[PATCH v2 01/12] MdeModulePkg: Add definitions for ATA AHCI host controller PPI

[Hao Wu <hao.a.wu@intel.com>]

REF:https://bugzilla.tianocore.org/show_bug.cgi?id=1409

This commit will add the definitions for ATA AHCI host controller PPI. The
purpose of the PPI in to provide:

* MMIO base address
* Controller identification information (DevicePath)

for ATA host controllers working under AHCI mode.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
---
 MdeModulePkg/MdeModulePkg.dec                |  3 +
 MdeModulePkg/Include/Ppi/AtaAhciController.h | 89 ++++++++++++++++++++
 2 files changed, 92 insertions(+)

diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index e5c32d15ed..4411185073 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -480,6 +480,9 @@
   ## Include/Ppi/NvmExpressHostController.h
   gEdkiiPeiNvmExpressHostControllerPpiGuid  = { 0xcae3aa63, 0x676f, 0x4da3, { 0xbd, 0x50, 0x6c, 0xc5, 0xed, 0xde, 0x9a, 0xad } }
 
+  ## Include/Ppi/AtaAhciController.h
+  gEdkiiPeiAtaAhciHostControllerPpiGuid     = { 0x61dd33ea, 0x421f, 0x4cc0, { 0x89, 0x29, 0xff, 0xee, 0xa9, 0xa1, 0xa2, 0x61 } }
+
 [Protocols]
   ## Load File protocol provides capability to load and unload EFI image into memory and execute it.
   #  Include/Protocol/LoadPe32Image.h
diff --git a/MdeModulePkg/Include/Ppi/AtaAhciController.h b/MdeModulePkg/Include/Ppi/AtaAhciController.h
new file mode 100644
index 0000000000..2bdd53ff36
--- /dev/null
+++ b/MdeModulePkg/Include/Ppi/AtaAhciController.h
@@ -0,0 +1,89 @@
+/** @file
+
+  Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
+  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.
+
+**/
+
+#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
-- 
2.12.0.windows.1