NetBSD/sys/arch/macppc/dev/if_wi_obio.c

/*	$NetBSD: if_wi_obio.c,v 1.9 2003/12/07 05:44:49 dyoung Exp $	*/

/*-
 * Copyright (c) 2001 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: if_wi_obio.c,v 1.9 2003/12/07 05:44:49 dyoung Exp $");

#include "opt_inet.h"

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

#ifdef INET
#include <net/if.h>
#include <net/if_ether.h>
#include <net/if_media.h>
#include <net80211/ieee80211_var.h>
#include <net80211/ieee80211_compat.h>
#include <net80211/ieee80211_radiotap.h>
#include <net80211/ieee80211_rssadapt.h>
#endif

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

#include <dev/ic/wi_ieee.h>
#include <dev/ic/wireg.h>
#include <dev/ic/wivar.h>

int wi_obio_match(struct device *, struct cfdata *, void *);
void wi_obio_attach(struct device *, struct device *, void *);
int wi_obio_enable(struct wi_softc *);
void wi_obio_disable(struct wi_softc *);
void wi_obio_powerhook(int, void *);
void wi_obio_shutdown(void *);

struct wi_obio_softc {
	struct wi_softc sc_wi;
	void *sc_powerhook;
	void *sc_sdhook;
};

CFATTACH_DECL(wi_obio, sizeof(struct wi_obio_softc),
    wi_obio_match, wi_obio_attach, NULL, NULL);

int
wi_obio_match(parent, match, aux)
	struct device *parent;
	struct cfdata *match;
	void *aux;
{
	struct confargs *ca = aux;

	if (ca->ca_nintr < 4 || ca->ca_nreg < 8)
		return 0;

	if (strcmp(ca->ca_name, "radio") != 0)
		return 0;

	return 1;
}

void
wi_obio_attach(parent, self, aux)
	struct device *parent, *self;
	void *aux;
{
	struct wi_obio_softc *sc = (void *)self;
	struct wi_softc *wisc = &sc->sc_wi;
	struct confargs *ca = aux;

	printf(" irq %d:", ca->ca_intr[0]);
	intr_establish(ca->ca_intr[0], IST_LEVEL, IPL_NET, wi_intr, sc);

	wisc->sc_iot =
	    macppc_make_bus_space_tag(ca->ca_baseaddr + ca->ca_reg[0], 0);
	if (bus_space_map(wisc->sc_iot, 0, ca->ca_reg[1], 0, &wisc->sc_ioh)) {
		printf(" can't map i/o space\n");
		return;
	}

	wisc->sc_enabled = 1;
	wisc->sc_enable = wi_obio_enable;
	wisc->sc_disable = wi_obio_disable;

	if (wi_attach(wisc)) {
		printf("%s: failed to attach controller\n", self->dv_xname);
		return;
	}

	sc->sc_sdhook = shutdownhook_establish(wi_obio_shutdown, sc);
	sc->sc_powerhook = powerhook_establish(wi_obio_powerhook, sc);

	/* Disable the card. */
	wisc->sc_enabled = 0;
	wi_obio_disable(wisc);
}

int
wi_obio_enable(sc)
	struct wi_softc *sc;
{
	const u_int keywest = 0x80000000;	/* XXX */
	const u_int fcr2 = keywest + 0x40;
	const u_int gpio = keywest + 0x6a;
	const u_int extint_gpio = keywest + 0x58;
	u_int x;

	x = in32rb(fcr2);
	x |= 0x4;
	out32rb(fcr2, x);

	/* Enable card slot. */
	out8(gpio + 0x0f, 5);
	delay(1000);
	out8(gpio + 0x0f, 4);
	delay(1000);

	x = in32rb(fcr2);
	x &= ~0x8000000;

	out32rb(fcr2, x);
	/* out8(gpio + 0x10, 4); */

	out8(extint_gpio + 0x0b, 0);
	out8(extint_gpio + 0x0a, 0x28);
	out8(extint_gpio + 0x0d, 0x28);
	out8(gpio + 0x0d, 0x28);
	out8(gpio + 0x0e, 0x28);
	out32rb(keywest + 0x1c000, 0);

	/* Initialize the card. */
	out32rb(keywest + 0x1a3e0, 0x41);
	x = in32rb(fcr2);
	x |= 0x8000000;
	out32rb(fcr2, x);

	return 0;
}

void
wi_obio_disable(sc)
	struct wi_softc *sc;
{
	const u_int keywest = 0x80000000;	/* XXX */
	const u_int fcr2 = keywest + 0x40;
	u_int x;

	x = in32rb(fcr2);
	x &= ~0x4;
	out32rb(fcr2, x);
	/* out8(gpio + 0x10, 0); */
}

void
wi_obio_powerhook(why, arg)
	int why;
	void *arg;
{
	struct wi_softc *sc = arg;

	wi_power(sc, why);
}

void
wi_obio_shutdown(arg)
	void *arg;
{
	struct wi_softc *sc = arg;

	wi_shutdown(sc);
}