Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/acpi/pci_bind.c b/drivers/acpi/pci_bind.c
new file mode 100644
index 0000000..5d19b39
--- /dev/null
+++ b/drivers/acpi/pci_bind.c
@@ -0,0 +1,384 @@
+/*
+ * pci_bind.c - ACPI PCI Device Binding ($Revision: 2 $)
+ *
+ * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
+ * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/proc_fs.h>
+#include <linux/spinlock.h>
+#include <linux/pm.h>
+#include <linux/pci.h>
+#include <linux/acpi.h>
+#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
+
+
+#define _COMPONENT ACPI_PCI_COMPONENT
+ACPI_MODULE_NAME ("pci_bind")
+
+struct acpi_pci_data {
+ 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)
+{
+ ACPI_FUNCTION_TRACE("acpi_pci_data_handler");
+
+ /* TBD: Anything we need to do here? */
+
+ return_VOID;
+}
+
+
+/**
+ * acpi_os_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)
+{
+ 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");
+
+ 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)));
+ 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)));
+ 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;
+ */
+
+ 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)
+{
+ 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;
+
+ ACPI_FUNCTION_TRACE("acpi_pci_bind");
+
+ if (!device || !device->parent)
+ return_VALUE(-EINVAL);
+
+ pathname = kmalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
+ 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);
+ 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));
+
+ /*
+ * 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);
+ 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)));
+ result = -ENODEV;
+ goto end;
+ }
+ data->id.segment = pdata->id.segment;
+ data->id.bus = pdata->bus->number;
+
+ /*
+ * Device & Function
+ * -----------------
+ * These are simply obtained from the device's _ADR method. Note
+ * that a value of zero is valid.
+ */
+ data->id.device = device->pnp.bus_address >> 16;
+ 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));
+
+ /*
+ * TBD: Support slot devices (e.g. function=0xFFFF).
+ */
+
+ /*
+ * Locate PCI Device
+ * -----------------
+ * 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.).
+ */
+ data->dev = pci_find_slot(data->id.bus, PCI_DEVFN(data->id.device, data->id.function));
+ 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));
+ 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));
+ result = -ENODEV;
+ goto end;
+ }
+
+ /*
+ * PCI Bridge?
+ * -----------
+ * If so, set the 'bus' field and install the 'bind' function to
+ * 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));
+ data->bus = data->dev->subordinate;
+ device->ops.bind = acpi_pci_bind;
+ device->ops.unbind = acpi_pci_unbind;
+ }
+
+ /*
+ * Attach ACPI-PCI Context
+ * -----------------------
+ * Thus binding the ACPI and PCI devices.
+ */
+ 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)));
+ result = -ENODEV;
+ goto end;
+ }
+
+ /*
+ * PCI Routing Table
+ * -----------------
+ * Evaluate and parse _PRT, if exists. This code is independent of
+ * PCI bridges (above) to allow parsing of _PRT objects within the
+ * scope of non-bridge devices. Note that _PRTs within the scope of
+ * a PCI bridge assume the bridge's subordinate bus number.
+ *
+ * TBD: Can _PRTs exist within the scope of non-bridge PCI devices?
+ */
+ 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 */
+ acpi_pci_irq_add_prt(device->handle, data->id.segment,
+ data->id.bus);
+ }
+
+end:
+ kfree(pathname);
+ if (result)
+ kfree(data);
+
+ return_VALUE(result);
+}
+
+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};
+
+ ACPI_FUNCTION_TRACE("acpi_pci_unbind");
+
+ if (!device || !device->parent)
+ return_VALUE(-EINVAL);
+
+ pathname = (char *) kmalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
+ if(!pathname)
+ return_VALUE(-ENOMEM);
+ memset(pathname, 0, ACPI_PATHNAME_MAX);
+
+ buffer.length = 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));
+ kfree(pathname);
+
+ 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)));
+ 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)));
+ result = -ENODEV;
+ goto end;
+ }
+ if (data->dev->subordinate) {
+ acpi_pci_irq_del_prt(data->id.segment, data->bus->number);
+ }
+ kfree(data);
+
+end:
+ return_VALUE(result);
+}
+
+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};
+
+ ACPI_FUNCTION_TRACE("acpi_pci_bind_root");
+
+ pathname = (char *)kmalloc(ACPI_PATHNAME_MAX, GFP_KERNEL);
+ if(!pathname)
+ return_VALUE(-ENOMEM);
+ memset(pathname, 0, ACPI_PATHNAME_MAX);
+
+ buffer.length = ACPI_PATHNAME_MAX;
+ buffer.pointer = pathname;
+
+ if (!device || !id || !bus){
+ kfree(pathname);
+ return_VALUE(-EINVAL);
+ }
+
+ data = kmalloc(sizeof(struct acpi_pci_data), GFP_KERNEL);
+ if (!data){
+ kfree(pathname);
+ return_VALUE(-ENOMEM);
+ }
+ memset(data, 0, sizeof(struct acpi_pci_data));
+
+ data->id = *id;
+ data->bus = bus;
+ device->ops.bind = acpi_pci_bind;
+ device->ops.unbind = acpi_pci_unbind;
+
+ 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));
+
+ 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));
+ result = -ENODEV;
+ goto end;
+ }
+
+end:
+ kfree(pathname);
+ if (result != 0)
+ kfree(data);
+
+ return_VALUE(result);
+}