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69cf36a452
This patch allows to dynamically remove beaconing interfaces without shutting beaconing down on all interfaces. The only place to start and stop beaconing are now the start- and stop_queue callbacks. Hence, we can remove some register writes during interface bring up (config_intf) and only write the correct sync mode to the register there. When multiple beaconing interfaces are present we should enable beaconing as soon as mac80211 enables beaconing on at least one of them. The beacon queue gets stopped when the last beaconing interface was stopped by mac80211. Therefore, introduce another interface counter to keep track ot the number of enabled beaconing interfaces and start or stop the beacon queue accordingly. To allow single interfaces to stop beaconing, add a new driver callback clear_beacon to clear a single interface's beacon without affecting the other interfaces. Don't overload the clear_entry callback for clearing beacons as that would introduce additional overhead (check for each TX queue) into the clear_entry callback which is used on the drivers TX/RX hotpaths. Furthermore, the write beacon callback doesn't need to enable beaconing anymore but since beaconing should be disabled while a new beacon is written or cleared we still disable beacon generation and enable it afterwards again in the driver specific callbacks. However, beacon related interrupts should not be disabled/enabled here, that's solely done from the start- and stop queue callbacks. It would be nice to stop the beacon queue just before the beacon update and enable it afterwards in rt2x00queue itself instead of the current implementation that relies on the driver doing the right thing. However, since start- and stop_queue are mutex protected we cannot use them for atomic beacon updates. Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
208 lines
7.4 KiB
C
208 lines
7.4 KiB
C
/*
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Copyright (C) 2010 Willow Garage <http://www.willowgarage.com>
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Copyright (C) 2010 Ivo van Doorn <IvDoorn@gmail.com>
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Copyright (C) 2009 Bartlomiej Zolnierkiewicz
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the
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Free Software Foundation, Inc.,
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59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef RT2800LIB_H
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#define RT2800LIB_H
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struct rt2800_ops {
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void (*register_read)(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset, u32 *value);
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void (*register_read_lock)(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset, u32 *value);
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void (*register_write)(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset, u32 value);
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void (*register_write_lock)(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset, u32 value);
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void (*register_multiread)(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset,
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void *value, const u32 length);
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void (*register_multiwrite)(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset,
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const void *value, const u32 length);
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int (*regbusy_read)(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset,
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const struct rt2x00_field32 field, u32 *reg);
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int (*drv_write_firmware)(struct rt2x00_dev *rt2x00dev,
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const u8 *data, const size_t len);
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int (*drv_init_registers)(struct rt2x00_dev *rt2x00dev);
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__le32 *(*drv_get_txwi)(struct queue_entry *entry);
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};
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static inline void rt2800_register_read(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset,
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u32 *value)
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{
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const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
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rt2800ops->register_read(rt2x00dev, offset, value);
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}
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static inline void rt2800_register_read_lock(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset,
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u32 *value)
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{
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const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
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rt2800ops->register_read_lock(rt2x00dev, offset, value);
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}
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static inline void rt2800_register_write(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset,
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u32 value)
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{
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const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
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rt2800ops->register_write(rt2x00dev, offset, value);
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}
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static inline void rt2800_register_write_lock(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset,
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u32 value)
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{
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const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
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rt2800ops->register_write_lock(rt2x00dev, offset, value);
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}
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static inline void rt2800_register_multiread(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset,
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void *value, const u32 length)
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{
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const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
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rt2800ops->register_multiread(rt2x00dev, offset, value, length);
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}
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static inline void rt2800_register_multiwrite(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset,
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const void *value,
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const u32 length)
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{
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const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
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rt2800ops->register_multiwrite(rt2x00dev, offset, value, length);
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}
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static inline int rt2800_regbusy_read(struct rt2x00_dev *rt2x00dev,
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const unsigned int offset,
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const struct rt2x00_field32 field,
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u32 *reg)
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{
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const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
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return rt2800ops->regbusy_read(rt2x00dev, offset, field, reg);
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}
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static inline int rt2800_drv_write_firmware(struct rt2x00_dev *rt2x00dev,
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const u8 *data, const size_t len)
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{
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const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
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return rt2800ops->drv_write_firmware(rt2x00dev, data, len);
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}
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static inline int rt2800_drv_init_registers(struct rt2x00_dev *rt2x00dev)
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{
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const struct rt2800_ops *rt2800ops = rt2x00dev->ops->drv;
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return rt2800ops->drv_init_registers(rt2x00dev);
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}
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static inline __le32 *rt2800_drv_get_txwi(struct queue_entry *entry)
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{
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const struct rt2800_ops *rt2800ops = entry->queue->rt2x00dev->ops->drv;
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return rt2800ops->drv_get_txwi(entry);
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}
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void rt2800_mcu_request(struct rt2x00_dev *rt2x00dev,
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const u8 command, const u8 token,
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const u8 arg0, const u8 arg1);
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int rt2800_wait_csr_ready(struct rt2x00_dev *rt2x00dev);
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int rt2800_wait_wpdma_ready(struct rt2x00_dev *rt2x00dev);
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int rt2800_check_firmware(struct rt2x00_dev *rt2x00dev,
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const u8 *data, const size_t len);
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int rt2800_load_firmware(struct rt2x00_dev *rt2x00dev,
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const u8 *data, const size_t len);
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void rt2800_write_tx_data(struct queue_entry *entry,
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struct txentry_desc *txdesc);
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void rt2800_process_rxwi(struct queue_entry *entry, struct rxdone_entry_desc *txdesc);
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void rt2800_txdone(struct rt2x00_dev *rt2x00dev);
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void rt2800_txdone_entry(struct queue_entry *entry, u32 status);
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void rt2800_write_beacon(struct queue_entry *entry, struct txentry_desc *txdesc);
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void rt2800_clear_beacon(struct queue_entry *entry);
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extern const struct rt2x00debug rt2800_rt2x00debug;
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int rt2800_rfkill_poll(struct rt2x00_dev *rt2x00dev);
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int rt2800_config_shared_key(struct rt2x00_dev *rt2x00dev,
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struct rt2x00lib_crypto *crypto,
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struct ieee80211_key_conf *key);
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int rt2800_config_pairwise_key(struct rt2x00_dev *rt2x00dev,
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struct rt2x00lib_crypto *crypto,
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struct ieee80211_key_conf *key);
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void rt2800_config_filter(struct rt2x00_dev *rt2x00dev,
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const unsigned int filter_flags);
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void rt2800_config_intf(struct rt2x00_dev *rt2x00dev, struct rt2x00_intf *intf,
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struct rt2x00intf_conf *conf, const unsigned int flags);
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void rt2800_config_erp(struct rt2x00_dev *rt2x00dev, struct rt2x00lib_erp *erp,
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u32 changed);
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void rt2800_config_ant(struct rt2x00_dev *rt2x00dev, struct antenna_setup *ant);
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void rt2800_config(struct rt2x00_dev *rt2x00dev,
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struct rt2x00lib_conf *libconf,
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const unsigned int flags);
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void rt2800_link_stats(struct rt2x00_dev *rt2x00dev, struct link_qual *qual);
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void rt2800_reset_tuner(struct rt2x00_dev *rt2x00dev, struct link_qual *qual);
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void rt2800_link_tuner(struct rt2x00_dev *rt2x00dev, struct link_qual *qual,
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const u32 count);
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int rt2800_enable_radio(struct rt2x00_dev *rt2x00dev);
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void rt2800_disable_radio(struct rt2x00_dev *rt2x00dev);
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int rt2800_efuse_detect(struct rt2x00_dev *rt2x00dev);
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void rt2800_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev);
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int rt2800_validate_eeprom(struct rt2x00_dev *rt2x00dev);
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int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev);
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int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev);
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void rt2800_get_tkip_seq(struct ieee80211_hw *hw, u8 hw_key_idx, u32 *iv32,
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u16 *iv16);
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int rt2800_set_rts_threshold(struct ieee80211_hw *hw, u32 value);
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int rt2800_conf_tx(struct ieee80211_hw *hw, u16 queue_idx,
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const struct ieee80211_tx_queue_params *params);
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u64 rt2800_get_tsf(struct ieee80211_hw *hw);
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int rt2800_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
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enum ieee80211_ampdu_mlme_action action,
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struct ieee80211_sta *sta, u16 tid, u16 *ssn,
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u8 buf_size);
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int rt2800_get_survey(struct ieee80211_hw *hw, int idx,
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struct survey_info *survey);
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#endif /* RT2800LIB_H */
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