2008-01-19 Robert Millan <rmh@aybabtu.com>

        * include/grub/i386/linuxbios/console.h: Add header protection.
        (grub_keyboard_controller_init): New function prototype.
        * term/i386/pc/at_keyboard.c (KEYBOARD_COMMAND_ISREADY): New macro.
        (KEYBOARD_COMMAND_READ): Likewise.
        (KEYBOARD_COMMAND_WRITE): Likewise.
        (KEYBOARD_SCANCODE_SET1): Likewise.
        (grub_keyboard_controller_write): New function.
        (grub_keyboard_controller_read): Likewise.
        (grub_keyboard_controller_init): Likewise.

        * term/i386/pc/console.c: Include `<grub/machine/machine.h>'.
        (grub_console_init): On coreboot/LinuxBIOS, call
        grub_keyboard_controller_init().

diff --git a/ChangeLog b/ChangeLog
index 120feca65fd7e5c448035e7cd5856e375936219a..776060afcef72f748e955117af40958d54a3e1ab 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,19 @@
+2008-01-19  Robert Millan  <rmh@aybabtu.com>
+
+       * include/grub/i386/linuxbios/console.h: Add header protection.
+       (grub_keyboard_controller_init): New function prototype.
+       * term/i386/pc/at_keyboard.c (KEYBOARD_COMMAND_ISREADY): New macro.
+       (KEYBOARD_COMMAND_READ): Likewise.
+       (KEYBOARD_COMMAND_WRITE): Likewise.
+       (KEYBOARD_SCANCODE_SET1): Likewise.
+       (grub_keyboard_controller_write): New function.
+       (grub_keyboard_controller_read): Likewise.
+       (grub_keyboard_controller_init): Likewise.
+
+       * term/i386/pc/console.c: Include `<grub/machine/machine.h>'.
+       (grub_console_init): On coreboot/LinuxBIOS, call
+       grub_keyboard_controller_init().
+
 2008-01-19  Robert Millan  <rmh@aybabtu.com>
 
        PowerPC changes provided by Pavel Roskin.

diff --git a/include/grub/i386/linuxbios/console.h b/include/grub/i386/linuxbios/console.h
index 305a46d8ea43249e83ea5694da6f063e01479f1a..f4f4810778581cf9b5d454af067c478f506c730b 100644 (file)
--- a/include/grub/i386/linuxbios/console.h
+++ b/include/grub/i386/linuxbios/console.h
@@ -1 +1,25 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2008  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/>.
+ */
+
+#ifndef _GRUB_CONSOLE_MACHINE_LB_HEADER
+#define _GRUB_CONSOLE_MACHINE_LB_HEADER 1
 #include <grub/i386/pc/console.h>
+
+void grub_keyboard_controller_init (void);
+
+#endif /* ! _GRUB_CONSOLE_MACHINE_LB_HEADER */

diff --git a/term/i386/pc/at_keyboard.c b/term/i386/pc/at_keyboard.c
index 5852ec94b705e986b3fbef7724155fecaa9d7536..ad8fc3d2ef0366a1fdc6b47ea0b05743ec9be525 100644 (file)
--- a/term/i386/pc/at_keyboard.c
+++ b/term/i386/pc/at_keyboard.c
@@ -1,6 +1,6 @@
 /*
  *  GRUB  --  GRand Unified Bootloader
- *  Copyright (C) 2007  Free Software Foundation, Inc.
+ *  Copyright (C) 2007,2008  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
@@ -37,6 +37,13 @@
 #define KEYBOARD_REG_DATA      0x60
 #define KEYBOARD_REG_STATUS    0x64
 
+/* Used for sending commands to the controller.  */
+#define KEYBOARD_COMMAND_ISREADY(x)    !((x) & 0x02)
+#define KEYBOARD_COMMAND_READ          0x20
+#define KEYBOARD_COMMAND_WRITE         0x60
+
+#define KEYBOARD_SCANCODE_SET1         0x40
+
 #define KEYBOARD_ISMAKE(x)     !((x) & 0x80)
 #define KEYBOARD_ISREADY(x)    (((x) & 0x01) == 0)
 #define KEYBOARD_SCANCODE(x)   ((x) & 0x7f)
@@ -73,6 +80,28 @@ static char keyboard_map_shift[128] =
   '2', '3',
 };
 
+static void
+grub_keyboard_controller_write (grub_uint8_t c)
+{
+  while (! KEYBOARD_COMMAND_ISREADY (grub_inb (KEYBOARD_REG_STATUS)));
+  grub_outb (KEYBOARD_COMMAND_WRITE, KEYBOARD_REG_STATUS);
+  grub_outb (c, KEYBOARD_REG_DATA);
+}
+
+static grub_uint8_t
+grub_keyboard_controller_read (void)
+{
+  while (! KEYBOARD_COMMAND_ISREADY (grub_inb (KEYBOARD_REG_STATUS)));
+  grub_outb (KEYBOARD_COMMAND_READ, KEYBOARD_REG_STATUS);
+  return grub_inb (KEYBOARD_REG_DATA);
+}
+
+void
+grub_keyboard_controller_init (void)
+{
+  grub_keyboard_controller_write (grub_keyboard_controller_read () | KEYBOARD_SCANCODE_SET1);
+}
+
 /* FIXME: This should become an interrupt service routine.  For now
    it's just used to catch events from control keys.  */
 static void

diff --git a/term/i386/pc/console.c b/term/i386/pc/console.c
index 9fae1181fb97f3d0a79c8a3fb4afbee5b7e5aabd..04a1ae1e479234e2e76abdeeeec0b0921825a863 100644 (file)
--- a/term/i386/pc/console.c
+++ b/term/i386/pc/console.c
@@ -1,6 +1,6 @@
 /*
  *  GRUB  --  GRand Unified Bootloader
- *  Copyright (C) 2002,2003,2005,2007  Free Software Foundation, Inc.
+ *  Copyright (C) 2002,2003,2005,2007,2008  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
@@ -16,6 +16,7 @@
  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <grub/machine/machine.h>
 #include <grub/machine/console.h>
 #include <grub/term.h>
 #include <grub/types.h>
@@ -148,6 +149,10 @@ static struct grub_term grub_console_term =
 void
 grub_console_init (void)
 {
+#ifdef GRUB_MACHINE_LINUXBIOS
+  grub_keyboard_controller_init ();
+#endif
+
   grub_term_register (&grub_console_term);
   grub_term_set_current (&grub_console_term);
 }