1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
26 #include "binarybuffer.h"
33 #define _ARM_JTAG_SCAN_N_CHECK_
36 int arm_jtag_set_instr_error_handler(u8
*in_value
, void *priv
)
38 ERROR("setting the new JTAG instruction failed, debugging is likely to be broken");
43 int arm_jtag_set_instr(arm_jtag_t
*jtag_info
, u32 new_instr
, error_handler_t
*caller_error_handler
)
45 jtag_device_t
*device
= jtag_get_device(jtag_info
->chain_pos
);
47 if (buf_get_u32(device
->cur_instr
, 0, device
->ir_length
) != new_instr
)
51 field
.device
= jtag_info
->chain_pos
;
52 field
.num_bits
= device
->ir_length
;
53 field
.out_value
= calloc(CEIL(field
.num_bits
, 8), 1);
54 buf_set_u32(field
.out_value
, 0, field
.num_bits
, new_instr
);
55 field
.out_mask
= NULL
;
56 field
.in_value
= NULL
;
57 field
.in_check_value
= NULL
;
58 field
.in_check_mask
= NULL
;
59 field
.in_handler
= NULL
;
60 field
.in_handler_priv
= NULL
;
64 if (caller_error_handler
)
66 jtag_set_check_value(&field
, NULL
, NULL
, caller_error_handler
);
70 error_handler_t error_handler
;
71 error_handler
.error_handler
= arm_jtag_set_instr_error_handler
;
72 error_handler
.error_handler_priv
= NULL
;
73 jtag_set_check_value(&field
, NULL
, NULL
, &error_handler
);
75 jtag_add_ir_scan(1, &field
, -1, NULL
);
78 free(field
.out_value
);
84 int arm_jtag_scann(arm_jtag_t
*jtag_info
, u32 new_scan_chain
)
86 if(jtag_info
->cur_scan_chain
!= new_scan_chain
)
88 #ifdef _ARM_JTAG_SCAN_N_CHECK_
89 u8 scan_n_check_value
= 1 << (jtag_info
->scann_size
- 1);
93 field
.device
= jtag_info
->chain_pos
;
94 field
.num_bits
= jtag_info
->scann_size
;
95 field
.out_value
= calloc(CEIL(field
.num_bits
, 8), 1);
96 buf_set_u32(field
.out_value
, 0, field
.num_bits
, new_scan_chain
);
97 field
.out_mask
= NULL
;
98 field
.in_value
= NULL
;
99 #ifdef _ARM_JTAG_SCAN_N_CHECK_
100 jtag_set_check_value(&field
, &scan_n_check_value
, NULL
, NULL
, NULL
);
102 field
.in_handler
= NULL
;
103 field
.in_handler_priv
= NULL
;
107 arm_jtag_set_instr(jtag_info
, jtag_info
->scann_instr
, NULL
);
108 jtag_add_dr_scan(1, &field
, -1, NULL
);
110 jtag_info
->cur_scan_chain
= new_scan_chain
;
112 free(field
.out_value
);
118 int arm_jtag_reset_callback(enum jtag_event event
, void *priv
)
120 arm_jtag_t
*jtag_info
= priv
;
122 if (event
== JTAG_TRST_ASSERTED
)
124 jtag_info
->cur_scan_chain
= 0;
130 int arm_jtag_setup_connection(arm_jtag_t
*jtag_info
)
132 jtag_info
->scann_instr
= 0x2;
133 jtag_info
->cur_scan_chain
= 0;
134 jtag_info
->intest_instr
= 0xc;
136 jtag_register_event_callback(arm_jtag_reset_callback
, jtag_info
);
141 /* read JTAG buffer into host-endian u32, flipping bit-order */
142 int arm_jtag_buf_to_u32_flip(u8
*in_buf
, void *priv
)
145 *dest
= flip_u32(le_to_h_u32(in_buf
), 32);
149 /* read JTAG buffer into little-endian u32, flipping bit-order */
150 int arm_jtag_buf_to_le32_flip(u8
*in_buf
, void *priv
)
152 h_u32_to_le(((u8
*)priv
), flip_u32(le_to_h_u32(in_buf
), 32));
156 /* read JTAG buffer into little-endian u16, flipping bit-order */
157 int arm_jtag_buf_to_le16_flip(u8
*in_buf
, void *priv
)
159 h_u16_to_le(((u8
*)priv
), flip_u32(le_to_h_u32(in_buf
), 32) & 0xffff);
163 /* read JTAG buffer into big-endian u32, flipping bit-order */
164 int arm_jtag_buf_to_be32_flip(u8
*in_buf
, void *priv
)
166 h_u32_to_be(((u8
*)priv
), flip_u32(le_to_h_u32(in_buf
), 32));
170 /* read JTAG buffer into big-endian u16, flipping bit-order */
171 int arm_jtag_buf_to_be16_flip(u8
*in_buf
, void *priv
)
173 h_u16_to_be(((u8
*)priv
), flip_u32(le_to_h_u32(in_buf
), 32) & 0xffff);
177 /* read JTAG buffer into u8, flipping bit-order */
178 int arm_jtag_buf_to_8_flip(u8
*in_buf
, void *priv
)
181 *dest
= flip_u32(le_to_h_u32(in_buf
), 32) & 0xff;
185 /* not-flipping variants */
186 /* read JTAG buffer into host-endian u32 */
187 int arm_jtag_buf_to_u32(u8
*in_buf
, void *priv
)
190 *dest
= le_to_h_u32(in_buf
);
194 /* read JTAG buffer into little-endian u32 */
195 int arm_jtag_buf_to_le32(u8
*in_buf
, void *priv
)
197 h_u32_to_le(((u8
*)priv
), le_to_h_u32(in_buf
));
201 /* read JTAG buffer into little-endian u16 */
202 int arm_jtag_buf_to_le16(u8
*in_buf
, void *priv
)
204 h_u16_to_le(((u8
*)priv
), le_to_h_u32(in_buf
) & 0xffff);
208 /* read JTAG buffer into big-endian u32 */
209 int arm_jtag_buf_to_be32(u8
*in_buf
, void *priv
)
211 h_u32_to_be(((u8
*)priv
), le_to_h_u32(in_buf
));
215 /* read JTAG buffer into big-endian u16 */
216 int arm_jtag_buf_to_be16(u8
*in_buf
, void *priv
)
218 h_u16_to_be(((u8
*)priv
), le_to_h_u32(in_buf
) & 0xffff);
222 /* read JTAG buffer into u8 */
223 int arm_jtag_buf_to_8(u8
*in_buf
, void *priv
)
226 *dest
= le_to_h_u32(in_buf
) & 0xff;
Linking to existing account procedure
If you already have an account and want to add another login method
you
MUST first sign in with your existing account and
then change URL to read
https://review.openocd.org/login/?link
to get to this page again but this time it'll work for linking. Thank you.
SSH host keys fingerprints
1024 SHA256:YKx8b7u5ZWdcbp7/4AeXNaqElP49m6QrwfXaqQGJAOk gerrit-code-review@openocd.zylin.com (DSA)
384 SHA256:jHIbSQa4REvwCFG4cq5LBlBLxmxSqelQPem/EXIrxjk gerrit-code-review@openocd.org (ECDSA)
521 SHA256:UAOPYkU9Fjtcao0Ul/Rrlnj/OsQvt+pgdYSZ4jOYdgs gerrit-code-review@openocd.org (ECDSA)
256 SHA256:A13M5QlnozFOvTllybRZH6vm7iSt0XLxbA48yfc2yfY gerrit-code-review@openocd.org (ECDSA)
256 SHA256:spYMBqEYoAOtK7yZBrcwE8ZpYt6b68Cfh9yEVetvbXg gerrit-code-review@openocd.org (ED25519)
+--[ED25519 256]--+
|=.. |
|+o.. . |
|*.o . . |
|+B . . . |
|Bo. = o S |
|Oo.+ + = |
|oB=.* = . o |
| =+=.+ + E |
|. .=o . o |
+----[SHA256]-----+
2048 SHA256:0Onrb7/PHjpo6iVZ7xQX2riKN83FJ3KGU0TvI0TaFG4 gerrit-code-review@openocd.zylin.com (RSA)