Index: head/sys/dev/usb/controller/xhci_pci.c
===================================================================
--- head/sys/dev/usb/controller/xhci_pci.c (revision 287824)
+++ head/sys/dev/usb/controller/xhci_pci.c (revision 287825)
@@ -1,383 +1,386 @@
/*-
* Copyright (c) 2010 Hans Petter Selasky. All rights reserved.
*
* 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 AUTHOR 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 AUTHOR 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("$FreeBSD$");
#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_controller.h>
#include <dev/usb/usb_bus.h>
#include <dev/usb/usb_pci.h>
#include <dev/usb/controller/xhci.h>
#include <dev/usb/controller/xhcireg.h>
#include "usb_if.h"
static device_probe_t xhci_pci_probe;
static device_attach_t xhci_pci_attach;
static device_detach_t xhci_pci_detach;
static usb_take_controller_t xhci_pci_take_controller;
static device_method_t xhci_device_methods[] = {
/* device interface */
DEVMETHOD(device_probe, xhci_pci_probe),
DEVMETHOD(device_attach, xhci_pci_attach),
DEVMETHOD(device_detach, xhci_pci_detach),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD(usb_take_controller, xhci_pci_take_controller),
DEVMETHOD_END
};
static driver_t xhci_driver = {
.name = "xhci",
.methods = xhci_device_methods,
.size = sizeof(struct xhci_softc),
};
static devclass_t xhci_devclass;
DRIVER_MODULE(xhci, pci, xhci_driver, xhci_devclass, NULL, NULL);
MODULE_DEPEND(xhci, usb, 1, 1, 1);
static const char *
xhci_pci_match(device_t self)
{
uint32_t device_id = pci_get_devid(self);
switch (device_id) {
case 0x01941033:
return ("NEC uPD720200 USB 3.0 controller");
case 0x10421b21:
return ("ASMedia ASM1042 USB 3.0 controller");
case 0x11421b21:
return ("ASMedia ASM1042A USB 3.0 controller");
case 0x0f358086:
return ("Intel Intel BayTrail USB 3.0 controller");
case 0x9c318086:
case 0x1e318086:
return ("Intel Panther Point USB 3.0 controller");
case 0x8c318086:
return ("Intel Lynx Point USB 3.0 controller");
case 0x8cb18086:
return ("Intel Wildcat Point USB 3.0 controller");
+ case 0xa01b177d:
+ return ("Cavium ThunderX USB 3.0 controller");
+
default:
break;
}
if ((pci_get_class(self) == PCIC_SERIALBUS)
&& (pci_get_subclass(self) == PCIS_SERIALBUS_USB)
&& (pci_get_progif(self) == PCIP_SERIALBUS_USB_XHCI)) {
return ("XHCI (generic) USB 3.0 controller");
}
return (NULL); /* dunno */
}
static int
xhci_pci_probe(device_t self)
{
const char *desc = xhci_pci_match(self);
if (desc) {
device_set_desc(self, desc);
return (BUS_PROBE_DEFAULT);
} else {
return (ENXIO);
}
}
static int xhci_use_msi = 1;
TUNABLE_INT("hw.usb.xhci.msi", &xhci_use_msi);
static void
xhci_interrupt_poll(void *_sc)
{
struct xhci_softc *sc = _sc;
USB_BUS_UNLOCK(&sc->sc_bus);
xhci_interrupt(sc);
USB_BUS_LOCK(&sc->sc_bus);
usb_callout_reset(&sc->sc_callout, 1, (void *)&xhci_interrupt_poll, sc);
}
static int
xhci_pci_port_route(device_t self, uint32_t set, uint32_t clear)
{
uint32_t temp;
uint32_t usb3_mask;
uint32_t usb2_mask;
temp = pci_read_config(self, PCI_XHCI_INTEL_USB3_PSSEN, 4) |
pci_read_config(self, PCI_XHCI_INTEL_XUSB2PR, 4);
temp |= set;
temp &= ~clear;
/* Don't set bits which the hardware doesn't support */
usb3_mask = pci_read_config(self, PCI_XHCI_INTEL_USB3PRM, 4);
usb2_mask = pci_read_config(self, PCI_XHCI_INTEL_USB2PRM, 4);
pci_write_config(self, PCI_XHCI_INTEL_USB3_PSSEN, temp & usb3_mask, 4);
pci_write_config(self, PCI_XHCI_INTEL_XUSB2PR, temp & usb2_mask, 4);
device_printf(self, "Port routing mask set to 0x%08x\n", temp);
return (0);
}
static int
xhci_pci_attach(device_t self)
{
struct xhci_softc *sc = device_get_softc(self);
int count, err, rid;
uint8_t usedma32;
rid = PCI_XHCI_CBMEM;
sc->sc_io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid,
RF_ACTIVE);
if (!sc->sc_io_res) {
device_printf(self, "Could not map memory\n");
return (ENOMEM);
}
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);
switch (pci_get_devid(self)) {
case 0x01941033: /* NEC uPD720200 USB 3.0 controller */
/* Don't use 64-bit DMA on these controllers. */
usedma32 = 1;
break;
case 0x0f358086: /* BayTrail */
case 0x9c318086: /* Panther Point */
case 0x1e318086: /* Panther Point */
case 0x8c318086: /* Lynx Point */
case 0x8cb18086: /* Wildcat Point */
/*
* On Intel chipsets, reroute ports from EHCI to XHCI
* controller and use a different IMOD value.
*/
sc->sc_port_route = &xhci_pci_port_route;
sc->sc_imod_default = XHCI_IMOD_DEFAULT_LP;
/* FALLTHROUGH */
default:
usedma32 = 0;
break;
}
if (xhci_init(sc, self, usedma32)) {
device_printf(self, "Could not initialize softc\n");
bus_release_resource(self, SYS_RES_MEMORY, PCI_XHCI_CBMEM,
sc->sc_io_res);
return (ENXIO);
}
pci_enable_busmaster(self);
usb_callout_init_mtx(&sc->sc_callout, &sc->sc_bus.bus_mtx, 0);
rid = 0;
if (xhci_use_msi) {
count = 1;
if (pci_alloc_msi(self, &count) == 0) {
if (bootverbose)
device_printf(self, "MSI enabled\n");
rid = 1;
}
}
sc->sc_irq_res = bus_alloc_resource_any(self, SYS_RES_IRQ, &rid,
RF_ACTIVE | (rid != 0 ? 0 : RF_SHAREABLE));
if (sc->sc_irq_res == NULL) {
pci_release_msi(self);
device_printf(self, "Could not allocate IRQ\n");
/* goto error; FALLTHROUGH - use polling */
}
sc->sc_bus.bdev = device_add_child(self, "usbus", -1);
if (sc->sc_bus.bdev == NULL) {
device_printf(self, "Could not add USB device\n");
goto error;
}
device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
sprintf(sc->sc_vendor, "0x%04x", pci_get_vendor(self));
if (sc->sc_irq_res != NULL) {
err = bus_setup_intr(self, sc->sc_irq_res, INTR_TYPE_BIO | INTR_MPSAFE,
NULL, (driver_intr_t *)xhci_interrupt, sc, &sc->sc_intr_hdl);
if (err != 0) {
bus_release_resource(self, SYS_RES_IRQ,
rman_get_rid(sc->sc_irq_res), sc->sc_irq_res);
sc->sc_irq_res = NULL;
pci_release_msi(self);
device_printf(self, "Could not setup IRQ, err=%d\n", err);
sc->sc_intr_hdl = NULL;
}
}
if (sc->sc_irq_res == NULL || sc->sc_intr_hdl == NULL) {
if (xhci_use_polling() != 0) {
device_printf(self, "Interrupt polling at %dHz\n", hz);
USB_BUS_LOCK(&sc->sc_bus);
xhci_interrupt_poll(sc);
USB_BUS_UNLOCK(&sc->sc_bus);
} else
goto error;
}
xhci_pci_take_controller(self);
err = xhci_halt_controller(sc);
if (err == 0)
err = xhci_start_controller(sc);
if (err == 0)
err = device_probe_and_attach(sc->sc_bus.bdev);
if (err) {
device_printf(self, "XHCI halt/start/probe failed err=%d\n", err);
goto error;
}
return (0);
error:
xhci_pci_detach(self);
return (ENXIO);
}
static int
xhci_pci_detach(device_t self)
{
struct xhci_softc *sc = device_get_softc(self);
device_t bdev;
if (sc->sc_bus.bdev != NULL) {
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);
usb_callout_drain(&sc->sc_callout);
xhci_halt_controller(sc);
pci_disable_busmaster(self);
if (sc->sc_irq_res && sc->sc_intr_hdl) {
bus_teardown_intr(self, sc->sc_irq_res, sc->sc_intr_hdl);
sc->sc_intr_hdl = NULL;
}
if (sc->sc_irq_res) {
bus_release_resource(self, SYS_RES_IRQ,
rman_get_rid(sc->sc_irq_res), sc->sc_irq_res);
sc->sc_irq_res = NULL;
pci_release_msi(self);
}
if (sc->sc_io_res) {
bus_release_resource(self, SYS_RES_MEMORY, PCI_XHCI_CBMEM,
sc->sc_io_res);
sc->sc_io_res = NULL;
}
xhci_uninit(sc);
return (0);
}
static int
xhci_pci_take_controller(device_t self)
{
struct xhci_softc *sc = device_get_softc(self);
uint32_t cparams;
uint32_t eecp;
uint32_t eec;
uint16_t to;
uint8_t bios_sem;
cparams = XREAD4(sc, capa, XHCI_HCSPARAMS0);
eec = -1;
/* Synchronise with the BIOS if it owns the controller. */
for (eecp = XHCI_HCS0_XECP(cparams) << 2; eecp != 0 && XHCI_XECP_NEXT(eec);
eecp += XHCI_XECP_NEXT(eec) << 2) {
eec = XREAD4(sc, capa, eecp);
if (XHCI_XECP_ID(eec) != XHCI_ID_USB_LEGACY)
continue;
bios_sem = XREAD1(sc, capa, eecp +
XHCI_XECP_BIOS_SEM);
if (bios_sem == 0)
continue;
device_printf(sc->sc_bus.bdev, "waiting for BIOS "
"to give up control\n");
XWRITE1(sc, capa, eecp +
XHCI_XECP_OS_SEM, 1);
to = 500;
while (1) {
bios_sem = XREAD1(sc, capa, eecp +
XHCI_XECP_BIOS_SEM);
if (bios_sem == 0)
break;
if (--to == 0) {
device_printf(sc->sc_bus.bdev,
"timed out waiting for BIOS\n");
break;
}
usb_pause_mtx(NULL, hz / 100); /* wait 10ms */
}
}
return (0);
}