/* * FarSync X21 driver for Linux * * Actually sync driver for X.21, V.35 and V.24 on FarSync T-series cards * * Copyright (C) 2001 FarSite Communications Ltd. * www.farsite.co.uk * * 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 of the License, or (at your option) any later version. * * Author: R.J.Dunlop * * For the most part this file only contains structures and information * that is visible to applications outside the driver. Shared memory * layout etc is internal to the driver and described within farsync.c. * Overlap exists in that the values used for some fields within the * ioctl interface extend into the cards firmware interface so values in * this file may not be changed arbitrarily. */ /* What's in a name * * The project name for this driver is Oscar. The driver is intended to be * used with the FarSite T-Series cards (T2P & T4P) running in the high * speed frame shifter mode. This is sometimes referred to as X.21 mode * which is a complete misnomer as the card continues to support V.24 and * V.35 as well as X.21. * * A short common prefix is useful for routines within the driver to avoid * conflict with other similar drivers and I chosen to use "fst_" for this * purpose (FarSite T-series). * * Finally the device driver needs a short network interface name. Since * "hdlc" is already in use I've chosen the even less informative "sync" * for the present. */ #define FST_NAME "fst" /* In debug/info etc */ #define FST_NDEV_NAME "sync" /* For net interface */ #define FST_DEV_NAME "farsync" /* For misc interfaces */ /* User version number * * This version number is incremented with each official release of the * package and is a simplified number for normal user reference. * Individual files are tracked by the version control system and may * have individual versions (or IDs) that move much faster than the * the release version as individual updates are tracked. */ #define FST_USER_VERSION "0.09" /* Ioctl call command values * * The first three private ioctls are used by the sync-PPP module, * allowing a little room for expansion we start our numbering at 10. */ #define FSTWRITE (SIOCDEVPRIVATE+10) #define FSTCPURESET (SIOCDEVPRIVATE+11) #define FSTCPURELEASE (SIOCDEVPRIVATE+12) #define FSTGETCONF (SIOCDEVPRIVATE+13) #define FSTSETCONF (SIOCDEVPRIVATE+14) /* FSTWRITE * * Used to write a block of data (firmware etc) before the card is running */ struct fstioc_write { unsigned int size; unsigned int offset; unsigned char data[0]; }; /* FSTCPURESET and FSTCPURELEASE * * These take no additional data. * FSTCPURESET forces the cards CPU into a reset state and holds it there. * FSTCPURELEASE releases the CPU from this reset state allowing it to run, * the reset vector should be setup before this ioctl is run. */ /* FSTGETCONF and FSTSETCONF * * Get and set a card/ports configuration. * In order to allow selective setting of items and for the kernel to * indicate a partial status response the first field "valid" is a bitmask * indicating which other fields in the structure are valid. * Many of the field names in this structure match those used in the * firmware shared memory configuration interface and come originally from * the NT header file Smc.h * * When used with FSTGETCONF this structure should be zeroed before use. * This is to allow for possible future expansion when some of the fields * might be used to indicate a different (expanded) structure. */ struct fstioc_info { unsigned int valid; /* Bits of structure that are valid */ unsigned int nports; /* Number of serial ports */ unsigned int type; /* Type index of card */ unsigned int state; /* State of card */ unsigned int index; /* Index of port ioctl was issued on */ unsigned int smcFirmwareVersion; unsigned short lineInterface; /* Physical interface type */ unsigned char proto; /* Line protocol */ unsigned char internalClock; /* 1 => internal clock, 0 => external */ unsigned int lineSpeed; /* Speed in bps */ unsigned int v24IpSts; /* V.24 control input status */ unsigned int v24OpSts; /* V.24 control output status */ unsigned short clockStatus; /* lsb: 0=> present, 1=> absent */ unsigned short cableStatus; /* lsb: 0=> present, 1=> absent */ unsigned short cardMode; /* lsb: LED id mode */ unsigned short debug; /* Debug flags */ }; /* "valid" bitmask */ #define FSTVAL_NONE 0x00000000 /* Nothing valid (firmware not running). * Slight misnomer. In fact nports, * type, state and index will be set * based on hardware detected. */ #define FSTVAL_OMODEM 0x0000001F /* First 5 bits correspond to the * output status bits defined for * v24OpSts */ #define FSTVAL_SPEED 0x00000020 /* internalClock, lineSpeed, clockStatus */ #define FSTVAL_CABLE 0x00000040 /* lineInterface, cableStatus */ #define FSTVAL_IMODEM 0x00000080 /* v24IpSts */ #define FSTVAL_CARD 0x00000100 /* nports, type, state, index, * smcFirmwareVersion */ #define FSTVAL_PROTO 0x00000200 /* proto */ #define FSTVAL_MODE 0x00000400 /* cardMode */ #define FSTVAL_DEBUG 0x80000000 /* debug */ #define FSTVAL_ALL 0x000007FF /* Note: does not include DEBUG flag */ /* "type" */ #define FST_TYPE_NONE 0 /* Probably should never happen */ #define FST_TYPE_T2P 1 /* T2P X21 2 port card */ #define FST_TYPE_T4P 2 /* T4P X21 4 port card */ /* "state" */ #define FST_UNINIT 0 /* Raw uninitialised state following * system startup */ #define FST_RESET 1 /* Processor held in reset state */ #define FST_DOWNLOAD 2 /* Card being downloaded */ #define FST_STARTING 3 /* Released following download */ #define FST_RUNNING 4 /* Processor running */ #define FST_BADVERSION 5 /* Bad shared memory version detected */ #define FST_HALTED 6 /* Processor flagged a halt */ #define FST_IFAILED 7 /* Firmware issued initialisation failed * interrupt */ /* "lineInterface" */ #define V24 1 #define X21 2 #define V35 3 /* "proto" */ #define FST_HDLC 1 /* Cisco compatible HDLC */ #define FST_PPP 2 /* Sync PPP */ #define FST_MONITOR 3 /* Monitor only (raw packet reception) */ #define FST_RAW 4 /* Two way raw packets */ #define FST_GEN_HDLC 5 /* Using "Generic HDLC" module */ /* "internalClock" */ #define INTCLK 1 #define EXTCLK 0 /* "v24IpSts" bitmask */ #define IPSTS_CTS 0x00000001 /* Clear To Send (Indicate for X.21) */ #define IPSTS_INDICATE IPSTS_CTS #define IPSTS_DSR 0x00000002 /* Data Set Ready (T2P Port A) */ #define IPSTS_DCD 0x00000004 /* Data Carrier Detect */ #define IPSTS_RI 0x00000008 /* Ring Indicator (T2P Port A) */ #define IPSTS_TMI 0x00000010 /* Test Mode Indicator (Not Supported)*/ /* "v24OpSts" bitmask */ #define OPSTS_RTS 0x00000001 /* Request To Send (Control for X.21) */ #define OPSTS_CONTROL OPSTS_RTS #define OPSTS_DTR 0x00000002 /* Data Terminal Ready */ #define OPSTS_DSRS 0x00000004 /* Data Signalling Rate Select (Not * Supported) */ #define OPSTS_SS 0x00000008 /* Select Standby (Not Supported) */ #define OPSTS_LL 0x00000010 /* Maintenance Test (Not Supported) */ /* "cardMode" bitmask */ #define CARD_MODE_IDENTIFY 0x0001 /* Debug support * * These should only be enabled for development kernels, production code * should define FST_DEBUG=0 in order to exclude the code. * Setting FST_DEBUG=1 will include all the debug code but in a disabled * state, use the FSTSETCONF ioctl to enable specific debug actions, or * FST_DEBUG can be set to prime the debug selection. */ #define FST_DEBUG 0x0000 #if FST_DEBUG extern int fst_debug_mask; /* Bit mask of actions to debug, bits * listed below. Note: Bit 0 is used * to trigger the inclusion of this * code, without enabling any actions. */ #define DBG_INIT 0x0002 /* Card detection and initialisation */ #define DBG_OPEN 0x0004 /* Open and close sequences */ #define DBG_PCI 0x0008 /* PCI config operations */ #define DBG_IOCTL 0x0010 /* Ioctls and other config */ #define DBG_INTR 0x0020 /* Interrupt routines (be careful) */ #define DBG_TX 0x0040 /* Packet transmission */ #define DBG_RX 0x0080 /* Packet reception */ #define DBG_CMD 0x0100 /* Port command issuing */ #define DBG_ASS 0xFFFF /* Assert like statements. Code that * should never be reached, if you see * one of these then I've been an ass */ #endif /* FST_DEBUG */