* include/grub/ieee1275/ieee1275.h (grub_ieee1275_flag): New enum value

GRUB_IEEE1275_FLAG_BROKEN_REPEAT.
	* grub-core/kern/ieee1275/cmain.c (grub_ieee1275_find_options): Set
	GRUB_IEEE1275_FLAG_BROKEN_REPEAT on PowerBook3,3.
	* include/grub/terminfo.h (grub_terminfo_input_state) [__powerpc__]:
	New fields last_key and last_key_time.
	* grub-core/term/terminfo.c (grub_terminfo_getkey): Transform
	extended key-esc into extended key-extended key.

ChangeLog

@@ -1,3 +1,14 @@
+2012-06-20  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* include/grub/ieee1275/ieee1275.h (grub_ieee1275_flag): New enum value
+	GRUB_IEEE1275_FLAG_BROKEN_REPEAT.
+	* grub-core/kern/ieee1275/cmain.c (grub_ieee1275_find_options): Set
+	GRUB_IEEE1275_FLAG_BROKEN_REPEAT on PowerBook3,3.
+	* include/grub/terminfo.h (grub_terminfo_input_state) [__powerpc__]:
+	New fields last_key and last_key_time.
+	* grub-core/term/terminfo.c (grub_terminfo_getkey): Transform
+	extended key-esc into extended key-extended key.
+
 2012-06-19  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	Avoid unnecessary memcpy of whole video buffer.

grub-core/kern/ieee1275/cmain.c

@@ -92,6 +92,17 @@ grub_ieee1275_find_options (void)
   if (rc >= 0 && grub_strncmp (tmp, "IBM", 3) == 0)
     grub_ieee1275_set_flag (GRUB_IEEE1275_FLAG_NO_TREE_SCANNING_FOR_DISKS);
 
+  /* Old Macs have no key repeat, newer ones have fully working one.
+     The ones inbetween when repeated key generates an escaoe sequence
+     only the escape is repeated. With this workaround however a fast
+     e.g. down arrow-ESC is perceived as down arrow-down arrow which is
+     also annoying but is less so than the original bug of exiting from
+     the current window on arrow repeat. To avoid unaffected users suffering
+     from this workaround match only exact models known to have this bug.
+   */
+  if (rc >= 0 && grub_strcmp (tmp, "PowerBook3,3") == 0)
+    grub_ieee1275_set_flag (GRUB_IEEE1275_FLAG_BROKEN_REPEAT);
+
   rc = grub_ieee1275_get_property (root, "compatible",
 				   tmp,	sizeof (tmp), &actual);
   if (rc >= 0)

grub-core/term/terminfo.c

@@ -33,6 +33,9 @@
 #include <grub/extcmd.h>
 #include <grub/i18n.h>
 #include <grub/time.h>
+#ifdef __powerpc__
+#include <grub/ieee1275/ieee1275.h>
+#endif
 
 GRUB_MOD_LICENSE ("GPLv3+");
 
@@ -560,11 +563,30 @@ grub_terminfo_getkey (struct grub_term_input *termi)
   grub_terminfo_readkey (termi, data->input_buf,
 			 &data->npending, data->readkey);
 
+#ifdef __powerpc__
+  if (data->npending == 1 && data->input_buf[0] == '\e'
+      && grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_BROKEN_REPEAT)
+      && grub_get_time_ms () - data->last_key_time < 1000
+      && (data->last_key & GRUB_TERM_EXTENDED))
+    {
+      data->npending = 0;
+      data->last_key_time = grub_get_time_ms ();
+      return data->last_key;
+    }
+#endif
+
   if (data->npending)
     {
       int ret;
       data->npending--;
       ret = data->input_buf[0];
+#ifdef __powerpc__
+      if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_BROKEN_REPEAT))
+	{
+	  data->last_key = ret;
+	  data->last_key_time = grub_get_time_ms ();
+	}
+#endif
       grub_memmove (data->input_buf, data->input_buf + 1, data->npending
 		    * sizeof (data->input_buf[0]));
       return ret;

include/grub/ieee1275/ieee1275.h

@@ -121,7 +121,9 @@ enum grub_ieee1275_flag
 
   GRUB_IEEE1275_FLAG_NO_OFNET_SUFFIX,
 
-  GRUB_IEEE1275_FLAG_VIRT_TO_REAL_BROKEN
+  GRUB_IEEE1275_FLAG_VIRT_TO_REAL_BROKEN,
+
+  GRUB_IEEE1275_FLAG_BROKEN_REPEAT
 };
 
 extern int EXPORT_FUNC(grub_ieee1275_test_flag) (enum grub_ieee1275_flag flag);

include/grub/terminfo.h

@@ -32,6 +32,10 @@ struct grub_terminfo_input_state
 {
   int input_buf[GRUB_TERMINFO_READKEY_MAX_LEN];
   int npending;
+#ifdef __powerpc__
+  int last_key;
+  grub_uint64_t last_key_time;
+#endif
   int (*readkey) (struct grub_term_input *term);
 };