191 lines
6.7 KiB
C
191 lines
6.7 KiB
C
/*-
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* Copyright (c) 2002-2007 Sam Leffler, Errno Consulting
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
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* redistribution must be conditioned upon including a substantially
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* similar Disclaimer requirement for further binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
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* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGES.
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*
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*/
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/*
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* Defintions for the Atheros Wireless LAN controller driver.
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*/
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#ifndef _DEV_ATH_ATHVAR_H
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#define _DEV_ATH_ATHVAR_H
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#include <linux/interrupt.h>
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#include <linux/list.h>
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#include <linux/wireless.h>
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#include <linux/if_ether.h>
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#include <linux/leds.h>
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#include "ath5k.h"
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#include "debug.h"
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#define ATH_RXBUF 40 /* number of RX buffers */
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#define ATH_TXBUF 200 /* number of TX buffers */
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#define ATH_BCBUF 1 /* number of beacon buffers */
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struct ath5k_buf {
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struct list_head list;
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unsigned int flags; /* rx descriptor flags */
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struct ath5k_desc *desc; /* virtual addr of desc */
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dma_addr_t daddr; /* physical addr of desc */
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struct sk_buff *skb; /* skbuff for buf */
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dma_addr_t skbaddr;/* physical addr of skb data */
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};
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/*
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* Data transmit queue state. One of these exists for each
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* hardware transmit queue. Packets sent to us from above
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* are assigned to queues based on their priority. Not all
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* devices support a complete set of hardware transmit queues.
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* For those devices the array sc_ac2q will map multiple
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* priorities to fewer hardware queues (typically all to one
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* hardware queue).
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*/
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struct ath5k_txq {
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unsigned int qnum; /* hardware q number */
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u32 *link; /* link ptr in last TX desc */
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struct list_head q; /* transmit queue */
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spinlock_t lock; /* lock on q and link */
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bool setup;
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};
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#define ATH5K_LED_MAX_NAME_LEN 31
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/*
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* State for LED triggers
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*/
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struct ath5k_led
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{
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char name[ATH5K_LED_MAX_NAME_LEN + 1]; /* name of the LED in sysfs */
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struct ath5k_softc *sc; /* driver state */
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struct led_classdev led_dev; /* led classdev */
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};
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#if CHAN_DEBUG
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#define ATH_CHAN_MAX (26+26+26+200+200)
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#else
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#define ATH_CHAN_MAX (14+14+14+252+20)
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#endif
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/* Software Carrier, keeps track of the driver state
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* associated with an instance of a device */
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struct ath5k_softc {
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struct pci_dev *pdev; /* for dma mapping */
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void __iomem *iobase; /* address of the device */
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struct mutex lock; /* dev-level lock */
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/* FIXME: how many does it really need? */
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struct ieee80211_tx_queue_stats tx_stats[16];
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struct ieee80211_low_level_stats ll_stats;
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struct ieee80211_hw *hw; /* IEEE 802.11 common */
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struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
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struct ieee80211_channel channels[ATH_CHAN_MAX];
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struct ieee80211_rate rates[IEEE80211_NUM_BANDS][AR5K_MAX_RATES];
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u8 rate_idx[IEEE80211_NUM_BANDS][AR5K_MAX_RATES];
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enum nl80211_iftype opmode;
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struct ath5k_hw *ah; /* Atheros HW */
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struct ieee80211_supported_band *curband;
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#ifdef CONFIG_ATH5K_DEBUG
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struct ath5k_dbg_info debug; /* debug info */
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#endif /* CONFIG_ATH5K_DEBUG */
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struct ath5k_buf *bufptr; /* allocated buffer ptr */
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struct ath5k_desc *desc; /* TX/RX descriptors */
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dma_addr_t desc_daddr; /* DMA (physical) address */
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size_t desc_len; /* size of TX/RX descriptors */
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u16 cachelsz; /* cache line size */
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DECLARE_BITMAP(status, 5);
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#define ATH_STAT_INVALID 0 /* disable hardware accesses */
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#define ATH_STAT_MRRETRY 1 /* multi-rate retry support */
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#define ATH_STAT_PROMISC 2
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#define ATH_STAT_LEDSOFT 3 /* enable LED gpio status */
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#define ATH_STAT_STARTED 4 /* opened & irqs enabled */
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unsigned int filter_flags; /* HW flags, AR5K_RX_FILTER_* */
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unsigned int curmode; /* current phy mode */
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struct ieee80211_channel *curchan; /* current h/w channel */
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struct ieee80211_vif *vif;
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enum ath5k_int imask; /* interrupt mask copy */
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DECLARE_BITMAP(keymap, AR5K_KEYCACHE_SIZE); /* key use bit map */
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u8 bssidmask[ETH_ALEN];
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unsigned int led_pin, /* GPIO pin for driving LED */
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led_on, /* pin setting for LED on */
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led_off; /* off time for current blink */
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struct tasklet_struct restq; /* reset tasklet */
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unsigned int rxbufsize; /* rx size based on mtu */
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struct list_head rxbuf; /* receive buffer */
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spinlock_t rxbuflock;
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u32 *rxlink; /* link ptr in last RX desc */
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struct tasklet_struct rxtq; /* rx intr tasklet */
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struct ath5k_led rx_led; /* rx led */
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struct list_head txbuf; /* transmit buffer */
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spinlock_t txbuflock;
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unsigned int txbuf_len; /* buf count in txbuf list */
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struct ath5k_txq txqs[2]; /* beacon and tx */
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struct ath5k_txq *txq; /* beacon and tx*/
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struct tasklet_struct txtq; /* tx intr tasklet */
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struct ath5k_led tx_led; /* tx led */
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spinlock_t block; /* protects beacon */
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struct ath5k_buf *bbuf; /* beacon buffer */
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unsigned int bhalq, /* SW q for outgoing beacons */
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bmisscount, /* missed beacon transmits */
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bintval, /* beacon interval in TU */
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bsent;
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unsigned int nexttbtt; /* next beacon time in TU */
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struct timer_list calib_tim; /* calibration timer */
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int power_level; /* Requested tx power in dbm */
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bool assoc; /* assocate state */
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};
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#define ath5k_hw_hasbssidmask(_ah) \
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(ath5k_hw_get_capability(_ah, AR5K_CAP_BSSIDMASK, 0, NULL) == 0)
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#define ath5k_hw_hasveol(_ah) \
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(ath5k_hw_get_capability(_ah, AR5K_CAP_VEOL, 0, NULL) == 0)
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#endif
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