static int
cardbus_attach_card(device_t cbdev)
{
device_t brdev = device_get_parent(cbdev);
device_t child;
int bus, domain, slot, func;
int cardattached = 0;
int cardbusfunchigh = 0;
struct cardbus_softc *sc;
sc = device_get_softc(cbdev);
cardbus_detach_card(cbdev); /* detach existing cards */
POWER_ENABLE_SOCKET(brdev, cbdev);
domain = pcib_get_domain(cbdev);
bus = pcib_get_bus(cbdev);
slot = 0;
/* For each function, set it up and try to attach a driver to it */
for (func = 0; func <= cardbusfunchigh; func++) {
struct cardbus_devinfo *dinfo;
dinfo = (struct cardbus_devinfo *)
pci_read_device(brdev, domain, bus, slot, func,
sizeof(struct cardbus_devinfo));
if (dinfo == NULL)
continue;
if (dinfo->pci.cfg.mfdev)
cardbusfunchigh = PCI_FUNCMAX;
child = device_add_child(cbdev, NULL, -1);
if (child == NULL) {
DEVPRINTF((cbdev, "Cannot add child!\n"));
pci_freecfg((struct pci_devinfo *)dinfo);
continue;
}
dinfo->pci.cfg.dev = child;
resource_list_init(&dinfo->pci.resources);
device_set_ivars(child, dinfo);
cardbus_device_create(sc, dinfo, cbdev, child);
if (cardbus_do_cis(cbdev, child) != 0)
DEVPRINTF((cbdev, "Warning: Bogus CIS ignored\n"));
pci_cfg_save(dinfo->pci.cfg.dev, &dinfo->pci, 0);
pci_cfg_restore(dinfo->pci.cfg.dev, &dinfo->pci);
cardbus_device_setup_regs(&dinfo->pci.cfg);
pci_add_resources(cbdev, child, 1, dinfo->mprefetchable);
pci_print_verbose(&dinfo->pci);
if (device_probe_and_attach(child) == 0)
cardattached++;
else
pci_cfg_save(dinfo->pci.cfg.dev, &dinfo->pci, 1);
}
if (cardattached > 0)
return (0);
/* POWER_DISABLE_SOCKET(brdev, cbdev); */
return (ENOENT);
}
int
acpi_pci_suspend(device_t dev)
{
int dstate, error, i, numdevs;
device_t acpi_dev, child, *devlist;
struct pci_devinfo *dinfo;
acpi_dev = devclass_get_device(devclass_find("acpi"), 0);
device_get_children(dev, &devlist, &numdevs);
/*
* Save the PCI configuration space for each child and set the
* device in the appropriate power state for this sleep state.
*/
for (i = 0; i < numdevs; i++) {
child = devlist[i];
dinfo = (struct pci_devinfo *)device_get_ivars(child);
pci_cfg_save(child, dinfo, 0);
}
/*
* Suspend devices before potentially powering them down.
*/
error = bus_generic_suspend(dev);
if (error) {
kfree(devlist, M_TEMP);
return (error);
}
/*
* Always set the device to D3. If ACPI suggests a different
* power state, use it instead. If ACPI is not present, the
* firmware is responsible for managing device power. Skip
* children who aren't attached since they are powered down
* separately. Only manage type 0 devices for now.
*/
for (i = 0; acpi_dev && i < numdevs; i++) {
child = devlist[i];
dinfo = (struct pci_devinfo *)device_get_ivars(child);
if (device_is_attached(child) && dinfo->cfg.hdrtype == 0) {
dstate = PCI_POWERSTATE_D3;
ACPI_PWR_FOR_SLEEP(acpi_dev, child, &dstate);
pci_set_powerstate(child, dstate);
}
}
kfree(devlist, M_TEMP);
return (0);
}
static void
cardbus_driver_added(device_t cbdev, driver_t *driver)
{
int numdevs;
device_t *devlist;
device_t dev;
int i;
struct cardbus_devinfo *dinfo;
DEVICE_IDENTIFY(driver, cbdev);
if (device_get_children(cbdev, &devlist, &numdevs) != 0)
return;
/*
* If there are no drivers attached, but there are children,
* then power the card up.
*/
for (i = 0; i < numdevs; i++) {
dev = devlist[i];
if (device_get_state(dev) != DS_NOTPRESENT)
break;
}
if (i > 0 && i == numdevs)
POWER_ENABLE_SOCKET(device_get_parent(cbdev), cbdev);
for (i = 0; i < numdevs; i++) {
dev = devlist[i];
if (device_get_state(dev) != DS_NOTPRESENT)
continue;
dinfo = device_get_ivars(dev);
pci_print_verbose(&dinfo->pci);
if (bootverbose)
printf("pci%d:%d:%d:%d: reprobing on driver added\n",
dinfo->pci.cfg.domain, dinfo->pci.cfg.bus,
dinfo->pci.cfg.slot, dinfo->pci.cfg.func);
pci_cfg_restore(dinfo->pci.cfg.dev, &dinfo->pci);
if (device_probe_and_attach(dev) != 0)
pci_cfg_save(dev, &dinfo->pci, 1);
}
free(devlist, M_TEMP);
}
