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Diffstat (limited to 'drivers/net/wan/farsync.h')
| -rw-r--r-- | drivers/net/wan/farsync.h | 357 |
1 files changed, 357 insertions, 0 deletions
diff --git a/drivers/net/wan/farsync.h b/drivers/net/wan/farsync.h new file mode 100644 index 000000000000..d871dafa87a1 --- /dev/null +++ b/drivers/net/wan/farsync.h @@ -0,0 +1,357 @@ +/* + * 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 <bob.dunlop@farsite.co.uk> + * + * 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 "1.04" + + +/* 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 long kernelVersion; /* What Kernel version we are working with */ + 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 */ + unsigned char transparentMode; /* Not used always 0 */ + unsigned char invertClock; /* Invert clock feature for syncing */ + unsigned char startingSlot; /* Time slot to use for start of tx */ + unsigned char clockSource; /* External or internal */ + unsigned char framing; /* E1, T1 or J1 */ + unsigned char structure; /* unframed, double, crc4, f4, f12, */ + /* f24 f72 */ + unsigned char interface; /* rj48c or bnc */ + unsigned char coding; /* hdb3 b8zs */ + unsigned char lineBuildOut; /* 0, -7.5, -15, -22 */ + unsigned char equalizer; /* short or lon haul settings */ + unsigned char loopMode; /* various loopbacks */ + unsigned char range; /* cable lengths */ + unsigned char txBufferMode; /* tx elastic buffer depth */ + unsigned char rxBufferMode; /* rx elastic buffer depth */ + unsigned char losThreshold; /* Attenuation on LOS signal */ + unsigned char idleCode; /* Value to send as idle timeslot */ + unsigned int receiveBufferDelay; /* delay thro rx buffer timeslots */ + unsigned int framingErrorCount; /* framing errors */ + unsigned int codeViolationCount; /* code violations */ + unsigned int crcErrorCount; /* CRC errors */ + int lineAttenuation; /* in dB*/ + unsigned short lossOfSignal; + unsigned short receiveRemoteAlarm; + unsigned short alarmIndicationSignal; +}; + +/* "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_PHASE 0x00000800 /* Clock phase */ +#define FSTVAL_TE1 0x00001000 /* T1E1 Configuration */ +#define FSTVAL_DEBUG 0x80000000 /* debug */ +#define FSTVAL_ALL 0x00001FFF /* 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 */ +#define FST_TYPE_T1U 3 /* T1U X21 1 port card */ +#define FST_TYPE_T2U 4 /* T2U X21 2 port card */ +#define FST_TYPE_T4U 5 /* T4U X21 4 port card */ +#define FST_TYPE_TE1 6 /* T1E1 X21 1 port card */ + +/* "family" */ +#define FST_FAMILY_TXP 0 /* T2P or T4P */ +#define FST_FAMILY_TXU 1 /* T1U or T2U or T4U */ + +/* "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 +#define X21D 4 +#define T1 5 +#define E1 6 +#define J1 7 + +/* "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 + +/* + * Constants for T1/E1 configuration + */ + +/* + * Clock source + */ +#define CLOCKING_SLAVE 0 +#define CLOCKING_MASTER 1 + +/* + * Framing + */ +#define FRAMING_E1 0 +#define FRAMING_J1 1 +#define FRAMING_T1 2 + +/* + * Structure + */ +#define STRUCTURE_UNFRAMED 0 +#define STRUCTURE_E1_DOUBLE 1 +#define STRUCTURE_E1_CRC4 2 +#define STRUCTURE_E1_CRC4M 3 +#define STRUCTURE_T1_4 4 +#define STRUCTURE_T1_12 5 +#define STRUCTURE_T1_24 6 +#define STRUCTURE_T1_72 7 + +/* + * Interface + */ +#define INTERFACE_RJ48C 0 +#define INTERFACE_BNC 1 + +/* + * Coding + */ + +#define CODING_HDB3 0 +#define CODING_NRZ 1 +#define CODING_CMI 2 +#define CODING_CMI_HDB3 3 +#define CODING_CMI_B8ZS 4 +#define CODING_AMI 5 +#define CODING_AMI_ZCS 6 +#define CODING_B8ZS 7 + +/* + * Line Build Out + */ +#define LBO_0dB 0 +#define LBO_7dB5 1 +#define LBO_15dB 2 +#define LBO_22dB5 3 + +/* + * Range for long haul t1 > 655ft + */ +#define RANGE_0_133_FT 0 +#define RANGE_0_40_M RANGE_0_133_FT +#define RANGE_133_266_FT 1 +#define RANGE_40_81_M RANGE_133_266_FT +#define RANGE_266_399_FT 2 +#define RANGE_81_122_M RANGE_266_399_FT +#define RANGE_399_533_FT 3 +#define RANGE_122_162_M RANGE_399_533_FT +#define RANGE_533_655_FT 4 +#define RANGE_162_200_M RANGE_533_655_FT +/* + * Receive Equaliser + */ +#define EQUALIZER_SHORT 0 +#define EQUALIZER_LONG 1 + +/* + * Loop modes + */ +#define LOOP_NONE 0 +#define LOOP_LOCAL 1 +#define LOOP_PAYLOAD_EXC_TS0 2 +#define LOOP_PAYLOAD_INC_TS0 3 +#define LOOP_REMOTE 4 + +/* + * Buffer modes + */ +#define BUFFER_2_FRAME 0 +#define BUFFER_1_FRAME 1 +#define BUFFER_96_BIT 2 +#define BUFFER_NONE 3 + +/* 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 */ + |