1 /*
2  * Copyright (c) 2010-2011 Atheros Communications Inc.
3  * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.
4  *
5  * Permission to use, copy, modify, and/or distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  */
17 
18 #ifndef CORE_H
19 #define CORE_H
20 
21 #include <linux/etherdevice.h>
22 #include <linux/rtnetlink.h>
23 #include <linux/firmware.h>
24 #include <linux/sched.h>
25 #include <linux/circ_buf.h>
26 #include <net/cfg80211.h>
27 #include "htc.h"
28 #include "wmi.h"
29 #include "bmi.h"
30 #include "target.h"
31 
32 #define MAX_ATH6KL                        1
33 #define ATH6KL_MAX_RX_BUFFERS             16
34 #define ATH6KL_BUFFER_SIZE                1664
35 #define ATH6KL_MAX_AMSDU_RX_BUFFERS       4
36 #define ATH6KL_AMSDU_REFILL_THRESHOLD     3
37 #define ATH6KL_AMSDU_BUFFER_SIZE     (WMI_MAX_AMSDU_RX_DATA_FRAME_LENGTH + 128)
38 #define MAX_MSDU_SUBFRAME_PAYLOAD_LEN	1508
39 #define MIN_MSDU_SUBFRAME_PAYLOAD_LEN	46
40 
41 #define USER_SAVEDKEYS_STAT_INIT     0
42 #define USER_SAVEDKEYS_STAT_RUN      1
43 
44 #define ATH6KL_TX_TIMEOUT      10
45 #define ATH6KL_MAX_ENDPOINTS   4
46 #define MAX_NODE_NUM           15
47 
48 #define ATH6KL_APSD_ALL_FRAME		0xFFFF
49 #define ATH6KL_APSD_NUM_OF_AC		0x4
50 #define ATH6KL_APSD_FRAME_MASK		0xF
51 
52 /* Extra bytes for htc header alignment */
53 #define ATH6KL_HTC_ALIGN_BYTES 3
54 
55 /* MAX_HI_COOKIE_NUM are reserved for high priority traffic */
56 #define MAX_DEF_COOKIE_NUM                180
57 #define MAX_HI_COOKIE_NUM                 18	/* 10% of MAX_COOKIE_NUM */
58 #define MAX_COOKIE_NUM                 (MAX_DEF_COOKIE_NUM + MAX_HI_COOKIE_NUM)
59 
60 #define MAX_DEFAULT_SEND_QUEUE_DEPTH      (MAX_DEF_COOKIE_NUM / WMM_NUM_AC)
61 
62 #define DISCON_TIMER_INTVAL               10000  /* in msec */
63 
64 /* Channel dwell time in fg scan */
65 #define ATH6KL_FG_SCAN_INTERVAL		50 /* in ms */
66 
67 /* includes also the null byte */
68 #define ATH6KL_FIRMWARE_MAGIC               "QCA-ATH6KL"
69 
70 enum ath6kl_fw_ie_type {
71 	ATH6KL_FW_IE_FW_VERSION = 0,
72 	ATH6KL_FW_IE_TIMESTAMP = 1,
73 	ATH6KL_FW_IE_OTP_IMAGE = 2,
74 	ATH6KL_FW_IE_FW_IMAGE = 3,
75 	ATH6KL_FW_IE_PATCH_IMAGE = 4,
76 	ATH6KL_FW_IE_RESERVED_RAM_SIZE = 5,
77 	ATH6KL_FW_IE_CAPABILITIES = 6,
78 	ATH6KL_FW_IE_PATCH_ADDR = 7,
79 	ATH6KL_FW_IE_BOARD_ADDR = 8,
80 	ATH6KL_FW_IE_VIF_MAX = 9,
81 };
82 
83 enum ath6kl_fw_capability {
84 	ATH6KL_FW_CAPABILITY_HOST_P2P = 0,
85 	ATH6KL_FW_CAPABILITY_SCHED_SCAN = 1,
86 
87 	/*
88 	 * Firmware is capable of supporting P2P mgmt operations on a
89 	 * station interface. After group formation, the station
90 	 * interface will become a P2P client/GO interface as the case may be
91 	 */
92 	ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX,
93 
94 	/* this needs to be last */
95 	ATH6KL_FW_CAPABILITY_MAX,
96 };
97 
98 #define ATH6KL_CAPABILITY_LEN (ALIGN(ATH6KL_FW_CAPABILITY_MAX, 32) / 32)
99 
100 struct ath6kl_fw_ie {
101 	__le32 id;
102 	__le32 len;
103 	u8 data[0];
104 };
105 
106 #define ATH6KL_FW_API2_FILE "fw-2.bin"
107 #define ATH6KL_FW_API3_FILE "fw-3.bin"
108 
109 /* AR6003 1.0 definitions */
110 #define AR6003_HW_1_0_VERSION                 0x300002ba
111 
112 /* AR6003 2.0 definitions */
113 #define AR6003_HW_2_0_VERSION                 0x30000384
114 #define AR6003_HW_2_0_PATCH_DOWNLOAD_ADDRESS  0x57e910
115 #define AR6003_HW_2_0_FW_DIR			"ath6k/AR6003/hw2.0"
116 #define AR6003_HW_2_0_OTP_FILE			"otp.bin.z77"
117 #define AR6003_HW_2_0_FIRMWARE_FILE		"athwlan.bin.z77"
118 #define AR6003_HW_2_0_TCMD_FIRMWARE_FILE	"athtcmd_ram.bin"
119 #define AR6003_HW_2_0_PATCH_FILE		"data.patch.bin"
120 #define AR6003_HW_2_0_BOARD_DATA_FILE "ath6k/AR6003/hw2.0/bdata.bin"
121 #define AR6003_HW_2_0_DEFAULT_BOARD_DATA_FILE \
122 			"ath6k/AR6003/hw2.0/bdata.SD31.bin"
123 
124 /* AR6003 3.0 definitions */
125 #define AR6003_HW_2_1_1_VERSION                 0x30000582
126 #define AR6003_HW_2_1_1_FW_DIR			"ath6k/AR6003/hw2.1.1"
127 #define AR6003_HW_2_1_1_OTP_FILE		"otp.bin"
128 #define AR6003_HW_2_1_1_FIRMWARE_FILE		"athwlan.bin"
129 #define AR6003_HW_2_1_1_TCMD_FIRMWARE_FILE	"athtcmd_ram.bin"
130 #define AR6003_HW_2_1_1_UTF_FIRMWARE_FILE	"utf.bin"
131 #define AR6003_HW_2_1_1_TESTSCRIPT_FILE	"nullTestFlow.bin"
132 #define AR6003_HW_2_1_1_PATCH_FILE		"data.patch.bin"
133 #define AR6003_HW_2_1_1_BOARD_DATA_FILE "ath6k/AR6003/hw2.1.1/bdata.bin"
134 #define AR6003_HW_2_1_1_DEFAULT_BOARD_DATA_FILE	\
135 			"ath6k/AR6003/hw2.1.1/bdata.SD31.bin"
136 
137 /* AR6004 1.0 definitions */
138 #define AR6004_HW_1_0_VERSION                 0x30000623
139 #define AR6004_HW_1_0_FW_DIR			"ath6k/AR6004/hw1.0"
140 #define AR6004_HW_1_0_FIRMWARE_FILE		"fw.ram.bin"
141 #define AR6004_HW_1_0_BOARD_DATA_FILE         "ath6k/AR6004/hw1.0/bdata.bin"
142 #define AR6004_HW_1_0_DEFAULT_BOARD_DATA_FILE \
143 	"ath6k/AR6004/hw1.0/bdata.DB132.bin"
144 
145 /* AR6004 1.1 definitions */
146 #define AR6004_HW_1_1_VERSION                 0x30000001
147 #define AR6004_HW_1_1_FW_DIR			"ath6k/AR6004/hw1.1"
148 #define AR6004_HW_1_1_FIRMWARE_FILE		"fw.ram.bin"
149 #define AR6004_HW_1_1_BOARD_DATA_FILE         "ath6k/AR6004/hw1.1/bdata.bin"
150 #define AR6004_HW_1_1_DEFAULT_BOARD_DATA_FILE \
151 	"ath6k/AR6004/hw1.1/bdata.DB132.bin"
152 
153 /* Per STA data, used in AP mode */
154 #define STA_PS_AWAKE		BIT(0)
155 #define	STA_PS_SLEEP		BIT(1)
156 #define	STA_PS_POLLED		BIT(2)
157 #define STA_PS_APSD_TRIGGER     BIT(3)
158 #define STA_PS_APSD_EOSP        BIT(4)
159 
160 /* HTC TX packet tagging definitions */
161 #define ATH6KL_CONTROL_PKT_TAG    HTC_TX_PACKET_TAG_USER_DEFINED
162 #define ATH6KL_DATA_PKT_TAG       (ATH6KL_CONTROL_PKT_TAG + 1)
163 
164 #define AR6003_CUST_DATA_SIZE 16
165 
166 #define AGGR_WIN_IDX(x, y)          ((x) % (y))
167 #define AGGR_INCR_IDX(x, y)         AGGR_WIN_IDX(((x) + 1), (y))
168 #define AGGR_DCRM_IDX(x, y)         AGGR_WIN_IDX(((x) - 1), (y))
169 #define ATH6KL_MAX_SEQ_NO		0xFFF
170 #define ATH6KL_NEXT_SEQ_NO(x)		(((x) + 1) & ATH6KL_MAX_SEQ_NO)
171 
172 #define NUM_OF_TIDS         8
173 #define AGGR_SZ_DEFAULT     8
174 
175 #define AGGR_WIN_SZ_MIN     2
176 #define AGGR_WIN_SZ_MAX     8
177 
178 #define TID_WINDOW_SZ(_x)   ((_x) << 1)
179 
180 #define AGGR_NUM_OF_FREE_NETBUFS    16
181 
182 #define AGGR_RX_TIMEOUT     400	/* in ms */
183 
184 #define WMI_TIMEOUT (2 * HZ)
185 
186 #define MBOX_YIELD_LIMIT 99
187 
188 #define ATH6KL_DEFAULT_LISTEN_INTVAL	100 /* in TUs */
189 #define ATH6KL_DEFAULT_BMISS_TIME	1500
190 #define ATH6KL_MAX_WOW_LISTEN_INTL	300 /* in TUs */
191 #define ATH6KL_MAX_BMISS_TIME		5000
192 
193 /* configuration lags */
194 /*
195  * ATH6KL_CONF_IGNORE_ERP_BARKER: Ignore the barker premable in
196  * ERP IE of beacon to determine the short premable support when
197  * sending (Re)Assoc req.
198  * ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN: Don't send the power
199  * module state transition failure events which happen during
200  * scan, to the host.
201  */
202 #define ATH6KL_CONF_IGNORE_ERP_BARKER		BIT(0)
203 #define ATH6KL_CONF_IGNORE_PS_FAIL_EVT_IN_SCAN  BIT(1)
204 #define ATH6KL_CONF_ENABLE_11N			BIT(2)
205 #define ATH6KL_CONF_ENABLE_TX_BURST		BIT(3)
206 #define ATH6KL_CONF_UART_DEBUG			BIT(4)
207 
208 enum wlan_low_pwr_state {
209 	WLAN_POWER_STATE_ON,
210 	WLAN_POWER_STATE_CUT_PWR,
211 	WLAN_POWER_STATE_DEEP_SLEEP,
212 	WLAN_POWER_STATE_WOW
213 };
214 
215 enum sme_state {
216 	SME_DISCONNECTED,
217 	SME_CONNECTING,
218 	SME_CONNECTED
219 };
220 
221 struct skb_hold_q {
222 	struct sk_buff *skb;
223 	bool is_amsdu;
224 	u16 seq_no;
225 };
226 
227 struct rxtid {
228 	bool aggr;
229 	bool progress;
230 	bool timer_mon;
231 	u16 win_sz;
232 	u16 seq_next;
233 	u32 hold_q_sz;
234 	struct skb_hold_q *hold_q;
235 	struct sk_buff_head q;
236 
237 	/*
238 	 * FIXME: No clue what this should protect. Apparently it should
239 	 * protect some of the fields above but they are also accessed
240 	 * without taking the lock.
241 	 */
242 	spinlock_t lock;
243 };
244 
245 struct rxtid_stats {
246 	u32 num_into_aggr;
247 	u32 num_dups;
248 	u32 num_oow;
249 	u32 num_mpdu;
250 	u32 num_amsdu;
251 	u32 num_delivered;
252 	u32 num_timeouts;
253 	u32 num_hole;
254 	u32 num_bar;
255 };
256 
257 struct aggr_info_conn {
258 	u8 aggr_sz;
259 	u8 timer_scheduled;
260 	struct timer_list timer;
261 	struct net_device *dev;
262 	struct rxtid rx_tid[NUM_OF_TIDS];
263 	struct rxtid_stats stat[NUM_OF_TIDS];
264 	struct aggr_info *aggr_info;
265 };
266 
267 struct aggr_info {
268 	struct aggr_info_conn *aggr_conn;
269 	struct sk_buff_head rx_amsdu_freeq;
270 };
271 
272 struct ath6kl_wep_key {
273 	u8 key_index;
274 	u8 key_len;
275 	u8 key[64];
276 };
277 
278 #define ATH6KL_KEY_SEQ_LEN 8
279 
280 struct ath6kl_key {
281 	u8 key[WLAN_MAX_KEY_LEN];
282 	u8 key_len;
283 	u8 seq[ATH6KL_KEY_SEQ_LEN];
284 	u8 seq_len;
285 	u32 cipher;
286 };
287 
288 struct ath6kl_node_mapping {
289 	u8 mac_addr[ETH_ALEN];
290 	u8 ep_id;
291 	u8 tx_pend;
292 };
293 
294 struct ath6kl_cookie {
295 	struct sk_buff *skb;
296 	u32 map_no;
297 	struct htc_packet htc_pkt;
298 	struct ath6kl_cookie *arc_list_next;
299 };
300 
301 struct ath6kl_mgmt_buff {
302 	struct list_head list;
303 	u32 freq;
304 	u32 wait;
305 	u32 id;
306 	bool no_cck;
307 	size_t len;
308 	u8 buf[0];
309 };
310 
311 struct ath6kl_sta {
312 	u16 sta_flags;
313 	u8 mac[ETH_ALEN];
314 	u8 aid;
315 	u8 keymgmt;
316 	u8 ucipher;
317 	u8 auth;
318 	u8 wpa_ie[ATH6KL_MAX_IE];
319 	struct sk_buff_head psq;
320 
321 	/* protects psq, mgmt_psq, apsdq, and mgmt_psq_len fields */
322 	spinlock_t psq_lock;
323 
324 	struct list_head mgmt_psq;
325 	size_t mgmt_psq_len;
326 	u8 apsd_info;
327 	struct sk_buff_head apsdq;
328 	struct aggr_info_conn *aggr_conn;
329 };
330 
331 struct ath6kl_version {
332 	u32 target_ver;
333 	u32 wlan_ver;
334 	u32 abi_ver;
335 };
336 
337 struct ath6kl_bmi {
338 	u32 cmd_credits;
339 	bool done_sent;
340 	u8 *cmd_buf;
341 	u32 max_data_size;
342 	u32 max_cmd_size;
343 };
344 
345 struct target_stats {
346 	u64 tx_pkt;
347 	u64 tx_byte;
348 	u64 tx_ucast_pkt;
349 	u64 tx_ucast_byte;
350 	u64 tx_mcast_pkt;
351 	u64 tx_mcast_byte;
352 	u64 tx_bcast_pkt;
353 	u64 tx_bcast_byte;
354 	u64 tx_rts_success_cnt;
355 	u64 tx_pkt_per_ac[4];
356 
357 	u64 tx_err;
358 	u64 tx_fail_cnt;
359 	u64 tx_retry_cnt;
360 	u64 tx_mult_retry_cnt;
361 	u64 tx_rts_fail_cnt;
362 
363 	u64 rx_pkt;
364 	u64 rx_byte;
365 	u64 rx_ucast_pkt;
366 	u64 rx_ucast_byte;
367 	u64 rx_mcast_pkt;
368 	u64 rx_mcast_byte;
369 	u64 rx_bcast_pkt;
370 	u64 rx_bcast_byte;
371 	u64 rx_frgment_pkt;
372 
373 	u64 rx_err;
374 	u64 rx_crc_err;
375 	u64 rx_key_cache_miss;
376 	u64 rx_decrypt_err;
377 	u64 rx_dupl_frame;
378 
379 	u64 tkip_local_mic_fail;
380 	u64 tkip_cnter_measures_invoked;
381 	u64 tkip_replays;
382 	u64 tkip_fmt_err;
383 	u64 ccmp_fmt_err;
384 	u64 ccmp_replays;
385 
386 	u64 pwr_save_fail_cnt;
387 
388 	u64 cs_bmiss_cnt;
389 	u64 cs_low_rssi_cnt;
390 	u64 cs_connect_cnt;
391 	u64 cs_discon_cnt;
392 
393 	s32 tx_ucast_rate;
394 	s32 rx_ucast_rate;
395 
396 	u32 lq_val;
397 
398 	u32 wow_pkt_dropped;
399 	u16 wow_evt_discarded;
400 
401 	s16 noise_floor_calib;
402 	s16 cs_rssi;
403 	s16 cs_ave_beacon_rssi;
404 	u8 cs_ave_beacon_snr;
405 	u8 cs_last_roam_msec;
406 	u8 cs_snr;
407 
408 	u8 wow_host_pkt_wakeups;
409 	u8 wow_host_evt_wakeups;
410 
411 	u32 arp_received;
412 	u32 arp_matched;
413 	u32 arp_replied;
414 };
415 
416 struct ath6kl_mbox_info {
417 	u32 htc_addr;
418 	u32 htc_ext_addr;
419 	u32 htc_ext_sz;
420 
421 	u32 block_size;
422 
423 	u32 gmbox_addr;
424 
425 	u32 gmbox_sz;
426 };
427 
428 /*
429  * 802.11i defines an extended IV for use with non-WEP ciphers.
430  * When the EXTIV bit is set in the key id byte an additional
431  * 4 bytes immediately follow the IV for TKIP.  For CCMP the
432  * EXTIV bit is likewise set but the 8 bytes represent the
433  * CCMP header rather than IV+extended-IV.
434  */
435 
436 #define ATH6KL_KEYBUF_SIZE 16
437 #define ATH6KL_MICBUF_SIZE (8+8)	/* space for both tx and rx */
438 
439 #define ATH6KL_KEY_XMIT  0x01
440 #define ATH6KL_KEY_RECV  0x02
441 #define ATH6KL_KEY_DEFAULT   0x80	/* default xmit key */
442 
443 /* Initial group key for AP mode */
444 struct ath6kl_req_key {
445 	bool valid;
446 	u8 key_index;
447 	int key_type;
448 	u8 key[WLAN_MAX_KEY_LEN];
449 	u8 key_len;
450 };
451 
452 enum ath6kl_hif_type {
453 	ATH6KL_HIF_TYPE_SDIO,
454 	ATH6KL_HIF_TYPE_USB,
455 };
456 
457 /* Max number of filters that hw supports */
458 #define ATH6K_MAX_MC_FILTERS_PER_LIST 7
459 struct ath6kl_mc_filter {
460 	struct list_head list;
461 	char hw_addr[ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE];
462 };
463 
464 /*
465  * Driver's maximum limit, note that some firmwares support only one vif
466  * and the runtime (current) limit must be checked from ar->vif_max.
467  */
468 #define ATH6KL_VIF_MAX	3
469 
470 /* vif flags info */
471 enum ath6kl_vif_state {
472 	CONNECTED,
473 	CONNECT_PEND,
474 	WMM_ENABLED,
475 	NETQ_STOPPED,
476 	DTIM_EXPIRED,
477 	NETDEV_REGISTERED,
478 	CLEAR_BSSFILTER_ON_BEACON,
479 	DTIM_PERIOD_AVAIL,
480 	WLAN_ENABLED,
481 	STATS_UPDATE_PEND,
482 	HOST_SLEEP_MODE_CMD_PROCESSED,
483 };
484 
485 struct ath6kl_vif {
486 	struct list_head list;
487 	struct wireless_dev wdev;
488 	struct net_device *ndev;
489 	struct ath6kl *ar;
490 	/* Lock to protect vif specific net_stats and flags */
491 	spinlock_t if_lock;
492 	u8 fw_vif_idx;
493 	unsigned long flags;
494 	int ssid_len;
495 	u8 ssid[IEEE80211_MAX_SSID_LEN];
496 	u8 dot11_auth_mode;
497 	u8 auth_mode;
498 	u8 prwise_crypto;
499 	u8 prwise_crypto_len;
500 	u8 grp_crypto;
501 	u8 grp_crypto_len;
502 	u8 def_txkey_index;
503 	u8 next_mode;
504 	u8 nw_type;
505 	u8 bssid[ETH_ALEN];
506 	u8 req_bssid[ETH_ALEN];
507 	u16 ch_hint;
508 	u16 bss_ch;
509 	struct ath6kl_wep_key wep_key_list[WMI_MAX_KEY_INDEX + 1];
510 	struct ath6kl_key keys[WMI_MAX_KEY_INDEX + 1];
511 	struct aggr_info *aggr_cntxt;
512 
513 	struct timer_list disconnect_timer;
514 	struct timer_list sched_scan_timer;
515 
516 	struct cfg80211_scan_request *scan_req;
517 	enum sme_state sme_state;
518 	int reconnect_flag;
519 	u32 last_roc_id;
520 	u32 last_cancel_roc_id;
521 	u32 send_action_id;
522 	bool probe_req_report;
523 	u16 next_chan;
524 	u16 assoc_bss_beacon_int;
525 	u16 listen_intvl_t;
526 	u16 bmiss_time_t;
527 	u8 assoc_bss_dtim_period;
528 	struct net_device_stats net_stats;
529 	struct target_stats target_stats;
530 
531 	struct list_head mc_filter;
532 };
533 
534 #define WOW_LIST_ID		0
535 #define WOW_HOST_REQ_DELAY	500 /* ms */
536 
537 #define ATH6KL_SCHED_SCAN_RESULT_DELAY 5000 /* ms */
538 
539 /* Flag info */
540 enum ath6kl_dev_state {
541 	WMI_ENABLED,
542 	WMI_READY,
543 	WMI_CTRL_EP_FULL,
544 	TESTMODE,
545 	DESTROY_IN_PROGRESS,
546 	SKIP_SCAN,
547 	ROAM_TBL_PEND,
548 	FIRST_BOOT,
549 };
550 
551 enum ath6kl_state {
552 	ATH6KL_STATE_OFF,
553 	ATH6KL_STATE_ON,
554 	ATH6KL_STATE_SUSPENDING,
555 	ATH6KL_STATE_RESUMING,
556 	ATH6KL_STATE_DEEPSLEEP,
557 	ATH6KL_STATE_CUTPOWER,
558 	ATH6KL_STATE_WOW,
559 	ATH6KL_STATE_SCHED_SCAN,
560 };
561 
562 struct ath6kl {
563 	struct device *dev;
564 	struct wiphy *wiphy;
565 
566 	enum ath6kl_state state;
567 	unsigned int testmode;
568 
569 	struct ath6kl_bmi bmi;
570 	const struct ath6kl_hif_ops *hif_ops;
571 	struct wmi *wmi;
572 	int tx_pending[ENDPOINT_MAX];
573 	int total_tx_data_pend;
574 	struct htc_target *htc_target;
575 	enum ath6kl_hif_type hif_type;
576 	void *hif_priv;
577 	struct list_head vif_list;
578 	/* Lock to avoid race in vif_list entries among add/del/traverse */
579 	spinlock_t list_lock;
580 	u8 num_vif;
581 	unsigned int vif_max;
582 	u8 max_norm_iface;
583 	u8 avail_idx_map;
584 
585 	/*
586 	 * Protects at least amsdu_rx_buffer_queue, ath6kl_alloc_cookie()
587 	 * calls, tx_pending and total_tx_data_pend.
588 	 */
589 	spinlock_t lock;
590 
591 	struct semaphore sem;
592 	u8 lrssi_roam_threshold;
593 	struct ath6kl_version version;
594 	u32 target_type;
595 	u8 tx_pwr;
596 	struct ath6kl_node_mapping node_map[MAX_NODE_NUM];
597 	u8 ibss_ps_enable;
598 	bool ibss_if_active;
599 	u8 node_num;
600 	u8 next_ep_id;
601 	struct ath6kl_cookie *cookie_list;
602 	u32 cookie_count;
603 	enum htc_endpoint_id ac2ep_map[WMM_NUM_AC];
604 	bool ac_stream_active[WMM_NUM_AC];
605 	u8 ac_stream_pri_map[WMM_NUM_AC];
606 	u8 hiac_stream_active_pri;
607 	u8 ep2ac_map[ENDPOINT_MAX];
608 	enum htc_endpoint_id ctrl_ep;
609 	struct ath6kl_htc_credit_info credit_state_info;
610 	u32 connect_ctrl_flags;
611 	u32 user_key_ctrl;
612 	u8 usr_bss_filter;
613 	struct ath6kl_sta sta_list[AP_MAX_NUM_STA];
614 	u8 sta_list_index;
615 	struct ath6kl_req_key ap_mode_bkey;
616 	struct sk_buff_head mcastpsq;
617 
618 	/*
619 	 * FIXME: protects access to mcastpsq but is actually useless as
620 	 * all skbe_queue_*() functions provide serialisation themselves
621 	 */
622 	spinlock_t mcastpsq_lock;
623 
624 	u8 intra_bss;
625 	struct wmi_ap_mode_stat ap_stats;
626 	u8 ap_country_code[3];
627 	struct list_head amsdu_rx_buffer_queue;
628 	u8 rx_meta_ver;
629 	enum wlan_low_pwr_state wlan_pwr_state;
630 	u8 mac_addr[ETH_ALEN];
631 #define AR_MCAST_FILTER_MAC_ADDR_SIZE  4
632 	struct {
633 		void *rx_report;
634 		size_t rx_report_len;
635 	} tm;
636 
637 	struct ath6kl_hw {
638 		u32 id;
639 		const char *name;
640 		u32 dataset_patch_addr;
641 		u32 app_load_addr;
642 		u32 app_start_override_addr;
643 		u32 board_ext_data_addr;
644 		u32 reserved_ram_size;
645 		u32 board_addr;
646 		u32 refclk_hz;
647 		u32 uarttx_pin;
648 		u32 testscript_addr;
649 
650 		struct ath6kl_hw_fw {
651 			const char *dir;
652 			const char *otp;
653 			const char *fw;
654 			const char *tcmd;
655 			const char *patch;
656 			const char *utf;
657 			const char *testscript;
658 		} fw;
659 
660 		const char *fw_board;
661 		const char *fw_default_board;
662 	} hw;
663 
664 	u16 conf_flags;
665 	u16 suspend_mode;
666 	u16 wow_suspend_mode;
667 	wait_queue_head_t event_wq;
668 	struct ath6kl_mbox_info mbox_info;
669 
670 	struct ath6kl_cookie cookie_mem[MAX_COOKIE_NUM];
671 	unsigned long flag;
672 
673 	u8 *fw_board;
674 	size_t fw_board_len;
675 
676 	u8 *fw_otp;
677 	size_t fw_otp_len;
678 
679 	u8 *fw;
680 	size_t fw_len;
681 
682 	u8 *fw_patch;
683 	size_t fw_patch_len;
684 
685 	u8 *fw_testscript;
686 	size_t fw_testscript_len;
687 
688 	unsigned int fw_api;
689 	unsigned long fw_capabilities[ATH6KL_CAPABILITY_LEN];
690 
691 	struct workqueue_struct *ath6kl_wq;
692 
693 	struct dentry *debugfs_phy;
694 
695 	bool p2p;
696 
697 	bool wiphy_registered;
698 
699 #ifdef CONFIG_ATH6KL_DEBUG
700 	struct {
701 		struct sk_buff_head fwlog_queue;
702 		struct completion fwlog_completion;
703 		bool fwlog_open;
704 
705 		u32 fwlog_mask;
706 
707 		unsigned int dbgfs_diag_reg;
708 		u32 diag_reg_addr_wr;
709 		u32 diag_reg_val_wr;
710 
711 		struct {
712 			unsigned int invalid_rate;
713 		} war_stats;
714 
715 		u8 *roam_tbl;
716 		unsigned int roam_tbl_len;
717 
718 		u8 keepalive;
719 		u8 disc_timeout;
720 	} debug;
721 #endif /* CONFIG_ATH6KL_DEBUG */
722 };
723 
ath6kl_priv(struct net_device * dev)724 static inline struct ath6kl *ath6kl_priv(struct net_device *dev)
725 {
726 	return ((struct ath6kl_vif *) netdev_priv(dev))->ar;
727 }
728 
ath6kl_get_hi_item_addr(struct ath6kl * ar,u32 item_offset)729 static inline u32 ath6kl_get_hi_item_addr(struct ath6kl *ar,
730 					  u32 item_offset)
731 {
732 	u32 addr = 0;
733 
734 	if (ar->target_type == TARGET_TYPE_AR6003)
735 		addr = ATH6KL_AR6003_HI_START_ADDR + item_offset;
736 	else if (ar->target_type == TARGET_TYPE_AR6004)
737 		addr = ATH6KL_AR6004_HI_START_ADDR + item_offset;
738 
739 	return addr;
740 }
741 
742 int ath6kl_configure_target(struct ath6kl *ar);
743 void ath6kl_detect_error(unsigned long ptr);
744 void disconnect_timer_handler(unsigned long ptr);
745 void init_netdev(struct net_device *dev);
746 void ath6kl_cookie_init(struct ath6kl *ar);
747 void ath6kl_cookie_cleanup(struct ath6kl *ar);
748 void ath6kl_rx(struct htc_target *target, struct htc_packet *packet);
749 void ath6kl_tx_complete(void *context, struct list_head *packet_queue);
750 enum htc_send_full_action ath6kl_tx_queue_full(struct htc_target *target,
751 					       struct htc_packet *packet);
752 void ath6kl_stop_txrx(struct ath6kl *ar);
753 void ath6kl_cleanup_amsdu_rxbufs(struct ath6kl *ar);
754 int ath6kl_diag_write32(struct ath6kl *ar, u32 address, __le32 value);
755 int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length);
756 int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value);
757 int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length);
758 int ath6kl_read_fwlogs(struct ath6kl *ar);
759 void ath6kl_init_profile_info(struct ath6kl_vif *vif);
760 void ath6kl_tx_data_cleanup(struct ath6kl *ar);
761 
762 struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar);
763 void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie);
764 int ath6kl_data_tx(struct sk_buff *skb, struct net_device *dev);
765 
766 struct aggr_info *aggr_init(struct ath6kl_vif *vif);
767 void aggr_conn_init(struct ath6kl_vif *vif, struct aggr_info *aggr_info,
768 		    struct aggr_info_conn *aggr_conn);
769 void ath6kl_rx_refill(struct htc_target *target,
770 		      enum htc_endpoint_id endpoint);
771 void ath6kl_refill_amsdu_rxbufs(struct ath6kl *ar, int count);
772 struct htc_packet *ath6kl_alloc_amsdu_rxbuf(struct htc_target *target,
773 					    enum htc_endpoint_id endpoint,
774 					    int len);
775 void aggr_module_destroy(struct aggr_info *aggr_info);
776 void aggr_reset_state(struct aggr_info_conn *aggr_conn);
777 
778 struct ath6kl_sta *ath6kl_find_sta(struct ath6kl_vif *vif, u8 *node_addr);
779 struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid);
780 
781 void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver);
782 int ath6kl_control_tx(void *devt, struct sk_buff *skb,
783 		      enum htc_endpoint_id eid);
784 void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel,
785 			  u8 *bssid, u16 listen_int,
786 			  u16 beacon_int, enum network_type net_type,
787 			  u8 beacon_ie_len, u8 assoc_req_len,
788 			  u8 assoc_resp_len, u8 *assoc_info);
789 void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel);
790 void ath6kl_connect_ap_mode_sta(struct ath6kl_vif *vif, u16 aid, u8 *mac_addr,
791 				u8 keymgmt, u8 ucipher, u8 auth,
792 				u8 assoc_req_len, u8 *assoc_info, u8 apsd_info);
793 void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason,
794 			     u8 *bssid, u8 assoc_resp_len,
795 			     u8 *assoc_info, u16 prot_reason_status);
796 void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast);
797 void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr);
798 void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status);
799 void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len);
800 void ath6kl_indicate_tx_activity(void *devt, u8 traffic_class, bool active);
801 enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac);
802 
803 void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid);
804 
805 void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif);
806 void ath6kl_disconnect(struct ath6kl_vif *vif);
807 void aggr_recv_delba_req_evt(struct ath6kl_vif *vif, u8 tid);
808 void aggr_recv_addba_req_evt(struct ath6kl_vif *vif, u8 tid, u16 seq_no,
809 			     u8 win_sz);
810 void ath6kl_wakeup_event(void *dev);
811 
812 void ath6kl_reset_device(struct ath6kl *ar, u32 target_type,
813 			 bool wait_fot_compltn, bool cold_reset);
814 void ath6kl_init_control_info(struct ath6kl_vif *vif);
815 struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar);
816 void ath6kl_cleanup_vif(struct ath6kl_vif *vif, bool wmi_ready);
817 int ath6kl_init_hw_start(struct ath6kl *ar);
818 int ath6kl_init_hw_stop(struct ath6kl *ar);
819 int ath6kl_init_fetch_firmwares(struct ath6kl *ar);
820 int ath6kl_init_hw_params(struct ath6kl *ar);
821 
822 void ath6kl_check_wow_status(struct ath6kl *ar);
823 
824 struct ath6kl *ath6kl_core_create(struct device *dev);
825 int ath6kl_core_init(struct ath6kl *ar);
826 void ath6kl_core_cleanup(struct ath6kl *ar);
827 void ath6kl_core_destroy(struct ath6kl *ar);
828 
829 #endif /* CORE_H */
830