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-rw-r--r--grub-core/commands/terminal.c285
1 files changed, 285 insertions, 0 deletions
diff --git a/grub-core/commands/terminal.c b/grub-core/commands/terminal.c
new file mode 100644
index 0000000..37e0ab8
--- /dev/null
+++ b/grub-core/commands/terminal.c
@@ -0,0 +1,285 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2009,2010 Free Software Foundation, Inc.
+ *
+ * GRUB 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <grub/mm.h>
+#include <grub/dl.h>
+#include <grub/command.h>
+#include <grub/term.h>
+#include <grub/i18n.h>
+#include <grub/misc.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+struct grub_term_autoload *grub_term_input_autoload = NULL;
+struct grub_term_autoload *grub_term_output_autoload = NULL;
+
+struct abstract_terminal
+{
+ struct abstract_terminal *next;
+ struct abstract_terminal *prev;
+ const char *name;
+ grub_err_t (*init) (struct abstract_terminal *term);
+ grub_err_t (*fini) (struct abstract_terminal *term);
+};
+
+static grub_err_t
+handle_command (int argc, char **args, struct abstract_terminal **enabled,
+ struct abstract_terminal **disabled,
+ struct grub_term_autoload *autoloads,
+ const char *active_str,
+ const char *available_str)
+{
+ int i;
+ struct abstract_terminal *term;
+ struct grub_term_autoload *aut;
+
+ if (argc == 0)
+ {
+ grub_puts_ (active_str);
+ for (term = *enabled; term; term = term->next)
+ grub_printf ("%s ", term->name);
+ grub_printf ("\n");
+ grub_puts_ (available_str);
+ for (term = *disabled; term; term = term->next)
+ grub_printf ("%s ", term->name);
+ /* This is quadratic but we don't expect mode than 30 terminal
+ modules ever. */
+ for (aut = autoloads; aut; aut = aut->next)
+ {
+ for (term = *disabled; term; term = term->next)
+ if (grub_strcmp (term->name, aut->name) == 0
+ || (aut->name[0] && aut->name[grub_strlen (aut->name) - 1] == '*'
+ && grub_memcmp (term->name, aut->name,
+ grub_strlen (aut->name) - 1) == 0))
+ break;
+ if (!term)
+ for (term = *enabled; term; term = term->next)
+ if (grub_strcmp (term->name, aut->name) == 0
+ || (aut->name[0] && aut->name[grub_strlen (aut->name) - 1] == '*'
+ && grub_memcmp (term->name, aut->name,
+ grub_strlen (aut->name) - 1) == 0))
+ break;
+ if (!term)
+ grub_printf ("%s ", aut->name);
+ }
+ grub_printf ("\n");
+ return GRUB_ERR_NONE;
+ }
+ i = 0;
+
+ if (grub_strcmp (args[0], "--append") == 0
+ || grub_strcmp (args[0], "--remove") == 0)
+ i++;
+
+ if (i == argc)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("no terminal specified"));
+
+ for (; i < argc; i++)
+ {
+ int again = 0;
+ while (1)
+ {
+ for (term = *disabled; term; term = term->next)
+ if (grub_strcmp (args[i], term->name) == 0
+ || (grub_strcmp (args[i], "ofconsole") == 0
+ && grub_strcmp ("console", term->name) == 0))
+ break;
+ if (term == 0)
+ for (term = *enabled; term; term = term->next)
+ if (grub_strcmp (args[i], term->name) == 0
+ || (grub_strcmp (args[i], "ofconsole") == 0
+ && grub_strcmp ("console", term->name) == 0))
+ break;
+ if (term)
+ break;
+ if (again)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT,
+ N_("terminal `%s' isn't found"),
+ args[i]);
+ for (aut = autoloads; aut; aut = aut->next)
+ if (grub_strcmp (args[i], aut->name) == 0
+ || (grub_strcmp (args[i], "ofconsole") == 0
+ && grub_strcmp ("console", aut->name) == 0)
+ || (aut->name[0] && aut->name[grub_strlen (aut->name) - 1] == '*'
+ && grub_memcmp (args[i], aut->name,
+ grub_strlen (aut->name) - 1) == 0))
+ {
+ grub_dl_t mod;
+ mod = grub_dl_load (aut->modname);
+ if (mod)
+ grub_dl_ref (mod);
+ grub_errno = GRUB_ERR_NONE;
+ break;
+ }
+ if (grub_memcmp (args[i], "serial_usb",
+ sizeof ("serial_usb") - 1) == 0
+ && grub_term_poll_usb)
+ {
+ grub_term_poll_usb (1);
+ again = 1;
+ continue;
+ }
+ if (!aut)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT,
+ N_("terminal `%s' isn't found"),
+ args[i]);
+ again = 1;
+ }
+ }
+
+ if (grub_strcmp (args[0], "--append") == 0)
+ {
+ for (i = 1; i < argc; i++)
+ {
+ for (term = *disabled; term; term = term->next)
+ if (grub_strcmp (args[i], term->name) == 0
+ || (grub_strcmp (args[i], "ofconsole") == 0
+ && grub_strcmp ("console", term->name) == 0))
+ break;
+ if (term)
+ {
+ if (term->init && term->init (term) != GRUB_ERR_NONE)
+ return grub_errno;
+
+ grub_list_remove (GRUB_AS_LIST (term));
+ grub_list_push (GRUB_AS_LIST_P (enabled), GRUB_AS_LIST (term));
+ }
+ }
+ return GRUB_ERR_NONE;
+ }
+
+ if (grub_strcmp (args[0], "--remove") == 0)
+ {
+ for (i = 1; i < argc; i++)
+ {
+ for (term = *enabled; term; term = term->next)
+ if (grub_strcmp (args[i], term->name) == 0
+ || (grub_strcmp (args[i], "ofconsole") == 0
+ && grub_strcmp ("console", term->name) == 0))
+ break;
+ if (term)
+ {
+ if (!term->next && term == *enabled)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT,
+ "can't remove the last terminal");
+ grub_list_remove (GRUB_AS_LIST (term));
+ if (term->fini)
+ term->fini (term);
+ grub_list_push (GRUB_AS_LIST_P (disabled), GRUB_AS_LIST (term));
+ }
+ }
+ return GRUB_ERR_NONE;
+ }
+ for (i = 0; i < argc; i++)
+ {
+ for (term = *disabled; term; term = term->next)
+ if (grub_strcmp (args[i], term->name) == 0
+ || (grub_strcmp (args[i], "ofconsole") == 0
+ && grub_strcmp ("console", term->name) == 0))
+ break;
+ if (term)
+ {
+ if (term->init && term->init (term) != GRUB_ERR_NONE)
+ return grub_errno;
+
+ grub_list_remove (GRUB_AS_LIST (term));
+ grub_list_push (GRUB_AS_LIST_P (enabled), GRUB_AS_LIST (term));
+ }
+ }
+
+ {
+ struct abstract_terminal *next;
+ for (term = *enabled; term; term = next)
+ {
+ next = term->next;
+ for (i = 0; i < argc; i++)
+ if (grub_strcmp (args[i], term->name) == 0
+ || (grub_strcmp (args[i], "ofconsole") == 0
+ && grub_strcmp ("console", term->name) == 0))
+ break;
+ if (i == argc)
+ {
+ if (!term->next && term == *enabled)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT,
+ "can't remove the last terminal");
+ grub_list_remove (GRUB_AS_LIST (term));
+ if (term->fini)
+ term->fini (term);
+ grub_list_push (GRUB_AS_LIST_P (disabled), GRUB_AS_LIST (term));
+ }
+ }
+ }
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_terminal_input (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char **args)
+{
+ (void) GRUB_FIELD_MATCH (grub_term_inputs, struct abstract_terminal *, next);
+ (void) GRUB_FIELD_MATCH (grub_term_inputs, struct abstract_terminal *, prev);
+ (void) GRUB_FIELD_MATCH (grub_term_inputs, struct abstract_terminal *, name);
+ (void) GRUB_FIELD_MATCH (grub_term_inputs, struct abstract_terminal *, init);
+ (void) GRUB_FIELD_MATCH (grub_term_inputs, struct abstract_terminal *, fini);
+ return handle_command (argc, args,
+ (struct abstract_terminal **) (void *) &grub_term_inputs,
+ (struct abstract_terminal **) (void *) &grub_term_inputs_disabled,
+ grub_term_input_autoload,
+ N_("Active input terminals:"),
+ N_("Available input terminals:"));
+}
+
+static grub_err_t
+grub_cmd_terminal_output (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char **args)
+{
+ (void) GRUB_FIELD_MATCH (grub_term_outputs, struct abstract_terminal *, next);
+ (void) GRUB_FIELD_MATCH (grub_term_outputs, struct abstract_terminal *, prev);
+ (void) GRUB_FIELD_MATCH (grub_term_outputs, struct abstract_terminal *, name);
+ (void) GRUB_FIELD_MATCH (grub_term_outputs, struct abstract_terminal *, init);
+ (void) GRUB_FIELD_MATCH (grub_term_outputs, struct abstract_terminal *, fini);
+ return handle_command (argc, args,
+ (struct abstract_terminal **) (void *) &grub_term_outputs,
+ (struct abstract_terminal **) (void *) &grub_term_outputs_disabled,
+ grub_term_output_autoload,
+ N_("Active output terminals:"),
+ N_("Available output terminals:"));
+}
+
+static grub_command_t cmd_terminal_input, cmd_terminal_output;
+
+GRUB_MOD_INIT(terminal)
+{
+ cmd_terminal_input =
+ grub_register_command ("terminal_input", grub_cmd_terminal_input,
+ N_("[--append|--remove] "
+ "[TERMINAL1] [TERMINAL2] ..."),
+ N_("List or select an input terminal."));
+ cmd_terminal_output =
+ grub_register_command ("terminal_output", grub_cmd_terminal_output,
+ N_("[--append|--remove] "
+ "[TERMINAL1] [TERMINAL2] ..."),
+ N_("List or select an output terminal."));
+}
+
+GRUB_MOD_FINI(terminal)
+{
+ grub_unregister_command (cmd_terminal_input);
+ grub_unregister_command (cmd_terminal_output);
+}
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