2 * Copyright (c) 2005-2011 Atheros Communications Inc.
3 * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
21 #include <linux/completion.h>
22 #include <linux/if_ether.h>
23 #include <linux/types.h>
24 #include <linux/pci.h>
29 #include "targaddrs.h"
33 #include "../dfs_pattern_detector.h"
35 #define MS(_v, _f) (((_v) & _f##_MASK) >> _f##_LSB)
36 #define SM(_v, _f) (((_v) << _f##_LSB) & _f##_MASK)
37 #define WO(_f) ((_f##_OFFSET) >> 2)
39 #define ATH10K_SCAN_ID 0
40 #define WMI_READY_TIMEOUT (5 * HZ)
41 #define ATH10K_FLUSH_TIMEOUT_HZ (5*HZ)
42 #define ATH10K_NUM_CHANS 38
44 /* Antenna noise floor */
45 #define ATH10K_DEFAULT_NOISE_FLOOR -95
47 #define ATH10K_MAX_NUM_MGMT_PENDING 128
49 /* number of failed packets */
50 #define ATH10K_KICKOUT_THRESHOLD 50
53 * Use insanely high numbers to make sure that the firmware implementation
54 * won't start, we have the same functionality already in hostapd. Unit
57 #define ATH10K_KEEPALIVE_MIN_IDLE 3747
58 #define ATH10K_KEEPALIVE_MAX_IDLE 3895
59 #define ATH10K_KEEPALIVE_MAX_UNRESPONSIVE 3900
63 struct ath10k_skb_cb {
70 struct ath10k_htt_txbuf *txbuf;
80 static inline struct ath10k_skb_cb *ATH10K_SKB_CB(struct sk_buff *skb)
82 BUILD_BUG_ON(sizeof(struct ath10k_skb_cb) >
83 IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
84 return (struct ath10k_skb_cb *)&IEEE80211_SKB_CB(skb)->driver_data;
87 static inline u32 host_interest_item_address(u32 item_offset)
89 return QCA988X_HOST_INTEREST_ADDRESS + item_offset;
96 #define ATH10K_MAX_MEM_REQS 16
98 struct ath10k_mem_chunk {
106 enum ath10k_htc_ep_id eid;
107 struct completion service_ready;
108 struct completion unified_ready;
109 wait_queue_head_t tx_credits_wq;
110 struct wmi_cmd_map *cmd;
111 struct wmi_vdev_param_map *vdev_param;
112 struct wmi_pdev_param_map *pdev_param;
115 struct ath10k_mem_chunk mem_chunks[ATH10K_MAX_MEM_REQS];
118 struct ath10k_peer_stat {
119 u8 peer_macaddr[ETH_ALEN];
122 u32 peer_rx_rate; /* 10x only */
125 struct ath10k_target_stats {
157 u32 sw_retry_failure;
158 u32 illgl_rate_phy_err;
159 u32 pdev_cont_xretry;
166 s32 mid_ppdu_route_change;
185 struct ath10k_peer_stat peer_stat[TARGET_NUM_PEERS];
187 /* TODO: Beacon filter stats */
191 struct ath10k_dfs_stats {
195 u32 pulses_discarded;
199 #define ATH10K_MAX_NUM_PEER_IDS (1 << 11) /* htt rx_desc limit */
202 struct list_head list;
205 DECLARE_BITMAP(peer_ids, ATH10K_MAX_NUM_PEER_IDS);
206 struct ieee80211_key_conf *keys[WMI_MAX_KEY_INDEX + 1];
210 struct ath10k_vif *arvif;
212 /* the following are protected by ar->data_lock */
213 u32 changed; /* IEEE80211_RC_* */
218 struct work_struct update_wk;
221 #define ATH10K_VDEV_SETUP_TIMEOUT_HZ (5*HZ)
224 struct list_head list;
227 enum wmi_vdev_type vdev_type;
228 enum wmi_vdev_subtype vdev_subtype;
231 struct sk_buff *beacon;
232 /* protected by data_lock */
236 struct ieee80211_vif *vif;
243 struct work_struct wep_key_work;
244 struct ieee80211_key_conf *wep_keys[WMI_MAX_KEY_INDEX + 1];
246 u8 def_wep_key_newidx;
255 /* 127 stations; wmi limit */
259 u8 ssid[IEEE80211_MAX_SSID_LEN];
261 /* P2P_IE with NoA attribute for P2P_GO case */
271 int num_legacy_stations;
274 struct ath10k_vif_iter {
276 struct ath10k_vif *arvif;
279 struct ath10k_debug {
280 struct dentry *debugfs_phy;
282 struct ath10k_target_stats target_stats;
283 u32 wmi_service_bitmap[WMI_SERVICE_BM_SIZE];
285 struct completion event_stats_compl;
287 unsigned long htt_stats_mask;
288 struct delayed_work htt_stats_dwork;
289 struct ath10k_dfs_stats dfs_stats;
290 struct ath_dfs_pool_stats dfs_pool_stats;
296 ATH10K_STATE_OFF = 0,
299 /* When doing firmware recovery the device is first powered down.
300 * mac80211 is supposed to call in to start() hook later on. It is
301 * however possible that driver unloading and firmware crash overlap.
302 * mac80211 can wait on conf_mutex in stop() while the device is
303 * stopped in ath10k_core_restart() work holding conf_mutex. The state
304 * RESTARTED means that the device is up and mac80211 has started hw
305 * reconfiguration. Once mac80211 is done with the reconfiguration we
306 * set the state to STATE_ON in restart_complete(). */
307 ATH10K_STATE_RESTARTING,
308 ATH10K_STATE_RESTARTED,
310 /* The device has crashed while restarting hw. This state is like ON
311 * but commands are blocked in HTC and -ECOMM response is given. This
312 * prevents completion timeouts and makes the driver more responsive to
313 * userspace commands. This is also prevents recursive recovery. */
317 enum ath10k_fw_features {
318 /* wmi_mgmt_rx_hdr contains extra RSSI information */
319 ATH10K_FW_FEATURE_EXT_WMI_MGMT_RX = 0,
321 /* firmware from 10X branch */
322 ATH10K_FW_FEATURE_WMI_10X = 1,
324 /* firmware support tx frame management over WMI, otherwise it's HTT */
325 ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX = 2,
327 /* Firmware does not support P2P */
328 ATH10K_FW_FEATURE_NO_P2P = 3,
331 ATH10K_FW_FEATURE_COUNT,
334 enum ath10k_dev_flags {
335 /* Indicates that ath10k device is during CAC phase of DFS */
337 ATH10K_FLAG_FIRST_BOOT_DONE,
338 ATH10K_FLAG_CORE_REGISTERED,
342 struct ath_common ath_common;
343 struct ieee80211_hw *hw;
345 u8 mac_addr[ETH_ALEN];
350 u32 fw_version_minor;
351 u16 fw_version_release;
352 u16 fw_version_build;
360 DECLARE_BITMAP(fw_features, ATH10K_FW_FEATURE_COUNT);
362 struct targetdef *targetdef;
363 struct hostdef *hostdef;
369 const struct ath10k_hif_ops *ops;
372 struct completion target_suspend;
374 struct ath10k_bmi bmi;
375 struct ath10k_wmi wmi;
376 struct ath10k_htc htc;
377 struct ath10k_htt htt;
379 struct ath10k_hw_params {
384 struct ath10k_hw_params_fw {
392 const struct firmware *board;
393 const void *board_data;
396 const struct firmware *otp;
397 const void *otp_data;
400 const struct firmware *firmware;
401 const void *firmware_data;
407 struct completion started;
408 struct completion completed;
409 struct completion on_channel;
410 struct timer_list timeout;
419 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
422 /* should never be NULL; needed for regular htt rx */
423 struct ieee80211_channel *rx_channel;
425 /* valid during scan; needed for mgmt rx during scan */
426 struct ieee80211_channel *scan_channel;
428 /* current operating channel definition */
429 struct cfg80211_chan_def chandef;
435 bool monitor_started;
436 unsigned int filter_flags;
437 unsigned long dev_flags;
438 u32 dfs_block_radar_events;
440 /* protected by conf_mutex */
442 int num_started_vdevs;
444 /* Protected by conf-mutex */
445 u8 supp_tx_chainmask;
446 u8 supp_rx_chainmask;
450 struct wmi_pdev_set_wmm_params_arg wmm_params;
451 struct completion install_key_done;
453 struct completion vdev_setup_done;
455 struct workqueue_struct *workqueue;
457 /* prevents concurrent FW reconfiguration */
458 struct mutex conf_mutex;
460 /* protects shared structure data */
461 spinlock_t data_lock;
463 struct list_head arvifs;
464 struct list_head peers;
465 wait_queue_head_t peer_mapping_wq;
467 /* number of created peers; protected by data_lock */
470 struct work_struct offchan_tx_work;
471 struct sk_buff_head offchan_tx_queue;
472 struct completion offchan_tx_completed;
473 struct sk_buff *offchan_tx_skb;
475 struct work_struct wmi_mgmt_tx_work;
476 struct sk_buff_head wmi_mgmt_tx_queue;
478 enum ath10k_state state;
480 struct work_struct register_work;
481 struct work_struct restart_work;
483 /* cycle count is reported twice for each visited channel during scan.
484 * access protected by data_lock */
485 u32 survey_last_rx_clear_count;
486 u32 survey_last_cycle_count;
487 struct survey_info survey[ATH10K_NUM_CHANS];
489 struct dfs_pattern_detector *dfs_detector;
491 #ifdef CONFIG_ATH10K_DEBUGFS
492 struct ath10k_debug debug;
496 struct ath10k *ath10k_core_create(void *hif_priv, struct device *dev,
497 const struct ath10k_hif_ops *hif_ops);
498 void ath10k_core_destroy(struct ath10k *ar);
500 int ath10k_core_start(struct ath10k *ar);
501 int ath10k_wait_for_suspend(struct ath10k *ar, u32 suspend_opt);
502 void ath10k_core_stop(struct ath10k *ar);
503 int ath10k_core_register(struct ath10k *ar, u32 chip_id);
504 void ath10k_core_unregister(struct ath10k *ar);
506 #endif /* _CORE_H_ */