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