Committed.
Does OMAP/BeagleBoard need this?
This "pathmove" command is ready for testing & feedback.
I've done some quick smoketests and it reveals some interesting
points in terms of where error checking should go... Discussed
yesterday.
No patch to openocd.texi, because I believe that text should
be written after some discussion/feedback and testing is complete.
The pathmove command is intended to be used together with
dr/irscan in reset scripts.
> pathmove run/idle drselect drcapture drshift drpause
BUG: DRSHIFT -> DRPAUSE isn't a valid TAP transition
Runtime error, file "command.c", line 453:
pathmove: failed
> pathmove run/idle drselect drcapture drshift drexit drpause
Runtime error, file "command.c", line 453:
endstate: drexit invalid
> pathmove run/idle drselect drcapture drshift exitdr drpause
Runtime error, file "command.c", line 453:
endstate: exitdr invalid
> pathmove run/idle drselect drcapture drshift drexit1 drpause
> pathmove run/idle drselect drcapture drshift drexit1 drpause
> pathmove run/idle drselect drcapture drshift drexit1 drpause
--
Øyvind Harboe
Embedded software and hardware consulting services
http://consulting.zylin.com
### Eclipse Workspace Patch 1.0
#P openocd
Index: src/jtag/tcl.c
===================================================================
--- src/jtag/tcl.c (revision 2179)
+++ src/jtag/tcl.c (working copy)
@@ -189,6 +189,7 @@
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_pathmove(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);
@@ -658,6 +659,7 @@
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_jim(cmd_ctx, "pathmove", Jim_Command_pathmove, "move JTAG to
state1 then to state2, state3, etc. <state1>,<state2>,<stat3>...");
register_command(cmd_ctx, NULL, "verify_ircapture",
handle_verify_ircapture_command,
COMMAND_ANY, "verify value captured during Capture-IR
<enable|disable>");
@@ -1308,6 +1310,48 @@
}
+static int Jim_Command_pathmove(Jim_Interp *interp, int argc, Jim_Obj *const
*args)
+{
+ tap_state_t states[8];
+
+ if ((argc < 2) || ((size_t)argc > (sizeof(states)/sizeof(*states)+1)))
+ {
+ Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
+ return JIM_ERR;
+ }
+
+ int i;
+ for (i=0; i<argc-1; i++)
+ {
+ const char *cp;
+ cp = Jim_GetString( args[i+1], NULL );
+ states[i] = tap_state_by_name(cp);
+ if( states[i] < 0 )
+ {
+ /* update the error message */
+ Jim_SetResult_sprintf(interp,"endstate: %s invalid", cp
);
+ return JIM_ERR;
+ }
+ }
+
+ if ((jtag_add_statemove(states[0]) != ERROR_OK) || (
jtag_execute_queue()!= ERROR_OK))
+ {
+ Jim_SetResultString(interp, "pathmove: jtag execute failed",-1);
+ return JIM_ERR;
+ }
+
+ jtag_add_pathmove(argc-2, states+1);
+
+ if (jtag_execute_queue()!= ERROR_OK)
+ {
+ Jim_SetResultString(interp, "pathmove: failed",-1);
+ return JIM_ERR;
+ }
+
+ 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_get_flush_queue_count()));
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