2 * Cronyx-Sigma adapter driver for FreeBSD.
3 * Supports PPP/HDLC and Cisco/HDLC protocol in synchronous mode,
4 * and asyncronous channels with full modem control.
5 * Keepalive protocol implemented in both Cisco and PPP modes.
7 * Copyright (C) 1994-2002 Cronyx Engineering.
8 * Author: Serge Vakulenko, <vak@cronyx.ru>
10 * Copyright (C) 1999-2004 Cronyx Engineering.
11 * Rewritten on DDK, ported to NETGRAPH, rewritten for FreeBSD 3.x-5.x by
12 * Kurakin Roman, <rik@cronyx.ru>
14 * This software is distributed with NO WARRANTIES, not even the implied
15 * warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
17 * Authors grant any other persons or organisations a permission to use,
18 * modify and redistribute this software in source and binary forms,
19 * as long as this message is kept with the software, all derivative
20 * works or modified versions.
22 * Cronyx Id: if_cx.c,v 1.1.2.34 2004/06/23 17:09:13 rik Exp $
25 #include <sys/cdefs.h>
26 __FBSDID("$FreeBSD$");
28 #include <sys/param.h>
30 #include <sys/systm.h>
31 #include <sys/kernel.h>
32 #include <sys/module.h>
36 #include <sys/sockio.h>
37 #include <sys/malloc.h>
38 #include <sys/socket.h>
39 #include <sys/sysctl.h>
41 #include <sys/errno.h>
42 #include <sys/serial.h>
45 #include <machine/bus.h>
47 #include <isa/isavar.h>
48 #include <sys/fcntl.h>
49 #include <sys/interrupt.h>
53 #include <machine/cpufunc.h>
54 #include <machine/cserial.h>
55 #include <machine/resource.h>
56 #include <dev/cx/machdep.h>
57 #include <dev/cx/cxddk.h>
58 #include <dev/cx/cronyxfw.h>
59 #include "opt_ng_cronyx.h"
60 #ifdef NETGRAPH_CRONYX
61 # include "opt_netgraph.h"
62 # include <netgraph/ng_message.h>
63 # include <netgraph/netgraph.h>
64 # include <dev/cx/ng_cx.h>
66 # include <net/if_types.h>
67 # include <net/if_sppp.h>
68 # define PP_CISCO IFF_LINK2
74 /* If we don't have Cronyx's sppp version, we don't have fr support via sppp */
79 #define CX_DEBUG(d,s) ({if (d->chan->debug) {\
80 printf ("%s: ", d->name); printf s;}})
81 #define CX_DEBUG2(d,s) ({if (d->chan->debug>1) {\
82 printf ("%s: ", d->name); printf s;}})
84 #define CX_LOCK_NAME "cxX"
86 #define CX_LOCK(_bd) mtx_lock (&(_bd)->cx_mtx)
87 #define CX_UNLOCK(_bd) mtx_unlock (&(_bd)->cx_mtx)
88 #define CX_LOCK_ASSERT(_bd) mtx_assert (&(_bd)->cx_mtx, MA_OWNED)
90 typedef struct _async_q {
97 #define AQ_GSZ(q) ((BF_SZ + (q)->end - (q)->beg)%BF_SZ)
98 #define AQ_PUSH(q,c) {*((q)->buf + (q)->end) = c;\
99 (q)->end = ((q)->end + 1)%BF_SZ;}
100 #define AQ_POP(q,c) {c = *((q)->buf + (q)->beg);\
101 (q)->beg = ((q)->beg + 1)%BF_SZ;}
103 static void cx_identify __P((driver_t *, device_t));
104 static int cx_probe __P((device_t));
105 static int cx_attach __P((device_t));
106 static int cx_detach __P((device_t));
107 static t_open_t cx_topen;
108 static t_modem_t cx_tmodem;
109 static t_close_t cx_tclose;
111 static device_method_t cx_isa_methods [] = {
112 DEVMETHOD(device_identify, cx_identify),
113 DEVMETHOD(device_probe, cx_probe),
114 DEVMETHOD(device_attach, cx_attach),
115 DEVMETHOD(device_detach, cx_detach),
119 typedef struct _cx_dma_mem_t {
127 typedef struct _drv_t {
133 struct callout dcd_timeout_handle;
140 char nodename [NG_NODESIZ];
144 struct ifqueue lo_queue;
145 struct ifqueue hi_queue;
147 struct ifqueue queue;
151 struct callout timeout_handle;
160 typedef struct _bdrv_t {
162 struct resource *base_res;
163 struct resource *drq_res;
164 struct resource *irq_res;
169 drv_t channel [NCHAN];
173 static driver_t cx_isa_driver = {
179 static devclass_t cx_devclass;
181 extern long csigma_fw_len;
182 extern const char *csigma_fw_version;
183 extern const char *csigma_fw_date;
184 extern const char *csigma_fw_copyright;
185 extern const cr_dat_tst_t csigma_fw_tvec[];
186 extern const u_char csigma_fw_data[];
187 static void cx_oproc (struct tty *tp);
188 static int cx_param (struct tty *tp, struct termios *t);
189 static void cx_stop (struct tty *tp, int flag);
190 static void cx_receive (cx_chan_t *c, char *data, int len);
191 static void cx_transmit (cx_chan_t *c, void *attachment, int len);
192 static void cx_error (cx_chan_t *c, int data);
193 static void cx_modem (cx_chan_t *c);
194 static void cx_up (drv_t *d);
195 static void cx_start (drv_t *d);
196 static void cx_softintr (void *);
197 static void *cx_fast_ih;
198 static void cx_down (drv_t *d);
199 static void cx_watchdog (drv_t *d);
200 static void cx_watchdog_timer (void *arg);
201 static void cx_carrier (void *arg);
204 extern struct ng_type typestruct;
206 static void cx_ifstart (struct ifnet *ifp);
207 static void cx_tlf (struct sppp *sp);
208 static void cx_tls (struct sppp *sp);
209 static int cx_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data);
210 static void cx_initialize (void *softc);
213 static cx_board_t *adapter [NCX];
214 static drv_t *channel [NCX*NCHAN];
215 static struct callout led_timo [NCX];
216 static struct callout timeout_handle;
218 static int cx_open (struct cdev *dev, int flag, int mode, struct thread *td);
219 static int cx_close (struct cdev *dev, int flag, int mode, struct thread *td);
220 static int cx_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td);
221 static struct cdevsw cx_cdevsw = {
222 .d_version = D_VERSION,
230 static int MY_SOFT_INTR;
233 * Print the mbuf chain, for debug purposes only.
235 static void printmbuf (struct mbuf *m)
238 for (; m; m=m->m_next) {
239 if (m->m_flags & M_PKTHDR)
240 printf (" HDR %d:", m->m_pkthdr.len);
241 if (m->m_flags & M_EXT)
243 printf (" %d", m->m_len);
249 * Make an mbuf from data.
251 static struct mbuf *makembuf (void *buf, u_int len)
253 struct mbuf *m, *o, *p;
255 MGETHDR (m, M_NOWAIT, MT_DATA);
260 if (len >= MINCLSIZE)
261 MCLGET (m, M_NOWAIT);
263 m->m_pkthdr.len = len;
268 u_int n = M_TRAILINGSPACE (p);
272 /* Allocate new mbuf. */
274 MGET (p, M_NOWAIT, MT_DATA);
279 if (len >= MINCLSIZE)
280 MCLGET (p, M_NOWAIT);
284 n = M_TRAILINGSPACE (p);
288 bcopy (buf, mtod (p, caddr_t) + p->m_len, n);
291 buf = n + (char*) buf;
298 * Recover after lost transmit interrupts.
300 static void cx_timeout (void *arg)
305 for (i = 0; i < NCX; i++) {
306 if (adapter[i] == NULL)
308 for (k = 0; k < NCHAN; ++k) {
309 d = channel[i * NCHAN + k];
313 CX_LOCK ((bdrv_t *)d->board->sys);
314 if (d->atimeout == 1 && d->tty && d->tty->t_state & TS_BUSY) {
315 d->tty->t_state &= ~TS_BUSY;
317 d->intr_action |= CX_WRITE;
319 swi_sched (cx_fast_ih, 0);
321 CX_DEBUG (d, ("cx_timeout\n"));
325 CX_UNLOCK ((bdrv_t *)d->board->sys);
329 callout_reset (&timeout_handle, hz*5, cx_timeout, 0);
332 static void cx_led_off (void *arg)
346 * Activate interrupt handler from DDK.
348 static void cx_intr (void *arg)
351 cx_board_t *b = bd->board;
363 /* Turn LED off 50 msec later. */
364 callout_reset (&led_timo[b->num], hz/20, cx_led_off, b);
369 /* Pass packets in a lock-free state */
370 for (i = 0; i < NCHAN && b->chan[i].type; i++) {
371 drv_t *d = b->chan[i].sys;
373 if (!d || !d->running)
375 while (_IF_QLEN(&d->queue)) {
376 IF_DEQUEUE (&d->queue,m);
379 sppp_input (d->ifp, m);
385 static int probe_irq (cx_board_t *b, int irq)
389 /* Clear pending irq, if any. */
390 cx_probe_irq (b, -irq);
392 for (cnt=0; cnt<5; ++cnt) {
393 /* Get the mask of pending irqs, assuming they are busy.
394 * Activate the adapter on given irq. */
395 busy = cx_probe_irq (b, irq);
398 /* Get the mask of active irqs.
399 * Deactivate our irq. */
400 mask = cx_probe_irq (b, -irq);
402 if ((mask & ~busy) == 1 << irq) {
404 /* printf ("cx%d: irq %d ok, mask=0x%04x, busy=0x%04x\n",
405 b->num, irq, mask, busy); */
409 /* printf ("cx%d: irq %d not functional, mask=0x%04x, busy=0x%04x\n",
410 b->num, irq, mask, busy); */
415 static short porttab [] = {
416 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0,
417 0x300, 0x320, 0x340, 0x360, 0x380, 0x3a0, 0x3c0, 0x3e0, 0
419 static char dmatab [] = { 7, 6, 5, 0 };
420 static char irqtab [] = { 5, 10, 11, 7, 3, 15, 12, 0 };
422 static int cx_is_free_res (device_t dev, int rid, int type, u_long start,
423 u_long end, u_long count)
425 struct resource *res;
427 if (!(res = bus_alloc_resource (dev, type, &rid, start, end, count,
431 bus_release_resource (dev, type, rid, res);
436 static void cx_identify (driver_t *driver, device_t dev)
438 u_long iobase, rescount;
442 devclass_t my_devclass;
445 if ((my_devclass = devclass_find ("cx")) == NULL)
448 devclass_get_devices (my_devclass, &devices, &devcount);
451 /* We should find all devices by our self. We could alter other
452 * devices, but we don't have a choise
454 for (i = 0; (iobase = porttab [i]) != 0; i++) {
455 if (!cx_is_free_res (dev, 0, SYS_RES_IOPORT,
456 iobase, iobase + NPORT, NPORT))
458 if (cx_probe_board (iobase, -1, -1) == 0)
463 child = BUS_ADD_CHILD (dev, ISA_ORDER_SPECULATIVE, "cx",
469 device_set_desc_copy (child, "Cronyx Sigma");
470 device_set_driver (child, driver);
471 bus_set_resource (child, SYS_RES_IOPORT, 0,
478 static short porttab [] = {
479 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0,
480 0x300, 0x320, 0x340, 0x360, 0x380, 0x3a0, 0x3c0, 0x3e0, 0
482 /* Lets check user choise.
484 for (k = 0; k < devcount; k++) {
485 if (bus_get_resource (devices[k], SYS_RES_IOPORT, 0,
486 &iobase, &rescount) != 0)
489 for (i = 0; porttab [i] != 0; i++) {
490 if (porttab [i] != iobase)
492 if (!cx_is_free_res (devices[k], 0, SYS_RES_IOPORT,
493 iobase, iobase + NPORT, NPORT))
495 if (cx_probe_board (iobase, -1, -1) == 0)
498 device_set_desc_copy (devices[k], "Cronyx Sigma");
502 if (porttab [i] == 0) {
503 device_delete_child (
504 device_get_parent (devices[k]),
510 for (k = 0; k < devcount; k++) {
513 if (bus_get_resource (devices[k], SYS_RES_IOPORT, 0,
514 &iobase, &rescount) == 0)
516 for (i = 0; (iobase = porttab [i]) != 0; i++) {
517 if (porttab [i] == -1) {
520 if (!cx_is_free_res (devices[k], 0, SYS_RES_IOPORT,
521 iobase, iobase + NPORT, NPORT))
523 if (cx_probe_board (iobase, -1, -1) == 0)
526 bus_set_resource (devices[k], SYS_RES_IOPORT, 0,
529 device_set_desc_copy (devices[k], "Cronyx Sigma");
532 if (porttab [i] == 0) {
533 device_delete_child (
534 device_get_parent (devices[k]),
538 free (devices, M_TEMP);
544 static int cx_probe (device_t dev)
546 int unit = device_get_unit (dev);
548 u_long iobase, rescount;
550 if (!device_get_desc (dev) ||
551 strcmp (device_get_desc (dev), "Cronyx Sigma"))
554 if (bus_get_resource (dev, SYS_RES_IOPORT, 0, &iobase, &rescount) != 0) {
555 printf ("cx%d: Couldn't get IOPORT\n", unit);
559 if (!cx_is_free_res (dev, 0, SYS_RES_IOPORT,
560 iobase, iobase + NPORT, NPORT)) {
561 printf ("cx%d: Resource IOPORT isn't free %lx\n", unit, iobase);
565 for (i = 0; porttab [i] != 0; i++) {
566 if (porttab [i] == iobase) {
572 if (porttab [i] == 0) {
576 if (!cx_probe_board (iobase, -1, -1)) {
577 printf ("cx%d: probing for Sigma at %lx faild\n", unit, iobase);
585 cx_bus_dmamap_addr (void *arg, bus_dma_segment_t *segs, int nseg, int error)
592 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
594 *addr = segs->ds_addr;
598 cx_bus_dma_mem_alloc (int bnum, int cnum, cx_dma_mem_t *dmem)
602 error = bus_dma_tag_create (NULL, 16, 0, BUS_SPACE_MAXADDR_24BIT,
603 BUS_SPACE_MAXADDR, NULL, NULL, dmem->size, 1,
604 dmem->size, 0, NULL, NULL, &dmem->dmat);
606 if (cnum >= 0) printf ("cx%d-%d: ", bnum, cnum);
607 else printf ("cx%d: ", bnum);
608 printf ("couldn't allocate tag for dma memory\n");
611 error = bus_dmamem_alloc (dmem->dmat, (void **)&dmem->virt,
612 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &dmem->mapp);
614 if (cnum >= 0) printf ("cx%d-%d: ", bnum, cnum);
615 else printf ("cx%d: ", bnum);
616 printf ("couldn't allocate mem for dma memory\n");
617 bus_dma_tag_destroy (dmem->dmat);
620 error = bus_dmamap_load (dmem->dmat, dmem->mapp, dmem->virt,
621 dmem->size, cx_bus_dmamap_addr, &dmem->phys, 0);
623 if (cnum >= 0) printf ("cx%d-%d: ", bnum, cnum);
624 else printf ("cx%d: ", bnum);
625 printf ("couldn't load mem map for dma memory\n");
626 bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp);
627 bus_dma_tag_destroy (dmem->dmat);
634 cx_bus_dma_mem_free (cx_dma_mem_t *dmem)
636 bus_dmamap_unload (dmem->dmat, dmem->mapp);
637 bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp);
638 bus_dma_tag_destroy (dmem->dmat);
642 * The adapter is present, initialize the driver structures.
644 static int cx_attach (device_t dev)
646 bdrv_t *bd = device_get_softc (dev);
647 u_long iobase, drq, irq, rescount;
648 int unit = device_get_unit (dev);
649 char *cx_ln = CX_LOCK_NAME;
656 KASSERT ((bd != NULL), ("cx%d: NULL device softc\n", unit));
658 bus_get_resource (dev, SYS_RES_IOPORT, 0, &iobase, &rescount);
660 bd->base_res = bus_alloc_resource (dev, SYS_RES_IOPORT, &bd->base_rid,
661 iobase, iobase + NPORT, NPORT, RF_ACTIVE);
662 if (! bd->base_res) {
663 printf ("cx%d: cannot allocate base address\n", unit);
667 if (bus_get_resource (dev, SYS_RES_DRQ, 0, &drq, &rescount) != 0) {
668 for (i = 0; (drq = dmatab [i]) != 0; i++) {
669 if (!cx_is_free_res (dev, 0, SYS_RES_DRQ,
672 bus_set_resource (dev, SYS_RES_DRQ, 0, drq, 1);
676 if (dmatab[i] == 0) {
677 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid,
679 printf ("cx%d: Couldn't get DRQ\n", unit);
685 bd->drq_res = bus_alloc_resource (dev, SYS_RES_DRQ, &bd->drq_rid,
686 drq, drq + 1, 1, RF_ACTIVE);
688 printf ("cx%d: cannot allocate drq\n", unit);
689 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid,
694 if (bus_get_resource (dev, SYS_RES_IRQ, 0, &irq, &rescount) != 0) {
695 for (i = 0; (irq = irqtab [i]) != 0; i++) {
696 if (!cx_is_free_res (dev, 0, SYS_RES_IRQ,
699 bus_set_resource (dev, SYS_RES_IRQ, 0, irq, 1);
703 if (irqtab[i] == 0) {
704 bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid,
706 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid,
708 printf ("cx%d: Couldn't get IRQ\n", unit);
714 bd->irq_res = bus_alloc_resource (dev, SYS_RES_IRQ, &bd->irq_rid,
715 irq, irq + 1, 1, RF_ACTIVE);
717 printf ("cx%d: Couldn't allocate irq\n", unit);
718 bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid,
720 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid,
725 b = malloc (sizeof (cx_board_t), M_DEVBUF, M_WAITOK);
727 printf ("cx:%d: Couldn't allocate memory\n", unit);
731 bzero (b, sizeof(cx_board_t));
733 if (! cx_open_board (b, unit, iobase, irq, drq)) {
734 printf ("cx%d: error loading firmware\n", unit);
736 bus_release_resource (dev, SYS_RES_IRQ, bd->irq_rid,
738 bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid,
740 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid,
747 cx_ln[2] = '0' + unit;
748 mtx_init (&bd->cx_mtx, cx_ln, MTX_NETWORK_LOCK, MTX_DEF|MTX_RECURSE);
749 if (! probe_irq (b, irq)) {
750 printf ("cx%d: irq %ld not functional\n", unit, irq);
753 mtx_destroy (&bd->cx_mtx);
755 bus_release_resource (dev, SYS_RES_IRQ, bd->irq_rid,
757 bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid,
759 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid,
764 callout_init (&led_timo[b->num], CALLOUT_MPSAFE);
766 if (bus_setup_intr (dev, bd->irq_res,
767 INTR_TYPE_NET|INTR_MPSAFE,
768 NULL, cx_intr, bd, &bd->intrhand)) {
769 printf ("cx%d: Can't setup irq %ld\n", unit, irq);
773 mtx_destroy (&bd->cx_mtx);
775 bus_release_resource (dev, SYS_RES_IRQ, bd->irq_rid,
777 bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid,
779 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid,
786 cx_init (b, b->num, b->port, irq, drq);
787 cx_setup_board (b, 0, 0, 0);
790 printf ("cx%d: <Cronyx-Sigma-%s>\n", b->num, b->name);
792 for (c=b->chan; c<b->chan+NCHAN; ++c) {
793 if (c->type == T_NONE)
795 d = &bd->channel[c->num];
796 d->dmamem.size = sizeof(cx_buf_t);
797 if (! cx_bus_dma_mem_alloc (unit, c->num, &d->dmamem))
803 channel [b->num*NCHAN + c->num] = d;
804 sprintf (d->name, "cx%d.%d", b->num, c->num);
814 callout_init (&d->timeout_handle, CALLOUT_MPSAFE);
816 if (ng_make_node_common (&typestruct, &d->node) != 0) {
817 printf ("%s: cannot make common node\n", d->name);
818 channel [b->num*NCHAN + c->num] = 0;
820 cx_bus_dma_mem_free (&d->dmamem);
823 NG_NODE_SET_PRIVATE (d->node, d);
824 sprintf (d->nodename, "%s%d", NG_CX_NODE_TYPE,
825 c->board->num*NCHAN + c->num);
826 if (ng_name_node (d->node, d->nodename)) {
827 printf ("%s: cannot name node\n", d->nodename);
828 NG_NODE_UNREF (d->node);
829 channel [b->num*NCHAN + c->num] = 0;
831 cx_bus_dma_mem_free (&d->dmamem);
834 d->lo_queue.ifq_maxlen = ifqmaxlen;
835 d->hi_queue.ifq_maxlen = ifqmaxlen;
836 mtx_init (&d->lo_queue.ifq_mtx, "cx_queue_lo", NULL, MTX_DEF);
837 mtx_init (&d->hi_queue.ifq_mtx, "cx_queue_hi", NULL, MTX_DEF);
839 d->ifp = if_alloc(IFT_PPP);
840 if (d->ifp == NULL) {
841 printf ("%s: cannot if_alloc() common interface\n",
843 channel [b->num*NCHAN + c->num] = 0;
845 cx_bus_dma_mem_free (&d->dmamem);
848 d->ifp->if_softc = d;
849 if_initname (d->ifp, "cx", b->num * NCHAN + c->num);
850 d->ifp->if_mtu = PP_MTU;
851 d->ifp->if_flags = IFF_POINTOPOINT | IFF_MULTICAST;
852 d->ifp->if_ioctl = cx_sioctl;
853 d->ifp->if_start = cx_ifstart;
854 d->ifp->if_init = cx_initialize;
855 d->queue.ifq_maxlen = 2;
856 mtx_init (&d->queue.ifq_mtx, "cx_queue", NULL, MTX_DEF);
857 sppp_attach (d->ifp);
859 IFP2SP(d->ifp)->pp_tlf = cx_tlf;
860 IFP2SP(d->ifp)->pp_tls = cx_tls;
861 /* If BPF is in the kernel, call the attach for it.
862 * Size of PPP header is 4 bytes. */
863 bpfattach (d->ifp, DLT_PPP, 4);
866 d->tty = ttyalloc ();
867 d->tty->t_open = cx_topen;
868 d->tty->t_close = cx_tclose;
869 d->tty->t_param = cx_param;
870 d->tty->t_stop = cx_stop;
871 d->tty->t_modem = cx_tmodem;
872 d->tty->t_oproc = cx_oproc;
875 cx_start_chan (c, d->dmamem.virt, d->dmamem.phys);
876 cx_register_receive (c, &cx_receive);
877 cx_register_transmit (c, &cx_transmit);
878 cx_register_error (c, &cx_error);
879 cx_register_modem (c, &cx_modem);
882 ttycreate(d->tty, TS_CALLOUT, "x%r%r", b->num, c->num);
883 d->devt = make_dev (&cx_cdevsw, b->num*NCHAN + c->num + 64, UID_ROOT, GID_WHEEL, 0600, "cx%d", b->num*NCHAN + c->num);
884 d->devt->si_drv1 = d;
885 callout_init (&d->dcd_timeout_handle, CALLOUT_MPSAFE);
892 static int cx_detach (device_t dev)
894 bdrv_t *bd = device_get_softc (dev);
895 cx_board_t *b = bd->board;
899 KASSERT (mtx_initialized (&bd->cx_mtx), ("cx mutex not initialized"));
903 /* Check if the device is busy (open). */
904 for (c = b->chan; c < b->chan + NCHAN; ++c) {
905 drv_t *d = (drv_t*) c->sys;
907 if (!d || d->chan->type == T_NONE)
914 if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) &&
927 /* Deactivate the timeout routine. And soft interrupt*/
928 callout_stop (&led_timo[b->num]);
930 for (c = b->chan; c < b->chan + NCHAN; ++c) {
933 if (!d || d->chan->type == T_NONE)
936 callout_stop (&d->dcd_timeout_handle);
939 bus_teardown_intr (dev, bd->irq_res, bd->intrhand);
940 bus_release_resource (dev, SYS_RES_IRQ, bd->irq_rid, bd->irq_res);
942 bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid, bd->drq_res);
944 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, bd->base_res);
949 /* Detach the interfaces, free buffer memory. */
950 for (c = b->chan; c < b->chan + NCHAN; ++c) {
951 drv_t *d = (drv_t*) c->sys;
953 if (!d || d->chan->type == T_NONE)
961 callout_stop (&d->timeout_handle);
964 ng_rmnode_self (d->node);
965 NG_NODE_UNREF (d->node);
968 mtx_destroy (&d->lo_queue.ifq_mtx);
969 mtx_destroy (&d->hi_queue.ifq_mtx);
971 /* Detach from the packet filter list of interfaces. */
973 /* Detach from the sync PPP list. */
974 sppp_detach (d->ifp);
978 /* XXXRIK: check interconnection with irq handler */
979 IF_DRAIN (&d->queue);
980 mtx_destroy (&d->queue.ifq_mtx);
982 destroy_dev (d->devt);
987 callout_drain (&led_timo[b->num]);
988 for (c = b->chan; c < b->chan + NCHAN; ++c) {
991 if (!d || d->chan->type == T_NONE)
994 callout_drain (&d->dcd_timeout_handle);
995 callout_drain (&d->timeout_handle);
1000 for (c = b->chan; c < b->chan + NCHAN; ++c) {
1001 drv_t *d = (drv_t*) c->sys;
1003 if (!d || d->chan->type == T_NONE)
1006 /* Deallocate buffers. */
1007 cx_bus_dma_mem_free (&d->dmamem);
1010 adapter [b->num] = 0;
1014 mtx_destroy (&bd->cx_mtx);
1020 static void cx_ifstart (struct ifnet *ifp)
1022 drv_t *d = ifp->if_softc;
1023 bdrv_t *bd = d->board->sys;
1030 static void cx_tlf (struct sppp *sp)
1032 drv_t *d = SP2IFP(sp)->if_softc;
1034 CX_DEBUG (d, ("cx_tlf\n"));
1035 /* cx_set_dtr (d->chan, 0);*/
1036 /* cx_set_rts (d->chan, 0);*/
1037 if (!(IFP2SP(d->ifp)->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO))
1041 static void cx_tls (struct sppp *sp)
1043 drv_t *d = SP2IFP(sp)->if_softc;
1045 CX_DEBUG (d, ("cx_tls\n"));
1046 if (!(IFP2SP(d->ifp)->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO))
1051 * Initialization of interface.
1052 * It seems to be never called by upper level.
1054 static void cx_initialize (void *softc)
1058 CX_DEBUG (d, ("cx_initialize\n"));
1062 * Process an ioctl request.
1064 static int cx_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data)
1066 drv_t *d = ifp->if_softc;
1067 bdrv_t *bd = d->board->sys;
1068 int error, s, was_up, should_be_up;
1070 /* No socket ioctls while the channel is in async mode. */
1071 if (d->chan->type == T_NONE || d->chan->mode == M_ASYNC)
1074 /* Socket ioctls on slave subchannels are not allowed. */
1075 was_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
1076 error = sppp_ioctl (ifp, cmd, data);
1082 if (! (ifp->if_flags & IFF_DEBUG))
1085 d->chan->debug = d->chan->debug_shadow;
1090 default: CX_DEBUG2 (d, ("ioctl 0x%lx\n", cmd)); return 0;
1091 case SIOCADDMULTI: CX_DEBUG2 (d, ("SIOCADDMULTI\n")); return 0;
1092 case SIOCDELMULTI: CX_DEBUG2 (d, ("SIOCDELMULTI\n")); return 0;
1093 case SIOCSIFFLAGS: CX_DEBUG2 (d, ("SIOCSIFFLAGS\n")); break;
1094 case SIOCSIFADDR: CX_DEBUG2 (d, ("SIOCSIFADDR\n")); break;
1097 /* We get here only in case of SIFFLAGS or SIFADDR. */
1100 should_be_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
1101 if (!was_up && should_be_up) {
1102 /* Interface goes up -- start it. */
1105 } else if (was_up && !should_be_up) {
1106 /* Interface is going down -- stop it. */
1107 /* if ((IFP2SP(d->ifp)->pp_flags & PP_FR) || (ifp->if_flags & PP_CISCO))*/
1117 * Stop the interface. Called on splimp().
1119 static void cx_down (drv_t *d)
1122 CX_DEBUG (d, ("cx_down\n"));
1123 cx_set_dtr (d->chan, 0);
1124 cx_set_rts (d->chan, 0);
1126 callout_stop (&d->timeout_handle);
1131 * Start the interface. Called on splimp().
1133 static void cx_up (drv_t *d)
1136 CX_DEBUG (d, ("cx_up\n"));
1137 cx_set_dtr (d->chan, 1);
1138 cx_set_rts (d->chan, 1);
1144 * Start output on the (slave) interface. Get another datagram to send
1145 * off of the interface queue, and copy it to the interface
1146 * before starting the output.
1148 static void cx_send (drv_t *d)
1153 CX_DEBUG2 (d, ("cx_send\n"));
1155 /* No output if the interface is down. */
1159 /* No output if the modem is off. */
1160 if (! cx_get_dsr (d->chan) && ! cx_get_loop(d->chan))
1163 if (cx_buf_free (d->chan)) {
1164 /* Get the packet to send. */
1166 IF_DEQUEUE (&d->hi_queue, m);
1168 IF_DEQUEUE (&d->lo_queue, m);
1170 m = sppp_dequeue (d->ifp);
1175 BPF_MTAP (d->ifp, m);
1177 len = m_length (m, NULL);
1179 cx_send_packet (d->chan, (u_char*)mtod (m, caddr_t),
1182 u_char buf [DMABUFSZ];
1183 m_copydata (m, 0, len, buf);
1184 cx_send_packet (d->chan, buf, len, 0);
1188 /* Set up transmit timeout, 10 seconds. */
1192 d->ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1197 * Start output on the interface.
1198 * Always called on splimp().
1200 static void cx_start (drv_t *d)
1205 cx_set_dtr (d->chan, 1);
1207 cx_set_rts (d->chan, 1);
1209 callout_reset (&d->timeout_handle, hz, cx_watchdog_timer, d);
1215 * Handle transmit timeouts.
1216 * Recover after lost transmit interrupts.
1217 * Always called on splimp().
1219 static void cx_watchdog (drv_t *d)
1222 CX_DEBUG (d, ("device timeout\n"));
1224 cx_setup_chan (d->chan);
1225 cx_start_chan (d->chan, 0, 0);
1226 cx_set_dtr (d->chan, 1);
1227 cx_set_rts (d->chan, 1);
1232 static void cx_watchdog_timer (void *arg)
1235 bdrv_t *bd = d->board->sys;
1238 if (d->timeout == 1)
1242 callout_reset (&d->timeout_handle, hz, cx_watchdog_timer, d);
1247 * Transmit callback function.
1249 static void cx_transmit (cx_chan_t *c, void *attachment, int len)
1256 if (c->mode == M_ASYNC && d->tty) {
1257 d->tty->t_state &= ~(TS_BUSY | TS_FLUSH);
1259 if (d->tty->t_dev) {
1260 d->intr_action |= CX_WRITE;
1262 swi_sched (cx_fast_ih, 0);
1268 ++d->ifp->if_opackets;
1269 d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1275 * Process the received packet.
1277 static void cx_receive (cx_chan_t *c, char *data, int len)
1289 if (c->mode == M_ASYNC && d->tty) {
1290 if (d->tty->t_state & TS_ISOPEN) {
1291 async_q *q = &d->aqueue;
1292 int size = BF_SZ - 1 - AQ_GSZ (q);
1294 if (len <= 0 && !size)
1299 cx_error (c, CX_OVERRUN);
1304 AQ_PUSH (q, *(unsigned char *)cc);
1308 d->intr_action |= CX_READ;
1310 swi_sched (cx_fast_ih, 0);
1317 m = makembuf (data, len);
1319 CX_DEBUG (d, ("no memory for packet\n"));
1321 ++d->ifp->if_iqdrops;
1328 m->m_pkthdr.rcvif = 0;
1329 NG_SEND_DATA_ONLY (error, d->hook, m);
1331 ++d->ifp->if_ipackets;
1332 m->m_pkthdr.rcvif = d->ifp;
1333 /* Check if there's a BPF listener on this interface.
1334 * If so, hand off the raw packet to bpf. */
1335 BPF_TAP (d->ifp, data, len);
1336 IF_ENQUEUE (&d->queue, m);
1340 #define CONDITION(t,tp) (!(t->c_iflag & (ICRNL | IGNCR | IMAXBEL | INLCR | ISTRIP | IXON))\
1341 && (!(tp->t_iflag & BRKINT) || (tp->t_iflag & IGNBRK))\
1342 && (!(tp->t_iflag & PARMRK)\
1343 || (tp->t_iflag & (IGNPAR | IGNBRK)) == (IGNPAR | IGNBRK))\
1344 && !(t->c_lflag & (ECHO | ICANON | IEXTEN | ISIG | PENDIN))\
1345 && linesw[tp->t_line]->l_rint == ttyinput)
1348 * Error callback function.
1350 static void cx_error (cx_chan_t *c, int data)
1362 CX_DEBUG (d, ("frame error\n"));
1363 if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN)
1364 && (AQ_GSZ (q) < BF_SZ - 1)
1365 && (!CONDITION((&d->tty->t_termios), (d->tty))
1366 || !(d->tty->t_iflag & (IGNPAR | PARMRK)))) {
1367 AQ_PUSH (q, TTY_FE);
1368 d->intr_action |= CX_READ;
1370 swi_sched (cx_fast_ih, 0);
1374 ++d->ifp->if_ierrors;
1378 CX_DEBUG (d, ("crc error\n"));
1379 if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN)
1380 && (AQ_GSZ (q) < BF_SZ - 1)
1381 && (!CONDITION((&d->tty->t_termios), (d->tty))
1382 || !(d->tty->t_iflag & INPCK)
1383 || !(d->tty->t_iflag & (IGNPAR | PARMRK)))) {
1384 AQ_PUSH (q, TTY_PE);
1385 d->intr_action |= CX_READ;
1387 swi_sched (cx_fast_ih, 0);
1391 ++d->ifp->if_ierrors;
1395 CX_DEBUG (d, ("overrun error\n"));
1397 if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN)
1398 && (AQ_GSZ (q) < BF_SZ - 1)
1399 && (!CONDITION((&d->tty->t_termios), (d->tty)))) {
1400 AQ_PUSH (q, TTY_OE);
1401 d->intr_action |= CX_READ;
1403 swi_sched (cx_fast_ih, 0);
1408 ++d->ifp->if_collisions;
1409 ++d->ifp->if_ierrors;
1414 CX_DEBUG (d, ("overflow error\n"));
1416 if (c->mode != M_ASYNC)
1417 ++d->ifp->if_ierrors;
1421 CX_DEBUG (d, ("underrun error\n"));
1422 if (c->mode != M_ASYNC) {
1425 ++d->ifp->if_oerrors;
1426 d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1432 CX_DEBUG (d, ("break error\n"));
1433 if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN)
1434 && (AQ_GSZ (q) < BF_SZ - 1)
1435 && (!CONDITION((&d->tty->t_termios), (d->tty))
1436 || !(d->tty->t_iflag & (IGNBRK | BRKINT | PARMRK)))) {
1437 AQ_PUSH (q, TTY_BI);
1438 d->intr_action |= CX_READ;
1440 swi_sched (cx_fast_ih, 0);
1444 ++d->ifp->if_ierrors;
1448 CX_DEBUG (d, ("error #%d\n", data));
1452 static int cx_topen (struct tty *tp, struct cdev *dev)
1458 CX_DEBUG2 (d, ("cx_open (serial)\n"));
1462 if (d->chan->mode != M_ASYNC)
1467 cx_start_chan (d->chan, 0, 0);
1468 cx_set_dtr (d->chan, 1);
1469 cx_set_rts (d->chan, 1);
1470 d->cd = cx_get_cd (d->chan);
1473 CX_DEBUG2 (d, ("cx_open done\n"));
1478 static void cx_tclose (struct tty *tp)
1484 CX_DEBUG2 (d, ("cx_close\n"));
1487 /* Disable receiver.
1488 * Transmitter continues sending the queued data. */
1489 cx_enable_receive (d->chan, 0);
1491 d->open_dev &= ~0x2;
1494 static int cx_tmodem (struct tty *tp, int sigon, int sigoff)
1503 if (!sigon && !sigoff) {
1504 if (cx_get_dsr (d->chan)) sigon |= SER_DSR;
1505 if (cx_get_cd (d->chan)) sigon |= SER_DCD;
1506 if (cx_get_cts (d->chan)) sigon |= SER_CTS;
1507 if (d->chan->dtr) sigon |= SER_DTR;
1508 if (d->chan->rts) sigon |= SER_RTS;
1513 if (sigon & SER_DTR)
1514 cx_set_dtr (d->chan, 1);
1515 if (sigoff & SER_DTR)
1516 cx_set_dtr (d->chan, 0);
1517 if (sigon & SER_RTS)
1518 cx_set_rts (d->chan, 1);
1519 if (sigoff & SER_RTS)
1520 cx_set_rts (d->chan, 0);
1526 static int cx_open (struct cdev *dev, int flag, int mode, struct thread *td)
1532 unit = d->chan->num;
1534 CX_DEBUG2 (d, ("cx_open unit=%d, flag=0x%x, mode=0x%x\n",
1539 CX_DEBUG2 (d, ("cx_open done\n"));
1544 static int cx_close (struct cdev *dev, int flag, int mode, struct thread *td)
1549 CX_DEBUG2 (d, ("cx_close\n"));
1550 d->open_dev &= ~0x1;
1554 static int cx_modem_status (drv_t *d)
1556 bdrv_t *bd = d->board->sys;
1557 int status = 0, s = splhigh ();
1559 /* Already opened by someone or network interface is up? */
1560 if ((d->chan->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) &&
1561 (d->open_dev|0x2)) || (d->chan->mode != M_ASYNC && d->running))
1562 status = TIOCM_LE; /* always enabled while open */
1564 if (cx_get_dsr (d->chan)) status |= TIOCM_DSR;
1565 if (cx_get_cd (d->chan)) status |= TIOCM_CD;
1566 if (cx_get_cts (d->chan)) status |= TIOCM_CTS;
1567 if (d->chan->dtr) status |= TIOCM_DTR;
1568 if (d->chan->rts) status |= TIOCM_RTS;
1574 static int cx_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
1579 struct serial_statistics *st;
1589 case SERIAL_GETREGISTERED:
1590 CX_DEBUG2 (d, ("ioctl: getregistered\n"));
1591 bzero (mask, sizeof(mask));
1592 for (s=0; s<NCX*NCHAN; ++s)
1594 mask [s/8] |= 1 << (s & 7);
1595 bcopy (mask, data, sizeof (mask));
1598 case SERIAL_GETPORT:
1599 CX_DEBUG2 (d, ("ioctl: getport\n"));
1602 *(int *)data = cx_get_port (c);
1610 case SERIAL_SETPORT:
1611 CX_DEBUG2 (d, ("ioctl: setproto\n"));
1612 /* Only for superuser! */
1613 error = priv_check (td, PRIV_DRIVER);
1619 cx_set_port (c, *(int *)data);
1625 case SERIAL_GETPROTO:
1626 CX_DEBUG2 (d, ("ioctl: getproto\n"));
1629 strcpy ((char*)data, (c->mode == M_ASYNC) ? "async" :
1630 (IFP2SP(d->ifp)->pp_flags & PP_FR) ? "fr" :
1631 (d->ifp->if_flags & PP_CISCO) ? "cisco" : "ppp");
1636 case SERIAL_SETPROTO:
1637 CX_DEBUG2 (d, ("ioctl: setproto\n"));
1638 /* Only for superuser! */
1639 error = priv_check (td, PRIV_DRIVER);
1642 if (c->mode == M_ASYNC)
1644 if (d->ifp->if_drv_flags & IFF_DRV_RUNNING)
1646 if (! strcmp ("cisco", (char*)data)) {
1647 IFP2SP(d->ifp)->pp_flags &= ~(PP_FR);
1648 IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
1649 d->ifp->if_flags |= PP_CISCO;
1650 } else if (! strcmp ("fr", (char*)data)) {
1651 d->ifp->if_flags &= ~(PP_CISCO);
1652 IFP2SP(d->ifp)->pp_flags |= PP_FR | PP_KEEPALIVE;
1653 } else if (! strcmp ("ppp", (char*)data)) {
1654 IFP2SP(d->ifp)->pp_flags &= ~(PP_FR | PP_KEEPALIVE);
1655 d->ifp->if_flags &= ~(PP_CISCO);
1660 case SERIAL_GETKEEPALIVE:
1661 CX_DEBUG2 (d, ("ioctl: getkeepalive\n"));
1662 if ((IFP2SP(d->ifp)->pp_flags & PP_FR) ||
1663 (d->ifp->if_flags & PP_CISCO) ||
1664 (c->mode == M_ASYNC))
1668 *(int*)data = (IFP2SP(d->ifp)->pp_flags & PP_KEEPALIVE) ? 1 : 0;
1673 case SERIAL_SETKEEPALIVE:
1674 CX_DEBUG2 (d, ("ioctl: setkeepalive\n"));
1675 /* Only for superuser! */
1676 error = priv_check (td, PRIV_DRIVER);
1679 if ((IFP2SP(d->ifp)->pp_flags & PP_FR) ||
1680 (d->ifp->if_flags & PP_CISCO))
1685 IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
1687 IFP2SP(d->ifp)->pp_flags &= ~PP_KEEPALIVE;
1693 case SERIAL_GETMODE:
1694 CX_DEBUG2 (d, ("ioctl: getmode\n"));
1697 *(int*)data = (c->mode == M_ASYNC) ?
1698 SERIAL_ASYNC : SERIAL_HDLC;
1703 case SERIAL_SETMODE:
1704 CX_DEBUG2 (d, ("ioctl: setmode\n"));
1705 /* Only for superuser! */
1706 error = priv_check (td, PRIV_DRIVER);
1710 /* Somebody is waiting for carrier? */
1713 /* /dev/ttyXX is already opened by someone? */
1714 if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) &&
1717 /* Network interface is up?
1718 * Cannot change to async mode. */
1719 if (c->mode != M_ASYNC && d->running &&
1720 (*(int*)data == SERIAL_ASYNC))
1725 if (c->mode == M_HDLC && *(int*)data == SERIAL_ASYNC) {
1726 cx_set_mode (c, M_ASYNC);
1727 cx_enable_receive (c, 0);
1728 cx_enable_transmit (c, 0);
1729 } else if (c->mode == M_ASYNC && *(int*)data == SERIAL_HDLC) {
1730 if (d->ifp->if_flags & IFF_DEBUG)
1731 c->debug = c->debug_shadow;
1732 cx_set_mode (c, M_HDLC);
1733 cx_enable_receive (c, 1);
1734 cx_enable_transmit (c, 1);
1740 case SERIAL_GETSTAT:
1741 CX_DEBUG2 (d, ("ioctl: getestat\n"));
1742 st = (struct serial_statistics*) data;
1745 st->rintr = c->rintr;
1746 st->tintr = c->tintr;
1747 st->mintr = c->mintr;
1748 st->ibytes = c->ibytes;
1749 st->ipkts = c->ipkts;
1750 st->ierrs = c->ierrs;
1751 st->obytes = c->obytes;
1752 st->opkts = c->opkts;
1753 st->oerrs = c->oerrs;
1758 case SERIAL_CLRSTAT:
1759 CX_DEBUG2 (d, ("ioctl: clrstat\n"));
1760 /* Only for superuser! */
1761 error = priv_check (td, PRIV_DRIVER);
1779 case SERIAL_GETBAUD:
1780 CX_DEBUG2 (d, ("ioctl: getbaud\n"));
1781 if (c->mode == M_ASYNC)
1785 *(long*)data = cx_get_baud(c);
1790 case SERIAL_SETBAUD:
1791 CX_DEBUG2 (d, ("ioctl: setbaud\n"));
1792 /* Only for superuser! */
1793 error = priv_check (td, PRIV_DRIVER);
1796 if (c->mode == M_ASYNC)
1800 cx_set_baud (c, *(long*)data);
1805 case SERIAL_GETLOOP:
1806 CX_DEBUG2 (d, ("ioctl: getloop\n"));
1807 if (c->mode == M_ASYNC)
1811 *(int*)data = cx_get_loop (c);
1816 case SERIAL_SETLOOP:
1817 CX_DEBUG2 (d, ("ioctl: setloop\n"));
1818 /* Only for superuser! */
1819 error = priv_check (td, PRIV_DRIVER);
1822 if (c->mode == M_ASYNC)
1826 cx_set_loop (c, *(int*)data);
1831 case SERIAL_GETDPLL:
1832 CX_DEBUG2 (d, ("ioctl: getdpll\n"));
1833 if (c->mode == M_ASYNC)
1837 *(int*)data = cx_get_dpll (c);
1842 case SERIAL_SETDPLL:
1843 CX_DEBUG2 (d, ("ioctl: setdpll\n"));
1844 /* Only for superuser! */
1845 error = priv_check (td, PRIV_DRIVER);
1848 if (c->mode == M_ASYNC)
1852 cx_set_dpll (c, *(int*)data);
1857 case SERIAL_GETNRZI:
1858 CX_DEBUG2 (d, ("ioctl: getnrzi\n"));
1859 if (c->mode == M_ASYNC)
1863 *(int*)data = cx_get_nrzi (c);
1868 case SERIAL_SETNRZI:
1869 CX_DEBUG2 (d, ("ioctl: setnrzi\n"));
1870 /* Only for superuser! */
1871 error = priv_check (td, PRIV_DRIVER);
1874 if (c->mode == M_ASYNC)
1878 cx_set_nrzi (c, *(int*)data);
1883 case SERIAL_GETDEBUG:
1884 CX_DEBUG2 (d, ("ioctl: getdebug\n"));
1887 *(int*)data = c->debug;
1892 case SERIAL_SETDEBUG:
1893 CX_DEBUG2 (d, ("ioctl: setdebug\n"));
1894 /* Only for superuser! */
1895 error = priv_check (td, PRIV_DRIVER);
1901 if (c->mode == M_ASYNC) {
1902 c->debug = *(int*)data;
1905 * The debug_shadow is always greater than zero for
1906 * logic simplicity. For switching debug off the
1907 * IFF_DEBUG is responsible (for !M_ASYNC mode).
1909 c->debug_shadow = (*(int*)data) ? (*(int*)data) : 1;
1910 if (d->ifp->if_flags & IFF_DEBUG)
1911 c->debug = c->debug_shadow;
1914 c->debug = *(int*)data;
1922 case TIOCSDTR: /* Set DTR */
1923 CX_DEBUG2 (d, ("ioctl: tiocsdtr\n"));
1931 case TIOCCDTR: /* Clear DTR */
1932 CX_DEBUG2 (d, ("ioctl: tioccdtr\n"));
1940 case TIOCMSET: /* Set DTR/RTS */
1941 CX_DEBUG2 (d, ("ioctl: tiocmset\n"));
1944 cx_set_dtr (c, (*(int*)data & TIOCM_DTR) ? 1 : 0);
1945 cx_set_rts (c, (*(int*)data & TIOCM_RTS) ? 1 : 0);
1950 case TIOCMBIS: /* Add DTR/RTS */
1951 CX_DEBUG2 (d, ("ioctl: tiocmbis\n"));
1954 if (*(int*)data & TIOCM_DTR) cx_set_dtr (c, 1);
1955 if (*(int*)data & TIOCM_RTS) cx_set_rts (c, 1);
1960 case TIOCMBIC: /* Clear DTR/RTS */
1961 CX_DEBUG2 (d, ("ioctl: tiocmbic\n"));
1964 if (*(int*)data & TIOCM_DTR) cx_set_dtr (c, 0);
1965 if (*(int*)data & TIOCM_RTS) cx_set_rts (c, 0);
1970 case TIOCMGET: /* Get modem status */
1971 CX_DEBUG2 (d, ("ioctl: tiocmget\n"));
1972 *(int*)data = cx_modem_status (d);
1977 CX_DEBUG2 (d, ("ioctl: 0x%lx\n", cmd));
1981 void cx_softintr (void *unused)
1987 while (MY_SOFT_INTR) {
1989 for (i=0; i<NCX*NCHAN; ++i) {
1991 if (!d || !d->chan || d->chan->type == T_NONE
1992 || d->chan->mode != M_ASYNC || !d->tty
1998 if (d->intr_action & CX_READ) {
2000 if (d->tty->t_state & TS_CAN_BYPASS_L_RINT) {
2002 if (d->tty->t_rawq.c_cc + k >
2004 && (d->tty->t_cflag & CRTS_IFLOW
2005 || d->tty->t_iflag & IXOFF)
2006 && !(d->tty->t_state & TS_TBLOCK))
2008 d->tty->t_rawcc += k;
2014 putc (ic, &d->tty->t_rawq);
2019 if (d->tty->t_state & TS_TTSTOP
2020 && (d->tty->t_iflag & IXANY
2021 || d->tty->t_cc[VSTART] ==
2022 d->tty->t_cc[VSTOP])) {
2023 d->tty->t_state &= ~TS_TTSTOP;
2024 d->tty->t_lflag &= ~FLUSHO;
2025 d->intr_action |= CX_WRITE;
2028 while (q->end != q->beg) {
2032 ttyld_rint (d->tty, ic);
2037 d->intr_action &= ~CX_READ;
2044 if (d->intr_action & CX_WRITE) {
2046 ttyld_start (d->tty);
2049 d->intr_action &= ~CX_WRITE;
2059 * Fill transmitter buffer with data.
2061 static void cx_oproc (struct tty *tp)
2066 static u_char buf[DMABUFSZ];
2068 u_short len = 0, sublen = 0;
2073 CX_DEBUG2 (d, ("cx_oproc\n"));
2078 if (tp->t_cflag & CRTSCTS && (tp->t_state & TS_TBLOCK) && d->chan->rts)
2079 cx_set_rts (d->chan, 0);
2080 else if (tp->t_cflag & CRTSCTS && ! (tp->t_state & TS_TBLOCK) && ! d->chan->rts)
2081 cx_set_rts (d->chan, 1);
2083 if (! (tp->t_state & (TS_TIMEOUT | TS_TTSTOP))) {
2084 /* Start transmitter. */
2085 cx_enable_transmit (d->chan, 1);
2088 if (! cx_buf_free (d->chan)) {
2089 tp->t_state |= TS_BUSY;
2094 if (tp->t_iflag & IXOFF) {
2095 p = (buf + (DMABUFSZ/2));
2096 sublen = q_to_b (&tp->t_outq, p, (DMABUFSZ/2));
2099 /* Send XON/XOFF out of band. */
2100 if (*p == tp->t_cc[VSTOP]) {
2101 cx_xflow_ctl (d->chan, 0);
2105 if (*p == tp->t_cc[VSTART]) {
2106 cx_xflow_ctl (d->chan, 1);
2116 len = q_to_b (&tp->t_outq, p, (DMABUFSZ/2));
2119 cx_send_packet (d->chan, buf, len, 0);
2120 tp->t_state |= TS_BUSY;
2122 CX_DEBUG2 (d, ("out %d bytes\n", len));
2130 static int cx_param (struct tty *tp, struct termios *t)
2134 int s, bits, parity;
2141 if (t->c_ospeed == 0) {
2142 /* Clear DTR and RTS. */
2143 cx_set_dtr (d->chan, 0);
2146 CX_DEBUG2 (d, ("cx_param (hangup)\n"));
2149 CX_DEBUG2 (d, ("cx_param\n"));
2151 /* Check requested parameters. */
2152 if (t->c_ospeed < 300 || t->c_ospeed > 256*1024) {
2157 if (t->c_ispeed && (t->c_ispeed < 300 || t->c_ispeed > 256*1024)) {
2163 /* And copy them to tty and channel structures. */
2164 tp->t_ispeed = t->c_ispeed = tp->t_ospeed = t->c_ospeed;
2165 tp->t_cflag = t->c_cflag;
2167 /* Set character length and parity mode. */
2168 switch (t->c_cflag & CSIZE) {
2170 case CS8: bits = 8; break;
2171 case CS7: bits = 7; break;
2172 case CS6: bits = 6; break;
2173 case CS5: bits = 5; break;
2176 parity = ((t->c_cflag & PARENB) ? 1 : 0) *
2177 (1 + ((t->c_cflag & PARODD) ? 0 : 1));
2179 /* Set current channel number. */
2181 cx_set_dtr (d->chan, 1);
2184 cx_set_async_param (d->chan, t->c_ospeed, bits, parity, (t->c_cflag & CSTOPB),
2185 !(t->c_cflag & PARENB), (t->c_cflag & CRTSCTS),
2186 (t->c_iflag & IXON), (t->c_iflag & IXANY),
2187 t->c_cc[VSTART], t->c_cc[VSTOP]);
2194 * Stop output on a line
2196 static void cx_stop (struct tty *tp, int flag)
2207 if (tp->t_state & TS_BUSY) {
2208 /* Stop transmitter */
2209 CX_DEBUG2 (d, ("cx_stop\n"));
2210 cx_transmitter_ctl (d->chan, 0);
2217 * Process the (delayed) carrier signal setup.
2219 static void cx_carrier (void *arg)
2222 bdrv_t *bd = d->board->sys;
2223 cx_chan_t *c = d->chan;
2231 CX_DEBUG (d, ("carrier on\n"));
2236 ttyld_modem(d->tty, 1);
2238 CX_DEBUG (d, ("carrier loss\n"));
2243 ttyld_modem(d->tty, 0);
2252 * Modem signal callback function.
2254 static void cx_modem (cx_chan_t *c)
2258 if (!d || c->mode != M_ASYNC)
2260 /* Handle carrier detect/loss. */
2261 /* Carrier changed - delay processing DCD for a while
2262 * to give both sides some time to initialize. */
2263 callout_reset (&d->dcd_timeout_handle, hz/2, cx_carrier, d);
2267 static int ng_cx_constructor (node_p node)
2269 drv_t *d = NG_NODE_PRIVATE (node);
2270 CX_DEBUG (d, ("Constructor\n"));
2274 static int ng_cx_newhook (node_p node, hook_p hook, const char *name)
2277 drv_t *d = NG_NODE_PRIVATE (node);
2278 bdrv_t *bd = d->board->sys;
2280 if (d->chan->mode == M_ASYNC)
2283 /* Attach debug hook */
2284 if (strcmp (name, NG_CX_HOOK_DEBUG) == 0) {
2285 NG_HOOK_SET_PRIVATE (hook, NULL);
2286 d->debug_hook = hook;
2290 /* Check for raw hook */
2291 if (strcmp (name, NG_CX_HOOK_RAW) != 0)
2294 NG_HOOK_SET_PRIVATE (hook, d);
2304 static int print_modems (char *s, cx_chan_t *c, int need_header)
2306 int status = cx_modem_status (c->sys);
2310 length += sprintf (s + length, " LE DTR DSR RTS CTS CD\n");
2311 length += sprintf (s + length, "%4s %4s %4s %4s %4s %4s\n",
2312 status & TIOCM_LE ? "On" : "-",
2313 status & TIOCM_DTR ? "On" : "-",
2314 status & TIOCM_DSR ? "On" : "-",
2315 status & TIOCM_RTS ? "On" : "-",
2316 status & TIOCM_CTS ? "On" : "-",
2317 status & TIOCM_CD ? "On" : "-");
2321 static int print_stats (char *s, cx_chan_t *c, int need_header)
2326 length += sprintf (s + length, " Rintr Tintr Mintr Ibytes Ipkts Ierrs Obytes Opkts Oerrs\n");
2327 length += sprintf (s + length, "%7ld %7ld %7ld %8ld %7ld %7ld %8ld %7ld %7ld\n",
2328 c->rintr, c->tintr, c->mintr, c->ibytes, c->ipkts,
2329 c->ierrs, c->obytes, c->opkts, c->oerrs);
2333 static int print_chan (char *s, cx_chan_t *c)
2338 length += sprintf (s + length, "cx%d", c->board->num * NCHAN + c->num);
2340 length += sprintf (s + length, " debug=%d", d->chan->debug);
2342 if (cx_get_baud (c))
2343 length += sprintf (s + length, " %ld", cx_get_baud (c));
2345 length += sprintf (s + length, " extclock");
2347 if (c->mode == M_HDLC) {
2348 length += sprintf (s + length, " dpll=%s", cx_get_dpll (c) ? "on" : "off");
2349 length += sprintf (s + length, " nrzi=%s", cx_get_nrzi (c) ? "on" : "off");
2352 length += sprintf (s + length, " loop=%s", cx_get_loop (c) ? "on\n" : "off\n");
2356 static int ng_cx_rcvmsg (node_p node, item_p item, hook_p lasthook)
2358 drv_t *d = NG_NODE_PRIVATE (node);
2359 struct ng_mesg *msg;
2360 struct ng_mesg *resp = NULL;
2366 CX_DEBUG (d, ("Rcvmsg\n"));
2367 NGI_GET_MSG (item, msg);
2368 switch (msg->header.typecookie) {
2374 printf ("Don't forget to implement\n");
2378 case NGM_GENERIC_COOKIE:
2379 switch (msg->header.cmd) {
2384 case NGM_TEXT_STATUS: {
2387 int dl = sizeof (struct ng_mesg) + 730;
2389 NG_MKRESPONSE (resp, msg, dl, M_NOWAIT);
2396 l += print_chan (s + l, d->chan);
2397 l += print_stats (s + l, d->chan, 1);
2398 l += print_modems (s + l, d->chan, 1);
2399 strncpy ((resp)->header.cmdstr, "status", NG_CMDSTRSIZ);
2405 NG_RESPOND_MSG (error, node, item, resp);
2410 static int ng_cx_rcvdata (hook_p hook, item_p item)
2412 drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE(hook));
2414 struct ng_tag_prio *ptag;
2419 NGI_GET_M (item, m);
2420 NG_FREE_ITEM (item);
2421 if (! NG_HOOK_PRIVATE (hook) || ! d) {
2427 /* Check for high priority data */
2428 if ((ptag = (struct ng_tag_prio *)m_tag_locate(m, NGM_GENERIC_COOKIE,
2429 NG_TAG_PRIO, NULL)) != NULL && (ptag->priority > NG_PRIO_CUTOFF) )
2437 if (_IF_QFULL (q)) {
2453 static int ng_cx_rmnode (node_p node)
2455 drv_t *d = NG_NODE_PRIVATE (node);
2458 CX_DEBUG (d, ("Rmnode\n"));
2459 if (d && d->running) {
2468 if (node->nd_flags & NGF_REALLY_DIE) {
2469 NG_NODE_SET_PRIVATE (node, NULL);
2470 NG_NODE_UNREF (node);
2472 NG_NODE_REVIVE(node); /* Persistant node */
2477 static int ng_cx_connect (hook_p hook)
2479 drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
2481 callout_reset (&d->timeout_handle, hz, cx_watchdog_timer, d);
2485 static int ng_cx_disconnect (hook_p hook)
2487 drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
2488 bdrv_t *bd = d->board->sys;
2493 if (NG_HOOK_PRIVATE (hook))
2497 /* If we were wait it than it reasserted now, just stop it. */
2498 if (!callout_drain (&d->timeout_handle))
2499 callout_stop (&d->timeout_handle);
2504 static int cx_modevent (module_t mod, int type, void *unused)
2506 static int load_count = 0;
2511 if (ng_newtype (&typestruct))
2512 printf ("Failed to register ng_cx\n");
2516 callout_init (&timeout_handle, CALLOUT_MPSAFE);
2517 callout_reset (&timeout_handle, hz*5, cx_timeout, 0);
2518 /* Software interrupt. */
2519 swi_add(&tty_intr_event, "cx", cx_softintr, NULL, SWI_TTY,
2520 INTR_MPSAFE, &cx_fast_ih);
2523 if (load_count == 1) {
2524 printf ("Removing device entry for Sigma\n");
2526 ng_rmtype (&typestruct);
2529 /* If we were wait it than it reasserted now, just stop it. */
2530 if (!callout_drain (&timeout_handle))
2531 callout_stop (&timeout_handle);
2532 swi_remove (cx_fast_ih);
2542 static struct ng_type typestruct = {
2543 .version = NG_ABI_VERSION,
2544 .name = NG_CX_NODE_TYPE,
2545 .constructor = ng_cx_constructor,
2546 .rcvmsg = ng_cx_rcvmsg,
2547 .shutdown = ng_cx_rmnode,
2548 .newhook = ng_cx_newhook,
2549 .connect = ng_cx_connect,
2550 .rcvdata = ng_cx_rcvdata,
2551 .disconnect = ng_cx_disconnect,
2556 MODULE_DEPEND (ng_cx, netgraph, NG_ABI_VERSION, NG_ABI_VERSION, NG_ABI_VERSION);
2558 MODULE_DEPEND (isa_cx, sppp, 1, 1, 1);
2560 DRIVER_MODULE (cx, isa, cx_isa_driver, cx_devclass, cx_modevent, NULL);
2561 MODULE_VERSION (cx, 1);