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Rev 3908 Rev 5201
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;; Copyright (C) KolibriOS team 2004-2013. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2004-2013. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License    ;;
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;; Distributed under terms of the GNU General Public License    ;;
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$Revision: 3908 $
 8 
$Revision: 5201 $
- 
 
 9 
 
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 10 
search_partitions:
- 
 
 11 
        push    ecx
10 
search_partitions:
 12 
; 1. Fill missing parameters in HD_DATA structures.
- 
 
 13 
        xor     eax, eax
11 
; 1. Fill missing parameters in HD_DATA structures.
 14 
        mov     edx, IDE_controller_1
12 
        mov     eax, [hd_address_table]
 15 
        mov     ax, [edx + IDE_DATA.BAR0_val]
13 
        mov     [hd0_data.hdbase], eax   ;0x1f0
 16 
        mov     [hd0_data.hdbase], eax
14 
        mov     [hd1_data.hdbase], eax
 17 
        mov     [hd1_data.hdbase], eax
15 
        mov     eax, [hd_address_table+16]
 18 
        mov     ax, [edx + IDE_DATA.BAR2_val]
- 
 
 19 
        mov     [hd2_data.hdbase], eax
- 
 
 20 
        mov     [hd3_data.hdbase], eax
- 
 
 21 
 
- 
 
 22 
        mov     edx, IDE_controller_2
- 
 
 23 
        mov     ax, [edx + IDE_DATA.BAR0_val]
- 
 
 24 
        mov     [hd4_data.hdbase], eax
- 
 
 25 
        mov     [hd5_data.hdbase], eax
- 
 
 26 
        mov     ax, [edx + IDE_DATA.BAR2_val]
- 
 
 27 
        mov     [hd6_data.hdbase], eax
- 
 
 28 
        mov     [hd7_data.hdbase], eax
- 
 
 29 
 
- 
 
 30 
        mov     edx, IDE_controller_3
- 
 
 31 
        mov     ax, [edx + IDE_DATA.BAR0_val]
- 
 
 32 
        mov     [hd8_data.hdbase], eax
- 
 
 33 
        mov     [hd9_data.hdbase], eax
- 
 
 34 
        mov     ax, [edx + IDE_DATA.BAR2_val]
16 
        mov     [hd2_data.hdbase], eax
 35 
        mov     [hd10_data.hdbase], eax
17 
        mov     [hd3_data.hdbase], eax
 36 
        mov     [hd11_data.hdbase], eax
18 
; 2. Notify the system about /hd* disks.
 37 
; 2. Notify the system about /hd* disks.
19 
; For every existing disk, call ide_disk_add with correct parameters.
 38 
; For every existing disk, call ide_disk_add with correct parameters.
20 
; Generate name "hdN" on the stack; this is 4 bytes including terminating zero.
 39 
; Generate name "hdN" on the stack; this is 4 bytes including terminating zero.
- 
 
 40 
;-----------------------------------------------------------------------------
21 
; 2a. /hd0: exists if mask 0x40 in [DRIVE_DATA+1] is set,
 41 
; 2a. /hd0: exists if mask 0x40 in [DRIVE_DATA+1] is set,
22 
;     data: hd0_data,
 42 
;     data: hd0_data,
23 
;     number of partitions: [DRIVE_DATA+2]
 43 
;     number of partitions: [DRIVE_DATA+2]
24 
        test    [DRIVE_DATA+1], byte 0x40
 44 
        test    [DRIVE_DATA+1], byte 0x40
25 
        jz      @f
 45 
        jz      @f
- 
 
 46 
 
26 
        push    'hd0'
 47 
        push    'hd0'
27 
        mov     eax, esp        ; name
 48 
        mov     eax, esp        ; name
28 
        mov     edx, hd0_data
 49 
        mov     edx, hd0_data
29 
        call    ide_disk_add
 50 
        call    ide_disk_add
30 
        mov     [DRIVE_DATA+2], al
 51 
        mov     [DRIVE_DATA+2], al
31 
        pop     ecx             ; restore the stack
 52 
        pop     ecx             ; restore the stack
- 
 
 53 
;-----------------------------------------------------------------------------
32 
@@:
 54 
@@:
33 
; 2b. /hd1: exists if mask 0x10 in [DRIVE_DATA+1] is set,
 55 
; 2b. /hd1: exists if mask 0x10 in [DRIVE_DATA+1] is set,
34 
;     data: hd1_data,
 56 
;     data: hd1_data,
35 
;     number of partitions: [DRIVE_DATA+3]
 57 
;     number of partitions: [DRIVE_DATA+3]
36 
        test    [DRIVE_DATA+1], byte 0x10
 58 
        test    [DRIVE_DATA+1], byte 0x10
37 
        jz      @f
 59 
        jz      @f
- 
 
 60 
 
38 
        push    'hd1'
 61 
        push    'hd1'
39 
        mov     eax, esp
 62 
        mov     eax, esp
40 
        mov     edx, hd1_data
 63 
        mov     edx, hd1_data
41 
        call    ide_disk_add
 64 
        call    ide_disk_add
42 
        mov     [DRIVE_DATA+3], al
 65 
        mov     [DRIVE_DATA+3], al
43 
        pop     ecx
 66 
        pop     ecx
- 
 
 67 
;-----------------------------------------------------------------------------
44 
@@:
 68 
@@:
45 
; 2c. /hd2: exists if mask 4 in [DRIVE_DATA+1] is set,
 69 
; 2c. /hd2: exists if mask 4 in [DRIVE_DATA+1] is set,
46 
;     data: hd2_data,
 70 
;     data: hd2_data,
47 
;     number of partitions: [DRIVE_DATA+4]
 71 
;     number of partitions: [DRIVE_DATA+4]
48 
        test    [DRIVE_DATA+1], byte 4
 72 
        test    [DRIVE_DATA+1], byte 4
49 
        jz      @f
 73 
        jz      @f
- 
 
 74 
 
50 
        push    'hd2'
 75 
        push    'hd2'
51 
        mov     eax, esp
 76 
        mov     eax, esp
52 
        mov     edx, hd2_data
 77 
        mov     edx, hd2_data
53 
        call    ide_disk_add
 78 
        call    ide_disk_add
54 
        mov     [DRIVE_DATA+4], al
 79 
        mov     [DRIVE_DATA+4], al
55 
        pop     ecx
 80 
        pop     ecx
- 
 
 81 
;-----------------------------------------------------------------------------
56 
@@:
 82 
@@:
57 
; 2d. /hd3: exists if mask 1 in [DRIVE_DATA+1] is set,
 83 
; 2d. /hd3: exists if mask 1 in [DRIVE_DATA+1] is set,
58 
;     data: hd3_data,
 84 
;     data: hd3_data,
59 
;     number of partitions: [DRIVE_DATA+5]
 85 
;     number of partitions: [DRIVE_DATA+5]
60 
        test    [DRIVE_DATA+1], byte 1
 86 
        test    [DRIVE_DATA+1], byte 1
61 
        jz      @f
 87 
        jz      @f
- 
 
 88 
 
62 
        push    'hd3'
 89 
        push    'hd3'
63 
        mov     eax, esp
 90 
        mov     eax, esp
64 
        mov     edx, hd3_data
 91 
        mov     edx, hd3_data
65 
        call    ide_disk_add
 92 
        call    ide_disk_add
66 
        mov     [DRIVE_DATA+5], al
 93 
        mov     [DRIVE_DATA+5], al
67 
        pop     ecx
 94 
        pop     ecx
- 
 
 95 
;-----------------------------------------------------------------------------
- 
 
 96 
@@:
- 
 
 97 
; 2e. /hd4: exists if mask 0x40 in [DRIVE_DATA+6] is set,
- 
 
 98 
;     data: hd4_data,
- 
 
 99 
;     number of partitions: [DRIVE_DATA+7]
- 
 
 100 
        test    [DRIVE_DATA+6], byte 0x40
- 
 
 101 
        jz      @f
- 
 
 102 
 
- 
 
 103 
        push    'hd4'
- 
 
 104 
        mov     eax, esp        ; name
- 
 
 105 
        mov     edx, hd4_data
- 
 
 106 
        call    ide_disk_add
- 
 
 107 
        mov     [DRIVE_DATA+7], al
- 
 
 108 
        pop     ecx
- 
 
 109 
;-----------------------------------------------------------------------------
- 
 
 110 
@@:
- 
 
 111 
; 2f. /hd5: exists if mask 0x10 in [DRIVE_DATA+6] is set,
- 
 
 112 
;     data: hd5_data,
- 
 
 113 
;     number of partitions: [DRIVE_DATA+8]
- 
 
 114 
        test    [DRIVE_DATA+6], byte 0x10
- 
 
 115 
        jz      @f
- 
 
 116 
 
- 
 
 117 
        push    'hd5'
- 
 
 118 
        mov     eax, esp
- 
 
 119 
        mov     edx, hd5_data
- 
 
 120 
        call    ide_disk_add
- 
 
 121 
        mov     [DRIVE_DATA+8], al
- 
 
 122 
        pop     ecx
- 
 
 123 
;-----------------------------------------------------------------------------
- 
 
 124 
@@:
- 
 
 125 
; 2g. /hd6: exists if mask 4 in [DRIVE_DATA+6] is set,
- 
 
 126 
;     data: hd6_data,
- 
 
 127 
;     number of partitions: [DRIVE_DATA+9]
- 
 
 128 
        test    [DRIVE_DATA+6], byte 4
- 
 
 129 
        jz      @f
- 
 
 130 
 
- 
 
 131 
        push    'hd6'
- 
 
 132 
        mov     eax, esp
- 
 
 133 
        mov     edx, hd6_data
- 
 
 134 
        call    ide_disk_add
- 
 
 135 
        mov     [DRIVE_DATA+9], al
- 
 
 136 
        pop     ecx
- 
 
 137 
;-----------------------------------------------------------------------------
- 
 
 138 
@@:
- 
 
 139 
; 2h. /hd7: exists if mask 1 in [DRIVE_DATA+6] is set,
- 
 
 140 
;     data: hd7_data,
- 
 
 141 
;     number of partitions: [DRIVE_DATA+10]
- 
 
 142 
        test    [DRIVE_DATA+6], byte 1
- 
 
 143 
        jz      @f
- 
 
 144 
 
- 
 
 145 
        push    'hd7'
- 
 
 146 
        mov     eax, esp
- 
 
 147 
        mov     edx, hd7_data
- 
 
 148 
        call    ide_disk_add
- 
 
 149 
        mov     [DRIVE_DATA+10], al
- 
 
 150 
        pop     ecx
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 151 
;-----------------------------------------------------------------------------
- 
 
 152 
@@:
- 
 
 153 
; 2i. /hd8: exists if mask 0x40 in [DRIVE_DATA+11] is set,
- 
 
 154 
;     data: hd8_data,
- 
 
 155 
;     number of partitions: [DRIVE_DATA+12]
- 
 
 156 
        test    [DRIVE_DATA+11], byte 0x40
- 
 
 157 
        jz      @f
- 
 
 158 
 
- 
 
 159 
        push    'hd8'
- 
 
 160 
        mov     eax, esp        ; name
- 
 
 161 
        mov     edx, hd8_data
- 
 
 162 
        call    ide_disk_add
- 
 
 163 
        mov     [DRIVE_DATA+12], al
- 
 
 164 
        pop     ecx
- 
 
 165 
;-----------------------------------------------------------------------------
- 
 
 166 
@@:
- 
 
 167 
; 2j. /hd9: exists if mask 0x10 in [DRIVE_DATA+11] is set,
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 168 
;     data: hd9_data,
- 
 
 169 
;     number of partitions: [DRIVE_DATA+13]
- 
 
 170 
        test    [DRIVE_DATA+11], byte 0x10
- 
 
 171 
        jz      @f
- 
 
 172 
 
- 
 
 173 
        push    'hd9'
- 
 
 174 
        mov     eax, esp
- 
 
 175 
        mov     edx, hd9_data
- 
 
 176 
        call    ide_disk_add
- 
 
 177 
        mov     [DRIVE_DATA+13], al
- 
 
 178 
        pop     ecx
- 
 
 179 
;-----------------------------------------------------------------------------
- 
 
 180 
@@:
- 
 
 181 
; 2k. /hd10: exists if mask 4 in [DRIVE_DATA+11] is set,
- 
 
 182 
;     data: hd10_data,
- 
 
 183 
;     number of partitions: [DRIVE_DATA+14]
- 
 
 184 
        test    [DRIVE_DATA+14], byte 4
- 
 
 185 
        jz      @f
- 
 
 186 
 
- 
 
 187 
        push    'hd10'
- 
 
 188 
        mov     eax, esp
- 
 
 189 
        mov     edx, hd10_data
- 
 
 190 
        call    ide_disk_add
- 
 
 191 
        mov     [DRIVE_DATA+9], al
- 
 
 192 
        pop     ecx
- 
 
 193 
;-----------------------------------------------------------------------------
- 
 
 194 
@@:
- 
 
 195 
; 2l. /hd11: exists if mask 1 in [DRIVE_DATA+11] is set,
- 
 
 196 
;     data: hd11_data,
- 
 
 197 
;     number of partitions: [DRIVE_DATA+15]
- 
 
 198 
        test    [DRIVE_DATA+11], byte 1
- 
 
 199 
        jz      @f
- 
 
 200 
 
- 
 
 201 
        push    'hd11'
- 
 
 202 
        mov     eax, esp
- 
 
 203 
        mov     edx, hd11_data
- 
 
 204 
        call    ide_disk_add
- 
 
 205 
        mov     [DRIVE_DATA+15], al
- 
 
 206 
        pop     ecx
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 207 
;-----------------------------------------------------------------------------
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@@:
 208 
@@:
69 
; 3. Notify the system about /bd* disks.
 209 
; 3. Notify the system about /bd* disks.
70 
; 3a. Check whether there are BIOS disks. If no, skip step 3.
 210 
; 3a. Check whether there are BIOS disks. If no, skip step 3.
71 
        xor     esi, esi
 211 
        xor     esi, esi
72 
        cmp     esi, [NumBiosDisks]
 212 
        cmp     esi, [NumBiosDisks]
73 
        jz      .nobd
 213 
        jz      .nobd
74 
; Loop over all disks.
 214 
; Loop over all disks.
75 
        push    0
 215 
        push    0
76 
        push    'bd'
 216 
        push    'bd'
77 
.bdloop:
 217 
.bdloop:
78 
; 3b. Get the drive number for using in /bd* name.
 218 
; 3b. Get the drive number for using in /bd* name.
79 
        movzx   eax, byte [BiosDisksData+esi*4]
 219 
        movzx   eax, byte [BiosDisksData+esi*4]
80 
        sub     al, 80h
 220 
        sub     al, 80h
81 
; 3c. Convert eax to decimal and store starting with [esp+3].
 221 
; 3c. Convert eax to decimal and store starting with [esp+3].
82 
; First 2 bytes in [esp] are "bd".
 222 
; First 2 bytes in [esp] are "bd".
83 
        lea     edi, [esp+2]
 223 
        lea     edi, [esp+2]
84 
; store digits in the stack, ending with -'0'
 224 
; store digits in the stack, ending with -'0'
85 
        push    -'0'
 225 
        push    -'0'
86 
@@:
 226 
@@:
87 
        xor     edx, edx
 227 
        xor     edx, edx
88 
iglobal
 228 
iglobal
89 
align 4
 229 
align 4
90 
_10     dd      10
 230 
_10     dd      10
91 
endg
 231 
endg
92 
        div     [_10]
 232 
        div     [_10]
93 
        push    edx
 233 
        push    edx
94 
        test    eax, eax
 234 
        test    eax, eax
95 
        jnz     @b
 235 
        jnz     @b
96 
; restore digits from the stack, this reverses the order;
 236 
; restore digits from the stack, this reverses the order;
97 
; add '0', stop, when zero is reached
 237 
; add '0', stop, when zero is reached
98 
@@:
 238 
@@:
99 
        pop     eax
 239 
        pop     eax
100 
        add     al, '0'
 240 
        add     al, '0'
101 
        stosb
 241 
        stosb
102 
        jnz     @b
 242 
        jnz     @b
103 
; 3e. Call the API with userdata = 80h + ecx.
 243 
; 3e. Call the API with userdata = 80h + ecx.
104 
        mov     eax, esp
 244 
        mov     eax, esp
105 
        lea     edx, [esi+80h]
 245 
        lea     edx, [esi+80h]
106 
        stdcall disk_add, bd_callbacks, eax, edx, 0
 246 
        stdcall disk_add, bd_callbacks, eax, edx, 0
107 
        test    eax, eax
 247 
        test    eax, eax
108 
        jz      @f
 248 
        jz      @f
109 
        stdcall disk_media_changed, eax, 1
 249 
        stdcall disk_media_changed, eax, 1
110 
@@:
 250 
@@:
111 
; 3f. Continue the loop.
 251 
; 3f. Continue the loop.
112 
        inc     esi
 252 
        inc     esi
113 
        cmp     esi, [NumBiosDisks]
 253 
        cmp     esi, [NumBiosDisks]
114 
        jnz     .bdloop
 254 
        jnz     .bdloop
115 
        pop     ecx ecx ; restore stack after name
 255 
        pop     ecx ecx ; restore stack after name
116 
.nobd:
 256 
.nobd:
117 
        jmp     end_search_partitions
 257 
        jmp     end_search_partitions
118 
 
 - 
 
- 
 
 258 
;-----------------------------------------------------------------------------
119 
; Helper procedure for search_partitions, adds one IDE disk.
 259 
; Helper procedure for search_partitions, adds one IDE disk.
120 
; For compatibility, number of partitions for IDE disks is kept in a separate variable,
 260 
; For compatibility, number of partitions for IDE disks is kept in a separate
121 
; so the procedure returns number of partitions.
 261 
; variable, so the procedure returns number of partitions.
122 
; eax -> name, edx -> disk data
 262 
; eax -> name, edx -> disk data
123 
proc ide_disk_add
 263 
proc ide_disk_add
124 
        stdcall disk_add, ide_callbacks, eax, edx, 0
 264 
        stdcall disk_add, ide_callbacks, eax, edx, 0
125 
        test    eax, eax
 265 
        test    eax, eax
126 
        jz      @f
 266 
        jz      @f
127 
        push    eax
 267 
        push    eax
128 
        stdcall disk_media_changed, eax, 1
 268 
        stdcall disk_media_changed, eax, 1
129 
        pop     eax
 269 
        pop     eax
130 
        mov     eax, [eax+DISK.NumPartitions]
 270 
        mov     eax, [eax+DISK.NumPartitions]
131 
        cmp     eax, 255
 271 
        cmp     eax, 255
132 
        jbe     @f
 272 
        jbe     @f
133 
        mov     eax, 255
 273 
        mov     eax, 255
134 
@@:
 274 
@@:
135 
        ret
 275 
        ret
136 
endp
 276 
endp
137 
 
 - 
 
- 
 
 277 
;-----------------------------------------------------------------------------
138 
 end_search_partitions:
 278 
end_search_partitions:
139 

            -
            
 

          

          

            -
            
 

            279
            
        pop     ecx