d/freebsd-nq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
cebf38db46
freebsd-nq/sys/i4b/layer4/i4b_i4bdrv.c
Julian Elischer b40ce4165d KSE Milestone 2 
Note ALL MODULES MUST BE RECOMPILED
make the kernel aware that there are smaller units of scheduling than the
process. (but only allow one thread per process at this time).
This is functionally equivalent to teh previousl -current except
that there is a thread associated with each process.

Sorry john! (your next MFC will be a doosie!)

Reviewed by: peter@freebsd.org, dillon@freebsd.org

X-MFC after:    ha ha ha ha
2001-09-12 08:38:13 +00:00

1070 lines
23 KiB
C
Raw Blame History

/*
* Copyright (c) 1997, 2001 Hellmuth Michaelis. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*---------------------------------------------------------------------------
*
* i4b_i4bdrv.c - i4b userland interface driver
* --------------------------------------------
*
* $FreeBSD$
*
* last edit-date: [Fri Jan 12 16:49:34 2001]
*
*---------------------------------------------------------------------------*/
#include "i4b.h"
#include "i4bipr.h"
#include "i4btel.h"
#if NI4B > 1
#error "only 1 (one) i4b device possible!"
#endif
#if NI4B > 0
#include <sys/param.h>
#if defined(__FreeBSD__)
#include <sys/ioccom.h>
#include <sys/malloc.h>
#include <sys/uio.h>
#else
#include <sys/ioctl.h>
#endif
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
#if __FreeBSD_version >= 500014
#include <sys/selinfo.h>
#else
#include <sys/select.h>
#endif
#include <net/if.h>
#ifdef __NetBSD__
#include <sys/types.h>
#endif
#if defined(__FreeBSD__)
#include "i4bing.h"
#endif
#ifdef __bsdi__
#include "ibc.h"
#else
#ifdef __FreeBSD__
#include "i4bisppp.h"
#else
#include <net/if_sppp.h>
#endif
#endif
#ifdef __FreeBSD__
#if defined(__FreeBSD__) && __FreeBSD__ == 3
#include "opt_devfs.h"
#endif
#ifdef DEVFS
#include <sys/devfsext.h>
#endif
#endif /* __FreeBSD__*/
#ifdef __FreeBSD__
#include <machine/i4b_debug.h>
#include <machine/i4b_ioctl.h>
#include <machine/i4b_cause.h>
#else
#include <i4b/i4b_debug.h>
#include <i4b/i4b_ioctl.h>
#include <i4b/i4b_cause.h>
#endif
#include <i4b/include/i4b_l3l4.h>
#include <i4b/include/i4b_mbuf.h>
#include <i4b/include/i4b_global.h>
#include <i4b/layer4/i4b_l4.h>
#ifdef OS_USES_POLL
#include <sys/poll.h>
#endif
struct selinfo select_rd_info;
static struct ifqueue i4b_rdqueue;
static int openflag = 0;
static int selflag = 0;
static int readflag = 0;
#if defined(__FreeBSD__) && __FreeBSD__ == 3
#ifdef DEVFS
static void *devfs_token;
#endif
#endif
#ifndef __FreeBSD__
#define PDEVSTATIC /* - not static - */
PDEVSTATIC void i4battach __P((void));
PDEVSTATIC int i4bopen __P((dev_t dev, int flag, int fmt, struct thread *td));
PDEVSTATIC int i4bclose __P((dev_t dev, int flag, int fmt, struct thread *td));
PDEVSTATIC int i4bread __P((dev_t dev, struct uio *uio, int ioflag));
#ifdef __bsdi__
PDEVSTATIC int i4bioctl __P((dev_t dev, u_long cmd, caddr_t data, int flag, struct thread *td));
#else
PDEVSTATIC int i4bioctl __P((dev_t dev, int cmd, caddr_t data, int flag, struct thread *td));
#endif
#ifdef OS_USES_POLL
PDEVSTATIC int i4bpoll __P((dev_t dev, int events, struct thread *td));
#else
PDEVSTATIC int i4bselect __P((dev_t dev, int rw, struct thread *td));
#endif
#endif /* #ifndef __FreeBSD__ */
#if BSD > 199306 && defined(__FreeBSD__)
#define PDEVSTATIC static
PDEVSTATIC d_open_t i4bopen;
PDEVSTATIC d_close_t i4bclose;
PDEVSTATIC d_read_t i4bread;
PDEVSTATIC d_ioctl_t i4bioctl;
#ifdef OS_USES_POLL
PDEVSTATIC d_poll_t i4bpoll;
#define POLLFIELD i4bpoll
#else
PDEVSTATIC d_select_t i4bselect;
#define POLLFIELD i4bselect
#endif
#define CDEV_MAJOR 60
#if defined(__FreeBSD__) && __FreeBSD__ >= 4
static struct cdevsw i4b_cdevsw = {
/* open */ i4bopen,
/* close */ i4bclose,
/* read */ i4bread,
/* write */ nowrite,
/* ioctl */ i4bioctl,
/* poll */ POLLFIELD,
/* mmap */ nommap,
/* strategy */ nostrategy,
/* name */ "i4b",
/* maj */ CDEV_MAJOR,
/* dump */ nodump,
/* psize */ nopsize,
/* flags */ 0,
};
#else
static struct cdevsw i4b_cdevsw = {
i4bopen, i4bclose, i4bread, nowrite,
i4bioctl, nostop, nullreset, nodevtotty,
POLLFIELD, nommap, NULL, "i4b", NULL, -1
};
#endif
PDEVSTATIC void i4battach(void *);
PSEUDO_SET(i4battach, i4b_i4bdrv);
static void
i4b_drvinit(void *unused)
{
#if defined(__FreeBSD__) && __FreeBSD__ >= 4
cdevsw_add(&i4b_cdevsw);
#else
static int i4b_devsw_installed = 0;
dev_t dev;
if( ! i4b_devsw_installed )
{
dev = makedev(CDEV_MAJOR,0);
cdevsw_add(&dev,&i4b_cdevsw,NULL);
i4b_devsw_installed = 1;
}
#endif
}
SYSINIT(i4bdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,i4b_drvinit,NULL)
#endif /* BSD > 199306 && defined(__FreeBSD__) */
#ifdef __bsdi__
#include <sys/device.h>
int i4bmatch(struct device *parent, struct cfdata *cf, void *aux);
void dummy_i4battach(struct device*, struct device *, void *);
#define CDEV_MAJOR 65
static struct cfdriver i4bcd =
{ NULL, "i4b", i4bmatch, dummy_i4battach, DV_DULL,
sizeof(struct cfdriver) };
struct devsw i4bsw =
{ &i4bcd,
i4bopen, i4bclose, i4bread, nowrite,
i4bioctl, i4bselect, nommap, nostrat,
nodump, nopsize, 0, nostop
};
int
i4bmatch(struct device *parent, struct cfdata *cf, void *aux)
{
printf("i4bmatch: aux=0x%x\n", aux);
return 1;
}
void
dummy_i4battach(struct device *parent, struct device *self, void *aux)
{
printf("dummy_i4battach: aux=0x%x\n", aux);
}
#endif /* __bsdi__ */
/*---------------------------------------------------------------------------*
* interface attach routine
*---------------------------------------------------------------------------*/
PDEVSTATIC void
#ifdef __FreeBSD__
i4battach(void *dummy)
#else
i4battach()
#endif
{
printf("i4b: ISDN call control device attached\n");
i4b_rdqueue.ifq_maxlen = IFQ_MAXLEN;
#if defined(__FreeBSD__) && __FreeBSD__ > 4
mtx_init(&i4b_rdqueue.ifq_mtx, "i4b_rdqueue", MTX_DEF);
#endif
#if defined(__FreeBSD__)
make_dev(&i4b_cdevsw, 0, UID_ROOT, GID_WHEEL, 0600, "i4b");
#endif
}
/*---------------------------------------------------------------------------*
* i4bopen - device driver open routine
*---------------------------------------------------------------------------*/
PDEVSTATIC int
i4bopen(dev_t dev, int flag, int fmt, struct thread *td)
{
int x;
if(minor(dev))
return(ENXIO);
if(openflag)
return(EBUSY);
x = splimp();
openflag = 1;
i4b_l4_daemon_attached();
splx(x);
return(0);
}
/*---------------------------------------------------------------------------*
* i4bclose - device driver close routine
*---------------------------------------------------------------------------*/
PDEVSTATIC int
i4bclose(dev_t dev, int flag, int fmt, struct thread *td)
{
int x = splimp();
openflag = 0;
i4b_l4_daemon_detached();
i4b_Dcleanifq(&i4b_rdqueue);
splx(x);
return(0);
}
/*---------------------------------------------------------------------------*
* i4bread - device driver read routine
*---------------------------------------------------------------------------*/
PDEVSTATIC int
i4bread(dev_t dev, struct uio *uio, int ioflag)
{
struct mbuf *m;
int x;
int error = 0;
if(minor(dev))
return(ENODEV);
x = splimp();
IF_LOCK(&i4b_rdqueue);
while(IF_QEMPTY(&i4b_rdqueue))
{
readflag = 1;
#if defined (__FreeBSD__) && __FreeBSD__ > 4
error = msleep((caddr_t) &i4b_rdqueue, &i4b_rdqueue.ifq_mtx,
(PZERO + 1) | PCATCH, "bird", 0);
#else
error = tsleep((caddr_t) &i4b_rdqueue, (PZERO + 1) | PCATCH,
"bird", 0);
#endif
if (error != 0) {
IF_UNLOCK(&i4b_rdqueue);
splx(x);
return error;
}
}
_IF_DEQUEUE(&i4b_rdqueue, m);
IF_UNLOCK(&i4b_rdqueue);
splx(x);
if(m && m->m_len)
error = uiomove(m->m_data, m->m_len, uio);
else
error = EIO;
if(m)
i4b_Dfreembuf(m);
return(error);
}
/*---------------------------------------------------------------------------*
* i4bioctl - device driver ioctl routine
*---------------------------------------------------------------------------*/
PDEVSTATIC int
#if defined (__FreeBSD_version) && __FreeBSD_version >= 300003
i4bioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct thread *td)
#elif defined(__bsdi__)
i4bioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct thread *td)
#else
i4bioctl(dev_t dev, int cmd, caddr_t data, int flag, struct thread *td)
#endif
{
call_desc_t *cd;
int error = 0;
if(minor(dev))
return(ENODEV);
switch(cmd)
{
/* cdid request, reserve cd and return cdid */
case I4B_CDID_REQ:
{
msg_cdid_req_t *mir;
mir = (msg_cdid_req_t *)data;
cd = reserve_cd();
mir->cdid = cd->cdid;
break;
}
/* connect request, dial out to remote */
case I4B_CONNECT_REQ:
{
msg_connect_req_t *mcr;
mcr = (msg_connect_req_t *)data; /* setup ptr */
if((cd = cd_by_cdid(mcr->cdid)) == NULL)/* get cd */
{
NDBGL4(L4_ERR, "I4B_CONNECT_REQ ioctl, cdid not found!");
error = EINVAL;
break;
}
/* prevent dialling on leased lines */
if(ctrl_desc[mcr->controller].protocol == PROTOCOL_D64S)
{
SET_CAUSE_TYPE(cd->cause_in, CAUSET_I4B);
SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_LLDIAL);
i4b_l4_disconnect_ind(cd);
freecd_by_cd(cd);
break;
}
cd->controller = mcr->controller; /* fill cd */
cd->bprot = mcr->bprot;
cd->driver = mcr->driver;
cd->driver_unit = mcr->driver_unit;
cd->cr = get_rand_cr(ctrl_desc[cd->controller].unit);
cd->shorthold_data.shorthold_algorithm = mcr->shorthold_data.shorthold_algorithm;
cd->shorthold_data.unitlen_time = mcr->shorthold_data.unitlen_time;
cd->shorthold_data.idle_time = mcr->shorthold_data.idle_time;
cd->shorthold_data.earlyhup_time = mcr->shorthold_data.earlyhup_time;
cd->last_aocd_time = 0;
if(mcr->unitlen_method == ULEN_METHOD_DYNAMIC)
cd->aocd_flag = 1;
else
cd->aocd_flag = 0;
cd->cunits = 0;
cd->max_idle_time = 0; /* this is outgoing */
cd->dir = DIR_OUTGOING;
NDBGL4(L4_TIMO, "I4B_CONNECT_REQ times, algorithm=%ld unitlen=%ld idle=%ld earlyhup=%ld",
(long)cd->shorthold_data.shorthold_algorithm, (long)cd->shorthold_data.unitlen_time,
(long)cd->shorthold_data.idle_time, (long)cd->shorthold_data.earlyhup_time);
strcpy(cd->dst_telno, mcr->dst_telno);
strcpy(cd->src_telno, mcr->src_telno);
cd->display[0] = '\0';
SET_CAUSE_TYPE(cd->cause_in, CAUSET_I4B);
SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NORMAL);
switch(mcr->channel)
{
case CHAN_B1:
case CHAN_B2:
if(ctrl_desc[mcr->controller].bch_state[mcr->channel] != BCH_ST_FREE)
SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
break;
case CHAN_ANY:
{
int i;
for (i = 0;
i < ctrl_desc[mcr->controller].nbch &&
ctrl_desc[mcr->controller].bch_state[i] != BCH_ST_FREE;
i++);
if (i == ctrl_desc[mcr->controller].nbch)
SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
/* else mcr->channel = i; XXX */
}
break;
default:
SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
break;
}
cd->channelid = mcr->channel;
cd->isdntxdelay = mcr->txdelay;
/* check whether we have a pointer. Seems like */
/* this should be adequate. GJ 19.09.97 */
if(ctrl_desc[cd->controller].N_CONNECT_REQUEST == NULL)
/*XXX*/ SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN);
if((GET_CAUSE_VAL(cd->cause_in)) != CAUSE_I4B_NORMAL)
{
i4b_l4_disconnect_ind(cd);
freecd_by_cd(cd);
}
else
{
(*ctrl_desc[cd->controller].N_CONNECT_REQUEST)(mcr->cdid);
}
break;
}
/* connect response, accept/reject/ignore incoming call */
case I4B_CONNECT_RESP:
{
msg_connect_resp_t *mcrsp;
mcrsp = (msg_connect_resp_t *)data;
if((cd = cd_by_cdid(mcrsp->cdid)) == NULL)/* get cd */
{
NDBGL4(L4_ERR, "I4B_CONNECT_RESP ioctl, cdid not found!");
error = EINVAL;
break;
}
T400_stop(cd);
cd->driver = mcrsp->driver;
cd->driver_unit = mcrsp->driver_unit;
cd->max_idle_time = mcrsp->max_idle_time;
cd->shorthold_data.shorthold_algorithm = SHA_FIXU;
cd->shorthold_data.unitlen_time = 0; /* this is incoming */
cd->shorthold_data.idle_time = 0;
cd->shorthold_data.earlyhup_time = 0;
cd->isdntxdelay = mcrsp->txdelay;
NDBGL4(L4_TIMO, "I4B_CONNECT_RESP max_idle_time set to %ld seconds", (long)cd->max_idle_time);
(*ctrl_desc[cd->controller].N_CONNECT_RESPONSE)(mcrsp->cdid, mcrsp->response, mcrsp->cause);
break;
}
/* disconnect request, actively terminate connection */
case I4B_DISCONNECT_REQ:
{
msg_discon_req_t *mdr;
mdr = (msg_discon_req_t *)data;
if((cd = cd_by_cdid(mdr->cdid)) == NULL)/* get cd */
{
NDBGL4(L4_ERR, "I4B_DISCONNECT_REQ ioctl, cdid not found!");
error = EINVAL;
break;
}
/* preset causes with our cause */
cd->cause_in = cd->cause_out = mdr->cause;
(*ctrl_desc[cd->controller].N_DISCONNECT_REQUEST)(mdr->cdid, mdr->cause);
break;
}
/* controller info request */
case I4B_CTRL_INFO_REQ:
{
msg_ctrl_info_req_t *mcir;
mcir = (msg_ctrl_info_req_t *)data;
mcir->ncontroller = nctrl;
if(mcir->controller > nctrl)
{
mcir->ctrl_type = -1;
mcir->card_type = -1;
}
else
{
mcir->ctrl_type =
ctrl_desc[mcir->controller].ctrl_type;
mcir->card_type =
ctrl_desc[mcir->controller].card_type;
mcir->nbch =
ctrl_desc[mcir->controller].nbch;
if(ctrl_desc[mcir->controller].ctrl_type == CTRL_PASSIVE)
mcir->tei = ctrl_desc[mcir->controller].tei;
else
mcir->tei = -1;
}
break;
}
/* dial response */
case I4B_DIALOUT_RESP:
{
drvr_link_t *dlt = NULL;
msg_dialout_resp_t *mdrsp;
mdrsp = (msg_dialout_resp_t *)data;
switch(mdrsp->driver)
{
#if NI4BIPR > 0
case BDRV_IPR:
dlt = ipr_ret_linktab(mdrsp->driver_unit);
break;
#endif
#if NI4BISPPP > 0
case BDRV_ISPPP:
dlt = i4bisppp_ret_linktab(mdrsp->driver_unit);
break;
#endif
#if NI4BTEL > 0
case BDRV_TEL:
dlt = tel_ret_linktab(mdrsp->driver_unit);
break;
#endif
#if NIBC > 0
case BDRV_IBC:
dlt = ibc_ret_linktab(mdrsp->driver_unit);
break;
#endif
#if NI4BING > 0
case BDRV_ING:
dlt = ing_ret_linktab(mdrsp->driver_unit);
break;
#endif
}
if(dlt != NULL)
(*dlt->dial_response)(mdrsp->driver_unit, mdrsp->stat, mdrsp->cause);
break;
}
/* update timeout value */
case I4B_TIMEOUT_UPD:
{
msg_timeout_upd_t *mtu;
int x;
mtu = (msg_timeout_upd_t *)data;
NDBGL4(L4_TIMO, "I4B_TIMEOUT_UPD ioctl, alg %d, unit %d, idle %d, early %d!",
mtu->shorthold_data.shorthold_algorithm, mtu->shorthold_data.unitlen_time,
mtu->shorthold_data.idle_time, mtu->shorthold_data.earlyhup_time);
if((cd = cd_by_cdid(mtu->cdid)) == NULL)/* get cd */
{
NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, cdid not found!");
error = EINVAL;
break;
}
switch( mtu->shorthold_data.shorthold_algorithm )
{
case SHA_FIXU:
/*
* For this algorithm unitlen_time,
* idle_time and earlyhup_time are used.
*/
if(!(mtu->shorthold_data.unitlen_time >= 0 &&
mtu->shorthold_data.idle_time >= 0 &&
mtu->shorthold_data.earlyhup_time >= 0))
{
NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, invalid args for fix unit algorithm!");
error = EINVAL;
}
break;
case SHA_VARU:
/*
* For this algorithm unitlen_time and
* idle_time are used. both must be
* positive integers. earlyhup_time is
* not used and must be 0.
*/
if(!(mtu->shorthold_data.unitlen_time > 0 &&
mtu->shorthold_data.idle_time >= 0 &&
mtu->shorthold_data.earlyhup_time == 0))
{
NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, invalid args for var unit algorithm!");
error = EINVAL;
}
break;
default:
NDBGL4(L4_ERR, "I4B_TIMEOUT_UPD ioctl, invalid algorithm!");
error = EINVAL;
break;
}
/*
* any error set above requires us to break
* out of the outer switch
*/
if(error != 0)
break;
x = SPLI4B();
cd->shorthold_data.shorthold_algorithm = mtu->shorthold_data.shorthold_algorithm;
cd->shorthold_data.unitlen_time = mtu->shorthold_data.unitlen_time;
cd->shorthold_data.idle_time = mtu->shorthold_data.idle_time;
cd->shorthold_data.earlyhup_time = mtu->shorthold_data.earlyhup_time;
splx(x);
break;
}
/* soft enable/disable interface */
case I4B_UPDOWN_IND:
{
msg_updown_ind_t *mui;
mui = (msg_updown_ind_t *)data;
#if NI4BIPR > 0
if(mui->driver == BDRV_IPR)
{
drvr_link_t *dlt;
dlt = ipr_ret_linktab(mui->driver_unit);
(*dlt->updown_ind)(mui->driver_unit, mui->updown);
}
#endif
break;
}
/* send ALERT request */
case I4B_ALERT_REQ:
{
msg_alert_req_t *mar;
mar = (msg_alert_req_t *)data;
if((cd = cd_by_cdid(mar->cdid)) == NULL)
{
NDBGL4(L4_ERR, "I4B_ALERT_REQ ioctl, cdid not found!");
error = EINVAL;
break;
}
T400_stop(cd);
(*ctrl_desc[cd->controller].N_ALERT_REQUEST)(mar->cdid);
break;
}
/* version/release number request */
case I4B_VR_REQ:
{
msg_vr_req_t *mvr;
mvr = (msg_vr_req_t *)data;
mvr->version = VERSION;
mvr->release = REL;
mvr->step = STEP;
break;
}
/* set D-channel protocol for a controller */
case I4B_PROT_IND:
{
msg_prot_ind_t *mpi;
mpi = (msg_prot_ind_t *)data;
ctrl_desc[mpi->controller].protocol = mpi->protocol;
break;
}
/* Download request */
case I4B_CTRL_DOWNLOAD:
{
struct isdn_dr_prot *prots = NULL, *prots2 = NULL;
struct isdn_download_request *r =
(struct isdn_download_request*)data;
int i;
if (r->controller < 0 || r->controller >= nctrl)
{
error = ENODEV;
goto download_done;
}
if(!ctrl_desc[r->controller].N_DOWNLOAD)
{
error = ENODEV;
goto download_done;
}
prots = malloc(r->numprotos * sizeof(struct isdn_dr_prot),
M_DEVBUF, M_WAITOK);
prots2 = malloc(r->numprotos * sizeof(struct isdn_dr_prot),
M_DEVBUF, M_WAITOK);
if(!prots || !prots2)
{
error = ENOMEM;
goto download_done;
}
copyin(r->protocols, prots, r->numprotos * sizeof(struct isdn_dr_prot));
for(i = 0; i < r->numprotos; i++)
{
prots2[i].microcode = malloc(prots[i].bytecount, M_DEVBUF, M_WAITOK);
copyin(prots[i].microcode, prots2[i].microcode, prots[i].bytecount);
prots2[i].bytecount = prots[i].bytecount;
}
error = ctrl_desc[r->controller].N_DOWNLOAD(
ctrl_desc[r->controller].unit,
r->numprotos, prots2);
download_done:
if(prots2)
{
for(i = 0; i < r->numprotos; i++)
{
if(prots2[i].microcode)
{
free(prots2[i].microcode, M_DEVBUF);
}
}
free(prots2, M_DEVBUF);
}
if(prots)
{
free(prots, M_DEVBUF);
}
break;
}
/* Diagnostic request */
case I4B_ACTIVE_DIAGNOSTIC:
{
struct isdn_diagnostic_request req, *r =
(struct isdn_diagnostic_request*)data;
req.in_param = req.out_param = NULL;
if (r->controller < 0 || r->controller >= nctrl)
{
error = ENODEV;
goto diag_done;
}
if(!ctrl_desc[r->controller].N_DIAGNOSTICS)
{
error = ENODEV;
goto diag_done;
}
memcpy(&req, r, sizeof(req));
if(req.in_param_len)
{
/* XXX arbitrary limit */
if (req.in_param_len >
I4B_ACTIVE_DIAGNOSTIC_MAXPARAMLEN) {
error = EINVAL;
goto diag_done;
}
req.in_param = malloc(r->in_param_len, M_DEVBUF, M_WAITOK);
if(!req.in_param)
{
error = ENOMEM;
goto diag_done;
}
error = copyin(r->in_param, req.in_param, req.in_param_len);
if (error)
goto diag_done;
}
if(req.out_param_len)
{
req.out_param = malloc(r->out_param_len, M_DEVBUF, M_WAITOK);
if(!req.out_param)
{
error = ENOMEM;
goto diag_done;
}
}
error = ctrl_desc[r->controller].N_DIAGNOSTICS(r->controller, &req);
if(!error && req.out_param_len)
error = copyout(req.out_param, r->out_param, req.out_param_len);
diag_done:
if(req.in_param)
free(req.in_param, M_DEVBUF);
if(req.out_param)
free(req.out_param, M_DEVBUF);
break;
}
/* default */
default:
error = ENOTTY;
break;
}
return(error);
}
#ifdef OS_USES_SELECT
/*---------------------------------------------------------------------------*
* i4bselect - device driver select routine
*---------------------------------------------------------------------------*/
PDEVSTATIC int
i4bselect(dev_t dev, int rw, struct thread *td)
{
int x;
if(minor(dev))
return(ENODEV);
switch(rw)
{
case FREAD:
if(!IF_QEMPTY(&i4b_rdqueue))
return(1);
x = splimp();
selrecord(td, &select_rd_info);
selflag = 1;
splx(x);
return(0);
break;
case FWRITE:
return(1);
break;
}
return(0);
}
#else /* OS_USES_SELECT */
/*---------------------------------------------------------------------------*
* i4bpoll - device driver poll routine
*---------------------------------------------------------------------------*/
PDEVSTATIC int
i4bpoll(dev_t dev, int events, struct thread *td)
{
int x;
if(minor(dev))
return(ENODEV);
if((events & POLLIN) || (events & POLLRDNORM))
{
if(!IF_QEMPTY(&i4b_rdqueue))
return(1);
x = splimp();
selrecord(td, &select_rd_info);
selflag = 1;
splx(x);
return(0);
}
else if((events & POLLOUT) || (events & POLLWRNORM))
{
return(1);
}
return(0);
}
#endif /* OS_USES_SELECT */
/*---------------------------------------------------------------------------*
* i4bputqueue - put message into queue to userland
*---------------------------------------------------------------------------*/
void
i4bputqueue(struct mbuf *m)
{
int x;
if(!openflag)
{
i4b_Dfreembuf(m);
return;
}
x = splimp();
IF_LOCK(&i4b_rdqueue);
if(_IF_QFULL(&i4b_rdqueue))
{
struct mbuf *m1;
_IF_DEQUEUE(&i4b_rdqueue, m1);
i4b_Dfreembuf(m1);
NDBGL4(L4_ERR, "ERROR, queue full, removing entry!");
}
_IF_ENQUEUE(&i4b_rdqueue, m);
IF_UNLOCK(&i4b_rdqueue);
splx(x);
if(readflag)
{
readflag = 0;
wakeup((caddr_t) &i4b_rdqueue);
}
if(selflag)
{
selflag = 0;
selwakeup(&select_rd_info);
}
}
/*---------------------------------------------------------------------------*
* i4bputqueue_hipri - put message into front of queue to userland
*---------------------------------------------------------------------------*/
void
i4bputqueue_hipri(struct mbuf *m)
{
int x;
if(!openflag)
{
i4b_Dfreembuf(m);
return;
}
x = splimp();
IF_LOCK(&i4b_rdqueue);
if(_IF_QFULL(&i4b_rdqueue))
{
struct mbuf *m1;
_IF_DEQUEUE(&i4b_rdqueue, m1);
i4b_Dfreembuf(m1);
NDBGL4(L4_ERR, "ERROR, queue full, removing entry!");
}
_IF_PREPEND(&i4b_rdqueue, m);
IF_UNLOCK(&i4b_rdqueue);
splx(x);
if(readflag)
{
readflag = 0;
wakeup((caddr_t) &i4b_rdqueue);
}
if(selflag)
{
selflag = 0;
selwakeup(&select_rd_info);
}
}
#endif /* NI4B > 0 */
Reference in New Issue View Git Blame Copy Permalink