1 /***************************************************************************
2 * Copyright (C) 2004, 2006 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
19 ***************************************************************************/
29 #include "replacements.h"
31 /* project specific includes */
35 #include "configuration.h"
36 #include "time_support.h"
43 /* FT2232 access library includes */
44 #if BUILD_FT2232_FTD2XX == 1
46 #elif BUILD_FT2232_LIBFTDI == 1
53 /* enable this to debug io latency
56 #define _DEBUG_USB_IO_
59 /* enable this to debug communication
62 #define _DEBUG_USB_COMMS_
65 int ft2232_execute_queue(void);
67 int ft2232_speed(int speed);
68 int ft2232_register_commands(struct command_context_s *cmd_ctx);
69 int ft2232_init(void);
70 int ft2232_quit(void);
72 int ft2232_handle_device_desc_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
73 int ft2232_handle_serial_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
74 int ft2232_handle_layout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
75 int ft2232_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
76 int ft2232_handle_latency_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
78 char *ft2232_device_desc = NULL;
79 char *ft2232_serial = NULL;
80 char *ft2232_layout = NULL;
81 unsigned char ft2232_latency = 2;
84 /* vid = pid = 0 marks the end of the list */
85 static u16 ft2232_vid[MAX_USB_IDS+1] = { 0x0403, 0 };
86 static u16 ft2232_pid[MAX_USB_IDS+1] = { 0x6010, 0 };
88 typedef struct ft2232_layout_s
92 void(*reset)(int trst, int srst);
96 /* init procedures for supported layouts */
97 int usbjtag_init(void);
98 int jtagkey_init(void);
99 int olimex_jtag_init(void);
100 int flyswatter_init(void);
101 int turtle_init(void);
102 int comstick_init(void);
103 int stm32stick_init(void);
105 /* reset procedures for supported layouts */
106 void usbjtag_reset(int trst, int srst);
107 void jtagkey_reset(int trst, int srst);
108 void olimex_jtag_reset(int trst, int srst);
109 void flyswatter_reset(int trst, int srst);
110 void turtle_reset(int trst, int srst);
111 void comstick_reset(int trst, int srst);
112 void stm32stick_reset(int trst, int srst);
114 /* blink procedures for layouts that support a blinking led */
115 void olimex_jtag_blink(void);
116 void turtle_jtag_blink(void);
118 ft2232_layout_t ft2232_layouts[] =
120 {"usbjtag", usbjtag_init, usbjtag_reset, NULL},
121 {"jtagkey", jtagkey_init, jtagkey_reset, NULL},
122 {"jtagkey_prototype_v1", jtagkey_init, jtagkey_reset, NULL},
123 {"oocdlink", jtagkey_init, jtagkey_reset, NULL},
124 {"signalyzer", usbjtag_init, usbjtag_reset, NULL},
125 {"evb_lm3s811", usbjtag_init, usbjtag_reset, NULL},
126 {"olimex-jtag", olimex_jtag_init, olimex_jtag_reset, olimex_jtag_blink},
127 {"flyswatter", flyswatter_init, flyswatter_reset, NULL},
128 {"turtelizer2", turtle_init, turtle_reset, turtle_jtag_blink},
129 {"comstick", comstick_init, comstick_reset, NULL},
130 {"stm32stick", stm32stick_init, stm32stick_reset, NULL},
134 static u8 nTRST, nTRSTnOE, nSRST, nSRSTnOE;
136 static ft2232_layout_t *layout;
137 static u8 low_output = 0x0;
138 static u8 low_direction = 0x0;
139 static u8 high_output = 0x0;
140 static u8 high_direction = 0x0;
142 #if BUILD_FT2232_FTD2XX == 1
143 static FT_HANDLE ftdih = NULL;
144 #elif BUILD_FT2232_LIBFTDI == 1
145 static struct ftdi_context ftdic;
148 static u8 *ft2232_buffer = NULL;
149 static int ft2232_buffer_size = 0;
150 static int ft2232_read_pointer = 0;
151 static int ft2232_expect_read = 0;
152 #define FT2232_BUFFER_SIZE 131072
153 #define BUFFER_ADD ft2232_buffer[ft2232_buffer_size++]
154 #define BUFFER_READ ft2232_buffer[ft2232_read_pointer++]
156 jtag_interface_t ft2232_interface =
161 .execute_queue = ft2232_execute_queue,
163 .speed = ft2232_speed,
164 .register_commands = ft2232_register_commands,
169 int ft2232_write(u8 *buf, int size, u32* bytes_written)
171 #if BUILD_FT2232_FTD2XX == 1
173 DWORD dw_bytes_written;
174 if ((status = FT_Write(ftdih, buf, size, &dw_bytes_written)) != FT_OK)
176 *bytes_written = dw_bytes_written;
177 ERROR("FT_Write returned: %lu", status);
178 return ERROR_JTAG_DEVICE_ERROR;
182 *bytes_written = dw_bytes_written;
185 #elif BUILD_FT2232_LIBFTDI == 1
187 if ((retval = ftdi_write_data(&ftdic, buf, size)) < 0)
190 ERROR("ftdi_write_data: %s", ftdi_get_error_string(&ftdic));
191 return ERROR_JTAG_DEVICE_ERROR;
195 *bytes_written = retval;
201 int ft2232_read(u8* buf, int size, u32* bytes_read)
203 #if BUILD_FT2232_FTD2XX == 1
209 while ((*bytes_read < size) && timeout--)
211 if ((status = FT_Read(ftdih, buf + *bytes_read, size -
212 *bytes_read, &dw_bytes_read)) != FT_OK)
215 ERROR("FT_Read returned: %lu", status);
216 return ERROR_JTAG_DEVICE_ERROR;
218 *bytes_read += dw_bytes_read;
220 #elif BUILD_FT2232_LIBFTDI == 1
225 while ((*bytes_read < size) && timeout--)
227 if ((retval = ftdi_read_data(&ftdic, buf + *bytes_read, size - *bytes_read)) < 0)
230 ERROR("ftdi_read_data: %s", ftdi_get_error_string(&ftdic));
231 return ERROR_JTAG_DEVICE_ERROR;
233 *bytes_read += retval;
237 if (*bytes_read < size)
239 ERROR("couldn't read the requested number of bytes from FT2232 device (%i < %i)", *bytes_read, size);
240 return ERROR_JTAG_DEVICE_ERROR;
246 int ft2232_speed(int speed)
252 buf[0] = 0x86; /* command "set divisor" */
253 buf[1] = speed & 0xff; /* valueL (0=6MHz, 1=3MHz, 2=2.0MHz, ...*/
254 buf[2] = (speed >> 8) & 0xff; /* valueH */
256 DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
257 if (((retval = ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
259 ERROR("couldn't set FT2232 TCK speed");
268 int ft2232_register_commands(struct command_context_s *cmd_ctx)
270 register_command(cmd_ctx, NULL, "ft2232_device_desc", ft2232_handle_device_desc_command,
271 COMMAND_CONFIG, NULL);
272 register_command(cmd_ctx, NULL, "ft2232_serial", ft2232_handle_serial_command,
273 COMMAND_CONFIG, NULL);
274 register_command(cmd_ctx, NULL, "ft2232_layout", ft2232_handle_layout_command,
275 COMMAND_CONFIG, NULL);
276 register_command(cmd_ctx, NULL, "ft2232_vid_pid", ft2232_handle_vid_pid_command,
277 COMMAND_CONFIG, NULL);
278 register_command(cmd_ctx, NULL, "ft2232_latency", ft2232_handle_latency_command,
279 COMMAND_CONFIG, NULL);
283 void ft2232_end_state(enum tap_state state)
285 if (tap_move_map[state] != -1)
289 ERROR("BUG: %i is not a valid end state", state);
294 void ft2232_read_scan(enum scan_type type, u8* buffer, int scan_size)
296 int num_bytes = ((scan_size + 7) / 8);
297 int bits_left = scan_size;
300 while(num_bytes-- > 1)
302 buffer[cur_byte] = BUFFER_READ;
307 buffer[cur_byte] = 0x0;
311 buffer[cur_byte] = BUFFER_READ >> 1;
314 buffer[cur_byte] = (buffer[cur_byte] | ((BUFFER_READ & 0x02) << 6)) >> (8 - bits_left);
318 void ft2232_debug_dump_buffer(void)
324 for (i = 0; i < ft2232_buffer_size; i++)
326 line_p += snprintf(line_p, 256 - (line_p - line), "%2.2x ", ft2232_buffer[i]);
338 int ft2232_send_and_recv(jtag_command_t *first, jtag_command_t *last)
348 #ifdef _DEBUG_USB_IO_
349 struct timeval start, inter, inter2, end;
350 struct timeval d_inter, d_inter2, d_end;
353 #ifdef _DEBUG_USB_COMMS_
354 DEBUG("write buffer (size %i):", ft2232_buffer_size);
355 ft2232_debug_dump_buffer();
358 #ifdef _DEBUG_USB_IO_
359 gettimeofday(&start, NULL);
362 if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
364 ERROR("couldn't write MPSSE commands to FT2232");
368 #ifdef _DEBUG_USB_IO_
369 gettimeofday(&inter, NULL);
372 if (ft2232_expect_read)
375 ft2232_buffer_size = 0;
377 #ifdef _DEBUG_USB_IO_
378 gettimeofday(&inter2, NULL);
381 if ((retval = ft2232_read(ft2232_buffer, ft2232_expect_read, &bytes_read)) != ERROR_OK)
383 ERROR("couldn't read from FT2232");
387 #ifdef _DEBUG_USB_IO_
388 gettimeofday(&end, NULL);
390 timeval_subtract(&d_inter, &inter, &start);
391 timeval_subtract(&d_inter2, &inter2, &start);
392 timeval_subtract(&d_end, &end, &start);
394 INFO("inter: %i.%i, inter2: %i.%i end: %i.%i", d_inter.tv_sec, d_inter.tv_usec, d_inter2.tv_sec, d_inter2.tv_usec, d_end.tv_sec, d_end.tv_usec);
398 ft2232_buffer_size = bytes_read;
400 if (ft2232_expect_read != ft2232_buffer_size)
402 ERROR("ft2232_expect_read (%i) != ft2232_buffer_size (%i) (%i retries)", ft2232_expect_read, ft2232_buffer_size, 100 - timeout);
403 ft2232_debug_dump_buffer();
408 #ifdef _DEBUG_USB_COMMS_
409 DEBUG("read buffer (%i retries): %i bytes", 100 - timeout, ft2232_buffer_size);
410 ft2232_debug_dump_buffer();
414 ft2232_expect_read = 0;
415 ft2232_read_pointer = 0;
417 /* return ERROR_OK, unless a jtag_read_buffer returns a failed check
418 * that wasn't handled by a caller-provided error handler
428 type = jtag_scan_type(cmd->cmd.scan);
429 if (type != SCAN_OUT)
431 scan_size = jtag_scan_size(cmd->cmd.scan);
432 buffer = calloc(CEIL(scan_size, 8), 1);
433 ft2232_read_scan(type, buffer, scan_size);
434 if (jtag_read_buffer(buffer, cmd->cmd.scan) != ERROR_OK)
435 retval = ERROR_JTAG_QUEUE_FAILED;
445 ft2232_buffer_size = 0;
450 void ft2232_add_pathmove(pathmove_command_t *cmd)
452 int num_states = cmd->num_states;
462 int num_states_batch = num_states > 7 ? 7 : num_states;
464 /* command "Clock Data to TMS/CS Pin (no Read)" */
466 /* number of states remaining */
467 BUFFER_ADD = num_states_batch - 1;
469 while (num_states_batch--)
471 if (tap_transitions[cur_state].low == cmd->path[state_count])
472 buf_set_u32(&tms_byte, bit_count++, 1, 0x0);
473 else if (tap_transitions[cur_state].high == cmd->path[state_count])
474 buf_set_u32(&tms_byte, bit_count++, 1, 0x1);
477 ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[cmd->path[state_count]]);
481 cur_state = cmd->path[state_count];
486 BUFFER_ADD = tms_byte;
489 end_state = cur_state;
492 void ft2232_add_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size)
494 int num_bytes = (scan_size + 7) / 8;
495 int bits_left = scan_size;
499 if (!((!ir_scan && (cur_state == TAP_SD)) || (ir_scan && (cur_state == TAP_SI))))
501 /* command "Clock Data to TMS/CS Pin (no Read)" */
508 BUFFER_ADD = TAP_MOVE(cur_state, TAP_SI);
513 BUFFER_ADD = TAP_MOVE(cur_state, TAP_SD);
516 //DEBUG("added TMS scan (no read)");
519 /* add command for complete bytes */
520 while (num_bytes > 1)
525 /* Clock Data Bytes In and Out LSB First */
527 //DEBUG("added TDI bytes (io %i)", num_bytes);
529 else if (type == SCAN_OUT)
531 /* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */
533 //DEBUG("added TDI bytes (o)");
535 else if (type == SCAN_IN)
537 /* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */
539 //DEBUG("added TDI bytes (i %i)", num_bytes);
541 thisrun_bytes = (num_bytes > 65537) ? 65536 : (num_bytes - 1);
542 num_bytes -= thisrun_bytes;
543 BUFFER_ADD = (thisrun_bytes - 1) & 0xff;
544 BUFFER_ADD = ((thisrun_bytes - 1) >> 8) & 0xff;
547 /* add complete bytes */
548 while(thisrun_bytes-- > 0)
550 BUFFER_ADD = buffer[cur_byte];
555 else /* (type == SCAN_IN) */
557 bits_left -= 8 * (thisrun_bytes);
561 /* the most signifcant bit is scanned during TAP movement */
563 last_bit = (buffer[cur_byte] >> (bits_left - 1)) & 0x1;
567 /* process remaining bits but the last one */
572 /* Clock Data Bits In and Out LSB First */
574 //DEBUG("added TDI bits (io) %i", bits_left - 1);
576 else if (type == SCAN_OUT)
578 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
580 //DEBUG("added TDI bits (o)");
582 else if (type == SCAN_IN)
584 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
586 //DEBUG("added TDI bits (i %i)", bits_left - 1);
588 BUFFER_ADD = bits_left - 2;
590 BUFFER_ADD = buffer[cur_byte];
593 if ((ir_scan && (end_state == TAP_SI)) ||
594 (!ir_scan && (end_state == TAP_SD)))
598 /* Clock Data Bits In and Out LSB First */
600 //DEBUG("added TDI bits (io) %i", bits_left - 1);
602 else if (type == SCAN_OUT)
604 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
606 //DEBUG("added TDI bits (o)");
608 else if (type == SCAN_IN)
610 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
612 //DEBUG("added TDI bits (i %i)", bits_left - 1);
615 BUFFER_ADD = last_bit;
619 /* move from Shift-IR/DR to end state */
620 if (type != SCAN_OUT)
622 /* Clock Data to TMS/CS Pin with Read */
624 //DEBUG("added TMS scan (read)");
628 /* Clock Data to TMS/CS Pin (no Read) */
630 //DEBUG("added TMS scan (no read)");
633 BUFFER_ADD = TAP_MOVE(cur_state, end_state) | (last_bit << 7);
634 cur_state = end_state;
638 int ft2232_large_scan(scan_command_t *cmd, enum scan_type type, u8 *buffer, int scan_size)
640 int num_bytes = (scan_size + 7) / 8;
641 int bits_left = scan_size;
644 u8 *receive_buffer = malloc(CEIL(scan_size, 8));
645 u8 *receive_pointer = receive_buffer;
649 int thisrun_read = 0;
653 ERROR("BUG: large IR scans are not supported");
657 if (cur_state != TAP_SD)
659 /* command "Clock Data to TMS/CS Pin (no Read)" */
664 BUFFER_ADD = TAP_MOVE(cur_state, TAP_SD);
668 if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
670 ERROR("couldn't write MPSSE commands to FT2232");
673 DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size, bytes_written);
674 ft2232_buffer_size = 0;
676 /* add command for complete bytes */
677 while (num_bytes > 1)
683 /* Clock Data Bytes In and Out LSB First */
685 //DEBUG("added TDI bytes (io %i)", num_bytes);
687 else if (type == SCAN_OUT)
689 /* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */
691 //DEBUG("added TDI bytes (o)");
693 else if (type == SCAN_IN)
695 /* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */
697 //DEBUG("added TDI bytes (i %i)", num_bytes);
699 thisrun_bytes = (num_bytes > 65537) ? 65536 : (num_bytes - 1);
700 thisrun_read = thisrun_bytes;
701 num_bytes -= thisrun_bytes;
702 BUFFER_ADD = (thisrun_bytes - 1) & 0xff;
703 BUFFER_ADD = ((thisrun_bytes - 1) >> 8) & 0xff;
706 /* add complete bytes */
707 while(thisrun_bytes-- > 0)
709 BUFFER_ADD = buffer[cur_byte];
714 else /* (type == SCAN_IN) */
716 bits_left -= 8 * (thisrun_bytes);
719 if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
721 ERROR("couldn't write MPSSE commands to FT2232");
724 DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size, bytes_written);
725 ft2232_buffer_size = 0;
727 if (type != SCAN_OUT)
729 if ((retval = ft2232_read(receive_pointer, thisrun_read, &bytes_read)) != ERROR_OK)
731 ERROR("couldn't read from FT2232");
734 DEBUG("thisrun_read: %i, bytes_read: %i", thisrun_read, bytes_read);
735 receive_pointer += bytes_read;
741 /* the most signifcant bit is scanned during TAP movement */
743 last_bit = (buffer[cur_byte] >> (bits_left - 1)) & 0x1;
747 /* process remaining bits but the last one */
752 /* Clock Data Bits In and Out LSB First */
754 //DEBUG("added TDI bits (io) %i", bits_left - 1);
756 else if (type == SCAN_OUT)
758 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
760 //DEBUG("added TDI bits (o)");
762 else if (type == SCAN_IN)
764 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
766 //DEBUG("added TDI bits (i %i)", bits_left - 1);
768 BUFFER_ADD = bits_left - 2;
770 BUFFER_ADD = buffer[cur_byte];
772 if (type != SCAN_OUT)
776 if (end_state == TAP_SD)
780 /* Clock Data Bits In and Out LSB First */
782 //DEBUG("added TDI bits (io) %i", bits_left - 1);
784 else if (type == SCAN_OUT)
786 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
788 //DEBUG("added TDI bits (o)");
790 else if (type == SCAN_IN)
792 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
794 //DEBUG("added TDI bits (i %i)", bits_left - 1);
797 BUFFER_ADD = last_bit;
801 /* move from Shift-IR/DR to end state */
802 if (type != SCAN_OUT)
804 /* Clock Data to TMS/CS Pin with Read */
806 //DEBUG("added TMS scan (read)");
810 /* Clock Data to TMS/CS Pin (no Read) */
812 //DEBUG("added TMS scan (no read)");
815 BUFFER_ADD = TAP_MOVE(cur_state, end_state) | (last_bit << 7);
816 cur_state = end_state;
819 if (type != SCAN_OUT)
822 if ((retval = ft2232_write(ft2232_buffer, ft2232_buffer_size, &bytes_written)) != ERROR_OK)
824 ERROR("couldn't write MPSSE commands to FT2232");
827 DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size, bytes_written);
828 ft2232_buffer_size = 0;
830 if (type != SCAN_OUT)
832 if ((retval = ft2232_read(receive_pointer, thisrun_read, &bytes_read)) != ERROR_OK)
834 ERROR("couldn't read from FT2232");
837 DEBUG("thisrun_read: %i, bytes_read: %i", thisrun_read, bytes_read);
838 receive_pointer += bytes_read;
844 int ft2232_predict_scan_out(int scan_size, enum scan_type type)
846 int predicted_size = 3;
847 int num_bytes = (scan_size - 1) / 8;
849 if (cur_state != TAP_SD)
852 if (type == SCAN_IN) /* only from device to host */
855 predicted_size += (CEIL(num_bytes, 65536)) * 3;
856 /* remaining bits - 1 (up to 7) */
857 predicted_size += ((scan_size - 1) % 8) ? 2 : 0;
859 else /* host to device, or bidirectional */
862 predicted_size += num_bytes + (CEIL(num_bytes, 65536)) * 3;
863 /* remaining bits -1 (up to 7) */
864 predicted_size += ((scan_size - 1) % 8) ? 3 : 0;
867 return predicted_size;
870 int ft2232_predict_scan_in(int scan_size, enum scan_type type)
872 int predicted_size = 0;
874 if (type != SCAN_OUT)
877 predicted_size += (CEIL(scan_size, 8) > 1) ? (CEIL(scan_size, 8) - 1) : 0;
878 /* remaining bits - 1 */
879 predicted_size += ((scan_size - 1) % 8) ? 1 : 0;
880 /* last bit (from TMS scan) */
884 //DEBUG("scan_size: %i, predicted_size: %i", scan_size, predicted_size);
886 return predicted_size;
889 void usbjtag_reset(int trst, int srst)
894 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
895 low_direction |= nTRSTnOE; /* switch to output pin (output is low) */
897 low_output &= ~nTRST; /* switch output low */
901 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
902 low_direction &= ~nTRSTnOE; /* switch to input pin (high-Z + internal and external pullup) */
904 low_output |= nTRST; /* switch output high */
909 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
910 low_output &= ~nSRST; /* switch output low */
912 low_direction |= nSRSTnOE; /* switch to output pin (output is low) */
916 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
917 low_output |= nSRST; /* switch output high */
919 low_direction &= ~nSRSTnOE; /* switch to input pin (high-Z) */
922 /* command "set data bits low byte" */
924 BUFFER_ADD = low_output;
925 BUFFER_ADD = low_direction;
929 void jtagkey_reset(int trst, int srst)
934 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
935 high_output &= ~nTRSTnOE;
937 high_output &= ~nTRST;
941 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
942 high_output |= nTRSTnOE;
944 high_output |= nTRST;
949 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
950 high_output &= ~nSRST;
952 high_output &= ~nSRSTnOE;
956 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
957 high_output |= nSRST;
959 high_output |= nSRSTnOE;
962 /* command "set data bits high byte" */
964 BUFFER_ADD = high_output;
965 BUFFER_ADD = high_direction;
966 DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
969 void olimex_jtag_reset(int trst, int srst)
974 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
975 high_output &= ~nTRSTnOE;
977 high_output &= ~nTRST;
981 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
982 high_output |= nTRSTnOE;
984 high_output |= nTRST;
989 high_output |= nSRST;
993 high_output &= ~nSRST;
996 /* command "set data bits high byte" */
998 BUFFER_ADD = high_output;
999 BUFFER_ADD = high_direction;
1000 DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
1003 void flyswatter_reset(int trst, int srst)
1007 cur_state = TAP_TLR;
1008 low_output &= ~nTRST;
1012 low_output |= nTRST;
1017 low_output |= nSRST;
1021 low_output &= ~nSRST;
1024 /* command "set data bits low byte" */
1026 BUFFER_ADD = low_output;
1027 BUFFER_ADD = low_direction;
1028 DEBUG("trst: %i, srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", trst, srst, low_output, low_direction);
1031 void turtle_reset(int trst, int srst)
1037 low_output |= nSRST;
1041 low_output &= ~nSRST;
1044 /* command "set data bits low byte" */
1046 BUFFER_ADD = low_output;
1047 BUFFER_ADD = low_direction;
1048 DEBUG("srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", srst, low_output, low_direction);
1051 void comstick_reset(int trst, int srst)
1055 cur_state = TAP_TLR;
1056 high_output &= ~nTRST;
1060 high_output |= nTRST;
1065 high_output &= ~nSRST;
1069 high_output |= nSRST;
1072 /* command "set data bits high byte" */
1074 BUFFER_ADD = high_output;
1075 BUFFER_ADD = high_direction;
1076 DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
1079 void stm32stick_reset(int trst, int srst)
1083 cur_state = TAP_TLR;
1084 high_output &= ~nTRST;
1088 high_output |= nTRST;
1093 low_output &= ~nSRST;
1097 low_output |= nSRST;
1100 /* command "set data bits low byte" */
1102 BUFFER_ADD = low_output;
1103 BUFFER_ADD = low_direction;
1105 /* command "set data bits high byte" */
1107 BUFFER_ADD = high_output;
1108 BUFFER_ADD = high_direction;
1109 DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst, srst, high_output, high_direction);
1112 int ft2232_execute_queue()
1114 jtag_command_t *cmd = jtag_command_queue; /* currently processed command */
1115 jtag_command_t *first_unsent = cmd; /* next command that has to be sent */
1117 int scan_size; /* size of IR or DR scan */
1118 enum scan_type type;
1120 int predicted_size = 0;
1121 int require_send = 0;
1124 /* return ERROR_OK, unless ft2232_send_and_recv reports a failed check
1125 * that wasn't handled by a caller-provided error handler
1129 ft2232_buffer_size = 0;
1130 ft2232_expect_read = 0;
1132 /* blink, if the current layout has that feature */
1140 case JTAG_END_STATE:
1141 if (cmd->cmd.end_state->end_state != -1)
1142 ft2232_end_state(cmd->cmd.end_state->end_state);
1145 /* only send the maximum buffer size that FT2232C can handle */
1147 if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1149 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1150 retval = ERROR_JTAG_QUEUE_FAILED;
1155 layout->reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
1158 #ifdef _DEBUG_JTAG_IO_
1159 DEBUG("trst: %i, srst: %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
1163 /* only send the maximum buffer size that FT2232C can handle */
1165 if (cur_state != TAP_RTI)
1166 predicted_size += 3;
1167 predicted_size += 3 * CEIL(cmd->cmd.runtest->num_cycles, 7);
1168 if ((cmd->cmd.runtest->end_state != -1) && (cmd->cmd.runtest->end_state != TAP_RTI))
1169 predicted_size += 3;
1170 if ((cmd->cmd.runtest->end_state == -1) && (end_state != TAP_RTI))
1171 predicted_size += 3;
1172 if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1174 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1175 retval = ERROR_JTAG_QUEUE_FAILED;
1179 if (cur_state != TAP_RTI)
1181 /* command "Clock Data to TMS/CS Pin (no Read)" */
1186 BUFFER_ADD = TAP_MOVE(cur_state, TAP_RTI);
1187 cur_state = TAP_RTI;
1190 i = cmd->cmd.runtest->num_cycles;
1193 /* command "Clock Data to TMS/CS Pin (no Read)" */
1196 BUFFER_ADD = (i > 7) ? 6 : (i - 1);
1199 cur_state = TAP_RTI;
1200 i -= (i > 7) ? 7 : i;
1201 //DEBUG("added TMS scan (no read)");
1203 if (cmd->cmd.runtest->end_state != -1)
1204 ft2232_end_state(cmd->cmd.runtest->end_state);
1205 if (cur_state != end_state)
1207 /* command "Clock Data to TMS/CS Pin (no Read)" */
1212 BUFFER_ADD = TAP_MOVE(cur_state, end_state);
1213 cur_state = end_state;
1214 //DEBUG("added TMS scan (no read)");
1217 #ifdef _DEBUG_JTAG_IO_
1218 DEBUG("runtest: %i, end in %i", cmd->cmd.runtest->num_cycles, end_state);
1221 case JTAG_STATEMOVE:
1222 /* only send the maximum buffer size that FT2232C can handle */
1224 if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1226 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1227 retval = ERROR_JTAG_QUEUE_FAILED;
1231 if (cmd->cmd.statemove->end_state != -1)
1232 ft2232_end_state(cmd->cmd.statemove->end_state);
1233 /* command "Clock Data to TMS/CS Pin (no Read)" */
1238 BUFFER_ADD = TAP_MOVE(cur_state, end_state);
1239 //DEBUG("added TMS scan (no read)");
1240 cur_state = end_state;
1242 #ifdef _DEBUG_JTAG_IO_
1243 DEBUG("statemove: %i", end_state);
1247 /* only send the maximum buffer size that FT2232C can handle */
1248 predicted_size = 3 * CEIL(cmd->cmd.pathmove->num_states, 7);
1249 if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1251 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1252 retval = ERROR_JTAG_QUEUE_FAILED;
1256 ft2232_add_pathmove(cmd->cmd.pathmove);
1258 #ifdef _DEBUG_JTAG_IO_
1259 DEBUG("pathmove: %i states, end in %i", cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
1263 scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
1264 type = jtag_scan_type(cmd->cmd.scan);
1265 predicted_size = ft2232_predict_scan_out(scan_size, type);
1266 if ((predicted_size + 1) > FT2232_BUFFER_SIZE)
1268 DEBUG("oversized ft2232 scan (predicted_size > FT2232_BUFFER_SIZE)");
1269 /* unsent commands before this */
1270 if (first_unsent != cmd)
1271 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1272 retval = ERROR_JTAG_QUEUE_FAILED;
1274 /* current command */
1275 if (cmd->cmd.scan->end_state != -1)
1276 ft2232_end_state(cmd->cmd.scan->end_state);
1277 ft2232_large_scan(cmd->cmd.scan, type, buffer, scan_size);
1279 first_unsent = cmd->next;
1284 else if (ft2232_buffer_size + predicted_size + 1 > FT2232_BUFFER_SIZE)
1286 DEBUG("ft2232 buffer size reached, sending queued commands (first_unsent: %p, cmd: %p)", first_unsent, cmd);
1287 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1288 retval = ERROR_JTAG_QUEUE_FAILED;
1292 ft2232_expect_read += ft2232_predict_scan_in(scan_size, type);
1293 //DEBUG("new read size: %i", ft2232_expect_read);
1294 if (cmd->cmd.scan->end_state != -1)
1295 ft2232_end_state(cmd->cmd.scan->end_state);
1296 ft2232_add_scan(cmd->cmd.scan->ir_scan, type, buffer, scan_size);
1300 #ifdef _DEBUG_JTAG_IO_
1301 DEBUG("%s scan, %i bit, end in %i", (cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size, end_state);
1305 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1306 retval = ERROR_JTAG_QUEUE_FAILED;
1307 first_unsent = cmd->next;
1308 jtag_sleep(cmd->cmd.sleep->us);
1309 #ifdef _DEBUG_JTAG_IO_
1310 DEBUG("sleep %i usec", cmd->cmd.sleep->us);
1314 ERROR("BUG: unknown JTAG command type encountered");
1320 if (require_send > 0)
1321 if (ft2232_send_and_recv(first_unsent, cmd) != ERROR_OK)
1322 retval = ERROR_JTAG_QUEUE_FAILED;
1327 #if BUILD_FT2232_FTD2XX == 1
1328 static int ft2232_init_ftd2xx(u16 vid, u16 pid, int more, int *try_more)
1331 DWORD openex_flags = 0;
1332 char *openex_string = NULL;
1335 DEBUG("'ft2232' interface using FTD2XX with '%s' layout (%4.4x:%4.4x)",
1336 ft2232_layout, vid, pid);
1339 /* Add non-standard Vid/Pid to the linux driver */
1340 if ((status = FT_SetVIDPID(vid, pid)) != FT_OK)
1342 WARNING("couldn't add %4.4x:%4.4x",
1347 if (ft2232_device_desc && ft2232_serial)
1349 WARNING("can't open by device description and serial number, giving precedence to serial");
1350 ft2232_device_desc = NULL;
1353 if (ft2232_device_desc)
1355 openex_string = ft2232_device_desc;
1356 openex_flags = FT_OPEN_BY_DESCRIPTION;
1358 else if (ft2232_serial)
1360 openex_string = ft2232_serial;
1361 openex_flags = FT_OPEN_BY_SERIAL_NUMBER;
1365 ERROR("neither device description nor serial number specified");
1366 ERROR("please add \"ft2232_device_desc <string>\" or \"ft2232_serial <string>\" to your .cfg file");
1368 return ERROR_JTAG_INIT_FAILED;
1371 if ((status = FT_OpenEx(openex_string, openex_flags, &ftdih)) != FT_OK)
1376 WARNING("unable to open ftdi device (trying more): %lu",
1379 return ERROR_JTAG_INIT_FAILED;
1381 ERROR("unable to open ftdi device: %lu", status);
1382 status = FT_ListDevices(&num_devices, NULL, FT_LIST_NUMBER_ONLY);
1383 if (status == FT_OK)
1385 char **desc_array = malloc(sizeof(char*) * (num_devices + 1));
1388 for (i = 0; i < num_devices; i++)
1389 desc_array[i] = malloc(64);
1390 desc_array[num_devices] = NULL;
1392 status = FT_ListDevices(desc_array, &num_devices, FT_LIST_ALL | openex_flags);
1394 if (status == FT_OK)
1396 ERROR("ListDevices: %lu\n", num_devices);
1397 for (i = 0; i < num_devices; i++)
1398 ERROR("%i: %s", i, desc_array[i]);
1401 for (i = 0; i < num_devices; i++)
1402 free(desc_array[i]);
1407 ERROR("ListDevices: NONE\n");
1409 return ERROR_JTAG_INIT_FAILED;
1412 if ((status = FT_SetLatencyTimer(ftdih, ft2232_latency)) != FT_OK)
1414 ERROR("unable to set latency timer: %lu", status);
1415 return ERROR_JTAG_INIT_FAILED;
1418 if ((status = FT_GetLatencyTimer(ftdih, &latency_timer)) != FT_OK)
1420 ERROR("unable to get latency timer: %lu", status);
1421 return ERROR_JTAG_INIT_FAILED;
1425 DEBUG("current latency timer: %i", latency_timer);
1428 if ((status = FT_SetTimeouts(ftdih, 5000, 5000)) != FT_OK)
1430 ERROR("unable to set timeouts: %lu", status);
1431 return ERROR_JTAG_INIT_FAILED;
1434 if ((status = FT_SetBitMode(ftdih, 0x0b, 2)) != FT_OK)
1436 ERROR("unable to enable bit i/o mode: %lu", status);
1437 return ERROR_JTAG_INIT_FAILED;
1443 static int ft2232_purge_ftd2xx(void)
1447 if ((status = FT_Purge(ftdih, FT_PURGE_RX | FT_PURGE_TX)) != FT_OK)
1449 ERROR("error purging ftd2xx device: %lu", status);
1450 return ERROR_JTAG_INIT_FAILED;
1455 #endif /* BUILD_FT2232_FTD2XX == 1 */
1457 #if BUILD_FT2232_LIBFTDI == 1
1458 static int ft2232_init_libftdi(u16 vid, u16 pid, int more, int *try_more)
1462 DEBUG("'ft2232' interface using libftdi with '%s' layout (%4.4x:%4.4x)",
1463 ft2232_layout, vid, pid);
1465 if (ftdi_init(&ftdic) < 0)
1466 return ERROR_JTAG_INIT_FAILED;
1468 /* context, vendor id, product id */
1469 if (ftdi_usb_open_desc(&ftdic, vid, pid, ft2232_device_desc,
1470 ft2232_serial) < 0) {
1472 WARNING("unable to open ftdi device (trying more): %s",
1475 ERROR("unable to open ftdi device: %s", ftdic.error_str);
1477 return ERROR_JTAG_INIT_FAILED;
1480 if (ftdi_set_interface(&ftdic, INTERFACE_A) < 0)
1482 ERROR("unable to select FT2232 channel A: %s", ftdic.error_str);
1483 return ERROR_JTAG_INIT_FAILED;
1486 if (ftdi_usb_reset(&ftdic) < 0)
1488 ERROR("unable to reset ftdi device");
1489 return ERROR_JTAG_INIT_FAILED;
1492 if (ftdi_set_latency_timer(&ftdic, ft2232_latency) < 0)
1494 ERROR("unable to set latency timer");
1495 return ERROR_JTAG_INIT_FAILED;
1498 if (ftdi_get_latency_timer(&ftdic, &latency_timer) < 0)
1500 ERROR("unable to get latency timer");
1501 return ERROR_JTAG_INIT_FAILED;
1505 DEBUG("current latency timer: %i", latency_timer);
1508 ftdi_set_bitmode(&ftdic, 0x0b, 2); /* ctx, JTAG I/O mask */
1513 static int ft2232_purge_libftdi(void)
1515 if (ftdi_usb_purge_buffers(&ftdic) < 0)
1517 ERROR("ftdi_purge_buffers: %s", ftdic.error_str);
1518 return ERROR_JTAG_INIT_FAILED;
1523 #endif /* BUILD_FT2232_LIBFTDI == 1 */
1525 int ft2232_init(void)
1530 ft2232_layout_t *cur_layout = ft2232_layouts;
1533 if ((ft2232_layout == NULL) || (ft2232_layout[0] == 0))
1535 ft2232_layout = "usbjtag";
1536 WARNING("No ft2232 layout specified, using default 'usbjtag'");
1539 while (cur_layout->name)
1541 if (strcmp(cur_layout->name, ft2232_layout) == 0)
1543 layout = cur_layout;
1551 ERROR("No matching layout found for %s", ft2232_layout);
1552 return ERROR_JTAG_INIT_FAILED;
1555 for (i = 0; 1; i++) {
1557 * "more indicates that there are more IDs to try, so we should
1558 * not print an error for an ID mismatch (but for anything
1561 * try_more indicates that the error code returned indicates an
1562 * ID mismatch (and nothing else) and that we should proceeed
1563 * with the next ID pair.
1565 int more = ft2232_vid[i+1] || ft2232_pid[i+1];
1568 #if BUILD_FT2232_FTD2XX == 1
1569 retval = ft2232_init_ftd2xx(ft2232_vid[i], ft2232_pid[i],
1571 #elif BUILD_FT2232_LIBFTDI == 1
1572 retval = ft2232_init_libftdi(ft2232_vid[i], ft2232_pid[i],
1577 if (!more || !try_more)
1581 ft2232_buffer_size = 0;
1582 ft2232_buffer = malloc(FT2232_BUFFER_SIZE);
1584 if (layout->init() != ERROR_OK)
1585 return ERROR_JTAG_INIT_FAILED;
1587 ft2232_speed(jtag_speed);
1589 buf[0] = 0x85; /* Disconnect TDI/DO to TDO/DI for Loopback */
1590 if (((retval = ft2232_write(buf, 1, &bytes_written)) != ERROR_OK) || (bytes_written != 1))
1592 ERROR("couldn't write to FT2232 to disable loopback");
1593 return ERROR_JTAG_INIT_FAILED;
1596 #if BUILD_FT2232_FTD2XX == 1
1597 return ft2232_purge_ftd2xx();
1598 #elif BUILD_FT2232_LIBFTDI == 1
1599 return ft2232_purge_libftdi();
1605 int usbjtag_init(void)
1611 low_direction = 0x0b;
1613 if (strcmp(ft2232_layout, "usbjtag") == 0)
1620 else if (strcmp(ft2232_layout, "signalyzer") == 0)
1627 else if (strcmp(ft2232_layout, "evb_lm3s811") == 0)
1634 low_direction = 0x8b;
1638 ERROR("BUG: usbjtag_init called for unknown layout '%s'", ft2232_layout);
1639 return ERROR_JTAG_INIT_FAILED;
1642 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1644 low_direction &= ~nTRSTnOE; /* nTRST input */
1645 low_output &= ~nTRST; /* nTRST = 0 */
1649 low_direction |= nTRSTnOE; /* nTRST output */
1650 low_output |= nTRST; /* nTRST = 1 */
1653 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
1655 low_direction |= nSRSTnOE; /* nSRST output */
1656 low_output |= nSRST; /* nSRST = 1 */
1660 low_direction &= ~nSRSTnOE; /* nSRST input */
1661 low_output &= ~nSRST; /* nSRST = 0 */
1664 /* initialize low byte for jtag */
1665 buf[0] = 0x80; /* command "set data bits low byte" */
1666 buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, xRST high) */
1667 buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in */
1668 DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1670 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1672 ERROR("couldn't initialize FT2232 with 'USBJTAG' layout");
1673 return ERROR_JTAG_INIT_FAILED;
1679 int jtagkey_init(void)
1685 low_direction = 0x1b;
1687 /* initialize low byte for jtag */
1688 buf[0] = 0x80; /* command "set data bits low byte" */
1689 buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
1690 buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
1691 DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1693 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1695 ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
1696 return ERROR_JTAG_INIT_FAILED;
1699 if (strcmp(layout->name, "jtagkey") == 0)
1706 else if ((strcmp(layout->name, "jtagkey_prototype_v1") == 0) ||
1707 (strcmp(layout->name, "oocdlink") == 0))
1716 ERROR("BUG: jtagkey_init called for non jtagkey layout");
1721 high_direction = 0x0f;
1723 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1725 high_output |= nTRSTnOE;
1726 high_output &= ~nTRST;
1730 high_output &= ~nTRSTnOE;
1731 high_output |= nTRST;
1734 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
1736 high_output &= ~nSRSTnOE;
1737 high_output |= nSRST;
1741 high_output |= nSRSTnOE;
1742 high_output &= ~nSRST;
1745 /* initialize high port */
1746 buf[0] = 0x82; /* command "set data bits high byte" */
1747 buf[1] = high_output; /* value */
1748 buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
1749 DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1751 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1753 ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
1754 return ERROR_JTAG_INIT_FAILED;
1760 int olimex_jtag_init(void)
1766 low_direction = 0x1b;
1768 /* initialize low byte for jtag */
1769 buf[0] = 0x80; /* command "set data bits low byte" */
1770 buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
1771 buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
1772 DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1774 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1776 ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
1777 return ERROR_JTAG_INIT_FAILED;
1783 nSRSTnOE = 0x00; /* no output enable for nSRST */
1786 high_direction = 0x0f;
1788 if (jtag_reset_config & RESET_TRST_OPEN_DRAIN)
1790 high_output |= nTRSTnOE;
1791 high_output &= ~nTRST;
1795 high_output &= ~nTRSTnOE;
1796 high_output |= nTRST;
1799 if (jtag_reset_config & RESET_SRST_PUSH_PULL)
1801 ERROR("can't set nSRST to push-pull on the Olimex ARM-USB-OCD");
1805 high_output &= ~nSRST;
1808 /* turn red LED on */
1809 high_output |= 0x08;
1811 /* initialize high port */
1812 buf[0] = 0x82; /* command "set data bits high byte" */
1813 buf[1] = high_output; /* value */
1814 buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
1815 DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1817 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1819 ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
1820 return ERROR_JTAG_INIT_FAILED;
1826 int flyswatter_init(void)
1832 low_direction = 0xfb;
1834 /* initialize low byte for jtag */
1835 buf[0] = 0x80; /* command "set data bits low byte" */
1836 buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
1837 buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE[12]=out, n[ST]srst=out */
1838 DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1840 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1842 ERROR("couldn't initialize FT2232 with 'flyswatter' layout");
1843 return ERROR_JTAG_INIT_FAILED;
1847 nTRSTnOE = 0x0; /* not output enable for nTRST */
1849 nSRSTnOE = 0x00; /* no output enable for nSRST */
1852 high_direction = 0x0c;
1854 /* turn red LED1 on, LED2 off */
1855 high_output |= 0x08;
1857 /* initialize high port */
1858 buf[0] = 0x82; /* command "set data bits high byte" */
1859 buf[1] = high_output; /* value */
1860 buf[2] = high_direction; /* all outputs (xRST and xRSTnOE) */
1861 DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1863 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1865 ERROR("couldn't initialize FT2232 with 'flyswatter' layout");
1866 return ERROR_JTAG_INIT_FAILED;
1872 int turtle_init(void)
1878 low_direction = 0x5b;
1880 /* initialize low byte for jtag */
1881 buf[0] = 0x80; /* command "set data bits low byte" */
1882 buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
1883 buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
1884 DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1886 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1888 ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
1889 return ERROR_JTAG_INIT_FAILED;
1895 high_direction = 0x0C;
1897 /* initialize high port */
1898 buf[0] = 0x82; /* command "set data bits high byte" */
1899 buf[1] = high_output;
1900 buf[2] = high_direction;
1901 DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1903 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1905 ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
1906 return ERROR_JTAG_INIT_FAILED;
1912 int comstick_init(void)
1918 low_direction = 0x0b;
1920 /* initialize low byte for jtag */
1921 buf[0] = 0x80; /* command "set data bits low byte" */
1922 buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
1923 buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
1924 DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1926 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1928 ERROR("couldn't initialize FT2232 with 'comstick' layout");
1929 return ERROR_JTAG_INIT_FAILED;
1933 nTRSTnOE = 0x00; /* no output enable for nTRST */
1935 nSRSTnOE = 0x00; /* no output enable for nSRST */
1938 high_direction = 0x03;
1940 /* initialize high port */
1941 buf[0] = 0x82; /* command "set data bits high byte" */
1942 buf[1] = high_output;
1943 buf[2] = high_direction;
1944 DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1946 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1948 ERROR("couldn't initialize FT2232 with 'comstick' layout");
1949 return ERROR_JTAG_INIT_FAILED;
1955 int stm32stick_init(void)
1961 low_direction = 0x8b;
1963 /* initialize low byte for jtag */
1964 buf[0] = 0x80; /* command "set data bits low byte" */
1965 buf[1] = low_output; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
1966 buf[2] = low_direction; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
1967 DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1969 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1971 ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
1972 return ERROR_JTAG_INIT_FAILED;
1976 nTRSTnOE = 0x00; /* no output enable for nTRST */
1978 nSRSTnOE = 0x00; /* no output enable for nSRST */
1981 high_direction = 0x03;
1983 /* initialize high port */
1984 buf[0] = 0x82; /* command "set data bits high byte" */
1985 buf[1] = high_output;
1986 buf[2] = high_direction;
1987 DEBUG("%2.2x %2.2x %2.2x", buf[0], buf[1], buf[2]);
1989 if (((ft2232_write(buf, 3, &bytes_written)) != ERROR_OK) || (bytes_written != 3))
1991 ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
1992 return ERROR_JTAG_INIT_FAILED;
1998 void olimex_jtag_blink(void)
2000 /* Olimex ARM-USB-OCD has a LED connected to ACBUS3
2001 * ACBUS3 is bit 3 of the GPIOH port
2003 if (high_output & 0x08)
2005 /* set port pin high */
2006 high_output &= 0x07;
2010 /* set port pin low */
2011 high_output |= 0x08;
2015 BUFFER_ADD = high_output;
2016 BUFFER_ADD = high_direction;
2019 void turtle_jtag_blink(void)
2022 * Turtelizer2 has two LEDs connected to ACBUS2 and ACBUS3
2024 if (high_output & 0x08)
2034 BUFFER_ADD = high_output;
2035 BUFFER_ADD = high_direction;
2039 int ft2232_quit(void)
2041 #if BUILD_FT2232_FTD2XX == 1
2044 status = FT_Close(ftdih);
2045 #elif BUILD_FT2232_LIBFTDI == 1
2046 ftdi_disable_bitbang(&ftdic);
2048 ftdi_usb_close(&ftdic);
2050 ftdi_deinit(&ftdic);
2053 free(ft2232_buffer);
2054 ft2232_buffer = NULL;
2059 int ft2232_handle_device_desc_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2063 ft2232_device_desc = strdup(args[0]);
2067 ERROR("expected exactly one argument to ft2232_device_desc <description>");
2073 int ft2232_handle_serial_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2077 ft2232_serial = strdup(args[0]);
2081 ERROR("expected exactly one argument to ft2232_serial <serial-number>");
2087 int ft2232_handle_layout_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2092 ft2232_layout = malloc(strlen(args[0]) + 1);
2093 strcpy(ft2232_layout, args[0]);
2098 int ft2232_handle_vid_pid_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2102 if (argc > MAX_USB_IDS*2) {
2103 WARNING("ignoring extra IDs in ft2232_vid_pid "
2104 "(maximum is %d pairs)", MAX_USB_IDS);
2105 argc = MAX_USB_IDS*2;
2107 if (argc < 2 || (argc & 1))
2109 WARNING("incomplete ft2232_vid_pid configuration directive");
2114 for (i = 0; i+1 < argc; i += 2) {
2115 ft2232_vid[i >> 1] = strtol(args[i], NULL, 0);
2116 ft2232_pid[i >> 1] = strtol(args[i+1], NULL, 0);
2119 * Explicitly terminate, in case there are multiples instances of
2122 ft2232_vid[i >> 1] = ft2232_pid[i >> 1] = 0;
2127 int ft2232_handle_latency_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2131 ft2232_latency = atoi(args[0]);
2135 ERROR("expected exactly one argument to ft2232_latency <ms>");