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Fix Steam Controller 2026 (triton) rumble (#15558)

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This commit is contained in:
Vlad-Florin Ilie
2026-05-14 09:40:55 +03:00
committed by GitHub
parent a400a70484
commit b333c04ccc
1 changed files with 25 additions and 4 deletions
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src/joystick/hidapi/SDL_hidapi_steam_triton.c
+25 -4
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@@ -35,6 +35,9 @@
// Always 1kHz according to USB descriptor, but actually about 4 ms.
#define TRITON_SENSOR_UPDATE_INTERVAL_US 4032
// Steam Controller hardware safety timeout is around 50ms, so we resend rumble every 40ms
#define TRITON_RUMBLE_RESEND_INTERVAL_MS 40
enum
{
SDL_GAMEPAD_BUTTON_STEAM_DECK_QAM = 11,
@@ -96,6 +99,9 @@ typedef struct
Uint64 sensor_timestamp_ns;
Uint64 last_button_state;
Uint64 last_lizard_update;
Uint16 low_frequency_rumble;
Uint16 high_frequency_rumble;
Uint64 last_rumble_time;
} SDL_DriverSteamTriton_Context;
static bool IsProteusDongle(Uint16 product_id)
@@ -354,6 +360,8 @@ static void HIDAPI_DriverSteamTriton_SetDevicePlayerIndex(SDL_HIDAPI_Device *dev
{
}
static bool HIDAPI_DriverSteamTriton_RumbleJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble);
static bool HIDAPI_DriverSteamTriton_UpdateDevice(SDL_HIDAPI_Device *device)
{
SDL_DriverSteamTriton_Context *ctx = (SDL_DriverSteamTriton_Context *)device->context;
@@ -369,6 +377,12 @@ static bool HIDAPI_DriverSteamTriton_UpdateDevice(SDL_HIDAPI_Device *device)
DisableSteamTritonLizardMode(device->dev);
ctx->last_lizard_update = now;
}
if (ctx->low_frequency_rumble || ctx->high_frequency_rumble) {
if ((now - ctx->last_rumble_time) >= TRITON_RUMBLE_RESEND_INTERVAL_MS) {
HIDAPI_DriverSteamTriton_RumbleJoystick(device, joystick, ctx->low_frequency_rumble, ctx->high_frequency_rumble);
}
}
}
for (;;) {
@@ -436,10 +450,14 @@ static bool HIDAPI_DriverSteamTriton_OpenJoystick(SDL_HIDAPI_Device *device, SDL
static bool HIDAPI_DriverSteamTriton_RumbleJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble)
{
SDL_DriverSteamTriton_Context *ctx = (SDL_DriverSteamTriton_Context *)device->context;
int rc;
//RKRK Not sure about size. Probably 64+1 is OK for ORs
Uint8 buffer[HID_RUMBLE_OUTPUT_REPORT_BYTES];
ctx->low_frequency_rumble = low_frequency_rumble;
ctx->high_frequency_rumble = high_frequency_rumble;
ctx->last_rumble_time = SDL_GetTicks();
Uint8 buffer[HID_RUMBLE_OUTPUT_REPORT_BYTES] = { 0 };
OutputReportMsg *msg = (OutputReportMsg *)(buffer);
msg->report_id = ID_OUT_REPORT_HAPTIC_RUMBLE;
@@ -450,9 +468,12 @@ static bool HIDAPI_DriverSteamTriton_RumbleJoystick(SDL_HIDAPI_Device *device, S
msg->payload.hapticRumble.right.speed = high_frequency_rumble;
msg->payload.hapticRumble.right.gain = 0;
rc = SDL_hid_write(device->dev, buffer, sizeof(buffer));
if (rc != sizeof(buffer)) {
if (rc < 0) {
SDL_LogError(SDL_LOG_CATEGORY_INPUT,
"Steam Controller HID Write FAILED! rc: %d. SDL_Error: %s",
rc, SDL_GetError());
return false;
}
return true;