func init() {
embd.Register(embd.HostRPi, func(rev int) *embd.Descriptor {
// Refer to http://elinux.org/RPi_HardwareHistory#Board_Revision_History
// for details.
pins := rev3Pins
if rev < 16 {
pins = rev2Pins
}
if rev < 4 {
pins = rev1Pins
}
return &embd.Descriptor{
GPIODriver: func() embd.GPIODriver {
return embd.NewGPIODriver(pins, generic.NewDigitalPin, nil, nil)
},
I2CDriver: func() embd.I2CDriver {
return embd.NewI2CDriver(generic.NewI2CBus)
},
LEDDriver: func() embd.LEDDriver {
return embd.NewLEDDriver(ledMap, generic.NewLED)
},
SPIDriver: func() embd.SPIDriver {
return embd.NewSPIDriver(spiDeviceMinor, generic.NewSPIBus, nil)
},
}
})
}
func init() {
embd.Register(embd.HostBBB, func(rev int) *embd.Descriptor {
return &embd.Descriptor{
GPIODriver: func() embd.GPIODriver {
return embd.NewGPIODriver(pins, generic.NewDigitalPin, newAnalogPin, newPWMPin)
},
I2CDriver: func() embd.I2CDriver {
return embd.NewI2CDriver(generic.NewI2CBus)
},
LEDDriver: func() embd.LEDDriver {
return embd.NewLEDDriver(ledMap, generic.NewLED)
},
SPIDriver: func() embd.SPIDriver {
return embd.NewSPIDriver(spiDeviceMinor, generic.NewSPIBus, spiInitializer)
},
}
})
}
func TestPWMPinClose(t *testing.T) {
pinMap := embd.PinMap{
&embd.PinDesc{ID: "P1_1", Aliases: []string{"1"}, Caps: embd.CapPWM},
}
driver := embd.NewGPIODriver(pinMap, nil, nil, newPWMPin)
pin, err := driver.PWMPin(1)
if err != nil {
t.Fatalf("Looking up pwm pin 1: got %v", err)
}
pin.Close()
pin2, err := driver.PWMPin(1)
if err != nil {
t.Fatalf("Looking up pwm pin 1: got %v", err)
}
if pin == pin2 {
t.Fatal("Looking up closed pwm pin 1: but got the old instance")
}
}