Quelle rt2x00lib.h
Sprache: C
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
Copyright ( C ) 2004 - 2009 Ivo van Doorn < IvDoorn @ gmail . com >
Copyright ( C ) 2004 - 2009 Gertjan van Wingerde < gwingerde @ gmail . com >
< http : //rt2x00.serialmonkey.com>
*/
/*
Module : rt2x00lib
Abstract : Data structures and definitions for the rt2x00lib module .
*/
#ifndef RT2X00LIB_H
#define RT2X00LIB_H
/*
* Interval defines
*/
#define WATCHDOG_INTERVAL round_jiffies_relative(HZ)
#define LINK_TUNE_SECONDS 1
#define LINK_TUNE_INTERVAL round_jiffies_relative(LINK_TUNE_SECONDS * HZ)
#define AGC_SECONDS 4
#define VCO_SECONDS 10
/*
* rt2x00_rate : Per rate device information
*/
struct rt2x00_rate {
unsigned short flags;
#define DEV_RATE_CCK 0 x0001
#define DEV_RATE_OFDM 0 x0002
#define DEV_RATE_SHORT_PREAMBLE 0 x0004
unsigned short bitrate; /* In 100kbit/s */
unsigned short ratemask;
unsigned short plcp;
unsigned short mcs;
};
extern const struct rt2x00_rate rt2x00_supported_rates[12 ];
static inline const struct rt2x00_rate *rt2x00_get_rate(const u16 hw_value)
{
return &rt2x00_supported_rates[hw_value & 0 xff];
}
#define RATE_MCS(__mode, __mcs) \
((((__mode) & 0 x00ff) << 8 ) | ((__mcs) & 0 x00ff))
static inline int rt2x00_get_rate_mcs(const u16 mcs_value)
{
return (mcs_value & 0 x00ff);
}
/*
* Radio control handlers .
*/
int rt2x00lib_enable_radio(struct rt2x00_dev *rt2x00dev);
void rt2x00lib_disable_radio(struct rt2x00_dev *rt2x00dev);
/*
* Initialization handlers .
*/
int rt2x00lib_start(struct rt2x00_dev *rt2x00dev);
void rt2x00lib_stop(struct rt2x00_dev *rt2x00dev);
/*
* Configuration handlers .
*/
void rt2x00lib_config_intf(struct rt2x00_dev *rt2x00dev,
struct rt2x00_intf *intf,
enum nl80211_iftype type,
const u8 *mac, const u8 *bssid);
void rt2x00lib_config_erp(struct rt2x00_dev *rt2x00dev,
struct rt2x00_intf *intf,
struct ieee80211_bss_conf *conf,
u32 changed);
void rt2x00lib_config_antenna(struct rt2x00_dev *rt2x00dev,
struct antenna_setup ant);
void rt2x00lib_config(struct rt2x00_dev *rt2x00dev,
struct ieee80211_conf *conf,
const unsigned int changed_flags);
/**
* DOC : Queue handlers
*/
/**
* rt2x00queue_alloc_rxskb - allocate a skb for RX purposes .
* @ entry : The entry for which the skb will be applicable .
*/
struct sk_buff *rt2x00queue_alloc_rxskb(struct queue_entry *entry, gfp_t gfp);
/**
* rt2x00queue_free_skb - free a skb
* @ entry : The entry for which the skb will be applicable .
*/
void rt2x00queue_free_skb(struct queue_entry *entry);
/**
* rt2x00queue_align_frame - Align 802 . 11 frame to 4 - byte boundary
* @ skb : The skb to align
*
* Align the start of the 802 . 11 frame to a 4 - byte boundary , this could
* mean the payload is not aligned properly though .
*/
void rt2x00queue_align_frame(struct sk_buff *skb);
/**
* rt2x00queue_insert_l2pad - Align 802 . 11 header & payload to 4 - byte boundary
* @ skb : The skb to align
* @ header_length : Length of 802 . 11 header
*
* Apply L2 padding to align both header and payload to 4 - byte boundary
*/
void rt2x00queue_insert_l2pad(struct sk_buff *skb, unsigned int header_length);
/**
* rt2x00queue_insert_l2pad - Remove L2 padding from 802 . 11 frame
* @ skb : The skb to align
* @ header_length : Length of 802 . 11 header
*
* Remove L2 padding used to align both header and payload to 4 - byte boundary ,
* by removing the L2 padding the header will no longer be 4 - byte aligned .
*/
void rt2x00queue_remove_l2pad(struct sk_buff *skb, unsigned int header_length);
/**
* rt2x00queue_write_tx_frame - Write TX frame to hardware
* @ queue : Queue over which the frame should be send
* @ skb : The skb to send
* @ local : frame is not from mac80211
*/
int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb,
struct ieee80211_sta *sta, bool local);
/**
* rt2x00queue_update_beacon - Send new beacon from mac80211
* to hardware . Handles locking by itself ( mutex ) .
* @ rt2x00dev : Pointer to & struct rt2x00_dev .
* @ vif : Interface for which the beacon should be updated .
*/
int rt2x00queue_update_beacon(struct rt2x00_dev *rt2x00dev,
struct ieee80211_vif *vif);
/**
* rt2x00queue_update_beacon_locked - Send new beacon from mac80211
* to hardware . Caller needs to ensure locking .
* @ rt2x00dev : Pointer to & struct rt2x00_dev .
* @ vif : Interface for which the beacon should be updated .
*/
int rt2x00queue_update_beacon_locked(struct rt2x00_dev *rt2x00dev,
struct ieee80211_vif *vif);
/**
* rt2x00queue_clear_beacon - Clear beacon in hardware
* @ rt2x00dev : Pointer to & struct rt2x00_dev .
* @ vif : Interface for which the beacon should be updated .
*/
int rt2x00queue_clear_beacon(struct rt2x00_dev *rt2x00dev,
struct ieee80211_vif *vif);
/**
* rt2x00queue_index_inc - Index incrementation function
* @ entry : Queue entry ( & struct queue_entry ) to perform the action on .
* @ index : Index type ( & enum queue_index ) to perform the action on .
*
* This function will increase the requested index on the entry ' s queue ,
* it will grab the appropriate locks and handle queue overflow events by
* resetting the index to the start of the queue .
*/
void rt2x00queue_index_inc(struct queue_entry *entry, enum queue_index index);
/**
* rt2x00queue_init_queues - Initialize all data queues
* @ rt2x00dev : Pointer to & struct rt2x00_dev .
*
* This function will loop through all available queues to clear all
* index numbers and set the queue entry to the correct initialization
* state .
*/
void rt2x00queue_init_queues(struct rt2x00_dev *rt2x00dev);
int rt2x00queue_initialize(struct rt2x00_dev *rt2x00dev);
void rt2x00queue_uninitialize(struct rt2x00_dev *rt2x00dev);
int rt2x00queue_allocate(struct rt2x00_dev *rt2x00dev);
void rt2x00queue_free(struct rt2x00_dev *rt2x00dev);
/**
* rt2x00link_update_stats - Update link statistics from RX frame
* @ rt2x00dev : Pointer to & struct rt2x00_dev .
* @ skb : Received frame
* @ rxdesc : Received frame descriptor
*
* Update link statistics based on the information from the
* received frame descriptor .
*/
void rt2x00link_update_stats(struct rt2x00_dev *rt2x00dev,
struct sk_buff *skb,
struct rxdone_entry_desc *rxdesc);
/**
* rt2x00link_start_tuner - Start periodic link tuner work
* @ rt2x00dev : Pointer to & struct rt2x00_dev .
*
* This start the link tuner periodic work , this work will
* be executed periodically until & rt2x00link_stop_tuner has
* been called .
*/
void rt2x00link_start_tuner(struct rt2x00_dev *rt2x00dev);
/**
* rt2x00link_stop_tuner - Stop periodic link tuner work
* @ rt2x00dev : Pointer to & struct rt2x00_dev .
*
* After this function completed the link tuner will not
* be running until & rt2x00link_start_tuner is called .
*/
void rt2x00link_stop_tuner(struct rt2x00_dev *rt2x00dev);
/**
* rt2x00link_reset_tuner - Reset periodic link tuner work
* @ rt2x00dev : Pointer to & struct rt2x00_dev .
* @ antenna : Should the antenna tuning also be reset
*
* The VGC limit configured in the hardware will be reset to 0
* which forces the driver to rediscover the correct value for
* the current association . This is needed when configuration
* options have changed which could drastically change the
* SNR level or link quality ( i . e . changing the antenna setting ) .
*
* Resetting the link tuner will also cause the periodic work counter
* to be reset . Any driver which has a fixed limit on the number
* of rounds the link tuner is supposed to work will accept the
* tuner actions again if this limit was previously reached .
*
* If @ antenna is set to true a the software antenna diversity
* tuning will also be reset .
*/
void rt2x00link_reset_tuner(struct rt2x00_dev *rt2x00dev, bool antenna);
/**
* rt2x00link_start_watchdog - Start periodic watchdog monitoring
* @ rt2x00dev : Pointer to & struct rt2x00_dev .
*
* This start the watchdog periodic work , this work will
* be executed periodically until & rt2x00link_stop_watchdog has
* been called .
*/
void rt2x00link_start_watchdog(struct rt2x00_dev *rt2x00dev);
/**
* rt2x00link_stop_watchdog - Stop periodic watchdog monitoring
* @ rt2x00dev : Pointer to & struct rt2x00_dev .
*
* After this function completed the watchdog monitoring will not
* be running until & rt2x00link_start_watchdog is called .
*/
void rt2x00link_stop_watchdog(struct rt2x00_dev *rt2x00dev);
/**
* rt2x00link_register - Initialize link tuning & watchdog functionality
* @ rt2x00dev : Pointer to & struct rt2x00_dev .
*
* Initialize work structure and all link tuning and watchdog related
* parameters . This will not start the periodic work itself .
*/
void rt2x00link_register(struct rt2x00_dev *rt2x00dev);
/*
* Firmware handlers .
*/
#ifdef CONFIG_RT2X00_LIB_FIRMWARE
int rt2x00lib_load_firmware(struct rt2x00_dev *rt2x00dev);
void rt2x00lib_free_firmware(struct rt2x00_dev *rt2x00dev);
#else
static inline int rt2x00lib_load_firmware(struct rt2x00_dev *rt2x00dev)
{
return 0 ;
}
static inline void rt2x00lib_free_firmware(struct rt2x00_dev *rt2x00dev)
{
}
#endif /* CONFIG_RT2X00_LIB_FIRMWARE */
/*
* Debugfs handlers .
*/
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
void rt2x00debug_register(struct rt2x00_dev *rt2x00dev);
void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev);
void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev,
struct rxdone_entry_desc *rxdesc);
#else
static inline void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
{
}
static inline void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev)
{
}
static inline void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev,
struct rxdone_entry_desc *rxdesc)
{
}
#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
/*
* Crypto handlers .
*/
#ifdef CONFIG_RT2X00_LIB_CRYPTO
enum cipher rt2x00crypto_key_to_cipher(struct ieee80211_key_conf *key);
void rt2x00crypto_create_tx_descriptor(struct rt2x00_dev *rt2x00dev,
struct sk_buff *skb,
struct txentry_desc *txdesc);
unsigned int rt2x00crypto_tx_overhead(struct rt2x00_dev *rt2x00dev,
struct sk_buff *skb);
void rt2x00crypto_tx_copy_iv(struct sk_buff *skb,
struct txentry_desc *txdesc);
void rt2x00crypto_tx_remove_iv(struct sk_buff *skb,
struct txentry_desc *txdesc);
void rt2x00crypto_tx_insert_iv(struct sk_buff *skb, unsigned int header_length);
void rt2x00crypto_rx_insert_iv(struct sk_buff *skb,
unsigned int header_length,
struct rxdone_entry_desc *rxdesc);
#else
static inline enum cipher rt2x00crypto_key_to_cipher(struct ieee80211_key_conf *key)
{
return CIPHER_NONE;
}
static inline void rt2x00crypto_create_tx_descriptor(struct rt2x00_dev *rt2x00dev,
struct sk_buff *skb,
struct txentry_desc *txdesc)
{
}
static inline unsigned int rt2x00crypto_tx_overhead(struct rt2x00_dev *rt2x00dev,
struct sk_buff *skb)
{
return 0 ;
}
static inline void rt2x00crypto_tx_copy_iv(struct sk_buff *skb,
struct txentry_desc *txdesc)
{
}
static inline void rt2x00crypto_tx_remove_iv(struct sk_buff *skb,
struct txentry_desc *txdesc)
{
}
static inline void rt2x00crypto_tx_insert_iv(struct sk_buff *skb,
unsigned int header_length)
{
}
static inline void rt2x00crypto_rx_insert_iv(struct sk_buff *skb,
unsigned int header_length,
struct rxdone_entry_desc *rxdesc)
{
}
#endif /* CONFIG_RT2X00_LIB_CRYPTO */
/*
* RFkill handlers .
*/
static inline void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev)
{
if (test_bit(CAPABILITY_HW_BUTTON, &rt2x00dev->cap_flags))
wiphy_rfkill_start_polling(rt2x00dev->hw->wiphy);
}
static inline void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev)
{
if (test_bit(CAPABILITY_HW_BUTTON, &rt2x00dev->cap_flags))
wiphy_rfkill_stop_polling(rt2x00dev->hw->wiphy);
}
/*
* LED handlers
*/
#ifdef CONFIG_RT2X00_LIB_LEDS
void rt2x00leds_led_quality(struct rt2x00_dev *rt2x00dev, int rssi);
void rt2x00led_led_activity(struct rt2x00_dev *rt2x00dev, bool enabled);
void rt2x00leds_led_assoc(struct rt2x00_dev *rt2x00dev, bool enabled);
void rt2x00leds_led_radio(struct rt2x00_dev *rt2x00dev, bool enabled);
void rt2x00leds_register(struct rt2x00_dev *rt2x00dev);
void rt2x00leds_unregister(struct rt2x00_dev *rt2x00dev);
void rt2x00leds_suspend(struct rt2x00_dev *rt2x00dev);
void rt2x00leds_resume(struct rt2x00_dev *rt2x00dev);
#else
static inline void rt2x00leds_led_quality(struct rt2x00_dev *rt2x00dev,
int rssi)
{
}
static inline void rt2x00led_led_activity(struct rt2x00_dev *rt2x00dev,
bool enabled)
{
}
static inline void rt2x00leds_led_assoc(struct rt2x00_dev *rt2x00dev,
bool enabled)
{
}
static inline void rt2x00leds_led_radio(struct rt2x00_dev *rt2x00dev,
bool enabled)
{
}
static inline void rt2x00leds_register(struct rt2x00_dev *rt2x00dev)
{
}
static inline void rt2x00leds_unregister(struct rt2x00_dev *rt2x00dev)
{
}
static inline void rt2x00leds_suspend(struct rt2x00_dev *rt2x00dev)
{
}
static inline void rt2x00leds_resume(struct rt2x00_dev *rt2x00dev)
{
}
#endif /* CONFIG_RT2X00_LIB_LEDS */
#endif /* RT2X00LIB_H */
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2026-10-11
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