Unit PlatformRPi2

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Description

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The RPi2 B has the Power LED connected to GPIO Pin 35 (Activity LED is now on GPIO Pin 47).

The RPi3 B has the Activity LED connected to the GPU, access is via a Virtual GPIO (Power LED appears to be unavailable).

Constants

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To be documented

Type definitions

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To be documented

Public variables

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To be documented

Function declarations

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Initialization functions

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procedure RPi2Init;

Description: To be documented

Note	None documented

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procedure RPi2SecondarySwitch; assembler; nostackframe;

Description: Secondary CPU switch from HYP mode handler

Note	None documented

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procedure RPi2SecondarySecure; assembler; nostackframe;

Description: Secondary CPU switch to secure mode handler

Note	None documented

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procedure RPi2SecondaryHandler; assembler; nostackframe;

Description: Secondary CPU startup handler routine

Note	None documented

RPi2 platform functions

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procedure RPi2SMPInit;

Description: To be documented

Note	None documented

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procedure RPi2BoardInit;

Description: To be documented

Note	None documented

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procedure RPi2MemoryInit;

Description: To be documented

Note	None documented

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procedure RPi2ClockInit;

Description: To be documented

Note	None documented

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procedure RPi2PowerInit;

Description: To be documented

Note	None documented

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procedure RPi2MailboxInit;

Description: To be documented

Note	None documented

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procedure RPi2InterruptInit;

Description: To be documented

Note	None documented

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procedure RPi2PeripheralInit;

Description: To be documented

Note	None documented

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procedure RPi2FramebufferInit;

Description: To be documented

Note	None documented

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procedure RPi2PageTableInit;

Description: Initialize the Hardware Page Tables before enabling the MMU

Note	None documented

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procedure RPi2PowerLEDEnable;

Description: To be documented

Note	None documented

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procedure RPi2PowerLEDOn;

Description: To be documented

Note	None documented

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procedure RPi2PowerLEDOff;

Description: To be documented

Note	None documented

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procedure RPi2ActivityLEDEnable;

Description: To be documented

Note	None documented

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procedure RPi2ActivityLEDOn;

Description: To be documented

Note	None documented

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procedure RPi2ActivityLEDOff;

Description: To be documented

Note	None documented

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function RPi2MailboxReceive(Mailbox,Channel:LongWord):LongWord;

Description: Receive from specified mailbox on specified channel

Note	Data = first 28 bits, Channel = last 4 bits

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procedure RPi2MailboxSend(Mailbox,Channel,Data:LongWord);

Description: Send to specified mailbox on specified channel

Note	Data = first 28 bits, Channel = last 4 bits

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function RPi2MailboxCall(Mailbox,Channel,Data:LongWord; var Response:LongWord):LongWord;

Description: Perform a transaction (Send/Receive) to specified mailbox on specified channel

Note	Data = first 28 bits, Channel = last 4 bits Data pointer must be 16 byte aligned to allow for the 4 bit channel number

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function RPi2MailboxCallEx(Mailbox,Channel,Data:LongWord; var Response:LongWord; Timeout:LongWord):LongWord;

Description: Perform a transaction (Send/Receive) to specified mailbox on specified channel

Note	Data = first 28 bits, Channel = last 4 bits Data pointer must be 16 byte aligned to allow for the 4 bit channel number

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function RPi2MailboxPropertyCall(Mailbox,Channel:LongWord; Data:Pointer; var Response:LongWord):LongWord;

Description: Perform a property tag transaction (Send/Receive) to specified mailbox on specified channel

Note	Data = first 28 bits, Channel = last 4 bits Data pointer must be 16 byte aligned to allow for the 4 bit channel number

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function RPi2MailboxPropertyCallEx(Mailbox,Channel:LongWord; Data:Pointer; var Response:LongWord; Timeout:LongWord):LongWord;

Description: Perform a property tag transaction (Send/Receive) to specified mailbox on specified channel

Note	Data = first 28 bits, Channel = last 4 bits Data pointer must be 16 byte aligned to allow for the 4 bit channel number

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function RPi2RequestExIRQ(CPUID,Number:LongWord; Handler:TInterruptHandler; HandlerEx:TInterruptExHandler; Parameter:Pointer):LongWord;

Description: Request registration of the supplied handler to the specified IRQ number

CPUID	CPU to route IRQ to
Number	IRQ number to register
Handler	Interrupt handler function to register
HandlerEx	Extended Interrupt handler function to register
Note	Only one of Handler or HandlerEx can be specified

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function RPi2ReleaseExIRQ(CPUID,Number:LongWord; Handler:TInterruptHandler; HandlerEx:TInterruptExHandler; Parameter:Pointer):LongWord;

Description: Request deregistration of the supplied handler from the specified IRQ number

CPUID	CPU to route IRQ to
Number	IRQ number to deregister
Handler	Interrupt handler function to deregister
HandlerEx	Extended Interrupt handler function to deregister
Note	Only one of Handler or HandlerEx can be specified

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function RPi2RequestExFIQ(CPUID,Number:LongWord; Handler:TInterruptHandler; HandlerEx:TInterruptExHandler; Parameter:Pointer):LongWord;

Description: Request registration of the supplied handler to the specified FIQ number

CPUID	CPU to route FIQ to
Number	FIQ number to register
Handler	Interrupt handler function to register
HandlerEx	Extended Interrupt handler function to register
Note	Only one of Handler or HandlerEx can be specified

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function RPi2ReleaseExFIQ(CPUID,Number:LongWord; Handler:TInterruptHandler; HandlerEx:TInterruptExHandler; Parameter:Pointer):LongWord;

Description: Request deregistration of the supplied handler from the specified FIQ number

CPUID	CPU to route FIQ to
Number	FIQ number to deregister
Handler	Interrupt handler function to deregister
HandlerEx	Extended Interrupt handler function to deregister
Note	Only one of Handler or HandlerEx can be specified

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function RPi2RegisterSystemCallEx(CPUID,Number:LongWord; Handler:TSystemCallHandler; HandlerEx:TSystemCallExHandler):LongWord;

Description: Request registration of the supplied extended handler to the specified System Call number

CPUID	The CPU ID to register the System Call against (or CPU_ID_ALL)
Number	The System Call number to be registered
Handler	The handler function to be registered
HandlerEx	The extended handler function to be registered
Note	Only one of Handler or HandlerEx can be specified

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function RPi2DeregisterSystemCallEx(CPUID,Number:LongWord; Handler:TSystemCallHandler; HandlerEx:TSystemCallExHandler):LongWord;

Description: Request deregistration of the supplied extended handler from the specified System Call number

CPUID	The CPU ID to deregister the System Call from (or CPU_ID_ALL)
Number	The System Call number to be deregistered
Handler	The handler function to be deregistered
HandlerEx	The extended handler function to be deregistered
Note	Only one of Handler or HandlerEx can be specified

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function RPi2GetInterruptEntry(Number:LongWord):TInterruptEntry;

Description: Get the interrupt entry for the specified interrupt number

Note	None documented

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function RPi2GetLocalInterruptEntry(CPUID,Number:LongWord):TInterruptEntry;

Description: Get the local interrupt entry for the specified interrupt number

Note	None documented

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function RPi2GetSystemCallEntry(Number:LongWord):TSystemCallEntry;

Description: Get the system call entry for the specified system call number

Note	None documented

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function RPi2SystemRestart(Delay:LongWord):LongWord;

Description: To be documented

Note	None documented

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function RPi2SystemShutdown(Delay:LongWord):LongWord;

Description: To be documented

Note	None documented

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function RPi2SystemGetCommandLine:String;

Description: Get the Command Line from the Mailbox property tags channel

Note	None documented

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function RPi2CPUGetMemory(var Address:PtrUInt; var Length:LongWord):LongWord;

Description: Get the CPU Memory from the Mailbox property tags channel

Note	None documented

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function RPi2GPUGetState:LongWord;

Description: To be documented

Note	None documented

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function RPi2GPUGetMemory(var Address:PtrUInt; var Length:LongWord):LongWord;

Description: Get the GPU Memory from the Mailbox property tags channel

Note	None documented

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function RPi2BoardGetModel:LongWord;

Description: Get the Board Model from the Mailbox property tags channel

Note	None documented

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function RPi2BoardGetSerial:Int64;

Description: Get the Board Serial from the Mailbox property tags channel

Note	None documented

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function RPi2BoardGetRevision:LongWord;

Description: Get the Board Revision from the Mailbox property tags channel

Note	None documented

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function RPi2BoardGetMACAddress:String;

Description: Get the Board MAC Address from the Mailbox property tags channel

Note	None documented

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function RPi2FirmwareGetRevision:LongWord;

Description: Get the Firmware Revision from the Mailbox property tags channel

Note	None documented

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function RPi2PowerGetWait(PowerId:LongWord):LongWord;

Description: Get the Power Wait from the Mailbox property tags channel

Note	None documented

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function RPi2PowerGetState(PowerId:LongWord):LongWord;

Description: Get the Power State from the Mailbox property tags channel

Note	None documented

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function RPi2Power?etState(PowerId,State:LongWord; Wait:Boolean):LongWord;

Description: ?et the Power State in the Mailbox property tags channel

Note	Power Lock not required due to Mailbox Property Call serialization

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function RPi2ClockGetCount:LongWord;

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

Note	On the Raspberry Pi this comes from the System Timer free running counter which runs at 1MHz and therefore overflows every 4295 seconds

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function RPi2ClockGetTotal:Int64;

Description: Gets the total system clock count

Note	On the Raspberry Pi this comes from the System Timer free running counter which runs at 1MHz, the clock interrupt also uses this timer to increment the clock every second and therefore keep time.

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function RPi2ClockGetRate(ClockId:LongWord):LongWord;

Description: Get the Clock Rate from the Mailbox property tags channel

Note	None documented

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function RPi2Clock?etRate(ClockId,Rate:LongWord; Turbo:Boolean):LongWord;

Description: ?et the Clock Rate in the Mailbox property tags channel

Note	None documented

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function RPi2ClockGetState(ClockId:LongWord):LongWord;

Description: Get the Clock State from the Mailbox property tags channel

Note	None documented

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function RPi2Clock?etState(ClockId,State:LongWord):LongWord;

Description: ?et the Clock State in the Mailbox property tags channel

Note	None documented

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function RPi2ClockGetMinRate(ClockId:LongWord):LongWord;

Description: Get the Clock Min Rate from the Mailbox property tags channel

Note	None documented

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function RPi2ClockGetMaxRate(ClockId:LongWord):LongWord;

Description: Get the Clock Max Rate from the Mailbox property tags channel

Note	None documented

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function RPi2TurboGetState(TurboId:LongWord):LongWord;

Description: Get the Turbo State from the Mailbox property tags channel

Note	None documented

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function RPi2Turbo?etState(TurboId,State:LongWord):LongWord;

Description: ?et the Turbo State in the Mailbox property tags channel

Note	None documented

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function RPi2VoltageGetValue(VoltageId:LongWord):LongWord;

Description: Get the Voltage Value from the Mailbox property tags channel

Note	None documented

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function RPi2Voltage?etValue(VoltageId,Value:LongWord):LongWord;

Description: ?et the Voltage Value in the Mailbox property tags channel

Note	None documented

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function RPi2VoltageGetMinValue(VoltageId:LongWord):LongWord;

Description: Get the Voltage Min Value from the Mailbox property tags channel

Note	None documented

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function RPi2VoltageGetMaxValue(VoltageId:LongWord):LongWord;

Description: Get the Voltage Max Value from the Mailbox property tags channel

Note	None documented

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function RPi2TemperatureGetCurrent(TemperatureId:LongWord):LongWord;

Description: Get the Temperature Current from the Mailbox property tags channel

Note	None documented

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function RPi2TemperatureGetMaximum(TemperatureId:LongWord):LongWord;

Description: Get the Temperature Maximum Model from the Mailbox property tags channel

Note	None documented

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function RPi2GPUMemoryAllocate(Length,Alignment,Flags:LongWord):THandle;

Description: Allocate GPU Memory from the Mailbox property tags channel

Note	None documented

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function RPi2GPUMemoryRelease(Handle:THandle):LongWord;

Description: Release GPU Memory from the Mailbox property tags channel

Note	None documented

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function RPi2GPUMemoryLock(Handle:THandle):LongWord;

Description: Lock GPU Memory from the Mailbox property tags channel

Note	None documented

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function RPi2GPUMemoryUnlock(Handle:THandle):LongWord;

Description: Unlock GPU Memory from the Mailbox property tags channel

Note	None documented

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function RPi2GPUExecuteCode(Address:Pointer; R0,R1,R2,R3,R4,R5:LongWord):LongWord;

Description: Execute GPU Code from the Mailbox property tags channel

Note	None documented

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function RPi2DispmanxHandleGet(Resource:THandle):THandle;

Description: Get Dispmanx Memory Handle from the Mailbox property tags channel

Note	None documented

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function RPi2EDIDBlockGet(Block:LongWord; Buffer:Pointer; Length:LongWord):LongWord;

Description: Get EDID Block from the Mailbox property tags channel

Note	None documented

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function RPi2FramebufferAllocate(Alignment:LongWord; var Address,Length:LongWord):LongWord;

Description: Allocate Framebuffer from the Mailbox property tags channel

Note	None documented

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function RPi2FramebufferRelease:LongWord;

Description: Release Framebuffer from the Mailbox property tags channel

Note	None documented

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function RPi2Framebuffer?etState(State:LongWord):LongWord;

Description: ?et Framebuffer State (Blank Screen) from the Mailbox property tags channel

Note	None documented

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function RPi2FramebufferGetDimensions(var Width,Height,Top,Bottom,Left,Right:LongWord):LongWord;

Description: Get Framebuffer Dimensions from the Mailbox property tags channel

Note	None documented

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function RPi2FramebufferGetPhysical(var Width,Height:LongWord):LongWord;

Description: Get Framebuffer Physical size from the Mailbox property tags channel

Note	None documented

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function RPi2Framebuffer?etPhysical(var Width,Height:LongWord):LongWord;

Description: ?et Framebuffer Physical size from the Mailbox property tags channel

Note	None documented

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function RPi2FramebufferTestPhysical(var Width,Height:LongWord):LongWord;

Description: Test Framebuffer Physical size from the Mailbox property tags channel

Note	None documented

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function RPi2FramebufferGetVirtual(var Width,Height:LongWord):LongWord;

Description: Get Framebuffer Virtual size from the Mailbox property tags channel

Note	None documented

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function RPi2Framebuffer?etVirtual(var Width,Height:LongWord):LongWord;

Description: ?et Framebuffer Virtual size from the Mailbox property tags channel

Note	None documented

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function RPi2FramebufferTestVirtual(var Width,Height:LongWord):LongWord;

Description: Test Framebuffer Virtual size from the Mailbox property tags channel

Note	None documented

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function RPi2FramebufferGetDepth(var Depth:LongWord):LongWord;

Description: Get Framebuffer Depth (Bits per pixel) from the Mailbox property tags channel

Note	None documented

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function RPi2Framebuffer?etDepth(var Depth:LongWord):LongWord;

Description: ?et Framebuffer Depth (Bits per pixel) from the Mailbox property tags channel

Note	None documented

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function RPi2FramebufferTestDepth(var Depth:LongWord):LongWord;

Description: Test Framebuffer Depth (Bits per pixel) from the Mailbox property tags channel

Note	None documented

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function RPi2FramebufferGetPixelOrder(var Order:LongWord):LongWord;

Description: Get Framebuffer Pixel Order (RGB) from the Mailbox property tags channel

Note	None documented

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function RPi2Framebuffer?etPixelOrder(var Order:LongWord):LongWord;

Description: ?et Framebuffer Pixel Order (RGB) from the Mailbox property tags channel

Note	None documented

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function RPi2FramebufferTestPixelOrder(var Order:LongWord):LongWord;

Description: Test Framebuffer Pixel Order (RGB) from the Mailbox property tags channel

Note	None documented

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function RPi2FramebufferGetAlphaMode(var Mode:LongWord):LongWord;

Description: Get Framebuffer Alpha Mode from the Mailbox property tags channel

Note	None documented

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function RPi2Framebuffer?etAlphaMode(var Mode:LongWord):LongWord;

Description: ?et Framebuffer Alpha Mode from the Mailbox property tags channel

Note	None documented

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function RPi2FramebufferTestAlphaMode(var Mode:LongWord):LongWord;

Description: Test Framebuffer Alpha Mode from the Mailbox property tags channel

Note	None documented

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function RPi2FramebufferGetPitch:LongWord;

Description: Get Framebuffer Pitch (Bytes per line) from the Mailbox property tags channel

Note	None documented

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function RPi2FramebufferGetOff?et(var X,Y:LongWord):LongWord;

Description: Get Framebuffer Virtual Off?et from the Mailbox property tags channel

Note	None documented

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function RPi2Framebuffer?etOff?et(var X,Y:LongWord):LongWord;

Description: ?et Framebuffer Virtual Off?et from the Mailbox property tags channel

Note	None documented

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function RPi2FramebufferTestOff?et(var X,Y:LongWord):LongWord;

Description: Test Framebuffer Virtual Off?et from the Mailbox property tags channel

Note	None documented

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function RPi2FramebufferGetOverscan(var Top,Bottom,Left,Right:LongWord):LongWord;

Description: Get Framebuffer Overscan from the Mailbox property tags channel

Note	None documented

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function RPi2Framebuffer?etOverscan(var Top,Bottom,Left,Right:LongWord):LongWord;

Description: ?et Framebuffer Overscan from the Mailbox property tags channel

Note	None documented

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function RPi2FramebufferTestOverscan(var Top,Bottom,Left,Right:LongWord):LongWord;

Description: Test Framebuffer Overscan from the Mailbox property tags channel

Note	None documented

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function RPi2FramebufferGetPalette(Buffer:Pointer; Length:LongWord):LongWord;

Description: Get Framebuffer Palette from the Mailbox property tags channel

Note	None documented

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function RPi2Framebuffer?etPalette(Start,Count:LongWord; Buffer:Pointer; Length:LongWord):LongWord;

Description: ?et Framebuffer Palette from the Mailbox property tags channel

Note	None documented

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function RPi2FramebufferTestPalette(Start,Count:LongWord; Buffer:Pointer; Length:LongWord):LongWord;

Description: Test Framebuffer Palette from the Mailbox property tags channel

Note	None documented

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function RPi2Framebuffer?etBacklight(Brightness:LongWord):LongWord;

Description: ?et Framebuffer Backlight Brightness from the Mailbox property tags channel

Note	None documented

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function RPi2TouchGetBuffer(var Address:LongWord):LongWord;

Description: Get the Touchscreen buffer from the Mailbox property tags channel

Note	None documented

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function RPi2VirtualGPIOGetBuffer(var Address:LongWord):LongWord;

Description: Get the Virtual GPIO buffer from the Mailbox property tags channel

Note	None documented

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function RPi2Cursor?etInfo(Width,Height,HotspotX,HotspotY:LongWord; Pixels:Pointer; Length:LongWord):LongWord;

Description: ?et Cursor Info (Pixels) from the Mailbox property tags channel

Note	None documented

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function RPi2Cursor?etState(Enabled:Boolean; X,Y:LongWord; Relative:Boolean):LongWord;

Description: ?et Cursor State (Enable, X, Y) from the Mailbox property tags channel

Relative	X, Y is relative to Display (Virtual) not Framebuffer (Physical)

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function RPi2DMAGetChannels:LongWord;

Description: Get the available DMA Channels from the Mailbox property tags channel

Note	None documented

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function RPi2VirtualGPIOInputGet(Pin:LongWord):LongWord;

Description: To be documented

Note	None documented

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function RPi2VirtualGPIOOutput?et(Pin,Level:LongWord):LongWord;

Description: To be documented

Note	None documented

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function RPi2VirtualGPIOFunctionSelect(Pin,Mode:LongWord):LongWord;

Description: To be documented

Note	None documented

RPi2 thread functions

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procedure RPi2SchedulerInit;

Description: Initialize the scheduler interrupt on the boot CPU

Note	None documented

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procedure RPi2SchedulerStart(CPUID:LongWord);

Description: Initialize the scheduler interrupt on the specified secondary CPU

Note	None documented

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procedure RPi2SecondaryBoot(CPUID:LongWord);

Description: To be documented

Note	None documented

RPi2 IRQ functions

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function RPi2DispatchIRQ(CPUID:LongWord; Thread:TThreadHandle):TThreadHandle;

Description: Process any pending IRQ requests

Note	Called by ARMv7IRQHandler in PlatformARMv7 A DataMemoryBarrier is executed before and after calling this function

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function RPi2HandleIRQ(Number,CPUID:LongWord; Thread:TThreadHandle):TThreadHandle;

Description: Call the handler function for an IRQ that was received, or halt if it doesn't exist

Note	None documented

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