isdnif.h
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- /* $Id: isdnif.h,v 1.1.4.1 2001/11/20 14:19:38 kai 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__
- /*
- * Values for general protocol-selection
- */
- #define ISDN_PTYPE_UNKNOWN 0 /* Protocol undefined */
- #define ISDN_PTYPE_1TR6 1 /* german 1TR6-protocol */
- #define ISDN_PTYPE_EURO 2 /* EDSS1-protocol */
- #define ISDN_PTYPE_LEASED 3 /* for leased lines */
- #define ISDN_PTYPE_NI1 4 /* US NI-1 protocol */
- #define ISDN_PTYPE_MAX 7 /* Max. 8 Protocols */
- /*
- * Values for Layer-2-protocol-selection
- */
- #define ISDN_PROTO_L2_X75I 0 /* X75/LAPB with I-Frames */
- #define ISDN_PROTO_L2_X75UI 1 /* X75/LAPB with UI-Frames */
- #define ISDN_PROTO_L2_X75BUI 2 /* X75/LAPB with UI-Frames */
- #define ISDN_PROTO_L2_HDLC 3 /* HDLC */
- #define ISDN_PROTO_L2_TRANS 4 /* Transparent (Voice) */
- #define ISDN_PROTO_L2_X25DTE 5 /* X25/LAPB DTE mode */
- #define ISDN_PROTO_L2_X25DCE 6 /* X25/LAPB DCE mode */
- #define ISDN_PROTO_L2_V11096 7 /* V.110 bitrate adaption 9600 Baud */
- #define ISDN_PROTO_L2_V11019 8 /* V.110 bitrate adaption 19200 Baud */
- #define ISDN_PROTO_L2_V11038 9 /* V.110 bitrate adaption 38400 Baud */
- #define ISDN_PROTO_L2_MODEM 10 /* Analog Modem on Board */
- #define ISDN_PROTO_L2_FAX 11 /* Fax Group 2/3 */
- #define ISDN_PROTO_L2_HDLC_56K 12 /* HDLC 56k */
- #define ISDN_PROTO_L2_MAX 15 /* Max. 16 Protocols */
- /*
- * Values for Layer-3-protocol-selection
- */
- #define ISDN_PROTO_L3_TRANS 0 /* Transparent */
- #define ISDN_PROTO_L3_TRANSDSP 1 /* Transparent with DSP */
- #define ISDN_PROTO_L3_FCLASS2 2 /* Fax Group 2/3 CLASS 2 */
- #define ISDN_PROTO_L3_FCLASS1 3 /* Fax Group 2/3 CLASS 1 */
- #define ISDN_PROTO_L3_MAX 7 /* Max. 8 Protocols */
- #ifdef __KERNEL__
- #include <linux/config.h>
- #include <linux/skbuff.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 dependant */
- /* 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 __attribute__ ((packed));
- __u8 rate __attribute__ ((packed));
- __u8 width __attribute__ ((packed));
- __u8 length __attribute__ ((packed));
- __u8 compression __attribute__ ((packed));
- __u8 ecm __attribute__ ((packed));
- __u8 binary __attribute__ ((packed));
- __u8 scantime __attribute__ ((packed));
- __u8 id[FAXIDLEN] __attribute__ ((packed));
- /* additional parameters */
- __u8 phase __attribute__ ((packed));
- __u8 direction __attribute__ ((packed));
- __u8 code __attribute__ ((packed));
- __u8 badlin __attribute__ ((packed));
- __u8 badmul __attribute__ ((packed));
- __u8 bor __attribute__ ((packed));
- __u8 fet __attribute__ ((packed));
- __u8 pollid[FAXIDLEN] __attribute__ ((packed));
- __u8 cq __attribute__ ((packed));
- __u8 cr __attribute__ ((packed));
- __u8 ctcrty __attribute__ ((packed));
- __u8 minsp __attribute__ ((packed));
- __u8 phcto __attribute__ ((packed));
- __u8 rel __attribute__ ((packed));
- __u8 nbc __attribute__ ((packed));
- /* remote station parameters */
- __u8 r_resolution __attribute__ ((packed));
- __u8 r_rate __attribute__ ((packed));
- __u8 r_width __attribute__ ((packed));
- __u8 r_length __attribute__ ((packed));
- __u8 r_compression __attribute__ ((packed));
- __u8 r_ecm __attribute__ ((packed));
- __u8 r_binary __attribute__ ((packed));
- __u8 r_scantime __attribute__ ((packed));
- __u8 r_id[FAXIDLEN] __attribute__ ((packed));
- __u8 r_code __attribute__ ((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 {
- /* 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 Flag: 0 = Call form Kernel-Space (use memcpy,
- * no schedule allowed)
- * 1 = Data is in User-Space (use memcpy_fromfs,
- * may schedule)
- * int driverId
- * int local channel-number (0 ...)
- */
- int (*writecmd)(const u_char*, int, int, int, int);
- /* Read raw Status replies
- * u_char pointer data (volatile)
- * int length of buffer
- * int Flag: 0 = Call form Kernel-Space (use memcpy,
- * no schedule allowed)
- * 1 = Data is in User-Space (use memcpy_fromfs,
- * may schedule)
- * int driverId
- * int local channel-number (0 ...)
- */
- int (*readstat)(u_char*, int, 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 /* __KERNEL__ */
- #endif /* __ISDNIF_H__ */