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/*-
* 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.
*
* 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: release/9.1.0/sys/dev/usb/controller/uhci_pci.c 229118 2011-12-31 15:31:34Z hselasky $");
/* 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 <sys/stdint.h>
#include <sys/stddef.h>
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/sysctl.h>
#include <sys/sx.h>
#include <sys/unistd.h>
#include <sys/callout.h>
#include <sys/malloc.h>
#include <sys/priv.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usb_core.h>
#include <dev/usb/usb_busdma.h>
#include <dev/usb/usb_process.h>
#include <dev/usb/usb_util.h>
#include <dev/usb/usb_debug.h>
#include <dev/usb/usb_controller.h>
#include <dev/usb/usb_bus.h>
#include <dev/usb/usb_pci.h>
#include <dev/usb/controller/uhci.h>
#include <dev/usb/controller/uhcireg.h>
#include "usb_if.h"
#define PCI_UHCI_VENDORID_INTEL 0x8086
#define PCI_UHCI_VENDORID_VIA 0x1106
/* PIIX4E has no separate stepping */
static device_probe_t uhci_pci_probe;
static device_attach_t uhci_pci_attach;
static device_detach_t uhci_pci_detach;
static usb_take_controller_t uhci_pci_take_controller;
static int
uhci_pci_take_controller(device_t self)
{
pci_write_config(self, PCI_LEGSUP, PCI_LEGSUP_USBPIRQDEN, 2);
return (0);
}
static const char *
uhci_pci_match(device_t self)
{
uint32_t device_id = pci_get_devid(self);
switch (device_id) {
case 0x26888086:
return ("Intel 631XESB/632XESB/3100 USB controller USB-1");
case 0x26898086:
return ("Intel 631XESB/632XESB/3100 USB controller USB-2");
case 0x268a8086:
return ("Intel 631XESB/632XESB/3100 USB controller USB-3");
case 0x268b8086:
return ("Intel 631XESB/632XESB/3100 USB controller USB-4");
case 0x70208086:
return ("Intel 82371SB (PIIX3) USB controller");
case 0x71128086:
return ("Intel 82371AB/EB (PIIX4) USB controller");
case 0x24128086:
return ("Intel 82801AA (ICH) USB controller");
case 0x24228086:
return ("Intel 82801AB (ICH0) USB controller");
case 0x24428086:
return ("Intel 82801BA/BAM (ICH2) USB controller USB-A");
case 0x24448086:
return ("Intel 82801BA/BAM (ICH2) USB controller USB-B");
case 0x24828086:
return ("Intel 82801CA/CAM (ICH3) USB controller USB-A");
case 0x24848086:
return ("Intel 82801CA/CAM (ICH3) USB controller USB-B");
case 0x24878086:
return ("Intel 82801CA/CAM (ICH3) USB controller USB-C");
case 0x24c28086:
return ("Intel 82801DB (ICH4) USB controller USB-A");
case 0x24c48086:
return ("Intel 82801DB (ICH4) USB controller USB-B");
case 0x24c78086:
return ("Intel 82801DB (ICH4) USB controller USB-C");
case 0x24d28086:
return ("Intel 82801EB (ICH5) USB controller USB-A");
case 0x24d48086:
return ("Intel 82801EB (ICH5) USB controller USB-B");
case 0x24d78086:
return ("Intel 82801EB (ICH5) USB controller USB-C");
case 0x24de8086:
return ("Intel 82801EB (ICH5) USB controller USB-D");
case 0x26588086:
return ("Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-A");
case 0x26598086:
return ("Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-B");
case 0x265a8086:
return ("Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-C");
case 0x265b8086:
return ("Intel 82801FB/FR/FW/FRW (ICH6) USB controller USB-D");
case 0x27c88086:
return ("Intel 82801G (ICH7) USB controller USB-A");
case 0x27c98086:
return ("Intel 82801G (ICH7) USB controller USB-B");
case 0x27ca8086:
return ("Intel 82801G (ICH7) USB controller USB-C");
case 0x27cb8086:
return ("Intel 82801G (ICH7) USB controller USB-D");
case 0x28308086:
return ("Intel 82801H (ICH8) USB controller USB-A");
case 0x28318086:
return ("Intel 82801H (ICH8) USB controller USB-B");
case 0x28328086:
return ("Intel 82801H (ICH8) USB controller USB-C");
case 0x28348086:
return ("Intel 82801H (ICH8) USB controller USB-D");
case 0x28358086:
return ("Intel 82801H (ICH8) USB controller USB-E");
case 0x29348086:
return ("Intel 82801I (ICH9) USB controller");
case 0x29358086:
return ("Intel 82801I (ICH9) USB controller");
case 0x29368086:
return ("Intel 82801I (ICH9) USB controller");
case 0x29378086:
return ("Intel 82801I (ICH9) USB controller");
case 0x29388086:
return ("Intel 82801I (ICH9) USB controller");
case 0x29398086:
return ("Intel 82801I (ICH9) USB controller");
case 0x3a348086:
return ("Intel 82801JI (ICH10) USB controller USB-A");
case 0x3a358086:
return ("Intel 82801JI (ICH10) USB controller USB-B");
case 0x3a368086:
return ("Intel 82801JI (ICH10) USB controller USB-C");
case 0x3a378086:
return ("Intel 82801JI (ICH10) USB controller USB-D");
case 0x3a388086:
return ("Intel 82801JI (ICH10) USB controller USB-E");
case 0x3a398086:
return ("Intel 82801JI (ICH10) USB controller USB-F");
case 0x719a8086:
return ("Intel 82443MX USB controller");
case 0x76028086:
return ("Intel 82372FB/82468GX USB controller");
case 0x30381106:
return ("VIA 83C572 USB controller");
default:
break;
}
if ((pci_get_class(self) == PCIC_SERIALBUS) &&
(pci_get_subclass(self) == PCIS_SERIALBUS_USB) &&
(pci_get_progif(self) == PCI_INTERFACE_UHCI)) {
return ("UHCI (generic) USB controller");
}
return (NULL);
}
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;
/* initialise some bus fields */
sc->sc_bus.parent = self;
sc->sc_bus.devices = sc->sc_devices;
sc->sc_bus.devices_max = UHCI_MAX_DEVICES;
/* get all DMA memory */
if (usb_bus_mem_alloc_all(&sc->sc_bus, USB_GET_DMA_TAG(self),
&uhci_iterate_hw_softc)) {
return ENOMEM;
}
sc->sc_dev = self;
pci_enable_busmaster(self);
rid = PCI_UHCI_BASE_REG;
sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_IOPORT, &rid,
RF_ACTIVE);
if (!sc->sc_io_res) {
device_printf(self, "Could not map ports\n");
goto error;
}
sc->sc_io_tag = rman_get_bustag(sc->sc_io_res);
sc->sc_io_hdl = rman_get_bushandle(sc->sc_io_res);
sc->sc_io_size = rman_get_size(sc->sc_io_res);
/* disable interrupts */
bus_space_write_2(sc->sc_io_tag, sc->sc_io_hdl, UHCI_INTR, 0);
rid = 0;
sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid,
RF_SHAREABLE | RF_ACTIVE);
if (sc->sc_irq_res == NULL) {
device_printf(self, "Could not allocate irq\n");
goto error;
}
sc->sc_bus.bdev = device_add_child(self, "usbus", -1);
if (!sc->sc_bus.bdev) {
device_printf(self, "Could not add USB device\n");
goto error;
}
device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
/*
* 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_USB_REV_MASK) {
case PCI_USB_REV_PRE_1_0:
sc->sc_bus.usbrev = USB_REV_PRE_1_0;
break;
case PCI_USB_REV_1_0:
sc->sc_bus.usbrev = USB_REV_1_0;
break;
default:
/* Quirk for Parallels Desktop 4.0 */
device_printf(self, "USB revision is unknown. Assuming v1.1.\n");
sc->sc_bus.usbrev = USB_REV_1_1;
break;
}
#if (__FreeBSD_version >= 700031)
err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
NULL, (driver_intr_t *)uhci_interrupt, sc, &sc->sc_intr_hdl);
#else
err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
(driver_intr_t *)uhci_interrupt, sc, &sc->sc_intr_hdl);
#endif
if (err) {
device_printf(self, "Could not setup irq, %d\n", err);
sc->sc_intr_hdl = NULL;
goto error;
}
/*
* 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) {
err = device_probe_and_attach(sc->sc_bus.bdev);
}
if (err) {
device_printf(self, "USB init failed\n");
goto error;
}
return (0);
error:
uhci_pci_detach(self);
return (ENXIO);
}
int
uhci_pci_detach(device_t self)
{
uhci_softc_t *sc = device_get_softc(self);
device_t bdev;
if (sc->sc_bus.bdev) {
bdev = sc->sc_bus.bdev;
device_detach(bdev);
device_delete_child(self, bdev);
}
/* during module unload there are lots of children leftover */
device_delete_children(self);
/*
* disable interrupts that might have been switched on in
* uhci_init.
*/
if (sc->sc_io_res) {
USB_BUS_LOCK(&sc->sc_bus);
/* stop the controller */
uhci_reset(sc);
USB_BUS_UNLOCK(&sc->sc_bus);
}
pci_disable_busmaster(self);
if (sc->sc_irq_res && sc->sc_intr_hdl) {
int err = bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl);
if (err) {
/* XXX or should we panic? */
device_printf(self, "Could not tear down irq, %d\n",
err);
}
sc->sc_intr_hdl = NULL;
}
if (sc->sc_irq_res) {
bus_release_resource(self, SYS_RES_IRQ, 0, sc->sc_irq_res);
sc->sc_irq_res = NULL;
}
if (sc->sc_io_res) {
bus_release_resource(self, SYS_RES_IOPORT, PCI_UHCI_BASE_REG,
sc->sc_io_res);
sc->sc_io_res = NULL;
}
usb_bus_mem_free_all(&sc->sc_bus, &uhci_iterate_hw_softc);
return (0);
}
static device_method_t uhci_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, uhci_pci_probe),
DEVMETHOD(device_attach, uhci_pci_attach),
DEVMETHOD(device_detach, uhci_pci_detach),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD(usb_take_controller, uhci_pci_take_controller),
DEVMETHOD_END
};
static driver_t uhci_driver = {
.name = "uhci",
.methods = uhci_pci_methods,
.size = sizeof(struct uhci_softc),
};
static devclass_t uhci_devclass;
DRIVER_MODULE(uhci, pci, uhci_driver, uhci_devclass, 0, 0);
MODULE_DEPEND(uhci, usb, 1, 1, 1);