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/9.0/sys/dev/cp/if_cp.c 213795 2010-10-13 17:38:23Z rpaulo $");
   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 #else
  121         struct  ifqueue queue;
  122         struct  ifnet *ifp;
  123 #endif
  124         short   timeout;
  125         struct  callout timeout_handle;
  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 static void cp_watchdog_timer (void *arg);
  155 #ifdef NETGRAPH
  156 extern struct ng_type typestruct;
  157 #else
  158 static void cp_ifstart (struct ifnet *ifp);
  159 static void cp_tlf (struct sppp *sp);
  160 static void cp_tls (struct sppp *sp);
  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                 callout_init (&d->timeout_handle, CALLOUT_MPSAFE);
  494 #ifdef NETGRAPH
  495                 if (ng_make_node_common (&typestruct, &d->node) != 0) {
  496                         printf ("%s: cannot make common node\n", d->name);
  497                         d->node = NULL;
  498                         continue;
  499                 }
  500                 NG_NODE_SET_PRIVATE (d->node, d);
  501                 sprintf (d->nodename, "%s%d", NG_CP_NODE_TYPE,
  502                          c->board->num*NCHAN + c->num);
  503                 if (ng_name_node (d->node, d->nodename)) {
  504                         printf ("%s: cannot name node\n", d->nodename);
  505                         NG_NODE_UNREF (d->node);
  506                         continue;
  507                 }
  508                 d->queue.ifq_maxlen = ifqmaxlen;
  509                 d->hi_queue.ifq_maxlen = ifqmaxlen;
  510                 mtx_init (&d->queue.ifq_mtx, "cp_queue", NULL, MTX_DEF);
  511                 mtx_init (&d->hi_queue.ifq_mtx, "cp_queue_hi", NULL, MTX_DEF);
  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_init         = cp_initialize;
  525                 d->queue.ifq_maxlen     = NRBUF;
  526                 mtx_init (&d->queue.ifq_mtx, "cp_queue", NULL, MTX_DEF);
  527                 sppp_attach (d->ifp);
  528                 if_attach (d->ifp);
  529                 IFP2SP(d->ifp)->pp_tlf  = cp_tlf;
  530                 IFP2SP(d->ifp)->pp_tls  = cp_tls;
  531                 /* If BPF is in the kernel, call the attach for it.
  532                  * The header size of PPP or Cisco/HDLC is 4 bytes. */
  533                 bpfattach (d->ifp, DLT_PPP, 4);
  534 #endif /*NETGRAPH*/
  535                 cp_start_e1 (c);
  536                 cp_start_chan (c, 1, 1, d->dmamem.virt, d->dmamem.phys);
  537 
  538                 /* Register callback functions. */
  539                 cp_register_transmit (c, &cp_transmit);
  540                 cp_register_receive (c, &cp_receive);
  541                 cp_register_error (c, &cp_error);
  542                 d->devt = make_dev (&cp_cdevsw, b->num*NCHAN+c->num, UID_ROOT,
  543                                 GID_WHEEL, 0600, "cp%d", b->num*NCHAN+c->num);
  544         }
  545         CP_LOCK (bd);
  546         b->sys = bd;
  547         adapter[unit] = b;
  548         CP_UNLOCK (bd);
  549         splx (s);
  550         return 0;
  551 }
  552 
  553 static int cp_detach (device_t dev)
  554 {
  555         bdrv_t *bd = device_get_softc (dev);
  556         cp_board_t *b = bd->board;
  557         cp_chan_t *c;
  558         int s;
  559 
  560         KASSERT (mtx_initialized (&bd->cp_mtx), ("cp mutex not initialized"));
  561         s = splimp ();
  562         CP_LOCK (bd);
  563         /* Check if the device is busy (open). */
  564         for (c = b->chan; c < b->chan + NCHAN; ++c) {
  565                 drv_t *d = (drv_t*) c->sys;
  566 
  567                 if (! d || ! d->chan->type)
  568                         continue;
  569                 if (d->running) {
  570                         CP_UNLOCK (bd);
  571                         splx (s);
  572                         return EBUSY;
  573                 }
  574         }
  575 
  576         /* Ok, we can unload driver */
  577         /* At first we should stop all channels */
  578         for (c = b->chan; c < b->chan + NCHAN; ++c) {
  579                 drv_t *d = (drv_t*) c->sys;
  580 
  581                 if (! d || ! d->chan->type)
  582                         continue;
  583 
  584                 cp_stop_chan (c);
  585                 cp_stop_e1 (c);
  586                 cp_set_dtr (d->chan, 0);
  587                 cp_set_rts (d->chan, 0);
  588         }
  589 
  590         /* Reset the adapter. */
  591         cp_destroy = 1;
  592         cp_interrupt_poll (b, 1);
  593         cp_led_off (b);
  594         cp_reset (b, 0 ,0);
  595         callout_stop (&led_timo[b->num]);
  596 
  597         /* Disable the interrupt request. */
  598         bus_teardown_intr (dev, bd->cp_irq, bd->cp_intrhand);
  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                 callout_stop (&d->timeout_handle);
  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         for (c = b->chan; c < b->chan + NCHAN; ++c) {
  643                 drv_t *d = (drv_t*) c->sys;
  644 
  645                 if (! d || ! d->chan->type)
  646                         continue;
  647                 callout_drain (&d->timeout_handle);
  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         mtx_destroy (&bd->cp_mtx);
  656         return 0;
  657 }
  658 
  659 #ifndef NETGRAPH
  660 static void cp_ifstart (struct ifnet *ifp)
  661 {
  662         drv_t *d = ifp->if_softc;
  663         bdrv_t *bd = d->board->sys;
  664 
  665         CP_LOCK (bd);
  666         cp_start (d);
  667         CP_UNLOCK (bd);
  668 }
  669 
  670 static void cp_tlf (struct sppp *sp)
  671 {
  672         drv_t *d = SP2IFP(sp)->if_softc;
  673 
  674         CP_DEBUG2 (d, ("cp_tlf\n"));
  675         /* XXXRIK: Don't forget to protect them by LOCK, or kill them. */
  676 /*      cp_set_dtr (d->chan, 0);*/
  677 /*      cp_set_rts (d->chan, 0);*/
  678         if (!(sp->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO))
  679                 sp->pp_down (sp);
  680 }
  681 
  682 static void cp_tls (struct sppp *sp)
  683 {
  684         drv_t *d = SP2IFP(sp)->if_softc;
  685 
  686         CP_DEBUG2 (d, ("cp_tls\n"));
  687         if (!(sp->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO))
  688                 sp->pp_up (sp);
  689 }
  690 
  691 /*
  692  * Process an ioctl request.
  693  */
  694 static int cp_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data)
  695 {
  696         drv_t *d = ifp->if_softc;
  697         bdrv_t *bd = d->board->sys;
  698         int error, s, was_up, should_be_up;
  699 
  700         was_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
  701         error = sppp_ioctl (ifp, cmd, data);
  702 
  703         if (error)
  704                 return error;
  705 
  706         if (! (ifp->if_flags & IFF_DEBUG))
  707                 d->chan->debug = 0;
  708         else
  709                 d->chan->debug = d->chan->debug_shadow;
  710 
  711         switch (cmd) {
  712         default:           CP_DEBUG2 (d, ("ioctl 0x%lx\n", cmd));   return 0;
  713         case SIOCADDMULTI: CP_DEBUG2 (d, ("ioctl SIOCADDMULTI\n")); return 0;
  714         case SIOCDELMULTI: CP_DEBUG2 (d, ("ioctl SIOCDELMULTI\n")); return 0;
  715         case SIOCSIFFLAGS: CP_DEBUG2 (d, ("ioctl SIOCSIFFLAGS\n")); break;
  716         case SIOCSIFADDR:  CP_DEBUG2 (d, ("ioctl SIOCSIFADDR\n"));  break;
  717         }
  718 
  719         /* We get here only in case of SIFFLAGS or SIFADDR. */
  720         s = splimp ();
  721         CP_LOCK (bd);
  722         should_be_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
  723         if (! was_up && should_be_up) {
  724                 /* Interface goes up -- start it. */
  725                 cp_up (d);
  726                 cp_start (d);
  727         } else if (was_up && ! should_be_up) {
  728                 /* Interface is going down -- stop it. */
  729 /*              if ((IFP2SP(ifp)->pp_flags & PP_FR) || (ifp->if_flags & PP_CISCO))*/
  730                 cp_down (d);
  731         }
  732         CP_DEBUG (d, ("ioctl 0x%lx p4\n", cmd));
  733         CP_UNLOCK (bd);
  734         splx (s);
  735         return 0;
  736 }
  737 
  738 /*
  739  * Initialization of interface.
  740  * It seems to be never called by upper level?
  741  */
  742 static void cp_initialize (void *softc)
  743 {
  744         drv_t *d = softc;
  745 
  746         CP_DEBUG (d, ("cp_initialize\n"));
  747 }
  748 #endif /*NETGRAPH*/
  749 
  750 /*
  751  * Stop the interface.  Called on splimp().
  752  */
  753 static void cp_down (drv_t *d)
  754 {
  755         CP_DEBUG (d, ("cp_down\n"));
  756         /* Interface is going down -- stop it. */
  757         cp_set_dtr (d->chan, 0);
  758         cp_set_rts (d->chan, 0);
  759 
  760         d->running = 0;
  761         callout_stop (&d->timeout_handle);
  762 }
  763 
  764 /*
  765  * Start the interface.  Called on splimp().
  766  */
  767 static void cp_up (drv_t *d)
  768 {
  769         CP_DEBUG (d, ("cp_up\n"));
  770         cp_set_dtr (d->chan, 1);
  771         cp_set_rts (d->chan, 1);
  772         d->running = 1;
  773 }
  774 
  775 /*
  776  * Start output on the interface.  Get another datagram to send
  777  * off of the interface queue, and copy it to the interface
  778  * before starting the output.
  779  */
  780 static void cp_send (drv_t *d)
  781 {
  782         struct mbuf *m;
  783         u_short len;
  784 
  785         CP_DEBUG2 (d, ("cp_send, tn=%d te=%d\n", d->chan->tn, d->chan->te));
  786 
  787         /* No output if the interface is down. */
  788         if (! d->running)
  789                 return;
  790 
  791         /* No output if the modem is off. */
  792         if (! (d->chan->lloop || d->chan->type != T_SERIAL ||
  793                 cp_get_dsr (d->chan)))
  794                 return;
  795 
  796         while (cp_transmit_space (d->chan)) {
  797                 /* Get the packet to send. */
  798 #ifdef NETGRAPH
  799                 IF_DEQUEUE (&d->hi_queue, m);
  800                 if (! m)
  801                         IF_DEQUEUE (&d->queue, m);
  802 #else
  803                 m = sppp_dequeue (d->ifp);
  804 #endif
  805                 if (! m)
  806                         return;
  807 #ifndef NETGRAPH
  808                 BPF_MTAP (d->ifp, m);
  809 #endif
  810                 len = m_length (m, NULL);
  811                 if (len >= BUFSZ)
  812                         printf ("%s: too long packet: %d bytes: ",
  813                                 d->name, len);
  814                 else if (! m->m_next)
  815                         cp_send_packet (d->chan, (u_char*) mtod (m, caddr_t), len, 0);
  816                 else {
  817                         u_char *buf = d->chan->tbuf[d->chan->te];
  818                         m_copydata (m, 0, len, buf);
  819                         cp_send_packet (d->chan, buf, len, 0);
  820                 }
  821                 m_freem (m);
  822                 /* Set up transmit timeout, if the transmit ring is not empty.*/
  823                 d->timeout = 10;
  824         }
  825 #ifndef NETGRAPH
  826         d->ifp->if_drv_flags |= IFF_DRV_OACTIVE;
  827 #endif
  828 }
  829 
  830 /*
  831  * Start output on the interface.
  832  * Always called on splimp().
  833  */
  834 static void cp_start (drv_t *d)
  835 {
  836         if (d->running) {
  837                 if (! d->chan->dtr)
  838                         cp_set_dtr (d->chan, 1);
  839                 if (! d->chan->rts)
  840                         cp_set_rts (d->chan, 1);
  841                 cp_send (d);
  842                 callout_reset (&d->timeout_handle, hz, cp_watchdog_timer, d);
  843         }
  844 }
  845 
  846 /*
  847  * Handle transmit timeouts.
  848  * Recover after lost transmit interrupts.
  849  * Always called on splimp().
  850  */
  851 static void cp_watchdog (drv_t *d)
  852 {
  853         CP_DEBUG (d, ("device timeout\n"));
  854         if (d->running) {
  855                 cp_stop_chan (d->chan);
  856                 cp_stop_e1 (d->chan);
  857                 cp_start_e1 (d->chan);
  858                 cp_start_chan (d->chan, 1, 1, 0, 0);
  859                 cp_set_dtr (d->chan, 1);
  860                 cp_set_rts (d->chan, 1);
  861                 cp_start (d);
  862         }
  863 }
  864 
  865 static void cp_watchdog_timer (void *arg)
  866 {
  867         drv_t *d = arg;
  868         bdrv_t *bd = d->board->sys;
  869 
  870         CP_LOCK (bd);
  871         if (d->timeout == 1)
  872                 cp_watchdog (d);
  873         if (d->timeout)
  874                 d->timeout--;
  875         callout_reset (&d->timeout_handle, hz, cp_watchdog_timer, d);
  876         CP_UNLOCK (bd);
  877 }
  878 
  879 static void cp_transmit (cp_chan_t *c, void *attachment, int len)
  880 {
  881         drv_t *d = c->sys;
  882 
  883         d->timeout = 0;
  884 #ifndef NETGRAPH
  885         ++d->ifp->if_opackets;
  886         d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
  887 #endif
  888         cp_start (d);
  889 }
  890 
  891 static void cp_receive (cp_chan_t *c, unsigned char *data, int len)
  892 {
  893         drv_t *d = c->sys;
  894         struct mbuf *m;
  895 #ifdef NETGRAPH
  896         int error;
  897 #endif
  898 
  899         if (! d->running)
  900                 return;
  901 
  902         m = makembuf (data, len);
  903         if (! m) {
  904                 CP_DEBUG (d, ("no memory for packet\n"));
  905 #ifndef NETGRAPH
  906                 ++d->ifp->if_iqdrops;
  907 #endif
  908                 return;
  909         }
  910         if (c->debug > 1)
  911                 printmbuf (m);
  912 #ifdef NETGRAPH
  913         m->m_pkthdr.rcvif = 0;
  914         NG_SEND_DATA_ONLY (error, d->hook, m);
  915 #else
  916         ++d->ifp->if_ipackets;
  917         m->m_pkthdr.rcvif = d->ifp;
  918         /* Check if there's a BPF listener on this interface.
  919          * If so, hand off the raw packet to bpf. */
  920         BPF_TAP (d->ifp, data, len);
  921         IF_ENQUEUE (&d->queue, m);
  922 #endif
  923 }
  924 
  925 static void cp_error (cp_chan_t *c, int data)
  926 {
  927         drv_t *d = c->sys;
  928 
  929         switch (data) {
  930         case CP_FRAME:
  931                 CP_DEBUG (d, ("frame error\n"));
  932 #ifndef NETGRAPH
  933                 ++d->ifp->if_ierrors;
  934 #endif
  935                 break;
  936         case CP_CRC:
  937                 CP_DEBUG (d, ("crc error\n"));
  938 #ifndef NETGRAPH
  939                 ++d->ifp->if_ierrors;
  940 #endif
  941                 break;
  942         case CP_OVERRUN:
  943                 CP_DEBUG (d, ("overrun error\n"));
  944 #ifndef NETGRAPH
  945                 ++d->ifp->if_collisions;
  946                 ++d->ifp->if_ierrors;
  947 #endif
  948                 break;
  949         case CP_OVERFLOW:
  950                 CP_DEBUG (d, ("overflow error\n"));
  951 #ifndef NETGRAPH
  952                 ++d->ifp->if_ierrors;
  953 #endif
  954                 break;
  955         case CP_UNDERRUN:
  956                 CP_DEBUG (d, ("underrun error\n"));
  957                 d->timeout = 0;
  958 #ifndef NETGRAPH
  959                 ++d->ifp->if_oerrors;
  960                 d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
  961 #endif
  962                 cp_start (d);
  963                 break;
  964         default:
  965                 CP_DEBUG (d, ("error #%d\n", data));
  966                 break;
  967         }
  968 }
  969 
  970 /*
  971  * You also need read, write, open, close routines.
  972  * This should get you started
  973  */
  974 static int cp_open (struct cdev *dev, int oflags, int devtype, struct thread *td)
  975 {
  976         int unit = dev2unit (dev);
  977         drv_t *d;
  978 
  979         if (unit >= NBRD*NCHAN || ! (d = channel[unit]))
  980                 return ENXIO;
  981         CP_DEBUG2 (d, ("cp_open\n"));
  982         return 0;
  983 }
  984 
  985 /*
  986  * Only called on the LAST close.
  987  */
  988 static int cp_close (struct cdev *dev, int fflag, int devtype, struct thread *td)
  989 {
  990         drv_t *d = channel [dev2unit (dev)];
  991 
  992         CP_DEBUG2 (d, ("cp_close\n"));
  993         return 0;
  994 }
  995 
  996 static int cp_modem_status (cp_chan_t *c)
  997 {
  998         drv_t *d = c->sys;
  999         bdrv_t *bd = d->board->sys;
 1000         int status, s;
 1001 
 1002         status = d->running ? TIOCM_LE : 0;
 1003         s = splimp ();
 1004         CP_LOCK (bd);
 1005         if (cp_get_cd  (c)) status |= TIOCM_CD;
 1006         if (cp_get_cts (c)) status |= TIOCM_CTS;
 1007         if (cp_get_dsr (c)) status |= TIOCM_DSR;
 1008         if (c->dtr)         status |= TIOCM_DTR;
 1009         if (c->rts)         status |= TIOCM_RTS;
 1010         CP_UNLOCK (bd);
 1011         splx (s);
 1012         return status;
 1013 }
 1014 
 1015 static int cp_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
 1016 {
 1017         drv_t *d = channel [dev2unit (dev)];
 1018         bdrv_t *bd = d->board->sys;
 1019         cp_chan_t *c = d->chan;
 1020         struct serial_statistics *st;
 1021         struct e1_statistics *opte1;
 1022         struct e3_statistics *opte3;
 1023         int error, s;
 1024         char mask[16];
 1025 
 1026         switch (cmd) {
 1027         case SERIAL_GETREGISTERED:
 1028                 CP_DEBUG2 (d, ("ioctl: getregistered\n"));
 1029                 bzero (mask, sizeof(mask));
 1030                 for (s=0; s<NBRD*NCHAN; ++s)
 1031                         if (channel [s])
 1032                                 mask [s/8] |= 1 << (s & 7);
 1033                 bcopy (mask, data, sizeof (mask));
 1034                 return 0;
 1035 
 1036 #ifndef NETGRAPH
 1037         case SERIAL_GETPROTO:
 1038                 CP_DEBUG2 (d, ("ioctl: getproto\n"));
 1039                 strcpy ((char*)data, (IFP2SP(d->ifp)->pp_flags & PP_FR) ? "fr" :
 1040                         (d->ifp->if_flags & PP_CISCO) ? "cisco" : "ppp");
 1041                 return 0;
 1042 
 1043         case SERIAL_SETPROTO:
 1044                 CP_DEBUG2 (d, ("ioctl: setproto\n"));
 1045                 /* Only for superuser! */
 1046                 error = priv_check (td, PRIV_DRIVER);
 1047                 if (error)
 1048                         return error;
 1049                 if (d->ifp->if_drv_flags & IFF_DRV_RUNNING)
 1050                         return EBUSY;
 1051                 if (! strcmp ("cisco", (char*)data)) {
 1052                         IFP2SP(d->ifp)->pp_flags &= ~(PP_FR);
 1053                         IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
 1054                         d->ifp->if_flags |= PP_CISCO;
 1055                 } else if (! strcmp ("fr", (char*)data) && PP_FR) {
 1056                         d->ifp->if_flags &= ~(PP_CISCO);
 1057                         IFP2SP(d->ifp)->pp_flags |= PP_FR | PP_KEEPALIVE;
 1058                 } else if (! strcmp ("ppp", (char*)data)) {
 1059                         IFP2SP(d->ifp)->pp_flags &= ~PP_FR;
 1060                         IFP2SP(d->ifp)->pp_flags &= ~PP_KEEPALIVE;
 1061                         d->ifp->if_flags &= ~(PP_CISCO);
 1062                 } else
 1063                         return EINVAL;
 1064                 return 0;
 1065 
 1066         case SERIAL_GETKEEPALIVE:
 1067                 CP_DEBUG2 (d, ("ioctl: getkeepalive\n"));
 1068                 if ((IFP2SP(d->ifp)->pp_flags & PP_FR) ||
 1069                         (d->ifp->if_flags & PP_CISCO))
 1070                         return EINVAL;
 1071                 *(int*)data = (IFP2SP(d->ifp)->pp_flags & PP_KEEPALIVE) ? 1 : 0;
 1072                 return 0;
 1073 
 1074         case SERIAL_SETKEEPALIVE:
 1075                 CP_DEBUG2 (d, ("ioctl: setkeepalive\n"));
 1076                 /* Only for superuser! */
 1077                 error = priv_check (td, PRIV_DRIVER);
 1078                 if (error)
 1079                         return error;
 1080                 if ((IFP2SP(d->ifp)->pp_flags & PP_FR) ||
 1081                         (d->ifp->if_flags & PP_CISCO))
 1082                         return EINVAL;
 1083                 s = splimp ();
 1084                 CP_LOCK (bd);
 1085                 if (*(int*)data)
 1086                         IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
 1087                 else
 1088                         IFP2SP(d->ifp)->pp_flags &= ~PP_KEEPALIVE;
 1089                 CP_UNLOCK (bd);
 1090                 splx (s);
 1091                 return 0;
 1092 #endif /*NETGRAPH*/
 1093 
 1094         case SERIAL_GETMODE:
 1095                 CP_DEBUG2 (d, ("ioctl: getmode\n"));
 1096                 *(int*)data = SERIAL_HDLC;
 1097                 return 0;
 1098 
 1099         case SERIAL_SETMODE:
 1100                 /* Only for superuser! */
 1101                 error = priv_check (td, PRIV_DRIVER);
 1102                 if (error)
 1103                         return error;
 1104                 if (*(int*)data != SERIAL_HDLC)
 1105                         return EINVAL;
 1106                 return 0;
 1107 
 1108         case SERIAL_GETCFG:
 1109                 CP_DEBUG2 (d, ("ioctl: getcfg\n"));
 1110                 if (c->type != T_E1 || c->unfram)
 1111                         return EINVAL;
 1112                 *(char*)data = c->board->mux ? 'c' : 'a';
 1113                 return 0;
 1114 
 1115         case SERIAL_SETCFG:
 1116                 CP_DEBUG2 (d, ("ioctl: setcfg\n"));
 1117                 error = priv_check (td, PRIV_DRIVER);
 1118                 if (error)
 1119                         return error;
 1120                 if (c->type != T_E1)
 1121                         return EINVAL;
 1122                 s = splimp ();
 1123                 CP_LOCK (bd);
 1124                 cp_set_mux (c->board, *((char*)data) == 'c');
 1125                 CP_UNLOCK (bd);
 1126                 splx (s);
 1127                 return 0;
 1128 
 1129         case SERIAL_GETSTAT:
 1130                 CP_DEBUG2 (d, ("ioctl: getstat\n"));
 1131                 st = (struct serial_statistics*) data;
 1132                 st->rintr  = c->rintr;
 1133                 st->tintr  = c->tintr;
 1134                 st->mintr  = 0;
 1135                 st->ibytes = c->ibytes;
 1136                 st->ipkts  = c->ipkts;
 1137                 st->obytes = c->obytes;
 1138                 st->opkts  = c->opkts;
 1139                 st->ierrs  = c->overrun + c->frame + c->crc;
 1140                 st->oerrs  = c->underrun;
 1141                 return 0;
 1142 
 1143         case SERIAL_GETESTAT:
 1144                 CP_DEBUG2 (d, ("ioctl: getestat\n"));
 1145                 if (c->type != T_E1 && c->type != T_G703)
 1146                         return EINVAL;
 1147                 opte1 = (struct e1_statistics*) data;
 1148                 opte1->status       = c->status;
 1149                 opte1->cursec       = c->cursec;
 1150                 opte1->totsec       = c->totsec + c->cursec;
 1151 
 1152                 opte1->currnt.bpv   = c->currnt.bpv;
 1153                 opte1->currnt.fse   = c->currnt.fse;
 1154                 opte1->currnt.crce  = c->currnt.crce;
 1155                 opte1->currnt.rcrce = c->currnt.rcrce;
 1156                 opte1->currnt.uas   = c->currnt.uas;
 1157                 opte1->currnt.les   = c->currnt.les;
 1158                 opte1->currnt.es    = c->currnt.es;
 1159                 opte1->currnt.bes   = c->currnt.bes;
 1160                 opte1->currnt.ses   = c->currnt.ses;
 1161                 opte1->currnt.oofs  = c->currnt.oofs;
 1162                 opte1->currnt.css   = c->currnt.css;
 1163                 opte1->currnt.dm    = c->currnt.dm;
 1164 
 1165                 opte1->total.bpv    = c->total.bpv   + c->currnt.bpv;
 1166                 opte1->total.fse    = c->total.fse   + c->currnt.fse;
 1167                 opte1->total.crce   = c->total.crce  + c->currnt.crce;
 1168                 opte1->total.rcrce  = c->total.rcrce + c->currnt.rcrce;
 1169                 opte1->total.uas    = c->total.uas   + c->currnt.uas;
 1170                 opte1->total.les    = c->total.les   + c->currnt.les;
 1171                 opte1->total.es     = c->total.es    + c->currnt.es;
 1172                 opte1->total.bes    = c->total.bes   + c->currnt.bes;
 1173                 opte1->total.ses    = c->total.ses   + c->currnt.ses;
 1174                 opte1->total.oofs   = c->total.oofs  + c->currnt.oofs;
 1175                 opte1->total.css    = c->total.css   + c->currnt.css;
 1176                 opte1->total.dm     = c->total.dm    + c->currnt.dm;
 1177                 for (s=0; s<48; ++s) {
 1178                         opte1->interval[s].bpv   = c->interval[s].bpv;
 1179                         opte1->interval[s].fse   = c->interval[s].fse;
 1180                         opte1->interval[s].crce  = c->interval[s].crce;
 1181                         opte1->interval[s].rcrce = c->interval[s].rcrce;
 1182                         opte1->interval[s].uas   = c->interval[s].uas;
 1183                         opte1->interval[s].les   = c->interval[s].les;
 1184                         opte1->interval[s].es    = c->interval[s].es;
 1185                         opte1->interval[s].bes   = c->interval[s].bes;
 1186                         opte1->interval[s].ses   = c->interval[s].ses;
 1187                         opte1->interval[s].oofs  = c->interval[s].oofs;
 1188                         opte1->interval[s].css   = c->interval[s].css;
 1189                         opte1->interval[s].dm    = c->interval[s].dm;
 1190                 }
 1191                 return 0;
 1192 
 1193         case SERIAL_GETE3STAT:
 1194                 CP_DEBUG2 (d, ("ioctl: gete3stat\n"));
 1195                 if (c->type != T_E3 && c->type != T_T3 && c->type != T_STS1)
 1196                         return EINVAL;
 1197                 opte3 = (struct e3_statistics*) data;
 1198 
 1199                 opte3->status = c->e3status;
 1200                 opte3->cursec = (c->e3csec_5 * 2 + 1) / 10;
 1201                 opte3->totsec = c->e3tsec + opte3->cursec;
 1202 
 1203                 opte3->ccv = c->e3ccv;
 1204                 opte3->tcv = c->e3tcv + opte3->ccv;
 1205 
 1206                 for (s = 0; s < 48; ++s) {
 1207                         opte3->icv[s] = c->e3icv[s];
 1208                 }
 1209                 return 0;
 1210                 
 1211         case SERIAL_CLRSTAT:
 1212                 CP_DEBUG2 (d, ("ioctl: clrstat\n"));
 1213                 /* Only for superuser! */
 1214                 error = priv_check (td, PRIV_DRIVER);
 1215                 if (error)
 1216                         return error;
 1217                 c->rintr    = 0;
 1218                 c->tintr    = 0;
 1219                 c->ibytes   = 0;
 1220                 c->obytes   = 0;
 1221                 c->ipkts    = 0;
 1222                 c->opkts    = 0;
 1223                 c->overrun  = 0;
 1224                 c->frame    = 0;
 1225                 c->crc      = 0;
 1226                 c->underrun = 0;
 1227                 bzero (&c->currnt, sizeof (c->currnt));
 1228                 bzero (&c->total, sizeof (c->total));
 1229                 bzero (c->interval, sizeof (c->interval));
 1230                 c->e3ccv    = 0;
 1231                 c->e3tcv    = 0;
 1232                 bzero (c->e3icv, sizeof (c->e3icv));
 1233                 return 0;
 1234 
 1235         case SERIAL_GETBAUD:
 1236                 CP_DEBUG2 (d, ("ioctl: getbaud\n"));
 1237                 *(long*)data = c->baud;
 1238                 return 0;
 1239 
 1240         case SERIAL_SETBAUD:
 1241                 CP_DEBUG2 (d, ("ioctl: setbaud\n"));
 1242                 /* Only for superuser! */
 1243                 error = priv_check (td, PRIV_DRIVER);
 1244                 if (error)
 1245                         return error;
 1246                 s = splimp ();
 1247                 CP_LOCK (bd);
 1248                 cp_set_baud (c, *(long*)data);
 1249                 CP_UNLOCK (bd);
 1250                 splx (s);
 1251                 return 0;
 1252 
 1253         case SERIAL_GETLOOP:
 1254                 CP_DEBUG2 (d, ("ioctl: getloop\n"));
 1255                 *(int*)data = c->lloop;
 1256                 return 0;
 1257 
 1258         case SERIAL_SETLOOP:
 1259                 CP_DEBUG2 (d, ("ioctl: setloop\n"));
 1260                 /* Only for superuser! */
 1261                 error = priv_check (td, PRIV_DRIVER);
 1262                 if (error)
 1263                         return error;
 1264                 s = splimp ();
 1265                 CP_LOCK (bd);
 1266                 cp_set_lloop (c, *(int*)data);
 1267                 CP_UNLOCK (bd);
 1268                 splx (s);
 1269                 return 0;
 1270 
 1271         case SERIAL_GETDPLL:
 1272                 CP_DEBUG2 (d, ("ioctl: getdpll\n"));
 1273                 if (c->type != T_SERIAL)
 1274                         return EINVAL;
 1275                 *(int*)data = c->dpll;
 1276                 return 0;
 1277 
 1278         case SERIAL_SETDPLL:
 1279                 CP_DEBUG2 (d, ("ioctl: setdpll\n"));
 1280                 /* Only for superuser! */
 1281                 error = priv_check (td, PRIV_DRIVER);
 1282                 if (error)
 1283                         return error;
 1284                 if (c->type != T_SERIAL)
 1285                         return EINVAL;
 1286                 s = splimp ();
 1287                 CP_LOCK (bd);
 1288                 cp_set_dpll (c, *(int*)data);
 1289                 CP_UNLOCK (bd);
 1290                 splx (s);
 1291                 return 0;
 1292 
 1293         case SERIAL_GETNRZI:
 1294                 CP_DEBUG2 (d, ("ioctl: getnrzi\n"));
 1295                 if (c->type != T_SERIAL)
 1296                         return EINVAL;
 1297                 *(int*)data = c->nrzi;
 1298                 return 0;
 1299 
 1300         case SERIAL_SETNRZI:
 1301                 CP_DEBUG2 (d, ("ioctl: setnrzi\n"));
 1302                 /* Only for superuser! */
 1303                 error = priv_check (td, PRIV_DRIVER);
 1304                 if (error)
 1305                         return error;
 1306                 if (c->type != T_SERIAL)
 1307                         return EINVAL;
 1308                 s = splimp ();
 1309                 CP_LOCK (bd);
 1310                 cp_set_nrzi (c, *(int*)data);
 1311                 CP_UNLOCK (bd);
 1312                 splx (s);
 1313                 return 0;
 1314 
 1315         case SERIAL_GETDEBUG:
 1316                 CP_DEBUG2 (d, ("ioctl: getdebug\n"));
 1317                 *(int*)data = d->chan->debug;
 1318                 return 0;
 1319 
 1320         case SERIAL_SETDEBUG:
 1321                 CP_DEBUG2 (d, ("ioctl: setdebug\n"));
 1322                 /* Only for superuser! */
 1323                 error = priv_check (td, PRIV_DRIVER);
 1324                 if (error)
 1325                         return error;
 1326 #ifndef NETGRAPH
 1327                 /*
 1328                  * The debug_shadow is always greater than zero for logic 
 1329                  * simplicity.  For switching debug off the IFF_DEBUG is
 1330                  * responsible.
 1331                  */
 1332                 d->chan->debug_shadow = (*(int*)data) ? (*(int*)data) : 1;
 1333                 if (d->ifp->if_flags & IFF_DEBUG)
 1334                         d->chan->debug = d->chan->debug_shadow;
 1335 #else
 1336                 d->chan->debug = *(int*)data;
 1337 #endif
 1338                 return 0;
 1339 
 1340         case SERIAL_GETHIGAIN:
 1341                 CP_DEBUG2 (d, ("ioctl: gethigain\n"));
 1342                 if (c->type != T_E1)
 1343                         return EINVAL;
 1344                 *(int*)data = c->higain;
 1345                 return 0;
 1346 
 1347         case SERIAL_SETHIGAIN:
 1348                 CP_DEBUG2 (d, ("ioctl: sethigain\n"));
 1349                 /* Only for superuser! */
 1350                 error = priv_check (td, PRIV_DRIVER);
 1351                 if (error)
 1352                         return error;
 1353                 if (c->type != T_E1)
 1354                         return EINVAL;
 1355                 s = splimp ();
 1356                 CP_LOCK (bd);
 1357                 cp_set_higain (c, *(int*)data);
 1358                 CP_UNLOCK (bd);
 1359                 splx (s);
 1360                 return 0;
 1361 
 1362         case SERIAL_GETPHONY:
 1363                 CP_DEBUG2 (d, ("ioctl: getphony\n"));
 1364                 if (c->type != T_E1)
 1365                         return EINVAL;
 1366                 *(int*)data = c->phony;
 1367                 return 0;
 1368 
 1369         case SERIAL_SETPHONY:
 1370                 CP_DEBUG2 (d, ("ioctl: setphony\n"));
 1371                 /* Only for superuser! */
 1372                 error = priv_check (td, PRIV_DRIVER);
 1373                 if (error)
 1374                         return error;
 1375                 if (c->type != T_E1)
 1376                         return EINVAL;
 1377                 s = splimp ();
 1378                 CP_LOCK (bd);
 1379                 cp_set_phony (c, *(int*)data);
 1380                 CP_UNLOCK (bd);
 1381                 splx (s);
 1382                 return 0;
 1383 
 1384         case SERIAL_GETUNFRAM:
 1385                 CP_DEBUG2 (d, ("ioctl: getunfram\n"));
 1386                 if (c->type != T_E1)
 1387                         return EINVAL;
 1388                 *(int*)data = c->unfram;
 1389                 return 0;
 1390 
 1391         case SERIAL_SETUNFRAM:
 1392                 CP_DEBUG2 (d, ("ioctl: setunfram\n"));
 1393                 /* Only for superuser! */
 1394                 error = priv_check (td, PRIV_DRIVER);
 1395                 if (error)
 1396                         return error;
 1397                 if (c->type != T_E1)
 1398                         return EINVAL;
 1399                 s = splimp ();
 1400                 CP_LOCK (bd);
 1401                 cp_set_unfram (c, *(int*)data);
 1402                 CP_UNLOCK (bd);
 1403                 splx (s);
 1404                 return 0;
 1405 
 1406         case SERIAL_GETSCRAMBLER:
 1407                 CP_DEBUG2 (d, ("ioctl: getscrambler\n"));
 1408                 if (c->type != T_G703 && !c->unfram)
 1409                         return EINVAL;
 1410                 *(int*)data = c->scrambler;
 1411                 return 0;
 1412 
 1413         case SERIAL_SETSCRAMBLER:
 1414                 CP_DEBUG2 (d, ("ioctl: setscrambler\n"));
 1415                 /* Only for superuser! */
 1416                 error = priv_check (td, PRIV_DRIVER);
 1417                 if (error)
 1418                         return error;
 1419                 if (c->type != T_G703 && !c->unfram)
 1420                         return EINVAL;
 1421                 s = splimp ();
 1422                 CP_LOCK (bd);
 1423                 cp_set_scrambler (c, *(int*)data);
 1424                 CP_UNLOCK (bd);
 1425                 splx (s);
 1426                 return 0;
 1427 
 1428         case SERIAL_GETMONITOR:
 1429                 CP_DEBUG2 (d, ("ioctl: getmonitor\n"));
 1430                 if (c->type != T_E1 &&
 1431                     c->type != T_E3 &&
 1432                     c->type != T_T3 &&
 1433                     c->type != T_STS1)
 1434                         return EINVAL;
 1435                 *(int*)data = c->monitor;
 1436                 return 0;
 1437 
 1438         case SERIAL_SETMONITOR:
 1439                 CP_DEBUG2 (d, ("ioctl: setmonitor\n"));
 1440                 /* Only for superuser! */
 1441                 error = priv_check (td, PRIV_DRIVER);
 1442                 if (error)
 1443                         return error;
 1444                 if (c->type != T_E1)
 1445                         return EINVAL;
 1446                 s = splimp ();
 1447                 CP_LOCK (bd);
 1448                 cp_set_monitor (c, *(int*)data);
 1449                 CP_UNLOCK (bd);
 1450                 splx (s);
 1451                 return 0;
 1452 
 1453         case SERIAL_GETUSE16:
 1454                 CP_DEBUG2 (d, ("ioctl: getuse16\n"));
 1455                 if (c->type != T_E1 || c->unfram)
 1456                         return EINVAL;
 1457                 *(int*)data = c->use16;
 1458                 return 0;
 1459 
 1460         case SERIAL_SETUSE16:
 1461                 CP_DEBUG2 (d, ("ioctl: setuse16\n"));
 1462                 /* Only for superuser! */
 1463                 error = priv_check (td, PRIV_DRIVER);
 1464                 if (error)
 1465                         return error;
 1466                 if (c->type != T_E1)
 1467                         return EINVAL;
 1468                 s = splimp ();
 1469                 CP_LOCK (bd);
 1470                 cp_set_use16 (c, *(int*)data);
 1471                 CP_UNLOCK (bd);
 1472                 splx (s);
 1473                 return 0;
 1474 
 1475         case SERIAL_GETCRC4:
 1476                 CP_DEBUG2 (d, ("ioctl: getcrc4\n"));
 1477                 if (c->type != T_E1 || c->unfram)
 1478                         return EINVAL;
 1479                 *(int*)data = c->crc4;
 1480                 return 0;
 1481 
 1482         case SERIAL_SETCRC4:
 1483                 CP_DEBUG2 (d, ("ioctl: setcrc4\n"));
 1484                 /* Only for superuser! */
 1485                 error = priv_check (td, PRIV_DRIVER);
 1486                 if (error)
 1487                         return error;
 1488                 if (c->type != T_E1)
 1489                         return EINVAL;
 1490                 s = splimp ();
 1491                 CP_LOCK (bd);
 1492                 cp_set_crc4 (c, *(int*)data);
 1493                 CP_UNLOCK (bd);
 1494                 splx (s);
 1495                 return 0;
 1496 
 1497         case SERIAL_GETCLK:
 1498                 CP_DEBUG2 (d, ("ioctl: getclk\n"));
 1499                 if (c->type != T_E1 &&
 1500                     c->type != T_G703 &&
 1501                     c->type != T_E3 &&
 1502                     c->type != T_T3 &&
 1503                     c->type != T_STS1)
 1504                         return EINVAL;
 1505                 switch (c->gsyn) {
 1506                 default:        *(int*)data = E1CLK_INTERNAL;           break;
 1507                 case GSYN_RCV:  *(int*)data = E1CLK_RECEIVE;            break;
 1508                 case GSYN_RCV0: *(int*)data = E1CLK_RECEIVE_CHAN0;      break;
 1509                 case GSYN_RCV1: *(int*)data = E1CLK_RECEIVE_CHAN1;      break;
 1510                 case GSYN_RCV2: *(int*)data = E1CLK_RECEIVE_CHAN2;      break;
 1511                 case GSYN_RCV3: *(int*)data = E1CLK_RECEIVE_CHAN3;      break;
 1512                 }
 1513                 return 0;
 1514 
 1515         case SERIAL_SETCLK:
 1516                 CP_DEBUG2 (d, ("ioctl: setclk\n"));
 1517                 /* Only for superuser! */
 1518                 error = priv_check (td, PRIV_DRIVER);
 1519                 if (error)
 1520                         return error;
 1521                 if (c->type != T_E1 &&
 1522                     c->type != T_G703 &&
 1523                     c->type != T_E3 &&
 1524                     c->type != T_T3 &&
 1525                     c->type != T_STS1)
 1526                         return EINVAL;
 1527                 s = splimp ();
 1528                 CP_LOCK (bd);
 1529                 switch (*(int*)data) {
 1530                 default:                  cp_set_gsyn (c, GSYN_INT);  break;
 1531                 case E1CLK_RECEIVE:       cp_set_gsyn (c, GSYN_RCV);  break;
 1532                 case E1CLK_RECEIVE_CHAN0: cp_set_gsyn (c, GSYN_RCV0); break;
 1533                 case E1CLK_RECEIVE_CHAN1: cp_set_gsyn (c, GSYN_RCV1); break;
 1534                 case E1CLK_RECEIVE_CHAN2: cp_set_gsyn (c, GSYN_RCV2); break;
 1535                 case E1CLK_RECEIVE_CHAN3: cp_set_gsyn (c, GSYN_RCV3); break;
 1536                 }
 1537                 CP_UNLOCK (bd);
 1538                 splx (s);
 1539                 return 0;
 1540 
 1541         case SERIAL_GETTIMESLOTS:
 1542                 CP_DEBUG2 (d, ("ioctl: gettimeslots\n"));
 1543                 if ((c->type != T_E1 || c->unfram) && c->type != T_DATA)
 1544                         return EINVAL;
 1545                 *(u_long*)data = c->ts;
 1546                 return 0;
 1547 
 1548         case SERIAL_SETTIMESLOTS:
 1549                 CP_DEBUG2 (d, ("ioctl: settimeslots\n"));
 1550                 /* Only for superuser! */
 1551                 error = priv_check (td, PRIV_DRIVER);
 1552                 if (error)
 1553                         return error;
 1554                 if ((c->type != T_E1 || c->unfram) && c->type != T_DATA)
 1555                         return EINVAL;
 1556                 s = splimp ();
 1557                 CP_LOCK (bd);
 1558                 cp_set_ts (c, *(u_long*)data);
 1559                 CP_UNLOCK (bd);
 1560                 splx (s);
 1561                 return 0;
 1562 
 1563         case SERIAL_GETINVCLK:
 1564                 CP_DEBUG2 (d, ("ioctl: getinvclk\n"));
 1565 #if 1
 1566                 return EINVAL;
 1567 #else
 1568                 if (c->type != T_SERIAL)
 1569                         return EINVAL;
 1570                 *(int*)data = c->invtxc;
 1571                 return 0;
 1572 #endif
 1573 
 1574         case SERIAL_SETINVCLK:
 1575                 CP_DEBUG2 (d, ("ioctl: setinvclk\n"));
 1576                 /* Only for superuser! */
 1577                 error = priv_check (td, PRIV_DRIVER);
 1578                 if (error)
 1579                         return error;
 1580                 if (c->type != T_SERIAL)
 1581                         return EINVAL;
 1582                 s = splimp ();
 1583                 CP_LOCK (bd);
 1584                 cp_set_invtxc (c, *(int*)data);
 1585                 cp_set_invrxc (c, *(int*)data);
 1586                 CP_UNLOCK (bd);
 1587                 splx (s);
 1588                 return 0;
 1589 
 1590         case SERIAL_GETINVTCLK:
 1591                 CP_DEBUG2 (d, ("ioctl: getinvtclk\n"));
 1592                 if (c->type != T_SERIAL)
 1593                         return EINVAL;
 1594                 *(int*)data = c->invtxc;
 1595                 return 0;
 1596 
 1597         case SERIAL_SETINVTCLK:
 1598                 CP_DEBUG2 (d, ("ioctl: setinvtclk\n"));
 1599                 /* Only for superuser! */
 1600                 error = priv_check (td, PRIV_DRIVER);
 1601                 if (error)
 1602                         return error;
 1603                 if (c->type != T_SERIAL)
 1604                         return EINVAL;
 1605                 s = splimp ();
 1606                 CP_LOCK (bd);
 1607                 cp_set_invtxc (c, *(int*)data);
 1608                 CP_UNLOCK (bd);
 1609                 splx (s);
 1610                 return 0;
 1611 
 1612         case SERIAL_GETINVRCLK:
 1613                 CP_DEBUG2 (d, ("ioctl: getinvrclk\n"));
 1614                 if (c->type != T_SERIAL)
 1615                         return EINVAL;
 1616                 *(int*)data = c->invrxc;
 1617                 return 0;
 1618 
 1619         case SERIAL_SETINVRCLK:
 1620                 CP_DEBUG2 (d, ("ioctl: setinvrclk\n"));
 1621                 /* Only for superuser! */
 1622                 error = priv_check (td, PRIV_DRIVER);
 1623                 if (error)
 1624                         return error;
 1625                 if (c->type != T_SERIAL)
 1626                         return EINVAL;
 1627                 s = splimp ();
 1628                 CP_LOCK (bd);
 1629                 cp_set_invrxc (c, *(int*)data);
 1630                 CP_UNLOCK (bd);
 1631                 splx (s);
 1632                 return 0;
 1633 
 1634         case SERIAL_GETLEVEL:
 1635                 CP_DEBUG2 (d, ("ioctl: getlevel\n"));
 1636                 if (c->type != T_G703)
 1637                         return EINVAL;
 1638                 s = splimp ();
 1639                 CP_LOCK (bd);
 1640                 *(int*)data = cp_get_lq (c);
 1641                 CP_UNLOCK (bd);
 1642                 splx (s);
 1643                 return 0;
 1644 
 1645 #if 0
 1646         case SERIAL_RESET:
 1647                 CP_DEBUG2 (d, ("ioctl: reset\n"));
 1648                 /* Only for superuser! */
 1649                 error = priv_check (td, PRIV_DRIVER);
 1650                 if (error)
 1651                         return error;
 1652                 s = splimp ();
 1653                 CP_LOCK (bd);
 1654                 cp_reset (c->board, 0, 0);
 1655                 CP_UNLOCK (bd);
 1656                 splx (s);
 1657                 return 0;
 1658 
 1659         case SERIAL_HARDRESET:
 1660                 CP_DEBUG2 (d, ("ioctl: hardreset\n"));
 1661                 /* Only for superuser! */
 1662                 error = priv_check (td, PRIV_DRIVER);
 1663                 if (error)
 1664                         return error;
 1665                 s = splimp ();
 1666                 CP_LOCK (bd);
 1667                 /* hard_reset (c->board); */
 1668                 CP_UNLOCK (bd);
 1669                 splx (s);
 1670                 return 0;
 1671 #endif
 1672 
 1673         case SERIAL_GETCABLE:
 1674                 CP_DEBUG2 (d, ("ioctl: getcable\n"));
 1675                 if (c->type != T_SERIAL)
 1676                         return EINVAL;
 1677                 s = splimp ();
 1678                 CP_LOCK (bd);
 1679                 *(int*)data = cp_get_cable (c);
 1680                 CP_UNLOCK (bd);
 1681                 splx (s);
 1682                 return 0;
 1683 
 1684         case SERIAL_GETDIR:
 1685                 CP_DEBUG2 (d, ("ioctl: getdir\n"));
 1686                 if (c->type != T_E1 && c->type != T_DATA)
 1687                         return EINVAL;
 1688                 *(int*)data = c->dir;
 1689                 return 0;
 1690 
 1691         case SERIAL_SETDIR:
 1692                 CP_DEBUG2 (d, ("ioctl: setdir\n"));
 1693                 /* Only for superuser! */
 1694                 error = priv_check (td, PRIV_DRIVER);
 1695                 if (error)
 1696                         return error;
 1697                 s = splimp ();
 1698                 CP_LOCK (bd);
 1699                 cp_set_dir (c, *(int*)data);
 1700                 CP_UNLOCK (bd);
 1701                 splx (s);
 1702                 return 0;
 1703 
 1704         case SERIAL_GETRLOOP:
 1705                 CP_DEBUG2 (d, ("ioctl: getrloop\n"));
 1706                 if (c->type != T_G703 &&
 1707                     c->type != T_E3 &&
 1708                     c->type != T_T3 &&
 1709                     c->type != T_STS1)
 1710                         return EINVAL;
 1711                 *(int*)data = cp_get_rloop (c);
 1712                 return 0;
 1713 
 1714         case SERIAL_SETRLOOP:
 1715                 CP_DEBUG2 (d, ("ioctl: setloop\n"));
 1716                 if (c->type != T_E3 && c->type != T_T3 && c->type != T_STS1)
 1717                         return EINVAL;
 1718                 /* Only for superuser! */
 1719                 error = priv_check (td, PRIV_DRIVER);
 1720                 if (error)
 1721                         return error;
 1722                 s = splimp ();
 1723                 CP_LOCK (bd);
 1724                 cp_set_rloop (c, *(int*)data);
 1725                 CP_UNLOCK (bd);
 1726                 splx (s);
 1727                 return 0;
 1728 
 1729         case SERIAL_GETCABLEN:
 1730                 CP_DEBUG2 (d, ("ioctl: getcablen\n"));
 1731                 if (c->type != T_T3 && c->type != T_STS1)
 1732                         return EINVAL;
 1733                 *(int*)data = c->cablen;
 1734                 return 0;
 1735 
 1736         case SERIAL_SETCABLEN:
 1737                 CP_DEBUG2 (d, ("ioctl: setloop\n"));
 1738                 if (c->type != T_T3 && c->type != T_STS1)
 1739                         return EINVAL;
 1740                 /* Only for superuser! */
 1741                 error = priv_check (td, PRIV_DRIVER);
 1742                 if (error)
 1743                         return error;
 1744                 s = splimp ();
 1745                 CP_LOCK (bd);
 1746                 cp_set_cablen (c, *(int*)data);
 1747                 CP_UNLOCK (bd);
 1748                 splx (s);
 1749                 return 0;
 1750 
 1751         case TIOCSDTR:  /* Set DTR */
 1752                 s = splimp ();
 1753                 CP_LOCK (bd);
 1754                 cp_set_dtr (c, 1);
 1755                 CP_UNLOCK (bd);
 1756                 splx (s);
 1757                 return 0;
 1758 
 1759         case TIOCCDTR:  /* Clear DTR */
 1760                 s = splimp ();
 1761                 CP_LOCK (bd);
 1762                 cp_set_dtr (c, 0);
 1763                 CP_UNLOCK (bd);
 1764                 splx (s);
 1765                 return 0;
 1766 
 1767         case TIOCMSET:  /* Set DTR/RTS */
 1768                 s = splimp ();
 1769                 CP_LOCK (bd);
 1770                 cp_set_dtr (c, (*(int*)data & TIOCM_DTR) ? 1 : 0);
 1771                 cp_set_rts (c, (*(int*)data & TIOCM_RTS) ? 1 : 0);
 1772                 CP_UNLOCK (bd);
 1773                 splx (s);
 1774                 return 0;
 1775 
 1776         case TIOCMBIS:  /* Add DTR/RTS */
 1777                 s = splimp ();
 1778                 CP_LOCK (bd);
 1779                 if (*(int*)data & TIOCM_DTR) cp_set_dtr (c, 1);
 1780                 if (*(int*)data & TIOCM_RTS) cp_set_rts (c, 1);
 1781                 CP_UNLOCK (bd);
 1782                 splx (s);
 1783                 return 0;
 1784 
 1785         case TIOCMBIC:  /* Clear DTR/RTS */
 1786                 s = splimp ();
 1787                 CP_LOCK (bd);
 1788                 if (*(int*)data & TIOCM_DTR) cp_set_dtr (c, 0);
 1789                 if (*(int*)data & TIOCM_RTS) cp_set_rts (c, 0);
 1790                 CP_UNLOCK (bd);
 1791                 splx (s);
 1792                 return 0;
 1793 
 1794         case TIOCMGET:  /* Get modem status */
 1795                 *(int*)data = cp_modem_status (c);
 1796                 return 0;
 1797         }
 1798         return ENOTTY;
 1799 }
 1800 
 1801 #ifdef NETGRAPH
 1802 static int ng_cp_constructor (node_p node)
 1803 {
 1804         drv_t *d = NG_NODE_PRIVATE (node);
 1805         CP_DEBUG (d, ("Constructor\n"));
 1806         return EINVAL;
 1807 }
 1808 
 1809 static int ng_cp_newhook (node_p node, hook_p hook, const char *name)
 1810 {
 1811         int s;
 1812         drv_t *d = NG_NODE_PRIVATE (node);
 1813         bdrv_t *bd = d->board->sys;
 1814 
 1815         CP_DEBUG (d, ("Newhook\n"));
 1816         /* Attach debug hook */
 1817         if (strcmp (name, NG_CP_HOOK_DEBUG) == 0) {
 1818                 NG_HOOK_SET_PRIVATE (hook, NULL);
 1819                 d->debug_hook = hook;
 1820                 return 0;
 1821         }
 1822 
 1823         /* Check for raw hook */
 1824         if (strcmp (name, NG_CP_HOOK_RAW) != 0)
 1825                 return EINVAL;
 1826 
 1827         NG_HOOK_SET_PRIVATE (hook, d);
 1828         d->hook = hook;
 1829         s = splimp ();
 1830         CP_LOCK (bd);
 1831         cp_up (d);
 1832         CP_UNLOCK (bd);
 1833         splx (s);
 1834         return 0;
 1835 }
 1836 
 1837 static char *format_timeslots (u_long s)
 1838 {
 1839         static char buf [100];
 1840         char *p = buf;
 1841         int i;
 1842 
 1843         for (i=1; i<32; ++i)
 1844                 if ((s >> i) & 1) {
 1845                         int prev = (i > 1)  & (s >> (i-1));
 1846                         int next = (i < 31) & (s >> (i+1));
 1847 
 1848                         if (prev) {
 1849                                 if (next)
 1850                                         continue;
 1851                                 *p++ = '-';
 1852                         } else if (p > buf)
 1853                                 *p++ = ',';
 1854 
 1855                         if (i >= 10)
 1856                                 *p++ = '' + i / 10;
 1857                         *p++ = '' + i % 10;
 1858                 }
 1859         *p = 0;
 1860         return buf;
 1861 }
 1862 
 1863 static int print_modems (char *s, cp_chan_t *c, int need_header)
 1864 {
 1865         int status = cp_modem_status (c);
 1866         int length = 0;
 1867 
 1868         if (need_header)
 1869                 length += sprintf (s + length, "  LE   DTR  DSR  RTS  CTS  CD\n");
 1870         length += sprintf (s + length, "%4s %4s %4s %4s %4s %4s\n",
 1871                 status & TIOCM_LE  ? "On" : "-",
 1872                 status & TIOCM_DTR ? "On" : "-",
 1873                 status & TIOCM_DSR ? "On" : "-",
 1874                 status & TIOCM_RTS ? "On" : "-",
 1875                 status & TIOCM_CTS ? "On" : "-",
 1876                 status & TIOCM_CD  ? "On" : "-");
 1877         return length;
 1878 }
 1879 
 1880 static int print_stats (char *s, cp_chan_t *c, int need_header)
 1881 {
 1882         int length = 0;
 1883 
 1884         if (need_header)
 1885                 length += sprintf (s + length, "  Rintr   Tintr   Mintr   Ibytes   Ipkts   Ierrs   Obytes   Opkts   Oerrs\n");
 1886         length += sprintf (s + length, "%7ld %7ld %7ld %8lu %7ld %7ld %8lu %7ld %7ld\n",
 1887                 c->rintr, c->tintr, 0l, (unsigned long) c->ibytes,
 1888                 c->ipkts, c->overrun + c->frame + c->crc,
 1889                 (unsigned long) c->obytes, c->opkts, c->underrun);
 1890         return length;
 1891 }
 1892 
 1893 static char *format_e1_status (u_char status)
 1894 {
 1895         static char buf [80];
 1896 
 1897         if (status & E1_NOALARM)
 1898                 return "Ok";
 1899         buf[0] = 0;
 1900         if (status & E1_LOS)     strcat (buf, ",LOS");
 1901         if (status & E1_AIS)     strcat (buf, ",AIS");
 1902         if (status & E1_LOF)     strcat (buf, ",LOF");
 1903         if (status & E1_LOMF)    strcat (buf, ",LOMF");
 1904         if (status & E1_FARLOF)  strcat (buf, ",FARLOF");
 1905         if (status & E1_AIS16)   strcat (buf, ",AIS16");
 1906         if (status & E1_FARLOMF) strcat (buf, ",FARLOMF");
 1907         if (status & E1_TSTREQ)  strcat (buf, ",TSTREQ");
 1908         if (status & E1_TSTERR)  strcat (buf, ",TSTERR");
 1909         if (buf[0] == ',')
 1910                 return buf+1;
 1911         return "Unknown";
 1912 }
 1913 
 1914 static int print_frac (char *s, int leftalign, u_long numerator, u_long divider)
 1915 {
 1916         int n, length = 0;
 1917 
 1918         if (numerator < 1 || divider < 1) {
 1919                 length += sprintf (s+length, leftalign ? "/-   " : "    -");
 1920                 return length;
 1921         }
 1922         n = (int) (0.5 + 1000.0 * numerator / divider);
 1923         if (n < 1000) {
 1924                 length += sprintf (s+length, leftalign ? "/.%-3d" : " .%03d", n);
 1925                 return length;
 1926         }
 1927         *(s + length) = leftalign ? '/' : ' ';
 1928         length ++;
 1929 
 1930         if      (n >= 1000000) n = (n+500) / 1000 * 1000;
 1931         else if (n >= 100000)  n = (n+50)  / 100 * 100;
 1932         else if (n >= 10000)   n = (n+5)   / 10 * 10;
 1933 
 1934         switch (n) {
 1935         case 1000:    length += printf (s+length, ".999"); return length;
 1936         case 10000:   n = 9990;   break;
 1937         case 100000:  n = 99900;  break;
 1938         case 1000000: n = 999000; break;
 1939         }
 1940         if (n < 10000)        length += sprintf (s+length, "%d.%d", n/1000, n/10%100);
 1941         else if (n < 100000)  length += sprintf (s+length, "%d.%d", n/1000, n/100%10);
 1942         else if (n < 1000000) length += sprintf (s+length, "%d.", n/1000);
 1943         else                  length += sprintf (s+length, "%d", n/1000);
 1944 
 1945         return length;
 1946 }
 1947 
 1948 static int print_e1_stats (char *s, cp_chan_t *c)
 1949 {
 1950         struct e1_counters total;
 1951         u_long totsec;
 1952         int length = 0;
 1953 
 1954         totsec          = c->totsec + c->cursec;
 1955         total.bpv       = c->total.bpv   + c->currnt.bpv;
 1956         total.fse       = c->total.fse   + c->currnt.fse;
 1957         total.crce      = c->total.crce  + c->currnt.crce;
 1958         total.rcrce     = c->total.rcrce + c->currnt.rcrce;
 1959         total.uas       = c->total.uas   + c->currnt.uas;
 1960         total.les       = c->total.les   + c->currnt.les;
 1961         total.es        = c->total.es    + c->currnt.es;
 1962         total.bes       = c->total.bes   + c->currnt.bes;
 1963         total.ses       = c->total.ses   + c->currnt.ses;
 1964         total.oofs      = c->total.oofs  + c->currnt.oofs;
 1965         total.css       = c->total.css   + c->currnt.css;
 1966         total.dm        = c->total.dm    + c->currnt.dm;
 1967 
 1968         length += sprintf (s + length, " Unav/Degr  Bpv/Fsyn  CRC/RCRC  Err/Lerr  Sev/Bur   Oof/Slp  Status\n");
 1969 
 1970         /* Unavailable seconds, degraded minutes */
 1971         length += print_frac (s + length, 0, c->currnt.uas, c->cursec);
 1972         length += print_frac (s + length, 1, 60 * c->currnt.dm, c->cursec);
 1973 
 1974         /* Bipolar violations, frame sync errors */
 1975         length += print_frac (s + length, 0, c->currnt.bpv, c->cursec);
 1976         length += print_frac (s + length, 1, c->currnt.fse, c->cursec);
 1977 
 1978         /* CRC errors, remote CRC errors (E-bit) */
 1979         length += print_frac (s + length, 0, c->currnt.crce, c->cursec);
 1980         length += print_frac (s + length, 1, c->currnt.rcrce, c->cursec);
 1981 
 1982         /* Errored seconds, line errored seconds */
 1983         length += print_frac (s + length, 0, c->currnt.es, c->cursec);
 1984         length += print_frac (s + length, 1, c->currnt.les, c->cursec);
 1985 
 1986         /* Severely errored seconds, burst errored seconds */
 1987         length += print_frac (s + length, 0, c->currnt.ses, c->cursec);
 1988         length += print_frac (s + length, 1, c->currnt.bes, c->cursec);
 1989 
 1990         /* Out of frame seconds, controlled slip seconds */
 1991         length += print_frac (s + length, 0, c->currnt.oofs, c->cursec);
 1992         length += print_frac (s + length, 1, c->currnt.css, c->cursec);
 1993 
 1994         length += sprintf (s + length, " %s\n", format_e1_status (c->status));
 1995 
 1996         /* Print total statistics. */
 1997         length += print_frac (s + length, 0, total.uas, totsec);
 1998         length += print_frac (s + length, 1, 60 * total.dm, totsec);
 1999 
 2000         length += print_frac (s + length, 0, total.bpv, totsec);
 2001         length += print_frac (s + length, 1, total.fse, totsec);
 2002 
 2003         length += print_frac (s + length, 0, total.crce, totsec);
 2004         length += print_frac (s + length, 1, total.rcrce, totsec);
 2005 
 2006         length += print_frac (s + length, 0, total.es, totsec);
 2007         length += print_frac (s + length, 1, total.les, totsec);
 2008 
 2009         length += print_frac (s + length, 0, total.ses, totsec);
 2010         length += print_frac (s + length, 1, total.bes, totsec);
 2011 
 2012         length += print_frac (s + length, 0, total.oofs, totsec);
 2013         length += print_frac (s + length, 1, total.css, totsec);
 2014 
 2015         length += sprintf (s + length, " -- Total\n");
 2016         return length;
 2017 }
 2018 
 2019 static int print_chan (char *s, cp_chan_t *c)
 2020 {
 2021         drv_t *d = c->sys;
 2022         bdrv_t *bd = d->board->sys;
 2023         int length = 0;
 2024 
 2025         length += sprintf (s + length, "cp%d", c->board->num * NCHAN + c->num);
 2026         if (d->chan->debug)
 2027                 length += sprintf (s + length, " debug=%d", d->chan->debug);
 2028 
 2029         if (c->board->mux) {
 2030                 length += sprintf (s + length, " cfg=C");
 2031         } else {
 2032                 length += sprintf (s + length, " cfg=A");
 2033         }
 2034 
 2035         if (c->baud)
 2036                 length += sprintf (s + length, " %ld", c->baud);
 2037         else
 2038                 length += sprintf (s + length, " extclock");
 2039 
 2040         if (c->type == T_E1 || c->type == T_G703)
 2041                 switch (c->gsyn) {
 2042                 case GSYN_INT   : length += sprintf (s + length, " syn=int");     break;
 2043                 case GSYN_RCV   : length += sprintf (s + length, " syn=rcv");     break;
 2044                 case GSYN_RCV0  : length += sprintf (s + length, " syn=rcv0");    break;
 2045                 case GSYN_RCV1  : length += sprintf (s + length, " syn=rcv1");    break;
 2046                 case GSYN_RCV2  : length += sprintf (s + length, " syn=rcv2");    break;
 2047                 case GSYN_RCV3  : length += sprintf (s + length, " syn=rcv3");    break;
 2048                 }
 2049         if (c->type == T_SERIAL) {
 2050                 length += sprintf (s + length, " dpll=%s",   c->dpll   ? "on" : "off");
 2051                 length += sprintf (s + length, " nrzi=%s",   c->nrzi   ? "on" : "off");
 2052                 length += sprintf (s + length, " invclk=%s", c->invtxc ? "on" : "off");
 2053         }
 2054         if (c->type == T_E1)
 2055                 length += sprintf (s + length, " higain=%s", c->higain ? "on" : "off");
 2056 
 2057         length += sprintf (s + length, " loop=%s", c->lloop ? "on" : "off");
 2058 
 2059         if (c->type == T_E1)
 2060                 length += sprintf (s + length, " ts=%s", format_timeslots (c->ts));
 2061         if (c->type == T_G703) {
 2062                 int lq, x;
 2063 
 2064                 x = splimp ();
 2065                 CP_LOCK (bd);
 2066                 lq = cp_get_lq (c);
 2067                 CP_UNLOCK (bd);
 2068                 splx (x);
 2069                 length += sprintf (s + length, " (level=-%.1fdB)", lq / 10.0);
 2070         }
 2071         length += sprintf (s + length, "\n");
 2072         return length;
 2073 }
 2074 
 2075 static int ng_cp_rcvmsg (node_p node, item_p item, hook_p lasthook)
 2076 {
 2077         drv_t *d = NG_NODE_PRIVATE (node);
 2078         struct ng_mesg *msg;
 2079         struct ng_mesg *resp = NULL;
 2080         int error = 0;
 2081 
 2082         CP_DEBUG (d, ("Rcvmsg\n"));
 2083         NGI_GET_MSG (item, msg);
 2084         switch (msg->header.typecookie) {
 2085         default:
 2086                 error = EINVAL;
 2087                 break;
 2088 
 2089         case NGM_CP_COOKIE:
 2090                 printf ("Not implemented yet\n");
 2091                 error = EINVAL;
 2092                 break;
 2093 
 2094         case NGM_GENERIC_COOKIE:
 2095                 switch (msg->header.cmd) {
 2096                 default:
 2097                         error = EINVAL;
 2098                         break;
 2099 
 2100                 case NGM_TEXT_STATUS: {
 2101                         char *s;
 2102                         int l = 0;
 2103                         int dl = sizeof (struct ng_mesg) + 730;
 2104 
 2105                         NG_MKRESPONSE (resp, msg, dl, M_NOWAIT);
 2106                         if (! resp) {
 2107                                 error = ENOMEM;
 2108                                 break;
 2109                         }
 2110                         s = (resp)->data;
 2111                         if (d) {
 2112                         l += print_chan (s + l, d->chan);
 2113                         l += print_stats (s + l, d->chan, 1);
 2114                         l += print_modems (s + l, d->chan, 1);
 2115                         l += print_e1_stats (s + l, d->chan);
 2116                         } else
 2117                                 l += sprintf (s + l, "Error: node not connect to channel");
 2118                         strncpy ((resp)->header.cmdstr, "status", NG_CMDSTRSIZ);
 2119                         }
 2120                         break;
 2121                 }
 2122                 break;
 2123         }
 2124         NG_RESPOND_MSG (error, node, item, resp);
 2125         NG_FREE_MSG (msg);
 2126         return error;
 2127 }
 2128 
 2129 static int ng_cp_rcvdata (hook_p hook, item_p item)
 2130 {
 2131         drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE(hook));
 2132         struct mbuf *m;
 2133         struct ng_tag_prio *ptag;
 2134         bdrv_t *bd = d->board->sys;
 2135         struct ifqueue *q;
 2136         int s;
 2137 
 2138         CP_DEBUG2 (d, ("Rcvdata\n"));
 2139         NGI_GET_M (item, m);
 2140         NG_FREE_ITEM (item);
 2141         if (! NG_HOOK_PRIVATE (hook) || ! d) {
 2142                 NG_FREE_M (m);
 2143                 return ENETDOWN;
 2144         }
 2145 
 2146         /* Check for high priority data */
 2147         if ((ptag = (struct ng_tag_prio *)m_tag_locate(m, NGM_GENERIC_COOKIE,
 2148             NG_TAG_PRIO, NULL)) != NULL && (ptag->priority > NG_PRIO_CUTOFF) )
 2149                 q = &d->hi_queue;
 2150         else
 2151                 q = &d->queue;
 2152 
 2153         s = splimp ();
 2154         CP_LOCK (bd);
 2155         IF_LOCK (q);
 2156         if (_IF_QFULL (q)) {
 2157                 _IF_DROP (q);
 2158                 IF_UNLOCK (q);
 2159                 CP_UNLOCK (bd);
 2160                 splx (s);
 2161                 NG_FREE_M (m);
 2162                 return ENOBUFS;
 2163         }
 2164         _IF_ENQUEUE (q, m);
 2165         IF_UNLOCK (q);
 2166         cp_start (d);
 2167         CP_UNLOCK (bd);
 2168         splx (s);
 2169         return 0;
 2170 }
 2171 
 2172 static int ng_cp_rmnode (node_p node)
 2173 {
 2174         drv_t *d = NG_NODE_PRIVATE (node);
 2175 
 2176         CP_DEBUG (d, ("Rmnode\n"));
 2177         if (d && d->running) {
 2178                 bdrv_t *bd = d->board->sys;
 2179                 int s = splimp ();
 2180                 CP_LOCK (bd);
 2181                 cp_down (d);
 2182                 CP_UNLOCK (bd);
 2183                 splx (s);
 2184         }
 2185 #ifdef  KLD_MODULE
 2186         if (node->nd_flags & NGF_REALLY_DIE) {
 2187                 NG_NODE_SET_PRIVATE (node, NULL);
 2188                 NG_NODE_UNREF (node);
 2189         }
 2190         NG_NODE_REVIVE(node);           /* Persistant node */
 2191 #endif
 2192         return 0;
 2193 }
 2194 
 2195 static int ng_cp_connect (hook_p hook)
 2196 {
 2197         drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
 2198 
 2199         if (d) {
 2200                 CP_DEBUG (d, ("Connect\n"));
 2201                 callout_reset (&d->timeout_handle, hz, cp_watchdog_timer, d);
 2202         }
 2203         
 2204         return 0;
 2205 }
 2206 
 2207 static int ng_cp_disconnect (hook_p hook)
 2208 {
 2209         drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
 2210 
 2211         if (d) {
 2212                 CP_DEBUG (d, ("Disconnect\n"));
 2213                 if (NG_HOOK_PRIVATE (hook))
 2214                 {
 2215                         bdrv_t *bd = d->board->sys;
 2216                         int s = splimp ();
 2217                         CP_LOCK (bd);
 2218                         cp_down (d);
 2219                         CP_UNLOCK (bd);
 2220                         splx (s);
 2221                 }
 2222                 /* If we were wait it than it reasserted now, just stop it. */
 2223                 if (!callout_drain (&d->timeout_handle))
 2224                         callout_stop (&d->timeout_handle);
 2225         }
 2226         return 0;
 2227 }
 2228 #endif
 2229 
 2230 static int cp_modevent (module_t mod, int type, void *unused)
 2231 {
 2232         static int load_count = 0;
 2233 
 2234         switch (type) {
 2235         case MOD_LOAD:
 2236 #ifdef NETGRAPH
 2237                 if (ng_newtype (&typestruct))
 2238                         printf ("Failed to register ng_cp\n");
 2239 #endif
 2240                 ++load_count;
 2241                 callout_init (&timeout_handle, CALLOUT_MPSAFE);
 2242                 callout_reset (&timeout_handle, hz*5, cp_timeout, 0);
 2243                 break;
 2244         case MOD_UNLOAD:
 2245                 if (load_count == 1) {
 2246                         printf ("Removing device entry for Tau-PCI\n");
 2247 #ifdef NETGRAPH
 2248                         ng_rmtype (&typestruct);
 2249 #endif                  
 2250                 }
 2251                 /* If we were wait it than it reasserted now, just stop it.
 2252                  * Actually we shouldn't get this condition. But code could be
 2253                  * changed in the future, so just be a litle paranoid.
 2254                  */
 2255                 if (!callout_drain (&timeout_handle))
 2256                         callout_stop (&timeout_handle);
 2257                 --load_count;
 2258                 break;
 2259         case MOD_SHUTDOWN:
 2260                 break;
 2261         }
 2262         return 0;
 2263 }
 2264 
 2265 #ifdef NETGRAPH
 2266 static struct ng_type typestruct = {
 2267         .version        = NG_ABI_VERSION,
 2268         .name           = NG_CP_NODE_TYPE,
 2269         .constructor    = ng_cp_constructor,
 2270         .rcvmsg         = ng_cp_rcvmsg,
 2271         .shutdown       = ng_cp_rmnode,
 2272         .newhook        = ng_cp_newhook,
 2273         .connect        = ng_cp_connect,
 2274         .rcvdata        = ng_cp_rcvdata,
 2275         .disconnect     = ng_cp_disconnect,
 2276 };
 2277 #endif /*NETGRAPH*/
 2278 
 2279 #ifdef NETGRAPH
 2280 MODULE_DEPEND (ng_cp, netgraph, NG_ABI_VERSION, NG_ABI_VERSION, NG_ABI_VERSION);
 2281 #else
 2282 MODULE_DEPEND (cp, sppp, 1, 1, 1);
 2283 #endif
 2284 DRIVER_MODULE (cp, pci, cp_driver, cp_devclass, cp_modevent, NULL);
 2285 MODULE_VERSION (cp, 1);

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