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Diffstat (limited to 'pfinet/linux-src/include/linux/isdnif.h')
| -rw-r--r-- | pfinet/linux-src/include/linux/isdnif.h | 622 |
1 files changed, 622 insertions, 0 deletions
diff --git a/pfinet/linux-src/include/linux/isdnif.h b/pfinet/linux-src/include/linux/isdnif.h new file mode 100644 index 00000000..aeb177ab --- /dev/null +++ b/pfinet/linux-src/include/linux/isdnif.h @@ -0,0 +1,622 @@ +/* $Id: isdnif.h,v 1.29 1999/07/31 13:00:02 armin Exp $ + * + * Linux ISDN subsystem + * + * Definition of the interface between the subsystem and its low-level drivers. + * + * Copyright 1994,95,96 by Fritz Elfert (fritz@wuemaus.franken.de) + * Copyright 1995,96 Thinking Objects Software GmbH Wuerzburg + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * $Log: isdnif.h,v $ + * Revision 1.29 1999/07/31 13:00:02 armin + * Added tty fax capabilities. + * + * Revision 1.28 1999/07/13 20:57:48 werner + * added callback ISDN_STAT_DISCH for limiting b-channel resources. + * + * Revision 1.27 1999/07/11 17:07:39 armin + * Added tty modem register S23. + * Added new layer 2 and 3 protocols for Fax and DSP functions. + * + * Revision 1.26 1999/07/01 08:35:44 keil + * compatibility to 2.3 + * + * Revision 1.25 1998/06/17 19:51:55 he + * merged with 2.1.10[34] (cosmetics and udelay() -> mdelay()) + * brute force fix to avoid Ugh's in isdn_tty_write() + * cleaned up some dead code + * + * Revision 1.24 1998/03/19 13:18:57 keil + * Start of a CAPI like interface for supplementary Service + * first service: SUSPEND + * + * Revision 1.23 1998/02/20 17:36:52 fritz + * Added L2-protocols for V.110, changed FEATURE-Flag-constants. + * + * Revision 1.22 1998/01/31 22:14:12 keil + * changes for 2.1.82 + * + * Revision 1.21 1997/10/09 21:28:13 fritz + * New HL<->LL interface: + * New BSENT callback with nr. of bytes included. + * Sending without ACK. + * New L1 error status (not yet in use). + * Cleaned up obsolete structures. + * Implemented Cisco-SLARP. + * Changed local net-interface data to be dynamically allocated. + * Removed old 2.0 compatibility stuff. + * + * Revision 1.20 1997/05/27 15:18:06 fritz + * Added changes for recent 2.1.x kernels: + * changed return type of isdn_close + * queue_task_* -> queue_task + * clear/set_bit -> test_and_... where apropriate. + * changed type of hard_header_cache parameter. + * + * Revision 1.19 1997/03/25 23:13:56 keil + * NI-1 US protocol + * + * Revision 1.18 1997/03/04 22:09:18 calle + * Change macros copy_from_user and copy_to_user in inline function. + * These are now correct replacements of the functions for 2.1.xx + * + * Revision 1.17 1997/02/10 21:12:53 fritz + * More setup-interface changes. + * + * Revision 1.16 1997/02/10 19:42:57 fritz + * New interface for reporting incoming calls. + * + * Revision 1.15 1997/02/09 00:18:42 keil + * leased line support + * + * Revision 1.14 1997/02/03 23:43:00 fritz + * Misc changes for Kernel 2.1.X compatibility. + * + * Revision 1.13 1996/11/13 02:39:59 fritz + * More compatibility changes. + * + * Revision 1.12 1996/11/06 17:38:48 keil + * more changes for 2.1.X + * + * Revision 1.11 1996/10/23 11:59:42 fritz + * More compatibility changes. + * + * Revision 1.10 1996/10/22 23:14:19 fritz + * Changes for compatibility to 2.0.X and 2.1.X kernels. + * + * Revision 1.9 1996/06/06 21:24:24 fritz + * Started adding support for suspend/resume. + * + * Revision 1.8 1996/05/18 01:45:37 fritz + * More spelling corrections. + * + * Revision 1.7 1996/05/18 01:37:19 fritz + * Added spelling corrections and some minor changes + * to stay in sync with kernel. + * + * Revision 1.6 1996/05/17 03:59:28 fritz + * Marked rcvcallb and writebuf obsolete. + * + * Revision 1.5 1996/05/01 11:43:54 fritz + * Removed STANDALONE + * + * Revision 1.4 1996/05/01 11:38:40 fritz + * Added ISDN_FEATURE_L2_TRANS + * + * Revision 1.3 1996/04/29 22:57:54 fritz + * Added driverId and channel parameters to + * writecmd() and readstat(). + * Added constant for voice-support. + * + * Revision 1.2 1996/04/20 17:02:40 fritz + * Changes to support skbuffs for Lowlevel-Drivers. + * Misc. typos + * + * Revision 1.1 1996/01/09 05:50:51 fritz + * Initial revision + * + */ + +#ifndef isdnif_h +#define isdnif_h + +#include <linux/isdn_compat.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_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_FAX 2 /* Fax Group 2/3 */ +#define ISDN_PROTO_L3_MAX 7 /* Max. 8 Protocols */ + +#ifdef __KERNEL__ + +#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. */ +/*********************************************************************/ +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 */ + } dss1_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_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_FAX (0x10000 << ISDN_PROTO_L3_FAX) + +#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 */ + +/* 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 */ + dss1_cmd_stat dss1_io; /* DSS1 IO-parameter/result */ +#ifdef CONFIG_ISDN_TTY_FAX + T30_s *fax; /* Pointer to ttys fax struct */ +#endif + } parm; +} isdn_ctrl; + +/* + * 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 */ |