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,
91 IWL_MVM_TX_FIFO_MCAST = 5,
94 extern struct ieee80211_ops iwl_mvm_hw_ops;
96 * struct iwl_mvm_mod_params - module parameters for iwlmvm
97 * @init_dbg: if true, then the NIC won't be stopped if the INIT fw asserted.
98 * We will register to mac80211 to have testmode working. The NIC must not
99 * be up'ed after the INIT fw asserted. This is useful to be able to use
100 * proprietary tools over testmode to debug the INIT fw.
101 * @power_scheme: CAM(Continuous Active Mode)-1, BPS(Balanced Power
102 * Save)-2(default), LP(Low Power)-3
104 struct iwl_mvm_mod_params {
108 extern struct iwl_mvm_mod_params iwlmvm_mod_params;
110 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
179 enum iwl_tsf_id tsf_id;
182 * QoS data from mac80211, need to store this here
183 * as mac80211 has a separate callback but we need
184 * to have the data for the MAC context
186 struct ieee80211_tx_queue_params queue_params[IEEE80211_NUM_ACS];
187 struct iwl_mvm_time_event_data time_event_data;
189 struct iwl_mvm_int_sta bcast_sta;
192 * Assigned while mac80211 has the interface in a channel context,
193 * or, for P2P Device, while it exists.
195 struct iwl_mvm_phy_ctxt *phy_ctxt;
197 #ifdef CONFIG_PM_SLEEP
198 /* WoWLAN GTK rekey data */
200 u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
207 #if IS_ENABLED(CONFIG_IPV6)
208 /* IPv6 addresses for WoWLAN */
209 struct in6_addr target_ipv6_addrs[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS];
210 int num_target_ipv6_addrs;
214 #ifdef CONFIG_IWLWIFI_DEBUGFS
215 struct dentry *dbgfs_dir;
216 struct dentry *dbgfs_slink;
221 static inline struct iwl_mvm_vif *
222 iwl_mvm_vif_from_mac80211(struct ieee80211_vif *vif)
224 return (void *)vif->drv_priv;
227 enum iwl_mvm_status {
228 IWL_MVM_STATUS_HW_RFKILL,
229 IWL_MVM_STATUS_ROC_RUNNING,
230 IWL_MVM_STATUS_IN_HW_RESTART,
233 enum iwl_scan_status {
239 * struct iwl_nvm_section - describes an NVM section in memory.
241 * This struct holds an NVM section read from the NIC using NVM_ACCESS_CMD,
242 * and saved for later use by the driver. Not all NVM sections are saved
243 * this way, only the needed ones.
245 struct iwl_nvm_section {
251 /* for logger access */
254 struct iwl_trans *trans;
255 const struct iwl_fw *fw;
256 const struct iwl_cfg *cfg;
257 struct iwl_phy_db *phy_db;
258 struct ieee80211_hw *hw;
260 /* for protecting access to iwl_mvm */
262 struct list_head async_handlers_list;
263 spinlock_t async_handlers_lock;
264 struct work_struct async_handlers_wk;
266 struct work_struct roc_done_wk;
268 unsigned long status;
270 enum iwl_ucode_type cur_ucode;
273 u32 error_event_table;
278 struct iwl_notif_wait_data notif_wait;
280 unsigned long transport_queue_stop;
281 u8 queue_to_mac80211[IWL_MAX_HW_QUEUES];
282 atomic_t queue_stop_count[IWL_MAX_HW_QUEUES];
284 struct iwl_nvm_data *nvm_data;
286 struct iwl_nvm_section nvm_sections[NVM_NUM_OF_SECTIONS];
288 /* EEPROM MAC addresses */
289 struct mac_address addresses[IWL_MVM_MAX_ADDRESSES];
291 /* data related to data path */
292 struct iwl_rx_phy_info last_phy_info;
293 struct ieee80211_sta __rcu *fw_id_to_mac_id[IWL_MVM_STATION_COUNT];
294 struct work_struct sta_drained_wk;
295 unsigned long sta_drained[BITS_TO_LONGS(IWL_MVM_STATION_COUNT)];
296 atomic_t pending_frames[IWL_MVM_STATION_COUNT];
298 /* configured by mac80211 */
301 /* Scan status, cmd (pre-allocated) and auxiliary station */
302 enum iwl_scan_status scan_status;
303 struct iwl_scan_cmd *scan_cmd;
305 /* Internal station */
306 struct iwl_mvm_int_sta aux_sta;
308 u8 scan_last_antenna_idx; /* to toggle TX between antennas */
309 u8 mgmt_last_antenna_idx;
311 #ifdef CONFIG_IWLWIFI_DEBUGFS
312 struct dentry *debugfs_dir;
313 u32 dbgfs_sram_offset, dbgfs_sram_len;
314 bool prevent_power_down_d3;
317 struct iwl_mvm_phy_ctxt phy_ctxt_roc;
319 struct list_head time_event_list;
320 spinlock_t time_event_lock;
323 * A bitmap indicating the index of the key in use. The firmware
324 * can hold 16 keys at most. Reflect this fact.
326 unsigned long fw_key_table[BITS_TO_LONGS(STA_KEY_MAX_NUM)];
329 * This counter of created interfaces is referenced only in conjunction
330 * with FW limitation related to power management. Currently PM is
331 * supported only on a single interface.
332 * IMPORTANT: this variable counts all interfaces except P2P device.
336 struct led_classdev led;
338 struct ieee80211_vif *p2p_device_vif;
340 #ifdef CONFIG_PM_SLEEP
341 int gtk_ivlen, gtk_icvlen, ptk_ivlen, ptk_icvlen;
346 struct iwl_bt_coex_profile_notif last_bt_notif;
349 /* Extract MVM priv from op_mode and _hw */
350 #define IWL_OP_MODE_GET_MVM(_iwl_op_mode) \
351 ((struct iwl_mvm *)(_iwl_op_mode)->op_mode_specific)
353 #define IWL_MAC80211_GET_MVM(_hw) \
354 IWL_OP_MODE_GET_MVM((struct iwl_op_mode *)((_hw)->priv))
356 extern const u8 iwl_mvm_ac_to_tx_fifo[];
358 struct iwl_rate_info {
359 u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */
360 u8 plcp_siso; /* uCode API: IWL_RATE_SISO_6M_PLCP, etc. */
361 u8 plcp_mimo2; /* uCode API: IWL_RATE_MIMO2_6M_PLCP, etc. */
362 u8 plcp_mimo3; /* uCode API: IWL_RATE_MIMO3_6M_PLCP, etc. */
363 u8 ieee; /* MAC header: IWL_RATE_6M_IEEE, etc. */
370 int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm);
373 int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags,
374 enum ieee80211_band band);
375 u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx);
376 void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm);
377 u8 first_antenna(u8 mask);
378 u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx);
380 /* Tx / Host Commands */
381 int __must_check iwl_mvm_send_cmd(struct iwl_mvm *mvm,
382 struct iwl_host_cmd *cmd);
383 int __must_check iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u8 id,
384 u32 flags, u16 len, const void *data);
385 int __must_check iwl_mvm_send_cmd_status(struct iwl_mvm *mvm,
386 struct iwl_host_cmd *cmd,
388 int __must_check iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u8 id,
389 u16 len, const void *data,
391 int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
392 struct ieee80211_sta *sta);
393 int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb);
394 #ifdef CONFIG_IWLWIFI_DEBUG
395 const char *iwl_mvm_get_tx_fail_reason(u32 status);
397 static inline const char *iwl_mvm_get_tx_fail_reason(u32 status) { return ""; }
399 int iwl_mvm_flush_tx_path(struct iwl_mvm *mvm, u32 tfd_msk, bool sync);
400 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm);
403 int iwl_mvm_rx_reply_statistics(struct iwl_mvm *mvm,
404 struct iwl_rx_cmd_buffer *rxb,
405 struct iwl_device_cmd *cmd);
406 int iwl_mvm_rx_statistics(struct iwl_mvm *mvm,
407 struct iwl_rx_cmd_buffer *rxb,
408 struct iwl_device_cmd *cmd);
411 int iwl_nvm_init(struct iwl_mvm *mvm);
413 int iwl_mvm_up(struct iwl_mvm *mvm);
414 int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm);
416 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm);
419 * FW notifications / CMD responses handlers
420 * Convention: iwl_mvm_rx_<NAME OF THE CMD>
422 int iwl_mvm_rx_rx_phy_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
423 struct iwl_device_cmd *cmd);
424 int iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
425 struct iwl_device_cmd *cmd);
426 int iwl_mvm_rx_tx_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
427 struct iwl_device_cmd *cmd);
428 int iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
429 struct iwl_device_cmd *cmd);
430 int iwl_mvm_rx_radio_ver(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
431 struct iwl_device_cmd *cmd);
432 int iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
433 struct iwl_device_cmd *cmd);
434 int iwl_mvm_rx_card_state_notif(struct iwl_mvm *mvm,
435 struct iwl_rx_cmd_buffer *rxb,
436 struct iwl_device_cmd *cmd);
437 int iwl_mvm_rx_radio_ver(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
438 struct iwl_device_cmd *cmd);
441 int iwl_mvm_phy_ctxt_add(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
442 struct cfg80211_chan_def *chandef,
443 u8 chains_static, u8 chains_dynamic);
444 int iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
445 struct cfg80211_chan_def *chandef,
446 u8 chains_static, u8 chains_dynamic);
447 void iwl_mvm_phy_ctxt_remove(struct iwl_mvm *mvm,
448 struct iwl_mvm_phy_ctxt *ctxt);
450 /* MAC (virtual interface) programming */
451 int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
452 void iwl_mvm_mac_ctxt_release(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
453 int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
454 int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
455 int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
456 u32 iwl_mvm_mac_get_queues_mask(struct iwl_mvm *mvm,
457 struct ieee80211_vif *vif);
458 int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm,
459 struct ieee80211_vif *vif);
460 int iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm,
461 struct iwl_rx_cmd_buffer *rxb,
462 struct iwl_device_cmd *cmd);
465 int iwl_mvm_binding_add_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
466 int iwl_mvm_binding_remove_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
468 /* Quota management */
469 int iwl_mvm_update_quotas(struct iwl_mvm *mvm, struct ieee80211_vif *newvif);
472 int iwl_mvm_scan_request(struct iwl_mvm *mvm,
473 struct ieee80211_vif *vif,
474 struct cfg80211_scan_request *req);
475 int iwl_mvm_rx_scan_response(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
476 struct iwl_device_cmd *cmd);
477 int iwl_mvm_rx_scan_complete(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
478 struct iwl_device_cmd *cmd);
479 void iwl_mvm_cancel_scan(struct iwl_mvm *mvm);
482 #ifdef CONFIG_IWLWIFI_DEBUGFS
483 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir);
484 void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
485 void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
487 static inline int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm,
488 struct dentry *dbgfs_dir)
493 iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
497 iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
500 #endif /* CONFIG_IWLWIFI_DEBUGFS */
503 int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq,
504 u8 flags, bool init);
506 /* power managment */
507 int iwl_mvm_power_update_mode(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
508 int iwl_mvm_power_disable(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
509 void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
510 struct iwl_powertable_cmd *cmd);
512 int iwl_mvm_leds_init(struct iwl_mvm *mvm);
513 void iwl_mvm_leds_exit(struct iwl_mvm *mvm);
515 /* D3 (WoWLAN, NetDetect) */
516 int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan);
517 int iwl_mvm_resume(struct ieee80211_hw *hw);
518 void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled);
519 void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw,
520 struct ieee80211_vif *vif,
521 struct cfg80211_gtk_rekey_data *data);
522 void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
523 struct ieee80211_vif *vif,
524 struct inet6_dev *idev);
525 void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
526 struct ieee80211_vif *vif, int idx);
529 int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm);
530 int iwl_send_bt_init_conf(struct iwl_mvm *mvm);
531 int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
532 struct iwl_rx_cmd_buffer *rxb,
533 struct iwl_device_cmd *cmd);
534 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
535 enum ieee80211_rssi_event rssi_event);
536 void iwl_mvm_bt_coex_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
538 #endif /* __IWL_MVM_H__ */