2 Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
3 Copyright (C) 2004 - 2009 Gertjan van Wingerde <gwingerde@gmail.com>
4 <http://rt2x00.serialmonkey.com>
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the
18 Free Software Foundation, Inc.,
19 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 Abstract: Data structures and definitions for the rt2x00lib module.
33 #define WATCHDOG_INTERVAL round_jiffies_relative(HZ)
34 #define LINK_TUNE_INTERVAL round_jiffies_relative(HZ)
37 * rt2x00_rate: Per rate device information
41 #define DEV_RATE_CCK 0x0001
42 #define DEV_RATE_OFDM 0x0002
43 #define DEV_RATE_SHORT_PREAMBLE 0x0004
45 unsigned short bitrate; /* In 100kbit/s */
46 unsigned short ratemask;
52 extern const struct rt2x00_rate rt2x00_supported_rates[12];
54 static inline const struct rt2x00_rate *rt2x00_get_rate(const u16 hw_value)
56 return &rt2x00_supported_rates[hw_value & 0xff];
59 #define RATE_MCS(__mode, __mcs) \
60 ((((__mode) & 0x00ff) << 8) | ((__mcs) & 0x00ff))
62 static inline int rt2x00_get_rate_mcs(const u16 mcs_value)
64 return (mcs_value & 0x00ff);
68 * Radio control handlers.
70 int rt2x00lib_enable_radio(struct rt2x00_dev *rt2x00dev);
71 void rt2x00lib_disable_radio(struct rt2x00_dev *rt2x00dev);
74 * Initialization handlers.
76 int rt2x00lib_start(struct rt2x00_dev *rt2x00dev);
77 void rt2x00lib_stop(struct rt2x00_dev *rt2x00dev);
80 * Configuration handlers.
82 void rt2x00lib_config_intf(struct rt2x00_dev *rt2x00dev,
83 struct rt2x00_intf *intf,
84 enum nl80211_iftype type,
85 const u8 *mac, const u8 *bssid);
86 void rt2x00lib_config_erp(struct rt2x00_dev *rt2x00dev,
87 struct rt2x00_intf *intf,
88 struct ieee80211_bss_conf *conf,
90 void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
91 struct antenna_setup ant);
92 void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
93 struct ieee80211_conf *conf,
94 const unsigned int changed_flags);
101 * rt2x00queue_alloc_rxskb - allocate a skb for RX purposes.
102 * @entry: The entry for which the skb will be applicable.
104 struct sk_buff *rt2x00queue_alloc_rxskb(struct queue_entry *entry);
107 * rt2x00queue_free_skb - free a skb
108 * @entry: The entry for which the skb will be applicable.
110 void rt2x00queue_free_skb(struct queue_entry *entry);
113 * rt2x00queue_align_frame - Align 802.11 frame to 4-byte boundary
114 * @skb: The skb to align
116 * Align the start of the 802.11 frame to a 4-byte boundary, this could
117 * mean the payload is not aligned properly though.
119 void rt2x00queue_align_frame(struct sk_buff *skb);
122 * rt2x00queue_align_payload - Align 802.11 payload to 4-byte boundary
123 * @skb: The skb to align
124 * @header_length: Length of 802.11 header
126 * Align the 802.11 payload to a 4-byte boundary, this could
127 * mean the header is not aligned properly though.
129 void rt2x00queue_align_payload(struct sk_buff *skb, unsigned int header_length);
132 * rt2x00queue_insert_l2pad - Align 802.11 header & payload to 4-byte boundary
133 * @skb: The skb to align
134 * @header_length: Length of 802.11 header
136 * Apply L2 padding to align both header and payload to 4-byte boundary
138 void rt2x00queue_insert_l2pad(struct sk_buff *skb, unsigned int header_length);
141 * rt2x00queue_insert_l2pad - Remove L2 padding from 802.11 frame
142 * @skb: The skb to align
143 * @header_length: Length of 802.11 header
145 * Remove L2 padding used to align both header and payload to 4-byte boundary,
146 * by removing the L2 padding the header will no longer be 4-byte aligned.
148 void rt2x00queue_remove_l2pad(struct sk_buff *skb, unsigned int header_length);
151 * rt2x00queue_write_tx_frame - Write TX frame to hardware
152 * @queue: Queue over which the frame should be send
153 * @skb: The skb to send
154 * @local: frame is not from mac80211
156 int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb,
160 * rt2x00queue_update_beacon - Send new beacon from mac80211 to hardware
161 * @rt2x00dev: Pointer to &struct rt2x00_dev.
162 * @vif: Interface for which the beacon should be updated.
163 * @enable_beacon: Enable beaconing
165 int rt2x00queue_update_beacon(struct rt2x00_dev *rt2x00dev,
166 struct ieee80211_vif *vif,
167 const bool enable_beacon);
170 * rt2x00queue_index_inc - Index incrementation function
171 * @queue: Queue (&struct data_queue) to perform the action on.
172 * @index: Index type (&enum queue_index) to perform the action on.
174 * This function will increase the requested index on the queue,
175 * it will grab the appropriate locks and handle queue overflow events by
176 * resetting the index to the start of the queue.
178 void rt2x00queue_index_inc(struct data_queue *queue, enum queue_index index);
181 * rt2x00queue_stop_queues - Halt all data queues
182 * @rt2x00dev: Pointer to &struct rt2x00_dev.
184 * This function will loop through all available queues to stop
185 * any pending outgoing frames.
187 void rt2x00queue_stop_queues(struct rt2x00_dev *rt2x00dev);
190 * rt2x00queue_init_queues - Initialize all data queues
191 * @rt2x00dev: Pointer to &struct rt2x00_dev.
193 * This function will loop through all available queues to clear all
194 * index numbers and set the queue entry to the correct initialization
197 void rt2x00queue_init_queues(struct rt2x00_dev *rt2x00dev);
199 int rt2x00queue_initialize(struct rt2x00_dev *rt2x00dev);
200 void rt2x00queue_uninitialize(struct rt2x00_dev *rt2x00dev);
201 int rt2x00queue_allocate(struct rt2x00_dev *rt2x00dev);
202 void rt2x00queue_free(struct rt2x00_dev *rt2x00dev);
205 * rt2x00link_update_stats - Update link statistics from RX frame
206 * @rt2x00dev: Pointer to &struct rt2x00_dev.
207 * @skb: Received frame
208 * @rxdesc: Received frame descriptor
210 * Update link statistics based on the information from the
211 * received frame descriptor.
213 void rt2x00link_update_stats(struct rt2x00_dev *rt2x00dev,
215 struct rxdone_entry_desc *rxdesc);
218 * rt2x00link_start_tuner - Start periodic link tuner work
219 * @rt2x00dev: Pointer to &struct rt2x00_dev.
221 * This start the link tuner periodic work, this work will
222 * be executed periodically until &rt2x00link_stop_tuner has
225 void rt2x00link_start_tuner(struct rt2x00_dev *rt2x00dev);
228 * rt2x00link_stop_tuner - Stop periodic link tuner work
229 * @rt2x00dev: Pointer to &struct rt2x00_dev.
231 * After this function completed the link tuner will not
232 * be running until &rt2x00link_start_tuner is called.
234 void rt2x00link_stop_tuner(struct rt2x00_dev *rt2x00dev);
237 * rt2x00link_reset_tuner - Reset periodic link tuner work
238 * @rt2x00dev: Pointer to &struct rt2x00_dev.
239 * @antenna: Should the antenna tuning also be reset
241 * The VGC limit configured in the hardware will be reset to 0
242 * which forces the driver to rediscover the correct value for
243 * the current association. This is needed when configuration
244 * options have changed which could drastically change the
245 * SNR level or link quality (i.e. changing the antenna setting).
247 * Resetting the link tuner will also cause the periodic work counter
248 * to be reset. Any driver which has a fixed limit on the number
249 * of rounds the link tuner is supposed to work will accept the
250 * tuner actions again if this limit was previously reached.
252 * If @antenna is set to true a the software antenna diversity
253 * tuning will also be reset.
255 void rt2x00link_reset_tuner(struct rt2x00_dev *rt2x00dev, bool antenna);
258 * rt2x00link_start_watchdog - Start periodic watchdog monitoring
259 * @rt2x00dev: Pointer to &struct rt2x00_dev.
261 * This start the watchdog periodic work, this work will
262 *be executed periodically until &rt2x00link_stop_watchdog has
265 void rt2x00link_start_watchdog(struct rt2x00_dev *rt2x00dev);
268 * rt2x00link_stop_watchdog - Stop periodic watchdog monitoring
269 * @rt2x00dev: Pointer to &struct rt2x00_dev.
271 * After this function completed the watchdog monitoring will not
272 * be running until &rt2x00link_start_watchdog is called.
274 void rt2x00link_stop_watchdog(struct rt2x00_dev *rt2x00dev);
277 * rt2x00link_register - Initialize link tuning & watchdog functionality
278 * @rt2x00dev: Pointer to &struct rt2x00_dev.
280 * Initialize work structure and all link tuning and watchdog related
281 * parameters. This will not start the periodic work itself.
283 void rt2x00link_register(struct rt2x00_dev *rt2x00dev);
288 #ifdef CONFIG_RT2X00_LIB_FIRMWARE
289 int rt2x00lib_load_firmware(struct rt2x00_dev *rt2x00dev);
290 void rt2x00lib_free_firmware(struct rt2x00_dev *rt2x00dev);
292 static inline int rt2x00lib_load_firmware(struct rt2x00_dev *rt2x00dev)
296 static inline void rt2x00lib_free_firmware(struct rt2x00_dev *rt2x00dev)
299 #endif /* CONFIG_RT2X00_LIB_FIRMWARE */
304 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
305 void rt2x00debug_register(struct rt2x00_dev *rt2x00dev);
306 void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev);
307 void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev,
308 struct rxdone_entry_desc *rxdesc);
310 static inline void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
314 static inline void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev)
318 static inline void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev,
319 struct rxdone_entry_desc *rxdesc)
322 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
327 #ifdef CONFIG_RT2X00_LIB_CRYPTO
328 enum cipher rt2x00crypto_key_to_cipher(struct ieee80211_key_conf *key);
329 void rt2x00crypto_create_tx_descriptor(struct queue_entry *entry,
330 struct txentry_desc *txdesc);
331 unsigned int rt2x00crypto_tx_overhead(struct rt2x00_dev *rt2x00dev,
332 struct sk_buff *skb);
333 void rt2x00crypto_tx_copy_iv(struct sk_buff *skb,
334 struct txentry_desc *txdesc);
335 void rt2x00crypto_tx_remove_iv(struct sk_buff *skb,
336 struct txentry_desc *txdesc);
337 void rt2x00crypto_tx_insert_iv(struct sk_buff *skb, unsigned int header_length);
338 void rt2x00crypto_rx_insert_iv(struct sk_buff *skb,
339 unsigned int header_length,
340 struct rxdone_entry_desc *rxdesc);
342 static inline enum cipher rt2x00crypto_key_to_cipher(struct ieee80211_key_conf *key)
347 static inline void rt2x00crypto_create_tx_descriptor(struct queue_entry *entry,
348 struct txentry_desc *txdesc)
352 static inline unsigned int rt2x00crypto_tx_overhead(struct rt2x00_dev *rt2x00dev,
358 static inline void rt2x00crypto_tx_copy_iv(struct sk_buff *skb,
359 struct txentry_desc *txdesc)
363 static inline void rt2x00crypto_tx_remove_iv(struct sk_buff *skb,
364 struct txentry_desc *txdesc)
368 static inline void rt2x00crypto_tx_insert_iv(struct sk_buff *skb,
369 unsigned int header_length)
373 static inline void rt2x00crypto_rx_insert_iv(struct sk_buff *skb,
374 unsigned int header_length,
375 struct rxdone_entry_desc *rxdesc)
378 #endif /* CONFIG_RT2X00_LIB_CRYPTO */
383 #ifdef CONFIG_RT2X00_LIB_HT
384 void rt2x00ht_create_tx_descriptor(struct queue_entry *entry,
385 struct txentry_desc *txdesc,
386 const struct rt2x00_rate *hwrate);
388 u16 rt2x00ht_center_channel(struct rt2x00_dev *rt2x00dev,
389 struct ieee80211_conf *conf);
391 static inline void rt2x00ht_create_tx_descriptor(struct queue_entry *entry,
392 struct txentry_desc *txdesc,
393 const struct rt2x00_rate *hwrate)
397 static inline u16 rt2x00ht_center_channel(struct rt2x00_dev *rt2x00dev,
398 struct ieee80211_conf *conf)
400 return conf->channel->hw_value;
402 #endif /* CONFIG_RT2X00_LIB_HT */
407 static inline void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev)
409 if (test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
410 wiphy_rfkill_start_polling(rt2x00dev->hw->wiphy);
413 static inline void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev)
415 if (test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
416 wiphy_rfkill_stop_polling(rt2x00dev->hw->wiphy);
422 #ifdef CONFIG_RT2X00_LIB_LEDS
423 void rt2x00leds_led_quality(struct rt2x00_dev *rt2x00dev, int rssi);
424 void rt2x00led_led_activity(struct rt2x00_dev *rt2x00dev, bool enabled);
425 void rt2x00leds_led_assoc(struct rt2x00_dev *rt2x00dev, bool enabled);
426 void rt2x00leds_led_radio(struct rt2x00_dev *rt2x00dev, bool enabled);
427 void rt2x00leds_register(struct rt2x00_dev *rt2x00dev);
428 void rt2x00leds_unregister(struct rt2x00_dev *rt2x00dev);
429 void rt2x00leds_suspend(struct rt2x00_dev *rt2x00dev);
430 void rt2x00leds_resume(struct rt2x00_dev *rt2x00dev);
432 static inline void rt2x00leds_led_quality(struct rt2x00_dev *rt2x00dev,
437 static inline void rt2x00led_led_activity(struct rt2x00_dev *rt2x00dev,
442 static inline void rt2x00leds_led_assoc(struct rt2x00_dev *rt2x00dev,
447 static inline void rt2x00leds_led_radio(struct rt2x00_dev *rt2x00dev,
452 static inline void rt2x00leds_register(struct rt2x00_dev *rt2x00dev)
456 static inline void rt2x00leds_unregister(struct rt2x00_dev *rt2x00dev)
460 static inline void rt2x00leds_suspend(struct rt2x00_dev *rt2x00dev)
464 static inline void rt2x00leds_resume(struct rt2x00_dev *rt2x00dev)
467 #endif /* CONFIG_RT2X00_LIB_LEDS */
469 #endif /* RT2X00LIB_H */