1 files changed, 122 insertions, 0 deletions

diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
new file mode 100644
index 000000000000..3184843c3649
--- /dev/null
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -0,0 +1,122 @@
+/*
+ * File:        portdrv_pci.c
+ * Purpose:     PCI Express Port Bus Driver
+ *
+ * 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/init.h>
+#include <linux/pcieport_if.h>
+
+#include "portdrv.h"
+
+/*
+ * Version Information
+ */
+#define DRIVER_VERSION "v1.0"
+#define DRIVER_AUTHOR "tom.l.nguyen@intel.com"
+#define DRIVER_DESC "PCIE Port Bus Driver"
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+
+/* global data */
+static const char device_name[] = "pcieport-driver";
+
+/*
+ * pcie_portdrv_probe - Probe PCI-Express port devices
+ * @dev: PCI-Express port device being probed
+ *
+ * If detected invokes the pcie_port_device_register() method for 
+ * this port device.
+ *
+ */
+static int __devinit pcie_portdrv_probe (struct pci_dev *dev, 
+                                const struct pci_device_id *id )
+{
+        int                     status;
+
+        status = pcie_port_device_probe(dev);
+        if (status)
+                return status;
+
+        if (pci_enable_device(dev) < 0) 
+                return -ENODEV;
+        
+        pci_set_master(dev);
+        if (!dev->irq) {
+                printk(KERN_WARNING 
+                "%s->Dev[%04x:%04x] has invalid IRQ. Check vendor BIOS\n", 
+                __FUNCTION__, dev->device, dev->vendor);
+        }
+        if (pcie_port_device_register(dev)) 
+                return -ENOMEM;
+
+        return 0;
+}
+
+static void pcie_portdrv_remove (struct pci_dev *dev)
+{
+        pcie_port_device_remove(dev);
+}
+
+#ifdef CONFIG_PM
+static int pcie_portdrv_suspend (struct pci_dev *dev, u32 state)
+{
+        return pcie_port_device_suspend(dev, state);
+}
+
+static int pcie_portdrv_resume (struct pci_dev *dev)
+{
+        return pcie_port_device_resume(dev);
+}
+#endif
+
+/*
+ * LINUX Device Driver Model
+ */
+static const struct pci_device_id port_pci_ids[] = { {
+        /* handle any PCI-Express port */
+        PCI_DEVICE_CLASS(((PCI_CLASS_BRIDGE_PCI << 8) | 0x00), ~0),
+        }, { /* end: all zeroes */ }
+};
+MODULE_DEVICE_TABLE(pci, port_pci_ids);
+
+static struct pci_driver pcie_portdrv = {
+        .name           = (char *)device_name,
+        .id_table       = &port_pci_ids[0],
+
+        .probe          = pcie_portdrv_probe,
+        .remove         = pcie_portdrv_remove,
+
+#ifdef  CONFIG_PM
+        .suspend        = pcie_portdrv_suspend,
+        .resume         = pcie_portdrv_resume,
+#endif  /* PM */
+};
+
+static int __init pcie_portdrv_init(void)
+{
+        int retval = 0;
+
+        pcie_port_bus_register();
+        retval = pci_register_driver(&pcie_portdrv);
+        if (retval)
+                pcie_port_bus_unregister();
+        return retval;
+}
+
+static void __exit pcie_portdrv_exit(void) 
+{
+        pci_unregister_driver(&pcie_portdrv);
+        pcie_port_bus_unregister();
+}
+
+module_init(pcie_portdrv_init);
+module_exit(pcie_portdrv_exit);