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"
34 #define MS(_v, _f) (((_v) & _f##_MASK) >> _f##_LSB)
35 #define SM(_v, _f) (((_v) << _f##_LSB) & _f##_MASK)
36 #define WO(_f) ((_f##_OFFSET) >> 2)
38 #define ATH10K_SCAN_ID 0
39 #define WMI_READY_TIMEOUT (5 * HZ)
40 #define ATH10K_FLUSH_TIMEOUT_HZ (5*HZ)
41 #define ATH10K_NUM_CHANS 38
43 /* Antenna noise floor */
44 #define ATH10K_DEFAULT_NOISE_FLOOR -95
48 struct ath10k_skb_cb {
57 struct sk_buff *txfrag;
61 static inline struct ath10k_skb_cb *ATH10K_SKB_CB(struct sk_buff *skb)
63 BUILD_BUG_ON(sizeof(struct ath10k_skb_cb) >
64 IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
65 return (struct ath10k_skb_cb *)&IEEE80211_SKB_CB(skb)->driver_data;
68 static inline int ath10k_skb_map(struct device *dev, struct sk_buff *skb)
70 if (ATH10K_SKB_CB(skb)->is_mapped)
73 ATH10K_SKB_CB(skb)->paddr = dma_map_single(dev, skb->data, skb->len,
76 if (unlikely(dma_mapping_error(dev, ATH10K_SKB_CB(skb)->paddr)))
79 ATH10K_SKB_CB(skb)->is_mapped = true;
83 static inline int ath10k_skb_unmap(struct device *dev, struct sk_buff *skb)
85 if (!ATH10K_SKB_CB(skb)->is_mapped)
88 dma_unmap_single(dev, ATH10K_SKB_CB(skb)->paddr, skb->len,
90 ATH10K_SKB_CB(skb)->is_mapped = false;
94 static inline u32 host_interest_item_address(u32 item_offset)
96 return QCA988X_HOST_INTEREST_ADDRESS + item_offset;
104 enum ath10k_htc_ep_id eid;
105 struct completion service_ready;
106 struct completion unified_ready;
107 wait_queue_head_t tx_credits_wq;
110 struct ath10k_peer_stat {
111 u8 peer_macaddr[ETH_ALEN];
116 struct ath10k_target_stats {
142 u32 sw_retry_failure;
143 u32 illgl_rate_phy_err;
144 u32 pdev_cont_xretry;
151 s32 mid_ppdu_route_change;
170 struct ath10k_peer_stat peer_stat[TARGET_NUM_PEERS];
172 /* TODO: Beacon filter stats */
176 #define ATH10K_MAX_NUM_PEER_IDS (1 << 11) /* htt rx_desc limit */
179 struct list_head list;
182 DECLARE_BITMAP(peer_ids, ATH10K_MAX_NUM_PEER_IDS);
183 struct ieee80211_key_conf *keys[WMI_MAX_KEY_INDEX + 1];
186 #define ATH10K_VDEV_SETUP_TIMEOUT_HZ (5*HZ)
190 enum wmi_vdev_type vdev_type;
191 enum wmi_vdev_subtype vdev_subtype;
194 struct sk_buff *beacon;
197 struct ieee80211_vif *vif;
199 struct ieee80211_key_conf *wep_keys[WMI_MAX_KEY_INDEX + 1];
200 u8 def_wep_key_index;
210 /* 127 stations; wmi limit */
214 u8 ssid[IEEE80211_MAX_SSID_LEN];
216 /* P2P_IE with NoA attribute for P2P_GO case */
226 struct ath10k_vif_iter {
228 struct ath10k_vif *arvif;
231 struct ath10k_debug {
232 struct dentry *debugfs_phy;
234 struct ath10k_target_stats target_stats;
235 u32 wmi_service_bitmap[WMI_SERVICE_BM_SIZE];
237 struct completion event_stats_compl;
239 unsigned long htt_stats_mask;
240 struct delayed_work htt_stats_dwork;
244 ATH10K_STATE_OFF = 0,
247 /* When doing firmware recovery the device is first powered down.
248 * mac80211 is supposed to call in to start() hook later on. It is
249 * however possible that driver unloading and firmware crash overlap.
250 * mac80211 can wait on conf_mutex in stop() while the device is
251 * stopped in ath10k_core_restart() work holding conf_mutex. The state
252 * RESTARTED means that the device is up and mac80211 has started hw
253 * reconfiguration. Once mac80211 is done with the reconfiguration we
254 * set the state to STATE_ON in restart_complete(). */
255 ATH10K_STATE_RESTARTING,
256 ATH10K_STATE_RESTARTED,
258 /* The device has crashed while restarting hw. This state is like ON
259 * but commands are blocked in HTC and -ECOMM response is given. This
260 * prevents completion timeouts and makes the driver more responsive to
261 * userspace commands. This is also prevents recursive recovery. */
265 enum ath10k_fw_features {
266 /* wmi_mgmt_rx_hdr contains extra RSSI information */
267 ATH10K_FW_FEATURE_EXT_WMI_MGMT_RX = 0,
270 ATH10K_FW_FEATURE_COUNT,
274 struct ath_common ath_common;
275 struct ieee80211_hw *hw;
277 u8 mac_addr[ETH_ALEN];
282 u32 fw_version_minor;
283 u16 fw_version_release;
284 u16 fw_version_build;
292 DECLARE_BITMAP(fw_features, ATH10K_FW_FEATURE_COUNT);
294 struct targetdef *targetdef;
295 struct hostdef *hostdef;
301 const struct ath10k_hif_ops *ops;
304 wait_queue_head_t event_queue;
305 bool is_target_paused;
307 struct ath10k_bmi bmi;
308 struct ath10k_wmi wmi;
309 struct ath10k_htc htc;
310 struct ath10k_htt htt;
312 struct ath10k_hw_params {
317 struct ath10k_hw_params_fw {
325 const struct firmware *board_data;
326 const struct firmware *otp;
327 const struct firmware *firmware;
330 struct completion started;
331 struct completion completed;
332 struct completion on_channel;
333 struct timer_list timeout;
342 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
345 /* should never be NULL; needed for regular htt rx */
346 struct ieee80211_channel *rx_channel;
348 /* valid during scan; needed for mgmt rx during scan */
349 struct ieee80211_channel *scan_channel;
353 bool monitor_enabled;
354 bool monitor_present;
355 unsigned int filter_flags;
357 struct wmi_pdev_set_wmm_params_arg wmm_params;
358 struct completion install_key_done;
360 struct completion vdev_setup_done;
362 struct workqueue_struct *workqueue;
364 /* prevents concurrent FW reconfiguration */
365 struct mutex conf_mutex;
367 /* protects shared structure data */
368 spinlock_t data_lock;
370 struct list_head peers;
371 wait_queue_head_t peer_mapping_wq;
373 struct work_struct offchan_tx_work;
374 struct sk_buff_head offchan_tx_queue;
375 struct completion offchan_tx_completed;
376 struct sk_buff *offchan_tx_skb;
378 enum ath10k_state state;
380 struct work_struct restart_work;
382 /* cycle count is reported twice for each visited channel during scan.
383 * access protected by data_lock */
384 u32 survey_last_rx_clear_count;
385 u32 survey_last_cycle_count;
386 struct survey_info survey[ATH10K_NUM_CHANS];
388 #ifdef CONFIG_ATH10K_DEBUGFS
389 struct ath10k_debug debug;
393 struct ath10k *ath10k_core_create(void *hif_priv, struct device *dev,
394 const struct ath10k_hif_ops *hif_ops);
395 void ath10k_core_destroy(struct ath10k *ar);
397 int ath10k_core_start(struct ath10k *ar);
398 void ath10k_core_stop(struct ath10k *ar);
399 int ath10k_core_register(struct ath10k *ar, u32 chip_id);
400 void ath10k_core_unregister(struct ath10k *ar);
402 #endif /* _CORE_H_ */