projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| c7de829c WD |
1 | /**************************************************************************** |
| 2 | * | |
| 3 | * SciTech Nucleus Graphics Architecture | |
| 4 | * | |
| 5 | * Copyright (C) 1991-1998 SciTech Software, Inc. | |
| 6 | * All rights reserved. | |
| 7 | * | |
| 8 | * ====================================================================== | |
| 9 | * |REMOVAL OR MODIFICATION OF THIS HEADER IS STRICTLY PROHIBITED BY LAW| | |
| 10 | * | | | |
| 11 | * |This copyrighted computer code contains proprietary technology | | |
| 12 | * |owned by SciTech Software, Inc., located at 505 Wall Street, | | |
| 13 | * |Chico, CA 95928 USA (http://www.scitechsoft.com). | | |
| 14 | * | | | |
| 15 | * |The contents of this file are subject to the SciTech Nucleus | | |
| 16 | * |License; you may *not* use this file or related software except in | | |
| 17 | * |compliance with the License. You may obtain a copy of the License | | |
| 18 | * |at http://www.scitechsoft.com/nucleus-license.txt | | |
| 19 | * | | | |
| 20 | * |Software distributed under the License is distributed on an | | |
| 21 | * |"AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or | | |
| 22 | * |implied. See the License for the specific language governing | | |
| 23 | * |rights and limitations under the License. | | |
| 24 | * | | | |
| 25 | * |REMOVAL OR MODIFICATION OF THIS HEADER IS STRICTLY PROHIBITED BY LAW| | |
| 26 | * ====================================================================== | |
| 27 | * | |
| 28 | * Language: ANSI C | |
| 29 | * Environment: Linux | |
| 30 | * | |
| 31 | * Description: OS specific Nucleus Graphics Architecture services for | |
| 32 | * the Linux operating system. | |
| 33 | * | |
| 34 | ****************************************************************************/ | |
| 35 | ||
| 36 | #include "nucleus/graphics.h" | |
| 37 | #include <sys/time.h> | |
| 38 | ||
| 39 | /*---------------------------- Global Variables ---------------------------*/ | |
| 40 | ||
| 41 | static ibool haveRDTSC; | |
| 42 | ||
| 43 | /*-------------------------- Implementation -------------------------------*/ | |
| 44 | ||
| 45 | /**************************************************************************** | |
| 46 | REMARKS: | |
| 47 | Nothing special for this OS. | |
| 48 | ****************************************************************************/ | |
| 49 | GA_sharedInfo * NAPI GA_getSharedInfo( | |
| 50 | int device) | |
| 51 | { | |
| 52 | (void)device; | |
| 53 | return NULL; | |
| 54 | } | |
| 55 | ||
| 56 | /**************************************************************************** | |
| 57 | REMARKS: | |
| 58 | Nothing special for this OS. | |
| 59 | ****************************************************************************/ | |
| 60 | ibool NAPI GA_getSharedExports( | |
| 61 | GA_exports *gaExp) | |
| 62 | { | |
| 63 | (void)gaExp; | |
| 64 | return false; | |
| 65 | } | |
| 66 | ||
| 67 | /**************************************************************************** | |
| 68 | REMARKS: | |
| 69 | This function initialises the high precision timing functions for the | |
| 70 | Nucleus loader library. | |
| 71 | ****************************************************************************/ | |
| 72 | ibool NAPI GA_TimerInit(void) | |
| 73 | { | |
| 74 | if (_GA_haveCPUID() && (_GA_getCPUIDFeatures() & CPU_HaveRDTSC) != 0) | |
| 8bde7f77 | 75 | haveRDTSC = true; |
| c7de829c WD |
76 | return true; |
| 77 | } | |
| 78 | ||
| 79 | /**************************************************************************** | |
| 80 | REMARKS: | |
| 81 | This function reads the high resolution timer. | |
| 82 | ****************************************************************************/ | |
| 83 | void NAPI GA_TimerRead( | |
| 84 | GA_largeInteger *value) | |
| 85 | { | |
| 86 | if (haveRDTSC) | |
| 8bde7f77 | 87 | _GA_readTimeStamp(value); |
| c7de829c | 88 | else { |
| 8bde7f77 WD |
89 | struct timeval t; |
| 90 | gettimeofday(&t, NULL); | |
| 91 | value->low = t.tv_sec*1000000 + t.tv_usec; | |
| 92 | value->high = 0; | |
| 93 | } | |
| c7de829c | 94 | } |