525 lines
16 KiB
NASM
525 lines
16 KiB
NASM
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PAGE 58,132
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;******************************************************************************
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TITLE SAGE - SAGE VxD
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;******************************************************************************
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;
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; Title: SAGE.ASM - SAGE VxD
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;
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; Version: 0.060
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;
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; Date: 04/18/95
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;
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; Author: Bob Eichenlaub
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;
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;------------------------------------------------------------------------------
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;
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; Change log:
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;
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; DATE REV DESCRIPTION
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; ----------- --- -----------------------------------------------------------
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; 04/18/95 Initial version - be
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; 07/06/95 serial IRQ detection - be; credit to rjc for the basic approach
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; 05/23/97 [darrenmi] major clean-up and support multiple clients
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; for IE4
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;
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;==============================================================================
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.386p
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;******************************************************************************
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; I N C L U D E S
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;******************************************************************************
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.XLIST
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INCLUDE VMM.Inc
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INCLUDE VWIN32.Inc
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INCLUDE VPICD.Inc
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WIN41SERVICES equ 1 ; need _SHELL_Update_User_Activity_Ex service
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INCLUDE SHELL.Inc
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INCLUDE VXDLDR.Inc
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INCLUDE regdef.Inc
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INCLUDE Debug.Inc
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INCLUDE Sage.Inc
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.LIST
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;public SAGE_Update_User_Activity
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;******************************************************************************
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; V I R T U A L D E V I C E D E C L A R A T I O N
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;------------------------------------------------------------------------------
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; The VxD declaration statement defines the VxD name, version number,
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; control proc entry point, VxD ID, initialization order, and VM API
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; entry points.
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;
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; - Defined VxD ID: See VXDID.TXT for more information
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; - Init order: If serial port detection is enabled then this Vxd MUST loaded
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; before VCOMM.VxD and after VPICD.VxD,
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; See VMM.INC for the complete
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; definition of the init order of the standard devices.
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;
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;******************************************************************************
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Declare_Virtual_Device sage, 1, 0, SAGE_Control, VSageID, UNDEFINED_INIT_ORDER
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;******************************************************************************
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; D A T A
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;******************************************************************************
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;
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; Locked data
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;
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VxD_LOCKED_DATA_SEG
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Window_List dd 0, 0, 0, 0, 0, 0, 0, 0
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cClients dd 0 ; number of valid windows in window list
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Time_Out_Idle dd 10000 ; the interval between message posts
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Time_Out_Handle dd 0 ; Handle to the global time out we create
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PtrSHELL_SUUAE_INFO dd 0 ; pointer to the SHELL_SUUAE_INFO structure
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PrevActiveDisplay dd 0 ; last screen or user input activity
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PrevActiveSystem dd 0 ; last system activity
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Hooked_Proc dd 0 ; shell's user_activity entry that we hooked
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; Fake user activity info structure in case on Win95.
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FakeSUUAE_INFO _SHELL_SUUAE_INFO <0,0,0,0,0>
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VxD_LOCKED_DATA_ENDS
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;******************************************************************************
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; C O D E
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;------------------------------------------------------------------------------
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; The 'body' of the VxD is in the standard code segment.
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;******************************************************************************
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VxD_CODE_SEG
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BeginProc SAGE_Start_Idle_Timer
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push esi
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; check to see if we've already got a timer
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mov esi, [Time_Out_Handle]
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test esi, esi
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jnz start1
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; get a timer
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mov eax, [Time_Out_Idle]
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mov esi, OFFSET32 SAGE_User_Idle_Check
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VMMCall Set_Global_Time_Out
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mov [Time_Out_Handle], esi
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start1:
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pop esi
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ret
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EndProc SAGE_Start_Idle_Timer
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BeginProc SAGE_Stop_Idle_Timer
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push esi
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; check to see if we have a timer
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mov esi, [Time_Out_Handle]
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test esi, esi
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jz stop1
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; kill it
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VMMCall Cancel_Time_Out
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xor esi, esi
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mov [Time_Out_Handle], esi
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stop1:
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pop esi
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ret
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EndProc SAGE_Stop_Idle_Timer
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;******************************************************************************
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;
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; SAGE_Device_IO
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;
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; DESCRIPTION:
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; This is the routine that is called when the CreateFile or
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; DeviceIoControl is made
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;
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; ENTRY:
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; ESI = Pointer to args (see VWIN32.INC for struct definition)
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;
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; EXIT:
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; EAX = return value
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;
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; USES:
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; flags
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;
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;==============================================================================
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BeginProc SAGE_Device_IO
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mov ecx, [esi.dwIOControlCode]
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test ecx, ecx
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jnz next1
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;
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; DIOC_GETVERSION
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;
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; obtain a pointer to the shell vxd's activity timer info
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cmp [PtrSHELL_SUUAE_INFO], 0
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jne short getver1
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VxDCall SHELL_Get_Version
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cmp eax, 040Ah
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jae short haveSUUAEX
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; Running on Win95 so we don't have SHELL_Update_User_Activty_Ex service,
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; hook the shell vxd's activity service to watch activity.
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mov esi, offset32 SAGE_Update_User_Activity
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GetVxDServiceOrdinal eax, SHELL_Update_User_Activity
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VMMCall Hook_Device_Service
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mov eax, offset32 FakeSUUAE_INFO
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jmp short setSUUAE_INFO
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haveSUUAEX:
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VxDCall _SHELL_Update_User_Activity_Ex, <SUUAE_CONTINUOUS OR SUUAE_CONTINUOUS_CHECK>
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setSUUAE_INFO:
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mov [PtrSHELL_SUUAE_INFO], eax ; (eax) = ptr to SHELL_SUAAE_INFO structure
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getver1:
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xor eax, eax ; success
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ret
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next1:
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cmp ecx,-1
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jne next2
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;
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; DIOC_CLOSE
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;
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; see if we have clients to close
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cmp [cClients], 0
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jz close1
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; we do... see if it's the last one...
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dec [cClients]
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cmp [cClients], 0
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jnz close1
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; last client going away - clean up
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call SAGE_Stop_Idle_Timer
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cmp [PtrSHELL_SUUAE_INFO], offset32 FakeSUUAE_INFO
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jne short close1
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; unhook activity service
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GetVxDServiceOrdinal eax,SHELL_Update_User_Activity
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mov esi, offset32 SAGE_Update_User_Activity
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VMMCall Unhook_Device_Service
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xor eax, eax
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mov [PtrSHELL_SUUAE_INFO], eax ; clear pointer
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close1:
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xor eax,eax ; success
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ret
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next2:
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cmp ecx,1
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jne next3
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;
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; Set handle and timeout
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;
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mov ebx, [esi.lpvInBuffer]
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; Try to find window handle
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mov eax, [ebx]
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mov ecx, [cClients]
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test ecx, ecx
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jz addtolist
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ioloop:
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cmp eax, [Window_List + 4 * ecx - 4]
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je timeout
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dec ecx
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jnz ioloop
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; Can't find it - add it to window list
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mov ecx, [cClients]
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cmp ecx, 8
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jnl timeout
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addtolist:
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inc [cClients]
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mov [Window_List + 4 * ecx], eax
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timeout:
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; update timeout if specified
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mov eax, [ebx+8]
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test eax, eax
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jz config1
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mov [Time_Out_Idle], eax
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config1:
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call SAGE_Start_Idle_Timer
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xor eax, eax ; success
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ret
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next3:
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cmp ecx, 2
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jne next4
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;
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; Query last activity
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;
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mov ebx, [esi.lpvInBuffer]
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mov edx, [PtrSHELL_SUUAE_INFO]
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.errnz ssiHoldSystem-ssiHoldDisplay-1
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cmp word ptr [edx].ssiHoldDisplay, 0
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jne short lact1 ; system or display in "hold" state
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mov eax, [edx].ssiTimeLastActiveDisplay
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cmp eax, [edx].ssiTimeLastActiveSystem
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jae short lact2
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mov eax, [edx].ssiTimeLastActiveSystem
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jmp short lact2
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lact1: VMMCall Get_Last_Updated_System_Time
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lact2: mov [ebx], eax
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xor eax, eax
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ret
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next4:
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;
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; some unsupported value...
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;
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mov eax, ERROR_NOT_SUPPORTED
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ret
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EndProc SAGE_Device_IO
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VxD_CODE_ENDS
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;******************************************************************************
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; P A G E L O C K E D C O D E
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;------------------------------------------------------------------------------
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; Memory is a scarce resource. Use this only where necessary.
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;******************************************************************************
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VxD_LOCKED_CODE_SEG
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;******************************************************************************
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;
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; SAGE_Control
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;
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; DESCRIPTION:
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;
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; This is a call-back routine to handle the messages that are sent
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; to VxD's to control system operation. Every VxD needs this function
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; regardless if messages are processed or not. The control proc must
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; be in the LOCKED code segment.
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;
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; The Control_Dispatch macro used in this procedure simplifies
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; the handling of messages. To handle a particular message, add
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; a Control_Dispatch statement with the message name, followed
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; by the procedure that should handle the message.
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;
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; ENTRY:
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; EAX = Message number
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; EBX = VM Handle
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;
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;==============================================================================
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BeginProc SAGE_Control
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Control_Dispatch W32_DEVICEIOCONTROL, SAGE_Device_IO
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clc
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ret
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EndProc SAGE_Control
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BeginDoc
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;******************************************************************************
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;
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; SAGE_Update_User_Activity
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;
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; DESCRIPTION:
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;
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; This service is called by VMD, VKD to tell us that user input occured
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; ENTRY: None
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; EXIT: None
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; USES: NONE
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;==============================================================================
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EndDoc
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BeginProc SAGE_Update_User_Activity, HOOK_PROC, Hooked_Proc
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push eax
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; save off the time
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VMMCall Get_Last_Updated_System_Time
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mov [FakeSUUAE_INFO.ssiTimeLastActiveDisplay], eax
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pop eax
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jmp Hooked_Proc
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EndProc SAGE_Update_User_Activity
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VxD_LOCKED_CODE_ENDS
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VxD_PAGEABLE_CODE_SEG
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;******************************************************************************
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;
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; SAGE_User_Idle_Check
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;
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; DESCRIPTION:
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;
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; This checks if key/mouse or serial port (comm) event has occurred.
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;
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; Entry:
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; None
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; Exit:
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; None
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; Uses:
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; ALL
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;******************************************************************************
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BeginProc SAGE_User_Idle_Check,High_Freq,PUBLIC
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;
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; clear handle
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;
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xor ecx, ecx
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mov [Time_Out_Handle], ecx
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;
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; check for idleness
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;
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mov eax, [PtrSHELL_SUUAE_INFO] ; (eax) = ptr to SHELL_SUAAE_INFO structure
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.errnz ssiHoldSystem-ssiHoldDisplay-1
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cmp word ptr [eax].ssiHoldDisplay, 0
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jne short holdActive ; system or display in "hold" state
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mov ecx, [eax].ssiTimeLastActiveDisplay
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mov edx, [eax].ssiTimeLastActiveSystem
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|
|
cmp ecx, [PrevActiveDisplay]
|
||
|
|
jne notIdle ; display activity changed
|
||
|
|
cmp edx, [PrevActiveSystem]
|
||
|
|
je ResetTimer ; no display or system activity since last time
|
||
|
|
|
||
|
|
;
|
||
|
|
; Not idle so post a message to all clients who want to know
|
||
|
|
;
|
||
|
|
notIdle:
|
||
|
|
mov [PrevActiveDisplay], ecx ; update idle times for next time
|
||
|
|
mov [PrevActiveSystem], edx
|
||
|
|
holdActive:
|
||
|
|
|
||
|
|
xor eax, eax
|
||
|
|
mov ecx, [cClients]
|
||
|
|
test ecx, ecx
|
||
|
|
jz ResetTimer
|
||
|
|
|
||
|
|
loop0:
|
||
|
|
|
||
|
|
; get next window
|
||
|
|
mov ebx, [4 * ecx + Window_List - 4]
|
||
|
|
|
||
|
|
; skip if it's -1
|
||
|
|
cmp ebx, -1
|
||
|
|
je loop1
|
||
|
|
|
||
|
|
; post message
|
||
|
|
push ecx
|
||
|
|
VxDCall _SHELL_PostMessage, <ebx, WM_SAGE_MSG, eax, eax, eax, eax>
|
||
|
|
pop ecx
|
||
|
|
|
||
|
|
loop1:
|
||
|
|
dec ecx
|
||
|
|
jnz loop0
|
||
|
|
|
||
|
|
;
|
||
|
|
; reset the timer so we check again later
|
||
|
|
;
|
||
|
|
ResetTimer:
|
||
|
|
call SAGE_Start_Idle_Timer
|
||
|
|
ret
|
||
|
|
|
||
|
|
EndProc SAGE_User_Idle_Check
|
||
|
|
|
||
|
|
VxD_PAGEABLE_CODE_ENDS
|
||
|
|
|
||
|
|
|
||
|
|
;******************************************************************************
|
||
|
|
; R E A L M O D E C O D E
|
||
|
|
;******************************************************************************
|
||
|
|
|
||
|
|
;******************************************************************************
|
||
|
|
;
|
||
|
|
; Real mode initialization code
|
||
|
|
;
|
||
|
|
; DESCRIPTION:
|
||
|
|
; This code is called when the system is still in real mode, and
|
||
|
|
; the VxDs are being loaded.
|
||
|
|
;
|
||
|
|
; This routine as coded shows how a VxD (with a defined VxD ID)
|
||
|
|
; could check to see if it was being loaded twice, and abort the
|
||
|
|
; second without an error message. Note that this would require
|
||
|
|
; that the VxD have an ID other than Undefined_Device_ID. See
|
||
|
|
; the file VXDID.TXT more details.
|
||
|
|
;
|
||
|
|
; ENTRY:
|
||
|
|
; AX = VMM Version
|
||
|
|
; BX = Flags
|
||
|
|
; Bit 0: duplicate device ID already loaded
|
||
|
|
; Bit 1: duplicate ID was from the INT 2F device list
|
||
|
|
; Bit 2: this device is from the INT 2F device list
|
||
|
|
; EDX = Reference data from INT 2F response, or 0
|
||
|
|
; SI = Environment segment, passed from MS-DOS
|
||
|
|
;
|
||
|
|
; EXIT:
|
||
|
|
; BX = ptr to list of pages to exclude (0, if none)
|
||
|
|
; SI = ptr to list of instance data items (0, if none)
|
||
|
|
; EDX = DWORD of reference data to be passed to protect mode init
|
||
|
|
;
|
||
|
|
;==============================================================================
|
||
|
|
|
||
|
|
VxD_REAL_INIT_SEG
|
||
|
|
|
||
|
|
BeginProc SAGE_Real_Init_Proc
|
||
|
|
|
||
|
|
test bx, Duplicate_Device_ID ; check for already loaded
|
||
|
|
jnz short duplicate ; jump if so
|
||
|
|
|
||
|
|
xor bx, bx ; no exclusion table
|
||
|
|
xor si, si ; no instance data table
|
||
|
|
xor edx, edx ; no reference data
|
||
|
|
|
||
|
|
mov ax, Device_Load_Ok
|
||
|
|
ret
|
||
|
|
|
||
|
|
duplicate:
|
||
|
|
mov ax, Abort_Device_Load + No_Fail_Message
|
||
|
|
ret
|
||
|
|
|
||
|
|
EndProc SAGE_Real_Init_Proc
|
||
|
|
|
||
|
|
|
||
|
|
VxD_REAL_INIT_ENDS
|
||
|
|
|
||
|
|
|
||
|
|
END
|