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https://git.proxmox.com/git/grub2
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a07a81b335
* gentpl.py (cmos): Add powerpc and sparc. * grub-core/Makefile.core.def (datetime): Add lib/ieee1275/cmos.c on powerpc and sparc. * grub-core/lib/cmos_datetime.c (grub_get_datetime) [__powerpc__ || __sparc__]: Rename to grub_get_datetime_cmos. (grub_set_datetime) [__powerpc__ || __sparc__]: Likewise to grub_set_datetime_cmos. * grub-core/lib/ieee1275/cmos.c: New file. * grub-core/lib/ieee1275/datetime.c (no_ieee1275_rtc): New vaiable. (find_rtc): Set no_ieee1275_rtc on error. (grub_get_datetime): Call grub_get_datetime_cmos on error. (grub_set_datetime): Call grub_set_datetime_cmos on error. * include/grub/cmos.h (grub_cmos_read): Return grub_err_t since it may fail. Move value to argument. All users updated (grub_cmos_write): Likewise. (grub_cmos_read) [__powerpc__ || __sparc__]: Rewritten. (grub_cmos_write) [__powerpc__ || __sparc__]: Likewise. * include/grub/datetime.h [__powerpc__ || __sparc__]: Declare grub_get_datetime_cmos and grub_set_datetime_cmos.
113 lines
2.8 KiB
C
113 lines
2.8 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2008, 2009 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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#ifndef GRUB_CMOS_H
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#define GRUB_CMOS_H 1
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#include <grub/types.h>
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#if !defined (__powerpc__) && !defined (__sparc__)
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#include <grub/cpu/io.h>
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#include <grub/cpu/cmos.h>
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#endif
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#define GRUB_CMOS_INDEX_SECOND 0
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#define GRUB_CMOS_INDEX_SECOND_ALARM 1
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#define GRUB_CMOS_INDEX_MINUTE 2
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#define GRUB_CMOS_INDEX_MINUTE_ALARM 3
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#define GRUB_CMOS_INDEX_HOUR 4
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#define GRUB_CMOS_INDEX_HOUR_ALARM 5
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#define GRUB_CMOS_INDEX_DAY_OF_WEEK 6
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#define GRUB_CMOS_INDEX_DAY_OF_MONTH 7
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#define GRUB_CMOS_INDEX_MONTH 8
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#define GRUB_CMOS_INDEX_YEAR 9
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#define GRUB_CMOS_INDEX_STATUS_A 0xA
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#define GRUB_CMOS_INDEX_STATUS_B 0xB
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#define GRUB_CMOS_INDEX_STATUS_C 0xC
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#define GRUB_CMOS_INDEX_STATUS_D 0xD
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#define GRUB_CMOS_STATUS_B_DAYLIGHT 1
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#define GRUB_CMOS_STATUS_B_24HOUR 2
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#define GRUB_CMOS_STATUS_B_BINARY 4
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static inline grub_uint8_t
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grub_bcd_to_num (grub_uint8_t a)
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{
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return ((a >> 4) * 10 + (a & 0xF));
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}
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static inline grub_uint8_t
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grub_num_to_bcd (grub_uint8_t a)
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{
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return (((a / 10) << 4) + (a % 10));
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}
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#if !defined (__powerpc__) && !defined (__sparc__)
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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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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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return GRUB_ERR_NONE;
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}
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#else
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grub_err_t grub_cmos_find_port (void);
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extern volatile grub_uint8_t *grub_cmos_port;
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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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if (!grub_cmos_port)
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{
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grub_err_t err;
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err = grub_cmos_find_port ();
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if (err)
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return err;
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}
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grub_cmos_port[0] = index;
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*val = grub_cmos_port[1];
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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 val)
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{
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if (!grub_cmos_port)
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{
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grub_err_t err;
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err = grub_cmos_find_port ();
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if (err)
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return err;
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}
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grub_cmos_port[0] = index;
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grub_cmos_port[1] = val;
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return GRUB_ERR_NONE;
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}
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#endif
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#endif /* GRUB_CMOS_H */
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