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- /***************************************************************************
- * Copyright (C) 2005 by Dominic Rath *
- * Dominic.Rath@gmx.de *
- * *
- * Copyright (C) 2007,2008 Øyvind Harboe *
- * oyvind.harboe@zylin.com *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
- ***************************************************************************/
- #ifdef HAVE_CONFIG_H
- #include "config.h"
- #endif
-
- #include "arm_jtag.h"
-
-
- #if 0
- #define _ARM_JTAG_SCAN_N_CHECK_
- #endif
-
- int arm_jtag_set_instr_inner(struct arm_jtag *jtag_info, uint32_t new_instr, void *no_verify_capture, tap_state_t end_state)
- {
- struct jtag_tap *tap;
- tap = jtag_info->tap;
- struct scan_field field;
- uint8_t t[4];
-
- field.num_bits = tap->ir_length;
- field.out_value = t;
- buf_set_u32(t, 0, field.num_bits, new_instr);
- field.in_value = NULL;
-
- if (no_verify_capture == NULL)
- {
- jtag_add_ir_scan(tap, &field, end_state);
- } else
- {
- /* FIX!!!! this is a kludge!!! arm926ejs.c should reimplement this arm_jtag_set_instr to
- * have special verification code.
- */
- jtag_add_ir_scan_noverify(tap, &field, end_state);
- }
-
- return ERROR_OK;
- }
-
- int arm_jtag_scann_inner(struct arm_jtag *jtag_info, uint32_t new_scan_chain, tap_state_t end_state)
- {
- int retval = ERROR_OK;
- uint32_t values[1];
- int num_bits[1];
-
- values[0]=new_scan_chain;
- num_bits[0]=jtag_info->scann_size;
-
- if ((retval = arm_jtag_set_instr(jtag_info, jtag_info->scann_instr, NULL, end_state)) != ERROR_OK)
- {
- return retval;
- }
-
- jtag_add_dr_out(jtag_info->tap,
- 1,
- num_bits,
- values,
- 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);
- }
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