| /* |
| 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__) |
| #include "../windows/SDL_rawinputjoystick_c.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_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_DriverSwitch, |
| #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 Uint32 SDL_HIDAPI_change_count = 0; |
| static SDL_HIDAPI_Device *SDL_HIDAPI_devices; |
| static int SDL_HIDAPI_numjoysticks = 0; |
| static SDL_bool initialized = SDL_FALSE; |
| static SDL_bool shutting_down = SDL_FALSE; |
| |
| void |
| HIDAPI_DumpPacket(const char *prefix, 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; |
| |
| buffer = (char *)SDL_malloc(length); |
| SDL_snprintf(buffer, length, prefix, size); |
| for (i = start; i < start+amount; ++i) { |
| if ((i % 8) == 0) { |
| SDL_snprintf(&buffer[SDL_strlen(buffer)], length - SDL_strlen(buffer), "\n%.2d: ", i); |
| } |
| SDL_snprintf(&buffer[SDL_strlen(buffer)], length - SDL_strlen(buffer), " 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_JoystickDetect(void); |
| static void HIDAPI_JoystickClose(SDL_Joystick *joystick); |
| |
| static SDL_bool |
| HIDAPI_IsDeviceSupported(Uint16 vendor_id, Uint16 product_id, Uint16 version, const char *name) |
| { |
| int i; |
| SDL_GameControllerType type = SDL_GetJoystickGameControllerType(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(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; |
| SDL_GameControllerType type; |
| SDL_JoystickGUID check_guid; |
| |
| /* Make sure we have a generic GUID here, otherwise if we pass a HIDAPI |
| guid, this call will create a game controller mapping for the device. |
| */ |
| check_guid = device->guid; |
| check_guid.data[14] = 0; |
| if (SDL_ShouldIgnoreJoystick(device->name, check_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; |
| } |
| } |
| |
| type = SDL_GetJoystickGameControllerType(device->name, device->vendor_id, device->product_id, device->interface_number, device->interface_class, device->interface_subclass, device->interface_protocol); |
| for (i = 0; i < SDL_arraysize(SDL_HIDAPI_drivers); ++i) { |
| SDL_HIDAPI_DeviceDriver *driver = SDL_HIDAPI_drivers[i]; |
| if (driver->enabled && driver->IsSupportedDevice(device->name, 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_HIDAPI_devices; |
| while (device) { |
| if (device->driver) { |
| if (device_index < device->num_joysticks) { |
| if (pJoystickID) { |
| *pJoystickID = device->joysticks[device_index]; |
| } |
| return device; |
| } |
| device_index -= device->num_joysticks; |
| } |
| device = device->next; |
| } |
| return NULL; |
| } |
| |
| static SDL_HIDAPI_Device * |
| HIDAPI_GetJoystickByInfo(const char *path, Uint16 vendor_id, Uint16 product_id) |
| { |
| SDL_HIDAPI_Device *device = SDL_HIDAPI_devices; |
| while (device) { |
| if (device->vendor_id == vendor_id && device->product_id == product_id && |
| SDL_strcmp(device->path, path) == 0) { |
| break; |
| } |
| device = device->next; |
| } |
| return device; |
| } |
| |
| static void |
| HIDAPI_SetupDeviceDriver(SDL_HIDAPI_Device *device) |
| { |
| if (device->driver) { |
| return; /* Already setup */ |
| } |
| |
| device->driver = HIDAPI_GetDeviceDriver(device); |
| if (device->driver) { |
| const char *name = device->driver->GetDeviceName(device->vendor_id, device->product_id); |
| if (name) { |
| SDL_free(device->name); |
| device->name = SDL_strdup(name); |
| } |
| } |
| |
| /* Initialize the device, which may cause a connected event */ |
| if (device->driver && !device->driver->InitDevice(device)) { |
| device->driver = NULL; |
| } |
| } |
| |
| 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; |
| } |
| |
| static void SDLCALL |
| SDL_HIDAPIDriverHintChanged(void *userdata, const char *name, const char *oldValue, const char *hint) |
| { |
| int i; |
| SDL_HIDAPI_Device *device; |
| SDL_bool enabled = SDL_GetStringBoolean(hint, SDL_TRUE); |
| |
| if (SDL_strcmp(name, SDL_HINT_JOYSTICK_HIDAPI) == 0) { |
| for (i = 0; i < SDL_arraysize(SDL_HIDAPI_drivers); ++i) { |
| SDL_HIDAPI_DeviceDriver *driver = SDL_HIDAPI_drivers[i]; |
| driver->enabled = SDL_GetHintBoolean(driver->hint, enabled); |
| } |
| } else { |
| for (i = 0; i < SDL_arraysize(SDL_HIDAPI_drivers); ++i) { |
| SDL_HIDAPI_DeviceDriver *driver = SDL_HIDAPI_drivers[i]; |
| if (SDL_strcmp(name, driver->hint) == 0) { |
| driver->enabled = enabled; |
| } |
| } |
| } |
| |
| SDL_HIDAPI_numdrivers = 0; |
| for (i = 0; i < SDL_arraysize(SDL_HIDAPI_drivers); ++i) { |
| SDL_HIDAPI_DeviceDriver *driver = SDL_HIDAPI_drivers[i]; |
| if (driver->enabled) { |
| ++SDL_HIDAPI_numdrivers; |
| } |
| } |
| |
| /* Update device list if driver availability changes */ |
| SDL_LockJoysticks(); |
| |
| for (device = SDL_HIDAPI_devices; device; device = device->next) { |
| if (device->driver && !device->driver->enabled) { |
| HIDAPI_CleanupDeviceDriver(device); |
| } |
| HIDAPI_SetupDeviceDriver(device); |
| } |
| |
| SDL_UnlockJoysticks(); |
| } |
| |
| 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 (access("/.flatpak-info", F_OK) == 0 |
| || access("/run/host/container-manager", F_OK) == 0) { |
| /* Explicitly check `/.flatpak-info` because, for old versions of |
| * Flatpak, this was the only available way to tell if we were in |
| * a Flatpak container. */ |
| 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]; |
| SDL_AddHintCallback(driver->hint, SDL_HIDAPIDriverHintChanged, NULL); |
| } |
| SDL_AddHintCallback(SDL_HINT_JOYSTICK_HIDAPI, |
| SDL_HIDAPIDriverHintChanged, NULL); |
| HIDAPI_JoystickDetect(); |
| HIDAPI_UpdateDevices(); |
| |
| initialized = SDL_TRUE; |
| |
| return 0; |
| } |
| |
| SDL_bool |
| HIDAPI_JoystickConnected(SDL_HIDAPI_Device *device, SDL_JoystickID *pJoystickID) |
| { |
| SDL_JoystickID joystickID; |
| SDL_JoystickID *joysticks = (SDL_JoystickID *)SDL_realloc(device->joysticks, (device->num_joysticks + 1)*sizeof(*device->joysticks)); |
| if (!joysticks) { |
| return SDL_FALSE; |
| } |
| |
| joystickID = SDL_GetNextJoystickInstanceID(); |
| device->joysticks = joysticks; |
| device->joysticks[device->num_joysticks++] = 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, size; |
| |
| for (i = 0; i < device->num_joysticks; ++i) { |
| if (device->joysticks[i] == joystickID) { |
| SDL_Joystick *joystick = SDL_JoystickFromInstanceID(joystickID); |
| if (joystick) { |
| HIDAPI_JoystickClose(joystick); |
| } |
| |
| size = (device->num_joysticks - i - 1) * sizeof(SDL_JoystickID); |
| SDL_memmove(&device->joysticks[i], &device->joysticks[i+1], size); |
| --device->num_joysticks; |
| |
| --SDL_HIDAPI_numjoysticks; |
| if (device->num_joysticks == 0) { |
| SDL_free(device->joysticks); |
| device->joysticks = NULL; |
| } |
| |
| if (!shutting_down) { |
| SDL_PrivateJoystickRemoved(joystickID); |
| } |
| return; |
| } |
| } |
| } |
| |
| 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) { |
| 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 void |
| HIDAPI_AddDevice(struct SDL_hid_device_info *info) |
| { |
| SDL_HIDAPI_Device *device; |
| SDL_HIDAPI_Device *curr, *last = NULL; |
| |
| for (curr = SDL_HIDAPI_devices, last = NULL; curr; last = curr, curr = curr->next) { |
| continue; |
| } |
| |
| device = (SDL_HIDAPI_Device *)SDL_calloc(1, sizeof(*device)); |
| if (!device) { |
| return; |
| } |
| device->path = SDL_strdup(info->path); |
| if (!device->path) { |
| SDL_free(device); |
| return; |
| } |
| 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; |
| { |
| /* FIXME: Is there any way to tell whether this is a Bluetooth device? */ |
| const Uint16 vendor = device->vendor_id; |
| const Uint16 product = device->product_id; |
| const Uint16 version = device->version; |
| Uint16 *guid16 = (Uint16 *)device->guid.data; |
| |
| *guid16++ = SDL_SwapLE16(SDL_HARDWARE_BUS_USB); |
| *guid16++ = 0; |
| *guid16++ = SDL_SwapLE16(vendor); |
| *guid16++ = 0; |
| *guid16++ = SDL_SwapLE16(product); |
| *guid16++ = 0; |
| *guid16++ = SDL_SwapLE16(version); |
| *guid16++ = 0; |
| |
| /* Note that this is a HIDAPI device for special handling elsewhere */ |
| device->guid.data[14] = 'h'; |
| device->guid.data[15] = 0; |
| } |
| 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 (SDL_strncmp(device->name, "0x", 2) == 0) { |
| /* Couldn't find a controller name, try to give it one based on device type */ |
| const char *name = NULL; |
| |
| switch (SDL_GetJoystickGameControllerType(NULL, device->vendor_id, device->product_id, device->interface_number, device->interface_class, device->interface_subclass, device->interface_protocol)) { |
| case SDL_CONTROLLER_TYPE_XBOX360: |
| name = "Xbox 360 Controller"; |
| break; |
| case SDL_CONTROLLER_TYPE_XBOXONE: |
| name = "Xbox One Controller"; |
| break; |
| case SDL_CONTROLLER_TYPE_PS3: |
| name = "PS3 Controller"; |
| break; |
| case SDL_CONTROLLER_TYPE_PS4: |
| name = "PS4 Controller"; |
| break; |
| case SDL_CONTROLLER_TYPE_PS5: |
| name = "PS5 Controller"; |
| break; |
| case SDL_CONTROLLER_TYPE_NINTENDO_SWITCH_PRO: |
| name = "Nintendo Switch Pro Controller"; |
| break; |
| default: |
| break; |
| } |
| |
| if (name) { |
| SDL_free(device->name); |
| device->name = SDL_strdup(name); |
| } |
| } |
| |
| 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; |
| } |
| } |
| |
| /* Add it to the list */ |
| if (last) { |
| last->next = device; |
| } else { |
| SDL_HIDAPI_devices = device; |
| } |
| |
| HIDAPI_SetupDeviceDriver(device); |
| |
| #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->hint : "NONE", device->driver && device->driver->enabled ? "ENABLED" : "DISABLED"); |
| #endif |
| } |
| |
| |
| static void |
| HIDAPI_DelDevice(SDL_HIDAPI_Device *device) |
| { |
| SDL_HIDAPI_Device *curr, *last; |
| |
| #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->hint : "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); |
| } |
| |
| SDL_DestroyMutex(device->dev_lock); |
| SDL_free(device->serial); |
| SDL_free(device->name); |
| SDL_free(device->path); |
| SDL_free(device); |
| return; |
| } |
| } |
| } |
| |
| static void |
| HIDAPI_UpdateDeviceList(void) |
| { |
| SDL_HIDAPI_Device *device; |
| struct SDL_hid_device_info *devs, *info; |
| |
| SDL_LockJoysticks(); |
| |
| /* Prepare the existing device list */ |
| device = SDL_HIDAPI_devices; |
| while (device) { |
| device->seen = SDL_FALSE; |
| device = device->next; |
| } |
| |
| /* 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); |
| } |
| } |
| SDL_hid_free_enumeration(devs); |
| } |
| } |
| |
| /* Remove any devices that weren't seen or have been disconnected due to read errors */ |
| device = SDL_HIDAPI_devices; |
| while (device) { |
| SDL_HIDAPI_Device *next = device->next; |
| |
| if (!device->seen || |
| (device->driver && device->num_joysticks == 0 && !device->dev)) { |
| HIDAPI_DelDevice(device); |
| } |
| device = next; |
| } |
| |
| 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 && |
| SDL_GetJoystickGameControllerType(device->name, device->vendor_id, device->product_id, device->interface_number, device->interface_class, device->interface_subclass, device->interface_protocol) == 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) { |
| SDL_GameControllerType type = SDL_GetJoystickGameControllerType(device->name, device->vendor_id, device->product_id, device->interface_number, device->interface_class, device->interface_subclass, device->interface_protocol); |
| if (type == SDL_CONTROLLER_TYPE_XBOX360 || type == SDL_CONTROLLER_TYPE_XBOXONE) { |
| 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(); |
| device = SDL_HIDAPI_devices; |
| while (device) { |
| if (device->driver && |
| SDL_GetJoystickGameControllerType(device->name, device->vendor_id, device->product_id, device->interface_number, device->interface_class, device->interface_subclass, device->interface_protocol) == type) { |
| result = SDL_TRUE; |
| break; |
| } |
| device = device->next; |
| } |
| 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(); |
| device = SDL_HIDAPI_devices; |
| while (device) { |
| if (device->driver && |
| HIDAPI_IsEquivalentToDevice(vendor_id, product_id, device)) { |
| result = SDL_TRUE; |
| break; |
| } |
| device = device->next; |
| } |
| 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; |
| } |
| |
| static void |
| HIDAPI_JoystickDetect(void) |
| { |
| if (SDL_AtomicTryLock(&SDL_HIDAPI_spinlock)) { |
| Uint32 count = SDL_hid_device_change_count(); |
| if (SDL_HIDAPI_change_count != count) { |
| HIDAPI_UpdateDeviceList(); |
| SDL_HIDAPI_change_count = count; |
| } |
| SDL_AtomicUnlock(&SDL_HIDAPI_spinlock); |
| } |
| } |
| |
| void |
| HIDAPI_UpdateDevices(void) |
| { |
| SDL_HIDAPI_Device *device; |
| |
| /* Update the devices, which may change connected joysticks and send events */ |
| |
| /* Prepare the existing device list */ |
| if (SDL_AtomicTryLock(&SDL_HIDAPI_spinlock)) { |
| device = SDL_HIDAPI_devices; |
| while (device) { |
| 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); |
| } |
| } |
| device = device->next; |
| } |
| 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 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; |
| SDL_HIDAPI_Device *device = HIDAPI_GetDeviceByIndex(device_index, &joystickID); |
| struct joystick_hwdata *hwdata; |
| |
| hwdata = (struct joystick_hwdata *)SDL_calloc(1, sizeof(*hwdata)); |
| if (!hwdata) { |
| return SDL_OutOfMemory(); |
| } |
| hwdata->device = device; |
| |
| if (!device->driver->OpenJoystick(device, joystick)) { |
| 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; |
| |
| 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; |
| |
| 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; |
| |
| 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; |
| |
| 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; |
| |
| 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; |
| |
| 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) |
| { |
| 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; |
| |
| shutting_down = SDL_TRUE; |
| |
| SDL_HIDAPI_QuitRumble(); |
| |
| while (SDL_HIDAPI_devices) { |
| HIDAPI_DelDevice(SDL_HIDAPI_devices); |
| } |
| |
| /* 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]; |
| SDL_DelHintCallback(driver->hint, SDL_HIDAPIDriverHintChanged, NULL); |
| } |
| SDL_DelHintCallback(SDL_HINT_JOYSTICK_HIDAPI, |
| SDL_HIDAPIDriverHintChanged, NULL); |
| |
| SDL_hid_exit(); |
| |
| 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_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: */ |
