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| 1099 | pj | 1 | /* |
| 2 | * Project: S.Ha.R.K. |
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| 3 | * |
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| 4 | * Coordinators: |
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| 5 | * Giorgio Buttazzo <giorgio@sssup.it> |
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| 6 | * Paolo Gai <pj@gandalf.sssup.it> |
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| 7 | * |
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| 8 | * Authors : |
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| 9 | * Paolo Gai <pj@gandalf.sssup.it> |
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| 10 | * (see the web pages for full authors list) |
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| 11 | * |
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| 12 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
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| 13 | * |
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| 14 | * http://www.sssup.it |
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| 15 | * http://retis.sssup.it |
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| 16 | * http://shark.sssup.it |
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| 17 | */ |
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| 18 | |||
| 19 | /** |
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| 20 | ------------ |
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| 21 | CVS : $Id: iaster3.c,v 1.1 2002-10-28 08:13:37 pj Exp $ |
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| 22 | |||
| 23 | File: $File$ |
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| 24 | Revision: $Revision: 1.1 $ |
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| 25 | Last update: $Date: 2002-10-28 08:13:37 $ |
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| 26 | ------------ |
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| 27 | |||
| 28 | System initialization file |
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| 29 | |||
| 30 | The tick is set to TICK ms. |
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| 31 | |||
| 32 | This file contains the 2 functions needed to initialize the system. |
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| 33 | |||
| 34 | These functions register the following levels: |
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| 35 | |||
| 36 | an EDF (Earliest Deadline First) level |
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| 37 | a RR (Round Robin) level |
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| 38 | a TBS (Total Bandwidth Server) level 0.1 Us |
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| 39 | a TBS (Total Bandwidth Server) level 0.3 Us |
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| 40 | a Dummy level |
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| 41 | |||
| 42 | The TBS bandwidth is TBS_NUM/TBS_DEN |
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| 43 | |||
| 44 | |||
| 45 | It can accept these task models (into () the mandatory fields): |
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| 46 | |||
| 47 | HARD_TASK_MODEL (wcet+mit) at level 0 |
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| 48 | NRT_TASK_MODEL at level 1 |
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| 49 | SOFT_TASK_MODEL (wcet, periodicity=APERIODIC) at level 2,3 |
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| 50 | |||
| 51 | **/ |
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| 52 | |||
| 53 | /* |
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| 54 | * Copyright (C) 2000 Paolo Gai |
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| 55 | * |
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| 56 | * This program is free software; you can redistribute it and/or modify |
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| 57 | * it under the terms of the GNU General Public License as published by |
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| 58 | * the Free Software Foundation; either version 2 of the License, or |
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| 59 | * (at your option) any later version. |
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| 60 | * |
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| 61 | * This program is distributed in the hope that it will be useful, |
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| 62 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 63 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 64 | * GNU General Public License for more details. |
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| 65 | * |
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| 66 | * You should have received a copy of the GNU General Public License |
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| 67 | * along with this program; if not, write to the Free Software |
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| 68 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 69 | * |
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| 70 | */ |
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| 71 | |||
| 72 | |||
| 73 | |||
| 74 | #include "kernel/kern.h" |
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| 75 | #include "modules/edf.h" |
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| 76 | #include "modules/rr.h" |
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| 77 | #include "modules/tbs.h" |
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| 78 | #include "modules/dummy.h" |
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| 79 | #include "drivers/keyb.h" |
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| 80 | |||
| 81 | |||
| 82 | /*+ sysyem tick in us +*/ |
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| 83 | #define TICK 1200 |
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| 84 | |||
| 85 | #define RRTICK 5000 |
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| 86 | #define TBS_NUM 1 |
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| 87 | #define TBS_DEN 10 |
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| 88 | |||
| 89 | |||
| 90 | TIME __kernel_register_levels__(void *arg) |
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| 91 | { |
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| 92 | struct multiboot_info *mb = (struct multiboot_info *)arg; |
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| 93 | |||
| 94 | EDF_register_level(EDF_ENABLE_ALL); |
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| 95 | RR_register_level(RRTICK, RR_MAIN_YES, mb); |
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| 96 | TBS_register_level(TBS_ENABLE_ALL, 0, TBS_NUM, TBS_DEN); |
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| 97 | TBS_register_level(TBS_ENABLE_ALL, 0, TBS_NUM*3, TBS_DEN); |
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| 98 | dummy_register_level(); |
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| 99 | |||
| 100 | return TICK; |
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| 101 | } |
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| 102 | |||
| 103 | TASK __init__(void *arg) |
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| 104 | { |
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| 105 | struct multiboot_info *mb = (struct multiboot_info *)arg; |
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| 106 | |||
| 107 | __call_main__(mb); |
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| 108 | |||
| 109 | return (void *)0; |
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| 110 | } |
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| 111 |