xref: /openbmc/linux/drivers/net/wireless/ath/ath5k/base.h (revision e5451c8f8330e03ad3cfa16048b4daf961af434f)
1  /*-
2   * Copyright (c) 2002-2007 Sam Leffler, Errno Consulting
3   * All rights reserved.
4   *
5   * Redistribution and use in source and binary forms, with or without
6   * modification, are permitted provided that the following conditions
7   * are met:
8   * 1. Redistributions of source code must retain the above copyright
9   *    notice, this list of conditions and the following disclaimer,
10   *    without modification.
11   * 2. Redistributions in binary form must reproduce at minimum a disclaimer
12   *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
13   *    redistribution must be conditioned upon including a substantially
14   *    similar Disclaimer requirement for further binary redistribution.
15   * 3. Neither the names of the above-listed copyright holders nor the names
16   *    of any contributors may be used to endorse or promote products derived
17   *    from this software without specific prior written permission.
18   *
19   * Alternatively, this software may be distributed under the terms of the
20   * GNU General Public License ("GPL") version 2 as published by the Free
21   * Software Foundation.
22   *
23   * NO WARRANTY
24   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
25   * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
26   * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
27   * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
28   * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
29   * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31   * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
32   * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
34   * THE POSSIBILITY OF SUCH DAMAGES.
35   *
36   */
37  
38  /*
39   * Definitions for the Atheros Wireless LAN controller driver.
40   */
41  #ifndef _DEV_ATH5K_BASE_H
42  #define _DEV_ATH5K_BASE_H
43  
44  struct ieee80211_vif;
45  struct ieee80211_hw;
46  struct ath5k_hw;
47  struct ath5k_txq;
48  struct ieee80211_channel;
49  struct ath_bus_ops;
50  struct ieee80211_tx_control;
51  enum nl80211_iftype;
52  
53  enum ath5k_srev_type {
54  	AR5K_VERSION_MAC,
55  	AR5K_VERSION_RAD,
56  };
57  
58  struct ath5k_srev_name {
59  	const char		*sr_name;
60  	enum ath5k_srev_type	sr_type;
61  	u_int			sr_val;
62  };
63  
64  struct ath5k_buf {
65  	struct list_head		list;
66  	struct ath5k_desc		*desc;		/* virtual addr of desc */
67  	dma_addr_t			daddr;		/* physical addr of desc */
68  	struct sk_buff			*skb;		/* skbuff for buf */
69  	dma_addr_t			skbaddr;	/* physical addr of skb data */
70  	struct ieee80211_tx_rate	rates[4];	/* number of multi-rate stages */
71  };
72  
73  struct ath5k_vif {
74  	bool			assoc; /* are we associated or not */
75  	enum nl80211_iftype	opmode;
76  	int			bslot;
77  	struct ath5k_buf	*bbuf; /* beacon buffer */
78  };
79  
80  struct ath5k_vif_iter_data {
81  	const u8	*hw_macaddr;
82  	u8		mask[ETH_ALEN];
83  	u8		active_mac[ETH_ALEN]; /* first active MAC */
84  	bool		need_set_hw_addr;
85  	bool		found_active;
86  	bool		any_assoc;
87  	enum nl80211_iftype opmode;
88  	int n_stas;
89  };
90  
91  void ath5k_vif_iter(void *data, u8 *mac, struct ieee80211_vif *vif);
92  bool ath5k_any_vif_assoc(struct ath5k_hw *ah);
93  
94  int ath5k_start(struct ieee80211_hw *hw);
95  void ath5k_stop(struct ieee80211_hw *hw);
96  
97  void ath5k_beacon_update_timers(struct ath5k_hw *ah, u64 bc_tsf);
98  int ath5k_beacon_update(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
99  void ath5k_beacon_config(struct ath5k_hw *ah);
100  void ath5k_set_beacon_filter(struct ieee80211_hw *hw, bool enable);
101  
102  void ath5k_update_bssid_mask_and_opmode(struct ath5k_hw *ah,
103  					struct ieee80211_vif *vif);
104  int ath5k_chan_set(struct ath5k_hw *ah, struct cfg80211_chan_def *chandef);
105  void ath5k_txbuf_free_skb(struct ath5k_hw *ah, struct ath5k_buf *bf);
106  void ath5k_rxbuf_free_skb(struct ath5k_hw *ah, struct ath5k_buf *bf);
107  void ath5k_tx_queue(struct ieee80211_hw *hw, struct sk_buff *skb,
108  		    struct ath5k_txq *txq, struct ieee80211_tx_control *control);
109  
110  const char *ath5k_chip_name(enum ath5k_srev_type type, u_int16_t val);
111  
112  int ath5k_init_ah(struct ath5k_hw *ah, const struct ath_bus_ops *bus_ops);
113  void ath5k_deinit_ah(struct ath5k_hw *ah);
114  
115  /* Check whether BSSID mask is supported */
116  #define ath5k_hw_hasbssidmask(_ah) (ah->ah_version == AR5K_AR5212)
117  
118  /* Check whether virtual EOL is supported */
119  #define ath5k_hw_hasveol(_ah) (ah->ah_version != AR5K_AR5210)
120  
121  #endif	/* _DEV_ATH5K_BASE_H */
122