begin moving JTAG jim handlers/helpers
Moves the tertiary jim handlers and required static helpers to the top of tcl.c, defining them in a new registration array that is chained in both the top-level context and under the jtag command. The top-level commands can be removed at some point in the future to reduce clutter.
This commit is contained in:
Zachary T Welch
parent
c4992c6d86
commit
0377e5b54d
463
src/jtag/tcl.c
463
src/jtag/tcl.c
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@ -51,6 +51,238 @@ static const Jim_Nvp nvp_jtag_tap_event[] = {
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extern struct jtag_interface *jtag_interface;
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static bool scan_is_safe(tap_state_t state)
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{
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switch (state)
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{
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case TAP_RESET:
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case TAP_IDLE:
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case TAP_DRPAUSE:
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case TAP_IRPAUSE:
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return true;
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default:
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return false;
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}
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}
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static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
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{
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int retval;
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struct scan_field *fields;
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int num_fields;
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int field_count = 0;
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int i, e;
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struct jtag_tap *tap;
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tap_state_t endstate;
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/* args[1] = device
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* args[2] = num_bits
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* args[3] = hex string
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* ... repeat num bits and hex string ...
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*
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* .. optionally:
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* args[N-2] = "-endstate"
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* args[N-1] = statename
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*/
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if ((argc < 4) || ((argc % 2) != 0))
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{
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Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
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return JIM_ERR;
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}
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endstate = TAP_IDLE;
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script_debug(interp, "drscan", argc, args);
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/* validate arguments as numbers */
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e = JIM_OK;
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for (i = 2; i < argc; i += 2)
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{
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long bits;
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const char *cp;
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e = Jim_GetLong(interp, args[i], &bits);
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/* If valid - try next arg */
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if (e == JIM_OK) {
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continue;
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}
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/* Not valid.. are we at the end? */
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if (((i + 2) != argc)) {
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/* nope, then error */
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return e;
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}
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/* it could be: "-endstate FOO"
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* e.g. DRPAUSE so we can issue more instructions
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* before entering RUN/IDLE and executing them.
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*/
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/* get arg as a string. */
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cp = Jim_GetString(args[i], NULL);
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/* is it the magic? */
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if (0 == strcmp("-endstate", cp)) {
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/* is the statename valid? */
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cp = Jim_GetString(args[i + 1], NULL);
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/* see if it is a valid state name */
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endstate = tap_state_by_name(cp);
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if (endstate < 0) {
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/* update the error message */
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Jim_SetResult_sprintf(interp,"endstate: %s invalid", cp);
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} else {
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if (!scan_is_safe(endstate))
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LOG_WARNING("drscan with unsafe "
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"endstate \"%s\"", cp);
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/* valid - so clear the error */
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e = JIM_OK;
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/* and remove the last 2 args */
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argc -= 2;
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}
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}
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/* Still an error? */
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if (e != JIM_OK) {
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return e; /* too bad */
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}
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} /* validate args */
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tap = jtag_tap_by_jim_obj(interp, args[1]);
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if (tap == NULL) {
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return JIM_ERR;
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}
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num_fields = (argc-2)/2;
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fields = malloc(sizeof(struct scan_field) * num_fields);
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for (i = 2; i < argc; i += 2)
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{
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long bits;
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int len;
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const char *str;
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Jim_GetLong(interp, args[i], &bits);
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str = Jim_GetString(args[i + 1], &len);
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fields[field_count].tap = tap;
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fields[field_count].num_bits = bits;
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fields[field_count].out_value = malloc(DIV_ROUND_UP(bits, 8));
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str_to_buf(str, len, fields[field_count].out_value, bits, 0);
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fields[field_count].in_value = fields[field_count].out_value;
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field_count++;
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}
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jtag_add_dr_scan(num_fields, fields, endstate);
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retval = jtag_execute_queue();
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if (retval != ERROR_OK)
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{
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Jim_SetResultString(interp, "drscan: jtag execute failed",-1);
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return JIM_ERR;
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}
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field_count = 0;
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Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
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for (i = 2; i < argc; i += 2)
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{
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long bits;
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char *str;
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Jim_GetLong(interp, args[i], &bits);
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str = buf_to_str(fields[field_count].in_value, bits, 16);
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free(fields[field_count].out_value);
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Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
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free(str);
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field_count++;
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}
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Jim_SetResult(interp, list);
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free(fields);
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return JIM_OK;
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}
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static int Jim_Command_pathmove(Jim_Interp *interp, int argc, Jim_Obj *const *args)
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{
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tap_state_t states[8];
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if ((argc < 2) || ((size_t)argc > (ARRAY_SIZE(states) + 1)))
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{
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Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
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return JIM_ERR;
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}
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script_debug(interp, "pathmove", argc, args);
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int i;
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for (i = 0; i < argc-1; i++)
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{
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const char *cp;
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cp = Jim_GetString(args[i + 1], NULL);
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states[i] = tap_state_by_name(cp);
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if (states[i] < 0)
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{
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/* update the error message */
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Jim_SetResult_sprintf(interp,"endstate: %s invalid", cp);
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return JIM_ERR;
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}
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}
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if ((jtag_add_statemove(states[0]) != ERROR_OK) || (jtag_execute_queue()!= ERROR_OK))
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{
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Jim_SetResultString(interp, "pathmove: jtag execute failed",-1);
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return JIM_ERR;
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}
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jtag_add_pathmove(argc-2, states + 1);
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if (jtag_execute_queue()!= ERROR_OK)
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{
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Jim_SetResultString(interp, "pathmove: failed",-1);
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return JIM_ERR;
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}
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return JIM_OK;
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}
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static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args)
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{
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script_debug(interp, "flush_count", argc, args);
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Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_get_flush_queue_count()));
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return JIM_OK;
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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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},
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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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},
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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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},
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COMMAND_REGISTRATION_DONE
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};
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enum jtag_tap_cfg_param {
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JCFG_EVENT
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};
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@ -598,6 +830,9 @@ static const struct command_registration jtag_subcommand_handlers[] = {
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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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},
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COMMAND_REGISTRATION_DONE
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};
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@ -1095,20 +1330,6 @@ COMMAND_HANDLER(handle_runtest_command)
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* Not surprisingly, this is the same constraint as SVF; the "irscan"
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* and "drscan" commands are a write-only subset of what SVF provides.
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*/
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static bool scan_is_safe(tap_state_t state)
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{
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switch (state)
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{
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case TAP_RESET:
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case TAP_IDLE:
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case TAP_DRPAUSE:
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case TAP_IRPAUSE:
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return true;
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default:
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return false;
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}
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}
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COMMAND_HANDLER(handle_irscan_command)
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{
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@ -1191,199 +1412,6 @@ error_return:
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return retval;
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}
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static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
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{
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int retval;
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struct scan_field *fields;
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int num_fields;
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int field_count = 0;
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int i, e;
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struct jtag_tap *tap;
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tap_state_t endstate;
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/* args[1] = device
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* args[2] = num_bits
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* args[3] = hex string
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* ... repeat num bits and hex string ...
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*
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* .. optionally:
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* args[N-2] = "-endstate"
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* args[N-1] = statename
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*/
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if ((argc < 4) || ((argc % 2) != 0))
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{
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Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
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return JIM_ERR;
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}
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endstate = TAP_IDLE;
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script_debug(interp, "drscan", argc, args);
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/* validate arguments as numbers */
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e = JIM_OK;
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for (i = 2; i < argc; i += 2)
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{
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long bits;
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const char *cp;
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e = Jim_GetLong(interp, args[i], &bits);
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/* If valid - try next arg */
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if (e == JIM_OK) {
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continue;
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}
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/* Not valid.. are we at the end? */
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if (((i + 2) != argc)) {
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/* nope, then error */
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return e;
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}
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/* it could be: "-endstate FOO"
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* e.g. DRPAUSE so we can issue more instructions
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* before entering RUN/IDLE and executing them.
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*/
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/* get arg as a string. */
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cp = Jim_GetString(args[i], NULL);
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/* is it the magic? */
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if (0 == strcmp("-endstate", cp)) {
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/* is the statename valid? */
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cp = Jim_GetString(args[i + 1], NULL);
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/* see if it is a valid state name */
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endstate = tap_state_by_name(cp);
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if (endstate < 0) {
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/* update the error message */
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Jim_SetResult_sprintf(interp,"endstate: %s invalid", cp);
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} else {
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if (!scan_is_safe(endstate))
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LOG_WARNING("drscan with unsafe "
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"endstate \"%s\"", cp);
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/* valid - so clear the error */
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e = JIM_OK;
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/* and remove the last 2 args */
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argc -= 2;
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}
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}
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/* Still an error? */
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if (e != JIM_OK) {
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return e; /* too bad */
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}
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} /* validate args */
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tap = jtag_tap_by_jim_obj(interp, args[1]);
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if (tap == NULL) {
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return JIM_ERR;
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}
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num_fields = (argc-2)/2;
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fields = malloc(sizeof(struct scan_field) * num_fields);
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for (i = 2; i < argc; i += 2)
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{
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long bits;
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int len;
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const char *str;
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Jim_GetLong(interp, args[i], &bits);
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str = Jim_GetString(args[i + 1], &len);
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fields[field_count].tap = tap;
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fields[field_count].num_bits = bits;
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fields[field_count].out_value = malloc(DIV_ROUND_UP(bits, 8));
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str_to_buf(str, len, fields[field_count].out_value, bits, 0);
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fields[field_count].in_value = fields[field_count].out_value;
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field_count++;
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}
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jtag_add_dr_scan(num_fields, fields, endstate);
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retval = jtag_execute_queue();
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if (retval != ERROR_OK)
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{
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Jim_SetResultString(interp, "drscan: jtag execute failed",-1);
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return JIM_ERR;
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}
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field_count = 0;
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Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
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for (i = 2; i < argc; i += 2)
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{
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long bits;
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char *str;
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Jim_GetLong(interp, args[i], &bits);
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str = buf_to_str(fields[field_count].in_value, bits, 16);
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free(fields[field_count].out_value);
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Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
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free(str);
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field_count++;
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}
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Jim_SetResult(interp, list);
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free(fields);
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return JIM_OK;
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}
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static int Jim_Command_pathmove(Jim_Interp *interp, int argc, Jim_Obj *const *args)
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{
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tap_state_t states[8];
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if ((argc < 2) || ((size_t)argc > (ARRAY_SIZE(states) + 1)))
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{
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Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
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return JIM_ERR;
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}
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script_debug(interp, "pathmove", argc, args);
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int i;
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for (i = 0; i < argc-1; i++)
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{
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const char *cp;
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cp = Jim_GetString(args[i + 1], NULL);
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states[i] = tap_state_by_name(cp);
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if (states[i] < 0)
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{
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/* update the error message */
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Jim_SetResult_sprintf(interp,"endstate: %s invalid", cp);
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return JIM_ERR;
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}
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}
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if ((jtag_add_statemove(states[0]) != ERROR_OK) || (jtag_execute_queue()!= ERROR_OK))
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{
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Jim_SetResultString(interp, "pathmove: jtag execute failed",-1);
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return JIM_ERR;
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}
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jtag_add_pathmove(argc-2, states + 1);
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if (jtag_execute_queue()!= ERROR_OK)
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{
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Jim_SetResultString(interp, "pathmove: failed",-1);
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return JIM_ERR;
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}
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return JIM_OK;
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}
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static int Jim_Command_flush_count(Jim_Interp *interp, int argc, Jim_Obj *const *args)
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{
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script_debug(interp, "flush_count", argc, args);
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Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_get_flush_queue_count()));
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return JIM_OK;
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}
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COMMAND_HANDLER(handle_verify_ircapture_command)
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{
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@ -1560,7 +1588,6 @@ static const struct command_registration jtag_command_handlers[] = {
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.help = "choose short(default) or long tms_sequence",
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.usage = "<short | long>",
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},
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// jim commands
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{
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.name = "jtag",
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.mode = COMMAND_ANY,
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@ -1569,28 +1596,10 @@ static const struct command_registration jtag_command_handlers[] = {
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.chain = jtag_subcommand_handlers,
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},
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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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},
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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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},
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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.",
|
||||
.chain = jtag_command_handlers_to_move,
|
||||
},
|
||||
COMMAND_REGISTRATION_DONE
|
||||
};
|
||||
|
||||
int jtag_register_commands(struct command_context *cmd_ctx)
|
||||
{
|
||||
return register_commands(cmd_ctx, NULL, jtag_command_handlers);
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user