1 /* $NetBSD: pckbd_encode.c,v 1.4 2005/12/11 12:21:22 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 TAKEMRUA, Shin All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by the PocketBSD project 17 * and its contributors. 18 * 4. Neither the name of the project 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 */ 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: pckbd_encode.c,v 1.4 2005/12/11 12:21:22 christos Exp $"); 38 39 #include "opt_wsdisplay_compat.h" 40 41 #ifdef WSDISPLAY_COMPAT_RAWKBD 42 #include <sys/param.h> 43 #include <dev/wscons/wsconsio.h> 44 #include <dev/pckbport/pckbdreg.h> 45 #include <dev/hpc/pckbd_encode.h> 46 47 /* 48 * pckbd_encode() is inverse function of pckbd_decode() in dev/pckbc/pckbd.c. 49 */ 50 int 51 pckbd_encode(u_int type, int datain, u_char *dataout) 52 { 53 int res; 54 u_char updown; 55 56 res = 0; 57 updown = (type == WSCONS_EVENT_KEY_UP) ? 0x80 : 0; 58 59 /* 0x7f means BREAK key */ 60 if (datain == 0x7f) { 61 dataout[res++] = KBR_EXTENDED1; 62 dataout[res++] = (0x1d | updown); 63 datain = 0x45; 64 } 65 66 /* extended keys */ 67 if (datain & 0x80) { 68 dataout[res++] = KBR_EXTENDED0; 69 datain &= 0x7f; 70 } 71 72 dataout[res++] = (datain | updown); 73 74 return (res); 75 } 76 #endif /* WSDISPLAY_COMPAT_RAWKBD */ 77