58 lines
1.2 KiB
Go
58 lines
1.2 KiB
Go
package board
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import "time"
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// This file contains dummy devices, for devices which don't support a
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// particular kind of device.
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// Dummy button input that doesn't actually read any inputs.
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// Used for boards that don't have any buttons.
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type noButtons struct{}
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func (b noButtons) Configure() {
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}
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func (b noButtons) ReadInput() {
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}
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func (b noButtons) NextEvent() KeyEvent {
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return NoKeyEvent
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}
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// Dummy touch object that doesn't read any input.
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// Used for displays without touch capabilities.
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type noTouch struct{}
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func (t noTouch) ReadTouch() []TouchPoint {
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return nil
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}
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var lastWaitForVBlank time.Time
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// Utility function for all those boards that don't support vblank.
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func dummyWaitForVBlank(defaultInterval time.Duration) {
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waitUntil := lastWaitForVBlank.Add(defaultInterval)
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now := time.Now()
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duration := waitUntil.Sub(now)
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if duration < 0 {
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lastWaitForVBlank = now
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return
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}
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time.Sleep(duration)
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lastWaitForVBlank = waitUntil
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}
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// Dummy implementation of the Power value, for devices with no battery or where
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// the battery status cannot be read.
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type dummyBattery struct {
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state ChargeState
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}
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func (b dummyBattery) Configure() {
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// nothing to do here
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}
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func (b dummyBattery) Status() (ChargeState, uint32, int8) {
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return b.state, 0, -1
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}
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