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 };
93 static int ft2232_execute_queue(void);
94 static int ft2232_speed(int speed);
95 static int ft2232_speed_div(int speed, int* khz);
96 static int ft2232_khz(int khz, int* jtag_speed);
97 static int ft2232_register_commands(struct command_context_s* cmd_ctx);
98 static int ft2232_init(void);
99 static int ft2232_quit(void);
101 static int ft2232_handle_device_desc_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc);
102 static int ft2232_handle_serial_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc);
103 static int ft2232_handle_layout_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc);
104 static int ft2232_handle_vid_pid_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc);
105 static int ft2232_handle_latency_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc);
108 * Send out \a num_cycles on the TCK line while the TAP(s) are in a
109 * stable state. Calling code must ensure that current state is stable,
110 * that verification is not done in here.
112 * @param num_cycles The number of clocks cycles to send.
113 * @param cmd The command to send.
115 * @returns ERROR_OK on success, or ERROR_JTAG_QUEUE_FAILED on failure.
117 static int ft2232_stableclocks(int num_cycles, jtag_command_t* cmd);
119 static char * ft2232_device_desc_A = NULL;
120 static char* ft2232_device_desc = NULL;
121 static char* ft2232_serial = NULL;
122 static char* ft2232_layout = NULL;
123 static uint8_t ft2232_latency = 2;
124 static unsigned ft2232_max_tck = FTDI_2232C_MAX_TCK;
126 #define MAX_USB_IDS 8
127 /* vid = pid = 0 marks the end of the list */
128 static uint16_t ft2232_vid[MAX_USB_IDS + 1] = { 0x0403, 0 };
129 static uint16_t ft2232_pid[MAX_USB_IDS + 1] = { 0x6010, 0 };
131 typedef struct ft2232_layout_s
135 void (*reset)(int trst, int srst);
139 /* init procedures for supported layouts */
140 static int usbjtag_init(void);
141 static int jtagkey_init(void);
142 static int olimex_jtag_init(void);
143 static int flyswatter_init(void);
144 static int turtle_init(void);
145 static int comstick_init(void);
146 static int stm32stick_init(void);
147 static int axm0432_jtag_init(void);
148 static int sheevaplug_init(void);
149 static int icebear_jtag_init(void);
150 static int cortino_jtag_init(void);
151 static int signalyzer_h_init(void);
152 static int ktlink_init(void);
154 /* reset procedures for supported layouts */
155 static void usbjtag_reset(int trst, int srst);
156 static void jtagkey_reset(int trst, int srst);
157 static void olimex_jtag_reset(int trst, int srst);
158 static void flyswatter_reset(int trst, int srst);
159 static void turtle_reset(int trst, int srst);
160 static void comstick_reset(int trst, int srst);
161 static void stm32stick_reset(int trst, int srst);
162 static void axm0432_jtag_reset(int trst, int srst);
163 static void sheevaplug_reset(int trst, int srst);
164 static void icebear_jtag_reset(int trst, int srst);
165 static void signalyzer_h_reset(int trst, int srst);
166 static void ktlink_reset(int trst, int srst);
168 /* blink procedures for layouts that support a blinking led */
169 static void olimex_jtag_blink(void);
170 static void flyswatter_jtag_blink(void);
171 static void turtle_jtag_blink(void);
172 static void signalyzer_h_blink(void);
173 static void ktlink_blink(void);
175 static const ft2232_layout_t ft2232_layouts[] =
177 { "usbjtag", usbjtag_init, usbjtag_reset, NULL },
178 { "jtagkey", jtagkey_init, jtagkey_reset, NULL },
179 { "jtagkey_prototype_v1", jtagkey_init, jtagkey_reset, NULL },
180 { "oocdlink", jtagkey_init, jtagkey_reset, NULL },
181 { "signalyzer", usbjtag_init, usbjtag_reset, NULL },
182 { "evb_lm3s811", usbjtag_init, usbjtag_reset, NULL },
183 { "luminary_icdi", usbjtag_init, usbjtag_reset, NULL },
184 { "olimex-jtag", olimex_jtag_init, olimex_jtag_reset, olimex_jtag_blink },
185 { "flyswatter", flyswatter_init, flyswatter_reset, flyswatter_jtag_blink },
186 { "turtelizer2", turtle_init, turtle_reset, turtle_jtag_blink },
187 { "comstick", comstick_init, comstick_reset, NULL },
188 { "stm32stick", stm32stick_init, stm32stick_reset, NULL },
189 { "axm0432_jtag", axm0432_jtag_init, axm0432_jtag_reset, NULL },
190 { "sheevaplug", sheevaplug_init, sheevaplug_reset, NULL },
191 { "icebear", icebear_jtag_init, icebear_jtag_reset, NULL },
192 { "cortino", cortino_jtag_init, comstick_reset, NULL },
193 { "signalyzer-h", signalyzer_h_init, signalyzer_h_reset, signalyzer_h_blink },
194 { "ktlink", ktlink_init, ktlink_reset, ktlink_blink },
195 { NULL, NULL, NULL, NULL },
198 static uint8_t nTRST, nTRSTnOE, nSRST, nSRSTnOE;
200 static const ft2232_layout_t *layout;
201 static uint8_t low_output = 0x0;
202 static uint8_t low_direction = 0x0;
203 static uint8_t high_output = 0x0;
204 static uint8_t high_direction = 0x0;
206 #if BUILD_FT2232_FTD2XX == 1
207 static FT_HANDLE ftdih = NULL;
208 static FT_DEVICE ftdi_device = 0;
209 #elif BUILD_FT2232_LIBFTDI == 1
210 static struct ftdi_context ftdic;
211 static enum ftdi_chip_type ftdi_device;
214 static jtag_command_t* first_unsent; /* next command that has to be sent */
215 static int require_send;
217 /* http://urjtag.wiki.sourceforge.net/Cable + FT2232 says:
219 "There is a significant difference between libftdi and libftd2xx. The latter
220 one allows to schedule up to 64*64 bytes of result data while libftdi fails
221 with more than 4*64. As a consequence, the FT2232 driver is forced to
222 perform around 16x more USB transactions for long command streams with TDO
223 capture when running with libftdi."
226 #define FT2232_BUFFER_SIZE 131072
227 a comment would have been nice.
230 #define FT2232_BUFFER_SIZE 131072
232 static uint8_t* ft2232_buffer = NULL;
233 static int ft2232_buffer_size = 0;
234 static int ft2232_read_pointer = 0;
235 static int ft2232_expect_read = 0;
238 * Function buffer_write
239 * writes a byte into the byte buffer, "ft2232_buffer", which must be sent later.
240 * @param val is the byte to send.
242 static inline void buffer_write(uint8_t val)
244 assert(ft2232_buffer);
245 assert((unsigned) ft2232_buffer_size < (unsigned) FT2232_BUFFER_SIZE);
246 ft2232_buffer[ft2232_buffer_size++] = val;
250 * Function buffer_read
251 * returns a byte from the byte buffer.
253 static inline uint8_t buffer_read(void)
255 assert(ft2232_buffer);
256 assert(ft2232_read_pointer < ft2232_buffer_size);
257 return ft2232_buffer[ft2232_read_pointer++];
261 * Clocks out \a bit_count bits on the TMS line, starting with the least
262 * significant bit of tms_bits and progressing to more significant bits.
263 * Rigorous state transition logging is done here via tap_set_state().
265 * @param mpsse_cmd One of the MPSSE TMS oriented commands such as
266 * 0x4b or 0x6b. See the MPSSE spec referenced above for their
267 * functionality. The MPSSE command "Clock Data to TMS/CS Pin (no Read)"
268 * is often used for this, 0x4b.
270 * @param tms_bits Holds the sequence of bits to send.
271 * @param tms_count Tells how many bits in the sequence.
272 * @param tdi_bit A single bit to pass on to TDI before the first TCK
273 * cycle and held static for the duration of TMS clocking.
275 * See the MPSSE spec referenced above.
277 static void clock_tms(uint8_t mpsse_cmd, int tms_bits, int tms_count, bool tdi_bit)
281 int tms_ndx; /* bit index into tms_byte */
283 assert(tms_count > 0);
285 DEBUG_JTAG_IO("mpsse cmd=%02x, tms_bits = 0x%08x, bit_count=%d",
286 mpsse_cmd, tms_bits, tms_count);
288 for (tms_byte = tms_ndx = i = 0; i < tms_count; ++i, tms_bits>>=1)
290 bool bit = tms_bits & 1;
293 tms_byte |= (1 << tms_ndx);
295 /* always do state transitions in public view */
296 tap_set_state(tap_state_transition(tap_get_state(), bit));
298 /* we wrote a bit to tms_byte just above, increment bit index. if bit was zero
303 if (tms_ndx == 7 || i == tms_count-1)
305 buffer_write(mpsse_cmd);
306 buffer_write(tms_ndx - 1);
308 /* Bit 7 of the byte is passed on to TDI/DO before the first TCK/SK of
309 TMS/CS and is held static for the duration of TMS/CS clocking.
311 buffer_write(tms_byte | (tdi_bit << 7));
317 * Function get_tms_buffer_requirements
318 * returns what clock_tms() will consume if called with
321 static inline int get_tms_buffer_requirements(int bit_count)
323 return ((bit_count + 6)/7) * 3;
327 * Function move_to_state
328 * moves the TAP controller from the current state to a
329 * \a goal_state through a path given by tap_get_tms_path(). State transition
330 * logging is performed by delegation to clock_tms().
332 * @param goal_state is the destination state for the move.
334 static void move_to_state(tap_state_t goal_state)
336 tap_state_t start_state = tap_get_state();
338 /* goal_state is 1/2 of a tuple/pair of states which allow convenient
339 lookup of the required TMS pattern to move to this state from the
343 /* do the 2 lookups */
344 int tms_bits = tap_get_tms_path(start_state, goal_state);
345 int tms_count = tap_get_tms_path_len(start_state, goal_state);
347 DEBUG_JTAG_IO("start=%s goal=%s", tap_state_name(start_state), tap_state_name(goal_state));
349 clock_tms(0x4b, tms_bits, tms_count, 0);
352 jtag_interface_t ft2232_interface =
355 .execute_queue = ft2232_execute_queue,
356 .speed = ft2232_speed,
357 .speed_div = ft2232_speed_div,
359 .register_commands = ft2232_register_commands,
364 static int ft2232_write(uint8_t* buf, int size, uint32_t* bytes_written)
366 #if BUILD_FT2232_FTD2XX == 1
368 DWORD dw_bytes_written;
369 if ((status = FT_Write(ftdih, buf, size, &dw_bytes_written)) != FT_OK)
371 *bytes_written = dw_bytes_written;
372 LOG_ERROR("FT_Write returned: %lu", status);
373 return ERROR_JTAG_DEVICE_ERROR;
377 *bytes_written = dw_bytes_written;
380 #elif BUILD_FT2232_LIBFTDI == 1
382 if ((retval = ftdi_write_data(&ftdic, buf, size)) < 0)
385 LOG_ERROR("ftdi_write_data: %s", ftdi_get_error_string(&ftdic));
386 return ERROR_JTAG_DEVICE_ERROR;
390 *bytes_written = retval;
396 static int ft2232_read(uint8_t* buf, uint32_t size, uint32_t* bytes_read)
398 #if BUILD_FT2232_FTD2XX == 1
404 while ((*bytes_read < size) && timeout--)
406 if ((status = FT_Read(ftdih, buf + *bytes_read, size -
407 *bytes_read, &dw_bytes_read)) != FT_OK)
410 LOG_ERROR("FT_Read returned: %lu", status);
411 return ERROR_JTAG_DEVICE_ERROR;
413 *bytes_read += dw_bytes_read;
416 #elif BUILD_FT2232_LIBFTDI == 1
418 int timeout = LIBFTDI_READ_RETRY_COUNT;
421 while ((*bytes_read < size) && timeout--)
423 if ((retval = ftdi_read_data(&ftdic, buf + *bytes_read, size - *bytes_read)) < 0)
426 LOG_ERROR("ftdi_read_data: %s", ftdi_get_error_string(&ftdic));
427 return ERROR_JTAG_DEVICE_ERROR;
429 *bytes_read += retval;
434 if (*bytes_read < size)
436 LOG_ERROR("couldn't read enough bytes from "
437 "FT2232 device (%i < %i)",
438 (unsigned)*bytes_read,
440 return ERROR_JTAG_DEVICE_ERROR;
446 static bool ft2232_device_is_highspeed(void)
448 #if BUILD_FT2232_FTD2XX == 1
449 return (ftdi_device == FT_DEVICE_2232H) || (ftdi_device == FT_DEVICE_4232H);
450 #elif BUILD_FT2232_LIBFTDI == 1
451 return (ftdi_device == TYPE_2232H || ftdi_device == TYPE_4232H);
456 * Commands that only apply to the FT2232H and FT4232H devices.
457 * See chapter 6 in http://www.ftdichip.com/Documents/AppNotes/
458 * AN_108_Command_Processor_for_MPSSE_and_MCU_Host_Bus_Emulation_Modes.pdf
461 static int ft2232h_ft4232h_adaptive_clocking(bool enable)
463 uint8_t buf = enable ? 0x96 : 0x97;
464 LOG_DEBUG("%2.2x", buf);
466 uint32_t bytes_written;
467 int retval = ft2232_write(&buf, 1, &bytes_written);
468 if ((ERROR_OK != retval) || (bytes_written != 1))
470 LOG_ERROR("couldn't write command to %s adaptive clocking"
471 , enable ? "enable" : "disable");
479 * Enable/disable the clk divide by 5 of the 60MHz master clock.
480 * This result in a JTAG clock speed range of 91.553Hz-6MHz
481 * respective 457.763Hz-30MHz.
483 static int ft2232h_ft4232h_clk_divide_by_5(bool enable)
485 uint32_t bytes_written;
486 uint8_t buf = enable ? 0x8b : 0x8a;
487 int retval = ft2232_write(&buf, 1, &bytes_written);
488 if ((ERROR_OK != retval) || (bytes_written != 1))
490 LOG_ERROR("couldn't write command to %s clk divide by 5"
491 , enable ? "enable" : "disable");
492 return ERROR_JTAG_INIT_FAILED;
494 ft2232_max_tck = enable ? FTDI_2232C_MAX_TCK : FTDI_2232H_4232H_MAX_TCK;
495 LOG_INFO("max TCK change to: %u kHz", ft2232_max_tck);
500 static int ft2232_speed(int speed)
504 uint32_t bytes_written;
507 bool enable_adaptive_clocking = (RTCK_SPEED == speed);
508 if (ft2232_device_is_highspeed())
509 retval = ft2232h_ft4232h_adaptive_clocking(enable_adaptive_clocking);
510 else if (enable_adaptive_clocking)
512 LOG_ERROR("ft2232 device %lu does not support RTCK"
513 , (long unsigned int)ftdi_device);
517 if ((enable_adaptive_clocking) || (ERROR_OK != retval))
520 buf[0] = 0x86; /* command "set divisor" */
521 buf[1] = speed & 0xff; /* valueL (0 = 6MHz, 1 = 3MHz, 2 = 2.0MHz, ...*/
522 buf[2] = (speed >> 8) & 0xff; /* valueH */
524 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
525 if (((retval = ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
527 LOG_ERROR("couldn't set FT2232 TCK speed");
534 static int ft2232_speed_div(int speed, int* khz)
536 /* Take a look in the FT2232 manual,
537 * AN2232C-01 Command Processor for
538 * MPSSE and MCU Host Bus. Chapter 3.8 */
540 *khz = (RTCK_SPEED == speed) ? 0 : ft2232_max_tck / (1 + speed);
545 static int ft2232_khz(int khz, int* jtag_speed)
549 if (ft2232_device_is_highspeed())
551 *jtag_speed = RTCK_SPEED;
556 LOG_DEBUG("RCLK not supported");
561 /* Take a look in the FT2232 manual,
562 * AN2232C-01 Command Processor for
563 * MPSSE and MCU Host Bus. Chapter 3.8
565 * We will calc here with a multiplier
566 * of 10 for better rounding later. */
568 /* Calc speed, (ft2232_max_tck / khz) - 1 */
569 /* Use 65000 for better rounding */
570 *jtag_speed = ((ft2232_max_tck*10) / khz) - 10;
572 /* Add 0.9 for rounding */
575 /* Calc real speed */
576 *jtag_speed = *jtag_speed / 10;
578 /* Check if speed is greater than 0 */
584 /* Check max value */
585 if (*jtag_speed > 0xFFFF)
587 *jtag_speed = 0xFFFF;
593 static int ft2232_register_commands(struct command_context_s* cmd_ctx)
595 register_command(cmd_ctx, NULL, "ft2232_device_desc", ft2232_handle_device_desc_command,
596 COMMAND_CONFIG, "the USB device description of the FTDI FT2232 device");
597 register_command(cmd_ctx, NULL, "ft2232_serial", ft2232_handle_serial_command,
598 COMMAND_CONFIG, "the serial number of the FTDI FT2232 device");
599 register_command(cmd_ctx, NULL, "ft2232_layout", ft2232_handle_layout_command,
600 COMMAND_CONFIG, "the layout of the FT2232 GPIO signals used to control output-enables and reset signals");
601 register_command(cmd_ctx, NULL, "ft2232_vid_pid", ft2232_handle_vid_pid_command,
602 COMMAND_CONFIG, "the vendor ID and product ID of the FTDI FT2232 device");
603 register_command(cmd_ctx, NULL, "ft2232_latency", ft2232_handle_latency_command,
604 COMMAND_CONFIG, "set the FT2232 latency timer to a new value");
608 static void ft2232_end_state(tap_state_t state)
610 if (tap_is_state_stable(state))
611 tap_set_end_state(state);
614 LOG_ERROR("BUG: %s is not a stable end state", tap_state_name(state));
619 static void ft2232_read_scan(enum scan_type type, uint8_t* buffer, int scan_size)
621 int num_bytes = (scan_size + 7) / 8;
622 int bits_left = scan_size;
625 while (num_bytes-- > 1)
627 buffer[cur_byte++] = buffer_read();
631 buffer[cur_byte] = 0x0;
633 /* There is one more partial byte left from the clock data in/out instructions */
636 buffer[cur_byte] = buffer_read() >> 1;
638 /* 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 */
639 buffer[cur_byte] = (buffer[cur_byte] | (((buffer_read()) << 1) & 0x80)) >> (8 - bits_left);
642 static void ft2232_debug_dump_buffer(void)
648 for (i = 0; i < ft2232_buffer_size; i++)
650 line_p += snprintf(line_p, 256 - (line_p - line), "%2.2x ", ft2232_buffer[i]);
653 LOG_DEBUG("%s", line);
659 LOG_DEBUG("%s", line);
662 static int ft2232_send_and_recv(jtag_command_t* first, jtag_command_t* last)
669 uint32_t bytes_written = 0;
670 uint32_t bytes_read = 0;
672 #ifdef _DEBUG_USB_IO_
673 struct timeval start, inter, inter2, end;
674 struct timeval d_inter, d_inter2, d_end;
677 #ifdef _DEBUG_USB_COMMS_
678 LOG_DEBUG("write buffer (size %i):", ft2232_buffer_size);
679 ft2232_debug_dump_buffer();
682 #ifdef _DEBUG_USB_IO_
683 gettimeofday(&start, NULL);
686 if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
688 LOG_ERROR("couldn't write MPSSE commands to FT2232");
692 #ifdef _DEBUG_USB_IO_
693 gettimeofday(&inter, NULL);
696 if (ft2232_expect_read)
698 /* FIXME this "timeout" is never changed ... */
699 int timeout = LIBFTDI_READ_RETRY_COUNT;
700 ft2232_buffer_size = 0;
702 #ifdef _DEBUG_USB_IO_
703 gettimeofday(&inter2, NULL);
706 if ((retval = ft2232_read(ft2232_buffer, ft2232_expect_read, &bytes_read)) != ERROR_OK)
708 LOG_ERROR("couldn't read from FT2232");
712 #ifdef _DEBUG_USB_IO_
713 gettimeofday(&end, NULL);
715 timeval_subtract(&d_inter, &inter, &start);
716 timeval_subtract(&d_inter2, &inter2, &start);
717 timeval_subtract(&d_end, &end, &start);
719 LOG_INFO("inter: %u.%06u, inter2: %u.%06u end: %u.%06u",
720 (unsigned)d_inter.tv_sec, (unsigned)d_inter.tv_usec,
721 (unsigned)d_inter2.tv_sec, (unsigned)d_inter2.tv_usec,
722 (unsigned)d_end.tv_sec, (unsigned)d_end.tv_usec);
725 ft2232_buffer_size = bytes_read;
727 if (ft2232_expect_read != ft2232_buffer_size)
729 LOG_ERROR("ft2232_expect_read (%i) != "
730 "ft2232_buffer_size (%i) "
734 LIBFTDI_READ_RETRY_COUNT - timeout);
735 ft2232_debug_dump_buffer();
740 #ifdef _DEBUG_USB_COMMS_
741 LOG_DEBUG("read buffer (%i retries): %i bytes",
742 LIBFTDI_READ_RETRY_COUNT - timeout,
744 ft2232_debug_dump_buffer();
748 ft2232_expect_read = 0;
749 ft2232_read_pointer = 0;
751 /* return ERROR_OK, unless a jtag_read_buffer returns a failed check
752 * that wasn't handled by a caller-provided error handler
762 type = jtag_scan_type(cmd->cmd.scan);
763 if (type != SCAN_OUT)
765 scan_size = jtag_scan_size(cmd->cmd.scan);
766 buffer = calloc(CEIL(scan_size, 8), 1);
767 ft2232_read_scan(type, buffer, scan_size);
768 if (jtag_read_buffer(buffer, cmd->cmd.scan) != ERROR_OK)
769 retval = ERROR_JTAG_QUEUE_FAILED;
781 ft2232_buffer_size = 0;
787 * Function ft2232_add_pathmove
788 * moves the TAP controller from the current state to a new state through the
789 * given path, where path is an array of tap_state_t's.
791 * @param path is an array of tap_stat_t which gives the states to traverse through
792 * ending with the last state at path[num_states-1]
793 * @param num_states is the count of state steps to move through
795 static void ft2232_add_pathmove(tap_state_t* path, int num_states)
799 assert((unsigned) num_states <= 32u); /* tms_bits only holds 32 bits */
803 /* this loop verifies that the path is legal and logs each state in the path */
806 unsigned char tms_byte = 0; /* zero this on each MPSSE batch */
808 int num_states_batch = num_states > 7 ? 7 : num_states;
810 /* command "Clock Data to TMS/CS Pin (no Read)" */
813 /* number of states remaining */
814 buffer_write(num_states_batch - 1);
816 while (num_states_batch--) {
817 /* either TMS=0 or TMS=1 must work ... */
818 if (tap_state_transition(tap_get_state(), false)
819 == path[state_count])
820 buf_set_u32(&tms_byte, bit_count++, 1, 0x0);
821 else if (tap_state_transition(tap_get_state(), true)
822 == path[state_count])
823 buf_set_u32(&tms_byte, bit_count++, 1, 0x1);
825 /* ... or else the caller goofed BADLY */
827 LOG_ERROR("BUG: %s -> %s isn't a valid "
828 "TAP state transition",
829 tap_state_name(tap_get_state()),
830 tap_state_name(path[state_count]));
834 tap_set_state(path[state_count]);
839 buffer_write(tms_byte);
841 tap_set_end_state(tap_get_state());
844 static void ft2232_add_scan(bool ir_scan, enum scan_type type, uint8_t* buffer, int scan_size)
846 int num_bytes = (scan_size + 7) / 8;
847 int bits_left = scan_size;
853 if (tap_get_state() != TAP_DRSHIFT)
855 move_to_state(TAP_DRSHIFT);
860 if (tap_get_state() != TAP_IRSHIFT)
862 move_to_state(TAP_IRSHIFT);
866 /* add command for complete bytes */
867 while (num_bytes > 1)
872 /* Clock Data Bytes In and Out LSB First */
874 /* LOG_DEBUG("added TDI bytes (io %i)", num_bytes); */
876 else if (type == SCAN_OUT)
878 /* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */
880 /* LOG_DEBUG("added TDI bytes (o)"); */
882 else if (type == SCAN_IN)
884 /* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */
886 /* LOG_DEBUG("added TDI bytes (i %i)", num_bytes); */
889 thisrun_bytes = (num_bytes > 65537) ? 65536 : (num_bytes - 1);
890 num_bytes -= thisrun_bytes;
892 buffer_write((uint8_t) (thisrun_bytes - 1));
893 buffer_write((uint8_t) ((thisrun_bytes - 1) >> 8));
897 /* add complete bytes */
898 while (thisrun_bytes-- > 0)
900 buffer_write(buffer[cur_byte++]);
904 else /* (type == SCAN_IN) */
906 bits_left -= 8 * (thisrun_bytes);
910 /* the most signifcant bit is scanned during TAP movement */
912 last_bit = (buffer[cur_byte] >> (bits_left - 1)) & 0x1;
916 /* process remaining bits but the last one */
921 /* Clock Data Bits In and Out LSB First */
923 /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
925 else if (type == SCAN_OUT)
927 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
929 /* LOG_DEBUG("added TDI bits (o)"); */
931 else if (type == SCAN_IN)
933 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
935 /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
938 buffer_write(bits_left - 2);
940 buffer_write(buffer[cur_byte]);
943 if ((ir_scan && (tap_get_end_state() == TAP_IRSHIFT))
944 || (!ir_scan && (tap_get_end_state() == TAP_DRSHIFT)))
948 /* Clock Data Bits In and Out LSB First */
950 /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
952 else if (type == SCAN_OUT)
954 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
956 /* LOG_DEBUG("added TDI bits (o)"); */
958 else if (type == SCAN_IN)
960 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
962 /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
965 buffer_write(last_bit);
973 /* move from Shift-IR/DR to end state */
974 if (type != SCAN_OUT)
976 /* We always go to the PAUSE state in two step at the end of an IN or IO scan */
977 /* This must be coordinated with the bit shifts in ft2232_read_scan */
980 /* Clock Data to TMS/CS Pin with Read */
985 tms_bits = tap_get_tms_path(tap_get_state(), tap_get_end_state());
986 tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
987 /* Clock Data to TMS/CS Pin (no Read) */
991 DEBUG_JTAG_IO("finish %s", (type == SCAN_OUT) ? "without read" : "via PAUSE");
992 clock_tms(mpsse_cmd, tms_bits, tms_count, last_bit);
995 if (tap_get_state() != tap_get_end_state())
997 move_to_state(tap_get_end_state());
1001 static int ft2232_large_scan(scan_command_t* cmd, enum scan_type type, uint8_t* buffer, int scan_size)
1003 int num_bytes = (scan_size + 7) / 8;
1004 int bits_left = scan_size;
1007 uint8_t* receive_buffer = malloc(CEIL(scan_size, 8));
1008 uint8_t* receive_pointer = receive_buffer;
1009 uint32_t bytes_written;
1010 uint32_t bytes_read;
1012 int thisrun_read = 0;
1016 LOG_ERROR("BUG: large IR scans are not supported");
1020 if (tap_get_state() != TAP_DRSHIFT)
1022 move_to_state(TAP_DRSHIFT);
1025 if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
1027 LOG_ERROR("couldn't write MPSSE commands to FT2232");
1030 LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i",
1031 ft2232_buffer_size, (int)bytes_written);
1032 ft2232_buffer_size = 0;
1034 /* add command for complete bytes */
1035 while (num_bytes > 1)
1039 if (type == SCAN_IO)
1041 /* Clock Data Bytes In and Out LSB First */
1043 /* LOG_DEBUG("added TDI bytes (io %i)", num_bytes); */
1045 else if (type == SCAN_OUT)
1047 /* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */
1049 /* LOG_DEBUG("added TDI bytes (o)"); */
1051 else if (type == SCAN_IN)
1053 /* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */
1055 /* LOG_DEBUG("added TDI bytes (i %i)", num_bytes); */
1058 thisrun_bytes = (num_bytes > 65537) ? 65536 : (num_bytes - 1);
1059 thisrun_read = thisrun_bytes;
1060 num_bytes -= thisrun_bytes;
1061 buffer_write((uint8_t) (thisrun_bytes - 1));
1062 buffer_write((uint8_t) ((thisrun_bytes - 1) >> 8));
1064 if (type != SCAN_IN)
1066 /* add complete bytes */
1067 while (thisrun_bytes-- > 0)
1069 buffer_write(buffer[cur_byte]);
1074 else /* (type == SCAN_IN) */
1076 bits_left -= 8 * (thisrun_bytes);
1079 if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
1081 LOG_ERROR("couldn't write MPSSE commands to FT2232");
1084 LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i",
1086 (int)bytes_written);
1087 ft2232_buffer_size = 0;
1089 if (type != SCAN_OUT)
1091 if ((retval = ft2232_read(receive_pointer, thisrun_read, &bytes_read)) != ERROR_OK)
1093 LOG_ERROR("couldn't read from FT2232");
1096 LOG_DEBUG("thisrun_read: %i, bytes_read: %i",
1099 receive_pointer += bytes_read;
1105 /* the most signifcant bit is scanned during TAP movement */
1106 if (type != SCAN_IN)
1107 last_bit = (buffer[cur_byte] >> (bits_left - 1)) & 0x1;
1111 /* process remaining bits but the last one */
1114 if (type == SCAN_IO)
1116 /* Clock Data Bits In and Out LSB First */
1118 /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
1120 else if (type == SCAN_OUT)
1122 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
1124 /* LOG_DEBUG("added TDI bits (o)"); */
1126 else if (type == SCAN_IN)
1128 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
1130 /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
1132 buffer_write(bits_left - 2);
1133 if (type != SCAN_IN)
1134 buffer_write(buffer[cur_byte]);
1136 if (type != SCAN_OUT)
1140 if (tap_get_end_state() == TAP_DRSHIFT)
1142 if (type == SCAN_IO)
1144 /* Clock Data Bits In and Out LSB First */
1146 /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
1148 else if (type == SCAN_OUT)
1150 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
1152 /* LOG_DEBUG("added TDI bits (o)"); */
1154 else if (type == SCAN_IN)
1156 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
1158 /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
1161 buffer_write(last_bit);
1165 int tms_bits = tap_get_tms_path(tap_get_state(), tap_get_end_state());
1166 int tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
1169 /* move from Shift-IR/DR to end state */
1170 if (type != SCAN_OUT)
1172 /* Clock Data to TMS/CS Pin with Read */
1174 /* LOG_DEBUG("added TMS scan (read)"); */
1178 /* Clock Data to TMS/CS Pin (no Read) */
1180 /* LOG_DEBUG("added TMS scan (no read)"); */
1183 DEBUG_JTAG_IO("finish, %s", (type == SCAN_OUT) ? "no read" : "read");
1184 clock_tms(mpsse_cmd, tms_bits, tms_count, last_bit);
1187 if (type != SCAN_OUT)
1190 if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
1192 LOG_ERROR("couldn't write MPSSE commands to FT2232");
1195 LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i",
1197 (int)bytes_written);
1198 ft2232_buffer_size = 0;
1200 if (type != SCAN_OUT)
1202 if ((retval = ft2232_read(receive_pointer, thisrun_read, &bytes_read)) != ERROR_OK)
1204 LOG_ERROR("couldn't read from FT2232");
1207 LOG_DEBUG("thisrun_read: %i, bytes_read: %i",
1210 receive_pointer += bytes_read;
1216 static int ft2232_predict_scan_out(int scan_size, enum scan_type type)
1218 int predicted_size = 3;
1219 int num_bytes = (scan_size - 1) / 8;
1221 if (tap_get_state() != TAP_DRSHIFT)
1222 predicted_size += get_tms_buffer_requirements(tap_get_tms_path_len(tap_get_state(), TAP_DRSHIFT));
1224 if (type == SCAN_IN) /* only from device to host */
1226 /* complete bytes */
1227 predicted_size += CEIL(num_bytes, 65536) * 3;
1229 /* remaining bits - 1 (up to 7) */
1230 predicted_size += ((scan_size - 1) % 8) ? 2 : 0;
1232 else /* host to device, or bidirectional */
1234 /* complete bytes */
1235 predicted_size += num_bytes + CEIL(num_bytes, 65536) * 3;
1237 /* remaining bits -1 (up to 7) */
1238 predicted_size += ((scan_size - 1) % 8) ? 3 : 0;
1241 return predicted_size;
1244 static int ft2232_predict_scan_in(int scan_size, enum scan_type type)
1246 int predicted_size = 0;
1248 if (type != SCAN_OUT)
1250 /* complete bytes */
1251 predicted_size += (CEIL(scan_size, 8) > 1) ? (CEIL(scan_size, 8) - 1) : 0;
1253 /* remaining bits - 1 */
1254 predicted_size += ((scan_size - 1) % 8) ? 1 : 0;
1256 /* last bit (from TMS scan) */
1257 predicted_size += 1;
1260 /* LOG_DEBUG("scan_size: %i, predicted_size: %i", scan_size, predicted_size); */
1262 return predicted_size;
1265 static void usbjtag_reset(int trst, int srst)
1267 enum reset_types jtag_reset_config = jtag_get_reset_config();
1270 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1271 low_direction |= nTRSTnOE; /* switch to output pin (output is low) */
1273 low_output &= ~nTRST; /* switch output low */
1277 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1278 low_direction &= ~nTRSTnOE; /* switch to input pin (high-Z + internal and external pullup) */
1280 low_output |= nTRST; /* switch output high */
1285 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
1286 low_output &= ~nSRST; /* switch output low */
1288 low_direction |= nSRSTnOE; /* switch to output pin (output is low) */
1292 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
1293 low_output |= nSRST; /* switch output high */
1295 low_direction &= ~nSRSTnOE; /* switch to input pin (high-Z) */
1298 /* command "set data bits low byte" */
1300 buffer_write(low_output);
1301 buffer_write(low_direction);
1304 static void jtagkey_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 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
1325 high_output &= ~nSRST;
1327 high_output &= ~nSRSTnOE;
1331 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
1332 high_output |= nSRST;
1334 high_output |= nSRSTnOE;
1337 /* command "set data bits high byte" */
1339 buffer_write(high_output);
1340 buffer_write(high_direction);
1341 LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,
1345 static void olimex_jtag_reset(int trst, int srst)
1347 enum reset_types jtag_reset_config = jtag_get_reset_config();
1350 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1351 high_output &= ~nTRSTnOE;
1353 high_output &= ~nTRST;
1357 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1358 high_output |= nTRSTnOE;
1360 high_output |= nTRST;
1365 high_output |= nSRST;
1369 high_output &= ~nSRST;
1372 /* command "set data bits high byte" */
1374 buffer_write(high_output);
1375 buffer_write(high_direction);
1376 LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,
1380 static void axm0432_jtag_reset(int trst, int srst)
1384 tap_set_state(TAP_RESET);
1385 high_output &= ~nTRST;
1389 high_output |= nTRST;
1394 high_output &= ~nSRST;
1398 high_output |= nSRST;
1401 /* command "set data bits low byte" */
1403 buffer_write(high_output);
1404 buffer_write(high_direction);
1405 LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,
1409 static void flyswatter_reset(int trst, int srst)
1413 low_output &= ~nTRST;
1417 low_output |= nTRST;
1422 low_output |= nSRST;
1426 low_output &= ~nSRST;
1429 /* command "set data bits low byte" */
1431 buffer_write(low_output);
1432 buffer_write(low_direction);
1433 LOG_DEBUG("trst: %i, srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", trst, srst, low_output, low_direction);
1436 static void turtle_reset(int trst, int srst)
1442 low_output |= nSRST;
1446 low_output &= ~nSRST;
1449 /* command "set data bits low byte" */
1451 buffer_write(low_output);
1452 buffer_write(low_direction);
1453 LOG_DEBUG("srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", srst, low_output, low_direction);
1456 static void comstick_reset(int trst, int srst)
1460 high_output &= ~nTRST;
1464 high_output |= nTRST;
1469 high_output &= ~nSRST;
1473 high_output |= nSRST;
1476 /* command "set data bits high byte" */
1478 buffer_write(high_output);
1479 buffer_write(high_direction);
1480 LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,
1484 static void stm32stick_reset(int trst, int srst)
1488 high_output &= ~nTRST;
1492 high_output |= nTRST;
1497 low_output &= ~nSRST;
1501 low_output |= nSRST;
1504 /* command "set data bits low byte" */
1506 buffer_write(low_output);
1507 buffer_write(low_direction);
1509 /* command "set data bits high byte" */
1511 buffer_write(high_output);
1512 buffer_write(high_direction);
1513 LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,
1517 static void sheevaplug_reset(int trst, int srst)
1520 high_output &= ~nTRST;
1522 high_output |= nTRST;
1525 high_output &= ~nSRSTnOE;
1527 high_output |= nSRSTnOE;
1529 /* command "set data bits high byte" */
1531 buffer_write(high_output);
1532 buffer_write(high_direction);
1533 LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
1536 static int ft2232_execute_runtest(jtag_command_t *cmd)
1540 int predicted_size = 0;
1543 DEBUG_JTAG_IO("runtest %i cycles, end in %s",
1544 cmd->cmd.runtest->num_cycles,
1545 tap_state_name(cmd->cmd.runtest->end_state));
1547 /* only send the maximum buffer size that FT2232C can handle */
1549 if (tap_get_state() != TAP_IDLE)
1550 predicted_size += 3;
1551 predicted_size += 3 * CEIL(cmd->cmd.runtest->num_cycles, 7);
1552 if (cmd->cmd.runtest->end_state != TAP_IDLE)
1553 predicted_size += 3;
1554 if (tap_get_end_state() != TAP_IDLE)
1555 predicted_size += 3;
1556 if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1558 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1559 retval = ERROR_JTAG_QUEUE_FAILED;
1563 if (tap_get_state() != TAP_IDLE)
1565 move_to_state(TAP_IDLE);
1568 i = cmd->cmd.runtest->num_cycles;
1571 /* there are no state transitions in this code, so omit state tracking */
1573 /* command "Clock Data to TMS/CS Pin (no Read)" */
1577 buffer_write((i > 7) ? 6 : (i - 1));
1582 i -= (i > 7) ? 7 : i;
1583 /* LOG_DEBUG("added TMS scan (no read)"); */
1586 ft2232_end_state(cmd->cmd.runtest->end_state);
1588 if (tap_get_state() != tap_get_end_state())
1590 move_to_state(tap_get_end_state());
1594 DEBUG_JTAG_IO("runtest: %i, end in %s",
1595 cmd->cmd.runtest->num_cycles,
1596 tap_state_name(tap_get_end_state()));
1600 static int ft2232_execute_statemove(jtag_command_t *cmd)
1602 int predicted_size = 0;
1603 int retval = ERROR_OK;
1605 DEBUG_JTAG_IO("statemove end in %s",
1606 tap_state_name(cmd->cmd.statemove->end_state));
1608 /* only send the maximum buffer size that FT2232C can handle */
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;
1617 ft2232_end_state(cmd->cmd.statemove->end_state);
1619 /* For TAP_RESET, ignore the current recorded state. It's often
1620 * wrong at server startup, and this transation is critical whenever
1623 if (tap_get_end_state() == TAP_RESET) {
1624 clock_tms(0x4b, 0xff, 5, 0);
1627 /* shortest-path move to desired end state */
1628 } else if (tap_get_state() != tap_get_end_state())
1630 move_to_state(tap_get_end_state());
1637 static int ft2232_execute_pathmove(jtag_command_t *cmd)
1639 int predicted_size = 0;
1640 int retval = ERROR_OK;
1642 tap_state_t* path = cmd->cmd.pathmove->path;
1643 int num_states = cmd->cmd.pathmove->num_states;
1645 DEBUG_JTAG_IO("pathmove: %i states, current: %s end: %s", num_states,
1646 tap_state_name(tap_get_state()),
1647 tap_state_name(path[num_states-1]));
1649 /* only send the maximum buffer size that FT2232C can handle */
1650 predicted_size = 3 * CEIL(num_states, 7);
1651 if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1653 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1654 retval = ERROR_JTAG_QUEUE_FAILED;
1660 ft2232_add_pathmove(path, num_states);
1666 static int ft2232_execute_scan(jtag_command_t *cmd)
1669 int scan_size; /* size of IR or DR scan */
1670 int predicted_size = 0;
1671 int retval = ERROR_OK;
1673 enum scan_type type = jtag_scan_type(cmd->cmd.scan);
1675 DEBUG_JTAG_IO("%s type:%d", cmd->cmd.scan->ir_scan ? "IRSCAN" : "DRSCAN", type);
1677 scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
1679 predicted_size = ft2232_predict_scan_out(scan_size, type);
1680 if ((predicted_size + 1) > FT2232_BUFFER_SIZE)
1682 LOG_DEBUG("oversized ft2232 scan (predicted_size > FT2232_BUFFER_SIZE)");
1683 /* unsent commands before this */
1684 if (first_unsent != cmd)
1685 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1686 retval = ERROR_JTAG_QUEUE_FAILED;
1688 /* current command */
1689 ft2232_end_state(cmd->cmd.scan->end_state);
1690 ft2232_large_scan(cmd->cmd.scan, type, buffer, scan_size);
1692 first_unsent = cmd->next;
1697 else if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1699 LOG_DEBUG("ft2232 buffer size reached, sending queued commands (first_unsent: %p, cmd: %p)",
1702 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1703 retval = ERROR_JTAG_QUEUE_FAILED;
1707 ft2232_expect_read += ft2232_predict_scan_in(scan_size, type);
1708 /* LOG_DEBUG("new read size: %i", ft2232_expect_read); */
1709 ft2232_end_state(cmd->cmd.scan->end_state);
1710 ft2232_add_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size);
1714 DEBUG_JTAG_IO("%s scan, %i bits, end in %s",
1715 (cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size,
1716 tap_state_name(tap_get_end_state()));
1721 static int ft2232_execute_reset(jtag_command_t *cmd)
1724 int predicted_size = 0;
1727 DEBUG_JTAG_IO("reset trst: %i srst %i",
1728 cmd->cmd.reset->trst, cmd->cmd.reset->srst);
1730 /* only send the maximum buffer size that FT2232C can handle */
1732 if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1734 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1735 retval = ERROR_JTAG_QUEUE_FAILED;
1740 if ((cmd->cmd.reset->trst == 1) || (cmd->cmd.reset->srst && (jtag_get_reset_config() & RESET_SRST_PULLS_TRST)))
1742 tap_set_state(TAP_RESET);
1745 layout->reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
1748 DEBUG_JTAG_IO("trst: %i, srst: %i",
1749 cmd->cmd.reset->trst, cmd->cmd.reset->srst);
1753 static int ft2232_execute_sleep(jtag_command_t *cmd)
1758 DEBUG_JTAG_IO("sleep %i", cmd->cmd.sleep->us);
1760 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1761 retval = ERROR_JTAG_QUEUE_FAILED;
1762 first_unsent = cmd->next;
1763 jtag_sleep(cmd->cmd.sleep->us);
1764 DEBUG_JTAG_IO("sleep %i usec while in %s",
1766 tap_state_name(tap_get_state()));
1770 static int ft2232_execute_stableclocks(jtag_command_t *cmd)
1775 /* this is only allowed while in a stable state. A check for a stable
1776 * state was done in jtag_add_clocks()
1778 if (ft2232_stableclocks(cmd->cmd.stableclocks->num_cycles, cmd) != ERROR_OK)
1779 retval = ERROR_JTAG_QUEUE_FAILED;
1780 DEBUG_JTAG_IO("clocks %i while in %s",
1781 cmd->cmd.stableclocks->num_cycles,
1782 tap_state_name(tap_get_state()));
1786 static int ft2232_execute_command(jtag_command_t *cmd)
1793 case JTAG_RESET: retval = ft2232_execute_reset(cmd); break;
1794 case JTAG_RUNTEST: retval = ft2232_execute_runtest(cmd); break;
1795 case JTAG_STATEMOVE: retval = ft2232_execute_statemove(cmd); break;
1796 case JTAG_PATHMOVE: retval = ft2232_execute_pathmove(cmd); break;
1797 case JTAG_SCAN: retval = ft2232_execute_scan(cmd); break;
1798 case JTAG_SLEEP: retval = ft2232_execute_sleep(cmd); break;
1799 case JTAG_STABLECLOCKS: retval = ft2232_execute_stableclocks(cmd); break;
1801 LOG_ERROR("BUG: unknown JTAG command type encountered");
1807 static int ft2232_execute_queue()
1809 jtag_command_t* cmd = jtag_command_queue; /* currently processed command */
1812 first_unsent = cmd; /* next command that has to be sent */
1815 /* return ERROR_OK, unless ft2232_send_and_recv reports a failed check
1816 * that wasn't handled by a caller-provided error handler
1820 ft2232_buffer_size = 0;
1821 ft2232_expect_read = 0;
1823 /* blink, if the current layout has that feature */
1829 if (ft2232_execute_command(cmd) != ERROR_OK)
1830 retval = ERROR_JTAG_QUEUE_FAILED;
1831 /* Start reading input before FT2232 TX buffer fills up */
1833 if (ft2232_expect_read > 256)
1835 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1836 retval = ERROR_JTAG_QUEUE_FAILED;
1841 if (require_send > 0)
1842 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1843 retval = ERROR_JTAG_QUEUE_FAILED;
1848 #if BUILD_FT2232_FTD2XX == 1
1849 static int ft2232_init_ftd2xx(uint16_t vid, uint16_t pid, int more, int* try_more)
1853 char SerialNumber[16];
1854 char Description[64];
1855 DWORD openex_flags = 0;
1856 char* openex_string = NULL;
1857 uint8_t latency_timer;
1859 LOG_DEBUG("'ft2232' interface using FTD2XX with '%s' layout (%4.4x:%4.4x)", ft2232_layout, vid, pid);
1862 /* Add non-standard Vid/Pid to the linux driver */
1863 if ((status = FT_SetVIDPID(vid, pid)) != FT_OK)
1865 LOG_WARNING("couldn't add %4.4x:%4.4x", vid, pid);
1869 if (ft2232_device_desc && ft2232_serial)
1871 LOG_WARNING("can't open by device description and serial number, giving precedence to serial");
1872 ft2232_device_desc = NULL;
1875 if (ft2232_device_desc)
1877 openex_string = ft2232_device_desc;
1878 openex_flags = FT_OPEN_BY_DESCRIPTION;
1880 else if (ft2232_serial)
1882 openex_string = ft2232_serial;
1883 openex_flags = FT_OPEN_BY_SERIAL_NUMBER;
1887 LOG_ERROR("neither device description nor serial number specified");
1888 LOG_ERROR("please add \"ft2232_device_desc <string>\" or \"ft2232_serial <string>\" to your .cfg file");
1890 return ERROR_JTAG_INIT_FAILED;
1893 status = FT_OpenEx(openex_string, openex_flags, &ftdih);
1894 if (status != FT_OK) {
1895 /* under Win32, the FTD2XX driver appends an "A" to the end
1896 * of the description, if we tried by the desc, then
1897 * try by the alternate "A" description. */
1898 if (openex_string == ft2232_device_desc) {
1899 /* Try the alternate method. */
1900 openex_string = ft2232_device_desc_A;
1901 status = FT_OpenEx(openex_string, openex_flags, &ftdih);
1902 if (status == FT_OK) {
1903 /* yea, the "alternate" method worked! */
1905 /* drat, give the user a meaningfull message.
1906 * telling the use we tried *BOTH* methods. */
1907 LOG_WARNING("Unable to open FTDI Device tried: '%s' and '%s'\n",
1909 ft2232_device_desc_A);
1914 if (status != FT_OK)
1920 LOG_WARNING("unable to open ftdi device (trying more): %lu", status);
1922 return ERROR_JTAG_INIT_FAILED;
1924 LOG_ERROR("unable to open ftdi device: %lu", status);
1925 status = FT_ListDevices(&num_devices, NULL, FT_LIST_NUMBER_ONLY);
1926 if (status == FT_OK)
1928 char** desc_array = malloc(sizeof(char*) * (num_devices + 1));
1931 for (i = 0; i < num_devices; i++)
1932 desc_array[i] = malloc(64);
1934 desc_array[num_devices] = NULL;
1936 status = FT_ListDevices(desc_array, &num_devices, FT_LIST_ALL | openex_flags);
1938 if (status == FT_OK)
1940 LOG_ERROR("ListDevices: %lu\n", num_devices);
1941 for (i = 0; i < num_devices; i++)
1942 LOG_ERROR("%" PRIu32 ": \"%s\"", i, desc_array[i]);
1945 for (i = 0; i < num_devices; i++)
1946 free(desc_array[i]);
1952 LOG_ERROR("ListDevices: NONE\n");
1954 return ERROR_JTAG_INIT_FAILED;
1957 if ((status = FT_SetLatencyTimer(ftdih, ft2232_latency)) != FT_OK)
1959 LOG_ERROR("unable to set latency timer: %lu", status);
1960 return ERROR_JTAG_INIT_FAILED;
1963 if ((status = FT_GetLatencyTimer(ftdih, &latency_timer)) != FT_OK)
1965 LOG_ERROR("unable to get latency timer: %lu", status);
1966 return ERROR_JTAG_INIT_FAILED;
1970 LOG_DEBUG("current latency timer: %i", latency_timer);
1973 if ((status = FT_SetTimeouts(ftdih, 5000, 5000)) != FT_OK)
1975 LOG_ERROR("unable to set timeouts: %lu", status);
1976 return ERROR_JTAG_INIT_FAILED;
1979 if ((status = FT_SetBitMode(ftdih, 0x0b, 2)) != FT_OK)
1981 LOG_ERROR("unable to enable bit i/o mode: %lu", status);
1982 return ERROR_JTAG_INIT_FAILED;
1985 if ((status = FT_GetDeviceInfo(ftdih, &ftdi_device, &deviceID, SerialNumber, Description, NULL)) != FT_OK)
1987 LOG_ERROR("unable to get FT_GetDeviceInfo: %lu", status);
1988 return ERROR_JTAG_INIT_FAILED;
1992 static const char* type_str[] =
1993 {"BM", "AM", "100AX", "UNKNOWN", "2232C", "232R", "2232H", "4232H"};
1994 unsigned no_of_known_types = sizeof(type_str) / sizeof(type_str[0]) - 1;
1995 unsigned type_index = ((unsigned)ftdi_device <= no_of_known_types)
1996 ? ftdi_device : FT_DEVICE_UNKNOWN;
1997 LOG_INFO("device: %lu \"%s\"", ftdi_device, type_str[type_index]);
1998 LOG_INFO("deviceID: %lu", deviceID);
1999 LOG_INFO("SerialNumber: %s", SerialNumber);
2000 LOG_INFO("Description: %s", Description);
2006 static int ft2232_purge_ftd2xx(void)
2010 if ((status = FT_Purge(ftdih, FT_PURGE_RX | FT_PURGE_TX)) != FT_OK)
2012 LOG_ERROR("error purging ftd2xx device: %lu", status);
2013 return ERROR_JTAG_INIT_FAILED;
2019 #endif /* BUILD_FT2232_FTD2XX == 1 */
2021 #if BUILD_FT2232_LIBFTDI == 1
2022 static int ft2232_init_libftdi(uint16_t vid, uint16_t pid, int more, int* try_more)
2024 uint8_t latency_timer;
2026 LOG_DEBUG("'ft2232' interface using libftdi with '%s' layout (%4.4x:%4.4x)",
2027 ft2232_layout, vid, pid);
2029 if (ftdi_init(&ftdic) < 0)
2030 return ERROR_JTAG_INIT_FAILED;
2032 if (ftdi_set_interface(&ftdic, INTERFACE_A) < 0)
2034 LOG_ERROR("unable to select FT2232 channel A: %s", ftdic.error_str);
2035 return ERROR_JTAG_INIT_FAILED;
2038 /* context, vendor id, product id */
2039 if (ftdi_usb_open_desc(&ftdic, vid, pid, ft2232_device_desc,
2043 LOG_WARNING("unable to open ftdi device (trying more): %s",
2046 LOG_ERROR("unable to open ftdi device: %s", ftdic.error_str);
2048 return ERROR_JTAG_INIT_FAILED;
2051 /* There is already a reset in ftdi_usb_open_desc, this should be redundant */
2052 if (ftdi_usb_reset(&ftdic) < 0)
2054 LOG_ERROR("unable to reset ftdi device");
2055 return ERROR_JTAG_INIT_FAILED;
2058 if (ftdi_set_latency_timer(&ftdic, ft2232_latency) < 0)
2060 LOG_ERROR("unable to set latency timer");
2061 return ERROR_JTAG_INIT_FAILED;
2064 if (ftdi_get_latency_timer(&ftdic, &latency_timer) < 0)
2066 LOG_ERROR("unable to get latency timer");
2067 return ERROR_JTAG_INIT_FAILED;
2071 LOG_DEBUG("current latency timer: %i", latency_timer);
2074 ftdi_set_bitmode(&ftdic, 0x0b, 2); /* ctx, JTAG I/O mask */
2076 ftdi_device = ftdic.type;
2077 static const char* type_str[] =
2078 {"AM", "BM", "2232C", "R", "2232H", "4232H", "Unknown"};
2079 unsigned no_of_known_types = sizeof(type_str) / sizeof(type_str[0]) - 1;
2080 unsigned type_index = ((unsigned)ftdi_device < no_of_known_types)
2081 ? ftdi_device : no_of_known_types;
2082 LOG_DEBUG("FTDI chip type: %i \"%s\"", (int)ftdi_device, type_str[type_index]);
2086 static int ft2232_purge_libftdi(void)
2088 if (ftdi_usb_purge_buffers(&ftdic) < 0)
2090 LOG_ERROR("ftdi_purge_buffers: %s", ftdic.error_str);
2091 return ERROR_JTAG_INIT_FAILED;
2097 #endif /* BUILD_FT2232_LIBFTDI == 1 */
2099 static int ft2232_init(void)
2103 uint32_t bytes_written;
2104 const ft2232_layout_t* cur_layout = ft2232_layouts;
2107 if (tap_get_tms_path_len(TAP_IRPAUSE,TAP_IRPAUSE) == 7)
2109 LOG_DEBUG("ft2232 interface using 7 step jtag state transitions");
2113 LOG_DEBUG("ft2232 interface using shortest path jtag state transitions");
2116 if ((ft2232_layout == NULL) || (ft2232_layout[0] == 0))
2118 ft2232_layout = "usbjtag";
2119 LOG_WARNING("No ft2232 layout specified, using default 'usbjtag'");
2122 while (cur_layout->name)
2124 if (strcmp(cur_layout->name, ft2232_layout) == 0)
2126 layout = cur_layout;
2134 LOG_ERROR("No matching layout found for %s", ft2232_layout);
2135 return ERROR_JTAG_INIT_FAILED;
2141 * "more indicates that there are more IDs to try, so we should
2142 * not print an error for an ID mismatch (but for anything
2145 * try_more indicates that the error code returned indicates an
2146 * ID mismatch (and nothing else) and that we should proceeed
2147 * with the next ID pair.
2149 int more = ft2232_vid[i + 1] || ft2232_pid[i + 1];
2152 #if BUILD_FT2232_FTD2XX == 1
2153 retval = ft2232_init_ftd2xx(ft2232_vid[i], ft2232_pid[i],
2155 #elif BUILD_FT2232_LIBFTDI == 1
2156 retval = ft2232_init_libftdi(ft2232_vid[i], ft2232_pid[i],
2161 if (!more || !try_more)
2165 ft2232_buffer_size = 0;
2166 ft2232_buffer = malloc(FT2232_BUFFER_SIZE);
2168 if (layout->init() != ERROR_OK)
2169 return ERROR_JTAG_INIT_FAILED;
2171 if (ft2232_device_is_highspeed())
2173 #ifndef BUILD_FT2232_HIGHSPEED
2174 #if BUILD_FT2232_FTD2XX == 1
2175 LOG_WARNING("High Speed device found - You need a newer FTD2XX driver (version 2.04.16 or later)");
2176 #elif BUILD_FT2232_LIBFTDI == 1
2177 LOG_WARNING("High Speed device found - You need a newer libftdi version (0.16 or later)");
2180 /* make sure the legacy mode is disabled */
2181 if (ft2232h_ft4232h_clk_divide_by_5(false) != ERROR_OK)
2182 return ERROR_JTAG_INIT_FAILED;
2185 ft2232_speed(jtag_get_speed());
2187 buf[0] = 0x85; /* Disconnect TDI/DO to TDO/DI for Loopback */
2188 if (((retval = ft2232_write(buf, 1, &bytes_written)) != ERROR_OK) || (bytes_written != 1))
2190 LOG_ERROR("couldn't write to FT2232 to disable loopback");
2191 return ERROR_JTAG_INIT_FAILED;
2194 #if BUILD_FT2232_FTD2XX == 1
2195 return ft2232_purge_ftd2xx();
2196 #elif BUILD_FT2232_LIBFTDI == 1
2197 return ft2232_purge_libftdi();
2203 static int usbjtag_init(void)
2206 uint32_t bytes_written;
2209 low_direction = 0x0b;
2211 if (strcmp(ft2232_layout, "usbjtag") == 0)
2218 else if (strcmp(ft2232_layout, "signalyzer") == 0)
2225 else if (strcmp(ft2232_layout, "evb_lm3s811") == 0)
2232 low_direction = 0x8b;
2234 else if (strcmp(ft2232_layout, "luminary_icdi") == 0)
2241 low_direction = 0xcb;
2245 LOG_ERROR("BUG: usbjtag_init called for unknown layout '%s'", ft2232_layout);
2246 return ERROR_JTAG_INIT_FAILED;
2249 enum reset_types jtag_reset_config = jtag_get_reset_config();
2250 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
2252 low_direction &= ~nTRSTnOE; /* nTRST input */
2253 low_output &= ~nTRST; /* nTRST = 0 */
2257 low_direction |= nTRSTnOE; /* nTRST output */
2258 low_output |= nTRST; /* nTRST = 1 */
2261 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
2263 low_direction |= nSRSTnOE; /* nSRST output */
2264 low_output |= nSRST; /* nSRST = 1 */
2268 low_direction &= ~nSRSTnOE; /* nSRST input */
2269 low_output &= ~nSRST; /* nSRST = 0 */
2272 /* initialize low byte for jtag */
2273 buf[0] = 0x80; /* command "set data bits low byte" */
2274 buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, xRST high) */
2275 buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in */
2276 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2278 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2280 LOG_ERROR("couldn't initialize FT2232 with 'USBJTAG' layout");
2281 return ERROR_JTAG_INIT_FAILED;
2287 static int axm0432_jtag_init(void)
2290 uint32_t bytes_written;
2293 low_direction = 0x2b;
2295 /* initialize low byte for jtag */
2296 buf[0] = 0x80; /* command "set data bits low byte" */
2297 buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
2298 buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
2299 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2301 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2303 LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
2304 return ERROR_JTAG_INIT_FAILED;
2307 if (strcmp(layout->name, "axm0432_jtag") == 0)
2310 nTRSTnOE = 0x0; /* No output enable for TRST*/
2312 nSRSTnOE = 0x0; /* No output enable for SRST*/
2316 LOG_ERROR("BUG: axm0432_jtag_init called for non axm0432 layout");
2321 high_direction = 0x0c;
2323 enum reset_types jtag_reset_config = jtag_get_reset_config();
2324 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
2326 LOG_ERROR("can't set nTRSTOE to push-pull on the Dicarlo jtag");
2330 high_output |= nTRST;
2333 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
2335 LOG_ERROR("can't set nSRST to push-pull on the Dicarlo jtag");
2339 high_output |= nSRST;
2342 /* initialize high port */
2343 buf[0] = 0x82; /* command "set data bits high byte" */
2344 buf[1] = high_output; /* value */
2345 buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
2346 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2348 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2350 LOG_ERROR("couldn't initialize FT2232 with 'Dicarlo' layout");
2351 return ERROR_JTAG_INIT_FAILED;
2357 static int jtagkey_init(void)
2360 uint32_t bytes_written;
2363 low_direction = 0x1b;
2365 /* initialize low byte for jtag */
2366 buf[0] = 0x80; /* command "set data bits low byte" */
2367 buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
2368 buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
2369 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2371 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2373 LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
2374 return ERROR_JTAG_INIT_FAILED;
2377 if (strcmp(layout->name, "jtagkey") == 0)
2384 else if ((strcmp(layout->name, "jtagkey_prototype_v1") == 0)
2385 || (strcmp(layout->name, "oocdlink") == 0))
2394 LOG_ERROR("BUG: jtagkey_init called for non jtagkey layout");
2399 high_direction = 0x0f;
2401 enum reset_types jtag_reset_config = jtag_get_reset_config();
2402 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
2404 high_output |= nTRSTnOE;
2405 high_output &= ~nTRST;
2409 high_output &= ~nTRSTnOE;
2410 high_output |= nTRST;
2413 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
2415 high_output &= ~nSRSTnOE;
2416 high_output |= nSRST;
2420 high_output |= nSRSTnOE;
2421 high_output &= ~nSRST;
2424 /* initialize high port */
2425 buf[0] = 0x82; /* command "set data bits high byte" */
2426 buf[1] = high_output; /* value */
2427 buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
2428 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2430 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2432 LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
2433 return ERROR_JTAG_INIT_FAILED;
2439 static int olimex_jtag_init(void)
2442 uint32_t bytes_written;
2445 low_direction = 0x1b;
2447 /* initialize low byte for jtag */
2448 buf[0] = 0x80; /* command "set data bits low byte" */
2449 buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
2450 buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
2451 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2453 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2455 LOG_ERROR("couldn't initialize FT2232 with 'Olimex' layout");
2456 return ERROR_JTAG_INIT_FAILED;
2462 nSRSTnOE = 0x00; /* no output enable for nSRST */
2465 high_direction = 0x0f;
2467 enum reset_types jtag_reset_config = jtag_get_reset_config();
2468 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
2470 high_output |= nTRSTnOE;
2471 high_output &= ~nTRST;
2475 high_output &= ~nTRSTnOE;
2476 high_output |= nTRST;
2479 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
2481 LOG_ERROR("can't set nSRST to push-pull on the Olimex ARM-USB-OCD");
2485 high_output &= ~nSRST;
2488 /* turn red LED on */
2489 high_output |= 0x08;
2491 /* initialize high port */
2492 buf[0] = 0x82; /* command "set data bits high byte" */
2493 buf[1] = high_output; /* value */
2494 buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
2495 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2497 if ((ft2232_write(buf, 3, &bytes_written) != ERROR_OK) || (bytes_written != 3))
2499 LOG_ERROR("couldn't initialize FT2232 with 'Olimex' layout");
2500 return ERROR_JTAG_INIT_FAILED;
2506 static int flyswatter_init(void)
2509 uint32_t bytes_written;
2512 low_direction = 0xfb;
2514 /* initialize low byte for jtag */
2515 buf[0] = 0x80; /* command "set data bits low byte" */
2516 buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
2517 buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE[12]=out, n[ST]srst = out */
2518 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2520 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2522 LOG_ERROR("couldn't initialize FT2232 with 'flyswatter' layout");
2523 return ERROR_JTAG_INIT_FAILED;
2527 nTRSTnOE = 0x0; /* not output enable for nTRST */
2529 nSRSTnOE = 0x00; /* no output enable for nSRST */
2532 high_direction = 0x0c;
2534 /* turn red LED3 on, LED2 off */
2535 high_output |= 0x08;
2537 /* initialize high port */
2538 buf[0] = 0x82; /* command "set data bits high byte" */
2539 buf[1] = high_output; /* value */
2540 buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
2541 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2543 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2545 LOG_ERROR("couldn't initialize FT2232 with 'flyswatter' layout");
2546 return ERROR_JTAG_INIT_FAILED;
2552 static int turtle_init(void)
2555 uint32_t bytes_written;
2558 low_direction = 0x5b;
2560 /* initialize low byte for jtag */
2561 buf[0] = 0x80; /* command "set data bits low byte" */
2562 buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
2563 buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
2564 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2566 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2568 LOG_ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
2569 return ERROR_JTAG_INIT_FAILED;
2575 high_direction = 0x0C;
2577 /* initialize high port */
2578 buf[0] = 0x82; /* command "set data bits high byte" */
2579 buf[1] = high_output;
2580 buf[2] = high_direction;
2581 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2583 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2585 LOG_ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
2586 return ERROR_JTAG_INIT_FAILED;
2592 static int comstick_init(void)
2595 uint32_t bytes_written;
2598 low_direction = 0x0b;
2600 /* initialize low byte for jtag */
2601 buf[0] = 0x80; /* command "set data bits low byte" */
2602 buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
2603 buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
2604 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2606 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2608 LOG_ERROR("couldn't initialize FT2232 with 'comstick' layout");
2609 return ERROR_JTAG_INIT_FAILED;
2613 nTRSTnOE = 0x00; /* no output enable for nTRST */
2615 nSRSTnOE = 0x00; /* no output enable for nSRST */
2618 high_direction = 0x03;
2620 /* initialize high port */
2621 buf[0] = 0x82; /* command "set data bits high byte" */
2622 buf[1] = high_output;
2623 buf[2] = high_direction;
2624 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2626 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2628 LOG_ERROR("couldn't initialize FT2232 with 'comstick' layout");
2629 return ERROR_JTAG_INIT_FAILED;
2635 static int stm32stick_init(void)
2638 uint32_t bytes_written;
2641 low_direction = 0x8b;
2643 /* initialize low byte for jtag */
2644 buf[0] = 0x80; /* command "set data bits low byte" */
2645 buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
2646 buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
2647 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2649 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2651 LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
2652 return ERROR_JTAG_INIT_FAILED;
2656 nTRSTnOE = 0x00; /* no output enable for nTRST */
2658 nSRSTnOE = 0x00; /* no output enable for nSRST */
2661 high_direction = 0x03;
2663 /* initialize high port */
2664 buf[0] = 0x82; /* command "set data bits high byte" */
2665 buf[1] = high_output;
2666 buf[2] = high_direction;
2667 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2669 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2671 LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
2672 return ERROR_JTAG_INIT_FAILED;
2678 static int sheevaplug_init(void)
2681 uint32_t bytes_written;
2684 low_direction = 0x1b;
2686 /* initialize low byte for jtag */
2687 buf[0] = 0x80; /* command "set data bits low byte" */
2688 buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
2689 buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in */
2690 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2692 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2694 LOG_ERROR("couldn't initialize FT2232 with 'sheevaplug' layout");
2695 return ERROR_JTAG_INIT_FAILED;
2704 high_direction = 0x0f;
2706 /* nTRST is always push-pull */
2707 high_output &= ~nTRSTnOE;
2708 high_output |= nTRST;
2710 /* nSRST is always open-drain */
2711 high_output |= nSRSTnOE;
2712 high_output &= ~nSRST;
2714 /* initialize high port */
2715 buf[0] = 0x82; /* command "set data bits high byte" */
2716 buf[1] = high_output; /* value */
2717 buf[2] = high_direction; /* all outputs - xRST */
2718 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2720 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2722 LOG_ERROR("couldn't initialize FT2232 with 'sheevaplug' layout");
2723 return ERROR_JTAG_INIT_FAILED;
2729 static int cortino_jtag_init(void)
2732 uint32_t bytes_written;
2735 low_direction = 0x1b;
2737 /* initialize low byte for jtag */
2738 buf[0] = 0x80; /* command "set data bits low byte" */
2739 buf[1] = low_output; /* value (TMS = 1,TCK = 0, TDI = 0, nOE = 0) */
2740 buf[2] = low_direction; /* dir (output = 1), TCK/TDI/TMS = out, TDO = in, nOE = out */
2741 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2743 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2745 LOG_ERROR("couldn't initialize FT2232 with 'cortino' layout");
2746 return ERROR_JTAG_INIT_FAILED;
2750 nTRSTnOE = 0x00; /* no output enable for nTRST */
2752 nSRSTnOE = 0x00; /* no output enable for nSRST */
2755 high_direction = 0x03;
2757 /* initialize high port */
2758 buf[0] = 0x82; /* command "set data bits high byte" */
2759 buf[1] = high_output;
2760 buf[2] = high_direction;
2761 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
2763 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
2765 LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
2766 return ERROR_JTAG_INIT_FAILED;
2772 static void olimex_jtag_blink(void)
2774 /* Olimex ARM-USB-OCD has a LED connected to ACBUS3
2775 * ACBUS3 is bit 3 of the GPIOH port
2777 if (high_output & 0x08)
2779 /* set port pin high */
2780 high_output &= 0x07;
2784 /* set port pin low */
2785 high_output |= 0x08;
2789 buffer_write(high_output);
2790 buffer_write(high_direction);
2793 static void flyswatter_jtag_blink(void)
2796 * Flyswatter has two LEDs connected to ACBUS2 and ACBUS3
2798 high_output ^= 0x0c;
2801 buffer_write(high_output);
2802 buffer_write(high_direction);
2805 static void turtle_jtag_blink(void)
2808 * Turtelizer2 has two LEDs connected to ACBUS2 and ACBUS3
2810 if (high_output & 0x08)
2820 buffer_write(high_output);
2821 buffer_write(high_direction);
2824 static int ft2232_quit(void)
2826 #if BUILD_FT2232_FTD2XX == 1
2829 status = FT_Close(ftdih);
2830 #elif BUILD_FT2232_LIBFTDI == 1
2831 ftdi_usb_close(&ftdic);
2833 ftdi_deinit(&ftdic);
2836 free(ft2232_buffer);
2837 ft2232_buffer = NULL;
2842 static int ft2232_handle_device_desc_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc)
2848 ft2232_device_desc = strdup(args[0]);
2849 cp = strchr(ft2232_device_desc, 0);
2850 /* under Win32, the FTD2XX driver appends an "A" to the end
2851 * of the description, this examines the given desc
2852 * and creates the 'missing' _A or non_A variable. */
2853 if ((cp[-1] == 'A') && (cp[-2]==' ')) {
2854 /* it was, so make this the "A" version. */
2855 ft2232_device_desc_A = ft2232_device_desc;
2856 /* and *CREATE* the non-A version. */
2857 strcpy(buf, ft2232_device_desc);
2858 cp = strchr(buf, 0);
2860 ft2232_device_desc = strdup(buf);
2862 /* <space > A not defined
2864 sprintf(buf, "%s A", ft2232_device_desc);
2865 ft2232_device_desc_A = strdup(buf);
2870 LOG_ERROR("expected exactly one argument to ft2232_device_desc <description>");
2876 static int ft2232_handle_serial_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc)
2880 ft2232_serial = strdup(args[0]);
2884 LOG_ERROR("expected exactly one argument to ft2232_serial <serial-number>");
2890 static int ft2232_handle_layout_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc)
2895 ft2232_layout = malloc(strlen(args[0]) + 1);
2896 strcpy(ft2232_layout, args[0]);
2901 static int ft2232_handle_vid_pid_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc)
2903 if (argc > MAX_USB_IDS * 2)
2905 LOG_WARNING("ignoring extra IDs in ft2232_vid_pid "
2906 "(maximum is %d pairs)", MAX_USB_IDS);
2907 argc = MAX_USB_IDS * 2;
2909 if (argc < 2 || (argc & 1))
2911 LOG_WARNING("incomplete ft2232_vid_pid configuration directive");
2913 return ERROR_COMMAND_SYNTAX_ERROR;
2914 /* remove the incomplete trailing id */
2919 int retval = ERROR_OK;
2920 for (i = 0; i < argc; i += 2)
2922 retval = parse_u16(args[i], &ft2232_vid[i >> 1]);
2923 if (ERROR_OK != retval)
2925 retval = parse_u16(args[i + 1], &ft2232_pid[i >> 1]);
2926 if (ERROR_OK != retval)
2931 * Explicitly terminate, in case there are multiples instances of
2934 ft2232_vid[i >> 1] = ft2232_pid[i >> 1] = 0;
2939 static int ft2232_handle_latency_command(struct command_context_s* cmd_ctx, char* cmd, char** args, int argc)
2943 ft2232_latency = atoi(args[0]);
2947 LOG_ERROR("expected exactly one argument to ft2232_latency <ms>");
2953 static int ft2232_stableclocks(int num_cycles, jtag_command_t* cmd)
2957 /* 7 bits of either ones or zeros. */
2958 uint8_t tms = (tap_get_state() == TAP_RESET ? 0x7F : 0x00);
2960 while (num_cycles > 0)
2962 /* the command 0x4b, "Clock Data to TMS/CS Pin (no Read)" handles
2963 * at most 7 bits per invocation. Here we invoke it potentially
2966 int bitcount_per_command = (num_cycles > 7) ? 7 : num_cycles;
2968 if (ft2232_buffer_size + 3 >= FT2232_BUFFER_SIZE)
2970 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
2971 retval = ERROR_JTAG_QUEUE_FAILED;
2976 /* there are no state transitions in this code, so omit state tracking */
2978 /* command "Clock Data to TMS/CS Pin (no Read)" */
2982 buffer_write(bitcount_per_command - 1);
2984 /* TMS data bits are either all zeros or ones to stay in the current stable state */
2989 num_cycles -= bitcount_per_command;
2995 /* ---------------------------------------------------------------------
2996 * Support for IceBear JTAG adapter from Section5:
2997 * http://section5.ch/icebear
2999 * Author: Sten, debian@sansys-electronic.com
3002 /* Icebear pin layout
3004 * ADBUS5 (nEMU) nSRST | 2 1| GND (10k->VCC)
3005 * GND GND | 4 3| n.c.
3006 * ADBUS3 TMS | 6 5| ADBUS6 VCC
3007 * ADBUS0 TCK | 8 7| ADBUS7 (GND)
3008 * ADBUS4 nTRST |10 9| ACBUS0 (GND)
3009 * ADBUS1 TDI |12 11| ACBUS1 (GND)
3010 * ADBUS2 TDO |14 13| GND GND
3012 * ADBUS0 O L TCK ACBUS0 GND
3013 * ADBUS1 O L TDI ACBUS1 GND
3014 * ADBUS2 I TDO ACBUS2 n.c.
3015 * ADBUS3 O H TMS ACBUS3 n.c.
3021 static int icebear_jtag_init(void) {
3023 uint32_t bytes_written;
3025 low_direction = 0x0b; /* output: TCK TDI TMS; input: TDO */
3026 low_output = 0x08; /* high: TMS; low: TCK TDI */
3030 enum reset_types jtag_reset_config = jtag_get_reset_config();
3031 if ((jtag_reset_config & RESET_TRST_OPEN_DRAIN) != 0) {
3032 low_direction &= ~nTRST; /* nTRST high impedance */
3035 low_direction |= nTRST;
3036 low_output |= nTRST;
3039 low_direction |= nSRST;
3040 low_output |= nSRST;
3042 /* initialize low byte for jtag */
3043 buf[0] = 0x80; /* command "set data bits low byte" */
3044 buf[1] = low_output;
3045 buf[2] = low_direction;
3046 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
3048 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) {
3049 LOG_ERROR("couldn't initialize FT2232 with 'IceBear' layout (low)");
3050 return ERROR_JTAG_INIT_FAILED;
3054 high_direction = 0x00;
3057 /* initialize high port */
3058 buf[0] = 0x82; /* command "set data bits high byte" */
3059 buf[1] = high_output; /* value */
3060 buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
3061 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
3063 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3)) {
3064 LOG_ERROR("couldn't initialize FT2232 with 'IceBear' layout (high)");
3065 return ERROR_JTAG_INIT_FAILED;
3071 static void icebear_jtag_reset(int trst, int srst) {
3074 low_direction |= nTRST;
3075 low_output &= ~nTRST;
3077 else if (trst == 0) {
3078 enum reset_types jtag_reset_config = jtag_get_reset_config();
3079 if ((jtag_reset_config & RESET_TRST_OPEN_DRAIN) != 0)
3080 low_direction &= ~nTRST;
3082 low_output |= nTRST;
3086 low_output &= ~nSRST;
3088 else if (srst == 0) {
3089 low_output |= nSRST;
3092 /* command "set data bits low byte" */
3094 buffer_write(low_output);
3095 buffer_write(low_direction);
3097 LOG_DEBUG("trst: %i, srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", trst, srst, low_output, low_direction);
3100 /* ---------------------------------------------------------------------
3101 * Support for Signalyzer H2 and Signalyzer H4
3102 * JTAG adapter from Xverve Technologies Inc.
3103 * http://www.signalyzer.com or http://www.xverve.com
3105 * Author: Oleg Seiljus, oleg@signalyzer.com
3107 static unsigned char signalyzer_h_side;
3108 static unsigned int signalyzer_h_adapter_type;
3110 static int signalyzer_h_ctrl_write(int address, unsigned short value);
3112 #if BUILD_FT2232_FTD2XX == 1
3113 static int signalyzer_h_ctrl_read(int address, unsigned short *value);
3116 #define SIGNALYZER_COMMAND_ADDR 128
3117 #define SIGNALYZER_DATA_BUFFER_ADDR 129
3119 #define SIGNALYZER_COMMAND_VERSION 0x41
3120 #define SIGNALYZER_COMMAND_RESET 0x42
3121 #define SIGNALYZER_COMMAND_POWERCONTROL_GET 0x50
3122 #define SIGNALYZER_COMMAND_POWERCONTROL_SET 0x51
3123 #define SIGNALYZER_COMMAND_PWM_SET 0x52
3124 #define SIGNALYZER_COMMAND_LED_SET 0x53
3125 #define SIGNALYZER_COMMAND_ADC 0x54
3126 #define SIGNALYZER_COMMAND_GPIO_STATE 0x55
3127 #define SIGNALYZER_COMMAND_GPIO_MODE 0x56
3128 #define SIGNALYZER_COMMAND_GPIO_PORT 0x57
3129 #define SIGNALYZER_COMMAND_I2C 0x58
3131 #define SIGNALYZER_CHAN_A 1
3132 #define SIGNALYZER_CHAN_B 2
3133 /* LEDS use channel C */
3134 #define SIGNALYZER_CHAN_C 4
3136 #define SIGNALYZER_LED_GREEN 1
3137 #define SIGNALYZER_LED_RED 2
3139 #define SIGNALYZER_MODULE_TYPE_EM_LT16_A 0x0301
3140 #define SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG 0x0302
3141 #define SIGNALYZER_MODULE_TYPE_EM_JTAG 0x0303
3142 #define SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG_P 0x0304
3143 #define SIGNALYZER_MODULE_TYPE_EM_JTAG_P 0x0305
3146 static int signalyzer_h_ctrl_write(int address, unsigned short value)
3148 #if BUILD_FT2232_FTD2XX == 1
3149 return FT_WriteEE(ftdih, address, value);
3150 #elif BUILD_FT2232_LIBFTDI == 1
3155 #if BUILD_FT2232_FTD2XX == 1
3156 static int signalyzer_h_ctrl_read(int address, unsigned short *value)
3158 return FT_ReadEE(ftdih, address, value);
3162 static int signalyzer_h_led_set(unsigned char channel, unsigned char led,
3163 int on_time_ms, int off_time_ms, unsigned char cycles)
3165 unsigned char on_time;
3166 unsigned char off_time;
3168 if (on_time_ms < 0xFFFF)
3169 on_time = (unsigned char)(on_time_ms / 62);
3173 off_time = (unsigned char)(off_time_ms / 62);
3175 #if BUILD_FT2232_FTD2XX == 1
3178 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
3179 ((uint32_t)(channel << 8) | led))) != FT_OK)
3181 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3182 return ERROR_JTAG_DEVICE_ERROR;
3185 if ((status = signalyzer_h_ctrl_write(
3186 (SIGNALYZER_DATA_BUFFER_ADDR + 1),
3187 ((uint32_t)(on_time << 8) | off_time))) != FT_OK)
3189 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3190 return ERROR_JTAG_DEVICE_ERROR;
3193 if ((status = signalyzer_h_ctrl_write(
3194 (SIGNALYZER_DATA_BUFFER_ADDR + 2),
3195 ((uint32_t)cycles))) != FT_OK)
3197 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3198 return ERROR_JTAG_DEVICE_ERROR;
3201 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
3202 SIGNALYZER_COMMAND_LED_SET)) != FT_OK)
3204 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3205 return ERROR_JTAG_DEVICE_ERROR;
3209 #elif BUILD_FT2232_LIBFTDI == 1
3212 if ((retval = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
3213 ((uint32_t)(channel << 8) | led))) < 0)
3215 LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
3216 ftdi_get_error_string(&ftdic));
3217 return ERROR_JTAG_DEVICE_ERROR;
3220 if ((retval = signalyzer_h_ctrl_write(
3221 (SIGNALYZER_DATA_BUFFER_ADDR + 1),
3222 ((uint32_t)(on_time << 8) | off_time))) < 0)
3224 LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
3225 ftdi_get_error_string(&ftdic));
3226 return ERROR_JTAG_DEVICE_ERROR;
3229 if ((retval = signalyzer_h_ctrl_write(
3230 (SIGNALYZER_DATA_BUFFER_ADDR + 2),
3231 (uint32_t)cycles)) < 0)
3233 LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
3234 ftdi_get_error_string(&ftdic));
3235 return ERROR_JTAG_DEVICE_ERROR;
3238 if ((retval = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
3239 SIGNALYZER_COMMAND_LED_SET)) < 0)
3241 LOG_ERROR("signalyzer_h_ctrl_write returned: %s",
3242 ftdi_get_error_string(&ftdic));
3243 return ERROR_JTAG_DEVICE_ERROR;
3250 static int signalyzer_h_init(void)
3252 #if BUILD_FT2232_FTD2XX == 1
3259 uint16_t read_buf[12];
3261 uint32_t bytes_written;
3263 /* turn on center green led */
3264 signalyzer_h_led_set(SIGNALYZER_CHAN_C, SIGNALYZER_LED_GREEN,
3265 0xFFFF, 0x00, 0x00);
3267 /* determine what channel config wants to open
3268 * TODO: change me... current implementation is made to work
3269 * with openocd description parsing.
3271 end_of_desc = strrchr(ft2232_device_desc, 0x00);
3275 signalyzer_h_side = *(end_of_desc - 1);
3276 if (signalyzer_h_side == 'B')
3277 signalyzer_h_side = SIGNALYZER_CHAN_B;
3279 signalyzer_h_side = SIGNALYZER_CHAN_A;
3283 LOG_ERROR("No Channel was specified");
3287 signalyzer_h_led_set(signalyzer_h_side, SIGNALYZER_LED_GREEN,
3290 #if BUILD_FT2232_FTD2XX == 1
3291 /* read signalyzer versionining information */
3292 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
3293 SIGNALYZER_COMMAND_VERSION)) != FT_OK)
3295 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3296 return ERROR_JTAG_DEVICE_ERROR;
3299 for (i = 0; i < 10; i++)
3301 if ((status = signalyzer_h_ctrl_read(
3302 (SIGNALYZER_DATA_BUFFER_ADDR + i),
3303 &read_buf[i])) != FT_OK)
3305 LOG_ERROR("signalyzer_h_ctrl_read returned: %lu",
3307 return ERROR_JTAG_DEVICE_ERROR;
3311 LOG_INFO("Signalyzer: ID info: { %.4x %.4x %.4x %.4x %.4x %.4x %.4x }",
3312 read_buf[0], read_buf[1], read_buf[2], read_buf[3],
3313 read_buf[4], read_buf[5], read_buf[6]);
3315 /* set gpio register */
3316 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
3317 (uint32_t)(signalyzer_h_side << 8))) != FT_OK)
3319 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3320 return ERROR_JTAG_DEVICE_ERROR;
3323 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR + 1,
3326 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3327 return ERROR_JTAG_DEVICE_ERROR;
3330 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
3331 SIGNALYZER_COMMAND_GPIO_STATE)) != FT_OK)
3333 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3334 return ERROR_JTAG_DEVICE_ERROR;
3337 /* read adapter type information */
3338 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_DATA_BUFFER_ADDR,
3339 ((uint32_t)(signalyzer_h_side << 8) | 0x01))) != FT_OK)
3341 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3342 return ERROR_JTAG_DEVICE_ERROR;
3345 if ((status = signalyzer_h_ctrl_write(
3346 (SIGNALYZER_DATA_BUFFER_ADDR + 1), 0xA000)) != FT_OK)
3348 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3349 return ERROR_JTAG_DEVICE_ERROR;
3352 if ((status = signalyzer_h_ctrl_write(
3353 (SIGNALYZER_DATA_BUFFER_ADDR + 2), 0x0008)) != FT_OK)
3355 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3356 return ERROR_JTAG_DEVICE_ERROR;
3359 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
3360 SIGNALYZER_COMMAND_I2C)) != FT_OK)
3362 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu", status);
3363 return ERROR_JTAG_DEVICE_ERROR;
3368 if ((status = signalyzer_h_ctrl_read(SIGNALYZER_COMMAND_ADDR,
3369 &read_buf[0])) != FT_OK)
3371 LOG_ERROR("signalyzer_h_ctrl_read returned: %lu", status);
3372 return ERROR_JTAG_DEVICE_ERROR;
3375 if (read_buf[0] != 0x0498)
3376 signalyzer_h_adapter_type = 0x0000;
3379 for (i = 0; i < 4; i++)
3381 if ((status = signalyzer_h_ctrl_read(
3382 (SIGNALYZER_DATA_BUFFER_ADDR + i),
3383 &read_buf[i])) != FT_OK)
3385 LOG_ERROR("signalyzer_h_ctrl_read returned: %lu",
3387 return ERROR_JTAG_DEVICE_ERROR;
3391 signalyzer_h_adapter_type = read_buf[0];
3394 #elif BUILD_FT2232_LIBFTDI == 1
3395 /* currently libftdi does not allow reading individual eeprom
3396 * locations, therefore adapter type cannot be detected.
3397 * override with most common type
3399 signalyzer_h_adapter_type = SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG;
3402 enum reset_types jtag_reset_config = jtag_get_reset_config();
3404 /* ADAPTOR: EM_LT16_A */
3405 if (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_LT16_A)
3407 LOG_INFO("Signalyzer: EM-LT (16-channel level translator) "
3408 "detected. (HW: %2x).", (read_buf[1] >> 8));
3416 low_direction = 0x1b;
3419 high_direction = 0x0;
3421 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3423 low_direction &= ~nTRSTnOE; /* nTRST input */
3424 low_output &= ~nTRST; /* nTRST = 0 */
3428 low_direction |= nTRSTnOE; /* nTRST output */
3429 low_output |= nTRST; /* nTRST = 1 */
3432 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3434 low_direction |= nSRSTnOE; /* nSRST output */
3435 low_output |= nSRST; /* nSRST = 1 */
3439 low_direction &= ~nSRSTnOE; /* nSRST input */
3440 low_output &= ~nSRST; /* nSRST = 0 */
3443 #if BUILD_FT2232_FTD2XX == 1
3444 /* enable power to the module */
3445 if ((status = signalyzer_h_ctrl_write(
3446 SIGNALYZER_DATA_BUFFER_ADDR,
3447 ((uint32_t)(signalyzer_h_side << 8) | 0x01)))
3450 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3452 return ERROR_JTAG_DEVICE_ERROR;
3455 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
3456 SIGNALYZER_COMMAND_POWERCONTROL_SET)) != FT_OK)
3458 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3460 return ERROR_JTAG_DEVICE_ERROR;
3463 /* set gpio mode register */
3464 if ((status = signalyzer_h_ctrl_write(
3465 SIGNALYZER_DATA_BUFFER_ADDR,
3466 (uint32_t)(signalyzer_h_side << 8))) != FT_OK)
3468 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3470 return ERROR_JTAG_DEVICE_ERROR;
3473 if ((status = signalyzer_h_ctrl_write(
3474 SIGNALYZER_DATA_BUFFER_ADDR + 1, 0x0000))
3477 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3479 return ERROR_JTAG_DEVICE_ERROR;
3482 if ((status = signalyzer_h_ctrl_write(SIGNALYZER_COMMAND_ADDR,
3483 SIGNALYZER_COMMAND_GPIO_MODE)) != FT_OK)
3485 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3487 return ERROR_JTAG_DEVICE_ERROR;
3490 /* set gpio register */
3491 if ((status = signalyzer_h_ctrl_write(
3492 SIGNALYZER_DATA_BUFFER_ADDR,
3493 (uint32_t)(signalyzer_h_side << 8))) != FT_OK)
3495 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3497 return ERROR_JTAG_DEVICE_ERROR;
3500 if ((status = signalyzer_h_ctrl_write(
3501 SIGNALYZER_DATA_BUFFER_ADDR + 1, 0x4040))
3504 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3506 return ERROR_JTAG_DEVICE_ERROR;
3509 if ((status = signalyzer_h_ctrl_write(
3510 SIGNALYZER_COMMAND_ADDR,
3511 SIGNALYZER_COMMAND_GPIO_STATE)) != FT_OK)
3513 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3515 return ERROR_JTAG_DEVICE_ERROR;
3520 /* ADAPTOR: EM_ARM_JTAG, EM_ARM_JTAG_P, EM_JTAG, EM_JTAG_P */
3521 else if ((signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG) ||
3522 (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG_P) ||
3523 (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_JTAG) ||
3524 (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_JTAG_P))
3526 if (signalyzer_h_adapter_type
3527 == SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG)
3528 LOG_INFO("Signalyzer: EM-ARM-JTAG (ARM JTAG) "
3529 "detected. (HW: %2x).", (read_buf[1] >> 8));
3530 else if (signalyzer_h_adapter_type
3531 == SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG_P)
3532 LOG_INFO("Signalyzer: EM-ARM-JTAG_P "
3533 "(ARM JTAG with PSU) detected. (HW: %2x).",
3534 (read_buf[1] >> 8));
3535 else if (signalyzer_h_adapter_type
3536 == SIGNALYZER_MODULE_TYPE_EM_JTAG)
3537 LOG_INFO("Signalyzer: EM-JTAG (Generic JTAG) "
3538 "detected. (HW: %2x).", (read_buf[1] >> 8));
3539 else if (signalyzer_h_adapter_type
3540 == SIGNALYZER_MODULE_TYPE_EM_JTAG_P)
3541 LOG_INFO("Signalyzer: EM-JTAG-P "
3542 "(Generic JTAG with PSU) detected. (HW: %2x).",
3543 (read_buf[1] >> 8));
3551 low_direction = 0x1b;
3554 high_direction = 0x1f;
3556 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3558 high_output |= nTRSTnOE;
3559 high_output &= ~nTRST;
3563 high_output &= ~nTRSTnOE;
3564 high_output |= nTRST;
3567 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3569 high_output &= ~nSRSTnOE;
3570 high_output |= nSRST;
3574 high_output |= nSRSTnOE;
3575 high_output &= ~nSRST;
3578 #if BUILD_FT2232_FTD2XX == 1
3579 /* enable power to the module */
3580 if ((status = signalyzer_h_ctrl_write(
3581 SIGNALYZER_DATA_BUFFER_ADDR,
3582 ((uint32_t)(signalyzer_h_side << 8) | 0x01)))
3585 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3587 return ERROR_JTAG_DEVICE_ERROR;
3590 if ((status = signalyzer_h_ctrl_write(
3591 SIGNALYZER_COMMAND_ADDR,
3592 SIGNALYZER_COMMAND_POWERCONTROL_SET)) != FT_OK)
3594 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3596 return ERROR_JTAG_DEVICE_ERROR;
3599 /* set gpio mode register (IO_16 and IO_17 set as analog
3600 * inputs, other is gpio)
3602 if ((status = signalyzer_h_ctrl_write(
3603 SIGNALYZER_DATA_BUFFER_ADDR,
3604 (uint32_t)(signalyzer_h_side << 8))) != FT_OK)
3606 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3608 return ERROR_JTAG_DEVICE_ERROR;
3611 if ((status = signalyzer_h_ctrl_write(
3612 SIGNALYZER_DATA_BUFFER_ADDR + 1, 0x0060))
3615 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3617 return ERROR_JTAG_DEVICE_ERROR;
3620 if ((status = signalyzer_h_ctrl_write(
3621 SIGNALYZER_COMMAND_ADDR,
3622 SIGNALYZER_COMMAND_GPIO_MODE)) != FT_OK)
3624 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3626 return ERROR_JTAG_DEVICE_ERROR;
3629 /* set gpio register (all inputs, for -P modules,
3630 * PSU will be turned off)
3632 if ((status = signalyzer_h_ctrl_write(
3633 SIGNALYZER_DATA_BUFFER_ADDR,
3634 (uint32_t)(signalyzer_h_side << 8))) != FT_OK)
3636 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3638 return ERROR_JTAG_DEVICE_ERROR;
3641 if ((status = signalyzer_h_ctrl_write(
3642 SIGNALYZER_DATA_BUFFER_ADDR + 1, 0x0000))
3645 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3647 return ERROR_JTAG_DEVICE_ERROR;
3650 if ((status = signalyzer_h_ctrl_write(
3651 SIGNALYZER_COMMAND_ADDR,
3652 SIGNALYZER_COMMAND_GPIO_STATE)) != FT_OK)
3654 LOG_ERROR("signalyzer_h_ctrl_write returned: %lu",
3656 return ERROR_JTAG_DEVICE_ERROR;
3661 else if (signalyzer_h_adapter_type == 0x0000)
3663 LOG_INFO("Signalyzer: No external modules were detected.");
3671 low_direction = 0x1b;
3674 high_direction = 0x0;
3676 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3678 low_direction &= ~nTRSTnOE; /* nTRST input */
3679 low_output &= ~nTRST; /* nTRST = 0 */
3683 low_direction |= nTRSTnOE; /* nTRST output */
3684 low_output |= nTRST; /* nTRST = 1 */
3687 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3689 low_direction |= nSRSTnOE; /* nSRST output */
3690 low_output |= nSRST; /* nSRST = 1 */
3694 low_direction &= ~nSRSTnOE; /* nSRST input */
3695 low_output &= ~nSRST; /* nSRST = 0 */
3700 LOG_ERROR("Unknown module type is detected: %.4x",
3701 signalyzer_h_adapter_type);
3702 return ERROR_JTAG_DEVICE_ERROR;
3705 /* initialize low byte of controller for jtag operation */
3707 buf[1] = low_output;
3708 buf[2] = low_direction;
3710 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK)
3711 || (bytes_written != 3))
3713 LOG_ERROR("couldn't initialize Signalyzer-H layout");
3714 return ERROR_JTAG_INIT_FAILED;
3717 #if BUILD_FT2232_FTD2XX == 1
3718 if (ftdi_device == FT_DEVICE_2232H)
3720 /* initialize high byte of controller for jtag operation */
3722 buf[1] = high_output;
3723 buf[2] = high_direction;
3725 if ((ft2232_write(buf, 3, &bytes_written) != ERROR_OK)
3726 || (bytes_written != 3))
3728 LOG_ERROR("couldn't initialize Signalyzer-H layout");
3729 return ERROR_JTAG_INIT_FAILED;
3732 #elif BUILD_FT2232_LIBFTDI == 1
3733 if (ftdi_device == TYPE_2232H)
3735 /* initialize high byte of controller for jtag operation */
3737 buf[1] = high_output;
3738 buf[2] = high_direction;
3740 if ((ft2232_write(buf, 3, &bytes_written) != ERROR_OK)
3741 || (bytes_written != 3))
3743 LOG_ERROR("couldn't initialize Signalyzer-H layout");
3744 return ERROR_JTAG_INIT_FAILED;
3751 static void signalyzer_h_reset(int trst, int srst)
3753 enum reset_types jtag_reset_config = jtag_get_reset_config();
3755 /* ADAPTOR: EM_LT16_A */
3756 if (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_LT16_A)
3760 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3761 /* switch to output pin (output is low) */
3762 low_direction |= nTRSTnOE;
3764 /* switch output low */
3765 low_output &= ~nTRST;
3769 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3770 /* switch to input pin (high-Z + internal
3771 * and external pullup) */
3772 low_direction &= ~nTRSTnOE;
3774 /* switch output high */
3775 low_output |= nTRST;
3780 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3781 /* switch output low */
3782 low_output &= ~nSRST;
3784 /* switch to output pin (output is low) */
3785 low_direction |= nSRSTnOE;
3789 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3790 /* switch output high */
3791 low_output |= nSRST;
3793 /* switch to input pin (high-Z) */
3794 low_direction &= ~nSRSTnOE;
3797 /* command "set data bits low byte" */
3799 buffer_write(low_output);
3800 buffer_write(low_direction);
3801 LOG_DEBUG("trst: %i, srst: %i, low_output: 0x%2.2x, "
3802 "low_direction: 0x%2.2x",
3803 trst, srst, low_output, low_direction);
3805 /* ADAPTOR: EM_ARM_JTAG, EM_ARM_JTAG_P, EM_JTAG, EM_JTAG_P */
3806 else if ((signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG) ||
3807 (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_ARM_JTAG_P) ||
3808 (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_JTAG) ||
3809 (signalyzer_h_adapter_type == SIGNALYZER_MODULE_TYPE_EM_JTAG_P))
3813 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3814 high_output &= ~nTRSTnOE;
3816 high_output &= ~nTRST;
3820 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3821 high_output |= nTRSTnOE;
3823 high_output |= nTRST;
3828 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3829 high_output &= ~nSRST;
3831 high_output &= ~nSRSTnOE;
3835 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3836 high_output |= nSRST;
3838 high_output |= nSRSTnOE;
3841 /* command "set data bits high byte" */
3843 buffer_write(high_output);
3844 buffer_write(high_direction);
3845 LOG_INFO("trst: %i, srst: %i, high_output: 0x%2.2x, "
3846 "high_direction: 0x%2.2x",
3847 trst, srst, high_output, high_direction);
3849 else if (signalyzer_h_adapter_type == 0x0000)
3853 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3854 /* switch to output pin (output is low) */
3855 low_direction |= nTRSTnOE;
3857 /* switch output low */
3858 low_output &= ~nTRST;
3862 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3863 /* switch to input pin (high-Z + internal
3864 * and external pullup) */
3865 low_direction &= ~nTRSTnOE;
3867 /* switch output high */
3868 low_output |= nTRST;
3873 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3874 /* switch output low */
3875 low_output &= ~nSRST;
3877 /* switch to output pin (output is low) */
3878 low_direction |= nSRSTnOE;
3882 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3883 /* switch output high */
3884 low_output |= nSRST;
3886 /* switch to input pin (high-Z) */
3887 low_direction &= ~nSRSTnOE;
3890 /* command "set data bits low byte" */
3892 buffer_write(low_output);
3893 buffer_write(low_direction);
3894 LOG_DEBUG("trst: %i, srst: %i, low_output: 0x%2.2x, "
3895 "low_direction: 0x%2.2x",
3896 trst, srst, low_output, low_direction);
3900 static void signalyzer_h_blink(void)
3902 signalyzer_h_led_set(signalyzer_h_side, SIGNALYZER_LED_RED, 100, 0, 1);
3905 /********************************************************************
3906 * Support for KT-LINK
3907 * JTAG adapter from KRISTECH
3908 * http://www.kristech.eu
3909 *******************************************************************/
3910 static int ktlink_init(void)
3913 uint32_t bytes_written;
3914 uint8_t swd_en = 0x20; //0x20 SWD disable, 0x00 SWD enable (ADBUS5)
3916 low_output = 0x08 | swd_en; // value; TMS=1,TCK=0,TDI=0,SWD=swd_en
3917 low_direction = 0x3B; // out=1; TCK/TDI/TMS=out,TDO=in,SWD=out,RTCK=in,SRSTIN=in
3919 // initialize low port
3920 buf[0] = 0x80; // command "set data bits low byte"
3921 buf[1] = low_output;
3922 buf[2] = low_direction;
3923 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
3925 if ( ( ( ft2232_write(buf, 3, &bytes_written) ) != ERROR_OK ) || (bytes_written != 3) )
3927 LOG_ERROR("couldn't initialize FT2232 with 'ktlink' layout");
3928 return ERROR_JTAG_INIT_FAILED;
3936 high_output = 0x80; // turn LED on
3937 high_direction = 0xFF; // all outputs
3939 enum reset_types jtag_reset_config = jtag_get_reset_config();
3941 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3943 high_output |= nTRSTnOE;
3944 high_output &= ~nTRST;
3948 high_output &= ~nTRSTnOE;
3949 high_output |= nTRST;
3952 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
3954 high_output &= ~nSRSTnOE;
3955 high_output |= nSRST;
3959 high_output |= nSRSTnOE;
3960 high_output &= ~nSRST;
3963 // initialize high port
3964 buf[0] = 0x82; // command "set data bits high byte"
3965 buf[1] = high_output; // value
3966 buf[2] = high_direction;
3967 LOG_DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
3969 if ( ( ( ft2232_write(buf, 3, &bytes_written) ) != ERROR_OK ) || (bytes_written != 3) )
3971 LOG_ERROR("couldn't initialize FT2232 with 'ktlink' layout");
3972 return ERROR_JTAG_INIT_FAILED;
3978 static void ktlink_reset(int trst, int srst)
3980 enum reset_types jtag_reset_config = jtag_get_reset_config();
3984 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3985 high_output &= ~nTRSTnOE;
3987 high_output &= ~nTRST;
3991 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
3992 high_output |= nTRSTnOE;
3994 high_output |= nTRST;
3999 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
4000 high_output &= ~nSRST;
4002 high_output &= ~nSRSTnOE;
4006 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
4007 high_output |= nSRST;
4009 high_output |= nSRSTnOE;
4012 buffer_write(0x82); // command "set data bits high byte"
4013 buffer_write(high_output);
4014 buffer_write(high_direction);
4015 LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output,high_direction);
4018 static void ktlink_blink(void)
4020 /*LED connected to ACBUS7 */
4021 if (high_output & 0x80)
4022 high_output &= 0x7F;
4024 high_output |= 0x80;
4026 buffer_write(0x82); // command "set data bits high byte"
4027 buffer_write(high_output);
4028 buffer_write(high_direction);