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 /*
  37 **      Port data structure
  38 */
  39 struct Port {
  40         struct gs_port gs;
  41         int PortNum;                    /* RIO port no., 0-511 */
  42         struct Host *HostP;
  43         void __iomem *Caddr;
  44         unsigned short HostPort;        /* Port number on host card */
  45         unsigned char RupNum;           /* Number of RUP for port */
  46         unsigned char ID2;              /* Second ID of RTA for port */
  47         unsigned long State;            /* FLAGS for open & xopen */
  48 #define RIO_LOPEN       0x00001         /* Local open */
  49 #define RIO_MOPEN       0x00002         /* Modem open */
  50 #define RIO_WOPEN       0x00004         /* Waiting for open */
  51 #define RIO_CLOSING     0x00008         /* The port is being close */
  52 #define RIO_XPBUSY      0x00010         /* Transparent printer busy */
  53 #define RIO_BREAKING    0x00020         /* Break in progress */
  54 #define RIO_DIRECT      0x00040         /* Doing Direct output */
  55 #define RIO_EXCLUSIVE   0x00080         /* Stream open for exclusive use */
  56 #define RIO_NDELAY      0x00100         /* Stream is open FNDELAY */
  57 #define RIO_CARR_ON     0x00200         /* Stream has carrier present */
  58 #define RIO_XPWANTR     0x00400         /* Stream wanted by Xprint */
  59 #define RIO_RBLK        0x00800         /* Stream is read-blocked */
  60 #define RIO_BUSY        0x01000         /* Stream is BUSY for write */
  61 #define RIO_TIMEOUT     0x02000         /* Stream timeout in progress */
  62 #define RIO_TXSTOP      0x04000         /* Stream output is stopped */
  63 #define RIO_WAITFLUSH   0x08000         /* Stream waiting for flush */
  64 #define RIO_DYNOROD     0x10000         /* Drain failed */
  65 #define RIO_DELETED     0x20000         /* RTA has been deleted */
  66 #define RIO_ISSCANCODE  0x40000         /* This line is in scancode mode */
  67 #define RIO_USING_EUC   0x100000        /* Using extended Unix chars */
  68 #define RIO_CAN_COOK    0x200000        /* This line can do cooking */
  69 #define RIO_TRIAD_MODE  0x400000        /* Enable TRIAD special ops. */
  70 #define RIO_TRIAD_BLOCK 0x800000        /* Next read will block */
  71 #define RIO_TRIAD_FUNC  0x1000000       /* Seen a function key coming in */
  72 #define RIO_THROTTLE_RX 0x2000000       /* RX needs to be throttled. */
  73
  74         unsigned long Config;           /* FLAGS for NOREAD.... */
  75 #define RIO_NOREAD      0x0001          /* Are not allowed to read port */
  76 #define RIO_NOWRITE     0x0002          /* Are not allowed to write port */
  77 #define RIO_NOXPRINT    0x0004          /* Are not allowed to xprint port */
  78 #define RIO_NOMASK      0x0007          /* All not allowed things */
  79 #define RIO_IXANY       0x0008          /* Port is allowed ixany */
  80 #define RIO_MODEM       0x0010          /* Stream is a modem device */
  81 #define RIO_IXON        0x0020          /* Port is allowed ixon */
  82 #define RIO_WAITDRAIN   0x0040          /* Wait for port to completely drain */
  83 #define RIO_MAP_50_TO_50        0x0080  /* Map 50 baud to 50 baud */
  84 #define RIO_MAP_110_TO_110      0x0100  /* Map 110 baud to 110 baud */
  85
  86 /*
  87 ** 15.10.1998 ARG - ESIL 0761 prt fix
  88 ** As LynxOS does not appear to support Hardware Flow Control .....
  89 ** Define our own flow control flags in 'Config'.
  90 */
  91 #define RIO_CTSFLOW     0x0200          /* RIO's own CTSFLOW flag */
  92 #define RIO_RTSFLOW     0x0400          /* RIO's own RTSFLOW flag */
  93
  94
  95         struct PHB __iomem *PhbP;       /* pointer to PHB for port */
  96         u16 __iomem *TxAdd;             /* Add packets here */
  97         u16 __iomem *TxStart;           /* Start of add array */
  98         u16 __iomem *TxEnd;             /* End of add array */
  99         u16 __iomem *RxRemove;          /* Remove packets here */
 100         u16 __iomem *RxStart;           /* Start of remove array */
 101         u16 __iomem *RxEnd;             /* End of remove array */
 102         unsigned int RtaUniqueNum;      /* Unique number of RTA */
 103         unsigned short PortState;       /* status of port */
 104         unsigned short ModemState;      /* status of modem lines */
 105         unsigned long ModemLines;       /* Modem bits sent to RTA */
 106         unsigned char CookMode;         /* who expands CR/LF? */
 107         unsigned char ParamSem;         /* Prevent write during param */
 108         unsigned char Mapped;           /* if port mapped onto host */
 109         unsigned char SecondBlock;      /* if port belongs to 2nd block
 110                                                 of 16 port RTA */
 111         unsigned char InUse;            /* how many pre-emptive cmds */
 112         unsigned char Lock;             /* if params locked */
 113         unsigned char Store;            /* if params stored across closes */
 114         unsigned char FirstOpen;        /* TRUE if first time port opened */
 115         unsigned char FlushCmdBodge;    /* if doing a (non)flush */
 116         unsigned char MagicFlags;       /* require intr processing */
 117 #define MAGIC_FLUSH     0x01            /* mirror of WflushFlag */
 118 #define MAGIC_REBOOT    0x02            /* RTA re-booted, re-open ports */
 119 #define MORE_OUTPUT_EYGOR 0x04          /* riotproc failed to empty clists */
 120         unsigned char WflushFlag;       /* 1 How many WFLUSHs active */
 121 /*
 122 ** Transparent print stuff
 123 */
 124         struct Xprint {
 125 #ifndef MAX_XP_CTRL_LEN
 126 #define MAX_XP_CTRL_LEN         16      /* ALSO IN DAEMON.H */
 127 #endif
 128                 unsigned int XpCps;
 129                 char XpOn[MAX_XP_CTRL_LEN];
 130                 char XpOff[MAX_XP_CTRL_LEN];
 131                 unsigned short XpLen;   /* strlen(XpOn)+strlen(XpOff) */
 132                 unsigned char XpActive;
 133                 unsigned char XpLastTickOk;     /* TRUE if we can process */
 134 #define XP_OPEN         00001
 135 #define XP_RUNABLE      00002
 136                 struct ttystatics *XttyP;
 137         } Xprint;
 138         unsigned char RxDataStart;
 139         unsigned char Cor2Copy;         /* copy of COR2 */
 140         char *Name;                     /* points to the Rta's name */
 141         char *TxRingBuffer;
 142         unsigned short TxBufferIn;      /* New data arrives here */
 143         unsigned short TxBufferOut;     /* Intr removes data here */
 144         unsigned short OldTxBufferOut;  /* Indicates if draining */
 145         int TimeoutId;                  /* Timeout ID */
 146         unsigned int Debug;
 147         unsigned char WaitUntilBooted;  /* True if open should block */
 148         unsigned int statsGather;       /* True if gathering stats */
 149         unsigned long txchars;          /* Chars transmitted */
 150         unsigned long rxchars;          /* Chars received */
 151         unsigned long opens;            /* port open count */
 152         unsigned long closes;           /* port close count */
 153         unsigned long ioctls;           /* ioctl count */
 154         unsigned char LastRxTgl;        /* Last state of rx toggle bit */
 155         spinlock_t portSem;             /* Lock using this sem */
 156         int MonitorTstate;              /* Monitoring ? */
 157         int timeout_id;                 /* For calling 100 ms delays */
 158         int timeout_sem;                /* For calling 100 ms delays */
 159         int firstOpen;                  /* First time open ? */
 160         char *p;                        /* save the global struc here .. */
 161 };
 162
 163 struct ModuleInfo {
 164         char *Name;
 165         unsigned int Flags[4];          /* one per port on a module */
 166 };
 167
 168 /*
 169 ** This struct is required because trying to grab an entire Port structure
 170 ** runs into problems with differing struct sizes between driver and config.
 171 */
 172 struct PortParams {
 173         unsigned int Port;
 174         unsigned long Config;
 175         unsigned long State;
 176         struct ttystatics *TtyP;
 177 };
 178
 179 #endif