196 lines
5.4 KiB
Diff
196 lines
5.4 KiB
Diff
From e720300246bd79d0cdb36dc9df4491557ee48663 Mon Sep 17 00:00:00 2001
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From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
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Date: Sun, 24 Feb 2013 19:44:17 +0100
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Subject: [PATCH 154/364] Implement new command cmosdump.
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---
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ChangeLog | 4 +++
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grub-core/Makefile.core.def | 6 ++++
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grub-core/commands/i386/cmosdump.c | 64 ++++++++++++++++++++++++++++++++++++++
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include/grub/cmos.h | 24 +++++++++++---
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include/grub/i386/cmos.h | 2 ++
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include/grub/mips/loongson/cmos.h | 2 ++
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include/grub/mips/qemu_mips/cmos.h | 2 ++
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7 files changed, 100 insertions(+), 4 deletions(-)
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create mode 100644 grub-core/commands/i386/cmosdump.c
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diff --git a/ChangeLog b/ChangeLog
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index 654ebcb..2faef5b 100644
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--- a/ChangeLog
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+++ b/ChangeLog
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@@ -1,3 +1,7 @@
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+2013-02-24 Vladimir Serbinenko <phcoder@gmail.com>
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+
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+ Implement new command cmosdump.
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+
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2013-02-19 Paulo Flabiano Smorigo <pfsmorigo@br.ibm.com>
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Support Openfirmware disks with non-512B sectors.
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diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def
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index c006abf..4b0e6e6 100644
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--- a/grub-core/Makefile.core.def
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+++ b/grub-core/Makefile.core.def
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@@ -510,6 +510,12 @@ module = {
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};
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module = {
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+ name = cmosdump;
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+ common = commands/i386/cmosdump.c;
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+ enable = cmos;
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+};
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+
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+module = {
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name = iorw;
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common = commands/iorw.c;
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enable = x86;
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diff --git a/grub-core/commands/i386/cmosdump.c b/grub-core/commands/i386/cmosdump.c
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new file mode 100644
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index 0000000..952d200
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--- /dev/null
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+++ b/grub-core/commands/i386/cmosdump.c
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@@ -0,0 +1,64 @@
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+/*
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+ * GRUB -- GRand Unified Bootloader
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+ * Copyright (C) 2009,2013 Free Software Foundation, Inc.
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+ *
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+ * GRUB is free software: you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License as published by
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+ * the Free Software Foundation, either version 3 of the License, or
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+ * (at your option) any later version.
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+ *
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+ * GRUB is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU General Public License
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+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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+ */
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+
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+#include <grub/dl.h>
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+#include <grub/command.h>
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+#include <grub/misc.h>
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+#include <grub/cmos.h>
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+#include <grub/i18n.h>
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+
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+GRUB_MOD_LICENSE ("GPLv3+");
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+
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+static grub_err_t
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+grub_cmd_cmosdump (struct grub_command *cmd __attribute__ ((unused)),
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+ int argc __attribute__ ((unused)), char *argv[] __attribute__ ((unused)))
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+{
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+ int i;
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+
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+ for (i = 0; i < 256; i++)
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+ {
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+ grub_err_t err;
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+ grub_uint8_t value;
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+ if ((i & 0xf) == 0)
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+ grub_printf ("%02x: ", i);
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+
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+ err = grub_cmos_read (i, &value);
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+ if (err)
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+ return err;
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+
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+ grub_printf ("%02x ", value);
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+ if ((i & 0xf) == 0xf)
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+ grub_printf ("\n");
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+ }
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+ return GRUB_ERR_NONE;
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+}
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+
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+static grub_command_t cmd;
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+
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+
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+GRUB_MOD_INIT(cmosdump)
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+{
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+ cmd = grub_register_command ("cmosdump", grub_cmd_cmosdump,
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+ 0,
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+ N_("Dump CMOS contents."));
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+}
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+
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+GRUB_MOD_FINI(cmosdump)
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+{
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+ grub_unregister_command (cmd);
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+}
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diff --git a/include/grub/cmos.h b/include/grub/cmos.h
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index 331513c..aa2b233 100644
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--- a/include/grub/cmos.h
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+++ b/include/grub/cmos.h
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@@ -61,16 +61,32 @@ grub_num_to_bcd (grub_uint8_t a)
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static inline grub_err_t
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grub_cmos_read (grub_uint8_t index, grub_uint8_t *val)
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{
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- grub_outb (index, GRUB_CMOS_ADDR_REG);
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- *val = grub_inb (GRUB_CMOS_DATA_REG);
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+ if (index & 0x80)
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+ {
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+ grub_outb (index & 0x7f, GRUB_CMOS_ADDR_REG_HI);
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+ *val = grub_inb (GRUB_CMOS_DATA_REG_HI);
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+ }
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+ else
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+ {
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+ grub_outb (index & 0x7f, GRUB_CMOS_ADDR_REG);
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+ *val = grub_inb (GRUB_CMOS_DATA_REG);
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+ }
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return GRUB_ERR_NONE;
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}
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static inline grub_err_t
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grub_cmos_write (grub_uint8_t index, grub_uint8_t value)
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{
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- grub_outb (index, GRUB_CMOS_ADDR_REG);
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- grub_outb (value, GRUB_CMOS_DATA_REG);
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+ if (index & 0x80)
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+ {
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+ grub_outb (index & 0x7f, GRUB_CMOS_ADDR_REG_HI);
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+ grub_outb (value, GRUB_CMOS_DATA_REG_HI);
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+ }
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+ else
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+ {
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+ grub_outb (index & 0x7f, GRUB_CMOS_ADDR_REG);
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+ grub_outb (value, GRUB_CMOS_DATA_REG);
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+ }
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return GRUB_ERR_NONE;
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}
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#else
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diff --git a/include/grub/i386/cmos.h b/include/grub/i386/cmos.h
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index 8b1fa35..27a2b21 100644
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--- a/include/grub/i386/cmos.h
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+++ b/include/grub/i386/cmos.h
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@@ -24,5 +24,7 @@
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#define GRUB_CMOS_ADDR_REG 0x70
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#define GRUB_CMOS_DATA_REG 0x71
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+#define GRUB_CMOS_ADDR_REG_HI 0x72
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+#define GRUB_CMOS_DATA_REG_HI 0x73
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#endif /* GRUB_CPU_CMOS_H */
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diff --git a/include/grub/mips/loongson/cmos.h b/include/grub/mips/loongson/cmos.h
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index f2a32d7..96d50f2 100644
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--- a/include/grub/mips/loongson/cmos.h
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+++ b/include/grub/mips/loongson/cmos.h
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@@ -24,5 +24,7 @@
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#define GRUB_CMOS_ADDR_REG 0xbfd00070
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#define GRUB_CMOS_DATA_REG 0xbfd00071
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+#define GRUB_CMOS_ADDR_REG 0xbfd00072
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+#define GRUB_CMOS_DATA_REG 0xbfd00073
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#endif /* GRUB_CPU_CMOS_H */
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diff --git a/include/grub/mips/qemu_mips/cmos.h b/include/grub/mips/qemu_mips/cmos.h
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index 4aef40e..0759704 100644
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--- a/include/grub/mips/qemu_mips/cmos.h
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+++ b/include/grub/mips/qemu_mips/cmos.h
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@@ -24,5 +24,7 @@
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#define GRUB_CMOS_ADDR_REG 0xb4000070
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#define GRUB_CMOS_DATA_REG 0xb4000071
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+#define GRUB_CMOS_ADDR_REG_HI 0xb4000072
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+#define GRUB_CMOS_DATA_REG_HI 0xb4000073
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#endif /* GRUB_CPU_CMOS_H */
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--
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1.8.1.4
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