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isdnif.h
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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__ */