Add a new helper function for finding resources in resource buffers.

Move the ACPI generic battery code into a new file.

3 files changed, 275 insertions, 198 deletions

diff --git a/sys/dev/acpica/acpi.c b/sys/dev/acpica/acpi.c
index 867494e..0744d22 100644
--- a/sys/dev/acpica/acpi.c
+++ b/sys/dev/acpica/acpi.c
@@ -747,6 +747,7 @@ acpi_DeviceIsPresent(device_t dev)
 	return(FALSE);
     if ((error = AcpiGetObjectInfo(h, &devinfo)) != AE_OK)
 	return(FALSE);
+    /* XXX 0xf is probably not appropriate */
     if ((devinfo.Valid & ACPI_VALID_HID) && (devinfo.CurrentStatus & 0xf))
 	return(TRUE);
     return(FALSE);
@@ -911,6 +912,28 @@ acpi_ForeachPackageObject(ACPI_OBJECT *pkg, void (* func)(ACPI_OBJECT *comp, voi
     return(AE_OK);
 }
 
+/*
+ * Find the (index)th resource object in a set.
+ */
+ACPI_STATUS
+acpi_FindIndexedResource(ACPI_RESOURCE *resbuf, int index, ACPI_RESOURCE **resp)
+{
+    u_int8_t		*p;
+    int			i;
+
+    p = (u_int8_t *)resbuf;
+    i = index;
+    while (i > 0) {
+	/* range check */
+	if (p > ((u_int8_t *)resbuf + resbuf->Length))
+	    return(AE_BAD_PARAMETER);
+	p += ((ACPI_RESOURCE *)p)->Length;
+	i--;
+    }
+    if (resp != NULL)
+	*resp = (ACPI_RESOURCE *)p;
+    return(AE_OK);
+}
 
 static ACPI_STATUS __inline
 acpi_wakeup(UINT8 state)
@@ -1591,201 +1614,3 @@ acpi_set_debugging(void *junk)
 }
 SYSINIT(acpi_debugging, SI_SUB_TUNABLES, SI_ORDER_ANY, acpi_set_debugging, NULL);
 #endif
-
-/*
- * ACPI Battery Abstruction Layer
- */
-
-struct acpi_batteries {
-	TAILQ_ENTRY(acpi_batteries) link;
-	struct	 acpi_battdesc battdesc;
-};
-
-static TAILQ_HEAD(,acpi_batteries) acpi_batteries;
-static int			acpi_batteries_initted = 0;
-static int			acpi_batteries_units = 0;
-static struct acpi_battinfo	acpi_battery_battinfo;
-
-static int
-acpi_battery_get_units(void)
-{
-
-	return (acpi_batteries_units);
-}
-
-static int
-acpi_battery_get_battdesc(int logical_unit, struct acpi_battdesc *battdesc)
-{
-	int	 i;
-	struct acpi_batteries	*bp;
-
-	if (logical_unit < 0 || logical_unit >= acpi_batteries_units) {
-		return (ENXIO);
-	}
-
-	i = 0;
-	TAILQ_FOREACH(bp, &acpi_batteries, link) {
-		if (logical_unit == i) {
-			battdesc->type = bp->battdesc.type;
-			battdesc->phys_unit = bp->battdesc.phys_unit;
-			return (0);
-		}
-		i++;
-	}
-
-	return (ENXIO);
-}
-
-static int
-acpi_battery_get_battinfo(int unit, struct acpi_battinfo *battinfo)
-{
-	int	 error;
-	struct	 acpi_battdesc battdesc;
-
-	error = 0;
-	if (unit == -1) {
-		error = acpi_cmbat_get_battinfo(-1, battinfo);
-		goto out;
-	} else {
-		if ((error = acpi_battery_get_battdesc(unit, &battdesc)) != 0) {
-			goto out;
-		}
-		switch (battdesc.type) {
-		case ACPI_BATT_TYPE_CMBAT:
-			error = acpi_cmbat_get_battinfo(battdesc.phys_unit,
-			   battinfo);
-			break;
-		default:
-			error = ENXIO;
-			break;
-		}
-	}
-out:
-	return (error);
-}
-
-static int
-acpi_battery_ioctl(u_long cmd, caddr_t addr, void *arg)
-{
-	int	 error;
-	int	 logical_unit;
-	union acpi_battery_ioctl_arg	*ioctl_arg;
-
-	ioctl_arg = (union acpi_battery_ioctl_arg *)addr;
-	error = 0;
-	switch (cmd) {
-	case ACPIIO_BATT_GET_UNITS:
-		*(int *)addr = acpi_battery_get_units();
-		break;
-
-	case ACPIIO_BATT_GET_BATTDESC:
-		logical_unit = ioctl_arg->unit;
-		error = acpi_battery_get_battdesc(logical_unit, &ioctl_arg->battdesc);
-		break;
-
-	case ACPIIO_BATT_GET_BATTINFO:
-		logical_unit = ioctl_arg->unit;
-		error = acpi_battery_get_battinfo(logical_unit,
-		    &ioctl_arg->battinfo);
-		break;
-
-	default:
-		error = EINVAL;
-		break;
-	}
-
-	return (error);
-}
-
-static int
-acpi_battery_sysctl(SYSCTL_HANDLER_ARGS)
-{
-	int	val;
-	int	error;
-
-	acpi_battery_get_battinfo(-1, &acpi_battery_battinfo);
-	val = *(u_int *)oidp->oid_arg1;
-	error = sysctl_handle_int(oidp, &val, 0, req);
-	return (error);
-}
-
-static int
-acpi_battery_init(void)
-{
-	device_t		 dev;
-	struct acpi_softc	*sc;
-	int	 		 error;
-
-	if ((dev = devclass_get_device(acpi_devclass, 0)) == NULL) {
-		return (ENXIO);
-	}
-	if ((sc = device_get_softc(dev)) == NULL) {
-		return (ENXIO);
-	}
-
-	error = 0;
-
-	TAILQ_INIT(&acpi_batteries);
-	acpi_batteries_initted = 1;
-
-	if ((error = acpi_register_ioctl(ACPIIO_BATT_GET_UNITS,
-			acpi_battery_ioctl, NULL)) != 0) {
-		return (error);
-	}
-	if ((error = acpi_register_ioctl(ACPIIO_BATT_GET_BATTDESC,
-			acpi_battery_ioctl, NULL)) != 0) {
-		return (error);
-	}
-	if ((error = acpi_register_ioctl(ACPIIO_BATT_GET_BATTINFO,
-			acpi_battery_ioctl, NULL)) != 0) {
-		return (error);
-	}
-
-	sysctl_ctx_init(&sc->acpi_battery_sysctl_ctx);
-	sc->acpi_battery_sysctl_tree = SYSCTL_ADD_NODE(&sc->acpi_battery_sysctl_ctx,
-				SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
-				OID_AUTO, "battery", CTLFLAG_RD, 0, "");
-	SYSCTL_ADD_PROC(&sc->acpi_battery_sysctl_ctx,
-		SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree),
-		OID_AUTO, "life", CTLTYPE_INT | CTLFLAG_RD,
-		&acpi_battery_battinfo.cap, 0, acpi_battery_sysctl, "I", "");
-	SYSCTL_ADD_PROC(&sc->acpi_battery_sysctl_ctx,
-		SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree),
-		OID_AUTO, "time", CTLTYPE_INT | CTLFLAG_RD,
-		&acpi_battery_battinfo.min, 0, acpi_battery_sysctl, "I", "");
-	SYSCTL_ADD_PROC(&sc->acpi_battery_sysctl_ctx,
-		SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree),
-		OID_AUTO, "state", CTLTYPE_INT | CTLFLAG_RD,
-		&acpi_battery_battinfo.state, 0, acpi_battery_sysctl, "I", "");
-	SYSCTL_ADD_INT(&sc->acpi_battery_sysctl_ctx,
-		SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree),
-		OID_AUTO, "units", CTLFLAG_RD, &acpi_batteries_units, 0, "");
-
-	return (error);
-}
-
-int
-acpi_battery_register(int type, int phys_unit)
-{
-	int	error;
-	struct acpi_batteries	*bp;
-
-	error = 0;
-	if ((bp = malloc(sizeof(*bp), M_ACPIDEV, M_NOWAIT)) == NULL) {
-		return(ENOMEM);
-	}
-
-	bp->battdesc.type = type;
-	bp->battdesc.phys_unit = phys_unit;
-	if (acpi_batteries_initted == 0) {
-		if ((error = acpi_battery_init()) != 0) {
-			free(bp, M_ACPIDEV);
-			return(error);
-		}
-	}
-		
-	TAILQ_INSERT_TAIL(&acpi_batteries, bp, link);
-	acpi_batteries_units++;
-
-	return(0);
-}
diff --git a/sys/dev/acpica/acpi_battery.c b/sys/dev/acpica/acpi_battery.c
new file mode 100644
index 0000000..d365850
--- /dev/null
+++ b/sys/dev/acpica/acpi_battery.c
@@ -0,0 +1,251 @@
+/*-
+ * Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@jp.freebsd.org>
+ * 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 AUTHOR 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 AUTHOR 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.
+ *
+ *	$FreeBSD$
+ */
+
+#include "opt_acpi.h"		/* XXX trim includes */
+#include <sys/param.h>
+#include <sys/kernel.h>
+#include <sys/proc.h>
+#include <sys/lock.h>
+#include <sys/malloc.h>
+#include <sys/mutex.h>
+#include <sys/bus.h>
+#include <sys/conf.h>
+#include <sys/ioccom.h>
+#include <sys/reboot.h>
+#include <sys/sysctl.h>
+#include <sys/ctype.h>
+
+#include <machine/clock.h>
+
+#include <machine/resource.h>
+
+#include "acpi.h"
+
+#include <dev/acpica/acpivar.h>
+#include <dev/acpica/acpiio.h>
+
+/* XXX should use our own malloc class */
+MALLOC_DECLARE(M_ACPIDEV);
+
+/*
+ * ACPI Battery Abstruction Layer.
+ */
+
+struct acpi_batteries {
+	TAILQ_ENTRY(acpi_batteries) link;
+	struct	 acpi_battdesc battdesc;
+};
+
+static TAILQ_HEAD(,acpi_batteries) acpi_batteries;
+static int			acpi_batteries_initted = 0;
+static int			acpi_batteries_units = 0;
+static struct acpi_battinfo	acpi_battery_battinfo;
+
+static int
+acpi_battery_get_units(void)
+{
+
+	return (acpi_batteries_units);
+}
+
+static int
+acpi_battery_get_battdesc(int logical_unit, struct acpi_battdesc *battdesc)
+{
+	int	 i;
+	struct acpi_batteries	*bp;
+
+	if (logical_unit < 0 || logical_unit >= acpi_batteries_units) {
+		return (ENXIO);
+	}
+
+	i = 0;
+	TAILQ_FOREACH(bp, &acpi_batteries, link) {
+		if (logical_unit == i) {
+			battdesc->type = bp->battdesc.type;
+			battdesc->phys_unit = bp->battdesc.phys_unit;
+			return (0);
+		}
+		i++;
+	}
+
+	return (ENXIO);
+}
+
+static int
+acpi_battery_get_battinfo(int unit, struct acpi_battinfo *battinfo)
+{
+	int	 error;
+	struct	 acpi_battdesc battdesc;
+
+	error = 0;
+	if (unit == -1) {
+		error = acpi_cmbat_get_battinfo(-1, battinfo);
+		goto out;
+	} else {
+		if ((error = acpi_battery_get_battdesc(unit, &battdesc)) != 0) {
+			goto out;
+		}
+		switch (battdesc.type) {
+		case ACPI_BATT_TYPE_CMBAT:
+			error = acpi_cmbat_get_battinfo(battdesc.phys_unit,
+			   battinfo);
+			break;
+		default:
+			error = ENXIO;
+			break;
+		}
+	}
+out:
+	return (error);
+}
+
+static int
+acpi_battery_ioctl(u_long cmd, caddr_t addr, void *arg)
+{
+	int	 error;
+	int	 logical_unit;
+	union acpi_battery_ioctl_arg	*ioctl_arg;
+
+	ioctl_arg = (union acpi_battery_ioctl_arg *)addr;
+	error = 0;
+	switch (cmd) {
+	case ACPIIO_BATT_GET_UNITS:
+		*(int *)addr = acpi_battery_get_units();
+		break;
+
+	case ACPIIO_BATT_GET_BATTDESC:
+		logical_unit = ioctl_arg->unit;
+		error = acpi_battery_get_battdesc(logical_unit, &ioctl_arg->battdesc);
+		break;
+
+	case ACPIIO_BATT_GET_BATTINFO:
+		logical_unit = ioctl_arg->unit;
+		error = acpi_battery_get_battinfo(logical_unit,
+		    &ioctl_arg->battinfo);
+		break;
+
+	default:
+		error = EINVAL;
+		break;
+	}
+
+	return (error);
+}
+
+static int
+acpi_battery_sysctl(SYSCTL_HANDLER_ARGS)
+{
+	int	val;
+	int	error;
+
+	acpi_battery_get_battinfo(-1, &acpi_battery_battinfo);
+	val = *(u_int *)oidp->oid_arg1;
+	error = sysctl_handle_int(oidp, &val, 0, req);
+	return (error);
+}
+
+static int
+acpi_battery_init(void)
+{
+	device_t		 dev;
+	struct acpi_softc	*sc;
+	int	 		 error;
+
+	if ((dev = devclass_get_device(acpi_devclass, 0)) == NULL) {
+		return (ENXIO);
+	}
+	if ((sc = device_get_softc(dev)) == NULL) {
+		return (ENXIO);
+	}
+
+	error = 0;
+
+	TAILQ_INIT(&acpi_batteries);
+	acpi_batteries_initted = 1;
+
+	if ((error = acpi_register_ioctl(ACPIIO_BATT_GET_UNITS,
+			acpi_battery_ioctl, NULL)) != 0) {
+		return (error);
+	}
+	if ((error = acpi_register_ioctl(ACPIIO_BATT_GET_BATTDESC,
+			acpi_battery_ioctl, NULL)) != 0) {
+		return (error);
+	}
+	if ((error = acpi_register_ioctl(ACPIIO_BATT_GET_BATTINFO,
+			acpi_battery_ioctl, NULL)) != 0) {
+		return (error);
+	}
+
+	sysctl_ctx_init(&sc->acpi_battery_sysctl_ctx);
+	sc->acpi_battery_sysctl_tree = SYSCTL_ADD_NODE(&sc->acpi_battery_sysctl_ctx,
+				SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
+				OID_AUTO, "battery", CTLFLAG_RD, 0, "");
+	SYSCTL_ADD_PROC(&sc->acpi_battery_sysctl_ctx,
+		SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree),
+		OID_AUTO, "life", CTLTYPE_INT | CTLFLAG_RD,
+		&acpi_battery_battinfo.cap, 0, acpi_battery_sysctl, "I", "");
+	SYSCTL_ADD_PROC(&sc->acpi_battery_sysctl_ctx,
+		SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree),
+		OID_AUTO, "time", CTLTYPE_INT | CTLFLAG_RD,
+		&acpi_battery_battinfo.min, 0, acpi_battery_sysctl, "I", "");
+	SYSCTL_ADD_PROC(&sc->acpi_battery_sysctl_ctx,
+		SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree),
+		OID_AUTO, "state", CTLTYPE_INT | CTLFLAG_RD,
+		&acpi_battery_battinfo.state, 0, acpi_battery_sysctl, "I", "");
+	SYSCTL_ADD_INT(&sc->acpi_battery_sysctl_ctx,
+		SYSCTL_CHILDREN(sc->acpi_battery_sysctl_tree),
+		OID_AUTO, "units", CTLFLAG_RD, &acpi_batteries_units, 0, "");
+
+	return (error);
+}
+
+int
+acpi_battery_register(int type, int phys_unit)
+{
+	int	error;
+	struct acpi_batteries	*bp;
+
+	error = 0;
+	if ((bp = malloc(sizeof(*bp), M_ACPIDEV, M_NOWAIT)) == NULL) {
+		return(ENOMEM);
+	}
+
+	bp->battdesc.type = type;
+	bp->battdesc.phys_unit = phys_unit;
+	if (acpi_batteries_initted == 0) {
+		if ((error = acpi_battery_init()) != 0) {
+			free(bp, M_ACPIDEV);
+			return(error);
+		}
+	}
+		
+	TAILQ_INSERT_TAIL(&acpi_batteries, bp, link);
+	acpi_batteries_units++;
+
+	return(0);
+}
diff --git a/sys/dev/acpica/acpivar.h b/sys/dev/acpica/acpivar.h
index cda0221..f529a4c 100644
--- a/sys/dev/acpica/acpivar.h
+++ b/sys/dev/acpica/acpivar.h
@@ -197,6 +197,7 @@ extern ACPI_STATUS	acpi_EvaluateInteger(ACPI_HANDLE handle, char *path, int *num
 extern ACPI_STATUS	acpi_ForeachPackageObject(ACPI_OBJECT *obj, 
 						  void (* func)(ACPI_OBJECT *comp, void *arg),
 						  void *arg);
+extern ACPI_STATUS	acpi_FindIndexedResource(ACPI_RESOURCE *resbuf, int index, ACPI_RESOURCE **resp);
 
 extern ACPI_STATUS	acpi_SetSleepState(struct acpi_softc *sc, int state);
 extern ACPI_STATUS	acpi_Enable(struct acpi_softc *sc);