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Added support for GameSir simple report mode

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This commit is contained in:
Sam Lantinga
2026-02-04 08:21:43 -08:00
parent 8a9722e9f4
commit d43d29269d
1 changed files with 200 additions and 5 deletions
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205
src/joystick/hidapi/SDL_hidapi_gamesir.c
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@@ -368,7 +368,6 @@ static bool HIDAPI_DriverGameSir_InitDevice(SDL_HIDAPI_Device *device)
HIDAPI_SetDeviceName(device, "GameSir Controller");
break;
}
SendGameSirModeSwitch(device);
return HIDAPI_JoystickConnected(device, NULL);
}
@@ -398,9 +397,17 @@ static bool HIDAPI_DriverGameSir_OpenJoystick(SDL_HIDAPI_Device *device, SDL_Joy
SDL_zeroa(ctx->last_state);
ctx->last_state_initialized = false;
SendGameSirModeSwitch(device);
bool extended_report_mode = SendGameSirModeSwitch(device);
if (!extended_report_mode) {
ctx->sensors_supported = false;
ctx->led_supported = false;
}
joystick->nbuttons = 35;
if (extended_report_mode) {
joystick->nbuttons = 35;
} else {
joystick->nbuttons = 11;
}
joystick->naxes = SDL_GAMEPAD_AXIS_COUNT;
joystick->nhats = 1;
@@ -796,6 +803,187 @@ static void HIDAPI_DriverGameSir_HandleStatePacket(SDL_Joystick *joystick, SDL_D
ctx->last_state_initialized = true;
}
static void HIDAPI_DriverGameSir_HandleSimpleStatePacketBluetooth(SDL_Joystick *joystick, SDL_DriverGamesir_Context *ctx, Uint8 *data, int size)
{
Sint16 axis;
Uint64 timestamp = SDL_GetTicksNS();
const Uint8 *last = ctx->last_state;
if (last[5] != data[5]) {
Uint8 buttons = data[5];
// BTN1: A B C X Y Z L1 R1
// Use bitwise operations to check whether each button is pressed
// buttons & BTN_A returns the value of BTN_A (if pressed) or 0 (if not pressed)
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_SOUTH, buttons & BTN_A);
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_EAST, buttons & BTN_B);
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_WEST, buttons & BTN_X);
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_NORTH, buttons & BTN_Y);
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, buttons & BTN_L1);
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, buttons & BTN_R1);
}
if (last[6] != data[6]) {
Uint8 buttons = data[6];
// BTN2: L2 R2 SELECT START HOME L3 R3 CAPTURE
// Note: L2/R2 appear as digital buttons in data[6], but their actual analog values are in data[7]/data[8].
// Only handle the other buttons here; trigger analog values are processed later in the code.
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_BACK, buttons & BTN_SELECT);
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_START, buttons & BTN_START);
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_GUIDE, buttons & BTN_HOME);
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_LEFT_STICK, buttons & BTN_L3);
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_RIGHT_STICK, buttons & BTN_R3);
}
if (last[4] != data[4]) {
Uint8 hat;
switch (data[4] & 0xF) {
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] == 0x80 ? 0 : (Sint16)HIDAPI_RemapVal((float)((int)data[offset] - 0x80), -0x80, 0xff - 0x80, SDL_MIN_SINT16, SDL_MAX_SINT16))
{
axis = READ_STICK_AXIS(0);
SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFTX, axis);
axis = READ_STICK_AXIS(1);
SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFTY, axis);
axis = READ_STICK_AXIS(2);
SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHTX, axis);
axis = READ_STICK_AXIS(3);
SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHTY, axis);
}
#undef READ_STICK_AXIS
#define READ_TRIGGER_AXIS(offset) \
(Sint16)HIDAPI_RemapVal((float)data[offset], 0, 0xff, SDL_MIN_SINT16, SDL_MAX_SINT16)
axis = READ_TRIGGER_AXIS(8);
SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFT_TRIGGER, axis);
axis = READ_TRIGGER_AXIS(7);
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_DriverGameSir_HandleSimpleStatePacketUSB(SDL_Joystick *joystick, SDL_DriverGamesir_Context *ctx, Uint8 *data, int size)
{
Sint16 axis;
Uint64 timestamp = SDL_GetTicksNS();
const Uint8 *last = ctx->last_state;
if (last[0] != data[0]) {
Uint8 buttons = data[0];
// BTN1: A B C X Y Z L1 R1
// Use bitwise operations to check whether each button is pressed
// buttons & BTN_A returns the value of BTN_A (if pressed) or 0 (if not pressed)
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_SOUTH, buttons & BTN_A);
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_EAST, buttons & BTN_B);
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_WEST, buttons & BTN_X);
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_NORTH, buttons & BTN_Y);
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, buttons & BTN_L1);
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, buttons & BTN_R1);
}
if (last[1] != data[1]) {
Uint8 buttons = data[1];
// BTN2: L2 R2 SELECT START HOME L3 R3 CAPTURE
// Note: L2/R2 appear as digital buttons in data[6], but their actual analog values are in data[7]/data[8].
// Only handle the other buttons here; trigger analog values are processed later in the code.
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_BACK, buttons & BTN_SELECT);
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_START, buttons & BTN_START);
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_GUIDE, buttons & BTN_HOME);
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_LEFT_STICK, buttons & BTN_L3);
SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_RIGHT_STICK, buttons & BTN_R3);
}
if (last[2] != data[2]) {
Uint8 hat;
switch (data[2] & 0xF) {
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] == 0x80 ? 0 : (Sint16)HIDAPI_RemapVal((float)((int)data[offset] - 0x80), -0x80, 0xff - 0x80, SDL_MIN_SINT16, SDL_MAX_SINT16))
{
axis = READ_STICK_AXIS(3);
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(5);
SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHTX, axis);
axis = READ_STICK_AXIS(6);
SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHTY, axis);
}
#undef READ_STICK_AXIS
#define READ_TRIGGER_AXIS(offset) \
(Sint16)HIDAPI_RemapVal((float)data[offset], 0, 0xff, SDL_MIN_SINT16, SDL_MAX_SINT16)
axis = READ_TRIGGER_AXIS(7);
SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFT_TRIGGER, axis);
axis = READ_TRIGGER_AXIS(8);
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_DriverGameSir_UpdateDevice(SDL_HIDAPI_Device *device)
{
@@ -829,12 +1017,19 @@ static bool HIDAPI_DriverGameSir_UpdateDevice(SDL_HIDAPI_Device *device)
if (size >= 3 && data[0] == 0x43 && data[1] == GAMESIR_PACKET_HEADER_0 && data[2] == GAMESIR_PACKET_HEADER_1_GAMEPAD) {
payload = data + 3;
payload_size = size - 3;
HIDAPI_DriverGameSir_HandleStatePacket(joystick, ctx, payload, payload_size);
} else if (size >= 2 && data[0] == GAMESIR_PACKET_HEADER_0 && data[1] == GAMESIR_PACKET_HEADER_1_GAMEPAD) {
payload = data + 2;
payload_size = size - 2;
}
if (payload) {
HIDAPI_DriverGameSir_HandleStatePacket(joystick, ctx, payload, payload_size);
} else if (size >= 10 && data[0] == 0x07) {
payload = data + 1;
payload_size = size - 1;
HIDAPI_DriverGameSir_HandleSimpleStatePacketBluetooth(joystick, ctx, payload, payload_size);
} else if (size == 9) {
payload = data;
payload_size = size;
HIDAPI_DriverGameSir_HandleSimpleStatePacketUSB(joystick, ctx, payload, payload_size);
}
}