From 4fe64c1ea26c8d0d5c2d51c495a83824613cf2e4 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 14 Oct 2008 18:05:16 +0200
Subject: Add first step towards providing device abstraction

---
 src/Makefile.am |   3 +-
 src/device.c    | 152 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 154 insertions(+), 1 deletion(-)
 create mode 100644 src/device.c

(limited to 'src')

diff --git a/src/Makefile.am b/src/Makefile.am
index 52082cd1..afa1ce91 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -12,7 +12,8 @@ DISTCLEANFILES = $(service_DATA)
 sbin_PROGRAMS = connmand
 
 connmand_SOURCES = main.c connman.h log.c error.c plugin.c profile.c \
-		element.c security.c storage.c manager.c agent.c rtnl.c
+				element.c device.c security.c storage.c \
+						manager.c agent.c rtnl.c
 
 connmand_LDADD = @GDBUS_LIBS@ @GLIB_LIBS@ @GTHREAD_LIBS@ -ldl
 
diff --git a/src/device.c b/src/device.c
new file mode 100644
index 00000000..6b73438a
--- /dev/null
+++ b/src/device.c
@@ -0,0 +1,152 @@
+/*
+ *
+ *  Connection Manager
+ *
+ *  Copyright (C) 2007-2008  Intel Corporation. All rights reserved.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <errno.h>
+
+#include "connman.h"
+
+static GSList *driver_list = NULL;
+
+static gboolean match_driver(struct connman_device *device,
+					struct connman_device_driver *driver)
+{
+	if (device->element->subtype == driver->type ||
+			driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
+		return TRUE;
+
+	return FALSE;
+}
+
+static int device_probe(struct connman_element *element)
+{
+	struct connman_device *device;
+	GSList *list;
+
+	DBG("element %p name %s", element, element->name);
+
+	device = g_try_new0(struct connman_device, 1);
+	if (device == NULL)
+		return -ENOMEM;
+
+	device->element = element;
+
+	for (list = driver_list; list; list = list->next) {
+		struct connman_device_driver *driver = list->data;
+
+		if (match_driver(device, driver) == FALSE)
+			continue;
+
+		DBG("driver %p name %s", driver, driver->name);
+
+		if (driver->probe(device) == 0) {
+			device->driver = driver;
+			connman_element_set_data(element, device);
+			return 0;
+		}
+	}
+
+	g_free(device);
+
+	return -ENODEV;
+}
+
+static int device_remove(struct connman_element *element)
+{
+	struct connman_device *device = connman_element_get_data(element);
+
+	DBG("element %p name %s", element, element->name);
+
+	if (device->driver && device->driver->remove)
+		device->driver->remove(device);
+
+	connman_element_set_data(element, NULL);
+
+	g_free(device);
+
+	return 0;
+}
+
+static struct connman_driver device_driver = {
+	.name		= "device",
+	.type		= CONNMAN_ELEMENT_TYPE_DEVICE,
+	.priority	= CONNMAN_DRIVER_PRIORITY_LOW,
+	.probe		= device_probe,
+	.remove		= device_remove,
+};
+
+int __connman_device_init(void)
+{
+	DBG("");
+
+	return connman_driver_register(&device_driver);
+}
+
+void __connman_device_cleanup(void)
+{
+	DBG("");
+
+	connman_driver_unregister(&device_driver);
+}
+
+static gint compare_priority(gconstpointer a, gconstpointer b)
+{
+	const struct connman_device_driver *driver1 = a;
+	const struct connman_device_driver *driver2 = b;
+
+	return driver2->priority - driver1->priority;
+}
+
+/**
+ * connman_device_driver_register:
+ * @driver: device driver definition
+ *
+ * Register a new device driver
+ *
+ * Returns: %0 on success
+ */
+int connman_device_driver_register(struct connman_device_driver *driver)
+{
+	DBG("driver %p name %s", driver, driver->name);
+
+	driver_list = g_slist_insert_sorted(driver_list, driver,
+							compare_priority);
+
+	__connman_driver_rescan(&device_driver);
+
+	return 0;
+}
+
+/**
+ * connman_device_driver_unregister:
+ * @driver: device driver definition
+ *
+ * Remove a previously registered device driver
+ */
+void connman_device_driver_unregister(struct connman_device_driver *driver)
+{
+	DBG("driver %p name %s", driver, driver->name);
+
+	driver_list = g_slist_remove(driver_list, driver);
+}
-- 
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