/* * Copyright (c) 2008-2011 Atheros Communications Inc. * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #ifndef ATH9K_H #define ATH9K_H #include #include #include #include #include #include "debug.h" #include "common.h" #include "mci.h" #include "dfs.h" /* * Header for the ath9k.ko driver core *only* -- hw code nor any other driver * should rely on this file or its contents. */ struct ath_node; /* Macro to expand scalars to 64-bit objects */ #define ito64(x) (sizeof(x) == 1) ? \ (((unsigned long long int)(x)) & (0xff)) : \ (sizeof(x) == 2) ? \ (((unsigned long long int)(x)) & 0xffff) : \ ((sizeof(x) == 4) ? \ (((unsigned long long int)(x)) & 0xffffffff) : \ (unsigned long long int)(x)) /* increment with wrap-around */ #define INCR(_l, _sz) do { \ (_l)++; \ (_l) &= ((_sz) - 1); \ } while (0) /* decrement with wrap-around */ #define DECR(_l, _sz) do { \ (_l)--; \ (_l) &= ((_sz) - 1); \ } while (0) #define TSF_TO_TU(_h,_l) \ ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10)) #define ATH_TXQ_SETUP(sc, i) ((sc)->tx.txqsetup & (1<bf_lastbf = NULL; \ (_bf)->bf_next = NULL; \ memset(&((_bf)->bf_state), 0, \ sizeof(struct ath_buf_state)); \ } while (0) /** * enum buffer_type - Buffer type flags * * @BUF_AMPDU: This buffer is an ampdu, as part of an aggregate (during TX) * @BUF_AGGR: Indicates whether the buffer can be aggregated * (used in aggregation scheduling) */ enum buffer_type { BUF_AMPDU = BIT(0), BUF_AGGR = BIT(1), }; #define bf_isampdu(bf) (bf->bf_state.bf_type & BUF_AMPDU) #define bf_isaggr(bf) (bf->bf_state.bf_type & BUF_AGGR) #define ATH_TXSTATUS_RING_SIZE 512 #define DS2PHYS(_dd, _ds) \ ((_dd)->dd_desc_paddr + ((caddr_t)(_ds) - (caddr_t)(_dd)->dd_desc)) #define ATH_DESC_4KB_BOUND_CHECK(_daddr) ((((_daddr) & 0xFFF) > 0xF7F) ? 1 : 0) #define ATH_DESC_4KB_BOUND_NUM_SKIPPED(_len) ((_len) / 4096) struct ath_descdma { void *dd_desc; dma_addr_t dd_desc_paddr; u32 dd_desc_len; }; int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd, struct list_head *head, const char *name, int nbuf, int ndesc, bool is_tx); /***********/ /* RX / TX */ /***********/ #define ATH_RXBUF 512 #define ATH_TXBUF 512 #define ATH_TXBUF_RESERVE 5 #define ATH_MAX_QDEPTH (ATH_TXBUF / 4 - ATH_TXBUF_RESERVE) #define ATH_TXMAXTRY 13 #define TID_TO_WME_AC(_tid) \ ((((_tid) == 0) || ((_tid) == 3)) ? IEEE80211_AC_BE : \ (((_tid) == 1) || ((_tid) == 2)) ? IEEE80211_AC_BK : \ (((_tid) == 4) || ((_tid) == 5)) ? IEEE80211_AC_VI : \ IEEE80211_AC_VO) #define ATH_AGGR_DELIM_SZ 4 #define ATH_AGGR_MINPLEN 256 /* in bytes, minimum packet length */ /* number of delimiters for encryption padding */ #define ATH_AGGR_ENCRYPTDELIM 10 /* minimum h/w qdepth to be sustained to maximize aggregation */ #define ATH_AGGR_MIN_QDEPTH 2 /* minimum h/w qdepth for non-aggregated traffic */ #define ATH_NON_AGGR_MIN_QDEPTH 8 #define IEEE80211_SEQ_SEQ_SHIFT 4 #define IEEE80211_SEQ_MAX 4096 #define IEEE80211_WEP_IVLEN 3 #define IEEE80211_WEP_KIDLEN 1 #define IEEE80211_WEP_CRCLEN 4 #define IEEE80211_MAX_MPDU_LEN (3840 + FCS_LEN + \ (IEEE80211_WEP_IVLEN + \ IEEE80211_WEP_KIDLEN + \ IEEE80211_WEP_CRCLEN)) /* return whether a bit at index _n in bitmap _bm is set * _sz is the size of the bitmap */ #define ATH_BA_ISSET(_bm, _n) (((_n) < (WME_BA_BMP_SIZE)) && \ ((_bm)[(_n) >> 5] & (1 << ((_n) & 31)))) /* return block-ack bitmap index given sequence and starting sequence */ #define ATH_BA_INDEX(_st, _seq) (((_seq) - (_st)) & (IEEE80211_SEQ_MAX - 1)) /* return the seqno for _start + _offset */ #define ATH_BA_INDEX2SEQ(_seq, _offset) (((_seq) + (_offset)) & (IEEE80211_SEQ_MAX - 1)) /* returns delimiter padding required given the packet length */ #define ATH_AGGR_GET_NDELIM(_len) \ (((_len) >= ATH_AGGR_MINPLEN) ? 0 : \ DIV_ROUND_UP(ATH_AGGR_MINPLEN - (_len), ATH_AGGR_DELIM_SZ)) #define BAW_WITHIN(_start, _bawsz, _seqno) \ ((((_seqno) - (_start)) & 4095) < (_bawsz)) #define ATH_AN_2_TID(_an, _tidno) (&(_an)->tid[(_tidno)]) #define IS_CCK_RATE(rate) ((rate >= 0x18) && (rate <= 0x1e)) #define ATH_TX_COMPLETE_POLL_INT 1000 #define ATH_TXFIFO_DEPTH 8 struct ath_txq { int mac80211_qnum; /* mac80211 queue number, -1 means not mac80211 Q */ u32 axq_qnum; /* ath9k hardware queue number */ void *axq_link; struct list_head axq_q; spinlock_t axq_lock; u32 axq_depth; u32 axq_ampdu_depth; bool stopped; bool axq_tx_inprogress; struct list_head axq_acq; struct list_head txq_fifo[ATH_TXFIFO_DEPTH]; u8 txq_headidx; u8 txq_tailidx; int pending_frames; struct sk_buff_head complete_q; }; struct ath_atx_ac { struct ath_txq *txq; struct list_head list; struct list_head tid_q; bool clear_ps_filter; bool sched; }; struct ath_frame_info { struct ath_buf *bf; int framelen; enum ath9k_key_type keytype; u8 keyix; u8 rtscts_rate; u8 retries : 7; u8 baw_tracked : 1; }; struct ath_rxbuf { struct list_head list; struct sk_buff *bf_mpdu; void *bf_desc; dma_addr_t bf_daddr; dma_addr_t bf_buf_addr; }; struct ath_buf_state { u8 bf_type; u8 bfs_paprd; u8 ndelim; bool stale; u16 seqno; unsigned long bfs_paprd_timestamp; }; struct ath_buf { struct list_head list; struct ath_buf *bf_lastbf; /* last buf of this unit (a frame or an aggregate) */ struct ath_buf *bf_next; /* next subframe in the aggregate */ struct sk_buff *bf_mpdu; /* enclosing frame structure */ void *bf_desc; /* virtual addr of desc */ dma_addr_t bf_daddr; /* physical addr of desc */ dma_addr_t bf_buf_addr; /* physical addr of data buffer, for DMA */ struct ieee80211_tx_rate rates[4]; struct ath_buf_state bf_state; }; struct ath_atx_tid { struct list_head list; struct sk_buff_head buf_q; struct sk_buff_head retry_q; struct ath_node *an; struct ath_atx_ac *ac; unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)]; u16 seq_start; u16 seq_next; u16 baw_size; u8 tidno; int baw_head; /* first un-acked tx buffer */ int baw_tail; /* next unused tx buffer slot */ s8 bar_index; bool sched; bool paused; bool active; }; struct ath_node { struct ath_softc *sc; struct ieee80211_sta *sta; /* station struct we're part of */ struct ieee80211_vif *vif; /* interface with which we're associated */ struct ath_atx_tid tid[IEEE80211_NUM_TIDS]; struct ath_atx_ac ac[IEEE80211_NUM_ACS]; u16 maxampdu; u8 mpdudensity; s8 ps_key; bool sleeping; bool no_ps_filter; }; struct ath_tx_control { struct ath_txq *txq; struct ath_node *an; u8 paprd; struct ieee80211_sta *sta; }; #define ATH_TX_ERROR 0x01 /** * @txq_map: Index is mac80211 queue number. This is * not necessarily the same as the hardware queue number * (axq_qnum). */ struct ath_tx { u16 seq_no; u32 txqsetup; spinlock_t txbuflock; struct list_head txbuf; struct ath_txq txq[ATH9K_NUM_TX_QUEUES]; struct ath_descdma txdma; struct ath_txq *txq_map[IEEE80211_NUM_ACS]; struct ath_txq *uapsdq; u32 txq_max_pending[IEEE80211_NUM_ACS]; u16 max_aggr_framelen[IEEE80211_NUM_ACS][4][32]; }; struct ath_rx_edma { struct sk_buff_head rx_fifo; u32 rx_fifo_hwsize; }; struct ath_rx { u8 defant; u8 rxotherant; bool discard_next; u32 *rxlink; u32 num_pkts; unsigned int rxfilter; struct list_head rxbuf; struct ath_descdma rxdma; struct ath_rx_edma rx_edma[ATH9K_RX_QUEUE_MAX]; struct ath_rxbuf *buf_hold; struct sk_buff *frag; u32 ampdu_ref; }; int ath_startrecv(struct ath_softc *sc); bool ath_stoprecv(struct ath_softc *sc); u32 ath_calcrxfilter(struct ath_softc *sc); int ath_rx_init(struct ath_softc *sc, int nbufs); void ath_rx_cleanup(struct ath_softc *sc); int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp); struct ath_txq *ath_txq_setup(struct ath_softc *sc, int qtype, int subtype); void ath_txq_lock(struct ath_softc *sc, struct ath_txq *txq); void ath_txq_unlock(struct ath_softc *sc, struct ath_txq *txq); void ath_txq_unlock_complete(struct ath_softc *sc, struct ath_txq *txq); void ath_tx_cleanupq(struct ath_softc *sc, struct ath_txq *txq); bool ath_drain_all_txq(struct ath_softc *sc); void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq); void ath_tx_node_init(struct ath_softc *sc, struct ath_node *an); void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an); void ath_txq_schedule(struct ath_softc *sc, struct ath_txq *txq); int ath_tx_init(struct ath_softc *sc, int nbufs); int ath_txq_update(struct ath_softc *sc, int qnum, struct ath9k_tx_queue_info *q); void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop); int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb, struct ath_tx_control *txctl); void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct sk_buff *skb); void ath_tx_tasklet(struct ath_softc *sc); void ath_tx_edma_tasklet(struct ath_softc *sc); int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid, u16 *ssn); void ath_tx_aggr_stop(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid); void ath_tx_aggr_resume(struct ath_softc *sc, struct ieee80211_sta *sta, u16 tid); void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an); void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc, struct ath_node *an); void ath9k_release_buffered_frames(struct ieee80211_hw *hw, struct ieee80211_sta *sta, u16 tids, int nframes, enum ieee80211_frame_release_type reason, bool more_data); /********/ /* VIFs */ /********/ struct ath_vif { struct ath_node mcast_node; int av_bslot; bool primary_sta_vif; __le64 tsf_adjust; /* TSF adjustment for staggered beacons */ struct ath_buf *av_bcbuf; }; /*******************/ /* Beacon Handling */ /*******************/ /* * Regardless of the number of beacons we stagger, (i.e. regardless of the * number of BSSIDs) if a given beacon does not go out even after waiting this * number of beacon intervals, the game's up. */ #define BSTUCK_THRESH 9 #define ATH_BCBUF 8 #define ATH_DEFAULT_BINTVAL 100 /* TU */ #define ATH_DEFAULT_BMISS_LIMIT 10 #define IEEE80211_MS_TO_TU(x) (((x) * 1000) / 1024) struct ath_beacon_config { int beacon_interval; u16 listen_interval; u16 dtim_period; u16 bmiss_timeout; u8 dtim_count; bool enable_beacon; bool ibss_creator; }; struct ath_beacon { enum { OK, /* no change needed */ UPDATE, /* update pending */ COMMIT /* beacon sent, commit change */ } updateslot; /* slot time update fsm */ u32 beaconq; u32 bmisscnt; u32 bc_tstamp; struct ieee80211_vif *bslot[ATH_BCBUF]; int slottime; int slotupdate; struct ath9k_tx_queue_info beacon_qi; struct ath_descdma bdma; struct ath_txq *cabq; struct list_head bbuf; bool tx_processed; bool tx_last; }; void ath9k_beacon_tasklet(unsigned long data); bool ath9k_allow_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif); void ath9k_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif, u32 changed); void ath9k_beacon_assign_slot(struct ath_softc *sc, struct ieee80211_vif *vif); void ath9k_beacon_remove_slot(struct ath_softc *sc, struct ieee80211_vif *vif); void ath9k_set_tsfadjust(struct ath_softc *sc, struct ieee80211_vif *vif); void ath9k_set_beacon(struct ath_softc *sc); bool ath9k_csa_is_finished(struct ath_softc *sc); /*******************/ /* Link Monitoring */ /*******************/ #define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */ #define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */ #define ATH_ANI_POLLINTERVAL_OLD 100 /* 100 ms */ #define ATH_ANI_POLLINTERVAL_NEW 1000 /* 1000 ms */ #define ATH_LONG_CALINTERVAL_INT 1000 /* 1000 ms */ #define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */ #define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */ #define ATH_ANI_MAX_SKIP_COUNT 10 #define ATH_PAPRD_TIMEOUT 100 /* msecs */ #define ATH_PLL_WORK_INTERVAL 100 void ath_tx_complete_poll_work(struct work_struct *work); void ath_reset_work(struct work_struct *work); void ath_hw_check(struct work_struct *work); void ath_hw_pll_work(struct work_struct *work); void ath_rx_poll(unsigned long data); void ath_start_rx_poll(struct ath_softc *sc, u8 nbeacon); void ath_paprd_calibrate(struct work_struct *work); void ath_ani_calibrate(unsigned long data); void ath_start_ani(struct ath_softc *sc); void ath_stop_ani(struct ath_softc *sc); void ath_check_ani(struct ath_softc *sc); int ath_update_survey_stats(struct ath_softc *sc); void ath_update_survey_nf(struct ath_softc *sc, int channel); void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type); /**********/ /* BTCOEX */ /**********/ #define ATH_DUMP_BTCOEX(_s, _val) \ do { \ len += scnprintf(buf + len, size - len, \ "%20s : %10d\n", _s, (_val)); \ } while (0) enum bt_op_flags { BT_OP_PRIORITY_DETECTED, BT_OP_SCAN, }; struct ath_btcoex { bool hw_timer_enabled; spinlock_t btcoex_lock; struct timer_list period_timer; /* Timer for BT period */ u32 bt_priority_cnt; unsigned long bt_priority_time; unsigned long op_flags; int bt_stomp_type; /* Types of BT stomping */ u32 btcoex_no_stomp; /* in usec */ u32 btcoex_period; /* in msec */ u32 btscan_no_stomp; /* in usec */ u32 duty_cycle; u32 bt_wait_time; int rssi_count; struct ath_gen_timer *no_stomp_timer; /* Timer for no BT stomping */ struct ath_mci_profile mci; u8 stomp_audio; }; #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT int ath9k_init_btcoex(struct ath_softc *sc); void ath9k_deinit_btcoex(struct ath_softc *sc); void ath9k_start_btcoex(struct ath_softc *sc); void ath9k_stop_btcoex(struct ath_softc *sc); void ath9k_btcoex_timer_resume(struct ath_softc *sc); void ath9k_btcoex_timer_pause(struct ath_softc *sc); void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status); u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen); void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc); int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size); #else static inline int ath9k_init_btcoex(struct ath_softc *sc) { return 0; } static inline void ath9k_deinit_btcoex(struct ath_softc *sc) { } static inline void ath9k_start_btcoex(struct ath_softc *sc) { } static inline void ath9k_stop_btcoex(struct ath_softc *sc) { } static inline void ath9k_btcoex_handle_interrupt(struct ath_softc *sc, u32 status) { } static inline u16 ath9k_btcoex_aggr_limit(struct ath_softc *sc, u32 max_4ms_framelen) { return 0; } static inline void ath9k_btcoex_stop_gen_timer(struct ath_softc *sc) { } static inline int ath9k_dump_btcoex(struct ath_softc *sc, u8 *buf, u32 size) { return 0; } #endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */ struct ath9k_wow_pattern { u8 pattern_bytes[MAX_PATTERN_SIZE]; u8 mask_bytes[MAX_PATTERN_SIZE]; u32 pattern_len; }; /********************/ /* LED Control */ /********************/ #define ATH_LED_PIN_DEF 1 #define ATH_LED_PIN_9287 8 #define ATH_LED_PIN_9300 10 #define ATH_LED_PIN_9485 6 #define ATH_LED_PIN_9462 4 #ifdef CONFIG_MAC80211_LEDS void ath_init_leds(struct ath_softc *sc); void ath_deinit_leds(struct ath_softc *sc); void ath_fill_led_pin(struct ath_softc *sc); #else static inline void ath_init_leds(struct ath_softc *sc) { } static inline void ath_deinit_leds(struct ath_softc *sc) { } static inline void ath_fill_led_pin(struct ath_softc *sc) { } #endif /*******************************/ /* Antenna diversity/combining */ /*******************************/ #define ATH_ANT_RX_CURRENT_SHIFT 4 #define ATH_ANT_RX_MAIN_SHIFT 2 #define ATH_ANT_RX_MASK 0x3 #define ATH_ANT_DIV_COMB_SHORT_SCAN_INTR 50 #define ATH_ANT_DIV_COMB_SHORT_SCAN_PKTCOUNT 0x100 #define ATH_ANT_DIV_COMB_MAX_PKTCOUNT 0x200 #define ATH_ANT_DIV_COMB_INIT_COUNT 95 #define ATH_ANT_DIV_COMB_MAX_COUNT 100 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO 30 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2 20 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO_LOW_RSSI 50 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2_LOW_RSSI 50 #define ATH_ANT_DIV_COMB_LNA1_DELTA_HI -4 #define ATH_ANT_DIV_COMB_LNA1_DELTA_MID -2 #define ATH_ANT_DIV_COMB_LNA1_DELTA_LOW 2 struct ath_ant_comb { u16 count; u16 total_pkt_count; bool scan; bool scan_not_start; int main_total_rssi; int alt_total_rssi; int alt_recv_cnt; int main_recv_cnt; int rssi_lna1; int rssi_lna2; int rssi_add; int rssi_sub; int rssi_first; int rssi_second; int rssi_third; int ant_ratio; int ant_ratio2; bool alt_good; int quick_scan_cnt; enum ath9k_ant_div_comb_lna_conf main_conf; enum ath9k_ant_div_comb_lna_conf first_quick_scan_conf; enum ath9k_ant_div_comb_lna_conf second_quick_scan_conf; bool first_ratio; bool second_ratio; unsigned long scan_start_time; /* * Card-specific config values. */ int low_rssi_thresh; int fast_div_bias; }; void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs); /********************/ /* Main driver core */ /********************/ #define ATH9K_PCI_CUS198 0x0001 #define ATH9K_PCI_CUS230 0x0002 #define ATH9K_PCI_CUS217 0x0004 #define ATH9K_PCI_CUS252 0x0008 #define ATH9K_PCI_WOW 0x0010 #define ATH9K_PCI_BT_ANT_DIV 0x0020 #define ATH9K_PCI_D3_L1_WAR 0x0040 #define ATH9K_PCI_AR9565_1ANT 0x0080 #define ATH9K_PCI_AR9565_2ANT 0x0100 /* * Default cache line size, in bytes. * Used when PCI device not fully initialized by bootrom/BIOS */ #define DEFAULT_CACHELINE 32 #define ATH_REGCLASSIDS_MAX 10 #define ATH_CABQ_READY_TIME 80 /* % of beacon interval */ #define ATH_MAX_SW_RETRIES 30 #define ATH_CHAN_MAX 255 #define ATH_TXPOWER_MAX 100 /* .5 dBm units */ #define ATH_RATE_DUMMY_MARKER 0 enum sc_op_flags { SC_OP_INVALID, SC_OP_BEACONS, SC_OP_ANI_RUN, SC_OP_PRIM_STA_VIF, SC_OP_HW_RESET, SC_OP_SCANNING, }; /* Powersave flags */ #define PS_WAIT_FOR_BEACON BIT(0) #define PS_WAIT_FOR_CAB BIT(1) #define PS_WAIT_FOR_PSPOLL_DATA BIT(2) #define PS_WAIT_FOR_TX_ACK BIT(3) #define PS_BEACON_SYNC BIT(4) #define PS_WAIT_FOR_ANI BIT(5) struct ath_rate_table; struct ath9k_vif_iter_data { u8 hw_macaddr[ETH_ALEN]; /* address of the first vif */ u8 mask[ETH_ALEN]; /* bssid mask */ bool has_hw_macaddr; int naps; /* number of AP vifs */ int nmeshes; /* number of mesh vifs */ int nstations; /* number of station vifs */ int nwds; /* number of WDS vifs */ int nadhocs; /* number of adhoc vifs */ }; /* enum spectral_mode: * * @SPECTRAL_DISABLED: spectral mode is disabled * @SPECTRAL_BACKGROUND: hardware sends samples when it is not busy with * something else. * @SPECTRAL_MANUAL: spectral scan is enabled, triggering for samples * is performed manually. * @SPECTRAL_CHANSCAN: Like manual, but also triggered when changing channels * during a channel scan. */ enum spectral_mode { SPECTRAL_DISABLED = 0, SPECTRAL_BACKGROUND, SPECTRAL_MANUAL, SPECTRAL_CHANSCAN, }; struct ath_softc { struct ieee80211_hw *hw; struct device *dev; struct survey_info *cur_survey; struct survey_info survey[ATH9K_NUM_CHANNELS]; struct tasklet_struct intr_tq; struct tasklet_struct bcon_tasklet; struct ath_hw *sc_ah; void __iomem *mem; int irq; spinlock_t sc_serial_rw; spinlock_t sc_pm_lock; spinlock_t sc_pcu_lock; struct mutex mutex; struct work_struct paprd_work; struct work_struct hw_check_work; struct work_struct hw_reset_work; struct completion paprd_complete; unsigned int hw_busy_count; unsigned long sc_flags; unsigned long driver_data; u32 intrstatus; u16 ps_flags; /* PS_* */ u16 curtxpow; bool ps_enabled; bool ps_idle; short nbcnvifs; short nvifs; unsigned long ps_usecount; struct ath_config config; struct ath_rx rx; struct ath_tx tx; struct ath_beacon beacon; struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS]; #ifdef CONFIG_MAC80211_LEDS bool led_registered; char led_name[32]; struct led_classdev led_cdev; #endif struct ath9k_hw_cal_data caldata; int last_rssi; #ifdef CONFIG_ATH9K_DEBUGFS struct ath9k_debug debug; #endif struct ath_beacon_config cur_beacon_conf; struct delayed_work tx_complete_work; struct delayed_work hw_pll_work; struct timer_list rx_poll_timer; #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT struct ath_btcoex btcoex; struct ath_mci_coex mci_coex; struct work_struct mci_work; #endif struct ath_descdma txsdma; struct ieee80211_vif *csa_vif; struct ath_ant_comb ant_comb; u8 ant_tx, ant_rx; struct dfs_pattern_detector *dfs_detector; u32 wow_enabled; /* relay(fs) channel for spectral scan */ struct rchan *rfs_chan_spec_scan; enum spectral_mode spectral_mode; struct ath_spec_scan spec_config; struct ieee80211_vif *tx99_vif; struct sk_buff *tx99_skb; bool tx99_state; s16 tx99_power; #ifdef CONFIG_PM_SLEEP atomic_t wow_got_bmiss_intr; atomic_t wow_sleep_proc_intr; /* in the middle of WoW sleep ? */ u32 wow_intr_before_sleep; #endif }; #define SPECTRAL_SCAN_BITMASK 0x10 /* Radar info packet format, used for DFS and spectral formats. */ struct ath_radar_info { u8 pulse_length_pri; u8 pulse_length_ext; u8 pulse_bw_info; } __packed; /* The HT20 spectral data has 4 bytes of additional information at it's end. * * [7:0]: all bins {max_magnitude[1:0], bitmap_weight[5:0]} * [7:0]: all bins max_magnitude[9:2] * [7:0]: all bins {max_index[5:0], max_magnitude[11:10]} * [3:0]: max_exp (shift amount to size max bin to 8-bit unsigned) */ struct ath_ht20_mag_info { u8 all_bins[3]; u8 max_exp; } __packed; #define SPECTRAL_HT20_NUM_BINS 56 /* WARNING: don't actually use this struct! MAC may vary the amount of * data by -1/+2. This struct is for reference only. */ struct ath_ht20_fft_packet { u8 data[SPECTRAL_HT20_NUM_BINS]; struct ath_ht20_mag_info mag_info; struct ath_radar_info radar_info; } __packed; #define SPECTRAL_HT20_TOTAL_DATA_LEN (sizeof(struct ath_ht20_fft_packet)) /* Dynamic 20/40 mode: * * [7:0]: lower bins {max_magnitude[1:0], bitmap_weight[5:0]} * [7:0]: lower bins max_magnitude[9:2] * [7:0]: lower bins {max_index[5:0], max_magnitude[11:10]} * [7:0]: upper bins {max_magnitude[1:0], bitmap_weight[5:0]} * [7:0]: upper bins max_magnitude[9:2] * [7:0]: upper bins {max_index[5:0], max_magnitude[11:10]} * [3:0]: max_exp (shift amount to size max bin to 8-bit unsigned) */ struct ath_ht20_40_mag_info { u8 lower_bins[3]; u8 upper_bins[3]; u8 max_exp; } __packed; #define SPECTRAL_HT20_40_NUM_BINS 128 /* WARNING: don't actually use this struct! MAC may vary the amount of * data. This struct is for reference only. */ struct ath_ht20_40_fft_packet { u8 data[SPECTRAL_HT20_40_NUM_BINS]; struct ath_ht20_40_mag_info mag_info; struct ath_radar_info radar_info; } __packed; #define SPECTRAL_HT20_40_TOTAL_DATA_LEN (sizeof(struct ath_ht20_40_fft_packet)) /* grabs the max magnitude from the all/upper/lower bins */ static inline u16 spectral_max_magnitude(u8 *bins) { return (bins[0] & 0xc0) >> 6 | (bins[1] & 0xff) << 2 | (bins[2] & 0x03) << 10; } /* return the max magnitude from the all/upper/lower bins */ static inline u8 spectral_max_index(u8 *bins) { s8 m = (bins[2] & 0xfc) >> 2; /* TODO: this still doesn't always report the right values ... */ if (m > 32) m |= 0xe0; else m &= ~0xe0; return m + 29; } /* return the bitmap weight from the all/upper/lower bins */ static inline u8 spectral_bitmap_weight(u8 *bins) { return bins[0] & 0x3f; } /* FFT sample format given to userspace via debugfs. * * Please keep the type/length at the front position and change * other fields after adding another sample type * * TODO: this might need rework when switching to nl80211-based * interface. */ enum ath_fft_sample_type { ATH_FFT_SAMPLE_HT20 = 1, ATH_FFT_SAMPLE_HT20_40, }; struct fft_sample_tlv { u8 type; /* see ath_fft_sample */ __be16 length; /* type dependent data follows */ } __packed; struct fft_sample_ht20 { struct fft_sample_tlv tlv; u8 max_exp; __be16 freq; s8 rssi; s8 noise; __be16 max_magnitude; u8 max_index; u8 bitmap_weight; __be64 tsf; u8 data[SPECTRAL_HT20_NUM_BINS]; } __packed; struct fft_sample_ht20_40 { struct fft_sample_tlv tlv; u8 channel_type; __be16 freq; s8 lower_rssi; s8 upper_rssi; __be64 tsf; s8 lower_noise; s8 upper_noise; __be16 lower_max_magnitude; __be16 upper_max_magnitude; u8 lower_max_index; u8 upper_max_index; u8 lower_bitmap_weight; u8 upper_bitmap_weight; u8 max_exp; u8 data[SPECTRAL_HT20_40_NUM_BINS]; } __packed; int ath9k_tx99_init(struct ath_softc *sc); void ath9k_tx99_deinit(struct ath_softc *sc); int ath9k_tx99_send(struct ath_softc *sc, struct sk_buff *skb, struct ath_tx_control *txctl); void ath9k_tasklet(unsigned long data); int ath_cabq_update(struct ath_softc *); static inline void ath_read_cachesize(struct ath_common *common, int *csz) { common->bus_ops->read_cachesize(common, csz); } extern struct ieee80211_ops ath9k_ops; extern int ath9k_modparam_nohwcrypt; extern int led_blink; extern bool is_ath9k_unloaded; u8 ath9k_parse_mpdudensity(u8 mpdudensity); irqreturn_t ath_isr(int irq, void *dev); int ath9k_init_device(u16 devid, struct ath_softc *sc, const struct ath_bus_ops *bus_ops); void ath9k_deinit_device(struct ath_softc *sc); void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw); void ath9k_reload_chainmask_settings(struct ath_softc *sc); void ath9k_spectral_scan_trigger(struct ieee80211_hw *hw); int ath9k_spectral_scan_config(struct ieee80211_hw *hw, enum spectral_mode spectral_mode); #ifdef CONFIG_ATH9K_PCI int ath_pci_init(void); void ath_pci_exit(void); #else static inline int ath_pci_init(void) { return 0; }; static inline void ath_pci_exit(void) {}; #endif #ifdef CONFIG_ATH9K_AHB int ath_ahb_init(void); void ath_ahb_exit(void); #else static inline int ath_ahb_init(void) { return 0; }; static inline void ath_ahb_exit(void) {}; #endif void ath9k_ps_wakeup(struct ath_softc *sc); void ath9k_ps_restore(struct ath_softc *sc); u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate); void ath_start_rfkill_poll(struct ath_softc *sc); void ath9k_rfkill_poll_state(struct ieee80211_hw *hw); void ath9k_calculate_iter_data(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ath9k_vif_iter_data *iter_data); #endif /* ATH9K_H */