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Add complete JTAG debug logging. 

Sample output, with default_interface_jtag_execute_queue replaced by
dijeq to satisfy commit message line length check:
Debug: 646 18 core.c:847 dijeq(): JTAG IR SCAN to RUN/IDLE
Debug: 647 18 core.c:852 dijeq():   5b out: 11
Debug: 648 18 core.c:847 dijeq(): JTAG DR SCAN to RUN/IDLE
Debug: 649 18 core.c:852 dijeq():   40b out: 4400000001
Debug: 650 18 core.c:857 dijeq():   40b in: 4400000000

Signed-off-by: Tim Newsome <tim@sifive.com>
Change-Id: I014e9e3a77755413b36edfcede2ab8f6aa08061b
Reviewed-on: http://openocd.zylin.com/4451
Tested-by: jenkins
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
This commit is contained in:
Tim Newsome 2018-03-06 13:13:35 -08:00 committed by Spencer Oliver
parent d214cadfef
commit 462c012066
1 changed files with 71 additions and 2 deletions
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73
src/jtag/core.c
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@ -836,7 +836,75 @@ int default_interface_jtag_execute_queue(void)
return ERROR_FAIL; return ERROR_FAIL;
} }
return jtag->execute_queue(); int result = jtag->execute_queue();
#if !BUILD_ZY1000
/* Only build this if we use a regular driver with a command queue.
* Otherwise jtag_command_queue won't be found at compile/link time. Its
* definition is in jtag/commands.c, which is only built/linked by
* jtag/Makefile.am if MINIDRIVER_DUMMY || !MINIDRIVER, but those variables
* aren't accessible here. */
struct jtag_command *cmd = jtag_command_queue;
while (debug_level >= LOG_LVL_DEBUG && cmd) {
switch (cmd->type) {
case JTAG_SCAN:
LOG_DEBUG_IO("JTAG %s SCAN to %s",
cmd->cmd.scan->ir_scan ? "IR" : "DR",
tap_state_name(cmd->cmd.scan->end_state));
for (int i = 0; i < cmd->cmd.scan->num_fields; i++) {
struct scan_field *field = cmd->cmd.scan->fields + i;
if (field->out_value) {
char *str = buf_to_str(field->out_value, field->num_bits, 16);
LOG_DEBUG_IO(" %db out: %s", field->num_bits, str);
free(str);
}
if (field->in_value) {
char *str = buf_to_str(field->in_value, field->num_bits, 16);
LOG_DEBUG_IO(" %db in: %s", field->num_bits, str);
free(str);
}
}
break;
case JTAG_TLR_RESET:
LOG_DEBUG_IO("JTAG TLR RESET to %s",
tap_state_name(cmd->cmd.statemove->end_state));
break;
case JTAG_RUNTEST:
LOG_DEBUG_IO("JTAG RUNTEST %d cycles to %s",
cmd->cmd.runtest->num_cycles,
tap_state_name(cmd->cmd.runtest->end_state));
break;
case JTAG_RESET:
{
const char *reset_str[3] = {
"leave", "deassert", "assert"
};
LOG_DEBUG_IO("JTAG RESET %s TRST, %s SRST",
reset_str[cmd->cmd.reset->trst + 1],
reset_str[cmd->cmd.reset->srst + 1]);
}
break;
case JTAG_PATHMOVE:
LOG_DEBUG_IO("JTAG PATHMOVE (TODO)");
break;
case JTAG_SLEEP:
LOG_DEBUG_IO("JTAG SLEEP (TODO)");
break;
case JTAG_STABLECLOCKS:
LOG_DEBUG_IO("JTAG STABLECLOCKS (TODO)");
break;
case JTAG_TMS:
LOG_DEBUG_IO("JTAG TMS (TODO)");
break;
default:
LOG_ERROR("Unknown JTAG command: %d", cmd->type);
break;
}
cmd = cmd->next;
}
#endif
return result;
} }
void jtag_execute_queue_noclear(void) void jtag_execute_queue_noclear(void)
@ -1107,7 +1175,8 @@ static int jtag_examine_chain(void)
if ((idcode & 1) == 0) { if ((idcode & 1) == 0) {
/* Zero for LSB indicates a device in bypass */ /* Zero for LSB indicates a device in bypass */
LOG_INFO("TAP %s does not have IDCODE", tap->dotted_name); LOG_INFO("TAP %s does not have valid IDCODE (idcode=0x%x)",
tap->dotted_name, idcode);
tap->hasidcode = false; tap->hasidcode = false;
tap->idcode = 0; tap->idcode = 0;