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-rw-r--r--grub-core/term/ieee1275/console.c267
1 files changed, 267 insertions, 0 deletions
diff --git a/grub-core/term/ieee1275/console.c b/grub-core/term/ieee1275/console.c
new file mode 100644
index 0000000..7e797a7
--- /dev/null
+++ b/grub-core/term/ieee1275/console.c
@@ -0,0 +1,267 @@
+/* console.c -- Open Firmware console for GRUB. */
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2003,2004,2005,2007,2008,2009 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/term.h>
+#include <grub/types.h>
+#include <grub/misc.h>
+#include <grub/mm.h>
+#include <grub/time.h>
+#include <grub/terminfo.h>
+#include <grub/ieee1275/console.h>
+#include <grub/ieee1275/ieee1275.h>
+
+static grub_ieee1275_ihandle_t stdout_ihandle;
+static grub_ieee1275_ihandle_t stdin_ihandle;
+
+extern struct grub_terminfo_output_state grub_console_terminfo_output;
+
+struct color
+{
+ int red;
+ int green;
+ int blue;
+};
+
+/* Use serial colors as they are default on most firmwares and some firmwares
+ ignore set-color!. Additionally output may be redirected to serial. */
+static struct color colors[] =
+ {
+ // {R, G, B}
+ {0x00, 0x00, 0x00}, // 0 = black
+ {0xA8, 0x00, 0x00}, // 1 = red
+ {0x00, 0xA8, 0x00}, // 2 = green
+ {0xFE, 0xFE, 0x54}, // 3 = yellow
+ {0x00, 0x00, 0xA8}, // 4 = blue
+ {0xA8, 0x00, 0xA8}, // 5 = magenta
+ {0x00, 0xA8, 0xA8}, // 6 = cyan
+ {0xFE, 0xFE, 0xFE} // 7 = white
+ };
+
+static void
+put (struct grub_term_output *term __attribute__ ((unused)), const int c)
+{
+ char chr = c;
+
+ grub_ieee1275_write (stdout_ihandle, &chr, 1, 0);
+}
+
+static int
+readkey (struct grub_term_input *term __attribute__ ((unused)))
+{
+ grub_uint8_t c;
+ grub_ssize_t actual = 0;
+
+ grub_ieee1275_read (stdin_ihandle, &c, 1, &actual);
+ if (actual > 0)
+ return c;
+ return -1;
+}
+
+static void
+grub_console_dimensions (void)
+{
+ grub_ieee1275_ihandle_t options;
+ grub_ieee1275_phandle_t stdout_phandle;
+ char val[1024];
+
+ /* Always assume 80x24 on serial since screen-#rows/screen-#columns is often
+ garbage for such devices. */
+ if (! grub_ieee1275_instance_to_package (stdout_ihandle,
+ &stdout_phandle)
+ && ! grub_ieee1275_package_to_path (stdout_phandle,
+ val, sizeof (val) - 1, 0))
+ {
+ grub_ieee1275_ihandle_t stdout_options;
+ val[sizeof (val) - 1] = 0;
+
+ if (! grub_ieee1275_finddevice (val, &stdout_options)
+ && ! grub_ieee1275_get_property (stdout_options, "device_type",
+ val, sizeof (val) - 1, 0))
+ {
+ val[sizeof (val) - 1] = 0;
+ if (grub_strcmp (val, "serial") == 0)
+ {
+ grub_console_terminfo_output.size.x = 80;
+ grub_console_terminfo_output.size.y = 24;
+ return;
+ }
+ }
+ }
+
+ if (! grub_ieee1275_finddevice ("/options", &options)
+ && options != (grub_ieee1275_ihandle_t) -1)
+ {
+ if (! grub_ieee1275_get_property (options, "screen-#columns",
+ val, sizeof (val) - 1, 0))
+ {
+ val[sizeof (val) - 1] = 0;
+ grub_console_terminfo_output.size.x
+ = (grub_uint8_t) grub_strtoul (val, 0, 10);
+ }
+ if (! grub_ieee1275_get_property (options, "screen-#rows",
+ val, sizeof (val) - 1, 0))
+ {
+ val[sizeof (val) - 1] = 0;
+ grub_console_terminfo_output.size.y
+ = (grub_uint8_t) grub_strtoul (val, 0, 10);
+ }
+ }
+
+ /* Bogus default value on SLOF in QEMU. */
+ if (grub_console_terminfo_output.size.x == 200
+ && grub_console_terminfo_output.size.y == 200)
+ {
+ grub_console_terminfo_output.size.x = 80;
+ grub_console_terminfo_output.size.y = 24;
+ }
+
+ /* Use a small console by default. */
+ if (! grub_console_terminfo_output.size.x)
+ grub_console_terminfo_output.size.x = 80;
+ if (! grub_console_terminfo_output.size.y)
+ grub_console_terminfo_output.size.y = 24;
+}
+
+static void
+grub_console_setcursor (struct grub_term_output *term,
+ int on)
+{
+ grub_terminfo_setcursor (term, on);
+
+ if (!grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_HAS_CURSORONOFF))
+ return;
+
+ /* Understood by the Open Firmware flavour in OLPC. */
+ if (on)
+ grub_ieee1275_interpret ("cursor-on", 0);
+ else
+ grub_ieee1275_interpret ("cursor-off", 0);
+}
+
+static grub_err_t
+grub_console_init_input (struct grub_term_input *term)
+{
+ grub_ssize_t actual;
+
+ if (grub_ieee1275_get_integer_property (grub_ieee1275_chosen, "stdin", &stdin_ihandle,
+ sizeof stdin_ihandle, &actual)
+ || actual != sizeof stdin_ihandle)
+ return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "cannot find stdin");
+
+ return grub_terminfo_input_init (term);
+}
+
+static grub_err_t
+grub_console_init_output (struct grub_term_output *term)
+{
+ grub_ssize_t actual;
+
+ /* The latest PowerMacs don't actually initialize the screen for us, so we
+ * use this trick to re-open the output device (but we avoid doing this on
+ * platforms where it's known to be broken). */
+ if (! grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_BROKEN_OUTPUT))
+ grub_ieee1275_interpret ("output-device output", 0);
+
+ if (grub_ieee1275_get_integer_property (grub_ieee1275_chosen, "stdout", &stdout_ihandle,
+ sizeof stdout_ihandle, &actual)
+ || actual != sizeof stdout_ihandle)
+ return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "cannot find stdout");
+
+ /* Initialize colors. */
+ if (! grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_CANNOT_SET_COLORS))
+ {
+ unsigned col;
+ for (col = 0; col < ARRAY_SIZE (colors); col++)
+ grub_ieee1275_set_color (stdout_ihandle, col, colors[col].red,
+ colors[col].green, colors[col].blue);
+
+ /* Set the right fg and bg colors. */
+ grub_terminfo_setcolorstate (term, GRUB_TERM_COLOR_NORMAL);
+ }
+
+ grub_console_dimensions ();
+
+ grub_terminfo_output_init (term);
+
+ return 0;
+}
+
+
+
+struct grub_terminfo_input_state grub_console_terminfo_input =
+ {
+ .readkey = readkey
+ };
+
+struct grub_terminfo_output_state grub_console_terminfo_output =
+ {
+ .put = put,
+ .size = { 80, 24 }
+ };
+
+static struct grub_term_input grub_console_term_input =
+ {
+ .name = "console",
+ .init = grub_console_init_input,
+ .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_console_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)
+{
+ const char *type;
+
+ if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_NO_ANSI))
+ type = "dumb";
+ else if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_CURSORONOFF_ANSI_BROKEN))
+ type = "ieee1275-nocursor";
+ else
+ type = "ieee1275";
+ grub_terminfo_init ();
+ grub_terminfo_output_register (&grub_console_term_output, type);
+}
+
+void
+grub_console_fini (void)
+{
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-05 00:41:51 +0000