Unit PlatformQEMUVPB

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Description


Ultibo Platform Interface unit for QEMU VersatilePB

Constants



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QEMUVPB specific constants QEMUVPB_*


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QEMUVPB page table QEMUVPB_PAGE_TABLE_*


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QEMUVPB vector table QEMUVPB_VECTOR_TABLE_*


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QEMUVPB CPU count QEMUVPB_CPU_*


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QEMUVPB SWI QEMUVPB_SWI_*


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QEMUVPB kernel name QEMUVPB_KERNEL_*


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PL110 specific constants PL110_*


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PL110 mode PL110_MODE_*


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PL110 register offset PL110_CLCD_*


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PL110 CLCD timing0 PL110_CLCD_TIMING0_*


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PL110 CLCD timing1 PL110_CLCD_TIMING1_*


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PL110 CLCD timing2 PL110_CLCD_TIMING2_*


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PL110 CLCD timing3 PL110_CLCD_TIMING3_*


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PL110 CLCD control PL110_CLCD_CONTROL_*


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PL110 control PL110_CONTROL_*


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PL110 timing0 PL110_TIMING0_*


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PL110 timing1 PL110_TIMING1_*


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PL110 timing2 PL110_TIMING2_*


Type definitions



PL110 CLCD registers

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PPL110CLCDRegisters = ^TPL110CLCDRegisters;

TPL110CLCDRegisters = record

PL110 framebuffer

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PPL110Framebuffer = ^TPL110Framebuffer;

TPL110Framebuffer = record


Public variables



QEMUVPB specific Ultibo variables

QEMUVPBInitialized:Boolean;

Clock variables

ClockGetLast:LongWord; Value of 24MHz Counter on last ClockGetCount or ClockGetTotal call
ClockGetBase:Int64; Base value for 64-bit clock, incremented each time the 24MHz Counter rolls over (Only accurate if ClockGetCount/ClockGetTotal is called at least once per 178 seconds)
ClockGetLock:THandle = INVALID_HANDLE_VALUE; Lock handle for creating 64-bit clock from a 32-bit register
ClockGetTimer:THandle = INVALID_HANDLE_VALUE; Timer handle for ensuring clock is read periodically to maintain accurracy

Timer variables

Timer0Registers:PSP804TimerRegisters; Use Timer0 for Clock
Timer2Registers:PSP804TimerRegisters; Use Timer2 for Scheduler

Interrupt variables

PrimaryInterruptRegisters:PPL190InterruptRegisters;
SecondaryInterruptRegisters:PVersatilePBInterruptRegisters;
InterruptEntries:array[0..(VERSATILEPB_IRQ_COUNT - 1)] of PInterruptEntry;

System call

SystemCallEntries:array[0..QEMUVPB_SWI_COUNT - 1] of TSystemCallEntry;

IRQ/FIQ

IRQEnabled:array[0..1] of LongWord; 2 groups of IRQs to Enable/Disable (See: TPL190InterruptRegisters)
FIQEnabled:array[0..1] of LongWord; 2 groups of FIQs to Enable/Disable (See: TPL190InterruptRegisters)


Function declarations



Initialization functions

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procedure QEMUVPBInit;
Description: To be documented


QEMUVPB platform functions

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procedure QEMUVPBBoardInit;
Description: To be documented


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procedure QEMUVPBMemoryInit;
Description: To be documented


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procedure QEMUVPBClockInit;
Description: To be documented


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procedure QEMUVPBPowerInit;
Description: To be documented


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procedure QEMUVPBInterruptInit;
Description: To be documented


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procedure QEMUVPBPeripheralInit;
Description: To be documented


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procedure QEMUVPBFramebufferInit;
Description: To be documented


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procedure QEMUVPBPageTableInit;
Description: Initialize the Hardware Page Tables before enabling the MMU


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function QEMUVPBRequestExIRQ(CPUID,Number:LongWord; Handler:TInterruptHandler; HandlerEx:TInterruptExHandler; Parameter:Pointer):LongWord;
Description: Request registration of the supplied handler to the specified IRQ number


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function QEMUVPBReleaseExIRQ(CPUID,Number:LongWord; Handler:TInterruptHandler; HandlerEx:TInterruptExHandler; Parameter:Pointer):LongWord;
Description: Request deregistration of the supplied handler from the specified IRQ number


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function QEMUVPBRequestExFIQ(CPUID,Number:LongWord; Handler:TInterruptHandler; HandlerEx:TInterruptExHandler; Parameter:Pointer):LongWord;
Description: Request registration of the supplied handler to the specified FIQ number


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function QEMUVPBReleaseExFIQ(CPUID,Number:LongWord; Handler:TInterruptHandler; HandlerEx:TInterruptExHandler; Parameter:Pointer):LongWord;
Description: Request deregistration of the supplied handler from the specified FIQ number


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function QEMUVPBRegisterInterrupt(Number,Mask,Priority,Flags:LongWord; Handler:TSharedInterruptHandler; Parameter:Pointer):LongWord;
Description: Request registration of the supplied handler to the specified interrupt number (Where Applicable)


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function QEMUVPBDeregisterInterrupt(Number,Mask,Priority,Flags:LongWord; Handler:TSharedInterruptHandler; Parameter:Pointer):LongWord;
Description: Request deregistration of the supplied handler from the specified interrupt number (Where Applicable)


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function QEMUVPBRegisterSystemCallEx(CPUID,Number:LongWord; Handler:TSystemCallHandler; HandlerEx:TSystemCallExHandler):LongWord;
Description: Request registration of the supplied extended handler to the specified System Call number


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function QEMUVPBDeregisterSystemCallEx(CPUID,Number:LongWord; Handler:TSystemCallHandler; HandlerEx:TSystemCallExHandler):LongWord;
Description: Request deregistration of the supplied extended handler from the specified System Call number


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function QEMUVPBGetInterruptEntry(Number,Instance:LongWord; var Interrupt:TInterruptEntry):LongWord;
Description: Get the interrupt entry for the specified interrupt number and instance


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function QEMUVPBGetSystemCallEntry(Number:LongWord):TSystemCallEntry;
Description: Get the system call entry for the specified system call number


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function QEMUVPBSystemRestart(Delay:LongWord):LongWord;
Description: To be documented


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function QEMUVPBSystemShutdown(Delay:LongWord):LongWord;
Description: To be documented


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function QEMUVPBClockGetCount:LongWord;
Description: Gets the current system clock count (32 least significant bits of total)


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function QEMUVPBClockGetTotal:Int64;
Description: Gets the total system clock count


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procedure QEMUVPBClockGetTimer(Data:Pointer);
Description: Timer procedure to ensure ClockGetTotal is called at least once per rollover interval


QEMUVPB thread functions

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procedure QEMUVPBSchedulerInit;
Description: Initialize the scheduler interrupt on the boot CPU


QEMUVPB clock functions

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procedure QEMUVPBClockInterrupt(Parameter:Pointer);
Description: Interrupt handler function for the clock interrupt


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procedure QEMUVPBClockUpdate(Cycles:LongWord; var Last:LongWord);
Description: Setup a clock interrupt to trigger after the specified number of clock cycles


QEMUVPB scheduler functions

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function QEMUVPBSchedulerInterrupt(CPUID:LongWord; Thread:TThreadHandle; Parameter:Pointer):TThreadHandle;
Description: Interrupt handler function for the scheduler interrupt


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procedure QEMUVPBSchedulerUpdate(Cycles:LongWord; var Last:LongWord);
Description: Setup a scheduler interrupt to trigger after the specified number of clock cycles


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procedure QEMUVPBSchedulerSystemCall(Request:PSystemCallRequest);
Description: System Call handler for the scheduler


QEMUVPB framebuffer functions

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function QEMUVPBFramebufferDeviceAllocate(Framebuffer:PFramebufferDevice; Properties:PFramebufferProperties):LongWord;
Description: Implementation of FramebufferDeviceAllocate API for PL110 Framebuffer


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function QEMUVPBFramebufferDeviceRelease(Framebuffer:PFramebufferDevice):LongWord;
Description: Implementation of FramebufferDeviceRelease API for PL110 Framebuffer


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function QEMUVPBFramebufferDeviceBlank(Framebuffer:PFramebufferDevice; Blank:Boolean):LongWord;
Description: Implementation of FramebufferDevicBlank API for PL110 Framebuffer


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function QEMUVPBFramebufferDeviceCommit(Framebuffer:PFramebufferDevice; Address:PtrUInt; Size,Flags:LongWord):LongWord;
Description: Implementation of FramebufferDeviceCommit API for PL110 Framebuffer


QEMUVPB helper functions

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procedure QEMUVPBBootBlink; assembler; nostackframe;
Description: Output characters to UART0 without dependency on any other RTL setup


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procedure QEMUVPBBootOutput(Value:LongWord);
Description: Output characters to UART0 without dependency on any other RTL setup


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procedure QEMUVPBBootConsoleStart;
Description: To be documented


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procedure QEMUVPBBootConsoleWrite(const Value:String);
Description: To be documented


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procedure QEMUVPBBootConsoleWriteEx(const Value:String; X,Y:LongWord);
Description: To be documented


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function QEMUVPBBootConsoleGetX:LongWord;
Description: To be documented


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function QEMUVPBBootConsoleGetY:LongWord;
Description: To be documented


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