From e720300246bd79d0cdb36dc9df4491557ee48663 Mon Sep 17 00:00:00 2001

From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>

Date: Sun, 24 Feb 2013 19:44:17 +0100

Subject: [PATCH 154/364] 	Implement new command cmosdump.

---

 ChangeLog                          |  4 +++

 grub-core/Makefile.core.def        |  6 ++++

 grub-core/commands/i386/cmosdump.c | 64 ++++++++++++++++++++++++++++++++++++++

 include/grub/cmos.h                | 24 +++++++++++---

 include/grub/i386/cmos.h           |  2 ++

 include/grub/mips/loongson/cmos.h  |  2 ++

 include/grub/mips/qemu_mips/cmos.h |  2 ++

 7 files changed, 100 insertions(+), 4 deletions(-)

 create mode 100644 grub-core/commands/i386/cmosdump.c

diff --git a/ChangeLog b/ChangeLog

index 654ebcb..2faef5b 100644

--- a/ChangeLog

+++ b/ChangeLog

@@ -1,3 +1,7 @@

+2013-02-24  Vladimir Serbinenko  <phcoder@gmail.com>

+

+	Implement new command cmosdump.

+

 2013-02-19  Paulo Flabiano Smorigo <pfsmorigo@br.ibm.com>

 	Support Openfirmware disks with non-512B sectors.

diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def

index c006abf..4b0e6e6 100644

--- a/grub-core/Makefile.core.def

+++ b/grub-core/Makefile.core.def

@@ -510,6 +510,12 @@ module = {

 };

 module = {

+  name = cmosdump;

+  common = commands/i386/cmosdump.c;

+  enable = cmos;

+};

+

+module = {

   name = iorw;

   common = commands/iorw.c;

   enable = x86;

diff --git a/grub-core/commands/i386/cmosdump.c b/grub-core/commands/i386/cmosdump.c

new file mode 100644

index 0000000..952d200

--- /dev/null

+++ b/grub-core/commands/i386/cmosdump.c

@@ -0,0 +1,64 @@

+/*

+ *  GRUB  --  GRand Unified Bootloader

+ *  Copyright (C) 2009,2013  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/dl.h>

+#include <grub/command.h>

+#include <grub/misc.h>

+#include <grub/cmos.h>

+#include <grub/i18n.h>

+

+GRUB_MOD_LICENSE ("GPLv3+");

+

+static grub_err_t

+grub_cmd_cmosdump (struct grub_command *cmd __attribute__ ((unused)),

+		   int argc __attribute__ ((unused)), char *argv[] __attribute__ ((unused)))

+{

+  int i;

+

+  for (i = 0; i < 256; i++)

+    {

+      grub_err_t err;

+      grub_uint8_t value;

+      if ((i & 0xf) == 0)

+	grub_printf ("%02x: ", i);

+

+      err = grub_cmos_read (i, &value);

+      if (err)

+	return err;

+

+      grub_printf ("%02x ", value);

+      if ((i & 0xf) == 0xf)

+	grub_printf ("\n");

+    }

+  return GRUB_ERR_NONE;

+}

+

+static grub_command_t cmd;

+

+

+GRUB_MOD_INIT(cmosdump)

+{

+  cmd = grub_register_command ("cmosdump", grub_cmd_cmosdump,

+			       0,

+			       N_("Dump CMOS contents."));

+}

+

+GRUB_MOD_FINI(cmosdump)

+{

+  grub_unregister_command (cmd);

+}

diff --git a/include/grub/cmos.h b/include/grub/cmos.h

index 331513c..aa2b233 100644

--- a/include/grub/cmos.h

+++ b/include/grub/cmos.h

@@ -61,16 +61,32 @@ grub_num_to_bcd (grub_uint8_t a)

 static inline grub_err_t

 grub_cmos_read (grub_uint8_t index, grub_uint8_t *val)

 {

-  grub_outb (index, GRUB_CMOS_ADDR_REG);

-  *val = grub_inb (GRUB_CMOS_DATA_REG);

+  if (index & 0x80)

+    {

+      grub_outb (index & 0x7f, GRUB_CMOS_ADDR_REG_HI);

+      *val = grub_inb (GRUB_CMOS_DATA_REG_HI);

+    }

+  else

+    {

+      grub_outb (index & 0x7f, GRUB_CMOS_ADDR_REG);

+      *val = grub_inb (GRUB_CMOS_DATA_REG);

+    }

   return GRUB_ERR_NONE;

 }

 static inline grub_err_t

 grub_cmos_write (grub_uint8_t index, grub_uint8_t value)

 {

-  grub_outb (index, GRUB_CMOS_ADDR_REG);

-  grub_outb (value, GRUB_CMOS_DATA_REG);

+  if (index & 0x80)

+    {

+      grub_outb (index & 0x7f, GRUB_CMOS_ADDR_REG_HI);

+      grub_outb (value, GRUB_CMOS_DATA_REG_HI);

+    }

+  else

+    {

+      grub_outb (index & 0x7f, GRUB_CMOS_ADDR_REG);

+      grub_outb (value, GRUB_CMOS_DATA_REG);

+    }

   return GRUB_ERR_NONE;

 }

 #else

diff --git a/include/grub/i386/cmos.h b/include/grub/i386/cmos.h

index 8b1fa35..27a2b21 100644

--- a/include/grub/i386/cmos.h

+++ b/include/grub/i386/cmos.h

@@ -24,5 +24,7 @@

 #define GRUB_CMOS_ADDR_REG	0x70

 #define GRUB_CMOS_DATA_REG	0x71

+#define GRUB_CMOS_ADDR_REG_HI	0x72

+#define GRUB_CMOS_DATA_REG_HI	0x73

 #endif /* GRUB_CPU_CMOS_H */

diff --git a/include/grub/mips/loongson/cmos.h b/include/grub/mips/loongson/cmos.h

index f2a32d7..96d50f2 100644

--- a/include/grub/mips/loongson/cmos.h

+++ b/include/grub/mips/loongson/cmos.h

@@ -24,5 +24,7 @@

 #define GRUB_CMOS_ADDR_REG	0xbfd00070

 #define GRUB_CMOS_DATA_REG	0xbfd00071

+#define GRUB_CMOS_ADDR_REG	0xbfd00072

+#define GRUB_CMOS_DATA_REG	0xbfd00073

 #endif /* GRUB_CPU_CMOS_H */

diff --git a/include/grub/mips/qemu_mips/cmos.h b/include/grub/mips/qemu_mips/cmos.h

index 4aef40e..0759704 100644

--- a/include/grub/mips/qemu_mips/cmos.h

+++ b/include/grub/mips/qemu_mips/cmos.h

@@ -24,5 +24,7 @@

 #define GRUB_CMOS_ADDR_REG	0xb4000070

 #define GRUB_CMOS_DATA_REG	0xb4000071

+#define GRUB_CMOS_ADDR_REG_HI	0xb4000072

+#define GRUB_CMOS_DATA_REG_HI	0xb4000073

 #endif /* GRUB_CPU_CMOS_H */

-- 

1.8.1.4