File: [local] / sys / arch / macppc / dev / apm.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:07:25 2008 UTC (16 years, 5 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
|
/* $OpenBSD: apm.c,v 1.12 2006/01/18 23:21:17 miod Exp $ */
/*-
* Copyright (c) 2001 Alexander Guy. All rights reserved.
* Copyright (c) 1998-2001 Michael Shalayeff. All rights reserved.
* Copyright (c) 1995 John T. Kohl. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University 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 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 MIND, 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 "apm.h"
#if NAPM > 1
#error only one APM emulation device may be configured
#endif
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/device.h>
#include <sys/fcntl.h>
#include <sys/ioctl.h>
#include <sys/event.h>
#include <machine/conf.h>
#include <machine/cpu.h>
#include <machine/apmvar.h>
#include <dev/adb/adb.h>
#include <macppc/dev/adbvar.h>
#include <macppc/dev/pm_direct.h>
#if defined(APMDEBUG)
#define DPRINTF(x) printf x
#else
#define DPRINTF(x) /**/
#endif
struct apm_softc {
struct device sc_dev;
struct klist sc_note;
int sc_flags;
};
int apmmatch(struct device *, void *, void *);
void apmattach(struct device *, struct device *, void *);
struct cfattach apm_ca = {
sizeof(struct apm_softc), apmmatch, apmattach
};
struct cfdriver apm_cd = {
NULL, "apm", DV_DULL
};
#define APMUNIT(dev) (minor(dev)&0xf0)
#define APMDEV(dev) (minor(dev)&0x0f)
#define APMDEV_NORMAL 0
#define APMDEV_CTL 8
void filt_apmrdetach(struct knote *kn);
int filt_apmread(struct knote *kn, long hint);
int apmkqfilter(dev_t dev, struct knote *kn);
struct filterops apmread_filtops =
{ 1, NULL, filt_apmrdetach, filt_apmread};
/*
* Flags to control kernel display
* SCFLAG_NOPRINT: do not output APM power messages due to
* a power change event.
*
* SCFLAG_PCTPRINT: do not output APM power messages due to
* to a power change event unless the battery
* percentage changes.
*/
#define SCFLAG_NOPRINT 0x0008000
#define SCFLAG_PCTPRINT 0x0004000
#define SCFLAG_PRINT (SCFLAG_NOPRINT|SCFLAG_PCTPRINT)
#define SCFLAG_OREAD (1 << 0)
#define SCFLAG_OWRITE (1 << 1)
#define SCFLAG_OPEN (SCFLAG_OREAD|SCFLAG_OWRITE)
int
apmmatch(struct device *parent, void *match, void *aux)
{
struct adb_attach_args *aa = (void *)aux;
if (aa->origaddr != ADBADDR_APM ||
aa->handler_id != ADBADDR_APM ||
aa->adbaddr != ADBADDR_APM)
return 0;
if (adbHardware != ADB_HW_PMU)
return 0;
return 1;
}
void
apmattach(struct device *parent, struct device *self, void *aux)
{
struct pmu_battery_info info;
pm_battery_info(0, &info);
printf(": battery flags 0x%X, ", info.flags);
printf("%d%% charged\n", ((info.cur_charge * 100) / info.max_charge));
}
int
apmopen(dev_t dev, int flag, int mode, struct proc *p)
{
struct apm_softc *sc;
int error = 0;
/* apm0 only */
if (!apm_cd.cd_ndevs || APMUNIT(dev) != 0 ||
!(sc = apm_cd.cd_devs[APMUNIT(dev)]))
return ENXIO;
DPRINTF(("apmopen: dev %d pid %d flag %x mode %x\n",
APMDEV(dev), p->p_pid, flag, mode));
switch (APMDEV(dev)) {
case APMDEV_CTL:
if (!(flag & FWRITE)) {
error = EINVAL;
break;
}
if (sc->sc_flags & SCFLAG_OWRITE) {
error = EBUSY;
break;
}
sc->sc_flags |= SCFLAG_OWRITE;
break;
case APMDEV_NORMAL:
if (!(flag & FREAD) || (flag & FWRITE)) {
error = EINVAL;
break;
}
sc->sc_flags |= SCFLAG_OREAD;
break;
default:
error = ENXIO;
break;
}
return error;
}
int
apmclose(dev_t dev, int flag, int mode, struct proc *p)
{
struct apm_softc *sc;
/* apm0 only */
if (!apm_cd.cd_ndevs || APMUNIT(dev) != 0 ||
!(sc = apm_cd.cd_devs[APMUNIT(dev)]))
return ENXIO;
DPRINTF(("apmclose: pid %d flag %x mode %x\n", p->p_pid, flag, mode));
switch (APMDEV(dev)) {
case APMDEV_CTL:
sc->sc_flags &= ~SCFLAG_OWRITE;
break;
case APMDEV_NORMAL:
sc->sc_flags &= ~SCFLAG_OREAD;
break;
}
return 0;
}
int
apmioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p)
{
struct apm_softc *sc;
struct pmu_battery_info batt;
struct apm_power_info *power;
int error = 0;
/* apm0 only */
if (!apm_cd.cd_ndevs || APMUNIT(dev) != 0 ||
!(sc = apm_cd.cd_devs[APMUNIT(dev)]))
return ENXIO;
switch (cmd) {
/* some ioctl names from linux */
case APM_IOC_STANDBY:
if ((flag & FWRITE) == 0)
error = EBADF;
break;
case APM_IOC_SUSPEND:
if ((flag & FWRITE) == 0)
error = EBADF;
break;
case APM_IOC_PRN_CTL:
if ((flag & FWRITE) == 0)
error = EBADF;
else {
int flag = *(int *)data;
DPRINTF(( "APM_IOC_PRN_CTL: %d\n", flag ));
switch (flag) {
case APM_PRINT_ON: /* enable printing */
sc->sc_flags &= ~SCFLAG_PRINT;
break;
case APM_PRINT_OFF: /* disable printing */
sc->sc_flags &= ~SCFLAG_PRINT;
sc->sc_flags |= SCFLAG_NOPRINT;
break;
case APM_PRINT_PCT: /* disable some printing */
sc->sc_flags &= ~SCFLAG_PRINT;
sc->sc_flags |= SCFLAG_PCTPRINT;
break;
default:
error = EINVAL;
break;
}
}
break;
case APM_IOC_DEV_CTL:
if ((flag & FWRITE) == 0)
error = EBADF;
break;
case APM_IOC_GETPOWER:
power = (struct apm_power_info *)data;
pm_battery_info(0, &batt);
power->ac_state = ((batt.flags & PMU_PWR_AC_PRESENT) ?
APM_AC_ON : APM_AC_OFF);
power->battery_life =
((batt.cur_charge * 100) / batt.max_charge);
/*
* If the battery is charging, return the minutes left until
* charging is complete. apmd knows this.
*/
if (!(batt.flags & PMU_PWR_BATT_PRESENT)) {
power->battery_state = APM_BATT_UNKNOWN;
power->minutes_left = 0;
power->battery_life = 0;
} else if ((power->ac_state == APM_AC_ON) &&
(batt.draw > 0)) {
power->minutes_left =
(((batt.max_charge - batt.cur_charge) * 3600) /
batt.draw) / 60;
power->battery_state = APM_BATT_CHARGING;
} else {
power->minutes_left =
((batt.cur_charge * 3600) / (-batt.draw)) / 60;
/* XXX - Arbitrary */
if (power->battery_life > 60)
power->battery_state = APM_BATT_HIGH;
else if (power->battery_life < 10)
power->battery_state = APM_BATT_CRITICAL;
else
power->battery_state = APM_BATT_LOW;
}
break;
default:
error = ENOTTY;
}
return error;
}
void
filt_apmrdetach(struct knote *kn)
{
struct apm_softc *sc = (struct apm_softc *)kn->kn_hook;
SLIST_REMOVE(&sc->sc_note, kn, knote, kn_selnext);
}
int
filt_apmread(struct knote *kn, long hint)
{
/* XXX weird kqueue_scan() semantics */
if (hint && !kn->kn_data)
kn->kn_data = (int)hint;
return (1);
}
int
apmkqfilter(dev_t dev, struct knote *kn)
{
struct apm_softc *sc;
/* apm0 only */
if (!apm_cd.cd_ndevs || APMUNIT(dev) != 0 ||
!(sc = apm_cd.cd_devs[APMUNIT(dev)]))
return ENXIO;
switch (kn->kn_filter) {
case EVFILT_READ:
kn->kn_fop = &apmread_filtops;
break;
default:
return (1);
}
kn->kn_hook = (caddr_t)sc;
SLIST_INSERT_HEAD(&sc->sc_note, kn, kn_selnext);
return (0);
}