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1160 lines
31 KiB
C
1160 lines
31 KiB
C
/*
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* Copyright (c) 1997, 1999 Hellmuth Michaelis. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*---------------------------------------------------------------------------
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*
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* i4b_tel.c - device driver for ISDN telephony
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* --------------------------------------------
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*
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* $Id: i4b_tel.c,v 1.3 1999/05/20 10:09:03 hm Exp $
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*
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* last edit-date: [Thu May 6 09:30:13 1999]
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*
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*---------------------------------------------------------------------------*/
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#include "i4btel.h"
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#if NI4BTEL > 0
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#undef I4BTELDEBUG
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#include <sys/param.h>
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#include <sys/systm.h>
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#if defined(__FreeBSD_version) && __FreeBSD_version >= 300001 || defined(__NetBSD__)
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#include <sys/ioccom.h>
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#include <sys/poll.h>
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#else
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#include <sys/ioctl.h>
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#include <sys/fcntl.h>
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#endif
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#include <sys/conf.h>
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#include <sys/uio.h>
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#include <sys/kernel.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <net/if.h>
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#include <sys/proc.h>
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#include <sys/tty.h>
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#ifdef __FreeBSD__
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#include "opt_devfs.h"
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#endif
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#ifdef DEVFS
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#include <sys/devfsext.h>
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#endif
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#ifdef __bsdi__
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#include <sys/device.h>
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#endif
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#ifdef __FreeBSD__
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#include <machine/i4b_ioctl.h>
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#include <machine/i4b_tel_ioctl.h>
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#include <machine/i4b_debug.h>
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#else
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#include <i4b/i4b_ioctl.h>
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#include <i4b/i4b_tel_ioctl.h>
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#include <i4b/i4b_debug.h>
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#endif
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#include <i4b/include/i4b_global.h>
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#include <i4b/include/i4b_mbuf.h>
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#include <i4b/include/i4b_l3l4.h>
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#include <i4b/layer4/i4b_l4.h>
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/* minor number: lower 6 bits = unit number */
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#include <i4b/layer4/i4b_l4.h>
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#define UNITBITS 6
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#define UNITMASK 0x3f
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#define UNIT(n) (minor(n) & UNITMASK)
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/* minor number: upper 2 bits = function number */
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#define FUNCMASK 0x03
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#define FUNC(n) (((minor(n)) >> UNITBITS) & FUNCMASK)
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#define FUNCTEL 0 /* 0 = normal i4btel device */
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#define FUNCDIAL 1 /* 1 = i4bteld dialout device */
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#define NOFUNCS 2 /* number of device classes */
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typedef struct {
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/* used only in func = FUNCTEL */
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drvr_link_t drvr_linktab; /* driver linktab */
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isdn_link_t *isdn_linktab; /* isdn linktab */
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int audiofmt; /* audio format conversion */
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u_char *rcvttab; /* conversion table on read */
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u_char *wcvttab; /* conversion table on write */
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call_desc_t *cdp; /* call descriptor pointer */
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/* used only in func = FUNCDIAL */
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char result; /* result code for dial dev */
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/* used in func = FUNCDIAL and func = FUNCTEL*/
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int devstate; /* state of this unit */
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#define ST_IDLE 0x00 /* idle */
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#define ST_CONNECTED 0x01 /* isdn connected state */
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#define ST_ISOPEN 0x02 /* userland opened */
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#define ST_RDWAITDATA 0x04 /* userland read waiting */
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#define ST_WRWAITEMPTY 0x08 /* userland write waiting */
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struct selinfo selp; /* select / poll */
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#ifdef DEVFS
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void *devfs_token; /* token for DEVFS */
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#endif
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} tel_sc_t;
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static tel_sc_t tel_sc[NI4BTEL][NOFUNCS];
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/* forward decl */
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static void tel_rx_data_rdy(int unit);
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static void tel_tx_queue_empty(int unit);
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static void tel_init_linktab(int unit);
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static void tel_connect(int unit, void *cdp);
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static void tel_disconnect(int unit, void *cdp);
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/* audio format conversion tables */
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static unsigned char a2u_tab[];
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static unsigned char u2a_tab[];
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static unsigned char bitreverse[];
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#ifndef __FreeBSD__
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#define PDEVSTATIC /* - not static - */
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PDEVSTATIC void i4btelattach __P((void));
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#ifdef __bsdi__
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PDEVSTATIC int i4btelioctl __P((dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p));
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#else
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PDEVSTATIC int i4btelioctl __P((dev_t dev, int cmd, caddr_t data, int flag, struct proc *p));
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#endif
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int i4btelopen __P((dev_t dev, int flag, int fmt, struct proc *p));
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int i4btelclose __P((dev_t dev, int flag, int fmt, struct proc *p));
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int i4btelread __P((dev_t dev, struct uio *uio, int ioflag));
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int i4btelwrite __P((dev_t dev, struct uio * uio, int ioflag));
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#ifdef OS_USES_POLL
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int i4btelpoll __P((dev_t dev, int events, struct proc *p));
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#else
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int i4btelsel __P((dev_t dev, int rw, struct proc *p));
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#endif
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#endif /* __FreeBSD__ */
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#if BSD > 199306 && defined(__FreeBSD__)
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#define PDEVSTATIC static
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PDEVSTATIC d_open_t i4btelopen;
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PDEVSTATIC d_close_t i4btelclose;
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PDEVSTATIC d_read_t i4btelread;
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PDEVSTATIC d_read_t i4btelwrite;
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PDEVSTATIC d_ioctl_t i4btelioctl;
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#ifdef OS_USES_POLL
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PDEVSTATIC d_poll_t i4btelpoll;
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#define POLLFIELD i4btelpoll
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#else
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PDEVSTATIC d_select_t i4btelsel;
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#define POLLFIELD i4btelsel
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#endif
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#define CDEV_MAJOR 56
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static struct cdevsw i4btel_cdevsw = {
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/* open */ i4btelopen,
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/* close */ i4btelclose,
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/* read */ i4btelread,
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/* write */ i4btelwrite,
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/* ioctl */ i4btelioctl,
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/* stop */ nostop,
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/* reset */ noreset,
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/* devtotty */ nodevtotty,
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/* poll */ POLLFIELD,
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/* mmap */ nommap,
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/* strategy */ nostrategy,
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/* name */ "i4btel",
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/* parms */ noparms,
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/* maj */ CDEV_MAJOR,
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/* dump */ nodump,
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/* psize */ nopsize,
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/* flags */ 0,
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/* maxio */ 0,
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/* bmaj */ -1
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};
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PDEVSTATIC void i4btelinit(void *unused);
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PDEVSTATIC void i4btelattach(void *);
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PSEUDO_SET(i4btelattach, i4b_tel);
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/*===========================================================================*
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* DEVICE DRIVER ROUTINES
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*===========================================================================*/
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/*---------------------------------------------------------------------------*
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* initialization at kernel load time
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*---------------------------------------------------------------------------*/
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PDEVSTATIC void
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i4btelinit(void *unused)
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{
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cdevsw_add(&i4btel_cdevsw);
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}
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SYSINIT(i4bteldev, SI_SUB_DRIVERS,
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SI_ORDER_MIDDLE+CDEV_MAJOR, &i4btelinit, NULL);
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#endif /* BSD > 199306 && defined(__FreeBSD__) */
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#ifdef __bsdi__
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int i4btelsel(dev_t dev, int rw, struct proc *p);
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int i4btelmatch(struct device *parent, struct cfdata *cf, void *aux);
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void dummy_i4btelattach(struct device*, struct device *, void *);
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#define CDEV_MAJOR 62
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static struct cfdriver i4btelcd =
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{ NULL, "i4btel", i4btelmatch, dummy_i4btelattach, DV_DULL,
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sizeof(struct cfdriver) };
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struct devsw i4btelsw =
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{ &i4btelcd,
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i4btelopen, i4btelclose, i4btelread, i4btelwrite,
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i4btelioctl, i4btelsel, nommap, nostrat,
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nodump, nopsize, 0, nostop
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};
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int
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i4btelmatch(struct device *parent, struct cfdata *cf, void *aux)
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{
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DBGL4(L4_TELDBG, "i4btelmatch", ("aux=0x%x\n", aux));
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return 1;
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}
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void
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dummy_i4btelattach(struct device *parent, struct device *self, void *aux)
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{
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DBGL4(L4_TELDBG, "dummy_i4btelattach", ("aux=0x%x\n", aux));
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}
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#endif /* __bsdi__ */
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/*---------------------------------------------------------------------------*
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* interface attach routine
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*---------------------------------------------------------------------------*/
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PDEVSTATIC void
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#ifdef __FreeBSD__
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i4btelattach(void *dummy)
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#else
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i4btelattach()
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#endif
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{
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int i, j;
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#ifndef HACK_NO_PSEUDO_ATTACH_MSG
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printf("i4btel: %d ISDN telephony interface device(s) attached\n", NI4BTEL);
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#endif
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for(i=0; i < NI4BTEL; i++)
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{
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for(j=0; j < NOFUNCS; j++)
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{
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tel_sc[i][j].devstate = ST_IDLE;
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tel_sc[i][j].audiofmt = CVT_NONE;
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tel_sc[i][j].rcvttab = 0;
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tel_sc[i][j].wcvttab = 0;
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tel_sc[i][j].result = 0;
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tel_init_linktab(i);
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#ifdef DEVFS
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/* XXX */ tel_sc[i][j].devfs_token
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= devfs_add_devswf(&i4btel_cdevsw, i, DV_CHR,
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UID_ROOT, GID_WHEEL, 0600,
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"i4btel%d", i);
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#endif
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}
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}
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}
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/*---------------------------------------------------------------------------*
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* open tel device
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*---------------------------------------------------------------------------*/
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PDEVSTATIC int
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i4btelopen(dev_t dev, int flag, int fmt, struct proc *p)
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{
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int unit = UNIT(dev);
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int func = FUNC(dev);
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tel_sc_t *sc;
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if(unit > NI4BTEL)
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return(ENXIO);
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sc = &tel_sc[unit][func];
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if(sc->devstate & ST_ISOPEN)
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return(EBUSY);
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sc->devstate |= ST_ISOPEN;
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if(func == FUNCDIAL)
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{
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sc->result = 0;
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}
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return(0);
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}
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/*---------------------------------------------------------------------------*
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* close tel device
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*---------------------------------------------------------------------------*/
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PDEVSTATIC int
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i4btelclose(dev_t dev, int flag, int fmt, struct proc *p)
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{
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int unit = UNIT(dev);
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int func = FUNC(dev);
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tel_sc_t *sc;
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int error = 0;
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if(unit > NI4BTEL)
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return(ENXIO);
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sc = &tel_sc[unit][func];
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if((func == FUNCTEL) &&
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(sc->isdn_linktab != NULL && sc->isdn_linktab->tx_queue != NULL))
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{
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while(!(IF_QEMPTY(sc->isdn_linktab->tx_queue)))
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{
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sc->devstate |= ST_WRWAITEMPTY;
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if((error = tsleep((caddr_t) &sc->isdn_linktab->tx_queue,
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TTIPRI | PCATCH, "wtcl", 0)) != 0)
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{
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break;
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}
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}
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sc->devstate &= ~ST_WRWAITEMPTY;
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}
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sc->devstate &= ~ST_ISOPEN;
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return(error);
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}
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/*---------------------------------------------------------------------------*
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* i4btelioctl - device driver ioctl routine
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*---------------------------------------------------------------------------*/
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PDEVSTATIC int
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#if defined(__FreeBSD_version) && __FreeBSD_version >= 300003
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i4btelioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
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#elif defined(__bsdi__)
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i4btelioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
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#else
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i4btelioctl(dev_t dev, int cmd, caddr_t data, int flag, struct proc *p)
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#endif
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{
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int unit = UNIT(dev);
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int func = FUNC(dev);
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int error = 0;
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struct mbuf *m;
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int s;
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tel_sc_t *sc = &tel_sc[unit][func];
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if(func == FUNCTEL)
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{
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switch(cmd)
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{
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case I4B_TEL_GETAUDIOFMT:
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*(int *)data = sc->audiofmt;
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break;
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case I4B_TEL_SETAUDIOFMT:
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switch (*(int *)data)
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{
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case CVT_NONE:
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sc->rcvttab = 0;
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sc->wcvttab = 0;
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break;
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case CVT_ALAW2ULAW:
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/* ISDN: a-law */
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/* user: u-law */
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sc->rcvttab = a2u_tab;
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sc->wcvttab = u2a_tab;
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break;
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case CVT_ULAW2ALAW:
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/* ISDN: u-law */
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/* user: a-law */
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sc->rcvttab = u2a_tab;
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sc->wcvttab = a2u_tab;
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break;
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default:
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error = ENODEV;
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break;
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}
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if(error == 0)
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sc->audiofmt = *(int *)data;
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break;
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case I4B_TEL_EMPTYINPUTQUEUE:
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s = splimp();
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while((sc->devstate & ST_CONNECTED) &&
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(sc->devstate & ST_ISOPEN) &&
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!IF_QEMPTY(sc->isdn_linktab->rx_queue))
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{
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IF_DEQUEUE(sc->isdn_linktab->rx_queue, m);
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if(m)
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i4b_Bfreembuf(m);
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}
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splx(s);
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break;
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default:
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error = ENOTTY;
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break;
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}
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}
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else if(func == FUNCDIAL)
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{
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switch(cmd)
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{
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default:
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error = ENOTTY;
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break;
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}
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}
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return(error);
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}
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/*---------------------------------------------------------------------------*
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* read from tel device
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*---------------------------------------------------------------------------*/
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PDEVSTATIC int
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i4btelread(dev_t dev, struct uio *uio, int ioflag)
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{
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int unit = UNIT(dev);
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int func = FUNC(dev);
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struct mbuf *m;
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int s;
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int error = 0;
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tel_sc_t *sc = &tel_sc[unit][func];
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if(!(sc->devstate & ST_ISOPEN))
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return(EIO);
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if(func == FUNCTEL)
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{
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while(IF_QEMPTY(sc->isdn_linktab->rx_queue) &&
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(sc->devstate & ST_ISOPEN) &&
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(sc->devstate & ST_CONNECTED))
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{
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sc->devstate |= ST_RDWAITDATA;
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DBGL4(L4_TELDBG, "i4btelread", ("i4btel%d, queue empty!\n", unit));
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if((error = tsleep((caddr_t) &sc->isdn_linktab->rx_queue,
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TTIPRI | PCATCH,
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"rtel", 0 )) != 0)
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{
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sc->devstate &= ~ST_RDWAITDATA;
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return(error);
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}
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}
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if(!(sc->devstate & ST_ISOPEN))
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{
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return(EIO);
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}
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if(!(sc->devstate & ST_CONNECTED))
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{
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return(EIO);
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}
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s = splimp();
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IF_DEQUEUE(sc->isdn_linktab->rx_queue, m);
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if(m && m->m_len > 0)
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{
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register int i;
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for(i = 0; i < m->m_len; i++)
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{
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/* always reverse bit order from line */
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mtod(m,u_char *)[i] = bitreverse[mtod(m,u_char *)[i]];
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/* convert if necessary */
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if(sc->rcvttab)
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mtod(m,u_char *)[i] = sc->rcvttab[mtod(m,u_char *)[i]];
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}
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error = uiomove(m->m_data, m->m_len, uio);
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|
|
DBGL4(L4_TELDBG, "i4btelread", ("i4btel%d, mbuf (%d bytes), uiomove %d!\n", unit, m->m_len, error));
|
|
}
|
|
else
|
|
{
|
|
DBGL4(L4_TELDBG, "i4btelread", ("i4btel%d, empty mbuf from queue!\n", unit));
|
|
error = EIO;
|
|
}
|
|
|
|
if(m)
|
|
i4b_Bfreembuf(m);
|
|
|
|
splx(s);
|
|
}
|
|
else if(func == FUNCDIAL)
|
|
{
|
|
while((sc->result == 0) && (sc->devstate & ST_ISOPEN))
|
|
{
|
|
sc->devstate |= ST_RDWAITDATA;
|
|
|
|
if((error = tsleep((caddr_t) &sc->result,
|
|
TTIPRI | PCATCH,
|
|
"rtel1", 0 )) != 0)
|
|
{
|
|
sc->devstate &= ~ST_RDWAITDATA;
|
|
return(error);
|
|
}
|
|
}
|
|
|
|
if(!(sc->devstate & ST_ISOPEN))
|
|
{
|
|
return(EIO);
|
|
}
|
|
|
|
s = splimp();
|
|
|
|
if(sc->result != 0)
|
|
{
|
|
error = uiomove(&sc->result, 1, uio);
|
|
sc->result = 0;
|
|
}
|
|
else
|
|
{
|
|
error = EIO;
|
|
}
|
|
|
|
splx(s);
|
|
}
|
|
return(error);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* write to tel device
|
|
*---------------------------------------------------------------------------*/
|
|
PDEVSTATIC int
|
|
i4btelwrite(dev_t dev, struct uio * uio, int ioflag)
|
|
{
|
|
int unit = UNIT(dev);
|
|
int func = FUNC(dev);
|
|
struct mbuf *m;
|
|
int s;
|
|
int error = 0;
|
|
tel_sc_t *sc = &tel_sc[unit][func];
|
|
|
|
if(!(sc->devstate & ST_ISOPEN))
|
|
{
|
|
return(EIO);
|
|
}
|
|
|
|
if(func == FUNCTEL)
|
|
{
|
|
if(!(sc->devstate & ST_CONNECTED))
|
|
return(EIO);
|
|
|
|
while((IF_QFULL(sc->isdn_linktab->tx_queue)) &&
|
|
(sc->devstate & ST_ISOPEN))
|
|
{
|
|
sc->devstate |= ST_WRWAITEMPTY;
|
|
|
|
if((error = tsleep((caddr_t) &sc->isdn_linktab->tx_queue,
|
|
TTIPRI | PCATCH, "wtel", 0)) != 0)
|
|
{
|
|
sc->devstate &= ~ST_WRWAITEMPTY;
|
|
return(error);
|
|
}
|
|
}
|
|
|
|
if(!(sc->devstate & ST_ISOPEN))
|
|
{
|
|
return(EIO);
|
|
}
|
|
|
|
if(!(sc->devstate & ST_CONNECTED))
|
|
{
|
|
return(EIO);
|
|
}
|
|
|
|
s = splimp();
|
|
|
|
if((m = i4b_Bgetmbuf(BCH_MAX_DATALEN)) != NULL)
|
|
{
|
|
register int i;
|
|
|
|
m->m_len = min(BCH_MAX_DATALEN, uio->uio_resid);
|
|
|
|
error = uiomove(m->m_data, m->m_len, uio);
|
|
|
|
for(i = 0; i < m->m_len; i++)
|
|
{
|
|
/* convert if necessary */
|
|
if(sc->wcvttab)
|
|
mtod(m,u_char *)[i] = sc->wcvttab[mtod(m,u_char *)[i]];
|
|
|
|
/* always reverse bitorder to line */
|
|
mtod(m,u_char *)[i] = bitreverse[mtod(m,u_char *)[i]];
|
|
}
|
|
|
|
if(IF_QFULL(sc->isdn_linktab->tx_queue))
|
|
{
|
|
m_freem(m);
|
|
}
|
|
else
|
|
{
|
|
IF_ENQUEUE(sc->isdn_linktab->tx_queue, m);
|
|
}
|
|
|
|
(*sc->isdn_linktab->bch_tx_start)(sc->isdn_linktab->unit, sc->isdn_linktab->channel);
|
|
}
|
|
|
|
splx(s);
|
|
}
|
|
else if(func == FUNCDIAL)
|
|
{
|
|
#define CMDBUFSIZ 80
|
|
char cmdbuf[CMDBUFSIZ];
|
|
int len = min(CMDBUFSIZ-1, uio->uio_resid);
|
|
|
|
error = uiomove(cmdbuf, len, uio);
|
|
|
|
if(cmdbuf[0] == CMD_DIAL)
|
|
{
|
|
i4b_l4_dialoutnumber(BDRV_TEL, unit, len-1, &cmdbuf[1]);
|
|
}
|
|
else if(cmdbuf[0] == CMD_HUP)
|
|
{
|
|
i4b_l4_drvrdisc(BDRV_TEL, unit);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
error = EIO;
|
|
}
|
|
|
|
return(error);
|
|
}
|
|
|
|
#ifdef OS_USES_POLL
|
|
/*---------------------------------------------------------------------------*
|
|
* device driver poll
|
|
*---------------------------------------------------------------------------*/
|
|
PDEVSTATIC int
|
|
i4btelpoll(dev_t dev, int events, struct proc *p)
|
|
{
|
|
int revents = 0; /* Events we found */
|
|
int s;
|
|
int unit = UNIT(dev);
|
|
int func = FUNC(dev);
|
|
|
|
tel_sc_t *sc = &tel_sc[unit][func];
|
|
|
|
s = splhigh();
|
|
|
|
if(!(sc->devstate & ST_ISOPEN))
|
|
{
|
|
DBGL4(L4_TELDBG, "i4btelpoll", ("i4btel%d, !ST_ISOPEN\n", unit));
|
|
splx(s);
|
|
return(0);
|
|
}
|
|
|
|
if(func == FUNCTEL)
|
|
{
|
|
/*
|
|
* Writes are OK if we are connected and the
|
|
* transmit queue can take them
|
|
*/
|
|
|
|
if((events & (POLLOUT|POLLWRNORM)) &&
|
|
(sc->devstate & ST_CONNECTED) &&
|
|
(sc->isdn_linktab != NULL) &&
|
|
(!IF_QFULL(sc->isdn_linktab->tx_queue)))
|
|
{
|
|
DBGL4(L4_TELDBG, "i4btelpoll", ("i4btel%d, POLLOUT\n", unit));
|
|
revents |= (events & (POLLOUT|POLLWRNORM));
|
|
}
|
|
|
|
/* ... while reads are OK if we have any data */
|
|
|
|
if((events & (POLLIN|POLLRDNORM)) &&
|
|
(sc->devstate & ST_CONNECTED) &&
|
|
(sc->isdn_linktab != NULL) &&
|
|
(!IF_QEMPTY(sc->isdn_linktab->rx_queue)))
|
|
{
|
|
DBGL4(L4_TELDBG, "i4btelpoll", ("i4btel%d, POLLIN\n", unit));
|
|
revents |= (events & (POLLIN|POLLRDNORM));
|
|
}
|
|
|
|
if(revents == 0)
|
|
{
|
|
DBGL4(L4_TELDBG, "i4btelpoll", ("i4btel%d, selrecord\n", unit));
|
|
selrecord(p, &sc->selp);
|
|
}
|
|
}
|
|
else if(func == FUNCDIAL)
|
|
{
|
|
if(events & (POLLOUT|POLLWRNORM))
|
|
{
|
|
DBGL4(L4_TELDBG, "i4btelpoll", ("i4bteld%d, POLLOUT\n", unit));
|
|
revents |= (events & (POLLOUT|POLLWRNORM));
|
|
}
|
|
|
|
if(events & (POLLIN|POLLRDNORM))
|
|
{
|
|
DBGL4(L4_TELDBG, "i4btelpoll", ("i4bteld%d, POLLIN, result = %d\n", unit, sc->result));
|
|
if(sc->result != 0)
|
|
revents |= (events & (POLLIN|POLLRDNORM));
|
|
}
|
|
|
|
if(revents == 0)
|
|
{
|
|
DBGL4(L4_TELDBG, "i4btelpoll", ("i4bteld%d, selrecord\n", unit));
|
|
selrecord(p, &sc->selp);
|
|
}
|
|
}
|
|
splx(s);
|
|
return(revents);
|
|
}
|
|
|
|
#else /* OS_USES_POLL */
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* device driver select
|
|
*---------------------------------------------------------------------------*/
|
|
PDEVSTATIC int
|
|
i4btelsel(dev_t dev, int rw, struct proc *p)
|
|
{
|
|
int s;
|
|
int unit = UNIT(dev);
|
|
int func = FUNC(dev);
|
|
|
|
tel_sc_t *sc = &tel_sc[unit][func];
|
|
|
|
s = splhigh();
|
|
|
|
if (!(sc->devstate & ST_ISOPEN))
|
|
{
|
|
DBGL4(L4_TELDBG, "i4btelsel", ("i4btel%d, !ST_ISOPEN\n", unit));
|
|
splx(s);
|
|
return(0);
|
|
}
|
|
|
|
if (func == FUNCTEL)
|
|
{
|
|
/* Don't even bother if we're not connected */
|
|
if (!(sc->devstate & ST_CONNECTED) || sc->isdn_linktab == NULL)
|
|
{
|
|
splx(s);
|
|
return 0;
|
|
}
|
|
|
|
if (rw == FREAD)
|
|
{
|
|
if (!IF_QEMPTY(sc->isdn_linktab->rx_queue))
|
|
{
|
|
DBGL4(L4_TELDBG, "i4btelsel", ("i4btel%d, FREAD\n", unit));
|
|
splx(s);
|
|
return 1;
|
|
}
|
|
}
|
|
else if (rw == FWRITE)
|
|
{
|
|
if (!IF_QFULL(sc->isdn_linktab->tx_queue))
|
|
{
|
|
DBGL4(L4_TELDBG, "i4btelsel", ("i4btel%d, FWRITE\n", unit));
|
|
splx(s);
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
else if (func == FUNCDIAL)
|
|
{
|
|
if (rw == FWRITE)
|
|
{
|
|
DBGL4(L4_TELDBG, "i4btelsel", ("i4bteld%d, FWRITE\n", unit));
|
|
splx(s);
|
|
return 1;
|
|
}
|
|
|
|
if (rw == FREAD)
|
|
{
|
|
DBGL4(L4_TELDBG, "i4btelsel", ("i4bteld%d, FREAD, result = %d\n", unit, sc->result));
|
|
if (sc->result != 0)
|
|
{
|
|
splx(s);
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
DBGL4(L4_TELDBG, "i4btelsel", ("i4bteld%d, selrecord\n", unit));
|
|
selrecord(p, &sc->selp);
|
|
splx(s);
|
|
return 0;
|
|
}
|
|
|
|
#endif /* OS_USES_POLL */
|
|
|
|
/*===========================================================================*
|
|
* ISDN INTERFACE ROUTINES
|
|
*===========================================================================*/
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* this routine is called from L4 handler at connect time
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
tel_connect(int unit, void *cdp)
|
|
{
|
|
tel_sc_t *sc = &tel_sc[unit][FUNCTEL];
|
|
|
|
/* audio device */
|
|
|
|
sc->cdp = (call_desc_t *)cdp;
|
|
|
|
sc->devstate |= ST_CONNECTED;
|
|
|
|
/* dialer device */
|
|
|
|
sc = &tel_sc[unit][FUNCDIAL];
|
|
|
|
if(sc->devstate == ST_ISOPEN)
|
|
{
|
|
sc->result = RSP_CONN;
|
|
|
|
if(sc->devstate & ST_RDWAITDATA)
|
|
{
|
|
sc->devstate &= ~ST_RDWAITDATA;
|
|
wakeup((caddr_t) &sc->result);
|
|
}
|
|
selwakeup(&sc->selp);
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* this routine is called from L4 handler at disconnect time
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
tel_disconnect(int unit, void *cdp)
|
|
{
|
|
/* call_desc_t *cd = (call_desc_t *)cdp; */
|
|
|
|
tel_sc_t *sc = &tel_sc[unit][FUNCTEL];
|
|
|
|
/* audio device */
|
|
|
|
sc->devstate &= ~ST_CONNECTED;
|
|
|
|
if(sc->devstate & ST_RDWAITDATA)
|
|
{
|
|
sc->devstate &= ~ST_RDWAITDATA;
|
|
wakeup((caddr_t) &sc->isdn_linktab->rx_queue);
|
|
}
|
|
|
|
if(sc->devstate & ST_WRWAITEMPTY)
|
|
{
|
|
sc->devstate &= ~ST_WRWAITEMPTY;
|
|
wakeup((caddr_t) &sc->isdn_linktab->tx_queue);
|
|
}
|
|
|
|
/* dialer device */
|
|
|
|
sc = &tel_sc[unit][FUNCDIAL];
|
|
|
|
if(sc->devstate == ST_ISOPEN)
|
|
{
|
|
sc->result = RSP_HUP;
|
|
|
|
if(sc->devstate & ST_RDWAITDATA)
|
|
{
|
|
sc->devstate &= ~ST_RDWAITDATA;
|
|
wakeup((caddr_t) &sc->result);
|
|
}
|
|
selwakeup(&sc->selp);
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* feedback from daemon in case of dial problems
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
tel_dialresponse(int unit, int status, cause_t cause)
|
|
{
|
|
tel_sc_t *sc = &tel_sc[unit][FUNCDIAL];
|
|
|
|
DBGL4(L4_TELDBG, "tel_dialresponse", ("i4btel%d, status=%d, cause=0x%4x\n", unit, status, cause));
|
|
|
|
if((sc->devstate == ST_ISOPEN) && status)
|
|
{
|
|
sc->result = RSP_NOA;
|
|
|
|
if(sc->devstate & ST_RDWAITDATA)
|
|
{
|
|
sc->devstate &= ~ST_RDWAITDATA;
|
|
wakeup((caddr_t) &sc->result);
|
|
}
|
|
selwakeup(&sc->selp);
|
|
}
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* interface up/down
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
tel_updown(int unit, int updown)
|
|
{
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* this routine is called from the HSCX interrupt handler
|
|
* when a new frame (mbuf) has been received and was put on
|
|
* the rx queue.
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
tel_rx_data_rdy(int unit)
|
|
{
|
|
tel_sc_t *sc = &tel_sc[unit][FUNCTEL];
|
|
|
|
if(sc->devstate & ST_RDWAITDATA)
|
|
{
|
|
sc->devstate &= ~ST_RDWAITDATA;
|
|
wakeup((caddr_t) &sc->isdn_linktab->rx_queue);
|
|
}
|
|
selwakeup(&sc->selp);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* this routine is called from the HSCX interrupt handler
|
|
* when the last frame has been sent out and there is no
|
|
* further frame (mbuf) in the tx queue.
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
tel_tx_queue_empty(int unit)
|
|
{
|
|
tel_sc_t *sc = &tel_sc[unit][FUNCTEL];
|
|
|
|
if(sc->devstate & ST_WRWAITEMPTY)
|
|
{
|
|
sc->devstate &= ~ST_WRWAITEMPTY;
|
|
wakeup((caddr_t) &sc->isdn_linktab->tx_queue);
|
|
}
|
|
selwakeup(&sc->selp);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* this routine is called from the HSCX interrupt handler
|
|
* each time a packet is received or transmitted.
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
tel_activity(int unit, int rxtx)
|
|
{
|
|
if(tel_sc[unit][FUNCTEL].cdp)
|
|
tel_sc[unit][FUNCTEL].cdp->last_active_time = SECOND;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* return this drivers linktab address
|
|
*---------------------------------------------------------------------------*/
|
|
drvr_link_t *
|
|
tel_ret_linktab(int unit)
|
|
{
|
|
tel_sc_t *sc = &tel_sc[unit][FUNCTEL];
|
|
|
|
tel_init_linktab(unit);
|
|
return(&sc->drvr_linktab);
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* setup the isdn_linktab for this driver
|
|
*---------------------------------------------------------------------------*/
|
|
void
|
|
tel_set_linktab(int unit, isdn_link_t *ilt)
|
|
{
|
|
tel_sc_t *sc = &tel_sc[unit][FUNCTEL];
|
|
sc->isdn_linktab = ilt;
|
|
}
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* initialize this drivers linktab
|
|
*---------------------------------------------------------------------------*/
|
|
static void
|
|
tel_init_linktab(int unit)
|
|
{
|
|
tel_sc_t *sc = &tel_sc[unit][FUNCTEL];
|
|
|
|
sc->drvr_linktab.unit = unit;
|
|
sc->drvr_linktab.bch_rx_data_ready = tel_rx_data_rdy;
|
|
sc->drvr_linktab.bch_tx_queue_empty = tel_tx_queue_empty;
|
|
sc->drvr_linktab.bch_activity = tel_activity;
|
|
sc->drvr_linktab.line_connected = tel_connect;
|
|
sc->drvr_linktab.line_disconnected = tel_disconnect;
|
|
sc->drvr_linktab.dial_response = tel_dialresponse;
|
|
sc->drvr_linktab.updown_ind = tel_updown;
|
|
}
|
|
|
|
/*===========================================================================*
|
|
* AUDIO FORMAT CONVERSION (produced by running g711conv)
|
|
*===========================================================================*/
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* A-law to u-law conversion
|
|
*---------------------------------------------------------------------------*/
|
|
static unsigned char a2u_tab[256] = {
|
|
/* 00 */ 0x2a, 0x2b, 0x28, 0x29, 0x2e, 0x2f, 0x2c, 0x2d,
|
|
/* 08 */ 0x22, 0x23, 0x20, 0x21, 0x26, 0x27, 0x24, 0x25,
|
|
/* 10 */ 0x39, 0x3a, 0x37, 0x38, 0x3d, 0x3e, 0x3b, 0x3c,
|
|
/* 18 */ 0x31, 0x32, 0x30, 0x30, 0x35, 0x36, 0x33, 0x34,
|
|
/* 20 */ 0x0a, 0x0b, 0x08, 0x09, 0x0e, 0x0f, 0x0c, 0x0d,
|
|
/* 28 */ 0x02, 0x03, 0x00, 0x01, 0x06, 0x07, 0x04, 0x05,
|
|
/* 30 */ 0x1a, 0x1b, 0x18, 0x19, 0x1e, 0x1f, 0x1c, 0x1d,
|
|
/* 38 */ 0x12, 0x13, 0x10, 0x11, 0x16, 0x17, 0x14, 0x15,
|
|
/* 40 */ 0x62, 0x63, 0x60, 0x61, 0x66, 0x67, 0x64, 0x65,
|
|
/* 48 */ 0x5d, 0x5d, 0x5c, 0x5c, 0x5f, 0x5f, 0x5e, 0x5e,
|
|
/* 50 */ 0x74, 0x76, 0x70, 0x72, 0x7c, 0x7e, 0x78, 0x7a,
|
|
/* 58 */ 0x6a, 0x6b, 0x68, 0x69, 0x6e, 0x6f, 0x6c, 0x6d,
|
|
/* 60 */ 0x48, 0x49, 0x46, 0x47, 0x4c, 0x4d, 0x4a, 0x4b,
|
|
/* 68 */ 0x40, 0x41, 0x3f, 0x3f, 0x44, 0x45, 0x42, 0x43,
|
|
/* 70 */ 0x56, 0x57, 0x54, 0x55, 0x5a, 0x5b, 0x58, 0x59,
|
|
/* 78 */ 0x4f, 0x4f, 0x4e, 0x4e, 0x52, 0x53, 0x50, 0x51,
|
|
/* 80 */ 0xaa, 0xab, 0xa8, 0xa9, 0xae, 0xaf, 0xac, 0xad,
|
|
/* 88 */ 0xa2, 0xa3, 0xa0, 0xa1, 0xa6, 0xa7, 0xa4, 0xa5,
|
|
/* 90 */ 0xb9, 0xba, 0xb7, 0xb8, 0xbd, 0xbe, 0xbb, 0xbc,
|
|
/* 98 */ 0xb1, 0xb2, 0xb0, 0xb0, 0xb5, 0xb6, 0xb3, 0xb4,
|
|
/* a0 */ 0x8a, 0x8b, 0x88, 0x89, 0x8e, 0x8f, 0x8c, 0x8d,
|
|
/* a8 */ 0x82, 0x83, 0x80, 0x81, 0x86, 0x87, 0x84, 0x85,
|
|
/* b0 */ 0x9a, 0x9b, 0x98, 0x99, 0x9e, 0x9f, 0x9c, 0x9d,
|
|
/* b8 */ 0x92, 0x93, 0x90, 0x91, 0x96, 0x97, 0x94, 0x95,
|
|
/* c0 */ 0xe2, 0xe3, 0xe0, 0xe1, 0xe6, 0xe7, 0xe4, 0xe5,
|
|
/* c8 */ 0xdd, 0xdd, 0xdc, 0xdc, 0xdf, 0xdf, 0xde, 0xde,
|
|
/* d0 */ 0xf4, 0xf6, 0xf0, 0xf2, 0xfc, 0xfe, 0xf8, 0xfa,
|
|
/* d8 */ 0xea, 0xeb, 0xe8, 0xe9, 0xee, 0xef, 0xec, 0xed,
|
|
/* e0 */ 0xc8, 0xc9, 0xc6, 0xc7, 0xcc, 0xcd, 0xca, 0xcb,
|
|
/* e8 */ 0xc0, 0xc1, 0xbf, 0xbf, 0xc4, 0xc5, 0xc2, 0xc3,
|
|
/* f0 */ 0xd6, 0xd7, 0xd4, 0xd5, 0xda, 0xdb, 0xd8, 0xd9,
|
|
/* f8 */ 0xcf, 0xcf, 0xce, 0xce, 0xd2, 0xd3, 0xd0, 0xd1
|
|
};
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* u-law to A-law conversion
|
|
*---------------------------------------------------------------------------*/
|
|
static unsigned char u2a_tab[256] = {
|
|
/* 00 */ 0x2a, 0x2b, 0x28, 0x29, 0x2e, 0x2f, 0x2c, 0x2d,
|
|
/* 08 */ 0x22, 0x23, 0x20, 0x21, 0x26, 0x27, 0x24, 0x25,
|
|
/* 10 */ 0x3a, 0x3b, 0x38, 0x39, 0x3e, 0x3f, 0x3c, 0x3d,
|
|
/* 18 */ 0x32, 0x33, 0x30, 0x31, 0x36, 0x37, 0x34, 0x35,
|
|
/* 20 */ 0x0a, 0x0b, 0x08, 0x09, 0x0e, 0x0f, 0x0c, 0x0d,
|
|
/* 28 */ 0x02, 0x03, 0x00, 0x01, 0x06, 0x07, 0x04, 0x05,
|
|
/* 30 */ 0x1b, 0x18, 0x19, 0x1e, 0x1f, 0x1c, 0x1d, 0x12,
|
|
/* 38 */ 0x13, 0x10, 0x11, 0x16, 0x17, 0x14, 0x15, 0x6a,
|
|
/* 40 */ 0x68, 0x69, 0x6e, 0x6f, 0x6c, 0x6d, 0x62, 0x63,
|
|
/* 48 */ 0x60, 0x61, 0x66, 0x67, 0x64, 0x65, 0x7a, 0x78,
|
|
/* 50 */ 0x7e, 0x7f, 0x7c, 0x7d, 0x72, 0x73, 0x70, 0x71,
|
|
/* 58 */ 0x76, 0x77, 0x74, 0x75, 0x4b, 0x49, 0x4f, 0x4d,
|
|
/* 60 */ 0x42, 0x43, 0x40, 0x41, 0x46, 0x47, 0x44, 0x45,
|
|
/* 68 */ 0x5a, 0x5b, 0x58, 0x59, 0x5e, 0x5f, 0x5c, 0x5d,
|
|
/* 70 */ 0x52, 0x52, 0x53, 0x53, 0x50, 0x50, 0x51, 0x51,
|
|
/* 78 */ 0x56, 0x56, 0x57, 0x57, 0x54, 0x54, 0x55, 0x55,
|
|
/* 80 */ 0xaa, 0xab, 0xa8, 0xa9, 0xae, 0xaf, 0xac, 0xad,
|
|
/* 88 */ 0xa2, 0xa3, 0xa0, 0xa1, 0xa6, 0xa7, 0xa4, 0xa5,
|
|
/* 90 */ 0xba, 0xbb, 0xb8, 0xb9, 0xbe, 0xbf, 0xbc, 0xbd,
|
|
/* 98 */ 0xb2, 0xb3, 0xb0, 0xb1, 0xb6, 0xb7, 0xb4, 0xb5,
|
|
/* a0 */ 0x8a, 0x8b, 0x88, 0x89, 0x8e, 0x8f, 0x8c, 0x8d,
|
|
/* a8 */ 0x82, 0x83, 0x80, 0x81, 0x86, 0x87, 0x84, 0x85,
|
|
/* b0 */ 0x9b, 0x98, 0x99, 0x9e, 0x9f, 0x9c, 0x9d, 0x92,
|
|
/* b8 */ 0x93, 0x90, 0x91, 0x96, 0x97, 0x94, 0x95, 0xea,
|
|
/* c0 */ 0xe8, 0xe9, 0xee, 0xef, 0xec, 0xed, 0xe2, 0xe3,
|
|
/* c8 */ 0xe0, 0xe1, 0xe6, 0xe7, 0xe4, 0xe5, 0xfa, 0xf8,
|
|
/* d0 */ 0xfe, 0xff, 0xfc, 0xfd, 0xf2, 0xf3, 0xf0, 0xf1,
|
|
/* d8 */ 0xf6, 0xf7, 0xf4, 0xf5, 0xcb, 0xc9, 0xcf, 0xcd,
|
|
/* e0 */ 0xc2, 0xc3, 0xc0, 0xc1, 0xc6, 0xc7, 0xc4, 0xc5,
|
|
/* e8 */ 0xda, 0xdb, 0xd8, 0xd9, 0xde, 0xdf, 0xdc, 0xdd,
|
|
/* f0 */ 0xd2, 0xd2, 0xd3, 0xd3, 0xd0, 0xd0, 0xd1, 0xd1,
|
|
/* f8 */ 0xd6, 0xd6, 0xd7, 0xd7, 0xd4, 0xd4, 0xd5, 0xd5
|
|
};
|
|
|
|
/*---------------------------------------------------------------------------*
|
|
* reverse bits in a byte
|
|
*---------------------------------------------------------------------------*/
|
|
static unsigned char bitreverse[256] = {
|
|
/* 00 */ 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
|
|
/* 08 */ 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
|
|
/* 10 */ 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
|
|
/* 18 */ 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
|
|
/* 20 */ 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
|
|
/* 28 */ 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
|
|
/* 30 */ 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
|
|
/* 38 */ 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
|
|
/* 40 */ 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
|
|
/* 48 */ 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
|
|
/* 50 */ 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
|
|
/* 58 */ 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
|
|
/* 60 */ 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
|
|
/* 68 */ 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
|
|
/* 70 */ 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
|
|
/* 78 */ 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
|
|
/* 80 */ 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
|
|
/* 88 */ 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
|
|
/* 90 */ 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
|
|
/* 98 */ 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
|
|
/* a0 */ 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
|
|
/* a8 */ 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
|
|
/* b0 */ 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
|
|
/* b8 */ 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
|
|
/* c0 */ 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
|
|
/* c8 */ 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
|
|
/* d0 */ 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
|
|
/* d8 */ 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
|
|
/* e0 */ 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
|
|
/* e8 */ 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
|
|
/* f0 */ 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
|
|
/* f8 */ 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
|
|
};
|
|
|
|
/*===========================================================================*/
|
|
|
|
#endif /* NI4BTEL > 0 */
|