2 * Cronyx-Sigma adapter driver for FreeBSD.
3 * Supports PPP/HDLC and Cisco/HDLC protocol in synchronous mode,
4 * and asynchronous 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),
120 typedef struct _cx_dma_mem_t {
128 typedef struct _drv_t {
134 struct callout dcd_timeout_handle;
141 char nodename [NG_NODESIZ];
145 struct ifqueue lo_queue;
146 struct ifqueue hi_queue;
148 struct ifqueue queue;
152 struct callout timeout_handle;
161 typedef struct _bdrv_t {
163 struct resource *base_res;
164 struct resource *drq_res;
165 struct resource *irq_res;
170 drv_t channel [NCHAN];
174 static driver_t cx_isa_driver = {
180 static devclass_t cx_devclass;
182 extern long csigma_fw_len;
183 extern const char *csigma_fw_version;
184 extern const char *csigma_fw_date;
185 extern const char *csigma_fw_copyright;
186 extern const cr_dat_tst_t csigma_fw_tvec[];
187 extern const u_char csigma_fw_data[];
188 static void cx_oproc (struct tty *tp);
189 static int cx_param (struct tty *tp, struct termios *t);
190 static void cx_stop (struct tty *tp, int flag);
191 static void cx_receive (cx_chan_t *c, char *data, int len);
192 static void cx_transmit (cx_chan_t *c, void *attachment, int len);
193 static void cx_error (cx_chan_t *c, int data);
194 static void cx_modem (cx_chan_t *c);
195 static void cx_up (drv_t *d);
196 static void cx_start (drv_t *d);
197 static void cx_softintr (void *);
198 static void *cx_fast_ih;
199 static void cx_down (drv_t *d);
200 static void cx_watchdog (drv_t *d);
201 static void cx_watchdog_timer (void *arg);
202 static void cx_carrier (void *arg);
205 extern struct ng_type typestruct;
207 static void cx_ifstart (struct ifnet *ifp);
208 static void cx_tlf (struct sppp *sp);
209 static void cx_tls (struct sppp *sp);
210 static int cx_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data);
211 static void cx_initialize (void *softc);
214 static cx_board_t *adapter [NCX];
215 static drv_t *channel [NCX*NCHAN];
216 static struct callout led_timo [NCX];
217 static struct callout timeout_handle;
219 static int cx_open (struct cdev *dev, int flag, int mode, struct thread *td);
220 static int cx_close (struct cdev *dev, int flag, int mode, struct thread *td);
221 static int cx_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td);
222 static struct cdevsw cx_cdevsw = {
223 .d_version = D_VERSION,
231 static int MY_SOFT_INTR;
234 * Print the mbuf chain, for debug purposes only.
236 static void printmbuf (struct mbuf *m)
239 for (; m; m=m->m_next) {
240 if (m->m_flags & M_PKTHDR)
241 printf (" HDR %d:", m->m_pkthdr.len);
242 if (m->m_flags & M_EXT)
244 printf (" %d", m->m_len);
250 * Make an mbuf from data.
252 static struct mbuf *makembuf (void *buf, u_int len)
254 struct mbuf *m, *o, *p;
256 MGETHDR (m, M_NOWAIT, MT_DATA);
261 if (len >= MINCLSIZE)
262 MCLGET (m, M_NOWAIT);
264 m->m_pkthdr.len = len;
269 u_int n = M_TRAILINGSPACE (p);
273 /* Allocate new mbuf. */
275 MGET (p, M_NOWAIT, MT_DATA);
280 if (len >= MINCLSIZE)
281 MCLGET (p, M_NOWAIT);
285 n = M_TRAILINGSPACE (p);
289 bcopy (buf, mtod (p, caddr_t) + p->m_len, n);
292 buf = n + (char*) buf;
299 * Recover after lost transmit interrupts.
301 static void cx_timeout (void *arg)
306 for (i = 0; i < NCX; i++) {
307 if (adapter[i] == NULL)
309 for (k = 0; k < NCHAN; ++k) {
310 d = channel[i * NCHAN + k];
314 CX_LOCK ((bdrv_t *)d->board->sys);
315 if (d->atimeout == 1 && d->tty && d->tty->t_state & TS_BUSY) {
316 d->tty->t_state &= ~TS_BUSY;
318 d->intr_action |= CX_WRITE;
320 swi_sched (cx_fast_ih, 0);
322 CX_DEBUG (d, ("cx_timeout\n"));
326 CX_UNLOCK ((bdrv_t *)d->board->sys);
330 callout_reset (&timeout_handle, hz*5, cx_timeout, 0);
333 static void cx_led_off (void *arg)
347 * Activate interrupt handler from DDK.
349 static void cx_intr (void *arg)
352 cx_board_t *b = bd->board;
364 /* Turn LED off 50 msec later. */
365 callout_reset (&led_timo[b->num], hz/20, cx_led_off, b);
370 /* Pass packets in a lock-free state */
371 for (i = 0; i < NCHAN && b->chan[i].type; i++) {
372 drv_t *d = b->chan[i].sys;
374 if (!d || !d->running)
376 while (_IF_QLEN(&d->queue)) {
377 IF_DEQUEUE (&d->queue,m);
380 sppp_input (d->ifp, m);
386 static int probe_irq (cx_board_t *b, int irq)
390 /* Clear pending irq, if any. */
391 cx_probe_irq (b, -irq);
393 for (cnt=0; cnt<5; ++cnt) {
394 /* Get the mask of pending irqs, assuming they are busy.
395 * Activate the adapter on given irq. */
396 busy = cx_probe_irq (b, irq);
399 /* Get the mask of active irqs.
400 * Deactivate our irq. */
401 mask = cx_probe_irq (b, -irq);
403 if ((mask & ~busy) == 1 << irq) {
405 /* printf ("cx%d: irq %d ok, mask=0x%04x, busy=0x%04x\n",
406 b->num, irq, mask, busy); */
410 /* printf ("cx%d: irq %d not functional, mask=0x%04x, busy=0x%04x\n",
411 b->num, irq, mask, busy); */
416 static short porttab [] = {
417 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0,
418 0x300, 0x320, 0x340, 0x360, 0x380, 0x3a0, 0x3c0, 0x3e0, 0
420 static char dmatab [] = { 7, 6, 5, 0 };
421 static char irqtab [] = { 5, 10, 11, 7, 3, 15, 12, 0 };
423 static int cx_is_free_res (device_t dev, int rid, int type, u_long start,
424 u_long end, u_long count)
426 struct resource *res;
428 if (!(res = bus_alloc_resource (dev, type, &rid, start, end, count,
432 bus_release_resource (dev, type, rid, res);
437 static void cx_identify (driver_t *driver, device_t dev)
439 u_long iobase, rescount;
443 devclass_t my_devclass;
446 if ((my_devclass = devclass_find ("cx")) == NULL)
449 devclass_get_devices (my_devclass, &devices, &devcount);
452 /* We should find all devices by our self. We could alter other
453 * devices, but we don't have a choise
455 for (i = 0; (iobase = porttab [i]) != 0; i++) {
456 if (!cx_is_free_res (dev, 0, SYS_RES_IOPORT,
457 iobase, iobase + NPORT, NPORT))
459 if (cx_probe_board (iobase, -1, -1) == 0)
464 child = BUS_ADD_CHILD (dev, ISA_ORDER_SPECULATIVE, "cx",
470 device_set_desc_copy (child, "Cronyx Sigma");
471 device_set_driver (child, driver);
472 bus_set_resource (child, SYS_RES_IOPORT, 0,
479 static short porttab [] = {
480 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0,
481 0x300, 0x320, 0x340, 0x360, 0x380, 0x3a0, 0x3c0, 0x3e0, 0
483 /* Lets check user choise.
485 for (k = 0; k < devcount; k++) {
486 if (bus_get_resource (devices[k], SYS_RES_IOPORT, 0,
487 &iobase, &rescount) != 0)
490 for (i = 0; porttab [i] != 0; i++) {
491 if (porttab [i] != iobase)
493 if (!cx_is_free_res (devices[k], 0, SYS_RES_IOPORT,
494 iobase, iobase + NPORT, NPORT))
496 if (cx_probe_board (iobase, -1, -1) == 0)
499 device_set_desc_copy (devices[k], "Cronyx Sigma");
503 if (porttab [i] == 0) {
504 device_delete_child (
505 device_get_parent (devices[k]),
511 for (k = 0; k < devcount; k++) {
514 if (bus_get_resource (devices[k], SYS_RES_IOPORT, 0,
515 &iobase, &rescount) == 0)
517 for (i = 0; (iobase = porttab [i]) != 0; i++) {
518 if (porttab [i] == -1) {
521 if (!cx_is_free_res (devices[k], 0, SYS_RES_IOPORT,
522 iobase, iobase + NPORT, NPORT))
524 if (cx_probe_board (iobase, -1, -1) == 0)
527 bus_set_resource (devices[k], SYS_RES_IOPORT, 0,
530 device_set_desc_copy (devices[k], "Cronyx Sigma");
533 if (porttab [i] == 0) {
534 device_delete_child (
535 device_get_parent (devices[k]),
539 free (devices, M_TEMP);
545 static int cx_probe (device_t dev)
547 int unit = device_get_unit (dev);
549 u_long iobase, rescount;
551 if (!device_get_desc (dev) ||
552 strcmp (device_get_desc (dev), "Cronyx Sigma"))
555 if (bus_get_resource (dev, SYS_RES_IOPORT, 0, &iobase, &rescount) != 0) {
556 printf ("cx%d: Couldn't get IOPORT\n", unit);
560 if (!cx_is_free_res (dev, 0, SYS_RES_IOPORT,
561 iobase, iobase + NPORT, NPORT)) {
562 printf ("cx%d: Resource IOPORT isn't free %lx\n", unit, iobase);
566 for (i = 0; porttab [i] != 0; i++) {
567 if (porttab [i] == iobase) {
573 if (porttab [i] == 0) {
577 if (!cx_probe_board (iobase, -1, -1)) {
578 printf ("cx%d: probing for Sigma at %lx faild\n", unit, iobase);
586 cx_bus_dmamap_addr (void *arg, bus_dma_segment_t *segs, int nseg, int error)
593 KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
595 *addr = segs->ds_addr;
599 cx_bus_dma_mem_alloc (int bnum, int cnum, cx_dma_mem_t *dmem)
603 error = bus_dma_tag_create (NULL, 16, 0, BUS_SPACE_MAXADDR_24BIT,
604 BUS_SPACE_MAXADDR, NULL, NULL, dmem->size, 1,
605 dmem->size, 0, NULL, NULL, &dmem->dmat);
607 if (cnum >= 0) printf ("cx%d-%d: ", bnum, cnum);
608 else printf ("cx%d: ", bnum);
609 printf ("couldn't allocate tag for dma memory\n");
612 error = bus_dmamem_alloc (dmem->dmat, (void **)&dmem->virt,
613 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &dmem->mapp);
615 if (cnum >= 0) printf ("cx%d-%d: ", bnum, cnum);
616 else printf ("cx%d: ", bnum);
617 printf ("couldn't allocate mem for dma memory\n");
618 bus_dma_tag_destroy (dmem->dmat);
621 error = bus_dmamap_load (dmem->dmat, dmem->mapp, dmem->virt,
622 dmem->size, cx_bus_dmamap_addr, &dmem->phys, 0);
624 if (cnum >= 0) printf ("cx%d-%d: ", bnum, cnum);
625 else printf ("cx%d: ", bnum);
626 printf ("couldn't load mem map for dma memory\n");
627 bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp);
628 bus_dma_tag_destroy (dmem->dmat);
635 cx_bus_dma_mem_free (cx_dma_mem_t *dmem)
637 bus_dmamap_unload (dmem->dmat, dmem->mapp);
638 bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp);
639 bus_dma_tag_destroy (dmem->dmat);
643 * The adapter is present, initialize the driver structures.
645 static int cx_attach (device_t dev)
647 bdrv_t *bd = device_get_softc (dev);
648 u_long iobase, drq, irq, rescount;
649 int unit = device_get_unit (dev);
650 char *cx_ln = CX_LOCK_NAME;
657 KASSERT ((bd != NULL), ("cx%d: NULL device softc\n", unit));
659 bus_get_resource (dev, SYS_RES_IOPORT, 0, &iobase, &rescount);
661 bd->base_res = bus_alloc_resource (dev, SYS_RES_IOPORT, &bd->base_rid,
662 iobase, iobase + NPORT, NPORT, RF_ACTIVE);
663 if (! bd->base_res) {
664 printf ("cx%d: cannot allocate base address\n", unit);
668 if (bus_get_resource (dev, SYS_RES_DRQ, 0, &drq, &rescount) != 0) {
669 for (i = 0; (drq = dmatab [i]) != 0; i++) {
670 if (!cx_is_free_res (dev, 0, SYS_RES_DRQ,
673 bus_set_resource (dev, SYS_RES_DRQ, 0, drq, 1);
677 if (dmatab[i] == 0) {
678 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid,
680 printf ("cx%d: Couldn't get DRQ\n", unit);
686 bd->drq_res = bus_alloc_resource (dev, SYS_RES_DRQ, &bd->drq_rid,
687 drq, drq + 1, 1, RF_ACTIVE);
689 printf ("cx%d: cannot allocate drq\n", unit);
690 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid,
695 if (bus_get_resource (dev, SYS_RES_IRQ, 0, &irq, &rescount) != 0) {
696 for (i = 0; (irq = irqtab [i]) != 0; i++) {
697 if (!cx_is_free_res (dev, 0, SYS_RES_IRQ,
700 bus_set_resource (dev, SYS_RES_IRQ, 0, irq, 1);
704 if (irqtab[i] == 0) {
705 bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid,
707 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid,
709 printf ("cx%d: Couldn't get IRQ\n", unit);
715 bd->irq_res = bus_alloc_resource (dev, SYS_RES_IRQ, &bd->irq_rid,
716 irq, irq + 1, 1, RF_ACTIVE);
718 printf ("cx%d: Couldn't allocate irq\n", unit);
719 bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid,
721 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid,
726 b = malloc (sizeof (cx_board_t), M_DEVBUF, M_WAITOK);
728 printf ("cx:%d: Couldn't allocate memory\n", unit);
732 bzero (b, sizeof(cx_board_t));
734 if (! cx_open_board (b, unit, iobase, irq, drq)) {
735 printf ("cx%d: error loading firmware\n", unit);
737 bus_release_resource (dev, SYS_RES_IRQ, bd->irq_rid,
739 bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid,
741 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid,
748 cx_ln[2] = '0' + unit;
749 mtx_init (&bd->cx_mtx, cx_ln, MTX_NETWORK_LOCK, MTX_DEF|MTX_RECURSE);
750 if (! probe_irq (b, irq)) {
751 printf ("cx%d: irq %ld not functional\n", unit, irq);
754 mtx_destroy (&bd->cx_mtx);
756 bus_release_resource (dev, SYS_RES_IRQ, bd->irq_rid,
758 bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid,
760 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid,
765 callout_init (&led_timo[b->num], CALLOUT_MPSAFE);
767 if (bus_setup_intr (dev, bd->irq_res,
768 INTR_TYPE_NET|INTR_MPSAFE,
769 NULL, cx_intr, bd, &bd->intrhand)) {
770 printf ("cx%d: Can't setup irq %ld\n", unit, irq);
774 mtx_destroy (&bd->cx_mtx);
776 bus_release_resource (dev, SYS_RES_IRQ, bd->irq_rid,
778 bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid,
780 bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid,
787 cx_init (b, b->num, b->port, irq, drq);
788 cx_setup_board (b, 0, 0, 0);
791 printf ("cx%d: <Cronyx-Sigma-%s>\n", b->num, b->name);
793 for (c=b->chan; c<b->chan+NCHAN; ++c) {
794 if (c->type == T_NONE)
796 d = &bd->channel[c->num];
797 d->dmamem.size = sizeof(cx_buf_t);
798 if (! cx_bus_dma_mem_alloc (unit, c->num, &d->dmamem))
804 channel [b->num*NCHAN + c->num] = d;
805 sprintf (d->name, "cx%d.%d", b->num, c->num);
815 callout_init (&d->timeout_handle, CALLOUT_MPSAFE);
817 if (ng_make_node_common (&typestruct, &d->node) != 0) {
818 printf ("%s: cannot make common node\n", d->name);
819 channel [b->num*NCHAN + c->num] = 0;
821 cx_bus_dma_mem_free (&d->dmamem);
824 NG_NODE_SET_PRIVATE (d->node, d);
825 sprintf (d->nodename, "%s%d", NG_CX_NODE_TYPE,
826 c->board->num*NCHAN + c->num);
827 if (ng_name_node (d->node, d->nodename)) {
828 printf ("%s: cannot name node\n", d->nodename);
829 NG_NODE_UNREF (d->node);
830 channel [b->num*NCHAN + c->num] = 0;
832 cx_bus_dma_mem_free (&d->dmamem);
835 d->lo_queue.ifq_maxlen = ifqmaxlen;
836 d->hi_queue.ifq_maxlen = ifqmaxlen;
837 mtx_init (&d->lo_queue.ifq_mtx, "cx_queue_lo", NULL, MTX_DEF);
838 mtx_init (&d->hi_queue.ifq_mtx, "cx_queue_hi", NULL, MTX_DEF);
840 d->ifp = if_alloc(IFT_PPP);
841 if (d->ifp == NULL) {
842 printf ("%s: cannot if_alloc() common interface\n",
844 channel [b->num*NCHAN + c->num] = 0;
846 cx_bus_dma_mem_free (&d->dmamem);
849 d->ifp->if_softc = d;
850 if_initname (d->ifp, "cx", b->num * NCHAN + c->num);
851 d->ifp->if_mtu = PP_MTU;
852 d->ifp->if_flags = IFF_POINTOPOINT | IFF_MULTICAST;
853 d->ifp->if_ioctl = cx_sioctl;
854 d->ifp->if_start = cx_ifstart;
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)
962 callout_stop (&d->timeout_handle);
965 ng_rmnode_self (d->node);
966 NG_NODE_UNREF (d->node);
969 mtx_destroy (&d->lo_queue.ifq_mtx);
970 mtx_destroy (&d->hi_queue.ifq_mtx);
972 /* Detach from the packet filter list of interfaces. */
974 /* Detach from the sync PPP list. */
975 sppp_detach (d->ifp);
979 /* XXXRIK: check interconnection with irq handler */
980 IF_DRAIN (&d->queue);
981 mtx_destroy (&d->queue.ifq_mtx);
983 destroy_dev (d->devt);
988 callout_drain (&led_timo[b->num]);
989 for (c = b->chan; c < b->chan + NCHAN; ++c) {
992 if (!d || d->chan->type == T_NONE)
995 callout_drain (&d->dcd_timeout_handle);
996 callout_drain (&d->timeout_handle);
1001 for (c = b->chan; c < b->chan + NCHAN; ++c) {
1002 drv_t *d = (drv_t*) c->sys;
1004 if (!d || d->chan->type == T_NONE)
1007 /* Deallocate buffers. */
1008 cx_bus_dma_mem_free (&d->dmamem);
1011 adapter [b->num] = 0;
1015 mtx_destroy (&bd->cx_mtx);
1021 static void cx_ifstart (struct ifnet *ifp)
1023 drv_t *d = ifp->if_softc;
1024 bdrv_t *bd = d->board->sys;
1031 static void cx_tlf (struct sppp *sp)
1033 drv_t *d = SP2IFP(sp)->if_softc;
1035 CX_DEBUG (d, ("cx_tlf\n"));
1036 /* cx_set_dtr (d->chan, 0);*/
1037 /* cx_set_rts (d->chan, 0);*/
1038 if (!(IFP2SP(d->ifp)->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO))
1042 static void cx_tls (struct sppp *sp)
1044 drv_t *d = SP2IFP(sp)->if_softc;
1046 CX_DEBUG (d, ("cx_tls\n"));
1047 if (!(IFP2SP(d->ifp)->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO))
1052 * Initialization of interface.
1053 * It seems to be never called by upper level.
1055 static void cx_initialize (void *softc)
1059 CX_DEBUG (d, ("cx_initialize\n"));
1063 * Process an ioctl request.
1065 static int cx_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data)
1067 drv_t *d = ifp->if_softc;
1068 bdrv_t *bd = d->board->sys;
1069 int error, s, was_up, should_be_up;
1071 /* No socket ioctls while the channel is in async mode. */
1072 if (d->chan->type == T_NONE || d->chan->mode == M_ASYNC)
1075 /* Socket ioctls on slave subchannels are not allowed. */
1076 was_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
1077 error = sppp_ioctl (ifp, cmd, data);
1083 if (! (ifp->if_flags & IFF_DEBUG))
1086 d->chan->debug = d->chan->debug_shadow;
1091 default: CX_DEBUG2 (d, ("ioctl 0x%lx\n", cmd)); return 0;
1092 case SIOCADDMULTI: CX_DEBUG2 (d, ("SIOCADDMULTI\n")); return 0;
1093 case SIOCDELMULTI: CX_DEBUG2 (d, ("SIOCDELMULTI\n")); return 0;
1094 case SIOCSIFFLAGS: CX_DEBUG2 (d, ("SIOCSIFFLAGS\n")); break;
1095 case SIOCSIFADDR: CX_DEBUG2 (d, ("SIOCSIFADDR\n")); break;
1098 /* We get here only in case of SIFFLAGS or SIFADDR. */
1101 should_be_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
1102 if (!was_up && should_be_up) {
1103 /* Interface goes up -- start it. */
1106 } else if (was_up && !should_be_up) {
1107 /* Interface is going down -- stop it. */
1108 /* if ((IFP2SP(d->ifp)->pp_flags & PP_FR) || (ifp->if_flags & PP_CISCO))*/
1118 * Stop the interface. Called on splimp().
1120 static void cx_down (drv_t *d)
1123 CX_DEBUG (d, ("cx_down\n"));
1124 cx_set_dtr (d->chan, 0);
1125 cx_set_rts (d->chan, 0);
1127 callout_stop (&d->timeout_handle);
1132 * Start the interface. Called on splimp().
1134 static void cx_up (drv_t *d)
1137 CX_DEBUG (d, ("cx_up\n"));
1138 cx_set_dtr (d->chan, 1);
1139 cx_set_rts (d->chan, 1);
1145 * Start output on the (slave) interface. Get another datagram to send
1146 * off of the interface queue, and copy it to the interface
1147 * before starting the output.
1149 static void cx_send (drv_t *d)
1154 CX_DEBUG2 (d, ("cx_send\n"));
1156 /* No output if the interface is down. */
1160 /* No output if the modem is off. */
1161 if (! cx_get_dsr (d->chan) && ! cx_get_loop(d->chan))
1164 if (cx_buf_free (d->chan)) {
1165 /* Get the packet to send. */
1167 IF_DEQUEUE (&d->hi_queue, m);
1169 IF_DEQUEUE (&d->lo_queue, m);
1171 m = sppp_dequeue (d->ifp);
1176 BPF_MTAP (d->ifp, m);
1178 len = m_length (m, NULL);
1180 cx_send_packet (d->chan, (u_char*)mtod (m, caddr_t),
1183 u_char buf [DMABUFSZ];
1184 m_copydata (m, 0, len, buf);
1185 cx_send_packet (d->chan, buf, len, 0);
1189 /* Set up transmit timeout, 10 seconds. */
1193 d->ifp->if_drv_flags |= IFF_DRV_OACTIVE;
1198 * Start output on the interface.
1199 * Always called on splimp().
1201 static void cx_start (drv_t *d)
1206 cx_set_dtr (d->chan, 1);
1208 cx_set_rts (d->chan, 1);
1210 callout_reset (&d->timeout_handle, hz, cx_watchdog_timer, d);
1216 * Handle transmit timeouts.
1217 * Recover after lost transmit interrupts.
1218 * Always called on splimp().
1220 static void cx_watchdog (drv_t *d)
1223 CX_DEBUG (d, ("device timeout\n"));
1225 cx_setup_chan (d->chan);
1226 cx_start_chan (d->chan, 0, 0);
1227 cx_set_dtr (d->chan, 1);
1228 cx_set_rts (d->chan, 1);
1233 static void cx_watchdog_timer (void *arg)
1236 bdrv_t *bd = d->board->sys;
1239 if (d->timeout == 1)
1243 callout_reset (&d->timeout_handle, hz, cx_watchdog_timer, d);
1248 * Transmit callback function.
1250 static void cx_transmit (cx_chan_t *c, void *attachment, int len)
1257 if (c->mode == M_ASYNC && d->tty) {
1258 d->tty->t_state &= ~(TS_BUSY | TS_FLUSH);
1260 if (d->tty->t_dev) {
1261 d->intr_action |= CX_WRITE;
1263 swi_sched (cx_fast_ih, 0);
1269 ++d->ifp->if_opackets;
1270 d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
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) {
1426 ++d->ifp->if_oerrors;
1427 d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
1433 CX_DEBUG (d, ("break error\n"));
1434 if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN)
1435 && (AQ_GSZ (q) < BF_SZ - 1)
1436 && (!CONDITION((&d->tty->t_termios), (d->tty))
1437 || !(d->tty->t_iflag & (IGNBRK | BRKINT | PARMRK)))) {
1438 AQ_PUSH (q, TTY_BI);
1439 d->intr_action |= CX_READ;
1441 swi_sched (cx_fast_ih, 0);
1445 ++d->ifp->if_ierrors;
1449 CX_DEBUG (d, ("error #%d\n", data));
1453 static int cx_topen (struct tty *tp, struct cdev *dev)
1459 CX_DEBUG2 (d, ("cx_open (serial)\n"));
1463 if (d->chan->mode != M_ASYNC)
1468 cx_start_chan (d->chan, 0, 0);
1469 cx_set_dtr (d->chan, 1);
1470 cx_set_rts (d->chan, 1);
1471 d->cd = cx_get_cd (d->chan);
1474 CX_DEBUG2 (d, ("cx_open done\n"));
1479 static void cx_tclose (struct tty *tp)
1485 CX_DEBUG2 (d, ("cx_close\n"));
1488 /* Disable receiver.
1489 * Transmitter continues sending the queued data. */
1490 cx_enable_receive (d->chan, 0);
1492 d->open_dev &= ~0x2;
1495 static int cx_tmodem (struct tty *tp, int sigon, int sigoff)
1504 if (!sigon && !sigoff) {
1505 if (cx_get_dsr (d->chan)) sigon |= SER_DSR;
1506 if (cx_get_cd (d->chan)) sigon |= SER_DCD;
1507 if (cx_get_cts (d->chan)) sigon |= SER_CTS;
1508 if (d->chan->dtr) sigon |= SER_DTR;
1509 if (d->chan->rts) sigon |= SER_RTS;
1514 if (sigon & SER_DTR)
1515 cx_set_dtr (d->chan, 1);
1516 if (sigoff & SER_DTR)
1517 cx_set_dtr (d->chan, 0);
1518 if (sigon & SER_RTS)
1519 cx_set_rts (d->chan, 1);
1520 if (sigoff & SER_RTS)
1521 cx_set_rts (d->chan, 0);
1527 static int cx_open (struct cdev *dev, int flag, int mode, struct thread *td)
1533 unit = d->chan->num;
1535 CX_DEBUG2 (d, ("cx_open unit=%d, flag=0x%x, mode=0x%x\n",
1540 CX_DEBUG2 (d, ("cx_open done\n"));
1545 static int cx_close (struct cdev *dev, int flag, int mode, struct thread *td)
1550 CX_DEBUG2 (d, ("cx_close\n"));
1551 d->open_dev &= ~0x1;
1555 static int cx_modem_status (drv_t *d)
1557 bdrv_t *bd = d->board->sys;
1558 int status = 0, s = splhigh ();
1560 /* Already opened by someone or network interface is up? */
1561 if ((d->chan->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) &&
1562 (d->open_dev|0x2)) || (d->chan->mode != M_ASYNC && d->running))
1563 status = TIOCM_LE; /* always enabled while open */
1565 if (cx_get_dsr (d->chan)) status |= TIOCM_DSR;
1566 if (cx_get_cd (d->chan)) status |= TIOCM_CD;
1567 if (cx_get_cts (d->chan)) status |= TIOCM_CTS;
1568 if (d->chan->dtr) status |= TIOCM_DTR;
1569 if (d->chan->rts) status |= TIOCM_RTS;
1575 static int cx_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
1580 struct serial_statistics *st;
1590 case SERIAL_GETREGISTERED:
1591 CX_DEBUG2 (d, ("ioctl: getregistered\n"));
1592 bzero (mask, sizeof(mask));
1593 for (s=0; s<NCX*NCHAN; ++s)
1595 mask [s/8] |= 1 << (s & 7);
1596 bcopy (mask, data, sizeof (mask));
1599 case SERIAL_GETPORT:
1600 CX_DEBUG2 (d, ("ioctl: getport\n"));
1603 *(int *)data = cx_get_port (c);
1611 case SERIAL_SETPORT:
1612 CX_DEBUG2 (d, ("ioctl: setproto\n"));
1613 /* Only for superuser! */
1614 error = priv_check (td, PRIV_DRIVER);
1620 cx_set_port (c, *(int *)data);
1626 case SERIAL_GETPROTO:
1627 CX_DEBUG2 (d, ("ioctl: getproto\n"));
1630 strcpy ((char*)data, (c->mode == M_ASYNC) ? "async" :
1631 (IFP2SP(d->ifp)->pp_flags & PP_FR) ? "fr" :
1632 (d->ifp->if_flags & PP_CISCO) ? "cisco" : "ppp");
1637 case SERIAL_SETPROTO:
1638 CX_DEBUG2 (d, ("ioctl: setproto\n"));
1639 /* Only for superuser! */
1640 error = priv_check (td, PRIV_DRIVER);
1643 if (c->mode == M_ASYNC)
1645 if (d->ifp->if_drv_flags & IFF_DRV_RUNNING)
1647 if (! strcmp ("cisco", (char*)data)) {
1648 IFP2SP(d->ifp)->pp_flags &= ~(PP_FR);
1649 IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
1650 d->ifp->if_flags |= PP_CISCO;
1651 } else if (! strcmp ("fr", (char*)data)) {
1652 d->ifp->if_flags &= ~(PP_CISCO);
1653 IFP2SP(d->ifp)->pp_flags |= PP_FR | PP_KEEPALIVE;
1654 } else if (! strcmp ("ppp", (char*)data)) {
1655 IFP2SP(d->ifp)->pp_flags &= ~(PP_FR | PP_KEEPALIVE);
1656 d->ifp->if_flags &= ~(PP_CISCO);
1661 case SERIAL_GETKEEPALIVE:
1662 CX_DEBUG2 (d, ("ioctl: getkeepalive\n"));
1663 if ((IFP2SP(d->ifp)->pp_flags & PP_FR) ||
1664 (d->ifp->if_flags & PP_CISCO) ||
1665 (c->mode == M_ASYNC))
1669 *(int*)data = (IFP2SP(d->ifp)->pp_flags & PP_KEEPALIVE) ? 1 : 0;
1674 case SERIAL_SETKEEPALIVE:
1675 CX_DEBUG2 (d, ("ioctl: setkeepalive\n"));
1676 /* Only for superuser! */
1677 error = priv_check (td, PRIV_DRIVER);
1680 if ((IFP2SP(d->ifp)->pp_flags & PP_FR) ||
1681 (d->ifp->if_flags & PP_CISCO))
1686 IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
1688 IFP2SP(d->ifp)->pp_flags &= ~PP_KEEPALIVE;
1694 case SERIAL_GETMODE:
1695 CX_DEBUG2 (d, ("ioctl: getmode\n"));
1698 *(int*)data = (c->mode == M_ASYNC) ?
1699 SERIAL_ASYNC : SERIAL_HDLC;
1704 case SERIAL_SETMODE:
1705 CX_DEBUG2 (d, ("ioctl: setmode\n"));
1706 /* Only for superuser! */
1707 error = priv_check (td, PRIV_DRIVER);
1711 /* Somebody is waiting for carrier? */
1714 /* /dev/ttyXX is already opened by someone? */
1715 if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) &&
1718 /* Network interface is up?
1719 * Cannot change to async mode. */
1720 if (c->mode != M_ASYNC && d->running &&
1721 (*(int*)data == SERIAL_ASYNC))
1726 if (c->mode == M_HDLC && *(int*)data == SERIAL_ASYNC) {
1727 cx_set_mode (c, M_ASYNC);
1728 cx_enable_receive (c, 0);
1729 cx_enable_transmit (c, 0);
1730 } else if (c->mode == M_ASYNC && *(int*)data == SERIAL_HDLC) {
1731 if (d->ifp->if_flags & IFF_DEBUG)
1732 c->debug = c->debug_shadow;
1733 cx_set_mode (c, M_HDLC);
1734 cx_enable_receive (c, 1);
1735 cx_enable_transmit (c, 1);
1741 case SERIAL_GETSTAT:
1742 CX_DEBUG2 (d, ("ioctl: getestat\n"));
1743 st = (struct serial_statistics*) data;
1746 st->rintr = c->rintr;
1747 st->tintr = c->tintr;
1748 st->mintr = c->mintr;
1749 st->ibytes = c->ibytes;
1750 st->ipkts = c->ipkts;
1751 st->ierrs = c->ierrs;
1752 st->obytes = c->obytes;
1753 st->opkts = c->opkts;
1754 st->oerrs = c->oerrs;
1759 case SERIAL_CLRSTAT:
1760 CX_DEBUG2 (d, ("ioctl: clrstat\n"));
1761 /* Only for superuser! */
1762 error = priv_check (td, PRIV_DRIVER);
1780 case SERIAL_GETBAUD:
1781 CX_DEBUG2 (d, ("ioctl: getbaud\n"));
1782 if (c->mode == M_ASYNC)
1786 *(long*)data = cx_get_baud(c);
1791 case SERIAL_SETBAUD:
1792 CX_DEBUG2 (d, ("ioctl: setbaud\n"));
1793 /* Only for superuser! */
1794 error = priv_check (td, PRIV_DRIVER);
1797 if (c->mode == M_ASYNC)
1801 cx_set_baud (c, *(long*)data);
1806 case SERIAL_GETLOOP:
1807 CX_DEBUG2 (d, ("ioctl: getloop\n"));
1808 if (c->mode == M_ASYNC)
1812 *(int*)data = cx_get_loop (c);
1817 case SERIAL_SETLOOP:
1818 CX_DEBUG2 (d, ("ioctl: setloop\n"));
1819 /* Only for superuser! */
1820 error = priv_check (td, PRIV_DRIVER);
1823 if (c->mode == M_ASYNC)
1827 cx_set_loop (c, *(int*)data);
1832 case SERIAL_GETDPLL:
1833 CX_DEBUG2 (d, ("ioctl: getdpll\n"));
1834 if (c->mode == M_ASYNC)
1838 *(int*)data = cx_get_dpll (c);
1843 case SERIAL_SETDPLL:
1844 CX_DEBUG2 (d, ("ioctl: setdpll\n"));
1845 /* Only for superuser! */
1846 error = priv_check (td, PRIV_DRIVER);
1849 if (c->mode == M_ASYNC)
1853 cx_set_dpll (c, *(int*)data);
1858 case SERIAL_GETNRZI:
1859 CX_DEBUG2 (d, ("ioctl: getnrzi\n"));
1860 if (c->mode == M_ASYNC)
1864 *(int*)data = cx_get_nrzi (c);
1869 case SERIAL_SETNRZI:
1870 CX_DEBUG2 (d, ("ioctl: setnrzi\n"));
1871 /* Only for superuser! */
1872 error = priv_check (td, PRIV_DRIVER);
1875 if (c->mode == M_ASYNC)
1879 cx_set_nrzi (c, *(int*)data);
1884 case SERIAL_GETDEBUG:
1885 CX_DEBUG2 (d, ("ioctl: getdebug\n"));
1888 *(int*)data = c->debug;
1893 case SERIAL_SETDEBUG:
1894 CX_DEBUG2 (d, ("ioctl: setdebug\n"));
1895 /* Only for superuser! */
1896 error = priv_check (td, PRIV_DRIVER);
1902 if (c->mode == M_ASYNC) {
1903 c->debug = *(int*)data;
1906 * The debug_shadow is always greater than zero for
1907 * logic simplicity. For switching debug off the
1908 * IFF_DEBUG is responsible (for !M_ASYNC mode).
1910 c->debug_shadow = (*(int*)data) ? (*(int*)data) : 1;
1911 if (d->ifp->if_flags & IFF_DEBUG)
1912 c->debug = c->debug_shadow;
1915 c->debug = *(int*)data;
1923 case TIOCSDTR: /* Set DTR */
1924 CX_DEBUG2 (d, ("ioctl: tiocsdtr\n"));
1932 case TIOCCDTR: /* Clear DTR */
1933 CX_DEBUG2 (d, ("ioctl: tioccdtr\n"));
1941 case TIOCMSET: /* Set DTR/RTS */
1942 CX_DEBUG2 (d, ("ioctl: tiocmset\n"));
1945 cx_set_dtr (c, (*(int*)data & TIOCM_DTR) ? 1 : 0);
1946 cx_set_rts (c, (*(int*)data & TIOCM_RTS) ? 1 : 0);
1951 case TIOCMBIS: /* Add DTR/RTS */
1952 CX_DEBUG2 (d, ("ioctl: tiocmbis\n"));
1955 if (*(int*)data & TIOCM_DTR) cx_set_dtr (c, 1);
1956 if (*(int*)data & TIOCM_RTS) cx_set_rts (c, 1);
1961 case TIOCMBIC: /* Clear DTR/RTS */
1962 CX_DEBUG2 (d, ("ioctl: tiocmbic\n"));
1965 if (*(int*)data & TIOCM_DTR) cx_set_dtr (c, 0);
1966 if (*(int*)data & TIOCM_RTS) cx_set_rts (c, 0);
1971 case TIOCMGET: /* Get modem status */
1972 CX_DEBUG2 (d, ("ioctl: tiocmget\n"));
1973 *(int*)data = cx_modem_status (d);
1978 CX_DEBUG2 (d, ("ioctl: 0x%lx\n", cmd));
1982 void cx_softintr (void *unused)
1988 while (MY_SOFT_INTR) {
1990 for (i=0; i<NCX*NCHAN; ++i) {
1992 if (!d || !d->chan || d->chan->type == T_NONE
1993 || d->chan->mode != M_ASYNC || !d->tty
1999 if (d->intr_action & CX_READ) {
2001 if (d->tty->t_state & TS_CAN_BYPASS_L_RINT) {
2003 if (d->tty->t_rawq.c_cc + k >
2005 && (d->tty->t_cflag & CRTS_IFLOW
2006 || d->tty->t_iflag & IXOFF)
2007 && !(d->tty->t_state & TS_TBLOCK))
2009 d->tty->t_rawcc += k;
2015 putc (ic, &d->tty->t_rawq);
2020 if (d->tty->t_state & TS_TTSTOP
2021 && (d->tty->t_iflag & IXANY
2022 || d->tty->t_cc[VSTART] ==
2023 d->tty->t_cc[VSTOP])) {
2024 d->tty->t_state &= ~TS_TTSTOP;
2025 d->tty->t_lflag &= ~FLUSHO;
2026 d->intr_action |= CX_WRITE;
2029 while (q->end != q->beg) {
2033 ttyld_rint (d->tty, ic);
2038 d->intr_action &= ~CX_READ;
2045 if (d->intr_action & CX_WRITE) {
2047 ttyld_start (d->tty);
2050 d->intr_action &= ~CX_WRITE;
2060 * Fill transmitter buffer with data.
2062 static void cx_oproc (struct tty *tp)
2067 static u_char buf[DMABUFSZ];
2069 u_short len = 0, sublen = 0;
2074 CX_DEBUG2 (d, ("cx_oproc\n"));
2079 if (tp->t_cflag & CRTSCTS && (tp->t_state & TS_TBLOCK) && d->chan->rts)
2080 cx_set_rts (d->chan, 0);
2081 else if (tp->t_cflag & CRTSCTS && ! (tp->t_state & TS_TBLOCK) && ! d->chan->rts)
2082 cx_set_rts (d->chan, 1);
2084 if (! (tp->t_state & (TS_TIMEOUT | TS_TTSTOP))) {
2085 /* Start transmitter. */
2086 cx_enable_transmit (d->chan, 1);
2089 if (! cx_buf_free (d->chan)) {
2090 tp->t_state |= TS_BUSY;
2095 if (tp->t_iflag & IXOFF) {
2096 p = (buf + (DMABUFSZ/2));
2097 sublen = q_to_b (&tp->t_outq, p, (DMABUFSZ/2));
2100 /* Send XON/XOFF out of band. */
2101 if (*p == tp->t_cc[VSTOP]) {
2102 cx_xflow_ctl (d->chan, 0);
2106 if (*p == tp->t_cc[VSTART]) {
2107 cx_xflow_ctl (d->chan, 1);
2117 len = q_to_b (&tp->t_outq, p, (DMABUFSZ/2));
2120 cx_send_packet (d->chan, buf, len, 0);
2121 tp->t_state |= TS_BUSY;
2123 CX_DEBUG2 (d, ("out %d bytes\n", len));
2131 static int cx_param (struct tty *tp, struct termios *t)
2135 int s, bits, parity;
2142 if (t->c_ospeed == 0) {
2143 /* Clear DTR and RTS. */
2144 cx_set_dtr (d->chan, 0);
2147 CX_DEBUG2 (d, ("cx_param (hangup)\n"));
2150 CX_DEBUG2 (d, ("cx_param\n"));
2152 /* Check requested parameters. */
2153 if (t->c_ospeed < 300 || t->c_ospeed > 256*1024) {
2158 if (t->c_ispeed && (t->c_ispeed < 300 || t->c_ispeed > 256*1024)) {
2164 /* And copy them to tty and channel structures. */
2165 tp->t_ispeed = t->c_ispeed = tp->t_ospeed = t->c_ospeed;
2166 tp->t_cflag = t->c_cflag;
2168 /* Set character length and parity mode. */
2169 switch (t->c_cflag & CSIZE) {
2171 case CS8: bits = 8; break;
2172 case CS7: bits = 7; break;
2173 case CS6: bits = 6; break;
2174 case CS5: bits = 5; break;
2177 parity = ((t->c_cflag & PARENB) ? 1 : 0) *
2178 (1 + ((t->c_cflag & PARODD) ? 0 : 1));
2180 /* Set current channel number. */
2182 cx_set_dtr (d->chan, 1);
2185 cx_set_async_param (d->chan, t->c_ospeed, bits, parity, (t->c_cflag & CSTOPB),
2186 !(t->c_cflag & PARENB), (t->c_cflag & CRTSCTS),
2187 (t->c_iflag & IXON), (t->c_iflag & IXANY),
2188 t->c_cc[VSTART], t->c_cc[VSTOP]);
2195 * Stop output on a line
2197 static void cx_stop (struct tty *tp, int flag)
2208 if (tp->t_state & TS_BUSY) {
2209 /* Stop transmitter */
2210 CX_DEBUG2 (d, ("cx_stop\n"));
2211 cx_transmitter_ctl (d->chan, 0);
2218 * Process the (delayed) carrier signal setup.
2220 static void cx_carrier (void *arg)
2223 bdrv_t *bd = d->board->sys;
2224 cx_chan_t *c = d->chan;
2232 CX_DEBUG (d, ("carrier on\n"));
2237 ttyld_modem(d->tty, 1);
2239 CX_DEBUG (d, ("carrier loss\n"));
2244 ttyld_modem(d->tty, 0);
2253 * Modem signal callback function.
2255 static void cx_modem (cx_chan_t *c)
2259 if (!d || c->mode != M_ASYNC)
2261 /* Handle carrier detect/loss. */
2262 /* Carrier changed - delay processing DCD for a while
2263 * to give both sides some time to initialize. */
2264 callout_reset (&d->dcd_timeout_handle, hz/2, cx_carrier, d);
2268 static int ng_cx_constructor (node_p node)
2270 drv_t *d = NG_NODE_PRIVATE (node);
2271 CX_DEBUG (d, ("Constructor\n"));
2275 static int ng_cx_newhook (node_p node, hook_p hook, const char *name)
2278 drv_t *d = NG_NODE_PRIVATE (node);
2279 bdrv_t *bd = d->board->sys;
2281 if (d->chan->mode == M_ASYNC)
2284 /* Attach debug hook */
2285 if (strcmp (name, NG_CX_HOOK_DEBUG) == 0) {
2286 NG_HOOK_SET_PRIVATE (hook, NULL);
2287 d->debug_hook = hook;
2291 /* Check for raw hook */
2292 if (strcmp (name, NG_CX_HOOK_RAW) != 0)
2295 NG_HOOK_SET_PRIVATE (hook, d);
2305 static int print_modems (char *s, cx_chan_t *c, int need_header)
2307 int status = cx_modem_status (c->sys);
2311 length += sprintf (s + length, " LE DTR DSR RTS CTS CD\n");
2312 length += sprintf (s + length, "%4s %4s %4s %4s %4s %4s\n",
2313 status & TIOCM_LE ? "On" : "-",
2314 status & TIOCM_DTR ? "On" : "-",
2315 status & TIOCM_DSR ? "On" : "-",
2316 status & TIOCM_RTS ? "On" : "-",
2317 status & TIOCM_CTS ? "On" : "-",
2318 status & TIOCM_CD ? "On" : "-");
2322 static int print_stats (char *s, cx_chan_t *c, int need_header)
2327 length += sprintf (s + length, " Rintr Tintr Mintr Ibytes Ipkts Ierrs Obytes Opkts Oerrs\n");
2328 length += sprintf (s + length, "%7ld %7ld %7ld %8ld %7ld %7ld %8ld %7ld %7ld\n",
2329 c->rintr, c->tintr, c->mintr, c->ibytes, c->ipkts,
2330 c->ierrs, c->obytes, c->opkts, c->oerrs);
2334 static int print_chan (char *s, cx_chan_t *c)
2339 length += sprintf (s + length, "cx%d", c->board->num * NCHAN + c->num);
2341 length += sprintf (s + length, " debug=%d", d->chan->debug);
2343 if (cx_get_baud (c))
2344 length += sprintf (s + length, " %ld", cx_get_baud (c));
2346 length += sprintf (s + length, " extclock");
2348 if (c->mode == M_HDLC) {
2349 length += sprintf (s + length, " dpll=%s", cx_get_dpll (c) ? "on" : "off");
2350 length += sprintf (s + length, " nrzi=%s", cx_get_nrzi (c) ? "on" : "off");
2353 length += sprintf (s + length, " loop=%s", cx_get_loop (c) ? "on\n" : "off\n");
2357 static int ng_cx_rcvmsg (node_p node, item_p item, hook_p lasthook)
2359 drv_t *d = NG_NODE_PRIVATE (node);
2360 struct ng_mesg *msg;
2361 struct ng_mesg *resp = NULL;
2367 CX_DEBUG (d, ("Rcvmsg\n"));
2368 NGI_GET_MSG (item, msg);
2369 switch (msg->header.typecookie) {
2375 printf ("Don't forget to implement\n");
2379 case NGM_GENERIC_COOKIE:
2380 switch (msg->header.cmd) {
2385 case NGM_TEXT_STATUS: {
2388 int dl = sizeof (struct ng_mesg) + 730;
2390 NG_MKRESPONSE (resp, msg, dl, M_NOWAIT);
2397 l += print_chan (s + l, d->chan);
2398 l += print_stats (s + l, d->chan, 1);
2399 l += print_modems (s + l, d->chan, 1);
2400 strncpy ((resp)->header.cmdstr, "status", NG_CMDSTRSIZ);
2406 NG_RESPOND_MSG (error, node, item, resp);
2411 static int ng_cx_rcvdata (hook_p hook, item_p item)
2413 drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE(hook));
2415 struct ng_tag_prio *ptag;
2420 NGI_GET_M (item, m);
2421 NG_FREE_ITEM (item);
2422 if (! NG_HOOK_PRIVATE (hook) || ! d) {
2428 /* Check for high priority data */
2429 if ((ptag = (struct ng_tag_prio *)m_tag_locate(m, NGM_GENERIC_COOKIE,
2430 NG_TAG_PRIO, NULL)) != NULL && (ptag->priority > NG_PRIO_CUTOFF) )
2438 if (_IF_QFULL (q)) {
2454 static int ng_cx_rmnode (node_p node)
2456 drv_t *d = NG_NODE_PRIVATE (node);
2459 CX_DEBUG (d, ("Rmnode\n"));
2460 if (d && d->running) {
2469 if (node->nd_flags & NGF_REALLY_DIE) {
2470 NG_NODE_SET_PRIVATE (node, NULL);
2471 NG_NODE_UNREF (node);
2473 NG_NODE_REVIVE(node); /* Persistant node */
2478 static int ng_cx_connect (hook_p hook)
2480 drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
2482 callout_reset (&d->timeout_handle, hz, cx_watchdog_timer, d);
2486 static int ng_cx_disconnect (hook_p hook)
2488 drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
2489 bdrv_t *bd = d->board->sys;
2494 if (NG_HOOK_PRIVATE (hook))
2498 /* If we were wait it than it reasserted now, just stop it. */
2499 if (!callout_drain (&d->timeout_handle))
2500 callout_stop (&d->timeout_handle);
2505 static int cx_modevent (module_t mod, int type, void *unused)
2507 static int load_count = 0;
2512 if (ng_newtype (&typestruct))
2513 printf ("Failed to register ng_cx\n");
2517 callout_init (&timeout_handle, CALLOUT_MPSAFE);
2518 callout_reset (&timeout_handle, hz*5, cx_timeout, 0);
2519 /* Software interrupt. */
2520 swi_add(&tty_intr_event, "cx", cx_softintr, NULL, SWI_TTY,
2521 INTR_MPSAFE, &cx_fast_ih);
2524 if (load_count == 1) {
2525 printf ("Removing device entry for Sigma\n");
2527 ng_rmtype (&typestruct);
2530 /* If we were wait it than it reasserted now, just stop it. */
2531 if (!callout_drain (&timeout_handle))
2532 callout_stop (&timeout_handle);
2533 swi_remove (cx_fast_ih);
2543 static struct ng_type typestruct = {
2544 .version = NG_ABI_VERSION,
2545 .name = NG_CX_NODE_TYPE,
2546 .constructor = ng_cx_constructor,
2547 .rcvmsg = ng_cx_rcvmsg,
2548 .shutdown = ng_cx_rmnode,
2549 .newhook = ng_cx_newhook,
2550 .connect = ng_cx_connect,
2551 .rcvdata = ng_cx_rcvdata,
2552 .disconnect = ng_cx_disconnect,
2557 MODULE_DEPEND (ng_cx, netgraph, NG_ABI_VERSION, NG_ABI_VERSION, NG_ABI_VERSION);
2559 MODULE_DEPEND (isa_cx, sppp, 1, 1, 1);
2561 DRIVER_MODULE (cx, isa, cx_isa_driver, cx_devclass, cx_modevent, NULL);
2562 MODULE_VERSION (cx, 1);