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@@ -1,8 +1,167 @@
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package orangefork
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func Foo() string {
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import (
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"errors"
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"fmt"
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"strings"
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"periph.io/x/conn/v3/driver/driverreg"
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"periph.io/x/conn/v3/gpio"
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"periph.io/x/conn/v3/pin"
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"periph.io/x/conn/v3/pin/pinreg"
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"periph.io/x/host/v3/allwinner"
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"periph.io/x/host/v3/distro"
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)
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// Present return true if a Orange Pi board is detected.
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func Present() bool {
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if isArm {
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return "is arm"
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// This works for the Orange Pi Zero, not sure if other Orange Pi boards
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// match the same DTModel prefix.
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return strings.HasPrefix(distro.DTModel(), "OrangePi")
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}
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return "is not arm"
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return false
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}
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const (
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boardZero string = "Orange Pi Zero" // + LTS (H2/H3 have identical pinouts)
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)
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var (
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PA1_1 pin.Pin = pin.DC_IN // VCC 3v3 Ext
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PA1_2 pin.Pin = pin.V5
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PA1_3 gpio.PinIO = allwinner.PA12
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PA1_4 pin.Pin = pin.V5
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PA1_5 gpio.PinIO = allwinner.PA11
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PA1_6 pin.Pin = pin.GROUND
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PA1_7 gpio.PinIO = allwinner.PA6
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PA1_8 gpio.PinIO = allwinner.PG6
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PA1_9 pin.Pin = pin.GROUND
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PA1_10 gpio.PinIO = allwinner.PG7
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PA1_11 gpio.PinIO = allwinner.PA1
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PA1_12 gpio.PinIO = allwinner.PA7
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PA1_13 gpio.PinIO = allwinner.PA0
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PA1_14 pin.Pin = pin.GROUND
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PA1_15 gpio.PinIO = allwinner.PA3
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PA1_16 gpio.PinIO = allwinner.PA19
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PA1_17 pin.Pin = pin.DC_IN // VCC 3v3 Ext
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PA1_18 gpio.PinIO = allwinner.PA18
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PA1_19 gpio.PinIO = allwinner.PA15
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PA1_20 pin.Pin = pin.GROUND
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PA1_21 gpio.PinIO = allwinner.PA16
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PA1_22 gpio.PinIO = allwinner.PA2
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PA1_23 gpio.PinIO = allwinner.PA14
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PA1_24 gpio.PinIO = allwinner.PA13
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PA1_25 pin.Pin = pin.GROUND
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PA1_26 gpio.PinIO = allwinner.PA10
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FUN1_1 pin.Pin = pin.V5
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FUN1_2 pin.Pin = pin.GROUND
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FUN1_3 pin.Pin = gpio.INVALID // USB-DM2
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FUN1_4 pin.Pin = gpio.INVALID // USB-DP2
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FUN1_5 pin.Pin = gpio.INVALID // USB-DM3
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FUN1_6 pin.Pin = gpio.INVALID // USB-DP3
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FUN1_7 pin.Pin = allwinner.HP_RIGHT // LINEOUTR
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FUN1_8 pin.Pin = allwinner.HP_LEFT // LINEOUTL
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FUN1_9 pin.Pin = gpio.INVALID // TVOUT
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FUN1_10 pin.Pin = gpio.INVALID // MBIAS, Bias Voltage output for mic
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FUN1_11 pin.Pin = allwinner.MIC_IN // INPUT Analog Microphone pin (+)
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FUN1_12 pin.Pin = allwinner.MIC_GND // INPUT Analog Microphone pin (-)
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FUN1_13 pin.Pin = allwinner.PL11 // IR-RX
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)
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// registerHeaders registers the headers for various Orange Pi boards. Currently
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// only Orange Pi Zero is supported.
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func registerHeaders(model string) error {
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// http://www.orangepi.org/html/hardWare/computerAndMicrocontrollers/details/Orange-Pi-Zero.html
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if strings.Contains(model, boardZero) {
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// 26pin expansion port
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if err := pinreg.Register("PA", [][]pin.Pin{
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{PA1_1, PA1_2},
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{PA1_3, PA1_4},
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{PA1_5, PA1_6},
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{PA1_7, PA1_8},
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{PA1_9, PA1_10},
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{PA1_11, PA1_12},
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{PA1_13, PA1_14},
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{PA1_15, PA1_16},
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{PA1_17, PA1_18},
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{PA1_19, PA1_20},
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{PA1_21, PA1_22},
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{PA1_23, PA1_24},
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{PA1_25, PA1_26},
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}); err != nil {
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return err
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}
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// 13pin function interface
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if err := pinreg.Register("FUN", [][]pin.Pin{
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{FUN1_1},
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{FUN1_2},
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{FUN1_3},
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{FUN1_4},
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{FUN1_5},
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{FUN1_6},
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{FUN1_7},
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{FUN1_8},
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{FUN1_9},
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{FUN1_10},
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{FUN1_11},
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{FUN1_12},
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{FUN1_13},
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}); err != nil {
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return err
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}
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}
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return nil
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}
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// driver implements periph.Driver.
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type driver struct {
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}
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// String is the text representation of the board.
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func (d *driver) String() string {
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return "fork-orangepi"
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}
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// Prerequisites load drivers before the actual driver is loaded. For
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// these boards, we do not need any prerequisites.
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func (d *driver) Prerequisites() []string {
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return nil
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}
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// After this driver is loaded, we need to load generic Allwinner drivers
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// for the GPIO pins which are identical on all Allwinner CPUs.
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func (d *driver) After() []string {
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return []string{"allwinner-gpio", "allwinner-gpio-pl"}
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}
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// Init initializes the driver by checking its presence and if found, the
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// driver will be registered.
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func (d *driver) Init() (bool, error) {
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if !Present() {
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return false, errors.New("borad Orange Pi not detected")
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}
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model := distro.DTModel()
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if model == "<unknown>" {
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return true, fmt.Errorf("orangepi: failed to obtain model")
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}
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err := registerHeaders(model)
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return true, err
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}
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// init register the driver.
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func init() {
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if isArm {
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driverreg.MustRegister(&drv)
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} else {
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fmt.Println("Is not arm, cannot load orange fork")
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}
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}
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var drv driver
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