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
66 struct ath10k_skb_cb {
73 struct ath10k_htt_txbuf *txbuf;
83 static inline struct ath10k_skb_cb *ATH10K_SKB_CB(struct sk_buff *skb)
85 BUILD_BUG_ON(sizeof(struct ath10k_skb_cb) >
86 IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
87 return (struct ath10k_skb_cb *)&IEEE80211_SKB_CB(skb)->driver_data;
90 static inline u32 host_interest_item_address(u32 item_offset)
92 return QCA988X_HOST_INTEREST_ADDRESS + item_offset;
99 struct ath10k_mem_chunk {
107 enum ath10k_htc_ep_id eid;
108 struct completion service_ready;
109 struct completion unified_ready;
110 wait_queue_head_t tx_credits_wq;
111 struct wmi_cmd_map *cmd;
112 struct wmi_vdev_param_map *vdev_param;
113 struct wmi_pdev_param_map *pdev_param;
116 struct ath10k_mem_chunk mem_chunks[WMI_MAX_MEM_REQS];
119 struct ath10k_fw_stats_peer {
120 u8 peer_macaddr[ETH_ALEN];
123 u32 peer_rx_rate; /* 10x only */
126 struct ath10k_fw_stats {
158 u32 sw_retry_failure;
159 u32 illgl_rate_phy_err;
160 u32 pdev_cont_xretry;
167 s32 mid_ppdu_route_change;
186 struct ath10k_fw_stats_peer peer_stat[TARGET_NUM_PEERS];
188 /* TODO: Beacon filter stats */
192 struct ath10k_dfs_stats {
196 u32 pulses_discarded;
200 #define ATH10K_MAX_NUM_PEER_IDS (1 << 11) /* htt rx_desc limit */
203 struct list_head list;
206 DECLARE_BITMAP(peer_ids, ATH10K_MAX_NUM_PEER_IDS);
207 struct ieee80211_key_conf *keys[WMI_MAX_KEY_INDEX + 1];
211 struct ath10k_vif *arvif;
213 /* the following are protected by ar->data_lock */
214 u32 changed; /* IEEE80211_RC_* */
219 struct work_struct update_wk;
222 #define ATH10K_VDEV_SETUP_TIMEOUT_HZ (5*HZ)
225 struct list_head list;
228 enum wmi_vdev_type vdev_type;
229 enum wmi_vdev_subtype vdev_subtype;
232 struct sk_buff *beacon;
233 /* protected by data_lock */
236 dma_addr_t beacon_paddr;
239 struct ieee80211_vif *vif;
243 bool spectral_enabled;
247 struct work_struct wep_key_work;
248 struct ieee80211_key_conf *wep_keys[WMI_MAX_KEY_INDEX + 1];
250 u8 def_wep_key_newidx;
259 /* 127 stations; wmi limit */
263 u8 ssid[IEEE80211_MAX_SSID_LEN];
265 /* P2P_IE with NoA attribute for P2P_GO case */
275 int num_legacy_stations;
278 struct ath10k_vif_iter {
280 struct ath10k_vif *arvif;
283 /* used for crash-dump storage, protected by data-lock */
284 struct ath10k_fw_crash_data {
285 bool crashed_since_read;
288 struct timespec timestamp;
289 __le32 registers[REG_DUMP_COUNT_QCA988X];
292 struct ath10k_debug {
293 struct dentry *debugfs_phy;
295 struct ath10k_fw_stats fw_stats;
296 struct completion fw_stats_complete;
297 DECLARE_BITMAP(wmi_service_bitmap, WMI_SERVICE_MAX);
299 unsigned long htt_stats_mask;
300 struct delayed_work htt_stats_dwork;
301 struct ath10k_dfs_stats dfs_stats;
302 struct ath_dfs_pool_stats dfs_pool_stats;
309 struct ath10k_fw_crash_data *fw_crash_data;
313 ATH10K_STATE_OFF = 0,
316 /* When doing firmware recovery the device is first powered down.
317 * mac80211 is supposed to call in to start() hook later on. It is
318 * however possible that driver unloading and firmware crash overlap.
319 * mac80211 can wait on conf_mutex in stop() while the device is
320 * stopped in ath10k_core_restart() work holding conf_mutex. The state
321 * RESTARTED means that the device is up and mac80211 has started hw
322 * reconfiguration. Once mac80211 is done with the reconfiguration we
323 * set the state to STATE_ON in restart_complete(). */
324 ATH10K_STATE_RESTARTING,
325 ATH10K_STATE_RESTARTED,
327 /* The device has crashed while restarting hw. This state is like ON
328 * but commands are blocked in HTC and -ECOMM response is given. This
329 * prevents completion timeouts and makes the driver more responsive to
330 * userspace commands. This is also prevents recursive recovery. */
337 enum ath10k_firmware_mode {
338 /* the default mode, standard 802.11 functionality */
339 ATH10K_FIRMWARE_MODE_NORMAL,
341 /* factory tests etc */
342 ATH10K_FIRMWARE_MODE_UTF,
345 enum ath10k_fw_features {
346 /* wmi_mgmt_rx_hdr contains extra RSSI information */
347 ATH10K_FW_FEATURE_EXT_WMI_MGMT_RX = 0,
349 /* firmware from 10X branch */
350 ATH10K_FW_FEATURE_WMI_10X = 1,
352 /* firmware support tx frame management over WMI, otherwise it's HTT */
353 ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX = 2,
355 /* Firmware does not support P2P */
356 ATH10K_FW_FEATURE_NO_P2P = 3,
358 /* Firmware 10.2 feature bit. The ATH10K_FW_FEATURE_WMI_10X feature bit
359 * is required to be set as well.
361 ATH10K_FW_FEATURE_WMI_10_2 = 4,
364 ATH10K_FW_FEATURE_COUNT,
367 enum ath10k_dev_flags {
368 /* Indicates that ath10k device is during CAC phase of DFS */
370 ATH10K_FLAG_CORE_REGISTERED,
373 enum ath10k_scan_state {
375 ATH10K_SCAN_STARTING,
377 ATH10K_SCAN_ABORTING,
380 static inline const char *ath10k_scan_state_str(enum ath10k_scan_state state)
383 case ATH10K_SCAN_IDLE:
385 case ATH10K_SCAN_STARTING:
387 case ATH10K_SCAN_RUNNING:
389 case ATH10K_SCAN_ABORTING:
397 struct ath_common ath_common;
398 struct ieee80211_hw *hw;
400 u8 mac_addr[ETH_ALEN];
405 u32 fw_version_minor;
406 u16 fw_version_release;
407 u16 fw_version_build;
415 DECLARE_BITMAP(fw_features, ATH10K_FW_FEATURE_COUNT);
417 struct targetdef *targetdef;
418 struct hostdef *hostdef;
423 const struct ath10k_hif_ops *ops;
426 struct completion target_suspend;
428 struct ath10k_bmi bmi;
429 struct ath10k_wmi wmi;
430 struct ath10k_htc htc;
431 struct ath10k_htt htt;
433 struct ath10k_hw_params {
438 struct ath10k_hw_params_fw {
446 const struct firmware *board;
447 const void *board_data;
450 const struct firmware *otp;
451 const void *otp_data;
454 const struct firmware *firmware;
455 const void *firmware_data;
461 struct completion started;
462 struct completion completed;
463 struct completion on_channel;
464 struct delayed_work timeout;
465 enum ath10k_scan_state state;
472 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
475 /* should never be NULL; needed for regular htt rx */
476 struct ieee80211_channel *rx_channel;
478 /* valid during scan; needed for mgmt rx during scan */
479 struct ieee80211_channel *scan_channel;
481 /* current operating channel definition */
482 struct cfg80211_chan_def chandef;
487 bool monitor_started;
488 unsigned int filter_flags;
489 unsigned long dev_flags;
490 u32 dfs_block_radar_events;
492 /* protected by conf_mutex */
494 int num_started_vdevs;
496 /* Protected by conf-mutex */
497 u8 supp_tx_chainmask;
498 u8 supp_rx_chainmask;
502 struct wmi_pdev_set_wmm_params_arg wmm_params;
503 struct completion install_key_done;
505 struct completion vdev_setup_done;
507 struct workqueue_struct *workqueue;
509 /* prevents concurrent FW reconfiguration */
510 struct mutex conf_mutex;
512 /* protects shared structure data */
513 spinlock_t data_lock;
515 struct list_head arvifs;
516 struct list_head peers;
517 wait_queue_head_t peer_mapping_wq;
519 /* number of created peers; protected by data_lock */
522 struct work_struct offchan_tx_work;
523 struct sk_buff_head offchan_tx_queue;
524 struct completion offchan_tx_completed;
525 struct sk_buff *offchan_tx_skb;
527 struct work_struct wmi_mgmt_tx_work;
528 struct sk_buff_head wmi_mgmt_tx_queue;
530 enum ath10k_state state;
532 struct work_struct register_work;
533 struct work_struct restart_work;
535 /* cycle count is reported twice for each visited channel during scan.
536 * access protected by data_lock */
537 u32 survey_last_rx_clear_count;
538 u32 survey_last_cycle_count;
539 struct survey_info survey[ATH10K_NUM_CHANS];
541 struct dfs_pattern_detector *dfs_detector;
543 #ifdef CONFIG_ATH10K_DEBUGFS
544 struct ath10k_debug debug;
548 /* relay(fs) channel for spectral scan */
549 struct rchan *rfs_chan_spec_scan;
551 /* spectral_mode and spec_config are protected by conf_mutex */
552 enum ath10k_spectral_mode mode;
553 struct ath10k_spec_scan config;
557 /* protected by conf_mutex */
558 const struct firmware *utf;
559 DECLARE_BITMAP(orig_fw_features, ATH10K_FW_FEATURE_COUNT);
561 /* protected by data_lock */
566 u8 drv_priv[0] __aligned(sizeof(void *));
569 struct ath10k *ath10k_core_create(size_t priv_size, struct device *dev,
570 const struct ath10k_hif_ops *hif_ops);
571 void ath10k_core_destroy(struct ath10k *ar);
573 int ath10k_core_start(struct ath10k *ar, enum ath10k_firmware_mode mode);
574 int ath10k_wait_for_suspend(struct ath10k *ar, u32 suspend_opt);
575 void ath10k_core_stop(struct ath10k *ar);
576 int ath10k_core_register(struct ath10k *ar, u32 chip_id);
577 void ath10k_core_unregister(struct ath10k *ar);
579 #endif /* _CORE_H_ */