1 /***************************************************************************
2 * Copyright (C) 2009 by Øyvind Harboe *
3 * Øyvind Harboe <oyvind.harboe@zylin.com> *
5 * Copyright (C) 2009 by SoftPLC Corporation. http://softplc.com *
6 * Dick Hollenbeck <dick@softplc.com> *
8 * Copyright (C) 2004, 2006 by Dominic Rath *
9 * Dominic.Rath@gmx.de *
11 * Copyright (C) 2008 by Spencer Oliver *
12 * spen@spen-soft.co.uk *
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. *
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. *
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 ***************************************************************************/
30 /* This code uses information contained in the MPSSE specification which was
32 * http://www.ftdichip.com/Documents/AppNotes/AN2232C-01_MPSSE_Cmnd.pdf
33 * Hereafter this is called the "MPSSE Spec".
35 * The datasheet for the ftdichip.com's FT2232D part is here:
36 * http://www.ftdichip.com/Documents/DataSheets/DS_FT2232D.pdf
43 /* project specific includes */
44 #include "interface.h"
46 #include "time_support.h"
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"
60 /* FT2232 access library includes */
61 #if BUILD_FT2232_FTD2XX == 1
63 #elif BUILD_FT2232_LIBFTDI == 1
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 */
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.
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
83 #define LIBFTDI_READ_RETRY_COUNT 2000
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 };
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.
98 * @param num_cycles The number of clocks cycles to send.
99 * @param cmd The command to send.
101 * @returns ERROR_OK on success, or ERROR_JTAG_QUEUE_FAILED on failure.
103 static int ft2232_stableclocks(int num_cycles, jtag_command_t* cmd);
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;
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 };
117 typedef struct ft2232_layout_s
121 void (*reset)(int trst, int srst);
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);
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);
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);
161 static const ft2232_layout_t ft2232_layouts[] =
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 },
184 static uint8_t nTRST, nTRSTnOE, nSRST, nSRSTnOE;
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;
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;
200 static jtag_command_t* first_unsent; /* next command that has to be sent */
201 static int require_send;
203 /* http://urjtag.wiki.sourceforge.net/Cable + FT2232 says:
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."
212 #define FT2232_BUFFER_SIZE 131072
213 a comment would have been nice.
216 #define FT2232_BUFFER_SIZE 131072
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;
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.
228 static inline void buffer_write(uint8_t val)
230 assert(ft2232_buffer);
231 assert((unsigned) ft2232_buffer_size < (unsigned) FT2232_BUFFER_SIZE);
232 ft2232_buffer[ft2232_buffer_size++] = val;
236 * Function buffer_read
237 * returns a byte from the byte buffer.
239 static inline uint8_t buffer_read(void)
241 assert(ft2232_buffer);
242 assert(ft2232_read_pointer < ft2232_buffer_size);
243 return ft2232_buffer[ft2232_read_pointer++];
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().
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.
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.
261 * See the MPSSE spec referenced above.
263 static void clock_tms(uint8_t mpsse_cmd, int tms_bits, int tms_count, bool tdi_bit)
267 int tms_ndx; /* bit index into tms_byte */
269 assert(tms_count > 0);
271 DEBUG_JTAG_IO("mpsse cmd=%02x, tms_bits = 0x%08x, bit_count=%d",
272 mpsse_cmd, tms_bits, tms_count);
274 for (tms_byte = tms_ndx = i = 0; i < tms_count; ++i, tms_bits>>=1)
276 bool bit = tms_bits & 1;
279 tms_byte |= (1 << tms_ndx);
281 /* always do state transitions in public view */
282 tap_set_state(tap_state_transition(tap_get_state(), bit));
284 /* we wrote a bit to tms_byte just above, increment bit index. if bit was zero
289 if (tms_ndx == 7 || i == tms_count-1)
291 buffer_write(mpsse_cmd);
292 buffer_write(tms_ndx - 1);
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.
297 buffer_write(tms_byte | (tdi_bit << 7));
303 * Function get_tms_buffer_requirements
304 * returns what clock_tms() will consume if called with
307 static inline int get_tms_buffer_requirements(int bit_count)
309 return ((bit_count + 6)/7) * 3;
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().
318 * @param goal_state is the destination state for the move.
320 static void move_to_state(tap_state_t goal_state)
322 tap_state_t start_state = tap_get_state();
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
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);
333 DEBUG_JTAG_IO("start=%s goal=%s", tap_state_name(start_state), tap_state_name(goal_state));
335 clock_tms(0x4b, tms_bits, tms_count, 0);
338 static int ft2232_write(uint8_t* buf, int size, uint32_t* bytes_written)
340 #if BUILD_FT2232_FTD2XX == 1
342 DWORD dw_bytes_written;
343 if ((status = FT_Write(ftdih, buf, size, &dw_bytes_written)) != FT_OK)
345 *bytes_written = dw_bytes_written;
346 LOG_ERROR("FT_Write returned: %lu", status);
347 return ERROR_JTAG_DEVICE_ERROR;
351 *bytes_written = dw_bytes_written;
354 #elif BUILD_FT2232_LIBFTDI == 1
356 if ((retval = ftdi_write_data(&ftdic, buf, size)) < 0)
359 LOG_ERROR("ftdi_write_data: %s", ftdi_get_error_string(&ftdic));
360 return ERROR_JTAG_DEVICE_ERROR;
364 *bytes_written = retval;
370 static int ft2232_read(uint8_t* buf, uint32_t size, uint32_t* bytes_read)
372 #if BUILD_FT2232_FTD2XX == 1
378 while ((*bytes_read < size) && timeout--)
380 if ((status = FT_Read(ftdih, buf + *bytes_read, size -
381 *bytes_read, &dw_bytes_read)) != FT_OK)
384 LOG_ERROR("FT_Read returned: %lu", status);
385 return ERROR_JTAG_DEVICE_ERROR;
387 *bytes_read += dw_bytes_read;
390 #elif BUILD_FT2232_LIBFTDI == 1
392 int timeout = LIBFTDI_READ_RETRY_COUNT;
395 while ((*bytes_read < size) && timeout--)
397 if ((retval = ftdi_read_data(&ftdic, buf + *bytes_read, size - *bytes_read)) < 0)
400 LOG_ERROR("ftdi_read_data: %s", ftdi_get_error_string(&ftdic));
401 return ERROR_JTAG_DEVICE_ERROR;
403 *bytes_read += retval;
408 if (*bytes_read < size)
410 LOG_ERROR("couldn't read enough bytes from "
411 "FT2232 device (%i < %i)",
412 (unsigned)*bytes_read,
414 return ERROR_JTAG_DEVICE_ERROR;
420 static bool ft2232_device_is_highspeed(void)
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);
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
435 static int ft2232h_ft4232h_adaptive_clocking(bool enable)
437 uint8_t buf = enable ? 0x96 : 0x97;
438 LOG_DEBUG("%2.2x", buf);
440 uint32_t bytes_written;
441 int retval = ft2232_write(&buf, 1, &bytes_written);
442 if ((ERROR_OK != retval) || (bytes_written != 1))
444 LOG_ERROR("couldn't write command to %s adaptive clocking"
445 , enable ? "enable" : "disable");
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.
457 static int ft2232h_ft4232h_clk_divide_by_5(bool enable)
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))
464 LOG_ERROR("couldn't write command to %s clk divide by 5"
465 , enable ? "enable" : "disable");
466 return ERROR_JTAG_INIT_FAILED;
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);
474 static int ft2232_speed(int speed)
478 uint32_t bytes_written;
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)
486 LOG_ERROR("ft2232 device %lu does not support RTCK"
487 , (long unsigned int)ftdi_device);
491 if ((enable_adaptive_clocking) || (ERROR_OK != retval))
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 */
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))
501 LOG_ERROR("couldn't set FT2232 TCK speed");
508 static int ft2232_speed_div(int speed, int* khz)
510 /* Take a look in the FT2232 manual,
511 * AN2232C-01 Command Processor for
512 * MPSSE and MCU Host Bus. Chapter 3.8 */
514 *khz = (RTCK_SPEED == speed) ? 0 : ft2232_max_tck / (1 + speed);
519 static int ft2232_khz(int khz, int* jtag_speed)
523 if (ft2232_device_is_highspeed())
525 *jtag_speed = RTCK_SPEED;
530 LOG_DEBUG("RCLK not supported");
535 /* Take a look in the FT2232 manual,
536 * AN2232C-01 Command Processor for
537 * MPSSE and MCU Host Bus. Chapter 3.8
539 * We will calc here with a multiplier
540 * of 10 for better rounding later. */
542 /* Calc speed, (ft2232_max_tck / khz) - 1 */
543 /* Use 65000 for better rounding */
544 *jtag_speed = ((ft2232_max_tck*10) / khz) - 10;
546 /* Add 0.9 for rounding */
549 /* Calc real speed */
550 *jtag_speed = *jtag_speed / 10;
552 /* Check if speed is greater than 0 */
558 /* Check max value */
559 if (*jtag_speed > 0xFFFF)
561 *jtag_speed = 0xFFFF;
567 static void ft2232_end_state(tap_state_t state)
569 if (tap_is_state_stable(state))
570 tap_set_end_state(state);
573 LOG_ERROR("BUG: %s is not a stable end state", tap_state_name(state));
578 static void ft2232_read_scan(enum scan_type type, uint8_t* buffer, int scan_size)
580 int num_bytes = (scan_size + 7) / 8;
581 int bits_left = scan_size;
584 while (num_bytes-- > 1)
586 buffer[cur_byte++] = buffer_read();
590 buffer[cur_byte] = 0x0;
592 /* There is one more partial byte left from the clock data in/out instructions */
595 buffer[cur_byte] = buffer_read() >> 1;
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);
601 static void ft2232_debug_dump_buffer(void)
607 for (i = 0; i < ft2232_buffer_size; i++)
609 line_p += snprintf(line_p, 256 - (line_p - line), "%2.2x ", ft2232_buffer[i]);
612 LOG_DEBUG("%s", line);
618 LOG_DEBUG("%s", line);
621 static int ft2232_send_and_recv(jtag_command_t* first, jtag_command_t* last)
628 uint32_t bytes_written = 0;
629 uint32_t bytes_read = 0;
631 #ifdef _DEBUG_USB_IO_
632 struct timeval start, inter, inter2, end;
633 struct timeval d_inter, d_inter2, d_end;
636 #ifdef _DEBUG_USB_COMMS_
637 LOG_DEBUG("write buffer (size %i):", ft2232_buffer_size);
638 ft2232_debug_dump_buffer();
641 #ifdef _DEBUG_USB_IO_
642 gettimeofday(&start, NULL);
645 if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
647 LOG_ERROR("couldn't write MPSSE commands to FT2232");
651 #ifdef _DEBUG_USB_IO_
652 gettimeofday(&inter, NULL);
655 if (ft2232_expect_read)
657 /* FIXME this "timeout" is never changed ... */
658 int timeout = LIBFTDI_READ_RETRY_COUNT;
659 ft2232_buffer_size = 0;
661 #ifdef _DEBUG_USB_IO_
662 gettimeofday(&inter2, NULL);
665 if ((retval = ft2232_read(ft2232_buffer, ft2232_expect_read, &bytes_read)) != ERROR_OK)
667 LOG_ERROR("couldn't read from FT2232");
671 #ifdef _DEBUG_USB_IO_
672 gettimeofday(&end, NULL);
674 timeval_subtract(&d_inter, &inter, &start);
675 timeval_subtract(&d_inter2, &inter2, &start);
676 timeval_subtract(&d_end, &end, &start);
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);
684 ft2232_buffer_size = bytes_read;
686 if (ft2232_expect_read != ft2232_buffer_size)
688 LOG_ERROR("ft2232_expect_read (%i) != "
689 "ft2232_buffer_size (%i) "
693 LIBFTDI_READ_RETRY_COUNT - timeout);
694 ft2232_debug_dump_buffer();
699 #ifdef _DEBUG_USB_COMMS_
700 LOG_DEBUG("read buffer (%i retries): %i bytes",
701 LIBFTDI_READ_RETRY_COUNT - timeout,
703 ft2232_debug_dump_buffer();
707 ft2232_expect_read = 0;
708 ft2232_read_pointer = 0;
710 /* return ERROR_OK, unless a jtag_read_buffer returns a failed check
711 * that wasn't handled by a caller-provided error handler
721 type = jtag_scan_type(cmd->cmd.scan);
722 if (type != SCAN_OUT)
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;
740 ft2232_buffer_size = 0;
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.
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
754 static void ft2232_add_pathmove(tap_state_t* path, int num_states)
758 assert((unsigned) num_states <= 32u); /* tms_bits only holds 32 bits */
762 /* this loop verifies that the path is legal and logs each state in the path */
765 unsigned char tms_byte = 0; /* zero this on each MPSSE batch */
767 int num_states_batch = num_states > 7 ? 7 : num_states;
769 /* command "Clock Data to TMS/CS Pin (no Read)" */
772 /* number of states remaining */
773 buffer_write(num_states_batch - 1);
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);
784 /* ... or else the caller goofed BADLY */
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]));
793 tap_set_state(path[state_count]);
798 buffer_write(tms_byte);
800 tap_set_end_state(tap_get_state());
803 static void ft2232_add_scan(bool ir_scan, enum scan_type type, uint8_t* buffer, int scan_size)
805 int num_bytes = (scan_size + 7) / 8;
806 int bits_left = scan_size;
812 if (tap_get_state() != TAP_DRSHIFT)
814 move_to_state(TAP_DRSHIFT);
819 if (tap_get_state() != TAP_IRSHIFT)
821 move_to_state(TAP_IRSHIFT);
825 /* add command for complete bytes */
826 while (num_bytes > 1)
831 /* Clock Data Bytes In and Out LSB First */
833 /* LOG_DEBUG("added TDI bytes (io %i)", num_bytes); */
835 else if (type == SCAN_OUT)
837 /* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */
839 /* LOG_DEBUG("added TDI bytes (o)"); */
841 else if (type == SCAN_IN)
843 /* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */
845 /* LOG_DEBUG("added TDI bytes (i %i)", num_bytes); */
848 thisrun_bytes = (num_bytes > 65537) ? 65536 : (num_bytes - 1);
849 num_bytes -= thisrun_bytes;
851 buffer_write((uint8_t) (thisrun_bytes - 1));
852 buffer_write((uint8_t) ((thisrun_bytes - 1) >> 8));
856 /* add complete bytes */
857 while (thisrun_bytes-- > 0)
859 buffer_write(buffer[cur_byte++]);
863 else /* (type == SCAN_IN) */
865 bits_left -= 8 * (thisrun_bytes);
869 /* the most signifcant bit is scanned during TAP movement */
871 last_bit = (buffer[cur_byte] >> (bits_left - 1)) & 0x1;
875 /* process remaining bits but the last one */
880 /* Clock Data Bits In and Out LSB First */
882 /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
884 else if (type == SCAN_OUT)
886 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
888 /* LOG_DEBUG("added TDI bits (o)"); */
890 else if (type == SCAN_IN)
892 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
894 /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
897 buffer_write(bits_left - 2);
899 buffer_write(buffer[cur_byte]);
902 if ((ir_scan && (tap_get_end_state() == TAP_IRSHIFT))
903 || (!ir_scan && (tap_get_end_state() == TAP_DRSHIFT)))
907 /* Clock Data Bits In and Out LSB First */
909 /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
911 else if (type == SCAN_OUT)
913 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
915 /* LOG_DEBUG("added TDI bits (o)"); */
917 else if (type == SCAN_IN)
919 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
921 /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
924 buffer_write(last_bit);
932 /* move from Shift-IR/DR to end state */
933 if (type != SCAN_OUT)
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 */
939 /* Clock Data to TMS/CS Pin with Read */
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) */
950 DEBUG_JTAG_IO("finish %s", (type == SCAN_OUT) ? "without read" : "via PAUSE");
951 clock_tms(mpsse_cmd, tms_bits, tms_count, last_bit);
954 if (tap_get_state() != tap_get_end_state())
956 move_to_state(tap_get_end_state());
960 static int ft2232_large_scan(scan_command_t* cmd, enum scan_type type, uint8_t* buffer, int scan_size)
962 int num_bytes = (scan_size + 7) / 8;
963 int bits_left = scan_size;
966 uint8_t* receive_buffer = malloc(CEIL(scan_size, 8));
967 uint8_t* receive_pointer = receive_buffer;
968 uint32_t bytes_written;
971 int thisrun_read = 0;
975 LOG_ERROR("BUG: large IR scans are not supported");
979 if (tap_get_state() != TAP_DRSHIFT)
981 move_to_state(TAP_DRSHIFT);
984 if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
986 LOG_ERROR("couldn't write MPSSE commands to FT2232");
989 LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i",
990 ft2232_buffer_size, (int)bytes_written);
991 ft2232_buffer_size = 0;
993 /* add command for complete bytes */
994 while (num_bytes > 1)
1000 /* Clock Data Bytes In and Out LSB First */
1002 /* LOG_DEBUG("added TDI bytes (io %i)", num_bytes); */
1004 else if (type == SCAN_OUT)
1006 /* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */
1008 /* LOG_DEBUG("added TDI bytes (o)"); */
1010 else if (type == SCAN_IN)
1012 /* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */
1014 /* LOG_DEBUG("added TDI bytes (i %i)", num_bytes); */
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));
1023 if (type != SCAN_IN)
1025 /* add complete bytes */
1026 while (thisrun_bytes-- > 0)
1028 buffer_write(buffer[cur_byte]);
1033 else /* (type == SCAN_IN) */
1035 bits_left -= 8 * (thisrun_bytes);
1038 if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
1040 LOG_ERROR("couldn't write MPSSE commands to FT2232");
1043 LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i",
1045 (int)bytes_written);
1046 ft2232_buffer_size = 0;
1048 if (type != SCAN_OUT)
1050 if ((retval = ft2232_read(receive_pointer, thisrun_read, &bytes_read)) != ERROR_OK)
1052 LOG_ERROR("couldn't read from FT2232");
1055 LOG_DEBUG("thisrun_read: %i, bytes_read: %i",
1058 receive_pointer += bytes_read;
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;
1070 /* process remaining bits but the last one */
1073 if (type == SCAN_IO)
1075 /* Clock Data Bits In and Out LSB First */
1077 /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
1079 else if (type == SCAN_OUT)
1081 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
1083 /* LOG_DEBUG("added TDI bits (o)"); */
1085 else if (type == SCAN_IN)
1087 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
1089 /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
1091 buffer_write(bits_left - 2);
1092 if (type != SCAN_IN)
1093 buffer_write(buffer[cur_byte]);
1095 if (type != SCAN_OUT)
1099 if (tap_get_end_state() == TAP_DRSHIFT)
1101 if (type == SCAN_IO)
1103 /* Clock Data Bits In and Out LSB First */
1105 /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
1107 else if (type == SCAN_OUT)
1109 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
1111 /* LOG_DEBUG("added TDI bits (o)"); */
1113 else if (type == SCAN_IN)
1115 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
1117 /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
1120 buffer_write(last_bit);
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());
1128 /* move from Shift-IR/DR to end state */
1129 if (type != SCAN_OUT)
1131 /* Clock Data to TMS/CS Pin with Read */
1133 /* LOG_DEBUG("added TMS scan (read)"); */
1137 /* Clock Data to TMS/CS Pin (no Read) */
1139 /* LOG_DEBUG("added TMS scan (no read)"); */
1142 DEBUG_JTAG_IO("finish, %s", (type == SCAN_OUT) ? "no read" : "read");
1143 clock_tms(mpsse_cmd, tms_bits, tms_count, last_bit);
1146 if (type != SCAN_OUT)
1149 if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
1151 LOG_ERROR("couldn't write MPSSE commands to FT2232");
1154 LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i",
1156 (int)bytes_written);
1157 ft2232_buffer_size = 0;
1159 if (type != SCAN_OUT)
1161 if ((retval = ft2232_read(receive_pointer, thisrun_read, &bytes_read)) != ERROR_OK)
1163 LOG_ERROR("couldn't read from FT2232");
1166 LOG_DEBUG("thisrun_read: %i, bytes_read: %i",
1169 receive_pointer += bytes_read;
1175 static int ft2232_predict_scan_out(int scan_size, enum scan_type type)
1177 int predicted_size = 3;
1178 int num_bytes = (scan_size - 1) / 8;
1180 if (tap_get_state() != TAP_DRSHIFT)
1181 predicted_size += get_tms_buffer_requirements(tap_get_tms_path_len(tap_get_state(), TAP_DRSHIFT));
1183 if (type == SCAN_IN) /* only from device to host */
1185 /* complete bytes */
1186 predicted_size += CEIL(num_bytes, 65536) * 3;
1188 /* remaining bits - 1 (up to 7) */
1189 predicted_size += ((scan_size - 1) % 8) ? 2 : 0;
1191 else /* host to device, or bidirectional */
1193 /* complete bytes */
1194 predicted_size += num_bytes + CEIL(num_bytes, 65536) * 3;
1196 /* remaining bits -1 (up to 7) */
1197 predicted_size += ((scan_size - 1) % 8) ? 3 : 0;
1200 return predicted_size;
1203 static int ft2232_predict_scan_in(int scan_size, enum scan_type type)
1205 int predicted_size = 0;
1207 if (type != SCAN_OUT)
1209 /* complete bytes */
1210 predicted_size += (CEIL(scan_size, 8) > 1) ? (CEIL(scan_size, 8) - 1) : 0;
1212 /* remaining bits - 1 */
1213 predicted_size += ((scan_size - 1) % 8) ? 1 : 0;
1215 /* last bit (from TMS scan) */
1216 predicted_size += 1;
1219 /* LOG_DEBUG("scan_size: %i, predicted_size: %i", scan_size, predicted_size); */
1221 return predicted_size;
1224 static void usbjtag_reset(int trst, int srst)
1226 enum reset_types jtag_reset_config = jtag_get_reset_config();
1229 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1230 low_direction |= nTRSTnOE; /* switch to output pin (output is low) */
1232 low_output &= ~nTRST; /* switch output low */
1236 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1237 low_direction &= ~nTRSTnOE; /* switch to input pin (high-Z + internal and external pullup) */
1239 low_output |= nTRST; /* switch output high */
1244 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
1245 low_output &= ~nSRST; /* switch output low */
1247 low_direction |= nSRSTnOE; /* switch to output pin (output is low) */
1251 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
1252 low_output |= nSRST; /* switch output high */
1254 low_direction &= ~nSRSTnOE; /* switch to input pin (high-Z) */
1257 /* command "set data bits low byte" */
1259 buffer_write(low_output);
1260 buffer_write(low_direction);
1263 static void jtagkey_reset(int trst, int srst)
1265 enum reset_types jtag_reset_config = jtag_get_reset_config();
1268 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1269 high_output &= ~nTRSTnOE;
1271 high_output &= ~nTRST;
1275 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1276 high_output |= nTRSTnOE;
1278 high_output |= nTRST;
1283 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
1284 high_output &= ~nSRST;
1286 high_output &= ~nSRSTnOE;
1290 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
1291 high_output |= nSRST;
1293 high_output |= nSRSTnOE;
1296 /* command "set data bits high byte" */
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,
1304 static void olimex_jtag_reset(int trst, int srst)
1306 enum reset_types jtag_reset_config = jtag_get_reset_config();
1309 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1310 high_output &= ~nTRSTnOE;
1312 high_output &= ~nTRST;
1316 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1317 high_output |= nTRSTnOE;
1319 high_output |= nTRST;
1324 high_output |= nSRST;
1328 high_output &= ~nSRST;
1331 /* command "set data bits high byte" */
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,
1339 static void axm0432_jtag_reset(int trst, int srst)
1343 tap_set_state(TAP_RESET);
1344 high_output &= ~nTRST;
1348 high_output |= nTRST;
1353 high_output &= ~nSRST;
1357 high_output |= nSRST;
1360 /* command "set data bits low byte" */
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,
1368 static void flyswatter_reset(int trst, int srst)
1372 low_output &= ~nTRST;
1376 low_output |= nTRST;
1381 low_output |= nSRST;
1385 low_output &= ~nSRST;
1388 /* command "set data bits low byte" */
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);
1395 static void turtle_reset(int trst, int srst)
1401 low_output |= nSRST;
1405 low_output &= ~nSRST;
1408 /* command "set data bits low byte" */
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);
1415 static void comstick_reset(int trst, int srst)
1419 high_output &= ~nTRST;
1423 high_output |= nTRST;
1428 high_output &= ~nSRST;
1432 high_output |= nSRST;
1435 /* command "set data bits high byte" */
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,
1443 static void stm32stick_reset(int trst, int srst)
1447 high_output &= ~nTRST;
1451 high_output |= nTRST;
1456 low_output &= ~nSRST;
1460 low_output |= nSRST;
1463 /* command "set data bits low byte" */
1465 buffer_write(low_output);
1466 buffer_write(low_direction);
1468 /* command "set data bits high byte" */
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,
1476 static void sheevaplug_reset(int trst, int srst)
1479 high_output &= ~nTRST;
1481 high_output |= nTRST;
1484 high_output &= ~nSRSTnOE;
1486 high_output |= nSRSTnOE;
1488 /* command "set data bits high byte" */
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);
1495 static int ft2232_execute_runtest(jtag_command_t *cmd)
1499 int predicted_size = 0;
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));
1506 /* only send the maximum buffer size that FT2232C can handle */
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)
1517 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1518 retval = ERROR_JTAG_QUEUE_FAILED;
1522 if (tap_get_state() != TAP_IDLE)
1524 move_to_state(TAP_IDLE);
1527 i = cmd->cmd.runtest->num_cycles;
1530 /* there are no state transitions in this code, so omit state tracking */
1532 /* command "Clock Data to TMS/CS Pin (no Read)" */
1536 buffer_write((i > 7) ? 6 : (i - 1));
1541 i -= (i > 7) ? 7 : i;
1542 /* LOG_DEBUG("added TMS scan (no read)"); */
1545 ft2232_end_state(cmd->cmd.runtest->end_state);
1547 if (tap_get_state() != tap_get_end_state())
1549 move_to_state(tap_get_end_state());
1553 DEBUG_JTAG_IO("runtest: %i, end in %s",
1554 cmd->cmd.runtest->num_cycles,
1555 tap_state_name(tap_get_end_state()));
1559 static int ft2232_execute_statemove(jtag_command_t *cmd)
1561 int predicted_size = 0;
1562 int retval = ERROR_OK;
1564 DEBUG_JTAG_IO("statemove end in %s",
1565 tap_state_name(cmd->cmd.statemove->end_state));
1567 /* only send the maximum buffer size that FT2232C can handle */
1569 if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1571 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1572 retval = ERROR_JTAG_QUEUE_FAILED;
1576 ft2232_end_state(cmd->cmd.statemove->end_state);
1578 /* For TAP_RESET, ignore the current recorded state. It's often
1579 * wrong at server startup, and this transation is critical whenever
1582 if (tap_get_end_state() == TAP_RESET) {
1583 clock_tms(0x4b, 0xff, 5, 0);
1586 /* shortest-path move to desired end state */
1587 } else if (tap_get_state() != tap_get_end_state())
1589 move_to_state(tap_get_end_state());
1596 static int ft2232_execute_pathmove(jtag_command_t *cmd)
1598 int predicted_size = 0;
1599 int retval = ERROR_OK;
1601 tap_state_t* path = cmd->cmd.pathmove->path;
1602 int num_states = cmd->cmd.pathmove->num_states;
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]));
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)
1612 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1613 retval = ERROR_JTAG_QUEUE_FAILED;
1619 ft2232_add_pathmove(path, num_states);
1625 static int ft2232_execute_scan(jtag_command_t *cmd)
1628 int scan_size; /* size of IR or DR scan */
1629 int predicted_size = 0;
1630 int retval = ERROR_OK;
1632 enum scan_type type = jtag_scan_type(cmd->cmd.scan);
1634 DEBUG_JTAG_IO("%s type:%d", cmd->cmd.scan->ir_scan ? "IRSCAN" : "DRSCAN", type);
1636 scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
1638 predicted_size = ft2232_predict_scan_out(scan_size, type);
1639 if ((predicted_size + 1) > FT2232_BUFFER_SIZE)
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;
1647 /* current command */
1648 ft2232_end_state(cmd->cmd.scan->end_state);
1649 ft2232_large_scan(cmd->cmd.scan, type, buffer, scan_size);
1651 first_unsent = cmd->next;
1656 else if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1658 LOG_DEBUG("ft2232 buffer size reached, sending queued commands (first_unsent: %p, cmd: %p)",
1661 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1662 retval = ERROR_JTAG_QUEUE_FAILED;
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);
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()));
1680 static int ft2232_execute_reset(jtag_command_t *cmd)
1683 int predicted_size = 0;
1686 DEBUG_JTAG_IO("reset trst: %i srst %i",
1687 cmd->cmd.reset->trst, cmd->cmd.reset->srst);
1689 /* only send the maximum buffer size that FT2232C can handle */
1691 if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1693 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1694 retval = ERROR_JTAG_QUEUE_FAILED;
1699 if ((cmd->cmd.reset->trst == 1) || (cmd->cmd.reset->srst && (jtag_get_reset_config() & RESET_SRST_PULLS_TRST)))
1701 tap_set_state(TAP_RESET);
1704 layout->reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
1707 DEBUG_JTAG_IO("trst: %i, srst: %i",
1708 cmd->cmd.reset->trst, cmd->cmd.reset->srst);
1712 static int ft2232_execute_sleep(jtag_command_t *cmd)
1717 DEBUG_JTAG_IO("sleep %i", cmd->cmd.sleep->us);
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",
1725 tap_state_name(tap_get_state()));
1729 static int ft2232_execute_stableclocks(jtag_command_t *cmd)
1734 /* this is only allowed while in a stable state. A check for a stable
1735 * state was done in jtag_add_clocks()
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()));
1745 static int ft2232_execute_command(jtag_command_t *cmd)
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;
1760 LOG_ERROR("BUG: unknown JTAG command type encountered");
1766 static int ft2232_execute_queue(void)
1768 jtag_command_t* cmd = jtag_command_queue; /* currently processed command */
1771 first_unsent = cmd; /* next command that has to be sent */
1774 /* return ERROR_OK, unless ft2232_send_and_recv reports a failed check
1775 * that wasn't handled by a caller-provided error handler
1779 ft2232_buffer_size = 0;
1780 ft2232_expect_read = 0;
1782 /* blink, if the current layout has that feature */
1788 if (ft2232_execute_command(cmd) != ERROR_OK)
1789 retval = ERROR_JTAG_QUEUE_FAILED;
1790 /* Start reading input before FT2232 TX buffer fills up */
1792 if (ft2232_expect_read > 256)
1794 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1795 retval = ERROR_JTAG_QUEUE_FAILED;
1800 if (require_send > 0)
1801 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1802 retval = ERROR_JTAG_QUEUE_FAILED;
1807 #if BUILD_FT2232_FTD2XX == 1
1808 static int ft2232_init_ftd2xx(uint16_t vid, uint16_t pid, int more, int* try_more)
1812 char SerialNumber[16];
1813 char Description[64];
1814 DWORD openex_flags = 0;
1815 char* openex_string = NULL;
1816 uint8_t latency_timer;
1818 LOG_DEBUG("'ft2232' interface using FTD2XX with '%s' layout (%4.4x:%4.4x)", ft2232_layout, vid, pid);
1821 /* Add non-standard Vid/Pid to the linux driver */
1822 if ((status = FT_SetVIDPID(vid, pid)) != FT_OK)
1824 LOG_WARNING("couldn't add %4.4x:%4.4x", vid, pid);
1828 if (ft2232_device_desc && ft2232_serial)
1830 LOG_WARNING("can't open by device description and serial number, giving precedence to serial");
1831 ft2232_device_desc = NULL;
1834 if (ft2232_device_desc)
1836 openex_string = ft2232_device_desc;
1837 openex_flags = FT_OPEN_BY_DESCRIPTION;
1839 else if (ft2232_serial)
1841 openex_string = ft2232_serial;
1842 openex_flags = FT_OPEN_BY_SERIAL_NUMBER;
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");
1849 return ERROR_JTAG_INIT_FAILED;
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! */
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",
1868 ft2232_device_desc_A);
1873 if (status != FT_OK)
1879 LOG_WARNING("unable to open ftdi device (trying more): %lu", status);
1881 return ERROR_JTAG_INIT_FAILED;
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)
1887 char** desc_array = malloc(sizeof(char*) * (num_devices + 1));
1890 for (i = 0; i < num_devices; i++)
1891 desc_array[i] = malloc(64);
1893 desc_array[num_devices] = NULL;
1895 status = FT_ListDevices(desc_array, &num_devices, FT_LIST_ALL | openex_flags);
1897 if (status == FT_OK)
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]);
1904 for (i = 0; i < num_devices; i++)
1905 free(desc_array[i]);
1911 LOG_ERROR("ListDevices: NONE\n");
1913 return ERROR_JTAG_INIT_FAILED;
1916 if ((status = FT_SetLatencyTimer(ftdih, ft2232_latency)) != FT_OK)
1918 LOG_ERROR("unable to set latency timer: %lu", status);
1919 return ERROR_JTAG_INIT_FAILED;
1922 if ((status = FT_GetLatencyTimer(ftdih, &latency_timer)) != FT_OK)
1924 LOG_ERROR("unable to get latency timer: %lu", status);
1925 return ERROR_JTAG_INIT_FAILED;
1929 LOG_DEBUG("current latency timer: %i", latency_timer);
1932 if ((status = FT_SetTimeouts(ftdih, 5000, 5000)) != FT_OK)
1934 LOG_ERROR("unable to set timeouts: %lu", status);
1935 return ERROR_JTAG_INIT_FAILED;
1938 if ((status = FT_SetBitMode(ftdih, 0x0b, 2)) != FT_OK)
1940 LOG_ERROR("unable to enable bit i/o mode: %lu", status);
1941 return ERROR_JTAG_INIT_FAILED;
1944 if ((status = FT_GetDeviceInfo(ftdih, &ftdi_device, &deviceID, SerialNumber, Description, NULL)) != FT_OK)
1946 LOG_ERROR("unable to get FT_GetDeviceInfo: %lu", status);
1947 return ERROR_JTAG_INIT_FAILED;
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);
1965 static int ft2232_purge_ftd2xx(void)
1969 if ((status = FT_Purge(ftdih, FT_PURGE_RX | FT_PURGE_TX)) != FT_OK)
1971 LOG_ERROR("error purging ftd2xx device: %lu", status);
1972 return ERROR_JTAG_INIT_FAILED;
1978 #endif /* BUILD_FT2232_FTD2XX == 1 */
1980 #if BUILD_FT2232_LIBFTDI == 1
1981 static int ft2232_init_libftdi(uint16_t vid, uint16_t pid, int more, int* try_more)
1983 uint8_t latency_timer;
1985 LOG_DEBUG("'ft2232' interface using libftdi with '%s' layout (%4.4x:%4.4x)",
1986 ft2232_layout, vid, pid);
1988 if (ftdi_init(&ftdic) < 0)
1989 return ERROR_JTAG_INIT_FAILED;
1991 if (ftdi_set_interface(&ftdic, INTERFACE_A) < 0)
1993 LOG_ERROR("unable to select FT2232 channel A: %s", ftdic.error_str);
1994 return ERROR_JTAG_INIT_FAILED;
1997 /* context, vendor id, product id */
1998 if (ftdi_usb_open_desc(&ftdic, vid, pid, ft2232_device_desc,
2002 LOG_WARNING("unable to open ftdi device (trying more): %s",
2005 LOG_ERROR("unable to open ftdi device: %s", ftdic.error_str);
2007 return ERROR_JTAG_INIT_FAILED;
2010 /* There is already a reset in ftdi_usb_open_desc, this should be redundant */
2011 if (ftdi_usb_reset(&ftdic) < 0)
2013 LOG_ERROR("unable to reset ftdi device");
2014 return ERROR_JTAG_INIT_FAILED;
2017 if (ftdi_set_latency_timer(&ftdic, ft2232_latency) < 0)
2019 LOG_ERROR("unable to set latency timer");
2020 return ERROR_JTAG_INIT_FAILED;
2023 if (ftdi_get_latency_timer(&ftdic, &latency_timer) < 0)
2025 LOG_ERROR("unable to get latency timer");
2026 return ERROR_JTAG_INIT_FAILED;
2030 LOG_DEBUG("current latency timer: %i", latency_timer);
2033 ftdi_set_bitmode(&ftdic, 0x0b, 2); /* ctx, JTAG I/O mask */
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]);
2045 static int ft2232_purge_libftdi(void)
2047 if (ftdi_usb_purge_buffers(&ftdic) < 0)
2049 LOG_ERROR("ftdi_purge_buffers: %s", ftdic.error_str);
2050 return ERROR_JTAG_INIT_FAILED;
2056 #endif /* BUILD_FT2232_LIBFTDI == 1 */
2058 static int ft2232_init(void)
2062 uint32_t bytes_written;
2063 const ft2232_layout_t* cur_layout = ft2232_layouts;
2066 if (tap_get_tms_path_len(TAP_IRPAUSE,TAP_IRPAUSE) == 7)
2068 LOG_DEBUG("ft2232 interface using 7 step jtag state transitions");
2072 LOG_DEBUG("ft2232 interface using shortest path jtag state transitions");
2075 if ((ft2232_layout == NULL) || (ft2232_layout[0] == 0))
2077 ft2232_layout = "usbjtag";
2078 LOG_WARNING("No ft2232 layout specified, using default 'usbjtag'");
2081 while (cur_layout->name)
2083 if (strcmp(cur_layout->name, ft2232_layout) == 0)
2085 layout = cur_layout;
2093 LOG_ERROR("No matching layout found for %s", ft2232_layout);
2094 return ERROR_JTAG_INIT_FAILED;
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
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.
2108 int more = ft2232_vid[i + 1] || ft2232_pid[i + 1];
2111 #if BUILD_FT2232_FTD2XX == 1
2112 retval = ft2232_init_ftd2xx(ft2232_vid[i], ft2232_pid[i],
2114 #elif BUILD_FT2232_LIBFTDI == 1
2115 retval = ft2232_init_libftdi(ft2232_vid[i], ft2232_pid[i],
2120 if (!more || !try_more)
2124 ft2232_buffer_size = 0;
2125 ft2232_buffer = malloc(FT2232_BUFFER_SIZE);
2127 if (layout->init() != ERROR_OK)
2128 return ERROR_JTAG_INIT_FAILED;
2130 if (ft2232_device_is_highspeed())
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)");
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;
2144 ft2232_speed(jtag_get_speed());
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))
2149 LOG_ERROR("couldn't write to FT2232 to disable loopback");
2150 return ERROR_JTAG_INIT_FAILED;
2153 #if BUILD_FT2232_FTD2XX == 1
2154 return ft2232_purge_ftd2xx();
2155 #elif BUILD_FT2232_LIBFTDI == 1
2156 return ft2232_purge_libftdi();
2162 static int usbjtag_init(void)
2165 uint32_t bytes_written;
2168 low_direction = 0x0b;
2170 if (strcmp(ft2232_layout, "usbjtag") == 0)
2177 else if (strcmp(ft2232_layout, "signalyzer") == 0)
2184 else if (strcmp(ft2232_layout, "evb_lm3s811") == 0)
2191 low_direction = 0x8b;
2193 else if (strcmp(ft2232_layout, "luminary_icdi") == 0)
2200 low_direction = 0xcb;
2204 LOG_ERROR("BUG: usbjtag_init called for unknown layout '%s'", ft2232_layout);
2205 return ERROR_JTAG_INIT_FAILED;
2208 enum reset_types jtag_reset_config = jtag_get_reset_config();
2209 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
2211 low_direction &= ~nTRSTnOE; /* nTRST input */
2212 low_output &= ~nTRST; /* nTRST = 0 */
2216 low_direction |= nTRSTnOE; /* nTRST output */
2217 low_output |= nTRST; /* nTRST = 1 */
2220 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
2222 low_direction |= nSRSTnOE; /* nSRST output */
2223 low_output |= nSRST; /* nSRST = 1 */
2227 low_direction &= ~nSRSTnOE; /* nSRST input */
2228 low_output &= ~nSRST; /* nSRST = 0 */
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]);
2237 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2239 LOG_ERROR("couldn't initialize FT2232 with 'USBJTAG' layout");
2240 return ERROR_JTAG_INIT_FAILED;
2246 static int axm0432_jtag_init(void)
2249 uint32_t bytes_written;
2252 low_direction = 0x2b;
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]);
2260 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2262 LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
2263 return ERROR_JTAG_INIT_FAILED;
2266 if (strcmp(layout->name, "axm0432_jtag") == 0)
2269 nTRSTnOE = 0x0; /* No output enable for TRST*/
2271 nSRSTnOE = 0x0; /* No output enable for SRST*/
2275 LOG_ERROR("BUG: axm0432_jtag_init called for non axm0432 layout");
2280 high_direction = 0x0c;
2282 enum reset_types jtag_reset_config = jtag_get_reset_config();
2283 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
2285 LOG_ERROR("can't set nTRSTOE to push-pull on the Dicarlo jtag");
2289 high_output |= nTRST;
2292 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
2294 LOG_ERROR("can't set nSRST to push-pull on the Dicarlo jtag");
2298 high_output |= nSRST;
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]);
2307 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2309 LOG_ERROR("couldn't initialize FT2232 with 'Dicarlo' layout");
2310 return ERROR_JTAG_INIT_FAILED;
2316 static int jtagkey_init(void)
2319 uint32_t bytes_written;
2322 low_direction = 0x1b;
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]);
2330 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2332 LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
2333 return ERROR_JTAG_INIT_FAILED;
2336 if (strcmp(layout->name, "jtagkey") == 0)
2343 else if ((strcmp(layout->name, "jtagkey_prototype_v1") == 0)
2344 || (strcmp(layout->name, "oocdlink") == 0))
2353 LOG_ERROR("BUG: jtagkey_init called for non jtagkey layout");
2358 high_direction = 0x0f;
2360 enum reset_types jtag_reset_config = jtag_get_reset_config();
2361 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
2363 high_output |= nTRSTnOE;
2364 high_output &= ~nTRST;
2368 high_output &= ~nTRSTnOE;
2369 high_output |= nTRST;
2372 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
2374 high_output &= ~nSRSTnOE;
2375 high_output |= nSRST;
2379 high_output |= nSRSTnOE;
2380 high_output &= ~nSRST;
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]);
2389 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2391 LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
2392 return ERROR_JTAG_INIT_FAILED;
2398 static int olimex_jtag_init(void)
2401 uint32_t bytes_written;
2404 low_direction = 0x1b;
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]);
2412 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2414 LOG_ERROR("couldn't initialize FT2232 with 'Olimex' layout");
2415 return ERROR_JTAG_INIT_FAILED;
2421 nSRSTnOE = 0x00; /* no output enable for nSRST */
2424 high_direction = 0x0f;
2426 enum reset_types jtag_reset_config = jtag_get_reset_config();
2427 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
2429 high_output |= nTRSTnOE;
2430 high_output &= ~nTRST;
2434 high_output &= ~nTRSTnOE;
2435 high_output |= nTRST;
2438 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
2440 LOG_ERROR("can't set nSRST to push-pull on the Olimex ARM-USB-OCD");
2444 high_output &= ~nSRST;
2447 /* turn red LED on */
2448 high_output |= 0x08;
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]);
2456 if ((ft2232_write(buf, 3, &bytes_written) != ERROR_OK) || (bytes_written != 3))
2458 LOG_ERROR("couldn't initialize FT2232 with 'Olimex' layout");
2459 return ERROR_JTAG_INIT_FAILED;
2465 static int flyswatter_init(void)
2468 uint32_t bytes_written;
2471 low_direction = 0xfb;
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]);
2479 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2481 LOG_ERROR("couldn't initialize FT2232 with 'flyswatter' layout");
2482 return ERROR_JTAG_INIT_FAILED;
2486 nTRSTnOE = 0x0; /* not output enable for nTRST */
2488 nSRSTnOE = 0x00; /* no output enable for nSRST */
2491 high_direction = 0x0c;
2493 /* turn red LED3 on, LED2 off */
2494 high_output |= 0x08;
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]);
2502 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2504 LOG_ERROR("couldn't initialize FT2232 with 'flyswatter' layout");
2505 return ERROR_JTAG_INIT_FAILED;
2511 static int turtle_init(void)
2514 uint32_t bytes_written;
2517 low_direction = 0x5b;
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]);
2525 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2527 LOG_ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
2528 return ERROR_JTAG_INIT_FAILED;
2534 high_direction = 0x0C;
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]);
2542 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2544 LOG_ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
2545 return ERROR_JTAG_INIT_FAILED;
2551 static int comstick_init(void)
2554 uint32_t bytes_written;
2557 low_direction = 0x0b;
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]);
2565 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2567 LOG_ERROR("couldn't initialize FT2232 with 'comstick' layout");
2568 return ERROR_JTAG_INIT_FAILED;
2572 nTRSTnOE = 0x00; /* no output enable for nTRST */
2574 nSRSTnOE = 0x00; /* no output enable for nSRST */
2577 high_direction = 0x03;
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]);
2585 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2587 LOG_ERROR("couldn't initialize FT2232 with 'comstick' layout");
2588 return ERROR_JTAG_INIT_FAILED;
2594 static int stm32stick_init(void)
2597 uint32_t bytes_written;
2600 low_direction = 0x8b;
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]);
2608 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2610 LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
2611 return ERROR_JTAG_INIT_FAILED;
2615 nTRSTnOE = 0x00; /* no output enable for nTRST */
2617 nSRSTnOE = 0x00; /* no output enable for nSRST */
2620 high_direction = 0x03;
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]);
2628 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2630 LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
2631 return ERROR_JTAG_INIT_FAILED;
2637 static int sheevaplug_init(void)
2640 uint32_t bytes_written;
2643 low_direction = 0x1b;
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]);
2651 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2653 LOG_ERROR("couldn't initialize FT2232 with 'sheevaplug' layout");
2654 return ERROR_JTAG_INIT_FAILED;
2663 high_direction = 0x0f;
2665 /* nTRST is always push-pull */
2666 high_output &= ~nTRSTnOE;
2667 high_output |= nTRST;
2669 /* nSRST is always open-drain */
2670 high_output |= nSRSTnOE;
2671 high_output &= ~nSRST;
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]);
2679 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2681 LOG_ERROR("couldn't initialize FT2232 with 'sheevaplug' layout");
2682 return ERROR_JTAG_INIT_FAILED;
2688 static int cortino_jtag_init(void)
2691 uint32_t bytes_written;
2694 low_direction = 0x1b;
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]);
2702 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2704 LOG_ERROR("couldn't initialize FT2232 with 'cortino' layout");
2705 return ERROR_JTAG_INIT_FAILED;
2709 nTRSTnOE = 0x00; /* no output enable for nTRST */
2711 nSRSTnOE = 0x00; /* no output enable for nSRST */
2714 high_direction = 0x03;
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]);
2722 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2724 LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
2725 return ERROR_JTAG_INIT_FAILED;
2731 static void olimex_jtag_blink(void)
2733 /* Olimex ARM-USB-OCD has a LED connected to ACBUS3
2734 * ACBUS3 is bit 3 of the GPIOH port
2736 if (high_output & 0x08)
2738 /* set port pin high */
2739 high_output &= 0x07;
2743 /* set port pin low */
2744 high_output |= 0x08;
2748 buffer_write(high_output);
2749 buffer_write(high_direction);
2752 static void flyswatter_jtag_blink(void)
2755 * Flyswatter has two LEDs connected to ACBUS2 and ACBUS3
2757 high_output ^= 0x0c;
2760 buffer_write(high_output);
2761 buffer_write(high_direction);
2764 static void turtle_jtag_blink(void)
2767 * Turtelizer2 has two LEDs connected to ACBUS2 and ACBUS3
2769 if (high_output & 0x08)
2779 buffer_write(high_output);
2780 buffer_write(high_direction);
2783 static int ft2232_quit(void)
2785 #if BUILD_FT2232_FTD2XX == 1
2788 status = FT_Close(ftdih);
2789 #elif BUILD_FT2232_LIBFTDI == 1
2790 ftdi_usb_close(&ftdic);
2792 ftdi_deinit(&ftdic);
2795 free(ft2232_buffer);
2796 ft2232_buffer = NULL;
2801 COMMAND_HANDLER(ft2232_handle_device_desc_command)
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);
2819 ft2232_device_desc = strdup(buf);
2821 /* <space > A not defined
2823 sprintf(buf, "%s A", ft2232_device_desc);
2824 ft2232_device_desc_A = strdup(buf);
2829 LOG_ERROR("expected exactly one argument to ft2232_device_desc <description>");
2835 COMMAND_HANDLER(ft2232_handle_serial_command)
2839 ft2232_serial = strdup(args[0]);
2843 LOG_ERROR("expected exactly one argument to ft2232_serial <serial-number>");
2849 COMMAND_HANDLER(ft2232_handle_layout_command)
2854 ft2232_layout = malloc(strlen(args[0]) + 1);
2855 strcpy(ft2232_layout, args[0]);
2860 COMMAND_HANDLER(ft2232_handle_vid_pid_command)
2862 if (argc > MAX_USB_IDS * 2)
2864 LOG_WARNING("ignoring extra IDs in ft2232_vid_pid "
2865 "(maximum is %d pairs)", MAX_USB_IDS);
2866 argc = MAX_USB_IDS * 2;
2868 if (argc < 2 || (argc & 1))
2870 LOG_WARNING("incomplete ft2232_vid_pid configuration directive");
2872 return ERROR_COMMAND_SYNTAX_ERROR;
2873 /* remove the incomplete trailing id */
2878 for (i = 0; i < argc; i += 2)
2880 COMMAND_PARSE_NUMBER(u16, args[i], ft2232_vid[i >> 1]);
2881 COMMAND_PARSE_NUMBER(u16, args[i + 1], ft2232_pid[i >> 1]);
2885 * Explicitly terminate, in case there are multiples instances of
2888 ft2232_vid[i >> 1] = ft2232_pid[i >> 1] = 0;
2893 COMMAND_HANDLER(ft2232_handle_latency_command)
2897 ft2232_latency = atoi(args[0]);
2901 LOG_ERROR("expected exactly one argument to ft2232_latency <ms>");
2907 static int ft2232_stableclocks(int num_cycles, jtag_command_t* cmd)
2911 /* 7 bits of either ones or zeros. */
2912 uint8_t tms = (tap_get_state() == TAP_RESET ? 0x7F : 0x00);
2914 while (num_cycles > 0)
2916 /* the command 0x4b, "Clock Data to TMS/CS Pin (no Read)" handles
2917 * at most 7 bits per invocation. Here we invoke it potentially
2920 int bitcount_per_command = (num_cycles > 7) ? 7 : num_cycles;
2922 if (ft2232_buffer_size + 3 >= FT2232_BUFFER_SIZE)
2924 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
2925 retval = ERROR_JTAG_QUEUE_FAILED;
2930 /* there are no state transitions in this code, so omit state tracking */
2932 /* command "Clock Data to TMS/CS Pin (no Read)" */
2936 buffer_write(bitcount_per_command - 1);
2938 /* TMS data bits are either all zeros or ones to stay in the current stable state */
2943 num_cycles -= bitcount_per_command;
2949 /* ---------------------------------------------------------------------
2950 * Support for IceBear JTAG adapter from Section5:
2951 * http://section5.ch/icebear
2953 * Author: Sten, debian@sansys-electronic.com
2956 /* Icebear pin layout
2958 * ADBUS5 (nEMU) nSRST | 2 1| GND (10k->VCC)
2959 * GND GND | 4 3| n.c.
2960 * ADBUS3 TMS | 6 5| ADBUS6 VCC
2961 * ADBUS0 TCK | 8 7| ADBUS7 (GND)
2962 * ADBUS4 nTRST |10 9| ACBUS0 (GND)
2963 * ADBUS1 TDI |12 11| ACBUS1 (GND)
2964 * ADBUS2 TDO |14 13| GND GND
2966 * ADBUS0 O L TCK ACBUS0 GND
2967 * ADBUS1 O L TDI ACBUS1 GND
2968 * ADBUS2 I TDO ACBUS2 n.c.
2969 * ADBUS3 O H TMS ACBUS3 n.c.
2975 static int icebear_jtag_init(void) {
2977 uint32_t bytes_written;
2979 low_direction = 0x0b; /* output: TCK TDI TMS; input: TDO */
2980 low_output = 0x08; /* high: TMS; low: TCK TDI */
2984 enum reset_types jtag_reset_config = jtag_get_reset_config();
2985 if ((jtag_reset_config & RESET_TRST_OPEN_DRAIN) != 0) {
2986 low_direction &= ~nTRST; /* nTRST high impedance */
2989 low_direction |= nTRST;
2990 low_output |= nTRST;
2993 low_direction |= nSRST;
2994 low_output |= nSRST;
2996 /* initialize low byte for jtag */
2997 buf[0] = 0x80; /* command "set data bits low byte" */
2998 buf[1] = low_output;
2999 buf[2] = low_direction;
3000 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
3002 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) {
3003 LOG_ERROR("couldn't initialize FT2232 with 'IceBear' layout (low)");
3004 return ERROR_JTAG_INIT_FAILED;
3008 high_direction = 0x00;
3011 /* initialize high port */
3012 buf[0] = 0x82; /* command "set data bits high byte" */
3013 buf[1] = high_output; /* value */
3014 buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
3015 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
3017 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) {
3018 LOG_ERROR("couldn't initialize FT2232 with 'IceBear' layout (high)");
3019 return ERROR_JTAG_INIT_FAILED;
3025 static void icebear_jtag_reset(int trst, int srst) {
3028 low_direction |= nTRST;
3029 low_output &= ~nTRST;
3031 else if (trst == 0) {
3032 enum reset_types jtag_reset_config = jtag_get_reset_config();
3033 if ((jtag_reset_config & RESET_TRST_OPEN_DRAIN) != 0)
3034 low_direction &= ~nTRST;
3036 low_output |= nTRST;
3040 low_output &= ~nSRST;
3042 else if (srst == 0) {
3043 low_output |= nSRST;
3046 /* command "set data bits low byte" */
3048 buffer_write(low_output);
3049 buffer_write(low_direction);
3051 LOG_DEBUG("trst: %i, srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", trst, srst, low_output, low_direction);
3054 /* ---------------------------------------------------------------------
3055 * Support for Signalyzer H2 and Signalyzer H4
3056 * JTAG adapter from Xverve Technologies Inc.
3057 * http://www.signalyzer.com or http://www.xverve.com
3059 * Author: Oleg Seiljus, oleg@signalyzer.com
3061 static unsigned char signalyzer_h_side;
3062 static unsigned int signalyzer_h_adapter_type;
3064 static int signalyzer_h_ctrl_write(int address, unsigned short value);
3066 #if BUILD_FT2232_FTD2XX == 1
3067 static int signalyzer_h_ctrl_read(int address, unsigned short *value);
3070 #define SIGNALYZER_COMMAND_ADDR 128
3071 #define SIGNALYZER_DATA_BUFFER_ADDR 129
3073 #define SIGNALYZER_COMMAND_VERSION 0x41
3074 #define SIGNALYZER_COMMAND_RESET 0x42
3075 #define SIGNALYZER_COMMAND_POWERCONTROL_GET 0x50
3076 #define SIGNALYZER_COMMAND_POWERCONTROL_SET 0x51
3077 #define SIGNALYZER_COMMAND_PWM_SET 0x52
3078 #define SIGNALYZER_COMMAND_LED_SET 0x53
3079 #define SIGNALYZER_COMMAND_ADC 0x54
3080 #define SIGNALYZER_COMMAND_GPIO_STATE 0x55
3081 #define SIGNALYZER_COMMAND_GPIO_MODE 0x56
3082 #define SIGNALYZER_COMMAND_GPIO_PORT 0x57
3083 #define SIGNALYZER_COMMAND_I2C 0x58
3085 #define SIGNALYZER_CHAN_A 1
3086 #define SIGNALYZER_CHAN_B 2
3087 /* LEDS use channel C */
3088 #define SIGNALYZER_CHAN_C 4
3090 #define SIGNALYZER_LED_GREEN 1
3091 #define SIGNALYZER_LED_RED 2
3093 #define SIGNALYZER_MODULE_TYPE_EM_LT16_A 0x0301
3094 #define SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG 0x0302
3095 #define SIGNALYZER_MODULE_TYPE_EM_JTAG 0x0303
3096 #define SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG_P 0x0304
3097 #define SIGNALYZER_MODULE_TYPE_EM_JTAG_P 0x0305
3100 static int signalyzer_h_ctrl_write(int address, unsigned short value)
3102 #if BUILD_FT2232_FTD2XX == 1
3103 return FT_WriteEE(ftdih, address, value);
3104 #elif BUILD_FT2232_LIBFTDI == 1
3109 #if BUILD_FT2232_FTD2XX == 1
3110 static int signalyzer_h_ctrl_read(int address, unsigned short *value)
3112 return FT_ReadEE(ftdih, address, value);
3116 static int signalyzer_h_led_set(unsigned char channel, unsigned char led,
3117 int on_time_ms, int off_time_ms, unsigned char cycles)
3119 unsigned char on_time;
3120 unsigned char off_time;
3122 if (on_time_ms < 0xFFFF)
3123 on_time = (unsigned char)(on_time_ms / 62);
3127 off_time = (unsigned char)(off_time_ms / 62);
3129 #if BUILD_FT2232_FTD2XX == 1
3132 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
3133 ((uint32_t)(channel << 8) | led))) != FT_OK)
3135 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3136 return ERROR_JTAG_DEVICE_ERROR;
3139 if ((status = signalyzer_h_ctrl_write(
3140 (SIGNALYZER_DATA_BUFFER_ADDR + 1),
3141 ((uint32_t)(on_time << 8) | off_time))) != FT_OK)
3143 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3144 return ERROR_JTAG_DEVICE_ERROR;
3147 if ((status = signalyzer_h_ctrl_write(
3148 (SIGNALYZER_DATA_BUFFER_ADDR + 2),
3149 ((uint32_t)cycles))) != FT_OK)
3151 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3152 return ERROR_JTAG_DEVICE_ERROR;
3155 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
3156 SIGNALYZER_COMMAND_LED_SET)) != FT_OK)
3158 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3159 return ERROR_JTAG_DEVICE_ERROR;
3163 #elif BUILD_FT2232_LIBFTDI == 1
3166 if ((retval = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
3167 ((uint32_t)(channel << 8) | led))) < 0)
3169 LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
3170 ftdi_get_error_string(&ftdic));
3171 return ERROR_JTAG_DEVICE_ERROR;
3174 if ((retval = signalyzer_h_ctrl_write(
3175 (SIGNALYZER_DATA_BUFFER_ADDR + 1),
3176 ((uint32_t)(on_time << 8) | off_time))) < 0)
3178 LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
3179 ftdi_get_error_string(&ftdic));
3180 return ERROR_JTAG_DEVICE_ERROR;
3183 if ((retval = signalyzer_h_ctrl_write(
3184 (SIGNALYZER_DATA_BUFFER_ADDR + 2),
3185 (uint32_t)cycles)) < 0)
3187 LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
3188 ftdi_get_error_string(&ftdic));
3189 return ERROR_JTAG_DEVICE_ERROR;
3192 if ((retval = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
3193 SIGNALYZER_COMMAND_LED_SET)) < 0)
3195 LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
3196 ftdi_get_error_string(&ftdic));
3197 return ERROR_JTAG_DEVICE_ERROR;
3204 static int signalyzer_h_init(void)
3206 #if BUILD_FT2232_FTD2XX == 1
3213 uint16_t read_buf[12] = { 0 };
3215 uint32_t bytes_written;
3217 /* turn on center green led */
3218 signalyzer_h_led_set(SIGNALYZER_CHAN_C, SIGNALYZER_LED_GREEN,
3219 0xFFFF, 0x00, 0x00);
3221 /* determine what channel config wants to open
3222 * TODO: change me... current implementation is made to work
3223 * with openocd description parsing.
3225 end_of_desc = strrchr(ft2232_device_desc, 0x00);
3229 signalyzer_h_side = *(end_of_desc - 1);
3230 if (signalyzer_h_side == 'B')
3231 signalyzer_h_side = SIGNALYZER_CHAN_B;
3233 signalyzer_h_side = SIGNALYZER_CHAN_A;
3237 LOG_ERROR("No Channel was specified");
3241 signalyzer_h_led_set(signalyzer_h_side, SIGNALYZER_LED_GREEN,
3244 #if BUILD_FT2232_FTD2XX == 1
3245 /* read signalyzer versionining information */
3246 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
3247 SIGNALYZER_COMMAND_VERSION)) != FT_OK)
3249 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3250 return ERROR_JTAG_DEVICE_ERROR;
3253 for (i = 0; i < 10; i++)
3255 if ((status = signalyzer_h_ctrl_read(
3256 (SIGNALYZER_DATA_BUFFER_ADDR + i),
3257 &read_buf[i])) != FT_OK)
3259 LOG_ERROR("signalyzer_h_ctrl_read returned: %lu",
3261 return ERROR_JTAG_DEVICE_ERROR;
3265 LOG_INFO("Signalyzer: ID info: { %.4x %.4x %.4x %.4x %.4x %.4x %.4x }",
3266 read_buf[0], read_buf[1], read_buf[2], read_buf[3],
3267 read_buf[4], read_buf[5], read_buf[6]);
3269 /* set gpio register */
3270 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
3271 (uint32_t)(signalyzer_h_side << 8))) != FT_OK)
3273 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3274 return ERROR_JTAG_DEVICE_ERROR;
3277 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR + 1,
3280 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3281 return ERROR_JTAG_DEVICE_ERROR;
3284 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
3285 SIGNALYZER_COMMAND_GPIO_STATE)) != FT_OK)
3287 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3288 return ERROR_JTAG_DEVICE_ERROR;
3291 /* read adapter type information */
3292 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
3293 ((uint32_t)(signalyzer_h_side << 8) | 0x01))) != FT_OK)
3295 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3296 return ERROR_JTAG_DEVICE_ERROR;
3299 if ((status = signalyzer_h_ctrl_write(
3300 (SIGNALYZER_DATA_BUFFER_ADDR + 1), 0xA000)) != FT_OK)
3302 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3303 return ERROR_JTAG_DEVICE_ERROR;
3306 if ((status = signalyzer_h_ctrl_write(
3307 (SIGNALYZER_DATA_BUFFER_ADDR + 2), 0x0008)) != FT_OK)
3309 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3310 return ERROR_JTAG_DEVICE_ERROR;
3313 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
3314 SIGNALYZER_COMMAND_I2C)) != FT_OK)
3316 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3317 return ERROR_JTAG_DEVICE_ERROR;
3322 if ((status = signalyzer_h_ctrl_read(SIGNALYZER_COMMAND_ADDR,
3323 &read_buf[0])) != FT_OK)
3325 LOG_ERROR("signalyzer_h_ctrl_read returned: %lu", status);
3326 return ERROR_JTAG_DEVICE_ERROR;
3329 if (read_buf[0] != 0x0498)
3330 signalyzer_h_adapter_type = 0x0000;
3333 for (i = 0; i < 4; i++)
3335 if ((status = signalyzer_h_ctrl_read(
3336 (SIGNALYZER_DATA_BUFFER_ADDR + i),
3337 &read_buf[i])) != FT_OK)
3339 LOG_ERROR("signalyzer_h_ctrl_read returned: %lu",
3341 return ERROR_JTAG_DEVICE_ERROR;
3345 signalyzer_h_adapter_type = read_buf[0];
3348 #elif BUILD_FT2232_LIBFTDI == 1
3349 /* currently libftdi does not allow reading individual eeprom
3350 * locations, therefore adapter type cannot be detected.
3351 * override with most common type
3353 signalyzer_h_adapter_type = SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG;
3356 enum reset_types jtag_reset_config = jtag_get_reset_config();
3358 /* ADAPTOR: EM_LT16_A */
3359 if (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_LT16_A)
3361 LOG_INFO("Signalyzer: EM-LT (16-channel level translator) "
3362 "detected. (HW: %2x).", (read_buf[1] >> 8));
3370 low_direction = 0x1b;
3373 high_direction = 0x0;
3375 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3377 low_direction &= ~nTRSTnOE; /* nTRST input */
3378 low_output &= ~nTRST; /* nTRST = 0 */
3382 low_direction |= nTRSTnOE; /* nTRST output */
3383 low_output |= nTRST; /* nTRST = 1 */
3386 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3388 low_direction |= nSRSTnOE; /* nSRST output */
3389 low_output |= nSRST; /* nSRST = 1 */
3393 low_direction &= ~nSRSTnOE; /* nSRST input */
3394 low_output &= ~nSRST; /* nSRST = 0 */
3397 #if BUILD_FT2232_FTD2XX == 1
3398 /* enable power to the module */
3399 if ((status = signalyzer_h_ctrl_write(
3400 SIGNALYZER_DATA_BUFFER_ADDR,
3401 ((uint32_t)(signalyzer_h_side << 8) | 0x01)))
3404 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3406 return ERROR_JTAG_DEVICE_ERROR;
3409 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
3410 SIGNALYZER_COMMAND_POWERCONTROL_SET)) != FT_OK)
3412 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3414 return ERROR_JTAG_DEVICE_ERROR;
3417 /* set gpio mode register */
3418 if ((status = signalyzer_h_ctrl_write(
3419 SIGNALYZER_DATA_BUFFER_ADDR,
3420 (uint32_t)(signalyzer_h_side << 8))) != FT_OK)
3422 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3424 return ERROR_JTAG_DEVICE_ERROR;
3427 if ((status = signalyzer_h_ctrl_write(
3428 SIGNALYZER_DATA_BUFFER_ADDR + 1, 0x0000))
3431 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3433 return ERROR_JTAG_DEVICE_ERROR;
3436 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
3437 SIGNALYZER_COMMAND_GPIO_MODE)) != FT_OK)
3439 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3441 return ERROR_JTAG_DEVICE_ERROR;
3444 /* set gpio register */
3445 if ((status = signalyzer_h_ctrl_write(
3446 SIGNALYZER_DATA_BUFFER_ADDR,
3447 (uint32_t)(signalyzer_h_side << 8))) != FT_OK)
3449 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3451 return ERROR_JTAG_DEVICE_ERROR;
3454 if ((status = signalyzer_h_ctrl_write(
3455 SIGNALYZER_DATA_BUFFER_ADDR + 1, 0x4040))
3458 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3460 return ERROR_JTAG_DEVICE_ERROR;
3463 if ((status = signalyzer_h_ctrl_write(
3464 SIGNALYZER_COMMAND_ADDR,
3465 SIGNALYZER_COMMAND_GPIO_STATE)) != FT_OK)
3467 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3469 return ERROR_JTAG_DEVICE_ERROR;
3474 /* ADAPTOR: EM_ARM_JTAG, EM_ARM_JTAG_P, EM_JTAG, EM_JTAG_P */
3475 else if ((signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG) ||
3476 (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG_P) ||
3477 (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_JTAG) ||
3478 (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_JTAG_P))
3480 if (signalyzer_h_adapter_type
3481 == SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG)
3482 LOG_INFO("Signalyzer: EM-ARM-JTAG (ARM JTAG) "
3483 "detected. (HW: %2x).", (read_buf[1] >> 8));
3484 else if (signalyzer_h_adapter_type
3485 == SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG_P)
3486 LOG_INFO("Signalyzer: EM-ARM-JTAG_P "
3487 "(ARM JTAG with PSU) detected. (HW: %2x).",
3488 (read_buf[1] >> 8));
3489 else if (signalyzer_h_adapter_type
3490 == SIGNALYZER_MODULE_TYPE_EM_JTAG)
3491 LOG_INFO("Signalyzer: EM-JTAG (Generic JTAG) "
3492 "detected. (HW: %2x).", (read_buf[1] >> 8));
3493 else if (signalyzer_h_adapter_type
3494 == SIGNALYZER_MODULE_TYPE_EM_JTAG_P)
3495 LOG_INFO("Signalyzer: EM-JTAG-P "
3496 "(Generic JTAG with PSU) detected. (HW: %2x).",
3497 (read_buf[1] >> 8));
3505 low_direction = 0x1b;
3508 high_direction = 0x1f;
3510 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3512 high_output |= nTRSTnOE;
3513 high_output &= ~nTRST;
3517 high_output &= ~nTRSTnOE;
3518 high_output |= nTRST;
3521 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3523 high_output &= ~nSRSTnOE;
3524 high_output |= nSRST;
3528 high_output |= nSRSTnOE;
3529 high_output &= ~nSRST;
3532 #if BUILD_FT2232_FTD2XX == 1
3533 /* enable power to the module */
3534 if ((status = signalyzer_h_ctrl_write(
3535 SIGNALYZER_DATA_BUFFER_ADDR,
3536 ((uint32_t)(signalyzer_h_side << 8) | 0x01)))
3539 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3541 return ERROR_JTAG_DEVICE_ERROR;
3544 if ((status = signalyzer_h_ctrl_write(
3545 SIGNALYZER_COMMAND_ADDR,
3546 SIGNALYZER_COMMAND_POWERCONTROL_SET)) != FT_OK)
3548 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3550 return ERROR_JTAG_DEVICE_ERROR;
3553 /* set gpio mode register (IO_16 and IO_17 set as analog
3554 * inputs, other is gpio)
3556 if ((status = signalyzer_h_ctrl_write(
3557 SIGNALYZER_DATA_BUFFER_ADDR,
3558 (uint32_t)(signalyzer_h_side << 8))) != FT_OK)
3560 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3562 return ERROR_JTAG_DEVICE_ERROR;
3565 if ((status = signalyzer_h_ctrl_write(
3566 SIGNALYZER_DATA_BUFFER_ADDR + 1, 0x0060))
3569 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3571 return ERROR_JTAG_DEVICE_ERROR;
3574 if ((status = signalyzer_h_ctrl_write(
3575 SIGNALYZER_COMMAND_ADDR,
3576 SIGNALYZER_COMMAND_GPIO_MODE)) != FT_OK)
3578 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3580 return ERROR_JTAG_DEVICE_ERROR;
3583 /* set gpio register (all inputs, for -P modules,
3584 * PSU will be turned off)
3586 if ((status = signalyzer_h_ctrl_write(
3587 SIGNALYZER_DATA_BUFFER_ADDR,
3588 (uint32_t)(signalyzer_h_side << 8))) != FT_OK)
3590 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3592 return ERROR_JTAG_DEVICE_ERROR;
3595 if ((status = signalyzer_h_ctrl_write(
3596 SIGNALYZER_DATA_BUFFER_ADDR + 1, 0x0000))
3599 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3601 return ERROR_JTAG_DEVICE_ERROR;
3604 if ((status = signalyzer_h_ctrl_write(
3605 SIGNALYZER_COMMAND_ADDR,
3606 SIGNALYZER_COMMAND_GPIO_STATE)) != FT_OK)
3608 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3610 return ERROR_JTAG_DEVICE_ERROR;
3615 else if (signalyzer_h_adapter_type == 0x0000)
3617 LOG_INFO("Signalyzer: No external modules were detected.");
3625 low_direction = 0x1b;
3628 high_direction = 0x0;
3630 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3632 low_direction &= ~nTRSTnOE; /* nTRST input */
3633 low_output &= ~nTRST; /* nTRST = 0 */
3637 low_direction |= nTRSTnOE; /* nTRST output */
3638 low_output |= nTRST; /* nTRST = 1 */
3641 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3643 low_direction |= nSRSTnOE; /* nSRST output */
3644 low_output |= nSRST; /* nSRST = 1 */
3648 low_direction &= ~nSRSTnOE; /* nSRST input */
3649 low_output &= ~nSRST; /* nSRST = 0 */
3654 LOG_ERROR("Unknown module type is detected: %.4x",
3655 signalyzer_h_adapter_type);
3656 return ERROR_JTAG_DEVICE_ERROR;
3659 /* initialize low byte of controller for jtag operation */
3661 buf[1] = low_output;
3662 buf[2] = low_direction;
3664 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK)
3665 || (bytes_written != 3))
3667 LOG_ERROR("couldn't initialize Signalyzer-H layout");
3668 return ERROR_JTAG_INIT_FAILED;
3671 #if BUILD_FT2232_FTD2XX == 1
3672 if (ftdi_device == FT_DEVICE_2232H)
3674 /* initialize high byte of controller for jtag operation */
3676 buf[1] = high_output;
3677 buf[2] = high_direction;
3679 if ((ft2232_write(buf, 3, &bytes_written) != ERROR_OK)
3680 || (bytes_written != 3))
3682 LOG_ERROR("couldn't initialize Signalyzer-H layout");
3683 return ERROR_JTAG_INIT_FAILED;
3686 #elif BUILD_FT2232_LIBFTDI == 1
3687 if (ftdi_device == TYPE_2232H)
3689 /* initialize high byte of controller for jtag operation */
3691 buf[1] = high_output;
3692 buf[2] = high_direction;
3694 if ((ft2232_write(buf, 3, &bytes_written) != ERROR_OK)
3695 || (bytes_written != 3))
3697 LOG_ERROR("couldn't initialize Signalyzer-H layout");
3698 return ERROR_JTAG_INIT_FAILED;
3705 static void signalyzer_h_reset(int trst, int srst)
3707 enum reset_types jtag_reset_config = jtag_get_reset_config();
3709 /* ADAPTOR: EM_LT16_A */
3710 if (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_LT16_A)
3714 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3715 /* switch to output pin (output is low) */
3716 low_direction |= nTRSTnOE;
3718 /* switch output low */
3719 low_output &= ~nTRST;
3723 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3724 /* switch to input pin (high-Z + internal
3725 * and external pullup) */
3726 low_direction &= ~nTRSTnOE;
3728 /* switch output high */
3729 low_output |= nTRST;
3734 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3735 /* switch output low */
3736 low_output &= ~nSRST;
3738 /* switch to output pin (output is low) */
3739 low_direction |= nSRSTnOE;
3743 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3744 /* switch output high */
3745 low_output |= nSRST;
3747 /* switch to input pin (high-Z) */
3748 low_direction &= ~nSRSTnOE;
3751 /* command "set data bits low byte" */
3753 buffer_write(low_output);
3754 buffer_write(low_direction);
3755 LOG_DEBUG("trst: %i, srst: %i, low_output: 0x%2.2x, "
3756 "low_direction: 0x%2.2x",
3757 trst, srst, low_output, low_direction);
3759 /* ADAPTOR: EM_ARM_JTAG, EM_ARM_JTAG_P, EM_JTAG, EM_JTAG_P */
3760 else if ((signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG) ||
3761 (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG_P) ||
3762 (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_JTAG) ||
3763 (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_JTAG_P))
3767 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3768 high_output &= ~nTRSTnOE;
3770 high_output &= ~nTRST;
3774 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3775 high_output |= nTRSTnOE;
3777 high_output |= nTRST;
3782 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3783 high_output &= ~nSRST;
3785 high_output &= ~nSRSTnOE;
3789 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3790 high_output |= nSRST;
3792 high_output |= nSRSTnOE;
3795 /* command "set data bits high byte" */
3797 buffer_write(high_output);
3798 buffer_write(high_direction);
3799 LOG_INFO("trst: %i, srst: %i, high_output: 0x%2.2x, "
3800 "high_direction: 0x%2.2x",
3801 trst, srst, high_output, high_direction);
3803 else if (signalyzer_h_adapter_type == 0x0000)
3807 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3808 /* switch to output pin (output is low) */
3809 low_direction |= nTRSTnOE;
3811 /* switch output low */
3812 low_output &= ~nTRST;
3816 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3817 /* switch to input pin (high-Z + internal
3818 * and external pullup) */
3819 low_direction &= ~nTRSTnOE;
3821 /* switch output high */
3822 low_output |= nTRST;
3827 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3828 /* switch output low */
3829 low_output &= ~nSRST;
3831 /* switch to output pin (output is low) */
3832 low_direction |= nSRSTnOE;
3836 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3837 /* switch output high */
3838 low_output |= nSRST;
3840 /* switch to input pin (high-Z) */
3841 low_direction &= ~nSRSTnOE;
3844 /* command "set data bits low byte" */
3846 buffer_write(low_output);
3847 buffer_write(low_direction);
3848 LOG_DEBUG("trst: %i, srst: %i, low_output: 0x%2.2x, "
3849 "low_direction: 0x%2.2x",
3850 trst, srst, low_output, low_direction);
3854 static void signalyzer_h_blink(void)
3856 signalyzer_h_led_set(signalyzer_h_side, SIGNALYZER_LED_RED, 100, 0, 1);
3859 /********************************************************************
3860 * Support for KT-LINK
3861 * JTAG adapter from KRISTECH
3862 * http://www.kristech.eu
3863 *******************************************************************/
3864 static int ktlink_init(void)
3867 uint32_t bytes_written;
3868 uint8_t swd_en = 0x20; //0x20 SWD disable, 0x00 SWD enable (ADBUS5)
3870 low_output = 0x08 | swd_en; // value; TMS=1,TCK=0,TDI=0,SWD=swd_en
3871 low_direction = 0x3B; // out=1; TCK/TDI/TMS=out,TDO=in,SWD=out,RTCK=in,SRSTIN=in
3873 // initialize low port
3874 buf[0] = 0x80; // command "set data bits low byte"
3875 buf[1] = low_output;
3876 buf[2] = low_direction;
3877 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
3879 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
3881 LOG_ERROR("couldn't initialize FT2232 with 'ktlink' layout");
3882 return ERROR_JTAG_INIT_FAILED;
3890 high_output = 0x80; // turn LED on
3891 high_direction = 0xFF; // all outputs
3893 enum reset_types jtag_reset_config = jtag_get_reset_config();
3895 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN) {
3896 high_output |= nTRSTnOE;
3897 high_output &= ~nTRST;
3899 high_output &= ~nTRSTnOE;
3900 high_output |= nTRST;
3903 if (jtag_reset_config & RESET_SRST_PUSH_PULL) {
3904 high_output &= ~nSRSTnOE;
3905 high_output |= nSRST;
3907 high_output |= nSRSTnOE;
3908 high_output &= ~nSRST;
3911 // initialize high port
3912 buf[0] = 0x82; // command "set data bits high byte"
3913 buf[1] = high_output; // value
3914 buf[2] = high_direction;
3915 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
3917 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
3919 LOG_ERROR("couldn't initialize FT2232 with 'ktlink' layout");
3920 return ERROR_JTAG_INIT_FAILED;
3926 static void ktlink_reset(int trst, int srst)
3928 enum reset_types jtag_reset_config = jtag_get_reset_config();
3931 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3932 high_output &= ~nTRSTnOE;
3934 high_output &= ~nTRST;
3935 } else if (trst == 0) {
3936 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3937 high_output |= nTRSTnOE;
3939 high_output |= nTRST;
3943 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3944 high_output &= ~nSRST;
3946 high_output &= ~nSRSTnOE;
3947 } else if (srst == 0) {
3948 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3949 high_output |= nSRST;
3951 high_output |= nSRSTnOE;
3954 buffer_write(0x82); // command "set data bits high byte"
3955 buffer_write(high_output);
3956 buffer_write(high_direction);
3957 LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,high_direction);
3960 static void ktlink_blink(void)
3962 /* LED connected to ACBUS7 */
3963 if (high_output & 0x80)
3964 high_output &= 0x7F;
3966 high_output |= 0x80;
3968 buffer_write(0x82); // command "set data bits high byte"
3969 buffer_write(high_output);
3970 buffer_write(high_direction);
3973 static int ft2232_register_commands(struct command_context_s* cmd_ctx)
3975 register_command(cmd_ctx, NULL, "ft2232_device_desc",
3976 ft2232_handle_device_desc_command, COMMAND_CONFIG,
3977 "the USB device description of the FTDI FT2232 device");
3978 register_command(cmd_ctx, NULL, "ft2232_serial",
3979 ft2232_handle_serial_command, COMMAND_CONFIG,
3980 "the serial number of the FTDI FT2232 device");
3981 register_command(cmd_ctx, NULL, "ft2232_layout",
3982 ft2232_handle_layout_command, COMMAND_CONFIG,
3983 "the layout of the FT2232 GPIO signals used "
3984 "to control output-enables and reset signals");
3985 register_command(cmd_ctx, NULL, "ft2232_vid_pid",
3986 ft2232_handle_vid_pid_command, COMMAND_CONFIG,
3987 "the vendor ID and product ID of the FTDI FT2232 device");
3988 register_command(cmd_ctx, NULL, "ft2232_latency",
3989 ft2232_handle_latency_command, COMMAND_CONFIG,
3990 "set the FT2232 latency timer to a new value");
3996 struct jtag_interface ft2232_interface = {
3998 .register_commands = &ft2232_register_commands,
3999 .init = &ft2232_init,
4000 .quit = &ft2232_quit,
4001 .speed = &ft2232_speed,
4002 .speed_div = &ft2232_speed_div,
4004 .execute_queue = &ft2232_execute_queue,