* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
- * Copyright (C) 2007,2008 Øyvind Harboe *
+ * Copyright (C) 2007-2010 Øyvind Harboe *
* oyvind.harboe@zylin.com *
* *
* Copyright (C) 2009 SoftPLC Corporation *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>. *
***************************************************************************/
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
+#include "adapter.h"
#include "jtag.h"
+#include "swd.h"
#include "minidriver.h"
#include "interface.h"
#include "interfaces.h"
+#include "tcl.h"
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
-static const Jim_Nvp nvp_jtag_tap_event[] = {
- { .value = JTAG_TRST_ASSERTED, .name = "post-reset" },
- { .value = JTAG_TAP_EVENT_SETUP, .name = "setup" },
+#include <helper/time_support.h>
+#include "transport/transport.h"
+
+/**
+ * @file
+ * Holds support for accessing JTAG-specific mechanisms from TCl scripts.
+ */
+
+static const struct jim_nvp nvp_jtag_tap_event[] = {
+ { .value = JTAG_TRST_ASSERTED, .name = "post-reset" },
+ { .value = JTAG_TAP_EVENT_SETUP, .name = "setup" },
{ .value = JTAG_TAP_EVENT_ENABLE, .name = "tap-enable" },
{ .value = JTAG_TAP_EVENT_DISABLE, .name = "tap-disable" },
{ .name = NULL, .value = -1 }
};
-extern struct jtag_interface *jtag_interface;
+struct jtag_tap *jtag_tap_by_jim_obj(Jim_Interp *interp, Jim_Obj *o)
+{
+ const char *cp = Jim_GetString(o, NULL);
+ struct jtag_tap *t = cp ? jtag_tap_by_string(cp) : NULL;
+ if (!cp)
+ cp = "(unknown)";
+ if (!t)
+ Jim_SetResultFormatted(interp, "Tap '%s' could not be found", cp);
+ return t;
+}
-enum jtag_tap_cfg_param {
- JCFG_EVENT
-};
+static bool scan_is_safe(tap_state_t state)
+{
+ switch (state) {
+ case TAP_RESET:
+ case TAP_IDLE:
+ case TAP_DRPAUSE:
+ case TAP_IRPAUSE:
+ return true;
+ default:
+ return false;
+ }
+}
-static Jim_Nvp nvp_config_opts[] = {
- { .name = "-event", .value = JCFG_EVENT },
+static int jim_command_drscan(Jim_Interp *interp, int argc, Jim_Obj * const *args)
+{
+ int retval;
+ struct scan_field *fields;
+ int num_fields;
+ int field_count = 0;
+ int i, e;
+ struct jtag_tap *tap;
+ tap_state_t endstate;
- { .name = NULL, .value = -1 }
-};
+ /* args[1] = device
+ * args[2] = num_bits
+ * args[3] = hex string
+ * ... repeat num bits and hex string ...
+ *
+ * .. optionally:
+ * args[N-2] = "-endstate"
+ * args[N-1] = statename
+ */
+ if ((argc < 4) || ((argc % 2) != 0)) {
+ Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
+ return JIM_ERR;
+ }
-static int jtag_tap_configure_cmd(Jim_GetOptInfo *goi, struct jtag_tap * tap)
-{
- Jim_Nvp *n;
- Jim_Obj *o;
- int e;
+ endstate = TAP_IDLE;
- /* parse config or cget options */
- while (goi->argc > 0) {
- Jim_SetEmptyResult (goi->interp);
+ /* validate arguments as numbers */
+ e = JIM_OK;
+ for (i = 2; i < argc; i += 2) {
+ long bits;
+ const char *cp;
- e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
- if (e != JIM_OK) {
- Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
+ e = Jim_GetLong(interp, args[i], &bits);
+ /* If valid - try next arg */
+ if (e == JIM_OK)
+ continue;
+
+ /* Not valid.. are we at the end? */
+ if (((i + 2) != argc)) {
+ /* nope, then error */
return e;
}
- switch (n->value) {
- case JCFG_EVENT:
- if (goi->argc == 0) {
- Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ...");
- return JIM_ERR;
- }
-
- e = Jim_GetOpt_Nvp(goi, nvp_jtag_tap_event, &n);
- if (e != JIM_OK) {
- Jim_GetOpt_NvpUnknown(goi, nvp_jtag_tap_event, 1);
- return e;
- }
-
- if (goi->isconfigure) {
- if (goi->argc != 1) {
- Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
- return JIM_ERR;
- }
- } else {
- if (goi->argc != 0) {
- Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
- return JIM_ERR;
- }
- }
+ /* it could be: "-endstate FOO"
+ * e.g. DRPAUSE so we can issue more instructions
+ * before entering RUN/IDLE and executing them.
+ */
- {
- struct jtag_tap_event_action *jteap;
+ /* get arg as a string. */
+ cp = Jim_GetString(args[i], NULL);
+ /* is it the magic? */
+ if (strcmp("-endstate", cp) == 0) {
+ /* is the statename valid? */
+ cp = Jim_GetString(args[i + 1], NULL);
- jteap = tap->event_action;
- /* replace existing? */
- while (jteap) {
- if (jteap->event == (enum jtag_event)n->value) {
- break;
- }
- jteap = jteap->next;
- }
+ /* see if it is a valid state name */
+ endstate = tap_state_by_name(cp);
+ if (endstate < 0) {
+ /* update the error message */
+ Jim_SetResultFormatted(interp, "endstate: %s invalid", cp);
+ } else {
+ if (!scan_is_safe(endstate))
+ LOG_WARNING("drscan with unsafe "
+ "endstate \"%s\"", cp);
- if (goi->isconfigure) {
- bool replace = true;
- if (jteap == NULL) {
- /* create new */
- jteap = calloc(1, sizeof (*jteap));
- replace = false;
- }
- jteap->event = n->value;
- Jim_GetOpt_Obj(goi, &o);
- if (jteap->body) {
- Jim_DecrRefCount(interp, jteap->body);
- }
- jteap->body = Jim_DuplicateObj(goi->interp, o);
- Jim_IncrRefCount(jteap->body);
-
- if (!replace)
- {
- /* add to head of event list */
- jteap->next = tap->event_action;
- tap->event_action = jteap;
- }
- Jim_SetEmptyResult(goi->interp);
- } else {
- /* get */
- if (jteap == NULL) {
- Jim_SetEmptyResult(goi->interp);
- } else {
- Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, jteap->body));
- }
- }
- }
- /* loop for more */
- break;
+ /* valid - so clear the error */
+ e = JIM_OK;
+ /* and remove the last 2 args */
+ argc -= 2;
+ }
}
- } /* while (goi->argc) */
-
- return JIM_OK;
-}
-static int is_bad_irval(int ir_length, jim_wide w)
-{
- jim_wide v = 1;
+ /* Still an error? */
+ if (e != JIM_OK)
+ return e; /* too bad */
+ } /* validate args */
- v <<= ir_length;
- v -= 1;
- v = ~v;
- return (w & v) != 0;
-}
+ assert(e == JIM_OK);
-static int jim_newtap_cmd(Jim_GetOptInfo *goi)
-{
- struct jtag_tap *pTap;
- jim_wide w;
- int x;
- int e;
- Jim_Nvp *n;
- char *cp;
- const Jim_Nvp opts[] = {
-#define NTAP_OPT_IRLEN 0
- { .name = "-irlen" , .value = NTAP_OPT_IRLEN },
-#define NTAP_OPT_IRMASK 1
- { .name = "-irmask" , .value = NTAP_OPT_IRMASK },
-#define NTAP_OPT_IRCAPTURE 2
- { .name = "-ircapture" , .value = NTAP_OPT_IRCAPTURE },
-#define NTAP_OPT_ENABLED 3
- { .name = "-enable" , .value = NTAP_OPT_ENABLED },
-#define NTAP_OPT_DISABLED 4
- { .name = "-disable" , .value = NTAP_OPT_DISABLED },
-#define NTAP_OPT_EXPECTED_ID 5
- { .name = "-expected-id" , .value = NTAP_OPT_EXPECTED_ID },
- { .name = NULL , .value = -1 },
- };
+ tap = jtag_tap_by_jim_obj(interp, args[1]);
+ if (!tap)
+ return JIM_ERR;
- pTap = calloc(1, sizeof(struct jtag_tap));
- if (!pTap) {
- Jim_SetResult_sprintf(goi->interp, "no memory");
+ num_fields = (argc-2)/2;
+ if (num_fields <= 0) {
+ Jim_SetResultString(interp, "drscan: no scan fields supplied", -1);
return JIM_ERR;
}
+ fields = malloc(sizeof(struct scan_field) * num_fields);
+ for (i = 2; i < argc; i += 2) {
+ long bits;
+ int len;
+ const char *str;
+
+ Jim_GetLong(interp, args[i], &bits);
+ str = Jim_GetString(args[i + 1], &len);
+
+ fields[field_count].num_bits = bits;
+ void *t = malloc(DIV_ROUND_UP(bits, 8));
+ fields[field_count].out_value = t;
+ str_to_buf(str, len, t, bits, 0);
+ fields[field_count].in_value = t;
+ field_count++;
+ }
+
+ jtag_add_dr_scan(tap, num_fields, fields, endstate);
+
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK) {
+ Jim_SetResultString(interp, "drscan: jtag execute failed", -1);
+
+ for (i = 0; i < field_count; i++)
+ free(fields[i].in_value);
+ free(fields);
- /*
- * we expect CHIP + TAP + OPTIONS
- * */
- if (goi->argc < 3) {
- Jim_SetResult_sprintf(goi->interp, "Missing CHIP TAP OPTIONS ....");
- free(pTap);
return JIM_ERR;
}
- Jim_GetOpt_String(goi, &cp, NULL);
- pTap->chip = strdup(cp);
- Jim_GetOpt_String(goi, &cp, NULL);
- pTap->tapname = strdup(cp);
+ field_count = 0;
+ Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
+ for (i = 2; i < argc; i += 2) {
+ long bits;
+ char *str;
- /* name + dot + name + null */
- x = strlen(pTap->chip) + 1 + strlen(pTap->tapname) + 1;
- cp = malloc(x);
- sprintf(cp, "%s.%s", pTap->chip, pTap->tapname);
- pTap->dotted_name = cp;
+ Jim_GetLong(interp, args[i], &bits);
+ str = buf_to_hex_str(fields[field_count].in_value, bits);
+ free(fields[field_count].in_value);
- LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
- pTap->chip, pTap->tapname, pTap->dotted_name, goi->argc);
+ Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
+ free(str);
+ field_count++;
+ }
- /* IEEE specifies that the two LSBs of an IR scan are 01, so make
- * that the default. The "-irlen" and "-irmask" options are only
- * needed to cope with nonstandard TAPs, or to specify more bits.
- */
- pTap->ir_capture_mask = 0x03;
- pTap->ir_capture_value = 0x01;
+ Jim_SetResult(interp, list);
- while (goi->argc) {
- e = Jim_GetOpt_Nvp(goi, opts, &n);
- if (e != JIM_OK) {
- Jim_GetOpt_NvpUnknown(goi, opts, 0);
- free((void *)pTap->dotted_name);
- free(pTap);
- return e;
- }
- LOG_DEBUG("Processing option: %s", n->name);
- switch (n->value) {
- case NTAP_OPT_ENABLED:
- pTap->disabled_after_reset = false;
- break;
- case NTAP_OPT_DISABLED:
- pTap->disabled_after_reset = true;
- break;
- case NTAP_OPT_EXPECTED_ID:
- {
- uint32_t *new_expected_ids;
-
- e = Jim_GetOpt_Wide(goi, &w);
- if (e != JIM_OK) {
- Jim_SetResult_sprintf(goi->interp, "option: %s bad parameter", n->name);
- free((void *)pTap->dotted_name);
- free(pTap);
- return e;
- }
+ free(fields);
- new_expected_ids = malloc(sizeof(uint32_t) * (pTap->expected_ids_cnt + 1));
- if (new_expected_ids == NULL) {
- Jim_SetResult_sprintf(goi->interp, "no memory");
- free((void *)pTap->dotted_name);
- free(pTap);
- return JIM_ERR;
- }
+ return JIM_OK;
+}
- memcpy(new_expected_ids, pTap->expected_ids, sizeof(uint32_t) * pTap->expected_ids_cnt);
- new_expected_ids[pTap->expected_ids_cnt] = w;
+static int jim_command_pathmove(Jim_Interp *interp, int argc, Jim_Obj * const *args)
+{
+ tap_state_t states[8];
- free(pTap->expected_ids);
- pTap->expected_ids = new_expected_ids;
- pTap->expected_ids_cnt++;
- break;
+ if ((argc < 2) || ((size_t)argc > (ARRAY_SIZE(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_SetResultFormatted(interp, "endstate: %s invalid", cp);
+ return JIM_ERR;
}
- case NTAP_OPT_IRLEN:
- case NTAP_OPT_IRMASK:
- case NTAP_OPT_IRCAPTURE:
- e = Jim_GetOpt_Wide(goi, &w);
- if (e != JIM_OK) {
- Jim_SetResult_sprintf(goi->interp, "option: %s bad parameter", n->name);
- free((void *)pTap->dotted_name);
- free(pTap);
- return e;
- }
- switch (n->value) {
- case NTAP_OPT_IRLEN:
- if (w > (jim_wide) (8 * sizeof(pTap->ir_capture_value)))
- LOG_WARNING("%s: huge IR length %d",
- pTap->dotted_name,
- (int) w);
- pTap->ir_length = w;
- break;
- case NTAP_OPT_IRMASK:
- if (is_bad_irval(pTap->ir_length, w)) {
- LOG_ERROR("%s: IR mask %x too big",
- pTap->dotted_name,
- (int) w);
- free((void *)pTap->dotted_name);
- free(pTap);
- return ERROR_FAIL;
- }
- if ((w & 3) != 3)
- LOG_WARNING("%s: nonstandard IR mask",
- pTap->dotted_name);
- pTap->ir_capture_mask = w;
- break;
- case NTAP_OPT_IRCAPTURE:
- if (is_bad_irval(pTap->ir_length, w)) {
- LOG_ERROR("%s: IR capture %x too big",
- pTap->dotted_name,
- (int) w);
- free((void *)pTap->dotted_name);
- free(pTap);
- return ERROR_FAIL;
- }
- if ((w & 3) != 1)
- LOG_WARNING("%s: nonstandard IR value",
- pTap->dotted_name);
- pTap->ir_capture_value = w;
- break;
- }
- } /* switch (n->value) */
- } /* while (goi->argc) */
+ }
- /* default is enabled-after-reset */
- pTap->enabled = !pTap->disabled_after_reset;
+ if ((jtag_add_statemove(states[0]) != ERROR_OK) || (jtag_execute_queue() != ERROR_OK)) {
+ Jim_SetResultString(interp, "pathmove: jtag execute failed", -1);
+ return JIM_ERR;
+ }
- /* Did all the required option bits get cleared? */
- if (pTap->ir_length != 0)
- {
- jtag_tap_init(pTap);
- return ERROR_OK;
+ jtag_add_pathmove(argc - 2, states + 1);
+
+ if (jtag_execute_queue() != ERROR_OK) {
+ Jim_SetResultString(interp, "pathmove: failed", -1);
+ return JIM_ERR;
}
- Jim_SetResult_sprintf(goi->interp,
- "newtap: %s missing IR length",
- pTap->dotted_name);
- jtag_tap_free(pTap);
- return JIM_ERR;
+ return JIM_OK;
}
-static void jtag_tap_handle_event(struct jtag_tap *tap, enum jtag_event e)
+
+static int jim_command_flush_count(Jim_Interp *interp, int argc, Jim_Obj * const *args)
{
- struct jtag_tap_event_action * jteap;
-
- for (jteap = tap->event_action; jteap != NULL; jteap = jteap->next) {
- if (jteap->event == e) {
- LOG_DEBUG("JTAG tap: %s event: %d (%s)\n\taction: %s",
- tap->dotted_name,
- e,
- Jim_Nvp_value2name_simple(nvp_jtag_tap_event, e)->name,
- Jim_GetString(jteap->body, NULL));
- if (Jim_EvalObj(interp, jteap->body) != JIM_OK) {
- Jim_PrintErrorMessage(interp);
- } else switch (e) {
- case JTAG_TAP_EVENT_ENABLE:
- case JTAG_TAP_EVENT_DISABLE:
- /* NOTE: we currently assume the handlers
- * can't fail. Right here is where we should
- * really be verifying the scan chains ...
- */
- tap->enabled = (e == JTAG_TAP_EVENT_ENABLE);
- LOG_INFO("JTAG tap: %s %s", tap->dotted_name,
- tap->enabled ? "enabled" : "disabled");
- break;
- default:
- break;
- }
- }
- }
+ Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_get_flush_queue_count()));
+
+ return JIM_OK;
}
+/* REVISIT Just what about these should "move" ... ?
+ * These registrations, into the main JTAG table?
+ *
+ * There's a minor compatibility issue, these all show up twice;
+ * that's not desirable:
+ * - jtag drscan ... NOT DOCUMENTED!
+ * - drscan ...
+ *
+ * The "irscan" command (for example) doesn't show twice.
+ */
+static const struct command_registration jtag_command_handlers_to_move[] = {
+ {
+ .name = "drscan",
+ .mode = COMMAND_EXEC,
+ .jim_handler = jim_command_drscan,
+ .help = "Execute Data Register (DR) scan for one TAP. "
+ "Other TAPs must be in BYPASS mode.",
+ .usage = "tap_name [num_bits value]* ['-endstate' state_name]",
+ },
+ {
+ .name = "flush_count",
+ .mode = COMMAND_EXEC,
+ .jim_handler = jim_command_flush_count,
+ .help = "Returns the number of times the JTAG queue "
+ "has been flushed.",
+ },
+ {
+ .name = "pathmove",
+ .mode = COMMAND_EXEC,
+ .jim_handler = jim_command_pathmove,
+ .usage = "start_state state1 [state2 [state3 ...]]",
+ .help = "Move JTAG state machine from current state "
+ "(start_state) to state1, then state2, state3, etc.",
+ },
+ COMMAND_REGISTRATION_DONE
+};
-static int jim_jtag_command(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
-{
- Jim_GetOptInfo goi;
- int e;
- Jim_Nvp *n;
- Jim_Obj *o;
- struct command_context *context;
-
- enum {
- JTAG_CMD_INTERFACE,
- JTAG_CMD_INIT,
- JTAG_CMD_INIT_RESET,
- JTAG_CMD_NEWTAP,
- JTAG_CMD_TAPENABLE,
- JTAG_CMD_TAPDISABLE,
- JTAG_CMD_TAPISENABLED,
- JTAG_CMD_CONFIGURE,
- JTAG_CMD_CGET,
- JTAG_CMD_NAMES,
- };
- const Jim_Nvp jtag_cmds[] = {
- { .name = "interface" , .value = JTAG_CMD_INTERFACE },
- { .name = "arp_init" , .value = JTAG_CMD_INIT },
- { .name = "arp_init-reset", .value = JTAG_CMD_INIT_RESET },
- { .name = "newtap" , .value = JTAG_CMD_NEWTAP },
- { .name = "tapisenabled" , .value = JTAG_CMD_TAPISENABLED },
- { .name = "tapenable" , .value = JTAG_CMD_TAPENABLE },
- { .name = "tapdisable" , .value = JTAG_CMD_TAPDISABLE },
- { .name = "configure" , .value = JTAG_CMD_CONFIGURE },
- { .name = "cget" , .value = JTAG_CMD_CGET },
- { .name = "names" , .value = JTAG_CMD_NAMES },
-
- { .name = NULL, .value = -1 },
- };
+enum jtag_tap_cfg_param {
+ JCFG_EVENT,
+ JCFG_IDCODE,
+};
- context = Jim_GetAssocData(interp, "context");
- /* go past the command */
- Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
+static struct jim_nvp nvp_config_opts[] = {
+ { .name = "-event", .value = JCFG_EVENT },
+ { .name = "-idcode", .value = JCFG_IDCODE },
+
+ { .name = NULL, .value = -1 }
+};
- e = Jim_GetOpt_Nvp(&goi, jtag_cmds, &n);
+static int jtag_tap_configure_event(struct jim_getopt_info *goi, struct jtag_tap *tap)
+{
+ if (goi->argc == 0) {
+ Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event <event-name> ...");
+ return JIM_ERR;
+ }
+
+ struct jim_nvp *n;
+ int e = jim_getopt_nvp(goi, nvp_jtag_tap_event, &n);
if (e != JIM_OK) {
- Jim_GetOpt_NvpUnknown(&goi, jtag_cmds, 0);
+ jim_getopt_nvp_unknown(goi, nvp_jtag_tap_event, 1);
return e;
}
- Jim_SetEmptyResult(goi.interp);
- switch (n->value) {
- case JTAG_CMD_INTERFACE:
- /* return the name of the interface */
- /* TCL code might need to know the exact type... */
- /* FUTURE: we allow this as a means to "set" the interface. */
- if (goi.argc != 0) {
- Jim_WrongNumArgs(goi.interp, 1, goi.argv-1, "(no params)");
+
+ if (goi->isconfigure) {
+ if (goi->argc != 1) {
+ Jim_WrongNumArgs(goi->interp,
+ goi->argc,
+ goi->argv,
+ "-event <event-name> <event-body>");
return JIM_ERR;
}
- const char *name = jtag_interface ? jtag_interface->name : NULL;
- Jim_SetResultString(goi.interp, name ? : "undefined", -1);
- return JIM_OK;
- case JTAG_CMD_INIT:
- if (goi.argc != 0) {
- Jim_WrongNumArgs(goi.interp, 1, goi.argv-1, "(no params)");
+ } else {
+ if (goi->argc != 0) {
+ Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event <event-name>");
return JIM_ERR;
}
- e = jtag_init_inner(context);
- if (e != ERROR_OK) {
- Jim_SetResult_sprintf(goi.interp, "error: %d", e);
- return JIM_ERR;
+ }
+
+ struct jtag_tap_event_action *jteap = tap->event_action;
+ /* replace existing event body */
+ bool found = false;
+ while (jteap) {
+ if (jteap->event == (enum jtag_event)n->value) {
+ found = true;
+ break;
}
- return JIM_OK;
- case JTAG_CMD_INIT_RESET:
- if (goi.argc != 0) {
- Jim_WrongNumArgs(goi.interp, 1, goi.argv-1, "(no params)");
- return JIM_ERR;
+ jteap = jteap->next;
+ }
+
+ Jim_SetEmptyResult(goi->interp);
+
+ if (goi->isconfigure) {
+ if (!found)
+ jteap = calloc(1, sizeof(*jteap));
+ else if (jteap->body)
+ Jim_DecrRefCount(goi->interp, jteap->body);
+
+ jteap->interp = goi->interp;
+ jteap->event = n->value;
+
+ Jim_Obj *o;
+ jim_getopt_obj(goi, &o);
+ jteap->body = Jim_DuplicateObj(goi->interp, o);
+ Jim_IncrRefCount(jteap->body);
+
+ if (!found) {
+ /* add to head of event list */
+ jteap->next = tap->event_action;
+ tap->event_action = jteap;
}
- e = jtag_init_reset(context);
- if (e != ERROR_OK) {
- Jim_SetResult_sprintf(goi.interp, "error: %d", e);
- return JIM_ERR;
+ } else if (found) {
+ jteap->interp = goi->interp;
+ Jim_SetResult(goi->interp,
+ Jim_DuplicateObj(goi->interp, jteap->body));
+ }
+ return JIM_OK;
+}
+
+static int jtag_tap_configure_cmd(struct jim_getopt_info *goi, struct jtag_tap *tap)
+{
+ /* parse config or cget options */
+ while (goi->argc > 0) {
+ Jim_SetEmptyResult(goi->interp);
+
+ struct jim_nvp *n;
+ int e = jim_getopt_nvp(goi, nvp_config_opts, &n);
+ if (e != JIM_OK) {
+ jim_getopt_nvp_unknown(goi, nvp_config_opts, 0);
+ return e;
}
- return JIM_OK;
- case JTAG_CMD_NEWTAP:
- return jim_newtap_cmd(&goi);
- break;
- case JTAG_CMD_TAPISENABLED:
- case JTAG_CMD_TAPENABLE:
- case JTAG_CMD_TAPDISABLE:
- if (goi.argc != 1) {
- Jim_SetResultString(goi.interp, "Too many parameters",-1);
- return JIM_ERR;
+
+ switch (n->value) {
+ case JCFG_EVENT:
+ e = jtag_tap_configure_event(goi, tap);
+ if (e != JIM_OK)
+ return e;
+ break;
+ case JCFG_IDCODE:
+ if (goi->isconfigure) {
+ Jim_SetResultFormatted(goi->interp,
+ "not settable: %s", n->name);
+ return JIM_ERR;
+ } else {
+ if (goi->argc != 0) {
+ Jim_WrongNumArgs(goi->interp,
+ goi->argc, goi->argv,
+ "NO PARAMS");
+ return JIM_ERR;
+ }
+ }
+ Jim_SetResult(goi->interp, Jim_NewIntObj(goi->interp, tap->idcode));
+ break;
+ default:
+ Jim_SetResultFormatted(goi->interp, "unknown value: %s", n->name);
+ return JIM_ERR;
}
+ }
- {
- struct jtag_tap *t;
+ return JIM_OK;
+}
- t = jtag_tap_by_jim_obj(goi.interp, goi.argv[0]);
- if (t == NULL)
- return JIM_ERR;
+static int is_bad_irval(int ir_length, jim_wide w)
+{
+ jim_wide v = 1;
- switch (n->value) {
- case JTAG_CMD_TAPISENABLED:
- break;
- case JTAG_CMD_TAPENABLE:
- if (t->enabled)
- break;
- jtag_tap_handle_event(t, JTAG_TAP_EVENT_ENABLE);
- if (!t->enabled)
- break;
-
- /* FIXME add JTAG sanity checks, w/o TLR
- * - scan chain length grew by one (this)
- * - IDs and IR lengths are as expected
- */
+ v <<= ir_length;
+ v -= 1;
+ v = ~v;
+ return (w & v) != 0;
+}
- jtag_call_event_callbacks(JTAG_TAP_EVENT_ENABLE);
- break;
- case JTAG_CMD_TAPDISABLE:
- if (!t->enabled)
- break;
- jtag_tap_handle_event(t, JTAG_TAP_EVENT_DISABLE);
- if (t->enabled)
- break;
-
- /* FIXME add JTAG sanity checks, w/o TLR
- * - scan chain length shrank by one (this)
- * - IDs and IR lengths are as expected
- */
+static int jim_newtap_expected_id(struct jim_nvp *n, struct jim_getopt_info *goi,
+ struct jtag_tap *tap)
+{
+ jim_wide w;
+ int e = jim_getopt_wide(goi, &w);
+ if (e != JIM_OK) {
+ Jim_SetResultFormatted(goi->interp, "option: %s bad parameter", n->name);
+ return e;
+ }
- jtag_call_event_callbacks(JTAG_TAP_EVENT_DISABLE);
- break;
- }
- e = t->enabled;
- Jim_SetResult(goi.interp, Jim_NewIntObj(goi.interp, e));
- return JIM_OK;
- }
- break;
+ uint32_t *p = realloc(tap->expected_ids,
+ (tap->expected_ids_cnt + 1) * sizeof(uint32_t));
+ if (!p) {
+ Jim_SetResultFormatted(goi->interp, "no memory");
+ return JIM_ERR;
+ }
+
+ tap->expected_ids = p;
+ tap->expected_ids[tap->expected_ids_cnt++] = w;
+
+ return JIM_OK;
+}
+
+#define NTAP_OPT_IRLEN 0
+#define NTAP_OPT_IRMASK 1
+#define NTAP_OPT_IRCAPTURE 2
+#define NTAP_OPT_ENABLED 3
+#define NTAP_OPT_DISABLED 4
+#define NTAP_OPT_EXPECTED_ID 5
+#define NTAP_OPT_VERSION 6
+
+static int jim_newtap_ir_param(struct jim_nvp *n, struct jim_getopt_info *goi,
+ struct jtag_tap *tap)
+{
+ jim_wide w;
+ int e = jim_getopt_wide(goi, &w);
+ if (e != JIM_OK) {
+ Jim_SetResultFormatted(goi->interp,
+ "option: %s bad parameter", n->name);
+ return e;
+ }
+ switch (n->value) {
+ case NTAP_OPT_IRLEN:
+ if (w > (jim_wide) (8 * sizeof(tap->ir_capture_value))) {
+ LOG_WARNING("%s: huge IR length %d",
+ tap->dotted_name, (int) w);
+ }
+ tap->ir_length = w;
+ break;
+ case NTAP_OPT_IRMASK:
+ if (is_bad_irval(tap->ir_length, w)) {
+ LOG_ERROR("%s: IR mask %x too big",
+ tap->dotted_name,
+ (int) w);
+ return JIM_ERR;
+ }
+ if ((w & 3) != 3)
+ LOG_WARNING("%s: nonstandard IR mask", tap->dotted_name);
+ tap->ir_capture_mask = w;
+ break;
+ case NTAP_OPT_IRCAPTURE:
+ if (is_bad_irval(tap->ir_length, w)) {
+ LOG_ERROR("%s: IR capture %x too big",
+ tap->dotted_name, (int) w);
+ return JIM_ERR;
+ }
+ if ((w & 3) != 1)
+ LOG_WARNING("%s: nonstandard IR value",
+ tap->dotted_name);
+ tap->ir_capture_value = w;
+ break;
+ default:
+ return JIM_ERR;
+ }
+ return JIM_OK;
+}
+
+static int jim_newtap_cmd(struct jim_getopt_info *goi)
+{
+ struct jtag_tap *tap;
+ int x;
+ int e;
+ struct jim_nvp *n;
+ char *cp;
+ const struct jim_nvp opts[] = {
+ { .name = "-irlen", .value = NTAP_OPT_IRLEN },
+ { .name = "-irmask", .value = NTAP_OPT_IRMASK },
+ { .name = "-ircapture", .value = NTAP_OPT_IRCAPTURE },
+ { .name = "-enable", .value = NTAP_OPT_ENABLED },
+ { .name = "-disable", .value = NTAP_OPT_DISABLED },
+ { .name = "-expected-id", .value = NTAP_OPT_EXPECTED_ID },
+ { .name = "-ignore-version", .value = NTAP_OPT_VERSION },
+ { .name = NULL, .value = -1 },
+ };
- case JTAG_CMD_CGET:
- if (goi.argc < 2) {
- Jim_WrongNumArgs(goi.interp, 0, NULL,
- "cget tap_name queryparm");
- return JIM_ERR;
- }
+ tap = calloc(1, sizeof(struct jtag_tap));
+ if (!tap) {
+ Jim_SetResultFormatted(goi->interp, "no memory");
+ return JIM_ERR;
+ }
- {
- struct jtag_tap *t;
+ /*
+ * we expect CHIP + TAP + OPTIONS
+ * */
+ if (goi->argc < 3) {
+ Jim_SetResultFormatted(goi->interp, "Missing CHIP TAP OPTIONS ....");
+ free(tap);
+ return JIM_ERR;
+ }
- Jim_GetOpt_Obj(&goi, &o);
- t = jtag_tap_by_jim_obj(goi.interp, o);
- if (t == NULL) {
- return JIM_ERR;
- }
+ const char *tmp;
+ jim_getopt_string(goi, &tmp, NULL);
+ tap->chip = strdup(tmp);
- goi.isconfigure = 0;
- return jtag_tap_configure_cmd(&goi, t);
- }
- break;
+ jim_getopt_string(goi, &tmp, NULL);
+ tap->tapname = strdup(tmp);
- case JTAG_CMD_CONFIGURE:
- if (goi.argc < 3) {
- Jim_WrongNumArgs(goi.interp, 0, NULL,
- "configure tap_name attribute value ...");
- return JIM_ERR;
- }
+ /* name + dot + name + null */
+ x = strlen(tap->chip) + 1 + strlen(tap->tapname) + 1;
+ cp = malloc(x);
+ sprintf(cp, "%s.%s", tap->chip, tap->tapname);
+ tap->dotted_name = cp;
- {
- struct jtag_tap *t;
+ LOG_DEBUG("Creating New Tap, Chip: %s, Tap: %s, Dotted: %s, %d params",
+ tap->chip, tap->tapname, tap->dotted_name, goi->argc);
- Jim_GetOpt_Obj(&goi, &o);
- t = jtag_tap_by_jim_obj(goi.interp, o);
- if (t == NULL) {
- return JIM_ERR;
- }
+ if (!transport_is_jtag()) {
+ /* SWD doesn't require any JTAG tap parameters */
+ tap->enabled = true;
+ jtag_tap_init(tap);
+ return JIM_OK;
+ }
- goi.isconfigure = 1;
- return jtag_tap_configure_cmd(&goi, t);
- }
- break;
+ /* IEEE specifies that the two LSBs of an IR scan are 01, so make
+ * that the default. The "-ircapture" and "-irmask" options are only
+ * needed to cope with nonstandard TAPs, or to specify more bits.
+ */
+ tap->ir_capture_mask = 0x03;
+ tap->ir_capture_value = 0x01;
- case JTAG_CMD_NAMES:
- if (goi.argc != 0) {
- Jim_WrongNumArgs(goi.interp, 1, goi.argv, "Too many parameters");
- return JIM_ERR;
- }
- Jim_SetResult(goi.interp, Jim_NewListObj(goi.interp, NULL, 0));
- {
- struct jtag_tap *tap;
-
- for (tap = jtag_all_taps(); tap; tap = tap->next_tap) {
- Jim_ListAppendElement(goi.interp,
- Jim_GetResult(goi.interp),
- Jim_NewStringObj(goi.interp,
- tap->dotted_name, -1));
- }
- return JIM_OK;
+ while (goi->argc) {
+ e = jim_getopt_nvp(goi, opts, &n);
+ if (e != JIM_OK) {
+ jim_getopt_nvp_unknown(goi, opts, 0);
+ free(cp);
+ free(tap);
+ return e;
}
- break;
+ LOG_DEBUG("Processing option: %s", n->name);
+ switch (n->value) {
+ case NTAP_OPT_ENABLED:
+ tap->disabled_after_reset = false;
+ break;
+ case NTAP_OPT_DISABLED:
+ tap->disabled_after_reset = true;
+ break;
+ case NTAP_OPT_EXPECTED_ID:
+ e = jim_newtap_expected_id(n, goi, tap);
+ if (e != JIM_OK) {
+ free(cp);
+ free(tap);
+ return e;
+ }
+ break;
+ case NTAP_OPT_IRLEN:
+ case NTAP_OPT_IRMASK:
+ case NTAP_OPT_IRCAPTURE:
+ e = jim_newtap_ir_param(n, goi, tap);
+ if (e != JIM_OK) {
+ free(cp);
+ free(tap);
+ return e;
+ }
+ break;
+ case NTAP_OPT_VERSION:
+ tap->ignore_version = true;
+ break;
+ } /* switch (n->value) */
+ } /* while (goi->argc) */
+
+ /* default is enabled-after-reset */
+ tap->enabled = !tap->disabled_after_reset;
+ /* Did all the required option bits get cleared? */
+ if (tap->ir_length != 0) {
+ jtag_tap_init(tap);
+ return JIM_OK;
}
+ Jim_SetResultFormatted(goi->interp,
+ "newtap: %s missing IR length",
+ tap->dotted_name);
+ jtag_tap_free(tap);
return JIM_ERR;
}
-
-void jtag_notify_event(enum jtag_event event)
+static void jtag_tap_handle_event(struct jtag_tap *tap, enum jtag_event e)
{
- struct jtag_tap *tap;
+ struct jtag_tap_event_action *jteap;
+ int retval;
- for (tap = jtag_all_taps(); tap; tap = tap->next_tap)
- jtag_tap_handle_event(tap, event);
-}
+ for (jteap = tap->event_action; jteap; jteap = jteap->next) {
+ if (jteap->event != e)
+ continue;
+ struct jim_nvp *nvp = jim_nvp_value2name_simple(nvp_jtag_tap_event, e);
+ LOG_DEBUG("JTAG tap: %s event: %d (%s)\n\taction: %s",
+ tap->dotted_name, e, nvp->name,
+ Jim_GetString(jteap->body, NULL));
-static int default_khz(int khz, int *jtag_speed)
-{
- LOG_ERROR("Translation from khz to jtag_speed not implemented");
- return ERROR_FAIL;
+ retval = Jim_EvalObj(jteap->interp, jteap->body);
+ if (retval == JIM_RETURN)
+ retval = jteap->interp->returnCode;
+
+ if (retval != JIM_OK) {
+ Jim_MakeErrorMessage(jteap->interp);
+ LOG_USER("%s", Jim_GetString(Jim_GetResult(jteap->interp), NULL));
+ continue;
+ }
+
+ switch (e) {
+ case JTAG_TAP_EVENT_ENABLE:
+ case JTAG_TAP_EVENT_DISABLE:
+ /* NOTE: we currently assume the handlers
+ * can't fail. Right here is where we should
+ * really be verifying the scan chains ...
+ */
+ tap->enabled = (e == JTAG_TAP_EVENT_ENABLE);
+ LOG_INFO("JTAG tap: %s %s", tap->dotted_name,
+ tap->enabled ? "enabled" : "disabled");
+ break;
+ default:
+ break;
+ }
+ }
}
-static int default_speed_div(int speed, int *khz)
+static int jim_jtag_arp_init(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
- LOG_ERROR("Translation from jtag_speed to khz not implemented");
- return ERROR_FAIL;
+ struct jim_getopt_info goi;
+ jim_getopt_setup(&goi, interp, argc-1, argv + 1);
+ if (goi.argc != 0) {
+ Jim_WrongNumArgs(goi.interp, 1, goi.argv-1, "(no params)");
+ return JIM_ERR;
+ }
+ struct command_context *context = current_command_context(interp);
+ int e = jtag_init_inner(context);
+ if (e != ERROR_OK) {
+ Jim_Obj *obj = Jim_NewIntObj(goi.interp, e);
+ Jim_SetResultFormatted(goi.interp, "error: %#s", obj);
+ return JIM_ERR;
+ }
+ return JIM_OK;
}
-static int default_power_dropout(int *dropout)
+static int jim_jtag_arp_init_reset(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
- *dropout = 0; /* by default we can't detect power dropout */
- return ERROR_OK;
+ int e = ERROR_OK;
+ struct jim_getopt_info goi;
+ jim_getopt_setup(&goi, interp, argc-1, argv + 1);
+ if (goi.argc != 0) {
+ Jim_WrongNumArgs(goi.interp, 1, goi.argv-1, "(no params)");
+ return JIM_ERR;
+ }
+ struct command_context *context = current_command_context(interp);
+ if (transport_is_jtag())
+ e = jtag_init_reset(context);
+ else if (transport_is_swd())
+ e = swd_init_reset(context);
+
+ if (e != ERROR_OK) {
+ Jim_Obj *obj = Jim_NewIntObj(goi.interp, e);
+ Jim_SetResultFormatted(goi.interp, "error: %#s", obj);
+ return JIM_ERR;
+ }
+ return JIM_OK;
}
-static int default_srst_asserted(int *srst_asserted)
+int jim_jtag_newtap(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
- *srst_asserted = 0; /* by default we can't detect srst asserted */
- return ERROR_OK;
+ struct jim_getopt_info goi;
+ jim_getopt_setup(&goi, interp, argc-1, argv + 1);
+ return jim_newtap_cmd(&goi);
}
-COMMAND_HANDLER(handle_interface_list_command)
+static bool jtag_tap_enable(struct jtag_tap *t)
{
- if (strcmp(CMD_NAME, "interface_list") == 0 && CMD_ARGC > 0)
- return ERROR_COMMAND_SYNTAX_ERROR;
+ if (t->enabled)
+ return false;
+ jtag_tap_handle_event(t, JTAG_TAP_EVENT_ENABLE);
+ if (!t->enabled)
+ return false;
- command_print(CMD_CTX, "The following JTAG interfaces are available:");
- for (unsigned i = 0; NULL != jtag_interfaces[i]; i++)
- {
- const char *name = jtag_interfaces[i]->name;
- command_print(CMD_CTX, "%u: %s", i + 1, name);
- }
+ /* FIXME add JTAG sanity checks, w/o TLR
+ * - scan chain length grew by one (this)
+ * - IDs and IR lengths are as expected
+ */
+ jtag_call_event_callbacks(JTAG_TAP_EVENT_ENABLE);
+ return true;
+}
+static bool jtag_tap_disable(struct jtag_tap *t)
+{
+ if (!t->enabled)
+ return false;
+ jtag_tap_handle_event(t, JTAG_TAP_EVENT_DISABLE);
+ if (t->enabled)
+ return false;
- return ERROR_OK;
+ /* FIXME add JTAG sanity checks, w/o TLR
+ * - scan chain length shrank by one (this)
+ * - IDs and IR lengths are as expected
+ */
+ jtag_call_event_callbacks(JTAG_TAP_EVENT_DISABLE);
+ return true;
}
-COMMAND_HANDLER(handle_interface_command)
+int jim_jtag_tap_enabler(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
- /* check whether the interface is already configured */
- if (jtag_interface)
- {
- LOG_WARNING("Interface already configured, ignoring");
- return ERROR_OK;
+ struct command *c = jim_to_command(interp);
+ const char *cmd_name = c->name;
+ struct jim_getopt_info goi;
+ jim_getopt_setup(&goi, interp, argc-1, argv + 1);
+ if (goi.argc != 1) {
+ Jim_SetResultFormatted(goi.interp, "usage: %s <name>", cmd_name);
+ return JIM_ERR;
}
- /* interface name is a mandatory argument */
- if (CMD_ARGC != 1 || CMD_ARGV[0][0] == '\0')
- return ERROR_COMMAND_SYNTAX_ERROR;
+ struct jtag_tap *t;
- for (unsigned i = 0; NULL != jtag_interfaces[i]; i++)
- {
- if (strcmp(CMD_ARGV[0], jtag_interfaces[i]->name) != 0)
- continue;
+ t = jtag_tap_by_jim_obj(goi.interp, goi.argv[0]);
+ if (!t)
+ return JIM_ERR;
- if (NULL != jtag_interfaces[i]->commands)
- {
- int retval = register_commands(CMD_CTX, NULL,
- jtag_interfaces[i]->commands);
- if (ERROR_OK != retval)
- return retval;
+ if (strcasecmp(cmd_name, "tapisenabled") == 0) {
+ /* do nothing, just return the value */
+ } else if (strcasecmp(cmd_name, "tapenable") == 0) {
+ if (!jtag_tap_enable(t)) {
+ LOG_WARNING("failed to enable tap %s", t->dotted_name);
+ return JIM_ERR;
}
-
- jtag_interface = jtag_interfaces[i];
-
- if (jtag_interface->khz == NULL)
- jtag_interface->khz = default_khz;
- if (jtag_interface->speed_div == NULL)
- jtag_interface->speed_div = default_speed_div;
- if (jtag_interface->power_dropout == NULL)
- jtag_interface->power_dropout = default_power_dropout;
- if (jtag_interface->srst_asserted == NULL)
- jtag_interface->srst_asserted = default_srst_asserted;
-
- return ERROR_OK;
+ } else if (strcasecmp(cmd_name, "tapdisable") == 0) {
+ if (!jtag_tap_disable(t)) {
+ LOG_WARNING("failed to disable tap %s", t->dotted_name);
+ return JIM_ERR;
+ }
+ } else {
+ LOG_ERROR("command '%s' unknown", cmd_name);
+ return JIM_ERR;
}
-
- /* no valid interface was found (i.e. the configuration option,
- * didn't match one of the compiled-in interfaces
- */
- LOG_ERROR("The specified JTAG interface was not found (%s)", CMD_ARGV[0]);
- CALL_COMMAND_HANDLER(handle_interface_list_command);
- return ERROR_JTAG_INVALID_INTERFACE;
+ bool e = t->enabled;
+ Jim_SetResult(goi.interp, Jim_NewIntObj(goi.interp, e));
+ return JIM_OK;
}
-COMMAND_HANDLER(handle_scan_chain_command)
+int jim_jtag_configure(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
- struct jtag_tap *tap;
+ struct command *c = jim_to_command(interp);
+ const char *cmd_name = c->name;
+ struct jim_getopt_info goi;
+ jim_getopt_setup(&goi, interp, argc-1, argv + 1);
+ goi.isconfigure = !strcmp(cmd_name, "configure");
+ if (goi.argc < 2 + goi.isconfigure) {
+ Jim_WrongNumArgs(goi.interp, 0, NULL,
+ "<tap_name> <attribute> ...");
+ return JIM_ERR;
+ }
- tap = jtag_all_taps();
- command_print(CMD_CTX, " TapName | Enabled | IdCode Expected IrLen IrCap IrMask Instr ");
- command_print(CMD_CTX, "---|--------------------|---------|------------|------------|------|------|------|---------");
+ struct jtag_tap *t;
- while (tap) {
- uint32_t expected, expected_mask, cur_instr, ii;
- expected = buf_get_u32(tap->expected, 0, tap->ir_length);
- expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
- cur_instr = buf_get_u32(tap->cur_instr, 0, tap->ir_length);
-
- command_print(CMD_CTX,
- "%2d | %-18s | %c | 0x%08x | 0x%08x | 0x%02x | 0x%02x | 0x%02x | 0x%02x",
- tap->abs_chain_position,
- tap->dotted_name,
- tap->enabled ? 'Y' : 'n',
- (unsigned int)(tap->idcode),
- (unsigned int)(tap->expected_ids_cnt > 0 ? tap->expected_ids[0] : 0),
- (unsigned int)(tap->ir_length),
- (unsigned int)(expected),
- (unsigned int)(expected_mask),
- (unsigned int)(cur_instr));
+ Jim_Obj *o;
+ jim_getopt_obj(&goi, &o);
+ t = jtag_tap_by_jim_obj(goi.interp, o);
+ if (!t)
+ return JIM_ERR;
- for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
- command_print(CMD_CTX, " | | | | 0x%08x | | | | ",
- (unsigned int)(tap->expected_ids[ii]));
- }
+ return jtag_tap_configure_cmd(&goi, t);
+}
- tap = tap->next_tap;
+static int jim_jtag_names(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
+{
+ struct jim_getopt_info goi;
+ jim_getopt_setup(&goi, interp, argc-1, argv + 1);
+ if (goi.argc != 0) {
+ Jim_WrongNumArgs(goi.interp, 1, goi.argv, "Too many parameters");
+ return JIM_ERR;
}
+ Jim_SetResult(goi.interp, Jim_NewListObj(goi.interp, NULL, 0));
+ struct jtag_tap *tap;
- return ERROR_OK;
+ for (tap = jtag_all_taps(); tap; tap = tap->next_tap) {
+ Jim_ListAppendElement(goi.interp,
+ Jim_GetResult(goi.interp),
+ Jim_NewStringObj(goi.interp,
+ tap->dotted_name, -1));
+ }
+ return JIM_OK;
}
-COMMAND_HANDLER(handle_reset_config_command)
+COMMAND_HANDLER(handle_jtag_init_command)
{
- int new_cfg = 0;
- int mask = 0;
+ if (CMD_ARGC != 0)
+ return ERROR_COMMAND_SYNTAX_ERROR;
- /* Original versions cared about the order of these tokens:
- * reset_config signals [combination [trst_type [srst_type]]]
- * They also clobbered the previous configuration even on error.
- *
- * Here we don't care about the order, and only change values
- * which have been explicitly specified.
- */
- for (; CMD_ARGC; CMD_ARGC--, CMD_ARGV++) {
- int tmp = 0;
- int m;
-
- /* gating */
- m = RESET_SRST_NO_GATING;
- if (strcmp(*CMD_ARGV, "srst_gates_jtag") == 0)
- /* default: don't use JTAG while SRST asserted */;
- else if (strcmp(*CMD_ARGV, "srst_nogate") == 0)
- tmp = RESET_SRST_NO_GATING;
- else
- m = 0;
- if (mask & m) {
- LOG_ERROR("extra reset_config %s spec (%s)",
- "gating", *CMD_ARGV);
- return ERROR_INVALID_ARGUMENTS;
- }
- if (m)
- goto next;
-
- /* signals */
- m = RESET_HAS_TRST | RESET_HAS_SRST;
- if (strcmp(*CMD_ARGV, "none") == 0)
- tmp = RESET_NONE;
- else if (strcmp(*CMD_ARGV, "trst_only") == 0)
- tmp = RESET_HAS_TRST;
- else if (strcmp(*CMD_ARGV, "srst_only") == 0)
- tmp = RESET_HAS_SRST;
- else if (strcmp(*CMD_ARGV, "trst_and_srst") == 0)
- tmp = RESET_HAS_TRST | RESET_HAS_SRST;
- else
- m = 0;
- if (mask & m) {
- LOG_ERROR("extra reset_config %s spec (%s)",
- "signal", *CMD_ARGV);
- return ERROR_INVALID_ARGUMENTS;
- }
- if (m)
- goto next;
-
- /* combination (options for broken wiring) */
- m = RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
- if (strcmp(*CMD_ARGV, "separate") == 0)
- /* separate reset lines - default */;
- else if (strcmp(*CMD_ARGV, "srst_pulls_trst") == 0)
- tmp |= RESET_SRST_PULLS_TRST;
- else if (strcmp(*CMD_ARGV, "trst_pulls_srst") == 0)
- tmp |= RESET_TRST_PULLS_SRST;
- else if (strcmp(*CMD_ARGV, "combined") == 0)
- tmp |= RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST;
- else
- m = 0;
- if (mask & m) {
- LOG_ERROR("extra reset_config %s spec (%s)",
- "combination", *CMD_ARGV);
- return ERROR_INVALID_ARGUMENTS;
- }
- if (m)
- goto next;
-
- /* trst_type (NOP without HAS_TRST) */
- m = RESET_TRST_OPEN_DRAIN;
- if (strcmp(*CMD_ARGV, "trst_open_drain") == 0)
- tmp |= RESET_TRST_OPEN_DRAIN;
- else if (strcmp(*CMD_ARGV, "trst_push_pull") == 0)
- /* push/pull from adapter - default */;
- else
- m = 0;
- if (mask & m) {
- LOG_ERROR("extra reset_config %s spec (%s)",
- "trst_type", *CMD_ARGV);
- return ERROR_INVALID_ARGUMENTS;
- }
- if (m)
- goto next;
-
- /* srst_type (NOP without HAS_SRST) */
- m |= RESET_SRST_PUSH_PULL;
- if (strcmp(*CMD_ARGV, "srst_push_pull") == 0)
- tmp |= RESET_SRST_PUSH_PULL;
- else if (strcmp(*CMD_ARGV, "srst_open_drain") == 0)
- /* open drain from adapter - default */;
- else
- m = 0;
- if (mask & m) {
- LOG_ERROR("extra reset_config %s spec (%s)",
- "srst_type", *CMD_ARGV);
- return ERROR_INVALID_ARGUMENTS;
- }
- if (m)
- goto next;
+ static bool jtag_initialized;
+ if (jtag_initialized) {
+ LOG_INFO("'jtag init' has already been called");
+ return ERROR_OK;
+ }
+ jtag_initialized = true;
- /* caller provided nonsense; fail */
- LOG_ERROR("unknown reset_config flag (%s)", *CMD_ARGV);
- return ERROR_INVALID_ARGUMENTS;
+ LOG_DEBUG("Initializing jtag devices...");
+ return jtag_init(CMD_CTX);
+}
-next:
- /* Remember the bits which were specified (mask)
- * and their new values (new_cfg).
- */
- mask |= m;
- new_cfg |= tmp;
- }
+static const struct command_registration jtag_subcommand_handlers[] = {
+ {
+ .name = "init",
+ .mode = COMMAND_ANY,
+ .handler = handle_jtag_init_command,
+ .help = "initialize jtag scan chain",
+ .usage = ""
+ },
+ {
+ .name = "arp_init",
+ .mode = COMMAND_ANY,
+ .jim_handler = jim_jtag_arp_init,
+ .help = "Validates JTAG scan chain against the list of "
+ "declared TAPs using just the four standard JTAG "
+ "signals.",
+ },
+ {
+ .name = "arp_init-reset",
+ .mode = COMMAND_ANY,
+ .jim_handler = jim_jtag_arp_init_reset,
+ .help = "Uses TRST and SRST to try resetting everything on "
+ "the JTAG scan chain, then performs 'jtag arp_init'."
+ },
+ {
+ .name = "newtap",
+ .mode = COMMAND_CONFIG,
+ .jim_handler = jim_jtag_newtap,
+ .help = "Create a new TAP instance named basename.tap_type, "
+ "and appends it to the scan chain.",
+ .usage = "basename tap_type '-irlen' count "
+ "['-enable'|'-disable'] "
+ "['-expected_id' number] "
+ "['-ignore-version'] "
+ "['-ircapture' number] "
+ "['-mask' number]",
+ },
+ {
+ .name = "tapisenabled",
+ .mode = COMMAND_EXEC,
+ .jim_handler = jim_jtag_tap_enabler,
+ .help = "Returns a Tcl boolean (0/1) indicating whether "
+ "the TAP is enabled (1) or not (0).",
+ .usage = "tap_name",
+ },
+ {
+ .name = "tapenable",
+ .mode = COMMAND_EXEC,
+ .jim_handler = jim_jtag_tap_enabler,
+ .help = "Try to enable the specified TAP using the "
+ "'tap-enable' TAP event.",
+ .usage = "tap_name",
+ },
+ {
+ .name = "tapdisable",
+ .mode = COMMAND_EXEC,
+ .jim_handler = jim_jtag_tap_enabler,
+ .help = "Try to disable the specified TAP using the "
+ "'tap-disable' TAP event.",
+ .usage = "tap_name",
+ },
+ {
+ .name = "configure",
+ .mode = COMMAND_ANY,
+ .jim_handler = jim_jtag_configure,
+ .help = "Provide a Tcl handler for the specified "
+ "TAP event.",
+ .usage = "tap_name '-event' event_name handler",
+ },
+ {
+ .name = "cget",
+ .mode = COMMAND_EXEC,
+ .jim_handler = jim_jtag_configure,
+ .help = "Return any Tcl handler for the specified "
+ "TAP event.",
+ .usage = "tap_name '-event' event_name",
+ },
+ {
+ .name = "names",
+ .mode = COMMAND_ANY,
+ .jim_handler = jim_jtag_names,
+ .help = "Returns list of all JTAG tap names.",
+ },
+ {
+ .chain = jtag_command_handlers_to_move,
+ },
+ COMMAND_REGISTRATION_DONE
+};
- /* clear previous values of those bits, save new values */
- if (mask) {
- int old_cfg = jtag_get_reset_config();
+void jtag_notify_event(enum jtag_event event)
+{
+ struct jtag_tap *tap;
- old_cfg &= ~mask;
- new_cfg |= old_cfg;
- jtag_set_reset_config(new_cfg);
- } else
- new_cfg = jtag_get_reset_config();
+ for (tap = jtag_all_taps(); tap; tap = tap->next_tap)
+ jtag_tap_handle_event(tap, event);
+}
- /*
- * Display the (now-)current reset mode
- */
- char *modes[5];
-
- /* minimal JTAG has neither SRST nor TRST (so that's the default) */
- switch (new_cfg & (RESET_HAS_TRST | RESET_HAS_SRST)) {
- case RESET_HAS_SRST:
- modes[0] = "srst_only";
- break;
- case RESET_HAS_TRST:
- modes[0] = "trst_only";
- break;
- case RESET_TRST_AND_SRST:
- modes[0] = "trst_and_srst";
- break;
- default:
- modes[0] = "none";
- break;
- }
+COMMAND_HANDLER(handle_scan_chain_command)
+{
+ struct jtag_tap *tap;
+ char expected_id[12];
- /* normally SRST and TRST are decoupled; but bugs happen ... */
- switch (new_cfg & (RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST)) {
- case RESET_SRST_PULLS_TRST:
- modes[1] = "srst_pulls_trst";
- break;
- case RESET_TRST_PULLS_SRST:
- modes[1] = "trst_pulls_srst";
- break;
- case RESET_SRST_PULLS_TRST | RESET_TRST_PULLS_SRST:
- modes[1] = "combined";
- break;
- default:
- modes[1] = "separate";
- break;
- }
+ tap = jtag_all_taps();
+ command_print(CMD,
+ " TapName Enabled IdCode Expected IrLen IrCap IrMask");
+ command_print(CMD,
+ "-- ------------------- -------- ---------- ---------- ----- ----- ------");
- /* TRST-less connectors include Altera, Xilinx, and minimal JTAG */
- if (new_cfg & RESET_HAS_TRST) {
- if (new_cfg & RESET_TRST_OPEN_DRAIN)
- modes[3] = " trst_open_drain";
- else
- modes[3] = " trst_push_pull";
- } else
- modes[3] = "";
-
- /* SRST-less connectors include TI-14, Xilinx, and minimal JTAG */
- if (new_cfg & RESET_HAS_SRST) {
- if (new_cfg & RESET_SRST_NO_GATING)
- modes[2] = " srst_nogate";
- else
- modes[2] = " srst_gates_jtag";
+ while (tap) {
+ uint32_t expected, expected_mask, ii;
- if (new_cfg & RESET_SRST_PUSH_PULL)
- modes[4] = " srst_push_pull";
- else
- modes[4] = " srst_open_drain";
- } else {
- modes[2] = "";
- modes[4] = "";
- }
+ snprintf(expected_id, sizeof(expected_id), "0x%08x",
+ (unsigned)((tap->expected_ids_cnt > 0)
+ ? tap->expected_ids[0]
+ : 0));
+ if (tap->ignore_version)
+ expected_id[2] = '*';
- command_print(CMD_CTX, "%s %s%s%s%s",
- modes[0], modes[1],
- modes[2], modes[3], modes[4]);
+ expected = buf_get_u32(tap->expected, 0, tap->ir_length);
+ expected_mask = buf_get_u32(tap->expected_mask, 0, tap->ir_length);
- return ERROR_OK;
-}
+ command_print(CMD,
+ "%2d %-18s %c 0x%08x %s %5d 0x%02x 0x%02x",
+ tap->abs_chain_position,
+ tap->dotted_name,
+ tap->enabled ? 'Y' : 'n',
+ (unsigned int)(tap->idcode),
+ expected_id,
+ (unsigned int)(tap->ir_length),
+ (unsigned int)(expected),
+ (unsigned int)(expected_mask));
-COMMAND_HANDLER(handle_jtag_nsrst_delay_command)
-{
- if (CMD_ARGC > 1)
- return ERROR_COMMAND_SYNTAX_ERROR;
- if (CMD_ARGC == 1)
- {
- unsigned delay;
- COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], delay);
+ for (ii = 1; ii < tap->expected_ids_cnt; ii++) {
+ snprintf(expected_id, sizeof(expected_id), "0x%08x",
+ (unsigned) tap->expected_ids[ii]);
+ if (tap->ignore_version)
+ expected_id[2] = '*';
+
+ command_print(CMD,
+ " %s",
+ expected_id);
+ }
- jtag_set_nsrst_delay(delay);
+ tap = tap->next_tap;
}
- command_print(CMD_CTX, "jtag_nsrst_delay: %u", jtag_get_nsrst_delay());
+
return ERROR_OK;
}
{
if (CMD_ARGC > 1)
return ERROR_COMMAND_SYNTAX_ERROR;
- if (CMD_ARGC == 1)
- {
+ if (CMD_ARGC == 1) {
unsigned delay;
COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], delay);
jtag_set_ntrst_delay(delay);
}
- command_print(CMD_CTX, "jtag_ntrst_delay: %u", jtag_get_ntrst_delay());
- return ERROR_OK;
-}
-
-COMMAND_HANDLER(handle_jtag_nsrst_assert_width_command)
-{
- if (CMD_ARGC > 1)
- return ERROR_COMMAND_SYNTAX_ERROR;
- if (CMD_ARGC == 1)
- {
- unsigned delay;
- COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], delay);
-
- jtag_set_nsrst_assert_width(delay);
- }
- command_print(CMD_CTX, "jtag_nsrst_assert_width: %u", jtag_get_nsrst_assert_width());
+ command_print(CMD, "jtag_ntrst_delay: %u", jtag_get_ntrst_delay());
return ERROR_OK;
}
{
if (CMD_ARGC > 1)
return ERROR_COMMAND_SYNTAX_ERROR;
- if (CMD_ARGC == 1)
- {
+ if (CMD_ARGC == 1) {
unsigned delay;
COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], delay);
jtag_set_ntrst_assert_width(delay);
}
- command_print(CMD_CTX, "jtag_ntrst_assert_width: %u", jtag_get_ntrst_assert_width());
+ command_print(CMD, "jtag_ntrst_assert_width: %u", jtag_get_ntrst_assert_width());
return ERROR_OK;
}
-COMMAND_HANDLER(handle_jtag_khz_command)
-{
- if (CMD_ARGC > 1)
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- int retval = ERROR_OK;
- if (CMD_ARGC == 1)
- {
- unsigned khz = 0;
- COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], khz);
-
- retval = jtag_config_khz(khz);
- if (ERROR_OK != retval)
- return retval;
- }
-
- int cur_speed = jtag_get_speed_khz();
- retval = jtag_get_speed_readable(&cur_speed);
- if (ERROR_OK != retval)
- return retval;
-
- if (cur_speed)
- command_print(CMD_CTX, "%d kHz", cur_speed);
- else
- command_print(CMD_CTX, "RCLK - adaptive");
-
- return retval;
-}
-
COMMAND_HANDLER(handle_jtag_rclk_command)
{
if (CMD_ARGC > 1)
return ERROR_COMMAND_SYNTAX_ERROR;
int retval = ERROR_OK;
- if (CMD_ARGC == 1)
- {
+ if (CMD_ARGC == 1) {
unsigned khz = 0;
COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], khz);
retval = jtag_config_rclk(khz);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
}
int cur_khz = jtag_get_speed_khz();
retval = jtag_get_speed_readable(&cur_khz);
- if (ERROR_OK != retval)
- return retval;
-
- if (cur_khz)
- command_print(CMD_CTX, "RCLK not supported - fallback to %d kHz", cur_khz);
- else
- command_print(CMD_CTX, "RCLK - adaptive");
-
- return retval;
-}
-
-COMMAND_HANDLER(handle_jtag_reset_command)
-{
- if (CMD_ARGC != 2)
- return ERROR_COMMAND_SYNTAX_ERROR;
-
- int trst = -1;
- if (CMD_ARGV[0][0] == '1')
- trst = 1;
- else if (CMD_ARGV[0][0] == '0')
- trst = 0;
- else
- return ERROR_COMMAND_SYNTAX_ERROR;
+ if (retval != ERROR_OK)
+ return retval;
- int srst = -1;
- if (CMD_ARGV[1][0] == '1')
- srst = 1;
- else if (CMD_ARGV[1][0] == '0')
- srst = 0;
+ if (cur_khz)
+ command_print(CMD, "RCLK not supported - fallback to %d kHz", cur_khz);
else
- return ERROR_COMMAND_SYNTAX_ERROR;
+ command_print(CMD, "RCLK - adaptive");
- if (jtag_interface_init(CMD_CTX) != ERROR_OK)
- return ERROR_JTAG_INIT_FAILED;
-
- jtag_add_reset(trst, srst);
- return jtag_execute_queue();
+ return retval;
}
COMMAND_HANDLER(handle_runtest_command)
* Not surprisingly, this is the same constraint as SVF; the "irscan"
* and "drscan" commands are a write-only subset of what SVF provides.
*/
-static bool scan_is_safe(tap_state_t state)
-{
- switch (state)
- {
- case TAP_RESET:
- case TAP_IDLE:
- case TAP_DRPAUSE:
- case TAP_IRPAUSE:
- return true;
- default:
- return false;
- }
-}
-
COMMAND_HANDLER(handle_irscan_command)
{
int i;
struct scan_field *fields;
- struct jtag_tap *tap;
+ struct jtag_tap *tap = NULL;
tap_state_t endstate;
if ((CMD_ARGC < 2) || (CMD_ARGC % 2))
- {
return ERROR_COMMAND_SYNTAX_ERROR;
- }
/* optional "-endstate" "statename" at the end of the arguments,
* so that e.g. IRPAUSE can let us load the data register before
endstate = TAP_IDLE;
if (CMD_ARGC >= 4) {
- /* have at least one pair of numbers. */
- /* is last pair the magic text? */
+ /* have at least one pair of numbers.
+ * is last pair the magic text? */
if (strcmp("-endstate", CMD_ARGV[CMD_ARGC - 2]) == 0) {
endstate = tap_state_by_name(CMD_ARGV[CMD_ARGC - 1]);
if (endstate == TAP_INVALID)
return ERROR_COMMAND_SYNTAX_ERROR;
if (!scan_is_safe(endstate))
LOG_WARNING("unstable irscan endstate \"%s\"",
- CMD_ARGV[CMD_ARGC - 1]);
+ CMD_ARGV[CMD_ARGC - 1]);
CMD_ARGC -= 2;
}
}
int num_fields = CMD_ARGC / 2;
- size_t fields_len = sizeof(struct scan_field) * num_fields;
- fields = malloc(fields_len);
- memset(fields, 0, fields_len);
+ if (num_fields > 1) {
+ /* we really should be looking at plain_ir_scan if we want
+ * anything more fancy.
+ */
+ LOG_ERROR("Specify a single value for tap");
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ fields = calloc(num_fields, sizeof(*fields));
int retval;
- for (i = 0; i < num_fields; i++)
- {
+ for (i = 0; i < num_fields; i++) {
tap = jtag_tap_by_string(CMD_ARGV[i*2]);
- if (tap == NULL)
- {
- int j;
- for (j = 0; j < i; j++)
- free(fields[j].out_value);
- free(fields);
- command_print(CMD_CTX, "Tap: %s unknown", CMD_ARGV[i*2]);
+ if (!tap) {
+ free(fields);
+ command_print(CMD, "Tap: %s unknown", CMD_ARGV[i*2]);
return ERROR_FAIL;
}
+ uint64_t value;
+ retval = parse_u64(CMD_ARGV[i * 2 + 1], &value);
+ if (retval != ERROR_OK)
+ goto error_return;
+
int field_size = tap->ir_length;
- fields[i].tap = tap;
fields[i].num_bits = field_size;
- fields[i].out_value = malloc(DIV_ROUND_UP(field_size, 8));
-
- uint32_t value;
- retval = parse_u32(CMD_ARGV[i * 2 + 1], &value);
- if (ERROR_OK != retval)
+ uint8_t *v = calloc(1, DIV_ROUND_UP(field_size, 8));
+ if (!v) {
+ LOG_ERROR("Out of memory");
goto error_return;
- buf_set_u32(fields[i].out_value, 0, field_size, value);
+ }
+
+ buf_set_u64(v, 0, field_size, value);
+ fields[i].out_value = v;
fields[i].in_value = NULL;
}
/* did we have an endstate? */
- jtag_add_ir_scan(num_fields, fields, endstate);
+ jtag_add_ir_scan(tap, fields, endstate);
retval = jtag_execute_queue();
error_return:
for (i = 0; i < num_fields; i++)
- {
- if (NULL != fields[i].out_value)
- free(fields[i].out_value);
- }
-
- free (fields);
-
- return retval;
-}
-
-static int Jim_Command_drscan(Jim_Interp *interp, int argc, Jim_Obj *const *args)
-{
- int retval;
- struct scan_field *fields;
- int num_fields;
- int field_count = 0;
- int i, e;
- struct jtag_tap *tap;
- tap_state_t endstate;
-
- /* args[1] = device
- * args[2] = num_bits
- * args[3] = hex string
- * ... repeat num bits and hex string ...
- *
- * .. optionally:
- * args[N-2] = "-endstate"
- * args[N-1] = statename
- */
- if ((argc < 4) || ((argc % 2) != 0))
- {
- Jim_WrongNumArgs(interp, 1, args, "wrong arguments");
- return JIM_ERR;
- }
-
- endstate = TAP_IDLE;
-
- script_debug(interp, "drscan", argc, args);
-
- /* validate arguments as numbers */
- e = JIM_OK;
- for (i = 2; i < argc; i += 2)
- {
- long bits;
- const char *cp;
-
- e = Jim_GetLong(interp, args[i], &bits);
- /* If valid - try next arg */
- if (e == JIM_OK) {
- continue;
- }
-
- /* Not valid.. are we at the end? */
- if (((i + 2) != argc)) {
- /* nope, then error */
- return e;
- }
-
- /* it could be: "-endstate FOO"
- * e.g. DRPAUSE so we can issue more instructions
- * before entering RUN/IDLE and executing them.
- */
-
- /* get arg as a string. */
- cp = Jim_GetString(args[i], NULL);
- /* is it the magic? */
- if (0 == strcmp("-endstate", cp)) {
- /* is the statename valid? */
- cp = Jim_GetString(args[i + 1], NULL);
-
- /* see if it is a valid state name */
- endstate = tap_state_by_name(cp);
- if (endstate < 0) {
- /* update the error message */
- Jim_SetResult_sprintf(interp,"endstate: %s invalid", cp);
- } else {
- if (!scan_is_safe(endstate))
- LOG_WARNING("drscan with unsafe "
- "endstate \"%s\"", cp);
-
- /* valid - so clear the error */
- e = JIM_OK;
- /* and remove the last 2 args */
- argc -= 2;
- }
- }
-
- /* Still an error? */
- if (e != JIM_OK) {
- return e; /* too bad */
- }
- } /* validate args */
-
- tap = jtag_tap_by_jim_obj(interp, args[1]);
- if (tap == NULL) {
- return JIM_ERR;
- }
-
- num_fields = (argc-2)/2;
- fields = malloc(sizeof(struct scan_field) * num_fields);
- for (i = 2; i < argc; i += 2)
- {
- long bits;
- int len;
- const char *str;
-
- Jim_GetLong(interp, args[i], &bits);
- str = Jim_GetString(args[i + 1], &len);
-
- fields[field_count].tap = tap;
- fields[field_count].num_bits = bits;
- fields[field_count].out_value = malloc(DIV_ROUND_UP(bits, 8));
- str_to_buf(str, len, fields[field_count].out_value, bits, 0);
- fields[field_count].in_value = fields[field_count].out_value;
- field_count++;
- }
-
- jtag_add_dr_scan(num_fields, fields, endstate);
-
- retval = jtag_execute_queue();
- if (retval != ERROR_OK)
- {
- Jim_SetResultString(interp, "drscan: jtag execute failed",-1);
- return JIM_ERR;
- }
-
- field_count = 0;
- Jim_Obj *list = Jim_NewListObj(interp, NULL, 0);
- for (i = 2; i < argc; i += 2)
- {
- long bits;
- char *str;
-
- Jim_GetLong(interp, args[i], &bits);
- str = buf_to_str(fields[field_count].in_value, bits, 16);
- free(fields[field_count].out_value);
-
- Jim_ListAppendElement(interp, list, Jim_NewStringObj(interp, str, strlen(str)));
- free(str);
- field_count++;
- }
-
- Jim_SetResult(interp, list);
+ free((void *)fields[i].out_value);
free(fields);
- return JIM_OK;
-}
-
-
-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;
- }
-
- script_debug(interp, "pathmove", argc, args);
-
- 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)
-{
- script_debug(interp, "flush_count", argc, args);
-
- Jim_SetResult(interp, Jim_NewIntObj(interp, jtag_get_flush_queue_count()));
-
- return JIM_OK;
+ return retval;
}
-
COMMAND_HANDLER(handle_verify_ircapture_command)
{
if (CMD_ARGC > 1)
return ERROR_COMMAND_SYNTAX_ERROR;
- if (CMD_ARGC == 1)
- {
+ if (CMD_ARGC == 1) {
bool enable;
COMMAND_PARSE_ENABLE(CMD_ARGV[0], enable);
jtag_set_verify_capture_ir(enable);
}
- const char *status = jtag_will_verify_capture_ir() ? "enabled": "disabled";
- command_print(CMD_CTX, "verify Capture-IR is %s", status);
+ const char *status = jtag_will_verify_capture_ir() ? "enabled" : "disabled";
+ command_print(CMD, "verify Capture-IR is %s", status);
return ERROR_OK;
}
if (CMD_ARGC > 1)
return ERROR_COMMAND_SYNTAX_ERROR;
- if (CMD_ARGC == 1)
- {
+ if (CMD_ARGC == 1) {
bool enable;
COMMAND_PARSE_ENABLE(CMD_ARGV[0], enable);
jtag_set_verify(enable);
}
- const char *status = jtag_will_verify() ? "enabled": "disabled";
- command_print(CMD_CTX, "verify jtag capture is %s", status);
+ const char *status = jtag_will_verify() ? "enabled" : "disabled";
+ command_print(CMD, "verify jtag capture is %s", status);
return ERROR_OK;
}
if (CMD_ARGC > 1)
return ERROR_COMMAND_SYNTAX_ERROR;
- if (CMD_ARGC == 1)
- {
+ if (CMD_ARGC == 1) {
bool use_new_table;
if (strcmp(CMD_ARGV[0], "short") == 0)
use_new_table = true;
tap_use_new_tms_table(use_new_table);
}
- command_print(CMD_CTX, "tms sequence is %s",
- tap_uses_new_tms_table() ? "short": "long");
+ command_print(CMD, "tms sequence is %s",
+ tap_uses_new_tms_table() ? "short" : "long");
+
+ return ERROR_OK;
+}
+
+COMMAND_HANDLER(handle_jtag_flush_queue_sleep)
+{
+ if (CMD_ARGC != 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ int sleep_ms;
+ COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], sleep_ms);
+
+ jtag_set_flush_queue_sleep(sleep_ms);
+
+ return ERROR_OK;
+}
+
+COMMAND_HANDLER(handle_wait_srst_deassert)
+{
+ if (CMD_ARGC != 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ int timeout_ms;
+ COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], timeout_ms);
+ if ((timeout_ms <= 0) || (timeout_ms > 100000)) {
+ LOG_ERROR("Timeout must be an integer between 0 and 100000");
+ return ERROR_FAIL;
+ }
+
+ LOG_USER("Waiting for srst assert + deassert for at most %dms", timeout_ms);
+ int asserted_yet;
+ int64_t then = timeval_ms();
+ while (jtag_srst_asserted(&asserted_yet) == ERROR_OK) {
+ if ((timeval_ms() - then) > timeout_ms) {
+ LOG_ERROR("Timed out");
+ return ERROR_FAIL;
+ }
+ if (asserted_yet)
+ break;
+ }
+ while (jtag_srst_asserted(&asserted_yet) == ERROR_OK) {
+ if ((timeval_ms() - then) > timeout_ms) {
+ LOG_ERROR("Timed out");
+ return ERROR_FAIL;
+ }
+ if (!asserted_yet)
+ break;
+ }
return ERROR_OK;
}
static const struct command_registration jtag_command_handlers[] = {
+
{
- .name = "interface",
- .handler = &handle_interface_command,
- .mode = COMMAND_CONFIG,
- .help = "select a JTAG interface",
- .usage = "<driver_name>",
- },
- {
- .name = "interface_list",
- .handler = &handle_interface_list_command,
- .mode = COMMAND_ANY,
- .help = "list all built-in interfaces",
- },
- {
- .name = "jtag_khz",
- .handler = &handle_jtag_khz_command,
+ .name = "jtag_flush_queue_sleep",
+ .handler = handle_jtag_flush_queue_sleep,
.mode = COMMAND_ANY,
- .help = "set maximum jtag speed (if supported)",
- .usage = "<khz:0=rtck>",
+ .help = "For debug purposes(simulate long delays of interface) "
+ "to test performance or change in behavior. Default 0ms.",
+ .usage = "[sleep in ms]",
},
{
.name = "jtag_rclk",
- .handler = &handle_jtag_rclk_command,
- .mode = COMMAND_ANY,
- .help = "set JTAG speed to RCLK or use fallback speed",
- .usage = "<fallback_speed_khz>",
- },
- {
- .name = "reset_config",
- .handler = &handle_reset_config_command,
- .mode = COMMAND_ANY,
- .help = "configure JTAG reset behavior",
- .usage = "[none|trst_only|srst_only|trst_and_srst] "
- "[srst_pulls_trst|trst_pulls_srst|combined|separate] "
- "[srst_gates_jtag|srst_nogate] "
- "[trst_push_pull|trst_open_drain] "
- "[srst_push_pull|srst_open_drain]",
- },
- {
- .name = "jtag_nsrst_delay",
- .handler = &handle_jtag_nsrst_delay_command,
+ .handler = handle_jtag_rclk_command,
.mode = COMMAND_ANY,
- .help = "delay after deasserting srst in ms",
- .usage = "<ms>",
+ .help = "With an argument, change to to use adaptive clocking "
+ "if possible; else to use the fallback speed. "
+ "With or without argument, display current setting.",
+ .usage = "[fallback_speed_khz]",
},
{
.name = "jtag_ntrst_delay",
- .handler = &handle_jtag_ntrst_delay_command,
+ .handler = handle_jtag_ntrst_delay_command,
.mode = COMMAND_ANY,
.help = "delay after deasserting trst in ms",
- .usage = "<ms>"
- },
- {
- .name = "jtag_nsrst_assert_width",
- .handler = &handle_jtag_nsrst_assert_width_command,
- .mode = COMMAND_ANY,
- .help = "delay after asserting srst in ms",
- .usage = "<ms>"
+ .usage = "[milliseconds]",
},
{
.name = "jtag_ntrst_assert_width",
- .handler = &handle_jtag_ntrst_assert_width_command,
+ .handler = handle_jtag_ntrst_assert_width_command,
.mode = COMMAND_ANY,
.help = "delay after asserting trst in ms",
- .usage = "<ms>"
+ .usage = "[milliseconds]",
},
{
.name = "scan_chain",
- .handler = &handle_scan_chain_command,
- .mode = COMMAND_EXEC,
+ .handler = handle_scan_chain_command,
+ .mode = COMMAND_ANY,
.help = "print current scan chain configuration",
- },
- {
- .name = "jtag_reset",
- .handler = &handle_jtag_reset_command,
- .mode = COMMAND_EXEC,
- .help = "toggle reset lines",
- .usage = "<trst> <srst>",
+ .usage = ""
},
{
.name = "runtest",
- .handler = &handle_runtest_command,
+ .handler = handle_runtest_command,
.mode = COMMAND_EXEC,
- .help = "move to Run-Test/Idle, and execute <num_cycles>",
- .usage = "<num_cycles>"
+ .help = "Move to Run-Test/Idle, and issue TCK for num_cycles.",
+ .usage = "num_cycles"
},
{
.name = "irscan",
- .handler = &handle_irscan_command,
+ .handler = handle_irscan_command,
.mode = COMMAND_EXEC,
- .help = "execute IR scan",
- .usage = "<device> <instr> [dev2] [instr2] ...",
+ .help = "Execute Instruction Register (IR) scan. The "
+ "specified opcodes are put into each TAP's IR, "
+ "and other TAPs are put in BYPASS.",
+ .usage = "[tap_name instruction]* ['-endstate' state_name]",
},
{
.name = "verify_ircapture",
- .handler = &handle_verify_ircapture_command,
+ .handler = handle_verify_ircapture_command,
.mode = COMMAND_ANY,
- .help = "verify value captured during Capture-IR",
- .usage = "<enable | disable>",
+ .help = "Display or assign flag controlling whether to "
+ "verify values captured during Capture-IR.",
+ .usage = "['enable'|'disable']",
},
{
.name = "verify_jtag",
- .handler = &handle_verify_jtag_command,
+ .handler = handle_verify_jtag_command,
.mode = COMMAND_ANY,
- .help = "verify value capture",
- .usage = "<enable | disable>",
+ .help = "Display or assign flag controlling whether to "
+ "verify values captured during IR and DR scans.",
+ .usage = "['enable'|'disable']",
},
{
.name = "tms_sequence",
- .handler = &handle_tms_sequence_command,
+ .handler = handle_tms_sequence_command,
+ .mode = COMMAND_ANY,
+ .help = "Display or change what style TMS sequences to use "
+ "for JTAG state transitions: short (default) or "
+ "long. Only for working around JTAG bugs.",
+ /* Specifically for working around DRIVER bugs... */
+ .usage = "['short'|'long']",
+ },
+ {
+ .name = "wait_srst_deassert",
+ .handler = handle_wait_srst_deassert,
.mode = COMMAND_ANY,
- .help = "choose short(default) or long tms_sequence",
- .usage = "<short | long>",
+ .help = "Wait for an SRST deassert. "
+ "Useful for cases where you need something to happen within ms "
+ "of an srst deassert. Timeout in ms",
+ .usage = "ms",
+ },
+ {
+ .name = "jtag",
+ .mode = COMMAND_ANY,
+ .help = "perform jtag tap actions",
+ .usage = "",
+
+ .chain = jtag_subcommand_handlers,
+ },
+ {
+ .chain = jtag_command_handlers_to_move,
},
COMMAND_REGISTRATION_DONE
};
int jtag_register_commands(struct command_context *cmd_ctx)
{
- register_jim(cmd_ctx, "jtag", jim_jtag_command,
- "perform jtag tap actions");
-
- 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,
- "<state1>,<state2>,<state3>... "
- "- move JTAG to state1 then to state2, state3, etc.");
-
return register_commands(cmd_ctx, NULL, jtag_command_handlers);
}
-
-
Code Review / openocd.git / blobdiff