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/*-
* Cronyx-Tau-PCI adapter driver for FreeBSD.
* Supports PPP/HDLC, Cisco/HDLC and FrameRelay protocol in synchronous mode,
* and asyncronous channels with full modem control.
* Keepalive protocol implemented in both Cisco and PPP modes.
*
* Copyright (C) 1999-2004 Cronyx Engineering.
* Author: Kurakin Roman, <rik@cronyx.ru>
*
* Copyright (C) 1999-2002 Cronyx Engineering.
* Author: Serge Vakulenko, <vak@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_cp.c,v 1.1.2.41 2004/06/23 17:09:13 rik Exp $
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/dev/cp/if_cp.c 229601 2012-01-05 17:12:20Z dim $");
#include <sys/param.h>
#include <sys/ucred.h>
#include <sys/proc.h>
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/conf.h>
#include <sys/malloc.h>
#include <sys/priv.h>
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/sysctl.h>
#include <sys/tty.h>
#include <sys/bus.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <net/if.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include "opt_ng_cronyx.h"
#ifdef NETGRAPH_CRONYX
# include "opt_netgraph.h"
# ifndef NETGRAPH
# error #option NETGRAPH missed from configuration
# endif
# include <netgraph/ng_message.h>
# include <netgraph/netgraph.h>
# include <dev/cp/ng_cp.h>
#else
# include <net/if_sppp.h>
# include <net/if_types.h>
#include <dev/pci/pcivar.h>
# define PP_CISCO IFF_LINK2
# include <net/bpf.h>
#endif
#include <dev/cx/machdep.h>
#include <dev/cp/cpddk.h>
#include <machine/cserial.h>
#include <machine/resource.h>
#include <machine/pmap.h>
/* 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 CP_DEBUG(d,s) ({if (d->chan->debug) {\
printf ("%s: ", d->name); printf s;}})
#define CP_DEBUG2(d,s) ({if (d->chan->debug>1) {\
printf ("%s: ", d->name); printf s;}})
#define CP_LOCK_NAME "cpX"
#define CP_LOCK(_bd) mtx_lock (&(_bd)->cp_mtx)
#define CP_UNLOCK(_bd) mtx_unlock (&(_bd)->cp_mtx)
#define CP_LOCK_ASSERT(_bd) mtx_assert (&(_bd)->cp_mtx, MA_OWNED)
static int cp_probe __P((device_t));
static int cp_attach __P((device_t));
static int cp_detach __P((device_t));
static device_method_t cp_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, cp_probe),
DEVMETHOD(device_attach, cp_attach),
DEVMETHOD(device_detach, cp_detach),
{0, 0}
};
typedef struct _cp_dma_mem_t {
unsigned long phys;
void *virt;
size_t size;
bus_dma_tag_t dmat;
bus_dmamap_t mapp;
} cp_dma_mem_t;
typedef struct _drv_t {
char name [8];
int running;
cp_chan_t *chan;
cp_board_t *board;
cp_dma_mem_t dmamem;
#ifdef NETGRAPH
char nodename [NG_NODESIZE];
hook_p hook;
hook_p debug_hook;
node_p node;
struct ifqueue queue;
struct ifqueue hi_queue;
#else
struct ifqueue queue;
struct ifnet *ifp;
#endif
short timeout;
struct callout timeout_handle;
struct cdev *devt;
} drv_t;
typedef struct _bdrv_t {
cp_board_t *board;
struct resource *cp_res;
struct resource *cp_irq;
void *cp_intrhand;
cp_dma_mem_t dmamem;
drv_t channel [NCHAN];
struct mtx cp_mtx;
} bdrv_t;
static driver_t cp_driver = {
"cp",
cp_methods,
sizeof(bdrv_t),
};
static devclass_t cp_devclass;
static void cp_receive (cp_chan_t *c, unsigned char *data, int len);
static void cp_transmit (cp_chan_t *c, void *attachment, int len);
static void cp_error (cp_chan_t *c, int data);
static void cp_up (drv_t *d);
static void cp_start (drv_t *d);
static void cp_down (drv_t *d);
static void cp_watchdog (drv_t *d);
static void cp_watchdog_timer (void *arg);
#ifdef NETGRAPH
extern struct ng_type typestruct;
#else
static void cp_ifstart (struct ifnet *ifp);
static void cp_tlf (struct sppp *sp);
static void cp_tls (struct sppp *sp);
static int cp_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data);
static void cp_initialize (void *softc);
#endif
static cp_board_t *adapter [NBRD];
static drv_t *channel [NBRD*NCHAN];
static struct callout led_timo [NBRD];
static struct callout timeout_handle;
static int cp_destroy = 0;
static int cp_open (struct cdev *dev, int oflags, int devtype, struct thread *td);
static int cp_close (struct cdev *dev, int fflag, int devtype, struct thread *td);
static int cp_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td);
static struct cdevsw cp_cdevsw = {
.d_version = D_VERSION,
.d_open = cp_open,
.d_close = cp_close,
.d_ioctl = cp_ioctl,
.d_name = "cp",
};
/*
* 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, unsigned 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 int cp_probe (device_t dev)
{
if ((pci_get_vendor (dev) == cp_vendor_id) &&
(pci_get_device (dev) == cp_device_id)) {
device_set_desc (dev, "Cronyx-Tau-PCI serial adapter");
return BUS_PROBE_DEFAULT;
}
return ENXIO;
}
static void cp_timeout (void *arg)
{
drv_t *d;
int s, i, k;
for (i = 0; i < NBRD; ++i) {
if (adapter[i] == NULL)
continue;
for (k = 0; k < NCHAN; ++k) {
s = splimp ();
if (cp_destroy) {
splx (s);
return;
}
d = channel[i * NCHAN + k];
if (!d) {
splx (s);
continue;
}
CP_LOCK ((bdrv_t *)d->board->sys);
switch (d->chan->type) {
case T_G703:
cp_g703_timer (d->chan);
break;
case T_E1:
cp_e1_timer (d->chan);
break;
case T_E3:
case T_T3:
case T_STS1:
cp_e3_timer (d->chan);
break;
default:
break;
}
CP_UNLOCK ((bdrv_t *)d->board->sys);
splx (s);
}
}
s = splimp ();
if (!cp_destroy)
callout_reset (&timeout_handle, hz, cp_timeout, 0);
splx (s);
}
static void cp_led_off (void *arg)
{
cp_board_t *b = arg;
bdrv_t *bd = (bdrv_t *) b->sys;
int s;
s = splimp ();
if (cp_destroy) {
splx (s);
return;
}
CP_LOCK (bd);
cp_led (b, 0);
CP_UNLOCK (bd);
splx (s);
}
static void cp_intr (void *arg)
{
bdrv_t *bd = arg;
cp_board_t *b = bd->board;
#ifndef NETGRAPH
int i;
#endif
int s = splimp ();
if (cp_destroy) {
splx (s);
return;
}
CP_LOCK (bd);
/* Check if we are ready */
if (b->sys == NULL) {
/* Not we are not, just cleanup. */
cp_interrupt_poll (b, 1);
CP_UNLOCK (bd);
return;
}
/* Turn LED on. */
cp_led (b, 1);
cp_interrupt (b);
/* Turn LED off 50 msec later. */
callout_reset (&led_timo[b->num], hz/20, cp_led_off, b);
CP_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 void
cp_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
cp_bus_dma_mem_alloc (int bnum, int cnum, cp_dma_mem_t *dmem)
{
int error;
error = bus_dma_tag_create (NULL, 16, 0, BUS_SPACE_MAXADDR_32BIT,
BUS_SPACE_MAXADDR, NULL, NULL, dmem->size, 1,
dmem->size, 0, NULL, NULL, &dmem->dmat);
if (error) {
if (cnum >= 0) printf ("cp%d-%d: ", bnum, cnum);
else printf ("cp%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 ("cp%d-%d: ", bnum, cnum);
else printf ("cp%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, cp_bus_dmamap_addr, &dmem->phys, 0);
if (error) {
if (cnum >= 0) printf ("cp%d-%d: ", bnum, cnum);
else printf ("cp%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
cp_bus_dma_mem_free (cp_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);
}
/*
* Called if the probe succeeded.
*/
static int cp_attach (device_t dev)
{
bdrv_t *bd = device_get_softc (dev);
int unit = device_get_unit (dev);
char *cp_ln = CP_LOCK_NAME;
unsigned short res;
vm_offset_t vbase;
int rid, error;
cp_board_t *b;
cp_chan_t *c;
drv_t *d;
int s = splimp ();
b = malloc (sizeof(cp_board_t), M_DEVBUF, M_WAITOK);
if (!b) {
printf ("cp%d: couldn't allocate memory\n", unit);
splx (s);
return (ENXIO);
}
bzero (b, sizeof(cp_board_t));
bd->board = b;
rid = PCIR_BAR(0);
bd->cp_res = bus_alloc_resource (dev, SYS_RES_MEMORY, &rid,
0, ~0, 1, RF_ACTIVE);
if (! bd->cp_res) {
printf ("cp%d: cannot map memory\n", unit);
free (b, M_DEVBUF);
splx (s);
return (ENXIO);
}
vbase = (vm_offset_t) rman_get_virtual (bd->cp_res);
cp_ln[2] = '0' + unit;
mtx_init (&bd->cp_mtx, cp_ln, MTX_NETWORK_LOCK, MTX_DEF|MTX_RECURSE);
res = cp_init (b, unit, (u_char*) vbase);
if (res) {
printf ("cp%d: can't init, error code:%x\n", unit, res);
bus_release_resource (dev, SYS_RES_MEMORY, PCIR_BAR(0), bd->cp_res);
free (b, M_DEVBUF);
splx (s);
return (ENXIO);
}
bd->dmamem.size = sizeof(cp_qbuf_t);
if (! cp_bus_dma_mem_alloc (unit, -1, &bd->dmamem)) {
free (b, M_DEVBUF);
splx (s);
return (ENXIO);
}
CP_LOCK (bd);
cp_reset (b, bd->dmamem.virt, bd->dmamem.phys);
CP_UNLOCK (bd);
rid = 0;
bd->cp_irq = bus_alloc_resource (dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
RF_SHAREABLE | RF_ACTIVE);
if (! bd->cp_irq) {
cp_destroy = 1;
printf ("cp%d: cannot map interrupt\n", unit);
bus_release_resource (dev, SYS_RES_MEMORY,
PCIR_BAR(0), bd->cp_res);
mtx_destroy (&bd->cp_mtx);
free (b, M_DEVBUF);
splx (s);
return (ENXIO);
}
callout_init (&led_timo[unit], CALLOUT_MPSAFE);
error = bus_setup_intr (dev, bd->cp_irq,
INTR_TYPE_NET|INTR_MPSAFE,
NULL, cp_intr, bd, &bd->cp_intrhand);
if (error) {
cp_destroy = 1;
printf ("cp%d: cannot set up irq\n", unit);
bus_release_resource (dev, SYS_RES_IRQ, 0, bd->cp_irq);
bus_release_resource (dev, SYS_RES_MEMORY,
PCIR_BAR(0), bd->cp_res);
mtx_destroy (&bd->cp_mtx);
free (b, M_DEVBUF);
splx (s);
return (ENXIO);
}
printf ("cp%d: %s, clock %ld MHz\n", unit, b->name, b->osc / 1000000);
for (c = b->chan; c < b->chan + NCHAN; ++c) {
if (! c->type)
continue;
d = &bd->channel[c->num];
d->dmamem.size = sizeof(cp_buf_t);
if (! cp_bus_dma_mem_alloc (unit, c->num, &d->dmamem))
continue;
channel [b->num*NCHAN + c->num] = d;
sprintf (d->name, "cp%d.%d", b->num, c->num);
d->board = b;
d->chan = c;
c->sys = d;
callout_init (&d->timeout_handle, CALLOUT_MPSAFE);
#ifdef NETGRAPH
if (ng_make_node_common (&typestruct, &d->node) != 0) {
printf ("%s: cannot make common node\n", d->name);
d->node = NULL;
continue;
}
NG_NODE_SET_PRIVATE (d->node, d);
sprintf (d->nodename, "%s%d", NG_CP_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);
continue;
}
d->queue.ifq_maxlen = ifqmaxlen;
d->hi_queue.ifq_maxlen = ifqmaxlen;
mtx_init (&d->queue.ifq_mtx, "cp_queue", NULL, MTX_DEF);
mtx_init (&d->hi_queue.ifq_mtx, "cp_queue_hi", NULL, MTX_DEF);
#else /*NETGRAPH*/
d->ifp = if_alloc(IFT_PPP);
if (d->ifp == NULL) {
printf ("%s: cannot if_alloc() interface\n", d->name);
continue;
}
d->ifp->if_softc = d;
if_initname (d->ifp, "cp", b->num * NCHAN + c->num);
d->ifp->if_mtu = PP_MTU;
d->ifp->if_flags = IFF_POINTOPOINT | IFF_MULTICAST;
d->ifp->if_ioctl = cp_sioctl;
d->ifp->if_start = cp_ifstart;
d->ifp->if_init = cp_initialize;
d->queue.ifq_maxlen = NRBUF;
mtx_init (&d->queue.ifq_mtx, "cp_queue", NULL, MTX_DEF);
sppp_attach (d->ifp);
if_attach (d->ifp);
IFP2SP(d->ifp)->pp_tlf = cp_tlf;
IFP2SP(d->ifp)->pp_tls = cp_tls;
/* If BPF is in the kernel, call the attach for it.
* The header size of PPP or Cisco/HDLC is 4 bytes. */
bpfattach (d->ifp, DLT_PPP, 4);
#endif /*NETGRAPH*/
cp_start_e1 (c);
cp_start_chan (c, 1, 1, d->dmamem.virt, d->dmamem.phys);
/* Register callback functions. */
cp_register_transmit (c, &cp_transmit);
cp_register_receive (c, &cp_receive);
cp_register_error (c, &cp_error);
d->devt = make_dev (&cp_cdevsw, b->num*NCHAN+c->num, UID_ROOT,
GID_WHEEL, 0600, "cp%d", b->num*NCHAN+c->num);
}
CP_LOCK (bd);
b->sys = bd;
adapter[unit] = b;
CP_UNLOCK (bd);
splx (s);
return 0;
}
static int cp_detach (device_t dev)
{
bdrv_t *bd = device_get_softc (dev);
cp_board_t *b = bd->board;
cp_chan_t *c;
int s;
KASSERT (mtx_initialized (&bd->cp_mtx), ("cp mutex not initialized"));
s = splimp ();
CP_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) {
CP_UNLOCK (bd);
splx (s);
return EBUSY;
}
}
/* Ok, we can unload driver */
/* At first we should stop all channels */
for (c = b->chan; c < b->chan + NCHAN; ++c) {
drv_t *d = (drv_t*) c->sys;
if (! d || ! d->chan->type)
continue;
cp_stop_chan (c);
cp_stop_e1 (c);
cp_set_dtr (d->chan, 0);
cp_set_rts (d->chan, 0);
}
/* Reset the adapter. */
cp_destroy = 1;
cp_interrupt_poll (b, 1);
cp_led_off (b);
cp_reset (b, 0 ,0);
callout_stop (&led_timo[b->num]);
/* Disable the interrupt request. */
bus_teardown_intr (dev, bd->cp_irq, bd->cp_intrhand);
for (c=b->chan; c<b->chan+NCHAN; ++c) {
drv_t *d = (drv_t*) c->sys;
if (! d || ! d->chan->type)
continue;
callout_stop (&d->timeout_handle);
#ifndef NETGRAPH
/* Detach from the packet filter list of interfaces. */
bpfdetach (d->ifp);
/* Detach from the sync PPP list. */
sppp_detach (d->ifp);
/* Detach from the system list of interfaces. */
if_detach (d->ifp);
if_free (d->ifp);
IF_DRAIN (&d->queue);
mtx_destroy (&d->queue.ifq_mtx);
#else
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);
#endif
destroy_dev (d->devt);
}
b->sys = NULL;
CP_UNLOCK (bd);
bus_release_resource (dev, SYS_RES_IRQ, 0, bd->cp_irq);
bus_release_resource (dev, SYS_RES_MEMORY, PCIR_BAR(0), bd->cp_res);
CP_LOCK (bd);
cp_led_off (b);
CP_UNLOCK (bd);
callout_drain (&led_timo[b->num]);
splx (s);
for (c = b->chan; c < b->chan + NCHAN; ++c) {
drv_t *d = (drv_t*) c->sys;
if (! d || ! d->chan->type)
continue;
callout_drain (&d->timeout_handle);
channel [b->num*NCHAN + c->num] = 0;
/* Deallocate buffers. */
cp_bus_dma_mem_free (&d->dmamem);
}
adapter [b->num] = 0;
cp_bus_dma_mem_free (&bd->dmamem);
free (b, M_DEVBUF);
mtx_destroy (&bd->cp_mtx);
return 0;
}
#ifndef NETGRAPH
static void cp_ifstart (struct ifnet *ifp)
{
drv_t *d = ifp->if_softc;
bdrv_t *bd = d->board->sys;
CP_LOCK (bd);
cp_start (d);
CP_UNLOCK (bd);
}
static void cp_tlf (struct sppp *sp)
{
drv_t *d = SP2IFP(sp)->if_softc;
CP_DEBUG2 (d, ("cp_tlf\n"));
/* XXXRIK: Don't forget to protect them by LOCK, or kill them. */
/* cp_set_dtr (d->chan, 0);*/
/* cp_set_rts (d->chan, 0);*/
if (!(sp->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO))
sp->pp_down (sp);
}
static void cp_tls (struct sppp *sp)
{
drv_t *d = SP2IFP(sp)->if_softc;
CP_DEBUG2 (d, ("cp_tls\n"));
if (!(sp->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO))
sp->pp_up (sp);
}
/*
* Process an ioctl request.
*/
static int cp_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data)
{
drv_t *d = ifp->if_softc;
bdrv_t *bd = d->board->sys;
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
d->chan->debug = d->chan->debug_shadow;
switch (cmd) {
default: CP_DEBUG2 (d, ("ioctl 0x%lx\n", cmd)); return 0;
case SIOCADDMULTI: CP_DEBUG2 (d, ("ioctl SIOCADDMULTI\n")); return 0;
case SIOCDELMULTI: CP_DEBUG2 (d, ("ioctl SIOCDELMULTI\n")); return 0;
case SIOCSIFFLAGS: CP_DEBUG2 (d, ("ioctl SIOCSIFFLAGS\n")); break;
case SIOCSIFADDR: CP_DEBUG2 (d, ("ioctl SIOCSIFADDR\n")); break;
}
/* We get here only in case of SIFFLAGS or SIFADDR. */
s = splimp ();
CP_LOCK (bd);
should_be_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
if (! was_up && should_be_up) {
/* Interface goes up -- start it. */
cp_up (d);
cp_start (d);
} else if (was_up && ! should_be_up) {
/* Interface is going down -- stop it. */
/* if ((IFP2SP(ifp)->pp_flags & PP_FR) || (ifp->if_flags & PP_CISCO))*/
cp_down (d);
}
CP_DEBUG (d, ("ioctl 0x%lx p4\n", cmd));
CP_UNLOCK (bd);
splx (s);
return 0;
}
/*
* Initialization of interface.
* It seems to be never called by upper level?
*/
static void cp_initialize (void *softc)
{
drv_t *d = softc;
CP_DEBUG (d, ("cp_initialize\n"));
}
#endif /*NETGRAPH*/
/*
* Stop the interface. Called on splimp().
*/
static void cp_down (drv_t *d)
{
CP_DEBUG (d, ("cp_down\n"));
/* Interface is going down -- stop it. */
cp_set_dtr (d->chan, 0);
cp_set_rts (d->chan, 0);
d->running = 0;
callout_stop (&d->timeout_handle);
}
/*
* Start the interface. Called on splimp().
*/
static void cp_up (drv_t *d)
{
CP_DEBUG (d, ("cp_up\n"));
cp_set_dtr (d->chan, 1);
cp_set_rts (d->chan, 1);
d->running = 1;
}
/*
* Start output on the interface. Get another datagram to send
* off of the interface queue, and copy it to the interface
* before starting the output.
*/
static void cp_send (drv_t *d)
{
struct mbuf *m;
u_short len;
CP_DEBUG2 (d, ("cp_send, tn=%d te=%d\n", d->chan->tn, d->chan->te));
/* No output if the interface is down. */
if (! d->running)
return;
/* No output if the modem is off. */
if (! (d->chan->lloop || d->chan->type != T_SERIAL ||
cp_get_dsr (d->chan)))
return;
while (cp_transmit_space (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 (len >= BUFSZ)
printf ("%s: too long packet: %d bytes: ",
d->name, len);
else if (! m->m_next)
cp_send_packet (d->chan, (u_char*) mtod (m, caddr_t), len, 0);
else {
u_char *buf = d->chan->tbuf[d->chan->te];
m_copydata (m, 0, len, buf);
cp_send_packet (d->chan, buf, len, 0);
}
m_freem (m);
/* Set up transmit timeout, if the transmit ring is not empty.*/
d->timeout = 10;
}
#ifndef NETGRAPH
d->ifp->if_drv_flags |= IFF_DRV_OACTIVE;
#endif
}
/*
* Start output on the interface.
* Always called on splimp().
*/
static void cp_start (drv_t *d)
{
if (d->running) {
if (! d->chan->dtr)
cp_set_dtr (d->chan, 1);
if (! d->chan->rts)
cp_set_rts (d->chan, 1);
cp_send (d);
callout_reset (&d->timeout_handle, hz, cp_watchdog_timer, d);
}
}
/*
* Handle transmit timeouts.
* Recover after lost transmit interrupts.
* Always called on splimp().
*/
static void cp_watchdog (drv_t *d)
{
CP_DEBUG (d, ("device timeout\n"));
if (d->running) {
cp_stop_chan (d->chan);
cp_stop_e1 (d->chan);
cp_start_e1 (d->chan);
cp_start_chan (d->chan, 1, 1, 0, 0);
cp_set_dtr (d->chan, 1);
cp_set_rts (d->chan, 1);
cp_start (d);
}
}
static void cp_watchdog_timer (void *arg)
{
drv_t *d = arg;
bdrv_t *bd = d->board->sys;
CP_LOCK (bd);
if (d->timeout == 1)
cp_watchdog (d);
if (d->timeout)
d->timeout--;
callout_reset (&d->timeout_handle, hz, cp_watchdog_timer, d);
CP_UNLOCK (bd);
}
static void cp_transmit (cp_chan_t *c, void *attachment, int len)
{
drv_t *d = c->sys;
d->timeout = 0;
#ifndef NETGRAPH
++d->ifp->if_opackets;
d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
#endif
cp_start (d);
}
static void cp_receive (cp_chan_t *c, unsigned char *data, int len)
{
drv_t *d = c->sys;
struct mbuf *m;
#ifdef NETGRAPH
int error;
#endif
if (! d->running)
return;
m = makembuf (data, len);
if (! m) {
CP_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
}
static void cp_error (cp_chan_t *c, int data)
{
drv_t *d = c->sys;
switch (data) {
case CP_FRAME:
CP_DEBUG (d, ("frame error\n"));
#ifndef NETGRAPH
++d->ifp->if_ierrors;
#endif
break;
case CP_CRC:
CP_DEBUG (d, ("crc error\n"));
#ifndef NETGRAPH
++d->ifp->if_ierrors;
#endif
break;
case CP_OVERRUN:
CP_DEBUG (d, ("overrun error\n"));
#ifndef NETGRAPH
++d->ifp->if_collisions;
++d->ifp->if_ierrors;
#endif
break;
case CP_OVERFLOW:
CP_DEBUG (d, ("overflow error\n"));
#ifndef NETGRAPH
++d->ifp->if_ierrors;
#endif
break;
case CP_UNDERRUN:
CP_DEBUG (d, ("underrun error\n"));
d->timeout = 0;
#ifndef NETGRAPH
++d->ifp->if_oerrors;
d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
#endif
cp_start (d);
break;
default:
CP_DEBUG (d, ("error #%d\n", data));
break;
}
}
/*
* You also need read, write, open, close routines.
* This should get you started
*/
static int cp_open (struct cdev *dev, int oflags, int devtype, struct thread *td)
{
int unit = dev2unit (dev);
drv_t *d;
if (unit >= NBRD*NCHAN || ! (d = channel[unit]))
return ENXIO;
CP_DEBUG2 (d, ("cp_open\n"));
return 0;
}
/*
* Only called on the LAST close.
*/
static int cp_close (struct cdev *dev, int fflag, int devtype, struct thread *td)
{
drv_t *d = channel [dev2unit (dev)];
CP_DEBUG2 (d, ("cp_close\n"));
return 0;
}
static int cp_modem_status (cp_chan_t *c)
{
drv_t *d = c->sys;
bdrv_t *bd = d->board->sys;
int status, s;
status = d->running ? TIOCM_LE : 0;
s = splimp ();
CP_LOCK (bd);
if (cp_get_cd (c)) status |= TIOCM_CD;
if (cp_get_cts (c)) status |= TIOCM_CTS;
if (cp_get_dsr (c)) status |= TIOCM_DSR;
if (c->dtr) status |= TIOCM_DTR;
if (c->rts) status |= TIOCM_RTS;
CP_UNLOCK (bd);
splx (s);
return status;
}
static int cp_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
{
drv_t *d = channel [dev2unit (dev)];
bdrv_t *bd = d->board->sys;
cp_chan_t *c = d->chan;
struct serial_statistics *st;
struct e1_statistics *opte1;
struct e3_statistics *opte3;
int error, s;
char mask[16];
switch (cmd) {
case SERIAL_GETREGISTERED:
CP_DEBUG2 (d, ("ioctl: getregistered\n"));
bzero (mask, sizeof(mask));
for (s=0; s<NBRD*NCHAN; ++s)
if (channel [s])
mask [s/8] |= 1 << (s & 7);
bcopy (mask, data, sizeof (mask));
return 0;
#ifndef NETGRAPH
case SERIAL_GETPROTO:
CP_DEBUG2 (d, ("ioctl: getproto\n"));
strcpy ((char*)data, (IFP2SP(d->ifp)->pp_flags & PP_FR) ? "fr" :
(d->ifp->if_flags & PP_CISCO) ? "cisco" : "ppp");
return 0;
case SERIAL_SETPROTO:
CP_DEBUG2 (d, ("ioctl: setproto\n"));
/* 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;
#if PP_FR != 0
} else if (! strcmp ("fr", (char*)data)) {
d->ifp->if_flags &= ~(PP_CISCO);
IFP2SP(d->ifp)->pp_flags |= PP_FR | PP_KEEPALIVE;
#endif
} else if (! strcmp ("ppp", (char*)data)) {
IFP2SP(d->ifp)->pp_flags &= ~PP_FR;
IFP2SP(d->ifp)->pp_flags &= ~PP_KEEPALIVE;
d->ifp->if_flags &= ~(PP_CISCO);
} else
return EINVAL;
return 0;
case SERIAL_GETKEEPALIVE:
CP_DEBUG2 (d, ("ioctl: getkeepalive\n"));
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:
CP_DEBUG2 (d, ("ioctl: setkeepalive\n"));
/* 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;
s = splimp ();
CP_LOCK (bd);
if (*(int*)data)
IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
else
IFP2SP(d->ifp)->pp_flags &= ~PP_KEEPALIVE;
CP_UNLOCK (bd);
splx (s);
return 0;
#endif /*NETGRAPH*/
case SERIAL_GETMODE:
CP_DEBUG2 (d, ("ioctl: getmode\n"));
*(int*)data = SERIAL_HDLC;
return 0;
case SERIAL_SETMODE:
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (*(int*)data != SERIAL_HDLC)
return EINVAL;
return 0;
case SERIAL_GETCFG:
CP_DEBUG2 (d, ("ioctl: getcfg\n"));
if (c->type != T_E1 || c->unfram)
return EINVAL;
*(char*)data = c->board->mux ? 'c' : 'a';
return 0;
case SERIAL_SETCFG:
CP_DEBUG2 (d, ("ioctl: setcfg\n"));
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (c->type != T_E1)
return EINVAL;
s = splimp ();
CP_LOCK (bd);
cp_set_mux (c->board, *((char*)data) == 'c');
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETSTAT:
CP_DEBUG2 (d, ("ioctl: getstat\n"));
st = (struct serial_statistics*) data;
st->rintr = c->rintr;
st->tintr = c->tintr;
st->mintr = 0;
st->ibytes = c->ibytes;
st->ipkts = c->ipkts;
st->obytes = c->obytes;
st->opkts = c->opkts;
st->ierrs = c->overrun + c->frame + c->crc;
st->oerrs = c->underrun;
return 0;
case SERIAL_GETESTAT:
CP_DEBUG2 (d, ("ioctl: getestat\n"));
if (c->type != T_E1 && c->type != T_G703)
return EINVAL;
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_GETE3STAT:
CP_DEBUG2 (d, ("ioctl: gete3stat\n"));
if (c->type != T_E3 && c->type != T_T3 && c->type != T_STS1)
return EINVAL;
opte3 = (struct e3_statistics*) data;
opte3->status = c->e3status;
opte3->cursec = (c->e3csec_5 * 2 + 1) / 10;
opte3->totsec = c->e3tsec + opte3->cursec;
opte3->ccv = c->e3ccv;
opte3->tcv = c->e3tcv + opte3->ccv;
for (s = 0; s < 48; ++s) {
opte3->icv[s] = c->e3icv[s];
}
return 0;
case SERIAL_CLRSTAT:
CP_DEBUG2 (d, ("ioctl: clrstat\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
c->rintr = 0;
c->tintr = 0;
c->ibytes = 0;
c->obytes = 0;
c->ipkts = 0;
c->opkts = 0;
c->overrun = 0;
c->frame = 0;
c->crc = 0;
c->underrun = 0;
bzero (&c->currnt, sizeof (c->currnt));
bzero (&c->total, sizeof (c->total));
bzero (c->interval, sizeof (c->interval));
c->e3ccv = 0;
c->e3tcv = 0;
bzero (c->e3icv, sizeof (c->e3icv));
return 0;
case SERIAL_GETBAUD:
CP_DEBUG2 (d, ("ioctl: getbaud\n"));
*(long*)data = c->baud;
return 0;
case SERIAL_SETBAUD:
CP_DEBUG2 (d, ("ioctl: setbaud\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
s = splimp ();
CP_LOCK (bd);
cp_set_baud (c, *(long*)data);
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETLOOP:
CP_DEBUG2 (d, ("ioctl: getloop\n"));
*(int*)data = c->lloop;
return 0;
case SERIAL_SETLOOP:
CP_DEBUG2 (d, ("ioctl: setloop\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
s = splimp ();
CP_LOCK (bd);
cp_set_lloop (c, *(int*)data);
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETDPLL:
CP_DEBUG2 (d, ("ioctl: getdpll\n"));
if (c->type != T_SERIAL)
return EINVAL;
*(int*)data = c->dpll;
return 0;
case SERIAL_SETDPLL:
CP_DEBUG2 (d, ("ioctl: setdpll\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (c->type != T_SERIAL)
return EINVAL;
s = splimp ();
CP_LOCK (bd);
cp_set_dpll (c, *(int*)data);
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETNRZI:
CP_DEBUG2 (d, ("ioctl: getnrzi\n"));
if (c->type != T_SERIAL)
return EINVAL;
*(int*)data = c->nrzi;
return 0;
case SERIAL_SETNRZI:
CP_DEBUG2 (d, ("ioctl: setnrzi\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (c->type != T_SERIAL)
return EINVAL;
s = splimp ();
CP_LOCK (bd);
cp_set_nrzi (c, *(int*)data);
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETDEBUG:
CP_DEBUG2 (d, ("ioctl: getdebug\n"));
*(int*)data = d->chan->debug;
return 0;
case SERIAL_SETDEBUG:
CP_DEBUG2 (d, ("ioctl: setdebug\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
#ifndef NETGRAPH
/*
* The debug_shadow is always greater than zero for logic
* simplicity. For switching debug off the IFF_DEBUG is
* responsible.
*/
d->chan->debug_shadow = (*(int*)data) ? (*(int*)data) : 1;
if (d->ifp->if_flags & IFF_DEBUG)
d->chan->debug = d->chan->debug_shadow;
#else
d->chan->debug = *(int*)data;
#endif
return 0;
case SERIAL_GETHIGAIN:
CP_DEBUG2 (d, ("ioctl: gethigain\n"));
if (c->type != T_E1)
return EINVAL;
*(int*)data = c->higain;
return 0;
case SERIAL_SETHIGAIN:
CP_DEBUG2 (d, ("ioctl: sethigain\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (c->type != T_E1)
return EINVAL;
s = splimp ();
CP_LOCK (bd);
cp_set_higain (c, *(int*)data);
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETPHONY:
CP_DEBUG2 (d, ("ioctl: getphony\n"));
if (c->type != T_E1)
return EINVAL;
*(int*)data = c->phony;
return 0;
case SERIAL_SETPHONY:
CP_DEBUG2 (d, ("ioctl: setphony\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (c->type != T_E1)
return EINVAL;
s = splimp ();
CP_LOCK (bd);
cp_set_phony (c, *(int*)data);
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETUNFRAM:
CP_DEBUG2 (d, ("ioctl: getunfram\n"));
if (c->type != T_E1)
return EINVAL;
*(int*)data = c->unfram;
return 0;
case SERIAL_SETUNFRAM:
CP_DEBUG2 (d, ("ioctl: setunfram\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (c->type != T_E1)
return EINVAL;
s = splimp ();
CP_LOCK (bd);
cp_set_unfram (c, *(int*)data);
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETSCRAMBLER:
CP_DEBUG2 (d, ("ioctl: getscrambler\n"));
if (c->type != T_G703 && !c->unfram)
return EINVAL;
*(int*)data = c->scrambler;
return 0;
case SERIAL_SETSCRAMBLER:
CP_DEBUG2 (d, ("ioctl: setscrambler\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (c->type != T_G703 && !c->unfram)
return EINVAL;
s = splimp ();
CP_LOCK (bd);
cp_set_scrambler (c, *(int*)data);
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETMONITOR:
CP_DEBUG2 (d, ("ioctl: getmonitor\n"));
if (c->type != T_E1 &&
c->type != T_E3 &&
c->type != T_T3 &&
c->type != T_STS1)
return EINVAL;
*(int*)data = c->monitor;
return 0;
case SERIAL_SETMONITOR:
CP_DEBUG2 (d, ("ioctl: setmonitor\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (c->type != T_E1)
return EINVAL;
s = splimp ();
CP_LOCK (bd);
cp_set_monitor (c, *(int*)data);
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETUSE16:
CP_DEBUG2 (d, ("ioctl: getuse16\n"));
if (c->type != T_E1 || c->unfram)
return EINVAL;
*(int*)data = c->use16;
return 0;
case SERIAL_SETUSE16:
CP_DEBUG2 (d, ("ioctl: setuse16\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (c->type != T_E1)
return EINVAL;
s = splimp ();
CP_LOCK (bd);
cp_set_use16 (c, *(int*)data);
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETCRC4:
CP_DEBUG2 (d, ("ioctl: getcrc4\n"));
if (c->type != T_E1 || c->unfram)
return EINVAL;
*(int*)data = c->crc4;
return 0;
case SERIAL_SETCRC4:
CP_DEBUG2 (d, ("ioctl: setcrc4\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (c->type != T_E1)
return EINVAL;
s = splimp ();
CP_LOCK (bd);
cp_set_crc4 (c, *(int*)data);
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETCLK:
CP_DEBUG2 (d, ("ioctl: getclk\n"));
if (c->type != T_E1 &&
c->type != T_G703 &&
c->type != T_E3 &&
c->type != T_T3 &&
c->type != T_STS1)
return EINVAL;
switch (c->gsyn) {
default: *(int*)data = E1CLK_INTERNAL; break;
case GSYN_RCV: *(int*)data = E1CLK_RECEIVE; break;
case GSYN_RCV0: *(int*)data = E1CLK_RECEIVE_CHAN0; break;
case GSYN_RCV1: *(int*)data = E1CLK_RECEIVE_CHAN1; break;
case GSYN_RCV2: *(int*)data = E1CLK_RECEIVE_CHAN2; break;
case GSYN_RCV3: *(int*)data = E1CLK_RECEIVE_CHAN3; break;
}
return 0;
case SERIAL_SETCLK:
CP_DEBUG2 (d, ("ioctl: setclk\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (c->type != T_E1 &&
c->type != T_G703 &&
c->type != T_E3 &&
c->type != T_T3 &&
c->type != T_STS1)
return EINVAL;
s = splimp ();
CP_LOCK (bd);
switch (*(int*)data) {
default: cp_set_gsyn (c, GSYN_INT); break;
case E1CLK_RECEIVE: cp_set_gsyn (c, GSYN_RCV); break;
case E1CLK_RECEIVE_CHAN0: cp_set_gsyn (c, GSYN_RCV0); break;
case E1CLK_RECEIVE_CHAN1: cp_set_gsyn (c, GSYN_RCV1); break;
case E1CLK_RECEIVE_CHAN2: cp_set_gsyn (c, GSYN_RCV2); break;
case E1CLK_RECEIVE_CHAN3: cp_set_gsyn (c, GSYN_RCV3); break;
}
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETTIMESLOTS:
CP_DEBUG2 (d, ("ioctl: gettimeslots\n"));
if ((c->type != T_E1 || c->unfram) && c->type != T_DATA)
return EINVAL;
*(u_long*)data = c->ts;
return 0;
case SERIAL_SETTIMESLOTS:
CP_DEBUG2 (d, ("ioctl: settimeslots\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if ((c->type != T_E1 || c->unfram) && c->type != T_DATA)
return EINVAL;
s = splimp ();
CP_LOCK (bd);
cp_set_ts (c, *(u_long*)data);
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETINVCLK:
CP_DEBUG2 (d, ("ioctl: getinvclk\n"));
#if 1
return EINVAL;
#else
if (c->type != T_SERIAL)
return EINVAL;
*(int*)data = c->invtxc;
return 0;
#endif
case SERIAL_SETINVCLK:
CP_DEBUG2 (d, ("ioctl: setinvclk\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (c->type != T_SERIAL)
return EINVAL;
s = splimp ();
CP_LOCK (bd);
cp_set_invtxc (c, *(int*)data);
cp_set_invrxc (c, *(int*)data);
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETINVTCLK:
CP_DEBUG2 (d, ("ioctl: getinvtclk\n"));
if (c->type != T_SERIAL)
return EINVAL;
*(int*)data = c->invtxc;
return 0;
case SERIAL_SETINVTCLK:
CP_DEBUG2 (d, ("ioctl: setinvtclk\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (c->type != T_SERIAL)
return EINVAL;
s = splimp ();
CP_LOCK (bd);
cp_set_invtxc (c, *(int*)data);
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETINVRCLK:
CP_DEBUG2 (d, ("ioctl: getinvrclk\n"));
if (c->type != T_SERIAL)
return EINVAL;
*(int*)data = c->invrxc;
return 0;
case SERIAL_SETINVRCLK:
CP_DEBUG2 (d, ("ioctl: setinvrclk\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
if (c->type != T_SERIAL)
return EINVAL;
s = splimp ();
CP_LOCK (bd);
cp_set_invrxc (c, *(int*)data);
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETLEVEL:
CP_DEBUG2 (d, ("ioctl: getlevel\n"));
if (c->type != T_G703)
return EINVAL;
s = splimp ();
CP_LOCK (bd);
*(int*)data = cp_get_lq (c);
CP_UNLOCK (bd);
splx (s);
return 0;
#if 0
case SERIAL_RESET:
CP_DEBUG2 (d, ("ioctl: reset\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
s = splimp ();
CP_LOCK (bd);
cp_reset (c->board, 0, 0);
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_HARDRESET:
CP_DEBUG2 (d, ("ioctl: hardreset\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
s = splimp ();
CP_LOCK (bd);
/* hard_reset (c->board); */
CP_UNLOCK (bd);
splx (s);
return 0;
#endif
case SERIAL_GETCABLE:
CP_DEBUG2 (d, ("ioctl: getcable\n"));
if (c->type != T_SERIAL)
return EINVAL;
s = splimp ();
CP_LOCK (bd);
*(int*)data = cp_get_cable (c);
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETDIR:
CP_DEBUG2 (d, ("ioctl: getdir\n"));
if (c->type != T_E1 && c->type != T_DATA)
return EINVAL;
*(int*)data = c->dir;
return 0;
case SERIAL_SETDIR:
CP_DEBUG2 (d, ("ioctl: setdir\n"));
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
s = splimp ();
CP_LOCK (bd);
cp_set_dir (c, *(int*)data);
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETRLOOP:
CP_DEBUG2 (d, ("ioctl: getrloop\n"));
if (c->type != T_G703 &&
c->type != T_E3 &&
c->type != T_T3 &&
c->type != T_STS1)
return EINVAL;
*(int*)data = cp_get_rloop (c);
return 0;
case SERIAL_SETRLOOP:
CP_DEBUG2 (d, ("ioctl: setloop\n"));
if (c->type != T_E3 && c->type != T_T3 && c->type != T_STS1)
return EINVAL;
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
s = splimp ();
CP_LOCK (bd);
cp_set_rloop (c, *(int*)data);
CP_UNLOCK (bd);
splx (s);
return 0;
case SERIAL_GETCABLEN:
CP_DEBUG2 (d, ("ioctl: getcablen\n"));
if (c->type != T_T3 && c->type != T_STS1)
return EINVAL;
*(int*)data = c->cablen;
return 0;
case SERIAL_SETCABLEN:
CP_DEBUG2 (d, ("ioctl: setloop\n"));
if (c->type != T_T3 && c->type != T_STS1)
return EINVAL;
/* Only for superuser! */
error = priv_check (td, PRIV_DRIVER);
if (error)
return error;
s = splimp ();
CP_LOCK (bd);
cp_set_cablen (c, *(int*)data);
CP_UNLOCK (bd);
splx (s);
return 0;
case TIOCSDTR: /* Set DTR */
s = splimp ();
CP_LOCK (bd);
cp_set_dtr (c, 1);
CP_UNLOCK (bd);
splx (s);
return 0;
case TIOCCDTR: /* Clear DTR */
s = splimp ();
CP_LOCK (bd);
cp_set_dtr (c, 0);
CP_UNLOCK (bd);
splx (s);
return 0;
case TIOCMSET: /* Set DTR/RTS */
s = splimp ();
CP_LOCK (bd);
cp_set_dtr (c, (*(int*)data & TIOCM_DTR) ? 1 : 0);
cp_set_rts (c, (*(int*)data & TIOCM_RTS) ? 1 : 0);
CP_UNLOCK (bd);
splx (s);
return 0;
case TIOCMBIS: /* Add DTR/RTS */
s = splimp ();
CP_LOCK (bd);
if (*(int*)data & TIOCM_DTR) cp_set_dtr (c, 1);
if (*(int*)data & TIOCM_RTS) cp_set_rts (c, 1);
CP_UNLOCK (bd);
splx (s);
return 0;
case TIOCMBIC: /* Clear DTR/RTS */
s = splimp ();
CP_LOCK (bd);
if (*(int*)data & TIOCM_DTR) cp_set_dtr (c, 0);
if (*(int*)data & TIOCM_RTS) cp_set_rts (c, 0);
CP_UNLOCK (bd);
splx (s);
return 0;
case TIOCMGET: /* Get modem status */
*(int*)data = cp_modem_status (c);
return 0;
}
return ENOTTY;
}
#ifdef NETGRAPH
static int ng_cp_constructor (node_p node)
{
drv_t *d = NG_NODE_PRIVATE (node);
CP_DEBUG (d, ("Constructor\n"));
return EINVAL;
}
static int ng_cp_newhook (node_p node, hook_p hook, const char *name)
{
int s;
drv_t *d = NG_NODE_PRIVATE (node);
bdrv_t *bd = d->board->sys;
CP_DEBUG (d, ("Newhook\n"));
/* Attach debug hook */
if (strcmp (name, NG_CP_HOOK_DEBUG) == 0) {
NG_HOOK_SET_PRIVATE (hook, NULL);
d->debug_hook = hook;
return 0;
}
/* Check for raw hook */
if (strcmp (name, NG_CP_HOOK_RAW) != 0)
return EINVAL;
NG_HOOK_SET_PRIVATE (hook, d);
d->hook = hook;
s = splimp ();
CP_LOCK (bd);
cp_up (d);
CP_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, cp_chan_t *c, int need_header)
{
int status = cp_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, cp_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 %8lu %7ld %7ld %8lu %7ld %7ld\n",
c->rintr, c->tintr, 0l, (unsigned long) c->ibytes,
c->ipkts, c->overrun + c->frame + c->crc,
(unsigned long) c->obytes, c->opkts, c->underrun);
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, cp_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, cp_chan_t *c)
{
drv_t *d = c->sys;
bdrv_t *bd = d->board->sys;
int length = 0;
length += sprintf (s + length, "cp%d", c->board->num * NCHAN + c->num);
if (d->chan->debug)
length += sprintf (s + length, " debug=%d", d->chan->debug);
if (c->board->mux) {
length += sprintf (s + length, " cfg=C");
} else {
length += sprintf (s + length, " cfg=A");
}
if (c->baud)
length += sprintf (s + length, " %ld", c->baud);
else
length += sprintf (s + length, " extclock");
if (c->type == T_E1 || c->type == T_G703)
switch (c->gsyn) {
case GSYN_INT : length += sprintf (s + length, " syn=int"); break;
case GSYN_RCV : length += sprintf (s + length, " syn=rcv"); break;
case GSYN_RCV0 : length += sprintf (s + length, " syn=rcv0"); break;
case GSYN_RCV1 : length += sprintf (s + length, " syn=rcv1"); break;
case GSYN_RCV2 : length += sprintf (s + length, " syn=rcv2"); break;
case GSYN_RCV3 : length += sprintf (s + length, " syn=rcv3"); break;
}
if (c->type == T_SERIAL) {
length += sprintf (s + length, " dpll=%s", c->dpll ? "on" : "off");
length += sprintf (s + length, " nrzi=%s", c->nrzi ? "on" : "off");
length += sprintf (s + length, " invclk=%s", c->invtxc ? "on" : "off");
}
if (c->type == T_E1)
length += sprintf (s + length, " higain=%s", c->higain ? "on" : "off");
length += sprintf (s + length, " loop=%s", c->lloop ? "on" : "off");
if (c->type == T_E1)
length += sprintf (s + length, " ts=%s", format_timeslots (c->ts));
if (c->type == T_G703) {
int lq, x;
x = splimp ();
CP_LOCK (bd);
lq = cp_get_lq (c);
CP_UNLOCK (bd);
splx (x);
length += sprintf (s + length, " (level=-%.1fdB)", lq / 10.0);
}
length += sprintf (s + length, "\n");
return length;
}
static int ng_cp_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;
CP_DEBUG (d, ("Rcvmsg\n"));
NGI_GET_MSG (item, msg);
switch (msg->header.typecookie) {
default:
error = EINVAL;
break;
case NGM_CP_COOKIE:
printf ("Not implemented yet\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;
if (d) {
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);
} else
l += sprintf (s + l, "Error: node not connect to channel");
strncpy ((resp)->header.cmdstr, "status", NG_CMDSTRSIZ);
}
break;
}
break;
}
NG_RESPOND_MSG (error, node, item, resp);
NG_FREE_MSG (msg);
return error;
}
static int ng_cp_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 = d->board->sys;
struct ifqueue *q;
int s;
CP_DEBUG2 (d, ("Rcvdata\n"));
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 ();
CP_LOCK (bd);
IF_LOCK (q);
if (_IF_QFULL (q)) {
_IF_DROP (q);
IF_UNLOCK (q);
CP_UNLOCK (bd);
splx (s);
NG_FREE_M (m);
return ENOBUFS;
}
_IF_ENQUEUE (q, m);
IF_UNLOCK (q);
cp_start (d);
CP_UNLOCK (bd);
splx (s);
return 0;
}
static int ng_cp_rmnode (node_p node)
{
drv_t *d = NG_NODE_PRIVATE (node);
CP_DEBUG (d, ("Rmnode\n"));
if (d && d->running) {
bdrv_t *bd = d->board->sys;
int s = splimp ();
CP_LOCK (bd);
cp_down (d);
CP_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 int ng_cp_connect (hook_p hook)
{
drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
if (d) {
CP_DEBUG (d, ("Connect\n"));
callout_reset (&d->timeout_handle, hz, cp_watchdog_timer, d);
}
return 0;
}
static int ng_cp_disconnect (hook_p hook)
{
drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
if (d) {
CP_DEBUG (d, ("Disconnect\n"));
if (NG_HOOK_PRIVATE (hook))
{
bdrv_t *bd = d->board->sys;
int s = splimp ();
CP_LOCK (bd);
cp_down (d);
CP_UNLOCK (bd);
splx (s);
}
/* 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 cp_modevent (module_t mod, int type, void *unused)
{
static int load_count = 0;
switch (type) {
case MOD_LOAD:
#ifdef NETGRAPH
if (ng_newtype (&typestruct))
printf ("Failed to register ng_cp\n");
#endif
++load_count;
callout_init (&timeout_handle, CALLOUT_MPSAFE);
callout_reset (&timeout_handle, hz*5, cp_timeout, 0);
break;
case MOD_UNLOAD:
if (load_count == 1) {
printf ("Removing device entry for Tau-PCI\n");
#ifdef NETGRAPH
ng_rmtype (&typestruct);
#endif
}
/* If we were wait it than it reasserted now, just stop it.
* Actually we shouldn't get this condition. But code could be
* changed in the future, so just be a litle paranoid.
*/
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_CP_NODE_TYPE,
.constructor = ng_cp_constructor,
.rcvmsg = ng_cp_rcvmsg,
.shutdown = ng_cp_rmnode,
.newhook = ng_cp_newhook,
.connect = ng_cp_connect,
.rcvdata = ng_cp_rcvdata,
.disconnect = ng_cp_disconnect,
};
#endif /*NETGRAPH*/
#ifdef NETGRAPH
MODULE_DEPEND (ng_cp, netgraph, NG_ABI_VERSION, NG_ABI_VERSION, NG_ABI_VERSION);
#else
MODULE_DEPEND (cp, sppp, 1, 1, 1);
#endif
DRIVER_MODULE (cp, pci, cp_driver, cp_devclass, cp_modevent, NULL);
MODULE_VERSION (cp, 1);