#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/pci_hotplug.h>
+#include <linux/pci-acpi.h>
#include <linux/mutex.h>
#include "../pci.h"
static void acpiphp_set_hpp_values(acpi_handle handle, struct pci_bus *bus);
static void handle_hotplug_event_func(acpi_handle handle, u32 type, void *context);
-
-/*
- * initialization & terminatation routines
- */
-
-/**
- * is_ejectable - determine if a slot is ejectable
- * @handle: handle to acpi namespace
- *
- * Ejectable slot should satisfy at least these conditions:
- *
- * 1. has _ADR method
- * 2. has _EJ0 method
- *
- * optionally
- *
- * 1. has _STA method
- * 2. has _PS0 method
- * 3. has _PS3 method
- * 4. ..
- */
-static int is_ejectable(acpi_handle handle)
-{
- acpi_status status;
- acpi_handle tmp;
-
- status = acpi_get_handle(handle, "_ADR", &tmp);
- if (ACPI_FAILURE(status)) {
- return 0;
- }
-
- status = acpi_get_handle(handle, "_EJ0", &tmp);
- if (ACPI_FAILURE(status)) {
- return 0;
- }
-
- return 1;
-}
-
-
-/* callback routine to check for the existence of ejectable slots */
-static acpi_status
-is_ejectable_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
-{
- int *count = (int *)context;
-
- if (is_ejectable(handle)) {
- (*count)++;
- /* only one ejectable slot is enough */
- return AE_CTRL_TERMINATE;
- } else {
- return AE_OK;
- }
-}
-
/* callback routine to check for the existence of a pci dock device */
static acpi_status
is_pci_dock_device(acpi_handle handle, u32 lvl, void *context, void **rv)
}
}
-
-
-
/*
* the _DCK method can do funny things... and sometimes not
* hah-hah funny.
if (((buses >> 8) & 0xff) != bus->secondary) {
buses = (buses & 0xff000000)
- | ((unsigned int)(bus->primary) << 0)
- | ((unsigned int)(bus->secondary) << 8)
- | ((unsigned int)(bus->subordinate) << 16);
+ | ((unsigned int)(bus->primary) << 0)
+ | ((unsigned int)(bus->secondary) << 8)
+ | ((unsigned int)(bus->subordinate) << 16);
pci_write_config_dword(bus->self, PCI_PRIMARY_BUS, buses);
}
return NOTIFY_OK;
acpi_status status = AE_OK;
unsigned long long adr, sun;
int device, function, retval;
+ struct pci_bus *pbus = bridge->pci_bus;
- status = acpi_evaluate_integer(handle, "_ADR", NULL, &adr);
-
- if (ACPI_FAILURE(status))
- return AE_OK;
-
- status = acpi_get_handle(handle, "_EJ0", &tmp);
-
- if (ACPI_FAILURE(status) && !(is_dock_device(handle)))
+ if (!acpi_pci_check_ejectable(pbus, handle) && !is_dock_device(handle))
return AE_OK;
+ acpi_evaluate_integer(handle, "_ADR", NULL, &adr);
device = (adr >> 16) & 0xffff;
function = adr & 0xffff;
INIT_LIST_HEAD(&newfunc->sibling);
newfunc->handle = handle;
newfunc->function = function;
- if (ACPI_SUCCESS(status))
+
+ if (ACPI_SUCCESS(acpi_get_handle(handle, "_EJ0", &tmp)))
newfunc->flags = FUNC_HAS_EJ0;
if (ACPI_SUCCESS(acpi_get_handle(handle, "_STA", &tmp)))
bridge->nr_slots++;
dbg("found ACPI PCI Hotplug slot %llu at PCI %04x:%02x:%02x\n",
- slot->sun, pci_domain_nr(bridge->pci_bus),
- bridge->pci_bus->number, slot->device);
+ slot->sun, pci_domain_nr(pbus), pbus->number, device);
retval = acpiphp_register_hotplug_slot(slot);
if (retval) {
if (retval == -EBUSY)
list_add_tail(&newfunc->sibling, &slot->funcs);
/* associate corresponding pci_dev */
- newfunc->pci_dev = pci_get_slot(bridge->pci_bus,
- PCI_DEVFN(device, function));
+ newfunc->pci_dev = pci_get_slot(pbus, PCI_DEVFN(device, function));
if (newfunc->pci_dev) {
slot->flags |= (SLOT_ENABLED | SLOT_POWEREDON);
}
/* see if it's worth looking at this bridge */
-static int detect_ejectable_slots(acpi_handle *bridge_handle)
+static int detect_ejectable_slots(struct pci_bus *pbus)
{
- acpi_status status;
- int count;
-
- count = 0;
-
- /* only check slots defined directly below bridge object */
- status = acpi_walk_namespace(ACPI_TYPE_DEVICE, bridge_handle, (u32)1,
- is_ejectable_slot, (void *)&count, NULL);
-
- /*
- * we also need to add this bridge if there is a dock bridge or
- * other pci device on a dock station (removable)
- */
- if (!count)
- status = acpi_walk_namespace(ACPI_TYPE_DEVICE, bridge_handle,
- (u32)1, is_pci_dock_device, (void *)&count,
- NULL);
-
- return count;
+ int found = acpi_pci_detect_ejectable(pbus);
+ if (!found) {
+ acpi_handle bridge_handle = acpi_pci_get_bridge_handle(pbus);
+ acpi_walk_namespace(ACPI_TYPE_DEVICE, bridge_handle, (u32)1,
+ is_pci_dock_device, (void *)&found, NULL);
+ }
+ return found;
}
goto out;
/* check if this bridge has ejectable slots */
- if ((detect_ejectable_slots(handle) > 0)) {
+ if ((detect_ejectable_slots(dev->subordinate) > 0)) {
dbg("found PCI-to-PCI bridge at PCI %s\n", pci_name(dev));
add_p2p_bridge(handle, dev);
}
}
/* check if this bridge has ejectable slots */
- if (detect_ejectable_slots(handle) > 0) {
+ if (detect_ejectable_slots(pci_bus) > 0) {
dbg("found PCI host-bus bridge with hot-pluggable slots\n");
add_host_bridge(handle, pci_bus);
}
projects / linux-2.6-omap-h63xx.git / blobdiff