cregit-Linux how code gets into the kernel

Release 4.7 include/linux/apm_bios.h

Directory: include/linux
/*
 * Include file for the interface to an APM BIOS
 * Copyright 1994-2001 Stephen Rothwell (sfr@canb.auug.org.au)
 *
 * This program 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 2, or (at your option) any
 * later version.
 *
 * This program 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.
 */
#ifndef _LINUX_APM_H

#define _LINUX_APM_H

#include <uapi/linux/apm_bios.h>



#define APM_CS		(GDT_ENTRY_APMBIOS_BASE * 8)

#define APM_CS_16	(APM_CS + 8)

#define APM_DS		(APM_CS_16 + 8)

/* Results of APM Installation Check */

#define APM_16_BIT_SUPPORT	0x0001

#define APM_32_BIT_SUPPORT	0x0002

#define APM_IDLE_SLOWS_CLOCK	0x0004

#define APM_BIOS_DISABLED      	0x0008

#define APM_BIOS_DISENGAGED     0x0010

/*
 * Data for APM that is persistent across module unload/load
 */

struct apm_info {
	
struct apm_bios_info	bios;
	
unsigned short		connection_version;
	
int			get_power_status_broken;
	
int			get_power_status_swabinminutes;
	
int			allow_ints;
	
int			forbid_idle;
	
int			realmode_power_off;
	
int			disabled;
};

/*
 * The APM function codes
 */

#define	APM_FUNC_INST_CHECK	0x5300

#define	APM_FUNC_REAL_CONN	0x5301

#define	APM_FUNC_16BIT_CONN	0x5302

#define	APM_FUNC_32BIT_CONN	0x5303

#define	APM_FUNC_DISCONN	0x5304

#define	APM_FUNC_IDLE		0x5305

#define	APM_FUNC_BUSY		0x5306

#define	APM_FUNC_SET_STATE	0x5307

#define	APM_FUNC_ENABLE_PM	0x5308

#define	APM_FUNC_RESTORE_BIOS	0x5309

#define	APM_FUNC_GET_STATUS	0x530a

#define	APM_FUNC_GET_EVENT	0x530b

#define	APM_FUNC_GET_STATE	0x530c

#define	APM_FUNC_ENABLE_DEV_PM	0x530d

#define	APM_FUNC_VERSION	0x530e

#define	APM_FUNC_ENGAGE_PM	0x530f

#define	APM_FUNC_GET_CAP	0x5310

#define	APM_FUNC_RESUME_TIMER	0x5311

#define	APM_FUNC_RESUME_ON_RING	0x5312

#define	APM_FUNC_TIMER		0x5313

/*
 * Function code for APM_FUNC_RESUME_TIMER
 */

#define	APM_FUNC_DISABLE_TIMER	0

#define	APM_FUNC_GET_TIMER	1

#define	APM_FUNC_SET_TIMER	2

/*
 * Function code for APM_FUNC_RESUME_ON_RING
 */

#define	APM_FUNC_DISABLE_RING	0

#define	APM_FUNC_ENABLE_RING	1

#define	APM_FUNC_GET_RING	2

/*
 * Function code for APM_FUNC_TIMER_STATUS
 */

#define	APM_FUNC_TIMER_DISABLE	0

#define	APM_FUNC_TIMER_ENABLE	1

#define	APM_FUNC_TIMER_GET	2

/*
 * in arch/i386/kernel/setup.c
 */
extern struct apm_info	apm_info;

/*
 * This is the "All Devices" ID communicated to the BIOS
 */

#define APM_DEVICE_BALL		((apm_info.connection_version > 0x0100) ? \
                                 APM_DEVICE_ALL : APM_DEVICE_OLD_ALL)
#endif	/* LINUX_APM_H */

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PersonTokensPropCommitsCommitProp
pre-gitpre-git17784.69%330.00%
rusty russellrusty russell125.74%110.00%
linus torvaldslinus torvalds125.74%220.00%
dave jonesdave jones31.44%110.00%
david howellsdavid howells20.96%110.00%
h. peter anvinh. peter anvin20.96%110.00%
steven colesteven cole10.48%110.00%
Total209100.00%10100.00%
Directory: include/linux
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