05aaebfb7b
Support for mtime and further expandability of dir command * include/grub/lib/datetime.h: moved to ... * include/grub/datetime.h: ... moved here and added declaration of grub_unixtime2datetime. All users updated * include/grub/fs.h: new syntax for dir and mtime functionin struct grub_fs * include/grub/fshelp.h: new declarations of GRUB_FSHELP_TYPE_MASK and GRUB_FSHELP_FLAGS_MASK * commands/ls.c (grub_ls_list_files): Write mtime in long format * fs/ext2.c (grub_ext2_dir): use new dir syntax and supply mtime (grub_ext2_mtime): new function * fs/hfsplus.c (grub_hfsplus_dir): use new dir syntax and supply mtime (grub_hfsplus_mtime): new function * fs/ufs.c (GRUB_UFS_ATTR_TYPE): new definition (GRUB_UFS_ATTR_FILE): likewise (GRUB_UFS_ATTR_LNK): likewise (struct grub_ufs_sblock): new fields mtime (grub_ufs_read_inode): new parameter to read inode to a separate buffer all users updated (grub_ufs_dir): mtime support (grub_ufs_mtime): new function * fs/affs.c (grub_affs_dir): use new dir syntax * fs/afs.c (grub_afs_dir): likewise * fs/cpio.c (grub_cpio_dir): likewise * fs/fat.c (grub_fat_find_dir): likewise * fs/hfs.c (grub_hfs_dir): likewise * fs/iso9660.c (grub_iso9660_dir): likewise * fs/jfs.c (grub_jfs_dir): likewise * fs/minix.c (grub_minix_dir): likewise * fs/ntfs.c (grub_ntfs_dir): likewise * fs/reiserfs.c (grub_reiserfs_dir): likewise * fs/sfs.c (grub_sfs_dir): likewise * fs/xfs.c (grub_xfs_dir): likewise * util/hostfs.c (grub_hostfs_dir): likewise * lib/datetime.c: moved to ... * normal/datetime.c: ... moved here (grub_unixtime2datetime): new function * kern/rescue.c (grub_rescue_print_files): use new dir syntax * normal/completition.c (iterate_dir): use new dir syntax * normal/misc.c (grub_normal_print_device_info): tell the last modification time of a volume * kern/fs.c (grub_fs_probe): updated dummy function to use new syntax * conf/common.rmk: added lib/datetime.c to ls.mod * conf/i386-coreboot.rmk (grub_emu_SOURCES): add normal/datetime.c (normal_mod_SOURCES): likewise (datetime_mod_SOURCES): Removed lib/datetime.c * conf/i386-efi.rmk: likewise * conf/i386-ieee1275.rmk: likewise * conf/i386-pc.rmk: likewise * conf/powerpc-ieee1275.rmk: likewise * conf/sparc64-ieee1275.rmk: likewise * conf/x86_64-efi.rmk: likewise
155 lines
3.3 KiB
C
155 lines
3.3 KiB
C
/* kern/i386/datetime.c - x86 CMOS datetime function.
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*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2008 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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#include <grub/datetime.h>
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#include <grub/i386/cmos.h>
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grub_err_t
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grub_get_datetime (struct grub_datetime *datetime)
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{
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int is_bcd, is_12hour;
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grub_uint8_t value, flag;
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flag = grub_cmos_read (GRUB_CMOS_INDEX_STATUS_B);
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is_bcd = ! (flag & GRUB_CMOS_STATUS_B_BINARY);
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value = grub_cmos_read (GRUB_CMOS_INDEX_YEAR);
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if (is_bcd)
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value = grub_bcd_to_num (value);
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datetime->year = value;
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datetime->year += (value < 80) ? 2000 : 1900;
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value = grub_cmos_read (GRUB_CMOS_INDEX_MONTH);
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if (is_bcd)
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value = grub_bcd_to_num (value);
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datetime->month = value;
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value = grub_cmos_read (GRUB_CMOS_INDEX_DAY_OF_MONTH);
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if (is_bcd)
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value = grub_bcd_to_num (value);
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datetime->day = value;
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is_12hour = ! (flag & GRUB_CMOS_STATUS_B_24HOUR);
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value = grub_cmos_read (GRUB_CMOS_INDEX_HOUR);
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if (is_12hour)
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{
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is_12hour = (value & 0x80);
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value &= 0x7F;
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value--;
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}
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if (is_bcd)
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value = grub_bcd_to_num (value);
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if (is_12hour)
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value += 12;
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datetime->hour = value;
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value = grub_cmos_read (GRUB_CMOS_INDEX_MINUTE);
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if (is_bcd)
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value = grub_bcd_to_num (value);
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datetime->minute = value;
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value = grub_cmos_read (GRUB_CMOS_INDEX_SECOND);
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if (is_bcd)
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value = grub_bcd_to_num (value);
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datetime->second = value;
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return 0;
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}
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grub_err_t
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grub_set_datetime (struct grub_datetime *datetime)
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{
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int is_bcd, is_12hour;
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grub_uint8_t value, flag;
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flag = grub_cmos_read (GRUB_CMOS_INDEX_STATUS_B);
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is_bcd = ! (flag & GRUB_CMOS_STATUS_B_BINARY);
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value = ((datetime->year >= 2000) ? datetime->year - 2000 :
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datetime->year - 1900);
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if (is_bcd)
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value = grub_num_to_bcd (value);
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grub_cmos_write (GRUB_CMOS_INDEX_YEAR, value);
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value = datetime->month;
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if (is_bcd)
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value = grub_num_to_bcd (value);
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grub_cmos_write (GRUB_CMOS_INDEX_MONTH, value);
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value = datetime->day;
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if (is_bcd)
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value = grub_num_to_bcd (value);
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grub_cmos_write (GRUB_CMOS_INDEX_DAY_OF_MONTH, value);
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value = datetime->hour;
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is_12hour = (! (flag & GRUB_CMOS_STATUS_B_24HOUR));
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if (is_12hour)
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{
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value++;
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if (value > 12)
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value -= 12;
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else
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is_12hour = 0;
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}
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if (is_bcd)
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value = grub_num_to_bcd (value);
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if (is_12hour)
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value |= 0x80;
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grub_cmos_write (GRUB_CMOS_INDEX_HOUR, value);
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value = datetime->minute;
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if (is_bcd)
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value = grub_num_to_bcd (value);
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grub_cmos_write (GRUB_CMOS_INDEX_MINUTE, value);
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value = datetime->second;
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if (is_bcd)
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value = grub_num_to_bcd (value);
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grub_cmos_write (GRUB_CMOS_INDEX_SECOND, value);
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return 0;
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}
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