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 {
87 struct ath10k_htt_txbuf *txbuf;
97 static inline struct ath10k_skb_cb *ATH10K_SKB_CB(struct sk_buff *skb)
99 BUILD_BUG_ON(sizeof(struct ath10k_skb_cb) >
100 IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
101 return (struct ath10k_skb_cb *)&IEEE80211_SKB_CB(skb)->driver_data;
104 static inline u32 host_interest_item_address(u32 item_offset)
106 return QCA988X_HOST_INTEREST_ADDRESS + item_offset;
113 struct ath10k_mem_chunk {
121 enum ath10k_htc_ep_id eid;
122 struct completion service_ready;
123 struct completion unified_ready;
124 wait_queue_head_t tx_credits_wq;
125 struct wmi_cmd_map *cmd;
126 struct wmi_vdev_param_map *vdev_param;
127 struct wmi_pdev_param_map *pdev_param;
130 struct ath10k_mem_chunk mem_chunks[WMI_MAX_MEM_REQS];
133 struct ath10k_fw_stats_peer {
134 struct list_head list;
136 u8 peer_macaddr[ETH_ALEN];
139 u32 peer_rx_rate; /* 10x only */
142 struct ath10k_fw_stats_pdev {
143 struct list_head list;
176 u32 sw_retry_failure;
177 u32 illgl_rate_phy_err;
178 u32 pdev_cont_xretry;
185 s32 mid_ppdu_route_change;
201 struct ath10k_fw_stats {
202 struct list_head pdevs;
203 struct list_head peers;
206 struct ath10k_dfs_stats {
210 u32 pulses_discarded;
214 #define ATH10K_MAX_NUM_PEER_IDS (1 << 11) /* htt rx_desc limit */
217 struct list_head list;
220 DECLARE_BITMAP(peer_ids, ATH10K_MAX_NUM_PEER_IDS);
221 struct ieee80211_key_conf *keys[WMI_MAX_KEY_INDEX + 1];
225 struct ath10k_vif *arvif;
227 /* the following are protected by ar->data_lock */
228 u32 changed; /* IEEE80211_RC_* */
233 struct work_struct update_wk;
236 #define ATH10K_VDEV_SETUP_TIMEOUT_HZ (5*HZ)
239 struct list_head list;
242 enum wmi_vdev_type vdev_type;
243 enum wmi_vdev_subtype vdev_subtype;
246 struct sk_buff *beacon;
247 /* protected by data_lock */
250 dma_addr_t beacon_paddr;
253 struct ieee80211_vif *vif;
257 bool spectral_enabled;
261 struct work_struct wep_key_work;
262 struct ieee80211_key_conf *wep_keys[WMI_MAX_KEY_INDEX + 1];
264 u8 def_wep_key_newidx;
273 /* 127 stations; wmi limit */
277 u8 ssid[IEEE80211_MAX_SSID_LEN];
279 /* P2P_IE with NoA attribute for P2P_GO case */
289 int num_legacy_stations;
292 struct ath10k_vif_iter {
294 struct ath10k_vif *arvif;
297 /* used for crash-dump storage, protected by data-lock */
298 struct ath10k_fw_crash_data {
299 bool crashed_since_read;
302 struct timespec timestamp;
303 __le32 registers[REG_DUMP_COUNT_QCA988X];
306 struct ath10k_debug {
307 struct dentry *debugfs_phy;
309 struct ath10k_fw_stats fw_stats;
310 struct completion fw_stats_complete;
312 DECLARE_BITMAP(wmi_service_bitmap, WMI_SERVICE_MAX);
314 unsigned long htt_stats_mask;
315 struct delayed_work htt_stats_dwork;
316 struct ath10k_dfs_stats dfs_stats;
317 struct ath_dfs_pool_stats dfs_pool_stats;
319 /* protected by conf_mutex */
326 struct ath10k_fw_crash_data *fw_crash_data;
330 ATH10K_STATE_OFF = 0,
333 /* When doing firmware recovery the device is first powered down.
334 * mac80211 is supposed to call in to start() hook later on. It is
335 * however possible that driver unloading and firmware crash overlap.
336 * mac80211 can wait on conf_mutex in stop() while the device is
337 * stopped in ath10k_core_restart() work holding conf_mutex. The state
338 * RESTARTED means that the device is up and mac80211 has started hw
339 * reconfiguration. Once mac80211 is done with the reconfiguration we
340 * set the state to STATE_ON in restart_complete(). */
341 ATH10K_STATE_RESTARTING,
342 ATH10K_STATE_RESTARTED,
344 /* The device has crashed while restarting hw. This state is like ON
345 * but commands are blocked in HTC and -ECOMM response is given. This
346 * prevents completion timeouts and makes the driver more responsive to
347 * userspace commands. This is also prevents recursive recovery. */
354 enum ath10k_firmware_mode {
355 /* the default mode, standard 802.11 functionality */
356 ATH10K_FIRMWARE_MODE_NORMAL,
358 /* factory tests etc */
359 ATH10K_FIRMWARE_MODE_UTF,
362 enum ath10k_fw_features {
363 /* wmi_mgmt_rx_hdr contains extra RSSI information */
364 ATH10K_FW_FEATURE_EXT_WMI_MGMT_RX = 0,
366 /* firmware from 10X branch */
367 ATH10K_FW_FEATURE_WMI_10X = 1,
369 /* firmware support tx frame management over WMI, otherwise it's HTT */
370 ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX = 2,
372 /* Firmware does not support P2P */
373 ATH10K_FW_FEATURE_NO_P2P = 3,
375 /* Firmware 10.2 feature bit. The ATH10K_FW_FEATURE_WMI_10X feature bit
376 * is required to be set as well.
378 ATH10K_FW_FEATURE_WMI_10_2 = 4,
381 ATH10K_FW_FEATURE_COUNT,
384 enum ath10k_dev_flags {
385 /* Indicates that ath10k device is during CAC phase of DFS */
387 ATH10K_FLAG_CORE_REGISTERED,
390 enum ath10k_scan_state {
392 ATH10K_SCAN_STARTING,
394 ATH10K_SCAN_ABORTING,
397 static inline const char *ath10k_scan_state_str(enum ath10k_scan_state state)
400 case ATH10K_SCAN_IDLE:
402 case ATH10K_SCAN_STARTING:
404 case ATH10K_SCAN_RUNNING:
406 case ATH10K_SCAN_ABORTING:
414 struct ath_common ath_common;
415 struct ieee80211_hw *hw;
417 u8 mac_addr[ETH_ALEN];
422 u32 fw_version_minor;
423 u16 fw_version_release;
424 u16 fw_version_build;
432 DECLARE_BITMAP(fw_features, ATH10K_FW_FEATURE_COUNT);
434 struct targetdef *targetdef;
435 struct hostdef *hostdef;
441 const struct ath10k_hif_ops *ops;
444 struct completion target_suspend;
446 struct ath10k_bmi bmi;
447 struct ath10k_wmi wmi;
448 struct ath10k_htc htc;
449 struct ath10k_htt htt;
451 struct ath10k_hw_params {
456 struct ath10k_hw_params_fw {
464 const struct firmware *board;
465 const void *board_data;
468 const struct firmware *otp;
469 const void *otp_data;
472 const struct firmware *firmware;
473 const void *firmware_data;
479 struct completion started;
480 struct completion completed;
481 struct completion on_channel;
482 struct delayed_work timeout;
483 enum ath10k_scan_state state;
490 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
493 /* should never be NULL; needed for regular htt rx */
494 struct ieee80211_channel *rx_channel;
496 /* valid during scan; needed for mgmt rx during scan */
497 struct ieee80211_channel *scan_channel;
499 /* current operating channel definition */
500 struct cfg80211_chan_def chandef;
502 unsigned long long free_vdev_map;
505 bool monitor_started;
506 unsigned int filter_flags;
507 unsigned long dev_flags;
508 u32 dfs_block_radar_events;
510 /* protected by conf_mutex */
512 int num_started_vdevs;
514 /* Protected by conf-mutex */
515 u8 supp_tx_chainmask;
516 u8 supp_rx_chainmask;
520 struct wmi_pdev_set_wmm_params_arg wmm_params;
521 struct completion install_key_done;
523 struct completion vdev_setup_done;
525 struct workqueue_struct *workqueue;
527 /* prevents concurrent FW reconfiguration */
528 struct mutex conf_mutex;
530 /* protects shared structure data */
531 spinlock_t data_lock;
533 struct list_head arvifs;
534 struct list_head peers;
535 wait_queue_head_t peer_mapping_wq;
537 /* number of created peers; protected by data_lock */
540 struct work_struct offchan_tx_work;
541 struct sk_buff_head offchan_tx_queue;
542 struct completion offchan_tx_completed;
543 struct sk_buff *offchan_tx_skb;
545 struct work_struct wmi_mgmt_tx_work;
546 struct sk_buff_head wmi_mgmt_tx_queue;
548 enum ath10k_state state;
550 struct work_struct register_work;
551 struct work_struct restart_work;
553 /* cycle count is reported twice for each visited channel during scan.
554 * access protected by data_lock */
555 u32 survey_last_rx_clear_count;
556 u32 survey_last_cycle_count;
557 struct survey_info survey[ATH10K_NUM_CHANS];
559 struct dfs_pattern_detector *dfs_detector;
561 #ifdef CONFIG_ATH10K_DEBUGFS
562 struct ath10k_debug debug;
566 /* relay(fs) channel for spectral scan */
567 struct rchan *rfs_chan_spec_scan;
569 /* spectral_mode and spec_config are protected by conf_mutex */
570 enum ath10k_spectral_mode mode;
571 struct ath10k_spec_scan config;
575 /* protected by conf_mutex */
576 const struct firmware *utf;
577 DECLARE_BITMAP(orig_fw_features, ATH10K_FW_FEATURE_COUNT);
579 /* protected by data_lock */
584 /* protected by data_lock */
585 u32 fw_crash_counter;
586 u32 fw_warm_reset_counter;
587 u32 fw_cold_reset_counter;
591 u8 drv_priv[0] __aligned(sizeof(void *));
594 struct ath10k *ath10k_core_create(size_t priv_size, struct device *dev,
596 const struct ath10k_hif_ops *hif_ops);
597 void ath10k_core_destroy(struct ath10k *ar);
599 int ath10k_core_start(struct ath10k *ar, enum ath10k_firmware_mode mode);
600 int ath10k_wait_for_suspend(struct ath10k *ar, u32 suspend_opt);
601 void ath10k_core_stop(struct ath10k *ar);
602 int ath10k_core_register(struct ath10k *ar, u32 chip_id);
603 void ath10k_core_unregister(struct ath10k *ar);
605 #endif /* _CORE_H_ */