mirror of https://github.com/kidoman/embd
59 lines
731 B
Go
59 lines
731 B
Go
package embd
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import (
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"fmt"
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"strconv"
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)
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const (
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CapNormal int = 1 << iota
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CapI2C
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CapUART
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CapSPI
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CapGPMC
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CapLCD
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CapPWM
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CapAnalog
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)
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type PinDesc struct {
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ID string
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Aliases []string
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Caps int
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DigitalLogical int
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AnalogLogical int
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}
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type PinMap []*PinDesc
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func (m PinMap) Lookup(k interface{}, cap int) (*PinDesc, bool) {
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var ks string
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switch key := k.(type) {
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case int:
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ks = strconv.Itoa(key)
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case string:
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ks = key
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case fmt.Stringer:
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ks = key.String()
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default:
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return nil, false
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}
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for i := range m {
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pd := m[i]
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if pd.ID == ks {
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return pd, true
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}
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for j := range pd.Aliases {
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if pd.Aliases[j] == ks && pd.Caps&cap != 0 {
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return pd, true
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}
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}
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}
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return nil, false
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}
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