A overview of the win32k device driver.
----------------------------------------

Notation:
---------

--> <routine name>                      (<source module>)
    A Call to the given routine. The procedings of that routine
    continues at the next indent level.
<-- [return value description]
<some state description>:
<action>
    Identifing when and what happens.


Init packet - $elf
-----------------------
_strategyAsm0                                               (devFirst.asm)
_strategyAsm                                                (devFirst.asm)
--> strategy(PRPH pRpH, unsigned short usDev)               (d16strat.c)
    init - dev 0:
    --> dev0Init(PRPINITIN pRpIn, PRPINITOUT pRpOut)        (d16init.c)
        <-- (STATUS_DONE - can't fail)
    <-- (fwd)
<-- (fwd)


Init packet - $win32k
----------------------
_strategyAsm1                                               (devFirst.asm)
_strategyAsm                                                (devFirst.asm)
--> strategy(PRPH pRpH, unsigned short usDev)               (d16strat.c)
    init - dev 1:
    --> dev1Init(PRPINITIN pRpIn, PRPINITOUT pRpOut)        (d16init.c)
        --> ProbeKrnl                                       (probkrnl.c)
            <Opens $elf>
            <issues IO Ctrl to $elf - D16_IOCTL_GETKRNLINFO>
            <Opens $elf>
            <issues IO Ctrl to $elf - D16_IOCTL_VERIFYIMPORTTAB>
            <-- (NO_ERROR - may fail)
        <Opens $elf>
        <issue IO Ctrl to $elf - D16_IOCTL_RING0INIT>
        <-- (STATUS_DONE - may fail)
    <-- (fwd)
<-- (fwd)


D16_IOCTL_GETKERNELINFO packet
------------------------------
_strategyAsm0                                               (devFirst.asm)
_strategyAsm                                                (devFirst.asm)
--> strategy(PRPH pRpH, unsigned short usDev)               (d16strat.c)
    gen IO-Ctrl - dev 0:
    --> dev0GenIOCtl(PRP_GENIOCTL pRp)                      (d16strat.c)
        D16_IOCTL_GETKERNELINFO:
        --> CallGetKernelInfo32(ULONG addressKrnlInfoBuf)   (devfirst.asm)
            --> GetKernelInfo32(PKRNLINFO pKrnlInfo)        (d32init.c)
                --> GetOS2KrnlMTE(void)                     (devfirst.asm)
                    <--
                <--
            <--
        <--
    <--
<--

D16_IOCTL_VERIFYIMPORTTAB packet
--------------------------------
_strategyAsm0                                               (devFirst.asm)
_strategyAsm                                                (devFirst.asm)
--> strategy(PRPH pRpH, unsigned short usDev)               (d16strat.c)
    gen IO-Ctrl - dev 0:
    --> dev0GenIOCtl(PRP_GENIOCTL pRp)                      (d16strat.c)
        D16_IOCTL_VERIFYIMPORTTAB:
        --> CallVerifyImportTab32(void)                     (devlast.c)
            --> VerifyImportTab32(void)                     (d32init.c)
                --> GetOS2KrnlMTE(void)                     (devfirst.asm)
                    <--
                --> interpretFunctionProlog32(..)
                    <--
                --> interpretFunctionProlog16(..)
                    <--
                <--
            <--
        <--
    <--
<--


D16_IOCTL_RING0INIT packet
---------------------------
_strategyAsm0                                               (devFirst.asm)
_strategyAsm                                                (devFirst.asm)
--> strategy(PRPH pRpH, unsigned short usDev)               (d16strat.c)
    gen IO-Ctrl - dev 0:
    --> dev0GenIOCtl(PRP_GENIOCTL pRp)                      (d16strat.c)
        D16_IOCTL_RING0INIT:
        --> R0Init16(PRP_GENIOCTL pRp)                      (d16init.c)
            --> CallR0Init32(LIN pRpInit)                   (devlast.asm)
                --> R0Init32(RP32INIT *pRpInit)             (d32init.c)
                    --> heapInit(unsigned cbSize)           (malloc.c)
                        ...
                        <--
                    --> ldrInit(void)                       (ldr.cpp)
                        ...
                        <--
                    --> procInit(void)                      (d32init.c)
                        ...
                        <--
                    <--
                <--
            <--
        <--
    <--
<--