aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/wireless/iwlwifi/mvm/mvm.h
blob: 537711b1047865cf42fb9ed271369917c4f736fb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
/******************************************************************************
 *
 * This file is provided under a dual BSD/GPLv2 license.  When using or
 * redistributing this file, you may do so under either license.
 *
 * GPL LICENSE SUMMARY
 *
 * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
 * USA
 *
 * The full GNU General Public License is included in this distribution
 * in the file called LICENSE.GPL.
 *
 * Contact Information:
 *  Intel Linux Wireless <ilw@linux.intel.com>
 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
 *
 * BSD LICENSE
 *
 * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *  * Neither the name Intel Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *****************************************************************************/

#ifndef __IWL_MVM_H__
#define __IWL_MVM_H__

#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/leds.h>
#include <linux/in6.h>

#include "iwl-op-mode.h"
#include "iwl-trans.h"
#include "iwl-notif-wait.h"
#include "iwl-eeprom-parse.h"
#include "iwl-test.h"
#include "iwl-trans.h"
#include "sta.h"
#include "fw-api.h"

#define IWL_INVALID_MAC80211_QUEUE	0xff
#define IWL_MVM_MAX_ADDRESSES		2
#define IWL_RSSI_OFFSET 44

enum iwl_mvm_tx_fifo {
	IWL_MVM_TX_FIFO_BK = 0,
	IWL_MVM_TX_FIFO_BE,
	IWL_MVM_TX_FIFO_VI,
	IWL_MVM_TX_FIFO_VO,
};

/* Placeholder */
#define IWL_OFFCHANNEL_QUEUE 8
#define IWL_FIRST_AMPDU_QUEUE 11

extern struct ieee80211_ops iwl_mvm_hw_ops;
/**
 * struct iwl_mvm_mod_params - module parameters for iwlmvm
 * @init_dbg: if true, then the NIC won't be stopped if the INIT fw asserted.
 *	We will register to mac80211 to have testmode working. The NIC must not
 *	be up'ed after the INIT fw asserted. This is useful to be able to use
 *	proprietary tools over testmode to debug the INIT fw.
 * @power_scheme: CAM(Continuous Active Mode)-1, BPS(Balanced Power
 *	Save)-2(default), LP(Low Power)-3
 */
struct iwl_mvm_mod_params {
	bool init_dbg;
	int power_scheme;
};
extern struct iwl_mvm_mod_params iwlmvm_mod_params;

struct iwl_mvm_phy_ctxt {
	u16 id;
	u16 color;

	/*
	 * TODO: This should probably be removed. Currently here only for rate
	 * scaling algorithm
	 */
	struct ieee80211_channel *channel;
};

struct iwl_mvm_time_event_data {
	struct ieee80211_vif *vif;
	struct list_head list;
	unsigned long end_jiffies;
	u32 duration;
	bool running;
	u32 uid;

	/*
	 * The access to the 'id' field must be done when the
	 * mvm->time_event_lock is held, as it value is used to indicate
	 * if the te is in the time event list or not (when id == TE_MAX)
	 */
	u32 id;
};

 /* Power management */

/**
 * enum iwl_power_scheme
 * @IWL_POWER_LEVEL_CAM - Continuously Active Mode
 * @IWL_POWER_LEVEL_BPS - Balanced Power Save (default)
 * @IWL_POWER_LEVEL_LP  - Low Power
 */
enum iwl_power_scheme {
	IWL_POWER_SCHEME_CAM = 1,
	IWL_POWER_SCHEME_BPS,
	IWL_POWER_SCHEME_LP
};

#define IWL_CONN_MAX_LISTEN_INTERVAL	70

/**
 * struct iwl_mvm_vif - data per Virtual Interface, it is a MAC context
 * @id: between 0 and 3
 * @color: to solve races upon MAC addition and removal
 * @ap_sta_id: the sta_id of the AP - valid only if VIF type is STA
 * @uploaded: indicates the MAC context has been added to the device
 * @ap_active: indicates that ap context is configured, and that the interface
 *  should get quota etc.
 * @queue_params: QoS params for this MAC
 * @bcast_sta: station used for broadcast packets. Used by the following
 *  vifs: P2P_DEVICE, GO and AP.
 * @beacon_skb: the skb used to hold the AP/GO beacon template
 */
struct iwl_mvm_vif {
	u16 id;
	u16 color;
	u8 ap_sta_id;

	bool uploaded;
	bool ap_active;

	enum iwl_tsf_id tsf_id;

	/*
	 * QoS data from mac80211, need to store this here
	 * as mac80211 has a separate callback but we need
	 * to have the data for the MAC context
	 */
	struct ieee80211_tx_queue_params queue_params[IEEE80211_NUM_ACS];
	struct iwl_mvm_time_event_data time_event_data;

	struct iwl_mvm_int_sta bcast_sta;

	/*
	 * Assigned while mac80211 has the interface in a channel context,
	 * or, for P2P Device, while it exists.
	 */
	struct iwl_mvm_phy_ctxt *phy_ctxt;

#ifdef CONFIG_PM_SLEEP
	/* WoWLAN GTK rekey data */
	struct {
		u8 kck[NL80211_KCK_LEN], kek[NL80211_KEK_LEN];
		__le64 replay_ctr;
		bool valid;
	} rekey_data;

	int tx_key_idx;

#if IS_ENABLED(CONFIG_IPV6)
	/* IPv6 addresses for WoWLAN */
	struct in6_addr target_ipv6_addrs[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS];
	int num_target_ipv6_addrs;
#endif
#endif

#ifdef CONFIG_IWLWIFI_DEBUGFS
	struct dentry *dbgfs_dir;
	void *dbgfs_data;
#endif
};

static inline struct iwl_mvm_vif *
iwl_mvm_vif_from_mac80211(struct ieee80211_vif *vif)
{
	return (void *)vif->drv_priv;
}

enum iwl_mvm_status {
	IWL_MVM_STATUS_HW_RFKILL,
	IWL_MVM_STATUS_ROC_RUNNING,
	IWL_MVM_STATUS_IN_HW_RESTART,
};

enum iwl_scan_status {
	IWL_MVM_SCAN_NONE,
	IWL_MVM_SCAN_OS,
};

/**
 * struct iwl_nvm_section - describes an NVM section in memory.
 *
 * This struct holds an NVM section read from the NIC using NVM_ACCESS_CMD,
 * and saved for later use by the driver. Not all NVM sections are saved
 * this way, only the needed ones.
 */
struct iwl_nvm_section {
	u16 length;
	const u8 *data;
};

struct iwl_mvm {
	/* for logger access */
	struct device *dev;

	struct iwl_trans *trans;
	const struct iwl_fw *fw;
	const struct iwl_cfg *cfg;
	struct iwl_phy_db *phy_db;
	struct ieee80211_hw *hw;

	/* for protecting access to iwl_mvm */
	struct mutex mutex;
	struct list_head async_handlers_list;
	spinlock_t async_handlers_lock;
	struct work_struct async_handlers_wk;

	struct work_struct roc_done_wk;

	unsigned long status;

	enum iwl_ucode_type cur_ucode;
	bool ucode_loaded;
	bool init_ucode_run;
	u32 error_event_table;
	u32 log_event_table;

	u32 ampdu_ref;

	struct iwl_notif_wait_data notif_wait;

	unsigned long transport_queue_stop;
	u8 queue_to_mac80211[IWL_MAX_HW_QUEUES];
	atomic_t queue_stop_count[IWL_MAX_HW_QUEUES];

	struct iwl_nvm_data *nvm_data;
	/* eeprom blob for debugfs/testmode */
	u8 *eeprom_blob;
	size_t eeprom_blob_size;
	/* NVM sections for 7000 family */
	struct iwl_nvm_section nvm_sections[NVM_NUM_OF_SECTIONS];

	/* EEPROM MAC addresses */
	struct mac_address addresses[IWL_MVM_MAX_ADDRESSES];

	/* data related to data path */
	struct iwl_rx_phy_info last_phy_info;
	struct ieee80211_sta __rcu *fw_id_to_mac_id[IWL_MVM_STATION_COUNT];
	struct work_struct sta_drained_wk;
	unsigned long sta_drained[BITS_TO_LONGS(IWL_MVM_STATION_COUNT)];

	/* configured by mac80211 */
	u32 rts_threshold;

	/* Scan status, cmd (pre-allocated) and auxiliary station */
	enum iwl_scan_status scan_status;
	struct iwl_scan_cmd *scan_cmd;

	/* Internal station */
	struct iwl_mvm_int_sta aux_sta;

	u8 scan_last_antenna_idx; /* to toggle TX between antennas */
	u8 mgmt_last_antenna_idx;

#ifdef CONFIG_IWLWIFI_DEBUGFS
	struct dentry *debugfs_dir;
	u32 dbgfs_sram_offset, dbgfs_sram_len;
	bool prevent_power_down_d3;
#endif

	struct iwl_mvm_phy_ctxt phy_ctxt_roc;

	struct list_head time_event_list;
	spinlock_t time_event_lock;

	/*
	 * A bitmap indicating the index of the key in use. The firmware
	 * can hold 16 keys at most. Reflect this fact.
	 */
	unsigned long fw_key_table[BITS_TO_LONGS(STA_KEY_MAX_NUM)];
	u8 vif_count;

	struct led_classdev led;

	struct ieee80211_vif *p2p_device_vif;

#ifdef CONFIG_PM_SLEEP
	int gtk_ivlen, gtk_icvlen, ptk_ivlen, ptk_icvlen;
#endif
};

/* Extract MVM priv from op_mode and _hw */
#define IWL_OP_MODE_GET_MVM(_iwl_op_mode)		\
	((struct iwl_mvm *)(_iwl_op_mode)->op_mode_specific)

#define IWL_MAC80211_GET_MVM(_hw)			\
	IWL_OP_MODE_GET_MVM((struct iwl_op_mode *)((_hw)->priv))

extern const u8 iwl_mvm_ac_to_tx_fifo[];

struct iwl_rate_info {
	u8 plcp;	/* uCode API:  IWL_RATE_6M_PLCP, etc. */
	u8 plcp_siso;	/* uCode API:  IWL_RATE_SISO_6M_PLCP, etc. */
	u8 plcp_mimo2;	/* uCode API:  IWL_RATE_MIMO2_6M_PLCP, etc. */
	u8 plcp_mimo3;  /* uCode API:  IWL_RATE_MIMO3_6M_PLCP, etc. */
	u8 ieee;	/* MAC header:  IWL_RATE_6M_IEEE, etc. */
};

/******************
 * MVM Methods
 ******************/
/* uCode */
int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm);

/* Utils */
int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags,
					enum ieee80211_band band);
u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx);
void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm);
u8 first_antenna(u8 mask);
u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx);

/* Tx / Host Commands */
int __must_check iwl_mvm_send_cmd(struct iwl_mvm *mvm,
				  struct iwl_host_cmd *cmd);
int __must_check iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u8 id,
				      u32 flags, u16 len, const void *data);
int __must_check iwl_mvm_send_cmd_status(struct iwl_mvm *mvm,
					 struct iwl_host_cmd *cmd,
					 u32 *status);
int __must_check iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u8 id,
					     u16 len, const void *data,
					     u32 *status);
int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
		   struct ieee80211_sta *sta);
int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb);
#ifdef CONFIG_IWLWIFI_DEBUG
const char *iwl_mvm_get_tx_fail_reason(u32 status);
#else
static inline const char *iwl_mvm_get_tx_fail_reason(u32 status) { return ""; }
#endif
int iwl_mvm_flush_tx_path(struct iwl_mvm *mvm, u32 tfd_msk, bool sync);
void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm);

/* Statistics */
int iwl_mvm_rx_reply_statistics(struct iwl_mvm *mvm,
				struct iwl_rx_cmd_buffer *rxb,
				struct iwl_device_cmd *cmd);
int iwl_mvm_rx_statistics(struct iwl_mvm *mvm,
			  struct iwl_rx_cmd_buffer *rxb,
			  struct iwl_device_cmd *cmd);

/* NVM */
int iwl_nvm_init(struct iwl_mvm *mvm);

int iwl_mvm_up(struct iwl_mvm *mvm);
int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm);

int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm);

/*
 * FW notifications / CMD responses handlers
 * Convention: iwl_mvm_rx_<NAME OF THE CMD>
 */
int iwl_mvm_rx_rx_phy_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
			  struct iwl_device_cmd *cmd);
int iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
		       struct iwl_device_cmd *cmd);
int iwl_mvm_rx_tx_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
		      struct iwl_device_cmd *cmd);
int iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
			struct iwl_device_cmd *cmd);
int iwl_mvm_rx_radio_ver(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
			 struct iwl_device_cmd *cmd);
int iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
			  struct iwl_device_cmd *cmd);
int iwl_mvm_rx_card_state_notif(struct iwl_mvm *mvm,
				struct iwl_rx_cmd_buffer *rxb,
				struct iwl_device_cmd *cmd);
int iwl_mvm_rx_radio_ver(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
			 struct iwl_device_cmd *cmd);

/* MVM PHY */
int iwl_mvm_phy_ctxt_add(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
			 struct cfg80211_chan_def *chandef,
			 u8 chains_static, u8 chains_dynamic);
int iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt,
			     struct cfg80211_chan_def *chandef,
			     u8 chains_static, u8 chains_dynamic);
void iwl_mvm_phy_ctxt_remove(struct iwl_mvm *mvm,
			     struct iwl_mvm_phy_ctxt *ctxt);

/* MAC (virtual interface) programming */
int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
void iwl_mvm_mac_ctxt_release(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
u32 iwl_mvm_mac_get_queues_mask(struct iwl_mvm *mvm,
				struct ieee80211_vif *vif);
int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm,
				    struct ieee80211_vif *vif);

/* Bindings */
int iwl_mvm_binding_add_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
int iwl_mvm_binding_remove_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif);

/* Quota management */
int iwl_mvm_update_quotas(struct iwl_mvm *mvm, struct ieee80211_vif *newvif);

/* Scanning */
int iwl_mvm_scan_request(struct iwl_mvm *mvm,
			 struct ieee80211_vif *vif,
			 struct cfg80211_scan_request *req);
int iwl_mvm_rx_scan_response(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
			     struct iwl_device_cmd *cmd);
int iwl_mvm_rx_scan_complete(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
			     struct iwl_device_cmd *cmd);
void iwl_mvm_cancel_scan(struct iwl_mvm *mvm);

/* MVM debugfs */
#ifdef CONFIG_IWLWIFI_DEBUGFS
int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir);
int iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
			       struct dentry *dbgfs_dir);
void iwl_power_get_params(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
			  struct iwl_powertable_cmd *cmd);
#else
static inline int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm,
					 struct dentry *dbgfs_dir)
{
	return 0;
}
#endif /* CONFIG_IWLWIFI_DEBUGFS */

/* rate scaling */
int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq,
			u8 flags, bool init);

/* power managment */
int iwl_mvm_power_update_mode(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
int iwl_mvm_power_disable(struct iwl_mvm *mvm, struct ieee80211_vif *vif);

int iwl_mvm_leds_init(struct iwl_mvm *mvm);
void iwl_mvm_leds_exit(struct iwl_mvm *mvm);

/* D3 (WoWLAN, NetDetect) */
int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan);
int iwl_mvm_resume(struct ieee80211_hw *hw);
void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled);
void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw,
			    struct ieee80211_vif *vif,
			    struct cfg80211_gtk_rekey_data *data);
void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
			      struct ieee80211_vif *vif,
			      struct inet6_dev *idev);
void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
				     struct ieee80211_vif *vif, int idx);

#endif /* __IWL_MVM_H__ */