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-rw-r--r--sys/dev/smbus/smbus.c118
1 files changed, 118 insertions, 0 deletions
diff --git a/sys/dev/smbus/smbus.c b/sys/dev/smbus/smbus.c
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+++ b/sys/dev/smbus/smbus.c
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+/*-
+ * Copyright (c) 1998, 2001 Nicolas Souchu
+ * 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 <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/bus.h>
+
+#include <dev/smbus/smbconf.h>
+#include <dev/smbus/smbus.h>
+
+/*
+ * Autoconfiguration and support routines for the Philips serial I2C bus
+ */
+
+#define DEVTOSMBUS(dev) ((struct smbus_device*)device_get_ivars(dev))
+
+static devclass_t smbus_devclass;
+
+/*
+ * Device methods
+ */
+static int smbus_probe(device_t);
+static int smbus_attach(device_t);
+static int smbus_add_child(device_t dev, int order, const char *name, int unit);
+
+static device_method_t smbus_methods[] = {
+ /* device interface */
+ DEVMETHOD(device_probe, smbus_probe),
+ DEVMETHOD(device_attach, smbus_attach),
+ DEVMETHOD(device_detach, bus_generic_detach),
+
+ /* bus interface */
+ DEVMETHOD(bus_add_child, smbus_add_child),
+ DEVMETHOD(bus_print_child, bus_generic_print_child),
+
+ { 0, 0 }
+};
+
+static driver_t smbus_driver = {
+ "smbus",
+ smbus_methods,
+ sizeof(struct smbus_softc),
+};
+
+/*
+ * At 'probe' time, we add all the devices which we know about to the
+ * bus. The generic attach routine will probe and attach them if they
+ * are alive.
+ */
+static int
+smbus_probe(device_t dev)
+{
+ device_set_desc(dev, "System Management Bus");
+
+ return (0);
+}
+
+static int
+smbus_attach(device_t dev)
+{
+ device_add_child(dev, NULL, -1);
+ bus_generic_attach(dev);
+
+ return (0);
+}
+
+static int
+smbus_add_child(device_t dev, int order, const char *name, int unit)
+{
+ device_add_child_ordered(dev, order, name, unit);
+
+ bus_generic_attach(dev);
+
+ return (0);
+}
+
+void
+smbus_generic_intr(device_t dev, u_char devaddr, char low, char high)
+{
+ return;
+}
+
+DRIVER_MODULE(smbus, iicsmb, smbus_driver, smbus_devclass, 0, 0);
+DRIVER_MODULE(smbus, bktr, smbus_driver, smbus_devclass, 0, 0);
+DRIVER_MODULE(smbus, intsmb, smbus_driver, smbus_devclass, 0, 0);
+DRIVER_MODULE(smbus, alpm, smbus_driver, smbus_devclass, 0, 0);
+DRIVER_MODULE(smbus, ichsmb, smbus_driver, smbus_devclass, 0, 0);
+DRIVER_MODULE(smbus, amdpm, smbus_driver, smbus_devclass, 0, 0);
+DRIVER_MODULE(smbus, viapropm, smbus_driver, smbus_devclass, 0, 0);
+DRIVER_MODULE(smbus, nfpm, smbus_driver, smbus_devclass, 0, 0);
+MODULE_VERSION(smbus, SMBUS_MODVER);
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