1 /* 2 * Copyright (c) 2008-2009 Atheros Communications Inc. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #ifndef ATH_H 18 #define ATH_H 19 20 #include <linux/skbuff.h> 21 #include <linux/if_ether.h> 22 #include <net/mac80211.h> 23 24 /* 25 * The key cache is used for h/w cipher state and also for 26 * tracking station state such as the current tx antenna. 27 * We also setup a mapping table between key cache slot indices 28 * and station state to short-circuit node lookups on rx. 29 * Different parts have different size key caches. We handle 30 * up to ATH_KEYMAX entries (could dynamically allocate state). 31 */ 32 #define ATH_KEYMAX 128 /* max key cache size we handle */ 33 34 static const u8 ath_bcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 35 36 struct ath_ani { 37 bool caldone; 38 int16_t noise_floor; 39 unsigned int longcal_timer; 40 unsigned int shortcal_timer; 41 unsigned int resetcal_timer; 42 unsigned int checkani_timer; 43 struct timer_list timer; 44 }; 45 46 enum ath_device_state { 47 ATH_HW_UNAVAILABLE, 48 ATH_HW_INITIALIZED, 49 }; 50 51 struct reg_dmn_pair_mapping { 52 u16 regDmnEnum; 53 u16 reg_5ghz_ctl; 54 u16 reg_2ghz_ctl; 55 }; 56 57 struct ath_regulatory { 58 char alpha2[2]; 59 u16 country_code; 60 u16 max_power_level; 61 u32 tp_scale; 62 u16 current_rd; 63 u16 current_rd_ext; 64 int16_t power_limit; 65 struct reg_dmn_pair_mapping *regpair; 66 }; 67 68 struct ath_ops { 69 unsigned int (*read)(void *, u32 reg_offset); 70 void (*write)(void *, u32 val, u32 reg_offset); 71 }; 72 73 struct ath_common; 74 75 struct ath_bus_ops { 76 void (*read_cachesize)(struct ath_common *common, int *csz); 77 void (*cleanup)(struct ath_common *common); 78 bool (*eeprom_read)(struct ath_common *common, u32 off, u16 *data); 79 void (*bt_coex_prep)(struct ath_common *common); 80 }; 81 82 struct ath_common { 83 void *ah; 84 void *priv; 85 struct ieee80211_hw *hw; 86 int debug_mask; 87 enum ath_device_state state; 88 89 struct ath_ani ani; 90 91 u16 cachelsz; 92 u16 curaid; 93 u8 macaddr[ETH_ALEN]; 94 u8 curbssid[ETH_ALEN]; 95 u8 bssidmask[ETH_ALEN]; 96 97 u8 tx_chainmask; 98 u8 rx_chainmask; 99 100 u32 rx_bufsize; 101 102 u32 keymax; 103 DECLARE_BITMAP(keymap, ATH_KEYMAX); 104 u8 splitmic; 105 106 struct ath_regulatory regulatory; 107 const struct ath_ops *ops; 108 const struct ath_bus_ops *bus_ops; 109 }; 110 111 struct sk_buff *ath_rxbuf_alloc(struct ath_common *common, 112 u32 len, 113 gfp_t gfp_mask); 114 115 void ath_hw_setbssidmask(struct ath_common *common); 116 117 #endif /* ATH_H */ 118