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