* Copyright (c) 2001 Izumi Tsutsui. All rights reserved.

/* $NetBSD: ms_hb.c,v 1.16 2021/08/07 16:19:00 thorpej 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.
*
* 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.
*/

/*-
* Copyright (c) 2000 Tsubai Masanari. 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: ms_hb.c,v 1.16 2021/08/07 16:19:00 thorpej Exp $");

#include <sys/param.h>
#include <sys/device.h>
#include <sys/systm.h>

#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsmousevar.h>

#include <machine/bus.h>
#include <machine/cpu.h>

#include <news68k/dev/hbvar.h>
#include <news68k/dev/ms_hbreg.h>
#include <news68k/dev/msvar.h>

#include <news68k/news68k/isr.h>

#define MS_SIZE 0x10 /* XXX */
#define MS_IPL 5

static int ms_hb_match(device_t, cfdata_t, void *);
static void ms_hb_attach(device_t, device_t, void *);
static void ms_hb_init(struct ms_softc *);
int ms_hb_intr(void *);

static int ms_hb_enable(void *);
static int ms_hb_ioctl(void *, u_long, void *, int, struct lwp *);
static void ms_hb_disable(void *);

CFATTACH_DECL_NEW(ms_hb, sizeof(struct ms_softc),
ms_hb_match, ms_hb_attach, NULL, NULL);

struct wsmouse_accessops ms_hb_accessops = {
ms_hb_enable,
ms_hb_ioctl,
ms_hb_disable
};

static int
ms_hb_match(device_t parent, cfdata_t cf, void *aux)
{
struct hb_attach_args *ha = aux;
u_int addr;

if (strcmp(ha->ha_name, "ms"))
return 0;

/* XXX no default address */
if (ha->ha_address == (u_int)-1)
return 0;

addr = ha->ha_address; /* XXX */

if (badaddr((void *)addr, 1))
return 0;

return 1;
}

static void
ms_hb_attach(device_t parent, device_t self, void *aux)
{
struct ms_softc *sc = device_private(self);
struct hb_attach_args *ha = aux;
bus_space_tag_t bt = ha->ha_bust;
bus_space_handle_t bh;
struct wsmousedev_attach_args wsa;
int ipl;

sc->sc_dev = self;
if (bus_space_map(bt, ha->ha_address, MS_SIZE, 0, &bh) != 0) {
aprint_error(": can't map device space\n");
return;
}

aprint_normal("\n");

sc->sc_bt = bt;
sc->sc_bh = bh;
sc->sc_offset = MS_REG_DATA;
ipl = ha->ha_ipl;
if (ipl == -1)
ipl = MS_IPL;

ms_hb_init(sc);

isrlink_autovec(ms_hb_intr, (void *)sc, ipl, IPL_TTY);

wsa.accessops = &ms_hb_accessops;
wsa.accesscookie = sc;
sc->sc_wsmousedev = config_found(self, &wsa, wsmousedevprint,
CFARGS_NONE);
}

static void
ms_hb_init(struct ms_softc *sc)
{
bus_space_tag_t bt = sc->sc_bt;
bus_space_handle_t bh = sc->sc_bh;

bus_space_write_1(bt, bh, MS_REG_RESET, 0);
bus_space_write_1(bt, bh, MS_REG_INTE, MS_INTE);
}

int
ms_hb_intr(void *v)
{
struct ms_softc *sc = v;
bus_space_tag_t bt = sc->sc_bt;
bus_space_handle_t bh = sc->sc_bh;
int handled = 0;

while ((bus_space_read_1(bt, bh, MS_REG_STAT) & MSSTAT_RDY) != 0) {
ms_intr(sc);
handled = 1;
}
if (handled)
bus_space_write_1(bt, bh, MS_REG_INTE, MS_INTE);

return handled;
}

static int
ms_hb_enable(void *v)
{
struct ms_softc *sc = v;
bus_space_tag_t bt = sc->sc_bt;
bus_space_handle_t bh = sc->sc_bh;

bus_space_write_1(bt, bh, MS_REG_INTE, MS_INTE);

return 0;
}

static void
ms_hb_disable(void *v)
{
struct ms_softc *sc = v;
bus_space_tag_t bt = sc->sc_bt;
bus_space_handle_t bh = sc->sc_bh;

bus_space_write_1(bt, bh, MS_REG_INTE, 0);
}

static int
ms_hb_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l)
{

return EPASSTHROUGH;
}