xnu-7195.50.7.100.1.tar.gz

[apple/xnu.git] / bsd / sys / tty.h

diff --git a/bsd/sys/tty.h b/bsd/sys/tty.h
index ecfb234d5ba4a4e995b9ddd12bbf7ae009ca9edd..b849f3aeba16fe3b3a7dd8619cb7581da59f224b 100644 (file)
--- a/bsd/sys/tty.h
+++ b/bsd/sys/tty.h
@@ -1,8 +1,8 @@
 /*
 /*

- * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2018 Apple Inc. All rights reserved.

  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@

- * 
+ *

  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in


@@ -11,10 +11,10 @@
  * unlawful or unlicensed copies of an Apple operating system, or to
  * circumvent, violate, or enable the circumvention or violation of, any
  * terms of an Apple operating system software license agreement.
  * unlawful or unlicensed copies of an Apple operating system, or to
  * circumvent, violate, or enable the circumvention or violation of, any
  * terms of an Apple operating system software license agreement.

- * 
+ *

  * Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  * Please obtain a copy of the License at
  * http://www.opensource.apple.com/apsl/ and read it before using this file.

- * 
+ *

  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,


@@ -22,7 +22,7 @@
  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  * Please see the License for the specific language governing rights and
  * limitations under the License.

- * 
+ *

  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /* Copyright (c) 1997 Apple Computer, Inc. All Rights Reserved */
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /* Copyright (c) 1997 Apple Computer, Inc. All Rights Reserved */


@@ -67,12 +67,12 @@
  */
 
 #ifndef _SYS_TTY_H_
  */
 
 #ifndef _SYS_TTY_H_

-#define        _SYS_TTY_H_
+#define _SYS_TTY_H_

 
 #include <sys/appleapiopts.h>
 #include <sys/cdefs.h>
 #include <sys/termios.h>
 
 #include <sys/appleapiopts.h>
 #include <sys/cdefs.h>
 #include <sys/termios.h>

-#include <sys/select.h>                /* For struct selinfo. */
+#include <sys/select.h>         /* For struct selinfo. */

 
 
 #ifdef KERNEL
 
 
 #ifdef KERNEL


@@ -86,24 +86,23 @@ __END_DECLS
  * exactly the same behaviour as in true clists.
  * if c_cq is NULL, the ring buffer has no TTY_QUOTE functionality
  * (but, saves memory and cpu time)
  * exactly the same behaviour as in true clists.
  * if c_cq is NULL, the ring buffer has no TTY_QUOTE functionality
  * (but, saves memory and cpu time)

- * 
+ *

  * *DON'T* play with c_cs, c_ce, c_cq, or c_cl outside tty_subr.c!!!
  */
 struct clist {
  * *DON'T* play with c_cs, c_ce, c_cq, or c_cl outside tty_subr.c!!!
  */
 struct clist {

-       int     c_cc;           /* count of characters in queue */
-       int     c_cn;           /* total ring buffer length */
-       u_char  *c_cf;          /* points to first character */
-       u_char  *c_cl;          /* points to next open character */
-       u_char  *c_cs;          /* start of ring buffer */
-       u_char  *c_ce;          /* c_ce + c_len */
-       u_char  *c_cq;          /* N bits/bytes long, see tty_subr.c */
+       int     c_cc;           /* count of characters in queue */
+       int     c_cn;           /* total ring buffer length */
+       u_char  *c_cf;          /* points to first character */
+       u_char  *c_cl;          /* points to next open character */
+       u_char  *c_cs;          /* start of ring buffer */
+       u_char  *c_ce;          /* c_ce + c_len */
+       u_char  *c_cq;          /* N bits/bytes long, see tty_subr.c */

 };
 
 #ifndef TTYCLSIZE
 #define TTYCLSIZE 1024
 #endif
 
 };
 
 #ifndef TTYCLSIZE
 #define TTYCLSIZE 1024
 #endif
 

-

 /*
  * Per-tty structure.
  *
 /*
  * Per-tty structure.
  *


@@ -112,224 +111,235 @@ struct clist {
  * (low, high, timeout).
  */
 struct tty {
  * (low, high, timeout).
  */
 struct tty {

-       lck_mtx_t       t_lock;         /* Per tty lock */
-
-       struct  clist t_rawq;           /* Device raw input queue. */
-       long    t_rawcc;                /* Raw input queue statistics. */
-       struct  clist t_canq;           /* Device canonical queue. */
-       long    t_cancc;                /* Canonical queue statistics. */
-       struct  clist t_outq;           /* Device output queue. */
-       long    t_outcc;                /* Output queue statistics. */
-       int     t_line;                 /* Interface to device drivers. */
-       dev_t   t_dev;                  /* Device. */
-       int     t_state;                /* Device and driver (TS*) state. */
-       int     t_flags;                /* Tty flags. */
+       lck_mtx_t       t_lock;         /* Per tty lock */
+
+       struct  clist t_rawq;           /* Device raw input queue. */
+       long    t_rawcc;                /* Raw input queue statistics. */
+       struct  clist t_canq;           /* Device canonical queue. */
+       long    t_cancc;                /* Canonical queue statistics. */
+       struct  clist t_outq;           /* Device output queue. */
+       long    t_outcc;                /* Output queue statistics. */
+       int     t_line;                 /* Interface to device drivers. */
+       dev_t   t_dev;                  /* Device. */
+       int     t_state;                /* Device and driver (TS*) state. */
+       int     t_flags;                /* Tty flags. */

        int     t_timeout;              /* Timeout for ttywait() */
        int     t_timeout;              /* Timeout for ttywait() */

-       struct  pgrp *t_pgrp;           /* Foreground process group. */
-       struct  session *t_session;     /* Enclosing session. */
-       struct  selinfo t_rsel;         /* Tty read/oob select. */
-       struct  selinfo t_wsel;         /* Tty write select. */
-       struct  termios t_termios;      /* Termios state. */
-       struct  winsize t_winsize;      /* Window size. */
-                                       /* Start output. */
-       void    (*t_oproc)(struct tty *);
-                                       /* Stop output. */
-       void    (*t_stop)(struct tty *, int);
-                                       /* Set hardware state. */
-       int     (*t_param)(struct tty *, struct termios *);
-       void    *t_sc;                  /* XXX: net/if_sl.c:sl_softc. */
-       int     t_column;               /* Tty output column. */
-       int     t_rocount, t_rocol;     /* Tty. */
-       int     t_hiwat;                /* High water mark. */
-       int     t_lowat;                /* Low water mark. */
-       int     t_gen;                  /* Generation number. */
-       void    *t_iokit;               /* IOKit management */
+       struct  pgrp *t_pgrp;           /* Foreground process group. */
+       struct  session *t_session;     /* Enclosing session. */
+       struct  selinfo t_rsel;         /* Tty read/oob select. */
+       struct  selinfo t_wsel;         /* Tty write select. */
+       struct  termios t_termios;      /* Termios state. */
+       struct  winsize t_winsize;      /* Window size. */
+                                       /* Start output. */
+       void    (*t_oproc)(struct tty *);
+       /* Stop output. */
+       void    (*t_stop)(struct tty *, int);
+       /* Set hardware state. */
+       int     (*t_param)(struct tty *, struct termios *);
+       void    *t_sc;                  /* XXX: net/if_sl.c:sl_softc. */
+       int     t_column;               /* Tty output column. */
+       int     t_rocount, t_rocol;     /* Tty. */
+       int     t_hiwat;                /* High water mark. */
+       int     t_lowat;                /* Low water mark. */
+       int     t_gen;                  /* Generation number. */
+       void    *t_iokit;               /* IOKit management */
+       int     t_refcnt;               /* reference count */

 };
 
 };
 

-#define TTY_NULL (struct tty *)0
+#define TTY_NULL (struct tty *)NULL

 
 

-#define        t_cc            t_termios.c_cc
-#define        t_cflag         t_termios.c_cflag
-#define        t_iflag         t_termios.c_iflag
-#define        t_ispeed        t_termios.c_ispeed
-#define        t_lflag         t_termios.c_lflag
-#define        t_min           t_termios.c_min
-#define        t_oflag         t_termios.c_oflag
-#define        t_ospeed        t_termios.c_ospeed
-#define        t_time          t_termios.c_time
+#define t_cc            t_termios.c_cc
+#define t_cflag         t_termios.c_cflag
+#define t_iflag         t_termios.c_iflag
+#define t_ispeed        t_termios.c_ispeed
+#define t_lflag         t_termios.c_lflag
+#define t_min           t_termios.c_min
+#define t_oflag         t_termios.c_oflag
+#define t_ospeed        t_termios.c_ospeed
+#define t_time          t_termios.c_time

 
 
 
 

-#define        TTIPRI  25                      /* Sleep priority for tty reads. */
-#define        TTOPRI  26                      /* Sleep priority for tty writes. */
+#define TTIPRI  25                      /* Sleep priority for tty reads. */
+#define TTOPRI  26                      /* Sleep priority for tty writes. */

 
 /*
  * User data unfortunately has to be copied through buffers on the way to
  * and from clists.  The buffers are on the stack so their sizes must be
  * fairly small.
  */
 
 /*
  * User data unfortunately has to be copied through buffers on the way to
  * and from clists.  The buffers are on the stack so their sizes must be
  * fairly small.
  */

-#define        IBUFSIZ 384                     /* Should be >= max value of MIN. */
-#define        OBUFSIZ 100
+#define IBUFSIZ 384                     /* Should be >= max value of MIN. */
+#define OBUFSIZ 100

 
 #ifndef TTYHOG
 
 #ifndef TTYHOG

-#define        TTYHOG  1024
+#define TTYHOG  1024

 #endif
 
 #endif
 

-#define        TTMAXHIWAT      roundup(2048, CBSIZE)
-#define        TTMINHIWAT      roundup(100, CBSIZE)
-#define        TTMAXLOWAT      256
-#define        TTMINLOWAT      32
+#define TTMAXHIWAT      roundup(2048, CBSIZE)
+#define TTMINHIWAT      roundup(100, CBSIZE)
+#define TTMAXLOWAT      256
+#define TTMINLOWAT      32

 #else
 struct tty;
 struct clist;
 #endif /* KERNEL */
 
 /* These flags are kept in t_state. */
 #else
 struct tty;
 struct clist;
 #endif /* KERNEL */
 
 /* These flags are kept in t_state. */

-#define        TS_SO_OLOWAT    0x00001         /* Wake up when output <= low water. */
-#define        TS_ASYNC        0x00002         /* Tty in async I/O mode. */
-#define        TS_BUSY         0x00004         /* Draining output. */
-#define        TS_CARR_ON      0x00008         /* Carrier is present. */
-#define        TS_FLUSH        0x00010         /* Outq has been flushed during DMA. */
-#define        TS_ISOPEN       0x00020         /* Open has completed. */
-#define        TS_TBLOCK       0x00040         /* Further input blocked. */
-#define        TS_TIMEOUT      0x00080         /* Wait for output char processing. */
-#define        TS_TTSTOP       0x00100         /* Output paused. */
+#define TS_SO_OLOWAT    0x00001         /* Wake up when output <= low water. */
+#define TS_ASYNC        0x00002         /* Tty in async I/O mode. */
+#define TS_BUSY         0x00004         /* Draining output. */
+#define TS_CARR_ON      0x00008         /* Carrier is present. */
+#define TS_FLUSH        0x00010         /* Outq has been flushed during DMA. */
+#define TS_ISOPEN       0x00020         /* Open has completed. */
+#define TS_TBLOCK       0x00040         /* Further input blocked. */
+#define TS_TIMEOUT      0x00080         /* Wait for output char processing. */
+#define TS_TTSTOP       0x00100         /* Output paused. */

 #ifdef notyet
 #ifdef notyet

-#define        TS_WOPEN        0x00200         /* Open in progress. */
+#define TS_WOPEN        0x00200         /* Open in progress. */

 #endif
 #endif

-#define        TS_XCLUDE       0x00400         /* Tty requires exclusivity. */
+#define TS_XCLUDE       0x00400         /* Tty requires exclusivity. */

 
 /* State for intra-line fancy editing work. */
 
 /* State for intra-line fancy editing work. */

-#define        TS_BKSL         0x00800         /* State for lowercase \ work. */
-#define        TS_CNTTB        0x01000         /* Counting tab width, ignore FLUSHO. */
-#define        TS_ERASE        0x02000         /* Within a \.../ for PRTRUB. */
-#define        TS_LNCH         0x04000         /* Next character is literal. */
-#define        TS_TYPEN        0x08000         /* Retyping suspended input (PENDIN). */
-#define        TS_LOCAL        (TS_BKSL | TS_CNTTB | TS_ERASE | TS_LNCH | TS_TYPEN)
+#define TS_BKSL         0x00800         /* State for lowercase \ work. */
+#define TS_CNTTB        0x01000         /* Counting tab width, ignore FLUSHO. */
+#define TS_ERASE        0x02000         /* Within a \.../ for PRTRUB. */
+#define TS_LNCH         0x04000         /* Next character is literal. */
+#define TS_TYPEN        0x08000         /* Retyping suspended input (PENDIN). */
+#define TS_LOCAL        (TS_BKSL | TS_CNTTB | TS_ERASE | TS_LNCH | TS_TYPEN)

 
 /* Extras. */
 
 /* Extras. */

-#define        TS_CAN_BYPASS_L_RINT 0x010000   /* Device in "raw" mode. */
-#define        TS_CONNECTED    0x020000        /* Connection open. */
-#define        TS_SNOOP        0x040000        /* Device is being snooped on. */
-#define        TS_SO_OCOMPLETE 0x080000        /* Wake up when output completes. */
-#define        TS_ZOMBIE       0x100000        /* Connection lost. */
+#define TS_CAN_BYPASS_L_RINT 0x010000   /* Device in "raw" mode. */
+#define TS_CONNECTED    0x020000        /* Connection open. */
+#define TS_SNOOP        0x040000        /* Device is being snooped on. */
+#define TS_SO_OCOMPLETE 0x080000        /* Wake up when output completes. */
+#define TS_ZOMBIE       0x100000        /* Connection lost. */

 
 /* Hardware flow-control-invoked bits. */
 
 /* Hardware flow-control-invoked bits. */

-#define        TS_CAR_OFLOW    0x200000        /* For MDMBUF (XXX handle in driver). */
+#define TS_CAR_OFLOW    0x200000        /* For MDMBUF (XXX handle in driver). */

 #ifdef notyet
 #ifdef notyet

-#define        TS_CTS_OFLOW    0x400000        /* For CCTS_OFLOW. */
-#define        TS_DSR_OFLOW    0x800000        /* For CDSR_OFLOW. */
+#define TS_CTS_OFLOW    0x400000        /* For CCTS_OFLOW. */
+#define TS_DSR_OFLOW    0x800000        /* For CDSR_OFLOW. */

 #endif
 
 #endif
 

-#define        TS_IOCTL_NOT_OK 0x1000000       /* Workaround <rdar://....> */
+#define TS_IOCTL_NOT_OK 0x1000000       /* Workaround <rdar://....> */
+#define TS_REVOKE       0x2000000       /* Terminal getting revoked */

 
 
 /* Character type information. */
 
 
 /* Character type information. */

-#define        ORDINARY        0
-#define        CONTROL         1
-#define        BACKSPACE       2
-#define        NEWLINE         3
-#define        TAB             4
-#define        VTAB            5
-#define        RETURN          6
+#define ORDINARY        0
+#define CONTROL         1
+#define BACKSPACE       2
+#define NEWLINE         3
+#define TAB             4
+#define VTAB            5
+#define RETURN          6

 
 struct speedtab {
 
 struct speedtab {

-       int sp_speed;                   /* Speed. */
-       int sp_code;                    /* Code. */
+       int sp_speed;
+       int sp_code;

 };
 
 /* Modem control commands (driver). */
 };
 
 /* Modem control commands (driver). */

-#define        DMSET           0
-#define        DMBIS           1
-#define        DMBIC           2
-#define        DMGET           3
+#define DMSET           0
+#define DMBIS           1
+#define DMBIC           2
+#define DMGET           3

 
 /* Flags on a character passed to ttyinput. */
 
 /* Flags on a character passed to ttyinput. */

-#define        TTY_CHARMASK    0x000000ff      /* Character mask */
-#define        TTY_QUOTE       0x00000100      /* Character quoted */
-#define        TTY_ERRORMASK   0xff000000      /* Error mask */
-#define        TTY_FE          0x01000000      /* Framing error */
-#define        TTY_PE          0x02000000      /* Parity error */
-#define        TTY_OE          0x04000000      /* Overrun error */
-#define        TTY_BI          0x08000000      /* Break condition */
+#define TTY_CHARMASK    0x000000ff      /* Character mask */
+#define TTY_QUOTE       0x00000100      /* Character quoted */
+#define TTY_ERRORMASK   0xff000000      /* Error mask */
+#define TTY_FE          0x01000000      /* Framing error */
+#define TTY_PE          0x02000000      /* Parity error */
+#define TTY_OE          0x04000000      /* Overrun error */
+#define TTY_BI          0x08000000      /* Break condition */

 
 #ifdef KERNEL
 
 /* Unique sleep addresses. */
 
 #ifdef KERNEL
 
 /* Unique sleep addresses. */

-#define        TSA_CARR_ON(tp)         ((void *)&(tp)->t_rawq)
-#define        TSA_HUP_OR_INPUT(tp)    ((void *)&(tp)->t_rawq.c_cf)
-#define        TSA_OCOMPLETE(tp)       ((void *)&(tp)->t_outq.c_cl)
-#define        TSA_OLOWAT(tp)          ((void *)&(tp)->t_outq)
-#define        TSA_PTC_READ(tp)        ((void *)&(tp)->t_outq.c_cf)
-#define        TSA_PTC_WRITE(tp)       ((void *)&(tp)->t_rawq.c_cl)
-#define        TSA_PTS_READ(tp)        ((void *)&(tp)->t_canq)
+#define TSA_CARR_ON(tp)         ((void *)&(tp)->t_rawq)
+#define TSA_HUP_OR_INPUT(tp)    ((void *)&(tp)->t_rawq.c_cf)
+#define TSA_OCOMPLETE(tp)       ((void *)&(tp)->t_outq.c_cl)
+#define TSA_OLOWAT(tp)          ((void *)&(tp)->t_outq)
+#define TSA_PTC_READ(tp)        ((void *)&(tp)->t_outq.c_cf)
+#define TSA_PTC_WRITE(tp)       ((void *)&(tp)->t_rawq.c_cl)
+#define TSA_PTS_READ(tp)        ((void *)&(tp)->t_canq)

 
 
 __BEGIN_DECLS
 
 
 
 __BEGIN_DECLS
 

-int     b_to_q(const u_char *cp, int cc, struct clist *q);
-void    catq(struct clist *from, struct clist *to);
-void    clist_init(void);
-int     getc(struct clist *q);
-void    ndflush(struct clist *q, int cc);
-int     ndqb(struct clist *q, int flag);
-u_char *firstc          (struct clist *clp, int *c);
-u_char *nextc(struct clist *q, u_char *cp, int *c);
-int     putc(int c, struct clist *q);
-int     q_to_b(struct clist *q, u_char *cp, int cc);
-int     unputc(struct clist *q);
-int     clalloc(struct clist *clp, int size, int quot);
-void    clfree(struct clist *clp);
-void   cinit(void);
-void   clrbits(u_char *cp, int off, int len);
+int      b_to_q(const u_char *cp, int cc, struct clist *q);
+void     catq(struct clist *from, struct clist *to);
+void     clist_init(void);
+int      getc(struct clist *q);
+void     ndflush(struct clist *q, int cc);
+int      ndqb(struct clist *q, int flag);
+u_char  *firstc(struct clist *clp, int *c);
+u_char  *nextc(struct clist *q, u_char *cp, int *c);
+int      putc(int c, struct clist *q);
+int      q_to_b(struct clist *q, u_char *cp, int cc);
+int      unputc(struct clist *q);
+int      clalloc(struct clist *clp, int size, int quot);
+void     clfree(struct clist *clp);
+void    cinit(void);
+void    clrbits(u_char *cp, int off, int len);

 
 #ifdef KERNEL_PRIVATE
 
 #ifdef KERNEL_PRIVATE

-void   tty_init(void);
+void    tty_init(void);

 /*
  * The locked version of this function is used from routines which hold
  * the tty_lock(), such as ttcompat() in tty_compat.c
  */
 /*
  * The locked version of this function is used from routines which hold
  * the tty_lock(), such as ttcompat() in tty_compat.c
  */

-int    ttioctl_locked(struct tty *tp, u_long com, caddr_t data, int flag,
-           struct proc *p);
+int     ttioctl_locked(struct tty *tp, u_long com, caddr_t data, int flag,
+    struct proc *p);

 
 

-int    ttcompat(struct tty *tp, u_long com, caddr_t data, int flag,
-           struct proc *p);
+int     ttcompat(struct tty *tp, u_long com, caddr_t data, int flag,
+    struct proc *p);

 #endif /* KERNEL_PRIVATE */
 
 void tty_lock(struct tty *tp);
 void tty_unlock(struct tty *tp);
 
 #endif /* KERNEL_PRIVATE */
 
 void tty_lock(struct tty *tp);
 void tty_unlock(struct tty *tp);
 

-void    termioschars(struct termios *t);
-int     tputchar(int c, struct tty *tp);
-int     ttioctl(struct tty *tp, u_long com, caddr_t data, int flag,
-           struct proc *p);
-int     ttread(struct tty *tp, struct uio *uio, int flag);
-int     ttyselect(struct tty *tp, int rw, void * wql, struct proc *p);
-int     ttselect(dev_t dev, int rw, void * wql, struct proc *p);
-void    ttsetwater(struct tty *tp);
-int     ttspeedtab(int speed, struct speedtab *table);
-int     ttstart(struct tty *tp);
-void    ttwakeup(struct tty *tp);
-int     ttwrite(struct tty *tp, struct uio *uio, int flag);
-void    ttwwakeup(struct tty *tp);
-void    ttyblock(struct tty *tp);
-int     ttycheckoutq(struct tty *tp, int wait);
-int     ttyclose(struct tty *tp);      /* LEGACY: avoid using */
-void    ttyflush(struct tty *tp, int rw);
-void    ttyinfo(struct tty *tp);
-void    ttyinfo_locked(struct tty *tp);
-int     ttyinput(int c, struct tty *tp);
-int     ttylclose(struct tty *tp, int flag);
-int     ttymodem(struct tty *tp, int flag);
-int     ttyopen(dev_t device, struct tty *tp);
-int     ttysleep(struct tty *tp,
-           void *chan, int pri, const char *wmesg, int timeout);
-int     ttywait(struct tty *tp);
+void     termioschars(struct termios *t);
+int      tputchar(int c, struct tty *tp);
+int      ttioctl(struct tty *tp, u_long com, caddr_t data, int flag,
+    struct proc *p);
+int      ttread(struct tty *tp, struct uio *uio, int flag);
+int      ttyselect(struct tty *tp, int rw, void * wql, struct proc *p);
+int      ttselect(dev_t dev, int rw, void * wql, struct proc *p);
+void     ttsetwater(struct tty *tp);
+int      ttspeedtab(int speed, struct speedtab *table);
+int      ttstart(struct tty *tp);
+void     ttwakeup(struct tty *tp);
+int      ttwrite(struct tty *tp, struct uio *uio, int flag);
+void     ttwwakeup(struct tty *tp);
+void     ttyblock(struct tty *tp);
+int      ttycheckoutq(struct tty *tp, int wait);
+int      ttyclose(struct tty *tp);      /* LEGACY: avoid using */
+void     ttyflush(struct tty *tp, int rw);
+void     ttyinfo(struct tty *tp);
+void     ttyinfo_locked(struct tty *tp);
+int      ttyinput(int c, struct tty *tp);
+int      ttylclose(struct tty *tp, int flag);
+int      ttymodem(struct tty *tp, int flag);
+int      ttyopen(dev_t device, struct tty *tp);
+int      ttysleep(struct tty *tp,
+    void *chan, int pri, const char *wmesg, int timeout);
+int      ttywait(struct tty *tp);

 struct tty *ttymalloc(void);
 void     ttyfree(struct tty *);
 
 struct tty *ttymalloc(void);
 void     ttyfree(struct tty *);
 

+#ifdef XNU_KERNEL_PRIVATE
+extern void ttyhold(struct tty *tp);
+
+#define TTY_LOCK_OWNED(tp) LCK_MTX_ASSERT(&tp->t_lock, LCK_MTX_ASSERT_OWNED)
+#define TTY_LOCK_NOTOWNED(tp) LCK_MTX_ASSERT(&tp->t_lock, LCK_MTX_ASSERT_NOTOWNED)
+
+#define PTS_MAJOR 4
+#define PTC_MAJOR 5
+#endif /* defined(XNU_KERNEL_PRIVATE) */
+

 __END_DECLS
 
 #endif /* KERNEL */
 
 __END_DECLS
 
 #endif /* KERNEL */
 

-

 #endif /* !_SYS_TTY_H_ */
 #endif /* !_SYS_TTY_H_ */