1 files changed, 346 insertions, 0 deletions
diff --git a/sys/arch/loongson/dev/apm.c b/sys/arch/loongson/dev/apm.c
new file mode 100644
index 00000000000..13afdf8a094
--- /dev/null
+++ b/sys/arch/loongson/dev/apm.c
@@ -0,0 +1,346 @@
+/*	$OpenBSD: apm.c,v 1.1 2010/02/28 08:30:27 otto 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. Neither the names of the authors nor the names of contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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 AUTHORS 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"
+
+#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/autoconf.h>
+#include <machine/conf.h>
+#include <machine/cpu.h>
+#include <machine/apmvar.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);
+int apm_getdefaultinfo(struct apm_power_info *);
+
+struct filterops apmread_filtops =
+	{ 1, NULL, filt_apmrdetach, filt_apmread};
+
+int (*get_apminfo)(struct apm_power_info *) = apm_getdefaultinfo;
+
+/*
+ * 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 mainbus_attach_args *maa = aux;
+
+	if (strcmp(maa->maa_name, apm_cd.cd_name) == 0)
+		return (1);
+	return (0);
+}
+
+void
+apmattach(struct device *parent, struct device *self, void *aux)
+{
+	printf("\n");
+}
+
+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 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;
+		else
+			error = EOPNOTSUPP; /* XXX */
+		break;
+	case APM_IOC_SUSPEND:
+		if ((flag & FWRITE) == 0)
+			error = EBADF;
+		else
+			error = EOPNOTSUPP; /* XXX */
+		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;
+		else
+			error = EOPNOTSUPP; /* XXX */
+		break;
+	case APM_IOC_GETPOWER:
+	        power = (struct apm_power_info *)data;
+		error = (*get_apminfo)(power);
+		break;
+	case APM_IOC_STANDBY_REQ:
+		if ((flag & FWRITE) == 0)
+			error = EBADF;
+		else
+			error = EOPNOTSUPP; /* XXX */
+		break;
+	case APM_IOC_SUSPEND_REQ:
+		if ((flag & FWRITE) == 0)
+			error = EBADF;
+		else
+			error = EOPNOTSUPP; /* XXX */
+		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);
+}
+
+int
+apm_getdefaultinfo(struct apm_power_info *info)
+{
+	info->battery_state = APM_BATTERY_ABSENT;
+	info->ac_state = APM_AC_ON;
+	info->battery_life = 0;
+	info->minutes_left = 0;
+	return (0);
+}
+
+void
+apm_setinfohook(int (*hook)(struct apm_power_info *))
+{
+	get_apminfo = hook;
+}
+
+int
+apm_record_event(u_int event, const char *src, const char *msg)
+{
+	static int apm_evindex;
+	struct apm_softc *sc;
+
+	/* apm0 only */
+	if (apm_cd.cd_ndevs == 0 || (sc = apm_cd.cd_devs[0]) == NULL)
+		return ENXIO;
+
+	if ((sc->sc_flags & SCFLAG_NOPRINT) == 0)
+		printf("%s: %s %s\n", sc->sc_dev.dv_xname, src, msg);
+
+	/* skip if no user waiting */
+	if ((sc->sc_flags & SCFLAG_OPEN) == 0)
+		return (1);   
+
+	apm_evindex++;
+	KNOTE(&sc->sc_note, APM_EVENT_COMPOSE(event, apm_evindex));
+
+	return (0);
+}