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fe8ee9ad CL |
1 | /* |
2 | * Atheros CARL9170 driver | |
3 | * | |
4 | * Driver specific definitions | |
5 | * | |
6 | * Copyright 2008, Johannes Berg <johannes@sipsolutions.net> | |
7 | * Copyright 2009, 2010, Christian Lamparter <chunkeey@googlemail.com> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU 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; see the file COPYING. If not, see | |
21 | * http://www.gnu.org/licenses/. | |
22 | * | |
23 | * This file incorporates work covered by the following copyright and | |
24 | * permission notice: | |
25 | * Copyright (c) 2007-2008 Atheros Communications, Inc. | |
26 | * | |
27 | * Permission to use, copy, modify, and/or distribute this software for any | |
28 | * purpose with or without fee is hereby granted, provided that the above | |
29 | * copyright notice and this permission notice appear in all copies. | |
30 | * | |
31 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
32 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
33 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
34 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
35 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
36 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
37 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
38 | */ | |
39 | #ifndef __CARL9170_H | |
40 | #define __CARL9170_H | |
41 | ||
42 | #include <linux/kernel.h> | |
43 | #include <linux/firmware.h> | |
44 | #include <linux/completion.h> | |
45 | #include <linux/spinlock.h> | |
00044f17 | 46 | #include <linux/hw_random.h> |
fe8ee9ad CL |
47 | #include <net/cfg80211.h> |
48 | #include <net/mac80211.h> | |
49 | #include <linux/usb.h> | |
50 | #ifdef CONFIG_CARL9170_LEDS | |
51 | #include <linux/leds.h> | |
8e7ce893 | 52 | #endif /* CONFIG_CARL9170_LEDS */ |
fe8ee9ad CL |
53 | #ifdef CONFIG_CARL9170_WPC |
54 | #include <linux/input.h> | |
55 | #endif /* CONFIG_CARL9170_WPC */ | |
56 | #include "eeprom.h" | |
57 | #include "wlan.h" | |
58 | #include "hw.h" | |
59 | #include "fwdesc.h" | |
60 | #include "fwcmd.h" | |
61 | #include "../regd.h" | |
62 | ||
63 | #ifdef CONFIG_CARL9170_DEBUGFS | |
64 | #include "debug.h" | |
65 | #endif /* CONFIG_CARL9170_DEBUGFS */ | |
66 | ||
67 | #define CARL9170FW_NAME "carl9170-1.fw" | |
68 | ||
69 | #define PAYLOAD_MAX (CARL9170_MAX_CMD_LEN / 4 - 1) | |
70 | ||
85ee5122 CL |
71 | static const u8 ar9170_qmap[__AR9170_NUM_TXQ] = { 3, 2, 1, 0 }; |
72 | ||
fe8ee9ad CL |
73 | #define CARL9170_MAX_RX_BUFFER_SIZE 8192 |
74 | ||
75 | enum carl9170_device_state { | |
76 | CARL9170_UNKNOWN_STATE, | |
77 | CARL9170_STOPPED, | |
78 | CARL9170_IDLE, | |
79 | CARL9170_STARTED, | |
80 | }; | |
81 | ||
fe8ee9ad CL |
82 | #define WME_BA_BMP_SIZE 64 |
83 | #define CARL9170_TX_USER_RATE_TRIES 3 | |
84 | ||
fe8ee9ad | 85 | #define TID_TO_WME_AC(_tid) \ |
558925f3 CL |
86 | ((((_tid) == 0) || ((_tid) == 3)) ? IEEE80211_AC_BE : \ |
87 | (((_tid) == 1) || ((_tid) == 2)) ? IEEE80211_AC_BK : \ | |
88 | (((_tid) == 4) || ((_tid) == 5)) ? IEEE80211_AC_VI : \ | |
89 | IEEE80211_AC_VO) | |
fe8ee9ad CL |
90 | |
91 | #define SEQ_DIFF(_start, _seq) \ | |
92 | (((_start) - (_seq)) & 0x0fff) | |
93 | #define SEQ_PREV(_seq) \ | |
94 | (((_seq) - 1) & 0x0fff) | |
95 | #define SEQ_NEXT(_seq) \ | |
96 | (((_seq) + 1) & 0x0fff) | |
97 | #define BAW_WITHIN(_start, _bawsz, _seqno) \ | |
98 | ((((_seqno) - (_start)) & 0xfff) < (_bawsz)) | |
99 | ||
100 | enum carl9170_tid_state { | |
101 | CARL9170_TID_STATE_INVALID, | |
102 | CARL9170_TID_STATE_KILLED, | |
103 | CARL9170_TID_STATE_SHUTDOWN, | |
104 | CARL9170_TID_STATE_SUSPEND, | |
105 | CARL9170_TID_STATE_PROGRESS, | |
106 | CARL9170_TID_STATE_IDLE, | |
107 | CARL9170_TID_STATE_XMIT, | |
108 | }; | |
109 | ||
110 | #define CARL9170_BAW_BITS (2 * WME_BA_BMP_SIZE) | |
111 | #define CARL9170_BAW_SIZE (BITS_TO_LONGS(CARL9170_BAW_BITS)) | |
112 | #define CARL9170_BAW_LEN (DIV_ROUND_UP(CARL9170_BAW_BITS, BITS_PER_BYTE)) | |
113 | ||
114 | struct carl9170_sta_tid { | |
115 | /* must be the first entry! */ | |
116 | struct list_head list; | |
117 | ||
118 | /* temporary list for RCU unlink procedure */ | |
119 | struct list_head tmp_list; | |
120 | ||
121 | /* lock for the following data structures */ | |
122 | spinlock_t lock; | |
123 | ||
124 | unsigned int counter; | |
125 | enum carl9170_tid_state state; | |
126 | u8 tid; /* TID number ( 0 - 15 ) */ | |
127 | u16 max; /* max. AMPDU size */ | |
128 | ||
129 | u16 snx; /* awaiting _next_ frame */ | |
130 | u16 hsn; /* highest _queued_ sequence */ | |
131 | u16 bsn; /* base of the tx/agg bitmap */ | |
132 | unsigned long bitmap[CARL9170_BAW_SIZE]; | |
133 | ||
134 | /* Preaggregation reorder queue */ | |
135 | struct sk_buff_head queue; | |
9ad86ed3 CL |
136 | |
137 | struct ieee80211_sta *sta; | |
138 | struct ieee80211_vif *vif; | |
fe8ee9ad CL |
139 | }; |
140 | ||
141 | #define CARL9170_QUEUE_TIMEOUT 256 | |
142 | #define CARL9170_BUMP_QUEUE 1000 | |
143 | #define CARL9170_TX_TIMEOUT 2500 | |
144 | #define CARL9170_JANITOR_DELAY 128 | |
145 | #define CARL9170_QUEUE_STUCK_TIMEOUT 5500 | |
acf17712 | 146 | #define CARL9170_STAT_WORK 30000 |
fe8ee9ad CL |
147 | |
148 | #define CARL9170_NUM_TX_AGG_MAX 30 | |
149 | ||
150 | /* | |
151 | * Tradeoff between stability/latency and speed. | |
152 | * | |
153 | * AR9170_TXQ_DEPTH is devised by dividing the amount of available | |
154 | * tx buffers with the size of a full ethernet frame + overhead. | |
155 | * | |
156 | * Naturally: The higher the limit, the faster the device CAN send. | |
157 | * However, even a slight over-commitment at the wrong time and the | |
158 | * hardware is doomed to send all already-queued frames at suboptimal | |
25985edc | 159 | * rates. This in turn leads to an enormous amount of unsuccessful |
fe8ee9ad CL |
160 | * retries => Latency goes up, whereas the throughput goes down. CRASH! |
161 | */ | |
162 | #define CARL9170_NUM_TX_LIMIT_HARD ((AR9170_TXQ_DEPTH * 3) / 2) | |
163 | #define CARL9170_NUM_TX_LIMIT_SOFT (AR9170_TXQ_DEPTH) | |
164 | ||
165 | struct carl9170_tx_queue_stats { | |
166 | unsigned int count; | |
167 | unsigned int limit; | |
168 | unsigned int len; | |
169 | }; | |
170 | ||
171 | struct carl9170_vif { | |
172 | unsigned int id; | |
70126f61 | 173 | struct ieee80211_vif __rcu *vif; |
fe8ee9ad CL |
174 | }; |
175 | ||
176 | struct carl9170_vif_info { | |
177 | struct list_head list; | |
178 | bool active; | |
179 | unsigned int id; | |
180 | struct sk_buff *beacon; | |
181 | bool enable_beacon; | |
182 | }; | |
183 | ||
184 | #define AR9170_NUM_RX_URBS 16 | |
185 | #define AR9170_NUM_RX_URBS_MUL 2 | |
186 | #define AR9170_NUM_TX_URBS 8 | |
187 | #define AR9170_NUM_RX_URBS_POOL (AR9170_NUM_RX_URBS_MUL * AR9170_NUM_RX_URBS) | |
188 | ||
189 | enum carl9170_device_features { | |
190 | CARL9170_WPS_BUTTON = BIT(0), | |
191 | CARL9170_ONE_LED = BIT(1), | |
192 | }; | |
193 | ||
194 | #ifdef CONFIG_CARL9170_LEDS | |
195 | struct ar9170; | |
196 | ||
197 | struct carl9170_led { | |
198 | struct ar9170 *ar; | |
199 | struct led_classdev l; | |
200 | char name[32]; | |
201 | unsigned int toggled; | |
202 | bool last_state; | |
203 | bool registered; | |
204 | }; | |
205 | #endif /* CONFIG_CARL9170_LEDS */ | |
206 | ||
207 | enum carl9170_restart_reasons { | |
208 | CARL9170_RR_NO_REASON = 0, | |
209 | CARL9170_RR_FATAL_FIRMWARE_ERROR, | |
210 | CARL9170_RR_TOO_MANY_FIRMWARE_ERRORS, | |
211 | CARL9170_RR_WATCHDOG, | |
212 | CARL9170_RR_STUCK_TX, | |
e4a668c5 | 213 | CARL9170_RR_UNRESPONSIVE_DEVICE, |
fe8ee9ad CL |
214 | CARL9170_RR_COMMAND_TIMEOUT, |
215 | CARL9170_RR_TOO_MANY_PHY_ERRORS, | |
216 | CARL9170_RR_LOST_RSP, | |
217 | CARL9170_RR_INVALID_RSP, | |
218 | CARL9170_RR_USER_REQUEST, | |
219 | ||
220 | __CARL9170_RR_LAST, | |
221 | }; | |
222 | ||
223 | enum carl9170_erp_modes { | |
224 | CARL9170_ERP_INVALID, | |
225 | CARL9170_ERP_AUTO, | |
226 | CARL9170_ERP_MAC80211, | |
227 | CARL9170_ERP_OFF, | |
228 | CARL9170_ERP_CTS, | |
229 | CARL9170_ERP_RTS, | |
230 | __CARL9170_ERP_NUM, | |
231 | }; | |
232 | ||
233 | struct ar9170 { | |
234 | struct ath_common common; | |
235 | struct ieee80211_hw *hw; | |
236 | struct mutex mutex; | |
237 | enum carl9170_device_state state; | |
238 | spinlock_t state_lock; | |
239 | enum carl9170_restart_reasons last_reason; | |
240 | bool registered; | |
241 | ||
242 | /* USB */ | |
243 | struct usb_device *udev; | |
244 | struct usb_interface *intf; | |
245 | struct usb_anchor rx_anch; | |
246 | struct usb_anchor rx_work; | |
247 | struct usb_anchor rx_pool; | |
248 | struct usb_anchor tx_wait; | |
249 | struct usb_anchor tx_anch; | |
250 | struct usb_anchor tx_cmd; | |
251 | struct usb_anchor tx_err; | |
252 | struct tasklet_struct usb_tasklet; | |
253 | atomic_t tx_cmd_urbs; | |
254 | atomic_t tx_anch_urbs; | |
255 | atomic_t rx_anch_urbs; | |
256 | atomic_t rx_work_urbs; | |
257 | atomic_t rx_pool_urbs; | |
258 | kernel_ulong_t features; | |
671796dd | 259 | bool usb_ep_cmd_is_bulk; |
fe8ee9ad CL |
260 | |
261 | /* firmware settings */ | |
262 | struct completion fw_load_wait; | |
263 | struct completion fw_boot_wait; | |
264 | struct { | |
265 | const struct carl9170fw_desc_head *desc; | |
266 | const struct firmware *fw; | |
267 | unsigned int offset; | |
268 | unsigned int address; | |
269 | unsigned int cmd_bufs; | |
270 | unsigned int api_version; | |
271 | unsigned int vif_num; | |
272 | unsigned int err_counter; | |
273 | unsigned int bug_counter; | |
274 | u32 beacon_addr; | |
275 | unsigned int beacon_max_len; | |
276 | bool rx_stream; | |
277 | bool tx_stream; | |
5c895691 | 278 | bool rx_filter; |
7ccc83b0 | 279 | bool hw_counters; |
fe8ee9ad CL |
280 | unsigned int mem_blocks; |
281 | unsigned int mem_block_size; | |
282 | unsigned int rx_size; | |
aa32452d | 283 | unsigned int tx_seq_table; |
c9122c0d | 284 | bool ba_filter; |
7a5c7307 | 285 | bool disable_offload_fw; |
fe8ee9ad CL |
286 | } fw; |
287 | ||
df64962f CL |
288 | /* interface configuration combinations */ |
289 | struct ieee80211_iface_limit if_comb_limits[1]; | |
290 | struct ieee80211_iface_combination if_combs[1]; | |
291 | ||
fe8ee9ad CL |
292 | /* reset / stuck frames/queue detection */ |
293 | struct work_struct restart_work; | |
e4a668c5 | 294 | struct work_struct ping_work; |
fe8ee9ad CL |
295 | unsigned int restart_counter; |
296 | unsigned long queue_stop_timeout[__AR9170_NUM_TXQ]; | |
297 | unsigned long max_queue_stop_timeout[__AR9170_NUM_TXQ]; | |
298 | bool needs_full_reset; | |
5bcbc3fc | 299 | bool force_usb_reset; |
fe8ee9ad CL |
300 | atomic_t pending_restarts; |
301 | ||
302 | /* interface mode settings */ | |
303 | struct list_head vif_list; | |
304 | unsigned long vif_bitmap; | |
305 | unsigned int vifs; | |
306 | struct carl9170_vif vif_priv[AR9170_MAX_VIRTUAL_MAC]; | |
307 | ||
308 | /* beaconing */ | |
309 | spinlock_t beacon_lock; | |
310 | unsigned int global_pretbtt; | |
311 | unsigned int global_beacon_int; | |
70126f61 | 312 | struct carl9170_vif_info __rcu *beacon_iter; |
fe8ee9ad CL |
313 | unsigned int beacon_enabled; |
314 | ||
315 | /* cryptographic engine */ | |
316 | u64 usedkeys; | |
317 | bool rx_software_decryption; | |
318 | bool disable_offload; | |
319 | ||
320 | /* filter settings */ | |
321 | u64 cur_mc_hash; | |
322 | u32 cur_filter; | |
323 | unsigned int filter_state; | |
5c895691 | 324 | unsigned int rx_filter_caps; |
fe8ee9ad CL |
325 | bool sniffer_enabled; |
326 | ||
327 | /* MAC */ | |
328 | enum carl9170_erp_modes erp_mode; | |
329 | ||
330 | /* PHY */ | |
331 | struct ieee80211_channel *channel; | |
acf17712 | 332 | unsigned int num_channels; |
9adc9e0f | 333 | int noise[4]; |
fe8ee9ad CL |
334 | unsigned int chan_fail; |
335 | unsigned int total_chan_fail; | |
336 | u8 heavy_clip; | |
73576110 | 337 | u8 ht_settings; |
acf17712 CL |
338 | struct { |
339 | u64 active; /* usec */ | |
340 | u64 cca; /* usec */ | |
341 | u64 tx_time; /* usec */ | |
342 | u64 rx_total; | |
343 | u64 rx_overrun; | |
344 | } tally; | |
345 | struct delayed_work stat_work; | |
346 | struct survey_info *survey; | |
fe8ee9ad CL |
347 | |
348 | /* power calibration data */ | |
349 | u8 power_5G_leg[4]; | |
350 | u8 power_2G_cck[4]; | |
351 | u8 power_2G_ofdm[4]; | |
352 | u8 power_5G_ht20[8]; | |
353 | u8 power_5G_ht40[8]; | |
354 | u8 power_2G_ht20[8]; | |
355 | u8 power_2G_ht40[8]; | |
356 | ||
357 | #ifdef CONFIG_CARL9170_LEDS | |
358 | /* LED */ | |
359 | struct delayed_work led_work; | |
360 | struct carl9170_led leds[AR9170_NUM_LEDS]; | |
361 | #endif /* CONFIG_CARL9170_LEDS */ | |
362 | ||
363 | /* qos queue settings */ | |
364 | spinlock_t tx_stats_lock; | |
365 | struct carl9170_tx_queue_stats tx_stats[__AR9170_NUM_TXQ]; | |
366 | struct ieee80211_tx_queue_params edcf[5]; | |
367 | struct completion tx_flush; | |
368 | ||
369 | /* CMD */ | |
370 | int cmd_seq; | |
371 | int readlen; | |
372 | u8 *readbuf; | |
373 | spinlock_t cmd_lock; | |
374 | struct completion cmd_wait; | |
375 | union { | |
376 | __le32 cmd_buf[PAYLOAD_MAX + 1]; | |
377 | struct carl9170_cmd cmd; | |
378 | struct carl9170_rsp rsp; | |
379 | }; | |
380 | ||
381 | /* statistics */ | |
382 | unsigned int tx_dropped; | |
383 | unsigned int tx_ack_failures; | |
384 | unsigned int tx_fcs_errors; | |
fe8ee9ad CL |
385 | unsigned int rx_dropped; |
386 | ||
387 | /* EEPROM */ | |
388 | struct ar9170_eeprom eeprom; | |
389 | ||
390 | /* tx queuing */ | |
391 | struct sk_buff_head tx_pending[__AR9170_NUM_TXQ]; | |
392 | struct sk_buff_head tx_status[__AR9170_NUM_TXQ]; | |
393 | struct delayed_work tx_janitor; | |
394 | unsigned long tx_janitor_last_run; | |
395 | bool tx_schedule; | |
396 | ||
397 | /* tx ampdu */ | |
398 | struct work_struct ampdu_work; | |
399 | spinlock_t tx_ampdu_list_lock; | |
70126f61 | 400 | struct carl9170_sta_tid __rcu *tx_ampdu_iter; |
fe8ee9ad CL |
401 | struct list_head tx_ampdu_list; |
402 | atomic_t tx_ampdu_upload; | |
403 | atomic_t tx_ampdu_scheduler; | |
404 | atomic_t tx_total_pending; | |
405 | atomic_t tx_total_queued; | |
406 | unsigned int tx_ampdu_list_len; | |
407 | int current_density; | |
408 | int current_factor; | |
409 | bool tx_ampdu_schedule; | |
410 | ||
411 | /* internal memory management */ | |
412 | spinlock_t mem_lock; | |
413 | unsigned long *mem_bitmap; | |
414 | atomic_t mem_free_blocks; | |
415 | atomic_t mem_allocs; | |
416 | ||
417 | /* rxstream mpdu merge */ | |
418 | struct ar9170_rx_head rx_plcp; | |
419 | bool rx_has_plcp; | |
420 | struct sk_buff *rx_failover; | |
421 | int rx_failover_missing; | |
33dd7699 | 422 | u32 ampdu_ref; |
fe8ee9ad | 423 | |
c9122c0d CL |
424 | /* FIFO for collecting outstanding BlockAckRequest */ |
425 | struct list_head bar_list[__AR9170_NUM_TXQ]; | |
426 | spinlock_t bar_list_lock[__AR9170_NUM_TXQ]; | |
427 | ||
fe8ee9ad CL |
428 | #ifdef CONFIG_CARL9170_WPC |
429 | struct { | |
430 | bool pbc_state; | |
431 | struct input_dev *pbc; | |
432 | char name[32]; | |
433 | char phys[32]; | |
434 | } wps; | |
435 | #endif /* CONFIG_CARL9170_WPC */ | |
436 | ||
437 | #ifdef CONFIG_CARL9170_DEBUGFS | |
438 | struct carl9170_debug debug; | |
439 | struct dentry *debug_dir; | |
440 | #endif /* CONFIG_CARL9170_DEBUGFS */ | |
441 | ||
442 | /* PSM */ | |
443 | struct work_struct ps_work; | |
444 | struct { | |
445 | unsigned int dtim_counter; | |
446 | unsigned long last_beacon; | |
447 | unsigned long last_action; | |
448 | unsigned long last_slept; | |
449 | unsigned int sleep_ms; | |
450 | unsigned int off_override; | |
451 | bool state; | |
452 | } ps; | |
00044f17 CL |
453 | |
454 | #ifdef CONFIG_CARL9170_HWRNG | |
455 | # define CARL9170_HWRNG_CACHE_SIZE CARL9170_MAX_CMD_PAYLOAD_LEN | |
456 | struct { | |
457 | struct hwrng rng; | |
458 | bool initialized; | |
459 | char name[30 + 1]; | |
460 | u16 cache[CARL9170_HWRNG_CACHE_SIZE / sizeof(u16)]; | |
461 | unsigned int cache_idx; | |
462 | } rng; | |
463 | #endif /* CONFIG_CARL9170_HWRNG */ | |
fe8ee9ad CL |
464 | }; |
465 | ||
466 | enum carl9170_ps_off_override_reasons { | |
467 | PS_OFF_VIF = BIT(0), | |
468 | PS_OFF_BCN = BIT(1), | |
fe8ee9ad CL |
469 | }; |
470 | ||
c9122c0d CL |
471 | struct carl9170_bar_list_entry { |
472 | struct list_head list; | |
473 | struct rcu_head head; | |
474 | struct sk_buff *skb; | |
475 | }; | |
476 | ||
fe8ee9ad CL |
477 | struct carl9170_ba_stats { |
478 | u8 ampdu_len; | |
479 | u8 ampdu_ack_len; | |
480 | bool clear; | |
24047e2c | 481 | bool req; |
fe8ee9ad CL |
482 | }; |
483 | ||
484 | struct carl9170_sta_info { | |
485 | bool ht_sta; | |
caf1eae2 CL |
486 | bool sleeping; |
487 | atomic_t pending_frames; | |
fe8ee9ad | 488 | unsigned int ampdu_max_len; |
558925f3 CL |
489 | struct carl9170_sta_tid __rcu *agg[IEEE80211_NUM_TIDS]; |
490 | struct carl9170_ba_stats stats[IEEE80211_NUM_TIDS]; | |
fe8ee9ad CL |
491 | }; |
492 | ||
493 | struct carl9170_tx_info { | |
494 | unsigned long timeout; | |
495 | struct ar9170 *ar; | |
496 | struct kref ref; | |
497 | }; | |
498 | ||
499 | #define CHK_DEV_STATE(a, s) (((struct ar9170 *)a)->state >= (s)) | |
500 | #define IS_INITIALIZED(a) (CHK_DEV_STATE(a, CARL9170_STOPPED)) | |
501 | #define IS_ACCEPTING_CMD(a) (CHK_DEV_STATE(a, CARL9170_IDLE)) | |
502 | #define IS_STARTED(a) (CHK_DEV_STATE(a, CARL9170_STARTED)) | |
503 | ||
504 | static inline void __carl9170_set_state(struct ar9170 *ar, | |
505 | enum carl9170_device_state newstate) | |
506 | { | |
507 | ar->state = newstate; | |
508 | } | |
509 | ||
510 | static inline void carl9170_set_state(struct ar9170 *ar, | |
511 | enum carl9170_device_state newstate) | |
512 | { | |
513 | unsigned long flags; | |
514 | ||
515 | spin_lock_irqsave(&ar->state_lock, flags); | |
516 | __carl9170_set_state(ar, newstate); | |
517 | spin_unlock_irqrestore(&ar->state_lock, flags); | |
518 | } | |
519 | ||
520 | static inline void carl9170_set_state_when(struct ar9170 *ar, | |
521 | enum carl9170_device_state min, enum carl9170_device_state newstate) | |
522 | { | |
523 | unsigned long flags; | |
524 | ||
525 | spin_lock_irqsave(&ar->state_lock, flags); | |
526 | if (CHK_DEV_STATE(ar, min)) | |
527 | __carl9170_set_state(ar, newstate); | |
528 | spin_unlock_irqrestore(&ar->state_lock, flags); | |
529 | } | |
530 | ||
531 | /* exported interface */ | |
532 | void *carl9170_alloc(size_t priv_size); | |
533 | int carl9170_register(struct ar9170 *ar); | |
534 | void carl9170_unregister(struct ar9170 *ar); | |
535 | void carl9170_free(struct ar9170 *ar); | |
536 | void carl9170_restart(struct ar9170 *ar, const enum carl9170_restart_reasons r); | |
537 | void carl9170_ps_check(struct ar9170 *ar); | |
538 | ||
539 | /* USB back-end */ | |
540 | int carl9170_usb_open(struct ar9170 *ar); | |
541 | void carl9170_usb_stop(struct ar9170 *ar); | |
542 | void carl9170_usb_tx(struct ar9170 *ar, struct sk_buff *skb); | |
543 | void carl9170_usb_handle_tx_err(struct ar9170 *ar); | |
544 | int carl9170_exec_cmd(struct ar9170 *ar, const enum carl9170_cmd_oids, | |
545 | u32 plen, void *payload, u32 rlen, void *resp); | |
546 | int __carl9170_exec_cmd(struct ar9170 *ar, struct carl9170_cmd *cmd, | |
547 | const bool free_buf); | |
548 | int carl9170_usb_restart(struct ar9170 *ar); | |
549 | void carl9170_usb_reset(struct ar9170 *ar); | |
550 | ||
551 | /* MAC */ | |
552 | int carl9170_init_mac(struct ar9170 *ar); | |
553 | int carl9170_set_qos(struct ar9170 *ar); | |
554 | int carl9170_update_multicast(struct ar9170 *ar, const u64 mc_hast); | |
555 | int carl9170_mod_virtual_mac(struct ar9170 *ar, const unsigned int id, | |
556 | const u8 *mac); | |
557 | int carl9170_set_operating_mode(struct ar9170 *ar); | |
558 | int carl9170_set_beacon_timers(struct ar9170 *ar); | |
559 | int carl9170_set_dyn_sifs_ack(struct ar9170 *ar); | |
560 | int carl9170_set_rts_cts_rate(struct ar9170 *ar); | |
561 | int carl9170_set_ampdu_settings(struct ar9170 *ar); | |
562 | int carl9170_set_slot_time(struct ar9170 *ar); | |
563 | int carl9170_set_mac_rates(struct ar9170 *ar); | |
564 | int carl9170_set_hwretry_limit(struct ar9170 *ar, const u32 max_retry); | |
fe8ee9ad CL |
565 | int carl9170_upload_key(struct ar9170 *ar, const u8 id, const u8 *mac, |
566 | const u8 ktype, const u8 keyidx, const u8 *keydata, const int keylen); | |
567 | int carl9170_disable_key(struct ar9170 *ar, const u8 id); | |
67e43de6 | 568 | int carl9170_set_mac_tpc(struct ar9170 *ar, struct ieee80211_channel *channel); |
fe8ee9ad CL |
569 | |
570 | /* RX */ | |
571 | void carl9170_rx(struct ar9170 *ar, void *buf, unsigned int len); | |
572 | void carl9170_handle_command_response(struct ar9170 *ar, void *buf, u32 len); | |
573 | ||
574 | /* TX */ | |
36323f81 TH |
575 | void carl9170_op_tx(struct ieee80211_hw *hw, |
576 | struct ieee80211_tx_control *control, | |
577 | struct sk_buff *skb); | |
fe8ee9ad CL |
578 | void carl9170_tx_janitor(struct work_struct *work); |
579 | void carl9170_tx_process_status(struct ar9170 *ar, | |
580 | const struct carl9170_rsp *cmd); | |
581 | void carl9170_tx_status(struct ar9170 *ar, struct sk_buff *skb, | |
582 | const bool success); | |
583 | void carl9170_tx_callback(struct ar9170 *ar, struct sk_buff *skb); | |
584 | void carl9170_tx_drop(struct ar9170 *ar, struct sk_buff *skb); | |
585 | void carl9170_tx_scheduler(struct ar9170 *ar); | |
586 | void carl9170_tx_get_skb(struct sk_buff *skb); | |
587 | int carl9170_tx_put_skb(struct sk_buff *skb); | |
943c3399 | 588 | int carl9170_update_beacon(struct ar9170 *ar, const bool submit); |
fe8ee9ad CL |
589 | |
590 | /* LEDs */ | |
591 | #ifdef CONFIG_CARL9170_LEDS | |
592 | int carl9170_led_register(struct ar9170 *ar); | |
593 | void carl9170_led_unregister(struct ar9170 *ar); | |
594 | #endif /* CONFIG_CARL9170_LEDS */ | |
595 | int carl9170_led_init(struct ar9170 *ar); | |
596 | int carl9170_led_set_state(struct ar9170 *ar, const u32 led_state); | |
597 | ||
598 | /* PHY / RF */ | |
599 | int carl9170_set_channel(struct ar9170 *ar, struct ieee80211_channel *channel, | |
56771e50 | 600 | enum nl80211_channel_type bw); |
fe8ee9ad CL |
601 | int carl9170_get_noisefloor(struct ar9170 *ar); |
602 | ||
603 | /* FW */ | |
604 | int carl9170_parse_firmware(struct ar9170 *ar); | |
fe8ee9ad CL |
605 | |
606 | extern struct ieee80211_rate __carl9170_ratetable[]; | |
607 | extern int modparam_noht; | |
608 | ||
609 | static inline struct ar9170 *carl9170_get_priv(struct carl9170_vif *carl_vif) | |
610 | { | |
611 | return container_of(carl_vif, struct ar9170, | |
612 | vif_priv[carl_vif->id]); | |
613 | } | |
614 | ||
615 | static inline struct ieee80211_hdr *carl9170_get_hdr(struct sk_buff *skb) | |
616 | { | |
617 | return (void *)((struct _carl9170_tx_superframe *) | |
618 | skb->data)->frame_data; | |
619 | } | |
620 | ||
621 | static inline u16 get_seq_h(struct ieee80211_hdr *hdr) | |
622 | { | |
623 | return le16_to_cpu(hdr->seq_ctrl) >> 4; | |
624 | } | |
625 | ||
626 | static inline u16 carl9170_get_seq(struct sk_buff *skb) | |
627 | { | |
628 | return get_seq_h(carl9170_get_hdr(skb)); | |
629 | } | |
630 | ||
631 | static inline u16 get_tid_h(struct ieee80211_hdr *hdr) | |
632 | { | |
633 | return (ieee80211_get_qos_ctl(hdr))[0] & IEEE80211_QOS_CTL_TID_MASK; | |
634 | } | |
635 | ||
636 | static inline u16 carl9170_get_tid(struct sk_buff *skb) | |
637 | { | |
638 | return get_tid_h(carl9170_get_hdr(skb)); | |
639 | } | |
640 | ||
641 | static inline struct ieee80211_vif * | |
642 | carl9170_get_vif(struct carl9170_vif_info *priv) | |
643 | { | |
644 | return container_of((void *)priv, struct ieee80211_vif, drv_priv); | |
645 | } | |
646 | ||
647 | /* Protected by ar->mutex or RCU */ | |
648 | static inline struct ieee80211_vif *carl9170_get_main_vif(struct ar9170 *ar) | |
649 | { | |
650 | struct carl9170_vif_info *cvif; | |
651 | ||
652 | list_for_each_entry_rcu(cvif, &ar->vif_list, list) { | |
653 | if (cvif->active) | |
654 | return carl9170_get_vif(cvif); | |
655 | } | |
656 | ||
657 | return NULL; | |
658 | } | |
659 | ||
660 | static inline bool is_main_vif(struct ar9170 *ar, struct ieee80211_vif *vif) | |
661 | { | |
662 | bool ret; | |
663 | ||
664 | rcu_read_lock(); | |
665 | ret = (carl9170_get_main_vif(ar) == vif); | |
666 | rcu_read_unlock(); | |
667 | return ret; | |
668 | } | |
669 | ||
670 | #endif /* __CARL9170_H */ |