Lua: expose BUTTON_* defines

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21500 a1c6a512-1295-4272-9138-f99709370657

2 files changed, 70 insertions, 2 deletions

diff --git a/apps/plugins/lua/button_helper.pl b/apps/plugins/lua/button_helper.pl
new file mode 100755
index 0000000000..43307a0e52
--- /dev/null
+++ b/apps/plugins/lua/button_helper.pl
@@ -0,0 +1,64 @@
+#!/usr/bin/env perl
+############################################################################
+#             __________               __   ___.                  
+#   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___  
+#   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /  
+#   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <   
+#   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+#                     \/            \/     \/    \/            \/ 
+# $Id$
+#
+# Copyright (C) 2009 by Maurus Cuelenaere
+#
+# All files in this archive are subject to the GNU General Public License.
+# See the file COPYING in the source tree root for full license agreement.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+############################################################################
+
+$svnrev = '$Revision$';
+
+print <<EOF
+#include <stdio.h>
+#include <stdbool.h>
+#include "button-target.h"
+
+struct button
+{
+    char* name;
+    unsigned long value;
+};
+
+static struct button buttons[] = {
+EOF
+;
+
+while(my $line = <STDIN>)
+{
+    chomp($line);
+    if($line =~ /^#define (BUTTON_[^\s]+) (.+)$/)
+    {
+        printf "{\"%s\", %s},\n", $1, $2;
+    }
+}
+
+print <<EOF
+};
+
+int main(void)
+{
+    unsigned int i;
+    printf("-- Don't change this file!\\n");
+    printf("-- It is automatically generated of button-target.h \%s\\n", "$svnrev");
+    printf("rb.buttons = {\\n");
+    for(i=0; i<sizeof(buttons)/sizeof(struct button); i++)
+        printf("\\t\%s = \%ld,\\n", buttons[i].name, buttons[i].value);
+    printf("}\\n");
+
+    return 0;
+}
+
+EOF
+;
diff --git a/apps/plugins/lua/lua.make b/apps/plugins/lua/lua.make
index 596e32045f..1232ddf043 100644
--- a/apps/plugins/lua/lua.make
+++ b/apps/plugins/lua/lua.make
@@ -30,10 +30,14 @@ else
     ROCKS += $(LUA_BUILDDIR)/lua.rock
 endif
 
-$(LUA_BUILDDIR)/lua.rock: $(LUA_OBJ) $(LUA_BUILDDIR)/actions.lua
+$(LUA_BUILDDIR)/lua.rock: $(LUA_OBJ) $(LUA_BUILDDIR)/actions.lua $(LUA_BUILDDIR)/buttons.lua
 
 $(LUA_BUILDDIR)/actions.lua: $(LUA_OBJ)
-        $(call PRINTS,GEN $(@F))$(CC) $(PLUGINFLAGS) -E $(APPSDIR)/action.h | $(LUA_SRCDIR)/action_helper.pl > $(LUA_BUILDDIR)/actions.lua
+        $(call PRINTS,GEN $(@F))$(CC) $(INCLUDES) -E $(APPSDIR)/action.h | $(LUA_SRCDIR)/action_helper.pl > $(LUA_BUILDDIR)/actions.lua
+
+$(LUA_BUILDDIR)/buttons.lua: $(LUA_OBJ)
+        $(SILENT)$(CC) $(INCLUDES) -dM -E -include button-target.h - < /dev/null | $(LUA_SRCDIR)/button_helper.pl | $(HOSTCC) -fno-builtin $(INCLUDES) -x c -o $(LUA_BUILDDIR)/button_helper -
+        $(call PRINTS,GEN $(@F))$(LUA_BUILDDIR)/button_helper > $(LUA_BUILDDIR)/buttons.lua
 
 $(LUA_BUILDDIR)/lua.refmap: $(LUA_OBJ)