FreeBSD-5.3/sys/dev/usb/uhci_pci.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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/sys/dev/usb/uhci_pci.c,v 1.54 2004/08/02 15:37:35 iedowse Exp $");
/* 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/queue.h>
#if defined(__FreeBSD__)
#include <sys/bus.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#endif
#include <dev/pci/pcivar.h>
#include <dev/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_ICH 0x24128086
static const char *uhci_device_ich = "Intel 82801AA (ICH) USB controller";
#define PCI_UHCI_DEVICEID_ICH0 0x24228086
static const char *uhci_device_ich0 = "Intel 82801AB (ICH0) USB controller";
#define PCI_UHCI_DEVICEID_ICH2_A 0x24428086
static const char *uhci_device_ich2_a = "Intel 82801BA/BAM (ICH2) USB controller USB-A";
#define PCI_UHCI_DEVICEID_ICH2_B 0x24448086
static const char *uhci_device_ich2_b = "Intel 82801BA/BAM (ICH2) USB controller USB-B";
#define PCI_UHCI_DEVICEID_ICH3_A 0x24828086
static const char *uhci_device_ich3_a = "Intel 82801CA/CAM (ICH3) USB controller USB-A";
#define PCI_UHCI_DEVICEID_ICH3_B 0x24848086
static const char *uhci_device_ich3_b = "Intel 82801CA/CAM (ICH3) USB controller USB-B";
#define PCI_UHCI_DEVICEID_ICH3_C 0x24878086
static const char *uhci_device_ich3_c = "Intel 82801CA/CAM (ICH3) USB controller USB-C";
#define PCI_UHCI_DEVICEID_ICH4_A 0x24c28086
static const char *uhci_device_ich4_a = "Intel 82801DB (ICH4) USB controller USB-A";
#define PCI_UHCI_DEVICEID_ICH4_B 0x24c48086
static const char *uhci_device_ich4_b = "Intel 82801DB (ICH4) USB controller USB-B";
#define PCI_UHCI_DEVICEID_ICH4_C 0x24c78086
static const char *uhci_device_ich4_c = "Intel 82801DB (ICH4) USB controller USB-C";
#define PCI_UHCI_DEVICEID_ICH5_A 0x24d28086
static const char *uhci_device_ich5_a = "Intel 82801EB (ICH5) USB controller USB-A";
#define PCI_UHCI_DEVICEID_ICH5_B 0x24d48086
static const char *uhci_device_ich5_b = "Intel 82801EB (ICH5) USB controller USB-B";
#define PCI_UHCI_DEVICEID_ICH5_C 0x24d78086
static const char *uhci_device_ich5_c = "Intel 82801EB (ICH5) USB controller USB-C";
#define PCI_UHCI_DEVICEID_ICH5_D 0x24de8086
static const char *uhci_device_ich5_d = "Intel 82801EB (ICH5) USB controller USB-D";
#define PCI_UHCI_DEVICEID_440MX 0x719a8086
static const char *uhci_device_440mx = "Intel 82443MX USB controller";
#define PCI_UHCI_DEVICEID_460GX 0x76028086
static const char *uhci_device_460gx = "Intel 82372FB/82468GX 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_attach(device_t self);
static int uhci_pci_detach(device_t self);
static int uhci_pci_suspend(device_t self);
static int uhci_pci_resume(device_t self);
static int
uhci_pci_suspend(device_t self)
{
uhci_softc_t *sc = device_get_softc(self);
int err;
err = bus_generic_suspend(self);
if (err)
return err;
uhci_power(PWR_SUSPEND, sc);
return 0;
}
static int
uhci_pci_resume(device_t self)
{
uhci_softc_t *sc = device_get_softc(self);
pci_write_config(self, PCI_LEGSUP, PCI_LEGSUP_USBPIRQDEN, 2);
uhci_power(PWR_RESUME, sc);
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_ICH) {
return (uhci_device_ich);
} else if (device_id == PCI_UHCI_DEVICEID_ICH0) {
return (uhci_device_ich0);
} else if (device_id == PCI_UHCI_DEVICEID_ICH2_A) {
return (uhci_device_ich2_a);
} else if (device_id == PCI_UHCI_DEVICEID_ICH2_B) {
return (uhci_device_ich2_b);
} else if (device_id == PCI_UHCI_DEVICEID_ICH3_A) {
return (uhci_device_ich3_a);
} else if (device_id == PCI_UHCI_DEVICEID_ICH3_B) {
return (uhci_device_ich3_b);
} else if (device_id == PCI_UHCI_DEVICEID_ICH3_C) {
return (uhci_device_ich3_c);
} else if (device_id == PCI_UHCI_DEVICEID_ICH4_A) {
return (uhci_device_ich4_a);
} else if (device_id == PCI_UHCI_DEVICEID_ICH4_B) {
return (uhci_device_ich4_b);
} else if (device_id == PCI_UHCI_DEVICEID_ICH4_C) {
return (uhci_device_ich4_c);
} else if (device_id == PCI_UHCI_DEVICEID_ICH5_A) {
return (uhci_device_ich5_a);
} else if (device_id == PCI_UHCI_DEVICEID_ICH5_B) {
return (uhci_device_ich5_b);
} else if (device_id == PCI_UHCI_DEVICEID_ICH5_C) {
return (uhci_device_ich5_c);
} else if (device_id == PCI_UHCI_DEVICEID_ICH5_D) {
return (uhci_device_ich5_d);
} else if (device_id == PCI_UHCI_DEVICEID_440MX) {
return (uhci_device_440mx);
} else if (device_id == PCI_UHCI_DEVICEID_460GX) {
return (uhci_device_460gx);
} 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);
int rid;
int err;
pci_enable_busmaster(self);
rid = PCI_UHCI_BASE_REG;
sc->io_res = bus_alloc_resource_any(self, SYS_RES_IOPORT, &rid,
RF_ACTIVE);
if (!sc->io_res) {
device_printf(self, "Could not map ports\n");
return ENXIO;
}
sc->iot = rman_get_bustag(sc->io_res);
sc->ioh = rman_get_bushandle(sc->io_res);
/* disable interrupts */
bus_space_write_2(sc->iot, sc->ioh, UHCI_INTR, 0);
rid = 0;
sc->irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid,
RF_SHAREABLE | RF_ACTIVE);
if (sc->irq_res == NULL) {
device_printf(self, "Could not allocate irq\n");
uhci_pci_detach(self);
return ENXIO;
}
sc->sc_bus.bdev = device_add_child(self, "usb", -1);
if (!sc->sc_bus.bdev) {
device_printf(self, "Could not add USB device\n");
uhci_pci_detach(self);
return ENOMEM;
}
device_set_ivars(sc->sc_bus.bdev, sc);
/* uhci_pci_match must never return NULL if uhci_pci_probe succeeded */
device_set_desc(sc->sc_bus.bdev, uhci_pci_match(self));
switch (pci_get_vendor(self)) {
case PCI_UHCI_VENDORID_INTEL:
sprintf(sc->sc_vendor, "Intel");
break;
case PCI_UHCI_VENDORID_VIA:
sprintf(sc->sc_vendor, "VIA");
break;
default:
if (bootverbose)
device_printf(self, "(New UHCI DeviceId=0x%08x)\n",
pci_get_devid(self));
sprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self));
}
switch (pci_read_config(self, PCI_USBREV, 1) & PCI_USBREV_MASK) {
case PCI_USBREV_PRE_1_0:
sc->sc_bus.usbrev = USBREV_PRE_1_0;
break;
case PCI_USBREV_1_0:
sc->sc_bus.usbrev = USBREV_1_0;
break;
default:
sc->sc_bus.usbrev = USBREV_UNKNOWN;
break;
}
err = bus_setup_intr(self, sc->irq_res, INTR_TYPE_BIO,
(driver_intr_t *) uhci_intr, sc, &sc->ih);
if (err) {
device_printf(self, "Could not setup irq, %d\n", err);
sc->ih = NULL;
uhci_pci_detach(self);
return ENXIO;
}
/*
* Set the PIRQD enable bit and switch off all the others. We don't
* want legacy support to interfere with us XXX Does this also mean
* that the BIOS won't touch the keyboard anymore if it is connected
* to the ports of the root hub?
*/
#ifdef USB_DEBUG
if (pci_read_config(self, PCI_LEGSUP, 2) != PCI_LEGSUP_USBPIRQDEN)
device_printf(self, "LegSup = 0x%04x\n",
pci_read_config(self, PCI_LEGSUP, 2));
#endif
pci_write_config(self, PCI_LEGSUP, PCI_LEGSUP_USBPIRQDEN, 2);
err = uhci_init(sc);
if (!err) {
sc->sc_flags |= UHCI_SCFLG_DONEINIT;
err = device_probe_and_attach(sc->sc_bus.bdev);
}
if (err) {
device_printf(self, "USB init failed\n");
uhci_pci_detach(self);
return EIO;
}
return 0; /* success */
}
int
uhci_pci_detach(device_t self)
{
uhci_softc_t *sc = device_get_softc(self);
if (sc->sc_flags & UHCI_SCFLG_DONEINIT) {
uhci_detach(sc, 0);
sc->sc_flags &= ~UHCI_SCFLG_DONEINIT;
}
if (sc->irq_res && sc->ih) {
int err = bus_teardown_intr(self, sc->irq_res, sc->ih);
if (err)
/* XXX or should we panic? */
device_printf(self, "Could not tear down irq, %d\n",
err);
sc->ih = NULL;
}
if (sc->sc_bus.bdev) {
device_delete_child(self, sc->sc_bus.bdev);
sc->sc_bus.bdev = NULL;
}
if (sc->irq_res) {
bus_release_resource(self, SYS_RES_IRQ, 0, sc->irq_res);
sc->irq_res = NULL;
}
if (sc->io_res) {
bus_release_resource(self, SYS_RES_IOPORT, PCI_UHCI_BASE_REG,
sc->io_res);
sc->io_res = NULL;
sc->iot = 0;
sc->ioh = 0;
}
return 0;
}
static device_method_t uhci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, uhci_pci_probe),
DEVMETHOD(device_attach, uhci_pci_attach),
DEVMETHOD(device_detach, uhci_pci_detach),
DEVMETHOD(device_suspend, uhci_pci_suspend),
DEVMETHOD(device_resume, uhci_pci_resume),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
/* Bus interface */
DEVMETHOD(bus_print_child, bus_generic_print_child),
{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);
DRIVER_MODULE(uhci, cardbus, uhci_driver, uhci_devclass, 0, 0);