drivers/net/wireless/ath/ath10k/core.h

   1 /*
   2  * Copyright (c) 2005-2011 Atheros Communications Inc.
   3  * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
   4  *
   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.
   8  *
   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.
  16  */
  17
  18 #ifndef _CORE_H_
  19 #define _CORE_H_
  20
  21 #include <linux/completion.h>
  22 #include <linux/if_ether.h>
  23 #include <linux/types.h>
  24 #include <linux/pci.h>
  25
  26 #include "htc.h"
  27 #include "hw.h"
  28 #include "targaddrs.h"
  29 #include "wmi.h"
  30 #include "../ath.h"
  31 #include "../regd.h"
  32
  33 #define MS(_v, _f) (((_v) & _f##_MASK) >> _f##_LSB)
  34 #define SM(_v, _f) (((_v) << _f##_LSB) & _f##_MASK)
  35 #define WO(_f)      ((_f##_OFFSET) >> 2)
  36
  37 #define ATH10K_SCAN_ID 0
  38 #define WMI_READY_TIMEOUT (5 * HZ)
  39 #define ATH10K_FLUSH_TIMEOUT_HZ (5*HZ)
  40
  41 /* Antenna noise floor */
  42 #define ATH10K_DEFAULT_NOISE_FLOOR -95
  43
  44 struct ath10k;
  45
  46 enum ath10k_bus {
  47         ATH10K_BUS_PCI,
  48 };
  49
  50 struct ath10k_skb_cb {
  51         dma_addr_t paddr;
  52         bool is_mapped;
  53         bool is_aborted;
  54
  55         struct {
  56                 u8 vdev_id;
  57                 u16 msdu_id;
  58                 u8 tid;
  59                 bool is_offchan;
  60                 bool is_conf;
  61                 bool discard;
  62                 bool no_ack;
  63                 u8 refcount;
  64                 struct sk_buff *txfrag;
  65                 struct sk_buff *msdu;
  66         } __packed htt;
  67
  68         /* 4 bytes left on 64bit arch */
  69 } __packed;
  70
  71 static inline struct ath10k_skb_cb *ATH10K_SKB_CB(struct sk_buff *skb)
  72 {
  73         BUILD_BUG_ON(sizeof(struct ath10k_skb_cb) >
  74                      IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
  75         return (struct ath10k_skb_cb *)&IEEE80211_SKB_CB(skb)->driver_data;
  76 }
  77
  78 static inline int ath10k_skb_map(struct device *dev, struct sk_buff *skb)
  79 {
  80         if (ATH10K_SKB_CB(skb)->is_mapped)
  81                 return -EINVAL;
  82
  83         ATH10K_SKB_CB(skb)->paddr = dma_map_single(dev, skb->data, skb->len,
  84                                                    DMA_TO_DEVICE);
  85
  86         if (unlikely(dma_mapping_error(dev, ATH10K_SKB_CB(skb)->paddr)))
  87                 return -EIO;
  88
  89         ATH10K_SKB_CB(skb)->is_mapped = true;
  90         return 0;
  91 }
  92
  93 static inline int ath10k_skb_unmap(struct device *dev, struct sk_buff *skb)
  94 {
  95         if (!ATH10K_SKB_CB(skb)->is_mapped)
  96                 return -EINVAL;
  97
  98         dma_unmap_single(dev, ATH10K_SKB_CB(skb)->paddr, skb->len,
  99                          DMA_TO_DEVICE);
 100         ATH10K_SKB_CB(skb)->is_mapped = false;
 101         return 0;
 102 }
 103
 104 static inline u32 host_interest_item_address(u32 item_offset)
 105 {
 106         return QCA988X_HOST_INTEREST_ADDRESS + item_offset;
 107 }
 108
 109 struct ath10k_bmi {
 110         bool done_sent;
 111 };
 112
 113 struct ath10k_wmi {
 114         enum ath10k_htc_ep_id eid;
 115         struct completion service_ready;
 116         struct completion unified_ready;
 117         atomic_t pending_tx_count;
 118         wait_queue_head_t wq;
 119
 120         struct sk_buff_head wmi_event_list;
 121         struct work_struct wmi_event_work;
 122 };
 123
 124 struct ath10k_peer_stat {
 125         u8 peer_macaddr[ETH_ALEN];
 126         u32 peer_rssi;
 127         u32 peer_tx_rate;
 128 };
 129
 130 struct ath10k_target_stats {
 131         /* PDEV stats */
 132         s32 ch_noise_floor;
 133         u32 tx_frame_count;
 134         u32 rx_frame_count;
 135         u32 rx_clear_count;
 136         u32 cycle_count;
 137         u32 phy_err_count;
 138         u32 chan_tx_power;
 139
 140         /* PDEV TX stats */
 141         s32 comp_queued;
 142         s32 comp_delivered;
 143         s32 msdu_enqued;
 144         s32 mpdu_enqued;
 145         s32 wmm_drop;
 146         s32 local_enqued;
 147         s32 local_freed;
 148         s32 hw_queued;
 149         s32 hw_reaped;
 150         s32 underrun;
 151         s32 tx_abort;
 152         s32 mpdus_requed;
 153         u32 tx_ko;
 154         u32 data_rc;
 155         u32 self_triggers;
 156         u32 sw_retry_failure;
 157         u32 illgl_rate_phy_err;
 158         u32 pdev_cont_xretry;
 159         u32 pdev_tx_timeout;
 160         u32 pdev_resets;
 161         u32 phy_underrun;
 162         u32 txop_ovf;
 163
 164         /* PDEV RX stats */
 165         s32 mid_ppdu_route_change;
 166         s32 status_rcvd;
 167         s32 r0_frags;
 168         s32 r1_frags;
 169         s32 r2_frags;
 170         s32 r3_frags;
 171         s32 htt_msdus;
 172         s32 htt_mpdus;
 173         s32 loc_msdus;
 174         s32 loc_mpdus;
 175         s32 oversize_amsdu;
 176         s32 phy_errs;
 177         s32 phy_err_drop;
 178         s32 mpdu_errs;
 179
 180         /* VDEV STATS */
 181
 182         /* PEER STATS */
 183         u8 peers;
 184         struct ath10k_peer_stat peer_stat[TARGET_NUM_PEERS];
 185
 186         /* TODO: Beacon filter stats */
 187
 188 };
 189
 190 #define ATH10K_MAX_NUM_PEER_IDS (1 << 11) /* htt rx_desc limit */
 191
 192 struct ath10k_peer {
 193         struct list_head list;
 194         int vdev_id;
 195         u8 addr[ETH_ALEN];
 196         DECLARE_BITMAP(peer_ids, ATH10K_MAX_NUM_PEER_IDS);
 197         struct ieee80211_key_conf *keys[WMI_MAX_KEY_INDEX + 1];
 198 };
 199
 200 #define ATH10K_VDEV_SETUP_TIMEOUT_HZ (5*HZ)
 201
 202 struct ath10k_vif {
 203         u32 vdev_id;
 204         enum wmi_vdev_type vdev_type;
 205         enum wmi_vdev_subtype vdev_subtype;
 206         u32 beacon_interval;
 207         u32 dtim_period;
 208
 209         struct ath10k *ar;
 210         struct ieee80211_vif *vif;
 211
 212         struct ieee80211_key_conf *wep_keys[WMI_MAX_KEY_INDEX + 1];
 213         u8 def_wep_key_index;
 214
 215         u16 tx_seq_no;
 216
 217         union {
 218                 struct {
 219                         u8 bssid[ETH_ALEN];
 220                         u32 uapsd;
 221                 } sta;
 222                 struct {
 223                         /* 127 stations; wmi limit */
 224                         u8 tim_bitmap[16];
 225                         u8 tim_len;
 226                         u32 ssid_len;
 227                         u8 ssid[IEEE80211_MAX_SSID_LEN];
 228                         bool hidden_ssid;
 229                         /* P2P_IE with NoA attribute for P2P_GO case */
 230                         u32 noa_len;
 231                         u8 *noa_data;
 232                 } ap;
 233                 struct {
 234                         u8 bssid[ETH_ALEN];
 235                 } ibss;
 236         } u;
 237 };
 238
 239 struct ath10k_vif_iter {
 240         u32 vdev_id;
 241         struct ath10k_vif *arvif;
 242 };
 243
 244 struct ath10k_debug {
 245         struct dentry *debugfs_phy;
 246
 247         struct ath10k_target_stats target_stats;
 248         u32 wmi_service_bitmap[WMI_SERVICE_BM_SIZE];
 249
 250         struct completion event_stats_compl;
 251 };
 252
 253 struct ath10k {
 254         struct ath_common ath_common;
 255         struct ieee80211_hw *hw;
 256         struct device *dev;
 257         u8 mac_addr[ETH_ALEN];
 258
 259         u32 target_version;
 260         u8 fw_version_major;
 261         u32 fw_version_minor;
 262         u16 fw_version_release;
 263         u16 fw_version_build;
 264         u32 phy_capability;
 265         u32 hw_min_tx_power;
 266         u32 hw_max_tx_power;
 267         u32 ht_cap_info;
 268         u32 vht_cap_info;
 269
 270         struct targetdef *targetdef;
 271         struct hostdef *hostdef;
 272
 273         bool p2p;
 274
 275         struct {
 276                 void *priv;
 277                 enum ath10k_bus bus;
 278                 const struct ath10k_hif_ops *ops;
 279         } hif;
 280
 281         struct ath10k_wmi wmi;
 282
 283         wait_queue_head_t event_queue;
 284         bool is_target_paused;
 285
 286         struct ath10k_bmi bmi;
 287
 288         struct ath10k_htc *htc;
 289         struct ath10k_htt *htt;
 290
 291         struct ath10k_hw_params {
 292                 u32 id;
 293                 const char *name;
 294                 u32 patch_load_addr;
 295
 296                 struct ath10k_hw_params_fw {
 297                         const char *dir;
 298                         const char *fw;
 299                         const char *otp;
 300                         const char *board;
 301                 } fw;
 302         } hw_params;
 303
 304         struct {
 305                 struct completion started;
 306                 struct completion completed;
 307                 struct completion on_channel;
 308                 struct timer_list timeout;
 309                 bool is_roc;
 310                 bool in_progress;
 311                 bool aborting;
 312                 int vdev_id;
 313                 int roc_freq;
 314         } scan;
 315
 316         struct {
 317                 struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
 318         } mac;
 319
 320         /* should never be NULL; needed for regular htt rx */
 321         struct ieee80211_channel *rx_channel;
 322
 323         /* valid during scan; needed for mgmt rx during scan */
 324         struct ieee80211_channel *scan_channel;
 325
 326         int free_vdev_map;
 327         int monitor_vdev_id;
 328         bool monitor_enabled;
 329         bool monitor_present;
 330         unsigned int filter_flags;
 331
 332         struct wmi_pdev_set_wmm_params_arg wmm_params;
 333         struct completion install_key_done;
 334
 335         struct completion vdev_setup_done;
 336
 337         struct workqueue_struct *workqueue;
 338
 339         /* prevents concurrent FW reconfiguration */
 340         struct mutex conf_mutex;
 341
 342         /* protects shared structure data */
 343         spinlock_t data_lock;
 344
 345         struct list_head peers;
 346         wait_queue_head_t peer_mapping_wq;
 347
 348         struct work_struct offchan_tx_work;
 349         struct sk_buff_head offchan_tx_queue;
 350         struct completion offchan_tx_completed;
 351         struct sk_buff *offchan_tx_skb;
 352
 353 #ifdef CONFIG_ATH10K_DEBUGFS
 354         struct ath10k_debug debug;
 355 #endif
 356 };
 357
 358 struct ath10k *ath10k_core_create(void *hif_priv, struct device *dev,
 359                                   enum ath10k_bus bus,
 360                                   const struct ath10k_hif_ops *hif_ops);
 361 void ath10k_core_destroy(struct ath10k *ar);
 362
 363 int ath10k_core_register(struct ath10k *ar);
 364 void ath10k_core_unregister(struct ath10k *ar);
 365
 366 int ath10k_core_target_suspend(struct ath10k *ar);
 367 int ath10k_core_target_resume(struct ath10k *ar);
 368
 369 #endif /* _CORE_H_ */