Difference between revisions of "Unit RTC"

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! '''RTC'''
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! RTC
 
| The RTC device to get properties from
 
| The RTC device to get properties from
 
|-
 
|-
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! '''Properties'''
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! Properties
 
| Pointer to a PRTCProperties structure to fill in
 
| Pointer to a PRTCProperties structure to fill in
 
|-
 
|-
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! '''Return'''
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! Return
 
| ERROR_SUCCESS if completed or another error code on failure
 
| ERROR_SUCCESS if completed or another error code on failure
 
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! '''Note'''
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! Note
 
| Replaced by RTCDeviceGetProperties for consistency
 
| Replaced by RTCDeviceGetProperties for consistency
 
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! '''RTC'''
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! RTC
 
| The RTC device to get properties from
 
| The RTC device to get properties from
 
|-
 
|-
−
! '''Properties'''
+
! Properties
 
| Pointer to a PRTCProperties structure to fill in
 
| Pointer to a PRTCProperties structure to fill in
 
|-
 
|-
−
! '''Return'''
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! Return
 
| ERROR_SUCCESS if completed or another error code on failure
 
| ERROR_SUCCESS if completed or another error code on failure
 
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|-
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! '''Return'''
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! Return
 
| Pointer to new RTC entry or nil if RTC could not be created
 
| Pointer to new RTC entry or nil if RTC could not be created
 
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! '''Size'''
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! Size
 
| Size in bytes to allocate for new RTC (Including the RTC entry)
 
| Size in bytes to allocate for new RTC (Including the RTC entry)
 
|-
 
|-
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! '''Return'''
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! Return
 
| Pointer to new RTC entry or nil if RTC could not be created
 
| Pointer to new RTC entry or nil if RTC could not be created
 
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| Returned time is 100 nanosecond ticks since 1 January 1601
 
| Returned time is 100 nanosecond ticks since 1 January 1601
 
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! '''Time'''
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! Time
 
| The time to be set
 
| The time to be set
 
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! '''Return'''
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! Return
 
| The device time after setting (or 0 on failure)
 
| The device time after setting (or 0 on failure)
 
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| Time and returned time is 100 nanosecond ticks since 1 January 1601
 
| Time and returned time is 100 nanosecond ticks since 1 January 1601
 
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Revision as of 05:13, 20 April 2018

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Description

Ultibo Real Time Clock device interface unit

The RTC unit provides the device interface for real time clock modules to be registered with Ultibo core. Each RTC module requires a driver that communicates with the specific hardware to implement the device interface although many devices may use the same chip and will be covered by a single driver.

This unit registers the RTCGetTime and RTCSetTime functions with the Platform unit to enable hardware independent access to a real time clock module.

Constants


[Expand]
RTC specific constants RTC_*


[Expand]
RTC device type RTC_TYPE_*


[Expand]
RTC device state RTC_STATE_*


[Expand]
RTC device flag RTC_FLAG_*


[Expand]
RTC logging RTC_LOG_*


Type definitions


RTC properties

[Expand]

PRTCProperties = ^TRTCProperties;

TRTCProperties = record

RTC enumeration callback

TRTCEnumerate = function(RTC:PRTCDevice; Data:Pointer):LongWord;

RTC notification callback

TRTCNotification = function(Device:PDevice; Data:Pointer; Notification:LongWord):LongWord;

RTC device start

TRTCDeviceStart = function(RTC:PRTCDevice):LongWord;

RTC device stop

TRTCDeviceStop = function(RTC:PRTCDevice):LongWord;

RTC device get time

TRTCDeviceGetTime = function(RTC:PRTCDevice):Int64;

RTC device set time

TRTCDeviceSetTime = function(RTC:PRTCDevice; const Time:Int64):Int64;

RTC device get properties

TRTCDeviceGetProperties = function(RTC:PRTCDevice; Properties:PRTCProperties):LongWord;

RTC device

[Expand]

PRTCDevice = ^TRTCDevice;

TRTCDevice = record


Public variables


RTC logging

RTC_DEFAULT_LOG_LEVEL:LongWord = RTC_LOG_LEVEL_DEBUG; Minimum level for RTC messages. Only messages with level greater than or equal to this will be printed.
RTC_LOG_ENABLED:Boolean;


Function declarations


Initialization functions

[Expand] 
procedure RTCInit;
Description: To be documented


RTC functions

[Expand] 
function RTCDeviceStart(RTC:PRTCDevice):LongWord;
Description: To be documented


[Expand] 
function RTCDeviceStop(RTC:PRTCDevice):LongWord;
Description: To be documented


[Expand] 
function RTCDeviceGetTime(RTC:PRTCDevice):Int64;
Description: To be documented


[Expand] 
function RTCDeviceSetTime(RTC:PRTCDevice; const Time:Int64):Int64;
Description: To be documented


[Expand] 
function RTCDeviceProperties(RTC:PRTCDevice; Properties:PRTCProperties):LongWord; inline;
Description: Get the properties for the specified RTC device


[Expand] 
function RTCDeviceGetProperties(RTC:PRTCDevice;Properties:PRTCProperties):LongWord;
Description: Get the properties for the specified RTC device


[Expand] 
function RTCDeviceCreate:PRTCDevice;
Description: Create a new RTC entry


[Expand] 
function RTCDeviceCreateEx(Size:LongWord):PRTCDevice;
Description: Create a new RTC entry


[Expand] 
function RTCDeviceDestroy(RTC:PRTCDevice):LongWord;
Description: Destroy an existing RTC entry


[Expand] 
function RTCDeviceRegister(RTC:PRTCDevice):LongWord;
Description: Register a new RTC in the RTC table


[Expand] 
function RTCDeviceDeregister(RTC:PRTCDevice):LongWord;
Description: Deregister a RTC from the RTC table


[Expand] 
function RTCDeviceFind(RTCId:LongWord):PRTCDevice;
Description: To be documented


[Expand] 
function RTCDeviceFindByName(const Name:String):PRTCDevice; inline;
Description: To be documented


[Expand] 
function RTCDeviceFindByDescription(const Description:String):PRTCDevice; inline;
Description: To be documented


[Expand] 
function RTCDeviceEnumerate(Callback:TRTCEnumerate; Data:Pointer):LongWord;
Description: To be documented


[Expand] 
function RTCDeviceNotification(RTC:PRTCDevice; Callback:TRTCNotification; Data:Pointer; Notification,Flags:LongWord):LongWord;
Description: To be documented


RTL RTC functions

[Expand] 
function SysRTCAvailable:Boolean;
Description: Check if an RTC device is available


[Expand] 
function SysRTCGetTime:Int64;
Description: Get the current time from a RTC device


[Expand] 
function SysRTCSetTime(const Time:Int64):Int64;
Description: Set the current time for a RTC device


RTC helper functions

[Expand] 
function RTCGetCount:LongWord; inline;
Description: Get the current RTC count


[Expand] 
function RTCDeviceGetDefault:PRTCDevice; inline;
Description: Get the current default RTC device


[Expand] 
function RTCDeviceSetDefault(RTC:PRTCDevice):LongWord;
Description: Set the current default RTC device


[Expand] 
function RTCDeviceCheck(RTC:PRTCDevice):PRTCDevice;
Description: Check if the supplied RTC is in the RTC table


[Expand] 
function RTCTimeIsValid(const Time:TSystemTime):Boolean;
Description: To be documented


[Expand] 
function RTCSystemTimeToFileTime(const SystemTime:TSystemTime; var FileTime:Int64):Boolean;
Description: System time is assumed to be UTC and returned file time is UTC


[Expand] 
function RTCFileTimeToSystemTime(const FileTime:Int64; var SystemTime:TSystemTime):Boolean;
Description: File time is assumed to be UTC and returned system time is UTC


[Expand] 
procedure RTCLog(Level:LongWord; RTC:PRTCDevice; const AText:String);
Description: To be documented


[Expand] 
procedure RTCLogInfo(RTC:PRTCDevice; const AText:String); inline;
Description: To be documented


[Expand] 
procedure RTCLogWarn(RTC:PRTCDevice; const AText:String); inline;
Description: To be documented


[Expand] 
procedure RTCLogError(RTC:PRTCDevice; const AText:String); inline;
Description: To be documented


[Expand] 
procedure RTCLogDebug(RTC:PRTCDevice; const AText:String); inline;
Description: To be documented


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