This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / drivers / pci / pcie / portdrv_bus.c

diff --git a/drivers/pci/pcie/portdrv_bus.c b/drivers/pci/pcie/portdrv_bus.c
new file mode 100644 (file)
index 0000000..9a02f28
--- /dev/null
+++ b/drivers/pci/pcie/portdrv_bus.c
@@ -0,0 +1,77 @@
+/*
+ * File:       portdrv_bus.c
+ * Purpose:    PCI Express Port Bus Driver's Bus Overloading Functions
+ *
+ * Copyright (C) 2004 Intel
+ * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
+ */
+
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/pm.h>
+
+#include <linux/pcieport_if.h>
+
+static int pcie_port_bus_match(struct device *dev, struct device_driver *drv);
+static int pcie_port_bus_suspend(struct device *dev, u32 state);
+static int pcie_port_bus_resume(struct device *dev);
+
+struct bus_type pcie_port_bus_type = {
+       .name           = "pci_express",
+       .match          = pcie_port_bus_match,
+       .suspend        = pcie_port_bus_suspend,
+       .resume         = pcie_port_bus_resume, 
+};
+
+static int pcie_port_bus_match(struct device *dev, struct device_driver *drv)
+{
+       struct pcie_device *pciedev;
+       struct pcie_port_service_driver *driver;
+
+       if (drv->bus != &pcie_port_bus_type || dev->bus != &pcie_port_bus_type)
+               return 0;
+       
+       pciedev = to_pcie_device(dev);
+       driver = to_service_driver(drv);
+       if (   (driver->id_table->vendor != PCI_ANY_ID && 
+               driver->id_table->vendor != pciedev->id.vendor) ||
+              (driver->id_table->device != PCI_ANY_ID &&
+               driver->id_table->device != pciedev->id.device) ||      
+               driver->id_table->port_type != pciedev->id.port_type ||
+               driver->id_table->service_type != pciedev->id.service_type )
+               return 0;
+
+       return 1;
+}
+
+static int pcie_port_bus_suspend(struct device *dev, u32 state)
+{
+       struct pcie_device *pciedev;
+       struct pcie_port_service_driver *driver;
+
+       if (!dev || !dev->driver)
+               return 0;
+
+       pciedev = to_pcie_device(dev);
+       driver = to_service_driver(dev->driver);
+       if (driver && driver->suspend)
+               driver->suspend(pciedev, state);
+       return 0;
+}
+
+static int pcie_port_bus_resume(struct device *dev)
+{
+       struct pcie_device *pciedev;
+       struct pcie_port_service_driver *driver;
+
+       if (!dev || !dev->driver)
+               return 0;
+
+       pciedev = to_pcie_device(dev);
+       driver = to_service_driver(dev->driver);
+       if (driver && driver->resume)
+               driver->resume(pciedev);
+       return 0;
+}