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/* $OpenBSD: uhci_cardbus.c,v 1.11 2010/03/27 21:40:13 jsg 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.
*
* 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.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <machine/bus.h>
#include <dev/cardbus/cardbusvar.h>
#include <dev/pci/pcidevs.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/uhcireg.h>
#include <dev/usb/uhcivar.h>
int uhci_cardbus_match(struct device *, void *, void *);
void uhci_cardbus_attach(struct device *, struct device *, void *);
int uhci_cardbus_detach(struct device *, int);
struct uhci_cardbus_softc {
uhci_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 uhci_cardbus_ca = {
sizeof(struct uhci_cardbus_softc), uhci_cardbus_match,
uhci_cardbus_attach, uhci_cardbus_detach, uhci_activate
};
#define cardbus_findvendor pci_findvendor
int
uhci_cardbus_match(struct device *parent, void *match, void *aux)
{
struct cardbus_attach_args *ca = (struct cardbus_attach_args *)aux;
if (PCI_CLASS(ca->ca_class) == PCI_CLASS_SERIALBUS &&
PCI_SUBCLASS(ca->ca_class) == PCI_SUBCLASS_SERIALBUS_USB &&
PCI_INTERFACE(ca->ca_class) == PCI_INTERFACE_UHCI)
return (1);
return (0);
}
void
uhci_cardbus_attach(struct device *parent, struct device *self, void *aux)
{
struct uhci_cardbus_softc *sc = (struct uhci_cardbus_softc *)self;
struct cardbus_attach_args *ca = aux;
cardbus_devfunc_t ct = ca->ca_ct;
cardbus_chipset_tag_t cc = ct->ct_cc;
pci_chipset_tag_t pc = ca->ca_pc;
cardbus_function_tag_t cf = ct->ct_cf;
pcireg_t csr;
usbd_status r;
const char *vendor;
const char *devname = sc->sc.sc_bus.bdev.dv_xname;
/* Map I/O registers */
if (Cardbus_mapreg_map(ct, PCI_CBIO, PCI_MAPREG_TYPE_IO, 0,
&sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) {
printf(": can't map io space\n");
return;
}
/* Disable interrupts, so we don't get any spurious ones. */
bus_space_write_2(sc->sc.iot, sc->sc.ioh, UHCI_INTR, 0);
sc->sc_cc = cc;
sc->sc_cf = cf;
sc->sc_ct = ct;
sc->sc.sc_bus.dmatag = ca->ca_dmat;
(ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_IO_ENABLE);
(ct->ct_cf->cardbus_ctrl)(cc, CARDBUS_BM_ENABLE);
/* Enable the device. */
csr = pci_conf_read(pc, ca->ca_tag,
PCI_COMMAND_STATUS_REG);
pci_conf_write(pc, ca->ca_tag, PCI_COMMAND_STATUS_REG,
csr | PCI_COMMAND_MASTER_ENABLE
| PCI_COMMAND_IO_ENABLE);
sc->sc_ih = cardbus_intr_establish(cc, cf, ca->ca_intrline,
IPL_USB, uhci_intr, sc, devname);
if (sc->sc_ih == NULL) {
printf(": couldn't establish interrupt\n");
return;
}
printf(": irq %d\n", ca->ca_intrline);
/* Set LEGSUP register to its default value. */
pci_conf_write(pc, ca->ca_tag, PCI_LEGSUP,
PCI_LEGSUP_USBPIRQDEN);
switch(pci_conf_read(pc, ca->ca_tag, PCI_USBREV) & PCI_USBREV_MASK) {
case PCI_USBREV_PRE_1_0:
sc->sc.sc_bus.usbrev = USBREV_PRE_1_0;
break;
case PCI_USBREV_1_0:
sc->sc.sc_bus.usbrev = USBREV_1_0;
break;
case PCI_USBREV_1_1:
sc->sc.sc_bus.usbrev = USBREV_1_1;
break;
default:
sc->sc.sc_bus.usbrev = USBREV_UNKNOWN;
break;
}
uhci_run(&sc->sc, 0); /* stop the controller */
/* disable interrupts */
bus_space_barrier(sc->sc.iot, sc->sc.ioh, 0, sc->sc.sc_size,
BUS_SPACE_BARRIER_READ|BUS_SPACE_BARRIER_WRITE);
bus_space_write_2(sc->sc.iot, sc->sc.ioh, UHCI_INTR, 0);
/* Figure out vendor for root hub descriptor. */
vendor = cardbus_findvendor(ca->ca_id);
sc->sc.sc_id_vendor = PCI_VENDOR(ca->ca_id);
if (vendor)
strlcpy(sc->sc.sc_vendor, vendor, sizeof (sc->sc.sc_vendor));
else
snprintf(sc->sc.sc_vendor, sizeof(sc->sc.sc_vendor),
"vendor 0x%04x", PCI_VENDOR(ca->ca_id));
r = uhci_init(&sc->sc);
if (r != USBD_NORMAL_COMPLETION) {
printf("%s: init failed, error=%d\n", devname, r);
bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size);
return;
}
/* Attach usb device. */
sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus,
usbctlprint);
}
int
uhci_cardbus_detach(struct device *self, int flags)
{
struct uhci_cardbus_softc *sc = (struct uhci_cardbus_softc *)self;
struct cardbus_devfunc *ct = sc->sc_ct;
int rv;
rv = uhci_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, PCI_CBIO, sc->sc.iot,
sc->sc.ioh, sc->sc.sc_size);
sc->sc.sc_size = 0;
}
return (0);
}
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