309 lines
8.5 KiB
C
309 lines
8.5 KiB
C
/*
|
|
* Copyright (c) 1998 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Lennart Augustsson (augustss@carlstedt.se) 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/* Universal Host Controller Interface
|
|
*
|
|
* UHCI spec: http://www.intel.com/
|
|
*/
|
|
|
|
/* The low level controller code for UHCI has been split into
|
|
* PCI probes and UHCI specific code. This was done to facilitate the
|
|
* sharing of code between *BSD's
|
|
*/
|
|
|
|
#include "opt_bus.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/queue.h>
|
|
#if defined(__FreeBSD__)
|
|
#include <sys/bus.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/resource.h>
|
|
#include <sys/rman.h>
|
|
#endif
|
|
|
|
#include <pci/pcivar.h>
|
|
#include <pci/pcireg.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>
|
|
|
|
#define PCI_UHCI_VENDORID_INTEL 0x8086
|
|
#define PCI_UHCI_VENDORID_VIA 0x1106
|
|
|
|
#define PCI_UHCI_DEVICEID_PIIX3 0x70208086
|
|
static const char *uhci_device_piix3 = "Intel 82371SB (PIIX3) USB controller";
|
|
#define PCI_UHCI_DEVICEID_PIIX4 0x71128086
|
|
#define PCI_UHCI_DEVICEID_PIIX4E 0x71128086 /* no separate stepping */
|
|
static const char *uhci_device_piix4 = "Intel 82371AB/EB (PIIX4) USB controller";
|
|
#define PCI_UHCI_DEVICEID_VT83C572 0x30381106
|
|
static const char *uhci_device_vt83c572 = "VIA 83C572 USB controller";
|
|
|
|
static const char *uhci_device_generic = "UHCI (generic) USB controller";
|
|
|
|
#define PCI_UHCI_BASE_REG 0x20
|
|
|
|
static int
|
|
uhci_pci_suspend(device_t self)
|
|
{
|
|
uhci_softc_t *sc = device_get_softc(self);
|
|
bus_generic_suspend(self);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
uhci_pci_resume(device_t self)
|
|
{
|
|
uhci_softc_t *sc = device_get_softc(self);
|
|
|
|
#if 0
|
|
uhci_reset(sc);
|
|
#endif
|
|
bus_generic_resume(self);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const char *
|
|
uhci_pci_match(device_t self)
|
|
{
|
|
u_int32_t device_id = pci_get_devid(self);
|
|
|
|
if (device_id == PCI_UHCI_DEVICEID_PIIX3) {
|
|
return (uhci_device_piix3);
|
|
} else if (device_id == PCI_UHCI_DEVICEID_PIIX4) {
|
|
return (uhci_device_piix4);
|
|
} else if (device_id == PCI_UHCI_DEVICEID_VT83C572) {
|
|
return (uhci_device_vt83c572);
|
|
} else {
|
|
if ( pci_get_class(self) == PCIC_SERIALBUS
|
|
&& pci_get_subclass(self) == PCIS_SERIALBUS_USB
|
|
&& pci_get_progif(self) == PCI_INTERFACE_UHCI) {
|
|
return (uhci_device_generic);
|
|
}
|
|
}
|
|
|
|
return NULL; /* dunno... */
|
|
}
|
|
|
|
static int
|
|
uhci_pci_probe(device_t self)
|
|
{
|
|
const char *desc = uhci_pci_match(self);
|
|
if (desc) {
|
|
device_set_desc(self, desc);
|
|
return 0;
|
|
} else {
|
|
return ENXIO;
|
|
}
|
|
}
|
|
|
|
static int
|
|
uhci_pci_attach(device_t self)
|
|
{
|
|
uhci_softc_t *sc = device_get_softc(self);
|
|
device_t parent = device_get_parent(self);
|
|
int rid;
|
|
void *ih;
|
|
struct resource *res;
|
|
device_t usbus;
|
|
char *typestr;
|
|
int intr;
|
|
int legsup;
|
|
int err;
|
|
|
|
rid = PCI_UHCI_BASE_REG;
|
|
res = bus_alloc_resource(self, SYS_RES_IOPORT, &rid,
|
|
0, ~0, 1, RF_ACTIVE);
|
|
if (!res) {
|
|
device_printf(self, "could not map ports\n");
|
|
return ENXIO;
|
|
}
|
|
|
|
sc->iot = rman_get_bustag(res);
|
|
sc->ioh = rman_get_bushandle(res);
|
|
|
|
/* disable interrupts */
|
|
bus_space_write_2(sc->iot, sc->ioh, UHCI_INTR, 0);
|
|
|
|
rid = 0;
|
|
res = bus_alloc_resource(self, SYS_RES_IRQ, &rid, 0, ~0, 1,
|
|
RF_SHAREABLE | RF_ACTIVE);
|
|
if (res == NULL) {
|
|
device_printf(self, "could not allocate irq\n");
|
|
return ENOMEM;
|
|
}
|
|
|
|
usbus = device_add_child(self, "usb", -1, sc);
|
|
if (!usbus) {
|
|
device_printf(self, "could not add USB device\n");
|
|
return ENOMEM;
|
|
}
|
|
|
|
switch (pci_get_devid(self)) {
|
|
case PCI_UHCI_DEVICEID_PIIX3:
|
|
device_set_desc(usbus, uhci_device_piix3);
|
|
sprintf(sc->sc_vendor, "Intel");
|
|
break;
|
|
case PCI_UHCI_DEVICEID_PIIX4:
|
|
device_set_desc(usbus, uhci_device_piix4);
|
|
sprintf(sc->sc_vendor, "Intel");
|
|
break;
|
|
case PCI_UHCI_DEVICEID_VT83C572:
|
|
device_set_desc(usbus, uhci_device_vt83c572);
|
|
sprintf(sc->sc_vendor, "VIA");
|
|
break;
|
|
default:
|
|
device_printf(self, "(New UHCI DeviceId=0x%08x)\n",
|
|
pci_get_devid(self));
|
|
device_set_desc(usbus, uhci_device_generic);
|
|
sprintf(sc->sc_vendor, "(0x%08x)", pci_get_devid(self));
|
|
}
|
|
|
|
if (bootverbose) {
|
|
switch(pci_read_config(self, PCI_USBREV, 4) & PCI_USBREV_MASK) {
|
|
case PCI_USBREV_PRE_1_0:
|
|
typestr = "pre 1.0";
|
|
break;
|
|
case PCI_USBREV_1_0:
|
|
typestr = "1.0";
|
|
break;
|
|
default:
|
|
typestr = "unknown";
|
|
break;
|
|
}
|
|
device_printf(self, "USB version %s, chip rev. %d\n",
|
|
typestr, pci_get_revid(self));
|
|
}
|
|
|
|
intr = pci_read_config(self, PCIR_INTLINE, 1);
|
|
if (intr == 0 || intr == 255) {
|
|
device_printf(self, "Invalid irq %d\n", intr);
|
|
device_printf(self, "Please switch on USB support and switch PNP-OS to 'No' in BIOS\n");
|
|
device_delete_child(self, usbus);
|
|
return ENXIO;
|
|
}
|
|
|
|
err = BUS_SETUP_INTR(parent, self, res, INTR_TYPE_BIO,
|
|
(driver_intr_t *) uhci_intr, sc, &ih);
|
|
if (err) {
|
|
device_printf(self, "could not setup irq, %d\n", err);
|
|
device_delete_child(self, usbus);
|
|
return err;
|
|
}
|
|
|
|
/* Verify that the PIRQD enable bit is set, some BIOS's don't do that */
|
|
legsup = pci_read_config(self, PCI_LEGSUP, 4);
|
|
if ( !(legsup & PCI_LEGSUP_USBPIRQDEN) ) {
|
|
#ifndef USB_DEBUG
|
|
if (bootverbose)
|
|
#endif
|
|
device_printf(self, "PIRQD enable not set\n");
|
|
legsup |= PCI_LEGSUP_USBPIRQDEN;
|
|
pci_write_config(self, PCI_LEGSUP, legsup, 4);
|
|
}
|
|
|
|
sc->sc_bus.bdev = usbus;
|
|
err = uhci_init(sc);
|
|
|
|
if (!err)
|
|
err = device_probe_and_attach(sc->sc_bus.bdev);
|
|
|
|
if (err) {
|
|
device_printf(self, "init failed\n");
|
|
|
|
/* disable interrupts that might have been switched on
|
|
* in uhci_init
|
|
*/
|
|
bus_space_write_2(sc->iot, sc->ioh, UHCI_INTR, 0);
|
|
|
|
err = BUS_TEARDOWN_INTR(parent, self, res, ih);
|
|
if (err)
|
|
/* XXX or should we panic? */
|
|
device_printf(self, "could not tear down irq, %d\n",
|
|
err);
|
|
|
|
device_delete_child(self, usbus);
|
|
return EIO; /* XXX arbitrary value */
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static device_method_t uhci_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, uhci_pci_probe),
|
|
DEVMETHOD(device_attach, uhci_pci_attach),
|
|
DEVMETHOD(device_suspend, uhci_pci_suspend),
|
|
DEVMETHOD(device_resume, uhci_pci_resume),
|
|
|
|
/* Bus interface */
|
|
DEVMETHOD(bus_print_child, bus_generic_print_child),
|
|
DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource),
|
|
DEVMETHOD(bus_release_resource, bus_generic_release_resource),
|
|
DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
|
|
DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
|
|
DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
|
|
DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
|
|
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t uhci_driver = {
|
|
"uhci",
|
|
uhci_methods,
|
|
sizeof(uhci_softc_t),
|
|
};
|
|
|
|
static devclass_t uhci_devclass;
|
|
|
|
DRIVER_MODULE(uhci, pci, uhci_driver, uhci_devclass, 0, 0);
|