summaryrefslogtreecommitdiffstats
path: root/grub-core/term/arc
diff options
context:
space:
mode:
Diffstat (limited to 'grub-core/term/arc')
-rw-r--r--grub-core/term/arc/console.c209
-rw-r--r--grub-core/term/arc/serial.c147
2 files changed, 356 insertions, 0 deletions
diff --git a/grub-core/term/arc/console.c b/grub-core/term/arc/console.c
new file mode 100644
index 0000000..c944ffc
--- /dev/null
+++ b/grub-core/term/arc/console.c
@@ -0,0 +1,209 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2011 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/arc/arc.h>
+#include <grub/arc/console.h>
+#include <grub/term.h>
+#include <grub/terminfo.h>
+
+/* FIXME: use unicode. */
+
+static int
+readkey (struct grub_term_input *term __attribute__ ((unused)))
+{
+ unsigned long count;
+ char chr;
+
+ if (GRUB_ARC_FIRMWARE_VECTOR->get_read_status (GRUB_ARC_STDIN))
+ return -1;
+
+ if (GRUB_ARC_FIRMWARE_VECTOR->read (GRUB_ARC_STDIN, &chr, 1, &count))
+ return -1;
+ if (!count)
+ return -1;
+ return chr;
+}
+
+static void
+put (struct grub_term_output *term __attribute__ ((unused)), const int c)
+{
+ unsigned long count;
+ char chr = c;
+
+ GRUB_ARC_FIRMWARE_VECTOR->write (GRUB_ARC_STDOUT, &chr, 1, &count);
+}
+
+static struct grub_terminfo_output_state grub_console_terminfo_output;
+
+int
+grub_arc_is_device_serial (const char *name, int alt_names)
+{
+ if (name[0] == '\0')
+ return 0;
+
+ const char *ptr = name + grub_strlen (name) - 1;
+ int i;
+ /*
+ Recognize:
+ serial(N)
+ serial(N)line(M)
+ */
+ for (i = 0; i < 2; i++)
+ {
+ if (!alt_names)
+ {
+ if (*ptr != ')')
+ return 0;
+ ptr--;
+ }
+ for (; ptr >= name && grub_isdigit (*ptr); ptr--);
+ if (ptr < name)
+ return 0;
+ if (!alt_names)
+ {
+ if (*ptr != '(')
+ return 0;
+ ptr--;
+ }
+ if (ptr + 1 >= name + sizeof ("serial") - 1
+ && grub_memcmp (ptr + 1 - (sizeof ("serial") - 1),
+ "serial", sizeof ("serial") - 1) == 0)
+ return 1;
+ if (!(ptr + 1 >= name + sizeof ("line") - 1
+ && grub_memcmp (ptr + 1 - (sizeof ("line") - 1),
+ "line", sizeof ("line") - 1) == 0))
+ return 0;
+ ptr -= sizeof ("line") - 1;
+ if (alt_names)
+ {
+ if (*ptr != '/')
+ return 0;
+ ptr--;
+ }
+ }
+ return 0;
+}
+
+static int
+check_is_serial (void)
+{
+ static int is_serial = -1;
+
+ if (is_serial != -1)
+ return is_serial;
+
+ const char *consout = 0;
+
+ /* Check for serial. It works unless user manually overrides ConsoleOut
+ variable. If he does there is nothing we can do. Fortunately failure
+ isn't critical.
+ */
+ if (GRUB_ARC_SYSTEM_PARAMETER_BLOCK->firmware_vector_length
+ >= (unsigned) ((char *) (&GRUB_ARC_FIRMWARE_VECTOR->getenvironmentvariable + 1)
+ - (char *) GRUB_ARC_FIRMWARE_VECTOR)
+ && GRUB_ARC_FIRMWARE_VECTOR->getenvironmentvariable)
+ consout = GRUB_ARC_FIRMWARE_VECTOR->getenvironmentvariable ("ConsoleOut");
+ if (!consout)
+ return is_serial = 0;
+ return is_serial = grub_arc_is_device_serial (consout, 0);
+}
+
+static void
+set_console_dimensions (void)
+{
+ struct grub_arc_display_status *info = NULL;
+
+ if (check_is_serial ())
+ {
+ grub_console_terminfo_output.size.x = 80;
+ grub_console_terminfo_output.size.y = 24;
+ return;
+ }
+
+ if (GRUB_ARC_SYSTEM_PARAMETER_BLOCK->firmware_vector_length
+ >= (unsigned) ((char *) (&GRUB_ARC_FIRMWARE_VECTOR->getdisplaystatus + 1)
+ - (char *) GRUB_ARC_FIRMWARE_VECTOR)
+ && GRUB_ARC_FIRMWARE_VECTOR->getdisplaystatus)
+ info = GRUB_ARC_FIRMWARE_VECTOR->getdisplaystatus (GRUB_ARC_STDOUT);
+ if (info)
+ {
+ grub_console_terminfo_output.size.x = info->w + 1;
+ grub_console_terminfo_output.size.y = info->h + 1;
+ }
+}
+
+static grub_err_t
+grub_console_init_output (struct grub_term_output *term)
+{
+ set_console_dimensions ();
+ grub_terminfo_output_init (term);
+
+ return 0;
+}
+
+static struct grub_terminfo_input_state grub_console_terminfo_input =
+ {
+ .readkey = readkey
+ };
+
+static struct grub_terminfo_output_state grub_console_terminfo_output =
+ {
+ .put = put,
+ .size = { 80, 20 }
+ };
+
+static struct grub_term_input grub_console_term_input =
+ {
+ .name = "console",
+ .init = grub_terminfo_input_init,
+ .getkey = grub_terminfo_getkey,
+ .data = &grub_console_terminfo_input
+ };
+
+static struct grub_term_output grub_console_term_output =
+ {
+ .name = "console",
+ .init = grub_console_init_output,
+ .putchar = grub_terminfo_putchar,
+ .getxy = grub_terminfo_getxy,
+ .getwh = grub_terminfo_getwh,
+ .gotoxy = grub_terminfo_gotoxy,
+ .cls = grub_terminfo_cls,
+ .setcolorstate = grub_terminfo_setcolorstate,
+ .setcursor = grub_terminfo_setcursor,
+ .flags = GRUB_TERM_CODE_TYPE_ASCII,
+ .data = &grub_console_terminfo_output,
+ .progress_update_divisor = GRUB_PROGRESS_FAST
+ };
+
+void
+grub_console_init_early (void)
+{
+ grub_term_register_input ("console", &grub_console_term_input);
+ grub_term_register_output ("console", &grub_console_term_output);
+}
+
+void
+grub_console_init_lately (void)
+{
+ grub_terminfo_init ();
+ if (check_is_serial ())
+ grub_terminfo_output_register (&grub_console_term_output, "vt100");
+ else
+ grub_terminfo_output_register (&grub_console_term_output, "arc");
+}
diff --git a/grub-core/term/arc/serial.c b/grub-core/term/arc/serial.c
new file mode 100644
index 0000000..87d1ce8
--- /dev/null
+++ b/grub-core/term/arc/serial.c
@@ -0,0 +1,147 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2013 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/serial.h>
+#include <grub/types.h>
+#include <grub/dl.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/time.h>
+#include <grub/i18n.h>
+#include <grub/arc/arc.h>
+
+
+static void
+do_real_config (struct grub_serial_port *port)
+{
+ char *name;
+ if (port->configured)
+ return;
+
+ name = grub_arc_alt_name_to_norm (port->name, "");
+
+ if (GRUB_ARC_FIRMWARE_VECTOR->open (name,GRUB_ARC_FILE_ACCESS_OPEN_RW,
+ &port->handle))
+ port->handle_valid = 0;
+ else
+ port->handle_valid = 1;
+
+ port->configured = 1;
+}
+
+/* Fetch a key. */
+static int
+serial_hw_fetch (struct grub_serial_port *port)
+{
+ unsigned long actual;
+ char c;
+
+ do_real_config (port);
+
+ if (!port->handle_valid)
+ return -1;
+ if (GRUB_ARC_FIRMWARE_VECTOR->read (port->handle, &c,
+ 1, &actual) || actual <= 0)
+ return -1;
+ return c;
+}
+
+/* Put a character. */
+static void
+serial_hw_put (struct grub_serial_port *port, const int c)
+{
+ unsigned long actual;
+ char c0 = c;
+
+ do_real_config (port);
+
+ if (!port->handle_valid)
+ return;
+
+ GRUB_ARC_FIRMWARE_VECTOR->write (port->handle, &c0,
+ 1, &actual);
+}
+
+/* Initialize a serial device. PORT is the port number for a serial device.
+ SPEED is a DTE-DTE speed which must be one of these: 2400, 4800, 9600,
+ 19200, 38400, 57600 and 115200. WORD_LEN is the word length to be used
+ for the device. Likewise, PARITY is the type of the parity and
+ STOP_BIT_LEN is the length of the stop bit. The possible values for
+ WORD_LEN, PARITY and STOP_BIT_LEN are defined in the header file as
+ macros. */
+static grub_err_t
+serial_hw_configure (struct grub_serial_port *port __attribute__ ((unused)),
+ struct grub_serial_config *config __attribute__ ((unused)))
+{
+ /* FIXME: no ARC serial config available. */
+
+ return GRUB_ERR_NONE;
+}
+
+struct grub_serial_driver grub_arcserial_driver =
+ {
+ .configure = serial_hw_configure,
+ .fetch = serial_hw_fetch,
+ .put = serial_hw_put
+ };
+
+const char *
+grub_arcserial_add_port (const char *path)
+{
+ struct grub_serial_port *port;
+ grub_err_t err;
+
+ port = grub_zalloc (sizeof (*port));
+ if (!port)
+ return NULL;
+ port->name = grub_strdup (path);
+ if (!port->name)
+ return NULL;
+
+ port->driver = &grub_arcserial_driver;
+ err = grub_serial_config_defaults (port);
+ if (err)
+ grub_print_error ();
+
+ grub_serial_register (port);
+
+ return port->name;
+}
+
+static int
+dev_iterate (const char *name,
+ const struct grub_arc_component *comp __attribute__ ((unused)),
+ void *data __attribute__ ((unused)))
+{
+ /* We should check consolein/consoleout flags as
+ well but some implementations are buggy. */
+ if ((comp->flags & (GRUB_ARC_COMPONENT_FLAG_IN | GRUB_ARC_COMPONENT_FLAG_OUT))
+ != (GRUB_ARC_COMPONENT_FLAG_IN | GRUB_ARC_COMPONENT_FLAG_OUT))
+ return 0;
+ if (!grub_arc_is_device_serial (name, 1))
+ return 0;
+ grub_arcserial_add_port (name);
+ return 0;
+}
+
+void
+grub_arcserial_init (void)
+{
+ grub_arc_iterate_devs (dev_iterate, 0, 1);
+}
+