xref: /freebsd-12.1/sys/dev/ce/if_ce.c (revision 4d24901a)
1 /*
2  * Cronyx-Tau32-PCI adapter driver for FreeBSD.
3  *
4  * Copyright (C) 2003-2005 Cronyx Engineering.
5  * Copyright (C) 2003-2005 Kurakin Roman, <[email protected]>
6  *
7  * This software is distributed with NO WARRANTIES, not even the implied
8  * warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
9  *
10  * Authors grant any other persons or organisations a permission to use,
11  * modify and redistribute this software in source and binary forms,
12  * as long as this message is kept with the software, all derivative
13  * works or modified versions.
14  *
15  * $Cronyx: if_ce.c,v 1.9.2.8 2005/11/21 14:17:44 rik Exp $
16  */
17 
18 #include <sys/cdefs.h>
19 __FBSDID("$FreeBSD$");
20 
21 #include <sys/param.h>
22 
23 #if __FreeBSD_version >= 500000
24 #   define NPCI 1
25 #else
26 #   include "pci.h"
27 #endif
28 
29 #if NPCI > 0
30 
31 #include <sys/ucred.h>
32 #include <sys/priv.h>
33 #include <sys/proc.h>
34 #include <sys/systm.h>
35 #include <sys/mbuf.h>
36 #include <sys/kernel.h>
37 #include <sys/module.h>
38 #include <sys/conf.h>
39 #include <sys/malloc.h>
40 #include <sys/socket.h>
41 #include <sys/sockio.h>
42 #if __FreeBSD_version >= 504000
43 #include <sys/sysctl.h>
44 #endif
45 #include <sys/tty.h>
46 #include <sys/bus.h>
47 #include <vm/vm.h>
48 #include <vm/pmap.h>
49 #include <net/if.h>
50 #include <net/if_var.h>
51 #if __FreeBSD_version > 501000
52 #   include <dev/pci/pcivar.h>
53 #   include <dev/pci/pcireg.h>
54 #else
55 #   include <pci/pcivar.h>
56 #   include <pci/pcireg.h>
57 #endif
58 #include <machine/bus.h>
59 #include <sys/rman.h>
60 #include "opt_ng_cronyx.h"
61 #ifdef NETGRAPH_CRONYX
62 #   include "opt_netgraph.h"
63 #   ifndef NETGRAPH
64 #	error #option	NETGRAPH missed from configuration
65 #   endif
66 #   include <netgraph/ng_message.h>
67 #   include <netgraph/netgraph.h>
68 #   include <dev/ce/ng_ce.h>
69 #else
70 #   include <net/if_types.h>
71 #   include <net/if_sppp.h>
72 #   define PP_CISCO IFF_LINK2
73 #   include <net/bpf.h>
74 #endif
75 #include <dev/cx/machdep.h>
76 #include <dev/ce/ceddk.h>
77 #include <machine/cserial.h>
78 #include <machine/resource.h>
79 
80 /* If we don't have Cronyx's sppp version, we don't have fr support via sppp */
81 #ifndef PP_FR
82 #define PP_FR 0
83 #endif
84 
85 #ifndef IFP2SP
86 #define IFP2SP(ifp)	((struct sppp*)ifp)
87 #endif
88 #ifndef SP2IFP
89 #define SP2IFP(sp)	((struct ifnet*)sp)
90 #endif
91 
92 #ifndef PCIR_BAR
93 #define PCIR_BAR(x)	(PCIR_MAPS + (x) * 4)
94 #endif
95 
96 /* define as our previous return value */
97 #ifndef BUS_PROBE_DEFAULT
98 #define BUS_PROBE_DEFAULT 0
99 #endif
100 
101 #define CE_DEBUG(d,s)	({if (d->chan->debug) {\
102 				printf ("%s: ", d->name); printf s;}})
103 #define CE_DEBUG2(d,s)	({if (d->chan->debug>1) {\
104 				printf ("%s: ", d->name); printf s;}})
105 
106 #ifndef IF_DRAIN
107 #define IF_DRAIN(ifq) do {		\
108 	struct mbuf *m;			\
109 	for (;;) {			\
110 		IF_DEQUEUE(ifq, m);	\
111 		if (m == NULL)		\
112 			break;		\
113 		m_freem(m);		\
114 	}				\
115 } while (0)
116 #endif
117 
118 #ifndef _IF_QLEN
119 #define _IF_QLEN(ifq)	((ifq)->ifq_len)
120 #endif
121 
122 #ifndef callout_drain
123 #define callout_drain callout_stop
124 #endif
125 
126 #define CE_LOCK_NAME		"ceX"
127 
128 #define CE_LOCK(_bd)		mtx_lock (&(_bd)->ce_mtx)
129 #define CE_UNLOCK(_bd)		mtx_unlock (&(_bd)->ce_mtx)
130 #define CE_LOCK_ASSERT(_bd)	mtx_assert (&(_bd)->ce_mtx, MA_OWNED)
131 
132 #define CDEV_MAJOR	185
133 
134 static	int ce_probe		__P((device_t));
135 static	int ce_attach		__P((device_t));
136 static	int ce_detach		__P((device_t));
137 
138 static	device_method_t ce_methods[] = {
139 	/* Device interface */
140 	DEVMETHOD(device_probe,		ce_probe),
141 	DEVMETHOD(device_attach,	ce_attach),
142 	DEVMETHOD(device_detach,	ce_detach),
143 
144 	DEVMETHOD_END
145 };
146 
147 typedef struct _ce_dma_mem_t {
148 	unsigned long	phys;
149 	void		*virt;
150 	size_t		size;
151 #if __FreeBSD_version >= 500000
152 	bus_dma_tag_t	dmat;
153 	bus_dmamap_t	mapp;
154 #endif
155 } ce_dma_mem_t;
156 
157 typedef struct _drv_t {
158 	char	name [8];
159 	int	running;
160 	ce_board_t	*board;
161 	ce_chan_t	*chan;
162 	struct ifqueue	rqueue;
163 #ifdef NETGRAPH
164 	char	nodename [NG_NODESIZE];
165 	hook_p	hook;
166 	hook_p	debug_hook;
167 	node_p	node;
168 	struct	ifqueue queue;
169 	struct	ifqueue hi_queue;
170 #else
171 	struct	ifnet *ifp;
172 #endif
173 	short	timeout;
174 	struct	callout timeout_handle;
175 #if __FreeBSD_version >= 500000
176 	struct	cdev *devt;
177 #else /* __FreeBSD_version < 500000 */
178 	dev_t	devt;
179 #endif
180 	ce_dma_mem_t dmamem;
181 } drv_t;
182 
183 typedef	struct _bdrv_t {
184 	ce_board_t	*board;
185 	struct resource *ce_res;
186 	struct resource *ce_irq;
187 	void		*ce_intrhand;
188 	ce_dma_mem_t	dmamem;
189 	drv_t		channel [NCHAN];
190 #if __FreeBSD_version >= 504000
191 	struct mtx	ce_mtx;
192 #endif
193 } bdrv_t;
194 
195 static	driver_t ce_driver = {
196 	"ce",
197 	ce_methods,
198 	sizeof(bdrv_t),
199 };
200 
201 static	devclass_t ce_devclass;
202 
203 static void ce_receive (ce_chan_t *c, unsigned char *data, int len);
204 static void ce_transmit (ce_chan_t *c, void *attachment, int len);
205 static void ce_error (ce_chan_t *c, int data);
206 static void ce_up (drv_t *d);
207 static void ce_start (drv_t *d);
208 static void ce_down (drv_t *d);
209 static void ce_watchdog (drv_t *d);
210 static void ce_watchdog_timer (void *arg);
211 #ifdef NETGRAPH
212 extern struct ng_type typestruct;
213 #else
214 static void ce_ifstart (struct ifnet *ifp);
215 static void ce_tlf (struct sppp *sp);
216 static void ce_tls (struct sppp *sp);
217 static int ce_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data);
218 static void ce_initialize (void *softc);
219 #endif
220 
221 static ce_board_t *adapter [NBRD];
222 static drv_t *channel [NBRD*NCHAN];
223 static struct callout led_timo [NBRD];
224 static struct callout timeout_handle;
225 
226 static int ce_destroy = 0;
227 
228 #if __FreeBSD_version < 500000
229 static int ce_open (dev_t dev, int oflags, int devtype, struct proc *p);
230 static int ce_close (dev_t dev, int fflag, int devtype, struct proc *p);
231 static int ce_ioctl (dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p);
232 #else
233 static int ce_open (struct cdev *dev, int oflags, int devtype, struct thread *td);
234 static int ce_close (struct cdev *dev, int fflag, int devtype, struct thread *td);
235 static int ce_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td);
236 #endif
237 #if __FreeBSD_version < 500000
238 static struct cdevsw ce_cdevsw = {
239 	ce_open,	ce_close,	noread,		nowrite,
240 	ce_ioctl,	nopoll,		nommap,		nostrategy,
241 	"ce",		CDEV_MAJOR,	nodump,		nopsize,
242 	D_NAGGED,	-1
243 	};
244 #elif __FreeBSD_version == 500000
245 static struct cdevsw ce_cdevsw = {
246 	ce_open,	ce_close,	noread,		nowrite,
247 	ce_ioctl,	nopoll,		nommap,		nostrategy,
248 	"ce",		CDEV_MAJOR,	nodump,		nopsize,
249 	D_NAGGED,
250 	};
251 #elif __FreeBSD_version <= 501000
252 static struct cdevsw ce_cdevsw = {
253 	.d_open	    = ce_open,
254 	.d_close    = ce_close,
255 	.d_read     = noread,
256 	.d_write    = nowrite,
257 	.d_ioctl    = ce_ioctl,
258 	.d_poll     = nopoll,
259 	.d_mmap	    = nommap,
260 	.d_strategy = nostrategy,
261 	.d_name     = "ce",
262 	.d_maj	    = CDEV_MAJOR,
263 	.d_dump     = nodump,
264 	.d_flags    = D_NAGGED,
265 };
266 #elif __FreeBSD_version < 502103
267 static struct cdevsw ce_cdevsw = {
268 	.d_open     = ce_open,
269 	.d_close    = ce_close,
270 	.d_ioctl    = ce_ioctl,
271 	.d_name     = "ce",
272 	.d_maj	    = CDEV_MAJOR,
273 	.d_flags    = D_NAGGED,
274 };
275 #elif __FreeBSD_version < 600000
276 static struct cdevsw ce_cdevsw = {
277 	.d_version  = D_VERSION,
278 	.d_open     = ce_open,
279 	.d_close    = ce_close,
280 	.d_ioctl    = ce_ioctl,
281 	.d_name     = "ce",
282 	.d_maj	    = CDEV_MAJOR,
283 	.d_flags    = D_NEEDGIANT,
284 };
285 #else /* __FreeBSD_version >= 600000 */
286 static struct cdevsw ce_cdevsw = {
287 	.d_version  = D_VERSION,
288 	.d_open     = ce_open,
289 	.d_close    = ce_close,
290 	.d_ioctl    = ce_ioctl,
291 	.d_name     = "ce",
292 };
293 #endif
294 
295 /*
296  * Make an mbuf from data.
297  */
makembuf(void * buf,unsigned len)298 static struct mbuf *makembuf (void *buf, unsigned len)
299 {
300 	struct mbuf *m;
301 
302 	MGETHDR (m, M_NOWAIT, MT_DATA);
303 	if (! m)
304 		return 0;
305 	if (!(MCLGET(m, M_NOWAIT))) {
306 		m_freem (m);
307 		return 0;
308 	}
309 	m->m_pkthdr.len = m->m_len = len;
310 	bcopy (buf, mtod (m, caddr_t), len);
311 	return m;
312 }
313 
ce_probe(device_t dev)314 static int ce_probe (device_t dev)
315 {
316 	if ((pci_get_vendor (dev) == TAU32_PCI_VENDOR_ID) &&
317 	    (pci_get_device (dev) == TAU32_PCI_DEVICE_ID)) {
318 		device_set_desc (dev, "Cronyx-Tau32-PCI serial adapter");
319 		return BUS_PROBE_DEFAULT;
320 	}
321 	return ENXIO;
322 }
323 
ce_timeout(void * arg)324 static void ce_timeout (void *arg)
325 {
326 	drv_t *d;
327 	int s, i, k;
328 
329 	for (i = 0; i < NBRD; ++i) {
330 		if (adapter[i] == NULL)
331 			continue;
332 		for (k = 0; k < NCHAN; ++k) {
333 			s = splimp ();
334 			if (ce_destroy) {
335 				splx (s);
336 				return;
337 			}
338 			d = channel[i * NCHAN + k];
339 			if (!d) {
340 				splx (s);
341 				continue;
342 			}
343 			CE_LOCK ((bdrv_t *)d->board->sys);
344 			switch (d->chan->type) {
345 			case T_E1:
346 				ce_e1_timer (d->chan);
347 				break;
348 			default:
349 				break;
350 			}
351 			CE_UNLOCK ((bdrv_t *)d->board->sys);
352 			splx (s);
353 		}
354 	}
355 	s = splimp ();
356 	if (!ce_destroy)
357 		callout_reset (&timeout_handle, hz, ce_timeout, 0);
358 	splx (s);
359 }
360 
ce_led_off(void * arg)361 static void ce_led_off (void *arg)
362 {
363 	ce_board_t *b = arg;
364 	bdrv_t *bd = (bdrv_t *) b->sys;
365 	int s;
366 	s = splimp ();
367 	if (ce_destroy) {
368 		splx (s);
369 		return;
370 	}
371 	CE_LOCK (bd);
372 	TAU32_LedSet (b->ddk.pControllerObject, 0);
373 	CE_UNLOCK (bd);
374 	splx (s);
375 }
376 
ce_intr(void * arg)377 static void ce_intr (void *arg)
378 {
379 	bdrv_t *bd = arg;
380 	ce_board_t *b = bd->board;
381 	int s;
382 	int i;
383 #if __FreeBSD_version >= 500000 && defined NETGRAPH
384 	int error;
385 #endif
386 	s = splimp ();
387 	if (ce_destroy) {
388 		splx (s);
389 		return;
390 	}
391 	CE_LOCK (bd);
392 	/* Turn LED on. */
393 	TAU32_LedSet (b->ddk.pControllerObject, 1);
394 
395 	TAU32_HandleInterrupt (b->ddk.pControllerObject);
396 
397 	/* Turn LED off 50 msec later. */
398 	callout_reset (&led_timo[b->num], hz/20, ce_led_off, b);
399 	CE_UNLOCK (bd);
400 	splx (s);
401 
402 	/* Pass packets in a lock-free state */
403 	for (i = 0; i < NCHAN && b->chan[i].type; i++) {
404 		drv_t *d = b->chan[i].sys;
405 		struct mbuf *m;
406 		if (!d || !d->running)
407 			continue;
408 		while (_IF_QLEN(&d->rqueue)) {
409 			IF_DEQUEUE (&d->rqueue,m);
410 			if (!m)
411 				continue;
412 #ifdef NETGRAPH
413 			if (d->hook) {
414 #if __FreeBSD_version >= 500000
415 				NG_SEND_DATA_ONLY (error, d->hook, m);
416 #else
417 				ng_queue_data (d->hook, m, 0);
418 #endif
419 			} else {
420 				IF_DRAIN (&d->rqueue);
421 			}
422 #else
423 			sppp_input (d->ifp, m);
424 #endif
425 		}
426 	}
427 }
428 
429 #if __FreeBSD_version >= 500000
430 static void
ce_bus_dmamap_addr(void * arg,bus_dma_segment_t * segs,int nseg,int error)431 ce_bus_dmamap_addr (void *arg, bus_dma_segment_t *segs, int nseg, int error)
432 {
433 	unsigned long *addr;
434 
435 	if (error)
436 		return;
437 
438 	KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
439 	addr = arg;
440 	*addr = segs->ds_addr;
441 }
442 
443 #ifndef BUS_DMA_ZERO
444 #define BUS_DMA_ZERO 0
445 #endif
446 
447 static int
ce_bus_dma_mem_alloc(int bnum,int cnum,ce_dma_mem_t * dmem)448 ce_bus_dma_mem_alloc (int bnum, int cnum, ce_dma_mem_t *dmem)
449 {
450 	int error;
451 
452 	error = bus_dma_tag_create (NULL, 16, 0, BUS_SPACE_MAXADDR_32BIT,
453 		BUS_SPACE_MAXADDR, NULL, NULL, dmem->size, 1,
454 		dmem->size, 0,
455 #if __FreeBSD_version >= 502000
456 		NULL, NULL,
457 #endif
458 		&dmem->dmat);
459 	if (error) {
460 		if (cnum >= 0)	printf ("ce%d-%d: ", bnum, cnum);
461 		else		printf ("ce%d: ", bnum);
462 		printf ("couldn't allocate tag for dma memory\n");
463  		return 0;
464 	}
465 	error = bus_dmamem_alloc (dmem->dmat, (void **)&dmem->virt,
466 		BUS_DMA_NOWAIT | BUS_DMA_ZERO, &dmem->mapp);
467 	if (error) {
468 		if (cnum >= 0)	printf ("ce%d-%d: ", bnum, cnum);
469 		else		printf ("ce%d: ", bnum);
470 		printf ("couldn't allocate mem for dma memory\n");
471 		bus_dma_tag_destroy (dmem->dmat);
472  		return 0;
473 	}
474 	error = bus_dmamap_load (dmem->dmat, dmem->mapp, dmem->virt,
475 		dmem->size, ce_bus_dmamap_addr, &dmem->phys, 0);
476 	if (error) {
477 		if (cnum >= 0)	printf ("ce%d-%d: ", bnum, cnum);
478 		else		printf ("ce%d: ", bnum);
479 		printf ("couldn't load mem map for dma memory\n");
480 		bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp);
481 		bus_dma_tag_destroy (dmem->dmat);
482  		return 0;
483 	}
484 #if __FreeBSD_version >= 502000
485 	bzero (dmem->virt, dmem->size);
486 #endif
487 	return 1;
488 }
489 
490 static void
ce_bus_dma_mem_free(ce_dma_mem_t * dmem)491 ce_bus_dma_mem_free (ce_dma_mem_t *dmem)
492 {
493 	bus_dmamap_unload (dmem->dmat, dmem->mapp);
494 	bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp);
495 	bus_dma_tag_destroy (dmem->dmat);
496 }
497 #else
498 static int
ce_bus_dma_mem_alloc(int bnum,int cnum,ce_dma_mem_t * dmem)499 ce_bus_dma_mem_alloc (int bnum, int cnum, ce_dma_mem_t *dmem)
500 {
501 	dmem->virt = contigmalloc (dmem->size, M_DEVBUF, M_WAITOK,
502 				   0x100000, 0xffffffff, 16, 0);
503 	if (dmem->virt == NULL) {
504 		if (cnum >= 0)	printf ("ce%d-%d: ", bnum, cnum);
505 		else		printf ("ce%d: ", bnum);
506 		printf ("couldn't allocate dma memory\n");
507  		return 0;
508 	}
509 	dmem->phys = vtophys (dmem->virt);
510 	bzero (dmem->virt, dmem->size);
511 	return 1;
512 }
513 
514 static void
ce_bus_dma_mem_free(ce_dma_mem_t * dmem)515 ce_bus_dma_mem_free (ce_dma_mem_t *dmem)
516 {
517 	contigfree (dmem->virt, dmem->size, M_DEVBUF);
518 }
519 #endif
520 
521 /*
522  * Called if the probe succeeded.
523  */
ce_attach(device_t dev)524 static int ce_attach (device_t dev)
525 {
526 	bdrv_t *bd = device_get_softc (dev);
527 	int unit = device_get_unit (dev);
528 #if __FreeBSD_version >= 504000
529 	char *ce_ln = CE_LOCK_NAME;
530 #endif
531 	vm_offset_t vbase;
532 	int rid, error;
533 	ce_board_t *b;
534 	ce_chan_t *c;
535 	drv_t *d;
536 	int s;
537 
538 	b = malloc (sizeof(ce_board_t), M_DEVBUF, M_WAITOK);
539 	if (!b) {
540 		printf ("ce%d: couldn't allocate memory\n", unit);
541 		return (ENXIO);
542 	}
543 	bzero (b, sizeof(ce_board_t));
544 
545 	b->ddk.sys = &b;
546 
547 #if __FreeBSD_version >= 440000
548 	pci_enable_busmaster (dev);
549 #endif
550 
551 	bd->dmamem.size = TAU32_ControllerObjectSize;
552 	if (! ce_bus_dma_mem_alloc (unit, -1, &bd->dmamem)) {
553 		free (b, M_DEVBUF);
554 		return (ENXIO);
555 	}
556 	b->ddk.pControllerObject = bd->dmamem.virt;
557 
558 	bd->board = b;
559 	b->sys = bd;
560 	rid = PCIR_BAR(0);
561 	bd->ce_res = bus_alloc_resource (dev, SYS_RES_MEMORY, &rid,
562 			0, ~0, 1, RF_ACTIVE);
563 	if (! bd->ce_res) {
564 		printf ("ce%d: cannot map memory\n", unit);
565 		ce_bus_dma_mem_free (&bd->dmamem);
566 		free (b, M_DEVBUF);
567 		return (ENXIO);
568 	}
569 	vbase = (vm_offset_t) rman_get_virtual (bd->ce_res);
570 
571 	b->ddk.PciBar1VirtualAddress = (void *)vbase;
572 	b->ddk.ControllerObjectPhysicalAddress = bd->dmamem.phys;
573 	b->ddk.pErrorNotifyCallback = ce_error_callback;
574 	b->ddk.pStatusNotifyCallback = ce_status_callback;
575 	b->num = unit;
576 
577 	TAU32_BeforeReset(&b->ddk);
578 	pci_write_config (dev, TAU32_PCI_RESET_ADDRESS, TAU32_PCI_RESET_ON, 4);
579 	pci_write_config (dev, TAU32_PCI_RESET_ADDRESS, TAU32_PCI_RESET_OFF, 4);
580 
581 	if(!TAU32_Initialize(&b->ddk, 0))
582 	{
583 		printf ("ce%d: init adapter error 0x%08x, bus dead bits 0x%08lx\n",
584 			unit, b->ddk.InitErrors, b->ddk.DeadBits);
585 		bus_release_resource (dev, SYS_RES_MEMORY, PCIR_BAR(0), bd->ce_res);
586 		ce_bus_dma_mem_free (&bd->dmamem);
587 		free (b, M_DEVBUF);
588 		return (ENXIO);
589 	}
590 
591 	s = splimp ();
592 
593 	ce_init_board (b);
594 
595 	rid = 0;
596 	bd->ce_irq = bus_alloc_resource (dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
597 			RF_SHAREABLE | RF_ACTIVE);
598 	if (! bd->ce_irq) {
599 		printf ("ce%d: cannot map interrupt\n", unit);
600 		bus_release_resource (dev, SYS_RES_MEMORY, PCIR_BAR(0), bd->ce_res);
601 		ce_bus_dma_mem_free (&bd->dmamem);
602 		free (b, M_DEVBUF);
603 		splx (s);
604 		return (ENXIO);
605 	}
606 #if __FreeBSD_version >= 500000
607 	callout_init (&led_timo[unit], 1);
608 #else
609 	callout_init (&led_timo[unit]);
610 #endif
611 	error  = bus_setup_intr (dev, bd->ce_irq,
612 #if __FreeBSD_version >= 500013
613 				INTR_TYPE_NET|INTR_MPSAFE,
614 #else
615 				INTR_TYPE_NET,
616 #endif
617 				NULL, ce_intr, bd, &bd->ce_intrhand);
618 	if (error) {
619 		printf ("ce%d: cannot set up irq\n", unit);
620 		bus_release_resource (dev, SYS_RES_IRQ, 0, bd->ce_irq);
621 		bus_release_resource (dev, SYS_RES_MEMORY,
622 				PCIR_BAR(0), bd->ce_res);
623 		ce_bus_dma_mem_free (&bd->dmamem);
624 		free (b, M_DEVBUF);
625 		splx (s);
626 		return (ENXIO);
627  	}
628 
629 	switch (b->ddk.Model) {
630 	case 1:		strcpy (b->name, TAU32_BASE_NAME);	break;
631 	case 2:		strcpy (b->name, TAU32_LITE_NAME);	break;
632 	case 3:		strcpy (b->name, TAU32_ADPCM_NAME);	break;
633 	default:	strcpy (b->name, TAU32_UNKNOWN_NAME);	break;
634 	}
635 
636 	printf ("ce%d: %s\n", unit, b->name);
637 
638 	for (c = b->chan; c < b->chan + NCHAN; ++c) {
639 		c->num = (c - b->chan);
640 		c->board = b;
641 
642 		d = &bd->channel[c->num];
643 		d->dmamem.size = sizeof(ce_buf_t);
644 		if (! ce_bus_dma_mem_alloc (unit, c->num, &d->dmamem))
645 			continue;
646 
647 		channel [b->num * NCHAN + c->num] = d;
648 		sprintf (d->name, "ce%d.%d", b->num, c->num);
649 		d->board = b;
650 		d->chan = c;
651 		c->sys = d;
652 	}
653 
654 	for (c = b->chan; c < b->chan + NCHAN; ++c) {
655 		if (c->sys == NULL)
656 			continue;
657 		d = c->sys;
658 
659 		callout_init (&d->timeout_handle, 1);
660 #ifdef NETGRAPH
661 		if (ng_make_node_common (&typestruct, &d->node) != 0) {
662 			printf ("%s: cannot make common node\n", d->name);
663 			d->node = NULL;
664 			continue;
665 		}
666 #if __FreeBSD_version >= 500000
667 		NG_NODE_SET_PRIVATE (d->node, d);
668 #else
669 		d->node->private = d;
670 #endif
671 		sprintf (d->nodename, "%s%d", NG_CE_NODE_TYPE,
672 			 c->board->num * NCHAN + c->num);
673 		if (ng_name_node (d->node, d->nodename)) {
674 			printf ("%s: cannot name node\n", d->nodename);
675 #if __FreeBSD_version >= 500000
676 			NG_NODE_UNREF (d->node);
677 #else
678 			ng_rmnode (d->node);
679 			ng_unref (d->node);
680 #endif
681 			continue;
682 		}
683 		d->queue.ifq_maxlen	= ifqmaxlen;
684 		d->hi_queue.ifq_maxlen	= ifqmaxlen;
685 		d->rqueue.ifq_maxlen	= ifqmaxlen;
686 #if __FreeBSD_version >= 500000
687 		mtx_init (&d->queue.ifq_mtx, "ce_queue", NULL, MTX_DEF);
688 		mtx_init (&d->hi_queue.ifq_mtx, "ce_queue_hi", NULL, MTX_DEF);
689 		mtx_init (&d->rqueue.ifq_mtx, "ce_rqueue", NULL, MTX_DEF);
690 #endif
691 #else /*NETGRAPH*/
692 #if __FreeBSD_version >= 600031
693 		d->ifp = if_alloc(IFT_PPP);
694 #else
695 		d->ifp = malloc (sizeof(struct sppp), M_DEVBUF, M_WAITOK);
696 		bzero (d->ifp, sizeof(struct sppp));
697 #endif
698 		if (!d->ifp) {
699 			printf ("%s: cannot if_alloc() interface\n", d->name);
700 			continue;
701 		}
702 		d->ifp->if_softc	= d;
703 #if __FreeBSD_version > 501000
704 		if_initname (d->ifp, "ce", b->num * NCHAN + c->num);
705 #else
706 		d->ifp->if_unit		= b->num * NCHAN + c->num;
707 		d->ifp->if_name		= "ce";
708 #endif
709 		d->ifp->if_mtu		= PP_MTU;
710 		d->ifp->if_flags	= IFF_POINTOPOINT | IFF_MULTICAST;
711 		d->ifp->if_ioctl	= ce_sioctl;
712 		d->ifp->if_start	= ce_ifstart;
713 		d->ifp->if_init		= ce_initialize;
714 		d->rqueue.ifq_maxlen	= ifqmaxlen;
715 #if __FreeBSD_version >= 500000
716 		mtx_init (&d->rqueue.ifq_mtx, "ce_rqueue", NULL, MTX_DEF);
717 #endif
718 		sppp_attach (d->ifp);
719 		if_attach (d->ifp);
720 		IFP2SP(d->ifp)->pp_tlf	= ce_tlf;
721 		IFP2SP(d->ifp)->pp_tls	= ce_tls;
722 		/* If BPF is in the kernel, call the attach for it.
723 		 * The header size of PPP or Cisco/HDLC is 4 bytes. */
724 		bpfattach (d->ifp, DLT_PPP, 4);
725 #endif /*NETGRAPH*/
726 		ce_start_chan (c, 1, 1, d->dmamem.virt, d->dmamem.phys);
727 
728 		/* Register callback functions. */
729 		ce_register_transmit (c, &ce_transmit);
730 		ce_register_receive (c, &ce_receive);
731 		ce_register_error (c, &ce_error);
732 		d->devt = make_dev (&ce_cdevsw, b->num*NCHAN+c->num, UID_ROOT,
733 				GID_WHEEL, 0600, "ce%d", b->num*NCHAN+c->num);
734 	}
735 
736 #if __FreeBSD_version >= 504000
737 	ce_ln[2] = '0' + unit;
738 	mtx_init (&bd->ce_mtx, ce_ln, MTX_NETWORK_LOCK, MTX_DEF|MTX_RECURSE);
739 #endif
740 	CE_LOCK (bd);
741 	TAU32_EnableInterrupts(b->ddk.pControllerObject);
742 	adapter[unit] = b;
743 	CE_UNLOCK (bd);
744 	splx (s);
745 
746 	return 0;
747 }
748 
ce_detach(device_t dev)749 static int ce_detach (device_t dev)
750 {
751 	bdrv_t *bd = device_get_softc (dev);
752 	ce_board_t *b = bd->board;
753 	ce_chan_t *c;
754 	int s;
755 
756 #if __FreeBSD_version >= 504000
757 	KASSERT (mtx_initialized (&bd->ce_mtx), ("ce mutex not initialized"));
758 #endif
759 	s = splimp ();
760 	CE_LOCK (bd);
761 	/* Check if the device is busy (open). */
762 	for (c = b->chan; c < b->chan + NCHAN; ++c) {
763 		drv_t *d = (drv_t*) c->sys;
764 
765 		/* XXX Non existen chan! */
766 		if (! d || ! d->chan)
767 			continue;
768 		if (d->running) {
769 			CE_UNLOCK (bd);
770 			splx (s);
771 			return EBUSY;
772 		}
773 	}
774 
775 	/* Ok, we can unload driver */
776 	/* At first we should disable interrupts */
777 	ce_destroy = 1;
778 	TAU32_DisableInterrupts(b->ddk.pControllerObject);
779 
780 	callout_stop (&led_timo[b->num]);
781 
782 	for (c = b->chan; c < b->chan + NCHAN; ++c) {
783 		drv_t *d = (drv_t*) c->sys;
784 
785 		if (! d || ! d->chan)
786 			continue;
787 		callout_stop (&d->timeout_handle);
788 #ifndef NETGRAPH
789 		/* Detach from the packet filter list of interfaces. */
790 		bpfdetach (d->ifp);
791 
792 		/* Detach from the sync PPP list. */
793 		sppp_detach (d->ifp);
794 
795 		/* Detach from the system list of interfaces. */
796 		if_detach (d->ifp);
797 #if __FreeBSD_version > 600031
798 		if_free(d->ifp);
799 #else
800 		free (d->ifp, M_DEVBUF);
801 #endif
802 
803 		IF_DRAIN (&d->rqueue);
804 #if __FreeBSD_version >= 500000
805 		mtx_destroy (&d->rqueue.ifq_mtx);
806 #endif
807 #else
808 #if __FreeBSD_version >= 500000
809 		if (d->node) {
810 			ng_rmnode_self (d->node);
811 			NG_NODE_UNREF (d->node);
812 			d->node = NULL;
813 		}
814 		IF_DRAIN (&d->rqueue);
815 		mtx_destroy (&d->queue.ifq_mtx);
816 		mtx_destroy (&d->hi_queue.ifq_mtx);
817 		mtx_destroy (&d->rqueue.ifq_mtx);
818 #else
819 		ng_rmnode (d->node);
820 		d->node = 0;
821 #endif
822 #endif
823 		destroy_dev (d->devt);
824 	}
825 
826 	CE_UNLOCK (bd);
827 	splx (s);
828 
829 	callout_drain (&led_timo[b->num]);
830 
831 	/* Disable the interrupt request. */
832 	bus_teardown_intr (dev, bd->ce_irq, bd->ce_intrhand);
833 	bus_release_resource (dev, SYS_RES_IRQ, 0, bd->ce_irq);
834 	TAU32_DestructiveHalt (b->ddk.pControllerObject, 0);
835 	bus_release_resource (dev, SYS_RES_MEMORY, PCIR_BAR(0), bd->ce_res);
836 
837 	for (c = b->chan; c < b->chan + NCHAN; ++c) {
838 		drv_t *d = (drv_t*) c->sys;
839 
840 		if (! d || ! d->chan)
841 			continue;
842 		callout_drain (&d->timeout_handle);
843 		channel [b->num * NCHAN + c->num] = NULL;
844 		/* Deallocate buffers. */
845 		ce_bus_dma_mem_free (&d->dmamem);
846 	}
847 	adapter [b->num] = NULL;
848 	ce_bus_dma_mem_free (&bd->dmamem);
849 	free (b, M_DEVBUF);
850 #if __FreeBSD_version >= 504000
851 	mtx_destroy (&bd->ce_mtx);
852 #endif
853 	return 0;
854 }
855 
856 #ifndef NETGRAPH
ce_ifstart(struct ifnet * ifp)857 static void ce_ifstart (struct ifnet *ifp)
858 {
859 	drv_t *d = ifp->if_softc;
860 	bdrv_t *bd = d->board->sys;
861 
862 	CE_LOCK (bd);
863 	ce_start (d);
864 	CE_UNLOCK (bd);
865 }
866 
ce_tlf(struct sppp * sp)867 static void ce_tlf (struct sppp *sp)
868 {
869 	drv_t *d = SP2IFP(sp)->if_softc;
870 
871 	CE_DEBUG2 (d, ("ce_tlf\n"));
872 	sp->pp_down (sp);
873 }
874 
ce_tls(struct sppp * sp)875 static void ce_tls (struct sppp *sp)
876 {
877 	drv_t *d = SP2IFP(sp)->if_softc;
878 
879 	CE_DEBUG2 (d, ("ce_tls\n"));
880 	sp->pp_up (sp);
881 }
882 
883 /*
884  * Process an ioctl request.
885  */
ce_sioctl(struct ifnet * ifp,u_long cmd,caddr_t data)886 static int ce_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data)
887 {
888 	drv_t *d = ifp->if_softc;
889 	bdrv_t *bd = d->board->sys;
890 	int error, s, was_up, should_be_up;
891 
892 #if __FreeBSD_version >= 600034
893 	was_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
894 #else
895 	was_up = (ifp->if_flags & IFF_RUNNING) != 0;
896 #endif
897 	error = sppp_ioctl (ifp, cmd, data);
898 
899 	if (error)
900 		return error;
901 
902 	if (! (ifp->if_flags & IFF_DEBUG))
903 		d->chan->debug = 0;
904 	else
905 		d->chan->debug = d->chan->debug_shadow;
906 
907 	switch (cmd) {
908 	default:	   CE_DEBUG2 (d, ("ioctl 0x%lx\n", cmd));   return 0;
909 	case SIOCADDMULTI: CE_DEBUG2 (d, ("ioctl SIOCADDMULTI\n")); return 0;
910 	case SIOCDELMULTI: CE_DEBUG2 (d, ("ioctl SIOCDELMULTI\n")); return 0;
911 	case SIOCSIFFLAGS: CE_DEBUG2 (d, ("ioctl SIOCSIFFLAGS\n")); break;
912 	case SIOCSIFADDR:  CE_DEBUG2 (d, ("ioctl SIOCSIFADDR\n"));  break;
913 	}
914 
915 	/* We get here only in case of SIFFLAGS or SIFADDR. */
916 	s = splimp ();
917 	CE_LOCK (bd);
918 #if __FreeBSD_version >= 600034
919 	should_be_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
920 #else
921 	should_be_up = (ifp->if_flags & IFF_RUNNING) != 0;
922 #endif
923 	if (! was_up && should_be_up) {
924 		/* Interface goes up -- start it. */
925 		ce_up (d);
926 		ce_start (d);
927 	} else if (was_up && ! should_be_up) {
928 		/* Interface is going down -- stop it. */
929 /*		if ((IFP2SP(ifp)->pp_flags & PP_FR) || (ifp->if_flags & PP_CISCO))*/
930 		ce_down (d);
931 	}
932 	CE_DEBUG (d, ("ioctl 0x%lx p4\n", cmd));
933 	CE_UNLOCK (bd);
934 	splx (s);
935 	return 0;
936 }
937 
938 /*
939  * Initialization of interface.
940  * It seems to be never called by upper level?
941  */
ce_initialize(void * softc)942 static void ce_initialize (void *softc)
943 {
944 	drv_t *d = softc;
945 
946 	CE_DEBUG (d, ("ce_initialize\n"));
947 }
948 #endif /*NETGRAPH*/
949 
950 /*
951  * Stop the interface.  Called on splimp().
952  */
ce_down(drv_t * d)953 static void ce_down (drv_t *d)
954 {
955 	CE_DEBUG (d, ("ce_down\n"));
956 	/* Interface is going down -- stop it. */
957 	ce_set_dtr (d->chan, 0);
958 	ce_set_rts (d->chan, 0);
959 
960 	d->running = 0;
961 	callout_stop (&d->timeout_handle);
962 }
963 
964 /*
965  * Start the interface.  Called on splimp().
966  */
ce_up(drv_t * d)967 static void ce_up (drv_t *d)
968 {
969 	CE_DEBUG (d, ("ce_up\n"));
970 	ce_set_dtr (d->chan, 1);
971 	ce_set_rts (d->chan, 1);
972 
973 	d->running = 1;
974 }
975 
976 /*
977  * Start output on the interface.  Get another datagram to send
978  * off of the interface queue, and copy it to the interface
979  * before starting the output.
980  */
ce_send(drv_t * d)981 static void ce_send (drv_t *d)
982 {
983 	struct mbuf *m;
984 	u_short len;
985 
986 	CE_DEBUG2 (d, ("ce_send\n"));
987 
988 	/* No output if the interface is down. */
989 	if (! d->running)
990 		return;
991 
992 	while (ce_transmit_space (d->chan)) {
993 		/* Get the packet to send. */
994 #ifdef NETGRAPH
995 		IF_DEQUEUE (&d->hi_queue, m);
996 		if (! m)
997 			IF_DEQUEUE (&d->queue, m);
998 #else
999 		m = sppp_dequeue (d->ifp);
1000 #endif
1001 		if (! m)
1002 			return;
1003 #ifndef NETGRAPH
1004 #if __FreeBSD_version >= 500000
1005 		BPF_MTAP (d->ifp, m);
1006 #else
1007 		if (d->ifp->if_bpf)
1008 			bpf_mtap (d->ifp, m);
1009 #endif
1010 #endif
1011 #if __FreeBSD_version >= 490000
1012 		len = m_length (m, NULL);
1013 #else
1014 		len = m->m_pkthdr.len;
1015 #endif
1016 		if (len >= BUFSZ)
1017 			printf ("%s: too long packet: %d bytes: ",
1018 				d->name, len);
1019 		else if (! m->m_next)
1020 			ce_send_packet (d->chan, (u_char*) mtod (m, caddr_t), len, 0);
1021 		else {
1022 			ce_buf_item_t *item = (ce_buf_item_t*)d->chan->tx_queue;
1023 			m_copydata (m, 0, len, item->buf);
1024 			ce_send_packet (d->chan, item->buf, len, 0);
1025 		}
1026 		m_freem (m);
1027 		/* Set up transmit timeout, if the transmit ring is not empty.*/
1028 		d->timeout = 10;
1029 	}
1030 #ifndef NETGRAPH
1031 #if __FreeBSD_version >= 600034
1032 	d->ifp->if_flags |= IFF_DRV_OACTIVE;
1033 #else
1034 	d->ifp->if_flags |= IFF_OACTIVE;
1035 #endif
1036 #endif
1037 }
1038 
1039 /*
1040  * Start output on the interface.
1041  * Always called on splimp().
1042  */
ce_start(drv_t * d)1043 static void ce_start (drv_t *d)
1044 {
1045 	if (d->running) {
1046 		if (! d->chan->dtr)
1047 			ce_set_dtr (d->chan, 1);
1048 		if (! d->chan->rts)
1049 			ce_set_rts (d->chan, 1);
1050 		ce_send (d);
1051 		callout_reset (&d->timeout_handle, hz, ce_watchdog_timer, d);
1052 	}
1053 }
1054 
1055 /*
1056  * Handle transmit timeouts.
1057  * Recover after lost transmit interrupts.
1058  * Always called on splimp().
1059  */
ce_watchdog(drv_t * d)1060 static void ce_watchdog (drv_t *d)
1061 {
1062 	CE_DEBUG (d, ("device timeout\n"));
1063 	if (d->running) {
1064 		ce_set_dtr (d->chan, 0);
1065 		ce_set_rts (d->chan, 0);
1066 /*		ce_stop_chan (d->chan);*/
1067 /*		ce_start_chan (d->chan, 1, 1, 0, 0);*/
1068 		ce_set_dtr (d->chan, 1);
1069 		ce_set_rts (d->chan, 1);
1070 		ce_start (d);
1071 	}
1072 }
1073 
ce_watchdog_timer(void * arg)1074 static void ce_watchdog_timer (void *arg)
1075 {
1076 	drv_t *d = arg;
1077 	bdrv_t *bd = d->board->sys;
1078 
1079 	CE_LOCK(bd);
1080 	if (d->timeout == 1)
1081 		ce_watchdog (d);
1082 	if (d->timeout)
1083 		d->timeout--;
1084 	callout_reset (&d->timeout_handle, hz, ce_watchdog_timer, d);
1085 	CE_UNLOCK(bd);
1086 }
1087 
ce_transmit(ce_chan_t * c,void * attachment,int len)1088 static void ce_transmit (ce_chan_t *c, void *attachment, int len)
1089 {
1090 	drv_t *d = c->sys;
1091 
1092 	d->timeout = 0;
1093 #ifndef NETGRAPH
1094 	if_inc_counter(d->ifp, IFCOUNTER_OPACKETS, 1);
1095 #if __FreeBSD_version >=  600034
1096 	d->ifp->if_flags &= ~IFF_DRV_OACTIVE;
1097 #else
1098 	d->ifp->if_flags &= ~IFF_OACTIVE;
1099 #endif
1100 #endif
1101 	ce_start (d);
1102 }
1103 
ce_receive(ce_chan_t * c,unsigned char * data,int len)1104 static void ce_receive (ce_chan_t *c, unsigned char *data, int len)
1105 {
1106 	drv_t *d = c->sys;
1107 	struct mbuf *m;
1108 
1109 	if (! d->running)
1110 		return;
1111 
1112 	m = makembuf (data, len);
1113 	if (! m) {
1114 		CE_DEBUG (d, ("no memory for packet\n"));
1115 #ifndef NETGRAPH
1116 		if_inc_counter(d->ifp, IFCOUNTER_IQDROPS, 1);
1117 #endif
1118 		return;
1119 	}
1120 	if (c->debug > 1)
1121 		m_print (m, 0);
1122 #ifdef NETGRAPH
1123 	m->m_pkthdr.rcvif = 0;
1124 	IF_ENQUEUE(&d->rqueue, m);
1125 #else
1126 	if_inc_counter(d->ifp, IFCOUNTER_IPACKETS, 1);
1127 	m->m_pkthdr.rcvif = d->ifp;
1128 	/* Check if there's a BPF listener on this interface.
1129 	 * If so, hand off the raw packet to bpf. */
1130 	BPF_MTAP(d->ifp, m);
1131 	IF_ENQUEUE(&d->rqueue, m);
1132 #endif
1133 }
1134 
ce_error(ce_chan_t * c,int data)1135 static void ce_error (ce_chan_t *c, int data)
1136 {
1137 	drv_t *d = c->sys;
1138 
1139 	switch (data) {
1140 	case CE_FRAME:
1141 		CE_DEBUG (d, ("frame error\n"));
1142 #ifndef NETGRAPH
1143 		if_inc_counter(d->ifp, IFCOUNTER_IERRORS, 1);
1144 #endif
1145 		break;
1146 	case CE_CRC:
1147 		CE_DEBUG (d, ("crc error\n"));
1148 #ifndef NETGRAPH
1149 		if_inc_counter(d->ifp, IFCOUNTER_IERRORS, 1);
1150 #endif
1151 		break;
1152 	case CE_OVERRUN:
1153 		CE_DEBUG (d, ("overrun error\n"));
1154 #ifndef NETGRAPH
1155 		if_inc_counter(d->ifp, IFCOUNTER_COLLISIONS, 1);
1156 		if_inc_counter(d->ifp, IFCOUNTER_IERRORS, 1);
1157 #endif
1158 		break;
1159 	case CE_OVERFLOW:
1160 		CE_DEBUG (d, ("overflow error\n"));
1161 #ifndef NETGRAPH
1162 		if_inc_counter(d->ifp, IFCOUNTER_IERRORS, 1);
1163 #endif
1164 		break;
1165 	case CE_UNDERRUN:
1166 		CE_DEBUG (d, ("underrun error\n"));
1167 		d->timeout = 0;
1168 #ifndef NETGRAPH
1169 		if_inc_counter(d->ifp, IFCOUNTER_OERRORS, 1);
1170 #if __FreeBSD_version >= 600034
1171 		d->ifp->if_flags &= ~IFF_DRV_OACTIVE;
1172 #else
1173 		d->ifp->if_flags &= ~IFF_OACTIVE;
1174 #endif
1175 #endif
1176 		ce_start (d);
1177 		break;
1178 	default:
1179 		CE_DEBUG (d, ("error #%d\n", data));
1180 		break;
1181 	}
1182 }
1183 
1184 /*
1185  * You also need read, write, open, close routines.
1186  * This should get you started
1187  */
1188 #if __FreeBSD_version < 500000
ce_open(dev_t dev,int oflags,int devtype,struct proc * p)1189 static int ce_open (dev_t dev, int oflags, int devtype, struct proc *p)
1190 #else
1191 static int ce_open (struct cdev *dev, int oflags, int devtype, struct thread *td)
1192 #endif
1193 {
1194 	int unit = dev2unit (dev);
1195 	drv_t *d;
1196 
1197 	if (unit >= NBRD*NCHAN || ! (d = channel[unit]))
1198 		return ENXIO;
1199 	CE_DEBUG2 (d, ("ce_open\n"));
1200 	return 0;
1201 }
1202 
1203 /*
1204  * Only called on the LAST close.
1205  */
1206 #if __FreeBSD_version < 500000
ce_close(dev_t dev,int fflag,int devtype,struct proc * p)1207 static int ce_close (dev_t dev, int fflag, int devtype, struct proc *p)
1208 #else
1209 static int ce_close (struct cdev *dev, int fflag, int devtype, struct thread *td)
1210 #endif
1211 {
1212 	drv_t *d = channel [dev2unit (dev)];
1213 
1214 	CE_DEBUG2 (d, ("ce_close\n"));
1215 	return 0;
1216 }
1217 
ce_modem_status(ce_chan_t * c)1218 static int ce_modem_status (ce_chan_t *c)
1219 {
1220 	drv_t *d = c->sys;
1221 	bdrv_t *bd = d->board->sys;
1222 	int status, s;
1223 
1224 	status = d->running ? TIOCM_LE : 0;
1225 	s = splimp ();
1226 	CE_LOCK (bd);
1227 	if (ce_get_cd  (c)) status |= TIOCM_CD;
1228 	if (ce_get_cts (c)) status |= TIOCM_CTS;
1229 	if (ce_get_dsr (c)) status |= TIOCM_DSR;
1230 	if (c->dtr)	    status |= TIOCM_DTR;
1231 	if (c->rts)	    status |= TIOCM_RTS;
1232 	CE_UNLOCK (bd);
1233 	splx (s);
1234 	return status;
1235 }
1236 
1237 #if __FreeBSD_version < 500000
ce_ioctl(dev_t dev,u_long cmd,caddr_t data,int flag,struct proc * p)1238 static int ce_ioctl (dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
1239 #else
1240 static int ce_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
1241 #endif
1242 {
1243 	drv_t *d = channel [dev2unit (dev)];
1244 	bdrv_t *bd = d->board->sys;
1245 	ce_chan_t *c = d->chan;
1246 	struct serial_statistics *st;
1247 	struct e1_statistics *opte1;
1248 	int error, s;
1249 	char mask[16];
1250 
1251 	switch (cmd) {
1252 	case SERIAL_GETREGISTERED:
1253 		CE_DEBUG2 (d, ("ioctl: getregistered\n"));
1254 		bzero (mask, sizeof(mask));
1255 		for (s=0; s<NBRD*NCHAN; ++s)
1256 			if (channel [s])
1257 				mask [s/8] |= 1 << (s & 7);
1258 		bcopy (mask, data, sizeof (mask));
1259 		return 0;
1260 
1261 #ifndef NETGRAPH
1262 	case SERIAL_GETPROTO:
1263 		CE_DEBUG2 (d, ("ioctl: getproto\n"));
1264 		strcpy ((char*)data, (IFP2SP(d->ifp)->pp_flags & PP_FR) ? "fr" :
1265 			(d->ifp->if_flags & PP_CISCO) ? "cisco" : "ppp");
1266 		return 0;
1267 
1268 	case SERIAL_SETPROTO:
1269 		CE_DEBUG2 (d, ("ioctl: setproto\n"));
1270 		/* Only for superuser! */
1271 #if __FreeBSD_version < 500000
1272 		error = suser (p);
1273 #elif __FreeBSD_version < 700000
1274 		error = suser (td);
1275 #else
1276 		error = priv_check (td, PRIV_DRIVER);
1277 #endif
1278 		if (error)
1279 			return error;
1280 #if __FreeBSD_version >= 600034
1281 		if (d->ifp->if_flags & IFF_DRV_RUNNING)
1282 #else
1283 		if (d->ifp->if_flags & IFF_RUNNING)
1284 #endif
1285 			return EBUSY;
1286 		if (! strcmp ("cisco", (char*)data)) {
1287 			IFP2SP(d->ifp)->pp_flags &= ~(PP_FR);
1288 			IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
1289 			d->ifp->if_flags |= PP_CISCO;
1290 #if PP_FR != 0
1291 		} else if (! strcmp ("fr", (char*)data)) {
1292 			d->ifp->if_flags &= ~(PP_CISCO);
1293 			IFP2SP(d->ifp)->pp_flags |= PP_FR | PP_KEEPALIVE;
1294 #endif
1295 		} else if (! strcmp ("ppp", (char*)data)) {
1296 			IFP2SP(d->ifp)->pp_flags &= ~PP_FR;
1297 			IFP2SP(d->ifp)->pp_flags &= ~PP_KEEPALIVE;
1298 			d->ifp->if_flags &= ~(PP_CISCO);
1299 		} else
1300 			return EINVAL;
1301 		return 0;
1302 
1303 	case SERIAL_GETKEEPALIVE:
1304 		CE_DEBUG2 (d, ("ioctl: getkeepalive\n"));
1305 		if ((IFP2SP(d->ifp)->pp_flags & PP_FR) ||
1306 			(d->ifp->if_flags & PP_CISCO))
1307 			return EINVAL;
1308 		*(int*)data = (IFP2SP(d->ifp)->pp_flags & PP_KEEPALIVE) ? 1 : 0;
1309 		return 0;
1310 
1311 	case SERIAL_SETKEEPALIVE:
1312 		CE_DEBUG2 (d, ("ioctl: setkeepalive\n"));
1313 		/* Only for superuser! */
1314 #if __FreeBSD_version < 500000
1315 		error = suser (p);
1316 #elif __FreeBSD_version < 700000
1317 		error = suser (td);
1318 #else
1319 		error = priv_check (td, PRIV_DRIVER);
1320 #endif
1321 		if (error)
1322 			return error;
1323 		if ((IFP2SP(d->ifp)->pp_flags & PP_FR) ||
1324 			(d->ifp->if_flags & PP_CISCO))
1325 			return EINVAL;
1326 		s = splimp ();
1327 		CE_LOCK (bd);
1328 		if (*(int*)data)
1329 			IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
1330 		else
1331 			IFP2SP(d->ifp)->pp_flags &= ~PP_KEEPALIVE;
1332 		CE_UNLOCK (bd);
1333 		splx (s);
1334 		return 0;
1335 #endif /*NETGRAPH*/
1336 
1337 	case SERIAL_GETMODE:
1338 		CE_DEBUG2 (d, ("ioctl: getmode\n"));
1339 		*(int*)data = SERIAL_HDLC;
1340 		return 0;
1341 
1342 	case SERIAL_SETMODE:
1343 		/* Only for superuser! */
1344 #if __FreeBSD_version < 500000
1345 		error = suser (p);
1346 #elif __FreeBSD_version < 700000
1347 		error = suser (td);
1348 #else
1349 		error = priv_check (td, PRIV_DRIVER);
1350 #endif
1351 		if (error)
1352 			return error;
1353 		if (*(int*)data != SERIAL_HDLC)
1354 			return EINVAL;
1355 		return 0;
1356 
1357 	case SERIAL_GETCFG:
1358 		CE_DEBUG2 (d, ("ioctl: getcfg\n"));
1359 		*(char*)data = 'c';
1360 		return 0;
1361 
1362 	case SERIAL_SETCFG:
1363 		CE_DEBUG2 (d, ("ioctl: setcfg\n"));
1364 #if __FreeBSD_version < 500000
1365 		error = suser (p);
1366 #elif __FreeBSD_version < 700000
1367 		error = suser (td);
1368 #else
1369 		error = priv_check (td, PRIV_DRIVER);
1370 #endif
1371 		if (error)
1372 			return error;
1373 		if (*((char*)data) != 'c')
1374 			return EINVAL;
1375 		return 0;
1376 
1377 	case SERIAL_GETSTAT:
1378 		CE_DEBUG2 (d, ("ioctl: getstat\n"));
1379 		st = (struct serial_statistics*) data;
1380 		st->rintr  = c->rintr;
1381 		st->tintr  = c->tintr;
1382 		st->mintr  = 0;
1383 		st->ibytes = c->ibytes;
1384 		st->ipkts  = c->ipkts;
1385 		st->obytes = c->obytes;
1386 		st->opkts  = c->opkts;
1387 		st->ierrs  = c->overrun + c->frame + c->crc;
1388 		st->oerrs  = c->underrun;
1389 		return 0;
1390 
1391 	case SERIAL_GETESTAT:
1392 		CE_DEBUG2 (d, ("ioctl: getestat\n"));
1393 		if (c->type != T_E1)
1394 			return EINVAL;
1395 		opte1 = (struct e1_statistics*) data;
1396 
1397 		opte1->status	   = 0;
1398 		if (c->status & ESTS_NOALARM)
1399 			opte1->status |= E1_NOALARM;
1400 		if (c->status & ESTS_LOS)
1401 			opte1->status |= E1_LOS;
1402 		if (c->status & ESTS_LOF)
1403 			opte1->status |= E1_LOF;
1404 		if (c->status & ESTS_AIS)
1405 			opte1->status |= E1_AIS;
1406 		if (c->status & ESTS_LOMF)
1407 			opte1->status |= E1_LOMF;
1408 		if (c->status & ESTS_AIS16)
1409 			opte1->status |= E1_AIS16;
1410 		if (c->status & ESTS_FARLOF)
1411 			opte1->status |= E1_FARLOF;
1412 		if (c->status & ESTS_FARLOMF)
1413 			opte1->status |= E1_FARLOMF;
1414 		if (c->status & ESTS_TSTREQ)
1415 			opte1->status |= E1_TSTREQ;
1416 		if (c->status & ESTS_TSTERR)
1417 			opte1->status |= E1_TSTERR;
1418 
1419 		opte1->cursec	    = c->cursec;
1420 		opte1->totsec	    = c->totsec + c->cursec;
1421 
1422 		opte1->currnt.bpv   = c->currnt.bpv;
1423 		opte1->currnt.fse   = c->currnt.fse;
1424 		opte1->currnt.crce  = c->currnt.crce;
1425 		opte1->currnt.rcrce = c->currnt.rcrce;
1426 		opte1->currnt.uas   = c->currnt.uas;
1427 		opte1->currnt.les   = c->currnt.les;
1428 		opte1->currnt.es    = c->currnt.es;
1429 		opte1->currnt.bes   = c->currnt.bes;
1430 		opte1->currnt.ses   = c->currnt.ses;
1431 		opte1->currnt.oofs  = c->currnt.oofs;
1432 		opte1->currnt.css   = c->currnt.css;
1433 		opte1->currnt.dm    = c->currnt.dm;
1434 
1435 		opte1->total.bpv    = c->total.bpv   + c->currnt.bpv;
1436 		opte1->total.fse    = c->total.fse   + c->currnt.fse;
1437 		opte1->total.crce   = c->total.crce  + c->currnt.crce;
1438 		opte1->total.rcrce  = c->total.rcrce + c->currnt.rcrce;
1439 		opte1->total.uas    = c->total.uas   + c->currnt.uas;
1440 		opte1->total.les    = c->total.les   + c->currnt.les;
1441 		opte1->total.es	    = c->total.es    + c->currnt.es;
1442 		opte1->total.bes    = c->total.bes   + c->currnt.bes;
1443 		opte1->total.ses    = c->total.ses   + c->currnt.ses;
1444 		opte1->total.oofs   = c->total.oofs  + c->currnt.oofs;
1445 		opte1->total.css    = c->total.css   + c->currnt.css;
1446 		opte1->total.dm	    = c->total.dm    + c->currnt.dm;
1447 		for (s=0; s<48; ++s) {
1448 			opte1->interval[s].bpv   = c->interval[s].bpv;
1449 			opte1->interval[s].fse   = c->interval[s].fse;
1450 			opte1->interval[s].crce  = c->interval[s].crce;
1451 			opte1->interval[s].rcrce = c->interval[s].rcrce;
1452 			opte1->interval[s].uas   = c->interval[s].uas;
1453 			opte1->interval[s].les   = c->interval[s].les;
1454 			opte1->interval[s].es	 = c->interval[s].es;
1455 			opte1->interval[s].bes   = c->interval[s].bes;
1456 			opte1->interval[s].ses   = c->interval[s].ses;
1457 			opte1->interval[s].oofs  = c->interval[s].oofs;
1458 			opte1->interval[s].css   = c->interval[s].css;
1459 			opte1->interval[s].dm	 = c->interval[s].dm;
1460 		}
1461 		return 0;
1462 
1463 	case SERIAL_CLRSTAT:
1464 		CE_DEBUG2 (d, ("ioctl: clrstat\n"));
1465 		/* Only for superuser! */
1466 #if __FreeBSD_version < 500000
1467 		error = suser (p);
1468 #elif __FreeBSD_version < 700000
1469 		error = suser (td);
1470 #else
1471 		error = priv_check (td, PRIV_DRIVER);
1472 #endif
1473 		if (error)
1474 			return error;
1475 		c->rintr    = 0;
1476 		c->tintr    = 0;
1477 		c->ibytes   = 0;
1478 		c->obytes   = 0;
1479 		c->ipkts    = 0;
1480 		c->opkts    = 0;
1481 		c->overrun  = 0;
1482 		c->frame    = 0;
1483 		c->crc	    = 0;
1484 		c->underrun = 0;
1485 		bzero (&c->currnt, sizeof (c->currnt));
1486 		bzero (&c->total, sizeof (c->total));
1487 		bzero (c->interval, sizeof (c->interval));
1488 		return 0;
1489 
1490 	case SERIAL_GETLOOP:
1491 		CE_DEBUG2 (d, ("ioctl: getloop\n"));
1492 		if (c->type != T_E1)
1493 			return EINVAL;
1494 		*(int*)data = c->lloop;
1495 		return 0;
1496 
1497 	case SERIAL_SETLOOP:
1498 		CE_DEBUG2 (d, ("ioctl: setloop\n"));
1499 		if (c->type != T_E1)
1500 			return EINVAL;
1501 		/* Only for superuser! */
1502 #if __FreeBSD_version < 500000
1503 		error = suser (p);
1504 #elif __FreeBSD_version < 700000
1505 		error = suser (td);
1506 #else
1507 		error = priv_check (td, PRIV_DRIVER);
1508 #endif
1509 		if (error)
1510 			return error;
1511 		s = splimp ();
1512 		CE_LOCK (bd);
1513 		ce_set_lloop (c, *(int*)data);
1514 		CE_UNLOCK (bd);
1515 		splx (s);
1516 		return 0;
1517 
1518 	case SERIAL_GETRLOOP:
1519 		CE_DEBUG2 (d, ("ioctl: getrloop\n"));
1520 		if (c->type != T_E1)
1521 			return EINVAL;
1522 		*(int*)data = c->rloop;
1523 		return 0;
1524 
1525 	case SERIAL_SETRLOOP:
1526 		CE_DEBUG2 (d, ("ioctl: setloop\n"));
1527 		if (c->type != T_E1)
1528 			return EINVAL;
1529 		/* Only for superuser! */
1530 #if __FreeBSD_version < 500000
1531 		error = suser (p);
1532 #elif __FreeBSD_version < 700000
1533 		error = suser (td);
1534 #else
1535 		error = priv_check (td, PRIV_DRIVER);
1536 #endif
1537 		if (error)
1538 			return error;
1539 		s = splimp ();
1540 		CE_LOCK (bd);
1541 		ce_set_rloop (c, *(int*)data);
1542 		CE_UNLOCK (bd);
1543 		splx (s);
1544 		return 0;
1545 
1546 	case SERIAL_GETDEBUG:
1547 		CE_DEBUG2 (d, ("ioctl: getdebug\n"));
1548 		*(int*)data = d->chan->debug;
1549 		return 0;
1550 
1551 	case SERIAL_SETDEBUG:
1552 		CE_DEBUG2 (d, ("ioctl: setdebug\n"));
1553 		/* Only for superuser! */
1554 #if __FreeBSD_version < 500000
1555 		error = suser (p);
1556 #elif __FreeBSD_version < 700000
1557 		error = suser (td);
1558 #else
1559 		error = priv_check (td, PRIV_DRIVER);
1560 #endif
1561 		if (error)
1562 			return error;
1563 #ifndef	NETGRAPH
1564 		/*
1565 		 * The debug_shadow is always greater than zero for logic
1566 		 * simplicity.  For switching debug off the IFF_DEBUG is
1567 		 * responsible.
1568 		 */
1569 		d->chan->debug_shadow = (*(int*)data) ? (*(int*)data) : 1;
1570 		if (d->ifp->if_flags & IFF_DEBUG)
1571 			d->chan->debug = d->chan->debug_shadow;
1572 #else
1573 		d->chan->debug = *(int*)data;
1574 #endif
1575 		return 0;
1576 
1577 	case SERIAL_GETBAUD:
1578 		CE_DEBUG2 (d, ("ioctl: getbaud\n"));
1579 		*(long*)data = c->baud;
1580 		return 0;
1581 
1582 	case SERIAL_SETBAUD:
1583 		CE_DEBUG2 (d, ("ioctl: setbaud\n"));
1584 		if (c->type != T_E1 || !c->unfram)
1585 			return EINVAL;
1586 		/* Only for superuser! */
1587 #if __FreeBSD_version < 500000
1588 		error = suser (p);
1589 #elif __FreeBSD_version < 700000
1590 		error = suser (td);
1591 #else
1592 		error = priv_check (td, PRIV_DRIVER);
1593 #endif
1594 		if (error)
1595 			return error;
1596 		s = splimp ();
1597 		CE_LOCK (bd);
1598 		ce_set_baud (c, *(long*)data);
1599 		CE_UNLOCK (bd);
1600 		splx (s);
1601 		return 0;
1602 
1603 	case SERIAL_GETTIMESLOTS:
1604 		CE_DEBUG2 (d, ("ioctl: gettimeslots\n"));
1605 		if ((c->type != T_E1 || c->unfram) && c->type != T_DATA)
1606 			return EINVAL;
1607 		*(u_long*)data = c->ts;
1608 		return 0;
1609 
1610 	case SERIAL_SETTIMESLOTS:
1611 		CE_DEBUG2 (d, ("ioctl: settimeslots\n"));
1612 		/* Only for superuser! */
1613 #if __FreeBSD_version < 500000
1614 		error = suser (p);
1615 #elif __FreeBSD_version < 700000
1616 		error = suser (td);
1617 #else
1618 		error = priv_check (td, PRIV_DRIVER);
1619 #endif
1620 		if (error)
1621 			return error;
1622 		if ((c->type != T_E1 || c->unfram) && c->type != T_DATA)
1623 			return EINVAL;
1624 		s = splimp ();
1625 		CE_LOCK (bd);
1626 		ce_set_ts (c, *(u_long*)data);
1627 		CE_UNLOCK (bd);
1628 		splx (s);
1629 		return 0;
1630 
1631 	case SERIAL_GETHIGAIN:
1632 		CE_DEBUG2 (d, ("ioctl: gethigain\n"));
1633 		if (c->type != T_E1)
1634 			return EINVAL;
1635 		*(int*)data = c->higain;
1636 		return 0;
1637 
1638 	case SERIAL_SETHIGAIN:
1639 		CE_DEBUG2 (d, ("ioctl: sethigain\n"));
1640 		if (c->type != T_E1)
1641 			return EINVAL;
1642 		/* Only for superuser! */
1643 #if __FreeBSD_version < 500000
1644 		error = suser (p);
1645 #elif __FreeBSD_version < 700000
1646 		error = suser (td);
1647 #else
1648 		error = priv_check (td, PRIV_DRIVER);
1649 #endif
1650 		if (error)
1651 			return error;
1652 		s = splimp ();
1653 		CE_LOCK (bd);
1654 		ce_set_higain (c, *(int*)data);
1655 		CE_UNLOCK (bd);
1656 		splx (s);
1657 		return 0;
1658 
1659 	case SERIAL_GETPHONY:
1660 		CE_DEBUG2 (d, ("ioctl: getphony\n"));
1661 		*(int*)data = c->phony;
1662 		return 0;
1663 
1664 	case SERIAL_SETPHONY:
1665 		CE_DEBUG2 (d, ("ioctl: setphony\n"));
1666 		/* Only for superuser! */
1667 #if __FreeBSD_version < 500000
1668 		error = suser (p);
1669 #elif __FreeBSD_version < 700000
1670 		error = suser (td);
1671 #else
1672 		error = priv_check (td, PRIV_DRIVER);
1673 #endif
1674 		if (error)
1675 			return error;
1676 		s = splimp ();
1677 		CE_LOCK (bd);
1678 		ce_set_phony (c, *(int*)data);
1679 		CE_UNLOCK (bd);
1680 		splx (s);
1681 		return 0;
1682 
1683 	case SERIAL_GETUNFRAM:
1684 		CE_DEBUG2 (d, ("ioctl: getunfram\n"));
1685 		if (c->type != T_E1 || c->num != 0)
1686 			return EINVAL;
1687 		*(int*)data = c->unfram;
1688 		return 0;
1689 
1690 	case SERIAL_SETUNFRAM:
1691 		CE_DEBUG2 (d, ("ioctl: setunfram\n"));
1692 		if (c->type != T_E1 || c->num != 0)
1693 			return EINVAL;
1694 		/* Only for superuser! */
1695 #if __FreeBSD_version < 500000
1696 		error = suser (p);
1697 #elif __FreeBSD_version < 700000
1698 		error = suser (td);
1699 #else
1700 		error = priv_check (td, PRIV_DRIVER);
1701 #endif
1702 		if (error)
1703 			return error;
1704 		s = splimp ();
1705 		CE_LOCK (bd);
1706 		ce_set_unfram (c, *(int*)data);
1707 		CE_UNLOCK (bd);
1708 		splx (s);
1709 		return 0;
1710 
1711 	case SERIAL_GETSCRAMBLER:
1712 		CE_DEBUG2 (d, ("ioctl: getscrambler\n"));
1713 		if (!c->unfram)
1714 			return EINVAL;
1715 		*(int*)data = c->scrambler;
1716 		return 0;
1717 
1718 	case SERIAL_SETSCRAMBLER:
1719 		CE_DEBUG2 (d, ("ioctl: setscrambler\n"));
1720 		/* Only for superuser! */
1721 #if __FreeBSD_version < 500000
1722 		error = suser (p);
1723 #elif __FreeBSD_version < 700000
1724 		error = suser (td);
1725 #else
1726 		error = priv_check (td, PRIV_DRIVER);
1727 #endif
1728 		if (error)
1729 			return error;
1730 		if (!c->unfram)
1731 			return EINVAL;
1732 		s = splimp ();
1733 		CE_LOCK (bd);
1734 		ce_set_scrambler (c, *(int*)data);
1735 		CE_UNLOCK (bd);
1736 		splx (s);
1737 		return 0;
1738 
1739 	case SERIAL_GETMONITOR:
1740 		CE_DEBUG2 (d, ("ioctl: getmonitor\n"));
1741 		if (c->type != T_E1)
1742 			return EINVAL;
1743 		*(int*)data = c->monitor;
1744 		return 0;
1745 
1746 	case SERIAL_SETMONITOR:
1747 		CE_DEBUG2 (d, ("ioctl: setmonitor\n"));
1748 		/* Only for superuser! */
1749 #if __FreeBSD_version < 500000
1750 		error = suser (p);
1751 #elif __FreeBSD_version < 700000
1752 		error = suser (td);
1753 #else
1754 		error = priv_check (td, PRIV_DRIVER);
1755 #endif
1756 		if (error)
1757 			return error;
1758 		if (c->type != T_E1)
1759 			return EINVAL;
1760 		s = splimp ();
1761 		CE_LOCK (bd);
1762 		ce_set_monitor (c, *(int*)data);
1763 		CE_UNLOCK (bd);
1764 		splx (s);
1765 		return 0;
1766 
1767 	case SERIAL_GETUSE16:
1768 		CE_DEBUG2 (d, ("ioctl: getuse16\n"));
1769 		if (c->type != T_E1 || c->unfram)
1770 			return EINVAL;
1771 		*(int*)data = c->use16;
1772 		return 0;
1773 
1774 	case SERIAL_SETUSE16:
1775 		CE_DEBUG2 (d, ("ioctl: setuse16\n"));
1776 		/* Only for superuser! */
1777 #if __FreeBSD_version < 500000
1778 		error = suser (p);
1779 #elif __FreeBSD_version < 700000
1780 		error = suser (td);
1781 #else
1782 		error = priv_check (td, PRIV_DRIVER);
1783 #endif
1784 		if (error)
1785 			return error;
1786 		if (c->type != T_E1)
1787 			return EINVAL;
1788 		s = splimp ();
1789 		CE_LOCK (bd);
1790 		ce_set_use16 (c, *(int*)data);
1791 		CE_UNLOCK (bd);
1792 		splx (s);
1793 		return 0;
1794 
1795 	case SERIAL_GETCRC4:
1796 		CE_DEBUG2 (d, ("ioctl: getcrc4\n"));
1797 		if (c->type != T_E1 || c->unfram)
1798 			return EINVAL;
1799 		*(int*)data = c->crc4;
1800 		return 0;
1801 
1802 	case SERIAL_SETCRC4:
1803 		CE_DEBUG2 (d, ("ioctl: setcrc4\n"));
1804 		/* Only for superuser! */
1805 #if __FreeBSD_version < 500000
1806 		error = suser (p);
1807 #elif __FreeBSD_version < 700000
1808 		error = suser (td);
1809 #else
1810 		error = priv_check (td, PRIV_DRIVER);
1811 #endif
1812 		if (error)
1813 			return error;
1814 		if (c->type != T_E1 || c->unfram)
1815 			return EINVAL;
1816 		s = splimp ();
1817 		CE_LOCK (bd);
1818 		ce_set_crc4 (c, *(int*)data);
1819 		CE_UNLOCK (bd);
1820 		splx (s);
1821 		return 0;
1822 
1823 	case SERIAL_GETCLK:
1824 		CE_DEBUG2 (d, ("ioctl: getclk\n"));
1825 		if (c->type != T_E1)
1826 			return EINVAL;
1827 		switch (c->gsyn) {
1828 		default:	*(int*)data = E1CLK_INTERNAL;		break;
1829 		case GSYN_RCV:	*(int*)data = E1CLK_RECEIVE;		break;
1830 		case GSYN_RCV0:	*(int*)data = E1CLK_RECEIVE_CHAN0;	break;
1831 		case GSYN_RCV1:	*(int*)data = E1CLK_RECEIVE_CHAN1;	break;
1832 		}
1833 		return 0;
1834 
1835 	case SERIAL_SETCLK:
1836 		CE_DEBUG2 (d, ("ioctl: setclk\n"));
1837 		/* Only for superuser! */
1838 #if __FreeBSD_version < 500000
1839 		error = suser (p);
1840 #elif __FreeBSD_version < 700000
1841 		error = suser (td);
1842 #else
1843 		error = priv_check (td, PRIV_DRIVER);
1844 #endif
1845 		if (error)
1846 			return error;
1847 		if (c->type != T_E1)
1848 			return EINVAL;
1849 		s = splimp ();
1850 		CE_LOCK (bd);
1851 		switch (*(int*)data) {
1852 		default:		  ce_set_gsyn (c, GSYN_INT);  break;
1853 		case E1CLK_RECEIVE:	  ce_set_gsyn (c, GSYN_RCV);  break;
1854 		case E1CLK_RECEIVE_CHAN0: ce_set_gsyn (c, GSYN_RCV0); break;
1855 		case E1CLK_RECEIVE_CHAN1: ce_set_gsyn (c, GSYN_RCV1); break;
1856 		}
1857 		CE_UNLOCK (bd);
1858 		splx (s);
1859 		return 0;
1860 
1861 #if 0
1862 	case SERIAL_RESET:
1863 		CE_DEBUG2 (d, ("ioctl: reset\n"));
1864 		/* Only for superuser! */
1865 #if __FreeBSD_version < 500000
1866 		error = suser (p);
1867 #elif __FreeBSD_version < 700000
1868 		error = suser (td);
1869 #else
1870 		error = priv_check (td, PRIV_DRIVER);
1871 #endif
1872 		if (error)
1873 			return error;
1874 		s = splimp ();
1875 		CE_LOCK (bd);
1876 /*		ce_reset (c->board, 0, 0);*/
1877 		CE_UNLOCK (bd);
1878 		splx (s);
1879 		return 0;
1880 
1881 	case SERIAL_HARDRESET:
1882 		CE_DEBUG2 (d, ("ioctl: hardreset\n"));
1883 		/* Only for superuser! */
1884 #if __FreeBSD_version < 500000
1885 		error = suser (p);
1886 #elif __FreeBSD_version < 700000
1887 		error = suser (td);
1888 #else
1889 		error = priv_check (td, PRIV_DRIVER);
1890 #endif
1891 		if (error)
1892 			return error;
1893 		s = splimp ();
1894 		CE_LOCK (bd);
1895 		/* hard_reset (c->board); */
1896 		CE_UNLOCK (bd);
1897 		splx (s);
1898 		return 0;
1899 #endif
1900 
1901 	case SERIAL_GETCABLE:
1902 		CE_DEBUG2 (d, ("ioctl: getcable\n"));
1903 		if (c->type != T_E1)
1904 			return EINVAL;
1905 		s = splimp ();
1906 		CE_LOCK (bd);
1907 		*(int*)data = CABLE_TP;
1908 		CE_UNLOCK (bd);
1909 		splx (s);
1910 		return 0;
1911 
1912 	case SERIAL_GETDIR:
1913 		CE_DEBUG2 (d, ("ioctl: getdir\n"));
1914 		if (c->type != T_E1 && c->type != T_DATA)
1915 			return EINVAL;
1916 		*(int*)data = c->dir;
1917 		return 0;
1918 
1919 	case SERIAL_SETDIR:
1920 		CE_DEBUG2 (d, ("ioctl: setdir\n"));
1921 		/* Only for superuser! */
1922 #if __FreeBSD_version < 500000
1923 		error = suser (p);
1924 #elif __FreeBSD_version < 700000
1925 		error = suser (td);
1926 #else
1927 		error = priv_check (td, PRIV_DRIVER);
1928 #endif
1929 		if (error)
1930 			return error;
1931 		s = splimp ();
1932 		CE_LOCK (bd);
1933 		ce_set_dir (c, *(int*)data);
1934 		CE_UNLOCK (bd);
1935 		splx (s);
1936 		return 0;
1937 
1938 	case TIOCSDTR:		/* Set DTR */
1939 		s = splimp ();
1940 		CE_LOCK (bd);
1941 		ce_set_dtr (c, 1);
1942 		CE_UNLOCK (bd);
1943 		splx (s);
1944 		return 0;
1945 
1946 	case TIOCCDTR:		/* Clear DTR */
1947 		s = splimp ();
1948 		CE_LOCK (bd);
1949 		ce_set_dtr (c, 0);
1950 		CE_UNLOCK (bd);
1951 		splx (s);
1952 		return 0;
1953 
1954 	case TIOCMSET:		/* Set DTR/RTS */
1955 		s = splimp ();
1956 		CE_LOCK (bd);
1957 		ce_set_dtr (c, (*(int*)data & TIOCM_DTR) ? 1 : 0);
1958 		ce_set_rts (c, (*(int*)data & TIOCM_RTS) ? 1 : 0);
1959 		CE_UNLOCK (bd);
1960 		splx (s);
1961 		return 0;
1962 
1963 	case TIOCMBIS:		/* Add DTR/RTS */
1964 		s = splimp ();
1965 		CE_LOCK (bd);
1966 		if (*(int*)data & TIOCM_DTR) ce_set_dtr (c, 1);
1967 		if (*(int*)data & TIOCM_RTS) ce_set_rts (c, 1);
1968 		CE_UNLOCK (bd);
1969 		splx (s);
1970 		return 0;
1971 
1972 	case TIOCMBIC:		/* Clear DTR/RTS */
1973 		s = splimp ();
1974 		CE_LOCK (bd);
1975 		if (*(int*)data & TIOCM_DTR) ce_set_dtr (c, 0);
1976 		if (*(int*)data & TIOCM_RTS) ce_set_rts (c, 0);
1977 		CE_UNLOCK (bd);
1978 		splx (s);
1979 		return 0;
1980 
1981 	case TIOCMGET:		/* Get modem status */
1982 		*(int*)data = ce_modem_status (c);
1983 		return 0;
1984 	}
1985 	return ENOTTY;
1986 }
1987 
1988 #ifdef NETGRAPH
1989 #if __FreeBSD_version >= 500000
ng_ce_constructor(node_p node)1990 static int ng_ce_constructor (node_p node)
1991 {
1992 	drv_t *d = NG_NODE_PRIVATE (node);
1993 #else
1994 static int ng_ce_constructor (node_p *node)
1995 {
1996 	drv_t *d = (*node)->private;
1997 #endif
1998 	CE_DEBUG (d, ("Constructor\n"));
1999 	return EINVAL;
2000 }
2001 
2002 static int ng_ce_newhook (node_p node, hook_p hook, const char *name)
2003 {
2004 	int s;
2005 #if __FreeBSD_version >= 500000
2006 	drv_t *d = NG_NODE_PRIVATE (node);
2007 #else
2008 	drv_t *d = node->private;
2009 #endif
2010 	bdrv_t *bd = d->board->sys;
2011 
2012 	CE_DEBUG (d, ("Newhook\n"));
2013 	/* Attach debug hook */
2014 	if (strcmp (name, NG_CE_HOOK_DEBUG) == 0) {
2015 #if __FreeBSD_version >= 500000
2016 		NG_HOOK_SET_PRIVATE (hook, NULL);
2017 #else
2018 		hook->private = 0;
2019 #endif
2020 		d->debug_hook = hook;
2021 		return 0;
2022 	}
2023 
2024 	/* Check for raw hook */
2025 	if (strcmp (name, NG_CE_HOOK_RAW) != 0)
2026 		return EINVAL;
2027 
2028 #if __FreeBSD_version >= 500000
2029 	NG_HOOK_SET_PRIVATE (hook, d);
2030 #else
2031 	hook->private = d;
2032 #endif
2033 	d->hook = hook;
2034 	s = splimp ();
2035 	CE_LOCK (bd);
2036 	ce_up (d);
2037 	CE_UNLOCK (bd);
2038 	splx (s);
2039 	return 0;
2040 }
2041 
2042 static char *format_timeslots (u_long s)
2043 {
2044 	static char buf [100];
2045 	char *p = buf;
2046 	int i;
2047 
2048 	for (i=1; i<32; ++i)
2049 		if ((s >> i) & 1) {
2050 			int prev = (i > 1)  & (s >> (i-1));
2051 			int next = (i < 31) & (s >> (i+1));
2052 
2053 			if (prev) {
2054 				if (next)
2055 					continue;
2056 				*p++ = '-';
2057 			} else if (p > buf)
2058 				*p++ = ',';
2059 
2060 			if (i >= 10)
2061 				*p++ = '0' + i / 10;
2062 			*p++ = '0' + i % 10;
2063 		}
2064 	*p = 0;
2065 	return buf;
2066 }
2067 
2068 static int print_modems (char *s, ce_chan_t *c, int need_header)
2069 {
2070 	int status = ce_modem_status (c);
2071 	int length = 0;
2072 
2073 	if (need_header)
2074 		length += sprintf (s + length, "  LE   DTR  DSR  RTS  CTS  CD\n");
2075 	length += sprintf (s + length, "%4s %4s %4s %4s %4s %4s\n",
2076 		status & TIOCM_LE  ? "On" : "-",
2077 		status & TIOCM_DTR ? "On" : "-",
2078 		status & TIOCM_DSR ? "On" : "-",
2079 		status & TIOCM_RTS ? "On" : "-",
2080 		status & TIOCM_CTS ? "On" : "-",
2081 		status & TIOCM_CD  ? "On" : "-");
2082 	return length;
2083 }
2084 
2085 static int print_stats (char *s, ce_chan_t *c, int need_header)
2086 {
2087 	int length = 0;
2088 
2089 	if (need_header)
2090 		length += sprintf (s + length, "  Rintr   Tintr   Mintr   Ibytes   Ipkts   Ierrs   Obytes   Opkts   Oerrs\n");
2091 	length += sprintf (s + length, "%7ld %7ld %7ld %8lu %7ld %7ld %8lu %7ld %7ld\n",
2092 		c->rintr, c->tintr, 0l, (unsigned long) c->ibytes,
2093 		c->ipkts, c->overrun + c->frame + c->crc,
2094 		(unsigned long) c->obytes, c->opkts, c->underrun);
2095 	return length;
2096 }
2097 
2098 static char *format_e1_status (u_char status)
2099 {
2100 	static char buf [80];
2101 
2102 	if (status & E1_NOALARM)
2103 		return "Ok";
2104 	buf[0] = 0;
2105 	if (status & E1_LOS)     strcat (buf, ",LOS");
2106 	if (status & E1_AIS)     strcat (buf, ",AIS");
2107 	if (status & E1_LOF)     strcat (buf, ",LOF");
2108 	if (status & E1_LOMF)    strcat (buf, ",LOMF");
2109 	if (status & E1_FARLOF)  strcat (buf, ",FARLOF");
2110 	if (status & E1_AIS16)   strcat (buf, ",AIS16");
2111 	if (status & E1_FARLOMF) strcat (buf, ",FARLOMF");
2112 	if (status & E1_TSTREQ)  strcat (buf, ",TSTREQ");
2113 	if (status & E1_TSTERR)  strcat (buf, ",TSTERR");
2114 	if (buf[0] == ',')
2115 		return buf+1;
2116 	return "Unknown";
2117 }
2118 
2119 static int print_frac (char *s, int leftalign, u_long numerator, u_long divider)
2120 {
2121 	int n, length = 0;
2122 
2123 	if (numerator < 1 || divider < 1) {
2124 		length += sprintf (s+length, leftalign ? "/-   " : "    -");
2125 		return length;
2126 	}
2127 	n = (int) (0.5 + 1000.0 * numerator / divider);
2128 	if (n < 1000) {
2129 		length += sprintf (s+length, leftalign ? "/.%-3d" : " .%03d", n);
2130 		return length;
2131 	}
2132 	*(s + length) = leftalign ? '/' : ' ';
2133 	length ++;
2134 
2135 	if	(n >= 1000000) n = (n+500) / 1000 * 1000;
2136 	else if (n >= 100000)  n = (n+50)  / 100 * 100;
2137 	else if (n >= 10000)   n = (n+5)   / 10 * 10;
2138 
2139 	switch (n) {
2140 	case 1000:    length += printf (s+length, ".999"); return length;
2141 	case 10000:   n = 9990;   break;
2142 	case 100000:  n = 99900;  break;
2143 	case 1000000: n = 999000; break;
2144 	}
2145 	if (n < 10000)	      length += sprintf (s+length, "%d.%d", n/1000, n/10%100);
2146 	else if (n < 100000)  length += sprintf (s+length, "%d.%d", n/1000, n/100%10);
2147 	else if (n < 1000000) length += sprintf (s+length, "%d.", n/1000);
2148 	else		      length += sprintf (s+length, "%d", n/1000);
2149 
2150 	return length;
2151 }
2152 
2153 static int print_e1_stats (char *s, ce_chan_t *c)
2154 {
2155 	struct e1_counters total;
2156 	u_long totsec;
2157 	int length = 0;
2158 
2159 	totsec		= c->totsec + c->cursec;
2160 	total.bpv	= c->total.bpv   + c->currnt.bpv;
2161 	total.fse	= c->total.fse   + c->currnt.fse;
2162 	total.crce	= c->total.crce  + c->currnt.crce;
2163 	total.rcrce	= c->total.rcrce + c->currnt.rcrce;
2164 	total.uas	= c->total.uas   + c->currnt.uas;
2165 	total.les	= c->total.les   + c->currnt.les;
2166 	total.es	= c->total.es    + c->currnt.es;
2167 	total.bes	= c->total.bes   + c->currnt.bes;
2168 	total.ses	= c->total.ses   + c->currnt.ses;
2169 	total.oofs	= c->total.oofs  + c->currnt.oofs;
2170 	total.css	= c->total.css   + c->currnt.css;
2171 	total.dm	= c->total.dm    + c->currnt.dm;
2172 
2173 	length += sprintf (s + length, " Unav/Degr  Bpv/Fsyn  CRC/RCRC  Err/Lerr  Sev/Bur   Oof/Slp  Status\n");
2174 
2175 	/* Unavailable seconds, degraded minutes */
2176 	length += print_frac (s + length, 0, c->currnt.uas, c->cursec);
2177 	length += print_frac (s + length, 1, 60 * c->currnt.dm, c->cursec);
2178 
2179 	/* Bipolar violations, frame sync errors */
2180 	length += print_frac (s + length, 0, c->currnt.bpv, c->cursec);
2181 	length += print_frac (s + length, 1, c->currnt.fse, c->cursec);
2182 
2183 	/* CRC errors, remote CRC errors (E-bit) */
2184 	length += print_frac (s + length, 0, c->currnt.crce, c->cursec);
2185 	length += print_frac (s + length, 1, c->currnt.rcrce, c->cursec);
2186 
2187 	/* Errored seconds, line errored seconds */
2188 	length += print_frac (s + length, 0, c->currnt.es, c->cursec);
2189 	length += print_frac (s + length, 1, c->currnt.les, c->cursec);
2190 
2191 	/* Severely errored seconds, burst errored seconds */
2192 	length += print_frac (s + length, 0, c->currnt.ses, c->cursec);
2193 	length += print_frac (s + length, 1, c->currnt.bes, c->cursec);
2194 
2195 	/* Out of frame seconds, controlled slip seconds */
2196 	length += print_frac (s + length, 0, c->currnt.oofs, c->cursec);
2197 	length += print_frac (s + length, 1, c->currnt.css, c->cursec);
2198 
2199 	length += sprintf (s + length, " %s\n", format_e1_status (c->status));
2200 
2201 	/* Print total statistics. */
2202 	length += print_frac (s + length, 0, total.uas, totsec);
2203 	length += print_frac (s + length, 1, 60 * total.dm, totsec);
2204 
2205 	length += print_frac (s + length, 0, total.bpv, totsec);
2206 	length += print_frac (s + length, 1, total.fse, totsec);
2207 
2208 	length += print_frac (s + length, 0, total.crce, totsec);
2209 	length += print_frac (s + length, 1, total.rcrce, totsec);
2210 
2211 	length += print_frac (s + length, 0, total.es, totsec);
2212 	length += print_frac (s + length, 1, total.les, totsec);
2213 
2214 	length += print_frac (s + length, 0, total.ses, totsec);
2215 	length += print_frac (s + length, 1, total.bes, totsec);
2216 
2217 	length += print_frac (s + length, 0, total.oofs, totsec);
2218 	length += print_frac (s + length, 1, total.css, totsec);
2219 
2220 	length += sprintf (s + length, " -- Total\n");
2221 	return length;
2222 }
2223 
2224 static int print_chan (char *s, ce_chan_t *c)
2225 {
2226 	drv_t *d = c->sys;
2227 	int length = 0;
2228 
2229 	length += sprintf (s + length, "ce%d", c->board->num * NCHAN + c->num);
2230 	if (d->chan->debug)
2231 		length += sprintf (s + length, " debug=%d", d->chan->debug);
2232 
2233 	if (c->board->mux) {
2234 		length += sprintf (s + length, " cfg=C");
2235 	} else {
2236 		length += sprintf (s + length, " cfg=A");
2237 	}
2238 
2239 	if (c->baud)
2240 		length += sprintf (s + length, " %ld", c->baud);
2241 	else
2242 		length += sprintf (s + length, " extclock");
2243 
2244 	if (c->type == T_E1)
2245 		switch (c->gsyn) {
2246 		case GSYN_INT   : length += sprintf (s + length, " syn=int");     break;
2247 		case GSYN_RCV   : length += sprintf (s + length, " syn=rcv");     break;
2248 		case GSYN_RCV0  : length += sprintf (s + length, " syn=rcv0");    break;
2249 		case GSYN_RCV1  : length += sprintf (s + length, " syn=rcv1");    break;
2250 		}
2251 	if (c->type == T_E1)
2252 		length += sprintf (s + length, " higain=%s", c->higain ? "on" : "off");
2253 
2254 	length += sprintf (s + length, " loop=%s", c->lloop ? "on" : "off");
2255 
2256 	if (c->type == T_E1)
2257 		length += sprintf (s + length, " ts=%s", format_timeslots (c->ts));
2258 	length += sprintf (s + length, "\n");
2259 	return length;
2260 }
2261 
2262 #if __FreeBSD_version >= 500000
2263 static int ng_ce_rcvmsg (node_p node, item_p item, hook_p lasthook)
2264 {
2265 	drv_t *d = NG_NODE_PRIVATE (node);
2266 	struct ng_mesg *msg;
2267 #else
2268 static int ng_ce_rcvmsg (node_p node, struct ng_mesg *msg,
2269 	const char *retaddr, struct ng_mesg **rptr)
2270 {
2271 	drv_t *d = node->private;
2272 #endif
2273 	struct ng_mesg *resp = NULL;
2274 	int error = 0;
2275 
2276 	CE_DEBUG (d, ("Rcvmsg\n"));
2277 #if __FreeBSD_version >= 500000
2278 	NGI_GET_MSG (item, msg);
2279 #endif
2280 	switch (msg->header.typecookie) {
2281 	default:
2282 		error = EINVAL;
2283 		break;
2284 
2285 	case NGM_CE_COOKIE:
2286 		printf ("Not implemented yet\n");
2287 		error = EINVAL;
2288 		break;
2289 
2290 	case NGM_GENERIC_COOKIE:
2291 		switch (msg->header.cmd) {
2292 		default:
2293 			error = EINVAL;
2294 			break;
2295 
2296 		case NGM_TEXT_STATUS: {
2297 			char *s;
2298 			int l = 0;
2299 			int dl = sizeof (struct ng_mesg) + 730;
2300 
2301 #if __FreeBSD_version >= 500000
2302 			NG_MKRESPONSE (resp, msg, dl, M_NOWAIT);
2303 			if (! resp) {
2304 				error = ENOMEM;
2305 				break;
2306 			}
2307 #else
2308 			resp = malloc (M_NETGRAPH, M_NOWAIT);
2309 			if (! resp) {
2310 				error = ENOMEM;
2311 				break;
2312 			}
2313 			bzero (resp, dl);
2314 #endif
2315 			s = (resp)->data;
2316 			if (d) {
2317 			l += print_chan (s + l, d->chan);
2318 			l += print_stats (s + l, d->chan, 1);
2319 			l += print_modems (s + l, d->chan, 1);
2320 			l += print_e1_stats (s + l, d->chan);
2321 			} else
2322 				l += sprintf (s + l, "Error: node not connect to channel");
2323 #if __FreeBSD_version < 500000
2324 			(resp)->header.version = NG_VERSION;
2325 			(resp)->header.arglen = strlen (s) + 1;
2326 			(resp)->header.token = msg->header.token;
2327 			(resp)->header.typecookie = NGM_CE_COOKIE;
2328 			(resp)->header.cmd = msg->header.cmd;
2329 #endif
2330 			strncpy ((resp)->header.cmdstr, "status", NG_CMDSTRSIZ);
2331 			}
2332 			break;
2333 		}
2334 		break;
2335 	}
2336 #if __FreeBSD_version >= 500000
2337 	NG_RESPOND_MSG (error, node, item, resp);
2338 	NG_FREE_MSG (msg);
2339 #else
2340 	*rptr = resp;
2341 	free (msg, M_NETGRAPH);
2342 #endif
2343 	return error;
2344 }
2345 
2346 #if __FreeBSD_version >= 500000
2347 static int ng_ce_rcvdata (hook_p hook, item_p item)
2348 {
2349 	drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE(hook));
2350 	struct mbuf *m;
2351 #if __FreeBSD_version < 502120
2352 	meta_p meta;
2353 #else
2354 	struct ng_tag_prio *ptag;
2355 #endif
2356 #else
2357 static int ng_ce_rcvdata (hook_p hook, struct mbuf *m, meta_p meta)
2358 {
2359 	drv_t *d = hook->node->private;
2360 #endif
2361 	bdrv_t *bd = d->board->sys;
2362 	struct ifqueue *q;
2363 	int s;
2364 
2365 	CE_DEBUG2 (d, ("Rcvdata\n"));
2366 #if __FreeBSD_version >= 500000
2367 	NGI_GET_M (item, m);
2368 #if __FreeBSD_version < 502120
2369 	NGI_GET_META (item, meta);
2370 #endif
2371 	NG_FREE_ITEM (item);
2372 	if (! NG_HOOK_PRIVATE (hook) || ! d) {
2373 		NG_FREE_M (m);
2374 #if __FreeBSD_version < 502120
2375 		NG_FREE_META (meta);
2376 #endif
2377 #else
2378 	if (! hook->private || ! d) {
2379 		NG_FREE_DATA (m,meta);
2380 #endif
2381 		return ENETDOWN;
2382 	}
2383 
2384 #if __FreeBSD_version >= 502120
2385 	/* Check for high priority data */
2386 	if ((ptag = (struct ng_tag_prio *)m_tag_locate(m, NGM_GENERIC_COOKIE,
2387 	    NG_TAG_PRIO, NULL)) != NULL && (ptag->priority > NG_PRIO_CUTOFF) )
2388 		q = &d->hi_queue;
2389 	else
2390 		q = &d->queue;
2391 #else
2392 	q = (meta && meta->priority > 0) ? &d->hi_queue : &d->queue;
2393 #endif
2394 
2395 	s = splimp ();
2396 	CE_LOCK (bd);
2397 #if __FreeBSD_version >= 500000
2398 	IF_LOCK (q);
2399 	if (_IF_QFULL (q)) {
2400 		IF_UNLOCK (q);
2401 		CE_UNLOCK (bd);
2402 		splx (s);
2403 		NG_FREE_M (m);
2404 #if __FreeBSD_version < 502120
2405 		NG_FREE_META (meta);
2406 #endif
2407 		return ENOBUFS;
2408 	}
2409 	_IF_ENQUEUE (q, m);
2410 	IF_UNLOCK (q);
2411 #else
2412 	if (IF_QFULL (q)) {
2413 		IF_DROP (q);
2414 		CE_UNLOCK (bd);
2415 		splx (s);
2416 		NG_FREE_DATA (m, meta);
2417 		return ENOBUFS;
2418 	}
2419 	IF_ENQUEUE (q, m);
2420 #endif
2421 	ce_start (d);
2422 	CE_UNLOCK (bd);
2423 	splx (s);
2424 	return 0;
2425 }
2426 
2427 static int ng_ce_rmnode (node_p node)
2428 {
2429 #if __FreeBSD_version >= 500000
2430 	drv_t *d = NG_NODE_PRIVATE (node);
2431 
2432 	CE_DEBUG (d, ("Rmnode\n"));
2433 	if (d && d->running) {
2434 		bdrv_t *bd = d->board->sys;
2435 		int s = splimp ();
2436 		CE_LOCK (bd);
2437 		ce_down (d);
2438 		CE_UNLOCK (bd);
2439 		splx (s);
2440 	}
2441 #ifdef	KLD_MODULE
2442 #if __FreeBSD_version >= 502120
2443 	if (node->nd_flags & NGF_REALLY_DIE) {
2444 #else
2445 	if (node->nd_flags & NG_REALLY_DIE) {
2446 #endif
2447 		NG_NODE_SET_PRIVATE (node, NULL);
2448 		NG_NODE_UNREF (node);
2449 	}
2450 #if __FreeBSD_version >= 502120
2451 	NG_NODE_REVIVE(node);		/* Persistent node */
2452 #else
2453 	node->nd_flags &= ~NG_INVALID;
2454 #endif
2455 #endif
2456 #else /* __FreeBSD_version < 500000 */
2457 	drv_t *d = node->private;
2458 
2459 	if (d && d->running) {
2460 		bdrv_t *bd = d->board->sys;
2461 		int s = splimp ();
2462 		CE_LOCK (bd);
2463 		ce_down (d);
2464 		CE_UNLOCK (bd);
2465 		splx (s);
2466 	}
2467 
2468 	node->flags |= NG_INVALID;
2469 	ng_cutlinks (node);
2470 #ifdef	KLD_MODULE
2471 	ng_unname (node);
2472 	ng_unref (node);
2473 #endif
2474 #endif
2475 	return 0;
2476 }
2477 
2478 static int ng_ce_connect (hook_p hook)
2479 {
2480 #if __FreeBSD_version >= 500000
2481 	drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
2482 #else
2483 	drv_t *d = hook->node->private;
2484 #endif
2485 
2486 	if (d) {
2487 		CE_DEBUG (d, ("Connect\n"));
2488 		callout_reset (&d->timeout_handle, hz, ce_watchdog_timer, d);
2489 	}
2490 
2491 	return 0;
2492 }
2493 
2494 static int ng_ce_disconnect (hook_p hook)
2495 {
2496 #if __FreeBSD_version >= 500000
2497 	drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
2498 #else
2499 	drv_t *d = hook->node->private;
2500 #endif
2501 
2502 	if (d) {
2503 		CE_DEBUG (d, ("Disconnect\n"));
2504 #if __FreeBSD_version >= 500000
2505 		if (NG_HOOK_PRIVATE (hook))
2506 #else
2507 		if (hook->private)
2508 #endif
2509 		{
2510 			bdrv_t *bd = d->board->sys;
2511 			int s = splimp ();
2512 			CE_LOCK (bd);
2513 			ce_down (d);
2514 			CE_UNLOCK (bd);
2515 			splx (s);
2516 		}
2517 		/* If we were wait it than it reasserted now, just stop it. */
2518 		if (!callout_drain (&d->timeout_handle))
2519 			callout_stop (&d->timeout_handle);
2520 	}
2521 	return 0;
2522 }
2523 #endif
2524 
2525 static int ce_modevent (module_t mod, int type, void *unused)
2526 {
2527 #if __FreeBSD_version < 500000
2528 	dev_t dev;
2529 	struct cdevsw *cdsw;
2530 #endif
2531 	static int load_count = 0;
2532 
2533 #if __FreeBSD_version < 500000
2534 	dev = makedev (CDEV_MAJOR, 0);
2535 #endif
2536 
2537 	switch (type) {
2538 	case MOD_LOAD:
2539 #if __FreeBSD_version < 500000
2540 		if (dev != NODEV &&
2541 		    (cdsw = devsw (dev)) &&
2542 		    cdsw->d_maj == CDEV_MAJOR) {
2543 			printf ("Tau32-PCI driver is already in system\n");
2544 			return (ENXIO);
2545 		}
2546 #endif
2547 #if __FreeBSD_version >= 500000 && defined NETGRAPH
2548 		if (ng_newtype (&typestruct))
2549 			printf ("Failed to register ng_ce\n");
2550 #endif
2551 		++load_count;
2552 #if __FreeBSD_version <= 500000
2553 		cdevsw_add (&ce_cdevsw);
2554 #endif
2555 #if __FreeBSD_version >= 500000
2556 		callout_init (&timeout_handle, 1);
2557 #else
2558 		callout_init (&timeout_handle);
2559 #endif
2560 		callout_reset (&timeout_handle, hz*5, ce_timeout, 0);
2561 		break;
2562 	case MOD_UNLOAD:
2563 		if (load_count == 1) {
2564 			printf ("Removing device entry for Tau32-PCI\n");
2565 #if __FreeBSD_version <= 500000
2566 			cdevsw_remove (&ce_cdevsw);
2567 #endif
2568 #if __FreeBSD_version >= 500000 && defined NETGRAPH
2569 			ng_rmtype (&typestruct);
2570 #endif
2571 		}
2572 		/* If we were wait it than it reasserted now, just stop it.
2573 		 * Actually we shouldn't get this condition. But code could be
2574 		 * changed in the future, so just be a litle paranoid.
2575 		 */
2576 		if (!callout_drain (&timeout_handle))
2577 			callout_stop (&timeout_handle);
2578 		--load_count;
2579 		break;
2580 	case MOD_SHUTDOWN:
2581 		break;
2582 	}
2583 	return 0;
2584 }
2585 
2586 #ifdef NETGRAPH
2587 #if __FreeBSD_version >= 502100
2588 static struct ng_type typestruct = {
2589 	.version	= NG_ABI_VERSION,
2590 	.name		= NG_CE_NODE_TYPE,
2591 	.constructor	= ng_ce_constructor,
2592 	.rcvmsg		= ng_ce_rcvmsg,
2593 	.shutdown	= ng_ce_rmnode,
2594 	.newhook	= ng_ce_newhook,
2595 	.connect	= ng_ce_connect,
2596 	.rcvdata	= ng_ce_rcvdata,
2597 	.disconnect	= ng_ce_disconnect,
2598 };
2599 #else /* __FreeBSD_version < 502100 */
2600 static struct ng_type typestruct = {
2601 #if __FreeBSD_version >= 500000
2602 	NG_ABI_VERSION,
2603 #else
2604 	NG_VERSION,
2605 #endif
2606 	NG_CE_NODE_TYPE,
2607 	ce_modevent,
2608 	ng_ce_constructor,
2609 	ng_ce_rcvmsg,
2610 	ng_ce_rmnode,
2611 	ng_ce_newhook,
2612 	NULL,
2613 	ng_ce_connect,
2614 	ng_ce_rcvdata,
2615 #if __FreeBSD_version < 500000
2616 	NULL,
2617 #endif
2618 	ng_ce_disconnect,
2619 	NULL
2620 };
2621 #endif /* __FreeBSD_version < 502100 */
2622 
2623 #endif /*NETGRAPH*/
2624 
2625 #if __FreeBSD_version >= 500000
2626 #ifdef NETGRAPH
2627 MODULE_DEPEND (ng_ce, netgraph, NG_ABI_VERSION, NG_ABI_VERSION, NG_ABI_VERSION);
2628 #else
2629 MODULE_DEPEND (ce, sppp, 1, 1, 1);
2630 #endif
2631 #ifdef KLD_MODULE
2632 DRIVER_MODULE (cemod, pci, ce_driver, ce_devclass, ce_modevent, NULL);
2633 #else
2634 DRIVER_MODULE (ce, pci, ce_driver, ce_devclass, ce_modevent, NULL);
2635 #endif
2636 #else /* if __FreeBSD_version < 500000*/
2637 #ifdef NETGRAPH
2638 DRIVER_MODULE (ce, pci, ce_driver, ce_devclass, ng_mod_event, &typestruct);
2639 #else
2640 DRIVER_MODULE (ce, pci, ce_driver, ce_devclass, ce_modevent, NULL);
2641 #endif
2642 #endif /* __FreeBSD_version < 500000 */
2643 #endif /* NPCI */
2644