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/** @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
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