mirror/freebsd
1
0
Fork 0
mirror of https://git.FreeBSD.org/src.git synced 2024-12-29 12:03:03 +00:00
Code Issues Releases Activity
976b010645
freebsd/sys/dev/ctau/if_ct.c
Kevin Lo 976b010645 Spelling fix for interupt -> interrupt
2007-10-12 06:03:46 +00:00

2261 lines
53 KiB
C
Raw Blame History

/*-
* Cronyx-Tau 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, <vak@cronyx.ru>
*
* Copyright (C) 1999-2004 Cronyx Engineering.
* Author: Roman Kurakin, <rik@cronyx.ru>
*
* 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_ct.c,v 1.1.2.31 2004/06/23 17:09:13 rik Exp $
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/mbuf.h>
#include <sys/sockio.h>
#include <sys/malloc.h>
#include <sys/priv.h>
#include <sys/socket.h>
#include <sys/sysctl.h>
#include <sys/conf.h>
#include <sys/errno.h>
#include <sys/tty.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <isa/isavar.h>
#include <sys/interrupt.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <net/if.h>
#include <machine/cpufunc.h>
#include <machine/cserial.h>
#include <machine/resource.h>
#include <dev/cx/machdep.h>
#include <dev/ctau/ctddk.h>
#include <dev/cx/cronyxfw.h>
#include "opt_ng_cronyx.h"
#ifdef NETGRAPH_CRONYX
# include "opt_netgraph.h"
# include <netgraph/ng_message.h>
# include <netgraph/netgraph.h>
# include <dev/ctau/ng_ct.h>
#else
# include <net/if_types.h>
# include <net/if_sppp.h>
# define PP_CISCO IFF_LINK2
# include <net/bpf.h>
#endif
#define NCTAU 1
/* 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 CT_DEBUG(d,s) ({if (d->chan->debug) {\
printf ("%s: ", d->name); printf s;}})
#define CT_DEBUG2(d,s) ({if (d->chan->debug>1) {\
printf ("%s: ", d->name); printf s;}})
#define CT_LOCK_NAME "ctX"
static int ct_mpsafenet = 1;
TUNABLE_INT("debug.ctau.mpsafenet", &ct_mpsafenet);
SYSCTL_NODE(_debug, OID_AUTO, ctau, CTLFLAG_RD, 0, "Cronyx Tau-ISA Adapters");
SYSCTL_INT(_debug_ctau, OID_AUTO, mpsafenet, CTLFLAG_RD, &ct_mpsafenet, 0,
"Enable/disable MPSAFE network support for Cronyx Tau-ISA Adapters");
#define CT_LOCK(_bd) do { \
if (ct_mpsafenet) \
mtx_lock (&(_bd)->ct_mtx); \
} while (0)
#define CT_UNLOCK(_bd) do { \
if (ct_mpsafenet) \
mtx_unlock (&(_bd)->ct_mtx); \
} while (0)
#define CT_LOCK_ASSERT(_bd) do { \
if (ct_mpsafenet) \
mtx_assert (&(_bd)->ct_mtx, MA_OWNED); \
} while (0)
static void ct_identify __P((driver_t *, device_t));
static int ct_probe __P((device_t));
static int ct_attach __P((device_t));
static int ct_detach __P((device_t));
static device_method_t ct_isa_methods [] = {
DEVMETHOD(device_identify, ct_identify),
DEVMETHOD(device_probe, ct_probe),
DEVMETHOD(device_attach, ct_attach),
DEVMETHOD(device_detach, ct_detach),
{0, 0}
};
typedef struct _ct_dma_mem_t {
unsigned long phys;
void *virt;
size_t size;
bus_dma_tag_t dmat;
bus_dmamap_t mapp;
} ct_dma_mem_t;
typedef struct _drv_t {
char name [8];
ct_chan_t *chan;
ct_board_t *board;
struct _bdrv_t *bd;
ct_dma_mem_t dmamem;
int running;
#ifdef NETGRAPH
char nodename [NG_NODELEN+1];
hook_p hook;
hook_p debug_hook;
node_p node;
struct ifqueue queue;
struct ifqueue hi_queue;
short timeout;
struct callout timeout_handle;
#else
struct ifqueue queue;
struct ifnet *ifp;
#endif
struct cdev *devt;
} drv_t;
typedef struct _bdrv_t {
ct_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;
drv_t channel [NCHAN];
struct mtx ct_mtx;
} bdrv_t;
static driver_t ct_isa_driver = {
"ct",
ct_isa_methods,
sizeof (bdrv_t),
};
static devclass_t ct_devclass;
static void ct_receive (ct_chan_t *c, char *data, int len);
static void ct_transmit (ct_chan_t *c, void *attachment, int len);
static void ct_error (ct_chan_t *c, int data);
static void ct_up (drv_t *d);
static void ct_start (drv_t *d);
static void ct_down (drv_t *d);
static void ct_watchdog (drv_t *d);
#ifdef NETGRAPH
extern struct ng_type typestruct;
#else
static void ct_ifstart (struct ifnet *ifp);
static void ct_tlf (struct sppp *sp);
static void ct_tls (struct sppp *sp);
static void ct_ifwatchdog (struct ifnet *ifp);
static int ct_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data);
static void ct_initialize (void *softc);
#endif
static ct_board_t *adapter [NCTAU];
static drv_t *channel [NCTAU*NCHAN];
static struct callout led_timo [NCTAU];
static struct callout timeout_handle;
static int ct_open (struct cdev *dev, int oflags, int devtype, struct thread *td);
static int ct_close (struct cdev *dev, int fflag, int devtype, struct thread *td);
static int ct_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td);
static struct cdevsw ct_cdevsw = {
.d_version = D_VERSION,
.d_open = ct_open,
.d_close = ct_close,
.d_ioctl = ct_ioctl,
.d_name = "ct",
.d_flags = D_NEEDGIANT,
};
/*
* 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;
MGETHDR (m, M_DONTWAIT, MT_DATA);
if (! m)
return 0;
MCLGET (m, M_DONTWAIT);
if (! (m->m_flags & M_EXT)) {
m_freem (m);
return 0;
}
m->m_pkthdr.len = m->m_len = len;
bcopy (buf, mtod (m, caddr_t), len);
return m;
}
static void ct_timeout (void *arg)
{
drv_t *d;
int s, i, k;
for (i = 0; i < NCTAU; ++i) {
if (adapter[i] == NULL)
continue;
for (k = 0; k < NCHAN; k++) {
d = channel[i * NCHAN + k];
if (! d)
continue;
if (d->chan->mode != M_G703)
continue;
s = splimp ();
CT_LOCK ((bdrv_t *)d->bd);
ct_g703_timer (d->chan);
CT_UNLOCK ((bdrv_t *)d->bd);
splx (s);
}
}
callout_reset (&timeout_handle, hz, ct_timeout, 0);
}
static void ct_led_off (void *arg)
{
ct_board_t *b = arg;
bdrv_t *bd = ((drv_t *)b->chan->sys)->bd;
int s = splimp ();
CT_LOCK (bd);
ct_led (b, 0);
CT_UNLOCK (bd);
splx (s);
}
/*
* Activate interrupt handler from DDK.
*/
static void ct_intr (void *arg)
{
bdrv_t *bd = arg;
ct_board_t *b = bd->board;
#ifndef NETGRAPH
int i;
#endif
int s = splimp ();
CT_LOCK (bd);
/* Turn LED on. */
ct_led (b, 1);
ct_int_handler (b);
/* Turn LED off 50 msec later. */
callout_reset (&led_timo[b->num], hz/20, ct_led_off, b);
CT_UNLOCK (bd);
splx (s);
#ifndef NETGRAPH
/* Pass packets in a lock-free state */
for (i = 0; i < NCHAN && b->chan[i].type; i++) {
drv_t *d = b->chan[i].sys;
struct mbuf *m;
if (!d || !d->running)
continue;
while (_IF_QLEN(&d->queue)) {
IF_DEQUEUE (&d->queue,m);
if (!m)
continue;
sppp_input (d->ifp, m);
}
}
#endif
}
static int probe_irq (ct_board_t *b, int irq)
{
int mask, busy, cnt;
/* Clear pending irq, if any. */
ct_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 = ct_probe_irq (b, irq);
DELAY (1000);
/* Get the mask of active irqs.
* Deactivate our irq. */
mask = ct_probe_irq (b, -irq);
DELAY (100);
if ((mask & ~busy) == 1 << irq) {
ct_probe_irq (b, 0);
/* printf ("ct%d: irq %d ok, mask=0x%04x, busy=0x%04x\n",
b->num, irq, mask, busy); */
return 1;
}
}
/* printf ("ct%d: irq %d not functional, mask=0x%04x, busy=0x%04x\n",
b->num, irq, mask, busy); */
ct_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 };
static int ct_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 ct_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 ("ct")) == 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 (!ct_is_free_res (dev, 0, SYS_RES_IOPORT,
iobase, iobase + NPORT, NPORT))
continue;
if (ct_probe_board (iobase, -1, -1) == 0)
continue;
devcount++;
child = BUS_ADD_CHILD (dev, ISA_ORDER_SPECULATIVE, "ct",
-1);
if (child == NULL)
return;
device_set_desc_copy (child, "Cronyx Tau-ISA");
device_set_driver (child, driver);
bus_set_resource (child, SYS_RES_IOPORT, 0,
iobase, NPORT);
if (devcount >= NCTAU)
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 (!ct_is_free_res (devices[k], 0, SYS_RES_IOPORT,
iobase, iobase + NPORT, NPORT))
continue;
if (ct_probe_board (iobase, -1, -1) == 0)
continue;
porttab [i] = -1;
device_set_desc_copy (devices[k], "Cronyx Tau-ISA");
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 (!ct_is_free_res (devices[k], 0, SYS_RES_IOPORT,
iobase, iobase + NPORT, NPORT))
continue;
if (ct_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 Tau-ISA");
break;
}
if (porttab [i] == 0) {
device_delete_child (
device_get_parent (devices[k]),
devices [k]);
}
}
free (devices, M_TEMP);
}
return;
}
static int ct_probe (device_t dev)
{
int unit = device_get_unit (dev);
u_long iobase, rescount;
if (!device_get_desc (dev) ||
strcmp (device_get_desc (dev), "Cronyx Tau-ISA"))
return ENXIO;
/* KASSERT ((bd != NULL), ("ct%d: NULL device softc\n", unit));*/
if (bus_get_resource (dev, SYS_RES_IOPORT, 0, &iobase, &rescount) != 0) {
printf ("ct%d: Couldn't get IOPORT\n", unit);
return ENXIO;
}
if (!ct_is_free_res (dev, 0, SYS_RES_IOPORT,
iobase, iobase + NPORT, NPORT)) {
printf ("ct%d: Resource IOPORT isn't free\n", unit);
return ENXIO;
}
if (!ct_probe_board (iobase, -1, -1)) {
printf ("ct%d: probing for Tau-ISA at %lx faild\n", unit, iobase);
return ENXIO;
}
return 0;
}
static void
ct_bus_dmamap_addr (void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
unsigned long *addr;
if (error)
return;
KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
addr = arg;
*addr = segs->ds_addr;
}
static int
ct_bus_dma_mem_alloc (int bnum, int cnum, ct_dma_mem_t *dmem)
{
int error;
error = bus_dma_tag_create (NULL, 16, 0, BUS_SPACE_MAXADDR_24BIT,
BUS_SPACE_MAXADDR, NULL, NULL, dmem->size, 1,
dmem->size, 0, NULL, NULL, &dmem->dmat);
if (error) {
if (cnum >= 0) printf ("ct%d-%d: ", bnum, cnum);
else printf ("ct%d: ", bnum);
printf ("couldn't allocate tag for dma memory\n");
return 0;
}
error = bus_dmamem_alloc (dmem->dmat, (void **)&dmem->virt,
BUS_DMA_NOWAIT | BUS_DMA_ZERO, &dmem->mapp);
if (error) {
if (cnum >= 0) printf ("ct%d-%d: ", bnum, cnum);
else printf ("ct%d: ", bnum);
printf ("couldn't allocate mem for dma memory\n");
bus_dma_tag_destroy (dmem->dmat);
return 0;
}
error = bus_dmamap_load (dmem->dmat, dmem->mapp, dmem->virt,
dmem->size, ct_bus_dmamap_addr, &dmem->phys, 0);
if (error) {
if (cnum >= 0) printf ("ct%d-%d: ", bnum, cnum);
else printf ("ct%d: ", bnum);
printf ("couldn't load mem map for dma memory\n");
bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp);
bus_dma_tag_destroy (dmem->dmat);
return 0;
}
return 1;
}
static void
ct_bus_dma_mem_free (ct_dma_mem_t *dmem)
{
bus_dmamap_unload (dmem->dmat, dmem->mapp);
bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp);
bus_dma_tag_destroy (dmem->dmat);
}
/*
* The adapter is present, initialize the driver structures.
*/
static int ct_attach (device_t dev)
{
bdrv_t *bd = device_get_softc (dev);
u_long iobase, drq, irq, rescount;
int unit = device_get_unit (dev);
char *ct_ln = CT_LOCK_NAME;
ct_board_t *b;
ct_chan_t *c;
drv_t *d;
int i;
int s;
KASSERT ((bd != NULL), ("ct%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 ("ct%d: cannot alloc 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 (!ct_is_free_res (dev, 0, 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 ("ct%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 ("ct%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 (!ct_is_free_res (dev, 0, 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 ("ct%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 ("ct%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 (ct_board_t), M_DEVBUF, M_WAITOK);
if (!b) {
printf ("ct:%d: Couldn't allocate memory\n", unit);
return (ENXIO);
}
adapter[unit] = b;
bzero (b, sizeof(ct_board_t));
if (! ct_open_board (b, unit, iobase, irq, drq)) {
printf ("ct%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;
ct_ln[2] = '0' + unit;
mtx_init (&bd->ct_mtx, ct_ln, MTX_NETWORK_LOCK, MTX_DEF|MTX_RECURSE);
if (! probe_irq (b, irq)) {
printf ("ct%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);
mtx_destroy (&bd->ct_mtx);
return ENXIO;
}
callout_init (&led_timo[unit], ct_mpsafenet ? CALLOUT_MPSAFE : 0);
s = splimp ();
if (bus_setup_intr (dev, bd->irq_res,
INTR_TYPE_NET|(ct_mpsafenet?INTR_MPSAFE:0),
NULL, ct_intr, bd, &bd->intrhand)) {
printf ("ct%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);
mtx_destroy (&bd->ct_mtx);
splx (s);
return ENXIO;
}
CT_LOCK (bd);
ct_init_board (b, b->num, b->port, irq, drq, b->type, b->osc);
ct_setup_board (b, 0, 0, 0);
CT_UNLOCK (bd);
printf ("ct%d: <Cronyx-%s>, clock %s MHz\n", b->num, b->name,
b->osc == 20000000 ? "20" : "16.384");
for (c = b->chan; c < b->chan + NCHAN; ++c) {
d = &bd->channel[c->num];
d->dmamem.size = sizeof(ct_buf_t);
if (! ct_bus_dma_mem_alloc (unit, c->num, &d->dmamem))
continue;
d->board = b;
d->chan = c;
d->bd = bd;
c->sys = d;
channel [b->num*NCHAN + c->num] = d;
sprintf (d->name, "ct%d.%d", b->num, c->num);
#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;
ct_bus_dma_mem_free (&d->dmamem);
continue;
}
NG_NODE_SET_PRIVATE (d->node, d);
sprintf (d->nodename, "%s%d", NG_CT_NODE_TYPE,
c->board->num*NCHAN + c->num);
if (ng_name_node (d->node, d->nodename)) {
printf ("%s: cannot name node\n", d->nodename);
NG_NODE_UNREF (d->node);
channel [b->num*NCHAN + c->num] = 0;
c->sys = 0;
ct_bus_dma_mem_free (&d->dmamem);
continue;
}
d->queue.ifq_maxlen = IFQ_MAXLEN;
d->hi_queue.ifq_maxlen = IFQ_MAXLEN;
mtx_init (&d->queue.ifq_mtx, "ct_queue", NULL, MTX_DEF);
mtx_init (&d->hi_queue.ifq_mtx, "ct_queue_hi", NULL, MTX_DEF);
callout_init (&d->timeout_handle,
ct_mpsafenet ? CALLOUT_MPSAFE : 0);
#else /*NETGRAPH*/
d->ifp = if_alloc(IFT_PPP);
if (d->ifp == NULL) {
printf ("%s: cannot if_alloc common interface\n",
d->name);
channel [b->num*NCHAN + c->num] = 0;
c->sys = 0;
ct_bus_dma_mem_free (&d->dmamem);
continue;
}
d->ifp->if_softc = d;
if_initname (d->ifp, "ct", b->num * NCHAN + c->num);
d->ifp->if_mtu = PP_MTU;
d->ifp->if_flags = IFF_POINTOPOINT | IFF_MULTICAST;
if (!ct_mpsafenet)
d->ifp->if_flags |= IFF_NEEDSGIANT;
d->ifp->if_ioctl = ct_sioctl;
d->ifp->if_start = ct_ifstart;
d->ifp->if_watchdog = ct_ifwatchdog;
d->ifp->if_init = ct_initialize;
d->queue.ifq_maxlen = NBUF;
mtx_init (&d->queue.ifq_mtx, "ct_queue", NULL, MTX_DEF);
sppp_attach (d->ifp);
if_attach (d->ifp);
IFP2SP(d->ifp)->pp_tlf = ct_tlf;
IFP2SP(d->ifp)->pp_tls = ct_tls;
/* If BPF is in the kernel, call the attach for it.
* Header size is 4 bytes. */
bpfattach (d->ifp, DLT_PPP, 4);
#endif /*NETGRAPH*/
CT_LOCK (bd);
ct_start_chan (c, d->dmamem.virt, d->dmamem.phys);
ct_register_receive (c, &ct_receive);
ct_register_transmit (c, &ct_transmit);
ct_register_error (c, &ct_error);
CT_UNLOCK (bd);
d->devt = make_dev (&ct_cdevsw, b->num*NCHAN+c->num, UID_ROOT,
GID_WHEEL, 0600, "ct%d", b->num*NCHAN+c->num);
}
splx (s);
return 0;
}
static int ct_detach (device_t dev)
{
bdrv_t *bd = device_get_softc (dev);
ct_board_t *b = bd->board;
ct_chan_t *c;
int s;
KASSERT (mtx_initialized (&bd->ct_mtx), ("ct mutex not initialized"));
s = splimp ();
CT_LOCK (bd);
/* 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)
continue;
if (d->running) {
CT_UNLOCK (bd);
splx (s);
return EBUSY;
}
}
/* Deactivate the timeout routine. */
callout_stop (&led_timo[b->num]);
CT_UNLOCK (bd);
bus_teardown_intr (dev, bd->irq_res, bd->intrhand);
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);
CT_LOCK (bd);
ct_close_board (b);
CT_UNLOCK (bd);
/* 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)
continue;
#ifdef NETGRAPH
if (d->node) {
ng_rmnode_self (d->node);
NG_NODE_UNREF (d->node);
d->node = NULL;
}
mtx_destroy (&d->queue.ifq_mtx);
mtx_destroy (&d->hi_queue.ifq_mtx);
#else
/* Detach from the packet filter list of interfaces. */
bpfdetach (d->ifp);
/* Detach from the sync PPP list. */
sppp_detach (d->ifp);
if_detach (d->ifp);
if_free (d->ifp);
IF_DRAIN (&d->queue);
mtx_destroy (&d->queue.ifq_mtx);
#endif
destroy_dev (d->devt);
}
CT_LOCK (bd);
ct_led_off (b);
CT_UNLOCK (bd);
callout_drain (&led_timo[b->num]);
splx (s);
s = splimp ();
for (c = b->chan; c < b->chan + NCHAN; ++c) {
drv_t *d = (drv_t*) c->sys;
if (!d || !d->chan->type)
continue;
/* Deallocate buffers. */
ct_bus_dma_mem_free (&d->dmamem);
}
bd->board = 0;
adapter [b->num] = 0;
free (b, M_DEVBUF);
splx (s);
mtx_destroy (&bd->ct_mtx);
return 0;
}
#ifndef NETGRAPH
static void ct_ifstart (struct ifnet *ifp)
{
drv_t *d = ifp->if_softc;
bdrv_t *bd = d->bd;
CT_LOCK (bd);
ct_start (d);
CT_UNLOCK (bd);
}
static void ct_ifwatchdog (struct ifnet *ifp)
{
drv_t *d = ifp->if_softc;
ct_watchdog (d);
}
static void ct_tlf (struct sppp *sp)
{
drv_t *d = SP2IFP(sp)->if_softc;
CT_DEBUG (d, ("ct_tlf\n"));
/* ct_set_dtr (d->chan, 0);*/
/* ct_set_rts (d->chan, 0);*/
if (!(sp->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO))
sp->pp_down (sp);
}
static void ct_tls (struct sppp *sp)
{
drv_t *d = SP2IFP(sp)->if_softc;
CT_DEBUG (d, ("ct_tls\n"));
if (!(sp->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO))
sp->pp_up (sp);
}
/*
* Initialization of interface.
* Ii seems to be never called by upper level.
*/
static void ct_initialize (void *softc)
{
drv_t *d = softc;
CT_DEBUG (d, ("ct_initialize\n"));
}
/*
* Process an ioctl request.
*/
static int ct_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data)
{
drv_t *d = ifp->if_softc;
bdrv_t *bd = d->bd;
int error, s, was_up, should_be_up;
was_up = (ifp->if_drv_flags & IFF_DRV_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: CT_DEBUG2 (d, ("ioctl 0x%lx\n", cmd)); return 0;
case SIOCADDMULTI: CT_DEBUG2 (d, ("SIOCADDMULTI\n")); return 0;
case SIOCDELMULTI: CT_DEBUG2 (d, ("SIOCDELMULTI\n")); return 0;
case SIOCSIFFLAGS: CT_DEBUG2 (d, ("SIOCSIFFLAGS\n")); break;
case SIOCSIFADDR: CT_DEBUG2 (d, ("SIOCSIFADDR\n")); break;
}
/* We get here only in case of SIFFLAGS or SIFADDR. */
s = splimp ();
CT_LOCK (bd);
should_be_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
if (! was_up && should_be_up) {
/* Interface goes up -- start it. */
ct_up (d);
ct_start (d);
} else if (was_up && ! should_be_up) {
/* Interface is going down -- stop it. */
/* if ((IFP2SP(d->ifp)->pp_flags & PP_FR) || (ifp->if_flags & PP_CISCO))*/
ct_down (d);
}
CT_UNLOCK (bd);
splx (s);
return 0;
}
#endif /*NETGRAPH*/
/*
* Stop the interface. Called on splimp().
*/
static void ct_down (drv_t *d)
{
int s = splimp ();
CT_DEBUG (d, ("ct_down\n"));
ct_set_dtr (d->chan, 0);
ct_set_rts (d->chan, 0);
d->running = 0;
splx (s);
}
/*
* Start the interface. Called on splimp().
*/
static void ct_up (drv_t *d)
{
int s = splimp ();
CT_DEBUG (d, ("ct_up\n"));
ct_set_dtr (d->chan, 1);
ct_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 ct_send (drv_t *d)
{
struct mbuf *m;
u_short len;
CT_DEBUG2 (d, ("ct_send, tn=%d\n", d->chan->tn));
/* No output if the interface is down. */
if (! d->running)
return;
/* No output if the modem is off. */
if (! ct_get_dsr (d->chan) && !ct_get_loop (d->chan))
return;
while (ct_buf_free (d->chan)) {
/* Get the packet to send. */
#ifdef NETGRAPH
IF_DEQUEUE (&d->hi_queue, m);
if (! m)
IF_DEQUEUE (&d->queue, m);
#else
m = sppp_dequeue (d->ifp);
#endif
if (! m)
return;
#ifndef NETGRAPH
BPF_MTAP (d->ifp, m);
#endif
len = m_length (m, NULL);
if (! m->m_next)
ct_send_packet (d->chan, (u_char*)mtod (m, caddr_t),
len, 0);
else {
m_copydata (m, 0, len, d->chan->tbuf[d->chan->te]);
ct_send_packet (d->chan, d->chan->tbuf[d->chan->te],
len, 0);
}
m_freem (m);
/* Set up transmit timeout, if the transmit ring is not empty.
* Transmit timeout is 10 seconds. */
#ifdef NETGRAPH
d->timeout = 10;
#else
d->ifp->if_timer = 10;
#endif
}
#ifndef NETGRAPH
d->ifp->if_drv_flags |= IFF_DRV_OACTIVE;
#endif
}
/*
* Start output on the interface.
* Always called on splimp().
*/
static void ct_start (drv_t *d)
{
int s = splimp ();
if (d->running) {
if (! d->chan->dtr)
ct_set_dtr (d->chan, 1);
if (! d->chan->rts)
ct_set_rts (d->chan, 1);
ct_send (d);
}
splx (s);
}
/*
* Handle transmit timeouts.
* Recover after lost transmit interrupts.
* Always called on splimp().
*/
static void ct_watchdog (drv_t *d)
{
bdrv_t *bd = d->bd;
int s;
s = splimp ();
CT_LOCK (bd);
CT_DEBUG (d, ("device timeout\n"));
if (d->running) {
ct_setup_chan (d->chan);
ct_start_chan (d->chan, 0, 0);
ct_set_dtr (d->chan, 1);
ct_set_rts (d->chan, 1);
ct_start (d);
}
CT_UNLOCK (bd);
splx (s);
}
/*
* Transmit callback function.
*/
static void ct_transmit (ct_chan_t *c, void *attachment, int len)
{
drv_t *d = c->sys;
if (!d)
return;
#ifdef NETGRAPH
d->timeout = 0;
#else
++d->ifp->if_opackets;
d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
d->ifp->if_timer = 0;
#endif
ct_start (d);
}
/*
* Process the received packet.
*/
static void ct_receive (ct_chan_t *c, char *data, int len)
{
drv_t *d = c->sys;
struct mbuf *m;
#ifdef NETGRAPH
int error;
#endif
if (!d || !d->running)
return;
m = makembuf (data, len);
if (! m) {
CT_DEBUG (d, ("no memory for packet\n"));
#ifndef NETGRAPH
++d->ifp->if_iqdrops;
#endif
return;
}
if (c->debug > 1)
printmbuf (m);
#ifdef NETGRAPH
m->m_pkthdr.rcvif = 0;
NG_SEND_DATA_ONLY (error, d->hook, m);
#else
++d->ifp->if_ipackets;
m->m_pkthdr.rcvif = d->ifp;
/* Check if there's a BPF listener on this interface.
* If so, hand off the raw packet to bpf. */
BPF_TAP (d->ifp, data, len);
IF_ENQUEUE (&d->queue, m);
#endif
}
/*
* Error callback function.
*/
static void ct_error (ct_chan_t *c, int data)
{
drv_t *d = c->sys;
if (!d)
return;
switch (data) {
case CT_FRAME:
CT_DEBUG (d, ("frame error\n"));
#ifndef NETGRAPH
++d->ifp->if_ierrors;
#endif
break;
case CT_CRC:
CT_DEBUG (d, ("crc error\n"));
#ifndef NETGRAPH
++d->ifp->if_ierrors;
#endif
break;
case CT_OVERRUN:
CT_DEBUG (d, ("overrun error\n"));
#ifndef NETGRAPH
++d->ifp->if_collisions;
++d->ifp->if_ierrors;
#endif
break;
case CT_OVERFLOW:
CT_DEBUG (d, ("overflow error\n"));
#ifndef NETGRAPH
++d->ifp->if_ierrors;
#endif
break;
case CT_UNDERRUN:
CT_DEBUG (d, ("underrun error\n"));
#ifdef NETGRAPH
d->timeout = 0;
#else
++d->ifp->if_oerrors;
d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
d->ifp->if_timer = 0;
#endif
ct_start (d);
break;
default:
CT_DEBUG (d, ("error #%d\n", data));
}
}
static int ct_open (struct cdev *dev, int oflags, int devtype, struct thread *td)
{
drv_t *d;
if (minor(dev) >= NCTAU*NCHAN || ! (d = channel[minor(dev)]))
return ENXIO;
CT_DEBUG2 (d, ("ct_open\n"));
return 0;
}
static int ct_close (struct cdev *dev, int fflag, int devtype, struct thread *td)
{
drv_t *d = channel [minor(dev)];
if (!d)
return 0;
CT_DEBUG2 (d, ("ct_close\n"));
return 0;
}
static int ct_modem_status (ct_chan_t *c)
{
drv_t *d = c->sys;
bdrv_t *bd;
int status, s;
if (!d)
return 0;
bd = d->bd;
status = d->running ? TIOCM_LE : 0;
s = splimp ();
CT_LOCK (bd);
if (ct_get_cd (c)) status |= TIOCM_CD;
if (ct_get_cts (c)) status |= TIOCM_CTS;
if (ct_get_dsr (c)) status |= TIOCM_DSR;
if (c->dtr) status |= TIOCM_DTR;
if (c->rts) status |= TIOCM_RTS;
CT_UNLOCK (bd);
splx (s);
return status;
}
/*
* Process an ioctl request on /dev/cronyx/ctauN.
*/
static int ct_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
{
drv_t *d = channel [minor (dev)];
bdrv_t *bd;
ct_chan_t *c;
struct serial_statistics *st;
struct e1_statistics *opte1;
int error, s;
char mask[16];
if (!d || !d->chan)
return 0;
bd = d->bd;
c = d->chan;
switch (cmd) {
case SERIAL_GETREGISTERED:
bzero (mask, sizeof(mask));
for (s=0; s<NCTAU*NCHAN; ++s)
if (channel [s])
mask [s/8] |= 1 << (s & 7);
bcopy (mask, data, sizeof (mask));
return 0;
#ifndef NETGRAPH
case SERIAL_GETPROTO:
strcpy ((char*)data, (IFP2SP(d->ifp)->pp_flags & PP_FR) ? "fr" :
(d->ifp->if_flags & PP_CISCO) ? "cisco" : "ppp");
return 0;
case SERIAL_SETPROTO:
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (d->ifp->if_drv_flags & IFF_DRV_RUNNING)
return EBUSY;
if (! strcmp ("cisco", (char*)data)) {
IFP2SP(d->ifp)->pp_flags &= ~(PP_FR);
IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
d->ifp->if_flags |= PP_CISCO;
} else if (! strcmp ("fr", (char*)data)) {
d->ifp->if_flags &= ~(PP_CISCO);
IFP2SP(d->ifp)->pp_flags |= PP_FR | PP_KEEPALIVE;
} else if (! strcmp ("ppp", (char*)data)) {
IFP2SP(d->ifp)->pp_flags &= ~(PP_FR | PP_KEEPALIVE);
d->ifp->if_flags &= ~(PP_CISCO);
} else
return EINVAL;
return 0;
case SERIAL_GETKEEPALIVE:
if ((IFP2SP(d->ifp)->pp_flags & PP_FR) ||
(d->ifp->if_flags & PP_CISCO))
return EINVAL;
*(int*)data = (IFP2SP(d->ifp)->pp_flags & PP_KEEPALIVE) ? 1 : 0;
return 0;
case SERIAL_SETKEEPALIVE:
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if ((IFP2SP(d->ifp)->pp_flags & PP_FR) ||
(d->ifp->if_flags & PP_CISCO))
return EINVAL;
if (*(int*)data)
IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
else
IFP2SP(d->ifp)->pp_flags &= ~PP_KEEPALIVE;
return 0;
#endif /*NETGRAPH*/
case SERIAL_GETMODE:
*(int*)data = SERIAL_HDLC;
return 0;
case SERIAL_GETCFG:
if (c->mode == M_HDLC)
return EINVAL;
switch (ct_get_config (c->board)) {
default: *(char*)data = 'a'; break;
case CFG_B: *(char*)data = 'b'; break;
case CFG_C: *(char*)data = 'c'; break;
}
return 0;
case SERIAL_SETCFG:
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (c->mode == M_HDLC)
return EINVAL;
s = splimp ();
CT_LOCK (bd);
switch (*(char*)data) {
case 'a': ct_set_config (c->board, CFG_A); break;
case 'b': ct_set_config (c->board, CFG_B); break;
case 'c': ct_set_config (c->board, CFG_C); break;
}
CT_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETSTAT:
st = (struct serial_statistics*) data;
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;
return 0;
case SERIAL_GETESTAT:
opte1 = (struct e1_statistics*)data;
opte1->status = c->status;
opte1->cursec = c->cursec;
opte1->totsec = c->totsec + c->cursec;
opte1->currnt.bpv = c->currnt.bpv;
opte1->currnt.fse = c->currnt.fse;
opte1->currnt.crce = c->currnt.crce;
opte1->currnt.rcrce = c->currnt.rcrce;
opte1->currnt.uas = c->currnt.uas;
opte1->currnt.les = c->currnt.les;
opte1->currnt.es = c->currnt.es;
opte1->currnt.bes = c->currnt.bes;
opte1->currnt.ses = c->currnt.ses;
opte1->currnt.oofs = c->currnt.oofs;
opte1->currnt.css = c->currnt.css;
opte1->currnt.dm = c->currnt.dm;
opte1->total.bpv = c->total.bpv + c->currnt.bpv;
opte1->total.fse = c->total.fse + c->currnt.fse;
opte1->total.crce = c->total.crce + c->currnt.crce;
opte1->total.rcrce = c->total.rcrce + c->currnt.rcrce;
opte1->total.uas = c->total.uas + c->currnt.uas;
opte1->total.les = c->total.les + c->currnt.les;
opte1->total.es = c->total.es + c->currnt.es;
opte1->total.bes = c->total.bes + c->currnt.bes;
opte1->total.ses = c->total.ses + c->currnt.ses;
opte1->total.oofs = c->total.oofs + c->currnt.oofs;
opte1->total.css = c->total.css + c->currnt.css;
opte1->total.dm = c->total.dm + c->currnt.dm;
for (s=0; s<48; ++s) {
opte1->interval[s].bpv = c->interval[s].bpv;
opte1->interval[s].fse = c->interval[s].fse;
opte1->interval[s].crce = c->interval[s].crce;
opte1->interval[s].rcrce = c->interval[s].rcrce;
opte1->interval[s].uas = c->interval[s].uas;
opte1->interval[s].les = c->interval[s].les;
opte1->interval[s].es = c->interval[s].es;
opte1->interval[s].bes = c->interval[s].bes;
opte1->interval[s].ses = c->interval[s].ses;
opte1->interval[s].oofs = c->interval[s].oofs;
opte1->interval[s].css = c->interval[s].css;
opte1->interval[s].dm = c->interval[s].dm;
}
return 0;
case SERIAL_CLRSTAT:
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
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;
bzero (&c->currnt, sizeof (c->currnt));
bzero (&c->total, sizeof (c->total));
bzero (c->interval, sizeof (c->interval));
return 0;
case SERIAL_GETBAUD:
*(long*)data = ct_get_baud(c);
return 0;
case SERIAL_SETBAUD:
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
s = splimp ();
CT_LOCK (bd);
ct_set_baud (c, *(long*)data);
CT_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETLOOP:
*(int*)data = ct_get_loop (c);
return 0;
case SERIAL_SETLOOP:
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
s = splimp ();
CT_LOCK (bd);
ct_set_loop (c, *(int*)data);
CT_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETDPLL:
if (c->mode == M_E1 || c->mode == M_G703)
return EINVAL;
*(int*)data = ct_get_dpll (c);
return 0;
case SERIAL_SETDPLL:
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (c->mode == M_E1 || c->mode == M_G703)
return EINVAL;
s = splimp ();
CT_LOCK (bd);
ct_set_dpll (c, *(int*)data);
CT_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETNRZI:
if (c->mode == M_E1 || c->mode == M_G703)
return EINVAL;
*(int*)data = ct_get_nrzi (c);
return 0;
case SERIAL_SETNRZI:
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (c->mode == M_E1 || c->mode == M_G703)
return EINVAL;
s = splimp ();
CT_LOCK (bd);
ct_set_nrzi (c, *(int*)data);
CT_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETDEBUG:
*(int*)data = c->debug;
return 0;
case SERIAL_SETDEBUG:
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
c->debug = *(int*)data;
#ifndef NETGRAPH
if (d->chan->debug)
d->ifp->if_flags |= IFF_DEBUG;
else
d->ifp->if_flags &= (~IFF_DEBUG);
#endif
return 0;
case SERIAL_GETHIGAIN:
if (c->mode != M_E1)
return EINVAL;
*(int*)data = ct_get_higain (c);
return 0;
case SERIAL_SETHIGAIN:
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
s = splimp ();
CT_LOCK (bd);
ct_set_higain (c, *(int*)data);
CT_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETPHONY:
CT_DEBUG2 (d, ("ioctl: getphony\n"));
if (c->mode != M_E1)
return EINVAL;
*(int*)data = c->gopt.phony;
return 0;
case SERIAL_SETPHONY:
CT_DEBUG2 (d, ("ioctl: setphony\n"));
if (c->mode != M_E1)
return EINVAL;
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
s = splimp ();
CT_LOCK (bd);
ct_set_phony (c, *(int*)data);
CT_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETCLK:
if (c->mode != M_E1 && c->mode != M_G703)
return EINVAL;
switch (ct_get_clk(c)) {
default: *(int*)data = E1CLK_INTERNAL; break;
case GCLK_RCV: *(int*)data = E1CLK_RECEIVE; break;
case GCLK_RCLKO: *(int*)data = c->num ?
E1CLK_RECEIVE_CHAN0 : E1CLK_RECEIVE_CHAN1; break;
}
return 0;
case SERIAL_SETCLK:
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
s = splimp ();
CT_LOCK (bd);
switch (*(int*)data) {
default: ct_set_clk (c, GCLK_INT); break;
case E1CLK_RECEIVE: ct_set_clk (c, GCLK_RCV); break;
case E1CLK_RECEIVE_CHAN0:
case E1CLK_RECEIVE_CHAN1:
ct_set_clk (c, GCLK_RCLKO); break;
}
CT_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETTIMESLOTS:
if (c->mode != M_E1)
return EINVAL;
*(long*)data = ct_get_ts (c);
return 0;
case SERIAL_SETTIMESLOTS:
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
s = splimp ();
CT_LOCK (bd);
ct_set_ts (c, *(long*)data);
CT_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETSUBCHAN:
if (c->mode != M_E1)
return EINVAL;
*(long*)data = ct_get_subchan (c->board);
return 0;
case SERIAL_SETSUBCHAN:
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
s = splimp ();
CT_LOCK (bd);
ct_set_subchan (c->board, *(long*)data);
CT_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETINVCLK:
case SERIAL_GETINVTCLK:
if (c->mode == M_E1 || c->mode == M_G703)
return EINVAL;
*(int*)data = ct_get_invtxc (c);
return 0;
case SERIAL_GETINVRCLK:
if (c->mode == M_E1 || c->mode == M_G703)
return EINVAL;
*(int*)data = ct_get_invrxc (c);
return 0;
case SERIAL_SETINVCLK:
case SERIAL_SETINVTCLK:
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (c->mode == M_E1 || c->mode == M_G703)
return EINVAL;
s = splimp ();
CT_LOCK (bd);
ct_set_invtxc (c, *(int*)data);
CT_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_SETINVRCLK:
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (c->mode == M_E1 || c->mode == M_G703)
return EINVAL;
s = splimp ();
CT_LOCK (bd);
ct_set_invrxc (c, *(int*)data);
CT_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETLEVEL:
if (c->mode != M_G703)
return EINVAL;
s = splimp ();
CT_LOCK (bd);
*(int*)data = ct_get_lq (c);
CT_UNLOCK (bd);
splx (s);
return 0;
case TIOCSDTR: /* Set DTR */
s = splimp ();
CT_LOCK (bd);
ct_set_dtr (c, 1);
CT_UNLOCK (bd);
splx (s);
return 0;
case TIOCCDTR: /* Clear DTR */
s = splimp ();
CT_LOCK (bd);
ct_set_dtr (c, 0);
CT_UNLOCK (bd);
splx (s);
return 0;
case TIOCMSET: /* Set DTR/RTS */
s = splimp ();
CT_LOCK (bd);
ct_set_dtr (c, (*(int*)data & TIOCM_DTR) ? 1 : 0);
ct_set_rts (c, (*(int*)data & TIOCM_RTS) ? 1 : 0);
CT_UNLOCK (bd);
splx (s);
return 0;
case TIOCMBIS: /* Add DTR/RTS */
s = splimp ();
CT_LOCK (bd);
if (*(int*)data & TIOCM_DTR) ct_set_dtr (c, 1);
if (*(int*)data & TIOCM_RTS) ct_set_rts (c, 1);
CT_UNLOCK (bd);
splx (s);
return 0;
case TIOCMBIC: /* Clear DTR/RTS */
s = splimp ();
CT_LOCK (bd);
if (*(int*)data & TIOCM_DTR) ct_set_dtr (c, 0);
if (*(int*)data & TIOCM_RTS) ct_set_rts (c, 0);
CT_UNLOCK (bd);
splx (s);
return 0;
case TIOCMGET: /* Get modem status */
*(int*)data = ct_modem_status (c);
return 0;
}
return ENOTTY;
}
#ifdef NETGRAPH
static int ng_ct_constructor (node_p node)
{
drv_t *d = NG_NODE_PRIVATE (node);
CT_DEBUG (d, ("Constructor\n"));
return EINVAL;
}
static int ng_ct_newhook (node_p node, hook_p hook, const char *name)
{
int s;
drv_t *d = NG_NODE_PRIVATE (node);
if (!d)
return EINVAL;
bdrv_t *bd = d->bd;
/* Attach debug hook */
if (strcmp (name, NG_CT_HOOK_DEBUG) == 0) {
NG_HOOK_SET_PRIVATE (hook, NULL);
d->debug_hook = hook;
return 0;
}
/* Check for raw hook */
if (strcmp (name, NG_CT_HOOK_RAW) != 0)
return EINVAL;
NG_HOOK_SET_PRIVATE (hook, d);
d->hook = hook;
s = splimp ();
CT_LOCK (bd);
ct_up (d);
CT_UNLOCK (bd);
splx (s);
return 0;
}
static char *format_timeslots (u_long s)
{
static char buf [100];
char *p = buf;
int i;
for (i=1; i<32; ++i)
if ((s >> i) & 1) {
int prev = (i > 1) & (s >> (i-1));
int next = (i < 31) & (s >> (i+1));
if (prev) {
if (next)
continue;
*p++ = '-';
} else if (p > buf)
*p++ = ',';
if (i >= 10)
*p++ = '0' + i / 10;
*p++ = '0' + i % 10;
}
*p = 0;
return buf;
}
static int print_modems (char *s, ct_chan_t *c, int need_header)
{
int status = ct_modem_status (c);
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, ct_chan_t *c, int need_header)
{
struct serial_statistics st;
int length = 0;
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;
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",
st.rintr, st.tintr, st.mintr, st.ibytes, st.ipkts,
st.ierrs, st.obytes, st.opkts, st.oerrs);
return length;
}
static char *format_e1_status (u_char status)
{
static char buf [80];
if (status & E1_NOALARM)
return "Ok";
buf[0] = 0;
if (status & E1_LOS) strcat (buf, ",LOS");
if (status & E1_AIS) strcat (buf, ",AIS");
if (status & E1_LOF) strcat (buf, ",LOF");
if (status & E1_LOMF) strcat (buf, ",LOMF");
if (status & E1_FARLOF) strcat (buf, ",FARLOF");
if (status & E1_AIS16) strcat (buf, ",AIS16");
if (status & E1_FARLOMF) strcat (buf, ",FARLOMF");
if (status & E1_TSTREQ) strcat (buf, ",TSTREQ");
if (status & E1_TSTERR) strcat (buf, ",TSTERR");
if (buf[0] == ',')
return buf+1;
return "Unknown";
}
static int print_frac (char *s, int leftalign, u_long numerator, u_long divider)
{
int n, length = 0;
if (numerator < 1 || divider < 1) {
length += sprintf (s+length, leftalign ? "/- " : " -");
return length;
}
n = (int) (0.5 + 1000.0 * numerator / divider);
if (n < 1000) {
length += sprintf (s+length, leftalign ? "/.%-3d" : " .%03d", n);
return length;
}
*(s + length) = leftalign ? '/' : ' ';
length ++;
if (n >= 1000000) n = (n+500) / 1000 * 1000;
else if (n >= 100000) n = (n+50) / 100 * 100;
else if (n >= 10000) n = (n+5) / 10 * 10;
switch (n) {
case 1000: length += printf (s+length, ".999"); return length;
case 10000: n = 9990; break;
case 100000: n = 99900; break;
case 1000000: n = 999000; break;
}
if (n < 10000) length += sprintf (s+length, "%d.%d", n/1000, n/10%100);
else if (n < 100000) length += sprintf (s+length, "%d.%d", n/1000, n/100%10);
else if (n < 1000000) length += sprintf (s+length, "%d.", n/1000);
else length += sprintf (s+length, "%d", n/1000);
return length;
}
static int print_e1_stats (char *s, ct_chan_t *c)
{
struct e1_counters total;
u_long totsec;
int length = 0;
totsec = c->totsec + c->cursec;
total.bpv = c->total.bpv + c->currnt.bpv;
total.fse = c->total.fse + c->currnt.fse;
total.crce = c->total.crce + c->currnt.crce;
total.rcrce = c->total.rcrce + c->currnt.rcrce;
total.uas = c->total.uas + c->currnt.uas;
total.les = c->total.les + c->currnt.les;
total.es = c->total.es + c->currnt.es;
total.bes = c->total.bes + c->currnt.bes;
total.ses = c->total.ses + c->currnt.ses;
total.oofs = c->total.oofs + c->currnt.oofs;
total.css = c->total.css + c->currnt.css;
total.dm = c->total.dm + c->currnt.dm;
length += sprintf (s + length, " Unav/Degr Bpv/Fsyn CRC/RCRC Err/Lerr Sev/Bur Oof/Slp Status\n");
/* Unavailable seconds, degraded minutes */
length += print_frac (s + length, 0, c->currnt.uas, c->cursec);
length += print_frac (s + length, 1, 60 * c->currnt.dm, c->cursec);
/* Bipolar violations, frame sync errors */
length += print_frac (s + length, 0, c->currnt.bpv, c->cursec);
length += print_frac (s + length, 1, c->currnt.fse, c->cursec);
/* CRC errors, remote CRC errors (E-bit) */
length += print_frac (s + length, 0, c->currnt.crce, c->cursec);
length += print_frac (s + length, 1, c->currnt.rcrce, c->cursec);
/* Errored seconds, line errored seconds */
length += print_frac (s + length, 0, c->currnt.es, c->cursec);
length += print_frac (s + length, 1, c->currnt.les, c->cursec);
/* Severely errored seconds, burst errored seconds */
length += print_frac (s + length, 0, c->currnt.ses, c->cursec);
length += print_frac (s + length, 1, c->currnt.bes, c->cursec);
/* Out of frame seconds, controlled slip seconds */
length += print_frac (s + length, 0, c->currnt.oofs, c->cursec);
length += print_frac (s + length, 1, c->currnt.css, c->cursec);
length += sprintf (s + length, " %s\n", format_e1_status (c->status));
/* Print total statistics. */
length += print_frac (s + length, 0, total.uas, totsec);
length += print_frac (s + length, 1, 60 * total.dm, totsec);
length += print_frac (s + length, 0, total.bpv, totsec);
length += print_frac (s + length, 1, total.fse, totsec);
length += print_frac (s + length, 0, total.crce, totsec);
length += print_frac (s + length, 1, total.rcrce, totsec);
length += print_frac (s + length, 0, total.es, totsec);
length += print_frac (s + length, 1, total.les, totsec);
length += print_frac (s + length, 0, total.ses, totsec);
length += print_frac (s + length, 1, total.bes, totsec);
length += print_frac (s + length, 0, total.oofs, totsec);
length += print_frac (s + length, 1, total.css, totsec);
length += sprintf (s + length, " -- Total\n");
return length;
}
static int print_chan (char *s, ct_chan_t *c)
{
drv_t *d = c->sys;
bdrv_t *bd = d->bd;
int length = 0;
length += sprintf (s + length, "ct%d", c->board->num * NCHAN + c->num);
if (d->chan->debug)
length += sprintf (s + length, " debug=%d", d->chan->debug);
switch (ct_get_config (c->board)) {
case CFG_A: length += sprintf (s + length, " cfg=A"); break;
case CFG_B: length += sprintf (s + length, " cfg=B"); break;
case CFG_C: length += sprintf (s + length, " cfg=C"); break;
default: length += sprintf (s + length, " cfg=unknown"); break;
}
if (ct_get_baud (c))
length += sprintf (s + length, " %ld", ct_get_baud (c));
else
length += sprintf (s + length, " extclock");
if (c->mode == M_E1 || c->mode == M_G703)
switch (ct_get_clk(c)) {
case GCLK_INT : length += sprintf (s + length, " syn=int"); break;
case GCLK_RCV : length += sprintf (s + length, " syn=rcv"); break;
case GCLK_RCLKO : length += sprintf (s + length, " syn=xrcv"); break;
}
if (c->mode == M_HDLC) {
length += sprintf (s + length, " dpll=%s", ct_get_dpll (c) ? "on" : "off");
length += sprintf (s + length, " nrzi=%s", ct_get_nrzi (c) ? "on" : "off");
length += sprintf (s + length, " invtclk=%s", ct_get_invtxc (c) ? "on" : "off");
length += sprintf (s + length, " invrclk=%s", ct_get_invrxc (c) ? "on" : "off");
}
if (c->mode == M_E1)
length += sprintf (s + length, " higain=%s", ct_get_higain (c)? "on" : "off");
length += sprintf (s + length, " loop=%s", ct_get_loop (c) ? "on" : "off");
if (c->mode == M_E1)
length += sprintf (s + length, " ts=%s", format_timeslots (ct_get_ts(c)));
if (c->mode == M_E1 && ct_get_config (c->board) != CFG_A)
length += sprintf (s + length, " pass=%s", format_timeslots (ct_get_subchan(c->board)));
if (c->mode == M_G703) {
int lq, x;
x = splimp ();
CT_LOCK (bd);
lq = ct_get_lq (c);
CT_UNLOCK (bd);
splx (x);
length += sprintf (s + length, " (level=-%.1fdB)", lq / 10.0);
}
length += sprintf (s + length, "\n");
return length;
}
static int ng_ct_rcvmsg (node_p node, item_p item, hook_p lasthook)
{
drv_t *d = NG_NODE_PRIVATE (node);
struct ng_mesg *msg;
struct ng_mesg *resp = NULL;
int error = 0;
if (!d)
return EINVAL;
CT_DEBUG (d, ("Rcvmsg\n"));
NGI_GET_MSG (item, msg);
switch (msg->header.typecookie) {
default:
error = EINVAL;
break;
case NGM_CT_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;
NG_MKRESPONSE (resp, msg, dl, M_NOWAIT);
if (! resp) {
error = ENOMEM;
break;
}
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);
l += print_e1_stats (s + l, d->chan);
strncpy ((resp)->header.cmdstr, "status", NG_CMDSTRLEN);
}
break;
}
break;
}
NG_RESPOND_MSG (error, node, item, resp);
NG_FREE_MSG (msg);
return error;
}
static int ng_ct_rcvdata (hook_p hook, item_p item)
{
drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE(hook));
struct mbuf *m;
struct ng_tag_prio *ptag;
bdrv_t *bd;
struct ifqueue *q;
int s;
if (!d)
return ENETDOWN;
bd = d->bd;
NGI_GET_M (item, m);
NG_FREE_ITEM (item);
if (! NG_HOOK_PRIVATE (hook) || ! d) {
NG_FREE_M (m);
return ENETDOWN;
}
/* Check for high priority data */
if ((ptag = (struct ng_tag_prio *)m_tag_locate(m, NGM_GENERIC_COOKIE,
NG_TAG_PRIO, NULL)) != NULL && (ptag->priority > NG_PRIO_CUTOFF) )
q = &d->hi_queue;
else
q = &d->queue;
s = splimp ();
CT_LOCK (bd);
IF_LOCK (q);
if (_IF_QFULL (q)) {
_IF_DROP (q);
IF_UNLOCK (q);
CT_UNLOCK (bd);
splx (s);
NG_FREE_M (m);
return ENOBUFS;
}
_IF_ENQUEUE (q, m);
IF_UNLOCK (q);
ct_start (d);
CT_UNLOCK (bd);
splx (s);
return 0;
}
static int ng_ct_rmnode (node_p node)
{
drv_t *d = NG_NODE_PRIVATE (node);
bdrv_t *bd;
CT_DEBUG (d, ("Rmnode\n"));
if (d && d->running) {
bd = d->bd;
int s = splimp ();
CT_LOCK (bd);
ct_down (d);
CT_UNLOCK (bd);
splx (s);
}
#ifdef KLD_MODULE
if (node->nd_flags & NGF_REALLY_DIE) {
NG_NODE_SET_PRIVATE (node, NULL);
NG_NODE_UNREF (node);
}
NG_NODE_REVIVE(node); /* Persistant node */
#endif
return 0;
}
static void ng_ct_watchdog (void *arg)
{
drv_t *d = arg;
if (!d)
return;
if (d->timeout == 1)
ct_watchdog (d);
if (d->timeout)
d->timeout--;
callout_reset (&d->timeout_handle, hz, ng_ct_watchdog, d);
}
static int ng_ct_connect (hook_p hook)
{
drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
if (!d)
return 0;
callout_reset (&d->timeout_handle, hz, ng_ct_watchdog, d);
return 0;
}
static int ng_ct_disconnect (hook_p hook)
{
drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
bdrv_t *bd;
if (!d)
return 0;
bd = d->bd;
CT_LOCK (bd);
if (NG_HOOK_PRIVATE (hook))
ct_down (d);
CT_UNLOCK (bd);
/* If we were wait it than it reasserted now, just stop it. */
if (!callout_drain (&d->timeout_handle))
callout_stop (&d->timeout_handle);
return 0;
}
#endif
static int ct_modevent (module_t mod, int type, void *unused)
{
static int load_count = 0;
if (ct_mpsafenet)
ct_cdevsw.d_flags &= ~D_NEEDGIANT;
switch (type) {
case MOD_LOAD:
#ifdef NETGRAPH
if (ng_newtype (&typestruct))
printf ("Failed to register ng_ct\n");
#endif
++load_count;
callout_init (&timeout_handle, ct_mpsafenet?CALLOUT_MPSAFE:0);
callout_reset (&timeout_handle, hz*5, ct_timeout, 0);
break;
case MOD_UNLOAD:
if (load_count == 1) {
printf ("Removing device entry for Tau-ISA\n");
#ifdef NETGRAPH
ng_rmtype (&typestruct);
#endif
}
/* If we were wait it than it reasserted now, just stop it. */
if (!callout_drain (&timeout_handle))
callout_stop (&timeout_handle);
--load_count;
break;
case MOD_SHUTDOWN:
break;
}
return 0;
}
#ifdef NETGRAPH
static struct ng_type typestruct = {
.version = NG_ABI_VERSION,
.name = NG_CT_NODE_TYPE,
.constructor = ng_ct_constructor,
.rcvmsg = ng_ct_rcvmsg,
.shutdown = ng_ct_rmnode,
.newhook = ng_ct_newhook,
.connect = ng_ct_connect,
.rcvdata = ng_ct_rcvdata,
.disconnect = ng_ct_disconnect,
};
#endif /*NETGRAPH*/
#ifdef NETGRAPH
MODULE_DEPEND (ng_ct, netgraph, NG_ABI_VERSION, NG_ABI_VERSION, NG_ABI_VERSION);
#else
MODULE_DEPEND (ct, sppp, 1, 1, 1);
#endif
DRIVER_MODULE (ct, isa, ct_isa_driver, ct_devclass, ct_modevent, NULL);
MODULE_VERSION (ct, 1);
Reference in New Issue View Git Blame Copy Permalink