85 lines
1.9 KiB
ObjectPascal
85 lines
1.9 KiB
ObjectPascal
// Copyright 2021 Aaron Hance
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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{
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Drivers->Storage->ATA_ISR - Primary ATA IRQ.
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@author(Aaron Hance <ah@aaronhance.me>)
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}
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unit ATA_ISR;
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interface
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uses
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util,
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console,
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isr_types,
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isrmanager,
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IDT;
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procedure register();
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procedure hook(hook_method : uint32);
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procedure unhook(hook_method : uint32);
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implementation
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var
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Hooks : Array[1..MAX_HOOKS] of pp_hook_method;
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procedure Main(); interrupt;
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var
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i : integer;
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begin
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CLI;
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for i:=0 to MAX_HOOKS-1 do begin
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if uint32(Hooks[i]) <> 0 then Hooks[i](void($00000000));
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end;
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console.writestringln('Disk Operation Complete');
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end;
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procedure register();
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begin
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memset(uint32(@Hooks[0]), 0, sizeof(pp_hook_method)*MAX_HOOKS);
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//isrmanager.registerISR(76, @Main);
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//IDT.set_gate(76, uint32(@Main), $08, ISR_RING_0);
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end;
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procedure hook(hook_method : uint32);
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var
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i : uint32;
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begin
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for i:=0 to MAX_HOOKS-1 do begin
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if uint32(Hooks[i]) = hook_method then exit;
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end;
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for i:=0 to MAX_HOOKS-1 do begin
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if uint32(Hooks[i]) = 0 then begin
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Hooks[i]:= pp_hook_method(hook_method);
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exit;
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end;
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end;
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end;
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procedure unhook(hook_method : uint32);
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var
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i : uint32;
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begin
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for i:=0 to MAX_HOOKS-1 do begin
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If uint32(Hooks[i]) = hook_method then Hooks[i]:= nil;
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exit;
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end;
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end;
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end. |