1 /***************************************************************************
2 * Copyright (C) 2004, 2006 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * Copyright (C) 2008 by Spencer Oliver *
6 * spen@spen-soft.co.uk *
8 * This program is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
13 * This program is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
18 * You should have received a copy of the GNU General Public License *
19 * along with this program; if not, write to the *
20 * Free Software Foundation, Inc., *
21 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
22 ***************************************************************************/
31 #include "replacements.h"
33 /* project specific includes */
37 #include "configuration.h"
38 #include "time_support.h"
45 /* FT2232 access library includes */
46 #if BUILD_FT2232_FTD2XX == 1
48 #elif BUILD_FT2232_LIBFTDI == 1
52 /* enable this to debug io latency
55 #define _DEBUG_USB_IO_
58 /* enable this to debug communication
61 #define _DEBUG_USB_COMMS_
64 int ft2232_execute_queue(void);
66 int ft2232_speed(int speed
);
67 int ft2232_speed_div(int speed
, int *khz
);
68 int ft2232_khz(int khz
, int *jtag_speed
);
69 int ft2232_register_commands(struct command_context_s
*cmd_ctx
);
70 int ft2232_init(void);
71 int ft2232_quit(void);
73 int ft2232_handle_device_desc_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
74 int ft2232_handle_serial_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
75 int ft2232_handle_layout_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
76 int ft2232_handle_vid_pid_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
77 int ft2232_handle_latency_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
);
79 char *ft2232_device_desc
= NULL
;
80 char *ft2232_serial
= NULL
;
81 char *ft2232_layout
= NULL
;
82 unsigned char ft2232_latency
= 2;
85 /* vid = pid = 0 marks the end of the list */
86 static u16 ft2232_vid
[MAX_USB_IDS
+1] = { 0x0403, 0 };
87 static u16 ft2232_pid
[MAX_USB_IDS
+1] = { 0x6010, 0 };
89 typedef struct ft2232_layout_s
93 void(*reset
)(int trst
, int srst
);
97 /* init procedures for supported layouts */
98 int usbjtag_init(void);
99 int jtagkey_init(void);
100 int olimex_jtag_init(void);
101 int flyswatter_init(void);
102 int turtle_init(void);
103 int comstick_init(void);
104 int stm32stick_init(void);
105 int axm0432_jtag_init(void);
107 /* reset procedures for supported layouts */
108 void usbjtag_reset(int trst
, int srst
);
109 void jtagkey_reset(int trst
, int srst
);
110 void olimex_jtag_reset(int trst
, int srst
);
111 void flyswatter_reset(int trst
, int srst
);
112 void turtle_reset(int trst
, int srst
);
113 void comstick_reset(int trst
, int srst
);
114 void stm32stick_reset(int trst
, int srst
);
115 void axm0432_jtag_reset(int trst
, int srst
);
117 /* blink procedures for layouts that support a blinking led */
118 void olimex_jtag_blink(void);
119 void turtle_jtag_blink(void);
121 ft2232_layout_t ft2232_layouts
[] =
123 {"usbjtag", usbjtag_init
, usbjtag_reset
, NULL
},
124 {"jtagkey", jtagkey_init
, jtagkey_reset
, NULL
},
125 {"jtagkey_prototype_v1", jtagkey_init
, jtagkey_reset
, NULL
},
126 {"oocdlink", jtagkey_init
, jtagkey_reset
, NULL
},
127 {"signalyzer", usbjtag_init
, usbjtag_reset
, NULL
},
128 {"evb_lm3s811", usbjtag_init
, usbjtag_reset
, NULL
},
129 {"olimex-jtag", olimex_jtag_init
, olimex_jtag_reset
, olimex_jtag_blink
},
130 {"flyswatter", flyswatter_init
, flyswatter_reset
, NULL
},
131 {"turtelizer2", turtle_init
, turtle_reset
, turtle_jtag_blink
},
132 {"comstick", comstick_init
, comstick_reset
, NULL
},
133 {"stm32stick", stm32stick_init
, stm32stick_reset
, NULL
},
134 {"axm0432_jtag", axm0432_jtag_init
, axm0432_jtag_reset
, NULL
},
138 static u8 nTRST
, nTRSTnOE
, nSRST
, nSRSTnOE
;
140 static ft2232_layout_t
*layout
;
141 static u8 low_output
= 0x0;
142 static u8 low_direction
= 0x0;
143 static u8 high_output
= 0x0;
144 static u8 high_direction
= 0x0;
146 #if BUILD_FT2232_FTD2XX == 1
147 static FT_HANDLE ftdih
= NULL
;
148 #elif BUILD_FT2232_LIBFTDI == 1
149 static struct ftdi_context ftdic
;
152 static u8
*ft2232_buffer
= NULL
;
153 static int ft2232_buffer_size
= 0;
154 static int ft2232_read_pointer
= 0;
155 static int ft2232_expect_read
= 0;
156 #define FT2232_BUFFER_SIZE 131072
157 #define BUFFER_ADD ft2232_buffer[ft2232_buffer_size++]
158 #define BUFFER_READ ft2232_buffer[ft2232_read_pointer++]
160 jtag_interface_t ft2232_interface
=
163 .execute_queue
= ft2232_execute_queue
,
164 .speed
= ft2232_speed
,
165 .speed_div
= ft2232_speed_div
,
167 .register_commands
= ft2232_register_commands
,
172 int ft2232_write(u8
*buf
, int size
, u32
* bytes_written
)
174 #if BUILD_FT2232_FTD2XX == 1
176 DWORD dw_bytes_written
;
177 if ((status
= FT_Write(ftdih
, buf
, size
, &dw_bytes_written
)) != FT_OK
)
179 *bytes_written
= dw_bytes_written
;
180 LOG_ERROR("FT_Write returned: %lu", status
);
181 return ERROR_JTAG_DEVICE_ERROR
;
185 *bytes_written
= dw_bytes_written
;
188 #elif BUILD_FT2232_LIBFTDI == 1
190 if ((retval
= ftdi_write_data(&ftdic
, buf
, size
)) < 0)
193 LOG_ERROR("ftdi_write_data: %s", ftdi_get_error_string(&ftdic
));
194 return ERROR_JTAG_DEVICE_ERROR
;
198 *bytes_written
= retval
;
204 int ft2232_read(u8
* buf
, int size
, u32
* bytes_read
)
206 #if BUILD_FT2232_FTD2XX == 1
212 while ((*bytes_read
< size
) && timeout
--)
214 if ((status
= FT_Read(ftdih
, buf
+ *bytes_read
, size
-
215 *bytes_read
, &dw_bytes_read
)) != FT_OK
)
218 LOG_ERROR("FT_Read returned: %lu", status
);
219 return ERROR_JTAG_DEVICE_ERROR
;
221 *bytes_read
+= dw_bytes_read
;
223 #elif BUILD_FT2232_LIBFTDI == 1
228 while ((*bytes_read
< size
) && timeout
--)
230 if ((retval
= ftdi_read_data(&ftdic
, buf
+ *bytes_read
, size
- *bytes_read
)) < 0)
233 LOG_ERROR("ftdi_read_data: %s", ftdi_get_error_string(&ftdic
));
234 return ERROR_JTAG_DEVICE_ERROR
;
236 *bytes_read
+= retval
;
240 if (*bytes_read
< size
)
242 LOG_ERROR("couldn't read the requested number of bytes from FT2232 device (%i < %i)", *bytes_read
, size
);
243 return ERROR_JTAG_DEVICE_ERROR
;
249 int ft2232_speed(int speed
)
255 buf
[0] = 0x86; /* command "set divisor" */
256 buf
[1] = speed
& 0xff; /* valueL (0=6MHz, 1=3MHz, 2=2.0MHz, ...*/
257 buf
[2] = (speed
>> 8) & 0xff; /* valueH */
259 LOG_DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
260 if (((retval
= ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
262 LOG_ERROR("couldn't set FT2232 TCK speed");
269 int ft2232_speed_div(int speed
, int *khz
)
271 /* Take a look in the FT2232 manual,
272 * AN2232C-01 Command Processor for
273 * MPSSE and MCU Host Bus. Chapter 3.8 */
275 *khz
= 6000 / (1+speed
);
280 int ft2232_khz(int khz
, int *jtag_speed
)
284 LOG_ERROR("RCLK not supported");
287 /* Take a look in the FT2232 manual,
288 * AN2232C-01 Command Processor for
289 * MPSSE and MCU Host Bus. Chapter 3.8
291 * We will calc here with a multiplier
292 * of 10 for better rounding later. */
294 /* Calc speed, (6000 / khz) - 1 */
295 /* Use 65000 for better rounding */
296 *jtag_speed
= (60000 / khz
) - 10;
298 /* Add 0.9 for rounding */
301 /* Calc real speed */
302 *jtag_speed
= *jtag_speed
/ 10;
304 /* Check if speed is greater than 0 */
310 /* Check max value */
311 if (*jtag_speed
> 0xFFFF)
313 *jtag_speed
= 0xFFFF;
319 int ft2232_register_commands(struct command_context_s
*cmd_ctx
)
321 register_command(cmd_ctx
, NULL
, "ft2232_device_desc", ft2232_handle_device_desc_command
,
322 COMMAND_CONFIG
, "the USB device description of the FTDI FT2232 device");
323 register_command(cmd_ctx
, NULL
, "ft2232_serial", ft2232_handle_serial_command
,
324 COMMAND_CONFIG
, "the serial number of the FTDI FT2232 device");
325 register_command(cmd_ctx
, NULL
, "ft2232_layout", ft2232_handle_layout_command
,
326 COMMAND_CONFIG
, "the layout of the FT2232 GPIO signals used to control output-enables and reset signals");
327 register_command(cmd_ctx
, NULL
, "ft2232_vid_pid", ft2232_handle_vid_pid_command
,
328 COMMAND_CONFIG
, "the vendor ID and product ID of the FTDI FT2232 device");
329 register_command(cmd_ctx
, NULL
, "ft2232_latency", ft2232_handle_latency_command
,
330 COMMAND_CONFIG
, "set the FT2232 latency timer to a new value");
334 void ft2232_end_state(enum tap_state state
)
336 if (tap_move_map
[state
] != -1)
340 LOG_ERROR("BUG: %i is not a valid end state", state
);
345 void ft2232_read_scan(enum scan_type type
, u8
* buffer
, int scan_size
)
347 int num_bytes
= ((scan_size
+ 7) / 8);
348 int bits_left
= scan_size
;
351 while(num_bytes
-- > 1)
353 buffer
[cur_byte
] = BUFFER_READ
;
358 buffer
[cur_byte
] = 0x0;
362 buffer
[cur_byte
] = BUFFER_READ
>> 1;
365 buffer
[cur_byte
] = (buffer
[cur_byte
] | ((BUFFER_READ
& 0x02) << 6)) >> (8 - bits_left
);
369 void ft2232_debug_dump_buffer(void)
375 for (i
= 0; i
< ft2232_buffer_size
; i
++)
377 line_p
+= snprintf(line_p
, 256 - (line_p
- line
), "%2.2x ", ft2232_buffer
[i
]);
380 LOG_DEBUG("%s", line
);
386 LOG_DEBUG("%s", line
);
389 int ft2232_send_and_recv(jtag_command_t
*first
, jtag_command_t
*last
)
399 #ifdef _DEBUG_USB_IO_
400 struct timeval start
, inter
, inter2
, end
;
401 struct timeval d_inter
, d_inter2
, d_end
;
404 #ifdef _DEBUG_USB_COMMS_
405 LOG_DEBUG("write buffer (size %i):", ft2232_buffer_size
);
406 ft2232_debug_dump_buffer();
409 #ifdef _DEBUG_USB_IO_
410 gettimeofday(&start
, NULL
);
413 if ((retval
= ft2232_write(ft2232_buffer
, ft2232_buffer_size
, &bytes_written
)) != ERROR_OK
)
415 LOG_ERROR("couldn't write MPSSE commands to FT2232");
419 #ifdef _DEBUG_USB_IO_
420 gettimeofday(&inter
, NULL
);
423 if (ft2232_expect_read
)
426 ft2232_buffer_size
= 0;
428 #ifdef _DEBUG_USB_IO_
429 gettimeofday(&inter2
, NULL
);
432 if ((retval
= ft2232_read(ft2232_buffer
, ft2232_expect_read
, &bytes_read
)) != ERROR_OK
)
434 LOG_ERROR("couldn't read from FT2232");
438 #ifdef _DEBUG_USB_IO_
439 gettimeofday(&end
, NULL
);
441 timeval_subtract(&d_inter
, &inter
, &start
);
442 timeval_subtract(&d_inter2
, &inter2
, &start
);
443 timeval_subtract(&d_end
, &end
, &start
);
445 LOG_INFO("inter: %i.%06i, inter2: %i.%06i end: %i.%06i", d_inter
.tv_sec
, d_inter
.tv_usec
, d_inter2
.tv_sec
, d_inter2
.tv_usec
, d_end
.tv_sec
, d_end
.tv_usec
);
449 ft2232_buffer_size
= bytes_read
;
451 if (ft2232_expect_read
!= ft2232_buffer_size
)
453 LOG_ERROR("ft2232_expect_read (%i) != ft2232_buffer_size (%i) (%i retries)", ft2232_expect_read
, ft2232_buffer_size
, 100 - timeout
);
454 ft2232_debug_dump_buffer();
459 #ifdef _DEBUG_USB_COMMS_
460 LOG_DEBUG("read buffer (%i retries): %i bytes", 100 - timeout
, ft2232_buffer_size
);
461 ft2232_debug_dump_buffer();
465 ft2232_expect_read
= 0;
466 ft2232_read_pointer
= 0;
468 /* return ERROR_OK, unless a jtag_read_buffer returns a failed check
469 * that wasn't handled by a caller-provided error handler
479 type
= jtag_scan_type(cmd
->cmd
.scan
);
480 if (type
!= SCAN_OUT
)
482 scan_size
= jtag_scan_size(cmd
->cmd
.scan
);
483 buffer
= calloc(CEIL(scan_size
, 8), 1);
484 ft2232_read_scan(type
, buffer
, scan_size
);
485 if (jtag_read_buffer(buffer
, cmd
->cmd
.scan
) != ERROR_OK
)
486 retval
= ERROR_JTAG_QUEUE_FAILED
;
496 ft2232_buffer_size
= 0;
501 void ft2232_add_pathmove(pathmove_command_t
*cmd
)
503 int num_states
= cmd
->num_states
;
512 int num_states_batch
= num_states
> 7 ? 7 : num_states
;
515 /* command "Clock Data to TMS/CS Pin (no Read)" */
517 /* number of states remaining */
518 BUFFER_ADD
= num_states_batch
- 1;
520 while (num_states_batch
--)
522 if (tap_transitions
[cur_state
].low
== cmd
->path
[state_count
])
523 buf_set_u32(&tms_byte
, bit_count
++, 1, 0x0);
524 else if (tap_transitions
[cur_state
].high
== cmd
->path
[state_count
])
525 buf_set_u32(&tms_byte
, bit_count
++, 1, 0x1);
528 LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", jtag_state_name(cur_state
), jtag_state_name(cmd
->path
[state_count
]));
532 cur_state
= cmd
->path
[state_count
];
537 BUFFER_ADD
= tms_byte
;
540 end_state
= cur_state
;
543 void ft2232_add_scan(int ir_scan
, enum scan_type type
, u8
*buffer
, int scan_size
)
545 int num_bytes
= (scan_size
+ 7) / 8;
546 int bits_left
= scan_size
;
550 if (!((!ir_scan
&& (cur_state
== TAP_DRSHIFT
)) || (ir_scan
&& (cur_state
== TAP_IRSHIFT
))))
552 /* command "Clock Data to TMS/CS Pin (no Read)" */
559 BUFFER_ADD
= TAP_MOVE(cur_state
, TAP_IRSHIFT
);
560 cur_state
= TAP_IRSHIFT
;
564 BUFFER_ADD
= TAP_MOVE(cur_state
, TAP_DRSHIFT
);
565 cur_state
= TAP_DRSHIFT
;
567 /* LOG_DEBUG("added TMS scan (no read)"); */
570 /* add command for complete bytes */
571 while (num_bytes
> 1)
576 /* Clock Data Bytes In and Out LSB First */
578 /* LOG_DEBUG("added TDI bytes (io %i)", num_bytes); */
580 else if (type
== SCAN_OUT
)
582 /* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */
584 /* LOG_DEBUG("added TDI bytes (o)"); */
586 else if (type
== SCAN_IN
)
588 /* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */
590 /* LOG_DEBUG("added TDI bytes (i %i)", num_bytes); */
592 thisrun_bytes
= (num_bytes
> 65537) ? 65536 : (num_bytes
- 1);
593 num_bytes
-= thisrun_bytes
;
594 BUFFER_ADD
= (thisrun_bytes
- 1) & 0xff;
595 BUFFER_ADD
= ((thisrun_bytes
- 1) >> 8) & 0xff;
598 /* add complete bytes */
599 while(thisrun_bytes
-- > 0)
601 BUFFER_ADD
= buffer
[cur_byte
];
606 else /* (type == SCAN_IN) */
608 bits_left
-= 8 * (thisrun_bytes
);
612 /* the most signifcant bit is scanned during TAP movement */
614 last_bit
= (buffer
[cur_byte
] >> (bits_left
- 1)) & 0x1;
618 /* process remaining bits but the last one */
623 /* Clock Data Bits In and Out LSB First */
625 /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
627 else if (type
== SCAN_OUT
)
629 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
631 /* LOG_DEBUG("added TDI bits (o)"); */
633 else if (type
== SCAN_IN
)
635 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
637 /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
639 BUFFER_ADD
= bits_left
- 2;
641 BUFFER_ADD
= buffer
[cur_byte
];
644 if ((ir_scan
&& (end_state
== TAP_IRSHIFT
)) ||
645 (!ir_scan
&& (end_state
== TAP_DRSHIFT
)))
649 /* Clock Data Bits In and Out LSB First */
651 /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
653 else if (type
== SCAN_OUT
)
655 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
657 /* LOG_DEBUG("added TDI bits (o)"); */
659 else if (type
== SCAN_IN
)
661 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
663 /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
666 BUFFER_ADD
= last_bit
;
670 /* move from Shift-IR/DR to end state */
671 if (type
!= SCAN_OUT
)
673 /* Clock Data to TMS/CS Pin with Read */
675 /* LOG_DEBUG("added TMS scan (read)"); */
679 /* Clock Data to TMS/CS Pin (no Read) */
681 /* LOG_DEBUG("added TMS scan (no read)"); */
684 BUFFER_ADD
= TAP_MOVE(cur_state
, end_state
) | (last_bit
<< 7);
685 cur_state
= end_state
;
689 int ft2232_large_scan(scan_command_t
*cmd
, enum scan_type type
, u8
*buffer
, int scan_size
)
691 int num_bytes
= (scan_size
+ 7) / 8;
692 int bits_left
= scan_size
;
695 u8
*receive_buffer
= malloc(CEIL(scan_size
, 8));
696 u8
*receive_pointer
= receive_buffer
;
700 int thisrun_read
= 0;
704 LOG_ERROR("BUG: large IR scans are not supported");
708 if (cur_state
!= TAP_DRSHIFT
)
710 /* command "Clock Data to TMS/CS Pin (no Read)" */
715 BUFFER_ADD
= TAP_MOVE(cur_state
, TAP_DRSHIFT
);
716 cur_state
= TAP_DRSHIFT
;
719 if ((retval
= ft2232_write(ft2232_buffer
, ft2232_buffer_size
, &bytes_written
)) != ERROR_OK
)
721 LOG_ERROR("couldn't write MPSSE commands to FT2232");
724 LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size
, bytes_written
);
725 ft2232_buffer_size
= 0;
727 /* add command for complete bytes */
728 while (num_bytes
> 1)
734 /* Clock Data Bytes In and Out LSB First */
736 /* LOG_DEBUG("added TDI bytes (io %i)", num_bytes); */
738 else if (type
== SCAN_OUT
)
740 /* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */
742 /* LOG_DEBUG("added TDI bytes (o)"); */
744 else if (type
== SCAN_IN
)
746 /* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */
748 /* LOG_DEBUG("added TDI bytes (i %i)", num_bytes); */
750 thisrun_bytes
= (num_bytes
> 65537) ? 65536 : (num_bytes
- 1);
751 thisrun_read
= thisrun_bytes
;
752 num_bytes
-= thisrun_bytes
;
753 BUFFER_ADD
= (thisrun_bytes
- 1) & 0xff;
754 BUFFER_ADD
= ((thisrun_bytes
- 1) >> 8) & 0xff;
757 /* add complete bytes */
758 while(thisrun_bytes
-- > 0)
760 BUFFER_ADD
= buffer
[cur_byte
];
765 else /* (type == SCAN_IN) */
767 bits_left
-= 8 * (thisrun_bytes
);
770 if ((retval
= ft2232_write(ft2232_buffer
, ft2232_buffer_size
, &bytes_written
)) != ERROR_OK
)
772 LOG_ERROR("couldn't write MPSSE commands to FT2232");
775 LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size
, bytes_written
);
776 ft2232_buffer_size
= 0;
778 if (type
!= SCAN_OUT
)
780 if ((retval
= ft2232_read(receive_pointer
, thisrun_read
, &bytes_read
)) != ERROR_OK
)
782 LOG_ERROR("couldn't read from FT2232");
785 LOG_DEBUG("thisrun_read: %i, bytes_read: %i", thisrun_read
, bytes_read
);
786 receive_pointer
+= bytes_read
;
792 /* the most signifcant bit is scanned during TAP movement */
794 last_bit
= (buffer
[cur_byte
] >> (bits_left
- 1)) & 0x1;
798 /* process remaining bits but the last one */
803 /* Clock Data Bits In and Out LSB First */
805 /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
807 else if (type
== SCAN_OUT
)
809 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
811 /* LOG_DEBUG("added TDI bits (o)"); */
813 else if (type
== SCAN_IN
)
815 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
817 /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
819 BUFFER_ADD
= bits_left
- 2;
821 BUFFER_ADD
= buffer
[cur_byte
];
823 if (type
!= SCAN_OUT
)
827 if (end_state
== TAP_DRSHIFT
)
831 /* Clock Data Bits In and Out LSB First */
833 /* LOG_DEBUG("added TDI bits (io) %i", bits_left - 1); */
835 else if (type
== SCAN_OUT
)
837 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
839 /* LOG_DEBUG("added TDI bits (o)"); */
841 else if (type
== SCAN_IN
)
843 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
845 /* LOG_DEBUG("added TDI bits (i %i)", bits_left - 1); */
848 BUFFER_ADD
= last_bit
;
852 /* move from Shift-IR/DR to end state */
853 if (type
!= SCAN_OUT
)
855 /* Clock Data to TMS/CS Pin with Read */
857 /* LOG_DEBUG("added TMS scan (read)"); */
861 /* Clock Data to TMS/CS Pin (no Read) */
863 /* LOG_DEBUG("added TMS scan (no read)"); */
866 BUFFER_ADD
= TAP_MOVE(cur_state
, end_state
) | (last_bit
<< 7);
867 cur_state
= end_state
;
870 if (type
!= SCAN_OUT
)
873 if ((retval
= ft2232_write(ft2232_buffer
, ft2232_buffer_size
, &bytes_written
)) != ERROR_OK
)
875 LOG_ERROR("couldn't write MPSSE commands to FT2232");
878 LOG_DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size
, bytes_written
);
879 ft2232_buffer_size
= 0;
881 if (type
!= SCAN_OUT
)
883 if ((retval
= ft2232_read(receive_pointer
, thisrun_read
, &bytes_read
)) != ERROR_OK
)
885 LOG_ERROR("couldn't read from FT2232");
888 LOG_DEBUG("thisrun_read: %i, bytes_read: %i", thisrun_read
, bytes_read
);
889 receive_pointer
+= bytes_read
;
895 int ft2232_predict_scan_out(int scan_size
, enum scan_type type
)
897 int predicted_size
= 3;
898 int num_bytes
= (scan_size
- 1) / 8;
900 if (cur_state
!= TAP_DRSHIFT
)
903 if (type
== SCAN_IN
) /* only from device to host */
906 predicted_size
+= (CEIL(num_bytes
, 65536)) * 3;
907 /* remaining bits - 1 (up to 7) */
908 predicted_size
+= ((scan_size
- 1) % 8) ? 2 : 0;
910 else /* host to device, or bidirectional */
913 predicted_size
+= num_bytes
+ (CEIL(num_bytes
, 65536)) * 3;
914 /* remaining bits -1 (up to 7) */
915 predicted_size
+= ((scan_size
- 1) % 8) ? 3 : 0;
918 return predicted_size
;
921 int ft2232_predict_scan_in(int scan_size
, enum scan_type type
)
923 int predicted_size
= 0;
925 if (type
!= SCAN_OUT
)
928 predicted_size
+= (CEIL(scan_size
, 8) > 1) ? (CEIL(scan_size
, 8) - 1) : 0;
929 /* remaining bits - 1 */
930 predicted_size
+= ((scan_size
- 1) % 8) ? 1 : 0;
931 /* last bit (from TMS scan) */
935 /* LOG_DEBUG("scan_size: %i, predicted_size: %i", scan_size, predicted_size); */
937 return predicted_size
;
940 void usbjtag_reset(int trst
, int srst
)
944 if (jtag_reset_config
& RESET_TRST_OPEN_DRAIN
)
945 low_direction
|= nTRSTnOE
; /* switch to output pin (output is low) */
947 low_output
&= ~nTRST
; /* switch output low */
951 if (jtag_reset_config
& RESET_TRST_OPEN_DRAIN
)
952 low_direction
&= ~nTRSTnOE
; /* switch to input pin (high-Z + internal and external pullup) */
954 low_output
|= nTRST
; /* switch output high */
959 if (jtag_reset_config
& RESET_SRST_PUSH_PULL
)
960 low_output
&= ~nSRST
; /* switch output low */
962 low_direction
|= nSRSTnOE
; /* switch to output pin (output is low) */
966 if (jtag_reset_config
& RESET_SRST_PUSH_PULL
)
967 low_output
|= nSRST
; /* switch output high */
969 low_direction
&= ~nSRSTnOE
; /* switch to input pin (high-Z) */
972 /* command "set data bits low byte" */
974 BUFFER_ADD
= low_output
;
975 BUFFER_ADD
= low_direction
;
979 void jtagkey_reset(int trst
, int srst
)
983 if (jtag_reset_config
& RESET_TRST_OPEN_DRAIN
)
984 high_output
&= ~nTRSTnOE
;
986 high_output
&= ~nTRST
;
990 if (jtag_reset_config
& RESET_TRST_OPEN_DRAIN
)
991 high_output
|= nTRSTnOE
;
993 high_output
|= nTRST
;
998 if (jtag_reset_config
& RESET_SRST_PUSH_PULL
)
999 high_output
&= ~nSRST
;
1001 high_output
&= ~nSRSTnOE
;
1005 if (jtag_reset_config
& RESET_SRST_PUSH_PULL
)
1006 high_output
|= nSRST
;
1008 high_output
|= nSRSTnOE
;
1011 /* command "set data bits high byte" */
1013 BUFFER_ADD
= high_output
;
1014 BUFFER_ADD
= high_direction
;
1015 LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst
, srst
, high_output
, high_direction
);
1018 void olimex_jtag_reset(int trst
, int srst
)
1022 if (jtag_reset_config
& RESET_TRST_OPEN_DRAIN
)
1023 high_output
&= ~nTRSTnOE
;
1025 high_output
&= ~nTRST
;
1029 if (jtag_reset_config
& RESET_TRST_OPEN_DRAIN
)
1030 high_output
|= nTRSTnOE
;
1032 high_output
|= nTRST
;
1037 high_output
|= nSRST
;
1041 high_output
&= ~nSRST
;
1044 /* command "set data bits high byte" */
1046 BUFFER_ADD
= high_output
;
1047 BUFFER_ADD
= high_direction
;
1048 LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst
, srst
, high_output
, high_direction
);
1051 void axm0432_jtag_reset(int trst
, int srst
)
1055 cur_state
= TAP_RESET
;
1056 high_output
&= ~nTRST
;
1060 high_output
|= nTRST
;
1065 high_output
&= ~nSRST
;
1069 high_output
|= nSRST
;
1072 /* command "set data bits low byte" */
1074 BUFFER_ADD
= high_output
;
1075 BUFFER_ADD
= high_direction
;
1076 LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst
, srst
, high_output
, high_direction
);
1079 void flyswatter_reset(int trst
, int srst
)
1083 low_output
&= ~nTRST
;
1087 low_output
|= nTRST
;
1092 low_output
|= nSRST
;
1096 low_output
&= ~nSRST
;
1099 /* command "set data bits low byte" */
1101 BUFFER_ADD
= low_output
;
1102 BUFFER_ADD
= low_direction
;
1103 LOG_DEBUG("trst: %i, srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", trst
, srst
, low_output
, low_direction
);
1106 void turtle_reset(int trst
, int srst
)
1112 low_output
|= nSRST
;
1116 low_output
&= ~nSRST
;
1119 /* command "set data bits low byte" */
1121 BUFFER_ADD
= low_output
;
1122 BUFFER_ADD
= low_direction
;
1123 LOG_DEBUG("srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", srst
, low_output
, low_direction
);
1126 void comstick_reset(int trst
, int srst
)
1130 high_output
&= ~nTRST
;
1134 high_output
|= nTRST
;
1139 high_output
&= ~nSRST
;
1143 high_output
|= nSRST
;
1146 /* command "set data bits high byte" */
1148 BUFFER_ADD
= high_output
;
1149 BUFFER_ADD
= high_direction
;
1150 LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst
, srst
, high_output
, high_direction
);
1153 void stm32stick_reset(int trst
, int srst
)
1157 high_output
&= ~nTRST
;
1161 high_output
|= nTRST
;
1166 low_output
&= ~nSRST
;
1170 low_output
|= nSRST
;
1173 /* command "set data bits low byte" */
1175 BUFFER_ADD
= low_output
;
1176 BUFFER_ADD
= low_direction
;
1178 /* command "set data bits high byte" */
1180 BUFFER_ADD
= high_output
;
1181 BUFFER_ADD
= high_direction
;
1182 LOG_DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst
, srst
, high_output
, high_direction
);
1185 int ft2232_execute_queue()
1187 jtag_command_t
*cmd
= jtag_command_queue
; /* currently processed command */
1188 jtag_command_t
*first_unsent
= cmd
; /* next command that has to be sent */
1190 int scan_size
; /* size of IR or DR scan */
1191 enum scan_type type
;
1193 int predicted_size
= 0;
1194 int require_send
= 0;
1197 /* return ERROR_OK, unless ft2232_send_and_recv reports a failed check
1198 * that wasn't handled by a caller-provided error handler
1202 ft2232_buffer_size
= 0;
1203 ft2232_expect_read
= 0;
1205 /* blink, if the current layout has that feature */
1213 case JTAG_END_STATE
:
1214 if (cmd
->cmd
.end_state
->end_state
!= -1)
1215 ft2232_end_state(cmd
->cmd
.end_state
->end_state
);
1218 /* only send the maximum buffer size that FT2232C can handle */
1220 if (ft2232_buffer_size
+ predicted_size
+ 1 > FT2232_BUFFER_SIZE
)
1222 if (ft2232_send_and_recv(first_unsent
, cmd
) != ERROR_OK
)
1223 retval
= ERROR_JTAG_QUEUE_FAILED
;
1228 if ((cmd
->cmd
.reset
->trst
== 1) || (cmd
->cmd
.reset
->srst
&& (jtag_reset_config
& RESET_SRST_PULLS_TRST
)))
1230 cur_state
= TAP_RESET
;
1232 layout
->reset(cmd
->cmd
.reset
->trst
, cmd
->cmd
.reset
->srst
);
1235 #ifdef _DEBUG_JTAG_IO_
1236 LOG_DEBUG("trst: %i, srst: %i", cmd
->cmd
.reset
->trst
, cmd
->cmd
.reset
->srst
);
1240 /* only send the maximum buffer size that FT2232C can handle */
1242 if (cur_state
!= TAP_IDLE
)
1243 predicted_size
+= 3;
1244 predicted_size
+= 3 * CEIL(cmd
->cmd
.runtest
->num_cycles
, 7);
1245 if ((cmd
->cmd
.runtest
->end_state
!= -1) && (cmd
->cmd
.runtest
->end_state
!= TAP_IDLE
))
1246 predicted_size
+= 3;
1247 if ((cmd
->cmd
.runtest
->end_state
== -1) && (end_state
!= TAP_IDLE
))
1248 predicted_size
+= 3;
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 if (cur_state
!= TAP_IDLE
)
1258 /* command "Clock Data to TMS/CS Pin (no Read)" */
1263 BUFFER_ADD
= TAP_MOVE(cur_state
, TAP_IDLE
);
1264 cur_state
= TAP_IDLE
;
1267 i
= cmd
->cmd
.runtest
->num_cycles
;
1270 /* command "Clock Data to TMS/CS Pin (no Read)" */
1273 BUFFER_ADD
= (i
> 7) ? 6 : (i
- 1);
1276 cur_state
= TAP_IDLE
;
1277 i
-= (i
> 7) ? 7 : i
;
1278 /* LOG_DEBUG("added TMS scan (no read)"); */
1280 if (cmd
->cmd
.runtest
->end_state
!= -1)
1281 ft2232_end_state(cmd
->cmd
.runtest
->end_state
);
1282 if (cur_state
!= end_state
)
1284 /* command "Clock Data to TMS/CS Pin (no Read)" */
1289 BUFFER_ADD
= TAP_MOVE(cur_state
, end_state
);
1290 cur_state
= end_state
;
1291 /* LOG_DEBUG("added TMS scan (no read)"); */
1294 #ifdef _DEBUG_JTAG_IO_
1295 LOG_DEBUG("runtest: %i, end in %i", cmd
->cmd
.runtest
->num_cycles
, end_state
);
1298 case JTAG_STATEMOVE
:
1299 /* only send the maximum buffer size that FT2232C can handle */
1301 if (ft2232_buffer_size
+ predicted_size
+ 1 > FT2232_BUFFER_SIZE
)
1303 if (ft2232_send_and_recv(first_unsent
, cmd
) != ERROR_OK
)
1304 retval
= ERROR_JTAG_QUEUE_FAILED
;
1308 if (cmd
->cmd
.statemove
->end_state
!= -1)
1309 ft2232_end_state(cmd
->cmd
.statemove
->end_state
);
1310 /* command "Clock Data to TMS/CS Pin (no Read)" */
1315 BUFFER_ADD
= TAP_MOVE(cur_state
, end_state
);
1316 /* LOG_DEBUG("added TMS scan (no read)"); */
1317 cur_state
= end_state
;
1319 #ifdef _DEBUG_JTAG_IO_
1320 LOG_DEBUG("statemove: %i", end_state
);
1324 /* only send the maximum buffer size that FT2232C can handle */
1325 predicted_size
= 3 * CEIL(cmd
->cmd
.pathmove
->num_states
, 7);
1326 if (ft2232_buffer_size
+ predicted_size
+ 1 > FT2232_BUFFER_SIZE
)
1328 if (ft2232_send_and_recv(first_unsent
, cmd
) != ERROR_OK
)
1329 retval
= ERROR_JTAG_QUEUE_FAILED
;
1333 ft2232_add_pathmove(cmd
->cmd
.pathmove
);
1335 #ifdef _DEBUG_JTAG_IO_
1336 LOG_DEBUG("pathmove: %i states, end in %i", cmd
->cmd
.pathmove
->num_states
, cmd
->cmd
.pathmove
->path
[cmd
->cmd
.pathmove
->num_states
- 1]);
1340 scan_size
= jtag_build_buffer(cmd
->cmd
.scan
, &buffer
);
1341 type
= jtag_scan_type(cmd
->cmd
.scan
);
1342 predicted_size
= ft2232_predict_scan_out(scan_size
, type
);
1343 if ((predicted_size
+ 1) > FT2232_BUFFER_SIZE
)
1345 LOG_DEBUG("oversized ft2232 scan (predicted_size > FT2232_BUFFER_SIZE)");
1346 /* unsent commands before this */
1347 if (first_unsent
!= cmd
)
1348 if (ft2232_send_and_recv(first_unsent
, cmd
) != ERROR_OK
)
1349 retval
= ERROR_JTAG_QUEUE_FAILED
;
1351 /* current command */
1352 if (cmd
->cmd
.scan
->end_state
!= -1)
1353 ft2232_end_state(cmd
->cmd
.scan
->end_state
);
1354 ft2232_large_scan(cmd
->cmd
.scan
, type
, buffer
, scan_size
);
1356 first_unsent
= cmd
->next
;
1361 else if (ft2232_buffer_size
+ predicted_size
+ 1 > FT2232_BUFFER_SIZE
)
1363 LOG_DEBUG("ft2232 buffer size reached, sending queued commands (first_unsent: %p, cmd: %p)", first_unsent
, cmd
);
1364 if (ft2232_send_and_recv(first_unsent
, cmd
) != ERROR_OK
)
1365 retval
= ERROR_JTAG_QUEUE_FAILED
;
1369 ft2232_expect_read
+= ft2232_predict_scan_in(scan_size
, type
);
1370 /* LOG_DEBUG("new read size: %i", ft2232_expect_read); */
1371 if (cmd
->cmd
.scan
->end_state
!= -1)
1372 ft2232_end_state(cmd
->cmd
.scan
->end_state
);
1373 ft2232_add_scan(cmd
->cmd
.scan
->ir_scan
, type
, buffer
, scan_size
);
1377 #ifdef _DEBUG_JTAG_IO_
1378 LOG_DEBUG("%s scan, %i bit, end in %i", (cmd
->cmd
.scan
->ir_scan
) ? "IR" : "DR", scan_size
, end_state
);
1382 if (ft2232_send_and_recv(first_unsent
, cmd
) != ERROR_OK
)
1383 retval
= ERROR_JTAG_QUEUE_FAILED
;
1384 first_unsent
= cmd
->next
;
1385 jtag_sleep(cmd
->cmd
.sleep
->us
);
1386 #ifdef _DEBUG_JTAG_IO_
1387 LOG_DEBUG("sleep %i usec", cmd
->cmd
.sleep
->us
);
1391 LOG_ERROR("BUG: unknown JTAG command type encountered");
1397 if (require_send
> 0)
1398 if (ft2232_send_and_recv(first_unsent
, cmd
) != ERROR_OK
)
1399 retval
= ERROR_JTAG_QUEUE_FAILED
;
1404 #if BUILD_FT2232_FTD2XX == 1
1405 static int ft2232_init_ftd2xx(u16 vid
, u16 pid
, int more
, int *try_more
)
1408 DWORD openex_flags
= 0;
1409 char *openex_string
= NULL
;
1412 LOG_DEBUG("'ft2232' interface using FTD2XX with '%s' layout (%4.4x:%4.4x)",ft2232_layout
, vid
, pid
);
1415 /* Add non-standard Vid/Pid to the linux driver */
1416 if ((status
= FT_SetVIDPID(vid
, pid
)) != FT_OK
)
1418 LOG_WARNING("couldn't add %4.4x:%4.4x", vid
, pid
);
1422 if (ft2232_device_desc
&& ft2232_serial
)
1424 LOG_WARNING("can't open by device description and serial number, giving precedence to serial");
1425 ft2232_device_desc
= NULL
;
1428 if (ft2232_device_desc
)
1430 openex_string
= ft2232_device_desc
;
1431 openex_flags
= FT_OPEN_BY_DESCRIPTION
;
1433 else if (ft2232_serial
)
1435 openex_string
= ft2232_serial
;
1436 openex_flags
= FT_OPEN_BY_SERIAL_NUMBER
;
1440 LOG_ERROR("neither device description nor serial number specified");
1441 LOG_ERROR("please add \"ft2232_device_desc <string>\" or \"ft2232_serial <string>\" to your .cfg file");
1443 return ERROR_JTAG_INIT_FAILED
;
1446 if ((status
= FT_OpenEx(openex_string
, openex_flags
, &ftdih
)) != FT_OK
)
1451 LOG_WARNING("unable to open ftdi device (trying more): %lu", status
);
1453 return ERROR_JTAG_INIT_FAILED
;
1455 LOG_ERROR("unable to open ftdi device: %lu", status
);
1456 status
= FT_ListDevices(&num_devices
, NULL
, FT_LIST_NUMBER_ONLY
);
1457 if (status
== FT_OK
)
1459 char **desc_array
= malloc(sizeof(char*) * (num_devices
+ 1));
1462 for (i
= 0; i
< num_devices
; i
++)
1463 desc_array
[i
] = malloc(64);
1464 desc_array
[num_devices
] = NULL
;
1466 status
= FT_ListDevices(desc_array
, &num_devices
, FT_LIST_ALL
| openex_flags
);
1468 if (status
== FT_OK
)
1470 LOG_ERROR("ListDevices: %lu\n", num_devices
);
1471 for (i
= 0; i
< num_devices
; i
++)
1472 LOG_ERROR("%i: \"%s\"", i
, desc_array
[i
]);
1475 for (i
= 0; i
< num_devices
; i
++)
1476 free(desc_array
[i
]);
1481 LOG_ERROR("ListDevices: NONE\n");
1483 return ERROR_JTAG_INIT_FAILED
;
1486 if ((status
= FT_SetLatencyTimer(ftdih
, ft2232_latency
)) != FT_OK
)
1488 LOG_ERROR("unable to set latency timer: %lu", status
);
1489 return ERROR_JTAG_INIT_FAILED
;
1492 if ((status
= FT_GetLatencyTimer(ftdih
, &latency_timer
)) != FT_OK
)
1494 LOG_ERROR("unable to get latency timer: %lu", status
);
1495 return ERROR_JTAG_INIT_FAILED
;
1499 LOG_DEBUG("current latency timer: %i", latency_timer
);
1502 if ((status
= FT_SetTimeouts(ftdih
, 5000, 5000)) != FT_OK
)
1504 LOG_ERROR("unable to set timeouts: %lu", status
);
1505 return ERROR_JTAG_INIT_FAILED
;
1508 if ((status
= FT_SetBitMode(ftdih
, 0x0b, 2)) != FT_OK
)
1510 LOG_ERROR("unable to enable bit i/o mode: %lu", status
);
1511 return ERROR_JTAG_INIT_FAILED
;
1517 static int ft2232_purge_ftd2xx(void)
1521 if ((status
= FT_Purge(ftdih
, FT_PURGE_RX
| FT_PURGE_TX
)) != FT_OK
)
1523 LOG_ERROR("error purging ftd2xx device: %lu", status
);
1524 return ERROR_JTAG_INIT_FAILED
;
1529 #endif /* BUILD_FT2232_FTD2XX == 1 */
1531 #if BUILD_FT2232_LIBFTDI == 1
1532 static int ft2232_init_libftdi(u16 vid
, u16 pid
, int more
, int *try_more
)
1536 LOG_DEBUG("'ft2232' interface using libftdi with '%s' layout (%4.4x:%4.4x)",
1537 ft2232_layout
, vid
, pid
);
1539 if (ftdi_init(&ftdic
) < 0)
1540 return ERROR_JTAG_INIT_FAILED
;
1542 /* context, vendor id, product id */
1543 if (ftdi_usb_open_desc(&ftdic
, vid
, pid
, ft2232_device_desc
,
1544 ft2232_serial
) < 0) {
1546 LOG_WARNING("unable to open ftdi device (trying more): %s",
1549 LOG_ERROR("unable to open ftdi device: %s", ftdic
.error_str
);
1551 return ERROR_JTAG_INIT_FAILED
;
1554 if (ftdi_set_interface(&ftdic
, INTERFACE_A
) < 0)
1556 LOG_ERROR("unable to select FT2232 channel A: %s", ftdic
.error_str
);
1557 return ERROR_JTAG_INIT_FAILED
;
1560 if (ftdi_usb_reset(&ftdic
) < 0)
1562 LOG_ERROR("unable to reset ftdi device");
1563 return ERROR_JTAG_INIT_FAILED
;
1566 if (ftdi_set_latency_timer(&ftdic
, ft2232_latency
) < 0)
1568 LOG_ERROR("unable to set latency timer");
1569 return ERROR_JTAG_INIT_FAILED
;
1572 if (ftdi_get_latency_timer(&ftdic
, &latency_timer
) < 0)
1574 LOG_ERROR("unable to get latency timer");
1575 return ERROR_JTAG_INIT_FAILED
;
1579 LOG_DEBUG("current latency timer: %i", latency_timer
);
1582 ftdi_set_bitmode(&ftdic
, 0x0b, 2); /* ctx, JTAG I/O mask */
1587 static int ft2232_purge_libftdi(void)
1589 if (ftdi_usb_purge_buffers(&ftdic
) < 0)
1591 LOG_ERROR("ftdi_purge_buffers: %s", ftdic
.error_str
);
1592 return ERROR_JTAG_INIT_FAILED
;
1597 #endif /* BUILD_FT2232_LIBFTDI == 1 */
1599 int ft2232_init(void)
1604 ft2232_layout_t
*cur_layout
= ft2232_layouts
;
1607 if ((ft2232_layout
== NULL
) || (ft2232_layout
[0] == 0))
1609 ft2232_layout
= "usbjtag";
1610 LOG_WARNING("No ft2232 layout specified, using default 'usbjtag'");
1613 while (cur_layout
->name
)
1615 if (strcmp(cur_layout
->name
, ft2232_layout
) == 0)
1617 layout
= cur_layout
;
1625 LOG_ERROR("No matching layout found for %s", ft2232_layout
);
1626 return ERROR_JTAG_INIT_FAILED
;
1629 for (i
= 0; 1; i
++) {
1631 * "more indicates that there are more IDs to try, so we should
1632 * not print an error for an ID mismatch (but for anything
1635 * try_more indicates that the error code returned indicates an
1636 * ID mismatch (and nothing else) and that we should proceeed
1637 * with the next ID pair.
1639 int more
= ft2232_vid
[i
+1] || ft2232_pid
[i
+1];
1642 #if BUILD_FT2232_FTD2XX == 1
1643 retval
= ft2232_init_ftd2xx(ft2232_vid
[i
], ft2232_pid
[i
],
1645 #elif BUILD_FT2232_LIBFTDI == 1
1646 retval
= ft2232_init_libftdi(ft2232_vid
[i
], ft2232_pid
[i
],
1651 if (!more
|| !try_more
)
1655 ft2232_buffer_size
= 0;
1656 ft2232_buffer
= malloc(FT2232_BUFFER_SIZE
);
1658 if (layout
->init() != ERROR_OK
)
1659 return ERROR_JTAG_INIT_FAILED
;
1661 ft2232_speed(jtag_speed
);
1663 buf
[0] = 0x85; /* Disconnect TDI/DO to TDO/DI for Loopback */
1664 if (((retval
= ft2232_write(buf
, 1, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 1))
1666 LOG_ERROR("couldn't write to FT2232 to disable loopback");
1667 return ERROR_JTAG_INIT_FAILED
;
1670 #if BUILD_FT2232_FTD2XX == 1
1671 return ft2232_purge_ftd2xx();
1672 #elif BUILD_FT2232_LIBFTDI == 1
1673 return ft2232_purge_libftdi();
1679 int usbjtag_init(void)
1685 low_direction
= 0x0b;
1687 if (strcmp(ft2232_layout
, "usbjtag") == 0)
1694 else if (strcmp(ft2232_layout
, "signalyzer") == 0)
1701 else if (strcmp(ft2232_layout
, "evb_lm3s811") == 0)
1708 low_direction
= 0x8b;
1712 LOG_ERROR("BUG: usbjtag_init called for unknown layout '%s'", ft2232_layout
);
1713 return ERROR_JTAG_INIT_FAILED
;
1716 if (jtag_reset_config
& RESET_TRST_OPEN_DRAIN
)
1718 low_direction
&= ~nTRSTnOE
; /* nTRST input */
1719 low_output
&= ~nTRST
; /* nTRST = 0 */
1723 low_direction
|= nTRSTnOE
; /* nTRST output */
1724 low_output
|= nTRST
; /* nTRST = 1 */
1727 if (jtag_reset_config
& RESET_SRST_PUSH_PULL
)
1729 low_direction
|= nSRSTnOE
; /* nSRST output */
1730 low_output
|= nSRST
; /* nSRST = 1 */
1734 low_direction
&= ~nSRSTnOE
; /* nSRST input */
1735 low_output
&= ~nSRST
; /* nSRST = 0 */
1738 /* initialize low byte for jtag */
1739 buf
[0] = 0x80; /* command "set data bits low byte" */
1740 buf
[1] = low_output
; /* value (TMS=1,TCK=0, TDI=0, xRST high) */
1741 buf
[2] = low_direction
; /* dir (output=1), TCK/TDI/TMS=out, TDO=in */
1742 LOG_DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
1744 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
1746 LOG_ERROR("couldn't initialize FT2232 with 'USBJTAG' layout");
1747 return ERROR_JTAG_INIT_FAILED
;
1753 int axm0432_jtag_init(void)
1759 low_direction
= 0x2b;
1761 /* initialize low byte for jtag */
1762 buf
[0] = 0x80; /* command "set data bits low byte" */
1763 buf
[1] = low_output
; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
1764 buf
[2] = low_direction
; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
1765 LOG_DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
1767 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
1769 LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
1770 return ERROR_JTAG_INIT_FAILED
;
1773 if (strcmp(layout
->name
, "axm0432_jtag") == 0)
1776 nTRSTnOE
= 0x0; /* No output enable for TRST*/
1778 nSRSTnOE
= 0x0; /* No output enable for SRST*/
1782 LOG_ERROR("BUG: axm0432_jtag_init called for non axm0432 layout");
1787 high_direction
= 0x0c;
1789 if (jtag_reset_config
& RESET_TRST_OPEN_DRAIN
)
1791 LOG_ERROR("can't set nTRSTOE to push-pull on the Dicarlo jtag");
1795 high_output
|= nTRST
;
1798 if (jtag_reset_config
& RESET_SRST_PUSH_PULL
)
1800 LOG_ERROR("can't set nSRST to push-pull on the Dicarlo jtag");
1804 high_output
|= nSRST
;
1807 /* initialize high port */
1808 buf
[0] = 0x82; /* command "set data bits high byte" */
1809 buf
[1] = high_output
; /* value */
1810 buf
[2] = high_direction
; /* all outputs (xRST and xRSTnOE) */
1811 LOG_DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
1813 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
1815 LOG_ERROR("couldn't initialize FT2232 with 'Dicarlo' layout");
1816 return ERROR_JTAG_INIT_FAILED
;
1822 int jtagkey_init(void)
1828 low_direction
= 0x1b;
1830 /* initialize low byte for jtag */
1831 buf
[0] = 0x80; /* command "set data bits low byte" */
1832 buf
[1] = low_output
; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
1833 buf
[2] = low_direction
; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
1834 LOG_DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
1836 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
1838 LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
1839 return ERROR_JTAG_INIT_FAILED
;
1842 if (strcmp(layout
->name
, "jtagkey") == 0)
1849 else if ((strcmp(layout
->name
, "jtagkey_prototype_v1") == 0) ||
1850 (strcmp(layout
->name
, "oocdlink") == 0))
1859 LOG_ERROR("BUG: jtagkey_init called for non jtagkey layout");
1864 high_direction
= 0x0f;
1866 if (jtag_reset_config
& RESET_TRST_OPEN_DRAIN
)
1868 high_output
|= nTRSTnOE
;
1869 high_output
&= ~nTRST
;
1873 high_output
&= ~nTRSTnOE
;
1874 high_output
|= nTRST
;
1877 if (jtag_reset_config
& RESET_SRST_PUSH_PULL
)
1879 high_output
&= ~nSRSTnOE
;
1880 high_output
|= nSRST
;
1884 high_output
|= nSRSTnOE
;
1885 high_output
&= ~nSRST
;
1888 /* initialize high port */
1889 buf
[0] = 0x82; /* command "set data bits high byte" */
1890 buf
[1] = high_output
; /* value */
1891 buf
[2] = high_direction
; /* all outputs (xRST and xRSTnOE) */
1892 LOG_DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
1894 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
1896 LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
1897 return ERROR_JTAG_INIT_FAILED
;
1903 int olimex_jtag_init(void)
1909 low_direction
= 0x1b;
1911 /* initialize low byte for jtag */
1912 buf
[0] = 0x80; /* command "set data bits low byte" */
1913 buf
[1] = low_output
; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
1914 buf
[2] = low_direction
; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
1915 LOG_DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
1917 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
1919 LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
1920 return ERROR_JTAG_INIT_FAILED
;
1926 nSRSTnOE
= 0x00; /* no output enable for nSRST */
1929 high_direction
= 0x0f;
1931 if (jtag_reset_config
& RESET_TRST_OPEN_DRAIN
)
1933 high_output
|= nTRSTnOE
;
1934 high_output
&= ~nTRST
;
1938 high_output
&= ~nTRSTnOE
;
1939 high_output
|= nTRST
;
1942 if (jtag_reset_config
& RESET_SRST_PUSH_PULL
)
1944 LOG_ERROR("can't set nSRST to push-pull on the Olimex ARM-USB-OCD");
1948 high_output
&= ~nSRST
;
1951 /* turn red LED on */
1952 high_output
|= 0x08;
1954 /* initialize high port */
1955 buf
[0] = 0x82; /* command "set data bits high byte" */
1956 buf
[1] = high_output
; /* value */
1957 buf
[2] = high_direction
; /* all outputs (xRST and xRSTnOE) */
1958 LOG_DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
1960 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
1962 LOG_ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
1963 return ERROR_JTAG_INIT_FAILED
;
1969 int flyswatter_init(void)
1975 low_direction
= 0xfb;
1977 /* initialize low byte for jtag */
1978 buf
[0] = 0x80; /* command "set data bits low byte" */
1979 buf
[1] = low_output
; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
1980 buf
[2] = low_direction
; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE[12]=out, n[ST]srst=out */
1981 LOG_DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
1983 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
1985 LOG_ERROR("couldn't initialize FT2232 with 'flyswatter' layout");
1986 return ERROR_JTAG_INIT_FAILED
;
1990 nTRSTnOE
= 0x0; /* not output enable for nTRST */
1992 nSRSTnOE
= 0x00; /* no output enable for nSRST */
1995 high_direction
= 0x0c;
1997 /* turn red LED1 on, LED2 off */
1998 high_output
|= 0x08;
2000 /* initialize high port */
2001 buf
[0] = 0x82; /* command "set data bits high byte" */
2002 buf
[1] = high_output
; /* value */
2003 buf
[2] = high_direction
; /* all outputs (xRST and xRSTnOE) */
2004 LOG_DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
2006 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
2008 LOG_ERROR("couldn't initialize FT2232 with 'flyswatter' layout");
2009 return ERROR_JTAG_INIT_FAILED
;
2015 int turtle_init(void)
2021 low_direction
= 0x5b;
2023 /* initialize low byte for jtag */
2024 buf
[0] = 0x80; /* command "set data bits low byte" */
2025 buf
[1] = low_output
; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
2026 buf
[2] = low_direction
; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
2027 LOG_DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
2029 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
2031 LOG_ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
2032 return ERROR_JTAG_INIT_FAILED
;
2038 high_direction
= 0x0C;
2040 /* initialize high port */
2041 buf
[0] = 0x82; /* command "set data bits high byte" */
2042 buf
[1] = high_output
;
2043 buf
[2] = high_direction
;
2044 LOG_DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
2046 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
2048 LOG_ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
2049 return ERROR_JTAG_INIT_FAILED
;
2055 int comstick_init(void)
2061 low_direction
= 0x0b;
2063 /* initialize low byte for jtag */
2064 buf
[0] = 0x80; /* command "set data bits low byte" */
2065 buf
[1] = low_output
; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
2066 buf
[2] = low_direction
; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
2067 LOG_DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
2069 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
2071 LOG_ERROR("couldn't initialize FT2232 with 'comstick' layout");
2072 return ERROR_JTAG_INIT_FAILED
;
2076 nTRSTnOE
= 0x00; /* no output enable for nTRST */
2078 nSRSTnOE
= 0x00; /* no output enable for nSRST */
2081 high_direction
= 0x03;
2083 /* initialize high port */
2084 buf
[0] = 0x82; /* command "set data bits high byte" */
2085 buf
[1] = high_output
;
2086 buf
[2] = high_direction
;
2087 LOG_DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
2089 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
2091 LOG_ERROR("couldn't initialize FT2232 with 'comstick' layout");
2092 return ERROR_JTAG_INIT_FAILED
;
2098 int stm32stick_init(void)
2104 low_direction
= 0x8b;
2106 /* initialize low byte for jtag */
2107 buf
[0] = 0x80; /* command "set data bits low byte" */
2108 buf
[1] = low_output
; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
2109 buf
[2] = low_direction
; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
2110 LOG_DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
2112 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
2114 LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
2115 return ERROR_JTAG_INIT_FAILED
;
2119 nTRSTnOE
= 0x00; /* no output enable for nTRST */
2121 nSRSTnOE
= 0x00; /* no output enable for nSRST */
2124 high_direction
= 0x03;
2126 /* initialize high port */
2127 buf
[0] = 0x82; /* command "set data bits high byte" */
2128 buf
[1] = high_output
;
2129 buf
[2] = high_direction
;
2130 LOG_DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
2132 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
2134 LOG_ERROR("couldn't initialize FT2232 with 'stm32stick' layout");
2135 return ERROR_JTAG_INIT_FAILED
;
2141 void olimex_jtag_blink(void)
2143 /* Olimex ARM-USB-OCD has a LED connected to ACBUS3
2144 * ACBUS3 is bit 3 of the GPIOH port
2146 if (high_output
& 0x08)
2148 /* set port pin high */
2149 high_output
&= 0x07;
2153 /* set port pin low */
2154 high_output
|= 0x08;
2158 BUFFER_ADD
= high_output
;
2159 BUFFER_ADD
= high_direction
;
2162 void turtle_jtag_blink(void)
2165 * Turtelizer2 has two LEDs connected to ACBUS2 and ACBUS3
2167 if (high_output
& 0x08)
2177 BUFFER_ADD
= high_output
;
2178 BUFFER_ADD
= high_direction
;
2181 int ft2232_quit(void)
2183 #if BUILD_FT2232_FTD2XX == 1
2186 status
= FT_Close(ftdih
);
2187 #elif BUILD_FT2232_LIBFTDI == 1
2188 ftdi_disable_bitbang(&ftdic
);
2190 ftdi_usb_close(&ftdic
);
2192 ftdi_deinit(&ftdic
);
2195 free(ft2232_buffer
);
2196 ft2232_buffer
= NULL
;
2201 int ft2232_handle_device_desc_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
2205 ft2232_device_desc
= strdup(args
[0]);
2209 LOG_ERROR("expected exactly one argument to ft2232_device_desc <description>");
2215 int ft2232_handle_serial_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
2219 ft2232_serial
= strdup(args
[0]);
2223 LOG_ERROR("expected exactly one argument to ft2232_serial <serial-number>");
2229 int ft2232_handle_layout_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
2234 ft2232_layout
= malloc(strlen(args
[0]) + 1);
2235 strcpy(ft2232_layout
, args
[0]);
2240 int ft2232_handle_vid_pid_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
2244 if (argc
> MAX_USB_IDS
*2) {
2245 LOG_WARNING("ignoring extra IDs in ft2232_vid_pid "
2246 "(maximum is %d pairs)", MAX_USB_IDS
);
2247 argc
= MAX_USB_IDS
*2;
2249 if (argc
< 2 || (argc
& 1))
2251 LOG_WARNING("incomplete ft2232_vid_pid configuration directive");
2256 for (i
= 0; i
+1 < argc
; i
+= 2) {
2257 ft2232_vid
[i
>> 1] = strtol(args
[i
], NULL
, 0);
2258 ft2232_pid
[i
>> 1] = strtol(args
[i
+1], NULL
, 0);
2261 * Explicitly terminate, in case there are multiples instances of
2264 ft2232_vid
[i
>> 1] = ft2232_pid
[i
>> 1] = 0;
2269 int ft2232_handle_latency_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
2273 ft2232_latency
= atoi(args
[0]);
2277 LOG_ERROR("expected exactly one argument to ft2232_latency <ms>");