Encapsulate the jtag_event_callback list; add helper functions if needed.

git-svn-id: svn://svn.berlios.de/openocd/trunk@2158 b42882b7-edfa-0310-969c-e2dbd0fdcd60

src/jtag/core.c

@@ -88,7 +88,7 @@ static int jtag_nsrst_delay = 0; /* default to no nSRST delay */
 static int jtag_ntrst_delay = 0; /* default to no nTRST delay */
 
 /* callbacks to inform high-level handlers about JTAG state changes */
-jtag_event_callback_t *jtag_event_callbacks;
+static jtag_event_callback_t *jtag_event_callbacks;
 
 /* speed in kHz*/
 static int speed_khz = 0;

src/jtag/jtag.h

@@ -255,8 +255,6 @@ typedef struct jtag_event_callback_s
 	struct jtag_event_callback_s* next;
 } jtag_event_callback_t;
 
-extern jtag_event_callback_t* jtag_event_callbacks;
-
 extern int jtag_speed;
 extern int jtag_speed_post_reset;