Difference between revisions of "Unit RPIFT5406"
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! '''Note''' | ! '''Note''' | ||
| Called only during system startup | | Called only during system startup | ||
| + | |- | ||
| + | |} | ||
| + | </div></div> | ||
| + | <br /> | ||
| + | |||
| + | '''RPiFT5406 touch functions''' | ||
| + | |||
| + | <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 RPiFT5406TouchStart(Touch:PTouchDevice):LongWord;</pre> | ||
| + | <div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of TouchDeviceStart API for RPiFT5406</div> | ||
| + | <div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;"> | ||
| + | {| class="wikitable" style="font-size: 14px; background: white;" | ||
| + | |- | ||
| + | ! '''Note''' | ||
| + | | Not intended to be called directly by applications, use TouchDeviceStart instead | ||
| + | |- | ||
| + | |} | ||
| + | </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 RPiFT5406TouchStop(Touch:PTouchDevice):LongWord;</pre> | ||
| + | <div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of TouchDeviceStop API for RPiFT5406</div> | ||
| + | <div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;"> | ||
| + | {| class="wikitable" style="font-size: 14px; background: white;" | ||
| + | |- | ||
| + | ! '''Note''' | ||
| + | | Not intended to be called directly by applications, use TouchDeviceStop instead | ||
| + | |- | ||
| + | |} | ||
| + | </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 RPiFT5406TouchExecute(Touch:PRPiFT5406Touch):PtrInt;</pre> | ||
| + | <div style="font-size: 14px; padding-left: 12px;">'''Description:''' Thread function for the RPiFT5406 Touch controller driver. The thread polls the memory touch buffer approximately 60 times per second for new touch data and inserts received touch points into the buffer of the passed device</div> | ||
| + | <div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;"> | ||
| + | {| class="wikitable" style="font-size: 14px; background: white;" | ||
| + | |- | ||
| + | ! '''Note''' | ||
| + | | Not intended to be called directly by applications | ||
|- | |- | ||
|} | |} | ||
Revision as of 01:34, 14 October 2016
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Description
This is the touchscreen driver for the Official Raspberry Pi 7" Touchscreen. While this device uses a FocalTech FT5406 10 point capactive touchscreen controller it is actually connected to the GPU and not directly accessible to the ARM processor.
In order to make the touchscreen data available the GPU provides a memory based interface that can be read by polling an address returned from a mailbox call.
The Linux driver uses a thread to poll the data approximately 60 times per second so this driver does something similar.
Constants
To be documented
Type definitions
To be documented
Public variables
To be documented
Function declarations
Initialization functions
procedure RPiFT5406Init;
Description: Initialize the RPiFT5406 unit and create, register and start the device
| Note | Called only during system startup |
|---|
RPiFT5406 touch functions
function RPiFT5406TouchStart(Touch:PTouchDevice):LongWord;
Description: Implementation of TouchDeviceStart API for RPiFT5406
| Note | Not intended to be called directly by applications, use TouchDeviceStart instead |
|---|
function RPiFT5406TouchStop(Touch:PTouchDevice):LongWord;
Description: Implementation of TouchDeviceStop API for RPiFT5406
| Note | Not intended to be called directly by applications, use TouchDeviceStop instead |
|---|
function RPiFT5406TouchExecute(Touch:PRPiFT5406Touch):PtrInt;
Description: Thread function for the RPiFT5406 Touch controller driver. The thread polls the memory touch buffer approximately 60 times per second for new touch data and inserts received touch points into the buffer of the passed device
| Note | Not intended to be called directly by applications |
|---|
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