| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2022 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. |
| */ |
| #include "../../SDL_internal.h" |
| |
| #ifdef SDL_JOYSTICK_HIDAPI |
| |
| #include "SDL_atomic.h" |
| #include "SDL_endian.h" |
| #include "SDL_hints.h" |
| #include "SDL_timer.h" |
| #include "SDL_joystick.h" |
| #include "../SDL_sysjoystick.h" |
| #include "SDL_hidapijoystick_c.h" |
| #include "SDL_hidapi_rumble.h" |
| #include "../../SDL_hints_c.h" |
| |
| #if defined(__WIN32__) || defined(__WINGDK__) |
| #include "../windows/SDL_rawinputjoystick_c.h" |
| #endif |
| |
| #ifdef SDL_USE_LIBUDEV |
| #include "../../core/linux/SDL_sandbox.h" |
| #endif |
| |
| struct joystick_hwdata |
| { |
| SDL_HIDAPI_Device *device; |
| }; |
| |
| static SDL_HIDAPI_DeviceDriver *SDL_HIDAPI_drivers[] = { |
| #ifdef SDL_JOYSTICK_HIDAPI_GAMECUBE |
| &SDL_HIDAPI_DriverGameCube, |
| #endif |
| #ifdef SDL_JOYSTICK_HIDAPI_LUNA |
| &SDL_HIDAPI_DriverLuna, |
| #endif |
| #ifdef SDL_JOYSTICK_HIDAPI_SHIELD |
| &SDL_HIDAPI_DriverShield, |
| #endif |
| #ifdef SDL_JOYSTICK_HIDAPI_PS3 |
| &SDL_HIDAPI_DriverPS3, |
| &SDL_HIDAPI_DriverPS3ThirdParty, |
| #endif |
| #ifdef SDL_JOYSTICK_HIDAPI_PS4 |
| &SDL_HIDAPI_DriverPS4, |
| #endif |
| #ifdef SDL_JOYSTICK_HIDAPI_PS5 |
| &SDL_HIDAPI_DriverPS5, |
| #endif |
| #ifdef SDL_JOYSTICK_HIDAPI_STADIA |
| &SDL_HIDAPI_DriverStadia, |
| #endif |
| #ifdef SDL_JOYSTICK_HIDAPI_STEAM |
| &SDL_HIDAPI_DriverSteam, |
| #endif |
| #ifdef SDL_JOYSTICK_HIDAPI_SWITCH |
| &SDL_HIDAPI_DriverNintendoClassic, |
| &SDL_HIDAPI_DriverJoyCons, |
| &SDL_HIDAPI_DriverSwitch, |
| #endif |
| #ifdef SDL_JOYSTICK_HIDAPI_WII |
| &SDL_HIDAPI_DriverWii, |
| #endif |
| #ifdef SDL_JOYSTICK_HIDAPI_XBOX360 |
| &SDL_HIDAPI_DriverXbox360, |
| &SDL_HIDAPI_DriverXbox360W, |
| #endif |
| #ifdef SDL_JOYSTICK_HIDAPI_XBOXONE |
| &SDL_HIDAPI_DriverXboxOne, |
| #endif |
| }; |
| static int SDL_HIDAPI_numdrivers = 0; |
| static SDL_SpinLock SDL_HIDAPI_spinlock; |
| static SDL_bool SDL_HIDAPI_hints_changed = SDL_FALSE; |
| static Uint32 SDL_HIDAPI_change_count = 0; |
| static SDL_HIDAPI_Device *SDL_HIDAPI_devices SDL_GUARDED_BY(SDL_joystick_lock); |
| static int SDL_HIDAPI_numjoysticks = 0; |
| static SDL_bool SDL_HIDAPI_combine_joycons = SDL_TRUE; |
| static SDL_bool initialized = SDL_FALSE; |
| static SDL_bool shutting_down = SDL_FALSE; |
| |
| void HIDAPI_DumpPacket(const char *prefix, const Uint8 *data, int size) |
| { |
| int i; |
| char *buffer; |
| size_t length = SDL_strlen(prefix) + 11 * (USB_PACKET_LENGTH / 8) + (5 * USB_PACKET_LENGTH * 2) + 1 + 1; |
| int start = 0, amount = size; |
| size_t current_len; |
| |
| buffer = (char *)SDL_malloc(length); |
| current_len = SDL_snprintf(buffer, length, prefix, size); |
| for (i = start; i < start + amount; ++i) { |
| if ((i % 8) == 0) { |
| current_len += SDL_snprintf(&buffer[current_len], length - current_len, "\n%.2d: ", i); |
| } |
| current_len += SDL_snprintf(&buffer[current_len], length - current_len, " 0x%.2x", data[i]); |
| } |
| SDL_strlcat(buffer, "\n", length); |
| SDL_Log("%s", buffer); |
| SDL_free(buffer); |
| } |
| |
| float HIDAPI_RemapVal(float val, float val_min, float val_max, float output_min, float output_max) |
| { |
| return output_min + (output_max - output_min) * (val - val_min) / (val_max - val_min); |
| } |
| |
| static void HIDAPI_UpdateDeviceList(void); |
| static void HIDAPI_JoystickClose(SDL_Joystick *joystick); |
| |
| static SDL_GameControllerType SDL_GetJoystickGameControllerProtocol(const char *name, Uint16 vendor, Uint16 product, int interface_number, int interface_class, int interface_subclass, int interface_protocol) |
| { |
| static const int LIBUSB_CLASS_VENDOR_SPEC = 0xFF; |
| static const int XB360_IFACE_SUBCLASS = 93; |
| static const int XB360_IFACE_PROTOCOL = 1; /* Wired */ |
| static const int XB360W_IFACE_PROTOCOL = 129; /* Wireless */ |
| static const int XBONE_IFACE_SUBCLASS = 71; |
| static const int XBONE_IFACE_PROTOCOL = 208; |
| |
| SDL_GameControllerType type = SDL_CONTROLLER_TYPE_UNKNOWN; |
| |
| /* This code should match the checks in libusb/hid.c and HIDDeviceManager.java */ |
| if (interface_class == LIBUSB_CLASS_VENDOR_SPEC && |
| interface_subclass == XB360_IFACE_SUBCLASS && |
| (interface_protocol == XB360_IFACE_PROTOCOL || |
| interface_protocol == XB360W_IFACE_PROTOCOL)) { |
| |
| static const int SUPPORTED_VENDORS[] = { |
| 0x0079, /* GPD Win 2 */ |
| 0x044f, /* Thrustmaster */ |
| 0x045e, /* Microsoft */ |
| 0x046d, /* Logitech */ |
| 0x056e, /* Elecom */ |
| 0x06a3, /* Saitek */ |
| 0x0738, /* Mad Catz */ |
| 0x07ff, /* Mad Catz */ |
| 0x0e6f, /* PDP */ |
| 0x0f0d, /* Hori */ |
| 0x1038, /* SteelSeries */ |
| 0x11c9, /* Nacon */ |
| 0x12ab, /* Unknown */ |
| 0x1430, /* RedOctane */ |
| 0x146b, /* BigBen */ |
| 0x1532, /* Razer */ |
| 0x15e4, /* Numark */ |
| 0x162e, /* Joytech */ |
| 0x1689, /* Razer Onza */ |
| 0x1949, /* Lab126, Inc. */ |
| 0x1bad, /* Harmonix */ |
| 0x20d6, /* PowerA */ |
| 0x24c6, /* PowerA */ |
| 0x2c22, /* Qanba */ |
| 0x2dc8, /* 8BitDo */ |
| }; |
| |
| int i; |
| for (i = 0; i < SDL_arraysize(SUPPORTED_VENDORS); ++i) { |
| if (vendor == SUPPORTED_VENDORS[i]) { |
| type = SDL_CONTROLLER_TYPE_XBOX360; |
| break; |
| } |
| } |
| } |
| |
| if (interface_number == 0 && |
| interface_class == LIBUSB_CLASS_VENDOR_SPEC && |
| interface_subclass == XBONE_IFACE_SUBCLASS && |
| interface_protocol == XBONE_IFACE_PROTOCOL) { |
| |
| static const int SUPPORTED_VENDORS[] = { |
| 0x044f, /* Thrustmaster */ |
| 0x045e, /* Microsoft */ |
| 0x0738, /* Mad Catz */ |
| 0x0e6f, /* PDP */ |
| 0x0f0d, /* Hori */ |
| 0x1532, /* Razer */ |
| 0x20d6, /* PowerA */ |
| 0x24c6, /* PowerA */ |
| 0x2dc8, /* 8BitDo */ |
| 0x2e24, /* Hyperkin */ |
| }; |
| |
| int i; |
| for (i = 0; i < SDL_arraysize(SUPPORTED_VENDORS); ++i) { |
| if (vendor == SUPPORTED_VENDORS[i]) { |
| type = SDL_CONTROLLER_TYPE_XBOXONE; |
| break; |
| } |
| } |
| } |
| |
| if (type == SDL_CONTROLLER_TYPE_UNKNOWN) { |
| type = SDL_GetJoystickGameControllerTypeFromVIDPID(vendor, product, name, SDL_FALSE); |
| } |
| return type; |
| } |
| |
| static SDL_bool HIDAPI_IsDeviceSupported(Uint16 vendor_id, Uint16 product_id, Uint16 version, const char *name) |
| { |
| int i; |
| SDL_GameControllerType type = SDL_GetJoystickGameControllerProtocol(name, vendor_id, product_id, -1, 0, 0, 0); |
| |
| for (i = 0; i < SDL_arraysize(SDL_HIDAPI_drivers); ++i) { |
| SDL_HIDAPI_DeviceDriver *driver = SDL_HIDAPI_drivers[i]; |
| if (driver->enabled && driver->IsSupportedDevice(NULL, name, type, vendor_id, product_id, version, -1, 0, 0, 0)) { |
| return SDL_TRUE; |
| } |
| } |
| return SDL_FALSE; |
| } |
| |
| static SDL_HIDAPI_DeviceDriver *HIDAPI_GetDeviceDriver(SDL_HIDAPI_Device *device) |
| { |
| const Uint16 USAGE_PAGE_GENERIC_DESKTOP = 0x0001; |
| const Uint16 USAGE_JOYSTICK = 0x0004; |
| const Uint16 USAGE_GAMEPAD = 0x0005; |
| const Uint16 USAGE_MULTIAXISCONTROLLER = 0x0008; |
| int i; |
| |
| if (device->num_children > 0) { |
| return &SDL_HIDAPI_DriverCombined; |
| } |
| |
| if (SDL_ShouldIgnoreJoystick(device->name, device->guid)) { |
| return NULL; |
| } |
| |
| if (device->vendor_id != USB_VENDOR_VALVE) { |
| if (device->usage_page && device->usage_page != USAGE_PAGE_GENERIC_DESKTOP) { |
| return NULL; |
| } |
| if (device->usage && device->usage != USAGE_JOYSTICK && device->usage != USAGE_GAMEPAD && device->usage != USAGE_MULTIAXISCONTROLLER) { |
| return NULL; |
| } |
| } |
| |
| for (i = 0; i < SDL_arraysize(SDL_HIDAPI_drivers); ++i) { |
| SDL_HIDAPI_DeviceDriver *driver = SDL_HIDAPI_drivers[i]; |
| if (driver->enabled && driver->IsSupportedDevice(device, device->name, device->type, device->vendor_id, device->product_id, device->version, device->interface_number, device->interface_class, device->interface_subclass, device->interface_protocol)) { |
| return driver; |
| } |
| } |
| return NULL; |
| } |
| |
| static SDL_HIDAPI_Device *HIDAPI_GetDeviceByIndex(int device_index, SDL_JoystickID *pJoystickID) |
| { |
| SDL_HIDAPI_Device *device; |
| |
| SDL_AssertJoysticksLocked(); |
| |
| for (device = SDL_HIDAPI_devices; device; device = device->next) { |
| if (device->parent) { |
| continue; |
| } |
| if (device->driver) { |
| if (device_index < device->num_joysticks) { |
| if (pJoystickID) { |
| *pJoystickID = device->joysticks[device_index]; |
| } |
| return device; |
| } |
| device_index -= device->num_joysticks; |
| } |
| } |
| return NULL; |
| } |
| |
| static SDL_HIDAPI_Device *HIDAPI_GetJoystickByInfo(const char *path, Uint16 vendor_id, Uint16 product_id) |
| { |
| SDL_HIDAPI_Device *device; |
| |
| SDL_AssertJoysticksLocked(); |
| |
| for (device = SDL_HIDAPI_devices; device; device = device->next) { |
| if (device->vendor_id == vendor_id && device->product_id == product_id && |
| SDL_strcmp(device->path, path) == 0) { |
| break; |
| } |
| } |
| return device; |
| } |
| |
| static void HIDAPI_CleanupDeviceDriver(SDL_HIDAPI_Device *device) |
| { |
| if (!device->driver) { |
| return; /* Already cleaned up */ |
| } |
| |
| /* Disconnect any joysticks */ |
| while (device->num_joysticks && device->joysticks) { |
| HIDAPI_JoystickDisconnected(device, device->joysticks[0]); |
| } |
| |
| device->driver->FreeDevice(device); |
| device->driver = NULL; |
| |
| SDL_LockMutex(device->dev_lock); |
| { |
| if (device->dev) { |
| SDL_hid_close(device->dev); |
| device->dev = NULL; |
| } |
| |
| if (device->context) { |
| SDL_free(device->context); |
| device->context = NULL; |
| } |
| } |
| SDL_UnlockMutex(device->dev_lock); |
| } |
| |
| static void HIDAPI_SetupDeviceDriver(SDL_HIDAPI_Device *device, SDL_bool *removed) SDL_NO_THREAD_SAFETY_ANALYSIS /* We unlock the joystick lock to be able to open the HID device on Android */ |
| { |
| *removed = SDL_FALSE; |
| |
| if (device->driver) { |
| SDL_bool enabled; |
| |
| if (device->vendor_id == USB_VENDOR_NINTENDO && device->product_id == USB_PRODUCT_NINTENDO_SWITCH_JOYCON_PAIR) { |
| enabled = SDL_HIDAPI_combine_joycons; |
| } else { |
| enabled = device->driver->enabled; |
| } |
| if (device->children) { |
| int i; |
| |
| for (i = 0; i < device->num_children; ++i) { |
| SDL_HIDAPI_Device *child = device->children[i]; |
| if (!child->driver || !child->driver->enabled) { |
| enabled = SDL_FALSE; |
| break; |
| } |
| } |
| } |
| if (!enabled) { |
| HIDAPI_CleanupDeviceDriver(device); |
| } |
| return; /* Already setup */ |
| } |
| |
| if (HIDAPI_GetDeviceDriver(device)) { |
| /* We might have a device driver for this device, try opening it and see */ |
| if (device->num_children == 0) { |
| /* On Android we need to leave joysticks unlocked because it calls |
| * out to the main thread for permissions and the main thread can |
| * be in the process of handling controller input. |
| * |
| * See https://github.com/libsdl-org/SDL/issues/6347 for details |
| */ |
| int lock_count = 0; |
| SDL_HIDAPI_Device *curr; |
| SDL_hid_device *dev; |
| char *path = SDL_strdup(device->path); |
| |
| /* Wait a little bit for the device to initialize */ |
| SDL_Delay(10); |
| |
| SDL_AssertJoysticksLocked(); |
| while (SDL_JoysticksLocked()) { |
| ++lock_count; |
| SDL_UnlockJoysticks(); |
| } |
| |
| dev = SDL_hid_open_path(path, 0); |
| |
| while (lock_count > 0) { |
| --lock_count; |
| SDL_LockJoysticks(); |
| } |
| SDL_free(path); |
| |
| /* Make sure the device didn't get removed while opening the HID path */ |
| for (curr = SDL_HIDAPI_devices; curr && curr != device; curr = curr->next) { |
| } |
| if (curr == NULL) { |
| *removed = SDL_TRUE; |
| if (dev) { |
| SDL_hid_close(dev); |
| } |
| return; |
| } |
| |
| if (dev == NULL) { |
| SDL_LogDebug(SDL_LOG_CATEGORY_INPUT, |
| "HIDAPI_SetupDeviceDriver() couldn't open %s: %s\n", |
| device->path, SDL_GetError()); |
| return; |
| } |
| SDL_hid_set_nonblocking(dev, 1); |
| |
| device->dev = dev; |
| } |
| |
| device->driver = HIDAPI_GetDeviceDriver(device); |
| |
| /* Initialize the device, which may cause a connected event */ |
| if (device->driver && !device->driver->InitDevice(device)) { |
| HIDAPI_CleanupDeviceDriver(device); |
| } |
| |
| if (!device->driver && device->dev) { |
| /* No driver claimed this device, go ahead and close it */ |
| SDL_hid_close(device->dev); |
| device->dev = NULL; |
| } |
| } |
| } |
| |
| static void SDL_HIDAPI_UpdateDrivers(void) |
| { |
| int i; |
| SDL_HIDAPI_Device *device; |
| SDL_bool removed; |
| |
| SDL_AssertJoysticksLocked(); |
| |
| SDL_HIDAPI_numdrivers = 0; |
| for (i = 0; i < SDL_arraysize(SDL_HIDAPI_drivers); ++i) { |
| SDL_HIDAPI_DeviceDriver *driver = SDL_HIDAPI_drivers[i]; |
| driver->enabled = driver->IsEnabled(); |
| if (driver->enabled && driver != &SDL_HIDAPI_DriverCombined) { |
| ++SDL_HIDAPI_numdrivers; |
| } |
| } |
| |
| removed = SDL_FALSE; |
| do { |
| for (device = SDL_HIDAPI_devices; device; device = device->next) { |
| HIDAPI_SetupDeviceDriver(device, &removed); |
| if (removed) { |
| break; |
| } |
| } |
| } while (removed); |
| } |
| |
| static void SDLCALL SDL_HIDAPIDriverHintChanged(void *userdata, const char *name, const char *oldValue, const char *hint) |
| { |
| if (SDL_strcmp(name, SDL_HINT_JOYSTICK_HIDAPI_COMBINE_JOY_CONS) == 0) { |
| SDL_HIDAPI_combine_joycons = SDL_GetStringBoolean(hint, SDL_TRUE); |
| } |
| SDL_HIDAPI_hints_changed = SDL_TRUE; |
| SDL_HIDAPI_change_count = 0; |
| } |
| |
| static int HIDAPI_JoystickInit(void) |
| { |
| int i; |
| |
| if (initialized) { |
| return 0; |
| } |
| |
| #if defined(SDL_USE_LIBUDEV) |
| if (linux_enumeration_method == ENUMERATION_UNSET) { |
| if (SDL_getenv("SDL_HIDAPI_JOYSTICK_DISABLE_UDEV") != NULL) { |
| SDL_LogDebug(SDL_LOG_CATEGORY_INPUT, |
| "udev disabled by SDL_HIDAPI_JOYSTICK_DISABLE_UDEV"); |
| linux_enumeration_method = ENUMERATION_FALLBACK; |
| } else if (SDL_DetectSandbox() != SDL_SANDBOX_NONE) { |
| SDL_LogDebug(SDL_LOG_CATEGORY_INPUT, |
| "Container detected, disabling HIDAPI udev integration"); |
| linux_enumeration_method = ENUMERATION_FALLBACK; |
| } else { |
| SDL_LogDebug(SDL_LOG_CATEGORY_INPUT, |
| "Using udev for HIDAPI joystick device discovery"); |
| linux_enumeration_method = ENUMERATION_LIBUDEV; |
| } |
| } |
| #endif |
| |
| if (SDL_hid_init() < 0) { |
| return SDL_SetError("Couldn't initialize hidapi"); |
| } |
| |
| for (i = 0; i < SDL_arraysize(SDL_HIDAPI_drivers); ++i) { |
| SDL_HIDAPI_DeviceDriver *driver = SDL_HIDAPI_drivers[i]; |
| driver->RegisterHints(SDL_HIDAPIDriverHintChanged, driver); |
| } |
| SDL_AddHintCallback(SDL_HINT_JOYSTICK_HIDAPI_COMBINE_JOY_CONS, |
| SDL_HIDAPIDriverHintChanged, NULL); |
| SDL_AddHintCallback(SDL_HINT_JOYSTICK_HIDAPI, |
| SDL_HIDAPIDriverHintChanged, NULL); |
| |
| SDL_HIDAPI_change_count = SDL_hid_device_change_count(); |
| HIDAPI_UpdateDeviceList(); |
| HIDAPI_UpdateDevices(); |
| |
| initialized = SDL_TRUE; |
| |
| return 0; |
| } |
| |
| static SDL_bool HIDAPI_AddJoystickInstanceToDevice(SDL_HIDAPI_Device *device, SDL_JoystickID joystickID) |
| { |
| SDL_JoystickID *joysticks = (SDL_JoystickID *)SDL_realloc(device->joysticks, (device->num_joysticks + 1) * sizeof(*device->joysticks)); |
| if (joysticks == NULL) { |
| return SDL_FALSE; |
| } |
| |
| device->joysticks = joysticks; |
| device->joysticks[device->num_joysticks++] = joystickID; |
| return SDL_TRUE; |
| } |
| |
| static SDL_bool HIDAPI_DelJoystickInstanceFromDevice(SDL_HIDAPI_Device *device, SDL_JoystickID joystickID) |
| { |
| int i, size; |
| |
| for (i = 0; i < device->num_joysticks; ++i) { |
| if (device->joysticks[i] == joystickID) { |
| size = (device->num_joysticks - i - 1) * sizeof(SDL_JoystickID); |
| SDL_memmove(&device->joysticks[i], &device->joysticks[i + 1], size); |
| --device->num_joysticks; |
| if (device->num_joysticks == 0) { |
| SDL_free(device->joysticks); |
| device->joysticks = NULL; |
| } |
| return SDL_TRUE; |
| } |
| } |
| return SDL_FALSE; |
| } |
| |
| static SDL_bool HIDAPI_JoystickInstanceIsUnique(SDL_HIDAPI_Device *device, SDL_JoystickID joystickID) |
| { |
| if (device->parent && device->num_joysticks == 1 && device->parent->num_joysticks == 1 && |
| device->joysticks[0] == device->parent->joysticks[0]) { |
| return SDL_FALSE; |
| } |
| return SDL_TRUE; |
| } |
| |
| void HIDAPI_SetDeviceName(SDL_HIDAPI_Device *device, const char *name) |
| { |
| if (name && *name && SDL_strcmp(name, device->name) != 0) { |
| SDL_free(device->name); |
| device->name = SDL_strdup(name); |
| SDL_SetJoystickGUIDCRC(&device->guid, SDL_crc16(0, name, SDL_strlen(name))); |
| } |
| } |
| |
| void HIDAPI_SetDeviceProduct(SDL_HIDAPI_Device *device, Uint16 product_id) |
| { |
| /* Don't set the device product ID directly, or we'll constantly re-enumerate this device */ |
| SDL_SetJoystickGUIDProduct(&device->guid, product_id); |
| } |
| |
| void HIDAPI_SetDeviceSerial(SDL_HIDAPI_Device *device, const char *serial) |
| { |
| if (serial && *serial && (!device->serial || SDL_strcmp(serial, device->serial) != 0)) { |
| SDL_free(device->serial); |
| device->serial = SDL_strdup(serial); |
| } |
| } |
| |
| SDL_bool |
| HIDAPI_HasConnectedUSBDevice(const char *serial) |
| { |
| SDL_HIDAPI_Device *device; |
| |
| SDL_AssertJoysticksLocked(); |
| |
| if (serial == NULL) { |
| return SDL_FALSE; |
| } |
| |
| for (device = SDL_HIDAPI_devices; device; device = device->next) { |
| if (!device->driver) { |
| continue; |
| } |
| |
| if (device->is_bluetooth) { |
| continue; |
| } |
| |
| if (device->serial && SDL_strcmp(serial, device->serial) == 0) { |
| return SDL_TRUE; |
| } |
| } |
| return SDL_FALSE; |
| } |
| |
| void HIDAPI_DisconnectBluetoothDevice(const char *serial) |
| { |
| SDL_HIDAPI_Device *device; |
| |
| SDL_AssertJoysticksLocked(); |
| |
| if (serial == NULL) { |
| return; |
| } |
| |
| for (device = SDL_HIDAPI_devices; device; device = device->next) { |
| if (!device->driver) { |
| continue; |
| } |
| |
| if (!device->is_bluetooth) { |
| continue; |
| } |
| |
| if (device->serial && SDL_strcmp(serial, device->serial) == 0) { |
| while (device->num_joysticks && device->joysticks) { |
| HIDAPI_JoystickDisconnected(device, device->joysticks[0]); |
| } |
| } |
| } |
| } |
| |
| SDL_bool |
| HIDAPI_JoystickConnected(SDL_HIDAPI_Device *device, SDL_JoystickID *pJoystickID) |
| { |
| int i, j; |
| SDL_JoystickID joystickID; |
| |
| SDL_AssertJoysticksLocked(); |
| |
| for (i = 0; i < device->num_children; ++i) { |
| SDL_HIDAPI_Device *child = device->children[i]; |
| for (j = child->num_joysticks; j--;) { |
| HIDAPI_JoystickDisconnected(child, child->joysticks[j]); |
| } |
| } |
| |
| joystickID = SDL_GetNextJoystickInstanceID(); |
| HIDAPI_AddJoystickInstanceToDevice(device, joystickID); |
| |
| for (i = 0; i < device->num_children; ++i) { |
| SDL_HIDAPI_Device *child = device->children[i]; |
| HIDAPI_AddJoystickInstanceToDevice(child, joystickID); |
| } |
| |
| ++SDL_HIDAPI_numjoysticks; |
| |
| SDL_PrivateJoystickAdded(joystickID); |
| |
| if (pJoystickID) { |
| *pJoystickID = joystickID; |
| } |
| return SDL_TRUE; |
| } |
| |
| void HIDAPI_JoystickDisconnected(SDL_HIDAPI_Device *device, SDL_JoystickID joystickID) |
| { |
| int i, j; |
| |
| SDL_LockJoysticks(); |
| |
| if (!HIDAPI_JoystickInstanceIsUnique(device, joystickID)) { |
| /* Disconnecting a child always disconnects the parent */ |
| device = device->parent; |
| } |
| |
| for (i = 0; i < device->num_joysticks; ++i) { |
| if (device->joysticks[i] == joystickID) { |
| SDL_Joystick *joystick = SDL_JoystickFromInstanceID(joystickID); |
| if (joystick) { |
| HIDAPI_JoystickClose(joystick); |
| } |
| |
| HIDAPI_DelJoystickInstanceFromDevice(device, joystickID); |
| |
| for (j = 0; j < device->num_children; ++j) { |
| SDL_HIDAPI_Device *child = device->children[j]; |
| HIDAPI_DelJoystickInstanceFromDevice(child, joystickID); |
| } |
| |
| --SDL_HIDAPI_numjoysticks; |
| |
| if (!shutting_down) { |
| SDL_PrivateJoystickRemoved(joystickID); |
| } |
| } |
| } |
| |
| /* Rescan the device list in case device state has changed */ |
| SDL_HIDAPI_change_count = 0; |
| |
| SDL_UnlockJoysticks(); |
| } |
| |
| static int HIDAPI_JoystickGetCount(void) |
| { |
| return SDL_HIDAPI_numjoysticks; |
| } |
| |
| static char *HIDAPI_ConvertString(const wchar_t *wide_string) |
| { |
| char *string = NULL; |
| |
| if (wide_string) { |
| string = SDL_iconv_string("UTF-8", "WCHAR_T", (char *)wide_string, (SDL_wcslen(wide_string) + 1) * sizeof(wchar_t)); |
| if (string == NULL) { |
| switch (sizeof(wchar_t)) { |
| case 2: |
| string = SDL_iconv_string("UTF-8", "UCS-2-INTERNAL", (char *)wide_string, (SDL_wcslen(wide_string) + 1) * sizeof(wchar_t)); |
| break; |
| case 4: |
| string = SDL_iconv_string("UTF-8", "UCS-4-INTERNAL", (char *)wide_string, (SDL_wcslen(wide_string) + 1) * sizeof(wchar_t)); |
| break; |
| } |
| } |
| } |
| return string; |
| } |
| |
| static SDL_HIDAPI_Device *HIDAPI_AddDevice(const struct SDL_hid_device_info *info, int num_children, SDL_HIDAPI_Device **children) |
| { |
| SDL_HIDAPI_Device *device; |
| SDL_HIDAPI_Device *curr, *last = NULL; |
| SDL_bool removed; |
| |
| SDL_AssertJoysticksLocked(); |
| |
| for (curr = SDL_HIDAPI_devices, last = NULL; curr; last = curr, curr = curr->next) { |
| } |
| |
| device = (SDL_HIDAPI_Device *)SDL_calloc(1, sizeof(*device)); |
| if (device == NULL) { |
| return NULL; |
| } |
| device->path = SDL_strdup(info->path); |
| if (!device->path) { |
| SDL_free(device); |
| return NULL; |
| } |
| device->seen = SDL_TRUE; |
| device->vendor_id = info->vendor_id; |
| device->product_id = info->product_id; |
| device->version = info->release_number; |
| device->interface_number = info->interface_number; |
| device->interface_class = info->interface_class; |
| device->interface_subclass = info->interface_subclass; |
| device->interface_protocol = info->interface_protocol; |
| device->usage_page = info->usage_page; |
| device->usage = info->usage; |
| device->dev_lock = SDL_CreateMutex(); |
| |
| /* Need the device name before getting the driver to know whether to ignore this device */ |
| { |
| char *manufacturer_string = HIDAPI_ConvertString(info->manufacturer_string); |
| char *product_string = HIDAPI_ConvertString(info->product_string); |
| char *serial_number = HIDAPI_ConvertString(info->serial_number); |
| |
| device->name = SDL_CreateJoystickName(device->vendor_id, device->product_id, manufacturer_string, product_string); |
| |
| if (manufacturer_string) { |
| SDL_free(manufacturer_string); |
| } |
| if (product_string) { |
| SDL_free(product_string); |
| } |
| |
| if (serial_number && *serial_number) { |
| device->serial = serial_number; |
| } else { |
| SDL_free(serial_number); |
| } |
| |
| if (!device->name) { |
| SDL_free(device->serial); |
| SDL_free(device->path); |
| SDL_free(device); |
| return NULL; |
| } |
| } |
| |
| /* FIXME: Is there any way to tell whether this is a Bluetooth device? */ |
| device->guid = SDL_CreateJoystickGUID(SDL_HARDWARE_BUS_USB, device->vendor_id, device->product_id, device->version, device->name, 'h', 0); |
| device->joystick_type = SDL_JOYSTICK_TYPE_GAMECONTROLLER; |
| device->type = SDL_GetJoystickGameControllerProtocol(device->name, device->vendor_id, device->product_id, device->interface_number, device->interface_class, device->interface_subclass, device->interface_protocol); |
| |
| if (num_children > 0) { |
| int i; |
| |
| device->num_children = num_children; |
| device->children = children; |
| for (i = 0; i < num_children; ++i) { |
| children[i]->parent = device; |
| } |
| } |
| |
| /* Add it to the list */ |
| if (last) { |
| last->next = device; |
| } else { |
| SDL_HIDAPI_devices = device; |
| } |
| |
| removed = SDL_FALSE; |
| HIDAPI_SetupDeviceDriver(device, &removed); |
| if (removed) { |
| return NULL; |
| } |
| |
| #ifdef DEBUG_HIDAPI |
| SDL_Log("Added HIDAPI device '%s' VID 0x%.4x, PID 0x%.4x, version %d, serial %s, interface %d, interface_class %d, interface_subclass %d, interface_protocol %d, usage page 0x%.4x, usage 0x%.4x, path = %s, driver = %s (%s)\n", device->name, device->vendor_id, device->product_id, device->version, device->serial ? device->serial : "NONE", device->interface_number, device->interface_class, device->interface_subclass, device->interface_protocol, device->usage_page, device->usage, device->path, device->driver ? device->driver->name : "NONE", device->driver && device->driver->enabled ? "ENABLED" : "DISABLED"); |
| #endif |
| |
| return device; |
| } |
| |
| static void HIDAPI_DelDevice(SDL_HIDAPI_Device *device) |
| { |
| SDL_HIDAPI_Device *curr, *last; |
| int i; |
| |
| SDL_AssertJoysticksLocked(); |
| |
| #ifdef DEBUG_HIDAPI |
| SDL_Log("Removing HIDAPI device '%s' VID 0x%.4x, PID 0x%.4x, version %d, serial %s, interface %d, interface_class %d, interface_subclass %d, interface_protocol %d, usage page 0x%.4x, usage 0x%.4x, path = %s, driver = %s (%s)\n", device->name, device->vendor_id, device->product_id, device->version, device->serial ? device->serial : "NONE", device->interface_number, device->interface_class, device->interface_subclass, device->interface_protocol, device->usage_page, device->usage, device->path, device->driver ? device->driver->name : "NONE", device->driver && device->driver->enabled ? "ENABLED" : "DISABLED"); |
| #endif |
| |
| for (curr = SDL_HIDAPI_devices, last = NULL; curr; last = curr, curr = curr->next) { |
| if (curr == device) { |
| if (last) { |
| last->next = curr->next; |
| } else { |
| SDL_HIDAPI_devices = curr->next; |
| } |
| |
| HIDAPI_CleanupDeviceDriver(device); |
| |
| /* Make sure the rumble thread is done with this device */ |
| while (SDL_AtomicGet(&device->rumble_pending) > 0) { |
| SDL_Delay(10); |
| } |
| |
| for (i = 0; i < device->num_children; ++i) { |
| device->children[i]->parent = NULL; |
| } |
| |
| SDL_DestroyMutex(device->dev_lock); |
| SDL_free(device->serial); |
| SDL_free(device->name); |
| SDL_free(device->path); |
| SDL_free(device->children); |
| SDL_free(device); |
| return; |
| } |
| } |
| } |
| |
| static SDL_bool HIDAPI_CreateCombinedJoyCons() |
| { |
| SDL_HIDAPI_Device *device, *combined; |
| SDL_HIDAPI_Device *joycons[2] = { NULL, NULL }; |
| |
| SDL_AssertJoysticksLocked(); |
| |
| if (!SDL_HIDAPI_combine_joycons) { |
| return SDL_FALSE; |
| } |
| |
| for (device = SDL_HIDAPI_devices; device; device = device->next) { |
| Uint16 vendor, product; |
| |
| if (!device->driver) { |
| /* Unsupported device */ |
| continue; |
| } |
| if (device->parent) { |
| /* This device is already part of a combined device */ |
| continue; |
| } |
| |
| SDL_GetJoystickGUIDInfo(device->guid, &vendor, &product, NULL, NULL); |
| |
| if (!joycons[0] && |
| (SDL_IsJoystickNintendoSwitchJoyConLeft(vendor, product) || |
| (SDL_IsJoystickNintendoSwitchJoyConGrip(vendor, product) && |
| SDL_strstr(device->name, "(L)") != NULL))) { |
| joycons[0] = device; |
| } |
| if (!joycons[1] && |
| (SDL_IsJoystickNintendoSwitchJoyConRight(vendor, product) || |
| (SDL_IsJoystickNintendoSwitchJoyConGrip(vendor, product) && |
| SDL_strstr(device->name, "(R)") != NULL))) { |
| joycons[1] = device; |
| } |
| if (joycons[0] && joycons[1]) { |
| SDL_hid_device_info info; |
| SDL_HIDAPI_Device **children = (SDL_HIDAPI_Device **)SDL_malloc(2 * sizeof(SDL_HIDAPI_Device *)); |
| if (children == NULL) { |
| return SDL_FALSE; |
| } |
| children[0] = joycons[0]; |
| children[1] = joycons[1]; |
| |
| SDL_zero(info); |
| info.path = "nintendo_joycons_combined"; |
| info.vendor_id = USB_VENDOR_NINTENDO; |
| info.product_id = USB_PRODUCT_NINTENDO_SWITCH_JOYCON_PAIR; |
| info.interface_number = -1; |
| info.usage_page = USB_USAGEPAGE_GENERIC_DESKTOP; |
| info.usage = USB_USAGE_GENERIC_GAMEPAD; |
| info.manufacturer_string = L"Nintendo"; |
| info.product_string = L"Switch Joy-Con (L/R)"; |
| |
| combined = HIDAPI_AddDevice(&info, 2, children); |
| if (combined && combined->driver) { |
| return SDL_TRUE; |
| } else { |
| if (combined) { |
| HIDAPI_DelDevice(combined); |
| } else { |
| SDL_free(children); |
| } |
| return SDL_FALSE; |
| } |
| } |
| } |
| return SDL_FALSE; |
| } |
| |
| static void HIDAPI_UpdateDeviceList(void) |
| { |
| SDL_HIDAPI_Device *device; |
| struct SDL_hid_device_info *devs, *info; |
| |
| SDL_LockJoysticks(); |
| |
| if (SDL_HIDAPI_hints_changed) { |
| SDL_HIDAPI_UpdateDrivers(); |
| SDL_HIDAPI_hints_changed = SDL_FALSE; |
| } |
| |
| /* Prepare the existing device list */ |
| for (device = SDL_HIDAPI_devices; device; device = device->next) { |
| if (device->children) { |
| continue; |
| } |
| device->seen = SDL_FALSE; |
| } |
| |
| /* Enumerate the devices */ |
| if (SDL_HIDAPI_numdrivers > 0) { |
| devs = SDL_hid_enumerate(0, 0); |
| if (devs) { |
| for (info = devs; info; info = info->next) { |
| device = HIDAPI_GetJoystickByInfo(info->path, info->vendor_id, info->product_id); |
| if (device) { |
| device->seen = SDL_TRUE; |
| } else { |
| HIDAPI_AddDevice(info, 0, NULL); |
| } |
| } |
| SDL_hid_free_enumeration(devs); |
| } |
| } |
| |
| /* Remove any devices that weren't seen or have been disconnected due to read errors */ |
| check_removed: |
| device = SDL_HIDAPI_devices; |
| while (device) { |
| SDL_HIDAPI_Device *next = device->next; |
| |
| if (!device->seen || |
| ((device->driver || device->children) && device->num_joysticks == 0 && !device->dev)) { |
| if (device->parent) { |
| /* When a child device goes away, so does the parent */ |
| int i; |
| device = device->parent; |
| for (i = 0; i < device->num_children; ++i) { |
| HIDAPI_DelDevice(device->children[i]); |
| } |
| HIDAPI_DelDevice(device); |
| |
| /* Update the device list again to pick up any children left */ |
| SDL_HIDAPI_change_count = 0; |
| |
| /* We deleted more than one device here, restart the loop */ |
| goto check_removed; |
| } else { |
| HIDAPI_DelDevice(device); |
| |
| /* Update the device list again in case this device comes back */ |
| SDL_HIDAPI_change_count = 0; |
| } |
| } |
| device = next; |
| } |
| |
| /* See if we can create any combined Joy-Con controllers */ |
| while (HIDAPI_CreateCombinedJoyCons()) { |
| } |
| |
| SDL_UnlockJoysticks(); |
| } |
| |
| static SDL_bool HIDAPI_IsEquivalentToDevice(Uint16 vendor_id, Uint16 product_id, SDL_HIDAPI_Device *device) |
| { |
| if (vendor_id == device->vendor_id && product_id == device->product_id) { |
| return SDL_TRUE; |
| } |
| |
| if (vendor_id == USB_VENDOR_MICROSOFT) { |
| /* If we're looking for the wireless XBox 360 controller, also look for the dongle */ |
| if (product_id == USB_PRODUCT_XBOX360_XUSB_CONTROLLER && device->product_id == USB_PRODUCT_XBOX360_WIRELESS_RECEIVER) { |
| return SDL_TRUE; |
| } |
| |
| /* If we're looking for the raw input Xbox One controller, match it against any other Xbox One controller */ |
| if (product_id == USB_PRODUCT_XBOX_ONE_XBOXGIP_CONTROLLER && |
| device->type == SDL_CONTROLLER_TYPE_XBOXONE) { |
| return SDL_TRUE; |
| } |
| |
| /* If we're looking for an XInput controller, match it against any other Xbox controller */ |
| if (product_id == USB_PRODUCT_XBOX_ONE_XINPUT_CONTROLLER) { |
| if (device->type == SDL_CONTROLLER_TYPE_XBOX360 || device->type == SDL_CONTROLLER_TYPE_XBOXONE) { |
| return SDL_TRUE; |
| } |
| } |
| } |
| |
| if (vendor_id == USB_VENDOR_NVIDIA) { |
| /* If we're looking for the NVIDIA SHIELD controller Xbox interface, match it against any NVIDIA SHIELD controller */ |
| if (product_id == 0xb400 && |
| device->type == SDL_CONTROLLER_TYPE_NVIDIA_SHIELD) { |
| return SDL_TRUE; |
| } |
| } |
| return SDL_FALSE; |
| } |
| |
| SDL_bool |
| HIDAPI_IsDeviceTypePresent(SDL_GameControllerType type) |
| { |
| SDL_HIDAPI_Device *device; |
| SDL_bool result = SDL_FALSE; |
| |
| /* Make sure we're initialized, as this could be called from other drivers during startup */ |
| if (HIDAPI_JoystickInit() < 0) { |
| return SDL_FALSE; |
| } |
| |
| if (SDL_AtomicTryLock(&SDL_HIDAPI_spinlock)) { |
| HIDAPI_UpdateDeviceList(); |
| SDL_AtomicUnlock(&SDL_HIDAPI_spinlock); |
| } |
| |
| SDL_LockJoysticks(); |
| for (device = SDL_HIDAPI_devices; device; device = device->next) { |
| if (device->driver && device->type == type) { |
| result = SDL_TRUE; |
| break; |
| } |
| } |
| SDL_UnlockJoysticks(); |
| |
| #ifdef DEBUG_HIDAPI |
| SDL_Log("HIDAPI_IsDeviceTypePresent() returning %s for %d\n", result ? "true" : "false", type); |
| #endif |
| return result; |
| } |
| |
| SDL_bool |
| HIDAPI_IsDevicePresent(Uint16 vendor_id, Uint16 product_id, Uint16 version, const char *name) |
| { |
| SDL_HIDAPI_Device *device; |
| SDL_bool supported = SDL_FALSE; |
| SDL_bool result = SDL_FALSE; |
| |
| /* Make sure we're initialized, as this could be called from other drivers during startup */ |
| if (HIDAPI_JoystickInit() < 0) { |
| return SDL_FALSE; |
| } |
| |
| /* Only update the device list for devices we know might be supported. |
| If we did this for every device, it would hit the USB driver too hard and potentially |
| lock up the system. This won't catch devices that we support but can only detect using |
| USB interface details, like Xbox controllers, but hopefully the device list update is |
| responsive enough to catch those. |
| */ |
| supported = HIDAPI_IsDeviceSupported(vendor_id, product_id, version, name); |
| #if defined(SDL_JOYSTICK_HIDAPI_XBOX360) || defined(SDL_JOYSTICK_HIDAPI_XBOXONE) |
| if (!supported && |
| (SDL_strstr(name, "Xbox") || SDL_strstr(name, "X-Box") || SDL_strstr(name, "XBOX"))) { |
| supported = SDL_TRUE; |
| } |
| #endif /* SDL_JOYSTICK_HIDAPI_XBOX360 || SDL_JOYSTICK_HIDAPI_XBOXONE */ |
| if (supported) { |
| if (SDL_AtomicTryLock(&SDL_HIDAPI_spinlock)) { |
| HIDAPI_UpdateDeviceList(); |
| SDL_AtomicUnlock(&SDL_HIDAPI_spinlock); |
| } |
| } |
| |
| /* Note that this isn't a perfect check - there may be multiple devices with 0 VID/PID, |
| or a different name than we have it listed here, etc, but if we support the device |
| and we have something similar in our device list, mark it as present. |
| */ |
| SDL_LockJoysticks(); |
| for (device = SDL_HIDAPI_devices; device; device = device->next) { |
| if (device->driver && |
| HIDAPI_IsEquivalentToDevice(vendor_id, product_id, device)) { |
| result = SDL_TRUE; |
| break; |
| } |
| } |
| SDL_UnlockJoysticks(); |
| |
| #ifdef DEBUG_HIDAPI |
| SDL_Log("HIDAPI_IsDevicePresent() returning %s for 0x%.4x / 0x%.4x\n", result ? "true" : "false", vendor_id, product_id); |
| #endif |
| return result; |
| } |
| |
| SDL_JoystickType |
| HIDAPI_GetJoystickTypeFromGUID(SDL_JoystickGUID guid) |
| { |
| SDL_HIDAPI_Device *device; |
| SDL_JoystickType type = SDL_JOYSTICK_TYPE_UNKNOWN; |
| |
| SDL_LockJoysticks(); |
| for (device = SDL_HIDAPI_devices; device; device = device->next) { |
| if (SDL_memcmp(&guid, &device->guid, sizeof(guid)) == 0) { |
| type = device->joystick_type; |
| break; |
| } |
| } |
| SDL_UnlockJoysticks(); |
| |
| return type; |
| } |
| |
| SDL_GameControllerType |
| HIDAPI_GetGameControllerTypeFromGUID(SDL_JoystickGUID guid) |
| { |
| SDL_HIDAPI_Device *device; |
| SDL_GameControllerType type = SDL_CONTROLLER_TYPE_UNKNOWN; |
| |
| SDL_LockJoysticks(); |
| for (device = SDL_HIDAPI_devices; device; device = device->next) { |
| if (SDL_memcmp(&guid, &device->guid, sizeof(guid)) == 0) { |
| type = device->type; |
| break; |
| } |
| } |
| SDL_UnlockJoysticks(); |
| |
| return type; |
| } |
| |
| static void HIDAPI_JoystickDetect(void) |
| { |
| if (SDL_AtomicTryLock(&SDL_HIDAPI_spinlock)) { |
| Uint32 count = SDL_hid_device_change_count(); |
| if (SDL_HIDAPI_change_count != count) { |
| SDL_HIDAPI_change_count = count; |
| HIDAPI_UpdateDeviceList(); |
| } |
| SDL_AtomicUnlock(&SDL_HIDAPI_spinlock); |
| } |
| } |
| |
| void HIDAPI_UpdateDevices(void) |
| { |
| SDL_HIDAPI_Device *device; |
| |
| SDL_AssertJoysticksLocked(); |
| |
| /* Update the devices, which may change connected joysticks and send events */ |
| |
| /* Prepare the existing device list */ |
| if (SDL_AtomicTryLock(&SDL_HIDAPI_spinlock)) { |
| for (device = SDL_HIDAPI_devices; device; device = device->next) { |
| if (device->parent) { |
| continue; |
| } |
| if (device->driver) { |
| if (SDL_TryLockMutex(device->dev_lock) == 0) { |
| device->updating = SDL_TRUE; |
| device->driver->UpdateDevice(device); |
| device->updating = SDL_FALSE; |
| SDL_UnlockMutex(device->dev_lock); |
| } |
| } |
| } |
| SDL_AtomicUnlock(&SDL_HIDAPI_spinlock); |
| } |
| } |
| |
| static const char *HIDAPI_JoystickGetDeviceName(int device_index) |
| { |
| SDL_HIDAPI_Device *device; |
| const char *name = NULL; |
| |
| device = HIDAPI_GetDeviceByIndex(device_index, NULL); |
| if (device) { |
| /* FIXME: The device could be freed after this name is returned... */ |
| name = device->name; |
| } |
| |
| return name; |
| } |
| |
| static const char *HIDAPI_JoystickGetDevicePath(int device_index) |
| { |
| SDL_HIDAPI_Device *device; |
| const char *path = NULL; |
| |
| device = HIDAPI_GetDeviceByIndex(device_index, NULL); |
| if (device) { |
| /* FIXME: The device could be freed after this path is returned... */ |
| path = device->path; |
| } |
| |
| return path; |
| } |
| |
| static int HIDAPI_JoystickGetDevicePlayerIndex(int device_index) |
| { |
| SDL_HIDAPI_Device *device; |
| SDL_JoystickID instance_id; |
| int player_index = -1; |
| |
| device = HIDAPI_GetDeviceByIndex(device_index, &instance_id); |
| if (device) { |
| player_index = device->driver->GetDevicePlayerIndex(device, instance_id); |
| } |
| |
| return player_index; |
| } |
| |
| static void HIDAPI_JoystickSetDevicePlayerIndex(int device_index, int player_index) |
| { |
| SDL_HIDAPI_Device *device; |
| SDL_JoystickID instance_id; |
| |
| device = HIDAPI_GetDeviceByIndex(device_index, &instance_id); |
| if (device) { |
| device->driver->SetDevicePlayerIndex(device, instance_id, player_index); |
| } |
| } |
| |
| static SDL_JoystickGUID HIDAPI_JoystickGetDeviceGUID(int device_index) |
| { |
| SDL_HIDAPI_Device *device; |
| SDL_JoystickGUID guid; |
| |
| device = HIDAPI_GetDeviceByIndex(device_index, NULL); |
| if (device) { |
| SDL_memcpy(&guid, &device->guid, sizeof(guid)); |
| } else { |
| SDL_zero(guid); |
| } |
| |
| return guid; |
| } |
| |
| static SDL_JoystickID HIDAPI_JoystickGetDeviceInstanceID(int device_index) |
| { |
| SDL_JoystickID joystickID = -1; |
| HIDAPI_GetDeviceByIndex(device_index, &joystickID); |
| return joystickID; |
| } |
| |
| static int HIDAPI_JoystickOpen(SDL_Joystick *joystick, int device_index) |
| { |
| SDL_JoystickID joystickID = -1; |
| SDL_HIDAPI_Device *device = HIDAPI_GetDeviceByIndex(device_index, &joystickID); |
| struct joystick_hwdata *hwdata; |
| |
| SDL_AssertJoysticksLocked(); |
| |
| if (device == NULL || !device->driver) { |
| /* This should never happen - validated before being called */ |
| return SDL_SetError("Couldn't find HIDAPI device at index %d\n", device_index); |
| } |
| |
| hwdata = (struct joystick_hwdata *)SDL_calloc(1, sizeof(*hwdata)); |
| if (hwdata == NULL) { |
| return SDL_OutOfMemory(); |
| } |
| hwdata->device = device; |
| |
| /* Process any pending reports before opening the device */ |
| SDL_LockMutex(device->dev_lock); |
| device->updating = SDL_TRUE; |
| device->driver->UpdateDevice(device); |
| device->updating = SDL_FALSE; |
| SDL_UnlockMutex(device->dev_lock); |
| |
| if (!device->driver->OpenJoystick(device, joystick)) { |
| /* The open failed, mark this device as disconnected and update devices */ |
| HIDAPI_JoystickDisconnected(device, joystickID); |
| SDL_free(hwdata); |
| return -1; |
| } |
| |
| if (!joystick->serial && device->serial) { |
| joystick->serial = SDL_strdup(device->serial); |
| } |
| |
| joystick->hwdata = hwdata; |
| return 0; |
| } |
| |
| static int HIDAPI_JoystickRumble(SDL_Joystick *joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble) |
| { |
| int result; |
| |
| SDL_AssertJoysticksLocked(); |
| |
| if (joystick->hwdata) { |
| SDL_HIDAPI_Device *device = joystick->hwdata->device; |
| |
| result = device->driver->RumbleJoystick(device, joystick, low_frequency_rumble, high_frequency_rumble); |
| } else { |
| result = SDL_SetError("Rumble failed, device disconnected"); |
| } |
| |
| return result; |
| } |
| |
| static int HIDAPI_JoystickRumbleTriggers(SDL_Joystick *joystick, Uint16 left_rumble, Uint16 right_rumble) |
| { |
| int result; |
| |
| SDL_AssertJoysticksLocked(); |
| |
| if (joystick->hwdata) { |
| SDL_HIDAPI_Device *device = joystick->hwdata->device; |
| |
| result = device->driver->RumbleJoystickTriggers(device, joystick, left_rumble, right_rumble); |
| } else { |
| result = SDL_SetError("Rumble failed, device disconnected"); |
| } |
| |
| return result; |
| } |
| |
| static Uint32 HIDAPI_JoystickGetCapabilities(SDL_Joystick *joystick) |
| { |
| Uint32 result = 0; |
| |
| SDL_AssertJoysticksLocked(); |
| |
| if (joystick->hwdata) { |
| SDL_HIDAPI_Device *device = joystick->hwdata->device; |
| |
| result = device->driver->GetJoystickCapabilities(device, joystick); |
| } |
| |
| return result; |
| } |
| |
| static int HIDAPI_JoystickSetLED(SDL_Joystick *joystick, Uint8 red, Uint8 green, Uint8 blue) |
| { |
| int result; |
| |
| SDL_AssertJoysticksLocked(); |
| |
| if (joystick->hwdata) { |
| SDL_HIDAPI_Device *device = joystick->hwdata->device; |
| |
| result = device->driver->SetJoystickLED(device, joystick, red, green, blue); |
| } else { |
| result = SDL_SetError("SetLED failed, device disconnected"); |
| } |
| |
| return result; |
| } |
| |
| static int HIDAPI_JoystickSendEffect(SDL_Joystick *joystick, const void *data, int size) |
| { |
| int result; |
| |
| SDL_AssertJoysticksLocked(); |
| |
| if (joystick->hwdata) { |
| SDL_HIDAPI_Device *device = joystick->hwdata->device; |
| |
| result = device->driver->SendJoystickEffect(device, joystick, data, size); |
| } else { |
| result = SDL_SetError("SendEffect failed, device disconnected"); |
| } |
| |
| return result; |
| } |
| |
| static int HIDAPI_JoystickSetSensorsEnabled(SDL_Joystick *joystick, SDL_bool enabled) |
| { |
| int result; |
| |
| SDL_AssertJoysticksLocked(); |
| |
| if (joystick->hwdata) { |
| SDL_HIDAPI_Device *device = joystick->hwdata->device; |
| |
| result = device->driver->SetJoystickSensorsEnabled(device, joystick, enabled); |
| } else { |
| result = SDL_SetError("SetSensorsEnabled failed, device disconnected"); |
| } |
| |
| return result; |
| } |
| |
| static void HIDAPI_JoystickUpdate(SDL_Joystick *joystick) |
| { |
| /* This is handled in SDL_HIDAPI_UpdateDevices() */ |
| } |
| |
| static void HIDAPI_JoystickClose(SDL_Joystick *joystick) SDL_NO_THREAD_SAFETY_ANALYSIS /* We unlock the device lock so rumble can complete */ |
| { |
| SDL_AssertJoysticksLocked(); |
| |
| if (joystick->hwdata) { |
| SDL_HIDAPI_Device *device = joystick->hwdata->device; |
| int i; |
| |
| /* Wait up to 30 ms for pending rumble to complete */ |
| if (device->updating) { |
| /* Unlock the device so rumble can complete */ |
| SDL_UnlockMutex(device->dev_lock); |
| } |
| for (i = 0; i < 3; ++i) { |
| if (SDL_AtomicGet(&device->rumble_pending) > 0) { |
| SDL_Delay(10); |
| } |
| } |
| if (device->updating) { |
| /* Relock the device */ |
| SDL_LockMutex(device->dev_lock); |
| } |
| |
| device->driver->CloseJoystick(device, joystick); |
| |
| SDL_free(joystick->hwdata); |
| joystick->hwdata = NULL; |
| } |
| } |
| |
| static void HIDAPI_JoystickQuit(void) |
| { |
| int i; |
| |
| SDL_AssertJoysticksLocked(); |
| |
| shutting_down = SDL_TRUE; |
| |
| SDL_HIDAPI_QuitRumble(); |
| |
| while (SDL_HIDAPI_devices) { |
| SDL_HIDAPI_Device *device = SDL_HIDAPI_devices; |
| if (device->parent) { |
| /* When a child device goes away, so does the parent */ |
| device = device->parent; |
| for (i = 0; i < device->num_children; ++i) { |
| HIDAPI_DelDevice(device->children[i]); |
| } |
| HIDAPI_DelDevice(device); |
| } else { |
| HIDAPI_DelDevice(device); |
| } |
| } |
| |
| /* Make sure the drivers cleaned up properly */ |
| SDL_assert(SDL_HIDAPI_numjoysticks == 0); |
| |
| for (i = 0; i < SDL_arraysize(SDL_HIDAPI_drivers); ++i) { |
| SDL_HIDAPI_DeviceDriver *driver = SDL_HIDAPI_drivers[i]; |
| driver->UnregisterHints(SDL_HIDAPIDriverHintChanged, driver); |
| } |
| SDL_DelHintCallback(SDL_HINT_JOYSTICK_HIDAPI_COMBINE_JOY_CONS, |
| SDL_HIDAPIDriverHintChanged, NULL); |
| SDL_DelHintCallback(SDL_HINT_JOYSTICK_HIDAPI, |
| SDL_HIDAPIDriverHintChanged, NULL); |
| |
| SDL_hid_exit(); |
| |
| SDL_HIDAPI_change_count = 0; |
| shutting_down = SDL_FALSE; |
| initialized = SDL_FALSE; |
| } |
| |
| static SDL_bool HIDAPI_JoystickGetGamepadMapping(int device_index, SDL_GamepadMapping *out) |
| { |
| return SDL_FALSE; |
| } |
| |
| SDL_JoystickDriver SDL_HIDAPI_JoystickDriver = { |
| HIDAPI_JoystickInit, |
| HIDAPI_JoystickGetCount, |
| HIDAPI_JoystickDetect, |
| HIDAPI_JoystickGetDeviceName, |
| HIDAPI_JoystickGetDevicePath, |
| HIDAPI_JoystickGetDevicePlayerIndex, |
| HIDAPI_JoystickSetDevicePlayerIndex, |
| HIDAPI_JoystickGetDeviceGUID, |
| HIDAPI_JoystickGetDeviceInstanceID, |
| HIDAPI_JoystickOpen, |
| HIDAPI_JoystickRumble, |
| HIDAPI_JoystickRumbleTriggers, |
| HIDAPI_JoystickGetCapabilities, |
| HIDAPI_JoystickSetLED, |
| HIDAPI_JoystickSendEffect, |
| HIDAPI_JoystickSetSensorsEnabled, |
| HIDAPI_JoystickUpdate, |
| HIDAPI_JoystickClose, |
| HIDAPI_JoystickQuit, |
| HIDAPI_JoystickGetGamepadMapping |
| }; |
| |
| #endif /* SDL_JOYSTICK_HIDAPI */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |