+
+COMMAND_HANDLER(parport_handle_parport_toggling_time_command)
+{
+ if (CMD_ARGC == 1) {
+ uint32_t ns;
+ int retval = parse_u32(CMD_ARGV[0], &ns);
+
+ if (ERROR_OK != retval)
+ return retval;
+
+ if (ns == 0) {
+ LOG_ERROR("0 ns is not a valid parport toggling time");
+ return ERROR_FAIL;
+ }
+
+ parport_toggling_time_ns = ns;
+ wait_states = jtag_get_speed();
+ }
+
+ command_print(CMD_CTX, "parport toggling time = %" PRIu32 " ns",
+ parport_toggling_time_ns);
+
+ return ERROR_OK;
+}
+
+static const struct command_registration parport_command_handlers[] = {
+ {
+ .name = "parport_port",
+ .handler = &parport_handle_parport_port_command,
+ .mode = COMMAND_CONFIG,
+ .help = "either the address of the I/O port "
+ "or the number of the '/dev/parport' device",
+ .usage = "[<port|devname>]",
+ },
+ {
+ .name = "parport_cable",
+ .handler = &parport_handle_parport_cable_command,
+ .mode = COMMAND_CONFIG,
+ .help = "the layout of the parallel port cable "
+ "used to connect to the target",
+ .usage = "[<layout>]",
+ },
+ {
+ .name = "parport_write_on_exit",
+ .handler = &parport_handle_write_on_exit_command,
+ .mode = COMMAND_CONFIG,
+ .help = "configure the parallel driver to write "
+ "a known value to the parallel interface",
+ .usage = "[<on|off>]",
+ },
+ {
+ .name = "parport_toggling_time",
+ .handler = &parport_handle_parport_toggling_time_command,
+ .mode = COMMAND_CONFIG,
+ .help = "time <ns> it takes for the hardware to toggle TCK",
+ .usage = "[<ns>]",
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
+struct jtag_interface parport_interface = {
+ .name = "parport",
+
+ .commands = parport_command_handlers,
+
+ .init = &parport_init,
+ .quit = &parport_quit,
+
+ .khz = &parport_khz,
+ .speed_div = &parport_speed_div,
+ .speed = &parport_speed,
+
+ .execute_queue = &bitbang_execute_queue,
+ };