1 /***************************************************************************
2 * Copyright (C) 2009 by Simon Qian <SimonQian@SimonQian.com> *
4 * This program is free software; you can redistribute it and/or modify *
5 * it under the terms of the GNU General Public License as published by *
6 * the Free Software Foundation; either version 2 of the License, or *
7 * (at your option) any later version. *
9 * This program is distributed in the hope that it will be useful, *
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
12 * GNU General Public License for more details. *
14 * You should have received a copy of the GNU General Public License *
15 * along with this program; if not, write to the *
16 * Free Software Foundation, Inc., *
17 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
18 ***************************************************************************/
20 /* Versaloon is a programming tool for multiple MCUs.
21 * OpenOCD and MSP430 supports are distributed under GPLv2.
22 * You can find it at http://www.SimonQian.com/en/Versaloon.
34 //#define _VSLLINK_IN_DEBUG_MODE_
36 #define VSLLINK_MODE_NORMAL 0
37 #define VSLLINK_MODE_DMA 1
39 static u16 vsllink_usb_vid
;
40 static u16 vsllink_usb_pid
;
41 static u8 vsllink_usb_bulkout
;
42 static u8 vsllink_usb_bulkin
;
43 static u8 vsllink_usb_interface
;
44 static u8 vsllink_mode
= VSLLINK_MODE_NORMAL
;
45 static int VSLLINK_USB_TIMEOUT
= 10000;
47 static int VSLLINK_BufferSize
= 1024;
49 /* Global USB buffers */
50 static int vsllink_usb_out_buffer_idx
;
51 static int vsllink_usb_in_want_length
;
52 static u8
* vsllink_usb_in_buffer
= NULL
;
53 static u8
* vsllink_usb_out_buffer
= NULL
;
55 /* Constants for VSLLink command */
56 #define VSLLINK_CMD_CONN 0x80
57 #define VSLLINK_CMD_DISCONN 0x81
58 #define VSLLINK_CMD_SET_SPEED 0x82
59 #define VSLLINK_CMD_SET_PORT 0x90
60 #define VSLLINK_CMD_GET_PORT 0x91
61 #define VSLLINK_CMD_SET_PORTDIR 0x92
62 #define VSLLINK_CMD_HW_JTAGSEQCMD 0xA0
63 #define VSLLINK_CMD_HW_JTAGHLCMD 0xA1
64 #define VSLLINK_CMD_HW_SWDCMD 0xA2
65 #define VSLLINK_CMD_HW_JTAGRAWCMD 0xA3
67 #define VSLLINK_CMDJTAGSEQ_TMSBYTE 0x00
68 #define VSLLINK_CMDJTAGSEQ_TMSCLOCK 0x40
69 #define VSLLINK_CMDJTAGSEQ_SCAN 0x80
71 #define VSLLINK_CMDJTAGSEQ_CMDMSK 0xC0
72 #define VSLLINK_CMDJTAGSEQ_LENMSK 0x3F
74 #define JTAG_PINMSK_SRST (1 << 0)
75 #define JTAG_PINMSK_TRST (1 << 1)
76 #define JTAG_PINMSK_USR1 (1 << 2)
77 #define JTAG_PINMSK_USR2 (1 << 3)
78 #define JTAG_PINMSK_TCK (1 << 4)
79 #define JTAG_PINMSK_TMS (1 << 5)
80 #define JTAG_PINMSK_TDI (1 << 6)
81 #define JTAG_PINMSK_TDO (1 << 7)
84 #define VSLLINK_TAP_MOVE(from, to) VSLLINK_tap_move[tap_move_ndx(from)][tap_move_ndx(to)]
86 /* VSLLINK_tap_move[i][j]: tap movement command to go from state i to state j
94 * SD->SD and SI->SI have to be caught in interface specific code
96 static u8 VSLLINK_tap_move
[6][6] =
98 /* TLR RTI SD PD SI PI */
99 {0xff, 0x7f, 0x2f, 0x0a, 0x37, 0x16}, /* TLR */
100 {0xff, 0x00, 0x45, 0x05, 0x4b, 0x0b}, /* RTI */
101 {0xff, 0x61, 0x00, 0x01, 0x0f, 0x2f}, /* SD */
102 {0xfe, 0x60, 0x40, 0x5c, 0x3c, 0x5e}, /* PD */
103 {0xff, 0x61, 0x07, 0x17, 0x00, 0x01}, /* SI */
104 {0xfe, 0x60, 0x38, 0x5c, 0x40, 0x5e} /* PI */
107 typedef struct insert_insignificant_operation
109 unsigned char insert_value
;
110 unsigned char insert_position
;
111 }insert_insignificant_operation_t
;
113 static insert_insignificant_operation_t VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT
[6][6] =
160 static u8 VSLLINK_BIT_MSK
[8] =
162 0x00, 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f
168 int length
; /* Number of bits to read */
169 scan_command_t
*command
; /* Corresponding scan command */
171 } pending_scan_result_t
;
173 #define MAX_PENDING_SCAN_RESULTS 256
175 static int pending_scan_results_length
;
176 static pending_scan_result_t pending_scan_results_buffer
[MAX_PENDING_SCAN_RESULTS
];
178 /* External interface functions */
179 static int vsllink_execute_queue(void);
180 static int vsllink_speed(int speed
);
181 static int vsllink_khz(int khz
, int *jtag_speed
);
182 static int vsllink_speed_div(int jtag_speed
, int *khz
);
183 static int vsllink_register_commands(struct command_context_s
*cmd_ctx
);
184 static int vsllink_init(void);
185 static int vsllink_quit(void);
187 /* CLI command handler functions */
188 static int vsllink_handle_usb_vid_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
189 static int vsllink_handle_usb_pid_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
190 static int vsllink_handle_usb_bulkin_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
191 static int vsllink_handle_usb_bulkout_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
192 static int vsllink_handle_usb_interface_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
193 static int vsllink_handle_mode_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
195 /* Queue command functions */
196 static void vsllink_end_state(tap_state_t state
);
197 static void vsllink_state_move_dma(void);
198 static void vsllink_state_move_normal(void);
199 static void (*vsllink_state_move
)(void);
200 static void vsllink_path_move_dma(int num_states
, tap_state_t
*path
);
201 static void vsllink_path_move_normal(int num_states
, tap_state_t
*path
);
202 static void (*vsllink_path_move
)(int num_states
, tap_state_t
*path
);
203 static void vsllink_runtest(int num_cycles
);
204 static void vsllink_stableclocks_dma(int num_cycles
, int tms
);
205 static void vsllink_stableclocks_normal(int num_cycles
, int tms
);
206 static void (*vsllink_stableclocks
)(int num_cycles
, int tms
);
207 static void vsllink_scan_dma(bool ir_scan
, enum scan_type type
, u8
*buffer
, int scan_size
, scan_command_t
*command
);
208 static void vsllink_scan_normal(bool ir_scan
, enum scan_type type
, u8
*buffer
, int scan_size
, scan_command_t
*command
);
209 static void (*vsllink_scan
)(bool ir_scan
, enum scan_type type
, u8
*buffer
, int scan_size
, scan_command_t
*command
);
210 static void vsllink_reset(int trst
, int srst
);
211 static void vsllink_simple_command(u8 command
);
212 static int vsllink_connect(void);
213 static int vsllink_disconnect(void);
215 /* VSLLink tap buffer functions */
216 static void vsllink_tap_append_step(int tms
, int tdi
);
217 static void vsllink_tap_init_dma(void);
218 static void vsllink_tap_init_normal(void);
219 static void (*vsllink_tap_init
)(void);
220 static int vsllink_tap_execute_dma(void);
221 static int vsllink_tap_execute_normal(void);
222 static int (*vsllink_tap_execute
)(void);
223 static void vsllink_tap_ensure_space_dma(int scans
, int length
);
224 static void vsllink_tap_ensure_space_normal(int scans
, int length
);
225 static void (*vsllink_tap_ensure_space
)(int scans
, int length
);
226 static void vsllink_tap_append_scan_dma(int length
, u8
*buffer
, scan_command_t
*command
);
227 static void vsllink_tap_append_scan_normal(int length
, u8
*buffer
, scan_command_t
*command
, int offset
);
229 /* VSLLink lowlevel functions */
230 typedef struct vsllink_jtag
232 struct usb_dev_handle
* usb_handle
;
235 static vsllink_jtag_t
*vsllink_usb_open(void);
236 static void vsllink_usb_close(vsllink_jtag_t
*vsllink_jtag
);
237 static int vsllink_usb_message(vsllink_jtag_t
*vsllink_jtag
, int out_length
, int in_length
);
238 static int vsllink_usb_write(vsllink_jtag_t
*vsllink_jtag
, int out_length
);
239 static int vsllink_usb_read(vsllink_jtag_t
*vsllink_jtag
);
241 #if defined _DEBUG_USB_COMMS_ || defined _DEBUG_JTAG_IO_
242 static void vsllink_debug_buffer(u8
*buffer
, int length
);
245 static int vsllink_tms_data_len
= 0;
246 static u8
* vsllink_tms_cmd_pos
;
248 static int tap_length
= 0;
249 static int tap_buffer_size
= 0;
250 static u8
*tms_buffer
= NULL
;
251 static u8
*tdi_buffer
= NULL
;
252 static u8
*tdo_buffer
= NULL
;
255 static vsllink_jtag_t
* vsllink_jtag_handle
= NULL
;
257 /***************************************************************************/
258 /* External interface implementation */
260 jtag_interface_t vsllink_interface
=
263 .execute_queue
= vsllink_execute_queue
,
264 .speed
= vsllink_speed
,
266 .speed_div
= vsllink_speed_div
,
267 .register_commands
= vsllink_register_commands
,
268 .init
= vsllink_init
,
272 static void reset_command_pointer(void)
274 if (vsllink_mode
== VSLLINK_MODE_NORMAL
)
276 vsllink_usb_out_buffer
[0] = VSLLINK_CMD_HW_JTAGSEQCMD
;
277 vsllink_usb_out_buffer_idx
= 3;
285 static int vsllink_execute_queue(void)
287 jtag_command_t
*cmd
= jtag_command_queue
;
292 DEBUG_JTAG_IO("--------------------------------- vsllink -------------------------------------");
294 reset_command_pointer();
300 DEBUG_JTAG_IO( "runtest %i cycles, end in %s", cmd
->cmd
.runtest
->num_cycles
, \
301 tap_state_name(cmd
->cmd
.runtest
->end_state
));
303 if (cmd
->cmd
.runtest
->end_state
!= TAP_INVALID
)
305 vsllink_end_state(cmd
->cmd
.runtest
->end_state
);
307 vsllink_runtest(cmd
->cmd
.runtest
->num_cycles
);
311 DEBUG_JTAG_IO("statemove end in %s", tap_state_name(cmd
->cmd
.statemove
->end_state
));
313 if (cmd
->cmd
.statemove
->end_state
!= TAP_INVALID
)
315 vsllink_end_state(cmd
->cmd
.statemove
->end_state
);
317 vsllink_state_move();
321 DEBUG_JTAG_IO("pathmove: %i states, end in %s", \
322 cmd
->cmd
.pathmove
->num_states
, \
323 tap_state_name(cmd
->cmd
.pathmove
->path
[cmd
->cmd
.pathmove
->num_states
- 1]));
325 vsllink_path_move(cmd
->cmd
.pathmove
->num_states
, cmd
->cmd
.pathmove
->path
);
329 if (cmd
->cmd
.scan
->end_state
!= TAP_INVALID
)
331 vsllink_end_state(cmd
->cmd
.scan
->end_state
);
334 scan_size
= jtag_build_buffer(cmd
->cmd
.scan
, &buffer
);
335 if (cmd
->cmd
.scan
->ir_scan
)
337 DEBUG_JTAG_IO("JTAG Scan write IR(%d bits), end in %s:", scan_size
, tap_state_name(cmd
->cmd
.scan
->end_state
));
341 DEBUG_JTAG_IO("JTAG Scan write DR(%d bits), end in %s:", scan_size
, tap_state_name(cmd
->cmd
.scan
->end_state
));
344 #ifdef _DEBUG_JTAG_IO_
345 vsllink_debug_buffer(buffer
, (scan_size
+ 7) >> 3);
348 type
= jtag_scan_type(cmd
->cmd
.scan
);
350 vsllink_scan(cmd
->cmd
.scan
->ir_scan
, type
, buffer
, scan_size
, cmd
->cmd
.scan
);
354 DEBUG_JTAG_IO("reset trst: %i srst %i", cmd
->cmd
.reset
->trst
, cmd
->cmd
.reset
->srst
);
356 vsllink_tap_execute();
358 if (cmd
->cmd
.reset
->trst
== 1)
360 tap_set_state(TAP_RESET
);
362 vsllink_reset(cmd
->cmd
.reset
->trst
, cmd
->cmd
.reset
->srst
);
366 DEBUG_JTAG_IO("sleep %i", cmd
->cmd
.sleep
->us
);
367 vsllink_tap_execute();
368 jtag_sleep(cmd
->cmd
.sleep
->us
);
371 case JTAG_STABLECLOCKS
:
372 DEBUG_JTAG_IO("add %d clocks", cmd
->cmd
.stableclocks
->num_cycles
);
373 switch(tap_get_state())
376 // tms should be '1' to stay in TAP_RESET mode
384 // in other mode, tms should be '0'
386 break; /* above stable states are OK */
388 LOG_ERROR( "jtag_add_clocks() was called with TAP in non-stable state \"%s\"",
389 tap_state_name(tap_get_state()) );
392 vsllink_stableclocks(cmd
->cmd
.stableclocks
->num_cycles
, scan_size
);
396 LOG_ERROR("BUG: unknown JTAG command type encountered: %d", cmd
->type
);
402 return vsllink_tap_execute();
405 static int vsllink_speed(int speed
)
409 vsllink_usb_out_buffer
[0] = VSLLINK_CMD_SET_SPEED
;
410 vsllink_usb_out_buffer
[1] = (speed
>> 0) & 0xff;
411 vsllink_usb_out_buffer
[2] = (speed
>> 8) & 0xFF;
413 result
= vsllink_usb_write(vsllink_jtag_handle
, 3);
421 LOG_ERROR("VSLLink setting speed failed (%d)", result
);
422 return ERROR_JTAG_DEVICE_ERROR
;
428 static int vsllink_khz(int khz
, int *jtag_speed
)
435 static int vsllink_speed_div(int jtag_speed
, int *khz
)
442 static int vsllink_init(void)
444 int check_cnt
, to_tmp
;
446 char version_str
[100];
448 vsllink_usb_in_buffer
= malloc(VSLLINK_BufferSize
);
449 vsllink_usb_out_buffer
= malloc(VSLLINK_BufferSize
);
450 if ((vsllink_usb_in_buffer
== NULL
) || (vsllink_usb_out_buffer
== NULL
))
452 LOG_ERROR("Not enough memory");
456 vsllink_jtag_handle
= vsllink_usb_open();
458 if (vsllink_jtag_handle
== 0)
460 LOG_ERROR("Can't find USB JTAG Interface! Please check connection and permissions.");
461 return ERROR_JTAG_INIT_FAILED
;
463 LOG_DEBUG("vsllink found on %04X:%04X", vsllink_usb_vid
, vsllink_usb_pid
);
465 to_tmp
= VSLLINK_USB_TIMEOUT
;
466 VSLLINK_USB_TIMEOUT
= 100;
468 while (check_cnt
< 5)
470 vsllink_simple_command(0x00);
471 result
= vsllink_usb_read(vsllink_jtag_handle
);
475 vsllink_usb_in_buffer
[result
] = 0;
476 VSLLINK_BufferSize
= vsllink_usb_in_buffer
[0] + (vsllink_usb_in_buffer
[1] << 8);
477 strncpy(version_str
, (char *)vsllink_usb_in_buffer
+ 2, sizeof(version_str
));
478 LOG_INFO("%s", version_str
);
480 // free the pre-alloc memroy
481 free(vsllink_usb_in_buffer
);
482 free(vsllink_usb_out_buffer
);
483 vsllink_usb_in_buffer
= NULL
;
484 vsllink_usb_out_buffer
= NULL
;
487 vsllink_usb_in_buffer
= malloc(VSLLINK_BufferSize
);
488 vsllink_usb_out_buffer
= malloc(VSLLINK_BufferSize
);
489 if ((vsllink_usb_in_buffer
== NULL
) || (vsllink_usb_out_buffer
== NULL
))
491 LOG_ERROR("Not enough memory");
496 LOG_INFO("buffer size for USB is %d bytes", VSLLINK_BufferSize
);
498 // alloc memory for dma mode
499 if (vsllink_mode
== VSLLINK_MODE_DMA
)
501 tap_buffer_size
= (VSLLINK_BufferSize
- 3) / 2;
502 tms_buffer
= (u8
*)malloc(tap_buffer_size
);
503 tdi_buffer
= (u8
*)malloc(tap_buffer_size
);
504 tdo_buffer
= (u8
*)malloc(tap_buffer_size
);
505 if ((tms_buffer
== NULL
) || (tdi_buffer
== NULL
) || (tdo_buffer
== NULL
))
507 LOG_ERROR("Not enough memory");
513 vsllink_simple_command(VSLLINK_CMD_DISCONN
);
518 // It's dangerout to proced
519 LOG_ERROR("VSLLink initial failed");
522 VSLLINK_USB_TIMEOUT
= to_tmp
;
524 // connect to vsllink
526 // initialize function pointers
527 if (vsllink_mode
== VSLLINK_MODE_NORMAL
)
530 vsllink_state_move
= vsllink_state_move_normal
;
531 vsllink_path_move
= vsllink_path_move_normal
;
532 vsllink_stableclocks
= vsllink_stableclocks_normal
;
533 vsllink_scan
= vsllink_scan_normal
;
535 vsllink_tap_init
= vsllink_tap_init_normal
;
536 vsllink_tap_execute
= vsllink_tap_execute_normal
;
537 vsllink_tap_ensure_space
= vsllink_tap_ensure_space_normal
;
539 LOG_INFO("vsllink run in NORMAL mode");
544 vsllink_state_move
= vsllink_state_move_dma
;
545 vsllink_path_move
= vsllink_path_move_dma
;
546 vsllink_stableclocks
= vsllink_stableclocks_dma
;
547 vsllink_scan
= vsllink_scan_dma
;
549 vsllink_tap_init
= vsllink_tap_init_dma
;
550 vsllink_tap_execute
= vsllink_tap_execute_dma
;
551 vsllink_tap_ensure_space
= vsllink_tap_ensure_space_dma
;
553 LOG_INFO("vsllink run in DMA mode");
556 // Set SRST and TRST to output, Set USR1 and USR2 to input
557 vsllink_usb_out_buffer
[0] = VSLLINK_CMD_SET_PORTDIR
;
558 vsllink_usb_out_buffer
[1] = JTAG_PINMSK_SRST
| JTAG_PINMSK_TRST
| JTAG_PINMSK_USR1
| JTAG_PINMSK_USR2
;
559 vsllink_usb_out_buffer
[2] = JTAG_PINMSK_SRST
| JTAG_PINMSK_TRST
;
560 if (vsllink_usb_write(vsllink_jtag_handle
, 3) != 3)
562 LOG_ERROR("VSLLink USB send data error");
568 LOG_INFO("VSLLink JTAG Interface ready");
575 static int vsllink_quit(void)
577 if ((vsllink_usb_in_buffer
!= NULL
) && (vsllink_usb_out_buffer
!= NULL
))
579 // Set all pins to input
580 vsllink_usb_out_buffer
[0] = VSLLINK_CMD_SET_PORTDIR
;
581 vsllink_usb_out_buffer
[1] = JTAG_PINMSK_SRST
| JTAG_PINMSK_TRST
| JTAG_PINMSK_USR1
| JTAG_PINMSK_USR2
;
582 vsllink_usb_out_buffer
[2] = 0;
583 if (vsllink_usb_write(vsllink_jtag_handle
, 3) != 3)
585 LOG_ERROR("VSLLink USB send data error");
590 vsllink_disconnect();
591 vsllink_usb_close(vsllink_jtag_handle
);
592 vsllink_jtag_handle
= NULL
;
595 if (vsllink_usb_in_buffer
!= NULL
)
597 free(vsllink_usb_in_buffer
);
598 vsllink_usb_in_buffer
= NULL
;
600 if (vsllink_usb_out_buffer
!= NULL
)
602 free(vsllink_usb_out_buffer
);
603 vsllink_usb_out_buffer
= NULL
;
609 /***************************************************************************/
610 /* Queue command implementations */
611 static int vsllink_disconnect(void)
613 vsllink_simple_command(VSLLINK_CMD_DISCONN
);
617 static int vsllink_connect(void)
619 char vsllink_str
[100];
621 vsllink_usb_out_buffer
[0] = VSLLINK_CMD_CONN
;
622 vsllink_usb_out_buffer
[1] = vsllink_mode
;
623 vsllink_usb_message(vsllink_jtag_handle
, 2, 0);
624 if (vsllink_usb_read(vsllink_jtag_handle
) > 2)
626 strncpy(vsllink_str
, (char *)vsllink_usb_in_buffer
+ 2, sizeof(vsllink_str
));
627 LOG_INFO("%s", vsllink_str
);
633 // when vsllink_tms_data_len > 0, vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] is the byte that need to be appended.
634 // length of VSLLINK_CMDJTAGSEQ_TMSBYTE has been set, no need to set it here.
635 static void vsllink_append_tms(void)
637 u8 tms_scan
= VSLLINK_TAP_MOVE(tap_get_state(), tap_get_end_state());
639 insert_insignificant_operation_t
*insert
= \
640 &VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT
[tap_move_ndx(tap_get_state())][tap_move_ndx(tap_get_end_state())];
642 if (((tap_get_state() != TAP_RESET
) && (tap_get_state() != TAP_IDLE
) && (tap_get_state() != TAP_DRPAUSE
) && (tap_get_state() != TAP_IRPAUSE
)) || \
643 (vsllink_tms_data_len
<= 0) || (vsllink_tms_data_len
>= 8) || \
644 (vsllink_tms_cmd_pos
== NULL
))
646 LOG_ERROR("There MUST be some bugs in the driver");
650 tms2
= (tms_scan
& VSLLINK_BIT_MSK
[insert
->insert_position
]) << \
651 vsllink_tms_data_len
;
652 if (insert
->insert_value
== 1)
654 tms2
|= VSLLINK_BIT_MSK
[8 - vsllink_tms_data_len
] << \
655 (vsllink_tms_data_len
+ insert
->insert_position
);
657 tms2
|= (tms_scan
>> insert
->insert_position
) << \
658 (8 + insert
->insert_position
);
660 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] |= (tms2
>> 0) & 0xff;
661 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = (tms2
>> 8) & 0xff;
663 vsllink_tms_data_len
= 0;
664 vsllink_tms_cmd_pos
= NULL
;
667 static void vsllink_end_state(tap_state_t state
)
669 if (tap_is_state_stable(state
))
671 tap_set_end_state(state
);
675 LOG_ERROR("BUG: %i is not a valid end state", state
);
680 /* Goes to the end state. */
681 static void vsllink_state_move_normal(void)
683 if (vsllink_tms_data_len
> 0)
685 vsllink_append_tms();
689 vsllink_tap_ensure_space(0, 2);
691 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = VSLLINK_CMDJTAGSEQ_TMSBYTE
;
692 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = VSLLINK_TAP_MOVE(tap_get_state(), tap_get_end_state());
695 tap_set_state(tap_get_end_state());
697 static void vsllink_state_move_dma(void)
699 int i
, insert_length
= (tap_length
% 8) ? (8 - (tap_length
% 8)) : 0;
700 insert_insignificant_operation_t
*insert
= \
701 &VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT
[tap_move_ndx(tap_get_state())][tap_move_ndx(tap_get_end_state())];
702 u8 tms_scan
= VSLLINK_TAP_MOVE(tap_get_state(), tap_get_end_state());
704 if (tap_get_state() == TAP_RESET
)
706 vsllink_tap_ensure_space(0, 8);
708 for (i
= 0; i
< 8; i
++)
710 vsllink_tap_append_step(1, 0);
714 if (insert_length
> 0)
716 vsllink_tap_ensure_space(0, 16);
718 for (i
= 0; i
< insert
->insert_position
; i
++)
720 vsllink_tap_append_step((tms_scan
>> i
) & 1, 0);
722 for (i
= 0; i
< insert_length
; i
++)
724 vsllink_tap_append_step(insert
->insert_value
, 0);
726 for (i
= insert
->insert_position
; i
< 8; i
++)
728 vsllink_tap_append_step((tms_scan
>> i
) & 1, 0);
733 vsllink_tap_ensure_space(0, 8);
735 for (i
= 0; i
< 8; i
++)
737 vsllink_tap_append_step((tms_scan
>> i
) & 1, 0);
741 tap_set_state(tap_get_end_state());
744 // write tms from current vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx]
745 static void vsllink_add_path(int start
, int num
, tap_state_t
*path
)
749 for (i
= start
; i
< (start
+ num
); i
++)
755 vsllink_usb_out_buffer_idx
++;
757 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
] = 0;
760 if (path
[i
- start
] == tap_state_transition(tap_get_state(), true))
762 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
] |= 1 << (i
& 7);
764 else if (path
[i
- start
] == tap_state_transition(tap_get_state(), false))
770 LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(tap_get_state()), tap_state_name(path
[i
]));
773 tap_set_state(path
[i
- start
]);
775 if ((i
> 0) && ((i
& 7) == 0))
777 vsllink_usb_out_buffer_idx
++;
778 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
] = 0;
781 tap_set_end_state(tap_get_state());
784 static void vsllink_path_move_normal(int num_states
, tap_state_t
*path
)
786 int i
, tms_len
, tms_cmd_pos
, path_idx
= 0;
788 if (vsllink_tms_data_len
> 0)
790 // there are vsllink_tms_data_len more tms bits to be shifted
791 // so there are vsllink_tms_data_len + num_states tms bits in all
792 tms_len
= vsllink_tms_data_len
+ num_states
;
795 // merge into last tms shift
798 // just append tms data to the last tms byte
799 vsllink_add_path(vsllink_tms_data_len
, num_states
, path
);
801 else if (tms_len
== 8)
803 // end last tms shift command
804 (*vsllink_tms_cmd_pos
)--;
805 vsllink_add_path(vsllink_tms_data_len
, num_states
, path
);
807 else if (tms_len
< 16)
809 if ((*vsllink_tms_cmd_pos
& VSLLINK_CMDJTAGSEQ_LENMSK
) < VSLLINK_CMDJTAGSEQ_LENMSK
)
811 // every tms shift command can contain VSLLINK_CMDJTAGSEQ_LENMSK + 1 bytes in most
812 // there is enought tms length in the current tms shift command
813 (*vsllink_tms_cmd_pos
)++;
814 vsllink_add_path(vsllink_tms_data_len
, num_states
, path
);
818 // every tms shift command can contain VSLLINK_CMDJTAGSEQ_LENMSK + 1 bytes in most
819 // not enough tms length in the current tms shift command
820 // so a new command should be added
821 // first decrease byte length of last tms shift command
822 (*vsllink_tms_cmd_pos
)--;
823 // append tms data to the last tms byte
824 vsllink_add_path(vsllink_tms_data_len
, 8 - vsllink_tms_data_len
, path
);
825 path
+= 8 - vsllink_tms_data_len
;
826 // add new command(3 bytes)
827 vsllink_tap_ensure_space(0, 3);
828 vsllink_tms_cmd_pos
= &vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
];
829 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = VSLLINK_CMDJTAGSEQ_TMSBYTE
| 1;
830 vsllink_add_path(0, num_states
- (8 - vsllink_tms_data_len
), path
);
833 else if (tms_len
== 16)
835 // end last tms shift command
836 vsllink_add_path(vsllink_tms_data_len
, num_states
, path
);
839 vsllink_tms_data_len
= (vsllink_tms_data_len
+ num_states
) & 7;
840 if (vsllink_tms_data_len
== 0)
842 vsllink_tms_cmd_pos
= NULL
;
848 vsllink_add_path(vsllink_tms_data_len
, 16 - vsllink_tms_data_len
, path
);
850 path
+= 16 - vsllink_tms_data_len
;
851 num_states
-= 16 - vsllink_tms_data_len
;
852 vsllink_tms_data_len
= 0;
853 vsllink_tms_cmd_pos
= NULL
;
859 // Normal operation, don't need to append tms data
860 vsllink_tms_data_len
= num_states
& 7;
862 while (num_states
> 0)
864 if (num_states
> ((VSLLINK_CMDJTAGSEQ_LENMSK
+ 1) * 8))
866 i
= (VSLLINK_CMDJTAGSEQ_LENMSK
+ 1) * 8;
872 tms_len
= (i
+ 7) >> 3;
873 vsllink_tap_ensure_space(0, tms_len
+ 2);
874 tms_cmd_pos
= vsllink_usb_out_buffer_idx
;
875 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = VSLLINK_CMDJTAGSEQ_TMSBYTE
| (tms_len
- 1);
877 vsllink_add_path(0, i
, path
+ path_idx
);
883 if (vsllink_tms_data_len
> 0)
885 if (tms_len
< (VSLLINK_CMDJTAGSEQ_LENMSK
+ 1))
887 vsllink_tms_cmd_pos
= &vsllink_usb_out_buffer
[tms_cmd_pos
];
888 (*vsllink_tms_cmd_pos
)++;
892 vsllink_usb_out_buffer
[tms_cmd_pos
]--;
894 tms_len
= vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
];
895 vsllink_tap_ensure_space(0, 3);
896 vsllink_tms_cmd_pos
= &vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
];
897 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = VSLLINK_CMDJTAGSEQ_TMSBYTE
| 1;
898 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
] = tms_len
;
903 static void vsllink_path_move_dma(int num_states
, tap_state_t
*path
)
909 if ((8 - (tap_length
& 7)) < num_states
)
911 j
= 8 - (tap_length
& 7);
917 for (i
= 0; i
< j
; i
++)
919 if (path
[i
] == tap_state_transition(tap_get_state(), false))
921 vsllink_tap_append_step(0, 0);
923 else if (path
[i
] == tap_state_transition(tap_get_state(), true))
925 vsllink_tap_append_step(1, 0);
929 LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(tap_get_state()), tap_state_name(path
[i
]));
932 tap_set_state(path
[i
]);
939 vsllink_tap_ensure_space(0, num_states
);
941 for (i
= 0; i
< num_states
; i
++)
943 if (path
[j
+ i
] == tap_state_transition(tap_get_state(), false))
945 vsllink_tap_append_step(0, 0);
947 else if (path
[j
+ i
] == tap_state_transition(tap_get_state(), true))
949 vsllink_tap_append_step(1, 0);
953 LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(tap_get_state()), tap_state_name(path
[i
]));
956 tap_set_state(path
[j
+ i
]);
960 tap_set_end_state(tap_get_state());
963 static void vsllink_stableclocks_normal(int num_cycles
, int tms
)
968 if (vsllink_tms_data_len
> 0)
970 // there are vsllink_tms_data_len more tms bits to be shifted
971 // so there are vsllink_tms_data_len + num_cycles tms bits in all
972 tms_len
= vsllink_tms_data_len
+ num_cycles
;
975 // append '1' for tms
976 tms_append_byte
= (u16
)((((1 << num_cycles
) - 1) << vsllink_tms_data_len
) & 0xFFFF);
980 // append '0' for tms
985 // merge into last tms shift
988 // just add to vsllink_tms_data_len
989 // same result if tun through
990 //vsllink_tms_data_len += num_cycles;
991 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
] |= (u8
)(tms_append_byte
& 0xFF);
993 else if (tms_len
== 8)
995 // end last tms shift command
996 // just reduce it, and append last tms byte
997 (*vsllink_tms_cmd_pos
)--;
998 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] |= (u8
)(tms_append_byte
& 0xFF);
1000 else if (tms_len
< 16)
1002 if ((*vsllink_tms_cmd_pos
& VSLLINK_CMDJTAGSEQ_LENMSK
) < VSLLINK_CMDJTAGSEQ_LENMSK
)
1004 // every tms shift command can contain VSLLINK_CMDJTAGSEQ_LENMSK + 1 bytes in most
1005 // there is enought tms length in the current tms shift command
1006 // increase the tms byte length by 1 and set the last byte to 0
1007 (*vsllink_tms_cmd_pos
)++;
1008 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] |= (u8
)(tms_append_byte
& 0xFF);
1009 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
] = (u8
)(tms_append_byte
>> 8);
1013 // every tms shift command can contain VSLLINK_CMDJTAGSEQ_LENMSK + 1 bytes in most
1014 // not enough tms length in the current tms shift command
1015 // so a new command should be added
1016 // first decrease byte length of last tms shift command
1017 (*vsllink_tms_cmd_pos
)--;
1018 // append last tms byte and move the command pointer to the next empty position
1019 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] |= (u8
)(tms_append_byte
& 0xFF);
1020 // add new command(3 bytes)
1021 vsllink_tap_ensure_space(0, 3);
1022 vsllink_tms_cmd_pos
= &vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
];
1023 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = VSLLINK_CMDJTAGSEQ_TMSBYTE
| 1;
1024 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
] = (u8
)(tms_append_byte
>> 8);
1027 else if (tms_len
== 16)
1029 // end last tms shift command
1030 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] |= (u8
)(tms_append_byte
& 0xFF);
1031 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = (u8
)(tms_append_byte
>> 8);
1034 vsllink_tms_data_len
= tms_len
& 7;
1035 if (vsllink_tms_data_len
== 0)
1037 vsllink_tms_cmd_pos
= NULL
;
1043 // more shifts will be needed
1044 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] |= (u8
)(tms_append_byte
& 0xFF);
1045 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = (u8
)(tms_append_byte
>> 8);
1047 num_cycles
-= 16 - vsllink_tms_data_len
;
1048 vsllink_tms_data_len
= 0;
1049 vsllink_tms_cmd_pos
= NULL
;
1052 // from here vsllink_tms_data_len == 0 or num_cycles == 0
1054 if (vsllink_tms_data_len
> 0)
1060 LOG_ERROR("There MUST be some bugs in the driver");
1066 // get number of bytes left to be sent
1067 tms_len
= num_cycles
>> 3;
1070 vsllink_tap_ensure_space(1, 5);
1071 // if tms_len > 0, vsllink_tms_data_len == 0
1072 // so just add new command
1073 // LSB of the command byte is the tms value when do the shifting
1076 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = VSLLINK_CMDJTAGSEQ_TMSCLOCK
| 1;
1080 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = VSLLINK_CMDJTAGSEQ_TMSCLOCK
;
1082 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = (tms_len
>> 0) & 0xff;
1083 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = (tms_len
>> 8) & 0xff;
1084 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = (tms_len
>> 16) & 0xff;
1085 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = (tms_len
>> 24) & 0xff;
1087 vsllink_usb_in_want_length
+= 1;
1088 pending_scan_results_buffer
[pending_scan_results_length
].buffer
= NULL
;
1089 pending_scan_results_length
++;
1091 if (tms_len
> 0xFFFF)
1093 vsllink_tap_execute();
1098 vsllink_tms_data_len
= num_cycles
& 7;
1099 if (vsllink_tms_data_len
> 0)
1101 vsllink_tap_ensure_space(0, 3);
1102 vsllink_tms_cmd_pos
= &vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
];
1103 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = VSLLINK_CMDJTAGSEQ_TMSBYTE
| 1;
1106 // append '1' for tms
1107 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
] = (1 << vsllink_tms_data_len
) - 1;
1111 // append '0' for tms
1112 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
] = 0x00;
1117 static void vsllink_stableclocks_dma(int num_cycles
, int tms
)
1123 if ((8 - (tap_length
& 7)) < num_cycles
)
1125 cur_cycles
= 8 - (tap_length
& 7);
1129 cur_cycles
= num_cycles
;
1131 for (i
= 0; i
< cur_cycles
; i
++)
1133 vsllink_tap_append_step(tms
, 0);
1135 num_cycles
-= cur_cycles
;
1138 while (num_cycles
> 0)
1140 if (num_cycles
> 8 * tap_buffer_size
)
1142 cur_cycles
= 8 * tap_buffer_size
;
1146 cur_cycles
= num_cycles
;
1149 vsllink_tap_ensure_space(0, cur_cycles
);
1151 for (i
= 0; i
< cur_cycles
; i
++)
1153 vsllink_tap_append_step(tms
, 0);
1156 num_cycles
-= cur_cycles
;
1160 static void vsllink_runtest(int num_cycles
)
1162 tap_state_t saved_end_state
= tap_get_end_state();
1164 if (tap_get_state() != TAP_IDLE
)
1166 // enter into IDLE state
1167 vsllink_end_state(TAP_IDLE
);
1168 vsllink_state_move();
1171 vsllink_stableclocks(num_cycles
, 0);
1175 vsllink_end_state(saved_end_state
);
1176 tap_set_state(TAP_IDLE
);
1177 if (tap_get_end_state() != TAP_IDLE
)
1179 vsllink_state_move();
1183 static void vsllink_scan_normal(bool ir_scan
, enum scan_type type
, u8
*buffer
, int scan_size
, scan_command_t
*command
)
1185 tap_state_t saved_end_state
;
1186 u8 bits_left
, tms_tmp
, tdi_len
;
1189 if (0 == scan_size
)
1194 tdi_len
= ((scan_size
+ 7) >> 3);
1195 if ((tdi_len
+ 7) > VSLLINK_BufferSize
)
1197 LOG_ERROR("Your implementation of VSLLink has not enough buffer");
1201 saved_end_state
= tap_get_end_state();
1203 /* Move to appropriate scan state */
1204 vsllink_end_state(ir_scan
? TAP_IRSHIFT
: TAP_DRSHIFT
);
1206 if (vsllink_tms_data_len
> 0)
1208 if (tap_get_state() == tap_get_end_state())
1210 // already in IRSHIFT or DRSHIFT state
1211 // merge tms data in the last tms shift command into next scan command
1212 if(*vsllink_tms_cmd_pos
< 1)
1214 LOG_ERROR("There MUST be some bugs in the driver");
1217 else if(*vsllink_tms_cmd_pos
< 2)
1219 tms_tmp
= vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
];
1220 vsllink_usb_out_buffer_idx
--;
1224 tms_tmp
= vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
];
1225 *vsllink_tms_cmd_pos
-= 2;
1228 vsllink_tap_ensure_space(1, tdi_len
+ 7);
1229 // VSLLINK_CMDJTAGSEQ_SCAN ored by 1 means that tms_before is valid
1230 // which is merged from the last tms shift command
1231 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = VSLLINK_CMDJTAGSEQ_SCAN
| 1;
1232 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = ((tdi_len
+ 1) >> 0) & 0xff;
1233 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = ((tdi_len
+ 1) >> 8) & 0xff;
1234 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = tms_tmp
;
1235 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = buffer
[0] << (8 - vsllink_tms_data_len
);
1237 for (i
= 0; i
< tdi_len
; i
++)
1239 buffer
[i
] >>= 8 - vsllink_tms_data_len
;
1242 buffer
[i
] += buffer
[i
+ 1] << vsllink_tms_data_len
;
1246 vsllink_tap_append_scan_normal(scan_size
- vsllink_tms_data_len
, buffer
, command
, vsllink_tms_data_len
);
1247 scan_size
-= 8 - vsllink_tms_data_len
;
1248 vsllink_tms_data_len
= 0;
1252 vsllink_state_move();
1253 vsllink_tap_ensure_space(1, tdi_len
+ 5);
1255 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = VSLLINK_CMDJTAGSEQ_SCAN
;
1256 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = (tdi_len
>> 0) & 0xff;
1257 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = (tdi_len
>> 8) & 0xff;
1259 vsllink_tap_append_scan_normal(scan_size
, buffer
, command
, 0);
1264 vsllink_tap_ensure_space(1, tdi_len
+ 7);
1266 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = VSLLINK_CMDJTAGSEQ_SCAN
| 1;
1267 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = ((tdi_len
+ 1) >> 0) & 0xff;
1268 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = ((tdi_len
+ 1)>> 8) & 0xff;
1269 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = VSLLINK_TAP_MOVE(tap_get_state(), tap_get_end_state());
1270 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = 0;
1272 vsllink_tap_append_scan_normal(scan_size
, buffer
, command
, 8);
1274 vsllink_end_state(saved_end_state
);
1276 bits_left
= scan_size
& 0x07;
1277 tap_set_state(ir_scan
? TAP_IRPAUSE
: TAP_DRPAUSE
);
1281 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = 1 << (bits_left
- 1);
1285 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = 1 << 7;
1288 if (tap_get_state() != tap_get_end_state())
1290 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = VSLLINK_TAP_MOVE(tap_get_state(), tap_get_end_state());
1294 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = 0;
1297 tap_set_state(tap_get_end_state());
1299 static void vsllink_scan_dma(bool ir_scan
, enum scan_type type
, u8
*buffer
, int scan_size
, scan_command_t
*command
)
1301 tap_state_t saved_end_state
;
1303 saved_end_state
= tap_get_end_state();
1305 /* Move to appropriate scan state */
1306 vsllink_end_state(ir_scan
? TAP_IRSHIFT
: TAP_DRSHIFT
);
1308 vsllink_state_move();
1309 vsllink_end_state(saved_end_state
);
1312 vsllink_tap_append_scan_dma(scan_size
, buffer
, command
);
1314 tap_set_state(ir_scan
? TAP_IRPAUSE
: TAP_DRPAUSE
);
1315 while (tap_length
% 8 != 0)
1318 vsllink_tap_append_step(0, 0);
1321 if (tap_get_state() != tap_get_end_state())
1323 vsllink_state_move();
1327 static void vsllink_reset(int trst
, int srst
)
1331 LOG_DEBUG("trst: %i, srst: %i", trst
, srst
);
1333 /* Signals are active low */
1334 vsllink_usb_out_buffer
[0] = VSLLINK_CMD_SET_PORT
;
1335 vsllink_usb_out_buffer
[1] = JTAG_PINMSK_SRST
| JTAG_PINMSK_TRST
;
1336 vsllink_usb_out_buffer
[2] = 0;
1339 vsllink_usb_out_buffer
[2] |= JTAG_PINMSK_SRST
;
1343 vsllink_usb_out_buffer
[2] |= JTAG_PINMSK_TRST
;
1346 result
= vsllink_usb_write(vsllink_jtag_handle
, 3);
1349 LOG_ERROR("VSLLink command VSLLINK_CMD_SET_PORT failed (%d)", result
);
1353 static void vsllink_simple_command(u8 command
)
1357 DEBUG_JTAG_IO("0x%02x", command
);
1359 vsllink_usb_out_buffer
[0] = command
;
1360 result
= vsllink_usb_write(vsllink_jtag_handle
, 1);
1364 LOG_ERROR("VSLLink command 0x%02x failed (%d)", command
, result
);
1368 static int vsllink_register_commands(struct command_context_s
*cmd_ctx
)
1370 register_command(cmd_ctx
, NULL
, "vsllink_usb_vid", vsllink_handle_usb_vid_command
,
1371 COMMAND_CONFIG
, NULL
);
1372 register_command(cmd_ctx
, NULL
, "vsllink_usb_pid", vsllink_handle_usb_pid_command
,
1373 COMMAND_CONFIG
, NULL
);
1374 register_command(cmd_ctx
, NULL
, "vsllink_usb_bulkin", vsllink_handle_usb_bulkin_command
,
1375 COMMAND_CONFIG
, NULL
);
1376 register_command(cmd_ctx
, NULL
, "vsllink_usb_bulkout", vsllink_handle_usb_bulkout_command
,
1377 COMMAND_CONFIG
, NULL
);
1378 register_command(cmd_ctx
, NULL
, "vsllink_usb_interface", vsllink_handle_usb_interface_command
,
1379 COMMAND_CONFIG
, NULL
);
1380 register_command(cmd_ctx
, NULL
, "vsllink_mode", vsllink_handle_mode_command
,
1381 COMMAND_CONFIG
, NULL
);
1386 static int vsllink_handle_mode_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1389 LOG_ERROR("parameter error, should be one parameter for VID");
1393 if (!strcmp(args
[0], "normal"))
1395 vsllink_mode
= VSLLINK_MODE_NORMAL
;
1397 else if (!strcmp(args
[0], "dma"))
1399 vsllink_mode
= VSLLINK_MODE_DMA
;
1403 LOG_ERROR("invalid vsllink_mode: %s", args
[0]);
1410 static int vsllink_handle_usb_vid_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1414 LOG_ERROR("parameter error, should be one parameter for VID");
1418 vsllink_usb_vid
= strtol(args
[0], NULL
, 0);
1423 static int vsllink_handle_usb_pid_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1427 LOG_ERROR("parameter error, should be one parameter for PID");
1431 vsllink_usb_pid
= strtol(args
[0], NULL
, 0);
1436 static int vsllink_handle_usb_bulkin_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1440 LOG_ERROR("parameter error, should be one parameter for BULKIN endpoint");
1444 vsllink_usb_bulkin
= strtol(args
[0], NULL
, 0) | 0x80;
1449 static int vsllink_handle_usb_bulkout_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1453 LOG_ERROR("parameter error, should be one parameter for BULKOUT endpoint");
1457 vsllink_usb_bulkout
= strtol(args
[0], NULL
, 0);
1462 static int vsllink_handle_usb_interface_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1466 LOG_ERROR("parameter error, should be one parameter for interface number");
1470 vsllink_usb_interface
= strtol(args
[0], NULL
, 0);
1475 /***************************************************************************/
1476 /* VSLLink tap functions */
1478 static void vsllink_tap_init_normal(void)
1480 vsllink_usb_out_buffer_idx
= 0;
1481 vsllink_usb_in_want_length
= 0;
1482 pending_scan_results_length
= 0;
1484 static void vsllink_tap_init_dma(void)
1487 pending_scan_results_length
= 0;
1490 static void vsllink_tap_ensure_space_normal(int scans
, int length
)
1492 int available_scans
= MAX_PENDING_SCAN_RESULTS
- pending_scan_results_length
;
1493 int available_bytes
= VSLLINK_BufferSize
- vsllink_usb_out_buffer_idx
;
1495 if (scans
> available_scans
|| length
> available_bytes
)
1497 vsllink_tap_execute();
1500 static void vsllink_tap_ensure_space_dma(int scans
, int length
)
1502 int available_scans
= MAX_PENDING_SCAN_RESULTS
- pending_scan_results_length
;
1503 int available_bytes
= tap_buffer_size
* 8 - tap_length
;
1505 if (scans
> available_scans
|| length
> available_bytes
)
1507 vsllink_tap_execute();
1511 static void vsllink_tap_append_step(int tms
, int tdi
)
1514 int index
= tap_length
/ 8;
1516 if (index
< tap_buffer_size
)
1518 int bit_index
= tap_length
% 8;
1519 u8 bit
= 1 << bit_index
;
1523 tms_buffer
[index
] |= bit
;
1527 tms_buffer
[index
] &= ~bit
;
1532 tdi_buffer
[index
] |= bit
;
1536 tdi_buffer
[index
] &= ~bit
;
1543 LOG_ERROR("buffer overflow, tap_length=%d", tap_length
);
1547 static void vsllink_tap_append_scan_normal(int length
, u8
*buffer
, scan_command_t
*command
, int offset
)
1549 pending_scan_result_t
*pending_scan_result
= &pending_scan_results_buffer
[pending_scan_results_length
];
1554 vsllink_usb_in_want_length
+= ((length
+ 7) >> 3) + 1;
1558 vsllink_usb_in_want_length
+= (length
+ 7) >> 3;
1560 pending_scan_result
->length
= length
;
1561 pending_scan_result
->offset
= offset
;
1562 pending_scan_result
->command
= command
;
1563 pending_scan_result
->buffer
= buffer
;
1565 for (i
= 0; i
< ((length
+ 7) >> 3); i
++)
1567 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = buffer
[i
];
1570 pending_scan_results_length
++;
1572 static void vsllink_tap_append_scan_dma(int length
, u8
*buffer
, scan_command_t
*command
)
1574 pending_scan_result_t
*pending_scan_result
;
1575 int len_tmp
, len_all
, i
;
1578 while (len_all
< length
)
1580 if ((length
- len_all
) > tap_buffer_size
* 8)
1582 len_tmp
= tap_buffer_size
* 8;
1586 len_tmp
= length
- len_all
;
1589 vsllink_tap_ensure_space(1, (len_tmp
+ 7) & ~7);
1591 pending_scan_result
= &pending_scan_results_buffer
[pending_scan_results_length
];
1592 pending_scan_result
->offset
= tap_length
;
1593 pending_scan_result
->length
= len_tmp
;
1594 pending_scan_result
->command
= command
;
1595 pending_scan_result
->buffer
= buffer
+ len_all
/ 8;
1597 for (i
= 0; i
< len_tmp
; i
++)
1599 vsllink_tap_append_step(((len_all
+i
) < length
-1 ? 0 : 1), (buffer
[(len_all
+i
)/8] >> ((len_all
+i
)%8)) & 1);
1602 pending_scan_results_length
++;
1607 /* Pad and send a tap sequence to the device, and receive the answer.
1608 * For the purpose of padding we assume that we are in reset or idle or pause state. */
1609 static int vsllink_tap_execute_normal(void)
1615 if (vsllink_tms_data_len
> 0)
1617 if((tap_get_state() != TAP_RESET
) && (tap_get_state() != TAP_IDLE
) && (tap_get_state() != TAP_IRPAUSE
) && (tap_get_state() != TAP_DRPAUSE
))
1619 LOG_WARNING("%s is not in RESET or IDLE or PAUSR state", tap_state_name(tap_get_state()));
1622 if (vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
] & (1 << (vsllink_tms_data_len
- 1)))
1624 // last tms bit is '1'
1625 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] |= 0xFF << vsllink_tms_data_len
;
1626 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = 0xFF;
1627 vsllink_tms_data_len
= 0;
1631 // last tms bit is '0'
1632 vsllink_usb_out_buffer_idx
++;
1633 vsllink_usb_out_buffer
[vsllink_usb_out_buffer_idx
++] = 0;
1634 vsllink_tms_data_len
= 0;
1638 if (vsllink_usb_out_buffer_idx
> 3)
1640 if (vsllink_usb_out_buffer
[0] == VSLLINK_CMD_HW_JTAGSEQCMD
)
1642 vsllink_usb_out_buffer
[1] = (vsllink_usb_out_buffer_idx
>> 0) & 0xff;
1643 vsllink_usb_out_buffer
[2] = (vsllink_usb_out_buffer_idx
>> 8) & 0xff;
1646 result
= vsllink_usb_message(vsllink_jtag_handle
, vsllink_usb_out_buffer_idx
, vsllink_usb_in_want_length
);
1648 if (result
== vsllink_usb_in_want_length
)
1650 for (i
= 0; i
< pending_scan_results_length
; i
++)
1652 pending_scan_result_t
*pending_scan_result
= &pending_scan_results_buffer
[i
];
1653 u8
*buffer
= pending_scan_result
->buffer
;
1654 int length
= pending_scan_result
->length
;
1655 int offset
= pending_scan_result
->offset
;
1656 scan_command_t
*command
= pending_scan_result
->command
;
1660 // IRSHIFT or DRSHIFT
1661 buf_set_buf(vsllink_usb_in_buffer
, first
* 8 + offset
, buffer
, 0, length
);
1662 first
+= (length
+ offset
+ 7) >> 3;
1664 DEBUG_JTAG_IO("JTAG scan read(%d bits):", length
);
1665 #ifdef _DEBUG_JTAG_IO_
1666 vsllink_debug_buffer(buffer
, (length
+ 7) >> 3);
1669 if (jtag_read_buffer(buffer
, command
) != ERROR_OK
)
1672 return ERROR_JTAG_QUEUE_FAILED
;
1675 free(pending_scan_result
->buffer
);
1676 pending_scan_result
->buffer
= NULL
;
1686 LOG_ERROR("vsllink_tap_execute, wrong result %d, expected %d", result
, vsllink_usb_in_want_length
);
1687 return ERROR_JTAG_QUEUE_FAILED
;
1692 reset_command_pointer();
1696 static int vsllink_tap_execute_dma(void)
1704 /* Pad last byte so that tap_length is divisible by 8 */
1705 while (tap_length
% 8 != 0)
1707 /* More of the last TMS value keeps us in the same state,
1708 * analogous to free-running JTAG interfaces. */
1709 vsllink_tap_append_step(last_tms
, 0);
1711 byte_length
= tap_length
/ 8;
1713 vsllink_usb_out_buffer
[0] = VSLLINK_CMD_HW_JTAGRAWCMD
;
1714 vsllink_usb_out_buffer
[1] = ((byte_length
* 2 + 3) >> 0) & 0xff; // package size
1715 vsllink_usb_out_buffer
[2] = ((byte_length
* 2 + 3) >> 8) & 0xff;
1717 memcpy(&vsllink_usb_out_buffer
[3], tdi_buffer
, byte_length
);
1718 memcpy(&vsllink_usb_out_buffer
[3 + byte_length
], tms_buffer
, byte_length
);
1720 result
= vsllink_usb_message(vsllink_jtag_handle
, 3 + 2 * byte_length
, byte_length
);
1721 if (result
== byte_length
)
1723 for (i
= 0; i
< pending_scan_results_length
; i
++)
1725 pending_scan_result_t
*pending_scan_result
= &pending_scan_results_buffer
[i
];
1726 u8
*buffer
= pending_scan_result
->buffer
;
1727 int length
= pending_scan_result
->length
;
1728 int first
= pending_scan_result
->offset
;
1730 scan_command_t
*command
= pending_scan_result
->command
;
1731 buf_set_buf(vsllink_usb_in_buffer
, first
, buffer
, 0, length
);
1733 DEBUG_JTAG_IO("JTAG scan read(%d bits, from %d bits):", length
, first
);
1734 #ifdef _DEBUG_JTAG_IO_
1735 vsllink_debug_buffer(buffer
, (length
+ 7) >> 3);
1738 if (jtag_read_buffer(buffer
, command
) != ERROR_OK
)
1741 return ERROR_JTAG_QUEUE_FAILED
;
1744 if (pending_scan_result
->buffer
!= NULL
)
1746 free(pending_scan_result
->buffer
);
1752 LOG_ERROR("vsllink_tap_execute, wrong result %d, expected %d", result
, byte_length
);
1753 return ERROR_JTAG_QUEUE_FAILED
;
1762 /*****************************************************************************/
1763 /* VSLLink USB low-level functions */
1765 static vsllink_jtag_t
* vsllink_usb_open(void)
1767 struct usb_bus
*busses
;
1768 struct usb_bus
*bus
;
1769 struct usb_device
*dev
;
1772 vsllink_jtag_t
*result
;
1774 result
= (vsllink_jtag_t
*) malloc(sizeof(vsllink_jtag_t
));
1780 busses
= usb_get_busses();
1782 /* find vsllink_jtag device in usb bus */
1784 for (bus
= busses
; bus
; bus
= bus
->next
)
1786 for (dev
= bus
->devices
; dev
; dev
= dev
->next
)
1788 if ((dev
->descriptor
.idVendor
== vsllink_usb_vid
) && (dev
->descriptor
.idProduct
== vsllink_usb_pid
))
1790 result
->usb_handle
= usb_open(dev
);
1791 if (NULL
== result
->usb_handle
)
1793 LOG_ERROR("failed to open %04X:%04X, not enough permissions?", vsllink_usb_vid
, vsllink_usb_pid
);
1797 /* usb_set_configuration required under win32 */
1798 ret
= usb_set_configuration(result
->usb_handle
, dev
->config
[0].bConfigurationValue
);
1801 LOG_ERROR("fail to set configuration to %d, %d returned, not enough permissions?", dev
->config
[0].bConfigurationValue
, ret
);
1804 ret
= usb_claim_interface(result
->usb_handle
, vsllink_usb_interface
);
1807 LOG_ERROR("fail to claim interface %d, %d returned", vsllink_usb_interface
, ret
);
1813 * This makes problems under Mac OS X. And is not needed
1814 * under Windows. Hopefully this will not break a linux build
1816 usb_set_altinterface(result
->usb_handle
, 0);
1827 static void vsllink_usb_close(vsllink_jtag_t
*vsllink_jtag
)
1831 ret
= usb_release_interface(vsllink_jtag
->usb_handle
, vsllink_usb_interface
);
1834 LOG_ERROR("fail to release interface %d, %d returned", vsllink_usb_interface
, ret
);
1838 ret
= usb_close(vsllink_jtag
->usb_handle
);
1841 LOG_ERROR("fail to close usb, %d returned", ret
);
1848 /* Send a message and receive the reply. */
1849 static int vsllink_usb_message(vsllink_jtag_t
*vsllink_jtag
, int out_length
, int in_length
)
1853 result
= vsllink_usb_write(vsllink_jtag
, out_length
);
1854 if (result
== out_length
)
1858 result
= vsllink_usb_read(vsllink_jtag
);
1859 if (result
== in_length
)
1865 LOG_ERROR("usb_bulk_read failed (requested=%d, result=%d)", in_length
, result
);
1873 LOG_ERROR("usb_bulk_write failed (requested=%d, result=%d)", out_length
, result
);
1878 /* Write data from out_buffer to USB. */
1879 static int vsllink_usb_write(vsllink_jtag_t
*vsllink_jtag
, int out_length
)
1883 if (out_length
> VSLLINK_BufferSize
)
1885 LOG_ERROR("vsllink_jtag_write illegal out_length=%d (max=%d)", out_length
, VSLLINK_BufferSize
);
1889 result
= usb_bulk_write(vsllink_jtag
->usb_handle
, vsllink_usb_bulkout
, \
1890 (char *)vsllink_usb_out_buffer
, out_length
, VSLLINK_USB_TIMEOUT
);
1892 DEBUG_JTAG_IO("vsllink_usb_write, out_length = %d, result = %d", out_length
, result
);
1894 #ifdef _DEBUG_USB_COMMS_
1895 LOG_DEBUG("USB out:");
1896 vsllink_debug_buffer(vsllink_usb_out_buffer
, out_length
);
1899 #ifdef _VSLLINK_IN_DEBUG_MODE_
1906 /* Read data from USB into in_buffer. */
1907 static int vsllink_usb_read(vsllink_jtag_t
*vsllink_jtag
)
1909 int result
= usb_bulk_read(vsllink_jtag
->usb_handle
, vsllink_usb_bulkin
, \
1910 (char *)vsllink_usb_in_buffer
, VSLLINK_BufferSize
, VSLLINK_USB_TIMEOUT
);
1912 DEBUG_JTAG_IO("vsllink_usb_read, result = %d", result
);
1914 #ifdef _DEBUG_USB_COMMS_
1915 LOG_DEBUG("USB in:");
1916 vsllink_debug_buffer(vsllink_usb_in_buffer
, result
);
1921 #define BYTES_PER_LINE 16
1923 #if defined _DEBUG_USB_COMMS_ || defined _DEBUG_JTAG_IO_
1924 static void vsllink_debug_buffer(u8
*buffer
, int length
)
1931 for (i
= 0; i
< length
; i
+= BYTES_PER_LINE
)
1933 snprintf(line
, 5, "%04x", i
);
1934 for (j
= i
; j
< i
+ BYTES_PER_LINE
&& j
< length
; j
++)
1936 snprintf(s
, 4, " %02x", buffer
[j
]);
1939 LOG_DEBUG("%s", line
);
1942 #endif // _DEBUG_USB_COMMS_ || _DEBUG_JTAG_IO_