Difference between revisions of "Unit PlatformRPi2"
From Ultibo.org
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=== Public variables === | === Public variables === | ||
Revision as of 06:17, 1 December 2016
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Description
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
To be documented
Type definitions
None defined
Public variables
To be documented
Function declarations
Initialization functions
procedure RPi2Init;
Description: To be documented
| Note | None documented |
|---|
procedure RPi2SecondarySwitch; assembler; nostackframe;
Description: Secondary CPU switch from HYP mode handler
| Note | None documented |
|---|
procedure RPi2SecondarySecure; assembler; nostackframe;
Description: Secondary CPU switch to secure mode handler
| Note | None documented |
|---|
procedure RPi2SecondaryHandler; assembler; nostackframe;
Description: Secondary CPU startup handler routine
| Note | None documented |
|---|
RPi2 platform functions
procedure RPi2SMPInit;
Description: To be documented
| Note | None documented |
|---|
procedure RPi2BoardInit;
Description: To be documented
| Note | None documented |
|---|
procedure RPi2MemoryInit;
Description: To be documented
| Note | None documented |
|---|
procedure RPi2ClockInit;
Description: To be documented
| Note | None documented |
|---|
procedure RPi2PowerInit;
Description: To be documented
| Note | None documented |
|---|
procedure RPi2MailboxInit;
Description: To be documented
| Note | None documented |
|---|
procedure RPi2InterruptInit;
Description: To be documented
| Note | None documented |
|---|
procedure RPi2PeripheralInit;
Description: To be documented
| Note | None documented |
|---|
procedure RPi2FramebufferInit;
Description: To be documented
| Note | None documented |
|---|
procedure RPi2PageTableInit;
Description: Initialize the Hardware Page Tables before enabling the MMU
| Note | None documented |
|---|
procedure RPi2PowerLEDEnable;
Description: To be documented
| Note | None documented |
|---|
procedure RPi2PowerLEDOn;
Description: To be documented
| Note | None documented |
|---|
procedure RPi2PowerLEDOff;
Description: To be documented
| Note | None documented |
|---|
procedure RPi2ActivityLEDEnable;
Description: To be documented
| Note | None documented |
|---|
procedure RPi2ActivityLEDOn;
Description: To be documented
| Note | None documented |
|---|
procedure RPi2ActivityLEDOff;
Description: To be documented
| Note | None documented |
|---|
function RPi2MailboxReceive(Mailbox,Channel:LongWord):LongWord;
Description: Receive from specified mailbox on specified channel
| Note | Data = first 28 bits, Channel = last 4 bits |
|---|
procedure RPi2MailboxSend(Mailbox,Channel,Data:LongWord);
Description: Send to specified mailbox on specified channel
| Note | Data = first 28 bits, Channel = last 4 bits |
|---|
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 |
|---|
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 |
|---|
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 |
|---|
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 |
|---|
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 |
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 |
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 |
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 |
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 |
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 |
function RPi2GetInterruptEntry(Number:LongWord):TInterruptEntry;
Description: Get the interrupt entry for the specified interrupt number
| Note | None documented |
|---|
function RPi2GetLocalInterruptEntry(CPUID,Number:LongWord):TInterruptEntry;
Description: Get the local interrupt entry for the specified interrupt number
| Note | None documented |
|---|
function RPi2GetSystemCallEntry(Number:LongWord):TSystemCallEntry;
Description: Get the system call entry for the specified system call number
| Note | None documented |
|---|
function RPi2SystemRestart(Delay:LongWord):LongWord;
Description: To be documented
| Note | None documented |
|---|
function RPi2SystemShutdown(Delay:LongWord):LongWord;
Description: To be documented
| Note | None documented |
|---|
function RPi2SystemGetCommandLine:String;
Description: Get the Command Line from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2CPUGetMemory(var Address:PtrUInt; var Length:LongWord):LongWord;
Description: Get the CPU Memory from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2GPUGetState:LongWord;
Description: To be documented
| Note | None documented |
|---|
function RPi2GPUGetMemory(var Address:PtrUInt; var Length:LongWord):LongWord;
Description: Get the GPU Memory from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2BoardGetModel:LongWord;
Description: Get the Board Model from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2BoardGetSerial:Int64;
Description: Get the Board Serial from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2BoardGetRevision:LongWord;
Description: Get the Board Revision from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2BoardGetMACAddress:String;
Description: Get the Board MAC Address from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FirmwareGetRevision:LongWord;
Description: Get the Firmware Revision from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2PowerGetWait(PowerId:LongWord):LongWord;
Description: Get the Power Wait from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2PowerGetState(PowerId:LongWord):LongWord;
Description: Get the Power State from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2PowerSetState(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 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 |
|---|
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. |
|---|
function RPi2ClockGetRate(ClockId:LongWord):LongWord;
Description: Get the Clock Rate from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2ClockSetRate(ClockId,Rate:LongWord; Turbo:Boolean):LongWord;
Description: Set the Clock Rate in the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2ClockGetState(ClockId:LongWord):LongWord;
Description: Get the Clock State from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2ClockSetState(ClockId,State:LongWord):LongWord;
Description: Set the Clock State in the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2ClockGetMinRate(ClockId:LongWord):LongWord;
Description: Get the Clock Min Rate from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2ClockGetMaxRate(ClockId:LongWord):LongWord;
Description: Get the Clock Max Rate from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2TurboGetState(TurboId:LongWord):LongWord;
Description: Get the Turbo State from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2TurboSetState(TurboId,State:LongWord):LongWord;
Description: Set the Turbo State in the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2VoltageGetValue(VoltageId:LongWord):LongWord;
Description: Get the Voltage Value from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2VoltageSetValue(VoltageId,Value:LongWord):LongWord;
Description: Set the Voltage Value in the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2VoltageGetMinValue(VoltageId:LongWord):LongWord;
Description: Get the Voltage Min Value from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2VoltageGetMaxValue(VoltageId:LongWord):LongWord;
Description: Get the Voltage Max Value from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2TemperatureGetCurrent(TemperatureId:LongWord):LongWord;
Description: Get the Temperature Current from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2TemperatureGetMaximum(TemperatureId:LongWord):LongWord;
Description: Get the Temperature Maximum Model from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2GPUMemoryAllocate(Length,Alignment,Flags:LongWord):THandle;
Description: Allocate GPU Memory from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2GPUMemoryRelease(Handle:THandle):LongWord;
Description: Release GPU Memory from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2GPUMemoryLock(Handle:THandle):LongWord;
Description: Lock GPU Memory from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2GPUMemoryUnlock(Handle:THandle):LongWord;
Description: Unlock GPU Memory from the Mailbox property tags channel
| Note | None documented |
|---|
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 |
|---|
function RPi2DispmanxHandleGet(Resource:THandle):THandle;
Description: Get Dispmanx Memory Handle from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2EDIDBlockGet(Block:LongWord; Buffer:Pointer; Length:LongWord):LongWord;
Description: Get EDID Block from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferAllocate(Alignment:LongWord; var Address,Length:LongWord):LongWord;
Description: Allocate Framebuffer from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferRelease:LongWord;
Description: Release Framebuffer from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferSetState(State:LongWord):LongWord;
Description: Set Framebuffer State (Blank Screen) from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferGetDimensions(var Width,Height,Top,Bottom,Left,Right:LongWord):LongWord;
Description: Get Framebuffer Dimensions from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferGetPhysical(var Width,Height:LongWord):LongWord;
Description: Get Framebuffer Physical size from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferSetPhysical(var Width,Height:LongWord):LongWord;
Description: Set Framebuffer Physical size from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferTestPhysical(var Width,Height:LongWord):LongWord;
Description: Test Framebuffer Physical size from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferGetVirtual(var Width,Height:LongWord):LongWord;
Description: Get Framebuffer Virtual size from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferSetVirtual(var Width,Height:LongWord):LongWord;
Description: Set Framebuffer Virtual size from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferTestVirtual(var Width,Height:LongWord):LongWord;
Description: Test Framebuffer Virtual size from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferGetDepth(var Depth:LongWord):LongWord;
Description: Get Framebuffer Depth (Bits per pixel) from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferSetDepth(var Depth:LongWord):LongWord;
Description: Set Framebuffer Depth (Bits per pixel) from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferTestDepth(var Depth:LongWord):LongWord;
Description: Test Framebuffer Depth (Bits per pixel) from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferGetPixelOrder(var Order:LongWord):LongWord;
Description: Get Framebuffer Pixel Order (RGB) from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferSetPixelOrder(var Order:LongWord):LongWord;
Description: Set Framebuffer Pixel Order (RGB) from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferTestPixelOrder(var Order:LongWord):LongWord;
Description: Test Framebuffer Pixel Order (RGB) from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferGetAlphaMode(var Mode:LongWord):LongWord;
Description: Get Framebuffer Alpha Mode from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferSetAlphaMode(var Mode:LongWord):LongWord;
Description: Set Framebuffer Alpha Mode from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferTestAlphaMode(var Mode:LongWord):LongWord;
Description: Test Framebuffer Alpha Mode from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferGetPitch:LongWord;
Description: Get Framebuffer Pitch (Bytes per line) from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferGetOffset(var X,Y:LongWord):LongWord;
Description: Get Framebuffer Virtual Offset from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferSetOffset(var X,Y:LongWord):LongWord;
Description: Set Framebuffer Virtual Offset from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferTestOffset(var X,Y:LongWord):LongWord;
Description: Test Framebuffer Virtual Offset from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferGetOverscan(var Top,Bottom,Left,Right:LongWord):LongWord;
Description: Get Framebuffer Overscan from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferSetOverscan(var Top,Bottom,Left,Right:LongWord):LongWord;
Description: Set Framebuffer Overscan from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferTestOverscan(var Top,Bottom,Left,Right:LongWord):LongWord;
Description: Test Framebuffer Overscan from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferGetPalette(Buffer:Pointer; Length:LongWord):LongWord;
Description: Get Framebuffer Palette from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferSetPalette(Start,Count:LongWord; Buffer:Pointer; Length:LongWord):LongWord;
Description: Set Framebuffer Palette from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferTestPalette(Start,Count:LongWord; Buffer:Pointer; Length:LongWord):LongWord;
Description: Test Framebuffer Palette from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferTestVsync:LongWord;
Description: Test Framebuffer Vertical Sync from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferSetVsync:LongWord;
Description: Set Framebuffer Vertical Sync from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2FramebufferSetBacklight(Brightness:LongWord):LongWord;
Description: Set Framebuffer Backlight Brightness from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2TouchGetBuffer(var Address:LongWord):LongWord;
Description: Get the Touchscreen buffer from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2VirtualGPIOGetBuffer(var Address:LongWord):LongWord;
Description: Get the Virtual GPIO buffer from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2CursorSetDefault:LongWord;
Description: Set Cursor Default (Pixels) from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2CursorSetInfo(Width,Height,HotspotX,HotspotY:LongWord; Pixels:Pointer; Length:LongWord):LongWord;
Description: Set Cursor Info (Pixels) from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2CursorSetState(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 RPi2DMAGetChannels:LongWord;
Description: Get the available DMA Channels from the Mailbox property tags channel
| Note | None documented |
|---|
function RPi2VirtualGPIOInputGet(Pin:LongWord):LongWord;
Description: To be documented
| Note | None documented |
|---|
function RPi2VirtualGPIOOutputSet(Pin,Level:LongWord):LongWord;
Description: To be documented
| Note | None documented |
|---|
function RPi2VirtualGPIOFunctionSelect(Pin,Mode:LongWord):LongWord;
Description: To be documented
| Note | None documented |
|---|
RPi2 thread functions
procedure RPi2SchedulerInit;
Description: Initialize the scheduler interrupt on the boot CPU
| Note | None documented |
|---|
procedure RPi2SchedulerStart(CPUID:LongWord);
Description: Initialize the scheduler interrupt on the specified secondary CPU
| Note | None documented |
|---|
procedure RPi2SecondaryBoot(CPUID:LongWord);
Description: To be documented
| Note | None documented |
|---|
RPi2 IRQ functions
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 |
|---|
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 |
|---|
RPi2 FIQ functions
function RPi2DispatchFIQ(CPUID:LongWord; Thread:TThreadHandle):TThreadHandle;
Description: Process any pending FIQ requests
| Note | Called by ARMv7FIQHandler in PlatformARMv7
A DataMemoryBarrier is executed before and after calling this function |
|---|
function RPi2HandleFIQ(Number,CPUID:LongWord; Thread:TThreadHandle):TThreadHandle;
Description: Call the handler function for an FIQ that was received, or halt if it doesn't exist
| Note | None documented |
|---|
RPi2 SWI functions
function RPi2DispatchSWI(CPUID:LongWord; Thread:TThreadHandle; Request:PSystemCallRequest):TThreadHandle;
Description: Process an SWI request
| Note | Called by ARMv7SoftwareInterruptHandler in PlatformARMv7
A DataMemoryBarrier is executed before and after calling this function |
|---|
RPi2 clock functions
procedure RPi2ClockInterrupt(Parameter:Pointer);
Description: Interrupt handler function for the clock interrupt
| Note | This schedules another clock interrupt to occur CLOCK_CYCLES_PER_TICK in the future, then updates ClockTicks and ClockSeconds and checks for timers to trigger. |
|---|
procedure RPi2ClockUpdate(Cycles:LongWord; var Last:LongWord);
Description: Setup a clock interrupt to trigger after the specified number of clock cycles
| Cycles | Number of cycles after which the timer interrupt is to be triggered |
|---|---|
| Note | This refers to native clock cycles as specified by CLOCK_FREQUENCY |
RPi2 scheduler functions
function RPi2SchedulerInterrupt(CPUID:LongWord; Thread:TThreadHandle; Parameter:Pointer):TThreadHandle;
Description: Interrupt handler function for the scheduler interrupt
| Note | This schedules another scheduler interrupt to occur SCHEDULER_CLOCKS_PER_INTERRUPT in the future, then checks for threads to wakeup or timeout and the next thread to schedule. |
|---|
procedure RPi2SchedulerUpdate(Cycles:LongWord; var Last:LongWord);
Description: Setup a scheduler interrupt to trigger after the specified number of clock cycles
| Cycles | Number of cycles after which the scheduler interrupt is to be triggered |
|---|---|
| Note | This refers to native clock cycles as specified by RPI2_GENERIC_TIMER_FREQUENCY |
procedure RPi2SchedulerSystemCall(Request:PSystemCallRequest);
Description: System Call handler for the scheduler
| Note | This is registered to receive requests for the SYSTEM_CALL_CONTEXT_SWITCH and will perform a context switch from within an SWI |
|---|
RPi2 framebuffer functions
function RPi2FramebufferDeviceAllocate(Framebuffer:PFramebufferDevice; Properties:PFramebufferProperties):LongWord;
Description: Allocate a framebuffer using the Mailbox Property Tags
| Note | None documented |
|---|
function RPi2FramebufferDeviceAllocateAlt(Framebuffer:PFramebufferDevice; Properties:PFramebufferProperties):LongWord;
Description: Allocate a framebuffer using a simple Mailbox Call
| Note | None documented |
|---|
function RPi2FramebufferDeviceRelease(Framebuffer:PFramebufferDevice):LongWord;
Description: To be documented
| Note | None documented |
|---|
function RPi2FramebufferDeviceBlank(Framebuffer:PFramebufferDevice; Blank:Boolean):LongWord;
Description: To be documented
| Note | None documented |
|---|
function RPi2FramebufferDeviceCommit(Framebuffer:PFramebufferDevice; Address,Size,Flags:LongWord):LongWord;
Description: To be documented
| Note | None documented |
|---|
function RPi2FramebufferDeviceSetBacklight(Framebuffer:PFramebufferDevice; Brightness:LongWord):LongWord;
Description: To be documented
| Note | None documented |
|---|
function RPi2FramebufferDeviceSetProperties(Framebuffer:PFramebufferDevice; Properties:PFramebufferProperties):LongWord;
Description: To be documented
| Note | None documented |
|---|
RPi2 helper functions
procedure RPi2Wait; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
procedure RPi2LongWait; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
procedure RPi2ShortWait; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
procedure RPi2SlowBlink; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
procedure RPi2FastBlink; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
procedure RPi2BootBlink; assembler; nostackframe;
Description: Blink the Activity LED without dependency on any other RTL setup
| Note | None documented |
|---|
function RPi2ConvertPowerIdRequest(PowerId:LongWord):LongWord;
Description: Convert Ultibo Power Id to BCM2836 Power Id
| Note | None documented |
|---|
function RPi2ConvertPowerStateRequest(PowerState:LongWord):LongWord;
Description: Convert Ultibo Power State to BCM2836 Power State
| Note | None documented |
|---|
function RPi2ConvertPowerStateResponse(PowerState:LongWord):LongWord;
Description: Convert BCM2836 Power State to Ultibo Power State
| Note | None documented |
|---|
function RPi2ConvertClockIdRequest(ClockId:LongWord):LongWord;
Description: Convert Ultibo Clock Id to BCM2836 Clock Id
| Note | None documented |
|---|
function RPi2ConvertClockStateRequest(ClockState:LongWord):LongWord;
Description: Convert Ultibo Clock State to BCM2836 Clock State
| Note | None documented |
|---|
function RPi2ConvertClockStateResponse(ClockState:LongWord):LongWord;
Description: Convert BCM2836 Clock State to Ultibo Clock State
| Note | None documented |
|---|
function RPi2ConvertVoltageIdRequest(VoltageId:LongWord):LongWord;
Description: Convert Ultibo Voltage Id to BCM2836 Voltage Id
| Note | None documented |
|---|
function RPi2ConvertTemperatureIdRequest(TemperatureId:LongWord):LongWord;
Description: Convert Ultibo Temperature Id to BCM2836 Temperature Id
| Note | None documented |
|---|
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