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1159 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; Copyright (C) KolibriOS team 2004-2008. All rights reserved. ;; |
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4 | ;; Distributed under terms of the GNU General Public License ;; |
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5 | ;; ;; |
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6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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7 | |||
1206 | hidnplayr | 8 | $Revision: 1206 $ |
1159 | hidnplayr | 9 | |
10 | |||
11 | ;**************************************************** |
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12 | ; поиск логических дисков на обнаруженных HDD |
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13 | ; и занесение данных в область таблицы |
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14 | ; автор Mario79 |
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15 | ;**************************************************** |
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16 | mov [transfer_adress],DRIVE_DATA+0xa |
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17 | search_partitions_ide0: |
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18 | test [DRIVE_DATA+1],byte 0x40 |
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19 | jz search_partitions_ide1 |
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20 | mov [hdbase],0x1f0 |
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21 | mov [hdid],0x0 |
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22 | mov [hdpos],1 |
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23 | mov [fat32part],1 |
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24 | search_partitions_ide0_1: |
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25 | call set_FAT32_variables |
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26 | cmp [problem_partition],0 |
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27 | jne search_partitions_ide1 |
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28 | inc byte [DRIVE_DATA+2] |
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29 | call partition_data_transfer |
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30 | add [transfer_adress],100 |
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31 | inc [fat32part] |
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32 | jmp search_partitions_ide0_1 |
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33 | |||
34 | search_partitions_ide1: |
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35 | test [DRIVE_DATA+1],byte 0x10 |
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36 | jz search_partitions_ide2 |
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37 | mov [hdbase],0x1f0 |
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38 | mov [hdid],0x10 |
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39 | mov [hdpos],2 |
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40 | mov [fat32part],1 |
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41 | search_partitions_ide1_1: |
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42 | call set_FAT32_variables |
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43 | cmp [problem_partition],0 |
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44 | jne search_partitions_ide2 |
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45 | inc byte [DRIVE_DATA+3] |
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46 | call partition_data_transfer |
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47 | add [transfer_adress],100 |
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48 | inc [fat32part] |
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49 | jmp search_partitions_ide1_1 |
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50 | |||
51 | search_partitions_ide2: |
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52 | test [DRIVE_DATA+1],byte 0x4 |
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53 | jz search_partitions_ide3 |
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54 | mov [hdbase],0x170 |
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55 | mov [hdid],0x0 |
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56 | mov [hdpos],3 |
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57 | mov [fat32part],1 |
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58 | search_partitions_ide2_1: |
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59 | call set_FAT32_variables |
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60 | cmp [problem_partition],0 |
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61 | jne search_partitions_ide3 |
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62 | inc byte [DRIVE_DATA+4] |
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63 | call partition_data_transfer |
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64 | add [transfer_adress],100 |
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65 | inc [fat32part] |
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66 | jmp search_partitions_ide2_1 |
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67 | |||
68 | search_partitions_ide3: |
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69 | test [DRIVE_DATA+1],byte 0x1 |
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70 | jz end_search_partitions_ide |
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71 | mov [hdbase],0x170 |
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72 | mov [hdid],0x10 |
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73 | mov [hdpos],4 |
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74 | mov [fat32part],1 |
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75 | search_partitions_ide3_1: |
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76 | call set_FAT32_variables |
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77 | cmp [problem_partition],0 |
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78 | jne end_search_partitions_ide |
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79 | inc byte [DRIVE_DATA+5] |
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80 | call partition_data_transfer |
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81 | add [transfer_adress],100 |
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82 | inc [fat32part] |
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83 | jmp search_partitions_ide3_1 |
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84 | |||
85 | end_search_partitions_ide: |
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86 | mov [hdpos], 80h |
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87 | mov ecx, [NumBiosDisks] |
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88 | test ecx, ecx |
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89 | jz end_search_partitions |
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90 | start_search_partitions_bd: |
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91 | push ecx |
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92 | mov eax, [hdpos] |
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93 | and [BiosDiskPartitions+(eax-80h)*4], 0 |
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94 | mov [fat32part], 1 |
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95 | search_partitions_bd: |
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96 | call set_FAT32_variables |
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97 | cmp [problem_partition], 0 |
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98 | jne end_search_partitions_bd |
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99 | mov eax, [hdpos] |
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100 | inc [BiosDiskPartitions+(eax-80h)*4] |
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101 | call partition_data_transfer |
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102 | add [transfer_adress], 100 |
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103 | inc [fat32part] |
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104 | jmp search_partitions_bd |
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105 | end_search_partitions_bd: |
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106 | pop ecx |
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107 | inc [hdpos] |
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108 | loop start_search_partitions_bd |
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109 | jmp end_search_partitions |
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110 | |||
111 | partition_data_transfer: |
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112 | mov edi,[transfer_adress] |
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113 | mov esi,PARTITION_START |
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114 | mov ecx,(file_system_data_size+3)/4 |
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115 | rep movsd |
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116 | ret |
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117 | uglobal |
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118 | transfer_adress dd 0 |
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119 | endg |
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120 | partition_data_transfer_1: |
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121 | ; cli |
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122 | push edi |
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123 | mov edi,PARTITION_START |
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124 | mov esi,[transfer_adress] |
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125 | mov ecx,(file_system_data_size+3)/4 |
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126 | rep movsd |
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127 | pop edi |
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128 | ; sti |
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129 | ret |
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130 | |||
131 | end_search_partitions: |
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132 | |||
133 | ;PARTITION_START dd 0x3f |
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134 | ;PARTITION_END dd 0 |
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135 | ;SECTORS_PER_FAT dd 0x1f3a |
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136 | ;NUMBER_OF_FATS dd 0x2 |
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137 | ;SECTORS_PER_CLUSTER dd 0x8 |
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138 | ;BYTES_PER_SECTOR dd 0x200 ; Note: if BPS <> 512 need lots of changes |
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139 | ;ROOT_CLUSTER dd 2 ; first rootdir cluster |
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140 | ;FAT_START dd 0 ; start of fat table |
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141 | ;ROOT_START dd 0 ; start of rootdir (only fat16) |
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142 | ;ROOT_SECTORS dd 0 ; count of rootdir sectors (only fat16) |
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143 | ;DATA_START dd 0 ; start of data area (=first cluster 2) |
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144 | ;LAST_CLUSTER dd 0 ; last availabe cluster |
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145 | ;ADR_FSINFO dd 0 ; used only by fat32 |
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146 | ; |
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147 | ;fatRESERVED dd 0x0FFFFFF6 |
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148 | ;fatBAD dd 0x0FFFFFF7 |
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149 | ;fatEND dd 0x0FFFFFF8 |
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150 | ;fatMASK dd 0x0FFFFFFF |
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151 | ; |
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152 | ;fat_type db 0 ; 0=none, 16=fat16, 32=fat32> |
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153 |