drivers/char/rio/port.h

   1 /*
   2 ** -----------------------------------------------------------------------------
   3 **
   4 **  Perle Specialix driver for Linux
   5 **  Ported from existing RIO Driver for SCO sources.
   6  *
   7  *  (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK.
   8  *
   9  *      This program is free software; you can redistribute it and/or modify
  10  *      it under the terms of the GNU General Public License as published by
  11  *      the Free Software Foundation; either version 2 of the License, or
  12  *      (at your option) any later version.
  13  *
  14  *      This program is distributed in the hope that it will be useful,
  15  *      but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  *      GNU General Public License for more details.
  18  *
  19  *      You should have received a copy of the GNU General Public License
  20  *      along with this program; if not, write to the Free Software
  21  *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22 **
  23 **      Module          : port.h
  24 **      SID             : 1.3
  25 **      Last Modified   : 11/6/98 11:34:12
  26 **      Retrieved       : 11/6/98 11:34:21
  27 **
  28 **  ident @(#)port.h    1.3
  29 **
  30 ** -----------------------------------------------------------------------------
  31 */
  32
  33 #ifndef __rio_port_h__
  34 #define __rio_port_h__
  35
  36 #ifdef SCCS_LABELS
  37 static char *_port_h_sccs_ = "@(#)port.h        1.3";
  38 #endif
  39
  40
  41 #undef VPIX
  42
  43
  44 /*
  45 ** the port data structure - one per port in the system
  46 */
  47
  48 #ifdef STATS
  49 struct RIOStats
  50 {
  51         /*
  52         ** interrupt statistics
  53         */
  54         uint    BreakIntCnt;
  55         uint    ModemOffCnt;
  56         uint    ModemOnCnt;
  57         uint    RxIntCnt;
  58         uint    TxIntCnt;
  59         /*
  60         ** throughput statistics
  61         */
  62         uint    RxCharCnt;
  63         uint    RxPktCnt;
  64         uint    RxSaveCnt;
  65         uint    TxCharCnt;
  66         uint    TxPktCnt;
  67         /*
  68         ** driver entry statistics
  69         */
  70         uint    CloseCnt;
  71         uint    IoctlCnt;
  72         uint    OpenCnt;
  73         uint    ReadCnt;
  74         uint    WriteCnt;
  75         /*
  76         ** proc statistics
  77         */
  78         uint    BlockCnt;
  79         uint    OutputCnt;
  80         uint    ResumeCnt;
  81         uint    RflushCnt;
  82         uint    SuspendCnt;
  83         uint    TbreakCnt;
  84         uint    TimeoutCnt;
  85         uint    UnblockCnt;
  86         uint    WflushCnt;
  87         uint    WFBodgeCnt;
  88 };
  89 #endif
  90
  91 /*
  92 **      Port data structure
  93 */
  94 struct  Port
  95 {
  96   struct gs_port gs;
  97   int                           PortNum;        /* RIO port no., 0-511 */
  98   struct Host   *HostP;
  99   volatile caddr_t              Caddr;
 100   ushort                        HostPort;  /* Port number on host card */
 101   uchar                 RupNum; /* Number of RUP for port */
 102   uchar                 ID2;    /* Second ID of RTA for port */
 103   ulong                 State;  /* FLAGS for open & xopen */
 104 #define RIO_LOPEN       0x00001         /* Local open */
 105 #define RIO_MOPEN       0x00002         /* Modem open */
 106 #define RIO_WOPEN       0x00004         /* Waiting for open */
 107 #define RIO_CLOSING     0x00008         /* The port is being close */
 108 #define RIO_XPBUSY      0x00010         /* Transparent printer busy */
 109 #define RIO_BREAKING    0x00020         /* Break in progress */
 110 #define RIO_DIRECT      0x00040         /* Doing Direct output */
 111 #define RIO_EXCLUSIVE   0x00080         /* Stream open for exclusive use */
 112 #define RIO_NDELAY      0x00100         /* Stream is open FNDELAY */
 113 #define RIO_CARR_ON     0x00200         /* Stream has carrier present */
 114 #define RIO_XPWANTR     0x00400         /* Stream wanted by Xprint */
 115 #define RIO_RBLK        0x00800         /* Stream is read-blocked */
 116 #define RIO_BUSY        0x01000         /* Stream is BUSY for write */
 117 #define RIO_TIMEOUT     0x02000         /* Stream timeout in progress */
 118 #define RIO_TXSTOP      0x04000         /* Stream output is stopped */
 119 #define RIO_WAITFLUSH   0x08000         /* Stream waiting for flush */
 120 #define RIO_DYNOROD     0x10000         /* Drain failed */
 121 #define RIO_DELETED     0x20000         /* RTA has been deleted */
 122 #define RIO_ISSCANCODE  0x40000         /* This line is in scancode mode */
 123 #define RIO_USING_EUC   0x100000        /* Using extended Unix chars */
 124 #define RIO_CAN_COOK    0x200000        /* This line can do cooking */
 125 #define RIO_TRIAD_MODE  0x400000        /* Enable TRIAD special ops. */
 126 #define RIO_TRIAD_BLOCK 0x800000        /* Next read will block */
 127 #define RIO_TRIAD_FUNC  0x1000000       /* Seen a function key coming in */
 128 #define RIO_THROTTLE_RX 0x2000000       /* RX needs to be throttled. */
 129
 130     ulong                       Config; /* FLAGS for NOREAD.... */
 131 #define RIO_NOREAD      0x0001          /* Are not allowed to read port */
 132 #define RIO_NOWRITE     0x0002          /* Are not allowed to write port */
 133 #define RIO_NOXPRINT    0x0004          /* Are not allowed to xprint port */
 134 #define RIO_NOMASK      0x0007          /* All not allowed things */
 135 #define RIO_IXANY       0x0008          /* Port is allowed ixany */
 136 #define RIO_MODEM       0x0010          /* Stream is a modem device */
 137 #define RIO_IXON        0x0020          /* Port is allowed ixon */
 138 #define RIO_WAITDRAIN   0x0040          /* Wait for port to completely drain */
 139 #define RIO_MAP_50_TO_50        0x0080  /* Map 50 baud to 50 baud */
 140 #define RIO_MAP_110_TO_110      0x0100  /* Map 110 baud to 110 baud */
 141
 142 /*
 143 ** 15.10.1998 ARG - ESIL 0761 prt fix
 144 ** As LynxOS does not appear to support Hardware Flow Control .....
 145 ** Define our own flow control flags in 'Config'.
 146 */
 147 #define RIO_CTSFLOW     0x0200          /* RIO's own CTSFLOW flag */
 148 #define RIO_RTSFLOW     0x0400          /* RIO's own RTSFLOW flag */
 149
 150
 151     struct PHB                  *PhbP;    /* pointer to PHB for port */
 152     WORD                        *TxAdd;   /* Add packets here */
 153     WORD                        *TxStart; /* Start of add array */
 154     WORD                        *TxEnd;         /* End of add array */
 155     WORD                        *RxRemove;      /* Remove packets here */
 156     WORD                        *RxStart;       /* Start of remove array */
 157     WORD                        *RxEnd;         /* End of remove array */
 158     uint                        RtaUniqueNum;   /* Unique number of RTA */
 159     ushort                      PortState;      /* status of port */
 160     ushort                      ModemState;     /* status of modem lines */
 161     ulong                       ModemLines;     /* Modem bits sent to RTA */
 162     uchar                       CookMode;       /* who expands CR/LF? */
 163     uchar                       ParamSem;       /* Prevent write during param */
 164     uchar                       Mapped;         /* if port mapped onto host */
 165     uchar                       SecondBlock;    /* if port belongs to 2nd block
 166                                                    of 16 port RTA */
 167     uchar                       InUse;          /* how many pre-emptive cmds */
 168     uchar                       Lock;           /* if params locked */
 169     uchar                       Store;  /* if params stored across closes */
 170     uchar                       FirstOpen; /* TRUE if first time port opened */
 171     uchar                       FlushCmdBodge;  /* if doing a (non)flush */
 172     uchar                       MagicFlags;     /* require intr processing */
 173 #define MAGIC_FLUSH     0x01    /* mirror of WflushFlag */
 174 #define MAGIC_REBOOT    0x02    /* RTA re-booted, re-open ports */
 175 #define MORE_OUTPUT_EYGOR 0x04  /* riotproc failed to empty clists */
 176     uchar                       WflushFlag;     /* 1 How many WFLUSHs active */
 177 /*
 178 ** Transparent print stuff
 179 */
 180     struct Xprint
 181     {
 182 #ifndef MAX_XP_CTRL_LEN
 183 #define MAX_XP_CTRL_LEN         16              /* ALSO IN DAEMON.H */
 184 #endif
 185         uint                    XpCps;
 186         char                    XpOn[MAX_XP_CTRL_LEN];
 187         char                    XpOff[MAX_XP_CTRL_LEN];
 188         ushort                  XpLen;          /* strlen(XpOn)+strlen(XpOff) */
 189         uchar                   XpActive;
 190         uchar                   XpLastTickOk;   /* TRUE if we can process */
 191 #define XP_OPEN         00001
 192 #define XP_RUNABLE      00002
 193         struct ttystatics               *XttyP;
 194     } Xprint;
 195 #ifdef VPIX
 196     v86_t                       *StashP;
 197     uint                        IntMask;
 198     struct termss               VpixSs;
 199     uchar                       ModemStatusReg; /* Modem status register */
 200 #endif
 201     uchar                       RxDataStart;
 202     uchar                       Cor2Copy;       /* copy of COR2 */
 203     char                        *Name;          /* points to the Rta's name */
 204 #ifdef STATS
 205     struct RIOStats             Stat;           /* ports statistics */
 206 #endif
 207     char                        *TxRingBuffer;
 208     ushort                      TxBufferIn;     /* New data arrives here */
 209     ushort                      TxBufferOut;    /* Intr removes data here */
 210     ushort                      OldTxBufferOut; /* Indicates if draining */
 211     int                         TimeoutId;      /* Timeout ID */
 212     uint                        Debug;
 213     uchar                       WaitUntilBooted; /* True if open should block */
 214     uint                        statsGather;    /* True if gathering stats */
 215     ulong                       txchars;        /* Chars transmitted */
 216     ulong                       rxchars;        /* Chars received */
 217     ulong                       opens;          /* port open count */
 218     ulong                       closes;         /* port close count */
 219     ulong                       ioctls;         /* ioctl count */
 220     uchar                       LastRxTgl;      /* Last state of rx toggle bit */
 221   spinlock_t                            portSem;        /* Lock using this sem */
 222         int                             MonitorTstate;  /* Monitoring ? */
 223         int                             timeout_id;     /* For calling 100 ms delays */
 224         int                             timeout_sem;/* For calling 100 ms delays */
 225         int                             firstOpen;      /* First time open ? */
 226         char *                  p;                      /* save the global struc here .. */
 227 };
 228
 229 struct ModuleInfo
 230 {
 231         char    *Name;
 232         uint    Flags[4];       /* one per port on a module */
 233 };
 234 #endif
 235
 236 /*
 237 ** This struct is required because trying to grab an entire Port structure
 238 ** runs into problems with differing struct sizes between driver and config.
 239 */
 240 struct PortParams {
 241         uint    Port;
 242         ulong   Config;
 243         ulong   State;
 244         struct ttystatics       *TtyP;
 245 };