NetBSD/sys/arch/news68k/dev/kb_hb.c

164 lines
4.2 KiB
C

/* $NetBSD: kb_hb.c,v 1.7 2004/09/04 13:43:11 tsutsui Exp $ */
/*
* Copyright (c) 2001 Izumi Tsutsui.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kb_hb.c,v 1.7 2004/09/04 13:43:11 tsutsui Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <machine/bus.h>
#include <machine/cpu.h>
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wskbdvar.h>
#include <dev/wscons/wsksymdef.h>
#include <dev/wscons/wsksymvar.h>
#include <news68k/dev/hbvar.h>
#include <news68k/dev/kb_hbreg.h>
#include <news68k/dev/kbvar.h>
#include <news68k/news68k/isr.h>
#include "ioconf.h"
#define KB_SIZE 0x10 /* XXX */
#define KB_PRI 5
static int kb_hb_match(struct device *, struct cfdata *, void *);
static void kb_hb_attach(struct device *, struct device *, void *);
static void kb_hb_init(struct kb_softc *);
int kb_hb_intr(void *);
int kb_hb_cnattach(void);
CFATTACH_DECL(kb_hb, sizeof(struct kb_softc),
kb_hb_match, kb_hb_attach, NULL, NULL);
struct console_softc kb_hb_conssc;
static int
kb_hb_match(struct device *parent, struct cfdata *cf, void *aux)
{
struct hb_attach_args *ha = aux;
u_int addr;
if (strcmp(ha->ha_name, "kb"))
return 0;
/* XXX no default address */
if (ha->ha_address == (u_int)-1)
return 0;
addr = IIOV(ha->ha_address); /* XXX */
if (badaddr((void *)addr, 1))
return 0;
return 1;
}
static void
kb_hb_attach(struct device *parent, struct device *self, void *aux)
{
struct kb_softc *sc = (void *)self;
struct hb_attach_args *ha = aux;
bus_space_tag_t bt = ha->ha_bust;
bus_space_handle_t bh;
struct wskbddev_attach_args wsa;
int ipl;
if (bus_space_map(bt, ha->ha_address, KB_SIZE, 0, &bh) != 0) {
printf("can't map device space\n");
return;
}
printf("\n");
sc->sc_bt = bt;
sc->sc_bh = bh;
sc->sc_offset = KB_REG_DATA;
sc->sc_conssc = &kb_hb_conssc;
ipl = ha->ha_ipl;
if (ipl == -1)
ipl = KB_PRI;
kb_hb_init(sc);
isrlink_autovec(kb_hb_intr, (void *)sc, ipl, ISRPRI_TTY);
wsa.console = kb_hb_conssc.cs_isconsole;
wsa.keymap = &kb_keymapdata;
wsa.accessops = &kb_accessops;
wsa.accesscookie = sc;
sc->sc_wskbddev = config_found(self, &wsa, wskbddevprint);
}
static void
kb_hb_init(struct kb_softc *sc)
{
bus_space_tag_t bt = sc->sc_bt;
bus_space_handle_t bh = sc->sc_bh;
bus_space_write_1(bt, bh, KB_REG_RESET, 0);
bus_space_write_1(bt, bh, KB_REG_INTE, KB_INTE);
}
int
kb_hb_intr(void *arg)
{
struct kb_softc *sc = (struct kb_softc *)arg;
struct console_softc *kb_conssc = sc->sc_conssc;
bus_space_tag_t bt = sc->sc_bt;
bus_space_handle_t bh = sc->sc_bh;
int stat, handled = 0;
kb_conssc->cs_nintr++;
stat = bus_space_read_1(bt, bh, KB_REG_STAT);
if (stat & KBSTAT_RDY) {
kb_intr(sc);
handled = 1;
bus_space_write_1(bt, bh, KB_REG_INTE, KB_INTE);
}
return handled;
}
int
kb_hb_cnattach(void)
{
kb_hb_conssc.cs_isconsole = 1;
return kb_cnattach(&kb_hb_conssc);
}