/** @file\r
- Metronome Architectural Protocol as defined in DXE CIS\r
+ Metronome Architectural Protocol as defined in PI SPEC VOLUME 2 DXE\r
\r
This code abstracts the DXE core to provide delay services.\r
\r
- Copyright (c) 2006, Intel Corporation \r
- All rights reserved. This program and the accompanying materials \r
- are licensed and made available under the terms and conditions of the BSD License \r
- which accompanies this distribution. The full text of the license may be found at \r
- http://opensource.org/licenses/bsd-license.php \r
+ Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>\r
+ This program and the accompanying materials\r
+ are licensed and made available under the terms and conditions of the BSD License\r
+ which accompanies this distribution. The full text of the license may be found at\r
+ http://opensource.org/licenses/bsd-license.php\r
\r
- THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r
- WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r
-\r
- @par Revision Reference:\r
- Version 0.91B.\r
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#ifndef __ARCH_PROTOCOL_METRONOME_H__\r
#define __ARCH_PROTOCOL_METRONOME_H__\r
\r
-//\r
-// Global ID for the Metronome Architectural Protocol\r
-//\r
+///\r
+/// Global ID for the Metronome Architectural Protocol\r
+///\r
#define EFI_METRONOME_ARCH_PROTOCOL_GUID \\r
{ 0x26baccb2, 0x6f42, 0x11d4, {0xbc, 0xe7, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81 } }\r
\r
-//\r
-// Declare forward reference for the Metronome Architectural Protocol\r
-//\r
+///\r
+/// Declare forward reference for the Metronome Architectural Protocol\r
+///\r
typedef struct _EFI_METRONOME_ARCH_PROTOCOL EFI_METRONOME_ARCH_PROTOCOL;\r
\r
/**\r
- The WaitForTick() function waits for the number of ticks specified by \r
- TickNumber from a known time source in the platform. If TickNumber of \r
- ticks are detected, then EFI_SUCCESS is returned. The actual time passed \r
- between entry of this function and the first tick is between 0 and \r
- TickPeriod 100 nS units. If you want to guarantee that at least TickPeriod \r
- time has elapsed, wait for two ticks. This function waits for a hardware \r
- event to determine when a tick occurs. It is possible for interrupt \r
- processing, or exception processing to interrupt the execution of the \r
- WaitForTick() function. Depending on the hardware source for the ticks, it \r
- is possible for a tick to be missed. This function cannot guarantee that \r
- ticks will not be missed. If a timeout occurs waiting for the specified \r
+ The WaitForTick() function waits for the number of ticks specified by\r
+ TickNumber from a known time source in the platform. If TickNumber of\r
+ ticks are detected, then EFI_SUCCESS is returned. The actual time passed\r
+ between entry of this function and the first tick is between 0 and\r
+ TickPeriod 100 nS units. If you want to guarantee that at least TickPeriod\r
+ time has elapsed, wait for two ticks. This function waits for a hardware\r
+ event to determine when a tick occurs. It is possible for interrupt\r
+ processing, or exception processing to interrupt the execution of the\r
+ WaitForTick() function. Depending on the hardware source for the ticks, it\r
+ is possible for a tick to be missed. This function cannot guarantee that\r
+ ticks will not be missed. If a timeout occurs waiting for the specified\r
number of ticks, then EFI_TIMEOUT is returned.\r
\r
@param This The EFI_METRONOME_ARCH_PROTOCOL instance.\r
@retval EFI_TIMEOUT A timeout occurred waiting for the specified number of ticks.\r
\r
**/\r
-typedef \r
+typedef\r
EFI_STATUS\r
(EFIAPI *EFI_METRONOME_WAIT_FOR_TICK)(\r
IN EFI_METRONOME_ARCH_PROTOCOL *This,\r
IN UINT32 TickNumber\r
);\r
\r
-//\r
-//\r
-\r
-/**\r
- Interface stucture for the Metronome Architectural Protocol.\r
-\r
- @par Protocol Description:\r
- This protocol provides access to a known time source in the platform to the\r
- core. The core uses this known time source to produce core services that \r
- require calibrated delays. \r
-\r
- @param WaitForTick\r
- Waits for a specified number of ticks from a known time source \r
- in the platform. The actual time passed between entry of this \r
- function and the first tick is between 0 and TickPeriod 100 nS \r
- units. If you want to guarantee that at least TickPeriod time \r
- has elapsed, wait for two ticks.\r
-\r
- @param TickPeriod\r
- The period of platform's known time source in 100 nS units. \r
- This value on any platform must be at least 10 uS, and must not \r
- exceed 200 uS. The value in this field is a constant that must \r
- not be modified after the Metronome architectural protocol is \r
- installed. All consumers must treat this as a read-only field.\r
-\r
-**/\r
+///\r
+/// This protocol provides access to a known time source in the platform to the\r
+/// core. The core uses this known time source to produce core services that\r
+/// require calibrated delays.\r
+///\r
struct _EFI_METRONOME_ARCH_PROTOCOL {\r
EFI_METRONOME_WAIT_FOR_TICK WaitForTick;\r
+\r
+ ///\r
+ /// The period of platform's known time source in 100 nS units.\r
+ /// This value on any platform must be at least 10 uS, and must not\r
+ /// exceed 200 uS. The value in this field is a constant that must\r
+ /// not be modified after the Metronome architectural protocol is\r
+ /// installed. All consumers must treat this as a read-only field.\r
+ ///\r
UINT32 TickPeriod;\r
};\r
\r
projects / mirror_edk2.git / blobdiff