jtag: remove useless declarations
[openocd.git] / src / jtag / vsllink.c
1 /***************************************************************************
2 * Copyright (C) 2009 by Simon Qian <SimonQian@SimonQian.com> *
3 * *
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. *
8 * *
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. *
13 * *
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 ***************************************************************************/
19
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.
23 */
24
25 #ifdef HAVE_CONFIG_H
26 #include "config.h"
27 #endif
28
29 #include "interface.h"
30 #include "commands.h"
31
32 #include <usb.h>
33
34
35 //#define _VSLLINK_IN_DEBUG_MODE_
36
37 #define VSLLINK_MODE_NORMAL 0
38 #define VSLLINK_MODE_DMA 1
39
40 static uint16_t vsllink_usb_vid;
41 static uint16_t vsllink_usb_pid;
42 static uint8_t vsllink_usb_bulkout;
43 static uint8_t vsllink_usb_bulkin;
44 static uint8_t vsllink_usb_interface;
45 static uint8_t vsllink_mode = VSLLINK_MODE_NORMAL;
46 static int VSLLINK_USB_TIMEOUT = 10000;
47
48 static int VSLLINK_BufferSize = 1024;
49
50 /* Global USB buffers */
51 static int vsllink_usb_out_buffer_idx;
52 static int vsllink_usb_in_want_length;
53 static uint8_t* vsllink_usb_in_buffer = NULL;
54 static uint8_t* vsllink_usb_out_buffer = NULL;
55
56 /* Constants for VSLLink command */
57 #define VSLLINK_CMD_CONN 0x80
58 #define VSLLINK_CMD_DISCONN 0x81
59 #define VSLLINK_CMD_SET_SPEED 0x82
60 #define VSLLINK_CMD_SET_PORT 0x90
61 #define VSLLINK_CMD_GET_PORT 0x91
62 #define VSLLINK_CMD_SET_PORTDIR 0x92
63 #define VSLLINK_CMD_HW_JTAGSEQCMD 0xA0
64 #define VSLLINK_CMD_HW_JTAGHLCMD 0xA1
65 #define VSLLINK_CMD_HW_SWDCMD 0xA2
66 #define VSLLINK_CMD_HW_JTAGRAWCMD 0xA3
67
68 #define VSLLINK_CMDJTAGSEQ_TMSBYTE 0x00
69 #define VSLLINK_CMDJTAGSEQ_TMSCLOCK 0x40
70 #define VSLLINK_CMDJTAGSEQ_SCAN 0x80
71
72 #define VSLLINK_CMDJTAGSEQ_CMDMSK 0xC0
73 #define VSLLINK_CMDJTAGSEQ_LENMSK 0x3F
74
75 #define JTAG_PINMSK_SRST (1 << 0)
76 #define JTAG_PINMSK_TRST (1 << 1)
77 #define JTAG_PINMSK_USR1 (1 << 2)
78 #define JTAG_PINMSK_USR2 (1 << 3)
79 #define JTAG_PINMSK_TCK (1 << 4)
80 #define JTAG_PINMSK_TMS (1 << 5)
81 #define JTAG_PINMSK_TDI (1 << 6)
82 #define JTAG_PINMSK_TDO (1 << 7)
83
84
85 #define VSLLINK_TAP_MOVE(from, to) VSLLINK_tap_move[tap_move_ndx(from)][tap_move_ndx(to)]
86
87 /* VSLLINK_tap_move[i][j]: tap movement command to go from state i to state j
88 * 0: Test-Logic-Reset
89 * 1: Run-Test/Idle
90 * 2: Shift-DR
91 * 3: Pause-DR
92 * 4: Shift-IR
93 * 5: Pause-IR
94 *
95 * SD->SD and SI->SI have to be caught in interface specific code
96 */
97 static uint8_t VSLLINK_tap_move[6][6] =
98 {
99 /* TLR RTI SD PD SI PI */
100 {0xff, 0x7f, 0x2f, 0x0a, 0x37, 0x16}, /* TLR */
101 {0xff, 0x00, 0x45, 0x05, 0x4b, 0x0b}, /* RTI */
102 {0xff, 0x61, 0x00, 0x01, 0x0f, 0x2f}, /* SD */
103 {0xfe, 0x60, 0x40, 0x5c, 0x3c, 0x5e}, /* PD */
104 {0xff, 0x61, 0x07, 0x17, 0x00, 0x01}, /* SI */
105 {0xfe, 0x60, 0x38, 0x5c, 0x40, 0x5e} /* PI */
106 };
107
108 typedef struct insert_insignificant_operation
109 {
110 unsigned char insert_value;
111 unsigned char insert_position;
112 }insert_insignificant_operation_t;
113
114 static insert_insignificant_operation_t VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[6][6] =
115 {
116 /* stuff offset */
117 {/* TLR */
118 {1, 0,}, /* TLR */
119 {1, 0,}, /* RTI */
120 {1, 0,}, /* SD */
121 {1, 0,}, /* PD */
122 {1, 0,}, /* SI */
123 {1, 0,}}, /* PI */
124 {/* RTI */
125 {1, 0,}, /* TLR */
126 {0, 0,}, /* RTI */
127 {0, 4,}, /* SD */
128 {0, 7,}, /* PD */
129 {0, 5,}, /* SI */
130 {0, 7,}}, /* PI */
131 {/* SD */
132 {0, 0,}, /* TLR */
133 {0, 0,}, /* RTI */
134 {0, 0,}, /* SD */
135 {0, 0,}, /* PD */
136 {0, 0,}, /* SI */
137 {0, 0,}}, /* PI */
138 {/* PD */
139 {0, 0,}, /* TLR */
140 {0, 0,}, /* RTI */
141 {0, 0,}, /* SD */
142 {0, 0,}, /* PD */
143 {0, 0,}, /* SI */
144 {0, 0,}}, /* PI */
145 {/* SI */
146 {0, 0,}, /* TLR */
147 {0, 0,}, /* RTI */
148 {0, 0,}, /* SD */
149 {0, 0,}, /* PD */
150 {0, 0,}, /* SI */
151 {0, 0,}}, /* PI */
152 {/* PI */
153 {0, 0,}, /* TLR */
154 {0, 0,}, /* RTI */
155 {0, 0,}, /* SD */
156 {0, 0,}, /* PD */
157 {0, 0,}, /* SI */
158 {0, 0,}}, /* PI */
159 };
160
161 static uint8_t VSLLINK_BIT_MSK[8] =
162 {
163 0x00, 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f
164 };
165
166 typedef struct
167 {
168 int offset;
169 int length; /* Number of bits to read */
170 scan_command_t *command; /* Corresponding scan command */
171 uint8_t *buffer;
172 } pending_scan_result_t;
173
174 #define MAX_PENDING_SCAN_RESULTS 256
175
176 static int pending_scan_results_length;
177 static pending_scan_result_t pending_scan_results_buffer[MAX_PENDING_SCAN_RESULTS];
178
179 /* Queue command functions */
180 static void vsllink_end_state(tap_state_t state);
181 static void vsllink_state_move_dma(void);
182 static void vsllink_state_move_normal(void);
183 static void (*vsllink_state_move)(void);
184 static void vsllink_path_move_dma(int num_states, tap_state_t *path);
185 static void vsllink_path_move_normal(int num_states, tap_state_t *path);
186 static void (*vsllink_path_move)(int num_states, tap_state_t *path);
187 static void vsllink_runtest(int num_cycles);
188 static void vsllink_stableclocks_dma(int num_cycles, int tms);
189 static void vsllink_stableclocks_normal(int num_cycles, int tms);
190 static void (*vsllink_stableclocks)(int num_cycles, int tms);
191 static void vsllink_scan_dma(bool ir_scan, enum scan_type type, uint8_t *buffer, int scan_size, scan_command_t *command);
192 static void vsllink_scan_normal(bool ir_scan, enum scan_type type, uint8_t *buffer, int scan_size, scan_command_t *command);
193 static void (*vsllink_scan)(bool ir_scan, enum scan_type type, uint8_t *buffer, int scan_size, scan_command_t *command);
194 static void vsllink_reset(int trst, int srst);
195 static void vsllink_simple_command(uint8_t command);
196 static int vsllink_connect(void);
197 static int vsllink_disconnect(void);
198
199 /* VSLLink tap buffer functions */
200 static void vsllink_tap_append_step(int tms, int tdi);
201 static void vsllink_tap_init_dma(void);
202 static void vsllink_tap_init_normal(void);
203 static void (*vsllink_tap_init)(void);
204 static int vsllink_tap_execute_dma(void);
205 static int vsllink_tap_execute_normal(void);
206 static int (*vsllink_tap_execute)(void);
207 static void vsllink_tap_ensure_space_dma(int scans, int length);
208 static void vsllink_tap_ensure_space_normal(int scans, int length);
209 static void (*vsllink_tap_ensure_space)(int scans, int length);
210 static void vsllink_tap_append_scan_dma(int length, uint8_t *buffer, scan_command_t *command);
211 static void vsllink_tap_append_scan_normal(int length, uint8_t *buffer, scan_command_t *command, int offset);
212
213 /* VSLLink lowlevel functions */
214 typedef struct vsllink_jtag
215 {
216 struct usb_dev_handle* usb_handle;
217 } vsllink_jtag_t;
218
219 static vsllink_jtag_t *vsllink_usb_open(void);
220 static void vsllink_usb_close(vsllink_jtag_t *vsllink_jtag);
221 static int vsllink_usb_message(vsllink_jtag_t *vsllink_jtag, int out_length, int in_length);
222 static int vsllink_usb_write(vsllink_jtag_t *vsllink_jtag, int out_length);
223 static int vsllink_usb_read(vsllink_jtag_t *vsllink_jtag);
224
225 #if defined _DEBUG_USB_COMMS_ || defined _DEBUG_JTAG_IO_
226 static void vsllink_debug_buffer(uint8_t *buffer, int length);
227 #endif
228
229 static int vsllink_tms_data_len = 0;
230 static uint8_t* vsllink_tms_cmd_pos;
231
232 static int tap_length = 0;
233 static int tap_buffer_size = 0;
234 static uint8_t *tms_buffer = NULL;
235 static uint8_t *tdi_buffer = NULL;
236 static uint8_t *tdo_buffer = NULL;
237 static int last_tms;
238
239 static vsllink_jtag_t* vsllink_jtag_handle = NULL;
240
241 static void reset_command_pointer(void)
242 {
243 if (vsllink_mode == VSLLINK_MODE_NORMAL)
244 {
245 vsllink_usb_out_buffer[0] = VSLLINK_CMD_HW_JTAGSEQCMD;
246 vsllink_usb_out_buffer_idx = 3;
247 }
248 else
249 {
250 tap_length = 0;
251 }
252 }
253
254 static int vsllink_execute_queue(void)
255 {
256 jtag_command_t *cmd = jtag_command_queue;
257 int scan_size;
258 enum scan_type type;
259 uint8_t *buffer;
260
261 DEBUG_JTAG_IO("--------------------------------- vsllink -------------------------------------");
262
263 reset_command_pointer();
264 while (cmd != NULL)
265 {
266 switch (cmd->type)
267 {
268 case JTAG_RUNTEST:
269 DEBUG_JTAG_IO("runtest %i cycles, end in %s", cmd->cmd.runtest->num_cycles, \
270 tap_state_name(cmd->cmd.runtest->end_state));
271
272 vsllink_end_state(cmd->cmd.runtest->end_state);
273 vsllink_runtest(cmd->cmd.runtest->num_cycles);
274 break;
275
276 case JTAG_STATEMOVE:
277 DEBUG_JTAG_IO("statemove end in %s", tap_state_name(cmd->cmd.statemove->end_state));
278
279 vsllink_end_state(cmd->cmd.statemove->end_state);
280 vsllink_state_move();
281 break;
282
283 case JTAG_PATHMOVE:
284 DEBUG_JTAG_IO("pathmove: %i states, end in %s", \
285 cmd->cmd.pathmove->num_states, \
286 tap_state_name(cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]));
287
288 vsllink_path_move(cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path);
289 break;
290
291 case JTAG_SCAN:
292 vsllink_end_state(cmd->cmd.scan->end_state);
293
294 scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
295 if (cmd->cmd.scan->ir_scan)
296 {
297 DEBUG_JTAG_IO("JTAG Scan write IR(%d bits), end in %s:", scan_size, tap_state_name(cmd->cmd.scan->end_state));
298 }
299 else
300 {
301 DEBUG_JTAG_IO("JTAG Scan write DR(%d bits), end in %s:", scan_size, tap_state_name(cmd->cmd.scan->end_state));
302 }
303
304 #ifdef _DEBUG_JTAG_IO_
305 vsllink_debug_buffer(buffer, (scan_size + 7) >> 3);
306 #endif
307
308 type = jtag_scan_type(cmd->cmd.scan);
309
310 vsllink_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size, cmd->cmd.scan);
311 break;
312
313 case JTAG_RESET:
314 DEBUG_JTAG_IO("reset trst: %i srst %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
315
316 vsllink_tap_execute();
317
318 if (cmd->cmd.reset->trst == 1)
319 {
320 tap_set_state(TAP_RESET);
321 }
322 vsllink_reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
323 break;
324
325 case JTAG_SLEEP:
326 DEBUG_JTAG_IO("sleep %i", cmd->cmd.sleep->us);
327 vsllink_tap_execute();
328 jtag_sleep(cmd->cmd.sleep->us);
329 break;
330
331 case JTAG_STABLECLOCKS:
332 DEBUG_JTAG_IO("add %d clocks", cmd->cmd.stableclocks->num_cycles);
333 switch (tap_get_state())
334 {
335 case TAP_RESET:
336 // tms should be '1' to stay in TAP_RESET mode
337 scan_size = 1;
338 break;
339 case TAP_DRSHIFT:
340 case TAP_IDLE:
341 case TAP_DRPAUSE:
342 case TAP_IRSHIFT:
343 case TAP_IRPAUSE:
344 // in other mode, tms should be '0'
345 scan_size = 0;
346 break; /* above stable states are OK */
347 default:
348 LOG_ERROR("jtag_add_clocks() was called with TAP in non-stable state \"%s\"",
349 tap_state_name(tap_get_state()));
350 exit(-1);
351 }
352 vsllink_stableclocks(cmd->cmd.stableclocks->num_cycles, scan_size);
353 break;
354
355 default:
356 LOG_ERROR("BUG: unknown JTAG command type encountered: %d", cmd->type);
357 exit(-1);
358 }
359 cmd = cmd->next;
360 }
361
362 return vsllink_tap_execute();
363 }
364
365 static int vsllink_speed(int speed)
366 {
367 int result;
368
369 vsllink_usb_out_buffer[0] = VSLLINK_CMD_SET_SPEED;
370 vsllink_usb_out_buffer[1] = (speed >> 0) & 0xff;
371 vsllink_usb_out_buffer[2] = (speed >> 8) & 0xFF;
372
373 result = vsllink_usb_write(vsllink_jtag_handle, 3);
374
375 if (result == 3)
376 {
377 return ERROR_OK;
378 }
379 else
380 {
381 LOG_ERROR("VSLLink setting speed failed (%d)", result);
382 return ERROR_JTAG_DEVICE_ERROR;
383 }
384
385 return ERROR_OK;
386 }
387
388 static int vsllink_khz(int khz, int *jtag_speed)
389 {
390 *jtag_speed = khz;
391
392 return ERROR_OK;
393 }
394
395 static int vsllink_speed_div(int jtag_speed, int *khz)
396 {
397 *khz = jtag_speed;
398
399 return ERROR_OK;
400 }
401
402 static int vsllink_init(void)
403 {
404 int check_cnt, to_tmp;
405 int result;
406 char version_str[100];
407
408 vsllink_usb_in_buffer = malloc(VSLLINK_BufferSize);
409 vsllink_usb_out_buffer = malloc(VSLLINK_BufferSize);
410 if ((vsllink_usb_in_buffer == NULL) || (vsllink_usb_out_buffer == NULL))
411 {
412 LOG_ERROR("Not enough memory");
413 exit(-1);
414 }
415
416 vsllink_jtag_handle = vsllink_usb_open();
417
418 if (vsllink_jtag_handle == 0)
419 {
420 LOG_ERROR("Can't find USB JTAG Interface! Please check connection and permissions.");
421 return ERROR_JTAG_INIT_FAILED;
422 }
423 LOG_DEBUG("vsllink found on %04X:%04X", vsllink_usb_vid, vsllink_usb_pid);
424
425 to_tmp = VSLLINK_USB_TIMEOUT;
426 VSLLINK_USB_TIMEOUT = 100;
427 check_cnt = 0;
428 while (check_cnt < 5)
429 {
430 vsllink_simple_command(0x00);
431 result = vsllink_usb_read(vsllink_jtag_handle);
432
433 if (result > 2)
434 {
435 vsllink_usb_in_buffer[result] = 0;
436 VSLLINK_BufferSize = vsllink_usb_in_buffer[0] + (vsllink_usb_in_buffer[1] << 8);
437 strncpy(version_str, (char *)vsllink_usb_in_buffer + 2, sizeof(version_str));
438 LOG_INFO("%s", version_str);
439
440 // free the pre-alloc memroy
441 free(vsllink_usb_in_buffer);
442 free(vsllink_usb_out_buffer);
443 vsllink_usb_in_buffer = NULL;
444 vsllink_usb_out_buffer = NULL;
445
446 // alloc new memory
447 vsllink_usb_in_buffer = malloc(VSLLINK_BufferSize);
448 vsllink_usb_out_buffer = malloc(VSLLINK_BufferSize);
449 if ((vsllink_usb_in_buffer == NULL) || (vsllink_usb_out_buffer == NULL))
450 {
451 LOG_ERROR("Not enough memory");
452 exit(-1);
453 }
454 else
455 {
456 LOG_INFO("buffer size for USB is %d bytes", VSLLINK_BufferSize);
457 }
458 // alloc memory for dma mode
459 if (vsllink_mode == VSLLINK_MODE_DMA)
460 {
461 tap_buffer_size = (VSLLINK_BufferSize - 3) / 2;
462 tms_buffer = (uint8_t*)malloc(tap_buffer_size);
463 tdi_buffer = (uint8_t*)malloc(tap_buffer_size);
464 tdo_buffer = (uint8_t*)malloc(tap_buffer_size);
465 if ((tms_buffer == NULL) || (tdi_buffer == NULL) || (tdo_buffer == NULL))
466 {
467 LOG_ERROR("Not enough memory");
468 exit(-1);
469 }
470 }
471 break;
472 }
473 vsllink_simple_command(VSLLINK_CMD_DISCONN);
474 check_cnt++;
475 }
476 if (check_cnt == 3)
477 {
478 // It's dangerout to proced
479 LOG_ERROR("VSLLink initial failed");
480 exit(-1);
481 }
482 VSLLINK_USB_TIMEOUT = to_tmp;
483
484 // connect to vsllink
485 vsllink_connect();
486 // initialize function pointers
487 if (vsllink_mode == VSLLINK_MODE_NORMAL)
488 {
489 // normal mode
490 vsllink_state_move = vsllink_state_move_normal;
491 vsllink_path_move = vsllink_path_move_normal;
492 vsllink_stableclocks = vsllink_stableclocks_normal;
493 vsllink_scan = vsllink_scan_normal;
494
495 vsllink_tap_init = vsllink_tap_init_normal;
496 vsllink_tap_execute = vsllink_tap_execute_normal;
497 vsllink_tap_ensure_space = vsllink_tap_ensure_space_normal;
498
499 LOG_INFO("vsllink run in NORMAL mode");
500 }
501 else
502 {
503 // dma mode
504 vsllink_state_move = vsllink_state_move_dma;
505 vsllink_path_move = vsllink_path_move_dma;
506 vsllink_stableclocks = vsllink_stableclocks_dma;
507 vsllink_scan = vsllink_scan_dma;
508
509 vsllink_tap_init = vsllink_tap_init_dma;
510 vsllink_tap_execute = vsllink_tap_execute_dma;
511 vsllink_tap_ensure_space = vsllink_tap_ensure_space_dma;
512
513 LOG_INFO("vsllink run in DMA mode");
514 }
515
516 // Set SRST and TRST to output, Set USR1 and USR2 to input
517 vsllink_usb_out_buffer[0] = VSLLINK_CMD_SET_PORTDIR;
518 vsllink_usb_out_buffer[1] = JTAG_PINMSK_SRST | JTAG_PINMSK_TRST | JTAG_PINMSK_USR1 | JTAG_PINMSK_USR2;
519 vsllink_usb_out_buffer[2] = JTAG_PINMSK_SRST | JTAG_PINMSK_TRST;
520 if (vsllink_usb_write(vsllink_jtag_handle, 3) != 3)
521 {
522 LOG_ERROR("VSLLink USB send data error");
523 exit(-1);
524 }
525
526 vsllink_reset(0, 0);
527
528 LOG_INFO("VSLLink JTAG Interface ready");
529
530 vsllink_tap_init();
531
532 return ERROR_OK;
533 }
534
535 static int vsllink_quit(void)
536 {
537 if ((vsllink_usb_in_buffer != NULL) && (vsllink_usb_out_buffer != NULL))
538 {
539 // Set all pins to input
540 vsllink_usb_out_buffer[0] = VSLLINK_CMD_SET_PORTDIR;
541 vsllink_usb_out_buffer[1] = JTAG_PINMSK_SRST | JTAG_PINMSK_TRST | JTAG_PINMSK_USR1 | JTAG_PINMSK_USR2;
542 vsllink_usb_out_buffer[2] = 0;
543 if (vsllink_usb_write(vsllink_jtag_handle, 3) != 3)
544 {
545 LOG_ERROR("VSLLink USB send data error");
546 exit(-1);
547 }
548
549 // disconnect
550 vsllink_disconnect();
551 vsllink_usb_close(vsllink_jtag_handle);
552 vsllink_jtag_handle = NULL;
553 }
554
555 if (vsllink_usb_in_buffer != NULL)
556 {
557 free(vsllink_usb_in_buffer);
558 vsllink_usb_in_buffer = NULL;
559 }
560 if (vsllink_usb_out_buffer != NULL)
561 {
562 free(vsllink_usb_out_buffer);
563 vsllink_usb_out_buffer = NULL;
564 }
565
566 return ERROR_OK;
567 }
568
569 /***************************************************************************/
570 /* Queue command implementations */
571 static int vsllink_disconnect(void)
572 {
573 vsllink_simple_command(VSLLINK_CMD_DISCONN);
574 return ERROR_OK;
575 }
576
577 static int vsllink_connect(void)
578 {
579 char vsllink_str[100];
580
581 vsllink_usb_out_buffer[0] = VSLLINK_CMD_CONN;
582 vsllink_usb_out_buffer[1] = vsllink_mode;
583 vsllink_usb_message(vsllink_jtag_handle, 2, 0);
584 if (vsllink_usb_read(vsllink_jtag_handle) > 2)
585 {
586 strncpy(vsllink_str, (char *)vsllink_usb_in_buffer + 2, sizeof(vsllink_str));
587 LOG_INFO("%s", vsllink_str);
588 }
589
590 return ERROR_OK;
591 }
592
593 // when vsllink_tms_data_len > 0, vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] is the byte that need to be appended.
594 // length of VSLLINK_CMDJTAGSEQ_TMSBYTE has been set, no need to set it here.
595 static void vsllink_append_tms(void)
596 {
597 uint8_t tms_scan = VSLLINK_TAP_MOVE(tap_get_state(), tap_get_end_state());
598 uint16_t tms2;
599 insert_insignificant_operation_t *insert = \
600 &VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[tap_move_ndx(tap_get_state())][tap_move_ndx(tap_get_end_state())];
601
602 if (((tap_get_state() != TAP_RESET) && (tap_get_state() != TAP_IDLE) && (tap_get_state() != TAP_DRPAUSE) && (tap_get_state() != TAP_IRPAUSE)) || \
603 (vsllink_tms_data_len <= 0) || (vsllink_tms_data_len >= 8) || \
604 (vsllink_tms_cmd_pos == NULL))
605 {
606 LOG_ERROR("There MUST be some bugs in the driver");
607 exit(-1);
608 }
609
610 tms2 = (tms_scan & VSLLINK_BIT_MSK[insert->insert_position]) << \
611 vsllink_tms_data_len;
612 if (insert->insert_value == 1)
613 {
614 tms2 |= VSLLINK_BIT_MSK[8 - vsllink_tms_data_len] << \
615 (vsllink_tms_data_len + insert->insert_position);
616 }
617 tms2 |= (tms_scan >> insert->insert_position) << \
618 (8 + insert->insert_position);
619
620 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] |= (tms2 >> 0) & 0xff;
621 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tms2 >> 8) & 0xff;
622
623 vsllink_tms_data_len = 0;
624 vsllink_tms_cmd_pos = NULL;
625 }
626
627 static void vsllink_end_state(tap_state_t state)
628 {
629 if (tap_is_state_stable(state))
630 {
631 tap_set_end_state(state);
632 }
633 else
634 {
635 LOG_ERROR("BUG: %i is not a valid end state", state);
636 exit(-1);
637 }
638 }
639
640 /* Goes to the end state. */
641 static void vsllink_state_move_normal(void)
642 {
643 if (vsllink_tms_data_len > 0)
644 {
645 vsllink_append_tms();
646 }
647 else
648 {
649 vsllink_tap_ensure_space(0, 2);
650
651 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE;
652 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_TAP_MOVE(tap_get_state(), tap_get_end_state());
653 }
654
655 tap_set_state(tap_get_end_state());
656 }
657 static void vsllink_state_move_dma(void)
658 {
659 int i, insert_length = (tap_length % 8) ? (8 - (tap_length % 8)) : 0;
660 insert_insignificant_operation_t *insert = \
661 &VSLLINK_TAP_MOVE_INSERT_INSIGNIFICANT[tap_move_ndx(tap_get_state())][tap_move_ndx(tap_get_end_state())];
662 uint8_t tms_scan = VSLLINK_TAP_MOVE(tap_get_state(), tap_get_end_state());
663
664 if (tap_get_state() == TAP_RESET)
665 {
666 vsllink_tap_ensure_space(0, 8);
667
668 for (i = 0; i < 8; i++)
669 {
670 vsllink_tap_append_step(1, 0);
671 }
672 }
673
674 if (insert_length > 0)
675 {
676 vsllink_tap_ensure_space(0, 16);
677
678 for (i = 0; i < insert->insert_position; i++)
679 {
680 vsllink_tap_append_step((tms_scan >> i) & 1, 0);
681 }
682 for (i = 0; i < insert_length; i++)
683 {
684 vsllink_tap_append_step(insert->insert_value, 0);
685 }
686 for (i = insert->insert_position; i < 8; i++)
687 {
688 vsllink_tap_append_step((tms_scan >> i) & 1, 0);
689 }
690 }
691 else
692 {
693 vsllink_tap_ensure_space(0, 8);
694
695 for (i = 0; i < 8; i++)
696 {
697 vsllink_tap_append_step((tms_scan >> i) & 1, 0);
698 }
699 }
700
701 tap_set_state(tap_get_end_state());
702 }
703
704 // write tms from current vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx]
705 static void vsllink_add_path(int start, int num, tap_state_t *path)
706 {
707 int i;
708
709 for (i = start; i < (start + num); i++)
710 {
711 if ((i & 7) == 0)
712 {
713 if (i > 0)
714 {
715 vsllink_usb_out_buffer_idx++;
716 }
717 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = 0;
718 }
719
720 if (path[i - start] == tap_state_transition(tap_get_state(), true))
721 {
722 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] |= 1 << (i & 7);
723 }
724 else if (path[i - start] == tap_state_transition(tap_get_state(), false))
725 {
726 // nothing to do
727 }
728 else
729 {
730 LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(tap_get_state()), tap_state_name(path[i]));
731 exit(-1);
732 }
733 tap_set_state(path[i - start]);
734 }
735 if ((i > 0) && ((i & 7) == 0))
736 {
737 vsllink_usb_out_buffer_idx++;
738 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = 0;
739 }
740
741 tap_set_end_state(tap_get_state());
742 }
743
744 static void vsllink_path_move_normal(int num_states, tap_state_t *path)
745 {
746 int i, tms_len, tms_cmd_pos, path_idx = 0;
747
748 if (vsllink_tms_data_len > 0)
749 {
750 // there are vsllink_tms_data_len more tms bits to be shifted
751 // so there are vsllink_tms_data_len + num_states tms bits in all
752 tms_len = vsllink_tms_data_len + num_states;
753 if (tms_len <= 16)
754 {
755 // merge into last tms shift
756 if (tms_len < 8)
757 {
758 // just append tms data to the last tms byte
759 vsllink_add_path(vsllink_tms_data_len, num_states, path);
760 }
761 else if (tms_len == 8)
762 {
763 // end last tms shift command
764 (*vsllink_tms_cmd_pos)--;
765 vsllink_add_path(vsllink_tms_data_len, num_states, path);
766 }
767 else if (tms_len < 16)
768 {
769 if ((*vsllink_tms_cmd_pos & VSLLINK_CMDJTAGSEQ_LENMSK) < VSLLINK_CMDJTAGSEQ_LENMSK)
770 {
771 // every tms shift command can contain VSLLINK_CMDJTAGSEQ_LENMSK + 1 bytes in most
772 // there is enought tms length in the current tms shift command
773 (*vsllink_tms_cmd_pos)++;
774 vsllink_add_path(vsllink_tms_data_len, num_states, path);
775 }
776 else
777 {
778 // every tms shift command can contain VSLLINK_CMDJTAGSEQ_LENMSK + 1 bytes in most
779 // not enough tms length in the current tms shift command
780 // so a new command should be added
781 // first decrease byte length of last tms shift command
782 (*vsllink_tms_cmd_pos)--;
783 // append tms data to the last tms byte
784 vsllink_add_path(vsllink_tms_data_len, 8 - vsllink_tms_data_len, path);
785 path += 8 - vsllink_tms_data_len;
786 // add new command(3 bytes)
787 vsllink_tap_ensure_space(0, 3);
788 vsllink_tms_cmd_pos = &vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx];
789 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE | 1;
790 vsllink_add_path(0, num_states - (8 - vsllink_tms_data_len), path);
791 }
792 }
793 else if (tms_len == 16)
794 {
795 // end last tms shift command
796 vsllink_add_path(vsllink_tms_data_len, num_states, path);
797 }
798
799 vsllink_tms_data_len = (vsllink_tms_data_len + num_states) & 7;
800 if (vsllink_tms_data_len == 0)
801 {
802 vsllink_tms_cmd_pos = NULL;
803 }
804 num_states = 0;
805 }
806 else
807 {
808 vsllink_add_path(vsllink_tms_data_len, 16 - vsllink_tms_data_len, path);
809
810 path += 16 - vsllink_tms_data_len;
811 num_states -= 16 - vsllink_tms_data_len;
812 vsllink_tms_data_len = 0;
813 vsllink_tms_cmd_pos = NULL;
814 }
815 }
816
817 if (num_states > 0)
818 {
819 // Normal operation, don't need to append tms data
820 vsllink_tms_data_len = num_states & 7;
821
822 while (num_states > 0)
823 {
824 if (num_states > ((VSLLINK_CMDJTAGSEQ_LENMSK + 1) * 8))
825 {
826 i = (VSLLINK_CMDJTAGSEQ_LENMSK + 1) * 8;
827 }
828 else
829 {
830 i = num_states;
831 }
832 tms_len = (i + 7) >> 3;
833 vsllink_tap_ensure_space(0, tms_len + 2);
834 tms_cmd_pos = vsllink_usb_out_buffer_idx;
835 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE | (tms_len - 1);
836
837 vsllink_add_path(0, i, path + path_idx);
838
839 path_idx += i;
840 num_states -= i;
841 }
842
843 if (vsllink_tms_data_len > 0)
844 {
845 if (tms_len < (VSLLINK_CMDJTAGSEQ_LENMSK + 1))
846 {
847 vsllink_tms_cmd_pos = &vsllink_usb_out_buffer[tms_cmd_pos];
848 (*vsllink_tms_cmd_pos)++;
849 }
850 else
851 {
852 vsllink_usb_out_buffer[tms_cmd_pos]--;
853
854 tms_len = vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx];
855 vsllink_tap_ensure_space(0, 3);
856 vsllink_tms_cmd_pos = &vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx];
857 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE | 1;
858 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = tms_len;
859 }
860 }
861 }
862 }
863 static void vsllink_path_move_dma(int num_states, tap_state_t *path)
864 {
865 int i, j = 0;
866
867 if (tap_length & 7)
868 {
869 if ((8 - (tap_length & 7)) < num_states)
870 {
871 j = 8 - (tap_length & 7);
872 }
873 else
874 {
875 j = num_states;
876 }
877 for (i = 0; i < j; i++)
878 {
879 if (path[i] == tap_state_transition(tap_get_state(), false))
880 {
881 vsllink_tap_append_step(0, 0);
882 }
883 else if (path[i] == tap_state_transition(tap_get_state(), true))
884 {
885 vsllink_tap_append_step(1, 0);
886 }
887 else
888 {
889 LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(tap_get_state()), tap_state_name(path[i]));
890 exit(-1);
891 }
892 tap_set_state(path[i]);
893 }
894 num_states -= j;
895 }
896
897 if (num_states > 0)
898 {
899 vsllink_tap_ensure_space(0, num_states);
900
901 for (i = 0; i < num_states; i++)
902 {
903 if (path[j + i] == tap_state_transition(tap_get_state(), false))
904 {
905 vsllink_tap_append_step(0, 0);
906 }
907 else if (path[j + i] == tap_state_transition(tap_get_state(), true))
908 {
909 vsllink_tap_append_step(1, 0);
910 }
911 else
912 {
913 LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(tap_get_state()), tap_state_name(path[i]));
914 exit(-1);
915 }
916 tap_set_state(path[j + i]);
917 }
918 }
919
920 tap_set_end_state(tap_get_state());
921 }
922
923 static void vsllink_stableclocks_normal(int num_cycles, int tms)
924 {
925 int tms_len;
926 uint16_t tms_append_byte;
927
928 if (vsllink_tms_data_len > 0)
929 {
930 // there are vsllink_tms_data_len more tms bits to be shifted
931 // so there are vsllink_tms_data_len + num_cycles tms bits in all
932 tms_len = vsllink_tms_data_len + num_cycles;
933 if (tms > 0)
934 {
935 // append '1' for tms
936 tms_append_byte = (uint16_t)((((1 << num_cycles) - 1) << vsllink_tms_data_len) & 0xFFFF);
937 }
938 else
939 {
940 // append '0' for tms
941 tms_append_byte = 0;
942 }
943 if (tms_len <= 16)
944 {
945 // merge into last tms shift
946 if (tms_len < 8)
947 {
948 // just add to vsllink_tms_data_len
949 // same result if tun through
950 //vsllink_tms_data_len += num_cycles;
951 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] |= (uint8_t)(tms_append_byte & 0xFF);
952 }
953 else if (tms_len == 8)
954 {
955 // end last tms shift command
956 // just reduce it, and append last tms byte
957 (*vsllink_tms_cmd_pos)--;
958 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] |= (uint8_t)(tms_append_byte & 0xFF);
959 }
960 else if (tms_len < 16)
961 {
962 if ((*vsllink_tms_cmd_pos & VSLLINK_CMDJTAGSEQ_LENMSK) < VSLLINK_CMDJTAGSEQ_LENMSK)
963 {
964 // every tms shift command can contain VSLLINK_CMDJTAGSEQ_LENMSK + 1 bytes in most
965 // there is enought tms length in the current tms shift command
966 // increase the tms byte length by 1 and set the last byte to 0
967 (*vsllink_tms_cmd_pos)++;
968 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] |= (uint8_t)(tms_append_byte & 0xFF);
969 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = (uint8_t)(tms_append_byte >> 8);
970 }
971 else
972 {
973 // every tms shift command can contain VSLLINK_CMDJTAGSEQ_LENMSK + 1 bytes in most
974 // not enough tms length in the current tms shift command
975 // so a new command should be added
976 // first decrease byte length of last tms shift command
977 (*vsllink_tms_cmd_pos)--;
978 // append last tms byte and move the command pointer to the next empty position
979 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] |= (uint8_t)(tms_append_byte & 0xFF);
980 // add new command(3 bytes)
981 vsllink_tap_ensure_space(0, 3);
982 vsllink_tms_cmd_pos = &vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx];
983 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE | 1;
984 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = (uint8_t)(tms_append_byte >> 8);
985 }
986 }
987 else if (tms_len == 16)
988 {
989 // end last tms shift command
990 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] |= (uint8_t)(tms_append_byte & 0xFF);
991 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (uint8_t)(tms_append_byte >> 8);
992 }
993
994 vsllink_tms_data_len = tms_len & 7;
995 if (vsllink_tms_data_len == 0)
996 {
997 vsllink_tms_cmd_pos = NULL;
998 }
999 num_cycles = 0;
1000 }
1001 else
1002 {
1003 // more shifts will be needed
1004 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] |= (uint8_t)(tms_append_byte & 0xFF);
1005 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (uint8_t)(tms_append_byte >> 8);
1006
1007 num_cycles -= 16 - vsllink_tms_data_len;
1008 vsllink_tms_data_len = 0;
1009 vsllink_tms_cmd_pos = NULL;
1010 }
1011 }
1012 // from here vsllink_tms_data_len == 0 or num_cycles == 0
1013
1014 if (vsllink_tms_data_len > 0)
1015 {
1016 // num_cycles == 0
1017 // no need to shift
1018 if (num_cycles > 0)
1019 {
1020 LOG_ERROR("There MUST be some bugs in the driver");
1021 exit(-1);
1022 }
1023 }
1024 else
1025 {
1026 // get number of bytes left to be sent
1027 tms_len = num_cycles >> 3;
1028 if (tms_len > 0)
1029 {
1030 vsllink_tap_ensure_space(1, 5);
1031 // if tms_len > 0, vsllink_tms_data_len == 0
1032 // so just add new command
1033 // LSB of the command byte is the tms value when do the shifting
1034 if (tms > 0)
1035 {
1036 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSCLOCK | 1;
1037 }
1038 else
1039 {
1040 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSCLOCK;
1041 }
1042 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tms_len >> 0) & 0xff;
1043 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tms_len >> 8) & 0xff;
1044 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tms_len >> 16) & 0xff;
1045 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tms_len >> 24) & 0xff;
1046
1047 vsllink_usb_in_want_length += 1;
1048 pending_scan_results_buffer[pending_scan_results_length].buffer = NULL;
1049 pending_scan_results_length++;
1050
1051 if (tms_len > 0xFFFF)
1052 {
1053 vsllink_tap_execute();
1054 }
1055 }
1056
1057 // post-process
1058 vsllink_tms_data_len = num_cycles & 7;
1059 if (vsllink_tms_data_len > 0)
1060 {
1061 vsllink_tap_ensure_space(0, 3);
1062 vsllink_tms_cmd_pos = &vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx];
1063 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_TMSBYTE | 1;
1064 if (tms > 0)
1065 {
1066 // append '1' for tms
1067 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = (1 << vsllink_tms_data_len) - 1;
1068 }
1069 else
1070 {
1071 // append '0' for tms
1072 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] = 0x00;
1073 }
1074 }
1075 }
1076 }
1077 static void vsllink_stableclocks_dma(int num_cycles, int tms)
1078 {
1079 int i, cur_cycles;
1080
1081 if (tap_length & 7)
1082 {
1083 if ((8 - (tap_length & 7)) < num_cycles)
1084 {
1085 cur_cycles = 8 - (tap_length & 7);
1086 }
1087 else
1088 {
1089 cur_cycles = num_cycles;
1090 }
1091 for (i = 0; i < cur_cycles; i++)
1092 {
1093 vsllink_tap_append_step(tms, 0);
1094 }
1095 num_cycles -= cur_cycles;
1096 }
1097
1098 while (num_cycles > 0)
1099 {
1100 if (num_cycles > 8 * tap_buffer_size)
1101 {
1102 cur_cycles = 8 * tap_buffer_size;
1103 }
1104 else
1105 {
1106 cur_cycles = num_cycles;
1107 }
1108
1109 vsllink_tap_ensure_space(0, cur_cycles);
1110
1111 for (i = 0; i < cur_cycles; i++)
1112 {
1113 vsllink_tap_append_step(tms, 0);
1114 }
1115
1116 num_cycles -= cur_cycles;
1117 }
1118 }
1119
1120 static void vsllink_runtest(int num_cycles)
1121 {
1122 tap_state_t saved_end_state = tap_get_end_state();
1123
1124 if (tap_get_state() != TAP_IDLE)
1125 {
1126 // enter into IDLE state
1127 vsllink_end_state(TAP_IDLE);
1128 vsllink_state_move();
1129 }
1130
1131 vsllink_stableclocks(num_cycles, 0);
1132
1133 // post-process
1134 // set end_state
1135 vsllink_end_state(saved_end_state);
1136 tap_set_state(TAP_IDLE);
1137 if (tap_get_end_state() != TAP_IDLE)
1138 {
1139 vsllink_state_move();
1140 }
1141 }
1142
1143 static void vsllink_scan_normal(bool ir_scan, enum scan_type type, uint8_t *buffer, int scan_size, scan_command_t *command)
1144 {
1145 tap_state_t saved_end_state;
1146 uint8_t bits_left, tms_tmp, tdi_len;
1147 int i;
1148
1149 if (0 == scan_size)
1150 {
1151 return;
1152 }
1153
1154 tdi_len = ((scan_size + 7) >> 3);
1155 if ((tdi_len + 7) > VSLLINK_BufferSize)
1156 {
1157 LOG_ERROR("Your implementation of VSLLink has not enough buffer");
1158 exit(-1);
1159 }
1160
1161 saved_end_state = tap_get_end_state();
1162
1163 /* Move to appropriate scan state */
1164 vsllink_end_state(ir_scan ? TAP_IRSHIFT : TAP_DRSHIFT);
1165
1166 if (vsllink_tms_data_len > 0)
1167 {
1168 if (tap_get_state() == tap_get_end_state())
1169 {
1170 // already in IRSHIFT or DRSHIFT state
1171 // merge tms data in the last tms shift command into next scan command
1172 if (*vsllink_tms_cmd_pos < 1)
1173 {
1174 LOG_ERROR("There MUST be some bugs in the driver");
1175 exit(-1);
1176 }
1177 else if (*vsllink_tms_cmd_pos < 2)
1178 {
1179 tms_tmp = vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx];
1180 vsllink_usb_out_buffer_idx--;
1181 }
1182 else
1183 {
1184 tms_tmp = vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx];
1185 *vsllink_tms_cmd_pos -= 2;
1186 }
1187
1188 vsllink_tap_ensure_space(1, tdi_len + 7);
1189 // VSLLINK_CMDJTAGSEQ_SCAN ored by 1 means that tms_before is valid
1190 // which is merged from the last tms shift command
1191 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_SCAN | 1;
1192 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = ((tdi_len + 1) >> 0) & 0xff;
1193 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = ((tdi_len + 1) >> 8) & 0xff;
1194 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = tms_tmp;
1195 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = buffer[0] << (8 - vsllink_tms_data_len);
1196
1197 for (i = 0; i < tdi_len; i++)
1198 {
1199 buffer[i] >>= 8 - vsllink_tms_data_len;
1200 if (i != tdi_len)
1201 {
1202 buffer[i] += buffer[i + 1] << vsllink_tms_data_len;
1203 }
1204 }
1205
1206 vsllink_tap_append_scan_normal(scan_size - vsllink_tms_data_len, buffer, command, vsllink_tms_data_len);
1207 scan_size -= 8 - vsllink_tms_data_len;
1208 vsllink_tms_data_len = 0;
1209 }
1210 else
1211 {
1212 vsllink_state_move();
1213 vsllink_tap_ensure_space(1, tdi_len + 5);
1214
1215 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_SCAN;
1216 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tdi_len >> 0) & 0xff;
1217 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = (tdi_len >> 8) & 0xff;
1218
1219 vsllink_tap_append_scan_normal(scan_size, buffer, command, 0);
1220 }
1221 }
1222 else
1223 {
1224 vsllink_tap_ensure_space(1, tdi_len + 7);
1225
1226 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_CMDJTAGSEQ_SCAN | 1;
1227 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = ((tdi_len + 1) >> 0) & 0xff;
1228 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = ((tdi_len + 1)>> 8) & 0xff;
1229 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_TAP_MOVE(tap_get_state(), tap_get_end_state());
1230 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 0;
1231
1232 vsllink_tap_append_scan_normal(scan_size, buffer, command, 8);
1233 }
1234 vsllink_end_state(saved_end_state);
1235
1236 bits_left = scan_size & 0x07;
1237 tap_set_state(ir_scan ? TAP_IRPAUSE : TAP_DRPAUSE);
1238
1239 if (bits_left > 0)
1240 {
1241 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 1 << (bits_left - 1);
1242 }
1243 else
1244 {
1245 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 1 << 7;
1246 }
1247
1248 if (tap_get_state() != tap_get_end_state())
1249 {
1250 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = VSLLINK_TAP_MOVE(tap_get_state(), tap_get_end_state());
1251 }
1252 else
1253 {
1254 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 0;
1255 }
1256
1257 tap_set_state(tap_get_end_state());
1258 }
1259 static void vsllink_scan_dma(bool ir_scan, enum scan_type type, uint8_t *buffer, int scan_size, scan_command_t *command)
1260 {
1261 tap_state_t saved_end_state;
1262
1263 saved_end_state = tap_get_end_state();
1264
1265 /* Move to appropriate scan state */
1266 vsllink_end_state(ir_scan ? TAP_IRSHIFT : TAP_DRSHIFT);
1267
1268 vsllink_state_move();
1269 vsllink_end_state(saved_end_state);
1270
1271 /* Scan */
1272 vsllink_tap_append_scan_dma(scan_size, buffer, command);
1273
1274 tap_set_state(ir_scan ? TAP_IRPAUSE : TAP_DRPAUSE);
1275 while (tap_length % 8 != 0)
1276 {
1277 // more 0s in Pause
1278 vsllink_tap_append_step(0, 0);
1279 }
1280
1281 if (tap_get_state() != tap_get_end_state())
1282 {
1283 vsllink_state_move();
1284 }
1285 }
1286
1287 static void vsllink_reset(int trst, int srst)
1288 {
1289 int result;
1290
1291 LOG_DEBUG("trst: %i, srst: %i", trst, srst);
1292
1293 /* Signals are active low */
1294 vsllink_usb_out_buffer[0] = VSLLINK_CMD_SET_PORT;
1295 vsllink_usb_out_buffer[1] = JTAG_PINMSK_SRST | JTAG_PINMSK_TRST;
1296 vsllink_usb_out_buffer[2] = 0;
1297 if (srst == 0)
1298 {
1299 vsllink_usb_out_buffer[2] |= JTAG_PINMSK_SRST;
1300 }
1301 if (trst == 0)
1302 {
1303 vsllink_usb_out_buffer[2] |= JTAG_PINMSK_TRST;
1304 }
1305
1306 result = vsllink_usb_write(vsllink_jtag_handle, 3);
1307 if (result != 3)
1308 {
1309 LOG_ERROR("VSLLink command VSLLINK_CMD_SET_PORT failed (%d)", result);
1310 }
1311 }
1312
1313 static void vsllink_simple_command(uint8_t command)
1314 {
1315 int result;
1316
1317 DEBUG_JTAG_IO("0x%02x", command);
1318
1319 vsllink_usb_out_buffer[0] = command;
1320 result = vsllink_usb_write(vsllink_jtag_handle, 1);
1321
1322 if (result != 1)
1323 {
1324 LOG_ERROR("VSLLink command 0x%02x failed (%d)", command, result);
1325 }
1326 }
1327
1328 static int vsllink_handle_mode_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1329 {
1330 if (argc != 1) {
1331 LOG_ERROR("parameter error, should be one parameter for VID");
1332 return ERROR_FAIL;
1333 }
1334
1335 if (!strcmp(args[0], "normal"))
1336 {
1337 vsllink_mode = VSLLINK_MODE_NORMAL;
1338 }
1339 else if (!strcmp(args[0], "dma"))
1340 {
1341 vsllink_mode = VSLLINK_MODE_DMA;
1342 }
1343 else
1344 {
1345 LOG_ERROR("invalid vsllink_mode: %s", args[0]);
1346 return ERROR_FAIL;
1347 }
1348
1349 return ERROR_OK;
1350 }
1351
1352 static int vsllink_handle_usb_vid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1353 {
1354 if (argc != 1)
1355 {
1356 LOG_ERROR("parameter error, should be one parameter for VID");
1357 return ERROR_OK;
1358 }
1359
1360 COMMAND_PARSE_NUMBER(u16, args[0], vsllink_usb_vid);
1361 return ERROR_OK;
1362 }
1363
1364 static int vsllink_handle_usb_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1365 {
1366 if (argc != 1)
1367 {
1368 LOG_ERROR("parameter error, should be one parameter for PID");
1369 return ERROR_OK;
1370 }
1371 COMMAND_PARSE_NUMBER(u16, args[0], vsllink_usb_pid);
1372 return ERROR_OK;
1373 }
1374
1375 static int vsllink_handle_usb_bulkin_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1376 {
1377 if (argc != 1)
1378 {
1379 LOG_ERROR("parameter error, should be one parameter for BULKIN endpoint");
1380 return ERROR_OK;
1381 }
1382
1383 COMMAND_PARSE_NUMBER(u8, args[0], vsllink_usb_bulkin);
1384
1385 vsllink_usb_bulkin |= 0x80;
1386
1387 return ERROR_OK;
1388 }
1389
1390 static int vsllink_handle_usb_bulkout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1391 {
1392 if (argc != 1)
1393 {
1394 LOG_ERROR("parameter error, should be one parameter for BULKOUT endpoint");
1395 return ERROR_OK;
1396 }
1397
1398 COMMAND_PARSE_NUMBER(u8, args[0], vsllink_usb_bulkout);
1399
1400 vsllink_usb_bulkout &= ~0x80;
1401
1402 return ERROR_OK;
1403 }
1404
1405 static int vsllink_handle_usb_interface_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1406 {
1407 if (argc != 1)
1408 {
1409 LOG_ERROR("parameter error, should be one parameter for interface number");
1410 return ERROR_OK;
1411 }
1412
1413 COMMAND_PARSE_NUMBER(u8, args[0], vsllink_usb_interface);
1414 return ERROR_OK;
1415 }
1416
1417 /***************************************************************************/
1418 /* VSLLink tap functions */
1419
1420 static void vsllink_tap_init_normal(void)
1421 {
1422 vsllink_usb_out_buffer_idx = 0;
1423 vsllink_usb_in_want_length = 0;
1424 pending_scan_results_length = 0;
1425 }
1426 static void vsllink_tap_init_dma(void)
1427 {
1428 tap_length = 0;
1429 pending_scan_results_length = 0;
1430 }
1431
1432 static void vsllink_tap_ensure_space_normal(int scans, int length)
1433 {
1434 int available_scans = MAX_PENDING_SCAN_RESULTS - pending_scan_results_length;
1435 int available_bytes = VSLLINK_BufferSize - vsllink_usb_out_buffer_idx;
1436
1437 if (scans > available_scans || length > available_bytes)
1438 {
1439 vsllink_tap_execute();
1440 }
1441 }
1442 static void vsllink_tap_ensure_space_dma(int scans, int length)
1443 {
1444 int available_scans = MAX_PENDING_SCAN_RESULTS - pending_scan_results_length;
1445 int available_bytes = tap_buffer_size * 8 - tap_length;
1446
1447 if (scans > available_scans || length > available_bytes)
1448 {
1449 vsllink_tap_execute();
1450 }
1451 }
1452
1453 static void vsllink_tap_append_step(int tms, int tdi)
1454 {
1455 last_tms = tms;
1456 int index = tap_length / 8;
1457
1458 if (index < tap_buffer_size)
1459 {
1460 int bit_index = tap_length % 8;
1461 uint8_t bit = 1 << bit_index;
1462
1463 if (tms)
1464 {
1465 tms_buffer[index] |= bit;
1466 }
1467 else
1468 {
1469 tms_buffer[index] &= ~bit;
1470 }
1471
1472 if (tdi)
1473 {
1474 tdi_buffer[index] |= bit;
1475 }
1476 else
1477 {
1478 tdi_buffer[index] &= ~bit;
1479 }
1480
1481 tap_length++;
1482 }
1483 else
1484 {
1485 LOG_ERROR("buffer overflow, tap_length=%d", tap_length);
1486 }
1487 }
1488
1489 static void vsllink_tap_append_scan_normal(int length, uint8_t *buffer, scan_command_t *command, int offset)
1490 {
1491 pending_scan_result_t *pending_scan_result = &pending_scan_results_buffer[pending_scan_results_length];
1492 int i;
1493
1494 if (offset > 0)
1495 {
1496 vsllink_usb_in_want_length += ((length + 7) >> 3) + 1;
1497 }
1498 else
1499 {
1500 vsllink_usb_in_want_length += (length + 7) >> 3;
1501 }
1502 pending_scan_result->length = length;
1503 pending_scan_result->offset = offset;
1504 pending_scan_result->command = command;
1505 pending_scan_result->buffer = buffer;
1506
1507 for (i = 0; i < ((length + 7) >> 3); i++)
1508 {
1509 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = buffer[i];
1510 }
1511
1512 pending_scan_results_length++;
1513 }
1514 static void vsllink_tap_append_scan_dma(int length, uint8_t *buffer, scan_command_t *command)
1515 {
1516 pending_scan_result_t *pending_scan_result;
1517 int len_tmp, len_all, i;
1518
1519 len_all = 0;
1520 while (len_all < length)
1521 {
1522 if ((length - len_all) > tap_buffer_size * 8)
1523 {
1524 len_tmp = tap_buffer_size * 8;
1525 }
1526 else
1527 {
1528 len_tmp = length - len_all;
1529 }
1530
1531 vsllink_tap_ensure_space(1, (len_tmp + 7) & ~7);
1532
1533 pending_scan_result = &pending_scan_results_buffer[pending_scan_results_length];
1534 pending_scan_result->offset = tap_length;
1535 pending_scan_result->length = len_tmp;
1536 pending_scan_result->command = command;
1537 pending_scan_result->buffer = buffer + len_all / 8;
1538
1539 for (i = 0; i < len_tmp; i++)
1540 {
1541 vsllink_tap_append_step(((len_all + i) < length-1 ? 0 : 1), (buffer[(len_all + i)/8] >> ((len_all + i)%8)) & 1);
1542 }
1543
1544 pending_scan_results_length++;
1545 len_all += len_tmp;
1546 }
1547 }
1548
1549 /* Pad and send a tap sequence to the device, and receive the answer.
1550 * For the purpose of padding we assume that we are in reset or idle or pause state. */
1551 static int vsllink_tap_execute_normal(void)
1552 {
1553 int i;
1554 int result;
1555 int first = 0;
1556
1557 if (vsllink_tms_data_len > 0)
1558 {
1559 if ((tap_get_state() != TAP_RESET) && (tap_get_state() != TAP_IDLE) && (tap_get_state() != TAP_IRPAUSE) && (tap_get_state() != TAP_DRPAUSE))
1560 {
1561 LOG_WARNING("%s is not in RESET or IDLE or PAUSR state", tap_state_name(tap_get_state()));
1562 }
1563
1564 if (vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx] & (1 << (vsllink_tms_data_len - 1)))
1565 {
1566 // last tms bit is '1'
1567 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] |= 0xFF << vsllink_tms_data_len;
1568 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 0xFF;
1569 vsllink_tms_data_len = 0;
1570 }
1571 else
1572 {
1573 // last tms bit is '0'
1574 vsllink_usb_out_buffer_idx++;
1575 vsllink_usb_out_buffer[vsllink_usb_out_buffer_idx++] = 0;
1576 vsllink_tms_data_len = 0;
1577 }
1578 }
1579
1580 if (vsllink_usb_out_buffer_idx > 3)
1581 {
1582 if (vsllink_usb_out_buffer[0] == VSLLINK_CMD_HW_JTAGSEQCMD)
1583 {
1584 vsllink_usb_out_buffer[1] = (vsllink_usb_out_buffer_idx >> 0) & 0xff;
1585 vsllink_usb_out_buffer[2] = (vsllink_usb_out_buffer_idx >> 8) & 0xff;
1586 }
1587
1588 result = vsllink_usb_message(vsllink_jtag_handle, vsllink_usb_out_buffer_idx, vsllink_usb_in_want_length);
1589
1590 if (result == vsllink_usb_in_want_length)
1591 {
1592 for (i = 0; i < pending_scan_results_length; i++)
1593 {
1594 pending_scan_result_t *pending_scan_result = &pending_scan_results_buffer[i];
1595 uint8_t *buffer = pending_scan_result->buffer;
1596 int length = pending_scan_result->length;
1597 int offset = pending_scan_result->offset;
1598 scan_command_t *command = pending_scan_result->command;
1599
1600 if (buffer != NULL)
1601 {
1602 // IRSHIFT or DRSHIFT
1603 buf_set_buf(vsllink_usb_in_buffer, first * 8 + offset, buffer, 0, length);
1604 first += (length + offset + 7) >> 3;
1605
1606 DEBUG_JTAG_IO("JTAG scan read(%d bits):", length);
1607 #ifdef _DEBUG_JTAG_IO_
1608 vsllink_debug_buffer(buffer, (length + 7) >> 3);
1609 #endif
1610
1611 if (jtag_read_buffer(buffer, command) != ERROR_OK)
1612 {
1613 vsllink_tap_init();
1614 return ERROR_JTAG_QUEUE_FAILED;
1615 }
1616
1617 free(pending_scan_result->buffer);
1618 pending_scan_result->buffer = NULL;
1619 }
1620 else
1621 {
1622 first++;
1623 }
1624 }
1625 }
1626 else
1627 {
1628 LOG_ERROR("vsllink_tap_execute, wrong result %d, expected %d", result, vsllink_usb_in_want_length);
1629 return ERROR_JTAG_QUEUE_FAILED;
1630 }
1631
1632 vsllink_tap_init();
1633 }
1634 reset_command_pointer();
1635
1636 return ERROR_OK;
1637 }
1638 static int vsllink_tap_execute_dma(void)
1639 {
1640 int byte_length;
1641 int i;
1642 int result;
1643
1644 if (tap_length > 0)
1645 {
1646 /* Pad last byte so that tap_length is divisible by 8 */
1647 while (tap_length % 8 != 0)
1648 {
1649 /* More of the last TMS value keeps us in the same state,
1650 * analogous to free-running JTAG interfaces. */
1651 vsllink_tap_append_step(last_tms, 0);
1652 }
1653 byte_length = tap_length / 8;
1654
1655 vsllink_usb_out_buffer[0] = VSLLINK_CMD_HW_JTAGRAWCMD;
1656 vsllink_usb_out_buffer[1] = ((byte_length * 2 + 3) >> 0) & 0xff; // package size
1657 vsllink_usb_out_buffer[2] = ((byte_length * 2 + 3) >> 8) & 0xff;
1658
1659 memcpy(&vsllink_usb_out_buffer[3], tdi_buffer, byte_length);
1660 memcpy(&vsllink_usb_out_buffer[3 + byte_length], tms_buffer, byte_length);
1661
1662 result = vsllink_usb_message(vsllink_jtag_handle, 3 + 2 * byte_length, byte_length);
1663 if (result == byte_length)
1664 {
1665 for (i = 0; i < pending_scan_results_length; i++)
1666 {
1667 pending_scan_result_t *pending_scan_result = &pending_scan_results_buffer[i];
1668 uint8_t *buffer = pending_scan_result->buffer;
1669 int length = pending_scan_result->length;
1670 int first = pending_scan_result->offset;
1671
1672 scan_command_t *command = pending_scan_result->command;
1673 buf_set_buf(vsllink_usb_in_buffer, first, buffer, 0, length);
1674
1675 DEBUG_JTAG_IO("JTAG scan read(%d bits, from %d bits):", length, first);
1676 #ifdef _DEBUG_JTAG_IO_
1677 vsllink_debug_buffer(buffer, (length + 7) >> 3);
1678 #endif
1679
1680 if (jtag_read_buffer(buffer, command) != ERROR_OK)
1681 {
1682 vsllink_tap_init();
1683 return ERROR_JTAG_QUEUE_FAILED;
1684 }
1685
1686 if (pending_scan_result->buffer != NULL)
1687 {
1688 free(pending_scan_result->buffer);
1689 }
1690 }
1691 }
1692 else
1693 {
1694 LOG_ERROR("vsllink_tap_execute, wrong result %d, expected %d", result, byte_length);
1695 return ERROR_JTAG_QUEUE_FAILED;
1696 }
1697
1698 vsllink_tap_init();
1699 }
1700
1701 return ERROR_OK;
1702 }
1703
1704 /*****************************************************************************/
1705 /* VSLLink USB low-level functions */
1706
1707 static vsllink_jtag_t* vsllink_usb_open(void)
1708 {
1709 struct usb_bus *busses;
1710 struct usb_bus *bus;
1711 struct usb_device *dev;
1712 int ret;
1713
1714 vsllink_jtag_t *result;
1715
1716 result = (vsllink_jtag_t*) malloc(sizeof(vsllink_jtag_t));
1717
1718 usb_init();
1719 usb_find_busses();
1720 usb_find_devices();
1721
1722 busses = usb_get_busses();
1723
1724 /* find vsllink_jtag device in usb bus */
1725
1726 for (bus = busses; bus; bus = bus->next)
1727 {
1728 for (dev = bus->devices; dev; dev = dev->next)
1729 {
1730 if ((dev->descriptor.idVendor == vsllink_usb_vid) && (dev->descriptor.idProduct == vsllink_usb_pid))
1731 {
1732 result->usb_handle = usb_open(dev);
1733 if (NULL == result->usb_handle)
1734 {
1735 LOG_ERROR("failed to open %04X:%04X, not enough permissions?", vsllink_usb_vid, vsllink_usb_pid);
1736 exit(-1);
1737 }
1738
1739 /* usb_set_configuration required under win32 */
1740 ret = usb_set_configuration(result->usb_handle, dev->config[0].bConfigurationValue);
1741 if (ret != 0)
1742 {
1743 LOG_ERROR("fail to set configuration to %d, %d returned, not enough permissions?", dev->config[0].bConfigurationValue, ret);
1744 exit(-1);
1745 }
1746 ret = usb_claim_interface(result->usb_handle, vsllink_usb_interface);
1747 if (ret != 0)
1748 {
1749 LOG_ERROR("fail to claim interface %d, %d returned", vsllink_usb_interface, ret);
1750 exit(-1);
1751 }
1752
1753 #if 0
1754 /*
1755 * This makes problems under Mac OS X. And is not needed
1756 * under Windows. Hopefully this will not break a linux build
1757 */
1758 usb_set_altinterface(result->usb_handle, 0);
1759 #endif
1760 return result;
1761 }
1762 }
1763 }
1764
1765 free(result);
1766 return NULL;
1767 }
1768
1769 static void vsllink_usb_close(vsllink_jtag_t *vsllink_jtag)
1770 {
1771 int ret;
1772
1773 ret = usb_release_interface(vsllink_jtag->usb_handle, vsllink_usb_interface);
1774 if (ret != 0)
1775 {
1776 LOG_ERROR("fail to release interface %d, %d returned", vsllink_usb_interface, ret);
1777 exit(-1);
1778 }
1779
1780 ret = usb_close(vsllink_jtag->usb_handle);
1781 if (ret != 0)
1782 {
1783 LOG_ERROR("fail to close usb, %d returned", ret);
1784 exit(-1);
1785 }
1786
1787 free(vsllink_jtag);
1788 }
1789
1790 /* Send a message and receive the reply. */
1791 static int vsllink_usb_message(vsllink_jtag_t *vsllink_jtag, int out_length, int in_length)
1792 {
1793 int result;
1794
1795 result = vsllink_usb_write(vsllink_jtag, out_length);
1796 if (result == out_length)
1797 {
1798 if (in_length > 0)
1799 {
1800 result = vsllink_usb_read(vsllink_jtag);
1801 if (result == in_length)
1802 {
1803 return result;
1804 }
1805 else
1806 {
1807 LOG_ERROR("usb_bulk_read failed (requested=%d, result=%d)", in_length, result);
1808 return -1;
1809 }
1810 }
1811 return 0;
1812 }
1813 else
1814 {
1815 LOG_ERROR("usb_bulk_write failed (requested=%d, result=%d)", out_length, result);
1816 return -1;
1817 }
1818 }
1819
1820 /* Write data from out_buffer to USB. */
1821 static int vsllink_usb_write(vsllink_jtag_t *vsllink_jtag, int out_length)
1822 {
1823 int result;
1824
1825 if (out_length > VSLLINK_BufferSize)
1826 {
1827 LOG_ERROR("vsllink_jtag_write illegal out_length=%d (max=%d)", out_length, VSLLINK_BufferSize);
1828 return -1;
1829 }
1830
1831 result = usb_bulk_write(vsllink_jtag->usb_handle, vsllink_usb_bulkout, \
1832 (char *)vsllink_usb_out_buffer, out_length, VSLLINK_USB_TIMEOUT);
1833
1834 DEBUG_JTAG_IO("vsllink_usb_write, out_length = %d, result = %d", out_length, result);
1835
1836 #ifdef _DEBUG_USB_COMMS_
1837 LOG_DEBUG("USB out:");
1838 vsllink_debug_buffer(vsllink_usb_out_buffer, out_length);
1839 #endif
1840
1841 #ifdef _VSLLINK_IN_DEBUG_MODE_
1842 usleep(100000);
1843 #endif
1844
1845 return result;
1846 }
1847
1848 /* Read data from USB into in_buffer. */
1849 static int vsllink_usb_read(vsllink_jtag_t *vsllink_jtag)
1850 {
1851 int result = usb_bulk_read(vsllink_jtag->usb_handle, vsllink_usb_bulkin, \
1852 (char *)vsllink_usb_in_buffer, VSLLINK_BufferSize, VSLLINK_USB_TIMEOUT);
1853
1854 DEBUG_JTAG_IO("vsllink_usb_read, result = %d", result);
1855
1856 #ifdef _DEBUG_USB_COMMS_
1857 LOG_DEBUG("USB in:");
1858 vsllink_debug_buffer(vsllink_usb_in_buffer, result);
1859 #endif
1860 return result;
1861 }
1862
1863 #define BYTES_PER_LINE 16
1864
1865 #if defined _DEBUG_USB_COMMS_ || defined _DEBUG_JTAG_IO_
1866 static void vsllink_debug_buffer(uint8_t *buffer, int length)
1867 {
1868 char line[81];
1869 char s[4];
1870 int i;
1871 int j;
1872
1873 for (i = 0; i < length; i += BYTES_PER_LINE)
1874 {
1875 snprintf(line, 5, "%04x", i);
1876 for (j = i; j < i + BYTES_PER_LINE && j < length; j++)
1877 {
1878 snprintf(s, 4, " %02x", buffer[j]);
1879 strcat(line, s);
1880 }
1881 LOG_DEBUG("%s", line);
1882 }
1883 }
1884 #endif // _DEBUG_USB_COMMS_ || _DEBUG_JTAG_IO_
1885
1886 static int vsllink_register_commands(struct command_context_s *cmd_ctx)
1887 {
1888 register_command(cmd_ctx, NULL, "vsllink_usb_vid",
1889 vsllink_handle_usb_vid_command, COMMAND_CONFIG,
1890 NULL);
1891 register_command(cmd_ctx, NULL, "vsllink_usb_pid",
1892 vsllink_handle_usb_pid_command, COMMAND_CONFIG,
1893 NULL);
1894 register_command(cmd_ctx, NULL, "vsllink_usb_bulkin",
1895 vsllink_handle_usb_bulkin_command, COMMAND_CONFIG,
1896 NULL);
1897 register_command(cmd_ctx, NULL, "vsllink_usb_bulkout",
1898 vsllink_handle_usb_bulkout_command, COMMAND_CONFIG,
1899 NULL);
1900 register_command(cmd_ctx, NULL, "vsllink_usb_interface",
1901 vsllink_handle_usb_interface_command, COMMAND_CONFIG,
1902 NULL);
1903 register_command(cmd_ctx, NULL, "vsllink_mode",
1904 vsllink_handle_mode_command, COMMAND_CONFIG,
1905 NULL);
1906
1907 return ERROR_OK;
1908 }
1909
1910 jtag_interface_t vsllink_interface = {
1911 .name = "vsllink",
1912 .register_commands = &vsllink_register_commands,
1913 .init = &vsllink_init,
1914 .quit = &vsllink_quit,
1915 .khz = &vsllink_khz,
1916 .speed = &vsllink_speed,
1917 .speed_div = &vsllink_speed_div,
1918 .execute_queue = &vsllink_execute_queue,
1919 };