Input streaming protocol¶

struct InputData {
    u16 seq_id; // The first/low byte of the seq_id is initialized with the fw_version
    u16 buttons;  // see ButtonsMask
    u8 power_status;  // see PowerStatusMask
    u8 battery_charge;
    u16 left_stick_x;
    u16 left_stick_y;
    u16 right_stick_x;
    u16 right_stick_y;
    u8 audio_volume;
    AccelerometerData accelerometer;
    GyroscopeData gyro;
    MagnetData magnet;
    TouchscreenData touchscreen;
    ExtraMagnetData extramagnet;
    u8 mic_status;
    u8 extra_buttons;  // see ExtraButtonsMask
    u8 irc_status;
    char unk0;
    u8 unk1;
    char unk2[43];
    u8 fw_version_neg;  // ~fw_version
};

enum ButtonsMask {
    SYNC = 0x0001,
    HOME = 0x0002,
    MINUS = 0x0004,
    PLUS = 0x0008,
    R = 0x0010,
    L = 0x0020,
    ZR = 0x0040,
    ZL = 0x0080,
    DOWN = 0x0100,
    UP = 0x0200,
    RIGHT = 0x0400,
    LEFT = 0x0800,
    Y = 0x1000,
    X = 0x2000,
    B = 0x4000,
    A = 0x8000
};

enum PowerStatusMask {
    AC_PLUGGED_IN = 0x01,
    POWER_BUTTON_PRESSED = 0x02,
    HEADPHONES_PLUGGED_IN = 0x20,
    CHARGING = 0x40,
    POWER_USB = 0x80,  // not used on retail
};

struct AccelerometerData {
    s16 x_accel;
    s16 y_accel;
    s16 z_accel;
};

struct GyroscopeData {
    s24 roll;
    s24 yaw;
    s24 pitch;
};

struct MagnetData {
    s16 x;
    s16 y;
    s16 z;
};

struct ExtraMagnetData {
    // These bytes are concatenated to the s16 values in MagnetData, so that each
    // value is 24bit in total.
    s8 x;
    s8 y;
    s8 z;
};

struct TouchscreenData {
    // 10 points are sampled at about the same time - average them to get
    // a more accurate reading.
    struct {
        struct {
            u16 pad : 1;
            u16 extra : 3;  // See the next section.
            u16 value : 12;
        } coords[2];
    } points[10];
};

enum ExtraButtonsMask {
    NFC_STATUS_MASK = 0x0F,
    TV_MENU = 0x10,
    TV = 0x20,
    R3 = 0x40,
    L3 = 0x80,
};