226 lines
6.9 KiB
C
226 lines
6.9 KiB
C
/* $NetBSD: ehci_pci.c,v 1.15 2004/04/23 21:13:06 itojun Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2001, 2002 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Lennart Augustsson (lennart@augustsson.net).
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: ehci_pci.c,v 1.15 2004/04/23 21:13:06 itojun Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/device.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/queue.h>
|
|
|
|
#include <machine/bus.h>
|
|
|
|
#include <dev/pci/pcivar.h>
|
|
#include <dev/pci/usb_pci.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/ehcireg.h>
|
|
#include <dev/usb/ehcivar.h>
|
|
|
|
#ifdef EHCI_DEBUG
|
|
#define DPRINTF(x) if (ehcidebug) printf x
|
|
extern int ehcidebug;
|
|
#else
|
|
#define DPRINTF(x)
|
|
#endif
|
|
|
|
int ehci_pci_match(struct device *, struct cfdata *, void *);
|
|
void ehci_pci_attach(struct device *, struct device *, void *);
|
|
int ehci_pci_detach(device_ptr_t, int);
|
|
|
|
struct ehci_pci_softc {
|
|
ehci_softc_t sc;
|
|
pci_chipset_tag_t sc_pc;
|
|
pcitag_t sc_tag;
|
|
void *sc_ih; /* interrupt vectoring */
|
|
};
|
|
|
|
CFATTACH_DECL(ehci_pci, sizeof(struct ehci_pci_softc),
|
|
ehci_pci_match, ehci_pci_attach, ehci_pci_detach, ehci_activate);
|
|
|
|
int
|
|
ehci_pci_match(struct device *parent, struct cfdata *match, void *aux)
|
|
{
|
|
struct pci_attach_args *pa = (struct pci_attach_args *) aux;
|
|
|
|
if (PCI_CLASS(pa->pa_class) == PCI_CLASS_SERIALBUS &&
|
|
PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_SERIALBUS_USB &&
|
|
PCI_INTERFACE(pa->pa_class) == PCI_INTERFACE_EHCI)
|
|
return (1);
|
|
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
ehci_pci_attach(struct device *parent, struct device *self, void *aux)
|
|
{
|
|
struct ehci_pci_softc *sc = (struct ehci_pci_softc *)self;
|
|
struct pci_attach_args *pa = (struct pci_attach_args *)aux;
|
|
pci_chipset_tag_t pc = pa->pa_pc;
|
|
pcitag_t tag = pa->pa_tag;
|
|
char const *intrstr;
|
|
pci_intr_handle_t ih;
|
|
pcireg_t csr;
|
|
char *vendor;
|
|
char *devname = sc->sc.sc_bus.bdev.dv_xname;
|
|
char devinfo[256];
|
|
usbd_status r;
|
|
int ncomp;
|
|
struct usb_pci *up;
|
|
|
|
aprint_naive(": USB controller\n");
|
|
|
|
pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo));
|
|
aprint_normal(": %s (rev. 0x%02x)\n", devinfo,
|
|
PCI_REVISION(pa->pa_class));
|
|
|
|
/* Map I/O registers */
|
|
if (pci_mapreg_map(pa, PCI_CBMEM, PCI_MAPREG_TYPE_MEM, 0,
|
|
&sc->sc.iot, &sc->sc.ioh, NULL, &sc->sc.sc_size)) {
|
|
aprint_error("%s: can't map memory space\n", devname);
|
|
return;
|
|
}
|
|
|
|
sc->sc_pc = pc;
|
|
sc->sc_tag = tag;
|
|
sc->sc.sc_bus.dmatag = pa->pa_dmat;
|
|
|
|
/* Enable the device. */
|
|
csr = pci_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
|
|
pci_conf_write(pc, tag, PCI_COMMAND_STATUS_REG,
|
|
csr | PCI_COMMAND_MASTER_ENABLE);
|
|
|
|
/* Disable interrupts, so we don't get any spurious ones. */
|
|
sc->sc.sc_offs = EREAD1(&sc->sc, EHCI_CAPLENGTH);
|
|
DPRINTF(("%s: offs=%d\n", devname, sc->sc.sc_offs));
|
|
EOWRITE2(&sc->sc, EHCI_USBINTR, 0);
|
|
|
|
/* Map and establish the interrupt. */
|
|
if (pci_intr_map(pa, &ih)) {
|
|
aprint_error("%s: couldn't map interrupt\n", devname);
|
|
return;
|
|
}
|
|
intrstr = pci_intr_string(pc, ih);
|
|
sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB, ehci_intr, sc);
|
|
if (sc->sc_ih == NULL) {
|
|
aprint_error("%s: couldn't establish interrupt", devname);
|
|
if (intrstr != NULL)
|
|
aprint_normal(" at %s", intrstr);
|
|
aprint_normal("\n");
|
|
return;
|
|
}
|
|
aprint_normal("%s: interrupting at %s\n", devname, intrstr);
|
|
|
|
switch(pci_conf_read(pc, tag, PCI_USBREV) & PCI_USBREV_MASK) {
|
|
case PCI_USBREV_PRE_1_0:
|
|
case PCI_USBREV_1_0:
|
|
case PCI_USBREV_1_1:
|
|
sc->sc.sc_bus.usbrev = USBREV_UNKNOWN;
|
|
aprint_normal("%s: pre-2.0 USB rev\n", devname);
|
|
return;
|
|
case PCI_USBREV_2_0:
|
|
sc->sc.sc_bus.usbrev = USBREV_2_0;
|
|
break;
|
|
default:
|
|
sc->sc.sc_bus.usbrev = USBREV_UNKNOWN;
|
|
break;
|
|
}
|
|
|
|
/* Figure out vendor for root hub descriptor. */
|
|
vendor = pci_findvendor(pa->pa_id);
|
|
sc->sc.sc_id_vendor = PCI_VENDOR(pa->pa_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(pa->pa_id));
|
|
|
|
/*
|
|
* Find companion controllers. According to the spec they always
|
|
* have lower function numbers so they should be enumerated already.
|
|
*/
|
|
ncomp = 0;
|
|
TAILQ_FOREACH(up, &ehci_pci_alldevs, next) {
|
|
if (up->bus == pa->pa_bus && up->device == pa->pa_device) {
|
|
DPRINTF(("ehci_pci_attach: companion %s\n",
|
|
USBDEVNAME(up->usb->bdev)));
|
|
sc->sc.sc_comps[ncomp++] = up->usb;
|
|
if (ncomp >= EHCI_COMPANION_MAX)
|
|
break;
|
|
}
|
|
}
|
|
sc->sc.sc_ncomp = ncomp;
|
|
|
|
r = ehci_init(&sc->sc);
|
|
if (r != USBD_NORMAL_COMPLETION) {
|
|
aprint_error("%s: init failed, error=%d\n", devname, r);
|
|
return;
|
|
}
|
|
|
|
/* Attach usb device. */
|
|
sc->sc.sc_child = config_found((void *)sc, &sc->sc.sc_bus,
|
|
usbctlprint);
|
|
}
|
|
|
|
int
|
|
ehci_pci_detach(device_ptr_t self, int flags)
|
|
{
|
|
struct ehci_pci_softc *sc = (struct ehci_pci_softc *)self;
|
|
int rv;
|
|
|
|
rv = ehci_detach(&sc->sc, flags);
|
|
if (rv)
|
|
return (rv);
|
|
if (sc->sc_ih != NULL) {
|
|
pci_intr_disestablish(sc->sc_pc, sc->sc_ih);
|
|
sc->sc_ih = NULL;
|
|
}
|
|
if (sc->sc.sc_size) {
|
|
bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size);
|
|
sc->sc.sc_size = 0;
|
|
}
|
|
return (0);
|
|
}
|