From a4a3a25553674dd204e265bff8b8855829b67b16 Mon Sep 17 00:00:00 2001
From: kieron <kieron@6dbc8c32-bb84-406f-8558-d1cf31a0ab0c>
Date: Sun, 22 Oct 2017 01:48:39 +0000
Subject: [PATCH] Fix

git-svn-id: https://spexeah.com:8443/svn/Asuro@210 6dbc8c32-bb84-406f-8558-d1cf31a0ab0c
---
 src/driver/mouse.pas |  25 ++++++++
 src/isr/isr44.pas    | 134 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 159 insertions(+)
 create mode 100644 src/driver/mouse.pas
 create mode 100644 src/isr/isr44.pas

diff --git a/src/driver/mouse.pas b/src/driver/mouse.pas
new file mode 100644
index 00000000..858d2432
--- /dev/null
+++ b/src/driver/mouse.pas
@@ -0,0 +1,25 @@
+unit mouse;
+
+interface
+
+uses 
+    console,
+    util,
+    isr44;
+
+procedure init();
+
+implementation
+
+procedure callback(packet : void);
+begin
+    console.writestring('Mouse Packet: ');
+    console.writehexln(DWORD(packet));
+end;
+
+procedure init();
+begin
+    isr44.hook(uint32(@callback));
+end;
+
+end.
\ No newline at end of file
diff --git a/src/isr/isr44.pas b/src/isr/isr44.pas
new file mode 100644
index 00000000..abc4af2a
--- /dev/null
+++ b/src/isr/isr44.pas
@@ -0,0 +1,134 @@
+{ ************************************************
+  * Asuro
+  * Unit: Drivers/ISR45
+  * Description: Mouse ISR (IRQ12)
+  ************************************************
+  * Author: K Morris
+  * Contributors: 
+  ************************************************ }
+
+unit isr44;
+
+interface
+
+uses
+    util,
+    console,
+    isr_types,
+    IDT;
+
+procedure register();
+procedure hook(hook_method : uint32);
+procedure unhook(hook_method : uint32);
+
+implementation
+
+var
+    Hooks : Array[1..MAX_HOOKS] of pp_hook_method;
+    Cycle : uint8 = 0;
+    Mouse_Byte : Array[0..2] of uint8;
+    Packet : uint32;
+
+procedure mouse_wait(w_type : uint8);
+var
+    timeout : uint32;
+
+begin
+    timeout:= 100000;
+    if (w_type = 0) then begin
+        while (timeout > 0) do begin
+            if ((inb($64) AND $01) = $01) then exit;
+            timeout:= timeout-1;
+        end;
+    end else begin
+        while (timeout > 0) do begin
+            if ((inb($64) AND 2) = 0) then exit;
+            timeout := timeout - 1;
+        end;
+    end;
+end;
+
+procedure mouse_write(value : uint8);
+begin
+    mouse_wait(1);
+    outb($64, $D4);
+    mouse_wait(1);
+    outb($60, value);
+end;
+
+function mouse_read : uint8;
+begin
+    mouse_wait(0);
+    mouse_read:= inb($60);
+end;
+
+procedure Main(); interrupt;
+var
+    i : integer;
+    
+begin
+    Mouse_Byte[Cycle]:= mouse_read;
+    inc(Cycle);
+    if Cycle > 2 then begin
+        Cycle:= 0;
+        Packet:= (Mouse_Byte[0] SHL 24) OR (Mouse_Byte[1] SHL 16) OR (Mouse_Byte[2] SHL 8) OR ($FF);
+        for i:=0 to MAX_HOOKS-1 do begin
+            if uint32(Hooks[i]) <> 0 then Hooks[i](void(Packet));
+        end;
+    end;
+    outb($20, $20);
+    outb($A0, $20);
+end;
+
+procedure register();
+var
+    status : uint8;
+    bm     : PBitMask;
+    ak     : uint8;
+
+begin
+    memset(uint32(@Hooks[0]), 0, sizeof(pp_hook_method)*MAX_HOOKS);
+    mouse_wait(1);
+    outb($64, $A8);
+    mouse_wait(1);
+    outb($64, $20);
+    mouse_wait(0);
+    status:= inb($60) OR $02;
+    mouse_wait(1);
+    outb($64, $60);
+    mouse_wait(1);
+    outb($60, status);
+    mouse_write($F6);
+    mouse_read();
+    mouse_write($F4);
+    mouse_read();
+    IDT.set_gate(44, uint32(@Main), $08, ISR_RING_0);
+end;
+
+procedure hook(hook_method : uint32);
+var
+    i : uint32;
+
+begin
+    for i:=0 to MAX_HOOKS-1 do begin
+        if uint32(Hooks[i]) = hook_method then exit;
+    end;
+    for i:=0 to MAX_HOOKS-1 do begin
+        if uint32(Hooks[i]) = 0 then begin
+            Hooks[i]:= pp_hook_method(hook_method);
+            exit;
+        end;
+    end;
+end;
+
+procedure unhook(hook_method : uint32);
+var
+    i : uint32;
+begin
+    for i:=0 to MAX_HOOKS-1 do begin
+        If uint32(Hooks[i]) = hook_method then Hooks[i]:= nil;
+        exit;
+    end;
+end;
+
+end.
\ No newline at end of file