1 /******************************************************************************
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.
8 * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
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.
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.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * The full GNU General Public License is included in this distribution
25 * in the file called COPYING.
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
33 * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
34 * All rights reserved.
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 *****************************************************************************/
67 #include <linux/list.h>
68 #include <linux/spinlock.h>
69 #include <linux/leds.h>
70 #include <linux/in6.h>
72 #include "iwl-op-mode.h"
73 #include "iwl-trans.h"
74 #include "iwl-notif-wait.h"
75 #include "iwl-eeprom-parse.h"
77 #include "iwl-trans.h"
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
86 enum iwl_mvm_tx_fifo {
87 IWL_MVM_TX_FIFO_BK = 0,
93 extern struct ieee80211_ops iwl_mvm_hw_ops;
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
103 struct iwl_mvm_mod_params {
107 extern struct iwl_mvm_mod_params iwlmvm_mod_params;
109 struct iwl_mvm_phy_ctxt {
115 * TODO: This should probably be removed. Currently here only for rate
118 struct ieee80211_channel *channel;
121 struct iwl_mvm_time_event_data {
122 struct ieee80211_vif *vif;
123 struct list_head list;
124 unsigned long end_jiffies;
130 * The access to the 'id' field must be done when the
131 * mvm->time_event_lock is held, as it value is used to indicate
132 * if the te is in the time event list or not (when id == TE_MAX)
137 /* Power management */
140 * enum iwl_power_scheme
141 * @IWL_POWER_LEVEL_CAM - Continuously Active Mode
142 * @IWL_POWER_LEVEL_BPS - Balanced Power Save (default)
143 * @IWL_POWER_LEVEL_LP - Low Power
145 enum iwl_power_scheme {
146 IWL_POWER_SCHEME_CAM = 1,
147 IWL_POWER_SCHEME_BPS,
151 #define IWL_CONN_MAX_LISTEN_INTERVAL 70
154 * struct iwl_mvm_vif - data per Virtual Interface, it is a MAC context
155 * @id: between 0 and 3
156 * @color: to solve races upon MAC addition and removal
157 * @ap_sta_id: the sta_id of the AP - valid only if VIF type is STA
158 * @uploaded: indicates the MAC context has been added to the device
159 * @ap_active: indicates that ap context is configured, and that the interface
160 * should get quota etc.
161 * @monitor_active: indicates that monitor context is configured, and that the
162 * interface should get quota etc.
163 * @queue_params: QoS params for this MAC
164 * @bcast_sta: station used for broadcast packets. Used by the following
165 * vifs: P2P_DEVICE, GO and AP.
166 * @beacon_skb: the skb used to hold the AP/GO beacon template
176 /* indicate whether beacon filtering is enabled */
181 enum iwl_tsf_id tsf_id;
184 * QoS data from mac80211, need to store this here
185 * as mac80211 has a separate callback but we need
186 * to have the data for the MAC context
188 struct ieee80211_tx_queue_params queue_params[IEEE80211_NUM_ACS];
189 struct iwl_mvm_time_event_data time_event_data;
191 struct iwl_mvm_int_sta bcast_sta;
194 * Assigned while mac80211 has the interface in a channel context,
195 * or, for P2P Device, while it exists.
197 struct iwl_mvm_phy_ctxt *phy_ctxt;
199 #ifdef CONFIG_PM_SLEEP
200 /* WoWLAN GTK rekey data */
202 u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
209 #if IS_ENABLED(CONFIG_IPV6)
210 /* IPv6 addresses for WoWLAN */
211 struct in6_addr target_ipv6_addrs[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS];
212 int num_target_ipv6_addrs;
216 #ifdef CONFIG_IWLWIFI_DEBUGFS
217 struct dentry *dbgfs_dir;
218 struct dentry *dbgfs_slink;
223 static inline struct iwl_mvm_vif *
224 iwl_mvm_vif_from_mac80211(struct ieee80211_vif *vif)
226 return (void *)vif->drv_priv;
229 enum iwl_mvm_status {
230 IWL_MVM_STATUS_HW_RFKILL,
231 IWL_MVM_STATUS_ROC_RUNNING,
232 IWL_MVM_STATUS_IN_HW_RESTART,
235 enum iwl_scan_status {
241 * struct iwl_nvm_section - describes an NVM section in memory.
243 * This struct holds an NVM section read from the NIC using NVM_ACCESS_CMD,
244 * and saved for later use by the driver. Not all NVM sections are saved
245 * this way, only the needed ones.
247 struct iwl_nvm_section {
253 /* for logger access */
256 struct iwl_trans *trans;
257 const struct iwl_fw *fw;
258 const struct iwl_cfg *cfg;
259 struct iwl_phy_db *phy_db;
260 struct ieee80211_hw *hw;
262 /* for protecting access to iwl_mvm */
264 struct list_head async_handlers_list;
265 spinlock_t async_handlers_lock;
266 struct work_struct async_handlers_wk;
268 struct work_struct roc_done_wk;
270 unsigned long status;
273 * for beacon filtering -
274 * currently only one interface can be supported
276 struct iwl_mvm_vif *bf_allowed_vif;
278 enum iwl_ucode_type cur_ucode;
281 u32 error_event_table;
286 struct iwl_notif_wait_data notif_wait;
288 unsigned long transport_queue_stop;
289 u8 queue_to_mac80211[IWL_MAX_HW_QUEUES];
290 atomic_t queue_stop_count[IWL_MAX_HW_QUEUES];
292 struct iwl_nvm_data *nvm_data;
294 struct iwl_nvm_section nvm_sections[NVM_NUM_OF_SECTIONS];
296 /* EEPROM MAC addresses */
297 struct mac_address addresses[IWL_MVM_MAX_ADDRESSES];
299 /* data related to data path */
300 struct iwl_rx_phy_info last_phy_info;
301 struct ieee80211_sta __rcu *fw_id_to_mac_id[IWL_MVM_STATION_COUNT];
302 struct work_struct sta_drained_wk;
303 unsigned long sta_drained[BITS_TO_LONGS(IWL_MVM_STATION_COUNT)];
304 atomic_t pending_frames[IWL_MVM_STATION_COUNT];
306 /* configured by mac80211 */
309 /* Scan status, cmd (pre-allocated) and auxiliary station */
310 enum iwl_scan_status scan_status;
311 struct iwl_scan_cmd *scan_cmd;
313 /* Internal station */
314 struct iwl_mvm_int_sta aux_sta;
316 u8 scan_last_antenna_idx; /* to toggle TX between antennas */
317 u8 mgmt_last_antenna_idx;
319 #ifdef CONFIG_IWLWIFI_DEBUGFS
320 struct dentry *debugfs_dir;
321 u32 dbgfs_sram_offset, dbgfs_sram_len;
322 bool prevent_power_down_d3;
325 struct iwl_mvm_phy_ctxt phy_ctxts[NUM_PHY_CTX];
327 struct list_head time_event_list;
328 spinlock_t time_event_lock;
331 * A bitmap indicating the index of the key in use. The firmware
332 * can hold 16 keys at most. Reflect this fact.
334 unsigned long fw_key_table[BITS_TO_LONGS(STA_KEY_MAX_NUM)];
337 * This counter of created interfaces is referenced only in conjunction
338 * with FW limitation related to power management. Currently PM is
339 * supported only on a single interface.
340 * IMPORTANT: this variable counts all interfaces except P2P device.
344 struct led_classdev led;
346 struct ieee80211_vif *p2p_device_vif;
348 #ifdef CONFIG_PM_SLEEP
349 int gtk_ivlen, gtk_icvlen, ptk_ivlen, ptk_icvlen;
350 #ifdef CONFIG_IWLWIFI_DEBUGFS
351 bool store_d3_resume_sram;
352 void *d3_resume_sram;
358 struct iwl_bt_coex_profile_notif last_bt_notif;
361 /* Extract MVM priv from op_mode and _hw */
362 #define IWL_OP_MODE_GET_MVM(_iwl_op_mode) \
363 ((struct iwl_mvm *)(_iwl_op_mode)->op_mode_specific)
365 #define IWL_MAC80211_GET_MVM(_hw) \
366 IWL_OP_MODE_GET_MVM((struct iwl_op_mode *)((_hw)->priv))
368 extern const u8 iwl_mvm_ac_to_tx_fifo[];
370 struct iwl_rate_info {
371 u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */
372 u8 plcp_siso; /* uCode API: IWL_RATE_SISO_6M_PLCP, etc. */
373 u8 plcp_mimo2; /* uCode API: IWL_RATE_MIMO2_6M_PLCP, etc. */
374 u8 plcp_mimo3; /* uCode API: IWL_RATE_MIMO3_6M_PLCP, etc. */
375 u8 ieee; /* MAC header: IWL_RATE_6M_IEEE, etc. */
382 int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm);
385 int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags,
386 enum ieee80211_band band);
387 u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx);
388 void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm);
389 u8 first_antenna(u8 mask);
390 u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx);
392 /* Tx / Host Commands */
393 int __must_check iwl_mvm_send_cmd(struct iwl_mvm *mvm,
394 struct iwl_host_cmd *cmd);
395 int __must_check iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u8 id,
396 u32 flags, u16 len, const void *data);
397 int __must_check iwl_mvm_send_cmd_status(struct iwl_mvm *mvm,
398 struct iwl_host_cmd *cmd,
400 int __must_check iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u8 id,
401 u16 len, const void *data,
403 int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
404 struct ieee80211_sta *sta);
405 int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb);
406 #ifdef CONFIG_IWLWIFI_DEBUG
407 const char *iwl_mvm_get_tx_fail_reason(u32 status);
409 static inline const char *iwl_mvm_get_tx_fail_reason(u32 status) { return ""; }
411 int iwl_mvm_flush_tx_path(struct iwl_mvm *mvm, u32 tfd_msk, bool sync);
412 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm);
415 int iwl_mvm_rx_reply_statistics(struct iwl_mvm *mvm,
416 struct iwl_rx_cmd_buffer *rxb,
417 struct iwl_device_cmd *cmd);
418 int iwl_mvm_rx_statistics(struct iwl_mvm *mvm,
419 struct iwl_rx_cmd_buffer *rxb,
420 struct iwl_device_cmd *cmd);
423 int iwl_nvm_init(struct iwl_mvm *mvm);
425 int iwl_mvm_up(struct iwl_mvm *mvm);
426 int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm);
428 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm);
431 * FW notifications / CMD responses handlers
432 * Convention: iwl_mvm_rx_<NAME OF THE CMD>
434 int iwl_mvm_rx_rx_phy_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
435 struct iwl_device_cmd *cmd);
436 int iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
437 struct iwl_device_cmd *cmd);
438 int iwl_mvm_rx_tx_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
439 struct iwl_device_cmd *cmd);
440 int iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
441 struct iwl_device_cmd *cmd);
442 int iwl_mvm_rx_radio_ver(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
443 struct iwl_device_cmd *cmd);
444 int iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
445 struct iwl_device_cmd *cmd);
446 int iwl_mvm_rx_card_state_notif(struct iwl_mvm *mvm,
447 struct iwl_rx_cmd_buffer *rxb,
448 struct iwl_device_cmd *cmd);
449 int iwl_mvm_rx_radio_ver(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
450 struct iwl_device_cmd *cmd);
453 int iwl_mvm_phy_ctxt_add(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
454 struct cfg80211_chan_def *chandef,
455 u8 chains_static, u8 chains_dynamic);
456 int iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
457 struct cfg80211_chan_def *chandef,
458 u8 chains_static, u8 chains_dynamic);
459 void iwl_mvm_phy_ctxt_ref(struct iwl_mvm *mvm,
460 struct iwl_mvm_phy_ctxt *ctxt);
461 void iwl_mvm_phy_ctxt_unref(struct iwl_mvm *mvm,
462 struct iwl_mvm_phy_ctxt *ctxt);
464 /* MAC (virtual interface) programming */
465 int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
466 void iwl_mvm_mac_ctxt_release(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
467 int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
468 int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
469 int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
470 u32 iwl_mvm_mac_get_queues_mask(struct iwl_mvm *mvm,
471 struct ieee80211_vif *vif);
472 int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm,
473 struct ieee80211_vif *vif);
474 int iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm,
475 struct iwl_rx_cmd_buffer *rxb,
476 struct iwl_device_cmd *cmd);
479 int iwl_mvm_binding_add_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
480 int iwl_mvm_binding_remove_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
482 /* Quota management */
483 int iwl_mvm_update_quotas(struct iwl_mvm *mvm, struct ieee80211_vif *newvif);
486 int iwl_mvm_scan_request(struct iwl_mvm *mvm,
487 struct ieee80211_vif *vif,
488 struct cfg80211_scan_request *req);
489 int iwl_mvm_rx_scan_response(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
490 struct iwl_device_cmd *cmd);
491 int iwl_mvm_rx_scan_complete(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
492 struct iwl_device_cmd *cmd);
493 void iwl_mvm_cancel_scan(struct iwl_mvm *mvm);
496 #ifdef CONFIG_IWLWIFI_DEBUGFS
497 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir);
498 void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
499 void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
501 static inline int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm,
502 struct dentry *dbgfs_dir)
507 iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
511 iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
514 #endif /* CONFIG_IWLWIFI_DEBUGFS */
517 int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq,
518 u8 flags, bool init);
520 /* power managment */
521 int iwl_mvm_power_update_mode(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
522 int iwl_mvm_power_disable(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
523 void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
524 struct iwl_powertable_cmd *cmd);
526 int iwl_mvm_leds_init(struct iwl_mvm *mvm);
527 void iwl_mvm_leds_exit(struct iwl_mvm *mvm);
529 /* D3 (WoWLAN, NetDetect) */
530 int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan);
531 int iwl_mvm_resume(struct ieee80211_hw *hw);
532 void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled);
533 void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw,
534 struct ieee80211_vif *vif,
535 struct cfg80211_gtk_rekey_data *data);
536 void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
537 struct ieee80211_vif *vif,
538 struct inet6_dev *idev);
539 void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
540 struct ieee80211_vif *vif, int idx);
543 int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm);
544 int iwl_send_bt_init_conf(struct iwl_mvm *mvm);
545 int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
546 struct iwl_rx_cmd_buffer *rxb,
547 struct iwl_device_cmd *cmd);
548 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
549 enum ieee80211_rssi_event rssi_event);
550 void iwl_mvm_bt_coex_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
552 /* beacon filtering */
553 int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm,
554 struct ieee80211_vif *vif);
555 int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm,
556 struct ieee80211_vif *vif);
558 #endif /* __IWL_MVM_H__ */