/* * Cronyx-Sigma adapter driver for FreeBSD. * Supports PPP/HDLC and Cisco/HDLC protocol in synchronous mode, * and asyncronous channels with full modem control. * Keepalive protocol implemented in both Cisco and PPP modes. * * Copyright (C) 1994-2002 Cronyx Engineering. * Author: Serge Vakulenko, * * Copyright (C) 1999-2004 Cronyx Engineering. * Rewritten on DDK, ported to NETGRAPH, rewritten for FreeBSD 3.x-5.x by * Kurakin Roman, * * This software is distributed with NO WARRANTIES, not even the implied * warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * Authors grant any other persons or organisations a permission to use, * modify and redistribute this software in source and binary forms, * as long as this message is kept with the software, all derivative * works or modified versions. * * Cronyx Id: if_cx.c,v 1.1.2.23 2004/02/26 17:56:40 rik Exp $ */ #include __FBSDID("$FreeBSD$"); #include #if __FreeBSD_version >= 500000 # define NCX 1 #else # include "cx.h" #endif #if NCX > 0 #include #include #include #include #include #include #include #include #include #include #include #if __FreeBSD_version >= 400000 # include # include # include # include #endif #include #include #include #include #include #include #include #include #if __FreeBSD_version < 500000 #include #include #endif #if __FreeBSD_version >= 400000 # include # if __FreeBSD_version <= 501000 # include # endif #endif #if __FreeBSD_version >= 400000 # include # include # include #else # include # include # include #endif #include "opt_ng_cronyx.h" #ifdef NETGRAPH_CRONYX # include "opt_netgraph.h" # include # include # if __FreeBSD_version >= 400000 # include # else # include # endif #else # include # if __FreeBSD_version < 500000 # include "sppp.h" # if NSPPP <= 0 # error The device cx requires sppp or netgraph. # endif # endif # include # define PP_CISCO IFF_LINK2 #if __FreeBSD_version < 400000 # include # if NBPFILTER > 0 # include # endif #else # if __FreeBSD_version < 500000 # include # endif # include # define NBPFILTER NBPF #endif #endif #if __FreeBSD_version < 502113 #define ttyld_modem(foo, bar) ((*linesw[(foo)->t_line].l_modem)((foo), (bar))) #define ttyld_rint(foo, bar) ((*linesw[(foo)->t_line].l_rint)((bar), (foo))) #define ttyld_start(foo) ((*linesw[(foo)->t_line].l_start)((foo))) #define ttyld_open(foo, bar) ((*linesw[(foo)->t_line].l_open) ((bar), (foo))) #define ttyld_close(foo, bar) ((*linesw[(foo)->t_line].l_close) ((foo), (bar))) #define ttyld_read(foo, bar, barf) ((*linesw[(foo)->t_line].l_read) ((foo), (bar), (barf))) #define ttyld_write(foo, bar, barf) ((*linesw[(foo)->t_line].l_write) ((foo), (bar), (barf))) #endif /* If we don't have Cronyx's sppp version, we don't have fr support via sppp */ #ifndef PP_FR #define PP_FR 0 #endif #define CX_DEBUG(d,s) ({if (d->chan->debug) {\ printf ("%s: ", d->name); printf s;}}) #define CX_DEBUG2(d,s) ({if (d->chan->debug>1) {\ printf ("%s: ", d->name); printf s;}}) #define UNIT(d) (minor(d) & 0x3f) #define IF_CUNIT(d) (minor(d) & 0x40) #define UNIT_CTL 0x3f #define CALLOUT(d) (minor(d) & 0x80) #define CDEV_MAJOR 42 typedef struct _async_q { int beg; int end; #define BF_SZ 14400 int buf[BF_SZ+1]; } async_q; #define AQ_GSZ(q) ((BF_SZ + (q)->end - (q)->beg)%BF_SZ) #define AQ_PUSH(q,c) {*((q)->buf + (q)->end) = c;\ (q)->end = ((q)->end + 1)%BF_SZ;} #define AQ_POP(q,c) {c = *((q)->buf + (q)->beg);\ (q)->beg = ((q)->beg + 1)%BF_SZ;} #if __FreeBSD_version >= 400000 static void cx_identify __P((driver_t *, device_t)); static int cx_probe __P((device_t)); static int cx_attach __P((device_t)); static int cx_detach __P((device_t)); static device_method_t cx_isa_methods [] = { DEVMETHOD(device_identify, cx_identify), DEVMETHOD(device_probe, cx_probe), DEVMETHOD(device_attach, cx_attach), DEVMETHOD(device_detach, cx_detach), {0, 0} }; typedef struct _bdrv_t { cx_board_t *board; struct resource *base_res; struct resource *drq_res; struct resource *irq_res; int base_rid; int drq_rid; int irq_rid; void *intrhand; } bdrv_t; static driver_t cx_isa_driver = { "cx", cx_isa_methods, sizeof (bdrv_t), }; static devclass_t cx_devclass; #endif typedef struct _drv_t { char name [8]; cx_chan_t *chan; cx_board_t *board; cx_buf_t buf; struct tty *tty; struct callout_handle dcd_timeout_handle; unsigned dtrwait; unsigned dtroff; unsigned callout; unsigned lock; int open_dev; int cd; int running; struct callout_handle dtr_timeout_handle; #ifdef NETGRAPH char nodename [NG_NODELEN+1]; hook_p hook; hook_p debug_hook; node_p node; struct ifqueue lo_queue; struct ifqueue hi_queue; short timeout; struct callout_handle timeout_handle; #else struct sppp pp; #endif #if __FreeBSD_version >= 400000 struct cdev *devt[3]; #endif async_q aqueue; #define CX_READ 1 #define CX_WRITE 2 int intr_action; short atimeout; } drv_t; extern long csigma_fw_len; extern const char *csigma_fw_version; extern const char *csigma_fw_date; extern const char *csigma_fw_copyright; extern const cr_dat_tst_t csigma_fw_tvec[]; extern const u_char csigma_fw_data[]; static void cx_oproc (struct tty *tp); static int cx_param (struct tty *tp, struct termios *t); static void cx_stop (struct tty *tp, int flag); static void cx_dtrwakeup (void *a); static void cx_receive (cx_chan_t *c, char *data, int len); static void cx_transmit (cx_chan_t *c, void *attachment, int len); static void cx_error (cx_chan_t *c, int data); static void cx_modem (cx_chan_t *c); static void cx_up (drv_t *d); static void cx_start (drv_t *d); #if __FreeBSD_version < 502113 static void ttyldoptim(struct tty *tp); #endif #if __FreeBSD_version < 500000 static swihand_t cx_softintr; #else static void cx_softintr (void *); static void *cx_fast_ih; #endif static void cx_down (drv_t *d); static void cx_watchdog (drv_t *d); static void cx_carrier (void *arg); #ifdef NETGRAPH extern struct ng_type typestruct; #else static void cx_ifstart (struct ifnet *ifp); static void cx_tlf (struct sppp *sp); static void cx_tls (struct sppp *sp); static void cx_ifwatchdog (struct ifnet *ifp); static int cx_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data); static void cx_initialize (void *softc); #endif static cx_board_t *adapter [NCX]; static drv_t *channel [NCX*NCHAN]; static struct callout_handle led_timo [NCX]; static struct callout_handle timeout_handle; #if __FreeBSD_version >= 400000 extern struct cdevsw cx_cdevsw; #endif static int MY_SOFT_INTR; /* * Print the mbuf chain, for debug purposes only. */ static void printmbuf (struct mbuf *m) { printf ("mbuf:"); for (; m; m=m->m_next) { if (m->m_flags & M_PKTHDR) printf (" HDR %d:", m->m_pkthdr.len); if (m->m_flags & M_EXT) printf (" EXT:"); printf (" %d", m->m_len); } printf ("\n"); } /* * Make an mbuf from data. */ static struct mbuf *makembuf (void *buf, u_int len) { struct mbuf *m, *o, *p; MGETHDR (m, M_DONTWAIT, MT_DATA); if (! m) return 0; if (len >= MINCLSIZE) MCLGET (m, M_DONTWAIT); m->m_pkthdr.len = len; m->m_len = 0; p = m; while (len) { u_int n = M_TRAILINGSPACE (p); if (n > len) n = len; if (! n) { /* Allocate new mbuf. */ o = p; MGET (p, M_DONTWAIT, MT_DATA); if (! p) { m_freem (m); return 0; } if (len >= MINCLSIZE) MCLGET (p, M_DONTWAIT); p->m_len = 0; o->m_next = p; n = M_TRAILINGSPACE (p); if (n > len) n = len; } bcopy (buf, mtod (p, caddr_t) + p->m_len, n); p->m_len += n; buf = n + (char*) buf; len -= n; } return m; } /* * Recover after lost transmit interrupts. */ static void cx_timeout (void *arg) { drv_t *d; int s, i; for (i=0; iatimeout == 1 && d->tty && d->tty->t_state & TS_BUSY) { d->tty->t_state &= ~TS_BUSY; if (d->tty->t_dev) { d->intr_action |= CX_WRITE; MY_SOFT_INTR = 1; #if __FreeBSD_version >= 500000 swi_sched (cx_fast_ih, 0); #else setsofttty (); #endif } CX_DEBUG (d, ("cx_timeout\n")); } if (d->atimeout) d->atimeout--; splx (s); } timeout_handle = timeout (cx_timeout, 0, hz*5); } static void cx_led_off (void *arg) { cx_board_t *b = arg; int s = splhigh (); cx_led (b, 0); led_timo[b->num].callout = 0; splx (s); } /* * Activate interupt handler from DDK. */ #if __FreeBSD_version >= 400000 static void cx_intr (void *arg) { bdrv_t *bd = arg; cx_board_t *b = bd->board; #else static void cx_intr (int bnum) { cx_board_t *b = adapter [bnum]; #endif int s = splhigh (); /* Turn LED on. */ cx_led (b, 1); cx_int_handler (b); /* Turn LED off 50 msec later. */ if (! led_timo[b->num].callout) led_timo[b->num] = timeout (cx_led_off, b, hz/20); splx (s); } static int probe_irq (cx_board_t *b, int irq) { int mask, busy, cnt; /* Clear pending irq, if any. */ cx_probe_irq (b, -irq); DELAY (100); for (cnt=0; cnt<5; ++cnt) { /* Get the mask of pending irqs, assuming they are busy. * Activate the adapter on given irq. */ busy = cx_probe_irq (b, irq); DELAY (100); /* Get the mask of active irqs. * Deactivate our irq. */ mask = cx_probe_irq (b, -irq); DELAY (100); if ((mask & ~busy) == 1 << irq) { cx_probe_irq (b, 0); /* printf ("cx%d: irq %d ok, mask=0x%04x, busy=0x%04x\n", b->num, irq, mask, busy); */ return 1; } } /* printf ("cx%d: irq %d not functional, mask=0x%04x, busy=0x%04x\n", b->num, irq, mask, busy); */ cx_probe_irq (b, 0); return 0; } static short porttab [] = { 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0x300, 0x320, 0x340, 0x360, 0x380, 0x3a0, 0x3c0, 0x3e0, 0 }; static char dmatab [] = { 7, 6, 5, 0 }; static char irqtab [] = { 5, 10, 11, 7, 3, 15, 12, 0 }; #if __FreeBSD_version >= 400000 static int cx_is_free_res (device_t dev, int rid, int type, u_long start, u_long end, u_long count) { struct resource *res; if (!(res = bus_alloc_resource (dev, type, &rid, start, end, count, RF_ALLOCATED))) return 0; bus_release_resource (dev, type, rid, res); return 1; } static void cx_identify (driver_t *driver, device_t dev) { u_long iobase, rescount; int devcount; device_t *devices; device_t child; devclass_t my_devclass; int i, k; if ((my_devclass = devclass_find ("cx")) == NULL) return; devclass_get_devices (my_devclass, &devices, &devcount); if (devcount == 0) { /* We should find all devices by our self. We could alter other * devices, but we don't have a choise */ for (i = 0; (iobase = porttab [i]) != 0; i++) { if (!cx_is_free_res (dev, 1, SYS_RES_IOPORT, iobase, iobase + NPORT, NPORT)) continue; if (cx_probe_board (iobase, -1, -1) == 0) continue; devcount++; child = BUS_ADD_CHILD (dev, ISA_ORDER_SPECULATIVE, "cx", -1); if (child == NULL) return; device_set_desc_copy (child, "Cronyx Sigma"); device_set_driver (child, driver); bus_set_resource (child, SYS_RES_IOPORT, 0, iobase, NPORT); if (devcount >= NCX) break; } } else { static short porttab [] = { 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0x300, 0x320, 0x340, 0x360, 0x380, 0x3a0, 0x3c0, 0x3e0, 0 }; /* Lets check user choise. */ for (k = 0; k < devcount; k++) { if (bus_get_resource (devices[k], SYS_RES_IOPORT, 0, &iobase, &rescount) != 0) continue; for (i = 0; porttab [i] != 0; i++) { if (porttab [i] != iobase) continue; if (!cx_is_free_res (devices[k], 1, SYS_RES_IOPORT, iobase, iobase + NPORT, NPORT)) continue; if (cx_probe_board (iobase, -1, -1) == 0) continue; porttab [i] = -1; device_set_desc_copy (devices[k], "Cronyx Sigma"); break; } if (porttab [i] == 0) { device_delete_child ( device_get_parent (devices[k]), devices [k]); devices[k] = 0; continue; } } for (k = 0; k < devcount; k++) { if (devices[k] == 0) continue; if (bus_get_resource (devices[k], SYS_RES_IOPORT, 0, &iobase, &rescount) == 0) continue; for (i = 0; (iobase = porttab [i]) != 0; i++) { if (porttab [i] == -1) { continue; } if (!cx_is_free_res (devices[k], 1, SYS_RES_IOPORT, iobase, iobase + NPORT, NPORT)) continue; if (cx_probe_board (iobase, -1, -1) == 0) continue; bus_set_resource (devices[k], SYS_RES_IOPORT, 0, iobase, NPORT); porttab [i] = -1; device_set_desc_copy (devices[k], "Cronyx Sigma"); break; } if (porttab [i] == 0) { device_delete_child ( device_get_parent (devices[k]), devices [k]); } } free (devices, M_TEMP); } return; } static int cx_probe (device_t dev) { int unit = device_get_unit (dev); int i; u_long iobase, rescount; if (!device_get_desc (dev) || strcmp (device_get_desc (dev), "Cronyx Sigma")) return ENXIO; if (bus_get_resource (dev, SYS_RES_IOPORT, 0, &iobase, &rescount) != 0) { printf ("cx%d: Couldn't get IOPORT\n", unit); return ENXIO; } if (!cx_is_free_res (dev, 1, SYS_RES_IOPORT, iobase, iobase + NPORT, NPORT)) { printf ("cx%d: Resource IOPORT isn't free %lx\n", unit, iobase); return ENXIO; } for (i = 0; porttab [i] != 0; i++) { if (porttab [i] == iobase) { porttab [i] = -1; break; } } if (porttab [i] == 0) { return ENXIO; } if (!cx_probe_board (iobase, -1, -1)) { printf ("cx%d: probing for Sigma at %lx faild\n", unit, iobase); return ENXIO; } return 0; } #else /* __FreeBSD_version < 400000 */ static int cx_probe (struct isa_device *id) { cx_board_t *b; int i; #ifndef NETGRAPH if (! sppp_attach) { printf ("cx%d: no synchronous PPP driver configured\n", id->id_unit); return 0; } #endif if (id->id_iobase < 0) { /* Autodetect the adapter. */ for (i=0; ; i++) { if (! porttab[i]) { id->id_iobase = -1; return 0; } id->id_iobase = porttab[i]; if (id->id_unit > 0 && adapter[0] && adapter[0]->port == id->id_iobase) continue; if (id->id_unit > 1 && adapter[1] && adapter[1]->port == id->id_iobase) continue; if (! haveseen_isadev (id, CC_IOADDR | CC_QUIET) && cx_probe_board (id->id_iobase, -1, -1)) break; } } else if (! cx_probe_board (id->id_iobase, -1, -1)) return 0; if (id->id_drq < 0) { /* Find available 16-bit DRQ. */ for (i=0; ; ++i) { if (! dmatab[i]) { printf ("cx%d: no available drq found\n", id->id_unit); id->id_drq = -1; return 0; } id->id_drq = dmatab[i]; if (! haveseen_isadev (id, CC_DRQ | CC_QUIET) && !isa_dma_acquire (id->id_drq)) break; } } b = malloc (sizeof (cx_board_t), M_DEVBUF, M_WAITOK); if (!b) { printf ("cx:%d: Couldn't allocate memory\n", id->id_unit); return (ENXIO); } adapter[id->id_unit] = b; bzero (b, sizeof(cx_board_t)); if (! cx_open_board (b, id->id_unit, id->id_iobase, id->id_irq ? ffs (id->id_irq) - 1 : -1, id->id_drq)) { printf ("cx%d: cannot initialize adapter\n", id->id_unit); isa_dma_release (id->id_drq); adapter[id->id_unit] = 0; free (b, M_DEVBUF); return 0; } if (id->id_irq) { if (! probe_irq (b, ffs (id->id_irq) - 1)) printf ("cx%d: irq %d not functional\n", id->id_unit, ffs (id->id_irq) - 1); } else { /* Find available IRQ. */ for (i=0; ; ++i) { if (! irqtab[i]) { printf ("cx%d: no available irq found\n", id->id_unit); id->id_irq = -1; isa_dma_release (id->id_drq); adapter[id->id_unit] = 0; free (b, M_DEVBUF); return 0; } id->id_irq = 1 << irqtab[i]; if (haveseen_isadev (id, CC_IRQ | CC_QUIET)) continue; #ifdef KLD_MODULE if (register_intr (irqtab[i], 0, 0, (inthand2_t*) cx_intr, &net_imask, id->id_unit) != 0) continue; unregister_intr (irqtab[i], (inthand2_t*) cx_intr); #endif if (probe_irq (b, irqtab[i])) break; } } cx_init (b, b->num, b->port, ffs (id->id_irq) - 1, b->dma); cx_setup_board (b, 0, 0, 0); return 1; } #endif /* __FreeBSD_version < 400000 */ /* * The adapter is present, initialize the driver structures. */ #if __FreeBSD_version < 400000 static int cx_attach (struct isa_device *id) { #else static int cx_attach (device_t dev) { bdrv_t *bd = device_get_softc (dev); u_long iobase, drq, irq, rescount; int unit = device_get_unit (dev); int i; int s; #endif cx_board_t *b; cx_chan_t *c; drv_t *d; #if __FreeBSD_version >= 400000 KASSERT ((bd != NULL), ("cx%d: NULL device softc\n", unit)); bus_get_resource (dev, SYS_RES_IOPORT, 0, &iobase, &rescount); bd->base_rid = 0; bd->base_res = bus_alloc_resource (dev, SYS_RES_IOPORT, &bd->base_rid, iobase, iobase + NPORT, NPORT, RF_ACTIVE); if (! bd->base_res) { printf ("cx%d: cannot allocate base address\n", unit); return ENXIO; } if (bus_get_resource (dev, SYS_RES_DRQ, 0, &drq, &rescount) != 0) { for (i = 0; (drq = dmatab [i]) != 0; i++) { if (!cx_is_free_res (dev, 1, SYS_RES_DRQ, drq, drq + 1, 1)) continue; bus_set_resource (dev, SYS_RES_DRQ, 0, drq, 1); break; } if (dmatab[i] == 0) { bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, bd->base_res); printf ("cx%d: Couldn't get DRQ\n", unit); return ENXIO; } } bd->drq_rid = 0; bd->drq_res = bus_alloc_resource (dev, SYS_RES_DRQ, &bd->drq_rid, drq, drq + 1, 1, RF_ACTIVE); if (! bd->drq_res) { printf ("cx%d: cannot allocate drq\n", unit); bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, bd->base_res); return ENXIO; } if (bus_get_resource (dev, SYS_RES_IRQ, 0, &irq, &rescount) != 0) { for (i = 0; (irq = irqtab [i]) != 0; i++) { if (!cx_is_free_res (dev, 1, SYS_RES_IRQ, irq, irq + 1, 1)) continue; bus_set_resource (dev, SYS_RES_IRQ, 0, irq, 1); break; } if (irqtab[i] == 0) { bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid, bd->drq_res); bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, bd->base_res); printf ("cx%d: Couldn't get IRQ\n", unit); return ENXIO; } } bd->irq_rid = 0; bd->irq_res = bus_alloc_resource (dev, SYS_RES_IRQ, &bd->irq_rid, irq, irq + 1, 1, RF_ACTIVE); if (! bd->irq_res) { printf ("cx%d: Couldn't allocate irq\n", unit); bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid, bd->drq_res); bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, bd->base_res); return ENXIO; } b = malloc (sizeof (cx_board_t), M_DEVBUF, M_WAITOK); if (!b) { printf ("cx:%d: Couldn't allocate memory\n", unit); return (ENXIO); } adapter[unit] = b; bzero (b, sizeof(cx_board_t)); if (! cx_open_board (b, unit, iobase, irq, drq)) { printf ("cx%d: error loading firmware\n", unit); free (b, M_DEVBUF); bus_release_resource (dev, SYS_RES_IRQ, bd->irq_rid, bd->irq_res); bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid, bd->drq_res); bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, bd->base_res); return ENXIO; } bd->board = b; if (! probe_irq (b, irq)) { printf ("cx%d: irq %ld not functional\n", unit, irq); bd->board = 0; adapter [unit] = 0; free (b, M_DEVBUF); bus_release_resource (dev, SYS_RES_IRQ, bd->irq_rid, bd->irq_res); bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid, bd->drq_res); bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, bd->base_res); return ENXIO; } s = splhigh (); if (bus_setup_intr (dev, bd->irq_res, INTR_TYPE_NET, cx_intr, bd, &bd->intrhand)) { printf ("cx%d: Can't setup irq %ld\n", unit, irq); bd->board = 0; adapter [unit] = 0; free (b, M_DEVBUF); bus_release_resource (dev, SYS_RES_IRQ, bd->irq_rid, bd->irq_res); bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid, bd->drq_res); bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, bd->base_res); splx (s); return ENXIO; } cx_init (b, b->num, b->port, irq, drq); cx_setup_board (b, 0, 0, 0); #else /* __FreeBSD_version >= 400000 */ b = adapter[id->id_unit]; #endif /* __FreeBSD_version >= 400000 */ printf ("cx%d: \n", b->num, b->name); #if __FreeBSD_version < 400000 id->id_ointr = cx_intr; #endif for (c=b->chan; cchan+NCHAN; ++c) { #if __FreeBSD_version >= 400000 char *dnmt="tty %x"; char *dnmc="cua %x"; #endif if (c->type == T_NONE) continue; d = contigmalloc (sizeof(drv_t), M_DEVBUF, M_WAITOK, 0x100000, 0x1000000, 16, 0); channel [b->num*NCHAN + c->num] = d; bzero (d, sizeof(drv_t)); sprintf (d->name, "cx%d.%d", b->num, c->num); d->board = b; d->chan = c; d->dtrwait = 3 * hz; /* Default DTR off timeout is 3 seconds. */ d->open_dev = 0; c->sys = d; switch (c->type) { case T_SYNC_RS232: case T_SYNC_V35: case T_SYNC_RS449: case T_UNIV: case T_UNIV_RS232: case T_UNIV_RS449: case T_UNIV_V35: #ifdef NETGRAPH if (ng_make_node_common (&typestruct, &d->node) != 0) { printf ("%s: cannot make common node\n", d->name); channel [b->num*NCHAN + c->num] = 0; c->sys = 0; #if __FreeBSD_version < 400000 free (d, M_DEVBUF); #else contigfree (d, sizeof (*d), M_DEVBUF); #endif continue; } #if __FreeBSD_version >= 500000 NG_NODE_SET_PRIVATE (d->node, d); #else d->node->private = d; #endif sprintf (d->nodename, "%s%d", NG_CX_NODE_TYPE, c->board->num*NCHAN + c->num); if (ng_name_node (d->node, d->nodename)) { printf ("%s: cannot name node\n", d->nodename); #if __FreeBSD_version >= 500000 NG_NODE_UNREF (d->node); #else ng_rmnode (d->node); ng_unref (d->node); #endif channel [b->num*NCHAN + c->num] = 0; c->sys = 0; #if __FreeBSD_version < 400000 free (d, M_DEVBUF); #else contigfree (d, sizeof (*d), M_DEVBUF); #endif continue; } d->lo_queue.ifq_maxlen = IFQ_MAXLEN; d->hi_queue.ifq_maxlen = IFQ_MAXLEN; #if __FreeBSD_version >= 500000 mtx_init (&d->lo_queue.ifq_mtx, "cx_queue_lo", NULL, MTX_DEF); mtx_init (&d->hi_queue.ifq_mtx, "cx_queue_hi", NULL, MTX_DEF); #endif #else /*NETGRAPH*/ d->pp.pp_if.if_softc = d; #if __FreeBSD_version > 501000 if_initname (&d->pp.pp_if, "cx", b->num * NCHAN + c->num); #else d->pp.pp_if.if_unit = b->num * NCHAN + c->num; d->pp.pp_if.if_name = "cx"; #endif d->pp.pp_if.if_mtu = PP_MTU; d->pp.pp_if.if_flags = IFF_POINTOPOINT | IFF_MULTICAST; d->pp.pp_if.if_ioctl = cx_sioctl; d->pp.pp_if.if_start = cx_ifstart; d->pp.pp_if.if_watchdog = cx_ifwatchdog; d->pp.pp_if.if_init = cx_initialize; sppp_attach (&d->pp.pp_if); if_attach (&d->pp.pp_if); d->pp.pp_tlf = cx_tlf; d->pp.pp_tls = cx_tls; #if __FreeBSD_version >= 400000 || NBPFILTER > 0 /* If BPF is in the kernel, call the attach for it. * Size of PPP header is 4 bytes. */ bpfattach (&d->pp.pp_if, DLT_PPP, 4); #endif #endif /*NETGRAPH*/ } cx_start_chan (c, &d->buf, vtophys (&d->buf)); cx_register_receive (c, &cx_receive); cx_register_transmit (c, &cx_transmit); cx_register_error (c, &cx_error); cx_register_modem (c, &cx_modem); #if __FreeBSD_version >= 400000 dnmt[3] = 'x'+b->num; dnmc[3] = 'x'+b->num; d->devt[0] = make_dev (&cx_cdevsw, b->num*NCHAN + c->num, UID_ROOT, GID_WHEEL, 0644, dnmt, b->num*NCHAN + c->num); d->devt[1] = make_dev (&cx_cdevsw, b->num*NCHAN + c->num + 64, UID_ROOT, GID_WHEEL, 0600, "cx%d", b->num*NCHAN + c->num); d->devt[2] = make_dev (&cx_cdevsw, b->num*NCHAN + c->num + 128, UID_ROOT, GID_WHEEL, 0660, dnmc, b->num*NCHAN + c->num); } splx (s); return 0; #else /* __FreeBSD_version < 400000 */ } return 1; #endif } #if __FreeBSD_version >= 400000 static int cx_detach (device_t dev) { bdrv_t *bd = device_get_softc (dev); cx_board_t *b = bd->board; cx_chan_t *c; int s = splhigh (); /* Check if the device is busy (open). */ for (c = b->chan; c < b->chan + NCHAN; ++c) { drv_t *d = (drv_t*) c->sys; if (!d || d->chan->type == T_NONE) continue; if (d->lock) { splx (s); return EBUSY; } if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) && (d->open_dev|0x2)) { splx (s); return EBUSY; } if (d->running) { splx (s); return EBUSY; } } /* Deactivate the timeout routine. And soft interrupt*/ if (led_timo[b->num].callout) untimeout (cx_led_off, b, led_timo[b->num]); for (c = b->chan; c < b->chan + NCHAN; ++c) { drv_t *d = c->sys; if (!d || d->chan->type == T_NONE) continue; if (d->dtr_timeout_handle.callout) untimeout (cx_dtrwakeup, d, d->dtr_timeout_handle); if (d->dcd_timeout_handle.callout) untimeout (cx_carrier, c, d->dcd_timeout_handle); } bus_teardown_intr (dev, bd->irq_res, bd->intrhand); bus_deactivate_resource (dev, SYS_RES_IRQ, bd->irq_rid, bd->irq_res); bus_release_resource (dev, SYS_RES_IRQ, bd->irq_rid, bd->irq_res); bus_deactivate_resource (dev, SYS_RES_DRQ, bd->drq_rid, bd->drq_res); bus_release_resource (dev, SYS_RES_DRQ, bd->drq_rid, bd->drq_res); bus_deactivate_resource (dev, SYS_RES_IOPORT, bd->base_rid, bd->irq_res); bus_release_resource (dev, SYS_RES_IOPORT, bd->base_rid, bd->base_res); cx_close_board (b); /* Detach the interfaces, free buffer memory. */ for (c = b->chan; c < b->chan + NCHAN; ++c) { drv_t *d = (drv_t*) c->sys; if (!d || d->chan->type == T_NONE) continue; #if __FreeBSD_version >= 502113 if (d->tty) { ttyrel (d->tty); d->tty = NULL; } #endif #ifdef NETGRAPH #if __FreeBSD_version >= 500000 if (d->node) { ng_rmnode_self (d->node); NG_NODE_UNREF (d->node); d->node = NULL; } mtx_destroy (&d->lo_queue.ifq_mtx); mtx_destroy (&d->hi_queue.ifq_mtx); #else ng_rmnode (d->node); d->node = NULL; #endif #else #if __FreeBSD_version >= 410000 && NBPFILTER > 0 /* Detach from the packet filter list of interfaces. */ bpfdetach (&d->pp.pp_if); #endif /* Detach from the sync PPP list. */ sppp_detach (&d->pp.pp_if); if_detach (&d->pp.pp_if); #endif destroy_dev (d->devt[0]); destroy_dev (d->devt[1]); destroy_dev (d->devt[2]); } cx_led_off (b); if (led_timo[b->num].callout) untimeout (cx_led_off, b, led_timo[b->num]); splx (s); s = splhigh (); for (c = b->chan; c < b->chan + NCHAN; ++c) { drv_t *d = (drv_t*) c->sys; if (!d || d->chan->type == T_NONE) continue; /* Deallocate buffers. */ contigfree (d, sizeof (*d), M_DEVBUF); } bd->board = 0; adapter [b->num] = 0; free (b, M_DEVBUF); splx (s); return 0; } #endif #ifndef NETGRAPH static void cx_ifstart (struct ifnet *ifp) { drv_t *d = ifp->if_softc; cx_start (d); } static void cx_ifwatchdog (struct ifnet *ifp) { drv_t *d = ifp->if_softc; cx_watchdog (d); } static void cx_tlf (struct sppp *sp) { drv_t *d = sp->pp_if.if_softc; CX_DEBUG (d, ("cx_tlf\n")); /* cx_set_dtr (d->chan, 0);*/ /* cx_set_rts (d->chan, 0);*/ sp->pp_down (sp); } static void cx_tls (struct sppp *sp) { drv_t *d = sp->pp_if.if_softc; CX_DEBUG (d, ("cx_tls\n")); sp->pp_up (sp); } /* * Initialization of interface. * It seems to be never called by upper level. */ static void cx_initialize (void *softc) { drv_t *d = softc; CX_DEBUG (d, ("cx_initialize\n")); } /* * Process an ioctl request. */ static int cx_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data) { drv_t *d = ifp->if_softc; int error, s, was_up, should_be_up; /* No socket ioctls while the channel is in async mode. */ if (d->chan->type == T_NONE || d->chan->mode == M_ASYNC) return EBUSY; /* Socket ioctls on slave subchannels are not allowed. */ was_up = (ifp->if_flags & IFF_RUNNING) != 0; error = sppp_ioctl (ifp, cmd, data); if (error) return error; if (! (ifp->if_flags & IFF_DEBUG)) d->chan->debug = 0; else if (! d->chan->debug) d->chan->debug = 1; switch (cmd) { default: CX_DEBUG2 (d, ("ioctl 0x%lx\n", cmd)); return 0; case SIOCADDMULTI: CX_DEBUG2 (d, ("SIOCADDMULTI\n")); return 0; case SIOCDELMULTI: CX_DEBUG2 (d, ("SIOCDELMULTI\n")); return 0; case SIOCSIFFLAGS: CX_DEBUG2 (d, ("SIOCSIFFLAGS\n")); break; case SIOCSIFADDR: CX_DEBUG2 (d, ("SIOCSIFADDR\n")); break; } /* We get here only in case of SIFFLAGS or SIFADDR. */ s = splhigh (); should_be_up = (ifp->if_flags & IFF_RUNNING) != 0; if (!was_up && should_be_up) { /* Interface goes up -- start it. */ cx_up (d); cx_start (d); } else if (was_up && !should_be_up) { /* Interface is going down -- stop it. */ /* if ((d->pp.pp_flags & PP_FR) || (ifp->if_flags & PP_CISCO))*/ cx_down (d); } splx (s); return 0; } #endif /*NETGRAPH*/ /* * Stop the interface. Called on splimp(). */ static void cx_down (drv_t *d) { int s = splhigh (); CX_DEBUG (d, ("cx_down\n")); cx_set_dtr (d->chan, 0); cx_set_rts (d->chan, 0); d->running = 0; splx (s); } /* * Start the interface. Called on splimp(). */ static void cx_up (drv_t *d) { int s = splhigh (); CX_DEBUG (d, ("cx_up\n")); cx_set_dtr (d->chan, 1); cx_set_rts (d->chan, 1); d->running = 1; splx (s); } /* * Start output on the (slave) interface. Get another datagram to send * off of the interface queue, and copy it to the interface * before starting the output. */ static void cx_send (drv_t *d) { struct mbuf *m; u_short len; CX_DEBUG2 (d, ("cx_send\n")); /* No output if the interface is down. */ if (! d->running) return; /* No output if the modem is off. */ if (! cx_get_dsr (d->chan) && ! cx_get_loop(d->chan)) return; if (cx_buf_free (d->chan)) { /* Get the packet to send. */ #ifdef NETGRAPH IF_DEQUEUE (&d->hi_queue, m); if (! m) IF_DEQUEUE (&d->lo_queue, m); #else m = sppp_dequeue (&d->pp.pp_if); #endif if (! m) return; #if (__FreeBSD_version >= 400000 || NBPFILTER > 0) && !defined (NETGRAPH) if (d->pp.pp_if.if_bpf) #if __FreeBSD_version >= 500000 BPF_MTAP (&d->pp.pp_if, m); #else bpf_mtap (&d->pp.pp_if, m); #endif #endif len = m->m_pkthdr.len; if (! m->m_next) cx_send_packet (d->chan, (u_char*)mtod (m, caddr_t), len, 0); else { u_char buf [DMABUFSZ]; m_copydata (m, 0, len, buf); cx_send_packet (d->chan, buf, len, 0); } m_freem (m); /* Set up transmit timeout, 10 seconds. */ #ifdef NETGRAPH d->timeout = 10; #else d->pp.pp_if.if_timer = 10; #endif } #ifndef NETGRAPH d->pp.pp_if.if_flags |= IFF_OACTIVE; #endif } /* * Start output on the interface. * Always called on splimp(). */ static void cx_start (drv_t *d) { int s = splhigh (); if (d->running) { if (! d->chan->dtr) cx_set_dtr (d->chan, 1); if (! d->chan->rts) cx_set_rts (d->chan, 1); cx_send (d); } splx (s); } /* * Handle transmit timeouts. * Recover after lost transmit interrupts. * Always called on splimp(). */ static void cx_watchdog (drv_t *d) { int s = splhigh (); CX_DEBUG (d, ("device timeout\n")); if (d->running) { cx_setup_chan (d->chan); cx_start_chan (d->chan, 0, 0); cx_set_dtr (d->chan, 1); cx_set_rts (d->chan, 1); cx_start (d); } splx (s); } /* * Transmit callback function. */ static void cx_transmit (cx_chan_t *c, void *attachment, int len) { drv_t *d = c->sys; if (!d) return; if (c->mode == M_ASYNC && d->tty) { d->tty->t_state &= ~(TS_BUSY | TS_FLUSH); d->atimeout = 0; if (d->tty->t_dev) { d->intr_action |= CX_WRITE; MY_SOFT_INTR = 1; #if __FreeBSD_version >= 500000 swi_sched (cx_fast_ih, 0); #else setsofttty (); #endif } return; } #ifdef NETGRAPH d->timeout = 0; #else ++d->pp.pp_if.if_opackets; d->pp.pp_if.if_flags &= ~IFF_OACTIVE; d->pp.pp_if.if_timer = 0; #endif cx_start (d); } /* * Process the received packet. */ static void cx_receive (cx_chan_t *c, char *data, int len) { drv_t *d = c->sys; struct mbuf *m; char *cc = data; #if __FreeBSD_version >= 500000 && defined NETGRAPH int error; #endif if (!d) return; if (c->mode == M_ASYNC && d->tty) { if (d->tty->t_state & TS_ISOPEN) { async_q *q = &d->aqueue; int size = BF_SZ - 1 - AQ_GSZ (q); if (len <= 0 && !size) return; if (len > size) { c->ierrs++; cx_error (c, CX_OVERRUN); len = size - 1; } while (len--) { AQ_PUSH (q, *(unsigned char *)cc); cc++; } d->intr_action |= CX_READ; MY_SOFT_INTR = 1; #if __FreeBSD_version >= 500000 swi_sched (cx_fast_ih, 0); #else setsofttty (); #endif } return; } if (! d->running) return; m = makembuf (data, len); if (! m) { CX_DEBUG (d, ("no memory for packet\n")); #ifndef NETGRAPH ++d->pp.pp_if.if_iqdrops; #endif return; } if (c->debug > 1) printmbuf (m); #ifdef NETGRAPH m->m_pkthdr.rcvif = 0; #if __FreeBSD_version >= 500000 NG_SEND_DATA_ONLY (error, d->hook, m); #else ng_queue_data (d->hook, m, 0); #endif #else ++d->pp.pp_if.if_ipackets; m->m_pkthdr.rcvif = &d->pp.pp_if; #if __FreeBSD_version >= 400000 || NBPFILTER > 0 /* Check if there's a BPF listener on this interface. * If so, hand off the raw packet to bpf. */ if (d->pp.pp_if.if_bpf) #if __FreeBSD_version >= 500000 BPF_TAP (&d->pp.pp_if, data, len); #else bpf_tap (&d->pp.pp_if, data, len); #endif #endif sppp_input (&d->pp.pp_if, m); #endif } #if __FreeBSD_version < 502113 #define CONDITION(t,tp) (!(t->c_iflag & (ICRNL | IGNCR | IMAXBEL | INLCR | ISTRIP | IXON))\ && (!(tp->t_iflag & BRKINT) || (tp->t_iflag & IGNBRK))\ && (!(tp->t_iflag & PARMRK)\ || (tp->t_iflag & (IGNPAR | IGNBRK)) == (IGNPAR | IGNBRK))\ && !(t->c_lflag & (ECHO | ICANON | IEXTEN | ISIG | PENDIN))\ && linesw[tp->t_line].l_rint == ttyinput) #else #define CONDITION(t,tp) (!(t->c_iflag & (ICRNL | IGNCR | IMAXBEL | INLCR | ISTRIP | IXON))\ && (!(tp->t_iflag & BRKINT) || (tp->t_iflag & IGNBRK))\ && (!(tp->t_iflag & PARMRK)\ || (tp->t_iflag & (IGNPAR | IGNBRK)) == (IGNPAR | IGNBRK))\ && !(t->c_lflag & (ECHO | ICANON | IEXTEN | ISIG | PENDIN))\ && linesw[tp->t_line]->l_rint == ttyinput) #endif /* * Error callback function. */ static void cx_error (cx_chan_t *c, int data) { drv_t *d = c->sys; async_q *q; if (!d) return; q = &(d->aqueue); switch (data) { case CX_FRAME: CX_DEBUG (d, ("frame error\n")); if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) && (AQ_GSZ (q) < BF_SZ - 1) && (!CONDITION((&d->tty->t_termios), (d->tty)) || !(d->tty->t_iflag & (IGNPAR | PARMRK)))) { AQ_PUSH (q, TTY_FE); d->intr_action |= CX_READ; MY_SOFT_INTR = 1; #if __FreeBSD_version >= 500000 swi_sched (cx_fast_ih, 0); #else setsofttty (); #endif } #ifndef NETGRAPH else ++d->pp.pp_if.if_ierrors; #endif break; case CX_CRC: CX_DEBUG (d, ("crc error\n")); if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) && (AQ_GSZ (q) < BF_SZ - 1) && (!CONDITION((&d->tty->t_termios), (d->tty)) || !(d->tty->t_iflag & INPCK) || !(d->tty->t_iflag & (IGNPAR | PARMRK)))) { AQ_PUSH (q, TTY_PE); d->intr_action |= CX_READ; MY_SOFT_INTR = 1; #if __FreeBSD_version >= 500000 swi_sched (cx_fast_ih, 0); #else setsofttty (); #endif } #ifndef NETGRAPH else ++d->pp.pp_if.if_ierrors; #endif break; case CX_OVERRUN: CX_DEBUG (d, ("overrun error\n")); #ifdef TTY_OE if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) && (AQ_GSZ (q) < BF_SZ - 1) && (!CONDITION((&d->tty->t_termios), (d->tty)))) { AQ_PUSH (q, TTY_OE); d->intr_action |= CX_READ; MY_SOFT_INTR = 1; #if __FreeBSD_version >= 500000 swi_sched (cx_fast_ih, 0); #else setsofttty (); #endif } #endif #ifndef NETGRAPH else { ++d->pp.pp_if.if_collisions; ++d->pp.pp_if.if_ierrors; } #endif break; case CX_OVERFLOW: CX_DEBUG (d, ("overflow error\n")); #ifndef NETGRAPH if (c->mode != M_ASYNC) ++d->pp.pp_if.if_ierrors; #endif break; case CX_UNDERRUN: CX_DEBUG (d, ("underrun error\n")); if (c->mode != M_ASYNC) { #ifdef NETGRAPH d->timeout = 0; #else ++d->pp.pp_if.if_oerrors; d->pp.pp_if.if_flags &= ~IFF_OACTIVE; d->pp.pp_if.if_timer = 0; cx_start (d); #endif } break; case CX_BREAK: CX_DEBUG (d, ("break error\n")); if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) && (AQ_GSZ (q) < BF_SZ - 1) && (!CONDITION((&d->tty->t_termios), (d->tty)) || !(d->tty->t_iflag & (IGNBRK | BRKINT | PARMRK)))) { AQ_PUSH (q, TTY_BI); d->intr_action |= CX_READ; MY_SOFT_INTR = 1; #if __FreeBSD_version >= 500000 swi_sched (cx_fast_ih, 0); #else setsofttty (); #endif } #ifndef NETGRAPH else ++d->pp.pp_if.if_ierrors; #endif break; default: CX_DEBUG (d, ("error #%d\n", data)); } } #if __FreeBSD_version < 500000 static int cx_open (dev_t dev, int flag, int mode, struct proc *p) #else static int cx_open (struct cdev *dev, int flag, int mode, struct thread *td) #endif { int unit = UNIT (dev); drv_t *d; int error; if (unit >= NCX*NCHAN || ! (d = channel[unit])) return ENXIO; CX_DEBUG2 (d, ("cx_open unit=%d, flag=0x%x, mode=0x%x\n", unit, flag, mode)); if (d->chan->mode != M_ASYNC || IF_CUNIT(dev)) { d->open_dev |= 0x1; return 0; } if (!d->tty) { d->tty = ttymalloc (d->tty); d->tty->t_oproc = cx_oproc; d->tty->t_param = cx_param; #if __FreeBSD_version >= 400000 d->tty->t_stop = cx_stop; #endif } #if __FreeBSD_version >= 400000 dev->si_tty = d->tty; #endif d->tty->t_dev = dev; again: if (d->dtroff) { error = tsleep (&d->dtrwait, TTIPRI | PCATCH, "cxdtr", 0); if (error) return error; goto again; } if ((d->tty->t_state & TS_ISOPEN) && (d->tty->t_state & TS_XCLUDE) && #if __FreeBSD_version >= 500000 suser (td)) #else p->p_ucred->cr_uid != 0) #endif return EBUSY; if (d->tty->t_state & TS_ISOPEN) { /* * Cannot open /dev/cua if /dev/tty already opened. */ if (CALLOUT (dev) && ! d->callout) return EBUSY; /* * Opening /dev/tty when /dev/cua is already opened. * Wait for close, then try again. */ if (! CALLOUT (dev) && d->callout) { if (flag & O_NONBLOCK) return EBUSY; error = tsleep (d, TTIPRI | PCATCH, "cxbi", 0); if (error) return error; goto again; } } else if (d->lock && ! CALLOUT (dev) && (flag & O_NONBLOCK)) /* * We try to open /dev/tty in non-blocking mode * while somebody is already waiting for carrier on it. */ return EBUSY; else { ttychars (d->tty); if (d->tty->t_ispeed == 0) { d->tty->t_iflag = 0; d->tty->t_oflag = 0; d->tty->t_lflag = 0; d->tty->t_cflag = CREAD | CS8 | HUPCL; d->tty->t_ispeed = d->chan->rxbaud; d->tty->t_ospeed = d->chan->txbaud; } if (CALLOUT (dev)) d->tty->t_cflag |= CLOCAL; else d->tty->t_cflag &= ~CLOCAL; cx_param (d->tty, &d->tty->t_termios); ttsetwater (d->tty); } splhigh (); if (! (d->tty->t_state & TS_ISOPEN)) { cx_start_chan (d->chan, 0, 0); cx_set_dtr (d->chan, 1); cx_set_rts (d->chan, 1); d->cd = cx_get_cd (d->chan); if (CALLOUT (dev) || cx_get_cd (d->chan)) ttyld_modem(d->tty, 1); } if (! (flag & O_NONBLOCK) && ! (d->tty->t_cflag & CLOCAL) && ! (d->tty->t_state & TS_CARR_ON)) { /* Lock the channel against cxconfig while we are * waiting for carrier. */ d->lock++; error = tsleep (&d->tty->t_rawq, TTIPRI | PCATCH, "cxdcd", 0); /* Unlock the channel. */ d->lock--; spl0 (); if (error) goto failed; goto again; } error = ttyld_open (d->tty, dev); ttyldoptim (d->tty); spl0 (); if (error) { failed: if (! (d->tty->t_state & TS_ISOPEN)) { splhigh (); cx_set_dtr (d->chan, 0); cx_set_rts (d->chan, 0); if (d->dtrwait) { d->dtr_timeout_handle = timeout (cx_dtrwakeup, d, d->dtrwait); d->dtroff = 1; } spl0 (); } return error; } if (d->tty->t_state & TS_ISOPEN) d->callout = CALLOUT (dev) ? 1 : 0; d->open_dev |= 0x2; CX_DEBUG2 (d, ("cx_open done\n")); return 0; } #if __FreeBSD_version < 500000 static int cx_close (dev_t dev, int flag, int mode, struct proc *p) #else static int cx_close (struct cdev *dev, int flag, int mode, struct thread *td) #endif { drv_t *d = channel [UNIT (dev)]; int s; CX_DEBUG2 (d, ("cx_close\n")); if ((!(d->open_dev&0x2)) || IF_CUNIT(dev)){ d->open_dev &= ~0x1; return 0; } s = splhigh (); ttyld_close(d->tty, flag); ttyldoptim (d->tty); /* Disable receiver. * Transmitter continues sending the queued data. */ cx_enable_receive (d->chan, 0); /* Clear DTR and RTS. */ if ((d->tty->t_cflag & HUPCL) || ! (d->tty->t_state & TS_ISOPEN)) { cx_set_dtr (d->chan, 0); cx_set_rts (d->chan, 0); if (d->dtrwait) { d->dtr_timeout_handle = timeout (cx_dtrwakeup, d, d->dtrwait); d->dtroff = 1; } } ttyclose (d->tty); splx (s); d->callout = 0; /* * Wake up bidirectional opens. * Since we may be opened twice we couldn't call ttyrel() here. * So just keep d->tty for future use. It would be freed by * ttyrel() at cx_detach(). */ wakeup (d); d->open_dev &= ~0x2; return 0; } static int cx_read (struct cdev *dev, struct uio *uio, int flag) { drv_t *d = channel [UNIT (dev)]; if (d) CX_DEBUG2 (d, ("cx_read\n")); if (!d || d->chan->mode != M_ASYNC || IF_CUNIT(dev) || !d->tty) return EBADF; return ttyld_read (d->tty, uio, flag); } static int cx_write (struct cdev *dev, struct uio *uio, int flag) { drv_t *d = channel [UNIT (dev)]; if (d) CX_DEBUG2 (d, ("cx_write\n")); if (!d || d->chan->mode != M_ASYNC || IF_CUNIT(dev) || !d->tty) return EBADF; return ttyld_write (d->tty, uio, flag); } static int cx_modem_status (drv_t *d) { int status = 0, s = splhigh (); /* Already opened by someone or network interface is up? */ if ((d->chan->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) && (d->open_dev|0x2)) || (d->chan->mode != M_ASYNC && d->running)) status = TIOCM_LE; /* always enabled while open */ if (cx_get_dsr (d->chan)) status |= TIOCM_DSR; if (cx_get_cd (d->chan)) status |= TIOCM_CD; if (cx_get_cts (d->chan)) status |= TIOCM_CTS; if (d->chan->dtr) status |= TIOCM_DTR; if (d->chan->rts) status |= TIOCM_RTS; splx (s); return status; } #if __FreeBSD_version < 500000 static int cx_ioctl (dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p) #else static int cx_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td) #endif { drv_t *d = channel [UNIT (dev)]; cx_chan_t *c; struct serial_statistics *st; int error, s; char mask[16]; if (!d || !(c = d->chan)) return EINVAL; switch (cmd) { case SERIAL_GETREGISTERED: CX_DEBUG2 (d, ("ioctl: getregistered\n")); bzero (mask, sizeof(mask)); for (s=0; sp_ucred, &p->p_acflag); #elif __FreeBSD_version < 500000 error = suser (p); #else /* __FreeBSD_version >= 500000 */ error = suser (td); #endif /* __FreeBSD_version >= 500000 */ if (error) return error; s = splhigh (); cx_set_port (c, *(int *)data); splx (s); return 0; #ifndef NETGRAPH case SERIAL_GETPROTO: CX_DEBUG2 (d, ("ioctl: getproto\n")); s = splhigh (); strcpy ((char*)data, (c->mode == M_ASYNC) ? "async" : (d->pp.pp_flags & PP_FR) ? "fr" : (d->pp.pp_if.if_flags & PP_CISCO) ? "cisco" : "ppp"); splx (s); return 0; case SERIAL_SETPROTO: CX_DEBUG2 (d, ("ioctl: setproto\n")); /* Only for superuser! */ #if __FreeBSD_version < 400000 error = suser (p->p_ucred, &p->p_acflag); #elif __FreeBSD_version < 500000 error = suser (p); #else /* __FreeBSD_version >= 500000 */ error = suser (td); #endif /* __FreeBSD_version >= 500000 */ if (error) return error; if (c->mode == M_ASYNC) return EBUSY; if (d->pp.pp_if.if_flags & IFF_RUNNING) return EBUSY; if (! strcmp ("cisco", (char*)data)) { d->pp.pp_flags &= ~(PP_FR); d->pp.pp_flags |= PP_KEEPALIVE; d->pp.pp_if.if_flags |= PP_CISCO; } else if (! strcmp ("fr", (char*)data)) { d->pp.pp_if.if_flags &= ~(PP_CISCO); d->pp.pp_flags |= PP_FR | PP_KEEPALIVE; } else if (! strcmp ("ppp", (char*)data)) { d->pp.pp_flags &= ~(PP_FR | PP_KEEPALIVE); d->pp.pp_if.if_flags &= ~(PP_CISCO); } else return EINVAL; return 0; case SERIAL_GETKEEPALIVE: CX_DEBUG2 (d, ("ioctl: getkeepalive\n")); if ((d->pp.pp_flags & PP_FR) || (d->pp.pp_if.if_flags & PP_CISCO) || (c->mode == M_ASYNC)) return EINVAL; s = splhigh (); *(int*)data = (d->pp.pp_flags & PP_KEEPALIVE) ? 1 : 0; splx (s); return 0; case SERIAL_SETKEEPALIVE: CX_DEBUG2 (d, ("ioctl: setkeepalive\n")); /* Only for superuser! */ #if __FreeBSD_version < 400000 error = suser (p->p_ucred, &p->p_acflag); #elif __FreeBSD_version < 500000 error = suser (p); #else /* __FreeBSD_version >= 500000 */ error = suser (td); #endif /* __FreeBSD_version >= 500000 */ if (error) return error; if ((d->pp.pp_flags & PP_FR) || (d->pp.pp_if.if_flags & PP_CISCO)) return EINVAL; s = splhigh (); if (*(int*)data) d->pp.pp_flags |= PP_KEEPALIVE; else d->pp.pp_flags &= ~PP_KEEPALIVE; splx (s); return 0; #endif /*NETGRAPH*/ case SERIAL_GETMODE: CX_DEBUG2 (d, ("ioctl: getmode\n")); s = splhigh (); *(int*)data = (c->mode == M_ASYNC) ? SERIAL_ASYNC : SERIAL_HDLC; splx (s); return 0; case SERIAL_SETMODE: CX_DEBUG2 (d, ("ioctl: setmode\n")); /* Only for superuser! */ #if __FreeBSD_version < 400000 error = suser (p->p_ucred, &p->p_acflag); #elif __FreeBSD_version < 500000 error = suser (p); #else /* __FreeBSD_version >= 500000 */ error = suser (td); #endif /* __FreeBSD_version >= 500000 */ if (error) return error; /* Somebody is waiting for carrier? */ if (d->lock) return EBUSY; /* /dev/ttyXX is already opened by someone? */ if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) && (d->open_dev|0x2)) return EBUSY; /* Network interface is up? * Cannot change to async mode. */ if (c->mode != M_ASYNC && d->running && (*(int*)data == SERIAL_ASYNC)) return EBUSY; s = splhigh (); if (c->mode == M_HDLC && *(int*)data == SERIAL_ASYNC) { cx_set_mode (c, M_ASYNC); cx_enable_receive (c, 0); cx_enable_transmit (c, 0); } else if (c->mode == M_ASYNC && *(int*)data == SERIAL_HDLC) { cx_set_mode (c, M_HDLC); cx_enable_receive (c, 1); cx_enable_transmit (c, 1); } splx (s); return 0; case SERIAL_GETSTAT: CX_DEBUG2 (d, ("ioctl: getestat\n")); st = (struct serial_statistics*) data; s = splhigh (); st->rintr = c->rintr; st->tintr = c->tintr; st->mintr = c->mintr; st->ibytes = c->ibytes; st->ipkts = c->ipkts; st->ierrs = c->ierrs; st->obytes = c->obytes; st->opkts = c->opkts; st->oerrs = c->oerrs; splx (s); return 0; case SERIAL_CLRSTAT: CX_DEBUG2 (d, ("ioctl: clrstat\n")); /* Only for superuser! */ #if __FreeBSD_version < 400000 error = suser (p->p_ucred, &p->p_acflag); #elif __FreeBSD_version < 500000 error = suser (p); #else /* __FreeBSD_version >= 500000 */ error = suser (td); #endif /* __FreeBSD_version >= 500000 */ if (error) return error; s = splhigh (); c->rintr = 0; c->tintr = 0; c->mintr = 0; c->ibytes = 0; c->ipkts = 0; c->ierrs = 0; c->obytes = 0; c->opkts = 0; c->oerrs = 0; splx (s); return 0; case SERIAL_GETBAUD: CX_DEBUG2 (d, ("ioctl: getbaud\n")); if (c->mode == M_ASYNC) return EINVAL; s = splhigh (); *(long*)data = cx_get_baud(c); splx (s); return 0; case SERIAL_SETBAUD: CX_DEBUG2 (d, ("ioctl: setbaud\n")); /* Only for superuser! */ #if __FreeBSD_version < 400000 error = suser (p->p_ucred, &p->p_acflag); #elif __FreeBSD_version < 500000 error = suser (p); #else /* __FreeBSD_version >= 500000 */ error = suser (td); #endif /* __FreeBSD_version >= 500000 */ if (error) return error; if (c->mode == M_ASYNC) return EINVAL; s = splhigh (); cx_set_baud (c, *(long*)data); splx (s); return 0; case SERIAL_GETLOOP: CX_DEBUG2 (d, ("ioctl: getloop\n")); if (c->mode == M_ASYNC) return EINVAL; s = splhigh (); *(int*)data = cx_get_loop (c); splx (s); return 0; case SERIAL_SETLOOP: CX_DEBUG2 (d, ("ioctl: setloop\n")); /* Only for superuser! */ #if __FreeBSD_version < 400000 error = suser (p->p_ucred, &p->p_acflag); #elif __FreeBSD_version < 500000 error = suser (p); #else /* __FreeBSD_version >= 500000 */ error = suser (td); #endif /* __FreeBSD_version >= 500000 */ if (error) return error; if (c->mode == M_ASYNC) return EINVAL; s = splhigh (); cx_set_loop (c, *(int*)data); splx (s); return 0; case SERIAL_GETDPLL: CX_DEBUG2 (d, ("ioctl: getdpll\n")); if (c->mode == M_ASYNC) return EINVAL; s = splhigh (); *(int*)data = cx_get_dpll (c); splx (s); return 0; case SERIAL_SETDPLL: CX_DEBUG2 (d, ("ioctl: setdpll\n")); /* Only for superuser! */ #if __FreeBSD_version < 400000 error = suser (p->p_ucred, &p->p_acflag); #elif __FreeBSD_version < 500000 error = suser (p); #else /* __FreeBSD_version >= 500000 */ error = suser (td); #endif /* __FreeBSD_version >= 500000 */ if (error) return error; if (c->mode == M_ASYNC) return EINVAL; s = splhigh (); cx_set_dpll (c, *(int*)data); splx (s); return 0; case SERIAL_GETNRZI: CX_DEBUG2 (d, ("ioctl: getnrzi\n")); if (c->mode == M_ASYNC) return EINVAL; s = splhigh (); *(int*)data = cx_get_nrzi (c); splx (s); return 0; case SERIAL_SETNRZI: CX_DEBUG2 (d, ("ioctl: setnrzi\n")); /* Only for superuser! */ #if __FreeBSD_version < 400000 error = suser (p->p_ucred, &p->p_acflag); #elif __FreeBSD_version < 500000 error = suser (p); #else /* __FreeBSD_version >= 500000 */ error = suser (td); #endif /* __FreeBSD_version >= 500000 */ if (error) return error; if (c->mode == M_ASYNC) return EINVAL; s = splhigh (); cx_set_nrzi (c, *(int*)data); splx (s); return 0; case SERIAL_GETDEBUG: CX_DEBUG2 (d, ("ioctl: getdebug\n")); s = splhigh (); *(int*)data = c->debug; splx (s); return 0; case SERIAL_SETDEBUG: CX_DEBUG2 (d, ("ioctl: setdebug\n")); /* Only for superuser! */ #if __FreeBSD_version < 400000 error = suser (p->p_ucred, &p->p_acflag); #elif __FreeBSD_version < 500000 error = suser (p); #else /* __FreeBSD_version >= 500000 */ error = suser (td); #endif /* __FreeBSD_version >= 500000 */ if (error) return error; s = splhigh (); c->debug = *(int*)data; splx (s); #ifndef NETGRAPH if (d->chan->debug) d->pp.pp_if.if_flags |= IFF_DEBUG; else d->pp.pp_if.if_flags &= (~IFF_DEBUG); #endif return 0; } if (c->mode == M_ASYNC && !IF_CUNIT(dev) && d->tty) { #if __FreeBSD_version >= 502113 error = ttyioctl (dev, cmd, data, flag, td); ttyldoptim (d->tty); if (error != ENOTTY) { if (error) CX_DEBUG2 (d, ("ttioctl: 0x%lx, error %d\n", cmd, error)); return error; } #else #if __FreeBSD_version >= 500000 error = (*linesw[d->tty->t_line].l_ioctl) (d->tty, cmd, data, flag, td); #else error = (*linesw[d->tty->t_line].l_ioctl) (d->tty, cmd, data, flag, p); #endif ttyldoptim (d->tty); if (error != ENOIOCTL) { if (error) CX_DEBUG2 (d, ("l_ioctl: 0x%lx, error %d\n", cmd, error)); return error; } error = ttioctl (d->tty, cmd, data, flag); ttyldoptim (d->tty); if (error != ENOIOCTL) { if (error) CX_DEBUG2 (d, ("ttioctl: 0x%lx, error %d\n", cmd, error)); return error; } #endif } switch (cmd) { case TIOCSBRK: /* Start sending line break */ CX_DEBUG2 (d, ("ioctl: tiocsbrk\n")); s = splhigh (); cx_send_break (c, 500); splx (s); return 0; case TIOCCBRK: /* Stop sending line break */ CX_DEBUG2 (d, ("ioctl: tioccbrk\n")); return 0; case TIOCSDTR: /* Set DTR */ CX_DEBUG2 (d, ("ioctl: tiocsdtr\n")); s = splhigh (); cx_set_dtr (c, 1); splx (s); return 0; case TIOCCDTR: /* Clear DTR */ CX_DEBUG2 (d, ("ioctl: tioccdtr\n")); s = splhigh (); cx_set_dtr (c, 0); splx (s); return 0; case TIOCMSET: /* Set DTR/RTS */ CX_DEBUG2 (d, ("ioctl: tiocmset\n")); s = splhigh (); cx_set_dtr (c, (*(int*)data & TIOCM_DTR) ? 1 : 0); cx_set_rts (c, (*(int*)data & TIOCM_RTS) ? 1 : 0); splx (s); return 0; case TIOCMBIS: /* Add DTR/RTS */ CX_DEBUG2 (d, ("ioctl: tiocmbis\n")); s = splhigh (); if (*(int*)data & TIOCM_DTR) cx_set_dtr (c, 1); if (*(int*)data & TIOCM_RTS) cx_set_rts (c, 1); splx (s); return 0; case TIOCMBIC: /* Clear DTR/RTS */ CX_DEBUG2 (d, ("ioctl: tiocmbic\n")); s = splhigh (); if (*(int*)data & TIOCM_DTR) cx_set_dtr (c, 0); if (*(int*)data & TIOCM_RTS) cx_set_rts (c, 0); splx (s); return 0; case TIOCMGET: /* Get modem status */ CX_DEBUG2 (d, ("ioctl: tiocmget\n")); *(int*)data = cx_modem_status (d); return 0; #ifdef TIOCMSDTRWAIT case TIOCMSDTRWAIT: CX_DEBUG2 (d, ("ioctl: tiocmsdtrwait\n")); /* Only for superuser! */ #if __FreeBSD_version < 400000 error = suser (p->p_ucred, &p->p_acflag); #elif __FreeBSD_version < 500000 error = suser (p); #else /* __FreeBSD_version >= 500000 */ error = suser (td); #endif /* __FreeBSD_version >= 500000 */ if (error) return error; s = splhigh (); d->dtrwait = *(int*)data * hz / 100; splx (s); return 0; #endif #ifdef TIOCMGDTRWAIT case TIOCMGDTRWAIT: CX_DEBUG2 (d, ("ioctl: tiocmgdtrwait\n")); s = splhigh (); *(int*)data = d->dtrwait * 100 / hz; splx (s); return 0; #endif } CX_DEBUG2 (d, ("ioctl: 0x%lx\n", cmd)); return ENOTTY; } /* * Wake up opens() waiting for DTR ready. */ static void cx_dtrwakeup (void *arg) { drv_t *d = arg; d->dtroff = 0; wakeup (&d->dtrwait); } #if __FreeBSD_version < 502113 static void ttyldoptim(tp) struct tty *tp; { struct termios *t; t = &tp->t_termios; if (CONDITION(t,tp)) tp->t_state |= TS_CAN_BYPASS_L_RINT; else tp->t_state &= ~TS_CAN_BYPASS_L_RINT; } #endif #if __FreeBSD_version >= 500000 void cx_softintr (void *unused) #else void cx_softintr () #endif { drv_t *d; async_q *q; int i, s, ic, k; while (MY_SOFT_INTR) { MY_SOFT_INTR = 0; for (i=0; ichan || d->chan->type == T_NONE || d->chan->mode != M_ASYNC || !d->tty || !d->tty->t_dev) continue; s = splhigh (); if (d->intr_action & CX_READ) { q = &(d->aqueue); if (d->tty->t_state & TS_CAN_BYPASS_L_RINT) { k = AQ_GSZ(q); if (d->tty->t_rawq.c_cc + k > d->tty->t_ihiwat && (d->tty->t_cflag & CRTS_IFLOW || d->tty->t_iflag & IXOFF) && !(d->tty->t_state & TS_TBLOCK)) ttyblock(d->tty); d->tty->t_rawcc += k; while (k>0) { k--; AQ_POP (q, ic); splx (s); putc (ic, &d->tty->t_rawq); s = splhigh (); } ttwakeup(d->tty); if (d->tty->t_state & TS_TTSTOP && (d->tty->t_iflag & IXANY || d->tty->t_cc[VSTART] == d->tty->t_cc[VSTOP])) { d->tty->t_state &= ~TS_TTSTOP; d->tty->t_lflag &= ~FLUSHO; d->intr_action |= CX_WRITE; } } else { while (q->end != q->beg) { AQ_POP (q, ic); splx (s); ttyld_rint (d->tty, ic); s = splhigh (); } } d->intr_action &= ~CX_READ; } splx (s); s = splhigh (); if (d->intr_action & CX_WRITE) { if (d->tty->t_line) ttyld_start (d->tty); else cx_oproc (d->tty); d->intr_action &= ~CX_WRITE; } splx (s); } } } /* * Fill transmitter buffer with data. */ static void cx_oproc (struct tty *tp) { int s = splhigh (), k; drv_t *d = channel [UNIT (tp->t_dev)]; static u_char buf[DMABUFSZ]; u_char *p; u_short len = 0, sublen = 0; if (!d) { splx (s); return; } CX_DEBUG2 (d, ("cx_oproc\n")); if (tp->t_cflag & CRTSCTS && (tp->t_state & TS_TBLOCK) && d->chan->rts) cx_set_rts (d->chan, 0); else if (tp->t_cflag & CRTSCTS && ! (tp->t_state & TS_TBLOCK) && ! d->chan->rts) cx_set_rts (d->chan, 1); if (! (tp->t_state & (TS_TIMEOUT | TS_TTSTOP))) { /* Start transmitter. */ cx_enable_transmit (d->chan, 1); /* Is it busy? */ if (! cx_buf_free (d->chan)) { tp->t_state |= TS_BUSY; splx (s); return; } if (tp->t_iflag & IXOFF) { p = (buf + (DMABUFSZ/2)); sublen = q_to_b (&tp->t_outq, p, (DMABUFSZ/2)); k = sublen; while (k--) { /* Send XON/XOFF out of band. */ if (*p == tp->t_cc[VSTOP]) { cx_xflow_ctl (d->chan, 0); p++; continue; } if (*p == tp->t_cc[VSTART]) { cx_xflow_ctl (d->chan, 1); p++; continue; } buf[len] = *p; len++; p++; } } else { p = buf; len = q_to_b (&tp->t_outq, p, (DMABUFSZ/2)); } if (len) { cx_send_packet (d->chan, buf, len, 0); tp->t_state |= TS_BUSY; d->atimeout = 10; CX_DEBUG2 (d, ("out %d bytes\n", len)); } } ttwwakeup (tp); splx (s); } static int cx_param (struct tty *tp, struct termios *t) { drv_t *d = channel [UNIT (tp->t_dev)]; int s, bits, parity; if (!d) return EINVAL; s = splhigh (); if (t->c_ospeed == 0) { /* Clear DTR and RTS. */ cx_set_dtr (d->chan, 0); splx (s); CX_DEBUG2 (d, ("cx_param (hangup)\n")); return 0; } CX_DEBUG2 (d, ("cx_param\n")); /* Check requested parameters. */ if (t->c_ospeed < 300 || t->c_ospeed > 256*1024) { splx (s); return EINVAL; } if (t->c_ispeed && (t->c_ispeed < 300 || t->c_ispeed > 256*1024)) { splx (s); return EINVAL; } /* And copy them to tty and channel structures. */ tp->t_ispeed = t->c_ispeed = tp->t_ospeed = t->c_ospeed; tp->t_cflag = t->c_cflag; /* Set character length and parity mode. */ switch (t->c_cflag & CSIZE) { default: case CS8: bits = 8; break; case CS7: bits = 7; break; case CS6: bits = 6; break; case CS5: bits = 5; break; } parity = ((t->c_cflag & PARENB) ? 1 : 0) * (1 + ((t->c_cflag & PARODD) ? 0 : 1)); /* Set current channel number. */ if (! d->chan->dtr) cx_set_dtr (d->chan, 1); ttyldoptim (tp); cx_set_async_param (d->chan, t->c_ospeed, bits, parity, (t->c_cflag & CSTOPB), !(t->c_cflag & PARENB), (t->c_cflag & CRTSCTS), (t->c_iflag & IXON), (t->c_iflag & IXANY), t->c_cc[VSTART], t->c_cc[VSTOP]); splx (s); return 0; } #if __FreeBSD_version < 400000 static struct tty *cx_devtotty (dev_t dev) { int unit = UNIT (dev); if (unit == UNIT_CTL || unit >= NCX*NCHAN || ! channel[unit]) return 0; return channel[unit]->tty; } #endif /* * Stop output on a line */ static void cx_stop (struct tty *tp, int flag) { drv_t *d = channel [UNIT (tp->t_dev)]; int s; if (!d) return; s = splhigh (); if (tp->t_state & TS_BUSY) { /* Stop transmitter */ CX_DEBUG2 (d, ("cx_stop\n")); cx_transmitter_ctl (d->chan, 0); } splx (s); } /* * Process the (delayed) carrier signal setup. */ static void cx_carrier (void *arg) { drv_t *d = arg; cx_chan_t *c = d->chan; int s, cd; s = splhigh (); cd = cx_get_cd (c); if (d->cd != cd) { if (cd) { CX_DEBUG (d, ("carrier on\n")); d->cd = 1; splx (s); if (d->tty) ttyld_modem(d->tty, 1); } else { CX_DEBUG (d, ("carrier loss\n")); d->cd = 0; splx (s); if (d->tty) ttyld_modem(d->tty, 0); } } } /* * Modem signal callback function. */ static void cx_modem (cx_chan_t *c) { drv_t *d = c->sys; if (!d || c->mode != M_ASYNC) return; /* Handle carrier detect/loss. */ untimeout (cx_carrier, c, d->dcd_timeout_handle); /* Carrier changed - delay processing DCD for a while * to give both sides some time to initialize. */ d->dcd_timeout_handle = timeout (cx_carrier, d, hz/2); } #if __FreeBSD_version < 400000 struct isa_driver cxdriver = { cx_probe, cx_attach, "cx" }; static struct cdevsw cx_cdevsw = { cx_open, cx_close, cx_read, cx_write, cx_ioctl, cx_stop, noreset, cx_devtotty, ttpoll, nommap, NULL, "cx", NULL, -1, }; #elif __FreeBSD_version < 500000 static struct cdevsw cx_cdevsw = { cx_open, cx_close, cx_read, cx_write, cx_ioctl, ttypoll, nommap, nostrategy, "cx", CDEV_MAJOR, nodump, nopsize, D_TTY, -1 }; #elif __FreeBSD_version == 500000 static struct cdevsw cx_cdevsw = { cx_open, cx_close, cx_read, cx_write, cx_ioctl, ttypoll, nommap, nostrategy, "cx", CDEV_MAJOR, nodump, nopsize, D_TTY, }; #elif __FreeBSD_version <= 501000 static struct cdevsw cx_cdevsw = { .d_open = cx_open, .d_close = cx_close, .d_read = cx_read, .d_write = cx_write, .d_ioctl = cx_ioctl, .d_poll = ttypoll, .d_mmap = nommap, .d_strategy = nostrategy, .d_name = "cx", .d_maj = CDEV_MAJOR, .d_dump = nodump, .d_flags = D_TTY, }; #elif __FreeBSD_version < 502103 static struct cdevsw cx_cdevsw = { .d_open = cx_open, .d_close = cx_close, .d_read = cx_read, .d_write = cx_write, .d_ioctl = cx_ioctl, .d_poll = ttypoll, .d_name = "cx", .d_maj = CDEV_MAJOR, .d_flags = D_TTY, }; #else /* __FreeBSD_version >= 502103 */ static struct cdevsw cx_cdevsw = { .d_version = D_VERSION, .d_open = cx_open, .d_close = cx_close, .d_read = cx_read, .d_write = cx_write, .d_ioctl = cx_ioctl, .d_name = "cx", .d_maj = CDEV_MAJOR, .d_flags = D_TTY | D_NEEDGIANT, }; #endif #ifdef NETGRAPH #if __FreeBSD_version >= 500000 static int ng_cx_constructor (node_p node) { drv_t *d = NG_NODE_PRIVATE (node); #else static int ng_cx_constructor (node_p *node) { drv_t *d = (*node)->private; #endif CX_DEBUG (d, ("Constructor\n")); return EINVAL; } static int ng_cx_newhook (node_p node, hook_p hook, const char *name) { int s; #if __FreeBSD_version >= 500000 drv_t *d = NG_NODE_PRIVATE (node); #else drv_t *d = node->private; #endif if (d->chan->mode == M_ASYNC) return EINVAL; /* Attach debug hook */ if (strcmp (name, NG_CX_HOOK_DEBUG) == 0) { #if __FreeBSD_version >= 500000 NG_HOOK_SET_PRIVATE (hook, NULL); #else hook->private = 0; #endif d->debug_hook = hook; return 0; } /* Check for raw hook */ if (strcmp (name, NG_CX_HOOK_RAW) != 0) return EINVAL; #if __FreeBSD_version >= 500000 NG_HOOK_SET_PRIVATE (hook, d); #else hook->private = d; #endif d->hook = hook; s = splhigh (); cx_up (d); splx (s); return 0; } static int print_modems (char *s, cx_chan_t *c, int need_header) { int status = cx_modem_status (c->sys); int length = 0; if (need_header) length += sprintf (s + length, " LE DTR DSR RTS CTS CD\n"); length += sprintf (s + length, "%4s %4s %4s %4s %4s %4s\n", status & TIOCM_LE ? "On" : "-", status & TIOCM_DTR ? "On" : "-", status & TIOCM_DSR ? "On" : "-", status & TIOCM_RTS ? "On" : "-", status & TIOCM_CTS ? "On" : "-", status & TIOCM_CD ? "On" : "-"); return length; } static int print_stats (char *s, cx_chan_t *c, int need_header) { int length = 0; if (need_header) length += sprintf (s + length, " Rintr Tintr Mintr Ibytes Ipkts Ierrs Obytes Opkts Oerrs\n"); length += sprintf (s + length, "%7ld %7ld %7ld %8ld %7ld %7ld %8ld %7ld %7ld\n", c->rintr, c->tintr, c->mintr, c->ibytes, c->ipkts, c->ierrs, c->obytes, c->opkts, c->oerrs); return length; } static int print_chan (char *s, cx_chan_t *c) { drv_t *d = c->sys; int length = 0; length += sprintf (s + length, "cx%d", c->board->num * NCHAN + c->num); if (d->chan->debug) length += sprintf (s + length, " debug=%d", d->chan->debug); if (cx_get_baud (c)) length += sprintf (s + length, " %ld", cx_get_baud (c)); else length += sprintf (s + length, " extclock"); if (c->mode == M_HDLC) { length += sprintf (s + length, " dpll=%s", cx_get_dpll (c) ? "on" : "off"); length += sprintf (s + length, " nrzi=%s", cx_get_nrzi (c) ? "on" : "off"); } length += sprintf (s + length, " loop=%s", cx_get_loop (c) ? "on\n" : "off\n"); return length; } #if __FreeBSD_version >= 500000 static int ng_cx_rcvmsg (node_p node, item_p item, hook_p lasthook) { drv_t *d = NG_NODE_PRIVATE (node); struct ng_mesg *msg; #else static int ng_cx_rcvmsg (node_p node, struct ng_mesg *msg, const char *retaddr, struct ng_mesg **rptr) { drv_t *d = node->private; #endif struct ng_mesg *resp = NULL; int error = 0; if (!d) return EINVAL; CX_DEBUG (d, ("Rcvmsg\n")); #if __FreeBSD_version >= 500000 NGI_GET_MSG (item, msg); #endif switch (msg->header.typecookie) { default: error = EINVAL; break; case NGM_CX_COOKIE: printf ("Don't forget to implement\n"); error = EINVAL; break; case NGM_GENERIC_COOKIE: switch (msg->header.cmd) { default: error = EINVAL; break; case NGM_TEXT_STATUS: { char *s; int l = 0; int dl = sizeof (struct ng_mesg) + 730; #if __FreeBSD_version >= 500000 NG_MKRESPONSE (resp, msg, dl, M_NOWAIT); if (! resp) { error = ENOMEM; break; } #else MALLOC (resp, struct ng_mesg *, dl, M_NETGRAPH, M_NOWAIT); if (! resp) { error = ENOMEM; break; } #endif bzero (resp, dl); s = (resp)->data; l += print_chan (s + l, d->chan); l += print_stats (s + l, d->chan, 1); l += print_modems (s + l, d->chan, 1); #if __FreeBSD_version < 500000 (resp)->header.version = NG_VERSION; (resp)->header.arglen = strlen (s) + 1; (resp)->header.token = msg->header.token; (resp)->header.typecookie = NGM_CX_COOKIE; (resp)->header.cmd = msg->header.cmd; #endif strncpy ((resp)->header.cmdstr, "status", NG_CMDSTRLEN); } break; } break; } #if __FreeBSD_version >= 500000 NG_RESPOND_MSG (error, node, item, resp); NG_FREE_MSG (msg); #else *rptr = resp; FREE (msg, M_NETGRAPH); #endif return error; } #if __FreeBSD_version >= 500000 static int ng_cx_rcvdata (hook_p hook, item_p item) { drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE(hook)); struct mbuf *m; meta_p meta; #else static int ng_cx_rcvdata (hook_p hook, struct mbuf *m, meta_p meta) { drv_t *d = hook->node->private; #endif struct ifqueue *q; int s; #if __FreeBSD_version >= 500000 NGI_GET_M (item, m); NGI_GET_META (item, meta); NG_FREE_ITEM (item); if (! NG_HOOK_PRIVATE (hook) || ! d) { NG_FREE_M (m); NG_FREE_META (meta); #else if (! hook->private || ! d) { NG_FREE_DATA (m,meta); #endif return ENETDOWN; } q = (meta && meta->priority > 0) ? &d->hi_queue : &d->lo_queue; s = splhigh (); #if __FreeBSD_version >= 500000 IF_LOCK (q); if (_IF_QFULL (q)) { _IF_DROP (q); IF_UNLOCK (q); splx (s); NG_FREE_M (m); NG_FREE_META (meta); return ENOBUFS; } _IF_ENQUEUE (q, m); IF_UNLOCK (q); #else if (IF_QFULL (q)) { IF_DROP (q); splx (s); NG_FREE_DATA (m, meta); return ENOBUFS; } IF_ENQUEUE (q, m); #endif cx_start (d); splx (s); return 0; } static int ng_cx_rmnode (node_p node) { #if __FreeBSD_version >= 500000 drv_t *d = NG_NODE_PRIVATE (node); CX_DEBUG (d, ("Rmnode\n")); if (d && d->running) { int s = splhigh (); cx_down (d); splx (s); } #ifdef KLD_MODULE if (node->nd_flags & NG_REALLY_DIE) { NG_NODE_SET_PRIVATE (node, NULL); NG_NODE_UNREF (node); } node->nd_flags &= ~NG_INVALID; #endif #else /* __FreeBSD_version < 500000 */ drv_t *d = node->private; int s; s = splhigh (); cx_down (d); splx (s); node->flags |= NG_INVALID; ng_cutlinks (node); #ifdef KLD_MODULE ng_unname (node); ng_unref (node); #else node->flags &= ~NG_INVALID; #endif #endif return 0; } static void ng_cx_watchdog (void *arg) { drv_t *d = arg; if (d->timeout == 1) cx_watchdog (d); if (d->timeout) d->timeout--; d->timeout_handle = timeout (ng_cx_watchdog, d, hz); } static int ng_cx_connect (hook_p hook) { #if __FreeBSD_version >= 500000 drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook)); #else drv_t *d = hook->node->private; #endif d->timeout_handle = timeout (ng_cx_watchdog, d, hz); return 0; } static int ng_cx_disconnect (hook_p hook) { #if __FreeBSD_version >= 500000 drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook)); #else drv_t *d = hook->node->private; #endif int s; s = splhigh (); #if __FreeBSD_version >= 500000 if (NG_HOOK_PRIVATE (hook)) #else if (hook->private) #endif cx_down (d); splx (s); untimeout (ng_cx_watchdog, d, d->timeout_handle); return 0; } #endif /*NETGRAPH*/ #ifdef KLD_MODULE #if __FreeBSD_version < 400000 /* * Function called when loading the driver. */ static int cx_load (void) { int i; for (i=0;iirq, 0, 0, (inthand2_t*) cx_intr, &net_imask, id.id_unit); enable_intr(); } if (!i) { /* Deactivate the timeout routine. And soft interrupt*/ untimeout (cx_timeout, 0, timeout_handle); unregister_swi (SWI_TTY, cx_softintr); return ENXIO; } return 0; } /* * Function called when unloading the driver. */ static int cx_unload (void) { int i, s; /* Check if the device is busy (open). */ for (i=0; ichan)->type == T_NONE) continue; if (d->lock) return EBUSY; if (c->mode == M_ASYNC && d->tty && (d->tty->t_state & TS_ISOPEN) && (d->open_dev|0x2)) return EBUSY; if (d->running) return EBUSY; } s = splhigh (); /* Deactivate the timeout routine. And soft interrupt*/ for (i=0; iport) continue; untimeout (cx_timeout, 0, timeout_handle); unregister_swi (SWI_TTY, cx_softintr); break; } for (i=0; ichan)->type == T_NONE) continue; if (d->dtr_timeout_handle.callout) untimeout (cx_dtrwakeup, d, d->dtr_timeout_handle); if (d->dcd_timeout_handle.callout) untimeout (cx_carrier, c, d->dcd_timeout_handle); } /* Close all active boards. */ for (i=0; iport) continue; cx_close_board (b); } for (i=0; iport) continue; if (led_timo[i].callout) untimeout (cx_led_off, b, led_timo[i]); } /* OK to unload the driver, unregister the interrupt first. */ for (i=0; iport) continue; /* Disable the interrupt request. */ disable_intr(); unregister_intr (b->irq, (inthand2_t *)cx_intr); isa_dma_release (b->dma); enable_intr(); } splx (s); s = splhigh (); /* Detach the interfaces, free buffer memory. */ for (i=0; ichan)->type == T_NONE) continue; #ifndef NETGRAPH #if NBPFILTER > 0 /* Detach from the packet filter list of interfaces. */ { struct bpf_if *q, **b = &bpf_iflist; while ((q = *b)) { if (q->bif_ifp == d->pp.pp_if) { *b = q->bif_next; free (q, M_DEVBUF); } b = &(q->bif_next); } } #endif /* NBPFILTER */ /* Detach from the sync PPP list. */ sppp_detach (&d->pp.pp_if); /* Detach from the system list of interfaces. */ { struct ifaddr *ifa; TAILQ_FOREACH (ifa, &d->pp.pp_if.if_addrhead, ifa_link) { TAILQ_REMOVE (&d->pp.pp_if.if_addrhead, ifa, ifa_link); free (ifa, M_IFADDR); } TAILQ_REMOVE (&ifnet, &d->pp.pp_if, if_link); } #endif /* !NETGRAPH */ /* Deallocate buffers. */ /* free (d, M_DEVBUF);*/ } for (i=0; inum] = 0; free (b, M_DEVBUF); } splx (s); return 0; } #define devsw(a) cdevsw[major((a))] #endif /* __FreeBSD_version < 400000 */ #endif /* KLD_MODULE */ #if __FreeBSD_version < 400000 #ifdef KLD_MODULE static int cx_modevent (module_t mod, int type, void *unused) { dev_t dev; int result; static int load_count = 0; dev = makedev (CDEV_MAJOR, 0); switch (type) { case MOD_LOAD: if (devsw(dev)) return (ENXIO); load_count ++; cdevsw_add (&dev, &cx_cdevsw, NULL); timeout_handle = timeout (cx_timeout, 0, hz*5); /* Software interrupt. */ register_swi (SWI_TTY, cx_softintr); result = cx_load (); return result; case MOD_UNLOAD: result = cx_unload (); if (result) return result; if (devsw(dev)&&!(load_count-1)) { cdevsw_add (&dev, NULL, NULL); } load_count --; return result; case MOD_SHUTDOWN: break; } return 0; } #endif /* KLD_MODULE */ #else /* __FreeBSD_version >= 400000 */ static int cx_modevent (module_t mod, int type, void *unused) { struct cdev *dev; static int load_count = 0; struct cdevsw *cdsw; #if __FreeBSD_version >= 502103 dev = findcdev (makedev(CDEV_MAJOR, 0)); #else dev = makedev (CDEV_MAJOR, 0); #endif switch (type) { case MOD_LOAD: if (dev != NULL && (cdsw = devsw (dev)) && cdsw->d_maj == CDEV_MAJOR) { printf ("Sigma driver is already in system\n"); return (EEXIST); } #if __FreeBSD_version >= 500000 && defined NETGRAPH if (ng_newtype (&typestruct)) printf ("Failed to register ng_cx\n"); #endif ++load_count; #if __FreeBSD_version <= 500000 cdevsw_add (&cx_cdevsw); #endif timeout_handle = timeout (cx_timeout, 0, hz*5); /* Software interrupt. */ #if __FreeBSD_version < 500000 register_swi (SWI_TTY, cx_softintr); #else swi_add(&tty_ithd, "tty:cx", cx_softintr, NULL, SWI_TTY, 0, &cx_fast_ih); #endif break; case MOD_UNLOAD: if (load_count == 1) { printf ("Removing device entry for Sigma\n"); #if __FreeBSD_version <= 500000 cdevsw_remove (&cx_cdevsw); #endif #if __FreeBSD_version >= 500000 && defined NETGRAPH ng_rmtype (&typestruct); #endif } if (timeout_handle.callout) untimeout (cx_timeout, 0, timeout_handle); #if __FreeBSD_version >= 500000 ithread_remove_handler (cx_fast_ih); #else unregister_swi (SWI_TTY, cx_softintr); #endif --load_count; break; case MOD_SHUTDOWN: break; } return 0; } #endif /* __FreeBSD_version >= 400000 */ #ifdef NETGRAPH static struct ng_type typestruct = { .version = NG_ABI_VERSION, .name = NG_CX_NODE_TYPE, .constructor = ng_cx_constructor, .rcvmsg = ng_cx_rcvmsg, .shutdown = ng_cx_rmnode, .newhook = ng_cx_newhook, .connect = ng_cx_connect, .rcvdata = ng_cx_rcvdata, .disconnect = ng_cx_disconnect }; #if __FreeBSD_version < 400000 NETGRAPH_INIT_ORDERED (cx, &typestruct, SI_SUB_DRIVERS,\ SI_ORDER_MIDDLE + CDEV_MAJOR); #endif #endif /*NETGRAPH*/ #if __FreeBSD_version >= 500000 #ifdef NETGRAPH MODULE_DEPEND (ng_cx, netgraph, NG_ABI_VERSION, NG_ABI_VERSION, NG_ABI_VERSION); #else MODULE_DEPEND (isa_cx, sppp, 1, 1, 1); #endif #ifdef KLD_MODULE DRIVER_MODULE (cxmod, isa, cx_isa_driver, cx_devclass, cx_modevent, NULL); #else DRIVER_MODULE (cx, isa, cx_isa_driver, cx_devclass, cx_modevent, NULL); #endif #elif __FreeBSD_version >= 400000 #ifdef NETGRAPH DRIVER_MODULE(cx, isa, cx_isa_driver, cx_devclass, ng_mod_event, &typestruct); #else DRIVER_MODULE(cx, isa, cx_isa_driver, cx_devclass, cx_modevent, 0); #endif #else /* __FreeBSD_version < 400000 */ #ifdef KLD_MODULE #ifndef NETGRAPH static moduledata_t cxmod = { "cx", cx_modevent, NULL}; DECLARE_MODULE (cx, cxmod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE + CDEV_MAJOR); #endif #else /* KLD_MODULE */ /* * Now for some driver initialisation. * Occurs ONCE during boot (very early). * This is if we are NOT a loadable module. */ static void cx_drvinit (void *unused) { #if __FreeBSD_version < 400000 dev_t dev; dev = makedev (CDEV_MAJOR, 0); cdevsw_add (&dev, &cx_cdevsw, NULL); #else cdevsw_add (&cx_cdevsw); #endif /* Activate the timeout routine. */ timeout_handle = timeout (cx_timeout, 0, hz*5); /* Software interrupt. */ register_swi (SWI_TTY, cx_softintr); #ifdef NETGRAPH #if 0 /* Register our node type in netgraph */ if (ng_newtype (&typestruct)) printf ("Failed to register ng_cx\n"); #endif #endif } SYSINIT (cxdev, SI_SUB_DRIVERS, SI_ORDER_MIDDLE+CDEV_MAJOR, cx_drvinit, 0) #endif /* KLD_MODULE */ #endif /* __FreeBSD_version < 400000 */ #endif /* NCX */