435 lines
13 KiB
C
435 lines
13 KiB
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 0x0001
|
||
|
|
#define DEV_RATE_OFDM 0x0002
|
||
|
|
#define DEV_RATE_SHORT_PREAMBLE 0x0004
|
||
|
|
|
||
|
|
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 & 0xff];
|
||
|
|
}
|
||
|
|
|
||
|
|
#define RATE_MCS(__mode, __mcs) \
|
||
|
|
((((__mode) & 0x00ff) << 8) | ((__mcs) & 0x00ff))
|
||
|
|
|
||
|
|
static inline int rt2x00_get_rate_mcs(const u16 mcs_value)
|
||
|
|
{
|
||
|
|
return (mcs_value & 0x00ff);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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 */
|