ft2232: fix input scan ending in drshift/irshift

The final bit was incorrectly added as output data, even if no data was
to be written. Changed it to match handling of other bits.

Change-Id: I91e5ba0c932876bfb579c22e6c7ef0300baa1534
Signed-off-by: Yann Vernier <yann.vernier@orsoc.se>
Reviewed-on: http://openocd.zylin.com/1049
Tested-by: jenkins
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>

diff --git a/src/jtag/drivers/ft2232.c b/src/jtag/drivers/ft2232.c
index 9a40ed9a5f25e54a081777dd5a4c2b81d5b9ed1e..4b3360fe701bb92bf1d4c690c469e5930633c60d 100644 (file)
--- a/src/jtag/drivers/ft2232.c
+++ b/src/jtag/drivers/ft2232.c
@@ -1061,7 +1061,8 @@ static void ft2232_add_scan(bool ir_scan, enum scan_type type, uint8_t *buffer,
                        /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
                }
                buffer_write(0x0);
-               buffer_write(last_bit);
+               if (type != SCAN_IN)
+                       buffer_write(last_bit);
        } else {
                int tms_bits;
                int tms_count;