The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/sys/cons.h

Version: -  FREEBSD  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-2  -  FREEBSD-11-1  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-4  -  FREEBSD-10-3  -  FREEBSD-10-2  -  FREEBSD-10-1  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-3  -  FREEBSD-9-2  -  FREEBSD-9-1  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-4  -  FREEBSD-8-3  -  FREEBSD-8-2  -  FREEBSD-8-1  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-4  -  FREEBSD-7-3  -  FREEBSD-7-2  -  FREEBSD-7-1  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-4  -  FREEBSD-6-3  -  FREEBSD-6-2  -  FREEBSD-6-1  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-5  -  FREEBSD-5-4  -  FREEBSD-5-3  -  FREEBSD-5-2  -  FREEBSD-5-1  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1 
SearchContext: -  none  -  3  -  10 

    1 /*-
    2  * Copyright (c) 1988 University of Utah.
    3  * Copyright (c) 1991 The Regents of the University of California.
    4  * All rights reserved.
    5  *
    6  * This code is derived from software contributed to Berkeley by
    7  * the Systems Programming Group of the University of Utah Computer
    8  * Science Department.
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  * 4. Neither the name of the University nor the names of its contributors
   19  *    may be used to endorse or promote products derived from this software
   20  *    without specific prior written permission.
   21  *
   22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   32  * SUCH DAMAGE.
   33  *
   34  *      from: @(#)cons.h        7.2 (Berkeley) 5/9/91
   35  * $FreeBSD: releng/8.1/sys/sys/cons.h 199583 2009-11-20 15:27:52Z jhb $
   36  */
   37 
   38 #ifndef _MACHINE_CONS_H_
   39 #define _MACHINE_CONS_H_
   40 
   41 struct consdev;
   42 struct tty;
   43 
   44 typedef void    cn_probe_t(struct consdev *);
   45 typedef void    cn_init_t(struct consdev *);
   46 typedef void    cn_term_t(struct consdev *);
   47 typedef int     cn_getc_t(struct consdev *);
   48 typedef int     cn_checkc_t(struct consdev *);
   49 typedef void    cn_putc_t(struct consdev *, int);
   50 
   51 struct consdev {
   52         cn_probe_t      *cn_probe;
   53                                 /* probe hardware and fill in consdev info */
   54         cn_init_t       *cn_init;
   55                                 /* turn on as console */
   56         cn_term_t       *cn_term;
   57                                 /* turn off as console */
   58         cn_getc_t       *cn_getc;
   59                                 /* kernel getchar interface */
   60         cn_checkc_t     *cn_checkc;
   61                                 /* kernel "return char if available" interface */
   62         cn_putc_t       *cn_putc;
   63                                 /* kernel putchar interface */
   64         short   cn_pri;         /* pecking order; the higher the better */
   65         void    *cn_arg;        /* drivers method argument */
   66         int     cn_flags;       /* capabilities of this console */
   67         char    cn_name[SPECNAMELEN + 1];       /* console (device) name */
   68 };
   69 
   70 /* values for cn_pri - reflect our policy for console selection */
   71 #define CN_DEAD         0       /* device doesn't exist */
   72 #define CN_LOW          1       /* device is a last restort only */
   73 #define CN_NORMAL       2       /* device exists but is nothing special */
   74 #define CN_INTERNAL     3       /* "internal" bit-mapped display */
   75 #define CN_REMOTE       4       /* serial interface with remote bit set */
   76 
   77 /* Values for cn_flags. */
   78 #define CN_FLAG_NODEBUG 0x00000001      /* Not supported with debugger. */
   79 #define CN_FLAG_NOAVAIL 0x00000002      /* Temporarily not available. */
   80 
   81 #ifdef _KERNEL
   82 
   83 extern  struct msgbuf consmsgbuf; /* Message buffer for constty. */
   84 extern  struct tty *constty;    /* Temporary virtual console. */
   85 
   86 #define CONS_DRIVER(name, probe, init, term, getc, checkc, putc, dbctl) \
   87         static struct consdev name##_consdev = {                        \
   88                 probe, init, term, getc, checkc, putc                   \
   89         };                                                              \
   90         DATA_SET(cons_set, name##_consdev)
   91 
   92 #define CONSOLE_DRIVER(name)                                            \
   93         static struct consdev name##_consdev = {                        \
   94                 .cn_probe = name##_cnprobe,                             \
   95                 .cn_init = name##_cninit,                               \
   96                 .cn_term = name##_cnterm,                               \
   97                 .cn_getc = name##_cngetc,                               \
   98                 .cn_putc = name##_cnputc,                               \
   99         };                                                              \
  100         DATA_SET(cons_set, name##_consdev)
  101 
  102 /* Other kernel entry points. */
  103 void    cninit(void);
  104 void    cninit_finish(void);
  105 int     cnadd(struct consdev *);
  106 void    cnavailable(struct consdev *, int);
  107 void    cnremove(struct consdev *);
  108 void    cnselect(struct consdev *);
  109 int     cncheckc(void);
  110 int     cngetc(void);
  111 void    cnputc(int);
  112 void    cnputs(char *);
  113 int     cnunavailable(void);
  114 void    constty_set(struct tty *tp);
  115 void    constty_clear(void);
  116 
  117 #endif /* _KERNEL */
  118 
  119 #endif /* !_MACHINE_CONS_H_ */

Cache object: 872fc038ec341d27eb60d7e8fd428dc0


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.