xinput: Detect and setup HID gamepads.

dlls/xinput1_1/Makefile.in

 MODULE    = xinput1_1.dll
 PARENTSRC = ../xinput1_3
+DELAYIMPORTS = hid setupapi
 
 C_SRCS = \
+	hid.c \
 	xinput_main.c
 
 RC_SRCS = version.rc

dlls/xinput1_2/Makefile.in

 MODULE    = xinput1_2.dll
 PARENTSRC = ../xinput1_3
+DELAYIMPORTS = hid setupapi
 
 C_SRCS = \
+	hid.c \
 	xinput_main.c
 
 RC_SRCS = version.rc

dlls/xinput1_3/Makefile.in

 MODULE    = xinput1_3.dll
 IMPORTLIB = xinput
+DELAYIMPORTS = hid setupapi
 
 C_SRCS = \
+	hid.c \
 	xinput_main.c
 
 RC_SRCS = version.rc

dlls/xinput1_3/xinput_main.c

@@ -28,24 +28,26 @@
 #include "winerror.h"
 
 #include "xinput.h"
+#include "xinput_private.h"
 
 /* Not defined in the headers, used only by XInputGetStateEx */
 #define XINPUT_GAMEPAD_GUIDE 0x0400
 
 WINE_DEFAULT_DEBUG_CHANNEL(xinput);
 
-struct
-{
-    BOOL connected;
-} controllers[XUSER_MAX_COUNT];
+xinput_controller controllers[XUSER_MAX_COUNT];
 
 BOOL WINAPI DllMain(HINSTANCE inst, DWORD reason, LPVOID reserved)
 {
     switch(reason)
     {
-    case DLL_PROCESS_ATTACH:
-        DisableThreadLibraryCalls(inst);
-        break;
+        case DLL_PROCESS_ATTACH:
+            DisableThreadLibraryCalls(inst);
+            break;
+        case DLL_PROCESS_DETACH:
+            if (reserved) break;
+            HID_destroy_gamepads(controllers);
+            break;
     }
     return TRUE;
 }
@@ -121,17 +123,20 @@ DWORD WINAPI XInputGetKeystroke(DWORD index, DWORD reserved, PXINPUT_KEYSTROKE k
 
 DWORD WINAPI XInputGetCapabilities(DWORD index, DWORD flags, XINPUT_CAPABILITIES* capabilities)
 {
-    static int warn_once;
+    TRACE("(index %u, flags 0x%x, capabilities %p)\n", index, flags, capabilities);
 
-    if (!warn_once++)
-        FIXME("(index %u, flags 0x%x, capabilities %p) Stub!\n", index, flags, capabilities);
+    HID_find_gamepads(controllers);
 
     if (index >= XUSER_MAX_COUNT)
         return ERROR_BAD_ARGUMENTS;
     if (!controllers[index].connected)
         return ERROR_DEVICE_NOT_CONNECTED;
+    if (flags & XINPUT_FLAG_GAMEPAD && controllers[index].caps.SubType != XINPUT_DEVSUBTYPE_GAMEPAD)
+        return ERROR_DEVICE_NOT_CONNECTED;
 
-    return ERROR_NOT_SUPPORTED;
+    memcpy(capabilities, &controllers[index].caps, sizeof(*capabilities));
+
+    return ERROR_SUCCESS;
 }
 
 DWORD WINAPI XInputGetDSoundAudioDeviceGuids(DWORD index, GUID* render_guid, GUID* capture_guid)

dlls/xinput1_3/xinput_private.h

+/*
+ * The Wine project - Xinput Joystick Library
+ * Copyright 2018 Aric Stewart
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+typedef struct _xinput_controller
+{
+    BOOL connected;
+    XINPUT_CAPABILITIES caps;
+    void *platform_private;
+    XINPUT_STATE state;
+} xinput_controller;
+
+
+void HID_find_gamepads(xinput_controller *devices) DECLSPEC_HIDDEN;
+void HID_destroy_gamepads(xinput_controller *devices) DECLSPEC_HIDDEN;

dlls/xinput1_4/Makefile.in

 MODULE    = xinput1_4.dll
 PARENTSRC = ../xinput1_3
+DELAYIMPORTS = hid setupapi
 
 C_SRCS = \
+	hid.c \
 	xinput_main.c
 
 RC_SRCS = version.rc

dlls/xinput9_1_0/Makefile.in

 MODULE    = xinput9_1_0.dll
 PARENTSRC = ../xinput1_3
+DELAYIMPORTS = hid setupapi
 
 C_SRCS = \
+	hid.c \
 	xinput_main.c
 
 RC_SRCS = version.rc