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,
94 #define IWL_OFFCHANNEL_QUEUE 8
95 #define IWL_FIRST_AMPDU_QUEUE 11
97 extern struct ieee80211_ops iwl_mvm_hw_ops
;
99 * struct iwl_mvm_mod_params - module parameters for iwlmvm
100 * @init_dbg: if true, then the NIC won't be stopped if the INIT fw asserted.
101 * We will register to mac80211 to have testmode working. The NIC must not
102 * be up'ed after the INIT fw asserted. This is useful to be able to use
103 * proprietary tools over testmode to debug the INIT fw.
104 * @power_scheme: CAM(Continuous Active Mode)-1, BPS(Balanced Power
105 * Save)-2(default), LP(Low Power)-3
107 struct iwl_mvm_mod_params
{
111 extern struct iwl_mvm_mod_params iwlmvm_mod_params
;
113 struct iwl_mvm_phy_ctxt
{
118 * TODO: This should probably be removed. Currently here only for rate
121 struct ieee80211_channel
*channel
;
124 struct iwl_mvm_time_event_data
{
125 struct ieee80211_vif
*vif
;
126 struct list_head list
;
127 unsigned long end_jiffies
;
133 * The access to the 'id' field must be done when the
134 * mvm->time_event_lock is held, as it value is used to indicate
135 * if the te is in the time event list or not (when id == TE_MAX)
140 /* Power management */
143 * enum iwl_power_scheme
144 * @IWL_POWER_LEVEL_CAM - Continuously Active Mode
145 * @IWL_POWER_LEVEL_BPS - Balanced Power Save (default)
146 * @IWL_POWER_LEVEL_LP - Low Power
148 enum iwl_power_scheme
{
149 IWL_POWER_SCHEME_CAM
= 1,
150 IWL_POWER_SCHEME_BPS
,
154 #define IWL_CONN_MAX_LISTEN_INTERVAL 70
157 * struct iwl_mvm_vif - data per Virtual Interface, it is a MAC context
158 * @id: between 0 and 3
159 * @color: to solve races upon MAC addition and removal
160 * @ap_sta_id: the sta_id of the AP - valid only if VIF type is STA
161 * @uploaded: indicates the MAC context has been added to the device
162 * @ap_active: indicates that ap context is configured, and that the interface
163 * should get quota etc.
164 * @queue_params: QoS params for this MAC
165 * @bcast_sta: station used for broadcast packets. Used by the following
166 * vifs: P2P_DEVICE, GO and AP.
167 * @beacon_skb: the skb used to hold the AP/GO beacon template
177 enum iwl_tsf_id tsf_id
;
180 * QoS data from mac80211, need to store this here
181 * as mac80211 has a separate callback but we need
182 * to have the data for the MAC context
184 struct ieee80211_tx_queue_params queue_params
[IEEE80211_NUM_ACS
];
185 struct iwl_mvm_time_event_data time_event_data
;
187 struct iwl_mvm_int_sta bcast_sta
;
190 * Assigned while mac80211 has the interface in a channel context,
191 * or, for P2P Device, while it exists.
193 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
195 #ifdef CONFIG_PM_SLEEP
196 /* WoWLAN GTK rekey data */
198 u8 kck
[NL80211_KCK_LEN
], kek
[NL80211_KEK_LEN
];
205 #if IS_ENABLED(CONFIG_IPV6)
206 /* IPv6 addresses for WoWLAN */
207 struct in6_addr target_ipv6_addrs
[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS
];
208 int num_target_ipv6_addrs
;
212 #ifdef CONFIG_IWLWIFI_DEBUGFS
213 struct dentry
*dbgfs_dir
;
218 static inline struct iwl_mvm_vif
*
219 iwl_mvm_vif_from_mac80211(struct ieee80211_vif
*vif
)
221 return (void *)vif
->drv_priv
;
224 enum iwl_mvm_status
{
225 IWL_MVM_STATUS_HW_RFKILL
,
226 IWL_MVM_STATUS_ROC_RUNNING
,
227 IWL_MVM_STATUS_IN_HW_RESTART
,
230 enum iwl_scan_status
{
236 * struct iwl_nvm_section - describes an NVM section in memory.
238 * This struct holds an NVM section read from the NIC using NVM_ACCESS_CMD,
239 * and saved for later use by the driver. Not all NVM sections are saved
240 * this way, only the needed ones.
242 struct iwl_nvm_section
{
248 /* for logger access */
251 struct iwl_trans
*trans
;
252 const struct iwl_fw
*fw
;
253 const struct iwl_cfg
*cfg
;
254 struct iwl_phy_db
*phy_db
;
255 struct ieee80211_hw
*hw
;
257 /* for protecting access to iwl_mvm */
259 struct list_head async_handlers_list
;
260 spinlock_t async_handlers_lock
;
261 struct work_struct async_handlers_wk
;
263 struct work_struct roc_done_wk
;
265 unsigned long status
;
267 enum iwl_ucode_type cur_ucode
;
270 u32 error_event_table
;
275 struct iwl_notif_wait_data notif_wait
;
277 unsigned long transport_queue_stop
;
278 u8 queue_to_mac80211
[IWL_MAX_HW_QUEUES
];
279 atomic_t queue_stop_count
[IWL_MAX_HW_QUEUES
];
281 struct iwl_nvm_data
*nvm_data
;
282 /* eeprom blob for debugfs/testmode */
284 size_t eeprom_blob_size
;
285 /* NVM sections for 7000 family */
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
)];
297 /* configured by mac80211 */
300 /* Scan status, cmd (pre-allocated) and auxiliary station */
301 enum iwl_scan_status scan_status
;
302 struct iwl_scan_cmd
*scan_cmd
;
304 /* Internal station */
305 struct iwl_mvm_int_sta aux_sta
;
307 u8 scan_last_antenna_idx
; /* to toggle TX between antennas */
308 u8 mgmt_last_antenna_idx
;
310 #ifdef CONFIG_IWLWIFI_DEBUGFS
311 struct dentry
*debugfs_dir
;
312 u32 dbgfs_sram_offset
, dbgfs_sram_len
;
313 bool prevent_power_down_d3
;
316 struct iwl_mvm_phy_ctxt phy_ctxt_roc
;
318 struct list_head time_event_list
;
319 spinlock_t time_event_lock
;
322 * A bitmap indicating the index of the key in use. The firmware
323 * can hold 16 keys at most. Reflect this fact.
325 unsigned long fw_key_table
[BITS_TO_LONGS(STA_KEY_MAX_NUM
)];
328 struct led_classdev led
;
330 struct ieee80211_vif
*p2p_device_vif
;
332 #ifdef CONFIG_PM_SLEEP
333 int gtk_ivlen
, gtk_icvlen
, ptk_ivlen
, ptk_icvlen
;
337 /* Extract MVM priv from op_mode and _hw */
338 #define IWL_OP_MODE_GET_MVM(_iwl_op_mode) \
339 ((struct iwl_mvm *)(_iwl_op_mode)->op_mode_specific)
341 #define IWL_MAC80211_GET_MVM(_hw) \
342 IWL_OP_MODE_GET_MVM((struct iwl_op_mode *)((_hw)->priv))
344 extern const u8 iwl_mvm_ac_to_tx_fifo
[];
346 struct iwl_rate_info
{
347 u8 plcp
; /* uCode API: IWL_RATE_6M_PLCP, etc. */
348 u8 plcp_siso
; /* uCode API: IWL_RATE_SISO_6M_PLCP, etc. */
349 u8 plcp_mimo2
; /* uCode API: IWL_RATE_MIMO2_6M_PLCP, etc. */
350 u8 plcp_mimo3
; /* uCode API: IWL_RATE_MIMO3_6M_PLCP, etc. */
351 u8 ieee
; /* MAC header: IWL_RATE_6M_IEEE, etc. */
358 int iwl_run_init_mvm_ucode(struct iwl_mvm
*mvm
, bool read_nvm
);
361 int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags
,
362 enum ieee80211_band band
);
363 u8
iwl_mvm_mac80211_idx_to_hwrate(int rate_idx
);
364 void iwl_mvm_dump_nic_error_log(struct iwl_mvm
*mvm
);
365 u8
first_antenna(u8 mask
);
366 u8
iwl_mvm_next_antenna(struct iwl_mvm
*mvm
, u8 valid
, u8 last_idx
);
368 /* Tx / Host Commands */
369 int __must_check
iwl_mvm_send_cmd(struct iwl_mvm
*mvm
,
370 struct iwl_host_cmd
*cmd
);
371 int __must_check
iwl_mvm_send_cmd_pdu(struct iwl_mvm
*mvm
, u8 id
,
372 u32 flags
, u16 len
, const void *data
);
373 int __must_check
iwl_mvm_send_cmd_status(struct iwl_mvm
*mvm
,
374 struct iwl_host_cmd
*cmd
,
376 int __must_check
iwl_mvm_send_cmd_pdu_status(struct iwl_mvm
*mvm
, u8 id
,
377 u16 len
, const void *data
,
379 int iwl_mvm_tx_skb(struct iwl_mvm
*mvm
, struct sk_buff
*skb
,
380 struct ieee80211_sta
*sta
);
381 int iwl_mvm_tx_skb_non_sta(struct iwl_mvm
*mvm
, struct sk_buff
*skb
);
382 #ifdef CONFIG_IWLWIFI_DEBUG
383 const char *iwl_mvm_get_tx_fail_reason(u32 status
);
385 static inline const char *iwl_mvm_get_tx_fail_reason(u32 status
) { return ""; }
387 int iwl_mvm_flush_tx_path(struct iwl_mvm
*mvm
, u32 tfd_msk
, bool sync
);
388 void iwl_mvm_async_handlers_purge(struct iwl_mvm
*mvm
);
391 int iwl_mvm_rx_reply_statistics(struct iwl_mvm
*mvm
,
392 struct iwl_rx_cmd_buffer
*rxb
,
393 struct iwl_device_cmd
*cmd
);
394 int iwl_mvm_rx_statistics(struct iwl_mvm
*mvm
,
395 struct iwl_rx_cmd_buffer
*rxb
,
396 struct iwl_device_cmd
*cmd
);
399 int iwl_nvm_init(struct iwl_mvm
*mvm
);
401 int iwl_mvm_up(struct iwl_mvm
*mvm
);
402 int iwl_mvm_load_d3_fw(struct iwl_mvm
*mvm
);
404 int iwl_mvm_mac_setup_register(struct iwl_mvm
*mvm
);
407 * FW notifications / CMD responses handlers
408 * Convention: iwl_mvm_rx_<NAME OF THE CMD>
410 int iwl_mvm_rx_rx_phy_cmd(struct iwl_mvm
*mvm
, struct iwl_rx_cmd_buffer
*rxb
,
411 struct iwl_device_cmd
*cmd
);
412 int iwl_mvm_rx_rx_mpdu(struct iwl_mvm
*mvm
, struct iwl_rx_cmd_buffer
*rxb
,
413 struct iwl_device_cmd
*cmd
);
414 int iwl_mvm_rx_tx_cmd(struct iwl_mvm
*mvm
, struct iwl_rx_cmd_buffer
*rxb
,
415 struct iwl_device_cmd
*cmd
);
416 int iwl_mvm_rx_ba_notif(struct iwl_mvm
*mvm
, struct iwl_rx_cmd_buffer
*rxb
,
417 struct iwl_device_cmd
*cmd
);
418 int iwl_mvm_rx_radio_ver(struct iwl_mvm
*mvm
, struct iwl_rx_cmd_buffer
*rxb
,
419 struct iwl_device_cmd
*cmd
);
420 int iwl_mvm_rx_fw_error(struct iwl_mvm
*mvm
, struct iwl_rx_cmd_buffer
*rxb
,
421 struct iwl_device_cmd
*cmd
);
422 int iwl_mvm_rx_card_state_notif(struct iwl_mvm
*mvm
,
423 struct iwl_rx_cmd_buffer
*rxb
,
424 struct iwl_device_cmd
*cmd
);
425 int iwl_mvm_rx_radio_ver(struct iwl_mvm
*mvm
, struct iwl_rx_cmd_buffer
*rxb
,
426 struct iwl_device_cmd
*cmd
);
429 int iwl_mvm_phy_ctxt_add(struct iwl_mvm
*mvm
, struct iwl_mvm_phy_ctxt
*ctxt
,
430 struct cfg80211_chan_def
*chandef
,
431 u8 chains_static
, u8 chains_dynamic
);
432 int iwl_mvm_phy_ctxt_changed(struct iwl_mvm
*mvm
, struct iwl_mvm_phy_ctxt
*ctxt
,
433 struct cfg80211_chan_def
*chandef
,
434 u8 chains_static
, u8 chains_dynamic
);
435 void iwl_mvm_phy_ctxt_remove(struct iwl_mvm
*mvm
,
436 struct iwl_mvm_phy_ctxt
*ctxt
);
438 /* MAC (virtual interface) programming */
439 int iwl_mvm_mac_ctxt_init(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
);
440 void iwl_mvm_mac_ctxt_release(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
);
441 int iwl_mvm_mac_ctxt_add(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
);
442 int iwl_mvm_mac_ctxt_changed(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
);
443 int iwl_mvm_mac_ctxt_remove(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
);
444 u32
iwl_mvm_mac_get_queues_mask(struct iwl_mvm
*mvm
,
445 struct ieee80211_vif
*vif
);
446 int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm
*mvm
,
447 struct ieee80211_vif
*vif
);
450 int iwl_mvm_binding_add_vif(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
);
451 int iwl_mvm_binding_remove_vif(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
);
453 /* Quota management */
454 int iwl_mvm_update_quotas(struct iwl_mvm
*mvm
, struct ieee80211_vif
*newvif
);
457 int iwl_mvm_scan_request(struct iwl_mvm
*mvm
,
458 struct ieee80211_vif
*vif
,
459 struct cfg80211_scan_request
*req
);
460 int iwl_mvm_rx_scan_response(struct iwl_mvm
*mvm
, struct iwl_rx_cmd_buffer
*rxb
,
461 struct iwl_device_cmd
*cmd
);
462 int iwl_mvm_rx_scan_complete(struct iwl_mvm
*mvm
, struct iwl_rx_cmd_buffer
*rxb
,
463 struct iwl_device_cmd
*cmd
);
464 void iwl_mvm_cancel_scan(struct iwl_mvm
*mvm
);
467 #ifdef CONFIG_IWLWIFI_DEBUGFS
468 int iwl_mvm_dbgfs_register(struct iwl_mvm
*mvm
, struct dentry
*dbgfs_dir
);
469 int iwl_mvm_vif_dbgfs_register(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
470 struct dentry
*dbgfs_dir
);
471 void iwl_power_get_params(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
472 struct iwl_powertable_cmd
*cmd
);
474 static inline int iwl_mvm_dbgfs_register(struct iwl_mvm
*mvm
,
475 struct dentry
*dbgfs_dir
)
479 #endif /* CONFIG_IWLWIFI_DEBUGFS */
482 int iwl_mvm_send_lq_cmd(struct iwl_mvm
*mvm
, struct iwl_lq_cmd
*lq
,
483 u8 flags
, bool init
);
485 /* power managment */
486 int iwl_mvm_power_update_mode(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
);
487 int iwl_mvm_power_disable(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
);
489 int iwl_mvm_leds_init(struct iwl_mvm
*mvm
);
490 void iwl_mvm_leds_exit(struct iwl_mvm
*mvm
);
492 /* D3 (WoWLAN, NetDetect) */
493 int iwl_mvm_suspend(struct ieee80211_hw
*hw
, struct cfg80211_wowlan
*wowlan
);
494 int iwl_mvm_resume(struct ieee80211_hw
*hw
);
495 void iwl_mvm_set_wakeup(struct ieee80211_hw
*hw
, bool enabled
);
496 void iwl_mvm_set_rekey_data(struct ieee80211_hw
*hw
,
497 struct ieee80211_vif
*vif
,
498 struct cfg80211_gtk_rekey_data
*data
);
499 void iwl_mvm_ipv6_addr_change(struct ieee80211_hw
*hw
,
500 struct ieee80211_vif
*vif
,
501 struct inet6_dev
*idev
);
502 void iwl_mvm_set_default_unicast_key(struct ieee80211_hw
*hw
,
503 struct ieee80211_vif
*vif
, int idx
);
505 #endif /* __IWL_MVM_H__ */