| /* |
| Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com> |
| Copyright (C) 2004 - 2009 Gertjan van Wingerde <gwingerde@gmail.com> |
| <http://rt2x00.serialmonkey.com> |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the |
| Free Software Foundation, Inc., |
| 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| */ |
| |
| /* |
| 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_INTERVAL round_jiffies_relative(HZ) |
| |
| /* |
| * 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); |
| void rt2x00lib_toggle_rx(struct rt2x00_dev *rt2x00dev, enum dev_state state); |
| |
| /* |
| * 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); |
| 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. |
| * @rt2x00dev: Pointer to &struct rt2x00_dev. |
| * @queue: The queue for which the skb will be applicable. |
| */ |
| struct sk_buff *rt2x00queue_alloc_rxskb(struct rt2x00_dev *rt2x00dev, |
| struct queue_entry *entry); |
| |
| /** |
| * rt2x00queue_free_skb - free a skb |
| * @rt2x00dev: Pointer to &struct rt2x00_dev. |
| * @skb: The skb to free. |
| */ |
| void rt2x00queue_free_skb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb); |
| |
| /** |
| * 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_align_payload - Align 802.11 payload to 4-byte boundary |
| * @skb: The skb to align |
| * @header_length: Length of 802.11 header |
| * |
| * Align the 802.11 payload to a 4-byte boundary, this could |
| * mean the header is not aligned properly though. |
| */ |
| void rt2x00queue_align_payload(struct sk_buff *skb, unsigned int header_length); |
| |
| /** |
| * 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, |
| bool local); |
| |
| /** |
| * rt2x00queue_update_beacon - Send new beacon from mac80211 to hardware |
| * @rt2x00dev: Pointer to &struct rt2x00_dev. |
| * @vif: Interface for which the beacon should be updated. |
| * @enable_beacon: Enable beaconing |
| */ |
| int rt2x00queue_update_beacon(struct rt2x00_dev *rt2x00dev, |
| struct ieee80211_vif *vif, |
| const bool enable_beacon); |
| |
| /** |
| * rt2x00queue_index_inc - Index incrementation function |
| * @queue: Queue (&struct data_queue) 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 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 data_queue *queue, enum queue_index index); |
| |
| /** |
| * rt2x00queue_stop_queues - Halt all data queues |
| * @rt2x00dev: Pointer to &struct rt2x00_dev. |
| * |
| * This function will loop through all available queues to stop |
| * any pending outgoing frames. |
| */ |
| void rt2x00queue_stop_queues(struct rt2x00_dev *rt2x00dev); |
| |
| /** |
| * 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 queue_entry *entry, |
| 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 queue_entry *entry, |
| 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 */ |
| |
| /* |
| * HT handlers. |
| */ |
| #ifdef CONFIG_RT2X00_LIB_HT |
| void rt2x00ht_create_tx_descriptor(struct queue_entry *entry, |
| struct txentry_desc *txdesc, |
| const struct rt2x00_rate *hwrate); |
| |
| u16 rt2x00ht_center_channel(struct rt2x00_dev *rt2x00dev, |
| struct ieee80211_conf *conf); |
| #else |
| static inline void rt2x00ht_create_tx_descriptor(struct queue_entry *entry, |
| struct txentry_desc *txdesc, |
| const struct rt2x00_rate *hwrate) |
| { |
| } |
| |
| static inline u16 rt2x00ht_center_channel(struct rt2x00_dev *rt2x00dev, |
| struct ieee80211_conf *conf) |
| { |
| return conf->channel->hw_value; |
| } |
| #endif /* CONFIG_RT2X00_LIB_HT */ |
| |
| /* |
| * RFkill handlers. |
| */ |
| static inline void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev) |
| { |
| if (test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags)) |
| wiphy_rfkill_start_polling(rt2x00dev->hw->wiphy); |
| } |
| |
| static inline void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev) |
| { |
| if (test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->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 */ |