* Holds support for configuring debug adapters from TCl scripts.
*/
-extern struct jtag_interface *jtag_interface;
+struct adapter_driver *adapter_driver;
const char * const jtag_only[] = { "jtag", NULL };
static int jim_adapter_name(Jim_Interp *interp, int argc, Jim_Obj * const *argv)
Jim_WrongNumArgs(goi.interp, 1, goi.argv-1, "(no params)");
return JIM_ERR;
}
- const char *name = jtag_interface ? jtag_interface->name : NULL;
+ const char *name = adapter_driver ? adapter_driver->name : NULL;
Jim_SetResultString(goi.interp, name ? : "undefined", -1);
return JIM_OK;
}
-static int default_khz(int khz, int *jtag_speed)
-{
- LOG_ERROR("Translation from khz to jtag_speed not implemented");
- return ERROR_FAIL;
-}
-
-static int default_speed_div(int speed, int *khz)
-{
- LOG_ERROR("Translation from jtag_speed to khz not implemented");
- return ERROR_FAIL;
-}
-
-static int default_power_dropout(int *dropout)
-{
- *dropout = 0; /* by default we can't detect power dropout */
- return ERROR_OK;
-}
-
-static int default_srst_asserted(int *srst_asserted)
-{
- *srst_asserted = 0; /* by default we can't detect srst asserted */
- return ERROR_OK;
-}
-
COMMAND_HANDLER(interface_transport_command)
{
char **transports;
return ERROR_COMMAND_SYNTAX_ERROR;
command_print(CMD, "The following debug interfaces are available:");
- for (unsigned i = 0; NULL != jtag_interfaces[i]; i++) {
- const char *name = jtag_interfaces[i]->name;
+ for (unsigned i = 0; NULL != adapter_drivers[i]; i++) {
+ const char *name = adapter_drivers[i]->name;
command_print(CMD, "%u: %s", i + 1, name);
}
int retval;
/* check whether the interface is already configured */
- if (jtag_interface) {
+ if (adapter_driver) {
LOG_WARNING("Interface already configured, ignoring");
return ERROR_OK;
}
if (CMD_ARGC != 1 || CMD_ARGV[0][0] == '\0')
return ERROR_COMMAND_SYNTAX_ERROR;
- for (unsigned i = 0; NULL != jtag_interfaces[i]; i++) {
- if (strcmp(CMD_ARGV[0], jtag_interfaces[i]->name) != 0)
+ for (unsigned i = 0; NULL != adapter_drivers[i]; i++) {
+ if (strcmp(CMD_ARGV[0], adapter_drivers[i]->name) != 0)
continue;
- if (NULL != jtag_interfaces[i]->commands) {
+ if (NULL != adapter_drivers[i]->commands) {
retval = register_commands(CMD_CTX, NULL,
- jtag_interfaces[i]->commands);
+ adapter_drivers[i]->commands);
if (ERROR_OK != retval)
return retval;
}
- jtag_interface = jtag_interfaces[i];
+ adapter_driver = adapter_drivers[i];
- /* LEGACY SUPPORT ... adapter drivers must declare what
- * transports they allow. Until they all do so, assume
- * the legacy drivers are JTAG-only
- */
- if (!jtag_interface->transports)
- LOG_WARNING("Adapter driver '%s' did not declare "
- "which transports it allows; assuming "
- "legacy JTAG-only", jtag_interface->name);
- retval = allow_transports(CMD_CTX, jtag_interface->transports
- ? jtag_interface->transports : jtag_only);
- if (ERROR_OK != retval)
- return retval;
-
- 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;
+ return allow_transports(CMD_CTX, adapter_driver->transports);
}
/* no valid interface was found (i.e. the configuration option,
return retval;
}
+COMMAND_HANDLER(handle_adapter_reset_de_assert)
+{
+ enum values {
+ VALUE_UNDEFINED = -1,
+ VALUE_DEASSERT = 0,
+ VALUE_ASSERT = 1,
+ };
+ enum values value;
+ enum values srst = VALUE_UNDEFINED;
+ enum values trst = VALUE_UNDEFINED;
+ enum reset_types jtag_reset_config = jtag_get_reset_config();
+ char *signal;
+
+ if (CMD_ARGC == 0) {
+ if (transport_is_jtag()) {
+ if (jtag_reset_config & RESET_HAS_TRST)
+ signal = jtag_get_trst() ? "asserted" : "deasserted";
+ else
+ signal = "not present";
+ command_print(CMD, "trst %s", signal);
+ }
+
+ if (jtag_reset_config & RESET_HAS_SRST)
+ signal = jtag_get_srst() ? "asserted" : "deasserted";
+ else
+ signal = "not present";
+ command_print(CMD, "srst %s", signal);
+
+ return ERROR_OK;
+ }
+
+ if (CMD_ARGC != 1 && CMD_ARGC != 3)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ value = (strcmp(CMD_NAME, "assert") == 0) ? VALUE_ASSERT : VALUE_DEASSERT;
+ if (strcmp(CMD_ARGV[0], "srst") == 0)
+ srst = value;
+ else if (strcmp(CMD_ARGV[0], "trst") == 0)
+ trst = value;
+ else
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ if (CMD_ARGC == 3) {
+ if (strcmp(CMD_ARGV[1], "assert") == 0)
+ value = VALUE_ASSERT;
+ else if (strcmp(CMD_ARGV[1], "deassert") == 0)
+ value = VALUE_DEASSERT;
+ else
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ if (strcmp(CMD_ARGV[2], "srst") == 0 && srst == VALUE_UNDEFINED)
+ srst = value;
+ else if (strcmp(CMD_ARGV[2], "trst") == 0 && trst == VALUE_UNDEFINED)
+ trst = value;
+ else
+ return ERROR_COMMAND_SYNTAX_ERROR;
+ }
+
+ if (trst == VALUE_UNDEFINED) {
+ if (transport_is_jtag())
+ trst = jtag_get_trst() ? VALUE_ASSERT : VALUE_DEASSERT;
+ else
+ trst = VALUE_DEASSERT; /* unused, safe value */
+ }
+
+ if (srst == VALUE_UNDEFINED) {
+ if (jtag_reset_config & RESET_HAS_SRST)
+ srst = jtag_get_srst() ? VALUE_ASSERT : VALUE_DEASSERT;
+ else
+ srst = VALUE_DEASSERT; /* unused, safe value */
+ }
+
+ if (trst == VALUE_ASSERT && !transport_is_jtag()) {
+ LOG_ERROR("transport has no trst signal");
+ return ERROR_FAIL;
+ }
+
+ if (srst == VALUE_ASSERT && !(jtag_reset_config & RESET_HAS_SRST)) {
+ LOG_ERROR("adapter has no srst signal");
+ return ERROR_FAIL;
+ }
+
+ return adapter_resets((trst == VALUE_DEASSERT) ? TRST_DEASSERT : TRST_ASSERT,
+ (srst == VALUE_DEASSERT) ? SRST_DEASSERT : SRST_ASSERT);
+}
+
#ifndef HAVE_JTAG_MINIDRIVER_H
#ifdef HAVE_LIBUSB_GET_PORT_NUMBERS
COMMAND_HANDLER(handle_usb_location_command)
.chain = adapter_usb_command_handlers,
},
#endif /* MINIDRIVER */
+ {
+ .name = "assert",
+ .handler = handle_adapter_reset_de_assert,
+ .mode = COMMAND_EXEC,
+ .help = "Controls SRST and TRST lines.",
+ .usage = "|deassert [srst|trst [assert|deassert srst|trst]]",
+ },
+ {
+ .name = "deassert",
+ .handler = handle_adapter_reset_de_assert,
+ .mode = COMMAND_EXEC,
+ .help = "Controls SRST and TRST lines.",
+ .usage = "|assert [srst|trst [deassert|assert srst|trst]]",
+ },
COMMAND_REGISTRATION_DONE
};