diff options
Diffstat (limited to 'PcAtChipsetPkg/IsaAcpiDxe/PcatIsaAcpi.c')
| -rw-r--r-- | PcAtChipsetPkg/IsaAcpiDxe/PcatIsaAcpi.c | 329 |
1 files changed, 329 insertions, 0 deletions
diff --git a/PcAtChipsetPkg/IsaAcpiDxe/PcatIsaAcpi.c b/PcAtChipsetPkg/IsaAcpiDxe/PcatIsaAcpi.c new file mode 100644 index 0000000000..a0f4cdfd40 --- /dev/null +++ b/PcAtChipsetPkg/IsaAcpiDxe/PcatIsaAcpi.c @@ -0,0 +1,329 @@ +/*++
+
+Copyright (c) 2006, Intel Corporation
+All rights reserved. This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+
+Module Name:
+
+ PcatIsaAcpi.c
+
+Abstract:
+
+ EFI PCAT ISA ACPI Driver for a Generic PC Platform
+
+Revision History
+
+--*/
+
+#include "PcatIsaAcpi.h"
+
+//
+// PcatIsaAcpi Driver Binding Protocol
+//
+EFI_DRIVER_BINDING_PROTOCOL gPcatIsaAcpiDriverBinding = {
+ PcatIsaAcpiDriverBindingSupported,
+ PcatIsaAcpiDriverBindingStart,
+ PcatIsaAcpiDriverBindingStop,
+ 0xa,
+ NULL,
+ NULL
+};
+
+EFI_STATUS
+EFIAPI
+PcatIsaAcpiDriverEntryPoint (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+/*++
+
+ Routine Description:
+ the entry point of the PcatIsaAcpi driver
+
+ Arguments:
+
+ Returns:
+
+--*/
+{
+ return EfiLibInstallDriverBindingComponentName2 (
+ ImageHandle,
+ SystemTable,
+ &gPcatIsaAcpiDriverBinding,
+ ImageHandle,
+ &gPcatIsaAcpiComponentName,
+ &gPcatIsaAcpiComponentName2
+ );
+}
+
+EFI_STATUS
+EFIAPI
+PcatIsaAcpiDriverBindingSupported (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ )
+/*++
+
+Routine Description:
+
+ ControllerDriver Protocol Method
+
+Arguments:
+
+Returns:
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_PCI_IO_PROTOCOL *PciIo;
+ PCI_TYPE00 Pci;
+
+ //
+ // Get PciIo protocol instance
+ //
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ (VOID**)&PciIo,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+ if (EFI_ERROR(Status)) {
+ return Status;
+ }
+
+ Status = PciIo->Pci.Read (
+ PciIo,
+ EfiPciIoWidthUint32,
+ 0,
+ sizeof(Pci) / sizeof(UINT32),
+ &Pci);
+
+ if (!EFI_ERROR (Status)) {
+ Status = EFI_UNSUPPORTED;
+ if ((Pci.Hdr.Command & 0x03) == 0x03) {
+ if (Pci.Hdr.ClassCode[2] == PCI_CLASS_BRIDGE) {
+ //
+ // See if this is a standard PCI to ISA Bridge from the Base Code and Class Code
+ //
+ if (Pci.Hdr.ClassCode[1] == PCI_CLASS_BRIDGE_ISA) {
+ Status = EFI_SUCCESS;
+ }
+
+ //
+ // See if this is an Intel PCI to ISA bridge in Positive Decode Mode
+ //
+ if (Pci.Hdr.ClassCode[1] == PCI_CLASS_BRIDGE_ISA_PDECODE &&
+ Pci.Hdr.VendorId == 0x8086 &&
+ Pci.Hdr.DeviceId == 0x7110) {
+ Status = EFI_SUCCESS;
+ }
+ }
+ }
+ }
+
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+
+ return Status;
+}
+
+EFI_STATUS
+EFIAPI
+PcatIsaAcpiDriverBindingStart (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
+ )
+/*++
+
+Routine Description:
+ Install EFI_ISA_ACPI_PROTOCOL
+
+Arguments:
+
+Returns:
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_PCI_IO_PROTOCOL *PciIo;
+ PCAT_ISA_ACPI_DEV *PcatIsaAcpiDev;
+
+ PcatIsaAcpiDev = NULL;
+ //
+ // Open the PCI I/O Protocol Interface
+ //
+ PciIo = NULL;
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ (VOID**)&PciIo,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_BY_DRIVER
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ Status = PciIo->Attributes (
+ PciIo,
+ EfiPciIoAttributeOperationEnable,
+ EFI_PCI_DEVICE_ENABLE | EFI_PCI_IO_ATTRIBUTE_ISA_IO | EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO,
+ NULL
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // Allocate memory for the PCAT ISA ACPI Device structure
+ //
+ PcatIsaAcpiDev = NULL;
+ Status = gBS->AllocatePool (
+ EfiBootServicesData,
+ sizeof(PCAT_ISA_ACPI_DEV),
+ (VOID**)&PcatIsaAcpiDev
+ );
+ if (EFI_ERROR (Status)) {
+ goto Done;
+ }
+
+ //
+ // Initialize the PCAT ISA ACPI Device structure
+ //
+ PcatIsaAcpiDev->Signature = PCAT_ISA_ACPI_DEV_SIGNATURE;
+ PcatIsaAcpiDev->Handle = Controller;
+ PcatIsaAcpiDev->PciIo = PciIo;
+
+ //
+ // IsaAcpi interface
+ //
+ (PcatIsaAcpiDev->IsaAcpi).DeviceEnumerate = IsaDeviceEnumerate;
+ (PcatIsaAcpiDev->IsaAcpi).SetPower = IsaDeviceSetPower;
+ (PcatIsaAcpiDev->IsaAcpi).GetCurResource = IsaGetCurrentResource;
+ (PcatIsaAcpiDev->IsaAcpi).GetPosResource = IsaGetPossibleResource;
+ (PcatIsaAcpiDev->IsaAcpi).SetResource = IsaSetResource;
+ (PcatIsaAcpiDev->IsaAcpi).EnableDevice = IsaEnableDevice;
+ (PcatIsaAcpiDev->IsaAcpi).InitDevice = IsaInitDevice;
+ (PcatIsaAcpiDev->IsaAcpi).InterfaceInit = IsaInterfaceInit;
+
+ //
+ // Install the ISA ACPI Protocol interface
+ //
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &Controller,
+ &gEfiIsaAcpiProtocolGuid, &PcatIsaAcpiDev->IsaAcpi,
+ NULL
+ );
+
+Done:
+ if (EFI_ERROR (Status)) {
+ if (PciIo) {
+ PciIo->Attributes (
+ PciIo,
+ EfiPciIoAttributeOperationDisable,
+ EFI_PCI_DEVICE_ENABLE | EFI_PCI_IO_ATTRIBUTE_ISA_IO | EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO,
+ NULL
+ );
+ }
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+ if (PcatIsaAcpiDev != NULL) {
+ gBS->FreePool (PcatIsaAcpiDev);
+ }
+ return Status;
+ }
+
+ return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+PcatIsaAcpiDriverBindingStop (
+ IN EFI_DRIVER_BINDING_PROTOCOL *This,
+ IN EFI_HANDLE Controller,
+ IN UINTN NumberOfChildren,
+ IN EFI_HANDLE *ChildHandleBuffer
+ )
+/*++
+
+ Routine Description:
+
+ Arguments:
+
+ Returns:
+
+--*/
+{
+ EFI_STATUS Status;
+ EFI_ISA_ACPI_PROTOCOL *IsaAcpi;
+ PCAT_ISA_ACPI_DEV *PcatIsaAcpiDev;
+
+ //
+ // Get the ISA ACPI Protocol Interface
+ //
+ Status = gBS->OpenProtocol (
+ Controller,
+ &gEfiIsaAcpiProtocolGuid,
+ (VOID**)&IsaAcpi,
+ This->DriverBindingHandle,
+ Controller,
+ EFI_OPEN_PROTOCOL_GET_PROTOCOL
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ //
+ // Get the PCAT ISA ACPI Device structure from the ISA ACPI Protocol
+ //
+ PcatIsaAcpiDev = PCAT_ISA_ACPI_DEV_FROM_THIS (IsaAcpi);
+
+ PcatIsaAcpiDev->PciIo->Attributes (
+ PcatIsaAcpiDev->PciIo,
+ EfiPciIoAttributeOperationDisable,
+ EFI_PCI_DEVICE_ENABLE | EFI_PCI_IO_ATTRIBUTE_ISA_IO | EFI_PCI_IO_ATTRIBUTE_ISA_MOTHERBOARD_IO,
+ NULL
+ );
+
+ //
+ // Uninstall protocol interface: EFI_ISA_ACPI_PROTOCOL
+ //
+ Status = gBS->UninstallProtocolInterface (
+ Controller,
+ &gEfiIsaAcpiProtocolGuid, &PcatIsaAcpiDev->IsaAcpi
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ gBS->CloseProtocol (
+ Controller,
+ &gEfiPciIoProtocolGuid,
+ This->DriverBindingHandle,
+ Controller
+ );
+
+ gBS->FreePool (PcatIsaAcpiDev);
+
+ return EFI_SUCCESS;
+}
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