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busylight.go
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busylight.go
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package led
import (
"github.com/boombuler/hid"
"image/color"
"time"
)
// Device type: BusyLight UC
var BusyLightUC DeviceType
// Device type: BusyLight Lync
var BusyLightLync DeviceType
func init() {
BusyLightUC = addDriver(usbDriver{
Name: "BusyLight UC",
Type: &BusyLightUC,
VendorId: 0x27BB,
ProductId: 0x3BCB,
Open: func(d hid.Device) (Device, error) {
return newBusyLight(d, func(c color.Color) {
r, g, b, _ := c.RGBA()
d.Write([]byte{0x00, 0x00, 0x00, byte(r >> 8), byte(g >> 8), byte(b >> 8), 0x00, 0x00, 0x00})
}), nil
},
})
BusyLightLync = addDriver(usbDriver{
Name: "BusyLight Lync",
Type: &BusyLightLync,
VendorId: 0x04D8,
ProductId: 0xF848,
Open: func(d hid.Device) (Device, error) {
return newBusyLight(d, func(c color.Color) {
r, g, b, _ := c.RGBA()
d.Write([]byte{0x00, 0x00, 0x00, byte(r >> 8), byte(g >> 8), byte(b >> 8), 0x00, 0x00, 0x00})
}), nil
},
})
}
type busylightDev struct {
closeChan chan<- struct{}
colorChan chan<- color.Color
}
func newBusyLight(d hid.Device, setcolorFn func(c color.Color)) *busylightDev {
closeChan := make(chan struct{})
colorChan := make(chan color.Color)
ticker := time.NewTicker(20 * time.Second) // If nothing is send after 30 seconds the device turns off.
go func() {
var curColor color.Color = color.Black
closed := false
for !closed {
select {
case <-ticker.C:
setcolorFn(curColor)
case col := <-colorChan:
curColor = col
setcolorFn(curColor)
case <-closeChan:
ticker.Stop()
setcolorFn(color.Black) // turn off device
d.Close()
closed = true
}
}
}()
return &busylightDev{closeChan: closeChan, colorChan: colorChan}
}
func (d *busylightDev) SetKeepActive(v bool) error {
return ErrKeepActiveNotSupported
}
func (d *busylightDev) SetColor(c color.Color) error {
d.colorChan <- c
return nil
}
func (d *busylightDev) Close() {
d.closeChan <- struct{}{}
}