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2 | 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 | * Massimiliano Giorgi <massy@gandalf.sssup.it> |
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11 | * Luca Abeni <luca@gandalf.sssup.it> |
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12 | * (see the web pages for full authors list) |
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13 | * |
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14 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
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15 | * |
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16 | * http://www.sssup.it |
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17 | * http://retis.sssup.it |
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18 | * http://shark.sssup.it |
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19 | */ |
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20 | |||
21 | /*************************************** |
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22 | |||
80 | pj | 23 | CVS : $Id: bqueue.h,v 1.2 2003-03-13 13:43:13 pj Exp $ |
2 | pj | 24 | |
80 | pj | 25 | Revision: $Revision: 1.2 $ |
2 | pj | 26 | |
80 | pj | 27 | Last update: $Date: 2003-03-13 13:43:13 $ |
2 | pj | 28 | |
29 | This module is responsable of the protocol between the IDE device driver |
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30 | interface and the host (the computer). |
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31 | |||
32 | ***************************************/ |
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33 | |||
34 | /* |
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35 | * Copyright (C) 1999,2000 Massimiliano Giorgi |
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36 | * |
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37 | * This program is free software; you can redistribute it and/or modify |
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38 | * it under the terms of the GNU General Public License as published by |
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39 | * the Free Software Foundation; either version 2 of the License, or |
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40 | * (at your option) any later version. |
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41 | * |
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42 | * This program is distributed in the hope that it will be useful, |
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43 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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44 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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45 | * GNU General Public License for more details. |
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46 | * |
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47 | * You should have received a copy of the GNU General Public License |
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48 | * along with this program; if not, write to the Free Software |
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49 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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50 | * |
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51 | */ |
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52 | |||
53 | #ifndef __BQUEUE_H |
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54 | #define __BQUEUE_H |
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55 | |||
56 | struct request_prolog; |
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57 | |||
58 | #ifdef _SCHED_FCFS |
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59 | #include "fcfs/fcfs.h" |
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60 | #endif |
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61 | #ifdef _SCHED_SSTF |
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62 | #include "sstf/sstf.h" |
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63 | #endif |
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64 | #ifdef _SCHED_LOOK |
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65 | #include "look/look.h" |
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66 | #endif |
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67 | #ifdef _SCHED_CLOOK |
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68 | #include "clook/clook.h" |
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69 | #endif |
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70 | #ifdef _SCHED_EDF |
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71 | #include "edf/edf.h" |
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72 | #endif |
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73 | #ifdef _SCHED_PSCAN |
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74 | #include "pscan/pscan.h" |
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75 | #endif |
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76 | |||
80 | pj | 77 | #include "ll/sys/cdefs.h" |
78 | |||
79 | __BEGIN_DECLS |
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80 | |||
2 | pj | 81 | #define REQ_DUMMY 0 |
82 | #define REQ_SEEK 1 |
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83 | #define REQ_READ 2 |
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84 | #define REQ_WRITE 3 |
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85 | |||
86 | struct request_prologue { |
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87 | unsigned sector; |
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88 | unsigned head; |
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89 | unsigned cylinder; |
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90 | unsigned nsectors; |
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91 | unsigned operation; |
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92 | /*--*/ |
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93 | struct request_specific x; |
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94 | }; |
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95 | #define request_prologue_t struct request_prologue |
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96 | |||
97 | int bqueue_init(bqueue_t *); |
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98 | int bqueue_numelements(bqueue_t *); |
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99 | int bqueue_insertrequest(bqueue_t *, struct request_prologue *); |
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100 | struct request_prologue *bqueue_getrequest(bqueue_t *); |
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101 | int bqueue_removerequest(bqueue_t *); |
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80 | pj | 102 | __END_DECLS |
2 | pj | 103 | #endif |