| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org> |
| |
| 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. |
| */ |
| /* This driver supports both simplified reports and the extended input reports enabled by Steam. |
| Code and logic contributed by Valve Corporation under the SDL zlib license. |
| */ |
| #include "SDL_internal.h" |
| |
| #ifdef SDL_JOYSTICK_HIDAPI |
| |
| #include "../../SDL_hints_c.h" |
| #include "../SDL_sysjoystick.h" |
| #include "SDL_hidapijoystick_c.h" |
| #include "SDL_hidapi_rumble.h" |
| |
| #ifdef SDL_JOYSTICK_HIDAPI_PS4 |
| |
| // Define this if you want to log all packets from the controller |
| #if 0 |
| #define DEBUG_PS4_PROTOCOL |
| #endif |
| |
| // Define this if you want to log calibration data |
| #if 0 |
| #define DEBUG_PS4_CALIBRATION |
| #endif |
| |
| #define BLUETOOTH_DISCONNECT_TIMEOUT_MS 500 |
| |
| enum |
| { |
| SDL_GAMEPAD_BUTTON_PS4_TOUCHPAD = 11 |
| }; |
| |
| typedef enum |
| { |
| k_EPS4ReportIdUsbState = 1, |
| k_EPS4ReportIdUsbEffects = 5, |
| k_EPS4ReportIdBluetoothState1 = 17, |
| k_EPS4ReportIdBluetoothState2 = 18, |
| k_EPS4ReportIdBluetoothState3 = 19, |
| k_EPS4ReportIdBluetoothState4 = 20, |
| k_EPS4ReportIdBluetoothState5 = 21, |
| k_EPS4ReportIdBluetoothState6 = 22, |
| k_EPS4ReportIdBluetoothState7 = 23, |
| k_EPS4ReportIdBluetoothState8 = 24, |
| k_EPS4ReportIdBluetoothState9 = 25, |
| k_EPS4ReportIdBluetoothEffects = 17, |
| k_EPS4ReportIdDisconnectMessage = 226, |
| } EPS4ReportId; |
| |
| typedef enum |
| { |
| k_ePS4FeatureReportIdGyroCalibration_USB = 0x02, |
| k_ePS4FeatureReportIdCapabilities = 0x03, |
| k_ePS4FeatureReportIdGyroCalibration_BT = 0x05, |
| k_ePS4FeatureReportIdSerialNumber = 0x12, |
| } EPS4FeatureReportID; |
| |
| typedef struct |
| { |
| Uint8 ucLeftJoystickX; |
| Uint8 ucLeftJoystickY; |
| Uint8 ucRightJoystickX; |
| Uint8 ucRightJoystickY; |
| Uint8 rgucButtonsHatAndCounter[3]; |
| Uint8 ucTriggerLeft; |
| Uint8 ucTriggerRight; |
| Uint8 rgucTimestamp[2]; |
| Uint8 _rgucPad0[1]; |
| Uint8 rgucGyroX[2]; |
| Uint8 rgucGyroY[2]; |
| Uint8 rgucGyroZ[2]; |
| Uint8 rgucAccelX[2]; |
| Uint8 rgucAccelY[2]; |
| Uint8 rgucAccelZ[2]; |
| Uint8 _rgucPad1[5]; |
| Uint8 ucBatteryLevel; |
| Uint8 _rgucPad2[4]; |
| Uint8 ucTouchpadCounter1; |
| Uint8 rgucTouchpadData1[3]; |
| Uint8 ucTouchpadCounter2; |
| Uint8 rgucTouchpadData2[3]; |
| } PS4StatePacket_t; |
| |
| typedef struct |
| { |
| Uint8 ucRumbleRight; |
| Uint8 ucRumbleLeft; |
| Uint8 ucLedRed; |
| Uint8 ucLedGreen; |
| Uint8 ucLedBlue; |
| Uint8 ucLedDelayOn; |
| Uint8 ucLedDelayOff; |
| Uint8 _rgucPad0[8]; |
| Uint8 ucVolumeLeft; |
| Uint8 ucVolumeRight; |
| Uint8 ucVolumeMic; |
| Uint8 ucVolumeSpeaker; |
| } DS4EffectsState_t; |
| |
| typedef struct |
| { |
| Sint16 bias; |
| float scale; |
| } IMUCalibrationData; |
| |
| /* Rumble hint mode: |
| * "0": enhanced features are never used |
| * "1": enhanced features are always used |
| * "auto": enhanced features are advertised to the application, but SDL doesn't touch the controller state unless the application explicitly requests it. |
| */ |
| typedef enum |
| { |
| PS4_ENHANCED_REPORT_HINT_OFF, |
| PS4_ENHANCED_REPORT_HINT_ON, |
| PS4_ENHANCED_REPORT_HINT_AUTO |
| } HIDAPI_PS4_EnhancedReportHint; |
| |
| typedef struct |
| { |
| SDL_HIDAPI_Device *device; |
| SDL_Joystick *joystick; |
| bool is_dongle; |
| bool is_nacon_dongle; |
| bool official_controller; |
| bool sensors_supported; |
| bool lightbar_supported; |
| bool vibration_supported; |
| bool touchpad_supported; |
| bool effects_supported; |
| HIDAPI_PS4_EnhancedReportHint enhanced_report_hint; |
| bool enhanced_reports; |
| bool enhanced_mode; |
| bool enhanced_mode_available; |
| Uint8 report_interval; |
| bool report_sensors; |
| bool report_touchpad; |
| bool report_battery; |
| bool hardware_calibration; |
| IMUCalibrationData calibration[6]; |
| Uint64 last_packet; |
| int player_index; |
| Uint8 rumble_left; |
| Uint8 rumble_right; |
| bool color_set; |
| Uint8 led_red; |
| Uint8 led_green; |
| Uint8 led_blue; |
| Uint16 gyro_numerator; |
| Uint16 gyro_denominator; |
| Uint16 accel_numerator; |
| Uint16 accel_denominator; |
| Uint64 sensor_ticks; |
| Uint16 last_tick; |
| Uint16 valid_crc_packets; // wrapping counter |
| PS4StatePacket_t last_state; |
| } SDL_DriverPS4_Context; |
| |
| static bool HIDAPI_DriverPS4_InternalSendJoystickEffect(SDL_DriverPS4_Context *ctx, const void *effect, int size, bool application_usage); |
| |
| static void HIDAPI_DriverPS4_RegisterHints(SDL_HintCallback callback, void *userdata) |
| { |
| SDL_AddHintCallback(SDL_HINT_JOYSTICK_HIDAPI_PS4, callback, userdata); |
| } |
| |
| static void HIDAPI_DriverPS4_UnregisterHints(SDL_HintCallback callback, void *userdata) |
| { |
| SDL_RemoveHintCallback(SDL_HINT_JOYSTICK_HIDAPI_PS4, callback, userdata); |
| } |
| |
| static bool HIDAPI_DriverPS4_IsEnabled(void) |
| { |
| return SDL_GetHintBoolean(SDL_HINT_JOYSTICK_HIDAPI_PS4, SDL_GetHintBoolean(SDL_HINT_JOYSTICK_HIDAPI, SDL_HIDAPI_DEFAULT)); |
| } |
| |
| static int ReadFeatureReport(SDL_hid_device *dev, Uint8 report_id, Uint8 *report, size_t length) |
| { |
| SDL_memset(report, 0, length); |
| report[0] = report_id; |
| return SDL_hid_get_feature_report(dev, report, length); |
| } |
| |
| static bool HIDAPI_DriverPS4_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) |
| { |
| Uint8 data[USB_PACKET_LENGTH]; |
| int size; |
| |
| if (type == SDL_GAMEPAD_TYPE_PS4) { |
| return true; |
| } |
| |
| if (HIDAPI_SupportsPlaystationDetection(vendor_id, product_id)) { |
| if (device && device->dev) { |
| size = ReadFeatureReport(device->dev, k_ePS4FeatureReportIdCapabilities, data, sizeof(data)); |
| if (size == 48 && data[2] == 0x27) { |
| // Supported third party controller |
| return true; |
| } else { |
| return false; |
| } |
| } else { |
| // Might be supported by this driver, enumerate and find out |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| static void SetLedsForPlayerIndex(DS4EffectsState_t *effects, int player_index) |
| { |
| /* This list is the same as what hid-sony.c uses in the Linux kernel. |
| The first 4 values correspond to what the PS4 assigns. |
| */ |
| static const Uint8 colors[7][3] = { |
| { 0x00, 0x00, 0x40 }, // Blue |
| { 0x40, 0x00, 0x00 }, // Red |
| { 0x00, 0x40, 0x00 }, // Green |
| { 0x20, 0x00, 0x20 }, // Pink |
| { 0x02, 0x01, 0x00 }, // Orange |
| { 0x00, 0x01, 0x01 }, // Teal |
| { 0x01, 0x01, 0x01 } // White |
| }; |
| |
| if (player_index >= 0) { |
| player_index %= SDL_arraysize(colors); |
| } else { |
| player_index = 0; |
| } |
| |
| effects->ucLedRed = colors[player_index][0]; |
| effects->ucLedGreen = colors[player_index][1]; |
| effects->ucLedBlue = colors[player_index][2]; |
| } |
| |
| static bool ReadWiredSerial(SDL_HIDAPI_Device *device, char *serial, size_t serial_size) |
| { |
| Uint8 data[USB_PACKET_LENGTH]; |
| int size; |
| |
| size = ReadFeatureReport(device->dev, k_ePS4FeatureReportIdSerialNumber, data, sizeof(data)); |
| if (size >= 7 && (data[1] || data[2] || data[3] || data[4] || data[5] || data[6])) { |
| (void)SDL_snprintf(serial, serial_size, "%.2x-%.2x-%.2x-%.2x-%.2x-%.2x", |
| data[6], data[5], data[4], data[3], data[2], data[1]); |
| return true; |
| } |
| return false; |
| } |
| |
| static bool HIDAPI_DriverPS4_InitDevice(SDL_HIDAPI_Device *device) |
| { |
| SDL_DriverPS4_Context *ctx; |
| Uint8 data[USB_PACKET_LENGTH]; |
| int size; |
| char serial[18]; |
| SDL_JoystickType joystick_type = SDL_JOYSTICK_TYPE_GAMEPAD; |
| |
| ctx = (SDL_DriverPS4_Context *)SDL_calloc(1, sizeof(*ctx)); |
| if (!ctx) { |
| return false; |
| } |
| ctx->device = device; |
| |
| ctx->gyro_numerator = 1; |
| ctx->gyro_denominator = 16; |
| ctx->accel_numerator = 1; |
| ctx->accel_denominator = 8192; |
| |
| device->context = ctx; |
| |
| if (device->serial && SDL_strlen(device->serial) == 12) { |
| int i, j; |
| |
| j = -1; |
| for (i = 0; i < 12; i += 2) { |
| j += 1; |
| SDL_memmove(&serial[j], &device->serial[i], 2); |
| j += 2; |
| serial[j] = '-'; |
| } |
| serial[j] = '\0'; |
| } else { |
| serial[0] = '\0'; |
| } |
| |
| // Check for type of connection |
| ctx->is_dongle = (device->vendor_id == USB_VENDOR_SONY && device->product_id == USB_PRODUCT_SONY_DS4_DONGLE); |
| if (ctx->is_dongle) { |
| ReadWiredSerial(device, serial, sizeof(serial)); |
| ctx->enhanced_reports = true; |
| } else if (device->vendor_id == USB_VENDOR_SONY && device->product_id == USB_PRODUCT_SONY_DS4_STRIKEPAD) { |
| ctx->enhanced_reports = true; |
| |
| } else if (device->vendor_id == USB_VENDOR_SONY) { |
| if (device->is_bluetooth) { |
| // Read a report to see if we're in enhanced mode |
| size = SDL_hid_read_timeout(device->dev, data, sizeof(data), 16); |
| #ifdef DEBUG_PS4_PROTOCOL |
| if (size > 0) { |
| HIDAPI_DumpPacket("PS4 first packet: size = %d", data, size); |
| } else { |
| SDL_Log("PS4 first packet: size = %d", size); |
| } |
| #endif |
| if (size > 0 && |
| data[0] >= k_EPS4ReportIdBluetoothState1 && |
| data[0] <= k_EPS4ReportIdBluetoothState9) { |
| ctx->enhanced_reports = true; |
| } |
| } else { |
| ReadWiredSerial(device, serial, sizeof(serial)); |
| ctx->enhanced_reports = true; |
| } |
| } else { |
| // Third party controllers appear to all be wired |
| ctx->enhanced_reports = true; |
| } |
| |
| if (device->vendor_id == USB_VENDOR_SONY) { |
| ctx->official_controller = true; |
| ctx->sensors_supported = true; |
| ctx->lightbar_supported = true; |
| ctx->vibration_supported = true; |
| ctx->touchpad_supported = true; |
| } else { |
| // Third party controller capability request |
| size = ReadFeatureReport(device->dev, k_ePS4FeatureReportIdCapabilities, data, sizeof(data)); |
| // Get the device capabilities |
| if (size == 48 && data[2] == 0x27) { |
| Uint8 capabilities = data[4]; |
| Uint8 device_type = data[5]; |
| Uint16 gyro_numerator = LOAD16(data[10], data[11]); |
| Uint16 gyro_denominator = LOAD16(data[12], data[13]); |
| Uint16 accel_numerator = LOAD16(data[14], data[15]); |
| Uint16 accel_denominator = LOAD16(data[16], data[17]); |
| |
| #ifdef DEBUG_PS4_PROTOCOL |
| HIDAPI_DumpPacket("PS4 capabilities: size = %d", data, size); |
| #endif |
| if (capabilities & 0x02) { |
| ctx->sensors_supported = true; |
| } |
| if (capabilities & 0x04) { |
| ctx->lightbar_supported = true; |
| } |
| if (capabilities & 0x08) { |
| ctx->vibration_supported = true; |
| } |
| if (capabilities & 0x40) { |
| ctx->touchpad_supported = true; |
| } |
| |
| switch (device_type) { |
| case 0x00: |
| joystick_type = SDL_JOYSTICK_TYPE_GAMEPAD; |
| break; |
| case 0x01: |
| joystick_type = SDL_JOYSTICK_TYPE_GUITAR; |
| break; |
| case 0x02: |
| joystick_type = SDL_JOYSTICK_TYPE_DRUM_KIT; |
| break; |
| case 0x04: |
| joystick_type = SDL_JOYSTICK_TYPE_DANCE_PAD; |
| break; |
| case 0x06: |
| joystick_type = SDL_JOYSTICK_TYPE_WHEEL; |
| break; |
| case 0x07: |
| joystick_type = SDL_JOYSTICK_TYPE_ARCADE_STICK; |
| break; |
| case 0x08: |
| joystick_type = SDL_JOYSTICK_TYPE_FLIGHT_STICK; |
| break; |
| default: |
| joystick_type = SDL_JOYSTICK_TYPE_UNKNOWN; |
| break; |
| } |
| |
| if (gyro_numerator && gyro_denominator) { |
| ctx->gyro_numerator = gyro_numerator; |
| ctx->gyro_denominator = gyro_denominator; |
| } |
| if (accel_numerator && accel_denominator) { |
| ctx->accel_numerator = accel_numerator; |
| ctx->accel_denominator = accel_denominator; |
| } |
| } else if (device->vendor_id == USB_VENDOR_RAZER) { |
| // The Razer Raiju doesn't respond to the detection protocol, but has a touchpad and vibration |
| ctx->vibration_supported = true; |
| ctx->touchpad_supported = true; |
| } |
| } |
| ctx->effects_supported = (ctx->lightbar_supported || ctx->vibration_supported); |
| |
| if (device->vendor_id == USB_VENDOR_NACON_ALT && |
| device->product_id == USB_PRODUCT_NACON_REVOLUTION_5_PRO_PS4_WIRELESS) { |
| ctx->is_nacon_dongle = true; |
| } |
| |
| if (device->vendor_id == USB_VENDOR_PDP && |
| (device->product_id == USB_PRODUCT_VICTRIX_FS_PRO || |
| device->product_id == USB_PRODUCT_VICTRIX_FS_PRO_V2)) { |
| /* The Victrix FS Pro V2 reports that it has lightbar support, |
| * but it doesn't respond to the effects packet, and will hang |
| * on reboot if we send it. |
| */ |
| ctx->effects_supported = false; |
| } |
| |
| device->joystick_type = joystick_type; |
| device->type = SDL_GAMEPAD_TYPE_PS4; |
| if (ctx->official_controller) { |
| HIDAPI_SetDeviceName(device, "PS4 Controller"); |
| } |
| HIDAPI_SetDeviceSerial(device, serial); |
| |
| // Prefer the USB device over the Bluetooth device |
| if (device->is_bluetooth) { |
| if (HIDAPI_HasConnectedUSBDevice(device->serial)) { |
| return true; |
| } |
| } else { |
| HIDAPI_DisconnectBluetoothDevice(device->serial); |
| } |
| if ((ctx->is_dongle || ctx->is_nacon_dongle) && serial[0] == '\0') { |
| // Not yet connected |
| return true; |
| } |
| return HIDAPI_JoystickConnected(device, NULL); |
| } |
| |
| static int HIDAPI_DriverPS4_GetDevicePlayerIndex(SDL_HIDAPI_Device *device, SDL_JoystickID instance_id) |
| { |
| return -1; |
| } |
| |
| static bool HIDAPI_DriverPS4_LoadOfficialCalibrationData(SDL_HIDAPI_Device *device) |
| { |
| SDL_DriverPS4_Context *ctx = (SDL_DriverPS4_Context *)device->context; |
| int i, tries, size; |
| bool have_data = false; |
| Uint8 data[USB_PACKET_LENGTH]; |
| |
| if (!ctx->official_controller) { |
| #ifdef DEBUG_PS4_CALIBRATION |
| SDL_Log("Not an official controller, ignoring calibration"); |
| #endif |
| return false; |
| } |
| |
| for (tries = 0; tries < 5; ++tries) { |
| // For Bluetooth controllers, this report switches them into advanced report mode |
| size = ReadFeatureReport(device->dev, k_ePS4FeatureReportIdGyroCalibration_USB, data, sizeof(data)); |
| if (size < 35) { |
| #ifdef DEBUG_PS4_CALIBRATION |
| SDL_Log("Short read of calibration data: %d, ignoring calibration", size); |
| #endif |
| return false; |
| } |
| |
| if (device->is_bluetooth) { |
| size = ReadFeatureReport(device->dev, k_ePS4FeatureReportIdGyroCalibration_BT, data, sizeof(data)); |
| if (size < 35) { |
| #ifdef DEBUG_PS4_CALIBRATION |
| SDL_Log("Short read of calibration data: %d, ignoring calibration", size); |
| #endif |
| return false; |
| } |
| } |
| |
| // In some cases this report returns all zeros. Usually immediately after connection with the PS4 Dongle |
| for (i = 0; i < size; ++i) { |
| if (data[i]) { |
| have_data = true; |
| break; |
| } |
| } |
| if (have_data) { |
| break; |
| } |
| |
| SDL_Delay(2); |
| } |
| |
| if (have_data) { |
| Sint16 sGyroPitchBias, sGyroYawBias, sGyroRollBias; |
| Sint16 sGyroPitchPlus, sGyroPitchMinus; |
| Sint16 sGyroYawPlus, sGyroYawMinus; |
| Sint16 sGyroRollPlus, sGyroRollMinus; |
| Sint16 sGyroSpeedPlus, sGyroSpeedMinus; |
| |
| Sint16 sAccXPlus, sAccXMinus; |
| Sint16 sAccYPlus, sAccYMinus; |
| Sint16 sAccZPlus, sAccZMinus; |
| |
| float flNumerator; |
| float flDenominator; |
| Sint16 sRange2g; |
| |
| #ifdef DEBUG_PS4_CALIBRATION |
| HIDAPI_DumpPacket("PS4 calibration packet: size = %d", data, size); |
| #endif |
| |
| sGyroPitchBias = LOAD16(data[1], data[2]); |
| sGyroYawBias = LOAD16(data[3], data[4]); |
| sGyroRollBias = LOAD16(data[5], data[6]); |
| |
| if (device->is_bluetooth || ctx->is_dongle) { |
| sGyroPitchPlus = LOAD16(data[7], data[8]); |
| sGyroYawPlus = LOAD16(data[9], data[10]); |
| sGyroRollPlus = LOAD16(data[11], data[12]); |
| sGyroPitchMinus = LOAD16(data[13], data[14]); |
| sGyroYawMinus = LOAD16(data[15], data[16]); |
| sGyroRollMinus = LOAD16(data[17], data[18]); |
| } else { |
| sGyroPitchPlus = LOAD16(data[7], data[8]); |
| sGyroPitchMinus = LOAD16(data[9], data[10]); |
| sGyroYawPlus = LOAD16(data[11], data[12]); |
| sGyroYawMinus = LOAD16(data[13], data[14]); |
| sGyroRollPlus = LOAD16(data[15], data[16]); |
| sGyroRollMinus = LOAD16(data[17], data[18]); |
| } |
| |
| sGyroSpeedPlus = LOAD16(data[19], data[20]); |
| sGyroSpeedMinus = LOAD16(data[21], data[22]); |
| |
| sAccXPlus = LOAD16(data[23], data[24]); |
| sAccXMinus = LOAD16(data[25], data[26]); |
| sAccYPlus = LOAD16(data[27], data[28]); |
| sAccYMinus = LOAD16(data[29], data[30]); |
| sAccZPlus = LOAD16(data[31], data[32]); |
| sAccZMinus = LOAD16(data[33], data[34]); |
| |
| flNumerator = (float)(sGyroSpeedPlus + sGyroSpeedMinus) * ctx->gyro_denominator / ctx->gyro_numerator; |
| flDenominator = (float)(SDL_abs(sGyroPitchPlus - sGyroPitchBias) + SDL_abs(sGyroPitchMinus - sGyroPitchBias)); |
| if (flDenominator != 0.0f) { |
| ctx->calibration[0].bias = sGyroPitchBias; |
| ctx->calibration[0].scale = flNumerator / flDenominator; |
| } |
| |
| flDenominator = (float)(SDL_abs(sGyroYawPlus - sGyroYawBias) + SDL_abs(sGyroYawMinus - sGyroYawBias)); |
| if (flDenominator != 0.0f) { |
| ctx->calibration[1].bias = sGyroYawBias; |
| ctx->calibration[1].scale = flNumerator / flDenominator; |
| } |
| |
| flDenominator = (float)(SDL_abs(sGyroRollPlus - sGyroRollBias) + SDL_abs(sGyroRollMinus - sGyroRollBias)); |
| if (flDenominator != 0.0f) { |
| ctx->calibration[2].bias = sGyroRollBias; |
| ctx->calibration[2].scale = flNumerator / flDenominator; |
| } |
| |
| sRange2g = sAccXPlus - sAccXMinus; |
| ctx->calibration[3].bias = sAccXPlus - sRange2g / 2; |
| ctx->calibration[3].scale = (2.0f * ctx->accel_denominator / ctx->accel_numerator) / sRange2g; |
| |
| sRange2g = sAccYPlus - sAccYMinus; |
| ctx->calibration[4].bias = sAccYPlus - sRange2g / 2; |
| ctx->calibration[4].scale = (2.0f * ctx->accel_denominator / ctx->accel_numerator) / sRange2g; |
| |
| sRange2g = sAccZPlus - sAccZMinus; |
| ctx->calibration[5].bias = sAccZPlus - sRange2g / 2; |
| ctx->calibration[5].scale = (2.0f * ctx->accel_denominator / ctx->accel_numerator) / sRange2g; |
| |
| ctx->hardware_calibration = true; |
| for (i = 0; i < 6; ++i) { |
| #ifdef DEBUG_PS4_CALIBRATION |
| SDL_Log("calibration[%d] bias = %d, sensitivity = %f", i, ctx->calibration[i].bias, ctx->calibration[i].scale); |
| #endif |
| // Some controllers have a bad calibration |
| if (SDL_abs(ctx->calibration[i].bias) > 1024 || SDL_fabsf(1.0f - ctx->calibration[i].scale) > 0.5f) { |
| #ifdef DEBUG_PS4_CALIBRATION |
| SDL_Log("invalid calibration, ignoring"); |
| #endif |
| ctx->hardware_calibration = false; |
| } |
| } |
| } else { |
| #ifdef DEBUG_PS4_CALIBRATION |
| SDL_Log("Calibration data not available"); |
| #endif |
| } |
| return ctx->hardware_calibration; |
| } |
| |
| static void HIDAPI_DriverPS4_LoadCalibrationData(SDL_HIDAPI_Device *device) |
| { |
| SDL_DriverPS4_Context *ctx = (SDL_DriverPS4_Context *)device->context; |
| int i; |
| |
| if (!HIDAPI_DriverPS4_LoadOfficialCalibrationData(device)) { |
| for (i = 0; i < SDL_arraysize(ctx->calibration); ++i) { |
| ctx->calibration[i].bias = 0; |
| ctx->calibration[i].scale = 1.0f; |
| } |
| } |
| |
| // Scale the raw data to the units expected by SDL |
| for (i = 0; i < SDL_arraysize(ctx->calibration); ++i) { |
| double scale = ctx->calibration[i].scale; |
| |
| if (i < 3) { |
| scale *= ((double)ctx->gyro_numerator / ctx->gyro_denominator) * SDL_PI_D / 180.0; |
| |
| if (device->vendor_id == USB_VENDOR_SONY && |
| device->product_id == USB_PRODUCT_SONY_DS4_STRIKEPAD) { |
| // The Armor-X Pro seems to only deliver half the rotation it should |
| scale *= 2.0; |
| } |
| } else { |
| scale *= ((double)ctx->accel_numerator / ctx->accel_denominator) * SDL_STANDARD_GRAVITY; |
| |
| if (device->vendor_id == USB_VENDOR_SONY && |
| device->product_id == USB_PRODUCT_SONY_DS4_STRIKEPAD) { |
| /* The Armor-X Pro seems to only deliver half the acceleration it should, |
| * and in the opposite direction on all axes */ |
| scale *= -2.0; |
| } |
| } |
| ctx->calibration[i].scale = (float)scale; |
| } |
| } |
| |
| static float HIDAPI_DriverPS4_ApplyCalibrationData(SDL_DriverPS4_Context *ctx, int index, Sint16 value) |
| { |
| IMUCalibrationData *calibration = &ctx->calibration[index]; |
| |
| return ((float)value - calibration->bias) * calibration->scale; |
| } |
| |
| static bool HIDAPI_DriverPS4_UpdateEffects(SDL_DriverPS4_Context *ctx, bool application_usage) |
| { |
| DS4EffectsState_t effects; |
| |
| SDL_zero(effects); |
| |
| if (ctx->vibration_supported) { |
| effects.ucRumbleLeft = ctx->rumble_left; |
| effects.ucRumbleRight = ctx->rumble_right; |
| } |
| |
| if (ctx->lightbar_supported) { |
| // Populate the LED state with the appropriate color from our lookup table |
| if (ctx->color_set) { |
| effects.ucLedRed = ctx->led_red; |
| effects.ucLedGreen = ctx->led_green; |
| effects.ucLedBlue = ctx->led_blue; |
| } else { |
| SetLedsForPlayerIndex(&effects, ctx->player_index); |
| } |
| } |
| return HIDAPI_DriverPS4_InternalSendJoystickEffect(ctx, &effects, sizeof(effects), application_usage); |
| } |
| |
| static void HIDAPI_DriverPS4_TickleBluetooth(SDL_HIDAPI_Device *device) |
| { |
| SDL_DriverPS4_Context *ctx = (SDL_DriverPS4_Context *)device->context; |
| |
| if (ctx->enhanced_reports) { |
| // This is just a dummy packet that should have no effect, since we don't set the CRC |
| Uint8 data[78]; |
| |
| SDL_zeroa(data); |
| |
| data[0] = k_EPS4ReportIdBluetoothEffects; |
| data[1] = 0xC0; // Magic value HID + CRC |
| |
| if (SDL_HIDAPI_LockRumble()) { |
| SDL_HIDAPI_SendRumbleAndUnlock(device, data, sizeof(data)); |
| } |
| } else { |
| #if 0 /* The 8BitDo Zero 2 has perfect emulation of a PS4 controller, except it |
| * only sends reports when the state changes, so we can't disconnect here. |
| */ |
| // We can't even send an invalid effects packet, or it will put the controller in enhanced mode |
| if (device->num_joysticks > 0) { |
| HIDAPI_JoystickDisconnected(device, device->joysticks[0]); |
| } |
| #endif |
| } |
| } |
| |
| static void HIDAPI_DriverPS4_SetEnhancedModeAvailable(SDL_DriverPS4_Context *ctx) |
| { |
| if (ctx->enhanced_mode_available) { |
| return; |
| } |
| ctx->enhanced_mode_available = true; |
| |
| if (ctx->touchpad_supported) { |
| SDL_PrivateJoystickAddTouchpad(ctx->joystick, 2); |
| ctx->report_touchpad = true; |
| } |
| |
| if (ctx->sensors_supported) { |
| SDL_PrivateJoystickAddSensor(ctx->joystick, SDL_SENSOR_GYRO, (float)(1000 / ctx->report_interval)); |
| SDL_PrivateJoystickAddSensor(ctx->joystick, SDL_SENSOR_ACCEL, (float)(1000 / ctx->report_interval)); |
| } |
| |
| if (ctx->official_controller) { |
| ctx->report_battery = true; |
| } |
| |
| HIDAPI_UpdateDeviceProperties(ctx->device); |
| } |
| |
| static void HIDAPI_DriverPS4_SetEnhancedMode(SDL_DriverPS4_Context *ctx) |
| { |
| HIDAPI_DriverPS4_SetEnhancedModeAvailable(ctx); |
| |
| if (!ctx->enhanced_mode) { |
| ctx->enhanced_mode = true; |
| |
| // Switch into enhanced report mode |
| HIDAPI_DriverPS4_UpdateEffects(ctx, false); |
| } |
| } |
| |
| static void HIDAPI_DriverPS4_SetEnhancedReportHint(SDL_DriverPS4_Context *ctx, HIDAPI_PS4_EnhancedReportHint enhanced_report_hint) |
| { |
| switch (enhanced_report_hint) { |
| case PS4_ENHANCED_REPORT_HINT_OFF: |
| // Nothing to do, enhanced mode is a one-way ticket |
| break; |
| case PS4_ENHANCED_REPORT_HINT_ON: |
| HIDAPI_DriverPS4_SetEnhancedMode(ctx); |
| break; |
| case PS4_ENHANCED_REPORT_HINT_AUTO: |
| HIDAPI_DriverPS4_SetEnhancedModeAvailable(ctx); |
| break; |
| } |
| ctx->enhanced_report_hint = enhanced_report_hint; |
| } |
| |
| static void HIDAPI_DriverPS4_UpdateEnhancedModeOnEnhancedReport(SDL_DriverPS4_Context *ctx) |
| { |
| ctx->enhanced_reports = true; |
| |
| if (ctx->enhanced_report_hint == PS4_ENHANCED_REPORT_HINT_AUTO) { |
| HIDAPI_DriverPS4_SetEnhancedReportHint(ctx, PS4_ENHANCED_REPORT_HINT_ON); |
| } |
| } |
| |
| static void HIDAPI_DriverPS4_UpdateEnhancedModeOnApplicationUsage(SDL_DriverPS4_Context *ctx) |
| { |
| if (ctx->enhanced_report_hint == PS4_ENHANCED_REPORT_HINT_AUTO) { |
| HIDAPI_DriverPS4_SetEnhancedReportHint(ctx, PS4_ENHANCED_REPORT_HINT_ON); |
| } |
| } |
| |
| static void SDLCALL SDL_PS4EnhancedReportsChanged(void *userdata, const char *name, const char *oldValue, const char *hint) |
| { |
| SDL_DriverPS4_Context *ctx = (SDL_DriverPS4_Context *)userdata; |
| |
| if (ctx->device->is_bluetooth) { |
| if (hint && SDL_strcasecmp(hint, "auto") == 0) { |
| HIDAPI_DriverPS4_SetEnhancedReportHint(ctx, PS4_ENHANCED_REPORT_HINT_AUTO); |
| } else if (SDL_GetStringBoolean(hint, true)) { |
| HIDAPI_DriverPS4_SetEnhancedReportHint(ctx, PS4_ENHANCED_REPORT_HINT_ON); |
| } else { |
| HIDAPI_DriverPS4_SetEnhancedReportHint(ctx, PS4_ENHANCED_REPORT_HINT_OFF); |
| } |
| } else { |
| HIDAPI_DriverPS4_SetEnhancedReportHint(ctx, PS4_ENHANCED_REPORT_HINT_ON); |
| } |
| } |
| |
| static void SDLCALL SDL_PS4ReportIntervalHintChanged(void *userdata, const char *name, const char *oldValue, const char *hint) |
| { |
| const int DEFAULT_REPORT_INTERVAL = 4; |
| SDL_DriverPS4_Context *ctx = (SDL_DriverPS4_Context *)userdata; |
| int new_report_interval = DEFAULT_REPORT_INTERVAL; |
| |
| if (hint) { |
| int report_interval = SDL_atoi(hint); |
| switch (report_interval) { |
| case 1: |
| case 2: |
| case 4: |
| // Valid values |
| new_report_interval = report_interval; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| if (new_report_interval != ctx->report_interval) { |
| ctx->report_interval = (Uint8)new_report_interval; |
| |
| HIDAPI_DriverPS4_UpdateEffects(ctx, false); |
| SDL_LockJoysticks(); |
| SDL_PrivateJoystickSensorRate(ctx->joystick, SDL_SENSOR_GYRO, (float)(1000 / ctx->report_interval)); |
| SDL_PrivateJoystickSensorRate(ctx->joystick, SDL_SENSOR_ACCEL, (float)(1000 / ctx->report_interval)); |
| SDL_UnlockJoysticks(); |
| } |
| } |
| |
| static void HIDAPI_DriverPS4_SetDevicePlayerIndex(SDL_HIDAPI_Device *device, SDL_JoystickID instance_id, int player_index) |
| { |
| SDL_DriverPS4_Context *ctx = (SDL_DriverPS4_Context *)device->context; |
| |
| if (!ctx->joystick) { |
| return; |
| } |
| |
| ctx->player_index = player_index; |
| |
| // This will set the new LED state based on the new player index |
| // SDL automatically calls this, so it doesn't count as an application action to enable enhanced mode |
| HIDAPI_DriverPS4_UpdateEffects(ctx, false); |
| } |
| |
| static bool HIDAPI_DriverPS4_OpenJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick) |
| { |
| SDL_DriverPS4_Context *ctx = (SDL_DriverPS4_Context *)device->context; |
| |
| SDL_AssertJoysticksLocked(); |
| |
| ctx->joystick = joystick; |
| ctx->last_packet = SDL_GetTicks(); |
| ctx->report_sensors = false; |
| ctx->report_touchpad = false; |
| ctx->rumble_left = 0; |
| ctx->rumble_right = 0; |
| ctx->color_set = false; |
| SDL_zero(ctx->last_state); |
| |
| // Initialize player index (needed for setting LEDs) |
| ctx->player_index = SDL_GetJoystickPlayerIndex(joystick); |
| |
| // Initialize the joystick capabilities |
| joystick->nbuttons = 11; |
| if (ctx->touchpad_supported) { |
| joystick->nbuttons += 1; |
| } |
| joystick->naxes = SDL_GAMEPAD_AXIS_COUNT; |
| joystick->nhats = 1; |
| |
| SDL_AddHintCallback(SDL_HINT_JOYSTICK_HIDAPI_PS4_REPORT_INTERVAL, |
| SDL_PS4ReportIntervalHintChanged, ctx); |
| SDL_AddHintCallback(SDL_HINT_JOYSTICK_ENHANCED_REPORTS, |
| SDL_PS4EnhancedReportsChanged, ctx); |
| return true; |
| } |
| |
| static bool HIDAPI_DriverPS4_RumbleJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble) |
| { |
| SDL_DriverPS4_Context *ctx = (SDL_DriverPS4_Context *)device->context; |
| |
| if (!ctx->vibration_supported) { |
| return SDL_Unsupported(); |
| } |
| |
| ctx->rumble_left = (low_frequency_rumble >> 8); |
| ctx->rumble_right = (high_frequency_rumble >> 8); |
| |
| return HIDAPI_DriverPS4_UpdateEffects(ctx, true); |
| } |
| |
| static bool HIDAPI_DriverPS4_RumbleJoystickTriggers(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint16 left_rumble, Uint16 right_rumble) |
| { |
| return SDL_Unsupported(); |
| } |
| |
| static Uint32 HIDAPI_DriverPS4_GetJoystickCapabilities(SDL_HIDAPI_Device *device, SDL_Joystick *joystick) |
| { |
| SDL_DriverPS4_Context *ctx = (SDL_DriverPS4_Context *)device->context; |
| Uint32 result = 0; |
| |
| if (ctx->enhanced_mode_available) { |
| if (ctx->lightbar_supported) { |
| result |= SDL_JOYSTICK_CAP_RGB_LED; |
| } |
| if (ctx->vibration_supported) { |
| result |= SDL_JOYSTICK_CAP_RUMBLE; |
| } |
| } |
| |
| return result; |
| } |
| |
| static bool HIDAPI_DriverPS4_SetJoystickLED(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, Uint8 red, Uint8 green, Uint8 blue) |
| { |
| SDL_DriverPS4_Context *ctx = (SDL_DriverPS4_Context *)device->context; |
| |
| if (!ctx->lightbar_supported) { |
| return SDL_Unsupported(); |
| } |
| |
| ctx->color_set = true; |
| ctx->led_red = red; |
| ctx->led_green = green; |
| ctx->led_blue = blue; |
| |
| return HIDAPI_DriverPS4_UpdateEffects(ctx, true); |
| } |
| |
| static bool HIDAPI_DriverPS4_InternalSendJoystickEffect(SDL_DriverPS4_Context *ctx, const void *effect, int size, bool application_usage) |
| { |
| Uint8 data[78]; |
| int report_size, offset; |
| |
| if (!ctx->effects_supported) { |
| // We shouldn't be sending packets to this controller |
| return SDL_Unsupported(); |
| } |
| |
| if (!ctx->enhanced_mode) { |
| if (application_usage) { |
| HIDAPI_DriverPS4_UpdateEnhancedModeOnApplicationUsage(ctx); |
| } |
| |
| if (!ctx->enhanced_mode) { |
| // We're not in enhanced mode, effects aren't allowed |
| return SDL_Unsupported(); |
| } |
| } |
| |
| SDL_zeroa(data); |
| |
| if (ctx->device->is_bluetooth && ctx->official_controller) { |
| data[0] = k_EPS4ReportIdBluetoothEffects; |
| data[1] = 0xC0 | ctx->report_interval; // Magic value HID + CRC, also sets update interval |
| data[3] = 0x03; // 0x1 is rumble, 0x2 is lightbar, 0x4 is the blink interval |
| |
| report_size = 78; |
| offset = 6; |
| } else { |
| data[0] = k_EPS4ReportIdUsbEffects; |
| data[1] = 0x07; // Magic value |
| |
| report_size = 32; |
| offset = 4; |
| } |
| |
| SDL_memcpy(&data[offset], effect, SDL_min((sizeof(data) - offset), (size_t)size)); |
| |
| if (ctx->device->is_bluetooth) { |
| // Bluetooth reports need a CRC at the end of the packet (at least on Linux) |
| Uint8 ubHdr = 0xA2; // hidp header is part of the CRC calculation |
| Uint32 unCRC; |
| unCRC = SDL_crc32(0, &ubHdr, 1); |
| unCRC = SDL_crc32(unCRC, data, (size_t)(report_size - sizeof(unCRC))); |
| SDL_memcpy(&data[report_size - sizeof(unCRC)], &unCRC, sizeof(unCRC)); |
| } |
| |
| if (SDL_HIDAPI_SendRumble(ctx->device, data, report_size) != report_size) { |
| return SDL_SetError("Couldn't send rumble packet"); |
| } |
| return true; |
| } |
| |
| static bool HIDAPI_DriverPS4_SendJoystickEffect(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, const void *effect, int size) |
| { |
| SDL_DriverPS4_Context *ctx = (SDL_DriverPS4_Context *)device->context; |
| |
| return HIDAPI_DriverPS4_InternalSendJoystickEffect(ctx, effect, size, true); |
| } |
| |
| static bool HIDAPI_DriverPS4_SetJoystickSensorsEnabled(SDL_HIDAPI_Device *device, SDL_Joystick *joystick, bool enabled) |
| { |
| SDL_DriverPS4_Context *ctx = (SDL_DriverPS4_Context *)device->context; |
| |
| HIDAPI_DriverPS4_UpdateEnhancedModeOnApplicationUsage(ctx); |
| |
| if (!ctx->sensors_supported || (enabled && !ctx->enhanced_mode)) { |
| return SDL_Unsupported(); |
| } |
| |
| if (enabled) { |
| HIDAPI_DriverPS4_LoadCalibrationData(device); |
| } |
| ctx->report_sensors = enabled; |
| |
| return true; |
| } |
| |
| static void HIDAPI_DriverPS4_HandleStatePacket(SDL_Joystick *joystick, SDL_hid_device *dev, SDL_DriverPS4_Context *ctx, PS4StatePacket_t *packet, int size) |
| { |
| static const float TOUCHPAD_SCALEX = 5.20833333e-4f; // 1.0f / 1920 |
| static const float TOUCHPAD_SCALEY = 1.08695652e-3f; // 1.0f / 920 // This is noted as being 944 resolution, but 920 feels better |
| Sint16 axis; |
| bool touchpad_down; |
| int touchpad_x, touchpad_y; |
| Uint64 timestamp = SDL_GetTicksNS(); |
| |
| if (size > 9 && ctx->report_touchpad && ctx->enhanced_reports) { |
| touchpad_down = ((packet->ucTouchpadCounter1 & 0x80) == 0); |
| touchpad_x = packet->rgucTouchpadData1[0] | (((int)packet->rgucTouchpadData1[1] & 0x0F) << 8); |
| touchpad_y = (packet->rgucTouchpadData1[1] >> 4) | ((int)packet->rgucTouchpadData1[2] << 4); |
| SDL_SendJoystickTouchpad(timestamp, joystick, 0, 0, touchpad_down, touchpad_x * TOUCHPAD_SCALEX, touchpad_y * TOUCHPAD_SCALEY, touchpad_down ? 1.0f : 0.0f); |
| |
| touchpad_down = ((packet->ucTouchpadCounter2 & 0x80) == 0); |
| touchpad_x = packet->rgucTouchpadData2[0] | (((int)packet->rgucTouchpadData2[1] & 0x0F) << 8); |
| touchpad_y = (packet->rgucTouchpadData2[1] >> 4) | ((int)packet->rgucTouchpadData2[2] << 4); |
| SDL_SendJoystickTouchpad(timestamp, joystick, 0, 1, touchpad_down, touchpad_x * TOUCHPAD_SCALEX, touchpad_y * TOUCHPAD_SCALEY, touchpad_down ? 1.0f : 0.0f); |
| } |
| |
| if (ctx->last_state.rgucButtonsHatAndCounter[0] != packet->rgucButtonsHatAndCounter[0]) { |
| { |
| Uint8 data = (packet->rgucButtonsHatAndCounter[0] >> 4); |
| |
| SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_WEST, ((data & 0x01) != 0)); |
| SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_SOUTH, ((data & 0x02) != 0)); |
| SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_EAST, ((data & 0x04) != 0)); |
| SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_NORTH, ((data & 0x08) != 0)); |
| } |
| { |
| Uint8 hat; |
| Uint8 data = (packet->rgucButtonsHatAndCounter[0] & 0x0F); |
| |
| switch (data) { |
| 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); |
| } |
| } |
| |
| if (ctx->last_state.rgucButtonsHatAndCounter[1] != packet->rgucButtonsHatAndCounter[1]) { |
| Uint8 data = packet->rgucButtonsHatAndCounter[1]; |
| |
| SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_LEFT_SHOULDER, ((data & 0x01) != 0)); |
| SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER, ((data & 0x02) != 0)); |
| SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_BACK, ((data & 0x10) != 0)); |
| SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_START, ((data & 0x20) != 0)); |
| SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_LEFT_STICK, ((data & 0x40) != 0)); |
| SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_RIGHT_STICK, ((data & 0x80) != 0)); |
| } |
| |
| /* Some fightsticks, ex: Victrix FS Pro will only this these digital trigger bits and not the analog values so this needs to run whenever the |
| trigger is evaluated |
| */ |
| if (packet->rgucButtonsHatAndCounter[1] & 0x0C) { |
| Uint8 data = packet->rgucButtonsHatAndCounter[1]; |
| packet->ucTriggerLeft = (data & 0x04) && packet->ucTriggerLeft == 0 ? 255 : packet->ucTriggerLeft; |
| packet->ucTriggerRight = (data & 0x08) && packet->ucTriggerRight == 0 ? 255 : packet->ucTriggerRight; |
| } |
| |
| if (ctx->last_state.rgucButtonsHatAndCounter[2] != packet->rgucButtonsHatAndCounter[2]) { |
| Uint8 data = (packet->rgucButtonsHatAndCounter[2] & 0x03); |
| |
| SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_GUIDE, ((data & 0x01) != 0)); |
| SDL_SendJoystickButton(timestamp, joystick, SDL_GAMEPAD_BUTTON_PS4_TOUCHPAD, ((data & 0x02) != 0)); |
| } |
| |
| axis = ((int)packet->ucTriggerLeft * 257) - 32768; |
| SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFT_TRIGGER, axis); |
| axis = ((int)packet->ucTriggerRight * 257) - 32768; |
| SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHT_TRIGGER, axis); |
| axis = ((int)packet->ucLeftJoystickX * 257) - 32768; |
| SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFTX, axis); |
| axis = ((int)packet->ucLeftJoystickY * 257) - 32768; |
| SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_LEFTY, axis); |
| axis = ((int)packet->ucRightJoystickX * 257) - 32768; |
| SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHTX, axis); |
| axis = ((int)packet->ucRightJoystickY * 257) - 32768; |
| SDL_SendJoystickAxis(timestamp, joystick, SDL_GAMEPAD_AXIS_RIGHTY, axis); |
| |
| if (size > 9 && ctx->report_battery && ctx->enhanced_reports) { |
| SDL_PowerState state; |
| int percent; |
| Uint8 level = (packet->ucBatteryLevel & 0x0F); |
| |
| if (packet->ucBatteryLevel & 0x10) { |
| if (level <= 10) { |
| state = SDL_POWERSTATE_CHARGING; |
| percent = SDL_min(level * 10 + 5, 100); |
| } else if (level == 11) { |
| state = SDL_POWERSTATE_CHARGED; |
| percent = 100; |
| } else { |
| state = SDL_POWERSTATE_UNKNOWN; |
| percent = 0; |
| } |
| } else { |
| state = SDL_POWERSTATE_ON_BATTERY; |
| percent = SDL_min(level * 10 + 5, 100); |
| } |
| SDL_SendJoystickPowerInfo(joystick, state, percent); |
| } |
| |
| if (size > 9 && ctx->report_sensors) { |
| Uint16 tick; |
| Uint16 delta; |
| Uint64 sensor_timestamp; |
| float data[3]; |
| |
| tick = LOAD16(packet->rgucTimestamp[0], packet->rgucTimestamp[1]); |
| if (ctx->last_tick < tick) { |
| delta = (tick - ctx->last_tick); |
| } else { |
| delta = (SDL_MAX_UINT16 - ctx->last_tick + tick + 1); |
| } |
| ctx->sensor_ticks += delta; |
| ctx->last_tick = tick; |
| |
| // Sensor timestamp is in 5.33us units |
| sensor_timestamp = (ctx->sensor_ticks * SDL_NS_PER_US * 16) / 3; |
| |
| data[0] = HIDAPI_DriverPS4_ApplyCalibrationData(ctx, 0, LOAD16(packet->rgucGyroX[0], packet->rgucGyroX[1])); |
| data[1] = HIDAPI_DriverPS4_ApplyCalibrationData(ctx, 1, LOAD16(packet->rgucGyroY[0], packet->rgucGyroY[1])); |
| data[2] = HIDAPI_DriverPS4_ApplyCalibrationData(ctx, 2, LOAD16(packet->rgucGyroZ[0], packet->rgucGyroZ[1])); |
| SDL_SendJoystickSensor(timestamp, joystick, SDL_SENSOR_GYRO, sensor_timestamp, data, 3); |
| |
| data[0] = HIDAPI_DriverPS4_ApplyCalibrationData(ctx, 3, LOAD16(packet->rgucAccelX[0], packet->rgucAccelX[1])); |
| data[1] = HIDAPI_DriverPS4_ApplyCalibrationData(ctx, 4, LOAD16(packet->rgucAccelY[0], packet->rgucAccelY[1])); |
| data[2] = HIDAPI_DriverPS4_ApplyCalibrationData(ctx, 5, LOAD16(packet->rgucAccelZ[0], packet->rgucAccelZ[1])); |
| SDL_SendJoystickSensor(timestamp, joystick, SDL_SENSOR_ACCEL, sensor_timestamp, data, 3); |
| } |
| |
| SDL_memcpy(&ctx->last_state, packet, sizeof(ctx->last_state)); |
| } |
| |
| static bool VerifyCRC(Uint8 *data, int size) |
| { |
| Uint8 ubHdr = 0xA1; // hidp header is part of the CRC calculation |
| Uint32 unCRC, unPacketCRC; |
| Uint8 *packetCRC = data + size - sizeof(unPacketCRC); |
| unCRC = SDL_crc32(0, &ubHdr, 1); |
| unCRC = SDL_crc32(unCRC, data, (size_t)(size - sizeof(unCRC))); |
| |
| unPacketCRC = LOAD32(packetCRC[0], |
| packetCRC[1], |
| packetCRC[2], |
| packetCRC[3]); |
| return (unCRC == unPacketCRC); |
| } |
| |
| static bool HIDAPI_DriverPS4_IsPacketValid(SDL_DriverPS4_Context *ctx, Uint8 *data, int size) |
| { |
| switch (data[0]) { |
| case k_EPS4ReportIdUsbState: |
| if (size == 10) { |
| // This is non-enhanced mode, this packet is fine |
| return true; |
| } |
| |
| if (ctx->is_nacon_dongle && size >= (1 + sizeof(PS4StatePacket_t))) { |
| // The report timestamp doesn't change when the controller isn't connected |
| PS4StatePacket_t *packet = (PS4StatePacket_t *)&data[1]; |
| if (SDL_memcmp(packet->rgucTimestamp, ctx->last_state.rgucTimestamp, sizeof(packet->rgucTimestamp)) == 0) { |
| return false; |
| } |
| if (ctx->last_state.rgucAccelX[0] == 0 && ctx->last_state.rgucAccelX[1] == 0 && |
| ctx->last_state.rgucAccelY[0] == 0 && ctx->last_state.rgucAccelY[1] == 0 && |
| ctx->last_state.rgucAccelZ[0] == 0 && ctx->last_state.rgucAccelZ[1] == 0) { |
| // We don't have any state to compare yet, go ahead and copy it |
| SDL_memcpy(&ctx->last_state, &data[1], sizeof(PS4StatePacket_t)); |
| return false; |
| } |
| } |
| |
| /* In the case of a DS4 USB dongle, bit[2] of byte 31 indicates if a DS4 is actually connected (indicated by '0'). |
| * For non-dongle, this bit is always 0 (connected). |
| * This is usually the ID over USB, but the DS4v2 that started shipping with the PS4 Slim will also send this |
| * packet over BT with a size of 128 |
| */ |
| if (size >= 64 && !(data[31] & 0x04)) { |
| return true; |
| } |
| break; |
| case k_EPS4ReportIdBluetoothState1: |
| case k_EPS4ReportIdBluetoothState2: |
| case k_EPS4ReportIdBluetoothState3: |
| case k_EPS4ReportIdBluetoothState4: |
| case k_EPS4ReportIdBluetoothState5: |
| case k_EPS4ReportIdBluetoothState6: |
| case k_EPS4ReportIdBluetoothState7: |
| case k_EPS4ReportIdBluetoothState8: |
| case k_EPS4ReportIdBluetoothState9: |
| // Bluetooth state packets have two additional bytes at the beginning, the first notes if HID data is present |
| if (size >= 78 && (data[1] & 0x80)) { |
| if (VerifyCRC(data, 78)) { |
| ++ctx->valid_crc_packets; |
| } else { |
| if (ctx->valid_crc_packets > 0) { |
| --ctx->valid_crc_packets; |
| } |
| if (ctx->valid_crc_packets >= 3) { |
| // We're generally getting valid CRC, but failed one |
| return false; |
| } |
| } |
| return true; |
| } |
| break; |
| default: |
| break; |
| } |
| return false; |
| } |
| |
| static bool HIDAPI_DriverPS4_UpdateDevice(SDL_HIDAPI_Device *device) |
| { |
| SDL_DriverPS4_Context *ctx = (SDL_DriverPS4_Context *)device->context; |
| SDL_Joystick *joystick = NULL; |
| Uint8 data[USB_PACKET_LENGTH * 2]; |
| int size; |
| int packet_count = 0; |
| Uint64 now = SDL_GetTicks(); |
| |
| if (device->num_joysticks > 0) { |
| joystick = SDL_GetJoystickFromID(device->joysticks[0]); |
| } |
| |
| while ((size = SDL_hid_read_timeout(device->dev, data, sizeof(data), 0)) > 0) { |
| #ifdef DEBUG_PS4_PROTOCOL |
| HIDAPI_DumpPacket("PS4 packet: size = %d", data, size); |
| #endif |
| if (!HIDAPI_DriverPS4_IsPacketValid(ctx, data, size)) { |
| continue; |
| } |
| |
| ++packet_count; |
| ctx->last_packet = now; |
| |
| if (!joystick) { |
| continue; |
| } |
| |
| switch (data[0]) { |
| case k_EPS4ReportIdUsbState: |
| HIDAPI_DriverPS4_HandleStatePacket(joystick, device->dev, ctx, (PS4StatePacket_t *)&data[1], size - 1); |
| break; |
| case k_EPS4ReportIdBluetoothState1: |
| case k_EPS4ReportIdBluetoothState2: |
| case k_EPS4ReportIdBluetoothState3: |
| case k_EPS4ReportIdBluetoothState4: |
| case k_EPS4ReportIdBluetoothState5: |
| case k_EPS4ReportIdBluetoothState6: |
| case k_EPS4ReportIdBluetoothState7: |
| case k_EPS4ReportIdBluetoothState8: |
| case k_EPS4ReportIdBluetoothState9: |
| // This is the extended report, we can enable effects now in auto mode |
| HIDAPI_DriverPS4_UpdateEnhancedModeOnEnhancedReport(ctx); |
| |
| // Bluetooth state packets have two additional bytes at the beginning, the first notes if HID is present |
| HIDAPI_DriverPS4_HandleStatePacket(joystick, device->dev, ctx, (PS4StatePacket_t *)&data[3], size - 3); |
| break; |
| default: |
| #ifdef DEBUG_JOYSTICK |
| SDL_Log("Unknown PS4 packet: 0x%.2x", data[0]); |
| #endif |
| break; |
| } |
| } |
| |
| if (device->is_bluetooth) { |
| if (packet_count == 0) { |
| // Check to see if it looks like the device disconnected |
| if (now >= (ctx->last_packet + BLUETOOTH_DISCONNECT_TIMEOUT_MS)) { |
| // Send an empty output report to tickle the Bluetooth stack |
| HIDAPI_DriverPS4_TickleBluetooth(device); |
| ctx->last_packet = now; |
| } |
| } else { |
| // Reconnect the Bluetooth device once the USB device is gone |
| if (device->num_joysticks == 0 && |
| !HIDAPI_HasConnectedUSBDevice(device->serial)) { |
| HIDAPI_JoystickConnected(device, NULL); |
| } |
| } |
| } |
| |
| if (ctx->is_dongle || ctx->is_nacon_dongle) { |
| if (packet_count == 0) { |
| if (device->num_joysticks > 0) { |
| // Check to see if it looks like the device disconnected |
| if (now >= (ctx->last_packet + BLUETOOTH_DISCONNECT_TIMEOUT_MS)) { |
| HIDAPI_JoystickDisconnected(device, device->joysticks[0]); |
| } |
| } |
| } else { |
| if (device->num_joysticks == 0) { |
| char serial[18]; |
| size = ReadFeatureReport(device->dev, k_ePS4FeatureReportIdSerialNumber, data, sizeof(data)); |
| if (size >= 7 && (data[1] || data[2] || data[3] || data[4] || data[5] || data[6])) { |
| (void)SDL_snprintf(serial, sizeof(serial), "%.2x-%.2x-%.2x-%.2x-%.2x-%.2x", |
| data[6], data[5], data[4], data[3], data[2], data[1]); |
| HIDAPI_SetDeviceSerial(device, serial); |
| } |
| HIDAPI_JoystickConnected(device, NULL); |
| } |
| } |
| } |
| |
| if (packet_count == 0 && size < 0 && device->num_joysticks > 0) { |
| // Read error, device is disconnected |
| HIDAPI_JoystickDisconnected(device, device->joysticks[0]); |
| } |
| return (size >= 0); |
| } |
| |
| static void HIDAPI_DriverPS4_CloseJoystick(SDL_HIDAPI_Device *device, SDL_Joystick *joystick) |
| { |
| SDL_DriverPS4_Context *ctx = (SDL_DriverPS4_Context *)device->context; |
| |
| SDL_RemoveHintCallback(SDL_HINT_JOYSTICK_HIDAPI_PS4_REPORT_INTERVAL, |
| SDL_PS4ReportIntervalHintChanged, ctx); |
| SDL_RemoveHintCallback(SDL_HINT_JOYSTICK_ENHANCED_REPORTS, |
| SDL_PS4EnhancedReportsChanged, ctx); |
| |
| ctx->joystick = NULL; |
| |
| ctx->report_sensors = false; |
| ctx->enhanced_mode = false; |
| ctx->enhanced_mode_available = false; |
| } |
| |
| static void HIDAPI_DriverPS4_FreeDevice(SDL_HIDAPI_Device *device) |
| { |
| } |
| |
| SDL_HIDAPI_DeviceDriver SDL_HIDAPI_DriverPS4 = { |
| SDL_HINT_JOYSTICK_HIDAPI_PS4, |
| true, |
| HIDAPI_DriverPS4_RegisterHints, |
| HIDAPI_DriverPS4_UnregisterHints, |
| HIDAPI_DriverPS4_IsEnabled, |
| HIDAPI_DriverPS4_IsSupportedDevice, |
| HIDAPI_DriverPS4_InitDevice, |
| HIDAPI_DriverPS4_GetDevicePlayerIndex, |
| HIDAPI_DriverPS4_SetDevicePlayerIndex, |
| HIDAPI_DriverPS4_UpdateDevice, |
| HIDAPI_DriverPS4_OpenJoystick, |
| HIDAPI_DriverPS4_RumbleJoystick, |
| HIDAPI_DriverPS4_RumbleJoystickTriggers, |
| HIDAPI_DriverPS4_GetJoystickCapabilities, |
| HIDAPI_DriverPS4_SetJoystickLED, |
| HIDAPI_DriverPS4_SendJoystickEffect, |
| HIDAPI_DriverPS4_SetJoystickSensorsEnabled, |
| HIDAPI_DriverPS4_CloseJoystick, |
| HIDAPI_DriverPS4_FreeDevice, |
| }; |
| |
| #endif // SDL_JOYSTICK_HIDAPI_PS4 |
| |
| #endif // SDL_JOYSTICK_HIDAPI |
