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Update comments for Protocol definitions to match UEFI spec. 

And add the missing comments for the data structure.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6635 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
lgao4 2008-11-19 14:23:54 +00:00
parent 1ef3d003d6
commit 74fec7085b
9 changed files with 405 additions and 72 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

279
MdePkg/Include/Protocol/Dhcp4.h
View File

@ -33,41 +33,69 @@ typedef struct _EFI_DHCP4_PROTOCOL EFI_DHCP4_PROTOCOL;
#pragma pack(1)
typedef struct {
///
/// DHCP option code.
///
UINT8 OpCode;
///
/// Length of the DHCP option data. Not present if OpCode is 0 or 255.
///
UINT8 Length;
///
/// Start of the DHCP option data. Not present if OpCode is 0 or 255 or if Length is zero.
///
UINT8 Data[1];
} EFI_DHCP4_PACKET_OPTION;
#pragma pack()
#pragma pack(1)
///
/// EFI_DHCP4_PACKET defines the format of DHCPv4 packets. See RFC 2131 for more information.
///
typedef struct {
UINT8 OpCode;
UINT8 HwType;
UINT8 HwAddrLen;
UINT8 Hops;
UINT32 Xid;
UINT16 Seconds;
UINT16 Reserved;
EFI_IPv4_ADDRESS ClientAddr; ///< Client IP address from client
EFI_IPv4_ADDRESS YourAddr; ///< Client IP address from server
EFI_IPv4_ADDRESS ServerAddr; ///< IP address of next server in bootstrap
EFI_IPv4_ADDRESS GatewayAddr; ///< Relay agent IP address
UINT8 ClientHwAddr[16]; ///< Client hardware address
CHAR8 ServerName[64];
CHAR8 BootFileName[128];
UINT8 OpCode;
UINT8 HwType;
UINT8 HwAddrLen;
UINT8 Hops;
UINT32 Xid;
UINT16 Seconds;
UINT16 Reserved;
EFI_IPv4_ADDRESS ClientAddr; ///< Client IP address from client
EFI_IPv4_ADDRESS YourAddr; ///< Client IP address from server
EFI_IPv4_ADDRESS ServerAddr; ///< IP address of next server in bootstrap
EFI_IPv4_ADDRESS GatewayAddr; ///< Relay agent IP address
UINT8 ClientHwAddr[16]; ///< Client hardware address
CHAR8 ServerName[64];
CHAR8 BootFileName[128];
}EFI_DHCP4_HEADER;
#pragma pack()
#pragma pack(1)
typedef struct {
///
/// Size of the EFI_DHCP4_PACKET buffer.
///
UINT32 Size;
///
/// Length of the EFI_DHCP4_PACKET from the first byte of the Header field
/// to the last byte of the Option[] field.
///
UINT32 Length;
struct {
///
/// DHCP packet header.
///
EFI_DHCP4_HEADER Header;
///
/// DHCP magik cookie in network byte order.
///
UINT32 Magik;
///
/// Start of the DHCP packed option data.
///
UINT8 Option[1];
} Dhcp4;
} EFI_DHCP4_PACKET;
@ -75,30 +103,103 @@ typedef struct {
typedef enum {
///
/// The EFI DHCPv4 Protocol driver is stopped
///
Dhcp4Stopped = 0x0,
///
/// The EFI DHCPv4 Protocol driver is inactive
///
Dhcp4Init = 0x1,
///
/// The EFI DHCPv4 Protocol driver is collecting DHCP offer packets from DHCP servers.
///
Dhcp4Selecting = 0x2,
///
/// The EFI DHCPv4 Protocol driver has sent the request to the DHCP server and is waiting for a response.
///
Dhcp4Requesting = 0x3,
///
/// The DHCP configuration has completed.
///
Dhcp4Bound = 0x4,
///
/// The DHCP configuration is being renewed and another request has
/// been sent out, but it has not received a response from the server yet.
///
Dhcp4Renewing = 0x5,
///
/// The DHCP configuration has timed out and the EFI DHCPv4
/// Protocol driver is trying to extend the lease time.
///
Dhcp4Rebinding = 0x6,
///
/// The EFI DHCPv4 Protocol driver is initialized with a previously
/// allocated or known IP address.
///
Dhcp4InitReboot = 0x7,
///
/// The EFI DHCPv4 Protocol driver is seeking to reuse the previously
/// allocated IP address by sending a request to the DHCP server.
///
Dhcp4Rebooting = 0x8
} EFI_DHCP4_STATE;
typedef enum{
///
/// A DHCPDISCOVER packet is about to be sent.
///
Dhcp4SendDiscover = 0x01,
///
/// A DHCPOFFER packet was just received.
///
Dhcp4RcvdOffer = 0x02,
///
/// It is time for Dhcp4Callback to select an offer.
///
Dhcp4SelectOffer = 0x03,
///
/// A request packet is about to be sent.
///
Dhcp4SendRequest = 0x04,
///
/// A DHCPACK packet was received and will be passed to Dhcp4Callback.
///
Dhcp4RcvdAck = 0x05,
///
/// A DHCPNAK packet was received and will be passed to Dhcp4Callback.
///
Dhcp4RcvdNak = 0x06,
///
/// A decline packet is about to be sent.
///
Dhcp4SendDecline = 0x07,
///
/// The DHCP configuration process has completed. No packet is associated with this event.
///
Dhcp4BoundCompleted = 0x08,
///
/// It is time to enter the Dhcp4Renewing state and to contact the server
/// that originally issued the network address. No packet is associated with this event.
///
Dhcp4EnterRenewing = 0x09,
///
/// It is time to enter the Dhcp4Rebinding state and to contact any server.
/// No packet is associated with this event.
///
Dhcp4EnterRebinding = 0x0a,
///
/// The configured IP address was lost either because the lease has expired,
/// the user released the configuration, or a DHCPNAK packet was received in
/// the Dhcp4Renewing or Dhcp4Rebinding state. No packet is associated with this event.
///
Dhcp4AddressLost = 0x0b,
///
/// The DHCP process failed because a DHCPNAK packet was received or the user
/// aborted the DHCP process at a time when the configuration was not available yet.
/// No packet is associated with this event.
///
Dhcp4Fail = 0x0c
} EFI_DHCP4_EVENT;
@ -142,51 +243,165 @@ EFI_STATUS
OUT EFI_DHCP4_PACKET **NewPacket OPTIONAL
);
typedef struct {
///
/// Number of times to try sending DHCPDISCOVER packets and
/// waiting for DHCPOFFER packets before accepting failure.
/// Set to zero to use the default try counts and timeout values.
///
UINT32 DiscoverTryCount;
///
/// Maximum amount of time (in seconds) to wait for DHCPOFFER packets in each
/// of the retries. Timeout values of zero will default to a timeout value
/// of one second. Set to NULL to use default timeout values.
///
UINT32 *DiscoverTimeout;
///
/// Number of times to try sending DHCPREQUEST packets and waiting for DHCPACK
/// packets before accepting failure. Set to zero to use the default try counts and timeout values.
///
UINT32 RequestTryCount;
///
/// Maximum amount of time (in seconds) to wait for DHCPACK packets in each of the retries.
/// Timeout values of zero will default to a timeout value of one second.
/// Set to NULL to use default timeout values.
///
UINT32 *RequestTimeout;
///
/// Setting this parameter to the previously allocated IP address will cause
/// the EFI DHCPv4 Protocol driver to enter the Dhcp4InitReboot state.
/// Set this field to 0.0.0.0 to enter the Dhcp4Init state.
///
EFI_IPv4_ADDRESS ClientAddress;
///
/// The callback function to intercept various events that occurred in
/// the DHCP configuration process. Set to NULL to ignore all those events.
///
EFI_DHCP4_CALLBACK Dhcp4Callback;
void *CallbackContext;
///
/// Pointer to the context that will be passed to Dhcp4Callback when it is called.
///
VOID *CallbackContext;
///
/// Number of DHCP options in the OptionList.
///
UINT32 OptionCount;
///
/// List of DHCP options to be included in every DHCPDISCOVER packet and
/// subsequent DHCPREQUEST packet that is generated from DHCPOFFER packets.
///
EFI_DHCP4_PACKET_OPTION **OptionList;
} EFI_DHCP4_CONFIG_DATA;
typedef struct {
///
/// The EFI DHCPv4 Protocol driver operating state.
///
EFI_DHCP4_STATE State;
///
/// The configuration data of the current EFI DHCPv4 Protocol driver instance.
///
EFI_DHCP4_CONFIG_DATA ConfigData;
///
/// The client IP address that was acquired from the DHCP server. If it is zero,
/// the DHCP acquisition has not completed yet and the following fields in this structure are undefined.
///
EFI_IPv4_ADDRESS ClientAddress;
///
/// The local hardware address.
///
EFI_MAC_ADDRESS ClientMacAddress;
///
/// The server IP address that is providing the DHCP service to this client.
///
EFI_IPv4_ADDRESS ServerAddress;
///
/// The router IP address that was acquired from the DHCP server.
/// May be zero if the server does not offer this address.
///
EFI_IPv4_ADDRESS RouterAddress;
///
/// The subnet mask of the connected network that was acquired from the DHCP server.
///
EFI_IPv4_ADDRESS SubnetMask;
///
/// The lease time (in 1-second units) of the configured IP address.
/// The value 0xFFFFFFFF means that the lease time is infinite.
/// A default lease of 7 days is used if the DHCP server does not provide a value.
///
UINT32 LeaseTime;
///
/// The cached latest DHCPACK or DHCPNAK or BOOTP REPLY packet. May be NULL if no packet is cached.
///
EFI_DHCP4_PACKET *ReplyPacket;
} EFI_DHCP4_MODE_DATA;
typedef struct {
///
/// Alternate listening address. It can be a unicast, multicast, or broadcast address.
///
EFI_IPv4_ADDRESS ListenAddress;
///
/// The subnet mask of above listening unicast/broadcast IP address.
/// Ignored if ListenAddress is a multicast address.
///
EFI_IPv4_ADDRESS SubnetMask;
///
/// Alternate station source (or listening) port number.
/// If zero, then the default station port number (68) will be used.
///
UINT16 ListenPort;
} EFI_DHCP4_LISTEN_POINT;
typedef struct {
///
/// The completion status of transmitting and receiving.
///
EFI_STATUS Status;
///
/// If not NULL, the event that will be signaled when the collection process
/// completes. If NULL, this function will busy-wait until the collection process competes.
///
EFI_EVENT CompletionEvent;
///
/// Pointer to the server IP address. This address may be a unicast, multicast, or broadcast address.
///
EFI_IPv4_ADDRESS RemoteAddress;
///
/// Server listening port number. If zero, the default server listening port number (67) will be used.
///
UINT16 RemotePort;
///
/// Pointer to the gateway address to override the existing setting.
///
EFI_IPv4_ADDRESS GatewayAddress;
///
/// The number of entries in ListenPoints. If zero, the default station address and port number 68 are used.
///
UINT32 ListenPointCount;
///
/// An array of station address and port number pairs that are used as receiving filters.
/// The first entry is also used as the source address and source port of the outgoing packet.
///
EFI_DHCP4_LISTEN_POINT *ListenPoints;
///
/// Number of seconds to collect responses. Zero is invalid.
///
UINT32 TimeoutValue;
///
/// Pointer to the packet to be transmitted.
///
EFI_DHCP4_PACKET *Packet;
///
/// Number of received packets.
///
UINT32 ResponseCount;
///
/// Pointer to the allocated list of received packets.
///
EFI_DHCP4_PACKET *ResponseList;
} EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN;
@ -248,7 +463,12 @@ EFI_STATUS
Dhcp4Stopped, Dhcp4Init, Dhcp4InitReboot, or Dhcp4Bound state;
Or onother instance of this EFI DHCPv4 Protocol driver is already
in a valid configured state.
@retval EFI_INVALID_PARAMETER Some parameter is NULL.
@retval EFI_INVALID_PARAMETER One or more following conditions are TRUE:
This is NULL.
DiscoverTryCount > 0 and DiscoverTimeout is NULL
RequestTryCount > 0 and RequestTimeout is NULL.
OptionCount >0 and OptionList is NULL.
ClientAddress is not a valid unicast address.
@retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
@retval EFI_DEVICE_ERROR An unexpected system or network error occurred.
@ -426,7 +646,15 @@ EFI_STATUS
@retval EFI_SUCCESS The new packet was built.
@retval EFI_OUT_OF_RESOURCES Storage for the new packet could not be allocated.
@retval EFI_INVALID_PARAMETER Some parameter is NULL.
@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
This is NULL.
SeedPacket is NULL.
SeedPacket is not a well-formed DHCP packet.
AppendCount is not zero and AppendList is NULL.
DeleteCount is not zero and DeleteList is NULL.
NewPacket is NULL
Both DeleteCount and AppendCount are zero and
NewPacket is not NULL.
**/
typedef
@ -453,11 +681,17 @@ EFI_STATUS
@param Token Pointer to the EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN structure.
@retval EFI_SUCCESS The packet was successfully queued for transmission.
@retval EFI_INVALID_PARAMETER Some parameter is NULL.
@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
This is NULL.
Token.RemoteAddress is zero.
Token.Packet is NULL.
Token.Packet is not a well-formed DHCP packet.
The transaction ID in Token.Packet is in use by another DHCP process.
@retval EFI_NOT_READY The previous call to this function has not finished yet. Try to call
this function after collection process completes.
@retval EFI_NO_MAPPING The default station address is not available yet.
@retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
@retval EFI_UNSUPPORTED The implementation doesn’t support this function
@retval Others Some other unexpected error occurred.
**/
@ -489,11 +723,16 @@ EFI_STATUS
options are not included.
@retval EFI_SUCCESS The packet was successfully parsed.
@retval EFI_INVALID_PARAMETER Some parameter is NULL.
@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
This is NULL.
Packet is NULL.
Packet is not a well-formed DHCP packet.
OptionCount is NULL.
@retval EFI_BUFFER_TOO_SMALL One or more of the following conditions is TRUE:
1) *OptionCount is smaller than the number of options that
were found in the Packet.
2) PacketOptionList is NULL.
@retval EFI_OUT_OF_RESOURCE The packet is failed to parse because of resource shortage.
**/
typedef

12
MdePkg/Include/Protocol/DiskIo.h
View File

@ -64,13 +64,13 @@ EFI_STATUS
);
/**
Read BufferSize bytes from Offset into Buffer.
Writes a specified number of bytes to a device.
@param This Protocol instance pointer.
@param MediaId Id of the media, changes every time the media is replaced.
@param Offset The starting byte offset to read from
@param BufferSize Size of Buffer
@param Buffer Buffer containing read data
@param This Indicates a pointer to the calling context.
@param MediaId ID of the medium to be written.
@param Offset The starting byte offset on the logical block I/O device to write.
@param BufferSize The size in bytes of Buffer. The number of bytes to write to the device.
@param Buffer A pointer to the buffer containing the data to be written.
@retval EFI_SUCCESS The data was written correctly to the device.
@retval EFI_WRITE_PROTECTED The device can not be written to.

95
MdePkg/Include/Protocol/DriverBinding.h
View File

@ -30,22 +30,27 @@
typedef struct _EFI_DRIVER_BINDING_PROTOCOL EFI_DRIVER_BINDING_PROTOCOL;
/**
Test to see if this driver supports ControllerHandle. This service
is called by the EFI boot service ConnectController(). In
order to make drivers as small as possible, there are a few calling
restrictions for this service. ConnectController() must
follow these calling restrictions. If any other agent wishes to call
Supported() it must also follow these calling restrictions.
Tests to see if this driver supports a given controller. If a child device is provided,
it further tests to see if this driver supports creating a handle for the specified child device.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to test
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
@param ControllerHandle The handle of the controller to test. This handle
must support a protocol interface that supplies
an I/O abstraction to the driver.
@param RemainingDevicePath A pointer to the remaining portion of a device path.
This parameter is ignored by device drivers, and is optional for bus drivers.
@retval EFI_SUCCESS This driver supports this device
@retval EFI_ALREADY_STARTED This driver is already running on this device
@retval other This driver does not support this device
@retval EFI_SUCCESS The device specified by ControllerHandle and
RemainingDevicePath is supported by the driver specified by This.
@retval EFI_ALREADY_STARTED The device specified by ControllerHandle and
RemainingDevicePath is already being managed by the driver
specified by This.
@retval EFI_ACCESS_DENIED The device specified by ControllerHandle and
RemainingDevicePath is already being managed by a different
driver or an application that requires exclusive acces.
@retval EFI_UNSUPPORTED The device specified by ControllerHandle and
RemainingDevicePath is not supported by the driver specified by This.
**/
typedef
EFI_STATUS
@ -56,21 +61,27 @@ EFI_STATUS
);
/**
Start this driver on ControllerHandle. This service is called by the
EFI boot service ConnectController(). In order to make
drivers as small as possible, there are a few calling restrictions for
this service. ConnectController() must follow these
calling restrictions. If any other agent wishes to call Start() it
must also follow these calling restrictions.
Start this driver on ControllerHandle. The Start() function is designed to be
invoked from the EFI boot service ConnectController(). As a result, much of
the error checking on the parameters to Start() has been moved into this
common boot service. It is legal to call Start() from other locations,
but the following calling restrictions must be followed or the system behavior will not be deterministic.
1. ControllerHandle must be a valid EFI_HANDLE.
2. If RemainingDevicePath is not NULL, then it must be a pointer to a naturally aligned
EFI_DEVICE_PATH_PROTOCOL.
3. Prior to calling Start(), the Supported() function for the driver specified by This must
have been called with the same calling parameters, and Supported() must have returned EFI_SUCCESS.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to bind driver to
@param RemainingDevicePath Optional parameter use to pick a specific child
device to start.
@param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
@param ControllerHandle The handle of the controller to start. This handle
must support a protocol interface that supplies
an I/O abstraction to the driver.
@param RemainingDevicePath A pointer to the remaining portion of a device path.
This parameter is ignored by device drivers, and is optional for bus drivers.
@retval EFI_SUCCESS This driver is added to ControllerHandle
@retval EFI_ALREADY_STARTED This driver is already running on ControllerHandle
@retval other This driver does not support this device
@retval EFI_SUCCESS The device was started.
@retval EFI_ALREADY_STARTED The device could not be started due to a device error.
@retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
**/
typedef
@ -82,21 +93,27 @@ EFI_STATUS
);
/**
Stop this driver on ControllerHandle. This service is called by the
EFI boot service DisconnectController(). In order to
make drivers as small as possible, there are a few calling
restrictions for this service. DisconnectController()
must follow these calling restrictions. If any other agent wishes
to call Stop() it must also follow these calling restrictions.
Stop this driver on ControllerHandle.
The Stop() function is designed to be invoked from the EFI boot service DisconnectController().
As a result, much of the error checking on the parameters to Stop() has been moved
into this common boot service. It is legal to call Stop() from other locations,
but the following calling restrictions must be followed or the system behavior will not be deterministic.
1. ControllerHandle must be a valid EFI_HANDLE that was used on a previous call to this
same driver's Start() function.
2. The first NumberOfChildren handles of ChildHandleBuffer must all be a valid
EFI_HANDLE. In addition, all of these handles must have been created in this driver’s
Start() function, and the Start() function must have called OpenProtocol() on
ControllerHandle with an Attribute of EFI_OPEN_PROTOCOL_BY_CHILD_CONTROLLER.
@param This Protocol instance pointer.
@param ControllerHandle Handle of device to stop driver on
@param NumberOfChildren Number of Handles in ChildHandleBuffer. If number of
children is zero stop the entire bus driver.
@param ChildHandleBuffer List of Child Handles to Stop.
@param This A pointer to the EFI_DRIVER_BINDING_PROTOCOL instance.
@param ControllerHandle A handle to the device being stopped. The handle must
support a bus specific I/O protocol for the driver
to use to stop the device.
@param NumberOfChildren The number of child device handles in ChildHandleBuffer.
@param ChildHandleBuffer An array of child handles to be freed. May be NULL if NumberOfChildren is 0.
@retval EFI_SUCCESS This driver is removed ControllerHandle
@retval other This driver was not removed from this device
@retval EFI_SUCCESS The device was stopped.
@retval EFI_DEVICE_ERROR The device could not be stopped due to a device error.
**/
typedef

2
MdePkg/Include/Protocol/DriverConfiguration.h
View File

@ -18,7 +18,7 @@
#include <Protocol/DriverConfiguration2.h>
///
/// Global ID for the Driver Configuration Protocol defined in UEFI 2.0
/// Global ID for the Driver Configuration Protocol defined in EFI 1.1
///
#define EFI_DRIVER_CONFIGURATION_PROTOCOL_GUID \
{ \

2
MdePkg/Include/Protocol/DriverDiagnostics.h
View File

@ -16,7 +16,7 @@
#define __EFI_DRIVER_DIAGNOSTICS_H__
///
/// Global ID for the Driver Diagnostics Protocol as defined in UEFI 2.0.
/// Global ID for the Driver Diagnostics Protocol as defined in EFI 1.1.
///
#define EFI_DRIVER_DIAGNOSTICS_PROTOCOL_GUID \
{ \

5
MdePkg/Include/Protocol/Ebc.h
View File

@ -96,9 +96,8 @@ EFI_STATUS
);
/**
This routine is called by the core firmware to provide the EBC driver with
a function to call to flush the CPU's instruction cache following creation
of a thunk. It is not required.
Registers a callback function that the EBC interpreter calls to flush
the processor instruction cache following creation of thunks.
@param This A pointer to the EFI_EBC_PROTOCOL instance.
@param Flush Pointer to a function of type EBC_ICACH_FLUSH.

4
MdePkg/Include/Protocol/EdidOverride.h
View File

@ -29,9 +29,9 @@ typedef struct _EFI_EDID_OVERRIDE_PROTOCOL EFI_EDID_OVERRIDE_PROTOCOL;
#define EFI_EDID_OVERRIDE_ENABLE_HOT_PLUG 0x02
/**
Return the current video mode information.
Returns policy information and potentially a replacement EDID for the specified video output device.
@param This Protocol instance pointer.
@param This The EFI_EDID_OVERRIDE_PROTOCOL instance.
@param ChildHandle A child handle produced by the Graphics Output EFI
driver that represents a video output device.
@param Attributes The attributes associated with ChildHandle video output device.

15
MdePkg/Include/Protocol/FirmwareVolume2.h
View File

@ -429,10 +429,25 @@ typedef UINT32 EFI_FV_WRITE_POLICY;
// EFI_FV_WRITE_FILE_DATA
//
typedef struct {
///
/// Pointer to a GUID, which is the file name to be written.
///
EFI_GUID *NameGuid;
///
/// Indicates the type of file to be written.
///
EFI_FV_FILETYPE Type;
///
/// Indicates the attributes for the file to be written.
///
EFI_FV_FILE_ATTRIBUTES FileAttributes;
///
/// Pointer to a buffer containing the file to be written.
///
VOID *Buffer;
///
/// Indicates the size of the file image contained in Buffer.
///
UINT32 BufferSize;
} EFI_FV_WRITE_FILE_DATA;

63
MdePkg/Include/Protocol/GraphicsOutput.h
View File

@ -32,19 +32,63 @@ typedef struct {
} EFI_PIXEL_BITMASK;
typedef enum {
///
/// A pixel is 32-bits and byte zero represents red, byte one represents green,
/// byte two represents blue, and byte three is reserved. This is the definition
/// for the physical frame buffer. The byte values for the red, green, and blue
/// components represent the color intensity. This color intensity value range
/// from a minimum intensity of 0 to maximum intensity of 255.
///
PixelRedGreenBlueReserved8BitPerColor,
///
/// A pixel is 32-bits and byte zero represents blue, byte one represents green,
/// byte two represents red, and byte three is reserved. This is the definition
/// for the physical frame buffer. The byte values for the red, green, and blue
/// components represent the color intensity. This color intensity value range
/// from a minimum intensity of 0 to maximum intensity of 255.
///
PixelBlueGreenRedReserved8BitPerColor,
///
/// The Pixel definition of the physical frame buffer.
///
PixelBitMask,
///
/// This mode does not support a physical frame buffer.
///
PixelBltOnly,
///
/// Valid EFI_GRAPHICS_PIXEL_FORMAT enum values are less than this value.
///
PixelFormatMax
} EFI_GRAPHICS_PIXEL_FORMAT;
typedef struct {
///
/// The version of this data structure. A value of zero represents the
/// EFI_GRAPHICS_OUTPUT_MODE_INFORMATION structure as defined in this specification.
///
UINT32 Version;
///
/// The size of video screen in pixels in the X dimension.
///
UINT32 HorizontalResolution;
///
/// The size of video screen in pixels in the Y dimension.
///
UINT32 VerticalResolution;
///
/// Enumeration that defines the physical format of the pixel. A value of PixelBltOnly
/// implies that a linear frame buffer is not available for this mode.
///
EFI_GRAPHICS_PIXEL_FORMAT PixelFormat;
///
/// This bit-mask is only valid if PixelFormat is set to PixelPixelBitMask.
/// A bit being set defines what bits are used for what purpose such as Red, Green, Blue, or Reserved.
///
EFI_PIXEL_BITMASK PixelInformation;
///
/// Defines the number of pixel elements per video memory line.
///
UINT32 PixelsPerScanLine;
} EFI_GRAPHICS_OUTPUT_MODE_INFORMATION;
@ -182,11 +226,30 @@ EFI_STATUS
);
typedef struct {
///
/// The number of modes supported by QueryMode() and SetMode().
///
UINT32 MaxMode;
///
/// Current Mode of the graphics device. Valid mode numbers are 0 to MaxMode -1.
///
UINT32 Mode;
///
/// Pointer to read-only EFI_GRAPHICS_OUTPUT_MODE_INFORMATION data.
///
EFI_GRAPHICS_OUTPUT_MODE_INFORMATION *Info;
///
/// Size of Info structure in bytes.
///
UINTN SizeOfInfo;
///
/// Base address of graphics linear frame buffer.
/// Offset zero in FrameBufferBase represents the upper left pixel of the display.
///
EFI_PHYSICAL_ADDRESS FrameBufferBase;
///
/// Size of the frame buffer represented by FrameBufferBase in bytes.
///
UINTN FrameBufferSize;
} EFI_GRAPHICS_OUTPUT_PROTOCOL_MODE;