Make apm an MI backend to be used by the i386 bios implementation and the
acpi implementation. Based on work by jmcneil.
This commit is contained in:
christos
parent
ff1066c12a
commit
9ad7368bb4
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@ -0,0 +1,972 @@
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/* $NetBSD: apm.c,v 1.3 2006/07/08 20:22:19 christos Exp $ */
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/*-
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* Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by John Kohl and Christopher G. Demetriou.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* from: sys/arch/i386/i386/apm.c,v 1.49 2000/05/08
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: apm.c,v 1.3 2006/07/08 20:22:19 christos Exp $");
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#include "opt_apm.h"
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#ifdef APM_NOIDLE
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#error APM_NOIDLE option deprecated; use APM_NO_IDLE instead
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#endif
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#if defined(DEBUG) && !defined(APMDEBUG)
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#define APMDEBUG
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#endif
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/signalvar.h>
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#include <sys/kernel.h>
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#include <sys/proc.h>
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#include <sys/kthread.h>
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#include <sys/lock.h>
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#include <sys/user.h>
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#include <sys/malloc.h>
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#include <sys/device.h>
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#include <sys/fcntl.h>
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#include <sys/ioctl.h>
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#include <sys/select.h>
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#include <sys/poll.h>
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#include <sys/conf.h>
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#include <dev/apm/apmvar.h>
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#include <machine/stdarg.h>
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#ifdef APMDEBUG
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#define DPRINTF(f, x) do { if (apmdebug & (f)) printf x; } while (0)
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#ifdef APMDEBUG_VALUE
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int apmdebug = APMDEBUG_VALUE;
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#else
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int apmdebug = 0;
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#endif /* APMDEBUG_VALUE */
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#else
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#define DPRINTF(f, x) /**/
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#endif /* APMDEBUG */
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#define SCFLAG_OREAD 0x0000001
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#define SCFLAG_OWRITE 0x0000002
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#define SCFLAG_OPEN (SCFLAG_OREAD|SCFLAG_OWRITE)
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#define APMUNIT(dev) (minor(dev)&0xf0)
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#define APM(dev) (minor(dev)&0x0f)
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#define APM_NORMAL 0
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#define APM_CTL 8
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/*
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* A brief note on the locking protocol: it's very simple; we
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* assert an exclusive lock any time thread context enters the
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* APM module. This is both the APM thread itself, as well as
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* user context.
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*/
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#define APM_LOCK(apmsc) \
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(void) lockmgr(&(apmsc)->sc_lock, LK_EXCLUSIVE, NULL)
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#define APM_UNLOCK(apmsc) \
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(void) lockmgr(&(apmsc)->sc_lock, LK_RELEASE, NULL)
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static void apm_event_handle(struct apm_softc *, u_int, u_int);
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static void apm_periodic_check(struct apm_softc *);
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static void apm_create_thread(void *);
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static void apm_thread(void *);
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static void apm_perror(const char *, int, ...)
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__attribute__((__format__(__printf__,1,3)));
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#ifdef APM_POWER_PRINT
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static void apm_power_print(struct apm_softc *, struct apm_power_info *);
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#endif
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static int apm_record_event(struct apm_softc *, u_int);
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static void apm_set_ver(struct apm_softc *);
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static void apm_standby(struct apm_softc *);
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static void apm_suspend(struct apm_softc *);
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static void apm_resume(struct apm_softc *, u_int, u_int);
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extern struct cfdriver apm_cd;
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dev_type_open(apmopen);
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dev_type_close(apmclose);
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dev_type_ioctl(apmioctl);
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dev_type_poll(apmpoll);
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dev_type_kqfilter(apmkqfilter);
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const struct cdevsw apm_cdevsw = {
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apmopen, apmclose, noread, nowrite, apmioctl,
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nostop, notty, apmpoll, nommap, apmkqfilter,
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};
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/* configurable variables */
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int apm_bogus_bios = 0;
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#ifdef APM_DISABLE
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int apm_enabled = 0;
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#else
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int apm_enabled = 1;
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#endif
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#ifdef APM_NO_IDLE
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int apm_do_idle = 0;
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#else
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int apm_do_idle = 1;
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#endif
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#ifdef APM_NO_STANDBY
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int apm_do_standby = 0;
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#else
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int apm_do_standby = 1;
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#endif
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#ifdef APM_V10_ONLY
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int apm_v11_enabled = 0;
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#else
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int apm_v11_enabled = 1;
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#endif
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#ifdef APM_NO_V12
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int apm_v12_enabled = 0;
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#else
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int apm_v12_enabled = 1;
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#endif
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#ifdef APM_FORCE_64K_SEGMENTS
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int apm_force_64k_segments = 1;
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#else
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int apm_force_64k_segments = 0;
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#endif
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#ifdef APM_ALLOW_BOGUS_SEGMENTS
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int apm_allow_bogus_segments = 1;
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#else
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int apm_allow_bogus_segments = 0;
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#endif
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/* variables used during operation (XXX cgd) */
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u_char apm_majver, apm_minver;
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int apm_inited;
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int apm_standbys, apm_userstandbys, apm_suspends, apm_battlow;
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int apm_damn_fool_bios, apm_op_inprog;
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int apm_evindex;
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static int apm_spl; /* saved spl while suspended */
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const char *
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apm_strerror(int code)
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{
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switch (code) {
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case APM_ERR_PM_DISABLED:
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return ("power management disabled");
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case APM_ERR_REALALREADY:
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return ("real mode interface already connected");
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case APM_ERR_NOTCONN:
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return ("interface not connected");
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case APM_ERR_16ALREADY:
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return ("16-bit interface already connected");
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case APM_ERR_16NOTSUPP:
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return ("16-bit interface not supported");
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case APM_ERR_32ALREADY:
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return ("32-bit interface already connected");
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case APM_ERR_32NOTSUPP:
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return ("32-bit interface not supported");
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case APM_ERR_UNRECOG_DEV:
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return ("unrecognized device ID");
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case APM_ERR_ERANGE:
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return ("parameter out of range");
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case APM_ERR_NOTENGAGED:
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return ("interface not engaged");
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case APM_ERR_UNABLE:
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return ("unable to enter requested state");
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case APM_ERR_NOEVENTS:
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return ("no pending events");
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case APM_ERR_NOT_PRESENT:
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return ("no APM present");
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default:
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return ("unknown error code");
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}
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}
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static void
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apm_perror(const char *str, int errinfo, ...) /* XXX cgd */
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{
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va_list ap;
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printf("APM ");
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va_start(ap, errinfo);
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vprintf(str, ap); /* XXX cgd */
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va_end(ap);
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printf(": %s\n", apm_strerror(errinfo));
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}
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#ifdef APM_POWER_PRINT
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static void
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apm_power_print(struct apm_softc *sc, struct apm_power_info *pi)
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{
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if (pi->battery_life != APM_BATT_LIFE_UNKNOWN) {
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printf("%s: battery life expectancy: %d%%\n",
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sc->sc_dev.dv_xname, pi->battery_life);
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}
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printf("%s: A/C state: ", sc->sc_dev.dv_xname);
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switch (pi->ac_state) {
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case APM_AC_OFF:
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printf("off\n");
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break;
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case APM_AC_ON:
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printf("on\n");
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break;
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case APM_AC_BACKUP:
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printf("backup power\n");
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break;
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default:
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case APM_AC_UNKNOWN:
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printf("unknown\n");
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break;
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}
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printf("%s: battery charge state:", sc->sc_dev.dv_xname);
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if (apm_minver == 0)
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switch (pi->battery_state) {
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case APM_BATT_HIGH:
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printf("high\n");
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break;
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case APM_BATT_LOW:
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printf("low\n");
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break;
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case APM_BATT_CRITICAL:
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printf("critical\n");
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break;
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case APM_BATT_CHARGING:
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printf("charging\n");
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break;
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case APM_BATT_UNKNOWN:
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printf("unknown\n");
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break;
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default:
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printf("undecoded state %x\n", pi->battery_state);
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break;
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}
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else if (apm_minver >= 1) {
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if (pi->battery_flags & APM_BATT_FLAG_NO_SYSTEM_BATTERY)
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printf(" no battery");
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else {
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if (pi->battery_flags & APM_BATT_FLAG_HIGH)
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printf(" high");
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if (pi->battery_flags & APM_BATT_FLAG_LOW)
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printf(" low");
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if (pi->battery_flags & APM_BATT_FLAG_CRITICAL)
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printf(" critical");
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if (pi->battery_flags & APM_BATT_FLAG_CHARGING)
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printf(" charging");
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}
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printf("\n");
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if (pi->remaining_valid) {
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printf("%s: estimated ", sc->sc_dev.dv_xname);
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if (pi->remaining_minutes / 60)
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printf("%dh ", pi->remaining_minutes / 60);
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printf("%dm\n", pi->remaining_minutes % 60);
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}
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}
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return;
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}
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#endif
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static void
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apm_suspend(struct apm_softc *sc)
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{
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int error;
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if (sc->sc_power_state == PWR_SUSPEND) {
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#ifdef APMDEBUG
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printf("%s: apm_suspend: already suspended?\n",
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sc->sc_dev.dv_xname);
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#endif
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return;
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}
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sc->sc_power_state = PWR_SUSPEND;
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if (!(sc->sc_hwflags & APM_F_DONT_RUN_HOOKS)) {
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dopowerhooks(PWR_SOFTSUSPEND);
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apm_spl = splhigh();
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dopowerhooks(PWR_SUSPEND);
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}
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error = (*sc->sc_ops->aa_set_powstate)(sc->sc_cookie, APM_DEV_ALLDEVS,
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APM_SYS_SUSPEND);
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if (error)
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apm_resume(sc, 0, 0);
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}
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static void
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apm_standby(struct apm_softc *sc)
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{
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int error;
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if (sc->sc_power_state == PWR_STANDBY) {
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#ifdef APMDEBUG
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printf("%s: apm_standby: already standing by?\n",
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sc->sc_dev.dv_xname);
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#endif
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return;
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}
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sc->sc_power_state = PWR_STANDBY;
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if (!(sc->sc_hwflags & APM_F_DONT_RUN_HOOKS)) {
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dopowerhooks(PWR_SOFTSTANDBY);
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apm_spl = splhigh();
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dopowerhooks(PWR_STANDBY);
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}
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error = (*sc->sc_ops->aa_set_powstate)(sc->sc_cookie, APM_DEV_ALLDEVS,
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APM_SYS_STANDBY);
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if (error)
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apm_resume(sc, 0, 0);
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}
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static void
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apm_resume(struct apm_softc *sc, u_int event_type, u_int event_info)
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{
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if (sc->sc_power_state == PWR_RESUME) {
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#ifdef APMDEBUG
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printf("%s: apm_resume: already running?\n",
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sc->sc_dev.dv_xname);
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#endif
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return;
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}
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sc->sc_power_state = PWR_RESUME;
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#ifdef TIMER_FREQ
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/*
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* Some system requires its clock to be initialized after hybernation.
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*/
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initrtclock(TIMER_FREQ);
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#endif
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inittodr(time_second);
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if (!(sc->sc_hwflags & APM_F_DONT_RUN_HOOKS)) {
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dopowerhooks(PWR_RESUME);
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splx(apm_spl);
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dopowerhooks(PWR_SOFTRESUME);
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}
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apm_record_event(sc, event_type);
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}
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/*
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* return 0 if the user will notice and handle the event,
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* return 1 if the kernel driver should do so.
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*/
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static int
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apm_record_event(struct apm_softc *sc, u_int event_type)
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{
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struct apm_event_info *evp;
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if ((sc->sc_flags & SCFLAG_OPEN) == 0)
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return 1; /* no user waiting */
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if (sc->sc_event_count == APM_NEVENTS)
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return 1; /* overflow */
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evp = &sc->sc_event_list[sc->sc_event_ptr];
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sc->sc_event_count++;
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sc->sc_event_ptr++;
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sc->sc_event_ptr %= APM_NEVENTS;
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evp->type = event_type;
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evp->index = ++apm_evindex;
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selnotify(&sc->sc_rsel, 0);
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return (sc->sc_flags & SCFLAG_OWRITE) ? 0 : 1; /* user may handle */
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}
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static void
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apm_event_handle(struct apm_softc *sc, u_int event_code, u_int event_info)
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{
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int error;
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const char *code;
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struct apm_power_info pi;
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switch (event_code) {
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case APM_USER_STANDBY_REQ:
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DPRINTF(APMDEBUG_EVENTS, ("apmev: user standby request\n"));
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if (apm_do_standby) {
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if (apm_op_inprog == 0 && apm_record_event(sc, event_code))
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apm_userstandbys++;
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apm_op_inprog++;
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(void)(*sc->sc_ops->aa_set_powstate)(sc->sc_cookie,
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APM_DEV_ALLDEVS, APM_LASTREQ_INPROG);
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} else {
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(void)(*sc->sc_ops->aa_set_powstate)(sc->sc_cookie,
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APM_DEV_ALLDEVS, APM_LASTREQ_REJECTED);
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/* in case BIOS hates being spurned */
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(*sc->sc_ops->aa_enable)(sc->sc_cookie, 1);
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}
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break;
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case APM_STANDBY_REQ:
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DPRINTF(APMDEBUG_EVENTS, ("apmev: system standby request\n"));
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if (apm_standbys || apm_suspends) {
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DPRINTF(APMDEBUG_EVENTS | APMDEBUG_ANOM,
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("damn fool BIOS did not wait for answer\n"));
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/* just give up the fight */
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apm_damn_fool_bios = 1;
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}
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if (apm_do_standby) {
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if (apm_op_inprog == 0 &&
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apm_record_event(sc, event_code))
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apm_standbys++;
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apm_op_inprog++;
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(void)(*sc->sc_ops->aa_set_powstate)(sc->sc_cookie,
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APM_DEV_ALLDEVS, APM_LASTREQ_INPROG);
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} else {
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(void)(*sc->sc_ops->aa_set_powstate)(sc->sc_cookie,
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APM_DEV_ALLDEVS, APM_LASTREQ_REJECTED);
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/* in case BIOS hates being spurned */
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(*sc->sc_ops->aa_enable)(sc->sc_cookie, 1);
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}
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break;
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|
||||
case APM_USER_SUSPEND_REQ:
|
||||
DPRINTF(APMDEBUG_EVENTS, ("apmev: user suspend request\n"));
|
||||
if (apm_op_inprog == 0 && apm_record_event(sc, event_code))
|
||||
apm_suspends++;
|
||||
apm_op_inprog++;
|
||||
(void)(*sc->sc_ops->aa_set_powstate)(sc->sc_cookie,
|
||||
APM_DEV_ALLDEVS, APM_LASTREQ_INPROG);
|
||||
break;
|
||||
|
||||
case APM_SUSPEND_REQ:
|
||||
DPRINTF(APMDEBUG_EVENTS, ("apmev: system suspend request\n"));
|
||||
if (apm_standbys || apm_suspends) {
|
||||
DPRINTF(APMDEBUG_EVENTS | APMDEBUG_ANOM,
|
||||
("damn fool BIOS did not wait for answer\n"));
|
||||
/* just give up the fight */
|
||||
apm_damn_fool_bios = 1;
|
||||
}
|
||||
if (apm_op_inprog == 0 && apm_record_event(sc, event_code))
|
||||
apm_suspends++;
|
||||
apm_op_inprog++;
|
||||
(void)(*sc->sc_ops->aa_set_powstate)(sc->sc_cookie,
|
||||
APM_DEV_ALLDEVS, APM_LASTREQ_INPROG);
|
||||
break;
|
||||
|
||||
case APM_POWER_CHANGE:
|
||||
DPRINTF(APMDEBUG_EVENTS, ("apmev: power status change\n"));
|
||||
error = (*sc->sc_ops->aa_get_powstat)(sc->sc_cookie, 0, &pi);
|
||||
#ifdef APM_POWER_PRINT
|
||||
/* only print if nobody is catching events. */
|
||||
if (error == 0 &&
|
||||
(sc->sc_flags & (SCFLAG_OREAD|SCFLAG_OWRITE)) == 0)
|
||||
apm_power_print(sc, &pi);
|
||||
#endif
|
||||
apm_record_event(sc, event_code);
|
||||
break;
|
||||
|
||||
case APM_NORMAL_RESUME:
|
||||
DPRINTF(APMDEBUG_EVENTS, ("apmev: resume system\n"));
|
||||
apm_resume(sc, event_code, event_info);
|
||||
break;
|
||||
|
||||
case APM_CRIT_RESUME:
|
||||
DPRINTF(APMDEBUG_EVENTS, ("apmev: critical resume system"));
|
||||
apm_resume(sc, event_code, event_info);
|
||||
break;
|
||||
|
||||
case APM_SYS_STANDBY_RESUME:
|
||||
DPRINTF(APMDEBUG_EVENTS, ("apmev: system standby resume\n"));
|
||||
apm_resume(sc, event_code, event_info);
|
||||
break;
|
||||
|
||||
case APM_UPDATE_TIME:
|
||||
DPRINTF(APMDEBUG_EVENTS, ("apmev: update time\n"));
|
||||
apm_resume(sc, event_code, event_info);
|
||||
break;
|
||||
|
||||
case APM_CRIT_SUSPEND_REQ:
|
||||
DPRINTF(APMDEBUG_EVENTS, ("apmev: critical system suspend\n"));
|
||||
apm_record_event(sc, event_code);
|
||||
apm_suspend(sc);
|
||||
break;
|
||||
|
||||
case APM_BATTERY_LOW:
|
||||
DPRINTF(APMDEBUG_EVENTS, ("apmev: battery low\n"));
|
||||
apm_battlow++;
|
||||
apm_record_event(sc, event_code);
|
||||
break;
|
||||
|
||||
case APM_CAP_CHANGE:
|
||||
DPRINTF(APMDEBUG_EVENTS, ("apmev: capability change\n"));
|
||||
if (apm_minver < 2) {
|
||||
DPRINTF(APMDEBUG_EVENTS, ("apm: unexpected event\n"));
|
||||
} else {
|
||||
u_int numbatts, capflags;
|
||||
(*sc->sc_ops->aa_get_capabilities)(sc->sc_cookie,
|
||||
&numbatts, &capflags);
|
||||
(*sc->sc_ops->aa_get_powstat)(sc->sc_cookie, 0, &pi);
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
switch (event_code >> 8) {
|
||||
case 0:
|
||||
code = "reserved system";
|
||||
break;
|
||||
case 1:
|
||||
code = "reserved device";
|
||||
break;
|
||||
case 2:
|
||||
code = "OEM defined";
|
||||
break;
|
||||
default:
|
||||
code = "reserved";
|
||||
break;
|
||||
}
|
||||
printf("APM: %s event code %x\n", code, event_code);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
apm_periodic_check(struct apm_softc *sc)
|
||||
{
|
||||
int error;
|
||||
u_int event_code, event_info;
|
||||
|
||||
|
||||
/*
|
||||
* tell the BIOS we're working on it, if asked to do a
|
||||
* suspend/standby
|
||||
*/
|
||||
if (apm_op_inprog)
|
||||
(*sc->sc_ops->aa_set_powstate)(sc->sc_cookie, APM_DEV_ALLDEVS,
|
||||
APM_LASTREQ_INPROG);
|
||||
|
||||
while ((error = (*sc->sc_ops->aa_get_event)(sc->sc_cookie, &event_code,
|
||||
&event_info)) == 0 && !apm_damn_fool_bios)
|
||||
apm_event_handle(sc, event_code, event_info);
|
||||
|
||||
if (error != APM_ERR_NOEVENTS)
|
||||
apm_perror("get event", error);
|
||||
if (apm_suspends) {
|
||||
apm_op_inprog = 0;
|
||||
apm_suspend(sc);
|
||||
} else if (apm_standbys || apm_userstandbys) {
|
||||
apm_op_inprog = 0;
|
||||
apm_standby(sc);
|
||||
}
|
||||
apm_suspends = apm_standbys = apm_battlow = apm_userstandbys = 0;
|
||||
apm_damn_fool_bios = 0;
|
||||
}
|
||||
|
||||
static void
|
||||
apm_set_ver(struct apm_softc *sc)
|
||||
{
|
||||
|
||||
if (apm_v12_enabled &&
|
||||
APM_MAJOR_VERS(sc->sc_vers) == 1 &&
|
||||
APM_MINOR_VERS(sc->sc_vers) == 2) {
|
||||
apm_majver = 1;
|
||||
apm_minver = 2;
|
||||
goto ok;
|
||||
}
|
||||
|
||||
if (apm_v11_enabled &&
|
||||
APM_MAJOR_VERS(sc->sc_vers) == 1 &&
|
||||
APM_MINOR_VERS(sc->sc_vers) == 1) {
|
||||
apm_majver = 1;
|
||||
apm_minver = 1;
|
||||
} else {
|
||||
apm_majver = 1;
|
||||
apm_minver = 0;
|
||||
}
|
||||
ok:
|
||||
printf("Power Management spec V%d.%d", apm_majver, apm_minver);
|
||||
apm_inited = 1;
|
||||
if (sc->sc_detail & APM_IDLE_SLOWS) {
|
||||
#ifdef DIAGNOSTIC
|
||||
/* not relevant often */
|
||||
printf(" (slowidle)");
|
||||
#endif
|
||||
/* leave apm_do_idle at its user-configured setting */
|
||||
} else
|
||||
apm_do_idle = 0;
|
||||
#ifdef DIAGNOSTIC
|
||||
if (sc->sc_detail & APM_BIOS_PM_DISABLED)
|
||||
printf(" (BIOS mgmt disabled)");
|
||||
if (sc->sc_detail & APM_BIOS_PM_DISENGAGED)
|
||||
printf(" (BIOS managing devices)");
|
||||
#endif
|
||||
}
|
||||
|
||||
int
|
||||
apm_match(void)
|
||||
{
|
||||
static int got;
|
||||
return !got++;
|
||||
}
|
||||
|
||||
void
|
||||
apm_attach(struct apm_softc *sc)
|
||||
{
|
||||
struct apm_power_info pinfo;
|
||||
u_int numbatts, capflags;
|
||||
int error;
|
||||
|
||||
printf(": ");
|
||||
|
||||
switch ((APM_MAJOR_VERS(sc->sc_vers) << 8) + APM_MINOR_VERS(sc->sc_vers)) {
|
||||
case 0x0100:
|
||||
apm_v11_enabled = 0;
|
||||
apm_v12_enabled = 0;
|
||||
break;
|
||||
case 0x0101:
|
||||
apm_v12_enabled = 0;
|
||||
/* fall through */
|
||||
case 0x0102:
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
apm_set_ver(sc); /* prints version info */
|
||||
printf("\n");
|
||||
if (apm_minver >= 2)
|
||||
(*sc->sc_ops->aa_get_capabilities)(sc->sc_cookie, &numbatts,
|
||||
&capflags);
|
||||
|
||||
/*
|
||||
* enable power management
|
||||
*/
|
||||
(*sc->sc_ops->aa_enable)(sc->sc_cookie, 1);
|
||||
|
||||
error = (*sc->sc_ops->aa_get_powstat)(sc->sc_cookie, 0, &pinfo);
|
||||
if (error == 0) {
|
||||
#ifdef APM_POWER_PRINT
|
||||
apm_power_print(apmsc, &pinfo);
|
||||
#endif
|
||||
} else
|
||||
apm_perror("get power status", error);
|
||||
if (sc->sc_ops->aa_cpu_busy)
|
||||
(*sc->sc_ops->aa_cpu_busy)(sc->sc_cookie);
|
||||
|
||||
lockinit(&sc->sc_lock, PWAIT, "apmlk", 0, 0);
|
||||
|
||||
/* Initial state is `resumed'. */
|
||||
sc->sc_power_state = PWR_RESUME;
|
||||
|
||||
/* Do an initial check. */
|
||||
apm_periodic_check(sc);
|
||||
|
||||
/*
|
||||
* Create a kernel thread to periodically check for APM events,
|
||||
* and notify other subsystems when they occur.
|
||||
*/
|
||||
kthread_create(apm_create_thread, sc);
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
void
|
||||
apm_create_thread(void *arg)
|
||||
{
|
||||
struct apm_softc *sc = arg;
|
||||
|
||||
if (kthread_create1(apm_thread, sc, &sc->sc_thread,
|
||||
"%s", sc->sc_dev.dv_xname) == 0)
|
||||
return;
|
||||
|
||||
/*
|
||||
* We were unable to create the APM thread; bail out.
|
||||
*/
|
||||
if (sc->sc_ops->aa_disconnect)
|
||||
(*sc->sc_ops->aa_disconnect)(sc->sc_cookie);
|
||||
printf("%s: unable to create thread, kernel APM support disabled\n",
|
||||
sc->sc_dev.dv_xname);
|
||||
}
|
||||
|
||||
void
|
||||
apm_thread(void *arg)
|
||||
{
|
||||
struct apm_softc *apmsc = arg;
|
||||
|
||||
/*
|
||||
* Loop forever, doing a periodic check for APM events.
|
||||
*/
|
||||
for (;;) {
|
||||
APM_LOCK(apmsc);
|
||||
apm_periodic_check(apmsc);
|
||||
APM_UNLOCK(apmsc);
|
||||
(void) tsleep(apmsc, PWAIT, "apmev", (8 * hz) / 7);
|
||||
}
|
||||
}
|
||||
|
||||
int
|
||||
apmopen(dev_t dev, int flag, int mode, struct lwp *l)
|
||||
{
|
||||
int unit = APMUNIT(dev);
|
||||
int ctl = APM(dev);
|
||||
int error = 0;
|
||||
struct apm_softc *sc;
|
||||
|
||||
if (unit >= apm_cd.cd_ndevs)
|
||||
return ENXIO;
|
||||
sc = apm_cd.cd_devs[unit];
|
||||
if (!sc)
|
||||
return ENXIO;
|
||||
|
||||
if (!apm_inited)
|
||||
return ENXIO;
|
||||
|
||||
DPRINTF(APMDEBUG_DEVICE,
|
||||
("apmopen: pid %d flag %x mode %x\n", l->l_proc->p_pid, flag, mode));
|
||||
|
||||
APM_LOCK(sc);
|
||||
switch (ctl) {
|
||||
case APM_CTL:
|
||||
if (!(flag & FWRITE)) {
|
||||
error = EINVAL;
|
||||
break;
|
||||
}
|
||||
if (sc->sc_flags & SCFLAG_OWRITE) {
|
||||
error = EBUSY;
|
||||
break;
|
||||
}
|
||||
sc->sc_flags |= SCFLAG_OWRITE;
|
||||
break;
|
||||
case APM_NORMAL:
|
||||
if (!(flag & FREAD) || (flag & FWRITE)) {
|
||||
error = EINVAL;
|
||||
break;
|
||||
}
|
||||
sc->sc_flags |= SCFLAG_OREAD;
|
||||
break;
|
||||
default:
|
||||
error = ENXIO;
|
||||
break;
|
||||
}
|
||||
APM_UNLOCK(sc);
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
int
|
||||
apmclose(dev_t dev, int flag, int mode, struct lwp *l)
|
||||
{
|
||||
struct apm_softc *sc = apm_cd.cd_devs[APMUNIT(dev)];
|
||||
int ctl = APM(dev);
|
||||
|
||||
DPRINTF(APMDEBUG_DEVICE,
|
||||
("apmclose: pid %d flag %x mode %x\n", l->l_proc->p_pid, flag, mode));
|
||||
|
||||
APM_LOCK(sc);
|
||||
switch (ctl) {
|
||||
case APM_CTL:
|
||||
sc->sc_flags &= ~SCFLAG_OWRITE;
|
||||
break;
|
||||
case APM_NORMAL:
|
||||
sc->sc_flags &= ~SCFLAG_OREAD;
|
||||
break;
|
||||
}
|
||||
if ((sc->sc_flags & SCFLAG_OPEN) == 0) {
|
||||
sc->sc_event_count = 0;
|
||||
sc->sc_event_ptr = 0;
|
||||
}
|
||||
APM_UNLOCK(sc);
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
apmioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct lwp *l)
|
||||
{
|
||||
struct apm_softc *sc = apm_cd.cd_devs[APMUNIT(dev)];
|
||||
struct apm_power_info *powerp;
|
||||
struct apm_event_info *evp;
|
||||
#if 0
|
||||
struct apm_ctl *actl;
|
||||
#endif
|
||||
int i, error = 0;
|
||||
int batt_flags;
|
||||
struct apm_ctl *actl;
|
||||
|
||||
APM_LOCK(sc);
|
||||
switch (cmd) {
|
||||
case APM_IOC_STANDBY:
|
||||
if (!apm_do_standby) {
|
||||
error = EOPNOTSUPP;
|
||||
break;
|
||||
}
|
||||
|
||||
if ((flag & FWRITE) == 0) {
|
||||
error = EBADF;
|
||||
break;
|
||||
}
|
||||
apm_userstandbys++;
|
||||
break;
|
||||
|
||||
case APM_IOC_DEV_CTL:
|
||||
actl = (struct apm_ctl *)data;
|
||||
if ((flag & FWRITE) == 0) {
|
||||
error = EBADF;
|
||||
break;
|
||||
}
|
||||
#if 0
|
||||
apm_get_powstate(actl->dev); /* XXX */
|
||||
#endif
|
||||
error = (*sc->sc_ops->aa_set_powstate)(sc->sc_cookie, actl->dev,
|
||||
actl->mode);
|
||||
apm_suspends++;
|
||||
break;
|
||||
|
||||
case APM_IOC_SUSPEND:
|
||||
if ((flag & FWRITE) == 0) {
|
||||
error = EBADF;
|
||||
break;
|
||||
}
|
||||
apm_suspends++;
|
||||
break;
|
||||
|
||||
case APM_IOC_NEXTEVENT:
|
||||
if (!sc->sc_event_count)
|
||||
error = EAGAIN;
|
||||
else {
|
||||
evp = (struct apm_event_info *)data;
|
||||
i = sc->sc_event_ptr + APM_NEVENTS - sc->sc_event_count;
|
||||
i %= APM_NEVENTS;
|
||||
*evp = sc->sc_event_list[i];
|
||||
sc->sc_event_count--;
|
||||
}
|
||||
break;
|
||||
|
||||
case APM_IOC_GETPOWER:
|
||||
powerp = (struct apm_power_info *)data;
|
||||
if ((error = (*sc->sc_ops->aa_get_powstat)(sc->sc_cookie, 0,
|
||||
powerp)) != 0) {
|
||||
apm_perror("ioctl get power status", error);
|
||||
error = EIO;
|
||||
break;
|
||||
}
|
||||
switch (apm_minver) {
|
||||
case 0:
|
||||
break;
|
||||
case 1:
|
||||
default:
|
||||
batt_flags = powerp->battery_flags;
|
||||
powerp->battery_state = APM_BATT_UNKNOWN;
|
||||
if (batt_flags & APM_BATT_FLAG_HIGH)
|
||||
powerp->battery_state = APM_BATT_HIGH;
|
||||
else if (batt_flags & APM_BATT_FLAG_LOW)
|
||||
powerp->battery_state = APM_BATT_LOW;
|
||||
else if (batt_flags & APM_BATT_FLAG_CRITICAL)
|
||||
powerp->battery_state = APM_BATT_CRITICAL;
|
||||
else if (batt_flags & APM_BATT_FLAG_CHARGING)
|
||||
powerp->battery_state = APM_BATT_CHARGING;
|
||||
else if (batt_flags & APM_BATT_FLAG_NO_SYSTEM_BATTERY)
|
||||
powerp->battery_state = APM_BATT_ABSENT;
|
||||
break;
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
error = ENOTTY;
|
||||
}
|
||||
APM_UNLOCK(sc);
|
||||
|
||||
return (error);
|
||||
}
|
||||
|
||||
int
|
||||
apmpoll(dev_t dev, int events, struct lwp *l)
|
||||
{
|
||||
struct apm_softc *sc = apm_cd.cd_devs[APMUNIT(dev)];
|
||||
int revents = 0;
|
||||
|
||||
APM_LOCK(sc);
|
||||
if (events & (POLLIN | POLLRDNORM)) {
|
||||
if (sc->sc_event_count)
|
||||
revents |= events & (POLLIN | POLLRDNORM);
|
||||
else
|
||||
selrecord(l, &sc->sc_rsel);
|
||||
}
|
||||
APM_UNLOCK(sc);
|
||||
|
||||
return (revents);
|
||||
}
|
||||
|
||||
static void
|
||||
filt_apmrdetach(struct knote *kn)
|
||||
{
|
||||
struct apm_softc *sc = kn->kn_hook;
|
||||
|
||||
APM_LOCK(sc);
|
||||
SLIST_REMOVE(&sc->sc_rsel.sel_klist, kn, knote, kn_selnext);
|
||||
APM_UNLOCK(sc);
|
||||
}
|
||||
|
||||
static int
|
||||
filt_apmread(struct knote *kn, long hint)
|
||||
{
|
||||
struct apm_softc *sc = kn->kn_hook;
|
||||
|
||||
kn->kn_data = sc->sc_event_count;
|
||||
return (kn->kn_data > 0);
|
||||
}
|
||||
|
||||
static const struct filterops apmread_filtops =
|
||||
{ 1, NULL, filt_apmrdetach, filt_apmread };
|
||||
|
||||
int
|
||||
apmkqfilter(dev_t dev, struct knote *kn)
|
||||
{
|
||||
struct apm_softc *sc = apm_cd.cd_devs[APMUNIT(dev)];
|
||||
struct klist *klist;
|
||||
|
||||
switch (kn->kn_filter) {
|
||||
case EVFILT_READ:
|
||||
klist = &sc->sc_rsel.sel_klist;
|
||||
kn->kn_fop = &apmread_filtops;
|
||||
break;
|
||||
|
||||
default:
|
||||
return (1);
|
||||
}
|
||||
|
||||
kn->kn_hook = sc;
|
||||
|
||||
APM_LOCK(sc);
|
||||
SLIST_INSERT_HEAD(klist, kn, kn_selnext);
|
||||
APM_UNLOCK(sc);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: apmbios.h,v 1.3 2005/12/11 12:21:14 christos Exp $ */
|
||||
/* $NetBSD: apmbios.h,v 1.4 2006/07/08 20:22:19 christos Exp $ */
|
||||
/*-
|
||||
* Copyright (c) 1995 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
|
|
@ -34,8 +34,8 @@
|
|||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
#ifndef __DEV_APM_APMBIOS_H__
|
||||
#define __DEV_APM_APMBIOS_H__
|
||||
#ifndef _DEV_APM_APMBIOS_H_
|
||||
#define _DEV_APM_APMBIOS_H_
|
||||
|
||||
/* Advanced Power Management (v1.0 and v1.1 specification)
|
||||
* functions/defines/etc.
|
||||
|
|
@ -246,4 +246,12 @@
|
|||
#define APM_BIOS_PM_DISABLED (APM_DISABLED << 16)
|
||||
#define APM_BIOS_PM_DISENGAGED (APM_DISENGAGED << 16)
|
||||
|
||||
#endif /* __DEV_APM_APMBIOS_H__ */
|
||||
#define APMDEBUG_INFO 0x01
|
||||
#define APMDEBUG_APMCALLS 0x02
|
||||
#define APMDEBUG_EVENTS 0x04
|
||||
#define APMDEBUG_PROBE 0x10
|
||||
#define APMDEBUG_ATTACH 0x40
|
||||
#define APMDEBUG_DEVICE 0x20
|
||||
#define APMDEBUG_ANOM 0x40
|
||||
|
||||
#endif /* _DEV_APM_APMBIOS_H_ */
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: apmio.h,v 1.3 2005/12/11 12:21:14 christos Exp $ */
|
||||
/* $NetBSD: apmio.h,v 1.4 2006/07/08 20:22:19 christos Exp $ */
|
||||
/*-
|
||||
* Copyright (c) 1995 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
|
|
@ -34,8 +34,8 @@
|
|||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
#ifndef __DEV_APM_APMIO_H__
|
||||
#define __DEV_APM_APMIO_H__
|
||||
#ifndef _DEV_APM_APMIO_H_
|
||||
#define _DEV_APM_APMIO_H_
|
||||
|
||||
struct apm_event_info {
|
||||
u_int type;
|
||||
|
|
@ -47,11 +47,12 @@ struct apm_power_info {
|
|||
u_char battery_state;
|
||||
u_char ac_state;
|
||||
u_char battery_life;
|
||||
u_char spare1;
|
||||
u_char minutes_valid;
|
||||
u_int minutes_left; /* estimate */
|
||||
u_int nbattery;
|
||||
u_int batteryid;
|
||||
u_int spare2[4];
|
||||
u_int battery_flags;
|
||||
u_int spare2[3];
|
||||
};
|
||||
|
||||
struct apm_ctl {
|
||||
|
|
@ -67,4 +68,4 @@ struct apm_ctl {
|
|||
#define APM_IOC_NEXTEVENT _IOR('A', 4, struct apm_event_info) /* fetch event */
|
||||
#define APM_IOC_DEV_CTL _IOW('A', 5, struct apm_ctl) /* put device into mode */
|
||||
|
||||
#endif /* __DEV_APM_APMIO_H__ */
|
||||
#endif /* _DEV_APM_APMIO_H_ */
|
||||
|
|
|
|||
|
|
@ -0,0 +1,80 @@
|
|||
/* $NetBSD: apmvar.h,v 1.3 2006/07/08 20:22:19 christos Exp $ */
|
||||
/*-
|
||||
* Copyright (c) 2001, 2002 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by TAKEMURA Shin.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
#ifndef _DEV_APM_APMVAR_H_
|
||||
#define _DEV_APM_APMVAR_H_
|
||||
|
||||
#include <dev/apm/apmbios.h>
|
||||
#include <dev/apm/apmio.h>
|
||||
|
||||
struct apm_accessops {
|
||||
void (*aa_disconnect)(void *);
|
||||
void (*aa_enable)(void *, int);
|
||||
int (*aa_set_powstate)(void *, u_int, u_int);
|
||||
int (*aa_get_powstat)(void *, u_int, struct apm_power_info *);
|
||||
int (*aa_get_event)(void *, u_int *, u_int *);
|
||||
void (*aa_cpu_busy)(void *);
|
||||
void (*aa_cpu_idle)(void *);
|
||||
void (*aa_get_capabilities)(void *, u_int *, u_int *);
|
||||
};
|
||||
|
||||
#define APM_NEVENTS 16
|
||||
|
||||
struct apm_softc {
|
||||
struct device sc_dev;
|
||||
struct selinfo sc_rsel;
|
||||
struct selinfo sc_xsel;
|
||||
int sc_flags;
|
||||
int sc_event_count;
|
||||
int sc_event_ptr;
|
||||
int sc_power_state;
|
||||
struct proc *sc_thread;
|
||||
struct lock sc_lock;
|
||||
struct apm_event_info sc_event_list[APM_NEVENTS];
|
||||
struct apm_accessops *sc_ops;
|
||||
int sc_hwflags;
|
||||
int sc_vers;
|
||||
int sc_detail;
|
||||
void *sc_cookie;
|
||||
};
|
||||
|
||||
#define APM_F_DONT_RUN_HOOKS 0x01
|
||||
|
||||
int apm_match(void);
|
||||
void apm_attach(struct apm_softc *);
|
||||
const char *apm_strerror(int);
|
||||
|
||||
#endif /* _DEV_APM_APMVAR_H_ */
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
# $NetBSD: files.apm,v 1.3 2006/07/08 20:22:19 christos Exp $
|
||||
|
||||
#
|
||||
# Common APM support files
|
||||
#
|
||||
defflag opt_apm.h APM_DISABLE APM_FORCE_64K_SEGMENTS APM_NO_IDLE
|
||||
APM_NO_STANDBY APM_V10_ONLY APM_NO_V12 APMDEBUG
|
||||
APM_POWER_PRINT APM_ALLOW_BOGUS_SEGMENTS
|
||||
APM_USE_KVM86
|
||||
defparam opt_apm.h APMDEBUG_VALUE APM_DISABLE_INTERRUPTS
|
||||
device apm
|
||||
file dev/apm/apm.c apm
|
||||
Loading…
Reference in New Issue