86 lines
1.7 KiB
Go
86 lines
1.7 KiB
Go
// Copyright 2017 The Periph Authors. All rights reserved.
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// Use of this source code is governed under the Apache License, Version 2.0
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// that can be found in the LICENSE file.
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// Emulate independent GPIOs.
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package ftdi
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import (
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"errors"
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"time"
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"periph.io/x/conn/v3/gpio"
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"periph.io/x/conn/v3/physic"
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)
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// invalidPin is a non-working (not implemented) pin on a FTDI device.
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//
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// invalidPin implements gpio.PinIO.
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type invalidPin struct {
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n string
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num int
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}
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// String implements pin.Pin.
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func (p *invalidPin) String() string {
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return p.n
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}
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// Name implements pin.Pin.
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func (p *invalidPin) Name() string {
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return p.n
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}
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// Number implements pin.Pin.
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func (p *invalidPin) Number() int {
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return p.num
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}
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// Function implements pin.Pin.
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func (p *invalidPin) Function() string {
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return "N/A"
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}
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// Halt implements gpio.PinIO.
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func (p *invalidPin) Halt() error {
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return nil
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}
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// In implements gpio.PinIn.
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func (p *invalidPin) In(pull gpio.Pull, e gpio.Edge) error {
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return errors.New("d2xx: to be implemented")
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}
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// Read implements gpio.PinIn.
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func (p *invalidPin) Read() gpio.Level {
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return gpio.Low
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}
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// WaitForEdge implements gpio.PinIn.
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func (p *invalidPin) WaitForEdge(t time.Duration) bool {
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return false
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}
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// Pull implements gpio.PinIn.
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func (p *invalidPin) Pull() gpio.Pull {
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return gpio.PullNoChange
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}
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// DefaultPull implements gpio.PinIn.
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func (p *invalidPin) DefaultPull() gpio.Pull {
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return gpio.PullNoChange
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}
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// Out implements gpio.PinOut.
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func (p *invalidPin) Out(l gpio.Level) error {
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return errors.New("d2xx: to be implemented")
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}
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// PWM implements gpio.PinOut.
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func (p *invalidPin) PWM(d gpio.Duty, f physic.Frequency) error {
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return errors.New("d2xx: to be implemented")
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}
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var _ gpio.PinIO = &invalidPin{}
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