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This commit is contained in:
Wijnand Modderman-Lenstra 2015-12-08 14:54:18 +01:00
parent 09234cef4a
commit c67f84086b
1 changed files with 6 additions and 0 deletions
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6
homebrew/homebrew.go
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@ -119,22 +119,28 @@ type Frame struct {
DMR [33]byte
}
// CallType returns if the current frame is a group or unit call.
func (f *Frame) CallType() CallType {
return CallType((f.Flags >> 1) & 0x01)
}
// DataType is the slot type when the FrameType is a data sync frame. For voice
// frames it's the voice sequence number in DMR numbering, where 0=A, 1=B, etc.
func (f *Frame) DataType() byte {
return f.Flags >> 4
}
// FrameType returns if the current frame is a voice, voice sync or data sync frame.
func (f *Frame) FrameType() FrameType {
return FrameType((f.Flags >> 2) & 0x03)
}
// Slot is the time slot number.
func (f *Frame) Slot() int {
return int(f.Flags&0x01) + 1
}
// ParseFrame parses a raw DMR data frame.
func ParseFrame(data []byte) (*Frame, error) {
if len(data) != 53 {
return nil, errors.New("invalid packet length")