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);
72 void rt2x00lib_toggle_rx(struct rt2x00_dev *rt2x00dev, enum dev_state state);
75 * Initialization handlers.
77 int rt2x00lib_start(struct rt2x00_dev *rt2x00dev);
78 void rt2x00lib_stop(struct rt2x00_dev *rt2x00dev);
81 * Configuration handlers.
83 void rt2x00lib_config_intf(struct rt2x00_dev *rt2x00dev,
84 struct rt2x00_intf *intf,
85 enum nl80211_iftype type,
86 const u8 *mac, const u8 *bssid);
87 void rt2x00lib_config_erp(struct rt2x00_dev *rt2x00dev,
88 struct rt2x00_intf *intf,
89 struct ieee80211_bss_conf *conf,
91 void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
92 struct antenna_setup ant);
93 void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
94 struct ieee80211_conf *conf,
95 const unsigned int changed_flags);
102 * rt2x00queue_alloc_rxskb - allocate a skb for RX purposes.
103 * @entry: The entry for which the skb will be applicable.
105 struct sk_buff *rt2x00queue_alloc_rxskb(struct queue_entry *entry);
108 * rt2x00queue_free_skb - free a skb
109 * @entry: The entry for which the skb will be applicable.
111 void rt2x00queue_free_skb(struct queue_entry *entry);
114 * rt2x00queue_align_frame - Align 802.11 frame to 4-byte boundary
115 * @skb: The skb to align
117 * Align the start of the 802.11 frame to a 4-byte boundary, this could
118 * mean the payload is not aligned properly though.
120 void rt2x00queue_align_frame(struct sk_buff *skb);
123 * rt2x00queue_align_payload - Align 802.11 payload to 4-byte boundary
124 * @skb: The skb to align
125 * @header_length: Length of 802.11 header
127 * Align the 802.11 payload to a 4-byte boundary, this could
128 * mean the header is not aligned properly though.
130 void rt2x00queue_align_payload(struct sk_buff *skb, unsigned int header_length);
133 * rt2x00queue_insert_l2pad - Align 802.11 header & payload to 4-byte boundary
134 * @skb: The skb to align
135 * @header_length: Length of 802.11 header
137 * Apply L2 padding to align both header and payload to 4-byte boundary
139 void rt2x00queue_insert_l2pad(struct sk_buff *skb, unsigned int header_length);
142 * rt2x00queue_insert_l2pad - Remove L2 padding from 802.11 frame
143 * @skb: The skb to align
144 * @header_length: Length of 802.11 header
146 * Remove L2 padding used to align both header and payload to 4-byte boundary,
147 * by removing the L2 padding the header will no longer be 4-byte aligned.
149 void rt2x00queue_remove_l2pad(struct sk_buff *skb, unsigned int header_length);
152 * rt2x00queue_write_tx_frame - Write TX frame to hardware
153 * @queue: Queue over which the frame should be send
154 * @skb: The skb to send
155 * @local: frame is not from mac80211
157 int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb,
161 * rt2x00queue_update_beacon - Send new beacon from mac80211 to hardware
162 * @rt2x00dev: Pointer to &struct rt2x00_dev.
163 * @vif: Interface for which the beacon should be updated.
164 * @enable_beacon: Enable beaconing
166 int rt2x00queue_update_beacon(struct rt2x00_dev *rt2x00dev,
167 struct ieee80211_vif *vif,
168 const bool enable_beacon);
171 * rt2x00queue_index_inc - Index incrementation function
172 * @queue: Queue (&struct data_queue) to perform the action on.
173 * @index: Index type (&enum queue_index) to perform the action on.
175 * This function will increase the requested index on the queue,
176 * it will grab the appropriate locks and handle queue overflow events by
177 * resetting the index to the start of the queue.
179 void rt2x00queue_index_inc(struct data_queue *queue, enum queue_index index);
182 * rt2x00queue_stop_queues - Halt all data queues
183 * @rt2x00dev: Pointer to &struct rt2x00_dev.
185 * This function will loop through all available queues to stop
186 * any pending outgoing frames.
188 void rt2x00queue_stop_queues(struct rt2x00_dev *rt2x00dev);
191 * rt2x00queue_init_queues - Initialize all data queues
192 * @rt2x00dev: Pointer to &struct rt2x00_dev.
194 * This function will loop through all available queues to clear all
195 * index numbers and set the queue entry to the correct initialization
198 void rt2x00queue_init_queues(struct rt2x00_dev *rt2x00dev);
200 int rt2x00queue_initialize(struct rt2x00_dev *rt2x00dev);
201 void rt2x00queue_uninitialize(struct rt2x00_dev *rt2x00dev);
202 int rt2x00queue_allocate(struct rt2x00_dev *rt2x00dev);
203 void rt2x00queue_free(struct rt2x00_dev *rt2x00dev);
206 * rt2x00link_update_stats - Update link statistics from RX frame
207 * @rt2x00dev: Pointer to &struct rt2x00_dev.
208 * @skb: Received frame
209 * @rxdesc: Received frame descriptor
211 * Update link statistics based on the information from the
212 * received frame descriptor.
214 void rt2x00link_update_stats(struct rt2x00_dev *rt2x00dev,
216 struct rxdone_entry_desc *rxdesc);
219 * rt2x00link_start_tuner - Start periodic link tuner work
220 * @rt2x00dev: Pointer to &struct rt2x00_dev.
222 * This start the link tuner periodic work, this work will
223 * be executed periodically until &rt2x00link_stop_tuner has
226 void rt2x00link_start_tuner(struct rt2x00_dev *rt2x00dev);
229 * rt2x00link_stop_tuner - Stop periodic link tuner work
230 * @rt2x00dev: Pointer to &struct rt2x00_dev.
232 * After this function completed the link tuner will not
233 * be running until &rt2x00link_start_tuner is called.
235 void rt2x00link_stop_tuner(struct rt2x00_dev *rt2x00dev);
238 * rt2x00link_reset_tuner - Reset periodic link tuner work
239 * @rt2x00dev: Pointer to &struct rt2x00_dev.
240 * @antenna: Should the antenna tuning also be reset
242 * The VGC limit configured in the hardware will be reset to 0
243 * which forces the driver to rediscover the correct value for
244 * the current association. This is needed when configuration
245 * options have changed which could drastically change the
246 * SNR level or link quality (i.e. changing the antenna setting).
248 * Resetting the link tuner will also cause the periodic work counter
249 * to be reset. Any driver which has a fixed limit on the number
250 * of rounds the link tuner is supposed to work will accept the
251 * tuner actions again if this limit was previously reached.
253 * If @antenna is set to true a the software antenna diversity
254 * tuning will also be reset.
256 void rt2x00link_reset_tuner(struct rt2x00_dev *rt2x00dev, bool antenna);
259 * rt2x00link_start_watchdog - Start periodic watchdog monitoring
260 * @rt2x00dev: Pointer to &struct rt2x00_dev.
262 * This start the watchdog periodic work, this work will
263 *be executed periodically until &rt2x00link_stop_watchdog has
266 void rt2x00link_start_watchdog(struct rt2x00_dev *rt2x00dev);
269 * rt2x00link_stop_watchdog - Stop periodic watchdog monitoring
270 * @rt2x00dev: Pointer to &struct rt2x00_dev.
272 * After this function completed the watchdog monitoring will not
273 * be running until &rt2x00link_start_watchdog is called.
275 void rt2x00link_stop_watchdog(struct rt2x00_dev *rt2x00dev);
278 * rt2x00link_register - Initialize link tuning & watchdog functionality
279 * @rt2x00dev: Pointer to &struct rt2x00_dev.
281 * Initialize work structure and all link tuning and watchdog related
282 * parameters. This will not start the periodic work itself.
284 void rt2x00link_register(struct rt2x00_dev *rt2x00dev);
289 #ifdef CONFIG_RT2X00_LIB_FIRMWARE
290 int rt2x00lib_load_firmware(struct rt2x00_dev *rt2x00dev);
291 void rt2x00lib_free_firmware(struct rt2x00_dev *rt2x00dev);
293 static inline int rt2x00lib_load_firmware(struct rt2x00_dev *rt2x00dev)
297 static inline void rt2x00lib_free_firmware(struct rt2x00_dev *rt2x00dev)
300 #endif /* CONFIG_RT2X00_LIB_FIRMWARE */
305 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
306 void rt2x00debug_register(struct rt2x00_dev *rt2x00dev);
307 void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev);
308 void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev,
309 struct rxdone_entry_desc *rxdesc);
311 static inline void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
315 static inline void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev)
319 static inline void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev,
320 struct rxdone_entry_desc *rxdesc)
323 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
328 #ifdef CONFIG_RT2X00_LIB_CRYPTO
329 enum cipher rt2x00crypto_key_to_cipher(struct ieee80211_key_conf *key);
330 void rt2x00crypto_create_tx_descriptor(struct queue_entry *entry,
331 struct txentry_desc *txdesc);
332 unsigned int rt2x00crypto_tx_overhead(struct rt2x00_dev *rt2x00dev,
333 struct sk_buff *skb);
334 void rt2x00crypto_tx_copy_iv(struct sk_buff *skb,
335 struct txentry_desc *txdesc);
336 void rt2x00crypto_tx_remove_iv(struct sk_buff *skb,
337 struct txentry_desc *txdesc);
338 void rt2x00crypto_tx_insert_iv(struct sk_buff *skb, unsigned int header_length);
339 void rt2x00crypto_rx_insert_iv(struct sk_buff *skb,
340 unsigned int header_length,
341 struct rxdone_entry_desc *rxdesc);
343 static inline enum cipher rt2x00crypto_key_to_cipher(struct ieee80211_key_conf *key)
348 static inline void rt2x00crypto_create_tx_descriptor(struct queue_entry *entry,
349 struct txentry_desc *txdesc)
353 static inline unsigned int rt2x00crypto_tx_overhead(struct rt2x00_dev *rt2x00dev,
359 static inline void rt2x00crypto_tx_copy_iv(struct sk_buff *skb,
360 struct txentry_desc *txdesc)
364 static inline void rt2x00crypto_tx_remove_iv(struct sk_buff *skb,
365 struct txentry_desc *txdesc)
369 static inline void rt2x00crypto_tx_insert_iv(struct sk_buff *skb,
370 unsigned int header_length)
374 static inline void rt2x00crypto_rx_insert_iv(struct sk_buff *skb,
375 unsigned int header_length,
376 struct rxdone_entry_desc *rxdesc)
379 #endif /* CONFIG_RT2X00_LIB_CRYPTO */
384 #ifdef CONFIG_RT2X00_LIB_HT
385 void rt2x00ht_create_tx_descriptor(struct queue_entry *entry,
386 struct txentry_desc *txdesc,
387 const struct rt2x00_rate *hwrate);
389 u16 rt2x00ht_center_channel(struct rt2x00_dev *rt2x00dev,
390 struct ieee80211_conf *conf);
392 static inline void rt2x00ht_create_tx_descriptor(struct queue_entry *entry,
393 struct txentry_desc *txdesc,
394 const struct rt2x00_rate *hwrate)
398 static inline u16 rt2x00ht_center_channel(struct rt2x00_dev *rt2x00dev,
399 struct ieee80211_conf *conf)
401 return conf->channel->hw_value;
403 #endif /* CONFIG_RT2X00_LIB_HT */
408 static inline void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev)
410 if (test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
411 wiphy_rfkill_start_polling(rt2x00dev->hw->wiphy);
414 static inline void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev)
416 if (test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
417 wiphy_rfkill_stop_polling(rt2x00dev->hw->wiphy);
423 #ifdef CONFIG_RT2X00_LIB_LEDS
424 void rt2x00leds_led_quality(struct rt2x00_dev *rt2x00dev, int rssi);
425 void rt2x00led_led_activity(struct rt2x00_dev *rt2x00dev, bool enabled);
426 void rt2x00leds_led_assoc(struct rt2x00_dev *rt2x00dev, bool enabled);
427 void rt2x00leds_led_radio(struct rt2x00_dev *rt2x00dev, bool enabled);
428 void rt2x00leds_register(struct rt2x00_dev *rt2x00dev);
429 void rt2x00leds_unregister(struct rt2x00_dev *rt2x00dev);
430 void rt2x00leds_suspend(struct rt2x00_dev *rt2x00dev);
431 void rt2x00leds_resume(struct rt2x00_dev *rt2x00dev);
433 static inline void rt2x00leds_led_quality(struct rt2x00_dev *rt2x00dev,
438 static inline void rt2x00led_led_activity(struct rt2x00_dev *rt2x00dev,
443 static inline void rt2x00leds_led_assoc(struct rt2x00_dev *rt2x00dev,
448 static inline void rt2x00leds_led_radio(struct rt2x00_dev *rt2x00dev,
453 static inline void rt2x00leds_register(struct rt2x00_dev *rt2x00dev)
457 static inline void rt2x00leds_unregister(struct rt2x00_dev *rt2x00dev)
461 static inline void rt2x00leds_suspend(struct rt2x00_dev *rt2x00dev)
465 static inline void rt2x00leds_resume(struct rt2x00_dev *rt2x00dev)
468 #endif /* CONFIG_RT2X00_LIB_LEDS */
470 #endif /* RT2X00LIB_H */