reactos/drivers/usb/miniport/usbuhci/uhci.c

   1 /*
   2    ReactOS specific functions for UHCI module
   3    by Aleksey Bragin (aleksey@reactos.com)
   4    and Hervé Poussineau (hpoussin@reactos.org)
   5    Some parts of code are inspired (or even just copied) from ReactOS Videoport driver
   6 */
   7 #define NDEBUG
   8 #include "uhci.h"
   9
  10 extern struct pci_driver uhci_pci_driver;
  11 extern struct pci_device_id uhci_pci_ids[];
  12 struct pci_device_id* pci_ids = &uhci_pci_ids[0];
  13
  14 NTSTATUS
  15 InitLinuxWrapper(PDEVICE_OBJECT DeviceObject)
  16 {
  17         NTSTATUS Status;
  18         PUSBMP_DEVICE_EXTENSION DeviceExtension = (PUSBMP_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
  19
  20         /* Create generic linux structure */
  21         struct pci_dev *dev;
  22         dev = ExAllocatePoolWithTag(PagedPool, sizeof(struct pci_dev), USB_UHCI_TAG);
  23         DeviceExtension->pdev = dev;
  24
  25         /* Initialize generic linux structure */
  26         dev->irq = DeviceExtension->InterruptVector;
  27         dev->dev_ext = (PVOID)DeviceExtension;
  28         dev->dev.dev_ext = DeviceObject;
  29         dev->slot_name = ExAllocatePoolWithTag(NonPagedPool, 128, USB_UHCI_TAG); // 128 max len for slot name
  30
  31         /* Init wrapper */
  32         init_wrapper(dev);
  33
  34         strcpy(dev->dev.name, "UnivHCI PCI-USB Controller");
  35         strcpy(dev->slot_name, "UHCD PCI Slot");
  36
  37         /* Init the HCD. Probe will be called automatically, but will fail because id=NULL */
  38         Status = uhci_hcd_init();
  39         if (!NT_SUCCESS(Status))
  40         {
  41                 DPRINT("UHCI: uhci_hcd_init() failed with status 0x%08lx\n", Status);
  42                 /* FIXME: deinitialize linux wrapper */
  43                 ExFreePoolWithTag(dev, USB_UHCI_TAG);
  44                 return Status;
  45         }
  46
  47         /* Init core usb */
  48         usb_init();
  49
  50         /* Probe device with real id now */
  51         uhci_pci_driver.probe(dev, uhci_pci_ids);
  52
  53         return STATUS_SUCCESS;
  54 }
  55
  56 VOID STDCALL
  57 DriverUnload(PDRIVER_OBJECT DriverObject)
  58 {
  59         PUSBMP_DEVICE_EXTENSION DeviceExtension;
  60         PDEVICE_OBJECT DeviceObject;
  61         struct pci_dev *dev;
  62
  63         DeviceObject = DriverObject->DeviceObject;
  64         DeviceExtension = (PUSBMP_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
  65
  66         dev = DeviceExtension->pdev;
  67
  68         DPRINT1("UHCI: DriverUnload()\n");
  69
  70         // Exit usb device
  71         usb_exit();
  72
  73         // Remove device (uhci_pci_driver.remove)
  74         uhci_pci_driver.remove(dev);
  75
  76         ExFreePool(dev->slot_name);
  77         ExFreePool(dev);
  78
  79         // Perform some cleanup
  80         uhci_hcd_cleanup();
  81 }