svf.c 36 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
/*
 * Copyright (C) 2009 by Simon Qian
 * SimonQian@SimonQian.com
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34


/* The specification for SVF is available here:
 * http://www.asset-intertech.com/support/svf.pdf
 * Below, this document is refered to as the "SVF spec".
 *
 * The specification for XSVF is available here:
 * http://www.xilinx.com/support/documentation/application_notes/xapp503.pdf
 * Below, this document is refered to as the "XSVF spec".
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "jtag.h"
David Brownell's avatar
David Brownell committed
35
#include "svf.h"
36
#include "time_support.h"
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57


// SVF command
typedef enum
{
	ENDDR,
	ENDIR,
	FREQUENCY,
	HDR,
	HIR,
	PIO,
	PIOMAP,
	RUNTEST,
	SDR,
	SIR,
	STATE,
	TDR,
	TIR,
	TRST,
}svf_command_t;

58
static const char *svf_command_name[14] =
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
{
	"ENDDR",
	"ENDIR",
	"FREQUENCY",
	"HDR",
	"HIR",
	"PIO",
	"PIOMAP",
	"RUNTEST",
	"SDR",
	"SIR",
	"STATE",
	"TDR",
	"TIR",
	"TRST"
};

typedef enum
{
	TRST_ON,
	TRST_OFF,
	TRST_Z,
	TRST_ABSENT
}trst_mode_t;

84
static const char *svf_trst_mode_name[4] =
85
86
87
88
89
90
91
{
	"ON",
	"OFF",
	"Z",
	"ABSENT"
};

92
struct svf_statemove
93
94
95
{
	tap_state_t from;
	tap_state_t to;
96
	uint32_t num_of_moves;
97
	tap_state_t paths[8];
98
};
99

100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
/*
 * These paths are from the SVF specification for the STATE command, to be
 * used when the STATE command only includes the final state.  The first
 * element of the path is the "from" (current) state, and the last one is
 * the "to" (target) state.
 *
 * All specified paths are the shortest ones in the JTAG spec, and are thus
 * not (!!) exact matches for the paths used elsewhere in OpenOCD.  Note
 * that PAUSE-to-PAUSE transitions all go through UPDATE and then CAPTURE,
 * which has specific effects on the various registers; they are not NOPs.
 *
 * Paths to RESET are disabled here.  As elsewhere in OpenOCD, and in XSVF
 * and many SVF implementations, we don't want to risk missing that state.
 * To get to RESET, always we ignore the current state.
 */
115
static const struct svf_statemove svf_statemoves[] =
116
117
118
119
120
121
{
	// from			to				num_of_moves,	paths[8]
//	{TAP_RESET,		TAP_RESET,		1,				{TAP_RESET}},
	{TAP_RESET,		TAP_IDLE,		2,				{TAP_RESET, TAP_IDLE}},
	{TAP_RESET,		TAP_DRPAUSE,	6,				{TAP_RESET, TAP_IDLE, TAP_DRSELECT, TAP_DRCAPTURE, TAP_DREXIT1, TAP_DRPAUSE}},
	{TAP_RESET,		TAP_IRPAUSE,	7,				{TAP_RESET, TAP_IDLE, TAP_DRSELECT, TAP_IRSELECT, TAP_IRCAPTURE, TAP_IREXIT1, TAP_IRPAUSE}},
122

123
124
125
126
//	{TAP_IDLE,		TAP_RESET,		4,				{TAP_IDLE, TAP_DRSELECT, TAP_IRSELECT, TAP_RESET}},
	{TAP_IDLE,		TAP_IDLE,		1,				{TAP_IDLE}},
	{TAP_IDLE,		TAP_DRPAUSE,	5,				{TAP_IDLE, TAP_DRSELECT, TAP_DRCAPTURE, TAP_DREXIT1, TAP_DRPAUSE}},
	{TAP_IDLE,		TAP_IRPAUSE,	6,				{TAP_IDLE, TAP_DRSELECT, TAP_IRSELECT, TAP_IRCAPTURE, TAP_IREXIT1, TAP_IRPAUSE}},
127

128
129
130
131
//	{TAP_DRPAUSE,	TAP_RESET,		6,				{TAP_DRPAUSE, TAP_DREXIT2, TAP_DRUPDATE, TAP_DRSELECT, TAP_IRSELECT, TAP_RESET}},
	{TAP_DRPAUSE,	TAP_IDLE,		4,				{TAP_DRPAUSE, TAP_DREXIT2, TAP_DRUPDATE, TAP_IDLE}},
	{TAP_DRPAUSE,	TAP_DRPAUSE,	7,				{TAP_DRPAUSE, TAP_DREXIT2, TAP_DRUPDATE, TAP_DRSELECT, TAP_DRCAPTURE, TAP_DREXIT1, TAP_DRPAUSE}},
	{TAP_DRPAUSE,	TAP_IRPAUSE,	8,				{TAP_DRPAUSE, TAP_DREXIT2, TAP_DRUPDATE, TAP_DRSELECT, TAP_IRSELECT, TAP_IRCAPTURE, TAP_IREXIT1, TAP_IRPAUSE}},
132

133
134
135
136
137
138
//	{TAP_IRPAUSE,	TAP_RESET,		6,				{TAP_IRPAUSE, TAP_IREXIT2, TAP_IRUPDATE, TAP_DRSELECT, TAP_IRSELECT, TAP_RESET}},
	{TAP_IRPAUSE,	TAP_IDLE,		4,				{TAP_IRPAUSE, TAP_IREXIT2, TAP_IRUPDATE, TAP_IDLE}},
	{TAP_IRPAUSE,	TAP_DRPAUSE,	7,				{TAP_IRPAUSE, TAP_IREXIT2, TAP_IRUPDATE, TAP_DRSELECT, TAP_DRCAPTURE, TAP_DREXIT1, TAP_DRPAUSE}},
	{TAP_IRPAUSE,	TAP_IRPAUSE,	8,				{TAP_IRPAUSE, TAP_IREXIT2, TAP_IRUPDATE, TAP_DRSELECT, TAP_IRSELECT, TAP_IRCAPTURE, TAP_IREXIT1, TAP_IRPAUSE}}
};

139
140
141
142
143

#define XXR_TDI						(1 << 0)
#define XXR_TDO						(1 << 1)
#define XXR_MASK					(1 << 2)
#define XXR_SMASK					(1 << 3)
144
struct svf_xxr_para
145
146
147
{
	int len;
	int data_mask;
zwelch's avatar
zwelch committed
148
149
150
151
	uint8_t *tdi;
	uint8_t *tdo;
	uint8_t *mask;
	uint8_t *smask;
152
};
153

154
struct svf_para
155
156
157
158
159
160
161
162
{
	float frequency;
	tap_state_t ir_end_state;
	tap_state_t dr_end_state;
	tap_state_t runtest_run_state;
	tap_state_t runtest_end_state;
	trst_mode_t trst_mode;

163
164
165
166
167
168
169
	struct svf_xxr_para hir_para;
	struct svf_xxr_para hdr_para;
	struct svf_xxr_para tir_para;
	struct svf_xxr_para tdr_para;
	struct svf_xxr_para sir_para;
	struct svf_xxr_para sdr_para;
};
170

171
172
static struct svf_para svf_para;
static const struct svf_para svf_para_init =
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
{
//	frequency,	ir_end_state,	dr_end_state,	runtest_run_state,	runtest_end_state,	trst_mode
	0,			TAP_IDLE,		TAP_IDLE,		TAP_IDLE,			TAP_IDLE,			TRST_Z,
//	hir_para
//	{len,	data_mask,	tdi,	tdo,	mask,	smask},
	{0,		0,			NULL,	NULL,	NULL,	NULL},
//	hdr_para
//	{len,	data_mask,	tdi,	tdo,	mask,	smask},
	{0,		0,			NULL,	NULL,	NULL,	NULL},
//	tir_para
//	{len,	data_mask,	tdi,	tdo,	mask,	smask},
	{0,		0,			NULL,	NULL,	NULL,	NULL},
//	tdr_para
//	{len,	data_mask,	tdi,	tdo,	mask,	smask},
	{0,		0,			NULL,	NULL,	NULL,	NULL},
//	sir_para
//	{len,	data_mask,	tdi,	tdo,	mask,	smask},
	{0,		0,			NULL,	NULL,	NULL,	NULL},
//	sdr_para
//	{len,	data_mask,	tdi,	tdo,	mask,	smask},
	{0,		0,			NULL,	NULL,	NULL,	NULL},
};

196
struct svf_check_tdo_para
197
198
199
200
201
202
{
	int line_num;		// used to record line number of the check operation
						// so more information could be printed
	int enabled;		// check is enabled or not
	int buffer_offset;	// buffer_offset to buffers
	int bit_len;		// bit length to check
203
};
204
205

#define SVF_CHECK_TDO_PARA_SIZE	1024
206
static struct svf_check_tdo_para *svf_check_tdo_para = NULL;
207
208
209
210
static int svf_check_tdo_para_index = 0;

static int svf_read_command_from_file(int fd);
static int svf_check_tdo(void);
zwelch's avatar
zwelch committed
211
static int svf_add_check_para(uint8_t enabled, int buffer_offset, int bit_len);
212
static int svf_run_command(struct command_context *cmd_ctx, char *cmd_str);
213
214
215
216
217
218

static int svf_fd = 0;
static char *svf_command_buffer = NULL;
static int svf_command_buffer_size = 0;
static int svf_line_number = 1;

219
static struct jtag_tap *tap = NULL;
220
221

#define SVF_MAX_BUFFER_SIZE_TO_COMMIT	(4 * 1024)
zwelch's avatar
zwelch committed
222
static uint8_t *svf_tdi_buffer = NULL, *svf_tdo_buffer = NULL, *svf_mask_buffer = NULL;
223
static int svf_buffer_index = 0, svf_buffer_size = 0;
224
static int svf_quiet = 0;
225
226


227
static void svf_free_xxd_para(struct svf_xxr_para *para)
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
{
	if (NULL != para)
	{
		if (para->tdi != NULL)
		{
			free(para->tdi);
			para->tdi = NULL;
		}
		if (para->tdo != NULL)
		{
			free(para->tdo);
			para->tdo = NULL;
		}
		if (para->mask != NULL)
		{
			free(para->mask);
			para->mask = NULL;
		}
		if (para->smask != NULL)
		{
			free(para->smask);
			para->smask = NULL;
		}
	}
}

254
static unsigned svf_get_mask_u32(int bitlen)
zwelch's avatar
zwelch committed
255
{
256
	uint32_t bitmask;
zwelch's avatar
zwelch committed
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273

	if (bitlen < 0)
	{
		bitmask = 0;
	}
	else if (bitlen >= 32)
	{
		bitmask = 0xFFFFFFFF;
	}
	else
	{
		bitmask = (1 << bitlen) - 1;
	}

	return bitmask;
}

David Brownell's avatar
David Brownell committed
274
int svf_add_statemove(tap_state_t state_to)
275
276
{
	tap_state_t state_from = cmd_queue_cur_state;
zwelch's avatar
zwelch committed
277
	uint8_t index;
278

279
280
281
282
283
284
	/* when resetting, be paranoid and ignore current state */
	if (state_to == TAP_RESET) {
		jtag_add_tlr();
		return ERROR_OK;
	}

285
	for (index = 0; index < ARRAY_SIZE(svf_statemoves); index++)
286
	{
287
		if ((svf_statemoves[index].from == state_from)
288
289
			&& (svf_statemoves[index].to == state_to))
		{
290
291
292
293
			/* recorded path includes current state ... avoid extra TCKs! */
			if (svf_statemoves[index].num_of_moves > 1)
				jtag_add_pathmove(svf_statemoves[index].num_of_moves - 1,
						svf_statemoves[index].paths + 1);
294
			else
295
296
				jtag_add_pathmove(svf_statemoves[index].num_of_moves,
						svf_statemoves[index].paths);
297
298
299
			return ERROR_OK;
		}
	}
300
	LOG_ERROR("SVF: can not move to %s", tap_state_name(state_to));
301
302
303
	return ERROR_FAIL;
}

304
COMMAND_HANDLER(handle_svf_command)
305
{
306
#define SVF_NUM_OF_OPTIONS			1
307
	int command_num = 0;
308
	int ret = ERROR_OK;
309
	long long time_ago;
310

311
	if ((CMD_ARGC < 1) || (CMD_ARGC > (1 + SVF_NUM_OF_OPTIONS)))
312
	{
313
		command_print(cmd_ctx, "usage: svf <file> [quiet]");
314
315
316
		return ERROR_FAIL;
	}

317
318
	// parse variant
	svf_quiet = 0;
319
	for (unsigned i = 1; i < CMD_ARGC; i++)
320
321
322
323
324
325
326
327
328
329
330
331
332
333
	{
		if (!strcmp(args[i], "quiet"))
		{
			svf_quiet = 1;
		}
		else
		{
			LOG_ERROR("unknown variant for svf: %s", args[i]);

			// no need to free anything now
			return ERROR_FAIL;
		}
	}

334
335
336
	if ((svf_fd = open(args[0], O_RDONLY)) < 0)
	{
		command_print(cmd_ctx, "file \"%s\" not found", args[0]);
337
338

		// no need to free anything now
339
340
341
342
343
		return ERROR_FAIL;
	}

	LOG_USER("svf processing file: \"%s\"", args[0]);

344
345
346
	// get time
	time_ago = timeval_ms();

347
348
349
350
351
	// init
	svf_line_number = 1;
	svf_command_buffer_size = 0;

	svf_check_tdo_para_index = 0;
352
	svf_check_tdo_para = malloc(sizeof(struct svf_check_tdo_para) * SVF_CHECK_TDO_PARA_SIZE);
353
354
355
356
357
358
359
360
361
362
363
364
	if (NULL == svf_check_tdo_para)
	{
		LOG_ERROR("not enough memory");
		ret = ERROR_FAIL;
		goto free_all;
	}

	svf_buffer_index = 0;
	// double the buffer size
	// in case current command cannot be commited, and next command is a bit scan command
	// here is 32K bits for this big scan command, it should be enough
	// buffer will be reallocated if buffer size is not enough
zwelch's avatar
zwelch committed
365
	svf_tdi_buffer = (uint8_t *)malloc(2 * SVF_MAX_BUFFER_SIZE_TO_COMMIT);
366
367
368
369
370
371
	if (NULL == svf_tdi_buffer)
	{
		LOG_ERROR("not enough memory");
		ret = ERROR_FAIL;
		goto free_all;
	}
zwelch's avatar
zwelch committed
372
	svf_tdo_buffer = (uint8_t *)malloc(2 * SVF_MAX_BUFFER_SIZE_TO_COMMIT);
373
374
375
376
377
378
	if (NULL == svf_tdo_buffer)
	{
		LOG_ERROR("not enough memory");
		ret = ERROR_FAIL;
		goto free_all;
	}
zwelch's avatar
zwelch committed
379
	svf_mask_buffer = (uint8_t *)malloc(2 * SVF_MAX_BUFFER_SIZE_TO_COMMIT);
380
381
382
383
384
385
386
387
388
	if (NULL == svf_mask_buffer)
	{
		LOG_ERROR("not enough memory");
		ret = ERROR_FAIL;
		goto free_all;
	}
	svf_buffer_size = 2 * SVF_MAX_BUFFER_SIZE_TO_COMMIT;

	memcpy(&svf_para, &svf_para_init, sizeof(svf_para));
389

390
391
392
	// TAP_RESET
	jtag_add_tlr();

393
	while (ERROR_OK == svf_read_command_from_file(svf_fd))
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
	{
		if (ERROR_OK != svf_run_command(cmd_ctx, svf_command_buffer))
		{
			LOG_ERROR("fail to run command at line %d", svf_line_number);
			ret = ERROR_FAIL;
			break;
		}
		command_num++;
	}
	if (ERROR_OK != jtag_execute_queue())
	{
		ret = ERROR_FAIL;
	}
	else if (ERROR_OK != svf_check_tdo())
	{
		ret = ERROR_FAIL;
	}

412
	// print time
413
	command_print(cmd_ctx, "%lld ms used", timeval_ms() - time_ago);
414

415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
free_all:

	close(svf_fd);
	svf_fd = 0;

	// free buffers
	if (svf_command_buffer)
	{
		free(svf_command_buffer);
		svf_command_buffer = NULL;
		svf_command_buffer_size = 0;
	}
	if (svf_check_tdo_para)
	{
		free(svf_check_tdo_para);
		svf_check_tdo_para = NULL;
		svf_check_tdo_para_index = 0;
	}
	if (svf_tdi_buffer)
	{
		free(svf_tdi_buffer);
		svf_tdi_buffer = NULL;
	}
	if (svf_tdo_buffer)
	{
		free(svf_tdo_buffer);
		svf_tdo_buffer = NULL;
	}
	if (svf_mask_buffer)
	{
		free(svf_mask_buffer);
		svf_mask_buffer = NULL;
	}
	svf_buffer_index = 0;
	svf_buffer_size = 0;

	svf_free_xxd_para(&svf_para.hdr_para);
	svf_free_xxd_para(&svf_para.hir_para);
	svf_free_xxd_para(&svf_para.tdr_para);
	svf_free_xxd_para(&svf_para.tir_para);
	svf_free_xxd_para(&svf_para.sdr_para);
	svf_free_xxd_para(&svf_para.sir_para);

	if (ERROR_OK == ret)
	{
		command_print(cmd_ctx, "svf file programmed successfully for %d commands", command_num);
	}
	else
	{
		command_print(cmd_ctx, "svf file programmed failed");
	}

	return ret;
}

#define SVFP_CMD_INC_CNT			1024
static int svf_read_command_from_file(int fd)
{
	char ch, *tmp_buffer = NULL;
	int cmd_pos = 0, cmd_ok = 0, slash = 0, comment = 0;

476
	while (!cmd_ok && (read(fd, &ch, 1) > 0))
477
	{
zwelch's avatar
zwelch committed
478
		switch (ch)
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
		{
		case '!':
			slash = 0;
			comment = 1;
			break;
		case '/':
			if (++slash == 2)
			{
				comment = 1;
			}
			break;
		case ';':
			slash = 0;
			if (!comment)
			{
				cmd_ok = 1;
			}
			break;
		case '\n':
			svf_line_number++;
		case '\r':
			slash = 0;
			comment = 0;
			break;
		default:
			if (!comment)
			{
				if (cmd_pos >= svf_command_buffer_size - 1)
				{
					tmp_buffer = (char*)malloc(svf_command_buffer_size + SVFP_CMD_INC_CNT);		// 1 more byte for '\0'
					if (NULL == tmp_buffer)
					{
						LOG_ERROR("not enough memory");
						return ERROR_FAIL;
					}
					if (svf_command_buffer_size > 0)
					{
						memcpy(tmp_buffer, svf_command_buffer, svf_command_buffer_size);
					}
					if (svf_command_buffer != NULL)
					{
						free(svf_command_buffer);
					}
					svf_command_buffer = tmp_buffer;
					svf_command_buffer_size += SVFP_CMD_INC_CNT;
					tmp_buffer = NULL;
				}
				svf_command_buffer[cmd_pos++] = (char)toupper(ch);
			}
			break;
		}
	}

	if (cmd_ok)
	{
		svf_command_buffer[cmd_pos] = '\0';
		return ERROR_OK;
	}
	else
	{
		return ERROR_FAIL;
	}
}

static int svf_parse_cmd_string(char *str, int len, char **argus, int *num_of_argu)
{
	int pos = 0, num = 0, space_found = 1;

	while (pos < len)
	{
zwelch's avatar
zwelch committed
549
		switch (str[pos])
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
		{
		case '\n':
		case '\r':
		case '!':
		case '/':
			LOG_ERROR("fail to parse svf command");
			return ERROR_FAIL;
			break;
		case ' ':
			space_found = 1;
			str[pos] = '\0';
			break;
		default:
			if (space_found)
			{
				argus[num++] = &str[pos];
				space_found = 0;
			}
			break;
		}
		pos++;
	}

	*num_of_argu = num;

	return ERROR_OK;
}

David Brownell's avatar
David Brownell committed
578
bool svf_tap_state_is_stable(tap_state_t state)
579
{
David Brownell's avatar
David Brownell committed
580
581
	return (TAP_RESET == state) || (TAP_IDLE == state)
			|| (TAP_DRPAUSE == state) || (TAP_IRPAUSE == state);
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
}

static int svf_find_string_in_array(char *str, char **strs, int num_of_element)
{
	int i;

	for (i = 0; i < num_of_element; i++)
	{
		if (!strcmp(str, strs[i]))
		{
			return i;
		}
	}
	return 0xFF;
}

zwelch's avatar
zwelch committed
598
static int svf_adjust_array_length(uint8_t **arr, int orig_bit_len, int new_bit_len)
599
600
601
602
603
604
605
606
607
608
{
	int new_byte_len = (new_bit_len + 7) >> 3;

	if ((NULL == *arr) || (((orig_bit_len + 7) >> 3) < ((new_bit_len + 7) >> 3)))
	{
		if (*arr != NULL)
		{
			free(*arr);
			*arr = NULL;
		}
zwelch's avatar
zwelch committed
609
		*arr = (uint8_t*)malloc(new_byte_len);
610
611
612
613
614
615
616
617
618
619
		if (NULL == *arr)
		{
			LOG_ERROR("not enough memory");
			return ERROR_FAIL;
		}
		memset(*arr, 0, new_byte_len);
	}
	return ERROR_OK;
}

zwelch's avatar
zwelch committed
620
static int svf_copy_hexstring_to_binary(char *str, uint8_t **bin, int orig_bit_len, int bit_len)
621
{
622
	int i, str_len = strlen(str), str_hbyte_len = (bit_len + 3) >> 2;
623
	uint8_t ch = 0;
624
625
626
627
628
629
630

	if (ERROR_OK != svf_adjust_array_length(bin, orig_bit_len, bit_len))
	{
		LOG_ERROR("fail to adjust length of array");
		return ERROR_FAIL;
	}

631
	for (i = 0; i < str_hbyte_len; i++)
632
	{
633
634
		ch = 0;
		while (str_len > 0)
635
		{
636
637
638
			ch = str[--str_len];

			if (!isblank(ch))
639
			{
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
				if ((ch >= '0') && (ch <= '9'))
				{
					ch = ch - '0';
					break;
				}
				else if ((ch >= 'A') && (ch <= 'F'))
				{
					ch = ch - 'A' + 10;
					break;
				}
				else
				{
					LOG_ERROR("invalid hex string");
					return ERROR_FAIL;
				}
655
			}
656

657
658
659
			ch = 0;
		}

660
661
		// write bin
		if (i % 2)
662
		{
663
664
			// MSB
			(*bin)[i / 2] |= ch << 4;
665
		}
666
		else
667
		{
668
669
670
			// LSB
			(*bin)[i / 2] = 0;
			(*bin)[i / 2] |= ch;
671
		}
672
	}
673

674
675
676
677
	// consume optional leading '0' characters
	while (str_len > 0 && str[str_len - 1] == '0')
		str_len--;

678
	// check valid
679
	if (str_len > 0 || (ch & ~((2 << ((bit_len - 1) % 4)) - 1)) != 0)
680
	{
681
		LOG_ERROR("value execeeds length");
682
		return ERROR_FAIL;
683
684
685
686
687
688
689
	}

	return ERROR_OK;
}

static int svf_check_tdo(void)
{
zwelch's avatar
zwelch committed
690
	int i, len, index;
691
692
693

	for (i = 0; i < svf_check_tdo_para_index; i++)
	{
zwelch's avatar
zwelch committed
694
695
		index = svf_check_tdo_para[i].buffer_offset;
		len = svf_check_tdo_para[i].bit_len;
696
		if ((svf_check_tdo_para[i].enabled)
zwelch's avatar
zwelch committed
697
			&& buf_cmp_mask(&svf_tdi_buffer[index], &svf_tdo_buffer[index], &svf_mask_buffer[index], len))
698
		{
zwelch's avatar
zwelch committed
699
700
			unsigned bitmask;
			unsigned received, expected, tapmask;
zwelch's avatar
zwelch committed
701
702
			bitmask = svf_get_mask_u32(svf_check_tdo_para[i].bit_len);

zwelch's avatar
zwelch committed
703
704
705
			memcpy(&received, svf_tdi_buffer + index, sizeof(unsigned));
			memcpy(&expected, svf_tdo_buffer + index, sizeof(unsigned));
			memcpy(&tapmask, svf_mask_buffer + index, sizeof(unsigned));
706
			LOG_ERROR("tdo check error at line %d",
zwelch's avatar
zwelch committed
707
					  svf_check_tdo_para[i].line_num);
708
709
710
			LOG_ERROR("read = 0x%X, want = 0x%X, mask = 0x%X",
					  received & bitmask,
					  expected & bitmask,
zwelch's avatar
zwelch committed
711
712
					  tapmask & bitmask);
			return ERROR_FAIL;
713
714
715
716
717
718
719
		}
	}
	svf_check_tdo_para_index = 0;

	return ERROR_OK;
}

zwelch's avatar
zwelch committed
720
static int svf_add_check_para(uint8_t enabled, int buffer_offset, int bit_len)
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
{
	if (svf_check_tdo_para_index >= SVF_CHECK_TDO_PARA_SIZE)
	{
		LOG_ERROR("toooooo many operation undone");
		return ERROR_FAIL;
	}

	svf_check_tdo_para[svf_check_tdo_para_index].line_num = svf_line_number;
	svf_check_tdo_para[svf_check_tdo_para_index].bit_len = bit_len;
	svf_check_tdo_para[svf_check_tdo_para_index].enabled = enabled;
	svf_check_tdo_para[svf_check_tdo_para_index].buffer_offset = buffer_offset;
	svf_check_tdo_para_index++;

	return ERROR_OK;
}

737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
static int svf_execute_tap(void)
{
	if (ERROR_OK != jtag_execute_queue())
	{
		return ERROR_FAIL;
	}
	else if (ERROR_OK != svf_check_tdo())
	{
		return ERROR_FAIL;
	}

	svf_buffer_index = 0;

	return ERROR_OK;
}

753
static int svf_run_command(struct command_context *cmd_ctx, char *cmd_str)
754
755
756
757
758
759
760
761
762
763
764
{
	char *argus[256], command;
	int num_of_argu = 0, i;

	// tmp variable
	int i_tmp;

	// for RUNTEST
	int run_count;
	float min_time, max_time;
	// for XXR
765
	struct svf_xxr_para *xxr_para_tmp;
zwelch's avatar
zwelch committed
766
	uint8_t **pbuffer_tmp;
767
	struct scan_field field;
768
769
770
	// for STATE
	tap_state_t *path = NULL, state;

771
772
773
774
	if (!svf_quiet)
	{
		LOG_USER("%s", svf_command_buffer);
	}
775
776
777
778
779
780

	if (ERROR_OK != svf_parse_cmd_string(cmd_str, strlen(cmd_str), argus, &num_of_argu))
	{
		return ERROR_FAIL;
	}

781
782
783
784
785
	/* NOTE: we're a bit loose here, because we ignore case in
	 * TAP state names (instead of insisting on uppercase).
	 */

	command = svf_find_string_in_array(argus[0],
786
			(char **)svf_command_name, ARRAY_SIZE(svf_command_name));
zwelch's avatar
zwelch committed
787
	switch (command)
788
789
790
791
792
793
794
795
	{
	case ENDDR:
	case ENDIR:
		if (num_of_argu != 2)
		{
			LOG_ERROR("invalid parameter of %s", argus[0]);
			return ERROR_FAIL;
		}
796
797
798

		i_tmp = tap_state_by_name(argus[1]);

799
800
801
802
803
		if (svf_tap_state_is_stable(i_tmp))
		{
			if (command == ENDIR)
			{
				svf_para.ir_end_state = i_tmp;
804
805
				LOG_DEBUG("\tIR end_state = %s",
						tap_state_name(i_tmp));
806
807
808
809
			}
			else
			{
				svf_para.dr_end_state = i_tmp;
810
811
				LOG_DEBUG("\tDR end_state = %s",
						tap_state_name(i_tmp));
812
813
814
815
			}
		}
		else
		{
816
817
			LOG_ERROR("%s: %s is not a stable state",
					argus[0], argus[1]);
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
			return ERROR_FAIL;
		}
		break;
	case FREQUENCY:
		if ((num_of_argu != 1) && (num_of_argu != 3))
		{
			LOG_ERROR("invalid parameter of %s", argus[0]);
			return ERROR_FAIL;
		}
		if (1 == num_of_argu)
		{
			// TODO: set jtag speed to full speed
			svf_para.frequency = 0;
		}
		else
		{
			if (strcmp(argus[2], "HZ"))
			{
				LOG_ERROR("HZ not found in FREQUENCY command");
				return ERROR_FAIL;
			}
839
840
841
842
			if (ERROR_OK != svf_execute_tap())
			{
				return ERROR_FAIL;
			}
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
			svf_para.frequency = atof(argus[1]);
			// TODO: set jtag speed to
			if (svf_para.frequency > 0)
			{
				command_run_linef(cmd_ctx, "jtag_khz %d", (int)svf_para.frequency / 1000);
				LOG_DEBUG("\tfrequency = %f", svf_para.frequency);
			}
		}
		break;
	case HDR:
		xxr_para_tmp = &svf_para.hdr_para;
		goto XXR_common;
	case HIR:
		xxr_para_tmp = &svf_para.hir_para;
		goto XXR_common;
	case TDR:
		xxr_para_tmp = &svf_para.tdr_para;
		goto XXR_common;
	case TIR:
		xxr_para_tmp = &svf_para.tir_para;
		goto XXR_common;
	case SDR:
		xxr_para_tmp = &svf_para.sdr_para;
		goto XXR_common;
	case SIR:
		xxr_para_tmp = &svf_para.sir_para;
		goto XXR_common;
		XXR_common:
		// XXR length [TDI (tdi)] [TDO (tdo)][MASK (mask)] [SMASK (smask)]
		if ((num_of_argu > 10) || (num_of_argu % 2))
		{
			LOG_ERROR("invalid parameter of %s", argus[0]);
			return ERROR_FAIL;
		}
		i_tmp = xxr_para_tmp->len;
		xxr_para_tmp->len = atoi(argus[1]);
		LOG_DEBUG("\tlength = %d", xxr_para_tmp->len);
		xxr_para_tmp->data_mask = 0;
		for (i = 2; i < num_of_argu; i += 2)
		{
883
			if ((strlen(argus[i + 1]) < 3) || (argus[i + 1][0] != '(') || (argus[i + 1][strlen(argus[i + 1]) - 1] != ')'))
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
			{
				LOG_ERROR("data section error");
				return ERROR_FAIL;
			}
			argus[i + 1][strlen(argus[i + 1]) - 1] = '\0';
			// TDI, TDO, MASK, SMASK
			if (!strcmp(argus[i], "TDI"))
			{
				// TDI
				pbuffer_tmp = &xxr_para_tmp->tdi;
				xxr_para_tmp->data_mask |= XXR_TDI;
			}
			else if (!strcmp(argus[i], "TDO"))
			{
				// TDO
				pbuffer_tmp = &xxr_para_tmp->tdo;
				xxr_para_tmp->data_mask |= XXR_TDO;
			}
			else if (!strcmp(argus[i], "MASK"))
			{
				// MASK
				pbuffer_tmp = &xxr_para_tmp->mask;
				xxr_para_tmp->data_mask |= XXR_MASK;
			}
			else if (!strcmp(argus[i], "SMASK"))
			{
				// SMASK
				pbuffer_tmp = &xxr_para_tmp->smask;
				xxr_para_tmp->data_mask |= XXR_SMASK;
			}
			else
			{
				LOG_ERROR("unknow parameter: %s", argus[i]);
				return ERROR_FAIL;
			}
			if (ERROR_OK != svf_copy_hexstring_to_binary(&argus[i + 1][1], pbuffer_tmp, i_tmp, xxr_para_tmp->len))
			{
				LOG_ERROR("fail to parse hex value");
				return ERROR_FAIL;
			}
zwelch's avatar
zwelch committed
924
			LOG_DEBUG("\t%s = 0x%X", argus[i], (**(int**)pbuffer_tmp) & svf_get_mask_u32(xxr_para_tmp->len));
925
		}
926
		// If a command changes the length of the last scan of the same type and the MASK parameter is absent,
927
928
929
930
931
932
933
934
935
936
937
		// the mask pattern used is all cares
		if (!(xxr_para_tmp->data_mask & XXR_MASK) && (i_tmp != xxr_para_tmp->len))
		{
			// MASK not defined and length changed
			if (ERROR_OK != svf_adjust_array_length(&xxr_para_tmp->mask, i_tmp, xxr_para_tmp->len))
			{
				LOG_ERROR("fail to adjust length of array");
				return ERROR_FAIL;
			}
			buf_set_ones(xxr_para_tmp->mask, xxr_para_tmp->len);
		}
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
		// If TDO is absent, no comparison is needed, set the mask to 0
		if (!(xxr_para_tmp->data_mask & XXR_TDO))
		{
			if (NULL == xxr_para_tmp->tdo)
			{
				if (ERROR_OK != svf_adjust_array_length(&xxr_para_tmp->tdo, i_tmp, xxr_para_tmp->len))
				{
					LOG_ERROR("fail to adjust length of array");
					return ERROR_FAIL;
				}
			}
			if (NULL == xxr_para_tmp->mask)
			{
				if (ERROR_OK != svf_adjust_array_length(&xxr_para_tmp->mask, i_tmp, xxr_para_tmp->len))
				{
					LOG_ERROR("fail to adjust length of array");
					return ERROR_FAIL;
				}
			}
			memset(xxr_para_tmp->mask, 0, (xxr_para_tmp->len + 7) >> 3);
		}
959
960
961
962
963
964
965
966
967
968
969
970
		// do scan if necessary
		if (SDR == command)
		{
			// check buffer size first, reallocate if necessary
			i = svf_para.hdr_para.len + svf_para.sdr_para.len + svf_para.tdr_para.len;
			if ((svf_buffer_size - svf_buffer_index) < ((i + 7) >> 3))
			{
#if 1
				// simply print error message
				LOG_ERROR("buffer is not enough, report to author");
				return ERROR_FAIL;
#else
zwelch's avatar
zwelch committed
971
				uint8_t *buffer_tmp;
972
973

				// reallocate buffer
zwelch's avatar
zwelch committed
974
				buffer_tmp = (uint8_t *)malloc(svf_buffer_index + ((i + 7) >> 3));
975
976
977
978
979
980
981
982
983
984
				if (NULL == buffer_tmp)
				{
					LOG_ERROR("not enough memory");
					return ERROR_FAIL;
				}
				memcpy(buffer_tmp, svf_tdi_buffer, svf_buffer_index);
				// svf_tdi_buffer isn't NULL here
				free(svf_tdi_buffer);
				svf_tdi_buffer = buffer_tmp;

zwelch's avatar
zwelch committed
985
				buffer_tmp = (uint8_t *)malloc(svf_buffer_index + ((i + 7) >> 3));
986
987
988
989
990
991
992
993
994
995
				if (NULL == buffer_tmp)
				{
					LOG_ERROR("not enough memory");
					return ERROR_FAIL;
				}
				memcpy(buffer_tmp, svf_tdo_buffer, svf_buffer_index);
				// svf_tdo_buffer isn't NULL here
				free(svf_tdo_buffer);
				svf_tdo_buffer = buffer_tmp;

zwelch's avatar
zwelch committed
996
				buffer_tmp = (uint8_t *)malloc(svf_buffer_index + ((i + 7) >> 3));
997
998
999
1000
				if (NULL == buffer_tmp)
				{
					LOG_ERROR("not enough memory");
					return ERROR_FAIL;
For faster browsing, not all history is shown. View entire blame