static void
epic_pci_attach(device_t parent, device_t self, void *aux)
{
struct epic_pci_softc *psc = device_private(self);
struct epic_softc *sc = &psc->sc_epic;
struct pci_attach_args *pa = aux;
pci_chipset_tag_t pc = pa->pa_pc;
pci_intr_handle_t ih;
const char *intrstr = NULL;
const struct epic_pci_product *epp;
const struct epic_pci_subsys_info *esp;
bus_space_tag_t iot, memt;
bus_space_handle_t ioh, memh;
int ioh_valid, memh_valid;
int error;
sc->sc_dev = self;
epp = epic_pci_lookup(pa);
if (epp == NULL) {
aprint_normal("\n");
panic("%s: impossible", __func__);
}
pci_aprint_devinfo_fancy(pa, "Ethernet controller", epp->epp_name, 1);
/* power up chip */
if ((error = pci_activate(pa->pa_pc, pa->pa_tag, self,
NULL)) && error != EOPNOTSUPP) {
aprint_error_dev(self, "cannot activate %d\n", error);
return;
}
/*
* Map the device.
*/
ioh_valid = (pci_mapreg_map(pa, EPIC_PCI_IOBA,
PCI_MAPREG_TYPE_IO, 0,
&iot, &ioh, NULL, NULL) == 0);
memh_valid = (pci_mapreg_map(pa, EPIC_PCI_MMBA,
PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
&memt, &memh, NULL, NULL) == 0);
if (memh_valid) {
sc->sc_st = memt;
sc->sc_sh = memh;
} else if (ioh_valid) {
sc->sc_st = iot;
sc->sc_sh = ioh;
} else {
aprint_error_dev(self, "unable to map device registers\n");
return;
}
sc->sc_dmat = pa->pa_dmat;
/* Make sure bus mastering is enabled. */
pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) |
PCI_COMMAND_MASTER_ENABLE);
/*
* Map and establish our interrupt.
*/
if (pci_intr_map(pa, &ih)) {
aprint_error_dev(self, "unable to map interrupt\n");
return;
}
intrstr = pci_intr_string(pc, ih);
psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, epic_intr, sc);
if (psc->sc_ih == NULL) {
aprint_error_dev(self, "unable to establish interrupt");
if (intrstr != NULL)
aprint_error(" at %s", intrstr);
aprint_error("\n");
return;
}
aprint_normal_dev(self, "interrupting at %s\n", intrstr);
esp = epic_pci_subsys_lookup(pa);
if (esp)
sc->sc_hwflags = esp->flags;
/*
* Finish off the attach.
*/
epic_attach(sc);
}
void
epic_pci_attach(struct device *parent, struct device *self, void *aux)
{
struct epic_pci_softc *psc = (struct epic_pci_softc *)self;
struct epic_softc *sc = &psc->sc_epic;
struct pci_attach_args *pa = aux;
pci_chipset_tag_t pc = pa->pa_pc;
pci_intr_handle_t ih;
const char *intrstr = NULL;
const struct epic_pci_subsys_info *esp;
bus_space_tag_t iot, memt;
bus_space_handle_t ioh, memh;
pcireg_t reg;
int pmreg, ioh_valid, memh_valid;
if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, &pmreg, 0)) {
reg = pci_conf_read(pc, pa->pa_tag, pmreg + PCI_PMCSR);
switch (reg & PCI_PMCSR_STATE_MASK) {
case PCI_PMCSR_STATE_D1:
case PCI_PMCSR_STATE_D2:
printf(": waking up from power state D%d\n",
reg & PCI_PMCSR_STATE_MASK);
pci_conf_write(pc, pa->pa_tag, pmreg + PCI_PMCSR,
(reg & ~PCI_PMCSR_STATE_MASK) |
PCI_PMCSR_STATE_D0);
break;
case PCI_PMCSR_STATE_D3:
/*
* IO and MEM are disabled. We can't enable
* the card because the BARs might be invalid.
*/
printf(
": unable to wake up from power state D3, "
"reboot required.\n");
pci_conf_write(pc, pa->pa_tag, pmreg + PCI_PMCSR,
(reg & ~PCI_PMCSR_STATE_MASK) |
PCI_PMCSR_STATE_D0);
return;
}
}
/*
* Map the device.
*/
ioh_valid = (pci_mapreg_map(pa, EPIC_PCI_IOBA,
PCI_MAPREG_TYPE_IO, 0,
&iot, &ioh, NULL, NULL, 0) == 0);
memh_valid = (pci_mapreg_map(pa, EPIC_PCI_MMBA,
PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
&memt, &memh, NULL, NULL, 0) == 0);
if (memh_valid) {
sc->sc_st = memt;
sc->sc_sh = memh;
} else if (ioh_valid) {
sc->sc_st = iot;
sc->sc_sh = ioh;
} else {
printf(": unable to map device registers\n");
return;
}
sc->sc_dmat = pa->pa_dmat;
/*
* Map and establish our interrupt.
*/
if (pci_intr_map(pa, &ih)) {
printf(": unable to map interrupt\n");
return;
}
intrstr = pci_intr_string(pc, ih);
psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET, epic_intr, sc,
self->dv_xname);
if (psc->sc_ih == NULL) {
printf(": unable to establish interrupt");
if (intrstr != NULL)
printf(" at %s", intrstr);
printf("\n");
return;
}
esp = epic_pci_subsys_lookup(pa);
if (esp)
sc->sc_hwflags = esp->flags;
/*
* Finish off the attach.
*/
epic_attach(sc, intrstr);
}
