static int avr32_ap7k_halt(struct target *target)
{
struct avr32_ap7k_common *ap7k = target_to_ap7k(target);
LOG_DEBUG("target->state: %s",
target_state_name(target));
if (target->state == TARGET_HALTED) {
LOG_DEBUG("target was already halted");
return ERROR_OK;
}
if (target->state == TARGET_UNKNOWN)
LOG_WARNING("target was in unknown state when halt was requested");
if (target->state == TARGET_RESET) {
if ((jtag_get_reset_config() & RESET_SRST_PULLS_TRST) && jtag_get_srst()) {
LOG_ERROR("can't request a halt while in reset if nSRST pulls nTRST");
return ERROR_TARGET_FAILURE;
} else {
target->debug_reason = DBG_REASON_DBGRQ;
return ERROR_OK;
}
}
avr32_ocd_setbits(&ap7k->jtag, AVR32_OCDREG_DC, OCDREG_DC_DBR);
target->debug_reason = DBG_REASON_DBGRQ;
return ERROR_OK;
}
static int avr32_ap7k_examine(struct target *target)
{
uint32_t devid, ds;
struct avr32_ap7k_common *ap7k = target_to_ap7k(target);
if (!target_was_examined(target))
{
target_set_examined(target);
avr32_jtag_nexus_read(&ap7k->jtag, AVR32_OCDREG_DID, &devid);
LOG_INFO("device id: %08x", devid);
avr32_ocd_setbits(&ap7k->jtag, AVR32_OCDREG_DC,OCDREG_DC_DBE);
avr32_jtag_nexus_read(&ap7k->jtag, AVR32_OCDREG_DS, &ds);
/* check for processor halted */
if (ds & OCDREG_DS_DBA)
{
LOG_INFO("target is halted");
target->state = TARGET_HALTED;
}
else
target->state = TARGET_RUNNING;
}
return ERROR_OK;
}
