"JTAG controller reset (RESET or TRST)"
};
-const Jim_Nvp nvp_jtag_tap_event[] = {
- { .value = JTAG_TAP_EVENT_ENABLE, .name = "tap-enable" },
- { .value = JTAG_TAP_EVENT_DISABLE, .name = "tap-disable" },
-
- { .name = NULL, .value = -1 }
-};
-
static int jtag_trst = 0;
static int jtag_srst = 0;
static int jtag_nsrst_delay = 0; /* default to no nSRST delay */
static int jtag_ntrst_delay = 0; /* default to no nTRST delay */
+typedef struct jtag_event_callback_s
+{
+ jtag_event_handler_t callback;
+ void* priv;
+ struct jtag_event_callback_s* next;
+} jtag_event_callback_t;
+
/* callbacks to inform high-level handlers about JTAG state changes */
static jtag_event_callback_t *jtag_event_callbacks;
static bool hasKHz = false;
static int jtag_speed = 0;
-struct jtag_interface_s *jtag = NULL;
+static struct jtag_interface_s *jtag = NULL;
/* configuration */
jtag_interface_t *jtag_interface = NULL;
}
/* no tap found by name, so try to parse the name as a number */
- char *cp;
- unsigned n = strtoul(s, &cp, 0);
- if ((s == cp) || (*cp != 0))
+ unsigned n;
+ if (parse_uint(s, &n) != ERROR_OK)
return NULL;
return jtag_tap_by_position(n);
return t;
}
+jtag_tap_t* jtag_tap_next_enabled(jtag_tap_t* p)
+{
+ p = p ? p->next_tap : jtag_all_taps();
+ while (p)
+ {
+ if (p->enabled)
+ return p;
+ p = p->next_tap;
+ }
+ return NULL;
+}
+
const char *jtag_tap_name(const jtag_tap_t *tap)
{
return (tap == NULL) ? "(unknown)" : tap->dotted_name;
}
-int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv)
+int jtag_register_event_callback(jtag_event_handler_t callback, void *priv)
{
jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
return ERROR_OK;
}
-int jtag_unregister_event_callback(int (*callback)(enum jtag_event event, void *priv))
+int jtag_unregister_event_callback(jtag_event_handler_t callback)
{
jtag_event_callback_t **callbacks_p = &jtag_event_callbacks;
cmd_queue_cur_state = path[num_states - 1];
}
+int jtag_add_statemove(tap_state_t goal_state)
+{
+ tap_state_t cur_state = cmd_queue_cur_state;
+
+ LOG_DEBUG( "cur_state=%s goal_state=%s",
+ tap_state_name(cur_state),
+ tap_state_name(goal_state) );
+
+
+ if (goal_state==cur_state )
+ ; /* nothing to do */
+ else if( goal_state==TAP_RESET )
+ {
+ jtag_add_tlr();
+ }
+ 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 < DIM(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
+ || tap_state_transition(cur_state, false) == goal_state )
+ {
+ jtag_add_pathmove(1, &goal_state);
+ }
+
+ else
+ return ERROR_FAIL;
+
+ return ERROR_OK;
+}
+
void jtag_add_runtest(int num_cycles, tap_state_t state)
{
jtag_prelude(state);
tap->expected_mask = malloc(tap->ir_length);
tap->cur_instr = malloc(tap->ir_length);
+ /// @todo cope sanely with ir_length bigger than 32 bits
buf_set_u32(tap->expected, 0, tap->ir_length, tap->ir_capture_value);
buf_set_u32(tap->expected_mask, 0, tap->ir_length, tap->ir_capture_mask);
buf_set_ones(tap->cur_instr, tap->ir_length);
{
return speed_khz;
}
+int jtag_config_khz(unsigned khz)
+{
+ LOG_DEBUG("handle jtag khz");
+ jtag_set_speed_khz(khz);
+
+ int cur_speed = 0;
+ if (jtag != NULL)
+ {
+ LOG_DEBUG("have interface set up");
+ int speed_div1;
+ int retval = jtag->khz(jtag_get_speed_khz(), &speed_div1);
+ if (ERROR_OK != retval)
+ {
+ jtag_set_speed_khz(0);
+ return retval;
+ }
+ cur_speed = speed_div1;
+ }
+ return jtag_set_speed(cur_speed);
+}
+
int jtag_get_speed(void)
{
return jtag_speed;
return jtag ? jtag->speed(speed) : ERROR_OK;
}
+int jtag_get_speed_readable(int *speed)
+{
+ return jtag ? jtag->speed_div(jtag_get_speed(), speed) : ERROR_OK;
+}
+
+
void jtag_set_verify(bool enable)
{
jtag_verify = enable;
return jtag->srst_asserted(srst_asserted);
}
-void jtag_tap_handle_event( jtag_tap_t * tap, enum jtag_tap_event e)
-{
- jtag_tap_event_action_t * jteap;
- int done;
-
- jteap = tap->event_action;
-
- done = 0;
- while (jteap) {
- if (jteap->event == e) {
- done = 1;
- LOG_DEBUG( "JTAG tap: %s event: %d (%s) action: %s\n",
- tap->dotted_name,
- e,
- Jim_Nvp_value2name_simple(nvp_jtag_tap_event, e)->name,
- Jim_GetString(jteap->body, NULL) );
- if (Jim_EvalObj(interp, jteap->body) != JIM_OK) {
- Jim_PrintErrorMessage(interp);
- }
- }
-
- jteap = jteap->next;
- }
-
- if (!done) {
- LOG_DEBUG( "event %d %s - no action",
- e,
- Jim_Nvp_value2name_simple( nvp_jtag_tap_event, e)->name);
- }
-}
-
-int jtag_add_statemove(tap_state_t goal_state)
-{
- tap_state_t cur_state = cmd_queue_cur_state;
-
- LOG_DEBUG( "cur_state=%s goal_state=%s",
- tap_state_name(cur_state),
- tap_state_name(goal_state) );
-
-
- if (goal_state==cur_state )
- ; /* nothing to do */
- else if( goal_state==TAP_RESET )
- {
- jtag_add_tlr();
- }
- 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 < DIM(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
- || tap_state_transition(cur_state, false) == goal_state )
- {
- jtag_add_pathmove(1, &goal_state);
- }
-
- else
- return ERROR_FAIL;
-
- return ERROR_OK;
-}
-
enum reset_types jtag_get_reset_config(void)
{
return jtag_reset_config;
projects / fw / openocd / blobdiff