#include <acpi/acpi_drivers.h>
#define _COMPONENT ACPI_PCI_COMPONENT
-ACPI_MODULE_NAME("pci_root")
+ACPI_MODULE_NAME("pci_root");
#define ACPI_PCI_ROOT_CLASS "pci_bridge"
-#define ACPI_PCI_ROOT_HID "PNP0A03"
-#define ACPI_PCI_ROOT_DRIVER_NAME "ACPI PCI Root Bridge Driver"
#define ACPI_PCI_ROOT_DEVICE_NAME "PCI Root Bridge"
static int acpi_pci_root_add(struct acpi_device *device);
static int acpi_pci_root_remove(struct acpi_device *device, int type);
static int acpi_pci_root_start(struct acpi_device *device);
+static struct acpi_device_id root_device_ids[] = {
+ {"PNP0A03", 0},
+ {"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, root_device_ids);
+
static struct acpi_driver acpi_pci_root_driver = {
- .name = ACPI_PCI_ROOT_DRIVER_NAME,
+ .name = "pci_root",
.class = ACPI_PCI_ROOT_CLASS,
- .ids = ACPI_PCI_ROOT_HID,
+ .ids = root_device_ids,
.ops = {
.add = acpi_pci_root_add,
.remove = acpi_pci_root_remove,
struct acpi_pci_root {
struct list_head node;
- acpi_handle handle;
+ struct acpi_device * device;
struct acpi_pci_id id;
struct pci_bus *bus;
};
list_for_each(entry, &acpi_pci_roots) {
struct acpi_pci_root *root;
root = list_entry(entry, struct acpi_pci_root, node);
- driver->add(root->handle);
+ driver->add(root->device->handle);
n++;
}
struct acpi_pci_driver **pptr = &sub_driver;
while (*pptr) {
- if (*pptr != driver)
- continue;
- *pptr = (*pptr)->next;
- break;
+ if (*pptr == driver)
+ break;
+ pptr = &(*pptr)->next;
}
+ BUG_ON(!*pptr);
+ *pptr = (*pptr)->next;
if (!driver->remove)
return;
list_for_each(entry, &acpi_pci_roots) {
struct acpi_pci_root *root;
root = list_entry(entry, struct acpi_pci_root, node);
- driver->remove(root->handle);
+ driver->remove(root->device->handle);
}
}
EXPORT_SYMBOL(acpi_pci_unregister_driver);
+acpi_handle acpi_get_pci_rootbridge_handle(unsigned int seg, unsigned int bus)
+{
+ struct acpi_pci_root *tmp;
+
+ list_for_each_entry(tmp, &acpi_pci_roots, node) {
+ if ((tmp->id.segment == (u16) seg) && (tmp->id.bus == (u16) bus))
+ return tmp->device->handle;
+ }
+ return NULL;
+}
+
+EXPORT_SYMBOL_GPL(acpi_get_pci_rootbridge_handle);
+
static acpi_status
get_root_bridge_busnr_callback(struct acpi_resource *resource, void *data)
{
- int *busnr = (int *)data;
+ int *busnr = data;
struct acpi_resource_address64 address;
- if (resource->type != ACPI_RSTYPE_ADDRESS16 &&
- resource->type != ACPI_RSTYPE_ADDRESS32 &&
- resource->type != ACPI_RSTYPE_ADDRESS64)
+ 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.min_address_range;
+ *busnr = address.minimum;
return AE_OK;
}
return AE_OK;
}
+static void acpi_pci_bridge_scan(struct acpi_device *device)
+{
+ int status;
+ struct acpi_device *child = NULL;
+
+ if (device->flags.bus_address)
+ if (device->parent && device->parent->ops.bind) {
+ status = device->parent->ops.bind(device);
+ if (!status) {
+ list_for_each_entry(child, &device->children, node)
+ acpi_pci_bridge_scan(child);
+ }
+ }
+}
+
static int acpi_pci_root_add(struct acpi_device *device)
{
int result = 0;
acpi_status status = AE_OK;
unsigned long value = 0;
acpi_handle handle = NULL;
+ struct acpi_device *child;
- ACPI_FUNCTION_TRACE("acpi_pci_root_add");
if (!device)
- return_VALUE(-EINVAL);
+ return -EINVAL;
- root = kmalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
+ root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
if (!root)
- return_VALUE(-ENOMEM);
- memset(root, 0, sizeof(struct acpi_pci_root));
+ return -ENOMEM;
INIT_LIST_HEAD(&root->node);
- root->handle = device->handle;
+ root->device = device;
strcpy(acpi_device_name(device), ACPI_PCI_ROOT_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_PCI_ROOT_CLASS);
acpi_driver_data(device) = root;
- /*
- * TBD: Doesn't the bus driver automatically set this?
- */
device->ops.bind = acpi_pci_bind;
/*
* -------
* Obtained via _SEG, if exists, otherwise assumed to be zero (0).
*/
- status = acpi_evaluate_integer(root->handle, METHOD_NAME__SEG, NULL,
+ status = acpi_evaluate_integer(device->handle, METHOD_NAME__SEG, NULL,
&value);
switch (status) {
case AE_OK:
root->id.segment = 0;
break;
default:
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error evaluating _SEG\n"));
+ ACPI_EXCEPTION((AE_INFO, status, "Evaluating _SEG"));
result = -ENODEV;
goto end;
}
* ---
* Obtained via _BBN, if exists, otherwise assumed to be zero (0).
*/
- status = acpi_evaluate_integer(root->handle, METHOD_NAME__BBN, NULL,
+ status = acpi_evaluate_integer(device->handle, METHOD_NAME__BBN, NULL,
&value);
switch (status) {
case AE_OK:
root->id.bus = 0;
break;
default:
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error evaluating _BBN\n"));
+ ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BBN"));
result = -ENODEV;
goto end;
}
int bus = 0;
acpi_status status;
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Wrong _BBN value, please reboot and using option 'pci=noacpi'\n"));
+ printk(KERN_ERR PREFIX
+ "Wrong _BBN value, reboot"
+ " and use option 'pci=noacpi'\n");
- status = try_get_root_bridge_busnr(root->handle, &bus);
+ status = try_get_root_bridge_busnr(device->handle, &bus);
if (ACPI_FAILURE(status))
break;
if (bus != root->id.bus) {
*/
root->bus = pci_acpi_scan_root(device, root->id.segment, root->id.bus);
if (!root->bus) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Bus %04x:%02x not present in PCI namespace\n",
- root->id.segment, root->id.bus));
+ printk(KERN_ERR PREFIX
+ "Bus %04x:%02x not present in PCI namespace\n",
+ root->id.segment, root->id.bus);
result = -ENODEV;
goto end;
}
* -----------------
* Evaluate and parse _PRT, if exists.
*/
- status = acpi_get_handle(root->handle, METHOD_NAME__PRT, &handle);
+ status = acpi_get_handle(device->handle, METHOD_NAME__PRT, &handle);
if (ACPI_SUCCESS(status))
- result = acpi_pci_irq_add_prt(root->handle, root->id.segment,
+ result = acpi_pci_irq_add_prt(device->handle, root->id.segment,
root->id.bus);
+ /*
+ * Scan and bind all _ADR-Based Devices
+ */
+ list_for_each_entry(child, &device->children, node)
+ acpi_pci_bridge_scan(child);
+
end:
if (result) {
if (!list_empty(&root->node))
kfree(root);
}
- return_VALUE(result);
+ return result;
}
static int acpi_pci_root_start(struct acpi_device *device)
{
struct acpi_pci_root *root;
- ACPI_FUNCTION_TRACE("acpi_pci_root_start");
list_for_each_entry(root, &acpi_pci_roots, node) {
- if (root->handle == device->handle) {
+ if (root->device == device) {
pci_bus_add_devices(root->bus);
- return_VALUE(0);
+ return 0;
}
}
- return_VALUE(-ENODEV);
+ return -ENODEV;
}
static int acpi_pci_root_remove(struct acpi_device *device, int type)
{
struct acpi_pci_root *root = NULL;
- ACPI_FUNCTION_TRACE("acpi_pci_root_remove");
if (!device || !acpi_driver_data(device))
- return_VALUE(-EINVAL);
+ return -EINVAL;
- root = (struct acpi_pci_root *)acpi_driver_data(device);
+ root = acpi_driver_data(device);
kfree(root);
- return_VALUE(0);
+ return 0;
}
static int __init acpi_pci_root_init(void)
{
- ACPI_FUNCTION_TRACE("acpi_pci_root_init");
if (acpi_pci_disabled)
- return_VALUE(0);
+ return 0;
/* DEBUG:
acpi_dbg_layer = ACPI_PCI_COMPONENT;
*/
if (acpi_bus_register_driver(&acpi_pci_root_driver) < 0)
- return_VALUE(-ENODEV);
+ return -ENODEV;
- return_VALUE(0);
+ return 0;
}
subsys_initcall(acpi_pci_root_init);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff