include/net/wpan-phy.h

   1 /*
   2  * Copyright (C) 2007, 2008, 2009 Siemens AG
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2
   6  * as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  16  *
  17  * Written by:
  18  * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
  19  */
  20
  21 #ifndef WPAN_PHY_H
  22 #define WPAN_PHY_H
  23
  24 #include <linux/netdevice.h>
  25 #include <linux/mutex.h>
  26 #include <linux/bug.h>
  27
  28 struct wpan_phy {
  29         struct mutex pib_lock;
  30
  31         /*
  32          * This is a PIB according to 802.15.4-2006.
  33          * We do not provide timing-related variables, as they
  34          * aren't used outside of driver
  35          */
  36         u8 current_channel;
  37         u8 current_page;
  38         u32 channels_supported[32];
  39         u8 transmit_power;
  40         u8 cca_mode;
  41
  42         struct device dev;
  43         int idx;
  44
  45         struct net_device *(*add_iface)(struct wpan_phy *phy,
  46                         const char *name);
  47         void (*del_iface)(struct wpan_phy *phy, struct net_device *dev);
  48
  49         char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
  50 };
  51
  52 #define to_phy(_dev)    container_of(_dev, struct wpan_phy, dev)
  53
  54 struct wpan_phy *wpan_phy_alloc(size_t priv_size);
  55 static inline void wpan_phy_set_dev(struct wpan_phy *phy, struct device *dev)
  56 {
  57         phy->dev.parent = dev;
  58 }
  59 int wpan_phy_register(struct wpan_phy *phy);
  60 void wpan_phy_unregister(struct wpan_phy *phy);
  61 void wpan_phy_free(struct wpan_phy *phy);
  62 /* Same semantics as for class_for_each_device */
  63 int wpan_phy_for_each(int (*fn)(struct wpan_phy *phy, void *data), void *data);
  64
  65 static inline void *wpan_phy_priv(struct wpan_phy *phy)
  66 {
  67         BUG_ON(!phy);
  68         return &phy->priv;
  69 }
  70
  71 struct wpan_phy *wpan_phy_find(const char *str);
  72
  73 static inline void wpan_phy_put(struct wpan_phy *phy)
  74 {
  75         put_device(&phy->dev);
  76 }
  77
  78 static inline const char *wpan_phy_name(struct wpan_phy *phy)
  79 {
  80         return dev_name(&phy->dev);
  81 }
  82 #endif