-/***************************************************************************
- * Copyright (C) 2005 by Dominic Rath *
- * Dominic.Rath@gmx.de *
- * *
- * Copyright (C) 2007-2010 Øyvind Harboe *
- * oyvind.harboe@zylin.com *
- * *
- * Copyright (C) 2009 SoftPLC Corporation *
- * http://softplc.com *
- * dick@softplc.com *
- * *
- * Copyright (C) 2009 Zachary T Welch *
- * zw@superlucidity.net *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * 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, see <http://www.gnu.org/licenses/>. *
- ***************************************************************************/
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2005 by Dominic Rath <Dominic.Rath@gmx.de>
+ * Copyright (C) 2007-2010 Øyvind Harboe <oyvind.harboe@zylin.com>
+ * Copyright (C) 2009 SoftPLC Corporation, http://softplc.com, Dick Hollenbeck <dick@softplc.com>
+ * Copyright (C) 2009 Zachary T Welch <zw@superlucidity.net>
+ * Copyright (C) 2018 Pengutronix, Oleksij Rempel <kernel@pengutronix.de>
+ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
+#include "adapter.h"
#include "jtag.h"
#include "minidriver.h"
#include "interface.h"
#include "interfaces.h"
#include <transport/transport.h>
-#include <jtag/drivers/jtag_usb_common.h>
#ifdef HAVE_STRINGS_H
#include <strings.h>
* 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)
+/**
+ * Adapter configuration
+ */
+static struct {
+ char *usb_location;
+} adapter_config;
+
+/*
+ * 1 char: bus
+ * 2 * 7 chars: max 7 ports
+ * 1 char: test for overflow
+ * ------
+ * 16 chars
+ */
+#define USB_MAX_LOCATION_LENGTH 16
+
+#ifdef HAVE_LIBUSB_GET_PORT_NUMBERS
+static void adapter_usb_set_location(const char *location)
{
- Jim_GetOptInfo goi;
- Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
+ if (strnlen(location, USB_MAX_LOCATION_LENGTH) == USB_MAX_LOCATION_LENGTH)
+ LOG_WARNING("usb location string is too long!!");
- /* 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)");
- return JIM_ERR;
- }
- const char *name = jtag_interface ? jtag_interface->name : NULL;
- Jim_SetResultString(goi.interp, name ? : "undefined", -1);
- return JIM_OK;
-}
+ free(adapter_config.usb_location);
-static int default_khz(int khz, int *jtag_speed)
-{
- LOG_ERROR("Translation from khz to jtag_speed not implemented");
- return ERROR_FAIL;
+ adapter_config.usb_location = strndup(location, USB_MAX_LOCATION_LENGTH);
}
+#endif /* HAVE_LIBUSB_GET_PORT_NUMBERS */
-static int default_speed_div(int speed, int *khz)
+const char *adapter_usb_get_location(void)
{
- LOG_ERROR("Translation from jtag_speed to khz not implemented");
- return ERROR_FAIL;
+ return adapter_config.usb_location;
}
-static int default_power_dropout(int *dropout)
+bool adapter_usb_location_equal(uint8_t dev_bus, uint8_t *port_path, size_t path_len)
{
- *dropout = 0; /* by default we can't detect power dropout */
- return ERROR_OK;
+ size_t path_step, string_length;
+ char *ptr, *loc;
+ bool equal = false;
+
+ if (!adapter_usb_get_location())
+ return equal;
+
+ /* strtok need non const char */
+ loc = strndup(adapter_usb_get_location(), USB_MAX_LOCATION_LENGTH);
+ string_length = strnlen(loc, USB_MAX_LOCATION_LENGTH);
+
+ ptr = strtok(loc, "-");
+ if (!ptr) {
+ LOG_WARNING("no '-' in usb path\n");
+ goto done;
+ }
+
+ string_length -= strnlen(ptr, string_length);
+ /* check bus mismatch */
+ if (atoi(ptr) != dev_bus)
+ goto done;
+
+ path_step = 0;
+ while (path_step < path_len) {
+ ptr = strtok(NULL, ".");
+
+ /* no more tokens in path */
+ if (!ptr)
+ break;
+
+ /* path mismatch at some step */
+ if (path_step < path_len && atoi(ptr) != port_path[path_step])
+ break;
+
+ path_step++;
+ string_length -= strnlen(ptr, string_length) + 1;
+ };
+
+ /* walked the full path, all elements match */
+ if (path_step == path_len && !string_length)
+ equal = true;
+
+done:
+ free(loc);
+ return equal;
}
-static int default_srst_asserted(int *srst_asserted)
+static int jim_adapter_name(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 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)");
+ return JIM_ERR;
+ }
+ const char *name = adapter_driver ? adapter_driver->name : NULL;
+ Jim_SetResultString(goi.interp, name ? name : "undefined", -1);
+ return JIM_OK;
}
-COMMAND_HANDLER(interface_transport_command)
+COMMAND_HANDLER(adapter_transports_command)
{
char **transports;
int retval;
return retval;
}
-COMMAND_HANDLER(handle_interface_list_command)
+COMMAND_HANDLER(handle_adapter_list_command)
{
- if (strcmp(CMD_NAME, "interface_list") == 0 && CMD_ARGC > 0)
+ if (strcmp(CMD_NAME, "list") == 0 && CMD_ARGC > 0)
return ERROR_COMMAND_SYNTAX_ERROR;
- command_print(CMD_CTX, "The following debug 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);
+ command_print(CMD, "The following debug adapters are available:");
+ for (unsigned i = 0; adapter_drivers[i]; i++) {
+ const char *name = adapter_drivers[i]->name;
+ command_print(CMD, "%u: %s", i + 1, name);
}
return ERROR_OK;
}
-COMMAND_HANDLER(handle_interface_command)
+COMMAND_HANDLER(handle_adapter_driver_command)
{
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; adapter_drivers[i]; i++) {
+ if (strcmp(CMD_ARGV[0], adapter_drivers[i]->name) != 0)
continue;
- if (NULL != jtag_interfaces[i]->commands) {
+ if (adapter_drivers[i]->commands) {
retval = register_commands(CMD_CTX, NULL,
- jtag_interfaces[i]->commands);
- if (ERROR_OK != retval)
+ adapter_drivers[i]->commands);
+ if (retval != ERROR_OK)
return retval;
}
- jtag_interface = jtag_interfaces[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;
+ adapter_driver = adapter_drivers[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;
+ return allow_transports(CMD_CTX, adapter_driver->transports);
}
/* no valid interface was found (i.e. the configuration option,
*/
LOG_ERROR("The specified debug interface was not found (%s)",
CMD_ARGV[0]);
- CALL_COMMAND_HANDLER(handle_interface_list_command);
+ CALL_COMMAND_HANDLER(handle_adapter_list_command);
return ERROR_JTAG_INVALID_INTERFACE;
}
modes[5] = "";
}
- command_print(CMD_CTX, "%s %s%s%s%s%s",
+ command_print(CMD, "%s %s%s%s%s%s",
modes[0], modes[1],
modes[2], modes[3], modes[4], modes[5]);
return ERROR_OK;
}
-COMMAND_HANDLER(handle_adapter_nsrst_delay_command)
+COMMAND_HANDLER(handle_adapter_srst_delay_command)
{
if (CMD_ARGC > 1)
return ERROR_COMMAND_SYNTAX_ERROR;
jtag_set_nsrst_delay(delay);
}
- command_print(CMD_CTX, "adapter_nsrst_delay: %u", jtag_get_nsrst_delay());
+ command_print(CMD, "adapter srst delay: %u", jtag_get_nsrst_delay());
return ERROR_OK;
}
-COMMAND_HANDLER(handle_adapter_nsrst_assert_width_command)
+COMMAND_HANDLER(handle_adapter_srst_pulse_width_command)
{
if (CMD_ARGC > 1)
return ERROR_COMMAND_SYNTAX_ERROR;
jtag_set_nsrst_assert_width(width);
}
- command_print(CMD_CTX, "adapter_nsrst_assert_width: %u", jtag_get_nsrst_assert_width());
+ command_print(CMD, "adapter srst pulse_width: %u", jtag_get_nsrst_assert_width());
return ERROR_OK;
}
-COMMAND_HANDLER(handle_adapter_khz_command)
+COMMAND_HANDLER(handle_adapter_speed_command)
{
if (CMD_ARGC > 1)
return ERROR_COMMAND_SYNTAX_ERROR;
COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], khz);
retval = jtag_config_khz(khz);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
}
int cur_speed = jtag_get_speed_khz();
retval = jtag_get_speed_readable(&cur_speed);
- if (ERROR_OK != retval)
+ if (retval != ERROR_OK)
return retval;
if (cur_speed)
- command_print(CMD_CTX, "adapter speed: %d kHz", cur_speed);
+ command_print(CMD, "adapter speed: %d kHz", cur_speed);
else
- command_print(CMD_CTX, "adapter speed: RCLK - adaptive");
+ command_print(CMD, "adapter speed: RCLK - adaptive");
return retval;
}
-#ifndef HAVE_JTAG_MINIDRIVER_H
+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);
+}
+
#ifdef HAVE_LIBUSB_GET_PORT_NUMBERS
COMMAND_HANDLER(handle_usb_location_command)
{
if (CMD_ARGC == 1)
- jtag_usb_set_location(CMD_ARGV[0]);
+ adapter_usb_set_location(CMD_ARGV[0]);
- command_print(CMD_CTX, "adapter usb location: %s", jtag_usb_get_location());
+ command_print(CMD, "adapter usb location: %s", adapter_usb_get_location());
return ERROR_OK;
}
.name = "location",
.handler = &handle_usb_location_command,
.mode = COMMAND_CONFIG,
- .help = "set the USB bus location of the USB device",
- .usage = "<bus>-port[.port]...",
+ .help = "display or set the USB bus location of the USB device",
+ .usage = "[<bus>-port[.port]...]",
},
#endif /* HAVE_LIBUSB_GET_PORT_NUMBERS */
COMMAND_REGISTRATION_DONE
};
-#endif /* MINIDRIVER */
-static const struct command_registration adapter_command_handlers[] = {
-#ifndef HAVE_JTAG_MINIDRIVER_H
+static const struct command_registration adapter_srst_command_handlers[] = {
{
- .name = "usb",
+ .name = "delay",
+ .handler = handle_adapter_srst_delay_command,
.mode = COMMAND_ANY,
- .help = "usb adapter command group",
- .usage = "",
- .chain = adapter_usb_command_handlers,
+ .help = "delay after deasserting SRST in ms",
+ .usage = "[milliseconds]",
+ },
+ {
+ .name = "pulse_width",
+ .handler = handle_adapter_srst_pulse_width_command,
+ .mode = COMMAND_ANY,
+ .help = "SRST assertion pulse width in ms",
+ .usage = "[milliseconds]",
},
-#endif /* MINIDRIVER */
COMMAND_REGISTRATION_DONE
};
-static const struct command_registration interface_command_handlers[] = {
+static const struct command_registration adapter_command_handlers[] = {
{
- .name = "adapter",
- .mode = COMMAND_ANY,
- .help = "adapter command group",
- .usage = "",
- .chain = adapter_command_handlers,
+ .name = "driver",
+ .handler = handle_adapter_driver_command,
+ .mode = COMMAND_CONFIG,
+ .help = "Select a debug adapter driver",
+ .usage = "driver_name",
},
{
- .name = "adapter_khz",
- .handler = handle_adapter_khz_command,
+ .name = "speed",
+ .handler = handle_adapter_speed_command,
.mode = COMMAND_ANY,
.help = "With an argument, change to the specified maximum "
"jtag speed. For JTAG, 0 KHz signifies adaptive "
- " clocking. "
+ "clocking. "
"With or without argument, display current setting.",
.usage = "[khz]",
},
{
- .name = "adapter_name",
+ .name = "list",
+ .handler = handle_adapter_list_command,
+ .mode = COMMAND_ANY,
+ .help = "List all built-in debug adapter drivers",
+ .usage = "",
+ },
+ {
+ .name = "name",
.mode = COMMAND_ANY,
.jim_handler = jim_adapter_name,
.help = "Returns the name of the currently "
"selected adapter (driver)",
},
{
- .name = "adapter_nsrst_delay",
- .handler = handle_adapter_nsrst_delay_command,
+ .name = "srst",
.mode = COMMAND_ANY,
- .help = "delay after deasserting SRST in ms",
- .usage = "[milliseconds]",
+ .help = "srst adapter command group",
+ .usage = "",
+ .chain = adapter_srst_command_handlers,
},
{
- .name = "adapter_nsrst_assert_width",
- .handler = handle_adapter_nsrst_assert_width_command,
+ .name = "transports",
+ .handler = adapter_transports_command,
+ .mode = COMMAND_CONFIG,
+ .help = "Declare transports the adapter supports.",
+ .usage = "transport ...",
+ },
+ {
+ .name = "usb",
.mode = COMMAND_ANY,
- .help = "delay after asserting SRST in ms",
- .usage = "[milliseconds]",
+ .help = "usb adapter command group",
+ .usage = "",
+ .chain = adapter_usb_command_handlers,
},
{
- .name = "interface",
- .handler = handle_interface_command,
- .mode = COMMAND_CONFIG,
- .help = "Select a debug adapter interface (driver)",
- .usage = "driver_name",
+ .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 = "interface_transports",
- .handler = interface_transport_command,
- .mode = COMMAND_CONFIG,
- .help = "Declare transports the interface supports.",
- .usage = "transport ... ",
+ .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
+};
+
+static const struct command_registration interface_command_handlers[] = {
{
- .name = "interface_list",
- .handler = handle_interface_list_command,
+ .name = "adapter",
.mode = COMMAND_ANY,
- .help = "List all built-in debug adapter interfaces (drivers)",
+ .help = "adapter command group",
+ .usage = "",
+ .chain = adapter_command_handlers,
},
{
.name = "reset_config",
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