ieee802154: add a sysfs representation of WPAN master devices

Add a sysfs/in-kernel representation of LR-WPAN master devices.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>

include/net/wpan-phy.h

@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2007, 2008, 2009 Siemens AG
+ *
+ * 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Written by:
+ * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
+ */
+
+#ifndef WPAN_PHY_H
+#define WPAN_PHY_H
+
+#include <linux/netdevice.h>
+#include <linux/mutex.h>
+
+struct wpan_phy {
+	struct mutex pib_lock;
+
+	/*
+	 * This is a PIB acording to 802.15.4-2006.
+	 * We do not provide timing-related variables, as they
+	 * aren't used outside of driver
+	 */
+	u8 current_channel;
+	u8 current_page;
+	u32 channels_supported;
+	u8 transmit_power;
+	u8 cca_mode;
+
+	struct device dev;
+	int idx;
+
+	char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
+};
+
+struct wpan_phy *wpan_phy_alloc(size_t priv_size);
+int wpan_phy_register(struct device *parent, struct wpan_phy *phy);
+void wpan_phy_unregister(struct wpan_phy *phy);
+void wpan_phy_free(struct wpan_phy *phy);
+
+static inline void *wpan_phy_priv(struct wpan_phy *phy)
+{
+	BUG_ON(!phy);
+	return &phy->priv;
+}
+
+struct wpan_phy *wpan_phy_find(const char *str);
+static inline const char *wpan_phy_name(struct wpan_phy *phy)
+{
+	return dev_name(&phy->dev);
+}
+#endif