NetBSD/sys/dev/cardbus/ohci_cardbus.c

/*	$NetBSD: ohci_cardbus.c,v 1.9 2001/05/09 19:33:07 augustss Exp $	*/

/*
 * Copyright (c) 1998 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Lennart Augustsson (lennart@augustsson.net) at
 * Carlstedt Research & Technology.
 *
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *        This product includes software developed by the NetBSD
 *        Foundation, Inc. and its contributors.
 * 4. Neither the name of The NetBSD Foundation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``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 FOUNDATION OR CONTRIBUTORS
 * 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.
 */

/*
 * USB Open Host Controller driver.
 *
 * OHCI spec: http://www.intel.com/design/usb/ohci11d.pdf
 * USB spec: http://www.teleport.com/cgi-bin/mailmerge.cgi/~usb/cgiform.tpl
 */

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

#include <machine/bus.h>

#if defined pciinc
#include <dev/pci/pcidevs.h>
#endif

#include <dev/cardbus/cardbusvar.h>
#include <dev/cardbus/cardbusdevs.h>

#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdivar.h>
#include <dev/usb/usb_mem.h>

#include <dev/usb/ohcireg.h>
#include <dev/usb/ohcivar.h>

int	ohci_cardbus_match(struct device *, struct cfdata *, void *);
void	ohci_cardbus_attach(struct device *, struct device *, void *);
int	ohci_cardbus_detach(device_ptr_t, int);

struct ohci_cardbus_softc {
	ohci_softc_t		sc;
	cardbus_chipset_tag_t	sc_cc;
	cardbus_function_tag_t	sc_cf;
	cardbus_devfunc_t	sc_ct;
	void 			*sc_ih;		/* interrupt vectoring */
};

struct cfattach ohci_cardbus_ca = {
	sizeof(struct ohci_cardbus_softc), ohci_cardbus_match,
	ohci_cardbus_attach, ohci_cardbus_detach, ohci_activate
};

#define CARDBUS_INTERFACE_OHCI PCI_INTERFACE_OHCI
#define CARDBUS_CBMEM PCI_CBMEM
#define cardbus_findvendor pci_findvendor
#define cardbus_devinfo pci_devinfo

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

	if (CARDBUS_CLASS(ca->ca_class) == CARDBUS_CLASS_SERIALBUS &&
	    CARDBUS_SUBCLASS(ca->ca_class) == CARDBUS_SUBCLASS_SERIALBUS_USB &&
	    CARDBUS_INTERFACE(ca->ca_class) == CARDBUS_INTERFACE_OHCI)
		return (1);
 
	return (0);
}

void
ohci_cardbus_attach(struct device *parent, struct device *self, void *aux)
{
	struct ohci_cardbus_softc *sc = (struct ohci_cardbus_softc *)self;
	struct cardbus_attach_args *ca = aux;
	cardbus_devfunc_t ct = ca->ca_ct;
	cardbus_chipset_tag_t cc = ct->ct_cc;
	cardbus_function_tag_t cf = ct->ct_cf;
	cardbusreg_t csr;
	char devinfo[256];
	usbd_status r;
	char *vendor;
	const char *devname = sc->sc.sc_bus.bdev.dv_xname;

	cardbus_devinfo(ca->ca_id, ca->ca_class, 0, devinfo);
	printf(": %s (rev. 0x%02x)\n", devinfo,
	       CARDBUS_REVISION(ca->ca_class));

	/* Map I/O registers */
	if (Cardbus_mapreg_map(ct, CARDBUS_CBMEM, CARDBUS_MAPREG_TYPE_MEM, 0,
			   &sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) {
		printf("%s: can't map mem space\n", devname);
		return;
	}

	/* Disable interrupts, so we don't can any spurious ones. */
	bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE,
			  OHCI_ALL_INTRS);

	sc->sc_cc = cc;
	sc->sc_cf = cf;
	sc->sc_ct = ct;
	sc->sc.sc_bus.dmatag = ca->ca_dmat;

#if rbus
#else
XXX	(ct->ct_cf->cardbus_mem_open)(cc, 0, iob, iob + 0x40);
#endif
	(ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_MEM_ENABLE);
	(ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);

	/* Enable the device. */
	csr = cardbus_conf_read(cc, cf, ca->ca_tag,
				CARDBUS_COMMAND_STATUS_REG);
	cardbus_conf_write(cc, cf, ca->ca_tag, CARDBUS_COMMAND_STATUS_REG,
		       csr | CARDBUS_COMMAND_MASTER_ENABLE
			   | CARDBUS_COMMAND_MEM_ENABLE);

	sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline,
					   IPL_USB, ohci_intr, sc);
	if (sc->sc_ih == NULL) {
		printf("%s: couldn't establish interrupt\n", devname);
		return;
	}
	printf("%s: interrupting at %d\n", devname, ca->ca_intrline);

	/* Figure out vendor for root hub descriptor. */
	vendor = cardbus_findvendor(ca->ca_id);
	sc->sc.sc_id_vendor = CARDBUS_VENDOR(ca->ca_id);
	if (vendor)
		strncpy(sc->sc.sc_vendor, vendor,
			sizeof(sc->sc.sc_vendor) - 1);
	else
		sprintf(sc->sc.sc_vendor, "vendor 0x%04x", 
			CARDBUS_VENDOR(ca->ca_id));
	
	r = ohci_init(&sc->sc);
	if (r != USBD_NORMAL_COMPLETION) {
		printf("%s: init failed, error=%d\n", devname, r);

		/* Avoid spurious interrupts. */
		cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
		sc->sc_ih = 0;

		return;
	}

	/* Attach usb device. */
	sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus,
				       usbctlprint);
}

int
ohci_cardbus_detach(device_ptr_t self, int flags)
{
	struct ohci_cardbus_softc *sc = (struct ohci_cardbus_softc *)self;
	struct cardbus_devfunc *ct = sc->sc_ct;
	int rv;

	rv = ohci_detach(&sc->sc, flags);
	if (rv)
		return (rv);
	if (sc->sc_ih != NULL) {
		cardbus_intr_disestablish(sc->sc_cc, sc->sc_cf, sc->sc_ih);
		sc->sc_ih = NULL;
	}
	if (sc->sc.sc_size) {
		Cardbus_mapreg_unmap(ct, CARDBUS_CBMEM, sc->sc.iot,
		    sc->sc.ioh, sc->sc.sc_size);
		sc->sc.sc_size = 0;
	}
	return (0);
}