jtag: remove useless declarations
[openocd.git] / src / jtag / ft2232.c
1 /***************************************************************************
2 * Copyright (C) 2009 by Øyvind Harboe *
3 * Øyvind Harboe <oyvind.harboe@zylin.com> *
4 * *
5 * Copyright (C) 2009 by SoftPLC Corporation. http://softplc.com *
6 * Dick Hollenbeck <dick@softplc.com> *
7 * *
8 * Copyright (C) 2004, 2006 by Dominic Rath *
9 * Dominic.Rath@gmx.de *
10 * *
11 * Copyright (C) 2008 by Spencer Oliver *
12 * spen@spen-soft.co.uk *
13 * *
14 * This program is free software; you can redistribute it and/or modify *
15 * it under the terms of the GNU General Public License as published by *
16 * the Free Software Foundation; either version 2 of the License, or *
17 * (at your option) any later version. *
18 * *
19 * This program is distributed in the hope that it will be useful, *
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
22 * GNU General Public License for more details. *
23 * *
24 * You should have received a copy of the GNU General Public License *
25 * along with this program; if not, write to the *
26 * Free Software Foundation, Inc., *
27 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
28 ***************************************************************************/
29
30 /* This code uses information contained in the MPSSE specification which was
31 * found here:
32 * http://www.ftdichip.com/Documents/AppNotes/AN2232C-01_MPSSE_Cmnd.pdf
33 * Hereafter this is called the "MPSSE Spec".
34 *
35 * The datasheet for the ftdichip.com's FT2232D part is here:
36 * http://www.ftdichip.com/Documents/DataSheets/DS_FT2232D.pdf
37 */
38
39 #ifdef HAVE_CONFIG_H
40 #include "config.h"
41 #endif
42
43 /* project specific includes */
44 #include "interface.h"
45 #include "commands.h"
46 #include "time_support.h"
47
48 #if IS_CYGWIN == 1
49 #include <windows.h>
50 #endif
51
52 #include <assert.h>
53
54 #if (BUILD_FT2232_FTD2XX == 1 && BUILD_FT2232_LIBFTDI == 1)
55 #error "BUILD_FT2232_FTD2XX && BUILD_FT2232_LIBFTDI are mutually exclusive"
56 #elif (BUILD_FT2232_FTD2XX != 1 && BUILD_FT2232_LIBFTDI != 1)
57 #error "BUILD_FT2232_FTD2XX || BUILD_FT2232_LIBFTDI must be chosen"
58 #endif
59
60 /* FT2232 access library includes */
61 #if BUILD_FT2232_FTD2XX == 1
62 #include <ftd2xx.h>
63 #elif BUILD_FT2232_LIBFTDI == 1
64 #include <ftdi.h>
65 #endif
66
67 /* max TCK for the high speed devices 30000 kHz */
68 #define FTDI_2232H_4232H_MAX_TCK 30000
69 /* max TCK for the full speed devices 6000 kHz */
70 #define FTDI_2232C_MAX_TCK 6000
71 /* this speed value tells that RTCK is requested */
72 #define RTCK_SPEED -1
73
74 /*
75 * On my Athlon XP 1900+ EHCI host with FT2232H JTAG dongle I get read timeout
76 * errors with a retry count of 100. Increasing it solves the problem for me.
77 * - Dimitar
78 *
79 * FIXME There's likely an issue with the usb_read_timeout from libftdi.
80 * Fix that (libusb? kernel? libftdi? here?) and restore the retry count
81 * to something sane.
82 */
83 #define LIBFTDI_READ_RETRY_COUNT 2000
84
85 #ifndef BUILD_FT2232_HIGHSPEED
86 #if BUILD_FT2232_FTD2XX == 1
87 enum { FT_DEVICE_2232H = 6, FT_DEVICE_4232H };
88 #elif BUILD_FT2232_LIBFTDI == 1
89 enum { TYPE_2232H = 4, TYPE_4232H = 5 };
90 #endif
91 #endif
92
93 /**
94 * Send out \a num_cycles on the TCK line while the TAP(s) are in a
95 * stable state. Calling code must ensure that current state is stable,
96 * that verification is not done in here.
97 *
98 * @param num_cycles The number of clocks cycles to send.
99 * @param cmd The command to send.
100 *
101 * @returns ERROR_OK on success, or ERROR_JTAG_QUEUE_FAILED on failure.
102 */
103 static int ft2232_stableclocks(int num_cycles, jtag_command_t* cmd);
104
105 static char * ft2232_device_desc_A = NULL;
106 static char* ft2232_device_desc = NULL;
107 static char* ft2232_serial = NULL;
108 static char* ft2232_layout = NULL;
109 static uint8_t ft2232_latency = 2;
110 static unsigned ft2232_max_tck = FTDI_2232C_MAX_TCK;
111
112 #define MAX_USB_IDS 8
113 /* vid = pid = 0 marks the end of the list */
114 static uint16_t ft2232_vid[MAX_USB_IDS + 1] = { 0x0403, 0 };
115 static uint16_t ft2232_pid[MAX_USB_IDS + 1] = { 0x6010, 0 };
116
117 typedef struct ft2232_layout_s
118 {
119 char* name;
120 int (*init)(void);
121 void (*reset)(int trst, int srst);
122 void (*blink)(void);
123 } ft2232_layout_t;
124
125 /* init procedures for supported layouts */
126 static int usbjtag_init(void);
127 static int jtagkey_init(void);
128 static int olimex_jtag_init(void);
129 static int flyswatter_init(void);
130 static int turtle_init(void);
131 static int comstick_init(void);
132 static int stm32stick_init(void);
133 static int axm0432_jtag_init(void);
134 static int sheevaplug_init(void);
135 static int icebear_jtag_init(void);
136 static int cortino_jtag_init(void);
137 static int signalyzer_h_init(void);
138 static int ktlink_init(void);
139
140 /* reset procedures for supported layouts */
141 static void usbjtag_reset(int trst, int srst);
142 static void jtagkey_reset(int trst, int srst);
143 static void olimex_jtag_reset(int trst, int srst);
144 static void flyswatter_reset(int trst, int srst);
145 static void turtle_reset(int trst, int srst);
146 static void comstick_reset(int trst, int srst);
147 static void stm32stick_reset(int trst, int srst);
148 static void axm0432_jtag_reset(int trst, int srst);
149 static void sheevaplug_reset(int trst, int srst);
150 static void icebear_jtag_reset(int trst, int srst);
151 static void signalyzer_h_reset(int trst, int srst);
152 static void ktlink_reset(int trst, int srst);
153
154 /* blink procedures for layouts that support a blinking led */
155 static void olimex_jtag_blink(void);
156 static void flyswatter_jtag_blink(void);
157 static void turtle_jtag_blink(void);
158 static void signalyzer_h_blink(void);
159 static void ktlink_blink(void);
160
161 static const ft2232_layout_t ft2232_layouts[] =
162 {
163 { "usbjtag", usbjtag_init, usbjtag_reset, NULL },
164 { "jtagkey", jtagkey_init, jtagkey_reset, NULL },
165 { "jtagkey_prototype_v1", jtagkey_init, jtagkey_reset, NULL },
166 { "oocdlink", jtagkey_init, jtagkey_reset, NULL },
167 { "signalyzer", usbjtag_init, usbjtag_reset, NULL },
168 { "evb_lm3s811", usbjtag_init, usbjtag_reset, NULL },
169 { "luminary_icdi", usbjtag_init, usbjtag_reset, NULL },
170 { "olimex-jtag", olimex_jtag_init, olimex_jtag_reset, olimex_jtag_blink },
171 { "flyswatter", flyswatter_init, flyswatter_reset, flyswatter_jtag_blink },
172 { "turtelizer2", turtle_init, turtle_reset, turtle_jtag_blink },
173 { "comstick", comstick_init, comstick_reset, NULL },
174 { "stm32stick", stm32stick_init, stm32stick_reset, NULL },
175 { "axm0432_jtag", axm0432_jtag_init, axm0432_jtag_reset, NULL },
176 { "sheevaplug", sheevaplug_init, sheevaplug_reset, NULL },
177 { "icebear", icebear_jtag_init, icebear_jtag_reset, NULL },
178 { "cortino", cortino_jtag_init, comstick_reset, NULL },
179 { "signalyzer-h", signalyzer_h_init, signalyzer_h_reset, signalyzer_h_blink },
180 { "ktlink", ktlink_init, ktlink_reset, ktlink_blink },
181 { NULL, NULL, NULL, NULL },
182 };
183
184 static uint8_t nTRST, nTRSTnOE, nSRST, nSRSTnOE;
185
186 static const ft2232_layout_t *layout;
187 static uint8_t low_output = 0x0;
188 static uint8_t low_direction = 0x0;
189 static uint8_t high_output = 0x0;
190 static uint8_t high_direction = 0x0;
191
192 #if BUILD_FT2232_FTD2XX == 1
193 static FT_HANDLE ftdih = NULL;
194 static FT_DEVICE ftdi_device = 0;
195 #elif BUILD_FT2232_LIBFTDI == 1
196 static struct ftdi_context ftdic;
197 static enum ftdi_chip_type ftdi_device;
198 #endif
199
200 static jtag_command_t* first_unsent; /* next command that has to be sent */
201 static int require_send;
202
203 /* http://urjtag.wiki.sourceforge.net/Cable + FT2232 says:
204
205 "There is a significant difference between libftdi and libftd2xx. The latter
206 one allows to schedule up to 64*64 bytes of result data while libftdi fails
207 with more than 4*64. As a consequence, the FT2232 driver is forced to
208 perform around 16x more USB transactions for long command streams with TDO
209 capture when running with libftdi."
210
211 No idea how we get
212 #define FT2232_BUFFER_SIZE 131072
213 a comment would have been nice.
214 */
215
216 #define FT2232_BUFFER_SIZE 131072
217
218 static uint8_t* ft2232_buffer = NULL;
219 static int ft2232_buffer_size = 0;
220 static int ft2232_read_pointer = 0;
221 static int ft2232_expect_read = 0;
222
223 /**
224 * Function buffer_write
225 * writes a byte into the byte buffer, "ft2232_buffer", which must be sent later.
226 * @param val is the byte to send.
227 */
228 static inline void buffer_write(uint8_t val)
229 {
230 assert(ft2232_buffer);
231 assert((unsigned) ft2232_buffer_size < (unsigned) FT2232_BUFFER_SIZE);
232 ft2232_buffer[ft2232_buffer_size++] = val;
233 }
234
235 /**
236 * Function buffer_read
237 * returns a byte from the byte buffer.
238 */
239 static inline uint8_t buffer_read(void)
240 {
241 assert(ft2232_buffer);
242 assert(ft2232_read_pointer < ft2232_buffer_size);
243 return ft2232_buffer[ft2232_read_pointer++];
244 }
245
246 /**
247 * Clocks out \a bit_count bits on the TMS line, starting with the least
248 * significant bit of tms_bits and progressing to more significant bits.
249 * Rigorous state transition logging is done here via tap_set_state().
250 *
251 * @param mpsse_cmd One of the MPSSE TMS oriented commands such as
252 * 0x4b or 0x6b. See the MPSSE spec referenced above for their
253 * functionality. The MPSSE command "Clock Data to TMS/CS Pin (no Read)"
254 * is often used for this, 0x4b.
255 *
256 * @param tms_bits Holds the sequence of bits to send.
257 * @param tms_count Tells how many bits in the sequence.
258 * @param tdi_bit A single bit to pass on to TDI before the first TCK
259 * cycle and held static for the duration of TMS clocking.
260 *
261 * See the MPSSE spec referenced above.
262 */
263 static void clock_tms(uint8_t mpsse_cmd, int tms_bits, int tms_count, bool tdi_bit)
264 {
265 uint8_t tms_byte;
266 int i;
267 int tms_ndx; /* bit index into tms_byte */
268
269 assert(tms_count > 0);
270
271 DEBUG_JTAG_IO("mpsse cmd=%02x, tms_bits = 0x%08x, bit_count=%d",
272 mpsse_cmd, tms_bits, tms_count);
273
274 for (tms_byte = tms_ndx = i = 0; i < tms_count; ++i, tms_bits>>=1)
275 {
276 bool bit = tms_bits & 1;
277
278 if (bit)
279 tms_byte |= (1 << tms_ndx);
280
281 /* always do state transitions in public view */
282 tap_set_state(tap_state_transition(tap_get_state(), bit));
283
284 /* we wrote a bit to tms_byte just above, increment bit index. if bit was zero
285 also increment.
286 */
287 ++tms_ndx;
288
289 if (tms_ndx == 7 || i == tms_count-1)
290 {
291 buffer_write(mpsse_cmd);
292 buffer_write(tms_ndx - 1);
293
294 /* Bit 7 of the byte is passed on to TDI/DO before the first TCK/SK of
295 TMS/CS and is held static for the duration of TMS/CS clocking.
296 */
297 buffer_write(tms_byte | (tdi_bit << 7));
298 }
299 }
300 }
301
302 /**
303 * Function get_tms_buffer_requirements
304 * returns what clock_tms() will consume if called with
305 * same \a bit_count.
306 */
307 static inline int get_tms_buffer_requirements(int bit_count)
308 {
309 return ((bit_count + 6)/7) * 3;
310 }
311
312 /**
313 * Function move_to_state
314 * moves the TAP controller from the current state to a
315 * \a goal_state through a path given by tap_get_tms_path(). State transition
316 * logging is performed by delegation to clock_tms().
317 *
318 * @param goal_state is the destination state for the move.
319 */
320 static void move_to_state(tap_state_t goal_state)
321 {
322 tap_state_t start_state = tap_get_state();
323
324 /* goal_state is 1/2 of a tuple/pair of states which allow convenient
325 lookup of the required TMS pattern to move to this state from the
326 start state.
327 */
328
329 /* do the 2 lookups */
330 int tms_bits = tap_get_tms_path(start_state, goal_state);
331 int tms_count = tap_get_tms_path_len(start_state, goal_state);
332
333 DEBUG_JTAG_IO("start=%s goal=%s", tap_state_name(start_state), tap_state_name(goal_state));
334
335 clock_tms(0x4b, tms_bits, tms_count, 0);
336 }
337
338 static int ft2232_write(uint8_t* buf, int size, uint32_t* bytes_written)
339 {
340 #if BUILD_FT2232_FTD2XX == 1
341 FT_STATUS status;
342 DWORD dw_bytes_written;
343 if ((status = FT_Write(ftdih, buf, size, &dw_bytes_written)) != FT_OK)
344 {
345 *bytes_written = dw_bytes_written;
346 LOG_ERROR("FT_Write returned: %lu", status);
347 return ERROR_JTAG_DEVICE_ERROR;
348 }
349 else
350 {
351 *bytes_written = dw_bytes_written;
352 return ERROR_OK;
353 }
354 #elif BUILD_FT2232_LIBFTDI == 1
355 int retval;
356 if ((retval = ftdi_write_data(&ftdic, buf, size)) < 0)
357 {
358 *bytes_written = 0;
359 LOG_ERROR("ftdi_write_data: %s", ftdi_get_error_string(&ftdic));
360 return ERROR_JTAG_DEVICE_ERROR;
361 }
362 else
363 {
364 *bytes_written = retval;
365 return ERROR_OK;
366 }
367 #endif
368 }
369
370 static int ft2232_read(uint8_t* buf, uint32_t size, uint32_t* bytes_read)
371 {
372 #if BUILD_FT2232_FTD2XX == 1
373 DWORD dw_bytes_read;
374 FT_STATUS status;
375 int timeout = 5;
376 *bytes_read = 0;
377
378 while ((*bytes_read < size) && timeout--)
379 {
380 if ((status = FT_Read(ftdih, buf + *bytes_read, size -
381 *bytes_read, &dw_bytes_read)) != FT_OK)
382 {
383 *bytes_read = 0;
384 LOG_ERROR("FT_Read returned: %lu", status);
385 return ERROR_JTAG_DEVICE_ERROR;
386 }
387 *bytes_read += dw_bytes_read;
388 }
389
390 #elif BUILD_FT2232_LIBFTDI == 1
391 int retval;
392 int timeout = LIBFTDI_READ_RETRY_COUNT;
393 *bytes_read = 0;
394
395 while ((*bytes_read < size) && timeout--)
396 {
397 if ((retval = ftdi_read_data(&ftdic, buf + *bytes_read, size - *bytes_read)) < 0)
398 {
399 *bytes_read = 0;
400 LOG_ERROR("ftdi_read_data: %s", ftdi_get_error_string(&ftdic));
401 return ERROR_JTAG_DEVICE_ERROR;
402 }
403 *bytes_read += retval;
404 }
405
406 #endif
407
408 if (*bytes_read < size)
409 {
410 LOG_ERROR("couldn't read enough bytes from "
411 "FT2232 device (%i < %i)",
412 (unsigned)*bytes_read,
413 (unsigned)size);
414 return ERROR_JTAG_DEVICE_ERROR;
415 }
416
417 return ERROR_OK;
418 }
419
420 static bool ft2232_device_is_highspeed(void)
421 {
422 #if BUILD_FT2232_FTD2XX == 1
423 return (ftdi_device == FT_DEVICE_2232H) || (ftdi_device == FT_DEVICE_4232H);
424 #elif BUILD_FT2232_LIBFTDI == 1
425 return (ftdi_device == TYPE_2232H || ftdi_device == TYPE_4232H);
426 #endif
427 }
428
429 /*
430 * Commands that only apply to the FT2232H and FT4232H devices.
431 * See chapter 6 in http://www.ftdichip.com/Documents/AppNotes/
432 * AN_108_Command_Processor_for_MPSSE_and_MCU_Host_Bus_Emulation_Modes.pdf
433 */
434
435 static int ft2232h_ft4232h_adaptive_clocking(bool enable)
436 {
437 uint8_t buf = enable ? 0x96 : 0x97;
438 LOG_DEBUG("%2.2x", buf);
439
440 uint32_t bytes_written;
441 int retval = ft2232_write(&buf, 1, &bytes_written);
442 if ((ERROR_OK != retval) || (bytes_written != 1))
443 {
444 LOG_ERROR("couldn't write command to %s adaptive clocking"
445 , enable ? "enable" : "disable");
446 return retval;
447 }
448
449 return ERROR_OK;
450 }
451
452 /**
453 * Enable/disable the clk divide by 5 of the 60MHz master clock.
454 * This result in a JTAG clock speed range of 91.553Hz-6MHz
455 * respective 457.763Hz-30MHz.
456 */
457 static int ft2232h_ft4232h_clk_divide_by_5(bool enable)
458 {
459 uint32_t bytes_written;
460 uint8_t buf = enable ? 0x8b : 0x8a;
461 int retval = ft2232_write(&buf, 1, &bytes_written);
462 if ((ERROR_OK != retval) || (bytes_written != 1))
463 {
464 LOG_ERROR("couldn't write command to %s clk divide by 5"
465 , enable ? "enable" : "disable");
466 return ERROR_JTAG_INIT_FAILED;
467 }
468 ft2232_max_tck = enable ? FTDI_2232C_MAX_TCK : FTDI_2232H_4232H_MAX_TCK;
469 LOG_INFO("max TCK change to: %u kHz", ft2232_max_tck);
470
471 return ERROR_OK;
472 }
473
474 static int ft2232_speed(int speed)
475 {
476 uint8_t buf[3];
477 int retval;
478 uint32_t bytes_written;
479
480 retval = ERROR_OK;
481 bool enable_adaptive_clocking = (RTCK_SPEED == speed);
482 if (ft2232_device_is_highspeed())
483 retval = ft2232h_ft4232h_adaptive_clocking(enable_adaptive_clocking);
484 else if (enable_adaptive_clocking)
485 {
486 LOG_ERROR("ft2232 device %lu does not support RTCK"
487 , (long unsigned int)ftdi_device);
488 return ERROR_FAIL;
489 }
490
491 if ((enable_adaptive_clocking) || (ERROR_OK != retval))
492 return retval;
493
494 buf[0] = 0x86; /* command "set divisor" */
495 buf[1] = speed & 0xff; /* valueL (0 = 6MHz, 1 = 3MHz, 2 = 2.0MHz, ...*/
496 buf[2] = (speed >> 8) & 0xff; /* valueH */
497
498 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
499 if (((retval = ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
500 {
501 LOG_ERROR("couldn't set FT2232 TCK speed");
502 return retval;
503 }
504
505 return ERROR_OK;
506 }
507
508 static int ft2232_speed_div(int speed, int* khz)
509 {
510 /* Take a look in the FT2232 manual,
511 * AN2232C-01 Command Processor for
512 * MPSSE and MCU Host Bus. Chapter 3.8 */
513
514 *khz = (RTCK_SPEED == speed) ? 0 : ft2232_max_tck / (1 + speed);
515
516 return ERROR_OK;
517 }
518
519 static int ft2232_khz(int khz, int* jtag_speed)
520 {
521 if (khz == 0)
522 {
523 if (ft2232_device_is_highspeed())
524 {
525 *jtag_speed = RTCK_SPEED;
526 return ERROR_OK;
527 }
528 else
529 {
530 LOG_DEBUG("RCLK not supported");
531 return ERROR_FAIL;
532 }
533 }
534
535 /* Take a look in the FT2232 manual,
536 * AN2232C-01 Command Processor for
537 * MPSSE and MCU Host Bus. Chapter 3.8
538 *
539 * We will calc here with a multiplier
540 * of 10 for better rounding later. */
541
542 /* Calc speed, (ft2232_max_tck / khz) - 1 */
543 /* Use 65000 for better rounding */
544 *jtag_speed = ((ft2232_max_tck*10) / khz) - 10;
545
546 /* Add 0.9 for rounding */
547 *jtag_speed += 9;
548
549 /* Calc real speed */
550 *jtag_speed = *jtag_speed / 10;
551
552 /* Check if speed is greater than 0 */
553 if (*jtag_speed < 0)
554 {
555 *jtag_speed = 0;
556 }
557
558 /* Check max value */
559 if (*jtag_speed > 0xFFFF)
560 {
561 *jtag_speed = 0xFFFF;
562 }
563
564 return ERROR_OK;
565 }
566
567 static void ft2232_end_state(tap_state_t state)
568 {
569 if (tap_is_state_stable(state))
570 tap_set_end_state(state);
571 else
572 {
573 LOG_ERROR("BUG: %s is not a stable end state", tap_state_name(state));
574 exit(-1);
575 }
576 }
577
578 static void ft2232_read_scan(enum scan_type type, uint8_t* buffer, int scan_size)
579 {
580 int num_bytes = (scan_size + 7) / 8;
581 int bits_left = scan_size;
582 int cur_byte = 0;
583
584 while (num_bytes-- > 1)
585 {
586 buffer[cur_byte++] = buffer_read();
587 bits_left -= 8;
588 }
589
590 buffer[cur_byte] = 0x0;
591
592 /* There is one more partial byte left from the clock data in/out instructions */
593 if (bits_left > 1)
594 {
595 buffer[cur_byte] = buffer_read() >> 1;
596 }
597 /* This shift depends on the length of the clock data to tms instruction, insterted at end of the scan, now fixed to a two step transition in ft2232_add_scan */
598 buffer[cur_byte] = (buffer[cur_byte] | (((buffer_read()) << 1) & 0x80)) >> (8 - bits_left);
599 }
600
601 static void ft2232_debug_dump_buffer(void)
602 {
603 int i;
604 char line[256];
605 char* line_p = line;
606
607 for (i = 0; i < ft2232_buffer_size; i++)
608 {
609 line_p += snprintf(line_p, 256 - (line_p - line), "%2.2x ", ft2232_buffer[i]);
610 if (i % 16 == 15)
611 {
612 LOG_DEBUG("%s", line);
613 line_p = line;
614 }
615 }
616
617 if (line_p != line)
618 LOG_DEBUG("%s", line);
619 }
620
621 static int ft2232_send_and_recv(jtag_command_t* first, jtag_command_t* last)
622 {
623 jtag_command_t* cmd;
624 uint8_t* buffer;
625 int scan_size;
626 enum scan_type type;
627 int retval;
628 uint32_t bytes_written = 0;
629 uint32_t bytes_read = 0;
630
631 #ifdef _DEBUG_USB_IO_
632 struct timeval start, inter, inter2, end;
633 struct timeval d_inter, d_inter2, d_end;
634 #endif
635
636 #ifdef _DEBUG_USB_COMMS_
637 LOG_DEBUG("write buffer (size %i):", ft2232_buffer_size);
638 ft2232_debug_dump_buffer();
639 #endif
640
641 #ifdef _DEBUG_USB_IO_
642 gettimeofday(&start, NULL);
643 #endif
644
645 if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
646 {
647 LOG_ERROR("couldn't write MPSSE commands to FT2232");
648 return retval;
649 }
650
651 #ifdef _DEBUG_USB_IO_
652 gettimeofday(&inter, NULL);
653 #endif
654
655 if (ft2232_expect_read)
656 {
657 /* FIXME this "timeout" is never changed ... */
658 int timeout = LIBFTDI_READ_RETRY_COUNT;
659 ft2232_buffer_size = 0;
660
661 #ifdef _DEBUG_USB_IO_
662 gettimeofday(&inter2, NULL);
663 #endif
664
665 if ((retval = ft2232_read(ft2232_buffer, ft2232_expect_read, &bytes_read)) != ERROR_OK)
666 {
667 LOG_ERROR("couldn't read from FT2232");
668 return retval;
669 }
670
671 #ifdef _DEBUG_USB_IO_
672 gettimeofday(&end, NULL);
673
674 timeval_subtract(&d_inter, &inter, &start);
675 timeval_subtract(&d_inter2, &inter2, &start);
676 timeval_subtract(&d_end, &end, &start);
677
678 LOG_INFO("inter: %u.%06u, inter2: %u.%06u end: %u.%06u",
679 (unsigned)d_inter.tv_sec, (unsigned)d_inter.tv_usec,
680 (unsigned)d_inter2.tv_sec, (unsigned)d_inter2.tv_usec,
681 (unsigned)d_end.tv_sec, (unsigned)d_end.tv_usec);
682 #endif
683
684 ft2232_buffer_size = bytes_read;
685
686 if (ft2232_expect_read != ft2232_buffer_size)
687 {
688 LOG_ERROR("ft2232_expect_read (%i) != "
689 "ft2232_buffer_size (%i) "
690 "(%i retries)",
691 ft2232_expect_read,
692 ft2232_buffer_size,
693 LIBFTDI_READ_RETRY_COUNT - timeout);
694 ft2232_debug_dump_buffer();
695
696 exit(-1);
697 }
698
699 #ifdef _DEBUG_USB_COMMS_
700 LOG_DEBUG("read buffer (%i retries): %i bytes",
701 LIBFTDI_READ_RETRY_COUNT - timeout,
702 ft2232_buffer_size);
703 ft2232_debug_dump_buffer();
704 #endif
705 }
706
707 ft2232_expect_read = 0;
708 ft2232_read_pointer = 0;
709
710 /* return ERROR_OK, unless a jtag_read_buffer returns a failed check
711 * that wasn't handled by a caller-provided error handler
712 */
713 retval = ERROR_OK;
714
715 cmd = first;
716 while (cmd != last)
717 {
718 switch (cmd->type)
719 {
720 case JTAG_SCAN:
721 type = jtag_scan_type(cmd->cmd.scan);
722 if (type != SCAN_OUT)
723 {
724 scan_size = jtag_scan_size(cmd->cmd.scan);
725 buffer = calloc(CEIL(scan_size, 8), 1);
726 ft2232_read_scan(type, buffer, scan_size);
727 if (jtag_read_buffer(buffer, cmd->cmd.scan) != ERROR_OK)
728 retval = ERROR_JTAG_QUEUE_FAILED;
729 free(buffer);
730 }
731 break;
732
733 default:
734 break;
735 }
736
737 cmd = cmd->next;
738 }
739
740 ft2232_buffer_size = 0;
741
742 return retval;
743 }
744
745 /**
746 * Function ft2232_add_pathmove
747 * moves the TAP controller from the current state to a new state through the
748 * given path, where path is an array of tap_state_t's.
749 *
750 * @param path is an array of tap_stat_t which gives the states to traverse through
751 * ending with the last state at path[num_states-1]
752 * @param num_states is the count of state steps to move through
753 */
754 static void ft2232_add_pathmove(tap_state_t* path, int num_states)
755 {
756 int state_count = 0;
757
758 assert((unsigned) num_states <= 32u); /* tms_bits only holds 32 bits */
759
760 DEBUG_JTAG_IO("-");
761
762 /* this loop verifies that the path is legal and logs each state in the path */
763 while (num_states)
764 {
765 unsigned char tms_byte = 0; /* zero this on each MPSSE batch */
766 int bit_count = 0;
767 int num_states_batch = num_states > 7 ? 7 : num_states;
768
769 /* command "Clock Data to TMS/CS Pin (no Read)" */
770 buffer_write(0x4b);
771
772 /* number of states remaining */
773 buffer_write(num_states_batch - 1);
774
775 while (num_states_batch--) {
776 /* either TMS=0 or TMS=1 must work ... */
777 if (tap_state_transition(tap_get_state(), false)
778 == path[state_count])
779 buf_set_u32(&tms_byte, bit_count++, 1, 0x0);
780 else if (tap_state_transition(tap_get_state(), true)
781 == path[state_count])
782 buf_set_u32(&tms_byte, bit_count++, 1, 0x1);
783
784 /* ... or else the caller goofed BADLY */
785 else {
786 LOG_ERROR("BUG: %s -> %s isn't a valid "
787 "TAP state transition",
788 tap_state_name(tap_get_state()),
789 tap_state_name(path[state_count]));
790 exit(-1);
791 }
792
793 tap_set_state(path[state_count]);
794 state_count++;
795 num_states--;
796 }
797
798 buffer_write(tms_byte);
799 }
800 tap_set_end_state(tap_get_state());
801 }
802
803 static void ft2232_add_scan(bool ir_scan, enum scan_type type, uint8_t* buffer, int scan_size)
804 {
805 int num_bytes = (scan_size + 7) / 8;
806 int bits_left = scan_size;
807 int cur_byte = 0;
808 int last_bit;
809
810 if (!ir_scan)
811 {
812 if (tap_get_state() != TAP_DRSHIFT)
813 {
814 move_to_state(TAP_DRSHIFT);
815 }
816 }
817 else
818 {
819 if (tap_get_state() != TAP_IRSHIFT)
820 {
821 move_to_state(TAP_IRSHIFT);
822 }
823 }
824
825 /* add command for complete bytes */
826 while (num_bytes > 1)
827 {
828 int thisrun_bytes;
829 if (type == SCAN_IO)
830 {
831 /* Clock Data Bytes In and Out LSB First */
832 buffer_write(0x39);
833 /* LOG_DEBUG("added TDI bytes (io %i)", num_bytes); */
834 }
835 else if (type == SCAN_OUT)
836 {
837 /* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */
838 buffer_write(0x19);
839 /* LOG_DEBUG("added TDI bytes (o)"); */
840 }
841 else if (type == SCAN_IN)
842 {
843 /* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */
844 buffer_write(0x28);
845 /* LOG_DEBUG("added TDI bytes (i %i)", num_bytes); */
846 }
847
848 thisrun_bytes = (num_bytes > 65537) ? 65536 : (num_bytes - 1);
849 num_bytes -= thisrun_bytes;
850
851 buffer_write((uint8_t) (thisrun_bytes - 1));
852 buffer_write((uint8_t) ((thisrun_bytes - 1) >> 8));
853
854 if (type != SCAN_IN)
855 {
856 /* add complete bytes */
857 while (thisrun_bytes-- > 0)
858 {
859 buffer_write(buffer[cur_byte++]);
860 bits_left -= 8;
861 }
862 }
863 else /* (type == SCAN_IN) */
864 {
865 bits_left -= 8 * (thisrun_bytes);
866 }
867 }
868
869 /* the most signifcant bit is scanned during TAP movement */
870 if (type != SCAN_IN)
871 last_bit = (buffer[cur_byte] >> (bits_left - 1)) & 0x1;
872 else
873 last_bit = 0;
874
875 /* process remaining bits but the last one */
876 if (bits_left > 1)
877 {
878 if (type == SCAN_IO)
879 {
880 /* Clock Data Bits In and Out LSB First */
881 buffer_write(0x3b);
882 /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
883 }
884 else if (type == SCAN_OUT)
885 {
886 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
887 buffer_write(0x1b);
888 /* LOG_DEBUG("added TDI bits (o)"); */
889 }
890 else if (type == SCAN_IN)
891 {
892 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
893 buffer_write(0x2a);
894 /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
895 }
896
897 buffer_write(bits_left - 2);
898 if (type != SCAN_IN)
899 buffer_write(buffer[cur_byte]);
900 }
901
902 if ((ir_scan && (tap_get_end_state() == TAP_IRSHIFT))
903 || (!ir_scan && (tap_get_end_state() == TAP_DRSHIFT)))
904 {
905 if (type == SCAN_IO)
906 {
907 /* Clock Data Bits In and Out LSB First */
908 buffer_write(0x3b);
909 /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
910 }
911 else if (type == SCAN_OUT)
912 {
913 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
914 buffer_write(0x1b);
915 /* LOG_DEBUG("added TDI bits (o)"); */
916 }
917 else if (type == SCAN_IN)
918 {
919 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
920 buffer_write(0x2a);
921 /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
922 }
923 buffer_write(0x0);
924 buffer_write(last_bit);
925 }
926 else
927 {
928 int tms_bits;
929 int tms_count;
930 uint8_t mpsse_cmd;
931
932 /* move from Shift-IR/DR to end state */
933 if (type != SCAN_OUT)
934 {
935 /* We always go to the PAUSE state in two step at the end of an IN or IO scan */
936 /* This must be coordinated with the bit shifts in ft2232_read_scan */
937 tms_bits = 0x01;
938 tms_count = 2;
939 /* Clock Data to TMS/CS Pin with Read */
940 mpsse_cmd = 0x6b;
941 }
942 else
943 {
944 tms_bits = tap_get_tms_path(tap_get_state(), tap_get_end_state());
945 tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
946 /* Clock Data to TMS/CS Pin (no Read) */
947 mpsse_cmd = 0x4b;
948 }
949
950 DEBUG_JTAG_IO("finish %s", (type == SCAN_OUT) ? "without read" : "via PAUSE");
951 clock_tms(mpsse_cmd, tms_bits, tms_count, last_bit);
952 }
953
954 if (tap_get_state() != tap_get_end_state())
955 {
956 move_to_state(tap_get_end_state());
957 }
958 }
959
960 static int ft2232_large_scan(scan_command_t* cmd, enum scan_type type, uint8_t* buffer, int scan_size)
961 {
962 int num_bytes = (scan_size + 7) / 8;
963 int bits_left = scan_size;
964 int cur_byte = 0;
965 int last_bit;
966 uint8_t* receive_buffer = malloc(CEIL(scan_size, 8));
967 uint8_t* receive_pointer = receive_buffer;
968 uint32_t bytes_written;
969 uint32_t bytes_read;
970 int retval;
971 int thisrun_read = 0;
972
973 if (cmd->ir_scan)
974 {
975 LOG_ERROR("BUG: large IR scans are not supported");
976 exit(-1);
977 }
978
979 if (tap_get_state() != TAP_DRSHIFT)
980 {
981 move_to_state(TAP_DRSHIFT);
982 }
983
984 if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
985 {
986 LOG_ERROR("couldn't write MPSSE commands to FT2232");
987 exit(-1);
988 }
989 LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i",
990 ft2232_buffer_size, (int)bytes_written);
991 ft2232_buffer_size = 0;
992
993 /* add command for complete bytes */
994 while (num_bytes > 1)
995 {
996 int thisrun_bytes;
997
998 if (type == SCAN_IO)
999 {
1000 /* Clock Data Bytes In and Out LSB First */
1001 buffer_write(0x39);
1002 /* LOG_DEBUG("added TDI bytes (io %i)", num_bytes); */
1003 }
1004 else if (type == SCAN_OUT)
1005 {
1006 /* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */
1007 buffer_write(0x19);
1008 /* LOG_DEBUG("added TDI bytes (o)"); */
1009 }
1010 else if (type == SCAN_IN)
1011 {
1012 /* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */
1013 buffer_write(0x28);
1014 /* LOG_DEBUG("added TDI bytes (i %i)", num_bytes); */
1015 }
1016
1017 thisrun_bytes = (num_bytes > 65537) ? 65536 : (num_bytes - 1);
1018 thisrun_read = thisrun_bytes;
1019 num_bytes -= thisrun_bytes;
1020 buffer_write((uint8_t) (thisrun_bytes - 1));
1021 buffer_write((uint8_t) ((thisrun_bytes - 1) >> 8));
1022
1023 if (type != SCAN_IN)
1024 {
1025 /* add complete bytes */
1026 while (thisrun_bytes-- > 0)
1027 {
1028 buffer_write(buffer[cur_byte]);
1029 cur_byte++;
1030 bits_left -= 8;
1031 }
1032 }
1033 else /* (type == SCAN_IN) */
1034 {
1035 bits_left -= 8 * (thisrun_bytes);
1036 }
1037
1038 if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
1039 {
1040 LOG_ERROR("couldn't write MPSSE commands to FT2232");
1041 exit(-1);
1042 }
1043 LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i",
1044 ft2232_buffer_size,
1045 (int)bytes_written);
1046 ft2232_buffer_size = 0;
1047
1048 if (type != SCAN_OUT)
1049 {
1050 if ((retval = ft2232_read(receive_pointer, thisrun_read, &bytes_read)) != ERROR_OK)
1051 {
1052 LOG_ERROR("couldn't read from FT2232");
1053 exit(-1);
1054 }
1055 LOG_DEBUG("thisrun_read: %i, bytes_read: %i",
1056 thisrun_read,
1057 (int)bytes_read);
1058 receive_pointer += bytes_read;
1059 }
1060 }
1061
1062 thisrun_read = 0;
1063
1064 /* the most signifcant bit is scanned during TAP movement */
1065 if (type != SCAN_IN)
1066 last_bit = (buffer[cur_byte] >> (bits_left - 1)) & 0x1;
1067 else
1068 last_bit = 0;
1069
1070 /* process remaining bits but the last one */
1071 if (bits_left > 1)
1072 {
1073 if (type == SCAN_IO)
1074 {
1075 /* Clock Data Bits In and Out LSB First */
1076 buffer_write(0x3b);
1077 /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
1078 }
1079 else if (type == SCAN_OUT)
1080 {
1081 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
1082 buffer_write(0x1b);
1083 /* LOG_DEBUG("added TDI bits (o)"); */
1084 }
1085 else if (type == SCAN_IN)
1086 {
1087 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
1088 buffer_write(0x2a);
1089 /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
1090 }
1091 buffer_write(bits_left - 2);
1092 if (type != SCAN_IN)
1093 buffer_write(buffer[cur_byte]);
1094
1095 if (type != SCAN_OUT)
1096 thisrun_read += 2;
1097 }
1098
1099 if (tap_get_end_state() == TAP_DRSHIFT)
1100 {
1101 if (type == SCAN_IO)
1102 {
1103 /* Clock Data Bits In and Out LSB First */
1104 buffer_write(0x3b);
1105 /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
1106 }
1107 else if (type == SCAN_OUT)
1108 {
1109 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
1110 buffer_write(0x1b);
1111 /* LOG_DEBUG("added TDI bits (o)"); */
1112 }
1113 else if (type == SCAN_IN)
1114 {
1115 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
1116 buffer_write(0x2a);
1117 /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
1118 }
1119 buffer_write(0x0);
1120 buffer_write(last_bit);
1121 }
1122 else
1123 {
1124 int tms_bits = tap_get_tms_path(tap_get_state(), tap_get_end_state());
1125 int tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
1126 uint8_t mpsse_cmd;
1127
1128 /* move from Shift-IR/DR to end state */
1129 if (type != SCAN_OUT)
1130 {
1131 /* Clock Data to TMS/CS Pin with Read */
1132 mpsse_cmd = 0x6b;
1133 /* LOG_DEBUG("added TMS scan (read)"); */
1134 }
1135 else
1136 {
1137 /* Clock Data to TMS/CS Pin (no Read) */
1138 mpsse_cmd = 0x4b;
1139 /* LOG_DEBUG("added TMS scan (no read)"); */
1140 }
1141
1142 DEBUG_JTAG_IO("finish, %s", (type == SCAN_OUT) ? "no read" : "read");
1143 clock_tms(mpsse_cmd, tms_bits, tms_count, last_bit);
1144 }
1145
1146 if (type != SCAN_OUT)
1147 thisrun_read += 1;
1148
1149 if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
1150 {
1151 LOG_ERROR("couldn't write MPSSE commands to FT2232");
1152 exit(-1);
1153 }
1154 LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i",
1155 ft2232_buffer_size,
1156 (int)bytes_written);
1157 ft2232_buffer_size = 0;
1158
1159 if (type != SCAN_OUT)
1160 {
1161 if ((retval = ft2232_read(receive_pointer, thisrun_read, &bytes_read)) != ERROR_OK)
1162 {
1163 LOG_ERROR("couldn't read from FT2232");
1164 exit(-1);
1165 }
1166 LOG_DEBUG("thisrun_read: %i, bytes_read: %i",
1167 thisrun_read,
1168 (int)bytes_read);
1169 receive_pointer += bytes_read;
1170 }
1171
1172 return ERROR_OK;
1173 }
1174
1175 static int ft2232_predict_scan_out(int scan_size, enum scan_type type)
1176 {
1177 int predicted_size = 3;
1178 int num_bytes = (scan_size - 1) / 8;
1179
1180 if (tap_get_state() != TAP_DRSHIFT)
1181 predicted_size += get_tms_buffer_requirements(tap_get_tms_path_len(tap_get_state(), TAP_DRSHIFT));
1182
1183 if (type == SCAN_IN) /* only from device to host */
1184 {
1185 /* complete bytes */
1186 predicted_size += CEIL(num_bytes, 65536) * 3;
1187
1188 /* remaining bits - 1 (up to 7) */
1189 predicted_size += ((scan_size - 1) % 8) ? 2 : 0;
1190 }
1191 else /* host to device, or bidirectional */
1192 {
1193 /* complete bytes */
1194 predicted_size += num_bytes + CEIL(num_bytes, 65536) * 3;
1195
1196 /* remaining bits -1 (up to 7) */
1197 predicted_size += ((scan_size - 1) % 8) ? 3 : 0;
1198 }
1199
1200 return predicted_size;
1201 }
1202
1203 static int ft2232_predict_scan_in(int scan_size, enum scan_type type)
1204 {
1205 int predicted_size = 0;
1206
1207 if (type != SCAN_OUT)
1208 {
1209 /* complete bytes */
1210 predicted_size += (CEIL(scan_size, 8) > 1) ? (CEIL(scan_size, 8) - 1) : 0;
1211
1212 /* remaining bits - 1 */
1213 predicted_size += ((scan_size - 1) % 8) ? 1 : 0;
1214
1215 /* last bit (from TMS scan) */
1216 predicted_size += 1;
1217 }
1218
1219 /* LOG_DEBUG("scan_size: %i, predicted_size: %i", scan_size, predicted_size); */
1220
1221 return predicted_size;
1222 }
1223
1224 static void usbjtag_reset(int trst, int srst)
1225 {
1226 enum reset_types jtag_reset_config = jtag_get_reset_config();
1227 if (trst == 1)
1228 {
1229 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1230 low_direction |= nTRSTnOE; /* switch to output pin (output is low) */
1231 else
1232 low_output &= ~nTRST; /* switch output low */
1233 }
1234 else if (trst == 0)
1235 {
1236 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1237 low_direction &= ~nTRSTnOE; /* switch to input pin (high-Z + internal and external pullup) */
1238 else
1239 low_output |= nTRST; /* switch output high */
1240 }
1241
1242 if (srst == 1)
1243 {
1244 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
1245 low_output &= ~nSRST; /* switch output low */
1246 else
1247 low_direction |= nSRSTnOE; /* switch to output pin (output is low) */
1248 }
1249 else if (srst == 0)
1250 {
1251 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
1252 low_output |= nSRST; /* switch output high */
1253 else
1254 low_direction &= ~nSRSTnOE; /* switch to input pin (high-Z) */
1255 }
1256
1257 /* command "set data bits low byte" */
1258 buffer_write(0x80);
1259 buffer_write(low_output);
1260 buffer_write(low_direction);
1261 }
1262
1263 static void jtagkey_reset(int trst, int srst)
1264 {
1265 enum reset_types jtag_reset_config = jtag_get_reset_config();
1266 if (trst == 1)
1267 {
1268 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1269 high_output &= ~nTRSTnOE;
1270 else
1271 high_output &= ~nTRST;
1272 }
1273 else if (trst == 0)
1274 {
1275 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1276 high_output |= nTRSTnOE;
1277 else
1278 high_output |= nTRST;
1279 }
1280
1281 if (srst == 1)
1282 {
1283 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
1284 high_output &= ~nSRST;
1285 else
1286 high_output &= ~nSRSTnOE;
1287 }
1288 else if (srst == 0)
1289 {
1290 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
1291 high_output |= nSRST;
1292 else
1293 high_output |= nSRSTnOE;
1294 }
1295
1296 /* command "set data bits high byte" */
1297 buffer_write(0x82);
1298 buffer_write(high_output);
1299 buffer_write(high_direction);
1300 LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,
1301 high_direction);
1302 }
1303
1304 static void olimex_jtag_reset(int trst, int srst)
1305 {
1306 enum reset_types jtag_reset_config = jtag_get_reset_config();
1307 if (trst == 1)
1308 {
1309 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1310 high_output &= ~nTRSTnOE;
1311 else
1312 high_output &= ~nTRST;
1313 }
1314 else if (trst == 0)
1315 {
1316 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1317 high_output |= nTRSTnOE;
1318 else
1319 high_output |= nTRST;
1320 }
1321
1322 if (srst == 1)
1323 {
1324 high_output |= nSRST;
1325 }
1326 else if (srst == 0)
1327 {
1328 high_output &= ~nSRST;
1329 }
1330
1331 /* command "set data bits high byte" */
1332 buffer_write(0x82);
1333 buffer_write(high_output);
1334 buffer_write(high_direction);
1335 LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,
1336 high_direction);
1337 }
1338
1339 static void axm0432_jtag_reset(int trst, int srst)
1340 {
1341 if (trst == 1)
1342 {
1343 tap_set_state(TAP_RESET);
1344 high_output &= ~nTRST;
1345 }
1346 else if (trst == 0)
1347 {
1348 high_output |= nTRST;
1349 }
1350
1351 if (srst == 1)
1352 {
1353 high_output &= ~nSRST;
1354 }
1355 else if (srst == 0)
1356 {
1357 high_output |= nSRST;
1358 }
1359
1360 /* command "set data bits low byte" */
1361 buffer_write(0x82);
1362 buffer_write(high_output);
1363 buffer_write(high_direction);
1364 LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,
1365 high_direction);
1366 }
1367
1368 static void flyswatter_reset(int trst, int srst)
1369 {
1370 if (trst == 1)
1371 {
1372 low_output &= ~nTRST;
1373 }
1374 else if (trst == 0)
1375 {
1376 low_output |= nTRST;
1377 }
1378
1379 if (srst == 1)
1380 {
1381 low_output |= nSRST;
1382 }
1383 else if (srst == 0)
1384 {
1385 low_output &= ~nSRST;
1386 }
1387
1388 /* command "set data bits low byte" */
1389 buffer_write(0x80);
1390 buffer_write(low_output);
1391 buffer_write(low_direction);
1392 LOG_DEBUG("trst: %i, srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", trst, srst, low_output, low_direction);
1393 }
1394
1395 static void turtle_reset(int trst, int srst)
1396 {
1397 trst = trst;
1398
1399 if (srst == 1)
1400 {
1401 low_output |= nSRST;
1402 }
1403 else if (srst == 0)
1404 {
1405 low_output &= ~nSRST;
1406 }
1407
1408 /* command "set data bits low byte" */
1409 buffer_write(0x80);
1410 buffer_write(low_output);
1411 buffer_write(low_direction);
1412 LOG_DEBUG("srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", srst, low_output, low_direction);
1413 }
1414
1415 static void comstick_reset(int trst, int srst)
1416 {
1417 if (trst == 1)
1418 {
1419 high_output &= ~nTRST;
1420 }
1421 else if (trst == 0)
1422 {
1423 high_output |= nTRST;
1424 }
1425
1426 if (srst == 1)
1427 {
1428 high_output &= ~nSRST;
1429 }
1430 else if (srst == 0)
1431 {
1432 high_output |= nSRST;
1433 }
1434
1435 /* command "set data bits high byte" */
1436 buffer_write(0x82);
1437 buffer_write(high_output);
1438 buffer_write(high_direction);
1439 LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,
1440 high_direction);
1441 }
1442
1443 static void stm32stick_reset(int trst, int srst)
1444 {
1445 if (trst == 1)
1446 {
1447 high_output &= ~nTRST;
1448 }
1449 else if (trst == 0)
1450 {
1451 high_output |= nTRST;
1452 }
1453
1454 if (srst == 1)
1455 {
1456 low_output &= ~nSRST;
1457 }
1458 else if (srst == 0)
1459 {
1460 low_output |= nSRST;
1461 }
1462
1463 /* command "set data bits low byte" */
1464 buffer_write(0x80);
1465 buffer_write(low_output);
1466 buffer_write(low_direction);
1467
1468 /* command "set data bits high byte" */
1469 buffer_write(0x82);
1470 buffer_write(high_output);
1471 buffer_write(high_direction);
1472 LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,
1473 high_direction);
1474 }
1475
1476 static void sheevaplug_reset(int trst, int srst)
1477 {
1478 if (trst == 1)
1479 high_output &= ~nTRST;
1480 else if (trst == 0)
1481 high_output |= nTRST;
1482
1483 if (srst == 1)
1484 high_output &= ~nSRSTnOE;
1485 else if (srst == 0)
1486 high_output |= nSRSTnOE;
1487
1488 /* command "set data bits high byte" */
1489 buffer_write(0x82);
1490 buffer_write(high_output);
1491 buffer_write(high_direction);
1492 LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
1493 }
1494
1495 static int ft2232_execute_runtest(jtag_command_t *cmd)
1496 {
1497 int retval;
1498 int i;
1499 int predicted_size = 0;
1500 retval = ERROR_OK;
1501
1502 DEBUG_JTAG_IO("runtest %i cycles, end in %s",
1503 cmd->cmd.runtest->num_cycles,
1504 tap_state_name(cmd->cmd.runtest->end_state));
1505
1506 /* only send the maximum buffer size that FT2232C can handle */
1507 predicted_size = 0;
1508 if (tap_get_state() != TAP_IDLE)
1509 predicted_size += 3;
1510 predicted_size += 3 * CEIL(cmd->cmd.runtest->num_cycles, 7);
1511 if (cmd->cmd.runtest->end_state != TAP_IDLE)
1512 predicted_size += 3;
1513 if (tap_get_end_state() != TAP_IDLE)
1514 predicted_size += 3;
1515 if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1516 {
1517 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1518 retval = ERROR_JTAG_QUEUE_FAILED;
1519 require_send = 0;
1520 first_unsent = cmd;
1521 }
1522 if (tap_get_state() != TAP_IDLE)
1523 {
1524 move_to_state(TAP_IDLE);
1525 require_send = 1;
1526 }
1527 i = cmd->cmd.runtest->num_cycles;
1528 while (i > 0)
1529 {
1530 /* there are no state transitions in this code, so omit state tracking */
1531
1532 /* command "Clock Data to TMS/CS Pin (no Read)" */
1533 buffer_write(0x4b);
1534
1535 /* scan 7 bits */
1536 buffer_write((i > 7) ? 6 : (i - 1));
1537
1538 /* TMS data bits */
1539 buffer_write(0x0);
1540
1541 i -= (i > 7) ? 7 : i;
1542 /* LOG_DEBUG("added TMS scan (no read)"); */
1543 }
1544
1545 ft2232_end_state(cmd->cmd.runtest->end_state);
1546
1547 if (tap_get_state() != tap_get_end_state())
1548 {
1549 move_to_state(tap_get_end_state());
1550 }
1551
1552 require_send = 1;
1553 DEBUG_JTAG_IO("runtest: %i, end in %s",
1554 cmd->cmd.runtest->num_cycles,
1555 tap_state_name(tap_get_end_state()));
1556 return retval;
1557 }
1558
1559 static int ft2232_execute_statemove(jtag_command_t *cmd)
1560 {
1561 int predicted_size = 0;
1562 int retval = ERROR_OK;
1563
1564 DEBUG_JTAG_IO("statemove end in %s",
1565 tap_state_name(cmd->cmd.statemove->end_state));
1566
1567 /* only send the maximum buffer size that FT2232C can handle */
1568 predicted_size = 3;
1569 if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1570 {
1571 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1572 retval = ERROR_JTAG_QUEUE_FAILED;
1573 require_send = 0;
1574 first_unsent = cmd;
1575 }
1576 ft2232_end_state(cmd->cmd.statemove->end_state);
1577
1578 /* For TAP_RESET, ignore the current recorded state. It's often
1579 * wrong at server startup, and this transation is critical whenever
1580 * it's requested.
1581 */
1582 if (tap_get_end_state() == TAP_RESET) {
1583 clock_tms(0x4b, 0xff, 5, 0);
1584 require_send = 1;
1585
1586 /* shortest-path move to desired end state */
1587 } else if (tap_get_state() != tap_get_end_state())
1588 {
1589 move_to_state(tap_get_end_state());
1590 require_send = 1;
1591 }
1592
1593 return retval;
1594 }
1595
1596 static int ft2232_execute_pathmove(jtag_command_t *cmd)
1597 {
1598 int predicted_size = 0;
1599 int retval = ERROR_OK;
1600
1601 tap_state_t* path = cmd->cmd.pathmove->path;
1602 int num_states = cmd->cmd.pathmove->num_states;
1603
1604 DEBUG_JTAG_IO("pathmove: %i states, current: %s end: %s", num_states,
1605 tap_state_name(tap_get_state()),
1606 tap_state_name(path[num_states-1]));
1607
1608 /* only send the maximum buffer size that FT2232C can handle */
1609 predicted_size = 3 * CEIL(num_states, 7);
1610 if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1611 {
1612 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1613 retval = ERROR_JTAG_QUEUE_FAILED;
1614
1615 require_send = 0;
1616 first_unsent = cmd;
1617 }
1618
1619 ft2232_add_pathmove(path, num_states);
1620 require_send = 1;
1621
1622 return retval;
1623 }
1624
1625 static int ft2232_execute_scan(jtag_command_t *cmd)
1626 {
1627 uint8_t* buffer;
1628 int scan_size; /* size of IR or DR scan */
1629 int predicted_size = 0;
1630 int retval = ERROR_OK;
1631
1632 enum scan_type type = jtag_scan_type(cmd->cmd.scan);
1633
1634 DEBUG_JTAG_IO("%s type:%d", cmd->cmd.scan->ir_scan ? "IRSCAN" : "DRSCAN", type);
1635
1636 scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
1637
1638 predicted_size = ft2232_predict_scan_out(scan_size, type);
1639 if ((predicted_size + 1) > FT2232_BUFFER_SIZE)
1640 {
1641 LOG_DEBUG("oversized ft2232 scan (predicted_size > FT2232_BUFFER_SIZE)");
1642 /* unsent commands before this */
1643 if (first_unsent != cmd)
1644 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1645 retval = ERROR_JTAG_QUEUE_FAILED;
1646
1647 /* current command */
1648 ft2232_end_state(cmd->cmd.scan->end_state);
1649 ft2232_large_scan(cmd->cmd.scan, type, buffer, scan_size);
1650 require_send = 0;
1651 first_unsent = cmd->next;
1652 if (buffer)
1653 free(buffer);
1654 return retval;
1655 }
1656 else if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1657 {
1658 LOG_DEBUG("ft2232 buffer size reached, sending queued commands (first_unsent: %p, cmd: %p)",
1659 first_unsent,
1660 cmd);
1661 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1662 retval = ERROR_JTAG_QUEUE_FAILED;
1663 require_send = 0;
1664 first_unsent = cmd;
1665 }
1666 ft2232_expect_read += ft2232_predict_scan_in(scan_size, type);
1667 /* LOG_DEBUG("new read size: %i", ft2232_expect_read); */
1668 ft2232_end_state(cmd->cmd.scan->end_state);
1669 ft2232_add_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size);
1670 require_send = 1;
1671 if (buffer)
1672 free(buffer);
1673 DEBUG_JTAG_IO("%s scan, %i bits, end in %s",
1674 (cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size,
1675 tap_state_name(tap_get_end_state()));
1676 return retval;
1677
1678 }
1679
1680 static int ft2232_execute_reset(jtag_command_t *cmd)
1681 {
1682 int retval;
1683 int predicted_size = 0;
1684 retval = ERROR_OK;
1685
1686 DEBUG_JTAG_IO("reset trst: %i srst %i",
1687 cmd->cmd.reset->trst, cmd->cmd.reset->srst);
1688
1689 /* only send the maximum buffer size that FT2232C can handle */
1690 predicted_size = 3;
1691 if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1692 {
1693 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1694 retval = ERROR_JTAG_QUEUE_FAILED;
1695 require_send = 0;
1696 first_unsent = cmd;
1697 }
1698
1699 if ((cmd->cmd.reset->trst == 1) || (cmd->cmd.reset->srst && (jtag_get_reset_config() & RESET_SRST_PULLS_TRST)))
1700 {
1701 tap_set_state(TAP_RESET);
1702 }
1703
1704 layout->reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
1705 require_send = 1;
1706
1707 DEBUG_JTAG_IO("trst: %i, srst: %i",
1708 cmd->cmd.reset->trst, cmd->cmd.reset->srst);
1709 return retval;
1710 }
1711
1712 static int ft2232_execute_sleep(jtag_command_t *cmd)
1713 {
1714 int retval;
1715 retval = ERROR_OK;
1716
1717 DEBUG_JTAG_IO("sleep %i", cmd->cmd.sleep->us);
1718
1719 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1720 retval = ERROR_JTAG_QUEUE_FAILED;
1721 first_unsent = cmd->next;
1722 jtag_sleep(cmd->cmd.sleep->us);
1723 DEBUG_JTAG_IO("sleep %i usec while in %s",
1724 cmd->cmd.sleep->us,
1725 tap_state_name(tap_get_state()));
1726 return retval;
1727 }
1728
1729 static int ft2232_execute_stableclocks(jtag_command_t *cmd)
1730 {
1731 int retval;
1732 retval = ERROR_OK;
1733
1734 /* this is only allowed while in a stable state. A check for a stable
1735 * state was done in jtag_add_clocks()
1736 */
1737 if (ft2232_stableclocks(cmd->cmd.stableclocks->num_cycles, cmd) != ERROR_OK)
1738 retval = ERROR_JTAG_QUEUE_FAILED;
1739 DEBUG_JTAG_IO("clocks %i while in %s",
1740 cmd->cmd.stableclocks->num_cycles,
1741 tap_state_name(tap_get_state()));
1742 return retval;
1743 }
1744
1745 static int ft2232_execute_command(jtag_command_t *cmd)
1746 {
1747 int retval;
1748 retval = ERROR_OK;
1749
1750 switch (cmd->type)
1751 {
1752 case JTAG_RESET: retval = ft2232_execute_reset(cmd); break;
1753 case JTAG_RUNTEST: retval = ft2232_execute_runtest(cmd); break;
1754 case JTAG_STATEMOVE: retval = ft2232_execute_statemove(cmd); break;
1755 case JTAG_PATHMOVE: retval = ft2232_execute_pathmove(cmd); break;
1756 case JTAG_SCAN: retval = ft2232_execute_scan(cmd); break;
1757 case JTAG_SLEEP: retval = ft2232_execute_sleep(cmd); break;
1758 case JTAG_STABLECLOCKS: retval = ft2232_execute_stableclocks(cmd); break;
1759 default:
1760 LOG_ERROR("BUG: unknown JTAG command type encountered");
1761 exit(-1);
1762 }
1763 return retval;
1764 }
1765
1766 static int ft2232_execute_queue(void)
1767 {
1768 jtag_command_t* cmd = jtag_command_queue; /* currently processed command */
1769 int retval;
1770
1771 first_unsent = cmd; /* next command that has to be sent */
1772 require_send = 0;
1773
1774 /* return ERROR_OK, unless ft2232_send_and_recv reports a failed check
1775 * that wasn't handled by a caller-provided error handler
1776 */
1777 retval = ERROR_OK;
1778
1779 ft2232_buffer_size = 0;
1780 ft2232_expect_read = 0;
1781
1782 /* blink, if the current layout has that feature */
1783 if (layout->blink)
1784 layout->blink();
1785
1786 while (cmd)
1787 {
1788 if (ft2232_execute_command(cmd) != ERROR_OK)
1789 retval = ERROR_JTAG_QUEUE_FAILED;
1790 /* Start reading input before FT2232 TX buffer fills up */
1791 cmd = cmd->next;
1792 if (ft2232_expect_read > 256)
1793 {
1794 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1795 retval = ERROR_JTAG_QUEUE_FAILED;
1796 first_unsent = cmd;
1797 }
1798 }
1799
1800 if (require_send > 0)
1801 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1802 retval = ERROR_JTAG_QUEUE_FAILED;
1803
1804 return retval;
1805 }
1806
1807 #if BUILD_FT2232_FTD2XX == 1
1808 static int ft2232_init_ftd2xx(uint16_t vid, uint16_t pid, int more, int* try_more)
1809 {
1810 FT_STATUS status;
1811 DWORD deviceID;
1812 char SerialNumber[16];
1813 char Description[64];
1814 DWORD openex_flags = 0;
1815 char* openex_string = NULL;
1816 uint8_t latency_timer;
1817
1818 LOG_DEBUG("'ft2232' interface using FTD2XX with '%s' layout (%4.4x:%4.4x)", ft2232_layout, vid, pid);
1819
1820 #if IS_WIN32 == 0
1821 /* Add non-standard Vid/Pid to the linux driver */
1822 if ((status = FT_SetVIDPID(vid, pid)) != FT_OK)
1823 {
1824 LOG_WARNING("couldn't add %4.4x:%4.4x", vid, pid);
1825 }
1826 #endif
1827
1828 if (ft2232_device_desc && ft2232_serial)
1829 {
1830 LOG_WARNING("can't open by device description and serial number, giving precedence to serial");
1831 ft2232_device_desc = NULL;
1832 }
1833
1834 if (ft2232_device_desc)
1835 {
1836 openex_string = ft2232_device_desc;
1837 openex_flags = FT_OPEN_BY_DESCRIPTION;
1838 }
1839 else if (ft2232_serial)
1840 {
1841 openex_string = ft2232_serial;
1842 openex_flags = FT_OPEN_BY_SERIAL_NUMBER;
1843 }
1844 else
1845 {
1846 LOG_ERROR("neither device description nor serial number specified");
1847 LOG_ERROR("please add \"ft2232_device_desc <string>\" or \"ft2232_serial <string>\" to your .cfg file");
1848
1849 return ERROR_JTAG_INIT_FAILED;
1850 }
1851
1852 status = FT_OpenEx(openex_string, openex_flags, &ftdih);
1853 if (status != FT_OK) {
1854 /* under Win32, the FTD2XX driver appends an "A" to the end
1855 * of the description, if we tried by the desc, then
1856 * try by the alternate "A" description. */
1857 if (openex_string == ft2232_device_desc) {
1858 /* Try the alternate method. */
1859 openex_string = ft2232_device_desc_A;
1860 status = FT_OpenEx(openex_string, openex_flags, &ftdih);
1861 if (status == FT_OK) {
1862 /* yea, the "alternate" method worked! */
1863 } else {
1864 /* drat, give the user a meaningfull message.
1865 * telling the use we tried *BOTH* methods. */
1866 LOG_WARNING("Unable to open FTDI Device tried: '%s' and '%s'\n",
1867 ft2232_device_desc,
1868 ft2232_device_desc_A);
1869 }
1870 }
1871 }
1872
1873 if (status != FT_OK)
1874 {
1875 DWORD num_devices;
1876
1877 if (more)
1878 {
1879 LOG_WARNING("unable to open ftdi device (trying more): %lu", status);
1880 *try_more = 1;
1881 return ERROR_JTAG_INIT_FAILED;
1882 }
1883 LOG_ERROR("unable to open ftdi device: %lu", status);
1884 status = FT_ListDevices(&num_devices, NULL, FT_LIST_NUMBER_ONLY);
1885 if (status == FT_OK)
1886 {
1887 char** desc_array = malloc(sizeof(char*) * (num_devices + 1));
1888 uint32_t i;
1889
1890 for (i = 0; i < num_devices; i++)
1891 desc_array[i] = malloc(64);
1892
1893 desc_array[num_devices] = NULL;
1894
1895 status = FT_ListDevices(desc_array, &num_devices, FT_LIST_ALL | openex_flags);
1896
1897 if (status == FT_OK)
1898 {
1899 LOG_ERROR("ListDevices: %lu\n", num_devices);
1900 for (i = 0; i < num_devices; i++)
1901 LOG_ERROR("%" PRIu32 ": \"%s\"", i, desc_array[i]);
1902 }
1903
1904 for (i = 0; i < num_devices; i++)
1905 free(desc_array[i]);
1906
1907 free(desc_array);
1908 }
1909 else
1910 {
1911 LOG_ERROR("ListDevices: NONE\n");
1912 }
1913 return ERROR_JTAG_INIT_FAILED;
1914 }
1915
1916 if ((status = FT_SetLatencyTimer(ftdih, ft2232_latency)) != FT_OK)
1917 {
1918 LOG_ERROR("unable to set latency timer: %lu", status);
1919 return ERROR_JTAG_INIT_FAILED;
1920 }
1921
1922 if ((status = FT_GetLatencyTimer(ftdih, &latency_timer)) != FT_OK)
1923 {
1924 LOG_ERROR("unable to get latency timer: %lu", status);
1925 return ERROR_JTAG_INIT_FAILED;
1926 }
1927 else
1928 {
1929 LOG_DEBUG("current latency timer: %i", latency_timer);
1930 }
1931
1932 if ((status = FT_SetTimeouts(ftdih, 5000, 5000)) != FT_OK)
1933 {
1934 LOG_ERROR("unable to set timeouts: %lu", status);
1935 return ERROR_JTAG_INIT_FAILED;
1936 }
1937
1938 if ((status = FT_SetBitMode(ftdih, 0x0b, 2)) != FT_OK)
1939 {
1940 LOG_ERROR("unable to enable bit i/o mode: %lu", status);
1941 return ERROR_JTAG_INIT_FAILED;
1942 }
1943
1944 if ((status = FT_GetDeviceInfo(ftdih, &ftdi_device, &deviceID, SerialNumber, Description, NULL)) != FT_OK)
1945 {
1946 LOG_ERROR("unable to get FT_GetDeviceInfo: %lu", status);
1947 return ERROR_JTAG_INIT_FAILED;
1948 }
1949 else
1950 {
1951 static const char* type_str[] =
1952 {"BM", "AM", "100AX", "UNKNOWN", "2232C", "232R", "2232H", "4232H"};
1953 unsigned no_of_known_types = sizeof(type_str) / sizeof(type_str[0]) - 1;
1954 unsigned type_index = ((unsigned)ftdi_device <= no_of_known_types)
1955 ? ftdi_device : FT_DEVICE_UNKNOWN;
1956 LOG_INFO("device: %lu \"%s\"", ftdi_device, type_str[type_index]);
1957 LOG_INFO("deviceID: %lu", deviceID);
1958 LOG_INFO("SerialNumber: %s", SerialNumber);
1959 LOG_INFO("Description: %s", Description);
1960 }
1961
1962 return ERROR_OK;
1963 }
1964
1965 static int ft2232_purge_ftd2xx(void)
1966 {
1967 FT_STATUS status;
1968
1969 if ((status = FT_Purge(ftdih, FT_PURGE_RX | FT_PURGE_TX)) != FT_OK)
1970 {
1971 LOG_ERROR("error purging ftd2xx device: %lu", status);
1972 return ERROR_JTAG_INIT_FAILED;
1973 }
1974
1975 return ERROR_OK;
1976 }
1977
1978 #endif /* BUILD_FT2232_FTD2XX == 1 */
1979
1980 #if BUILD_FT2232_LIBFTDI == 1
1981 static int ft2232_init_libftdi(uint16_t vid, uint16_t pid, int more, int* try_more)
1982 {
1983 uint8_t latency_timer;
1984
1985 LOG_DEBUG("'ft2232' interface using libftdi with '%s' layout (%4.4x:%4.4x)",
1986 ft2232_layout, vid, pid);
1987
1988 if (ftdi_init(&ftdic) < 0)
1989 return ERROR_JTAG_INIT_FAILED;
1990
1991 if (ftdi_set_interface(&ftdic, INTERFACE_A) < 0)
1992 {
1993 LOG_ERROR("unable to select FT2232 channel A: %s", ftdic.error_str);
1994 return ERROR_JTAG_INIT_FAILED;
1995 }
1996
1997 /* context, vendor id, product id */
1998 if (ftdi_usb_open_desc(&ftdic, vid, pid, ft2232_device_desc,
1999 ft2232_serial) < 0)
2000 {
2001 if (more)
2002 LOG_WARNING("unable to open ftdi device (trying more): %s",
2003 ftdic.error_str);
2004 else
2005 LOG_ERROR("unable to open ftdi device: %s", ftdic.error_str);
2006 *try_more = 1;
2007 return ERROR_JTAG_INIT_FAILED;
2008 }
2009
2010 /* There is already a reset in ftdi_usb_open_desc, this should be redundant */
2011 if (ftdi_usb_reset(&ftdic) < 0)
2012 {
2013 LOG_ERROR("unable to reset ftdi device");
2014 return ERROR_JTAG_INIT_FAILED;
2015 }
2016
2017 if (ftdi_set_latency_timer(&ftdic, ft2232_latency) < 0)
2018 {
2019 LOG_ERROR("unable to set latency timer");
2020 return ERROR_JTAG_INIT_FAILED;
2021 }
2022
2023 if (ftdi_get_latency_timer(&ftdic, &latency_timer) < 0)
2024 {
2025 LOG_ERROR("unable to get latency timer");
2026 return ERROR_JTAG_INIT_FAILED;
2027 }
2028 else
2029 {
2030 LOG_DEBUG("current latency timer: %i", latency_timer);
2031 }
2032
2033 ftdi_set_bitmode(&ftdic, 0x0b, 2); /* ctx, JTAG I/O mask */
2034
2035 ftdi_device = ftdic.type;
2036 static const char* type_str[] =
2037 {"AM", "BM", "2232C", "R", "2232H", "4232H", "Unknown"};
2038 unsigned no_of_known_types = sizeof(type_str) / sizeof(type_str[0]) - 1;
2039 unsigned type_index = ((unsigned)ftdi_device < no_of_known_types)
2040 ? ftdi_device : no_of_known_types;
2041 LOG_DEBUG("FTDI chip type: %i \"%s\"", (int)ftdi_device, type_str[type_index]);
2042 return ERROR_OK;
2043 }
2044
2045 static int ft2232_purge_libftdi(void)
2046 {
2047 if (ftdi_usb_purge_buffers(&ftdic) < 0)
2048 {
2049 LOG_ERROR("ftdi_purge_buffers: %s", ftdic.error_str);
2050 return ERROR_JTAG_INIT_FAILED;
2051 }
2052
2053 return ERROR_OK;
2054 }
2055
2056 #endif /* BUILD_FT2232_LIBFTDI == 1 */
2057
2058 static int ft2232_init(void)
2059 {
2060 uint8_t buf[1];
2061 int retval;
2062 uint32_t bytes_written;
2063 const ft2232_layout_t* cur_layout = ft2232_layouts;
2064 int i;
2065
2066 if (tap_get_tms_path_len(TAP_IRPAUSE,TAP_IRPAUSE) == 7)
2067 {
2068 LOG_DEBUG("ft2232 interface using 7 step jtag state transitions");
2069 }
2070 else
2071 {
2072 LOG_DEBUG("ft2232 interface using shortest path jtag state transitions");
2073
2074 }
2075 if ((ft2232_layout == NULL) || (ft2232_layout[0] == 0))
2076 {
2077 ft2232_layout = "usbjtag";
2078 LOG_WARNING("No ft2232 layout specified, using default 'usbjtag'");
2079 }
2080
2081 while (cur_layout->name)
2082 {
2083 if (strcmp(cur_layout->name, ft2232_layout) == 0)
2084 {
2085 layout = cur_layout;
2086 break;
2087 }
2088 cur_layout++;
2089 }
2090
2091 if (!layout)
2092 {
2093 LOG_ERROR("No matching layout found for %s", ft2232_layout);
2094 return ERROR_JTAG_INIT_FAILED;
2095 }
2096
2097 for (i = 0; 1; i++)
2098 {
2099 /*
2100 * "more indicates that there are more IDs to try, so we should
2101 * not print an error for an ID mismatch (but for anything
2102 * else, we should).
2103 *
2104 * try_more indicates that the error code returned indicates an
2105 * ID mismatch (and nothing else) and that we should proceeed
2106 * with the next ID pair.
2107 */
2108 int more = ft2232_vid[i + 1] || ft2232_pid[i + 1];
2109 int try_more = 0;
2110
2111 #if BUILD_FT2232_FTD2XX == 1
2112 retval = ft2232_init_ftd2xx(ft2232_vid[i], ft2232_pid[i],
2113 more, &try_more);
2114 #elif BUILD_FT2232_LIBFTDI == 1
2115 retval = ft2232_init_libftdi(ft2232_vid[i], ft2232_pid[i],
2116 more, &try_more);
2117 #endif
2118 if (retval >= 0)
2119 break;
2120 if (!more || !try_more)
2121 return retval;
2122 }
2123
2124 ft2232_buffer_size = 0;
2125 ft2232_buffer = malloc(FT2232_BUFFER_SIZE);
2126
2127 if (layout->init() != ERROR_OK)
2128 return ERROR_JTAG_INIT_FAILED;
2129
2130 if (ft2232_device_is_highspeed())
2131 {
2132 #ifndef BUILD_FT2232_HIGHSPEED
2133 #if BUILD_FT2232_FTD2XX == 1
2134 LOG_WARNING("High Speed device found - You need a newer FTD2XX driver (version 2.04.16 or later)");
2135 #elif BUILD_FT2232_LIBFTDI == 1
2136 LOG_WARNING("High Speed device found - You need a newer libftdi version (0.16 or later)");
2137 #endif
2138 #endif
2139 /* make sure the legacy mode is disabled */
2140 if (ft2232h_ft4232h_clk_divide_by_5(false) != ERROR_OK)
2141 return ERROR_JTAG_INIT_FAILED;
2142 }
2143
2144 ft2232_speed(jtag_get_speed());
2145
2146 buf[0] = 0x85; /* Disconnect TDI/DO to TDO/DI for Loopback */
2147 if (((retval = ft2232_write(buf, 1, &bytes_written)) != ERROR_OK) || (bytes_written != 1))
2148 {
2149 LOG_ERROR("couldn't write to FT2232 to disable loopback");
2150 return ERROR_JTAG_INIT_FAILED;
2151 }
2152
2153 #if BUILD_FT2232_FTD2XX == 1
2154 return ft2232_purge_ftd2xx();
2155 #elif BUILD_FT2232_LIBFTDI == 1
2156 return ft2232_purge_libftdi();
2157 #endif
2158
2159 return ERROR_OK;
2160 }
2161
2162 static int usbjtag_init(void)
2163 {
2164 uint8_t buf[3];
2165 uint32_t bytes_written;
2166
2167 low_output = 0x08;
2168 low_direction = 0x0b;
2169
2170 if (strcmp(ft2232_layout, "usbjtag") == 0)
2171 {
2172 nTRST = 0x10;
2173 nTRSTnOE = 0x10;
2174 nSRST = 0x40;
2175 nSRSTnOE = 0x40;
2176 }
2177 else if (strcmp(ft2232_layout, "signalyzer") == 0)
2178 {
2179 nTRST = 0x10;
2180 nTRSTnOE = 0x10;
2181 nSRST = 0x20;
2182 nSRSTnOE = 0x20;
2183 }
2184 else if (strcmp(ft2232_layout, "evb_lm3s811") == 0)
2185 {
2186 nTRST = 0x0;
2187 nTRSTnOE = 0x00;
2188 nSRST = 0x20;
2189 nSRSTnOE = 0x20;
2190 low_output = 0x88;
2191 low_direction = 0x8b;
2192 }
2193 else if (strcmp(ft2232_layout, "luminary_icdi") == 0)
2194 {
2195 nTRST = 0x0;
2196 nTRSTnOE = 0x00;
2197 nSRST = 0x20;
2198 nSRSTnOE = 0x20;
2199 low_output = 0x88;
2200 low_direction = 0xcb;
2201 }
2202 else
2203 {
2204 LOG_ERROR("BUG: usbjtag_init called for unknown layout '%s'", ft2232_layout);
2205 return ERROR_JTAG_INIT_FAILED;
2206 }
2207
2208 enum reset_types jtag_reset_config = jtag_get_reset_config();
2209 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
2210 {
2211 low_direction &= ~nTRSTnOE; /* nTRST input */
2212 low_output &= ~nTRST; /* nTRST = 0 */
2213 }
2214 else
2215 {
2216 low_direction |= nTRSTnOE; /* nTRST output */
2217 low_output |= nTRST; /* nTRST = 1 */
2218 }
2219
2220 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
2221 {
2222 low_direction |= nSRSTnOE; /* nSRST output */
2223 low_output |= nSRST; /* nSRST = 1 */
2224 }
2225 else
2226 {
2227 low_direction &= ~nSRSTnOE; /* nSRST input */
2228 low_output &= ~nSRST; /* nSRST = 0 */
2229 }
2230
2231 /* initialize low byte for jtag */
2232 buf[0] = 0x80; /* command "set data bits low byte" */
2233 buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, xRST high) */
2234 buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in */
2235 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2236
2237 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2238 {
2239 LOG_ERROR("couldn't initialize FT2232 with 'USBJTAG' layout");
2240 return ERROR_JTAG_INIT_FAILED;
2241 }
2242
2243 return ERROR_OK;
2244 }
2245
2246 static int axm0432_jtag_init(void)
2247 {
2248 uint8_t buf[3];
2249 uint32_t bytes_written;
2250
2251 low_output = 0x08;
2252 low_direction = 0x2b;
2253
2254 /* initialize low byte for jtag */
2255 buf[0] = 0x80; /* command "set data bits low byte" */
2256 buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
2257 buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
2258 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2259
2260 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2261 {
2262 LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
2263 return ERROR_JTAG_INIT_FAILED;
2264 }
2265
2266 if (strcmp(layout->name, "axm0432_jtag") == 0)
2267 {
2268 nTRST = 0x08;
2269 nTRSTnOE = 0x0; /* No output enable for TRST*/
2270 nSRST = 0x04;
2271 nSRSTnOE = 0x0; /* No output enable for SRST*/
2272 }
2273 else
2274 {
2275 LOG_ERROR("BUG: axm0432_jtag_init called for non axm0432 layout");
2276 exit(-1);
2277 }
2278
2279 high_output = 0x0;
2280 high_direction = 0x0c;
2281
2282 enum reset_types jtag_reset_config = jtag_get_reset_config();
2283 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
2284 {
2285 LOG_ERROR("can't set nTRSTOE to push-pull on the Dicarlo jtag");
2286 }
2287 else
2288 {
2289 high_output |= nTRST;
2290 }
2291
2292 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
2293 {
2294 LOG_ERROR("can't set nSRST to push-pull on the Dicarlo jtag");
2295 }
2296 else
2297 {
2298 high_output |= nSRST;
2299 }
2300
2301 /* initialize high port */
2302 buf[0] = 0x82; /* command "set data bits high byte" */
2303 buf[1] = high_output; /* value */
2304 buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
2305 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2306
2307 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2308 {
2309 LOG_ERROR("couldn't initialize FT2232 with 'Dicarlo' layout");
2310 return ERROR_JTAG_INIT_FAILED;
2311 }
2312
2313 return ERROR_OK;
2314 }
2315
2316 static int jtagkey_init(void)
2317 {
2318 uint8_t buf[3];
2319 uint32_t bytes_written;
2320
2321 low_output = 0x08;
2322 low_direction = 0x1b;
2323
2324 /* initialize low byte for jtag */
2325 buf[0] = 0x80; /* command "set data bits low byte" */
2326 buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
2327 buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
2328 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2329
2330 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2331 {
2332 LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
2333 return ERROR_JTAG_INIT_FAILED;
2334 }
2335
2336 if (strcmp(layout->name, "jtagkey") == 0)
2337 {
2338 nTRST = 0x01;
2339 nTRSTnOE = 0x4;
2340 nSRST = 0x02;
2341 nSRSTnOE = 0x08;
2342 }
2343 else if ((strcmp(layout->name, "jtagkey_prototype_v1") == 0)
2344 || (strcmp(layout->name, "oocdlink") == 0))
2345 {
2346 nTRST = 0x02;
2347 nTRSTnOE = 0x1;
2348 nSRST = 0x08;
2349 nSRSTnOE = 0x04;
2350 }
2351 else
2352 {
2353 LOG_ERROR("BUG: jtagkey_init called for non jtagkey layout");
2354 exit(-1);
2355 }
2356
2357 high_output = 0x0;
2358 high_direction = 0x0f;
2359
2360 enum reset_types jtag_reset_config = jtag_get_reset_config();
2361 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
2362 {
2363 high_output |= nTRSTnOE;
2364 high_output &= ~nTRST;
2365 }
2366 else
2367 {
2368 high_output &= ~nTRSTnOE;
2369 high_output |= nTRST;
2370 }
2371
2372 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
2373 {
2374 high_output &= ~nSRSTnOE;
2375 high_output |= nSRST;
2376 }
2377 else
2378 {
2379 high_output |= nSRSTnOE;
2380 high_output &= ~nSRST;
2381 }
2382
2383 /* initialize high port */
2384 buf[0] = 0x82; /* command "set data bits high byte" */
2385 buf[1] = high_output; /* value */
2386 buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
2387 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2388
2389 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2390 {
2391 LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
2392 return ERROR_JTAG_INIT_FAILED;
2393 }
2394
2395 return ERROR_OK;
2396 }
2397
2398 static int olimex_jtag_init(void)
2399 {
2400 uint8_t buf[3];
2401 uint32_t bytes_written;
2402
2403 low_output = 0x08;
2404 low_direction = 0x1b;
2405
2406 /* initialize low byte for jtag */
2407 buf[0] = 0x80; /* command "set data bits low byte" */
2408 buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
2409 buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
2410 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2411
2412 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2413 {
2414 LOG_ERROR("couldn't initialize FT2232 with 'Olimex' layout");
2415 return ERROR_JTAG_INIT_FAILED;
2416 }
2417
2418 nTRST = 0x01;
2419 nTRSTnOE = 0x4;
2420 nSRST = 0x02;
2421 nSRSTnOE = 0x00; /* no output enable for nSRST */
2422
2423 high_output = 0x0;
2424 high_direction = 0x0f;
2425
2426 enum reset_types jtag_reset_config = jtag_get_reset_config();
2427 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
2428 {
2429 high_output |= nTRSTnOE;
2430 high_output &= ~nTRST;
2431 }
2432 else
2433 {
2434 high_output &= ~nTRSTnOE;
2435 high_output |= nTRST;
2436 }
2437
2438 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
2439 {
2440 LOG_ERROR("can't set nSRST to push-pull on the Olimex ARM-USB-OCD");
2441 }
2442 else
2443 {
2444 high_output &= ~nSRST;
2445 }
2446
2447 /* turn red LED on */
2448 high_output |= 0x08;
2449
2450 /* initialize high port */
2451 buf[0] = 0x82; /* command "set data bits high byte" */
2452 buf[1] = high_output; /* value */
2453 buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
2454 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2455
2456 if ((ft2232_write(buf, 3, &bytes_written) != ERROR_OK) || (bytes_written != 3))
2457 {
2458 LOG_ERROR("couldn't initialize FT2232 with 'Olimex' layout");
2459 return ERROR_JTAG_INIT_FAILED;
2460 }
2461
2462 return ERROR_OK;
2463 }
2464
2465 static int flyswatter_init(void)
2466 {
2467 uint8_t buf[3];
2468 uint32_t bytes_written;
2469
2470 low_output = 0x18;
2471 low_direction = 0xfb;
2472
2473 /* initialize low byte for jtag */
2474 buf[0] = 0x80; /* command "set data bits low byte" */
2475 buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
2476 buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE[12]=out, n[ST]srst = out */
2477 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2478
2479 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2480 {
2481 LOG_ERROR("couldn't initialize FT2232 with 'flyswatter' layout");
2482 return ERROR_JTAG_INIT_FAILED;
2483 }
2484
2485 nTRST = 0x10;
2486 nTRSTnOE = 0x0; /* not output enable for nTRST */
2487 nSRST = 0x20;
2488 nSRSTnOE = 0x00; /* no output enable for nSRST */
2489
2490 high_output = 0x00;
2491 high_direction = 0x0c;
2492
2493 /* turn red LED3 on, LED2 off */
2494 high_output |= 0x08;
2495
2496 /* initialize high port */
2497 buf[0] = 0x82; /* command "set data bits high byte" */
2498 buf[1] = high_output; /* value */
2499 buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
2500 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2501
2502 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2503 {
2504 LOG_ERROR("couldn't initialize FT2232 with 'flyswatter' layout");
2505 return ERROR_JTAG_INIT_FAILED;
2506 }
2507
2508 return ERROR_OK;
2509 }
2510
2511 static int turtle_init(void)
2512 {
2513 uint8_t buf[3];
2514 uint32_t bytes_written;
2515
2516 low_output = 0x08;
2517 low_direction = 0x5b;
2518
2519 /* initialize low byte for jtag */
2520 buf[0] = 0x80; /* command "set data bits low byte" */
2521 buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
2522 buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
2523 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2524
2525 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2526 {
2527 LOG_ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
2528 return ERROR_JTAG_INIT_FAILED;
2529 }
2530
2531 nSRST = 0x40;
2532
2533 high_output = 0x00;
2534 high_direction = 0x0C;
2535
2536 /* initialize high port */
2537 buf[0] = 0x82; /* command "set data bits high byte" */
2538 buf[1] = high_output;
2539 buf[2] = high_direction;
2540 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2541
2542 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2543 {
2544 LOG_ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
2545 return ERROR_JTAG_INIT_FAILED;
2546 }
2547
2548 return ERROR_OK;
2549 }
2550
2551 static int comstick_init(void)
2552 {
2553 uint8_t buf[3];
2554 uint32_t bytes_written;
2555
2556 low_output = 0x08;
2557 low_direction = 0x0b;
2558
2559 /* initialize low byte for jtag */
2560 buf[0] = 0x80; /* command "set data bits low byte" */
2561 buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
2562 buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
2563 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2564
2565 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2566 {
2567 LOG_ERROR("couldn't initialize FT2232 with 'comstick' layout");
2568 return ERROR_JTAG_INIT_FAILED;
2569 }
2570
2571 nTRST = 0x01;
2572 nTRSTnOE = 0x00; /* no output enable for nTRST */
2573 nSRST = 0x02;
2574 nSRSTnOE = 0x00; /* no output enable for nSRST */
2575
2576 high_output = 0x03;
2577 high_direction = 0x03;
2578
2579 /* initialize high port */
2580 buf[0] = 0x82; /* command "set data bits high byte" */
2581 buf[1] = high_output;
2582 buf[2] = high_direction;
2583 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2584
2585 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2586 {
2587 LOG_ERROR("couldn't initialize FT2232 with 'comstick' layout");
2588 return ERROR_JTAG_INIT_FAILED;
2589 }
2590
2591 return ERROR_OK;
2592 }
2593
2594 static int stm32stick_init(void)
2595 {
2596 uint8_t buf[3];
2597 uint32_t bytes_written;
2598
2599 low_output = 0x88;
2600 low_direction = 0x8b;
2601
2602 /* initialize low byte for jtag */
2603 buf[0] = 0x80; /* command "set data bits low byte" */
2604 buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
2605 buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
2606 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2607
2608 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2609 {
2610 LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
2611 return ERROR_JTAG_INIT_FAILED;
2612 }
2613
2614 nTRST = 0x01;
2615 nTRSTnOE = 0x00; /* no output enable for nTRST */
2616 nSRST = 0x80;
2617 nSRSTnOE = 0x00; /* no output enable for nSRST */
2618
2619 high_output = 0x01;
2620 high_direction = 0x03;
2621
2622 /* initialize high port */
2623 buf[0] = 0x82; /* command "set data bits high byte" */
2624 buf[1] = high_output;
2625 buf[2] = high_direction;
2626 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2627
2628 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2629 {
2630 LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
2631 return ERROR_JTAG_INIT_FAILED;
2632 }
2633
2634 return ERROR_OK;
2635 }
2636
2637 static int sheevaplug_init(void)
2638 {
2639 uint8_t buf[3];
2640 uint32_t bytes_written;
2641
2642 low_output = 0x08;
2643 low_direction = 0x1b;
2644
2645 /* initialize low byte for jtag */
2646 buf[0] = 0x80; /* command "set data bits low byte" */
2647 buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
2648 buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in */
2649 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2650
2651 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2652 {
2653 LOG_ERROR("couldn't initialize FT2232 with 'sheevaplug' layout");
2654 return ERROR_JTAG_INIT_FAILED;
2655 }
2656
2657 nTRSTnOE = 0x1;
2658 nTRST = 0x02;
2659 nSRSTnOE = 0x4;
2660 nSRST = 0x08;
2661
2662 high_output = 0x0;
2663 high_direction = 0x0f;
2664
2665 /* nTRST is always push-pull */
2666 high_output &= ~nTRSTnOE;
2667 high_output |= nTRST;
2668
2669 /* nSRST is always open-drain */
2670 high_output |= nSRSTnOE;
2671 high_output &= ~nSRST;
2672
2673 /* initialize high port */
2674 buf[0] = 0x82; /* command "set data bits high byte" */
2675 buf[1] = high_output; /* value */
2676 buf[2] = high_direction; /* all outputs - xRST */
2677 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2678
2679 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2680 {
2681 LOG_ERROR("couldn't initialize FT2232 with 'sheevaplug' layout");
2682 return ERROR_JTAG_INIT_FAILED;
2683 }
2684
2685 return ERROR_OK;
2686 }
2687
2688 static int cortino_jtag_init(void)
2689 {
2690 uint8_t buf[3];
2691 uint32_t bytes_written;
2692
2693 low_output = 0x08;
2694 low_direction = 0x1b;
2695
2696 /* initialize low byte for jtag */
2697 buf[0] = 0x80; /* command "set data bits low byte" */
2698 buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
2699 buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
2700 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2701
2702 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2703 {
2704 LOG_ERROR("couldn't initialize FT2232 with 'cortino' layout");
2705 return ERROR_JTAG_INIT_FAILED;
2706 }
2707
2708 nTRST = 0x01;
2709 nTRSTnOE = 0x00; /* no output enable for nTRST */
2710 nSRST = 0x02;
2711 nSRSTnOE = 0x00; /* no output enable for nSRST */
2712
2713 high_output = 0x03;
2714 high_direction = 0x03;
2715
2716 /* initialize high port */
2717 buf[0] = 0x82; /* command "set data bits high byte" */
2718 buf[1] = high_output;
2719 buf[2] = high_direction;
2720 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2721
2722 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2723 {
2724 LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
2725 return ERROR_JTAG_INIT_FAILED;
2726 }
2727
2728 return ERROR_OK;
2729 }
2730
2731 static void olimex_jtag_blink(void)
2732 {
2733 /* Olimex ARM-USB-OCD has a LED connected to ACBUS3
2734 * ACBUS3 is bit 3 of the GPIOH port
2735 */
2736 if (high_output & 0x08)
2737 {
2738 /* set port pin high */
2739 high_output &= 0x07;
2740 }
2741 else
2742 {
2743 /* set port pin low */
2744 high_output |= 0x08;
2745 }
2746
2747 buffer_write(0x82);
2748 buffer_write(high_output);
2749 buffer_write(high_direction);
2750 }
2751
2752 static void flyswatter_jtag_blink(void)
2753 {
2754 /*
2755 * Flyswatter has two LEDs connected to ACBUS2 and ACBUS3
2756 */
2757 high_output ^= 0x0c;
2758
2759 buffer_write(0x82);
2760 buffer_write(high_output);
2761 buffer_write(high_direction);
2762 }
2763
2764 static void turtle_jtag_blink(void)
2765 {
2766 /*
2767 * Turtelizer2 has two LEDs connected to ACBUS2 and ACBUS3
2768 */
2769 if (high_output & 0x08)
2770 {
2771 high_output = 0x04;
2772 }
2773 else
2774 {
2775 high_output = 0x08;
2776 }
2777
2778 buffer_write(0x82);
2779 buffer_write(high_output);
2780 buffer_write(high_direction);
2781 }
2782
2783 static int ft2232_quit(void)
2784 {
2785 #if BUILD_FT2232_FTD2XX == 1
2786 FT_STATUS status;
2787
2788 status = FT_Close(ftdih);
2789 #elif BUILD_FT2232_LIBFTDI == 1
2790 ftdi_usb_close(&ftdic);
2791
2792 ftdi_deinit(&ftdic);
2793 #endif
2794
2795 free(ft2232_buffer);
2796 ft2232_buffer = NULL;
2797
2798 return ERROR_OK;
2799 }
2800
2801 static int ft2232_handle_device_desc_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc)
2802 {
2803 char *cp;
2804 char buf[200];
2805 if (argc == 1)
2806 {
2807 ft2232_device_desc = strdup(args[0]);
2808 cp = strchr(ft2232_device_desc, 0);
2809 /* under Win32, the FTD2XX driver appends an "A" to the end
2810 * of the description, this examines the given desc
2811 * and creates the 'missing' _A or non_A variable. */
2812 if ((cp[-1] == 'A') && (cp[-2]==' ')) {
2813 /* it was, so make this the "A" version. */
2814 ft2232_device_desc_A = ft2232_device_desc;
2815 /* and *CREATE* the non-A version. */
2816 strcpy(buf, ft2232_device_desc);
2817 cp = strchr(buf, 0);
2818 cp[-2] = 0;
2819 ft2232_device_desc = strdup(buf);
2820 } else {
2821 /* <space > A not defined
2822 * so create it */
2823 sprintf(buf, "%s A", ft2232_device_desc);
2824 ft2232_device_desc_A = strdup(buf);
2825 }
2826 }
2827 else
2828 {
2829 LOG_ERROR("expected exactly one argument to ft2232_device_desc <description>");
2830 }
2831
2832 return ERROR_OK;
2833 }
2834
2835 static int ft2232_handle_serial_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc)
2836 {
2837 if (argc == 1)
2838 {
2839 ft2232_serial = strdup(args[0]);
2840 }
2841 else
2842 {
2843 LOG_ERROR("expected exactly one argument to ft2232_serial <serial-number>");
2844 }
2845
2846 return ERROR_OK;
2847 }
2848
2849 static int ft2232_handle_layout_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc)
2850 {
2851 if (argc == 0)
2852 return ERROR_OK;
2853
2854 ft2232_layout = malloc(strlen(args[0]) + 1);
2855 strcpy(ft2232_layout, args[0]);
2856
2857 return ERROR_OK;
2858 }
2859
2860 static int ft2232_handle_vid_pid_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc)
2861 {
2862 if (argc > MAX_USB_IDS * 2)
2863 {
2864 LOG_WARNING("ignoring extra IDs in ft2232_vid_pid "
2865 "(maximum is %d pairs)", MAX_USB_IDS);
2866 argc = MAX_USB_IDS * 2;
2867 }
2868 if (argc < 2 || (argc & 1))
2869 {
2870 LOG_WARNING("incomplete ft2232_vid_pid configuration directive");
2871 if (argc < 2)
2872 return ERROR_COMMAND_SYNTAX_ERROR;
2873 /* remove the incomplete trailing id */
2874 argc -= 1;
2875 }
2876
2877 int i;
2878 int retval = ERROR_OK;
2879 for (i = 0; i < argc; i += 2)
2880 {
2881 COMMAND_PARSE_NUMBER(u16, args[i], ft2232_vid[i >> 1]);
2882 COMMAND_PARSE_NUMBER(u16, args[i + 1], ft2232_pid[i >> 1]);
2883 }
2884
2885 /*
2886 * Explicitly terminate, in case there are multiples instances of
2887 * ft2232_vid_pid.
2888 */
2889 ft2232_vid[i >> 1] = ft2232_pid[i >> 1] = 0;
2890
2891 return retval;
2892 }
2893
2894 static int ft2232_handle_latency_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc)
2895 {
2896 if (argc == 1)
2897 {
2898 ft2232_latency = atoi(args[0]);
2899 }
2900 else
2901 {
2902 LOG_ERROR("expected exactly one argument to ft2232_latency <ms>");
2903 }
2904
2905 return ERROR_OK;
2906 }
2907
2908 static int ft2232_stableclocks(int num_cycles, jtag_command_t* cmd)
2909 {
2910 int retval = 0;
2911
2912 /* 7 bits of either ones or zeros. */
2913 uint8_t tms = (tap_get_state() == TAP_RESET ? 0x7F : 0x00);
2914
2915 while (num_cycles > 0)
2916 {
2917 /* the command 0x4b, "Clock Data to TMS/CS Pin (no Read)" handles
2918 * at most 7 bits per invocation. Here we invoke it potentially
2919 * several times.
2920 */
2921 int bitcount_per_command = (num_cycles > 7) ? 7 : num_cycles;
2922
2923 if (ft2232_buffer_size + 3 >= FT2232_BUFFER_SIZE)
2924 {
2925 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
2926 retval = ERROR_JTAG_QUEUE_FAILED;
2927
2928 first_unsent = cmd;
2929 }
2930
2931 /* there are no state transitions in this code, so omit state tracking */
2932
2933 /* command "Clock Data to TMS/CS Pin (no Read)" */
2934 buffer_write(0x4b);
2935
2936 /* scan 7 bit */
2937 buffer_write(bitcount_per_command - 1);
2938
2939 /* TMS data bits are either all zeros or ones to stay in the current stable state */
2940 buffer_write(tms);
2941
2942 require_send = 1;
2943
2944 num_cycles -= bitcount_per_command;
2945 }
2946
2947 return retval;
2948 }
2949
2950 /* ---------------------------------------------------------------------
2951 * Support for IceBear JTAG adapter from Section5:
2952 * http://section5.ch/icebear
2953 *
2954 * Author: Sten, debian@sansys-electronic.com
2955 */
2956
2957 /* Icebear pin layout
2958 *
2959 * ADBUS5 (nEMU) nSRST | 2 1| GND (10k->VCC)
2960 * GND GND | 4 3| n.c.
2961 * ADBUS3 TMS | 6 5| ADBUS6 VCC
2962 * ADBUS0 TCK | 8 7| ADBUS7 (GND)
2963 * ADBUS4 nTRST |10 9| ACBUS0 (GND)
2964 * ADBUS1 TDI |12 11| ACBUS1 (GND)
2965 * ADBUS2 TDO |14 13| GND GND
2966 *
2967 * ADBUS0 O L TCK ACBUS0 GND
2968 * ADBUS1 O L TDI ACBUS1 GND
2969 * ADBUS2 I TDO ACBUS2 n.c.
2970 * ADBUS3 O H TMS ACBUS3 n.c.
2971 * ADBUS4 O H nTRST
2972 * ADBUS5 O H nSRST
2973 * ADBUS6 - VCC
2974 * ADBUS7 - GND
2975 */
2976 static int icebear_jtag_init(void) {
2977 uint8_t buf[3];
2978 uint32_t bytes_written;
2979
2980 low_direction = 0x0b; /* output: TCK TDI TMS; input: TDO */
2981 low_output = 0x08; /* high: TMS; low: TCK TDI */
2982 nTRST = 0x10;
2983 nSRST = 0x20;
2984
2985 enum reset_types jtag_reset_config = jtag_get_reset_config();
2986 if ((jtag_reset_config & RESET_TRST_OPEN_DRAIN) != 0) {
2987 low_direction &= ~nTRST; /* nTRST high impedance */
2988 }
2989 else {
2990 low_direction |= nTRST;
2991 low_output |= nTRST;
2992 }
2993
2994 low_direction |= nSRST;
2995 low_output |= nSRST;
2996
2997 /* initialize low byte for jtag */
2998 buf[0] = 0x80; /* command "set data bits low byte" */
2999 buf[1] = low_output;
3000 buf[2] = low_direction;
3001 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
3002
3003 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) {
3004 LOG_ERROR("couldn't initialize FT2232 with 'IceBear' layout (low)");
3005 return ERROR_JTAG_INIT_FAILED;
3006 }
3007
3008 high_output = 0x0;
3009 high_direction = 0x00;
3010
3011
3012 /* initialize high port */
3013 buf[0] = 0x82; /* command "set data bits high byte" */
3014 buf[1] = high_output; /* value */
3015 buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
3016 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
3017
3018 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) {
3019 LOG_ERROR("couldn't initialize FT2232 with 'IceBear' layout (high)");
3020 return ERROR_JTAG_INIT_FAILED;
3021 }
3022
3023 return ERROR_OK;
3024 }
3025
3026 static void icebear_jtag_reset(int trst, int srst) {
3027
3028 if (trst == 1) {
3029 low_direction |= nTRST;
3030 low_output &= ~nTRST;
3031 }
3032 else if (trst == 0) {
3033 enum reset_types jtag_reset_config = jtag_get_reset_config();
3034 if ((jtag_reset_config & RESET_TRST_OPEN_DRAIN) != 0)
3035 low_direction &= ~nTRST;
3036 else
3037 low_output |= nTRST;
3038 }
3039
3040 if (srst == 1) {
3041 low_output &= ~nSRST;
3042 }
3043 else if (srst == 0) {
3044 low_output |= nSRST;
3045 }
3046
3047 /* command "set data bits low byte" */
3048 buffer_write(0x80);
3049 buffer_write(low_output);
3050 buffer_write(low_direction);
3051
3052 LOG_DEBUG("trst: %i, srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", trst, srst, low_output, low_direction);
3053 }
3054
3055 /* ---------------------------------------------------------------------
3056 * Support for Signalyzer H2 and Signalyzer H4
3057 * JTAG adapter from Xverve Technologies Inc.
3058 * http://www.signalyzer.com or http://www.xverve.com
3059 *
3060 * Author: Oleg Seiljus, oleg@signalyzer.com
3061 */
3062 static unsigned char signalyzer_h_side;
3063 static unsigned int signalyzer_h_adapter_type;
3064
3065 static int signalyzer_h_ctrl_write(int address, unsigned short value);
3066
3067 #if BUILD_FT2232_FTD2XX == 1
3068 static int signalyzer_h_ctrl_read(int address, unsigned short *value);
3069 #endif
3070
3071 #define SIGNALYZER_COMMAND_ADDR 128
3072 #define SIGNALYZER_DATA_BUFFER_ADDR 129
3073
3074 #define SIGNALYZER_COMMAND_VERSION 0x41
3075 #define SIGNALYZER_COMMAND_RESET 0x42
3076 #define SIGNALYZER_COMMAND_POWERCONTROL_GET 0x50
3077 #define SIGNALYZER_COMMAND_POWERCONTROL_SET 0x51
3078 #define SIGNALYZER_COMMAND_PWM_SET 0x52
3079 #define SIGNALYZER_COMMAND_LED_SET 0x53
3080 #define SIGNALYZER_COMMAND_ADC 0x54
3081 #define SIGNALYZER_COMMAND_GPIO_STATE 0x55
3082 #define SIGNALYZER_COMMAND_GPIO_MODE 0x56
3083 #define SIGNALYZER_COMMAND_GPIO_PORT 0x57
3084 #define SIGNALYZER_COMMAND_I2C 0x58
3085
3086 #define SIGNALYZER_CHAN_A 1
3087 #define SIGNALYZER_CHAN_B 2
3088 /* LEDS use channel C */
3089 #define SIGNALYZER_CHAN_C 4
3090
3091 #define SIGNALYZER_LED_GREEN 1
3092 #define SIGNALYZER_LED_RED 2
3093
3094 #define SIGNALYZER_MODULE_TYPE_EM_LT16_A 0x0301
3095 #define SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG 0x0302
3096 #define SIGNALYZER_MODULE_TYPE_EM_JTAG 0x0303
3097 #define SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG_P 0x0304
3098 #define SIGNALYZER_MODULE_TYPE_EM_JTAG_P 0x0305
3099
3100
3101 static int signalyzer_h_ctrl_write(int address, unsigned short value)
3102 {
3103 #if BUILD_FT2232_FTD2XX == 1
3104 return FT_WriteEE(ftdih, address, value);
3105 #elif BUILD_FT2232_LIBFTDI == 1
3106 return 0;
3107 #endif
3108 }
3109
3110 #if BUILD_FT2232_FTD2XX == 1
3111 static int signalyzer_h_ctrl_read(int address, unsigned short *value)
3112 {
3113 return FT_ReadEE(ftdih, address, value);
3114 }
3115 #endif
3116
3117 static int signalyzer_h_led_set(unsigned char channel, unsigned char led,
3118 int on_time_ms, int off_time_ms, unsigned char cycles)
3119 {
3120 unsigned char on_time;
3121 unsigned char off_time;
3122
3123 if (on_time_ms < 0xFFFF)
3124 on_time = (unsigned char)(on_time_ms / 62);
3125 else
3126 on_time = 0xFF;
3127
3128 off_time = (unsigned char)(off_time_ms / 62);
3129
3130 #if BUILD_FT2232_FTD2XX == 1
3131 FT_STATUS status;
3132
3133 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
3134 ((uint32_t)(channel << 8) | led))) != FT_OK)
3135 {
3136 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3137 return ERROR_JTAG_DEVICE_ERROR;
3138 }
3139
3140 if ((status = signalyzer_h_ctrl_write(
3141 (SIGNALYZER_DATA_BUFFER_ADDR + 1),
3142 ((uint32_t)(on_time << 8) | off_time))) != FT_OK)
3143 {
3144 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3145 return ERROR_JTAG_DEVICE_ERROR;
3146 }
3147
3148 if ((status = signalyzer_h_ctrl_write(
3149 (SIGNALYZER_DATA_BUFFER_ADDR + 2),
3150 ((uint32_t)cycles))) != FT_OK)
3151 {
3152 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3153 return ERROR_JTAG_DEVICE_ERROR;
3154 }
3155
3156 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
3157 SIGNALYZER_COMMAND_LED_SET)) != FT_OK)
3158 {
3159 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3160 return ERROR_JTAG_DEVICE_ERROR;
3161 }
3162
3163 return ERROR_OK;
3164 #elif BUILD_FT2232_LIBFTDI == 1
3165 int retval;
3166
3167 if ((retval = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
3168 ((uint32_t)(channel << 8) | led))) < 0)
3169 {
3170 LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
3171 ftdi_get_error_string(&ftdic));
3172 return ERROR_JTAG_DEVICE_ERROR;
3173 }
3174
3175 if ((retval = signalyzer_h_ctrl_write(
3176 (SIGNALYZER_DATA_BUFFER_ADDR + 1),
3177 ((uint32_t)(on_time << 8) | off_time))) < 0)
3178 {
3179 LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
3180 ftdi_get_error_string(&ftdic));
3181 return ERROR_JTAG_DEVICE_ERROR;
3182 }
3183
3184 if ((retval = signalyzer_h_ctrl_write(
3185 (SIGNALYZER_DATA_BUFFER_ADDR + 2),
3186 (uint32_t)cycles)) < 0)
3187 {
3188 LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
3189 ftdi_get_error_string(&ftdic));
3190 return ERROR_JTAG_DEVICE_ERROR;
3191 }
3192
3193 if ((retval = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
3194 SIGNALYZER_COMMAND_LED_SET)) < 0)
3195 {
3196 LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
3197 ftdi_get_error_string(&ftdic));
3198 return ERROR_JTAG_DEVICE_ERROR;
3199 }
3200
3201 return ERROR_OK;
3202 #endif
3203 }
3204
3205 static int signalyzer_h_init(void)
3206 {
3207 #if BUILD_FT2232_FTD2XX == 1
3208 FT_STATUS status;
3209 int i;
3210 #endif
3211
3212 char *end_of_desc;
3213
3214 uint16_t read_buf[12] = { 0 };
3215 uint8_t buf[3];
3216 uint32_t bytes_written;
3217
3218 /* turn on center green led */
3219 signalyzer_h_led_set(SIGNALYZER_CHAN_C, SIGNALYZER_LED_GREEN,
3220 0xFFFF, 0x00, 0x00);
3221
3222 /* determine what channel config wants to open
3223 * TODO: change me... current implementation is made to work
3224 * with openocd description parsing.
3225 */
3226 end_of_desc = strrchr(ft2232_device_desc, 0x00);
3227
3228 if (end_of_desc)
3229 {
3230 signalyzer_h_side = *(end_of_desc - 1);
3231 if (signalyzer_h_side == 'B')
3232 signalyzer_h_side = SIGNALYZER_CHAN_B;
3233 else
3234 signalyzer_h_side = SIGNALYZER_CHAN_A;
3235 }
3236 else
3237 {
3238 LOG_ERROR("No Channel was specified");
3239 return ERROR_FAIL;
3240 }
3241
3242 signalyzer_h_led_set(signalyzer_h_side, SIGNALYZER_LED_GREEN,
3243 1000, 1000, 0xFF);
3244
3245 #if BUILD_FT2232_FTD2XX == 1
3246 /* read signalyzer versionining information */
3247 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
3248 SIGNALYZER_COMMAND_VERSION)) != FT_OK)
3249 {
3250 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3251 return ERROR_JTAG_DEVICE_ERROR;
3252 }
3253
3254 for (i = 0; i < 10; i++)
3255 {
3256 if ((status = signalyzer_h_ctrl_read(
3257 (SIGNALYZER_DATA_BUFFER_ADDR + i),
3258 &read_buf[i])) != FT_OK)
3259 {
3260 LOG_ERROR("signalyzer_h_ctrl_read returned: %lu",
3261 status);
3262 return ERROR_JTAG_DEVICE_ERROR;
3263 }
3264 }
3265
3266 LOG_INFO("Signalyzer: ID info: { %.4x %.4x %.4x %.4x %.4x %.4x %.4x }",
3267 read_buf[0], read_buf[1], read_buf[2], read_buf[3],
3268 read_buf[4], read_buf[5], read_buf[6]);
3269
3270 /* set gpio register */
3271 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
3272 (uint32_t)(signalyzer_h_side << 8))) != FT_OK)
3273 {
3274 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3275 return ERROR_JTAG_DEVICE_ERROR;
3276 }
3277
3278 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR + 1,
3279 0x0404)) != FT_OK)