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434 lines
13 KiB
434 lines
13 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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Copyright (C) 2004 - 2009 Ivo van Doorn <[email protected]> |
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Copyright (C) 2004 - 2009 Gertjan van Wingerde <[email protected]> |
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<http://rt2x00.serialmonkey.com> |
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*/ |
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/* |
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Module: rt2x00lib |
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Abstract: Data structures and definitions for the rt2x00lib module. |
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*/ |
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#ifndef RT2X00LIB_H |
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#define RT2X00LIB_H |
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/* |
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* Interval defines |
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*/ |
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#define WATCHDOG_INTERVAL round_jiffies_relative(HZ) |
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#define LINK_TUNE_SECONDS 1 |
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#define LINK_TUNE_INTERVAL round_jiffies_relative(LINK_TUNE_SECONDS * HZ) |
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#define AGC_SECONDS 4 |
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#define VCO_SECONDS 10 |
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/* |
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* rt2x00_rate: Per rate device information |
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*/ |
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struct rt2x00_rate { |
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unsigned short flags; |
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#define DEV_RATE_CCK 0x0001 |
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#define DEV_RATE_OFDM 0x0002 |
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#define DEV_RATE_SHORT_PREAMBLE 0x0004 |
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unsigned short bitrate; /* In 100kbit/s */ |
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unsigned short ratemask; |
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unsigned short plcp; |
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unsigned short mcs; |
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}; |
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extern const struct rt2x00_rate rt2x00_supported_rates[12]; |
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static inline const struct rt2x00_rate *rt2x00_get_rate(const u16 hw_value) |
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{ |
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return &rt2x00_supported_rates[hw_value & 0xff]; |
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} |
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#define RATE_MCS(__mode, __mcs) \ |
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((((__mode) & 0x00ff) << 8) | ((__mcs) & 0x00ff)) |
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static inline int rt2x00_get_rate_mcs(const u16 mcs_value) |
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{ |
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return (mcs_value & 0x00ff); |
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} |
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/* |
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* Radio control handlers. |
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*/ |
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int rt2x00lib_enable_radio(struct rt2x00_dev *rt2x00dev); |
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void rt2x00lib_disable_radio(struct rt2x00_dev *rt2x00dev); |
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/* |
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* Initialization handlers. |
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*/ |
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int rt2x00lib_start(struct rt2x00_dev *rt2x00dev); |
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void rt2x00lib_stop(struct rt2x00_dev *rt2x00dev); |
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/* |
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* Configuration handlers. |
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*/ |
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void rt2x00lib_config_intf(struct rt2x00_dev *rt2x00dev, |
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struct rt2x00_intf *intf, |
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enum nl80211_iftype type, |
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const u8 *mac, const u8 *bssid); |
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void rt2x00lib_config_erp(struct rt2x00_dev *rt2x00dev, |
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struct rt2x00_intf *intf, |
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struct ieee80211_bss_conf *conf, |
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u32 changed); |
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void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev, |
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struct antenna_setup ant); |
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void rt2x00lib_config(struct rt2x00_dev *rt2x00dev, |
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struct ieee80211_conf *conf, |
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const unsigned int changed_flags); |
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/** |
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* DOC: Queue handlers |
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*/ |
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/** |
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* rt2x00queue_alloc_rxskb - allocate a skb for RX purposes. |
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* @entry: The entry for which the skb will be applicable. |
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*/ |
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struct sk_buff *rt2x00queue_alloc_rxskb(struct queue_entry *entry, gfp_t gfp); |
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/** |
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* rt2x00queue_free_skb - free a skb |
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* @entry: The entry for which the skb will be applicable. |
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*/ |
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void rt2x00queue_free_skb(struct queue_entry *entry); |
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/** |
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* rt2x00queue_align_frame - Align 802.11 frame to 4-byte boundary |
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* @skb: The skb to align |
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* |
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* Align the start of the 802.11 frame to a 4-byte boundary, this could |
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* mean the payload is not aligned properly though. |
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*/ |
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void rt2x00queue_align_frame(struct sk_buff *skb); |
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/** |
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* rt2x00queue_insert_l2pad - Align 802.11 header & payload to 4-byte boundary |
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* @skb: The skb to align |
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* @header_length: Length of 802.11 header |
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* |
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* Apply L2 padding to align both header and payload to 4-byte boundary |
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*/ |
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void rt2x00queue_insert_l2pad(struct sk_buff *skb, unsigned int header_length); |
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/** |
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* rt2x00queue_insert_l2pad - Remove L2 padding from 802.11 frame |
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* @skb: The skb to align |
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* @header_length: Length of 802.11 header |
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* |
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* Remove L2 padding used to align both header and payload to 4-byte boundary, |
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* by removing the L2 padding the header will no longer be 4-byte aligned. |
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*/ |
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void rt2x00queue_remove_l2pad(struct sk_buff *skb, unsigned int header_length); |
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/** |
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* rt2x00queue_write_tx_frame - Write TX frame to hardware |
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* @queue: Queue over which the frame should be send |
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* @skb: The skb to send |
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* @local: frame is not from mac80211 |
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*/ |
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int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb, |
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struct ieee80211_sta *sta, bool local); |
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/** |
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* rt2x00queue_update_beacon - Send new beacon from mac80211 |
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* to hardware. Handles locking by itself (mutex). |
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* @rt2x00dev: Pointer to &struct rt2x00_dev. |
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* @vif: Interface for which the beacon should be updated. |
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*/ |
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int rt2x00queue_update_beacon(struct rt2x00_dev *rt2x00dev, |
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struct ieee80211_vif *vif); |
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/** |
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* rt2x00queue_update_beacon_locked - Send new beacon from mac80211 |
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* to hardware. Caller needs to ensure locking. |
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* @rt2x00dev: Pointer to &struct rt2x00_dev. |
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* @vif: Interface for which the beacon should be updated. |
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*/ |
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int rt2x00queue_update_beacon_locked(struct rt2x00_dev *rt2x00dev, |
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struct ieee80211_vif *vif); |
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/** |
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* rt2x00queue_clear_beacon - Clear beacon in hardware |
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* @rt2x00dev: Pointer to &struct rt2x00_dev. |
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* @vif: Interface for which the beacon should be updated. |
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*/ |
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int rt2x00queue_clear_beacon(struct rt2x00_dev *rt2x00dev, |
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struct ieee80211_vif *vif); |
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/** |
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* rt2x00queue_index_inc - Index incrementation function |
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* @entry: Queue entry (&struct queue_entry) to perform the action on. |
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* @index: Index type (&enum queue_index) to perform the action on. |
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* |
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* This function will increase the requested index on the entry's queue, |
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* it will grab the appropriate locks and handle queue overflow events by |
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* resetting the index to the start of the queue. |
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*/ |
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void rt2x00queue_index_inc(struct queue_entry *entry, enum queue_index index); |
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/** |
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* rt2x00queue_init_queues - Initialize all data queues |
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* @rt2x00dev: Pointer to &struct rt2x00_dev. |
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* |
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* This function will loop through all available queues to clear all |
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* index numbers and set the queue entry to the correct initialization |
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* state. |
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*/ |
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void rt2x00queue_init_queues(struct rt2x00_dev *rt2x00dev); |
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int rt2x00queue_initialize(struct rt2x00_dev *rt2x00dev); |
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void rt2x00queue_uninitialize(struct rt2x00_dev *rt2x00dev); |
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int rt2x00queue_allocate(struct rt2x00_dev *rt2x00dev); |
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void rt2x00queue_free(struct rt2x00_dev *rt2x00dev); |
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/** |
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* rt2x00link_update_stats - Update link statistics from RX frame |
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* @rt2x00dev: Pointer to &struct rt2x00_dev. |
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* @skb: Received frame |
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* @rxdesc: Received frame descriptor |
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* |
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* Update link statistics based on the information from the |
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* received frame descriptor. |
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*/ |
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void rt2x00link_update_stats(struct rt2x00_dev *rt2x00dev, |
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struct sk_buff *skb, |
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struct rxdone_entry_desc *rxdesc); |
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/** |
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* rt2x00link_start_tuner - Start periodic link tuner work |
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* @rt2x00dev: Pointer to &struct rt2x00_dev. |
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* |
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* This start the link tuner periodic work, this work will |
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* be executed periodically until &rt2x00link_stop_tuner has |
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* been called. |
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*/ |
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void rt2x00link_start_tuner(struct rt2x00_dev *rt2x00dev); |
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/** |
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* rt2x00link_stop_tuner - Stop periodic link tuner work |
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* @rt2x00dev: Pointer to &struct rt2x00_dev. |
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* |
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* After this function completed the link tuner will not |
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* be running until &rt2x00link_start_tuner is called. |
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*/ |
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void rt2x00link_stop_tuner(struct rt2x00_dev *rt2x00dev); |
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/** |
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* rt2x00link_reset_tuner - Reset periodic link tuner work |
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* @rt2x00dev: Pointer to &struct rt2x00_dev. |
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* @antenna: Should the antenna tuning also be reset |
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* |
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* The VGC limit configured in the hardware will be reset to 0 |
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* which forces the driver to rediscover the correct value for |
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* the current association. This is needed when configuration |
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* options have changed which could drastically change the |
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* SNR level or link quality (i.e. changing the antenna setting). |
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* |
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* Resetting the link tuner will also cause the periodic work counter |
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* to be reset. Any driver which has a fixed limit on the number |
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* of rounds the link tuner is supposed to work will accept the |
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* tuner actions again if this limit was previously reached. |
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* |
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* If @antenna is set to true a the software antenna diversity |
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* tuning will also be reset. |
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*/ |
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void rt2x00link_reset_tuner(struct rt2x00_dev *rt2x00dev, bool antenna); |
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/** |
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* rt2x00link_start_watchdog - Start periodic watchdog monitoring |
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* @rt2x00dev: Pointer to &struct rt2x00_dev. |
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* |
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* This start the watchdog periodic work, this work will |
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*be executed periodically until &rt2x00link_stop_watchdog has |
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* been called. |
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*/ |
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void rt2x00link_start_watchdog(struct rt2x00_dev *rt2x00dev); |
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/** |
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* rt2x00link_stop_watchdog - Stop periodic watchdog monitoring |
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* @rt2x00dev: Pointer to &struct rt2x00_dev. |
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* |
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* After this function completed the watchdog monitoring will not |
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* be running until &rt2x00link_start_watchdog is called. |
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*/ |
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void rt2x00link_stop_watchdog(struct rt2x00_dev *rt2x00dev); |
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/** |
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* rt2x00link_register - Initialize link tuning & watchdog functionality |
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* @rt2x00dev: Pointer to &struct rt2x00_dev. |
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* |
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* Initialize work structure and all link tuning and watchdog related |
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* parameters. This will not start the periodic work itself. |
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*/ |
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void rt2x00link_register(struct rt2x00_dev *rt2x00dev); |
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/* |
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* Firmware handlers. |
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*/ |
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#ifdef CONFIG_RT2X00_LIB_FIRMWARE |
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int rt2x00lib_load_firmware(struct rt2x00_dev *rt2x00dev); |
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void rt2x00lib_free_firmware(struct rt2x00_dev *rt2x00dev); |
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#else |
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static inline int rt2x00lib_load_firmware(struct rt2x00_dev *rt2x00dev) |
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{ |
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return 0; |
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} |
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static inline void rt2x00lib_free_firmware(struct rt2x00_dev *rt2x00dev) |
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{ |
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} |
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#endif /* CONFIG_RT2X00_LIB_FIRMWARE */ |
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/* |
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* Debugfs handlers. |
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*/ |
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#ifdef CONFIG_RT2X00_LIB_DEBUGFS |
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void rt2x00debug_register(struct rt2x00_dev *rt2x00dev); |
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void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev); |
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void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev, |
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struct rxdone_entry_desc *rxdesc); |
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#else |
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static inline void rt2x00debug_register(struct rt2x00_dev *rt2x00dev) |
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{ |
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} |
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static inline void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev) |
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{ |
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} |
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static inline void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev, |
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struct rxdone_entry_desc *rxdesc) |
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{ |
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} |
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#endif /* CONFIG_RT2X00_LIB_DEBUGFS */ |
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/* |
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* Crypto handlers. |
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*/ |
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#ifdef CONFIG_RT2X00_LIB_CRYPTO |
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enum cipher rt2x00crypto_key_to_cipher(struct ieee80211_key_conf *key); |
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void rt2x00crypto_create_tx_descriptor(struct rt2x00_dev *rt2x00dev, |
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struct sk_buff *skb, |
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struct txentry_desc *txdesc); |
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unsigned int rt2x00crypto_tx_overhead(struct rt2x00_dev *rt2x00dev, |
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struct sk_buff *skb); |
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void rt2x00crypto_tx_copy_iv(struct sk_buff *skb, |
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struct txentry_desc *txdesc); |
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void rt2x00crypto_tx_remove_iv(struct sk_buff *skb, |
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struct txentry_desc *txdesc); |
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void rt2x00crypto_tx_insert_iv(struct sk_buff *skb, unsigned int header_length); |
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void rt2x00crypto_rx_insert_iv(struct sk_buff *skb, |
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unsigned int header_length, |
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struct rxdone_entry_desc *rxdesc); |
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#else |
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static inline enum cipher rt2x00crypto_key_to_cipher(struct ieee80211_key_conf *key) |
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{ |
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return CIPHER_NONE; |
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} |
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static inline void rt2x00crypto_create_tx_descriptor(struct rt2x00_dev *rt2x00dev, |
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struct sk_buff *skb, |
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struct txentry_desc *txdesc) |
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{ |
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} |
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static inline unsigned int rt2x00crypto_tx_overhead(struct rt2x00_dev *rt2x00dev, |
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struct sk_buff *skb) |
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{ |
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return 0; |
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} |
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static inline void rt2x00crypto_tx_copy_iv(struct sk_buff *skb, |
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struct txentry_desc *txdesc) |
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{ |
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} |
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static inline void rt2x00crypto_tx_remove_iv(struct sk_buff *skb, |
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struct txentry_desc *txdesc) |
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{ |
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} |
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static inline void rt2x00crypto_tx_insert_iv(struct sk_buff *skb, |
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unsigned int header_length) |
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{ |
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} |
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static inline void rt2x00crypto_rx_insert_iv(struct sk_buff *skb, |
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unsigned int header_length, |
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struct rxdone_entry_desc *rxdesc) |
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{ |
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} |
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#endif /* CONFIG_RT2X00_LIB_CRYPTO */ |
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/* |
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* RFkill handlers. |
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*/ |
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static inline void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev) |
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{ |
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if (test_bit(CAPABILITY_HW_BUTTON, &rt2x00dev->cap_flags)) |
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wiphy_rfkill_start_polling(rt2x00dev->hw->wiphy); |
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} |
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static inline void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev) |
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{ |
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if (test_bit(CAPABILITY_HW_BUTTON, &rt2x00dev->cap_flags)) |
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wiphy_rfkill_stop_polling(rt2x00dev->hw->wiphy); |
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} |
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/* |
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* LED handlers |
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*/ |
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#ifdef CONFIG_RT2X00_LIB_LEDS |
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void rt2x00leds_led_quality(struct rt2x00_dev *rt2x00dev, int rssi); |
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void rt2x00led_led_activity(struct rt2x00_dev *rt2x00dev, bool enabled); |
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void rt2x00leds_led_assoc(struct rt2x00_dev *rt2x00dev, bool enabled); |
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void rt2x00leds_led_radio(struct rt2x00_dev *rt2x00dev, bool enabled); |
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void rt2x00leds_register(struct rt2x00_dev *rt2x00dev); |
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void rt2x00leds_unregister(struct rt2x00_dev *rt2x00dev); |
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void rt2x00leds_suspend(struct rt2x00_dev *rt2x00dev); |
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void rt2x00leds_resume(struct rt2x00_dev *rt2x00dev); |
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#else |
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static inline void rt2x00leds_led_quality(struct rt2x00_dev *rt2x00dev, |
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int rssi) |
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{ |
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} |
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static inline void rt2x00led_led_activity(struct rt2x00_dev *rt2x00dev, |
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bool enabled) |
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{ |
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} |
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static inline void rt2x00leds_led_assoc(struct rt2x00_dev *rt2x00dev, |
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bool enabled) |
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{ |
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} |
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static inline void rt2x00leds_led_radio(struct rt2x00_dev *rt2x00dev, |
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bool enabled) |
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{ |
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} |
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static inline void rt2x00leds_register(struct rt2x00_dev *rt2x00dev) |
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{ |
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} |
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static inline void rt2x00leds_unregister(struct rt2x00_dev *rt2x00dev) |
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{ |
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} |
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static inline void rt2x00leds_suspend(struct rt2x00_dev *rt2x00dev) |
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{ |
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} |
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static inline void rt2x00leds_resume(struct rt2x00_dev *rt2x00dev) |
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{ |
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} |
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#endif /* CONFIG_RT2X00_LIB_LEDS */ |
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#endif /* RT2X00LIB_H */
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