drm/amdkfd: Allocate gart memory using new interface
[firefly-linux-kernel-4.4.55.git] / include / net / cfg802154.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  * Written by:
14  * Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
15  */
16
17 #ifndef __NET_CFG802154_H
18 #define __NET_CFG802154_H
19
20 #include <linux/ieee802154.h>
21 #include <linux/netdevice.h>
22 #include <linux/mutex.h>
23 #include <linux/bug.h>
24
25 #include <net/nl802154.h>
26
27 struct wpan_phy;
28
29 struct cfg802154_ops {
30         struct net_device * (*add_virtual_intf_deprecated)(struct wpan_phy *wpan_phy,
31                                                            const char *name,
32                                                            int type);
33         void    (*del_virtual_intf_deprecated)(struct wpan_phy *wpan_phy,
34                                                struct net_device *dev);
35         int     (*add_virtual_intf)(struct wpan_phy *wpan_phy,
36                                     const char *name,
37                                     enum nl802154_iftype type,
38                                     __le64 extended_addr);
39         int     (*del_virtual_intf)(struct wpan_phy *wpan_phy,
40                                     struct wpan_dev *wpan_dev);
41         int     (*set_channel)(struct wpan_phy *wpan_phy, u8 page, u8 channel);
42         int     (*set_pan_id)(struct wpan_phy *wpan_phy,
43                               struct wpan_dev *wpan_dev, __le16 pan_id);
44         int     (*set_short_addr)(struct wpan_phy *wpan_phy,
45                                   struct wpan_dev *wpan_dev, __le16 short_addr);
46         int     (*set_backoff_exponent)(struct wpan_phy *wpan_phy,
47                                         struct wpan_dev *wpan_dev, u8 min_be,
48                                         u8 max_be);
49         int     (*set_max_csma_backoffs)(struct wpan_phy *wpan_phy,
50                                          struct wpan_dev *wpan_dev,
51                                          u8 max_csma_backoffs);
52         int     (*set_max_frame_retries)(struct wpan_phy *wpan_phy,
53                                          struct wpan_dev *wpan_dev,
54                                          s8 max_frame_retries);
55         int     (*set_lbt_mode)(struct wpan_phy *wpan_phy,
56                                 struct wpan_dev *wpan_dev, bool mode);
57 };
58
59 struct wpan_phy {
60         struct mutex pib_lock;
61
62         /* If multiple wpan_phys are registered and you're handed e.g.
63          * a regular netdev with assigned ieee802154_ptr, you won't
64          * know whether it points to a wpan_phy your driver has registered
65          * or not. Assign this to something global to your driver to
66          * help determine whether you own this wpan_phy or not.
67          */
68         const void *privid;
69
70         /*
71          * This is a PIB according to 802.15.4-2011.
72          * We do not provide timing-related variables, as they
73          * aren't used outside of driver
74          */
75         u8 current_channel;
76         u8 current_page;
77         u32 channels_supported[IEEE802154_MAX_PAGE + 1];
78         s8 transmit_power;
79         u8 cca_mode;
80
81         __le64 perm_extended_addr;
82
83         s32 cca_ed_level;
84
85         /* PHY depended MAC PIB values */
86
87         /* 802.15.4 acronym: Tdsym in usec */
88         u8 symbol_duration;
89         /* lifs and sifs periods timing */
90         u16 lifs_period;
91         u16 sifs_period;
92
93         struct device dev;
94
95         char priv[0] __aligned(NETDEV_ALIGN);
96 };
97
98 struct wpan_dev {
99         struct wpan_phy *wpan_phy;
100         int iftype;
101
102         /* the remainder of this struct should be private to cfg802154 */
103         struct list_head list;
104         struct net_device *netdev;
105
106         u32 identifier;
107
108         /* MAC PIB */
109         __le16 pan_id;
110         __le16 short_addr;
111         __le64 extended_addr;
112
113         /* MAC BSN field */
114         u8 bsn;
115         /* MAC DSN field */
116         u8 dsn;
117
118         u8 min_be;
119         u8 max_be;
120         u8 csma_retries;
121         s8 frame_retries;
122
123         bool lbt;
124
125         bool promiscuous_mode;
126 };
127
128 #define to_phy(_dev)    container_of(_dev, struct wpan_phy, dev)
129
130 struct wpan_phy *
131 wpan_phy_new(const struct cfg802154_ops *ops, size_t priv_size);
132 static inline void wpan_phy_set_dev(struct wpan_phy *phy, struct device *dev)
133 {
134         phy->dev.parent = dev;
135 }
136
137 int wpan_phy_register(struct wpan_phy *phy);
138 void wpan_phy_unregister(struct wpan_phy *phy);
139 void wpan_phy_free(struct wpan_phy *phy);
140 /* Same semantics as for class_for_each_device */
141 int wpan_phy_for_each(int (*fn)(struct wpan_phy *phy, void *data), void *data);
142
143 static inline void *wpan_phy_priv(struct wpan_phy *phy)
144 {
145         BUG_ON(!phy);
146         return &phy->priv;
147 }
148
149 struct wpan_phy *wpan_phy_find(const char *str);
150
151 static inline void wpan_phy_put(struct wpan_phy *phy)
152 {
153         put_device(&phy->dev);
154 }
155
156 static inline const char *wpan_phy_name(struct wpan_phy *phy)
157 {
158         return dev_name(&phy->dev);
159 }
160
161 #endif /* __NET_CFG802154_H */