usr/src/uts/common/sys/ptyvar.h

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 1989-2003 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*
  28  * Pseudo-tty driver data structures.
  29  */
  30
  31 #ifndef _SYS_PTYVAR_H
  32 #define _SYS_PTYVAR_H
  33
  34 #pragma ident   "%Z%%M% %I%     %E% SMI"
  35
  36 #include <sys/tty.h>
  37
  38 #ifdef  __cplusplus
  39 extern "C" {
  40 #endif
  41
  42 struct pty {
  43         int     pt_flags;               /* flag bits */
  44         mblk_t  *pt_stuffqfirst;        /* head of queue for ioctls */
  45         mblk_t  *pt_stuffqlast;         /* tail of queue for ioctls */
  46         int     pt_stuffqlen;           /* number of bytes of queued ioctls */
  47         tty_common_t pt_ttycommon;      /* data common to all tty drivers */
  48         bufcall_id_t pt_wbufcid;        /* id of pending write-side bufcall */
  49         struct proc *pt_selr;           /* proc selecting on controller read */
  50         struct proc *pt_selw;           /* proc selecting on controller write */
  51         struct proc *pt_sele;           /* proc selecting on exception */
  52         dev_t   pt_sdev;                /* XXX dev no for the slave */
  53         struct vnode *pt_vnode;         /* XXX vnode for the slave */
  54         short   pt_pgrp;                /* controller side process group */
  55         uchar_t pt_send;                /* pending message to controller */
  56         uchar_t pt_ucntl;               /* pending iocontrol for controller */
  57         kmutex_t ptc_lock;              /* per pty mutex lock */
  58         kcondvar_t pt_cv_flags;         /* condition variable for flag state */
  59         kcondvar_t pt_cv_readq;         /* condition variable for read state */
  60         kcondvar_t pt_cv_writeq;        /* condition variable for write state */
  61 };
  62
  63 #define PF_RCOLL        0x00000001      /* > 1 process selecting for read */
  64 #define PF_WCOLL        0x00000002      /* > 1 process selecting for write */
  65 #define PF_ECOLL        0x00000004      /* > 1 process selecting for excep. */
  66 #define PF_NBIO         0x00000008      /* non-blocking I/O on controller */
  67 #define PF_ASYNC        0x00000010      /* asynchronous I/O on controller */
  68 #define PF_WOPEN        0x00000020      /* waiting for open to complete */
  69 #define PF_CARR_ON      0x00000040      /* "carrier" is on (cntlr. is open) */
  70 #define PF_SLAVEGONE    0x00000080      /* slave was open, but is now closed */
  71 #define PF_PKT          0x00000100      /* packet mode */
  72 #define PF_STOPPED      0x00000200      /* user told stopped */
  73 #define PF_REMOTE       0x00000400      /* remote and flow controlled input */
  74 #define PF_NOSTOP       0x00000800      /* slave is doing XON/XOFF */
  75 #define PF_UCNTL        0x00001000      /* user control mode */
  76 #define PF_43UCNTL      0x00002000      /* real 4.3 user control mode */
  77 #define PF_IOCTL        0x00004000      /* ioctl call in progress */
  78 #define PF_WAIT         0x00008000      /* wait in close */
  79 #define PF_READ         0x00010000      /* serialise read */
  80 #define PF_WRITE        0x00020000      /* serialise write */
  81 #define PF_WREAD        0x00040000      /* want to read */
  82 #define PF_WWRITE       0x00080000      /* want to write */
  83
  84 /*
  85  * M_CTL message types.
  86  */
  87 #define MC_NOCANON      0       /* module below saying it will canonicalize */
  88 #define MC_DOCANON      1       /* module below saying it won't canonicalize */
  89 #define MC_CANONQUERY   2       /* module above asking whether module below */
  90                                 /* canonicalizes */
  91 #define MC_SERVICEIMM   3       /* tell the ZS driver to return input */
  92                                 /* immediately */
  93 #define MC_SERVICEDEF   4       /* tell the ZS driver it can wait */
  94 #define MC_NOIFLAG      5       /* module below saying don't do i flags */
  95 #define MC_NOOFLAG      6       /* module below saying don't do o flags */
  96 #define MC_NOLFLAG      7       /* module below saying don't do l flags */
  97
  98
  99 /*
 100  * Thus stuff is from the 4.1 termios.h, but we don't want to
 101  * put it in the real system, so we hide it here.
 102  */
 103
 104 /*
 105  * Sun version of winsize.
 106  */
 107 struct ttysize {
 108         int     ts_lines;               /* number of lines on terminal */
 109         int     ts_cols;                /* number of columns on terminal */
 110 };
 111
 112
 113 #define TIOCPKT         _IOW('t', 112, int)     /* pty: set/clear packet mode */
 114 #define         TIOCPKT_DATA            0x00    /* data packet */
 115 #define         TIOCPKT_FLUSHREAD       0x01    /* flush data not yet written */
 116                                                 /* to controller */
 117 #define         TIOCPKT_FLUSHWRITE      0x02    /* flush data read from */
 118                                                 /* controller but not yet */
 119                                                 /* processed */
 120 #define         TIOCPKT_STOP            0x04    /* stop output */
 121 #define         TIOCPKT_START           0x08    /* start output */
 122 #define         TIOCPKT_NOSTOP          0x10    /* no more ^S, ^Q */
 123 #define         TIOCPKT_DOSTOP          0x20    /* now do ^S, ^Q */
 124 #define         TIOCPKT_IOCTL           0x40    /* "ioctl" packet */
 125
 126 #define TIOCUCNTL       _IOW('t', 102, int)     /* pty: set/clr usr cntl mode */
 127 #define TIOCTCNTL       _IOW('t', 32, int)      /* pty: set/clr intercept */
 128                                                 /* ioctl mode */
 129 #define TIOCISPACE      _IOR('t', 128, int)     /* space left in input queue */
 130 #define TIOCISIZE       _IOR('t', 129, int)     /* size of input queue */
 131
 132 #define TIOCSSIZE       _IOW('t', 37, struct ttysize) /* set tty size */
 133 #define TIOCGSIZE       _IOR('t', 38, struct ttysize) /* get tty size */
 134
 135 #ifdef _KERNEL
 136
 137 /*
 138  * pty_softc, npty, ptcph, and pty_initspace are defined in tty_ptyconf.c
 139  */
 140
 141 extern int      npty;
 142 extern struct   pty *pty_softc;
 143 extern struct   pollhead ptcph;
 144 extern void     pty_initspace(void);
 145
 146 /*
 147  * define the Berkeley style naming convention
 148  */
 149 #define PTY_BANKS       "pqrstuvwxyz"
 150 #define PTY_DIGITS      "0123456789abcdef"
 151 #endif /* _KERNEL */
 152
 153 #ifdef  __cplusplus
 154 }
 155 #endif
 156
 157 #endif  /* _SYS_PTYVAR_H */