mirror of https://github.com/kidoman/embd
45 lines
678 B
Go
45 lines
678 B
Go
// Generic OneWire driver.
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package embd
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import "sync"
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type w1BusFactory func(byte) W1Bus
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type w1Driver struct {
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busMap map[byte]W1Bus
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busMapLock sync.Mutex
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ibf w1BusFactory
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}
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// NewW1Driver returns a W1Driver interface which allows control
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// over the OneWire subsystem.
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func NewW1Driver(ibf w1BusFactory) W1Driver {
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return &w1Driver{
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busMap: make(map[byte]W1Bus),
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ibf: ibf,
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}
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}
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func (i *w1Driver) Bus(l byte) W1Bus {
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i.busMapLock.Lock()
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defer i.busMapLock.Unlock()
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if b, ok := i.busMap[l]; ok {
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return b
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}
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b := i.ibf(l)
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i.busMap[l] = b
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return b
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}
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func (i *w1Driver) Close() error {
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for _, b := range i.busMap {
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b.Close()
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}
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return nil
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}
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