246 lines
8.1 KiB
C
246 lines
8.1 KiB
C
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/*
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** -----------------------------------------------------------------------------
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**
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** Perle Specialix driver for Linux
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** Ported from existing RIO Driver for SCO sources.
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*
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* (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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**
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** Module : port.h
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** SID : 1.3
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** Last Modified : 11/6/98 11:34:12
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** Retrieved : 11/6/98 11:34:21
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**
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** ident @(#)port.h 1.3
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**
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** -----------------------------------------------------------------------------
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*/
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#ifndef __rio_port_h__
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#define __rio_port_h__
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#ifdef SCCS_LABELS
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static char *_port_h_sccs_ = "@(#)port.h 1.3";
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#endif
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#undef VPIX
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/*
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** the port data structure - one per port in the system
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*/
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#ifdef STATS
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struct RIOStats
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{
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/*
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** interrupt statistics
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*/
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uint BreakIntCnt;
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uint ModemOffCnt;
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uint ModemOnCnt;
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uint RxIntCnt;
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uint TxIntCnt;
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/*
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** throughput statistics
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*/
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uint RxCharCnt;
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uint RxPktCnt;
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uint RxSaveCnt;
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uint TxCharCnt;
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uint TxPktCnt;
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/*
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** driver entry statistics
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*/
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uint CloseCnt;
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uint IoctlCnt;
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uint OpenCnt;
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uint ReadCnt;
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uint WriteCnt;
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/*
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** proc statistics
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*/
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uint BlockCnt;
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uint OutputCnt;
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uint ResumeCnt;
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uint RflushCnt;
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uint SuspendCnt;
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uint TbreakCnt;
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uint TimeoutCnt;
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uint UnblockCnt;
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uint WflushCnt;
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uint WFBodgeCnt;
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};
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#endif
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/*
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** Port data structure
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*/
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struct Port
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{
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struct gs_port gs;
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int PortNum; /* RIO port no., 0-511 */
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struct Host *HostP;
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volatile caddr_t Caddr;
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ushort HostPort; /* Port number on host card */
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uchar RupNum; /* Number of RUP for port */
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uchar ID2; /* Second ID of RTA for port */
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ulong State; /* FLAGS for open & xopen */
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#define RIO_LOPEN 0x00001 /* Local open */
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#define RIO_MOPEN 0x00002 /* Modem open */
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#define RIO_WOPEN 0x00004 /* Waiting for open */
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#define RIO_CLOSING 0x00008 /* The port is being close */
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#define RIO_XPBUSY 0x00010 /* Transparent printer busy */
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#define RIO_BREAKING 0x00020 /* Break in progress */
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#define RIO_DIRECT 0x00040 /* Doing Direct output */
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#define RIO_EXCLUSIVE 0x00080 /* Stream open for exclusive use */
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#define RIO_NDELAY 0x00100 /* Stream is open FNDELAY */
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#define RIO_CARR_ON 0x00200 /* Stream has carrier present */
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#define RIO_XPWANTR 0x00400 /* Stream wanted by Xprint */
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#define RIO_RBLK 0x00800 /* Stream is read-blocked */
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#define RIO_BUSY 0x01000 /* Stream is BUSY for write */
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#define RIO_TIMEOUT 0x02000 /* Stream timeout in progress */
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#define RIO_TXSTOP 0x04000 /* Stream output is stopped */
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#define RIO_WAITFLUSH 0x08000 /* Stream waiting for flush */
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#define RIO_DYNOROD 0x10000 /* Drain failed */
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#define RIO_DELETED 0x20000 /* RTA has been deleted */
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#define RIO_ISSCANCODE 0x40000 /* This line is in scancode mode */
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#define RIO_USING_EUC 0x100000 /* Using extended Unix chars */
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#define RIO_CAN_COOK 0x200000 /* This line can do cooking */
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#define RIO_TRIAD_MODE 0x400000 /* Enable TRIAD special ops. */
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#define RIO_TRIAD_BLOCK 0x800000 /* Next read will block */
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#define RIO_TRIAD_FUNC 0x1000000 /* Seen a function key coming in */
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#define RIO_THROTTLE_RX 0x2000000 /* RX needs to be throttled. */
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ulong Config; /* FLAGS for NOREAD.... */
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#define RIO_NOREAD 0x0001 /* Are not allowed to read port */
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#define RIO_NOWRITE 0x0002 /* Are not allowed to write port */
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#define RIO_NOXPRINT 0x0004 /* Are not allowed to xprint port */
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#define RIO_NOMASK 0x0007 /* All not allowed things */
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#define RIO_IXANY 0x0008 /* Port is allowed ixany */
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#define RIO_MODEM 0x0010 /* Stream is a modem device */
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#define RIO_IXON 0x0020 /* Port is allowed ixon */
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#define RIO_WAITDRAIN 0x0040 /* Wait for port to completely drain */
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#define RIO_MAP_50_TO_50 0x0080 /* Map 50 baud to 50 baud */
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#define RIO_MAP_110_TO_110 0x0100 /* Map 110 baud to 110 baud */
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/*
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** 15.10.1998 ARG - ESIL 0761 prt fix
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** As LynxOS does not appear to support Hardware Flow Control .....
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** Define our own flow control flags in 'Config'.
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*/
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#define RIO_CTSFLOW 0x0200 /* RIO's own CTSFLOW flag */
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#define RIO_RTSFLOW 0x0400 /* RIO's own RTSFLOW flag */
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struct PHB *PhbP; /* pointer to PHB for port */
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WORD *TxAdd; /* Add packets here */
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WORD *TxStart; /* Start of add array */
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WORD *TxEnd; /* End of add array */
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WORD *RxRemove; /* Remove packets here */
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WORD *RxStart; /* Start of remove array */
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WORD *RxEnd; /* End of remove array */
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uint RtaUniqueNum; /* Unique number of RTA */
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ushort PortState; /* status of port */
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ushort ModemState; /* status of modem lines */
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ulong ModemLines; /* Modem bits sent to RTA */
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uchar CookMode; /* who expands CR/LF? */
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uchar ParamSem; /* Prevent write during param */
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uchar Mapped; /* if port mapped onto host */
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uchar SecondBlock; /* if port belongs to 2nd block
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of 16 port RTA */
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uchar InUse; /* how many pre-emptive cmds */
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uchar Lock; /* if params locked */
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uchar Store; /* if params stored across closes */
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uchar FirstOpen; /* TRUE if first time port opened */
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uchar FlushCmdBodge; /* if doing a (non)flush */
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uchar MagicFlags; /* require intr processing */
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#define MAGIC_FLUSH 0x01 /* mirror of WflushFlag */
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#define MAGIC_REBOOT 0x02 /* RTA re-booted, re-open ports */
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#define MORE_OUTPUT_EYGOR 0x04 /* riotproc failed to empty clists */
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uchar WflushFlag; /* 1 How many WFLUSHs active */
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/*
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** Transparent print stuff
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*/
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struct Xprint
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{
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#ifndef MAX_XP_CTRL_LEN
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#define MAX_XP_CTRL_LEN 16 /* ALSO IN DAEMON.H */
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#endif
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uint XpCps;
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char XpOn[MAX_XP_CTRL_LEN];
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char XpOff[MAX_XP_CTRL_LEN];
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ushort XpLen; /* strlen(XpOn)+strlen(XpOff) */
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uchar XpActive;
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uchar XpLastTickOk; /* TRUE if we can process */
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#define XP_OPEN 00001
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#define XP_RUNABLE 00002
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struct ttystatics *XttyP;
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} Xprint;
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#ifdef VPIX
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v86_t *StashP;
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uint IntMask;
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struct termss VpixSs;
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uchar ModemStatusReg; /* Modem status register */
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#endif
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uchar RxDataStart;
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uchar Cor2Copy; /* copy of COR2 */
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char *Name; /* points to the Rta's name */
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#ifdef STATS
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struct RIOStats Stat; /* ports statistics */
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#endif
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char *TxRingBuffer;
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ushort TxBufferIn; /* New data arrives here */
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ushort TxBufferOut; /* Intr removes data here */
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ushort OldTxBufferOut; /* Indicates if draining */
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int TimeoutId; /* Timeout ID */
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uint Debug;
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uchar WaitUntilBooted; /* True if open should block */
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uint statsGather; /* True if gathering stats */
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ulong txchars; /* Chars transmitted */
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ulong rxchars; /* Chars received */
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ulong opens; /* port open count */
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ulong closes; /* port close count */
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ulong ioctls; /* ioctl count */
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uchar LastRxTgl; /* Last state of rx toggle bit */
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spinlock_t portSem; /* Lock using this sem */
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int MonitorTstate; /* Monitoring ? */
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int timeout_id; /* For calling 100 ms delays */
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int timeout_sem;/* For calling 100 ms delays */
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int firstOpen; /* First time open ? */
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char * p; /* save the global struc here .. */
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};
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struct ModuleInfo
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{
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char *Name;
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uint Flags[4]; /* one per port on a module */
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};
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#endif
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/*
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** This struct is required because trying to grab an entire Port structure
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** runs into problems with differing struct sizes between driver and config.
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*/
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struct PortParams {
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uint Port;
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ulong Config;
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ulong State;
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struct ttystatics *TtyP;
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};
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