mirrors/SDL
1
0
Fork 0
mirror of https://github.com/libsdl-org/SDL.git synced 2026-04-20 06:21:09 +00:00
Code Issues Packages Projects Releases Wiki Activity

Added support for the player LED on Nintendo Switch 2 controllers

Browse Source
This commit is contained in:
Sam Lantinga
2025-08-30 10:37:26 -07:00
parent 4b93e7488f
commit 1f007ad5cd
1 changed files with 70 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

81
src/joystick/hidapi/SDL_hidapi_switch2.c
View File

@@ -85,6 +85,9 @@ typedef struct
typedef struct
{
SDL_HIDAPI_Device *device;
SDL_Joystick *joystick;
SDL_LibUSBContext *libusb;
libusb_device_handle *device_handle;
bool interface_claimed;
@@ -97,6 +100,9 @@ typedef struct
Uint8 left_trigger_max;
Uint8 right_trigger_max;
bool player_lights;
int player_index;
bool vertical_mode;
Uint8 last_state[USB_PACKET_LENGTH];
} SDL_DriverSwitch2_Context;
@@ -198,6 +204,37 @@ static void MapTriggerAxis(Uint64 timestamp, SDL_Joystick *joystick, Uint8 axis,
SDL_SendJoystickAxis(timestamp, joystick, axis, mapped_value);
}
static bool UpdateSlotLED(SDL_DriverSwitch2_Context *ctx)
{
unsigned char SET_LED_DATA[] = {
0x09, 0x91, 0x00, 0x07, 0x00, 0x08, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
unsigned char calibration_data[0x50] = {0};
if (ctx->player_lights && ctx->player_index >= 0) {
SET_LED_DATA[8] = (1 << (ctx->player_index % 4));
}
int res = SendBulkData(ctx, SET_LED_DATA, sizeof(SET_LED_DATA));
if (res < 0) {
return SDL_SetError("Couldn't set LED data: %d\n", res);
}
return (RecvBulkData(ctx, calibration_data, 0x40) > 0);
}
static void SDLCALL SDL_PlayerLEDHintChanged(void *userdata, const char *name, const char *oldValue, const char *hint)
{
SDL_DriverSwitch2_Context *ctx = (SDL_DriverSwitch2_Context *)userdata;
bool player_lights = SDL_GetStringBoolean(hint, true);
if (player_lights != ctx->player_lights) {
ctx->player_lights = player_lights;
UpdateSlotLED(ctx);
HIDAPI_UpdateDeviceProperties(ctx->device);
}
}
static void HIDAPI_DriverSwitch2_RegisterHints(SDL_HintCallback callback, void *userdata)
{
SDL_AddHintCallback(SDL_HINT_JOYSTICK_HIDAPI_SWITCH2, callback, userdata);
@@ -300,10 +337,6 @@ static bool HIDAPI_DriverSwitch2_InitUSB(SDL_HIDAPI_Device *device)
0x03, 0x91, 0x00, 0x0d, 0x00, 0x08, 0x00, 0x00,
0x01, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
};
const unsigned char SET_LED_DATA[] = {
0x09, 0x91, 0x00, 0x07, 0x00, 0x08, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
unsigned char flash_read_command[] = {
0x02, 0x91, 0x00, 0x01, 0x00, 0x08, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x01, 0x00
@@ -316,12 +349,6 @@ static bool HIDAPI_DriverSwitch2_InitUSB(SDL_HIDAPI_Device *device)
}
RecvBulkData(ctx, calibration_data, 0x40);
res = SendBulkData(ctx, SET_LED_DATA, sizeof(SET_LED_DATA));
if (res < 0) {
return SDL_SetError("Couldn't set LED data: %d\n", res);
}
RecvBulkData(ctx, calibration_data, 0x40);
flash_read_command[12] = 0x80;
res = SendBulkData(ctx, flash_read_command, sizeof(flash_read_command));
if (res < 0) {
@@ -377,6 +404,7 @@ static bool HIDAPI_DriverSwitch2_InitDevice(SDL_HIDAPI_Device *device)
if (!ctx) {
return false;
}
ctx->device = device;
device->context = ctx;
if (device->is_bluetooth) {
@@ -410,12 +438,31 @@ static int HIDAPI_DriverSwitch2_GetDevicePlayerIndex(SDL_HIDAPI_Device *device,
static void HIDAPI_DriverSwitch2_SetDevicePlayerIndex(SDL_HIDAPI_Device *device, SDL_JoystickID instance_id, int player_index)
{
SDL_DriverSwitch2_Context *ctx = (SDL_DriverSwitch2_Context *)device->context;
if (!ctx->joystick) {
return;
}
ctx->player_index = player_index;
UpdateSlotLED(ctx);
}
static bool HIDAPI_DriverSwitch2_OpenJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick)
{
SDL_DriverSwitch2_Context *ctx = (SDL_DriverSwitch2_Context *)device->context;
ctx->joystick = joystick;
// Initialize player index (needed for setting LEDs)
ctx->player_index = SDL_GetJoystickPlayerIndex(joystick);
ctx->player_lights = SDL_GetHintBoolean(SDL_HINT_JOYSTICK_HIDAPI_SWITCH_PLAYER_LED, true);
UpdateSlotLED(ctx);
SDL_AddHintCallback(SDL_HINT_JOYSTICK_HIDAPI_SWITCH_PLAYER_LED,
SDL_PlayerLEDHintChanged, ctx);
// Initialize the joystick capabilities
switch (device->product_id) {
case USB_PRODUCT_NINTENDO_SWITCH2_GAMECUBE_CONTROLLER:
@@ -453,7 +500,13 @@ static bool HIDAPI_DriverSwitch2_RumbleJoystickTriggers(SDL_HIDAPI_Device *devic
static Uint32 HIDAPI_DriverSwitch2_GetJoystickCapabilities(SDL_HIDAPI_Device *device, SDL_Joystick *joystick)
{
return 0;
SDL_DriverSwitch2_Context *ctx = (SDL_DriverSwitch2_Context *)device->context;
Uint32 result = 0;
if (ctx->player_lights) {
result |= SDL_JOYSTICK_CAP_PLAYER_LED;
}
return result;
}
static bool HIDAPI_DriverSwitch2_SetJoystickLED(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint8 red, Uint8 green, Uint8 blue)
@@ -886,6 +939,12 @@ static bool HIDAPI_DriverSwitch2_UpdateDevice(SDL_HIDAPI_Device *device)
static void HIDAPI_DriverSwitch2_CloseJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick)
{
SDL_DriverSwitch2_Context *ctx = (SDL_DriverSwitch2_Context *)device->context;
SDL_RemoveHintCallback(SDL_HINT_JOYSTICK_HIDAPI_SWITCH_PLAYER_LED,
SDL_PlayerLEDHintChanged, ctx);
ctx->joystick = NULL;
}
static void HIDAPI_DriverSwitch2_FreeDevice(SDL_HIDAPI_Device *device)