From 6037b37a5bf03f0b38db6a83fe1bc48551b8363c Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter@cs.unisa.edu.au>
Date: Fri, 19 Oct 2007 10:22:51 +0930
Subject: [PATCH] Add XChangeDeviceHierarchy and its components.

---
 XI.h      | 13 ++++++++++++-
 XInput.h  | 37 ++++++++++++++++++++++++++++++++++---
 XIproto.h | 54 +++++++++++++++++++++++++++++++++++++++++++++++-------
 3 files changed, 93 insertions(+), 11 deletions(-)

diff --git a/XI.h b/XI.h
index 43b8745..cf0b234 100644
--- a/XI.h
+++ b/XI.h
@@ -114,7 +114,7 @@ SOFTWARE.
 #define sz_xQueryDevicePointerReply             32
 #define sz_xWarpDevicePointerReq                28
 #define sz_xChangeDeviceCursorReq               16
-#define sz_xChangePointerKeyboardPairingReq     8
+#define sz_xChangeDeviceHierarchyReq            8
 #define sz_xRegisterPairingClientReq            8
 #define sz_xRegisterPairingClientReply          32 
 #define sz_xGrabAccessControlReq                8
@@ -294,12 +294,23 @@ SOFTWARE.
 #define WindowAccessClearAll \
     WindowAccessClearPerm | WindowAccessClearDeny | WindowAccessClearRule
 
+/* Device presence notify states */
 #define DeviceAdded              0
 #define DeviceRemoved            1
 #define DeviceEnabled            2
 #define DeviceDisabled           3
 #define DeviceUnrecoverable      4  
 
+
+/* ChangeHierarchy constants */
+#define CH_CreateMasterDevice    1
+#define CH_RemoveMasterDevice    2
+#define CH_ChangeAttachment      3
+
+#define AttachToMaster           1
+#define Floating                 2
+
+/* XI Errors */
 #define XI_BadDevice	0
 #define XI_BadEvent	1
 #define XI_BadMode	2
diff --git a/XInput.h b/XInput.h
index 3d1da54..2167c21 100644
--- a/XInput.h
+++ b/XInput.h
@@ -1018,6 +1018,37 @@ typedef struct {
     char        	buttons[32];
 } XButtonState;
 
+
+/*******************************************************************
+ * 
+ */
+
+typedef struct {
+    int                 type;
+} XAnyHierarchyChangeInfo;
+
+typedef struct {
+    int                 type;
+    char*               name;
+    Bool                sendCore;
+    Bool                enable;
+} XCreateMasterInfo;
+
+typedef struct {
+    int                 type;
+    XDevice*            device;
+    int                 returnMode; /* AttachToMaster, Floating */
+    XDevice*            returnPointer;
+    XDevice*            returnKeyboard;
+} XRemoveMasterInfo;
+
+typedef struct {
+    int                 type;
+    XDevice*            device;
+    int                 changeMode; /* AttachToMaster, Floating */
+    XDevice*            newMaster;                    
+} XChangeAttachmentInfo;
+
 /*******************************************************************
  *
  * Function definitions.
@@ -1354,10 +1385,10 @@ extern Status   XUndefineDeviceCursor(
     Window              /* win */
 );
 
-extern Status   XChangePointerKeyboardPairing(
+extern Status   XChangeDeviceHierarchy(
     Display*            /* display */,
-    XDevice*            /* pointer */,
-    XDevice*            /* keyboard*/
+    int                 /* num_changes */,
+    XAnyHierarchyChangeInfo**  /* changes*/
 );
 
 extern Bool   XGetPairedPointer(
diff --git a/XIproto.h b/XIproto.h
index 3e233d3..fc7e5a2 100644
--- a/XIproto.h
+++ b/XIproto.h
@@ -168,7 +168,7 @@ struct tmask
 #define X_QueryDevicePointer            36
 #define X_WarpDevicePointer             37
 #define X_ChangeDeviceCursor            38
-#define X_ChangePointerKeyboardPairing  39
+#define X_ChangeDeviceHierarchy         39
 #define X_RegisterPairingClient         40
 #define X_GrabAccessControl             41
 #define X_ChangeWindowAccess            42
@@ -1513,18 +1513,58 @@ typedef struct {
 
 /**********************************************************
  *
- * ChangePointerKeyboardPairing.
+ * ChangeDeviceHierarchy
  *
  */
 
 typedef struct {
     CARD8       reqType;        /* input extension major code */
-    CARD8       ReqType;        /* always X_ChangePointerKeyboardPairing */
+    CARD8       ReqType;        /* always X_ChangeDeviceHierarchy */
     CARD16      length B16;
-    CARD8       pointer;        /* ID of pointer devices */
-    CARD8       keyboard;       /* ID of keyboard device */               
-    CARD16      pad0;
-} xChangePointerKeyboardPairingReq;
+    CARD8       num_changes;
+    CARD8       pad0;
+    CARD16      pad1 B16;
+} xChangeDeviceHierarchyReq;
+
+typedef struct {
+    CARD16      type    B16;
+    CARD16      length  B16;     /* in bytes */
+} xAnyHierarchyChangeInfo;
+
+/* Create a new master device. 
+ * Name of new master follows struct (4-byte padded)
+ */
+typedef struct {
+    CARD16      type    B16;       /* Always CH_CreateMasterDevice */
+    CARD16      length  B16;       /* 8 + (namelen + padding) */
+    CARD16      namelen;
+    CARD8       sendCore;
+    CARD8       enable;
+} xCreateMasterInfo;
+
+/* Delete a master device. Will automatically delete the master device paired
+ * with the given master device. 
+ */
+typedef struct {
+    CARD16      type    B16;     /* Always CH_RemoveMasterDevice */
+    CARD16      length  B16;     /* 8 */
+    CARD8       deviceid;
+    CARD8       returnMode;     /* AttachToMaster, Floating */
+    CARD8       returnPointer;  /* Pointer to attach slave ptr devices to */
+    CARD8       returnKeyboard; /* keyboard to attach slave keybd devices to*/
+} xRemoveMasterInfo;
+
+/* Change a device's attachment. 
+ * NewMaster has to be of same type (pointer->pointer, keyboard->keyboard);
+ */
+typedef struct {
+    CARD16      type    B16;     /* Always CH_ChangeAttachment */
+    CARD16      length  B16;     /* 8 */
+    CARD8       deviceid;
+    CARD8       changeMode;     /* AttachToMaster, Floating */
+    CARD8       newMaster;      /* id of new master device */
+    CARD8       pad0;
+} xChangeAttachmentInfo;
 
 /**********************************************************
  *
-- 
2.7.4