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/cfg80211.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#include "../regd.h" 52 53#define PAYLOAD_MAX (AR9170_MAX_CMD_LEN/4 - 1) 54 55enum ar9170_bw { 56 AR9170_BW_20, 57 AR9170_BW_40_BELOW, 58 AR9170_BW_40_ABOVE, 59 60 __AR9170_NUM_BW, 61}; 62 63static inline enum ar9170_bw nl80211_to_ar9170(enum nl80211_channel_type type) 64{ 65 switch (type) { 66 case NL80211_CHAN_NO_HT: 67 case NL80211_CHAN_HT20: 68 return AR9170_BW_20; 69 case NL80211_CHAN_HT40MINUS: 70 return AR9170_BW_40_BELOW; 71 case NL80211_CHAN_HT40PLUS: 72 return AR9170_BW_40_ABOVE; 73 default: 74 BUG(); 75 } 76} 77 78enum ar9170_rf_init_mode { 79 AR9170_RFI_NONE, 80 AR9170_RFI_WARM, 81 AR9170_RFI_COLD, 82}; 83 84#define AR9170_MAX_RX_BUFFER_SIZE 8192 85 86#ifdef CONFIG_AR9170_LEDS 87struct ar9170; 88 89struct ar9170_led { 90 struct ar9170 *ar; 91 struct led_classdev l; 92 char name[32]; 93 unsigned int toggled; 94 bool last_state; 95 bool registered; 96}; 97 98#endif /* CONFIG_AR9170_LEDS */ 99 100enum ar9170_device_state { 101 AR9170_UNKNOWN_STATE, 102 AR9170_STOPPED, 103 AR9170_IDLE, 104 AR9170_STARTED, 105}; 106 107struct ar9170_rxstream_mpdu_merge { 108 struct ar9170_rx_head plcp; 109 bool has_plcp; 110}; 111 112struct ar9170_tx_queue_stats { 113 unsigned int len; 114 unsigned int limit; 115 unsigned int count; 116}; 117 118#define AR9170_QUEUE_TIMEOUT 64 119#define AR9170_TX_TIMEOUT 8 120#define AR9170_JANITOR_DELAY 128 121#define AR9170_TX_INVALID_RATE 0xffffffff 122 123#define AR9170_NUM_TX_LIMIT_HARD AR9170_TXQ_DEPTH 124#define AR9170_NUM_TX_LIMIT_SOFT (AR9170_TXQ_DEPTH - 10) 125 126struct ar9170 { 127 struct ieee80211_hw *hw; 128 struct ath_common common; 129 struct mutex mutex; 130 enum ar9170_device_state state; 131 bool registered; 132 unsigned long bad_hw_nagger; 133 134 int (*open)(struct ar9170 *); 135 void (*stop)(struct ar9170 *); 136 int (*tx)(struct ar9170 *, struct sk_buff *); 137 int (*exec_cmd)(struct ar9170 *, enum ar9170_cmd, u32 , 138 void *, u32 , void *); 139 void (*callback_cmd)(struct ar9170 *, u32 , void *); 140 int (*flush)(struct ar9170 *); 141 142 /* interface mode settings */ 143 struct ieee80211_vif *vif; 144 145 /* beaconing */ 146 struct sk_buff *beacon; 147 struct work_struct beacon_work; 148 bool enable_beacon; 149 150 /* cryptographic engine */ 151 u64 usedkeys; 152 bool rx_software_decryption; 153 bool disable_offload; 154 155 /* filter settings */ 156 u64 cur_mc_hash; 157 u32 cur_filter; 158 unsigned int filter_state; 159 bool sniffer_enabled; 160 161 /* PHY */ 162 struct ieee80211_channel *channel; 163 int noise[4]; 164 165 /* power calibration data */ 166 u8 power_5G_leg[4]; 167 u8 power_2G_cck[4]; 168 u8 power_2G_ofdm[4]; 169 u8 power_5G_ht20[8]; 170 u8 power_5G_ht40[8]; 171 u8 power_2G_ht20[8]; 172 u8 power_2G_ht40[8]; 173 174 u8 phy_heavy_clip; 175 176#ifdef CONFIG_AR9170_LEDS 177 struct delayed_work led_work; 178 struct ar9170_led leds[AR9170_NUM_LEDS]; 179#endif /* CONFIG_AR9170_LEDS */ 180 181 /* qos queue settings */ 182 spinlock_t tx_stats_lock; 183 struct ar9170_tx_queue_stats tx_stats[5]; 184 struct ieee80211_tx_queue_params edcf[5]; 185 186 spinlock_t cmdlock; 187 __le32 cmdbuf[PAYLOAD_MAX + 1]; 188 189 /* MAC statistics */ 190 struct ieee80211_low_level_stats stats; 191 192 /* EEPROM */ 193 struct ar9170_eeprom eeprom; 194 195 /* tx queues - as seen by hw - */ 196 struct sk_buff_head tx_pending[__AR9170_NUM_TXQ]; 197 struct sk_buff_head tx_status[__AR9170_NUM_TXQ]; 198 struct delayed_work tx_janitor; 199 200 /* rxstream mpdu merge */ 201 struct ar9170_rxstream_mpdu_merge rx_mpdu; 202 struct sk_buff *rx_failover; 203 int rx_failover_missing; 204 205 /* (cached) HW A-MPDU settings */ 206 u8 global_ampdu_density; 207 u8 global_ampdu_factor; 208}; 209 210struct ar9170_tx_info { 211 unsigned long timeout; 212}; 213 214#define IS_STARTED(a) (((struct ar9170 *)a)->state >= AR9170_STARTED) 215#define IS_ACCEPTING_CMD(a) (((struct ar9170 *)a)->state >= AR9170_IDLE) 216 217/* exported interface */ 218void *ar9170_alloc(size_t priv_size); 219int ar9170_register(struct ar9170 *ar, struct device *pdev); 220void ar9170_rx(struct ar9170 *ar, struct sk_buff *skb); 221void ar9170_unregister(struct ar9170 *ar); 222void ar9170_tx_callback(struct ar9170 *ar, struct sk_buff *skb); 223void ar9170_handle_command_response(struct ar9170 *ar, void *buf, u32 len); 224int ar9170_nag_limiter(struct ar9170 *ar); 225 226/* MAC */ 227int ar9170_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb); 228int ar9170_init_mac(struct ar9170 *ar); 229int ar9170_set_qos(struct ar9170 *ar); 230int ar9170_update_multicast(struct ar9170 *ar, const u64 mc_hast); 231int ar9170_update_frame_filter(struct ar9170 *ar, const u32 filter); 232int ar9170_set_operating_mode(struct ar9170 *ar); 233int ar9170_set_beacon_timers(struct ar9170 *ar); 234int ar9170_set_dyn_sifs_ack(struct ar9170 *ar); 235int ar9170_set_slot_time(struct ar9170 *ar); 236int ar9170_set_basic_rates(struct ar9170 *ar); 237int ar9170_set_hwretry_limit(struct ar9170 *ar, u32 max_retry); 238int ar9170_update_beacon(struct ar9170 *ar); 239void ar9170_new_beacon(struct work_struct *work); 240int ar9170_upload_key(struct ar9170 *ar, u8 id, const u8 *mac, u8 ktype, 241 u8 keyidx, u8 *keydata, int keylen); 242int ar9170_disable_key(struct ar9170 *ar, u8 id); 243 244/* LEDs */ 245#ifdef CONFIG_AR9170_LEDS 246int ar9170_register_leds(struct ar9170 *ar); 247void ar9170_unregister_leds(struct ar9170 *ar); 248#endif /* CONFIG_AR9170_LEDS */ 249int ar9170_init_leds(struct ar9170 *ar); 250int ar9170_set_leds_state(struct ar9170 *ar, u32 led_state); 251 252/* PHY / RF */ 253int ar9170_init_phy(struct ar9170 *ar, enum ieee80211_band band); 254int ar9170_init_rf(struct ar9170 *ar); 255int ar9170_set_channel(struct ar9170 *ar, struct ieee80211_channel *channel, 256 enum ar9170_rf_init_mode rfi, enum ar9170_bw bw); 257 258#endif /* __AR9170_H */ 259