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          ** interrupt statistics
  52          */
  53         uint BreakIntCnt;
  54         uint ModemOffCnt;
  55         uint ModemOnCnt;
  56         uint RxIntCnt;
  57         uint TxIntCnt;
  58         /*
  59          ** throughput statistics
  60          */
  61         uint RxCharCnt;
  62         uint RxPktCnt;
  63         uint RxSaveCnt;
  64         uint TxCharCnt;
  65         uint TxPktCnt;
  66         /*
  67          ** driver entry statistics
  68          */
  69         uint CloseCnt;
  70         uint IoctlCnt;
  71         uint OpenCnt;
  72         uint ReadCnt;
  73         uint WriteCnt;
  74         /*
  75          ** proc statistics
  76          */
  77         uint BlockCnt;
  78         uint OutputCnt;
  79         uint ResumeCnt;
  80         uint RflushCnt;
  81         uint SuspendCnt;
  82         uint TbreakCnt;
  83         uint TimeoutCnt;
  84         uint UnblockCnt;
  85         uint WflushCnt;
  86         uint WFBodgeCnt;
  87 };
  88 #endif
  89
  90 /*
  91 **      Port data structure
  92 */
  93 struct Port {
  94         struct gs_port gs;
  95         int PortNum;            /* RIO port no., 0-511 */
  96         struct Host *HostP;
  97         volatile caddr_t Caddr;
  98         ushort HostPort;        /* Port number on host card */
  99         uchar RupNum;           /* Number of RUP for port */
 100         uchar ID2;              /* Second ID of RTA for port */
 101         ulong State;            /* FLAGS for open & xopen */
 102 #define RIO_LOPEN       0x00001 /* Local open */
 103 #define RIO_MOPEN       0x00002 /* Modem open */
 104 #define RIO_WOPEN       0x00004 /* Waiting for open */
 105 #define RIO_CLOSING     0x00008 /* The port is being close */
 106 #define RIO_XPBUSY      0x00010 /* Transparent printer busy */
 107 #define RIO_BREAKING    0x00020 /* Break in progress */
 108 #define RIO_DIRECT      0x00040 /* Doing Direct output */
 109 #define RIO_EXCLUSIVE   0x00080 /* Stream open for exclusive use */
 110 #define RIO_NDELAY      0x00100 /* Stream is open FNDELAY */
 111 #define RIO_CARR_ON     0x00200 /* Stream has carrier present */
 112 #define RIO_XPWANTR     0x00400 /* Stream wanted by Xprint */
 113 #define RIO_RBLK        0x00800 /* Stream is read-blocked */
 114 #define RIO_BUSY        0x01000 /* Stream is BUSY for write */
 115 #define RIO_TIMEOUT     0x02000 /* Stream timeout in progress */
 116 #define RIO_TXSTOP      0x04000 /* Stream output is stopped */
 117 #define RIO_WAITFLUSH   0x08000 /* Stream waiting for flush */
 118 #define RIO_DYNOROD     0x10000 /* Drain failed */
 119 #define RIO_DELETED     0x20000 /* RTA has been deleted */
 120 #define RIO_ISSCANCODE  0x40000 /* This line is in scancode mode */
 121 #define RIO_USING_EUC   0x100000        /* Using extended Unix chars */
 122 #define RIO_CAN_COOK    0x200000        /* This line can do cooking */
 123 #define RIO_TRIAD_MODE  0x400000        /* Enable TRIAD special ops. */
 124 #define RIO_TRIAD_BLOCK 0x800000        /* Next read will block */
 125 #define RIO_TRIAD_FUNC  0x1000000       /* Seen a function key coming in */
 126 #define RIO_THROTTLE_RX 0x2000000       /* RX needs to be throttled. */
 127
 128         ulong Config;           /* FLAGS for NOREAD.... */
 129 #define RIO_NOREAD      0x0001  /* Are not allowed to read port */
 130 #define RIO_NOWRITE     0x0002  /* Are not allowed to write port */
 131 #define RIO_NOXPRINT    0x0004  /* Are not allowed to xprint port */
 132 #define RIO_NOMASK      0x0007  /* All not allowed things */
 133 #define RIO_IXANY       0x0008  /* Port is allowed ixany */
 134 #define RIO_MODEM       0x0010  /* Stream is a modem device */
 135 #define RIO_IXON        0x0020  /* Port is allowed ixon */
 136 #define RIO_WAITDRAIN   0x0040  /* Wait for port to completely drain */
 137 #define RIO_MAP_50_TO_50        0x0080  /* Map 50 baud to 50 baud */
 138 #define RIO_MAP_110_TO_110      0x0100  /* Map 110 baud to 110 baud */
 139
 140 /*
 141 ** 15.10.1998 ARG - ESIL 0761 prt fix
 142 ** As LynxOS does not appear to support Hardware Flow Control .....
 143 ** Define our own flow control flags in 'Config'.
 144 */
 145 #define RIO_CTSFLOW     0x0200  /* RIO's own CTSFLOW flag */
 146 #define RIO_RTSFLOW     0x0400  /* RIO's own RTSFLOW flag */
 147
 148
 149         struct PHB *PhbP;       /* pointer to PHB for port */
 150         WORD *TxAdd;            /* Add packets here */
 151         WORD *TxStart;          /* Start of add array */
 152         WORD *TxEnd;            /* End of add array */
 153         WORD *RxRemove;         /* Remove packets here */
 154         WORD *RxStart;          /* Start of remove array */
 155         WORD *RxEnd;            /* End of remove array */
 156         uint RtaUniqueNum;      /* Unique number of RTA */
 157         ushort PortState;       /* status of port */
 158         ushort ModemState;      /* status of modem lines */
 159         ulong ModemLines;       /* Modem bits sent to RTA */
 160         uchar CookMode;         /* who expands CR/LF? */
 161         uchar ParamSem;         /* Prevent write during param */
 162         uchar Mapped;           /* if port mapped onto host */
 163         uchar SecondBlock;      /* if port belongs to 2nd block
 164                                    of 16 port RTA */
 165         uchar InUse;            /* how many pre-emptive cmds */
 166         uchar Lock;             /* if params locked */
 167         uchar Store;            /* if params stored across closes */
 168         uchar FirstOpen;        /* TRUE if first time port opened */
 169         uchar FlushCmdBodge;    /* if doing a (non)flush */
 170         uchar MagicFlags;       /* require intr processing */
 171 #define MAGIC_FLUSH     0x01    /* mirror of WflushFlag */
 172 #define MAGIC_REBOOT    0x02    /* RTA re-booted, re-open ports */
 173 #define MORE_OUTPUT_EYGOR 0x04  /* riotproc failed to empty clists */
 174         uchar WflushFlag;       /* 1 How many WFLUSHs active */
 175 /*
 176 ** Transparent print stuff
 177 */
 178         struct Xprint {
 179 #ifndef MAX_XP_CTRL_LEN
 180 #define MAX_XP_CTRL_LEN         16      /* ALSO IN DAEMON.H */
 181 #endif
 182                 uint XpCps;
 183                 char XpOn[MAX_XP_CTRL_LEN];
 184                 char XpOff[MAX_XP_CTRL_LEN];
 185                 ushort XpLen;   /* strlen(XpOn)+strlen(XpOff) */
 186                 uchar XpActive;
 187                 uchar XpLastTickOk;     /* TRUE if we can process */
 188 #define XP_OPEN         00001
 189 #define XP_RUNABLE      00002
 190                 struct ttystatics *XttyP;
 191         } Xprint;
 192 #ifdef VPIX
 193         v86_t *StashP;
 194         uint IntMask;
 195         struct termss VpixSs;
 196         uchar ModemStatusReg;   /* Modem status register */
 197 #endif
 198         uchar RxDataStart;
 199         uchar Cor2Copy;         /* copy of COR2 */
 200         char *Name;             /* points to the Rta's name */
 201 #ifdef STATS
 202         struct RIOStats Stat;   /* ports statistics */
 203 #endif
 204         char *TxRingBuffer;
 205         ushort TxBufferIn;      /* New data arrives here */
 206         ushort TxBufferOut;     /* Intr removes data here */
 207         ushort OldTxBufferOut;  /* Indicates if draining */
 208         int TimeoutId;          /* Timeout ID */
 209         uint Debug;
 210         uchar WaitUntilBooted;  /* True if open should block */
 211         uint statsGather;       /* True if gathering stats */
 212         ulong txchars;          /* Chars transmitted */
 213         ulong rxchars;          /* Chars received */
 214         ulong opens;            /* port open count */
 215         ulong closes;           /* port close count */
 216         ulong ioctls;           /* ioctl count */
 217         uchar LastRxTgl;        /* Last state of rx toggle bit */
 218         spinlock_t portSem;     /* Lock using this sem */
 219         int MonitorTstate;      /* Monitoring ? */
 220         int timeout_id;         /* For calling 100 ms delays */
 221         int timeout_sem;        /* For calling 100 ms delays */
 222         int firstOpen;          /* First time open ? */
 223         char *p;                /* save the global struc here .. */
 224 };
 225
 226 struct ModuleInfo {
 227         char *Name;
 228         uint Flags[4];          /* one per port on a module */
 229 };
 230 #endif
 231
 232 /*
 233 ** This struct is required because trying to grab an entire Port structure
 234 ** runs into problems with differing struct sizes between driver and config.
 235 */
 236 struct PortParams {
 237         uint Port;
 238         ulong Config;
 239         ulong State;
 240         struct ttystatics *TtyP;
 241 };