static int
rtwn_usb_attach(device_t self)
{
struct usb_attach_arg *uaa = device_get_ivars(self);
struct rtwn_usb_softc *uc = device_get_softc(self);
struct rtwn_softc *sc = &uc->uc_sc;
struct ieee80211com *ic = &sc->sc_ic;
int error;
device_set_usb_desc(self);
uc->uc_udev = uaa->device;
sc->sc_dev = self;
ic->ic_name = device_get_nameunit(self);
/* Need to be initialized early. */
rtwn_sysctlattach(sc);
rtwn_usb_sysctlattach(sc);
mtx_init(&sc->sc_mtx, ic->ic_name, MTX_NETWORK_LOCK, MTX_DEF);
rtwn_usb_attach_methods(sc);
rtwn_usb_attach_private(uc, USB_GET_DRIVER_INFO(uaa));
error = rtwn_usb_setup_endpoints(uc);
if (error != 0)
goto detach;
/* Allocate Tx/Rx buffers. */
error = rtwn_usb_alloc_rx_list(sc);
if (error != 0)
goto detach;
error = rtwn_usb_alloc_tx_list(sc);
if (error != 0)
goto detach;
/* Generic attach. */
error = rtwn_attach(sc);
if (error != 0)
goto detach;
return (0);
detach:
rtwn_usb_detach(self); /* failure */
return (ENXIO);
}
static int
rtwn_pci_attach(device_t dev)
{
const struct rtwn_pci_ident *ident;
struct rtwn_pci_softc *pc = device_get_softc(dev);
struct rtwn_softc *sc = &pc->pc_sc;
struct ieee80211com *ic = &sc->sc_ic;
uint32_t lcsr;
int cap_off, i, error, rid;
ident = rtwn_pci_probe_sub(dev);
if (ident == NULL)
return (ENXIO);
/*
* Get the offset of the PCI Express Capability Structure in PCI
* Configuration Space.
*/
error = pci_find_cap(dev, PCIY_EXPRESS, &cap_off);
if (error != 0) {
device_printf(dev, "PCIe capability structure not found!\n");
return (error);
}
/* Enable bus-mastering. */
pci_enable_busmaster(dev);
rid = PCIR_BAR(2);
pc->mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
RF_ACTIVE);
if (pc->mem == NULL) {
device_printf(dev, "can't map mem space\n");
return (ENOMEM);
}
pc->pc_st = rman_get_bustag(pc->mem);
pc->pc_sh = rman_get_bushandle(pc->mem);
/* Install interrupt handler. */
rid = 1;
if (pci_alloc_msi(dev, &rid) == 0)
rid = 1;
else
rid = 0;
pc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE |
(rid != 0 ? 0 : RF_SHAREABLE));
if (pc->irq == NULL) {
device_printf(dev, "can't map interrupt\n");
goto detach;
}
/* Disable PCIe Active State Power Management (ASPM). */
lcsr = pci_read_config(dev, cap_off + PCIER_LINK_CTL, 4);
lcsr &= ~PCIEM_LINK_CTL_ASPMC;
pci_write_config(dev, cap_off + PCIER_LINK_CTL, lcsr, 4);
sc->sc_dev = dev;
ic->ic_name = device_get_nameunit(dev);
/* Need to be initialized early. */
rtwn_sysctlattach(sc);
mtx_init(&sc->sc_mtx, ic->ic_name, MTX_NETWORK_LOCK, MTX_DEF);
rtwn_pci_attach_methods(sc);
rtwn_pci_attach_private(pc, ident->chip);
/* Allocate Tx/Rx buffers. */
error = rtwn_pci_alloc_rx_list(sc);
if (error != 0) {
device_printf(dev,
"could not allocate Rx buffers, error %d\n",
error);
goto detach;
}
for (i = 0; i < RTWN_PCI_NTXQUEUES; i++) {
error = rtwn_pci_alloc_tx_list(sc, i);
if (error != 0) {
device_printf(dev,
"could not allocate Tx buffers, error %d\n",
error);
goto detach;
}
}
/* Generic attach. */
error = rtwn_attach(sc);
if (error != 0)
goto detach;
/*
* Hook our interrupt after all initialization is complete.
*/
error = bus_setup_intr(dev, pc->irq, INTR_TYPE_NET | INTR_MPSAFE,
NULL, rtwn_pci_intr, sc, &pc->pc_ih);
if (error != 0) {
device_printf(dev, "can't establish interrupt, error %d\n",
error);
goto detach;
}
return (0);
detach:
rtwn_pci_detach(dev); /* failure */
return (ENXIO);
}
