+// SPDX-License-Identifier: GPL-2.0-or-later
+
/***************************************************************************
* 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(arm_jtag_t *jtag_info, uint32_t new_instr, void *no_verify_capture)
+int arm_jtag_set_instr_inner(struct jtag_tap *tap,
+ uint32_t new_instr, void *no_verify_capture, tap_state_t end_state)
{
- struct jtag_tap *tap;
- tap = jtag_info->tap;
- if (tap == NULL)
- return ERROR_FAIL;
-
- if (buf_get_u32(tap->cur_instr, 0, tap->ir_length) != new_instr)
- {
- scan_field_t field;
- uint8_t t[4];
-
- field.tap = tap;
- 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)
- {
- jtag_add_ir_scan(1, &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(1, &field, jtag_get_end_state());
- }
+ 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, uint32_t new_scan_chain)
+int arm_jtag_scann_inner(struct arm_jtag *jtag_info, uint32_t new_scan_chain, tap_state_t end_state)
{
int retval = ERROR_OK;
- if (jtag_info->cur_scan_chain != new_scan_chain)
- {
- 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)
- {
- return retval;
- }
-
- jtag_add_dr_out(jtag_info->tap,
- 1,
- num_bits,
- values,
- jtag_get_end_state());
-
- jtag_info->cur_scan_chain = new_scan_chain;
- }
+
+ 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;
return jtag_register_event_callback(arm_jtag_reset_callback, jtag_info);
}
-/* read JTAG buffer into host-endian uint32_t, flipping bit-order */
-int arm_jtag_buf_to_u32_flip(uint8_t *in_buf, void *priv, struct scan_field_s *field)
-{
- uint32_t *dest = priv;
- *dest = flip_u32(le_to_h_u32(in_buf), 32);
- return ERROR_OK;
-}
-
-/* read JTAG buffer into little-endian uint32_t, flipping bit-order */
-int arm_jtag_buf_to_le32_flip(uint8_t *in_buf, void *priv, struct scan_field_s *field)
-{
- h_u32_to_le(((uint8_t*)priv), flip_u32(le_to_h_u32(in_buf), 32));
- return ERROR_OK;
-}
-
-/* read JTAG buffer into little-endian uint16_t, flipping bit-order */
-int arm_jtag_buf_to_le16_flip(uint8_t *in_buf, void *priv, struct scan_field_s *field)
-{
- h_u16_to_le(((uint8_t*)priv), flip_u32(le_to_h_u32(in_buf), 32) & 0xffff);
- return ERROR_OK;
-}
-
-/* read JTAG buffer into big-endian uint32_t, flipping bit-order */
-int arm_jtag_buf_to_be32_flip(uint8_t *in_buf, void *priv, struct scan_field_s *field)
-{
- h_u32_to_be(((uint8_t*)priv), flip_u32(le_to_h_u32(in_buf), 32));
- return ERROR_OK;
-}
-
-/* read JTAG buffer into big-endian uint16_t, flipping bit-order */
-int arm_jtag_buf_to_be16_flip(uint8_t *in_buf, void *priv, struct scan_field_s *field)
+int arm_jtag_close_connection(struct arm_jtag *jtag_info)
{
- h_u16_to_be(((uint8_t*)priv), flip_u32(le_to_h_u32(in_buf), 32) & 0xffff);
- return ERROR_OK;
-}
-
-/* read JTAG buffer into uint8_t, flipping bit-order */
-int arm_jtag_buf_to_8_flip(uint8_t *in_buf, void *priv, struct scan_field_s *field)
-{
- uint8_t *dest = priv;
- *dest = flip_u32(le_to_h_u32(in_buf), 32) & 0xff;
- return ERROR_OK;
-}
-
-/* not-flipping variants */
-/* read JTAG buffer into host-endian uint32_t */
-int arm_jtag_buf_to_u32(uint8_t *in_buf, void *priv, struct scan_field_s *field)
-{
- uint32_t *dest = priv;
- *dest = le_to_h_u32(in_buf);
- return ERROR_OK;
-}
-
-/* read JTAG buffer into little-endian uint32_t */
-int arm_jtag_buf_to_le32(uint8_t *in_buf, void *priv, struct scan_field_s *field)
-{
- h_u32_to_le(((uint8_t*)priv), le_to_h_u32(in_buf));
- return ERROR_OK;
-}
-
-/* read JTAG buffer into little-endian uint16_t */
-int arm_jtag_buf_to_le16(uint8_t *in_buf, void *priv, struct scan_field_s *field)
-{
- h_u16_to_le(((uint8_t*)priv), le_to_h_u32(in_buf) & 0xffff);
- return ERROR_OK;
-}
-
-/* read JTAG buffer into big-endian uint32_t */
-int arm_jtag_buf_to_be32(uint8_t *in_buf, void *priv, struct scan_field_s *field)
-{
- h_u32_to_be(((uint8_t*)priv), le_to_h_u32(in_buf));
- return ERROR_OK;
-}
-
-/* read JTAG buffer into big-endian uint16_t */
-int arm_jtag_buf_to_be16(uint8_t *in_buf, void *priv, struct scan_field_s *field)
-{
- h_u16_to_be(((uint8_t*)priv), le_to_h_u32(in_buf) & 0xffff);
- return ERROR_OK;
-}
-
-/* read JTAG buffer into uint8_t */
-int arm_jtag_buf_to_8(uint8_t *in_buf, void *priv, struct scan_field_s *field)
-{
- uint8_t *dest = priv;
- *dest = le_to_h_u32(in_buf) & 0xff;
- return ERROR_OK;
+ return jtag_unregister_event_callback(arm_jtag_reset_callback, jtag_info);
}
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