X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=MdeModulePkg%2FInclude%2FPpi%2FAtaPassThru.h;fp=MdeModulePkg%2FInclude%2FPpi%2FAtaPassThru.h;h=78bdaef9e2cd8b5660ceb6a50ba6581674bc8a9a;hp=0000000000000000000000000000000000000000;hb=caa7cbbfcf8285f5be68f2c12b66e56fc59950fb;hpb=af2cf989dfa48534965a1ba79e9ce41da99c5f3c
diff --git a/MdeModulePkg/Include/Ppi/AtaPassThru.h b/MdeModulePkg/Include/Ppi/AtaPassThru.h
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+/** @file
+
+ Copyright (c) 2019, Intel Corporation. All rights reserved.
+ 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
+#include
+
+///
+/// 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
+
+
+/**
+ 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 EFI_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;
+ EFI_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