2 Copyright (C) 2004 - 2009 rt2x00 SourceForge Project
3 <http://rt2x00.serialmonkey.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the
17 Free Software Foundation, Inc.,
18 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 Abstract: Data structures and definitions for the rt2x00lib module.
29 #include "rt2x00dump.h"
33 * Both the link tuner as the rfkill will be called once per second.
35 #define LINK_TUNE_INTERVAL round_jiffies_relative(HZ)
36 #define RFKILL_POLL_INTERVAL 1000
39 * rt2x00_rate: Per rate device information
43 #define DEV_RATE_CCK 0x0001
44 #define DEV_RATE_OFDM 0x0002
45 #define DEV_RATE_SHORT_PREAMBLE 0x0004
47 unsigned short bitrate; /* In 100kbit/s */
48 unsigned short ratemask;
54 extern const struct rt2x00_rate rt2x00_supported_rates[12];
56 static inline const struct rt2x00_rate *rt2x00_get_rate(const u16 hw_value)
58 return &rt2x00_supported_rates[hw_value & 0xff];
61 #define RATE_MCS(__mode, __mcs) \
62 ( (((__mode) & 0x00ff) << 8) | ((__mcs) & 0x00ff) )
64 static inline int rt2x00_get_rate_mcs(const u16 mcs_value)
66 return (mcs_value & 0x00ff);
70 * Radio control handlers.
72 int rt2x00lib_enable_radio(struct rt2x00_dev *rt2x00dev);
73 void rt2x00lib_disable_radio(struct rt2x00_dev *rt2x00dev);
74 void rt2x00lib_toggle_rx(struct rt2x00_dev *rt2x00dev, enum dev_state state);
77 * Initialization handlers.
79 int rt2x00lib_start(struct rt2x00_dev *rt2x00dev);
80 void rt2x00lib_stop(struct rt2x00_dev *rt2x00dev);
83 * Configuration handlers.
85 void rt2x00lib_config_intf(struct rt2x00_dev *rt2x00dev,
86 struct rt2x00_intf *intf,
87 enum nl80211_iftype type,
88 const u8 *mac, const u8 *bssid);
89 void rt2x00lib_config_erp(struct rt2x00_dev *rt2x00dev,
90 struct rt2x00_intf *intf,
91 struct ieee80211_bss_conf *conf);
92 void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
93 struct antenna_setup *ant);
94 void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
95 struct ieee80211_conf *conf,
96 const unsigned int changed_flags);
103 * rt2x00queue_alloc_rxskb - allocate a skb for RX purposes.
104 * @rt2x00dev: Pointer to &struct rt2x00_dev.
105 * @queue: The queue for which the skb will be applicable.
107 struct sk_buff *rt2x00queue_alloc_rxskb(struct rt2x00_dev *rt2x00dev,
108 struct queue_entry *entry);
111 * rt2x00queue_unmap_skb - Unmap a skb from DMA.
112 * @rt2x00dev: Pointer to &struct rt2x00_dev.
113 * @skb: The skb to unmap.
115 void rt2x00queue_unmap_skb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb);
118 * rt2x00queue_free_skb - free a skb
119 * @rt2x00dev: Pointer to &struct rt2x00_dev.
120 * @skb: The skb to free.
122 void rt2x00queue_free_skb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb);
125 * rt2x00queue_payload_align - Align 802.11 payload to 4-byte boundary
126 * @skb: The skb to align
127 * @l2pad: Should L2 padding be used
128 * @header_length: Length of 802.11 header
130 * This function prepares the @skb to be send to the device or mac80211.
131 * If @l2pad is set to true padding will occur between the 802.11 header
132 * and payload. Otherwise the padding will be done in front of the 802.11
134 * When @l2pad is set the function will check for the &SKBDESC_L2_PADDED
135 * flag in &skb_frame_desc. If that flag is set, the padding is removed
136 * and the flag cleared. Otherwise the padding is added and the flag is set.
138 void rt2x00queue_payload_align(struct sk_buff *skb,
139 bool l2pad, unsigned int header_length);
142 * rt2x00queue_write_tx_frame - Write TX frame to hardware
143 * @queue: Queue over which the frame should be send
144 * @skb: The skb to send
146 int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb);
149 * rt2x00queue_update_beacon - Send new beacon from mac80211 to hardware
150 * @rt2x00dev: Pointer to &struct rt2x00_dev.
151 * @vif: Interface for which the beacon should be updated.
152 * @enable_beacon: Enable beaconing
154 int rt2x00queue_update_beacon(struct rt2x00_dev *rt2x00dev,
155 struct ieee80211_vif *vif,
156 const bool enable_beacon);
159 * rt2x00queue_index_inc - Index incrementation function
160 * @queue: Queue (&struct data_queue) to perform the action on.
161 * @index: Index type (&enum queue_index) to perform the action on.
163 * This function will increase the requested index on the queue,
164 * it will grab the appropriate locks and handle queue overflow events by
165 * resetting the index to the start of the queue.
167 void rt2x00queue_index_inc(struct data_queue *queue, enum queue_index index);
170 * rt2x00queue_stop_queues - Halt all data queues
171 * @rt2x00dev: Pointer to &struct rt2x00_dev.
173 * This function will loop through all available queues to stop
174 * any pending outgoing frames.
176 void rt2x00queue_stop_queues(struct rt2x00_dev *rt2x00dev);
179 * rt2x00queue_init_queues - Initialize all data queues
180 * @rt2x00dev: Pointer to &struct rt2x00_dev.
182 * This function will loop through all available queues to clear all
183 * index numbers and set the queue entry to the correct initialization
186 void rt2x00queue_init_queues(struct rt2x00_dev *rt2x00dev);
188 int rt2x00queue_initialize(struct rt2x00_dev *rt2x00dev);
189 void rt2x00queue_uninitialize(struct rt2x00_dev *rt2x00dev);
190 int rt2x00queue_allocate(struct rt2x00_dev *rt2x00dev);
191 void rt2x00queue_free(struct rt2x00_dev *rt2x00dev);
194 * rt2x00link_update_stats - Update link statistics from RX frame
195 * @rt2x00dev: Pointer to &struct rt2x00_dev.
196 * @skb: Received frame
197 * @rxdesc: Received frame descriptor
199 * Update link statistics based on the information from the
200 * received frame descriptor.
202 void rt2x00link_update_stats(struct rt2x00_dev *rt2x00dev,
204 struct rxdone_entry_desc *rxdesc);
207 * rt2x00link_calculate_signal - Calculate signal quality
208 * @rt2x00dev: Pointer to &struct rt2x00_dev.
209 * @rssi: RX Frame RSSI
211 * Calculate the signal quality of a frame based on the rssi
212 * measured during the receiving of the frame and the global
213 * link quality statistics measured since the start of the
214 * link tuning. The result is a value between 0 and 100 which
215 * is an indication of the signal quality.
217 int rt2x00link_calculate_signal(struct rt2x00_dev *rt2x00dev, int rssi);
220 * rt2x00link_start_tuner - Start periodic link tuner work
221 * @rt2x00dev: Pointer to &struct rt2x00_dev.
223 * This start the link tuner periodic work, this work will
224 * be executed periodically until &rt2x00link_stop_tuner has
227 void rt2x00link_start_tuner(struct rt2x00_dev *rt2x00dev);
230 * rt2x00link_stop_tuner - Stop periodic link tuner work
231 * @rt2x00dev: Pointer to &struct rt2x00_dev.
233 * After this function completed the link tuner will not
234 * be running until &rt2x00link_start_tuner is called.
236 void rt2x00link_stop_tuner(struct rt2x00_dev *rt2x00dev);
239 * rt2x00link_reset_tuner - Reset periodic link tuner work
240 * @rt2x00dev: Pointer to &struct rt2x00_dev.
241 * @antenna: Should the antenna tuning also be reset
243 * The VGC limit configured in the hardware will be reset to 0
244 * which forces the driver to rediscover the correct value for
245 * the current association. This is needed when configuration
246 * options have changed which could drastically change the
247 * SNR level or link quality (i.e. changing the antenna setting).
249 * Resetting the link tuner will also cause the periodic work counter
250 * to be reset. Any driver which has a fixed limit on the number
251 * of rounds the link tuner is supposed to work will accept the
252 * tuner actions again if this limit was previously reached.
254 * If @antenna is set to true a the software antenna diversity
255 * tuning will also be reset.
257 void rt2x00link_reset_tuner(struct rt2x00_dev *rt2x00dev, bool antenna);
260 * rt2x00link_register - Initialize link tuning functionality
261 * @rt2x00dev: Pointer to &struct rt2x00_dev.
263 * Initialize work structure and all link tuning related
264 * parameters. This will not start the link tuning process itself.
266 void rt2x00link_register(struct rt2x00_dev *rt2x00dev);
271 #ifdef CONFIG_RT2X00_LIB_FIRMWARE
272 int rt2x00lib_load_firmware(struct rt2x00_dev *rt2x00dev);
273 void rt2x00lib_free_firmware(struct rt2x00_dev *rt2x00dev);
275 static inline int rt2x00lib_load_firmware(struct rt2x00_dev *rt2x00dev)
279 static inline void rt2x00lib_free_firmware(struct rt2x00_dev *rt2x00dev)
282 #endif /* CONFIG_RT2X00_LIB_FIRMWARE */
287 #ifdef CONFIG_RT2X00_LIB_DEBUGFS
288 void rt2x00debug_register(struct rt2x00_dev *rt2x00dev);
289 void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev);
290 void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
291 enum rt2x00_dump_type type, struct sk_buff *skb);
292 void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev,
293 struct rxdone_entry_desc *rxdesc);
295 static inline void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
299 static inline void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev)
303 static inline void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
304 enum rt2x00_dump_type type,
309 static inline void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev,
310 struct rxdone_entry_desc *rxdesc)
313 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
318 #ifdef CONFIG_RT2X00_LIB_CRYPTO
319 enum cipher rt2x00crypto_key_to_cipher(struct ieee80211_key_conf *key);
320 void rt2x00crypto_create_tx_descriptor(struct queue_entry *entry,
321 struct txentry_desc *txdesc);
322 unsigned int rt2x00crypto_tx_overhead(struct rt2x00_dev *rt2x00dev,
323 struct sk_buff *skb);
324 void rt2x00crypto_tx_copy_iv(struct sk_buff *skb,
325 struct txentry_desc *txdesc);
326 void rt2x00crypto_tx_remove_iv(struct sk_buff *skb,
327 struct txentry_desc *txdesc);
328 void rt2x00crypto_tx_insert_iv(struct sk_buff *skb, unsigned int header_length);
329 void rt2x00crypto_rx_insert_iv(struct sk_buff *skb, bool l2pad,
330 unsigned int header_length,
331 struct rxdone_entry_desc *rxdesc);
333 static inline enum cipher rt2x00crypto_key_to_cipher(struct ieee80211_key_conf *key)
338 static inline void rt2x00crypto_create_tx_descriptor(struct queue_entry *entry,
339 struct txentry_desc *txdesc)
343 static inline unsigned int rt2x00crypto_tx_overhead(struct rt2x00_dev *rt2x00dev,
349 static inline void rt2x00crypto_tx_copy_iv(struct sk_buff *skb,
350 struct txentry_desc *txdesc)
354 static inline void rt2x00crypto_tx_remove_iv(struct sk_buff *skb,
355 struct txentry_desc *txdesc)
359 static inline void rt2x00crypto_tx_insert_iv(struct sk_buff *skb,
360 unsigned int header_length)
364 static inline void rt2x00crypto_rx_insert_iv(struct sk_buff *skb, bool l2pad,
365 unsigned int header_length,
366 struct rxdone_entry_desc *rxdesc)
369 #endif /* CONFIG_RT2X00_LIB_CRYPTO */
374 #ifdef CONFIG_RT2X00_LIB_HT
375 void rt2x00ht_create_tx_descriptor(struct queue_entry *entry,
376 struct txentry_desc *txdesc,
377 const struct rt2x00_rate *hwrate);
379 static inline void rt2x00ht_create_tx_descriptor(struct queue_entry *entry,
380 struct txentry_desc *txdesc,
381 const struct rt2x00_rate *hwrate)
384 #endif /* CONFIG_RT2X00_LIB_HT */
389 #ifdef CONFIG_RT2X00_LIB_RFKILL
390 void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev);
391 void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev);
392 void rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev);
393 void rt2x00rfkill_free(struct rt2x00_dev *rt2x00dev);
395 static inline void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev)
399 static inline void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev)
403 static inline void rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev)
407 static inline void rt2x00rfkill_free(struct rt2x00_dev *rt2x00dev)
410 #endif /* CONFIG_RT2X00_LIB_RFKILL */
415 #ifdef CONFIG_RT2X00_LIB_LEDS
416 void rt2x00leds_led_quality(struct rt2x00_dev *rt2x00dev, int rssi);
417 void rt2x00led_led_activity(struct rt2x00_dev *rt2x00dev, bool enabled);
418 void rt2x00leds_led_assoc(struct rt2x00_dev *rt2x00dev, bool enabled);
419 void rt2x00leds_led_radio(struct rt2x00_dev *rt2x00dev, bool enabled);
420 void rt2x00leds_register(struct rt2x00_dev *rt2x00dev);
421 void rt2x00leds_unregister(struct rt2x00_dev *rt2x00dev);
422 void rt2x00leds_suspend(struct rt2x00_dev *rt2x00dev);
423 void rt2x00leds_resume(struct rt2x00_dev *rt2x00dev);
425 static inline void rt2x00leds_led_quality(struct rt2x00_dev *rt2x00dev,
430 static inline void rt2x00led_led_activity(struct rt2x00_dev *rt2x00dev,
435 static inline void rt2x00leds_led_assoc(struct rt2x00_dev *rt2x00dev,
440 static inline void rt2x00leds_led_radio(struct rt2x00_dev *rt2x00dev,
445 static inline void rt2x00leds_register(struct rt2x00_dev *rt2x00dev)
449 static inline void rt2x00leds_unregister(struct rt2x00_dev *rt2x00dev)
453 static inline void rt2x00leds_suspend(struct rt2x00_dev *rt2x00dev)
457 static inline void rt2x00leds_resume(struct rt2x00_dev *rt2x00dev)
460 #endif /* CONFIG_RT2X00_LIB_LEDS */
462 #endif /* RT2X00LIB_H */