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 * Defintions for the Atheros Wireless LAN controller driver. 40 */ 41 #ifndef _DEV_ATH_ATHVAR_H 42 #define _DEV_ATH_ATHVAR_H 43 44 #include <linux/interrupt.h> 45 #include <linux/list.h> 46 #include <linux/wireless.h> 47 #include <linux/if_ether.h> 48 #include <linux/leds.h> 49 #include <linux/rfkill.h> 50 51 #include "ath5k.h" 52 #include "debug.h" 53 54 #include "../regd.h" 55 #include "../ath.h" 56 57 #define ATH_RXBUF 40 /* number of RX buffers */ 58 #define ATH_TXBUF 200 /* number of TX buffers */ 59 #define ATH_BCBUF 1 /* number of beacon buffers */ 60 61 struct ath5k_buf { 62 struct list_head list; 63 struct ath5k_desc *desc; /* virtual addr of desc */ 64 dma_addr_t daddr; /* physical addr of desc */ 65 struct sk_buff *skb; /* skbuff for buf */ 66 dma_addr_t skbaddr;/* physical addr of skb data */ 67 }; 68 69 /* 70 * Data transmit queue state. One of these exists for each 71 * hardware transmit queue. Packets sent to us from above 72 * are assigned to queues based on their priority. Not all 73 * devices support a complete set of hardware transmit queues. 74 * For those devices the array sc_ac2q will map multiple 75 * priorities to fewer hardware queues (typically all to one 76 * hardware queue). 77 */ 78 struct ath5k_txq { 79 unsigned int qnum; /* hardware q number */ 80 u32 *link; /* link ptr in last TX desc */ 81 struct list_head q; /* transmit queue */ 82 spinlock_t lock; /* lock on q and link */ 83 bool setup; 84 }; 85 86 #define ATH5K_LED_MAX_NAME_LEN 31 87 88 /* 89 * State for LED triggers 90 */ 91 struct ath5k_led 92 { 93 char name[ATH5K_LED_MAX_NAME_LEN + 1]; /* name of the LED in sysfs */ 94 struct ath5k_softc *sc; /* driver state */ 95 struct led_classdev led_dev; /* led classdev */ 96 }; 97 98 /* Rfkill */ 99 struct ath5k_rfkill { 100 /* GPIO PIN for rfkill */ 101 u16 gpio; 102 /* polarity of rfkill GPIO PIN */ 103 bool polarity; 104 /* RFKILL toggle tasklet */ 105 struct tasklet_struct toggleq; 106 }; 107 108 #if CHAN_DEBUG 109 #define ATH_CHAN_MAX (26+26+26+200+200) 110 #else 111 #define ATH_CHAN_MAX (14+14+14+252+20) 112 #endif 113 114 /* Software Carrier, keeps track of the driver state 115 * associated with an instance of a device */ 116 struct ath5k_softc { 117 struct pci_dev *pdev; /* for dma mapping */ 118 struct ath_common common; 119 void __iomem *iobase; /* address of the device */ 120 struct mutex lock; /* dev-level lock */ 121 struct ieee80211_tx_queue_stats tx_stats[AR5K_NUM_TX_QUEUES]; 122 struct ieee80211_low_level_stats ll_stats; 123 struct ieee80211_hw *hw; /* IEEE 802.11 common */ 124 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS]; 125 struct ieee80211_channel channels[ATH_CHAN_MAX]; 126 struct ieee80211_rate rates[IEEE80211_NUM_BANDS][AR5K_MAX_RATES]; 127 s8 rate_idx[IEEE80211_NUM_BANDS][AR5K_MAX_RATES]; 128 enum nl80211_iftype opmode; 129 struct ath5k_hw *ah; /* Atheros HW */ 130 131 struct ieee80211_supported_band *curband; 132 133 #ifdef CONFIG_ATH5K_DEBUG 134 struct ath5k_dbg_info debug; /* debug info */ 135 #endif /* CONFIG_ATH5K_DEBUG */ 136 137 struct ath5k_buf *bufptr; /* allocated buffer ptr */ 138 struct ath5k_desc *desc; /* TX/RX descriptors */ 139 dma_addr_t desc_daddr; /* DMA (physical) address */ 140 size_t desc_len; /* size of TX/RX descriptors */ 141 142 DECLARE_BITMAP(status, 5); 143 #define ATH_STAT_INVALID 0 /* disable hardware accesses */ 144 #define ATH_STAT_MRRETRY 1 /* multi-rate retry support */ 145 #define ATH_STAT_PROMISC 2 146 #define ATH_STAT_LEDSOFT 3 /* enable LED gpio status */ 147 #define ATH_STAT_STARTED 4 /* opened & irqs enabled */ 148 149 unsigned int filter_flags; /* HW flags, AR5K_RX_FILTER_* */ 150 unsigned int curmode; /* current phy mode */ 151 struct ieee80211_channel *curchan; /* current h/w channel */ 152 153 struct ieee80211_vif *vif; 154 155 enum ath5k_int imask; /* interrupt mask copy */ 156 157 DECLARE_BITMAP(keymap, AR5K_KEYCACHE_SIZE); /* key use bit map */ 158 159 u8 bssidmask[ETH_ALEN]; 160 161 unsigned int led_pin, /* GPIO pin for driving LED */ 162 led_on; /* pin setting for LED on */ 163 164 struct tasklet_struct restq; /* reset tasklet */ 165 166 unsigned int rxbufsize; /* rx size based on mtu */ 167 struct list_head rxbuf; /* receive buffer */ 168 spinlock_t rxbuflock; 169 u32 *rxlink; /* link ptr in last RX desc */ 170 struct tasklet_struct rxtq; /* rx intr tasklet */ 171 struct ath5k_led rx_led; /* rx led */ 172 173 struct list_head txbuf; /* transmit buffer */ 174 spinlock_t txbuflock; 175 unsigned int txbuf_len; /* buf count in txbuf list */ 176 struct ath5k_txq txqs[AR5K_NUM_TX_QUEUES]; /* tx queues */ 177 struct ath5k_txq *txq; /* main tx queue */ 178 struct tasklet_struct txtq; /* tx intr tasklet */ 179 struct ath5k_led tx_led; /* tx led */ 180 181 struct ath5k_rfkill rf_kill; 182 183 struct tasklet_struct calib; /* calibration tasklet */ 184 185 spinlock_t block; /* protects beacon */ 186 struct tasklet_struct beacontq; /* beacon intr tasklet */ 187 struct ath5k_buf *bbuf; /* beacon buffer */ 188 unsigned int bhalq, /* SW q for outgoing beacons */ 189 bmisscount, /* missed beacon transmits */ 190 bintval, /* beacon interval in TU */ 191 bsent; 192 unsigned int nexttbtt; /* next beacon time in TU */ 193 struct ath5k_txq *cabq; /* content after beacon */ 194 195 int power_level; /* Requested tx power in dbm */ 196 bool assoc; /* assocate state */ 197 bool enable_beacon; /* true if beacons are on */ 198 }; 199 200 #define ath5k_hw_hasbssidmask(_ah) \ 201 (ath5k_hw_get_capability(_ah, AR5K_CAP_BSSIDMASK, 0, NULL) == 0) 202 #define ath5k_hw_hasveol(_ah) \ 203 (ath5k_hw_get_capability(_ah, AR5K_CAP_VEOL, 0, NULL) == 0) 204 205 static inline struct ath_common *ath5k_hw_common(struct ath5k_hw *ah) 206 { 207 return &ah->ah_sc->common; 208 } 209 210 static inline struct ath_regulatory *ath5k_hw_regulatory(struct ath5k_hw *ah) 211 { 212 return &(ath5k_hw_common(ah)->regulatory); 213 214 } 215 216 #endif 217