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

This commit will add the definitions for EDKII PEI ATA PassThru PPI. This
PPI will provide services that allow ATA commands to be sent to ATA
devices attached to an ATA controller in the PEI phase.

More specifically, the PPI will provide services to:

* Send ATA commands to an ATA device (by service 'PassThru');
* Get the list of the attached ATA device on a controller (by services
  'GetNextPort' and 'GetNextDevice');
* Get the identification information (DevicePath) of the underlying ATA
  host controller (by service 'GetDevicePath').

Cc: Jian J Wang <jian.j.w...@intel.com>
Cc: Ruiyu Ni <ruiyu...@intel.com>
Cc: Eric Dong <eric.d...@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Hao Wu <hao.a...@intel.com>
---
 MdeModulePkg/MdeModulePkg.dec          |   3 +
 MdeModulePkg/Include/Ppi/AtaPassThru.h | 359 ++++++++++++++++++++
 2 files changed, 362 insertions(+)

diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index 4411185073..8efb19e626 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -483,6 +483,9 @@
   ## Include/Ppi/AtaAhciController.h
   gEdkiiPeiAtaAhciHostControllerPpiGuid     = { 0x61dd33ea, 0x421f, 0x4cc0, { 
0x89, 0x29, 0xff, 0xee, 0xa9, 0xa1, 0xa2, 0x61 } }
 
+  ## Include/Ppi/AtaPassThru.h
+  gEdkiiPeiAtaPassThruPpiGuid               = { 0xa16473fd, 0xd474, 0x4c89, { 
0xae, 0xc7, 0x90, 0xb8, 0x3c, 0x73, 0x86, 0x9  } }
+
 [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/AtaPassThru.h 
b/MdeModulePkg/Include/Ppi/AtaPassThru.h
new file mode 100644
index 0000000000..9281f0b833
--- /dev/null
+++ b/MdeModulePkg/Include/Ppi/AtaPassThru.h
@@ -0,0 +1,359 @@
+/** @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_PASS_THRU_PPI_H_
+#define _EDKII_ATA_PASS_THRU_PPI_H_
+
+#include <Protocol/DevicePath.h>
+
+///
+/// Global ID for the EDKII_PEI_ATA_PASS_THRU_PPI.
+///
+#define EDKII_PEI_ATA_PASS_THRU_PPI_GUID \
+  { \
+    0xa16473fd, 0xd474, 0x4c89, { 0xae, 0xc7, 0x90, 0xb8, 0x3c, 0x73, 0x86, 
0x9 } \
+  }
+
+//
+// Forward declaration for the EDKII_PEI_ATA_PASS_THRU_PPI.
+//
+typedef struct _EDKII_PEI_ATA_PASS_THRU_PPI  EDKII_PEI_ATA_PASS_THRU_PPI;
+
+//
+// Revision The revision to which the ATA Pass Thru PPI interface adheres.
+//          All future revisions must be backwards compatible.
+//          If a future version is not back wards compatible it is not the 
same GUID.
+//
+#define EDKII_PEI_ATA_PASS_THRU_PPI_REVISION                 0x00010000
+
+typedef struct {
+  UINT32    Attributes;
+  UINT32    IoAlign;
+} EDKII_PEI_ATA_PASS_THRU_MODE;
+
+///
+/// If this bit is set, then the EDKII_PEI_ATA_PASS_THRU_PPI interface is for
+/// physical devices on the ATA controller.
+///
+#define EDKII_PEI_ATA_PASS_THRU_ATTRIBUTES_PHYSICAL          0x0001
+///
+/// If this bit is set, then the EDKII_PEI_ATA_PASS_THRU_PPI interface is for
+/// logical devices on the ATA controller.
+///
+#define EDKII_PEI_ATA_PASS_THRU_ATTRIBUTES_LOGICAL           0x0002
+
+typedef struct {
+  UINT8    Reserved1[2];
+  UINT8    AtaStatus;
+  UINT8    AtaError;
+  UINT8    AtaSectorNumber;
+  UINT8    AtaCylinderLow;
+  UINT8    AtaCylinderHigh;
+  UINT8    AtaDeviceHead;
+  UINT8    AtaSectorNumberExp;
+  UINT8    AtaCylinderLowExp;
+  UINT8    AtaCylinderHighExp;
+  UINT8    Reserved2;
+  UINT8    AtaSectorCount;
+  UINT8    AtaSectorCountExp;
+  UINT8    Reserved3[6];
+} EDKII_PEI_ATA_STATUS_BLOCK;
+
+typedef struct {
+  UINT8    Reserved1[2];
+  UINT8    AtaCommand;
+  UINT8    AtaFeatures;
+  UINT8    AtaSectorNumber;
+  UINT8    AtaCylinderLow;
+  UINT8    AtaCylinderHigh;
+  UINT8    AtaDeviceHead;
+  UINT8    AtaSectorNumberExp;
+  UINT8    AtaCylinderLowExp;
+  UINT8    AtaCylinderHighExp;
+  UINT8    AtaFeaturesExp;
+  UINT8    AtaSectorCount;
+  UINT8    AtaSectorCountExp;
+  UINT8    Reserved2[6];
+} EDKII_PEI_ATA_COMMAND_BLOCK;
+
+typedef UINT8 EDKII_PEI_ATA_PASS_THRU_CMD_PROTOCOL;
+
+#define EDKII_PEI_ATA_PASS_THRU_PROTOCOL_ATA_HARDWARE_RESET  0x00
+#define EDKII_PEI_ATA_PASS_THRU_PROTOCOL_ATA_SOFTWARE_RESET  0x01
+#define EDKII_PEI_ATA_PASS_THRU_PROTOCOL_ATA_NON_DATA        0x02
+#define EDKII_PEI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_IN         0x04
+#define EDKII_PEI_ATA_PASS_THRU_PROTOCOL_PIO_DATA_OUT        0x05
+#define EDKII_PEI_ATA_PASS_THRU_PROTOCOL_DMA                 0x06
+#define EDKII_PEI_ATA_PASS_THRU_PROTOCOL_DMA_QUEUED          0x07
+#define EDKII_PEI_ATA_PASS_THRU_PROTOCOL_DEVICE_DIAGNOSTIC   0x08
+#define EDKII_PEI_ATA_PASS_THRU_PROTOCOL_DEVICE_RESET        0x09
+#define EDKII_PEI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_IN        0x0A
+#define EDKII_PEI_ATA_PASS_THRU_PROTOCOL_UDMA_DATA_OUT       0x0B
+#define EDKII_PEI_ATA_PASS_THRU_PROTOCOL_FPDMA               0x0C
+#define EDKII_PEI_ATA_PASS_THRU_PROTOCOL_RETURN_RESPONSE     0xFF
+
+typedef UINT8 EDKII_PEI_ATA_PASS_THRU_LENGTH;
+
+#define EDKII_PEI_ATA_PASS_THRU_LENGTH_BYTES                 0x80
+
+
+#define EDKII_PEI_ATA_PASS_THRU_LENGTH_MASK                  0x70
+#define EDKII_PEI_ATA_PASS_THRU_LENGTH_NO_DATA_TRANSFER      0x00
+#define EDKII_PEI_ATA_PASS_THRU_LENGTH_FEATURES              0x10
+#define EDKII_PEI_ATA_PASS_THRU_LENGTH_SECTOR_COUNT          0x20
+#define EDKII_PEI_ATA_PASS_THRU_LENGTH_TPSIU                 0x30
+
+#define EDKII_PEI_ATA_PASS_THRU_LENGTH_COUNT                 0x0F
+
+typedef struct {
+  //
+  // A pointer to the sense data that was generated by the execution of the ATA
+  // command. It must be aligned to the boundary specified in the IoAlign field
+  // in the EDKII_PEI_ATA_PASS_THRU_PASSTHRU structure.
+  //
+  EDKII_PEI_ATA_STATUS_BLOCK              *Asb;
+  //
+  // A pointer to buffer that contains the Command Data Block to send to the 
ATA
+  // device specified by Port and PortMultiplierPort.
+  //
+  EDKII_PEI_ATA_COMMAND_BLOCK             *Acb;
+  //
+  // The timeout, in 100 ns units, to use for the execution of this ATA 
command.
+  // A Timeout value of 0 means that this function will wait indefinitely for 
the
+  // ATA command to execute. If Timeout is greater than zero, then this 
function
+  // will return EFI_TIMEOUT if the time required to execute the ATA command is
+  // greater than Timeout.
+  //
+  UINT64                                  Timeout;
+  //
+  // A pointer to the data buffer to transfer between the ATA controller and 
the
+  // ATA device for read and bidirectional commands. For all write and non data
+  // commands where InTransferLength is 0 this field is optional and may be 
NULL.
+  // If this field is not NULL, then it must be aligned on the boundary 
specified
+  // by the IoAlign field in the EDKII_PEI_ATA_PASS_THRU_PASSTHRU structure.
+  //
+  VOID                                    *InDataBuffer;
+  //
+  // A pointer to the data buffer to transfer between the ATA controller and 
the
+  // ATA device for write or bidirectional commands. For all read and non data
+  // commands where OutTransferLength is 0 this field is optional and may be 
NULL.
+  // If this field is not NULL, then it must be aligned on the boundary 
specified
+  // by the IoAlign field in the EDKII_PEI_ATA_PASS_THRU_PASSTHRU structure.
+  //
+  VOID                                    *OutDataBuffer;
+  //
+  // On input, the size, in bytes, of InDataBuffer. On output, the number of 
bytes
+  // transferred between the ATA controller and the ATA device. If 
InTransferLength
+  // is larger than the ATA controller can handle, no data will be transferred,
+  // InTransferLength will be updated to contain the number of bytes that the 
ATA
+  // controller is able to transfer, and EFI_BAD_BUFFER_SIZE will be returned.
+  //
+  UINT32                                  InTransferLength;
+  //
+  // On Input, the size, in bytes of OutDataBuffer. On Output, the Number of 
bytes
+  // transferred between ATA Controller and the ATA device. If 
OutTransferLength is
+  // larger than the ATA controller can handle, no data will be transferred,
+  // OutTransferLength will be updated to contain the number of bytes that the 
ATA
+  // controller is able to transfer, and EFI_BAD_BUFFER_SIZE will be returned.
+  //
+  UINT32                                  OutTransferLength;
+  //
+  // Specifies the PPI used when the ATA device executes the command.
+  //
+  EDKII_PEI_ATA_PASS_THRU_CMD_PROTOCOL    Protocol;
+  //
+  // Specifies the way in which the ATA command length is encoded.
+  //
+  EDKII_PEI_ATA_PASS_THRU_LENGTH          Length;
+} EDKII_PEI_ATA_PASS_THRU_COMMAND_PACKET;
+
+
+/**
+  Sends an ATA command to an ATA device that is attached to the ATA controller.
+
+  @param[in]     This                  The PPI instance pointer.
+  @param[in]     Port                  The port number of the ATA device to 
send
+                                       the command.
+  @param[in]     PortMultiplierPort    The port multiplier port number of the 
ATA
+                                       device to send the command.
+                                       If there is no port multiplier, then 
specify
+                                       0xFFFF.
+  @param[in,out] Packet                A pointer to the ATA command to send to
+                                       the ATA device specified by Port and
+                                       PortMultiplierPort.
+
+  @retval EFI_SUCCESS              The ATA command was sent by the host. For
+                                   bi-directional commands, InTransferLength 
bytes
+                                   were transferred from InDataBuffer. For 
write
+                                   and bi-directional commands, 
OutTransferLength
+                                   bytes were transferred by OutDataBuffer.
+  @retval EFI_NOT_FOUND            The specified ATA device is not found.
+  @retval EFI_INVALID_PARAMETER    The contents of Acb are invalid. The ATA 
command
+                                   was not sent, so no additional status 
information
+                                   is available.
+  @retval EFI_BAD_BUFFER_SIZE      The ATA command was not executed. The number
+                                   of bytes that could be transferred is 
returned
+                                   in InTransferLength. For write and 
bi-directional
+                                   commands, OutTransferLength bytes were 
transferred
+                                   by OutDataBuffer.
+  @retval EFI_NOT_READY            The ATA command could not be sent because 
there
+                                   are too many ATA commands already queued. 
The
+                                   caller may retry again later.
+  @retval EFI_DEVICE_ERROR         A device error occurred while attempting to
+                                   send the ATA command.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EDKII_PEI_ATA_PASS_THRU_PASSTHRU) (
+  IN     EDKII_PEI_ATA_PASS_THRU_PPI               *This,
+  IN     UINT16                                    Port,
+  IN     UINT16                                    PortMultiplierPort,
+  IN OUT EDKII_PEI_ATA_PASS_THRU_COMMAND_PACKET    *Packet
+  );
+
+/**
+  Used to retrieve the list of legal port numbers for ATA devices on an ATA 
controller.
+  These can either be the list of ports where ATA devices are actually present 
or the
+  list of legal port numbers for the ATA controller. Regardless, the caller of 
this
+  function must probe the port number returned to see if an ATA device is 
actually
+  present at that location on the ATA controller.
+
+  The GetNextPort() function retrieves the port number on an ATA controller. 
If on
+  input Port is 0xFFFF, then the port number of the first port on the ATA 
controller
+  is returned in Port and EFI_SUCCESS is returned.
+
+  If Port is a port number that was returned on a previous call to 
GetNextPort(),
+  then the port number of the next port on the ATA controller is returned in 
Port,
+  and EFI_SUCCESS is returned. If Port is not 0xFFFF and Port was not returned 
on
+  a previous call to GetNextPort(), then EFI_INVALID_PARAMETER is returned.
+
+  If Port is the port number of the last port on the ATA controller, then 
EFI_NOT_FOUND
+  is returned.
+
+  @param[in]     This    The PPI instance pointer.
+  @param[in,out] Port    On input, a pointer to the port number on the ATA 
controller.
+                         On output, a pointer to the next port number on the 
ATA
+                         controller. An input value of 0xFFFF retrieves the 
first
+                         port number on the ATA controller.
+
+  @retval EFI_SUCCESS              The next port number on the ATA controller 
was
+                                   returned in Port.
+  @retval EFI_NOT_FOUND            There are no more ports on this ATA 
controller.
+  @retval EFI_INVALID_PARAMETER    Port is not 0xFFFF and Port was not returned
+                                   on a previous call to GetNextPort().
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EDKII_PEI_ATA_PASS_THRU_THRU_GET_NEXT_PORT) (
+  IN     EDKII_PEI_ATA_PASS_THRU_PPI    *This,
+  IN OUT UINT16                         *Port
+  );
+
+/**
+  Used to retrieve the list of legal port multiplier port numbers for ATA 
devices
+  on a port of an ATA controller. These can either be the list of port 
multiplier
+  ports where ATA devices are actually present on port or the list of legal 
port
+  multiplier ports on that port. Regardless, the caller of this function must 
probe
+  the port number and port multiplier port number returned to see if an ATA 
device
+  is actually present.
+
+  The GetNextDevice() function retrieves the port multiplier port number of an 
ATA
+  device present on a port of an ATA controller.
+
+  If PortMultiplierPort points to a port multiplier port number value that was
+  returned on a previous call to GetNextDevice(), then the port multiplier port
+  number of the next ATA device on the port of the ATA controller is returned 
in
+  PortMultiplierPort, and EFI_SUCCESS is returned.
+
+  If PortMultiplierPort points to 0xFFFF, then the port multiplier port number
+  of the first ATA device on port of the ATA controller is returned in 
PortMultiplierPort
+  and EFI_SUCCESS is returned.
+
+  If PortMultiplierPort is not 0xFFFF and the value pointed to by 
PortMultiplierPort
+  was not returned on a previous call to GetNextDevice(), then 
EFI_INVALID_PARAMETER
+  is returned.
+
+  If PortMultiplierPort is the port multiplier port number of the last ATA 
device
+  on the port of the ATA controller, then EFI_NOT_FOUND is returned.
+
+  @param[in]     This                  The PPI instance pointer.
+  @param[in]     Port                  The port number present on the ATA 
controller.
+  @param[in,out] PortMultiplierPort    On input, a pointer to the port 
multiplier
+                                       port number of an ATA device present on 
the
+                                       ATA controller. If on input a 
PortMultiplierPort
+                                       of 0xFFFF is specified, then the port 
multiplier
+                                       port number of the first ATA device is 
returned.
+                                       On output, a pointer to the port 
multiplier port
+                                       number of the next ATA device present 
on an ATA
+                                       controller.
+
+  @retval EFI_SUCCESS              The port multiplier port number of the next 
ATA
+                                   device on the port of the ATA controller was
+                                   returned in PortMultiplierPort.
+  @retval EFI_NOT_FOUND            There are no more ATA devices on this port 
of
+                                   the ATA controller.
+  @retval EFI_INVALID_PARAMETER    PortMultiplierPort is not 0xFFFF, and 
PortMultiplierPort
+                                   was not returned on a previous call to 
GetNextDevice().
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EDKII_PEI_ATA_PASS_THRU_GET_NEXT_DEVICE) (
+  IN     EDKII_PEI_ATA_PASS_THRU_PPI    *This,
+  IN     UINT16                         Port,
+  IN OUT UINT16                         *PortMultiplierPort
+  );
+
+/**
+  Gets the device path information of the underlying ATA host controller.
+
+  @param[in]  This                The PPI instance pointer.
+  @param[out] DevicePathLength    The length of the device path in bytes 
specified
+                                  by DevicePath.
+  @param[out] DevicePath          The device path of the underlying ATA 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 device path of the ATA host controller 
has
+                                   been successfully returned.
+  @retval EFI_INVALID_PARAMETER    DevicePathLength or DevicePath is NULL.
+  @retval EFI_OUT_OF_RESOURCES     Not enough resource to return the device 
path.
+
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EDKII_PEI_ATA_PASS_THRU_GET_DEVICE_PATH) (
+  IN  EDKII_PEI_ATA_PASS_THRU_PPI    *This,
+  OUT UINTN                          *DevicePathLength,
+  OUT EFI_DEVICE_PATH_PROTOCOL       **DevicePath
+  );
+
+//
+// EDKII_PEI_ATA_PASS_THRU_PPI provides the services that are required to send
+// ATA commands to an ATA device during PEI.
+//
+struct _EDKII_PEI_ATA_PASS_THRU_PPI {
+  UINT64                                        Revision;
+  EDKII_PEI_ATA_PASS_THRU_MODE                  *Mode;
+  EDKII_PEI_ATA_PASS_THRU_PASSTHRU              PassThru;
+  EDKII_PEI_ATA_PASS_THRU_THRU_GET_NEXT_PORT    GetNextPort;
+  EDKII_PEI_ATA_PASS_THRU_GET_NEXT_DEVICE       GetNextDevice;
+  EDKII_PEI_ATA_PASS_THRU_GET_DEVICE_PATH       GetDevicePath;
+};
+
+extern EFI_GUID gEdkiiPeiAtaPassThruPpiGuid;
+
+#endif
-- 
2.12.0.windows.1

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