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 = STATUS_SUCCESS;
  18
  19         PUSBMP_DEVICE_EXTENSION DeviceExtension = (PUSBMP_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
  20
  21         /* Create generic linux structure */
  22         struct pci_dev *dev;
  23         dev = ExAllocatePoolWithTag(PagedPool, sizeof(struct pci_dev), USB_UHCI_TAG);
  24         DeviceExtension->pdev = dev;
  25
  26         /* Initialize generic linux structure */
  27         dev->irq = DeviceExtension->InterruptVector;
  28         dev->dev_ext = (PVOID)DeviceExtension;
  29         dev->dev.dev_ext = (PVOID)DeviceExtension;
  30         dev->slot_name = ExAllocatePoolWithTag(NonPagedPool, 128, USB_UHCI_TAG); // 128 max len for slot name
  31         init_wrapper(dev);
  32
  33         strcpy(dev->dev.name, "UnivHCI PCI-USB Controller");
  34         strcpy(dev->slot_name, "UHCD PCI Slot");
  35
  36         /* Init the HCD. Probe will be called automatically, but will fail because id=NULL */
  37         Status = uhci_hcd_init();
  38         if (!NT_SUCCESS(Status))
  39         {
  40                 DPRINT("UHCI: uhci_hcd_init() failed with status 0x%08lx\n", Status);
  41                 /* FIXME: deinitialize linux wrapper */
  42                 ExFreePoolWithTag(dev, USB_UHCI_TAG);
  43                 return Status;
  44         }
  45
  46         /* Init core usb */
  47         usb_init();
  48
  49         /* Probe device with real id now */
  50         uhci_pci_driver.probe(dev, uhci_pci_ids);
  51
  52         return Status;
  53 }
  54
  55 VOID STDCALL
  56 DriverUnload(PDRIVER_OBJECT DriverObject)
  57 {
  58         PUSBMP_DEVICE_EXTENSION DeviceExtension;
  59         PDEVICE_OBJECT DeviceObject;
  60         struct pci_dev *dev;
  61
  62         DeviceObject = DriverObject->DeviceObject;
  63         DeviceExtension = (PUSBMP_DEVICE_EXTENSION)DeviceObject->DeviceExtension;
  64
  65         dev = DeviceExtension->pdev;
  66
  67         DPRINT1("UHCI: DriverUnload()\n");
  68
  69         // Exit usb device
  70         usb_exit();
  71
  72         // Remove device (uhci_pci_driver.remove)
  73         uhci_pci_driver.remove(dev);
  74
  75         ExFreePool(dev->slot_name);
  76         ExFreePool(dev);
  77
  78         // Perform some cleanup
  79         uhci_hcd_cleanup();
  80 }