/* * Copyright (c) 2005-2011 Atheros Communications Inc. * Copyright (c) 2011-2013 Qualcomm Atheros, Inc. * * Permission to use, copy, modify, and/or distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #ifndef _CORE_H_ #define _CORE_H_ #include #include #include #include #include "htt.h" #include "htc.h" #include "hw.h" #include "targaddrs.h" #include "wmi.h" #include "../ath.h" #include "../regd.h" #include "../dfs_pattern_detector.h" #define MS(_v, _f) (((_v) & _f##_MASK) >> _f##_LSB) #define SM(_v, _f) (((_v) << _f##_LSB) & _f##_MASK) #define WO(_f) ((_f##_OFFSET) >> 2) #define ATH10K_SCAN_ID 0 #define WMI_READY_TIMEOUT (5 * HZ) #define ATH10K_FLUSH_TIMEOUT_HZ (5*HZ) #define ATH10K_NUM_CHANS 38 /* Antenna noise floor */ #define ATH10K_DEFAULT_NOISE_FLOOR -95 #define ATH10K_MAX_NUM_MGMT_PENDING 128 struct ath10k; struct ath10k_skb_cb { dma_addr_t paddr; bool is_mapped; bool is_aborted; u8 vdev_id; struct { u8 tid; bool is_offchan; u8 frag_len; u8 pad_len; } __packed htt; } __packed; static inline struct ath10k_skb_cb *ATH10K_SKB_CB(struct sk_buff *skb) { BUILD_BUG_ON(sizeof(struct ath10k_skb_cb) > IEEE80211_TX_INFO_DRIVER_DATA_SIZE); return (struct ath10k_skb_cb *)&IEEE80211_SKB_CB(skb)->driver_data; } static inline int ath10k_skb_map(struct device *dev, struct sk_buff *skb) { if (ATH10K_SKB_CB(skb)->is_mapped) return -EINVAL; ATH10K_SKB_CB(skb)->paddr = dma_map_single(dev, skb->data, skb->len, DMA_TO_DEVICE); if (unlikely(dma_mapping_error(dev, ATH10K_SKB_CB(skb)->paddr))) return -EIO; ATH10K_SKB_CB(skb)->is_mapped = true; return 0; } static inline int ath10k_skb_unmap(struct device *dev, struct sk_buff *skb) { if (!ATH10K_SKB_CB(skb)->is_mapped) return -EINVAL; dma_unmap_single(dev, ATH10K_SKB_CB(skb)->paddr, skb->len, DMA_TO_DEVICE); ATH10K_SKB_CB(skb)->is_mapped = false; return 0; } static inline u32 host_interest_item_address(u32 item_offset) { return QCA988X_HOST_INTEREST_ADDRESS + item_offset; } struct ath10k_bmi { bool done_sent; }; #define ATH10K_MAX_MEM_REQS 16 struct ath10k_mem_chunk { void *vaddr; dma_addr_t paddr; u32 len; u32 req_id; }; struct ath10k_wmi { enum ath10k_htc_ep_id eid; struct completion service_ready; struct completion unified_ready; wait_queue_head_t tx_credits_wq; struct wmi_cmd_map *cmd; struct wmi_vdev_param_map *vdev_param; struct wmi_pdev_param_map *pdev_param; u32 num_mem_chunks; struct ath10k_mem_chunk mem_chunks[ATH10K_MAX_MEM_REQS]; }; struct ath10k_peer_stat { u8 peer_macaddr[ETH_ALEN]; u32 peer_rssi; u32 peer_tx_rate; }; struct ath10k_target_stats { /* PDEV stats */ s32 ch_noise_floor; u32 tx_frame_count; u32 rx_frame_count; u32 rx_clear_count; u32 cycle_count; u32 phy_err_count; u32 chan_tx_power; /* PDEV TX stats */ s32 comp_queued; s32 comp_delivered; s32 msdu_enqued; s32 mpdu_enqued; s32 wmm_drop; s32 local_enqued; s32 local_freed; s32 hw_queued; s32 hw_reaped; s32 underrun; s32 tx_abort; s32 mpdus_requed; u32 tx_ko; u32 data_rc; u32 self_triggers; u32 sw_retry_failure; u32 illgl_rate_phy_err; u32 pdev_cont_xretry; u32 pdev_tx_timeout; u32 pdev_resets; u32 phy_underrun; u32 txop_ovf; /* PDEV RX stats */ s32 mid_ppdu_route_change; s32 status_rcvd; s32 r0_frags; s32 r1_frags; s32 r2_frags; s32 r3_frags; s32 htt_msdus; s32 htt_mpdus; s32 loc_msdus; s32 loc_mpdus; s32 oversize_amsdu; s32 phy_errs; s32 phy_err_drop; s32 mpdu_errs; /* VDEV STATS */ /* PEER STATS */ u8 peers; struct ath10k_peer_stat peer_stat[TARGET_NUM_PEERS]; /* TODO: Beacon filter stats */ }; struct ath10k_dfs_stats { u32 phy_errors; u32 pulses_total; u32 pulses_detected; u32 pulses_discarded; u32 radar_detected; }; #define ATH10K_MAX_NUM_PEER_IDS (1 << 11) /* htt rx_desc limit */ struct ath10k_peer { struct list_head list; int vdev_id; u8 addr[ETH_ALEN]; DECLARE_BITMAP(peer_ids, ATH10K_MAX_NUM_PEER_IDS); struct ieee80211_key_conf *keys[WMI_MAX_KEY_INDEX + 1]; }; #define ATH10K_VDEV_SETUP_TIMEOUT_HZ (5*HZ) struct ath10k_vif { struct list_head list; u32 vdev_id; enum wmi_vdev_type vdev_type; enum wmi_vdev_subtype vdev_subtype; u32 beacon_interval; u32 dtim_period; struct sk_buff *beacon; struct ath10k *ar; struct ieee80211_vif *vif; struct work_struct wep_key_work; struct ieee80211_key_conf *wep_keys[WMI_MAX_KEY_INDEX + 1]; u8 def_wep_key_idx; u8 def_wep_key_newidx; u16 tx_seq_no; union { struct { u8 bssid[ETH_ALEN]; u32 uapsd; } sta; struct { /* 127 stations; wmi limit */ u8 tim_bitmap[16]; u8 tim_len; u32 ssid_len; u8 ssid[IEEE80211_MAX_SSID_LEN]; bool hidden_ssid; /* P2P_IE with NoA attribute for P2P_GO case */ u32 noa_len; u8 *noa_data; } ap; struct { u8 bssid[ETH_ALEN]; } ibss; } u; }; struct ath10k_vif_iter { u32 vdev_id; struct ath10k_vif *arvif; }; struct ath10k_debug { struct dentry *debugfs_phy; struct ath10k_target_stats target_stats; u32 wmi_service_bitmap[WMI_SERVICE_BM_SIZE]; struct completion event_stats_compl; unsigned long htt_stats_mask; struct delayed_work htt_stats_dwork; struct ath10k_dfs_stats dfs_stats; struct ath_dfs_pool_stats dfs_pool_stats; u32 fw_dbglog_mask; }; enum ath10k_state { ATH10K_STATE_OFF = 0, ATH10K_STATE_ON, /* When doing firmware recovery the device is first powered down. * mac80211 is supposed to call in to start() hook later on. It is * however possible that driver unloading and firmware crash overlap. * mac80211 can wait on conf_mutex in stop() while the device is * stopped in ath10k_core_restart() work holding conf_mutex. The state * RESTARTED means that the device is up and mac80211 has started hw * reconfiguration. Once mac80211 is done with the reconfiguration we * set the state to STATE_ON in restart_complete(). */ ATH10K_STATE_RESTARTING, ATH10K_STATE_RESTARTED, /* The device has crashed while restarting hw. This state is like ON * but commands are blocked in HTC and -ECOMM response is given. This * prevents completion timeouts and makes the driver more responsive to * userspace commands. This is also prevents recursive recovery. */ ATH10K_STATE_WEDGED, }; enum ath10k_fw_features { /* wmi_mgmt_rx_hdr contains extra RSSI information */ ATH10K_FW_FEATURE_EXT_WMI_MGMT_RX = 0, /* firmware from 10X branch */ ATH10K_FW_FEATURE_WMI_10X = 1, /* firmware support tx frame management over WMI, otherwise it's HTT */ ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX = 2, /* Firmware does not support P2P */ ATH10K_FW_FEATURE_NO_P2P = 3, /* keep last */ ATH10K_FW_FEATURE_COUNT, }; enum ath10k_dev_flags { /* Indicates that ath10k device is during CAC phase of DFS */ ATH10K_CAC_RUNNING, ATH10K_FLAG_FIRST_BOOT_DONE, }; struct ath10k { struct ath_common ath_common; struct ieee80211_hw *hw; struct device *dev; u8 mac_addr[ETH_ALEN]; u32 chip_id; u32 target_version; u8 fw_version_major; u32 fw_version_minor; u16 fw_version_release; u16 fw_version_build; u32 phy_capability; u32 hw_min_tx_power; u32 hw_max_tx_power; u32 ht_cap_info; u32 vht_cap_info; u32 num_rf_chains; DECLARE_BITMAP(fw_features, ATH10K_FW_FEATURE_COUNT); struct targetdef *targetdef; struct hostdef *hostdef; bool p2p; struct { void *priv; const struct ath10k_hif_ops *ops; } hif; wait_queue_head_t event_queue; bool is_target_paused; struct ath10k_bmi bmi; struct ath10k_wmi wmi; struct ath10k_htc htc; struct ath10k_htt htt; struct ath10k_hw_params { u32 id; const char *name; u32 patch_load_addr; struct ath10k_hw_params_fw { const char *dir; const char *fw; const char *otp; const char *board; } fw; } hw_params; const struct firmware *board; const void *board_data; size_t board_len; const struct firmware *otp; const void *otp_data; size_t otp_len; const struct firmware *firmware; const void *firmware_data; size_t firmware_len; int fw_api; struct { struct completion started; struct completion completed; struct completion on_channel; struct timer_list timeout; bool is_roc; bool in_progress; bool aborting; int vdev_id; int roc_freq; } scan; struct { struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS]; } mac; /* should never be NULL; needed for regular htt rx */ struct ieee80211_channel *rx_channel; /* valid during scan; needed for mgmt rx during scan */ struct ieee80211_channel *scan_channel; int free_vdev_map; int monitor_vdev_id; bool monitor_enabled; bool monitor_present; unsigned int filter_flags; unsigned long dev_flags; u32 dfs_block_radar_events; struct wmi_pdev_set_wmm_params_arg wmm_params; struct completion install_key_done; struct completion vdev_setup_done; struct workqueue_struct *workqueue; /* prevents concurrent FW reconfiguration */ struct mutex conf_mutex; /* protects shared structure data */ spinlock_t data_lock; struct list_head arvifs; struct list_head peers; wait_queue_head_t peer_mapping_wq; /* number of created peers; protected by data_lock */ int num_peers; struct work_struct offchan_tx_work; struct sk_buff_head offchan_tx_queue; struct completion offchan_tx_completed; struct sk_buff *offchan_tx_skb; struct work_struct wmi_mgmt_tx_work; struct sk_buff_head wmi_mgmt_tx_queue; enum ath10k_state state; struct work_struct restart_work; /* cycle count is reported twice for each visited channel during scan. * access protected by data_lock */ u32 survey_last_rx_clear_count; u32 survey_last_cycle_count; struct survey_info survey[ATH10K_NUM_CHANS]; struct dfs_pattern_detector *dfs_detector; #ifdef CONFIG_ATH10K_DEBUGFS struct ath10k_debug debug; #endif }; struct ath10k *ath10k_core_create(void *hif_priv, struct device *dev, const struct ath10k_hif_ops *hif_ops); void ath10k_core_destroy(struct ath10k *ar); int ath10k_core_start(struct ath10k *ar); void ath10k_core_stop(struct ath10k *ar); int ath10k_core_register(struct ath10k *ar, u32 chip_id); void ath10k_core_unregister(struct ath10k *ar); #endif /* _CORE_H_ */