ezusb driver and optional devicepath.dat

ModeSwitch/C/src/CMakeLists.txt

@@ -7,11 +7,4 @@ set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -static-libstdc++ -static-libgcc")
 include_directories(${popn_modeswitch_SOURCE_DIR})
 link_directories(${PROJECT_SOURCE_DIR}/include)
 
-# STATIC LINK HID
-find_library(HIDDLL NAMES hid PATHS ${CMAKE_SOURCE_DIR}/lib)
-message(STATUS "find_library for hid returned ${HIDDLL}")
-add_library(hid MODULE IMPORTED)
-set_property(TARGET hid PROPERTY IMPORTED_LOCATION "${HIDDLL}")
-
-add_executable(modeswitch modeswitch.cpp)
-target_link_libraries(modeswitch hid)
+add_executable(modeswitch modeswitch.cpp)

ModeSwitch/C/src/modeswitch.cpp

@@ -1,13 +1,61 @@
 /* TO BE COMPILED WITH MINGW */
 /* Visual C++ compilation didn't work for me on the BemaniPC (invalid win32 application) */
+#define WINVER 0x0500
 #include <windows.h>
 #include <fstream>
 
+HANDLE   g_hidHandle;
+
+/**
+ * Initialize the g_hidHandle global variable
+ * It will attempt to read paths from devicepath.dat file if it exists until it finds one which works.
+ * If nothing is found, as a last resort it will try the two default paths from the Due and Leonardo
+ * versions of the firmware.
+ *
+ * @return 0 on success, -1 on error
+ */
+static int controller_init(){
+    FILE *file;
+    char  path[256];
+    
+    file = fopen("devicepath.dat", "r");
+    if (file == NULL)
+    {
+        goto last_resort;
+    }
+
+    while ( fgets(path,256,file) != NULL )
+    {
+        path[strcspn(path, "\r\n")] = 0;
+        g_hidHandle = CreateFile(path, GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
+        if ( g_hidHandle != INVALID_HANDLE_VALUE )
+            break;
+    }
+    fclose(file);
+
+    if ( g_hidHandle == INVALID_HANDLE_VALUE )
+    {
+        goto last_resort;
+    }
+    return 0;
+
+last_resort:
+    g_hidHandle = CreateFile("\\\\?\\HID#VID_2341&PID_003E&MI_02#7&3156e204&0&0000#{4d1e55b2-f16f-11cf-88cb-001111000030}",
+                             GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
+    if ( g_hidHandle != INVALID_HANDLE_VALUE )
+        return 0;
+
+    g_hidHandle = CreateFile("\\\\?\\HID#VID_2341&PID_8036&MI_02#7&63200bf&0&0000#{4d1e55b2-f16f-11cf-88cb-001111000030}",
+                             GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
+    if ( g_hidHandle != INVALID_HANDLE_VALUE )
+        return 0;
+
+    printf("Couldn't open device. Make sure devicepath.dat exists and contains the correct path.\r\n");
+    return -1;
+}
+
 int main(int argc, char* argv[])
 {
-    FILE    *file;
-    char     path[256];
-    HANDLE   hidHandle;
     char     OutputReport[5];
     int      res;
     int      mode;
@@ -25,18 +73,8 @@ int main(int argc, char* argv[])
         printf("Invalid mode value %d\r\n", mode);
         return 2;
     }
-
-    file = fopen("devicepath.dat", "r");
-    while ( fgets(path,256,file) != NULL )
-    {
-        path[strcspn(path, "\r\n")] = 0;
-        hidHandle = CreateFile(path, GENERIC_READ|GENERIC_WRITE, FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
-        if ( hidHandle != INVALID_HANDLE_VALUE )
-            break;
-    }
-    fclose(file);
-
-    if ( hidHandle == INVALID_HANDLE_VALUE )
+    
+    if ( controller_init() == -1 )
     {
         printf("Couldn't open device. Make sure devicepath.dat contains the correct path.\r\n");
         return 3;
@@ -48,7 +86,7 @@ int main(int argc, char* argv[])
     OutputReport[3] = 0x00;
     OutputReport[4] = mode+16;  //mode+magicbit
 
-    WriteFile(hidHandle, OutputReport, 5, &BytesWritten, NULL);
+    WriteFile(g_hidHandle, OutputReport, 5, &BytesWritten, NULL);
     if ( BytesWritten == 5 )
     {
         res = 0;
@@ -74,6 +112,6 @@ int main(int argc, char* argv[])
         res = 4;
     }
 
-    CloseHandle(hidHandle);
+    CloseHandle(g_hidHandle);
     return res;
 }

ModeSwitch/readme.md

@@ -38,6 +38,8 @@ The included devicepath.dat should work with both Due and Leonardo versions out
 
 devicepath.dat file should contain the device path on its own on a single line. Multiple paths on multiple lines should work too in which case it will open the first valid path it finds.
 
+If no valid path is found or if there is no `devicepath.dat` file, it will attempt to open the default paths from the Due and Leonardo versions (same as the ones found in this included devicepath file).
+ 
 ### spicetools
 
 open ```%appdata%/spicetools.xml```, look for a "devid" value starting with ```\\?\HID#VID_2341&PID_003E``` (Due) or ```\\?\HID#VID_2341&PID_8036``` (Leonardo)