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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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74 | mario79 | 5 | ;; 29.04.2006 Elimination of hangup after the ;; |
6 | ;; expiration hd_wait_timeout (for LBA) - Mario79 ;; |
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71 | diamond | 7 | ;; xx.04.2006 LFN support - diamond ;; |
1 | ha | 8 | ;; 15.01.2005 get file size/attr/date, file_append (only for hd) - ATV ;; |
9 | ;; 23.11.2004 test if hd/partition is set - ATV ;; |
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10 | ;; 18.11.2004 get_disk_info and more error codes - ATV ;; |
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11 | ;; 08.11.2004 expand_pathz and rename (only for hd) - ATV ;; |
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12 | ;; 20.10.2004 Makedir/Removedir (only for hd) - ATV ;; |
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13 | ;; ;; |
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14 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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15 | |||
16 | iglobal |
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17 | dir0: db 'HARDDISK ' |
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18 | db 'RAMDISK ' |
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19 | db 'FLOPPYDISK ' |
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20 | db 0 |
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21 | |||
22 | dir1: db 'FIRST ' |
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23 | db 'SECOND ' |
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24 | db 'THIRD ' |
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25 | db 'FOURTH ' |
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26 | db 0 |
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27 | |||
28 | not_select_IDE db 0 |
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29 | |||
30 | hd_address_table: dd 0x1f0,0x00,0x1f0,0x10 |
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31 | dd 0x170,0x00,0x170,0x10 |
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32 | endg |
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33 | |||
74 | mario79 | 34 | file_system: |
35 | |||
1 | ha | 36 | ; IN: |
37 | ; |
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38 | ; eax = 0 ; read file /RamDisk/First 6 /HardDisk/First 30 |
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39 | ; eax = 1 ; write file /RamDisk/First 33 /HardDisk/First 56 |
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40 | ; eax = 2 ; delete file /RamDisk/First 32 /HardDisk/First 57 |
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41 | ; eax = 3 ; append to a file /RamDisk/First ?? /HardDisk/First ?? |
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42 | ; eax = 4 ; makedir |
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43 | ; eax = 5 ; rename file/directory |
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44 | ; eax = 8 ; lba read |
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45 | ; eax = 12 ; get_filesize |
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46 | ; eax = 13 ; get_fileattr |
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47 | ; eax = 14 ; get_filedate |
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48 | ; eax = 15 ; get_disk_info |
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49 | ; eax = 16 ; start application |
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50 | ; |
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51 | ; OUT: |
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52 | ; |
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53 | ; eax = 0 : read ok |
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61 | halyavin | 54 | ; eax = 1 : no hd base and/or partition defined |
71 | diamond | 55 | ; eax = 2 : function is unsupported for this FS |
1 | ha | 56 | ; eax = 3 : unknown FS |
57 | ; eax = 4 : partition not defined at hd |
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58 | ; eax = 5 : file not found |
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59 | ; eax = 6 : end of file |
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60 | ; eax = 7 : memory pointer not in application area |
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61 | ; eax = 8 : disk full |
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62 | ; eax = 9 : fat table corrupted |
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63 | ; eax = 10 : access denied |
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64 | ; |
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65 | ; ebx = size |
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66 | |||
61 | halyavin | 67 | ; \begin{diamond}[18.03.2006] |
68 | ; for subfunction 16 (start application) error codes must be negative |
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64 | mario79 | 69 | ; because positive values are valid PIDs |
61 | halyavin | 70 | ; so possible return values are: |
71 | ; eax > 0 : process created, eax=PID |
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72 | |||
73 | ; -0x10 <= eax < 0 : -eax is filesystem error code: |
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74 | ; eax = -1 = 0xFFFFFFFF : no hd base and/or partition defined |
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75 | ; eax = -3 = 0xFFFFFFFD : unknown FS |
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76 | ; eax = -5 = 0xFFFFFFFB : file not found |
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77 | ; eax = -6 = 0xFFFFFFFA : unexpected end of file (probably not executable file) |
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78 | ; eax = -9 = 0xFFFFFFF7 : fat table corrupted |
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79 | ; eax = -10 = 0xFFFFFFF6 : access denied |
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80 | |||
81 | ; -0x20 <= eax < -0x10: eax is process creation error code: |
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82 | ; eax = -0x20 = 0xFFFFFFE0 : too many processes |
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83 | ; eax = -0x1F = 0xFFFFFFE1 : not Menuet/Kolibri executable |
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84 | ; eax = -0x1E = 0xFFFFFFE2 : no memory |
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85 | |||
86 | ; ebx is not changed |
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87 | |||
88 | ; \end{diamond}[18.03.2006] |
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89 | |||
1 | ha | 90 | ; Extract parameters |
64 | mario79 | 91 | add eax, std_application_base_address ; abs start of info block |
1 | ha | 92 | |
93 | cmp dword [eax+0],12 ; Get file size |
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94 | je fs_read |
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95 | cmp dword [eax+0],13 ; Get file attribute |
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96 | je fs_read |
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97 | cmp dword [eax+0],14 ; Get file date/time |
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98 | je fs_read |
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99 | cmp dword [eax+0],15 ; GET_DISK_INFO |
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100 | je fs_info |
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101 | cmp dword [eax+0],16 ; RUN - dont care about read&write blocks |
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102 | je fs_read |
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103 | cmp dword [eax+0],5 ; RENAME - dont care about read&write blocks |
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104 | je fs_read |
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105 | cmp dword [eax+0],4 ; MAKEDIR - dont care about read&write blocks |
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106 | je fs_read |
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107 | cmp dword [eax+0],2 ; DELETE - dont care about read&write blocks |
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108 | je fs_read |
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109 | |||
110 | cmp dword [0x3000],1 ; no memory checks for kernel requests |
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111 | jz no_checks_for_kernel |
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112 | mov edx,eax |
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113 | cmp dword [eax+0],1 |
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114 | jz .check_for_write_op |
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115 | cmp dword [eax+0],3 |
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116 | jnz .usual_check |
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117 | .check_for_write_op: |
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118 | mov ebx,[eax+12] |
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119 | add ebx,std_application_base_address |
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120 | mov ecx,[eax+8] |
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121 | call check_region |
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122 | test eax,eax |
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123 | jnz area_in_app_mem |
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124 | |||
125 | .error_output: |
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126 | mov esi,buffer_failed |
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127 | call sys_msg_board_str |
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61 | halyavin | 128 | ; mov eax,7 |
1 | ha | 129 | mov dword [esp+36],7 |
130 | ret |
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131 | iglobal |
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61 | halyavin | 132 | buffer_failed db 'K : Buffer check failed',13,10,0 |
1 | ha | 133 | endg |
134 | .usual_check: |
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135 | cmp dword [eax+0],0 |
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136 | mov ecx,512 |
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137 | jnz .small_size |
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138 | mov ecx,[eax+8] |
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139 | shl ecx,9 |
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140 | .small_size: |
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141 | mov ebx,[eax+12] |
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142 | add ebx,std_application_base_address |
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143 | call check_region |
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144 | test eax,eax |
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145 | jz .error_output |
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146 | area_in_app_mem: |
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147 | mov eax,edx |
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148 | no_checks_for_kernel: |
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149 | |||
150 | |||
151 | cmp dword [eax+0],3 ; APPEND - allow write 0 bytes (truncate) |
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152 | je fs_read |
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153 | cmp dword [eax+8],0 ; read or write 0 blocks/bytes ? |
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154 | jne fs_read |
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61 | halyavin | 155 | and dword [esp+36],0 |
1 | ha | 156 | ret |
157 | fs_read: |
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158 | |||
159 | mov ebx,[eax+20] ; program wants root directory ? |
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160 | test bl,bl |
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161 | je fs_getroot |
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162 | test bh,bh |
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163 | jne fs_noroot |
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164 | fs_getroot: |
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61 | halyavin | 165 | ; \begin{diamond}[18.03.2006] |
166 | ; root - only read is allowed |
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167 | ; other operations return "access denied", eax=10 |
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168 | ; (execute operation returns eax=-10) |
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64 | mario79 | 169 | cmp dword [eax], 0 |
170 | jz .read_root |
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171 | mov ecx, 10 |
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172 | cmp dword [eax], 16 |
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173 | jnz @f |
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174 | neg ecx |
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175 | @@: mov [esp+36], ecx |
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176 | ret |
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61 | halyavin | 177 | .read_root: |
178 | ; \end{diamond}[18.03.2006] |
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1 | ha | 179 | mov esi,dir0 |
180 | mov edi,[eax+12] |
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61 | halyavin | 181 | add edi,std_application_base_address |
1 | ha | 182 | mov ecx,11 |
61 | halyavin | 183 | push ecx |
64 | mario79 | 184 | ; cld ; already is |
1 | ha | 185 | rep movsb |
61 | halyavin | 186 | mov al,0x10 |
1 | ha | 187 | stosb |
188 | add edi,32-11-1 |
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61 | halyavin | 189 | pop ecx |
1 | ha | 190 | rep movsb |
191 | stosb |
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61 | halyavin | 192 | and dword [esp+36],0 ; ok read |
1 | ha | 193 | mov dword [esp+24],32*2 ; size of root |
194 | ret |
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195 | |||
196 | fs_info: ;start of code - Mihasik |
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61 | halyavin | 197 | push eax |
1 | ha | 198 | cmp [eax+21],byte 'h' |
199 | je fs_info_h |
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200 | cmp [eax+21],byte 'H' |
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201 | je fs_info_h |
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202 | cmp [eax+21],byte 'r' |
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203 | je fs_info_r |
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204 | cmp [eax+21],byte 'R' |
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205 | je fs_info_r |
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206 | mov eax,3 ;if unknown disk |
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207 | xor ebx,ebx |
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208 | xor ecx,ecx |
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209 | xor edx,edx |
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210 | jmp fs_info1 |
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211 | fs_info_r: |
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212 | call ramdisk_free_space ;if ramdisk |
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213 | mov ecx,edi ;free space in ecx |
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214 | shr ecx,9 ;free clusters |
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215 | mov ebx,2847 ;total clusters |
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216 | mov edx,512 ;cluster size |
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217 | xor eax,eax ;always 0 |
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218 | jmp fs_info1 |
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219 | fs_info_h: ;if harddisk |
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220 | call get_hd_info |
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221 | fs_info1: |
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222 | pop edi |
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223 | mov [esp+36],eax |
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224 | mov [esp+24],ebx ; total clusters on disk |
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225 | mov [esp+32],ecx ; free clusters on disk |
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226 | mov [edi],edx ; cluster size in bytes |
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227 | ret ;end of code - Mihasik |
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228 | |||
229 | fs_noroot: |
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230 | |||
61 | halyavin | 231 | push dword [eax+0] ; read/write/delete/.../makedir/rename/lba/run |
232 | push dword [eax+4] ; 512 block number to read |
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233 | push dword [eax+8] ; bytes to write/append or 512 blocks to read |
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1 | ha | 234 | mov ebx,[eax+12] |
61 | halyavin | 235 | add ebx,std_application_base_address |
1 | ha | 236 | push ebx ; abs start of return/save area |
237 | |||
238 | lea esi,[eax+20] ; abs start of dir + filename |
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61 | halyavin | 239 | mov edi,[eax+16] |
64 | mario79 | 240 | add edi,std_application_base_address ; abs start of work area |
1 | ha | 241 | |
242 | call expand_pathz |
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243 | |||
244 | push edi ; dir start |
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245 | push ebx ; name of file start |
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246 | |||
247 | mov eax,[edi+1] |
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248 | cmp eax,'RD ' |
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249 | je fs_yesramdisk |
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61 | halyavin | 250 | cmp eax,'RAMD' |
1 | ha | 251 | jne fs_noramdisk |
252 | |||
253 | fs_yesramdisk: |
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254 | |||
255 | cmp byte [edi+1+11],0 |
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256 | je fs_give_dir1 |
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257 | |||
258 | mov eax,[edi+1+12] |
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259 | cmp eax,'1 ' |
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260 | je fs_yesramdisk_first |
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61 | halyavin | 261 | cmp eax,'FIRS' |
1 | ha | 262 | jne fs_noramdisk |
263 | |||
264 | fs_yesramdisk_first: |
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265 | |||
266 | cmp dword [esp+20],8 ; LBA read ramdisk |
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267 | jne fs_no_LBA_read_ramdisk |
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268 | |||
269 | mov eax,[esp+16] ; LBA block to read |
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270 | mov ecx,[esp+8] ; abs pointer to return area |
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271 | |||
272 | call LBA_read_ramdisk |
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273 | jmp file_system_return |
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274 | |||
275 | |||
276 | fs_no_LBA_read_ramdisk: |
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277 | |||
278 | cmp dword [esp+20],0 ; READ |
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279 | jne fs_noramdisk_read |
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280 | |||
281 | mov eax,[esp+4] ; fname |
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282 | add eax,2*12+1 |
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283 | mov ebx,[esp+16] ; block start |
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284 | inc ebx |
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285 | mov ecx,[esp+12] ; block count |
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286 | mov edx,[esp+8] ; return |
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287 | mov esi,[esp+0] |
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288 | sub esi,eax |
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289 | add esi,12+1 ; file name length |
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290 | call fileread |
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291 | |||
292 | jmp file_system_return |
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293 | |||
294 | |||
295 | fs_noramdisk_read: |
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296 | |||
297 | cmp dword [esp+20],1 ; WRITE |
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298 | jne fs_noramdisk_write |
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299 | |||
300 | mov eax,[esp+4] ; fname |
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301 | add eax,2*12+1 |
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302 | mov ebx,[esp+8] ; buffer |
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303 | mov ecx,[esp+12] ; count to write |
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304 | mov edx,0 ; create new |
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305 | call filesave |
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306 | |||
307 | ; eax=0 ok - eax=1 not enough free space |
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308 | |||
309 | jmp file_system_return |
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310 | |||
311 | fs_noramdisk_write: |
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312 | |||
313 | cmp dword [esp+20],16 ; START APPLICATION |
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314 | jne fs_noramdisk_start_application |
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315 | |||
316 | mov eax,[esp+4] ; fname |
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317 | add eax,2*12+1 |
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318 | |||
319 | xor ebx,ebx ; parameters to pass |
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61 | halyavin | 320 | cmp dword [esp+12],ebx;0 |
1 | ha | 321 | je no_fl_start_param |
61 | halyavin | 322 | mov ebx, [esp+12] |
323 | add ebx, std_application_base_address |
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1 | ha | 324 | no_fl_start_param: |
64 | mario79 | 325 | mov edx,[esp+16] ; flags |
1 | ha | 326 | |
327 | call start_application_fl |
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328 | |||
61 | halyavin | 329 | jmp file_system_startapp_return |
1 | ha | 330 | |
331 | fs_noramdisk_start_application: ;there's new code - Mihasik |
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332 | cmp dword [esp+20],2 ;DELETE |
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333 | jne fs_noramdisk_delete |
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334 | mov eax,[esp+4] ; fname |
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335 | add eax,2*12+1 |
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336 | call filedelete |
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337 | jmp file_system_return |
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338 | |||
339 | fs_noramdisk_delete: |
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340 | cmp dword [esp+20],12 ;GET TIME,DATE,SIZE AND ATTRS |
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341 | jb fs_noramdisk_getinfo |
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342 | cmp dword [esp+20],14 |
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343 | ja fs_noramdisk_getinfo |
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344 | mov eax,[esp+4] ; fname |
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345 | add eax,2*12+1 |
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346 | mov ebx,[esp+20] |
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347 | mov ecx,[esp+0] |
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348 | sub ecx,eax |
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349 | add ecx,12+1 ; file name length |
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350 | call rd_getfileinfo |
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351 | jmp file_system_return |
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352 | fs_noramdisk_getinfo: ;End of code - Mihasik |
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353 | |||
354 | fs_noramdisk: |
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355 | |||
356 | ;******************************************************************** |
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357 | mov eax,[edi+1] |
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358 | cmp eax,'FD ' |
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359 | je fs_yesflpdisk |
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61 | halyavin | 360 | cmp eax,'FLOP' |
1 | ha | 361 | jne fs_noflpdisk |
362 | |||
363 | fs_yesflpdisk: |
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364 | call reserve_flp |
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365 | |||
366 | cmp byte [edi+1+11],0 |
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367 | je fs_give_dir1 |
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368 | |||
369 | mov eax,[edi+1+12] |
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370 | cmp eax,'1 ' |
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371 | je fs_yesflpdisk_first |
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61 | halyavin | 372 | cmp eax,'FIRS' |
1 | ha | 373 | je fs_yesflpdisk_first |
374 | cmp eax,'2 ' |
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375 | je fs_yesflpdisk_second |
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61 | halyavin | 376 | cmp eax,'SECO' |
1 | ha | 377 | jne fs_noflpdisk |
378 | jmp fs_yesflpdisk_second |
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379 | |||
380 | fs_yesflpdisk_first: |
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381 | mov [flp_number],1 |
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382 | jmp fs_yesflpdisk_start |
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383 | fs_yesflpdisk_second: |
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384 | mov [flp_number],2 |
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385 | fs_yesflpdisk_start: |
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386 | cmp dword [esp+20],0 ; READ |
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387 | jne fs_noflpdisk_read |
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388 | |||
389 | mov eax,[esp+4] ; fname |
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390 | add eax,2*12+1 |
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391 | mov ebx,[esp+16] ; block start |
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392 | inc ebx |
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393 | mov ecx,[esp+12] ; block count |
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394 | mov edx,[esp+8] ; return |
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395 | mov esi,[esp+0] |
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396 | sub esi,eax |
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397 | add esi,12+1 ; file name length |
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398 | call floppy_fileread |
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399 | |||
400 | jmp file_system_return |
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401 | |||
402 | |||
403 | fs_noflpdisk_read: |
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404 | |||
405 | cmp dword [esp+20],1 ; WRITE |
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406 | jne fs_noflpdisk_write |
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407 | |||
408 | mov eax,[esp+4] ; fname |
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409 | add eax,2*12+1 |
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410 | mov ebx,[esp+8] ; buffer |
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411 | mov ecx,[esp+12] ; count to write |
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412 | mov edx,0 ; create new |
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413 | call floppy_filesave |
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414 | |||
415 | ; eax=0 ok - eax=1 not enough free space |
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416 | |||
417 | jmp file_system_return |
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418 | |||
419 | fs_noflpdisk_write: |
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420 | |||
421 | cmp dword [esp+20],2 ; DELETE |
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422 | jne fs_noflpdisk_delete |
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423 | |||
424 | mov eax,[esp+4] ; fname |
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425 | add eax,2*12+1 |
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426 | call floppy_filedelete |
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427 | mov [flp_status],0 |
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428 | jmp file_system_return |
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429 | |||
430 | fs_noflpdisk_delete: |
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431 | cmp dword [esp+20],16 ; START APPLICATION |
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432 | jne fs_noflpdisk_start_application |
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433 | |||
434 | mov eax,[esp+4] ; fname |
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435 | add eax,2*12+1 |
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436 | |||
437 | xor ebx,ebx ; parameters to pass |
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61 | halyavin | 438 | cmp dword [esp+12],ebx;0 |
1 | ha | 439 | je no_flp_start_param |
440 | mov ebx,[0x3010] |
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441 | mov ebx,[ebx+0x10] |
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442 | add ebx,[esp+12] |
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443 | |||
444 | no_flp_start_param: |
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64 | mario79 | 445 | mov edx,[esp+16] ; flags |
1 | ha | 446 | |
447 | call start_application_floppy |
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448 | |||
61 | halyavin | 449 | file_system_startapp_return: |
64 | mario79 | 450 | mov ebx, [esp+24+24] ; do not modify ebx in application |
1 | ha | 451 | jmp file_system_return |
452 | |||
453 | fs_noflpdisk_start_application: |
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454 | |||
455 | fs_noflpdisk: |
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456 | ;***************************************************************** |
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457 | |||
458 | mov eax,[edi+1] |
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459 | cmp eax,'HD0 ' |
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460 | je fs_yesharddisk_IDE0 |
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461 | cmp eax,'HD1 ' |
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462 | je fs_yesharddisk_IDE1 |
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463 | cmp eax,'HD2 ' |
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464 | je fs_yesharddisk_IDE2 |
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465 | cmp eax,'HD3 ' |
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466 | je fs_yesharddisk_IDE3 |
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467 | jmp old_path_harddisk |
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468 | fs_yesharddisk_IDE0: |
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469 | call reserve_hd1 |
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470 | mov [hdbase],0x1f0 |
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471 | mov [hdid],0x0 |
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472 | mov [hdpos],1 |
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473 | jmp fs_yesharddisk_partition |
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474 | fs_yesharddisk_IDE1: |
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475 | call reserve_hd1 |
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476 | mov [hdbase],0x1f0 |
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477 | mov [hdid],0x10 |
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478 | mov [hdpos],2 |
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479 | jmp fs_yesharddisk_partition |
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480 | fs_yesharddisk_IDE2: |
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481 | call reserve_hd1 |
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482 | mov [hdbase],0x170 |
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483 | mov [hdid],0x0 |
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484 | mov [hdpos],3 |
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485 | jmp fs_yesharddisk_partition |
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486 | fs_yesharddisk_IDE3: |
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487 | call reserve_hd1 |
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488 | mov [hdbase],0x170 |
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489 | mov [hdid],0x10 |
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490 | mov [hdpos],4 |
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491 | fs_yesharddisk_partition: |
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492 | ; call choice_necessity_partition |
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493 | ; jmp fs_yesharddisk_all |
||
494 | jmp fs_for_new_semantic |
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495 | |||
496 | choice_necessity_partition: |
||
497 | mov eax,[edi+1+12] |
||
498 | call StringToNumber |
||
499 | mov [fat32part],eax |
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500 | choice_necessity_partition_1: |
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501 | mov ecx,[hdpos] |
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502 | xor eax,eax |
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61 | halyavin | 503 | mov [0xfe10], eax ; entries in hd cache |
1 | ha | 504 | mov edx,0x40002 |
505 | search_partition_array: |
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506 | mov bl,[edx] |
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507 | movzx ebx,bl |
||
508 | add eax,ebx |
||
509 | inc edx |
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510 | loop search_partition_array |
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511 | sub eax,ebx |
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512 | add eax,[fat32part] |
||
513 | dec eax |
||
514 | xor edx,edx |
||
515 | imul eax,100 |
||
516 | add eax,0x4000a |
||
517 | mov [transfer_adress],eax |
||
518 | call partition_data_transfer_1 |
||
519 | ret |
||
520 | |||
521 | old_path_harddisk: |
||
522 | mov eax,[edi+1] |
||
523 | cmp eax,'HD ' |
||
524 | je fs_yesharddisk |
||
61 | halyavin | 525 | cmp eax,'HARD' |
1 | ha | 526 | jne fs_noharddisk |
527 | |||
528 | fs_yesharddisk: |
||
529 | cmp dword [esp+20],8 ; LBA read |
||
530 | jne fs_no_LBA_read |
||
531 | mov eax,[esp+16] ; LBA block to read |
||
532 | lea ebx,[edi+1+12] ; pointer to FIRST/SECOND/THIRD/FOURTH |
||
533 | mov ecx,[esp+8] ; abs pointer to return area |
||
534 | call LBA_read |
||
535 | jmp file_system_return |
||
536 | |||
537 | fs_no_LBA_read: |
||
538 | |||
539 | cmp byte [edi+1+11],0 ; directory read |
||
540 | je fs_give_dir1 |
||
63 | halyavin | 541 | call reserve_hd1 |
1 | ha | 542 | fs_for_new_semantic: |
543 | call choice_necessity_partition |
||
544 | |||
545 | fs_yesharddisk_all: |
||
546 | mov eax,1 |
||
64 | mario79 | 547 | cmp dword [esp+20], 16 |
548 | jnz @f |
||
549 | neg eax |
||
550 | @@: mov ebx, [esp+24+24] |
||
1 | ha | 551 | cmp [hdpos],0 ; is hd base set? |
63 | halyavin | 552 | jz hd_err_return |
1 | ha | 553 | cmp [fat32part],0 ; is partition set? |
63 | halyavin | 554 | jnz @f |
555 | hd_err_return: |
||
556 | and [hd1_status], 0 |
||
557 | jmp file_system_return |
||
558 | @@: |
||
1 | ha | 559 | |
560 | cmp dword [esp+20],0 ; READ |
||
561 | jne fs_noharddisk_read |
||
562 | |||
563 | mov eax,[esp+0] ; /fname |
||
564 | lea edi,[eax+12] |
||
565 | mov byte [eax],0 ; path to asciiz |
||
566 | inc eax ; filename start |
||
567 | |||
568 | mov ebx,[esp+12] ; count to read |
||
569 | mov ecx,[esp+8] ; buffer |
||
570 | mov edx,[esp+4] |
||
571 | add edx,12*2 ; dir start |
||
572 | sub edi,edx ; path length |
||
573 | mov esi,[esp+16] ; blocks to read |
||
574 | |||
575 | call file_read |
||
576 | |||
577 | mov edi,[esp+0] |
||
578 | mov byte [edi],'/' |
||
579 | |||
580 | jmp file_system_return |
||
581 | |||
582 | fs_noharddisk_read: |
||
583 | |||
584 | |||
585 | cmp dword [esp+20],1 ; WRITE |
||
586 | jne fs_noharddisk_write |
||
587 | |||
588 | mov eax,[esp+0] ; /fname |
||
589 | mov byte [eax],0 ; path to asciiz |
||
590 | inc eax ; filename start |
||
591 | |||
592 | mov ebx,[esp+12] ; count to write |
||
593 | mov ecx,[esp+8] ; buffer |
||
594 | mov edx,[esp+4] |
||
595 | add edx,12*2 ; path start |
||
596 | |||
597 | call file_write |
||
598 | |||
599 | mov edi,[esp+0] |
||
600 | mov byte [edi],'/' |
||
601 | |||
602 | ; eax=0 ok - eax=1 not enough free space |
||
603 | |||
604 | jmp file_system_return |
||
605 | |||
606 | |||
607 | fs_noharddisk_write: |
||
608 | |||
609 | cmp dword [esp+20],2 ; DELETE |
||
610 | jne fs_noharddisk_delete |
||
611 | |||
612 | mov eax,[esp+0] ; /dirname or /filename |
||
613 | mov byte [eax],0 ; path to asciiz |
||
614 | inc eax ; filename start |
||
615 | mov edx,[esp+4] |
||
616 | add edx,12*2 ; path start |
||
617 | |||
618 | call removedir |
||
619 | |||
620 | mov edi,[esp+0] |
||
621 | mov byte [edi],'/' |
||
622 | |||
623 | jmp file_system_return |
||
624 | |||
625 | fs_noharddisk_delete: |
||
626 | |||
627 | cmp dword [esp+20],3 ; APPEND |
||
628 | jne fs_noharddisk_append |
||
629 | |||
630 | mov eax,[esp+0] ; /dirname or /filename |
||
631 | mov byte [eax],0 ; path to asciiz |
||
632 | inc eax ; filename start |
||
633 | mov edx,[esp+4] |
||
634 | add edx,12*2 ; path start |
||
635 | mov ecx,[esp+8] ; buffer |
||
636 | mov ebx,[esp+12] ; count to write |
||
637 | mov esi,[esp+16] ; bytes to skip over |
||
638 | |||
639 | call file_append |
||
640 | |||
641 | mov edi,[esp+0] |
||
642 | mov byte [edi],'/' |
||
643 | |||
644 | jmp file_system_return |
||
645 | |||
646 | fs_noharddisk_append: |
||
647 | |||
648 | cmp dword [esp+20],4 ; MAKEDIR |
||
649 | jne fs_noharddisk_makedir |
||
650 | |||
651 | mov eax,[esp+0] ; /dirname |
||
652 | mov byte [eax],0 ; path to asciiz |
||
653 | inc eax ; filename start |
||
654 | mov edx,[esp+4] |
||
655 | add edx,12*2 ; path start |
||
656 | |||
657 | call makedir |
||
658 | |||
659 | mov edi,[esp+0] |
||
660 | mov byte [edi],'/' |
||
661 | |||
662 | jmp file_system_return |
||
663 | |||
664 | fs_noharddisk_makedir: |
||
665 | |||
666 | cmp dword [esp+20],5 ; RENAME |
||
667 | jne fs_noharddisk_rename |
||
668 | |||
669 | mov edi,[esp+0] ; start of source file name |
||
670 | add edi,12+1 ; continue after name |
||
671 | call expand_pathz ; convert destination name |
||
672 | |||
673 | mov eax,[edi+1] |
||
674 | cmp eax,'HD ' |
||
675 | je fs_rename_test1 |
||
61 | halyavin | 676 | cmp eax,'HARD' |
1 | ha | 677 | jne fs_rename_error |
678 | |||
679 | fs_rename_test1: |
||
680 | mov eax,[edi+1+12] |
||
681 | cmp eax,'1 ' |
||
682 | je fs_rename_start |
||
61 | halyavin | 683 | cmp eax,'FIRS' |
1 | ha | 684 | jne fs_rename_error |
685 | |||
686 | fs_rename_start: |
||
687 | mov byte [ebx],0 ; path to asciiz |
||
688 | inc ebx ; filename start |
||
689 | add edi,12*2 ; path start |
||
690 | cmp byte [ebx],0 |
||
691 | je fs_rename_error |
||
692 | cmp byte [ebx],32 |
||
693 | je fs_rename_error |
||
694 | |||
695 | mov eax,[esp+0] ; /filename |
||
696 | mov byte [eax],0 ; path to asciiz |
||
697 | inc eax ; filename start |
||
698 | mov edx,[esp+4] |
||
699 | add edx,12*2 ; path start |
||
700 | |||
701 | call rename |
||
702 | |||
703 | mov edi,[esp+0] |
||
704 | mov byte [edi],'/' |
||
705 | |||
706 | jmp file_system_return |
||
707 | |||
708 | fs_rename_error: |
||
709 | mov eax,4 ; partition not defined at hd |
||
710 | jmp file_system_return |
||
711 | |||
712 | fs_noharddisk_rename: |
||
713 | |||
714 | cmp dword [esp+20],12 ; get FILESIZE |
||
715 | jne fs_noharddisk_get_filesize |
||
716 | |||
717 | mov eax,[esp+0] ; /fname |
||
718 | lea edi,[eax+12] |
||
719 | mov byte [eax],0 ; path to asciiz |
||
720 | inc eax ; filename start |
||
721 | mov edx,[esp+4] |
||
722 | add edx,12*2 ; path start |
||
723 | sub edi,edx ; path length |
||
724 | |||
725 | call get_filesize |
||
726 | |||
727 | mov edi,[esp+0] |
||
728 | mov byte [edi],'/' |
||
729 | |||
730 | jmp file_system_return |
||
731 | |||
732 | fs_noharddisk_get_filesize: |
||
733 | |||
734 | cmp dword [esp+20],13 ; get FILEATTR |
||
735 | jne fs_noharddisk_get_fileattr |
||
736 | |||
737 | mov eax,[esp+0] ; /dirname |
||
738 | mov byte [eax],0 ; path to asciiz |
||
739 | inc eax ; filename start |
||
740 | mov edx,[esp+4] |
||
741 | add edx,12*2 ; path start |
||
742 | |||
743 | call get_fileattr |
||
744 | |||
745 | mov edi,[esp+0] |
||
746 | mov byte [edi],'/' |
||
747 | |||
748 | jmp file_system_return |
||
749 | |||
750 | fs_noharddisk_get_fileattr: |
||
751 | |||
752 | cmp dword [esp+20],14 ; get FILEDATE |
||
753 | jne fs_noharddisk_get_filedate |
||
754 | |||
755 | mov eax,[esp+0] ; /dirname |
||
756 | mov byte [eax],0 ; path to asciiz |
||
757 | inc eax ; filename start |
||
758 | mov edx,[esp+4] |
||
759 | add edx,12*2 ; path start |
||
760 | |||
761 | call get_filedate |
||
762 | |||
763 | mov edi,[esp+0] |
||
764 | mov byte [edi],'/' |
||
765 | |||
766 | jmp file_system_return |
||
767 | |||
768 | fs_noharddisk_get_filedate: |
||
769 | |||
770 | cmp dword [esp+20],16 ; START APPLICATION |
||
771 | jne fs_noharddisk_start_application |
||
772 | |||
773 | mov eax,[esp+4] ; fname |
||
774 | add eax,12*2 |
||
775 | |||
776 | mov ebx,[esp+0] ; length |
||
777 | sub ebx,eax |
||
778 | add ebx,12 |
||
779 | |||
780 | mov ecx,[esp+4] ; work area |
||
781 | add ecx,512 |
||
782 | |||
783 | xor ebp,ebp ; parameters to pass |
||
61 | halyavin | 784 | cmp dword [esp+12],ebp;0 |
1 | ha | 785 | je no_hd_start_param |
61 | halyavin | 786 | mov ebp, [esp+12] |
787 | add ebp, std_application_base_address |
||
1 | ha | 788 | no_hd_start_param: |
64 | mario79 | 789 | mov edx,[esp+16] ; flags |
1 | ha | 790 | |
791 | call start_application_hd |
||
792 | |||
61 | halyavin | 793 | jmp file_system_startapp_return |
1 | ha | 794 | |
795 | fs_noharddisk_start_application: |
||
796 | |||
797 | fs_noharddisk: |
||
61 | halyavin | 798 | ; \begin{diamond}[18.03.2006] |
64 | mario79 | 799 | mov eax, 5 ; file not found |
61 | halyavin | 800 | ; à ìîæåò áûòü, âîçâðàùàòü äðóãîé êîä îøèáêè? |
64 | mario79 | 801 | cmp dword [esp+20], 16 |
802 | jnz @f |
||
803 | neg eax |
||
804 | @@: mov ebx, [esp+24+24] ; do not change ebx in application |
||
61 | halyavin | 805 | ; \end{diamond}[18.03.2006] |
1 | ha | 806 | |
807 | file_system_return: |
||
808 | |||
809 | add esp,24 |
||
810 | |||
811 | mov [esp+36],eax |
||
812 | mov [esp+24],ebx |
||
813 | ret |
||
814 | |||
815 | |||
816 | fs_give_dir1: |
||
817 | |||
61 | halyavin | 818 | ; \begin{diamond}[18.03.2006] |
819 | ; /RD,/FD,/HD - only read is allowed |
||
820 | ; other operations return "access denied", eax=10 |
||
821 | ; (execute operation returns eax=-10) |
||
64 | mario79 | 822 | cmp dword [esp+20], 0 |
823 | jz .read |
||
824 | add esp, 20 |
||
825 | pop ecx |
||
826 | mov eax, 10 |
||
827 | cmp ecx, 16 |
||
828 | jnz @f |
||
829 | neg eax |
||
830 | @@: mov [esp+36], eax |
||
831 | ret |
||
61 | halyavin | 832 | .read: |
833 | ; \end{diamond}[18.03.2006] |
||
834 | mov al,0x10 |
||
1 | ha | 835 | mov ebx,1 |
836 | mov edi,[esp+8] |
||
837 | mov esi,dir1 |
||
838 | fs_d1_new: |
||
839 | mov ecx,11 |
||
61 | halyavin | 840 | ; cld |
1 | ha | 841 | rep movsb |
842 | stosb |
||
843 | add edi,32-11-1 |
||
844 | dec ebx |
||
845 | jne fs_d1_new |
||
846 | |||
847 | add esp,24 |
||
848 | |||
61 | halyavin | 849 | and dword [esp+36],0 ; ok read |
1 | ha | 850 | mov dword [esp+24],32*1 ; dir/data size |
851 | ret |
||
852 | |||
853 | |||
854 | |||
855 | LBA_read_ramdisk: |
||
856 | |||
857 | cmp [lba_read_enabled],1 |
||
858 | je lbarrl1 |
||
859 | |||
860 | xor ebx,ebx |
||
861 | mov eax,2 |
||
862 | ret |
||
863 | |||
864 | lbarrl1: |
||
865 | |||
866 | cmp eax,18*2*80 |
||
867 | jb lbarrl2 |
||
868 | xor ebx,ebx |
||
869 | mov eax,3 |
||
870 | ret |
||
871 | |||
872 | lbarrl2: |
||
873 | |||
874 | pushad |
||
875 | |||
876 | call restorefatchain |
||
877 | |||
878 | mov edi,ecx |
||
879 | mov esi,eax |
||
880 | |||
881 | shl esi,9 |
||
882 | add esi,0x100000 |
||
883 | mov ecx,512/4 |
||
61 | halyavin | 884 | ; cld |
1 | ha | 885 | rep movsd |
886 | |||
887 | popad |
||
888 | |||
889 | xor ebx,ebx |
||
890 | xor eax,eax |
||
891 | ret |
||
892 | |||
893 | LBA_read: |
||
894 | |||
895 | ; IN: |
||
896 | ; |
||
897 | ; eax = LBA block to read |
||
898 | ; ebx = pointer to FIRST/SECOND/THIRD/FOURTH |
||
899 | ; ecx = abs pointer to return area |
||
900 | |||
901 | cmp [lba_read_enabled],1 |
||
902 | je lbarl1 |
||
903 | mov eax,2 |
||
904 | ret |
||
905 | |||
906 | lbarl1: |
||
907 | |||
63 | halyavin | 908 | call reserve_hd1 |
1 | ha | 909 | |
910 | push eax |
||
911 | push ecx |
||
912 | |||
913 | mov edi,hd_address_table |
||
914 | mov esi,dir1 |
||
915 | mov eax,[ebx] |
||
916 | mov edx,'1 ' |
||
917 | mov ecx,4 |
||
918 | blar0: |
||
919 | cmp eax,[esi] |
||
920 | je blar2 |
||
921 | cmp eax,edx |
||
922 | je blar2 |
||
923 | inc edx |
||
924 | add edi,8 |
||
925 | add esi,11 |
||
926 | dec ecx |
||
927 | jnz blar0 |
||
928 | |||
929 | mov eax,1 |
||
930 | mov ebx,1 |
||
931 | jmp LBA_read_ret |
||
932 | |||
933 | blar2: |
||
934 | mov eax,[edi+0] |
||
935 | mov ebx,[edi+4] |
||
936 | |||
64 | mario79 | 937 | mov [hdbase],eax |
938 | mov [hdid],ebx |
||
939 | |||
1 | ha | 940 | call wait_for_hd_idle |
74 | mario79 | 941 | cmp [hd_error],0 |
942 | jne hd_lba_error |
||
1 | ha | 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 |
||
74 | mario79 | 979 | cmp [hd_error],0 |
980 | jne hd_lba_error |
||
1 | ha | 981 | |
982 | cli |
||
983 | |||
984 | mov edi,[esp+0] |
||
985 | mov ecx,256 |
||
986 | sub edx,7 |
||
987 | cld |
||
988 | rep insw |
||
989 | |||
990 | sti |
||
991 | |||
992 | xor eax,eax |
||
993 | xor ebx,ebx |
||
994 | |||
995 | LBA_read_ret: |
||
74 | mario79 | 996 | mov [hd_error],0 |
1 | ha | 997 | mov [hd1_status],0 |
998 | add esp,2*4 |
||
999 | |||
1000 | ret |
||
1001 | |||
1002 | |||
1003 | expand_pathz: |
||
1004 | ; IN: |
||
1005 | ; esi = asciiz path & file |
||
1006 | ; edi = buffer for path & file name |
||
1007 | ; OUT: |
||
1008 | ; edi = directory & file : / 11 + / 11 + / 11 - zero terminated |
||
1009 | ; ebx = /file name - zero terminated |
||
1010 | ; esi = pointer after source |
||
1011 | |||
1012 | push eax |
||
1013 | push ecx |
||
1014 | push edi ;[esp+0] |
||
1015 | |||
1016 | pathz_start: |
||
1017 | mov byte [edi],'/' |
||
1018 | inc edi |
||
1019 | mov al,32 |
||
1020 | mov ecx,11 |
||
1021 | cld |
||
1022 | rep stosb ; clear filename area |
||
1023 | sub edi,11 |
||
1024 | mov ebx,edi ; start of dir/file name |
||
1025 | |||
1026 | pathz_new_char: |
||
1027 | mov al,[esi] |
||
1028 | inc esi |
||
1029 | cmp al,0 |
||
1030 | je pathz_end |
||
1031 | |||
1032 | cmp al,'/' |
||
1033 | jne pathz_not_path |
||
1034 | cmp edi,ebx ; skip first '/' |
||
1035 | jz pathz_new_char |
||
1036 | lea edi,[ebx+11] ; start of next directory |
||
1037 | jmp pathz_start |
||
1038 | |||
1039 | pathz_not_path: |
||
1040 | cmp al,'.' |
||
1041 | jne pathz_not_ext |
||
1042 | lea edi,[ebx+8] ; start of extension |
||
1043 | jmp pathz_new_char |
||
1044 | |||
1045 | pathz_not_ext: |
||
1046 | cmp al,'a' |
||
1047 | jb pathz_not_low |
||
1048 | cmp al,'z' |
||
1049 | ja pathz_not_low |
||
1050 | sub al,0x20 ; char to uppercase |
||
1051 | |||
1052 | pathz_not_low: |
||
1053 | mov [edi],al |
||
1054 | inc edi |
||
1055 | mov eax,[esp+0] ; start_of_dest_path |
||
1056 | add eax,512 ; keep maximum path under 512 bytes |
||
1057 | cmp edi,eax |
||
1058 | jb pathz_new_char |
||
1059 | |||
1060 | pathz_end: |
||
1061 | cmp ebx,edi ; if path end with '/' |
||
1062 | jnz pathz_put_zero ; go back 1 level |
||
1063 | sub ebx,12 |
||
1064 | |||
1065 | pathz_put_zero: |
||
1066 | mov byte [ebx+11],0 |
||
1067 | dec ebx ; include '/' char into file name |
||
1068 | pop edi |
||
1069 | pop ecx |
||
1070 | pop eax |
||
1071 | ret |
||
1072 | |||
1073 | ;******************************************* |
||
1074 | ;* string to number |
||
1075 | ;* input eax - 4 byte string |
||
1076 | ;* output eax - number |
||
1077 | ;******************************************* |
||
1078 | StringToNumber: |
||
1079 | ; ÏÅÐÅÂÎÄ ÑÒÐÎÊÎÂÎÃÎ ×ÈÑËÀ  ×ÈÑËÎÂÎÉ ÂÈÄ |
||
1080 | ; Âõîä: |
||
1081 | ; EDI - àäðåñ ñòðîêè ñ ÷èñëîì. Êîíåö ÷èñëà îòìå÷åí êîäîì 0Dh |
||
1082 | ; Âûõîä: |
||
1083 | ; CF - èíäèêàòîð îøèáîê: |
||
1084 | ; 0 - îøèáîê íåò; |
||
1085 | ; 1 - îøèáêà |
||
1086 | ; Åñëè CF=0, òî AX - ÷èñëî. |
||
1087 | |||
1088 | push bx |
||
1089 | push cx |
||
1090 | push dx |
||
1091 | push edi |
||
1092 | mov [partition_string],eax |
||
1093 | mov edi,partition_string |
||
1094 | xor cx,cx |
||
1095 | i1: |
||
1096 | mov al,[edi] |
||
1097 | cmp al,32 ;13 |
||
1098 | je i_exit |
||
1099 | ; cmp al,'0' |
||
1100 | ; jb err |
||
1101 | ; cmp al,'9' |
||
1102 | ; ja err |
||
1103 | sub al,48 |
||
1104 | shl cx,1 |
||
1105 | jc err |
||
1106 | mov bx,cx |
||
1107 | shl cx,1 |
||
1108 | jc err |
||
1109 | shl cx,1 |
||
1110 | jc err |
||
1111 | add cx,bx |
||
1112 | jc err |
||
1113 | cbw |
||
1114 | add cx,ax |
||
1115 | jc err |
||
1116 | i3: |
||
1117 | inc edi |
||
1118 | jmp i1 |
||
1119 | i_exit: |
||
1120 | mov ax,cx |
||
1121 | clc |
||
1122 | i4: |
||
1123 | movzx eax,ax |
||
1124 | pop edi |
||
1125 | pop dx |
||
1126 | pop cx |
||
1127 | pop bx |
||
1128 | ret |
||
1129 | |||
1130 | err: |
||
1131 | stc |
||
1132 | jmp i4 |
||
1133 | |||
1134 | partition_string: dd 0 |
||
1135 | db 32>=>>=> |