Add OSGetConsoleType, and MCP_GetSystemMode (#441)

* add OSGetConsoleType, and MCP_GetSystemMode

this adds in two functions that were an exported symbol in the system
libraries, but not included in any headers. these are useful for doing
two things:

- determine what kind of console you're running on (for users who want
  to know if they're running a CAT-DEV, CAT-R, Kiosk Unit, Retail
  Wii-U's, etc.)
- determine if the wii-u is currently running in production/development
  mode. this shouldn't be too useful for many users, as not too much
  changes besides certain extra libraries/etc. are loaded in memory.
  however, users may want to lock things behind development mode as dev
  mode can only be normally enabled when there's extra memory.

* add new comment to mask

include/coreinit/core.h

@@ -14,6 +14,15 @@ extern "C" {
 #endif
 
 
+/**
+ * Can be used to mask the return value of
+ * \ref OSGetConsoleType
+ * for determining the "group" of console. See the function for more
+ * information around the values the mask gives.
+ */
+#define OS_CONSOLE_TYPE_MASK 0xF0000000
+
+
 /**
  * Gets the number of cores in the system. On a retail Wii U, this is always 3.
  *
@@ -58,6 +67,22 @@ BOOL
 OSIsMainCore();
 
 
+/**
+ * Get the type of console this code is actively running on.
+ *
+ * Most of the field is relatively unknown but you can use
+ * \ref OS_CONSOLE_TYPE_MASK
+ * which returns whether the unit is a Retail/CAT-R unit with `0x00000000`,
+ * a CAT-DEV or other CAFE development board with `0x10000000`, and an
+ * orchestrax unit with `0x20000000`.
+ *
+ * \returns
+ * A number representing the specific console types.
+ */
+uint32_t
+OSGetConsoleType();
+
+
 #ifdef __cplusplus
 }
 #endif

include/coreinit/mcp.h

@@ -102,6 +102,16 @@ typedef enum MCPCompatAVFile
    MCP_COMPAT_AV_FILE_DEINT = 0x01,
 } MCPCompatAVFile;
 
+typedef enum MCPSystemMode
+{
+   //! This unit is in 'retail'/'production' mode.
+   MCP_PRODUCTION  = 0x00,
+   //! This unit is in 'development' mode (default for CAT-DEV).
+   MCP_DEVELOPMENT = 0x01,
+   //! This unit is in 'test' mode.
+   MCP_TEST        = 0x02,
+} MCPSystemMode;
+
 struct WUT_PACKED MCPDevice
 {
    char type[8];
@@ -241,6 +251,10 @@ MCPError
 MCP_GetOwnTitleInfo(int32_t handle,
                     MCPTitleListType *titleInfo);
 
+MCPError
+MCP_GetSystemMode(int32_t handle,
+                  MCPSystemMode *mode);
+
 MCPError
 MCP_GetSysProdSettings(int32_t handle,
                        MCPSysProdSettings *settings);
@@ -363,7 +377,7 @@ MCP_CompatLoadAVFile(int32_t handle,
 /**
  * Saves the current Cafe log to the SLC logs directory.
  * Internally calls IOS_Ioctl() with request \c 0xCD .
- * 
+ *
  * \return
  * \c 0 on success.
  */