Commit 3527b49459ab730a09cb646361ae7528a26a2cf8
2021-01-21T22:30:34
Fixed initializing the Nyko and EVORETRO GameCube adaptors This requires root on most Linux distributions, as we have to directly send USB messages to the devices to enable input reports.
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diff --git a/src/hidapi/SDL_hidapi.c b/src/hidapi/SDL_hidapi.c
index d9ad45f..670a517 100644
--- a/src/hidapi/SDL_hidapi.c
+++ b/src/hidapi/SDL_hidapi.c
@@ -955,6 +955,57 @@ HID_API_EXPORT const wchar_t* HID_API_CALL hid_error(hid_device *device)
return wrapper->backend->hid_error(wrapper->device);
}
+/* This is needed to enable input for Nyko and EVORETRO GameCube adaptors */
+void SDL_EnableGameCubeAdaptors(void)
+{
+#ifdef SDL_LIBUSB_DYNAMIC
+ libusb_context *usb_context = NULL;
+ libusb_device **devs = NULL;
+ libusb_device_handle *handle = NULL;
+ struct libusb_device_descriptor desc;
+ ssize_t i, num_devs;
+ int kernel_detached = 0;
+
+ if (libusb_init(&usb_context) == 0) {
+ num_devs = libusb_get_device_list(usb_context, &devs);
+ for (i = 0; i < num_devs; ++i) {
+ if (libusb_get_device_descriptor(devs[i], &desc) != 0) {
+ continue;
+ }
+
+ if (desc.idVendor != 0x057e || desc.idProduct != 0x0337) {
+ continue;
+ }
+
+ if (libusb_open(devs[i], &handle) != 0) {
+ continue;
+ }
+
+ if (libusb_kernel_driver_active(handle, 0)) {
+ if (libusb_detach_kernel_driver(handle, 0) == 0) {
+ kernel_detached = 1;
+ }
+ }
+
+ if (libusb_claim_interface(handle, 0) == 0) {
+ libusb_control_transfer(handle, 0x21, 11, 0x0001, 0, NULL, 0, 1000);
+ libusb_release_interface(handle, 0);
+ }
+
+ if (kernel_detached) {
+ libusb_attach_kernel_driver(handle, 0);
+ }
+
+ libusb_close(handle);
+ }
+
+ libusb_free_device_list(devs, 1);
+
+ libusb_exit(usb_context);
+ }
+#endif /* SDL_LIBUSB_DYNAMIC */
+}
+
#endif /* SDL_JOYSTICK_HIDAPI */
/* vi: set sts=4 ts=4 sw=4 expandtab: */
diff --git a/src/hidapi/SDL_hidapi.h b/src/hidapi/SDL_hidapi.h
new file mode 100644
index 0000000..305a00a
--- /dev/null
+++ b/src/hidapi/SDL_hidapi.h
@@ -0,0 +1,28 @@
+/*
+ Simple DirectMedia Layer
+ Copyright (C) 1997-2021 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.
+*/
+
+#ifdef SDL_JOYSTICK_HIDAPI
+
+extern void SDL_EnableGameCubeAdaptors(void);
+
+#endif /* SDL_JOYSTICK_HIDAPI */
+
+/* vi: set sts=4 ts=4 sw=4 expandtab: */
diff --git a/src/joystick/hidapi/SDL_hidapi_gamecube.c b/src/joystick/hidapi/SDL_hidapi_gamecube.c
index 6780a0f..3f275c8 100644
--- a/src/joystick/hidapi/SDL_hidapi_gamecube.c
+++ b/src/joystick/hidapi/SDL_hidapi_gamecube.c
@@ -32,6 +32,7 @@
#include "../SDL_sysjoystick.h"
#include "SDL_hidapijoystick_c.h"
#include "SDL_hidapi_rumble.h"
+#include "../../hidapi/SDL_hidapi.h"
#ifdef SDL_JOYSTICK_HIDAPI_GAMECUBE
@@ -129,6 +130,8 @@ HIDAPI_DriverGameCube_InitDevice(SDL_HIDAPI_Device *device)
Uint8 initMagic = 0x13;
Uint8 rumbleMagic = 0x11;
+ SDL_EnableGameCubeAdaptors();
+
ctx = (SDL_DriverGameCube_Context *)SDL_calloc(1, sizeof(*ctx));
if (!ctx) {
SDL_OutOfMemory();