| 1 | /*++ @file\r |
| 2 | Emu Emulation Architectural Protocol Driver as defined in UEFI/PI.\r |
| 3 | This Timer module uses an UNIX Thread to simulate the timer-tick driven\r |
| 4 | timer service.\r |
| 5 | \r |
| 6 | Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>\r |
| 7 | Portions copyright (c) 2010 - 2011, Apple Inc. All rights reserved.\r |
| 8 | This program and the accompanying materials \r |
| 9 | are licensed and made available under the terms and conditions of the BSD License \r |
| 10 | which accompanies this distribution. The full text of the license may be found at \r |
| 11 | http://opensource.org/licenses/bsd-license.php \r |
| 12 | \r |
| 13 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r |
| 14 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r |
| 15 | \r |
| 16 | \r |
| 17 | **/\r |
| 18 | \r |
| 19 | #ifndef _TIMER_H_\r |
| 20 | #define _TIMER_H_\r |
| 21 | \r |
| 22 | \r |
| 23 | \r |
| 24 | \r |
| 25 | //\r |
| 26 | // Legal timer value range in 100 ns units\r |
| 27 | //\r |
| 28 | #define TIMER_MINIMUM_VALUE 0\r |
| 29 | #define TIMER_MAXIMUM_VALUE (0x100000000ULL - 1)\r |
| 30 | \r |
| 31 | //\r |
| 32 | // Default timer value in 100 ns units (50 ms)\r |
| 33 | //\r |
| 34 | #define DEFAULT_TIMER_TICK_DURATION 500000\r |
| 35 | \r |
| 36 | //\r |
| 37 | // Function Prototypes\r |
| 38 | //\r |
| 39 | EFI_STATUS\r |
| 40 | EFIAPI\r |
| 41 | EmuTimerDriverInitialize (\r |
| 42 | IN EFI_HANDLE ImageHandle,\r |
| 43 | IN EFI_SYSTEM_TABLE *SystemTable\r |
| 44 | );\r |
| 45 | \r |
| 46 | EFI_STATUS\r |
| 47 | EFIAPI\r |
| 48 | EmuTimerDriverRegisterHandler (\r |
| 49 | IN EFI_TIMER_ARCH_PROTOCOL *This,\r |
| 50 | IN EFI_TIMER_NOTIFY NotifyFunction\r |
| 51 | );\r |
| 52 | \r |
| 53 | EFI_STATUS\r |
| 54 | EFIAPI\r |
| 55 | EmuTimerDriverSetTimerPeriod (\r |
| 56 | IN EFI_TIMER_ARCH_PROTOCOL *This,\r |
| 57 | IN UINT64 TimerPeriod\r |
| 58 | );\r |
| 59 | \r |
| 60 | EFI_STATUS\r |
| 61 | EFIAPI\r |
| 62 | EmuTimerDriverGetTimerPeriod (\r |
| 63 | IN EFI_TIMER_ARCH_PROTOCOL *This,\r |
| 64 | OUT UINT64 *TimerPeriod\r |
| 65 | );\r |
| 66 | \r |
| 67 | EFI_STATUS\r |
| 68 | EFIAPI\r |
| 69 | EmuTimerDriverGenerateSoftInterrupt (\r |
| 70 | IN EFI_TIMER_ARCH_PROTOCOL *This\r |
| 71 | );\r |
| 72 | \r |
| 73 | #endif\r |