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Initial support for the Wii Remote with Nunchuk extension

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This commit is contained in:
Sam Lantinga 2022-09-01 19:29:20 -07:00
parent c887cb02af
commit e19b36d871
1 changed files with 81 additions and 6 deletions
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87
src/joystick/hidapi/SDL_hidapi_wii.c
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@ -37,6 +37,10 @@
/* Define this if you want to log all packets from the controller */
/*#define DEBUG_WII_PROTOCOL*/
#define DEBUG_WII_PROTOCOL
#undef clamp
#define clamp(val, min, max) (((val) > (max)) ? (max) : (((val) < (min)) ? (min) : (val)))
typedef enum {
k_eWiiInputReportIDs_Status = 0x20,
@ -104,7 +108,8 @@ typedef struct {
int m_nPlayerIndex;
SDL_bool m_bRumbleActive;
Uint8 m_rgucReadBuffer[k_unWiiPacketDataLength];
Uint32 m_iLastStatus;
Uint32 m_unLastInput;
Uint32 m_unLastStatus;
struct StickCalibrationData {
Uint16 min;
@ -141,8 +146,7 @@ HIDAPI_DriverWii_IsSupportedDevice(SDL_HIDAPI_Device *device, const char *name,
return SDL_TRUE;
}
if (vendor_id == USB_VENDOR_NINTENDO && product_id == USB_PRODUCT_NINTENDO_WII_REMOTE) {
/* Technically can be supported, but we don't interpret inputs yet */
return SDL_FALSE;
return SDL_TRUE;
}
return SDL_FALSE;
}
@ -597,6 +601,8 @@ HIDAPI_DriverWii_OpenJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick)
RequestButtonPacketType(ctx, GetButtonPacketType(ctx));
ctx->m_unLastInput = SDL_GetTicks();
return SDL_TRUE;
error:
@ -748,10 +754,67 @@ static void HandleWiiUProButtonData(SDL_DriverWii_Context *ctx, SDL_Joystick *jo
UpdatePowerLevelWiiU(joystick, data.rgucExtension[10]);
}
static void HandleWiiButtonData(SDL_DriverWii_Context *ctx, SDL_Joystick *joystick, WiiButtonData data)
{
static const Uint8 buttons[2][8] = {
{
SDL_CONTROLLER_BUTTON_DPAD_LEFT, SDL_CONTROLLER_BUTTON_DPAD_RIGHT, SDL_CONTROLLER_BUTTON_DPAD_DOWN, SDL_CONTROLLER_BUTTON_DPAD_UP,
SDL_CONTROLLER_BUTTON_START, 0xFF /* Unused */, 0xFF /* Unused */, 0xFF /* Unused */,
}, {
SDL_CONTROLLER_BUTTON_X, SDL_CONTROLLER_BUTTON_Y, SDL_CONTROLLER_BUTTON_A, SDL_CONTROLLER_BUTTON_B,
SDL_CONTROLLER_BUTTON_BACK, 0xFF /* Unused */, 0xFF /* Unused */, SDL_CONTROLLER_BUTTON_GUIDE,
}
};
int i, j;
/* Buttons */
for (i = 0; i < 2; i++) {
for (j = 0; j < 8; j++) {
Uint8 button = buttons[i][j];
if (button != 0xFF) {
SDL_bool state = ((data.rgucBaseButtons[i] >> j) & 1) ? SDL_PRESSED : SDL_RELEASED;
SDL_PrivateJoystickButton(joystick, button, state);
}
}
}
}
static void HandleWiiNunchukData(SDL_DriverWii_Context *ctx, SDL_Joystick *joystick, WiiButtonData data)
{
/* FIXME: What is the actual range of these axes? */
const int NUNCHUK_THUMBSTICK_MIN = (128 - 96);
const int NUNCHUK_THUMBSTICK_MAX = (128 + 96);
Sint16 axis;
Uint8 value;
if (data.ucNExtensionBytes < 6) {
return;
}
value = clamp(data.rgucExtension[0], NUNCHUK_THUMBSTICK_MIN, NUNCHUK_THUMBSTICK_MAX);
axis = (Sint16)HIDAPI_RemapVal(value, (float)NUNCHUK_THUMBSTICK_MIN, (float)NUNCHUK_THUMBSTICK_MAX, SDL_JOYSTICK_AXIS_MIN, SDL_JOYSTICK_AXIS_MAX);
SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_LEFTX, axis);
value = clamp(data.rgucExtension[1], NUNCHUK_THUMBSTICK_MIN, NUNCHUK_THUMBSTICK_MAX);
axis = (Sint16)HIDAPI_RemapVal(value, (float)NUNCHUK_THUMBSTICK_MIN, (float)NUNCHUK_THUMBSTICK_MAX, SDL_JOYSTICK_AXIS_MIN, SDL_JOYSTICK_AXIS_MAX);
SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_LEFTY, ~axis);
value = data.rgucExtension[5];
SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_TRIGGERLEFT, (value & 0x01) ? SDL_MIN_SINT16 : SDL_MAX_SINT16);
SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_LEFTSHOULDER, (value & 0x02) ? SDL_RELEASED : SDL_PRESSED);
}
static void HandleButtonData(SDL_DriverWii_Context *ctx, SDL_Joystick *joystick, WiiButtonData data)
{
if (ctx->m_eExtensionControllerType == k_eWiiExtensionControllerType_WiiUPro) {
HandleWiiUProButtonData(ctx, joystick, data);
} else if (ctx->m_eExtensionControllerType == k_eWiiExtensionControllerType_None) {
HandleWiiButtonData(ctx, joystick, data);
} else if (ctx->m_eExtensionControllerType == k_eWiiExtensionControllerType_Nunchuck) {
HandleWiiButtonData(ctx, joystick, data);
HandleWiiNunchukData(ctx, joystick, data);
}
}
@ -869,23 +932,35 @@ HIDAPI_DriverWii_UpdateDevice(SDL_HIDAPI_Device *device)
return SDL_FALSE;
}
now = SDL_GetTicks();
while ((size = ReadInput(ctx)) > 0) {
#ifdef DEBUG_WII_PROTOCOL
HIDAPI_DumpPacket("Wii packet: size = %d", ctx->m_rgucReadBuffer, size);
#endif
HandleInput(ctx, joystick);
ctx->m_unLastInput = now;
}
if (ctx->m_eExtensionControllerType == k_eWiiExtensionControllerType_WiiUPro) {
const Uint32 INPUT_WAIT_TIMEOUT_MS = 3000;
if (SDL_TICKS_PASSED(now, ctx->m_unLastInput + INPUT_WAIT_TIMEOUT_MS)) {
/* Bluetooth may have disconnected, try reopening the controller */
size = -1;
}
}
/* Request a status update periodically to make sure our battery value is up to date */
now = SDL_GetTicks();
if (SDL_TICKS_PASSED(now, ctx->m_iLastStatus + FIFTEEN_MINUTES_IN_MS)) {
if (SDL_TICKS_PASSED(now, ctx->m_unLastStatus + FIFTEEN_MINUTES_IN_MS)) {
Uint8 data[2];
data[0] = k_eWiiOutputReportIDs_StatusRequest;
data[1] = ctx->m_bRumbleActive;
WriteOutput(ctx, data, sizeof(data), SDL_FALSE);
ctx->m_iLastStatus = now;
ctx->m_unLastStatus = now;
}
if (size < 0) {