930 lines
22 KiB
C
930 lines
22 KiB
C
/* $NetBSD: dtop.c,v 1.7 1995/08/10 04:21:39 jonathan Exp $ */
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/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Ralph Campbell and Rick Macklem.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)dtop.c 8.2 (Berkeley) 11/30/93
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*/
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/*
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* Mach Operating System
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* Copyright (c) 1991,1990,1989 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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/*
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* Author: Alessandro Forin, Carnegie Mellon University
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*
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* Hardware-level operations for the Desktop serial line
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* bus (i2c aka ACCESS).
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*/
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/************************************************************
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Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts,
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and the Massachusetts Institute of Technology, Cambridge, Massachusetts.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the names of Digital or MIT not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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SOFTWARE.
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********************************************************/
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#include <dtop.h>
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#if NDTOP > 0
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/ioctl.h>
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#include <sys/tty.h>
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#include <sys/proc.h>
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#include <sys/map.h>
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#include <sys/buf.h>
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#include <sys/conf.h>
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#include <sys/file.h>
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#include <sys/uio.h>
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#include <sys/kernel.h>
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#include <sys/syslog.h>
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#include <sys/device.h>
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#include <machine/autoconf.h>
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#include <machine/pmioctl.h>
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#include <machine/machConst.h>
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#include <machine/dc7085cons.h>
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#include <pmax/pmax/pmaxtype.h>
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#include <pmax/pmax/maxine.h>
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#include <pmax/pmax/asic.h>
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#include <pmax/dev/device.h>
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#include <pmax/dev/dtopreg.h>
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#include <pmax/dev/fbreg.h>
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extern int pmax_boardtype;
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void dtop_keyboard_repeat __P((void *));
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int dtop_null_device_handler __P((dtop_device_t, dtop_message_t, int, int));
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int dtop_locator_handler __P((dtop_device_t, dtop_message_t, int, int));
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int dtop_keyboard_handler __P((dtop_device_t, dtop_message_t, int, int));
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int dtopparam __P((struct tty *, struct termios *));
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int dtopstop __P((struct tty *, int));
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void dtopstart __P((struct tty *));
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void dtopKBDPutc __P((dev_t, int));
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struct tty *dtop_tty[NDTOP];
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void (*dtopDivertXInput)(); /* X windows keyboard input routine */
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void (*dtopMouseEvent)(); /* X windows mouse motion event routine */
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void (*dtopMouseButtons)(); /* X windows mouse buttons event routine */
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#define DTOP_MAX_POLL 0x7fff /* about half a sec */
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typedef volatile unsigned int *data_reg_t; /* uC */
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#define DTOP_GET_BYTE(data) (((*(data)) >> 8) & 0xff)
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#define DTOP_PUT_BYTE(data,c) { *(data) = (c) << 8; }
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typedef volatile unsigned int *poll_reg_t; /* SIR */
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#define DTOP_RX_AVAIL(poll) (*(poll) & 1)
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#define DTOP_TX_AVAIL(poll) (*(poll) & 2)
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#define GET_SHORT(b0,b1) (((b0)<<8)|(b1))
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/*
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* Driver status
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*/
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struct dtop_softc {
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data_reg_t data;
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poll_reg_t poll;
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char polling_mode;
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char probed_once;
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short bad_pkts;
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struct dtop_ds {
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int (*handler)();
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dtop_device status;
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} device[(DTOP_ADDR_DEFAULT - DTOP_ADDR_FIRST) >> 1];
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# define DTOP_DEVICE_NO(address) (((address)-DTOP_ADDR_FIRST)>>1)
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} dtop_softc[NDTOP];
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typedef struct dtop_softc *dtop_softc_t;
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struct tty *dtop_tty[NDTOP];
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/*
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* lk201 keyboard divisions and up/down mode key bitmap.
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*/
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#define NUMDIVS 14
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static u_char divbeg[NUMDIVS] = {0xbf, 0x91, 0xbc, 0xbd, 0xb0, 0xad, 0xa6,
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0xa9, 0x88, 0x56, 0x63, 0x6f, 0x7b, 0x7e};
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static u_char divend[NUMDIVS] = {0xff, 0xa5, 0xbc, 0xbe, 0xb2, 0xaf, 0xa8,
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0xac, 0x90, 0x62, 0x6e, 0x7a, 0x7d, 0x87};
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/*
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* Initial defaults, groups 5 and 6 are up/down
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*/
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static u_long keymodes[8] = {0, 0, 0, 0, 0, 0x0003e000, 0, 0};
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/*
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* Autoconfiguration data for config.new.
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* Use the statically-allocated softc until old autoconfig code and
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* config.old are completely gone.
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*
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*/
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int dtopmatch __P((struct device * parent, void *cfdata, void *aux));
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void dtopattach __P((struct device *parent, struct device *self, void *aux));
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void dtopintr __P((int unit));
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int dtop_doprobe __P((void *addr, int unit, int pri));
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extern struct cfdriver dtopcd;
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struct cfdriver dtopcd = {
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NULL, "dtop", dtopmatch, dtopattach, DV_DULL, sizeof(struct device), 0
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};
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/*
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* match driver based on name
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*/
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int
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dtopmatch(parent, match, aux)
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struct device *parent;
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void *match;
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void *aux;
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{
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struct cfdata *cf = match;
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struct confargs *ca = aux;
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static int nunits = 0;
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if (!BUS_MATCHNAME(ca, "dtop"))
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return (0);
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/*
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* Use statically-allocated softc and attach code until
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* old config is completely gone. Don't over-run softc.
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*/
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if (nunits > NDTOP) {
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printf("dtop: too many units for old config\n");
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return (0);
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}
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nunits++;
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return (1);
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}
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void
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dtopattach(parent, self, aux)
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struct device *parent;
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struct device *self;
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void *aux;
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{
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register struct confargs *ca = aux;
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(void) dtop_doprobe((void*)MACH_PHYS_TO_UNCACHED(BUS_CVTADDR(ca)),
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self->dv_unit, ca->ca_slot);
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/* tie pseudo-slot to device */
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BUS_INTR_ESTABLISH(ca, dtopintr, self->dv_unit);
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printf("\n");
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}
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dtop_doprobe(addr, unit, priority)
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void *addr;
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int unit, priority;
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{
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register struct tty *tp;
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register int cntr;
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int i, s;
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dtop_softc_t dtop;
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if (unit >= NDTOP)
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return (0);
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if (badaddr(addr, 2))
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return (0);
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dtop = &dtop_softc[unit];
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dtop->poll = (poll_reg_t)MACH_PHYS_TO_UNCACHED(XINE_REG_INTR);
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dtop->data = (data_reg_t)addr;
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for (i = 0; i < DTOP_MAX_DEVICES; i++)
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dtop->device[i].handler = dtop_null_device_handler;
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/* a lot more needed here, fornow: */
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dtop->device[DTOP_DEVICE_NO(0x6a)].handler = dtop_locator_handler;
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dtop->device[DTOP_DEVICE_NO(0x6c)].handler = dtop_keyboard_handler;
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dtop->device[DTOP_DEVICE_NO(0x6c)].status.keyboard.k_ar_state =
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K_AR_IDLE;
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dtop->probed_once = 1;
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printf("dtop%d at nexus0 csr 0x%x priority %d\n",
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unit, addr, priority);
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return (1);
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}
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dtopopen(dev, flag, mode, p)
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dev_t dev;
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int flag, mode;
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struct proc *p;
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{
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register struct tty *tp;
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register int unit;
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int s, error = 0;
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unit = minor(dev);
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if (unit >= NDTOP)
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return (ENXIO);
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tp = dtop_tty[unit];
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if (tp == NULL)
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tp = dtop_tty[unit] = ttymalloc();
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tp->t_oproc = dtopstart;
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tp->t_param = dtopparam;
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tp->t_dev = dev;
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if ((tp->t_state & TS_ISOPEN) == 0) {
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tp->t_state |= TS_WOPEN;
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ttychars(tp);
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if (tp->t_ispeed == 0) {
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tp->t_iflag = TTYDEF_IFLAG;
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tp->t_oflag = TTYDEF_OFLAG;
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tp->t_cflag = TTYDEF_CFLAG;
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tp->t_lflag = TTYDEF_LFLAG;
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tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
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}
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(void) dtopparam(tp, &tp->t_termios);
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ttsetwater(tp);
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} else if ((tp->t_state & TS_XCLUDE) && curproc->p_ucred->cr_uid != 0)
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return (EBUSY);
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s = spltty();
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while (!(flag & O_NONBLOCK) && !(tp->t_cflag & CLOCAL) &&
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!(tp->t_state & TS_CARR_ON)) {
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tp->t_state |= TS_WOPEN;
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if (error = ttysleep(tp, (caddr_t)&tp->t_rawq, TTIPRI | PCATCH,
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ttopen, 0))
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break;
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}
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splx(s);
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if (error)
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return (error);
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error = (*linesw[tp->t_line].l_open)(dev, tp);
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return (error);
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}
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/*ARGSUSED*/
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dtopclose(dev, flag, mode, p)
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dev_t dev;
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int flag, mode;
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struct proc *p;
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{
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register struct tty *tp;
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register int unit;
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unit = minor(dev);
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tp = dtop_tty[unit];
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(*linesw[tp->t_line].l_close)(tp, flag);
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return (ttyclose(tp));
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}
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dtopread(dev, uio, flag)
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dev_t dev;
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struct uio *uio;
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{
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register struct tty *tp;
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tp = dtop_tty[minor(dev)];
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return ((*linesw[tp->t_line].l_read)(tp, uio, flag));
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}
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dtopwrite(dev, uio, flag)
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dev_t dev;
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struct uio *uio;
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{
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register struct tty *tp;
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tp = dtop_tty[minor(dev)];
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return ((*linesw[tp->t_line].l_write)(tp, uio, flag));
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}
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struct tty *
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dtoptty(dev)
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dev_t dev;
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{
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struct tty *tp = dtop_tty[minor(dev)];
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return (tp);
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}
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/*ARGSUSED*/
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dtopioctl(dev, cmd, data, flag, p)
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dev_t dev;
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int cmd;
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caddr_t data;
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int flag;
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struct proc *p;
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{
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register struct tty *tp;
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register int unit = minor(dev);
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int error;
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tp = dtop_tty[unit];
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error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, p);
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if (error >= 0)
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return (error);
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error = ttioctl(tp, cmd, data, flag, p);
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if (error >= 0)
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return (error);
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switch (cmd) {
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case TIOCSBRK:
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ttyoutput(0, tp);
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break;
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case TIOCCBRK:
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ttyoutput(0, tp);
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break;
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case TIOCMGET:
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*(int *)data = DML_DTR | DML_DSR | DML_CAR;
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break;
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default:
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return (ENOTTY);
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}
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return (0);
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}
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/*
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* Interrupt routine
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*/
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void
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dtopintr(unit)
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int unit;
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{
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dtop_message msg;
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int devno;
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dtop_softc_t dtop;
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dtop = &dtop_softc[unit];
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if (dtop_get_packet(dtop, &msg) < 0) {
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#ifdef DIAGNOSTIC
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printf("dtop: overrun (or stray)\n");
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#endif
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/*
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* Ugh! The most common occurrence of a data overrun is upon a
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* key press and the result is a software generated "stuck key".
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* All I can think to do is fake an "all keys up" whenever a
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* data overrun occurs.
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*/
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msg.src_address = 0x6c;
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msg.code.val.len = 1;
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msg.body[0] = DTOP_KBD_EMPTY;
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}
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/*
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* If not probed yet, just throw the data away.
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*/
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if (!dtop->probed_once)
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return;
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devno = DTOP_DEVICE_NO(msg.src_address);
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if (devno < 0 || devno > 15)
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return;
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(void) (*dtop->device[devno].handler)
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(&dtop->device[devno].status, &msg,
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DTOP_EVENT_RECEIVE_PACKET, 0);
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}
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void
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dtopstart(tp)
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register struct tty *tp;
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{
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register int cc;
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int s;
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s = spltty();
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if (tp->t_state & (TS_TIMEOUT|TS_BUSY|TS_TTSTOP))
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goto out;
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if (tp->t_outq.c_cc <= tp->t_lowat) {
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if (tp->t_state & TS_ASLEEP) {
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tp->t_state &= ~TS_ASLEEP;
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wakeup((caddr_t)&tp->t_outq);
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}
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selwakeup(&tp->t_wsel);
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}
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if (tp->t_outq.c_cc == 0)
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goto out;
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/* handle console specially */
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if (tp == dtop_tty[0]) {
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while (tp->t_outq.c_cc > 0) {
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cc = getc(&tp->t_outq) & 0x7f;
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cnputc(cc);
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}
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/*
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* After we flush the output queue we may need to wake
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* up the process that made the output.
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*/
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if (tp->t_outq.c_cc <= tp->t_lowat) {
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if (tp->t_state & TS_ASLEEP) {
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tp->t_state &= ~TS_ASLEEP;
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wakeup((caddr_t)&tp->t_outq);
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}
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selwakeup(&tp->t_wsel);
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}
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}
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out:
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splx(s);
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}
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void
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dtopKBDPutc(dev, c)
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dev_t dev;
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int c;
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{
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register int i;
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static int param = 0, cmd, mod, typ;
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static u_char parms[2];
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/*
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* Emulate the lk201 command codes.
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*/
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if (param == 0) {
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typ = (c & 0x1);
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|
cmd = ((c >> 3) & 0xf);
|
|
mod = ((c >> 1) & 0x3);
|
|
} else
|
|
parms[param - 1] = (c & 0x7f);
|
|
if (c & 0x80) {
|
|
if (typ) {
|
|
/*
|
|
* A peripheral command code. Someday this driver
|
|
* should know how to send commands to the lk501,
|
|
* but until then this is all essentially a no-op.
|
|
*/
|
|
;
|
|
} else {
|
|
/*
|
|
* Set modes. These have to be emulated in software.
|
|
*/
|
|
if (cmd > 0 && cmd < 15) {
|
|
cmd--;
|
|
if (mod & 0x2)
|
|
for (i = divbeg[cmd]; i <= divend[cmd]; i++)
|
|
keymodes[i >> 5] |=
|
|
(1 << (i & 0x1f));
|
|
else
|
|
for (i = divbeg[cmd]; i <= divend[cmd]; i++)
|
|
keymodes[i >> 5] &=
|
|
~(1 << (i & 0x1f));
|
|
}
|
|
}
|
|
param = 0;
|
|
} else if (++param > 2)
|
|
param = 2;
|
|
}
|
|
|
|
/*
|
|
* Take a packet off dtop interface
|
|
* A packet MUST be there, this is not checked for.
|
|
*/
|
|
#define DTOP_ESC_CHAR 0xf8
|
|
dtop_escape(c)
|
|
{
|
|
/* I donno much about this stuff.. */
|
|
switch (c) {
|
|
case 0xe8: return (0xf8);
|
|
case 0xe9: return (0xf9);
|
|
case 0xea: return (0xfa);
|
|
case 0xeb: return (0xfb);
|
|
default: /* printf("{esc %x}", c); */
|
|
return (c);
|
|
}
|
|
}
|
|
|
|
dtop_get_packet(dtop, pkt)
|
|
dtop_softc_t dtop;
|
|
dtop_message_t pkt;
|
|
{
|
|
register poll_reg_t poll;
|
|
register data_reg_t data;
|
|
register int max, i, len;
|
|
register unsigned char c;
|
|
|
|
poll = dtop->poll;
|
|
data = dtop->data;
|
|
|
|
/*
|
|
* The interface does not handle us the first byte,
|
|
* which is our address and cannot ever be anything
|
|
* else but 0x50. This is a good thing, it makes
|
|
* the average packet exactly one word long, too.
|
|
*/
|
|
for (max = 0; (max < DTOP_MAX_POLL) && !DTOP_RX_AVAIL(poll); max++)
|
|
DELAY(1);
|
|
if (max == DTOP_MAX_POLL)
|
|
goto bad;
|
|
pkt->src_address = DTOP_GET_BYTE(data);
|
|
|
|
for (max = 0; (max < DTOP_MAX_POLL) && !DTOP_RX_AVAIL(poll); max++)
|
|
DELAY(1);
|
|
if (max == DTOP_MAX_POLL)
|
|
goto bad;
|
|
pkt->code.bits = DTOP_GET_BYTE(data);
|
|
|
|
/*
|
|
* Now get data and checksum
|
|
*/
|
|
len = pkt->code.val.len + 1;
|
|
c = 0;
|
|
for (i = 0; i < len; i++) {
|
|
again:
|
|
for (max = 0; (max < DTOP_MAX_POLL) && !DTOP_RX_AVAIL(poll); max++)
|
|
DELAY(1);
|
|
if (max == DTOP_MAX_POLL)
|
|
goto bad;
|
|
if (c == DTOP_ESC_CHAR) {
|
|
c = dtop_escape(DTOP_GET_BYTE(data) & 0xff);
|
|
} else {
|
|
c = DTOP_GET_BYTE(data);
|
|
if (c == DTOP_ESC_CHAR)
|
|
goto again;
|
|
}
|
|
pkt->body[i] = c;
|
|
}
|
|
return (len);
|
|
bad:
|
|
dtop->bad_pkts++;
|
|
return (-1);
|
|
}
|
|
|
|
/*
|
|
* Get a keyboard char for the console
|
|
*/
|
|
dtopKBDGetc()
|
|
{
|
|
register int c;
|
|
dtop_softc_t dtop;
|
|
|
|
dtop = &dtop_softc[0];
|
|
again:
|
|
c = -1;
|
|
|
|
/*
|
|
* Now check keyboard
|
|
*/
|
|
if (DTOP_RX_AVAIL(dtop->poll)) {
|
|
|
|
dtop_message msg;
|
|
struct dtop_ds *ds;
|
|
|
|
if (dtop_get_packet(dtop, &msg) >= 0) {
|
|
|
|
ds = &dtop->device[DTOP_DEVICE_NO(msg.src_address)];
|
|
if (ds->handler == dtop_keyboard_handler) {
|
|
|
|
c = dtop_keyboard_handler(
|
|
&ds->status, &msg,
|
|
DTOP_EVENT_RECEIVE_PACKET, -1);
|
|
|
|
if (c > 0) return c;
|
|
|
|
c = -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (c == -1) {
|
|
DELAY(100);
|
|
goto again;
|
|
}
|
|
|
|
return c;
|
|
}
|
|
|
|
int
|
|
dtopparam(tp, t)
|
|
struct tty *tp;
|
|
struct termios *t;
|
|
{
|
|
if (tp->t_ispeed == 0)
|
|
ttymodem(tp, 0);
|
|
else
|
|
/* called too early to invoke ttymodem, sigh */
|
|
tp->t_state |= TS_CARR_ON;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Stop output on a line.
|
|
*/
|
|
/*ARGSUSED*/
|
|
dtopstop(tp, flag)
|
|
register struct tty *tp;
|
|
int flag;
|
|
{
|
|
int s;
|
|
|
|
s = spltty();
|
|
if (tp->t_state & TS_BUSY) {
|
|
if (!(tp->t_state & TS_TTSTOP))
|
|
tp->t_state |= TS_FLUSH;
|
|
}
|
|
splx(s);
|
|
}
|
|
|
|
/*
|
|
* Default handler function
|
|
*/
|
|
int
|
|
dtop_null_device_handler(dev, msg, event, outc)
|
|
dtop_device_t dev;
|
|
dtop_message_t msg;
|
|
int event;
|
|
int outc;
|
|
{
|
|
/* See if the message was to the default address (powerup) */
|
|
|
|
/* Uhmm, donno how to handle this. Drop it */
|
|
if (event == DTOP_EVENT_RECEIVE_PACKET)
|
|
dev->unknown_report = *msg;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Handler for locator devices (mice)
|
|
*/
|
|
int
|
|
dtop_locator_handler(dev, msg, event, outc)
|
|
dtop_device_t dev;
|
|
dtop_message_t msg;
|
|
int event;
|
|
int outc;
|
|
{
|
|
register unsigned short buttons;
|
|
register short coord;
|
|
register int moved = 0;
|
|
static MouseReport currentRep;
|
|
register MouseReport *mrp = ¤tRep;
|
|
|
|
if (dtopMouseButtons) {
|
|
mrp->state = 0;
|
|
/*
|
|
* Do the position first
|
|
*/
|
|
coord = GET_SHORT(msg->body[2], msg->body[3]);
|
|
if (coord < 0) {
|
|
coord = -coord;
|
|
moved = 1;
|
|
} else if (coord > 0) {
|
|
mrp->state |= MOUSE_X_SIGN;
|
|
moved = 1;
|
|
}
|
|
mrp->dx = (coord & 0x1f);
|
|
coord = GET_SHORT(msg->body[4], msg->body[5]);
|
|
if (coord < 0) {
|
|
coord = -coord;
|
|
moved = 1;
|
|
} else if (coord > 0) {
|
|
mrp->state |= MOUSE_Y_SIGN;
|
|
moved = 1;
|
|
}
|
|
mrp->dy = (coord & 0x1f);
|
|
|
|
/*
|
|
* Time for the buttons now
|
|
* Shuffle button bits around to serial mouse order.
|
|
*/
|
|
buttons = GET_SHORT(msg->body[0], msg->body[1]);
|
|
mrp->state |= (((buttons >> 1) & 0x3) | ((buttons << 2) & 0x4));
|
|
if (moved)
|
|
(*dtopMouseEvent)(mrp);
|
|
(*dtopMouseButtons)(mrp);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Handler for keyboard devices
|
|
* Special case: outc set for recv packet means
|
|
* we are inside the kernel debugger
|
|
*/
|
|
int
|
|
dtop_keyboard_handler(dev, msg, event, outc)
|
|
dtop_device_t dev;
|
|
dtop_message_t msg;
|
|
int event;
|
|
int outc;
|
|
{
|
|
register u_char *ls, *le, *ns, *ne;
|
|
u_char save[11], retc;
|
|
int msg_len, c, s;
|
|
struct tty *tp = dtop_tty[0];
|
|
|
|
/*
|
|
* Fiddle about emulating an lk201 keyboard. The lk501
|
|
* designers carefully ensured that keyboard handlers could be
|
|
* stateless, then we turn around and use lots of state to
|
|
* emulate the stateful lk201, since the X11R5 X servers
|
|
* only know about the lk201... (oh well)
|
|
*/
|
|
/*
|
|
* Turn off any autorepeat timeout.
|
|
*/
|
|
s = splhigh();
|
|
if (dev->keyboard.k_ar_state != K_AR_IDLE) {
|
|
dev->keyboard.k_ar_state = K_AR_IDLE;
|
|
untimeout(dtop_keyboard_repeat, (void *)dev);
|
|
}
|
|
splx(s);
|
|
msg_len = msg->code.val.len;
|
|
|
|
/* Check for errors */
|
|
c = msg->body[0];
|
|
if ((c < DTOP_KBD_KEY_MIN) && (c != DTOP_KBD_EMPTY)) {
|
|
printf("Keyboard error: %x %x %x..\n", msg_len, c, msg->body[1]);
|
|
#ifdef notdef
|
|
if (c != DTOP_KBD_OUT_ERR) return -1;
|
|
#endif
|
|
/*
|
|
* Fake an "all ups" to avoid the stuck key syndrome.
|
|
*/
|
|
c = msg->body[0] = DTOP_KBD_EMPTY;
|
|
msg_len = 1;
|
|
}
|
|
|
|
dev->keyboard.last_msec = TO_MS(time);
|
|
/*
|
|
* To make things readable, do a first pass cancelling out
|
|
* all keys that are still pressed, and a second one generating
|
|
* events. While generating events, do the upstrokes first
|
|
* from oldest to youngest, then the downstrokes from oldest
|
|
* to youngest. This copes with lost packets and provides
|
|
* a reasonable model even if scans are too slow.
|
|
*/
|
|
|
|
/* make a copy of new state first */
|
|
if (msg_len == 1)
|
|
save[0] = msg->body[0];
|
|
else if (msg_len > 0)
|
|
bcopy(msg->body, save, msg_len);
|
|
|
|
/*
|
|
* Cancel out any keys in both the last and current message as
|
|
* they are unchanged.
|
|
*/
|
|
if (msg_len > 0 && dev->keyboard.last_codes_count > 0) {
|
|
ls = dev->keyboard.last_codes;
|
|
le = &dev->keyboard.last_codes[dev->keyboard.last_codes_count];
|
|
ne = &msg->body[msg_len];
|
|
for (; ls < le; ls++) {
|
|
for (ns = msg->body; ns < ne; ns++)
|
|
if (*ls == *ns) {
|
|
*ls = *ns = 0;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Now generate all upstrokes
|
|
*/
|
|
le = dev->keyboard.last_codes;
|
|
ls = &dev->keyboard.last_codes[dev->keyboard.last_codes_count - 1];
|
|
for ( ; ls >= le; ls--)
|
|
if (c = *ls) {
|
|
(void) kbdMapChar(c);
|
|
|
|
if (outc == 0 && dtopDivertXInput &&
|
|
(keymodes[(c >> 5) & 0x7] & (1 << (c & 0x1f))))
|
|
(*dtopDivertXInput)(c);
|
|
}
|
|
/*
|
|
* And finally the downstrokes
|
|
*/
|
|
ne = (char*)msg->body;
|
|
ns = (char*)&msg->body[msg_len - 1];
|
|
retc = 0;
|
|
for ( ; ns >= ne; ns--)
|
|
if (*ns) {
|
|
c = kbdMapChar(*ns);
|
|
if (outc == 0) {
|
|
if (dtopDivertXInput) {
|
|
(*dtopDivertXInput)(*ns);
|
|
c = -1; /* consumed by X */
|
|
} else if (c >= 0)
|
|
(*linesw[tp->t_line].l_rint)(c, tp);
|
|
dev->keyboard.k_ar_state = K_AR_ACTIVE;
|
|
}
|
|
/* return the related keycode anyways */
|
|
if ((c >= 0) && (retc == 0))
|
|
retc = c;
|
|
}
|
|
outc = retc;
|
|
/* install new scan state */
|
|
if (msg_len == 1)
|
|
dev->keyboard.last_codes[0] = save[0];
|
|
else if (msg_len > 0)
|
|
bcopy(save, dev->keyboard.last_codes, msg_len);
|
|
dev->keyboard.last_codes_count = msg_len;
|
|
if (dev->keyboard.k_ar_state == K_AR_ACTIVE)
|
|
timeout(dtop_keyboard_repeat, (void *)dev, hz / 2);
|
|
return (outc);
|
|
}
|
|
|
|
/*
|
|
* Do an autorepeat as required.
|
|
*/
|
|
void
|
|
dtop_keyboard_repeat(arg)
|
|
void *arg;
|
|
{
|
|
dtop_device_t dev = (dtop_device_t)arg;
|
|
register int i, c;
|
|
struct tty *tp = dtop_tty[0];
|
|
int s = spltty(), gotone = 0;
|
|
|
|
for (i = 0; i < dev->keyboard.last_codes_count; i++) {
|
|
c = (int)dev->keyboard.last_codes[i];
|
|
if (c != DTOP_KBD_EMPTY &&
|
|
(keymodes[(c >> 5) & 0x7] & (1 << (c & 0x1f))) == 0) {
|
|
dev->keyboard.k_ar_state = K_AR_TRIGGER;
|
|
if (dtopDivertXInput) {
|
|
(*dtopDivertXInput)(KEY_REPEAT);
|
|
gotone = 1;
|
|
continue;
|
|
}
|
|
|
|
if ((c = kbdMapChar(KEY_REPEAT)) >= 0) {
|
|
(*linesw[tp->t_line].l_rint)(c, tp);
|
|
gotone = 1;
|
|
}
|
|
}
|
|
}
|
|
if (gotone)
|
|
timeout(dtop_keyboard_repeat, arg, hz / 20);
|
|
else
|
|
dev->keyboard.k_ar_state = K_AR_IDLE;
|
|
splx(s);
|
|
}
|
|
#endif
|