Difference between revisions of "Unit Serial"

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Line 598: Line 598:
 
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<pre style="border: 0; padding-bottom:0px;">function SerialDeviceOpen(Serial:PSerialDevice; BaudRate,DataBits,StopBits,Parity,FlowControl,ReceiveDepth,TransmitDepth:LongWord):LongWord;</pre>
 
<pre style="border: 0; padding-bottom:0px;">function SerialDeviceOpen(Serial:PSerialDevice; BaudRate,DataBits,StopBits,Parity,FlowControl,ReceiveDepth,TransmitDepth:LongWord):LongWord;</pre>
−
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
+
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Open a Serial device ready for sending and receiving</div>
 
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<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! '''Serial'''
−
| None documented
+
| The Serial device to open
 +
|-
 +
! '''BaudRate'''
 +
| Baud rate for the connection (eg 9600, 57600, 115200 etc
 +
|-
 +
! '''DataBits'''
 +
| Size of the data (eg SERIAL_DATA_8BIT)
 +
|-
 +
! '''StopBits'''
 +
| Number of stop bits (eg SERIAL_STOP_1BIT)
 +
|-
 +
! '''Parity'''
 +
| Parity type for the data (eg SERIAL_PARITY_NONE)
 +
|-
 +
! '''FlowControl'''
 +
| Flow control for the connection (eg SERIAL_FLOW_NONE)
 +
|-
 +
! '''ReceiveDepth'''
 +
| Size of the receive buffer (0 = Default size)
 +
|-
 +
! '''Transmit Depth'''
 +
| Size of the transmit buffer (0 = Default size)
 +
|-
 +
! '''Return'''
 +
| ERROR_SUCCESS if completed or another error code on failure
 
|-
 
|-
 
|}
 
|}
Line 610: Line 634:
 
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<pre style="border: 0; padding-bottom:0px;">function SerialDeviceClose(Serial:PSerialDevice):LongWord;</pre>
 
<pre style="border: 0; padding-bottom:0px;">function SerialDeviceClose(Serial:PSerialDevice):LongWord;</pre>
−
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
+
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Close a Serial device and terminate sending and receiving</div>
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! '''Serial'''
 +
| The Serial device to close
 
|-
 
|-
 
! '''Note'''
 
! '''Note'''
−
| None documented
+
| ERROR_SUCCESS if completed or another error code on failure
 
|-
 
|-
 
|}
 
|}
Line 622: Line 649:
 
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<pre style="border: 0; padding-bottom:0px;">function SerialDeviceRead(Serial:PSerialDevice; Buffer:Pointer; Size,Flags:LongWord; var Count:LongWord):LongWord;</pre>
 
<pre style="border: 0; padding-bottom:0px;">function SerialDeviceRead(Serial:PSerialDevice; Buffer:Pointer; Size,Flags:LongWord; var Count:LongWord):LongWord;</pre>
−
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
+
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Read data from a Serial device</div>
 
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<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! '''Serial'''
−
| None documented
+
| The Serial device to read from
 +
|-
 +
! '''Buffer'''
 +
| Pointer to a buffer to receive the data
 +
|-
 +
! '''Size'''
 +
| The size of the buffer
 +
|-
 +
! '''Flags'''
 +
| The flags to control reading (eg SERIAL_READ_NON_BLOCK)
 +
|-
 +
! '''Count'''
 +
| The number of bytes read on return
 +
|-
 +
! '''Return'''
 +
| ERROR_SUCCESS if completed or another error code on failure
 
|-
 
|-
 
|}
 
|}
Line 634: Line 676:
 
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<pre style="border: 0; padding-bottom:0px;">function SerialDeviceWrite(Serial:PSerialDevice; Buffer:Pointer; Size,Flags:LongWord; var Count:LongWord):LongWord;</pre>
 
<pre style="border: 0; padding-bottom:0px;">function SerialDeviceWrite(Serial:PSerialDevice; Buffer:Pointer; Size,Flags:LongWord; var Count:LongWord):LongWord;</pre>
−
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
+
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Write data to a Serial device</div>
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! '''Serial'''
−
| None documented
+
| The Serial device to write to
 +
|-
 +
! '''Buffer'''
 +
| Pointer to a buffer of data to transmit
 +
|-
 +
! '''Size'''
 +
| The size of the buffer
 +
|-
 +
! '''Flags'''
 +
| The flags to control writing (eg SERIAL_WRITE_NON_BLOCK)
 +
|-
 +
! '''Count'''
 +
| The number of bytes written on return
 +
|-
 +
! '''Return'''
 +
| ERROR_SUCCESS if completed or another error code on failure
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function SerialDeviceFlush(Serial:PSerialDevice; Flags:LongWord):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Discard the contents of the receive and/or transmit buffers of a Serial device</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! '''Serial'''
 +
| The Serial device to flush
 +
|-
 +
! '''Flags'''
 +
| The flags to indicate what to flush (eg SERIAL_FLUSH_RECEIVE)
 +
|-
 +
! '''Return'''
 +
| ERROR_SUCCESS if completed or another error code on failure
 
|-
 
|-
 
|}
 
|}
Line 646: Line 721:
 
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<pre style="border: 0; padding-bottom:0px;">function SerialDeviceStatus(Serial:PSerialDevice):LongWord;</pre>
 
<pre style="border: 0; padding-bottom:0px;">function SerialDeviceStatus(Serial:PSerialDevice):LongWord;</pre>
−
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
+
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the current line status of a Serial device</div>
 
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<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! '''Serial'''
−
| None documented
+
| The Serial device to get the status from
 +
|-
 +
! '''Return'''
 +
| A set of flags containing the device status (eg SERIAL_STATUS_RTS)
 
|-
 
|-
 
|}
 
|}
Line 657: Line 735:
 
<br />
 
<br />
 
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
−
<pre style="border: 0; padding-bottom:0px;">function SerialDeviceProperties(Serial:PSerialDevice; Properties:PSerialProperties):LongWord;</pre>
+
<pre style="border: 0; padding-bottom:0px;">function SerialDeviceProperties(Serial:PSerialDevice; Properties:PSerialProperties):LongWord; inline;</pre>
−
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
+
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the properties for the specified Serial device</div>
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! '''Serial'''
 +
| The Serial device to get properties from
 +
|-
 +
! '''Properties'''
 +
| Pointer to a PSerialProperties structure to fill in
 +
|-
 +
! '''Return'''
 +
| ERROR_SUCCESS if completed or another error code on failure
 
|-
 
|-
 
! '''Note'''
 
! '''Note'''
−
| None documented
+
| Replaced by SerialDeviceGetProperties for consistency
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function SerialDeviceGetProperties(Serial:PSerialDevice; Properties:PSerialProperties):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Get the properties for the specified Serial device</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! '''Serial'''
 +
| The Serial device to get properties from
 +
|-
 +
! '''Properties'''
 +
| Pointer to a PSerialProperties structure to fill in
 +
|-
 +
! '''Return'''
 +
| ERROR_SUCCESS if completed or another error code on failure
 
|-
 
|-
 
|}
 
|}
Line 701: Line 806:
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! '''Serial'''
−
| None documented
+
| The serial device to destroy
 +
|-
 +
! '''Return'''
 +
| ERROR_SUCCESS if completed or another error code on failure
 
|-
 
|-
 
|}
 
|}
Line 713: Line 821:
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! '''Serial'''
−
| None documented
+
| The serial device to register
 +
|-
 +
! '''Return'''
 +
| ERROR_SUCCESS if completed or another error code on failure
 
|-
 
|-
 
|}
 
|}
Line 725: Line 836:
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! '''Serial'''
−
| None documented
+
| The serial device to deregister
 +
|-
 +
! '''Return'''
 +
| ERROR_SUCCESS if completed or another error code on failure
 
|-
 
|-
 
|}
 
|}
Line 733: Line 847:
 
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<pre style="border: 0; padding-bottom:0px;">function SerialDeviceFind(SerialId:LongWord):PSerialDevice;</pre>
 
<pre style="border: 0; padding-bottom:0px;">function SerialDeviceFind(SerialId:LongWord):PSerialDevice;</pre>
−
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
+
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Find a serial device by Id in the serial table</div>
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! '''SerialId'''
−
| None documented
+
| The Id number of the serial to find
 +
|-
 +
! '''Return'''
 +
| Pointer to serial device entry or nil if not found
 
|-
 
|-
 
|}
 
|}
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 
<pre style="border: 0; padding-bottom:0px;">function SerialDeviceFindByName(const Name:String):PSerialDevice; inline;</pre>
 
<pre style="border: 0; padding-bottom:0px;">function SerialDeviceFindByName(const Name:String):PSerialDevice; inline;</pre>
−
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
+
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Find a serial device by name in the serial table</div>
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! '''Name'''
−
| None documented
+
| The name of the serial to find (eg Serial0)
 +
|-
 +
! '''Return'''
 +
| Pointer to serial device entry or nil if not found
 
|-
 
|-
 
|}
 
|}
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 
<pre style="border: 0; padding-bottom:0px;">function SerialDeviceFindByDescription(const Description:String):PSerialDevice; inline;</pre>
 
<pre style="border: 0; padding-bottom:0px;">function SerialDeviceFindByDescription(const Description:String):PSerialDevice; inline;</pre>
−
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
+
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Find a serial device by description in the serial table</div>
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! '''Description'''
−
| None documented
+
| The description of the serial to find (eg BCM2836 PL011 UART)
 +
|-
 +
! '''Return'''
 +
| Pointer to serial device entry or nil if not found
 
|-
 
|-
 
|}
 
|}
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 
<pre style="border: 0; padding-bottom:0px;">function SerialDeviceEnumerate(Callback:TSerialEnumerate; Data:Pointer):LongWord;</pre>
 
<pre style="border: 0; padding-bottom:0px;">function SerialDeviceEnumerate(Callback:TSerialEnumerate; Data:Pointer):LongWord;</pre>
−
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
+
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Enumerate all serial devices in the serial table</div>
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! '''Callback'''
−
| None documented
+
| The callback function to call for each serial in the table
 +
|-
 +
! '''Data'''
 +
| A private data pointer to pass to callback for each serial in the table
 +
|-
 +
! '''Return'''
 +
| ERROR_SUCCESS if completed or another error code on failure
 
|-
 
|-
 
|}
 
|}
Line 781: Line 910:
 
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 
<pre style="border: 0; padding-bottom:0px;">function SerialDeviceNotification(Serial:PSerialDevice; Callback:TSerialNotification; Data:Pointer; Notification,Flags:LongWord):LongWord;</pre>
 
<pre style="border: 0; padding-bottom:0px;">function SerialDeviceNotification(Serial:PSerialDevice; Callback:TSerialNotification; Data:Pointer; Notification,Flags:LongWord):LongWord;</pre>
−
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
+
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Register a notification for serial device changes</div>
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
−
! '''Note'''
+
! '''Serial'''
−
| None documented
+
| The serial device to notify changes for (Optional, pass nil for all serial devices)
 +
|-
 +
! '''Callback'''
 +
| The function to call when a notification event occurs
 +
|-
 +
! '''Data'''
 +
| A private data pointer to pass to callback when a notification event occurs
 +
|-
 +
! '''Notification'''
 +
| The events to register for notification of (eg DEVICE_NOTIFICATION_REGISTER)
 +
|-
 +
! '''Flags'''
 +
| The flags to control the notification (eg NOTIFIER_FLAG_WORKER)
 
|-
 
|-
 
|}
 
|}
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 
<pre style="border: 0; padding-bottom:0px;">function SerialLoggingStart(Logging:PLoggingDevice):LongWord;</pre>
 
<pre style="border: 0; padding-bottom:0px;">function SerialLoggingStart(Logging:PLoggingDevice):LongWord;</pre>
−
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
+
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of LoggingDeviceStart API for Serial Logging</div>
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
 
! '''Note'''
 
! '''Note'''
−
| None documented
+
| Not intended to be called directly by applications, use LoggingDeviceStart instead
 
|-
 
|-
 
|}
 
|}
Line 808: Line 949:
 
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 
<pre style="border: 0; padding-bottom:0px;">function SerialLoggingStop(Logging:PLoggingDevice):LongWord;</pre>
 
<pre style="border: 0; padding-bottom:0px;">function SerialLoggingStop(Logging:PLoggingDevice):LongWord;</pre>
−
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
+
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of LoggingDeviceStop API for Serial Logging</div>
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
 
! '''Note'''
 
! '''Note'''
−
| None documented
+
| Not intended to be called directly by applications, use LoggingDeviceStop instead
 
|-
 
|-
 
|}
 
|}
Line 820: Line 961:
 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 
<pre style="border: 0; padding-bottom:0px;">function SerialLoggingOutput(Logging:PLoggingDevice; const Data:String):LongWord;</pre>
 
<pre style="border: 0; padding-bottom:0px;">function SerialLoggingOutput(Logging:PLoggingDevice; const Data:String):LongWord;</pre>
−
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
+
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of LoggingDeviceOutput API for Serial Logging</div>
 
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|-
 
|-
 
! '''Note'''
 
! '''Note'''
−
| None documented
+
| Not intended to be called directly by applications, use LoggingDeviceOutput instead
 
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|-
 
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<pre style="border: 0; padding-bottom:0px;">function SerialLoggingDeviceAdd(Serial:PSerialDevice):LongWord;</pre>
 
<pre style="border: 0; padding-bottom:0px;">function SerialLoggingDeviceAdd(Serial:PSerialDevice):LongWord;</pre>
−
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
+
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Add a new serial logging device on receipt of a device register notification</div>
 
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<pre style="border: 0; padding-bottom:0px;">function SerialLoggingDeviceRemove(Serial:PSerialDevice):LongWord;</pre>
 
<pre style="border: 0; padding-bottom:0px;">function SerialLoggingDeviceRemove(Serial:PSerialDevice):LongWord;</pre>
−
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
+
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Remove a serial logging device on receipt of a device deregister notification</div>
 
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<pre style="border: 0; padding-bottom:0px;">function SerialLoggingDeviceEnum(Serial:PSerialDevice; Data:Pointer):LongWord;</pre>
 
<pre style="border: 0; padding-bottom:0px;">function SerialLoggingDeviceEnum(Serial:PSerialDevice; Data:Pointer):LongWord;</pre>
−
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
+
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Enumeration callback for serial logging initialization</div>
 
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|-
 
|-
 
! '''Note'''
 
! '''Note'''
−
| None documented
+
| Not intended to be called directly by applications
 
|-
 
|-
 
|}
 
|}
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<pre style="border: 0; padding-bottom:0px;">function SerialLoggingDeviceNotify(Device:PDevice; Data:Pointer; Notification:LongWord):LongWord;</pre>
 
<pre style="border: 0; padding-bottom:0px;">function SerialLoggingDeviceNotify(Device:PDevice; Data:Pointer; Notification:LongWord):LongWord;</pre>
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<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Notification callback for serial logging device creation or remove</div>
 
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{| class="wikitable" style="font-size: 14px; background: white;"
 
|-
 
|-
 
! '''Note'''
 
! '''Note'''
−
| None documented
+
| Not intended to be called directly by applications
 
|-
 
|-
 
|}
 
|}

Revision as of 03:45, 8 June 2017

Return to Unit Reference


Description

Ultibo Serial interface unit

Serial devices represent a communication device that can be both read and written and has a set of common properties and capabilities. The underlying device may be an actual UART or it may be some other form of device such as a USB to Serial converter. As long as the device can implement the common capabilities then it can be accessed as a serial device without regard to the actual implementation.

Each serial device returns a set of properties that describe the capabilities of the device and includes a set of flags that indicate what features are supported.

Reads from and writes to serial devices are buffered so that varying data transfer rates can be accomodated and both reads and writes allow for non blocking so that a caller can avoid waiting for received data to be available or the device to be ready to transmit.

This unit also implements the serial logging device which can be configured via parameters in the GlobalConfig unit or from the command line.

Constants


[Expand]
Serial specific constants SERIAL_*


[Expand]
Serial device type SERIAL_TYPE_*


[Expand]
Serial device state SERIAL_STATE_*


[Expand]
Serial device flag SERIAL_FLAG_*


[Expand]
Serial read flag SERIAL_READ_*


[Expand]
Serial write flag SERIAL_WRITE_*


[Expand]
Serial flush flag SERIAL_FLUSH_*


[Expand]
Serial status flag SERIAL_STATUS_*


[Expand]
Serial logging SERIAL_LOG_*


Type definitions


Serial properties

[Expand]

PSerialProperties = ^TSerialProperties;

TSerialProperties = record

Serial buffer

[Expand]

PSerialBuffer = ^TSerialBuffer;

TSerialBuffer = record

Serial enumeration callback

TSerialEnumerate = function(Serial:PSerialDevice; Data:Pointer):LongWord;

Serial notification callback

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

Serial device open

TSerialDeviceOpen = function(Serial:PSerialDevice; BaudRate,DataBits,StopBits,Parity,FlowControl,ReceiveDepth,TransmitDepth:LongWord):LongWord;

Serial device close

TSerialDeviceClose = function(Serial:PSerialDevice):LongWord;

Serial device read

TSerialDeviceRead = function(Serial:PSerialDevice; Buffer:Pointer; Size,Flags:LongWord; var Count:LongWord):LongWord;

Serial device write

TSerialDeviceWrite = function(Serial:PSerialDevice; Buffer:Pointer; Size,Flags:LongWord; var Count:LongWord):LongWord;

Serial device flush

TSerialDeviceFlush = function(Serial:PSerialDevice;Flags:LongWord):LongWord;

Serial device status

TSerialDeviceStatus = function(Serial:PSerialDevice):LongWord;

Serial device get properties

TSerialDeviceGetProperties = function(Serial:PSerialDevice; Properties:PSerialProperties):LongWord;

Serial device

[Expand]

PSerialDevice = ^TSerialDevice;

TSerialDevice = record

Serial logging

[Expand]

PSerialLogging = ^TSerialLogging;

TSerialLogging = record


Public variables


Serial logging

SERIAL_DEFAULT_LOG_LEVEL:LongWord = SERIAL_LOG_LEVEL_DEBUG; Minimum level for Serial messages. Only messages with level greater than or equal to this will be printed.
SERIAL_LOG_ENABLED:Boolean;


Function declarations


Initialization functions

[Expand] 
procedure SerialInit;
Description: Initialize the Serial unit and Serial device table


Serial functions

[Expand] 
function SerialDeviceOpen(Serial:PSerialDevice; BaudRate,DataBits,StopBits,Parity,FlowControl,ReceiveDepth,TransmitDepth:LongWord):LongWord;
Description: Open a Serial device ready for sending and receiving


[Expand] 
function SerialDeviceClose(Serial:PSerialDevice):LongWord;
Description: Close a Serial device and terminate sending and receiving


[Expand] 
function SerialDeviceRead(Serial:PSerialDevice; Buffer:Pointer; Size,Flags:LongWord; var Count:LongWord):LongWord;
Description: Read data from a Serial device


[Expand] 
function SerialDeviceWrite(Serial:PSerialDevice; Buffer:Pointer; Size,Flags:LongWord; var Count:LongWord):LongWord;
Description: Write data to a Serial device


[Expand] 
function SerialDeviceFlush(Serial:PSerialDevice; Flags:LongWord):LongWord;
Description: Discard the contents of the receive and/or transmit buffers of a Serial device


[Expand] 
function SerialDeviceStatus(Serial:PSerialDevice):LongWord;
Description: Get the current line status of a Serial device


[Expand] 
function SerialDeviceProperties(Serial:PSerialDevice; Properties:PSerialProperties):LongWord; inline;
Description: Get the properties for the specified Serial device


[Expand] 
function SerialDeviceGetProperties(Serial:PSerialDevice; Properties:PSerialProperties):LongWord;
Description: Get the properties for the specified Serial device


[Expand] 
function SerialDeviceCreate:PSerialDevice;
Description: Create a new Serial entry


[Expand] 
function SerialDeviceCreateEx(Size:LongWord):PSerialDevice;
Description: Create a new Serial entry


[Expand] 
function SerialDeviceDestroy(Serial:PSerialDevice):LongWord;
Description: Destroy an existing Serial entry


[Expand] 
function SerialDeviceRegister(Serial:PSerialDevice):LongWord;
Description: Register a new Serial in the Serial table


[Expand] 
function SerialDeviceDeregister(Serial:PSerialDevice):LongWord;
Description: Deregister a Serial from the Serial table


[Expand] 
function SerialDeviceFind(SerialId:LongWord):PSerialDevice;
Description: Find a serial device by Id in the serial table


[Expand] 
function SerialDeviceFindByName(const Name:String):PSerialDevice; inline;
Description: Find a serial device by name in the serial table


[Expand] 
function SerialDeviceFindByDescription(const Description:String):PSerialDevice; inline;
Description: Find a serial device by description in the serial table


[Expand] 
function SerialDeviceEnumerate(Callback:TSerialEnumerate; Data:Pointer):LongWord;
Description: Enumerate all serial devices in the serial table


[Expand] 
function SerialDeviceNotification(Serial:PSerialDevice; Callback:TSerialNotification; Data:Pointer; Notification,Flags:LongWord):LongWord;
Description: Register a notification for serial device changes


Serial logging functions

[Expand] 
function SerialLoggingStart(Logging:PLoggingDevice):LongWord;
Description: Implementation of LoggingDeviceStart API for Serial Logging


[Expand] 
function SerialLoggingStop(Logging:PLoggingDevice):LongWord;
Description: Implementation of LoggingDeviceStop API for Serial Logging


[Expand] 
function SerialLoggingOutput(Logging:PLoggingDevice; const Data:String):LongWord;
Description: Implementation of LoggingDeviceOutput API for Serial Logging


RTL serial functions

[Expand] 
function SysSerialAvailable:Boolean;
Description: Check if a Serial device is available


[Expand] 
function SysSerialOpen(BaudRate,DataBits,StopBits,Parity,FlowControl,ReceiveDepth,TransmitDepth:LongWord):LongWord;
Description: Open the default Serial device ready for sending and receiving


[Expand] 
function SysSerialClose:LongWord;
Description: Close the default Serial device and terminate sending and receiving


[Expand] 
function SysSerialRead(Buffer:Pointer; Size:LongWord; var Count:LongWord):LongWord;
Description: Read data from the default Serial device


[Expand] 
function SysSerialWrite(Buffer:Pointer; Size:LongWord; var Count:LongWord):LongWord;
Description: Write data to the default Serial device


Serial helper functions

[Expand] 
function SerialGetCount:LongWord; inline;
Description: Get the current Serial count


[Expand] 
function SerialDeviceGetDefault:PSerialDevice; inline;
Description: Get the current default Serial device


[Expand] 
function SerialDeviceSetDefault(Serial:PSerialDevice):LongWord;
Description: Set the current default Serial device


[Expand] 
function SerialDeviceCheck(Serial:PSerialDevice):PSerialDevice;
Description: Check if the supplied Serial is in the Serial table


[Expand] 
function SerialBufferReadStart(Buffer:PSerialBuffer; var Available:LongWord):Pointer;
Description: Return a pointer to the next read from the buffer and the number of bytes that can be read


[Expand] 
function SerialBufferReadComplete(Buffer:PSerialBuffer; Removed:LongWord):Boolean;
Description: Update the buffer to reflect the number of bytes removed when reading


[Expand] 
function SerialBufferWriteStart(Buffer:PSerialBuffer; var Available:LongWord):Pointer;
Description: Return a pointer to the next write to the buffer and the number of bytes that can be written


[Expand] 
function SerialBufferWriteComplete(Buffer:PSerialBuffer; Added:LongWord):Boolean;
Description: Update the buffer to reflect the number of bytes added when writing


[Expand] 
procedure SerialLog(Level:LongWord; Serial:PSerialDevice; const AText:String);
Description: To be documented


[Expand] 
procedure SerialLogInfo(Serial:PSerialDevice; const AText:String); inline;
Description: To be documented


[Expand] 
procedure SerialLogError(Serial:PSerialDevice; const AText:String); inline;
Description: To be documented


[Expand] 
procedure SerialLogDebug(Serial:PSerialDevice; const AText:String); inline;
Description: To be documented


[Expand] 
function SerialParityToString(Parity:LongWord):String;
Description: To be documented


[Expand] 
function SerialFlowControlToString(Flow:LongWord):String;
Description: To be documented


Serial logging helper functions

[Expand] 
function SerialLoggingDeviceAdd(Serial:PSerialDevice):LongWord;
Description: Add a new serial logging device on receipt of a device register notification


[Expand] 
function SerialLoggingDeviceRemove(Serial:PSerialDevice):LongWord;
Description: Remove a serial logging device on receipt of a device deregister notification


[Expand] 
function SerialLoggingDeviceParameters(Serial:PSerialDevice; const Parameters:String; var BaudRate,Parity,DataBits,StopBits:LongWord):LongWord;
Description: Break down the serial parameters value into component parts of baud rate, parity, data bits and stop bits


[Expand] 
function SerialLoggingFirstWord(var Value:String;const Delimiter:String):String;
Description: To be documented


[Expand] 
function SerialLoggingDeviceEnum(Serial:PSerialDevice; Data:Pointer):LongWord;
Description: Enumeration callback for serial logging initialization


[Expand] 
function SerialLoggingDeviceNotify(Device:PDevice; Data:Pointer; Notification:LongWord):LongWord;
Description: Notification callback for serial logging device creation or remove


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