/*- * Copyright (c) 2002-2005 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. * * $Id$ */ /* * Definitions for the Atheros Wireless LAN controller driver. */ #ifndef _DEV_ATH_ATHVAR_H #define _DEV_ATH_ATHVAR_H #include "ah.h" #include "ah_desc.h" #include "ah_os.h" #include "if_athioctl.h" #include /* XXX for WME_NUM_AC */ #include #include #include #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,15) # include #endif /* * Deduce if tasklets are available. If not then * fall back to using the immediate work queue. */ #include #ifdef DECLARE_TASKLET /* native tasklets */ #define ATH_TQ_STRUCT tasklet_struct #define ATH_INIT_TQUEUE(a,b,c) tasklet_init((a), (b), (unsigned long)(c)) #define ATH_SCHEDULE_TQUEUE(a,b) tasklet_schedule((a)) typedef unsigned long TQUEUE_ARG; #define mark_bh(a) do {} while (0) #else /* immediate work queue */ #define ATH_TQ_STRUCT tq_struct #define ATH_INIT_TQUEUE(a,b,c) INIT_TQUEUE(a,b,c) #define ATH_SCHEDULE_TQUEUE(a,b) do { \ *(b) |= queue_task((a), &tq_immediate); \ } while (0) typedef void *TQUEUE_ARG; #define tasklet_disable(t) do { (void) t; local_bh_disable(); } while (0) #define tasklet_enable(t) do { (void) t; local_bh_enable(); } while (0) #endif /* !DECLARE_TASKLET */ #include #include #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20) #define ATH_INIT_WORK(_t, _f) INIT_WORK((_t), (void (*)(void *))(_f), (_t)); #else #define ATH_INIT_WORK(_t, _f) INIT_WORK((_t), (_f)); #endif /* * Guess how the interrupt handler should work. */ #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29) #if !defined(IRQ_NONE) typedef void irqreturn_t; #define IRQ_NONE #define IRQ_HANDLED #endif /* !defined(IRQ_NONE) */ #endif /* Linux < 2.6.29 */ #ifndef SET_MODULE_OWNER #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23) #define SET_MODULE_OWNER(dev) do { \ dev->owner = THIS_MODULE; \ } while (0) #else #define SET_MODULE_OWNER(dev) do { } while (0) #endif #endif #ifndef SET_NETDEV_DEV #define SET_NETDEV_DEV(ndev, pdev) #endif /* * Deal with the sysctl handler api changing. */ #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32) #define ATH_SYSCTL_DECL(f, ctl, write, filp, buffer, lenp, ppos) \ f(ctl_table *ctl, int write, struct file *filp, \ void __user *buffer, size_t *lenp, loff_t *ppos) #define ATH_SYSCTL_PROC_DOINTVEC(ctl, write, filp, buffer, lenp, ppos) \ proc_dointvec(ctl, write, filp, buffer, lenp, ppos) #else /* Linux 2.6.32+ */ #define ATH_SYSCTL_DECL(f, ctl, write, filp, buffer, lenp, ppos) \ f(ctl_table *ctl, int write, \ void __user *buffer, size_t *lenp, loff_t *ppos) #define ATH_SYSCTL_PROC_DOINTVEC(ctl, write, filp, buffer, lenp, ppos) \ proc_dointvec(ctl, write, buffer, lenp, ppos) #endif #define ATH_TIMEOUT 1000 #define ATH_DFS_WAIT_MIN_PERIOD 60 /* DFS wait is 60 seconds, per * FCC/ETSI regulations. */ #define ATH_DFS_WAIT_SHORT_POLL_PERIOD 2 /* 2 seconds, for consecutive * waits if not done yet. */ #define ATH_DFS_AVOID_MIN_PERIOD 1800 /* 30 minutes, per FCC/ETSI * regulations */ #define ATH_DFS_TEST_RETURN_PERIOD 15 /* 15 seconds -- for mute test * only */ #define ATH_LONG_CALINTERVAL_SECS 30 /* 30 seconds between calibrations */ #define ATH_SHORT_CALINTERVAL_SECS 1 /* 1 second between calibrations */ /* * Maximum acceptable MTU * MAXFRAMEBODY - WEP - QOS - RSN/WPA: * 2312 - 8 - 2 - 12 = 2290 */ #define ATH_MAX_MTU 2290 #define ATH_MIN_MTU 32 /* number of RX buffers */ #define ATH_RXBUF 100 /* number of TX buffers */ #define ATH_TXBUF 300 /* minimum number of beacon buffers */ #define ATH_MAXVAPS_MIN 2 /* maximum number of beacon buffers */ #define ATH_MAXVAPS_MAX 64 /* default number of beacon buffers */ #define ATH_MAXVAPS_DEFAULT 4 /* number of TX buffers reserved for mgt frames */ #define ATH_TXBUF_MGT_RESERVED 20 /* maximum number of queued frames allowed per WME queue */ #define ATH_QUEUE_DROP_COUNT 150 /* * dynamic turbo specific macros. */ #define ATH_TURBO_UP_THRESH 750000 /* bytes/sec */ #define ATH_TURBO_DN_THRESH 1000000 /* bytes/sec */ #define ATH_TURBO_PERIOD_HOLD 1 /* in seconds */ /* * The only case where we see skbuff chains is due to FF aggregation in * the driver. */ #ifdef ATH_SUPERG_FF #define ATH_TXDESC 2 /* number of descriptors per buffer */ #else #define ATH_TXDESC 1 /* number of descriptors per buffer */ #endif #define ATH_TXMAXTRY 11 /* max number of transmit attempts */ /* Compress settings */ #define ATH_COMP_THRESHOLD 256 /* no compression for frames longer than this threshold */ #define ATH_COMP_PROC_NO_COMP_NO_CCS 3 #define ATH_COMP_PROC_NO_COMP_ADD_CCS 2 #define ATH_COMP_PROC_COMP_NO_OPTIAML 1 #define ATH_COMP_PROC_COMP_OPTIMAL 0 #define ATH_DEFAULT_COMP_PROC ATH_COMP_PROC_COMP_OPTIMAL #define INVALID_DECOMP_INDEX 0xFFFF #define WEP_IV_FIELD_SIZE 4 /* wep IV field size */ #define WEP_ICV_FIELD_SIZE 4 /* wep ICV field size */ #define AES_ICV_FIELD_SIZE 8 /* AES ICV field size */ #define EXT_IV_FIELD_SIZE 4 /* ext IV field size */ /* This is what the HAL uses by default for 11a+g */ #define ATH_DEFAULT_CWMIN 15 #define ATH_DEFAULT_CWMAX 1023 /* XR specific macros */ #define XR_DEFAULT_GRPPOLL_RATE_STR "0.25 1 1 3 3 6 6 20" #define GRPPOLL_RATE_STR_LEN 64 #define XR_SLOT_DELAY 30 /* in usec */ #define XR_AIFS 0 #define XR_NUM_RATES 5 #define XR_NUM_SUP_RATES 8 /* XR uplink should have same cwmin/cwmax value */ #define XR_CWMIN_CWMAX 7 #define XR_DATA_AIFS 3 #define XR_DATA_CWMIN 31 #define XR_DATA_CWMAX 1023 /* pick the threshold so that we meet most of the regulatory constraints */ #define XR_FRAGMENTATION_THRESHOLD 540 #define XR_TELEC_FRAGMENTATION_THRESHOLD 442 #define XR_MAX_GRP_POLL_PERIOD 1000 /* Maximum Group Poll Periodicity */ #define XR_DEFAULT_POLL_INTERVAL 100 #define XR_MIN_POLL_INTERVAL 30 #define XR_MAX_POLL_INTERVAL 1000 #define XR_DEFAULT_POLL_COUNT 32 #define XR_MIN_POLL_COUNT 16 #define XR_MAX_POLL_COUNT 64 #define XR_POLL_UPDATE_PERIOD 10 /* number of XR beacons */ #define XR_GRPPOLL_PERIOD_FACTOR 5 /* factor used in calculating grp poll interval */ #define XR_4MS_FRAG_THRESHOLD 128 /* fragmentation threshold for 4msec frame limit */ /* * Maximum Values in ms for group poll periodicty */ #define GRP_POLL_PERIOD_NO_XR_STA_MAX 100 #define GRP_POLL_PERIOD_XR_STA_MAX 30 enum { CCA_BG = 15, CCA_A = 4, CCA_PUREG = 4, /* pure G */ }; /* * Percentage of the configured poll periodicity */ #define GRP_POLL_PERIOD_FACTOR_XR_STA 30 /* When XR Stations associated freq is 30% higher */ #define A_MAX(a,b) ((a) > (b) ? (a) : (b)) /* * Macros to obtain the Group Poll Periodicity in various situations * * Curerntly there are the two cases * (a) When there are no XR STAs associated * (b) When there is atleast one XR STA associated */ #define GRP_POLL_PERIOD_NO_XR_STA(sc) (sc->sc_xrpollint) #define GRP_POLL_PERIOD_XR_STA(sc) \ A_MAX(GRP_POLL_PERIOD_FACTOR_XR_STA * (sc->sc_xrpollint / 100), GRP_POLL_PERIOD_XR_STA_MAX) /* * When there are no XR STAs and a valid double chirp is received then the Group Polls are * transmitted for 10 seconds from the time of the last valid double double-chirp */ #define NO_XR_STA_GRPPOLL_TX_DUR 10000 /* * The key cache is used for h/w cipher state and also for * tracking station state such as the current tx antenna. * We also setup a mapping table between key cache slot indices * and station state to short-circuit node lookups on rx. * Different parts have different size key caches. We handle * up to ATH_KEYMAX entries (could dynamically allocate state). */ #define ATH_KEYMAX 128 /* max key cache size we handle */ #define ATH_KEYBYTES (ATH_KEYMAX / NBBY) /* storage space in bytes */ /* * Convert from net80211 layer values to Ath layer values. Hopefully this will * be optimised away when the two constants are the same. */ typedef unsigned int ath_keyix_t; #define ATH_KEY(_keyix) ((_keyix == IEEE80211_KEYIX_NONE) ? HAL_TXKEYIX_INVALID : _keyix) #define ATH_MIN_FF_RATE 12000 /* min rate for ff aggregation in kbps */ #define ATH_MIN_FF_RATE 12000 /* min rate for ff aggregation in kbps */ struct ath_buf; typedef STAILQ_HEAD(, ath_buf) ath_bufhead; /* driver-specific node state */ struct ath_node { struct ieee80211_node an_node; /* base class */ u_int16_t an_decomp_index; /* decompression mask index */ u_int32_t an_avgrssi; /* average rssi over all rx frames */ u_int8_t an_prevdatarix; /* rate ix of last data frame */ u_int16_t an_minffrate; /* min rate in kbps for ff to aggregate */ struct ath_buf *an_tx_ffbuf[WME_NUM_AC]; /* ff staging area */ ath_bufhead an_uapsd_q; /* U-APSD delivery queue */ int an_uapsd_qdepth; /* U-APSD delivery queue depth */ ath_bufhead an_uapsd_overflowq; /* U-APSD overflow queue (for > MaxSp frames) */ int an_uapsd_overflowqdepth; /* U-APSD overflow queue depth */ spinlock_t an_uapsd_lock; /* U-APSD delivery queue lock */ /* variable-length rate control state follows */ }; #define ATH_NODE(_n) ((struct ath_node *)(_n)) #define SKB_AN(_skb) (ATH_NODE(SKB_NI(_skb))) #define ATH_NODE_CONST(ni) ((const struct ath_node *)(ni)) #define ATH_NODE_UAPSD_LOCK_INIT(_an) spin_lock_init(&(_an)->an_uapsd_lock) #define ATH_NODE_UAPSD_LOCK_IRQ(_an) do { \ unsigned long __an_uapsd_lockflags; \ ATH_NODE_UAPSD_LOCK_CHECK(_an); \ spin_lock_irqsave(&(_an)->an_uapsd_lock, __an_uapsd_lockflags); #define ATH_NODE_UAPSD_UNLOCK_IRQ(_an) \ ATH_NODE_UAPSD_LOCK_ASSERT(_an); \ spin_unlock_irqrestore(&(_an)->an_uapsd_lock, __an_uapsd_lockflags); \ } while (0) #define ATH_NODE_UAPSD_LOCK_IRQ_INSIDE(_an) do { \ ATH_NODE_UAPSD_LOCK_CHECK(_an); \ spin_lock(&(_an)->an_uapsd_lock); \ } while (0) #define ATH_NODE_UAPSD_UNLOCK_IRQ_INSIDE(_an) do { \ ATH_NODE_UAPSD_LOCK_ASSERT(_an); \ spin_unlock(&(_an)->an_uapsd_lock); \ } while (0) #define ATH_NODE_UAPSD_UNLOCK_IRQ_EARLY(_an) \ ATH_NODE_UAPSD_LOCK_ASSERT(_an); \ spin_unlock_irqrestore(&(_an)->an_uapsd_lock, __an_uapsd_lockflags); #if (defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)) && defined(spin_is_locked) #define ATH_NODE_UAPSD_LOCK_ASSERT(_an) \ KASSERT(spin_is_locked(&(_an)->an_uapsd_lock), ("uapsd not locked!")) #if (defined(ATH_DEBUG_SPINLOCKS)) #define ATH_NODE_UAPSD_LOCK_CHECK(_an) do { \ if (spin_is_locked(&(_an)->an_uapsd_lock)) \ printk(KERN_DEBUG "%s:%d - about to block on uapsd lock!\n", __func__, __LINE__); \ } while (0) #else /* #if (defined(ATH_DEBUG_SPINLOCKS)) */ #define ATH_NODE_UAPSD_LOCK_CHECK(_an) #endif /* #if (defined(ATH_DEBUG_SPINLOCKS)) */ #else #define ATH_NODE_UAPSD_LOCK_ASSERT(_an) #define ATH_NODE_UAPSD_LOCK_CHECK(_an) #endif #define ATH_RSSI_LPF_LEN 10 #define ATH_RSSI_DUMMY_MARKER 0x127 #define ATH_EP_MUL(x, mul) ((x) * (mul)) #define ATH_RSSI_IN(x) (ATH_EP_MUL((x), HAL_RSSI_EP_MULTIPLIER)) #define ATH_LPF_RSSI(x, y, len) \ ((x != ATH_RSSI_DUMMY_MARKER) ? (((x) * ((len) - 1) + (y)) / (len)) : (y)) #define ATH_RSSI_LPF(x, y) do { \ if ((y) >= -20) \ x = ATH_LPF_RSSI((x), ATH_RSSI_IN((y)), ATH_RSSI_LPF_LEN); \ } while (0) #define ATH_ANTENNA_DIFF 2 /* Num frames difference in * tx to flip default recv * antenna */ struct ath_buf { /* FFXXX: convert both list types to TAILQ to save a field? */ STAILQ_ENTRY(ath_buf) bf_list; #ifdef ATH_SUPERG_FF TAILQ_ENTRY(ath_buf) bf_stagelist; /* fast-frame staging list */ #endif struct ath_desc *bf_desc; /* virtual addr of desc */ struct ath_desc_status bf_dsstatus; /* tx/rx descriptor status */ dma_addr_t bf_daddr; /* physical addr of desc */ struct sk_buff *bf_skb; /* skbuff for buf */ dma_addr_t bf_skbaddr; /* physical addr of skb data - always used by one desc */ u_int32_t bf_status; /* status flags */ u_int16_t bf_flags; /* tx descriptor flags */ u_int64_t bf_tsf; int16_t bf_channoise; #ifdef ATH_SUPERG_FF /* XXX: combine this with bf_skbaddr if it ever changes to accommodate * multiple segments. */ u_int16_t bf_numdescff; /* number of descs used for FF (these are extra) */ u_int32_t bf_queueage; /* "age" of txq when this buffer placed on stageq */ dma_addr_t bf_skbaddrff[ATH_TXDESC - 1]; /* extra addrs for FF */ #endif int bf_taken_at_line; /* XXX: Want full alloc backtrace */ const char *bf_taken_at_func; }; /* The last descriptor for a buffer. * NB: This code assumes that the descriptors for a buf are allocated, * contiguously. This assumption is made elsewhere too. */ #ifdef ATH_SUPERG_FF # define ATH_BUF_LAST_DESC(_bf) ((_bf)->bf_desc + (_bf)->bf_numdescff) #else # define ATH_BUF_LAST_DESC(_bf) ((_bf)->bf_desc) #endif /* BF_XX(...) macros will blow up if _bf is NULL, but not if _bf->bf_skb is * null. */ #define ATH_BUF_CB(_bf) (((_bf)->bf_skb) ? SKB_CB((_bf)->bf_skb) : NULL) #define ATH_BUF_NI(_bf) (((_bf)->bf_skb) ? SKB_NI((_bf)->bf_skb) : NULL) #define ATH_BUF_AN(_bf) (((_bf)->bf_skb) ? SKB_AN((_bf)->bf_skb) : NULL) /* XXX: only managed for rx at the moment */ #define ATH_BUFSTATUS_RXDESC_DONE 0x00000001 /* rx descriptor processing complete, desc processed by hal */ #define ATH_BUFSTATUS_RADAR_DONE 0x00000002 /* marker to indicate a PHYERR for radar pulse has already been handled. We may receive multiple interrupts before the rx_tasklet clears the queue */ #define ATH_BUFSTATUS_RXTSTAMP 0x00000004 /* RX timestamps needs to be adjusted */ /* DMA state for tx/rx descriptors. */ struct ath_descdma { const char *dd_name; struct ath_desc *dd_desc; /* descriptors */ dma_addr_t dd_desc_paddr; /* physical addr of dd_desc */ size_t dd_desc_len; /* size of dd_desc */ unsigned int dd_ndesc; unsigned int dd_nbuf; struct ath_buf *dd_bufptr; /* associated buffers */ }; struct ath_hal; struct ath_desc; struct ath_ratectrl; struct ath_tx99; struct proc_dir_entry; /* * 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 ath_txq { u_int axq_qnum; /* hardware q number */ STAILQ_HEAD(, ath_buf) axq_q; /* transmit queue */ spinlock_t axq_lock; /* lock on q and link */ int axq_depth; /* queue depth */ u_int32_t axq_totalqueued; /* total ever queued */ u_int axq_intrcnt; /* count to determine if descriptor * should generate int on this txq. */ /* * Staging queue for frames awaiting a fast-frame pairing. */ TAILQ_HEAD(axq_headtype, ath_buf) axq_stageq; /* scratch compression buffer */ char *axq_compbuf; /* scratch comp buffer */ dma_addr_t axq_compbufp; /* scratch comp buffer (phys)*/ u_int axq_compbufsz; /* scratch comp buffer size */ }; /* driver-specific vap state */ struct ath_vap { struct ieee80211vap av_vap; /* base class */ int (*av_newstate)(struct ieee80211vap *, enum ieee80211_state, int); /* XXX beacon state */ struct ath_buf *av_bcbuf; /* beacon buffer */ struct ieee80211_beacon_offsets av_boff;/* dynamic update state */ int av_bslot; /* beacon slot index */ struct ath_txq av_mcastq; /* multicast transmit queue */ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15) atomic_t av_beacon_alloc; /* set to 1 when the next beacon needs to be recomputed */ #else unsigned long av_beacon_alloc; #endif }; #define ATH_VAP(_v) ((struct ath_vap *)(_v)) #define ATH_BEACON_AIFS_DEFAULT 0 /* Default aifs for ap beacon q */ #define ATH_BEACON_CWMIN_DEFAULT 0 /* Default cwmin for ap beacon q */ #define ATH_BEACON_CWMAX_DEFAULT 0 /* Default cwmax for ap beacon q */ #define ATH_TXQ_INTR_PERIOD 5 /* axq_intrcnt period for intr gen */ #define ATH_TXQ_LOCK_INIT(_tq) spin_lock_init(&(_tq)->axq_lock) #define ATH_TXQ_LOCK_DESTROY(_tq) #define ATH_TXQ_LOCK_IRQ(_tq) do { \ unsigned long __axq_lockflags; \ ATH_TXQ_LOCK_CHECK(_tq); \ spin_lock_irqsave(&(_tq)->axq_lock, __axq_lockflags); #define ATH_TXQ_UNLOCK_IRQ(_tq) \ ATH_TXQ_LOCK_ASSERT(_tq); \ spin_unlock_irqrestore(&(_tq)->axq_lock, __axq_lockflags); \ } while (0) #define ATH_TXQ_UNLOCK_IRQ_EARLY(_tq) \ ATH_TXQ_LOCK_ASSERT(_tq); \ spin_unlock_irqrestore(&(_tq)->axq_lock, __axq_lockflags); #define ATH_TXQ_LOCK_IRQ_INSIDE(_tq) do { \ ATH_TXQ_LOCK_CHECK(_tq); \ spin_lock(&(_tq)->axq_lock); \ } while (0) #define ATH_TXQ_UNLOCK_IRQ_INSIDE(_tq) do { \ ATH_TXQ_LOCK_ASSERT(_tq); \ spin_unlock(&(_tq)->axq_lock); \ } while (0) #if (defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)) && defined(spin_is_locked) #define ATH_TXQ_LOCK_ASSERT(_tq) \ KASSERT(spin_is_locked(&(_tq)->axq_lock), ("txq not locked!")) #if (defined(ATH_DEBUG_SPINLOCKS)) #define ATH_TXQ_LOCK_CHECK(_tq) do { \ if (spin_is_locked(&(_tq)->axq_lock)) \ printk(KERN_DEBUG "%s:%d - about to block on txq lock!\n", __func__, __LINE__); \ } while (0) #else /* #if (defined(ATH_DEBUG_SPINLOCKS)) */ #define ATH_TXQ_LOCK_CHECK(_tq) #endif /* #if (defined(ATH_DEBUG_SPINLOCKS)) */ #else #define ATH_TXQ_LOCK_ASSERT(_tq) #define ATH_TXQ_LOCK_CHECK(_tq) #endif #define ATH_TXQ_LAST(_txq) \ STAILQ_LAST(&(_txq)->axq_q, ath_buf, bf_list) static __inline struct ath_desc *ath_txq_last_desc(struct ath_txq *txq) { struct ath_buf *tbf = ATH_TXQ_LAST(txq); return tbf ? ATH_BUF_LAST_DESC(tbf) : NULL; } #define ATH_TXQ_INSERT_TAIL(_tq, _elm, _field) do { \ STAILQ_INSERT_TAIL(&(_tq)->axq_q, (_elm), _field); \ (_tq)->axq_depth++; \ (_tq)->axq_totalqueued++; \ } while (0) #define ATH_TXQ_REMOVE_HEAD(_tq, _field) do { \ STAILQ_REMOVE_HEAD(&(_tq)->axq_q, _field); \ --(_tq)->axq_depth; \ } while (0) /* Concat. buffers from one queue to other. */ #define ATH_TXQ_MOVE_Q(_tqs,_tqd) do { \ (_tqd)->axq_depth += (_tqs)->axq_depth; \ (_tqd)->axq_totalqueued += (_tqs)->axq_totalqueued; \ ATH_TXQ_LINK_DESC((_tqd), STAILQ_FIRST(&(_tqs)->axq_q)); \ STAILQ_CONCAT(&(_tqd)->axq_q, &(_tqs)->axq_q); \ (_tqs)->axq_depth = 0; \ (_tqs)->axq_totalqueued = 0; \ } while (0) #define ATH_TXQ_LINK_DESC(_txq, _bf) \ ATH_STQ_LINK_DESC(&(_txq)->axq_q, (_bf)) /* NB: This macro's behaviour is dependent upon it being called *before* _bf is * inserted into _stq. */ #define ATH_STQ_LINK_DESC(_stq, _bf) do { \ if (STAILQ_FIRST((_stq))) \ ATH_BUF_LAST_DESC( \ STAILQ_LAST((_stq), ath_buf, bf_list) \ )->ds_link = \ ath_ds_link_swap((_bf)->bf_daddr); \ } while (0) #define BSTUCK_THRESH 10 /* # of stuck beacons before resetting NB: this is a guess*/ struct ath_rp { struct list_head list; u_int64_t rp_tsf; u_int8_t rp_rssi; u_int8_t rp_width; int rp_index; int rp_allocated; int rp_analyzed; }; struct ath_softc { struct ieee80211com sc_ic; /* NB: must be first */ struct net_device *sc_dev; void __iomem *sc_iobase; /* address of the device */ struct semaphore sc_lock; /* dev-level lock */ struct net_device_stats sc_devstats; /* device statistics */ struct ath_stats sc_stats; /* private statistics */ int devid; int sc_debug; int sc_default_ieee80211_debug; /* default debug flags for new VAPs */ int (*sc_recv_mgmt)(struct ieee80211vap *, struct ieee80211_node *, struct sk_buff *, int, int, u_int64_t); void (*sc_node_cleanup)(struct ieee80211_node *); void (*sc_node_free)(struct ieee80211_node *); void *sc_bdev; /* associated bus device */ struct ath_hal *sc_ah; /* Atheros HAL */ spinlock_t sc_hal_lock; /* hardware access lock */ struct ath_ratectrl *sc_rc; /* tx rate control support */ struct ath_tx99 *sc_tx99; /* tx99 support */ void (*sc_setdefantenna)(struct ath_softc *, u_int); unsigned int sc_invalid:1; /* being detached */ unsigned int sc_mrretry:1; /* multi-rate retry support */ unsigned int sc_softled:1; /* enable LED gpio status */ unsigned int sc_splitmic:1; /* split TKIP MIC keys */ unsigned int sc_needmib:1; /* enable MIB stats intr */ unsigned int sc_hasdiversity:1; /* rx diversity available */ unsigned int sc_diversity:1; /* enable rx diversity */ unsigned int sc_olddiversity:1; /* diversity setting before XR enable */ unsigned int sc_hasveol:1; /* tx VEOL support */ unsigned int sc_hastpc:1; /* per-packet TPC support */ unsigned int sc_dturbo:1; /* dynamic turbo capable */ unsigned int sc_dturbo_switch:1; /* turbo switch mode*/ unsigned int sc_dturbo_hold:1; /* dynamic turbo hold state */ unsigned int sc_rate_recn_state:1; /* dynamic turbo state recmded by ratectrl */ unsigned int sc_ignore_ar:1; /* ignore AR during transition */ unsigned int sc_ledstate:1; /* LED on/off state */ unsigned int sc_blinking:1; /* LED blink operation active */ unsigned int sc_beacons:1; /* beacons running */ unsigned int sc_hasbmask:1; /* bssid mask support */ unsigned int sc_mcastkey:1; /* mcast key cache search */ unsigned int sc_hastsfadd:1; /* tsf adjust support */ unsigned int sc_scanning:1; /* scanning active */ unsigned int sc_nostabeacons:1; /* no beacons for station */ unsigned int sc_xrgrppoll:1; /* xr group polls are active */ unsigned int sc_syncbeacon:1; /* sync/resync beacon timers */ unsigned int sc_hasclrkey:1; /* CLR key supported */ /* sc_stagbeacons : If set and several VAPs need to send beacons, * this flag means that beacons transmission is evenly distributed * over time. If unset, it means that beacons for all VAPs are sent * at the same time. For instance, with a common beacon interval of * 100 TU and 2 VAPs, 1 beacon is sent every 50 TU (staggered mode) * or 2 beacons are sent every 100 TU (bursted mode) depending on * this flag */ unsigned int sc_stagbeacons:1; /* use staggered beacons */ unsigned int sc_dfswait:1; /* waiting on channel for radar detect */ unsigned int sc_ackrate:1; /* send acks at high bitrate */ unsigned int sc_hasintmit:1; /* Interference mitigation */ unsigned int sc_useintmit:1; /* Interference mitigation enabled? */ unsigned int sc_txcont:1; /* Is continuous transmit enabled? */ unsigned int sc_dfs_testmode:1; /* IF this is on, AP vaps will stay in * 'channel availability check' indefinitely, * reporting radar and interference detections. */ unsigned int sc_dmasize_stomp:1; /* Whether to stomp on DMA size. */ unsigned int sc_txcont_power; /* Continuous transmit power in 0.5dBm units */ unsigned int sc_txcont_rate; /* Continuous transmit rate in Mbps */ /* rate tables */ const HAL_RATE_TABLE *sc_rates[IEEE80211_MODE_MAX]; const HAL_RATE_TABLE *sc_currates; /* current rate table */ const HAL_RATE_TABLE *sc_xr_rates; /* XR rate table */ const HAL_RATE_TABLE *sc_half_rates; /* half rate table */ const HAL_RATE_TABLE *sc_quarter_rates; /* quarter rate table */ HAL_OPMODE sc_opmode; /* current hal operating mode */ enum ieee80211_phymode sc_curmode; /* current phy mode */ u_int16_t sc_curtxpow; /* current tx power limit */ u_int16_t sc_curaid; /* current association id */ HAL_CHANNEL sc_curchan; /* current h/w channel */ u_int8_t sc_curbssid[IEEE80211_ADDR_LEN]; u_int8_t sc_rixmap[256]; /* IEEE to h/w rate table ix */ struct { u_int8_t ieeerate; /* IEEE rate */ u_int8_t flags; /* radiotap flags */ u_int16_t ledon; /* softled on time */ u_int16_t ledoff; /* softled off time */ } sc_hwmap[32]; /* h/w rate ix mappings */ u_int8_t sc_minrateix; /* min h/w rate index */ u_int8_t sc_protrix; /* protection rate index */ u_int8_t sc_mcastantenna; /* Multicast antenna number */ u_int8_t sc_txantenna; /* data tx antenna (fixed or auto) */ u_int8_t sc_rxantenna; /* current default antenna */ u_int8_t sc_numrxotherant; /* RXs on non-default antenna */ u_int16_t sc_nvaps; /* # of active virtual APs */ u_int8_t sc_nstavaps; /* # of active station VAPs */ u_int8_t sc_nmonvaps; /* # of monitor VAPs */ u_int8_t sc_nbcnvaps; /* # of vaps sending beacons */ u_int sc_fftxqmin; /* aggregation threshold */ HAL_INT sc_imask; /* interrupt mask copy */ u_int sc_keymax; /* size of key cache */ u_int8_t sc_keymap[ATH_KEYBYTES]; /* key use bit map */ struct ieee80211_node *sc_keyixmap[ATH_KEYMAX];/* key ix->node map */ u_int8_t sc_bssidmask[IEEE80211_ADDR_LEN]; u_int sc_ledpin; /* GPIO pin for driving LED */ u_int sc_ledon; /* pin setting for LED on */ u_int sc_ledidle; /* idle polling interval */ unsigned long sc_ledevent; /* time of last LED event */ u_int8_t sc_rxrate; /* current rx rate for LED */ u_int8_t sc_txrate; /* current tx rate for LED */ u_int16_t sc_ledoff; /* off time for current blink */ struct timer_list sc_ledtimer; /* led off timer */ struct ATH_TQ_STRUCT sc_fataltq; /* fatal error intr tasklet */ int sc_rxbufsize; /* rx size based on mtu */ struct ath_descdma sc_rxdma; /* RX descriptors */ ath_bufhead sc_rxbuf; /* receive buffer */ struct ath_buf *sc_rxbufcur; /* current rx buffer */ u_int32_t *sc_rxlink; /* link ptr in last RX desc */ spinlock_t sc_rxbuflock; struct ATH_TQ_STRUCT sc_rxtq; /* rx intr tasklet */ struct ATH_TQ_STRUCT sc_rxorntq; /* rxorn intr tasklet */ u_int16_t sc_cachelsz; /* cache line size */ struct ath_descdma sc_txdma; /* TX descriptors */ ath_bufhead sc_txbuf; /* TX buffers pool */ atomic_t sc_txbuf_counter; /* number of available TX * buffers */ spinlock_t sc_txbuflock; /* txbuf lock */ u_int sc_txqsetup; /* h/w queues setup */ u_int sc_txintrperiod; /* tx interrupt batching */ struct ath_txq sc_txq[HAL_NUM_TX_QUEUES]; struct ath_txq *sc_ac2q[WME_NUM_AC]; /* WME AC -> h/w qnum */ struct ATH_TQ_STRUCT sc_txtq; /* tx intr tasklet */ u_int8_t sc_grppoll_str[GRPPOLL_RATE_STR_LEN]; struct ath_descdma sc_bdma; /* beacon descriptors */ ath_bufhead sc_bbuf; /* beacon buffers */ spinlock_t sc_bbuflock; /* beacon buffers lock */ u_int sc_bhalq; /* HAL q for outgoing beacons */ u_int sc_bmisscount; /* missed beacon transmits */ u_int32_t sc_ant_tx[8]; /* recent tx frames/antenna */ struct ath_txq *sc_cabq; /* tx q for cab frames */ struct ath_txq sc_grpplq; /* tx q for XR group polls */ struct ath_txq *sc_xrtxq; /* tx q for XR data */ struct ath_descdma sc_grppolldma; /* TX descriptors for grppoll */ ath_bufhead sc_grppollbuf; /* transmit buffers for grouppoll */ spinlock_t sc_grppollbuflock; /* grouppoll lock */ u_int16_t sc_xrpollint; /* xr poll interval */ u_int16_t sc_xrpollcount; /* xr poll count */ struct ath_txq *sc_uapsdq; /* tx q for uapsd */ struct ATH_TQ_STRUCT sc_bmisstq; /* bmiss intr tasklet */ struct ATH_TQ_STRUCT sc_bstucktq; /* beacon stuck intr tasklet */ enum { OK, /* no change needed */ UPDATE, /* update pending */ COMMIT /* beacon sent, commit change */ } sc_updateslot; /* slot time update fsm */ int sc_slotupdate; /* slot to next advance fsm */ struct ieee80211vap **sc_bslot; /* beacon xmit slots */ int sc_bnext; /* next slot for beacon xmit */ int sc_beacon_cal; /* use beacon timer for calibration */ long unsigned int sc_calinterval_sec; /* current interval for calibration (in seconds) */ unsigned long sc_lastcal; /* last time the calibration was performed */ struct timer_list sc_cal_ch; /* calibration timer */ HAL_NODE_STATS sc_halstats; /* station-mode rssi stats */ struct ctl_table_header *sc_sysctl_header; struct ctl_table *sc_sysctls; struct timer_list sc_mib_enable; #ifdef ATH_SUPERG_DYNTURBO struct timer_list sc_dturbo_switch_mode;/* AP scan timer */ u_int32_t sc_dturbo_tcount; /* beacon intval count */ u_int32_t sc_dturbo_hold_max; /* hold count before switching to base*/ u_int16_t sc_dturbo_hold_count; /* hold count before switching to base*/ u_int16_t sc_dturbo_turbo_tmin; /* min turbo count */ u_int32_t sc_dturbo_bytes; /* bandwidth stats */ u_int32_t sc_dturbo_base_tmin; /* min time in base */ u_int32_t sc_dturbo_turbo_tmax; /* max time in turbo */ u_int32_t sc_dturbo_bw_base; /* bandwidth threshold */ u_int32_t sc_dturbo_bw_turbo; /* bandwidth threshold */ #endif u_int sc_slottimeconf; /* manual override for slottime */ u_int sc_acktimeoutconf; /* manual override for ack timeout */ u_int sc_ctstimeoutconf; /* manual override for cts timeout */ struct timer_list sc_dfs_excl_timer; /* mark expiration timer task */ struct timer_list sc_dfs_cac_timer; /* dfs wait timer */ u_int32_t sc_dfs_cac_period; /* DFS wait time before accessing a * channel (in seconds). FCC * requires 60s. */ u_int32_t sc_dfs_excl_period; /* DFS channel non-occupancy limit * after radar is detected (in seconds). * FCC requires 30m. */ u_int64_t sc_rp_lasttsf; /* TSF at last detected radar pulse */ struct ath_rp *sc_rp; /* radar pulse circular array */ struct list_head sc_rp_list; int sc_rp_num; int sc_rp_min; HAL_BOOL (*sc_rp_analyze)(struct ath_softc *sc); struct ATH_TQ_STRUCT sc_rp_tq; int sc_rp_ignored; /* if set, we ignored all * received pulses */ int sc_radar_ignored; /* if set, we ignored all * detected radars */ u_int32_t sc_nexttbtt; /* TBTT following the next SWBA, updated only * by ath_beacon_config() to avoid race * conditions */ u_int64_t sc_last_tsf; }; typedef void (*ath_callback) (struct ath_softc *); #define ATH_TXQ_SETUP(sc, i) ((sc)->sc_txqsetup & (1 << i)) #define ATH_TXBUF_LOCK_INIT(_sc) spin_lock_init(&(_sc)->sc_txbuflock) #define ATH_TXBUF_LOCK_DESTROY(_sc) #define ATH_TXBUF_LOCK_IRQ(_sc) do { \ unsigned long __txbuflockflags; \ ATH_TXBUF_LOCK_CHECK(_sc); \ spin_lock_irqsave(&(_sc)->sc_txbuflock, __txbuflockflags); #define ATH_TXBUF_UNLOCK_IRQ(_sc) \ ATH_TXBUF_LOCK_ASSERT(_sc); \ spin_unlock_irqrestore(&(_sc)->sc_txbuflock, __txbuflockflags); \ } while (0) #define ATH_TXBUF_UNLOCK_IRQ_EARLY(_sc) \ ATH_TXBUF_LOCK_ASSERT(_sc); \ spin_unlock_irqrestore(&(_sc)->sc_txbuflock, __txbuflockflags); #if (defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)) && defined(spin_is_locked) #define ATH_TXBUF_LOCK_ASSERT(_sc) \ KASSERT(spin_is_locked(&(_sc)->sc_txbuflock), ("txbuf not locked!")) #if (defined(ATH_DEBUG_SPINLOCKS)) #define ATH_TXBUF_LOCK_CHECK(_sc) do { \ if (spin_is_locked(&(_sc)->sc_txbuflock)) \ printk(KERN_DEBUG "%s:%d - about to block on txbuf lock!\n", __func__, __LINE__); \ } while (0) #else /* #if (defined(ATH_DEBUG_SPINLOCKS)) */ #define ATH_TXBUF_LOCK_CHECK(_sc) #endif /* #if (defined(ATH_DEBUG_SPINLOCKS)) */ #else #define ATH_TXBUF_LOCK_ASSERT(_sc) #define ATH_TXBUF_LOCK_CHECK(_sc) #endif #define ATH_RXBUF_LOCK_INIT(_sc) spin_lock_init(&(_sc)->sc_rxbuflock) #define ATH_RXBUF_LOCK_DESTROY(_sc) #define ATH_RXBUF_LOCK_IRQ(_sc) do { \ unsigned long __rxbuflockflags; \ ATH_RXBUF_LOCK_CHECK(_sc); \ spin_lock_irqsave(&(_sc)->sc_rxbuflock, __rxbuflockflags); #define ATH_RXBUF_UNLOCK_IRQ(_sc) \ ATH_RXBUF_LOCK_ASSERT(_sc); \ spin_unlock_irqrestore(&(_sc)->sc_rxbuflock, __rxbuflockflags); \ } while (0) #define ATH_RXBUF_UNLOCK_IRQ_EARLY(_sc) \ ATH_RXBUF_LOCK_ASSERT(_sc); \ spin_unlock_irqrestore(&(_sc)->sc_rxbuflock, __rxbuflockflags); #if (defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)) && defined(spin_is_locked) #define ATH_RXBUF_LOCK_ASSERT(_sc) \ KASSERT(spin_is_locked(&(_sc)->sc_rxbuflock), ("rxbuf not locked!")) #if (defined(ATH_DEBUG_SPINLOCKS)) #define ATH_RXBUF_LOCK_CHECK(_sc) do { \ if (spin_is_locked(&(_sc)->sc_rxbuflock)) \ printk(KERN_DEBUG "%s:%d - about to block on rxbuf lock!\n", __func__, __LINE__); \ } while (0) #else /* #if (defined(ATH_DEBUG_SPINLOCKS)) */ #define ATH_RXBUF_LOCK_CHECK(_sc) #endif /* #if (defined(ATH_DEBUG_SPINLOCKS)) */ #else #define ATH_RXBUF_LOCK_ASSERT(_sc) #define ATH_RXBUF_LOCK_CHECK(_sc) #endif #define ATH_BBUF_LOCK_INIT(_sc) spin_lock_init(&(_sc)->sc_bbuflock) #define ATH_BBUF_LOCK_DESTROY(_sc) #define ATH_BBUF_LOCK_IRQ(_sc) do { \ unsigned long __bbuflockflags; \ ATH_BBUF_LOCK_CHECK(_sc); \ spin_lock_irqsave(&(_sc)->sc_bbuflock, __bbuflockflags); #define ATH_BBUF_UNLOCK_IRQ(_sc) \ ATH_BBUF_LOCK_ASSERT(_sc); \ spin_unlock_irqrestore(&(_sc)->sc_bbuflock, __bbuflockflags); \ } while (0) #define ATH_BBUF_UNLOCK_IRQ_EARLY(_sc) \ ATH_BBUF_LOCK_ASSERT(_sc); \ spin_unlock_irqrestore(&(_sc)->sc_bbuflock, __bbuflockflags); #if (defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)) && defined(spin_is_locked) #define ATH_BBUF_LOCK_ASSERT(_sc) \ KASSERT(spin_is_locked(&(_sc)->sc_bbuflock), ("bbuf not locked!")) #if (defined(ATH_DEBUG_SPINLOCKS)) #define ATH_BBUF_LOCK_CHECK(_sc) do { \ if (spin_is_locked(&(_sc)->sc_bbuflock)) \ printk(KERN_DEBUG "%s:%d - about to block on bbuf lock!\n", __func__, __LINE__); \ } while (0) #else /* #if (defined(ATH_DEBUG_SPINLOCKS)) */ #define ATH_BBUF_LOCK_CHECK(_sc) #endif /* #if (defined(ATH_DEBUG_SPINLOCKS)) */ #else #define ATH_BBUF_LOCK_ASSERT(_sc) #define ATH_BBUF_LOCK_CHECK(_sc) #endif #define ATH_GBUF_LOCK_INIT(_sc) spin_lock_init(&(_sc)->sc_grppollbuflock) #define ATH_GBUF_LOCK_DESTROY(_sc) #define ATH_GBUF_LOCK_IRQ(_sc) do { \ unsigned long __grppollbuflockflags; \ ATH_GBUF_LOCK_CHECK(_sc); \ spin_lock_irqsave(&(_sc)->sc_grppollbuflock, __grppollbuflockflags); #define ATH_GBUF_UNLOCK_IRQ(_sc) \ ATH_GBUF_LOCK_ASSERT(_sc); \ spin_unlock_irqrestore(&(_sc)->sc_grppollbuflock, __grppollbuflockflags); \ } while (0) #define ATH_GBUF_UNLOCK_IRQ_EARLY(_sc) \ ATH_GBUF_LOCK_ASSERT(_sc); \ spin_unlock_irqrestore(&(_sc)->sc_grppollbuflock, __grppollbuflockflags); #if (defined(CONFIG_SMP) || defined(CONFIG_DEBUG_SPINLOCK)) && defined(spin_is_locked) #define ATH_GBUF_LOCK_ASSERT(_sc) \ KASSERT(spin_is_locked(&(_sc)->sc_grppollbuflock), ("grppollbuf not locked!")) #if (defined(ATH_DEBUG_SPINLOCKS)) #define ATH_GBUF_LOCK_CHECK(_sc) do { \ if (spin_is_locked(&(_sc)->sc_grppollbuflock)) \ printk(KERN_DEBUG "%s:%d - about to block on grppollbuf lock!\n", __func__, __LINE__); \ } while (0) #else /* #if (defined(ATH_DEBUG_SPINLOCKS)) */ #define ATH_GBUF_LOCK_CHECK(_sc) #endif /* #if (defined(ATH_DEBUG_SPINLOCKS)) */ #else #define ATH_GBUF_LOCK_ASSERT(_sc) #define ATH_GBUF_LOCK_CHECK(_sc) #endif #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) #include #else #include #endif /* Protects the device from concurrent accesses */ #define ATH_LOCK_INIT(_sc) sema_init(&(_sc)->sc_lock, 1) #define ATH_LOCK_DESTROY(_sc) #define ATH_LOCK(_sc) down(&(_sc)->sc_lock) #define ATH_UNLOCK(_sc) up(&(_sc)->sc_lock) int ath_attach(u_int16_t, struct net_device *, HAL_BUS_TAG); int ath_detach(struct net_device *); void ath_resume(struct net_device *); void ath_suspend(struct net_device *); #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19) irqreturn_t ath_intr(int, void *); #else irqreturn_t ath_intr(int, void *, struct pt_regs *); #endif int ath_ioctl_ethtool(struct ath_softc *, int, void __user *); void bus_read_cachesize(struct ath_softc *, u_int8_t *); void ath_sysctl_register(void); void ath_sysctl_unregister(void); #define DEV_NAME(_d) \ ((NULL == _d || NULL == _d->name || 0 == strncmp(_d->name, "wifi%d", 6)) ? \ "MadWifi" : \ _d->name) #define VAP_DEV_NAME(_v) \ ((NULL == _v) ? \ "MadWifi" : \ DEV_NAME(_v->iv_dev)) #define SC_DEV_NAME(_sc) \ ((NULL == _sc) ? \ "MadWifi" : \ DEV_NAME(_sc->sc_dev)) #define VAP_IC_DEV_NAME(_v) \ ((NULL == _v || NULL == _v->iv_ic) ? \ "MadWifi" : \ DEV_NAME(_v->iv_ic->ic_dev)) #endif /* _DEV_ATH_ATHVAR_H */