Difference between revisions of "Unit PL110"

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''To be documented''
 
  
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'''PL110 functions'''
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
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<pre style="border: 0; padding-bottom:0px;">function PL110FramebufferCreateVGA(Address:LongWord; const Name:String; Rotation,Width,Height,Depth:LongWord):PFramebufferDevice;</pre>
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<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Create, register and allocate a new PL110 Framebuffer device which can be accessed using the framebuffer API</div>
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<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
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{| class="wikitable" style="font-size: 14px; background: white;"
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|-
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! '''Address'''
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| The address of the PL110 registers
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|-
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! '''Name'''
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| The text description of this device which will show in the device list (Optional)
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|-
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! '''Rotation'''
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| The rotation value for the framebuffer device (eg FRAMEBUFFER_ROTATION_180)
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|-
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! '''Width'''
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| The width of the framebuffer in pixels
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|-
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! '''Height'''
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| The height of the framebuffer in pixels
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|-
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! '''Depth'''
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| The color depth (bits per pixel) for the framebuffer (eg FRAMEBUFFER_DEPTH_16)
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|-
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! '''Return'''
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| Pointer to the new Framebuffer device or nil if the framebuffer device could not be created
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|-
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|}
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</div></div>
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<br />
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
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<pre style="border: 0; padding-bottom:0px;">function PL110FramebufferCreateSVGA(Address:LongWord; const Name:String; Rotation,Width,Height,Depth:LongWord):PFramebufferDevice;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Create, register and allocate a new PL110 Framebuffer device which can be accessed using the framebuffer API</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! '''Address'''
 +
| The address of the PL110 registers
 +
|-
 +
! '''Name'''
 +
| The text description of this device which will show in the device list (Optional)
 +
|-
 +
! '''Rotation'''
 +
| The rotation value for the framebuffer device (eg FRAMEBUFFER_ROTATION_180)
 +
|-
 +
! '''Width'''
 +
| The width of the framebuffer in pixels
 +
|-
 +
! '''Height'''
 +
| The height of the framebuffer in pixels
 +
|-
 +
! '''Depth'''
 +
| The color depth (bits per pixel) for the framebuffer (eg FRAMEBUFFER_DEPTH_16)
 +
|-
 +
! '''Return'''
 +
| Pointer to the new Framebuffer device or nil if the framebuffer device could not be created
 +
|-
 +
|}
 +
</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 PL110FramebufferDestroy(Framebuffer:PFramebufferDevice):LongWord;</pre>
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<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Release, deregister and destroy a PL110 Framebuffer device created by this driver</div>
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<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
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{| class="wikitable" style="font-size: 14px; background: white;"
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|-
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! '''Framebuffer'''
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| The Framebuffer device to destroy
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|-
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! '''Return'''
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| ERROR_SUCCESS if completed or another error code on failure
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|-
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|}
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</div></div>
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<br />
  
 
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Revision as of 03:27, 23 November 2016

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Description

The ARM PrimeCell PL110 Color LCD Controller is a AMBA compliant module that provides LCD display support for both TFT and STN displays in a variety of configurations.

While the controller supports TFT displays it differs from other TFT display controllers because it has a DMA interface to system memory rather than using SPI or other serial transfer protocols.

Currently this driver only supports the setup required for the QEMU VersatilePB target however it is possible to support additional configurations by adding more variations of the PL110FramebufferCreate functions (eg PL110FramebufferCreateSTN etc).

Note: The driver does not include support for FRAMEBUFFER_FLAG_SYNC as the QEMU emulation of the device does not provide interrupt support at present.

Constants

To be documented

Type definitions

To be documented

Public variables

To be documented

Function declarations


PL110 functions 

function PL110FramebufferCreateVGA(Address:LongWord; const Name:String; Rotation,Width,Height,Depth:LongWord):PFramebufferDevice;
Description: Create, register and allocate a new PL110 Framebuffer device which can be accessed using the framebuffer API
Address The address of the PL110 registers
Name The text description of this device which will show in the device list (Optional)
Rotation The rotation value for the framebuffer device (eg FRAMEBUFFER_ROTATION_180)
Width The width of the framebuffer in pixels
Height The height of the framebuffer in pixels
Depth The color depth (bits per pixel) for the framebuffer (eg FRAMEBUFFER_DEPTH_16)
Return Pointer to the new Framebuffer device or nil if the framebuffer device could not be created 


function PL110FramebufferCreateSVGA(Address:LongWord; const Name:String; Rotation,Width,Height,Depth:LongWord):PFramebufferDevice;
Description: Create, register and allocate a new PL110 Framebuffer device which can be accessed using the framebuffer API
Address The address of the PL110 registers
Name The text description of this device which will show in the device list (Optional)
Rotation The rotation value for the framebuffer device (eg FRAMEBUFFER_ROTATION_180)
Width The width of the framebuffer in pixels
Height The height of the framebuffer in pixels
Depth The color depth (bits per pixel) for the framebuffer (eg FRAMEBUFFER_DEPTH_16)
Return Pointer to the new Framebuffer device or nil if the framebuffer device could not be created 


function PL110FramebufferDestroy(Framebuffer:PFramebufferDevice):LongWord;
Description: Release, deregister and destroy a PL110 Framebuffer device created by this driver
Framebuffer The Framebuffer device to destroy
Return ERROR_SUCCESS if completed or another error code on failure


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