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 asynchronous 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 <net/if_var.h>
   46 #include <dev/pci/pcivar.h>
   47 #include <dev/pci/pcireg.h>
   48 #include <machine/bus.h>
   49 #include <sys/rman.h>
   50 #include "opt_ng_cronyx.h"
   51 #ifdef NETGRAPH_CRONYX
   52 #   include "opt_netgraph.h"
   53 #   ifndef NETGRAPH
   54 #       error #option   NETGRAPH missed from configuration
   55 #   endif
   56 #   include <netgraph/ng_message.h>
   57 #   include <netgraph/netgraph.h>
   58 #   include <dev/cp/ng_cp.h>
   59 #else
   60 #   include <net/if_sppp.h>
   61 #   include <net/if_types.h>
   62 #include <dev/pci/pcivar.h>
   63 #   define PP_CISCO IFF_LINK2
   64 #   include <net/bpf.h>
   65 #endif
   66 #include <dev/cx/machdep.h>
   67 #include <dev/cp/cpddk.h>
   68 #include <machine/cserial.h>
   69 #include <machine/resource.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         DEVMETHOD_END
   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  * Make an mbuf from data.
  185  */
  186 static struct mbuf *makembuf (void *buf, unsigned len)
  187 {
  188         struct mbuf *m;
  189 
  190         MGETHDR (m, M_NOWAIT, MT_DATA);
  191         if (! m)
  192                 return 0;
  193         if (!(MCLGET (m, M_NOWAIT))) {
  194                 m_freem (m);
  195                 return 0;
  196         }
  197         m->m_pkthdr.len = m->m_len = len;
  198         bcopy (buf, mtod (m, caddr_t), len);
  199         return m;
  200 }
  201 
  202 static int cp_probe (device_t dev)
  203 {
  204         if ((pci_get_vendor (dev) == cp_vendor_id) &&
  205             (pci_get_device (dev) == cp_device_id)) {
  206                 device_set_desc (dev, "Cronyx-Tau-PCI serial adapter");
  207                 return BUS_PROBE_DEFAULT;
  208         }
  209         return ENXIO;
  210 }
  211 
  212 static void cp_timeout (void *arg)
  213 {
  214         drv_t *d;
  215         int s, i, k;
  216 
  217         for (i = 0; i < NBRD; ++i) {
  218                 if (adapter[i] == NULL)
  219                         continue;
  220                 for (k = 0; k < NCHAN; ++k) {
  221                         s = splimp ();
  222                         if (cp_destroy) {
  223                                 splx (s);
  224                                 return;
  225                         }
  226                         d = channel[i * NCHAN + k];
  227                         if (!d) {
  228                                 splx (s);
  229                                 continue;
  230                         }
  231                         CP_LOCK ((bdrv_t *)d->board->sys);
  232                         switch (d->chan->type) {
  233                         case T_G703:
  234                                 cp_g703_timer (d->chan);
  235                                 break;
  236                         case T_E1:
  237                                 cp_e1_timer (d->chan);
  238                                 break;
  239                         case T_E3:
  240                         case T_T3:
  241                         case T_STS1:
  242                                 cp_e3_timer (d->chan);
  243                                 break;
  244                         default:
  245                                 break;
  246                         }
  247                         CP_UNLOCK ((bdrv_t *)d->board->sys);
  248                         splx (s);
  249                 }
  250         }
  251         s = splimp ();
  252         if (!cp_destroy)
  253                 callout_reset (&timeout_handle, hz, cp_timeout, 0);
  254         splx (s);
  255 }
  256 
  257 static void cp_led_off (void *arg)
  258 {
  259         cp_board_t *b = arg;
  260         bdrv_t *bd = (bdrv_t *) b->sys;
  261         int s;
  262         s = splimp ();
  263         if (cp_destroy) {
  264                 splx (s);
  265                 return;
  266         }
  267         CP_LOCK (bd);
  268         cp_led (b, 0);
  269         CP_UNLOCK (bd);
  270         splx (s);
  271 }
  272 
  273 static void cp_intr (void *arg)
  274 {
  275         bdrv_t *bd = arg;
  276         cp_board_t *b = bd->board;
  277 #ifndef NETGRAPH
  278         int i;
  279 #endif
  280         int s = splimp ();
  281         if (cp_destroy) {
  282                 splx (s);
  283                 return;
  284         }
  285         CP_LOCK (bd);
  286         /* Check if we are ready */
  287         if (b->sys == NULL) {
  288                 /* Not we are not, just cleanup. */
  289                 cp_interrupt_poll (b, 1);
  290                 CP_UNLOCK (bd);
  291                 return;
  292         }
  293         /* Turn LED on. */
  294         cp_led (b, 1);
  295 
  296         cp_interrupt (b);
  297 
  298         /* Turn LED off 50 msec later. */
  299         callout_reset (&led_timo[b->num], hz/20, cp_led_off, b);
  300         CP_UNLOCK (bd);
  301         splx (s);
  302 
  303 #ifndef NETGRAPH
  304         /* Pass packets in a lock-free state */
  305         for (i = 0; i < NCHAN && b->chan[i].type; i++) {
  306                 drv_t *d = b->chan[i].sys;
  307                 struct mbuf *m;
  308                 if (!d || !d->running)
  309                         continue;
  310                 while (_IF_QLEN(&d->queue)) {
  311                         IF_DEQUEUE (&d->queue,m);
  312                         if (!m)
  313                                 continue;
  314                         sppp_input (d->ifp, m); 
  315                 }
  316         }
  317 #endif
  318 }
  319 
  320 static void
  321 cp_bus_dmamap_addr (void *arg, bus_dma_segment_t *segs, int nseg, int error)
  322 {
  323         unsigned long *addr;
  324 
  325         if (error)
  326                 return;
  327 
  328         KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
  329         addr = arg;
  330         *addr = segs->ds_addr;
  331 }
  332 
  333 static int
  334 cp_bus_dma_mem_alloc (int bnum, int cnum, cp_dma_mem_t *dmem)
  335 {
  336         int error;
  337 
  338         error = bus_dma_tag_create (NULL, 16, 0, BUS_SPACE_MAXADDR_32BIT,
  339                 BUS_SPACE_MAXADDR, NULL, NULL, dmem->size, 1,
  340                 dmem->size, 0, NULL, NULL, &dmem->dmat);
  341         if (error) {
  342                 if (cnum >= 0)  printf ("cp%d-%d: ", bnum, cnum);
  343                 else            printf ("cp%d: ", bnum);
  344                 printf ("couldn't allocate tag for dma memory\n");
  345                 return 0;
  346         }
  347         error = bus_dmamem_alloc (dmem->dmat, (void **)&dmem->virt,
  348                 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &dmem->mapp);
  349         if (error) {
  350                 if (cnum >= 0)  printf ("cp%d-%d: ", bnum, cnum);
  351                 else            printf ("cp%d: ", bnum);
  352                 printf ("couldn't allocate mem for dma memory\n");
  353                 bus_dma_tag_destroy (dmem->dmat);
  354                 return 0;
  355         }
  356         error = bus_dmamap_load (dmem->dmat, dmem->mapp, dmem->virt,
  357                 dmem->size, cp_bus_dmamap_addr, &dmem->phys, 0);
  358         if (error) {
  359                 if (cnum >= 0)  printf ("cp%d-%d: ", bnum, cnum);
  360                 else            printf ("cp%d: ", bnum);
  361                 printf ("couldn't load mem map for dma memory\n");
  362                 bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp);
  363                 bus_dma_tag_destroy (dmem->dmat);
  364                 return 0;
  365         }
  366         return 1;
  367 }
  368 
  369 static void
  370 cp_bus_dma_mem_free (cp_dma_mem_t *dmem)
  371 {
  372         bus_dmamap_unload (dmem->dmat, dmem->mapp);
  373         bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp);
  374         bus_dma_tag_destroy (dmem->dmat);
  375 }
  376 
  377 /*
  378  * Called if the probe succeeded.
  379  */
  380 static int cp_attach (device_t dev)
  381 {
  382         bdrv_t *bd = device_get_softc (dev);
  383         int unit = device_get_unit (dev);
  384         char *cp_ln = CP_LOCK_NAME;
  385         unsigned short res;
  386         vm_offset_t vbase;
  387         int rid, error;
  388         cp_board_t *b;
  389         cp_chan_t *c;
  390         drv_t *d;
  391         int s = splimp ();
  392 
  393         b = malloc (sizeof(cp_board_t), M_DEVBUF, M_WAITOK);
  394         if (!b) {
  395                 printf ("cp%d: couldn't allocate memory\n", unit);              
  396                 splx (s);
  397                 return (ENXIO);
  398         }
  399         bzero (b, sizeof(cp_board_t));
  400 
  401         bd->board = b;
  402         rid = PCIR_BAR(0);
  403         bd->cp_res = bus_alloc_resource (dev, SYS_RES_MEMORY, &rid,
  404                         0, ~0, 1, RF_ACTIVE);
  405         if (! bd->cp_res) {
  406                 printf ("cp%d: cannot map memory\n", unit);
  407                 free (b, M_DEVBUF);
  408                 splx (s);
  409                 return (ENXIO);
  410         }
  411         vbase = (vm_offset_t) rman_get_virtual (bd->cp_res);
  412 
  413         cp_ln[2] = '' + unit;
  414         mtx_init (&bd->cp_mtx, cp_ln, MTX_NETWORK_LOCK, MTX_DEF|MTX_RECURSE);
  415         res = cp_init (b, unit, (u_char*) vbase);
  416         if (res) {
  417                 printf ("cp%d: can't init, error code:%x\n", unit, res);
  418                 bus_release_resource (dev, SYS_RES_MEMORY, PCIR_BAR(0), bd->cp_res);
  419                 free (b, M_DEVBUF);
  420                 splx (s);
  421                 return (ENXIO);
  422         }
  423 
  424         bd->dmamem.size = sizeof(cp_qbuf_t);
  425         if (! cp_bus_dma_mem_alloc (unit, -1, &bd->dmamem)) {
  426                 free (b, M_DEVBUF);
  427                 splx (s);
  428                 return (ENXIO);
  429         }
  430         CP_LOCK (bd);
  431         cp_reset (b, bd->dmamem.virt, bd->dmamem.phys);
  432         CP_UNLOCK (bd);
  433 
  434         rid = 0;
  435         bd->cp_irq = bus_alloc_resource (dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
  436                         RF_SHAREABLE | RF_ACTIVE);
  437         if (! bd->cp_irq) {
  438                 cp_destroy = 1;
  439                 printf ("cp%d: cannot map interrupt\n", unit);  
  440                 bus_release_resource (dev, SYS_RES_MEMORY,
  441                                 PCIR_BAR(0), bd->cp_res);
  442                 mtx_destroy (&bd->cp_mtx);
  443                 free (b, M_DEVBUF);
  444                 splx (s);
  445                 return (ENXIO);
  446         }
  447         callout_init (&led_timo[unit], 1);
  448         error  = bus_setup_intr (dev, bd->cp_irq,
  449                                 INTR_TYPE_NET|INTR_MPSAFE,
  450                                 NULL, cp_intr, bd, &bd->cp_intrhand);
  451         if (error) {
  452                 cp_destroy = 1;
  453                 printf ("cp%d: cannot set up irq\n", unit);
  454                 bus_release_resource (dev, SYS_RES_IRQ, 0, bd->cp_irq);
  455                 bus_release_resource (dev, SYS_RES_MEMORY,
  456                                 PCIR_BAR(0), bd->cp_res);
  457                 mtx_destroy (&bd->cp_mtx);
  458                 free (b, M_DEVBUF);
  459                 splx (s);
  460                 return (ENXIO);
  461         }
  462         printf ("cp%d: %s, clock %ld MHz\n", unit, b->name, b->osc / 1000000);
  463 
  464         for (c = b->chan; c < b->chan + NCHAN; ++c) {
  465                 if (! c->type)
  466                         continue;
  467                 d = &bd->channel[c->num];
  468                 d->dmamem.size = sizeof(cp_buf_t);
  469                 if (! cp_bus_dma_mem_alloc (unit, c->num, &d->dmamem))
  470                         continue;
  471                 channel [b->num*NCHAN + c->num] = d;
  472                 sprintf (d->name, "cp%d.%d", b->num, c->num);
  473                 d->board = b;
  474                 d->chan = c;
  475                 c->sys = d;
  476                 callout_init (&d->timeout_handle, 1);
  477 #ifdef NETGRAPH
  478                 if (ng_make_node_common (&typestruct, &d->node) != 0) {
  479                         printf ("%s: cannot make common node\n", d->name);
  480                         d->node = NULL;
  481                         continue;
  482                 }
  483                 NG_NODE_SET_PRIVATE (d->node, d);
  484                 sprintf (d->nodename, "%s%d", NG_CP_NODE_TYPE,
  485                          c->board->num*NCHAN + c->num);
  486                 if (ng_name_node (d->node, d->nodename)) {
  487                         printf ("%s: cannot name node\n", d->nodename);
  488                         NG_NODE_UNREF (d->node);
  489                         continue;
  490                 }
  491                 d->queue.ifq_maxlen = ifqmaxlen;
  492                 d->hi_queue.ifq_maxlen = ifqmaxlen;
  493                 mtx_init (&d->queue.ifq_mtx, "cp_queue", NULL, MTX_DEF);
  494                 mtx_init (&d->hi_queue.ifq_mtx, "cp_queue_hi", NULL, MTX_DEF);
  495 #else /*NETGRAPH*/
  496                 d->ifp = if_alloc(IFT_PPP);
  497                 if (d->ifp == NULL) {
  498                         printf ("%s: cannot if_alloc() interface\n", d->name);
  499                         continue;
  500                 }
  501                 d->ifp->if_softc        = d;
  502                 if_initname (d->ifp, "cp", b->num * NCHAN + c->num);
  503                 d->ifp->if_mtu          = PP_MTU;
  504                 d->ifp->if_flags        = IFF_POINTOPOINT | IFF_MULTICAST;
  505                 d->ifp->if_ioctl        = cp_sioctl;
  506                 d->ifp->if_start        = cp_ifstart;
  507                 d->ifp->if_init         = cp_initialize;
  508                 d->queue.ifq_maxlen     = NRBUF;
  509                 mtx_init (&d->queue.ifq_mtx, "cp_queue", NULL, MTX_DEF);
  510                 sppp_attach (d->ifp);
  511                 if_attach (d->ifp);
  512                 IFP2SP(d->ifp)->pp_tlf  = cp_tlf;
  513                 IFP2SP(d->ifp)->pp_tls  = cp_tls;
  514                 /* If BPF is in the kernel, call the attach for it.
  515                  * The header size of PPP or Cisco/HDLC is 4 bytes. */
  516                 bpfattach (d->ifp, DLT_PPP, 4);
  517 #endif /*NETGRAPH*/
  518                 cp_start_e1 (c);
  519                 cp_start_chan (c, 1, 1, d->dmamem.virt, d->dmamem.phys);
  520 
  521                 /* Register callback functions. */
  522                 cp_register_transmit (c, &cp_transmit);
  523                 cp_register_receive (c, &cp_receive);
  524                 cp_register_error (c, &cp_error);
  525                 d->devt = make_dev (&cp_cdevsw, b->num*NCHAN+c->num, UID_ROOT,
  526                                 GID_WHEEL, 0600, "cp%d", b->num*NCHAN+c->num);
  527         }
  528         CP_LOCK (bd);
  529         b->sys = bd;
  530         adapter[unit] = b;
  531         CP_UNLOCK (bd);
  532         splx (s);
  533         gone_in_dev(dev, 14, "sync serial (T1/E1) drivers");
  534         return 0;
  535 }
  536 
  537 static int cp_detach (device_t dev)
  538 {
  539         bdrv_t *bd = device_get_softc (dev);
  540         cp_board_t *b = bd->board;
  541         cp_chan_t *c;
  542         int s;
  543 
  544         KASSERT (mtx_initialized (&bd->cp_mtx), ("cp mutex not initialized"));
  545         s = splimp ();
  546         CP_LOCK (bd);
  547         /* Check if the device is busy (open). */
  548         for (c = b->chan; c < b->chan + NCHAN; ++c) {
  549                 drv_t *d = (drv_t*) c->sys;
  550 
  551                 if (! d || ! d->chan->type)
  552                         continue;
  553                 if (d->running) {
  554                         CP_UNLOCK (bd);
  555                         splx (s);
  556                         return EBUSY;
  557                 }
  558         }
  559 
  560         /* Ok, we can unload driver */
  561         /* At first we should stop all channels */
  562         for (c = b->chan; c < b->chan + NCHAN; ++c) {
  563                 drv_t *d = (drv_t*) c->sys;
  564 
  565                 if (! d || ! d->chan->type)
  566                         continue;
  567 
  568                 cp_stop_chan (c);
  569                 cp_stop_e1 (c);
  570                 cp_set_dtr (d->chan, 0);
  571                 cp_set_rts (d->chan, 0);
  572         }
  573 
  574         /* Reset the adapter. */
  575         cp_destroy = 1;
  576         cp_interrupt_poll (b, 1);
  577         cp_led_off (b);
  578         cp_reset (b, 0 ,0);
  579         callout_stop (&led_timo[b->num]);
  580 
  581         /* Disable the interrupt request. */
  582         bus_teardown_intr (dev, bd->cp_irq, bd->cp_intrhand);
  583 
  584         for (c=b->chan; c<b->chan+NCHAN; ++c) {
  585                 drv_t *d = (drv_t*) c->sys;
  586 
  587                 if (! d || ! d->chan->type)
  588                         continue;
  589                 callout_stop (&d->timeout_handle);
  590 #ifndef NETGRAPH
  591                 /* Detach from the packet filter list of interfaces. */
  592                 bpfdetach (d->ifp);
  593 
  594                 /* Detach from the sync PPP list. */
  595                 sppp_detach (d->ifp);
  596 
  597                 /* Detach from the system list of interfaces. */
  598                 if_detach (d->ifp);
  599                 if_free (d->ifp);
  600                 IF_DRAIN (&d->queue);
  601                 mtx_destroy (&d->queue.ifq_mtx);
  602 #else
  603                 if (d->node) {
  604                         ng_rmnode_self (d->node);
  605                         NG_NODE_UNREF (d->node);
  606                         d->node = NULL;
  607                 }
  608                 mtx_destroy (&d->queue.ifq_mtx);
  609                 mtx_destroy (&d->hi_queue.ifq_mtx);
  610 #endif
  611                 destroy_dev (d->devt);
  612         }
  613 
  614         b->sys = NULL;
  615         CP_UNLOCK (bd);
  616 
  617         bus_release_resource (dev, SYS_RES_IRQ, 0, bd->cp_irq);
  618         bus_release_resource (dev, SYS_RES_MEMORY, PCIR_BAR(0), bd->cp_res);
  619 
  620         CP_LOCK (bd);
  621         cp_led_off (b);
  622         CP_UNLOCK (bd);
  623         callout_drain (&led_timo[b->num]);
  624         splx (s);
  625 
  626         for (c = b->chan; c < b->chan + NCHAN; ++c) {
  627                 drv_t *d = (drv_t*) c->sys;
  628 
  629                 if (! d || ! d->chan->type)
  630                         continue;
  631                 callout_drain (&d->timeout_handle);
  632                 channel [b->num*NCHAN + c->num] = NULL;
  633                 /* Deallocate buffers. */
  634                 cp_bus_dma_mem_free (&d->dmamem);
  635         }
  636         adapter [b->num] = NULL;
  637         cp_bus_dma_mem_free (&bd->dmamem);
  638         free (b, M_DEVBUF);
  639         mtx_destroy (&bd->cp_mtx);
  640         return 0;
  641 }
  642 
  643 #ifndef NETGRAPH
  644 static void cp_ifstart (struct ifnet *ifp)
  645 {
  646         drv_t *d = ifp->if_softc;
  647         bdrv_t *bd = d->board->sys;
  648 
  649         CP_LOCK (bd);
  650         cp_start (d);
  651         CP_UNLOCK (bd);
  652 }
  653 
  654 static void cp_tlf (struct sppp *sp)
  655 {
  656         drv_t *d = SP2IFP(sp)->if_softc;
  657 
  658         CP_DEBUG2 (d, ("cp_tlf\n"));
  659         /* XXXRIK: Don't forget to protect them by LOCK, or kill them. */
  660 /*      cp_set_dtr (d->chan, 0);*/
  661 /*      cp_set_rts (d->chan, 0);*/
  662         if (!(sp->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO))
  663                 sp->pp_down (sp);
  664 }
  665 
  666 static void cp_tls (struct sppp *sp)
  667 {
  668         drv_t *d = SP2IFP(sp)->if_softc;
  669 
  670         CP_DEBUG2 (d, ("cp_tls\n"));
  671         if (!(sp->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO))
  672                 sp->pp_up (sp);
  673 }
  674 
  675 /*
  676  * Process an ioctl request.
  677  */
  678 static int cp_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data)
  679 {
  680         drv_t *d = ifp->if_softc;
  681         bdrv_t *bd = d->board->sys;
  682         int error, s, was_up, should_be_up;
  683 
  684         was_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
  685         error = sppp_ioctl (ifp, cmd, data);
  686 
  687         if (error)
  688                 return error;
  689 
  690         if (! (ifp->if_flags & IFF_DEBUG))
  691                 d->chan->debug = 0;
  692         else
  693                 d->chan->debug = d->chan->debug_shadow;
  694 
  695         switch (cmd) {
  696         default:           CP_DEBUG2 (d, ("ioctl 0x%lx\n", cmd));   return 0;
  697         case SIOCADDMULTI: CP_DEBUG2 (d, ("ioctl SIOCADDMULTI\n")); return 0;
  698         case SIOCDELMULTI: CP_DEBUG2 (d, ("ioctl SIOCDELMULTI\n")); return 0;
  699         case SIOCSIFFLAGS: CP_DEBUG2 (d, ("ioctl SIOCSIFFLAGS\n")); break;
  700         case SIOCSIFADDR:  CP_DEBUG2 (d, ("ioctl SIOCSIFADDR\n"));  break;
  701         }
  702 
  703         /* We get here only in case of SIFFLAGS or SIFADDR. */
  704         s = splimp ();
  705         CP_LOCK (bd);
  706         should_be_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
  707         if (! was_up && should_be_up) {
  708                 /* Interface goes up -- start it. */
  709                 cp_up (d);
  710                 cp_start (d);
  711         } else if (was_up && ! should_be_up) {
  712                 /* Interface is going down -- stop it. */
  713 /*              if ((IFP2SP(ifp)->pp_flags & PP_FR) || (ifp->if_flags & PP_CISCO))*/
  714                 cp_down (d);
  715         }
  716         CP_DEBUG (d, ("ioctl 0x%lx p4\n", cmd));
  717         CP_UNLOCK (bd);
  718         splx (s);
  719         return 0;
  720 }
  721 
  722 /*
  723  * Initialization of interface.
  724  * It seems to be never called by upper level?
  725  */
  726 static void cp_initialize (void *softc)
  727 {
  728         drv_t *d = softc;
  729 
  730         CP_DEBUG (d, ("cp_initialize\n"));
  731 }
  732 #endif /*NETGRAPH*/
  733 
  734 /*
  735  * Stop the interface.  Called on splimp().
  736  */
  737 static void cp_down (drv_t *d)
  738 {
  739         CP_DEBUG (d, ("cp_down\n"));
  740         /* Interface is going down -- stop it. */
  741         cp_set_dtr (d->chan, 0);
  742         cp_set_rts (d->chan, 0);
  743 
  744         d->running = 0;
  745         callout_stop (&d->timeout_handle);
  746 }
  747 
  748 /*
  749  * Start the interface.  Called on splimp().
  750  */
  751 static void cp_up (drv_t *d)
  752 {
  753         CP_DEBUG (d, ("cp_up\n"));
  754         cp_set_dtr (d->chan, 1);
  755         cp_set_rts (d->chan, 1);
  756         d->running = 1;
  757 }
  758 
  759 /*
  760  * Start output on the interface.  Get another datagram to send
  761  * off of the interface queue, and copy it to the interface
  762  * before starting the output.
  763  */
  764 static void cp_send (drv_t *d)
  765 {
  766         struct mbuf *m;
  767         u_short len;
  768 
  769         CP_DEBUG2 (d, ("cp_send, tn=%d te=%d\n", d->chan->tn, d->chan->te));
  770 
  771         /* No output if the interface is down. */
  772         if (! d->running)
  773                 return;
  774 
  775         /* No output if the modem is off. */
  776         if (! (d->chan->lloop || d->chan->type != T_SERIAL ||
  777                 cp_get_dsr (d->chan)))
  778                 return;
  779 
  780         while (cp_transmit_space (d->chan)) {
  781                 /* Get the packet to send. */
  782 #ifdef NETGRAPH
  783                 IF_DEQUEUE (&d->hi_queue, m);
  784                 if (! m)
  785                         IF_DEQUEUE (&d->queue, m);
  786 #else
  787                 m = sppp_dequeue (d->ifp);
  788 #endif
  789                 if (! m)
  790                         return;
  791 #ifndef NETGRAPH
  792                 BPF_MTAP (d->ifp, m);
  793 #endif
  794                 len = m_length (m, NULL);
  795                 if (len >= BUFSZ)
  796                         printf ("%s: too long packet: %d bytes: ",
  797                                 d->name, len);
  798                 else if (! m->m_next)
  799                         cp_send_packet (d->chan, (u_char*) mtod (m, caddr_t), len, 0);
  800                 else {
  801                         u_char *buf = d->chan->tbuf[d->chan->te];
  802                         m_copydata (m, 0, len, buf);
  803                         cp_send_packet (d->chan, buf, len, 0);
  804                 }
  805                 m_freem (m);
  806                 /* Set up transmit timeout, if the transmit ring is not empty.*/
  807                 d->timeout = 10;
  808         }
  809 #ifndef NETGRAPH
  810         d->ifp->if_drv_flags |= IFF_DRV_OACTIVE;
  811 #endif
  812 }
  813 
  814 /*
  815  * Start output on the interface.
  816  * Always called on splimp().
  817  */
  818 static void cp_start (drv_t *d)
  819 {
  820         if (d->running) {
  821                 if (! d->chan->dtr)
  822                         cp_set_dtr (d->chan, 1);
  823                 if (! d->chan->rts)
  824                         cp_set_rts (d->chan, 1);
  825                 cp_send (d);
  826                 callout_reset (&d->timeout_handle, hz, cp_watchdog_timer, d);
  827         }
  828 }
  829 
  830 /*
  831  * Handle transmit timeouts.
  832  * Recover after lost transmit interrupts.
  833  * Always called on splimp().
  834  */
  835 static void cp_watchdog (drv_t *d)
  836 {
  837         CP_DEBUG (d, ("device timeout\n"));
  838         if (d->running) {
  839                 cp_stop_chan (d->chan);
  840                 cp_stop_e1 (d->chan);
  841                 cp_start_e1 (d->chan);
  842                 cp_start_chan (d->chan, 1, 1, 0, 0);
  843                 cp_set_dtr (d->chan, 1);
  844                 cp_set_rts (d->chan, 1);
  845                 cp_start (d);
  846         }
  847 }
  848 
  849 static void cp_watchdog_timer (void *arg)
  850 {
  851         drv_t *d = arg;
  852         bdrv_t *bd = d->board->sys;
  853 
  854         CP_LOCK (bd);
  855         if (d->timeout == 1)
  856                 cp_watchdog (d);
  857         if (d->timeout)
  858                 d->timeout--;
  859         callout_reset (&d->timeout_handle, hz, cp_watchdog_timer, d);
  860         CP_UNLOCK (bd);
  861 }
  862 
  863 static void cp_transmit (cp_chan_t *c, void *attachment, int len)
  864 {
  865         drv_t *d = c->sys;
  866 
  867         d->timeout = 0;
  868 #ifndef NETGRAPH
  869         if_inc_counter(d->ifp, IFCOUNTER_OPACKETS, 1);
  870         d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
  871 #endif
  872         cp_start (d);
  873 }
  874 
  875 static void cp_receive (cp_chan_t *c, unsigned char *data, int len)
  876 {
  877         drv_t *d = c->sys;
  878         struct mbuf *m;
  879 #ifdef NETGRAPH
  880         int error;
  881 #endif
  882 
  883         if (! d->running)
  884                 return;
  885 
  886         m = makembuf (data, len);
  887         if (! m) {
  888                 CP_DEBUG (d, ("no memory for packet\n"));
  889 #ifndef NETGRAPH
  890                 if_inc_counter(d->ifp, IFCOUNTER_IQDROPS, 1);
  891 #endif
  892                 return;
  893         }
  894         if (c->debug > 1)
  895                 m_print (m, 0);
  896 #ifdef NETGRAPH
  897         m->m_pkthdr.rcvif = 0;
  898         NG_SEND_DATA_ONLY (error, d->hook, m);
  899 #else
  900         if_inc_counter(d->ifp, IFCOUNTER_IPACKETS, 1);
  901         m->m_pkthdr.rcvif = d->ifp;
  902         /* Check if there's a BPF listener on this interface.
  903          * If so, hand off the raw packet to bpf. */
  904         BPF_MTAP(d->ifp, m);
  905         IF_ENQUEUE (&d->queue, m);
  906 #endif
  907 }
  908 
  909 static void cp_error (cp_chan_t *c, int data)
  910 {
  911         drv_t *d = c->sys;
  912 
  913         switch (data) {
  914         case CP_FRAME:
  915                 CP_DEBUG (d, ("frame error\n"));
  916 #ifndef NETGRAPH
  917                 if_inc_counter(d->ifp, IFCOUNTER_IERRORS, 1);
  918 #endif
  919                 break;
  920         case CP_CRC:
  921                 CP_DEBUG (d, ("crc error\n"));
  922 #ifndef NETGRAPH
  923                 if_inc_counter(d->ifp, IFCOUNTER_IERRORS, 1);
  924 #endif
  925                 break;
  926         case CP_OVERRUN:
  927                 CP_DEBUG (d, ("overrun error\n"));
  928 #ifndef NETGRAPH
  929                 if_inc_counter(d->ifp, IFCOUNTER_COLLISIONS, 1);
  930                 if_inc_counter(d->ifp, IFCOUNTER_IERRORS, 1);
  931 #endif
  932                 break;
  933         case CP_OVERFLOW:
  934                 CP_DEBUG (d, ("overflow error\n"));
  935 #ifndef NETGRAPH
  936                 if_inc_counter(d->ifp, IFCOUNTER_IERRORS, 1);
  937 #endif
  938                 break;
  939         case CP_UNDERRUN:
  940                 CP_DEBUG (d, ("underrun error\n"));
  941                 d->timeout = 0;
  942 #ifndef NETGRAPH
  943                 if_inc_counter(d->ifp, IFCOUNTER_OERRORS, 1);
  944                 d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
  945 #endif
  946                 cp_start (d);
  947                 break;
  948         default:
  949                 CP_DEBUG (d, ("error #%d\n", data));
  950                 break;
  951         }
  952 }
  953 
  954 /*
  955  * You also need read, write, open, close routines.
  956  * This should get you started
  957  */
  958 static int cp_open (struct cdev *dev, int oflags, int devtype, struct thread *td)
  959 {
  960         int unit = dev2unit (dev);
  961         drv_t *d;
  962 
  963         if (unit >= NBRD*NCHAN || ! (d = channel[unit]))
  964                 return ENXIO;
  965         CP_DEBUG2 (d, ("cp_open\n"));
  966         return 0;
  967 }
  968 
  969 /*
  970  * Only called on the LAST close.
  971  */
  972 static int cp_close (struct cdev *dev, int fflag, int devtype, struct thread *td)
  973 {
  974         drv_t *d = channel [dev2unit (dev)];
  975 
  976         CP_DEBUG2 (d, ("cp_close\n"));
  977         return 0;
  978 }
  979 
  980 static int cp_modem_status (cp_chan_t *c)
  981 {
  982         drv_t *d = c->sys;
  983         bdrv_t *bd = d->board->sys;
  984         int status, s;
  985 
  986         status = d->running ? TIOCM_LE : 0;
  987         s = splimp ();
  988         CP_LOCK (bd);
  989         if (cp_get_cd  (c)) status |= TIOCM_CD;
  990         if (cp_get_cts (c)) status |= TIOCM_CTS;
  991         if (cp_get_dsr (c)) status |= TIOCM_DSR;
  992         if (c->dtr)         status |= TIOCM_DTR;
  993         if (c->rts)         status |= TIOCM_RTS;
  994         CP_UNLOCK (bd);
  995         splx (s);
  996         return status;
  997 }
  998 
  999 static int cp_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
 1000 {
 1001         drv_t *d = channel [dev2unit (dev)];
 1002         bdrv_t *bd = d->board->sys;
 1003         cp_chan_t *c = d->chan;
 1004         struct serial_statistics *st;
 1005         struct e1_statistics *opte1;
 1006         struct e3_statistics *opte3;
 1007         int error, s;
 1008         char mask[16];
 1009 
 1010         switch (cmd) {
 1011         case SERIAL_GETREGISTERED:
 1012                 CP_DEBUG2 (d, ("ioctl: getregistered\n"));
 1013                 bzero (mask, sizeof(mask));
 1014                 for (s=0; s<NBRD*NCHAN; ++s)
 1015                         if (channel [s])
 1016                                 mask [s/8] |= 1 << (s & 7);
 1017                 bcopy (mask, data, sizeof (mask));
 1018                 return 0;
 1019 
 1020 #ifndef NETGRAPH
 1021         case SERIAL_GETPROTO:
 1022                 CP_DEBUG2 (d, ("ioctl: getproto\n"));
 1023                 strcpy ((char*)data, (IFP2SP(d->ifp)->pp_flags & PP_FR) ? "fr" :
 1024                         (d->ifp->if_flags & PP_CISCO) ? "cisco" : "ppp");
 1025                 return 0;
 1026 
 1027         case SERIAL_SETPROTO:
 1028                 CP_DEBUG2 (d, ("ioctl: setproto\n"));
 1029                 /* Only for superuser! */
 1030                 error = priv_check (td, PRIV_DRIVER);
 1031                 if (error)
 1032                         return error;
 1033                 if (d->ifp->if_drv_flags & IFF_DRV_RUNNING)
 1034                         return EBUSY;
 1035                 if (! strcmp ("cisco", (char*)data)) {
 1036                         IFP2SP(d->ifp)->pp_flags &= ~(PP_FR);
 1037                         IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
 1038                         d->ifp->if_flags |= PP_CISCO;
 1039 #if PP_FR != 0
 1040                 } else if (! strcmp ("fr", (char*)data)) {
 1041                         d->ifp->if_flags &= ~(PP_CISCO);
 1042                         IFP2SP(d->ifp)->pp_flags |= PP_FR | PP_KEEPALIVE;
 1043 #endif
 1044                 } else if (! strcmp ("ppp", (char*)data)) {
 1045                         IFP2SP(d->ifp)->pp_flags &= ~PP_FR;
 1046                         IFP2SP(d->ifp)->pp_flags &= ~PP_KEEPALIVE;
 1047                         d->ifp->if_flags &= ~(PP_CISCO);
 1048                 } else
 1049                         return EINVAL;
 1050                 return 0;
 1051 
 1052         case SERIAL_GETKEEPALIVE:
 1053                 CP_DEBUG2 (d, ("ioctl: getkeepalive\n"));
 1054                 if ((IFP2SP(d->ifp)->pp_flags & PP_FR) ||
 1055                         (d->ifp->if_flags & PP_CISCO))
 1056                         return EINVAL;
 1057                 *(int*)data = (IFP2SP(d->ifp)->pp_flags & PP_KEEPALIVE) ? 1 : 0;
 1058                 return 0;
 1059 
 1060         case SERIAL_SETKEEPALIVE:
 1061                 CP_DEBUG2 (d, ("ioctl: setkeepalive\n"));
 1062                 /* Only for superuser! */
 1063                 error = priv_check (td, PRIV_DRIVER);
 1064                 if (error)
 1065                         return error;
 1066                 if ((IFP2SP(d->ifp)->pp_flags & PP_FR) ||
 1067                         (d->ifp->if_flags & PP_CISCO))
 1068                         return EINVAL;
 1069                 s = splimp ();
 1070                 CP_LOCK (bd);
 1071                 if (*(int*)data)
 1072                         IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
 1073                 else
 1074                         IFP2SP(d->ifp)->pp_flags &= ~PP_KEEPALIVE;
 1075                 CP_UNLOCK (bd);
 1076                 splx (s);
 1077                 return 0;
 1078 #endif /*NETGRAPH*/
 1079 
 1080         case SERIAL_GETMODE:
 1081                 CP_DEBUG2 (d, ("ioctl: getmode\n"));
 1082                 *(int*)data = SERIAL_HDLC;
 1083                 return 0;
 1084 
 1085         case SERIAL_SETMODE:
 1086                 /* Only for superuser! */
 1087                 error = priv_check (td, PRIV_DRIVER);
 1088                 if (error)
 1089                         return error;
 1090                 if (*(int*)data != SERIAL_HDLC)
 1091                         return EINVAL;
 1092                 return 0;
 1093 
 1094         case SERIAL_GETCFG:
 1095                 CP_DEBUG2 (d, ("ioctl: getcfg\n"));
 1096                 if (c->type != T_E1 || c->unfram)
 1097                         return EINVAL;
 1098                 *(char*)data = c->board->mux ? 'c' : 'a';
 1099                 return 0;
 1100 
 1101         case SERIAL_SETCFG:
 1102                 CP_DEBUG2 (d, ("ioctl: setcfg\n"));
 1103                 error = priv_check (td, PRIV_DRIVER);
 1104                 if (error)
 1105                         return error;
 1106                 if (c->type != T_E1)
 1107                         return EINVAL;
 1108                 s = splimp ();
 1109                 CP_LOCK (bd);
 1110                 cp_set_mux (c->board, *((char*)data) == 'c');
 1111                 CP_UNLOCK (bd);
 1112                 splx (s);
 1113                 return 0;
 1114 
 1115         case SERIAL_GETSTAT:
 1116                 CP_DEBUG2 (d, ("ioctl: getstat\n"));
 1117                 st = (struct serial_statistics*) data;
 1118                 st->rintr  = c->rintr;
 1119                 st->tintr  = c->tintr;
 1120                 st->mintr  = 0;
 1121                 st->ibytes = c->ibytes;
 1122                 st->ipkts  = c->ipkts;
 1123                 st->obytes = c->obytes;
 1124                 st->opkts  = c->opkts;
 1125                 st->ierrs  = c->overrun + c->frame + c->crc;
 1126                 st->oerrs  = c->underrun;
 1127                 return 0;
 1128 
 1129         case SERIAL_GETESTAT:
 1130                 CP_DEBUG2 (d, ("ioctl: getestat\n"));
 1131                 if (c->type != T_E1 && c->type != T_G703)
 1132                         return EINVAL;
 1133                 opte1 = (struct e1_statistics*) data;
 1134                 opte1->status       = c->status;
 1135                 opte1->cursec       = c->cursec;
 1136                 opte1->totsec       = c->totsec + c->cursec;
 1137 
 1138                 opte1->currnt.bpv   = c->currnt.bpv;
 1139                 opte1->currnt.fse   = c->currnt.fse;
 1140                 opte1->currnt.crce  = c->currnt.crce;
 1141                 opte1->currnt.rcrce = c->currnt.rcrce;
 1142                 opte1->currnt.uas   = c->currnt.uas;
 1143                 opte1->currnt.les   = c->currnt.les;
 1144                 opte1->currnt.es    = c->currnt.es;
 1145                 opte1->currnt.bes   = c->currnt.bes;
 1146                 opte1->currnt.ses   = c->currnt.ses;
 1147                 opte1->currnt.oofs  = c->currnt.oofs;
 1148                 opte1->currnt.css   = c->currnt.css;
 1149                 opte1->currnt.dm    = c->currnt.dm;
 1150 
 1151                 opte1->total.bpv    = c->total.bpv   + c->currnt.bpv;
 1152                 opte1->total.fse    = c->total.fse   + c->currnt.fse;
 1153                 opte1->total.crce   = c->total.crce  + c->currnt.crce;
 1154                 opte1->total.rcrce  = c->total.rcrce + c->currnt.rcrce;
 1155                 opte1->total.uas    = c->total.uas   + c->currnt.uas;
 1156                 opte1->total.les    = c->total.les   + c->currnt.les;
 1157                 opte1->total.es     = c->total.es    + c->currnt.es;
 1158                 opte1->total.bes    = c->total.bes   + c->currnt.bes;
 1159                 opte1->total.ses    = c->total.ses   + c->currnt.ses;
 1160                 opte1->total.oofs   = c->total.oofs  + c->currnt.oofs;
 1161                 opte1->total.css    = c->total.css   + c->currnt.css;
 1162                 opte1->total.dm     = c->total.dm    + c->currnt.dm;
 1163                 for (s=0; s<48; ++s) {
 1164                         opte1->interval[s].bpv   = c->interval[s].bpv;
 1165                         opte1->interval[s].fse   = c->interval[s].fse;
 1166                         opte1->interval[s].crce  = c->interval[s].crce;
 1167                         opte1->interval[s].rcrce = c->interval[s].rcrce;
 1168                         opte1->interval[s].uas   = c->interval[s].uas;
 1169                         opte1->interval[s].les   = c->interval[s].les;
 1170                         opte1->interval[s].es    = c->interval[s].es;
 1171                         opte1->interval[s].bes   = c->interval[s].bes;
 1172                         opte1->interval[s].ses   = c->interval[s].ses;
 1173                         opte1->interval[s].oofs  = c->interval[s].oofs;
 1174                         opte1->interval[s].css   = c->interval[s].css;
 1175                         opte1->interval[s].dm    = c->interval[s].dm;
 1176                 }
 1177                 return 0;
 1178 
 1179         case SERIAL_GETE3STAT:
 1180                 CP_DEBUG2 (d, ("ioctl: gete3stat\n"));
 1181                 if (c->type != T_E3 && c->type != T_T3 && c->type != T_STS1)
 1182                         return EINVAL;
 1183                 opte3 = (struct e3_statistics*) data;
 1184 
 1185                 opte3->status = c->e3status;
 1186                 opte3->cursec = (c->e3csec_5 * 2 + 1) / 10;
 1187                 opte3->totsec = c->e3tsec + opte3->cursec;
 1188 
 1189                 opte3->ccv = c->e3ccv;
 1190                 opte3->tcv = c->e3tcv + opte3->ccv;
 1191 
 1192                 for (s = 0; s < 48; ++s) {
 1193                         opte3->icv[s] = c->e3icv[s];
 1194                 }
 1195                 return 0;
 1196                 
 1197         case SERIAL_CLRSTAT:
 1198                 CP_DEBUG2 (d, ("ioctl: clrstat\n"));
 1199                 /* Only for superuser! */
 1200                 error = priv_check (td, PRIV_DRIVER);
 1201                 if (error)
 1202                         return error;
 1203                 c->rintr    = 0;
 1204                 c->tintr    = 0;
 1205                 c->ibytes   = 0;
 1206                 c->obytes   = 0;
 1207                 c->ipkts    = 0;
 1208                 c->opkts    = 0;
 1209                 c->overrun  = 0;
 1210                 c->frame    = 0;
 1211                 c->crc      = 0;
 1212                 c->underrun = 0;
 1213                 bzero (&c->currnt, sizeof (c->currnt));
 1214                 bzero (&c->total, sizeof (c->total));
 1215                 bzero (c->interval, sizeof (c->interval));
 1216                 c->e3ccv    = 0;
 1217                 c->e3tcv    = 0;
 1218                 bzero (c->e3icv, sizeof (c->e3icv));
 1219                 return 0;
 1220 
 1221         case SERIAL_GETBAUD:
 1222                 CP_DEBUG2 (d, ("ioctl: getbaud\n"));
 1223                 *(long*)data = c->baud;
 1224                 return 0;
 1225 
 1226         case SERIAL_SETBAUD:
 1227                 CP_DEBUG2 (d, ("ioctl: setbaud\n"));
 1228                 /* Only for superuser! */
 1229                 error = priv_check (td, PRIV_DRIVER);
 1230                 if (error)
 1231                         return error;
 1232                 s = splimp ();
 1233                 CP_LOCK (bd);
 1234                 cp_set_baud (c, *(long*)data);
 1235                 CP_UNLOCK (bd);
 1236                 splx (s);
 1237                 return 0;
 1238 
 1239         case SERIAL_GETLOOP:
 1240                 CP_DEBUG2 (d, ("ioctl: getloop\n"));
 1241                 *(int*)data = c->lloop;
 1242                 return 0;
 1243 
 1244         case SERIAL_SETLOOP:
 1245                 CP_DEBUG2 (d, ("ioctl: setloop\n"));
 1246                 /* Only for superuser! */
 1247                 error = priv_check (td, PRIV_DRIVER);
 1248                 if (error)
 1249                         return error;
 1250                 s = splimp ();
 1251                 CP_LOCK (bd);
 1252                 cp_set_lloop (c, *(int*)data);
 1253                 CP_UNLOCK (bd);
 1254                 splx (s);
 1255                 return 0;
 1256 
 1257         case SERIAL_GETDPLL:
 1258                 CP_DEBUG2 (d, ("ioctl: getdpll\n"));
 1259                 if (c->type != T_SERIAL)
 1260                         return EINVAL;
 1261                 *(int*)data = c->dpll;
 1262                 return 0;
 1263 
 1264         case SERIAL_SETDPLL:
 1265                 CP_DEBUG2 (d, ("ioctl: setdpll\n"));
 1266                 /* Only for superuser! */
 1267                 error = priv_check (td, PRIV_DRIVER);
 1268                 if (error)
 1269                         return error;
 1270                 if (c->type != T_SERIAL)
 1271                         return EINVAL;
 1272                 s = splimp ();
 1273                 CP_LOCK (bd);
 1274                 cp_set_dpll (c, *(int*)data);
 1275                 CP_UNLOCK (bd);
 1276                 splx (s);
 1277                 return 0;
 1278 
 1279         case SERIAL_GETNRZI:
 1280                 CP_DEBUG2 (d, ("ioctl: getnrzi\n"));
 1281                 if (c->type != T_SERIAL)
 1282                         return EINVAL;
 1283                 *(int*)data = c->nrzi;
 1284                 return 0;
 1285 
 1286         case SERIAL_SETNRZI:
 1287                 CP_DEBUG2 (d, ("ioctl: setnrzi\n"));
 1288                 /* Only for superuser! */
 1289                 error = priv_check (td, PRIV_DRIVER);
 1290                 if (error)
 1291                         return error;
 1292                 if (c->type != T_SERIAL)
 1293                         return EINVAL;
 1294                 s = splimp ();
 1295                 CP_LOCK (bd);
 1296                 cp_set_nrzi (c, *(int*)data);
 1297                 CP_UNLOCK (bd);
 1298                 splx (s);
 1299                 return 0;
 1300 
 1301         case SERIAL_GETDEBUG:
 1302                 CP_DEBUG2 (d, ("ioctl: getdebug\n"));
 1303                 *(int*)data = d->chan->debug;
 1304                 return 0;
 1305 
 1306         case SERIAL_SETDEBUG:
 1307                 CP_DEBUG2 (d, ("ioctl: setdebug\n"));
 1308                 /* Only for superuser! */
 1309                 error = priv_check (td, PRIV_DRIVER);
 1310                 if (error)
 1311                         return error;
 1312 #ifndef NETGRAPH
 1313                 /*
 1314                  * The debug_shadow is always greater than zero for logic 
 1315                  * simplicity.  For switching debug off the IFF_DEBUG is
 1316                  * responsible.
 1317                  */
 1318                 d->chan->debug_shadow = (*(int*)data) ? (*(int*)data) : 1;
 1319                 if (d->ifp->if_flags & IFF_DEBUG)
 1320                         d->chan->debug = d->chan->debug_shadow;
 1321 #else
 1322                 d->chan->debug = *(int*)data;
 1323 #endif
 1324                 return 0;
 1325 
 1326         case SERIAL_GETHIGAIN:
 1327                 CP_DEBUG2 (d, ("ioctl: gethigain\n"));
 1328                 if (c->type != T_E1)
 1329                         return EINVAL;
 1330                 *(int*)data = c->higain;
 1331                 return 0;
 1332 
 1333         case SERIAL_SETHIGAIN:
 1334                 CP_DEBUG2 (d, ("ioctl: sethigain\n"));
 1335                 /* Only for superuser! */
 1336                 error = priv_check (td, PRIV_DRIVER);
 1337                 if (error)
 1338                         return error;
 1339                 if (c->type != T_E1)
 1340                         return EINVAL;
 1341                 s = splimp ();
 1342                 CP_LOCK (bd);
 1343                 cp_set_higain (c, *(int*)data);
 1344                 CP_UNLOCK (bd);
 1345                 splx (s);
 1346                 return 0;
 1347 
 1348         case SERIAL_GETPHONY:
 1349                 CP_DEBUG2 (d, ("ioctl: getphony\n"));
 1350                 if (c->type != T_E1)
 1351                         return EINVAL;
 1352                 *(int*)data = c->phony;
 1353                 return 0;
 1354 
 1355         case SERIAL_SETPHONY:
 1356                 CP_DEBUG2 (d, ("ioctl: setphony\n"));
 1357                 /* Only for superuser! */
 1358                 error = priv_check (td, PRIV_DRIVER);
 1359                 if (error)
 1360                         return error;
 1361                 if (c->type != T_E1)
 1362                         return EINVAL;
 1363                 s = splimp ();
 1364                 CP_LOCK (bd);
 1365                 cp_set_phony (c, *(int*)data);
 1366                 CP_UNLOCK (bd);
 1367                 splx (s);
 1368                 return 0;
 1369 
 1370         case SERIAL_GETUNFRAM:
 1371                 CP_DEBUG2 (d, ("ioctl: getunfram\n"));
 1372                 if (c->type != T_E1)
 1373                         return EINVAL;
 1374                 *(int*)data = c->unfram;
 1375                 return 0;
 1376 
 1377         case SERIAL_SETUNFRAM:
 1378                 CP_DEBUG2 (d, ("ioctl: setunfram\n"));
 1379                 /* Only for superuser! */
 1380                 error = priv_check (td, PRIV_DRIVER);
 1381                 if (error)
 1382                         return error;
 1383                 if (c->type != T_E1)
 1384                         return EINVAL;
 1385                 s = splimp ();
 1386                 CP_LOCK (bd);
 1387                 cp_set_unfram (c, *(int*)data);
 1388                 CP_UNLOCK (bd);
 1389                 splx (s);
 1390                 return 0;
 1391 
 1392         case SERIAL_GETSCRAMBLER:
 1393                 CP_DEBUG2 (d, ("ioctl: getscrambler\n"));
 1394                 if (c->type != T_G703 && !c->unfram)
 1395                         return EINVAL;
 1396                 *(int*)data = c->scrambler;
 1397                 return 0;
 1398 
 1399         case SERIAL_SETSCRAMBLER:
 1400                 CP_DEBUG2 (d, ("ioctl: setscrambler\n"));
 1401                 /* Only for superuser! */
 1402                 error = priv_check (td, PRIV_DRIVER);
 1403                 if (error)
 1404                         return error;
 1405                 if (c->type != T_G703 && !c->unfram)
 1406                         return EINVAL;
 1407                 s = splimp ();
 1408                 CP_LOCK (bd);
 1409                 cp_set_scrambler (c, *(int*)data);
 1410                 CP_UNLOCK (bd);
 1411                 splx (s);
 1412                 return 0;
 1413 
 1414         case SERIAL_GETMONITOR:
 1415                 CP_DEBUG2 (d, ("ioctl: getmonitor\n"));
 1416                 if (c->type != T_E1 &&
 1417                     c->type != T_E3 &&
 1418                     c->type != T_T3 &&
 1419                     c->type != T_STS1)
 1420                         return EINVAL;
 1421                 *(int*)data = c->monitor;
 1422                 return 0;
 1423 
 1424         case SERIAL_SETMONITOR:
 1425                 CP_DEBUG2 (d, ("ioctl: setmonitor\n"));
 1426                 /* Only for superuser! */
 1427                 error = priv_check (td, PRIV_DRIVER);
 1428                 if (error)
 1429                         return error;
 1430                 if (c->type != T_E1)
 1431                         return EINVAL;
 1432                 s = splimp ();
 1433                 CP_LOCK (bd);
 1434                 cp_set_monitor (c, *(int*)data);
 1435                 CP_UNLOCK (bd);
 1436                 splx (s);
 1437                 return 0;
 1438 
 1439         case SERIAL_GETUSE16:
 1440                 CP_DEBUG2 (d, ("ioctl: getuse16\n"));
 1441                 if (c->type != T_E1 || c->unfram)
 1442                         return EINVAL;
 1443                 *(int*)data = c->use16;
 1444                 return 0;
 1445 
 1446         case SERIAL_SETUSE16:
 1447                 CP_DEBUG2 (d, ("ioctl: setuse16\n"));
 1448                 /* Only for superuser! */
 1449                 error = priv_check (td, PRIV_DRIVER);
 1450                 if (error)
 1451                         return error;
 1452                 if (c->type != T_E1)
 1453                         return EINVAL;
 1454                 s = splimp ();
 1455                 CP_LOCK (bd);
 1456                 cp_set_use16 (c, *(int*)data);
 1457                 CP_UNLOCK (bd);
 1458                 splx (s);
 1459                 return 0;
 1460 
 1461         case SERIAL_GETCRC4:
 1462                 CP_DEBUG2 (d, ("ioctl: getcrc4\n"));
 1463                 if (c->type != T_E1 || c->unfram)
 1464                         return EINVAL;
 1465                 *(int*)data = c->crc4;
 1466                 return 0;
 1467 
 1468         case SERIAL_SETCRC4:
 1469                 CP_DEBUG2 (d, ("ioctl: setcrc4\n"));
 1470                 /* Only for superuser! */
 1471                 error = priv_check (td, PRIV_DRIVER);
 1472                 if (error)
 1473                         return error;
 1474                 if (c->type != T_E1)
 1475                         return EINVAL;
 1476                 s = splimp ();
 1477                 CP_LOCK (bd);
 1478                 cp_set_crc4 (c, *(int*)data);
 1479                 CP_UNLOCK (bd);
 1480                 splx (s);
 1481                 return 0;
 1482 
 1483         case SERIAL_GETCLK:
 1484                 CP_DEBUG2 (d, ("ioctl: getclk\n"));
 1485                 if (c->type != T_E1 &&
 1486                     c->type != T_G703 &&
 1487                     c->type != T_E3 &&
 1488                     c->type != T_T3 &&
 1489                     c->type != T_STS1)
 1490                         return EINVAL;
 1491                 switch (c->gsyn) {
 1492                 default:        *(int*)data = E1CLK_INTERNAL;           break;
 1493                 case GSYN_RCV:  *(int*)data = E1CLK_RECEIVE;            break;
 1494                 case GSYN_RCV0: *(int*)data = E1CLK_RECEIVE_CHAN0;      break;
 1495                 case GSYN_RCV1: *(int*)data = E1CLK_RECEIVE_CHAN1;      break;
 1496                 case GSYN_RCV2: *(int*)data = E1CLK_RECEIVE_CHAN2;      break;
 1497                 case GSYN_RCV3: *(int*)data = E1CLK_RECEIVE_CHAN3;      break;
 1498                 }
 1499                 return 0;
 1500 
 1501         case SERIAL_SETCLK:
 1502                 CP_DEBUG2 (d, ("ioctl: setclk\n"));
 1503                 /* Only for superuser! */
 1504                 error = priv_check (td, PRIV_DRIVER);
 1505                 if (error)
 1506                         return error;
 1507                 if (c->type != T_E1 &&
 1508                     c->type != T_G703 &&
 1509                     c->type != T_E3 &&
 1510                     c->type != T_T3 &&
 1511                     c->type != T_STS1)
 1512                         return EINVAL;
 1513                 s = splimp ();
 1514                 CP_LOCK (bd);
 1515                 switch (*(int*)data) {
 1516                 default:                  cp_set_gsyn (c, GSYN_INT);  break;
 1517                 case E1CLK_RECEIVE:       cp_set_gsyn (c, GSYN_RCV);  break;
 1518                 case E1CLK_RECEIVE_CHAN0: cp_set_gsyn (c, GSYN_RCV0); break;
 1519                 case E1CLK_RECEIVE_CHAN1: cp_set_gsyn (c, GSYN_RCV1); break;
 1520                 case E1CLK_RECEIVE_CHAN2: cp_set_gsyn (c, GSYN_RCV2); break;
 1521                 case E1CLK_RECEIVE_CHAN3: cp_set_gsyn (c, GSYN_RCV3); break;
 1522                 }
 1523                 CP_UNLOCK (bd);
 1524                 splx (s);
 1525                 return 0;
 1526 
 1527         case SERIAL_GETTIMESLOTS:
 1528                 CP_DEBUG2 (d, ("ioctl: gettimeslots\n"));
 1529                 if ((c->type != T_E1 || c->unfram) && c->type != T_DATA)
 1530                         return EINVAL;
 1531                 *(u_long*)data = c->ts;
 1532                 return 0;
 1533 
 1534         case SERIAL_SETTIMESLOTS:
 1535                 CP_DEBUG2 (d, ("ioctl: settimeslots\n"));
 1536                 /* Only for superuser! */
 1537                 error = priv_check (td, PRIV_DRIVER);
 1538                 if (error)
 1539                         return error;
 1540                 if ((c->type != T_E1 || c->unfram) && c->type != T_DATA)
 1541                         return EINVAL;
 1542                 s = splimp ();
 1543                 CP_LOCK (bd);
 1544                 cp_set_ts (c, *(u_long*)data);
 1545                 CP_UNLOCK (bd);
 1546                 splx (s);
 1547                 return 0;
 1548 
 1549         case SERIAL_GETINVCLK:
 1550                 CP_DEBUG2 (d, ("ioctl: getinvclk\n"));
 1551 #if 1
 1552                 return EINVAL;
 1553 #else
 1554                 if (c->type != T_SERIAL)
 1555                         return EINVAL;
 1556                 *(int*)data = c->invtxc;
 1557                 return 0;
 1558 #endif
 1559 
 1560         case SERIAL_SETINVCLK:
 1561                 CP_DEBUG2 (d, ("ioctl: setinvclk\n"));
 1562                 /* Only for superuser! */
 1563                 error = priv_check (td, PRIV_DRIVER);
 1564                 if (error)
 1565                         return error;
 1566                 if (c->type != T_SERIAL)
 1567                         return EINVAL;
 1568                 s = splimp ();
 1569                 CP_LOCK (bd);
 1570                 cp_set_invtxc (c, *(int*)data);
 1571                 cp_set_invrxc (c, *(int*)data);
 1572                 CP_UNLOCK (bd);
 1573                 splx (s);
 1574                 return 0;
 1575 
 1576         case SERIAL_GETINVTCLK:
 1577                 CP_DEBUG2 (d, ("ioctl: getinvtclk\n"));
 1578                 if (c->type != T_SERIAL)
 1579                         return EINVAL;
 1580                 *(int*)data = c->invtxc;
 1581                 return 0;
 1582 
 1583         case SERIAL_SETINVTCLK:
 1584                 CP_DEBUG2 (d, ("ioctl: setinvtclk\n"));
 1585                 /* Only for superuser! */
 1586                 error = priv_check (td, PRIV_DRIVER);
 1587                 if (error)
 1588                         return error;
 1589                 if (c->type != T_SERIAL)
 1590                         return EINVAL;
 1591                 s = splimp ();
 1592                 CP_LOCK (bd);
 1593                 cp_set_invtxc (c, *(int*)data);
 1594                 CP_UNLOCK (bd);
 1595                 splx (s);
 1596                 return 0;
 1597 
 1598         case SERIAL_GETINVRCLK:
 1599                 CP_DEBUG2 (d, ("ioctl: getinvrclk\n"));
 1600                 if (c->type != T_SERIAL)
 1601                         return EINVAL;
 1602                 *(int*)data = c->invrxc;
 1603                 return 0;
 1604 
 1605         case SERIAL_SETINVRCLK:
 1606                 CP_DEBUG2 (d, ("ioctl: setinvrclk\n"));
 1607                 /* Only for superuser! */
 1608                 error = priv_check (td, PRIV_DRIVER);
 1609                 if (error)
 1610                         return error;
 1611                 if (c->type != T_SERIAL)
 1612                         return EINVAL;
 1613                 s = splimp ();
 1614                 CP_LOCK (bd);
 1615                 cp_set_invrxc (c, *(int*)data);
 1616                 CP_UNLOCK (bd);
 1617                 splx (s);
 1618                 return 0;
 1619 
 1620         case SERIAL_GETLEVEL:
 1621                 CP_DEBUG2 (d, ("ioctl: getlevel\n"));
 1622                 if (c->type != T_G703)
 1623                         return EINVAL;
 1624                 s = splimp ();
 1625                 CP_LOCK (bd);
 1626                 *(int*)data = cp_get_lq (c);
 1627                 CP_UNLOCK (bd);
 1628                 splx (s);
 1629                 return 0;
 1630 
 1631 #if 0
 1632         case SERIAL_RESET:
 1633                 CP_DEBUG2 (d, ("ioctl: reset\n"));
 1634                 /* Only for superuser! */
 1635                 error = priv_check (td, PRIV_DRIVER);
 1636                 if (error)
 1637                         return error;
 1638                 s = splimp ();
 1639                 CP_LOCK (bd);
 1640                 cp_reset (c->board, 0, 0);
 1641                 CP_UNLOCK (bd);
 1642                 splx (s);
 1643                 return 0;
 1644 
 1645         case SERIAL_HARDRESET:
 1646                 CP_DEBUG2 (d, ("ioctl: hardreset\n"));
 1647                 /* Only for superuser! */
 1648                 error = priv_check (td, PRIV_DRIVER);
 1649                 if (error)
 1650                         return error;
 1651                 s = splimp ();
 1652                 CP_LOCK (bd);
 1653                 /* hard_reset (c->board); */
 1654                 CP_UNLOCK (bd);
 1655                 splx (s);
 1656                 return 0;
 1657 #endif
 1658 
 1659         case SERIAL_GETCABLE:
 1660                 CP_DEBUG2 (d, ("ioctl: getcable\n"));
 1661                 if (c->type != T_SERIAL)
 1662                         return EINVAL;
 1663                 s = splimp ();
 1664                 CP_LOCK (bd);
 1665                 *(int*)data = cp_get_cable (c);
 1666                 CP_UNLOCK (bd);
 1667                 splx (s);
 1668                 return 0;
 1669 
 1670         case SERIAL_GETDIR:
 1671                 CP_DEBUG2 (d, ("ioctl: getdir\n"));
 1672                 if (c->type != T_E1 && c->type != T_DATA)
 1673                         return EINVAL;
 1674                 *(int*)data = c->dir;
 1675                 return 0;
 1676 
 1677         case SERIAL_SETDIR:
 1678                 CP_DEBUG2 (d, ("ioctl: setdir\n"));
 1679                 /* Only for superuser! */
 1680                 error = priv_check (td, PRIV_DRIVER);
 1681                 if (error)
 1682                         return error;
 1683                 s = splimp ();
 1684                 CP_LOCK (bd);
 1685                 cp_set_dir (c, *(int*)data);
 1686                 CP_UNLOCK (bd);
 1687                 splx (s);
 1688                 return 0;
 1689 
 1690         case SERIAL_GETRLOOP:
 1691                 CP_DEBUG2 (d, ("ioctl: getrloop\n"));
 1692                 if (c->type != T_G703 &&
 1693                     c->type != T_E3 &&
 1694                     c->type != T_T3 &&
 1695                     c->type != T_STS1)
 1696                         return EINVAL;
 1697                 *(int*)data = cp_get_rloop (c);
 1698                 return 0;
 1699 
 1700         case SERIAL_SETRLOOP:
 1701                 CP_DEBUG2 (d, ("ioctl: setloop\n"));
 1702                 if (c->type != T_E3 && c->type != T_T3 && c->type != T_STS1)
 1703                         return EINVAL;
 1704                 /* Only for superuser! */
 1705                 error = priv_check (td, PRIV_DRIVER);
 1706                 if (error)
 1707                         return error;
 1708                 s = splimp ();
 1709                 CP_LOCK (bd);
 1710                 cp_set_rloop (c, *(int*)data);
 1711                 CP_UNLOCK (bd);
 1712                 splx (s);
 1713                 return 0;
 1714 
 1715         case SERIAL_GETCABLEN:
 1716                 CP_DEBUG2 (d, ("ioctl: getcablen\n"));
 1717                 if (c->type != T_T3 && c->type != T_STS1)
 1718                         return EINVAL;
 1719                 *(int*)data = c->cablen;
 1720                 return 0;
 1721 
 1722         case SERIAL_SETCABLEN:
 1723                 CP_DEBUG2 (d, ("ioctl: setloop\n"));
 1724                 if (c->type != T_T3 && c->type != T_STS1)
 1725                         return EINVAL;
 1726                 /* Only for superuser! */
 1727                 error = priv_check (td, PRIV_DRIVER);
 1728                 if (error)
 1729                         return error;
 1730                 s = splimp ();
 1731                 CP_LOCK (bd);
 1732                 cp_set_cablen (c, *(int*)data);
 1733                 CP_UNLOCK (bd);
 1734                 splx (s);
 1735                 return 0;
 1736 
 1737         case TIOCSDTR:  /* Set DTR */
 1738                 s = splimp ();
 1739                 CP_LOCK (bd);
 1740                 cp_set_dtr (c, 1);
 1741                 CP_UNLOCK (bd);
 1742                 splx (s);
 1743                 return 0;
 1744 
 1745         case TIOCCDTR:  /* Clear DTR */
 1746                 s = splimp ();
 1747                 CP_LOCK (bd);
 1748                 cp_set_dtr (c, 0);
 1749                 CP_UNLOCK (bd);
 1750                 splx (s);
 1751                 return 0;
 1752 
 1753         case TIOCMSET:  /* Set DTR/RTS */
 1754                 s = splimp ();
 1755                 CP_LOCK (bd);
 1756                 cp_set_dtr (c, (*(int*)data & TIOCM_DTR) ? 1 : 0);
 1757                 cp_set_rts (c, (*(int*)data & TIOCM_RTS) ? 1 : 0);
 1758                 CP_UNLOCK (bd);
 1759                 splx (s);
 1760                 return 0;
 1761 
 1762         case TIOCMBIS:  /* Add DTR/RTS */
 1763                 s = splimp ();
 1764                 CP_LOCK (bd);
 1765                 if (*(int*)data & TIOCM_DTR) cp_set_dtr (c, 1);
 1766                 if (*(int*)data & TIOCM_RTS) cp_set_rts (c, 1);
 1767                 CP_UNLOCK (bd);
 1768                 splx (s);
 1769                 return 0;
 1770 
 1771         case TIOCMBIC:  /* Clear DTR/RTS */
 1772                 s = splimp ();
 1773                 CP_LOCK (bd);
 1774                 if (*(int*)data & TIOCM_DTR) cp_set_dtr (c, 0);
 1775                 if (*(int*)data & TIOCM_RTS) cp_set_rts (c, 0);
 1776                 CP_UNLOCK (bd);
 1777                 splx (s);
 1778                 return 0;
 1779 
 1780         case TIOCMGET:  /* Get modem status */
 1781                 *(int*)data = cp_modem_status (c);
 1782                 return 0;
 1783         }
 1784         return ENOTTY;
 1785 }
 1786 
 1787 #ifdef NETGRAPH
 1788 static int ng_cp_constructor (node_p node)
 1789 {
 1790         drv_t *d = NG_NODE_PRIVATE (node);
 1791         CP_DEBUG (d, ("Constructor\n"));
 1792         return EINVAL;
 1793 }
 1794 
 1795 static int ng_cp_newhook (node_p node, hook_p hook, const char *name)
 1796 {
 1797         int s;
 1798         drv_t *d = NG_NODE_PRIVATE (node);
 1799         bdrv_t *bd = d->board->sys;
 1800 
 1801         CP_DEBUG (d, ("Newhook\n"));
 1802         /* Attach debug hook */
 1803         if (strcmp (name, NG_CP_HOOK_DEBUG) == 0) {
 1804                 NG_HOOK_SET_PRIVATE (hook, NULL);
 1805                 d->debug_hook = hook;
 1806                 return 0;
 1807         }
 1808 
 1809         /* Check for raw hook */
 1810         if (strcmp (name, NG_CP_HOOK_RAW) != 0)
 1811                 return EINVAL;
 1812 
 1813         NG_HOOK_SET_PRIVATE (hook, d);
 1814         d->hook = hook;
 1815         s = splimp ();
 1816         CP_LOCK (bd);
 1817         cp_up (d);
 1818         CP_UNLOCK (bd);
 1819         splx (s);
 1820         return 0;
 1821 }
 1822 
 1823 static char *format_timeslots (u_long s)
 1824 {
 1825         static char buf [100];
 1826         char *p = buf;
 1827         int i;
 1828 
 1829         for (i=1; i<32; ++i)
 1830                 if ((s >> i) & 1) {
 1831                         int prev = (i > 1)  & (s >> (i-1));
 1832                         int next = (i < 31) & (s >> (i+1));
 1833 
 1834                         if (prev) {
 1835                                 if (next)
 1836                                         continue;
 1837                                 *p++ = '-';
 1838                         } else if (p > buf)
 1839                                 *p++ = ',';
 1840 
 1841                         if (i >= 10)
 1842                                 *p++ = '' + i / 10;
 1843                         *p++ = '' + i % 10;
 1844                 }
 1845         *p = 0;
 1846         return buf;
 1847 }
 1848 
 1849 static int print_modems (char *s, cp_chan_t *c, int need_header)
 1850 {
 1851         int status = cp_modem_status (c);
 1852         int length = 0;
 1853 
 1854         if (need_header)
 1855                 length += sprintf (s + length, "  LE   DTR  DSR  RTS  CTS  CD\n");
 1856         length += sprintf (s + length, "%4s %4s %4s %4s %4s %4s\n",
 1857                 status & TIOCM_LE  ? "On" : "-",
 1858                 status & TIOCM_DTR ? "On" : "-",
 1859                 status & TIOCM_DSR ? "On" : "-",
 1860                 status & TIOCM_RTS ? "On" : "-",
 1861                 status & TIOCM_CTS ? "On" : "-",
 1862                 status & TIOCM_CD  ? "On" : "-");
 1863         return length;
 1864 }
 1865 
 1866 static int print_stats (char *s, cp_chan_t *c, int need_header)
 1867 {
 1868         int length = 0;
 1869 
 1870         if (need_header)
 1871                 length += sprintf (s + length, "  Rintr   Tintr   Mintr   Ibytes   Ipkts   Ierrs   Obytes   Opkts   Oerrs\n");
 1872         length += sprintf (s + length, "%7ld %7ld %7ld %8lu %7ld %7ld %8lu %7ld %7ld\n",
 1873                 c->rintr, c->tintr, 0l, (unsigned long) c->ibytes,
 1874                 c->ipkts, c->overrun + c->frame + c->crc,
 1875                 (unsigned long) c->obytes, c->opkts, c->underrun);
 1876         return length;
 1877 }
 1878 
 1879 static char *format_e1_status (u_char status)
 1880 {
 1881         static char buf [80];
 1882 
 1883         if (status & E1_NOALARM)
 1884                 return "Ok";
 1885         buf[0] = 0;
 1886         if (status & E1_LOS)     strcat (buf, ",LOS");
 1887         if (status & E1_AIS)     strcat (buf, ",AIS");
 1888         if (status & E1_LOF)     strcat (buf, ",LOF");
 1889         if (status & E1_LOMF)    strcat (buf, ",LOMF");
 1890         if (status & E1_FARLOF)  strcat (buf, ",FARLOF");
 1891         if (status & E1_AIS16)   strcat (buf, ",AIS16");
 1892         if (status & E1_FARLOMF) strcat (buf, ",FARLOMF");
 1893         if (status & E1_TSTREQ)  strcat (buf, ",TSTREQ");
 1894         if (status & E1_TSTERR)  strcat (buf, ",TSTERR");
 1895         if (buf[0] == ',')
 1896                 return buf+1;
 1897         return "Unknown";
 1898 }
 1899 
 1900 static int print_frac (char *s, int leftalign, u_long numerator, u_long divider)
 1901 {
 1902         int n, length = 0;
 1903 
 1904         if (numerator < 1 || divider < 1) {
 1905                 length += sprintf (s+length, leftalign ? "/-   " : "    -");
 1906                 return length;
 1907         }
 1908         n = (int) (0.5 + 1000.0 * numerator / divider);
 1909         if (n < 1000) {
 1910                 length += sprintf (s+length, leftalign ? "/.%-3d" : " .%03d", n);
 1911                 return length;
 1912         }
 1913         *(s + length) = leftalign ? '/' : ' ';
 1914         length ++;
 1915 
 1916         if      (n >= 1000000) n = (n+500) / 1000 * 1000;
 1917         else if (n >= 100000)  n = (n+50)  / 100 * 100;
 1918         else if (n >= 10000)   n = (n+5)   / 10 * 10;
 1919 
 1920         switch (n) {
 1921         case 1000:    length += printf (s+length, ".999"); return length;
 1922         case 10000:   n = 9990;   break;
 1923         case 100000:  n = 99900;  break;
 1924         case 1000000: n = 999000; break;
 1925         }
 1926         if (n < 10000)        length += sprintf (s+length, "%d.%d", n/1000, n/10%100);
 1927         else if (n < 100000)  length += sprintf (s+length, "%d.%d", n/1000, n/100%10);
 1928         else if (n < 1000000) length += sprintf (s+length, "%d.", n/1000);
 1929         else                  length += sprintf (s+length, "%d", n/1000);
 1930 
 1931         return length;
 1932 }
 1933 
 1934 static int print_e1_stats (char *s, cp_chan_t *c)
 1935 {
 1936         struct e1_counters total;
 1937         u_long totsec;
 1938         int length = 0;
 1939 
 1940         totsec          = c->totsec + c->cursec;
 1941         total.bpv       = c->total.bpv   + c->currnt.bpv;
 1942         total.fse       = c->total.fse   + c->currnt.fse;
 1943         total.crce      = c->total.crce  + c->currnt.crce;
 1944         total.rcrce     = c->total.rcrce + c->currnt.rcrce;
 1945         total.uas       = c->total.uas   + c->currnt.uas;
 1946         total.les       = c->total.les   + c->currnt.les;
 1947         total.es        = c->total.es    + c->currnt.es;
 1948         total.bes       = c->total.bes   + c->currnt.bes;
 1949         total.ses       = c->total.ses   + c->currnt.ses;
 1950         total.oofs      = c->total.oofs  + c->currnt.oofs;
 1951         total.css       = c->total.css   + c->currnt.css;
 1952         total.dm        = c->total.dm    + c->currnt.dm;
 1953 
 1954         length += sprintf (s + length, " Unav/Degr  Bpv/Fsyn  CRC/RCRC  Err/Lerr  Sev/Bur   Oof/Slp  Status\n");
 1955 
 1956         /* Unavailable seconds, degraded minutes */
 1957         length += print_frac (s + length, 0, c->currnt.uas, c->cursec);
 1958         length += print_frac (s + length, 1, 60 * c->currnt.dm, c->cursec);
 1959 
 1960         /* Bipolar violations, frame sync errors */
 1961         length += print_frac (s + length, 0, c->currnt.bpv, c->cursec);
 1962         length += print_frac (s + length, 1, c->currnt.fse, c->cursec);
 1963 
 1964         /* CRC errors, remote CRC errors (E-bit) */
 1965         length += print_frac (s + length, 0, c->currnt.crce, c->cursec);
 1966         length += print_frac (s + length, 1, c->currnt.rcrce, c->cursec);
 1967 
 1968         /* Errored seconds, line errored seconds */
 1969         length += print_frac (s + length, 0, c->currnt.es, c->cursec);
 1970         length += print_frac (s + length, 1, c->currnt.les, c->cursec);
 1971 
 1972         /* Severely errored seconds, burst errored seconds */
 1973         length += print_frac (s + length, 0, c->currnt.ses, c->cursec);
 1974         length += print_frac (s + length, 1, c->currnt.bes, c->cursec);
 1975 
 1976         /* Out of frame seconds, controlled slip seconds */
 1977         length += print_frac (s + length, 0, c->currnt.oofs, c->cursec);
 1978         length += print_frac (s + length, 1, c->currnt.css, c->cursec);
 1979 
 1980         length += sprintf (s + length, " %s\n", format_e1_status (c->status));
 1981 
 1982         /* Print total statistics. */
 1983         length += print_frac (s + length, 0, total.uas, totsec);
 1984         length += print_frac (s + length, 1, 60 * total.dm, totsec);
 1985 
 1986         length += print_frac (s + length, 0, total.bpv, totsec);
 1987         length += print_frac (s + length, 1, total.fse, totsec);
 1988 
 1989         length += print_frac (s + length, 0, total.crce, totsec);
 1990         length += print_frac (s + length, 1, total.rcrce, totsec);
 1991 
 1992         length += print_frac (s + length, 0, total.es, totsec);
 1993         length += print_frac (s + length, 1, total.les, totsec);
 1994 
 1995         length += print_frac (s + length, 0, total.ses, totsec);
 1996         length += print_frac (s + length, 1, total.bes, totsec);
 1997 
 1998         length += print_frac (s + length, 0, total.oofs, totsec);
 1999         length += print_frac (s + length, 1, total.css, totsec);
 2000 
 2001         length += sprintf (s + length, " -- Total\n");
 2002         return length;
 2003 }
 2004 
 2005 static int print_chan (char *s, cp_chan_t *c)
 2006 {
 2007         drv_t *d = c->sys;
 2008         bdrv_t *bd = d->board->sys;
 2009         int length = 0;
 2010 
 2011         length += sprintf (s + length, "cp%d", c->board->num * NCHAN + c->num);
 2012         if (d->chan->debug)
 2013                 length += sprintf (s + length, " debug=%d", d->chan->debug);
 2014 
 2015         if (c->board->mux) {
 2016                 length += sprintf (s + length, " cfg=C");
 2017         } else {
 2018                 length += sprintf (s + length, " cfg=A");
 2019         }
 2020 
 2021         if (c->baud)
 2022                 length += sprintf (s + length, " %ld", c->baud);
 2023         else
 2024                 length += sprintf (s + length, " extclock");
 2025 
 2026         if (c->type == T_E1 || c->type == T_G703)
 2027                 switch (c->gsyn) {
 2028                 case GSYN_INT   : length += sprintf (s + length, " syn=int");     break;
 2029                 case GSYN_RCV   : length += sprintf (s + length, " syn=rcv");     break;
 2030                 case GSYN_RCV0  : length += sprintf (s + length, " syn=rcv0");    break;
 2031                 case GSYN_RCV1  : length += sprintf (s + length, " syn=rcv1");    break;
 2032                 case GSYN_RCV2  : length += sprintf (s + length, " syn=rcv2");    break;
 2033                 case GSYN_RCV3  : length += sprintf (s + length, " syn=rcv3");    break;
 2034                 }
 2035         if (c->type == T_SERIAL) {
 2036                 length += sprintf (s + length, " dpll=%s",   c->dpll   ? "on" : "off");
 2037                 length += sprintf (s + length, " nrzi=%s",   c->nrzi   ? "on" : "off");
 2038                 length += sprintf (s + length, " invclk=%s", c->invtxc ? "on" : "off");
 2039         }
 2040         if (c->type == T_E1)
 2041                 length += sprintf (s + length, " higain=%s", c->higain ? "on" : "off");
 2042 
 2043         length += sprintf (s + length, " loop=%s", c->lloop ? "on" : "off");
 2044 
 2045         if (c->type == T_E1)
 2046                 length += sprintf (s + length, " ts=%s", format_timeslots (c->ts));
 2047         if (c->type == T_G703) {
 2048                 int lq, x;
 2049 
 2050                 x = splimp ();
 2051                 CP_LOCK (bd);
 2052                 lq = cp_get_lq (c);
 2053                 CP_UNLOCK (bd);
 2054                 splx (x);
 2055                 length += sprintf (s + length, " (level=-%.1fdB)", lq / 10.0);
 2056         }
 2057         length += sprintf (s + length, "\n");
 2058         return length;
 2059 }
 2060 
 2061 static int ng_cp_rcvmsg (node_p node, item_p item, hook_p lasthook)
 2062 {
 2063         drv_t *d = NG_NODE_PRIVATE (node);
 2064         struct ng_mesg *msg;
 2065         struct ng_mesg *resp = NULL;
 2066         int error = 0;
 2067 
 2068         CP_DEBUG (d, ("Rcvmsg\n"));
 2069         NGI_GET_MSG (item, msg);
 2070         switch (msg->header.typecookie) {
 2071         default:
 2072                 error = EINVAL;
 2073                 break;
 2074 
 2075         case NGM_CP_COOKIE:
 2076                 printf ("Not implemented yet\n");
 2077                 error = EINVAL;
 2078                 break;
 2079 
 2080         case NGM_GENERIC_COOKIE:
 2081                 switch (msg->header.cmd) {
 2082                 default:
 2083                         error = EINVAL;
 2084                         break;
 2085 
 2086                 case NGM_TEXT_STATUS: {
 2087                         char *s;
 2088                         int l = 0;
 2089                         int dl = sizeof (struct ng_mesg) + 730;
 2090 
 2091                         NG_MKRESPONSE (resp, msg, dl, M_NOWAIT);
 2092                         if (! resp) {
 2093                                 error = ENOMEM;
 2094                                 break;
 2095                         }
 2096                         s = (resp)->data;
 2097                         if (d) {
 2098                         l += print_chan (s + l, d->chan);
 2099                         l += print_stats (s + l, d->chan, 1);
 2100                         l += print_modems (s + l, d->chan, 1);
 2101                         l += print_e1_stats (s + l, d->chan);
 2102                         } else
 2103                                 l += sprintf (s + l, "Error: node not connect to channel");
 2104                         strncpy ((resp)->header.cmdstr, "status", NG_CMDSTRSIZ);
 2105                         }
 2106                         break;
 2107                 }
 2108                 break;
 2109         }
 2110         NG_RESPOND_MSG (error, node, item, resp);
 2111         NG_FREE_MSG (msg);
 2112         return error;
 2113 }
 2114 
 2115 static int ng_cp_rcvdata (hook_p hook, item_p item)
 2116 {
 2117         drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE(hook));
 2118         struct mbuf *m;
 2119         struct ng_tag_prio *ptag;
 2120         bdrv_t *bd = d->board->sys;
 2121         struct ifqueue *q;
 2122         int s;
 2123 
 2124         CP_DEBUG2 (d, ("Rcvdata\n"));
 2125         NGI_GET_M (item, m);
 2126         NG_FREE_ITEM (item);
 2127         if (! NG_HOOK_PRIVATE (hook) || ! d) {
 2128                 NG_FREE_M (m);
 2129                 return ENETDOWN;
 2130         }
 2131 
 2132         /* Check for high priority data */
 2133         if ((ptag = (struct ng_tag_prio *)m_tag_locate(m, NGM_GENERIC_COOKIE,
 2134             NG_TAG_PRIO, NULL)) != NULL && (ptag->priority > NG_PRIO_CUTOFF) )
 2135                 q = &d->hi_queue;
 2136         else
 2137                 q = &d->queue;
 2138 
 2139         s = splimp ();
 2140         CP_LOCK (bd);
 2141         IF_LOCK (q);
 2142         if (_IF_QFULL (q)) {
 2143                 IF_UNLOCK (q);
 2144                 CP_UNLOCK (bd);
 2145                 splx (s);
 2146                 NG_FREE_M (m);
 2147                 return ENOBUFS;
 2148         }
 2149         _IF_ENQUEUE (q, m);
 2150         IF_UNLOCK (q);
 2151         cp_start (d);
 2152         CP_UNLOCK (bd);
 2153         splx (s);
 2154         return 0;
 2155 }
 2156 
 2157 static int ng_cp_rmnode (node_p node)
 2158 {
 2159         drv_t *d = NG_NODE_PRIVATE (node);
 2160 
 2161         CP_DEBUG (d, ("Rmnode\n"));
 2162         if (d && d->running) {
 2163                 bdrv_t *bd = d->board->sys;
 2164                 int s = splimp ();
 2165                 CP_LOCK (bd);
 2166                 cp_down (d);
 2167                 CP_UNLOCK (bd);
 2168                 splx (s);
 2169         }
 2170 #ifdef  KLD_MODULE
 2171         if (node->nd_flags & NGF_REALLY_DIE) {
 2172                 NG_NODE_SET_PRIVATE (node, NULL);
 2173                 NG_NODE_UNREF (node);
 2174         }
 2175         NG_NODE_REVIVE(node);           /* Persistent node */
 2176 #endif
 2177         return 0;
 2178 }
 2179 
 2180 static int ng_cp_connect (hook_p hook)
 2181 {
 2182         drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
 2183 
 2184         if (d) {
 2185                 CP_DEBUG (d, ("Connect\n"));
 2186                 callout_reset (&d->timeout_handle, hz, cp_watchdog_timer, d);
 2187         }
 2188         
 2189         return 0;
 2190 }
 2191 
 2192 static int ng_cp_disconnect (hook_p hook)
 2193 {
 2194         drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
 2195 
 2196         if (d) {
 2197                 CP_DEBUG (d, ("Disconnect\n"));
 2198                 if (NG_HOOK_PRIVATE (hook))
 2199                 {
 2200                         bdrv_t *bd = d->board->sys;
 2201                         int s = splimp ();
 2202                         CP_LOCK (bd);
 2203                         cp_down (d);
 2204                         CP_UNLOCK (bd);
 2205                         splx (s);
 2206                 }
 2207                 /* If we were wait it than it reasserted now, just stop it. */
 2208                 if (!callout_drain (&d->timeout_handle))
 2209                         callout_stop (&d->timeout_handle);
 2210         }
 2211         return 0;
 2212 }
 2213 #endif
 2214 
 2215 static int cp_modevent (module_t mod, int type, void *unused)
 2216 {
 2217         static int load_count = 0;
 2218 
 2219         switch (type) {
 2220         case MOD_LOAD:
 2221 #ifdef NETGRAPH
 2222                 if (ng_newtype (&typestruct))
 2223                         printf ("Failed to register ng_cp\n");
 2224 #endif
 2225                 ++load_count;
 2226                 callout_init (&timeout_handle, 1);
 2227                 callout_reset (&timeout_handle, hz*5, cp_timeout, 0);
 2228                 break;
 2229         case MOD_UNLOAD:
 2230                 if (load_count == 1) {
 2231                         printf ("Removing device entry for Tau-PCI\n");
 2232 #ifdef NETGRAPH
 2233                         ng_rmtype (&typestruct);
 2234 #endif                  
 2235                 }
 2236                 /* If we were wait it than it reasserted now, just stop it.
 2237                  * Actually we shouldn't get this condition. But code could be
 2238                  * changed in the future, so just be a litle paranoid.
 2239                  */
 2240                 if (!callout_drain (&timeout_handle))
 2241                         callout_stop (&timeout_handle);
 2242                 --load_count;
 2243                 break;
 2244         case MOD_SHUTDOWN:
 2245                 break;
 2246         }
 2247         return 0;
 2248 }
 2249 
 2250 #ifdef NETGRAPH
 2251 static struct ng_type typestruct = {
 2252         .version        = NG_ABI_VERSION,
 2253         .name           = NG_CP_NODE_TYPE,
 2254         .constructor    = ng_cp_constructor,
 2255         .rcvmsg         = ng_cp_rcvmsg,
 2256         .shutdown       = ng_cp_rmnode,
 2257         .newhook        = ng_cp_newhook,
 2258         .connect        = ng_cp_connect,
 2259         .rcvdata        = ng_cp_rcvdata,
 2260         .disconnect     = ng_cp_disconnect,
 2261 };
 2262 #endif /*NETGRAPH*/
 2263 
 2264 #ifdef NETGRAPH
 2265 MODULE_DEPEND (ng_cp, netgraph, NG_ABI_VERSION, NG_ABI_VERSION, NG_ABI_VERSION);
 2266 #else
 2267 MODULE_DEPEND (cp, sppp, 1, 1, 1);
 2268 #endif
 2269 DRIVER_MODULE (cp, pci, cp_driver, cp_devclass, cp_modevent, NULL);
 2270 MODULE_VERSION (cp, 1);

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