Module Name: src
Committed By: phx
Date: Sat Jan 14 19:39:25 UTC 2012
Modified Files:
src/sys/arch/sandpoint/conf: GENERIC KUROBOX files.sandpoint
src/sys/arch/sandpoint/include: bus_funcs.h
src/sys/arch/sandpoint/sandpoint: machdep.c mainbus.c
Added Files:
src/sys/arch/sandpoint/sandpoint: nhpow.c
Log Message:
New device nhpow(4) to support the onboard GPIO pins on a NH230/231 board for
buttons, powerdown, reset, LEDs and fan control. It attaches gpio(4) for
its 8 pins on demand.
To generate a diff of this commit:
cvs rdiff -u -r1.65 -r1.66 src/sys/arch/sandpoint/conf/GENERIC
cvs rdiff -u -r1.3 -r1.4 src/sys/arch/sandpoint/conf/KUROBOX
cvs rdiff -u -r1.30 -r1.31 src/sys/arch/sandpoint/conf/files.sandpoint
cvs rdiff -u -r1.2 -r1.3 src/sys/arch/sandpoint/include/bus_funcs.h
cvs rdiff -u -r1.60 -r1.61 src/sys/arch/sandpoint/sandpoint/machdep.c
cvs rdiff -u -r1.26 -r1.27 src/sys/arch/sandpoint/sandpoint/mainbus.c
cvs rdiff -u -r0 -r1.1 src/sys/arch/sandpoint/sandpoint/nhpow.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/sandpoint/conf/GENERIC
diff -u src/sys/arch/sandpoint/conf/GENERIC:1.65 src/sys/arch/sandpoint/conf/GENERIC:1.66
--- src/sys/arch/sandpoint/conf/GENERIC:1.65 Sat Jan 7 20:51:23 2012
+++ src/sys/arch/sandpoint/conf/GENERIC Sat Jan 14 19:39:25 2012
@@ -1,4 +1,4 @@
-# $NetBSD: GENERIC,v 1.65 2012/01/07 20:51:23 phx Exp $
+# $NetBSD: GENERIC,v 1.66 2012/01/14 19:39:25 phx Exp $
#
# machine description file for GENERIC NAS
#
@@ -22,7 +22,7 @@ include "arch/sandpoint/conf/std.sandpo
options INCLUDE_CONFIG_FILE # embed config file in kernel binary
-#ident "GENERIC-$Revision: 1.65 $"
+#ident "GENERIC-$Revision: 1.66 $"
maxusers 32
@@ -179,6 +179,8 @@ cpu* at mainbus0
#nor* at cfi?
#flash* at nor?
+nhpow0 at mainbus0 # NH230/231 power,LED,buttons
+
pci* at mainbus0 bus ?
pchb* at pci? dev ? function ? # PCI host bridge
@@ -225,6 +227,9 @@ rgephy* at mii? phy ? # Realtek 8169S/
makphy* at mii? phy ? # Marvell Semiconductor 88E1000 PHYs
ukphy* at mii? phy ? # generic unknown PHYs
+# GPIO devices
+gpio* at gpiobus?
+
# USB Controller and Devices
ehci* at pci? dev ? function ? # Enhanced Host Controller
ohci* at pci? dev ? function ? # Open Host Controller
Index: src/sys/arch/sandpoint/conf/KUROBOX
diff -u src/sys/arch/sandpoint/conf/KUROBOX:1.3 src/sys/arch/sandpoint/conf/KUROBOX:1.4
--- src/sys/arch/sandpoint/conf/KUROBOX:1.3 Wed Jun 9 17:34:32 2010
+++ src/sys/arch/sandpoint/conf/KUROBOX Sat Jan 14 19:39:25 2012
@@ -1,4 +1,4 @@
-# $NetBSD: KUROBOX,v 1.3 2010/06/09 17:34:32 phx Exp $
+# $NetBSD: KUROBOX,v 1.4 2012/01/14 19:39:25 phx Exp $
#
# KuroBox/LinkStation support
#
@@ -10,3 +10,6 @@ no satmgr0
com0 at eumb? unit 1 # console at 0x4600
#com1 at eumb? unit 0
satmgr0 at eumb? unit 0 # satmgr at 0x4500
+
+no nhpow0
+no gpio*
Index: src/sys/arch/sandpoint/conf/files.sandpoint
diff -u src/sys/arch/sandpoint/conf/files.sandpoint:1.30 src/sys/arch/sandpoint/conf/files.sandpoint:1.31
--- src/sys/arch/sandpoint/conf/files.sandpoint:1.30 Sat Dec 17 20:20:37 2011
+++ src/sys/arch/sandpoint/conf/files.sandpoint Sat Jan 14 19:39:25 2012
@@ -1,4 +1,4 @@
-# $NetBSD: files.sandpoint,v 1.30 2011/12/17 20:20:37 phx Exp $
+# $NetBSD: files.sandpoint,v 1.31 2012/01/14 19:39:25 phx Exp $
#
# Motorola's "SandPoint" evaluation board and multiplied descendents.
#
@@ -31,12 +31,12 @@ include "dev/ata/files.ata"
#
# Memory Disk for install floppy
#
-file dev/md_root.c memory_disk_hooks
+file dev/md_root.c memory_disk_hooks
#
# System bus types
#
-define mainbus { }
+define mainbus { }
device mainbus: isabus, pcibus, mainbus
attach mainbus at root
@@ -48,15 +48,19 @@ device cfi: norbus
attach cfi at mainbus with sandpointcfi
file arch/sandpoint/sandpoint/flash_cfi.c sandpointcfi
-device eumb { [ unit = -1 ] }: mainbus
-attach eumb at mainbus
+device nhpow: sysmon_power, sysmon_taskq, gpiobus
+attach nhpow at mainbus
+file arch/sandpoint/sandpoint/nhpow.c nhpow
+
+device eumb { [ unit = -1 ] }: mainbus
+attach eumb at mainbus
file arch/sandpoint/sandpoint/eumb.c eumb
-attach com at eumb with com_eumb
+attach com at eumb with com_eumb
file arch/sandpoint/sandpoint/com_eumb.c com_eumb needs-flag
device ociic: motoi2c, i2cbus
-attach ociic at eumb with iic_eumb
+attach ociic at eumb with iic_eumb
file arch/sandpoint/sandpoint/iic_eumb.c iic_eumb
device satmgr: sysmon_power, sysmon_taskq
Index: src/sys/arch/sandpoint/include/bus_funcs.h
diff -u src/sys/arch/sandpoint/include/bus_funcs.h:1.2 src/sys/arch/sandpoint/include/bus_funcs.h:1.3
--- src/sys/arch/sandpoint/include/bus_funcs.h:1.2 Sat Dec 17 20:20:37 2011
+++ src/sys/arch/sandpoint/include/bus_funcs.h Sat Jan 14 19:39:25 2012
@@ -1,4 +1,4 @@
-/* $NetBSD: bus_funcs.h,v 1.2 2011/12/17 20:20:37 phx Exp $ */
+/* $NetBSD: bus_funcs.h,v 1.3 2012/01/14 19:39:25 phx Exp $ */
/* $OpenBSD: bus.h,v 1.1 1997/10/13 10:53:42 pefo Exp $ */
#ifndef _SANDPOINT_BUS_FUNCS_H_
@@ -11,6 +11,7 @@ extern struct powerpc_bus_space sandpoin
extern struct powerpc_bus_space genppc_isa_mem_space_tag;
extern struct powerpc_bus_space sandpoint_eumb_space_tag;
extern struct powerpc_bus_space sandpoint_flash_space_tag;
+extern struct powerpc_bus_space sandpoint_nhgpio_space_tag;
#endif
#include <powerpc/bus_funcs.h>
Index: src/sys/arch/sandpoint/sandpoint/machdep.c
diff -u src/sys/arch/sandpoint/sandpoint/machdep.c:1.60 src/sys/arch/sandpoint/sandpoint/machdep.c:1.61
--- src/sys/arch/sandpoint/sandpoint/machdep.c:1.60 Sat Dec 17 20:20:38 2011
+++ src/sys/arch/sandpoint/sandpoint/machdep.c Sat Jan 14 19:39:25 2012
@@ -1,4 +1,4 @@
-/* $NetBSD: machdep.c,v 1.60 2011/12/17 20:20:38 phx Exp $ */
+/* $NetBSD: machdep.c,v 1.61 2012/01/14 19:39:25 phx Exp $ */
/*
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
@@ -32,7 +32,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.60 2011/12/17 20:20:38 phx Exp $");
+__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.61 2012/01/14 19:39:25 phx Exp $");
#include "opt_compat_netbsd.h"
#include "opt_ddb.h"
@@ -122,12 +122,12 @@ extern struct consdev kcomcons;
void
initppc(u_int startkernel, u_int endkernel, u_int args, void *btinfo)
{
+ extern u_long ticks_per_sec, ns_per_tick;
struct btinfo_magic *bi_magic = btinfo;
struct btinfo_memory *meminfo;
struct btinfo_clock *clockinfo;
size_t memsize;
u_long ticks;
- extern u_long ticks_per_sec, ns_per_tick;
if ((unsigned)btinfo != 0 && (unsigned)btinfo < startkernel
&& bi_magic->magic == BOOTINFO_MAGIC)
@@ -173,6 +173,7 @@ initppc(u_int startkernel, u_int endkern
oea_batinit(
0x80000000, BAT_BL_256M, /* SANDPOINT_BUS_SPACE_MEM */
0xfc000000, BAT_BL_64M, /* _EUMB|_IO */
+ 0x70000000, BAT_BL_128K, /* only for NH230 board control */
0);
/* Install vectors and interrupt handler */
@@ -452,8 +453,12 @@ struct powerpc_bus_space sandpoint_flash
_BUS_SPACE_LITTLE_ENDIAN|_BUS_SPACE_MEM_TYPE,
0x00000000, 0xff000000, 0x00000000,
};
+struct powerpc_bus_space sandpoint_nhgpio_space_tag = {
+ _BUS_SPACE_BIG_ENDIAN|_BUS_SPACE_MEM_TYPE,
+ 0x70000000, 0x00000000, 0x00001000,
+};
-static char ex_storage[6][EXTENT_FIXED_STORAGE_SIZE(8)]
+static char ex_storage[7][EXTENT_FIXED_STORAGE_SIZE(8)]
__attribute__((aligned(8)));
void
@@ -496,6 +501,12 @@ sandpoint_bus_space_init(void)
ex_storage[5], sizeof(ex_storage[5]));
if (error)
panic("sandpoint_bus_space_init: can't init flash tag");
+
+ /* NH230/231 only: extended ROM space at 0x70000000 for GPIO */
+ error = bus_space_init(&sandpoint_nhgpio_space_tag, "nh23x-gpio",
+ ex_storage[6], sizeof(ex_storage[6]));
+ if (error)
+ panic("sandpoint_bus_space_init: can't init nhgpio tag");
}
#define MPC107_EUMBBAR 0x78 /* Eumb base address */
Index: src/sys/arch/sandpoint/sandpoint/mainbus.c
diff -u src/sys/arch/sandpoint/sandpoint/mainbus.c:1.26 src/sys/arch/sandpoint/sandpoint/mainbus.c:1.27
--- src/sys/arch/sandpoint/sandpoint/mainbus.c:1.26 Sun Dec 18 14:28:59 2011
+++ src/sys/arch/sandpoint/sandpoint/mainbus.c Sat Jan 14 19:39:25 2012
@@ -1,4 +1,4 @@
-/* $NetBSD: mainbus.c,v 1.26 2011/12/18 14:28:59 phx Exp $ */
+/* $NetBSD: mainbus.c,v 1.27 2012/01/14 19:39:25 phx Exp $ */
/*
* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
@@ -31,7 +31,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.26 2011/12/18 14:28:59 phx Exp $");
+__KERNEL_RCSID(0, "$NetBSD: mainbus.c,v 1.27 2012/01/14 19:39:25 phx Exp $");
#include "opt_pci.h"
#include "pci.h"
@@ -43,6 +43,7 @@ __KERNEL_RCSID(0, "$NetBSD: mainbus.c,v
#include <sys/systm.h>
#include <machine/autoconf.h>
+#include <machine/bootinfo.h>
#include <machine/isa_machdep.h>
#include <dev/pci/pcivar.h>
@@ -75,6 +76,7 @@ mainbus_attach(device_t parent, device_t
{
struct mainbus_attach_args mba;
struct pcibus_attach_args pba;
+ struct btinfo_prodfamily *pfam;
#if defined(PCI_NETBSD_CONFIGURE)
struct extent *ioext, *memext;
#endif
@@ -89,6 +91,14 @@ mainbus_attach(device_t parent, device_t
mba.ma_bst = &sandpoint_eumb_space_tag;
config_found_ia(self, "mainbus", &mba, mainbus_print);
+ pfam = lookup_bootinfo(BTINFO_PRODFAMILY);
+ if (pfam != NULL && strcmp(pfam->name, "nhnas") == 0) {
+ /* attach nhpow(4) for NH230/231 only */
+ mba.ma_name = "nhpow";
+ mba.ma_bst = &sandpoint_nhgpio_space_tag;
+ config_found_ia(self, "mainbus", &mba, mainbus_print);
+ }
+
mba.ma_name = "cfi";
mba.ma_bst = &sandpoint_flash_space_tag;
mba.ma_addr = 0xffe00000; /* smallest flash is 2 MiB */
Added files:
Index: src/sys/arch/sandpoint/sandpoint/nhpow.c
diff -u /dev/null src/sys/arch/sandpoint/sandpoint/nhpow.c:1.1
--- /dev/null Sat Jan 14 19:39:25 2012
+++ src/sys/arch/sandpoint/sandpoint/nhpow.c Sat Jan 14 19:39:25 2012
@@ -0,0 +1,324 @@
+/* $NetBSD: nhpow.c,v 1.1 2012/01/14 19:39:25 phx Exp $ */
+
+/*-
+ * Copyright (c) 2012 Frank Wille.
+ * All rights reserved.
+ *
+ * Written by Frank Wille for The NetBSD Project.
+ *
+ * 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 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.
+ */
+
+/*
+ * NH230/231 power and LED control, button handling
+ */
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: nhpow.c,v 1.1 2012/01/14 19:39:25 phx Exp $");
+#include "gpio.h"
+
+#include <sys/param.h>
+#include <sys/device.h>
+#if NGPIO > 0
+#include <sys/gpio.h>
+#endif
+#include <sys/callout.h>
+#include <sys/kernel.h>
+#include <sys/proc.h>
+#include <sys/reboot.h>
+#include <sys/sysctl.h>
+
+#if NGPIO > 0
+#include <dev/gpio/gpiovar.h>
+#endif
+#include <dev/sysmon/sysmonvar.h>
+#include <dev/sysmon/sysmon_taskq.h>
+
+#include <machine/autoconf.h>
+
+static int nhpow_match(device_t, cfdata_t, void *);
+static void nhpow_attach(device_t, device_t, void *);
+static void nhpow_reboot(int);
+static int nhpow_sysctl_fan(SYSCTLFN_PROTO);
+static int hwintr(void *);
+static void guarded_pbutton(void *);
+static void sched_sysmon_pbutton(void *);
+
+static void nhgpio_pin_write(void *, int, int);
+#if NGPIO > 0
+static int nhgpio_pin_read(void *, int);
+static void nhgpio_pin_ctl(void *, int, int);
+#endif
+
+#define NHGPIO_PINS 8
+
+/* write gpio */
+#define NHGPIO_WRITE(sc,x) bus_space_write_1(sc->sc_iot, sc->sc_ioh, 0, x)
+#define NHGPIO_POWEROFF 0x01
+#define NHGPIO_RESET 0x02
+#define NHGPIO_STATUS_LED_OFF 0x04
+#define NHGPIO_FAN_HIGH 0x08
+#define NHGPIO_USB1_LED_OFF 0x40
+#define NHGPIO_USB2_LED_OFF 0x80
+
+/* read gpio */
+#define NHGPIO_READ(sc) bus_space_read_1(sc->sc_iot, sc->sc_ioh, 0)
+#define NHGPIO_POWERBUTTON 0x01
+#define NHGPIO_RESETBUTTON 0x02
+#define NHGPIO_VERSIONMASK 0xf0
+#define NHGPIO_VERSIONSHIFT 4
+
+struct nhpow_softc {
+ device_t sc_dev;
+ bus_space_tag_t sc_iot;
+ bus_space_handle_t sc_ioh;
+ callout_t sc_ch_pbutton;
+ struct sysmon_pswitch sc_sm_pbutton;
+ int sc_sysctl_fan;
+#if NGPIO > 0
+ struct gpio_chipset_tag sc_gpio_gc;
+ gpio_pin_t sc_gpio_pins[8];
+#endif
+ uint8_t sc_gpio_wrstate;
+};
+
+CFATTACH_DECL_NEW(nhpow, sizeof(struct nhpow_softc),
+ nhpow_match, nhpow_attach, NULL, NULL);
+
+static int found = 0;
+
+extern struct cfdriver nhpow_cd;
+extern void (*md_reboot)(int);
+
+static int
+nhpow_match(device_t parent, cfdata_t cf, void *aux)
+{
+ struct mainbus_attach_args *ma = aux;
+
+ if (found != 0 || strcmp(ma->ma_name, nhpow_cd.cd_name) != 0)
+ return 0;
+
+ return 1;
+}
+
+static void
+nhpow_attach(device_t parent, device_t self, void *aux)
+{
+ struct mainbus_attach_args *ma = aux;
+#if NGPIO > 0
+ struct gpiobus_attach_args gba;
+#endif
+ const struct sysctlnode *rnode;
+ struct sysctllog *clog;
+ struct nhpow_softc *sc;
+ int i;
+
+ found = 1;
+ sc = device_private(self);
+ sc->sc_dev = self;
+
+ /* map the first byte for GPIO */
+ KASSERT(ma->ma_bst != NULL);
+ sc->sc_iot = ma->ma_bst;
+ i = bus_space_map(sc->sc_iot, 0, 1, 0, &sc->sc_ioh);
+ if (i != 0) {
+ aprint_error(": could not map error %d\n", i);
+ return;
+ }
+
+ aprint_naive(": Power Button Manager\n");
+ aprint_normal(": NH230/231 gpio board control, version %u\n",
+ (NHGPIO_READ(sc) & NHGPIO_VERSIONMASK) >> NHGPIO_VERSIONSHIFT);
+
+ md_reboot = nhpow_reboot; /* cpu_reboot() hook */
+ callout_init(&sc->sc_ch_pbutton, 0); /* power-button callout */
+
+ /* establish button interrupt handler */
+ intr_establish(I8259_ICU + 4, IST_EDGE_RISING, IPL_SCHED, hwintr, sc);
+ aprint_normal_dev(self, "interrupting at irq %d\n", I8259_ICU + 4);
+
+ /* register power button with sysmon */
+ sysmon_task_queue_init();
+ memset(&sc->sc_sm_pbutton, 0, sizeof(struct sysmon_pswitch));
+ sc->sc_sm_pbutton.smpsw_name = device_xname(sc->sc_dev);
+ sc->sc_sm_pbutton.smpsw_type = PSWITCH_TYPE_POWER;
+ if (sysmon_pswitch_register(&sc->sc_sm_pbutton) != 0)
+ aprint_error_dev(sc->sc_dev,
+ "unable to register power button with sysmon\n");
+
+ /* create machdep.nhpow subtree for fan control */
+ clog = NULL;
+ sysctl_createv(&clog, 0, NULL, &rnode,
+ CTLFLAG_PERMANENT,
+ CTLTYPE_NODE, "machdep", NULL,
+ NULL, 0, NULL, 0,
+ CTL_MACHDEP, CTL_EOL);
+ sysctl_createv(&clog, 0, &rnode, &rnode,
+ CTLFLAG_PERMANENT,
+ CTLTYPE_NODE, "nhpow", NULL,
+ NULL, 0, NULL, 0,
+ CTL_CREATE, CTL_EOL);
+ sysctl_createv(&clog, 0, &rnode, NULL,
+ CTLFLAG_PERMANENT|CTLFLAG_READWRITE,
+ CTLTYPE_INT, "fan",
+ SYSCTL_DESCR("Toggle high(1)/low(0) fan speed"),
+ nhpow_sysctl_fan, 0, NULL, 0,
+ CTL_CREATE, CTL_EOL);
+
+ /* define initial output state */
+ sc->sc_sysctl_fan = 0;
+ sc->sc_gpio_wrstate = NHGPIO_USB1_LED_OFF | NHGPIO_USB2_LED_OFF;
+ NHGPIO_WRITE(sc, sc->sc_gpio_wrstate);
+
+#if NGPIO > 0
+ /* initialize gpio pin array */
+ for (i = 0; i < NHGPIO_PINS; i++) {
+ sc->sc_gpio_pins[i].pin_num = i;
+ sc->sc_gpio_pins[i].pin_caps = GPIO_PIN_INOUT;
+ sc->sc_gpio_pins[i].pin_flags = GPIO_PIN_INOUT;
+ sc->sc_gpio_pins[i].pin_state =
+ (sc->sc_gpio_wrstate & (1 << i)) ?
+ GPIO_PIN_HIGH : GPIO_PIN_LOW;
+ }
+
+ /* create controller tag and attach GPIO framework */
+ sc->sc_gpio_gc.gp_cookie = sc;
+ sc->sc_gpio_gc.gp_pin_read = nhgpio_pin_read;
+ sc->sc_gpio_gc.gp_pin_write = nhgpio_pin_write;
+ sc->sc_gpio_gc.gp_pin_ctl = nhgpio_pin_ctl;
+ gba.gba_gc = &sc->sc_gpio_gc;
+ gba.gba_pins = sc->sc_gpio_pins;
+ gba.gba_npins = NHGPIO_PINS;
+ config_found(self, &gba, gpiobus_print);
+#endif
+}
+
+static void
+nhgpio_pin_write(void *arg, int pin, int value)
+{
+ struct nhpow_softc *sc = arg;
+ int p;
+
+ KASSERT(sc != NULL);
+ p = pin % NHGPIO_PINS;
+ if (value)
+ sc->sc_gpio_wrstate |= (1 << p);
+ else
+ sc->sc_gpio_wrstate &= ~(1 << p);
+ NHGPIO_WRITE(sc, sc->sc_gpio_wrstate);
+}
+
+#if NGPIO > 0
+static int
+nhgpio_pin_read(void *arg, int pin)
+{
+ struct nhpow_softc *sc = arg;
+ int p;
+
+ KASSERT(sc != NULL);
+ p = pin % NHGPIO_PINS;
+ return (NHGPIO_READ(sc) >> p) & 1;
+}
+
+static void
+nhgpio_pin_ctl(void *arg, int pin, int flags)
+{
+
+ /* nothing to control */
+}
+#endif
+
+static void
+nhpow_reboot(int howto)
+{
+ struct nhpow_softc *sc = device_lookup_private(&nhpow_cd, 0);
+
+ if ((howto & RB_POWERDOWN) == RB_AUTOBOOT)
+ NHGPIO_WRITE(sc, NHGPIO_STATUS_LED_OFF | NHGPIO_RESET);
+ else
+ NHGPIO_WRITE(sc, NHGPIO_STATUS_LED_OFF | NHGPIO_POWEROFF);
+
+ tsleep(nhpow_reboot, PWAIT, "reboot", 0);
+ /*NOTREACHED*/
+}
+
+static int
+nhpow_sysctl_fan(SYSCTLFN_ARGS)
+{
+ struct sysctlnode node;
+ struct nhpow_softc *sc;
+ int error, t;
+
+ sc = device_lookup_private(&nhpow_cd, 0);
+ node = *rnode;
+ t = sc->sc_sysctl_fan;
+ node.sysctl_data = &t;
+ error = sysctl_lookup(SYSCTLFN_CALL(&node));
+ if (error || newp == NULL)
+ return error;
+ if (t < 0 || t > 1)
+ return EINVAL;
+
+ if (sc->sc_sysctl_fan != t) {
+ sc->sc_sysctl_fan = t;
+ nhgpio_pin_write(sc, 3, t); /* set new fan speed */
+ }
+ return 0;
+}
+
+static int
+hwintr(void *arg)
+{
+ struct nhpow_softc *sc = arg;
+ uint8_t buttons;
+
+ callout_stop(&sc->sc_ch_pbutton);
+
+ buttons = NHGPIO_READ(sc);
+ if (!(buttons & NHGPIO_POWERBUTTON)) {
+ /* power button, schedule 3 seconds poweroff guard time */
+ callout_reset(&sc->sc_ch_pbutton, 3 * hz, guarded_pbutton, sc);
+ }
+ if (!(buttons & NHGPIO_RESETBUTTON)) {
+ /* reset/setup button */
+ }
+
+ return 1;
+}
+
+static void
+guarded_pbutton(void *arg)
+{
+ struct nhpow_softc *sc = arg;
+
+ /* we're now in callout(9) context */
+ if (!(NHGPIO_READ(sc) & NHGPIO_POWERBUTTON))
+ sysmon_task_queue_sched(0, sched_sysmon_pbutton, sc);
+}
+
+static void
+sched_sysmon_pbutton(void *arg)
+{
+ struct nhpow_softc *sc = arg;
+
+ /* we're now in kthread(9) context */
+ sysmon_pswitch_event(&sc->sc_sm_pbutton, PSWITCH_EVENT_PRESSED);
+}
