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iwlwifi: disable greenfield transmissions as a workaround
[linux-2.6-block.git] / drivers / net / wireless / iwlwifi / mvm / mvm.h
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8ca151b5
JB		 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 *
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,
22 * USA
23 *
24 * The full GNU General Public License is included in this distribution
410dc5aa 25 * in the file called COPYING.
8ca151b5
JB		 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.
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 *
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
45 * distribution.
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.
49 *
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.
61 *
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 2
8101a7f0
EG		 83/* RSSI offset for WkP */
84#define IWL_RSSI_OFFSET 50
8ca151b5
JB		 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
93/* Placeholder */
94#define IWL_OFFCHANNEL_QUEUE 8
95#define IWL_FIRST_AMPDU_QUEUE 11
96
97extern struct ieee80211_ops iwl_mvm_hw_ops;
98/**
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
106 */
107struct iwl_mvm_mod_params {
108 bool init_dbg;
109 int power_scheme;
110};
111extern struct iwl_mvm_mod_params iwlmvm_mod_params;
112
113struct iwl_mvm_phy_ctxt {
114 u16 id;
115 u16 color;
116
117 /*
118 * TODO: This should probably be removed. Currently here only for rate
119 * scaling algorithm
120 */
121 struct ieee80211_channel *channel;
122};
123
124struct iwl_mvm_time_event_data {
125 struct ieee80211_vif *vif;
126 struct list_head list;
127 unsigned long end_jiffies;
128 u32 duration;
129 bool running;
130 u32 uid;
131
132 /*
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)
136 */
137 u32 id;
138};
139
140 /* Power management */
141
142/**
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
147 */
148enum iwl_power_scheme {
149 IWL_POWER_SCHEME_CAM = 1,
150 IWL_POWER_SCHEME_BPS,
151 IWL_POWER_SCHEME_LP
152};
153
154#define IWL_CONN_MAX_LISTEN_INTERVAL 70
155
156/**
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
168 */
169struct iwl_mvm_vif {
170 u16 id;
171 u16 color;
172 u8 ap_sta_id;
173
174 bool uploaded;
175 bool ap_active;
176
177 enum iwl_tsf_id tsf_id;
178
179 /*
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
183 */
184 struct ieee80211_tx_queue_params queue_params[IEEE80211_NUM_ACS];
185 struct iwl_mvm_time_event_data time_event_data;
186
187 struct iwl_mvm_int_sta bcast_sta;
188
189 /*
190 * Assigned while mac80211 has the interface in a channel context,
191 * or, for P2P Device, while it exists.
192 */
193 struct iwl_mvm_phy_ctxt *phy_ctxt;
194
195#ifdef CONFIG_PM_SLEEP
196 /* WoWLAN GTK rekey data */
197 struct {
198 u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
199 __le64 replay_ctr;
200 bool valid;
201 } rekey_data;
202
203 int tx_key_idx;
204
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;
209#endif
210#endif
211
212#ifdef CONFIG_IWLWIFI_DEBUGFS
213 struct dentry *dbgfs_dir;
214 void *dbgfs_data;
215#endif
216};
217
218static inline struct iwl_mvm_vif *
219iwl_mvm_vif_from_mac80211(struct ieee80211_vif *vif)
220{
221 return (void *)vif->drv_priv;
222}
223
224enum iwl_mvm_status {
225 IWL_MVM_STATUS_HW_RFKILL,
226 IWL_MVM_STATUS_ROC_RUNNING,
227 IWL_MVM_STATUS_IN_HW_RESTART,
228};
229
230enum iwl_scan_status {
231 IWL_MVM_SCAN_NONE,
232 IWL_MVM_SCAN_OS,
233};
234
235/**
236 * struct iwl_nvm_section - describes an NVM section in memory.
237 *
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.
241 */
242struct iwl_nvm_section {
243 u16 length;
244 const u8 *data;
245};
246
247struct iwl_mvm {
248 /* for logger access */
249 struct device *dev;
250
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;
256
257 /* for protecting access to iwl_mvm */
258 struct mutex mutex;
259 struct list_head async_handlers_list;
260 spinlock_t async_handlers_lock;
261 struct work_struct async_handlers_wk;
262
263 struct work_struct roc_done_wk;
264
265 unsigned long status;
266
267 enum iwl_ucode_type cur_ucode;
268 bool ucode_loaded;
269 bool init_ucode_run;
270 u32 error_event_table;
271 u32 log_event_table;
272
273 u32 ampdu_ref;
274
275 struct iwl_notif_wait_data notif_wait;
276
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];
280
281 struct iwl_nvm_data *nvm_data;
282 /* eeprom blob for debugfs/testmode */
283 u8 *eeprom_blob;
284 size_t eeprom_blob_size;
285 /* NVM sections for 7000 family */
286 struct iwl_nvm_section nvm_sections[NVM_NUM_OF_SECTIONS];
287
288 /* EEPROM MAC addresses */
289 struct mac_address addresses[IWL_MVM_MAX_ADDRESSES];
290
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
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 u8 vif_count;
327
328 struct led_classdev led;
329
330 struct ieee80211_vif *p2p_device_vif;
f444eb10
JB		 331
332#ifdef CONFIG_PM_SLEEP
333 int gtk_ivlen, gtk_icvlen, ptk_ivlen, ptk_icvlen;
334#endif
8ca151b5
JB		 335};
336
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)
340
341#define IWL_MAC80211_GET_MVM(_hw) \
342 IWL_OP_MODE_GET_MVM((struct iwl_op_mode *)((_hw)->priv))
343
344extern const u8 iwl_mvm_ac_to_tx_fifo[];
345
346struct 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. */
352};
353
354/******************
355 * MVM Methods
356 ******************/
357/* uCode */
358int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm);
359
360/* Utils */
361int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags,
362 enum ieee80211_band band);
363u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx);
364void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm);
365u8 first_antenna(u8 mask);
366u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx);
367
368/* Tx / Host Commands */
369int __must_check iwl_mvm_send_cmd(struct iwl_mvm *mvm,
370 struct iwl_host_cmd *cmd);
371int __must_check iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u8 id,
372 u32 flags, u16 len, const void *data);
373int __must_check iwl_mvm_send_cmd_status(struct iwl_mvm *mvm,
374 struct iwl_host_cmd *cmd,
375 u32 *status);
376int __must_check iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u8 id,
377 u16 len, const void *data,
378 u32 *status);
379int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
380 struct ieee80211_sta *sta);
381int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb);
382#ifdef CONFIG_IWLWIFI_DEBUG
383const char *iwl_mvm_get_tx_fail_reason(u32 status);
384#else
385static inline const char *iwl_mvm_get_tx_fail_reason(u32 status) { return ""; }
386#endif
387int iwl_mvm_flush_tx_path(struct iwl_mvm *mvm, u32 tfd_msk, bool sync);
388void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm);
389
390/* Statistics */
391int iwl_mvm_rx_reply_statistics(struct iwl_mvm *mvm,
392 struct iwl_rx_cmd_buffer *rxb,
393 struct iwl_device_cmd *cmd);
394int iwl_mvm_rx_statistics(struct iwl_mvm *mvm,
395 struct iwl_rx_cmd_buffer *rxb,
396 struct iwl_device_cmd *cmd);
397
398/* NVM */
399int iwl_nvm_init(struct iwl_mvm *mvm);
400
401int iwl_mvm_up(struct iwl_mvm *mvm);
402int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm);
403
404int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm);
405
406/*
407 * FW notifications / CMD responses handlers
408 * Convention: iwl_mvm_rx_<NAME OF THE CMD>
409 */
410int iwl_mvm_rx_rx_phy_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
411 struct iwl_device_cmd *cmd);
412int iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
413 struct iwl_device_cmd *cmd);
414int iwl_mvm_rx_tx_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
415 struct iwl_device_cmd *cmd);
416int iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
417 struct iwl_device_cmd *cmd);
418int iwl_mvm_rx_radio_ver(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
419 struct iwl_device_cmd *cmd);
420int iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
421 struct iwl_device_cmd *cmd);
422int iwl_mvm_rx_card_state_notif(struct iwl_mvm *mvm,
423 struct iwl_rx_cmd_buffer *rxb,
424 struct iwl_device_cmd *cmd);
425int iwl_mvm_rx_radio_ver(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
426 struct iwl_device_cmd *cmd);
427
428/* MVM PHY */
429int 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);
432int 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);
435void iwl_mvm_phy_ctxt_remove(struct iwl_mvm *mvm,
436 struct iwl_mvm_phy_ctxt *ctxt);
437
438/* MAC (virtual interface) programming */
439int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
440void iwl_mvm_mac_ctxt_release(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
441int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
442int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
443int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
444u32 iwl_mvm_mac_get_queues_mask(struct iwl_mvm *mvm,
445 struct ieee80211_vif *vif);
446int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm,
447 struct ieee80211_vif *vif);
448
449/* Bindings */
450int iwl_mvm_binding_add_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
451int iwl_mvm_binding_remove_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
452
453/* Quota management */
454int iwl_mvm_update_quotas(struct iwl_mvm *mvm, struct ieee80211_vif *newvif);
455
456/* Scanning */
457int iwl_mvm_scan_request(struct iwl_mvm *mvm,
458 struct ieee80211_vif *vif,
459 struct cfg80211_scan_request *req);
460int iwl_mvm_rx_scan_response(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
461 struct iwl_device_cmd *cmd);
462int iwl_mvm_rx_scan_complete(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
463 struct iwl_device_cmd *cmd);
464void iwl_mvm_cancel_scan(struct iwl_mvm *mvm);
465
466/* MVM debugfs */
467#ifdef CONFIG_IWLWIFI_DEBUGFS
468int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir);
469int iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
470 struct dentry *dbgfs_dir);
471void iwl_power_get_params(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
472 struct iwl_powertable_cmd *cmd);
473#else
474static inline int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm,
475 struct dentry *dbgfs_dir)
476{
477 return 0;
478}
479#endif /* CONFIG_IWLWIFI_DEBUGFS */
480
481/* rate scaling */
482int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq,
483 u8 flags, bool init);
484
485/* power managment */
486int iwl_mvm_power_update_mode(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
487int iwl_mvm_power_disable(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
488
489int iwl_mvm_leds_init(struct iwl_mvm *mvm);
490void iwl_mvm_leds_exit(struct iwl_mvm *mvm);
491
492/* D3 (WoWLAN, NetDetect) */
493int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan);
494int iwl_mvm_resume(struct ieee80211_hw *hw);
495void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled);
496void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw,
497 struct ieee80211_vif *vif,
498 struct cfg80211_gtk_rekey_data *data);
499void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
500 struct ieee80211_vif *vif,
501 struct inet6_dev *idev);
502void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
503 struct ieee80211_vif *vif, int idx);
504
505#endif /* __IWL_MVM_H__ */
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