+// SPDX-License-Identifier: GPL-2.0-or-later
+
/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
- * 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. *
+ * Copyright (C) 2007,2008 Øyvind Harboe *
+ * oyvind.harboe@zylin.com *
***************************************************************************/
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "arm_jtag.h"
-#include "binarybuffer.h"
-#include "log.h"
-#include "jtag.h"
-
-#include <stdlib.h>
+#if 0
+#define _ARM_JTAG_SCAN_N_CHECK_
+#endif
-int arm_jtag_set_instr(arm_jtag_t *jtag_info, u32 new_instr)
+int arm_jtag_set_instr_inner(struct jtag_tap *tap,
+ uint32_t new_instr, void *no_verify_capture, tap_state_t end_state)
{
- jtag_device_t *device = jtag_get_device(jtag_info->chain_pos);
-
- if (buf_get_u32(device->cur_instr, 0, device->ir_length) != new_instr)
- {
- scan_field_t field;
-
- field.device = jtag_info->chain_pos;
- field.num_bits = device->ir_length;
- field.out_value = calloc(CEIL(field.num_bits, 8), 1);
- buf_set_u32(field.out_value, 0, field.num_bits, new_instr);
- field.out_mask = NULL;
- field.in_value = NULL;
- field.in_check_value = NULL;
- field.in_check_mask = NULL;
- field.in_handler = NULL;
- field.in_handler_priv = NULL;
-
- jtag_add_ir_scan(1, &field, -1);
-
- free(field.out_value);
+ struct scan_field field;
+ uint8_t t[4] = { 0 };
+
+ 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)
+ 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(arm_jtag_t *jtag_info, u32 new_scan_chain)
+int arm_jtag_scann_inner(struct arm_jtag *jtag_info, uint32_t new_scan_chain, tap_state_t end_state)
{
- if(jtag_info->cur_scan_chain != new_scan_chain)
- {
- scan_field_t field;
-
- field.device = jtag_info->chain_pos;
- field.num_bits = jtag_info->scann_size;
- field.out_value = calloc(CEIL(field.num_bits, 8), 1);
- buf_set_u32(field.out_value, 0, field.num_bits, new_scan_chain);
- field.out_mask = NULL;
- //field.in_value = &scan_n_capture;
- field.in_value = NULL;
- field.in_check_value = NULL;
- field.in_check_mask = NULL;
- field.in_handler = NULL;
- field.in_handler_priv = NULL;
-
- arm_jtag_set_instr(jtag_info, jtag_info->scann_instr);
- jtag_add_dr_scan(1, &field, -1);
-
- jtag_info->cur_scan_chain = new_scan_chain;
-
- free(field.out_value);
- }
-
- return ERROR_OK;
+ int retval = ERROR_OK;
+
+ uint8_t out_value[4] = { 0 };
+ 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;
}
-int arm_jtag_reset_callback(enum jtag_event event, void *priv)
+static int arm_jtag_reset_callback(enum jtag_event event, void *priv)
{
- arm_jtag_t *jtag_info = 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(arm_jtag_t *jtag_info)
+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;
- jtag_register_event_callback(arm_jtag_reset_callback, jtag_info);
-
- return ERROR_OK;
+ return jtag_register_event_callback(arm_jtag_reset_callback, jtag_info);
}
-int arm_jtag_buf_to_u32_flip(u8 *in_buf, void *priv)
+int arm_jtag_close_connection(struct arm_jtag *jtag_info)
{
- u32 *dest = priv;
-
- *dest = flip_u32(buf_get_u32(in_buf, 0, 32), 32);
-
- return ERROR_OK;
+ return jtag_unregister_event_callback(arm_jtag_reset_callback, jtag_info);
}
projects / fw / openocd / blobdiff