1 /***************************************************************************
2 * Copyright (C) 2007 by Juergen Stuber <juergen@jstuber.net> *
3 * based on Dominic Rath's and Benedikt Sauter's usbprog.c *
5 * Copyright (C) 2008 by Spencer Oliver *
6 * spen@spen-soft.co.uk *
8 * Copyright (C) 2011 by Jean-Christophe PLAGNIOL-VIILARD *
9 * plagnioj@jcrosoft.com *
11 * Copyright (C) 2015 by Marc Schink *
12 * openocd-dev@marcschink.de *
14 * Copyright (C) 2015 by Paul Fertser *
15 * fercerpav@gmail.com *
17 * This program is free software; you can redistribute it and/or modify *
18 * it under the terms of the GNU General Public License as published by *
19 * the Free Software Foundation; either version 2 of the License, or *
20 * (at your option) any later version. *
22 * This program is distributed in the hope that it will be useful, *
23 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
25 * GNU General Public License for more details. *
27 * You should have received a copy of the GNU General Public License *
28 * along with this program. If not, see <http://www.gnu.org/licenses/>. *
29 ***************************************************************************/
38 #include <jtag/interface.h>
40 #include <jtag/commands.h>
41 #include <jtag/drivers/jtag_usb_common.h>
42 #include <src/helper/replacements.h>
43 #include <target/cortex_m.h>
45 #include <libjaylink/libjaylink.h>
47 static struct jaylink_context
*jayctx
;
48 static struct jaylink_device_handle
*devh
;
49 static struct jaylink_connection conn
;
50 static struct jaylink_connection connlist
[JAYLINK_MAX_CONNECTIONS
];
51 static enum jaylink_jtag_version jtag_command_version
;
52 static uint8_t caps
[JAYLINK_DEV_EXT_CAPS_SIZE
];
54 static uint32_t serial_number
;
55 static bool use_serial_number
;
56 static bool use_usb_location
;
57 static enum jaylink_usb_address usb_address
;
58 static bool use_usb_address
;
59 static enum jaylink_target_interface iface
= JAYLINK_TIF_JTAG
;
60 static bool trace_enabled
;
62 #define JLINK_MAX_SPEED 12000
63 #define JLINK_TAP_BUFFER_SIZE 2048
65 static unsigned int swd_buffer_size
= JLINK_TAP_BUFFER_SIZE
;
67 /* Maximum SWO frequency deviation. */
68 #define SWO_MAX_FREQ_DEV 0.03
70 /* 256 byte non-volatile memory */
71 struct device_config
{
73 /* 0ffset 0x01 to 0x03 */
74 uint8_t reserved_1
[3];
75 uint32_t target_power
;
76 /* 0ffset 0x08 to 0x1f */
77 uint8_t reserved_2
[24];
78 /* IP only for J-Link Pro */
79 uint8_t ip_address
[4];
80 uint8_t subnet_mask
[4];
81 /* 0ffset 0x28 to 0x2f */
82 uint8_t reserved_3
[8];
83 uint8_t mac_address
[6];
84 /* 0ffset 0x36 to 0xff */
85 uint8_t reserved_4
[202];
86 } __attribute__ ((packed
));
88 static struct device_config config
;
89 static struct device_config tmp_config
;
91 /* Queue command functions */
92 static void jlink_end_state(tap_state_t state
);
93 static void jlink_state_move(void);
94 static void jlink_path_move(int num_states
, tap_state_t
*path
);
95 static void jlink_stableclocks(int num_cycles
);
96 static void jlink_runtest(int num_cycles
);
97 static void jlink_reset(int trst
, int srst
);
98 static int jlink_reset_safe(int trst
, int srst
);
99 static int jlink_swd_run_queue(void);
100 static void jlink_swd_queue_cmd(uint8_t cmd
, uint32_t *dst
, uint32_t data
, uint32_t ap_delay_clk
);
101 static int jlink_swd_switch_seq(enum swd_special_seq seq
);
103 /* J-Link tap buffer functions */
104 static void jlink_tap_init(void);
105 static int jlink_flush(void);
107 * Queue data to go out and in, flushing the queue as many times as
110 * @param out A pointer to TDI data, if NULL, old stale data will be used.
111 * @param out_offset A bit offset for TDI data.
112 * @param tms_out A pointer to TMS data, if NULL, zeroes will be emitted.
113 * @param tms_offset A bit offset for TMS data.
114 * @param in A pointer to store TDO data to, if NULL the data will be discarded.
115 * @param in_offset A bit offset for TDO data.
116 * @param length Amount of bits to transfer out and in.
118 * @retval This function doesn't return any value.
120 static void jlink_clock_data(const uint8_t *out
, unsigned out_offset
,
121 const uint8_t *tms_out
, unsigned tms_offset
,
122 uint8_t *in
, unsigned in_offset
,
125 static enum tap_state jlink_last_state
= TAP_RESET
;
126 static int queued_retval
;
128 /***************************************************************************/
129 /* External interface implementation */
131 static void jlink_execute_stableclocks(struct jtag_command
*cmd
)
133 LOG_DEBUG_IO("stableclocks %i cycles", cmd
->cmd
.runtest
->num_cycles
);
134 jlink_stableclocks(cmd
->cmd
.runtest
->num_cycles
);
137 static void jlink_execute_runtest(struct jtag_command
*cmd
)
139 LOG_DEBUG_IO("runtest %i cycles, end in %i", cmd
->cmd
.runtest
->num_cycles
,
140 cmd
->cmd
.runtest
->end_state
);
142 jlink_end_state(cmd
->cmd
.runtest
->end_state
);
143 jlink_runtest(cmd
->cmd
.runtest
->num_cycles
);
146 static void jlink_execute_statemove(struct jtag_command
*cmd
)
148 LOG_DEBUG_IO("statemove end in %i", cmd
->cmd
.statemove
->end_state
);
150 jlink_end_state(cmd
->cmd
.statemove
->end_state
);
154 static void jlink_execute_pathmove(struct jtag_command
*cmd
)
156 LOG_DEBUG_IO("pathmove: %i states, end in %i",
157 cmd
->cmd
.pathmove
->num_states
,
158 cmd
->cmd
.pathmove
->path
[cmd
->cmd
.pathmove
->num_states
- 1]);
160 jlink_path_move(cmd
->cmd
.pathmove
->num_states
, cmd
->cmd
.pathmove
->path
);
163 static void jlink_execute_scan(struct jtag_command
*cmd
)
165 LOG_DEBUG_IO("%s type:%d", cmd
->cmd
.scan
->ir_scan
? "IRSCAN" : "DRSCAN",
166 jtag_scan_type(cmd
->cmd
.scan
));
168 /* Make sure there are no trailing fields with num_bits == 0, or the logic below will fail. */
169 while (cmd
->cmd
.scan
->num_fields
> 0
170 && cmd
->cmd
.scan
->fields
[cmd
->cmd
.scan
->num_fields
- 1].num_bits
== 0) {
171 cmd
->cmd
.scan
->num_fields
--;
172 LOG_DEBUG("discarding trailing empty field");
175 if (cmd
->cmd
.scan
->num_fields
== 0) {
176 LOG_DEBUG("empty scan, doing nothing");
180 if (cmd
->cmd
.scan
->ir_scan
) {
181 if (tap_get_state() != TAP_IRSHIFT
) {
182 jlink_end_state(TAP_IRSHIFT
);
186 if (tap_get_state() != TAP_DRSHIFT
) {
187 jlink_end_state(TAP_DRSHIFT
);
192 jlink_end_state(cmd
->cmd
.scan
->end_state
);
194 struct scan_field
*field
= cmd
->cmd
.scan
->fields
;
195 unsigned scan_size
= 0;
197 for (int i
= 0; i
< cmd
->cmd
.scan
->num_fields
; i
++, field
++) {
198 scan_size
+= field
->num_bits
;
199 LOG_DEBUG_IO("%s%s field %d/%d %d bits",
200 field
->in_value
? "in" : "",
201 field
->out_value
? "out" : "",
203 cmd
->cmd
.scan
->num_fields
,
206 if (i
== cmd
->cmd
.scan
->num_fields
- 1 && tap_get_state() != tap_get_end_state()) {
207 /* Last field, and we're leaving IRSHIFT/DRSHIFT. Clock last bit during tap
208 * movement. This last field can't have length zero, it was checked above. */
209 jlink_clock_data(field
->out_value
,
215 field
->num_bits
- 1);
216 uint8_t last_bit
= 0;
217 if (field
->out_value
)
218 bit_copy(&last_bit
, 0, field
->out_value
, field
->num_bits
- 1, 1);
219 uint8_t tms_bits
= 0x01;
220 jlink_clock_data(&last_bit
,
227 tap_set_state(tap_state_transition(tap_get_state(), 1));
228 jlink_clock_data(NULL
,
235 tap_set_state(tap_state_transition(tap_get_state(), 0));
237 jlink_clock_data(field
->out_value
,
246 if (tap_get_state() != tap_get_end_state()) {
247 jlink_end_state(tap_get_end_state());
251 LOG_DEBUG_IO("%s scan, %i bits, end in %s",
252 (cmd
->cmd
.scan
->ir_scan
) ? "IR" : "DR", scan_size
,
253 tap_state_name(tap_get_end_state()));
256 static void jlink_execute_sleep(struct jtag_command
*cmd
)
258 LOG_DEBUG_IO("sleep %" PRIu32
"", cmd
->cmd
.sleep
->us
);
260 jtag_sleep(cmd
->cmd
.sleep
->us
);
263 static int jlink_execute_command(struct jtag_command
*cmd
)
266 case JTAG_STABLECLOCKS
:
267 jlink_execute_stableclocks(cmd
);
270 jlink_execute_runtest(cmd
);
273 jlink_execute_statemove(cmd
);
276 jlink_execute_pathmove(cmd
);
279 jlink_execute_scan(cmd
);
282 jlink_execute_sleep(cmd
);
285 LOG_ERROR("BUG: Unknown JTAG command type encountered.");
286 return ERROR_JTAG_QUEUE_FAILED
;
292 static int jlink_execute_queue(void)
295 struct jtag_command
*cmd
= jtag_command_queue
;
297 while (cmd
!= NULL
) {
298 ret
= jlink_execute_command(cmd
);
306 return jlink_flush();
309 static int jlink_speed(int speed
)
312 struct jaylink_speed tmp
;
315 if (jaylink_has_cap(caps
, JAYLINK_DEV_CAP_GET_SPEEDS
)) {
316 ret
= jaylink_get_speeds(devh
, &tmp
);
318 if (ret
!= JAYLINK_OK
) {
319 LOG_ERROR("jaylink_get_speeds() failed: %s.",
320 jaylink_strerror(ret
));
321 return ERROR_JTAG_DEVICE_ERROR
;
325 max_speed
= tmp
.freq
/ tmp
.div
;
327 max_speed
= JLINK_MAX_SPEED
;
331 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_ADAPTIVE_CLOCKING
)) {
332 LOG_ERROR("Adaptive clocking is not supported by the device.");
333 return ERROR_JTAG_NOT_IMPLEMENTED
;
336 speed
= JAYLINK_SPEED_ADAPTIVE_CLOCKING
;
337 } else if (speed
> max_speed
) {
338 LOG_INFO("Reduced speed from %d kHz to %d kHz (maximum).", speed
,
343 ret
= jaylink_set_speed(devh
, speed
);
345 if (ret
!= JAYLINK_OK
) {
346 LOG_ERROR("jaylink_set_speed() failed: %s.",
347 jaylink_strerror(ret
));
348 return ERROR_JTAG_DEVICE_ERROR
;
354 static int jlink_speed_div(int speed
, int *khz
)
361 static int jlink_khz(int khz
, int *jtag_speed
)
368 static bool read_device_config(struct device_config
*cfg
)
372 ret
= jaylink_read_raw_config(devh
, (uint8_t *)cfg
);
374 if (ret
!= JAYLINK_OK
) {
375 LOG_ERROR("jaylink_read_raw_config() failed: %s.",
376 jaylink_strerror(ret
));
380 if (cfg
->usb_address
== 0xff)
381 cfg
->usb_address
= 0x00;
383 if (cfg
->target_power
== 0xffffffff)
384 cfg
->target_power
= 0;
389 static int select_interface(void)
394 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_SELECT_TIF
)) {
395 if (iface
!= JAYLINK_TIF_JTAG
) {
396 LOG_ERROR("Device supports JTAG transport only.");
397 return ERROR_JTAG_INIT_FAILED
;
403 ret
= jaylink_get_available_interfaces(devh
, &interfaces
);
405 if (ret
!= JAYLINK_OK
) {
406 LOG_ERROR("jaylink_get_available_interfaces() failed: %s.",
407 jaylink_strerror(ret
));
408 return ERROR_JTAG_INIT_FAILED
;
411 if (!(interfaces
& (1 << iface
))) {
412 LOG_ERROR("Selected transport is not supported by the device.");
413 return ERROR_JTAG_INIT_FAILED
;
416 ret
= jaylink_select_interface(devh
, iface
, NULL
);
419 LOG_ERROR("jaylink_select_interface() failed: %s.",
420 jaylink_strerror(ret
));
421 return ERROR_JTAG_INIT_FAILED
;
427 static int jlink_register(void)
434 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_REGISTER
))
437 ret
= jaylink_register(devh
, &conn
, connlist
, &count
);
439 if (ret
!= JAYLINK_OK
) {
440 LOG_ERROR("jaylink_register() failed: %s.", jaylink_strerror(ret
));
444 handle_found
= false;
446 for (i
= 0; i
< count
; i
++) {
447 if (connlist
[i
].handle
== conn
.handle
) {
454 LOG_ERROR("Registration failed: maximum number of connections on the "
463 * Adjust the SWD transaction buffer size depending on the free device internal
464 * memory. This ensures that the SWD transactions sent to the device do not
465 * exceed the internal memory of the device.
467 static bool adjust_swd_buffer_size(void)
472 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_GET_FREE_MEMORY
))
475 ret
= jaylink_get_free_memory(devh
, &tmp
);
477 if (ret
!= JAYLINK_OK
) {
478 LOG_ERROR("jaylink_get_free_memory() failed: %s.",
479 jaylink_strerror(ret
));
484 LOG_ERROR("Not enough free device internal memory: %" PRIu32
" bytes.", tmp
);
488 tmp
= MIN(JLINK_TAP_BUFFER_SIZE
, (tmp
- 16) / 2);
490 if (tmp
!= swd_buffer_size
) {
491 swd_buffer_size
= tmp
;
492 LOG_DEBUG("Adjusted SWD transaction buffer size to %u bytes.",
499 static int jaylink_log_handler(const struct jaylink_context
*ctx
,
500 enum jaylink_log_level level
, const char *format
, va_list args
,
506 case JAYLINK_LOG_LEVEL_ERROR
:
509 case JAYLINK_LOG_LEVEL_WARNING
:
510 tmp
= LOG_LVL_WARNING
;
513 * Forward info messages to the debug output because they are more verbose
514 * than info messages of OpenOCD.
516 case JAYLINK_LOG_LEVEL_INFO
:
517 case JAYLINK_LOG_LEVEL_DEBUG
:
520 case JAYLINK_LOG_LEVEL_DEBUG_IO
:
521 tmp
= LOG_LVL_DEBUG_IO
;
524 tmp
= LOG_LVL_WARNING
;
527 log_vprintf_lf(tmp
, __FILE__
, __LINE__
, __func__
, format
, args
);
532 static bool jlink_usb_location_equal(struct jaylink_device
*dev
)
540 retval
= jaylink_device_get_usb_bus_ports(dev
, &bus
, &ports
, &num_ports
);
542 if (retval
== JAYLINK_ERR_NOT_SUPPORTED
) {
544 } else if (retval
!= JAYLINK_OK
) {
545 LOG_WARNING("jaylink_device_get_usb_bus_ports() failed: %s.",
546 jaylink_strerror(retval
));
550 equal
= jtag_usb_location_equal(bus
, ports
, num_ports
);
557 static int jlink_open_device(uint32_t ifaces
, bool *found_device
)
559 int ret
= jaylink_discovery_scan(jayctx
, ifaces
);
560 if (ret
!= JAYLINK_OK
) {
561 LOG_ERROR("jaylink_discovery_scan() failed: %s.", jaylink_strerror(ret
));
562 jaylink_exit(jayctx
);
563 return ERROR_JTAG_INIT_FAILED
;
567 struct jaylink_device
**devs
;
568 ret
= jaylink_get_devices(jayctx
, &devs
, &num_devices
);
570 if (ret
!= JAYLINK_OK
) {
571 LOG_ERROR("jaylink_get_devices() failed: %s.", jaylink_strerror(ret
));
572 jaylink_exit(jayctx
);
573 return ERROR_JTAG_INIT_FAILED
;
576 use_usb_location
= (jtag_usb_get_location() != NULL
);
578 if (!use_serial_number
&& !use_usb_address
&& !use_usb_location
&& num_devices
> 1) {
579 LOG_ERROR("Multiple devices found, specify the desired device.");
580 jaylink_free_devices(devs
, true);
581 jaylink_exit(jayctx
);
582 return ERROR_JTAG_INIT_FAILED
;
585 *found_device
= false;
587 for (size_t i
= 0; devs
[i
]; i
++) {
588 struct jaylink_device
*dev
= devs
[i
];
590 if (use_serial_number
) {
592 ret
= jaylink_device_get_serial_number(dev
, &tmp
);
594 if (ret
== JAYLINK_ERR_NOT_AVAILABLE
) {
596 } else if (ret
!= JAYLINK_OK
) {
597 LOG_WARNING("jaylink_device_get_serial_number() failed: %s.",
598 jaylink_strerror(ret
));
602 if (serial_number
!= tmp
)
606 if (use_usb_address
) {
607 enum jaylink_usb_address address
;
608 ret
= jaylink_device_get_usb_address(dev
, &address
);
610 if (ret
== JAYLINK_ERR_NOT_SUPPORTED
) {
612 } else if (ret
!= JAYLINK_OK
) {
613 LOG_WARNING("jaylink_device_get_usb_address() failed: %s.",
614 jaylink_strerror(ret
));
618 if (usb_address
!= address
)
622 if (use_usb_location
&& !jlink_usb_location_equal(dev
))
625 ret
= jaylink_open(dev
, &devh
);
627 if (ret
== JAYLINK_OK
) {
628 *found_device
= true;
632 LOG_ERROR("Failed to open device: %s.", jaylink_strerror(ret
));
635 jaylink_free_devices(devs
, true);
640 static int jlink_init(void)
643 char *firmware_version
;
644 struct jaylink_hardware_version hwver
;
645 struct jaylink_hardware_status hwstatus
;
648 LOG_DEBUG("Using libjaylink %s (compiled with %s).",
649 jaylink_version_package_get_string(), JAYLINK_VERSION_PACKAGE_STRING
);
651 if (!jaylink_library_has_cap(JAYLINK_CAP_HIF_USB
) && use_usb_address
) {
652 LOG_ERROR("J-Link driver does not support USB devices.");
653 return ERROR_JTAG_INIT_FAILED
;
656 ret
= jaylink_init(&jayctx
);
658 if (ret
!= JAYLINK_OK
) {
659 LOG_ERROR("jaylink_init() failed: %s.", jaylink_strerror(ret
));
660 return ERROR_JTAG_INIT_FAILED
;
663 ret
= jaylink_log_set_callback(jayctx
, &jaylink_log_handler
, NULL
);
665 if (ret
!= JAYLINK_OK
) {
666 LOG_ERROR("jaylink_log_set_callback() failed: %s.",
667 jaylink_strerror(ret
));
668 jaylink_exit(jayctx
);
669 return ERROR_JTAG_INIT_FAILED
;
673 ret
= jlink_open_device(JAYLINK_HIF_USB
, &found_device
);
677 if (!found_device
&& use_serial_number
) {
678 ret
= jlink_open_device(JAYLINK_HIF_TCP
, &found_device
);
684 LOG_ERROR("No J-Link device found.");
685 jaylink_exit(jayctx
);
686 return ERROR_JTAG_INIT_FAILED
;
690 * Be careful with changing the following initialization sequence because
691 * some devices are known to be sensitive regarding the order.
694 ret
= jaylink_get_firmware_version(devh
, &firmware_version
, &length
);
696 if (ret
!= JAYLINK_OK
) {
697 LOG_ERROR("jaylink_get_firmware_version() failed: %s.",
698 jaylink_strerror(ret
));
700 jaylink_exit(jayctx
);
701 return ERROR_JTAG_INIT_FAILED
;
702 } else if (length
> 0) {
703 LOG_INFO("%s", firmware_version
);
704 free(firmware_version
);
706 LOG_WARNING("Device responds empty firmware version string.");
709 memset(caps
, 0, JAYLINK_DEV_EXT_CAPS_SIZE
);
710 ret
= jaylink_get_caps(devh
, caps
);
712 if (ret
!= JAYLINK_OK
) {
713 LOG_ERROR("jaylink_get_caps() failed: %s.", jaylink_strerror(ret
));
715 jaylink_exit(jayctx
);
716 return ERROR_JTAG_INIT_FAILED
;
719 if (jaylink_has_cap(caps
, JAYLINK_DEV_CAP_GET_EXT_CAPS
)) {
720 ret
= jaylink_get_extended_caps(devh
, caps
);
722 if (ret
!= JAYLINK_OK
) {
723 LOG_ERROR("jaylink_get_extended_caps() failed: %s.",
724 jaylink_strerror(ret
));
726 jaylink_exit(jayctx
);
727 return ERROR_JTAG_INIT_FAILED
;
731 jtag_command_version
= JAYLINK_JTAG_VERSION_2
;
733 if (jaylink_has_cap(caps
, JAYLINK_DEV_CAP_GET_HW_VERSION
)) {
734 ret
= jaylink_get_hardware_version(devh
, &hwver
);
736 if (ret
!= JAYLINK_OK
) {
737 LOG_ERROR("Failed to retrieve hardware version: %s.",
738 jaylink_strerror(ret
));
740 jaylink_exit(jayctx
);
741 return ERROR_JTAG_INIT_FAILED
;
744 LOG_INFO("Hardware version: %u.%02u", hwver
.major
, hwver
.minor
);
746 if (hwver
.major
>= 5)
747 jtag_command_version
= JAYLINK_JTAG_VERSION_3
;
750 if (iface
== JAYLINK_TIF_SWD
) {
752 * Adjust the SWD transaction buffer size in case there is already
753 * allocated memory on the device. This happens for example if the
754 * memory for SWO capturing is still allocated because the software
755 * which used the device before has not been shut down properly.
757 if (!adjust_swd_buffer_size()) {
759 jaylink_exit(jayctx
);
760 return ERROR_JTAG_INIT_FAILED
;
764 if (jaylink_has_cap(caps
, JAYLINK_DEV_CAP_READ_CONFIG
)) {
765 if (!read_device_config(&config
)) {
766 LOG_ERROR("Failed to read device configuration data.");
768 jaylink_exit(jayctx
);
769 return ERROR_JTAG_INIT_FAILED
;
772 memcpy(&tmp_config
, &config
, sizeof(struct device_config
));
775 ret
= jaylink_get_hardware_status(devh
, &hwstatus
);
777 if (ret
!= JAYLINK_OK
) {
778 LOG_ERROR("jaylink_get_hardware_status() failed: %s.",
779 jaylink_strerror(ret
));
781 jaylink_exit(jayctx
);
782 return ERROR_JTAG_INIT_FAILED
;
785 LOG_INFO("VTarget = %u.%03u V", hwstatus
.target_voltage
/ 1000,
786 hwstatus
.target_voltage
% 1000);
790 strcpy(conn
.hid
, "0.0.0.0");
794 ret
= jlink_register();
796 if (ret
!= ERROR_OK
) {
798 jaylink_exit(jayctx
);
799 return ERROR_JTAG_INIT_FAILED
;
802 ret
= select_interface();
804 if (ret
!= ERROR_OK
) {
806 jaylink_exit(jayctx
);
814 jlink_speed(jtag_get_speed_khz());
816 if (iface
== JAYLINK_TIF_JTAG
) {
818 * J-Link devices with firmware version v5 and v6 seems to have an issue
819 * if the first tap move is not divisible by 8, so we send a TLR on
823 jlink_clock_data(NULL
, 0, &tms
, 0, NULL
, 0, 8);
831 static int jlink_quit(void)
837 ret
= jaylink_swo_stop(devh
);
839 if (ret
!= JAYLINK_OK
)
840 LOG_ERROR("jaylink_swo_stop() failed: %s.", jaylink_strerror(ret
));
843 if (jaylink_has_cap(caps
, JAYLINK_DEV_CAP_REGISTER
)) {
844 ret
= jaylink_unregister(devh
, &conn
, connlist
, &count
);
846 if (ret
!= JAYLINK_OK
)
847 LOG_ERROR("jaylink_unregister() failed: %s.",
848 jaylink_strerror(ret
));
852 jaylink_exit(jayctx
);
857 /***************************************************************************/
858 /* Queue command implementations */
860 static void jlink_end_state(tap_state_t state
)
862 if (tap_is_state_stable(state
))
863 tap_set_end_state(state
);
865 LOG_ERROR("BUG: %i is not a valid end state", state
);
870 /* Goes to the end state. */
871 static void jlink_state_move(void)
874 uint8_t tms_scan_bits
;
876 tms_scan
= tap_get_tms_path(tap_get_state(), tap_get_end_state());
877 tms_scan_bits
= tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
879 jlink_clock_data(NULL
, 0, &tms_scan
, 0, NULL
, 0, tms_scan_bits
);
881 tap_set_state(tap_get_end_state());
884 static void jlink_path_move(int num_states
, tap_state_t
*path
)
889 for (i
= 0; i
< num_states
; i
++) {
890 if (path
[i
] == tap_state_transition(tap_get_state(), false))
891 jlink_clock_data(NULL
, 0, NULL
, 0, NULL
, 0, 1);
892 else if (path
[i
] == tap_state_transition(tap_get_state(), true))
893 jlink_clock_data(NULL
, 0, &tms
, 0, NULL
, 0, 1);
895 LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition.",
896 tap_state_name(tap_get_state()), tap_state_name(path
[i
]));
900 tap_set_state(path
[i
]);
903 tap_set_end_state(tap_get_state());
906 static void jlink_stableclocks(int num_cycles
)
910 uint8_t tms
= tap_get_state() == TAP_RESET
;
911 /* Execute num_cycles. */
912 for (i
= 0; i
< num_cycles
; i
++)
913 jlink_clock_data(NULL
, 0, &tms
, 0, NULL
, 0, 1);
916 static void jlink_runtest(int num_cycles
)
918 tap_state_t saved_end_state
= tap_get_end_state();
920 /* Only do a state_move when we're not already in IDLE. */
921 if (tap_get_state() != TAP_IDLE
) {
922 jlink_end_state(TAP_IDLE
);
927 jlink_stableclocks(num_cycles
);
929 /* Finish in end_state. */
930 jlink_end_state(saved_end_state
);
932 if (tap_get_state() != tap_get_end_state())
936 static void jlink_reset(int trst
, int srst
)
938 LOG_DEBUG("TRST: %i, SRST: %i.", trst
, srst
);
940 /* Signals are active low. */
942 jaylink_set_reset(devh
);
945 jaylink_clear_reset(devh
);
948 jaylink_jtag_clear_trst(devh
);
951 jaylink_jtag_set_trst(devh
);
954 static int jlink_reset_safe(int trst
, int srst
)
957 jlink_reset(trst
, srst
);
958 return jlink_flush();
961 COMMAND_HANDLER(jlink_usb_command
)
966 command_print(CMD
, "Need exactly one argument for jlink usb.");
967 return ERROR_COMMAND_SYNTAX_ERROR
;
970 if (sscanf(CMD_ARGV
[0], "%i", &tmp
) != 1) {
971 command_print(CMD
, "Invalid USB address: %s.", CMD_ARGV
[0]);
975 if (tmp
< JAYLINK_USB_ADDRESS_0
|| tmp
> JAYLINK_USB_ADDRESS_3
) {
976 command_print(CMD
, "Invalid USB address: %s.", CMD_ARGV
[0]);
982 use_serial_number
= false;
983 use_usb_address
= true;
988 COMMAND_HANDLER(jlink_serial_command
)
993 command_print(CMD
, "Need exactly one argument for jlink serial.");
994 return ERROR_COMMAND_SYNTAX_ERROR
;
997 ret
= jaylink_parse_serial_number(CMD_ARGV
[0], &serial_number
);
999 if (ret
== JAYLINK_ERR
) {
1000 command_print(CMD
, "Invalid serial number: %s.", CMD_ARGV
[0]);
1002 } else if (ret
!= JAYLINK_OK
) {
1003 command_print(CMD
, "jaylink_parse_serial_number() failed: %s.",
1004 jaylink_strerror(ret
));
1008 use_serial_number
= true;
1009 use_usb_address
= false;
1014 COMMAND_HANDLER(jlink_handle_hwstatus_command
)
1017 struct jaylink_hardware_status status
;
1019 ret
= jaylink_get_hardware_status(devh
, &status
);
1021 if (ret
!= JAYLINK_OK
) {
1022 command_print(CMD
, "jaylink_get_hardware_status() failed: %s.",
1023 jaylink_strerror(ret
));
1027 command_print(CMD
, "VTarget = %u.%03u V",
1028 status
.target_voltage
/ 1000, status
.target_voltage
% 1000);
1030 command_print(CMD
, "TCK = %u TDI = %u TDO = %u TMS = %u SRST = %u "
1031 "TRST = %u", status
.tck
, status
.tdi
, status
.tdo
, status
.tms
,
1032 status
.tres
, status
.trst
);
1034 if (status
.target_voltage
< 1500)
1035 command_print(CMD
, "Target voltage too low. Check target power.");
1040 COMMAND_HANDLER(jlink_handle_free_memory_command
)
1045 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_GET_FREE_MEMORY
)) {
1046 command_print(CMD
, "Retrieval of free memory is not supported by "
1051 ret
= jaylink_get_free_memory(devh
, &tmp
);
1053 if (ret
!= JAYLINK_OK
) {
1054 command_print(CMD
, "jaylink_get_free_memory() failed: %s.",
1055 jaylink_strerror(ret
));
1059 command_print(CMD
, "Device has %" PRIu32
" bytes of free memory.", tmp
);
1064 COMMAND_HANDLER(jlink_handle_jlink_jtag_command
)
1070 switch (jtag_command_version
) {
1071 case JAYLINK_JTAG_VERSION_2
:
1074 case JAYLINK_JTAG_VERSION_3
:
1081 command_print(CMD
, "JTAG command version: %i", version
);
1082 } else if (CMD_ARGC
== 1) {
1083 if (sscanf(CMD_ARGV
[0], "%i", &tmp
) != 1) {
1084 command_print(CMD
, "Invalid argument: %s.", CMD_ARGV
[0]);
1085 return ERROR_COMMAND_SYNTAX_ERROR
;
1090 jtag_command_version
= JAYLINK_JTAG_VERSION_2
;
1093 jtag_command_version
= JAYLINK_JTAG_VERSION_3
;
1096 command_print(CMD
, "Invalid argument: %s.", CMD_ARGV
[0]);
1097 return ERROR_COMMAND_SYNTAX_ERROR
;
1100 command_print(CMD
, "Need exactly one argument for jlink jtag.");
1101 return ERROR_COMMAND_SYNTAX_ERROR
;
1107 COMMAND_HANDLER(jlink_handle_target_power_command
)
1112 if (CMD_ARGC
!= 1) {
1113 command_print(CMD
, "Need exactly one argument for jlink "
1115 return ERROR_COMMAND_SYNTAX_ERROR
;
1118 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_SET_TARGET_POWER
)) {
1119 command_print(CMD
, "Target power supply is not supported by the "
1124 if (!strcmp(CMD_ARGV
[0], "on")) {
1126 } else if (!strcmp(CMD_ARGV
[0], "off")) {
1129 command_print(CMD
, "Invalid argument: %s.", CMD_ARGV
[0]);
1133 ret
= jaylink_set_target_power(devh
, enable
);
1135 if (ret
!= JAYLINK_OK
) {
1136 command_print(CMD
, "jaylink_set_target_power() failed: %s.",
1137 jaylink_strerror(ret
));
1144 static void show_config_usb_address(struct command_invocation
*cmd
)
1146 if (config
.usb_address
!= tmp_config
.usb_address
)
1147 command_print(cmd
, "USB address: %u [%u]", config
.usb_address
,
1148 tmp_config
.usb_address
);
1150 command_print(cmd
, "USB address: %u", config
.usb_address
);
1153 static void show_config_ip_address(struct command_invocation
*cmd
)
1155 if (!memcmp(config
.ip_address
, tmp_config
.ip_address
, 4))
1156 command_print(cmd
, "IP address: %d.%d.%d.%d",
1157 config
.ip_address
[3], config
.ip_address
[2],
1158 config
.ip_address
[1], config
.ip_address
[0]);
1160 command_print(cmd
, "IP address: %d.%d.%d.%d [%d.%d.%d.%d]",
1161 config
.ip_address
[3], config
.ip_address
[2],
1162 config
.ip_address
[1], config
.ip_address
[0],
1163 tmp_config
.ip_address
[3], tmp_config
.ip_address
[2],
1164 tmp_config
.ip_address
[1], tmp_config
.ip_address
[0]);
1166 if (!memcmp(config
.subnet_mask
, tmp_config
.subnet_mask
, 4))
1167 command_print(cmd
, "Subnet mask: %d.%d.%d.%d",
1168 config
.subnet_mask
[3], config
.subnet_mask
[2],
1169 config
.subnet_mask
[1], config
.subnet_mask
[0]);
1171 command_print(cmd
, "Subnet mask: %d.%d.%d.%d [%d.%d.%d.%d]",
1172 config
.subnet_mask
[3], config
.subnet_mask
[2],
1173 config
.subnet_mask
[1], config
.subnet_mask
[0],
1174 tmp_config
.subnet_mask
[3], tmp_config
.subnet_mask
[2],
1175 tmp_config
.subnet_mask
[1], tmp_config
.subnet_mask
[0]);
1178 static void show_config_mac_address(struct command_invocation
*cmd
)
1180 if (!memcmp(config
.mac_address
, tmp_config
.mac_address
, 6))
1181 command_print(cmd
, "MAC address: %.02x:%.02x:%.02x:%.02x:%.02x:%.02x",
1182 config
.mac_address
[5], config
.mac_address
[4],
1183 config
.mac_address
[3], config
.mac_address
[2],
1184 config
.mac_address
[1], config
.mac_address
[0]);
1186 command_print(cmd
, "MAC address: %.02x:%.02x:%.02x:%.02x:%.02x:%.02x "
1187 "[%.02x:%.02x:%.02x:%.02x:%.02x:%.02x]",
1188 config
.mac_address
[5], config
.mac_address
[4],
1189 config
.mac_address
[3], config
.mac_address
[2],
1190 config
.mac_address
[1], config
.mac_address
[0],
1191 tmp_config
.mac_address
[5], tmp_config
.mac_address
[4],
1192 tmp_config
.mac_address
[3], tmp_config
.mac_address
[2],
1193 tmp_config
.mac_address
[1], tmp_config
.mac_address
[0]);
1196 static void show_config_target_power(struct command_invocation
*cmd
)
1198 const char *target_power
;
1199 const char *current_target_power
;
1201 if (!config
.target_power
)
1202 target_power
= "off";
1204 target_power
= "on";
1206 if (!tmp_config
.target_power
)
1207 current_target_power
= "off";
1209 current_target_power
= "on";
1211 if (config
.target_power
!= tmp_config
.target_power
)
1212 command_print(cmd
, "Target power supply: %s [%s]", target_power
,
1213 current_target_power
);
1215 command_print(cmd
, "Target power supply: %s", target_power
);
1218 static void show_config(struct command_invocation
*cmd
)
1220 command_print(cmd
, "J-Link device configuration:");
1222 show_config_usb_address(cmd
);
1224 if (jaylink_has_cap(caps
, JAYLINK_DEV_CAP_SET_TARGET_POWER
))
1225 show_config_target_power(cmd
);
1227 if (jaylink_has_cap(caps
, JAYLINK_DEV_CAP_ETHERNET
)) {
1228 show_config_ip_address(cmd
);
1229 show_config_mac_address(cmd
);
1233 static int poll_trace(uint8_t *buf
, size_t *size
)
1240 ret
= jaylink_swo_read(devh
, buf
, &length
);
1242 if (ret
!= JAYLINK_OK
) {
1243 LOG_ERROR("jaylink_swo_read() failed: %s.", jaylink_strerror(ret
));
1252 static uint32_t calculate_trace_buffer_size(void)
1257 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_GET_FREE_MEMORY
))
1260 ret
= jaylink_get_free_memory(devh
, &tmp
);
1262 if (ret
!= JAYLINK_OK
) {
1263 LOG_ERROR("jaylink_get_free_memory() failed: %s.",
1264 jaylink_strerror(ret
));
1268 if (tmp
> 0x3fff || tmp
<= 0x600)
1273 return tmp
& 0xffffff00;
1276 static bool calculate_swo_prescaler(unsigned int traceclkin_freq
,
1277 uint32_t trace_freq
, uint16_t *prescaler
)
1279 unsigned int presc
= (traceclkin_freq
+ trace_freq
/ 2) / trace_freq
;
1280 if (presc
== 0 || presc
> TPIU_ACPR_MAX_SWOSCALER
+ 1)
1283 /* Probe's UART speed must be within 3% of the TPIU's SWO baud rate. */
1284 unsigned int max_deviation
= (traceclkin_freq
* 3) / 100;
1285 if (presc
* trace_freq
< traceclkin_freq
- max_deviation
||
1286 presc
* trace_freq
> traceclkin_freq
+ max_deviation
)
1294 static bool detect_swo_freq_and_prescaler(struct jaylink_swo_speed speed
,
1295 unsigned int traceclkin_freq
, unsigned int *trace_freq
,
1296 uint16_t *prescaler
)
1302 for (divider
= speed
.min_div
; divider
<= speed
.max_div
; divider
++) {
1303 *trace_freq
= speed
.freq
/ divider
;
1304 presc
= ((1.0 - SWO_MAX_FREQ_DEV
) * traceclkin_freq
) / *trace_freq
+ 1;
1306 if (presc
> TPIU_ACPR_MAX_SWOSCALER
+ 1)
1309 deviation
= fabs(1.0 - ((double)*trace_freq
* presc
/ traceclkin_freq
));
1311 if (deviation
<= SWO_MAX_FREQ_DEV
) {
1320 static int config_trace(bool enabled
, enum tpiu_pin_protocol pin_protocol
,
1321 uint32_t port_size
, unsigned int *trace_freq
,
1322 unsigned int traceclkin_freq
, uint16_t *prescaler
)
1325 uint32_t buffer_size
;
1326 struct jaylink_swo_speed speed
;
1331 trace_enabled
= enabled
;
1333 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_SWO
)) {
1337 LOG_ERROR("Trace capturing is not supported by the device.");
1341 ret
= jaylink_swo_stop(devh
);
1343 if (ret
!= JAYLINK_OK
) {
1344 LOG_ERROR("jaylink_swo_stop() failed: %s.", jaylink_strerror(ret
));
1350 * Adjust the SWD transaction buffer size as stopping SWO capturing
1351 * deallocates device internal memory.
1353 if (!adjust_swd_buffer_size())
1359 if (pin_protocol
!= TPIU_PIN_PROTOCOL_ASYNC_UART
) {
1360 LOG_ERROR("Selected pin protocol is not supported.");
1364 buffer_size
= calculate_trace_buffer_size();
1367 LOG_ERROR("Not enough free device memory to start trace capturing.");
1371 ret
= jaylink_swo_get_speeds(devh
, JAYLINK_SWO_MODE_UART
, &speed
);
1373 if (ret
!= JAYLINK_OK
) {
1374 LOG_ERROR("jaylink_swo_get_speeds() failed: %s.",
1375 jaylink_strerror(ret
));
1379 if (*trace_freq
> 0) {
1380 divider
= speed
.freq
/ *trace_freq
;
1381 min_freq
= speed
.freq
/ speed
.max_div
;
1382 max_freq
= speed
.freq
/ speed
.min_div
;
1384 if (*trace_freq
> max_freq
) {
1385 LOG_INFO("Given SWO frequency too high, using %" PRIu32
" Hz instead.",
1387 *trace_freq
= max_freq
;
1388 } else if (*trace_freq
< min_freq
) {
1389 LOG_INFO("Given SWO frequency too low, using %" PRIu32
" Hz instead.",
1391 *trace_freq
= min_freq
;
1392 } else if (*trace_freq
!= speed
.freq
/ divider
) {
1393 *trace_freq
= speed
.freq
/ divider
;
1395 LOG_INFO("Given SWO frequency is not supported by the device, "
1396 "using %u Hz instead.", *trace_freq
);
1399 if (!calculate_swo_prescaler(traceclkin_freq
, *trace_freq
,
1401 LOG_ERROR("SWO frequency is not suitable. Please choose a "
1402 "different frequency or use auto-detection.");
1406 LOG_INFO("Trying to auto-detect SWO frequency.");
1408 if (!detect_swo_freq_and_prescaler(speed
, traceclkin_freq
, trace_freq
,
1410 LOG_ERROR("Maximum permitted frequency deviation of %.02f %% "
1411 "could not be achieved.", SWO_MAX_FREQ_DEV
);
1412 LOG_ERROR("Auto-detection of SWO frequency failed.");
1416 LOG_INFO("Using SWO frequency of %u Hz.", *trace_freq
);
1419 ret
= jaylink_swo_start(devh
, JAYLINK_SWO_MODE_UART
, *trace_freq
,
1422 if (ret
!= JAYLINK_OK
) {
1423 LOG_ERROR("jaylink_start_swo() failed: %s.", jaylink_strerror(ret
));
1427 LOG_DEBUG("Using %" PRIu32
" bytes device memory for trace capturing.",
1431 * Adjust the SWD transaction buffer size as starting SWO capturing
1432 * allocates device internal memory.
1434 if (!adjust_swd_buffer_size())
1440 COMMAND_HANDLER(jlink_handle_config_usb_address_command
)
1444 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_READ_CONFIG
)) {
1445 command_print(CMD
, "Reading configuration is not supported by the "
1451 show_config_usb_address(CMD
);
1452 } else if (CMD_ARGC
== 1) {
1453 if (sscanf(CMD_ARGV
[0], "%" SCNd8
, &tmp
) != 1) {
1454 command_print(CMD
, "Invalid USB address: %s.", CMD_ARGV
[0]);
1458 if (tmp
> JAYLINK_USB_ADDRESS_3
) {
1459 command_print(CMD
, "Invalid USB address: %u.", tmp
);
1463 tmp_config
.usb_address
= tmp
;
1465 command_print(CMD
, "Need exactly one argument for jlink config "
1467 return ERROR_COMMAND_SYNTAX_ERROR
;
1473 COMMAND_HANDLER(jlink_handle_config_target_power_command
)
1477 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_READ_CONFIG
)) {
1478 command_print(CMD
, "Reading configuration is not supported by the "
1483 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_SET_TARGET_POWER
)) {
1484 command_print(CMD
, "Target power supply is not supported by the "
1490 show_config_target_power(CMD
);
1491 } else if (CMD_ARGC
== 1) {
1492 if (!strcmp(CMD_ARGV
[0], "on")) {
1494 } else if (!strcmp(CMD_ARGV
[0], "off")) {
1497 command_print(CMD
, "Invalid argument: %s.", CMD_ARGV
[0]);
1501 tmp_config
.target_power
= enable
;
1503 command_print(CMD
, "Need exactly one argument for jlink config "
1505 return ERROR_COMMAND_SYNTAX_ERROR
;
1511 COMMAND_HANDLER(jlink_handle_config_mac_address_command
)
1518 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_READ_CONFIG
)) {
1519 command_print(CMD
, "Reading configuration is not supported by the "
1524 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_ETHERNET
)) {
1525 command_print(CMD
, "Ethernet connectivity is not supported by the "
1531 show_config_mac_address(CMD
);
1532 } else if (CMD_ARGC
== 1) {
1535 if ((strlen(str
) != 17) || (str
[2] != ':' || str
[5] != ':' ||
1536 str
[8] != ':' || str
[11] != ':' || str
[14] != ':')) {
1537 command_print(CMD
, "Invalid MAC address format.");
1538 return ERROR_COMMAND_SYNTAX_ERROR
;
1541 for (i
= 5; i
>= 0; i
--) {
1542 addr
[i
] = strtoul(str
, &e
, 16);
1546 if (!(addr
[0] | addr
[1] | addr
[2] | addr
[3] | addr
[4] | addr
[5])) {
1547 command_print(CMD
, "Invalid MAC address: zero address.");
1548 return ERROR_COMMAND_SYNTAX_ERROR
;
1551 if (!(0x01 & addr
[0])) {
1552 command_print(CMD
, "Invalid MAC address: multicast address.");
1553 return ERROR_COMMAND_SYNTAX_ERROR
;
1556 memcpy(tmp_config
.mac_address
, addr
, sizeof(addr
));
1558 command_print(CMD
, "Need exactly one argument for jlink config "
1560 return ERROR_COMMAND_SYNTAX_ERROR
;
1566 static bool string_to_ip(const char *s
, uint8_t *ip
, int *pos
)
1570 const char *s_save
= s
;
1576 for (i
= 0; i
< 4; i
++) {
1577 lip
[i
] = strtoul(s
, &e
, 10);
1579 if (*e
!= '.' && i
!= 3)
1586 memcpy(ip
, lip
, sizeof(lip
));
1591 static void cpy_ip(uint8_t *dst
, uint8_t *src
)
1595 for (i
= 0, j
= 3; i
< 4; i
++, j
--)
1599 COMMAND_HANDLER(jlink_handle_config_ip_address_command
)
1601 uint8_t ip_address
[4];
1602 uint32_t subnet_mask
= 0;
1604 uint8_t subnet_bits
= 24;
1606 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_READ_CONFIG
)) {
1607 command_print(CMD
, "Reading configuration is not supported by the "
1612 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_ETHERNET
)) {
1613 command_print(CMD
, "Ethernet connectivity is not supported by the "
1619 show_config_ip_address(CMD
);
1621 if (!string_to_ip(CMD_ARGV
[0], ip_address
, &i
))
1622 return ERROR_COMMAND_SYNTAX_ERROR
;
1624 len
= strlen(CMD_ARGV
[0]);
1626 /* Check for format A.B.C.D/E. */
1628 if (CMD_ARGV
[0][i
] != '/')
1629 return ERROR_COMMAND_SYNTAX_ERROR
;
1631 COMMAND_PARSE_NUMBER(u8
, CMD_ARGV
[0] + i
+ 1, subnet_bits
);
1632 } else if (CMD_ARGC
> 1) {
1633 if (!string_to_ip(CMD_ARGV
[1], (uint8_t *)&subnet_mask
, &i
))
1634 return ERROR_COMMAND_SYNTAX_ERROR
;
1638 subnet_mask
= (uint32_t)(subnet_bits
< 32 ?
1639 ((1ULL << subnet_bits
) - 1) : 0xffffffff);
1641 cpy_ip(tmp_config
.ip_address
, ip_address
);
1642 cpy_ip(tmp_config
.subnet_mask
, (uint8_t *)&subnet_mask
);
1648 COMMAND_HANDLER(jlink_handle_config_reset_command
)
1650 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_READ_CONFIG
))
1653 memcpy(&tmp_config
, &config
, sizeof(struct device_config
));
1659 COMMAND_HANDLER(jlink_handle_config_write_command
)
1663 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_READ_CONFIG
)) {
1664 command_print(CMD
, "Reading configuration is not supported by the "
1669 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_WRITE_CONFIG
)) {
1670 command_print(CMD
, "Writing configuration is not supported by the "
1675 if (!memcmp(&config
, &tmp_config
, sizeof(struct device_config
))) {
1676 command_print(CMD
, "Operation not performed due to no changes in "
1677 "the configuration.");
1681 ret
= jaylink_write_raw_config(devh
, (const uint8_t *)&tmp_config
);
1683 if (ret
!= JAYLINK_OK
) {
1684 LOG_ERROR("jaylink_write_raw_config() failed: %s.",
1685 jaylink_strerror(ret
));
1689 if (!read_device_config(&config
)) {
1690 LOG_ERROR("Failed to read device configuration for verification.");
1694 if (memcmp(&config
, &tmp_config
, sizeof(struct device_config
))) {
1695 LOG_ERROR("Verification of device configuration failed. Please check "
1700 memcpy(&tmp_config
, &config
, sizeof(struct device_config
));
1701 command_print(CMD
, "The new device configuration applies after power "
1702 "cycling the J-Link device.");
1707 COMMAND_HANDLER(jlink_handle_config_command
)
1709 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_READ_CONFIG
)) {
1710 command_print(CMD
, "Device doesn't support reading configuration.");
1720 COMMAND_HANDLER(jlink_handle_emucom_write_command
)
1730 return ERROR_COMMAND_SYNTAX_ERROR
;
1732 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_EMUCOM
)) {
1733 LOG_ERROR("Device does not support EMUCOM.");
1737 COMMAND_PARSE_NUMBER(u32
, CMD_ARGV
[0], channel
);
1739 tmp
= strlen(CMD_ARGV
[1]);
1742 LOG_ERROR("Data must be encoded as hexadecimal pairs.");
1743 return ERROR_COMMAND_ARGUMENT_INVALID
;
1746 buf
= malloc(tmp
/ 2);
1749 LOG_ERROR("Failed to allocate buffer.");
1753 dummy
= unhexify(buf
, CMD_ARGV
[1], tmp
/ 2);
1755 if (dummy
!= (tmp
/ 2)) {
1756 LOG_ERROR("Data must be encoded as hexadecimal pairs.");
1758 return ERROR_COMMAND_ARGUMENT_INVALID
;
1762 ret
= jaylink_emucom_write(devh
, channel
, buf
, &length
);
1766 if (ret
== JAYLINK_ERR_DEV_NOT_SUPPORTED
) {
1767 LOG_ERROR("Channel not supported by the device.");
1769 } else if (ret
!= JAYLINK_OK
) {
1770 LOG_ERROR("Failed to write to channel: %s.", jaylink_strerror(ret
));
1774 if (length
!= (tmp
/ 2))
1775 LOG_WARNING("Only %" PRIu32
" bytes written to the channel.", length
);
1780 COMMAND_HANDLER(jlink_handle_emucom_read_command
)
1789 return ERROR_COMMAND_SYNTAX_ERROR
;
1791 if (!jaylink_has_cap(caps
, JAYLINK_DEV_CAP_EMUCOM
)) {
1792 LOG_ERROR("Device does not support EMUCOM.");
1796 COMMAND_PARSE_NUMBER(u32
, CMD_ARGV
[0], channel
);
1797 COMMAND_PARSE_NUMBER(u32
, CMD_ARGV
[1], length
);
1799 buf
= malloc(length
* 3 + 1);
1802 LOG_ERROR("Failed to allocate buffer.");
1806 ret
= jaylink_emucom_read(devh
, channel
, buf
, &length
);
1808 if (ret
== JAYLINK_ERR_DEV_NOT_SUPPORTED
) {
1809 LOG_ERROR("Channel is not supported by the device.");
1812 } else if (ret
== JAYLINK_ERR_DEV_NOT_AVAILABLE
) {
1813 LOG_ERROR("Channel is not available for the requested amount of data. "
1814 "%" PRIu32
" bytes are available.", length
);
1817 } else if (ret
!= JAYLINK_OK
) {
1818 LOG_ERROR("Failed to read from channel: %s.", jaylink_strerror(ret
));
1823 tmp
= hexify((char *)buf
+ length
, buf
, length
, 2 * length
+ 1);
1825 if (tmp
!= 2 * length
) {
1826 LOG_ERROR("Failed to convert data into hexadecimal string.");
1831 command_print(CMD
, "%s", buf
+ length
);
1837 static const struct command_registration jlink_config_subcommand_handlers
[] = {
1840 .handler
= &jlink_handle_config_usb_address_command
,
1841 .mode
= COMMAND_EXEC
,
1842 .help
= "set the USB address",
1846 .name
= "targetpower",
1847 .handler
= &jlink_handle_config_target_power_command
,
1848 .mode
= COMMAND_EXEC
,
1849 .help
= "set the target power supply",
1854 .handler
= &jlink_handle_config_mac_address_command
,
1855 .mode
= COMMAND_EXEC
,
1856 .help
= "set the MAC Address",
1857 .usage
= "[ff:ff:ff:ff:ff:ff]",
1861 .handler
= &jlink_handle_config_ip_address_command
,
1862 .mode
= COMMAND_EXEC
,
1863 .help
= "set the IP address, where A.B.C.D is the IP address, "
1864 "E the bit of the subnet mask, F.G.H.I the subnet mask",
1865 .usage
= "[A.B.C.D[/E] [F.G.H.I]]",
1869 .handler
= &jlink_handle_config_reset_command
,
1870 .mode
= COMMAND_EXEC
,
1871 .help
= "undo configuration changes",
1876 .handler
= &jlink_handle_config_write_command
,
1877 .mode
= COMMAND_EXEC
,
1878 .help
= "write configuration to the device",
1881 COMMAND_REGISTRATION_DONE
1884 static const struct command_registration jlink_emucom_subcommand_handlers
[] = {
1887 .handler
= &jlink_handle_emucom_write_command
,
1888 .mode
= COMMAND_EXEC
,
1889 .help
= "write to a channel",
1890 .usage
= "<channel> <data>",
1894 .handler
= &jlink_handle_emucom_read_command
,
1895 .mode
= COMMAND_EXEC
,
1896 .help
= "read from a channel",
1897 .usage
= "<channel> <length>"
1899 COMMAND_REGISTRATION_DONE
1902 static const struct command_registration jlink_subcommand_handlers
[] = {
1905 .handler
= &jlink_handle_jlink_jtag_command
,
1906 .mode
= COMMAND_EXEC
,
1907 .help
= "select the JTAG command version",
1911 .name
= "targetpower",
1912 .handler
= &jlink_handle_target_power_command
,
1913 .mode
= COMMAND_EXEC
,
1914 .help
= "set the target power supply",
1919 .handler
= &jlink_handle_free_memory_command
,
1920 .mode
= COMMAND_EXEC
,
1921 .help
= "show free device memory",
1926 .handler
= &jlink_handle_hwstatus_command
,
1927 .mode
= COMMAND_EXEC
,
1928 .help
= "show the hardware status",
1933 .handler
= &jlink_usb_command
,
1934 .mode
= COMMAND_CONFIG
,
1935 .help
= "set the USB address of the device that should be used",
1940 .handler
= &jlink_serial_command
,
1941 .mode
= COMMAND_CONFIG
,
1942 .help
= "set the serial number of the device that should be used",
1943 .usage
= "<serial number>"
1947 .handler
= &jlink_handle_config_command
,
1948 .mode
= COMMAND_EXEC
,
1949 .help
= "access the device configuration. If no argument is given "
1950 "this will show the device configuration",
1951 .chain
= jlink_config_subcommand_handlers
,
1956 .mode
= COMMAND_EXEC
,
1957 .help
= "access EMUCOM channel",
1958 .chain
= jlink_emucom_subcommand_handlers
,
1961 COMMAND_REGISTRATION_DONE
1964 static const struct command_registration jlink_command_handlers
[] = {
1967 .mode
= COMMAND_ANY
,
1968 .help
= "perform jlink management",
1969 .chain
= jlink_subcommand_handlers
,
1972 COMMAND_REGISTRATION_DONE
1975 static int jlink_swd_init(void)
1977 iface
= JAYLINK_TIF_SWD
;
1982 static void jlink_swd_write_reg(uint8_t cmd
, uint32_t value
, uint32_t ap_delay_clk
)
1984 assert(!(cmd
& SWD_CMD_RnW
));
1985 jlink_swd_queue_cmd(cmd
, NULL
, value
, ap_delay_clk
);
1988 static void jlink_swd_read_reg(uint8_t cmd
, uint32_t *value
, uint32_t ap_delay_clk
)
1990 assert(cmd
& SWD_CMD_RnW
);
1991 jlink_swd_queue_cmd(cmd
, value
, 0, ap_delay_clk
);
1994 /***************************************************************************/
1995 /* J-Link tap functions */
1997 static unsigned tap_length
;
1998 /* In SWD mode use tms buffer for direction control */
1999 static uint8_t tms_buffer
[JLINK_TAP_BUFFER_SIZE
];
2000 static uint8_t tdi_buffer
[JLINK_TAP_BUFFER_SIZE
];
2001 static uint8_t tdo_buffer
[JLINK_TAP_BUFFER_SIZE
];
2003 struct pending_scan_result
{
2004 /** First bit position in tdo_buffer to read. */
2006 /** Number of bits to read. */
2008 /** Location to store the result */
2010 /** Offset in the destination buffer */
2011 unsigned buffer_offset
;
2014 #define MAX_PENDING_SCAN_RESULTS 256
2016 static int pending_scan_results_length
;
2017 static struct pending_scan_result pending_scan_results_buffer
[MAX_PENDING_SCAN_RESULTS
];
2019 static void jlink_tap_init(void)
2022 pending_scan_results_length
= 0;
2023 memset(tms_buffer
, 0, sizeof(tms_buffer
));
2024 memset(tdi_buffer
, 0, sizeof(tdi_buffer
));
2027 static void jlink_clock_data(const uint8_t *out
, unsigned out_offset
,
2028 const uint8_t *tms_out
, unsigned tms_offset
,
2029 uint8_t *in
, unsigned in_offset
,
2033 unsigned available_length
= JLINK_TAP_BUFFER_SIZE
- tap_length
/ 8;
2035 if (!available_length
||
2036 (in
&& pending_scan_results_length
== MAX_PENDING_SCAN_RESULTS
)) {
2037 if (jlink_flush() != ERROR_OK
)
2039 available_length
= JLINK_TAP_BUFFER_SIZE
;
2042 struct pending_scan_result
*pending_scan_result
=
2043 &pending_scan_results_buffer
[pending_scan_results_length
];
2045 unsigned scan_length
= length
> available_length
?
2046 available_length
: length
;
2049 buf_set_buf(out
, out_offset
, tdi_buffer
, tap_length
, scan_length
);
2051 buf_set_buf(tms_out
, tms_offset
, tms_buffer
, tap_length
, scan_length
);
2054 pending_scan_result
->first
= tap_length
;
2055 pending_scan_result
->length
= scan_length
;
2056 pending_scan_result
->buffer
= in
;
2057 pending_scan_result
->buffer_offset
= in_offset
;
2058 pending_scan_results_length
++;
2061 tap_length
+= scan_length
;
2062 out_offset
+= scan_length
;
2063 tms_offset
+= scan_length
;
2064 in_offset
+= scan_length
;
2065 length
-= scan_length
;
2066 } while (length
> 0);
2069 static int jlink_flush(void)
2077 jlink_last_state
= jtag_debug_state_machine(tms_buffer
, tdi_buffer
,
2078 tap_length
, jlink_last_state
);
2080 ret
= jaylink_jtag_io(devh
, tms_buffer
, tdi_buffer
, tdo_buffer
,
2081 tap_length
, jtag_command_version
);
2083 if (ret
!= JAYLINK_OK
) {
2084 LOG_ERROR("jaylink_jtag_io() failed: %s.", jaylink_strerror(ret
));
2086 return ERROR_JTAG_QUEUE_FAILED
;
2089 for (i
= 0; i
< pending_scan_results_length
; i
++) {
2090 struct pending_scan_result
*p
= &pending_scan_results_buffer
[i
];
2092 buf_set_buf(tdo_buffer
, p
->first
, p
->buffer
,
2093 p
->buffer_offset
, p
->length
);
2095 LOG_DEBUG_IO("Pending scan result, length = %d.", p
->length
);
2103 static void fill_buffer(uint8_t *buf
, uint32_t val
, uint32_t len
)
2105 unsigned int tap_pos
= tap_length
;
2108 buf_set_u32(buf
, tap_pos
, 32, val
);
2114 buf_set_u32(buf
, tap_pos
, len
, val
);
2117 static void jlink_queue_data_out(const uint8_t *data
, uint32_t len
)
2119 const uint32_t dir_out
= 0xffffffff;
2122 bit_copy(tdi_buffer
, tap_length
, data
, 0, len
);
2124 fill_buffer(tdi_buffer
, 0, len
);
2126 fill_buffer(tms_buffer
, dir_out
, len
);
2130 static void jlink_queue_data_in(uint32_t len
)
2132 const uint32_t dir_in
= 0;
2134 fill_buffer(tms_buffer
, dir_in
, len
);
2138 static int jlink_swd_switch_seq(enum swd_special_seq seq
)
2145 LOG_DEBUG("SWD line reset");
2146 s
= swd_seq_line_reset
;
2147 s_len
= swd_seq_line_reset_len
;
2150 LOG_DEBUG("JTAG-to-SWD");
2151 s
= swd_seq_jtag_to_swd
;
2152 s_len
= swd_seq_jtag_to_swd_len
;
2155 LOG_DEBUG("SWD-to-JTAG");
2156 s
= swd_seq_swd_to_jtag
;
2157 s_len
= swd_seq_swd_to_jtag_len
;
2160 LOG_ERROR("Sequence %d not supported.", seq
);
2164 jlink_queue_data_out(s
, s_len
);
2169 static int jlink_swd_run_queue(void)
2174 LOG_DEBUG("Executing %d queued transactions.", pending_scan_results_length
);
2176 if (queued_retval
!= ERROR_OK
) {
2177 LOG_DEBUG("Skipping due to previous errors: %d.", queued_retval
);
2182 * A transaction must be followed by another transaction or at least 8 idle
2183 * cycles to ensure that data is clocked through the AP.
2185 jlink_queue_data_out(NULL
, 8);
2187 ret
= jaylink_swd_io(devh
, tms_buffer
, tdi_buffer
, tdo_buffer
, tap_length
);
2189 if (ret
!= JAYLINK_OK
) {
2190 LOG_ERROR("jaylink_swd_io() failed: %s.", jaylink_strerror(ret
));
2194 for (i
= 0; i
< pending_scan_results_length
; i
++) {
2195 int ack
= buf_get_u32(tdo_buffer
, pending_scan_results_buffer
[i
].first
, 3);
2197 if (ack
!= SWD_ACK_OK
) {
2198 LOG_DEBUG("SWD ack not OK: %d %s", ack
,
2199 ack
== SWD_ACK_WAIT
? "WAIT" : ack
== SWD_ACK_FAULT
? "FAULT" : "JUNK");
2200 queued_retval
= ack
== SWD_ACK_WAIT
? ERROR_WAIT
: ERROR_FAIL
;
2202 } else if (pending_scan_results_buffer
[i
].length
) {
2203 uint32_t data
= buf_get_u32(tdo_buffer
, 3 + pending_scan_results_buffer
[i
].first
, 32);
2204 int parity
= buf_get_u32(tdo_buffer
, 3 + 32 + pending_scan_results_buffer
[i
].first
, 1);
2206 if (parity
!= parity_u32(data
)) {
2207 LOG_ERROR("SWD: Read data parity mismatch.");
2208 queued_retval
= ERROR_FAIL
;
2212 if (pending_scan_results_buffer
[i
].buffer
)
2213 *(uint32_t *)pending_scan_results_buffer
[i
].buffer
= data
;
2219 ret
= queued_retval
;
2220 queued_retval
= ERROR_OK
;
2225 static void jlink_swd_queue_cmd(uint8_t cmd
, uint32_t *dst
, uint32_t data
, uint32_t ap_delay_clk
)
2227 uint8_t data_parity_trn
[DIV_ROUND_UP(32 + 1, 8)];
2228 if (tap_length
+ 46 + 8 + ap_delay_clk
>= swd_buffer_size
* 8 ||
2229 pending_scan_results_length
== MAX_PENDING_SCAN_RESULTS
) {
2230 /* Not enough room in the queue. Run the queue. */
2231 queued_retval
= jlink_swd_run_queue();
2234 if (queued_retval
!= ERROR_OK
)
2237 cmd
|= SWD_CMD_START
| SWD_CMD_PARK
;
2239 jlink_queue_data_out(&cmd
, 8);
2241 pending_scan_results_buffer
[pending_scan_results_length
].first
= tap_length
;
2243 if (cmd
& SWD_CMD_RnW
) {
2244 /* Queue a read transaction. */
2245 pending_scan_results_buffer
[pending_scan_results_length
].length
= 32;
2246 pending_scan_results_buffer
[pending_scan_results_length
].buffer
= dst
;
2248 jlink_queue_data_in(1 + 3 + 32 + 1 + 1);
2250 /* Queue a write transaction. */
2251 pending_scan_results_buffer
[pending_scan_results_length
].length
= 0;
2252 jlink_queue_data_in(1 + 3 + 1);
2254 buf_set_u32(data_parity_trn
, 0, 32, data
);
2255 buf_set_u32(data_parity_trn
, 32, 1, parity_u32(data
));
2257 jlink_queue_data_out(data_parity_trn
, 32 + 1);
2260 pending_scan_results_length
++;
2262 /* Insert idle cycles after AP accesses to avoid WAIT. */
2263 if (cmd
& SWD_CMD_APnDP
)
2264 jlink_queue_data_out(NULL
, ap_delay_clk
);
2267 static const struct swd_driver jlink_swd
= {
2268 .init
= &jlink_swd_init
,
2269 .switch_seq
= &jlink_swd_switch_seq
,
2270 .read_reg
= &jlink_swd_read_reg
,
2271 .write_reg
= &jlink_swd_write_reg
,
2272 .run
= &jlink_swd_run_queue
,
2275 static const char * const jlink_transports
[] = { "jtag", "swd", NULL
};
2277 static struct jtag_interface jlink_interface
= {
2278 .execute_queue
= &jlink_execute_queue
,
2281 struct adapter_driver jlink_adapter_driver
= {
2283 .transports
= jlink_transports
,
2284 .commands
= jlink_command_handlers
,
2286 .init
= &jlink_init
,
2287 .quit
= &jlink_quit
,
2288 .reset
= &jlink_reset_safe
,
2289 .speed
= &jlink_speed
,
2291 .speed_div
= &jlink_speed_div
,
2292 .config_trace
= &config_trace
,
2293 .poll_trace
= &poll_trace
,
2295 .jtag_ops
= &jlink_interface
,
2296 .swd_ops
= &jlink_swd
,