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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;

};