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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 | |||
23 | CVS : $Id: phdsk.c,v 1.1.1.1 2002-03-29 14:12:49 pj Exp $ |
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24 | |||
25 | Revision: $Revision: 1.1.1.1 $ |
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26 | |||
27 | Last update: $Date: 2002-03-29 14:12:49 $ |
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28 | |||
29 | This module register every physical disk into the system |
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30 | (actually only for informational purpose). |
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31 | |||
32 | ***************************************/ |
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33 | |||
34 | /* |
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35 | * Copyright (C) 1999 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 | #include "glue.h" |
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54 | #include <fs/magic.h> |
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55 | |||
56 | #include "phdsk.h" |
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57 | |||
58 | /*+ an entry for every hard disk into the system +*/ |
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59 | static struct phdskinfo phdsk[MAXPHDSK]; |
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60 | |||
61 | /*++++++++++++++++++++++++++++++++++++++ |
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62 | |||
63 | Initialize the interal data structures. Must be called prior of every |
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64 | routine in this module. |
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65 | |||
66 | ++++++++++++++++++++++++++++++++++++++*/ |
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67 | |||
68 | void phdsk_init(void) |
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69 | { |
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70 | int i; |
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71 | for (i=0;i<MAXPHDSK;i++) { |
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72 | |||
73 | #ifdef _PARANOIA |
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74 | phdsk[i].magic=PHDSK_MAGIC; |
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75 | #endif |
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76 | |||
77 | memcpy(phdsk[i].pd_name,"noname",7); |
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78 | |||
79 | phdsk[i].pd_device=0; |
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80 | phdsk[i].pd_size=0; |
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81 | phdsk[i].pd_sectsize=0; |
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82 | |||
83 | #ifdef IDE_BLOCK_DEVICE |
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84 | phdsk[i].pd_ide_check_geom=0; |
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85 | #endif |
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86 | |||
87 | phdsk[i].pd_phgeom.cyls=0; |
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88 | phdsk[i].pd_phgeom.heads=0; |
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89 | phdsk[i].pd_phgeom.sectors=0; |
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90 | |||
91 | phdsk[i].pd_logeom.cyls=0; |
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92 | phdsk[i].pd_logeom.heads=0; |
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93 | phdsk[i].pd_logeom.sectors=0; |
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94 | } |
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95 | } |
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96 | |||
97 | /*++++++++++++++++++++++++++++++++++++++ |
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98 | |||
99 | Every block device module shall call this function to inform |
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100 | the system that a physical hard-disk in available to the system. |
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101 | |||
102 | struct phdskinfo *phdsk_register |
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103 | return a pointer to a phdskinfo structure that hold hard disk information |
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104 | or NULL in case of error |
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105 | |||
106 | struct phdskinfo *disk |
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107 | information on the physical hard disk |
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108 | ++++++++++++++++++++++++++++++++++++++*/ |
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109 | |||
110 | struct phdskinfo *phdsk_register(struct phdskinfo *disk) |
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111 | { |
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112 | int i; |
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113 | |||
114 | for (i=0;i<MAXPHDSK;i++) |
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115 | if (phdsk[i].pd_device==0) break; |
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116 | if (i==MAXPHDSK||disk->pd_device==0) return NULL; |
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117 | |||
118 | //cprintf("pdisk dev %i\n",disk->pd_device); |
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119 | memcpy(phdsk+i,disk,sizeof(struct phdskinfo)); |
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120 | //cprintf("pdisk dev %i\n",(phdsk+i)->pd_device); |
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121 | |||
122 | return phdsk+i; |
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123 | } |