diff options
Diffstat (limited to 'src/jtag/adapter.c')
| -rw-r--r-- | src/jtag/adapter.c | 231 |
1 files changed, 171 insertions, 60 deletions
diff --git a/src/jtag/adapter.c b/src/jtag/adapter.c index 29a9613..af75917 100644 --- a/src/jtag/adapter.c +++ b/src/jtag/adapter.c @@ -46,7 +46,7 @@ * 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) @@ -61,12 +61,12 @@ 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; } -COMMAND_HANDLER(interface_transport_command) +COMMAND_HANDLER(adapter_transports_command) { char **transports; int retval; @@ -85,26 +85,26 @@ COMMAND_HANDLER(interface_transport_command) 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, "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, "The following debug adapters are available:"); + for (unsigned i = 0; NULL != 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; } @@ -113,20 +113,20 @@ COMMAND_HANDLER(handle_interface_command) 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]; - return allow_transports(CMD_CTX, jtag_interface->transports); + return allow_transports(CMD_CTX, adapter_driver->transports); } /* no valid interface was found (i.e. the configuration option, @@ -134,7 +134,7 @@ COMMAND_HANDLER(handle_interface_command) */ 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; } @@ -355,7 +355,7 @@ next: 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; @@ -365,11 +365,11 @@ COMMAND_HANDLER(handle_adapter_nsrst_delay_command) jtag_set_nsrst_delay(delay); } - command_print(CMD, "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; @@ -379,11 +379,11 @@ COMMAND_HANDLER(handle_adapter_nsrst_assert_width_command) jtag_set_nsrst_assert_width(width); } - command_print(CMD, "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; @@ -411,6 +411,92 @@ COMMAND_HANDLER(handle_adapter_khz_command) 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) @@ -438,78 +524,103 @@ static const struct command_registration adapter_usb_command_handlers[] = { }; #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 ... ", + }, +#ifndef HAVE_JTAG_MINIDRIVER_H + { + .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, }, +#endif /* MINIDRIVER */ { - .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", |