command_registration: add empty usage field to chained commands

[openocd.git] / src / jtag / drivers / amt_jtagaccel.c

diff --git a/src/jtag/drivers/amt_jtagaccel.c b/src/jtag/drivers/amt_jtagaccel.c
index d89e5ffa91b3f56dba17c2ea8c2dec1baa6b4797..57c0ce6005b338591c273816d90f914227514480 100644 (file)
--- a/src/jtag/drivers/amt_jtagaccel.c
+++ b/src/jtag/drivers/amt_jtagaccel.c
@@ -13,9 +13,7 @@
  *   GNU General Public License for more details.                          *
  *                                                                         *
  *   You should have received a copy of the GNU General Public License     *
- *   along with this program; if not, write to the                         *
- *   Free Software Foundation, Inc.,                                       *
- *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  ***************************************************************************/
 
 #ifdef HAVE_CONFIG_H
@@ -124,7 +122,7 @@ static const int data_mode = IEEE1284_MODE_EPP | IEEE1284_DATA;
  * 4: Shift-IR
  * 5: Pause-IR
  */
-static uint8_t amt_jtagaccel_tap_move[6][6][2] = {
+static const uint8_t amt_jtagaccel_tap_move[6][6][2] = {
        /*         RESET         IDLE        DRSHIFT       DRPAUSE       IRSHIFT       IRPAUSE             */
        { {0x1f, 0x00}, {0x0f, 0x00}, {0x05, 0x00}, {0x0a, 0x00}, {0x06, 0x00}, {0x96, 0x00} }, /* RESET */
        { {0x1f, 0x00}, {0x00, 0x00}, {0x04, 0x00}, {0x05, 0x00}, {0x06, 0x00}, {0x0b, 0x00} }, /* IDLE */
@@ -264,7 +262,10 @@ static void amt_jtagaccel_scan(bool ir_scan, enum scan_type type, uint8_t *buffe
        else
                amt_jtagaccel_end_state(TAP_DRSHIFT);
 
-       amt_jtagaccel_state_move();
+       /* Only move if we're not already there */
+       if (tap_get_state() != tap_get_end_state())
+               amt_jtagaccel_state_move();
+
        amt_jtagaccel_end_state(saved_end_state);
 
        /* handle unaligned bits at the beginning */