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kbdvar.h revision 1.12 
      1 /*	$NetBSD: kbdvar.h,v 1.12 2003/08/07 16:31:26 agc 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. Neither the name of the University nor the names of its contributors
     25  *    may be used to endorse or promote products derived from this software
     26  *    without specific prior written permission.
     27  *
     28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     38  * SUCH DAMAGE.
     39  *
     40  *	@(#)kbd.c	8.2 (Berkeley) 10/30/93
     41  */
     42 
     43 #include "wskbd.h"	/* for NWSKBD */
     44 #include <dev/wscons/wsconsio.h>
     45 #include <dev/wscons/wskbdvar.h>
     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 #if NWSKBD > 0
     58 	struct device * k_wskbd;/* handle for wskbd, if it is attached */
     59 	int k_wsenabled;	/* set if we are using wskbd */
     60 	struct callout k_wsbell;/* to shut the bell off */
     61 #endif
     62 
     63 	/* ACSII translation state */
     64 	struct kbd_state k_state;
     65 
     66 	/* console hooks */
     67 	int k_isconsole;
     68 	struct cons_channel *k_cc;
     69 
     70 	/* autorepeat for console input */
     71 	int k_repeat_start; 	/* initial delay */
     72 	int k_repeat_step;  	/* inter-char delay */
     73 	int k_repeatsym;	/* repeating symbol */
     74 	int k_repeating;	/* callout is active (use callout_active?) */
     75 	struct callout k_repeat_ch;
     76 };
     77 
     78 
     79 /*
     80  * Downcalls to the middle layer.
     81  */
     82 struct kbd_ops {
     83 	int (*open)(struct kbd_softc *);
     84 	int (*close)(struct kbd_softc *);
     85 	int (*docmd)(struct kbd_softc *, int, int);
     86 	int (*setleds)(struct kbd_softc *, int, int);
     87 };
     88 
     89 
     90 /*
     91  * kbd console input channel interface.
     92  * XXX - does not belong in this header; but for now, kbd is the only user...
     93  */
     94 struct cons_channel {
     95 	/* XXX: only used by PROM console, probably belongs to kd.c */
     96 	struct callout cc_callout;
     97 
     98 	/*
     99 	 * Callbacks provided by underlying device (e.g. keyboard driver).
    100 	 * Console driver will call these before console is opened/closed.
    101 	 */
    102 	void *cc_dev;		/* underlying device private data */
    103 	int (*cc_iopen)(struct cons_channel *);  /* open underlying device */
    104 	int (*cc_iclose)(struct cons_channel *); /* close underlying device */
    105 
    106 	/*
    107 	 * Callback provided by the console driver.  Keyboard driver
    108 	 * calls it to pass input character up as console input.
    109 	 */
    110 	void (*cc_upstream)(int);
    111 };
    112 
    113 
    114 /*
    115  * Allocate and link up console channel.
    116  * Should be called by the lower layer during attachment.
    117  */
    118 extern struct cons_channel *kbd_cc_alloc(struct kbd_softc *);
    119 
    120 /*
    121  * Feed sun make/break code as keyboard input to the upper layer.
    122  * Should be called by the middle layer.
    123  */
    124 extern void kbd_input(struct kbd_softc *, int);
    125 
    126 /*
    127  * Special hook to attach the keyboard driver to the console.
    128  * XXX: this should be hidden in kbd_cc_alloc().
    129  */
    130 struct consdev;
    131 extern void cons_attach_input(struct cons_channel *, struct consdev *);
    132