diff options
Diffstat (limited to 'src/jtag/jtag.c')
| -rw-r--r-- | src/jtag/jtag.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/src/jtag/jtag.c b/src/jtag/jtag.c index 8bdcfa85..649ead46 100644 --- a/src/jtag/jtag.c +++ b/src/jtag/jtag.c @@ -43,7 +43,7 @@ #endif #include <assert.h> - +int jtag_flush_queue_count; /* count # of flushes for profiling / debugging purposes */ /* note that this is not marked as static as it must be available from outside jtag.c for those that implement the jtag_xxx() minidriver layer @@ -243,6 +243,7 @@ static int handle_jtag_reset_command(struct command_context_s *cmd_ctx, char *cm static int handle_runtest_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); static int handle_irscan_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *argv); +static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args); static int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc); @@ -1446,6 +1447,11 @@ int MINIDRIVER(interface_jtag_execute_queue)(void) void jtag_execute_queue_noclear(void) { + /* each flush can take as much as 1-2ms on high bandwidth low latency interfaces. + * E.g. a JTAG over TCP/IP or USB.... + */ + jtag_flush_queue_count++; + int retval=interface_jtag_execute_queue(); /* we keep the first error */ if ((jtag_error==ERROR_OK)&&(retval!=ERROR_OK)) @@ -2180,6 +2186,7 @@ int jtag_register_commands(struct command_context_s *cmd_ctx) register_command(cmd_ctx, NULL, "irscan", handle_irscan_command, COMMAND_EXEC, "execute IR scan <device> <instr> [dev2] [instr2] ..."); register_jim(cmd_ctx, "drscan", Jim_Command_drscan, "execute DR scan <device> <num_bits> <value> <num_bits1> <value2> ..."); + register_jim(cmd_ctx, "flush_count", Jim_Command_flush_count, "returns number of times the JTAG queue has been flushed"); register_command(cmd_ctx, NULL, "verify_ircapture", handle_verify_ircapture_command, COMMAND_ANY, "verify value captured during Capture-IR <enable|disable>"); @@ -2945,6 +2952,15 @@ static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args return JIM_OK; } + +static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args) +{ + Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_flush_queue_count)); + + return JIM_OK; +} + + static int handle_verify_ircapture_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc) { if (argc == 1) |