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Only open HID devices that might have a HIDAPI driver available

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This prevents an OS prompt for every connected device when running on Android
This commit is contained in:
Sam Lantinga
2022-10-07 11:29:49 -07:00
parent 31991ab851
commit 33050fea39
4 changed files with 51 additions and 49 deletions
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94
src/joystick/hidapi/SDL_hidapijoystick.c
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@@ -359,59 +359,61 @@ HIDAPI_SetupDeviceDriver(SDL_HIDAPI_Device *device, SDL_bool *removed)
return; /* Already setup */
}
/* Make sure we can open the device and leave it open for the driver */
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
*/
SDL_HIDAPI_Device *curr;
SDL_hid_device *dev;
char *path;
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
*/
SDL_HIDAPI_Device *curr;
SDL_hid_device *dev;
char *path;
SDL_AssertJoysticksLocked();
path = SDL_strdup(device->path);
SDL_UnlockJoysticks();
dev = SDL_hid_open_path(path, 0);
SDL_LockJoysticks();
SDL_free(path);
SDL_AssertJoysticksLocked();
path = SDL_strdup(device->path);
SDL_UnlockJoysticks();
dev = SDL_hid_open_path(path, 0);
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) {
continue;
}
if (!curr) {
*removed = SDL_TRUE;
if (dev) {
SDL_hid_close(dev);
/* Make sure the device didn't get removed while opening the HID path */
for (curr = SDL_HIDAPI_devices; curr && curr != device; curr = curr->next) {
continue;
}
return;
if (!curr) {
*removed = SDL_TRUE;
if (dev) {
SDL_hid_close(dev);
}
return;
}
if (!dev) {
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;
}
if (!dev) {
SDL_LogDebug(SDL_LOG_CATEGORY_INPUT,
"HIDAPI_SetupDeviceDriver() couldn't open %s: %s\n",
device->path, SDL_GetError());
return;
device->driver = HIDAPI_GetDeviceDriver(device);
/* Initialize the device, which may cause a connected event */
if (device->driver && !device->driver->InitDevice(device)) {
HIDAPI_CleanupDeviceDriver(device);
}
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;
if (!device->driver && device->dev) {
/* No driver claimed this device, go ahead and close it */
SDL_hid_close(device->dev);
device->dev = NULL;
}
}
}