From 5a079a2d114f96d4847d1ee305d5b7c16eeec50e Mon Sep 17 00:00:00 2001 From: 3gg <3gg@shellblade.net> Date: Sat, 27 Dec 2025 12:03:39 -0800 Subject: Initial commit --- .../src/joystick/hidapi/SDL_hidapi_luna.c | 421 +++++++++++++++++++++ 1 file changed, 421 insertions(+) create mode 100644 contrib/SDL-3.2.8/src/joystick/hidapi/SDL_hidapi_luna.c (limited to 'contrib/SDL-3.2.8/src/joystick/hidapi/SDL_hidapi_luna.c') diff --git a/contrib/SDL-3.2.8/src/joystick/hidapi/SDL_hidapi_luna.c b/contrib/SDL-3.2.8/src/joystick/hidapi/SDL_hidapi_luna.c new file mode 100644 index 0000000..7c889a6 --- /dev/null +++ b/contrib/SDL-3.2.8/src/joystick/hidapi/SDL_hidapi_luna.c @@ -0,0 +1,421 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2025 Sam Lantinga + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. +*/ +#include "SDL_internal.h" + +#ifdef SDL_JOYSTICK_HIDAPI + +#include "../SDL_sysjoystick.h" +#include "SDL_hidapijoystick_c.h" +#include "SDL_hidapi_rumble.h" + +#ifdef SDL_JOYSTICK_HIDAPI_LUNA + +// Define this if you want to log all packets from the controller +// #define DEBUG_LUNA_PROTOCOL + +// Sending rumble on macOS blocks for a long time and eventually fails +#ifndef SDL_PLATFORM_MACOS +#define ENABLE_LUNA_BLUETOOTH_RUMBLE +#endif + +enum +{ + SDL_GAMEPAD_BUTTON_LUNA_MICROPHONE = 11, + SDL_GAMEPAD_NUM_LUNA_BUTTONS, +}; + +typedef struct +{ + Uint8 last_state[USB_PACKET_LENGTH]; +} SDL_DriverLuna_Context; + +static void HIDAPI_DriverLuna_RegisterHints(SDL_HintCallback callback, void *userdata) +{ + SDL_AddHintCallback(SDL_HINT_JOYSTICK_HIDAPI_LUNA, callback, userdata); +} + +static void HIDAPI_DriverLuna_UnregisterHints(SDL_HintCallback callback, void *userdata) +{ + SDL_RemoveHintCallback(SDL_HINT_JOYSTICK_HIDAPI_LUNA, callback, userdata); +} + +static bool HIDAPI_DriverLuna_IsEnabled(void) +{ + return SDL_GetHintBoolean(SDL_HINT_JOYSTICK_HIDAPI_LUNA, SDL_GetHintBoolean(SDL_HINT_JOYSTICK_HIDAPI, SDL_HIDAPI_DEFAULT)); +} + +static bool HIDAPI_DriverLuna_IsSupportedDevice(SDL_HIDAPI_Device *device, const char *name, SDL_GamepadType type, Uint16 vendor_id, Uint16 product_id, Uint16 version, int interface_number, int interface_class, int interface_subclass, int interface_protocol) +{ + return SDL_IsJoystickAmazonLunaController(vendor_id, product_id); +} + +static bool HIDAPI_DriverLuna_InitDevice(SDL_HIDAPI_Device *device) +{ + SDL_DriverLuna_Context *ctx; + + ctx = (SDL_DriverLuna_Context *)SDL_calloc(1, sizeof(*ctx)); + if (!ctx) { + return false; + } + device->context = ctx; + + HIDAPI_SetDeviceName(device, "Amazon Luna Controller"); + + return HIDAPI_JoystickConnected(device, NULL); +} + +static int HIDAPI_DriverLuna_GetDevicePlayerIndex(SDL_HIDAPI_Device *device, SDL_JoystickID instance_id) +{ + return -1; +} + +static void HIDAPI_DriverLuna_SetDevicePlayerIndex(SDL_HIDAPI_Device *device, SDL_JoystickID instance_id, int player_index) +{ +} + +static bool HIDAPI_DriverLuna_OpenJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick) +{ + SDL_DriverLuna_Context *ctx = (SDL_DriverLuna_Context *)device->context; + + SDL_AssertJoysticksLocked(); + + SDL_zeroa(ctx->last_state); + + // Initialize the joystick capabilities + joystick->nbuttons = SDL_GAMEPAD_NUM_LUNA_BUTTONS; + joystick->naxes = SDL_GAMEPAD_AXIS_COUNT; + joystick->nhats = 1; + + return true; +} + +static bool HIDAPI_DriverLuna_RumbleJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble) +{ +#ifdef ENABLE_LUNA_BLUETOOTH_RUMBLE + if (device->product_id == BLUETOOTH_PRODUCT_LUNA_CONTROLLER) { + // Same packet as on Xbox One controllers connected via Bluetooth + Uint8 rumble_packet[] = { 0x03, 0x0F, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0xEB }; + + // Magnitude is 1..100 so scale the 16-bit input here + rumble_packet[4] = (Uint8)(low_frequency_rumble / 655); + rumble_packet[5] = (Uint8)(high_frequency_rumble / 655); + + if (SDL_HIDAPI_SendRumble(device, rumble_packet, sizeof(rumble_packet)) != sizeof(rumble_packet)) { + return SDL_SetError("Couldn't send rumble packet"); + } + + return true; + } +#endif // ENABLE_LUNA_BLUETOOTH_RUMBLE + + // There is currently no rumble packet over USB + return SDL_Unsupported(); +} + +static bool HIDAPI_DriverLuna_RumbleJoystickTriggers(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint16 left_rumble, Uint16 right_rumble) +{ + return SDL_Unsupported(); +} + +static Uint32 HIDAPI_DriverLuna_GetJoystickCapabilities(SDL_HIDAPI_Device *device, SDL_Joystick *joystick) +{ + Uint32 result = 0; + +#ifdef ENABLE_LUNA_BLUETOOTH_RUMBLE + if (device->product_id == BLUETOOTH_PRODUCT_LUNA_CONTROLLER) { + result |= SDL_JOYSTICK_CAP_RUMBLE; + } +#endif + + return result; +} + +static bool HIDAPI_DriverLuna_SetJoystickLED(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint8 red, Uint8 green, Uint8 blue) +{ + return SDL_Unsupported(); +} + +static bool HIDAPI_DriverLuna_SendJoystickEffect(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, const void *data, int size) +{ + return SDL_Unsupported(); +} + +static bool HIDAPI_DriverLuna_SetJoystickSensorsEnabled(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, bool enabled) +{ + return SDL_Unsupported(); +} + +static void HIDAPI_DriverLuna_HandleUSBStatePacket(SDL_Joystick *joystick, SDL_DriverLuna_Context *ctx, Uint8 *data, int size) +{ + Uint64 timestamp = SDL_GetTicksNS(); + + if (ctx->last_state[1] != data[1]) { + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_SOUTH, ((data[1] & 0x01) != 0)); + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_EAST, ((data[1] & 0x02) != 0)); + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_WEST, ((data[1] & 0x04) != 0)); + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_NORTH, ((data[1] & 0x08) != 0)); + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, ((data[1] & 0x10) != 0)); + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, ((data[1] & 0x20) != 0)); + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_BACK, ((data[1] & 0x40) != 0)); + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_START, ((data[1] & 0x80) != 0)); + } + if (ctx->last_state[2] != data[2]) { + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_GUIDE, ((data[2] & 0x01) != 0)); + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_LUNA_MICROPHONE, ((data[2] & 0x02) != 0)); + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_LEFT_STICK, ((data[2] & 0x04) != 0)); + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_RIGHT_STICK, ((data[2] & 0x08) != 0)); + } + + if (ctx->last_state[3] != data[3]) { + Uint8 hat; + + switch (data[3] & 0x0f) { + case 0: + hat = SDL_HAT_UP; + break; + case 1: + hat = SDL_HAT_RIGHTUP; + break; + case 2: + hat = SDL_HAT_RIGHT; + break; + case 3: + hat = SDL_HAT_RIGHTDOWN; + break; + case 4: + hat = SDL_HAT_DOWN; + break; + case 5: + hat = SDL_HAT_LEFTDOWN; + break; + case 6: + hat = SDL_HAT_LEFT; + break; + case 7: + hat = SDL_HAT_LEFTUP; + break; + default: + hat = SDL_HAT_CENTERED; + break; + } + SDL_SendJoystickHat(timestamp, joystick, 0, hat); + } + +#define READ_STICK_AXIS(offset) \ + (data[offset] == 0x7f ? 0 : (Sint16)HIDAPI_RemapVal((float)data[offset], 0x00, 0xff, SDL_MIN_SINT16, SDL_MAX_SINT16)) + { + Sint16 axis = READ_STICK_AXIS(4); + SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFTX, axis); + axis = READ_STICK_AXIS(5); + SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFTY, axis); + axis = READ_STICK_AXIS(6); + SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHTX, axis); + axis = READ_STICK_AXIS(7); + SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHTY, axis); + } +#undef READ_STICK_AXIS + +#define READ_TRIGGER_AXIS(offset) \ + (Sint16) HIDAPI_RemapVal((float)data[offset], 0x00, 0xff, SDL_MIN_SINT16, SDL_MAX_SINT16) + { + Sint16 axis = READ_TRIGGER_AXIS(8); + SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFT_TRIGGER, axis); + axis = READ_TRIGGER_AXIS(9); + SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHT_TRIGGER, axis); + } +#undef READ_TRIGGER_AXIS + + SDL_memcpy(ctx->last_state, data, SDL_min(size, sizeof(ctx->last_state))); +} + +static void HIDAPI_DriverLuna_HandleBluetoothStatePacket(SDL_Joystick *joystick, SDL_DriverLuna_Context *ctx, Uint8 *data, int size) +{ + Uint64 timestamp = SDL_GetTicksNS(); + + if (size >= 2 && data[0] == 0x02) { + // Home button has dedicated report + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_GUIDE, ((data[1] & 0x1) != 0)); + return; + } + + if (size >= 2 && data[0] == 0x04) { + // Battery level report + int percent = (int)SDL_roundf((data[1] / 255.0f) * 100.0f); + SDL_SendJoystickPowerInfo(joystick, SDL_POWERSTATE_ON_BATTERY, percent); + return; + } + + if (size < 17 || data[0] != 0x01) { + // We don't know how to handle this report + return; + } + + if (ctx->last_state[13] != data[13]) { + Uint8 hat; + + switch (data[13] & 0x0f) { + case 1: + hat = SDL_HAT_UP; + break; + case 2: + hat = SDL_HAT_RIGHTUP; + break; + case 3: + hat = SDL_HAT_RIGHT; + break; + case 4: + hat = SDL_HAT_RIGHTDOWN; + break; + case 5: + hat = SDL_HAT_DOWN; + break; + case 6: + hat = SDL_HAT_LEFTDOWN; + break; + case 7: + hat = SDL_HAT_LEFT; + break; + case 8: + hat = SDL_HAT_LEFTUP; + break; + default: + hat = SDL_HAT_CENTERED; + break; + } + SDL_SendJoystickHat(timestamp, joystick, 0, hat); + } + + if (ctx->last_state[14] != data[14]) { + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_SOUTH, ((data[14] & 0x01) != 0)); + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_EAST, ((data[14] & 0x02) != 0)); + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_WEST, ((data[14] & 0x08) != 0)); + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_NORTH, ((data[14] & 0x10) != 0)); + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, ((data[14] & 0x40) != 0)); + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, ((data[14] & 0x80) != 0)); + } + if (ctx->last_state[15] != data[15]) { + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_START, ((data[15] & 0x08) != 0)); + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_LEFT_STICK, ((data[15] & 0x20) != 0)); + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_RIGHT_STICK, ((data[15] & 0x40) != 0)); + } + if (ctx->last_state[16] != data[16]) { + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_BACK, ((data[16] & 0x01) != 0)); + SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_LUNA_MICROPHONE, ((data[16] & 0x02) != 0)); + } + +#define READ_STICK_AXIS(offset) \ + (data[offset] == 0x7f ? 0 : (Sint16)HIDAPI_RemapVal((float)data[offset], 0x00, 0xff, SDL_MIN_SINT16, SDL_MAX_SINT16)) + { + Sint16 axis = READ_STICK_AXIS(2); + SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFTX, axis); + axis = READ_STICK_AXIS(4); + SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFTY, axis); + axis = READ_STICK_AXIS(6); + SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHTX, axis); + axis = READ_STICK_AXIS(8); + SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHTY, axis); + } +#undef READ_STICK_AXIS + +#define READ_TRIGGER_AXIS(offset) \ + (Sint16) HIDAPI_RemapVal((float)((int)(((data[offset] | (data[offset + 1] << 8)) & 0x3ff) - 0x200)), 0x00 - 0x200, 0x3ff - 0x200, SDL_MIN_SINT16, SDL_MAX_SINT16) + { + Sint16 axis = READ_TRIGGER_AXIS(9); + SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFT_TRIGGER, axis); + axis = READ_TRIGGER_AXIS(11); + SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHT_TRIGGER, axis); + } +#undef READ_TRIGGER_AXIS + + SDL_memcpy(ctx->last_state, data, SDL_min(size, sizeof(ctx->last_state))); +} + +static bool HIDAPI_DriverLuna_UpdateDevice(SDL_HIDAPI_Device *device) +{ + SDL_DriverLuna_Context *ctx = (SDL_DriverLuna_Context *)device->context; + SDL_Joystick *joystick = NULL; + Uint8 data[USB_PACKET_LENGTH]; + int size = 0; + + if (device->num_joysticks > 0) { + joystick = SDL_GetJoystickFromID(device->joysticks[0]); + } else { + return false; + } + + while ((size = SDL_hid_read_timeout(device->dev, data, sizeof(data), 0)) > 0) { +#ifdef DEBUG_LUNA_PROTOCOL + HIDAPI_DumpPacket("Amazon Luna packet: size = %d", data, size); +#endif + if (!joystick) { + continue; + } + + switch (size) { + case 10: + HIDAPI_DriverLuna_HandleUSBStatePacket(joystick, ctx, data, size); + break; + default: + HIDAPI_DriverLuna_HandleBluetoothStatePacket(joystick, ctx, data, size); + break; + } + } + + if (size < 0) { + // Read error, device is disconnected + HIDAPI_JoystickDisconnected(device, device->joysticks[0]); + } + return (size >= 0); +} + +static void HIDAPI_DriverLuna_CloseJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick) +{ +} + +static void HIDAPI_DriverLuna_FreeDevice(SDL_HIDAPI_Device *device) +{ +} + +SDL_HIDAPI_DeviceDriver SDL_HIDAPI_DriverLuna = { + SDL_HINT_JOYSTICK_HIDAPI_LUNA, + true, + HIDAPI_DriverLuna_RegisterHints, + HIDAPI_DriverLuna_UnregisterHints, + HIDAPI_DriverLuna_IsEnabled, + HIDAPI_DriverLuna_IsSupportedDevice, + HIDAPI_DriverLuna_InitDevice, + HIDAPI_DriverLuna_GetDevicePlayerIndex, + HIDAPI_DriverLuna_SetDevicePlayerIndex, + HIDAPI_DriverLuna_UpdateDevice, + HIDAPI_DriverLuna_OpenJoystick, + HIDAPI_DriverLuna_RumbleJoystick, + HIDAPI_DriverLuna_RumbleJoystickTriggers, + HIDAPI_DriverLuna_GetJoystickCapabilities, + HIDAPI_DriverLuna_SetJoystickLED, + HIDAPI_DriverLuna_SendJoystickEffect, + HIDAPI_DriverLuna_SetJoystickSensorsEnabled, + HIDAPI_DriverLuna_CloseJoystick, + HIDAPI_DriverLuna_FreeDevice, +}; + +#endif // SDL_JOYSTICK_HIDAPI_LUNA + +#endif // SDL_JOYSTICK_HIDAPI -- cgit v1.2.3