1 files changed, 108 insertions, 0 deletions
diff --git a/sys/arm/xscale/ixp425/cambria_fled.c b/sys/arm/xscale/ixp425/cambria_fled.c
new file mode 100644
index 0000000..ede1577
--- /dev/null
+++ b/sys/arm/xscale/ixp425/cambria_fled.c
@@ -0,0 +1,108 @@
+/*-
+ * Copyright (c) 2008 Sam Leffler.  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 ``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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+/*
+ * Cambria Front Panel LED sitting on the I2C bus.
+ */
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/bus.h>
+
+#include <machine/bus.h>
+
+#include <dev/iicbus/iiconf.h>
+#include <dev/led/led.h>
+
+#include "iicbus_if.h"
+
+#define	IIC_M_WR	0	/* write operation */
+#define	LED_ADDR	0xae	/* slave address */
+
+struct fled_softc {
+	struct cdev	*sc_led;
+};
+
+static int
+fled_probe(device_t dev)
+{
+	device_set_desc(dev, "Gateworks Cambria Front Panel LED");
+	return 0;
+}
+
+static void
+fled_cb(void *arg, int onoff)
+{
+	uint8_t data[1];
+	struct iic_msg msgs[1] = {
+	     { LED_ADDR, IIC_M_WR, 1, data },
+	};
+	device_t dev = arg;
+
+	data[0] = (onoff == 0);		/* NB: low true */
+	(void) iicbus_transfer(dev, msgs, 1);
+}
+
+static int
+fled_attach(device_t dev)
+{
+	struct fled_softc *sc = device_get_softc(dev);
+
+	sc->sc_led = led_create(fled_cb, dev, "front");
+
+	return 0;
+}
+
+static int
+fled_detach(device_t dev)
+{
+	struct fled_softc *sc = device_get_softc(dev);
+
+	if (sc->sc_led != NULL)
+		led_destroy(sc->sc_led);
+
+	return 0;
+}
+
+static device_method_t fled_methods[] = {
+	DEVMETHOD(device_probe,		fled_probe),
+	DEVMETHOD(device_attach,	fled_attach),
+	DEVMETHOD(device_detach,	fled_detach),
+
+	{0, 0},
+};
+
+static driver_t fled_driver = {
+	"fled",
+	fled_methods,
+	sizeof(struct fled_softc),
+};
+static devclass_t fled_devclass;
+
+DRIVER_MODULE(fled, iicbus, fled_driver, fled_devclass, 0, 0);
+MODULE_VERSION(fled, 1);
+MODULE_DEPEND(fled, iicbus, 1, 1, 1);