1 files changed, 83 insertions, 0 deletions
diff --git a/roms/edk2/MdeModulePkg/Include/Ppi/AtaAhciController.h b/roms/edk2/MdeModulePkg/Include/Ppi/AtaAhciController.h
new file mode 100644
index 000000000..07a2c8c28
--- /dev/null
+++ b/roms/edk2/MdeModulePkg/Include/Ppi/AtaAhciController.h
@@ -0,0 +1,83 @@
+/** @file
+
+  Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef _EDKII_ATA_AHCI_HOST_CONTROLLER_PPI_H_
+#define _EDKII_ATA_AHCI_HOST_CONTROLLER_PPI_H_
+
+#include <Protocol/DevicePath.h>
+
+///
+/// Global ID for the EDKII_ATA_AHCI_HOST_CONTROLLER_PPI.
+///
+#define EDKII_ATA_AHCI_HOST_CONTROLLER_PPI_GUID \
+  { \
+    0x61dd33ea, 0x421f, 0x4cc0, { 0x89, 0x29, 0xff, 0xee, 0xa9, 0xa1, 0xa2, 0x61 } \
+  }
+
+//
+// Forward declaration for the EDKII_ATA_AHCI_HOST_CONTROLLER_PPI.
+//
+typedef struct _EDKII_ATA_AHCI_HOST_CONTROLLER_PPI  EDKII_ATA_AHCI_HOST_CONTROLLER_PPI;
+
+/**
+  Get the MMIO base address of ATA AHCI host controller.
+
+  @param[in]  This                 The PPI instance pointer.
+  @param[in]  ControllerId         The ID of the ATA AHCI host controller.
+  @param[out] MmioBar              The MMIO base address of the controller.
+
+  @retval EFI_SUCCESS              The operation succeeds.
+  @retval EFI_INVALID_PARAMETER    The parameters are invalid.
+  @retval EFI_NOT_FOUND            The specified ATA AHCI host controller not found.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EDKII_ATA_AHCI_HC_GET_MMIO_BAR) (
+  IN  EDKII_ATA_AHCI_HOST_CONTROLLER_PPI    *This,
+  IN  UINT8                                 ControllerId,
+  OUT UINTN                                 *MmioBar
+  );
+
+/**
+  Get the device path of ATA AHCI host controller.
+
+  @param[in]  This                 The PPI instance pointer.
+  @param[in]  ControllerId         The ID of the ATA AHCI host controller.
+  @param[out] DevicePathLength     The length of the device path in bytes specified
+                                   by DevicePath.
+  @param[out] DevicePath           The device path of ATA AHCI host controller.
+                                   This field re-uses EFI Device Path Protocol as
+                                   defined by Section 10.2 EFI Device Path Protocol
+                                   of UEFI 2.7 Specification.
+
+  @retval EFI_SUCCESS              The operation succeeds.
+  @retval EFI_INVALID_PARAMETER    The parameters are invalid.
+  @retval EFI_NOT_FOUND            The specified ATA AHCI host controller not found.
+  @retval EFI_OUT_OF_RESOURCES     The operation fails due to lack of resources.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EDKII_ATA_AHCI_HC_GET_DEVICE_PATH) (
+  IN  EDKII_ATA_AHCI_HOST_CONTROLLER_PPI    *This,
+  IN  UINT8                                 ControllerId,
+  OUT UINTN                                 *DevicePathLength,
+  OUT EFI_DEVICE_PATH_PROTOCOL              **DevicePath
+  );
+
+//
+// This PPI contains a set of services to interact with the ATA AHCI host controller.
+//
+struct _EDKII_ATA_AHCI_HOST_CONTROLLER_PPI {
+  EDKII_ATA_AHCI_HC_GET_MMIO_BAR       GetAhciHcMmioBar;
+  EDKII_ATA_AHCI_HC_GET_DEVICE_PATH    GetAhciHcDevicePath;
+};
+
+extern EFI_GUID gEdkiiPeiAtaAhciHostControllerPpiGuid;
+
+#endif