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;; Copyright (C) KolibriOS team 2011-2012. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2011-2012. 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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;;                                                              ;;
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;;                                                              ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision: 3202 $
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$Revision: 3460 $
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; =============================================================================
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; =============================================================================
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; ================================= Constants =================================
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; ================================= Constants =================================
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; 0 if media is not inserted, nonzero otherwise.
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; 0 if media is not inserted, nonzero otherwise.
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        MediaUsed       db ?
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        MediaUsed       db ?
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; 0 if media fields are not used, nonzero otherwise. If .MediaRefCount is
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; 0 if media fields are not used, nonzero otherwise. If .MediaRefCount is
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; nonzero, this field is nonzero too; however, when .MediaRefCount goes
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; nonzero, this field is nonzero too; however, when .MediaRefCount goes
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; to zero, there is some time interval during which media object is still used.
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; to zero, there is some time interval during which media object is still used.
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        align 4
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                        dw ? ; padding
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; The following fields are not valid unless either .MediaInserted is nonzero
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; The following fields are not valid unless either .MediaInserted is nonzero
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; or they are accessed from a code which has obtained the reference when
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; or they are accessed from a code which has obtained the reference when
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; .MediaInserted was nonzero.
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; .MediaInserted was nonzero.
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        MediaRefCount   dd ?
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        MediaRefCount   dd ?
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; Count of active references to the media object. One reference is kept during
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; Count of active references to the media object. One reference is kept during
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; Media is not inserted, reference counter is 1.
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; Media is not inserted, reference counter is 1.
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        lea     ecx, [esi+DISK.MediaLock]
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        lea     ecx, [esi+DISK.MediaLock]
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        call    mutex_init
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        call    mutex_init
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        xor     eax, eax
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        xor     eax, eax
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        mov     dword [esi+DISK.MediaInserted], eax
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        mov     dword [esi+DISK.MediaInserted], eax
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        mov     [esi+DISK.MediaRefCount], eax
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        inc     eax
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        inc     eax
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        mov     [esi+DISK.RefCount], eax
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        mov     [esi+DISK.RefCount], eax
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; The DISK structure is initialized.
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; The DISK structure is initialized.
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; 5. Insert the new structure to the global list.
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; 5. Insert the new structure to the global list.
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; 5a. Acquire the mutex.
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; 5a. Acquire the mutex.