NetBSD/sys/dev/hpc/hpcapm.c

461 lines
12 KiB
C

/* $NetBSD: hpcapm.c,v 1.18 2009/05/12 14:22:39 cegger Exp $ */
/*
* Copyright (c) 2000 Takemura Shin
* Copyright (c) 2000-2001 SATO Kazumi
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: hpcapm.c,v 1.18 2009/05/12 14:22:39 cegger Exp $");
#ifdef _KERNEL_OPT
#include "opt_hpcapm.h"
#endif
#include <sys/param.h>
#include <sys/device.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <sys/selinfo.h> /* XXX: for apm_softc that is exposed here */
#include <dev/hpc/apm/apmvar.h>
#include <sys/bus.h>
#include <machine/config_hook.h>
#include <machine/platid.h>
#include <machine/platid_mask.h>
#ifdef HPCAPMDEBUG
#ifndef HPCAPMDEBUG_CONF
#define HPCAPMDEBUG_CONF 1
#endif
int hpcapm_debug = HPCAPMDEBUG_CONF;
#define DPRINTF(arg) do { if (hpcapm_debug) printf arg; } while(0);
#define DPRINTFN(n, arg) do { if (hpcapm_debug > (n)) printf arg; } while (0);
#else
#define DPRINTF(arg) do { } while (0);
#define DPRINTFN(n, arg) do { } while (0);
#endif
/* Definition of the driver for autoconfig. */
static int hpcapm_match(device_t, cfdata_t, void *);
static void hpcapm_attach(device_t, device_t, void *);
static int hpcapm_hook(void *, int, long, void *);
static void hpcapm_disconnect(void *);
static void hpcapm_enable(void *, int);
static int hpcapm_set_powstate(void *, u_int, u_int);
static int hpcapm_get_powstat(void *, u_int, struct apm_power_info *);
static int hpcapm_get_event(void *, u_int *, u_int *);
static void hpcapm_cpu_busy(void *);
static void hpcapm_cpu_idle(void *);
static void hpcapm_get_capabilities(void *, u_int *, u_int *);
struct apmhpc_softc {
struct device sc_dev;
void *sc_apmdev;
volatile unsigned int events;
volatile int power_state;
volatile int battery_flags;
volatile int ac_state;
config_hook_tag sc_standby_hook;
config_hook_tag sc_suspend_hook;
config_hook_tag sc_battery_hook;
config_hook_tag sc_ac_hook;
int battery_life;
int minutes_left;
};
CFATTACH_DECL(hpcapm, sizeof (struct apmhpc_softc),
hpcapm_match, hpcapm_attach, NULL, NULL);
struct apm_accessops hpcapm_accessops = {
hpcapm_disconnect,
hpcapm_enable,
hpcapm_set_powstate,
hpcapm_get_powstat,
hpcapm_get_event,
hpcapm_cpu_busy,
hpcapm_cpu_idle,
hpcapm_get_capabilities,
};
extern struct cfdriver hpcapm_cd;
static int
hpcapm_match(device_t parent,
cfdata_t cf, void *aux)
{
return 1;
}
static void
hpcapm_attach(device_t parent,
device_t self, void *aux)
{
struct apmhpc_softc *sc;
struct apmdev_attach_args aaa;
sc = device_private(self);
printf(": pseudo power management module\n");
sc->events = 0;
sc->power_state = APM_SYS_READY;
sc->battery_flags = APM_BATT_FLAG_UNKNOWN;
sc->ac_state = APM_AC_UNKNOWN;
sc->battery_life = APM_BATT_LIFE_UNKNOWN;
sc->minutes_left = 0;
sc->sc_standby_hook = config_hook(CONFIG_HOOK_PMEVENT,
CONFIG_HOOK_PMEVENT_STANDBYREQ,
CONFIG_HOOK_EXCLUSIVE,
hpcapm_hook, sc);
sc->sc_suspend_hook = config_hook(CONFIG_HOOK_PMEVENT,
CONFIG_HOOK_PMEVENT_SUSPENDREQ,
CONFIG_HOOK_EXCLUSIVE,
hpcapm_hook, sc);
sc->sc_battery_hook = config_hook(CONFIG_HOOK_PMEVENT,
CONFIG_HOOK_PMEVENT_BATTERY,
CONFIG_HOOK_SHARE,
hpcapm_hook, sc);
sc->sc_ac_hook = config_hook(CONFIG_HOOK_PMEVENT,
CONFIG_HOOK_PMEVENT_AC,
CONFIG_HOOK_SHARE,
hpcapm_hook, sc);
aaa.accessops = &hpcapm_accessops;
aaa.accesscookie = sc;
aaa.apm_detail = 0x0102;
sc->sc_apmdev = config_found_ia(self, "apmdevif", &aaa, apmprint);
if (!pmf_device_register(self, NULL, NULL))
aprint_error_dev(self, "unable to establish power handler\n");
}
static int
hpcapm_hook(void *ctx, int type, long id, void *msg)
{
struct apmhpc_softc *sc;
int s;
int charge;
int message;
sc = ctx;
if (type != CONFIG_HOOK_PMEVENT)
return 1;
if (CONFIG_HOOK_VALUEP(msg))
message = (int)msg;
else
message = *(int *)msg;
s = splhigh();
switch (id) {
case CONFIG_HOOK_PMEVENT_STANDBYREQ:
if (sc->power_state != APM_SYS_STANDBY) {
sc->events |= (1 << APM_USER_STANDBY_REQ);
} else {
sc->events |= (1 << APM_NORMAL_RESUME);
}
break;
case CONFIG_HOOK_PMEVENT_SUSPENDREQ:
if (sc->power_state != APM_SYS_SUSPEND) {
DPRINTF(("hpcapm: suspend request\n"));
sc->events |= (1 << APM_USER_SUSPEND_REQ);
} else {
sc->events |= (1 << APM_NORMAL_RESUME);
}
break;
case CONFIG_HOOK_PMEVENT_BATTERY:
switch (message) {
case CONFIG_HOOK_BATT_CRITICAL:
DPRINTF(("hpcapm: battery state critical\n"));
charge = sc->battery_flags & APM_BATT_FLAG_CHARGING;
sc->battery_flags = APM_BATT_FLAG_CRITICAL;
sc->battery_flags |= charge;
sc->battery_life = 0;
break;
case CONFIG_HOOK_BATT_LOW:
DPRINTF(("hpcapm: battery state low\n"));
charge = sc->battery_flags & APM_BATT_FLAG_CHARGING;
sc->battery_flags = APM_BATT_FLAG_LOW;
sc->battery_flags |= charge;
break;
case CONFIG_HOOK_BATT_HIGH:
DPRINTF(("hpcapm: battery state high\n"));
charge = sc->battery_flags & APM_BATT_FLAG_CHARGING;
sc->battery_flags = APM_BATT_FLAG_HIGH;
sc->battery_flags |= charge;
break;
case CONFIG_HOOK_BATT_10P:
DPRINTF(("hpcapm: battery life 10%%\n"));
sc->battery_life = 10;
break;
case CONFIG_HOOK_BATT_20P:
DPRINTF(("hpcapm: battery life 20%%\n"));
sc->battery_life = 20;
break;
case CONFIG_HOOK_BATT_30P:
DPRINTF(("hpcapm: battery life 30%%\n"));
sc->battery_life = 30;
break;
case CONFIG_HOOK_BATT_40P:
DPRINTF(("hpcapm: battery life 40%%\n"));
sc->battery_life = 40;
break;
case CONFIG_HOOK_BATT_50P:
DPRINTF(("hpcapm: battery life 50%%\n"));
sc->battery_life = 50;
break;
case CONFIG_HOOK_BATT_60P:
DPRINTF(("hpcapm: battery life 60%%\n"));
sc->battery_life = 60;
break;
case CONFIG_HOOK_BATT_70P:
DPRINTF(("hpcapm: battery life 70%%\n"));
sc->battery_life = 70;
break;
case CONFIG_HOOK_BATT_80P:
DPRINTF(("hpcapm: battery life 80%%\n"));
sc->battery_life = 80;
break;
case CONFIG_HOOK_BATT_90P:
DPRINTF(("hpcapm: battery life 90%%\n"));
sc->battery_life = 90;
break;
case CONFIG_HOOK_BATT_100P:
DPRINTF(("hpcapm: battery life 100%%\n"));
sc->battery_life = 100;
break;
case CONFIG_HOOK_BATT_UNKNOWN:
DPRINTF(("hpcapm: battery state unknown\n"));
sc->battery_flags = APM_BATT_FLAG_UNKNOWN;
sc->battery_life = APM_BATT_LIFE_UNKNOWN;
break;
case CONFIG_HOOK_BATT_NO_SYSTEM_BATTERY:
DPRINTF(("hpcapm: battery state no system battery?\n"));
sc->battery_flags = APM_BATT_FLAG_NO_SYSTEM_BATTERY;
sc->battery_life = APM_BATT_LIFE_UNKNOWN;
break;
}
break;
case CONFIG_HOOK_PMEVENT_AC:
switch (message) {
case CONFIG_HOOK_AC_OFF:
DPRINTF(("hpcapm: ac not connected\n"));
sc->battery_flags &= ~APM_BATT_FLAG_CHARGING;
sc->ac_state = APM_AC_OFF;
break;
case CONFIG_HOOK_AC_ON_CHARGE:
DPRINTF(("hpcapm: charging\n"));
sc->battery_flags |= APM_BATT_FLAG_CHARGING;
sc->ac_state = APM_AC_ON;
break;
case CONFIG_HOOK_AC_ON_NOCHARGE:
DPRINTF(("hpcapm: ac connected\n"));
sc->battery_flags &= ~APM_BATT_FLAG_CHARGING;
sc->ac_state = APM_AC_ON;
break;
case CONFIG_HOOK_AC_UNKNOWN:
sc->ac_state = APM_AC_UNKNOWN;
break;
}
break;
}
splx(s);
return (0);
}
static void
hpcapm_disconnect(void *scx)
{
struct apmhpc_softc *sc;
sc = scx;
}
static void
hpcapm_enable(void *scx, int onoff)
{
struct apmhpc_softc *sc;
sc = scx;
}
static int
hpcapm_set_powstate(void *scx, u_int devid, u_int powstat)
{
struct apmhpc_softc *sc;
int s;
sc = scx;
if (devid != APM_DEV_ALLDEVS)
return APM_ERR_UNRECOG_DEV;
switch (powstat) {
case APM_SYS_READY:
DPRINTF(("hpcapm: set power state READY\n"));
sc->power_state = APM_SYS_READY;
break;
case APM_SYS_STANDBY:
DPRINTF(("hpcapm: set power state STANDBY\n"));
s = splhigh();
config_hook_call(CONFIG_HOOK_PMEVENT,
CONFIG_HOOK_PMEVENT_HARDPOWER,
(void *)PWR_STANDBY);
sc->power_state = APM_SYS_STANDBY;
machine_standby();
config_hook_call_reverse(CONFIG_HOOK_PMEVENT,
CONFIG_HOOK_PMEVENT_HARDPOWER,
(void *)PWR_RESUME);
DPRINTF(("hpcapm: resume\n"));
splx(s);
break;
case APM_SYS_SUSPEND:
DPRINTF(("hpcapm: set power state SUSPEND...\n"));
s = splhigh();
config_hook_call(CONFIG_HOOK_PMEVENT,
CONFIG_HOOK_PMEVENT_HARDPOWER,
(void *)PWR_SUSPEND);
sc->power_state = APM_SYS_SUSPEND;
machine_sleep();
config_hook_call_reverse(CONFIG_HOOK_PMEVENT,
CONFIG_HOOK_PMEVENT_HARDPOWER,
(void *)PWR_RESUME);
DPRINTF(("hpcapm: resume\n"));
splx(s);
break;
case APM_SYS_OFF:
DPRINTF(("hpcapm: set power state OFF\n"));
sc->power_state = APM_SYS_OFF;
break;
case APM_LASTREQ_INPROG:
/*DPRINTF(("hpcapm: set power state INPROG\n"));
*/
break;
case APM_LASTREQ_REJECTED:
DPRINTF(("hpcapm: set power state REJECTED\n"));
break;
}
return (0);
}
static int
hpcapm_get_powstat(void *scx, u_int batteryid, struct apm_power_info *pinfo)
{
struct apmhpc_softc *sc;
int val;
sc = scx;
pinfo->nbattery = 0;
pinfo->batteryid = 0;
pinfo->minutes_valid = 0;
pinfo->minutes_left = 0;
pinfo->battery_state = APM_BATT_UNKNOWN; /* XXX: ignored */
if (config_hook_call(CONFIG_HOOK_GET,
CONFIG_HOOK_ACADAPTER, &val) != -1)
pinfo->ac_state = val;
else
pinfo->ac_state = sc->ac_state;
if (config_hook_call(CONFIG_HOOK_GET,
CONFIG_HOOK_CHARGE, &val) != -1)
pinfo->battery_flags = val;
else
pinfo->battery_flags = sc->battery_flags;
if (config_hook_call(CONFIG_HOOK_GET,
CONFIG_HOOK_BATTERYVAL, &val) != -1)
pinfo->battery_life = val;
else
pinfo->battery_life = sc->battery_life;
return (0);
}
static int
hpcapm_get_event(void *scx, u_int *event_type, u_int *event_info)
{
struct apmhpc_softc *sc;
int s, i;
sc = scx;
s = splhigh();
for (i = APM_STANDBY_REQ; i <= APM_CAP_CHANGE; i++) {
if (sc->events & (1 << i)) {
sc->events &= ~(1 << i);
*event_type = i;
if (*event_type == APM_NORMAL_RESUME ||
*event_type == APM_CRIT_RESUME) {
/* pccard power off in the suspend state */
*event_info = 1;
sc->power_state = APM_SYS_READY;
} else
*event_info = 0;
return (0);
}
}
splx(s);
return APM_ERR_NOEVENTS;
}
static void
hpcapm_cpu_busy(void *scx)
{
struct apmhpc_softc *sc;
sc = scx;
}
static void
hpcapm_cpu_idle(void *scx)
{
struct apmhpc_softc *sc;
sc = scx;
}
static void
hpcapm_get_capabilities(void *scx, u_int *numbatts, u_int *capflags)
{
struct apmhpc_softc *sc;
*numbatts = 0;
*capflags = APM_GLOBAL_STANDBY | APM_GLOBAL_SUSPEND;
sc = scx;
}