T_STS1)
 1736                         return EINVAL;
 1737                 *(int*)data = c->cablen;
 1738                 return 0;
 1739 
 1740         case SERIAL_SETCABLEN:
 1741                 CP_DEBUG2 (d, ("ioctl: setloop\n"));
 1742                 if (c->type != T_T3 && c->type != T_STS1)
 1743                         return EINVAL;
 1744                 /* Only for superuser! */
 1745                 error = suser (td);
 1746                 if (error)
 1747                         return error;
 1748                 s = splimp ();
 1749                 CP_LOCK (bd);
 1750                 cp_set_cablen (c, *(int*)data);
 1751                 CP_UNLOCK (bd);
 1752                 splx (s);
 1753                 return 0;
 1754 
 1755         case TIOCSDTR:  /* Set DTR */
 1756                 s = splimp ();
 1757                 CP_LOCK (bd);
 1758                 cp_set_dtr (c, 1);
 1759                 CP_UNLOCK (bd);
 1760                 splx (s);
 1761                 return 0;
 1762 
 1763         case TIOCCDTR:  /* Clear DTR */
 1764                 s = splimp ();
 1765                 CP_LOCK (bd);
 1766                 cp_set_dtr (c, 0);
 1767                 CP_UNLOCK (bd);
 1768                 splx (s);
 1769                 return 0;
 1770 
 1771         case TIOCMSET:  /* Set DTR/RTS */
 1772                 s = splimp ();
 1773                 CP_LOCK (bd);
 1774                 cp_set_dtr (c, (*(int*)data & TIOCM_DTR) ? 1 : 0);
 1775                 cp_set_rts (c, (*(int*)data & TIOCM_RTS) ? 1 : 0);
 1776                 CP_UNLOCK (bd);
 1777                 splx (s);
 1778                 return 0;
 1779 
 1780         case TIOCMBIS:  /* Add DTR/RTS */
 1781                 s = splimp ();
 1782                 CP_LOCK (bd);
 1783                 if (*(int*)data & TIOCM_DTR) cp_set_dtr (c, 1);
 1784                 if (*(int*)data & TIOCM_RTS) cp_set_rts (c, 1);
 1785                 CP_UNLOCK (bd);
 1786                 splx (s);
 1787                 return 0;
 1788 
 1789         case TIOCMBIC:  /* Clear DTR/RTS */
 1790                 s = splimp ();
 1791                 CP_LOCK (bd);
 1792                 if (*(int*)data & TIOCM_DTR) cp_set_dtr (c, 0);
 1793                 if (*(int*)data & TIOCM_RTS) cp_set_rts (c, 0);
 1794                 CP_UNLOCK (bd);
 1795                 splx (s);
 1796                 return 0;
 1797 
 1798         case TIOCMGET:  /* Get modem status */
 1799                 *(int*)data = cp_modem_status (c);
 1800                 return 0;
 1801         }
 1802         return ENOTTY;
 1803 }
 1804 
 1805 static struct cdevsw cp_cdevsw = {
 1806         .d_version  = D_VERSION,
 1807         .d_open     = cp_open,
 1808         .d_close    = cp_close,
 1809         .d_ioctl    = cp_ioctl,
 1810         .d_name     = "cp",
 1811         .d_maj      = CDEV_MAJOR,
 1812         .d_flags    = D_NEEDGIANT,
 1813 };
 1814 
 1815 #ifdef NETGRAPH
 1816 static int ng_cp_constructor (node_p node)
 1817 {
 1818         drv_t *d = NG_NODE_PRIVATE (node);
 1819         CP_DEBUG (d, ("Constructor\n"));
 1820         return EINVAL;
 1821 }
 1822 
 1823 static int ng_cp_newhook (node_p node, hook_p hook, const char *name)
 1824 {
 1825         int s;
 1826         drv_t *d = NG_NODE_PRIVATE (node);
 1827         bdrv_t *bd = d->board->sys;
 1828 
 1829         CP_DEBUG (d, ("Newhook\n"));
 1830         /* Attach debug hook */
 1831         if (strcmp (name, NG_CP_HOOK_DEBUG) == 0) {
 1832                 NG_HOOK_SET_PRIVATE (hook, NULL);
 1833                 d->debug_hook = hook;
 1834                 return 0;
 1835         }
 1836 
 1837         /* Check for raw hook */
 1838         if (strcmp (name, NG_CP_HOOK_RAW) != 0)
 1839                 return EINVAL;
 1840 
 1841         NG_HOOK_SET_PRIVATE (hook, d);
 1842         d->hook = hook;
 1843         s = splimp ();
 1844         CP_LOCK (bd);
 1845         cp_up (d);
 1846         CP_UNLOCK (bd);
 1847         splx (s);
 1848         return 0;
 1849 }
 1850 
 1851 static char *format_timeslots (u_long s)
 1852 {
 1853         static char buf [100];
 1854         char *p = buf;
 1855         int i;
 1856 
 1857         for (i=1; i<32; ++i)
 1858                 if ((s >> i) & 1) {
 1859                         int prev = (i > 1)  & (s >> (i-1));
 1860                         int next = (i < 31) & (s >> (i+1));
 1861 
 1862                         if (prev) {
 1863                                 if (next)
 1864                                         continue;
 1865                                 *p++ = '-';
 1866                         } else if (p > buf)
 1867                                 *p++ = ',';
 1868 
 1869                         if (i >= 10)
 1870                                 *p++ = '' + i / 10;
 1871                         *p++ = '' + i % 10;
 1872                 }
 1873         *p = 0;
 1874         return buf;
 1875 }
 1876 
 1877 static int print_modems (char *s, cp_chan_t *c, int need_header)
 1878 {
 1879         int status = cp_modem_status (c);
 1880         int length = 0;
 1881 
 1882         if (need_header)
 1883                 length += sprintf (s + length, "  LE   DTR  DSR  RTS  CTS  CD\n");
 1884         length += sprintf (s + length, "%4s %4s %4s %4s %4s %4s\n",
 1885                 status & TIOCM_LE  ? "On" : "-",
 1886                 status & TIOCM_DTR ? "On" : "-",
 1887                 status & TIOCM_DSR ? "On" : "-",
 1888                 status & TIOCM_RTS ? "On" : "-",
 1889                 status & TIOCM_CTS ? "On" : "-",
 1890                 status & TIOCM_CD  ? "On" : "-");
 1891         return length;
 1892 }
 1893 
 1894 static int print_stats (char *s, cp_chan_t *c, int need_header)
 1895 {
 1896         int length = 0;
 1897 
 1898         if (need_header)
 1899                 length += sprintf (s + length, "  Rintr   Tintr   Mintr   Ibytes   Ipkts   Ierrs   Obytes   Opkts   Oerrs\n");
 1900         length += sprintf (s + length, "%7ld %7ld %7ld %8lu %7ld %7ld %8lu %7ld %7ld\n",
 1901                 c->rintr, c->tintr, 0l, (unsigned long) c->ibytes,
 1902                 c->ipkts, c->overrun + c->frame + c->crc,
 1903                 (unsigned long) c->obytes, c->opkts, c->underrun);
 1904         return length;
 1905 }
 1906 
 1907 static char *format_e1_status (u_char status)
 1908 {
 1909         static char buf [80];
 1910 
 1911         if (status & E1_NOALARM)
 1912                 return "Ok";
 1913         buf[0] = 0;
 1914         if (status & E1_LOS)     strcat (buf, ",LOS");
 1915         if (status & E1_AIS)     strcat (buf, ",AIS");
 1916         if (status & E1_LOF)     strcat (buf, ",LOF");
 1917         if (status & E1_LOMF)    strcat (buf, ",LOMF");
 1918         if (status & E1_FARLOF)  strcat (buf, ",FARLOF");
 1919         if (status & E1_AIS16)   strcat (buf, ",AIS16");
 1920         if (status & E1_FARLOMF) strcat (buf, ",FARLOMF");
 1921         if (status & E1_TSTREQ)  strcat (buf, ",TSTREQ");
 1922         if (status & E1_TSTERR)  strcat (buf, ",TSTERR");
 1923         if (buf[0] == ',')
 1924                 return buf+1;
 1925         return "Unknown";
 1926 }
 1927 
 1928 static int print_frac (char *s, int leftalign, u_long numerator, u_long divider)
 1929 {
 1930         int n, length = 0;
 1931 
 1932         if (numerator < 1 || divider < 1) {
 1933                 length += sprintf (s+length, leftalign ? "/-   " : "    -");
 1934                 return length;
 1935         }
 1936         n = (int) (0.5 + 1000.0 * numerator / divider);
 1937         if (n < 1000) {
 1938                 length += sprintf (s+length, leftalign ? "/.%-3d" : " .%03d", n);
 1939                 return length;
 1940         }
 1941         *(s + length) = leftalign ? '/' : ' ';
 1942         length ++;
 1943 
 1944         if      (n >= 1000000) n = (n+500) / 1000 * 1000;
 1945         else if (n >= 100000)  n = (n+50)  / 100 * 100;
 1946         else if (n >= 10000)   n = (n+5)   / 10 * 10;
 1947 
 1948         switch (n) {
 1949         case 1000:    length += printf (s+length, ".999"); return length;
 1950         case 10000:   n = 9990;   break;
 1951         case 100000:  n = 99900;  break;
 1952         case 1000000: n = 999000; break;
 1953         }
 1954         if (n < 10000)        length += sprintf (s+length, "%d.%d", n/1000, n/10%100);
 1955         else if (n < 100000)  length += sprintf (s+length, "%d.%d", n/1000, n/100%10);
 1956         else if (n < 1000000) length += sprintf (s+length, "%d.", n/1000);
 1957         else                  length += sprintf (s+length, "%d", n/1000);
 1958 
 1959         return length;
 1960 }
 1961 
 1962 static int print_e1_stats (char *s, cp_chan_t *c)
 1963 {
 1964         struct e1_counters total;
 1965         u_long totsec;
 1966         int length = 0;
 1967 
 1968         totsec          = c->totsec + c->cursec;
 1969         total.bpv       = c->total.bpv   + c->currnt.bpv;
 1970         total.fse       = c->total.fse   + c->currnt.fse;
 1971         total.crce      = c->total.crce  + c->currnt.crce;
 1972         total.rcrce     = c->total.rcrce + c->currnt.rcrce;
 1973         total.uas       = c->total.uas   + c->currnt.uas;
 1974         total.les       = c->total.les   + c->currnt.les;
 1975         total.es        = c->total.es    + c->currnt.es;
 1976         total.bes       = c->total.bes   + c->currnt.bes;
 1977         total.ses       = c->total.ses   + c->currnt.ses;
 1978         total.oofs      = c->total.oofs  + c->currnt.oofs;
 1979         total.css       = c->total.css   + c->currnt.css;
 1980         total.dm        = c->total.dm    + c->currnt.dm;
 1981 
 1982         length += sprintf (s + length, " Unav/Degr  Bpv/Fsyn  CRC/RCRC  Err/Lerr  Sev/Bur   Oof/Slp  Status\n");
 1983 
 1984         /* Unavailable seconds, degraded minutes */
 1985         length += print_frac (s + length, 0, c->currnt.uas, c->cursec);
 1986         length += print_frac (s + length, 1, 60 * c->currnt.dm, c->cursec);
 1987 
 1988         /* Bipolar violations, frame sync errors */
 1989         length += print_frac (s + length, 0, c->currnt.bpv, c->cursec);
 1990         length += print_frac (s + length, 1, c->currnt.fse, c->cursec);
 1991 
 1992         /* CRC errors, remote CRC errors (E-bit) */
 1993         length += print_frac (s + length, 0, c->currnt.crce, c->cursec);
 1994         length += print_frac (s + length, 1, c->currnt.rcrce, c->cursec);
 1995 
 1996         /* Errored seconds, line errored seconds */
 1997         length += print_frac (s + length, 0, c->currnt.es, c->cursec);
 1998         length += print_frac (s + length, 1, c->currnt.les, c->cursec);
 1999 
 2000         /* Severely errored seconds, burst errored seconds */
 2001         length += print_frac (s + length, 0, c->currnt.ses, c->cursec);
 2002         length += print_frac (s + length, 1, c->currnt.bes, c->cursec);
 2003 
 2004         /* Out of frame seconds, controlled slip seconds */
 2005         length += print_frac (s + length, 0, c->currnt.oofs, c->cursec);
 2006         length += print_frac (s + length, 1, c->currnt.css, c->cursec);
 2007 
 2008         length += sprintf (s + length, " %s\n", format_e1_status (c->status));
 2009 
 2010         /* Print total statistics. */
 2011         length += print_frac (s + length, 0, total.uas, totsec);
 2012         length += print_frac (s + length, 1, 60 * total.dm, totsec);
 2013 
 2014         length += print_frac (s + length, 0, total.bpv, totsec);
 2015         length += print_frac (s + length, 1, total.fse, totsec);
 2016 
 2017         length += print_frac (s + length, 0, total.crce, totsec);
 2018         length += print_frac (s + length, 1, total.rcrce, totsec);
 2019 
 2020         length += print_frac (s + length, 0, total.es, totsec);
 2021         length += print_frac (s + length, 1, total.les, totsec);
 2022 
 2023         length += print_frac (s + length, 0, total.ses, totsec);
 2024         length += print_frac (s + length, 1, total.bes, totsec);
 2025 
 2026         length += print_frac (s + length, 0, total.oofs, totsec);
 2027         length += print_frac (s + length, 1, total.css, totsec);
 2028 
 2029         length += sprintf (s + length, " -- Total\n");
 2030         return length;
 2031 }
 2032 
 2033 static int print_chan (char *s, cp_chan_t *c)
 2034 {
 2035         drv_t *d = c->sys;
 2036         bdrv_t *bd = d->board->sys;
 2037         int length = 0;
 2038 
 2039         length += sprintf (s + length, "cp%d", c->board->num * NCHAN + c->num);
 2040         if (d->chan->debug)
 2041                 length += sprintf (s + length, " debug=%d", d->chan->debug);
 2042 
 2043         if (c->board->mux) {
 2044                 length += sprintf (s + length, " cfg=C");
 2045         } else {
 2046                 length += sprintf (s + length, " cfg=A");
 2047         }
 2048 
 2049         if (c->baud)
 2050                 length += sprintf (s + length, " %ld", c->baud);
 2051         else
 2052                 length += sprintf (s + length, " extclock");
 2053 
 2054         if (c->type == T_E1 || c->type == T_G703)
 2055                 switch (c->gsyn) {
 2056                 case GSYN_INT   : length += sprintf (s + length, " syn=int");     break;
 2057                 case GSYN_RCV   : length += sprintf (s + length, " syn=rcv");     break;
 2058                 case GSYN_RCV0  : length += sprintf (s + length, " syn=rcv0");    break;
 2059                 case GSYN_RCV1  : length += sprintf (s + length, " syn=rcv1");    break;
 2060                 case GSYN_RCV2  : length += sprintf (s + length, " syn=rcv2");    break;
 2061                 case GSYN_RCV3  : length += sprintf (s + length, " syn=rcv3");    break;
 2062                 }
 2063         if (c->type == T_SERIAL) {
 2064                 length += sprintf (s + length, " dpll=%s",   c->dpll   ? "on" : "off");
 2065                 length += sprintf (s + length, " nrzi=%s",   c->nrzi   ? "on" : "off");
 2066                 length += sprintf (s + length, " invclk=%s", c->invtxc ? "on" : "off");
 2067         }
 2068         if (c->type == T_E1)
 2069                 length += sprintf (s + length, " higain=%s", c->higain ? "on" : "off");
 2070 
 2071         length += sprintf (s + length, " loop=%s", c->lloop ? "on" : "off");
 2072 
 2073         if (c->type == T_E1)
 2074                 length += sprintf (s + length, " ts=%s", format_timeslots (c->ts));
 2075         if (c->type == T_G703) {
 2076                 int lq, x;
 2077 
 2078                 x = splimp ();
 2079                 CP_LOCK (bd);
 2080                 lq = cp_get_lq (c);
 2081                 CP_UNLOCK (bd);
 2082                 splx (x);
 2083                 length += sprintf (s + length, " (level=-%.1fdB)", lq / 10.0);
 2084         }
 2085         length += sprintf (s + length, "\n");
 2086         return length;
 2087 }
 2088 
 2089 static int ng_cp_rcvmsg (node_p node, item_p item, hook_p lasthook)
 2090 {
 2091         drv_t *d = NG_NODE_PRIVATE (node);
 2092         struct ng_mesg *msg;
 2093         struct ng_mesg *resp = NULL;
 2094         int error = 0;
 2095 
 2096         CP_DEBUG (d, ("Rcvmsg\n"));
 2097         NGI_GET_MSG (item, msg);
 2098         switch (msg->header.typecookie) {
 2099         default:
 2100                 error = EINVAL;
 2101                 break;
 2102 
 2103         case NGM_CP_COOKIE:
 2104                 printf ("Not implemented yet\n");
 2105                 error = EINVAL;
 2106                 break;
 2107 
 2108         case NGM_GENERIC_COOKIE:
 2109                 switch (msg->header.cmd) {
 2110                 default:
 2111                         error = EINVAL;
 2112                         break;
 2113 
 2114                 case NGM_TEXT_STATUS: {
 2115                         char *s;
 2116                         int l = 0;
 2117                         int dl = sizeof (struct ng_mesg) + 730;
 2118 
 2119                         NG_MKRESPONSE (resp, msg, dl, M_NOWAIT);
 2120                         if (! resp) {
 2121                                 error = ENOMEM;
 2122                                 break;
 2123                         }
 2124                         s = (resp)->data;
 2125                         if (d) {
 2126                         l += print_chan (s + l, d->chan);
 2127                         l += print_stats (s + l, d->chan, 1);
 2128                         l += print_modems (s + l, d->chan, 1);
 2129                         l += print_e1_stats (s + l, d->chan);
 2130                         } else
 2131                                 l += sprintf (s + l, "Error: node not connect to channel");
 2132                         strncpy ((resp)->header.cmdstr, "status", NG_CMDSTRLEN);
 2133                         }
 2134                         break;
 2135                 }
 2136                 break;
 2137         }
 2138         NG_RESPOND_MSG (error, node, item, resp);
 2139         NG_FREE_MSG (msg);
 2140         return error;
 2141 }
 2142 
 2143 static int ng_cp_rcvdata (hook_p hook, item_p item)
 2144 {
 2145         drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE(hook));
 2146         struct mbuf *m;
 2147         struct ng_tag_prio *ptag;
 2148         bdrv_t *bd = d->board->sys;
 2149         struct ifqueue *q;
 2150         int s;
 2151 
 2152         CP_DEBUG2 (d, ("Rcvdata\n"));
 2153         NGI_GET_M (item, m);
 2154         NG_FREE_ITEM (item);
 2155         if (! NG_HOOK_PRIVATE (hook) || ! d) {
 2156                 NG_FREE_M (m);
 2157                 return ENETDOWN;
 2158         }
 2159 
 2160         /* Check for high priority data */
 2161         if ((ptag = (struct ng_tag_prio *)m_tag_locate(m, NGM_GENERIC_COOKIE,
 2162             NG_TAG_PRIO, NULL)) != NULL && (ptag->priority > NG_PRIO_CUTOFF) )
 2163                 q = &d->hi_queue;
 2164         else
 2165                 q = &d->queue;
 2166 
 2167         s = splimp ();
 2168         CP_LOCK (bd);
 2169         IF_LOCK (q);
 2170         if (_IF_QFULL (q)) {
 2171                 _IF_DROP (q);
 2172                 IF_UNLOCK (q);
 2173                 CP_UNLOCK (bd);
 2174                 splx (s);
 2175                 NG_FREE_M (m);
 2176                 return ENOBUFS;
 2177         }
 2178         _IF_ENQUEUE (q, m);
 2179         IF_UNLOCK (q);
 2180         cp_start (d);
 2181         CP_UNLOCK (bd);
 2182         splx (s);
 2183         return 0;
 2184 }
 2185 
 2186 static int ng_cp_rmnode (node_p node)
 2187 {
 2188         drv_t *d = NG_NODE_PRIVATE (node);
 2189 
 2190         CP_DEBUG (d, ("Rmnode\n"));
 2191         if (d && d->running) {
 2192                 bdrv_t *bd = d->board->sys;
 2193                 int s = splimp ();
 2194                 CP_LOCK (bd);
 2195                 cp_down (d);
 2196                 CP_UNLOCK (bd);
 2197                 splx (s);
 2198         }
 2199 #ifdef  KLD_MODULE
 2200         if (node->nd_flags & NGF_REALLY_DIE) {
 2201                 NG_NODE_SET_PRIVATE (node, NULL);
 2202                 NG_NODE_UNREF (node);
 2203         }
 2204         NG_NODE_REVIVE(node);           /* Persistant node */
 2205 #endif
 2206         return 0;
 2207 }
 2208 
 2209 static void ng_cp_watchdog (void *arg)
 2210 {
 2211         drv_t *d = arg;
 2212 
 2213         if (d) {
 2214                 if (d->timeout == 1)
 2215                         cp_watchdog (d);
 2216                 if (d->timeout)
 2217                         d->timeout--;
 2218                 callout_reset (&d->timeout_handle, hz, ng_cp_watchdog, d);
 2219         }
 2220 }
 2221 
 2222 static int ng_cp_connect (hook_p hook)
 2223 {
 2224         drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
 2225 
 2226         if (d) {
 2227                 CP_DEBUG (d, ("Connect\n"));
 2228                 callout_reset (&d->timeout_handle, hz, ng_cp_watchdog, d);
 2229         }
 2230         
 2231         return 0;
 2232 }
 2233 
 2234 static int ng_cp_disconnect (hook_p hook)
 2235 {
 2236         drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
 2237 
 2238         if (d) {
 2239                 CP_DEBUG (d, ("Disconnect\n"));
 2240                 if (NG_HOOK_PRIVATE (hook))
 2241                 {
 2242                         bdrv_t *bd = d->board->sys;
 2243                         int s = splimp ();
 2244                         CP_LOCK (bd);
 2245                         cp_down (d);
 2246                         CP_UNLOCK (bd);
 2247                         splx (s);
 2248                 }
 2249                 /* If we were wait it than it reasserted now, just stop it. */
 2250                 if (!callout_drain (&d->timeout_handle))
 2251                         callout_stop (&d->timeout_handle);
 2252         }
 2253         return 0;
 2254 }
 2255 #endif
 2256 
 2257 static int cp_modevent (module_t mod, int type, void *unused)
 2258 {
 2259         static int load_count = 0;
 2260 
 2261         if (!debug_mpsafenet && cp_mpsafenet) {
 2262                 printf ("WORNING! Network stack is not MPSAFE. "
 2263                         "Turning off debug.cp.mpsafenet.\n");
 2264                 cp_mpsafenet = 0;
 2265         }
 2266         if (cp_mpsafenet)
 2267                 cp_cdevsw.d_flags &= ~D_NEEDGIANT;
 2268 
 2269         switch (type) {
 2270         case MOD_LOAD:
 2271 #ifdef NETGRAPH
 2272                 if (ng_newtype (&typestruct))
 2273                         printf ("Failed to register ng_cp\n");
 2274 #endif
 2275                 ++load_count;
 2276                 callout_init (&timeout_handle, cp_mpsafenet?CALLOUT_MPSAFE:0);
 2277                 callout_reset (&timeout_handle, hz*5, cp_timeout, 0);
 2278                 break;
 2279         case MOD_UNLOAD:
 2280                 if (load_count == 1) {
 2281                         printf ("Removing device entry for Tau-PCI\n");
 2282 #ifdef NETGRAPH
 2283                         ng_rmtype (&typestruct);
 2284 #endif                  
 2285                 }
 2286                 /* If we were wait it than it reasserted now, just stop it.
 2287                  * Actually we shouldn't get this condition. But code could be
 2288                  * changed in the future, so just be a litle paranoid.
 2289                  */
 2290                 if (!callout_drain (&timeout_handle))
 2291                         callout_stop (&timeout_handle);
 2292                 --load_count;
 2293                 break;
 2294         case MOD_SHUTDOWN:
 2295                 break;
 2296         }
 2297         return 0;
 2298 }
 2299 
 2300 #ifdef NETGRAPH
 2301 static struct ng_type typestruct = {
 2302         .version        = NG_ABI_VERSION,
 2303         .name           = NG_CP_NODE_TYPE,
 2304         .constructor    = ng_cp_constructor,
 2305         .rcvmsg         = ng_cp_rcvmsg,
 2306         .shutdown       = ng_cp_rmnode,
 2307         .newhook        = ng_cp_newhook,
 2308         .connect        = ng_cp_connect,
 2309         .rcvdata        = ng_cp_rcvdata,
 2310         .disconnect     = ng_cp_disconnect,
 2311 };
 2312 #endif /*NETGRAPH*/
 2313 
 2314 #ifdef NETGRAPH
 2315 MODULE_DEPEND (ng_cp, netgraph, NG_ABI_VERSION, NG_ABI_VERSION, NG_ABI_VERSION);
 2316 #else
 2317 MODULE_DEPEND (cp, sppp, 1, 1, 1);
 2318 #endif
 2319 DRIVER_MODULE (cp, pci, cp_driver, cp_devclass, cp_modevent, NULL);
 2320 MODULE_VERSION (cp, 1);

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