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1/*2 * Copyright (c) 2010-2011 Atheros Communications Inc.3 *4 * Permission to use, copy, modify, and/or distribute this software for any5 * purpose with or without fee is hereby granted, provided that the above6 * copyright notice and this permission notice appear in all copies.7 *8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.15 */16 17#ifndef HTC_H18#define HTC_H19 20#include <linux/module.h>21#include <linux/usb.h>22#include <linux/firmware.h>23#include <linux/skbuff.h>24#include <linux/netdevice.h>25#include <linux/etherdevice.h>26#include <linux/leds.h>27#include <linux/slab.h>28#include <net/mac80211.h>29 30#include "common.h"31#include "htc_hst.h"32#include "hif_usb.h"33#include "wmi.h"34 35#define ATH_STA_SHORT_CALINTERVAL 1000 /* 1 second */36#define ATH_AP_SHORT_CALINTERVAL 100 /* 100 ms */37#define ATH_ANI_POLLINTERVAL 100 /* 100 ms */38#define ATH_LONG_CALINTERVAL 30000 /* 30 seconds */39#define ATH_RESTART_CALINTERVAL 1200000 /* 20 minutes */40 41#define ATH_DEFAULT_BMISS_LIMIT 1042#define TSF_TO_TU(_h, _l) \43 ((((u32)(_h)) << 22) | (((u32)(_l)) >> 10))44 45extern struct ieee80211_ops ath9k_htc_ops;46extern int htc_modparam_nohwcrypt;47#ifdef CONFIG_MAC80211_LEDS48extern int ath9k_htc_led_blink;49#endif50 51enum htc_phymode {52 HTC_MODE_11NA = 0,53 HTC_MODE_11NG = 154};55 56enum htc_opmode {57 HTC_M_STA = 1,58 HTC_M_IBSS = 0,59 HTC_M_AHDEMO = 3,60 HTC_M_HOSTAP = 6,61 HTC_M_MONITOR = 8,62 HTC_M_WDS = 263};64 65#define ATH9K_HTC_AMPDU 166#define ATH9K_HTC_NORMAL 267#define ATH9K_HTC_BEACON 368#define ATH9K_HTC_MGMT 469 70#define ATH9K_HTC_TX_CTSONLY 0x171#define ATH9K_HTC_TX_RTSCTS 0x272 73struct tx_frame_hdr {74 u8 data_type;75 u8 node_idx;76 u8 vif_idx;77 u8 tidno;78 __be32 flags; /* ATH9K_HTC_TX_* */79 u8 key_type;80 u8 keyix;81 u8 cookie;82 u8 pad;83} __packed;84 85struct tx_mgmt_hdr {86 u8 node_idx;87 u8 vif_idx;88 u8 tidno;89 u8 flags;90 u8 key_type;91 u8 keyix;92 u8 cookie;93 u8 pad;94} __packed;95 96struct tx_beacon_header {97 u8 vif_index;98 u8 len_changed;99 u16 rev;100} __packed;101 102#define MAX_TX_AMPDU_SUBFRAMES_9271 17103#define MAX_TX_AMPDU_SUBFRAMES_7010 22104 105struct ath9k_htc_cap_target {106 __be32 ampdu_limit;107 u8 ampdu_subframes;108 u8 enable_coex;109 u8 tx_chainmask;110 u8 pad;111} __packed;112 113struct ath9k_htc_target_vif {114 u8 index;115 u8 opmode;116 u8 myaddr[ETH_ALEN];117 u8 ath_cap;118 __be16 rtsthreshold;119 u8 pad;120} __packed;121 122struct ath9k_htc_target_sta {123 u8 macaddr[ETH_ALEN];124 u8 bssid[ETH_ALEN];125 u8 sta_index;126 u8 vif_index;127 u8 is_vif_sta;128 __be16 flags;129 __be16 htcap;130 __be16 maxampdu;131 u8 pad;132} __packed;133 134struct ath9k_htc_target_aggr {135 u8 sta_index;136 u8 tidno;137 u8 aggr_enable;138 u8 padding;139} __packed;140 141#define ATH_HTC_RATE_MAX 30142 143#define WLAN_RC_DS_FLAG 0x01144#define WLAN_RC_40_FLAG 0x02145#define WLAN_RC_SGI_FLAG 0x04146#define WLAN_RC_HT_FLAG 0x08147#define ATH_RC_TX_STBC_FLAG 0x20148 149struct ath9k_htc_rateset {150 u8 rs_nrates;151 u8 rs_rates[ATH_HTC_RATE_MAX];152};153 154struct ath9k_htc_rate {155 struct ath9k_htc_rateset legacy_rates;156 struct ath9k_htc_rateset ht_rates;157} __packed;158 159struct ath9k_htc_target_rate {160 u8 sta_index;161 u8 isnew;162 __be32 capflags;163 struct ath9k_htc_rate rates;164};165 166struct ath9k_htc_target_rate_mask {167 u8 vif_index;168 u8 band;169 __be32 mask;170 u16 pad;171} __packed;172 173struct ath9k_htc_target_int_stats {174 __be32 rx;175 __be32 rxorn;176 __be32 rxeol;177 __be32 txurn;178 __be32 txto;179 __be32 cst;180} __packed;181 182struct ath9k_htc_target_tx_stats {183 __be32 xretries;184 __be32 fifoerr;185 __be32 filtered;186 __be32 timer_exp;187 __be32 shortretries;188 __be32 longretries;189 __be32 qnull;190 __be32 encap_fail;191 __be32 nobuf;192} __packed;193 194struct ath9k_htc_target_rx_stats {195 __be32 nobuf;196 __be32 host_send;197 __be32 host_done;198} __packed;199 200#define ATH9K_HTC_MAX_VIF 2201#define ATH9K_HTC_MAX_BCN_VIF 2202 203#define INC_VIF(_priv, _type) do { \204 switch (_type) { \205 case NL80211_IFTYPE_STATION: \206 _priv->num_sta_vif++; \207 break; \208 case NL80211_IFTYPE_ADHOC: \209 _priv->num_ibss_vif++; \210 break; \211 case NL80211_IFTYPE_AP: \212 _priv->num_ap_vif++; \213 break; \214 case NL80211_IFTYPE_MESH_POINT: \215 _priv->num_mbss_vif++; \216 break; \217 default: \218 break; \219 } \220 } while (0)221 222#define DEC_VIF(_priv, _type) do { \223 switch (_type) { \224 case NL80211_IFTYPE_STATION: \225 _priv->num_sta_vif--; \226 break; \227 case NL80211_IFTYPE_ADHOC: \228 _priv->num_ibss_vif--; \229 break; \230 case NL80211_IFTYPE_AP: \231 _priv->num_ap_vif--; \232 break; \233 case NL80211_IFTYPE_MESH_POINT: \234 _priv->num_mbss_vif--; \235 break; \236 default: \237 break; \238 } \239 } while (0)240 241struct ath9k_htc_vif {242 u8 index;243 u16 seq_no;244 bool beacon_configured;245 int bslot;246 __le64 tsfadjust;247};248 249struct ath9k_vif_iter_data {250 const u8 *hw_macaddr;251 u8 mask[ETH_ALEN];252};253 254#define ATH9K_HTC_MAX_STA 8255#define ATH9K_HTC_MAX_TID 8256 257enum tid_aggr_state {258 AGGR_STOP = 0,259 AGGR_PROGRESS,260 AGGR_START,261 AGGR_OPERATIONAL262};263 264struct ath9k_htc_sta {265 u8 index;266 enum tid_aggr_state tid_state[ATH9K_HTC_MAX_TID];267 struct work_struct rc_update_work;268 struct ath9k_htc_priv *htc_priv;269};270 271#define ATH9K_HTC_RXBUF 256272#define HTC_RX_FRAME_HEADER_SIZE 40273 274struct ath9k_htc_rxbuf {275 bool in_process;276 struct sk_buff *skb;277 struct ath_htc_rx_status rxstatus;278 struct list_head list;279};280 281struct ath9k_htc_rx {282 struct list_head rxbuf;283 spinlock_t rxbuflock;284 bool initialized;285};286 287#define ATH9K_HTC_TX_CLEANUP_INTERVAL 50 /* ms */288#define ATH9K_HTC_TX_TIMEOUT_INTERVAL 3000 /* ms */289#define ATH9K_HTC_TX_RESERVE 10290#define ATH9K_HTC_TX_TIMEOUT_COUNT 40291#define ATH9K_HTC_TX_THRESHOLD (MAX_TX_BUF_NUM - ATH9K_HTC_TX_RESERVE)292 293#define ATH9K_HTC_OP_TX_QUEUES_STOP BIT(0)294#define ATH9K_HTC_OP_TX_DRAIN BIT(1)295 296struct ath9k_htc_tx {297 u8 flags;298 int queued_cnt;299 struct sk_buff_head mgmt_ep_queue;300 struct sk_buff_head cab_ep_queue;301 struct sk_buff_head data_be_queue;302 struct sk_buff_head data_bk_queue;303 struct sk_buff_head data_vi_queue;304 struct sk_buff_head data_vo_queue;305 struct sk_buff_head tx_failed;306 DECLARE_BITMAP(tx_slot, MAX_TX_BUF_NUM);307 struct timer_list cleanup_timer;308 spinlock_t tx_lock;309};310 311struct ath9k_htc_tx_ctl {312 u8 type; /* ATH9K_HTC_* */313 u8 epid;314 u8 txok;315 u8 sta_idx;316 unsigned long timestamp;317};318 319static inline struct ath9k_htc_tx_ctl *HTC_SKB_CB(struct sk_buff *skb)320{321 struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);322 323 BUILD_BUG_ON(sizeof(struct ath9k_htc_tx_ctl) >324 IEEE80211_TX_INFO_DRIVER_DATA_SIZE);325 return (struct ath9k_htc_tx_ctl *) &tx_info->driver_data;326}327 328#ifdef CONFIG_ATH9K_HTC_DEBUGFS329#define __STAT_SAFE(hif_dev, expr) do { ((hif_dev)->htc_handle->drv_priv ? (expr) : 0); } while (0)330#define CAB_STAT_INC(priv) do { ((priv)->debug.tx_stats.cab_queued++); } while (0)331#define TX_QSTAT_INC(priv, q) do { ((priv)->debug.tx_stats.queue_stats[q]++); } while (0)332 333#define TX_STAT_INC(hif_dev, c) \334 __STAT_SAFE((hif_dev), (hif_dev)->htc_handle->drv_priv->debug.tx_stats.c++)335#define TX_STAT_ADD(hif_dev, c, a) \336 __STAT_SAFE((hif_dev), (hif_dev)->htc_handle->drv_priv->debug.tx_stats.c += a)337#define RX_STAT_INC(hif_dev, c) \338 __STAT_SAFE((hif_dev), (hif_dev)->htc_handle->drv_priv->debug.skbrx_stats.c++)339#define RX_STAT_ADD(hif_dev, c, a) \340 __STAT_SAFE((hif_dev), (hif_dev)->htc_handle->drv_priv->debug.skbrx_stats.c += a)341 342void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,343 struct ath_rx_status *rs);344 345struct ath_tx_stats {346 u32 buf_queued;347 u32 buf_completed;348 u32 skb_queued;349 u32 skb_success;350 u32 skb_success_bytes;351 u32 skb_failed;352 u32 cab_queued;353 u32 queue_stats[IEEE80211_NUM_ACS];354};355 356struct ath_skbrx_stats {357 u32 skb_allocated;358 u32 skb_completed;359 u32 skb_completed_bytes;360 u32 skb_dropped;361};362 363struct ath9k_debug {364 struct dentry *debugfs_phy;365 struct ath_tx_stats tx_stats;366 struct ath_rx_stats rx_stats;367 struct ath_skbrx_stats skbrx_stats;368};369 370void ath9k_htc_get_et_strings(struct ieee80211_hw *hw,371 struct ieee80211_vif *vif,372 u32 sset, u8 *data);373int ath9k_htc_get_et_sset_count(struct ieee80211_hw *hw,374 struct ieee80211_vif *vif, int sset);375void ath9k_htc_get_et_stats(struct ieee80211_hw *hw,376 struct ieee80211_vif *vif,377 struct ethtool_stats *stats, u64 *data);378#else379 380#define TX_STAT_INC(hif_dev, c) do { } while (0)381#define TX_STAT_ADD(hif_dev, c, a) do { } while (0)382#define RX_STAT_INC(hif_dev, c) do { } while (0)383#define RX_STAT_ADD(hif_dev, c, a) do { } while (0)384 385#define CAB_STAT_INC(priv)386#define TX_QSTAT_INC(priv, c)387 388static inline void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,389 struct ath_rx_status *rs)390{391}392 393#endif /* CONFIG_ATH9K_HTC_DEBUGFS */394 395#define ATH_LED_PIN_DEF 1396#define ATH_LED_PIN_9287 10397#define ATH_LED_PIN_9271 15398#define ATH_LED_PIN_7010 12399 400#define BSTUCK_THRESHOLD 10401 402/*403 * Adjust these when the max. no of beaconing interfaces is404 * increased.405 */406#define DEFAULT_SWBA_RESPONSE 40 /* in TUs */407#define MIN_SWBA_RESPONSE 10 /* in TUs */408 409struct htc_beacon {410 enum {411 OK, /* no change needed */412 UPDATE, /* update pending */413 COMMIT /* beacon sent, commit change */414 } updateslot; /* slot time update fsm */415 416 struct ieee80211_vif *bslot[ATH9K_HTC_MAX_BCN_VIF];417 u32 bmisscnt;418 u32 beaconq;419 int slottime;420 int slotupdate;421};422 423struct ath_btcoex {424 u32 bt_priority_cnt;425 unsigned long bt_priority_time;426 int bt_stomp_type; /* Types of BT stomping */427 u32 btcoex_no_stomp;428 u32 btcoex_period;429 u32 btscan_no_stomp;430};431 432#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT433void ath9k_htc_init_btcoex(struct ath9k_htc_priv *priv, char *product);434void ath9k_htc_start_btcoex(struct ath9k_htc_priv *priv);435void ath9k_htc_stop_btcoex(struct ath9k_htc_priv *priv);436#else437static inline void ath9k_htc_init_btcoex(struct ath9k_htc_priv *priv, char *product)438{439}440static inline void ath9k_htc_start_btcoex(struct ath9k_htc_priv *priv)441{442}443static inline void ath9k_htc_stop_btcoex(struct ath9k_htc_priv *priv)444{445}446#endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */447 448#define OP_BT_PRIORITY_DETECTED 3449#define OP_BT_SCAN 4450#define OP_TSF_RESET 6451 452enum htc_op_flags {453 HTC_FWFLAG_NO_RMW,454};455 456struct ath9k_htc_priv {457 struct device *dev;458 struct ieee80211_hw *hw;459 struct ath_hw *ah;460 struct htc_target *htc;461 struct wmi *wmi;462 463 u16 fw_version_major;464 u16 fw_version_minor;465 466 enum htc_endpoint_id wmi_cmd_ep;467 enum htc_endpoint_id beacon_ep;468 enum htc_endpoint_id cab_ep;469 enum htc_endpoint_id uapsd_ep;470 enum htc_endpoint_id mgmt_ep;471 enum htc_endpoint_id data_be_ep;472 enum htc_endpoint_id data_bk_ep;473 enum htc_endpoint_id data_vi_ep;474 enum htc_endpoint_id data_vo_ep;475 476 u8 vif_slot;477 u8 mon_vif_idx;478 u8 sta_slot;479 u8 vif_sta_pos[ATH9K_HTC_MAX_VIF];480 u8 num_ibss_vif;481 u8 num_mbss_vif;482 u8 num_sta_vif;483 u8 num_sta_assoc_vif;484 u8 num_ap_vif;485 486 u16 curtxpow;487 u16 txpowlimit;488 u16 nvifs;489 u16 nstations;490 bool rearm_ani;491 bool reconfig_beacon;492 unsigned int rxfilter;493 unsigned long op_flags;494 unsigned long fw_flags;495 496 struct ath9k_hw_cal_data caldata;497 struct ath_spec_scan_priv spec_priv;498 499 spinlock_t beacon_lock;500 struct ath_beacon_config cur_beacon_conf;501 struct htc_beacon beacon;502 503 struct ath9k_htc_rx rx;504 struct ath9k_htc_tx tx;505 506 struct tasklet_struct swba_tasklet;507 struct tasklet_struct rx_tasklet;508 struct delayed_work ani_work;509 struct tasklet_struct tx_failed_tasklet;510 struct work_struct ps_work;511 struct work_struct fatal_work;512 513 struct mutex htc_pm_lock;514 unsigned long ps_usecount;515 bool ps_enabled;516 bool ps_idle;517 bool initialized;518 519#ifdef CONFIG_MAC80211_LEDS520 enum led_brightness brightness;521 bool led_registered;522 char led_name[32];523 struct led_classdev led_cdev;524 struct work_struct led_work;525#endif526 527 int cabq;528 int hwq_map[IEEE80211_NUM_ACS];529 530#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT531 struct ath_btcoex btcoex;532#endif533 534 struct delayed_work coex_period_work;535 struct delayed_work duty_cycle_work;536#ifdef CONFIG_ATH9K_HTC_DEBUGFS537 struct ath9k_debug debug;538#endif539 struct mutex mutex;540 struct ieee80211_vif *csa_vif;541};542 543static inline void ath_read_cachesize(struct ath_common *common, int *csz)544{545 common->bus_ops->read_cachesize(common, csz);546}547 548void ath9k_htc_reset(struct ath9k_htc_priv *priv);549 550void ath9k_htc_assign_bslot(struct ath9k_htc_priv *priv,551 struct ieee80211_vif *vif);552void ath9k_htc_remove_bslot(struct ath9k_htc_priv *priv,553 struct ieee80211_vif *vif);554void ath9k_htc_set_tsfadjust(struct ath9k_htc_priv *priv,555 struct ieee80211_vif *vif);556void ath9k_htc_beaconq_config(struct ath9k_htc_priv *priv);557void ath9k_htc_beacon_config(struct ath9k_htc_priv *priv,558 struct ieee80211_vif *vif);559void ath9k_htc_beacon_reconfig(struct ath9k_htc_priv *priv);560void ath9k_htc_swba(struct ath9k_htc_priv *priv,561 struct wmi_event_swba *swba);562 563void ath9k_htc_rxep(void *priv, struct sk_buff *skb,564 enum htc_endpoint_id ep_id);565void ath9k_htc_txep(void *priv, struct sk_buff *skb, enum htc_endpoint_id ep_id,566 bool txok);567void ath9k_htc_beaconep(void *drv_priv, struct sk_buff *skb,568 enum htc_endpoint_id ep_id, bool txok);569 570int ath9k_htc_update_cap_target(struct ath9k_htc_priv *priv,571 u8 enable_coex);572void ath9k_htc_ani_work(struct work_struct *work);573void ath9k_htc_start_ani(struct ath9k_htc_priv *priv);574void ath9k_htc_stop_ani(struct ath9k_htc_priv *priv);575 576int ath9k_tx_init(struct ath9k_htc_priv *priv);577int ath9k_htc_tx_start(struct ath9k_htc_priv *priv,578 struct ieee80211_sta *sta,579 struct sk_buff *skb, u8 slot, bool is_cab);580void ath9k_tx_cleanup(struct ath9k_htc_priv *priv);581bool ath9k_htc_txq_setup(struct ath9k_htc_priv *priv, int subtype);582int ath9k_htc_cabq_setup(struct ath9k_htc_priv *priv);583int get_hw_qnum(u16 queue, int *hwq_map);584int ath_htc_txq_update(struct ath9k_htc_priv *priv, int qnum,585 struct ath9k_tx_queue_info *qinfo);586void ath9k_htc_check_stop_queues(struct ath9k_htc_priv *priv);587void ath9k_htc_check_wake_queues(struct ath9k_htc_priv *priv);588int ath9k_htc_tx_get_slot(struct ath9k_htc_priv *priv);589void ath9k_htc_tx_clear_slot(struct ath9k_htc_priv *priv, int slot);590void ath9k_htc_tx_drain(struct ath9k_htc_priv *priv);591void ath9k_htc_txstatus(struct ath9k_htc_priv *priv, void *wmi_event);592void ath9k_tx_failed_tasklet(struct tasklet_struct *t);593void ath9k_htc_tx_cleanup_timer(struct timer_list *t);594bool ath9k_htc_csa_is_finished(struct ath9k_htc_priv *priv);595 596int ath9k_rx_init(struct ath9k_htc_priv *priv);597void ath9k_rx_cleanup(struct ath9k_htc_priv *priv);598void ath9k_host_rx_init(struct ath9k_htc_priv *priv);599void ath9k_rx_tasklet(struct tasklet_struct *t);600u32 ath9k_htc_calcrxfilter(struct ath9k_htc_priv *priv);601 602void ath9k_htc_ps_wakeup(struct ath9k_htc_priv *priv);603void ath9k_htc_ps_restore(struct ath9k_htc_priv *priv);604void ath9k_ps_work(struct work_struct *work);605bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,606 enum ath9k_power_mode mode);607 608void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv);609void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw);610 611struct base_eep_header *ath9k_htc_get_eeprom_base(struct ath9k_htc_priv *priv);612 613#ifdef CONFIG_MAC80211_LEDS614void ath9k_configure_leds(struct ath9k_htc_priv *priv);615void ath9k_init_leds(struct ath9k_htc_priv *priv);616void ath9k_deinit_leds(struct ath9k_htc_priv *priv);617void ath9k_led_work(struct work_struct *work);618#else619static inline void ath9k_configure_leds(struct ath9k_htc_priv *priv)620{621}622 623static inline void ath9k_init_leds(struct ath9k_htc_priv *priv)624{625}626 627static inline void ath9k_deinit_leds(struct ath9k_htc_priv *priv)628{629}630 631static inline void ath9k_led_work(struct work_struct *work)632{633}634#endif635 636int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,637 u16 devid, char *product, u32 drv_info);638void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug);639#ifdef CONFIG_PM640void ath9k_htc_suspend(struct htc_target *htc_handle);641int ath9k_htc_resume(struct htc_target *htc_handle);642#endif643#ifdef CONFIG_ATH9K_HTC_DEBUGFS644int ath9k_htc_init_debug(struct ath_hw *ah);645void ath9k_htc_deinit_debug(struct ath9k_htc_priv *priv);646#else647static inline int ath9k_htc_init_debug(struct ath_hw *ah) { return 0; };648static inline void ath9k_htc_deinit_debug(struct ath9k_htc_priv *priv)649{650}651#endif /* CONFIG_ATH9K_HTC_DEBUGFS */652 653#endif /* HTC_H */654