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Rev | Author | Line No. | Line |
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1 | ha | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; System service for filesystem call ;; |
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4 | ;; (C) 2004 Ville Turjanmaa, License: GPL ;; |
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5 | ;; ;; |
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71 | diamond | 6 | ;; xx.04.2006 LFN support - diamond ;; |
1 | ha | 7 | ;; 15.01.2005 get file size/attr/date, file_append (only for hd) - ATV ;; |
8 | ;; 23.11.2004 test if hd/partition is set - ATV ;; |
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9 | ;; 18.11.2004 get_disk_info and more error codes - ATV ;; |
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10 | ;; 08.11.2004 expand_pathz and rename (only for hd) - ATV ;; |
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11 | ;; 20.10.2004 Makedir/Removedir (only for hd) - ATV ;; |
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12 | ;; ;; |
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13 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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14 | |||
15 | iglobal |
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16 | dir0: db 'HARDDISK ' |
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17 | db 'RAMDISK ' |
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18 | db 'FLOPPYDISK ' |
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19 | db 0 |
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20 | |||
21 | dir1: db 'FIRST ' |
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22 | db 'SECOND ' |
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23 | db 'THIRD ' |
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24 | db 'FOURTH ' |
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25 | db 0 |
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26 | |||
27 | not_select_IDE db 0 |
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28 | |||
29 | hd_address_table: dd 0x1f0,0x00,0x1f0,0x10 |
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30 | dd 0x170,0x00,0x170,0x10 |
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31 | endg |
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32 | |||
33 | file_system: |
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34 | ; IN: |
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35 | ; |
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36 | ; eax = 0 ; read file /RamDisk/First 6 /HardDisk/First 30 |
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37 | ; eax = 1 ; write file /RamDisk/First 33 /HardDisk/First 56 |
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38 | ; eax = 2 ; delete file /RamDisk/First 32 /HardDisk/First 57 |
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39 | ; eax = 3 ; append to a file /RamDisk/First ?? /HardDisk/First ?? |
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40 | ; eax = 4 ; makedir |
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41 | ; eax = 5 ; rename file/directory |
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42 | ; eax = 8 ; lba read |
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43 | ; eax = 12 ; get_filesize |
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44 | ; eax = 13 ; get_fileattr |
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45 | ; eax = 14 ; get_filedate |
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46 | ; eax = 15 ; get_disk_info |
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47 | ; eax = 16 ; start application |
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48 | ; |
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49 | ; OUT: |
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50 | ; |
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51 | ; eax = 0 : read ok |
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61 | halyavin | 52 | ; eax = 1 : no hd base and/or partition defined |
71 | diamond | 53 | ; eax = 2 : function is unsupported for this FS |
1 | ha | 54 | ; eax = 3 : unknown FS |
55 | ; eax = 4 : partition not defined at hd |
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56 | ; eax = 5 : file not found |
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57 | ; eax = 6 : end of file |
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58 | ; eax = 7 : memory pointer not in application area |
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59 | ; eax = 8 : disk full |
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60 | ; eax = 9 : fat table corrupted |
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61 | ; eax = 10 : access denied |
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62 | ; |
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63 | ; ebx = size |
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64 | |||
61 | halyavin | 65 | ; \begin{diamond}[18.03.2006] |
66 | ; for subfunction 16 (start application) error codes must be negative |
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64 | mario79 | 67 | ; because positive values are valid PIDs |
61 | halyavin | 68 | ; so possible return values are: |
69 | ; eax > 0 : process created, eax=PID |
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70 | |||
71 | ; -0x10 <= eax < 0 : -eax is filesystem error code: |
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72 | ; eax = -1 = 0xFFFFFFFF : no hd base and/or partition defined |
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73 | ; eax = -3 = 0xFFFFFFFD : unknown FS |
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74 | ; eax = -5 = 0xFFFFFFFB : file not found |
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75 | ; eax = -6 = 0xFFFFFFFA : unexpected end of file (probably not executable file) |
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76 | ; eax = -9 = 0xFFFFFFF7 : fat table corrupted |
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77 | ; eax = -10 = 0xFFFFFFF6 : access denied |
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78 | |||
79 | ; -0x20 <= eax < -0x10: eax is process creation error code: |
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80 | ; eax = -0x20 = 0xFFFFFFE0 : too many processes |
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81 | ; eax = -0x1F = 0xFFFFFFE1 : not Menuet/Kolibri executable |
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82 | ; eax = -0x1E = 0xFFFFFFE2 : no memory |
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83 | |||
84 | ; ebx is not changed |
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85 | |||
86 | ; \end{diamond}[18.03.2006] |
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87 | |||
1 | ha | 88 | ; Extract parameters |
64 | mario79 | 89 | add eax, std_application_base_address ; abs start of info block |
71 | diamond | 90 | ; \begin{diamond} |
91 | cmp byte [eax+1], 1 |
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92 | jz file_system_lfn |
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93 | ; \end{diamond} |
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1 | ha | 94 | |
95 | cmp dword [eax+0],12 ; Get file size |
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96 | je fs_read |
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97 | cmp dword [eax+0],13 ; Get file attribute |
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98 | je fs_read |
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99 | cmp dword [eax+0],14 ; Get file date/time |
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100 | je fs_read |
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101 | cmp dword [eax+0],15 ; GET_DISK_INFO |
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102 | je fs_info |
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103 | cmp dword [eax+0],16 ; RUN - dont care about read&write blocks |
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104 | je fs_read |
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105 | cmp dword [eax+0],5 ; RENAME - dont care about read&write blocks |
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106 | je fs_read |
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107 | cmp dword [eax+0],4 ; MAKEDIR - dont care about read&write blocks |
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108 | je fs_read |
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109 | cmp dword [eax+0],2 ; DELETE - dont care about read&write blocks |
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110 | je fs_read |
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111 | |||
112 | cmp dword [0x3000],1 ; no memory checks for kernel requests |
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113 | jz no_checks_for_kernel |
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114 | mov edx,eax |
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115 | cmp dword [eax+0],1 |
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116 | jz .check_for_write_op |
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117 | cmp dword [eax+0],3 |
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118 | jnz .usual_check |
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119 | .check_for_write_op: |
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120 | mov ebx,[eax+12] |
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121 | add ebx,std_application_base_address |
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122 | mov ecx,[eax+8] |
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123 | call check_region |
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124 | test eax,eax |
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125 | jnz area_in_app_mem |
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126 | |||
127 | .error_output: |
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128 | mov esi,buffer_failed |
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129 | call sys_msg_board_str |
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61 | halyavin | 130 | ; mov eax,7 |
1 | ha | 131 | mov dword [esp+36],7 |
132 | ret |
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133 | iglobal |
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61 | halyavin | 134 | buffer_failed db 'K : Buffer check failed',13,10,0 |
1 | ha | 135 | endg |
136 | .usual_check: |
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137 | cmp dword [eax+0],0 |
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138 | mov ecx,512 |
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139 | jnz .small_size |
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140 | mov ecx,[eax+8] |
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141 | shl ecx,9 |
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142 | .small_size: |
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143 | mov ebx,[eax+12] |
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144 | add ebx,std_application_base_address |
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145 | call check_region |
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146 | test eax,eax |
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147 | jz .error_output |
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148 | area_in_app_mem: |
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149 | mov eax,edx |
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150 | no_checks_for_kernel: |
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151 | |||
152 | |||
153 | cmp dword [eax+0],3 ; APPEND - allow write 0 bytes (truncate) |
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154 | je fs_read |
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155 | cmp dword [eax+8],0 ; read or write 0 blocks/bytes ? |
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156 | jne fs_read |
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61 | halyavin | 157 | and dword [esp+36],0 |
1 | ha | 158 | ret |
159 | fs_read: |
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160 | |||
161 | mov ebx,[eax+20] ; program wants root directory ? |
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162 | test bl,bl |
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163 | je fs_getroot |
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164 | test bh,bh |
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165 | jne fs_noroot |
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166 | fs_getroot: |
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61 | halyavin | 167 | ; \begin{diamond}[18.03.2006] |
168 | ; root - only read is allowed |
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169 | ; other operations return "access denied", eax=10 |
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170 | ; (execute operation returns eax=-10) |
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64 | mario79 | 171 | cmp dword [eax], 0 |
172 | jz .read_root |
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173 | mov ecx, 10 |
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174 | cmp dword [eax], 16 |
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175 | jnz @f |
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176 | neg ecx |
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177 | @@: mov [esp+36], ecx |
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178 | ret |
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61 | halyavin | 179 | .read_root: |
180 | ; \end{diamond}[18.03.2006] |
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1 | ha | 181 | mov esi,dir0 |
182 | mov edi,[eax+12] |
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61 | halyavin | 183 | add edi,std_application_base_address |
1 | ha | 184 | mov ecx,11 |
61 | halyavin | 185 | push ecx |
64 | mario79 | 186 | ; cld ; already is |
1 | ha | 187 | rep movsb |
61 | halyavin | 188 | mov al,0x10 |
1 | ha | 189 | stosb |
190 | add edi,32-11-1 |
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61 | halyavin | 191 | pop ecx |
1 | ha | 192 | rep movsb |
193 | stosb |
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61 | halyavin | 194 | and dword [esp+36],0 ; ok read |
1 | ha | 195 | mov dword [esp+24],32*2 ; size of root |
196 | ret |
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197 | |||
198 | fs_info: ;start of code - Mihasik |
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61 | halyavin | 199 | push eax |
1 | ha | 200 | cmp [eax+21],byte 'h' |
201 | je fs_info_h |
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202 | cmp [eax+21],byte 'H' |
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203 | je fs_info_h |
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204 | cmp [eax+21],byte 'r' |
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205 | je fs_info_r |
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206 | cmp [eax+21],byte 'R' |
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207 | je fs_info_r |
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208 | mov eax,3 ;if unknown disk |
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209 | xor ebx,ebx |
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210 | xor ecx,ecx |
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211 | xor edx,edx |
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212 | jmp fs_info1 |
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213 | fs_info_r: |
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214 | call ramdisk_free_space ;if ramdisk |
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215 | mov ecx,edi ;free space in ecx |
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216 | shr ecx,9 ;free clusters |
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217 | mov ebx,2847 ;total clusters |
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218 | mov edx,512 ;cluster size |
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219 | xor eax,eax ;always 0 |
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220 | jmp fs_info1 |
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221 | fs_info_h: ;if harddisk |
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222 | call get_hd_info |
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223 | fs_info1: |
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224 | pop edi |
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225 | mov [esp+36],eax |
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226 | mov [esp+24],ebx ; total clusters on disk |
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227 | mov [esp+32],ecx ; free clusters on disk |
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228 | mov [edi],edx ; cluster size in bytes |
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229 | ret ;end of code - Mihasik |
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230 | |||
231 | fs_noroot: |
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232 | |||
61 | halyavin | 233 | push dword [eax+0] ; read/write/delete/.../makedir/rename/lba/run |
234 | push dword [eax+4] ; 512 block number to read |
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235 | push dword [eax+8] ; bytes to write/append or 512 blocks to read |
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1 | ha | 236 | mov ebx,[eax+12] |
61 | halyavin | 237 | add ebx,std_application_base_address |
1 | ha | 238 | push ebx ; abs start of return/save area |
239 | |||
240 | lea esi,[eax+20] ; abs start of dir + filename |
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61 | halyavin | 241 | mov edi,[eax+16] |
64 | mario79 | 242 | add edi,std_application_base_address ; abs start of work area |
1 | ha | 243 | |
244 | call expand_pathz |
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245 | |||
246 | push edi ; dir start |
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247 | push ebx ; name of file start |
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248 | |||
249 | mov eax,[edi+1] |
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250 | cmp eax,'RD ' |
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251 | je fs_yesramdisk |
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61 | halyavin | 252 | cmp eax,'RAMD' |
1 | ha | 253 | jne fs_noramdisk |
254 | |||
255 | fs_yesramdisk: |
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256 | |||
257 | cmp byte [edi+1+11],0 |
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258 | je fs_give_dir1 |
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259 | |||
260 | mov eax,[edi+1+12] |
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261 | cmp eax,'1 ' |
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262 | je fs_yesramdisk_first |
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61 | halyavin | 263 | cmp eax,'FIRS' |
1 | ha | 264 | jne fs_noramdisk |
265 | |||
266 | fs_yesramdisk_first: |
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267 | |||
268 | cmp dword [esp+20],8 ; LBA read ramdisk |
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269 | jne fs_no_LBA_read_ramdisk |
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270 | |||
271 | mov eax,[esp+16] ; LBA block to read |
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272 | mov ecx,[esp+8] ; abs pointer to return area |
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273 | |||
274 | call LBA_read_ramdisk |
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275 | jmp file_system_return |
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276 | |||
277 | |||
278 | fs_no_LBA_read_ramdisk: |
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279 | |||
280 | cmp dword [esp+20],0 ; READ |
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281 | jne fs_noramdisk_read |
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282 | |||
283 | mov eax,[esp+4] ; fname |
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284 | add eax,2*12+1 |
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285 | mov ebx,[esp+16] ; block start |
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286 | inc ebx |
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287 | mov ecx,[esp+12] ; block count |
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288 | mov edx,[esp+8] ; return |
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289 | mov esi,[esp+0] |
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290 | sub esi,eax |
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291 | add esi,12+1 ; file name length |
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292 | call fileread |
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293 | |||
294 | jmp file_system_return |
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295 | |||
296 | |||
297 | fs_noramdisk_read: |
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298 | |||
299 | cmp dword [esp+20],1 ; WRITE |
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300 | jne fs_noramdisk_write |
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301 | |||
302 | mov eax,[esp+4] ; fname |
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303 | add eax,2*12+1 |
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304 | mov ebx,[esp+8] ; buffer |
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305 | mov ecx,[esp+12] ; count to write |
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306 | mov edx,0 ; create new |
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307 | call filesave |
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308 | |||
309 | ; eax=0 ok - eax=1 not enough free space |
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310 | |||
311 | jmp file_system_return |
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312 | |||
313 | fs_noramdisk_write: |
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314 | |||
315 | cmp dword [esp+20],16 ; START APPLICATION |
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316 | jne fs_noramdisk_start_application |
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317 | |||
318 | mov eax,[esp+4] ; fname |
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319 | add eax,2*12+1 |
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320 | |||
321 | xor ebx,ebx ; parameters to pass |
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61 | halyavin | 322 | cmp dword [esp+12],ebx;0 |
1 | ha | 323 | je no_fl_start_param |
61 | halyavin | 324 | mov ebx, [esp+12] |
325 | add ebx, std_application_base_address |
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1 | ha | 326 | no_fl_start_param: |
64 | mario79 | 327 | mov edx,[esp+16] ; flags |
1 | ha | 328 | |
329 | call start_application_fl |
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330 | |||
61 | halyavin | 331 | jmp file_system_startapp_return |
1 | ha | 332 | |
333 | fs_noramdisk_start_application: ;there's new code - Mihasik |
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334 | cmp dword [esp+20],2 ;DELETE |
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335 | jne fs_noramdisk_delete |
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336 | mov eax,[esp+4] ; fname |
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337 | add eax,2*12+1 |
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338 | call filedelete |
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339 | jmp file_system_return |
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340 | |||
341 | fs_noramdisk_delete: |
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342 | cmp dword [esp+20],12 ;GET TIME,DATE,SIZE AND ATTRS |
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343 | jb fs_noramdisk_getinfo |
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344 | cmp dword [esp+20],14 |
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345 | ja fs_noramdisk_getinfo |
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346 | mov eax,[esp+4] ; fname |
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347 | add eax,2*12+1 |
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348 | mov ebx,[esp+20] |
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349 | mov ecx,[esp+0] |
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350 | sub ecx,eax |
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351 | add ecx,12+1 ; file name length |
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352 | call rd_getfileinfo |
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353 | jmp file_system_return |
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354 | fs_noramdisk_getinfo: ;End of code - Mihasik |
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355 | |||
356 | fs_noramdisk: |
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357 | |||
358 | ;******************************************************************** |
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359 | mov eax,[edi+1] |
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360 | cmp eax,'FD ' |
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361 | je fs_yesflpdisk |
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61 | halyavin | 362 | cmp eax,'FLOP' |
1 | ha | 363 | jne fs_noflpdisk |
364 | |||
365 | fs_yesflpdisk: |
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366 | call reserve_flp |
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367 | |||
368 | cmp byte [edi+1+11],0 |
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369 | je fs_give_dir1 |
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370 | |||
371 | mov eax,[edi+1+12] |
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372 | cmp eax,'1 ' |
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373 | je fs_yesflpdisk_first |
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61 | halyavin | 374 | cmp eax,'FIRS' |
1 | ha | 375 | je fs_yesflpdisk_first |
376 | cmp eax,'2 ' |
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377 | je fs_yesflpdisk_second |
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61 | halyavin | 378 | cmp eax,'SECO' |
1 | ha | 379 | jne fs_noflpdisk |
380 | jmp fs_yesflpdisk_second |
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381 | |||
382 | fs_yesflpdisk_first: |
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383 | mov [flp_number],1 |
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384 | jmp fs_yesflpdisk_start |
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385 | fs_yesflpdisk_second: |
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386 | mov [flp_number],2 |
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387 | fs_yesflpdisk_start: |
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388 | cmp dword [esp+20],0 ; READ |
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389 | jne fs_noflpdisk_read |
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390 | |||
391 | mov eax,[esp+4] ; fname |
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392 | add eax,2*12+1 |
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393 | mov ebx,[esp+16] ; block start |
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394 | inc ebx |
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395 | mov ecx,[esp+12] ; block count |
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396 | mov edx,[esp+8] ; return |
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397 | mov esi,[esp+0] |
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398 | sub esi,eax |
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399 | add esi,12+1 ; file name length |
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400 | call floppy_fileread |
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401 | |||
402 | jmp file_system_return |
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403 | |||
404 | |||
405 | fs_noflpdisk_read: |
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406 | |||
407 | cmp dword [esp+20],1 ; WRITE |
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408 | jne fs_noflpdisk_write |
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409 | |||
410 | mov eax,[esp+4] ; fname |
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411 | add eax,2*12+1 |
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412 | mov ebx,[esp+8] ; buffer |
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413 | mov ecx,[esp+12] ; count to write |
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414 | mov edx,0 ; create new |
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415 | call floppy_filesave |
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416 | |||
417 | ; eax=0 ok - eax=1 not enough free space |
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418 | |||
419 | jmp file_system_return |
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420 | |||
421 | fs_noflpdisk_write: |
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422 | |||
423 | cmp dword [esp+20],2 ; DELETE |
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424 | jne fs_noflpdisk_delete |
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425 | |||
426 | mov eax,[esp+4] ; fname |
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427 | add eax,2*12+1 |
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428 | call floppy_filedelete |
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429 | mov [flp_status],0 |
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430 | jmp file_system_return |
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431 | |||
432 | fs_noflpdisk_delete: |
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433 | cmp dword [esp+20],16 ; START APPLICATION |
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434 | jne fs_noflpdisk_start_application |
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435 | |||
436 | mov eax,[esp+4] ; fname |
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437 | add eax,2*12+1 |
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438 | |||
439 | xor ebx,ebx ; parameters to pass |
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61 | halyavin | 440 | cmp dword [esp+12],ebx;0 |
1 | ha | 441 | je no_flp_start_param |
442 | mov ebx,[0x3010] |
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443 | mov ebx,[ebx+0x10] |
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444 | add ebx,[esp+12] |
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445 | |||
446 | no_flp_start_param: |
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64 | mario79 | 447 | mov edx,[esp+16] ; flags |
1 | ha | 448 | |
449 | call start_application_floppy |
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450 | |||
61 | halyavin | 451 | file_system_startapp_return: |
64 | mario79 | 452 | mov ebx, [esp+24+24] ; do not modify ebx in application |
1 | ha | 453 | jmp file_system_return |
454 | |||
455 | fs_noflpdisk_start_application: |
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456 | |||
457 | fs_noflpdisk: |
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458 | ;***************************************************************** |
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459 | |||
460 | mov eax,[edi+1] |
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461 | cmp eax,'HD0 ' |
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462 | je fs_yesharddisk_IDE0 |
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463 | cmp eax,'HD1 ' |
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464 | je fs_yesharddisk_IDE1 |
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465 | cmp eax,'HD2 ' |
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466 | je fs_yesharddisk_IDE2 |
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467 | cmp eax,'HD3 ' |
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468 | je fs_yesharddisk_IDE3 |
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469 | jmp old_path_harddisk |
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470 | fs_yesharddisk_IDE0: |
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471 | call reserve_hd1 |
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472 | mov [hdbase],0x1f0 |
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473 | mov [hdid],0x0 |
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474 | mov [hdpos],1 |
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475 | jmp fs_yesharddisk_partition |
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476 | fs_yesharddisk_IDE1: |
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477 | call reserve_hd1 |
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478 | mov [hdbase],0x1f0 |
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479 | mov [hdid],0x10 |
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480 | mov [hdpos],2 |
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481 | jmp fs_yesharddisk_partition |
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482 | fs_yesharddisk_IDE2: |
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483 | call reserve_hd1 |
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484 | mov [hdbase],0x170 |
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485 | mov [hdid],0x0 |
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486 | mov [hdpos],3 |
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487 | jmp fs_yesharddisk_partition |
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488 | fs_yesharddisk_IDE3: |
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489 | call reserve_hd1 |
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490 | mov [hdbase],0x170 |
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491 | mov [hdid],0x10 |
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492 | mov [hdpos],4 |
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493 | fs_yesharddisk_partition: |
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494 | ; call choice_necessity_partition |
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495 | ; jmp fs_yesharddisk_all |
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496 | jmp fs_for_new_semantic |
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497 | |||
498 | choice_necessity_partition: |
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499 | mov eax,[edi+1+12] |
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500 | call StringToNumber |
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501 | mov [fat32part],eax |
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502 | choice_necessity_partition_1: |
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503 | mov ecx,[hdpos] |
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504 | xor eax,eax |
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61 | halyavin | 505 | mov [0xfe10], eax ; entries in hd cache |
1 | ha | 506 | mov edx,0x40002 |
507 | search_partition_array: |
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508 | mov bl,[edx] |
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509 | movzx ebx,bl |
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510 | add eax,ebx |
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511 | inc edx |
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512 | loop search_partition_array |
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513 | sub eax,ebx |
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514 | add eax,[fat32part] |
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515 | dec eax |
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516 | xor edx,edx |
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517 | imul eax,100 |
||
518 | add eax,0x4000a |
||
519 | mov [transfer_adress],eax |
||
520 | call partition_data_transfer_1 |
||
521 | ret |
||
522 | |||
523 | old_path_harddisk: |
||
524 | mov eax,[edi+1] |
||
525 | cmp eax,'HD ' |
||
526 | je fs_yesharddisk |
||
61 | halyavin | 527 | cmp eax,'HARD' |
1 | ha | 528 | jne fs_noharddisk |
529 | |||
530 | fs_yesharddisk: |
||
531 | cmp dword [esp+20],8 ; LBA read |
||
532 | jne fs_no_LBA_read |
||
533 | mov eax,[esp+16] ; LBA block to read |
||
534 | lea ebx,[edi+1+12] ; pointer to FIRST/SECOND/THIRD/FOURTH |
||
535 | mov ecx,[esp+8] ; abs pointer to return area |
||
536 | call LBA_read |
||
537 | jmp file_system_return |
||
538 | |||
539 | fs_no_LBA_read: |
||
540 | |||
541 | cmp byte [edi+1+11],0 ; directory read |
||
542 | je fs_give_dir1 |
||
63 | halyavin | 543 | call reserve_hd1 |
1 | ha | 544 | fs_for_new_semantic: |
545 | call choice_necessity_partition |
||
546 | |||
547 | fs_yesharddisk_all: |
||
548 | mov eax,1 |
||
64 | mario79 | 549 | cmp dword [esp+20], 16 |
550 | jnz @f |
||
551 | neg eax |
||
552 | @@: mov ebx, [esp+24+24] |
||
1 | ha | 553 | cmp [hdpos],0 ; is hd base set? |
63 | halyavin | 554 | jz hd_err_return |
1 | ha | 555 | cmp [fat32part],0 ; is partition set? |
63 | halyavin | 556 | jnz @f |
557 | hd_err_return: |
||
558 | and [hd1_status], 0 |
||
559 | jmp file_system_return |
||
560 | @@: |
||
1 | ha | 561 | |
562 | cmp dword [esp+20],0 ; READ |
||
563 | jne fs_noharddisk_read |
||
564 | |||
565 | mov eax,[esp+0] ; /fname |
||
566 | lea edi,[eax+12] |
||
567 | mov byte [eax],0 ; path to asciiz |
||
568 | inc eax ; filename start |
||
569 | |||
570 | mov ebx,[esp+12] ; count to read |
||
571 | mov ecx,[esp+8] ; buffer |
||
572 | mov edx,[esp+4] |
||
573 | add edx,12*2 ; dir start |
||
574 | sub edi,edx ; path length |
||
575 | mov esi,[esp+16] ; blocks to read |
||
576 | |||
577 | call file_read |
||
578 | |||
579 | mov edi,[esp+0] |
||
580 | mov byte [edi],'/' |
||
581 | |||
582 | jmp file_system_return |
||
583 | |||
584 | fs_noharddisk_read: |
||
585 | |||
586 | |||
587 | cmp dword [esp+20],1 ; WRITE |
||
588 | jne fs_noharddisk_write |
||
589 | |||
590 | mov eax,[esp+0] ; /fname |
||
591 | mov byte [eax],0 ; path to asciiz |
||
592 | inc eax ; filename start |
||
593 | |||
594 | mov ebx,[esp+12] ; count to write |
||
595 | mov ecx,[esp+8] ; buffer |
||
596 | mov edx,[esp+4] |
||
597 | add edx,12*2 ; path start |
||
598 | |||
599 | call file_write |
||
600 | |||
601 | mov edi,[esp+0] |
||
602 | mov byte [edi],'/' |
||
603 | |||
604 | ; eax=0 ok - eax=1 not enough free space |
||
605 | |||
606 | jmp file_system_return |
||
607 | |||
608 | |||
609 | fs_noharddisk_write: |
||
610 | |||
611 | cmp dword [esp+20],2 ; DELETE |
||
612 | jne fs_noharddisk_delete |
||
613 | |||
614 | mov eax,[esp+0] ; /dirname or /filename |
||
615 | mov byte [eax],0 ; path to asciiz |
||
616 | inc eax ; filename start |
||
617 | mov edx,[esp+4] |
||
618 | add edx,12*2 ; path start |
||
619 | |||
620 | call removedir |
||
621 | |||
622 | mov edi,[esp+0] |
||
623 | mov byte [edi],'/' |
||
624 | |||
625 | jmp file_system_return |
||
626 | |||
627 | fs_noharddisk_delete: |
||
628 | |||
629 | cmp dword [esp+20],3 ; APPEND |
||
630 | jne fs_noharddisk_append |
||
631 | |||
632 | mov eax,[esp+0] ; /dirname or /filename |
||
633 | mov byte [eax],0 ; path to asciiz |
||
634 | inc eax ; filename start |
||
635 | mov edx,[esp+4] |
||
636 | add edx,12*2 ; path start |
||
637 | mov ecx,[esp+8] ; buffer |
||
638 | mov ebx,[esp+12] ; count to write |
||
639 | mov esi,[esp+16] ; bytes to skip over |
||
640 | |||
641 | call file_append |
||
642 | |||
643 | mov edi,[esp+0] |
||
644 | mov byte [edi],'/' |
||
645 | |||
646 | jmp file_system_return |
||
647 | |||
648 | fs_noharddisk_append: |
||
649 | |||
650 | cmp dword [esp+20],4 ; MAKEDIR |
||
651 | jne fs_noharddisk_makedir |
||
652 | |||
653 | mov eax,[esp+0] ; /dirname |
||
654 | mov byte [eax],0 ; path to asciiz |
||
655 | inc eax ; filename start |
||
656 | mov edx,[esp+4] |
||
657 | add edx,12*2 ; path start |
||
658 | |||
659 | call makedir |
||
660 | |||
661 | mov edi,[esp+0] |
||
662 | mov byte [edi],'/' |
||
663 | |||
664 | jmp file_system_return |
||
665 | |||
666 | fs_noharddisk_makedir: |
||
667 | |||
668 | cmp dword [esp+20],5 ; RENAME |
||
669 | jne fs_noharddisk_rename |
||
670 | |||
671 | mov edi,[esp+0] ; start of source file name |
||
672 | add edi,12+1 ; continue after name |
||
673 | call expand_pathz ; convert destination name |
||
674 | |||
675 | mov eax,[edi+1] |
||
676 | cmp eax,'HD ' |
||
677 | je fs_rename_test1 |
||
61 | halyavin | 678 | cmp eax,'HARD' |
1 | ha | 679 | jne fs_rename_error |
680 | |||
681 | fs_rename_test1: |
||
682 | mov eax,[edi+1+12] |
||
683 | cmp eax,'1 ' |
||
684 | je fs_rename_start |
||
61 | halyavin | 685 | cmp eax,'FIRS' |
1 | ha | 686 | jne fs_rename_error |
687 | |||
688 | fs_rename_start: |
||
689 | mov byte [ebx],0 ; path to asciiz |
||
690 | inc ebx ; filename start |
||
691 | add edi,12*2 ; path start |
||
692 | cmp byte [ebx],0 |
||
693 | je fs_rename_error |
||
694 | cmp byte [ebx],32 |
||
695 | je fs_rename_error |
||
696 | |||
697 | mov eax,[esp+0] ; /filename |
||
698 | mov byte [eax],0 ; path to asciiz |
||
699 | inc eax ; filename start |
||
700 | mov edx,[esp+4] |
||
701 | add edx,12*2 ; path start |
||
702 | |||
703 | call rename |
||
704 | |||
705 | mov edi,[esp+0] |
||
706 | mov byte [edi],'/' |
||
707 | |||
708 | jmp file_system_return |
||
709 | |||
710 | fs_rename_error: |
||
711 | mov eax,4 ; partition not defined at hd |
||
712 | jmp file_system_return |
||
713 | |||
714 | fs_noharddisk_rename: |
||
715 | |||
716 | cmp dword [esp+20],12 ; get FILESIZE |
||
717 | jne fs_noharddisk_get_filesize |
||
718 | |||
719 | mov eax,[esp+0] ; /fname |
||
720 | lea edi,[eax+12] |
||
721 | mov byte [eax],0 ; path to asciiz |
||
722 | inc eax ; filename start |
||
723 | mov edx,[esp+4] |
||
724 | add edx,12*2 ; path start |
||
725 | sub edi,edx ; path length |
||
726 | |||
727 | call get_filesize |
||
728 | |||
729 | mov edi,[esp+0] |
||
730 | mov byte [edi],'/' |
||
731 | |||
732 | jmp file_system_return |
||
733 | |||
734 | fs_noharddisk_get_filesize: |
||
735 | |||
736 | cmp dword [esp+20],13 ; get FILEATTR |
||
737 | jne fs_noharddisk_get_fileattr |
||
738 | |||
739 | mov eax,[esp+0] ; /dirname |
||
740 | mov byte [eax],0 ; path to asciiz |
||
741 | inc eax ; filename start |
||
742 | mov edx,[esp+4] |
||
743 | add edx,12*2 ; path start |
||
744 | |||
745 | call get_fileattr |
||
746 | |||
747 | mov edi,[esp+0] |
||
748 | mov byte [edi],'/' |
||
749 | |||
750 | jmp file_system_return |
||
751 | |||
752 | fs_noharddisk_get_fileattr: |
||
753 | |||
754 | cmp dword [esp+20],14 ; get FILEDATE |
||
755 | jne fs_noharddisk_get_filedate |
||
756 | |||
757 | mov eax,[esp+0] ; /dirname |
||
758 | mov byte [eax],0 ; path to asciiz |
||
759 | inc eax ; filename start |
||
760 | mov edx,[esp+4] |
||
761 | add edx,12*2 ; path start |
||
762 | |||
763 | call get_filedate |
||
764 | |||
765 | mov edi,[esp+0] |
||
766 | mov byte [edi],'/' |
||
767 | |||
768 | jmp file_system_return |
||
769 | |||
770 | fs_noharddisk_get_filedate: |
||
771 | |||
772 | cmp dword [esp+20],16 ; START APPLICATION |
||
773 | jne fs_noharddisk_start_application |
||
774 | |||
775 | mov eax,[esp+4] ; fname |
||
776 | add eax,12*2 |
||
777 | |||
778 | mov ebx,[esp+0] ; length |
||
779 | sub ebx,eax |
||
780 | add ebx,12 |
||
781 | |||
782 | mov ecx,[esp+4] ; work area |
||
783 | add ecx,512 |
||
784 | |||
785 | xor ebp,ebp ; parameters to pass |
||
61 | halyavin | 786 | cmp dword [esp+12],ebp;0 |
1 | ha | 787 | je no_hd_start_param |
61 | halyavin | 788 | mov ebp, [esp+12] |
789 | add ebp, std_application_base_address |
||
1 | ha | 790 | no_hd_start_param: |
64 | mario79 | 791 | mov edx,[esp+16] ; flags |
1 | ha | 792 | |
793 | call start_application_hd |
||
794 | |||
61 | halyavin | 795 | jmp file_system_startapp_return |
1 | ha | 796 | |
797 | fs_noharddisk_start_application: |
||
798 | |||
799 | fs_noharddisk: |
||
61 | halyavin | 800 | ; \begin{diamond}[18.03.2006] |
64 | mario79 | 801 | mov eax, 5 ; file not found |
61 | halyavin | 802 | ; à ìîæåò áûòü, âîçâðàùàòü äðóãîé êîä îøèáêè? |
64 | mario79 | 803 | cmp dword [esp+20], 16 |
804 | jnz @f |
||
805 | neg eax |
||
806 | @@: mov ebx, [esp+24+24] ; do not change ebx in application |
||
61 | halyavin | 807 | ; \end{diamond}[18.03.2006] |
1 | ha | 808 | |
809 | file_system_return: |
||
810 | |||
811 | add esp,24 |
||
812 | |||
813 | mov [esp+36],eax |
||
814 | mov [esp+24],ebx |
||
815 | ret |
||
816 | |||
817 | |||
818 | fs_give_dir1: |
||
819 | |||
61 | halyavin | 820 | ; \begin{diamond}[18.03.2006] |
821 | ; /RD,/FD,/HD - only read is allowed |
||
822 | ; other operations return "access denied", eax=10 |
||
823 | ; (execute operation returns eax=-10) |
||
64 | mario79 | 824 | cmp dword [esp+20], 0 |
825 | jz .read |
||
826 | add esp, 20 |
||
827 | pop ecx |
||
828 | mov eax, 10 |
||
829 | cmp ecx, 16 |
||
830 | jnz @f |
||
831 | neg eax |
||
832 | @@: mov [esp+36], eax |
||
833 | ret |
||
61 | halyavin | 834 | .read: |
835 | ; \end{diamond}[18.03.2006] |
||
836 | mov al,0x10 |
||
1 | ha | 837 | mov ebx,1 |
838 | mov edi,[esp+8] |
||
839 | mov esi,dir1 |
||
840 | fs_d1_new: |
||
841 | mov ecx,11 |
||
61 | halyavin | 842 | ; cld |
1 | ha | 843 | rep movsb |
844 | stosb |
||
845 | add edi,32-11-1 |
||
846 | dec ebx |
||
847 | jne fs_d1_new |
||
848 | |||
849 | add esp,24 |
||
850 | |||
61 | halyavin | 851 | and dword [esp+36],0 ; ok read |
1 | ha | 852 | mov dword [esp+24],32*1 ; dir/data size |
853 | ret |
||
854 | |||
855 | |||
856 | |||
857 | LBA_read_ramdisk: |
||
858 | |||
859 | cmp [lba_read_enabled],1 |
||
860 | je lbarrl1 |
||
861 | |||
862 | xor ebx,ebx |
||
863 | mov eax,2 |
||
864 | ret |
||
865 | |||
866 | lbarrl1: |
||
867 | |||
868 | cmp eax,18*2*80 |
||
869 | jb lbarrl2 |
||
870 | xor ebx,ebx |
||
871 | mov eax,3 |
||
872 | ret |
||
873 | |||
874 | lbarrl2: |
||
875 | |||
876 | pushad |
||
877 | |||
878 | call restorefatchain |
||
879 | |||
880 | mov edi,ecx |
||
881 | mov esi,eax |
||
882 | |||
883 | shl esi,9 |
||
884 | add esi,0x100000 |
||
885 | mov ecx,512/4 |
||
61 | halyavin | 886 | ; cld |
1 | ha | 887 | rep movsd |
888 | |||
889 | popad |
||
890 | |||
891 | xor ebx,ebx |
||
892 | xor eax,eax |
||
893 | ret |
||
894 | |||
895 | LBA_read: |
||
896 | |||
897 | ; IN: |
||
898 | ; |
||
899 | ; eax = LBA block to read |
||
900 | ; ebx = pointer to FIRST/SECOND/THIRD/FOURTH |
||
901 | ; ecx = abs pointer to return area |
||
902 | |||
903 | cmp [lba_read_enabled],1 |
||
904 | je lbarl1 |
||
905 | mov eax,2 |
||
906 | ret |
||
907 | |||
908 | lbarl1: |
||
909 | |||
63 | halyavin | 910 | call reserve_hd1 |
1 | ha | 911 | |
912 | push eax |
||
913 | push ecx |
||
914 | |||
915 | mov edi,hd_address_table |
||
916 | mov esi,dir1 |
||
917 | mov eax,[ebx] |
||
918 | mov edx,'1 ' |
||
919 | mov ecx,4 |
||
920 | blar0: |
||
921 | cmp eax,[esi] |
||
922 | je blar2 |
||
923 | cmp eax,edx |
||
924 | je blar2 |
||
925 | inc edx |
||
926 | add edi,8 |
||
927 | add esi,11 |
||
928 | dec ecx |
||
929 | jnz blar0 |
||
930 | |||
931 | mov eax,1 |
||
932 | mov ebx,1 |
||
933 | jmp LBA_read_ret |
||
934 | |||
935 | blar2: |
||
936 | mov eax,[edi+0] |
||
937 | mov ebx,[edi+4] |
||
938 | |||
64 | mario79 | 939 | mov [hdbase],eax |
940 | mov [hdid],ebx |
||
941 | |||
1 | ha | 942 | call wait_for_hd_idle |
943 | |||
944 | ; eax = hd port |
||
945 | ; ebx = set for primary (0x00) or slave (0x10) |
||
946 | |||
947 | cli |
||
948 | |||
949 | mov edx,eax |
||
950 | inc edx |
||
951 | xor eax,eax |
||
952 | out dx,al |
||
953 | inc edx |
||
954 | inc eax |
||
955 | out dx,al |
||
956 | inc edx |
||
957 | mov eax,[esp+4] |
||
958 | out dx,al |
||
959 | shr eax,8 |
||
960 | inc edx |
||
961 | out dx,al |
||
962 | shr eax,8 |
||
963 | inc edx |
||
964 | out dx,al |
||
965 | shr eax,8 |
||
966 | inc edx |
||
967 | and al,1+2+4+8 |
||
968 | add al,bl |
||
969 | add al,128+64+32 |
||
970 | out dx,al |
||
971 | |||
972 | inc edx |
||
973 | mov al,20h |
||
974 | out dx,al |
||
975 | |||
976 | sti |
||
977 | |||
978 | call wait_for_sector_buffer |
||
979 | |||
980 | cli |
||
981 | |||
982 | mov edi,[esp+0] |
||
983 | mov ecx,256 |
||
984 | sub edx,7 |
||
985 | cld |
||
986 | rep insw |
||
987 | |||
988 | sti |
||
989 | |||
990 | xor eax,eax |
||
991 | xor ebx,ebx |
||
992 | |||
993 | LBA_read_ret: |
||
994 | |||
995 | mov [hd1_status],0 |
||
996 | add esp,2*4 |
||
997 | |||
998 | ret |
||
999 | |||
1000 | |||
1001 | expand_pathz: |
||
1002 | ; IN: |
||
1003 | ; esi = asciiz path & file |
||
1004 | ; edi = buffer for path & file name |
||
1005 | ; OUT: |
||
1006 | ; edi = directory & file : / 11 + / 11 + / 11 - zero terminated |
||
1007 | ; ebx = /file name - zero terminated |
||
1008 | ; esi = pointer after source |
||
1009 | |||
1010 | push eax |
||
1011 | push ecx |
||
1012 | push edi ;[esp+0] |
||
1013 | |||
1014 | pathz_start: |
||
1015 | mov byte [edi],'/' |
||
1016 | inc edi |
||
1017 | mov al,32 |
||
1018 | mov ecx,11 |
||
1019 | cld |
||
1020 | rep stosb ; clear filename area |
||
1021 | sub edi,11 |
||
1022 | mov ebx,edi ; start of dir/file name |
||
1023 | |||
1024 | pathz_new_char: |
||
1025 | mov al,[esi] |
||
1026 | inc esi |
||
1027 | cmp al,0 |
||
1028 | je pathz_end |
||
1029 | |||
1030 | cmp al,'/' |
||
1031 | jne pathz_not_path |
||
1032 | cmp edi,ebx ; skip first '/' |
||
1033 | jz pathz_new_char |
||
1034 | lea edi,[ebx+11] ; start of next directory |
||
1035 | jmp pathz_start |
||
1036 | |||
1037 | pathz_not_path: |
||
1038 | cmp al,'.' |
||
1039 | jne pathz_not_ext |
||
1040 | lea edi,[ebx+8] ; start of extension |
||
1041 | jmp pathz_new_char |
||
1042 | |||
1043 | pathz_not_ext: |
||
1044 | cmp al,'a' |
||
1045 | jb pathz_not_low |
||
1046 | cmp al,'z' |
||
1047 | ja pathz_not_low |
||
1048 | sub al,0x20 ; char to uppercase |
||
1049 | |||
1050 | pathz_not_low: |
||
1051 | mov [edi],al |
||
1052 | inc edi |
||
1053 | mov eax,[esp+0] ; start_of_dest_path |
||
1054 | add eax,512 ; keep maximum path under 512 bytes |
||
1055 | cmp edi,eax |
||
1056 | jb pathz_new_char |
||
1057 | |||
1058 | pathz_end: |
||
1059 | cmp ebx,edi ; if path end with '/' |
||
1060 | jnz pathz_put_zero ; go back 1 level |
||
1061 | sub ebx,12 |
||
1062 | |||
1063 | pathz_put_zero: |
||
1064 | mov byte [ebx+11],0 |
||
1065 | dec ebx ; include '/' char into file name |
||
1066 | pop edi |
||
1067 | pop ecx |
||
1068 | pop eax |
||
1069 | ret |
||
1070 | |||
1071 | ;******************************************* |
||
1072 | ;* string to number |
||
1073 | ;* input eax - 4 byte string |
||
1074 | ;* output eax - number |
||
1075 | ;******************************************* |
||
1076 | StringToNumber: |
||
1077 | ; ÏÅÐÅÂÎÄ ÑÒÐÎÊÎÂÎÃÎ ×ÈÑËÀ  ×ÈÑËÎÂÎÉ ÂÈÄ |
||
1078 | ; Âõîä: |
||
1079 | ; EDI - àäðåñ ñòðîêè ñ ÷èñëîì. Êîíåö ÷èñëà îòìå÷åí êîäîì 0Dh |
||
1080 | ; Âûõîä: |
||
1081 | ; CF - èíäèêàòîð îøèáîê: |
||
1082 | ; 0 - îøèáîê íåò; |
||
1083 | ; 1 - îøèáêà |
||
1084 | ; Åñëè CF=0, òî AX - ÷èñëî. |
||
1085 | |||
1086 | push bx |
||
1087 | push cx |
||
1088 | push dx |
||
1089 | push edi |
||
1090 | mov [partition_string],eax |
||
1091 | mov edi,partition_string |
||
1092 | xor cx,cx |
||
1093 | i1: |
||
1094 | mov al,[edi] |
||
1095 | cmp al,32 ;13 |
||
1096 | je i_exit |
||
1097 | ; cmp al,'0' |
||
1098 | ; jb err |
||
1099 | ; cmp al,'9' |
||
1100 | ; ja err |
||
1101 | sub al,48 |
||
1102 | shl cx,1 |
||
1103 | jc err |
||
1104 | mov bx,cx |
||
1105 | shl cx,1 |
||
1106 | jc err |
||
1107 | shl cx,1 |
||
1108 | jc err |
||
1109 | add cx,bx |
||
1110 | jc err |
||
1111 | cbw |
||
1112 | add cx,ax |
||
1113 | jc err |
||
1114 | i3: |
||
1115 | inc edi |
||
1116 | jmp i1 |
||
1117 | i_exit: |
||
1118 | mov ax,cx |
||
1119 | clc |
||
1120 | i4: |
||
1121 | movzx eax,ax |
||
1122 | pop edi |
||
1123 | pop dx |
||
1124 | pop cx |
||
1125 | pop bx |
||
1126 | ret |
||
1127 | |||
1128 | err: |
||
1129 | stc |
||
1130 | jmp i4 |
||
1131 | |||
1132 | partition_string: dd 0 |
||
1133 | db 32 |
||
71 | diamond | 1134 | |
1135 | include 'fs_lfn.inc'>=>>=> |