static uint32_t dsu_readIR(urj_chain_t *chain)
{
urj_tap_capture_ir(chain);
wir = urj_tap_register_fill(wir, 1);
urj_tap_shift_register(chain, wir, dsurir, URJ_CHAIN_EXITMODE_IDLE);
return urj_tap_register_get_value(dsurir);
}
int
urj_tap_chain_shift_instructions_mode (urj_chain_t *chain,
int capture_output, int capture,
int chain_exit)
{
int i;
urj_parts_t *ps;
if (!chain || !chain->parts)
{
urj_error_set (URJ_ERROR_NO_CHAIN, "no chain or no part");
return URJ_STATUS_FAIL;
}
ps = chain->parts;
for (i = 0; i < ps->len; i++)
{
if (ps->parts[i]->active_instruction == NULL)
{
urj_error_set (URJ_ERROR_NO_ACTIVE_INSTRUCTION,
_("Part %d without active instruction"), i);
return URJ_STATUS_FAIL;
}
}
if (capture)
urj_tap_capture_ir (chain);
/* new implementation: split into defer + retrieve part
shift the data register of each part in the chain one by one */
for (i = 0; i < ps->len; i++)
{
urj_tap_defer_shift_register (chain,
ps->parts[i]->active_instruction->value,
capture_output ? ps->parts[i]->active_instruction->out
: NULL,
(i + 1) == ps->len ? chain_exit : URJ_CHAIN_EXITMODE_SHIFT);
}
if (capture_output)
{
for (i = 0; i < ps->len; i++)
{
urj_tap_shift_register_output (chain,
ps->parts[i]->active_instruction->value,
ps->parts[i]->active_instruction->out,
(i + 1) == ps->len ? chain_exit
: URJ_CHAIN_EXITMODE_SHIFT);
}
}
else
{
/* give the cable driver a chance to flush if it's considered useful */
urj_tap_cable_flush (chain->cable, URJ_TAP_CABLE_TO_OUTPUT);
}
return URJ_STATUS_OK;
}
static void dsu_writeIR(urj_chain_t *chain, int size, unsigned int val)
{
urj_tap_register_t *rwr = urj_tap_register_alloc(size);
urj_tap_register_set_value(rwr, val);
urj_tap_capture_ir(chain);
urj_tap_shift_register(chain, rwr, NULL, URJ_CHAIN_EXITMODE_IDLE);
urj_tap_register_free(rwr);
/* urj_tap_capture_ir(chain); */
/* urj_tap_register_set_value(wir, val); */
/* urj_tap_shift_register(chain, wir, NULL, URJ_CHAIN_EXITMODE_IDLE); */
}
