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
);
77 char *ft2232_device_desc
= NULL
;
78 char *ft2232_serial
= NULL
;
79 char *ft2232_layout
= NULL
;
82 /* vid = pid = 0 marks the end of the list */
83 static u16 ft2232_vid
[MAX_USB_IDS
+1] = { 0x0403, 0 };
84 static u16 ft2232_pid
[MAX_USB_IDS
+1] = { 0x6010, 0 };
86 typedef struct ft2232_layout_s
90 void(*reset
)(int trst
, int srst
);
94 /* init procedures for supported layouts */
95 int usbjtag_init(void);
96 int jtagkey_init(void);
97 int olimex_jtag_init(void);
99 int turtle_init(void);
101 /* reset procedures for supported layouts */
102 void usbjtag_reset(int trst
, int srst
);
103 void jtagkey_reset(int trst
, int srst
);
104 void olimex_jtag_reset(int trst
, int srst
);
105 void m5960_reset(int trst
, int srst
);
106 void turtle_reset(int trst
, int srst
);
108 /* blink procedures for layouts that support a blinking led */
109 void olimex_jtag_blink(void);
110 void turtle_jtag_blink(void);
112 ft2232_layout_t ft2232_layouts
[] =
114 {"usbjtag", usbjtag_init
, usbjtag_reset
, NULL
},
115 {"jtagkey", jtagkey_init
, jtagkey_reset
, NULL
},
116 {"jtagkey_prototype_v1", jtagkey_init
, jtagkey_reset
, NULL
},
117 {"oocdlink", jtagkey_init
, jtagkey_reset
, NULL
},
118 {"signalyzer", usbjtag_init
, usbjtag_reset
, NULL
},
119 {"evb_lm3s811", usbjtag_init
, usbjtag_reset
, NULL
},
120 {"olimex-jtag", olimex_jtag_init
, olimex_jtag_reset
, olimex_jtag_blink
},
121 {"m5960", m5960_init
, m5960_reset
, NULL
},
122 {"turtelizer2", turtle_init
, turtle_reset
, turtle_jtag_blink
},
126 static u8 nTRST
, nTRSTnOE
, nSRST
, nSRSTnOE
;
128 static ft2232_layout_t
*layout
;
129 static u8 low_output
= 0x0;
130 static u8 low_direction
= 0x0;
131 static u8 high_output
= 0x0;
132 static u8 high_direction
= 0x0;
134 #if BUILD_FT2232_FTD2XX == 1
135 static FT_HANDLE ftdih
= NULL
;
136 #elif BUILD_FT2232_LIBFTDI == 1
137 static struct ftdi_context ftdic
;
140 static u8
*ft2232_buffer
= NULL
;
141 static int ft2232_buffer_size
= 0;
142 static int ft2232_read_pointer
= 0;
143 static int ft2232_expect_read
= 0;
144 #define FT2232_BUFFER_SIZE 131072
145 #define BUFFER_ADD ft2232_buffer[ft2232_buffer_size++]
146 #define BUFFER_READ ft2232_buffer[ft2232_read_pointer++]
148 jtag_interface_t ft2232_interface
=
153 .execute_queue
= ft2232_execute_queue
,
155 .support_pathmove
= 1,
157 .speed
= ft2232_speed
,
158 .register_commands
= ft2232_register_commands
,
163 int ft2232_write(u8
*buf
, int size
, u32
* bytes_written
)
165 #if BUILD_FT2232_FTD2XX == 1
167 DWORD dw_bytes_written
;
168 if ((status
= FT_Write(ftdih
, buf
, size
, &dw_bytes_written
)) != FT_OK
)
170 *bytes_written
= dw_bytes_written
;
171 ERROR("FT_Write returned: %lu", status
);
172 return ERROR_JTAG_DEVICE_ERROR
;
176 *bytes_written
= dw_bytes_written
;
179 #elif BUILD_FT2232_LIBFTDI == 1
181 if ((retval
= ftdi_write_data(&ftdic
, buf
, size
)) < 0)
184 ERROR("ftdi_write_data: %s", ftdi_get_error_string(&ftdic
));
185 return ERROR_JTAG_DEVICE_ERROR
;
189 *bytes_written
= retval
;
195 int ft2232_read(u8
* buf
, int size
, u32
* bytes_read
)
197 #if BUILD_FT2232_FTD2XX == 1
203 while ((*bytes_read
< size
) && timeout
--)
205 if ((status
= FT_Read(ftdih
, buf
, size
, &dw_bytes_read
)) != FT_OK
)
208 ERROR("FT_Read returned: %lu", status
);
209 return ERROR_JTAG_DEVICE_ERROR
;
211 *bytes_read
+= dw_bytes_read
;
213 #elif BUILD_FT2232_LIBFTDI == 1
218 while ((*bytes_read
< size
) && timeout
--)
220 if ((retval
= ftdi_read_data(&ftdic
, buf
+ *bytes_read
, size
- *bytes_read
)) < 0)
223 ERROR("ftdi_read_data: %s", ftdi_get_error_string(&ftdic
));
224 return ERROR_JTAG_DEVICE_ERROR
;
226 *bytes_read
+= retval
;
230 if (*bytes_read
< size
)
232 ERROR("couldn't read the requested number of bytes from FT2232 device (%i < %i)", *bytes_read
, size
);
233 return ERROR_JTAG_DEVICE_ERROR
;
239 int ft2232_speed(int speed
)
245 buf
[0] = 0x86; /* command "set divisor" */
246 buf
[1] = speed
& 0xff; /* valueL (0=6MHz, 1=3MHz, 2=1.5MHz, ...*/
247 buf
[2] = (speed
>> 8) & 0xff; /* valueH */
249 DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
250 if (((retval
= ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
252 ERROR("couldn't set FT2232 TCK speed");
259 int ft2232_register_commands(struct command_context_s
*cmd_ctx
)
261 register_command(cmd_ctx
, NULL
, "ft2232_device_desc", ft2232_handle_device_desc_command
,
262 COMMAND_CONFIG
, NULL
);
263 register_command(cmd_ctx
, NULL
, "ft2232_serial", ft2232_handle_serial_command
,
264 COMMAND_CONFIG
, NULL
);
265 register_command(cmd_ctx
, NULL
, "ft2232_layout", ft2232_handle_layout_command
,
266 COMMAND_CONFIG
, NULL
);
267 register_command(cmd_ctx
, NULL
, "ft2232_vid_pid", ft2232_handle_vid_pid_command
,
268 COMMAND_CONFIG
, NULL
);
272 void ft2232_end_state(state
)
274 if (tap_move_map
[state
] != -1)
278 ERROR("BUG: %i is not a valid end state", state
);
283 void ft2232_read_scan(enum scan_type type
, u8
* buffer
, int scan_size
)
285 int num_bytes
= ((scan_size
+ 7) / 8);
286 int bits_left
= scan_size
;
289 while(num_bytes
-- > 1)
291 buffer
[cur_byte
] = BUFFER_READ
;
296 buffer
[cur_byte
] = 0x0;
300 buffer
[cur_byte
] = BUFFER_READ
>> 1;
303 buffer
[cur_byte
] = (buffer
[cur_byte
] | ((BUFFER_READ
& 0x02) << 6)) >> (8 - bits_left
);
307 void ft2232_debug_dump_buffer(void)
313 for (i
= 0; i
< ft2232_buffer_size
; i
++)
315 line_p
+= snprintf(line_p
, 256 - (line_p
- line
), "%2.2x ", ft2232_buffer
[i
]);
327 int ft2232_send_and_recv(jtag_command_t
*first
, jtag_command_t
*last
)
337 #ifdef _DEBUG_USB_IO_
338 struct timeval start
, inter
, inter2
, end
;
339 struct timeval d_inter
, d_inter2
, d_end
;
342 #ifdef _DEBUG_USB_COMMS_
343 DEBUG("write buffer (size %i):", ft2232_buffer_size
);
344 ft2232_debug_dump_buffer();
347 #ifdef _DEBUG_USB_IO_
348 gettimeofday(&start
, NULL
);
351 if ((retval
= ft2232_write(ft2232_buffer
, ft2232_buffer_size
, &bytes_written
)) != ERROR_OK
)
353 ERROR("couldn't write MPSSE commands to FT2232");
357 #ifdef _DEBUG_USB_IO_
358 gettimeofday(&inter
, NULL
);
361 if (ft2232_expect_read
)
364 ft2232_buffer_size
= 0;
366 #ifdef _DEBUG_USB_IO_
367 gettimeofday(&inter2
, NULL
);
370 if ((retval
= ft2232_read(ft2232_buffer
, ft2232_expect_read
, &bytes_read
)) != ERROR_OK
)
372 ERROR("couldn't read from FT2232");
376 #ifdef _DEBUG_USB_IO_
377 gettimeofday(&end
, NULL
);
379 timeval_subtract(&d_inter
, &inter
, &start
);
380 timeval_subtract(&d_inter2
, &inter2
, &start
);
381 timeval_subtract(&d_end
, &end
, &start
);
383 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
);
387 ft2232_buffer_size
= bytes_read
;
389 if (ft2232_expect_read
!= ft2232_buffer_size
)
391 ERROR("ft2232_expect_read (%i) != ft2232_buffer_size (%i) (%i retries)", ft2232_expect_read
, ft2232_buffer_size
, 100 - timeout
);
392 ft2232_debug_dump_buffer();
397 #ifdef _DEBUG_USB_COMMS_
398 DEBUG("read buffer (%i retries): %i bytes", 100 - timeout
, ft2232_buffer_size
);
399 ft2232_debug_dump_buffer();
403 ft2232_expect_read
= 0;
404 ft2232_read_pointer
= 0;
412 type
= jtag_scan_type(cmd
->cmd
.scan
);
413 if (type
!= SCAN_OUT
)
415 scan_size
= jtag_scan_size(cmd
->cmd
.scan
);
416 buffer
= calloc(CEIL(scan_size
, 8), 1);
417 ft2232_read_scan(type
, buffer
, scan_size
);
418 jtag_read_buffer(buffer
, cmd
->cmd
.scan
);
428 ft2232_buffer_size
= 0;
433 void ft2232_add_pathmove(pathmove_command_t
*cmd
)
435 int num_states
= cmd
->num_states
;
445 /* command "Clock Data to TMS/CS Pin (no Read)" */
447 /* number of states remaining */
448 BUFFER_ADD
= (num_states
% 7) - 1;
450 while (num_states
% 7)
452 if (tap_transitions
[cur_state
].low
== cmd
->path
[state_count
])
453 buf_set_u32(&tms_byte
, bit_count
++, 1, 0x0);
454 else if (tap_transitions
[cur_state
].high
== cmd
->path
[state_count
])
455 buf_set_u32(&tms_byte
, bit_count
++, 1, 0x1);
458 ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings
[cur_state
], tap_state_strings
[cmd
->path
[state_count
]]);
462 cur_state
= cmd
->path
[state_count
];
467 BUFFER_ADD
= tms_byte
;
470 end_state
= cur_state
;
473 void ft2232_add_scan(int ir_scan
, enum scan_type type
, u8
*buffer
, int scan_size
)
475 int num_bytes
= (scan_size
+ 7) / 8;
476 int bits_left
= scan_size
;
480 if (!((!ir_scan
&& (cur_state
== TAP_SD
)) || (ir_scan
&& (cur_state
== TAP_SI
))))
482 /* command "Clock Data to TMS/CS Pin (no Read)" */
489 BUFFER_ADD
= TAP_MOVE(cur_state
, TAP_SI
);
494 BUFFER_ADD
= TAP_MOVE(cur_state
, TAP_SD
);
497 //DEBUG("added TMS scan (no read)");
500 /* add command for complete bytes */
501 while (num_bytes
> 1)
506 /* Clock Data Bytes In and Out LSB First */
508 //DEBUG("added TDI bytes (io %i)", num_bytes);
510 else if (type
== SCAN_OUT
)
512 /* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */
514 //DEBUG("added TDI bytes (o)");
516 else if (type
== SCAN_IN
)
518 /* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */
520 //DEBUG("added TDI bytes (i %i)", num_bytes);
522 thisrun_bytes
= (num_bytes
> 65537) ? 65536 : (num_bytes
- 1);
523 num_bytes
-= thisrun_bytes
;
524 BUFFER_ADD
= (thisrun_bytes
- 1) & 0xff;
525 BUFFER_ADD
= ((thisrun_bytes
- 1) >> 8) & 0xff;
528 /* add complete bytes */
529 while(thisrun_bytes
-- > 0)
531 BUFFER_ADD
= buffer
[cur_byte
];
536 else /* (type == SCAN_IN) */
538 bits_left
-= 8 * (thisrun_bytes
);
542 /* the most signifcant bit is scanned during TAP movement */
544 last_bit
= (buffer
[cur_byte
] >> (bits_left
- 1)) & 0x1;
548 /* process remaining bits but the last one */
553 /* Clock Data Bits In and Out LSB First */
555 //DEBUG("added TDI bits (io) %i", bits_left - 1);
557 else if (type
== SCAN_OUT
)
559 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
561 //DEBUG("added TDI bits (o)");
563 else if (type
== SCAN_IN
)
565 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
567 //DEBUG("added TDI bits (i %i)", bits_left - 1);
569 BUFFER_ADD
= bits_left
- 2;
571 BUFFER_ADD
= buffer
[cur_byte
];
574 if ((ir_scan
&& (end_state
== TAP_SI
)) ||
575 (!ir_scan
&& (end_state
== TAP_SD
)))
579 /* Clock Data Bits In and Out LSB First */
581 //DEBUG("added TDI bits (io) %i", bits_left - 1);
583 else if (type
== SCAN_OUT
)
585 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
587 //DEBUG("added TDI bits (o)");
589 else if (type
== SCAN_IN
)
591 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
593 //DEBUG("added TDI bits (i %i)", bits_left - 1);
596 BUFFER_ADD
= last_bit
;
600 /* move from Shift-IR/DR to end state */
601 if (type
!= SCAN_OUT
)
603 /* Clock Data to TMS/CS Pin with Read */
605 //DEBUG("added TMS scan (read)");
609 /* Clock Data to TMS/CS Pin (no Read) */
611 //DEBUG("added TMS scan (no read)");
614 BUFFER_ADD
= TAP_MOVE(cur_state
, end_state
) | (last_bit
<< 7);
615 cur_state
= end_state
;
619 int ft2232_large_scan(scan_command_t
*cmd
, enum scan_type type
, u8
*buffer
, int scan_size
)
621 int num_bytes
= (scan_size
+ 7) / 8;
622 int bits_left
= scan_size
;
625 u8
*receive_buffer
= malloc(CEIL(scan_size
, 8));
626 u8
*receive_pointer
= receive_buffer
;
630 int thisrun_read
= 0;
634 ERROR("BUG: large IR scans are not supported");
638 if (cur_state
!= TAP_SD
)
640 /* command "Clock Data to TMS/CS Pin (no Read)" */
645 BUFFER_ADD
= TAP_MOVE(cur_state
, TAP_SD
);
649 if ((retval
= ft2232_write(ft2232_buffer
, ft2232_buffer_size
, &bytes_written
)) != ERROR_OK
)
651 ERROR("couldn't write MPSSE commands to FT2232");
654 DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size
, bytes_written
);
655 ft2232_buffer_size
= 0;
657 /* add command for complete bytes */
658 while (num_bytes
> 1)
664 /* Clock Data Bytes In and Out LSB First */
666 //DEBUG("added TDI bytes (io %i)", num_bytes);
668 else if (type
== SCAN_OUT
)
670 /* Clock Data Bytes Out on -ve Clock Edge LSB First (no Read) */
672 //DEBUG("added TDI bytes (o)");
674 else if (type
== SCAN_IN
)
676 /* Clock Data Bytes In on +ve Clock Edge LSB First (no Write) */
678 //DEBUG("added TDI bytes (i %i)", num_bytes);
680 thisrun_bytes
= (num_bytes
> 65537) ? 65536 : (num_bytes
- 1);
681 thisrun_read
= thisrun_bytes
;
682 num_bytes
-= thisrun_bytes
;
683 BUFFER_ADD
= (thisrun_bytes
- 1) & 0xff;
684 BUFFER_ADD
= ((thisrun_bytes
- 1) >> 8) & 0xff;
687 /* add complete bytes */
688 while(thisrun_bytes
-- > 0)
690 BUFFER_ADD
= buffer
[cur_byte
];
695 else /* (type == SCAN_IN) */
697 bits_left
-= 8 * (thisrun_bytes
);
700 if ((retval
= ft2232_write(ft2232_buffer
, ft2232_buffer_size
, &bytes_written
)) != ERROR_OK
)
702 ERROR("couldn't write MPSSE commands to FT2232");
705 DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size
, bytes_written
);
706 ft2232_buffer_size
= 0;
708 if (type
!= SCAN_OUT
)
710 if ((retval
= ft2232_read(receive_pointer
, thisrun_read
, &bytes_read
)) != ERROR_OK
)
712 ERROR("couldn't read from FT2232");
715 DEBUG("thisrun_read: %i, bytes_read: %i", thisrun_read
, bytes_read
);
716 receive_pointer
+= bytes_read
;
722 /* the most signifcant bit is scanned during TAP movement */
724 last_bit
= (buffer
[cur_byte
] >> (bits_left
- 1)) & 0x1;
728 /* process remaining bits but the last one */
733 /* Clock Data Bits In and Out LSB First */
735 //DEBUG("added TDI bits (io) %i", bits_left - 1);
737 else if (type
== SCAN_OUT
)
739 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
741 //DEBUG("added TDI bits (o)");
743 else if (type
== SCAN_IN
)
745 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
747 //DEBUG("added TDI bits (i %i)", bits_left - 1);
749 BUFFER_ADD
= bits_left
- 2;
751 BUFFER_ADD
= buffer
[cur_byte
];
753 if (type
!= SCAN_OUT
)
757 if (end_state
== TAP_SD
)
761 /* Clock Data Bits In and Out LSB First */
763 //DEBUG("added TDI bits (io) %i", bits_left - 1);
765 else if (type
== SCAN_OUT
)
767 /* Clock Data Bits Out on -ve Clock Edge LSB First (no Read) */
769 //DEBUG("added TDI bits (o)");
771 else if (type
== SCAN_IN
)
773 /* Clock Data Bits In on +ve Clock Edge LSB First (no Write) */
775 //DEBUG("added TDI bits (i %i)", bits_left - 1);
778 BUFFER_ADD
= last_bit
;
782 /* move from Shift-IR/DR to end state */
783 if (type
!= SCAN_OUT
)
785 /* Clock Data to TMS/CS Pin with Read */
787 //DEBUG("added TMS scan (read)");
791 /* Clock Data to TMS/CS Pin (no Read) */
793 //DEBUG("added TMS scan (no read)");
796 BUFFER_ADD
= TAP_MOVE(cur_state
, end_state
) | (last_bit
<< 7);
797 cur_state
= end_state
;
800 if (type
!= SCAN_OUT
)
803 if ((retval
= ft2232_write(ft2232_buffer
, ft2232_buffer_size
, &bytes_written
)) != ERROR_OK
)
805 ERROR("couldn't write MPSSE commands to FT2232");
808 DEBUG("ft2232_buffer_size: %i, bytes_written: %i", ft2232_buffer_size
, bytes_written
);
809 ft2232_buffer_size
= 0;
811 if (type
!= SCAN_OUT
)
813 if ((retval
= ft2232_read(receive_pointer
, thisrun_read
, &bytes_read
)) != ERROR_OK
)
815 ERROR("couldn't read from FT2232");
818 DEBUG("thisrun_read: %i, bytes_read: %i", thisrun_read
, bytes_read
);
819 receive_pointer
+= bytes_read
;
825 int ft2232_predict_scan_out(int scan_size
, enum scan_type type
)
827 int predicted_size
= 3;
828 int num_bytes
= (scan_size
- 1) / 8;
830 if (cur_state
!= TAP_SD
)
833 if (type
== SCAN_IN
) /* only from device to host */
836 predicted_size
+= (CEIL(num_bytes
, 65536)) * 3;
837 /* remaining bits - 1 (up to 7) */
838 predicted_size
+= ((scan_size
- 1) % 8) ? 2 : 0;
840 else /* host to device, or bidirectional */
843 predicted_size
+= num_bytes
+ (CEIL(num_bytes
, 65536)) * 3;
844 /* remaining bits -1 (up to 7) */
845 predicted_size
+= ((scan_size
- 1) % 8) ? 3 : 0;
848 return predicted_size
;
851 int ft2232_predict_scan_in(int scan_size
, enum scan_type type
)
853 int predicted_size
= 0;
855 if (type
!= SCAN_OUT
)
858 predicted_size
+= (CEIL(scan_size
, 8) > 1) ? (CEIL(scan_size
, 8) - 1) : 0;
859 /* remaining bits - 1 */
860 predicted_size
+= ((scan_size
- 1) % 8) ? 1 : 0;
861 /* last bit (from TMS scan) */
865 //DEBUG("scan_size: %i, predicted_size: %i", scan_size, predicted_size);
867 return predicted_size
;
870 void usbjtag_reset(int trst
, int srst
)
875 if (jtag_reset_config
& RESET_TRST_OPEN_DRAIN
)
876 low_direction
|= nTRSTnOE
; /* switch to output pin (output is low) */
878 low_output
&= ~nTRST
; /* switch output low */
882 if (jtag_reset_config
& RESET_TRST_OPEN_DRAIN
)
883 low_direction
&= ~nTRSTnOE
; /* switch to input pin (high-Z + internal and external pullup) */
885 low_output
|= nTRST
; /* switch output high */
890 if (jtag_reset_config
& RESET_SRST_PUSH_PULL
)
891 low_output
&= ~nSRST
; /* switch output low */
893 low_direction
|= nSRSTnOE
; /* switch to output pin (output is low) */
897 if (jtag_reset_config
& RESET_SRST_PUSH_PULL
)
898 low_output
|= nSRST
; /* switch output high */
900 low_direction
&= ~nSRSTnOE
; /* switch to input pin (high-Z) */
903 /* command "set data bits low byte" */
905 BUFFER_ADD
= low_output
;
906 BUFFER_ADD
= low_direction
;
910 void jtagkey_reset(int trst
, int srst
)
915 if (jtag_reset_config
& RESET_TRST_OPEN_DRAIN
)
916 high_output
&= ~nTRSTnOE
;
918 high_output
&= ~nTRST
;
922 if (jtag_reset_config
& RESET_TRST_OPEN_DRAIN
)
923 high_output
|= nTRSTnOE
;
925 high_output
|= nTRST
;
930 if (jtag_reset_config
& RESET_SRST_PUSH_PULL
)
931 high_output
&= ~nSRST
;
933 high_output
&= ~nSRSTnOE
;
937 if (jtag_reset_config
& RESET_SRST_PUSH_PULL
)
938 high_output
|= nSRST
;
940 high_output
|= nSRSTnOE
;
943 /* command "set data bits high byte" */
945 BUFFER_ADD
= high_output
;
946 BUFFER_ADD
= high_direction
;
947 DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst
, srst
, high_output
, high_direction
);
950 void olimex_jtag_reset(int trst
, int srst
)
955 if (jtag_reset_config
& RESET_TRST_OPEN_DRAIN
)
956 high_output
&= ~nTRSTnOE
;
958 high_output
&= ~nTRST
;
962 if (jtag_reset_config
& RESET_TRST_OPEN_DRAIN
)
963 high_output
|= nTRSTnOE
;
965 high_output
|= nTRST
;
970 high_output
|= nSRST
;
974 high_output
&= ~nSRST
;
977 /* command "set data bits high byte" */
979 BUFFER_ADD
= high_output
;
980 BUFFER_ADD
= high_direction
;
981 DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst
, srst
, high_output
, high_direction
);
984 void m5960_reset(int trst
, int srst
)
989 low_output
&= ~nTRST
;
1002 low_output
&= ~nSRST
;
1005 /* command "set data bits low byte" */
1007 BUFFER_ADD
= low_output
;
1008 BUFFER_ADD
= low_direction
;
1009 DEBUG("trst: %i, srst: %i, high_output: 0x%2.2x, high_direction: 0x%2.2x", trst
, srst
, high_output
, high_direction
);
1012 void turtle_reset(int trst
, int srst
)
1018 low_output
|= nSRST
;
1022 low_output
&= ~nSRST
;
1025 /* command "set data bits high byte" */
1027 BUFFER_ADD
= low_output
;
1028 BUFFER_ADD
= low_direction
;
1029 DEBUG("srst: %i, low_output: 0x%2.2x, low_direction: 0x%2.2x", srst
, low_output
, low_direction
);
1032 int ft2232_execute_queue()
1034 jtag_command_t
*cmd
= jtag_command_queue
; /* currently processed command */
1035 jtag_command_t
*first_unsent
= cmd
; /* next command that has to be sent */
1037 int scan_size
; /* size of IR or DR scan */
1038 enum scan_type type
;
1040 int predicted_size
= 0;
1041 int require_send
= 0;
1043 ft2232_buffer_size
= 0;
1044 ft2232_expect_read
= 0;
1046 /* blink, if the current layout has that feature */
1054 case JTAG_END_STATE
:
1055 if (cmd
->cmd
.end_state
->end_state
!= -1)
1056 ft2232_end_state(cmd
->cmd
.end_state
->end_state
);
1059 /* only send the maximum buffer size that FT2232C can handle */
1061 if (ft2232_buffer_size
+ predicted_size
+ 1 > FT2232_BUFFER_SIZE
)
1063 ft2232_send_and_recv(first_unsent
, cmd
);
1068 layout
->reset(cmd
->cmd
.reset
->trst
, cmd
->cmd
.reset
->srst
);
1071 #ifdef _DEBUG_JTAG_IO_
1072 DEBUG("trst: %i, srst: %i", cmd
->cmd
.reset
->trst
, cmd
->cmd
.reset
->srst
);
1076 /* only send the maximum buffer size that FT2232C can handle */
1078 if (cur_state
!= TAP_RTI
)
1079 predicted_size
+= 3;
1080 predicted_size
+= 3 * CEIL(cmd
->cmd
.runtest
->num_cycles
, 7);
1081 if ((cmd
->cmd
.runtest
->end_state
!= -1) && (cmd
->cmd
.runtest
->end_state
!= TAP_RTI
))
1082 predicted_size
+= 3;
1083 if ((cmd
->cmd
.runtest
->end_state
== -1) && (end_state
!= TAP_RTI
))
1084 predicted_size
+= 3;
1085 if (ft2232_buffer_size
+ predicted_size
+ 1 > FT2232_BUFFER_SIZE
)
1087 ft2232_send_and_recv(first_unsent
, cmd
);
1091 if (cur_state
!= TAP_RTI
)
1093 /* command "Clock Data to TMS/CS Pin (no Read)" */
1098 BUFFER_ADD
= TAP_MOVE(cur_state
, TAP_RTI
);
1099 cur_state
= TAP_RTI
;
1102 i
= cmd
->cmd
.runtest
->num_cycles
;
1105 /* command "Clock Data to TMS/CS Pin (no Read)" */
1108 BUFFER_ADD
= (i
> 7) ? 6 : (i
- 1);
1111 cur_state
= TAP_RTI
;
1112 i
-= (i
> 7) ? 7 : i
;
1113 //DEBUG("added TMS scan (no read)");
1115 if (cmd
->cmd
.runtest
->end_state
!= -1)
1116 ft2232_end_state(cmd
->cmd
.runtest
->end_state
);
1117 if (cur_state
!= end_state
)
1119 /* command "Clock Data to TMS/CS Pin (no Read)" */
1124 BUFFER_ADD
= TAP_MOVE(cur_state
, end_state
);
1125 cur_state
= end_state
;
1126 //DEBUG("added TMS scan (no read)");
1129 #ifdef _DEBUG_JTAG_IO_
1130 DEBUG("runtest: %i, end in %i", cmd
->cmd
.runtest
->num_cycles
, end_state
);
1133 case JTAG_STATEMOVE
:
1134 /* only send the maximum buffer size that FT2232C can handle */
1136 if (ft2232_buffer_size
+ predicted_size
+ 1 > FT2232_BUFFER_SIZE
)
1138 ft2232_send_and_recv(first_unsent
, cmd
);
1142 if (cmd
->cmd
.statemove
->end_state
!= -1)
1143 ft2232_end_state(cmd
->cmd
.statemove
->end_state
);
1144 /* command "Clock Data to TMS/CS Pin (no Read)" */
1149 BUFFER_ADD
= TAP_MOVE(cur_state
, end_state
);
1150 //DEBUG("added TMS scan (no read)");
1151 cur_state
= end_state
;
1153 #ifdef _DEBUG_JTAG_IO_
1154 DEBUG("statemove: %i", end_state
);
1158 /* only send the maximum buffer size that FT2232C can handle */
1159 predicted_size
= 3 * CEIL(cmd
->cmd
.pathmove
->num_states
, 7);
1160 if (ft2232_buffer_size
+ predicted_size
+ 1 > FT2232_BUFFER_SIZE
)
1162 ft2232_send_and_recv(first_unsent
, cmd
);
1166 ft2232_add_pathmove(cmd
->cmd
.pathmove
);
1168 #ifdef _DEBUG_JTAG_IO_
1169 DEBUG("pathmove: %i states, end in %i", cmd
->cmd
.pathmove
->num_states
, cmd
->cmd
.pathmove
->path
[cmd
->cmd
.pathmove
->num_states
- 1]);
1173 scan_size
= jtag_build_buffer(cmd
->cmd
.scan
, &buffer
);
1174 type
= jtag_scan_type(cmd
->cmd
.scan
);
1175 predicted_size
= ft2232_predict_scan_out(scan_size
, type
);
1176 if ((predicted_size
+ 1) > FT2232_BUFFER_SIZE
)
1178 DEBUG("oversized ft2232 scan (predicted_size > FT2232_BUFFER_SIZE)");
1179 /* unsent commands before this */
1180 if (first_unsent
!= cmd
)
1181 ft2232_send_and_recv(first_unsent
, cmd
);
1183 /* current command */
1184 if (cmd
->cmd
.scan
->end_state
!= -1)
1185 ft2232_end_state(cmd
->cmd
.scan
->end_state
);
1186 ft2232_large_scan(cmd
->cmd
.scan
, type
, buffer
, scan_size
);
1188 first_unsent
= cmd
->next
;
1193 else if (ft2232_buffer_size
+ predicted_size
+ 1 > FT2232_BUFFER_SIZE
)
1195 DEBUG("ft2232 buffer size reached, sending queued commands (first_unsent: %p, cmd: %p)", first_unsent
, cmd
);
1196 ft2232_send_and_recv(first_unsent
, cmd
);
1200 ft2232_expect_read
+= ft2232_predict_scan_in(scan_size
, type
);
1201 //DEBUG("new read size: %i", ft2232_expect_read);
1202 if (cmd
->cmd
.scan
->end_state
!= -1)
1203 ft2232_end_state(cmd
->cmd
.scan
->end_state
);
1204 ft2232_add_scan(cmd
->cmd
.scan
->ir_scan
, type
, buffer
, scan_size
);
1208 #ifdef _DEBUG_JTAG_IO_
1209 DEBUG("%s scan, %i bit, end in %i", (cmd
->cmd
.scan
->ir_scan
) ? "IR" : "DR", scan_size
, end_state
);
1213 ft2232_send_and_recv(first_unsent
, cmd
);
1214 first_unsent
= cmd
->next
;
1215 jtag_sleep(cmd
->cmd
.sleep
->us
);
1216 #ifdef _DEBUG_JTAG_IO_
1217 DEBUG("sleep %i usec", cmd
->cmd
.sleep
->us
);
1221 ERROR("BUG: unknown JTAG command type encountered");
1227 if (require_send
> 0)
1228 ft2232_send_and_recv(first_unsent
, cmd
);
1233 #if BUILD_FT2232_FTD2XX == 1
1234 static int ft2232_init_ftd2xx(u16 vid
, u16 pid
, int more
, int *try_more
)
1237 DWORD openex_flags
= 0;
1238 char *openex_string
= NULL
;
1241 DEBUG("'ft2232' interface using FTD2XX with '%s' layout (%4.4x:%4.4x)",
1242 ft2232_layout
, vid
, pid
);
1245 /* Add non-standard Vid/Pid to the linux driver */
1246 if ((status
= FT_SetVIDPID(vid
, pid
)) != FT_OK
)
1248 WARNING("couldn't add %4.4x:%4.4x",
1253 if (ft2232_device_desc
&& ft2232_serial
)
1255 WARNING("can't open by device description and serial number, giving precedence to serial");
1256 ft2232_device_desc
= NULL
;
1259 if (ft2232_device_desc
)
1261 openex_string
= ft2232_device_desc
;
1262 openex_flags
= FT_OPEN_BY_DESCRIPTION
;
1264 else if (ft2232_serial
)
1266 openex_string
= ft2232_serial
;
1267 openex_flags
= FT_OPEN_BY_SERIAL_NUMBER
;
1271 ERROR("neither device description nor serial number specified");
1272 ERROR("please add \"ft2232_device_desc <string>\" or \"ft2232_serial <string>\" to your .cfg file");
1274 return ERROR_JTAG_INIT_FAILED
;
1277 if ((status
= FT_OpenEx(openex_string
, openex_flags
, &ftdih
)) != FT_OK
)
1282 WARNING("unable to open ftdi device (trying more): %lu",
1285 return ERROR_JTAG_INIT_FAILED
;
1287 ERROR("unable to open ftdi device: %lu", status
);
1288 status
= FT_ListDevices(&num_devices
, NULL
, FT_LIST_NUMBER_ONLY
);
1289 if (status
== FT_OK
)
1291 char **desc_array
= malloc(sizeof(char*) * (num_devices
+ 1));
1294 for (i
= 0; i
< num_devices
; i
++)
1295 desc_array
[i
] = malloc(64);
1296 desc_array
[num_devices
] = NULL
;
1298 status
= FT_ListDevices(desc_array
, &num_devices
, FT_LIST_ALL
| openex_flags
);
1300 if (status
== FT_OK
)
1302 ERROR("ListDevices: %lu\n", num_devices
);
1303 for (i
= 0; i
< num_devices
; i
++)
1304 ERROR("%i: %s", i
, desc_array
[i
]);
1307 for (i
= 0; i
< num_devices
; i
++)
1308 free(desc_array
[i
]);
1313 printf("ListDevices: NONE\n");
1315 return ERROR_JTAG_INIT_FAILED
;
1318 if ((status
= FT_SetLatencyTimer(ftdih
, 2)) != FT_OK
)
1320 ERROR("unable to set latency timer: %lu", status
);
1321 return ERROR_JTAG_INIT_FAILED
;
1324 if ((status
= FT_GetLatencyTimer(ftdih
, &latency_timer
)) != FT_OK
)
1326 ERROR("unable to get latency timer: %lu", status
);
1327 return ERROR_JTAG_INIT_FAILED
;
1331 DEBUG("current latency timer: %i", latency_timer
);
1334 if ((status
= FT_SetTimeouts(ftdih
, 5000, 5000)) != FT_OK
)
1336 ERROR("unable to set timeouts: %lu", status
);
1337 return ERROR_JTAG_INIT_FAILED
;
1340 if ((status
= FT_SetBitMode(ftdih
, 0x0b, 2)) != FT_OK
)
1342 ERROR("unable to enable bit i/o mode: %lu", status
);
1343 return ERROR_JTAG_INIT_FAILED
;
1349 static int ft2232_purge_ftd2xx(void)
1353 if ((status
= FT_Purge(ftdih
, FT_PURGE_RX
| FT_PURGE_TX
)) != FT_OK
)
1355 ERROR("error purging ftd2xx device: %lu", status
);
1356 return ERROR_JTAG_INIT_FAILED
;
1361 #endif /* BUILD_FT2232_FTD2XX == 1 */
1363 #if BUILD_FT2232_LIBFTDI == 1
1364 static int ft2232_init_libftdi(u16 vid
, u16 pid
, int more
, int *try_more
)
1368 DEBUG("'ft2232' interface using libftdi with '%s' layout (%4.4x:%4.4x)",
1369 ft2232_layout
, vid
, pid
);
1371 if (ftdi_init(&ftdic
) < 0)
1372 return ERROR_JTAG_INIT_FAILED
;
1374 /* context, vendor id, product id */
1375 if (ftdi_usb_open_desc(&ftdic
, vid
, pid
, ft2232_device_desc
,
1376 ft2232_serial
) < 0) {
1378 WARNING("unable to open ftdi device (trying more): %s",
1381 ERROR("unable to open ftdi device: %s", ftdic
.error_str
);
1383 return ERROR_JTAG_INIT_FAILED
;
1386 if (ftdi_set_interface(&ftdic
, INTERFACE_A
) < 0)
1388 ERROR("unable to select FT2232 channel A: %s", ftdic
.error_str
);
1389 return ERROR_JTAG_INIT_FAILED
;
1392 if (ftdi_usb_reset(&ftdic
) < 0)
1394 ERROR("unable to reset ftdi device");
1395 return ERROR_JTAG_INIT_FAILED
;
1398 if (ftdi_set_latency_timer(&ftdic
, 2) < 0)
1400 ERROR("unable to set latency timer");
1401 return ERROR_JTAG_INIT_FAILED
;
1404 if (ftdi_get_latency_timer(&ftdic
, &latency_timer
) < 0)
1406 ERROR("unable to get latency timer");
1407 return ERROR_JTAG_INIT_FAILED
;
1411 DEBUG("current latency timer: %i", latency_timer
);
1414 ftdi_set_bitmode(&ftdic
, 0x0b, 2); /* ctx, JTAG I/O mask */
1419 static int ft2232_purge_libftdi(void)
1421 if (ftdi_usb_purge_buffers(&ftdic
) < 0)
1423 ERROR("ftdi_purge_buffers: %s", ftdic
.error_str
);
1424 return ERROR_JTAG_INIT_FAILED
;
1429 #endif /* BUILD_FT2232_LIBFTDI == 1 */
1431 int ft2232_init(void)
1436 ft2232_layout_t
*cur_layout
= ft2232_layouts
;
1439 if ((ft2232_layout
== NULL
) || (ft2232_layout
[0] == 0))
1441 ft2232_layout
= "usbjtag";
1442 WARNING("No ft2232 layout specified, using default 'usbjtag'");
1445 while (cur_layout
->name
)
1447 if (strcmp(cur_layout
->name
, ft2232_layout
) == 0)
1449 layout
= cur_layout
;
1457 ERROR("No matching layout found for %s", ft2232_layout
);
1458 return ERROR_JTAG_INIT_FAILED
;
1461 for (i
= 0; 1; i
++) {
1463 * "more indicates that there are more IDs to try, so we should
1464 * not print an error for an ID mismatch (but for anything
1467 * try_more indicates that the error code returned indicates an
1468 * ID mismatch (and nothing else) and that we should proceeed
1469 * with the next ID pair.
1471 int more
= ft2232_vid
[i
+1] || ft2232_pid
[i
+1];
1474 #if BUILD_FT2232_FTD2XX == 1
1475 retval
= ft2232_init_ftd2xx(ft2232_vid
[i
], ft2232_pid
[i
],
1477 #elif BUILD_FT2232_LIBFTDI == 1
1478 retval
= ft2232_init_libftdi(ft2232_vid
[i
], ft2232_pid
[i
],
1483 if (!more
|| !try_more
)
1487 ft2232_buffer_size
= 0;
1488 ft2232_buffer
= malloc(FT2232_BUFFER_SIZE
);
1490 if (layout
->init() != ERROR_OK
)
1491 return ERROR_JTAG_INIT_FAILED
;
1493 ft2232_speed(jtag_speed
);
1495 buf
[0] = 0x85; /* Disconnect TDI/DO to TDO/DI for Loopback */
1496 if (((retval
= ft2232_write(buf
, 1, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 1))
1498 ERROR("couldn't write to FT2232 to disable loopback");
1499 return ERROR_JTAG_INIT_FAILED
;
1502 #if BUILD_FT2232_FTD2XX == 1
1503 return ft2232_purge_ftd2xx();
1504 #elif BUILD_FT2232_LIBFTDI == 1
1505 return ft2232_purge_libftdi();
1511 int usbjtag_init(void)
1517 low_direction
= 0x0b;
1519 if (strcmp(ft2232_layout
, "usbjtag") == 0)
1526 else if (strcmp(ft2232_layout
, "signalyzer") == 0)
1533 else if (strcmp(ft2232_layout
, "evb_lm3s811") == 0)
1540 low_direction
= 0x8b;
1544 ERROR("BUG: usbjtag_init called for unknown layout '%s'", ft2232_layout
);
1545 return ERROR_JTAG_INIT_FAILED
;
1548 if (jtag_reset_config
& RESET_TRST_OPEN_DRAIN
)
1550 low_direction
&= ~nTRSTnOE
; /* nTRST input */
1551 low_output
&= ~nTRST
; /* nTRST = 0 */
1555 low_direction
|= nTRSTnOE
; /* nTRST output */
1556 low_output
|= nTRST
; /* nTRST = 1 */
1559 if (jtag_reset_config
& RESET_SRST_PUSH_PULL
)
1561 low_direction
|= nSRSTnOE
; /* nSRST output */
1562 low_output
|= nSRST
; /* nSRST = 1 */
1566 low_direction
&= ~nSRSTnOE
; /* nSRST input */
1567 low_output
&= ~nSRST
; /* nSRST = 0 */
1570 /* initialize low byte for jtag */
1571 buf
[0] = 0x80; /* command "set data bits low byte" */
1572 buf
[1] = low_output
; /* value (TMS=1,TCK=0, TDI=0, xRST high) */
1573 buf
[2] = low_direction
; /* dir (output=1), TCK/TDI/TMS=out, TDO=in */
1574 DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
1576 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
1578 ERROR("couldn't initialize FT2232 with 'USBJTAG' layout");
1579 return ERROR_JTAG_INIT_FAILED
;
1585 int jtagkey_init(void)
1591 low_direction
= 0x1b;
1593 /* initialize low byte for jtag */
1594 buf
[0] = 0x80; /* command "set data bits low byte" */
1595 buf
[1] = low_output
; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
1596 buf
[2] = low_direction
; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
1597 DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
1599 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
1601 ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
1602 return ERROR_JTAG_INIT_FAILED
;
1605 if (strcmp(layout
->name
, "jtagkey") == 0)
1612 else if ((strcmp(layout
->name
, "jtagkey_prototype_v1") == 0) ||
1613 (strcmp(layout
->name
, "oocdlink") == 0))
1622 ERROR("BUG: jtagkey_init called for non jtagkey layout");
1627 high_direction
= 0x0f;
1629 if (jtag_reset_config
& RESET_TRST_OPEN_DRAIN
)
1631 high_output
|= nTRSTnOE
;
1632 high_output
&= ~nTRST
;
1636 high_output
&= ~nTRSTnOE
;
1637 high_output
|= nTRST
;
1640 if (jtag_reset_config
& RESET_SRST_PUSH_PULL
)
1642 high_output
&= ~nSRSTnOE
;
1643 high_output
|= nSRST
;
1647 high_output
|= nSRSTnOE
;
1648 high_output
&= ~nSRST
;
1651 /* initialize high port */
1652 buf
[0] = 0x82; /* command "set data bits high byte" */
1653 buf
[1] = high_output
; /* value */
1654 buf
[2] = high_direction
; /* all outputs (xRST and xRSTnOE) */
1655 DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
1657 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
1659 ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
1660 return ERROR_JTAG_INIT_FAILED
;
1666 int olimex_jtag_init(void)
1672 low_direction
= 0x1b;
1674 /* initialize low byte for jtag */
1675 buf
[0] = 0x80; /* command "set data bits low byte" */
1676 buf
[1] = low_output
; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
1677 buf
[2] = low_direction
; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
1678 DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
1680 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
1682 ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
1683 return ERROR_JTAG_INIT_FAILED
;
1689 nSRSTnOE
= 0x00; /* no output enable for nSRST */
1692 high_direction
= 0x0f;
1694 if (jtag_reset_config
& RESET_TRST_OPEN_DRAIN
)
1696 high_output
|= nTRSTnOE
;
1697 high_output
&= ~nTRST
;
1701 high_output
&= ~nTRSTnOE
;
1702 high_output
|= nTRST
;
1705 if (jtag_reset_config
& RESET_SRST_PUSH_PULL
)
1707 ERROR("can't set nSRST to push-pull on the Olimex ARM-USB-OCD");
1711 high_output
&= ~nSRST
;
1714 /* turn red LED on */
1715 high_output
|= 0x08;
1717 /* initialize high port */
1718 buf
[0] = 0x82; /* command "set data bits high byte" */
1719 buf
[1] = high_output
; /* value */
1720 buf
[2] = high_direction
; /* all outputs (xRST and xRSTnOE) */
1721 DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
1723 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
1725 ERROR("couldn't initialize FT2232 with 'JTAGkey' layout");
1726 return ERROR_JTAG_INIT_FAILED
;
1732 int m5960_init(void)
1738 low_direction
= 0xfb;
1740 /* initialize low byte for jtag */
1741 buf
[0] = 0x80; /* command "set data bits low byte" */
1742 buf
[1] = low_output
; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
1743 buf
[2] = low_direction
; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE[12]=out, n[ST]srst=out */
1744 DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
1746 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
1748 ERROR("couldn't initialize FT2232 with 'm5960' layout");
1749 return ERROR_JTAG_INIT_FAILED
;
1753 nTRSTnOE
= 0x0; /* not output enable for nTRST */
1755 nSRSTnOE
= 0x00; /* no output enable for nSRST */
1758 high_direction
= 0x0c;
1760 /* turn red LED1 on, LED2 off */
1761 high_output
|= 0x08;
1763 /* initialize high port */
1764 buf
[0] = 0x82; /* command "set data bits high byte" */
1765 buf
[1] = high_output
; /* value */
1766 buf
[2] = high_direction
; /* all outputs (xRST and xRSTnOE) */
1767 DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
1769 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
1771 ERROR("couldn't initialize FT2232 with 'm5960' layout");
1772 return ERROR_JTAG_INIT_FAILED
;
1778 int turtle_init(void)
1784 low_direction
= 0x5b;
1786 /* initialize low byte for jtag */
1787 buf
[0] = 0x80; /* command "set data bits low byte" */
1788 buf
[1] = low_output
; /* value (TMS=1,TCK=0, TDI=0, nOE=0) */
1789 buf
[2] = low_direction
; /* dir (output=1), TCK/TDI/TMS=out, TDO=in, nOE=out */
1790 DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
1792 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
1794 ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
1795 return ERROR_JTAG_INIT_FAILED
;
1801 high_direction
= 0x0C;
1803 /* initialize high port */
1804 buf
[0] = 0x82; /* command "set data bits high byte" */
1805 buf
[1] = high_output
;
1806 buf
[2] = high_direction
;
1807 DEBUG("%2.2x %2.2x %2.2x", buf
[0], buf
[1], buf
[2]);
1809 if (((ft2232_write(buf
, 3, &bytes_written
)) != ERROR_OK
) || (bytes_written
!= 3))
1811 ERROR("couldn't initialize FT2232 with 'turtelizer2' layout");
1812 return ERROR_JTAG_INIT_FAILED
;
1818 void olimex_jtag_blink(void)
1820 /* Olimex ARM-USB-OCD has a LED connected to ACBUS3
1821 * ACBUS3 is bit 3 of the GPIOH port
1823 if (high_output
& 0x08)
1825 /* set port pin high */
1826 high_output
&= 0x07;
1830 /* set port pin low */
1831 high_output
|= 0x08;
1835 BUFFER_ADD
= high_output
;
1836 BUFFER_ADD
= high_direction
;
1839 void turtle_jtag_blink(void)
1842 * Turtelizer2 has two LEDs connected to ACBUS2 and ACBUS3
1844 if (high_output
& 0x08)
1854 BUFFER_ADD
= high_output
;
1855 BUFFER_ADD
= high_direction
;
1859 int ft2232_quit(void)
1861 #if BUILD_FT2232_FTD2XX == 1
1864 status
= FT_Close(ftdih
);
1865 #elif BUILD_FT2232_LIBFTDI == 1
1866 ftdi_disable_bitbang(&ftdic
);
1868 ftdi_usb_close(&ftdic
);
1870 ftdi_deinit(&ftdic
);
1873 free(ft2232_buffer
);
1878 int ft2232_handle_device_desc_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1882 ft2232_device_desc
= strdup(args
[0]);
1886 ERROR("expected exactly one argument to ft2232_device_desc <description>");
1892 int ft2232_handle_serial_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1896 ft2232_serial
= strdup(args
[0]);
1900 ERROR("expected exactly one argument to ft2232_serial <serial-number>");
1906 int ft2232_handle_layout_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1911 ft2232_layout
= malloc(strlen(args
[0]) + 1);
1912 strcpy(ft2232_layout
, args
[0]);
1917 int ft2232_handle_vid_pid_command(struct command_context_s
*cmd_ctx
, char *cmd
, char **args
, int argc
)
1921 if (argc
> MAX_USB_IDS
*2) {
1922 WARNING("ignoring extra IDs in ft2232_vid_pid "
1923 "(maximum is %d pairs)", MAX_USB_IDS
);
1924 argc
= MAX_USB_IDS
*2;
1926 if (argc
< 2 || (argc
& 1))
1928 WARNING("incomplete ft2232_vid_pid configuration directive");
1933 for (i
= 0; i
+1 < argc
; i
+= 2) {
1934 ft2232_vid
[i
>> 1] = strtol(args
[i
], NULL
, 0);
1935 ft2232_pid
[i
>> 1] = strtol(args
[i
+1], NULL
, 0);
1938 * Explicitly terminate, in case there are multiples instances of
1941 ft2232_vid
[i
>> 1] = ft2232_pid
[i
>> 1] = 0;
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