LXR linux/drivers/net/wireless/iwlwifi/mvm/mvm.h

   1/******************************************************************************
   2 *
   3 * This file is provided under a dual BSD/GPLv2 license.  When using or
   4 * redistributing this file, you may do so under either license.
   5 *
   6 * GPL LICENSE SUMMARY
   7 *
   8 * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
   9 *
  10 * This program is free software; you can redistribute it and/or modify
  11 * it under the terms of version 2 of the GNU General Public License as
  12 * published by the Free Software Foundation.
  13 *
  14 * This program is distributed in the hope that it will be useful, but
  15 * WITHOUT ANY WARRANTY; without even the implied warranty of
  16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17 * General Public License for more details.
  18 *
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  20 * along with this program; if not, write to the Free Software
  21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  22 * USA
  23 *
  24 * The full GNU General Public License is included in this distribution
  25 * in the file called COPYING.
  26 *
  27 * Contact Information:
  28 *  Intel Linux Wireless <ilw@linux.intel.com>
  29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  30 *
  31 * BSD LICENSE
  32 *
  33 * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
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  60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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  62 *****************************************************************************/
  63
  64#ifndef __IWL_MVM_H__
  65#define __IWL_MVM_H__
  66
  67#include <linux/list.h>
  68#include <linux/spinlock.h>
  69#include <linux/leds.h>
  70#include <linux/in6.h>
  71
  72#include "iwl-op-mode.h"
  73#include "iwl-trans.h"
  74#include "iwl-notif-wait.h"
  75#include "iwl-eeprom-parse.h"
  76#include "iwl-test.h"
  77#include "iwl-trans.h"
  78#include "sta.h"
  79#include "fw-api.h"
  80
  81#define IWL_INVALID_MAC80211_QUEUE      0xff
  82#define IWL_MVM_MAX_ADDRESSES           5
  83/* RSSI offset for WkP */
  84#define IWL_RSSI_OFFSET 50
  85
  86enum iwl_mvm_tx_fifo {
  87        IWL_MVM_TX_FIFO_BK = 0,
  88        IWL_MVM_TX_FIFO_BE,
  89        IWL_MVM_TX_FIFO_VI,
  90        IWL_MVM_TX_FIFO_VO,
  91};
  92
  93extern struct ieee80211_ops iwl_mvm_hw_ops;
  94/**
  95 * struct iwl_mvm_mod_params - module parameters for iwlmvm
  96 * @init_dbg: if true, then the NIC won't be stopped if the INIT fw asserted.
  97 *      We will register to mac80211 to have testmode working. The NIC must not
  98 *      be up'ed after the INIT fw asserted. This is useful to be able to use
  99 *      proprietary tools over testmode to debug the INIT fw.
 100 * @power_scheme: CAM(Continuous Active Mode)-1, BPS(Balanced Power
 101 *      Save)-2(default), LP(Low Power)-3
 102 */
 103struct iwl_mvm_mod_params {
 104        bool init_dbg;
 105        int power_scheme;
 106};
 107extern struct iwl_mvm_mod_params iwlmvm_mod_params;
 108
 109struct iwl_mvm_phy_ctxt {
 110        u16 id;
 111        u16 color;
 112
 113        /*
 114         * TODO: This should probably be removed. Currently here only for rate
 115         * scaling algorithm
 116         */
 117        struct ieee80211_channel *channel;
 118};
 119
 120struct iwl_mvm_time_event_data {
 121        struct ieee80211_vif *vif;
 122        struct list_head list;
 123        unsigned long end_jiffies;
 124        u32 duration;
 125        bool running;
 126        u32 uid;
 127
 128        /*
 129         * The access to the 'id' field must be done when the
 130         * mvm->time_event_lock is held, as it value is used to indicate
 131         * if the te is in the time event list or not (when id == TE_MAX)
 132         */
 133        u32 id;
 134};
 135
 136 /* Power management */
 137
 138/**
 139 * enum iwl_power_scheme
 140 * @IWL_POWER_LEVEL_CAM - Continuously Active Mode
 141 * @IWL_POWER_LEVEL_BPS - Balanced Power Save (default)
 142 * @IWL_POWER_LEVEL_LP  - Low Power
 143 */
 144enum iwl_power_scheme {
 145        IWL_POWER_SCHEME_CAM = 1,
 146        IWL_POWER_SCHEME_BPS,
 147        IWL_POWER_SCHEME_LP
 148};
 149
 150#define IWL_CONN_MAX_LISTEN_INTERVAL    70
 151
 152/**
 153 * struct iwl_mvm_vif - data per Virtual Interface, it is a MAC context
 154 * @id: between 0 and 3
 155 * @color: to solve races upon MAC addition and removal
 156 * @ap_sta_id: the sta_id of the AP - valid only if VIF type is STA
 157 * @uploaded: indicates the MAC context has been added to the device
 158 * @ap_active: indicates that ap context is configured, and that the interface
 159 *  should get quota etc.
 160 * @monitor_active: indicates that monitor context is configured, and that the
 161 * interface should get quota etc.
 162 * @queue_params: QoS params for this MAC
 163 * @bcast_sta: station used for broadcast packets. Used by the following
 164 *  vifs: P2P_DEVICE, GO and AP.
 165 * @beacon_skb: the skb used to hold the AP/GO beacon template
 166 */
 167struct iwl_mvm_vif {
 168        u16 id;
 169        u16 color;
 170        u8 ap_sta_id;
 171
 172        bool uploaded;
 173        bool ap_active;
 174        bool monitor_active;
 175
 176        u32 ap_beacon_time;
 177
 178        enum iwl_tsf_id tsf_id;
 179
 180        /*
 181         * QoS data from mac80211, need to store this here
 182         * as mac80211 has a separate callback but we need
 183         * to have the data for the MAC context
 184         */
 185        struct ieee80211_tx_queue_params queue_params[IEEE80211_NUM_ACS];
 186        struct iwl_mvm_time_event_data time_event_data;
 187
 188        struct iwl_mvm_int_sta bcast_sta;
 189
 190        /*
 191         * Assigned while mac80211 has the interface in a channel context,
 192         * or, for P2P Device, while it exists.
 193         */
 194        struct iwl_mvm_phy_ctxt *phy_ctxt;
 195
 196#ifdef CONFIG_PM_SLEEP
 197        /* WoWLAN GTK rekey data */
 198        struct {
 199                u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
 200                __le64 replay_ctr;
 201                bool valid;
 202        } rekey_data;
 203
 204        int tx_key_idx;
 205
 206#if IS_ENABLED(CONFIG_IPV6)
 207        /* IPv6 addresses for WoWLAN */
 208        struct in6_addr target_ipv6_addrs[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS];
 209        int num_target_ipv6_addrs;
 210#endif
 211#endif
 212
 213#ifdef CONFIG_IWLWIFI_DEBUGFS
 214        struct dentry *dbgfs_dir;
 215        struct dentry *dbgfs_slink;
 216        void *dbgfs_data;
 217#endif
 218};
 219
 220static inline struct iwl_mvm_vif *
 221iwl_mvm_vif_from_mac80211(struct ieee80211_vif *vif)
 222{
 223        return (void *)vif->drv_priv;
 224}
 225
 226enum iwl_mvm_status {
 227        IWL_MVM_STATUS_HW_RFKILL,
 228        IWL_MVM_STATUS_ROC_RUNNING,
 229        IWL_MVM_STATUS_IN_HW_RESTART,
 230};
 231
 232enum iwl_scan_status {
 233        IWL_MVM_SCAN_NONE,
 234        IWL_MVM_SCAN_OS,
 235};
 236
 237/**
 238 * struct iwl_nvm_section - describes an NVM section in memory.
 239 *
 240 * This struct holds an NVM section read from the NIC using NVM_ACCESS_CMD,
 241 * and saved for later use by the driver. Not all NVM sections are saved
 242 * this way, only the needed ones.
 243 */
 244struct iwl_nvm_section {
 245        u16 length;
 246        const u8 *data;
 247};
 248
 249struct iwl_mvm {
 250        /* for logger access */
 251        struct device *dev;
 252
 253        struct iwl_trans *trans;
 254        const struct iwl_fw *fw;
 255        const struct iwl_cfg *cfg;
 256        struct iwl_phy_db *phy_db;
 257        struct ieee80211_hw *hw;
 258
 259        /* for protecting access to iwl_mvm */
 260        struct mutex mutex;
 261        struct list_head async_handlers_list;
 262        spinlock_t async_handlers_lock;
 263        struct work_struct async_handlers_wk;
 264
 265        struct work_struct roc_done_wk;
 266
 267        unsigned long status;
 268
 269        enum iwl_ucode_type cur_ucode;
 270        bool ucode_loaded;
 271        bool init_ucode_run;
 272        u32 error_event_table;
 273        u32 log_event_table;
 274
 275        u32 ampdu_ref;
 276
 277        struct iwl_notif_wait_data notif_wait;
 278
 279        unsigned long transport_queue_stop;
 280        u8 queue_to_mac80211[IWL_MAX_HW_QUEUES];
 281        atomic_t queue_stop_count[IWL_MAX_HW_QUEUES];
 282
 283        struct iwl_nvm_data *nvm_data;
 284        /* NVM sections */
 285        struct iwl_nvm_section nvm_sections[NVM_NUM_OF_SECTIONS];
 286
 287        /* EEPROM MAC addresses */
 288        struct mac_address addresses[IWL_MVM_MAX_ADDRESSES];
 289
 290        /* data related to data path */
 291        struct iwl_rx_phy_info last_phy_info;
 292        struct ieee80211_sta __rcu *fw_id_to_mac_id[IWL_MVM_STATION_COUNT];
 293        struct work_struct sta_drained_wk;
 294        unsigned long sta_drained[BITS_TO_LONGS(IWL_MVM_STATION_COUNT)];
 295        atomic_t pending_frames[IWL_MVM_STATION_COUNT];
 296
 297        /* configured by mac80211 */
 298        u32 rts_threshold;
 299
 300        /* Scan status, cmd (pre-allocated) and auxiliary station */
 301        enum iwl_scan_status scan_status;
 302        struct iwl_scan_cmd *scan_cmd;
 303
 304        /* Internal station */
 305        struct iwl_mvm_int_sta aux_sta;
 306
 307        u8 scan_last_antenna_idx; /* to toggle TX between antennas */
 308        u8 mgmt_last_antenna_idx;
 309
 310#ifdef CONFIG_IWLWIFI_DEBUGFS
 311        struct dentry *debugfs_dir;
 312        u32 dbgfs_sram_offset, dbgfs_sram_len;
 313        bool prevent_power_down_d3;
 314#endif
 315
 316        struct iwl_mvm_phy_ctxt phy_ctxt_roc;
 317
 318        struct list_head time_event_list;
 319        spinlock_t time_event_lock;
 320
 321        /*
 322         * A bitmap indicating the index of the key in use. The firmware
 323         * can hold 16 keys at most. Reflect this fact.
 324         */
 325        unsigned long fw_key_table[BITS_TO_LONGS(STA_KEY_MAX_NUM)];
 326
 327        /*
 328         * This counter of created interfaces is referenced only in conjunction
 329         * with FW limitation related to power management. Currently PM is
 330         * supported only on a single interface.
 331         * IMPORTANT: this variable counts all interfaces except P2P device.
 332         */
 333        u8 vif_count;
 334
 335        struct led_classdev led;
 336
 337        struct ieee80211_vif *p2p_device_vif;
 338
 339#ifdef CONFIG_PM_SLEEP
 340        int gtk_ivlen, gtk_icvlen, ptk_ivlen, ptk_icvlen;
 341#endif
 342
 343        /* BT-Coex */
 344        u8 bt_kill_msk;
 345        struct iwl_bt_coex_profile_notif last_bt_notif;
 346};
 347
 348/* Extract MVM priv from op_mode and _hw */
 349#define IWL_OP_MODE_GET_MVM(_iwl_op_mode)               \
 350        ((struct iwl_mvm *)(_iwl_op_mode)->op_mode_specific)
 351
 352#define IWL_MAC80211_GET_MVM(_hw)                       \
 353        IWL_OP_MODE_GET_MVM((struct iwl_op_mode *)((_hw)->priv))
 354
 355extern const u8 iwl_mvm_ac_to_tx_fifo[];
 356
 357struct iwl_rate_info {
 358        u8 plcp;        /* uCode API:  IWL_RATE_6M_PLCP, etc. */
 359        u8 plcp_siso;   /* uCode API:  IWL_RATE_SISO_6M_PLCP, etc. */
 360        u8 plcp_mimo2;  /* uCode API:  IWL_RATE_MIMO2_6M_PLCP, etc. */
 361        u8 plcp_mimo3;  /* uCode API:  IWL_RATE_MIMO3_6M_PLCP, etc. */
 362        u8 ieee;        /* MAC header:  IWL_RATE_6M_IEEE, etc. */
 363};
 364
 365/******************
 366 * MVM Methods
 367 ******************/
 368/* uCode */
 369int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm);
 370
 371/* Utils */
 372int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags,
 373                                        enum ieee80211_band band);
 374u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx);
 375void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm);
 376u8 first_antenna(u8 mask);
 377u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx);
 378
 379/* Tx / Host Commands */
 380int __must_check iwl_mvm_send_cmd(struct iwl_mvm *mvm,
 381                                  struct iwl_host_cmd *cmd);
 382int __must_check iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u8 id,
 383                                      u32 flags, u16 len, const void *data);
 384int __must_check iwl_mvm_send_cmd_status(struct iwl_mvm *mvm,
 385                                         struct iwl_host_cmd *cmd,
 386                                         u32 *status);
 387int __must_check iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u8 id,
 388                                             u16 len, const void *data,
 389                                             u32 *status);
 390int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
 391                   struct ieee80211_sta *sta);
 392int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb);
 393#ifdef CONFIG_IWLWIFI_DEBUG
 394const char *iwl_mvm_get_tx_fail_reason(u32 status);
 395#else
 396static inline const char *iwl_mvm_get_tx_fail_reason(u32 status) { return ""; }
 397#endif
 398int iwl_mvm_flush_tx_path(struct iwl_mvm *mvm, u32 tfd_msk, bool sync);
 399void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm);
 400
 401/* Statistics */
 402int iwl_mvm_rx_reply_statistics(struct iwl_mvm *mvm,
 403                                struct iwl_rx_cmd_buffer *rxb,
 404                                struct iwl_device_cmd *cmd);
 405int iwl_mvm_rx_statistics(struct iwl_mvm *mvm,
 406                          struct iwl_rx_cmd_buffer *rxb,
 407                          struct iwl_device_cmd *cmd);
 408
 409/* NVM */
 410int iwl_nvm_init(struct iwl_mvm *mvm);
 411
 412int iwl_mvm_up(struct iwl_mvm *mvm);
 413int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm);
 414
 415int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm);
 416
 417/*
 418 * FW notifications / CMD responses handlers
 419 * Convention: iwl_mvm_rx_<NAME OF THE CMD>
 420 */
 421int iwl_mvm_rx_rx_phy_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 422                          struct iwl_device_cmd *cmd);
 423int iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 424                       struct iwl_device_cmd *cmd);
 425int iwl_mvm_rx_tx_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 426                      struct iwl_device_cmd *cmd);
 427int iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 428                        struct iwl_device_cmd *cmd);
 429int iwl_mvm_rx_radio_ver(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 430                         struct iwl_device_cmd *cmd);
 431int iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 432                          struct iwl_device_cmd *cmd);
 433int iwl_mvm_rx_card_state_notif(struct iwl_mvm *mvm,
 434                                struct iwl_rx_cmd_buffer *rxb,
 435                                struct iwl_device_cmd *cmd);
 436int iwl_mvm_rx_radio_ver(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 437                         struct iwl_device_cmd *cmd);
 438
 439/* MVM PHY */
 440int iwl_mvm_phy_ctxt_add(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
 441                         struct cfg80211_chan_def *chandef,
 442                         u8 chains_static, u8 chains_dynamic);
 443int iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
 444                             struct cfg80211_chan_def *chandef,
 445                             u8 chains_static, u8 chains_dynamic);
 446void iwl_mvm_phy_ctxt_remove(struct iwl_mvm *mvm,
 447                             struct iwl_mvm_phy_ctxt *ctxt);
 448
 449/* MAC (virtual interface) programming */
 450int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 451void iwl_mvm_mac_ctxt_release(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 452int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 453int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 454int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 455u32 iwl_mvm_mac_get_queues_mask(struct iwl_mvm *mvm,
 456                                struct ieee80211_vif *vif);
 457int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm,
 458                                    struct ieee80211_vif *vif);
 459int iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm,
 460                            struct iwl_rx_cmd_buffer *rxb,
 461                            struct iwl_device_cmd *cmd);
 462
 463/* Bindings */
 464int iwl_mvm_binding_add_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 465int iwl_mvm_binding_remove_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 466
 467/* Quota management */
 468int iwl_mvm_update_quotas(struct iwl_mvm *mvm, struct ieee80211_vif *newvif);
 469
 470/* Scanning */
 471int iwl_mvm_scan_request(struct iwl_mvm *mvm,
 472                         struct ieee80211_vif *vif,
 473                         struct cfg80211_scan_request *req);
 474int iwl_mvm_rx_scan_response(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 475                             struct iwl_device_cmd *cmd);
 476int iwl_mvm_rx_scan_complete(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 477                             struct iwl_device_cmd *cmd);
 478void iwl_mvm_cancel_scan(struct iwl_mvm *mvm);
 479
 480/* MVM debugfs */
 481#ifdef CONFIG_IWLWIFI_DEBUGFS
 482int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir);
 483void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 484void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 485#else
 486static inline int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm,
 487                                         struct dentry *dbgfs_dir)
 488{
 489        return 0;
 490}
 491static inline void
 492iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 493{
 494}
 495static inline void
 496iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 497{
 498}
 499#endif /* CONFIG_IWLWIFI_DEBUGFS */
 500
 501/* rate scaling */
 502int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq,
 503                        u8 flags, bool init);
 504
 505/* power managment */
 506int iwl_mvm_power_update_mode(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 507int iwl_mvm_power_disable(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 508void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 509                             struct iwl_powertable_cmd *cmd);
 510
 511int iwl_mvm_leds_init(struct iwl_mvm *mvm);
 512void iwl_mvm_leds_exit(struct iwl_mvm *mvm);
 513
 514/* D3 (WoWLAN, NetDetect) */
 515int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan);
 516int iwl_mvm_resume(struct ieee80211_hw *hw);
 517void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled);
 518void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw,
 519                            struct ieee80211_vif *vif,
 520                            struct cfg80211_gtk_rekey_data *data);
 521void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
 522                              struct ieee80211_vif *vif,
 523                              struct inet6_dev *idev);
 524void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
 525                                     struct ieee80211_vif *vif, int idx);
 526
 527/* BT Coex */
 528int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm);
 529int iwl_send_bt_init_conf(struct iwl_mvm *mvm);
 530int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
 531                             struct iwl_rx_cmd_buffer *rxb,
 532                             struct iwl_device_cmd *cmd);
 533void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 534                           enum ieee80211_rssi_event rssi_event);
 535void iwl_mvm_bt_coex_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 536
 537#endif /* __IWL_MVM_H__ */
 538