X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Fjtag%2Fadapter.c;h=e2782a7779d10bada5beb59d33365de0b3eae3a0;hp=e11f4e9067efdc9a1e51be1d9361409e89f3312a;hb=efd1d642220a4f6d3b9a9607c186452b265400d2;hpb=e162200ab2cd6c2202bd437dca91137eacf9021c diff --git a/src/jtag/adapter.c b/src/jtag/adapter.c index e11f4e9067..e2782a7779 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) @@ -61,35 +61,11 @@ 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; @@ -115,8 +91,8 @@ COMMAND_HANDLER(handle_interface_list_command) 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); } @@ -128,7 +104,7 @@ COMMAND_HANDLER(handle_interface_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; } @@ -137,42 +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]; - /* 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, @@ -457,6 +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) @@ -494,6 +534,20 @@ static const struct command_registration adapter_command_handlers[] = { .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 };