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1 /******************************************************************************
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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.
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6  * GPL LICENSE SUMMARY
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8  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9  * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
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63  *****************************************************************************/
64 
65 #ifndef __fw_api_sta_h__
66 #define __fw_api_sta_h__
67 
68 /**
69  * enum iwl_sta_flags - flags for the ADD_STA host command
70  * @STA_FLG_REDUCED_TX_PWR_CTRL:
71  * @STA_FLG_REDUCED_TX_PWR_DATA:
72  * @STA_FLG_DISABLE_TX: set if TX should be disabled
73  * @STA_FLG_PS: set if STA is in Power Save
74  * @STA_FLG_INVALID: set if STA is invalid
75  * @STA_FLG_DLP_EN: Direct Link Protocol is enabled
76  * @STA_FLG_SET_ALL_KEYS: the current key applies to all key IDs
77  * @STA_FLG_DRAIN_FLOW: drain flow
78  * @STA_FLG_PAN: STA is for PAN interface
79  * @STA_FLG_CLASS_AUTH:
80  * @STA_FLG_CLASS_ASSOC:
81  * @STA_FLG_CLASS_MIMO_PROT:
82  * @STA_FLG_MAX_AGG_SIZE_MSK: maximal size for A-MPDU
83  * @STA_FLG_AGG_MPDU_DENS_MSK: maximal MPDU density for Tx aggregation
84  * @STA_FLG_FAT_EN_MSK: support for channel width (for Tx). This flag is
85  *	initialised by driver and can be updated by fw upon reception of
86  *	action frames that can change the channel width. When cleared the fw
87  *	will send all the frames in 20MHz even when FAT channel is requested.
88  * @STA_FLG_MIMO_EN_MSK: support for MIMO. This flag is initialised by the
89  *	driver and can be updated by fw upon reception of action frames.
90  * @STA_FLG_MFP_EN: Management Frame Protection
91  */
92 enum iwl_sta_flags {
93 	STA_FLG_REDUCED_TX_PWR_CTRL	= BIT(3),
94 	STA_FLG_REDUCED_TX_PWR_DATA	= BIT(6),
95 
96 	STA_FLG_DISABLE_TX		= BIT(4),
97 
98 	STA_FLG_PS			= BIT(8),
99 	STA_FLG_DRAIN_FLOW		= BIT(12),
100 	STA_FLG_PAN			= BIT(13),
101 	STA_FLG_CLASS_AUTH		= BIT(14),
102 	STA_FLG_CLASS_ASSOC		= BIT(15),
103 	STA_FLG_RTS_MIMO_PROT		= BIT(17),
104 
105 	STA_FLG_MAX_AGG_SIZE_SHIFT	= 19,
106 	STA_FLG_MAX_AGG_SIZE_8K		= (0 << STA_FLG_MAX_AGG_SIZE_SHIFT),
107 	STA_FLG_MAX_AGG_SIZE_16K	= (1 << STA_FLG_MAX_AGG_SIZE_SHIFT),
108 	STA_FLG_MAX_AGG_SIZE_32K	= (2 << STA_FLG_MAX_AGG_SIZE_SHIFT),
109 	STA_FLG_MAX_AGG_SIZE_64K	= (3 << STA_FLG_MAX_AGG_SIZE_SHIFT),
110 	STA_FLG_MAX_AGG_SIZE_128K	= (4 << STA_FLG_MAX_AGG_SIZE_SHIFT),
111 	STA_FLG_MAX_AGG_SIZE_256K	= (5 << STA_FLG_MAX_AGG_SIZE_SHIFT),
112 	STA_FLG_MAX_AGG_SIZE_512K	= (6 << STA_FLG_MAX_AGG_SIZE_SHIFT),
113 	STA_FLG_MAX_AGG_SIZE_1024K	= (7 << STA_FLG_MAX_AGG_SIZE_SHIFT),
114 	STA_FLG_MAX_AGG_SIZE_MSK	= (7 << STA_FLG_MAX_AGG_SIZE_SHIFT),
115 
116 	STA_FLG_AGG_MPDU_DENS_SHIFT	= 23,
117 	STA_FLG_AGG_MPDU_DENS_2US	= (4 << STA_FLG_AGG_MPDU_DENS_SHIFT),
118 	STA_FLG_AGG_MPDU_DENS_4US	= (5 << STA_FLG_AGG_MPDU_DENS_SHIFT),
119 	STA_FLG_AGG_MPDU_DENS_8US	= (6 << STA_FLG_AGG_MPDU_DENS_SHIFT),
120 	STA_FLG_AGG_MPDU_DENS_16US	= (7 << STA_FLG_AGG_MPDU_DENS_SHIFT),
121 	STA_FLG_AGG_MPDU_DENS_MSK	= (7 << STA_FLG_AGG_MPDU_DENS_SHIFT),
122 
123 	STA_FLG_FAT_EN_20MHZ		= (0 << 26),
124 	STA_FLG_FAT_EN_40MHZ		= (1 << 26),
125 	STA_FLG_FAT_EN_80MHZ		= (2 << 26),
126 	STA_FLG_FAT_EN_160MHZ		= (3 << 26),
127 	STA_FLG_FAT_EN_MSK		= (3 << 26),
128 
129 	STA_FLG_MIMO_EN_SISO		= (0 << 28),
130 	STA_FLG_MIMO_EN_MIMO2		= (1 << 28),
131 	STA_FLG_MIMO_EN_MIMO3		= (2 << 28),
132 	STA_FLG_MIMO_EN_MSK		= (3 << 28),
133 };
134 
135 /**
136  * enum iwl_sta_key_flag - key flags for the ADD_STA host command
137  * @STA_KEY_FLG_NO_ENC: no encryption
138  * @STA_KEY_FLG_WEP: WEP encryption algorithm
139  * @STA_KEY_FLG_CCM: CCMP encryption algorithm
140  * @STA_KEY_FLG_TKIP: TKIP encryption algorithm
141  * @STA_KEY_FLG_EXT: extended cipher algorithm (depends on the FW support)
142  * @STA_KEY_FLG_CMAC: CMAC encryption algorithm
143  * @STA_KEY_FLG_ENC_UNKNOWN: unknown encryption algorithm
144  * @STA_KEY_FLG_EN_MSK: mask for encryption algorithmi value
145  * @STA_KEY_FLG_WEP_KEY_MAP: wep is either a group key (0 - legacy WEP) or from
146  *	station info array (1 - n 1X mode)
147  * @STA_KEY_FLG_KEYID_MSK: the index of the key
148  * @STA_KEY_NOT_VALID: key is invalid
149  * @STA_KEY_FLG_WEP_13BYTES: set for 13 bytes WEP key
150  * @STA_KEY_MULTICAST: set for multical key
151  * @STA_KEY_MFP: key is used for Management Frame Protection
152  */
153 enum iwl_sta_key_flag {
154 	STA_KEY_FLG_NO_ENC		= (0 << 0),
155 	STA_KEY_FLG_WEP			= (1 << 0),
156 	STA_KEY_FLG_CCM			= (2 << 0),
157 	STA_KEY_FLG_TKIP		= (3 << 0),
158 	STA_KEY_FLG_EXT			= (4 << 0),
159 	STA_KEY_FLG_CMAC		= (6 << 0),
160 	STA_KEY_FLG_ENC_UNKNOWN		= (7 << 0),
161 	STA_KEY_FLG_EN_MSK		= (7 << 0),
162 
163 	STA_KEY_FLG_WEP_KEY_MAP		= BIT(3),
164 	STA_KEY_FLG_KEYID_POS		 = 8,
165 	STA_KEY_FLG_KEYID_MSK		= (3 << STA_KEY_FLG_KEYID_POS),
166 	STA_KEY_NOT_VALID		= BIT(11),
167 	STA_KEY_FLG_WEP_13BYTES		= BIT(12),
168 	STA_KEY_MULTICAST		= BIT(14),
169 	STA_KEY_MFP			= BIT(15),
170 };
171 
172 /**
173  * enum iwl_sta_modify_flag - indicate to the fw what flag are being changed
174  * @STA_MODIFY_KEY: this command modifies %key
175  * @STA_MODIFY_TID_DISABLE_TX: this command modifies %tid_disable_tx
176  * @STA_MODIFY_TX_RATE: unused
177  * @STA_MODIFY_ADD_BA_TID: this command modifies %add_immediate_ba_tid
178  * @STA_MODIFY_REMOVE_BA_TID: this command modifies %remove_immediate_ba_tid
179  * @STA_MODIFY_SLEEPING_STA_TX_COUNT: this command modifies %sleep_tx_count
180  * @STA_MODIFY_PROT_TH:
181  * @STA_MODIFY_QUEUES: modify the queues used by this station
182  */
183 enum iwl_sta_modify_flag {
184 	STA_MODIFY_KEY				= BIT(0),
185 	STA_MODIFY_TID_DISABLE_TX		= BIT(1),
186 	STA_MODIFY_TX_RATE			= BIT(2),
187 	STA_MODIFY_ADD_BA_TID			= BIT(3),
188 	STA_MODIFY_REMOVE_BA_TID		= BIT(4),
189 	STA_MODIFY_SLEEPING_STA_TX_COUNT	= BIT(5),
190 	STA_MODIFY_PROT_TH			= BIT(6),
191 	STA_MODIFY_QUEUES			= BIT(7),
192 };
193 
194 #define STA_MODE_MODIFY	1
195 
196 /**
197  * enum iwl_sta_sleep_flag - type of sleep of the station
198  * @STA_SLEEP_STATE_AWAKE:
199  * @STA_SLEEP_STATE_PS_POLL:
200  * @STA_SLEEP_STATE_UAPSD:
201  * @STA_SLEEP_STATE_MOREDATA: set more-data bit on
202  *	(last) released frame
203  */
204 enum iwl_sta_sleep_flag {
205 	STA_SLEEP_STATE_AWAKE		= 0,
206 	STA_SLEEP_STATE_PS_POLL		= BIT(0),
207 	STA_SLEEP_STATE_UAPSD		= BIT(1),
208 	STA_SLEEP_STATE_MOREDATA	= BIT(2),
209 };
210 
211 /* STA ID and color bits definitions */
212 #define STA_ID_SEED		(0x0f)
213 #define STA_ID_POS		(0)
214 #define STA_ID_MSK		(STA_ID_SEED << STA_ID_POS)
215 
216 #define STA_COLOR_SEED		(0x7)
217 #define STA_COLOR_POS		(4)
218 #define STA_COLOR_MSK		(STA_COLOR_SEED << STA_COLOR_POS)
219 
220 #define STA_ID_N_COLOR_GET_COLOR(id_n_color) \
221 	(((id_n_color) & STA_COLOR_MSK) >> STA_COLOR_POS)
222 #define STA_ID_N_COLOR_GET_ID(id_n_color)    \
223 	(((id_n_color) & STA_ID_MSK) >> STA_ID_POS)
224 
225 #define STA_KEY_MAX_NUM (16)
226 #define STA_KEY_IDX_INVALID (0xff)
227 #define STA_KEY_MAX_DATA_KEY_NUM (4)
228 #define IWL_MAX_GLOBAL_KEYS (4)
229 #define STA_KEY_LEN_WEP40 (5)
230 #define STA_KEY_LEN_WEP104 (13)
231 
232 /**
233  * struct iwl_mvm_keyinfo - key information
234  * @key_flags: type %iwl_sta_key_flag
235  * @tkip_rx_tsc_byte2: TSC[2] for key mix ph1 detection
236  * @tkip_rx_ttak: 10-byte unicast TKIP TTAK for Rx
237  * @key_offset: key offset in the fw's key table
238  * @key: 16-byte unicast decryption key
239  * @tx_secur_seq_cnt: initial RSC / PN needed for replay check
240  * @hw_tkip_mic_rx_key: byte: MIC Rx Key - used for TKIP only
241  * @hw_tkip_mic_tx_key: byte: MIC Tx Key - used for TKIP only
242  */
243 struct iwl_mvm_keyinfo {
244 	__le16 key_flags;
245 	u8 tkip_rx_tsc_byte2;
246 	u8 reserved1;
247 	__le16 tkip_rx_ttak[5];
248 	u8 key_offset;
249 	u8 reserved2;
250 	u8 key[16];
251 	__le64 tx_secur_seq_cnt;
252 	__le64 hw_tkip_mic_rx_key;
253 	__le64 hw_tkip_mic_tx_key;
254 } __packed;
255 
256 /**
257  * struct iwl_mvm_add_sta_cmd - Add/modify a station in the fw's sta table.
258  * ( REPLY_ADD_STA = 0x18 )
259  * @add_modify: 1: modify existing, 0: add new station
260  * @awake_acs:
261  * @tid_disable_tx: is tid BIT(tid) enabled for Tx. Clear BIT(x) to enable
262  *	AMPDU for tid x. Set %STA_MODIFY_TID_DISABLE_TX to change this field.
263  * @mac_id_n_color: the Mac context this station belongs to
264  * @addr[ETH_ALEN]: station's MAC address
265  * @sta_id: index of station in uCode's station table
266  * @modify_mask: STA_MODIFY_*, selects which parameters to modify vs. leave
267  *	alone. 1 - modify, 0 - don't change.
268  * @station_flags: look at %iwl_sta_flags
269  * @station_flags_msk: what of %station_flags have changed
270  * @add_immediate_ba_tid: tid for which to add block-ack support (Rx)
271  *	Set %STA_MODIFY_ADD_BA_TID to use this field, and also set
272  *	add_immediate_ba_ssn.
273  * @remove_immediate_ba_tid: tid for which to remove block-ack support (Rx)
274  *	Set %STA_MODIFY_REMOVE_BA_TID to use this field
275  * @add_immediate_ba_ssn: ssn for the Rx block-ack session. Used together with
276  *	add_immediate_ba_tid.
277  * @sleep_tx_count: number of packets to transmit to station even though it is
278  *	asleep. Used to synchronise PS-poll and u-APSD responses while ucode
279  *	keeps track of STA sleep state.
280  * @sleep_state_flags: Look at %iwl_sta_sleep_flag.
281  * @assoc_id: assoc_id to be sent in VHT PLCP (9-bit), for grp use 0, for AP
282  *	mac-addr.
283  * @beamform_flags: beam forming controls
284  * @tfd_queue_msk: tfd queues used by this station
285  *
286  * The device contains an internal table of per-station information, with info
287  * on security keys, aggregation parameters, and Tx rates for initial Tx
288  * attempt and any retries (set by REPLY_TX_LINK_QUALITY_CMD).
289  *
290  * ADD_STA sets up the table entry for one station, either creating a new
291  * entry, or modifying a pre-existing one.
292  */
293 struct iwl_mvm_add_sta_cmd {
294 	u8 add_modify;
295 	u8 awake_acs;
296 	__le16 tid_disable_tx;
297 	__le32 mac_id_n_color;
298 	u8 addr[ETH_ALEN];	/* _STA_ID_MODIFY_INFO_API_S_VER_1 */
299 	__le16 reserved2;
300 	u8 sta_id;
301 	u8 modify_mask;
302 	__le16 reserved3;
303 	__le32 station_flags;
304 	__le32 station_flags_msk;
305 	u8 add_immediate_ba_tid;
306 	u8 remove_immediate_ba_tid;
307 	__le16 add_immediate_ba_ssn;
308 	__le16 sleep_tx_count;
309 	__le16 sleep_state_flags;
310 	__le16 assoc_id;
311 	__le16 beamform_flags;
312 	__le32 tfd_queue_msk;
313 } __packed; /* ADD_STA_CMD_API_S_VER_7 */
314 
315 /**
316  * struct iwl_mvm_add_sta_key_cmd - add/modify sta key
317  * ( REPLY_ADD_STA_KEY = 0x17 )
318  * @sta_id: index of station in uCode's station table
319  * @key_offset: key offset in key storage
320  * @key_flags: type %iwl_sta_key_flag
321  * @key: key material data
322  * @key2: key material data
323  * @rx_secur_seq_cnt: RX security sequence counter for the key
324  * @tkip_rx_tsc_byte2: TSC[2] for key mix ph1 detection
325  * @tkip_rx_ttak: 10-byte unicast TKIP TTAK for Rx
326  */
327 struct iwl_mvm_add_sta_key_cmd {
328 	u8 sta_id;
329 	u8 key_offset;
330 	__le16 key_flags;
331 	u8 key[16];
332 	u8 key2[16];
333 	u8 rx_secur_seq_cnt[16];
334 	u8 tkip_rx_tsc_byte2;
335 	u8 reserved;
336 	__le16 tkip_rx_ttak[5];
337 } __packed; /* ADD_MODIFY_STA_KEY_API_S_VER_1 */
338 
339 /**
340  * enum iwl_mvm_add_sta_rsp_status - status in the response to ADD_STA command
341  * @ADD_STA_SUCCESS: operation was executed successfully
342  * @ADD_STA_STATIONS_OVERLOAD: no room left in the fw's station table
343  * @ADD_STA_IMMEDIATE_BA_FAILURE: can't add Rx block ack session
344  * @ADD_STA_MODIFY_NON_EXISTING_STA: driver requested to modify a station that
345  *	doesn't exist.
346  */
347 enum iwl_mvm_add_sta_rsp_status {
348 	ADD_STA_SUCCESS			= 0x1,
349 	ADD_STA_STATIONS_OVERLOAD	= 0x2,
350 	ADD_STA_IMMEDIATE_BA_FAILURE	= 0x4,
351 	ADD_STA_MODIFY_NON_EXISTING_STA	= 0x8,
352 };
353 
354 /**
355  * struct iwl_mvm_rm_sta_cmd - Add / modify a station in the fw's station table
356  * ( REMOVE_STA = 0x19 )
357  * @sta_id: the station id of the station to be removed
358  */
359 struct iwl_mvm_rm_sta_cmd {
360 	u8 sta_id;
361 	u8 reserved[3];
362 } __packed; /* REMOVE_STA_CMD_API_S_VER_2 */
363 
364 /**
365  * struct iwl_mvm_mgmt_mcast_key_cmd
366  * ( MGMT_MCAST_KEY = 0x1f )
367  * @ctrl_flags: %iwl_sta_key_flag
368  * @IGTK:
369  * @K1: unused
370  * @K2: unused
371  * @sta_id: station ID that support IGTK
372  * @key_id:
373  * @receive_seq_cnt: initial RSC/PN needed for replay check
374  */
375 struct iwl_mvm_mgmt_mcast_key_cmd {
376 	__le32 ctrl_flags;
377 	u8 IGTK[16];
378 	u8 K1[16];
379 	u8 K2[16];
380 	__le32 key_id;
381 	__le32 sta_id;
382 	__le64 receive_seq_cnt;
383 } __packed; /* SEC_MGMT_MULTICAST_KEY_CMD_API_S_VER_1 */
384 
385 struct iwl_mvm_wep_key {
386 	u8 key_index;
387 	u8 key_offset;
388 	__le16 reserved1;
389 	u8 key_size;
390 	u8 reserved2[3];
391 	u8 key[16];
392 } __packed;
393 
394 struct iwl_mvm_wep_key_cmd {
395 	__le32 mac_id_n_color;
396 	u8 num_keys;
397 	u8 decryption_type;
398 	u8 flags;
399 	u8 reserved;
400 	struct iwl_mvm_wep_key wep_key[0];
401 } __packed; /* SEC_CURR_WEP_KEY_CMD_API_S_VER_2 */
402 
403 /**
404  * struct iwl_mvm_eosp_notification - EOSP notification from firmware
405  * @remain_frame_count: # of frames remaining, non-zero if SP was cut
406  *	short by GO absence
407  * @sta_id: station ID
408  */
409 struct iwl_mvm_eosp_notification {
410 	__le32 remain_frame_count;
411 	__le32 sta_id;
412 } __packed; /* UAPSD_EOSP_NTFY_API_S_VER_1 */
413 
414 #endif /* __fw_api_sta_h__ */
415