506 lines
19 KiB
C
506 lines
19 KiB
C
/* $Id: isdnif.h,v 1.43.2.2 2004/01/12 23:08:35 keil Exp $
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*
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* Linux ISDN subsystem
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* Definition of the interface between the subsystem and its low-level drivers.
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*
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* Copyright 1994,95,96 by Fritz Elfert (fritz@isdn4linux.de)
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* Copyright 1995,96 Thinking Objects Software GmbH Wuerzburg
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*
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* This software may be used and distributed according to the terms
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* of the GNU General Public License, incorporated herein by reference.
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*
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*/
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#ifndef __ISDNIF_H__
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#define __ISDNIF_H__
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#include <linux/skbuff.h>
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#include <uapi/linux/isdnif.h>
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/***************************************************************************/
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/* Extensions made by Werner Cornelius (werner@ikt.de) */
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/* */
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/* The proceed command holds a incoming call in a state to leave processes */
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/* enough time to check whether ist should be accepted. */
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/* The PROT_IO Command extends the interface to make protocol dependent */
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/* features available (call diversion, call waiting...). */
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/* */
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/* The PROT_IO Command is executed with the desired driver id and the arg */
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/* parameter coded as follows: */
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/* The lower 8 bits of arg contain the desired protocol from ISDN_PTYPE */
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/* definitions. The upper 24 bits represent the protocol specific cmd/stat.*/
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/* Any additional data is protocol and command specific. */
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/* This mechanism also applies to the statcallb callback STAT_PROT. */
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/* */
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/* This suggested extension permits an easy expansion of protocol specific */
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/* handling. Extensions may be added at any time without changing the HL */
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/* driver code and not getting conflicts without certifications. */
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/* The well known CAPI 2.0 interface handles such extensions in a similar */
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/* way. Perhaps a protocol specific module may be added and separately */
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/* loaded and linked to the basic isdn module for handling. */
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/***************************************************************************/
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/*****************/
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/* DSS1 commands */
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/*****************/
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#define DSS1_CMD_INVOKE ((0x00 << 8) | ISDN_PTYPE_EURO) /* invoke a supplementary service */
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#define DSS1_CMD_INVOKE_ABORT ((0x01 << 8) | ISDN_PTYPE_EURO) /* abort a invoke cmd */
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/*******************************/
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/* DSS1 Status callback values */
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/*******************************/
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#define DSS1_STAT_INVOKE_RES ((0x80 << 8) | ISDN_PTYPE_EURO) /* Result for invocation */
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#define DSS1_STAT_INVOKE_ERR ((0x81 << 8) | ISDN_PTYPE_EURO) /* Error Return for invocation */
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#define DSS1_STAT_INVOKE_BRD ((0x82 << 8) | ISDN_PTYPE_EURO) /* Deliver invoke broadcast info */
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/*********************************************************************/
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/* structures for DSS1 commands and callback */
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/* */
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/* An action is invoked by sending a DSS1_CMD_INVOKE. The ll_id, proc*/
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/* timeout, datalen and data fields must be set before calling. */
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/* */
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/* The return value is a positive hl_id value also delivered in the */
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/* hl_id field. A value of zero signals no more left hl_id capacitys.*/
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/* A negative return value signals errors in LL. So if the return */
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/* value is <= 0 no action in LL will be taken -> request ignored */
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/* */
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/* The timeout field must be filled with a positive value specifying */
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/* the amount of time the INVOKED process waits for a reaction from */
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/* the network. */
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/* If a response (either error or result) is received during this */
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/* intervall, a reporting callback is initiated and the process will */
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/* be deleted, the hl identifier will be freed. */
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/* If no response is received during the specified intervall, a error*/
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/* callback is initiated with timeout set to -1 and a datalen set */
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/* to 0. */
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/* If timeout is set to a value <= 0 during INVOCATION the process is*/
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/* immediately deleted after sending the data. No callback occurs ! */
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/* */
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/* A currently waiting process may be aborted with INVOKE_ABORT. No */
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/* callback will occur when a process has been aborted. */
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/* */
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/* Broadcast invoke frames from the network are reported via the */
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/* STAT_INVOKE_BRD callback. The ll_id is set to 0, the other fields */
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/* are supplied by the network and not by the HL. */
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/*********************************************************************/
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/*****************/
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/* NI1 commands */
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/*****************/
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#define NI1_CMD_INVOKE ((0x00 << 8) | ISDN_PTYPE_NI1) /* invoke a supplementary service */
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#define NI1_CMD_INVOKE_ABORT ((0x01 << 8) | ISDN_PTYPE_NI1) /* abort a invoke cmd */
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/*******************************/
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/* NI1 Status callback values */
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/*******************************/
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#define NI1_STAT_INVOKE_RES ((0x80 << 8) | ISDN_PTYPE_NI1) /* Result for invocation */
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#define NI1_STAT_INVOKE_ERR ((0x81 << 8) | ISDN_PTYPE_NI1) /* Error Return for invocation */
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#define NI1_STAT_INVOKE_BRD ((0x82 << 8) | ISDN_PTYPE_NI1) /* Deliver invoke broadcast info */
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typedef struct
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{ ulong ll_id; /* ID supplied by LL when executing */
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/* a command and returned by HL for */
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/* INVOKE_RES and INVOKE_ERR */
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int hl_id; /* ID supplied by HL when called */
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/* for executing a cmd and delivered */
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/* for results and errors */
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/* must be supplied by LL when aborting*/
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int proc; /* invoke procedure used by CMD_INVOKE */
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/* returned by callback and broadcast */
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int timeout; /* timeout for INVOKE CMD in ms */
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/* -1 in stat callback when timed out */
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/* error value when error callback */
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int datalen; /* length of cmd or stat data */
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u_char *data;/* pointer to data delivered or send */
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} isdn_cmd_stat;
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/*
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* Commands from linklevel to lowlevel
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*
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*/
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#define ISDN_CMD_IOCTL 0 /* Perform ioctl */
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#define ISDN_CMD_DIAL 1 /* Dial out */
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#define ISDN_CMD_ACCEPTD 2 /* Accept an incoming call on D-Chan. */
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#define ISDN_CMD_ACCEPTB 3 /* Request B-Channel connect. */
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#define ISDN_CMD_HANGUP 4 /* Hangup */
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#define ISDN_CMD_CLREAZ 5 /* Clear EAZ(s) of channel */
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#define ISDN_CMD_SETEAZ 6 /* Set EAZ(s) of channel */
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#define ISDN_CMD_GETEAZ 7 /* Get EAZ(s) of channel */
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#define ISDN_CMD_SETSIL 8 /* Set Service-Indicator-List of channel */
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#define ISDN_CMD_GETSIL 9 /* Get Service-Indicator-List of channel */
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#define ISDN_CMD_SETL2 10 /* Set B-Chan. Layer2-Parameter */
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#define ISDN_CMD_GETL2 11 /* Get B-Chan. Layer2-Parameter */
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#define ISDN_CMD_SETL3 12 /* Set B-Chan. Layer3-Parameter */
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#define ISDN_CMD_GETL3 13 /* Get B-Chan. Layer3-Parameter */
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// #define ISDN_CMD_LOCK 14 /* Signal usage by upper levels */
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// #define ISDN_CMD_UNLOCK 15 /* Release usage-lock */
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#define ISDN_CMD_SUSPEND 16 /* Suspend connection */
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#define ISDN_CMD_RESUME 17 /* Resume connection */
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#define ISDN_CMD_PROCEED 18 /* Proceed with call establishment */
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#define ISDN_CMD_ALERT 19 /* Alert after Proceeding */
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#define ISDN_CMD_REDIR 20 /* Redir a incoming call */
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#define ISDN_CMD_PROT_IO 21 /* Protocol specific commands */
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#define CAPI_PUT_MESSAGE 22 /* CAPI message send down or up */
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#define ISDN_CMD_FAXCMD 23 /* FAX commands to HL-driver */
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#define ISDN_CMD_AUDIO 24 /* DSP, DTMF, ... settings */
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/*
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* Status-Values delivered from lowlevel to linklevel via
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* statcallb().
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*
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*/
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#define ISDN_STAT_STAVAIL 256 /* Raw status-data available */
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#define ISDN_STAT_ICALL 257 /* Incoming call detected */
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#define ISDN_STAT_RUN 258 /* Signal protocol-code is running */
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#define ISDN_STAT_STOP 259 /* Signal halt of protocol-code */
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#define ISDN_STAT_DCONN 260 /* Signal D-Channel connect */
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#define ISDN_STAT_BCONN 261 /* Signal B-Channel connect */
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#define ISDN_STAT_DHUP 262 /* Signal D-Channel disconnect */
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#define ISDN_STAT_BHUP 263 /* Signal B-Channel disconnect */
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#define ISDN_STAT_CINF 264 /* Charge-Info */
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#define ISDN_STAT_LOAD 265 /* Signal new lowlevel-driver is loaded */
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#define ISDN_STAT_UNLOAD 266 /* Signal unload of lowlevel-driver */
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#define ISDN_STAT_BSENT 267 /* Signal packet sent */
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#define ISDN_STAT_NODCH 268 /* Signal no D-Channel */
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#define ISDN_STAT_ADDCH 269 /* Add more Channels */
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#define ISDN_STAT_CAUSE 270 /* Cause-Message */
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#define ISDN_STAT_ICALLW 271 /* Incoming call without B-chan waiting */
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#define ISDN_STAT_REDIR 272 /* Redir result */
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#define ISDN_STAT_PROT 273 /* protocol IO specific callback */
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#define ISDN_STAT_DISPLAY 274 /* deliver a received display message */
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#define ISDN_STAT_L1ERR 275 /* Signal Layer-1 Error */
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#define ISDN_STAT_FAXIND 276 /* FAX indications from HL-driver */
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#define ISDN_STAT_AUDIO 277 /* DTMF, DSP indications */
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#define ISDN_STAT_DISCH 278 /* Disable/Enable channel usage */
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/*
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* Audio commands
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*/
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#define ISDN_AUDIO_SETDD 0 /* Set DTMF detection */
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#define ISDN_AUDIO_DTMF 1 /* Rx/Tx DTMF */
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/*
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* Values for errcode field
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*/
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#define ISDN_STAT_L1ERR_SEND 1
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#define ISDN_STAT_L1ERR_RECV 2
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/*
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* Values for feature-field of interface-struct.
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*/
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/* Layer 2 */
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#define ISDN_FEATURE_L2_X75I (0x0001 << ISDN_PROTO_L2_X75I)
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#define ISDN_FEATURE_L2_X75UI (0x0001 << ISDN_PROTO_L2_X75UI)
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#define ISDN_FEATURE_L2_X75BUI (0x0001 << ISDN_PROTO_L2_X75BUI)
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#define ISDN_FEATURE_L2_HDLC (0x0001 << ISDN_PROTO_L2_HDLC)
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#define ISDN_FEATURE_L2_TRANS (0x0001 << ISDN_PROTO_L2_TRANS)
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#define ISDN_FEATURE_L2_X25DTE (0x0001 << ISDN_PROTO_L2_X25DTE)
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#define ISDN_FEATURE_L2_X25DCE (0x0001 << ISDN_PROTO_L2_X25DCE)
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#define ISDN_FEATURE_L2_V11096 (0x0001 << ISDN_PROTO_L2_V11096)
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#define ISDN_FEATURE_L2_V11019 (0x0001 << ISDN_PROTO_L2_V11019)
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#define ISDN_FEATURE_L2_V11038 (0x0001 << ISDN_PROTO_L2_V11038)
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#define ISDN_FEATURE_L2_MODEM (0x0001 << ISDN_PROTO_L2_MODEM)
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#define ISDN_FEATURE_L2_FAX (0x0001 << ISDN_PROTO_L2_FAX)
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#define ISDN_FEATURE_L2_HDLC_56K (0x0001 << ISDN_PROTO_L2_HDLC_56K)
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#define ISDN_FEATURE_L2_MASK (0x0FFFF) /* Max. 16 protocols */
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#define ISDN_FEATURE_L2_SHIFT (0)
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/* Layer 3 */
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#define ISDN_FEATURE_L3_TRANS (0x10000 << ISDN_PROTO_L3_TRANS)
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#define ISDN_FEATURE_L3_TRANSDSP (0x10000 << ISDN_PROTO_L3_TRANSDSP)
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#define ISDN_FEATURE_L3_FCLASS2 (0x10000 << ISDN_PROTO_L3_FCLASS2)
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#define ISDN_FEATURE_L3_FCLASS1 (0x10000 << ISDN_PROTO_L3_FCLASS1)
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#define ISDN_FEATURE_L3_MASK (0x0FF0000) /* Max. 8 Protocols */
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#define ISDN_FEATURE_L3_SHIFT (16)
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/* Signaling */
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#define ISDN_FEATURE_P_UNKNOWN (0x1000000 << ISDN_PTYPE_UNKNOWN)
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#define ISDN_FEATURE_P_1TR6 (0x1000000 << ISDN_PTYPE_1TR6)
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#define ISDN_FEATURE_P_EURO (0x1000000 << ISDN_PTYPE_EURO)
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#define ISDN_FEATURE_P_NI1 (0x1000000 << ISDN_PTYPE_NI1)
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#define ISDN_FEATURE_P_MASK (0x0FF000000) /* Max. 8 Protocols */
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#define ISDN_FEATURE_P_SHIFT (24)
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typedef struct setup_parm {
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unsigned char phone[32]; /* Remote Phone-Number */
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unsigned char eazmsn[32]; /* Local EAZ or MSN */
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unsigned char si1; /* Service Indicator 1 */
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unsigned char si2; /* Service Indicator 2 */
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unsigned char plan; /* Numbering plan */
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unsigned char screen; /* Screening info */
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} setup_parm;
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#ifdef CONFIG_ISDN_TTY_FAX
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/* T.30 Fax G3 */
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#define FAXIDLEN 21
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typedef struct T30_s {
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/* session parameters */
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__u8 resolution;
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__u8 rate;
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__u8 width;
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__u8 length;
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__u8 compression;
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__u8 ecm;
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__u8 binary;
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__u8 scantime;
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__u8 id[FAXIDLEN];
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/* additional parameters */
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__u8 phase;
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__u8 direction;
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__u8 code;
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__u8 badlin;
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__u8 badmul;
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__u8 bor;
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__u8 fet;
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__u8 pollid[FAXIDLEN];
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__u8 cq;
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__u8 cr;
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__u8 ctcrty;
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__u8 minsp;
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__u8 phcto;
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__u8 rel;
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__u8 nbc;
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/* remote station parameters */
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__u8 r_resolution;
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__u8 r_rate;
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__u8 r_width;
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__u8 r_length;
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__u8 r_compression;
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__u8 r_ecm;
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__u8 r_binary;
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__u8 r_scantime;
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__u8 r_id[FAXIDLEN];
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__u8 r_code;
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} __packed T30_s;
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#define ISDN_TTY_FAX_CONN_IN 0
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#define ISDN_TTY_FAX_CONN_OUT 1
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#define ISDN_TTY_FAX_FCON 0
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#define ISDN_TTY_FAX_DIS 1
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#define ISDN_TTY_FAX_FTT 2
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#define ISDN_TTY_FAX_MCF 3
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#define ISDN_TTY_FAX_DCS 4
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#define ISDN_TTY_FAX_TRAIN_OK 5
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#define ISDN_TTY_FAX_EOP 6
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#define ISDN_TTY_FAX_EOM 7
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#define ISDN_TTY_FAX_MPS 8
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#define ISDN_TTY_FAX_DTC 9
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#define ISDN_TTY_FAX_RID 10
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#define ISDN_TTY_FAX_HNG 11
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#define ISDN_TTY_FAX_DT 12
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#define ISDN_TTY_FAX_FCON_I 13
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#define ISDN_TTY_FAX_DR 14
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#define ISDN_TTY_FAX_ET 15
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#define ISDN_TTY_FAX_CFR 16
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#define ISDN_TTY_FAX_PTS 17
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#define ISDN_TTY_FAX_SENT 18
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#define ISDN_FAX_PHASE_IDLE 0
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#define ISDN_FAX_PHASE_A 1
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#define ISDN_FAX_PHASE_B 2
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#define ISDN_FAX_PHASE_C 3
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#define ISDN_FAX_PHASE_D 4
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#define ISDN_FAX_PHASE_E 5
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#endif /* TTY_FAX */
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#define ISDN_FAX_CLASS1_FAE 0
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#define ISDN_FAX_CLASS1_FTS 1
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#define ISDN_FAX_CLASS1_FRS 2
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#define ISDN_FAX_CLASS1_FTM 3
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#define ISDN_FAX_CLASS1_FRM 4
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#define ISDN_FAX_CLASS1_FTH 5
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#define ISDN_FAX_CLASS1_FRH 6
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#define ISDN_FAX_CLASS1_CTRL 7
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#define ISDN_FAX_CLASS1_OK 0
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#define ISDN_FAX_CLASS1_CONNECT 1
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#define ISDN_FAX_CLASS1_NOCARR 2
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#define ISDN_FAX_CLASS1_ERROR 3
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#define ISDN_FAX_CLASS1_FCERROR 4
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#define ISDN_FAX_CLASS1_QUERY 5
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typedef struct {
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__u8 cmd;
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__u8 subcmd;
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__u8 para[50];
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} aux_s;
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#define AT_COMMAND 0
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#define AT_EQ_VALUE 1
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#define AT_QUERY 2
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#define AT_EQ_QUERY 3
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/* CAPI structs */
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/* this is compatible to the old union size */
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#define MAX_CAPI_PARA_LEN 50
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typedef struct {
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/* Header */
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__u16 Length;
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__u16 ApplId;
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__u8 Command;
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__u8 Subcommand;
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__u16 Messagenumber;
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/* Parameter */
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union {
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__u32 Controller;
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__u32 PLCI;
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__u32 NCCI;
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} adr;
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__u8 para[MAX_CAPI_PARA_LEN];
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} capi_msg;
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/*
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* Structure for exchanging above infos
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*
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*/
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typedef struct {
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int driver; /* Lowlevel-Driver-ID */
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int command; /* Command or Status (see above) */
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ulong arg; /* Additional Data */
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union {
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ulong errcode; /* Type of error with STAT_L1ERR */
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int length; /* Amount of bytes sent with STAT_BSENT */
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u_char num[50]; /* Additional Data */
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setup_parm setup;/* For SETUP msg */
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capi_msg cmsg; /* For CAPI like messages */
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char display[85];/* display message data */
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isdn_cmd_stat isdn_io; /* ISDN IO-parameter/result */
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aux_s aux; /* for modem commands/indications */
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#ifdef CONFIG_ISDN_TTY_FAX
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T30_s *fax; /* Pointer to ttys fax struct */
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#endif
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ulong userdata; /* User Data */
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} parm;
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} isdn_ctrl;
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#define dss1_io isdn_io
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#define ni1_io isdn_io
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/*
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* The interface-struct itself (initialized at load-time of lowlevel-driver)
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*
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* See Documentation/isdn/INTERFACE for a description, how the communication
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* between the ISDN subsystem and its drivers is done.
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*
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*/
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typedef struct {
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struct module *owner;
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/* Number of channels supported by this driver
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*/
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int channels;
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/*
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* Maximum Size of transmit/receive-buffer this driver supports.
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*/
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int maxbufsize;
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/* Feature-Flags for this driver.
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* See defines ISDN_FEATURE_... for Values
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*/
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unsigned long features;
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/*
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* Needed for calculating
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* dev->hard_header_len = linklayer header + hl_hdrlen;
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* Drivers, not supporting sk_buff's should set this to 0.
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*/
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unsigned short hl_hdrlen;
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/*
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* Receive-Callback using sk_buff's
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* Parameters:
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* int Driver-ID
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* int local channel-number (0 ...)
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* struct sk_buff *skb received Data
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*/
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void (*rcvcallb_skb)(int, int, struct sk_buff *);
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/* Status-Callback
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* Parameters:
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* isdn_ctrl*
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* driver = Driver ID.
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* command = One of above ISDN_STAT_... constants.
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* arg = depending on status-type.
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* num = depending on status-type.
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*/
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int (*statcallb)(isdn_ctrl*);
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/* Send command
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* Parameters:
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* isdn_ctrl*
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* driver = Driver ID.
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* command = One of above ISDN_CMD_... constants.
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* arg = depending on command.
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* num = depending on command.
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*/
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int (*command)(isdn_ctrl*);
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/*
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* Send data using sk_buff's
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* Parameters:
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* int driverId
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* int local channel-number (0...)
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* int Flag: Need ACK for this packet.
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* struct sk_buff *skb Data to send
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*/
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int (*writebuf_skb) (int, int, int, struct sk_buff *);
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/* Send raw D-Channel-Commands
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* Parameters:
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* u_char pointer data
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* int length of data
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* int driverId
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* int local channel-number (0 ...)
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*/
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int (*writecmd)(const u_char __user *, int, int, int);
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/* Read raw Status replies
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* u_char pointer data (volatile)
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* int length of buffer
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* int driverId
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* int local channel-number (0 ...)
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*/
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int (*readstat)(u_char __user *, int, int, int);
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char id[20];
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} isdn_if;
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/*
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* Function which must be called by lowlevel-driver at loadtime with
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* the following fields of above struct set:
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*
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* channels Number of channels that will be supported.
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* hl_hdrlen Space to preserve in sk_buff's when sending. Drivers, not
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* supporting sk_buff's should set this to 0.
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* command Address of Command-Handler.
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* features Bitwise coded Features of this driver. (use ISDN_FEATURE_...)
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* writebuf_skb Address of Skbuff-Send-Handler.
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* writecmd " " D-Channel " which accepts raw D-Ch-Commands.
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* readstat " " D-Channel " which delivers raw Status-Data.
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*
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* The linklevel-driver fills the following fields:
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*
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* channels Driver-ID assigned to this driver. (Must be used on all
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* subsequent callbacks.
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* rcvcallb_skb Address of handler for received Skbuff's.
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* statcallb " " " for status-changes.
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*
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*/
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extern int register_isdn(isdn_if*);
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#include <asm/uaccess.h>
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#endif /* __ISDNIF_H__ */
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