int arm_jtag_setup_connection(struct arm_jtag *jtag_info) { jtag_info->scann_instr = 0x2; jtag_info->cur_scan_chain = 0; jtag_info->intest_instr = 0xc; return jtag_register_event_callback(arm_jtag_reset_callback, jtag_info); }
int arm_jtag_scann_inner(struct arm_jtag *jtag_info, uint32_t new_scan_chain, tap_state_t end_state) { int retval = ERROR_OK; uint8_t out_value[4]; buf_set_u32(out_value, 0, jtag_info->scann_size, new_scan_chain); struct scan_field field = { .num_bits = jtag_info->scann_size, .out_value = out_value, }; retval = arm_jtag_set_instr(jtag_info->tap, jtag_info->scann_instr, NULL, end_state); if (retval != ERROR_OK) return retval; jtag_add_dr_scan(jtag_info->tap, 1, &field, end_state); jtag_info->cur_scan_chain = new_scan_chain; return retval; } static int arm_jtag_reset_callback(enum jtag_event event, void *priv) { struct arm_jtag *jtag_info = priv; if (event == JTAG_TRST_ASSERTED) jtag_info->cur_scan_chain = 0; return ERROR_OK; } int arm_jtag_setup_connection(struct arm_jtag *jtag_info) { jtag_info->scann_instr = 0x2; jtag_info->cur_scan_chain = 0; jtag_info->intest_instr = 0xc; return jtag_register_event_callback(arm_jtag_reset_callback, jtag_info); }