diff options
Diffstat (limited to 'sys/i4b/layer4/i4b_i4bdrv.c')
| -rw-r--r-- | sys/i4b/layer4/i4b_i4bdrv.c | 832 |
1 files changed, 832 insertions, 0 deletions
diff --git a/sys/i4b/layer4/i4b_i4bdrv.c b/sys/i4b/layer4/i4b_i4bdrv.c new file mode 100644 index 0000000..0c21e8e --- /dev/null +++ b/sys/i4b/layer4/i4b_i4bdrv.c @@ -0,0 +1,832 @@ +/* + * Copyright (c) 1997, 1998 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 + * -------------------------------------------- + * + * $Id: i4b_i4bdrv.c,v 1.33 1998/12/12 19:44:36 hm Exp $ + * + * last edit-date: [Sat Dec 5 18:35:02 1998] + * + *---------------------------------------------------------------------------*/ + +#include "i4b.h" +#include "i4bipr.h" + +#if NI4B > 1 +#error "only 1 (one) i4b device possible!" +#endif + +#if NI4B > 0 + +#include <sys/param.h> + +#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001 +#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/proc.h> +#include <sys/fcntl.h> +#include <sys/socket.h> +#include <sys/select.h> +#include <net/if.h> + +#ifdef __FreeBSD__ +#include "opt_devfs.h" +#endif + +#ifdef DEVFS +#include <sys/devfsext.h> +#endif + +#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> + +#if defined(__FreeBSD__) && (!defined(__FreeBSD_version) || __FreeBSD_version < 300001) +/* do nothing */ +#else +#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; +#ifdef DEVFS +static void *devfs_token; +#endif + +#ifndef __FreeBSD__ +#define PDEVSTATIC /* - not static - */ +PDEVSTATIC void i4battach __P((void)); +PDEVSTATIC int i4bopen __P((dev_t dev, int flag, int fmt, struct proc *p)); +PDEVSTATIC int i4bclose __P((dev_t dev, int flag, int fmt, struct proc *p)); +PDEVSTATIC int i4bread __P((dev_t dev, struct uio *uio, int ioflag)); +PDEVSTATIC int i4bioctl __P((dev_t dev, int cmd, caddr_t data, int flag, struct proc *p)); +PDEVSTATIC int i4bpoll __P((dev_t dev, int events, struct proc *p)); + +#if defined (__OpenBSD__) +PDEVSTATIC int i4bselect(dev_t dev, int rw, struct proc *p); +#endif + +#endif + +#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; +#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001 +PDEVSTATIC d_poll_t i4bpoll; +#else +PDEVSTATIC d_select_t i4bselect; +#endif + +#define CDEV_MAJOR 60 +static struct cdevsw i4b_cdevsw = + { i4bopen, i4bclose, i4bread, nowrite, + i4bioctl, nostop, nullreset, nodevtotty, +#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001 + i4bpoll, nommap, NULL, "i4b", NULL, -1 }; +#else + i4bselect, nommap, NULL, "i4b", NULL, -1 }; +#endif + +PDEVSTATIC void i4battach(void *); +PSEUDO_SET(i4battach, i4b_i4bdrv); + +#endif /* __FreeBSD__ */ + +/*---------------------------------------------------------------------------* + * interface attach routine + *---------------------------------------------------------------------------*/ +PDEVSTATIC void +#ifdef __FreeBSD__ +i4battach(void *dummy) +#else +i4battach() +#endif +{ +#ifndef HACK_NO_PSEUDO_ATTACH_MSG + printf("i4b: ISDN call control device attached\n"); +#endif + i4b_rdqueue.ifq_maxlen = IFQ_MAXLEN; +#ifdef DEVFS + devfs_token = devfs_add_devswf(&i4b_cdevsw, 0, DV_CHR, + UID_ROOT, GID_WHEEL, 0600, + "i4b", 0); +#endif +} + +/*---------------------------------------------------------------------------* + * i4bopen - device driver open routine + *---------------------------------------------------------------------------*/ +PDEVSTATIC int +i4bopen(dev_t dev, int flag, int fmt, struct proc *p) +{ + 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 proc *p) +{ + 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); + + while(IF_QEMPTY(&i4b_rdqueue)) + { + x = splimp(); + readflag = 1; + splx(x); + tsleep((caddr_t) &i4b_rdqueue, (PZERO + 1) | PCATCH, "bird", 0); + } + + x = splimp(); + + IF_DEQUEUE(&i4b_rdqueue, m); + + 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 proc *p) +#else +i4bioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc *p) +#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 */ + { + DBGL4(L4_ERR, "i4bioctl", ("I4B_CONNECT_REQ ioctl, cdid not found!\n")); + error = EINVAL; + 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->unitlen_time = mcr->unitlen_time; + cd->idle_time = mcr->idle_time; + cd->earlyhup_time = mcr->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; + + DBGL4(L4_TIMO, "i4bioctl", ("I4B_CONNECT_REQ times, unitlen=%ld idle=%ld earlyhup=%ld\n", + (long)cd->unitlen_time, (long)cd->idle_time, (long)cd->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: + if((ctrl_desc[mcr->controller].bch_state[CHAN_B1] != BCH_ST_FREE) && + (ctrl_desc[mcr->controller].bch_state[CHAN_B2] != BCH_ST_FREE)) + SET_CAUSE_VAL(cd->cause_in, CAUSE_I4B_NOCHAN); + 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 */ + { + DBGL4(L4_ERR, "i4bioctl", ("I4B_CONNECT_RESP ioctl, cdid not found!\n")); + 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->unitlen_time = 0; /* this is incoming */ + cd->idle_time = 0; + cd->earlyhup_time = 0; + + cd->isdntxdelay = mcrsp->txdelay; + + DBGL4(L4_TIMO, "i4bioctl", ("I4B_CONNECT_RESP max_idle_time set to %ld seconds\n", (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 */ + { + DBGL4(L4_ERR, "i4bioctl", ("I4B_DISCONNECT_REQ ioctl, cdid not found!\n")); + 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; + + 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: + { + msg_dialout_resp_t *mdrsp; + + mdrsp = (msg_dialout_resp_t *)data; + +#if NI4BIPR > 0 + if(mdrsp->driver == BDRV_IPR) + { + drvr_link_t *dlt; + dlt = ipr_ret_linktab(mdrsp->driver_unit); + (*dlt->dial_response)(mdrsp->driver_unit, mdrsp->stat); + } +#endif + break; + } + + /* update timeout value */ + + case I4B_TIMEOUT_UPD: + { + msg_timeout_upd_t *mtu; + int x; + + mtu = (msg_timeout_upd_t *)data; + + if((cd = cd_by_cdid(mtu->cdid)) == NULL)/* get cd */ + { + DBGL4(L4_ERR, "i4bioctl", ("I4B_TIMEOUT_UPD ioctl, cdid not found!\n")); + error = EINVAL; + break; + } + + x = SPLI4B(); + cd->unitlen_time = mtu->unitlen_time; + cd->idle_time = mtu->idle_time; + cd->earlyhup_time = mtu->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) + { + DBGL4(L4_ERR, "i4bioctl", ("I4B_ALERT_REQ ioctl, cdid not found!\n")); + 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; + } + + /* 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(!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(!ctrl_desc[r->controller].N_DIAGNOSTICS) + { + error = ENODEV; + goto diag_done; + } + + memcpy(&req, r, sizeof(req)); + + if(req.in_param_len) + { + req.in_param = malloc(r->in_param_len, M_DEVBUF, M_WAITOK); + + if(!req.in_param) + { + error = ENOMEM; + goto diag_done; + } + copyin(r->in_param, req.in_param, req.in_param_len); + } + + 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) + 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); +} + +#if (defined(__FreeBSD__) && \ + (!defined(__FreeBSD_version) || (__FreeBSD_version < 300001))) \ + || defined (__OpenBSD__) + +/*---------------------------------------------------------------------------* + * i4bselect - device driver select routine + *---------------------------------------------------------------------------*/ +PDEVSTATIC int +i4bselect(dev_t dev, int rw, struct proc *p) +{ + int x; + + if(minor(dev)) + return(ENODEV); + + switch(rw) + { + case FREAD: + if(!IF_QEMPTY(&i4b_rdqueue)) + return(1); + x = splimp(); + selrecord(p, &select_rd_info); + selflag = 1; + splx(x); + return(0); + break; + + case FWRITE: + return(1); + break; + } + return(0); +} + +#else /* NetBSD and FreeBSD -current */ + +/*---------------------------------------------------------------------------* + * i4bpoll - device driver poll routine + *---------------------------------------------------------------------------*/ +PDEVSTATIC int +i4bpoll(dev_t dev, int events, struct proc *p) +{ + int x; + + if(minor(dev)) + return(ENODEV); + + if((events & POLLIN) || (events & POLLRDNORM)) + { + if(!IF_QEMPTY(&i4b_rdqueue)) + return(1); + + x = splimp(); + selrecord(p, &select_rd_info); + selflag = 1; + splx(x); + return(0); + } + else if((events & POLLOUT) || (events & POLLWRNORM)) + { + return(1); + } + + return(0); +} + +#endif /* defined(__FreeBSD__) && __FreeBSD__ < 3 */ + +/*---------------------------------------------------------------------------* + * i4bputqueue - put message into queue to userland + *---------------------------------------------------------------------------*/ +void +i4bputqueue(struct mbuf *m) +{ + int x; + + if(!openflag) + { + i4b_Dfreembuf(m); + return; + } + + x = splimp(); + + if(IF_QFULL(&i4b_rdqueue)) + { + struct mbuf *m1; + IF_DEQUEUE(&i4b_rdqueue, m1); + i4b_Dfreembuf(m1); + DBGL4(L4_ERR, "i4bputqueue", ("ERROR, queue full, removing entry!\n")); + } + + IF_ENQUEUE(&i4b_rdqueue, m); + + 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(IF_QFULL(&i4b_rdqueue)) + { + struct mbuf *m1; + IF_DEQUEUE(&i4b_rdqueue, m1); + i4b_Dfreembuf(m1); + DBGL4(L4_ERR, "i4bputqueue", ("ERROR, queue full, removing entry!\n")); + } + + IF_PREPEND(&i4b_rdqueue, m); + + splx(x); + + if(readflag) + { + readflag = 0; + wakeup((caddr_t) &i4b_rdqueue); + } + + if(selflag) + { + selflag = 0; + selwakeup(&select_rd_info); + } +} + +#if BSD > 199306 && defined(__FreeBSD__) +static i4b_devsw_installed = 0; + +static void +i4b_drvinit(void *unused) +{ + dev_t dev; + + if( ! i4b_devsw_installed ) { + dev = makedev(CDEV_MAJOR,0); + cdevsw_add(&dev,&i4b_cdevsw,NULL); + i4b_devsw_installed = 1; + } +} + +SYSINIT(i4bdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,i4b_drvinit,NULL) +#endif /* __FreeBSD__ */ +#endif /* NI4B > 0 */ |
