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("$FreeBSD$");
   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/priv.h>
   37 #include <sys/socket.h>
   38 #include <sys/sockio.h>
   39 #include <sys/sysctl.h>
   40 #include <sys/tty.h>
   41 #include <sys/bus.h>
   42 #include <vm/vm.h>
   43 #include <vm/pmap.h>
   44 #include <net/if.h>
   45 #include <dev/pci/pcivar.h>
   46 #include <dev/pci/pcireg.h>
   47 #include <machine/bus.h>
   48 #include <sys/rman.h>
   49 #include "opt_ng_cronyx.h"
   50 #ifdef NETGRAPH_CRONYX
   51 #   include "opt_netgraph.h"
   52 #   ifndef NETGRAPH
   53 #       error #option   NETGRAPH missed from configuration
   54 #   endif
   55 #   include <netgraph/ng_message.h>
   56 #   include <netgraph/netgraph.h>
   57 #   include <dev/cp/ng_cp.h>
   58 #else
   59 #   include <net/if_sppp.h>
   60 #   include <net/if_types.h>
   61 #include <dev/pci/pcivar.h>
   62 #   define PP_CISCO IFF_LINK2
   63 #   include <net/bpf.h>
   64 #endif
   65 #include <dev/cx/machdep.h>
   66 #include <dev/cp/cpddk.h>
   67 #include <machine/cserial.h>
   68 #include <machine/resource.h>
   69 #include <machine/pmap.h>
   70 
   71 /* If we don't have Cronyx's sppp version, we don't have fr support via sppp */
   72 #ifndef PP_FR
   73 #define PP_FR 0
   74 #endif
   75 
   76 #define CP_DEBUG(d,s)   ({if (d->chan->debug) {\
   77                                 printf ("%s: ", d->name); printf s;}})
   78 #define CP_DEBUG2(d,s)  ({if (d->chan->debug>1) {\
   79                                 printf ("%s: ", d->name); printf s;}})
   80 #define CP_LOCK_NAME    "cpX"
   81 
   82 #define CP_LOCK(_bd)            mtx_lock (&(_bd)->cp_mtx)
   83 #define CP_UNLOCK(_bd)          mtx_unlock (&(_bd)->cp_mtx)
   84 #define CP_LOCK_ASSERT(_bd)     mtx_assert (&(_bd)->cp_mtx, MA_OWNED)
   85 
   86 static  int cp_probe            __P((device_t));
   87 static  int cp_attach           __P((device_t));
   88 static  int cp_detach           __P((device_t));
   89 
   90 static  device_method_t cp_methods[] = {
   91         /* Device interface */
   92         DEVMETHOD(device_probe,         cp_probe),
   93         DEVMETHOD(device_attach,        cp_attach),
   94         DEVMETHOD(device_detach,        cp_detach),
   95 
   96         {0, 0}
   97 };
   98 
   99 typedef struct _cp_dma_mem_t {
  100         unsigned long   phys;
  101         void            *virt;
  102         size_t          size;
  103         bus_dma_tag_t   dmat;
  104         bus_dmamap_t    mapp;
  105 } cp_dma_mem_t;
  106 
  107 typedef struct _drv_t {
  108         char    name [8];
  109         int     running;
  110         cp_chan_t       *chan;
  111         cp_board_t      *board;
  112         cp_dma_mem_t    dmamem;
  113 #ifdef NETGRAPH
  114         char    nodename [NG_NODESIZE];
  115         hook_p  hook;
  116         hook_p  debug_hook;
  117         node_p  node;
  118         struct  ifqueue queue;
  119         struct  ifqueue hi_queue;
  120         short   timeout;
  121         struct  callout timeout_handle;
  122 #else
  123         struct  ifqueue queue;
  124         struct  ifnet *ifp;
  125 #endif
  126         struct  cdev *devt;
  127 } drv_t;
  128 
  129 typedef struct _bdrv_t {
  130         cp_board_t      *board;
  131         struct resource *cp_res;
  132         struct resource *cp_irq;
  133         void            *cp_intrhand;
  134         cp_dma_mem_t    dmamem;
  135         drv_t           channel [NCHAN];
  136         struct mtx      cp_mtx;
  137 } bdrv_t;
  138 
  139 static  driver_t cp_driver = {
  140         "cp",
  141         cp_methods,
  142         sizeof(bdrv_t),
  143 };
  144 
  145 static  devclass_t cp_devclass;
  146 
  147 static void cp_receive (cp_chan_t *c, unsigned char *data, int len);
  148 static void cp_transmit (cp_chan_t *c, void *attachment, int len);
  149 static void cp_error (cp_chan_t *c, int data);
  150 static void cp_up (drv_t *d);
  151 static void cp_start (drv_t *d);
  152 static void cp_down (drv_t *d);
  153 static void cp_watchdog (drv_t *d);
  154 #ifdef NETGRAPH
  155 extern struct ng_type typestruct;
  156 #else
  157 static void cp_ifstart (struct ifnet *ifp);
  158 static void cp_tlf (struct sppp *sp);
  159 static void cp_tls (struct sppp *sp);
  160 static void cp_ifwatchdog (struct ifnet *ifp);
  161 static int cp_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data);
  162 static void cp_initialize (void *softc);
  163 #endif
  164 
  165 static cp_board_t *adapter [NBRD];
  166 static drv_t *channel [NBRD*NCHAN];
  167 static struct callout led_timo [NBRD];
  168 static struct callout timeout_handle;
  169 
  170 static int cp_destroy = 0;
  171 
  172 static int cp_open (struct cdev *dev, int oflags, int devtype, struct thread *td);
  173 static int cp_close (struct cdev *dev, int fflag, int devtype, struct thread *td);
  174 static int cp_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td);
  175 static struct cdevsw cp_cdevsw = {
  176         .d_version  = D_VERSION,
  177         .d_open     = cp_open,
  178         .d_close    = cp_close,
  179         .d_ioctl    = cp_ioctl,
  180         .d_name     = "cp",
  181 };
  182 
  183 /*
  184  * Print the mbuf chain, for debug purposes only.
  185  */
  186 static void printmbuf (struct mbuf *m)
  187 {
  188         printf ("mbuf:");
  189         for (; m; m=m->m_next) {
  190                 if (m->m_flags & M_PKTHDR)
  191                         printf (" HDR %d:", m->m_pkthdr.len);
  192                 if (m->m_flags & M_EXT)
  193                         printf (" EXT:");
  194                 printf (" %d", m->m_len);
  195         }
  196         printf ("\n");
  197 }
  198 
  199 /*
  200  * Make an mbuf from data.
  201  */
  202 static struct mbuf *makembuf (void *buf, unsigned len)
  203 {
  204         struct mbuf *m;
  205 
  206         MGETHDR (m, M_DONTWAIT, MT_DATA);
  207         if (! m)
  208                 return 0;
  209         MCLGET (m, M_DONTWAIT);
  210         if (! (m->m_flags & M_EXT)) {
  211                 m_freem (m);
  212                 return 0;
  213         }
  214         m->m_pkthdr.len = m->m_len = len;
  215         bcopy (buf, mtod (m, caddr_t), len);
  216         return m;
  217 }
  218 
  219 static int cp_probe (device_t dev)
  220 {
  221         if ((pci_get_vendor (dev) == cp_vendor_id) &&
  222             (pci_get_device (dev) == cp_device_id)) {
  223                 device_set_desc (dev, "Cronyx-Tau-PCI serial adapter");
  224                 return BUS_PROBE_DEFAULT;
  225         }
  226         return ENXIO;
  227 }
  228 
  229 static void cp_timeout (void *arg)
  230 {
  231         drv_t *d;
  232         int s, i, k;
  233 
  234         for (i = 0; i < NBRD; ++i) {
  235                 if (adapter[i] == NULL)
  236                         continue;
  237                 for (k = 0; k < NCHAN; ++k) {
  238                         s = splimp ();
  239                         if (cp_destroy) {
  240                                 splx (s);
  241                                 return;
  242                         }
  243                         d = channel[i * NCHAN + k];
  244                         if (!d) {
  245                                 splx (s);
  246                                 continue;
  247                         }
  248                         CP_LOCK ((bdrv_t *)d->board->sys);
  249                         switch (d->chan->type) {
  250                         case T_G703:
  251                                 cp_g703_timer (d->chan);
  252                                 break;
  253                         case T_E1:
  254                                 cp_e1_timer (d->chan);
  255                                 break;
  256                         case T_E3:
  257                         case T_T3:
  258                         case T_STS1:
  259                                 cp_e3_timer (d->chan);
  260                                 break;
  261                         default:
  262                                 break;
  263                         }
  264                         CP_UNLOCK ((bdrv_t *)d->board->sys);
  265                         splx (s);
  266                 }
  267         }
  268         s = splimp ();
  269         if (!cp_destroy)
  270                 callout_reset (&timeout_handle, hz, cp_timeout, 0);
  271         splx (s);
  272 }
  273 
  274 static void cp_led_off (void *arg)
  275 {
  276         cp_board_t *b = arg;
  277         bdrv_t *bd = (bdrv_t *) b->sys;
  278         int s;
  279         s = splimp ();
  280         if (cp_destroy) {
  281                 splx (s);
  282                 return;
  283         }
  284         CP_LOCK (bd);
  285         cp_led (b, 0);
  286         CP_UNLOCK (bd);
  287         splx (s);
  288 }
  289 
  290 static void cp_intr (void *arg)
  291 {
  292         bdrv_t *bd = arg;
  293         cp_board_t *b = bd->board;
  294 #ifndef NETGRAPH
  295         int i;
  296 #endif
  297         int s = splimp ();
  298         if (cp_destroy) {
  299                 splx (s);
  300                 return;
  301         }
  302         CP_LOCK (bd);
  303         /* Check if we are ready */
  304         if (b->sys == NULL) {
  305                 /* Not we are not, just cleanup. */
  306                 cp_interrupt_poll (b, 1);
  307                 CP_UNLOCK (bd);
  308                 return;
  309         }
  310         /* Turn LED on. */
  311         cp_led (b, 1);
  312 
  313         cp_interrupt (b);
  314 
  315         /* Turn LED off 50 msec later. */
  316         callout_reset (&led_timo[b->num], hz/20, cp_led_off, b);
  317         CP_UNLOCK (bd);
  318         splx (s);
  319 
  320 #ifndef NETGRAPH
  321         /* Pass packets in a lock-free state */
  322         for (i = 0; i < NCHAN && b->chan[i].type; i++) {
  323                 drv_t *d = b->chan[i].sys;
  324                 struct mbuf *m;
  325                 if (!d || !d->running)
  326                         continue;
  327                 while (_IF_QLEN(&d->queue)) {
  328                         IF_DEQUEUE (&d->queue,m);
  329                         if (!m)
  330                                 continue;
  331                         sppp_input (d->ifp, m); 
  332                 }
  333         }
  334 #endif
  335 }
  336 
  337 static void
  338 cp_bus_dmamap_addr (void *arg, bus_dma_segment_t *segs, int nseg, int error)
  339 {
  340         unsigned long *addr;
  341 
  342         if (error)
  343                 return;
  344 
  345         KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
  346         addr = arg;
  347         *addr = segs->ds_addr;
  348 }
  349 
  350 static int
  351 cp_bus_dma_mem_alloc (int bnum, int cnum, cp_dma_mem_t *dmem)
  352 {
  353         int error;
  354 
  355         error = bus_dma_tag_create (NULL, 16, 0, BUS_SPACE_MAXADDR_32BIT,
  356                 BUS_SPACE_MAXADDR, NULL, NULL, dmem->size, 1,
  357                 dmem->size, 0, NULL, NULL, &dmem->dmat);
  358         if (error) {
  359                 if (cnum >= 0)  printf ("cp%d-%d: ", bnum, cnum);
  360                 else            printf ("cp%d: ", bnum);
  361                 printf ("couldn't allocate tag for dma memory\n");
  362                 return 0;
  363         }
  364         error = bus_dmamem_alloc (dmem->dmat, (void **)&dmem->virt,
  365                 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &dmem->mapp);
  366         if (error) {
  367                 if (cnum >= 0)  printf ("cp%d-%d: ", bnum, cnum);
  368                 else            printf ("cp%d: ", bnum);
  369                 printf ("couldn't allocate mem for dma memory\n");
  370                 bus_dma_tag_destroy (dmem->dmat);
  371                 return 0;
  372         }
  373         error = bus_dmamap_load (dmem->dmat, dmem->mapp, dmem->virt,
  374                 dmem->size, cp_bus_dmamap_addr, &dmem->phys, 0);
  375         if (error) {
  376                 if (cnum >= 0)  printf ("cp%d-%d: ", bnum, cnum);
  377                 else            printf ("cp%d: ", bnum);
  378                 printf ("couldn't load mem map for dma memory\n");
  379                 bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp);
  380                 bus_dma_tag_destroy (dmem->dmat);
  381                 return 0;
  382         }
  383         return 1;
  384 }
  385 
  386 static void
  387 cp_bus_dma_mem_free (cp_dma_mem_t *dmem)
  388 {
  389         bus_dmamap_unload (dmem->dmat, dmem->mapp);
  390         bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp);
  391         bus_dma_tag_destroy (dmem->dmat);
  392 }
  393 
  394 /*
  395  * Called if the probe succeeded.
  396  */
  397 static int cp_attach (device_t dev)
  398 {
  399         bdrv_t *bd = device_get_softc (dev);
  400         int unit = device_get_unit (dev);
  401         char *cp_ln = CP_LOCK_NAME;
  402         unsigned short res;
  403         vm_offset_t vbase;
  404         int rid, error;
  405         cp_board_t *b;
  406         cp_chan_t *c;
  407         drv_t *d;
  408         int s = splimp ();
  409 
  410         b = malloc (sizeof(cp_board_t), M_DEVBUF, M_WAITOK);
  411         if (!b) {
  412                 printf ("cp%d: couldn't allocate memory\n", unit);              
  413                 splx (s);
  414                 return (ENXIO);
  415         }
  416         bzero (b, sizeof(cp_board_t));
  417 
  418         bd->board = b;
  419         rid = PCIR_BAR(0);
  420         bd->cp_res = bus_alloc_resource (dev, SYS_RES_MEMORY, &rid,
  421                         0, ~0, 1, RF_ACTIVE);
  422         if (! bd->cp_res) {
  423                 printf ("cp%d: cannot map memory\n", unit);
  424                 free (b, M_DEVBUF);
  425                 splx (s);
  426                 return (ENXIO);
  427         }
  428         vbase = (vm_offset_t) rman_get_virtual (bd->cp_res);
  429 
  430         cp_ln[2] = '' + unit;
  431         mtx_init (&bd->cp_mtx, cp_ln, MTX_NETWORK_LOCK, MTX_DEF|MTX_RECURSE);
  432         res = cp_init (b, unit, (u_char*) vbase);
  433         if (res) {
  434                 printf ("cp%d: can't init, error code:%x\n", unit, res);
  435                 bus_release_resource (dev, SYS_RES_MEMORY, PCIR_BAR(0), bd->cp_res);
  436                 free (b, M_DEVBUF);
  437                 splx (s);
  438                 return (ENXIO);
  439         }
  440 
  441         bd->dmamem.size = sizeof(cp_qbuf_t);
  442         if (! cp_bus_dma_mem_alloc (unit, -1, &bd->dmamem)) {
  443                 free (b, M_DEVBUF);
  444                 splx (s);
  445                 return (ENXIO);
  446         }
  447         CP_LOCK (bd);
  448         cp_reset (b, bd->dmamem.virt, bd->dmamem.phys);
  449         CP_UNLOCK (bd);
  450 
  451         rid = 0;
  452         bd->cp_irq = bus_alloc_resource (dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
  453                         RF_SHAREABLE | RF_ACTIVE);
  454         if (! bd->cp_irq) {
  455                 cp_destroy = 1;
  456                 printf ("cp%d: cannot map interrupt\n", unit);  
  457                 bus_release_resource (dev, SYS_RES_MEMORY,
  458                                 PCIR_BAR(0), bd->cp_res);
  459                 mtx_destroy (&bd->cp_mtx);
  460                 free (b, M_DEVBUF);
  461                 splx (s);
  462                 return (ENXIO);
  463         }
  464         callout_init (&led_timo[unit], CALLOUT_MPSAFE);
  465         error  = bus_setup_intr (dev, bd->cp_irq,
  466                                 INTR_TYPE_NET|INTR_MPSAFE,
  467                                 NULL, cp_intr, bd, &bd->cp_intrhand);
  468         if (error) {
  469                 cp_destroy = 1;
  470                 printf ("cp%d: cannot set up irq\n", unit);
  471                 bus_release_resource (dev, SYS_RES_IRQ, 0, bd->cp_irq);
  472                 bus_release_resource (dev, SYS_RES_MEMORY,
  473                                 PCIR_BAR(0), bd->cp_res);
  474                 mtx_destroy (&bd->cp_mtx);
  475                 free (b, M_DEVBUF);
  476                 splx (s);
  477                 return (ENXIO);
  478         }
  479         printf ("cp%d: %s, clock %ld MHz\n", unit, b->name, b->osc / 1000000);
  480 
  481         for (c = b->chan; c < b->chan + NCHAN; ++c) {
  482                 if (! c->type)
  483                         continue;
  484                 d = &bd->channel[c->num];
  485                 d->dmamem.size = sizeof(cp_buf_t);
  486                 if (! cp_bus_dma_mem_alloc (unit, c->num, &d->dmamem))
  487                         continue;
  488                 channel [b->num*NCHAN + c->num] = d;
  489                 sprintf (d->name, "cp%d.%d", b->num, c->num);
  490                 d->board = b;
  491                 d->chan = c;
  492                 c->sys = d;
  493 #ifdef NETGRAPH
  494                 if (ng_make_node_common (&typestruct, &d->node) != 0) {
  495                         printf ("%s: cannot make common node\n", d->name);
  496                         d->node = NULL;
  497                         continue;
  498                 }
  499                 NG_NODE_SET_PRIVATE (d->node, d);
  500                 sprintf (d->nodename, "%s%d", NG_CP_NODE_TYPE,
  501                          c->board->num*NCHAN + c->num);
  502                 if (ng_name_node (d->node, d->nodename)) {
  503                         printf ("%s: cannot name node\n", d->nodename);
  504                         NG_NODE_UNREF (d->node);
  505                         continue;
  506                 }
  507                 d->queue.ifq_maxlen = ifqmaxlen;
  508                 d->hi_queue.ifq_maxlen = ifqmaxlen;
  509                 mtx_init (&d->queue.ifq_mtx, "cp_queue", NULL, MTX_DEF);
  510                 mtx_init (&d->hi_queue.ifq_mtx, "cp_queue_hi", NULL, MTX_DEF);
  511                 callout_init (&d->timeout_handle, CALLOUT_MPSAFE);
  512 #else /*NETGRAPH*/
  513                 d->ifp = if_alloc(IFT_PPP);
  514                 if (d->ifp == NULL) {
  515                         printf ("%s: cannot if_alloc() interface\n", d->name);
  516                         continue;
  517                 }
  518                 d->ifp->if_softc        = d;
  519                 if_initname (d->ifp, "cp", b->num * NCHAN + c->num);
  520                 d->ifp->if_mtu          = PP_MTU;
  521                 d->ifp->if_flags        = IFF_POINTOPOINT | IFF_MULTICAST;
  522                 d->ifp->if_ioctl        = cp_sioctl;
  523                 d->ifp->if_start        = cp_ifstart;
  524                 d->ifp->if_watchdog     = cp_ifwatchdog;
  525                 d->ifp->if_init         = cp_initialize;
  526                 d->queue.ifq_maxlen     = NRBUF;
  527                 mtx_init (&d->queue.ifq_mtx, "cp_queue", NULL, MTX_DEF);
  528                 sppp_attach (d->ifp);
  529                 if_attach (d->ifp);
  530                 IFP2SP(d->ifp)->pp_tlf  = cp_tlf;
  531                 IFP2SP(d->ifp)->pp_tls  = cp_tls;
  532                 /* If BPF is in the kernel, call the attach for it.
  533                  * The header size of PPP or Cisco/HDLC is 4 bytes. */
  534                 bpfattach (d->ifp, DLT_PPP, 4);
  535 #endif /*NETGRAPH*/
  536                 cp_start_e1 (c);
  537                 cp_start_chan (c, 1, 1, d->dmamem.virt, d->dmamem.phys);
  538 
  539                 /* Register callback functions. */
  540                 cp_register_transmit (c, &cp_transmit);
  541                 cp_register_receive (c, &cp_receive);
  542                 cp_register_error (c, &cp_error);
  543                 d->devt = make_dev (&cp_cdevsw, b->num*NCHAN+c->num, UID_ROOT,
  544                                 GID_WHEEL, 0600, "cp%d", b->num*NCHAN+c->num);
  545         }
  546         CP_LOCK (bd);
  547         b->sys = bd;
  548         adapter[unit] = b;
  549         CP_UNLOCK (bd);
  550         splx (s);
  551         return 0;
  552 }
  553 
  554 static int cp_detach (device_t dev)
  555 {
  556         bdrv_t *bd = device_get_softc (dev);
  557         cp_board_t *b = bd->board;
  558         cp_chan_t *c;
  559         int s;
  560 
  561         KASSERT (mtx_initialized (&bd->cp_mtx), ("cp mutex not initialized"));
  562         s = splimp ();
  563         CP_LOCK (bd);
  564         /* Check if the device is busy (open). */
  565         for (c = b->chan; c < b->chan + NCHAN; ++c) {
  566                 drv_t *d = (drv_t*) c->sys;
  567 
  568                 if (! d || ! d->chan->type)
  569                         continue;
  570                 if (d->running) {
  571                         CP_UNLOCK (bd);
  572                         splx (s);
  573                         return EBUSY;
  574                 }
  575         }
  576 
  577         /* Ok, we can unload driver */
  578         /* At first we should stop all channels */
  579         for (c = b->chan; c < b->chan + NCHAN; ++c) {
  580                 drv_t *d = (drv_t*) c->sys;
  581 
  582                 if (! d || ! d->chan->type)
  583                         continue;
  584 
  585                 cp_stop_chan (c);
  586                 cp_stop_e1 (c);
  587                 cp_set_dtr (d->chan, 0);
  588                 cp_set_rts (d->chan, 0);
  589         }
  590 
  591         /* Reset the adapter. */
  592         cp_destroy = 1;
  593         cp_interrupt_poll (b, 1);
  594         cp_led_off (b);
  595         cp_reset (b, 0 ,0);
  596         callout_stop (&led_timo[b->num]);
  597 
  598         /* Disable the interrupt request. */
  599         bus_teardown_intr (dev, bd->cp_irq, bd->cp_intrhand);
  600 
  601         for (c=b->chan; c<b->chan+NCHAN; ++c) {
  602                 drv_t *d = (drv_t*) c->sys;
  603 
  604                 if (! d || ! d->chan->type)
  605                         continue;
  606 #ifndef NETGRAPH
  607                 /* Detach from the packet filter list of interfaces. */
  608                 bpfdetach (d->ifp);
  609 
  610                 /* Detach from the sync PPP list. */
  611                 sppp_detach (d->ifp);
  612 
  613                 /* Detach from the system list of interfaces. */
  614                 if_detach (d->ifp);
  615                 if_free (d->ifp);
  616                 IF_DRAIN (&d->queue);
  617                 mtx_destroy (&d->queue.ifq_mtx);
  618 #else
  619                 if (d->node) {
  620                         ng_rmnode_self (d->node);
  621                         NG_NODE_UNREF (d->node);
  622                         d->node = NULL;
  623                 }
  624                 mtx_destroy (&d->queue.ifq_mtx);
  625                 mtx_destroy (&d->hi_queue.ifq_mtx);
  626 #endif
  627                 destroy_dev (d->devt);
  628         }
  629 
  630         b->sys = NULL;
  631         CP_UNLOCK (bd);
  632 
  633         bus_release_resource (dev, SYS_RES_IRQ, 0, bd->cp_irq);
  634         bus_release_resource (dev, SYS_RES_MEMORY, PCIR_BAR(0), bd->cp_res);
  635 
  636         CP_LOCK (bd);
  637         cp_led_off (b);
  638         CP_UNLOCK (bd);
  639         callout_drain (&led_timo[b->num]);
  640         splx (s);
  641 
  642         s = splimp ();
  643         for (c = b->chan; c < b->chan + NCHAN; ++c) {
  644                 drv_t *d = (drv_t*) c->sys;
  645 
  646                 if (! d || ! d->chan->type)
  647                         continue;
  648                 channel [b->num*NCHAN + c->num] = 0;
  649                 /* Deallocate buffers. */
  650                 cp_bus_dma_mem_free (&d->dmamem);
  651         }
  652         adapter [b->num] = 0;
  653         cp_bus_dma_mem_free (&bd->dmamem);
  654         free (b, M_DEVBUF);
  655         splx (s);
  656         mtx_destroy (&bd->cp_mtx);
  657         return 0;
  658 }
  659 
  660 #ifndef NETGRAPH
  661 static void cp_ifstart (struct ifnet *ifp)
  662 {
  663         drv_t *d = ifp->if_softc;
  664         bdrv_t *bd = d->board->sys;
  665 
  666         CP_LOCK (bd);
  667         cp_start (d);
  668         CP_UNLOCK (bd);
  669 }
  670 
  671 static void cp_ifwatchdog (struct ifnet *ifp)
  672 {
  673         drv_t *d = ifp->if_softc;
  674 
  675         cp_watchdog (d);
  676 }
  677 
  678 static void cp_tlf (struct sppp *sp)
  679 {
  680         drv_t *d = SP2IFP(sp)->if_softc;
  681 
  682         CP_DEBUG2 (d, ("cp_tlf\n"));
  683         /* XXXRIK: Don't forget to protect them by LOCK, or kill them. */
  684 /*      cp_set_dtr (d->chan, 0);*/
  685 /*      cp_set_rts (d->chan, 0);*/
  686         if (!(sp->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO))
  687                 sp->pp_down (sp);
  688 }
  689 
  690 static void cp_tls (struct sppp *sp)
  691 {
  692         drv_t *d = SP2IFP(sp)->if_softc;
  693 
  694         CP_DEBUG2 (d, ("cp_tls\n"));
  695         if (!(sp->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO))
  696                 sp->pp_up (sp);
  697 }
  698 
  699 /*
  700  * Process an ioctl request.
  701  */
  702 static int cp_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data)
  703 {
  704         drv_t *d = ifp->if_softc;
  705         bdrv_t *bd = d->board->sys;
  706         int error, s, was_up, should_be_up;
  707 
  708         was_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
  709         error = sppp_ioctl (ifp, cmd, data);
  710 
  711         if (error)
  712                 return error;
  713 
  714         if (! (ifp->if_flags & IFF_DEBUG))
  715                 d->chan->debug = 0;
  716         else
  717                 d->chan->debug = d->chan->debug_shadow;
  718 
  719         switch (cmd) {
  720         default:           CP_DEBUG2 (d, ("ioctl 0x%lx\n", cmd));   return 0;
  721         case SIOCADDMULTI: CP_DEBUG2 (d, ("ioctl SIOCADDMULTI\n")); return 0;
  722         case SIOCDELMULTI: CP_DEBUG2 (d, ("ioctl SIOCDELMULTI\n")); return 0;
  723         case SIOCSIFFLAGS: CP_DEBUG2 (d, ("ioctl SIOCSIFFLAGS\n")); break;
  724         case SIOCSIFADDR:  CP_DEBUG2 (d, ("ioctl SIOCSIFADDR\n"));  break;
  725         }
  726 
  727         /* We get here only in case of SIFFLAGS or SIFADDR. */
  728         s = splimp ();
  729         CP_LOCK (bd);
  730         should_be_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
  731         if (! was_up && should_be_up) {
  732                 /* Interface goes up -- start it. */
  733                 cp_up (d);
  734                 cp_start (d);
  735         } else if (was_up && ! should_be_up) {
  736                 /* Interface is going down -- stop it. */
  737 /*              if ((IFP2SP(ifp)->pp_flags & PP_FR) || (ifp->if_flags & PP_CISCO))*/
  738                 cp_down (d);
  739         }
  740         CP_DEBUG (d, ("ioctl 0x%lx p4\n", cmd));
  741         CP_UNLOCK (bd);
  742         splx (s);
  743         return 0;
  744 }
  745 
  746 /*
  747  * Initialization of interface.
  748  * It seems to be never called by upper level?
  749  */
  750 static void cp_initialize (void *softc)
  751 {
  752         drv_t *d = softc;
  753 
  754         CP_DEBUG (d, ("cp_initialize\n"));
  755 }
  756 #endif /*NETGRAPH*/
  757 
  758 /*
  759  * Stop the interface.  Called on splimp().
  760  */
  761 static void cp_down (drv_t *d)
  762 {
  763         CP_DEBUG (d, ("cp_down\n"));
  764         /* Interface is going down -- stop it. */
  765         cp_set_dtr (d->chan, 0);
  766         cp_set_rts (d->chan, 0);
  767 
  768         d->running = 0;
  769 }
  770 
  771 /*
  772  * Start the interface.  Called on splimp().
  773  */
  774 static void cp_up (drv_t *d)
  775 {
  776         CP_DEBUG (d, ("cp_up\n"));
  777         cp_set_dtr (d->chan, 1);
  778         cp_set_rts (d->chan, 1);
  779         d->running = 1;
  780 }
  781 
  782 /*
  783  * Start output on the interface.  Get another datagram to send
  784  * off of the interface queue, and copy it to the interface
  785  * before starting the output.
  786  */
  787 static void cp_send (drv_t *d)
  788 {
  789         struct mbuf *m;
  790         u_short len;
  791 
  792         CP_DEBUG2 (d, ("cp_send, tn=%d te=%d\n", d->chan->tn, d->chan->te));
  793 
  794         /* No output if the interface is down. */
  795         if (! d->running)
  796                 return;
  797 
  798         /* No output if the modem is off. */
  799         if (! (d->chan->lloop || d->chan->type != T_SERIAL ||
  800                 cp_get_dsr (d->chan)))
  801                 return;
  802 
  803         while (cp_transmit_space (d->chan)) {
  804                 /* Get the packet to send. */
  805 #ifdef NETGRAPH
  806                 IF_DEQUEUE (&d->hi_queue, m);
  807                 if (! m)
  808                         IF_DEQUEUE (&d->queue, m);
  809 #else
  810                 m = sppp_dequeue (d->ifp);
  811 #endif
  812                 if (! m)
  813                         return;
  814 #ifndef NETGRAPH
  815                 BPF_MTAP (d->ifp, m);
  816 #endif
  817                 len = m_length (m, NULL);
  818                 if (len >= BUFSZ)
  819                         printf ("%s: too long packet: %d bytes: ",
  820                                 d->name, len);
  821                 else if (! m->m_next)
  822                         cp_send_packet (d->chan, (u_char*) mtod (m, caddr_t), len, 0);
  823                 else {
  824                         u_char *buf = d->chan->tbuf[d->chan->te];
  825                         m_copydata (m, 0, len, buf);
  826                         cp_send_packet (d->chan, buf, len, 0);
  827                 }
  828                 m_freem (m);
  829                 /* Set up transmit timeout, if the transmit ring is not empty.*/
  830 #ifdef NETGRAPH
  831                 d->timeout = 10;
  832 #else
  833                 d->ifp->if_timer = 10;
  834 #endif
  835         }
  836 #ifndef NETGRAPH
  837         d->ifp->if_drv_flags |= IFF_DRV_OACTIVE;
  838 #endif
  839 }
  840 
  841 /*
  842  * Start output on the interface.
  843  * Always called on splimp().
  844  */
  845 static void cp_start (drv_t *d)
  846 {
  847         if (d->running) {
  848                 if (! d->chan->dtr)
  849                         cp_set_dtr (d->chan, 1);
  850                 if (! d->chan->rts)
  851                         cp_set_rts (d->chan, 1);
  852                 cp_send (d);
  853         }
  854 }
  855 
  856 /*
  857  * Handle transmit timeouts.
  858  * Recover after lost transmit interrupts.
  859  * Always called on splimp().
  860  */
  861 static void cp_watchdog (drv_t *d)
  862 {
  863         bdrv_t *bd = d->board->sys;
  864         CP_DEBUG (d, ("device timeout\n"));
  865         if (d->running) {
  866                 int s = splimp ();
  867 
  868                 CP_LOCK (bd);
  869                 cp_stop_chan (d->chan);
  870                 cp_stop_e1 (d->chan);
  871                 cp_start_e1 (d->chan);
  872                 cp_start_chan (d->chan, 1, 1, 0, 0);
  873                 cp_set_dtr (d->chan, 1);
  874                 cp_set_rts (d->chan, 1);
  875                 cp_start (d);
  876                 CP_UNLOCK (bd);
  877                 splx (s);
  878         }
  879 }
  880 
  881 static void cp_transmit (cp_chan_t *c, void *attachment, int len)
  882 {
  883         drv_t *d = c->sys;
  884 
  885 #ifdef NETGRAPH
  886         d->timeout = 0;
  887 #else
  888         ++d->ifp->if_opackets;
  889         d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
  890         d->ifp->if_timer = 0;
  891 #endif
  892         cp_start (d);
  893 }
  894 
  895 static void cp_receive (cp_chan_t *c, unsigned char *data, int len)
  896 {
  897         drv_t *d = c->sys;
  898         struct mbuf *m;
  899 #ifdef NETGRAPH
  900         int error;
  901 #endif
  902 
  903         if (! d->running)
  904                 return;
  905 
  906         m = makembuf (data, len);
  907         if (! m) {
  908                 CP_DEBUG (d, ("no memory for packet\n"));
  909 #ifndef NETGRAPH
  910                 ++d->ifp->if_iqdrops;
  911 #endif
  912                 return;
  913         }
  914         if (c->debug > 1)
  915                 printmbuf (m);
  916 #ifdef NETGRAPH
  917         m->m_pkthdr.rcvif = 0;
  918         NG_SEND_DATA_ONLY (error, d->hook, m);
  919 #else
  920         ++d->ifp->if_ipackets;
  921         m->m_pkthdr.rcvif = d->ifp;
  922         /* Check if there's a BPF listener on this interface.
  923          * If so, hand off the raw packet to bpf. */
  924         BPF_TAP (d->ifp, data, len);
  925         IF_ENQUEUE (&d->queue, m);
  926 #endif
  927 }
  928 
  929 static void cp_error (cp_chan_t *c, int data)
  930 {
  931         drv_t *d = c->sys;
  932 
  933         switch (data) {
  934         case CP_FRAME:
  935                 CP_DEBUG (d, ("frame error\n"));
  936 #ifndef NETGRAPH
  937                 ++d->ifp->if_ierrors;
  938 #endif
  939                 break;
  940         case CP_CRC:
  941                 CP_DEBUG (d, ("crc error\n"));
  942 #ifndef NETGRAPH
  943                 ++d->ifp->if_ierrors;
  944 #endif
  945                 break;
  946         case CP_OVERRUN:
  947                 CP_DEBUG (d, ("overrun error\n"));
  948 #ifndef NETGRAPH
  949                 ++d->ifp->if_collisions;
  950                 ++d->ifp->if_ierrors;
  951 #endif
  952                 break;
  953         case CP_OVERFLOW:
  954                 CP_DEBUG (d, ("overflow error\n"));
  955 #ifndef NETGRAPH
  956                 ++d->ifp->if_ierrors;
  957 #endif
  958                 break;
  959         case CP_UNDERRUN:
  960                 CP_DEBUG (d, ("underrun error\n"));
  961 #ifdef NETGRAPH
  962                 d->timeout = 0;
  963 #else
  964                 ++d->ifp->if_oerrors;
  965                 d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
  966                 d->ifp->if_timer = 0;
  967 #endif
  968                 cp_start (d);
  969                 break;
  970         default:
  971                 CP_DEBUG (d, ("error #%d\n", data));
  972                 break;
  973         }
  974 }
  975 
  976 /*
  977  * You also need read, write, open, close routines.
  978  * This should get you started
  979  */
  980 static int cp_open (struct cdev *dev, int oflags, int devtype, struct thread *td)
  981 {
  982         int unit = dev2unit (dev);
  983         drv_t *d;
  984 
  985         if (unit >= NBRD*NCHAN || ! (d = channel[unit]))
  986                 return ENXIO;
  987         CP_DEBUG2 (d, ("cp_open\n"));
  988         return 0;
  989 }
  990 
  991 /*
  992  * Only called on the LAST close.
  993  */
  994 static int cp_close (struct cdev *dev, int fflag, int devtype, struct thread *td)
  995 {
  996         drv_t *d = channel [dev2unit (dev)];
  997 
  998         CP_DEBUG2 (d, ("cp_close\n"));
  999         return 0;
 1000 }
 1001 
 1002 static int cp_modem_status (cp_chan_t *c)
 1003 {
 1004         drv_t *d = c->sys;
 1005         bdrv_t *bd = d->board->sys;
 1006         int status, s;
 1007 
 1008         status = d->running ? TIOCM_LE : 0;
 1009         s = splimp ();
 1010         CP_LOCK (bd);
 1011         if (cp_get_cd  (c)) status |= TIOCM_CD;
 1012         if (cp_get_cts (c)) status |= TIOCM_CTS;
 1013         if (cp_get_dsr (c)) status |= TIOCM_DSR;
 1014         if (c->dtr)         status |= TIOCM_DTR;
 1015         if (c->rts)         status |= TIOCM_RTS;
 1016         CP_UNLOCK (bd);
 1017         splx (s);
 1018         return status;
 1019 }
 1020 
 1021 static int cp_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
 1022 {
 1023         drv_t *d = channel [dev2unit (dev)];
 1024         bdrv_t *bd = d->board->sys;
 1025         cp_chan_t *c = d->chan;
 1026         struct serial_statistics *st;
 1027         struct e1_statistics *opte1;
 1028         struct e3_statistics *opte3;
 1029         int error, s;
 1030         char mask[16];
 1031 
 1032         switch (cmd) {
 1033         case SERIAL_GETREGISTERED:
 1034                 CP_DEBUG2 (d, ("ioctl: getregistered\n"));
 1035                 bzero (mask, sizeof(mask));
 1036                 for (s=0; s<NBRD*NCHAN; ++s)
 1037                         if (channel [s])
 1038                                 mask [s/8] |= 1 << (s & 7);
 1039                 bcopy (mask, data, sizeof (mask));
 1040                 return 0;
 1041 
 1042 #ifndef NETGRAPH
 1043         case SERIAL_GETPROTO:
 1044                 CP_DEBUG2 (d, ("ioctl: getproto\n"));
 1045                 strcpy ((char*)data, (IFP2SP(d->ifp)->pp_flags & PP_FR) ? "fr" :
 1046                         (d->ifp->if_flags & PP_CISCO) ? "cisco" : "ppp");
 1047                 return 0;
 1048 
 1049         case SERIAL_SETPROTO:
 1050                 CP_DEBUG2 (d, ("ioctl: setproto\n"));
 1051                 /* Only for superuser! */
 1052                 error = priv_check (td, PRIV_DRIVER);
 1053                 if (error)
 1054                         return error;
 1055                 if (d->ifp->if_drv_flags & IFF_DRV_RUNNING)
 1056                         return EBUSY;
 1057                 if (! strcmp ("cisco", (char*)data)) {
 1058                         IFP2SP(d->ifp)->pp_flags &= ~(PP_FR);
 1059                         IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
 1060                         d->ifp->if_flags |= PP_CISCO;
 1061                 } else if (! strcmp ("fr", (char*)data) && PP_FR) {
 1062                         d->ifp->if_flags &= ~(PP_CISCO);
 1063                         IFP2SP(d->ifp)->pp_flags |= PP_FR | PP_KEEPALIVE;
 1064                 } else if (! strcmp ("ppp", (char*)data)) {
 1065                         IFP2SP(d->ifp)->pp_flags &= ~PP_FR;
 1066                         IFP2SP(d->ifp)->pp_flags &= ~PP_KEEPALIVE;
 1067                         d->ifp->if_flags &= ~(PP_CISCO);
 1068                 } else
 1069                         return EINVAL;
 1070                 return 0;
 1071 
 1072         case SERIAL_GETKEEPALIVE:
 1073                 CP_DEBUG2 (d, ("ioctl: getkeepalive\n"));
 1074                 if ((IFP2SP(d->ifp)->pp_flags & PP_FR) ||
 1075                         (d->ifp->if_flags & PP_CISCO))
 1076                         return EINVAL;
 1077                 *(int*)data = (IFP2SP(d->ifp)->pp_flags & PP_KEEPALIVE) ? 1 : 0;
 1078                 return 0;
 1079 
 1080         case SERIAL_SETKEEPALIVE:
 1081                 CP_DEBUG2 (d, ("ioctl: setkeepalive\n"));
 1082                 /* Only for superuser! */
 1083                 error = priv_check (td, PRIV_DRIVER);
 1084                 if (error)
 1085                         return error;
 1086                 if ((IFP2SP(d->ifp)->pp_flags & PP_FR) ||
 1087                         (d->ifp->if_flags & PP_CISCO))
 1088                         return EINVAL;
 1089                 s = splimp ();
 1090                 CP_LOCK (bd);
 1091                 if (*(int*)data)
 1092                         IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
 1093                 else
 1094                         IFP2SP(d->ifp)->pp_flags &= ~PP_KEEPALIVE;
 1095                 CP_UNLOCK (bd);
 1096                 splx (s);
 1097                 return 0;
 1098 #endif /*NETGRAPH*/
 1099 
 1100         case SERIAL_GETMODE:
 1101                 CP_DEBUG2 (d, ("ioctl: getmode\n"));
 1102                 *(int*)data = SERIAL_HDLC;
 1103                 return 0;
 1104 
 1105         case SERIAL_SETMODE:
 1106                 /* Only for superuser! */
 1107                 error = priv_check (td, PRIV_DRIVER);
 1108                 if (error)
 1109                         return error;
 1110                 if (*(int*)data != SERIAL_HDLC)
 1111                         return EINVAL;
 1112                 return 0;
 1113 
 1114         case SERIAL_GETCFG:
 1115                 CP_DEBUG2 (d, ("ioctl: getcfg\n"));
 1116                 if (c->type != T_E1 || c->unfram)
 1117                         return EINVAL;
 1118                 *(char*)data = c->board->mux ? 'c' : 'a';
 1119                 return 0;
 1120 
 1121         case SERIAL_SETCFG:
 1122                 CP_DEBUG2 (d, ("ioctl: setcfg\n"));
 1123                 error = priv_check (td, PRIV_DRIVER);
 1124                 if (error)
 1125                         return error;
 1126                 if (c->type != T_E1)
 1127                         return EINVAL;
 1128                 s = splimp ();
 1129                 CP_LOCK (bd);
 1130                 cp_set_mux (c->board, *((char*)data) == 'c');
 1131                 CP_UNLOCK (bd);
 1132                 splx (s);
 1133                 return 0;
 1134 
 1135         case SERIAL_GETSTAT:
 1136                 CP_DEBUG2 (d, ("ioctl: getstat\n"));
 1137                 st = (struct serial_statistics*) data;
 1138                 st->rintr  = c->rintr;
 1139                 st->tintr  = c->tintr;
 1140                 st->mintr  = 0;
 1141                 st->ibytes = c->ibytes;
 1142                 st->ipkts  = c->ipkts;
 1143                 st->obytes = c->obytes;
 1144                 st->opkts  = c->opkts;
 1145                 st->ierrs  = c->overrun + c->frame + c->crc;
 1146                 st->oerrs  = c->underrun;
 1147                 return 0;
 1148 
 1149         case SERIAL_GETESTAT:
 1150                 CP_DEBUG2 (d, ("ioctl: getestat\n"));
 1151                 if (c->type != T_E1 && c->type != T_G703)
 1152                         return EINVAL;
 1153                 opte1 = (struct e1_statistics*) data;
 1154                 opte1->status       = c->status;
 1155                 opte1->cursec       = c->cursec;
 1156                 opte1->totsec       = c->totsec + c->cursec;
 1157 
 1158                 opte1->currnt.bpv   = c->currnt.bpv;
 1159                 opte1->currnt.fse   = c->currnt.fse;
 1160                 opte1->currnt.crce  = c->currnt.crce;
 1161                 opte1->currnt.rcrce = c->currnt.rcrce;
 1162                 opte1->currnt.uas   = c->currnt.uas;
 1163                 opte1->currnt.les   = c->currnt.les;
 1164                 opte1->currnt.es    = c->currnt.es;
 1165                 opte1->currnt.bes   = c->currnt.bes;
 1166                 opte1->currnt.ses   = c->currnt.ses;
 1167                 opte1->currnt.oofs  = c->currnt.oofs;
 1168                 opte1->currnt.css   = c->currnt.css;
 1169                 opte1->currnt.dm    = c->currnt.dm;
 1170 
 1171                 opte1->total.bpv    = c->total.bpv   + c->currnt.bpv;
 1172                 opte1->total.fse    = c->total.fse   + c->currnt.fse;
 1173                 opte1->total.crce   = c->total.crce  + c->currnt.crce;
 1174                 opte1->total.rcrce  = c->total.rcrce + c->currnt.rcrce;
 1175                 opte1->total.uas    = c->total.uas   + c->currnt.uas;
 1176                 opte1->total.les    = c->total.les   + c->currnt.les;
 1177                 opte1->total.es     = c->total.es    + c->currnt.es;
 1178                 opte1->total.bes    = c->total.bes   + c->currnt.bes;
 1179                 opte1->total.ses    = c->total.ses   + c->currnt.ses;
 1180                 opte1->total.oofs   = c->total.oofs  + c->currnt.oofs;
 1181                 opte1->total.css    = c->total.css   + c->currnt.css;
 1182                 opte1->total.dm     = c->total.dm    + c->currnt.dm;
 1183                 for (s=0; s<48; ++s) {
 1184                         opte1->interval[s].bpv   = c->interval[s].bpv;
 1185                         opte1->interval[s].fse   = c->interval[s].fse;
 1186                         opte1->interval[s].crce  = c->interval[s].crce;
 1187                         opte1->interval[s].rcrce = c->interval[s].rcrce;
 1188                         opte1->interval[s].uas   = c->interval[s].uas;
 1189                         opte1->interval[s].les   = c->interval[s].les;
 1190                         opte1->interval[s].es    = c->interval[s].es;
 1191                         opte1->interval[s].bes   = c->interval[s].bes;
 1192                         opte1->interval[s].ses   = c->interval[s].ses;
 1193                         opte1->interval[s].oofs  = c->interval[s].oofs;
 1194                         opte1->interval[s].css   = c->interval[s].css;
 1195                         opte1->interval[s].dm    = c->interval[s].dm;
 1196                 }
 1197                 return 0;
 1198 
 1199         case SERIAL_GETE3STAT:
 1200                 CP_DEBUG2 (d, ("ioctl: gete3stat\n"));
 1201                 if (c->type != T_E3 && c->type != T_T3 && c->type != T_STS1)
 1202                         return EINVAL;
 1203                 opte3 = (struct e3_statistics*) data;
 1204 
 1205                 opte3->status = c->e3status;
 1206                 opte3->cursec = (c->e3csec_5 * 2 + 1) / 10;
 1207                 opte3->totsec = c->e3tsec + opte3->cursec;
 1208 
 1209                 opte3->ccv = c->e3ccv;
 1210                 opte3->tcv = c->e3tcv + opte3->ccv;
 1211 
 1212                 for (s = 0; s < 48; ++s) {
 1213                         opte3->icv[s] = c->e3icv[s];
 1214                 }
 1215                 return 0;
 1216                 
 1217         case SERIAL_CLRSTAT:
 1218                 CP_DEBUG2 (d, ("ioctl: clrstat\n"));
 1219                 /* Only for superuser! */
 1220                 error = priv_check (td, PRIV_DRIVER);
 1221                 if (error)
 1222                         return error;
 1223                 c->rintr    = 0;
 1224                 c->tintr    = 0;
 1225                 c->ibytes   = 0;
 1226                 c->obytes   = 0;
 1227                 c->ipkts    = 0;
 1228                 c->opkts    = 0;
 1229                 c->overrun  = 0;
 1230                 c->frame    = 0;
 1231                 c->crc      = 0;
 1232                 c->underrun = 0;
 1233                 bzero (&c->currnt, sizeof (c->currnt));
 1234                 bzero (&c->total, sizeof (c->total));
 1235                 bzero (c->interval, sizeof (c->interval));
 1236                 c->e3ccv    = 0;
 1237                 c->e3tcv    = 0;
 1238                 bzero (c->e3icv, sizeof (c->e3icv));
 1239                 return 0;
 1240 
 1241         case SERIAL_GETBAUD:
 1242                 CP_DEBUG2 (d, ("ioctl: getbaud\n"));
 1243                 *(long*)data = c->baud;
 1244                 return 0;
 1245 
 1246         case SERIAL_SETBAUD:
 1247                 CP_DEBUG2 (d, ("ioctl: setbaud\n"));
 1248                 /* Only for superuser! */
 1249                 error = priv_check (td, PRIV_DRIVER);
 1250                 if (error)
 1251                         return error;
 1252                 s = splimp ();
 1253                 CP_LOCK (bd);
 1254                 cp_set_baud (c, *(long*)data);
 1255                 CP_UNLOCK (bd);
 1256                 splx (s);
 1257                 return 0;
 1258 
 1259         case SERIAL_GETLOOP:
 1260                 CP_DEBUG2 (d, ("ioctl: getloop\n"));
 1261                 *(int*)data = c->lloop;
 1262                 return 0;
 1263 
 1264         case SERIAL_SETLOOP:
 1265                 CP_DEBUG2 (d, ("ioctl: setloop\n"));
 1266                 /* Only for superuser! */
 1267                 error = priv_check (td, PRIV_DRIVER);
 1268                 if (error)
 1269                         return error;
 1270                 s = splimp ();
 1271                 CP_LOCK (bd);
 1272                 cp_set_lloop (c, *(int*)data);
 1273                 CP_UNLOCK (bd);
 1274                 splx (s);
 1275                 return 0;
 1276 
 1277         case SERIAL_GETDPLL:
 1278                 CP_DEBUG2 (d, ("ioctl: getdpll\n"));
 1279                 if (c->type != T_SERIAL)
 1280                         return EINVAL;
 1281                 *(int*)data = c->dpll;
 1282                 return 0;
 1283 
 1284         case SERIAL_SETDPLL:
 1285                 CP_DEBUG2 (d, ("ioctl: setdpll\n"));
 1286                 /* Only for superuser! */
 1287                 error = priv_check (td, PRIV_DRIVER);
 1288                 if (error)
 1289                         return error;
 1290                 if (c->type != T_SERIAL)
 1291                         return EINVAL;
 1292                 s = splimp ();
 1293                 CP_LOCK (bd);
 1294                 cp_set_dpll (c, *(int*)data);
 1295                 CP_UNLOCK (bd);
 1296                 splx (s);
 1297                 return 0;
 1298 
 1299         case SERIAL_GETNRZI:
 1300                 CP_DEBUG2 (d, ("ioctl: getnrzi\n"));
 1301                 if (c->type != T_SERIAL)
 1302                         return EINVAL;
 1303                 *(int*)data = c->nrzi;
 1304                 return 0;
 1305 
 1306         case SERIAL_SETNRZI:
 1307                 CP_DEBUG2 (d, ("ioctl: setnrzi\n"));
 1308                 /* Only for superuser! */
 1309                 error = priv_check (td, PRIV_DRIVER);
 1310                 if (error)
 1311                         return error;
 1312                 if (c->type != T_SERIAL)
 1313                         return EINVAL;
 1314                 s = splimp ();
 1315                 CP_LOCK (bd);
 1316                 cp_set_nrzi (c, *(int*)data);
 1317                 CP_UNLOCK (bd);
 1318                 splx (s);
 1319                 return 0;
 1320 
 1321         case SERIAL_GETDEBUG:
 1322                 CP_DEBUG2 (d, ("ioctl: getdebug\n"));
 1323                 *(int*)data = d->chan->debug;
 1324                 return 0;
 1325 
 1326         case SERIAL_SETDEBUG:
 1327                 CP_DEBUG2 (d, ("ioctl: setdebug\n"));
 1328                 /* Only for superuser! */
 1329                 error = priv_check (td, PRIV_DRIVER);
 1330                 if (error)
 1331                         return error;
 1332 #ifndef NETGRAPH
 1333                 /*
 1334                  * The debug_shadow is always greater than zero for logic 
 1335                  * simplicity.  For switching debug off the IFF_DEBUG is
 1336                  * responsible.
 1337                  */
 1338                 d->chan->debug_shadow = (*(int*)data) ? (*(int*)data) : 1;
 1339                 if (d->ifp->if_flags & IFF_DEBUG)
 1340                         d->chan->debug = d->chan->debug_shadow;
 1341 #else
 1342                 d->chan->debug = *(int*)data;
 1343 #endif
 1344                 return 0;
 1345 
 1346         case SERIAL_GETHIGAIN:
 1347                 CP_DEBUG2 (d, ("ioctl: gethigain\n"));
 1348                 if (c->type != T_E1)
 1349                         return EINVAL;
 1350                 *(int*)data = c->higain;
 1351                 return 0;
 1352 
 1353         case SERIAL_SETHIGAIN:
 1354                 CP_DEBUG2 (d, ("ioctl: sethigain\n"));
 1355                 /* Only for superuser! */
 1356                 error = priv_check (td, PRIV_DRIVER);
 1357                 if (error)
 1358                         return error;
 1359                 if (c->type != T_E1)
 1360                         return EINVAL;
 1361                 s = splimp ();
 1362                 CP_LOCK (bd);
 1363                 cp_set_higain (c, *(int*)data);
 1364                 CP_UNLOCK (bd);
 1365                 splx (s);
 1366                 return 0;
 1367 
 1368         case SERIAL_GETPHONY:
 1369                 CP_DEBUG2 (d, ("ioctl: getphony\n"));
 1370                 if (c->type != T_E1)
 1371                         return EINVAL;
 1372                 *(int*)data = c->phony;
 1373                 return 0;
 1374 
 1375         case SERIAL_SETPHONY:
 1376                 CP_DEBUG2 (d, ("ioctl: setphony\n"));
 1377                 /* Only for superuser! */
 1378                 error = priv_check (td, PRIV_DRIVER);
 1379                 if (error)
 1380                         return error;
 1381                 if (c->type != T_E1)
 1382                         return EINVAL;
 1383                 s = splimp ();
 1384                 CP_LOCK (bd);
 1385                 cp_set_phony (c, *(int*)data);
 1386                 CP_UNLOCK (bd);
 1387                 splx (s);
 1388                 return 0;
 1389 
 1390         case SERIAL_GETUNFRAM:
 1391                 CP_DEBUG2 (d, ("ioctl: getunfram\n"));
 1392                 if (c->type != T_E1)
 1393                         return EINVAL;
 1394                 *(int*)data = c->unfram;
 1395                 return 0;
 1396 
 1397         case SERIAL_SETUNFRAM:
 1398                 CP_DEBUG2 (d, ("ioctl: setunfram\n"));
 1399                 /* Only for superuser! */
 1400                 error = priv_check (td, PRIV_DRIVER);
 1401                 if (error)
 1402                         return error;
 1403                 if (c->type != T_E1)
 1404                         return EINVAL;
 1405                 s = splimp ();
 1406                 CP_LOCK (bd);
 1407                 cp_set_unfram (c, *(int*)data);
 1408                 CP_UNLOCK (bd);
 1409                 splx (s);
 1410                 return 0;
 1411 
 1412         case SERIAL_GETSCRAMBLER:
 1413                 CP_DEBUG2 (d, ("ioctl: getscrambler\n"));
 1414                 if (c->type != T_G703 && !c->unfram)
 1415                         return EINVAL;
 1416                 *(int*)data = c->scrambler;
 1417                 return 0;
 1418 
 1419         case SERIAL_SETSCRAMBLER:
 1420                 CP_DEBUG2 (d, ("ioctl: setscrambler\n"));
 1421                 /* Only for superuser! */
 1422                 error = priv_check (td, PRIV_DRIVER);
 1423                 if (error)
 1424                         return error;
 1425                 if (c->type != T_G703 && !c->unfram)
 1426                         return EINVAL;
 1427                 s = splimp ();
 1428                 CP_LOCK (bd);
 1429                 cp_set_scrambler (c, *(int*)data);
 1430                 CP_UNLOCK (bd);
 1431                 splx (s);
 1432                 return 0;
 1433 
 1434         case SERIAL_GETMONITOR:
 1435                 CP_DEBUG2 (d, ("ioctl: getmonitor\n"));
 1436                 if (c->type != T_E1 &&
 1437                     c->type != T_E3 &&
 1438                     c->type != T_T3 &&
 1439                     c->type != T_STS1)
 1440                         return EINVAL;
 1441                 *(int*)data = c->monitor;
 1442                 return 0;
 1443 
 1444         case SERIAL_SETMONITOR:
 1445                 CP_DEBUG2 (d, ("ioctl: setmonitor\n"));
 1446                 /* Only for superuser! */
 1447                 error = priv_check (td, PRIV_DRIVER);
 1448                 if (error)
 1449                         return error;
 1450                 if (c->type != T_E1)
 1451                         return EINVAL;
 1452                 s = splimp ();
 1453                 CP_LOCK (bd);
 1454                 cp_set_monitor (c, *(int*)data);
 1455                 CP_UNLOCK (bd);
 1456                 splx (s);
 1457                 return 0;
 1458 
 1459         case SERIAL_GETUSE16:
 1460                 CP_DEBUG2 (d, ("ioctl: getuse16\n"));
 1461                 if (c->type != T_E1 || c->unfram)
 1462                         return EINVAL;
 1463                 *(int*)data = c->use16;
 1464                 return 0;
 1465 
 1466         case SERIAL_SETUSE16:
 1467                 CP_DEBUG2 (d, ("ioctl: setuse16\n"));
 1468                 /* Only for superuser! */
 1469                 error = priv_check (td, PRIV_DRIVER);
 1470                 if (error)
 1471                         return error;
 1472                 if (c->type != T_E1)
 1473                         return EINVAL;
 1474                 s = splimp ();
 1475                 CP_LOCK (bd);
 1476                 cp_set_use16 (c, *(int*)data);
 1477                 CP_UNLOCK (bd);
 1478                 splx (s);
 1479                 return 0;
 1480 
 1481         case SERIAL_GETCRC4:
 1482                 CP_DEBUG2 (d, ("ioctl: getcrc4\n"));
 1483                 if (c->type != T_E1 || c->unfram)
 1484                         return EINVAL;
 1485                 *(int*)data = c->crc4;
 1486                 return 0;
 1487 
 1488         case SERIAL_SETCRC4:
 1489                 CP_DEBUG2 (d, ("ioctl: setcrc4\n"));
 1490                 /* Only for superuser! */
 1491                 error = priv_check (td, PRIV_DRIVER);
 1492                 if (error)
 1493                         return error;
 1494                 if (c->type != T_E1)
 1495                         return EINVAL;
 1496                 s = splimp ();
 1497                 CP_LOCK (bd);
 1498                 cp_set_crc4 (c, *(int*)data);
 1499                 CP_UNLOCK (bd);
 1500                 splx (s);
 1501                 return 0;
 1502 
 1503         case SERIAL_GETCLK:
 1504                 CP_DEBUG2 (d, ("ioctl: getclk\n"));
 1505                 if (c->type != T_E1 &&
 1506                     c->type != T_G703 &&
 1507                     c->type != T_E3 &&
 1508                     c->type != T_T3 &&
 1509                     c->type != T_STS1)
 1510                         return EINVAL;
 1511                 switch (c->gsyn) {
 1512                 default:        *(int*)data = E1CLK_INTERNAL;           break;
 1513                 case GSYN_RCV:  *(int*)data = E1CLK_RECEIVE;            break;
 1514                 case GSYN_RCV0: *(int*)data = E1CLK_RECEIVE_CHAN0;      break;
 1515                 case GSYN_RCV1: *(int*)data = E1CLK_RECEIVE_CHAN1;      break;
 1516                 case GSYN_RCV2: *(int*)data = E1CLK_RECEIVE_CHAN2;      break;
 1517                 case GSYN_RCV3: *(int*)data = E1CLK_RECEIVE_CHAN3;      break;
 1518                 }
 1519                 return 0;
 1520 
 1521         case SERIAL_SETCLK:
 1522                 CP_DEBUG2 (d, ("ioctl: setclk\n"));
 1523                 /* Only for superuser! */
 1524                 error = priv_check (td, PRIV_DRIVER);
 1525                 if (error)
 1526                         return error;
 1527                 if (c->type != T_E1 &&
 1528                     c->type != T_G703 &&
 1529                     c->type != T_E3 &&
 1530                     c->type != T_T3 &&
 1531                     c->type != T_STS1)
 1532                         return EINVAL;
 1533                 s = splimp ();
 1534                 CP_LOCK (bd);
 1535                 switch (*(int*)data) {
 1536                 default:                  cp_set_gsyn (c, GSYN_INT);  break;
 1537                 case E1CLK_RECEIVE:       cp_set_gsyn (c, GSYN_RCV);  break;
 1538                 case E1CLK_RECEIVE_CHAN0: cp_set_gsyn (c, GSYN_RCV0); break;
 1539                 case E1CLK_RECEIVE_CHAN1: cp_set_gsyn (c, GSYN_RCV1); break;
 1540                 case E1CLK_RECEIVE_CHAN2: cp_set_gsyn (c, GSYN_RCV2); break;
 1541                 case E1CLK_RECEIVE_CHAN3: cp_set_gsyn (c, GSYN_RCV3); break;
 1542                 }
 1543                 CP_UNLOCK (bd);
 1544                 splx (s);
 1545                 return 0;
 1546 
 1547         case SERIAL_GETTIMESLOTS:
 1548                 CP_DEBUG2 (d, ("ioctl: gettimeslots\n"));
 1549                 if ((c->type != T_E1 || c->unfram) && c->type != T_DATA)
 1550                         return EINVAL;
 1551                 *(u_long*)data = c->ts;
 1552                 return 0;
 1553 
 1554         case SERIAL_SETTIMESLOTS:
 1555                 CP_DEBUG2 (d, ("ioctl: settimeslots\n"));
 1556                 /* Only for superuser! */
 1557                 error = priv_check (td, PRIV_DRIVER);
 1558                 if (error)
 1559                         return error;
 1560                 if ((c->type != T_E1 || c->unfram) && c->type != T_DATA)
 1561                         return EINVAL;
 1562                 s = splimp ();
 1563                 CP_LOCK (bd);
 1564                 cp_set_ts (c, *(u_long*)data);
 1565                 CP_UNLOCK (bd);
 1566                 splx (s);
 1567                 return 0;
 1568 
 1569         case SERIAL_GETINVCLK:
 1570                 CP_DEBUG2 (d, ("ioctl: getinvclk\n"));
 1571 #if 1
 1572                 return EINVAL;
 1573 #else
 1574                 if (c->type != T_SERIAL)
 1575                         return EINVAL;
 1576                 *(int*)data = c->invtxc;
 1577                 return 0;
 1578 #endif
 1579 
 1580         case SERIAL_SETINVCLK:
 1581                 CP_DEBUG2 (d, ("ioctl: setinvclk\n"));
 1582                 /* Only for superuser! */
 1583                 error = priv_check (td, PRIV_DRIVER);
 1584                 if (error)
 1585                         return error;
 1586                 if (c->type != T_SERIAL)
 1587                         return EINVAL;
 1588                 s = splimp ();
 1589                 CP_LOCK (bd);
 1590                 cp_set_invtxc (c, *(int*)data);
 1591                 cp_set_invrxc (c, *(int*)data);
 1592                 CP_UNLOCK (bd);
 1593                 splx (s);
 1594                 return 0;
 1595 
 1596         case SERIAL_GETINVTCLK:
 1597                 CP_DEBUG2 (d, ("ioctl: getinvtclk\n"));
 1598                 if (c->type != T_SERIAL)
 1599                         return EINVAL;
 1600                 *(int*)data = c->invtxc;
 1601                 return 0;
 1602 
 1603         case SERIAL_SETINVTCLK:
 1604                 CP_DEBUG2 (d, ("ioctl: setinvtclk\n"));
 1605                 /* Only for superuser! */
 1606                 error = priv_check (td, PRIV_DRIVER);
 1607                 if (error)
 1608                         return error;
 1609                 if (c->type != T_SERIAL)
 1610                         return EINVAL;
 1611                 s = splimp ();
 1612                 CP_LOCK (bd);
 1613                 cp_set_invtxc (c, *(int*)data);
 1614                 CP_UNLOCK (bd);
 1615                 splx (s);
 1616                 return 0;
 1617 
 1618         case SERIAL_GETINVRCLK:
 1619                 CP_DEBUG2 (d, ("ioctl: getinvrclk\n"));
 1620                 if (c->type != T_SERIAL)
 1621                         return EINVAL;
 1622                 *(int*)data = c->invrxc;
 1623                 return 0;
 1624 
 1625         case SERIAL_SETINVRCLK:
 1626                 CP_DEBUG2 (d, ("ioctl: setinvrclk\n"));
 1627                 /* Only for superuser! */
 1628                 error = priv_check (td, PRIV_DRIVER);
 1629                 if (error)
 1630                         return error;
 1631                 if (c->type != T_SERIAL)
 1632                         return EINVAL;
 1633                 s = splimp ();
 1634                 CP_LOCK (bd);
 1635                 cp_set_invrxc (c, *(int*)data);
 1636                 CP_UNLOCK (bd);
 1637                 splx (s);
 1638                 return 0;
 1639 
 1640         case SERIAL_GETLEVEL:
 1641                 CP_DEBUG2 (d, ("ioctl: getlevel\n"));
 1642                 if (c->type != T_G703)
 1643                         return EINVAL;
 1644                 s = splimp ();
 1645                 CP_LOCK (bd);
 1646                 *(int*)data = cp_get_lq (c);
 1647                 CP_UNLOCK (bd);
 1648                 splx (s);
 1649                 return 0;
 1650 
 1651 #if 0
 1652         case SERIAL_RESET:
 1653                 CP_DEBUG2 (d, ("ioctl: reset\n"));
 1654                 /* Only for superuser! */
 1655                 error = priv_check (td, PRIV_DRIVER);
 1656                 if (error)
 1657                         return error;
 1658                 s = splimp ();
 1659                 CP_LOCK (bd);
 1660                 cp_reset (c->board, 0, 0);
 1661                 CP_UNLOCK (bd);
 1662                 splx (s);
 1663                 return 0;
 1664 
 1665         case SERIAL_HARDRESET:
 1666                 CP_DEBUG2 (d, ("ioctl: hardreset\n"));
 1667                 /* Only for superuser! */
 1668                 error = priv_check (td, PRIV_DRIVER);
 1669                 if (error)
 1670                         return error;
 1671                 s = splimp ();
 1672                 CP_LOCK (bd);
 1673                 /* hard_reset (c->board); */
 1674                 CP_UNLOCK (bd);
 1675                 splx (s);
 1676                 return 0;
 1677 #endif
 1678 
 1679         case SERIAL_GETCABLE:
 1680                 CP_DEBUG2 (d, ("ioctl: getcable\n"));
 1681                 if (c->type != T_SERIAL)
 1682                         return EINVAL;
 1683                 s = splimp ();
 1684                 CP_LOCK (bd);
 1685                 *(int*)data = cp_get_cable (c);
 1686                 CP_UNLOCK (bd);
 1687                 splx (s);
 1688                 return 0;
 1689 
 1690         case SERIAL_GETDIR:
 1691                 CP_DEBUG2 (d, ("ioctl: getdir\n"));
 1692                 if (c->type != T_E1 && c->type != T_DATA)
 1693                         return EINVAL;
 1694                 *(int*)data = c->dir;
 1695                 return 0;
 1696 
 1697         case SERIAL_SETDIR:
 1698                 CP_DEBUG2 (d, ("ioctl: setdir\n"));
 1699                 /* Only for superuser! */
 1700                 error = priv_check (td, PRIV_DRIVER);
 1701                 if (error)
 1702                         return error;
 1703                 s = splimp ();
 1704                 CP_LOCK (bd);
 1705                 cp_set_dir (c, *(int*)data);
 1706                 CP_UNLOCK (bd);
 1707                 splx (s);
 1708                 return 0;
 1709 
 1710         case SERIAL_GETRLOOP:
 1711                 CP_DEBUG2 (d, ("ioctl: getrloop\n"));
 1712                 if (c->type != T_G703 &&
 1713                     c->type != T_E3 &&
 1714                     c->type != T_T3 &&
 1715                     c->type != T_STS1)
 1716                         return EINVAL;
 1717                 *(int*)data = cp_get_rloop (c);
 1718                 return 0;
 1719 
 1720         case SERIAL_SETRLOOP:
 1721                 CP_DEBUG2 (d, ("ioctl: setloop\n"));
 1722                 if (c->type != T_E3 && c->type != T_T3 && c->type != T_STS1)
 1723                         return EINVAL;
 1724                 /* Only for superuser! */
 1725                 error = priv_check (td, PRIV_DRIVER);
 1726                 if (error)
 1727                         return error;
 1728                 s = splimp ();
 1729                 CP_LOCK (bd);
 1730                 cp_set_rloop (c, *(int*)data);
 1731                 CP_UNLOCK (bd);
 1732                 splx (s);
 1733                 return 0;
 1734 
 1735         case SERIAL_GETCABLEN:
 1736                 CP_DEBUG2 (d, ("ioctl: getcablen\n"));
 1737                 if (c->type != T_T3 && c->type != T_STS1)
 1738                         return EINVAL;
 1739                 *(int*)data = c->cablen;
 1740                 return 0;
 1741 
 1742         case SERIAL_SETCABLEN:
 1743                 CP_DEBUG2 (d, ("ioctl: setloop\n"));
 1744                 if (c->type != T_T3 && c->type != T_STS1)
 1745                         return EINVAL;
 1746                 /* Only for superuser! */
 1747                 error = priv_check (td, PRIV_DRIVER);
 1748                 if (error)
 1749                         return error;
 1750                 s = splimp ();
 1751                 CP_LOCK (bd);
 1752                 cp_set_cablen (c, *(int*)data);
 1753                 CP_UNLOCK (bd);
 1754                 splx (s);
 1755                 return 0;
 1756 
 1757         case TIOCSDTR:  /* Set DTR */
 1758                 s = splimp ();
 1759                 CP_LOCK (bd);
 1760                 cp_set_dtr (c, 1);
 1761                 CP_UNLOCK (bd);
 1762                 splx (s);
 1763                 return 0;
 1764 
 1765         case TIOCCDTR:  /* Clear DTR */
 1766                 s = splimp ();
 1767                 CP_LOCK (bd);
 1768                 cp_set_dtr (c, 0);
 1769                 CP_UNLOCK (bd);
 1770                 splx (s);
 1771                 return 0;
 1772 
 1773         case TIOCMSET:  /* Set DTR/RTS */
 1774                 s = splimp ();
 1775                 CP_LOCK (bd);
 1776                 cp_set_dtr (c, (*(int*)data & TIOCM_DTR) ? 1 : 0);
 1777                 cp_set_rts (c, (*(int*)data & TIOCM_RTS) ? 1 : 0);
 1778                 CP_UNLOCK (bd);
 1779                 splx (s);
 1780                 return 0;
 1781 
 1782         case TIOCMBIS:  /* Add DTR/RTS */
 1783                 s = splimp ();
 1784                 CP_LOCK (bd);
 1785                 if (*(int*)data & TIOCM_DTR) cp_set_dtr (c, 1);
 1786                 if (*(int*)data & TIOCM_RTS) cp_set_rts (c, 1);
 1787                 CP_UNLOCK (bd);
 1788                 splx (s);
 1789                 return 0;
 1790 
 1791         case TIOCMBIC:  /* Clear DTR/RTS */
 1792                 s = splimp ();
 1793                 CP_LOCK (bd);
 1794                 if (*(int*)data & TIOCM_DTR) cp_set_dtr (c, 0);
 1795                 if (*(int*)data & TIOCM_RTS) cp_set_rts (c, 0);
 1796                 CP_UNLOCK (bd);
 1797                 splx (s);
 1798                 return 0;
 1799 
 1800         case TIOCMGET:  /* Get modem status */
 1801                 *(int*)data = cp_modem_status (c);
 1802                 return 0;
 1803         }
 1804         return ENOTTY;
 1805 }
 1806 
 1807 #ifdef NETGRAPH
 1808 static int ng_cp_constructor (node_p node)
 1809 {
 1810         drv_t *d = NG_NODE_PRIVATE (node);
 1811         CP_DEBUG (d, ("Constructor\n"));
 1812         return EINVAL;
 1813 }
 1814 
 1815 static int ng_cp_newhook (node_p node, hook_p hook, const char *name)
 1816 {
 1817         int s;
 1818         drv_t *d = NG_NODE_PRIVATE (node);
 1819         bdrv_t *bd = d->board->sys;
 1820 
 1821         CP_DEBUG (d, ("Newhook\n"));
 1822         /* Attach debug hook */
 1823         if (strcmp (name, NG_CP_HOOK_DEBUG) == 0) {
 1824                 NG_HOOK_SET_PRIVATE (hook, NULL);
 1825                 d->debug_hook = hook;
 1826                 return 0;
 1827         }
 1828 
 1829         /* Check for raw hook */
 1830         if (strcmp (name, NG_CP_HOOK_RAW) != 0)
 1831                 return EINVAL;
 1832 
 1833         NG_HOOK_SET_PRIVATE (hook, d);
 1834         d->hook = hook;
 1835         s = splimp ();
 1836         CP_LOCK (bd);
 1837         cp_up (d);
 1838         CP_UNLOCK (bd);
 1839         splx (s);
 1840         return 0;
 1841 }
 1842 
 1843 static char *format_timeslots (u_long s)
 1844 {
 1845         static char buf [100];
 1846         char *p = buf;
 1847         int i;
 1848 
 1849         for (i=1; i<32; ++i)
 1850                 if ((s >> i) & 1) {
 1851                         int prev = (i > 1)  & (s >> (i-1));
 1852                         int next = (i < 31) & (s >> (i+1));
 1853 
 1854                         if (prev) {
 1855                                 if (next)
 1856                                         continue;
 1857                                 *p++ = '-';
 1858                         } else if (p > buf)
 1859                                 *p++ = ',';
 1860 
 1861                         if (i >= 10)
 1862                                 *p++ = '' + i / 10;
 1863                         *p++ = '' + i % 10;
 1864                 }
 1865         *p = 0;
 1866         return buf;
 1867 }
 1868 
 1869 static int print_modems (char *s, cp_chan_t *c, int need_header)
 1870 {
 1871         int status = cp_modem_status (c);
 1872         int length = 0;
 1873 
 1874         if (need_header)
 1875                 length += sprintf (s + length, "  LE   DTR  DSR  RTS  CTS  CD\n");
 1876         length += sprintf (s + length, "%4s %4s %4s %4s %4s %4s\n",
 1877                 status & TIOCM_LE  ? "On" : "-",
 1878                 status & TIOCM_DTR ? "On" : "-",
 1879                 status & TIOCM_DSR ? "On" : "-",
 1880                 status & TIOCM_RTS ? "On" : "-",
 1881                 status & TIOCM_CTS ? "On" : "-",
 1882                 status & TIOCM_CD  ? "On" : "-");
 1883         return length;
 1884 }
 1885 
 1886 static int print_stats (char *s, cp_chan_t *c, int need_header)
 1887 {
 1888         int length = 0;
 1889 
 1890         if (need_header)
 1891                 length += sprintf (s + length, "  Rintr   Tintr   Mintr   Ibytes   Ipkts   Ierrs   Obytes   Opkts   Oerrs\n");
 1892         length += sprintf (s + length, "%7ld %7ld %7ld %8lu %7ld %7ld %8lu %7ld %7ld\n",
 1893                 c->rintr, c->tintr, 0l, (unsigned long) c->ibytes,
 1894                 c->ipkts, c->overrun + c->frame + c->crc,
 1895                 (unsigned long) c->obytes, c->opkts, c->underrun);
 1896         return length;
 1897 }
 1898 
 1899 static char *format_e1_status (u_char status)
 1900 {
 1901         static char buf [80];
 1902 
 1903         if (status & E1_NOALARM)
 1904                 return "Ok";
 1905         buf[0] = 0;
 1906         if (status & E1_LOS)     strcat (buf, ",LOS");
 1907         if (status & E1_AIS)     strcat (buf, ",AIS");
 1908         if (status & E1_LOF)     strcat (buf, ",LOF");
 1909         if (status & E1_LOMF)    strcat (buf, ",LOMF");
 1910         if (status & E1_FARLOF)  strcat (buf, ",FARLOF");
 1911         if (status & E1_AIS16)   strcat (buf, ",AIS16");
 1912         if (status & E1_FARLOMF) strcat (buf, ",FARLOMF");
 1913         if (status & E1_TSTREQ)  strcat (buf, ",TSTREQ");
 1914         if (status & E1_TSTERR)  strcat (buf, ",TSTERR");
 1915         if (buf[0] == ',')
 1916                 return buf+1;
 1917         return "Unknown";
 1918 }
 1919 
 1920 static int print_frac (char *s, int leftalign, u_long numerator, u_long divider)
 1921 {
 1922         int n, length = 0;
 1923 
 1924         if (numerator < 1 || divider < 1) {
 1925                 length += sprintf (s+length, leftalign ? "/-   " : "    -");
 1926                 return length;
 1927         }
 1928         n = (int) (0.5 + 1000.0 * numerator / divider);
 1929         if (n < 1000) {
 1930                 length += sprintf (s+length, leftalign ? "/.%-3d" : " .%03d", n);
 1931                 return length;
 1932         }
 1933         *(s + length) = leftalign ? '/' : ' ';
 1934         length ++;
 1935 
 1936         if      (n >= 1000000) n = (n+500) / 1000 * 1000;
 1937         else if (n >= 100000)  n = (n+50)  / 100 * 100;
 1938         else if (n >= 10000)   n = (n+5)   / 10 * 10;
 1939 
 1940         switch (n) {
 1941         case 1000:    length += printf (s+length, ".999"); return length;
 1942         case 10000:   n = 9990;   break;
 1943         case 100000:  n = 99900;  break;
 1944         case 1000000: n = 999000; break;
 1945         }
 1946         if (n < 10000)        length += sprintf (s+length, "%d.%d", n/1000, n/10%100);
 1947         else if (n < 100000)  length += sprintf (s+length, "%d.%d", n/1000, n/100%10);
 1948         else if (n < 1000000) length += sprintf (s+length, "%d.", n/1000);
 1949         else                  length += sprintf (s+length, "%d", n/1000);
 1950 
 1951         return length;
 1952 }
 1953 
 1954 static int print_e1_stats (char *s, cp_chan_t *c)
 1955 {
 1956         struct e1_counters total;
 1957         u_long totsec;
 1958         int length = 0;
 1959 
 1960         totsec          = c->totsec + c->cursec;
 1961         total.bpv       = c->total.bpv   + c->currnt.bpv;
 1962         total.fse       = c->total.fse   + c->currnt.fse;
 1963         total.crce      = c->total.crce  + c->currnt.crce;
 1964         total.rcrce     = c->total.rcrce + c->currnt.rcrce;
 1965         total.uas       = c->total.uas   + c->currnt.uas;
 1966         total.les       = c->total.les   + c->currnt.les;
 1967         total.es        = c->total.es    + c->currnt.es;
 1968         total.bes       = c->total.bes   + c->currnt.bes;
 1969         total.ses       = c->total.ses   + c->currnt.ses;
 1970         total.oofs      = c->total.oofs  + c->currnt.oofs;
 1971         total.css       = c->total.css   + c->currnt.css;
 1972         total.dm        = c->total.dm    + c->currnt.dm;
 1973 
 1974         length += sprintf (s + length, " Unav/Degr  Bpv/Fsyn  CRC/RCRC  Err/Lerr  Sev/Bur   Oof/Slp  Status\n");
 1975 
 1976         /* Unavailable seconds, degraded minutes */
 1977         length += print_frac (s + length, 0, c->currnt.uas, c->cursec);
 1978         length += print_frac (s + length, 1, 60 * c->currnt.dm, c->cursec);
 1979 
 1980         /* Bipolar violations, frame sync errors */
 1981         length += print_frac (s + length, 0, c->currnt.bpv, c->cursec);
 1982         length += print_frac (s + length, 1, c->currnt.fse, c->cursec);
 1983 
 1984         /* CRC errors, remote CRC errors (E-bit) */
 1985         length += print_frac (s + length, 0, c->currnt.crce, c->cursec);
 1986         length += print_frac (s + length, 1, c->currnt.rcrce, c->cursec);
 1987 
 1988         /* Errored seconds, line errored seconds */
 1989         length += print_frac (s + length, 0, c->currnt.es, c->cursec);
 1990         length += print_frac (s + length, 1, c->currnt.les, c->cursec);
 1991 
 1992         /* Severely errored seconds, burst errored seconds */
 1993         length += print_frac (s + length, 0, c->currnt.ses, c->cursec);
 1994         length += print_frac (s + length, 1, c->currnt.bes, c->cursec);
 1995 
 1996         /* Out of frame seconds, controlled slip seconds */
 1997         length += print_frac (s + length, 0, c->currnt.oofs, c->cursec);
 1998         length += print_frac (s + length, 1, c->currnt.css, c->cursec);
 1999 
 2000         length += sprintf (s + length, " %s\n", format_e1_status (c->status));
 2001 
 2002         /* Print total statistics. */
 2003         length += print_frac (s + length, 0, total.uas, totsec);
 2004         length += print_frac (s + length, 1, 60 * total.dm, totsec);
 2005 
 2006         length += print_frac (s + length, 0, total.bpv, totsec);
 2007         length += print_frac (s + length, 1, total.fse, totsec);
 2008 
 2009         length += print_frac (s + length, 0, total.crce, totsec);
 2010         length += print_frac (s + length, 1, total.rcrce, totsec);
 2011 
 2012         length += print_frac (s + length, 0, total.es, totsec);
 2013         length += print_frac (s + length, 1, total.les, totsec);
 2014 
 2015         length += print_frac (s + length, 0, total.ses, totsec);
 2016         length += print_frac (s + length, 1, total.bes, totsec);
 2017 
 2018         length += print_frac (s + length, 0, total.oofs, totsec);
 2019         length += print_frac (s + length, 1, total.css, totsec);
 2020 
 2021         length += sprintf (s + length, " -- Total\n");
 2022         return length;
 2023 }
 2024 
 2025 static int print_chan (char *s, cp_chan_t *c)
 2026 {
 2027         drv_t *d = c->sys;
 2028         bdrv_t *bd = d->board->sys;
 2029         int length = 0;
 2030 
 2031         length += sprintf (s + length, "cp%d", c->board->num * NCHAN + c->num);
 2032         if (d->chan->debug)
 2033                 length += sprintf (s + length, " debug=%d", d->chan->debug);
 2034 
 2035         if (c->board->mux) {
 2036                 length += sprintf (s + length, " cfg=C");
 2037         } else {
 2038                 length += sprintf (s + length, " cfg=A");
 2039         }
 2040 
 2041         if (c->baud)
 2042                 length += sprintf (s + length, " %ld", c->baud);
 2043         else
 2044                 length += sprintf (s + length, " extclock");
 2045 
 2046         if (c->type == T_E1 || c->type == T_G703)
 2047                 switch (c->gsyn) {
 2048                 case GSYN_INT   : length += sprintf (s + length, " syn=int");     break;
 2049                 case GSYN_RCV   : length += sprintf (s + length, " syn=rcv");     break;
 2050                 case GSYN_RCV0  : length += sprintf (s + length, " syn=rcv0");    break;
 2051                 case GSYN_RCV1  : length += sprintf (s + length, " syn=rcv1");    break;
 2052                 case GSYN_RCV2  : length += sprintf (s + length, " syn=rcv2");    break;
 2053                 case GSYN_RCV3  : length += sprintf (s + length, " syn=rcv3");    break;
 2054                 }
 2055         if (c->type == T_SERIAL) {
 2056                 length += sprintf (s + length, " dpll=%s",   c->dpll   ? "on" : "off");
 2057                 length += sprintf (s + length, " nrzi=%s",   c->nrzi   ? "on" : "off");
 2058                 length += sprintf (s + length, " invclk=%s", c->invtxc ? "on" : "off");
 2059         }
 2060         if (c->type == T_E1)
 2061                 length += sprintf (s + length, " higain=%s", c->higain ? "on" : "off");
 2062 
 2063         length += sprintf (s + length, " loop=%s", c->lloop ? "on" : "off");
 2064 
 2065         if (c->type == T_E1)
 2066                 length += sprintf (s + length, " ts=%s", format_timeslots (c->ts));
 2067         if (c->type == T_G703) {
 2068                 int lq, x;
 2069 
 2070                 x = splimp ();
 2071                 CP_LOCK (bd);
 2072                 lq = cp_get_lq (c);
 2073                 CP_UNLOCK (bd);
 2074                 splx (x);
 2075                 length += sprintf (s + length, " (level=-%.1fdB)", lq / 10.0);
 2076         }
 2077         length += sprintf (s + length, "\n");
 2078         return length;
 2079 }
 2080 
 2081 static int ng_cp_rcvmsg (node_p node, item_p item, hook_p lasthook)
 2082 {
 2083         drv_t *d = NG_NODE_PRIVATE (node);
 2084         struct ng_mesg *msg;
 2085         struct ng_mesg *resp = NULL;
 2086         int error = 0;
 2087 
 2088         CP_DEBUG (d, ("Rcvmsg\n"));
 2089         NGI_GET_MSG (item, msg);
 2090         switch (msg->header.typecookie) {
 2091         default:
 2092                 error = EINVAL;
 2093                 break;
 2094 
 2095         case NGM_CP_COOKIE:
 2096                 printf ("Not implemented yet\n");
 2097                 error = EINVAL;
 2098                 break;
 2099 
 2100         case NGM_GENERIC_COOKIE:
 2101                 switch (msg->header.cmd) {
 2102                 default:
 2103                         error = EINVAL;
 2104                         break;
 2105 
 2106                 case NGM_TEXT_STATUS: {
 2107                         char *s;
 2108                         int l = 0;
 2109                         int dl = sizeof (struct ng_mesg) + 730;
 2110 
 2111                         NG_MKRESPONSE (resp, msg, dl, M_NOWAIT);
 2112                         if (! resp) {
 2113                                 error = ENOMEM;
 2114                                 break;
 2115                         }
 2116                         s = (resp)->data;
 2117                         if (d) {
 2118                         l += print_chan (s + l, d->chan);
 2119                         l += print_stats (s + l, d->chan, 1);
 2120                         l += print_modems (s + l, d->chan, 1);
 2121                         l += print_e1_stats (s + l, d->chan);
 2122                         } else
 2123                                 l += sprintf (s + l, "Error: node not connect to channel");
 2124                         strncpy ((resp)->header.cmdstr, "status", NG_CMDSTRSIZ);
 2125                         }
 2126                         break;
 2127                 }
 2128                 break;
 2129         }
 2130         NG_RESPOND_MSG (error, node, item, resp);
 2131         NG_FREE_MSG (msg);
 2132         return error;
 2133 }
 2134 
 2135 static int ng_cp_rcvdata (hook_p hook, item_p item)
 2136 {
 2137         drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE(hook));
 2138         struct mbuf *m;
 2139         struct ng_tag_prio *ptag;
 2140         bdrv_t *bd = d->board->sys;
 2141         struct ifqueue *q;
 2142         int s;
 2143 
 2144         CP_DEBUG2 (d, ("Rcvdata\n"));
 2145         NGI_GET_M (item, m);
 2146         NG_FREE_ITEM (item);
 2147         if (! NG_HOOK_PRIVATE (hook) || ! d) {
 2148                 NG_FREE_M (m);
 2149                 return ENETDOWN;
 2150         }
 2151 
 2152         /* Check for high priority data */
 2153         if ((ptag = (struct ng_tag_prio *)m_tag_locate(m, NGM_GENERIC_COOKIE,
 2154             NG_TAG_PRIO, NULL)) != NULL && (ptag->priority > NG_PRIO_CUTOFF) )
 2155                 q = &d->hi_queue;
 2156         else
 2157                 q = &d->queue;
 2158 
 2159         s = splimp ();
 2160         CP_LOCK (bd);
 2161         IF_LOCK (q);
 2162         if (_IF_QFULL (q)) {
 2163                 _IF_DROP (q);
 2164                 IF_UNLOCK (q);
 2165                 CP_UNLOCK (bd);
 2166                 splx (s);
 2167                 NG_FREE_M (m);
 2168                 return ENOBUFS;
 2169         }
 2170         _IF_ENQUEUE (q, m);
 2171         IF_UNLOCK (q);
 2172         cp_start (d);
 2173         CP_UNLOCK (bd);
 2174         splx (s);
 2175         return 0;
 2176 }
 2177 
 2178 static int ng_cp_rmnode (node_p node)
 2179 {
 2180         drv_t *d = NG_NODE_PRIVATE (node);
 2181 
 2182         CP_DEBUG (d, ("Rmnode\n"));
 2183         if (d && d->running) {
 2184                 bdrv_t *bd = d->board->sys;
 2185                 int s = splimp ();
 2186                 CP_LOCK (bd);
 2187                 cp_down (d);
 2188                 CP_UNLOCK (bd);
 2189                 splx (s);
 2190         }
 2191 #ifdef  KLD_MODULE
 2192         if (node->nd_flags & NGF_REALLY_DIE) {
 2193                 NG_NODE_SET_PRIVATE (node, NULL);
 2194                 NG_NODE_UNREF (node);
 2195         }
 2196         NG_NODE_REVIVE(node);           /* Persistant node */
 2197 #endif
 2198         return 0;
 2199 }
 2200 
 2201 static void ng_cp_watchdog (void *arg)
 2202 {
 2203         drv_t *d = arg;
 2204 
 2205         if (d) {
 2206                 if (d->timeout == 1)
 2207                         cp_watchdog (d);
 2208                 if (d->timeout)
 2209                         d->timeout--;
 2210                 callout_reset (&d->timeout_handle, hz, ng_cp_watchdog, d);
 2211         }
 2212 }
 2213 
 2214 static int ng_cp_connect (hook_p hook)
 2215 {
 2216         drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
 2217 
 2218         if (d) {
 2219                 CP_DEBUG (d, ("Connect\n"));
 2220                 callout_reset (&d->timeout_handle, hz, ng_cp_watchdog, d);
 2221         }
 2222         
 2223         return 0;
 2224 }
 2225 
 2226 static int ng_cp_disconnect (hook_p hook)
 2227 {
 2228         drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
 2229 
 2230         if (d) {
 2231                 CP_DEBUG (d, ("Disconnect\n"));
 2232                 if (NG_HOOK_PRIVATE (hook))
 2233                 {
 2234                         bdrv_t *bd = d->board->sys;
 2235                         int s = splimp ();
 2236                         CP_LOCK (bd);
 2237                         cp_down (d);
 2238                         CP_UNLOCK (bd);
 2239                         splx (s);
 2240                 }
 2241                 /* If we were wait it than it reasserted now, just stop it. */
 2242                 if (!callout_drain (&d->timeout_handle))
 2243                         callout_stop (&d->timeout_handle);
 2244         }
 2245         return 0;
 2246 }
 2247 #endif
 2248 
 2249 static int cp_modevent (module_t mod, int type, void *unused)
 2250 {
 2251         static int load_count = 0;
 2252 
 2253         switch (type) {
 2254         case MOD_LOAD:
 2255 #ifdef NETGRAPH
 2256                 if (ng_newtype (&typestruct))
 2257                         printf ("Failed to register ng_cp\n");
 2258 #endif
 2259                 ++load_count;
 2260                 callout_init (&timeout_handle, CALLOUT_MPSAFE);
 2261                 callout_reset (&timeout_handle, hz*5, cp_timeout, 0);
 2262                 break;
 2263         case MOD_UNLOAD:
 2264                 if (load_count == 1) {
 2265                         printf ("Removing device entry for Tau-PCI\n");
 2266 #ifdef NETGRAPH
 2267                         ng_rmtype (&typestruct);
 2268 #endif                  
 2269                 }
 2270                 /* If we were wait it than it reasserted now, just stop it.
 2271                  * Actually we shouldn't get this condition. But code could be
 2272                  * changed in the future, so just be a litle paranoid.
 2273                  */
 2274                 if (!callout_drain (&timeout_handle))
 2275                         callout_stop (&timeout_handle);
 2276                 --load_count;
 2277                 break;
 2278         case MOD_SHUTDOWN:
 2279                 break;
 2280         }
 2281         return 0;
 2282 }
 2283 
 2284 #ifdef NETGRAPH
 2285 static struct ng_type typestruct = {
 2286         .version        = NG_ABI_VERSION,
 2287         .name           = NG_CP_NODE_TYPE,
 2288         .constructor    = ng_cp_constructor,
 2289         .rcvmsg         = ng_cp_rcvmsg,
 2290         .shutdown       = ng_cp_rmnode,
 2291         .newhook        = ng_cp_newhook,
 2292         .connect        = ng_cp_connect,
 2293         .rcvdata        = ng_cp_rcvdata,
 2294         .disconnect     = ng_cp_disconnect,
 2295 };
 2296 #endif /*NETGRAPH*/
 2297 
 2298 #ifdef NETGRAPH
 2299 MODULE_DEPEND (ng_cp, netgraph, NG_ABI_VERSION, NG_ABI_VERSION, NG_ABI_VERSION);
 2300 #else
 2301 MODULE_DEPEND (cp, sppp, 1, 1, 1);
 2302 #endif
 2303 DRIVER_MODULE (cp, pci, cp_driver, cp_devclass, cp_modevent, NULL);
 2304 MODULE_VERSION (cp, 1);

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