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kbdvar.h revision 1.10 
      1 /*	$NetBSD: kbdvar.h,v 1.10 2002/10/21 15:36:35 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 	const 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 	/* autorepeat for console input */
     65 	int k_repeat_start; 	/* initial delay */
     66 	int k_repeat_step;  	/* inter-char delay */
     67 	int k_repeatsym;	/* repeating symbol */
     68 	int k_repeating;	/* callout is active (use callout_active?) */
     69 	struct callout k_repeat_ch;
     70 };
     71 
     72 
     73 /*
     74  * Downcalls to the middle layer.
     75  */
     76 struct kbd_ops {
     77 	int (*open)(struct kbd_softc *);
     78 	int (*close)(struct kbd_softc *);
     79 	int (*docmd)(struct kbd_softc *, int, int);
     80 	int (*setleds)(struct kbd_softc *, int, int);
     81 };
     82 
     83 
     84 /*
     85  * kbd console input channel interface.
     86  * XXX - does not belong in this header; but for now, kbd is the only user...
     87  */
     88 struct cons_channel {
     89 	/* XXX: only used by PROM console, probably belongs to kd.c */
     90 	struct callout cc_callout;
     91 
     92 	/*
     93 	 * Callbacks provided by underlying device (e.g. keyboard driver).
     94 	 * Console driver will call these before console is opened/closed.
     95 	 */
     96 	void *cc_dev;		/* underlying device private data */
     97 	int (*cc_iopen)(struct cons_channel *);  /* open underlying device */
     98 	int (*cc_iclose)(struct cons_channel *); /* close underlying device */
     99 
    100 	/*
    101 	 * Callback provided by the console driver.  Keyboard driver
    102 	 * calls it to pass input character up as console input.
    103 	 */
    104 	void (*cc_upstream)(int);
    105 };
    106 
    107 
    108 /*
    109  * Allocate and link up console channel.
    110  * Should be called by the lower layer during attachment.
    111  */
    112 extern struct cons_channel *kbd_cc_alloc(struct kbd_softc *);
    113 
    114 /*
    115  * Feed sun make/break code as keyboard input to the upper layer.
    116  * Should be called by the middle layer.
    117  */
    118 extern void kbd_input(struct kbd_softc *, int);
    119 
    120 /*
    121  * Special hook to attach the keyboard driver to the console.
    122  * XXX: this should be hidden in kbd_cc_alloc().
    123  */
    124 struct consdev;
    125 extern void cons_attach_input(struct cons_channel *, struct consdev *);
    126