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Diffstat (limited to 'src/jtag/ftd2xx.c')
-rw-r--r--src/jtag/ftd2xx.c134
1 files changed, 112 insertions, 22 deletions
diff --git a/src/jtag/ftd2xx.c b/src/jtag/ftd2xx.c
index a14d0391..e8d29a88 100644
--- a/src/jtag/ftd2xx.c
+++ b/src/jtag/ftd2xx.c
@@ -17,17 +17,23 @@
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
+#ifdef HAVE_CONFIG_H
#include "config.h"
+#endif
+
#if IS_CYGWIN == 1
#include "windows.h"
#undef ERROR
#endif
+#include "replacements.h"
+
/* project specific includes */
#include "log.h"
#include "types.h"
#include "jtag.h"
#include "configuration.h"
+#include "time_support.h"
/* system includes */
#include <string.h>
@@ -222,6 +228,7 @@ int ftd2xx_send_and_recv(jtag_command_t *first, jtag_command_t *last)
#ifdef _DEBUG_USB_IO_
struct timeval start, inter, inter2, end;
+ struct timeval d_inter, d_inter2, d_end;
#endif
#ifdef _DEBUG_USB_COMMS_
@@ -272,9 +279,11 @@ int ftd2xx_send_and_recv(jtag_command_t *first, jtag_command_t *last)
#ifdef _DEBUG_USB_IO_
gettimeofday(&end, NULL);
- INFO("inter: %i.%i, inter2: %i.%i end: %i.%i", inter.tv_sec - start.tv_sec, inter.tv_usec - start.tv_usec,
- inter2.tv_sec - start.tv_sec, inter2.tv_usec - start.tv_usec,
- end.tv_sec - start.tv_sec, end.tv_usec - start.tv_usec);
+ timeval_subtract(&d_inter, &inter, &start);
+ timeval_subtract(&d_inter2, &inter2, &start);
+ timeval_subtract(&d_end, &end, &start);
+
+ 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);
#endif
@@ -324,6 +333,46 @@ int ftd2xx_send_and_recv(jtag_command_t *first, jtag_command_t *last)
return ERROR_OK;
}
+void ftd2xx_add_pathmove(pathmove_command_t *cmd)
+{
+ int num_states = cmd->num_states;
+ u8 tms_byte;
+ int state_count;
+
+ state_count = 0;
+ while (num_states)
+ {
+ tms_byte = 0x0;
+ int bit_count = 0;
+
+ /* command "Clock Data to TMS/CS Pin (no Read)" */
+ BUFFER_ADD = 0x4b;
+ /* number of states remaining */
+ BUFFER_ADD = (num_states % 7) - 1;
+
+ while (num_states % 7)
+ {
+ if (tap_transitions[cur_state].low == cmd->path[state_count])
+ buf_set_u32(&tms_byte, bit_count++, 1, 0x0);
+ else if (tap_transitions[cur_state].high == cmd->path[state_count])
+ buf_set_u32(&tms_byte, bit_count++, 1, 0x1);
+ else
+ {
+ ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[cmd->path[state_count]]);
+ exit(-1);
+ }
+
+ cur_state = cmd->path[state_count];
+ state_count++;
+ num_states--;
+ }
+
+ BUFFER_ADD = tms_byte;
+ }
+
+ end_state = cur_state;
+}
+
void ftd2xx_add_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size)
{
int num_bytes = (scan_size + 7) / 8;
@@ -331,23 +380,26 @@ void ftd2xx_add_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size
int cur_byte = 0;
int last_bit;
- /* command "Clock Data to TMS/CS Pin (no Read)" */
- BUFFER_ADD = 0x4b;
- /* scan 7 bit */
- BUFFER_ADD = 0x6;
- /* TMS data bits */
- if (ir_scan)
- {
- BUFFER_ADD = TAP_MOVE(cur_state, TAP_SI);
- cur_state = TAP_SI;
- }
- else
+ if ((!ir_scan && (cur_state != TAP_SD)) || (ir_scan && (cur_state != TAP_SI)))
{
- BUFFER_ADD = TAP_MOVE(cur_state, TAP_SD);
- cur_state = TAP_SD;
+ /* command "Clock Data to TMS/CS Pin (no Read)" */
+ BUFFER_ADD = 0x4b;
+ /* scan 7 bit */
+ BUFFER_ADD = 0x6;
+ /* TMS data bits */
+ if (ir_scan)
+ {
+ BUFFER_ADD = TAP_MOVE(cur_state, TAP_SI);
+ cur_state = TAP_SI;
+ }
+ else
+ {
+ BUFFER_ADD = TAP_MOVE(cur_state, TAP_SD);
+ cur_state = TAP_SD;
+ }
+ //DEBUG("added TMS scan (no read)");
}
- //DEBUG("added TMS scan (no read)");
-
+
/* add command for complete bytes */
if (num_bytes > 1)
{
@@ -370,7 +422,7 @@ void ftd2xx_add_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size
//DEBUG("added TDI bytes (i %i)", num_bytes);
}
BUFFER_ADD = (num_bytes-2) & 0xff;
- BUFFER_ADD = (num_bytes >> 8) & 0xff;
+ BUFFER_ADD = ((num_bytes-2) >> 8) & 0xff;
}
if (type != SCAN_IN)
{
@@ -440,15 +492,23 @@ void ftd2xx_add_scan(int ir_scan, enum scan_type type, u8 *buffer, int scan_size
int ftd2xx_predict_scan_out(int scan_size, enum scan_type type)
{
- int predicted_size = 6;
+ int predicted_size = 3;
+
+ if (cur_state != TAP_SD)
+ predicted_size += 3;
+
if (type == SCAN_IN) /* only from device to host */
{
+ /* complete bytes */
predicted_size += (CEIL(scan_size, 8) > 1) ? 3 : 0;
+ /* remaining bits - 1 (up to 7) */
predicted_size += ((scan_size - 1) % 8) ? 2 : 0;
}
else /* host to device, or bidirectional */
{
+ /* complete bytes */
predicted_size += (CEIL(scan_size, 8) > 1) ? (CEIL(scan_size, 8) + 3 - 1) : 0;
+ /* remaining bits -1 (up to 7) */
predicted_size += ((scan_size - 1) % 8) ? 3 : 0;
}
@@ -588,7 +648,10 @@ int ftd2xx_execute_queue()
layout->reset(cmd->cmd.reset->trst, cmd->cmd.reset->srst);
require_send = 1;
-
+
+#ifdef _DEBUG_JTAG_IO_
+ DEBUG("trst: %i, srst: %i", cmd->cmd.reset->trst, cmd->cmd.reset->srst);
+#endif
break;
case JTAG_RUNTEST:
/* only send the maximum buffer size that FT2232C can handle */
@@ -644,6 +707,9 @@ int ftd2xx_execute_queue()
//DEBUG("added TMS scan (no read)");
}
require_send = 1;
+#ifdef _DEBUG_JTAG_IO_
+ DEBUG("runtest: %i, end in %i", cmd->cmd.runtest->num_cycles, end_state);
+#endif
break;
case JTAG_STATEMOVE:
/* only send the maximum buffer size that FT2232C can handle */
@@ -665,6 +731,24 @@ int ftd2xx_execute_queue()
//DEBUG("added TMS scan (no read)");
cur_state = end_state;
require_send = 1;
+#ifdef _DEBUG_JTAG_IO_
+ DEBUG("statemove: %i", end_state);
+#endif
+ break;
+ case JTAG_PATHMOVE:
+ /* only send the maximum buffer size that FT2232C can handle */
+ predicted_size = 3 * CEIL(cmd->cmd.pathmove->num_states, 7);
+ if (ftd2xx_buffer_size + predicted_size + 1 > FTD2XX_BUFFER_SIZE)
+ {
+ ftd2xx_send_and_recv(first_unsent, cmd);
+ require_send = 0;
+ first_unsent = cmd;
+ }
+ ftd2xx_add_pathmove(cmd->cmd.pathmove);
+ require_send = 1;
+#ifdef _DEBUG_JTAG_IO_
+ DEBUG("pathmove: %i states, end in %i", cmd->cmd.pathmove->num_states, cmd->cmd.pathmove->path[cmd->cmd.pathmove->num_states - 1]);
+#endif
break;
case JTAG_SCAN:
scan_size = jtag_build_buffer(cmd->cmd.scan, &buffer);
@@ -685,11 +769,17 @@ int ftd2xx_execute_queue()
require_send = 1;
if (buffer)
free(buffer);
+#ifdef _DEBUG_JTAG_IO_
+ DEBUG("%s scan, %i bit, end in %i", (cmd->cmd.scan->ir_scan) ? "IR" : "DR", scan_size, end_state);
+#endif
break;
case JTAG_SLEEP:
ftd2xx_send_and_recv(first_unsent, cmd);
first_unsent = cmd->next;
jtag_sleep(cmd->cmd.sleep->us);
+#ifdef _DEBUG_JTAG_IO_
+ DEBUG("sleep %i usec", cmd->cmd.sleep->us);
+#endif
break;
default:
ERROR("BUG: unknown JTAG command type encountered");
@@ -740,7 +830,7 @@ int ftd2xx_init(void)
ftd2xx_device_desc = "Dual RS232";
}
-#if IS_CYGWIN != 1
+#if IS_WIN32 == 0
/* Add JTAGkey Vid/Pid to the linux driver */
if ((status = FT_SetVIDPID(ftd2xx_vid, ftd2xx_pid)) != FT_OK)
{
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-03 03:46:20 +0000