C++ (Cpp) tap_is_state_stable Examples

Example #1

File: core.c Project: Dolu1990/openocd_riscv

int jtag_add_statemove(tap_state_t goal_state)
{
	tap_state_t cur_state = cmd_queue_cur_state;

	if (goal_state != cur_state) {
		LOG_DEBUG("cur_state=%s goal_state=%s",
			tap_state_name(cur_state),
			tap_state_name(goal_state));
	}

	/* If goal is RESET, be paranoid and force that that transition
	 * (e.g. five TCK cycles, TMS high).  Else trust "cur_state".
	 */
	if (goal_state == TAP_RESET)
		jtag_add_tlr();
	else if (goal_state == cur_state)
		/* nothing to do */;

	else if (tap_is_state_stable(cur_state) && tap_is_state_stable(goal_state)) {
		unsigned tms_bits  = tap_get_tms_path(cur_state, goal_state);
		unsigned tms_count = tap_get_tms_path_len(cur_state, goal_state);
		tap_state_t moves[8];
		assert(tms_count < ARRAY_SIZE(moves));

		for (unsigned i = 0; i < tms_count; i++, tms_bits >>= 1) {
			bool bit = tms_bits & 1;

			cur_state = tap_state_transition(cur_state, bit);
			moves[i] = cur_state;
		}

		jtag_add_pathmove(tms_count, moves);
	} else if (tap_state_transition(cur_state, true)  == goal_state

Example #2

File: core.c Project: Dolu1990/openocd_riscv

void jtag_add_pathmove(int num_states, const tap_state_t *path)
{
	tap_state_t cur_state = cmd_queue_cur_state;

	/* the last state has to be a stable state */
	if (!tap_is_state_stable(path[num_states - 1])) {
		LOG_ERROR("BUG: TAP path doesn't finish in a stable state");
		jtag_set_error(ERROR_JTAG_NOT_STABLE_STATE);
		return;
	}

	for (int i = 0; i < num_states; i++) {
		if (path[i] == TAP_RESET) {
			LOG_ERROR("BUG: TAP_RESET is not a valid state for pathmove sequences");
			jtag_set_error(ERROR_JTAG_STATE_INVALID);
			return;
		}

		if (tap_state_transition(cur_state, true) != path[i] &&
				tap_state_transition(cur_state, false) != path[i]) {
			LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition",
				tap_state_name(cur_state), tap_state_name(path[i]));
			jtag_set_error(ERROR_JTAG_TRANSITION_INVALID);
			return;
		}
		cur_state = path[i];
	}

	jtag_checks();

	jtag_set_error(interface_jtag_add_pathmove(num_states, path));
	cmd_queue_cur_state = path[num_states - 1];
}

Example #3

File: jlink.c Project: saeugetier/openocd

static void jlink_end_state(tap_state_t state)
{
	if (tap_is_state_stable(state))
		tap_set_end_state(state);
	else {
		LOG_ERROR("BUG: %i is not a valid end state", state);
		exit(-1);
	}
}

Example #4

File: ftdi.c Project: rjarzmik/openocd

static void ftdi_end_state(tap_state_t state)
{
    if (tap_is_state_stable(state))
        tap_set_end_state(state);
    else {
        LOG_ERROR("BUG: %s is not a stable end state", tap_state_name(state));
        exit(-1);
    }
}

Example #5

File: amt_jtagaccel.c Project: unnamet/estick-jtag

void amt_jtagaccel_end_state(int state)
{
	if (tap_is_state_stable(state))
		tap_set_end_state(state);
	else
	{
		LOG_ERROR("BUG: %i is not a valid end state", state);
		exit(-1);
	}
}