static int
ehci_pci_resume(device_t self)
{
ehci_softc_t *sc = device_get_softc(self);
ehci_pci_takecontroller(self);
ehci_power(PWR_RESUME, sc);
bus_generic_resume(self);
return 0;
}
int
ehci_pci_activate(struct device *self, int act)
{
struct ehci_pci_softc *sc = (struct ehci_pci_softc *)self;
/* On resume, take ownership from the BIOS */
switch (act) {
case DVACT_RESUME:
ehci_pci_takecontroller(sc, 1);
break;
}
return ehci_activate(self, act);
}
int
ehci_pci_activate(struct device *self, int act)
{
struct ehci_pci_softc *sc = (struct ehci_pci_softc *)self;
int rv;
switch (act) {
case DVACT_RESUME:
ehci_pci_takecontroller(sc, 1);
break;
}
rv = ehci_activate(self, act);
#if 0
switch (act) {
case DVACT_POWERDOWN:
ehci_pci_givecontroller(sc);
break;
}
#endif
return (rv);
}
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;
const char *vendor;
char *devname = sc->sc.sc_bus.bdev.dv_xname;
usbd_status r;
int s;
/* 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, 0)) {
printf(": can't map mem space\n");
return;
}
sc->sc_pc = pc;
sc->sc_tag = tag;
sc->sc.sc_bus.dmatag = pa->pa_dmat;
/* Disable interrupts, so we don't get any spurious ones. */
s = splhardusb();
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);
/* Handle quirks */
switch (PCI_VENDOR(pa->pa_id)) {
case PCI_VENDOR_ATI:
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ATI_SB600_EHCI ||
(PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ATI_SB700_EHCI &&
pci_find_device(NULL, ehci_sb700_match))) {
pcireg_t value;
/* apply the ATI SB600/SB700 workaround */
value = pci_conf_read(sc->sc_pc, sc->sc_tag,
EHCI_SBx00_WORKAROUND_REG);
pci_conf_write(sc->sc_pc, sc->sc_tag,
EHCI_SBx00_WORKAROUND_REG, value |
EHCI_SBx00_WORKAROUND_ENABLE);
}
break;
case PCI_VENDOR_VIATECH:
if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_VIATECH_VT6202 &&
(PCI_REVISION(pa->pa_class) & 0xf0) == 0x60) {
pcireg_t value;
/*
* The VT6202 defaults to a 1 usec EHCI sleep time
* which hogs the PCI bus *badly*. Setting bit 5 of
* the register makes that sleep time use the conventional
* 10 usec.
*/
value = pci_conf_read(sc->sc_pc, sc->sc_tag,
EHCI_VT6202_WORKAROUND_REG);
pci_conf_write(sc->sc_pc, sc->sc_tag,
EHCI_VT6202_WORKAROUND_REG, value | 0x20000000);
}
break;
}
/* Map and establish the interrupt. */
if (pci_intr_map(pa, &ih)) {
printf(": couldn't map interrupt\n");
goto unmap_ret;
}
intrstr = pci_intr_string(pc, ih);
sc->sc_ih = pci_intr_establish(pc, ih, IPL_USB | IPL_MPSAFE,
ehci_intr, sc, devname);
if (sc->sc_ih == NULL) {
printf(": couldn't establish interrupt");
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
goto unmap_ret;
}
printf(": %s\n", 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;
printf("%s: pre-2.0 USB rev\n", devname);
goto disestablish_ret;
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));
/* Enable workaround for dropped interrupts as required */
if (sc->sc.sc_id_vendor == PCI_VENDOR_VIATECH)
sc->sc.sc_flags |= EHCIF_DROPPED_INTR_WORKAROUND;
ehci_pci_takecontroller(sc, 0);
r = ehci_init(&sc->sc);
if (r != USBD_NORMAL_COMPLETION) {
printf("%s: init failed, error=%d\n", devname, r);
goto disestablish_ret;
}
/* Attach usb device. */
config_found(self, &sc->sc.sc_bus, usbctlprint);
splx(s);
return;
disestablish_ret:
pci_intr_disestablish(sc->sc_pc, sc->sc_ih);
unmap_ret:
bus_space_unmap(sc->sc.iot, sc->sc.ioh, sc->sc.sc_size);
splx(s);
}
static int
ehci_pci_attach(device_t self)
{
ehci_softc_t *sc = device_get_softc(self);
devclass_t dc;
device_t parent;
device_t *neighbors;
device_t *nbus;
struct usbd_bus *bsc;
int err;
int rid;
int ncomp;
int count, buscount;
int slot, function;
int res;
int i;
switch(pci_read_config(self, PCI_USBREV, 1) & PCI_USBREV_MASK) {
case PCI_USBREV_PRE_1_0:
case PCI_USBREV_1_0:
case PCI_USBREV_1_1:
device_printf(self, "pre-2.0 USB rev\n");
if (pci_get_devid(self) == PCI_EHCI_DEVICEID_CS5536) {
sc->sc_bus.usbrev = USBREV_2_0;
device_printf(self, "Quirk for CS5536 USB 2.0 enabled\n");
break;
}
sc->sc_bus.usbrev = USBREV_UNKNOWN;
return ENXIO;
case PCI_USBREV_2_0:
sc->sc_bus.usbrev = USBREV_2_0;
break;
default:
sc->sc_bus.usbrev = USBREV_UNKNOWN;
break;
}
pci_enable_busmaster(self);
rid = PCI_CBMEM;
sc->io_res = bus_alloc_resource_any(self, SYS_RES_MEMORY, &rid,
RF_ACTIVE);
if (!sc->io_res) {
device_printf(self, "Could not map memory\n");
return ENXIO;
}
sc->iot = rman_get_bustag(sc->io_res);
sc->ioh = rman_get_bushandle(sc->io_res);
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");
ehci_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");
ehci_pci_detach(self);
return ENOMEM;
}
device_set_ivars(sc->sc_bus.bdev, &sc->sc_bus);
/* ehci_pci_match will never return NULL if ehci_pci_probe succeeded */
device_set_desc(sc->sc_bus.bdev, ehci_pci_match(self));
switch (pci_get_vendor(self)) {
case PCI_EHCI_VENDORID_ACERLABS:
sprintf(sc->sc_vendor, "AcerLabs");
break;
case PCI_EHCI_VENDORID_AMD:
sprintf(sc->sc_vendor, "AMD");
break;
case PCI_EHCI_VENDORID_APPLE:
sprintf(sc->sc_vendor, "Apple");
break;
case PCI_EHCI_VENDORID_ATI:
sprintf(sc->sc_vendor, "ATI");
break;
case PCI_EHCI_VENDORID_CMDTECH:
sprintf(sc->sc_vendor, "CMDTECH");
break;
case PCI_EHCI_VENDORID_INTEL:
sprintf(sc->sc_vendor, "Intel");
break;
case PCI_EHCI_VENDORID_NEC:
sprintf(sc->sc_vendor, "NEC");
break;
case PCI_EHCI_VENDORID_OPTI:
sprintf(sc->sc_vendor, "OPTi");
break;
case PCI_EHCI_VENDORID_SIS:
sprintf(sc->sc_vendor, "SiS");
break;
case PCI_EHCI_VENDORID_NVIDIA:
case PCI_EHCI_VENDORID_NVIDIA2:
sprintf(sc->sc_vendor, "nVidia");
break;
case PCI_EHCI_VENDORID_VIA:
sprintf(sc->sc_vendor, "VIA");
break;
default:
if (bootverbose)
device_printf(self, "(New EHCI DeviceId=0x%08x)\n",
pci_get_devid(self));
sprintf(sc->sc_vendor, "(0x%04x)", pci_get_vendor(self));
}
err = bus_setup_intr(self, sc->irq_res, INTR_TYPE_BIO,
NULL, (driver_intr_t *)ehci_intr, sc, &sc->ih);
if (err) {
device_printf(self, "Could not setup irq, %d\n", err);
sc->ih = NULL;
ehci_pci_detach(self);
return ENXIO;
}
/* Enable workaround for dropped interrupts as required */
switch (pci_get_vendor(self)) {
case PCI_EHCI_VENDORID_ATI:
case PCI_EHCI_VENDORID_VIA:
sc->sc_flags |= EHCI_SCFLG_LOSTINTRBUG;
if (bootverbose)
device_printf(self,
"Dropped interrupts workaround enabled\n");
break;
default:
break;
}
/*
* Find companion controllers. According to the spec they always
* have lower function numbers so they should be enumerated already.
*/
parent = device_get_parent(self);
res = device_get_children(parent, &neighbors, &count);
if (res != 0) {
device_printf(self, "Error finding companion busses\n");
ehci_pci_detach(self);
return ENXIO;
}
ncomp = 0;
dc = devclass_find("usb");
slot = pci_get_slot(self);
function = pci_get_function(self);
for (i = 0; i < count; i++) {
if (pci_get_slot(neighbors[i]) == slot && \
pci_get_function(neighbors[i]) < function) {
res = device_get_children(neighbors[i],
&nbus, &buscount);
if (res != 0)
continue;
if (buscount != 1) {
free(nbus, M_TEMP);
continue;
}
if (device_get_devclass(nbus[0]) != dc) {
free(nbus, M_TEMP);
continue;
}
bsc = device_get_softc(nbus[0]);
free(nbus, M_TEMP);
DPRINTF(("ehci_pci_attach: companion %s\n",
device_get_nameunit(bsc->bdev)));
sc->sc_comps[ncomp++] = bsc;
if (ncomp >= EHCI_COMPANION_MAX)
break;
}
}
sc->sc_ncomp = ncomp;
/* Allocate a parent dma tag for DMA maps */
err = bus_dma_tag_create(bus_get_dma_tag(self), 1, 0,
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
BUS_SPACE_MAXSIZE_32BIT, USB_DMA_NSEG, BUS_SPACE_MAXSIZE_32BIT, 0,
NULL, NULL, &sc->sc_bus.parent_dmatag);
if (err) {
device_printf(self, "Could not allocate parent DMA tag (%d)\n",
err);
ehci_pci_detach(self);
return ENXIO;
}
/* Allocate a dma tag for transfer buffers */
err = bus_dma_tag_create(sc->sc_bus.parent_dmatag, 1, 0,
BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
BUS_SPACE_MAXSIZE_32BIT, USB_DMA_NSEG, BUS_SPACE_MAXSIZE_32BIT, 0,
busdma_lock_mutex, &Giant, &sc->sc_bus.buffer_dmatag);
if (err) {
device_printf(self, "Could not allocate buffer DMA tag (%d)\n",
err);
ehci_pci_detach(self);
return ENXIO;
}
ehci_pci_takecontroller(self);
err = ehci_init(sc);
if (!err) {
sc->sc_flags |= EHCI_SCFLG_DONEINIT;
err = device_probe_and_attach(sc->sc_bus.bdev);
}
if (err) {
device_printf(self, "USB init failed err=%d\n", err);
ehci_pci_detach(self);
return EIO;
}
return 0;
}
