* 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 *
* 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"
-#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 arm_jtag *jtag_info, uint32_t new_instr, void *no_verify_capture)
{
- jtag_device_t *device = jtag_get_device(jtag_info->chain_pos);
-
- if (buf_get_u32(device->cur_instr, 0, device->ir_length) != new_instr)
+ 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(field.out_value, 0, field.num_bits, new_instr);
+ field.in_value = NULL;
+
+ if (no_verify_capture == NULL)
{
- 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);
+ jtag_add_ir_scan(tap, &field, jtag_get_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, jtag_get_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)
{
- if(jtag_info->cur_scan_chain != new_scan_chain)
+ 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)) != ERROR_OK)
{
- 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 retval;
}
-
- return ERROR_OK;
+
+ jtag_add_dr_out(jtag_info->tap,
+ 1,
+ num_bits,
+ values,
+ jtag_get_end_state());
+
+ jtag_info->cur_scan_chain = new_scan_chain;
+
+ return retval;
}
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;
-}
-
-int arm_jtag_buf_to_u32_flip(u8 *in_buf, void *priv)
-{
- u32 *dest = priv;
-
- *dest = flip_u32(buf_get_u32(in_buf, 0, 32), 32);
-
- return ERROR_OK;
+ return jtag_register_event_callback(arm_jtag_reset_callback, jtag_info);
}