#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
-
#define _COMPONENT ACPI_PCI_COMPONENT
-ACPI_MODULE_NAME ("pci_bind")
+ACPI_MODULE_NAME("pci_bind")
struct acpi_pci_data {
- struct acpi_pci_id id;
- struct pci_bus *bus;
- struct pci_dev *dev;
+ struct acpi_pci_id id;
+ struct pci_bus *bus;
+ struct pci_dev *dev;
};
-
-void
-acpi_pci_data_handler (
- acpi_handle handle,
- u32 function,
- void *context)
+static void acpi_pci_data_handler(acpi_handle handle, u32 function,
+ void *context)
{
ACPI_FUNCTION_TRACE("acpi_pci_data_handler");
return_VOID;
}
-
/**
- * acpi_os_get_pci_id
+ * acpi_get_pci_id
* ------------------
* This function is used by the ACPI Interpreter (a.k.a. Core Subsystem)
* to resolve PCI information for ACPI-PCI devices defined in the namespace.
* This typically occurs when resolving PCI operation region information.
*/
-#ifdef ACPI_FUTURE_USAGE
-acpi_status
-acpi_os_get_pci_id (
- acpi_handle handle,
- struct acpi_pci_id *id)
+acpi_status acpi_get_pci_id(acpi_handle handle, struct acpi_pci_id *id)
{
- int result = 0;
- acpi_status status = AE_OK;
- struct acpi_device *device = NULL;
- struct acpi_pci_data *data = NULL;
+ int result = 0;
+ acpi_status status = AE_OK;
+ struct acpi_device *device = NULL;
+ struct acpi_pci_data *data = NULL;
- ACPI_FUNCTION_TRACE("acpi_os_get_pci_id");
+ ACPI_FUNCTION_TRACE("acpi_get_pci_id");
if (!id)
return_ACPI_STATUS(AE_BAD_PARAMETER);
result = acpi_bus_get_device(handle, &device);
if (result) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Invalid ACPI Bus context for device %s\n",
- acpi_device_bid(device)));
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Invalid ACPI Bus context for device %s\n",
+ acpi_device_bid(device)));
return_ACPI_STATUS(AE_NOT_EXIST);
}
- status = acpi_get_data(handle, acpi_pci_data_handler, (void**) &data);
- if (ACPI_FAILURE(status) || !data || !data->dev) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Invalid ACPI-PCI context for device %s\n",
- acpi_device_bid(device)));
+ status = acpi_get_data(handle, acpi_pci_data_handler, (void **)&data);
+ if (ACPI_FAILURE(status) || !data) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Invalid ACPI-PCI context for device %s\n",
+ acpi_device_bid(device)));
return_ACPI_STATUS(status);
}
*id = data->id;
-
+
/*
- id->segment = data->id.segment;
- id->bus = data->id.bus;
- id->device = data->id.device;
- id->function = data->id.function;
- */
+ id->segment = data->id.segment;
+ id->bus = data->id.bus;
+ id->device = data->id.device;
+ id->function = data->id.function;
+ */
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Device %s has PCI address %02x:%02x:%02x.%02x\n",
- acpi_device_bid(device), id->segment, id->bus,
- id->device, id->function));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Device %s has PCI address %02x:%02x:%02x.%02x\n",
+ acpi_device_bid(device), id->segment, id->bus,
+ id->device, id->function));
return_ACPI_STATUS(AE_OK);
}
-#endif /* ACPI_FUTURE_USAGE */
-
-int
-acpi_pci_bind (
- struct acpi_device *device)
+EXPORT_SYMBOL(acpi_get_pci_id);
+
+int acpi_pci_bind(struct acpi_device *device)
{
- int result = 0;
- acpi_status status = AE_OK;
- struct acpi_pci_data *data = NULL;
- struct acpi_pci_data *pdata = NULL;
- char *pathname = NULL;
- struct acpi_buffer buffer = {0, NULL};
- acpi_handle handle = NULL;
+ int result = 0;
+ acpi_status status = AE_OK;
+ struct acpi_pci_data *data = NULL;
+ struct acpi_pci_data *pdata = NULL;
+ char *pathname = NULL;
+ struct acpi_buffer buffer = { 0, NULL };
+ acpi_handle handle = NULL;
+ struct pci_dev *dev;
+ struct pci_bus *bus;
ACPI_FUNCTION_TRACE("acpi_pci_bind");
return_VALUE(-EINVAL);
pathname = kmalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
- if(!pathname)
+ if (!pathname)
return_VALUE(-ENOMEM);
memset(pathname, 0, ACPI_PATHNAME_MAX);
buffer.length = ACPI_PATHNAME_MAX;
buffer.pointer = pathname;
data = kmalloc(sizeof(struct acpi_pci_data), GFP_KERNEL);
- if (!data){
- kfree (pathname);
+ if (!data) {
+ kfree(pathname);
return_VALUE(-ENOMEM);
}
memset(data, 0, sizeof(struct acpi_pci_data));
acpi_get_name(device->handle, ACPI_FULL_PATHNAME, &buffer);
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Binding PCI device [%s]...\n",
- pathname));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Binding PCI device [%s]...\n",
+ pathname));
/*
* Segment & Bus
* -------------
* These are obtained via the parent device's ACPI-PCI context.
*/
- status = acpi_get_data(device->parent->handle, acpi_pci_data_handler,
- (void**) &pdata);
+ status = acpi_get_data(device->parent->handle, acpi_pci_data_handler,
+ (void **)&pdata);
if (ACPI_FAILURE(status) || !pdata || !pdata->bus) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Invalid ACPI-PCI context for parent device %s\n",
- acpi_device_bid(device->parent)));
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Invalid ACPI-PCI context for parent device %s\n",
+ acpi_device_bid(device->parent)));
result = -ENODEV;
goto end;
}
data->id.function = device->pnp.bus_address & 0xFFFF;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "...to %02x:%02x:%02x.%02x\n",
- data->id.segment, data->id.bus, data->id.device,
- data->id.function));
+ data->id.segment, data->id.bus, data->id.device,
+ data->id.function));
/*
* TBD: Support slot devices (e.g. function=0xFFFF).
* Locate matching device in PCI namespace. If it doesn't exist
* this typically means that the device isn't currently inserted
* (e.g. docking station, port replicator, etc.).
+ * We cannot simply search the global pci device list, since
+ * PCI devices are added to the global pci list when the root
+ * bridge start ops are run, which may not have happened yet.
*/
- data->dev = pci_find_slot(data->id.bus, PCI_DEVFN(data->id.device, data->id.function));
+ bus = pci_find_bus(data->id.segment, data->id.bus);
+ if (bus) {
+ list_for_each_entry(dev, &bus->devices, bus_list) {
+ if (dev->devfn == PCI_DEVFN(data->id.device,
+ data->id.function)) {
+ data->dev = dev;
+ break;
+ }
+ }
+ }
if (!data->dev) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Device %02x:%02x:%02x.%02x not present in PCI namespace\n",
- data->id.segment, data->id.bus,
- data->id.device, data->id.function));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Device %02x:%02x:%02x.%02x not present in PCI namespace\n",
+ data->id.segment, data->id.bus,
+ data->id.device, data->id.function));
result = -ENODEV;
goto end;
}
if (!data->dev->bus) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Device %02x:%02x:%02x.%02x has invalid 'bus' field\n",
- data->id.segment, data->id.bus,
- data->id.device, data->id.function));
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Device %02x:%02x:%02x.%02x has invalid 'bus' field\n",
+ data->id.segment, data->id.bus,
+ data->id.device, data->id.function));
result = -ENODEV;
goto end;
}
* facilitate callbacks for all of its children.
*/
if (data->dev->subordinate) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Device %02x:%02x:%02x.%02x is a PCI bridge\n",
- data->id.segment, data->id.bus,
- data->id.device, data->id.function));
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Device %02x:%02x:%02x.%02x is a PCI bridge\n",
+ data->id.segment, data->id.bus,
+ data->id.device, data->id.function));
data->bus = data->dev->subordinate;
device->ops.bind = acpi_pci_bind;
device->ops.unbind = acpi_pci_unbind;
status = acpi_attach_data(device->handle, acpi_pci_data_handler, data);
if (ACPI_FAILURE(status)) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Unable to attach ACPI-PCI context to device %s\n",
- acpi_device_bid(device)));
+ "Unable to attach ACPI-PCI context to device %s\n",
+ acpi_device_bid(device)));
result = -ENODEV;
goto end;
}
*/
status = acpi_get_handle(device->handle, METHOD_NAME__PRT, &handle);
if (ACPI_SUCCESS(status)) {
- if (data->bus) /* PCI-PCI bridge */
- acpi_pci_irq_add_prt(device->handle, data->id.segment,
- data->bus->number);
- else /* non-bridge PCI device */
+ if (data->bus) /* PCI-PCI bridge */
+ acpi_pci_irq_add_prt(device->handle, data->id.segment,
+ data->bus->number);
+ else /* non-bridge PCI device */
acpi_pci_irq_add_prt(device->handle, data->id.segment,
- data->id.bus);
+ data->id.bus);
}
-end:
+ end:
kfree(pathname);
if (result)
kfree(data);
return_VALUE(result);
}
-int acpi_pci_unbind(
- struct acpi_device *device)
+int acpi_pci_unbind(struct acpi_device *device)
{
- int result = 0;
- acpi_status status = AE_OK;
- struct acpi_pci_data *data = NULL;
- char *pathname = NULL;
- struct acpi_buffer buffer = {0, NULL};
+ int result = 0;
+ acpi_status status = AE_OK;
+ struct acpi_pci_data *data = NULL;
+ char *pathname = NULL;
+ struct acpi_buffer buffer = { 0, NULL };
ACPI_FUNCTION_TRACE("acpi_pci_unbind");
if (!device || !device->parent)
return_VALUE(-EINVAL);
- pathname = (char *) kmalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
- if(!pathname)
+ pathname = (char *)kmalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
+ if (!pathname)
return_VALUE(-ENOMEM);
memset(pathname, 0, ACPI_PATHNAME_MAX);
buffer.pointer = pathname;
acpi_get_name(device->handle, ACPI_FULL_PATHNAME, &buffer);
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Unbinding PCI device [%s]...\n",
- pathname));
+ pathname));
kfree(pathname);
- status = acpi_get_data(device->handle, acpi_pci_data_handler, (void**)&data);
+ status =
+ acpi_get_data(device->handle, acpi_pci_data_handler,
+ (void **)&data);
if (ACPI_FAILURE(status)) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Unable to get data from device %s\n",
- acpi_device_bid(device)));
+ "Unable to get data from device %s\n",
+ acpi_device_bid(device)));
result = -ENODEV;
goto end;
}
status = acpi_detach_data(device->handle, acpi_pci_data_handler);
if (ACPI_FAILURE(status)) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Unable to detach data from device %s\n",
- acpi_device_bid(device)));
+ "Unable to detach data from device %s\n",
+ acpi_device_bid(device)));
result = -ENODEV;
goto end;
}
}
kfree(data);
-end:
+ end:
return_VALUE(result);
}
-int
-acpi_pci_bind_root (
- struct acpi_device *device,
- struct acpi_pci_id *id,
- struct pci_bus *bus)
+int
+acpi_pci_bind_root(struct acpi_device *device,
+ struct acpi_pci_id *id, struct pci_bus *bus)
{
- int result = 0;
- acpi_status status = AE_OK;
- struct acpi_pci_data *data = NULL;
- char *pathname = NULL;
- struct acpi_buffer buffer = {0, NULL};
+ int result = 0;
+ acpi_status status = AE_OK;
+ struct acpi_pci_data *data = NULL;
+ char *pathname = NULL;
+ struct acpi_buffer buffer = { 0, NULL };
ACPI_FUNCTION_TRACE("acpi_pci_bind_root");
pathname = (char *)kmalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
- if(!pathname)
+ if (!pathname)
return_VALUE(-ENOMEM);
memset(pathname, 0, ACPI_PATHNAME_MAX);
buffer.length = ACPI_PATHNAME_MAX;
buffer.pointer = pathname;
- if (!device || !id || !bus){
+ if (!device || !id || !bus) {
kfree(pathname);
return_VALUE(-EINVAL);
}
data = kmalloc(sizeof(struct acpi_pci_data), GFP_KERNEL);
- if (!data){
+ if (!data) {
kfree(pathname);
return_VALUE(-ENOMEM);
}
acpi_get_name(device->handle, ACPI_FULL_PATHNAME, &buffer);
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Binding PCI root bridge [%s] to "
- "%02x:%02x\n", pathname, id->segment, id->bus));
+ "%02x:%02x\n", pathname, id->segment, id->bus));
status = acpi_attach_data(device->handle, acpi_pci_data_handler, data);
if (ACPI_FAILURE(status)) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Unable to attach ACPI-PCI context to device %s\n",
- pathname));
+ "Unable to attach ACPI-PCI context to device %s\n",
+ pathname));
result = -ENODEV;
goto end;
}
-end:
+ end:
kfree(pathname);
if (result != 0)
kfree(data);
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