1 /***************************************************************************
2 * SWIM contributions by Ake Rehnman *
3 * Copyright (C) 2017 Ake Rehnman *
4 * ake.rehnman(at)gmail.com *
6 * Copyright (C) 2011-2012 by Mathias Kuester *
7 * Mathias Kuester <kesmtp@freenet.de> *
9 * Copyright (C) 2012 by Spencer Oliver *
10 * spen@spen-soft.co.uk *
12 * This code is based on https://github.com/texane/stlink *
14 * This program is free software; you can redistribute it and/or modify *
15 * it under the terms of the GNU General Public License as published by *
16 * the Free Software Foundation; either version 2 of the License, or *
17 * (at your option) any later version. *
19 * This program is distributed in the hope that it will be useful, *
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
22 * GNU General Public License for more details. *
24 * You should have received a copy of the GNU General Public License *
25 * along with this program. If not, see <http://www.gnu.org/licenses/>. *
26 ***************************************************************************/
32 /* project specific includes */
33 #include <helper/binarybuffer.h>
34 #include <helper/bits.h>
35 #include <jtag/interface.h>
36 #include <jtag/hla/hla_layout.h>
37 #include <jtag/hla/hla_transport.h>
38 #include <jtag/hla/hla_interface.h>
39 #include <target/target.h>
40 #include <transport/transport.h>
42 #include <target/cortex_m.h>
44 #include "libusb_common.h"
47 #define USE_LIBUSB_ASYNCIO
50 #define ENDPOINT_IN 0x80
51 #define ENDPOINT_OUT 0x00
53 #define STLINK_WRITE_TIMEOUT 1000
54 #define STLINK_READ_TIMEOUT 1000
56 #define STLINK_NULL_EP 0
57 #define STLINK_RX_EP (1|ENDPOINT_IN)
58 #define STLINK_TX_EP (2|ENDPOINT_OUT)
59 #define STLINK_TRACE_EP (3|ENDPOINT_IN)
61 #define STLINK_V2_1_TX_EP (1|ENDPOINT_OUT)
62 #define STLINK_V2_1_TRACE_EP (2|ENDPOINT_IN)
64 #define STLINK_SG_SIZE (31)
65 #define STLINK_DATA_SIZE (4096)
66 #define STLINK_CMD_SIZE_V2 (16)
67 #define STLINK_CMD_SIZE_V1 (10)
69 #define STLINK_V1_PID (0x3744)
70 #define STLINK_V2_PID (0x3748)
71 #define STLINK_V2_1_PID (0x374B)
72 #define STLINK_V2_1_NO_MSD_PID (0x3752)
73 #define STLINK_V3_USBLOADER_PID (0x374D)
74 #define STLINK_V3E_PID (0x374E)
75 #define STLINK_V3S_PID (0x374F)
76 #define STLINK_V3_2VCP_PID (0x3753)
79 * ST-Link/V1, ST-Link/V2 and ST-Link/V2.1 are full-speed USB devices and
80 * this limits the bulk packet size and the 8bit read/writes to max 64 bytes.
81 * STLINK-V3 is a high speed USB 2.0 and the limit is 512 bytes.
83 #define STLINK_MAX_RW8 (64)
84 #define STLINKV3_MAX_RW8 (512)
86 /* "WAIT" responses will be retried (with exponential backoff) at
87 * most this many times before failing to caller.
89 #define MAX_WAIT_RETRIES 8
91 enum stlink_jtag_api_version
{
92 STLINK_JTAG_API_V1
= 1,
98 struct stlink_usb_version
{
105 /** jtag api version supported */
106 enum stlink_jtag_api_version jtag_api
;
107 /** one bit for each feature supported. See macros STLINK_F_* */
112 struct stlink_usb_handle_s
{
114 struct jtag_libusb_device_handle
*fd
;
116 struct libusb_transfer
*trans
;
124 uint8_t cmdbuf
[STLINK_SG_SIZE
];
130 uint8_t databuf
[STLINK_DATA_SIZE
];
132 uint32_t max_mem_packet
;
134 enum hl_transports transport
;
136 struct stlink_usb_version version
;
143 /** whether SWO tracing is enabled or not */
145 /** trace module source clock */
148 /** reconnect is needed next time we try to query the
150 bool reconnect_pending
;
153 #define STLINK_SWIM_ERR_OK 0x00
154 #define STLINK_SWIM_BUSY 0x01
155 #define STLINK_DEBUG_ERR_OK 0x80
156 #define STLINK_DEBUG_ERR_FAULT 0x81
157 #define STLINK_SWD_AP_WAIT 0x10
158 #define STLINK_SWD_AP_FAULT 0x11
159 #define STLINK_SWD_AP_ERROR 0x12
160 #define STLINK_SWD_AP_PARITY_ERROR 0x13
161 #define STLINK_JTAG_GET_IDCODE_ERROR 0x09
162 #define STLINK_JTAG_WRITE_ERROR 0x0c
163 #define STLINK_JTAG_WRITE_VERIF_ERROR 0x0d
164 #define STLINK_SWD_DP_WAIT 0x14
165 #define STLINK_SWD_DP_FAULT 0x15
166 #define STLINK_SWD_DP_ERROR 0x16
167 #define STLINK_SWD_DP_PARITY_ERROR 0x17
169 #define STLINK_SWD_AP_WDATA_ERROR 0x18
170 #define STLINK_SWD_AP_STICKY_ERROR 0x19
171 #define STLINK_SWD_AP_STICKYORUN_ERROR 0x1a
173 #define STLINK_BAD_AP_ERROR 0x1d
175 #define STLINK_CORE_RUNNING 0x80
176 #define STLINK_CORE_HALTED 0x81
177 #define STLINK_CORE_STAT_UNKNOWN -1
179 #define STLINK_GET_VERSION 0xF1
180 #define STLINK_DEBUG_COMMAND 0xF2
181 #define STLINK_DFU_COMMAND 0xF3
182 #define STLINK_SWIM_COMMAND 0xF4
183 #define STLINK_GET_CURRENT_MODE 0xF5
184 #define STLINK_GET_TARGET_VOLTAGE 0xF7
186 #define STLINK_DEV_DFU_MODE 0x00
187 #define STLINK_DEV_MASS_MODE 0x01
188 #define STLINK_DEV_DEBUG_MODE 0x02
189 #define STLINK_DEV_SWIM_MODE 0x03
190 #define STLINK_DEV_BOOTLOADER_MODE 0x04
191 #define STLINK_DEV_UNKNOWN_MODE -1
193 #define STLINK_DFU_EXIT 0x07
196 STLINK_SWIM_ENTER_SEQ
197 1.3ms low then 750Hz then 1.5kHz
200 STM8 DM pulls reset pin low 50us
203 uint8_t (0=low|1=high)
210 send syncronization seq (16us low, response 64 clocks low)
212 #define STLINK_SWIM_ENTER 0x00
213 #define STLINK_SWIM_EXIT 0x01
214 #define STLINK_SWIM_READ_CAP 0x02
215 #define STLINK_SWIM_SPEED 0x03
216 #define STLINK_SWIM_ENTER_SEQ 0x04
217 #define STLINK_SWIM_GEN_RST 0x05
218 #define STLINK_SWIM_RESET 0x06
219 #define STLINK_SWIM_ASSERT_RESET 0x07
220 #define STLINK_SWIM_DEASSERT_RESET 0x08
221 #define STLINK_SWIM_READSTATUS 0x09
222 #define STLINK_SWIM_WRITEMEM 0x0a
223 #define STLINK_SWIM_READMEM 0x0b
224 #define STLINK_SWIM_READBUF 0x0c
226 #define STLINK_DEBUG_GETSTATUS 0x01
227 #define STLINK_DEBUG_FORCEDEBUG 0x02
228 #define STLINK_DEBUG_APIV1_RESETSYS 0x03
229 #define STLINK_DEBUG_APIV1_READALLREGS 0x04
230 #define STLINK_DEBUG_APIV1_READREG 0x05
231 #define STLINK_DEBUG_APIV1_WRITEREG 0x06
232 #define STLINK_DEBUG_READMEM_32BIT 0x07
233 #define STLINK_DEBUG_WRITEMEM_32BIT 0x08
234 #define STLINK_DEBUG_RUNCORE 0x09
235 #define STLINK_DEBUG_STEPCORE 0x0a
236 #define STLINK_DEBUG_APIV1_SETFP 0x0b
237 #define STLINK_DEBUG_READMEM_8BIT 0x0c
238 #define STLINK_DEBUG_WRITEMEM_8BIT 0x0d
239 #define STLINK_DEBUG_APIV1_CLEARFP 0x0e
240 #define STLINK_DEBUG_APIV1_WRITEDEBUGREG 0x0f
241 #define STLINK_DEBUG_APIV1_SETWATCHPOINT 0x10
243 #define STLINK_DEBUG_ENTER_JTAG_RESET 0x00
244 #define STLINK_DEBUG_ENTER_SWD_NO_RESET 0xa3
245 #define STLINK_DEBUG_ENTER_JTAG_NO_RESET 0xa4
247 #define STLINK_DEBUG_APIV1_ENTER 0x20
248 #define STLINK_DEBUG_EXIT 0x21
249 #define STLINK_DEBUG_READCOREID 0x22
251 #define STLINK_DEBUG_APIV2_ENTER 0x30
252 #define STLINK_DEBUG_APIV2_READ_IDCODES 0x31
253 #define STLINK_DEBUG_APIV2_RESETSYS 0x32
254 #define STLINK_DEBUG_APIV2_READREG 0x33
255 #define STLINK_DEBUG_APIV2_WRITEREG 0x34
256 #define STLINK_DEBUG_APIV2_WRITEDEBUGREG 0x35
257 #define STLINK_DEBUG_APIV2_READDEBUGREG 0x36
259 #define STLINK_DEBUG_APIV2_READALLREGS 0x3A
260 #define STLINK_DEBUG_APIV2_GETLASTRWSTATUS 0x3B
261 #define STLINK_DEBUG_APIV2_DRIVE_NRST 0x3C
263 #define STLINK_DEBUG_APIV2_GETLASTRWSTATUS2 0x3E
265 #define STLINK_DEBUG_APIV2_START_TRACE_RX 0x40
266 #define STLINK_DEBUG_APIV2_STOP_TRACE_RX 0x41
267 #define STLINK_DEBUG_APIV2_GET_TRACE_NB 0x42
268 #define STLINK_DEBUG_APIV2_SWD_SET_FREQ 0x43
269 #define STLINK_DEBUG_APIV2_JTAG_SET_FREQ 0x44
270 #define STLINK_DEBUG_APIV2_READ_DAP_REG 0x45
271 #define STLINK_DEBUG_APIV2_WRITE_DAP_REG 0x46
272 #define STLINK_DEBUG_APIV2_READMEM_16BIT 0x47
273 #define STLINK_DEBUG_APIV2_WRITEMEM_16BIT 0x48
275 #define STLINK_DEBUG_APIV2_INIT_AP 0x4B
276 #define STLINK_DEBUG_APIV2_CLOSE_AP_DBG 0x4C
278 #define STLINK_APIV3_SET_COM_FREQ 0x61
279 #define STLINK_APIV3_GET_COM_FREQ 0x62
281 #define STLINK_APIV3_GET_VERSION_EX 0xFB
283 #define STLINK_DEBUG_APIV2_DRIVE_NRST_LOW 0x00
284 #define STLINK_DEBUG_APIV2_DRIVE_NRST_HIGH 0x01
285 #define STLINK_DEBUG_APIV2_DRIVE_NRST_PULSE 0x02
287 #define STLINK_DEBUG_PORT_ACCESS 0xffff
289 #define STLINK_TRACE_SIZE 4096
290 #define STLINK_TRACE_MAX_HZ 2000000
292 #define STLINK_V3_MAX_FREQ_NB 10
296 STLINK_MODE_UNKNOWN
= 0,
299 STLINK_MODE_DEBUG_JTAG
,
300 STLINK_MODE_DEBUG_SWD
,
301 STLINK_MODE_DEBUG_SWIM
304 #define REQUEST_SENSE 0x03
305 #define REQUEST_SENSE_LENGTH 18
308 * Map the relevant features, quirks and workaround for specific firmware
311 #define STLINK_F_HAS_TRACE BIT(0)
312 #define STLINK_F_HAS_SWD_SET_FREQ BIT(1)
313 #define STLINK_F_HAS_JTAG_SET_FREQ BIT(2)
314 #define STLINK_F_HAS_MEM_16BIT BIT(3)
315 #define STLINK_F_HAS_GETLASTRWSTATUS2 BIT(4)
316 #define STLINK_F_HAS_DAP_REG BIT(5)
317 #define STLINK_F_QUIRK_JTAG_DP_READ BIT(6)
318 #define STLINK_F_HAS_AP_INIT BIT(7)
319 #define STLINK_F_HAS_DPBANKSEL BIT(8)
322 #define STLINK_F_HAS_TARGET_VOLT STLINK_F_HAS_TRACE
329 /* SWD clock speed */
330 static const struct speed_map stlink_khz_to_speed_map_swd
[] = {
332 {1800, 1}, /* default */
345 /* JTAG clock speed */
346 static const struct speed_map stlink_khz_to_speed_map_jtag
[] = {
351 {1125, 32}, /* default */
357 static void stlink_usb_init_buffer(void *handle
, uint8_t direction
, uint32_t size
);
358 static int stlink_swim_status(void *handle
);
359 void stlink_dump_speed_map(const struct speed_map
*map
, unsigned int map_size
);
360 static int stlink_get_com_freq(void *handle
, bool is_jtag
, struct speed_map
*map
);
361 static int stlink_speed(void *handle
, int khz
, bool query
);
364 static unsigned int stlink_usb_block(void *handle
)
366 struct stlink_usb_handle_s
*h
= handle
;
368 assert(handle
!= NULL
);
370 if (h
->version
.stlink
== 3)
371 return STLINKV3_MAX_RW8
;
373 return STLINK_MAX_RW8
;
378 #ifdef USE_LIBUSB_ASYNCIO
380 static LIBUSB_CALL
void sync_transfer_cb(struct libusb_transfer
*transfer
)
382 int *completed
= transfer
->user_data
;
384 /* caller interprets result and frees transfer */
388 static void sync_transfer_wait_for_completion(struct libusb_transfer
*transfer
)
390 int r
, *completed
= transfer
->user_data
;
392 /* Assuming a single libusb context exists. There no existing interface into this
393 * module to pass a libusb context.
395 struct libusb_context
*ctx
= NULL
;
397 while (!*completed
) {
398 r
= libusb_handle_events_completed(ctx
, completed
);
400 if (r
== LIBUSB_ERROR_INTERRUPTED
)
402 libusb_cancel_transfer(transfer
);
409 static int transfer_error_status(const struct libusb_transfer
*transfer
)
413 switch (transfer
->status
) {
414 case LIBUSB_TRANSFER_COMPLETED
:
417 case LIBUSB_TRANSFER_TIMED_OUT
:
418 r
= LIBUSB_ERROR_TIMEOUT
;
420 case LIBUSB_TRANSFER_STALL
:
421 r
= LIBUSB_ERROR_PIPE
;
423 case LIBUSB_TRANSFER_OVERFLOW
:
424 r
= LIBUSB_ERROR_OVERFLOW
;
426 case LIBUSB_TRANSFER_NO_DEVICE
:
427 r
= LIBUSB_ERROR_NO_DEVICE
;
429 case LIBUSB_TRANSFER_ERROR
:
430 case LIBUSB_TRANSFER_CANCELLED
:
434 r
= LIBUSB_ERROR_OTHER
;
448 size_t transfer_size
;
449 struct libusb_transfer
*transfer
;
452 static int jtag_libusb_bulk_transfer_n(
453 jtag_libusb_device_handle
* dev_handle
,
454 struct jtag_xfer
*transfers
,
459 int returnval
= ERROR_OK
;
462 for (size_t i
= 0; i
< n_transfers
; ++i
) {
463 transfers
[i
].retval
= 0;
464 transfers
[i
].completed
= 0;
465 transfers
[i
].transfer_size
= 0;
466 transfers
[i
].transfer
= libusb_alloc_transfer(0);
468 if (transfers
[i
].transfer
== NULL
) {
469 for (size_t j
= 0; j
< i
; ++j
)
470 libusb_free_transfer(transfers
[j
].transfer
);
472 LOG_DEBUG("ERROR, failed to alloc usb transfers");
473 for (size_t k
= 0; k
< n_transfers
; ++k
)
474 transfers
[k
].retval
= LIBUSB_ERROR_NO_MEM
;
479 for (size_t i
= 0; i
< n_transfers
; ++i
) {
480 libusb_fill_bulk_transfer(
481 transfers
[i
].transfer
,
483 transfers
[i
].ep
, transfers
[i
].buf
, transfers
[i
].size
,
484 sync_transfer_cb
, &transfers
[i
].completed
, timeout
);
485 transfers
[i
].transfer
->type
= LIBUSB_TRANSFER_TYPE_BULK
;
487 retval
= libusb_submit_transfer(transfers
[i
].transfer
);
489 LOG_DEBUG("ERROR, failed to submit transfer %zu, error %d", i
, retval
);
491 /* Probably no point continuing to submit transfers once a submission fails.
492 * As a result, tag all remaining transfers as errors.
494 for (size_t j
= i
; j
< n_transfers
; ++j
)
495 transfers
[j
].retval
= retval
;
497 returnval
= ERROR_FAIL
;
502 /* Wait for every submitted USB transfer to complete.
504 for (size_t i
= 0; i
< n_transfers
; ++i
) {
505 if (transfers
[i
].retval
== 0) {
506 sync_transfer_wait_for_completion(transfers
[i
].transfer
);
508 retval
= transfer_error_status(transfers
[i
].transfer
);
510 returnval
= ERROR_FAIL
;
511 transfers
[i
].retval
= retval
;
512 LOG_DEBUG("ERROR, transfer %zu failed, error %d", i
, retval
);
514 /* Assuming actual_length is only valid if there is no transfer error.
516 transfers
[i
].transfer_size
= transfers
[i
].transfer
->actual_length
;
520 libusb_free_transfer(transfers
[i
].transfer
);
521 transfers
[i
].transfer
= NULL
;
531 static int stlink_usb_xfer_v1_get_status(void *handle
)
533 struct stlink_usb_handle_s
*h
= handle
;
536 assert(handle
!= NULL
);
539 memset(h
->cmdbuf
, 0, STLINK_SG_SIZE
);
541 ret
= jtag_libusb_bulk_read(h
->fd
, h
->rx_ep
, (char *)h
->cmdbuf
, 13,
542 STLINK_READ_TIMEOUT
, &tr
);
548 t1
= buf_get_u32(h
->cmdbuf
, 0, 32);
551 if (t1
!= 0x53425355)
559 if (h
->cmdbuf
[12] != 0)
565 #ifdef USE_LIBUSB_ASYNCIO
566 static int stlink_usb_xfer_rw(void *handle
, int cmdsize
, const uint8_t *buf
, int size
)
568 struct stlink_usb_handle_s
*h
= handle
;
570 assert(handle
!= NULL
);
572 size_t n_transfers
= 0;
573 struct jtag_xfer transfers
[2];
575 memset(transfers
, 0, sizeof(transfers
));
577 transfers
[0].ep
= h
->tx_ep
;
578 transfers
[0].buf
= h
->cmdbuf
;
579 transfers
[0].size
= cmdsize
;
583 if (h
->direction
== h
->tx_ep
&& size
) {
584 transfers
[1].ep
= h
->tx_ep
;
585 transfers
[1].buf
= (uint8_t *)buf
;
586 transfers
[1].size
= size
;
589 } else if (h
->direction
== h
->rx_ep
&& size
) {
590 transfers
[1].ep
= h
->rx_ep
;
591 transfers
[1].buf
= (uint8_t *)buf
;
592 transfers
[1].size
= size
;
597 return jtag_libusb_bulk_transfer_n(
601 STLINK_WRITE_TIMEOUT
);
604 static int stlink_usb_xfer_rw(void *handle
, int cmdsize
, const uint8_t *buf
, int size
)
606 struct stlink_usb_handle_s
*h
= handle
;
609 assert(handle
!= NULL
);
611 ret
= jtag_libusb_bulk_write(h
->fd
, h
->tx_ep
, (char *)h
->cmdbuf
,
612 cmdsize
, STLINK_WRITE_TIMEOUT
, &tr
);
613 if (ret
|| tr
!= cmdsize
)
616 if (h
->direction
== h
->tx_ep
&& size
) {
617 ret
= jtag_libusb_bulk_write(h
->fd
, h
->tx_ep
, (char *)buf
,
618 size
, STLINK_WRITE_TIMEOUT
, &tr
);
619 if (ret
|| tr
!= size
) {
620 LOG_DEBUG("bulk write failed");
623 } else if (h
->direction
== h
->rx_ep
&& size
) {
624 ret
= jtag_libusb_bulk_read(h
->fd
, h
->rx_ep
, (char *)buf
,
625 size
, STLINK_READ_TIMEOUT
, &tr
);
626 if (ret
|| tr
!= size
) {
627 LOG_DEBUG("bulk read failed");
637 static int stlink_usb_xfer_v1_get_sense(void *handle
)
640 struct stlink_usb_handle_s
*h
= handle
;
642 assert(handle
!= NULL
);
644 stlink_usb_init_buffer(handle
, h
->rx_ep
, 16);
646 h
->cmdbuf
[h
->cmdidx
++] = REQUEST_SENSE
;
647 h
->cmdbuf
[h
->cmdidx
++] = 0;
648 h
->cmdbuf
[h
->cmdidx
++] = 0;
649 h
->cmdbuf
[h
->cmdidx
++] = 0;
650 h
->cmdbuf
[h
->cmdidx
++] = REQUEST_SENSE_LENGTH
;
652 res
= stlink_usb_xfer_rw(handle
, REQUEST_SENSE_LENGTH
, h
->databuf
, 16);
657 if (stlink_usb_xfer_v1_get_status(handle
) != ERROR_OK
)
664 transfers block in cmdbuf
665 <size> indicates number of bytes in the following
667 Ignore the (eventual) error code in the received packet.
669 static int stlink_usb_xfer_noerrcheck(void *handle
, const uint8_t *buf
, int size
)
671 int err
, cmdsize
= STLINK_CMD_SIZE_V2
;
672 struct stlink_usb_handle_s
*h
= handle
;
674 assert(handle
!= NULL
);
676 if (h
->version
.stlink
== 1) {
677 cmdsize
= STLINK_SG_SIZE
;
678 /* put length in bCBWCBLength */
679 h
->cmdbuf
[14] = h
->cmdidx
-15;
682 err
= stlink_usb_xfer_rw(handle
, cmdsize
, buf
, size
);
687 if (h
->version
.stlink
== 1) {
688 if (stlink_usb_xfer_v1_get_status(handle
) != ERROR_OK
) {
689 /* check csw status */
690 if (h
->cmdbuf
[12] == 1) {
691 LOG_DEBUG("get sense");
692 if (stlink_usb_xfer_v1_get_sense(handle
) != ERROR_OK
)
703 Converts an STLINK status code held in the first byte of a response
704 to an openocd error, logs any error/wait status as debug output.
706 static int stlink_usb_error_check(void *handle
)
708 struct stlink_usb_handle_s
*h
= handle
;
710 assert(handle
!= NULL
);
712 if (h
->transport
== HL_TRANSPORT_SWIM
) {
713 switch (h
->databuf
[0]) {
714 case STLINK_SWIM_ERR_OK
:
716 case STLINK_SWIM_BUSY
:
719 LOG_DEBUG("unknown/unexpected STLINK status code 0x%x", h
->databuf
[0]);
724 /* TODO: no error checking yet on api V1 */
725 if (h
->version
.jtag_api
== STLINK_JTAG_API_V1
)
726 h
->databuf
[0] = STLINK_DEBUG_ERR_OK
;
728 switch (h
->databuf
[0]) {
729 case STLINK_DEBUG_ERR_OK
:
731 case STLINK_DEBUG_ERR_FAULT
:
732 LOG_DEBUG("SWD fault response (0x%x)", STLINK_DEBUG_ERR_FAULT
);
734 case STLINK_SWD_AP_WAIT
:
735 LOG_DEBUG("wait status SWD_AP_WAIT (0x%x)", STLINK_SWD_AP_WAIT
);
737 case STLINK_SWD_DP_WAIT
:
738 LOG_DEBUG("wait status SWD_DP_WAIT (0x%x)", STLINK_SWD_DP_WAIT
);
740 case STLINK_JTAG_GET_IDCODE_ERROR
:
741 LOG_DEBUG("STLINK_JTAG_GET_IDCODE_ERROR");
743 case STLINK_JTAG_WRITE_ERROR
:
744 LOG_DEBUG("Write error");
746 case STLINK_JTAG_WRITE_VERIF_ERROR
:
747 LOG_DEBUG("Write verify error, ignoring");
749 case STLINK_SWD_AP_FAULT
:
750 /* git://git.ac6.fr/openocd commit 657e3e885b9ee10
751 * returns ERROR_OK with the comment:
752 * Change in error status when reading outside RAM.
753 * This fix allows CDT plugin to visualize memory.
755 LOG_DEBUG("STLINK_SWD_AP_FAULT");
757 case STLINK_SWD_AP_ERROR
:
758 LOG_DEBUG("STLINK_SWD_AP_ERROR");
760 case STLINK_SWD_AP_PARITY_ERROR
:
761 LOG_DEBUG("STLINK_SWD_AP_PARITY_ERROR");
763 case STLINK_SWD_DP_FAULT
:
764 LOG_DEBUG("STLINK_SWD_DP_FAULT");
766 case STLINK_SWD_DP_ERROR
:
767 LOG_DEBUG("STLINK_SWD_DP_ERROR");
769 case STLINK_SWD_DP_PARITY_ERROR
:
770 LOG_DEBUG("STLINK_SWD_DP_PARITY_ERROR");
772 case STLINK_SWD_AP_WDATA_ERROR
:
773 LOG_DEBUG("STLINK_SWD_AP_WDATA_ERROR");
775 case STLINK_SWD_AP_STICKY_ERROR
:
776 LOG_DEBUG("STLINK_SWD_AP_STICKY_ERROR");
778 case STLINK_SWD_AP_STICKYORUN_ERROR
:
779 LOG_DEBUG("STLINK_SWD_AP_STICKYORUN_ERROR");
781 case STLINK_BAD_AP_ERROR
:
782 LOG_DEBUG("STLINK_BAD_AP_ERROR");
785 LOG_DEBUG("unknown/unexpected STLINK status code 0x%x", h
->databuf
[0]);
791 * Wrapper around stlink_usb_xfer_noerrcheck()
792 * to check the error code in the received packet
794 static int stlink_usb_xfer_errcheck(void *handle
, const uint8_t *buf
, int size
)
800 retval
= stlink_usb_xfer_noerrcheck(handle
, buf
, size
);
801 if (retval
!= ERROR_OK
)
804 return stlink_usb_error_check(handle
);
807 /** Issue an STLINK command via USB transfer, with retries on any wait status responses.
809 Works for commands where the STLINK_DEBUG status is returned in the first
810 byte of the response packet. For SWIM a SWIM_READSTATUS is requested instead.
812 Returns an openocd result code.
814 static int stlink_cmd_allow_retry(void *handle
, const uint8_t *buf
, int size
)
818 struct stlink_usb_handle_s
*h
= handle
;
821 if ((h
->transport
!= HL_TRANSPORT_SWIM
) || !retries
) {
822 res
= stlink_usb_xfer_noerrcheck(handle
, buf
, size
);
827 if (h
->transport
== HL_TRANSPORT_SWIM
) {
828 res
= stlink_swim_status(handle
);
833 res
= stlink_usb_error_check(handle
);
834 if (res
== ERROR_WAIT
&& retries
< MAX_WAIT_RETRIES
) {
835 useconds_t delay_us
= (1<<retries
++) * 1000;
836 LOG_DEBUG("stlink_cmd_allow_retry ERROR_WAIT, retry %d, delaying %u microseconds", retries
, delay_us
);
845 static int stlink_usb_read_trace(void *handle
, const uint8_t *buf
, int size
)
847 struct stlink_usb_handle_s
*h
= handle
;
850 assert(handle
!= NULL
);
852 assert(h
->version
.flags
& STLINK_F_HAS_TRACE
);
854 ret
= jtag_libusb_bulk_read(h
->fd
, h
->trace_ep
, (char *)buf
, size
,
855 STLINK_READ_TIMEOUT
, &tr
);
856 if (ret
|| tr
!= size
) {
857 LOG_ERROR("bulk trace read failed");
865 this function writes transfer length in
866 the right place in the cb
868 static void stlink_usb_set_cbw_transfer_datalength(void *handle
, uint32_t size
)
870 struct stlink_usb_handle_s
*h
= handle
;
872 buf_set_u32(h
->cmdbuf
+8, 0, 32, size
);
875 static void stlink_usb_xfer_v1_create_cmd(void *handle
, uint8_t direction
, uint32_t size
)
877 struct stlink_usb_handle_s
*h
= handle
;
879 /* fill the send buffer */
880 strcpy((char *)h
->cmdbuf
, "USBC");
882 /* csw tag not used */
883 buf_set_u32(h
->cmdbuf
+h
->cmdidx
, 0, 32, 0);
885 /* cbw data transfer length (in the following data phase in or out) */
886 buf_set_u32(h
->cmdbuf
+h
->cmdidx
, 0, 32, size
);
889 h
->cmdbuf
[h
->cmdidx
++] = (direction
== h
->rx_ep
? ENDPOINT_IN
: ENDPOINT_OUT
);
890 h
->cmdbuf
[h
->cmdidx
++] = 0; /* lun */
891 /* cdb clength (is filled in at xfer) */
892 h
->cmdbuf
[h
->cmdidx
++] = 0;
896 static void stlink_usb_init_buffer(void *handle
, uint8_t direction
, uint32_t size
)
898 struct stlink_usb_handle_s
*h
= handle
;
900 h
->direction
= direction
;
904 memset(h
->cmdbuf
, 0, STLINK_SG_SIZE
);
905 memset(h
->databuf
, 0, STLINK_DATA_SIZE
);
907 if (h
->version
.stlink
== 1)
908 stlink_usb_xfer_v1_create_cmd(handle
, direction
, size
);
912 static int stlink_usb_version(void *handle
)
917 uint8_t v
, x
, y
, jtag
, swim
, msd
, bridge
= 0;
918 char v_str
[5 * (1 + 3) + 1]; /* VvJjMmBbSs */
920 struct stlink_usb_handle_s
*h
= handle
;
922 assert(handle
!= NULL
);
924 stlink_usb_init_buffer(handle
, h
->rx_ep
, 6);
926 h
->cmdbuf
[h
->cmdidx
++] = STLINK_GET_VERSION
;
928 res
= stlink_usb_xfer_noerrcheck(handle
, h
->databuf
, 6);
933 version
= be_to_h_u16(h
->databuf
);
934 v
= (version
>> 12) & 0x0f;
935 x
= (version
>> 6) & 0x3f;
938 h
->vid
= le_to_h_u16(h
->databuf
+ 2);
939 h
->pid
= le_to_h_u16(h
->databuf
+ 4);
942 case STLINK_V2_1_PID
:
943 case STLINK_V2_1_NO_MSD_PID
:
944 if ((x
<= 22 && y
== 7) || (x
>= 25 && y
>= 7 && y
<= 12)) {
945 /* MxSy : STM8 V2.1 - SWIM only */
950 /* JxMy : STM32 V2.1 - JTAG/SWD only */
963 /* STLINK-V3 requires a specific command */
964 if (v
== 3 && x
== 0 && y
== 0) {
965 stlink_usb_init_buffer(handle
, h
->rx_ep
, 16);
967 h
->cmdbuf
[h
->cmdidx
++] = STLINK_APIV3_GET_VERSION_EX
;
969 res
= stlink_usb_xfer_noerrcheck(handle
, h
->databuf
, 12);
974 swim
= h
->databuf
[1];
975 jtag
= h
->databuf
[2];
977 bridge
= h
->databuf
[4];
978 h
->vid
= le_to_h_u16(h
->databuf
+ 8);
979 h
->pid
= le_to_h_u16(h
->databuf
+ 10);
982 h
->version
.stlink
= v
;
983 h
->version
.jtag
= jtag
;
984 h
->version
.swim
= swim
;
987 switch (h
->version
.stlink
) {
989 /* ST-LINK/V1 from J11 switch to api-v2 (and support SWD) */
990 if (h
->version
.jtag
>= 11)
991 h
->version
.jtag_api
= STLINK_JTAG_API_V2
;
993 h
->version
.jtag_api
= STLINK_JTAG_API_V1
;
997 /* all ST-LINK/V2 and ST-Link/V2.1 use api-v2 */
998 h
->version
.jtag_api
= STLINK_JTAG_API_V2
;
1000 /* API for trace from J13 */
1001 /* API for target voltage from J13 */
1002 if (h
->version
.jtag
>= 13)
1003 flags
|= STLINK_F_HAS_TRACE
;
1005 /* preferred API to get last R/W status from J15 */
1006 if (h
->version
.jtag
>= 15)
1007 flags
|= STLINK_F_HAS_GETLASTRWSTATUS2
;
1009 /* API to set SWD frequency from J22 */
1010 if (h
->version
.jtag
>= 22)
1011 flags
|= STLINK_F_HAS_SWD_SET_FREQ
;
1013 /* API to set JTAG frequency from J24 */
1014 /* API to access DAP registers from J24 */
1015 if (h
->version
.jtag
>= 24) {
1016 flags
|= STLINK_F_HAS_JTAG_SET_FREQ
;
1017 flags
|= STLINK_F_HAS_DAP_REG
;
1020 /* Quirk for read DP in JTAG mode (V2 only) from J24, fixed in J32 */
1021 if (h
->version
.jtag
>= 24 && h
->version
.jtag
< 32)
1022 flags
|= STLINK_F_QUIRK_JTAG_DP_READ
;
1024 /* API to read/write memory at 16 bit from J26 */
1025 if (h
->version
.jtag
>= 26)
1026 flags
|= STLINK_F_HAS_MEM_16BIT
;
1028 /* API required to init AP before any AP access from J28 */
1029 if (h
->version
.jtag
>= 28)
1030 flags
|= STLINK_F_HAS_AP_INIT
;
1032 /* Banked regs (DPv1 & DPv2) support from V2J32 */
1033 if (h
->version
.jtag
>= 32)
1034 flags
|= STLINK_F_HAS_DPBANKSEL
;
1038 /* all STLINK-V3 use api-v3 */
1039 h
->version
.jtag_api
= STLINK_JTAG_API_V3
;
1041 /* STLINK-V3 is a superset of ST-LINK/V2 */
1044 /* API for target voltage */
1045 flags
|= STLINK_F_HAS_TRACE
;
1047 /* preferred API to get last R/W status */
1048 flags
|= STLINK_F_HAS_GETLASTRWSTATUS2
;
1050 /* API to access DAP registers */
1051 flags
|= STLINK_F_HAS_DAP_REG
;
1053 /* API to read/write memory at 16 bit */
1054 flags
|= STLINK_F_HAS_MEM_16BIT
;
1056 /* API required to init AP before any AP access */
1057 flags
|= STLINK_F_HAS_AP_INIT
;
1059 /* Banked regs (DPv1 & DPv2) support from V3J2 */
1060 if (h
->version
.jtag
>= 2)
1061 flags
|= STLINK_F_HAS_DPBANKSEL
;
1067 h
->version
.flags
= flags
;
1070 p
+= sprintf(p
, "V%d", v
);
1072 p
+= sprintf(p
, "J%d", jtag
);
1074 p
+= sprintf(p
, "M%d", msd
);
1076 p
+= sprintf(p
, "B%d", bridge
);
1078 sprintf(p
, "S%d", swim
);
1080 LOG_INFO("STLINK %s (API v%d) VID:PID %04X:%04X",
1082 h
->version
.jtag_api
,
1089 static int stlink_usb_check_voltage(void *handle
, float *target_voltage
)
1091 struct stlink_usb_handle_s
*h
= handle
;
1092 uint32_t adc_results
[2];
1094 /* no error message, simply quit with error */
1095 if (!(h
->version
.flags
& STLINK_F_HAS_TARGET_VOLT
))
1096 return ERROR_COMMAND_NOTFOUND
;
1098 stlink_usb_init_buffer(handle
, h
->rx_ep
, 8);
1100 h
->cmdbuf
[h
->cmdidx
++] = STLINK_GET_TARGET_VOLTAGE
;
1102 int result
= stlink_usb_xfer_noerrcheck(handle
, h
->databuf
, 8);
1104 if (result
!= ERROR_OK
)
1107 /* convert result */
1108 adc_results
[0] = le_to_h_u32(h
->databuf
);
1109 adc_results
[1] = le_to_h_u32(h
->databuf
+ 4);
1111 *target_voltage
= 0;
1114 *target_voltage
= 2 * ((float)adc_results
[1]) * (float)(1.2 / adc_results
[0]);
1116 LOG_INFO("Target voltage: %f", (double)*target_voltage
);
1121 static int stlink_usb_set_swdclk(void *handle
, uint16_t clk_divisor
)
1123 struct stlink_usb_handle_s
*h
= handle
;
1125 assert(handle
!= NULL
);
1127 if (!(h
->version
.flags
& STLINK_F_HAS_SWD_SET_FREQ
))
1128 return ERROR_COMMAND_NOTFOUND
;
1130 stlink_usb_init_buffer(handle
, h
->rx_ep
, 2);
1132 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
1133 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_SWD_SET_FREQ
;
1134 h_u16_to_le(h
->cmdbuf
+h
->cmdidx
, clk_divisor
);
1137 int result
= stlink_cmd_allow_retry(handle
, h
->databuf
, 2);
1139 if (result
!= ERROR_OK
)
1145 static int stlink_usb_set_jtagclk(void *handle
, uint16_t clk_divisor
)
1147 struct stlink_usb_handle_s
*h
= handle
;
1149 assert(handle
!= NULL
);
1151 if (!(h
->version
.flags
& STLINK_F_HAS_JTAG_SET_FREQ
))
1152 return ERROR_COMMAND_NOTFOUND
;
1154 stlink_usb_init_buffer(handle
, h
->rx_ep
, 2);
1156 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
1157 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_JTAG_SET_FREQ
;
1158 h_u16_to_le(h
->cmdbuf
+h
->cmdidx
, clk_divisor
);
1161 int result
= stlink_cmd_allow_retry(handle
, h
->databuf
, 2);
1163 if (result
!= ERROR_OK
)
1170 static int stlink_usb_current_mode(void *handle
, uint8_t *mode
)
1173 struct stlink_usb_handle_s
*h
= handle
;
1175 assert(handle
!= NULL
);
1177 stlink_usb_init_buffer(handle
, h
->rx_ep
, 2);
1179 h
->cmdbuf
[h
->cmdidx
++] = STLINK_GET_CURRENT_MODE
;
1181 res
= stlink_usb_xfer_noerrcheck(handle
, h
->databuf
, 2);
1183 if (res
!= ERROR_OK
)
1186 *mode
= h
->databuf
[0];
1192 static int stlink_usb_mode_enter(void *handle
, enum stlink_mode type
)
1195 struct stlink_usb_handle_s
*h
= handle
;
1197 assert(handle
!= NULL
);
1199 /* on api V2 we are able the read the latest command
1201 * TODO: we need the test on api V1 too
1203 if (h
->version
.jtag_api
!= STLINK_JTAG_API_V1
)
1206 stlink_usb_init_buffer(handle
, h
->rx_ep
, rx_size
);
1209 case STLINK_MODE_DEBUG_JTAG
:
1210 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
1211 if (h
->version
.jtag_api
== STLINK_JTAG_API_V1
)
1212 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV1_ENTER
;
1214 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_ENTER
;
1215 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_ENTER_JTAG_NO_RESET
;
1217 case STLINK_MODE_DEBUG_SWD
:
1218 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
1219 if (h
->version
.jtag_api
== STLINK_JTAG_API_V1
)
1220 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV1_ENTER
;
1222 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_ENTER
;
1223 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_ENTER_SWD_NO_RESET
;
1225 case STLINK_MODE_DEBUG_SWIM
:
1226 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_COMMAND
;
1227 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_ENTER
;
1228 /* no answer for this function... */
1231 case STLINK_MODE_DFU
:
1232 case STLINK_MODE_MASS
:
1237 return stlink_cmd_allow_retry(handle
, h
->databuf
, rx_size
);
1241 static int stlink_usb_mode_leave(void *handle
, enum stlink_mode type
)
1244 struct stlink_usb_handle_s
*h
= handle
;
1246 assert(handle
!= NULL
);
1248 stlink_usb_init_buffer(handle
, STLINK_NULL_EP
, 0);
1251 case STLINK_MODE_DEBUG_JTAG
:
1252 case STLINK_MODE_DEBUG_SWD
:
1253 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
1254 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_EXIT
;
1256 case STLINK_MODE_DEBUG_SWIM
:
1257 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_COMMAND
;
1258 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_EXIT
;
1260 case STLINK_MODE_DFU
:
1261 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DFU_COMMAND
;
1262 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DFU_EXIT
;
1264 case STLINK_MODE_MASS
:
1269 res
= stlink_usb_xfer_noerrcheck(handle
, 0, 0);
1271 if (res
!= ERROR_OK
)
1277 static int stlink_usb_assert_srst(void *handle
, int srst
);
1279 static enum stlink_mode
stlink_get_mode(enum hl_transports t
)
1282 case HL_TRANSPORT_SWD
:
1283 return STLINK_MODE_DEBUG_SWD
;
1284 case HL_TRANSPORT_JTAG
:
1285 return STLINK_MODE_DEBUG_JTAG
;
1286 case HL_TRANSPORT_SWIM
:
1287 return STLINK_MODE_DEBUG_SWIM
;
1289 return STLINK_MODE_UNKNOWN
;
1294 static int stlink_usb_init_mode(void *handle
, bool connect_under_reset
, int initial_interface_speed
)
1298 enum stlink_mode emode
;
1299 struct stlink_usb_handle_s
*h
= handle
;
1301 assert(handle
!= NULL
);
1303 res
= stlink_usb_current_mode(handle
, &mode
);
1305 if (res
!= ERROR_OK
)
1308 LOG_DEBUG("MODE: 0x%02X", mode
);
1310 /* try to exit current mode */
1312 case STLINK_DEV_DFU_MODE
:
1313 emode
= STLINK_MODE_DFU
;
1315 case STLINK_DEV_DEBUG_MODE
:
1316 emode
= STLINK_MODE_DEBUG_SWD
;
1318 case STLINK_DEV_SWIM_MODE
:
1319 emode
= STLINK_MODE_DEBUG_SWIM
;
1321 case STLINK_DEV_BOOTLOADER_MODE
:
1322 case STLINK_DEV_MASS_MODE
:
1324 emode
= STLINK_MODE_UNKNOWN
;
1328 if (emode
!= STLINK_MODE_UNKNOWN
) {
1329 res
= stlink_usb_mode_leave(handle
, emode
);
1331 if (res
!= ERROR_OK
)
1335 res
= stlink_usb_current_mode(handle
, &mode
);
1337 if (res
!= ERROR_OK
)
1340 /* we check the target voltage here as an aid to debugging connection problems.
1341 * the stlink requires the target Vdd to be connected for reliable debugging.
1342 * this cmd is supported in all modes except DFU
1344 if (mode
!= STLINK_DEV_DFU_MODE
) {
1346 float target_voltage
;
1348 /* check target voltage (if supported) */
1349 res
= stlink_usb_check_voltage(h
, &target_voltage
);
1351 if (res
!= ERROR_OK
) {
1352 if (res
!= ERROR_COMMAND_NOTFOUND
)
1353 LOG_ERROR("voltage check failed");
1354 /* attempt to continue as it is not a catastrophic failure */
1356 /* check for a sensible target voltage, operating range is 1.65-5.5v
1357 * according to datasheet */
1358 if (target_voltage
< 1.5)
1359 LOG_ERROR("target voltage may be too low for reliable debugging");
1363 LOG_DEBUG("MODE: 0x%02X", mode
);
1365 /* set selected mode */
1366 emode
= stlink_get_mode(h
->transport
);
1368 if (emode
== STLINK_MODE_UNKNOWN
) {
1369 LOG_ERROR("selected mode (transport) not supported");
1373 /* set the speed before entering the mode, as the chip discovery phase should be done at this speed too */
1374 if (h
->transport
== HL_TRANSPORT_JTAG
) {
1375 if (h
->version
.flags
& STLINK_F_HAS_JTAG_SET_FREQ
) {
1376 stlink_dump_speed_map(stlink_khz_to_speed_map_jtag
, ARRAY_SIZE(stlink_khz_to_speed_map_jtag
));
1377 stlink_speed(h
, initial_interface_speed
, false);
1379 } else if (h
->transport
== HL_TRANSPORT_SWD
) {
1380 if (h
->version
.flags
& STLINK_F_HAS_SWD_SET_FREQ
) {
1381 stlink_dump_speed_map(stlink_khz_to_speed_map_swd
, ARRAY_SIZE(stlink_khz_to_speed_map_swd
));
1382 stlink_speed(h
, initial_interface_speed
, false);
1386 if (h
->version
.jtag_api
== STLINK_JTAG_API_V3
) {
1387 struct speed_map map
[STLINK_V3_MAX_FREQ_NB
];
1389 stlink_get_com_freq(h
, (h
->transport
== HL_TRANSPORT_JTAG
), map
);
1390 stlink_dump_speed_map(map
, ARRAY_SIZE(map
));
1391 stlink_speed(h
, initial_interface_speed
, false);
1394 /* preliminary SRST assert:
1395 * We want SRST is asserted before activating debug signals (mode_enter).
1396 * As the required mode has not been set, the adapter may not know what pin to use.
1397 * Tested firmware STLINK v2 JTAG v29 API v2 SWIM v0 uses T_NRST pin by default
1398 * Tested firmware STLINK v2 JTAG v27 API v2 SWIM v6 uses T_NRST pin by default
1399 * after power on, SWIM_RST stays unchanged */
1400 if (connect_under_reset
&& emode
!= STLINK_MODE_DEBUG_SWIM
)
1401 stlink_usb_assert_srst(handle
, 0);
1402 /* do not check the return status here, we will
1403 proceed and enter the desired mode below
1404 and try asserting srst again. */
1406 res
= stlink_usb_mode_enter(handle
, emode
);
1407 if (res
!= ERROR_OK
)
1410 /* assert SRST again: a little bit late but now the adapter knows for sure what pin to use */
1411 if (connect_under_reset
) {
1412 res
= stlink_usb_assert_srst(handle
, 0);
1413 if (res
!= ERROR_OK
)
1417 res
= stlink_usb_current_mode(handle
, &mode
);
1419 if (res
!= ERROR_OK
)
1422 LOG_DEBUG("MODE: 0x%02X", mode
);
1427 /* request status from last swim request */
1428 static int stlink_swim_status(void *handle
)
1430 struct stlink_usb_handle_s
*h
= handle
;
1433 stlink_usb_init_buffer(handle
, h
->rx_ep
, 4);
1434 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_COMMAND
;
1435 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_READSTATUS
;
1436 /* error is checked by the caller */
1437 res
= stlink_usb_xfer_noerrcheck(handle
, h
->databuf
, 4);
1438 if (res
!= ERROR_OK
)
1443 the purpose of this function is unknown...
1444 capabilites? anyway for swim v6 it returns
1447 __attribute__((unused
))
1448 static int stlink_swim_cap(void *handle
, uint8_t *cap
)
1450 struct stlink_usb_handle_s
*h
= handle
;
1453 stlink_usb_init_buffer(handle
, h
->rx_ep
, 8);
1454 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_COMMAND
;
1455 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_READ_CAP
;
1456 h
->cmdbuf
[h
->cmdidx
++] = 0x01;
1457 res
= stlink_usb_xfer_noerrcheck(handle
, h
->databuf
, 8);
1458 if (res
!= ERROR_OK
)
1460 memcpy(cap
, h
->databuf
, 8);
1464 /* debug dongle assert/deassert sreset line */
1465 static int stlink_swim_assert_reset(void *handle
, int reset
)
1467 struct stlink_usb_handle_s
*h
= handle
;
1470 stlink_usb_init_buffer(handle
, h
->rx_ep
, 0);
1471 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_COMMAND
;
1473 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_ASSERT_RESET
;
1475 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_DEASSERT_RESET
;
1476 res
= stlink_cmd_allow_retry(handle
, h
->databuf
, 0);
1477 if (res
!= ERROR_OK
)
1484 1.3ms low then 750Hz then 1.5kHz
1486 static int stlink_swim_enter(void *handle
)
1488 struct stlink_usb_handle_s
*h
= handle
;
1491 stlink_usb_init_buffer(handle
, h
->rx_ep
, 0);
1492 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_COMMAND
;
1493 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_ENTER_SEQ
;
1494 res
= stlink_cmd_allow_retry(handle
, h
->databuf
, 0);
1495 if (res
!= ERROR_OK
)
1500 /* switch high/low speed swim */
1501 static int stlink_swim_speed(void *handle
, int speed
)
1503 struct stlink_usb_handle_s
*h
= handle
;
1506 stlink_usb_init_buffer(handle
, h
->rx_ep
, 0);
1507 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_COMMAND
;
1508 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_SPEED
;
1510 h
->cmdbuf
[h
->cmdidx
++] = 1;
1512 h
->cmdbuf
[h
->cmdidx
++] = 0;
1513 res
= stlink_cmd_allow_retry(handle
, h
->databuf
, 0);
1514 if (res
!= ERROR_OK
)
1520 initiate srst from swim.
1521 nrst is pulled low for 50us.
1523 static int stlink_swim_generate_rst(void *handle
)
1525 struct stlink_usb_handle_s
*h
= handle
;
1528 stlink_usb_init_buffer(handle
, h
->rx_ep
, 0);
1529 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_COMMAND
;
1530 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_GEN_RST
;
1531 res
= stlink_cmd_allow_retry(handle
, h
->databuf
, 0);
1532 if (res
!= ERROR_OK
)
1538 send resyncronize sequence
1539 swim is pulled low for 16us
1540 reply is 64 clks low
1542 static int stlink_swim_resync(void *handle
)
1544 struct stlink_usb_handle_s
*h
= handle
;
1547 stlink_usb_init_buffer(handle
, h
->rx_ep
, 0);
1548 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_COMMAND
;
1549 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_RESET
;
1550 res
= stlink_cmd_allow_retry(handle
, h
->databuf
, 0);
1551 if (res
!= ERROR_OK
)
1556 static int stlink_swim_writebytes(void *handle
, uint32_t addr
, uint32_t len
, const uint8_t *data
)
1558 struct stlink_usb_handle_s
*h
= handle
;
1561 unsigned int datalen
= 0;
1562 int cmdsize
= STLINK_CMD_SIZE_V2
;
1564 if (len
> STLINK_DATA_SIZE
)
1567 if (h
->version
.stlink
== 1)
1568 cmdsize
= STLINK_SG_SIZE
;
1570 stlink_usb_init_buffer(handle
, h
->tx_ep
, 0);
1571 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_COMMAND
;
1572 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_WRITEMEM
;
1573 h_u16_to_be(h
->cmdbuf
+h
->cmdidx
, len
);
1575 h_u32_to_be(h
->cmdbuf
+h
->cmdidx
, addr
);
1577 for (i
= 0; i
< len
; i
++) {
1578 if (h
->cmdidx
== cmdsize
)
1579 h
->databuf
[datalen
++] = *(data
++);
1581 h
->cmdbuf
[h
->cmdidx
++] = *(data
++);
1583 if (h
->version
.stlink
== 1)
1584 stlink_usb_set_cbw_transfer_datalength(handle
, datalen
);
1586 res
= stlink_cmd_allow_retry(handle
, h
->databuf
, datalen
);
1587 if (res
!= ERROR_OK
)
1592 static int stlink_swim_readbytes(void *handle
, uint32_t addr
, uint32_t len
, uint8_t *data
)
1594 struct stlink_usb_handle_s
*h
= handle
;
1597 if (len
> STLINK_DATA_SIZE
)
1600 stlink_usb_init_buffer(handle
, h
->rx_ep
, 0);
1601 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_COMMAND
;
1602 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_READMEM
;
1603 h_u16_to_be(h
->cmdbuf
+h
->cmdidx
, len
);
1605 h_u32_to_be(h
->cmdbuf
+h
->cmdidx
, addr
);
1607 res
= stlink_cmd_allow_retry(handle
, h
->databuf
, 0);
1608 if (res
!= ERROR_OK
)
1611 stlink_usb_init_buffer(handle
, h
->rx_ep
, len
);
1612 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_COMMAND
;
1613 h
->cmdbuf
[h
->cmdidx
++] = STLINK_SWIM_READBUF
;
1614 res
= stlink_usb_xfer_noerrcheck(handle
, data
, len
);
1615 if (res
!= ERROR_OK
)
1622 static int stlink_usb_idcode(void *handle
, uint32_t *idcode
)
1625 struct stlink_usb_handle_s
*h
= handle
;
1627 assert(handle
!= NULL
);
1629 /* there is no swim read core id cmd */
1630 if (h
->transport
== HL_TRANSPORT_SWIM
) {
1635 stlink_usb_init_buffer(handle
, h
->rx_ep
, 12);
1637 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
1638 if (h
->version
.jtag_api
== STLINK_JTAG_API_V1
) {
1639 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_READCOREID
;
1641 res
= stlink_usb_xfer_noerrcheck(handle
, h
->databuf
, 4);
1644 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_READ_IDCODES
;
1646 res
= stlink_usb_xfer_errcheck(handle
, h
->databuf
, 12);
1650 if (res
!= ERROR_OK
)
1653 *idcode
= le_to_h_u32(h
->databuf
+ offset
);
1655 LOG_DEBUG("IDCODE: 0x%08" PRIX32
, *idcode
);
1660 static int stlink_usb_v2_read_debug_reg(void *handle
, uint32_t addr
, uint32_t *val
)
1662 struct stlink_usb_handle_s
*h
= handle
;
1665 assert(handle
!= NULL
);
1667 stlink_usb_init_buffer(handle
, h
->rx_ep
, 8);
1669 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
1670 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_READDEBUGREG
;
1671 h_u32_to_le(h
->cmdbuf
+h
->cmdidx
, addr
);
1674 res
= stlink_cmd_allow_retry(handle
, h
->databuf
, 8);
1675 if (res
!= ERROR_OK
)
1678 *val
= le_to_h_u32(h
->databuf
+ 4);
1682 static int stlink_usb_write_debug_reg(void *handle
, uint32_t addr
, uint32_t val
)
1684 struct stlink_usb_handle_s
*h
= handle
;
1686 assert(handle
!= NULL
);
1688 stlink_usb_init_buffer(handle
, h
->rx_ep
, 2);
1690 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
1691 if (h
->version
.jtag_api
== STLINK_JTAG_API_V1
)
1692 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV1_WRITEDEBUGREG
;
1694 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_WRITEDEBUGREG
;
1695 h_u32_to_le(h
->cmdbuf
+h
->cmdidx
, addr
);
1697 h_u32_to_le(h
->cmdbuf
+h
->cmdidx
, val
);
1700 return stlink_cmd_allow_retry(handle
, h
->databuf
, 2);
1704 static int stlink_usb_trace_read(void *handle
, uint8_t *buf
, size_t *size
)
1706 struct stlink_usb_handle_s
*h
= handle
;
1708 assert(handle
!= NULL
);
1710 if (h
->trace
.enabled
&& (h
->version
.flags
& STLINK_F_HAS_TRACE
)) {
1713 stlink_usb_init_buffer(handle
, h
->rx_ep
, 10);
1715 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
1716 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_GET_TRACE_NB
;
1718 res
= stlink_usb_xfer_noerrcheck(handle
, h
->databuf
, 2);
1719 if (res
!= ERROR_OK
)
1722 size_t bytes_avail
= le_to_h_u16(h
->databuf
);
1723 *size
= bytes_avail
< *size
? bytes_avail
: *size
- 1;
1726 res
= stlink_usb_read_trace(handle
, buf
, *size
);
1727 if (res
!= ERROR_OK
)
1736 static enum target_state
stlink_usb_v2_get_status(void *handle
)
1741 result
= stlink_usb_v2_read_debug_reg(handle
, DCB_DHCSR
, &status
);
1742 if (result
!= ERROR_OK
)
1743 return TARGET_UNKNOWN
;
1745 if (status
& S_HALT
)
1746 return TARGET_HALTED
;
1747 else if (status
& S_RESET_ST
)
1748 return TARGET_RESET
;
1750 return TARGET_RUNNING
;
1754 static enum target_state
stlink_usb_state(void *handle
)
1757 struct stlink_usb_handle_s
*h
= handle
;
1759 assert(handle
!= NULL
);
1761 if (h
->transport
== HL_TRANSPORT_SWIM
) {
1762 res
= stlink_usb_mode_enter(handle
, stlink_get_mode(h
->transport
));
1763 if (res
!= ERROR_OK
)
1764 return TARGET_UNKNOWN
;
1766 res
= stlink_swim_resync(handle
);
1767 if (res
!= ERROR_OK
)
1768 return TARGET_UNKNOWN
;
1773 if (h
->reconnect_pending
) {
1774 LOG_INFO("Previous state query failed, trying to reconnect");
1775 res
= stlink_usb_mode_enter(handle
, stlink_get_mode(h
->transport
));
1777 if (res
!= ERROR_OK
)
1778 return TARGET_UNKNOWN
;
1780 h
->reconnect_pending
= false;
1783 if (h
->version
.jtag_api
!= STLINK_JTAG_API_V1
) {
1784 res
= stlink_usb_v2_get_status(handle
);
1785 if (res
== TARGET_UNKNOWN
)
1786 h
->reconnect_pending
= true;
1790 stlink_usb_init_buffer(handle
, h
->rx_ep
, 2);
1792 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
1793 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_GETSTATUS
;
1795 res
= stlink_usb_xfer_noerrcheck(handle
, h
->databuf
, 2);
1797 if (res
!= ERROR_OK
)
1798 return TARGET_UNKNOWN
;
1800 if (h
->databuf
[0] == STLINK_CORE_RUNNING
)
1801 return TARGET_RUNNING
;
1802 if (h
->databuf
[0] == STLINK_CORE_HALTED
)
1803 return TARGET_HALTED
;
1805 h
->reconnect_pending
= true;
1807 return TARGET_UNKNOWN
;
1810 static int stlink_usb_assert_srst(void *handle
, int srst
)
1812 struct stlink_usb_handle_s
*h
= handle
;
1814 assert(handle
!= NULL
);
1816 if (h
->transport
== HL_TRANSPORT_SWIM
)
1817 return stlink_swim_assert_reset(handle
, srst
);
1819 if (h
->version
.stlink
== 1)
1820 return ERROR_COMMAND_NOTFOUND
;
1822 stlink_usb_init_buffer(handle
, h
->rx_ep
, 2);
1824 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
1825 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_DRIVE_NRST
;
1826 h
->cmdbuf
[h
->cmdidx
++] = srst
;
1828 return stlink_cmd_allow_retry(handle
, h
->databuf
, 2);
1832 static void stlink_usb_trace_disable(void *handle
)
1835 struct stlink_usb_handle_s
*h
= handle
;
1837 assert(handle
!= NULL
);
1839 assert(h
->version
.flags
& STLINK_F_HAS_TRACE
);
1841 LOG_DEBUG("Tracing: disable");
1843 stlink_usb_init_buffer(handle
, h
->rx_ep
, 2);
1844 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
1845 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_STOP_TRACE_RX
;
1846 res
= stlink_usb_xfer_errcheck(handle
, h
->databuf
, 2);
1848 if (res
== ERROR_OK
)
1849 h
->trace
.enabled
= false;
1854 static int stlink_usb_trace_enable(void *handle
)
1857 struct stlink_usb_handle_s
*h
= handle
;
1859 assert(handle
!= NULL
);
1861 if (h
->version
.flags
& STLINK_F_HAS_TRACE
) {
1862 stlink_usb_init_buffer(handle
, h
->rx_ep
, 10);
1864 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
1865 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_START_TRACE_RX
;
1866 h_u16_to_le(h
->cmdbuf
+h
->cmdidx
, (uint16_t)STLINK_TRACE_SIZE
);
1868 h_u32_to_le(h
->cmdbuf
+h
->cmdidx
, h
->trace
.source_hz
);
1871 res
= stlink_usb_xfer_errcheck(handle
, h
->databuf
, 2);
1873 if (res
== ERROR_OK
) {
1874 h
->trace
.enabled
= true;
1875 LOG_DEBUG("Tracing: recording at %" PRIu32
"Hz", h
->trace
.source_hz
);
1878 LOG_ERROR("Tracing is not supported by this version.");
1886 static int stlink_usb_reset(void *handle
)
1888 struct stlink_usb_handle_s
*h
= handle
;
1891 assert(handle
!= NULL
);
1893 if (h
->transport
== HL_TRANSPORT_SWIM
)
1894 return stlink_swim_generate_rst(handle
);
1896 stlink_usb_init_buffer(handle
, h
->rx_ep
, 2);
1898 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
1900 if (h
->version
.jtag_api
== STLINK_JTAG_API_V1
)
1901 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV1_RESETSYS
;
1903 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_RESETSYS
;
1905 retval
= stlink_cmd_allow_retry(handle
, h
->databuf
, 2);
1906 if (retval
!= ERROR_OK
)
1909 if (h
->trace
.enabled
) {
1910 stlink_usb_trace_disable(h
);
1911 return stlink_usb_trace_enable(h
);
1918 static int stlink_usb_run(void *handle
)
1921 struct stlink_usb_handle_s
*h
= handle
;
1923 assert(handle
!= NULL
);
1925 if (h
->version
.jtag_api
!= STLINK_JTAG_API_V1
) {
1926 res
= stlink_usb_write_debug_reg(handle
, DCB_DHCSR
, DBGKEY
|C_DEBUGEN
);
1931 stlink_usb_init_buffer(handle
, h
->rx_ep
, 2);
1933 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
1934 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_RUNCORE
;
1936 return stlink_cmd_allow_retry(handle
, h
->databuf
, 2);
1940 static int stlink_usb_halt(void *handle
)
1943 struct stlink_usb_handle_s
*h
= handle
;
1945 assert(handle
!= NULL
);
1947 if (h
->version
.jtag_api
!= STLINK_JTAG_API_V1
) {
1948 res
= stlink_usb_write_debug_reg(handle
, DCB_DHCSR
, DBGKEY
|C_HALT
|C_DEBUGEN
);
1953 stlink_usb_init_buffer(handle
, h
->rx_ep
, 2);
1955 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
1956 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_FORCEDEBUG
;
1958 return stlink_cmd_allow_retry(handle
, h
->databuf
, 2);
1962 static int stlink_usb_step(void *handle
)
1964 struct stlink_usb_handle_s
*h
= handle
;
1966 assert(handle
!= NULL
);
1968 if (h
->version
.jtag_api
!= STLINK_JTAG_API_V1
) {
1969 /* TODO: this emulates the v1 api, it should really use a similar auto mask isr
1970 * that the Cortex-M3 currently does. */
1971 stlink_usb_write_debug_reg(handle
, DCB_DHCSR
, DBGKEY
|C_HALT
|C_MASKINTS
|C_DEBUGEN
);
1972 stlink_usb_write_debug_reg(handle
, DCB_DHCSR
, DBGKEY
|C_STEP
|C_MASKINTS
|C_DEBUGEN
);
1973 return stlink_usb_write_debug_reg(handle
, DCB_DHCSR
, DBGKEY
|C_HALT
|C_DEBUGEN
);
1976 stlink_usb_init_buffer(handle
, h
->rx_ep
, 2);
1978 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
1979 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_STEPCORE
;
1981 return stlink_cmd_allow_retry(handle
, h
->databuf
, 2);
1985 static int stlink_usb_read_regs(void *handle
)
1988 struct stlink_usb_handle_s
*h
= handle
;
1990 assert(handle
!= NULL
);
1992 stlink_usb_init_buffer(handle
, h
->rx_ep
, 88);
1994 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
1995 if (h
->version
.jtag_api
== STLINK_JTAG_API_V1
) {
1997 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV1_READALLREGS
;
1998 res
= stlink_usb_xfer_noerrcheck(handle
, h
->databuf
, 84);
1999 /* regs data from offset 0 */
2001 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_READALLREGS
;
2002 res
= stlink_usb_xfer_errcheck(handle
, h
->databuf
, 88);
2003 /* status at offset 0, regs data from offset 4 */
2010 static int stlink_usb_read_reg(void *handle
, int num
, uint32_t *val
)
2013 struct stlink_usb_handle_s
*h
= handle
;
2015 assert(handle
!= NULL
);
2017 stlink_usb_init_buffer(handle
, h
->rx_ep
, h
->version
.jtag_api
== STLINK_JTAG_API_V1
? 4 : 8);
2019 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
2020 if (h
->version
.jtag_api
== STLINK_JTAG_API_V1
)
2021 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV1_READREG
;
2023 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_READREG
;
2024 h
->cmdbuf
[h
->cmdidx
++] = num
;
2026 if (h
->version
.jtag_api
== STLINK_JTAG_API_V1
) {
2027 res
= stlink_usb_xfer_noerrcheck(handle
, h
->databuf
, 4);
2028 if (res
!= ERROR_OK
)
2030 *val
= le_to_h_u32(h
->databuf
);
2033 res
= stlink_cmd_allow_retry(handle
, h
->databuf
, 8);
2034 if (res
!= ERROR_OK
)
2036 *val
= le_to_h_u32(h
->databuf
+ 4);
2042 static int stlink_usb_write_reg(void *handle
, int num
, uint32_t val
)
2044 struct stlink_usb_handle_s
*h
= handle
;
2046 assert(handle
!= NULL
);
2048 stlink_usb_init_buffer(handle
, h
->rx_ep
, 2);
2050 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
2051 if (h
->version
.jtag_api
== STLINK_JTAG_API_V1
)
2052 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV1_WRITEREG
;
2054 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_WRITEREG
;
2055 h
->cmdbuf
[h
->cmdidx
++] = num
;
2056 h_u32_to_le(h
->cmdbuf
+h
->cmdidx
, val
);
2059 return stlink_cmd_allow_retry(handle
, h
->databuf
, 2);
2062 static int stlink_usb_get_rw_status(void *handle
)
2064 struct stlink_usb_handle_s
*h
= handle
;
2066 assert(handle
!= NULL
);
2068 if (h
->version
.jtag_api
== STLINK_JTAG_API_V1
)
2071 stlink_usb_init_buffer(handle
, h
->rx_ep
, 2);
2073 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
2074 if (h
->version
.flags
& STLINK_F_HAS_GETLASTRWSTATUS2
) {
2075 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_GETLASTRWSTATUS2
;
2076 return stlink_usb_xfer_errcheck(handle
, h
->databuf
, 12);
2078 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_GETLASTRWSTATUS
;
2079 return stlink_usb_xfer_errcheck(handle
, h
->databuf
, 2);
2084 static int stlink_usb_read_mem8(void *handle
, uint32_t addr
, uint16_t len
,
2088 uint16_t read_len
= len
;
2089 struct stlink_usb_handle_s
*h
= handle
;
2091 assert(handle
!= NULL
);
2093 /* max 8 bit read/write is 64 bytes or 512 bytes for v3 */
2094 if (len
> stlink_usb_block(h
)) {
2095 LOG_DEBUG("max buffer (%d) length exceeded", stlink_usb_block(h
));
2099 stlink_usb_init_buffer(handle
, h
->rx_ep
, read_len
);
2101 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
2102 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_READMEM_8BIT
;
2103 h_u32_to_le(h
->cmdbuf
+h
->cmdidx
, addr
);
2105 h_u16_to_le(h
->cmdbuf
+h
->cmdidx
, len
);
2108 /* we need to fix read length for single bytes */
2112 res
= stlink_usb_xfer_noerrcheck(handle
, h
->databuf
, read_len
);
2114 if (res
!= ERROR_OK
)
2117 memcpy(buffer
, h
->databuf
, len
);
2119 return stlink_usb_get_rw_status(handle
);
2123 static int stlink_usb_write_mem8(void *handle
, uint32_t addr
, uint16_t len
,
2124 const uint8_t *buffer
)
2127 struct stlink_usb_handle_s
*h
= handle
;
2129 assert(handle
!= NULL
);
2131 /* max 8 bit read/write is 64 bytes or 512 bytes for v3 */
2132 if (len
> stlink_usb_block(h
)) {
2133 LOG_DEBUG("max buffer length (%d) exceeded", stlink_usb_block(h
));
2137 stlink_usb_init_buffer(handle
, h
->tx_ep
, len
);
2139 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
2140 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_WRITEMEM_8BIT
;
2141 h_u32_to_le(h
->cmdbuf
+h
->cmdidx
, addr
);
2143 h_u16_to_le(h
->cmdbuf
+h
->cmdidx
, len
);
2146 res
= stlink_usb_xfer_noerrcheck(handle
, buffer
, len
);
2148 if (res
!= ERROR_OK
)
2151 return stlink_usb_get_rw_status(handle
);
2155 static int stlink_usb_read_mem16(void *handle
, uint32_t addr
, uint16_t len
,
2159 struct stlink_usb_handle_s
*h
= handle
;
2161 assert(handle
!= NULL
);
2163 if (!(h
->version
.flags
& STLINK_F_HAS_MEM_16BIT
))
2164 return ERROR_COMMAND_NOTFOUND
;
2166 /* data must be a multiple of 2 and half-word aligned */
2167 if (len
% 2 || addr
% 2) {
2168 LOG_DEBUG("Invalid data alignment");
2169 return ERROR_TARGET_UNALIGNED_ACCESS
;
2172 stlink_usb_init_buffer(handle
, h
->rx_ep
, len
);
2174 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
2175 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_READMEM_16BIT
;
2176 h_u32_to_le(h
->cmdbuf
+h
->cmdidx
, addr
);
2178 h_u16_to_le(h
->cmdbuf
+h
->cmdidx
, len
);
2181 res
= stlink_usb_xfer_noerrcheck(handle
, h
->databuf
, len
);
2183 if (res
!= ERROR_OK
)
2186 memcpy(buffer
, h
->databuf
, len
);
2188 return stlink_usb_get_rw_status(handle
);
2192 static int stlink_usb_write_mem16(void *handle
, uint32_t addr
, uint16_t len
,
2193 const uint8_t *buffer
)
2196 struct stlink_usb_handle_s
*h
= handle
;
2198 assert(handle
!= NULL
);
2200 if (!(h
->version
.flags
& STLINK_F_HAS_MEM_16BIT
))
2201 return ERROR_COMMAND_NOTFOUND
;
2203 /* data must be a multiple of 2 and half-word aligned */
2204 if (len
% 2 || addr
% 2) {
2205 LOG_DEBUG("Invalid data alignment");
2206 return ERROR_TARGET_UNALIGNED_ACCESS
;
2209 stlink_usb_init_buffer(handle
, h
->tx_ep
, len
);
2211 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
2212 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_WRITEMEM_16BIT
;
2213 h_u32_to_le(h
->cmdbuf
+h
->cmdidx
, addr
);
2215 h_u16_to_le(h
->cmdbuf
+h
->cmdidx
, len
);
2218 res
= stlink_usb_xfer_noerrcheck(handle
, buffer
, len
);
2220 if (res
!= ERROR_OK
)
2223 return stlink_usb_get_rw_status(handle
);
2227 static int stlink_usb_read_mem32(void *handle
, uint32_t addr
, uint16_t len
,
2231 struct stlink_usb_handle_s
*h
= handle
;
2233 assert(handle
!= NULL
);
2235 /* data must be a multiple of 4 and word aligned */
2236 if (len
% 4 || addr
% 4) {
2237 LOG_DEBUG("Invalid data alignment");
2238 return ERROR_TARGET_UNALIGNED_ACCESS
;
2241 stlink_usb_init_buffer(handle
, h
->rx_ep
, len
);
2243 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
2244 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_READMEM_32BIT
;
2245 h_u32_to_le(h
->cmdbuf
+h
->cmdidx
, addr
);
2247 h_u16_to_le(h
->cmdbuf
+h
->cmdidx
, len
);
2250 res
= stlink_usb_xfer_noerrcheck(handle
, h
->databuf
, len
);
2252 if (res
!= ERROR_OK
)
2255 memcpy(buffer
, h
->databuf
, len
);
2257 return stlink_usb_get_rw_status(handle
);
2261 static int stlink_usb_write_mem32(void *handle
, uint32_t addr
, uint16_t len
,
2262 const uint8_t *buffer
)
2265 struct stlink_usb_handle_s
*h
= handle
;
2267 assert(handle
!= NULL
);
2269 /* data must be a multiple of 4 and word aligned */
2270 if (len
% 4 || addr
% 4) {
2271 LOG_DEBUG("Invalid data alignment");
2272 return ERROR_TARGET_UNALIGNED_ACCESS
;
2275 stlink_usb_init_buffer(handle
, h
->tx_ep
, len
);
2277 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
2278 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_WRITEMEM_32BIT
;
2279 h_u32_to_le(h
->cmdbuf
+h
->cmdidx
, addr
);
2281 h_u16_to_le(h
->cmdbuf
+h
->cmdidx
, len
);
2284 res
= stlink_usb_xfer_noerrcheck(handle
, buffer
, len
);
2286 if (res
!= ERROR_OK
)
2289 return stlink_usb_get_rw_status(handle
);
2292 static uint32_t stlink_max_block_size(uint32_t tar_autoincr_block
, uint32_t address
)
2294 uint32_t max_tar_block
= (tar_autoincr_block
- ((tar_autoincr_block
- 1) & address
));
2295 if (max_tar_block
== 0)
2297 return max_tar_block
;
2300 static int stlink_usb_read_mem(void *handle
, uint32_t addr
, uint32_t size
,
2301 uint32_t count
, uint8_t *buffer
)
2303 int retval
= ERROR_OK
;
2304 uint32_t bytes_remaining
;
2306 struct stlink_usb_handle_s
*h
= handle
;
2308 /* calculate byte count */
2311 /* switch to 8 bit if stlink does not support 16 bit memory read */
2312 if (size
== 2 && !(h
->version
.flags
& STLINK_F_HAS_MEM_16BIT
))
2317 bytes_remaining
= (size
!= 1) ? \
2318 stlink_max_block_size(h
->max_mem_packet
, addr
) : stlink_usb_block(h
);
2320 if (count
< bytes_remaining
)
2321 bytes_remaining
= count
;
2323 if (h
->transport
== HL_TRANSPORT_SWIM
) {
2324 retval
= stlink_swim_readbytes(handle
, addr
, bytes_remaining
, buffer
);
2325 if (retval
!= ERROR_OK
)
2329 * all stlink support 8/32bit memory read/writes and only from
2330 * stlink V2J26 there is support for 16 bit memory read/write.
2331 * Honour 32 bit and, if possible, 16 bit too. Otherwise, handle
2336 /* When in jtag mode the stlink uses the auto-increment functionality.
2337 * However it expects us to pass the data correctly, this includes
2338 * alignment and any page boundaries. We already do this as part of the
2339 * adi_v5 implementation, but the stlink is a hla adapter and so this
2340 * needs implementing manually.
2341 * currently this only affects jtag mode, according to ST they do single
2342 * access in SWD mode - but this may change and so we do it for both modes */
2344 /* we first need to check for any unaligned bytes */
2345 if (addr
& (size
- 1)) {
2347 uint32_t head_bytes
= size
- (addr
& (size
- 1));
2348 retval
= stlink_usb_read_mem8(handle
, addr
, head_bytes
, buffer
);
2349 if (retval
== ERROR_WAIT
&& retries
< MAX_WAIT_RETRIES
) {
2350 usleep((1<<retries
++) * 1000);
2353 if (retval
!= ERROR_OK
)
2355 buffer
+= head_bytes
;
2357 count
-= head_bytes
;
2358 bytes_remaining
-= head_bytes
;
2361 if (bytes_remaining
& (size
- 1))
2362 retval
= stlink_usb_read_mem(handle
, addr
, 1, bytes_remaining
, buffer
);
2364 retval
= stlink_usb_read_mem16(handle
, addr
, bytes_remaining
, buffer
);
2366 retval
= stlink_usb_read_mem32(handle
, addr
, bytes_remaining
, buffer
);
2368 retval
= stlink_usb_read_mem8(handle
, addr
, bytes_remaining
, buffer
);
2370 if (retval
== ERROR_WAIT
&& retries
< MAX_WAIT_RETRIES
) {
2371 usleep((1<<retries
++) * 1000);
2374 if (retval
!= ERROR_OK
)
2377 buffer
+= bytes_remaining
;
2378 addr
+= bytes_remaining
;
2379 count
-= bytes_remaining
;
2385 static int stlink_usb_write_mem(void *handle
, uint32_t addr
, uint32_t size
,
2386 uint32_t count
, const uint8_t *buffer
)
2388 int retval
= ERROR_OK
;
2389 uint32_t bytes_remaining
;
2391 struct stlink_usb_handle_s
*h
= handle
;
2393 /* calculate byte count */
2396 /* switch to 8 bit if stlink does not support 16 bit memory read */
2397 if (size
== 2 && !(h
->version
.flags
& STLINK_F_HAS_MEM_16BIT
))
2402 bytes_remaining
= (size
!= 1) ? \
2403 stlink_max_block_size(h
->max_mem_packet
, addr
) : stlink_usb_block(h
);
2405 if (count
< bytes_remaining
)
2406 bytes_remaining
= count
;
2408 if (h
->transport
== HL_TRANSPORT_SWIM
) {
2409 retval
= stlink_swim_writebytes(handle
, addr
, bytes_remaining
, buffer
);
2410 if (retval
!= ERROR_OK
)
2414 * all stlink support 8/32bit memory read/writes and only from
2415 * stlink V2J26 there is support for 16 bit memory read/write.
2416 * Honour 32 bit and, if possible, 16 bit too. Otherwise, handle
2421 /* When in jtag mode the stlink uses the auto-increment functionality.
2422 * However it expects us to pass the data correctly, this includes
2423 * alignment and any page boundaries. We already do this as part of the
2424 * adi_v5 implementation, but the stlink is a hla adapter and so this
2425 * needs implementing manually.
2426 * currently this only affects jtag mode, according to ST they do single
2427 * access in SWD mode - but this may change and so we do it for both modes */
2429 /* we first need to check for any unaligned bytes */
2430 if (addr
& (size
- 1)) {
2432 uint32_t head_bytes
= size
- (addr
& (size
- 1));
2433 retval
= stlink_usb_write_mem8(handle
, addr
, head_bytes
, buffer
);
2434 if (retval
== ERROR_WAIT
&& retries
< MAX_WAIT_RETRIES
) {
2435 usleep((1<<retries
++) * 1000);
2438 if (retval
!= ERROR_OK
)
2440 buffer
+= head_bytes
;
2442 count
-= head_bytes
;
2443 bytes_remaining
-= head_bytes
;
2446 if (bytes_remaining
& (size
- 1))
2447 retval
= stlink_usb_write_mem(handle
, addr
, 1, bytes_remaining
, buffer
);
2449 retval
= stlink_usb_write_mem16(handle
, addr
, bytes_remaining
, buffer
);
2451 retval
= stlink_usb_write_mem32(handle
, addr
, bytes_remaining
, buffer
);
2454 retval
= stlink_usb_write_mem8(handle
, addr
, bytes_remaining
, buffer
);
2455 if (retval
== ERROR_WAIT
&& retries
< MAX_WAIT_RETRIES
) {
2456 usleep((1<<retries
++) * 1000);
2459 if (retval
!= ERROR_OK
)
2462 buffer
+= bytes_remaining
;
2463 addr
+= bytes_remaining
;
2464 count
-= bytes_remaining
;
2471 static int stlink_usb_override_target(const char *targetname
)
2473 return !strcmp(targetname
, "cortex_m");
2476 static int stlink_speed_swim(void *handle
, int khz
, bool query
)
2479 we dont care what the khz rate is
2480 we only have low and high speed...
2481 before changing speed the SWIM_CSR HS bit
2485 stlink_swim_speed(handle
, 0);
2487 stlink_swim_speed(handle
, 1);
2491 static int stlink_match_speed_map(const struct speed_map
*map
, unsigned int map_size
, int khz
, bool query
)
2494 int speed_index
= -1;
2495 int speed_diff
= INT_MAX
;
2496 int last_valid_speed
= -1;
2499 for (i
= 0; i
< map_size
; i
++) {
2502 last_valid_speed
= i
;
2503 if (khz
== map
[i
].speed
) {
2507 int current_diff
= khz
- map
[i
].speed
;
2508 /* get abs value for comparison */
2509 current_diff
= (current_diff
> 0) ? current_diff
: -current_diff
;
2510 if ((current_diff
< speed_diff
) && khz
>= map
[i
].speed
) {
2511 speed_diff
= current_diff
;
2517 if (speed_index
== -1) {
2518 /* this will only be here if we cannot match the slow speed.
2519 * use the slowest speed we support.*/
2520 speed_index
= last_valid_speed
;
2522 } else if (i
== map_size
)
2525 if (!match
&& query
) {
2526 LOG_INFO("Unable to match requested speed %d kHz, using %d kHz", \
2527 khz
, map
[speed_index
].speed
);
2533 static int stlink_speed_swd(void *handle
, int khz
, bool query
)
2536 struct stlink_usb_handle_s
*h
= handle
;
2538 /* old firmware cannot change it */
2539 if (!(h
->version
.flags
& STLINK_F_HAS_SWD_SET_FREQ
))
2542 speed_index
= stlink_match_speed_map(stlink_khz_to_speed_map_swd
,
2543 ARRAY_SIZE(stlink_khz_to_speed_map_swd
), khz
, query
);
2546 int result
= stlink_usb_set_swdclk(h
, stlink_khz_to_speed_map_swd
[speed_index
].speed_divisor
);
2547 if (result
!= ERROR_OK
) {
2548 LOG_ERROR("Unable to set adapter speed");
2553 return stlink_khz_to_speed_map_swd
[speed_index
].speed
;
2556 static int stlink_speed_jtag(void *handle
, int khz
, bool query
)
2559 struct stlink_usb_handle_s
*h
= handle
;
2561 /* old firmware cannot change it */
2562 if (!(h
->version
.flags
& STLINK_F_HAS_JTAG_SET_FREQ
))
2565 speed_index
= stlink_match_speed_map(stlink_khz_to_speed_map_jtag
,
2566 ARRAY_SIZE(stlink_khz_to_speed_map_jtag
), khz
, query
);
2569 int result
= stlink_usb_set_jtagclk(h
, stlink_khz_to_speed_map_jtag
[speed_index
].speed_divisor
);
2570 if (result
!= ERROR_OK
) {
2571 LOG_ERROR("Unable to set adapter speed");
2576 return stlink_khz_to_speed_map_jtag
[speed_index
].speed
;
2579 void stlink_dump_speed_map(const struct speed_map
*map
, unsigned int map_size
)
2583 LOG_DEBUG("Supported clock speeds are:");
2584 for (i
= 0; i
< map_size
; i
++)
2586 LOG_DEBUG("%d kHz", map
[i
].speed
);
2589 static int stlink_get_com_freq(void *handle
, bool is_jtag
, struct speed_map
*map
)
2591 struct stlink_usb_handle_s
*h
= handle
;
2594 if (h
->version
.jtag_api
!= STLINK_JTAG_API_V3
) {
2595 LOG_ERROR("Unknown command");
2599 stlink_usb_init_buffer(handle
, h
->rx_ep
, 16);
2601 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
2602 h
->cmdbuf
[h
->cmdidx
++] = STLINK_APIV3_GET_COM_FREQ
;
2603 h
->cmdbuf
[h
->cmdidx
++] = is_jtag
? 1 : 0;
2605 int res
= stlink_usb_xfer_errcheck(handle
, h
->databuf
, 52);
2607 int size
= h
->databuf
[8];
2609 if (size
> STLINK_V3_MAX_FREQ_NB
)
2610 size
= STLINK_V3_MAX_FREQ_NB
;
2612 for (i
= 0; i
< size
; i
++) {
2613 map
[i
].speed
= le_to_h_u32(&h
->databuf
[12 + 4 * i
]);
2614 map
[i
].speed_divisor
= i
;
2617 /* set to zero all the next entries */
2618 for (i
= size
; i
< STLINK_V3_MAX_FREQ_NB
; i
++)
2624 static int stlink_set_com_freq(void *handle
, bool is_jtag
, unsigned int frequency
)
2626 struct stlink_usb_handle_s
*h
= handle
;
2628 if (h
->version
.jtag_api
!= STLINK_JTAG_API_V3
) {
2629 LOG_ERROR("Unknown command");
2633 stlink_usb_init_buffer(handle
, h
->rx_ep
, 16);
2635 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
2636 h
->cmdbuf
[h
->cmdidx
++] = STLINK_APIV3_SET_COM_FREQ
;
2637 h
->cmdbuf
[h
->cmdidx
++] = is_jtag
? 1 : 0;
2638 h
->cmdbuf
[h
->cmdidx
++] = 0;
2640 h_u32_to_le(&h
->cmdbuf
[4], frequency
);
2642 return stlink_usb_xfer_errcheck(handle
, h
->databuf
, 8);
2645 static int stlink_speed_v3(void *handle
, bool is_jtag
, int khz
, bool query
)
2647 struct stlink_usb_handle_s
*h
= handle
;
2649 struct speed_map map
[STLINK_V3_MAX_FREQ_NB
];
2651 stlink_get_com_freq(h
, is_jtag
, map
);
2653 speed_index
= stlink_match_speed_map(map
, ARRAY_SIZE(map
), khz
, query
);
2656 int result
= stlink_set_com_freq(h
, is_jtag
, map
[speed_index
].speed
);
2657 if (result
!= ERROR_OK
) {
2658 LOG_ERROR("Unable to set adapter speed");
2662 return map
[speed_index
].speed
;
2665 static int stlink_speed(void *handle
, int khz
, bool query
)
2667 struct stlink_usb_handle_s
*h
= handle
;
2672 switch (h
->transport
) {
2673 case HL_TRANSPORT_SWIM
:
2674 return stlink_speed_swim(handle
, khz
, query
);
2676 case HL_TRANSPORT_SWD
:
2677 if (h
->version
.jtag_api
== STLINK_JTAG_API_V3
)
2678 return stlink_speed_v3(handle
, false, khz
, query
);
2680 return stlink_speed_swd(handle
, khz
, query
);
2682 case HL_TRANSPORT_JTAG
:
2683 if (h
->version
.jtag_api
== STLINK_JTAG_API_V3
)
2684 return stlink_speed_v3(handle
, true, khz
, query
);
2686 return stlink_speed_jtag(handle
, khz
, query
);
2696 static int stlink_usb_close(void *handle
)
2700 enum stlink_mode emode
;
2701 struct stlink_usb_handle_s
*h
= handle
;
2704 res
= stlink_usb_current_mode(handle
, &mode
);
2707 /* do not exit if return code != ERROR_OK,
2708 it prevents us from closing jtag_libusb */
2710 if (res
== ERROR_OK
) {
2711 /* try to exit current mode */
2713 case STLINK_DEV_DFU_MODE
:
2714 emode
= STLINK_MODE_DFU
;
2716 case STLINK_DEV_DEBUG_MODE
:
2717 emode
= STLINK_MODE_DEBUG_SWD
;
2719 case STLINK_DEV_SWIM_MODE
:
2720 emode
= STLINK_MODE_DEBUG_SWIM
;
2722 case STLINK_DEV_BOOTLOADER_MODE
:
2723 case STLINK_DEV_MASS_MODE
:
2725 emode
= STLINK_MODE_UNKNOWN
;
2729 if (emode
!= STLINK_MODE_UNKNOWN
)
2730 stlink_usb_mode_leave(handle
, emode
);
2731 /* do not check return code, it prevent
2732 us from closing jtag_libusb */
2736 jtag_libusb_close(h
->fd
);
2744 static int stlink_usb_open(struct hl_interface_param_s
*param
, void **fd
)
2746 int err
, retry_count
= 1;
2747 struct stlink_usb_handle_s
*h
;
2749 LOG_DEBUG("stlink_usb_open");
2751 h
= calloc(1, sizeof(struct stlink_usb_handle_s
));
2754 LOG_DEBUG("malloc failed");
2758 h
->transport
= param
->transport
;
2760 for (unsigned i
= 0; param
->vid
[i
]; i
++) {
2761 LOG_DEBUG("transport: %d vid: 0x%04x pid: 0x%04x serial: %s",
2762 param
->transport
, param
->vid
[i
], param
->pid
[i
],
2763 param
->serial
? param
->serial
: "");
2767 On certain host USB configurations(e.g. MacBook Air)
2768 STLINKv2 dongle seems to have its FW in a funky state if,
2769 after plugging it in, you try to use openocd with it more
2770 then once (by launching and closing openocd). In cases like
2771 that initial attempt to read the FW info via
2772 stlink_usb_version will fail and the device has to be reset
2773 in order to become operational.
2776 if (jtag_libusb_open(param
->vid
, param
->pid
, param
->serial
, &h
->fd
) != ERROR_OK
) {
2777 LOG_ERROR("open failed");
2781 jtag_libusb_set_configuration(h
->fd
, 0);
2783 if (jtag_libusb_claim_interface(h
->fd
, 0) != ERROR_OK
) {
2784 LOG_DEBUG("claim interface failed");
2788 /* RX EP is common for all versions */
2789 h
->rx_ep
= STLINK_RX_EP
;
2792 if (jtag_libusb_get_pid(jtag_libusb_get_device(h
->fd
), &pid
) != ERROR_OK
) {
2793 LOG_DEBUG("libusb_get_pid failed");
2797 /* wrap version for first read */
2800 h
->version
.stlink
= 1;
2801 h
->tx_ep
= STLINK_TX_EP
;
2803 case STLINK_V3_USBLOADER_PID
:
2804 case STLINK_V3E_PID
:
2805 case STLINK_V3S_PID
:
2806 case STLINK_V3_2VCP_PID
:
2807 h
->version
.stlink
= 3;
2808 h
->tx_ep
= STLINK_V2_1_TX_EP
;
2809 h
->trace_ep
= STLINK_V2_1_TRACE_EP
;
2811 case STLINK_V2_1_PID
:
2812 case STLINK_V2_1_NO_MSD_PID
:
2813 h
->version
.stlink
= 2;
2814 h
->tx_ep
= STLINK_V2_1_TX_EP
;
2815 h
->trace_ep
= STLINK_V2_1_TRACE_EP
;
2818 /* fall through - we assume V2 to be the default version*/
2820 h
->version
.stlink
= 2;
2821 h
->tx_ep
= STLINK_TX_EP
;
2822 h
->trace_ep
= STLINK_TRACE_EP
;
2826 /* get the device version */
2827 err
= stlink_usb_version(h
);
2829 if (err
== ERROR_OK
) {
2831 } else if (h
->version
.stlink
== 1 ||
2833 LOG_ERROR("read version failed");
2836 err
= jtag_libusb_release_interface(h
->fd
, 0);
2837 if (err
!= ERROR_OK
) {
2838 LOG_ERROR("release interface failed");
2842 err
= jtag_libusb_reset_device(h
->fd
);
2843 if (err
!= ERROR_OK
) {
2844 LOG_ERROR("reset device failed");
2848 jtag_libusb_close(h
->fd
);
2850 Give the device one second to settle down and
2853 usleep(1 * 1000 * 1000);
2858 /* check if mode is supported */
2861 switch (h
->transport
) {
2862 case HL_TRANSPORT_SWD
:
2863 if (h
->version
.jtag_api
== STLINK_JTAG_API_V1
)
2866 case HL_TRANSPORT_JTAG
:
2867 if (h
->version
.jtag
== 0)
2870 case HL_TRANSPORT_SWIM
:
2871 if (h
->version
.swim
== 0)
2879 if (err
!= ERROR_OK
) {
2880 LOG_ERROR("mode (transport) not supported by device");
2884 /* initialize the debug hardware */
2885 err
= stlink_usb_init_mode(h
, param
->connect_under_reset
, param
->initial_interface_speed
);
2887 if (err
!= ERROR_OK
) {
2888 LOG_ERROR("init mode failed (unable to connect to the target)");
2892 if (h
->transport
== HL_TRANSPORT_SWIM
) {
2893 err
= stlink_swim_enter(h
);
2894 if (err
!= ERROR_OK
) {
2895 LOG_ERROR("stlink_swim_enter_failed (unable to connect to the target)");
2899 h
->max_mem_packet
= STLINK_DATA_SIZE
;
2903 /* get cpuid, so we can determine the max page size
2904 * start with a safe default */
2905 h
->max_mem_packet
= (1 << 10);
2908 err
= stlink_usb_read_mem32(h
, CPUID
, 4, buffer
);
2909 if (err
== ERROR_OK
) {
2910 uint32_t cpuid
= le_to_h_u32(buffer
);
2911 int i
= (cpuid
>> 4) & 0xf;
2912 if (i
== 4 || i
== 3) {
2913 /* Cortex-M3/M4 has 4096 bytes autoincrement range */
2914 h
->max_mem_packet
= (1 << 12);
2918 LOG_DEBUG("Using TAR autoincrement: %" PRIu32
, h
->max_mem_packet
);
2925 stlink_usb_close(h
);
2930 int stlink_config_trace(void *handle
, bool enabled
,
2931 enum tpiu_pin_protocol pin_protocol
, uint32_t port_size
,
2932 unsigned int *trace_freq
, unsigned int traceclkin_freq
,
2933 uint16_t *prescaler
)
2935 struct stlink_usb_handle_s
*h
= handle
;
2938 if (enabled
&& (!(h
->version
.flags
& STLINK_F_HAS_TRACE
) ||
2939 pin_protocol
!= TPIU_PIN_PROTOCOL_ASYNC_UART
)) {
2940 LOG_ERROR("The attached ST-LINK version doesn't support this trace mode");
2945 stlink_usb_trace_disable(h
);
2949 if (*trace_freq
> STLINK_TRACE_MAX_HZ
) {
2950 LOG_ERROR("ST-LINK doesn't support SWO frequency higher than %u",
2951 STLINK_TRACE_MAX_HZ
);
2955 stlink_usb_trace_disable(h
);
2958 *trace_freq
= STLINK_TRACE_MAX_HZ
;
2960 presc
= traceclkin_freq
/ *trace_freq
;
2962 if (traceclkin_freq
% *trace_freq
> 0)
2965 if (presc
> TPIU_ACPR_MAX_SWOSCALER
) {
2966 LOG_ERROR("SWO frequency is not suitable. Please choose a different "
2972 h
->trace
.source_hz
= *trace_freq
;
2974 return stlink_usb_trace_enable(h
);
2978 static int stlink_usb_init_access_port(void *handle
, unsigned char ap_num
)
2980 struct stlink_usb_handle_s
*h
= handle
;
2982 assert(handle
!= NULL
);
2984 if (!(h
->version
.flags
& STLINK_F_HAS_AP_INIT
))
2985 return ERROR_COMMAND_NOTFOUND
;
2987 LOG_DEBUG_IO("init ap_num = %d", ap_num
);
2988 stlink_usb_init_buffer(handle
, h
->rx_ep
, 16);
2989 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
2990 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_INIT_AP
;
2991 h
->cmdbuf
[h
->cmdidx
++] = ap_num
;
2993 return stlink_usb_xfer_errcheck(handle
, h
->databuf
, 2);
2997 static int stlink_usb_close_access_port(void *handle
, unsigned char ap_num
)
2999 struct stlink_usb_handle_s
*h
= handle
;
3001 assert(handle
!= NULL
);
3003 if (!(h
->version
.flags
& STLINK_F_HAS_AP_INIT
))
3004 return ERROR_COMMAND_NOTFOUND
;
3006 LOG_DEBUG_IO("close ap_num = %d", ap_num
);
3007 stlink_usb_init_buffer(handle
, h
->rx_ep
, 16);
3008 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
3009 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_CLOSE_AP_DBG
;
3010 h
->cmdbuf
[h
->cmdidx
++] = ap_num
;
3012 return stlink_usb_xfer_errcheck(handle
, h
->databuf
, 2);
3016 static int stlink_read_dap_register(void *handle
, unsigned short dap_port
,
3017 unsigned short addr
, uint32_t *val
)
3019 struct stlink_usb_handle_s
*h
= handle
;
3022 assert(handle
!= NULL
);
3024 if (!(h
->version
.flags
& STLINK_F_HAS_DAP_REG
))
3025 return ERROR_COMMAND_NOTFOUND
;
3027 stlink_usb_init_buffer(handle
, h
->rx_ep
, 16);
3028 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
3029 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_READ_DAP_REG
;
3030 h_u16_to_le(&h
->cmdbuf
[2], dap_port
);
3031 h_u16_to_le(&h
->cmdbuf
[4], addr
);
3033 retval
= stlink_usb_xfer_errcheck(handle
, h
->databuf
, 8);
3034 *val
= le_to_h_u32(h
->databuf
+ 4);
3035 LOG_DEBUG_IO("dap_port_read = %d, addr = 0x%x, value = 0x%x", dap_port
, addr
, *val
);
3040 static int stlink_write_dap_register(void *handle
, unsigned short dap_port
,
3041 unsigned short addr
, uint32_t val
)
3043 struct stlink_usb_handle_s
*h
= handle
;
3045 assert(handle
!= NULL
);
3047 if (!(h
->version
.flags
& STLINK_F_HAS_DAP_REG
))
3048 return ERROR_COMMAND_NOTFOUND
;
3050 LOG_DEBUG_IO("dap_write port = %d, addr = 0x%x, value = 0x%x", dap_port
, addr
, val
);
3051 stlink_usb_init_buffer(handle
, h
->rx_ep
, 16);
3052 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_COMMAND
;
3053 h
->cmdbuf
[h
->cmdidx
++] = STLINK_DEBUG_APIV2_WRITE_DAP_REG
;
3054 h_u16_to_le(&h
->cmdbuf
[2], dap_port
);
3055 h_u16_to_le(&h
->cmdbuf
[4], addr
);
3056 h_u32_to_le(&h
->cmdbuf
[6], val
);
3057 return stlink_usb_xfer_errcheck(handle
, h
->databuf
, 2);
3061 struct hl_layout_api_s stlink_usb_layout_api
= {
3063 .open
= stlink_usb_open
,
3065 .close
= stlink_usb_close
,
3067 .idcode
= stlink_usb_idcode
,
3069 .state
= stlink_usb_state
,
3071 .reset
= stlink_usb_reset
,
3073 .assert_srst
= stlink_usb_assert_srst
,
3075 .run
= stlink_usb_run
,
3077 .halt
= stlink_usb_halt
,
3079 .step
= stlink_usb_step
,
3081 .read_regs
= stlink_usb_read_regs
,
3083 .read_reg
= stlink_usb_read_reg
,
3085 .write_reg
= stlink_usb_write_reg
,
3087 .read_mem
= stlink_usb_read_mem
,
3089 .write_mem
= stlink_usb_write_mem
,
3091 .write_debug_reg
= stlink_usb_write_debug_reg
,
3093 .override_target
= stlink_usb_override_target
,
3095 .speed
= stlink_speed
,
3097 .config_trace
= stlink_config_trace
,
3099 .poll_trace
= stlink_usb_trace_read
,
3102 /*****************************************************************************
3103 * DAP direct interface
3106 static struct stlink_usb_handle_s
*stlink_dap_handle
;
3107 static struct hl_interface_param_s stlink_dap_param
;
3108 static DECLARE_BITMAP(opened_ap
, DP_APSEL_MAX
+ 1);
3109 static int stlink_dap_error
= ERROR_OK
;
3111 static int stlink_dap_op_queue_dp_read(struct adiv5_dap
*dap
, unsigned reg
,
3115 static int stlink_dap_record_error(int error
)
3117 if (stlink_dap_error
== ERROR_OK
)
3118 stlink_dap_error
= error
;
3123 static int stlink_dap_get_and_clear_error(void)
3125 int retval
= stlink_dap_error
;
3126 stlink_dap_error
= ERROR_OK
;
3131 static int stlink_dap_open_ap(unsigned short apsel
)
3135 /* nothing to do on old versions */
3136 if (!(stlink_dap_handle
->version
.flags
& STLINK_F_HAS_AP_INIT
))
3139 if (apsel
> DP_APSEL_MAX
)
3142 if (test_bit(apsel
, opened_ap
))
3145 retval
= stlink_usb_init_access_port(stlink_dap_handle
, apsel
);
3146 if (retval
!= ERROR_OK
)
3149 LOG_DEBUG("AP %d enabled", apsel
);
3150 set_bit(apsel
, opened_ap
);
3155 static int stlink_dap_closeall_ap(void)
3159 /* nothing to do on old versions */
3160 if (!(stlink_dap_handle
->version
.flags
& STLINK_F_HAS_AP_INIT
))
3163 for (apsel
= 0; apsel
<= DP_APSEL_MAX
; apsel
++) {
3164 if (!test_bit(apsel
, opened_ap
))
3166 retval
= stlink_usb_close_access_port(stlink_dap_handle
, apsel
);
3167 if (retval
!= ERROR_OK
)
3169 clear_bit(apsel
, opened_ap
);
3175 static int stlink_dap_reinit_interface(void)
3178 enum stlink_mode mode
;
3181 * On JTAG only, it should be enough to call stlink_usb_reset(). But on
3182 * some firmware version it does not work as expected, and there is no
3183 * equivalent for SWD.
3184 * At least for now, to reset the interface quit from JTAG/SWD mode then
3185 * select the mode again.
3188 mode
= stlink_get_mode(stlink_dap_param
.transport
);
3189 if (!stlink_dap_handle
->reconnect_pending
) {
3190 stlink_dap_handle
->reconnect_pending
= true;
3191 stlink_usb_mode_leave(stlink_dap_handle
, mode
);
3194 retval
= stlink_usb_mode_enter(stlink_dap_handle
, mode
);
3195 if (retval
!= ERROR_OK
)
3198 stlink_dap_handle
->reconnect_pending
= false;
3199 /* on new FW, calling mode-leave closes all the opened AP; reopen them! */
3200 if (stlink_dap_handle
->version
.flags
& STLINK_F_HAS_AP_INIT
)
3201 for (int apsel
= 0; apsel
<= DP_APSEL_MAX
; apsel
++)
3202 if (test_bit(apsel
, opened_ap
)) {
3203 clear_bit(apsel
, opened_ap
);
3204 stlink_dap_open_ap(apsel
);
3210 static int stlink_dap_op_connect(struct adiv5_dap
*dap
)
3215 LOG_INFO("stlink_dap_op_connect(%sconnect)", dap
->do_reconnect
? "re" : "");
3217 /* Check if we should reset srst already when connecting, but not if reconnecting. */
3218 if (!dap
->do_reconnect
) {
3219 enum reset_types jtag_reset_config
= jtag_get_reset_config();
3221 if (jtag_reset_config
& RESET_CNCT_UNDER_SRST
) {
3222 if (jtag_reset_config
& RESET_SRST_NO_GATING
)
3223 adapter_assert_reset();
3225 LOG_WARNING("\'srst_nogate\' reset_config option is required");
3229 dap
->do_reconnect
= false;
3230 dap_invalidate_cache(dap
);
3232 retval
= dap_dp_init(dap
);
3233 if (retval
!= ERROR_OK
) {
3234 dap
->do_reconnect
= true;
3238 retval
= stlink_usb_idcode(stlink_dap_handle
, &idcode
);
3239 if (retval
== ERROR_OK
)
3240 LOG_INFO("%s %#8.8" PRIx32
,
3241 (stlink_dap_handle
->transport
== HL_TRANSPORT_JTAG
) ? "JTAG IDCODE" : "SWD DPIDR",
3244 dap
->do_reconnect
= true;
3250 static int stlink_dap_check_reconnect(struct adiv5_dap
*dap
)
3254 if (!dap
->do_reconnect
)
3257 retval
= stlink_dap_reinit_interface();
3258 if (retval
!= ERROR_OK
)
3261 return stlink_dap_op_connect(dap
);
3265 static int stlink_dap_op_send_sequence(struct adiv5_dap
*dap
, enum swd_special_seq seq
)
3267 /* Ignore the request */
3272 static int stlink_dap_op_queue_dp_read(struct adiv5_dap
*dap
, unsigned reg
,
3278 if (!(stlink_dap_handle
->version
.flags
& STLINK_F_HAS_DPBANKSEL
))
3279 if (reg
& 0x000000F0) {
3280 LOG_ERROR("Banked DP registers not supported in current STLink FW");
3281 return ERROR_COMMAND_NOTFOUND
;
3284 retval
= stlink_dap_check_reconnect(dap
);
3285 if (retval
!= ERROR_OK
)
3288 data
= data
? : &dummy
;
3289 if (stlink_dap_handle
->version
.flags
& STLINK_F_QUIRK_JTAG_DP_READ
3290 && stlink_dap_handle
->transport
== HL_TRANSPORT_JTAG
) {
3291 /* Quirk required in JTAG. Read RDBUFF to get the data */
3292 retval
= stlink_read_dap_register(stlink_dap_handle
,
3293 STLINK_DEBUG_PORT_ACCESS
, reg
, &dummy
);
3294 if (retval
== ERROR_OK
)
3295 retval
= stlink_read_dap_register(stlink_dap_handle
,
3296 STLINK_DEBUG_PORT_ACCESS
, DP_RDBUFF
, data
);
3298 retval
= stlink_read_dap_register(stlink_dap_handle
,
3299 STLINK_DEBUG_PORT_ACCESS
, reg
, data
);
3302 return stlink_dap_record_error(retval
);
3306 static int stlink_dap_op_queue_dp_write(struct adiv5_dap
*dap
, unsigned reg
,
3311 if (!(stlink_dap_handle
->version
.flags
& STLINK_F_HAS_DPBANKSEL
))
3312 if (reg
& 0x000000F0) {
3313 LOG_ERROR("Banked DP registers not supported in current STLink FW");
3314 return ERROR_COMMAND_NOTFOUND
;
3317 if (reg
== DP_SELECT
&& (data
& DP_SELECT_DPBANK
) != 0) {
3318 /* ignored if STLINK_F_HAS_DPBANKSEL, not properly managed otherwise */
3319 LOG_DEBUG("Ignoring DPBANKSEL while write SELECT");
3320 data
&= ~DP_SELECT_DPBANK
;
3323 retval
= stlink_dap_check_reconnect(dap
);
3324 if (retval
!= ERROR_OK
)
3327 /* ST-Link does not like that we set CORUNDETECT */
3328 if (reg
== DP_CTRL_STAT
)
3329 data
&= ~CORUNDETECT
;
3331 retval
= stlink_write_dap_register(stlink_dap_handle
,
3332 STLINK_DEBUG_PORT_ACCESS
, reg
, data
);
3333 return stlink_dap_record_error(retval
);
3337 static int stlink_dap_op_queue_ap_read(struct adiv5_ap
*ap
, unsigned reg
,
3340 struct adiv5_dap
*dap
= ap
->dap
;
3344 retval
= stlink_dap_check_reconnect(dap
);
3345 if (retval
!= ERROR_OK
)
3348 if (reg
!= AP_REG_IDR
) {
3349 retval
= stlink_dap_open_ap(ap
->ap_num
);
3350 if (retval
!= ERROR_OK
)
3353 data
= data
? : &dummy
;
3354 retval
= stlink_read_dap_register(stlink_dap_handle
, ap
->ap_num
, reg
,
3356 dap
->stlink_flush_ap_write
= false;
3357 return stlink_dap_record_error(retval
);
3361 static int stlink_dap_op_queue_ap_write(struct adiv5_ap
*ap
, unsigned reg
,
3364 struct adiv5_dap
*dap
= ap
->dap
;
3367 retval
= stlink_dap_check_reconnect(dap
);
3368 if (retval
!= ERROR_OK
)
3371 retval
= stlink_dap_open_ap(ap
->ap_num
);
3372 if (retval
!= ERROR_OK
)
3375 retval
= stlink_write_dap_register(stlink_dap_handle
, ap
->ap_num
, reg
,
3377 dap
->stlink_flush_ap_write
= true;
3378 return stlink_dap_record_error(retval
);
3382 static int stlink_dap_op_queue_ap_abort(struct adiv5_dap
*dap
, uint8_t *ack
)
3384 LOG_WARNING("stlink_dap_op_queue_ap_abort()");
3389 static int stlink_dap_op_run(struct adiv5_dap
*dap
)
3391 uint32_t ctrlstat
, pwrmask
;
3392 int retval
, saved_retval
;
3394 /* Here no LOG_DEBUG. This is called continuously! */
3397 * ST-Link returns immediately after a DAP write, without waiting for it
3399 * Run a dummy read to DP_RDBUFF, as suggested in
3400 * http://infocenter.arm.com/help/topic/com.arm.doc.faqs/ka16363.html
3402 if (dap
->stlink_flush_ap_write
) {
3403 dap
->stlink_flush_ap_write
= false;
3404 retval
= stlink_dap_op_queue_dp_read(dap
, DP_RDBUFF
, NULL
);
3405 if (retval
!= ERROR_OK
) {
3406 dap
->do_reconnect
= true;
3411 saved_retval
= stlink_dap_get_and_clear_error();
3413 retval
= stlink_dap_op_queue_dp_read(dap
, DP_CTRL_STAT
, &ctrlstat
);
3414 if (retval
!= ERROR_OK
) {
3415 dap
->do_reconnect
= true;
3418 retval
= stlink_dap_get_and_clear_error();
3419 if (retval
!= ERROR_OK
) {
3420 LOG_ERROR("Fail reading CTRL/STAT register. Force reconnect");
3421 dap
->do_reconnect
= true;
3425 if (ctrlstat
& SSTICKYERR
) {
3426 if (stlink_dap_param
.transport
== HL_TRANSPORT_JTAG
)
3427 retval
= stlink_dap_op_queue_dp_write(dap
, DP_CTRL_STAT
,
3428 ctrlstat
& (dap
->dp_ctrl_stat
| SSTICKYERR
));
3430 retval
= stlink_dap_op_queue_dp_write(dap
, DP_ABORT
, STKERRCLR
);
3431 if (retval
!= ERROR_OK
) {
3432 dap
->do_reconnect
= true;
3435 retval
= stlink_dap_get_and_clear_error();
3436 if (retval
!= ERROR_OK
) {
3437 dap
->do_reconnect
= true;
3442 /* check for power lost */
3443 pwrmask
= dap
->dp_ctrl_stat
& (CDBGPWRUPREQ
| CSYSPWRUPREQ
);
3444 if ((ctrlstat
& pwrmask
) != pwrmask
)
3445 dap
->do_reconnect
= true;
3447 return saved_retval
;
3451 static void stlink_dap_op_quit(struct adiv5_dap
*dap
)
3455 retval
= stlink_dap_closeall_ap();
3456 if (retval
!= ERROR_OK
)
3457 LOG_ERROR("Error closing APs");
3461 COMMAND_HANDLER(stlink_dap_serial_command
)
3463 LOG_DEBUG("stlink_dap_serial_command");
3465 if (CMD_ARGC
!= 1) {
3466 LOG_ERROR("Expected exactly one argument for \"st-link serial <serial-number>\".");
3467 return ERROR_COMMAND_SYNTAX_ERROR
;
3470 if (stlink_dap_param
.serial
) {
3471 LOG_WARNING("Command \"st-link serial\" already used. Replacing previous value");
3472 free((void *)stlink_dap_param
.serial
);
3475 stlink_dap_param
.serial
= strdup(CMD_ARGV
[0]);
3480 COMMAND_HANDLER(stlink_dap_vid_pid
)
3482 unsigned int i
, max_usb_ids
= HLA_MAX_USB_IDS
;
3484 if (CMD_ARGC
> max_usb_ids
* 2) {
3485 LOG_WARNING("ignoring extra IDs in vid_pid "
3486 "(maximum is %d pairs)", max_usb_ids
);
3487 CMD_ARGC
= max_usb_ids
* 2;
3489 if (CMD_ARGC
< 2 || (CMD_ARGC
& 1)) {
3490 LOG_WARNING("incomplete vid_pid configuration directive");
3491 return ERROR_COMMAND_SYNTAX_ERROR
;
3493 for (i
= 0; i
< CMD_ARGC
; i
+= 2) {
3494 COMMAND_PARSE_NUMBER(u16
, CMD_ARGV
[i
], stlink_dap_param
.vid
[i
/ 2]);
3495 COMMAND_PARSE_NUMBER(u16
, CMD_ARGV
[i
+ 1], stlink_dap_param
.pid
[i
/ 2]);
3498 /* null termination */
3499 stlink_dap_param
.vid
[i
/ 2] = stlink_dap_param
.pid
[i
/ 2] = 0;
3505 static const struct command_registration stlink_dap_subcommand_handlers
[] = {
3508 .handler
= stlink_dap_serial_command
,
3509 .mode
= COMMAND_CONFIG
,
3510 .help
= "set the serial number of the adapter",
3511 .usage
= "<serial_number>",
3515 .handler
= stlink_dap_vid_pid
,
3516 .mode
= COMMAND_CONFIG
,
3517 .help
= "USB VID and PID of the adapter",
3518 .usage
= "(vid pid)+",
3520 COMMAND_REGISTRATION_DONE
3524 static const struct command_registration stlink_dap_command_handlers
[] = {
3527 .mode
= COMMAND_ANY
,
3528 .help
= "perform st-link management",
3529 .chain
= stlink_dap_subcommand_handlers
,
3532 COMMAND_REGISTRATION_DONE
3536 static int stlink_dap_init(void)
3538 enum reset_types jtag_reset_config
= jtag_get_reset_config();
3541 LOG_DEBUG("stlink_dap_init()");
3543 if (jtag_reset_config
& RESET_CNCT_UNDER_SRST
) {
3544 if (jtag_reset_config
& RESET_SRST_NO_GATING
)
3545 stlink_dap_param
.connect_under_reset
= true;
3547 LOG_WARNING("\'srst_nogate\' reset_config option is required");
3550 if (transport_is_dapdirect_swd())
3551 stlink_dap_param
.transport
= HL_TRANSPORT_SWD
;
3552 else if (transport_is_dapdirect_jtag())
3553 stlink_dap_param
.transport
= HL_TRANSPORT_JTAG
;
3555 LOG_ERROR("Unsupported transport");
3559 retval
= stlink_usb_open(&stlink_dap_param
, (void **)&stlink_dap_handle
);
3560 if (retval
!= ERROR_OK
)
3563 if (!(stlink_dap_handle
->version
.flags
& STLINK_F_HAS_DAP_REG
)) {
3564 LOG_ERROR("ST-Link version does not support DAP direct transport");
3571 static int stlink_dap_quit(void)
3573 LOG_DEBUG("stlink_dap_quit()");
3575 free((void *)stlink_dap_param
.serial
);
3576 stlink_dap_param
.serial
= NULL
;
3578 return stlink_usb_close(stlink_dap_handle
);
3582 static int stlink_dap_reset(int req_trst
, int req_srst
)
3584 LOG_DEBUG("stlink_dap_reset(%d)", req_srst
);
3585 return stlink_usb_assert_srst(stlink_dap_handle
,
3586 req_srst
? STLINK_DEBUG_APIV2_DRIVE_NRST_LOW
3587 : STLINK_DEBUG_APIV2_DRIVE_NRST_HIGH
);
3591 static int stlink_dap_speed(int speed
)
3594 LOG_ERROR("RTCK not supported. Set nonzero adapter_khz.");
3595 return ERROR_JTAG_NOT_IMPLEMENTED
;
3598 stlink_dap_param
.initial_interface_speed
= speed
;
3599 stlink_speed(stlink_dap_handle
, speed
, false);
3604 static int stlink_dap_khz(int khz
, int *jtag_speed
)
3611 static int stlink_dap_speed_div(int speed
, int *khz
)
3617 static const struct dap_ops stlink_dap_ops
= {
3618 .connect
= stlink_dap_op_connect
,
3619 .send_sequence
= stlink_dap_op_send_sequence
,
3620 .queue_dp_read
= stlink_dap_op_queue_dp_read
,
3621 .queue_dp_write
= stlink_dap_op_queue_dp_write
,
3622 .queue_ap_read
= stlink_dap_op_queue_ap_read
,
3623 .queue_ap_write
= stlink_dap_op_queue_ap_write
,
3624 .queue_ap_abort
= stlink_dap_op_queue_ap_abort
,
3625 .run
= stlink_dap_op_run
,
3626 .sync
= NULL
, /* optional */
3627 .quit
= stlink_dap_op_quit
, /* optional */
3630 static const char *const stlink_dap_transport
[] = { "dapdirect_jtag", "dapdirect_swd", NULL
};
3632 struct adapter_driver stlink_dap_adapter_driver
= {
3634 .transports
= stlink_dap_transport
,
3635 .commands
= stlink_dap_command_handlers
,
3637 .init
= stlink_dap_init
,
3638 .quit
= stlink_dap_quit
,
3639 .reset
= stlink_dap_reset
,
3640 .speed
= stlink_dap_speed
,
3641 .khz
= stlink_dap_khz
,
3642 .speed_div
= stlink_dap_speed_div
,
3644 .dap_jtag_ops
= &stlink_dap_ops
,
3645 .dap_swd_ops
= &stlink_dap_ops
,