158 lines
4.2 KiB
C
158 lines
4.2 KiB
C
/* $NetBSD: ms_kbc.c,v 1.6 2004/09/04 13:43:11 tsutsui Exp $ */
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/*-
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* Copyright (c) 2001 Izumi Tsutsui. All rights reserved.
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* Copyright (c) 2000 Tsubai Masanari. All rights reserved.
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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. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: ms_kbc.c,v 1.6 2004/09/04 13:43:11 tsutsui Exp $");
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/systm.h>
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#include <dev/wscons/wsconsio.h>
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#include <dev/wscons/wsmousevar.h>
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#include <machine/cpu.h>
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#include <machine/bus.h>
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#include <news68k/dev/kbcreg.h>
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#include <news68k/dev/kbcvar.h>
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#include <news68k/dev/msvar.h>
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#include <news68k/news68k/isr.h>
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static int ms_kbc_match(struct device *, struct cfdata *, void *);
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static void ms_kbc_attach(struct device *, struct device *, void *);
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static void ms_kbc_init(struct ms_softc *);
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int ms_kbc_intr(void *);
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static int ms_kbc_enable(void *);
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static void ms_kbc_disable(void *);
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static int ms_kbc_ioctl(void *, u_long, caddr_t, int, struct proc *);
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CFATTACH_DECL(ms_kbc, sizeof(struct ms_softc),
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ms_kbc_match, ms_kbc_attach, NULL, NULL);
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struct wsmouse_accessops ms_kbc_accessops = {
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ms_kbc_enable,
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ms_kbc_ioctl,
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ms_kbc_disable
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};
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static int
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ms_kbc_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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struct kbc_attach_args *ka = aux;
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if (strcmp(ka->ka_name, "ms"))
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return 0;
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return 1;
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}
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static void
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ms_kbc_attach(struct device *parent, struct device *self, void *aux)
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{
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struct ms_softc *sc = (void *)self;
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struct kbc_attach_args *ka = aux;
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struct wsmousedev_attach_args wsa;
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int ipl;
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printf("\n");
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sc->sc_bt = ka->ka_bt;
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sc->sc_bh = ka->ka_bh;
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sc->sc_offset = KBC_MSREG_DATA;
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ipl = ka->ka_ipl;
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ms_kbc_init(sc);
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isrlink_autovec(ms_kbc_intr, (void *)sc, ipl, ISRPRI_TTY);
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wsa.accessops = &ms_kbc_accessops;
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wsa.accesscookie = sc;
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sc->sc_wsmousedev = config_found(self, &wsa, wsmousedevprint);
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}
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static void
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ms_kbc_init(struct ms_softc *sc)
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{
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bus_space_tag_t bt = sc->sc_bt;
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bus_space_handle_t bh = sc->sc_bh;
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bus_space_write_1(bt, bh, KBC_MSREG_RESET, 0);
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bus_space_write_1(bt, bh, KBC_MSREG_INTE, KBC_INTE);
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}
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int
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ms_kbc_intr(void *v)
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{
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struct ms_softc *sc = v;
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bus_space_tag_t bt = sc->sc_bt;
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bus_space_handle_t bh = sc->sc_bh;
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int handled = 0;
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while (bus_space_read_1(bt, bh, KBC_MSREG_STAT) & KBCSTAT_MSRDY) {
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ms_intr(sc);
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handled = 1;
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}
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if (handled)
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bus_space_write_1(bt, bh, KBC_MSREG_INTE, KBC_INTE);
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return handled;
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}
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static int
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ms_kbc_enable(void *v)
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{
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struct ms_softc *sc = v;
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bus_space_tag_t bt = sc->sc_bt;
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bus_space_handle_t bh = sc->sc_bh;
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bus_space_write_1(bt, bh, KBC_MSREG_INTE, KBC_INTE);
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return 0;
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}
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static void
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ms_kbc_disable(void *v)
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{
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struct ms_softc *sc = v;
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bus_space_tag_t bt = sc->sc_bt;
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bus_space_handle_t bh = sc->sc_bh;
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bus_space_write_1(bt, bh, KBC_MSREG_INTE, 0);
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}
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static int
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ms_kbc_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p)
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{
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return EPASSTHROUGH;
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}
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