Home | History | Annotate | Line # | Download | only in sun
kbdvar.h revision 1.9 
      1 /*	$NetBSD: kbdvar.h,v 1.9 2002/10/03 16:13:26 uwe Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1992, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This software was developed by the Computer Systems Engineering group
      8  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
      9  * contributed to Berkeley.
     10  *
     11  * All advertising materials mentioning features or use of this software
     12  * must display the following acknowledgement:
     13  *	This product includes software developed by the University of
     14  *	California, Lawrence Berkeley Laboratory.
     15  *
     16  * Redistribution and use in source and binary forms, with or without
     17  * modification, are permitted provided that the following conditions
     18  * are met:
     19  * 1. Redistributions of source code must retain the above copyright
     20  *    notice, this list of conditions and the following disclaimer.
     21  * 2. Redistributions in binary form must reproduce the above copyright
     22  *    notice, this list of conditions and the following disclaimer in the
     23  *    documentation and/or other materials provided with the distribution.
     24  * 3. All advertising materials mentioning features or use of this software
     25  *    must display the following acknowledgement:
     26  *	This product includes software developed by the University of
     27  *	California, Berkeley and its contributors.
     28  * 4. Neither the name of the University nor the names of its contributors
     29  *    may be used to endorse or promote products derived from this software
     30  *    without specific prior written permission.
     31  *
     32  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     33  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     34  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     35  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     36  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     37  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     38  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     39  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     40  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     41  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     42  * SUCH DAMAGE.
     43  *
     44  *	@(#)kbd.c	8.2 (Berkeley) 10/30/93
     45  */
     46 
     47 struct kbd_softc {
     48 	struct device k_dev;	/* required first: base device */
     49 
     50 	/* middle layer methods */
     51 	struct kbd_ops *k_ops;
     52 
     53 	/* state of the upper layer */
     54 	int k_evmode;		/* set if we should produce events */
     55 	struct evvar k_events;	/* event queue state */
     56 
     57 	/* ACSII translation state */
     58 	struct kbd_state k_state;
     59 
     60 	/* Console hooks */
     61 	int k_isconsole;
     62 	struct cons_channel *k_cc;
     63 };
     64 
     65 /*
     66  * Downcalls to the middle layer.
     67  * NB: iocsled has user context to care about,
     68  *     setleds can be called from interrupt handler.
     69  */
     70 struct kbd_ops {
     71 	int (*open)(struct kbd_softc *);
     72 	int (*close)(struct kbd_softc *);
     73 	int (*docmd)(struct kbd_softc *, int, int);	/* KIOCCMD */
     74 	int (*setleds)(struct kbd_softc *, int, int);	/* KIOCSLED */
     75 };
     76 
     77 
     78 /* Callbacks for middle layer to feed us keyboard input */
     79 extern int	kbd_input_keysym(struct kbd_softc *, int);	/* console */
     80 extern void	kbd_input_event(struct kbd_softc *, int);	/* events  */
     81 
     82 
     83 /*
     84  * kbd console input channel interface.
     85  * XXX - does not belong in this header; but for now, kbd is the only user..
     86  */
     87 struct cons_channel {
     88 	/* XXX: only used by PROM console, probably belongs to kd.c */
     89 	struct callout cc_callout;
     90 
     91 	/*
     92 	 * Callbacks provided by underlying device (e.g. keyboard driver).
     93 	 * Console driver will call these before console is opened/closed.
     94 	 */
     95 	void *cc_dev;		/* underlying device private data */
     96 	int (*cc_iopen)(struct cons_channel *);  /* open underlying device */
     97 	int (*cc_iclose)(struct cons_channel *); /* close underlying device */
     98 
     99 	/*
    100 	 * Callback provided by the console driver.  Underlying driver
    101 	 * calls it to pass input character up as console input.
    102 	 */
    103 	void (*cc_upstream)(int);
    104 };
    105 
    106 /* upper layer callbacks that lower layer passes to console driver */
    107 extern int kbd_cc_open(struct cons_channel *);
    108 extern int kbd_cc_close(struct cons_channel *);
    109 
    110 /* Special hook to attach the keyboard driver to the console */
    111 struct consdev;
    112 extern void cons_attach_input(struct cons_channel *, struct consdev *);
    113