jtag/tcl help/usage fixups
The usual: expand several helptexts to be more correct and to use full sentences; make the usage messages use the same EBNF as the User's Guide; use function names for their addresses. Also add a comment about that odd jtag_command_handlers_to_move[] thing. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>__archive__
David Brownell
parent
5cb1dcfad3
commit
ab4307e693
189
src/jtag/tcl.c
189
src/jtag/tcl.c
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@ -269,26 +269,39 @@ static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const
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return JIM_OK;
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}
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/* REVISIT Just what about these should "move" ... ?
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* These registrations, into the main JTAG table?
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*
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* There's a minor compatibility issue, these all show up twice;
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* that's not desirable:
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* - jtag drscan ... NOT DOCUMENTED!
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* - drscan ...
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*
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* The "irscan" command (for example) doesn't show twice.
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*/
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static const struct command_registration jtag_command_handlers_to_move[] = {
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{
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.name = "drscan",
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.mode = COMMAND_EXEC,
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.jim_handler = &Jim_Command_drscan,
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.help = "execute DR scan <device> "
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"<num_bits> <value> <num_bits1> <value2> ...",
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.jim_handler = Jim_Command_drscan,
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.help = "Execute Data Register (DR) scan for one TAP. "
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"Other TAPs must be in BYPASS mode.",
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.usage = "tap_name [num_bits value]* ['-endstate' state_name]",
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},
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{
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.name = "flush_count",
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.mode = COMMAND_EXEC,
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.jim_handler = &Jim_Command_flush_count,
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.help = "returns number of times the JTAG queue has been flushed",
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.jim_handler = Jim_Command_flush_count,
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.help = "Returns the number of times the JTAG queue "
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"has been flushed.",
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},
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{
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.name = "pathmove",
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.mode = COMMAND_EXEC,
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.jim_handler = &Jim_Command_pathmove,
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.usage = "<state1>,<state2>,<state3>... ",
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.help = "move JTAG to state1 then to state2, state3, etc.",
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.jim_handler = Jim_Command_pathmove,
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.usage = "start_state state1 [state2 [state3 ...]]",
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.help = "Move JTAG state machine from current state "
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"(start_state) to state1, then state2, state3, etc.",
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},
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COMMAND_REGISTRATION_DONE
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};
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@ -658,7 +671,8 @@ static void jtag_tap_handle_event(struct jtag_tap *tap, enum jtag_event e)
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}
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}
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static int jim_jtag_interface(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
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static int
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jim_jtag_interface(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
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{
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Jim_GetOptInfo goi;
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Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
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@ -845,73 +859,88 @@ static const struct command_registration jtag_subcommand_handlers[] = {
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{
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.name = "init",
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.mode = COMMAND_ANY,
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.handler = &handle_jtag_init_command,
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.handler = handle_jtag_init_command,
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.help = "initialize jtag scan chain",
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},
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{
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.name = "interface",
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.mode = COMMAND_ANY,
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.jim_handler = &jim_jtag_interface,
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.help = "Returns the selected interface",
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.jim_handler = jim_jtag_interface,
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.help = "Returns the name of the currently selected interface.",
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},
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{
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.name = "arp_init",
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.mode = COMMAND_ANY,
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.jim_handler = &jim_jtag_arp_init,
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.jim_handler = jim_jtag_arp_init,
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.help = "Validates JTAG scan chain against the list of "
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"declared TAPs using just the four standard JTAG "
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"signals.",
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},
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{
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.name = "arp_init-reset",
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.mode = COMMAND_ANY,
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.jim_handler = &jim_jtag_arp_init_reset,
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.jim_handler = jim_jtag_arp_init_reset,
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.help = "Uses TRST and SRST to try resetting everything on "
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"the JTAG scan chain, then performs 'jtag arp_init'."
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},
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{
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.name = "newtap",
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.mode = COMMAND_CONFIG,
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.jim_handler = &jim_jtag_newtap,
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.help = "Create a new TAP instance",
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.usage = "<name> <type> -irlen <count> [-ircapture <count>] "
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"[-irmask <count>] [-enable|-disable]",
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.jim_handler = jim_jtag_newtap,
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.help = "Create a new TAP instance named basename.tap_type, "
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"and appends it to the scan chain.",
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.usage = "basename tap_type '-irlen' count "
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"['-enable'|'-disable'] "
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"['-expected_id' number] "
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"['-ignore-version'] "
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"['-ircapture' number] "
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"['-mask' number] ",
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},
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{
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.name = "tapisenabled",
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.mode = COMMAND_EXEC,
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.jim_handler = &jim_jtag_tap_enabler,
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.help = "Returns a integer indicating TAP state (0/1)",
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.usage = "<name>",
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.jim_handler = jim_jtag_tap_enabler,
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.help = "Returns a Tcl boolean (0/1) indicating whether "
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"the TAP is enabled (1) or not (0).",
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.usage = "tap_name",
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},
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{
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.name = "tapenable",
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.mode = COMMAND_EXEC,
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.jim_handler = &jim_jtag_tap_enabler,
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.help = "Enable the specified TAP",
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.usage = "<name>",
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.jim_handler = jim_jtag_tap_enabler,
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.help = "Try to enable the specified TAP using the "
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"'tap-enable' TAP event.",
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.usage = "tap_name",
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},
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{
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.name = "tapdisable",
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.mode = COMMAND_EXEC,
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.jim_handler = &jim_jtag_tap_enabler,
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.help = "Enable the specified TAP",
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.usage = "<name>",
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.jim_handler = jim_jtag_tap_enabler,
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.help = "Try to disable the specified TAP using the "
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"'tap-disable' TAP event.",
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.usage = "tap_name",
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},
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{
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.name = "configure",
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.mode = COMMAND_EXEC,
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.jim_handler = &jim_jtag_configure,
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.help = "Enable the specified TAP",
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.usage = "<name> [<key> <value> ...]",
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.jim_handler = jim_jtag_configure,
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.help = "Provide a Tcl handler for the specified "
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"TAP event.",
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.usage = "tap_name '-event' event_name handler",
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},
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{
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.name = "cget",
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.mode = COMMAND_EXEC,
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.jim_handler = &jim_jtag_configure,
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.help = "Enable the specified TAP",
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.usage = "<name> [<key> <value> ...]",
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.jim_handler = jim_jtag_configure,
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.help = "Return any Tcl handler for the specified "
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"TAP event.",
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.usage = "tap_name '-event' event_name",
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},
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{
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.name = "names",
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.mode = COMMAND_ANY,
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.jim_handler = &jim_jtag_names,
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.help = "Returns list of all JTAG tap names",
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.jim_handler = jim_jtag_names,
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.help = "Returns list of all JTAG tap names.",
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},
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{
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.chain = jtag_command_handlers_to_move,
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@ -1574,34 +1603,38 @@ COMMAND_HANDLER(handle_tms_sequence_command)
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static const struct command_registration jtag_command_handlers[] = {
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{
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.name = "interface",
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.handler = &handle_interface_command,
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.handler = handle_interface_command,
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.mode = COMMAND_CONFIG,
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.help = "select a JTAG interface",
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.usage = "<driver_name>",
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.help = "Select a JTAG interface",
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.usage = "driver_name",
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},
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{
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.name = "interface_list",
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.handler = &handle_interface_list_command,
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.handler = handle_interface_list_command,
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.mode = COMMAND_ANY,
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.help = "list all built-in interfaces",
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.help = "List all built-in interfaces",
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},
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{
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.name = "jtag_khz",
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.handler = &handle_jtag_khz_command,
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.handler = handle_jtag_khz_command,
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.mode = COMMAND_ANY,
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.help = "set maximum jtag speed (if supported)",
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.usage = "<khz:0=rtck>",
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.help = "With an argument, change to the specified maximum "
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"jtag speed. Pass 0 to require adaptive clocking. "
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"With or without argument, display current setting.",
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.usage = "[khz]",
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},
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{
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.name = "jtag_rclk",
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.handler = &handle_jtag_rclk_command,
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.handler = handle_jtag_rclk_command,
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.mode = COMMAND_ANY,
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.help = "set JTAG speed to RCLK or use fallback speed",
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.usage = "<fallback_speed_khz>",
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.help = "With an argument, change to to use adaptive clocking "
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"if possible; else to use the fallback speed. "
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"With or without argument, display current setting.",
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.usage = "[fallback_speed_khz]",
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},
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{
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.name = "reset_config",
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.handler = &handle_reset_config_command,
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.handler = handle_reset_config_command,
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.mode = COMMAND_ANY,
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.help = "configure JTAG reset behavior",
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.usage = "[none|trst_only|srst_only|trst_and_srst] "
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@ -1612,79 +1645,87 @@ static const struct command_registration jtag_command_handlers[] = {
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},
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{
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.name = "jtag_nsrst_delay",
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.handler = &handle_jtag_nsrst_delay_command,
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.handler = handle_jtag_nsrst_delay_command,
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.mode = COMMAND_ANY,
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.help = "delay after deasserting srst in ms",
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.usage = "<ms>",
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.usage = "[milliseconds]",
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},
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{
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.name = "jtag_ntrst_delay",
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.handler = &handle_jtag_ntrst_delay_command,
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.handler = handle_jtag_ntrst_delay_command,
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.mode = COMMAND_ANY,
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.help = "delay after deasserting trst in ms",
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.usage = "<ms>"
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.usage = "[milliseconds]",
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},
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{
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.name = "jtag_nsrst_assert_width",
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.handler = &handle_jtag_nsrst_assert_width_command,
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.handler = handle_jtag_nsrst_assert_width_command,
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.mode = COMMAND_ANY,
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.help = "delay after asserting srst in ms",
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.usage = "<ms>"
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.usage = "[milliseconds]",
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},
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{
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.name = "jtag_ntrst_assert_width",
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.handler = &handle_jtag_ntrst_assert_width_command,
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.handler = handle_jtag_ntrst_assert_width_command,
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.mode = COMMAND_ANY,
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.help = "delay after asserting trst in ms",
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.usage = "<ms>"
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.usage = "[milliseconds]",
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},
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{
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.name = "scan_chain",
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.handler = &handle_scan_chain_command,
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.handler = handle_scan_chain_command,
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.mode = COMMAND_EXEC,
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.help = "print current scan chain configuration",
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},
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{
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.name = "jtag_reset",
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.handler = &handle_jtag_reset_command,
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.handler = handle_jtag_reset_command,
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.mode = COMMAND_EXEC,
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.help = "toggle reset lines",
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.usage = "<trst> <srst>",
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.help = "Set reset line values. Value '1' is active, "
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"value '0' is inactive.",
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.usage = "trst_active srst_active",
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},
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{
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.name = "runtest",
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.handler = &handle_runtest_command,
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.handler = handle_runtest_command,
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.mode = COMMAND_EXEC,
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.help = "move to Run-Test/Idle, and execute <num_cycles>",
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.usage = "<num_cycles>"
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.help = "Move to Run-Test/Idle, and issue TCK for num_cycles.",
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.usage = "num_cycles"
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},
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{
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.name = "irscan",
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.handler = &handle_irscan_command,
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.handler = handle_irscan_command,
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.mode = COMMAND_EXEC,
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.help = "execute IR scan",
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.usage = "<device> <instr> [dev2] [instr2] ...",
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.help = "Execute Instruction Register (DR) scan. The "
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"specified opcodes are put into each TAP's IR, "
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"and other TAPs are put in BYPASS.",
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.usage = "[tap_name instruction]* ['-endstate' state_name]",
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},
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{
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.name = "verify_ircapture",
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.handler = &handle_verify_ircapture_command,
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.handler = handle_verify_ircapture_command,
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.mode = COMMAND_ANY,
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.help = "verify value captured during Capture-IR",
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.usage = "<enable | disable>",
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.help = "Display or assign flag controlling whether to "
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"verify values captured during Capture-IR.",
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.usage = "['enable'|'disable']",
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},
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{
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.name = "verify_jtag",
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.handler = &handle_verify_jtag_command,
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.handler = handle_verify_jtag_command,
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.mode = COMMAND_ANY,
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.help = "verify value capture",
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.usage = "<enable | disable>",
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.help = "Display or assign flag controlling whether to "
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"verify values captured during IR and DR scans.",
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.usage = "['enable'|'disable']",
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},
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{
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.name = "tms_sequence",
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.handler = &handle_tms_sequence_command,
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.handler = handle_tms_sequence_command,
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.mode = COMMAND_ANY,
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.help = "choose short(default) or long tms_sequence",
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.usage = "<short | long>",
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.help = "Display or change what style TMS sequences to use "
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"for JTAG state transitions: short (default) or "
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"long. Only for working around JTAG bugs.",
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/* Specifically for working around DRIVER bugs... */
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.usage = "['short'|'long']",
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},
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{
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.name = "jtag",
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