drivers/net/wireless/ar9170/ar9170.h

   1 /*
   2  * Atheros AR9170 driver
   3  *
   4  * Driver specific definitions
   5  *
   6  * Copyright 2008, Johannes Berg <johannes@sipsolutions.net>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; see the file COPYING.  If not, see
  20  * http://www.gnu.org/licenses/.
  21  *
  22  * This file incorporates work covered by the following copyright and
  23  * permission notice:
  24  *    Copyright (c) 2007-2008 Atheros Communications, Inc.
  25  *
  26  *    Permission to use, copy, modify, and/or distribute this software for any
  27  *    purpose with or without fee is hereby granted, provided that the above
  28  *    copyright notice and this permission notice appear in all copies.
  29  *
  30  *    THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  31  *    WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  32  *    MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  33  *    ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  34  *    WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  35  *    ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  36  *    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  37  */
  38 #ifndef __AR9170_H
  39 #define __AR9170_H
  40
  41 #include <linux/completion.h>
  42 #include <linux/spinlock.h>
  43 #include <net/wireless.h>
  44 #include <net/mac80211.h>
  45 #ifdef CONFIG_AR9170_LEDS
  46 #include <linux/leds.h>
  47 #endif /* CONFIG_AR9170_LEDS */
  48 #include "eeprom.h"
  49 #include "hw.h"
  50
  51 #define PAYLOAD_MAX     (AR9170_MAX_CMD_LEN/4 - 1)
  52
  53 enum ar9170_bw {
  54         AR9170_BW_20,
  55         AR9170_BW_40_BELOW,
  56         AR9170_BW_40_ABOVE,
  57
  58         __AR9170_NUM_BW,
  59 };
  60
  61 enum ar9170_rf_init_mode {
  62         AR9170_RFI_NONE,
  63         AR9170_RFI_WARM,
  64         AR9170_RFI_COLD,
  65 };
  66
  67 #define AR9170_MAX_RX_BUFFER_SIZE               8192
  68
  69 #ifdef CONFIG_AR9170_LEDS
  70 struct ar9170;
  71
  72 struct ar9170_led {
  73         struct ar9170 *ar;
  74         struct led_classdev l;
  75         char name[32];
  76         unsigned int toggled;
  77         bool registered;
  78 };
  79
  80 #endif /* CONFIG_AR9170_LEDS */
  81
  82 enum ar9170_device_state {
  83         AR9170_UNKNOWN_STATE,
  84         AR9170_STOPPED,
  85         AR9170_IDLE,
  86         AR9170_STARTED,
  87         AR9170_ASSOCIATED,
  88 };
  89
  90 struct ar9170 {
  91         struct ieee80211_hw *hw;
  92         struct mutex mutex;
  93         enum ar9170_device_state state;
  94
  95         int (*open)(struct ar9170 *);
  96         void (*stop)(struct ar9170 *);
  97         int (*tx)(struct ar9170 *, struct sk_buff *, bool, unsigned int);
  98         int (*exec_cmd)(struct ar9170 *, enum ar9170_cmd, u32 ,
  99                         void *, u32 , void *);
 100         void (*callback_cmd)(struct ar9170 *, u32 , void *);
 101
 102         /* interface mode settings */
 103         struct ieee80211_vif *vif;
 104         u8 mac_addr[ETH_ALEN];
 105         u8 bssid[ETH_ALEN];
 106
 107         /* beaconing */
 108         struct sk_buff *beacon;
 109         struct work_struct beacon_work;
 110
 111         /* cryptographic engine */
 112         u64 usedkeys;
 113         bool rx_software_decryption;
 114         bool disable_offload;
 115
 116         /* filter settings */
 117         struct work_struct filter_config_work;
 118         u64 cur_mc_hash, want_mc_hash;
 119         u32 cur_filter, want_filter;
 120         unsigned int filter_changed;
 121         bool sniffer_enabled;
 122
 123         /* PHY */
 124         struct ieee80211_channel *channel;
 125         int noise[4];
 126
 127         /* power calibration data */
 128         u8 power_5G_leg[4];
 129         u8 power_2G_cck[4];
 130         u8 power_2G_ofdm[4];
 131         u8 power_5G_ht20[8];
 132         u8 power_5G_ht40[8];
 133         u8 power_2G_ht20[8];
 134         u8 power_2G_ht40[8];
 135
 136 #ifdef CONFIG_AR9170_LEDS
 137         struct delayed_work led_work;
 138         struct ar9170_led leds[AR9170_NUM_LEDS];
 139 #endif /* CONFIG_AR9170_LEDS */
 140
 141         /* qos queue settings */
 142         spinlock_t tx_stats_lock;
 143         struct ieee80211_tx_queue_stats tx_stats[5];
 144         struct ieee80211_tx_queue_params edcf[5];
 145
 146         spinlock_t cmdlock;
 147         __le32 cmdbuf[PAYLOAD_MAX + 1];
 148
 149         /* MAC statistics */
 150         struct ieee80211_low_level_stats stats;
 151
 152         /* EEPROM */
 153         struct ar9170_eeprom eeprom;
 154
 155         /* global tx status for unregistered Stations. */
 156         struct sk_buff_head global_tx_status;
 157         struct sk_buff_head global_tx_status_waste;
 158         struct delayed_work tx_status_janitor;
 159 };
 160
 161 struct ar9170_sta_info {
 162         struct sk_buff_head tx_status[__AR9170_NUM_TXQ];
 163 };
 164
 165 #define IS_STARTED(a)           (a->state >= AR9170_STARTED)
 166 #define IS_ACCEPTING_CMD(a)     (a->state >= AR9170_IDLE)
 167
 168 #define AR9170_FILTER_CHANGED_PROMISC           BIT(0)
 169 #define AR9170_FILTER_CHANGED_MULTICAST         BIT(1)
 170 #define AR9170_FILTER_CHANGED_FRAMEFILTER       BIT(2)
 171
 172 /* exported interface */
 173 void *ar9170_alloc(size_t priv_size);
 174 int ar9170_register(struct ar9170 *ar, struct device *pdev);
 175 void ar9170_rx(struct ar9170 *ar, struct sk_buff *skb);
 176 void ar9170_unregister(struct ar9170 *ar);
 177 void ar9170_handle_tx_status(struct ar9170 *ar, struct sk_buff *skb,
 178                              bool update_statistics, u16 tx_status);
 179
 180 /* MAC */
 181 int ar9170_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb);
 182 int ar9170_init_mac(struct ar9170 *ar);
 183 int ar9170_set_qos(struct ar9170 *ar);
 184 int ar9170_update_multicast(struct ar9170 *ar);
 185 int ar9170_update_frame_filter(struct ar9170 *ar);
 186 int ar9170_set_operating_mode(struct ar9170 *ar);
 187 int ar9170_set_beacon_timers(struct ar9170 *ar);
 188 int ar9170_set_hwretry_limit(struct ar9170 *ar, u32 max_retry);
 189 int ar9170_update_beacon(struct ar9170 *ar);
 190 void ar9170_new_beacon(struct work_struct *work);
 191 int ar9170_upload_key(struct ar9170 *ar, u8 id, const u8 *mac, u8 ktype,
 192                       u8 keyidx, u8 *keydata, int keylen);
 193 int ar9170_disable_key(struct ar9170 *ar, u8 id);
 194
 195 /* LEDs */
 196 #ifdef CONFIG_AR9170_LEDS
 197 int ar9170_register_leds(struct ar9170 *ar);
 198 void ar9170_unregister_leds(struct ar9170 *ar);
 199 #endif /* CONFIG_AR9170_LEDS */
 200 int ar9170_init_leds(struct ar9170 *ar);
 201 int ar9170_set_leds_state(struct ar9170 *ar, u32 led_state);
 202
 203 /* PHY / RF */
 204 int ar9170_init_phy(struct ar9170 *ar, enum ieee80211_band band);
 205 int ar9170_init_rf(struct ar9170 *ar);
 206 int ar9170_set_channel(struct ar9170 *ar, struct ieee80211_channel *channel,
 207                        enum ar9170_rf_init_mode rfi, enum ar9170_bw bw);
 208
 209 #endif /* __AR9170_H */