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2008-08-15 Bean <bean123ch@gmail.com>

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* conf/i386-pc.rmk (pkglib_MODULES): Add datetime.mod, date.mod
	and datehook.mod.
	(datetime_mod_SOURCES): New macro.
	(datetime_mod_CFLAGS): Likewise.
	(datetime_mod_LDFLAGS): Likewise.
	(date_mod_SOURCES): Likewise.
	(date_mod_CFLAGS): Likewise.
	(date_mod_LDFLAGS): Likewise.
	(datehook_mod_SOURCES): Likewise.
	(datehook_mod_CFLAGS): Likewise.
	(datehook_mod_LDFLAGS): Likewise.

	* conf/i386-coreboot.rmk (pkglib_MODULES): Add datetime.mod, date.mod
	and datehook.mod.
	(datetime_mod_SOURCES): New macro.
	(datetime_mod_CFLAGS): Likewise.
	(datetime_mod_LDFLAGS): Likewise.
	(date_mod_SOURCES): Likewise.
	(date_mod_CFLAGS): Likewise.
	(date_mod_LDFLAGS): Likewise.
	(datehook_mod_SOURCES): Likewise.
	(datehook_mod_CFLAGS): Likewise.
	(datehook_mod_LDFLAGS): Likewise.

	* conf/i386-ieee1275.rmk (pkglib_MODULES): Add datetime.mod, date.mod
	and datehook.mod.
	(datetime_mod_SOURCES): New macro.
	(datetime_mod_CFLAGS): Likewise.
	(datetime_mod_LDFLAGS): Likewise.
	(date_mod_SOURCES): Likewise.
	(date_mod_CFLAGS): Likewise.
	(date_mod_LDFLAGS): Likewise.
	(datehook_mod_SOURCES): Likewise.
	(datehook_mod_CFLAGS): Likewise.
	(datehook_mod_LDFLAGS): Likewise.

	* conf/i386-efi.rmk (pkglib_MODULES): Add datetime.mod, date.mod
	and datehook.mod.
	(datetime_mod_SOURCES): New macro.
	(datetime_mod_CFLAGS): Likewise.
	(datetime_mod_LDFLAGS): Likewise.
	(date_mod_SOURCES): Likewise.
	(date_mod_CFLAGS): Likewise.
	(date_mod_LDFLAGS): Likewise.
	(datehook_mod_SOURCES): Likewise.
	(datehook_mod_CFLAGS): Likewise.
	(datehook_mod_LDFLAGS): Likewise.

	* conf/x86_64-efi.rmk (pkglib_MODULES): Add datetime.mod, date.mod
	and datehook.mod.
	(datetime_mod_SOURCES): New macro.
	(datetime_mod_CFLAGS): Likewise.
	(datetime_mod_LDFLAGS): Likewise.
	(date_mod_SOURCES): Likewise.
	(date_mod_CFLAGS): Likewise.
	(date_mod_LDFLAGS): Likewise.
	(datehook_mod_SOURCES): Likewise.
	(datehook_mod_CFLAGS): Likewise.
	(datehook_mod_LDFLAGS): Likewise.

	* kern/env.c (grub_env_insert): Fix a bug in prevp pointer.

	* commands/date.c: New file.

	* hook/datehook.c: Likewise.

	* include/grub/lib/datetime.h: Likewise.

	* include/grub/i386/cmos.h: Likewise.

	* lib/datetime.c: Likewise.

	* lib/i386/datetime.c: Likewise.

	* lib/efi/datetime.c: Likewise.
This commit is contained in:
bean 2008-08-15 15:39:02 +00:00
parent 0e9242da3a
commit 42ce5170b7
21 changed files with 1799 additions and 86 deletions
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155
lib/i386/datetime.c Normal file
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/* kern/i386/datetime.c - x86 CMOS datetime function.
*
* 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/>.
*/
#include <grub/lib/datetime.h>
#include <grub/i386/cmos.h>
grub_err_t
grub_get_datetime (struct grub_datetime *datetime)
{
int is_bcd, is_12hour;
grub_uint8_t value, flag;
flag = grub_cmos_read (GRUB_CMOS_INDEX_STATUS_B);
is_bcd = ! (flag & GRUB_CMOS_STATUS_B_BINARY);
value = grub_cmos_read (GRUB_CMOS_INDEX_YEAR);
if (is_bcd)
value = grub_bcd_to_num (value);
datetime->year = value;
datetime->year += (value < 80) ? 2000 : 1900;
value = grub_cmos_read (GRUB_CMOS_INDEX_MONTH);
if (is_bcd)
value = grub_bcd_to_num (value);
datetime->month = value;
value = grub_cmos_read (GRUB_CMOS_INDEX_DAY_OF_MONTH);
if (is_bcd)
value = grub_bcd_to_num (value);
datetime->day = value;
is_12hour = ! (flag & GRUB_CMOS_STATUS_B_24HOUR);
value = grub_cmos_read (GRUB_CMOS_INDEX_HOUR);
if (is_12hour)
{
is_12hour = (value & 0x80);
value &= 0x7F;
value--;
}
if (is_bcd)
value = grub_bcd_to_num (value);
if (is_12hour)
value += 12;
datetime->hour = value;
value = grub_cmos_read (GRUB_CMOS_INDEX_MINUTE);
if (is_bcd)
value = grub_bcd_to_num (value);
datetime->minute = value;
value = grub_cmos_read (GRUB_CMOS_INDEX_SECOND);
if (is_bcd)
value = grub_bcd_to_num (value);
datetime->second = value;
return 0;
}
grub_err_t
grub_set_datetime (struct grub_datetime *datetime)
{
int is_bcd, is_12hour;
grub_uint8_t value, flag;
flag = grub_cmos_read (GRUB_CMOS_INDEX_STATUS_B);
is_bcd = ! (flag & GRUB_CMOS_STATUS_B_BINARY);
value = ((datetime->year >= 2000) ? datetime->year - 2000 :
datetime->year - 1900);
if (is_bcd)
value = grub_num_to_bcd (value);
grub_cmos_write (GRUB_CMOS_INDEX_YEAR, value);
value = datetime->month;
if (is_bcd)
value = grub_num_to_bcd (value);
grub_cmos_write (GRUB_CMOS_INDEX_MONTH, value);
value = datetime->day;
if (is_bcd)
value = grub_num_to_bcd (value);
grub_cmos_write (GRUB_CMOS_INDEX_DAY_OF_MONTH, value);
value = datetime->hour;
is_12hour = (! (flag & GRUB_CMOS_STATUS_B_24HOUR));
if (is_12hour)
{
value++;
if (value > 12)
value -= 12;
else
is_12hour = 0;
}
if (is_bcd)
value = grub_num_to_bcd (value);
if (is_12hour)
value |= 0x80;
grub_cmos_write (GRUB_CMOS_INDEX_HOUR, value);
value = datetime->minute;
if (is_bcd)
value = grub_num_to_bcd (value);
grub_cmos_write (GRUB_CMOS_INDEX_MINUTE, value);
value = datetime->second;
if (is_bcd)
value = grub_num_to_bcd (value);
grub_cmos_write (GRUB_CMOS_INDEX_SECOND, value);
return 0;
}