56 lines
914 B
Go
56 lines
914 B
Go
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package backend
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import (
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"io"
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"github.com/jacobsa/go-serial/serial"
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"github.com/tonychee7000/Arremi/consts"
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)
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var (
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// MidiDev is a global midi device.
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MidiDev *MIDIDevice
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// MIDIError check this. if not nil, go exit
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MIDIError error
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)
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func init() {
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MidiDev, MIDIError = NewMIDIDevice()
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}
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// Run called by frontend.
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func Run(chSerialName chan string, ch chan int, errCh chan error) {
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serialName := <-chSerialName
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sPort, err := serial.Open(serial.OpenOptions{
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PortName: "/dev/" + serialName,
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BaudRate: consts.SerialBaudrate,
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DataBits: 8,
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StopBits: 1,
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ParityMode: serial.PARITY_NONE,
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MinimumReadSize: 3,
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})
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if err != nil {
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errCh <- err
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return
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}
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defer MidiDev.AllNoteOff()
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defer sPort.Close()
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go func() {
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_, err := io.Copy(MidiDev, sPort)
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if err != nil {
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errCh <- err
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}
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ch <- 1
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}()
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for {
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select {
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case <-ch:
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return
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}
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}
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}
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