| /* $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__ |
| |
| |
| /* |
| * 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 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; |
| } __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 { |
| 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 /* __KERNEL__ */ |
| |
| #endif /* __ISDNIF_H__ */ |
