; ; Copyright (c) Microsoft Corporation, 1988 ; ; SUBTTL DevHlp - Definitions for device driver helper functions DevHlp_SchedClock EQU 0 ; 0 Called each timer tick DevHlp_DevDone EQU 1 ; 1 Device I/O complete DevHlp_Yield EQU 2 ; 2 yield CPU if resched set DevHlp_TCYield EQU 3 ; 3 yield to time critical task DevHlp_Block EQU 4 ; 4 Block on event DevHlp_Run EQU 5 ; 5 Unblock process DevHlp_SemRequest EQU 6 ; 6 claim a semaphore DevHlp_SemClear EQU 7 ; 7 release a semaphore DevHlp_SemHandle EQU 8 ; 8 obtain a semaphore handle DevHlp_PushRequest EQU 9 ; 9 Push the request DevHlp_PullRequest EQU 10 ; A Pull next request from Q DevHlp_PullParticular EQU 11 ; B Pull a specific request DevHlp_SortRequest EQU 12 ; C Push request in sorted order DevHlp_AllocReqPacket EQU 13 ; D allocate request packet DevHlp_FreeReqPacket EQU 14 ; E free request packet DevHlp_QueueInit EQU 15 ; F Init/Clear char queue DevHlp_QueueFlush EQU 16 ; 10 flush queue DevHlp_QueueWrite EQU 17 ; 11 Put a char in the queue DevHlp_QueueRead EQU 18 ; 12 Get a char from the queue DevHlp_Lock EQU 19 ; 13 Lock segment DevHlp_Unlock EQU 20 ; 14 Unlock segment DevHlp_PhysToVirt EQU 21 ; 15 convert physical address to virtual DevHlp_VirtToPhys EQU 22 ; 16 convert virtual address to physical DevHlp_PhysToUVirt EQU 23 ; 17 convert physical to LDT DevHlp_UnPhysToVirt EQU 50 ; 32 done with phystovirt selector. DevHlp_AllocPhys EQU 24 ; 18 allocate physical memory DevHlp_FreePhys EQU 25 ; 19 free physical memory DevHlp_SetROMVector EQU 26 ; 1A set a ROM service routine vector DevHlp_SetIRQ EQU 27 ; 1B set an IRQ interrupt DevHlp_UnSetIRQ EQU 28 ; 1C unset an IRQ interrupt DevHlp_SetTimer EQU 29 ; 1D set timer request handler DevHlp_ResetTimer EQU 30 ; 1E unset timer request handler DevHlp_MonitorCreate EQU 31 ; 1F create a monitor DevHlp_Register EQU 32 ; 20 install a monitor DevHlp_DeRegister EQU 33 ; 21 remove a monitor DevHlp_MonWrite EQU 34 ; 22 pass data records to monitor DevHlp_MonFlush EQU 35 ; 23 remove all data from stream DevHlp_GetDOSVar EQU 36 ; 24 Return pointer to DOS variable DevHlp_SendEvent EQU 37 ; 25 an event occurred DevHlp_ROMCritSection EQU 38 ; 26 ROM Critical Section DevHlp_VerifyAccess EQU 39 ; 27 Verify access to memory DevHlp_RAS EQU 40 ; 28 Put info in RAS trace buffer DevHlp_AttachDD equ 2Ah ; Attack a device driver DevHlp_InternalError equ 2Bh ; Panic DevHlp_AllocGDTSel EQU 45 ; 2D Allocate GDT Selectors DevHlp_PhysToGDTSel EQU 46 ; 2E Convert phys addr to GDT sel DevHlp_RealToProt EQU 47 ; 2F Change from real to protected mode DevHlp_ProtToReal EQU 48 ; 30 Change from protected to real mode DevHlp_EOI EQU 49 ; 31 Send EOI to PIC DevHlp_UnPhysToVirt EQU 50 ; 32 mark completion of PhysToVirt DevHlp_TickCount EQU 51 ; 33 modify timer DevHlp_GetLIDEntry equ 34h DevHlp_FreeLIDEntry equ 35h DevHlp_ABIOSCall equ 36h DevHlp_ABIOSCommonEntry equ 37h DevHlp_RegisterStackUse equ 38h DevHlp_VideoPause equ 3Ch DevHlp_DispMsg equ 3Dh event_SM_Mou equ 0 ; event was Session Manager-mouse@@ event_MUF equ 0 ; (OBSOLETE) event was muf key event_CtrlBrk equ 1 ; event was Ctrl-Break event_CtrlC equ 2 ; event was Ctrl-C event_CtrlScrLk equ 3 ; event was Ctrl-ScrollLock event_CtrlPrtSc equ 4 ; event was Ctrl-PrtSc event_ShftPrtSc equ 5 ; event was Shift-PrtSc event_SM_Kbd equ 6 ; event was Session Manager -keyboard@@ event_count equ 7 ; @@ Number of possible events ; Character Queue structure ; ; QueueInit must be called before any other queue manipulation ; subroutine. The Qsize field must be initialized before ; calling QueueInit. CharQueue STRUC Qsize DW ? ; Size of queue in bytes Qchrout DW ? ; Index of next char out Qcount DW ? ; Count of characters in the queue Qbase DB ? ; Queue buffer CharQueue ENDS RASrouter struc pretrace_addr dw 0 preminor dw 0 posttrace_addr dw 0 postminor dw 0 RASrouter ends