projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 3cbfba02 DW |
1 | /*++\r |
| 2 | \r | |
| 3 | Copyright (c) 2004 - 2014, Intel Corporation. All rights reserved.<BR>\r | |
| 4 | \r\r | |
| 9dc8036d MK |
5 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
| 6 | \r | |
| 3cbfba02 DW |
7 | \r\r |
| 8 | \r | |
| 9 | Module Name:\r | |
| 10 | \r | |
| 11 | LegacyMetronome.h\r | |
| 12 | \r | |
| 13 | Abstract:\r | |
| 14 | \r | |
| 15 | Driver implementing the EFI 2.0 metronome protocol using the legacy PORT 61\r | |
| 16 | timer.\r | |
| 17 | \r | |
| 18 | --*/\r | |
| 19 | \r | |
| 20 | #ifndef _LEGACY_METRONOME_H\r | |
| 21 | #define _LEGACY_METRONOME_H\r | |
| 22 | \r | |
| 23 | //\r | |
| 24 | // Statements that include other files\r | |
| 25 | //\r | |
| 26 | #include "Protocol/Metronome.h"\r | |
| 27 | #include "Protocol/CpuIo.h"\r | |
| 28 | #include "Library/DebugLib.h"\r | |
| 29 | #include "Library/UefiBootServicesTableLib.h"\r | |
| 30 | \r | |
| 31 | \r | |
| 32 | //\r | |
| 33 | // Private definitions\r | |
| 34 | //\r | |
| 35 | #define TICK_PERIOD 300\r | |
| 36 | #define REFRESH_PORT 0x61\r | |
| 37 | #define REFRESH_ON 0x10\r | |
| 38 | #define REFRESH_OFF 0x00\r | |
| 39 | #define TIMER1_CONTROL_PORT 0x43\r | |
| 40 | #define TIMER1_COUNT_PORT 0x41\r | |
| 41 | #define LOAD_COUNTER1_LSB 0x54\r | |
| 42 | #define COUNTER1_COUNT 0x12\r | |
| 43 | \r | |
| 44 | //\r | |
| 45 | // Function Prototypes\r | |
| 46 | //\r | |
| 47 | /**\r | |
| 48 | Waits for the TickNumber of ticks from a known platform time source.\r | |
| 49 | \r | |
| 50 | @param This Pointer to the protocol instance.\r | |
| 51 | @param TickNumber Tick Number to be waited\r | |
| 52 | \r | |
| 53 | @retval EFI_SUCCESS If number of ticks occurred.\r | |
| 54 | @retval EFI_NOT_FOUND Could not locate CPU IO protocol\r | |
| 55 | \r | |
| 56 | **/\r | |
| 57 | EFI_STATUS\r | |
| 58 | EFIAPI\r | |
| 59 | WaitForTick (\r | |
| 60 | IN EFI_METRONOME_ARCH_PROTOCOL *This,\r | |
| 61 | IN UINT32 TickNumber\r | |
| 62 | );\r | |
| 63 | \r | |
| 64 | #endif\r |