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kbdvar.h revision 1.19 
      1 /*	$NetBSD: kbdvar.h,v 1.19 2008/03/29 19:15:36 tsutsui 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 #if NWSKBD > 0
     48 #include "opt_wsdisplay_compat.h"
     49 #endif
     50 
     51 struct kbd_softc {
     52 	device_t k_dev;		/* required first: base device */
     53 
     54 	/* middle layer methods */
     55 	const struct kbd_ops *k_ops;
     56 
     57 	/* state of the upper layer */
     58 	int k_evmode;		/* set if we should produce events */
     59 	struct evvar k_events;	/* event queue state */
     60 
     61 #if NWSKBD > 0
     62 	struct device * k_wskbd;/* handle for wskbd, if it is attached */
     63 	int k_wsenabled;	/* set if we are using wskbd */
     64 #ifdef WSDISPLAY_COMPAT_RAWKBD
     65 	int k_wsraw;		/* send raw events to wscons */
     66 #endif
     67 	struct callout k_wsbell;/* to shut the bell off */
     68 #endif
     69 
     70 	/* ASCII translation state */
     71 	struct kbd_state k_state;
     72 
     73 	/* console hooks */
     74 	int k_isconsole;
     75 	struct cons_channel *k_cc;
     76 
     77 	/* autorepeat for console input */
     78 	int k_repeat_start; 	/* initial delay */
     79 	int k_repeat_step;  	/* inter-char delay */
     80 	int k_repeatsym;	/* repeating symbol */
     81 	int k_repeating;	/* callout is active (use callout_active?) */
     82 	struct callout k_repeat_ch;
     83 	int k_leds;
     84 };
     85 
     86 
     87 /*
     88  * Downcalls to the middle layer.
     89  */
     90 struct kbd_ops {
     91 	int (*open)(struct kbd_softc *);
     92 	int (*close)(struct kbd_softc *);
     93 	int (*docmd)(struct kbd_softc *, int, int);
     94 	int (*setleds)(struct kbd_softc *, int, int);
     95 };
     96 
     97 
     98 /*
     99  * kbd console input channel interface.
    100  * XXX - does not belong in this header; but for now, kbd is the only user...
    101  */
    102 struct cons_channel {
    103 	/*
    104 	 * Callbacks provided by underlying device (e.g. keyboard driver).
    105 	 * Console driver will call these before console is opened/closed.
    106 	 */
    107 	void *cc_private;	/* underlying device private data */
    108 	int (*cc_iopen)(struct cons_channel *);  /* open underlying device */
    109 	int (*cc_iclose)(struct cons_channel *); /* close underlying device */
    110 
    111 	/*
    112 	 * Callback provided by the console driver.  Keyboard driver
    113 	 * calls it to pass input character up as console input.
    114 	 */
    115 	void (*cc_upstream)(int);
    116 };
    117 
    118 
    119 /*
    120  * Allocate and link up console channel.
    121  * Should be called by the lower layer during attachment.
    122  */
    123 extern struct cons_channel *kbd_cc_alloc(struct kbd_softc *);
    124 
    125 /*
    126  * Feed sun make/break code as keyboard input to the upper layer.
    127  * Should be called by the middle layer.
    128  */
    129 extern void kbd_input(struct kbd_softc *, int);
    130 
    131 /*
    132  * Special hook to attach the keyboard driver to the console.
    133  * XXX: this should be hidden in kbd_cc_alloc().
    134  */
    135 struct consdev;
    136 extern void cons_attach_input(struct cons_channel *, struct consdev *);
    137