Port NetBSD auxio driver. The driver was modified to use led(4) and can

be used to announce various system activity.
The auxio device provides auxiliary I/O functions and is found on various
SBus/EBus UltraSPARC models. At present, only front panel LED is
controlled by this driver.

Approved by:    jake (mentor)
Reviewed by:    joerg
Tested by:      joerg

7 files changed, 424 insertions, 0 deletions

diff --git a/sys/conf/files.sparc64 b/sys/conf/files.sparc64
index 562d6d3..64572e3 100644
--- a/sys/conf/files.sparc64
+++ b/sys/conf/files.sparc64
@@ -12,6 +12,8 @@ crypto/blowfish/bf_enc.c	optional	ipsec ipsec_esp
 crypto/des/des_enc.c		optional	ipsec ipsec_esp
 crypto/blowfish/bf_enc.c	optional	crypto
 crypto/des/des_enc.c		optional	crypto
+dev/auxio/auxio.c		optional	auxio sbus
+dev/auxio/auxio.c		optional	auxio ebus
 dev/esp/esp_sbus.c		optional	esp sbus
 dev/esp/lsi64854.c		optional	esp sbus
 dev/fb/creator.c		optional	creator sc
diff --git a/sys/dev/auxio/auxio.c b/sys/dev/auxio/auxio.c
new file mode 100644
index 0000000..74d6880
--- /dev/null
+++ b/sys/dev/auxio/auxio.c
@@ -0,0 +1,335 @@
+/*-
+ * Copyright (c) 2004 Pyun YongHyeon
+ * 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.
+ *
+ */
+
+/*	$NetBSD: auxio.c,v 1.11 2003/07/15 03:36:04 lukem Exp $	*/
+
+/*
+ * Copyright (c) 2000, 2001 Matthew R. Green
+ * 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. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
+ */
+
+/*
+ * AUXIO registers support on the sbus & ebus2, used for the floppy driver
+ * and to control the system LED, for the BLINK option.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+#include <sys/kernel.h>
+#include <sys/lock.h>
+#include <sys/module.h>
+#include <sys/mutex.h>
+#include <sys/resource.h>
+#include <sys/rman.h>
+
+#include <dev/led/led.h>
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/openfirm.h>
+
+#include <machine/bus.h>
+#include <machine/ofw_machdep.h>
+#include <machine/resource.h>
+
+#include <sparc64/sbus/sbusvar.h>
+#include <dev/auxio/auxioreg.h>
+
+/*
+ * on sun4u, auxio exists with one register (LED) on the sbus, and 5
+ * registers on the ebus2 (pci) (LED, PCIMODE, FREQUENCY, SCSI
+ * OSCILLATOR, and TEMP SENSE.
+ */
+
+#define AUXIO_PCIO_LED	0
+#define AUXIO_PCIO_PCI	1
+#define AUXIO_PCIO_FREQ	2
+#define AUXIO_PCIO_OSC	3
+#define AUXIO_PCIO_TEMP	4
+#define AUXIO_PCIO_MAX	8
+
+struct auxio_softc {
+	struct device		*sc_dev;
+
+	int			sc_nauxio;
+	struct resource		*sc_res[AUXIO_PCIO_MAX];
+	int			sc_rid[AUXIO_PCIO_MAX];
+	bus_space_tag_t		sc_regt[AUXIO_PCIO_MAX];
+	bus_space_handle_t	sc_regh[AUXIO_PCIO_MAX];
+	struct cdev		*sc_led_dev;
+	u_int32_t		sc_led_stat;
+
+	int			sc_flags;
+#define	AUXIO_LEDONLY		0x1
+#define	AUXIO_EBUS		0x2
+#define	AUXIO_SBUS		0x4
+
+	struct mtx		sc_lock;
+};
+
+static void	auxio_led_func(void *arg, int onoff);
+static void	auxio_attach_common(struct auxio_softc *);
+static int	auxio_bus_probe(device_t);
+static int	auxio_sbus_attach(device_t);
+static int	auxio_ebus_attach(device_t);
+static int	auxio_bus_detach(device_t);
+static void	auxio_free_resource(struct auxio_softc *);
+static __inline u_int32_t auxio_led_read(struct auxio_softc *);
+static __inline void auxio_led_write(struct auxio_softc *, u_int32_t);
+
+/* SBus */
+static device_method_t auxio_sbus_methods[] = {
+	DEVMETHOD(device_probe,		auxio_bus_probe),
+	DEVMETHOD(device_attach,	auxio_sbus_attach),
+	DEVMETHOD(device_detach,	auxio_bus_detach),
+	{0, 0}
+};
+
+static driver_t auxio_sbus_driver = {
+	"auxio",
+	auxio_sbus_methods,
+	sizeof(struct auxio_softc)
+};
+
+static devclass_t	auxio_devclass;
+DRIVER_MODULE(auxio, sbus, auxio_sbus_driver, auxio_devclass, 0, 0);
+
+/* EBus */
+static device_method_t auxio_ebus_methods[] = {
+	DEVMETHOD(device_probe,		auxio_bus_probe),
+	DEVMETHOD(device_attach,	auxio_ebus_attach),
+	DEVMETHOD(device_detach,	auxio_bus_detach),
+	{0, 0}
+};
+
+static driver_t auxio_ebus_driver = {
+	"auxio",
+	auxio_ebus_methods,
+	sizeof(struct auxio_softc)
+};
+
+DRIVER_MODULE(auxio, ebus, auxio_ebus_driver, auxio_devclass, 0, 0);
+MODULE_VERSION(auxio, 1);
+
+#define AUXIO_LOCK_INIT(sc)	\
+	mtx_init(&sc->sc_lock, "auxio mtx", NULL, MTX_DEF)
+#define AUXIO_LOCK(sc)		mtx_lock(&sc->sc_lock)
+#define AUXIO_UNLOCK(sc)	mtx_unlock(&sc->sc_lock)
+#define AUXIO_LOCK_DESTROY(sc)	mtx_destroy(&sc->sc_lock)
+
+static __inline void
+auxio_led_write(struct auxio_softc *sc, u_int32_t v)
+{
+	if (sc->sc_flags & AUXIO_EBUS)
+		bus_space_write_4(sc->sc_regt[AUXIO_PCIO_LED],
+		    sc->sc_regh[AUXIO_PCIO_LED], 0, v);
+	else
+		bus_space_write_1(sc->sc_regt[AUXIO_PCIO_LED],
+		    sc->sc_regh[AUXIO_PCIO_LED], 0, v);
+}
+
+static __inline u_int32_t
+auxio_led_read(struct auxio_softc *sc)
+{
+	u_int32_t led;
+
+	if (sc->sc_flags & AUXIO_EBUS)
+		led = bus_space_read_4(sc->sc_regt[AUXIO_PCIO_LED],
+		    sc->sc_regh[AUXIO_PCIO_LED], 0);
+	else
+		led = bus_space_read_1(sc->sc_regt[AUXIO_PCIO_LED],
+		    sc->sc_regh[AUXIO_PCIO_LED], 0);
+
+	return (led);
+}
+
+static void
+auxio_led_func(void *arg, int onoff)
+{
+	struct auxio_softc *sc;
+	u_int32_t led;
+
+	sc = (struct auxio_softc *)arg;
+
+	led = onoff ? AUXIO_LED_LED : 0;
+	AUXIO_LOCK(sc);
+	auxio_led_write(sc, led);
+	AUXIO_UNLOCK(sc);
+}
+
+static int
+auxio_bus_probe(device_t dev)
+{
+	const char *name;
+
+	name = ofw_bus_get_name(dev);
+	if (strcmp("auxio", name) == 0) {
+		device_set_desc(dev, "Sun Auxiliary I/O");
+		return (0);
+	}
+
+	return (ENXIO);
+}
+
+static int
+auxio_ebus_attach(device_t dev)
+{
+	struct auxio_softc *sc;
+	struct resource *res;
+	u_long start, count;
+	int i;
+
+	sc = device_get_softc(dev);
+	bzero(sc, sizeof(*sc));
+	sc->sc_dev = dev;
+
+	AUXIO_LOCK_INIT(sc);
+	sc->sc_nauxio = AUXIO_PCIO_MAX;
+	sc->sc_flags = AUXIO_LEDONLY | AUXIO_EBUS;
+	for (i = 0;
+	    i < AUXIO_PCIO_MAX &&
+	    bus_get_resource(dev, SYS_RES_IOPORT, i, &start, &count) == 0;
+             i++) {
+		sc->sc_rid[i] = i;
+		if (bootverbose)
+			device_printf(sc->sc_dev,
+			    "Got rid %d, start %#lx, count %#lx\n",
+			    i, start, count);
+		res = bus_alloc_resource_any(dev, SYS_RES_IOPORT,
+		    &sc->sc_rid[i], RF_ACTIVE);
+		if (res == NULL) {
+			device_printf(sc->sc_dev,
+			    "could not allocate resources\n");
+			goto attach_fail;
+		}
+		sc->sc_res[i] = res;
+		sc->sc_regt[i] = rman_get_bustag(res);
+		sc->sc_regh[i] = rman_get_bushandle(res);
+	}
+	sc->sc_nauxio = i;
+	auxio_attach_common(sc);
+
+	return (0);
+
+attach_fail:
+	auxio_free_resource(sc);
+
+	return (ENXIO);
+}
+
+static void
+auxio_attach_common(struct auxio_softc *sc)
+{
+	sc->sc_led_stat = auxio_led_read(sc);
+	sc->sc_led_dev = led_create(auxio_led_func, sc, "auxioled");
+	/* turn on the LED */
+	auxio_led_func(sc, 1);
+}
+
+static int
+auxio_bus_detach(device_t dev)
+{
+	struct auxio_softc *sc;
+
+	sc = device_get_softc(dev);
+	led_destroy(sc->sc_led_dev);
+	auxio_led_func(sc, sc->sc_led_stat);
+	auxio_free_resource(sc);
+
+	return (0);
+}
+
+static void
+auxio_free_resource(struct auxio_softc *sc)
+{
+	int i, n;
+
+	n = sc->sc_nauxio;
+	for (i = 0; i < n; i++)
+		if (sc->sc_res[i])
+			bus_release_resource(sc->sc_dev,
+			    (sc->sc_flags & AUXIO_SBUS) ? SYS_RES_MEMORY :
+			    SYS_RES_IOPORT, sc->sc_rid[i], sc->sc_res[i]);
+	AUXIO_LOCK_DESTROY(sc);
+}
+
+static int
+auxio_sbus_attach(device_t dev)
+{
+	struct auxio_softc *sc;
+	struct resource *res;
+
+	sc = device_get_softc(dev);
+	bzero(sc, sizeof(*sc));
+	sc->sc_dev = dev;
+
+	AUXIO_LOCK_INIT(sc);
+	sc->sc_nauxio = 1;
+	sc->sc_flags = AUXIO_LEDONLY | AUXIO_SBUS;
+	sc->sc_rid[AUXIO_PCIO_LED] = 0;
+	res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 
+	    &sc->sc_rid[AUXIO_PCIO_LED], RF_ACTIVE);
+	if (res == NULL) {
+		device_printf(sc->sc_dev, "could not allocate resources\n");
+		goto attach_fail;
+	}
+	sc->sc_res[AUXIO_PCIO_LED] = res;
+	sc->sc_regt[AUXIO_PCIO_LED] = rman_get_bustag(res);
+	sc->sc_regh[AUXIO_PCIO_LED] = rman_get_bushandle(res);
+	auxio_attach_common(sc);
+	return (0);
+
+attach_fail:
+	auxio_free_resource(sc);
+
+	return (ENXIO);
+}
diff --git a/sys/dev/auxio/auxioreg.h b/sys/dev/auxio/auxioreg.h
new file mode 100644
index 0000000..439bf34
--- /dev/null
+++ b/sys/dev/auxio/auxioreg.h
@@ -0,0 +1,73 @@
+/*	$FreeBSD$ */
+/*	$NetBSD: auxioreg.h,v 1.4 2001/10/22 07:31:41 mrg Exp $	*/
+
+/*
+ * Copyright (c) 2000 Matthew R. Green
+ * 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. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
+ */
+
+/*
+ * The AUXIO registers; their offset in the Ebus2 address space, plus the
+ * bits for each register.  Note that the fdthree (FD), SUNW,CS4231 (AUDIO)
+ * and power (POWER) devices on the Ebus2 have their AUXIO regsiters mapped
+ * into their own "reg" properties, not the "auxio" device's "reg" properties.
+ */
+#define	AUXIO_FD			0x00720000
+#define	AUXIO_FD_DENSENSE_INPUT		0x0
+#define	AUXIO_FD_DENSENSE_OUTPUT	0x1
+
+#define	AUXIO_AUDIO			0x00722000
+#define	AUXIO_AUDIO_POWERDOWN		0x0
+
+#define	AUXIO_POWER			0x00724000
+#define	AUXIO_POWER_SYSTEM_OFF		0x0
+#define	AUXIO_POWER_COURTESY_OFF	0x1
+
+#define	AUXIO_LED			0x00726000
+#define	AUXIO_LED_LED			1
+
+#define	AUXIO_PCI			0x00728000
+#define	AUXIO_PCI_SLOT0			0x0	/* two bits each */
+#define	AUXIO_PCI_SLOT1			0x2
+#define	AUXIO_PCI_SLOT2			0x4
+#define	AUXIO_PCI_SLOT3			0x6
+#define	AUXIO_PCI_MODE			0x8
+
+#define	AUXIO_FREQ			0x0072a000
+#define	AUXIO_FREQ_FREQ0		0x0
+#define	AUXIO_FREQ_FREQ1		0x1
+#define	AUXIO_FREQ_FREQ2		0x2
+
+#define	AUXIO_SCSI			0x0072c000
+#define	AUXIO_SCSI_INT_OSC_EN		0x0
+#define	AUXIO_SCSI_EXT_OSC_EN		0x1
+
+#define	AUXIO_TEMP			0x0072f000
+#define	AUXIO_TEMP_SELECT		0x0
+#define	AUXIO_TEMP_CLOCK		0x1
+#define	AUXIO_TEMP_ENABLE		0x2
+#define	AUXIO_TEMP_DATAOUT		0x3
+#define	AUXIO_TEMP_DATAINT		0x4
diff --git a/sys/modules/Makefile b/sys/modules/Makefile
index 1c2478d..a3cceea 100644
--- a/sys/modules/Makefile
+++ b/sys/modules/Makefile
@@ -28,6 +28,7 @@ SUBDIR=	${_3dfx} \
 	${_ath_hal} \
 	aue \
 	autofs \
+	${_auxio} \
 	${_awi} \
 	axe \
 	bfe \
@@ -438,6 +439,7 @@ _gem=		gem
 .endif
 
 .if ${MACHINE_ARCH} == "sparc64"
+_auxio=		auxio
 _gem=		gem
 .endif
 
diff --git a/sys/modules/auxio/Makefile b/sys/modules/auxio/Makefile
new file mode 100644
index 0000000..06c3028
--- /dev/null
+++ b/sys/modules/auxio/Makefile
@@ -0,0 +1,10 @@
+# $FreeBSD$
+
+.PATH: ${.CURDIR}/../../dev/auxio
+
+KMOD=	auxio
+
+SRCS=	auxio.c
+SRCS+=  device_if.h bus_if.h
+
+.include <bsd.kmod.mk>
diff --git a/sys/sparc64/conf/GENERIC b/sys/sparc64/conf/GENERIC
index b325783..f24a998 100644
--- a/sys/sparc64/conf/GENERIC
+++ b/sys/sparc64/conf/GENERIC
@@ -124,6 +124,7 @@ device		ses		# SCSI Environmental Services (and SAF-TE)
 device		ofw_console	# Open Firmware console device
 
 # Builtin hardware
+device		auxio		# auxiliary I/O device
 device		genclock	# Generic clock interface
 device		eeprom		# eeprom (really a front-end for the MK48Txx)
 device		"mk48txx"	# Mostek MK48T02, MK48T08, MK48T59 clock
diff --git a/sys/sparc64/conf/NOTES b/sys/sparc64/conf/NOTES
index 311b80f..7fd6e274 100644
--- a/sys/sparc64/conf/NOTES
+++ b/sys/sparc64/conf/NOTES
@@ -47,6 +47,7 @@ device		"mk48txx"	# Mostek MK48T02, MK48T08, MK48T59 clock
 # Optional devices:
 #
 
+device		auxio		# auxiliary I/O device
 device		creator		# Creator, Creator3D and Elite3D graphics cards
 
 device		ofw_console	# Open Firmware console device