port.h
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上传日期:2013-02-24
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- /*
- ** -----------------------------------------------------------------------------
- **
- ** Perle Specialix driver for Linux
- ** Ported from existing RIO Driver for SCO sources.
- *
- * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- **
- ** Module : port.h
- ** SID : 1.3
- ** Last Modified : 11/6/98 11:34:12
- ** Retrieved : 11/6/98 11:34:21
- **
- ** ident @(#)port.h 1.3
- **
- ** -----------------------------------------------------------------------------
- */
- #ifndef __rio_port_h__
- #define __rio_port_h__
- #ifdef SCCS_LABELS
- static char *_port_h_sccs_ = "@(#)port.h 1.3";
- #endif
- #undef VPIX
- /*
- ** the port data structure - one per port in the system
- */
- #ifdef STATS
- struct RIOStats
- {
- /*
- ** interrupt statistics
- */
- uint BreakIntCnt;
- uint ModemOffCnt;
- uint ModemOnCnt;
- uint RxIntCnt;
- uint TxIntCnt;
- /*
- ** throughput statistics
- */
- uint RxCharCnt;
- uint RxPktCnt;
- uint RxSaveCnt;
- uint TxCharCnt;
- uint TxPktCnt;
- /*
- ** driver entry statistics
- */
- uint CloseCnt;
- uint IoctlCnt;
- uint OpenCnt;
- uint ReadCnt;
- uint WriteCnt;
- /*
- ** proc statistics
- */
- uint BlockCnt;
- uint OutputCnt;
- uint ResumeCnt;
- uint RflushCnt;
- uint SuspendCnt;
- uint TbreakCnt;
- uint TimeoutCnt;
- uint UnblockCnt;
- uint WflushCnt;
- uint WFBodgeCnt;
- };
- #endif
- /*
- ** Port data structure
- */
- struct Port
- {
- struct gs_port gs;
- int PortNum; /* RIO port no., 0-511 */
- struct Host *HostP;
- volatile caddr_t Caddr;
- ushort HostPort; /* Port number on host card */
- uchar RupNum; /* Number of RUP for port */
- uchar ID2; /* Second ID of RTA for port */
- ulong State; /* FLAGS for open & xopen */
- #define RIO_LOPEN 0x00001 /* Local open */
- #define RIO_MOPEN 0x00002 /* Modem open */
- #define RIO_WOPEN 0x00004 /* Waiting for open */
- #define RIO_CLOSING 0x00008 /* The port is being close */
- #define RIO_XPBUSY 0x00010 /* Transparent printer busy */
- #define RIO_BREAKING 0x00020 /* Break in progress */
- #define RIO_DIRECT 0x00040 /* Doing Direct output */
- #define RIO_EXCLUSIVE 0x00080 /* Stream open for exclusive use */
- #define RIO_NDELAY 0x00100 /* Stream is open FNDELAY */
- #define RIO_CARR_ON 0x00200 /* Stream has carrier present */
- #define RIO_XPWANTR 0x00400 /* Stream wanted by Xprint */
- #define RIO_RBLK 0x00800 /* Stream is read-blocked */
- #define RIO_BUSY 0x01000 /* Stream is BUSY for write */
- #define RIO_TIMEOUT 0x02000 /* Stream timeout in progress */
- #define RIO_TXSTOP 0x04000 /* Stream output is stopped */
- #define RIO_WAITFLUSH 0x08000 /* Stream waiting for flush */
- #define RIO_DYNOROD 0x10000 /* Drain failed */
- #define RIO_DELETED 0x20000 /* RTA has been deleted */
- #define RIO_ISSCANCODE 0x40000 /* This line is in scancode mode */
- #define RIO_USING_EUC 0x100000 /* Using extended Unix chars */
- #define RIO_CAN_COOK 0x200000 /* This line can do cooking */
- #define RIO_TRIAD_MODE 0x400000 /* Enable TRIAD special ops. */
- #define RIO_TRIAD_BLOCK 0x800000 /* Next read will block */
- #define RIO_TRIAD_FUNC 0x1000000 /* Seen a function key coming in */
- #define RIO_THROTTLE_RX 0x2000000 /* RX needs to be throttled. */
- ulong Config; /* FLAGS for NOREAD.... */
- #define RIO_NOREAD 0x0001 /* Are not allowed to read port */
- #define RIO_NOWRITE 0x0002 /* Are not allowed to write port */
- #define RIO_NOXPRINT 0x0004 /* Are not allowed to xprint port */
- #define RIO_NOMASK 0x0007 /* All not allowed things */
- #define RIO_IXANY 0x0008 /* Port is allowed ixany */
- #define RIO_MODEM 0x0010 /* Stream is a modem device */
- #define RIO_IXON 0x0020 /* Port is allowed ixon */
- #define RIO_WAITDRAIN 0x0040 /* Wait for port to completely drain */
- #define RIO_MAP_50_TO_50 0x0080 /* Map 50 baud to 50 baud */
- #define RIO_MAP_110_TO_110 0x0100 /* Map 110 baud to 110 baud */
- /*
- ** 15.10.1998 ARG - ESIL 0761 prt fix
- ** As LynxOS does not appear to support Hardware Flow Control .....
- ** Define our own flow control flags in 'Config'.
- */
- #define RIO_CTSFLOW 0x0200 /* RIO's own CTSFLOW flag */
- #define RIO_RTSFLOW 0x0400 /* RIO's own RTSFLOW flag */
- struct PHB *PhbP; /* pointer to PHB for port */
- WORD *TxAdd; /* Add packets here */
- WORD *TxStart; /* Start of add array */
- WORD *TxEnd; /* End of add array */
- WORD *RxRemove; /* Remove packets here */
- WORD *RxStart; /* Start of remove array */
- WORD *RxEnd; /* End of remove array */
- uint RtaUniqueNum; /* Unique number of RTA */
- ushort PortState; /* status of port */
- ushort ModemState; /* status of modem lines */
- ulong ModemLines; /* Modem bits sent to RTA */
- uchar CookMode; /* who expands CR/LF? */
- uchar ParamSem; /* Prevent write during param */
- uchar Mapped; /* if port mapped onto host */
- uchar SecondBlock; /* if port belongs to 2nd block
- of 16 port RTA */
- uchar InUse; /* how many pre-emptive cmds */
- uchar Lock; /* if params locked */
- uchar Store; /* if params stored across closes */
- uchar FirstOpen; /* TRUE if first time port opened */
- uchar FlushCmdBodge; /* if doing a (non)flush */
- uchar MagicFlags; /* require intr processing */
- #define MAGIC_FLUSH 0x01 /* mirror of WflushFlag */
- #define MAGIC_REBOOT 0x02 /* RTA re-booted, re-open ports */
- #define MORE_OUTPUT_EYGOR 0x04 /* riotproc failed to empty clists */
- uchar WflushFlag; /* 1 How many WFLUSHs active */
- /*
- ** Transparent print stuff
- */
- struct Xprint
- {
- #ifndef MAX_XP_CTRL_LEN
- #define MAX_XP_CTRL_LEN 16 /* ALSO IN DAEMON.H */
- #endif
- uint XpCps;
- char XpOn[MAX_XP_CTRL_LEN];
- char XpOff[MAX_XP_CTRL_LEN];
- ushort XpLen; /* strlen(XpOn)+strlen(XpOff) */
- uchar XpActive;
- uchar XpLastTickOk; /* TRUE if we can process */
- #define XP_OPEN 00001
- #define XP_RUNABLE 00002
- struct ttystatics *XttyP;
- } Xprint;
- #ifdef VPIX
- v86_t *StashP;
- uint IntMask;
- struct termss VpixSs;
- uchar ModemStatusReg; /* Modem status register */
- #endif
- uchar RxDataStart;
- uchar Cor2Copy; /* copy of COR2 */
- char *Name; /* points to the Rta's name */
- #ifdef STATS
- struct RIOStats Stat; /* ports statistics */
- #endif
- char *TxRingBuffer;
- ushort TxBufferIn; /* New data arrives here */
- ushort TxBufferOut; /* Intr removes data here */
- ushort OldTxBufferOut; /* Indicates if draining */
- int TimeoutId; /* Timeout ID */
- uint Debug;
- uchar WaitUntilBooted; /* True if open should block */
- uint statsGather; /* True if gathering stats */
- ulong txchars; /* Chars transmitted */
- ulong rxchars; /* Chars received */
- ulong opens; /* port open count */
- ulong closes; /* port close count */
- ulong ioctls; /* ioctl count */
- uchar LastRxTgl; /* Last state of rx toggle bit */
- spinlock_t portSem; /* Lock using this sem */
- int MonitorTstate; /* Monitoring ? */
- int timeout_id; /* For calling 100 ms delays */
- int timeout_sem;/* For calling 100 ms delays */
- int firstOpen; /* First time open ? */
- char * p; /* save the global struc here .. */
- };
- struct ModuleInfo
- {
- char *Name;
- uint Flags[4]; /* one per port on a module */
- };
- #endif
- /*
- ** This struct is required because trying to grab an entire Port structure
- ** runs into problems with differing struct sizes between driver and config.
- */
- struct PortParams {
- uint Port;
- ulong Config;
- ulong State;
- struct ttystatics *TtyP;
- };