drivers/net/wireless/ath5k/base.h - maze/linux - Git at Google

 /*-
  * Copyright (c) 2002-2007 Sam Leffler, Errno Consulting
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer,
  *    without modification.
  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
  *    redistribution must be conditioned upon including a substantially
  *    similar Disclaimer requirement for further binary redistribution.
  * 3. Neither the names of the above-listed copyright holders nor the names
  *    of any contributors may be used to endorse or promote products derived
  *    from this software without specific prior written permission.
  *
  * Alternatively, this software may be distributed under the terms of the
  * GNU General Public License ("GPL") version 2 as published by the Free
  * Software Foundation.
  *
  * NO WARRANTY
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
  * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  * THE POSSIBILITY OF SUCH DAMAGES.
  *
  */

 /*
  * Defintions for the Atheros Wireless LAN controller driver.
  */
 #ifndef _DEV_ATH_ATHVAR_H
 #define _DEV_ATH_ATHVAR_H

 #include <linux/interrupt.h>
 #include <linux/list.h>
 #include <linux/wireless.h>
 #include <linux/if_ether.h>

 #include "ath5k.h"
 #include "debug.h"

 #define	ATH_RXBUF	40		/* number of RX buffers */
 #define	ATH_TXBUF	200		/* number of TX buffers */
 #define ATH_BCBUF	1		/* number of beacon buffers */

 struct ath5k_buf {
 	struct list_head	list;
 	unsigned int		flags;	/* tx descriptor flags */
 	struct ath5k_desc	*desc;	/* virtual addr of desc */
 	dma_addr_t		daddr;	/* physical addr of desc */
 	struct sk_buff		*skb;	/* skbuff for buf */
 	dma_addr_t		skbaddr;/* physical addr of skb data */
 };

 /*
  * Data transmit queue state.  One of these exists for each
  * hardware transmit queue.  Packets sent to us from above
  * are assigned to queues based on their priority.  Not all
  * devices support a complete set of hardware transmit queues.
  * For those devices the array sc_ac2q will map multiple
  * priorities to fewer hardware queues (typically all to one
  * hardware queue).
  */
 struct ath5k_txq {
 	unsigned int		qnum;	/* hardware q number */
 	u32			*link;	/* link ptr in last TX desc */
 	struct list_head	q;	/* transmit queue */
 	spinlock_t		lock;	/* lock on q and link */
 	bool			setup;
 };

 #if CHAN_DEBUG
 #define ATH_CHAN_MAX	(26+26+26+200+200)
 #else
 #define ATH_CHAN_MAX	(14+14+14+252+20)
 #endif

 /* Software Carrier, keeps track of the driver state
  * associated with an instance of a device */
 struct ath5k_softc {
 	struct pci_dev		*pdev;		/* for dma mapping */
 	void __iomem		*iobase;	/* address of the device */
 	struct mutex		lock;		/* dev-level lock */
 	/* FIXME: how many does it really need? */
 	struct ieee80211_tx_queue_stats tx_stats[16];
 	struct ieee80211_low_level_stats ll_stats;
 	struct ieee80211_hw	*hw;		/* IEEE 802.11 common */
 	struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
 	struct ieee80211_channel channels[ATH_CHAN_MAX];
 	struct ieee80211_rate	rates[AR5K_MAX_RATES * IEEE80211_NUM_BANDS];
 	enum ieee80211_if_types	opmode;
 	struct ath5k_hw		*ah;		/* Atheros HW */

 	struct ieee80211_supported_band		*curband;

 	u8			a_rates;
 	u8			b_rates;
 	u8			g_rates;
 	u8			xr_rates;

 #ifdef CONFIG_ATH5K_DEBUG
 	struct ath5k_dbg_info	debug;		/* debug info */
 #endif /* CONFIG_ATH5K_DEBUG */

 	struct ath5k_buf	*bufptr;	/* allocated buffer ptr */
 	struct ath5k_desc	*desc;		/* TX/RX descriptors */
 	dma_addr_t		desc_daddr;	/* DMA (physical) address */
 	size_t			desc_len;	/* size of TX/RX descriptors */
 	u16			cachelsz;	/* cache line size */

 	DECLARE_BITMAP(status, 6);
 #define ATH_STAT_INVALID	0		/* disable hardware accesses */
 #define ATH_STAT_MRRETRY	1		/* multi-rate retry support */
 #define ATH_STAT_PROMISC	2
 #define ATH_STAT_LEDBLINKING	3		/* LED blink operation active */
 #define ATH_STAT_LEDENDBLINK	4		/* finish LED blink operation */
 #define ATH_STAT_LEDSOFT	5		/* enable LED gpio status */

 	unsigned int		filter_flags;	/* HW flags, AR5K_RX_FILTER_* */
 	unsigned int		curmode;	/* current phy mode */
 	struct ieee80211_channel *curchan;	/* current h/w channel */

 	struct ieee80211_vif *vif;

 	struct {
 		u8	rxflags;	/* radiotap rx flags */
 		u8	txflags;	/* radiotap tx flags */
 		u16	ledon;		/* softled on time */
 		u16	ledoff;		/* softled off time */
 	} hwmap[32];				/* h/w rate ix mappings */

 	enum ath5k_int		imask;		/* interrupt mask copy */

 	DECLARE_BITMAP(keymap, AR5K_KEYCACHE_SIZE); /* key use bit map */

 	u8			bssidmask[ETH_ALEN];

 	unsigned int		led_pin,	/* GPIO pin for driving LED */
 				led_on,		/* pin setting for LED on */
 				led_off;	/* off time for current blink */
 	struct timer_list	led_tim;	/* led off timer */
 	u8			led_rxrate;	/* current rx rate for LED */
 	u8			led_txrate;	/* current tx rate for LED */

 	struct tasklet_struct	restq;		/* reset tasklet */

 	unsigned int		rxbufsize;	/* rx size based on mtu */
 	struct list_head	rxbuf;		/* receive buffer */
 	spinlock_t		rxbuflock;
 	u32			*rxlink;	/* link ptr in last RX desc */
 	struct tasklet_struct	rxtq;		/* rx intr tasklet */

 	struct list_head	txbuf;		/* transmit buffer */
 	spinlock_t		txbuflock;
 	unsigned int		txbuf_len;	/* buf count in txbuf list */
 	struct ath5k_txq	txqs[2];	/* beacon and tx */

 	struct ath5k_txq	*txq;		/* beacon and tx*/
 	struct tasklet_struct	txtq;		/* tx intr tasklet */

 	struct ath5k_buf	*bbuf;		/* beacon buffer */
 	unsigned int		bhalq,		/* SW q for outgoing beacons */
 				bmisscount,	/* missed beacon transmits */
 				bintval,	/* beacon interval in TU */
 				bsent;
 	unsigned int		nexttbtt;	/* next beacon time in TU */

 	struct timer_list	calib_tim;	/* calibration timer */
 	int 			power_level;	/* Requested tx power in dbm */
 };

 #define ath5k_hw_hasbssidmask(_ah) \
 	(ath5k_hw_get_capability(_ah, AR5K_CAP_BSSIDMASK, 0, NULL) == 0)
 #define ath5k_hw_hasveol(_ah) \
 	(ath5k_hw_get_capability(_ah, AR5K_CAP_VEOL, 0, NULL) == 0)

 #endif
	/*-
	* Copyright (c) 2002-2007 Sam Leffler, Errno Consulting
	* All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer,
	* without modification.
	* 2. Redistributions in binary form must reproduce at minimum a disclaimer
	* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
	* redistribution must be conditioned upon including a substantially
	* similar Disclaimer requirement for further binary redistribution.
	* 3. Neither the names of the above-listed copyright holders nor the names
	* of any contributors may be used to endorse or promote products derived
	* from this software without specific prior written permission.
	*
	* Alternatively, this software may be distributed under the terms of the
	* GNU General Public License ("GPL") version 2 as published by the Free
	* Software Foundation.
	*
	* NO WARRANTY
	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
	* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
	* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
	* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
	* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
	* THE POSSIBILITY OF SUCH DAMAGES.
	*
	*/

	/*
	* Defintions for the Atheros Wireless LAN controller driver.
	*/
	#ifndef _DEV_ATH_ATHVAR_H
	#define _DEV_ATH_ATHVAR_H

	#include <linux/interrupt.h>
	#include <linux/list.h>
	#include <linux/wireless.h>
	#include <linux/if_ether.h>

	#include "ath5k.h"
	#include "debug.h"

	#define ATH_RXBUF 40 /* number of RX buffers */
	#define ATH_TXBUF 200 /* number of TX buffers */
	#define ATH_BCBUF 1 /* number of beacon buffers */

	struct ath5k_buf {
	struct list_head list;
	unsigned int flags; /* tx descriptor flags */
	struct ath5k_desc desc; / virtual addr of desc */
	dma_addr_t daddr; /* physical addr of desc */
	struct sk_buff skb; / skbuff for buf */
	dma_addr_t skbaddr;/* physical addr of skb data */
	};

	/*
	* Data transmit queue state. One of these exists for each
	* hardware transmit queue. Packets sent to us from above
	* are assigned to queues based on their priority. Not all
	* devices support a complete set of hardware transmit queues.
	* For those devices the array sc_ac2q will map multiple
	* priorities to fewer hardware queues (typically all to one
	* hardware queue).
	*/
	struct ath5k_txq {
	unsigned int qnum; /* hardware q number */
	u32 link; / link ptr in last TX desc */
	struct list_head q; /* transmit queue */
	spinlock_t lock; /* lock on q and link */
	bool setup;
	};

	#if CHAN_DEBUG
	#define ATH_CHAN_MAX (26+26+26+200+200)
	#else
	#define ATH_CHAN_MAX (14+14+14+252+20)
	#endif

	/* Software Carrier, keeps track of the driver state
	* associated with an instance of a device */
	struct ath5k_softc {
	struct pci_dev pdev; / for dma mapping */
	void __iomem iobase; / address of the device */
	struct mutex lock; /* dev-level lock */
	/* FIXME: how many does it really need? */
	struct ieee80211_tx_queue_stats tx_stats[16];
	struct ieee80211_low_level_stats ll_stats;
	struct ieee80211_hw hw; / IEEE 802.11 common */
	struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
	struct ieee80211_channel channels[ATH_CHAN_MAX];
	struct ieee80211_rate rates[AR5K_MAX_RATES * IEEE80211_NUM_BANDS];
	enum ieee80211_if_types opmode;
	struct ath5k_hw ah; / Atheros HW */

	struct ieee80211_supported_band *curband;

	u8 a_rates;
	u8 b_rates;
	u8 g_rates;
	u8 xr_rates;

	#ifdef CONFIG_ATH5K_DEBUG
	struct ath5k_dbg_info debug; /* debug info */
	#endif /* CONFIG_ATH5K_DEBUG */

	struct ath5k_buf bufptr; / allocated buffer ptr */
	struct ath5k_desc desc; / TX/RX descriptors */
	dma_addr_t desc_daddr; /* DMA (physical) address */
	size_t desc_len; /* size of TX/RX descriptors */
	u16 cachelsz; /* cache line size */

	DECLARE_BITMAP(status, 6);
	#define ATH_STAT_INVALID 0 /* disable hardware accesses */
	#define ATH_STAT_MRRETRY 1 /* multi-rate retry support */
	#define ATH_STAT_PROMISC 2
	#define ATH_STAT_LEDBLINKING 3 /* LED blink operation active */
	#define ATH_STAT_LEDENDBLINK 4 /* finish LED blink operation */
	#define ATH_STAT_LEDSOFT 5 /* enable LED gpio status */

	unsigned int filter_flags; /* HW flags, AR5K_RX_FILTER_* */
	unsigned int curmode; /* current phy mode */
	struct ieee80211_channel curchan; / current h/w channel */

	struct ieee80211_vif *vif;

	struct {
	u8 rxflags; /* radiotap rx flags */
	u8 txflags; /* radiotap tx flags */
	u16 ledon; /* softled on time */
	u16 ledoff; /* softled off time */
	} hwmap[32]; /* h/w rate ix mappings */

	enum ath5k_int imask; /* interrupt mask copy */

	DECLARE_BITMAP(keymap, AR5K_KEYCACHE_SIZE); /* key use bit map */

	u8 bssidmask[ETH_ALEN];

	unsigned int led_pin, /* GPIO pin for driving LED */
	led_on, /* pin setting for LED on */
	led_off; /* off time for current blink */
	struct timer_list led_tim; /* led off timer */
	u8 led_rxrate; /* current rx rate for LED */
	u8 led_txrate; /* current tx rate for LED */

	struct tasklet_struct restq; /* reset tasklet */

	unsigned int rxbufsize; /* rx size based on mtu */
	struct list_head rxbuf; /* receive buffer */
	spinlock_t rxbuflock;
	u32 rxlink; / link ptr in last RX desc */
	struct tasklet_struct rxtq; /* rx intr tasklet */

	struct list_head txbuf; /* transmit buffer */
	spinlock_t txbuflock;
	unsigned int txbuf_len; /* buf count in txbuf list */
	struct ath5k_txq txqs[2]; /* beacon and tx */

	struct ath5k_txq txq; / beacon and tx*/
	struct tasklet_struct txtq; /* tx intr tasklet */

	struct ath5k_buf bbuf; / beacon buffer */
	unsigned int bhalq, /* SW q for outgoing beacons */
	bmisscount, /* missed beacon transmits */
	bintval, /* beacon interval in TU */
	bsent;
	unsigned int nexttbtt; /* next beacon time in TU */

	struct timer_list calib_tim; /* calibration timer */
	int power_level; /* Requested tx power in dbm */
	};

	#define ath5k_hw_hasbssidmask(_ah) \
	(ath5k_hw_get_capability(_ah, AR5K_CAP_BSSIDMASK, 0, NULL) == 0)
	#define ath5k_hw_hasveol(_ah) \
	(ath5k_hw_get_capability(_ah, AR5K_CAP_VEOL, 0, NULL) == 0)

	#endif