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>
25 #include <linux/uuid.h>
26 #include <linux/time.h>
31 #include "targaddrs.h"
35 #include "../dfs_pattern_detector.h"
38 #define MS(_v, _f) (((_v) & _f##_MASK) >> _f##_LSB)
39 #define SM(_v, _f) (((_v) << _f##_LSB) & _f##_MASK)
40 #define WO(_f) ((_f##_OFFSET) >> 2)
42 #define ATH10K_SCAN_ID 0
43 #define WMI_READY_TIMEOUT (5 * HZ)
44 #define ATH10K_FLUSH_TIMEOUT_HZ (5*HZ)
45 #define ATH10K_NUM_CHANS 38
47 /* Antenna noise floor */
48 #define ATH10K_DEFAULT_NOISE_FLOOR -95
50 #define ATH10K_MAX_NUM_MGMT_PENDING 128
52 /* number of failed packets */
53 #define ATH10K_KICKOUT_THRESHOLD 50
56 * Use insanely high numbers to make sure that the firmware implementation
57 * won't start, we have the same functionality already in hostapd. Unit
60 #define ATH10K_KEEPALIVE_MIN_IDLE 3747
61 #define ATH10K_KEEPALIVE_MAX_IDLE 3895
62 #define ATH10K_KEEPALIVE_MAX_UNRESPONSIVE 3900
70 static inline const char *ath10k_bus_str(enum ath10k_bus bus)
80 struct ath10k_skb_cb {
89 struct ath10k_htt_txbuf *txbuf;
99 static inline struct ath10k_skb_cb *ATH10K_SKB_CB(struct sk_buff *skb)
101 BUILD_BUG_ON(sizeof(struct ath10k_skb_cb) >
102 IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
103 return (struct ath10k_skb_cb *)&IEEE80211_SKB_CB(skb)->driver_data;
106 static inline u32 host_interest_item_address(u32 item_offset)
108 return QCA988X_HOST_INTEREST_ADDRESS + item_offset;
115 struct ath10k_mem_chunk {
123 enum ath10k_htc_ep_id eid;
124 struct completion service_ready;
125 struct completion unified_ready;
126 wait_queue_head_t tx_credits_wq;
127 DECLARE_BITMAP(svc_map, WMI_SERVICE_MAX);
128 struct wmi_cmd_map *cmd;
129 struct wmi_vdev_param_map *vdev_param;
130 struct wmi_pdev_param_map *pdev_param;
133 struct ath10k_mem_chunk mem_chunks[WMI_MAX_MEM_REQS];
136 struct ath10k_fw_stats_peer {
137 struct list_head list;
139 u8 peer_macaddr[ETH_ALEN];
142 u32 peer_rx_rate; /* 10x only */
145 struct ath10k_fw_stats_pdev {
146 struct list_head list;
179 u32 sw_retry_failure;
180 u32 illgl_rate_phy_err;
181 u32 pdev_cont_xretry;
188 s32 mid_ppdu_route_change;
204 struct ath10k_fw_stats {
205 struct list_head pdevs;
206 struct list_head peers;
209 struct ath10k_dfs_stats {
213 u32 pulses_discarded;
217 #define ATH10K_MAX_NUM_PEER_IDS (1 << 11) /* htt rx_desc limit */
220 struct list_head list;
223 DECLARE_BITMAP(peer_ids, ATH10K_MAX_NUM_PEER_IDS);
225 /* protected by ar->data_lock */
226 struct ieee80211_key_conf *keys[WMI_MAX_KEY_INDEX + 1];
230 struct ath10k_vif *arvif;
232 /* the following are protected by ar->data_lock */
233 u32 changed; /* IEEE80211_RC_* */
238 struct work_struct update_wk;
241 #define ATH10K_VDEV_SETUP_TIMEOUT_HZ (5*HZ)
244 struct list_head list;
247 enum wmi_vdev_type vdev_type;
248 enum wmi_vdev_subtype vdev_subtype;
251 struct sk_buff *beacon;
252 /* protected by data_lock */
255 dma_addr_t beacon_paddr;
258 struct ieee80211_vif *vif;
262 bool spectral_enabled;
266 struct work_struct wep_key_work;
267 struct ieee80211_key_conf *wep_keys[WMI_MAX_KEY_INDEX + 1];
269 u8 def_wep_key_newidx;
278 /* 127 stations; wmi limit */
282 u8 ssid[IEEE80211_MAX_SSID_LEN];
284 /* P2P_IE with NoA attribute for P2P_GO case */
294 int num_legacy_stations;
298 struct ath10k_vif_iter {
300 struct ath10k_vif *arvif;
303 /* used for crash-dump storage, protected by data-lock */
304 struct ath10k_fw_crash_data {
305 bool crashed_since_read;
308 struct timespec timestamp;
309 __le32 registers[REG_DUMP_COUNT_QCA988X];
312 struct ath10k_debug {
313 struct dentry *debugfs_phy;
315 struct ath10k_fw_stats fw_stats;
316 struct completion fw_stats_complete;
319 unsigned long htt_stats_mask;
320 struct delayed_work htt_stats_dwork;
321 struct ath10k_dfs_stats dfs_stats;
322 struct ath_dfs_pool_stats dfs_pool_stats;
324 /* protected by conf_mutex */
332 struct ath10k_fw_crash_data *fw_crash_data;
336 ATH10K_STATE_OFF = 0,
339 /* When doing firmware recovery the device is first powered down.
340 * mac80211 is supposed to call in to start() hook later on. It is
341 * however possible that driver unloading and firmware crash overlap.
342 * mac80211 can wait on conf_mutex in stop() while the device is
343 * stopped in ath10k_core_restart() work holding conf_mutex. The state
344 * RESTARTED means that the device is up and mac80211 has started hw
345 * reconfiguration. Once mac80211 is done with the reconfiguration we
346 * set the state to STATE_ON in reconfig_complete(). */
347 ATH10K_STATE_RESTARTING,
348 ATH10K_STATE_RESTARTED,
350 /* The device has crashed while restarting hw. This state is like ON
351 * but commands are blocked in HTC and -ECOMM response is given. This
352 * prevents completion timeouts and makes the driver more responsive to
353 * userspace commands. This is also prevents recursive recovery. */
360 enum ath10k_firmware_mode {
361 /* the default mode, standard 802.11 functionality */
362 ATH10K_FIRMWARE_MODE_NORMAL,
364 /* factory tests etc */
365 ATH10K_FIRMWARE_MODE_UTF,
368 enum ath10k_fw_features {
369 /* wmi_mgmt_rx_hdr contains extra RSSI information */
370 ATH10K_FW_FEATURE_EXT_WMI_MGMT_RX = 0,
372 /* firmware from 10X branch */
373 ATH10K_FW_FEATURE_WMI_10X = 1,
375 /* firmware support tx frame management over WMI, otherwise it's HTT */
376 ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX = 2,
378 /* Firmware does not support P2P */
379 ATH10K_FW_FEATURE_NO_P2P = 3,
381 /* Firmware 10.2 feature bit. The ATH10K_FW_FEATURE_WMI_10X feature bit
382 * is required to be set as well.
384 ATH10K_FW_FEATURE_WMI_10_2 = 4,
387 ATH10K_FW_FEATURE_COUNT,
390 enum ath10k_dev_flags {
391 /* Indicates that ath10k device is during CAC phase of DFS */
393 ATH10K_FLAG_CORE_REGISTERED,
395 /* Device has crashed and needs to restart. This indicates any pending
396 * waiters should immediately cancel instead of waiting for a time out.
398 ATH10K_FLAG_CRASH_FLUSH,
401 enum ath10k_cal_mode {
402 ATH10K_CAL_MODE_FILE,
406 static inline const char *ath10k_cal_mode_str(enum ath10k_cal_mode mode)
409 case ATH10K_CAL_MODE_FILE:
411 case ATH10K_CAL_MODE_OTP:
418 enum ath10k_scan_state {
420 ATH10K_SCAN_STARTING,
422 ATH10K_SCAN_ABORTING,
425 static inline const char *ath10k_scan_state_str(enum ath10k_scan_state state)
428 case ATH10K_SCAN_IDLE:
430 case ATH10K_SCAN_STARTING:
432 case ATH10K_SCAN_RUNNING:
434 case ATH10K_SCAN_ABORTING:
442 struct ath_common ath_common;
443 struct ieee80211_hw *hw;
445 u8 mac_addr[ETH_ALEN];
450 u32 fw_version_minor;
451 u16 fw_version_release;
452 u16 fw_version_build;
460 DECLARE_BITMAP(fw_features, ATH10K_FW_FEATURE_COUNT);
462 struct targetdef *targetdef;
463 struct hostdef *hostdef;
469 const struct ath10k_hif_ops *ops;
472 struct completion target_suspend;
474 struct ath10k_bmi bmi;
475 struct ath10k_wmi wmi;
476 struct ath10k_htc htc;
477 struct ath10k_htt htt;
479 struct ath10k_hw_params {
484 struct ath10k_hw_params_fw {
492 const struct firmware *board;
493 const void *board_data;
496 const struct firmware *otp;
497 const void *otp_data;
500 const struct firmware *firmware;
501 const void *firmware_data;
504 const struct firmware *cal_file;
507 enum ath10k_cal_mode cal_mode;
510 struct completion started;
511 struct completion completed;
512 struct completion on_channel;
513 struct delayed_work timeout;
514 enum ath10k_scan_state state;
521 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
524 /* should never be NULL; needed for regular htt rx */
525 struct ieee80211_channel *rx_channel;
527 /* valid during scan; needed for mgmt rx during scan */
528 struct ieee80211_channel *scan_channel;
530 /* current operating channel definition */
531 struct cfg80211_chan_def chandef;
533 unsigned long long free_vdev_map;
536 bool monitor_started;
537 unsigned int filter_flags;
538 unsigned long dev_flags;
539 u32 dfs_block_radar_events;
541 /* protected by conf_mutex */
543 int num_started_vdevs;
545 /* Protected by conf-mutex */
546 u8 supp_tx_chainmask;
547 u8 supp_rx_chainmask;
551 struct wmi_pdev_set_wmm_params_arg wmm_params;
552 struct completion install_key_done;
554 struct completion vdev_setup_done;
556 struct workqueue_struct *workqueue;
558 /* prevents concurrent FW reconfiguration */
559 struct mutex conf_mutex;
561 /* protects shared structure data */
562 spinlock_t data_lock;
564 struct list_head arvifs;
565 struct list_head peers;
566 wait_queue_head_t peer_mapping_wq;
568 /* protected by conf_mutex */
573 int max_num_stations;
575 struct work_struct offchan_tx_work;
576 struct sk_buff_head offchan_tx_queue;
577 struct completion offchan_tx_completed;
578 struct sk_buff *offchan_tx_skb;
580 struct work_struct wmi_mgmt_tx_work;
581 struct sk_buff_head wmi_mgmt_tx_queue;
583 enum ath10k_state state;
585 struct work_struct register_work;
586 struct work_struct restart_work;
588 /* cycle count is reported twice for each visited channel during scan.
589 * access protected by data_lock */
590 u32 survey_last_rx_clear_count;
591 u32 survey_last_cycle_count;
592 struct survey_info survey[ATH10K_NUM_CHANS];
594 struct dfs_pattern_detector *dfs_detector;
596 #ifdef CONFIG_ATH10K_DEBUGFS
597 struct ath10k_debug debug;
601 /* relay(fs) channel for spectral scan */
602 struct rchan *rfs_chan_spec_scan;
604 /* spectral_mode and spec_config are protected by conf_mutex */
605 enum ath10k_spectral_mode mode;
606 struct ath10k_spec_scan config;
610 /* protected by conf_mutex */
611 const struct firmware *utf;
612 DECLARE_BITMAP(orig_fw_features, ATH10K_FW_FEATURE_COUNT);
614 /* protected by data_lock */
619 /* protected by data_lock */
620 u32 fw_crash_counter;
621 u32 fw_warm_reset_counter;
622 u32 fw_cold_reset_counter;
626 u8 drv_priv[0] __aligned(sizeof(void *));
629 struct ath10k *ath10k_core_create(size_t priv_size, struct device *dev,
631 const struct ath10k_hif_ops *hif_ops);
632 void ath10k_core_destroy(struct ath10k *ar);
634 int ath10k_core_start(struct ath10k *ar, enum ath10k_firmware_mode mode);
635 int ath10k_wait_for_suspend(struct ath10k *ar, u32 suspend_opt);
636 void ath10k_core_stop(struct ath10k *ar);
637 int ath10k_core_register(struct ath10k *ar, u32 chip_id);
638 void ath10k_core_unregister(struct ath10k *ar);
640 #endif /* _CORE_H_ */