1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * Copyright (C) 2007,2008 Øyvind Harboe *
6 * oyvind.harboe@zylin.com *
8 * This program is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
13 * This program is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
18 * You should have received a copy of the GNU General Public License *
19 * along with this program; if not, write to the *
20 * Free Software Foundation, Inc., *
21 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
22 ***************************************************************************/
31 #define _ARM_JTAG_SCAN_N_CHECK_
34 int arm_jtag_set_instr_inner(struct arm_jtag *jtag_info, uint32_t new_instr, void *no_verify_capture)
38 struct scan_field field;
42 field.num_bits = tap->ir_length;
44 buf_set_u32(field.out_value, 0, field.num_bits, new_instr);
45 field.in_value = NULL;
47 if (no_verify_capture == NULL)
49 jtag_add_ir_scan(1, &field, jtag_get_end_state());
52 /* FIX!!!! this is a kludge!!! arm926ejs.c should reimplement this arm_jtag_set_instr to
53 * have special verification code.
55 jtag_add_ir_scan_noverify(1, &field, jtag_get_end_state());
61 int arm_jtag_scann_inner(struct arm_jtag *jtag_info, uint32_t new_scan_chain)
63 int retval = ERROR_OK;
67 values[0]=new_scan_chain;
68 num_bits[0]=jtag_info->scann_size;
70 if ((retval = arm_jtag_set_instr(jtag_info, jtag_info->scann_instr, NULL)) != ERROR_OK)
75 jtag_add_dr_out(jtag_info->tap,
79 jtag_get_end_state());
81 jtag_info->cur_scan_chain = new_scan_chain;
86 int arm_jtag_reset_callback(enum jtag_event event, void *priv)
88 struct arm_jtag *jtag_info = priv;
90 if (event == JTAG_TRST_ASSERTED)
92 jtag_info->cur_scan_chain = 0;
98 int arm_jtag_setup_connection(struct arm_jtag *jtag_info)
100 jtag_info->scann_instr = 0x2;
101 jtag_info->cur_scan_chain = 0;
102 jtag_info->intest_instr = 0xc;
104 return jtag_register_event_callback(arm_jtag_reset_callback, jtag_info);