431 lines
12 KiB
C
431 lines
12 KiB
C
/* $NetBSD: acpi_apm.c,v 1.13 2008/03/07 21:45:08 cube Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2006 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Christos Zoulas and by Jared McNeill.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/*
|
|
* Autoconfiguration support for the Intel ACPI Component Architecture
|
|
* ACPI reference implementation.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: acpi_apm.c,v 1.13 2008/03/07 21:45:08 cube Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/device.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/select.h>
|
|
#include <sys/envsys.h>
|
|
#include <dev/sysmon/sysmonvar.h>
|
|
|
|
#include <dev/acpi/acpica.h>
|
|
#include <dev/apm/apmvar.h>
|
|
|
|
static void acpiapm_disconnect(void *);
|
|
static void acpiapm_enable(void *, int);
|
|
static int acpiapm_set_powstate(void *, u_int, u_int);
|
|
static int acpiapm_get_powstat(void *, u_int, struct apm_power_info *);
|
|
static int acpiapm_get_event(void *, u_int *, u_int *);
|
|
static void acpiapm_cpu_busy(void *);
|
|
static void acpiapm_cpu_idle(void *);
|
|
static void acpiapm_get_capabilities(void *, u_int *, u_int *);
|
|
|
|
struct apm_accessops acpiapm_accessops = {
|
|
acpiapm_disconnect,
|
|
acpiapm_enable,
|
|
acpiapm_set_powstate,
|
|
acpiapm_get_powstat,
|
|
acpiapm_get_event,
|
|
acpiapm_cpu_busy,
|
|
acpiapm_cpu_idle,
|
|
acpiapm_get_capabilities,
|
|
};
|
|
|
|
#ifdef ACPI_APM_DEBUG
|
|
#define DPRINTF(a) uprintf a
|
|
#else
|
|
#define DPRINTF(a)
|
|
#endif
|
|
|
|
#ifndef ACPI_APM_DEFAULT_STANDBY_STATE
|
|
#define ACPI_APM_DEFAULT_STANDBY_STATE (1)
|
|
#endif
|
|
#ifndef ACPI_APM_DEFAULT_SUSPEND_STATE
|
|
#define ACPI_APM_DEFAULT_SUSPEND_STATE (3)
|
|
#endif
|
|
#define ACPI_APM_DEFAULT_CAP \
|
|
((ACPI_APM_DEFAULT_STANDBY_STATE!=0 ? APM_GLOBAL_STANDBY : 0) | \
|
|
(ACPI_APM_DEFAULT_SUSPEND_STATE!=0 ? APM_GLOBAL_SUSPEND : 0))
|
|
#define ACPI_APM_STATE_MIN (0)
|
|
#define ACPI_APM_STATE_MAX (4)
|
|
|
|
/* It is assumed that there is only acpiapm instance. */
|
|
static int resumed = 0, capability_changed = 0;
|
|
static int standby_state = ACPI_APM_DEFAULT_STANDBY_STATE;
|
|
static int suspend_state = ACPI_APM_DEFAULT_SUSPEND_STATE;
|
|
static int capabilities = ACPI_APM_DEFAULT_CAP;
|
|
static int acpiapm_node = CTL_EOL, standby_node = CTL_EOL;
|
|
|
|
struct acpi_softc;
|
|
extern ACPI_STATUS acpi_enter_sleep_state(struct acpi_softc *, int);
|
|
static int acpiapm_match(device_t, cfdata_t , void *);
|
|
static void acpiapm_attach(device_t, device_t, void *);
|
|
static int sysctl_state(SYSCTLFN_PROTO);
|
|
|
|
CFATTACH_DECL_NEW(acpiapm, sizeof(struct apm_softc),
|
|
acpiapm_match, acpiapm_attach, NULL, NULL);
|
|
|
|
static int
|
|
/*ARGSUSED*/
|
|
acpiapm_match(device_t parent, cfdata_t match, void *aux)
|
|
{
|
|
return apm_match();
|
|
}
|
|
|
|
static void
|
|
/*ARGSUSED*/
|
|
acpiapm_attach(device_t parent, device_t self, void *aux)
|
|
{
|
|
struct apm_softc *sc = device_private(self);
|
|
|
|
sc->sc_dev = self;
|
|
sc->sc_ops = &acpiapm_accessops;
|
|
sc->sc_cookie = parent;
|
|
sc->sc_vers = 0x0102;
|
|
sc->sc_detail = 0;
|
|
sc->sc_hwflags = APM_F_DONT_RUN_HOOKS;
|
|
apm_attach(sc);
|
|
}
|
|
|
|
static int
|
|
get_state_value(int id)
|
|
{
|
|
const int states[] = {
|
|
ACPI_STATE_S0,
|
|
ACPI_STATE_S1,
|
|
ACPI_STATE_S2,
|
|
ACPI_STATE_S3,
|
|
ACPI_STATE_S4
|
|
};
|
|
|
|
if (id < ACPI_APM_STATE_MIN || id > ACPI_APM_STATE_MAX)
|
|
return ACPI_STATE_S0;
|
|
|
|
return states[id];
|
|
}
|
|
|
|
static int
|
|
sysctl_state(SYSCTLFN_ARGS)
|
|
{
|
|
int newstate, error, *ref, cap, oldcap;
|
|
struct sysctlnode node;
|
|
|
|
if (rnode->sysctl_num == standby_node) {
|
|
ref = &standby_state;
|
|
cap = APM_GLOBAL_STANDBY;
|
|
} else {
|
|
ref = &suspend_state;
|
|
cap = APM_GLOBAL_SUSPEND;
|
|
}
|
|
|
|
newstate = *ref;
|
|
node = *rnode;
|
|
node.sysctl_data = &newstate;
|
|
error = sysctl_lookup(SYSCTLFN_CALL(&node));
|
|
if (error || newp == NULL)
|
|
return error;
|
|
|
|
if (newstate < ACPI_APM_STATE_MIN || newstate > ACPI_APM_STATE_MAX)
|
|
return EINVAL;
|
|
|
|
*ref = newstate;
|
|
oldcap = capabilities;
|
|
capabilities = newstate != 0 ? oldcap | cap : oldcap & ~cap;
|
|
if ((capabilities ^ oldcap) != 0)
|
|
capability_changed = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
SYSCTL_SETUP(sysctl_acpiapm_setup, "sysctl machdep.acpiapm subtree setup")
|
|
{
|
|
const struct sysctlnode *node;
|
|
|
|
if (sysctl_createv(clog, 0, NULL, NULL,
|
|
CTLFLAG_PERMANENT,
|
|
CTLTYPE_NODE, "machdep", NULL,
|
|
NULL, 0, NULL, 0, CTL_MACHDEP, CTL_EOL))
|
|
return;
|
|
|
|
if (sysctl_createv(clog, 0, NULL, &node,
|
|
CTLFLAG_PERMANENT,
|
|
CTLTYPE_NODE, "acpiapm", NULL,
|
|
NULL, 0, NULL, 0,
|
|
CTL_MACHDEP, CTL_CREATE, CTL_EOL))
|
|
return;
|
|
acpiapm_node = node->sysctl_num;
|
|
|
|
if (sysctl_createv(clog, 0, NULL, &node,
|
|
CTLFLAG_READWRITE,
|
|
CTLTYPE_INT, "standby", NULL,
|
|
&sysctl_state, 0, NULL, 0,
|
|
CTL_MACHDEP, acpiapm_node, CTL_CREATE, CTL_EOL))
|
|
return;
|
|
standby_node = node->sysctl_num;
|
|
|
|
if (sysctl_createv(clog, 0, NULL, NULL,
|
|
CTLFLAG_READWRITE,
|
|
CTLTYPE_INT, "suspend", NULL,
|
|
&sysctl_state, 0, NULL, 0,
|
|
CTL_MACHDEP, acpiapm_node, CTL_CREATE, CTL_EOL))
|
|
return;
|
|
}
|
|
|
|
/*****************************************************************************
|
|
* Minimalistic ACPI /dev/apm emulation support, for ACPI suspend
|
|
*****************************************************************************/
|
|
|
|
static void
|
|
/*ARGSUSED*/
|
|
acpiapm_disconnect(void *opaque)
|
|
{
|
|
return;
|
|
}
|
|
|
|
static void
|
|
/*ARGSUSED*/
|
|
acpiapm_enable(void *opaque, int onoff)
|
|
{
|
|
return;
|
|
}
|
|
|
|
static int
|
|
acpiapm_set_powstate(void *opaque, u_int devid, u_int powstat)
|
|
{
|
|
struct acpi_softc *sc = device_private((device_t)opaque);
|
|
|
|
if (devid != APM_DEV_ALLDEVS)
|
|
return APM_ERR_UNRECOG_DEV;
|
|
|
|
switch (powstat) {
|
|
case APM_SYS_READY:
|
|
break;
|
|
case APM_SYS_STANDBY:
|
|
acpi_enter_sleep_state(sc, get_state_value(standby_state));
|
|
resumed = 1;
|
|
break;
|
|
case APM_SYS_SUSPEND:
|
|
acpi_enter_sleep_state(sc, get_state_value(suspend_state));
|
|
resumed = 1;
|
|
break;
|
|
case APM_SYS_OFF:
|
|
break;
|
|
case APM_LASTREQ_INPROG:
|
|
break;
|
|
case APM_LASTREQ_REJECTED:
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
/*ARGSUSED*/
|
|
acpiapm_get_powstat(void *opaque, u_int batteryid,
|
|
struct apm_power_info *pinfo)
|
|
{
|
|
#define APM_BATT_FLAG_WATERMARK_MASK (APM_BATT_FLAG_CRITICAL | \
|
|
APM_BATT_FLAG_LOW | \
|
|
APM_BATT_FLAG_HIGH)
|
|
int i, curcap, lowcap, warncap, cap, descap, lastcap, discharge;
|
|
int cap_valid, lastcap_valid, discharge_valid;
|
|
envsys_tre_data_t etds;
|
|
envsys_basic_info_t ebis;
|
|
|
|
/* Denote most variables as unitialized. */
|
|
curcap = lowcap = warncap = descap = -1;
|
|
|
|
/* Prepare to aggregate these two variables over all batteries. */
|
|
cap = lastcap = discharge = 0;
|
|
cap_valid = lastcap_valid = discharge_valid = 0;
|
|
|
|
(void)memset(pinfo, 0, sizeof(*pinfo));
|
|
pinfo->ac_state = APM_AC_UNKNOWN;
|
|
pinfo->minutes_valid = 0;
|
|
pinfo->minutes_left = 0;
|
|
pinfo->batteryid = 0;
|
|
pinfo->nbattery = 0; /* to be incremented as batteries are found */
|
|
pinfo->battery_flags = 0;
|
|
pinfo->battery_state = APM_BATT_UNKNOWN; /* ignored */
|
|
pinfo->battery_life = APM_BATT_LIFE_UNKNOWN;
|
|
|
|
sysmonopen_envsys(0, 0, 0, &lwp0);
|
|
|
|
for (i = 0;; i++) {
|
|
const char *desc;
|
|
int data;
|
|
int flags;
|
|
|
|
ebis.sensor = i;
|
|
if (sysmonioctl_envsys(0, ENVSYS_GTREINFO, (void *)&ebis, 0,
|
|
NULL) || (ebis.validflags & ENVSYS_FVALID) == 0)
|
|
break;
|
|
etds.sensor = i;
|
|
if (sysmonioctl_envsys(0, ENVSYS_GTREDATA, (void *)&etds, 0,
|
|
NULL))
|
|
continue;
|
|
desc = ebis.desc;
|
|
flags = etds.validflags;
|
|
data = etds.cur.data_s;
|
|
|
|
DPRINTF(("%d %s %d %d\n", i, desc, data, flags));
|
|
if ((flags & ENVSYS_FCURVALID) == 0)
|
|
continue;
|
|
if (strstr(desc, " connected")) {
|
|
pinfo->ac_state = data ? APM_AC_ON : APM_AC_OFF;
|
|
} else if (strstr(desc, " present") && data == 0)
|
|
pinfo->battery_flags |= APM_BATT_FLAG_NO_SYSTEM_BATTERY;
|
|
else if (strstr(desc, " charging") && data)
|
|
pinfo->battery_flags |= APM_BATT_FLAG_CHARGING;
|
|
else if (strstr(desc, " charging") && !data)
|
|
pinfo->battery_flags &= ~APM_BATT_FLAG_CHARGING;
|
|
else if (strstr(desc, " warn cap"))
|
|
warncap = data / 1000;
|
|
else if (strstr(desc, " low cap"))
|
|
lowcap = data / 1000;
|
|
else if (strstr(desc, " last full cap")) {
|
|
lastcap += data / 1000;
|
|
lastcap_valid = 1;
|
|
}
|
|
else if (strstr(desc, " design cap"))
|
|
descap = data / 1000;
|
|
else if (strstr(desc, " charge") &&
|
|
strstr(desc, " charge rate") == NULL &&
|
|
strstr(desc, " charge state") == NULL) {
|
|
cap += data / 1000;
|
|
cap_valid = 1;
|
|
pinfo->nbattery++;
|
|
}
|
|
else if (strstr(desc, " discharge rate")) {
|
|
discharge += data / 1000;
|
|
discharge_valid = 1;
|
|
}
|
|
}
|
|
sysmonclose_envsys(0, 0, 0, &lwp0);
|
|
|
|
if (cap_valid > 0) {
|
|
if (warncap != -1 && cap < warncap)
|
|
pinfo->battery_flags |= APM_BATT_FLAG_CRITICAL;
|
|
else if (lowcap != -1) {
|
|
if (cap < lowcap)
|
|
pinfo->battery_flags |= APM_BATT_FLAG_LOW;
|
|
else
|
|
pinfo->battery_flags |= APM_BATT_FLAG_HIGH;
|
|
}
|
|
if (lastcap_valid > 0 && lastcap != 0)
|
|
pinfo->battery_life = 100 * cap / lastcap;
|
|
else if (descap != -1 && descap != 0)
|
|
pinfo->battery_life = 100 * cap / descap;
|
|
}
|
|
|
|
if ((pinfo->battery_flags & APM_BATT_FLAG_CHARGING) == 0) {
|
|
/* discharging */
|
|
if (discharge != -1 && cap != -1 && discharge != 0)
|
|
pinfo->minutes_left = 60 * cap / discharge;
|
|
}
|
|
if ((pinfo->battery_flags & APM_BATT_FLAG_WATERMARK_MASK) == 0 &&
|
|
(pinfo->battery_flags & APM_BATT_FLAG_NO_SYSTEM_BATTERY) == 0) {
|
|
if (pinfo->ac_state == APM_AC_ON)
|
|
pinfo->battery_flags |= APM_BATT_FLAG_HIGH;
|
|
else
|
|
pinfo->battery_flags |= APM_BATT_FLAG_LOW;
|
|
}
|
|
|
|
DPRINTF(("%d %d %d %d %d %d\n", cap, warncap, lowcap, lastcap, descap,
|
|
discharge));
|
|
DPRINTF(("pinfo %d %d %d\n", pinfo->battery_flags,
|
|
pinfo->battery_life, pinfo->battery_life));
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
/*ARGSUSED*/
|
|
acpiapm_get_event(void *opaque, u_int *event_type, u_int *event_info)
|
|
{
|
|
if (capability_changed) {
|
|
capability_changed = 0;
|
|
*event_type = APM_CAP_CHANGE;
|
|
*event_info = 0;
|
|
return 0;
|
|
}
|
|
if (resumed) {
|
|
resumed = 0;
|
|
*event_type = APM_NORMAL_RESUME;
|
|
*event_info = 0;
|
|
return 0;
|
|
}
|
|
|
|
return APM_ERR_NOEVENTS;
|
|
}
|
|
|
|
static void
|
|
/*ARGSUSED*/
|
|
acpiapm_cpu_busy(void *opaque)
|
|
{
|
|
return;
|
|
}
|
|
|
|
static void
|
|
/*ARGSUSED*/
|
|
acpiapm_cpu_idle(void *opaque)
|
|
{
|
|
return;
|
|
}
|
|
|
|
static void
|
|
/*ARGSUSED*/
|
|
acpiapm_get_capabilities(void *opaque, u_int *numbatts,
|
|
u_int *capflags)
|
|
{
|
|
*numbatts = 1;
|
|
*capflags = capabilities;
|
|
return;
|
|
}
|