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 callout timeout_handle;
149 struct ifqueue queue;
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_carrier (void *arg);
203 extern struct ng_type typestruct;
205 static void cx_ifstart (struct ifnet *ifp);
206 static void cx_tlf (struct sppp *sp);
207 static void cx_tls (struct sppp *sp);
208 static void cx_ifwatchdog (struct ifnet *ifp);
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_DONTWAIT, MT_DATA);
260 if (len >= MINCLSIZE)
261 MCLGET (m, M_DONTWAIT);
263 m->m_pkthdr.len = len;
268 u_int n = M_TRAILINGSPACE (p);
272 /* Allocate new mbuf. */
274 MGET (p, M_DONTWAIT, MT_DATA);
279 if (len >= MINCLSIZE)
280 MCLGET (p, M_DONTWAIT);
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);
815 if (ng_make_node_common (&typestruct, &d->node) != 0) {
816 printf ("%s: cannot make common node\n", d->name);
817 channel [b->num*NCHAN + c->num] = 0;
819 cx_bus_dma_mem_free (&d->dmamem);
822 NG_NODE_SET_PRIVATE (d->node, d);
823 sprintf (d->nodename, "%s%d", NG_CX_NODE_TYPE,
824 c->board->num*NCHAN + c->num);
825 if (ng_name_node (d->node, d->nodename)) {
826 printf ("%s: cannot name node\n", d->nodename);
827 NG_NODE_UNREF (d->node);
828 channel [b->num*NCHAN + c->num] = 0;
830 cx_bus_dma_mem_free (&d->dmamem);
833 d->lo_queue.ifq_maxlen = ifqmaxlen;
834 d->hi_queue.ifq_maxlen = ifqmaxlen;
835 mtx_init (&d->lo_queue.ifq_mtx, "cx_queue_lo", NULL, MTX_DEF);
836 mtx_init (&d->hi_queue.ifq_mtx, "cx_queue_hi", NULL, MTX_DEF);
837 callout_init (&d->timeout_handle, CALLOUT_MPSAFE);
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_watchdog = cx_ifwatchdog;
855 d->ifp->if_init = cx_initialize;
856 d->queue.ifq_maxlen = 2;
857 mtx_init (&d->queue.ifq_mtx, "cx_queue", NULL, MTX_DEF);
858 sppp_attach (d->ifp);
860 IFP2SP(d->ifp)->pp_tlf = cx_tlf;
861 IFP2SP(d->ifp)->pp_tls = cx_tls;
862 /* If BPF is in the kernel, call the attach for it.
863 * Size of PPP header is 4 bytes. */
864 bpfattach (d->ifp, DLT_PPP, 4);
867 d->tty = ttyalloc ();
868 d->tty->t_open = cx_topen;
869 d->tty->t_close = cx_tclose;
870 d->tty->t_param = cx_param;
871 d->tty->t_stop = cx_stop;
872 d->tty->t_modem = cx_tmodem;
873 d->tty->t_oproc = cx_oproc;
876 cx_start_chan (c, d->dmamem.virt, d->dmamem.phys);
877 cx_register_receive (c, &cx_receive);
878 cx_register_transmit (c, &cx_transmit);
879 cx_register_error (c, &cx_error);
880 cx_register_modem (c, &cx_modem);
883 ttycreate(d->tty, TS_CALLOUT, "x%r%r", b->num, c->num);
884 d->devt = make_dev (&cx_cdevsw, b->num*NCHAN + c->num + 64, UID_ROOT, GID_WHEEL, 0600, "cx%d", b->num*NCHAN + c->num);
885 d->devt->si_drv1 = d;
886 callout_init (&d->dcd_timeout_handle, CALLOUT_MPSAFE);
893 static int cx_detach (device_t dev)
895 bdrv_t *bd = device_get_softc (dev);
896 cx_board_t *b = bd->board;
900 KASSERT (mtx_initialized (&bd->cx_mtx), ("cx mutex not initialized"));
904 /* Check if the device is busy (open). */
905 for (c = b->chan; c < b->chan + NCHAN; ++c) {
906 drv_t *d = (drv_t*) c->sys;
908 if (!d || d->chan->type == T_NONE)
915 if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) &&
928 /* Deactivate the timeout routine. And soft interrupt*/
929 callout_stop (&led_timo[b->num]);
931 for (c = b->chan; c < b->chan + NCHAN; ++c) {
934 if (!d || d->chan->type == T_NONE)
937 callout_stop (&d->dcd_timeout_handle);
940 bus_teardown_intr (dev, bd->irq_res, bd->intrhand);
941 bus_release_resource (dev, SYS_RES_IRQ, bd->irq_rid, bd->irq_res);
943 bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid, bd->drq_res);
945 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, bd->base_res);
950 /* Detach the interfaces, free buffer memory. */
951 for (c = b->chan; c < b->chan + NCHAN; ++c) {
952 drv_t *d = (drv_t*) c->sys;
954 if (!d || d->chan->type == T_NONE)
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);
999 for (c = b->chan; c < b->chan + NCHAN; ++c) {
1000 drv_t *d = (drv_t*) c->sys;
1002 if (!d || d->chan->type == T_NONE)
1005 /* Deallocate buffers. */
1006 cx_bus_dma_mem_free (&d->dmamem);
1009 adapter [b->num] = 0;
1013 mtx_destroy (&bd->cx_mtx);
1019 static void cx_ifstart (struct ifnet *ifp)
1021 drv_t *d = ifp->if_softc;
1022 bdrv_t *bd = d->board->sys;
1029 static void cx_ifwatchdog (struct ifnet *ifp)
1031 drv_t *d = ifp->if_softc;
1036 static void cx_tlf (struct sppp *sp)
1038 drv_t *d = SP2IFP(sp)->if_softc;
1040 CX_DEBUG (d, ("cx_tlf\n"));
1041 /* cx_set_dtr (d->chan, 0);*/
1042 /* cx_set_rts (d->chan, 0);*/
1043 if (!(IFP2SP(d->ifp)->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO))
1047 static void cx_tls (struct sppp *sp)
1049 drv_t *d = SP2IFP(sp)->if_softc;
1051 CX_DEBUG (d, ("cx_tls\n"));
1052 if (!(IFP2SP(d->ifp)->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO))
1057 * Initialization of interface.
1058 * It seems to be never called by upper level.
1060 static void cx_initialize (void *softc)
1064 CX_DEBUG (d, ("cx_initialize\n"));
1068 * Process an ioctl request.
1070 static int cx_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data)
1072 drv_t *d = ifp->if_softc;
1073 bdrv_t *bd = d->board->sys;
1074 int error, s, was_up, should_be_up;
1076 /* No socket ioctls while the channel is in async mode. */
1077 if (d->chan->type == T_NONE || d->chan->mode == M_ASYNC)
1080 /* Socket ioctls on slave subchannels are not allowed. */
1081 was_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
1082 error = sppp_ioctl (ifp, cmd, data);
1088 if (! (ifp->if_flags & IFF_DEBUG))
1091 d->chan->debug = d->chan->debug_shadow;
1096 default: CX_DEBUG2 (d, ("ioctl 0x%lx\n", cmd)); return 0;
1097 case SIOCADDMULTI: CX_DEBUG2 (d, ("SIOCADDMULTI\n")); return 0;
1098 case SIOCDELMULTI: CX_DEBUG2 (d, ("SIOCDELMULTI\n")); return 0;
1099 case SIOCSIFFLAGS: CX_DEBUG2 (d, ("SIOCSIFFLAGS\n")); break;
1100 case SIOCSIFADDR: CX_DEBUG2 (d, ("SIOCSIFADDR\n")); break;
1103 /* We get here only in case of SIFFLAGS or SIFADDR. */
1106 should_be_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
1107 if (!was_up && should_be_up) {
1108 /* Interface goes up -- start it. */
1111 } else if (was_up && !should_be_up) {
1112 /* Interface is going down -- stop it. */
1113 /* if ((IFP2SP(d->ifp)->pp_flags & PP_FR) || (ifp->if_flags & PP_CISCO))*/
1123 * Stop the interface. Called on splimp().
1125 static void cx_down (drv_t *d)
1128 CX_DEBUG (d, ("cx_down\n"));
1129 cx_set_dtr (d->chan, 0);
1130 cx_set_rts (d->chan, 0);
1136 * Start the interface. Called on splimp().
1138 static void cx_up (drv_t *d)
1141 CX_DEBUG (d, ("cx_up\n"));
1142 cx_set_dtr (d->chan, 1);
1143 cx_set_rts (d->chan, 1);
1149 * Start output on the (slave) interface. Get another datagram to send
1150 * off of the interface queue, and copy it to the interface
1151 * before starting the output.
1153 static void cx_send (drv_t *d)
1158 CX_DEBUG2 (d, ("cx_send\n"));
1160 /* No output if the interface is down. */
1164 /* No output if the modem is off. */
1165 if (! cx_get_dsr (d->chan) && ! cx_get_loop(d->chan))
1168 if (cx_buf_free (d->chan)) {
1169 /* Get the packet to send. */
1171 IF_DEQUEUE (&d->hi_queue, m);
1173 IF_DEQUEUE (&d->lo_queue, m);
1175 m = sppp_dequeue (d->ifp);
1180 BPF_MTAP (d->ifp, m);
1182 len = m_length (m, NULL);
1184 cx_send_packet (d->chan, (u_char*)mtod (m, caddr_t),
1187 u_char buf [DMABUFSZ];
1188 m_copydata (m, 0, len, buf);
1189 cx_send_packet (d->chan, buf, len, 0);
1193 /* Set up transmit timeout, 10 seconds. */
1197 d->ifp->if_timer = 10;
1201 d->ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1206 * Start output on the interface.
1207 * Always called on splimp().
1209 static void cx_start (drv_t *d)
1214 cx_set_dtr (d->chan, 1);
1216 cx_set_rts (d->chan, 1);
1223 * Handle transmit timeouts.
1224 * Recover after lost transmit interrupts.
1225 * Always called on splimp().
1227 static void cx_watchdog (drv_t *d)
1229 bdrv_t *bd = d->board->sys;
1233 CX_DEBUG (d, ("device timeout\n"));
1235 cx_setup_chan (d->chan);
1236 cx_start_chan (d->chan, 0, 0);
1237 cx_set_dtr (d->chan, 1);
1238 cx_set_rts (d->chan, 1);
1246 * Transmit callback function.
1248 static void cx_transmit (cx_chan_t *c, void *attachment, int len)
1255 if (c->mode == M_ASYNC && d->tty) {
1256 d->tty->t_state &= ~(TS_BUSY | TS_FLUSH);
1258 if (d->tty->t_dev) {
1259 d->intr_action |= CX_WRITE;
1261 swi_sched (cx_fast_ih, 0);
1268 ++d->ifp->if_opackets;
1269 d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1270 d->ifp->if_timer = 0;
1276 * Process the received packet.
1278 static void cx_receive (cx_chan_t *c, char *data, int len)
1290 if (c->mode == M_ASYNC && d->tty) {
1291 if (d->tty->t_state & TS_ISOPEN) {
1292 async_q *q = &d->aqueue;
1293 int size = BF_SZ - 1 - AQ_GSZ (q);
1295 if (len <= 0 && !size)
1300 cx_error (c, CX_OVERRUN);
1305 AQ_PUSH (q, *(unsigned char *)cc);
1309 d->intr_action |= CX_READ;
1311 swi_sched (cx_fast_ih, 0);
1318 m = makembuf (data, len);
1320 CX_DEBUG (d, ("no memory for packet\n"));
1322 ++d->ifp->if_iqdrops;
1329 m->m_pkthdr.rcvif = 0;
1330 NG_SEND_DATA_ONLY (error, d->hook, m);
1332 ++d->ifp->if_ipackets;
1333 m->m_pkthdr.rcvif = d->ifp;
1334 /* Check if there's a BPF listener on this interface.
1335 * If so, hand off the raw packet to bpf. */
1336 BPF_TAP (d->ifp, data, len);
1337 IF_ENQUEUE (&d->queue, m);
1341 #define CONDITION(t,tp) (!(t->c_iflag & (ICRNL | IGNCR | IMAXBEL | INLCR | ISTRIP | IXON))\
1342 && (!(tp->t_iflag & BRKINT) || (tp->t_iflag & IGNBRK))\
1343 && (!(tp->t_iflag & PARMRK)\
1344 || (tp->t_iflag & (IGNPAR | IGNBRK)) == (IGNPAR | IGNBRK))\
1345 && !(t->c_lflag & (ECHO | ICANON | IEXTEN | ISIG | PENDIN))\
1346 && linesw[tp->t_line]->l_rint == ttyinput)
1349 * Error callback function.
1351 static void cx_error (cx_chan_t *c, int data)
1363 CX_DEBUG (d, ("frame error\n"));
1364 if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN)
1365 && (AQ_GSZ (q) < BF_SZ - 1)
1366 && (!CONDITION((&d->tty->t_termios), (d->tty))
1367 || !(d->tty->t_iflag & (IGNPAR | PARMRK)))) {
1368 AQ_PUSH (q, TTY_FE);
1369 d->intr_action |= CX_READ;
1371 swi_sched (cx_fast_ih, 0);
1375 ++d->ifp->if_ierrors;
1379 CX_DEBUG (d, ("crc error\n"));
1380 if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN)
1381 && (AQ_GSZ (q) < BF_SZ - 1)
1382 && (!CONDITION((&d->tty->t_termios), (d->tty))
1383 || !(d->tty->t_iflag & INPCK)
1384 || !(d->tty->t_iflag & (IGNPAR | PARMRK)))) {
1385 AQ_PUSH (q, TTY_PE);
1386 d->intr_action |= CX_READ;
1388 swi_sched (cx_fast_ih, 0);
1392 ++d->ifp->if_ierrors;
1396 CX_DEBUG (d, ("overrun error\n"));
1398 if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN)
1399 && (AQ_GSZ (q) < BF_SZ - 1)
1400 && (!CONDITION((&d->tty->t_termios), (d->tty)))) {
1401 AQ_PUSH (q, TTY_OE);
1402 d->intr_action |= CX_READ;
1404 swi_sched (cx_fast_ih, 0);
1409 ++d->ifp->if_collisions;
1410 ++d->ifp->if_ierrors;
1415 CX_DEBUG (d, ("overflow error\n"));
1417 if (c->mode != M_ASYNC)
1418 ++d->ifp->if_ierrors;
1422 CX_DEBUG (d, ("underrun error\n"));
1423 if (c->mode != M_ASYNC) {
1427 ++d->ifp->if_oerrors;
1428 d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1429 d->ifp->if_timer = 0;
1435 CX_DEBUG (d, ("break error\n"));
1436 if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN)
1437 && (AQ_GSZ (q) < BF_SZ - 1)
1438 && (!CONDITION((&d->tty->t_termios), (d->tty))
1439 || !(d->tty->t_iflag & (IGNBRK | BRKINT | PARMRK)))) {
1440 AQ_PUSH (q, TTY_BI);
1441 d->intr_action |= CX_READ;
1443 swi_sched (cx_fast_ih, 0);
1447 ++d->ifp->if_ierrors;
1451 CX_DEBUG (d, ("error #%d\n", data));
1455 static int cx_topen (struct tty *tp, struct cdev *dev)
1461 CX_DEBUG2 (d, ("cx_open (serial)\n"));
1465 if (d->chan->mode != M_ASYNC)
1470 cx_start_chan (d->chan, 0, 0);
1471 cx_set_dtr (d->chan, 1);
1472 cx_set_rts (d->chan, 1);
1473 d->cd = cx_get_cd (d->chan);
1476 CX_DEBUG2 (d, ("cx_open done\n"));
1481 static void cx_tclose (struct tty *tp)
1487 CX_DEBUG2 (d, ("cx_close\n"));
1490 /* Disable receiver.
1491 * Transmitter continues sending the queued data. */
1492 cx_enable_receive (d->chan, 0);
1494 d->open_dev &= ~0x2;
1497 static int cx_tmodem (struct tty *tp, int sigon, int sigoff)
1506 if (!sigon && !sigoff) {
1507 if (cx_get_dsr (d->chan)) sigon |= SER_DSR;
1508 if (cx_get_cd (d->chan)) sigon |= SER_DCD;
1509 if (cx_get_cts (d->chan)) sigon |= SER_CTS;
1510 if (d->chan->dtr) sigon |= SER_DTR;
1511 if (d->chan->rts) sigon |= SER_RTS;
1516 if (sigon & SER_DTR)
1517 cx_set_dtr (d->chan, 1);
1518 if (sigoff & SER_DTR)
1519 cx_set_dtr (d->chan, 0);
1520 if (sigon & SER_RTS)
1521 cx_set_rts (d->chan, 1);
1522 if (sigoff & SER_RTS)
1523 cx_set_rts (d->chan, 0);
1529 static int cx_open (struct cdev *dev, int flag, int mode, struct thread *td)
1535 unit = d->chan->num;
1537 CX_DEBUG2 (d, ("cx_open unit=%d, flag=0x%x, mode=0x%x\n",
1542 CX_DEBUG2 (d, ("cx_open done\n"));
1547 static int cx_close (struct cdev *dev, int flag, int mode, struct thread *td)
1552 CX_DEBUG2 (d, ("cx_close\n"));
1553 d->open_dev &= ~0x1;
1557 static int cx_modem_status (drv_t *d)
1559 bdrv_t *bd = d->board->sys;
1560 int status = 0, s = splhigh ();
1562 /* Already opened by someone or network interface is up? */
1563 if ((d->chan->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) &&
1564 (d->open_dev|0x2)) || (d->chan->mode != M_ASYNC && d->running))
1565 status = TIOCM_LE; /* always enabled while open */
1567 if (cx_get_dsr (d->chan)) status |= TIOCM_DSR;
1568 if (cx_get_cd (d->chan)) status |= TIOCM_CD;
1569 if (cx_get_cts (d->chan)) status |= TIOCM_CTS;
1570 if (d->chan->dtr) status |= TIOCM_DTR;
1571 if (d->chan->rts) status |= TIOCM_RTS;
1577 static int cx_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
1582 struct serial_statistics *st;
1592 case SERIAL_GETREGISTERED:
1593 CX_DEBUG2 (d, ("ioctl: getregistered\n"));
1594 bzero (mask, sizeof(mask));
1595 for (s=0; s<NCX*NCHAN; ++s)
1597 mask [s/8] |= 1 << (s & 7);
1598 bcopy (mask, data, sizeof (mask));
1601 case SERIAL_GETPORT:
1602 CX_DEBUG2 (d, ("ioctl: getport\n"));
1605 *(int *)data = cx_get_port (c);
1613 case SERIAL_SETPORT:
1614 CX_DEBUG2 (d, ("ioctl: setproto\n"));
1615 /* Only for superuser! */
1616 error = priv_check (td, PRIV_DRIVER);
1622 cx_set_port (c, *(int *)data);
1628 case SERIAL_GETPROTO:
1629 CX_DEBUG2 (d, ("ioctl: getproto\n"));
1632 strcpy ((char*)data, (c->mode == M_ASYNC) ? "async" :
1633 (IFP2SP(d->ifp)->pp_flags & PP_FR) ? "fr" :
1634 (d->ifp->if_flags & PP_CISCO) ? "cisco" : "ppp");
1639 case SERIAL_SETPROTO:
1640 CX_DEBUG2 (d, ("ioctl: setproto\n"));
1641 /* Only for superuser! */
1642 error = priv_check (td, PRIV_DRIVER);
1645 if (c->mode == M_ASYNC)
1647 if (d->ifp->if_drv_flags & IFF_DRV_RUNNING)
1649 if (! strcmp ("cisco", (char*)data)) {
1650 IFP2SP(d->ifp)->pp_flags &= ~(PP_FR);
1651 IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
1652 d->ifp->if_flags |= PP_CISCO;
1653 } else if (! strcmp ("fr", (char*)data)) {
1654 d->ifp->if_flags &= ~(PP_CISCO);
1655 IFP2SP(d->ifp)->pp_flags |= PP_FR | PP_KEEPALIVE;
1656 } else if (! strcmp ("ppp", (char*)data)) {
1657 IFP2SP(d->ifp)->pp_flags &= ~(PP_FR | PP_KEEPALIVE);
1658 d->ifp->if_flags &= ~(PP_CISCO);
1663 case SERIAL_GETKEEPALIVE:
1664 CX_DEBUG2 (d, ("ioctl: getkeepalive\n"));
1665 if ((IFP2SP(d->ifp)->pp_flags & PP_FR) ||
1666 (d->ifp->if_flags & PP_CISCO) ||
1667 (c->mode == M_ASYNC))
1671 *(int*)data = (IFP2SP(d->ifp)->pp_flags & PP_KEEPALIVE) ? 1 : 0;
1676 case SERIAL_SETKEEPALIVE:
1677 CX_DEBUG2 (d, ("ioctl: setkeepalive\n"));
1678 /* Only for superuser! */
1679 error = priv_check (td, PRIV_DRIVER);
1682 if ((IFP2SP(d->ifp)->pp_flags & PP_FR) ||
1683 (d->ifp->if_flags & PP_CISCO))
1688 IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
1690 IFP2SP(d->ifp)->pp_flags &= ~PP_KEEPALIVE;
1696 case SERIAL_GETMODE:
1697 CX_DEBUG2 (d, ("ioctl: getmode\n"));
1700 *(int*)data = (c->mode == M_ASYNC) ?
1701 SERIAL_ASYNC : SERIAL_HDLC;
1706 case SERIAL_SETMODE:
1707 CX_DEBUG2 (d, ("ioctl: setmode\n"));
1708 /* Only for superuser! */
1709 error = priv_check (td, PRIV_DRIVER);
1713 /* Somebody is waiting for carrier? */
1716 /* /dev/ttyXX is already opened by someone? */
1717 if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) &&
1720 /* Network interface is up?
1721 * Cannot change to async mode. */
1722 if (c->mode != M_ASYNC && d->running &&
1723 (*(int*)data == SERIAL_ASYNC))
1728 if (c->mode == M_HDLC && *(int*)data == SERIAL_ASYNC) {
1729 cx_set_mode (c, M_ASYNC);
1730 cx_enable_receive (c, 0);
1731 cx_enable_transmit (c, 0);
1732 } else if (c->mode == M_ASYNC && *(int*)data == SERIAL_HDLC) {
1733 if (d->ifp->if_flags & IFF_DEBUG)
1734 c->debug = c->debug_shadow;
1735 cx_set_mode (c, M_HDLC);
1736 cx_enable_receive (c, 1);
1737 cx_enable_transmit (c, 1);
1743 case SERIAL_GETSTAT:
1744 CX_DEBUG2 (d, ("ioctl: getestat\n"));
1745 st = (struct serial_statistics*) data;
1748 st->rintr = c->rintr;
1749 st->tintr = c->tintr;
1750 st->mintr = c->mintr;
1751 st->ibytes = c->ibytes;
1752 st->ipkts = c->ipkts;
1753 st->ierrs = c->ierrs;
1754 st->obytes = c->obytes;
1755 st->opkts = c->opkts;
1756 st->oerrs = c->oerrs;
1761 case SERIAL_CLRSTAT:
1762 CX_DEBUG2 (d, ("ioctl: clrstat\n"));
1763 /* Only for superuser! */
1764 error = priv_check (td, PRIV_DRIVER);
1782 case SERIAL_GETBAUD:
1783 CX_DEBUG2 (d, ("ioctl: getbaud\n"));
1784 if (c->mode == M_ASYNC)
1788 *(long*)data = cx_get_baud(c);
1793 case SERIAL_SETBAUD:
1794 CX_DEBUG2 (d, ("ioctl: setbaud\n"));
1795 /* Only for superuser! */
1796 error = priv_check (td, PRIV_DRIVER);
1799 if (c->mode == M_ASYNC)
1803 cx_set_baud (c, *(long*)data);
1808 case SERIAL_GETLOOP:
1809 CX_DEBUG2 (d, ("ioctl: getloop\n"));
1810 if (c->mode == M_ASYNC)
1814 *(int*)data = cx_get_loop (c);
1819 case SERIAL_SETLOOP:
1820 CX_DEBUG2 (d, ("ioctl: setloop\n"));
1821 /* Only for superuser! */
1822 error = priv_check (td, PRIV_DRIVER);
1825 if (c->mode == M_ASYNC)
1829 cx_set_loop (c, *(int*)data);
1834 case SERIAL_GETDPLL:
1835 CX_DEBUG2 (d, ("ioctl: getdpll\n"));
1836 if (c->mode == M_ASYNC)
1840 *(int*)data = cx_get_dpll (c);
1845 case SERIAL_SETDPLL:
1846 CX_DEBUG2 (d, ("ioctl: setdpll\n"));
1847 /* Only for superuser! */
1848 error = priv_check (td, PRIV_DRIVER);
1851 if (c->mode == M_ASYNC)
1855 cx_set_dpll (c, *(int*)data);
1860 case SERIAL_GETNRZI:
1861 CX_DEBUG2 (d, ("ioctl: getnrzi\n"));
1862 if (c->mode == M_ASYNC)
1866 *(int*)data = cx_get_nrzi (c);
1871 case SERIAL_SETNRZI:
1872 CX_DEBUG2 (d, ("ioctl: setnrzi\n"));
1873 /* Only for superuser! */
1874 error = priv_check (td, PRIV_DRIVER);
1877 if (c->mode == M_ASYNC)
1881 cx_set_nrzi (c, *(int*)data);
1886 case SERIAL_GETDEBUG:
1887 CX_DEBUG2 (d, ("ioctl: getdebug\n"));
1890 *(int*)data = c->debug;
1895 case SERIAL_SETDEBUG:
1896 CX_DEBUG2 (d, ("ioctl: setdebug\n"));
1897 /* Only for superuser! */
1898 error = priv_check (td, PRIV_DRIVER);
1904 if (c->mode == M_ASYNC) {
1905 c->debug = *(int*)data;
1908 * The debug_shadow is always greater than zero for
1909 * logic simplicity. For switching debug off the
1910 * IFF_DEBUG is responsible (for !M_ASYNC mode).
1912 c->debug_shadow = (*(int*)data) ? (*(int*)data) : 1;
1913 if (d->ifp->if_flags & IFF_DEBUG)
1914 c->debug = c->debug_shadow;
1917 c->debug = *(int*)data;
1925 case TIOCSDTR: /* Set DTR */
1926 CX_DEBUG2 (d, ("ioctl: tiocsdtr\n"));
1934 case TIOCCDTR: /* Clear DTR */
1935 CX_DEBUG2 (d, ("ioctl: tioccdtr\n"));
1943 case TIOCMSET: /* Set DTR/RTS */
1944 CX_DEBUG2 (d, ("ioctl: tiocmset\n"));
1947 cx_set_dtr (c, (*(int*)data & TIOCM_DTR) ? 1 : 0);
1948 cx_set_rts (c, (*(int*)data & TIOCM_RTS) ? 1 : 0);
1953 case TIOCMBIS: /* Add DTR/RTS */
1954 CX_DEBUG2 (d, ("ioctl: tiocmbis\n"));
1957 if (*(int*)data & TIOCM_DTR) cx_set_dtr (c, 1);
1958 if (*(int*)data & TIOCM_RTS) cx_set_rts (c, 1);
1963 case TIOCMBIC: /* Clear DTR/RTS */
1964 CX_DEBUG2 (d, ("ioctl: tiocmbic\n"));
1967 if (*(int*)data & TIOCM_DTR) cx_set_dtr (c, 0);
1968 if (*(int*)data & TIOCM_RTS) cx_set_rts (c, 0);
1973 case TIOCMGET: /* Get modem status */
1974 CX_DEBUG2 (d, ("ioctl: tiocmget\n"));
1975 *(int*)data = cx_modem_status (d);
1980 CX_DEBUG2 (d, ("ioctl: 0x%lx\n", cmd));
1984 void cx_softintr (void *unused)
1990 while (MY_SOFT_INTR) {
1992 for (i=0; i<NCX*NCHAN; ++i) {
1994 if (!d || !d->chan || d->chan->type == T_NONE
1995 || d->chan->mode != M_ASYNC || !d->tty
2001 if (d->intr_action & CX_READ) {
2003 if (d->tty->t_state & TS_CAN_BYPASS_L_RINT) {
2005 if (d->tty->t_rawq.c_cc + k >
2007 && (d->tty->t_cflag & CRTS_IFLOW
2008 || d->tty->t_iflag & IXOFF)
2009 && !(d->tty->t_state & TS_TBLOCK))
2011 d->tty->t_rawcc += k;
2017 putc (ic, &d->tty->t_rawq);
2022 if (d->tty->t_state & TS_TTSTOP
2023 && (d->tty->t_iflag & IXANY
2024 || d->tty->t_cc[VSTART] ==
2025 d->tty->t_cc[VSTOP])) {
2026 d->tty->t_state &= ~TS_TTSTOP;
2027 d->tty->t_lflag &= ~FLUSHO;
2028 d->intr_action |= CX_WRITE;
2031 while (q->end != q->beg) {
2035 ttyld_rint (d->tty, ic);
2040 d->intr_action &= ~CX_READ;
2047 if (d->intr_action & CX_WRITE) {
2049 ttyld_start (d->tty);
2052 d->intr_action &= ~CX_WRITE;
2062 * Fill transmitter buffer with data.
2064 static void cx_oproc (struct tty *tp)
2069 static u_char buf[DMABUFSZ];
2071 u_short len = 0, sublen = 0;
2076 CX_DEBUG2 (d, ("cx_oproc\n"));
2081 if (tp->t_cflag & CRTSCTS && (tp->t_state & TS_TBLOCK) && d->chan->rts)
2082 cx_set_rts (d->chan, 0);
2083 else if (tp->t_cflag & CRTSCTS && ! (tp->t_state & TS_TBLOCK) && ! d->chan->rts)
2084 cx_set_rts (d->chan, 1);
2086 if (! (tp->t_state & (TS_TIMEOUT | TS_TTSTOP))) {
2087 /* Start transmitter. */
2088 cx_enable_transmit (d->chan, 1);
2091 if (! cx_buf_free (d->chan)) {
2092 tp->t_state |= TS_BUSY;
2097 if (tp->t_iflag & IXOFF) {
2098 p = (buf + (DMABUFSZ/2));
2099 sublen = q_to_b (&tp->t_outq, p, (DMABUFSZ/2));
2102 /* Send XON/XOFF out of band. */
2103 if (*p == tp->t_cc[VSTOP]) {
2104 cx_xflow_ctl (d->chan, 0);
2108 if (*p == tp->t_cc[VSTART]) {
2109 cx_xflow_ctl (d->chan, 1);
2119 len = q_to_b (&tp->t_outq, p, (DMABUFSZ/2));
2122 cx_send_packet (d->chan, buf, len, 0);
2123 tp->t_state |= TS_BUSY;
2125 CX_DEBUG2 (d, ("out %d bytes\n", len));
2133 static int cx_param (struct tty *tp, struct termios *t)
2137 int s, bits, parity;
2144 if (t->c_ospeed == 0) {
2145 /* Clear DTR and RTS. */
2146 cx_set_dtr (d->chan, 0);
2149 CX_DEBUG2 (d, ("cx_param (hangup)\n"));
2152 CX_DEBUG2 (d, ("cx_param\n"));
2154 /* Check requested parameters. */
2155 if (t->c_ospeed < 300 || t->c_ospeed > 256*1024) {
2160 if (t->c_ispeed && (t->c_ispeed < 300 || t->c_ispeed > 256*1024)) {
2166 /* And copy them to tty and channel structures. */
2167 tp->t_ispeed = t->c_ispeed = tp->t_ospeed = t->c_ospeed;
2168 tp->t_cflag = t->c_cflag;
2170 /* Set character length and parity mode. */
2171 switch (t->c_cflag & CSIZE) {
2173 case CS8: bits = 8; break;
2174 case CS7: bits = 7; break;
2175 case CS6: bits = 6; break;
2176 case CS5: bits = 5; break;
2179 parity = ((t->c_cflag & PARENB) ? 1 : 0) *
2180 (1 + ((t->c_cflag & PARODD) ? 0 : 1));
2182 /* Set current channel number. */
2184 cx_set_dtr (d->chan, 1);
2187 cx_set_async_param (d->chan, t->c_ospeed, bits, parity, (t->c_cflag & CSTOPB),
2188 !(t->c_cflag & PARENB), (t->c_cflag & CRTSCTS),
2189 (t->c_iflag & IXON), (t->c_iflag & IXANY),
2190 t->c_cc[VSTART], t->c_cc[VSTOP]);
2197 * Stop output on a line
2199 static void cx_stop (struct tty *tp, int flag)
2210 if (tp->t_state & TS_BUSY) {
2211 /* Stop transmitter */
2212 CX_DEBUG2 (d, ("cx_stop\n"));
2213 cx_transmitter_ctl (d->chan, 0);
2220 * Process the (delayed) carrier signal setup.
2222 static void cx_carrier (void *arg)
2225 bdrv_t *bd = d->board->sys;
2226 cx_chan_t *c = d->chan;
2234 CX_DEBUG (d, ("carrier on\n"));
2239 ttyld_modem(d->tty, 1);
2241 CX_DEBUG (d, ("carrier loss\n"));
2246 ttyld_modem(d->tty, 0);
2255 * Modem signal callback function.
2257 static void cx_modem (cx_chan_t *c)
2261 if (!d || c->mode != M_ASYNC)
2263 /* Handle carrier detect/loss. */
2264 /* Carrier changed - delay processing DCD for a while
2265 * to give both sides some time to initialize. */
2266 callout_reset (&d->dcd_timeout_handle, hz/2, cx_carrier, d);
2270 static int ng_cx_constructor (node_p node)
2272 drv_t *d = NG_NODE_PRIVATE (node);
2273 CX_DEBUG (d, ("Constructor\n"));
2277 static int ng_cx_newhook (node_p node, hook_p hook, const char *name)
2280 drv_t *d = NG_NODE_PRIVATE (node);
2281 bdrv_t *bd = d->board->sys;
2283 if (d->chan->mode == M_ASYNC)
2286 /* Attach debug hook */
2287 if (strcmp (name, NG_CX_HOOK_DEBUG) == 0) {
2288 NG_HOOK_SET_PRIVATE (hook, NULL);
2289 d->debug_hook = hook;
2293 /* Check for raw hook */
2294 if (strcmp (name, NG_CX_HOOK_RAW) != 0)
2297 NG_HOOK_SET_PRIVATE (hook, d);
2307 static int print_modems (char *s, cx_chan_t *c, int need_header)
2309 int status = cx_modem_status (c->sys);
2313 length += sprintf (s + length, " LE DTR DSR RTS CTS CD\n");
2314 length += sprintf (s + length, "%4s %4s %4s %4s %4s %4s\n",
2315 status & TIOCM_LE ? "On" : "-",
2316 status & TIOCM_DTR ? "On" : "-",
2317 status & TIOCM_DSR ? "On" : "-",
2318 status & TIOCM_RTS ? "On" : "-",
2319 status & TIOCM_CTS ? "On" : "-",
2320 status & TIOCM_CD ? "On" : "-");
2324 static int print_stats (char *s, cx_chan_t *c, int need_header)
2329 length += sprintf (s + length, " Rintr Tintr Mintr Ibytes Ipkts Ierrs Obytes Opkts Oerrs\n");
2330 length += sprintf (s + length, "%7ld %7ld %7ld %8ld %7ld %7ld %8ld %7ld %7ld\n",
2331 c->rintr, c->tintr, c->mintr, c->ibytes, c->ipkts,
2332 c->ierrs, c->obytes, c->opkts, c->oerrs);
2336 static int print_chan (char *s, cx_chan_t *c)
2341 length += sprintf (s + length, "cx%d", c->board->num * NCHAN + c->num);
2343 length += sprintf (s + length, " debug=%d", d->chan->debug);
2345 if (cx_get_baud (c))
2346 length += sprintf (s + length, " %ld", cx_get_baud (c));
2348 length += sprintf (s + length, " extclock");
2350 if (c->mode == M_HDLC) {
2351 length += sprintf (s + length, " dpll=%s", cx_get_dpll (c) ? "on" : "off");
2352 length += sprintf (s + length, " nrzi=%s", cx_get_nrzi (c) ? "on" : "off");
2355 length += sprintf (s + length, " loop=%s", cx_get_loop (c) ? "on\n" : "off\n");
2359 static int ng_cx_rcvmsg (node_p node, item_p item, hook_p lasthook)
2361 drv_t *d = NG_NODE_PRIVATE (node);
2362 struct ng_mesg *msg;
2363 struct ng_mesg *resp = NULL;
2369 CX_DEBUG (d, ("Rcvmsg\n"));
2370 NGI_GET_MSG (item, msg);
2371 switch (msg->header.typecookie) {
2377 printf ("Don't forget to implement\n");
2381 case NGM_GENERIC_COOKIE:
2382 switch (msg->header.cmd) {
2387 case NGM_TEXT_STATUS: {
2390 int dl = sizeof (struct ng_mesg) + 730;
2392 NG_MKRESPONSE (resp, msg, dl, M_NOWAIT);
2399 l += print_chan (s + l, d->chan);
2400 l += print_stats (s + l, d->chan, 1);
2401 l += print_modems (s + l, d->chan, 1);
2402 strncpy ((resp)->header.cmdstr, "status", NG_CMDSTRSIZ);
2408 NG_RESPOND_MSG (error, node, item, resp);
2413 static int ng_cx_rcvdata (hook_p hook, item_p item)
2415 drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE(hook));
2417 struct ng_tag_prio *ptag;
2422 NGI_GET_M (item, m);
2423 NG_FREE_ITEM (item);
2424 if (! NG_HOOK_PRIVATE (hook) || ! d) {
2430 /* Check for high priority data */
2431 if ((ptag = (struct ng_tag_prio *)m_tag_locate(m, NGM_GENERIC_COOKIE,
2432 NG_TAG_PRIO, NULL)) != NULL && (ptag->priority > NG_PRIO_CUTOFF) )
2440 if (_IF_QFULL (q)) {
2456 static int ng_cx_rmnode (node_p node)
2458 drv_t *d = NG_NODE_PRIVATE (node);
2461 CX_DEBUG (d, ("Rmnode\n"));
2462 if (d && d->running) {
2471 if (node->nd_flags & NGF_REALLY_DIE) {
2472 NG_NODE_SET_PRIVATE (node, NULL);
2473 NG_NODE_UNREF (node);
2475 NG_NODE_REVIVE(node); /* Persistant node */
2480 static void ng_cx_watchdog (void *arg)
2484 if (d->timeout == 1)
2488 callout_reset (&d->timeout_handle, hz, ng_cx_watchdog, d);
2491 static int ng_cx_connect (hook_p hook)
2493 drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
2495 callout_reset (&d->timeout_handle, hz, ng_cx_watchdog, d);
2499 static int ng_cx_disconnect (hook_p hook)
2501 drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
2502 bdrv_t *bd = d->board->sys;
2507 if (NG_HOOK_PRIVATE (hook))
2511 /* If we were wait it than it reasserted now, just stop it. */
2512 if (!callout_drain (&d->timeout_handle))
2513 callout_stop (&d->timeout_handle);
2518 static int cx_modevent (module_t mod, int type, void *unused)
2520 static int load_count = 0;
2525 if (ng_newtype (&typestruct))
2526 printf ("Failed to register ng_cx\n");
2530 callout_init (&timeout_handle, CALLOUT_MPSAFE);
2531 callout_reset (&timeout_handle, hz*5, cx_timeout, 0);
2532 /* Software interrupt. */
2533 swi_add(&tty_intr_event, "cx", cx_softintr, NULL, SWI_TTY,
2534 INTR_MPSAFE, &cx_fast_ih);
2537 if (load_count == 1) {
2538 printf ("Removing device entry for Sigma\n");
2540 ng_rmtype (&typestruct);
2543 /* If we were wait it than it reasserted now, just stop it. */
2544 if (!callout_drain (&timeout_handle))
2545 callout_stop (&timeout_handle);
2546 swi_remove (cx_fast_ih);
2556 static struct ng_type typestruct = {
2557 .version = NG_ABI_VERSION,
2558 .name = NG_CX_NODE_TYPE,
2559 .constructor = ng_cx_constructor,
2560 .rcvmsg = ng_cx_rcvmsg,
2561 .shutdown = ng_cx_rmnode,
2562 .newhook = ng_cx_newhook,
2563 .connect = ng_cx_connect,
2564 .rcvdata = ng_cx_rcvdata,
2565 .disconnect = ng_cx_disconnect,
2570 MODULE_DEPEND (ng_cx, netgraph, NG_ABI_VERSION, NG_ABI_VERSION, NG_ABI_VERSION);
2572 MODULE_DEPEND (isa_cx, sppp, 1, 1, 1);
2574 DRIVER_MODULE (cx, isa, cx_isa_driver, cx_devclass, cx_modevent, NULL);
2575 MODULE_VERSION (cx, 1);