aio: remove direct pin, does not make sens here

Signed-off-by: deadprogram <ron@hybridgroup.com>

drivers/aio/README.md

@@ -12,7 +12,6 @@ go get -d -u gobot.io/x/gobot/...
 ## Hardware Support
 Gobot has a extensible system for connecting to hardware devices. The following AIO devices are currently supported:
   - Analog Sensor
-  - Direct Pin
   - Grove Light Sensor
   - Grove Rotary Dial
   - Grove Sound Sensor

drivers/aio/direct_pin_driver.go

@@ -1,60 +0,0 @@
-package aio
-
-import (
-	"gobot.io/x/gobot"
-)
-
-// DirectPinDriver represents a AIO pin
-type DirectPinDriver struct {
-	name       string
-	pin        string
-	connection gobot.Connection
-	gobot.Commander
-}
-
-// NewDirectPinDriver return a new DirectPinDriver given a Connection and pin.
-//
-// Adds the following API Command:
-// 	"AnalogRead" - See DirectPinDriver.AnalogRead
-func NewDirectPinDriver(a gobot.Connection, pin string) *DirectPinDriver {
-	d := &DirectPinDriver{
-		name:       "DirectPin",
-		connection: a,
-		pin:        pin,
-		Commander:  gobot.NewCommander(),
-	}
-
-	d.AddCommand("AnalogRead", func(params map[string]interface{}) interface{} {
-		val, err := d.AnalogRead()
-		return map[string]interface{}{"val": val, "err": err}
-	})
-
-	return d
-}
-
-// Name returns the DirectPinDrivers name
-func (d *DirectPinDriver) Name() string { return d.name }
-
-// SetName sets the DirectPinDrivers name
-func (d *DirectPinDriver) SetName(n string) { d.name = n }
-
-// Pin returns the DirectPinDrivers pin
-func (d *DirectPinDriver) Pin() string { return d.pin }
-
-// Connection returns the DirectPinDrivers Connection
-func (d *DirectPinDriver) Connection() gobot.Connection { return d.connection }
-
-// Start implements the Driver interface
-func (d *DirectPinDriver) Start() (err error) { return }
-
-// Halt implements the Driver interface
-func (d *DirectPinDriver) Halt() (err error) { return }
-
-// AnalogRead reads the current analog reading of the pin
-func (d *DirectPinDriver) AnalogRead() (val int, err error) {
-	if reader, ok := d.Connection().(AnalogReader); ok {
-		return reader.AnalogRead(d.Pin())
-	}
-	err = ErrAnalogReadUnsupported
-	return
-}

drivers/aio/direct_pin_driver_test.go

@@ -1,51 +0,0 @@
-package aio
-
-import (
-	"testing"
-
-	"gobot.io/x/gobot"
-	"gobot.io/x/gobot/gobottest"
-)
-
-var _ gobot.Driver = (*DirectPinDriver)(nil)
-
-func initTestDirectPinDriver(conn gobot.Connection) *DirectPinDriver {
-	testAdaptorAnalogRead = func() (val int, err error) {
-		val = 80
-		return
-	}
-	return NewDirectPinDriver(conn, "1")
-}
-
-func TestDirectPinDriver(t *testing.T) {
-	var ret map[string]interface{}
-
-	d := initTestDirectPinDriver(newAioTestAdaptor())
-	gobottest.Assert(t, d.Pin(), "1")
-	gobottest.Refute(t, d.Connection(), nil)
-
-	ret = d.Command("AnalogRead")(nil).(map[string]interface{})
-
-	gobottest.Assert(t, ret["val"].(int), 80)
-	gobottest.Assert(t, ret["err"], nil)
-}
-
-func TestDirectPinDriverStart(t *testing.T) {
-	d := initTestDirectPinDriver(newAioTestAdaptor())
-	gobottest.Assert(t, d.Start(), nil)
-}
-
-func TestDirectPinDriverHalt(t *testing.T) {
-	d := initTestDirectPinDriver(newAioTestAdaptor())
-	gobottest.Assert(t, d.Halt(), nil)
-}
-
-func TestDirectPinDriverAnalogRead(t *testing.T) {
-	d := initTestDirectPinDriver(newAioTestAdaptor())
-	ret, err := d.AnalogRead()
-	gobottest.Assert(t, ret, 80)
-
-	d = initTestDirectPinDriver(&aioTestBareAdaptor{})
-	ret, err = d.AnalogRead()
-	gobottest.Assert(t, err, ErrAnalogReadUnsupported)
-}