audk/DuetPkg/IsaAcpiDxe/IsaAcpi.c

/*++

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:

  IsaAcpi.c
    
Abstract: 
  
    ISA ACPI Protocol Implementation

Revision History

--*/

#include "PcatIsaAcpi.h"

//
// Platform specific data for the ISA devices that are present.in the platform
//

//
// COM 1 UART Controller
//
static EFI_ISA_ACPI_RESOURCE mPcatIsaAcpiCom1DeviceResources[] = {
  {EfiIsaAcpiResourceIo,        0, 0x3f8, 0x3ff},
  {EfiIsaAcpiResourceInterrupt, 0, 4,     0},
  {EfiIsaAcpiResourceEndOfList, 0, 0,     0}
};

//
// COM 2 UART Controller
//
static EFI_ISA_ACPI_RESOURCE mPcatIsaAcpiCom2DeviceResources[] = {
  {EfiIsaAcpiResourceIo,        0, 0x2f8, 0x2ff},
  {EfiIsaAcpiResourceInterrupt, 0, 3,     0},
  {EfiIsaAcpiResourceEndOfList, 0, 0,     0}
};

//
// PS/2 Keyboard Controller
//
static EFI_ISA_ACPI_RESOURCE  mPcatIsaAcpiPs2KeyboardDeviceResources[] = {
  {EfiIsaAcpiResourceIo,        0, 0x60, 0x64},
  {EfiIsaAcpiResourceInterrupt, 0, 1,     0},
  {EfiIsaAcpiResourceEndOfList, 0, 0,     0}
};

//
// PS/2 Mouse Controller
//
static EFI_ISA_ACPI_RESOURCE  mPcatIsaAcpiPs2MouseDeviceResources[] = {
  {EfiIsaAcpiResourceIo,        0, 0x60, 0x64},
  {EfiIsaAcpiResourceInterrupt, 0, 12,     0},
  {EfiIsaAcpiResourceEndOfList, 0, 0,     0}
};

//
// Floppy Disk Controller
//
static EFI_ISA_ACPI_RESOURCE mPcatIsaAcpiFloppyResources[] = {
  {EfiIsaAcpiResourceIo,        0, 0x3f0, 0x3f7},
  {EfiIsaAcpiResourceInterrupt, 0, 6,     0},
  {EfiIsaAcpiResourceDma,       EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SPEED_COMPATIBLE | EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_WIDTH_8 | EFI_ISA_IO_SLAVE_DMA_ATTRIBUTE_SINGLE_MODE, 2,     0},
  {EfiIsaAcpiResourceEndOfList, 0, 0,     0}
};

//
// Table of ISA Controllers
//
EFI_ISA_ACPI_RESOURCE_LIST gPcatIsaAcpiDeviceList[] = {
  {{EISA_PNP_ID(0x501), 0}, mPcatIsaAcpiCom1DeviceResources        }, // COM 1 UART Controller
  {{EISA_PNP_ID(0x501), 1}, mPcatIsaAcpiCom2DeviceResources        }, // COM 2 UART Controller
  {{EISA_PNP_ID(0x303), 0}, mPcatIsaAcpiPs2KeyboardDeviceResources }, // PS/2 Keyboard Controller
  {{EISA_PNP_ID(0x303), 1}, mPcatIsaAcpiPs2MouseDeviceResources    }, // PS/2 Mouse Controller
  {{EISA_PNP_ID(0x604), 0}, mPcatIsaAcpiFloppyResources            }, // Floppy Disk Controller A:
  {{EISA_PNP_ID(0x604), 1}, mPcatIsaAcpiFloppyResources            }, // Floppy Disk Controller B:
  {{0,                  0}, NULL                                   }  // End if ISA Controllers
};

//
// ISA ACPI Protocol Functions
//
VOID
IsaDeviceLookup (
  IN  EFI_ISA_ACPI_DEVICE_ID      *Device,
  OUT EFI_ISA_ACPI_RESOURCE_LIST  **IsaAcpiDevice,
  OUT EFI_ISA_ACPI_RESOURCE_LIST  **NextIsaAcpiDevice
  )
/*++

Routine Description:
  Enumerate the ISA devices on the ISA bus

Arguments:

Returns:

--*/
{
  UINTN  Index;

  *IsaAcpiDevice = NULL;
  if (NextIsaAcpiDevice != NULL) {
    *NextIsaAcpiDevice = NULL;
  }
  if (Device == NULL) {
    Index = 0;
  } else {
    for(Index = 0; gPcatIsaAcpiDeviceList[Index].ResourceItem != NULL; Index++) {
      if (Device->HID == gPcatIsaAcpiDeviceList[Index].Device.HID && 
          Device->UID == gPcatIsaAcpiDeviceList[Index].Device.UID    ) {
        break;
      }
    }
    if (gPcatIsaAcpiDeviceList[Index].ResourceItem == NULL) {
      return;
    }
    *IsaAcpiDevice = &(gPcatIsaAcpiDeviceList[Index]);
    Index++;
  }
  if (gPcatIsaAcpiDeviceList[Index].ResourceItem != NULL && NextIsaAcpiDevice != NULL) {
    *NextIsaAcpiDevice = &(gPcatIsaAcpiDeviceList[Index]);
  }
}

EFI_STATUS
EFIAPI
IsaDeviceEnumerate (
  IN  EFI_ISA_ACPI_PROTOCOL   *This,
  OUT EFI_ISA_ACPI_DEVICE_ID  **Device
  )
/*++

Routine Description:
  Enumerate the ISA devices on the ISA bus

Arguments:

Returns:

--*/
{
  EFI_ISA_ACPI_RESOURCE_LIST  *IsaAcpiDevice;
  EFI_ISA_ACPI_RESOURCE_LIST  *NextIsaAcpiDevice;

  IsaDeviceLookup (*Device, &IsaAcpiDevice, &NextIsaAcpiDevice);
  if (NextIsaAcpiDevice == NULL) {
    return EFI_NOT_FOUND;
  }
  *Device = &(NextIsaAcpiDevice->Device);
  return EFI_SUCCESS;
}

EFI_STATUS
EFIAPI
IsaDeviceSetPower (
  IN EFI_ISA_ACPI_PROTOCOL   *This,
  IN EFI_ISA_ACPI_DEVICE_ID  *Device,
  IN BOOLEAN                 OnOff
  )
/*++

Routine Description:
  Set ISA device power 

Arguments:

Returns:

--*/
{
  return EFI_SUCCESS;
} 

EFI_STATUS
EFIAPI
IsaGetCurrentResource (
  IN  EFI_ISA_ACPI_PROTOCOL       *This,
  IN  EFI_ISA_ACPI_DEVICE_ID      *Device,  
  OUT EFI_ISA_ACPI_RESOURCE_LIST  **ResourceList
  )
/*++

Routine Description:
  Get current Resource of the specific ISA device

Arguments:

Returns:

--*/
{
  IsaDeviceLookup (Device, ResourceList, NULL);
  if (*ResourceList == NULL) {
    return EFI_NOT_FOUND;
  }
  return EFI_SUCCESS;
}

EFI_STATUS
EFIAPI
IsaGetPossibleResource (
  IN  EFI_ISA_ACPI_PROTOCOL       *This,
  IN  EFI_ISA_ACPI_DEVICE_ID      *Device,  
  OUT EFI_ISA_ACPI_RESOURCE_LIST  **ResourceList
  )
/*++

Routine Description:

Arguments:

Returns:

--*/ 
{
  return EFI_SUCCESS;
}

EFI_STATUS
EFIAPI
IsaSetResource (
  IN EFI_ISA_ACPI_PROTOCOL       *This,
  IN EFI_ISA_ACPI_DEVICE_ID      *Device,  
  IN EFI_ISA_ACPI_RESOURCE_LIST  *ResourceList
  )
/*++

Routine Description:

Arguments:

Returns:

--*/
{
  return EFI_SUCCESS;
}
        
EFI_STATUS
EFIAPI
IsaEnableDevice (
  IN EFI_ISA_ACPI_PROTOCOL   *This,
  IN EFI_ISA_ACPI_DEVICE_ID  *Device,
  IN BOOLEAN                 Enable
  )
/*++

Routine Description:

Arguments:

Returns:

--*/
{
  return EFI_SUCCESS;  
}

EFI_STATUS
EFIAPI
IsaInitDevice (
  IN EFI_ISA_ACPI_PROTOCOL   *This,
  IN EFI_ISA_ACPI_DEVICE_ID  *Device
  )
/*++

Routine Description:

Arguments:

Returns:

--*/
{
  return EFI_SUCCESS;
}


EFI_STATUS
EFIAPI
IsaInterfaceInit (
  IN EFI_ISA_ACPI_PROTOCOL  *This
)  
/*++

Routine Description:

Arguments:

Returns:

--*/
{
  return EFI_SUCCESS;
}