69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
#ifndef _ASM_X86_BIOS_H
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#define _ASM_X86_BIOS_H
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/*
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* BIOS layer definitions.
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*
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* Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved.
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*
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* This program 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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 this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/rtc.h>
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#define BIOS_FREQ_BASE 0x01000001
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enum {
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BIOS_FREQ_BASE_PLATFORM = 0,
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BIOS_FREQ_BASE_INTERVAL_TIMER = 1,
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BIOS_FREQ_BASE_REALTIME_CLOCK = 2
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};
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# define BIOS_CALL(result, a0, a1, a2, a3, a4, a5, a6, a7) \
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do { \
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/* XXX - the real call goes here */ \
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result.status = BIOS_STATUS_UNIMPLEMENTED; \
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isrv.v0 = 0; \
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isrv.v1 = 0; \
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} while (0)
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enum {
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BIOS_STATUS_SUCCESS = 0,
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BIOS_STATUS_UNIMPLEMENTED = -1,
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BIOS_STATUS_EINVAL = -2,
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BIOS_STATUS_ERROR = -3
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};
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struct uv_bios_retval {
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/*
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* A zero status value indicates call completed without error.
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* A negative status value indicates reason of call failure.
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* A positive status value indicates success but an
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* informational value should be printed (e.g., "reboot for
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* change to take effect").
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*/
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s64 status;
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u64 v0;
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u64 v1;
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u64 v2;
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};
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extern long
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x86_bios_freq_base(unsigned long which, unsigned long *ticks_per_second,
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unsigned long *drift_info);
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extern const char *x86_bios_strerror(long status);
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#endif /* _ASM_X86_BIOS_H */
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