f5507ce90b
rt2500usb initialized the SIFS and EIFS without using the
values coming from rt2x000lib. After this is fixed HWMODE_{A,B,G}
is now unused and can be removed in favour of the ieee80211_band
enumeration which could still be usefull later.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
985 lines
25 KiB
C
985 lines
25 KiB
C
/*
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Copyright (C) 2004 - 2008 rt2x00 SourceForge Project
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<http://rt2x00.serialmonkey.com>
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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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/*
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Module: rt2x00
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Abstract: rt2x00 global information.
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*/
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#ifndef RT2X00_H
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#define RT2X00_H
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#include <linux/bitops.h>
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#include <linux/skbuff.h>
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#include <linux/workqueue.h>
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#include <linux/firmware.h>
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#include <linux/mutex.h>
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#include <linux/etherdevice.h>
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#include <net/mac80211.h>
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#include "rt2x00debug.h"
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#include "rt2x00reg.h"
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#include "rt2x00queue.h"
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/*
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* Module information.
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*/
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#define DRV_VERSION "2.0.14"
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#define DRV_PROJECT "http://rt2x00.serialmonkey.com"
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/*
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* Debug definitions.
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* Debug output has to be enabled during compile time.
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*/
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#define DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, __args...) \
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printk(__kernlvl "%s -> %s: %s - " __msg, \
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wiphy_name((__dev)->hw->wiphy), __FUNCTION__, __lvl, ##__args)
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#define DEBUG_PRINTK_PROBE(__kernlvl, __lvl, __msg, __args...) \
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printk(__kernlvl "%s -> %s: %s - " __msg, \
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KBUILD_MODNAME, __FUNCTION__, __lvl, ##__args)
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#ifdef CONFIG_RT2X00_DEBUG
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#define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \
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DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, ##__args);
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#else
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#define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \
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do { } while (0)
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#endif /* CONFIG_RT2X00_DEBUG */
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/*
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* Various debug levels.
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* The debug levels PANIC and ERROR both indicate serious problems,
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* for this reason they should never be ignored.
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* The special ERROR_PROBE message is for messages that are generated
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* when the rt2x00_dev is not yet initialized.
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*/
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#define PANIC(__dev, __msg, __args...) \
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DEBUG_PRINTK_MSG(__dev, KERN_CRIT, "Panic", __msg, ##__args)
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#define ERROR(__dev, __msg, __args...) \
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DEBUG_PRINTK_MSG(__dev, KERN_ERR, "Error", __msg, ##__args)
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#define ERROR_PROBE(__msg, __args...) \
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DEBUG_PRINTK_PROBE(KERN_ERR, "Error", __msg, ##__args)
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#define WARNING(__dev, __msg, __args...) \
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DEBUG_PRINTK(__dev, KERN_WARNING, "Warning", __msg, ##__args)
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#define NOTICE(__dev, __msg, __args...) \
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DEBUG_PRINTK(__dev, KERN_NOTICE, "Notice", __msg, ##__args)
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#define INFO(__dev, __msg, __args...) \
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DEBUG_PRINTK(__dev, KERN_INFO, "Info", __msg, ##__args)
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#define DEBUG(__dev, __msg, __args...) \
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DEBUG_PRINTK(__dev, KERN_DEBUG, "Debug", __msg, ##__args)
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#define EEPROM(__dev, __msg, __args...) \
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DEBUG_PRINTK(__dev, KERN_DEBUG, "EEPROM recovery", __msg, ##__args)
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/*
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* Standard timing and size defines.
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* These values should follow the ieee80211 specifications.
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*/
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#define ACK_SIZE 14
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#define IEEE80211_HEADER 24
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#define PLCP 48
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#define BEACON 100
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#define PREAMBLE 144
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#define SHORT_PREAMBLE 72
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#define SLOT_TIME 20
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#define SHORT_SLOT_TIME 9
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#define SIFS 10
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#define PIFS ( SIFS + SLOT_TIME )
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#define SHORT_PIFS ( SIFS + SHORT_SLOT_TIME )
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#define DIFS ( PIFS + SLOT_TIME )
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#define SHORT_DIFS ( SHORT_PIFS + SHORT_SLOT_TIME )
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#define EIFS ( SIFS + (8 * (IEEE80211_HEADER + ACK_SIZE)) )
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/*
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* IEEE802.11 header defines
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*/
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static inline int is_rts_frame(u16 fc)
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{
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return (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) &&
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((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_RTS));
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}
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static inline int is_cts_frame(u16 fc)
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{
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return (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) &&
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((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_CTS));
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}
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static inline int is_probe_resp(u16 fc)
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{
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return (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) &&
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((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP));
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}
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static inline int is_beacon(u16 fc)
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{
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return (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) &&
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((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON));
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}
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/*
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* Chipset identification
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* The chipset on the device is composed of a RT and RF chip.
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* The chipset combination is important for determining device capabilities.
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*/
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struct rt2x00_chip {
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u16 rt;
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#define RT2460 0x0101
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#define RT2560 0x0201
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#define RT2570 0x1201
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#define RT2561s 0x0301 /* Turbo */
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#define RT2561 0x0302
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#define RT2661 0x0401
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#define RT2571 0x1300
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u16 rf;
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u32 rev;
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};
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/*
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* RF register values that belong to a particular channel.
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*/
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struct rf_channel {
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int channel;
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u32 rf1;
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u32 rf2;
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u32 rf3;
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u32 rf4;
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};
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/*
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* Antenna setup values.
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*/
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struct antenna_setup {
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enum antenna rx;
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enum antenna tx;
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};
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/*
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* Quality statistics about the currently active link.
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*/
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struct link_qual {
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/*
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* Statistics required for Link tuning.
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* For the average RSSI value we use the "Walking average" approach.
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* When adding RSSI to the average value the following calculation
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* is needed:
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*
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* avg_rssi = ((avg_rssi * 7) + rssi) / 8;
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*
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* The advantage of this approach is that we only need 1 variable
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* to store the average in (No need for a count and a total).
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* But more importantly, normal average values will over time
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* move less and less towards newly added values this results
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* that with link tuning, the device can have a very good RSSI
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* for a few minutes but when the device is moved away from the AP
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* the average will not decrease fast enough to compensate.
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* The walking average compensates this and will move towards
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* the new values correctly allowing a effective link tuning.
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*/
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int avg_rssi;
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int false_cca;
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/*
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* Statistics required for Signal quality calculation.
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* For calculating the Signal quality we have to determine
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* the total number of success and failed RX and TX frames.
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* After that we also use the average RSSI value to help
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* determining the signal quality.
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* For the calculation we will use the following algorithm:
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*
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* rssi_percentage = (avg_rssi * 100) / rssi_offset
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* rx_percentage = (rx_success * 100) / rx_total
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* tx_percentage = (tx_success * 100) / tx_total
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* avg_signal = ((WEIGHT_RSSI * avg_rssi) +
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* (WEIGHT_TX * tx_percentage) +
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* (WEIGHT_RX * rx_percentage)) / 100
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*
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* This value should then be checked to not be greated then 100.
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*/
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int rx_percentage;
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int rx_success;
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int rx_failed;
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int tx_percentage;
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int tx_success;
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int tx_failed;
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#define WEIGHT_RSSI 20
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#define WEIGHT_RX 40
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#define WEIGHT_TX 40
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};
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/*
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* Antenna settings about the currently active link.
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*/
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struct link_ant {
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/*
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* Antenna flags
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*/
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unsigned int flags;
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#define ANTENNA_RX_DIVERSITY 0x00000001
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#define ANTENNA_TX_DIVERSITY 0x00000002
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#define ANTENNA_MODE_SAMPLE 0x00000004
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/*
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* Currently active TX/RX antenna setup.
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* When software diversity is used, this will indicate
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* which antenna is actually used at this time.
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*/
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struct antenna_setup active;
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/*
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* RSSI information for the different antenna's.
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* These statistics are used to determine when
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* to switch antenna when using software diversity.
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*
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* rssi[0] -> Antenna A RSSI
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* rssi[1] -> Antenna B RSSI
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*/
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int rssi_history[2];
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/*
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* Current RSSI average of the currently active antenna.
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* Similar to the avg_rssi in the link_qual structure
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* this value is updated by using the walking average.
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*/
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int rssi_ant;
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};
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/*
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* To optimize the quality of the link we need to store
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* the quality of received frames and periodically
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* optimize the link.
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*/
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struct link {
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/*
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* Link tuner counter
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* The number of times the link has been tuned
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* since the radio has been switched on.
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*/
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u32 count;
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/*
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* Quality measurement values.
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*/
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struct link_qual qual;
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/*
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* TX/RX antenna setup.
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*/
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struct link_ant ant;
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/*
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* Active VGC level
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*/
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int vgc_level;
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/*
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* Work structure for scheduling periodic link tuning.
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*/
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struct delayed_work work;
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};
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/*
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* Small helper macro to work with moving/walking averages.
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*/
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#define MOVING_AVERAGE(__avg, __val, __samples) \
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( (((__avg) * ((__samples) - 1)) + (__val)) / (__samples) )
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/*
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* When we lack RSSI information return something less then -80 to
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* tell the driver to tune the device to maximum sensitivity.
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*/
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#define DEFAULT_RSSI ( -128 )
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/*
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* Link quality access functions.
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*/
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static inline int rt2x00_get_link_rssi(struct link *link)
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{
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if (link->qual.avg_rssi && link->qual.rx_success)
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return link->qual.avg_rssi;
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return DEFAULT_RSSI;
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}
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static inline int rt2x00_get_link_ant_rssi(struct link *link)
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{
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if (link->ant.rssi_ant && link->qual.rx_success)
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return link->ant.rssi_ant;
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return DEFAULT_RSSI;
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}
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static inline int rt2x00_get_link_ant_rssi_history(struct link *link,
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enum antenna ant)
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{
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if (link->ant.rssi_history[ant - ANTENNA_A])
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return link->ant.rssi_history[ant - ANTENNA_A];
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return DEFAULT_RSSI;
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}
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static inline int rt2x00_update_ant_rssi(struct link *link, int rssi)
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{
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int old_rssi = link->ant.rssi_history[link->ant.active.rx - ANTENNA_A];
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link->ant.rssi_history[link->ant.active.rx - ANTENNA_A] = rssi;
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return old_rssi;
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}
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/*
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* Interface structure
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* Per interface configuration details, this structure
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* is allocated as the private data for ieee80211_vif.
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*/
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struct rt2x00_intf {
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/*
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* All fields within the rt2x00_intf structure
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* must be protected with a spinlock.
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*/
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spinlock_t lock;
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/*
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* BSS configuration. Copied from the structure
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* passed to us through the bss_info_changed()
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* callback funtion.
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*/
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struct ieee80211_bss_conf conf;
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/*
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* MAC of the device.
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*/
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u8 mac[ETH_ALEN];
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/*
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* BBSID of the AP to associate with.
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*/
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u8 bssid[ETH_ALEN];
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/*
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* Entry in the beacon queue which belongs to
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* this interface. Each interface has its own
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* dedicated beacon entry.
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*/
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struct queue_entry *beacon;
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/*
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* Actions that needed rescheduling.
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*/
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unsigned int delayed_flags;
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#define DELAYED_UPDATE_BEACON 0x00000001
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#define DELAYED_CONFIG_PREAMBLE 0x00000002
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};
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static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif)
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{
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return (struct rt2x00_intf *)vif->drv_priv;
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}
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|
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/*
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* Details about the supported modes, rates and channels
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* of a particular chipset. This is used by rt2x00lib
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* to build the ieee80211_hw_mode array for mac80211.
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*/
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struct hw_mode_spec {
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/*
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* Number of modes, rates and channels.
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*/
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int num_modes;
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int num_rates;
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int num_channels;
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/*
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* txpower values.
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*/
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const u8 *tx_power_a;
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const u8 *tx_power_bg;
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u8 tx_power_default;
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/*
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* Device/chipset specific value.
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*/
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const struct rf_channel *channels;
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};
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|
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/*
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* Configuration structure wrapper around the
|
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* mac80211 configuration structure.
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* When mac80211 configures the driver, rt2x00lib
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* can precalculate values which are equal for all
|
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* rt2x00 drivers. Those values can be stored in here.
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*/
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struct rt2x00lib_conf {
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struct ieee80211_conf *conf;
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struct rf_channel rf;
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struct antenna_setup ant;
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|
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enum ieee80211_band band;
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|
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int basic_rates;
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int slot_time;
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short sifs;
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short pifs;
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short difs;
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short eifs;
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};
|
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|
|
/*
|
|
* Configuration structure wrapper around the
|
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* rt2x00 interface configuration handler.
|
|
*/
|
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struct rt2x00intf_conf {
|
|
/*
|
|
* Interface type
|
|
*/
|
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enum ieee80211_if_types type;
|
|
|
|
/*
|
|
* TSF sync value, this is dependant on the operation type.
|
|
*/
|
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enum tsf_sync sync;
|
|
|
|
/*
|
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* The MAC and BSSID addressess are simple array of bytes,
|
|
* these arrays are little endian, so when sending the addressess
|
|
* to the drivers, copy the it into a endian-signed variable.
|
|
*
|
|
* Note that all devices (except rt2500usb) have 32 bits
|
|
* register word sizes. This means that whatever variable we
|
|
* pass _must_ be a multiple of 32 bits. Otherwise the device
|
|
* might not accept what we are sending to it.
|
|
* This will also make it easier for the driver to write
|
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* the data to the device.
|
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*/
|
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__le32 mac[2];
|
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__le32 bssid[2];
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};
|
|
|
|
/*
|
|
* rt2x00lib callback functions.
|
|
*/
|
|
struct rt2x00lib_ops {
|
|
/*
|
|
* Interrupt handlers.
|
|
*/
|
|
irq_handler_t irq_handler;
|
|
|
|
/*
|
|
* Device init handlers.
|
|
*/
|
|
int (*probe_hw) (struct rt2x00_dev *rt2x00dev);
|
|
char *(*get_firmware_name) (struct rt2x00_dev *rt2x00dev);
|
|
int (*load_firmware) (struct rt2x00_dev *rt2x00dev, void *data,
|
|
const size_t len);
|
|
|
|
/*
|
|
* Device initialization/deinitialization handlers.
|
|
*/
|
|
int (*initialize) (struct rt2x00_dev *rt2x00dev);
|
|
void (*uninitialize) (struct rt2x00_dev *rt2x00dev);
|
|
|
|
/*
|
|
* queue initialization handlers
|
|
*/
|
|
void (*init_rxentry) (struct rt2x00_dev *rt2x00dev,
|
|
struct queue_entry *entry);
|
|
void (*init_txentry) (struct rt2x00_dev *rt2x00dev,
|
|
struct queue_entry *entry);
|
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|
|
/*
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|
* Radio control handlers.
|
|
*/
|
|
int (*set_device_state) (struct rt2x00_dev *rt2x00dev,
|
|
enum dev_state state);
|
|
int (*rfkill_poll) (struct rt2x00_dev *rt2x00dev);
|
|
void (*link_stats) (struct rt2x00_dev *rt2x00dev,
|
|
struct link_qual *qual);
|
|
void (*reset_tuner) (struct rt2x00_dev *rt2x00dev);
|
|
void (*link_tuner) (struct rt2x00_dev *rt2x00dev);
|
|
|
|
/*
|
|
* TX control handlers
|
|
*/
|
|
void (*write_tx_desc) (struct rt2x00_dev *rt2x00dev,
|
|
struct sk_buff *skb,
|
|
struct txentry_desc *txdesc,
|
|
struct ieee80211_tx_control *control);
|
|
int (*write_tx_data) (struct rt2x00_dev *rt2x00dev,
|
|
struct data_queue *queue, struct sk_buff *skb,
|
|
struct ieee80211_tx_control *control);
|
|
int (*get_tx_data_len) (struct rt2x00_dev *rt2x00dev,
|
|
struct sk_buff *skb);
|
|
void (*kick_tx_queue) (struct rt2x00_dev *rt2x00dev,
|
|
const unsigned int queue);
|
|
|
|
/*
|
|
* RX control handlers
|
|
*/
|
|
void (*fill_rxdone) (struct queue_entry *entry,
|
|
struct rxdone_entry_desc *rxdesc);
|
|
|
|
/*
|
|
* Configuration handlers.
|
|
*/
|
|
void (*config_intf) (struct rt2x00_dev *rt2x00dev,
|
|
struct rt2x00_intf *intf,
|
|
struct rt2x00intf_conf *conf,
|
|
const unsigned int flags);
|
|
#define CONFIG_UPDATE_TYPE ( 1 << 1 )
|
|
#define CONFIG_UPDATE_MAC ( 1 << 2 )
|
|
#define CONFIG_UPDATE_BSSID ( 1 << 3 )
|
|
|
|
int (*config_preamble) (struct rt2x00_dev *rt2x00dev,
|
|
const int short_preamble,
|
|
const int ack_timeout,
|
|
const int ack_consume_time);
|
|
void (*config) (struct rt2x00_dev *rt2x00dev,
|
|
struct rt2x00lib_conf *libconf,
|
|
const unsigned int flags);
|
|
#define CONFIG_UPDATE_PHYMODE ( 1 << 1 )
|
|
#define CONFIG_UPDATE_CHANNEL ( 1 << 2 )
|
|
#define CONFIG_UPDATE_TXPOWER ( 1 << 3 )
|
|
#define CONFIG_UPDATE_ANTENNA ( 1 << 4 )
|
|
#define CONFIG_UPDATE_SLOT_TIME ( 1 << 5 )
|
|
#define CONFIG_UPDATE_BEACON_INT ( 1 << 6 )
|
|
#define CONFIG_UPDATE_ALL 0xffff
|
|
};
|
|
|
|
/*
|
|
* rt2x00 driver callback operation structure.
|
|
*/
|
|
struct rt2x00_ops {
|
|
const char *name;
|
|
const unsigned int max_sta_intf;
|
|
const unsigned int max_ap_intf;
|
|
const unsigned int eeprom_size;
|
|
const unsigned int rf_size;
|
|
const struct data_queue_desc *rx;
|
|
const struct data_queue_desc *tx;
|
|
const struct data_queue_desc *bcn;
|
|
const struct data_queue_desc *atim;
|
|
const struct rt2x00lib_ops *lib;
|
|
const struct ieee80211_ops *hw;
|
|
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
|
|
const struct rt2x00debug *debugfs;
|
|
#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
|
|
};
|
|
|
|
/*
|
|
* rt2x00 device flags
|
|
*/
|
|
enum rt2x00_flags {
|
|
/*
|
|
* Device state flags
|
|
*/
|
|
DEVICE_PRESENT,
|
|
DEVICE_REGISTERED_HW,
|
|
DEVICE_INITIALIZED,
|
|
DEVICE_STARTED,
|
|
DEVICE_STARTED_SUSPEND,
|
|
DEVICE_ENABLED_RADIO,
|
|
DEVICE_DISABLED_RADIO_HW,
|
|
|
|
/*
|
|
* Driver features
|
|
*/
|
|
DRIVER_SUPPORT_MIXED_INTERFACES,
|
|
DRIVER_REQUIRE_FIRMWARE,
|
|
DRIVER_REQUIRE_FIRMWARE_CRC_ITU_T,
|
|
DRIVER_REQUIRE_FIRMWARE_CCITT,
|
|
DRIVER_REQUIRE_BEACON_GUARD,
|
|
DRIVER_REQUIRE_ATIM_QUEUE,
|
|
|
|
/*
|
|
* Driver configuration
|
|
*/
|
|
CONFIG_SUPPORT_HW_BUTTON,
|
|
CONFIG_FRAME_TYPE,
|
|
CONFIG_RF_SEQUENCE,
|
|
CONFIG_EXTERNAL_LNA_A,
|
|
CONFIG_EXTERNAL_LNA_BG,
|
|
CONFIG_DOUBLE_ANTENNA,
|
|
CONFIG_DISABLE_LINK_TUNING,
|
|
};
|
|
|
|
/*
|
|
* rt2x00 device structure.
|
|
*/
|
|
struct rt2x00_dev {
|
|
/*
|
|
* Device structure.
|
|
* The structure stored in here depends on the
|
|
* system bus (PCI or USB).
|
|
* When accessing this variable, the rt2x00dev_{pci,usb}
|
|
* macro's should be used for correct typecasting.
|
|
*/
|
|
void *dev;
|
|
#define rt2x00dev_pci(__dev) ( (struct pci_dev *)(__dev)->dev )
|
|
#define rt2x00dev_usb(__dev) ( (struct usb_interface *)(__dev)->dev )
|
|
#define rt2x00dev_usb_dev(__dev)\
|
|
( (struct usb_device *)interface_to_usbdev(rt2x00dev_usb(__dev)) )
|
|
|
|
/*
|
|
* Callback functions.
|
|
*/
|
|
const struct rt2x00_ops *ops;
|
|
|
|
/*
|
|
* IEEE80211 control structure.
|
|
*/
|
|
struct ieee80211_hw *hw;
|
|
struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS];
|
|
enum ieee80211_band curr_band;
|
|
|
|
/*
|
|
* rfkill structure for RF state switching support.
|
|
* This will only be compiled in when required.
|
|
*/
|
|
#ifdef CONFIG_RT2X00_LIB_RFKILL
|
|
struct rfkill *rfkill;
|
|
struct input_polled_dev *poll_dev;
|
|
#endif /* CONFIG_RT2X00_LIB_RFKILL */
|
|
|
|
/*
|
|
* If enabled, the debugfs interface structures
|
|
* required for deregistration of debugfs.
|
|
*/
|
|
#ifdef CONFIG_RT2X00_LIB_DEBUGFS
|
|
struct rt2x00debug_intf *debugfs_intf;
|
|
#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
|
|
|
|
/*
|
|
* Device flags.
|
|
* In these flags the current status and some
|
|
* of the device capabilities are stored.
|
|
*/
|
|
unsigned long flags;
|
|
|
|
/*
|
|
* Chipset identification.
|
|
*/
|
|
struct rt2x00_chip chip;
|
|
|
|
/*
|
|
* hw capability specifications.
|
|
*/
|
|
struct hw_mode_spec spec;
|
|
|
|
/*
|
|
* This is the default TX/RX antenna setup as indicated
|
|
* by the device's EEPROM. When mac80211 sets its
|
|
* antenna value to 0 we should be using these values.
|
|
*/
|
|
struct antenna_setup default_ant;
|
|
|
|
/*
|
|
* Register pointers
|
|
* csr_addr: Base register address. (PCI)
|
|
* csr_cache: CSR cache for usb_control_msg. (USB)
|
|
*/
|
|
void __iomem *csr_addr;
|
|
void *csr_cache;
|
|
|
|
/*
|
|
* Mutex to protect register accesses on USB devices.
|
|
* There are 2 reasons this is needed, one is to ensure
|
|
* use of the csr_cache (for USB devices) by one thread
|
|
* isn't corrupted by another thread trying to access it.
|
|
* The other is that access to BBP and RF registers
|
|
* require multiple BUS transactions and if another thread
|
|
* attempted to access one of those registers at the same
|
|
* time one of the writes could silently fail.
|
|
*/
|
|
struct mutex usb_cache_mutex;
|
|
|
|
/*
|
|
* Current packet filter configuration for the device.
|
|
* This contains all currently active FIF_* flags send
|
|
* to us by mac80211 during configure_filter().
|
|
*/
|
|
unsigned int packet_filter;
|
|
|
|
/*
|
|
* Interface details:
|
|
* - Open ap interface count.
|
|
* - Open sta interface count.
|
|
* - Association count.
|
|
*/
|
|
unsigned int intf_ap_count;
|
|
unsigned int intf_sta_count;
|
|
unsigned int intf_associated;
|
|
|
|
/*
|
|
* Link quality
|
|
*/
|
|
struct link link;
|
|
|
|
/*
|
|
* EEPROM data.
|
|
*/
|
|
__le16 *eeprom;
|
|
|
|
/*
|
|
* Active RF register values.
|
|
* These are stored here so we don't need
|
|
* to read the rf registers and can directly
|
|
* use this value instead.
|
|
* This field should be accessed by using
|
|
* rt2x00_rf_read() and rt2x00_rf_write().
|
|
*/
|
|
u32 *rf;
|
|
|
|
/*
|
|
* USB Max frame size (for rt2500usb & rt73usb).
|
|
*/
|
|
u16 usb_maxpacket;
|
|
|
|
/*
|
|
* Current TX power value.
|
|
*/
|
|
u16 tx_power;
|
|
|
|
/*
|
|
* LED register (for rt61pci & rt73usb).
|
|
*/
|
|
u16 led_reg;
|
|
|
|
/*
|
|
* Led mode (LED_MODE_*)
|
|
*/
|
|
u8 led_mode;
|
|
|
|
/*
|
|
* Rssi <-> Dbm offset
|
|
*/
|
|
u8 rssi_offset;
|
|
|
|
/*
|
|
* Frequency offset (for rt61pci & rt73usb).
|
|
*/
|
|
u8 freq_offset;
|
|
|
|
/*
|
|
* Low level statistics which will have
|
|
* to be kept up to date while device is running.
|
|
*/
|
|
struct ieee80211_low_level_stats low_level_stats;
|
|
|
|
/*
|
|
* RX configuration information.
|
|
*/
|
|
struct ieee80211_rx_status rx_status;
|
|
|
|
/*
|
|
* Scheduled work.
|
|
*/
|
|
struct work_struct intf_work;
|
|
struct work_struct filter_work;
|
|
|
|
/*
|
|
* Data queue arrays for RX, TX and Beacon.
|
|
* The Beacon array also contains the Atim queue
|
|
* if that is supported by the device.
|
|
*/
|
|
int data_queues;
|
|
struct data_queue *rx;
|
|
struct data_queue *tx;
|
|
struct data_queue *bcn;
|
|
|
|
/*
|
|
* Firmware image.
|
|
*/
|
|
const struct firmware *fw;
|
|
};
|
|
|
|
/*
|
|
* Generic RF access.
|
|
* The RF is being accessed by word index.
|
|
*/
|
|
static inline void rt2x00_rf_read(struct rt2x00_dev *rt2x00dev,
|
|
const unsigned int word, u32 *data)
|
|
{
|
|
*data = rt2x00dev->rf[word];
|
|
}
|
|
|
|
static inline void rt2x00_rf_write(struct rt2x00_dev *rt2x00dev,
|
|
const unsigned int word, u32 data)
|
|
{
|
|
rt2x00dev->rf[word] = data;
|
|
}
|
|
|
|
/*
|
|
* Generic EEPROM access.
|
|
* The EEPROM is being accessed by word index.
|
|
*/
|
|
static inline void *rt2x00_eeprom_addr(struct rt2x00_dev *rt2x00dev,
|
|
const unsigned int word)
|
|
{
|
|
return (void *)&rt2x00dev->eeprom[word];
|
|
}
|
|
|
|
static inline void rt2x00_eeprom_read(struct rt2x00_dev *rt2x00dev,
|
|
const unsigned int word, u16 *data)
|
|
{
|
|
*data = le16_to_cpu(rt2x00dev->eeprom[word]);
|
|
}
|
|
|
|
static inline void rt2x00_eeprom_write(struct rt2x00_dev *rt2x00dev,
|
|
const unsigned int word, u16 data)
|
|
{
|
|
rt2x00dev->eeprom[word] = cpu_to_le16(data);
|
|
}
|
|
|
|
/*
|
|
* Chipset handlers
|
|
*/
|
|
static inline void rt2x00_set_chip(struct rt2x00_dev *rt2x00dev,
|
|
const u16 rt, const u16 rf, const u32 rev)
|
|
{
|
|
INFO(rt2x00dev,
|
|
"Chipset detected - rt: %04x, rf: %04x, rev: %08x.\n",
|
|
rt, rf, rev);
|
|
|
|
rt2x00dev->chip.rt = rt;
|
|
rt2x00dev->chip.rf = rf;
|
|
rt2x00dev->chip.rev = rev;
|
|
}
|
|
|
|
static inline char rt2x00_rt(const struct rt2x00_chip *chipset, const u16 chip)
|
|
{
|
|
return (chipset->rt == chip);
|
|
}
|
|
|
|
static inline char rt2x00_rf(const struct rt2x00_chip *chipset, const u16 chip)
|
|
{
|
|
return (chipset->rf == chip);
|
|
}
|
|
|
|
static inline u16 rt2x00_rev(const struct rt2x00_chip *chipset)
|
|
{
|
|
return chipset->rev;
|
|
}
|
|
|
|
static inline u16 rt2x00_check_rev(const struct rt2x00_chip *chipset,
|
|
const u32 rev)
|
|
{
|
|
return (((chipset->rev & 0xffff0) == rev) &&
|
|
!!(chipset->rev & 0x0000f));
|
|
}
|
|
|
|
/*
|
|
* Duration calculations
|
|
* The rate variable passed is: 100kbs.
|
|
* To convert from bytes to bits we multiply size with 8,
|
|
* then the size is multiplied with 10 to make the
|
|
* real rate -> rate argument correction.
|
|
*/
|
|
static inline u16 get_duration(const unsigned int size, const u8 rate)
|
|
{
|
|
return ((size * 8 * 10) / rate);
|
|
}
|
|
|
|
static inline u16 get_duration_res(const unsigned int size, const u8 rate)
|
|
{
|
|
return ((size * 8 * 10) % rate);
|
|
}
|
|
|
|
/**
|
|
* rt2x00queue_get_queue - Convert mac80211 queue index to rt2x00 queue
|
|
* @rt2x00dev: Pointer to &struct rt2x00_dev.
|
|
* @queue: mac80211/rt2x00 queue index
|
|
* (see &enum ieee80211_tx_queue and &enum rt2x00_bcn_queue).
|
|
*/
|
|
struct data_queue *rt2x00queue_get_queue(struct rt2x00_dev *rt2x00dev,
|
|
const unsigned int queue);
|
|
|
|
/**
|
|
* rt2x00queue_get_entry - Get queue entry where the given index points to.
|
|
* @rt2x00dev: Pointer to &struct rt2x00_dev.
|
|
* @index: Index identifier for obtaining the correct index.
|
|
*/
|
|
struct queue_entry *rt2x00queue_get_entry(struct data_queue *queue,
|
|
enum queue_index index);
|
|
|
|
/**
|
|
* rt2x00queue_index_inc - Index incrementation function
|
|
* @queue: Queue (&struct data_queue) to perform the action on.
|
|
* @action: 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);
|
|
|
|
|
|
/*
|
|
* Interrupt context handlers.
|
|
*/
|
|
void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev);
|
|
void rt2x00lib_txdone(struct queue_entry *entry,
|
|
struct txdone_entry_desc *txdesc);
|
|
void rt2x00lib_rxdone(struct queue_entry *entry,
|
|
struct rxdone_entry_desc *rxdesc);
|
|
|
|
/*
|
|
* TX descriptor initializer
|
|
*/
|
|
void rt2x00lib_write_tx_desc(struct rt2x00_dev *rt2x00dev,
|
|
struct sk_buff *skb,
|
|
struct ieee80211_tx_control *control);
|
|
|
|
/*
|
|
* mac80211 handlers.
|
|
*/
|
|
int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb,
|
|
struct ieee80211_tx_control *control);
|
|
int rt2x00mac_start(struct ieee80211_hw *hw);
|
|
void rt2x00mac_stop(struct ieee80211_hw *hw);
|
|
int rt2x00mac_add_interface(struct ieee80211_hw *hw,
|
|
struct ieee80211_if_init_conf *conf);
|
|
void rt2x00mac_remove_interface(struct ieee80211_hw *hw,
|
|
struct ieee80211_if_init_conf *conf);
|
|
int rt2x00mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
|
|
int rt2x00mac_config_interface(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_if_conf *conf);
|
|
int rt2x00mac_get_stats(struct ieee80211_hw *hw,
|
|
struct ieee80211_low_level_stats *stats);
|
|
int rt2x00mac_get_tx_stats(struct ieee80211_hw *hw,
|
|
struct ieee80211_tx_queue_stats *stats);
|
|
void rt2x00mac_bss_info_changed(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_bss_conf *bss_conf,
|
|
u32 changes);
|
|
int rt2x00mac_conf_tx(struct ieee80211_hw *hw, int queue,
|
|
const struct ieee80211_tx_queue_params *params);
|
|
|
|
/*
|
|
* Driver allocation handlers.
|
|
*/
|
|
int rt2x00lib_probe_dev(struct rt2x00_dev *rt2x00dev);
|
|
void rt2x00lib_remove_dev(struct rt2x00_dev *rt2x00dev);
|
|
#ifdef CONFIG_PM
|
|
int rt2x00lib_suspend(struct rt2x00_dev *rt2x00dev, pm_message_t state);
|
|
int rt2x00lib_resume(struct rt2x00_dev *rt2x00dev);
|
|
#endif /* CONFIG_PM */
|
|
|
|
#endif /* RT2X00_H */
|