Initial import of ce(4) driver for Cronyx Tau-PCI/32 adapters.

Not yet connected to the build.

1 files changed, 2681 insertions, 0 deletions

diff --git a/sys/dev/ce/if_ce.c b/sys/dev/ce/if_ce.c
new file mode 100644
index 0000000..1735169
--- /dev/null
+++ b/sys/dev/ce/if_ce.c
@@ -0,0 +1,2681 @@
+/*
+ * Cronyx-Tau32-PCI adapter driver for FreeBSD.
+ *
+ * Copyright (C) 2003-2005 Cronyx Engineering.
+ * Copyright (C) 2003-2005 Kurakin Roman, <rik@FreeBSD.org>
+ *
+ * This software is distributed with NO WARRANTIES, not even the implied
+ * warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Authors grant any other persons or organisations a permission to use,
+ * modify and redistribute this software in source and binary forms,
+ * as long as this message is kept with the software, all derivative
+ * works or modified versions.
+ *
+ * $Cronyx: if_ce.c,v 1.9.2.8 2005/11/21 14:17:44 rik Exp $
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+
+#if __FreeBSD_version >= 500000
+#   define NPCI 1
+#else
+#   include "pci.h"
+#endif
+
+#if NPCI > 0
+
+#include <sys/ucred.h>
+#include <sys/proc.h>
+#include <sys/systm.h>
+#include <sys/mbuf.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/conf.h>
+#include <sys/malloc.h>
+#include <sys/socket.h>
+#include <sys/sockio.h>
+#if __FreeBSD_version >= 504000
+#include <sys/sysctl.h>
+#endif
+#include <sys/tty.h>
+#include <sys/bus.h>
+#include <vm/vm.h>
+#include <vm/pmap.h>
+#include <net/if.h>
+#if __FreeBSD_version > 501000
+#   include <dev/pci/pcivar.h>
+#   include <dev/pci/pcireg.h>
+#else
+#   include <pci/pcivar.h>
+#   include <pci/pcireg.h>
+#endif
+#include <machine/bus.h>
+#include <sys/rman.h>
+#include "opt_ng_cronyx.h"
+#ifdef NETGRAPH_CRONYX
+#   include "opt_netgraph.h"
+#   ifndef NETGRAPH
+#	error #option	NETGRAPH missed from configuration
+#   endif
+#   include <netgraph/ng_message.h>
+#   include <netgraph/netgraph.h>
+#   include <dev/ce/ng_ce.h>
+#else
+#   include <net/if_types.h>
+#   include <net/if_sppp.h>
+#   define PP_CISCO IFF_LINK2
+#   if __FreeBSD_version < 500000
+#	include <bpf.h>
+#   endif
+#   include <net/bpf.h>
+#   define NBPFILTER NBPF
+#endif
+#include <dev/cx/machdep.h>
+#include <dev/ce/ceddk.h>
+#include <machine/cserial.h>
+#include <machine/resource.h>
+#include <machine/pmap.h>
+
+/* If we don't have Cronyx's sppp version, we don't have fr support via sppp */
+#ifndef PP_FR
+#define PP_FR 0
+#endif
+
+#ifndef IFP2SP
+#define IFP2SP(ifp)	((struct sppp*)ifp)
+#endif
+#ifndef SP2IFP
+#define SP2IFP(sp)	((struct ifnet*)sp)
+#endif
+
+#ifndef PCIR_BAR
+#define PCIR_BAR(x)	(PCIR_MAPS + (x) * 4)
+#endif
+
+/* define as our previous return value */
+#ifndef BUS_PROBE_DEFAULT
+#define BUS_PROBE_DEFAULT 0
+#endif
+
+#define CE_DEBUG(d,s)	({if (d->chan->debug) {\
+				printf ("%s: ", d->name); printf s;}})
+#define CE_DEBUG2(d,s)	({if (d->chan->debug>1) {\
+				printf ("%s: ", d->name); printf s;}})
+
+#ifndef CALLOUT_MPSAFE
+#define CALLOUT_MPSAFE		0
+#endif
+
+#ifndef IF_DRAIN
+#define IF_DRAIN(ifq) do {		\
+	struct mbuf *m;			\
+	for (;;) {			\
+		IF_DEQUEUE(ifq, m);	\
+		if (m == NULL)		\
+			break;		\
+		m_freem(m);		\
+	}				\
+} while (0)
+#endif
+
+#ifndef _IF_QLEN
+#define _IF_QLEN(ifq)	((ifq)->ifq_len)
+#endif
+
+#ifndef callout_drain
+#define callout_drain callout_stop
+#endif
+
+#if __FreeBSD_version >= 504000
+#define CE_LOCK_NAME		"ceX"
+
+static int	ce_mpsafenet = 1;
+TUNABLE_INT("debug.ce.mpsafenet", &ce_mpsafenet);
+SYSCTL_NODE(_debug, OID_AUTO, ce, CTLFLAG_RD, 0, "Cronyx Tau32-PCI Adapters");
+SYSCTL_INT(_debug_ce, OID_AUTO, mpsafenet, CTLFLAG_RD, &ce_mpsafenet, 0,
+	"Enable/disable MPSAFE network support for Cronyx Tau32-PCI Adapters");
+
+#define CE_LOCK(_bd)		do { \
+				    if (ce_mpsafenet) \
+					mtx_lock (&(_bd)->ce_mtx); \
+				} while (0)
+#define CE_UNLOCK(_bd)		do { \
+				    if (ce_mpsafenet) \
+					mtx_unlock (&(_bd)->ce_mtx); \
+				} while (0)
+
+#define CE_LOCK_ASSERT(_bd)	do { \
+				    if (ce_mpsafenet) \
+					mtx_assert (&(_bd)->ce_mtx, MA_OWNED); \
+				} while (0)
+#else
+static int	ce_mpsafenet = 0;
+
+#define	CE_LOCK(_bd)		do {} while (0 && (_bd) && ce_mpsafenet)
+#define	CE_UNLOCK(_bd)		do {} while (0 && (_bd) && ce_mpsafenet)
+#define	CE_LOCK_ASSERT(_bd)	do {} while (0 && (_bd) && ce_mpsafenet)
+#endif
+
+#define CDEV_MAJOR	185
+
+static	int ce_probe		__P((device_t));
+static	int ce_attach		__P((device_t));
+static	int ce_detach		__P((device_t));
+
+static	device_method_t ce_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe,		ce_probe),
+	DEVMETHOD(device_attach,	ce_attach),
+	DEVMETHOD(device_detach,	ce_detach),
+
+	{0, 0}
+};
+
+typedef struct _ce_dma_mem_t {
+	unsigned long	phys;
+	void		*virt;
+	size_t		size;
+#if __FreeBSD_version >= 500000
+	bus_dma_tag_t	dmat;
+	bus_dmamap_t	mapp;
+#endif
+} ce_dma_mem_t;
+
+typedef struct _drv_t {
+	char	name [8];
+	int	running;
+	ce_board_t	*board;
+	ce_chan_t	*chan;
+	struct ifqueue	rqueue;
+#ifdef NETGRAPH
+	char	nodename [NG_NODELEN+1];
+	hook_p	hook;
+	hook_p	debug_hook;
+	node_p	node;
+	struct	ifqueue queue;
+	struct	ifqueue hi_queue;
+	short	timeout;
+	struct	callout timeout_handle;
+#else
+	struct	ifnet *ifp;
+#endif
+#if __FreeBSD_version >= 500000
+	struct	cdev *devt;
+#else /* __FreeBSD_version < 500000 */
+	dev_t	devt;
+#endif
+	ce_dma_mem_t dmamem;
+} drv_t;
+
+typedef	struct _bdrv_t {
+	ce_board_t	*board;
+	struct resource *ce_res;
+	struct resource *ce_irq;
+	void		*ce_intrhand;
+	ce_dma_mem_t	dmamem;
+	drv_t		channel [NCHAN];
+#if __FreeBSD_version >= 504000
+	struct mtx	ce_mtx;
+#endif
+} bdrv_t;
+
+static	driver_t ce_driver = {
+	"ce",
+	ce_methods,
+	sizeof(bdrv_t),
+};
+
+static	devclass_t ce_devclass;
+
+static void ce_receive (ce_chan_t *c, unsigned char *data, int len);
+static void ce_transmit (ce_chan_t *c, void *attachment, int len);
+static void ce_error (ce_chan_t *c, int data);
+static void ce_up (drv_t *d);
+static void ce_start (drv_t *d);
+static void ce_down (drv_t *d);
+static void ce_watchdog (drv_t *d);
+#ifdef NETGRAPH
+extern struct ng_type typestruct;
+#else
+static void ce_ifstart (struct ifnet *ifp);
+static void ce_tlf (struct sppp *sp);
+static void ce_tls (struct sppp *sp);
+static void ce_ifwatchdog (struct ifnet *ifp);
+static int ce_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data);
+static void ce_initialize (void *softc);
+#endif
+
+static ce_board_t *adapter [NBRD];
+static drv_t *channel [NBRD*NCHAN];
+static struct callout led_timo [NBRD];
+static struct callout timeout_handle;
+
+static int ce_destroy = 0;
+
+/*
+ * Print the mbuf chain, for debug purposes only.
+ */
+static void printmbuf (struct mbuf *m)
+{
+	printf ("mbuf:");
+	for (; m; m=m->m_next) {
+		if (m->m_flags & M_PKTHDR)
+			printf (" HDR %d:", m->m_pkthdr.len);
+		if (m->m_flags & M_EXT)
+			printf (" EXT:");
+		printf (" %d", m->m_len);
+	}
+	printf ("\n");
+}
+
+/*
+ * Make an mbuf from data.
+ */
+static struct mbuf *makembuf (void *buf, unsigned len)
+{
+	struct mbuf *m;
+
+	MGETHDR (m, M_DONTWAIT, MT_DATA);
+	if (! m)
+		return 0;
+	MCLGET (m, M_DONTWAIT);
+	if (! (m->m_flags & M_EXT)) {
+		m_freem (m);
+		return 0;
+	}
+	m->m_pkthdr.len = m->m_len = len;
+	bcopy (buf, mtod (m, caddr_t), len);
+	return m;
+}
+
+static int ce_probe (device_t dev)
+{
+	if ((pci_get_vendor (dev) == TAU32_PCI_VENDOR_ID) &&
+	    (pci_get_device (dev) == TAU32_PCI_DEVICE_ID)) {
+		device_set_desc (dev, "Cronyx-Tau32-PCI serial adapter");
+		return BUS_PROBE_DEFAULT;
+	}
+	return ENXIO;
+}
+
+static void ce_timeout (void *arg)
+{
+	drv_t *d;
+	int s, i, k;
+
+	for (i = 0; i < NBRD; ++i) {
+		if (adapter[i] == NULL)
+			continue;
+		for (k = 0; k < NCHAN; ++k) {
+			s = splimp ();
+			if (ce_destroy) {
+				splx (s);
+				return;
+			}
+			d = channel[i * NCHAN + k];
+			if (!d) {
+				splx (s);
+				continue;
+			}
+			CE_LOCK ((bdrv_t *)d->board->sys);
+			switch (d->chan->type) {
+			case T_E1:
+				ce_e1_timer (d->chan);
+				break;
+			default:
+				break;
+			}
+			CE_UNLOCK ((bdrv_t *)d->board->sys);
+			splx (s);
+		}
+	}
+	s = splimp ();
+	if (!ce_destroy)
+		callout_reset (&timeout_handle, hz, ce_timeout, 0);
+	splx (s);
+}
+
+static void ce_led_off (void *arg)
+{
+	ce_board_t *b = arg;
+	bdrv_t *bd = (bdrv_t *) b->sys;
+	int s;
+	s = splimp ();
+	if (ce_destroy) {
+		splx (s);
+		return;
+	}
+	CE_LOCK (bd);
+	TAU32_LedSet (b->ddk.pControllerObject, 0);
+	CE_UNLOCK (bd);
+	splx (s);
+}
+
+static void ce_intr (void *arg)
+{
+	bdrv_t *bd = arg;
+	ce_board_t *b = bd->board;
+	int s;
+	int i;
+#if __FreeBSD_version >= 500000 && defined NETGRAPH
+	int error;
+#endif
+	s = splimp ();
+	if (ce_destroy) {
+		splx (s);
+		return;
+	}
+	CE_LOCK (bd);
+	/* Turn LED on. */
+	TAU32_LedSet (b->ddk.pControllerObject, 1);
+
+	TAU32_HandleInterrupt (b->ddk.pControllerObject);
+
+	/* Turn LED off 50 msec later. */
+	callout_reset (&led_timo[b->num], hz/20, ce_led_off, b);
+	CE_UNLOCK (bd);
+	splx (s);
+
+	/* Pass packets in a lock-free state */
+	for (i = 0; i < NCHAN && b->chan[i].type; i++) {
+		drv_t *d = b->chan[i].sys;
+		struct mbuf *m;
+		if (!d || !d->running)
+			continue;
+		while (_IF_QLEN(&d->rqueue)) {
+			IF_DEQUEUE (&d->rqueue,m);
+			if (!m)
+				continue;
+#ifdef NETGRAPH
+			if (d->hook) {
+#if __FreeBSD_version >= 500000
+				NG_SEND_DATA_ONLY (error, d->hook, m);
+#else
+				ng_queue_data (d->hook, m, 0);
+#endif
+			} else {
+				IF_DRAIN (&d->rqueue);
+			}
+#else
+			sppp_input (d->ifp, m);	
+#endif
+		}
+	}
+}
+
+extern struct cdevsw ce_cdevsw;
+
+#if __FreeBSD_version >= 500000
+static void
+ce_bus_dmamap_addr (void *arg, bus_dma_segment_t *segs, int nseg, int error)
+{
+	unsigned long *addr;
+
+	if (error)
+		return;
+
+	KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
+	addr = arg;
+	*addr = segs->ds_addr;
+}
+
+#ifndef BUS_DMA_ZERO
+#define BUS_DMA_ZERO 0
+#endif
+
+static int
+ce_bus_dma_mem_alloc (int bnum, int cnum, ce_dma_mem_t *dmem)
+{
+	int error;
+
+	error = bus_dma_tag_create (NULL, 16, 0, BUS_SPACE_MAXADDR_32BIT,
+		BUS_SPACE_MAXADDR, NULL, NULL, dmem->size, 1,
+		dmem->size, 0,
+#if __FreeBSD_version >= 502000
+		NULL, NULL,
+#endif
+		&dmem->dmat);
+	if (error) {
+		if (cnum >= 0)	printf ("ce%d-%d: ", bnum, cnum);
+		else		printf ("ce%d: ", bnum);
+		printf ("couldn't allocate tag for dma memory\n");
+ 		return 0;
+	}
+	error = bus_dmamem_alloc (dmem->dmat, (void **)&dmem->virt,
+		BUS_DMA_NOWAIT | BUS_DMA_ZERO, &dmem->mapp);
+	if (error) {
+		if (cnum >= 0)	printf ("ce%d-%d: ", bnum, cnum);
+		else		printf ("ce%d: ", bnum);
+		printf ("couldn't allocate mem for dma memory\n");
+		bus_dma_tag_destroy (dmem->dmat);
+ 		return 0;
+	}
+	error = bus_dmamap_load (dmem->dmat, dmem->mapp, dmem->virt,
+		dmem->size, ce_bus_dmamap_addr, &dmem->phys, 0);
+	if (error) {
+		if (cnum >= 0)	printf ("ce%d-%d: ", bnum, cnum);
+		else		printf ("ce%d: ", bnum);
+		printf ("couldn't load mem map for dma memory\n");
+		bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp);
+		bus_dma_tag_destroy (dmem->dmat);
+ 		return 0;
+	}
+#if __FreeBSD_version >= 502000
+	bzero (dmem->virt, dmem->size);
+#endif
+	return 1;
+}
+
+static void
+ce_bus_dma_mem_free (ce_dma_mem_t *dmem)
+{
+	bus_dmamap_unload (dmem->dmat, dmem->mapp);
+	bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp);
+	bus_dma_tag_destroy (dmem->dmat);
+}
+#else
+static int
+ce_bus_dma_mem_alloc (int bnum, int cnum, ce_dma_mem_t *dmem)
+{
+	dmem->virt = contigmalloc (dmem->size, M_DEVBUF, M_WAITOK,
+				   0x100000, 0xffffffff, 16, 0);
+	if (dmem->virt == NULL) {
+		if (cnum >= 0)	printf ("ce%d-%d: ", bnum, cnum);
+		else		printf ("ce%d: ", bnum);
+		printf ("couldn't allocate dma memory\n");
+ 		return 0;
+	}
+	dmem->phys = vtophys (dmem->virt);
+	bzero (dmem->virt, dmem->size);
+	return 1;
+}
+
+static void
+ce_bus_dma_mem_free (ce_dma_mem_t *dmem)
+{
+	contigfree (dmem->virt, dmem->size, M_DEVBUF);
+}
+#endif
+
+/*
+ * Called if the probe succeeded.
+ */
+static int ce_attach (device_t dev)
+{
+	bdrv_t *bd = device_get_softc (dev);
+	int unit = device_get_unit (dev);
+#if __FreeBSD_version >= 504000
+	char *ce_ln = CE_LOCK_NAME;
+#endif
+	vm_offset_t vbase;
+	int rid, error;
+	ce_board_t *b;
+	ce_chan_t *c;
+	drv_t *d;
+	int s;
+		
+	b = malloc (sizeof(ce_board_t), M_DEVBUF, M_WAITOK);
+	if (!b) {
+		printf ("ce%d: couldn't allocate memory\n", unit);
+		return (ENXIO);
+	}
+	bzero (b, sizeof(ce_board_t));
+
+	b->ddk.sys = &b;
+
+#if __FreeBSD_version >= 440000
+	pci_enable_busmaster (dev);
+#endif
+
+	bd->dmamem.size = TAU32_ControllerObjectSize;
+	if (! ce_bus_dma_mem_alloc (unit, -1, &bd->dmamem)) {
+		free (b, M_DEVBUF);
+		return (ENXIO);
+	}
+	b->ddk.pControllerObject = bd->dmamem.virt;
+
+	bd->board = b;
+	b->sys = bd;
+	rid = PCIR_BAR(0);
+	bd->ce_res = bus_alloc_resource (dev, SYS_RES_MEMORY, &rid,
+			0, ~0, 1, RF_ACTIVE);
+	if (! bd->ce_res) {
+		printf ("ce%d: cannot map memory\n", unit);
+		ce_bus_dma_mem_free (&bd->dmamem);
+		free (b, M_DEVBUF);
+		return (ENXIO);
+	}
+	vbase = (vm_offset_t) rman_get_virtual (bd->ce_res);
+
+	b->ddk.PciBar1VirtualAddress = (void *)vbase;
+	b->ddk.ControllerObjectPhysicalAddress = bd->dmamem.phys;
+	b->ddk.pErrorNotifyCallback = ce_error_callback;
+	b->ddk.pStatusNotifyCallback = ce_status_callback;
+	b->num = unit;
+
+	TAU32_BeforeReset(&b->ddk);
+	pci_write_config (dev, TAU32_PCI_RESET_ADDRESS, TAU32_PCI_RESET_ON, 4);
+	pci_write_config (dev, TAU32_PCI_RESET_ADDRESS, TAU32_PCI_RESET_OFF, 4);
+
+	if(!TAU32_Initialize(&b->ddk, 0))
+	{
+		printf ("ce%d: init adapter error 0x%08x, bus dead bits 0x%08lx\n",
+			unit, b->ddk.InitErrors, b->ddk.DeadBits);
+		bus_release_resource (dev, SYS_RES_MEMORY, PCIR_BAR(0), bd->ce_res);
+		ce_bus_dma_mem_free (&bd->dmamem);
+		free (b, M_DEVBUF);
+		return (ENXIO);
+	}
+
+	s = splimp ();
+
+	ce_init_board (b);
+
+	rid = 0;
+	bd->ce_irq = bus_alloc_resource (dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
+			RF_SHAREABLE | RF_ACTIVE);
+	if (! bd->ce_irq) {
+		printf ("ce%d: cannot map interrupt\n", unit);
+		bus_release_resource (dev, SYS_RES_MEMORY, PCIR_BAR(0), bd->ce_res);
+		ce_bus_dma_mem_free (&bd->dmamem);
+		free (b, M_DEVBUF);
+		splx (s);
+		return (ENXIO);
+	}
+#if __FreeBSD_version >= 500000
+	callout_init (&led_timo[unit], ce_mpsafenet ? CALLOUT_MPSAFE : 0);
+#else
+	callout_init (&led_timo[unit]);
+#endif
+	error  = bus_setup_intr (dev, bd->ce_irq,
+#if __FreeBSD_version >= 500013
+				INTR_TYPE_NET|(ce_mpsafenet?INTR_MPSAFE:0),
+#else
+				INTR_TYPE_NET,
+#endif
+				ce_intr, bd, &bd->ce_intrhand);
+	if (error) {
+		printf ("ce%d: cannot set up irq\n", unit);
+		bus_release_resource (dev, SYS_RES_IRQ, 0, bd->ce_irq);
+		bus_release_resource (dev, SYS_RES_MEMORY,
+				PCIR_BAR(0), bd->ce_res);
+		ce_bus_dma_mem_free (&bd->dmamem);
+		free (b, M_DEVBUF);
+		splx (s);
+		return (ENXIO);
+ 	}
+
+	switch (b->ddk.Model) {
+	case 1:		strcpy (b->name, TAU32_BASE_NAME);	break;
+	case 2:		strcpy (b->name, TAU32_LITE_NAME);	break;
+	case 3:		strcpy (b->name, TAU32_ADPCM_NAME);	break;
+	default:	strcpy (b->name, TAU32_UNKNOWN_NAME);	break;
+	}
+
+	printf ("ce%d: %s\n", unit, b->name);
+
+	for (c = b->chan; c < b->chan + NCHAN; ++c) {
+		c->num = (c - b->chan);
+		c->board = b;
+
+		d = &bd->channel[c->num];
+		d->dmamem.size = sizeof(ce_buf_t);
+		if (! ce_bus_dma_mem_alloc (unit, c->num, &d->dmamem))
+			continue;
+
+		channel [b->num * NCHAN + c->num] = d;
+		sprintf (d->name, "ce%d.%d", b->num, c->num);
+		d->board = b;
+		d->chan = c;
+		c->sys = d;
+	}
+
+	for (c = b->chan; c < b->chan + NCHAN; ++c) {
+		if (c->sys == NULL)
+			continue;
+		d = c->sys;
+
+#ifdef NETGRAPH
+		if (ng_make_node_common (&typestruct, &d->node) != 0) {
+			printf ("%s: cannot make common node\n", d->name);
+			d->node = NULL;
+			continue;
+		}
+#if __FreeBSD_version >= 500000
+		NG_NODE_SET_PRIVATE (d->node, d);
+		callout_init (&d->timeout_handle,
+			     ce_mpsafenet ? CALLOUT_MPSAFE : 0);
+#else
+		d->node->private = d;
+#endif
+		sprintf (d->nodename, "%s%d", NG_CE_NODE_TYPE,
+			 c->board->num * NCHAN + c->num);
+		if (ng_name_node (d->node, d->nodename)) {
+			printf ("%s: cannot name node\n", d->nodename);
+#if __FreeBSD_version >= 500000
+			NG_NODE_UNREF (d->node);
+#else
+			ng_rmnode (d->node);
+			ng_unref (d->node);
+#endif
+			continue;
+		}
+		d->queue.ifq_maxlen	= IFQ_MAXLEN;
+		d->hi_queue.ifq_maxlen	= IFQ_MAXLEN;
+		d->rqueue.ifq_maxlen	= IFQ_MAXLEN;
+#if __FreeBSD_version >= 500000
+		mtx_init (&d->queue.ifq_mtx, "ce_queue", NULL, MTX_DEF);
+		mtx_init (&d->hi_queue.ifq_mtx, "ce_queue_hi", NULL, MTX_DEF);
+		mtx_init (&d->rqueue.ifq_mtx, "ce_rqueue", NULL, MTX_DEF);
+#endif		
+#else /*NETGRAPH*/
+#if __FreeBSD_version >= 600031
+		d->ifp = if_alloc(IFT_PPP);
+#else
+		d->ifp = malloc (sizeof(struct sppp), M_DEVBUF, M_WAITOK);
+		bzero (d->ifp, sizeof(struct sppp));
+#endif
+		if (!d->ifp) {
+			printf ("%s: cannot if_alloc() interface\n", d->name);
+			continue;
+		}
+		d->ifp->if_softc	= d;
+#if __FreeBSD_version > 501000
+		if_initname (d->ifp, "ce", b->num * NCHAN + c->num);
+#else
+		d->ifp->if_unit		= b->num * NCHAN + c->num;
+		d->ifp->if_name		= "ce";
+#endif
+		d->ifp->if_mtu		= PP_MTU;
+		d->ifp->if_flags	= IFF_POINTOPOINT | IFF_MULTICAST;
+#if __FreeBSD_version >= 502125
+		if (!ce_mpsafenet)
+			d->ifp->if_flags |= IFF_NEEDSGIANT;
+#endif
+		d->ifp->if_ioctl	= ce_sioctl;
+		d->ifp->if_start	= ce_ifstart;
+		d->ifp->if_watchdog	= ce_ifwatchdog;
+		d->ifp->if_init		= ce_initialize;
+		d->rqueue.ifq_maxlen	= IFQ_MAXLEN;
+#if __FreeBSD_version >= 500000
+		mtx_init (&d->rqueue.ifq_mtx, "ce_rqueue", NULL, MTX_DEF);
+#endif		
+		sppp_attach (d->ifp);
+		if_attach (d->ifp);
+		IFP2SP(d->ifp)->pp_tlf	= ce_tlf;
+		IFP2SP(d->ifp)->pp_tls	= ce_tls;
+		/* If BPF is in the kernel, call the attach for it.
+		 * The header size of PPP or Cisco/HDLC is 4 bytes. */
+		bpfattach (d->ifp, DLT_PPP, 4);
+#endif /*NETGRAPH*/
+		ce_start_chan (c, 1, 1, d->dmamem.virt, d->dmamem.phys);
+
+		/* Register callback functions. */
+		ce_register_transmit (c, &ce_transmit);
+		ce_register_receive (c, &ce_receive);
+		ce_register_error (c, &ce_error);
+		d->devt = make_dev (&ce_cdevsw, b->num*NCHAN+c->num, UID_ROOT,
+				GID_WHEEL, 0600, "ce%d", b->num*NCHAN+c->num);
+	}
+
+#if __FreeBSD_version >= 504000
+	ce_ln[2] = '0' + unit;
+	mtx_init (&bd->ce_mtx, ce_ln, MTX_NETWORK_LOCK, MTX_DEF|MTX_RECURSE);
+#endif
+	CE_LOCK (bd);
+	TAU32_EnableInterrupts(b->ddk.pControllerObject);
+	adapter[unit] = b;
+	CE_UNLOCK (bd);
+	splx (s);
+
+	return 0;
+}
+
+static int ce_detach (device_t dev)
+{
+	bdrv_t *bd = device_get_softc (dev);
+	ce_board_t *b = bd->board;
+	ce_chan_t *c;
+	int s;
+
+#if __FreeBSD_version >= 504000
+	KASSERT (mtx_initialized (&bd->ce_mtx), ("ce mutex not initialized"));
+#endif
+	s = splimp ();
+	CE_LOCK (bd);
+	/* Check if the device is busy (open). */
+	for (c = b->chan; c < b->chan + NCHAN; ++c) {
+		drv_t *d = (drv_t*) c->sys;
+
+		/* XXX Non existen chan! */
+		if (! d || ! d->chan)
+			continue;
+		if (d->running) {
+			CE_UNLOCK (bd);
+			splx (s);
+			return EBUSY;
+		}
+	}
+
+	/* Ok, we can unload driver */
+	/* At first we should disable interrupts */
+	ce_destroy = 1;
+	TAU32_DisableInterrupts(b->ddk.pControllerObject);
+
+	callout_stop (&led_timo[b->num]);
+
+	for (c = b->chan; c < b->chan + NCHAN; ++c) {
+		drv_t *d = (drv_t*) c->sys;
+
+		if (! d || ! d->chan)
+			continue;
+#ifndef NETGRAPH
+#if __FreeBSD_version >= 410000 && NBPFILTER > 0
+		/* Detach from the packet filter list of interfaces. */
+		bpfdetach (d->ifp);
+#endif
+		/* Detach from the sync PPP list. */
+		sppp_detach (d->ifp);
+
+		/* Detach from the system list of interfaces. */
+		if_detach (d->ifp);
+#if __FreeBSD_version > 600031
+		if_free(d->ifp);
+#else
+		free (d->ifp, M_DEVBUF);
+#endif
+
+		IF_DRAIN (&d->rqueue);
+#if __FreeBSD_version >= 500000
+		mtx_destroy (&d->rqueue.ifq_mtx);
+#endif
+#else
+#if __FreeBSD_version >= 500000
+		if (d->node) {
+			ng_rmnode_self (d->node);
+			NG_NODE_UNREF (d->node);
+			d->node = NULL;
+		}
+		IF_DRAIN (&d->rqueue);
+		mtx_destroy (&d->queue.ifq_mtx);
+		mtx_destroy (&d->hi_queue.ifq_mtx);
+		mtx_destroy (&d->rqueue.ifq_mtx);
+#else
+		ng_rmnode (d->node);
+		d->node = 0;
+#endif
+#endif
+		destroy_dev (d->devt);
+	}
+
+	CE_UNLOCK (bd);
+	splx (s);
+
+	callout_drain (&led_timo[b->num]);
+
+	/* Disable the interrupt request. */
+	bus_teardown_intr (dev, bd->ce_irq, bd->ce_intrhand);
+	bus_deactivate_resource (dev, SYS_RES_IRQ, 0, bd->ce_irq);
+	bus_release_resource (dev, SYS_RES_IRQ, 0, bd->ce_irq);
+	TAU32_DestructiveHalt (b->ddk.pControllerObject, 0);
+	bus_release_resource (dev, SYS_RES_MEMORY, PCIR_BAR(0), bd->ce_res);
+
+	s = splimp ();
+	CE_LOCK (bd);
+	for (c = b->chan; c < b->chan + NCHAN; ++c) {
+		drv_t *d = (drv_t*) c->sys;
+
+		if (! d || ! d->chan)
+			continue;
+		channel [b->num * NCHAN + c->num] = 0;
+		/* Deallocate buffers. */
+		ce_bus_dma_mem_free (&d->dmamem);
+	}
+	adapter [b->num] = 0;
+	ce_bus_dma_mem_free (&bd->dmamem);
+	free (b, M_DEVBUF);
+	CE_UNLOCK (bd);
+	splx (s);
+#if __FreeBSD_version >= 504000
+	mtx_destroy (&bd->ce_mtx);
+#endif
+	return 0;
+}
+
+#ifndef NETGRAPH
+static void ce_ifstart (struct ifnet *ifp)
+{
+	drv_t *d = ifp->if_softc;
+	bdrv_t *bd = d->board->sys;
+
+	CE_LOCK (bd);
+	ce_start (d);
+	CE_UNLOCK (bd);
+}
+
+static void ce_ifwatchdog (struct ifnet *ifp)
+{
+	drv_t *d = ifp->if_softc;
+
+	ce_watchdog (d);
+}
+
+static void ce_tlf (struct sppp *sp)
+{
+	drv_t *d = SP2IFP(sp)->if_softc;
+
+	CE_DEBUG2 (d, ("ce_tlf\n"));
+	sp->pp_down (sp);
+}
+
+static void ce_tls (struct sppp *sp)
+{
+	drv_t *d = SP2IFP(sp)->if_softc;
+
+	CE_DEBUG2 (d, ("ce_tls\n"));
+	sp->pp_up (sp);
+}
+
+/*
+ * Process an ioctl request.
+ */
+static int ce_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data)
+{
+	drv_t *d = ifp->if_softc;
+	bdrv_t *bd = d->board->sys;
+	int error, s, was_up, should_be_up;
+
+#if __FreeBSD_version >= 600034
+	was_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
+#else
+	was_up = (ifp->if_flags & IFF_RUNNING) != 0;
+#endif
+	error = sppp_ioctl (ifp, cmd, data);
+
+	if (error)
+		return error;
+
+	if (! (ifp->if_flags & IFF_DEBUG))
+		d->chan->debug = 0;
+	else if (! d->chan->debug)
+		d->chan->debug = 1;
+
+	switch (cmd) {
+	default:	   CE_DEBUG2 (d, ("ioctl 0x%lx\n", cmd));   return 0;
+	case SIOCADDMULTI: CE_DEBUG2 (d, ("ioctl SIOCADDMULTI\n")); return 0;
+	case SIOCDELMULTI: CE_DEBUG2 (d, ("ioctl SIOCDELMULTI\n")); return 0;
+	case SIOCSIFFLAGS: CE_DEBUG2 (d, ("ioctl SIOCSIFFLAGS\n")); break;
+	case SIOCSIFADDR:  CE_DEBUG2 (d, ("ioctl SIOCSIFADDR\n"));  break;
+	}
+
+	/* We get here only in case of SIFFLAGS or SIFADDR. */
+	s = splimp ();
+	CE_LOCK (bd);
+#if __FreeBSD_version >= 600034
+	should_be_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
+#else
+	should_be_up = (ifp->if_flags & IFF_RUNNING) != 0;
+#endif
+	if (! was_up && should_be_up) {
+		/* Interface goes up -- start it. */
+		ce_up (d);
+		ce_start (d);
+	} else if (was_up && ! should_be_up) {
+		/* Interface is going down -- stop it. */
+/*		if ((IFP2SP(ifp)->pp_flags & PP_FR) || (ifp->if_flags & PP_CISCO))*/
+		ce_down (d);
+	}
+	CE_DEBUG (d, ("ioctl 0x%lx p4\n", cmd));
+	CE_UNLOCK (bd);
+	splx (s);
+	return 0;
+}
+
+/*
+ * Initialization of interface.
+ * It seems to be never called by upper level?
+ */
+static void ce_initialize (void *softc)
+{
+	drv_t *d = softc;
+
+	CE_DEBUG (d, ("ce_initialize\n"));
+}
+#endif /*NETGRAPH*/
+
+/*
+ * Stop the interface.  Called on splimp().
+ */
+static void ce_down (drv_t *d)
+{
+	CE_DEBUG (d, ("ce_down\n"));
+	/* Interface is going down -- stop it. */
+	ce_set_dtr (d->chan, 0);
+	ce_set_rts (d->chan, 0);
+
+	d->running = 0;
+}
+
+/*
+ * Start the interface.  Called on splimp().
+ */
+static void ce_up (drv_t *d)
+{
+	CE_DEBUG (d, ("ce_up\n"));
+	ce_set_dtr (d->chan, 1);
+	ce_set_rts (d->chan, 1);
+
+	d->running = 1;
+}
+
+/*
+ * Start output on the interface.  Get another datagram to send
+ * off of the interface queue, and copy it to the interface
+ * before starting the output.
+ */
+static void ce_send (drv_t *d)
+{
+	struct mbuf *m;
+	u_short len;
+
+	CE_DEBUG2 (d, ("ce_send\n"));
+
+	/* No output if the interface is down. */
+	if (! d->running)
+		return;
+
+	while (ce_transmit_space (d->chan)) {
+		/* Get the packet to send. */
+#ifdef NETGRAPH
+		IF_DEQUEUE (&d->hi_queue, m);
+		if (! m)
+			IF_DEQUEUE (&d->queue, m);
+#else
+		m = sppp_dequeue (d->ifp);
+#endif
+		if (! m)
+			return;
+#ifndef NETGRAPH
+		if (d->ifp->if_bpf)
+#if __FreeBSD_version >= 500000
+			BPF_MTAP (d->ifp, m);
+#else
+			bpf_mtap (d->ifp, m);
+#endif
+#endif
+#if __FreeBSD_version >= 490000
+		len = m_length (m, NULL);
+#else
+		len = m->m_pkthdr.len;
+#endif
+		if (len >= BUFSZ)
+			printf ("%s: too long packet: %d bytes: ",
+				d->name, len);
+		else if (! m->m_next)
+			ce_send_packet (d->chan, (u_char*) mtod (m, caddr_t), len, 0);
+		else {
+			ce_buf_item_t *item = (ce_buf_item_t*)d->chan->tx_queue;
+			m_copydata (m, 0, len, item->buf);
+			ce_send_packet (d->chan, item->buf, len, 0);
+		}
+		m_freem (m);
+		/* Set up transmit timeout, if the transmit ring is not empty.*/
+#ifdef NETGRAPH
+		d->timeout = 10;
+#else
+		d->ifp->if_timer = 10;
+#endif
+	}
+#ifndef NETGRAPH
+#if __FreeBSD_version >= 600034
+	d->ifp->if_flags |= IFF_DRV_OACTIVE;
+#else
+	d->ifp->if_flags |= IFF_OACTIVE;
+#endif
+#endif
+}
+
+/*
+ * Start output on the interface.
+ * Always called on splimp().
+ */
+static void ce_start (drv_t *d)
+{
+	if (d->running) {
+		if (! d->chan->dtr)
+			ce_set_dtr (d->chan, 1);
+		if (! d->chan->rts)
+			ce_set_rts (d->chan, 1);
+		ce_send (d);
+	}
+}
+
+/*
+ * Handle transmit timeouts.
+ * Recover after lost transmit interrupts.
+ * Always called on splimp().
+ */
+static void ce_watchdog (drv_t *d)
+{
+	bdrv_t *bd = d->board->sys;
+	CE_DEBUG (d, ("device timeout\n"));
+	if (d->running) {
+		int s = splimp ();
+		CE_LOCK (bd);
+		ce_set_dtr (d->chan, 0);
+		ce_set_rts (d->chan, 0);
+/*		ce_stop_chan (d->chan);*/
+/*		ce_start_chan (d->chan, 1, 1, 0, 0);*/
+		ce_set_dtr (d->chan, 1);
+		ce_set_rts (d->chan, 1);
+		ce_start (d);
+		CE_UNLOCK (bd);
+		splx (s);
+	}
+}
+
+static void ce_transmit (ce_chan_t *c, void *attachment, int len)
+{
+	drv_t *d = c->sys;
+
+#ifdef NETGRAPH
+	d->timeout = 0;
+#else
+	++d->ifp->if_opackets;
+#if __FreeBSD_version >=  600034
+	d->ifp->if_flags &= ~IFF_DRV_OACTIVE;
+#else
+	d->ifp->if_flags &= ~IFF_OACTIVE;
+#endif
+	d->ifp->if_timer = 0;
+#endif
+	ce_start (d);
+}
+
+static void ce_receive (ce_chan_t *c, unsigned char *data, int len)
+{
+	drv_t *d = c->sys;
+	struct mbuf *m;
+
+	if (! d->running)
+		return;
+
+	m = makembuf (data, len);
+	if (! m) {
+		CE_DEBUG (d, ("no memory for packet\n"));
+#ifndef NETGRAPH
+		++d->ifp->if_iqdrops;
+#endif
+		return;
+	}
+	if (c->debug > 1)
+		printmbuf (m);
+#ifdef NETGRAPH
+	m->m_pkthdr.rcvif = 0;
+	IF_ENQUEUE(&d->rqueue, m);
+#else
+	++d->ifp->if_ipackets;
+	m->m_pkthdr.rcvif = d->ifp;
+	/* Check if there's a BPF listener on this interface.
+	 * If so, hand off the raw packet to bpf. */
+	if (d->ifp->if_bpf)
+#if __FreeBSD_version >= 500000
+		BPF_TAP (d->ifp, data, len);
+#else
+		bpf_tap (d->ifp, data, len);
+#endif
+	IF_ENQUEUE(&d->rqueue, m);
+#endif
+}
+
+static void ce_error (ce_chan_t *c, int data)
+{
+	drv_t *d = c->sys;
+
+	switch (data) {
+	case CE_FRAME:
+		CE_DEBUG (d, ("frame error\n"));
+#ifndef NETGRAPH
+		++d->ifp->if_ierrors;
+#endif
+		break;
+	case CE_CRC:
+		CE_DEBUG (d, ("crc error\n"));
+#ifndef NETGRAPH
+		++d->ifp->if_ierrors;
+#endif
+		break;
+	case CE_OVERRUN:
+		CE_DEBUG (d, ("overrun error\n"));
+#ifndef NETGRAPH
+		++d->ifp->if_collisions;
+		++d->ifp->if_ierrors;
+#endif
+		break;
+	case CE_OVERFLOW:
+		CE_DEBUG (d, ("overflow error\n"));
+#ifndef NETGRAPH
+		++d->ifp->if_ierrors;
+#endif
+		break;
+	case CE_UNDERRUN:
+		CE_DEBUG (d, ("underrun error\n"));
+#ifdef NETGRAPH
+		d->timeout = 0;
+#else
+		++d->ifp->if_oerrors;
+#if __FreeBSD_version >= 600034
+		d->ifp->if_flags &= ~IFF_DRV_OACTIVE;
+#else
+		d->ifp->if_flags &= ~IFF_OACTIVE;
+#endif
+		d->ifp->if_timer = 0;
+#endif
+		ce_start (d);
+		break;
+	default:
+		CE_DEBUG (d, ("error #%d\n", data));
+		break;
+	}
+}
+
+/*
+ * You also need read, write, open, close routines.
+ * This should get you started
+ */
+#if __FreeBSD_version < 500000
+static int ce_open (dev_t dev, int oflags, int devtype, struct proc *p)
+#else
+static int ce_open (struct cdev *dev, int oflags, int devtype, struct thread *td)
+#endif
+{
+	int unit = minor (dev);
+	drv_t *d;
+
+	if (unit >= NBRD*NCHAN || ! (d = channel[unit]))
+		return ENXIO;
+	CE_DEBUG2 (d, ("ce_open\n"));
+	return 0;
+}
+
+/*
+ * Only called on the LAST close.
+ */
+#if __FreeBSD_version < 500000
+static int ce_close (dev_t dev, int fflag, int devtype, struct proc *p)
+#else
+static int ce_close (struct cdev *dev, int fflag, int devtype, struct thread *td)
+#endif
+{
+	drv_t *d = channel [minor (dev)];
+
+	CE_DEBUG2 (d, ("ce_close\n"));
+	return 0;
+}
+
+static int ce_modem_status (ce_chan_t *c)
+{
+	drv_t *d = c->sys;
+	bdrv_t *bd = d->board->sys;
+	int status, s;
+
+	status = d->running ? TIOCM_LE : 0;
+	s = splimp ();
+	CE_LOCK (bd);
+	if (ce_get_cd  (c)) status |= TIOCM_CD;
+	if (ce_get_cts (c)) status |= TIOCM_CTS;
+	if (ce_get_dsr (c)) status |= TIOCM_DSR;
+	if (c->dtr)	    status |= TIOCM_DTR;
+	if (c->rts)	    status |= TIOCM_RTS;
+	CE_UNLOCK (bd);
+	splx (s);
+	return status;
+}
+
+#if __FreeBSD_version < 500000
+static int ce_ioctl (dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
+#else
+static int ce_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
+#endif
+{
+	drv_t *d = channel [minor (dev)];
+	bdrv_t *bd = d->board->sys;
+	ce_chan_t *c = d->chan;
+	struct serial_statistics *st;
+	struct e1_statistics *opte1;
+	int error, s;
+	char mask[16];
+
+	switch (cmd) {
+	case SERIAL_GETREGISTERED:
+		CE_DEBUG2 (d, ("ioctl: getregistered\n"));
+		bzero (mask, sizeof(mask));
+		for (s=0; s<NBRD*NCHAN; ++s)
+			if (channel [s])
+				mask [s/8] |= 1 << (s & 7);
+		bcopy (mask, data, sizeof (mask));
+		return 0;
+
+#ifndef NETGRAPH
+	case SERIAL_GETPROTO:
+		CE_DEBUG2 (d, ("ioctl: getproto\n"));
+		strcpy ((char*)data, (IFP2SP(d->ifp)->pp_flags & PP_FR) ? "fr" :
+			(d->ifp->if_flags & PP_CISCO) ? "cisco" : "ppp");
+		return 0;
+
+	case SERIAL_SETPROTO:
+		CE_DEBUG2 (d, ("ioctl: setproto\n"));
+		/* Only for superuser! */
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else /* __FreeBSD_version >= 500000 */
+		error = suser (td);
+#endif /* __FreeBSD_version >= 500000 */
+		if (error)
+			return error;
+#if __FreeBSD_version >= 600034
+		if (d->ifp->if_flags & IFF_DRV_RUNNING)
+#else
+		if (d->ifp->if_flags & IFF_RUNNING)
+#endif
+			return EBUSY;
+		if (! strcmp ("cisco", (char*)data)) {
+			IFP2SP(d->ifp)->pp_flags &= ~(PP_FR);
+			IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
+			d->ifp->if_flags |= PP_CISCO;
+		} else if (! strcmp ("fr", (char*)data) && PP_FR) {
+			d->ifp->if_flags &= ~(PP_CISCO);
+			IFP2SP(d->ifp)->pp_flags |= PP_FR | PP_KEEPALIVE;
+		} else if (! strcmp ("ppp", (char*)data)) {
+			IFP2SP(d->ifp)->pp_flags &= ~PP_FR;
+			IFP2SP(d->ifp)->pp_flags &= ~PP_KEEPALIVE;
+			d->ifp->if_flags &= ~(PP_CISCO);
+		} else
+			return EINVAL;
+		return 0;
+
+	case SERIAL_GETKEEPALIVE:
+		CE_DEBUG2 (d, ("ioctl: getkeepalive\n"));
+		if ((IFP2SP(d->ifp)->pp_flags & PP_FR) ||
+			(d->ifp->if_flags & PP_CISCO))
+			return EINVAL;
+		*(int*)data = (IFP2SP(d->ifp)->pp_flags & PP_KEEPALIVE) ? 1 : 0;
+		return 0;
+
+	case SERIAL_SETKEEPALIVE:
+		CE_DEBUG2 (d, ("ioctl: setkeepalive\n"));
+		/* Only for superuser! */
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else
+		error = suser (td);
+#endif
+		if (error)
+			return error;
+		if ((IFP2SP(d->ifp)->pp_flags & PP_FR) ||
+			(d->ifp->if_flags & PP_CISCO))
+			return EINVAL;
+		s = splimp ();
+		CE_LOCK (bd);
+		if (*(int*)data)
+			IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
+		else
+			IFP2SP(d->ifp)->pp_flags &= ~PP_KEEPALIVE;
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+#endif /*NETGRAPH*/
+
+	case SERIAL_GETMODE:
+		CE_DEBUG2 (d, ("ioctl: getmode\n"));
+		*(int*)data = SERIAL_HDLC;
+		return 0;
+
+	case SERIAL_SETMODE:
+		/* Only for superuser! */
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else
+		error = suser (td);
+#endif
+		if (error)
+			return error;
+		if (*(int*)data != SERIAL_HDLC)
+			return EINVAL;
+		return 0;
+
+	case SERIAL_GETCFG:
+		CE_DEBUG2 (d, ("ioctl: getcfg\n"));
+		*(char*)data = 'c';
+		return 0;
+
+	case SERIAL_SETCFG:
+		CE_DEBUG2 (d, ("ioctl: setcfg\n"));
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else
+		error = suser (td);
+#endif
+		if (error)
+			return error;
+		if (*((char*)data) != 'c')
+			return EINVAL;
+		return 0;
+
+	case SERIAL_GETSTAT:
+		CE_DEBUG2 (d, ("ioctl: getstat\n"));
+		st = (struct serial_statistics*) data;
+		st->rintr  = c->rintr;
+		st->tintr  = c->tintr;
+		st->mintr  = 0;
+		st->ibytes = c->ibytes;
+		st->ipkts  = c->ipkts;
+		st->obytes = c->obytes;
+		st->opkts  = c->opkts;
+		st->ierrs  = c->overrun + c->frame + c->crc;
+		st->oerrs  = c->underrun;
+		return 0;
+
+	case SERIAL_GETESTAT:
+		CE_DEBUG2 (d, ("ioctl: getestat\n"));
+		if (c->type != T_E1)
+			return EINVAL;
+		opte1 = (struct e1_statistics*) data;
+
+		opte1->status	   = 0;
+		if (c->status & ESTS_NOALARM)
+			opte1->status |= E1_NOALARM;
+		if (c->status & ESTS_LOS)
+			opte1->status |= E1_LOS;
+		if (c->status & ESTS_LOF)
+			opte1->status |= E1_LOF;
+		if (c->status & ESTS_AIS)
+			opte1->status |= E1_AIS;
+		if (c->status & ESTS_LOMF)
+			opte1->status |= E1_LOMF;
+		if (c->status & ESTS_AIS16)
+			opte1->status |= E1_AIS16;
+		if (c->status & ESTS_FARLOF)
+			opte1->status |= E1_FARLOF;
+		if (c->status & ESTS_FARLOMF)
+			opte1->status |= E1_FARLOMF;
+		if (c->status & ESTS_TSTREQ)
+			opte1->status |= E1_TSTREQ;
+		if (c->status & ESTS_TSTERR)
+			opte1->status |= E1_TSTERR;
+
+		opte1->cursec	    = c->cursec;
+		opte1->totsec	    = c->totsec + c->cursec;
+
+		opte1->currnt.bpv   = c->currnt.bpv;
+		opte1->currnt.fse   = c->currnt.fse;
+		opte1->currnt.crce  = c->currnt.crce;
+		opte1->currnt.rcrce = c->currnt.rcrce;
+		opte1->currnt.uas   = c->currnt.uas;
+		opte1->currnt.les   = c->currnt.les;
+		opte1->currnt.es    = c->currnt.es;
+		opte1->currnt.bes   = c->currnt.bes;
+		opte1->currnt.ses   = c->currnt.ses;
+		opte1->currnt.oofs  = c->currnt.oofs;
+		opte1->currnt.css   = c->currnt.css;
+		opte1->currnt.dm    = c->currnt.dm;
+
+		opte1->total.bpv    = c->total.bpv   + c->currnt.bpv;
+		opte1->total.fse    = c->total.fse   + c->currnt.fse;
+		opte1->total.crce   = c->total.crce  + c->currnt.crce;
+		opte1->total.rcrce  = c->total.rcrce + c->currnt.rcrce;
+		opte1->total.uas    = c->total.uas   + c->currnt.uas;
+		opte1->total.les    = c->total.les   + c->currnt.les;
+		opte1->total.es	    = c->total.es    + c->currnt.es;
+		opte1->total.bes    = c->total.bes   + c->currnt.bes;
+		opte1->total.ses    = c->total.ses   + c->currnt.ses;
+		opte1->total.oofs   = c->total.oofs  + c->currnt.oofs;
+		opte1->total.css    = c->total.css   + c->currnt.css;
+		opte1->total.dm	    = c->total.dm    + c->currnt.dm;
+		for (s=0; s<48; ++s) {
+			opte1->interval[s].bpv   = c->interval[s].bpv;
+			opte1->interval[s].fse   = c->interval[s].fse;
+			opte1->interval[s].crce  = c->interval[s].crce;
+			opte1->interval[s].rcrce = c->interval[s].rcrce;
+			opte1->interval[s].uas   = c->interval[s].uas;
+			opte1->interval[s].les   = c->interval[s].les;
+			opte1->interval[s].es	 = c->interval[s].es;
+			opte1->interval[s].bes   = c->interval[s].bes;
+			opte1->interval[s].ses   = c->interval[s].ses;
+			opte1->interval[s].oofs  = c->interval[s].oofs;
+			opte1->interval[s].css   = c->interval[s].css;
+			opte1->interval[s].dm	 = c->interval[s].dm;
+		}
+		return 0;
+
+	case SERIAL_CLRSTAT:
+		CE_DEBUG2 (d, ("ioctl: clrstat\n"));
+		/* Only for superuser! */
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else
+		error = suser (td);
+#endif
+		if (error)
+			return error;
+		c->rintr    = 0;
+		c->tintr    = 0;
+		c->ibytes   = 0;
+		c->obytes   = 0;
+		c->ipkts    = 0;
+		c->opkts    = 0;
+		c->overrun  = 0;
+		c->frame    = 0;
+		c->crc	    = 0;
+		c->underrun = 0;
+		bzero (&c->currnt, sizeof (c->currnt));
+		bzero (&c->total, sizeof (c->total));
+		bzero (c->interval, sizeof (c->interval));
+		return 0;
+
+	case SERIAL_GETLOOP:
+		CE_DEBUG2 (d, ("ioctl: getloop\n"));
+		if (c->type != T_E1)
+			return EINVAL;
+		*(int*)data = c->lloop;
+		return 0;
+
+	case SERIAL_SETLOOP:
+		CE_DEBUG2 (d, ("ioctl: setloop\n"));
+		if (c->type != T_E1)
+			return EINVAL;
+		/* Only for superuser! */
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else
+		error = suser (td);
+#endif
+		if (error)
+			return error;
+		s = splimp ();
+		CE_LOCK (bd);
+		ce_set_lloop (c, *(int*)data);
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+
+	case SERIAL_GETRLOOP:
+		CE_DEBUG2 (d, ("ioctl: getrloop\n"));
+		if (c->type != T_E1)
+			return EINVAL;
+		*(int*)data = c->rloop;
+		return 0;
+
+	case SERIAL_SETRLOOP:
+		CE_DEBUG2 (d, ("ioctl: setloop\n"));
+		if (c->type != T_E1)
+			return EINVAL;
+		/* Only for superuser! */
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else
+		error = suser (td);
+#endif
+		if (error)
+			return error;
+		s = splimp ();
+		CE_LOCK (bd);
+		ce_set_rloop (c, *(int*)data);
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+
+	case SERIAL_GETDEBUG:
+		CE_DEBUG2 (d, ("ioctl: getdebug\n"));
+		*(int*)data = d->chan->debug;
+		return 0;
+
+	case SERIAL_SETDEBUG:
+		CE_DEBUG2 (d, ("ioctl: setdebug\n"));
+		/* Only for superuser! */
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else
+		error = suser (td);
+#endif
+		if (error)
+			return error;
+		d->chan->debug = *(int*)data;
+#ifndef	NETGRAPH
+		if (d->chan->debug)
+			d->ifp->if_flags |= IFF_DEBUG;
+		else
+			d->ifp->if_flags &= ~IFF_DEBUG;
+#endif
+		return 0;
+
+	case SERIAL_GETBAUD:
+		CE_DEBUG2 (d, ("ioctl: getbaud\n"));
+		*(long*)data = c->baud;
+		return 0;
+
+	case SERIAL_SETBAUD:
+		CE_DEBUG2 (d, ("ioctl: setbaud\n"));
+		if (c->type != T_E1 || !c->unfram)
+			return EINVAL;
+		/* Only for superuser! */
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else
+		error = suser (td);
+#endif
+		if (error)
+			return error;
+		s = splimp ();
+		CE_LOCK (bd);
+		ce_set_baud (c, *(long*)data);
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+
+	case SERIAL_GETTIMESLOTS:
+		CE_DEBUG2 (d, ("ioctl: gettimeslots\n"));
+		if ((c->type != T_E1 || c->unfram) && c->type != T_DATA)
+			return EINVAL;
+		*(u_long*)data = c->ts;
+		return 0;
+
+	case SERIAL_SETTIMESLOTS:
+		CE_DEBUG2 (d, ("ioctl: settimeslots\n"));
+		/* Only for superuser! */
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else
+		error = suser (td);
+#endif
+		if (error)
+			return error;
+		if ((c->type != T_E1 || c->unfram) && c->type != T_DATA)
+			return EINVAL;
+		s = splimp ();
+		CE_LOCK (bd);
+		ce_set_ts (c, *(u_long*)data);
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+
+	case SERIAL_GETHIGAIN:
+		CE_DEBUG2 (d, ("ioctl: gethigain\n"));
+		if (c->type != T_E1)
+			return EINVAL;
+		*(int*)data = c->higain;
+		return 0;
+
+	case SERIAL_SETHIGAIN:
+		CE_DEBUG2 (d, ("ioctl: sethigain\n"));
+		if (c->type != T_E1)
+			return EINVAL;
+		/* Only for superuser! */
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else
+		error = suser (td);
+#endif
+		if (error)
+			return error;
+		s = splimp ();
+		CE_LOCK (bd);
+		ce_set_higain (c, *(int*)data);
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+
+	case SERIAL_GETPHONY:
+		CE_DEBUG2 (d, ("ioctl: getphony\n"));
+		*(int*)data = c->phony;
+		return 0;
+
+	case SERIAL_SETPHONY:
+		CE_DEBUG2 (d, ("ioctl: setphony\n"));
+		/* Only for superuser! */
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else
+		error = suser (td);
+#endif
+		if (error)
+			return error;
+		s = splimp ();
+		CE_LOCK (bd);
+		ce_set_phony (c, *(int*)data);
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+
+	case SERIAL_GETUNFRAM:
+		CE_DEBUG2 (d, ("ioctl: getunfram\n"));
+		if (c->type != T_E1 || c->num != 0)
+			return EINVAL;
+		*(int*)data = c->unfram;
+		return 0;
+
+	case SERIAL_SETUNFRAM:
+		CE_DEBUG2 (d, ("ioctl: setunfram\n"));
+		if (c->type != T_E1 || c->num != 0)
+			return EINVAL;
+		/* Only for superuser! */
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else
+		error = suser (td);
+#endif
+		if (error)
+			return error;
+		s = splimp ();
+		CE_LOCK (bd);
+		ce_set_unfram (c, *(int*)data);
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+
+	case SERIAL_GETSCRAMBLER:
+		CE_DEBUG2 (d, ("ioctl: getscrambler\n"));
+		if (!c->unfram)
+			return EINVAL;
+		*(int*)data = c->scrambler;
+		return 0;
+
+	case SERIAL_SETSCRAMBLER:
+		CE_DEBUG2 (d, ("ioctl: setscrambler\n"));
+		/* Only for superuser! */
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else
+		error = suser (td);
+#endif
+		if (error)
+			return error;
+		if (!c->unfram)
+			return EINVAL;
+		s = splimp ();
+		CE_LOCK (bd);
+		ce_set_scrambler (c, *(int*)data);
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+
+	case SERIAL_GETMONITOR:
+		CE_DEBUG2 (d, ("ioctl: getmonitor\n"));
+		if (c->type != T_E1)
+			return EINVAL;
+		*(int*)data = c->monitor;
+		return 0;
+
+	case SERIAL_SETMONITOR:
+		CE_DEBUG2 (d, ("ioctl: setmonitor\n"));
+		/* Only for superuser! */
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else
+		error = suser (td);
+#endif
+		if (error)
+			return error;
+		if (c->type != T_E1)
+			return EINVAL;
+		s = splimp ();
+		CE_LOCK (bd);
+		ce_set_monitor (c, *(int*)data);
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+
+	case SERIAL_GETUSE16:
+		CE_DEBUG2 (d, ("ioctl: getuse16\n"));
+		if (c->type != T_E1 || c->unfram)
+			return EINVAL;
+		*(int*)data = c->use16;
+		return 0;
+
+	case SERIAL_SETUSE16:
+		CE_DEBUG2 (d, ("ioctl: setuse16\n"));
+		/* Only for superuser! */
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else
+		error = suser (td);
+#endif
+		if (error)
+			return error;
+		if (c->type != T_E1)
+			return EINVAL;
+		s = splimp ();
+		CE_LOCK (bd);
+		ce_set_use16 (c, *(int*)data);
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+
+	case SERIAL_GETCRC4:
+		CE_DEBUG2 (d, ("ioctl: getcrc4\n"));
+		if (c->type != T_E1 || c->unfram)
+			return EINVAL;
+		*(int*)data = c->crc4;
+		return 0;
+
+	case SERIAL_SETCRC4:
+		CE_DEBUG2 (d, ("ioctl: setcrc4\n"));
+		/* Only for superuser! */
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else
+		error = suser (td);
+#endif
+		if (error)
+			return error;
+		if (c->type != T_E1 || c->unfram)
+			return EINVAL;
+		s = splimp ();
+		CE_LOCK (bd);
+		ce_set_crc4 (c, *(int*)data);
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+
+	case SERIAL_GETCLK:
+		CE_DEBUG2 (d, ("ioctl: getclk\n"));
+		if (c->type != T_E1)
+			return EINVAL;
+		switch (c->gsyn) {
+		default:	*(int*)data = E1CLK_INTERNAL;		break;
+		case GSYN_RCV:	*(int*)data = E1CLK_RECEIVE;		break;
+		case GSYN_RCV0:	*(int*)data = E1CLK_RECEIVE_CHAN0;	break;
+		case GSYN_RCV1:	*(int*)data = E1CLK_RECEIVE_CHAN1;	break;
+		}
+		return 0;
+
+	case SERIAL_SETCLK:
+		CE_DEBUG2 (d, ("ioctl: setclk\n"));
+		/* Only for superuser! */
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else
+		error = suser (td);
+#endif
+		if (error)
+			return error;
+		if (c->type != T_E1)
+			return EINVAL;
+		s = splimp ();
+		CE_LOCK (bd);
+		switch (*(int*)data) {
+		default:		  ce_set_gsyn (c, GSYN_INT);  break;
+		case E1CLK_RECEIVE:	  ce_set_gsyn (c, GSYN_RCV);  break;
+		case E1CLK_RECEIVE_CHAN0: ce_set_gsyn (c, GSYN_RCV0); break;
+		case E1CLK_RECEIVE_CHAN1: ce_set_gsyn (c, GSYN_RCV1); break;
+		}
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+
+#if 0
+	case SERIAL_RESET:
+		CE_DEBUG2 (d, ("ioctl: reset\n"));
+		/* Only for superuser! */
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else
+		error = suser (td);
+#endif
+		if (error)
+			return error;
+		s = splimp ();
+		CE_LOCK (bd);
+/*		ce_reset (c->board, 0, 0);*/
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+
+	case SERIAL_HARDRESET:
+		CE_DEBUG2 (d, ("ioctl: hardreset\n"));
+		/* Only for superuser! */
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else
+		error = suser (td);
+#endif
+		if (error)
+			return error;
+		s = splimp ();
+		CE_LOCK (bd);
+		/* hard_reset (c->board); */
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+#endif
+
+	case SERIAL_GETCABLE:
+		CE_DEBUG2 (d, ("ioctl: getcable\n"));
+		if (c->type != T_E1)
+			return EINVAL;
+		s = splimp ();
+		CE_LOCK (bd);
+		*(int*)data = CABLE_TP;
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+
+	case SERIAL_GETDIR:
+		CE_DEBUG2 (d, ("ioctl: getdir\n"));
+		if (c->type != T_E1 && c->type != T_DATA)
+			return EINVAL;
+		*(int*)data = c->dir;
+		return 0;
+
+	case SERIAL_SETDIR:
+		CE_DEBUG2 (d, ("ioctl: setdir\n"));
+		/* Only for superuser! */
+#if __FreeBSD_version < 500000
+		error = suser (p);
+#else
+		error = suser (td);
+#endif
+		if (error)
+			return error;
+		s = splimp ();
+		CE_LOCK (bd);
+		ce_set_dir (c, *(int*)data);
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+
+	case TIOCSDTR:		/* Set DTR */
+		s = splimp ();
+		CE_LOCK (bd);
+		ce_set_dtr (c, 1);
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+
+	case TIOCCDTR:		/* Clear DTR */
+		s = splimp ();
+		CE_LOCK (bd);
+		ce_set_dtr (c, 0);
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+
+	case TIOCMSET:		/* Set DTR/RTS */
+		s = splimp ();
+		CE_LOCK (bd);
+		ce_set_dtr (c, (*(int*)data & TIOCM_DTR) ? 1 : 0);
+		ce_set_rts (c, (*(int*)data & TIOCM_RTS) ? 1 : 0);
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+
+	case TIOCMBIS:		/* Add DTR/RTS */
+		s = splimp ();
+		CE_LOCK (bd);
+		if (*(int*)data & TIOCM_DTR) ce_set_dtr (c, 1);
+		if (*(int*)data & TIOCM_RTS) ce_set_rts (c, 1);
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+
+	case TIOCMBIC:		/* Clear DTR/RTS */
+		s = splimp ();
+		CE_LOCK (bd);
+		if (*(int*)data & TIOCM_DTR) ce_set_dtr (c, 0);
+		if (*(int*)data & TIOCM_RTS) ce_set_rts (c, 0);
+		CE_UNLOCK (bd);
+		splx (s);
+		return 0;
+
+	case TIOCMGET:		/* Get modem status */
+		*(int*)data = ce_modem_status (c);
+		return 0;
+	}
+	return ENOTTY;
+}
+
+#if __FreeBSD_version < 500000
+static struct cdevsw ce_cdevsw = {
+	ce_open,	ce_close,	noread,		nowrite,
+	ce_ioctl,	nopoll,		nommap,		nostrategy,
+	"ce",		CDEV_MAJOR,	nodump,		nopsize,
+	D_NAGGED,	-1
+	};
+#elif __FreeBSD_version == 500000
+static struct cdevsw ce_cdevsw = {
+	ce_open,	ce_close,	noread,		nowrite,
+	ce_ioctl,	nopoll,		nommap,		nostrategy,
+	"ce",		CDEV_MAJOR,	nodump,		nopsize,
+	D_NAGGED,
+	};
+#elif __FreeBSD_version <= 501000
+static struct cdevsw ce_cdevsw = {
+	.d_open	    = ce_open,
+	.d_close    = ce_close,
+	.d_read     = noread,
+	.d_write    = nowrite,
+	.d_ioctl    = ce_ioctl,
+	.d_poll     = nopoll,
+	.d_mmap	    = nommap,
+	.d_strategy = nostrategy,
+	.d_name     = "ce",
+	.d_maj	    = CDEV_MAJOR,
+	.d_dump     = nodump,
+	.d_flags    = D_NAGGED,
+};
+#elif __FreeBSD_version < 502103
+static struct cdevsw ce_cdevsw = {
+	.d_open     = ce_open,
+	.d_close    = ce_close,
+	.d_ioctl    = ce_ioctl,
+	.d_name     = "ce",
+	.d_maj	    = CDEV_MAJOR,
+	.d_flags    = D_NAGGED,
+};
+#elif __FreeBSD_version < 600000
+static struct cdevsw ce_cdevsw = {
+	.d_version  = D_VERSION,
+	.d_open     = ce_open,
+	.d_close    = ce_close,
+	.d_ioctl    = ce_ioctl,
+	.d_name     = "ce",
+	.d_maj	    = CDEV_MAJOR,
+	.d_flags    = D_NEEDGIANT,
+};
+#else /* __FreeBSD_version >= 600000 */
+static struct cdevsw ce_cdevsw = {
+	.d_version  = D_VERSION,
+	.d_open     = ce_open,
+	.d_close    = ce_close,
+	.d_ioctl    = ce_ioctl,
+	.d_name     = "ce",
+	.d_flags    = D_NEEDGIANT,
+};
+#endif
+
+#ifdef NETGRAPH
+#if __FreeBSD_version >= 500000
+static int ng_ce_constructor (node_p node)
+{
+	drv_t *d = NG_NODE_PRIVATE (node);
+#else
+static int ng_ce_constructor (node_p *node)
+{
+	drv_t *d = (*node)->private;
+#endif
+	CE_DEBUG (d, ("Constructor\n"));
+	return EINVAL;
+}
+
+static int ng_ce_newhook (node_p node, hook_p hook, const char *name)
+{
+	int s;
+#if __FreeBSD_version >= 500000
+	drv_t *d = NG_NODE_PRIVATE (node);
+#else
+	drv_t *d = node->private;
+#endif
+	bdrv_t *bd = d->board->sys;
+
+	CE_DEBUG (d, ("Newhook\n"));
+	/* Attach debug hook */
+	if (strcmp (name, NG_CE_HOOK_DEBUG) == 0) {
+#if __FreeBSD_version >= 500000
+		NG_HOOK_SET_PRIVATE (hook, NULL);
+#else
+		hook->private = 0;
+#endif
+		d->debug_hook = hook;
+		return 0;
+	}
+
+	/* Check for raw hook */
+	if (strcmp (name, NG_CE_HOOK_RAW) != 0)
+		return EINVAL;
+
+#if __FreeBSD_version >= 500000
+	NG_HOOK_SET_PRIVATE (hook, d);
+#else
+	hook->private = d;
+#endif
+	d->hook = hook;
+	s = splimp ();
+	CE_LOCK (bd);
+	ce_up (d);
+	CE_UNLOCK (bd);
+	splx (s);
+	return 0;
+}
+
+static char *format_timeslots (u_long s)
+{
+	static char buf [100];
+	char *p = buf;
+	int i;
+
+	for (i=1; i<32; ++i)
+		if ((s >> i) & 1) {
+			int prev = (i > 1)  & (s >> (i-1));
+			int next = (i < 31) & (s >> (i+1));
+
+			if (prev) {
+				if (next)
+					continue;
+				*p++ = '-';
+			} else if (p > buf)
+				*p++ = ',';
+
+			if (i >= 10)
+				*p++ = '0' + i / 10;
+			*p++ = '0' + i % 10;
+		}
+	*p = 0;
+	return buf;
+}
+
+static int print_modems (char *s, ce_chan_t *c, int need_header)
+{
+	int status = ce_modem_status (c);
+	int length = 0;
+
+	if (need_header)
+		length += sprintf (s + length, "  LE   DTR  DSR  RTS  CTS  CD\n");
+	length += sprintf (s + length, "%4s %4s %4s %4s %4s %4s\n",
+		status & TIOCM_LE  ? "On" : "-",
+		status & TIOCM_DTR ? "On" : "-",
+		status & TIOCM_DSR ? "On" : "-",
+		status & TIOCM_RTS ? "On" : "-",
+		status & TIOCM_CTS ? "On" : "-",
+		status & TIOCM_CD  ? "On" : "-");
+	return length;
+}
+
+static int print_stats (char *s, ce_chan_t *c, int need_header)
+{
+	int length = 0;
+
+	if (need_header)
+		length += sprintf (s + length, "  Rintr   Tintr   Mintr   Ibytes   Ipkts   Ierrs   Obytes   Opkts   Oerrs\n");
+	length += sprintf (s + length, "%7ld %7ld %7ld %8lu %7ld %7ld %8lu %7ld %7ld\n",
+		c->rintr, c->tintr, 0l, (unsigned long) c->ibytes,
+		c->ipkts, c->overrun + c->frame + c->crc,
+		(unsigned long) c->obytes, c->opkts, c->underrun);
+	return length;
+}
+
+static char *format_e1_status (u_char status)
+{
+	static char buf [80];
+
+	if (status & E1_NOALARM)
+		return "Ok";
+	buf[0] = 0;
+	if (status & E1_LOS)     strcat (buf, ",LOS");
+	if (status & E1_AIS)     strcat (buf, ",AIS");
+	if (status & E1_LOF)     strcat (buf, ",LOF");
+	if (status & E1_LOMF)    strcat (buf, ",LOMF");
+	if (status & E1_FARLOF)  strcat (buf, ",FARLOF");
+	if (status & E1_AIS16)   strcat (buf, ",AIS16");
+	if (status & E1_FARLOMF) strcat (buf, ",FARLOMF");
+	if (status & E1_TSTREQ)  strcat (buf, ",TSTREQ");
+	if (status & E1_TSTERR)  strcat (buf, ",TSTERR");
+	if (buf[0] == ',')
+		return buf+1;
+	return "Unknown";
+}
+
+static int print_frac (char *s, int leftalign, u_long numerator, u_long divider)
+{
+	int n, length = 0;
+
+	if (numerator < 1 || divider < 1) {
+		length += sprintf (s+length, leftalign ? "/-   " : "    -");
+		return length;
+	}
+	n = (int) (0.5 + 1000.0 * numerator / divider);
+	if (n < 1000) {
+		length += sprintf (s+length, leftalign ? "/.%-3d" : " .%03d", n);
+		return length;
+	}
+	*(s + length) = leftalign ? '/' : ' ';
+	length ++;
+
+	if	(n >= 1000000) n = (n+500) / 1000 * 1000;
+	else if (n >= 100000)  n = (n+50)  / 100 * 100;
+	else if (n >= 10000)   n = (n+5)   / 10 * 10;
+
+	switch (n) {
+	case 1000:    length += printf (s+length, ".999"); return length;
+	case 10000:   n = 9990;   break;
+	case 100000:  n = 99900;  break;
+	case 1000000: n = 999000; break;
+	}
+	if (n < 10000)	      length += sprintf (s+length, "%d.%d", n/1000, n/10%100);
+	else if (n < 100000)  length += sprintf (s+length, "%d.%d", n/1000, n/100%10);
+	else if (n < 1000000) length += sprintf (s+length, "%d.", n/1000);
+	else		      length += sprintf (s+length, "%d", n/1000);
+
+	return length;
+}
+
+static int print_e1_stats (char *s, ce_chan_t *c)
+{
+	struct e1_counters total;
+	u_long totsec;
+	int length = 0;
+
+	totsec		= c->totsec + c->cursec;
+	total.bpv	= c->total.bpv   + c->currnt.bpv;
+	total.fse	= c->total.fse   + c->currnt.fse;
+	total.crce	= c->total.crce  + c->currnt.crce;
+	total.rcrce	= c->total.rcrce + c->currnt.rcrce;
+	total.uas	= c->total.uas   + c->currnt.uas;
+	total.les	= c->total.les   + c->currnt.les;
+	total.es	= c->total.es    + c->currnt.es;
+	total.bes	= c->total.bes   + c->currnt.bes;
+	total.ses	= c->total.ses   + c->currnt.ses;
+	total.oofs	= c->total.oofs  + c->currnt.oofs;
+	total.css	= c->total.css   + c->currnt.css;
+	total.dm	= c->total.dm    + c->currnt.dm;
+
+	length += sprintf (s + length, " Unav/Degr  Bpv/Fsyn  CRC/RCRC  Err/Lerr  Sev/Bur   Oof/Slp  Status\n");
+
+	/* Unavailable seconds, degraded minutes */
+	length += print_frac (s + length, 0, c->currnt.uas, c->cursec);
+	length += print_frac (s + length, 1, 60 * c->currnt.dm, c->cursec);
+
+	/* Bipolar violations, frame sync errors */
+	length += print_frac (s + length, 0, c->currnt.bpv, c->cursec);
+	length += print_frac (s + length, 1, c->currnt.fse, c->cursec);
+
+	/* CRC errors, remote CRC errors (E-bit) */
+	length += print_frac (s + length, 0, c->currnt.crce, c->cursec);
+	length += print_frac (s + length, 1, c->currnt.rcrce, c->cursec);
+
+	/* Errored seconds, line errored seconds */
+	length += print_frac (s + length, 0, c->currnt.es, c->cursec);
+	length += print_frac (s + length, 1, c->currnt.les, c->cursec);
+
+	/* Severely errored seconds, burst errored seconds */
+	length += print_frac (s + length, 0, c->currnt.ses, c->cursec);
+	length += print_frac (s + length, 1, c->currnt.bes, c->cursec);
+
+	/* Out of frame seconds, controlled slip seconds */
+	length += print_frac (s + length, 0, c->currnt.oofs, c->cursec);
+	length += print_frac (s + length, 1, c->currnt.css, c->cursec);
+
+	length += sprintf (s + length, " %s\n", format_e1_status (c->status));
+
+	/* Print total statistics. */
+	length += print_frac (s + length, 0, total.uas, totsec);
+	length += print_frac (s + length, 1, 60 * total.dm, totsec);
+
+	length += print_frac (s + length, 0, total.bpv, totsec);
+	length += print_frac (s + length, 1, total.fse, totsec);
+
+	length += print_frac (s + length, 0, total.crce, totsec);
+	length += print_frac (s + length, 1, total.rcrce, totsec);
+
+	length += print_frac (s + length, 0, total.es, totsec);
+	length += print_frac (s + length, 1, total.les, totsec);
+
+	length += print_frac (s + length, 0, total.ses, totsec);
+	length += print_frac (s + length, 1, total.bes, totsec);
+
+	length += print_frac (s + length, 0, total.oofs, totsec);
+	length += print_frac (s + length, 1, total.css, totsec);
+
+	length += sprintf (s + length, " -- Total\n");
+	return length;
+}
+
+static int print_chan (char *s, ce_chan_t *c)
+{
+	drv_t *d = c->sys;
+	int length = 0;
+
+	length += sprintf (s + length, "ce%d", c->board->num * NCHAN + c->num);
+	if (d->chan->debug)
+		length += sprintf (s + length, " debug=%d", d->chan->debug);
+
+	if (c->board->mux) {
+		length += sprintf (s + length, " cfg=C");
+	} else {
+		length += sprintf (s + length, " cfg=A");
+	}
+
+	if (c->baud)
+		length += sprintf (s + length, " %ld", c->baud);
+	else
+		length += sprintf (s + length, " extclock");
+
+	if (c->type == T_E1)
+		switch (c->gsyn) {
+		case GSYN_INT   : length += sprintf (s + length, " syn=int");     break;
+		case GSYN_RCV   : length += sprintf (s + length, " syn=rcv");     break;
+		case GSYN_RCV0  : length += sprintf (s + length, " syn=rcv0");    break;
+		case GSYN_RCV1  : length += sprintf (s + length, " syn=rcv1");    break;
+		}
+	if (c->type == T_E1)
+		length += sprintf (s + length, " higain=%s", c->higain ? "on" : "off");
+
+	length += sprintf (s + length, " loop=%s", c->lloop ? "on" : "off");
+
+	if (c->type == T_E1)
+		length += sprintf (s + length, " ts=%s", format_timeslots (c->ts));
+	length += sprintf (s + length, "\n");
+	return length;
+}
+
+#if __FreeBSD_version >= 500000
+static int ng_ce_rcvmsg (node_p node, item_p item, hook_p lasthook)
+{
+	drv_t *d = NG_NODE_PRIVATE (node);
+	struct ng_mesg *msg;
+#else
+static int ng_ce_rcvmsg (node_p node, struct ng_mesg *msg,
+	const char *retaddr, struct ng_mesg **rptr)
+{
+	drv_t *d = node->private;
+#endif
+	struct ng_mesg *resp = NULL;
+	int error = 0;
+
+	CE_DEBUG (d, ("Rcvmsg\n"));
+#if __FreeBSD_version >= 500000
+	NGI_GET_MSG (item, msg);
+#endif
+	switch (msg->header.typecookie) {
+	default:
+		error = EINVAL;
+		break;
+
+	case NGM_CE_COOKIE:
+		printf ("Not implemented yet\n");
+		error = EINVAL;
+		break;
+
+	case NGM_GENERIC_COOKIE:
+		switch (msg->header.cmd) {
+		default:
+			error = EINVAL;
+			break;
+
+		case NGM_TEXT_STATUS: {
+			char *s;
+			int l = 0;
+			int dl = sizeof (struct ng_mesg) + 730;
+
+#if __FreeBSD_version >= 500000	
+			NG_MKRESPONSE (resp, msg, dl, M_NOWAIT);
+			if (! resp) {
+				error = ENOMEM;
+				break;
+			}
+#else
+			MALLOC (resp, struct ng_mesg *, dl,
+				M_NETGRAPH, M_NOWAIT);
+			if (! resp) {
+				error = ENOMEM;
+				break;
+			}
+			bzero (resp, dl);
+#endif
+			s = (resp)->data;
+			if (d) {
+			l += print_chan (s + l, d->chan);
+			l += print_stats (s + l, d->chan, 1);
+			l += print_modems (s + l, d->chan, 1);
+			l += print_e1_stats (s + l, d->chan);
+			} else
+				l += sprintf (s + l, "Error: node not connect to channel");
+#if __FreeBSD_version < 500000
+			(resp)->header.version = NG_VERSION;
+			(resp)->header.arglen = strlen (s) + 1;
+			(resp)->header.token = msg->header.token;
+			(resp)->header.typecookie = NGM_CE_COOKIE;
+			(resp)->header.cmd = msg->header.cmd;
+#endif
+			strncpy ((resp)->header.cmdstr, "status", NG_CMDSTRLEN);
+			}
+			break;
+		}
+		break;
+	}
+#if __FreeBSD_version >= 500000
+	NG_RESPOND_MSG (error, node, item, resp);
+	NG_FREE_MSG (msg);
+#else
+	*rptr = resp;
+	FREE (msg, M_NETGRAPH);
+#endif
+	return error;
+}
+
+#if __FreeBSD_version >= 500000
+static int ng_ce_rcvdata (hook_p hook, item_p item)
+{
+	drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE(hook));
+	struct mbuf *m;
+#if __FreeBSD_version < 502120
+	meta_p meta;
+#else
+	struct ng_tag_prio *ptag;
+#endif
+#else
+static int ng_ce_rcvdata (hook_p hook, struct mbuf *m, meta_p meta)
+{
+	drv_t *d = hook->node->private;
+#endif
+	bdrv_t *bd = d->board->sys;
+	struct ifqueue *q;
+	int s;
+
+	CE_DEBUG2 (d, ("Rcvdata\n"));
+#if __FreeBSD_version >= 500000
+	NGI_GET_M (item, m);
+#if __FreeBSD_version < 502120
+	NGI_GET_META (item, meta);
+#endif
+	NG_FREE_ITEM (item);
+	if (! NG_HOOK_PRIVATE (hook) || ! d) {
+		NG_FREE_M (m);
+#if __FreeBSD_version < 502120
+		NG_FREE_META (meta);
+#endif
+#else
+	if (! hook->private || ! d) {
+		NG_FREE_DATA (m,meta);
+#endif
+		return ENETDOWN;
+	}
+
+#if __FreeBSD_version >= 502120
+	/* Check for high priority data */
+	if ((ptag = (struct ng_tag_prio *)m_tag_locate(m, NGM_GENERIC_COOKIE,
+	    NG_TAG_PRIO, NULL)) != NULL && (ptag->priority > NG_PRIO_CUTOFF) )
+		q = &d->hi_queue;
+	else
+		q = &d->queue;
+#else
+	q = (meta && meta->priority > 0) ? &d->hi_queue : &d->queue;
+#endif
+
+	s = splimp ();
+	CE_LOCK (bd);
+#if __FreeBSD_version >= 500000
+	IF_LOCK (q);
+	if (_IF_QFULL (q)) {
+		_IF_DROP (q);
+		IF_UNLOCK (q);
+		CE_UNLOCK (bd);
+		splx (s);
+		NG_FREE_M (m);
+#if __FreeBSD_version < 502120
+		NG_FREE_META (meta);
+#endif
+		return ENOBUFS;
+	}
+	_IF_ENQUEUE (q, m);
+	IF_UNLOCK (q);
+#else
+	if (IF_QFULL (q)) {
+		IF_DROP (q);
+		CE_UNLOCK (bd);
+		splx (s);
+		NG_FREE_DATA (m, meta);
+		return ENOBUFS;
+	}
+	IF_ENQUEUE (q, m);
+#endif
+	ce_start (d);
+	CE_UNLOCK (bd);
+	splx (s);
+	return 0;
+}
+
+static int ng_ce_rmnode (node_p node)
+{
+#if __FreeBSD_version >= 500000
+	drv_t *d = NG_NODE_PRIVATE (node);
+
+	CE_DEBUG (d, ("Rmnode\n"));
+	if (d && d->running) {
+		bdrv_t *bd = d->board->sys;
+		int s = splimp ();
+		CE_LOCK (bd);
+		ce_down (d);
+		CE_UNLOCK (bd);
+		splx (s);
+	}
+#ifdef	KLD_MODULE
+#if __FreeBSD_version >= 502120
+	if (node->nd_flags & NGF_REALLY_DIE) {
+#else
+	if (node->nd_flags & NG_REALLY_DIE) {
+#endif
+		NG_NODE_SET_PRIVATE (node, NULL);
+		NG_NODE_UNREF (node);
+	}
+#if __FreeBSD_version >= 502120
+	NG_NODE_REVIVE(node);		/* Persistant node */
+#else
+	node->nd_flags &= ~NG_INVALID;
+#endif
+#endif
+#else /* __FreeBSD_version < 500000 */
+	drv_t *d = node->private;
+
+	if (d && d->running) {
+		bdrv_t *bd = d->board->sys;
+		int s = splimp ();
+		CE_LOCK (bd);
+		ce_down (d);
+		CE_UNLOCK (bd);
+		splx (s);
+	}
+
+	node->flags |= NG_INVALID;
+	ng_cutlinks (node);
+#ifdef	KLD_MODULE
+	ng_unname (node);
+	ng_unref (node);
+#endif
+#endif
+	return 0;
+}
+
+static void ng_ce_watchdog (void *arg)
+{
+	drv_t *d = arg;
+
+	if (d) {
+		if (d->timeout == 1)
+			ce_watchdog (d);
+		if (d->timeout)
+			d->timeout--;
+		callout_reset (&d->timeout_handle, hz, ng_ce_watchdog, d);
+	}
+}
+
+static int ng_ce_connect (hook_p hook)
+{
+#if __FreeBSD_version >= 500000
+	drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
+#else
+	drv_t *d = hook->node->private;
+#endif
+
+	if (d) {
+		CE_DEBUG (d, ("Connect\n"));
+		callout_reset (&d->timeout_handle, hz, ng_ce_watchdog, d);
+	}
+	
+	return 0;
+}
+
+static int ng_ce_disconnect (hook_p hook)
+{
+#if __FreeBSD_version >= 500000
+	drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
+#else
+	drv_t *d = hook->node->private;
+#endif
+
+	if (d) {
+		CE_DEBUG (d, ("Disconnect\n"));
+#if __FreeBSD_version >= 500000
+		if (NG_HOOK_PRIVATE (hook))
+#else
+		if (hook->private)
+#endif
+		{
+			bdrv_t *bd = d->board->sys;
+			int s = splimp ();
+			CE_LOCK (bd);
+			ce_down (d);
+			CE_UNLOCK (bd);
+			splx (s);
+		}
+		/* If we were wait it than it reasserted now, just stop it. */
+		if (!callout_drain (&d->timeout_handle))
+			callout_stop (&d->timeout_handle);
+	}
+	return 0;
+}
+#endif
+
+static int ce_modevent (module_t mod, int type, void *unused)
+{
+#if __FreeBSD_version < 500000
+	dev_t dev;
+	struct cdevsw *cdsw;
+#endif
+	static int load_count = 0;
+
+#if __FreeBSD_version < 500000
+	dev = makedev (CDEV_MAJOR, 0);
+#endif
+#if __FreeBSD_version >= 501114
+	if (!debug_mpsafenet && ce_mpsafenet) {
+		printf ("WORNING! Network stack is not MPSAFE. "
+			"Turning off debug.ce.mpsafenet.\n");
+		ce_mpsafenet = 0;
+	}
+#endif
+#if __FreeBSD_version >= 502103
+	if (ce_mpsafenet)
+		ce_cdevsw.d_flags &= ~D_NEEDGIANT;
+#endif
+
+	switch (type) {
+	case MOD_LOAD:
+#if __FreeBSD_version < 500000
+		if (dev != NODEV &&
+		    (cdsw = devsw (dev)) &&
+		    cdsw->d_maj == CDEV_MAJOR) {
+			printf ("Tau32-PCI driver is already in system\n");
+			return (ENXIO);
+		}
+#endif
+#if __FreeBSD_version >= 500000 && defined NETGRAPH
+		if (ng_newtype (&typestruct))
+			printf ("Failed to register ng_ce\n");
+#endif
+		++load_count;
+#if __FreeBSD_version <= 500000
+		cdevsw_add (&ce_cdevsw);
+#endif
+#if __FreeBSD_version >= 500000
+		callout_init (&timeout_handle, ce_mpsafenet?CALLOUT_MPSAFE:0);
+#else
+		callout_init (&timeout_handle);
+#endif
+		callout_reset (&timeout_handle, hz*5, ce_timeout, 0);
+		break;
+	case MOD_UNLOAD:
+		if (load_count == 1) {
+			printf ("Removing device entry for Tau32-PCI\n");
+#if __FreeBSD_version <= 500000
+			cdevsw_remove (&ce_cdevsw);
+#endif
+#if __FreeBSD_version >= 500000 && defined NETGRAPH
+			ng_rmtype (&typestruct);
+#endif			
+		}
+		/* If we were wait it than it reasserted now, just stop it.
+		 * Actually we shouldn't get this condition. But code could be
+		 * changed in the future, so just be a litle paranoid.
+		 */
+		if (!callout_drain (&timeout_handle))
+			callout_stop (&timeout_handle);
+		--load_count;
+		break;
+	case MOD_SHUTDOWN:
+		break;
+	}
+	return 0;
+}
+
+#ifdef NETGRAPH
+#if __FreeBSD_version >= 502100
+static struct ng_type typestruct = {
+	.version	= NG_ABI_VERSION,
+	.name		= NG_CE_NODE_TYPE,
+	.constructor	= ng_ce_constructor,
+	.rcvmsg		= ng_ce_rcvmsg,
+	.shutdown	= ng_ce_rmnode,
+	.newhook	= ng_ce_newhook,
+	.connect	= ng_ce_connect,
+	.rcvdata	= ng_ce_rcvdata,
+	.disconnect	= ng_ce_disconnect,
+};
+#else /* __FreeBSD_version < 502100 */
+static struct ng_type typestruct = {
+#if __FreeBSD_version >= 500000
+	NG_ABI_VERSION,
+#else
+	NG_VERSION,
+#endif
+	NG_CE_NODE_TYPE,
+	ce_modevent,
+	ng_ce_constructor,
+	ng_ce_rcvmsg,
+	ng_ce_rmnode,
+	ng_ce_newhook,
+	NULL,
+	ng_ce_connect,
+	ng_ce_rcvdata,
+#if __FreeBSD_version < 500000
+	NULL,
+#endif
+	ng_ce_disconnect,
+	NULL
+};
+#endif /* __FreeBSD_version < 502100 */
+
+#endif /*NETGRAPH*/
+
+#if __FreeBSD_version >= 500000
+#ifdef NETGRAPH
+MODULE_DEPEND (ng_ce, netgraph, NG_ABI_VERSION, NG_ABI_VERSION, NG_ABI_VERSION);
+#else
+MODULE_DEPEND (ce, sppp, 1, 1, 1);
+#endif
+#ifdef KLD_MODULE
+DRIVER_MODULE (cemod, pci, ce_driver, ce_devclass, ce_modevent, NULL);
+#else
+DRIVER_MODULE (ce, pci, ce_driver, ce_devclass, ce_modevent, NULL);
+#endif
+#else /* if __FreeBSD_version < 500000*/
+#ifdef NETGRAPH
+DRIVER_MODULE (ce, pci, ce_driver, ce_devclass, ng_mod_event, &typestruct);
+#else
+DRIVER_MODULE (ce, pci, ce_driver, ce_devclass, ce_modevent, NULL);
+#endif
+#endif /* __FreeBSD_version < 500000 */
+#endif /* NPCI */