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/* -*- mode: c -*- */
/* Extra documentation for state transitions made while
* handling power key presses.
*
* To create PNG image, execute:
* dot -Tpng powerkey.dot -o powerkey.png
*/
digraph display_state_machine {
fontsize=10;
label = "MCE POWERKEY STATE MACHINE";
nodesep=0.3;
ranksep=0.2;
node[fontsize=6];
edge[fontsize=6];
edge[arrowsize=0.3];
node[style=filled,fillcolor=skyblue,shape=box];
node[width=0.00001];
node[height=0.00001];
node[fillcolor=yellow];
IDLE;
PRESSED;
RELEASED;
node[shape=oval,fillcolor=pink];
IDLE -> IDLE [label=" released"];
IDLE -> PRESSED [label=" pressed:\l start long press timer\l"];
PRESSED -> IDLE [label=" long press timeout:\l execute long press actions\l"];
PRESSED -> RELEASED [label=" released:\l stop long press timer\l execute common actions\l start double press timer\l"];
RELEASED -> IDLE [label=" double press timeout:\l execute single press actions\l"];
RELEASED -> IDLE [label=" pressed:\l stop double press timer\l execute double press actions\l"];
}