Unit Platform

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Description

To be documented

Constants

To be documented

Type definitions

To be documented

Public variables

To be documented

Function declarations


Initialization functions 

procedure PlatformInit;
Description: Initialize platform specific information for the current hardware
Note To be documented 


procedure CPUInit;
Description: Initialize the CPU including performance features etc (Where Applicable)
Note To be documented 


procedure FPUInit;
Description: Initialize the Floating Point Processor Unit (Where Applicable)
Note To be documented 


procedure GPUInit;
Description: Initialize the Graphics Processor Unit (Where Applicable)
Note To be documented 


procedure MMUInit;
Description: Initialize the Memory Management Unit (Where Applicable)
Note To be documented 


procedure SMPInit;
Description: Initialize the Symetric Multi Processor support (Where Applicable)
Note Secondary CPU boot is performed by SecondaryInit in Threads 


procedure CacheInit;
Description: Initialize CPU Data and Instruction Caching (Where Applicable)
Note To be documented 


procedure BoardInit;
Description: Initialize Board specific information (Where Applicable)
Note To be documented 


procedure MemoryInit;
Description: Initialize Memory specific information (Where Applicable)
Note To be documented 


procedure ClockInit;
Description: Initialize the Clock handling
Note To be documented 


procedure PowerInit;
Description: Initialize Power management (Where Applicable)
Note To be documented 


procedure MailboxInit;
Description: Initialize Mailbox access (Where Applicable)
Note To be documented 


procedure InterruptInit;
Description: Initialize Interrupt handling
Note To be documented 


procedure PeripheralInit;
Description: Initialize Peripheral devices (Where Applicable)
Note To be documented 


procedure ParseBootTags;
Description: Parse any boot tag information passed by the bootloader (Where Applicable)
Note To be documented 


procedure ParseCommandLine;
Description: Setup argc, argv and cmdline and process known command line options (Where Applicable)
Note To be documented 


procedure ParseEnvironment;
Description: Setup envp and process known environment options (Where Applicable)
Note To be documented


Boot functions 

procedure BootBlink; inline;
Description: Blink the Activity LED (Where Applicable)
Note Intended for startup diagnostics when bootstrapping a new board


LED functions 

procedure PowerLEDEnable; inline;
Description: Enable the Power LED (Where Applicable)
Note To be documented 


procedure PowerLEDOn; inline;
Description: Turn On the Power LED (Where Applicable)
Note To be documented 


procedure PowerLEDOff; inline;
Description: Turn Off the Power LED (Where Applicable)
Note To be documented 


procedure ActivityLEDEnable; inline;
Description: Enable the Activity LED (Where Applicable)
Note To be documented 


procedure ActivityLEDOn; inline;
Description: Turn On the Activity LED (Where Applicable)
Note To be documented 


procedure ActivityLEDOff; inline;
Description: Turn Off the Activity LED (Where Applicable)
Note To be documented


Counter functions (Timer device) 

function CounterAvailable:Boolean; inline;
Description: Check if a counter is currently available
Note To be documented 


function CounterRead:LongWord; inline;
Description: Read the current value of the default counter
Return The 32 bit current value of the current or 0 on failure 


function CounterRead64:Int64; inline;
Description: Read the current value of the default counter
Return The 64 bit current value of the current or 0 on failure 


function CounterWait:LongWord; inline;
Description: Wait for the current interval to expire on the default counter
Return ERROR_SUCCESS if the interval expired or another error code on failure 


function CounterEvent(Callback:TCounterCallback; Data:Pointer):LongWord; inline;
Description: Schedule a function to be called when the current interval expires on the default counter
Callback The function to be called when the interval expires
Data A pointer to be pass to the function when the interval expires (Optional)
Return ERROR_SUCCESS if the callback was scheduled successfully or another error code on failure 


function CounterGetRate:LongWord; inline;
Description: Get the current clock rate in Hz of the default counter
Return The current clock rate in Hz or 0 on failure 


function CounterSetRate(Rate:LongWord):LongWord; inline;
Description: Set the current clock rate in Hz of the default counter
Rate The clock rate in Hz to set
Return ERROR_SUCCESS if the clock rate was set or another error code on failure 


function CounterGetInterval:LongWord; inline;
Description: Get the current interval in milliseconds of the default counter
Return The current interval in milliseconds or 0 on failure (or not set) 


function CounterSetInterval(Interval:LongWord):LongWord; inline;
Description: Set the current interval in milliseconds of the default counter
Interval The interval in milliseconds to set
Return ERROR_SUCCESS if the interval was set or another error code on failure


Mailbox functions 

function MailboxReceive(Mailbox,Channel:LongWord):LongWord; inline;
Description: Receive from specifed mailbox on specified channel
Note To be documented 


procedure MailboxSend(Mailbox,Channel,Data:LongWord); inline;
Description: Send to specifed mailbox on specified channel
Note To be documented 


function MailboxCall(Mailbox,Channel,Data:LongWord; var Response:LongWord):LongWord; inline;
Description: Perform a transaction (Send/Receive) to specifed mailbox on specified channel
Note To be documented 


function MailboxCallEx(Mailbox,Channel,Data:LongWord; var Response:LongWord; Timeout:LongWord):LongWord; inline;
Description: Perform a transaction (Send/Receive) to specifed mailbox on specified channel
Note To be documented 


function MailboxPropertyCall(Mailbox,Channel:LongWord; Data:Pointer; var Response:LongWord):LongWord; inline;
Description: Perform a property tag transaction (Send/Receive) to specifed mailbox on specified channel
Note To be documented 


function MailboxPropertyCallEx(Mailbox,Channel:LongWord; Data:Pointer; var Response:LongWord; Timeout:LongWord):LongWord; inline;
Description: Perform a property tag transaction (Send/Receive) to specifed mailbox on specified channel
Note To be documented


Random number functions 

function RandomAvailable:Boolean; inline;
Description: Check if a hardware random number generator is currently available
Note The software random number generator from the RTL is always available 


procedure RandomSeed(Seed:LongWord); inline;
Description: To be documented
Note To be documented 


function RandomReadLongInt(Limit:LongInt):LongInt; inline;
Description: To be documented
Note To be documented 


function RandomReadInt64(Limit:Int64):Int64; inline;
Description: To be documented
Note To be documented 


function RandomReadExtended:Extended; inline;
Description: To be documented
Note To be documented


Watchdog Timer Functions 

function WatchdogAvailable:Boolean; inline;
Description: Check if a watchdog timer is currently available
Note To be documented 


function WatchdogStart(Milliseconds:LongWord):LongWord; inline;
Description: To be documented
Note To be documented 


function WatchdogStop:LongWord; inline;
Description: To be documented
Note To be documented 


function WatchdogRefresh(Milliseconds:LongWord):LongWord; inline;
Description: To be documented
Note To be documented


Interrupt request (IRQ) functions 

function RequestIRQ(CPUID,Number:LongWord; Handler:TInterruptHandler; Parameter:Pointer):LongWord; inline;
Description: Request registration of the supplied handler to the specified IRQ number
Note If the IRQ number is already registered then the request will fail 


function ReleaseIRQ(CPUID,Number:LongWord; Handler:TInterruptHandler; Parameter:Pointer):LongWord; inline;
Description: Request deregistration of the supplied handler from the specified IRQ number
Note If the IRQ number is not currently registered then the request will fail 


function RequestExIRQ(CPUID,Number:LongWord; Handler:TInterruptHandler; HandlerEx:TInterruptExHandler; Parameter:Pointer):LongWord; inline;
Description: Request registration of the supplied extended handler to the specified IRQ number
Note If the IRQ number is already registered then the request will fail 


function ReleaseExIRQ(CPUID,Number:LongWord; Handler:TInterruptHandler; HandlerEx:TInterruptExHandler; Parameter:Pointer):LongWord; inline;
Description: Request deregistration of the supplied extended handler from the specified IRQ number
Note If the IRQ number is not currently registered then the request will fail


Fast interrupt request (FIQ) functions 

function RequestFIQ(CPUID,Number:LongWord; Handler:TInterruptHandler; Parameter:Pointer):LongWord; inline;
Description: Request registration of the supplied handler to the specified FIQ number
Note If the FIQ number is already registered then the request will fail 


function ReleaseFIQ(CPUID,Number:LongWord; Handler:TInterruptHandler; Parameter:Pointer):LongWord; inline;
Description: Request deregistration of the supplied handler from the specified FIQ number
Note If the FIQ number is not currently registered then the request will fail 


function RequestExFIQ(CPUID,Number:LongWord; Handler:TInterruptHandler; HandlerEx:TInterruptExHandler; Parameter:Pointer):LongWord; inline;
Description: Request registration of the supplied extended handler to the specified FIQ number
Note If the FIQ number is already registered then the request will fail 


function ReleaseExFIQ(CPUID,Number:LongWord; Handler:TInterruptHandler; HandlerEx:TInterruptExHandler; Parameter:Pointer):LongWord; inline;
Description: Request deregistration of the supplied extended handler from the specified FIQ number
Note If the FIQ number is not currently registered then the request will fail


System functions 

function SystemRestart(Delay:LongWord):LongWord; inline;
Description: Restart the system
Note To be documented 


function SystemShutdown(Delay:LongWord):LongWord; inline;
Description: Shutdown the system
Note To be documented 


function SystemGetUptime:Int64; inline;
Description: Get the current system up time in 100 nanosecond ticks since 1/1/1601
Return The current system up time
Note This is the same time format as Windows FILE_TIME and is intended to allow compatibility with file system functions etc 


function SystemGetCommandLine:String; inline;
Description: Get the current command line
Note To be documented 


function SystemGetEnvironment:Pointer; inline;
Description: Get the current environment
Note To be documented 


procedure SystemCall(Number:LongWord; Param1,Param2,Param3:PtrUInt); inline;
Description: Perform a System Call function with the supplied parameters (Where Applicable)
Note To be documented


CPU Functions 

function CPUGetArch:LongWord; inline;
Description: Get the CPU architecture for this board
Note To be documented 


function CPUGetType:LongWord; inline;
Description: Get the CPU type for this board
Note To be documented 


function CPUGetBoot:LongWord; inline;
Description: Get the boot CPU for this board
Note To be documented 


function CPUGetMask:LongWord; inline;
Description: Get the CPU mask for this board
Note To be documented 


function CPUGetCount:LongWord; inline;
Description: Get the CPU count for this board
Note To be documented 


function CPUGetMode:LongWord; inline;
Description: Get the current CPU moded
Note The return value is specific to the CPU type 


function CPUGetState:LongWord; inline;
Description: Get the current CPU state
Note To be documented 


function CPUGetCurrent:LongWord; inline;
Description: Get the current CPU ID
Note To be documented 


function CPUGetMemory(var Address:PtrUInt; var Length:LongWord):LongWord; inline;
Description: Get the memory start and size available to the CPU
Note To be documented 


function CPUGetPercentage(CPUID:LongWord):Double; inline;
Description: Get the last second ulitization of the specified CPU in percentage
CPUID The CPU to get utilization from or CPU_ID_ALL for average of all CPUs 


function CPUGetUtilization(CPUID:LongWord):LongWord; inline;
Description: Get the last second ulitization of the specified CPU
CPUID The CPU to get utilization from or CPU_ID_ALL for average of all CPUs 


function CPUGetModel:LongWord; inline;
Description: Get the CPU model of the current CPU
Note To be documented 


function CPUGetRevision:LongWord; inline;
Description: Get the CPU revision of the current CPU
Note The return value is specific to the CPU type and model 


function CPUGetDescription:String; inline;
Description: Get the CPU description of the current CPU
Note To be documented


FPU functions 

function FPUGetType:LongWord; inline;
Description: Get the FPU type for this board
Note To be documented 


function FPUGetState:LongWord; inline;
Description: Get the current FPU state
Note To be documented


GPU functions 

function GPUGetType:LongWord; inline;
Description: Get the GPU type for this board
Note To be documented 


function GPUGetState:LongWord; inline;
Description: Get the current GPU state
Note To be documented 


function GPUGetMemory(var Address:PtrUInt; var Length:LongWord):LongWord; inline;
Description: Get the memory start and size available to the GPU
Note To be documented



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