return ret;
}
-/* Get PCI root bridge's handle from its segment and bus number */
-struct acpi_find_pci_root {
- unsigned int seg;
- unsigned int bus;
- acpi_handle handle;
-};
-
-static acpi_status
-do_root_bridge_busnr_callback(struct acpi_resource *resource, void *data)
-{
- unsigned long *busnr = (unsigned long *)data;
- struct acpi_resource_address64 address;
-
- if (resource->type != ACPI_RESOURCE_TYPE_ADDRESS16 &&
- resource->type != ACPI_RESOURCE_TYPE_ADDRESS32 &&
- resource->type != ACPI_RESOURCE_TYPE_ADDRESS64)
- return AE_OK;
-
- acpi_resource_to_address64(resource, &address);
- if ((address.address_length > 0) &&
- (address.resource_type == ACPI_BUS_NUMBER_RANGE))
- *busnr = address.minimum;
-
- return AE_OK;
-}
-
-static int get_root_bridge_busnr(acpi_handle handle)
-{
- acpi_status status;
- unsigned long bus, bbn;
- struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
-
- acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
-
- status = acpi_evaluate_integer(handle, METHOD_NAME__BBN, NULL,
- &bbn);
- if (status == AE_NOT_FOUND) {
- /* Assume bus = 0 */
- printk(KERN_INFO PREFIX
- "Assume root bridge [%s] bus is 0\n",
- (char *)buffer.pointer);
- status = AE_OK;
- bbn = 0;
- }
- if (ACPI_FAILURE(status)) {
- bbn = -ENODEV;
- goto exit;
- }
- if (bbn > 0)
- goto exit;
-
- /* _BBN in some systems return 0 for all root bridges */
- bus = -1;
- status = acpi_walk_resources(handle, METHOD_NAME__CRS,
- do_root_bridge_busnr_callback, &bus);
- /* If _CRS failed, we just use _BBN */
- if (ACPI_FAILURE(status) || (bus == -1))
- goto exit;
- /* We select _CRS */
- if (bbn != bus) {
- printk(KERN_INFO PREFIX
- "_BBN and _CRS returns different value for %s. Select _CRS\n",
- (char *)buffer.pointer);
- bbn = bus;
- }
- exit:
- kfree(buffer.pointer);
- return (int)bbn;
-}
-
-static acpi_status
-find_pci_rootbridge(acpi_handle handle, u32 lvl, void *context, void **rv)
-{
- struct acpi_find_pci_root *find = (struct acpi_find_pci_root *)context;
- unsigned long seg, bus;
- acpi_status status;
- int tmp;
- struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
-
- acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
-
- status = acpi_evaluate_integer(handle, METHOD_NAME__SEG, NULL, &seg);
- if (status == AE_NOT_FOUND) {
- /* Assume seg = 0 */
- status = AE_OK;
- seg = 0;
- }
- if (ACPI_FAILURE(status)) {
- status = AE_CTRL_DEPTH;
- goto exit;
- }
-
- tmp = get_root_bridge_busnr(handle);
- if (tmp < 0) {
- printk(KERN_ERR PREFIX
- "Find root bridge failed for %s\n",
- (char *)buffer.pointer);
- status = AE_CTRL_DEPTH;
- goto exit;
- }
- bus = tmp;
-
- if (seg == find->seg && bus == find->bus)
- find->handle = handle;
- status = AE_OK;
- exit:
- kfree(buffer.pointer);
- return status;
-}
-
-acpi_handle acpi_get_pci_rootbridge_handle(unsigned int seg, unsigned int bus)
-{
- struct acpi_find_pci_root find = { seg, bus, NULL };
-
- acpi_get_devices(PCI_ROOT_HID_STRING, find_pci_rootbridge, &find, NULL);
- return find.handle;
-}
-EXPORT_SYMBOL_GPL(acpi_get_pci_rootbridge_handle);
-
/* Get device's handler per its address under its parent */
struct acpi_find_child {
acpi_handle handle;
acpi_status status;
struct acpi_device_info *info;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- struct acpi_find_child *find = (struct acpi_find_child *)context;
+ struct acpi_find_child *find = context;
status = acpi_get_object_info(handle, &buffer);
if (ACPI_SUCCESS(status)) {
{
acpi_status status;
- if (dev->firmware_data) {
+ if (dev->archdata.acpi_handle) {
printk(KERN_WARNING PREFIX
- "Drivers changed 'firmware_data' for %s\n", dev->bus_id);
+ "Drivers changed 'acpi_handle' for %s\n", dev->bus_id);
return -EINVAL;
}
get_device(dev);
put_device(dev);
return -EINVAL;
}
- dev->firmware_data = handle;
+ dev->archdata.acpi_handle = handle;
return 0;
}
static int acpi_unbind_one(struct device *dev)
{
- if (!dev->firmware_data)
+ if (!dev->archdata.acpi_handle)
return 0;
- if (dev == acpi_get_physical_device(dev->firmware_data)) {
+ if (dev == acpi_get_physical_device(dev->archdata.acpi_handle)) {
/* acpi_get_physical_device increase refcnt by one */
put_device(dev);
- acpi_detach_data(dev->firmware_data, acpi_glue_data_handler);
- dev->firmware_data = NULL;
+ acpi_detach_data(dev->archdata.acpi_handle,
+ acpi_glue_data_handler);
+ dev->archdata.acpi_handle = NULL;
/* acpi_bind_one increase refcnt by one */
put_device(dev);
} else {
printk(KERN_ERR PREFIX
- "Oops, 'firmware_data' corrupt for %s\n", dev->bus_id);
+ "Oops, 'acpi_handle' corrupt for %s\n", dev->bus_id);
}
return 0;
}
if (!ret) {
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- acpi_get_name(dev->firmware_data, ACPI_FULL_PATHNAME, &buffer);
+ acpi_get_name(dev->archdata.acpi_handle,
+ ACPI_FULL_PATHNAME, &buffer);
DBG("Device %s -> %s\n", dev->bus_id, (char *)buffer.pointer);
kfree(buffer.pointer);
} else
git.openpandora.org / pandora-kernel.git / blobdiff