Unit PlatformRPi

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Description

The RPi A+/B+ have the Power LED connected to GPIO Pin 35 (Activity LED is now on GPIO Pin 47 instead of Pin 16 in model A/B).

Constants

To be documented

Type definitions

To be documented

Public variables

To be documented

Function declarations


Initialization functions 

procedure RPiInit;
Description: To be documented
Note None documented


RPi platform functions 

procedure RPiBoardInit;
Description: To be documented
Note None documented 


procedure RPiMemoryInit;
Description: To be documented
Note None documented 


procedure RPiClockInit;
Description: To be documented
Note None documented 


procedure RPiPowerInit;
Description: To be documented
Note None documented 


procedure RPiMailboxInit;
Description: To be documented
Note None documented 


procedure RPiInterruptInit;
Description: To be documented
Note None documented 


procedure RPiPeripheralInit;
Description: To be documented
Note None documented 


procedure RPiFramebufferInit;
Description: To be documented
Note None documented 


procedure RPiPageTableInit;
Description: Initialize the Hardware Page Tables before enabling the MMU
Note See page 6-36 of the ARM1176JZF-S Technical Reference Manual 


procedure RPiPowerLEDEnable;
Description: To be documented
Note None documented 


procedure RPiPowerLEDOn;
Description: To be documented
Note None documented 


procedure RPiPowerLEDOff;
Description: To be documented
Note None documented 


procedure RPiActivityLEDEnable;
Description: To be documented
Note None documented 


procedure RPiActivityLEDOn;
Description: To be documented
Note None documented 


procedure RPiActivityLEDOff;
Description: To be documented
Note None documented 


function RPiMailboxReceive(Mailbox,Channel:LongWord):LongWord;
Description: Receive from specified mailbox on specified channel
Note Data = first 28 bits, Channel = last 4 bits 


procedure RPiMailboxSend(Mailbox,Channel,Data:LongWord);
Description: Send to specified mailbox on specified channel
Note Data = first 28 bits, Channel = last 4 bits 


function RPiMailboxCall(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 


function RPiMailboxCallEx(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 


function RPiMailboxPropertyCall(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 


function RPiMailboxPropertyCallEx(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 


function RPiRequestExIRQ(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 (Ignored on RPi)
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 


function RPiReleaseExIRQ(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 (Ignored on RPi)
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 


function RPiRequestExFIQ(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 (Ignored on RPi)
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 


function RPiReleaseExFIQ(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 (Ignored on RPi)
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 


function RPiRegisterSystemCallEx(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 (Ignored on RPi)
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 


function RPiDeregisterSystemCallEx(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 (Ignored on RPi)
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 


function RPiGetInterruptEntry(Number:LongWord):TInterruptEntry;
Description: Get the interrupt entry for the specified interrupt number
Note None documented 


function RPiGetSystemCallEntry(Number:LongWord):TSystemCallEntry;
Description: To be documented
Note Get the system call entry for the specified system call number 


function RPiSystemRestart(Delay:LongWord):LongWord;
Description: To be documented
Note None documented 


function RPiSystemShutdown(Delay:LongWord):LongWord;
Description: To be documented
Note None documented 


function RPiSystemGetCommandLine:String;
Description: Get the Command Line from the Mailbox property tags channel
Note None documented 


function RPiCPUGetMemory(var Address:PtrUInt; var Length:LongWord):LongWord;
Description: Get the CPU Memory from the Mailbox property tags channel
Note None documented 


function RPiGPUGetState:LongWord;
Description: To be documented
Note None documented 


function RPiGPUGetMemory(var Address:PtrUInt; var Length:LongWord):LongWord;
Description: Get the GPU Memory from the Mailbox property tags channel
Note None documented 


function RPiBoardGetModel:LongWord;
Description: Get the Board Model from the Mailbox property tags channel
Note None documented 


function RPiBoardGetSerial:Int64;
Description: Get the Board Serial from the Mailbox property tags channel
Note None documented 


function RPiBoardGetRevision:LongWord;
Description: Get the Board Revision from the Mailbox property tags channel
Note None documented 


function RPiBoardGetMACAddress:String;
Description: Get the Board MAC Address from the Mailbox property tags channel
Note None documented 


function RPiFirmwareGetRevision:LongWord;
Description: Get the Firmware Revision from the Mailbox property tags channel
Note None documented 


function RPiPowerGetWait(PowerId:LongWord):LongWord;
Description: Get the Power Wait from the Mailbox property tags channel
Note None documented 


function RPiPowerGetState(PowerId:LongWord):LongWord;
Description: Get the Power State from the Mailbox property tags channel
Note None documented 


function RPiPowerSetState(PowerId,State:LongWord; Wait:Boolean):LongWord;
Description: Set the Power State in the Mailbox property tags channel
Note Power Lock not required due to Mailbox Property Call serialization 


function RPiClockGetCount: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 


function RPiClockGetTotal: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. 


function RPiClockGetRate(ClockId:LongWord):LongWord;
Description: Get the Clock Rate from the Mailbox property tags channel
Note None documented 


function RPiClockSetRate(ClockId,Rate:LongWord; Turbo:Boolean):LongWord;
Description: Set the Clock Rate in the Mailbox property tags channel
Note None documented 


function RPiClockGetState(ClockId:LongWord):LongWord;
Description: Get the Clock State from the Mailbox property tags channel
Note None documented 


function RPiClockSetState(ClockId,State:LongWord):LongWord;
Description: Set the Clock State in the Mailbox property tags channel
Note None documented 


function RPiClockGetMinRate(ClockId:LongWord):LongWord;
Description: Get the Clock Min Rate from the Mailbox property tags channel
Note None documented 


function RPiClockGetMaxRate(ClockId:LongWord):LongWord;
Description: Get the Clock Max Rate from the Mailbox property tags channel
Note None documented 


function RPiTurboGetState(TurboId:LongWord):LongWord;
Description: Get the Turbo State from the Mailbox property tags channel
Note None documented 


function RPiTurboSetState(TurboId,State:LongWord):LongWord;
Description: Set the Turbo State in the Mailbox property tags channel
Note None documented 


function RPiVoltageGetValue(VoltageId:LongWord):LongWord;
Description: Get the Voltage Value from the Mailbox property tags channel
Note None documented 


function RPiVoltageSetValue(VoltageId,Value:LongWord):LongWord;
Description: Set the Voltage Value in the Mailbox property tags channel
Note None documented 


function RPiVoltageGetMinValue(VoltageId:LongWord):LongWord;
Description: Get the Voltage Min Value from the Mailbox property tags channel
Note None documented 


function RPiVoltageGetMaxValue(VoltageId:LongWord):LongWord;
Description: Get the Voltage Max Value from the Mailbox property tags channel
Note None documented 


function RPiTemperatureGetCurrent(TemperatureId:LongWord):LongWord;
Description: Get the Temperature Current from the Mailbox property tags channel
Note None documented 


function RPiTemperatureGetMaximum(TemperatureId:LongWord):LongWord;
Description: Get the Temperature Maximum Model from the Mailbox property tags channel
Note None documented 


function RPiGPUMemoryAllocate(Length,Alignment,Flags:LongWord):THandle;
Description: Allocate GPU Memory from the Mailbox property tags channel
Note None documented 


function RPiGPUMemoryRelease(Handle:THandle):LongWord;
Description: Release GPU Memory from the Mailbox property tags channel
Note None documented 


function RPiGPUMemoryLock(Handle:THandle):LongWord;
Description: Lock GPU Memory from the Mailbox property tags channel
Note None documented 


function RPiGPUMemoryUnlock(Handle:THandle):LongWord;
Description: Unlock GPU Memory from the Mailbox property tags channel
Note None documented 


function RPiGPUExecuteCode(Address:Pointer; R0,R1,R2,R3,R4,R5:LongWord):LongWord;
Description: Execute GPU Code from the Mailbox property tags channel
Note None documented 


function RPiDispmanxHandleGet(Resource:THandle):THandle;
Description: Get Dispmanx Memory Handle from the Mailbox property tags channel
Note None documented 


function RPiEDIDBlockGet(Block:LongWord; Buffer:Pointer; Length:LongWord):LongWord;
Description: Get EDID Block from the Mailbox property tags channel
Note None documented 


function RPiFramebufferAllocate(Alignment:LongWord; var Address,Length:LongWord):LongWord;
Description: Allocate Framebuffer from the Mailbox property tags channel
Note None documented 


function RPiFramebufferRelease:LongWord;
Description: Release Framebuffer from the Mailbox property tags channel
Note None documented 


function RPiFramebufferSetState(State:LongWord):LongWord;
Description: Set Framebuffer State (Blank Screen) from the Mailbox property tags channel
Note None documented 


function RPiFramebufferGetDimensions(var Width,Height,Top,Bottom,Left,Right:LongWord):LongWord;
Description: Get Framebuffer Dimensions from the Mailbox property tags channel
Note None documented 


function RPiFramebufferGetPhysical(var Width,Height:LongWord):LongWord;
Description: Get Framebuffer Physical size from the Mailbox property tags channel
Note None documented 


function RPiFramebufferSetPhysical(var Width,Height:LongWord):LongWord;
Description: Set Framebuffer Physical size from the Mailbox property tags channel
Note None documented 


function RPiFramebufferTestPhysical(var Width,Height:LongWord):LongWord;
Description: Test Framebuffer Physical size from the Mailbox property tags channel
Note None documented 


function RPiFramebufferGetVirtual(var Width,Height:LongWord):LongWord;
Description: Get Framebuffer Virtual size from the Mailbox property tags channel
Note None documented 


function RPiFramebufferSetVirtual(var Width,Height:LongWord):LongWord;
Description: Set Framebuffer Virtual size from the Mailbox property tags channel
Note None documented 


function RPiFramebufferTestVirtual(var Width,Height:LongWord):LongWord;
Description: Test Framebuffer Virtual size from the Mailbox property tags channel
Note None documented 


function RPiFramebufferGetDepth(var Depth:LongWord):LongWord;
Description: Get Framebuffer Depth (Bits per pixel) from the Mailbox property tags channel
Note None documented 


function RPiFramebufferSetDepth(var Depth:LongWord):LongWord;
Description: Set Framebuffer Depth (Bits per pixel) from the Mailbox property tags channel
Note None documented 


function RPiFramebufferTestDepth(var Depth:LongWord):LongWord;
Description: Test Framebuffer Depth (Bits per pixel) from the Mailbox property tags channel
Note None documented 


function RPiFramebufferGetPixelOrder(var Order:LongWord):LongWord;
Description: Get Framebuffer Pixel Order (RGB) from the Mailbox property tags channel
Note None documented 


function RPiFramebufferSetPixelOrder(var Order:LongWord):LongWord;
Description: Set Framebuffer Pixel Order (RGB) from the Mailbox property tags channel
Note None documented 


function RPiFramebufferTestPixelOrder(var Order:LongWord):LongWord;
Description: Test Framebuffer Pixel Order (RGB) from the Mailbox property tags channel
Note None documented 


function RPiFramebufferGetAlphaMode(var Mode:LongWord):LongWord;
Description: Get Framebuffer Alpha Mode from the Mailbox property tags channel
Note None documented 


function RPiFramebufferSetAlphaMode(var Mode:LongWord):LongWord;
Description: Set Framebuffer Alpha Mode from the Mailbox property tags channel
Note None documented 


function RPiFramebufferTestAlphaMode(var Mode:LongWord):LongWord;
Description: Test Framebuffer Alpha Mode from the Mailbox property tags channel
Note None documented 


function RPiFramebufferGetPitch:LongWord;
Description: Get Framebuffer Pitch (Bytes per line) from the Mailbox property tags channel
Note None documented 


function RPiFramebufferGetOffset(var X,Y:LongWord):LongWord;
Description: Get Framebuffer Virtual Offset from the Mailbox property tags channel
Note None documented 


function RPiFramebufferSetOffset(var X,Y:LongWord):LongWord;
Description: Set Framebuffer Virtual Offset from the Mailbox property tags channel
Note None documented 


function RPiFramebufferTestOffset(var X,Y:LongWord):LongWord;
Description: Test Framebuffer Virtual Offset from the Mailbox property tags channel
Note None documented 


function RPiFramebufferGetOverscan(var Top,Bottom,Left,Right:LongWord):LongWord;
Description: Get Framebuffer Overscan from the Mailbox property tags channel
Note None documented 


function RPiFramebufferSetOverscan(var Top,Bottom,Left,Right:LongWord):LongWord;
Description: Set Framebuffer Overscan from the Mailbox property tags channel
Note None documented 


function RPiFramebufferTestOverscan(var Top,Bottom,Left,Right:LongWord):LongWord;
Description: Test Framebuffer Overscan from the Mailbox property tags channel
Note None documented 


function RPiFramebufferGetPalette(Buffer:Pointer; Length:LongWord):LongWord;
Description: Get Framebuffer Palette from the Mailbox property tags channel
Note None documented 


function RPiFramebufferSetPalette(Start,Count:LongWord; Buffer:Pointer; Length:LongWord):LongWord;
Description: Set Framebuffer Palette from the Mailbox property tags channel
Note None documented 


function RPiFramebufferTestPalette(Start,Count:LongWord; Buffer:Pointer; Length:LongWord):LongWord;
Description: Test Framebuffer Palette from the Mailbox property tags channel
Note None documented 


function RPiFramebufferSetBacklight(Brightness:LongWord):LongWord;
Description: Set Framebuffer Backlight Brightness from the Mailbox property tags channel
Note None documented 


function RPiTouchGetBuffer(var Address:LongWord):LongWord;
Description: Get the Touchscreen buffer from the Mailbox property tags channel
Note None documented 


function RPiCursorSetInfo(Width,Height,HotspotX,HotspotY:LongWord; Pixels:Pointer; Length:LongWord):LongWord;
Description: Set Curson Info (Pixels) from the Mailbox property tags channel
Note None documented 


function RPiCursorSetState(Enabled:Boolean; X,Y:LongWord; Relative:Boolean):LongWord;
Description: Set Cursor State (Enable, X, Y) from the Mailbox property tags channel
Relative X, Y is relative to Display (Virtual) not Framebuffer (Physical) 


function RPiDMAGetChannels:LongWord;
Description: Get the available DMA Channels from the Mailbox property tags channel
Note None documented


RPi tthread functions 

procedure RPiSchedulerInit;
Description: To be documented
Note None documented


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