| /* |
| * 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 <linux/etherdevice.h> |
| #include <linux/device.h> |
| #include <linux/interrupt.h> |
| #include <linux/leds.h> |
| #include <linux/completion.h> |
| |
| #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<<i)) |
| |
| struct ath_config { |
| u16 txpowlimit; |
| u8 cabqReadytime; |
| }; |
| |
| /*************************/ |
| /* Descriptor Management */ |
| /*************************/ |
| |
| #define ATH_TXBUF_RESET(_bf) do { \ |
| (_bf)->bf_stale = false; \ |
| (_bf)->bf_lastbf = NULL; \ |
| (_bf)->bf_next = NULL; \ |
| memset(&((_bf)->bf_state), 0, \ |
| sizeof(struct ath_buf_state)); \ |
| } while (0) |
| |
| #define ATH_RXBUF_RESET(_bf) do { \ |
| (_bf)->bf_stale = false; \ |
| } 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 |
| #define ATH_AMPDU_SUBFRAME_DEFAULT 32 |
| |
| #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 |
| |
| enum ATH_AGGR_STATUS { |
| ATH_AGGR_DONE, |
| ATH_AGGR_BAW_CLOSED, |
| ATH_AGGR_LIMITED, |
| }; |
| |
| #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; |
| int sched; |
| struct list_head list; |
| struct list_head tid_q; |
| bool clear_ps_filter; |
| }; |
| |
| struct ath_frame_info { |
| struct ath_buf *bf; |
| int framelen; |
| enum ath9k_key_type keytype; |
| u8 keyix; |
| u8 retries; |
| u8 rtscts_rate; |
| }; |
| |
| struct ath_buf_state { |
| u8 bf_type; |
| u8 bfs_paprd; |
| u8 ndelim; |
| 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 */ |
| bool bf_stale; |
| 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 ath_node *an; |
| struct ath_atx_ac *ac; |
| unsigned long tx_buf[BITS_TO_LONGS(ATH_TID_MAX_BUFS)]; |
| int bar_index; |
| u16 seq_start; |
| u16 seq_next; |
| u16 baw_size; |
| int tidno; |
| int baw_head; /* first un-acked tx buffer */ |
| int baw_tail; /* next unused tx buffer slot */ |
| 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]; |
| int ps_key; |
| |
| u16 maxampdu; |
| u8 mpdudensity; |
| |
| bool sleeping; |
| |
| #if defined(CONFIG_MAC80211_DEBUGFS) && defined(CONFIG_ATH9K_DEBUGFS) |
| struct dentry *node_stat; |
| #endif |
| }; |
| |
| 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 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 { |
| 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); |
| |
| /*******************/ |
| /* 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 += snprintf(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_LNA1_LNA2_SWITCH_DELTA -1 |
| #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 |
| |
| enum ath9k_ant_div_comb_lna_conf { |
| ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2, |
| ATH_ANT_DIV_COMB_LNA2, |
| ATH_ANT_DIV_COMB_LNA1, |
| ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2, |
| }; |
| |
| 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; |
| bool alt_good; |
| int quick_scan_cnt; |
| int 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; |
| }; |
| |
| void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs); |
| void ath_ant_comb_update(struct ath_softc *sc); |
| |
| /********************/ |
| /* Main driver core */ |
| /********************/ |
| |
| #define ATH9K_PCI_CUS198 0x0001 |
| #define ATH9K_PCI_CUS230 0x0002 |
| #define ATH9K_PCI_CUS217 0x0004 |
| #define ATH9K_PCI_WOW 0x0008 |
| |
| /* |
| * 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 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; |
| |
| #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, |
| }; |
| |
| 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; |
| |
| 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); |
| |
| bool ath9k_uses_beacons(int type); |
| 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); |
| extern 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 */ |