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| 3 | ;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;; |
3 | ;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;; |
| 4 | ;; Distributed under terms of the GNU General Public License ;; |
4 | ;; Distributed under terms of the GNU General Public License ;; |
| 5 | ;; ;; |
5 | ;; ;; |
| 6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
6 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
| Line 7... | Line 7... | ||
| 7 | 7 | ||
| Line 8... | Line 8... | ||
| 8 | $Revision: 2455 $ |
8 | $Revision: 2643 $ |
| 9 | 9 | ||
| 10 | 10 | ||
| Line 943... | Line 943... | ||
| 943 | jnz @f |
943 | jnz @f |
| 944 | mov edx, ecx |
944 | mov edx, ecx |
| 945 | @@: |
945 | @@: |
| 946 | ret |
946 | ret |
| 947 | ; \end{diamond} |
947 | ; \end{diamond} |
| - | 948 | ||
| - | 949 | reserve_hd1: |
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| - | 950 | ||
| - | 951 | cli |
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| - | 952 | cmp [hd1_status], 0 |
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| - | 953 | je reserve_ok1 |
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| - | 954 | ||
| - | 955 | sti |
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| - | 956 | call change_task |
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| - | 957 | jmp reserve_hd1 |
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| - | 958 | ||
| - | 959 | reserve_ok1: |
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| - | 960 | ||
| - | 961 | push eax |
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| - | 962 | mov eax, [CURRENT_TASK] |
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| - | 963 | shl eax, 5 |
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| - | 964 | mov eax, [eax+CURRENT_TASK+TASKDATA.pid] |
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| - | 965 | mov [hd1_status], eax |
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| - | 966 | pop eax |
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| - | 967 | sti |
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| - | 968 | ret |
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| - | 969 | ;******************************************** |
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| - | 970 | ||
| - | 971 | uglobal |
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| - | 972 | hd_in_cache db ? |
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| - | 973 | endg |
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| - | 974 | ||
| - | 975 | reserve_hd_channel: |
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| - | 976 | ; BIOS disk accesses are protected with common mutex hd1_status |
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| - | 977 | ; This must be modified when hd1_status will not be valid! |
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| - | 978 | cmp [hdpos], 0x80 |
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| - | 979 | jae .ret |
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| - | 980 | cmp [hdbase], 0x1F0 |
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| - | 981 | jne .IDE_Channel_2 |
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| - | 982 | .IDE_Channel_1: |
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| - | 983 | cli |
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| - | 984 | cmp [IDE_Channel_1], 0 |
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| - | 985 | je .reserve_ok_1 |
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| - | 986 | sti |
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| - | 987 | call change_task |
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| - | 988 | jmp .IDE_Channel_1 |
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| - | 989 | .IDE_Channel_2: |
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| - | 990 | cli |
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| - | 991 | cmp [IDE_Channel_2], 0 |
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| - | 992 | je .reserve_ok_2 |
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| - | 993 | sti |
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| - | 994 | call change_task |
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| - | 995 | jmp .IDE_Channel_2 |
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| - | 996 | .reserve_ok_1: |
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| - | 997 | mov [IDE_Channel_1], 1 |
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| - | 998 | push eax |
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| - | 999 | mov al, 1 |
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| - | 1000 | jmp @f |
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| - | 1001 | .reserve_ok_2: |
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| - | 1002 | mov [IDE_Channel_2], 1 |
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| - | 1003 | push eax |
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| - | 1004 | mov al, 3 |
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| - | 1005 | @@: |
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| - | 1006 | cmp [hdid], 1 |
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| - | 1007 | sbb al, -1 |
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| - | 1008 | mov [hd_in_cache], al |
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| - | 1009 | pop eax |
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| - | 1010 | sti |
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| - | 1011 | .ret: |
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| - | 1012 | ret |
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| - | 1013 | ||
| - | 1014 | free_hd_channel: |
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| - | 1015 | ; see comment at reserve_hd_channel |
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| - | 1016 | cmp [hdpos], 0x80 |
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| - | 1017 | jae .ret |
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| - | 1018 | cmp [hdbase], 0x1F0 |
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| - | 1019 | jne .IDE_Channel_2 |
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| - | 1020 | .IDE_Channel_1: |
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| - | 1021 | mov [IDE_Channel_1], 0 |
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| - | 1022 | .ret: |
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| - | 1023 | ret |
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| - | 1024 | .IDE_Channel_2: |
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| - | 1025 | mov [IDE_Channel_2], 0 |
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| - | 1026 | ret |
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| - | 1027 | ;******************************************** |
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