summaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/iwlwifi/mvm/fw-api-sta.h
blob: 21dd5b771660f0f689798b650fbb4acd1eed3d21 (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
/******************************************************************************
 *
 * 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 - 2014 Intel Corporation. All rights reserved.
 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
 *
 * 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 COPYING.
 *
 * 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 - 2014 Intel Corporation. All rights reserved.
 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
 * 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 __fw_api_sta_h__
#define __fw_api_sta_h__

/**
 * enum iwl_sta_flags - flags for the ADD_STA host command
 * @STA_FLG_REDUCED_TX_PWR_CTRL:
 * @STA_FLG_REDUCED_TX_PWR_DATA:
 * @STA_FLG_DISABLE_TX: set if TX should be disabled
 * @STA_FLG_PS: set if STA is in Power Save
 * @STA_FLG_INVALID: set if STA is invalid
 * @STA_FLG_DLP_EN: Direct Link Protocol is enabled
 * @STA_FLG_SET_ALL_KEYS: the current key applies to all key IDs
 * @STA_FLG_DRAIN_FLOW: drain flow
 * @STA_FLG_PAN: STA is for PAN interface
 * @STA_FLG_CLASS_AUTH:
 * @STA_FLG_CLASS_ASSOC:
 * @STA_FLG_CLASS_MIMO_PROT:
 * @STA_FLG_MAX_AGG_SIZE_MSK: maximal size for A-MPDU
 * @STA_FLG_AGG_MPDU_DENS_MSK: maximal MPDU density for Tx aggregation
 * @STA_FLG_FAT_EN_MSK: support for channel width (for Tx). This flag is
 *	initialised by driver and can be updated by fw upon reception of
 *	action frames that can change the channel width. When cleared the fw
 *	will send all the frames in 20MHz even when FAT channel is requested.
 * @STA_FLG_MIMO_EN_MSK: support for MIMO. This flag is initialised by the
 *	driver and can be updated by fw upon reception of action frames.
 * @STA_FLG_MFP_EN: Management Frame Protection
 */
enum iwl_sta_flags {
	STA_FLG_REDUCED_TX_PWR_CTRL	= BIT(3),
	STA_FLG_REDUCED_TX_PWR_DATA	= BIT(6),

	STA_FLG_DISABLE_TX		= BIT(4),

	STA_FLG_PS			= BIT(8),
	STA_FLG_DRAIN_FLOW		= BIT(12),
	STA_FLG_PAN			= BIT(13),
	STA_FLG_CLASS_AUTH		= BIT(14),
	STA_FLG_CLASS_ASSOC		= BIT(15),
	STA_FLG_RTS_MIMO_PROT		= BIT(17),

	STA_FLG_MAX_AGG_SIZE_SHIFT	= 19,
	STA_FLG_MAX_AGG_SIZE_8K		= (0 << STA_FLG_MAX_AGG_SIZE_SHIFT),
	STA_FLG_MAX_AGG_SIZE_16K	= (1 << STA_FLG_MAX_AGG_SIZE_SHIFT),
	STA_FLG_MAX_AGG_SIZE_32K	= (2 << STA_FLG_MAX_AGG_SIZE_SHIFT),
	STA_FLG_MAX_AGG_SIZE_64K	= (3 << STA_FLG_MAX_AGG_SIZE_SHIFT),
	STA_FLG_MAX_AGG_SIZE_128K	= (4 << STA_FLG_MAX_AGG_SIZE_SHIFT),
	STA_FLG_MAX_AGG_SIZE_256K	= (5 << STA_FLG_MAX_AGG_SIZE_SHIFT),
	STA_FLG_MAX_AGG_SIZE_512K	= (6 << STA_FLG_MAX_AGG_SIZE_SHIFT),
	STA_FLG_MAX_AGG_SIZE_1024K	= (7 << STA_FLG_MAX_AGG_SIZE_SHIFT),
	STA_FLG_MAX_AGG_SIZE_MSK	= (7 << STA_FLG_MAX_AGG_SIZE_SHIFT),

	STA_FLG_AGG_MPDU_DENS_SHIFT	= 23,
	STA_FLG_AGG_MPDU_DENS_2US	= (4 << STA_FLG_AGG_MPDU_DENS_SHIFT),
	STA_FLG_AGG_MPDU_DENS_4US	= (5 << STA_FLG_AGG_MPDU_DENS_SHIFT),
	STA_FLG_AGG_MPDU_DENS_8US	= (6 << STA_FLG_AGG_MPDU_DENS_SHIFT),
	STA_FLG_AGG_MPDU_DENS_16US	= (7 << STA_FLG_AGG_MPDU_DENS_SHIFT),
	STA_FLG_AGG_MPDU_DENS_MSK	= (7 << STA_FLG_AGG_MPDU_DENS_SHIFT),

	STA_FLG_FAT_EN_20MHZ		= (0 << 26),
	STA_FLG_FAT_EN_40MHZ		= (1 << 26),
	STA_FLG_FAT_EN_80MHZ		= (2 << 26),
	STA_FLG_FAT_EN_160MHZ		= (3 << 26),
	STA_FLG_FAT_EN_MSK		= (3 << 26),

	STA_FLG_MIMO_EN_SISO		= (0 << 28),
	STA_FLG_MIMO_EN_MIMO2		= (1 << 28),
	STA_FLG_MIMO_EN_MIMO3		= (2 << 28),
	STA_FLG_MIMO_EN_MSK		= (3 << 28),
};

/**
 * enum iwl_sta_key_flag - key flags for the ADD_STA host command
 * @STA_KEY_FLG_NO_ENC: no encryption
 * @STA_KEY_FLG_WEP: WEP encryption algorithm
 * @STA_KEY_FLG_CCM: CCMP encryption algorithm
 * @STA_KEY_FLG_TKIP: TKIP encryption algorithm
 * @STA_KEY_FLG_EXT: extended cipher algorithm (depends on the FW support)
 * @STA_KEY_FLG_CMAC: CMAC encryption algorithm
 * @STA_KEY_FLG_ENC_UNKNOWN: unknown encryption algorithm
 * @STA_KEY_FLG_EN_MSK: mask for encryption algorithmi value
 * @STA_KEY_FLG_WEP_KEY_MAP: wep is either a group key (0 - legacy WEP) or from
 *	station info array (1 - n 1X mode)
 * @STA_KEY_FLG_KEYID_MSK: the index of the key
 * @STA_KEY_NOT_VALID: key is invalid
 * @STA_KEY_FLG_WEP_13BYTES: set for 13 bytes WEP key
 * @STA_KEY_MULTICAST: set for multical key
 * @STA_KEY_MFP: key is used for Management Frame Protection
 */
enum iwl_sta_key_flag {
	STA_KEY_FLG_NO_ENC		= (0 << 0),
	STA_KEY_FLG_WEP			= (1 << 0),
	STA_KEY_FLG_CCM			= (2 << 0),
	STA_KEY_FLG_TKIP		= (3 << 0),
	STA_KEY_FLG_EXT			= (4 << 0),
	STA_KEY_FLG_CMAC		= (6 << 0),
	STA_KEY_FLG_ENC_UNKNOWN		= (7 << 0),
	STA_KEY_FLG_EN_MSK		= (7 << 0),

	STA_KEY_FLG_WEP_KEY_MAP		= BIT(3),
	STA_KEY_FLG_KEYID_POS		 = 8,
	STA_KEY_FLG_KEYID_MSK		= (3 << STA_KEY_FLG_KEYID_POS),
	STA_KEY_NOT_VALID		= BIT(11),
	STA_KEY_FLG_WEP_13BYTES		= BIT(12),
	STA_KEY_MULTICAST		= BIT(14),
	STA_KEY_MFP			= BIT(15),
};

/**
 * enum iwl_sta_modify_flag - indicate to the fw what flag are being changed
 * @STA_MODIFY_KEY: this command modifies %key
 * @STA_MODIFY_TID_DISABLE_TX: this command modifies %tid_disable_tx
 * @STA_MODIFY_TX_RATE: unused
 * @STA_MODIFY_ADD_BA_TID: this command modifies %add_immediate_ba_tid
 * @STA_MODIFY_REMOVE_BA_TID: this command modifies %remove_immediate_ba_tid
 * @STA_MODIFY_SLEEPING_STA_TX_COUNT: this command modifies %sleep_tx_count
 * @STA_MODIFY_PROT_TH:
 * @STA_MODIFY_QUEUES: modify the queues used by this station
 */
enum iwl_sta_modify_flag {
	STA_MODIFY_KEY				= BIT(0),
	STA_MODIFY_TID_DISABLE_TX		= BIT(1),
	STA_MODIFY_TX_RATE			= BIT(2),
	STA_MODIFY_ADD_BA_TID			= BIT(3),
	STA_MODIFY_REMOVE_BA_TID		= BIT(4),
	STA_MODIFY_SLEEPING_STA_TX_COUNT	= BIT(5),
	STA_MODIFY_PROT_TH			= BIT(6),
	STA_MODIFY_QUEUES			= BIT(7),
};

#define STA_MODE_MODIFY	1

/**
 * enum iwl_sta_sleep_flag - type of sleep of the station
 * @STA_SLEEP_STATE_AWAKE:
 * @STA_SLEEP_STATE_PS_POLL:
 * @STA_SLEEP_STATE_UAPSD:
 * @STA_SLEEP_STATE_MOREDATA: set more-data bit on
 *	(last) released frame
 */
enum iwl_sta_sleep_flag {
	STA_SLEEP_STATE_AWAKE		= 0,
	STA_SLEEP_STATE_PS_POLL		= BIT(0),
	STA_SLEEP_STATE_UAPSD		= BIT(1),
	STA_SLEEP_STATE_MOREDATA	= BIT(2),
};

/* STA ID and color bits definitions */
#define STA_ID_SEED		(0x0f)
#define STA_ID_POS		(0)
#define STA_ID_MSK		(STA_ID_SEED << STA_ID_POS)

#define STA_COLOR_SEED		(0x7)
#define STA_COLOR_POS		(4)
#define STA_COLOR_MSK		(STA_COLOR_SEED << STA_COLOR_POS)

#define STA_ID_N_COLOR_GET_COLOR(id_n_color) \
	(((id_n_color) & STA_COLOR_MSK) >> STA_COLOR_POS)
#define STA_ID_N_COLOR_GET_ID(id_n_color)    \
	(((id_n_color) & STA_ID_MSK) >> STA_ID_POS)

#define STA_KEY_MAX_NUM (16)
#define STA_KEY_IDX_INVALID (0xff)
#define STA_KEY_MAX_DATA_KEY_NUM (4)
#define IWL_MAX_GLOBAL_KEYS (4)
#define STA_KEY_LEN_WEP40 (5)
#define STA_KEY_LEN_WEP104 (13)

/**
 * struct iwl_mvm_keyinfo - key information
 * @key_flags: type %iwl_sta_key_flag
 * @tkip_rx_tsc_byte2: TSC[2] for key mix ph1 detection
 * @tkip_rx_ttak: 10-byte unicast TKIP TTAK for Rx
 * @key_offset: key offset in the fw's key table
 * @key: 16-byte unicast decryption key
 * @tx_secur_seq_cnt: initial RSC / PN needed for replay check
 * @hw_tkip_mic_rx_key: byte: MIC Rx Key - used for TKIP only
 * @hw_tkip_mic_tx_key: byte: MIC Tx Key - used for TKIP only
 */
struct iwl_mvm_keyinfo {
	__le16 key_flags;
	u8 tkip_rx_tsc_byte2;
	u8 reserved1;
	__le16 tkip_rx_ttak[5];
	u8 key_offset;
	u8 reserved2;
	u8 key[16];
	__le64 tx_secur_seq_cnt;
	__le64 hw_tkip_mic_rx_key;
	__le64 hw_tkip_mic_tx_key;
} __packed;

/**
 * struct iwl_mvm_add_sta_cmd - Add/modify a station in the fw's sta table.
 * ( REPLY_ADD_STA = 0x18 )
 * @add_modify: 1: modify existing, 0: add new station
 * @awake_acs:
 * @tid_disable_tx: is tid BIT(tid) enabled for Tx. Clear BIT(x) to enable
 *	AMPDU for tid x. Set %STA_MODIFY_TID_DISABLE_TX to change this field.
 * @mac_id_n_color: the Mac context this station belongs to
 * @addr[ETH_ALEN]: station's MAC address
 * @sta_id: index of station in uCode's station table
 * @modify_mask: STA_MODIFY_*, selects which parameters to modify vs. leave
 *	alone. 1 - modify, 0 - don't change.
 * @station_flags: look at %iwl_sta_flags
 * @station_flags_msk: what of %station_flags have changed
 * @add_immediate_ba_tid: tid for which to add block-ack support (Rx)
 *	Set %STA_MODIFY_ADD_BA_TID to use this field, and also set
 *	add_immediate_ba_ssn.
 * @remove_immediate_ba_tid: tid for which to remove block-ack support (Rx)
 *	Set %STA_MODIFY_REMOVE_BA_TID to use this field
 * @add_immediate_ba_ssn: ssn for the Rx block-ack session. Used together with
 *	add_immediate_ba_tid.
 * @sleep_tx_count: number of packets to transmit to station even though it is
 *	asleep. Used to synchronise PS-poll and u-APSD responses while ucode
 *	keeps track of STA sleep state.
 * @sleep_state_flags: Look at %iwl_sta_sleep_flag.
 * @assoc_id: assoc_id to be sent in VHT PLCP (9-bit), for grp use 0, for AP
 *	mac-addr.
 * @beamform_flags: beam forming controls
 * @tfd_queue_msk: tfd queues used by this station
 *
 * The device contains an internal table of per-station information, with info
 * on security keys, aggregation parameters, and Tx rates for initial Tx
 * attempt and any retries (set by REPLY_TX_LINK_QUALITY_CMD).
 *
 * ADD_STA sets up the table entry for one station, either creating a new
 * entry, or modifying a pre-existing one.
 */
struct iwl_mvm_add_sta_cmd {
	u8 add_modify;
	u8 awake_acs;
	__le16 tid_disable_tx;
	__le32 mac_id_n_color;
	u8 addr[ETH_ALEN];	/* _STA_ID_MODIFY_INFO_API_S_VER_1 */
	__le16 reserved2;
	u8 sta_id;
	u8 modify_mask;
	__le16 reserved3;
	__le32 station_flags;
	__le32 station_flags_msk;
	u8 add_immediate_ba_tid;
	u8 remove_immediate_ba_tid;
	__le16 add_immediate_ba_ssn;
	__le16 sleep_tx_count;
	__le16 sleep_state_flags;
	__le16 assoc_id;
	__le16 beamform_flags;
	__le32 tfd_queue_msk;
} __packed; /* ADD_STA_CMD_API_S_VER_7 */

/**
 * struct iwl_mvm_add_sta_key_cmd - add/modify sta key
 * ( REPLY_ADD_STA_KEY = 0x17 )
 * @sta_id: index of station in uCode's station table
 * @key_offset: key offset in key storage
 * @key_flags: type %iwl_sta_key_flag
 * @key: key material data
 * @key2: key material data
 * @rx_secur_seq_cnt: RX security sequence counter for the key
 * @tkip_rx_tsc_byte2: TSC[2] for key mix ph1 detection
 * @tkip_rx_ttak: 10-byte unicast TKIP TTAK for Rx
 */
struct iwl_mvm_add_sta_key_cmd {
	u8 sta_id;
	u8 key_offset;
	__le16 key_flags;
	u8 key[16];
	u8 key2[16];
	u8 rx_secur_seq_cnt[16];
	u8 tkip_rx_tsc_byte2;
	u8 reserved;
	__le16 tkip_rx_ttak[5];
} __packed; /* ADD_MODIFY_STA_KEY_API_S_VER_1 */

/**
 * enum iwl_mvm_add_sta_rsp_status - status in the response to ADD_STA command
 * @ADD_STA_SUCCESS: operation was executed successfully
 * @ADD_STA_STATIONS_OVERLOAD: no room left in the fw's station table
 * @ADD_STA_IMMEDIATE_BA_FAILURE: can't add Rx block ack session
 * @ADD_STA_MODIFY_NON_EXISTING_STA: driver requested to modify a station that
 *	doesn't exist.
 */
enum iwl_mvm_add_sta_rsp_status {
	ADD_STA_SUCCESS			= 0x1,
	ADD_STA_STATIONS_OVERLOAD	= 0x2,
	ADD_STA_IMMEDIATE_BA_FAILURE	= 0x4,
	ADD_STA_MODIFY_NON_EXISTING_STA	= 0x8,
};

/**
 * struct iwl_mvm_rm_sta_cmd - Add / modify a station in the fw's station table
 * ( REMOVE_STA = 0x19 )
 * @sta_id: the station id of the station to be removed
 */
struct iwl_mvm_rm_sta_cmd {
	u8 sta_id;
	u8 reserved[3];
} __packed; /* REMOVE_STA_CMD_API_S_VER_2 */

/**
 * struct iwl_mvm_mgmt_mcast_key_cmd
 * ( MGMT_MCAST_KEY = 0x1f )
 * @ctrl_flags: %iwl_sta_key_flag
 * @IGTK:
 * @K1: IGTK master key
 * @K2: IGTK sub key
 * @sta_id: station ID that support IGTK
 * @key_id:
 * @receive_seq_cnt: initial RSC/PN needed for replay check
 */
struct iwl_mvm_mgmt_mcast_key_cmd {
	__le32 ctrl_flags;
	u8 IGTK[16];
	u8 K1[16];
	u8 K2[16];
	__le32 key_id;
	__le32 sta_id;
	__le64 receive_seq_cnt;
} __packed; /* SEC_MGMT_MULTICAST_KEY_CMD_API_S_VER_1 */

struct iwl_mvm_wep_key {
	u8 key_index;
	u8 key_offset;
	__le16 reserved1;
	u8 key_size;
	u8 reserved2[3];
	u8 key[16];
} __packed;

struct iwl_mvm_wep_key_cmd {
	__le32 mac_id_n_color;
	u8 num_keys;
	u8 decryption_type;
	u8 flags;
	u8 reserved;
	struct iwl_mvm_wep_key wep_key[0];
} __packed; /* SEC_CURR_WEP_KEY_CMD_API_S_VER_2 */

/**
 * struct iwl_mvm_eosp_notification - EOSP notification from firmware
 * @remain_frame_count: # of frames remaining, non-zero if SP was cut
 *	short by GO absence
 * @sta_id: station ID
 */
struct iwl_mvm_eosp_notification {
	__le32 remain_frame_count;
	__le32 sta_id;
} __packed; /* UAPSD_EOSP_NTFY_API_S_VER_1 */

#endif /* __fw_api_sta_h__ */