/** @file
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Header file for Rst Library
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Copyright (c) 2017, 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 _RST_PRIVATE_LIB_
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#define _RST_PRIVATE_LIB_
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#include <Uefi/UefiBaseType.h>
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#include <Library/PchInfoLib.h>
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#include <PchLimits.h>
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#include <Library/DebugLib.h>
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#include <Library/IoLib.h>
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#include <Library/PchPcieRpLib.h>
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#include <Library/MmPciLib.h>
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#include <Library/PchInitCommonLib.h>
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#include <PcieRegs.h>
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#define RST_PCIE_STORAGE_INTERFACE_NONE 0
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#define RST_PCIE_STORAGE_INTERFACE_AHCI 1
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#define RST_PCIE_STORAGE_INTERFACE_NVME 2
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#define RST_STONY_BEACH_VENDOR_ID 0x8086
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#define RST_STONY_BEACH_DEVICE_ID 0x2522
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#define PCI_CLASS_MASS_STORAGE_NVME 0x08
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#define PCI_CLASS_MASS_STORAGE_AHCI PCI_CLASS_MASS_STORAGE_SATADPA
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/**
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Check if there is a remap capable storage device present on Root Port
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@param[in] RpNumber Number of a Root Port to check
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@param[in] TempPciBus Temporary Pci Bus Number
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@retval UINT8 Device Programming interface, 0 if no remap capable device present
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**/
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UINT8
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RstGetProgInterfaceForRemapDevice (
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IN UINT32 RpNumber,
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IN UINT32 TempPciBus
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);
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/**
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Check the lane occupied by certain root port according to the root port number and configuration strap
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Return 8-bit bitmap where each bit represents the lane number (e.g.: return 00000011b means the root port owns 2 lane)
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@param[in] RootPortNum Root Port Number
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@retval UINT8 Lane Occupied by the Root Port (bitmap)
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**/
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UINT8
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RstGetRpLaneOccupyMask (
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IN UINT32 RootPortNum
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);
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/**
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Checks PCH generation and returns SATA's GCR.PLS bit number according to root port number with a PCIe storage device
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connected to.
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@param[in] RootPortNum Root port number which PCIe storage device is connected to
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@retval UINT32 Number of GCR.PLS bit representing root port
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**/
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UINT32
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RstPlsBitNumber (
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IN UINT32 RootPortNum
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);
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/**
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Checks if device with given PCI config space address is Intel's Stony Beach.
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@param[in] EndPointPciBase Address of device's PCI config space
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@retval BOOLEAN TRUE if device is Intel's Stony Beach, FALSE othrwise
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**/
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BOOLEAN
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RstIsStonyBeach (
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IN UINTN EndPointPciBase
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);
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#endif
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