4951348109
Fix a bunch of spelling errors in the rt2x00 drivers Signed-off-by: Luis Correia <luis.f.correia@gmail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
996 lines
24 KiB
C
996 lines
24 KiB
C
/*
|
|
Copyright (C) 2004 - 2009 rt2x00 SourceForge Project
|
|
<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: rt2x00
|
|
Abstract: rt2x00 global information.
|
|
*/
|
|
|
|
#ifndef RT2X00_H
|
|
#define RT2X00_H
|
|
|
|
#include <linux/bitops.h>
|
|
#include <linux/skbuff.h>
|
|
#include <linux/workqueue.h>
|
|
#include <linux/firmware.h>
|
|
#include <linux/leds.h>
|
|
#include <linux/mutex.h>
|
|
#include <linux/etherdevice.h>
|
|
#include <linux/input-polldev.h>
|
|
|
|
#include <net/mac80211.h>
|
|
|
|
#include "rt2x00debug.h"
|
|
#include "rt2x00leds.h"
|
|
#include "rt2x00reg.h"
|
|
#include "rt2x00queue.h"
|
|
|
|
/*
|
|
* Module information.
|
|
*/
|
|
#define DRV_VERSION "2.3.0"
|
|
#define DRV_PROJECT "http://rt2x00.serialmonkey.com"
|
|
|
|
/*
|
|
* Debug definitions.
|
|
* Debug output has to be enabled during compile time.
|
|
*/
|
|
#define DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, __args...) \
|
|
printk(__kernlvl "%s -> %s: %s - " __msg, \
|
|
wiphy_name((__dev)->hw->wiphy), __func__, __lvl, ##__args)
|
|
|
|
#define DEBUG_PRINTK_PROBE(__kernlvl, __lvl, __msg, __args...) \
|
|
printk(__kernlvl "%s -> %s: %s - " __msg, \
|
|
KBUILD_MODNAME, __func__, __lvl, ##__args)
|
|
|
|
#ifdef CONFIG_RT2X00_DEBUG
|
|
#define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \
|
|
DEBUG_PRINTK_MSG(__dev, __kernlvl, __lvl, __msg, ##__args);
|
|
#else
|
|
#define DEBUG_PRINTK(__dev, __kernlvl, __lvl, __msg, __args...) \
|
|
do { } while (0)
|
|
#endif /* CONFIG_RT2X00_DEBUG */
|
|
|
|
/*
|
|
* Various debug levels.
|
|
* The debug levels PANIC and ERROR both indicate serious problems,
|
|
* for this reason they should never be ignored.
|
|
* The special ERROR_PROBE message is for messages that are generated
|
|
* when the rt2x00_dev is not yet initialized.
|
|
*/
|
|
#define PANIC(__dev, __msg, __args...) \
|
|
DEBUG_PRINTK_MSG(__dev, KERN_CRIT, "Panic", __msg, ##__args)
|
|
#define ERROR(__dev, __msg, __args...) \
|
|
DEBUG_PRINTK_MSG(__dev, KERN_ERR, "Error", __msg, ##__args)
|
|
#define ERROR_PROBE(__msg, __args...) \
|
|
DEBUG_PRINTK_PROBE(KERN_ERR, "Error", __msg, ##__args)
|
|
#define WARNING(__dev, __msg, __args...) \
|
|
DEBUG_PRINTK(__dev, KERN_WARNING, "Warning", __msg, ##__args)
|
|
#define NOTICE(__dev, __msg, __args...) \
|
|
DEBUG_PRINTK(__dev, KERN_NOTICE, "Notice", __msg, ##__args)
|
|
#define INFO(__dev, __msg, __args...) \
|
|
DEBUG_PRINTK(__dev, KERN_INFO, "Info", __msg, ##__args)
|
|
#define DEBUG(__dev, __msg, __args...) \
|
|
DEBUG_PRINTK(__dev, KERN_DEBUG, "Debug", __msg, ##__args)
|
|
#define EEPROM(__dev, __msg, __args...) \
|
|
DEBUG_PRINTK(__dev, KERN_DEBUG, "EEPROM recovery", __msg, ##__args)
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
#define GET_DURATION(__size, __rate) (((__size) * 8 * 10) / (__rate))
|
|
#define GET_DURATION_RES(__size, __rate)(((__size) * 8 * 10) % (__rate))
|
|
|
|
/*
|
|
* Determine the alignment requirement,
|
|
* to make sure the 802.11 payload is padded to a 4-byte boundrary
|
|
* we must determine the address of the payload and calculate the
|
|
* amount of bytes needed to move the data.
|
|
*/
|
|
#define ALIGN_SIZE(__skb, __header) \
|
|
( ((unsigned long)((__skb)->data + (__header))) & 3 )
|
|
|
|
/*
|
|
* Standard timing and size defines.
|
|
* These values should follow the ieee80211 specifications.
|
|
*/
|
|
#define ACK_SIZE 14
|
|
#define IEEE80211_HEADER 24
|
|
#define PLCP 48
|
|
#define BEACON 100
|
|
#define PREAMBLE 144
|
|
#define SHORT_PREAMBLE 72
|
|
#define SLOT_TIME 20
|
|
#define SHORT_SLOT_TIME 9
|
|
#define SIFS 10
|
|
#define PIFS ( SIFS + SLOT_TIME )
|
|
#define SHORT_PIFS ( SIFS + SHORT_SLOT_TIME )
|
|
#define DIFS ( PIFS + SLOT_TIME )
|
|
#define SHORT_DIFS ( SHORT_PIFS + SHORT_SLOT_TIME )
|
|
#define EIFS ( SIFS + DIFS + \
|
|
GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10) )
|
|
#define SHORT_EIFS ( SIFS + SHORT_DIFS + \
|
|
GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10) )
|
|
|
|
/*
|
|
* Chipset identification
|
|
* The chipset on the device is composed of a RT and RF chip.
|
|
* The chipset combination is important for determining device capabilities.
|
|
*/
|
|
struct rt2x00_chip {
|
|
u16 rt;
|
|
#define RT2460 0x0101
|
|
#define RT2560 0x0201
|
|
#define RT2570 0x1201
|
|
#define RT2561s 0x0301 /* Turbo */
|
|
#define RT2561 0x0302
|
|
#define RT2661 0x0401
|
|
#define RT2571 0x1300
|
|
#define RT2870 0x1600
|
|
|
|
u16 rf;
|
|
u32 rev;
|
|
};
|
|
|
|
/*
|
|
* RF register values that belong to a particular channel.
|
|
*/
|
|
struct rf_channel {
|
|
int channel;
|
|
u32 rf1;
|
|
u32 rf2;
|
|
u32 rf3;
|
|
u32 rf4;
|
|
};
|
|
|
|
/*
|
|
* Channel information structure
|
|
*/
|
|
struct channel_info {
|
|
unsigned int flags;
|
|
#define GEOGRAPHY_ALLOWED 0x00000001
|
|
|
|
short tx_power1;
|
|
short tx_power2;
|
|
};
|
|
|
|
/*
|
|
* Antenna setup values.
|
|
*/
|
|
struct antenna_setup {
|
|
enum antenna rx;
|
|
enum antenna tx;
|
|
};
|
|
|
|
/*
|
|
* Quality statistics about the currently active link.
|
|
*/
|
|
struct link_qual {
|
|
/*
|
|
* Statistics required for Link tuning by driver
|
|
* The rssi value is provided by rt2x00lib during the
|
|
* link_tuner() callback function.
|
|
* The false_cca field is filled during the link_stats()
|
|
* callback function and could be used during the
|
|
* link_tuner() callback function.
|
|
*/
|
|
int rssi;
|
|
int false_cca;
|
|
|
|
/*
|
|
* VGC levels
|
|
* Hardware driver will tune the VGC level during each call
|
|
* to the link_tuner() callback function. This vgc_level is
|
|
* is determined based on the link quality statistics like
|
|
* average RSSI and the false CCA count.
|
|
*
|
|
* In some cases the drivers need to differentiate between
|
|
* the currently "desired" VGC level and the level configured
|
|
* in the hardware. The latter is important to reduce the
|
|
* number of BBP register reads to reduce register access
|
|
* overhead. For this reason we store both values here.
|
|
*/
|
|
u8 vgc_level;
|
|
u8 vgc_level_reg;
|
|
|
|
/*
|
|
* Statistics required for Signal quality calculation.
|
|
* These fields might be changed during the link_stats()
|
|
* callback function.
|
|
*/
|
|
int rx_success;
|
|
int rx_failed;
|
|
int tx_success;
|
|
int tx_failed;
|
|
};
|
|
|
|
/*
|
|
* Antenna settings about the currently active link.
|
|
*/
|
|
struct link_ant {
|
|
/*
|
|
* Antenna flags
|
|
*/
|
|
unsigned int flags;
|
|
#define ANTENNA_RX_DIVERSITY 0x00000001
|
|
#define ANTENNA_TX_DIVERSITY 0x00000002
|
|
#define ANTENNA_MODE_SAMPLE 0x00000004
|
|
|
|
/*
|
|
* Currently active TX/RX antenna setup.
|
|
* When software diversity is used, this will indicate
|
|
* which antenna is actually used at this time.
|
|
*/
|
|
struct antenna_setup active;
|
|
|
|
/*
|
|
* RSSI information for the different antennas.
|
|
* These statistics are used to determine when
|
|
* to switch antenna when using software diversity.
|
|
*
|
|
* rssi[0] -> Antenna A RSSI
|
|
* rssi[1] -> Antenna B RSSI
|
|
*/
|
|
int rssi_history[2];
|
|
|
|
/*
|
|
* Current RSSI average of the currently active antenna.
|
|
* Similar to the avg_rssi in the link_qual structure
|
|
* this value is updated by using the walking average.
|
|
*/
|
|
int rssi_ant;
|
|
};
|
|
|
|
/*
|
|
* To optimize the quality of the link we need to store
|
|
* the quality of received frames and periodically
|
|
* optimize the link.
|
|
*/
|
|
struct link {
|
|
/*
|
|
* Link tuner counter
|
|
* The number of times the link has been tuned
|
|
* since the radio has been switched on.
|
|
*/
|
|
u32 count;
|
|
|
|
/*
|
|
* Quality measurement values.
|
|
*/
|
|
struct link_qual qual;
|
|
|
|
/*
|
|
* TX/RX antenna setup.
|
|
*/
|
|
struct link_ant ant;
|
|
|
|
/*
|
|
* Currently active average RSSI value
|
|
*/
|
|
int avg_rssi;
|
|
|
|
/*
|
|
* Currently precalculated percentages of successful
|
|
* TX and RX frames.
|
|
*/
|
|
int rx_percentage;
|
|
int tx_percentage;
|
|
|
|
/*
|
|
* Work structure for scheduling periodic link tuning.
|
|
*/
|
|
struct delayed_work work;
|
|
};
|
|
|
|
/*
|
|
* Interface structure
|
|
* Per interface configuration details, this structure
|
|
* is allocated as the private data for ieee80211_vif.
|
|
*/
|
|
struct rt2x00_intf {
|
|
/*
|
|
* All fields within the rt2x00_intf structure
|
|
* must be protected with a spinlock.
|
|
*/
|
|
spinlock_t lock;
|
|
|
|
/*
|
|
* MAC of the device.
|
|
*/
|
|
u8 mac[ETH_ALEN];
|
|
|
|
/*
|
|
* BBSID of the AP to associate with.
|
|
*/
|
|
u8 bssid[ETH_ALEN];
|
|
|
|
/*
|
|
* Entry in the beacon queue which belongs to
|
|
* this interface. Each interface has its own
|
|
* dedicated beacon entry.
|
|
*/
|
|
struct queue_entry *beacon;
|
|
|
|
/*
|
|
* Actions that needed rescheduling.
|
|
*/
|
|
unsigned int delayed_flags;
|
|
#define DELAYED_UPDATE_BEACON 0x00000001
|
|
#define DELAYED_CONFIG_ERP 0x00000002
|
|
#define DELAYED_LED_ASSOC 0x00000004
|
|
|
|
/*
|
|
* Software sequence counter, this is only required
|
|
* for hardware which doesn't support hardware
|
|
* sequence counting.
|
|
*/
|
|
spinlock_t seqlock;
|
|
u16 seqno;
|
|
};
|
|
|
|
static inline struct rt2x00_intf* vif_to_intf(struct ieee80211_vif *vif)
|
|
{
|
|
return (struct rt2x00_intf *)vif->drv_priv;
|
|
}
|
|
|
|
/**
|
|
* struct hw_mode_spec: Hardware specifications structure
|
|
*
|
|
* Details about the supported modes, rates and channels
|
|
* of a particular chipset. This is used by rt2x00lib
|
|
* to build the ieee80211_hw_mode array for mac80211.
|
|
*
|
|
* @supported_bands: Bitmask contained the supported bands (2.4GHz, 5.2GHz).
|
|
* @supported_rates: Rate types which are supported (CCK, OFDM).
|
|
* @num_channels: Number of supported channels. This is used as array size
|
|
* for @tx_power_a, @tx_power_bg and @channels.
|
|
* @channels: Device/chipset specific channel values (See &struct rf_channel).
|
|
* @channels_info: Additional information for channels (See &struct channel_info).
|
|
* @ht: Driver HT Capabilities (See &ieee80211_sta_ht_cap).
|
|
*/
|
|
struct hw_mode_spec {
|
|
unsigned int supported_bands;
|
|
#define SUPPORT_BAND_2GHZ 0x00000001
|
|
#define SUPPORT_BAND_5GHZ 0x00000002
|
|
|
|
unsigned int supported_rates;
|
|
#define SUPPORT_RATE_CCK 0x00000001
|
|
#define SUPPORT_RATE_OFDM 0x00000002
|
|
|
|
unsigned int num_channels;
|
|
const struct rf_channel *channels;
|
|
const struct channel_info *channels_info;
|
|
|
|
struct ieee80211_sta_ht_cap ht;
|
|
};
|
|
|
|
/*
|
|
* Configuration structure wrapper around the
|
|
* mac80211 configuration structure.
|
|
* When mac80211 configures the driver, rt2x00lib
|
|
* can precalculate values which are equal for all
|
|
* rt2x00 drivers. Those values can be stored in here.
|
|
*/
|
|
struct rt2x00lib_conf {
|
|
struct ieee80211_conf *conf;
|
|
|
|
struct rf_channel rf;
|
|
struct channel_info channel;
|
|
};
|
|
|
|
/*
|
|
* Configuration structure for erp settings.
|
|
*/
|
|
struct rt2x00lib_erp {
|
|
int short_preamble;
|
|
int cts_protection;
|
|
|
|
int ack_timeout;
|
|
int ack_consume_time;
|
|
|
|
u32 basic_rates;
|
|
|
|
int slot_time;
|
|
|
|
short sifs;
|
|
short pifs;
|
|
short difs;
|
|
short eifs;
|
|
|
|
u16 beacon_int;
|
|
};
|
|
|
|
/*
|
|
* Configuration structure for hardware encryption.
|
|
*/
|
|
struct rt2x00lib_crypto {
|
|
enum cipher cipher;
|
|
|
|
enum set_key_cmd cmd;
|
|
const u8 *address;
|
|
|
|
u32 bssidx;
|
|
u32 aid;
|
|
|
|
u8 key[16];
|
|
u8 tx_mic[8];
|
|
u8 rx_mic[8];
|
|
};
|
|
|
|
/*
|
|
* Configuration structure wrapper around the
|
|
* rt2x00 interface configuration handler.
|
|
*/
|
|
struct rt2x00intf_conf {
|
|
/*
|
|
* Interface type
|
|
*/
|
|
enum nl80211_iftype type;
|
|
|
|
/*
|
|
* TSF sync value, this is dependant on the operation type.
|
|
*/
|
|
enum tsf_sync sync;
|
|
|
|
/*
|
|
* 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
|
|
* the data to the device.
|
|
*/
|
|
__le32 mac[2];
|
|
__le32 bssid[2];
|
|
};
|
|
|
|
/*
|
|
* 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 (*check_firmware) (struct rt2x00_dev *rt2x00dev,
|
|
const u8 *data, const size_t len);
|
|
int (*load_firmware) (struct rt2x00_dev *rt2x00dev,
|
|
const u8 *data, const size_t len);
|
|
|
|
/*
|
|
* Device initialization/deinitialization handlers.
|
|
*/
|
|
int (*initialize) (struct rt2x00_dev *rt2x00dev);
|
|
void (*uninitialize) (struct rt2x00_dev *rt2x00dev);
|
|
|
|
/*
|
|
* queue initialization handlers
|
|
*/
|
|
bool (*get_entry_state) (struct queue_entry *entry);
|
|
void (*clear_entry) (struct queue_entry *entry);
|
|
|
|
/*
|
|
* 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,
|
|
struct link_qual *qual);
|
|
void (*link_tuner) (struct rt2x00_dev *rt2x00dev,
|
|
struct link_qual *qual, const u32 count);
|
|
|
|
/*
|
|
* TX control handlers
|
|
*/
|
|
void (*write_tx_desc) (struct rt2x00_dev *rt2x00dev,
|
|
struct sk_buff *skb,
|
|
struct txentry_desc *txdesc);
|
|
int (*write_tx_data) (struct queue_entry *entry);
|
|
void (*write_beacon) (struct queue_entry *entry);
|
|
int (*get_tx_data_len) (struct queue_entry *entry);
|
|
void (*kick_tx_queue) (struct rt2x00_dev *rt2x00dev,
|
|
const enum data_queue_qid queue);
|
|
void (*kill_tx_queue) (struct rt2x00_dev *rt2x00dev,
|
|
const enum data_queue_qid queue);
|
|
|
|
/*
|
|
* RX control handlers
|
|
*/
|
|
void (*fill_rxdone) (struct queue_entry *entry,
|
|
struct rxdone_entry_desc *rxdesc);
|
|
|
|
/*
|
|
* Configuration handlers.
|
|
*/
|
|
int (*config_shared_key) (struct rt2x00_dev *rt2x00dev,
|
|
struct rt2x00lib_crypto *crypto,
|
|
struct ieee80211_key_conf *key);
|
|
int (*config_pairwise_key) (struct rt2x00_dev *rt2x00dev,
|
|
struct rt2x00lib_crypto *crypto,
|
|
struct ieee80211_key_conf *key);
|
|
void (*config_filter) (struct rt2x00_dev *rt2x00dev,
|
|
const unsigned int filter_flags);
|
|
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 )
|
|
|
|
void (*config_erp) (struct rt2x00_dev *rt2x00dev,
|
|
struct rt2x00lib_erp *erp);
|
|
void (*config_ant) (struct rt2x00_dev *rt2x00dev,
|
|
struct antenna_setup *ant);
|
|
void (*config) (struct rt2x00_dev *rt2x00dev,
|
|
struct rt2x00lib_conf *libconf,
|
|
const unsigned int changed_flags);
|
|
};
|
|
|
|
/*
|
|
* 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 unsigned int tx_queues;
|
|
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_STATE_PRESENT,
|
|
DEVICE_STATE_REGISTERED_HW,
|
|
DEVICE_STATE_INITIALIZED,
|
|
DEVICE_STATE_STARTED,
|
|
DEVICE_STATE_ENABLED_RADIO,
|
|
|
|
/*
|
|
* Driver requirements
|
|
*/
|
|
DRIVER_REQUIRE_FIRMWARE,
|
|
DRIVER_REQUIRE_BEACON_GUARD,
|
|
DRIVER_REQUIRE_ATIM_QUEUE,
|
|
DRIVER_REQUIRE_SCHEDULED,
|
|
DRIVER_REQUIRE_DMA,
|
|
DRIVER_REQUIRE_COPY_IV,
|
|
DRIVER_REQUIRE_L2PAD,
|
|
|
|
/*
|
|
* Driver features
|
|
*/
|
|
CONFIG_SUPPORT_HW_BUTTON,
|
|
CONFIG_SUPPORT_HW_CRYPTO,
|
|
|
|
/*
|
|
* Driver configuration
|
|
*/
|
|
CONFIG_FRAME_TYPE,
|
|
CONFIG_RF_SEQUENCE,
|
|
CONFIG_EXTERNAL_LNA_A,
|
|
CONFIG_EXTERNAL_LNA_BG,
|
|
CONFIG_DOUBLE_ANTENNA,
|
|
CONFIG_DISABLE_LINK_TUNING,
|
|
CONFIG_CHANNEL_HT40,
|
|
};
|
|
|
|
/*
|
|
* 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}
|
|
* macros should be used for correct typecasting.
|
|
*/
|
|
struct device *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;
|
|
|
|
/*
|
|
* 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 */
|
|
|
|
/*
|
|
* LED structure for changing the LED status
|
|
* by mac8011 or the kernel.
|
|
*/
|
|
#ifdef CONFIG_RT2X00_LIB_LEDS
|
|
struct rt2x00_led led_radio;
|
|
struct rt2x00_led led_assoc;
|
|
struct rt2x00_led led_qual;
|
|
u16 led_mcu_reg;
|
|
#endif /* CONFIG_RT2X00_LIB_LEDS */
|
|
|
|
/*
|
|
* Device flags.
|
|
* In these flags the current status and some
|
|
* of the device capabilities are stored.
|
|
*/
|
|
unsigned long flags;
|
|
|
|
/*
|
|
* Device information, Bus IRQ and name (PCI, SoC)
|
|
*/
|
|
int irq;
|
|
const char *name;
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
struct antenna_setup default_ant;
|
|
|
|
/*
|
|
* Register pointers
|
|
* csr.base: CSR base register address. (PCI)
|
|
* csr.cache: CSR cache for usb_control_msg. (USB)
|
|
*/
|
|
union csr {
|
|
void __iomem *base;
|
|
void *cache;
|
|
} csr;
|
|
|
|
/*
|
|
* Mutex to protect register accesses.
|
|
* For PCI and USB devices it protects against concurrent indirect
|
|
* register access (BBP, RF, MCU) since accessing those
|
|
* registers require multiple calls to the CSR registers.
|
|
* For USB devices it also protects the csr_cache since that
|
|
* field is used for normal CSR access and it cannot support
|
|
* multiple callers simultaneously.
|
|
*/
|
|
struct mutex csr_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;
|
|
|
|
/*
|
|
* LNA gain
|
|
*/
|
|
short lna_gain;
|
|
|
|
/*
|
|
* Current TX power value.
|
|
*/
|
|
u16 tx_power;
|
|
|
|
/*
|
|
* Current retry values.
|
|
*/
|
|
u8 short_retry;
|
|
u8 long_retry;
|
|
|
|
/*
|
|
* Rssi <-> Dbm offset
|
|
*/
|
|
u8 rssi_offset;
|
|
|
|
/*
|
|
* Frequency offset (for rt61pci & rt73usb).
|
|
*/
|
|
u8 freq_offset;
|
|
|
|
/*
|
|
* Calibration information (for rt2800usb & rt2800pci).
|
|
* [0] -> BW20
|
|
* [1] -> BW40
|
|
*/
|
|
u8 calibration[2];
|
|
|
|
/*
|
|
* Beacon interval.
|
|
*/
|
|
u16 beacon_int;
|
|
|
|
/*
|
|
* 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.
|
|
* NOTE: intf_work will use ieee80211_iterate_active_interfaces()
|
|
* which means it cannot be placed on the hw->workqueue
|
|
* due to RTNL locking requirements.
|
|
*/
|
|
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.
|
|
*/
|
|
unsigned 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 void rt2x00_set_chip_rt(struct rt2x00_dev *rt2x00dev,
|
|
const u16 rt)
|
|
{
|
|
rt2x00dev->chip.rt = rt;
|
|
}
|
|
|
|
static inline void rt2x00_set_chip_rf(struct rt2x00_dev *rt2x00dev,
|
|
const u16 rf, const u32 rev)
|
|
{
|
|
rt2x00_set_chip(rt2x00dev, rt2x00dev->chip.rt, rf, 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 u32 rt2x00_rev(const struct rt2x00_chip *chipset)
|
|
{
|
|
return chipset->rev;
|
|
}
|
|
|
|
static inline bool rt2x00_check_rev(const struct rt2x00_chip *chipset,
|
|
const u32 mask, const u32 rev)
|
|
{
|
|
return ((chipset->rev & mask) == rev);
|
|
}
|
|
|
|
/**
|
|
* rt2x00queue_map_txskb - Map a skb into DMA for TX purposes.
|
|
* @rt2x00dev: Pointer to &struct rt2x00_dev.
|
|
* @skb: The skb to map.
|
|
*/
|
|
void rt2x00queue_map_txskb(struct rt2x00_dev *rt2x00dev, struct sk_buff *skb);
|
|
|
|
/**
|
|
* rt2x00queue_get_queue - Convert queue index to queue pointer
|
|
* @rt2x00dev: Pointer to &struct rt2x00_dev.
|
|
* @queue: rt2x00 queue index (see &enum data_queue_qid).
|
|
*/
|
|
struct data_queue *rt2x00queue_get_queue(struct rt2x00_dev *rt2x00dev,
|
|
const enum data_queue_qid queue);
|
|
|
|
/**
|
|
* rt2x00queue_get_entry - Get queue entry where the given index points to.
|
|
* @queue: Pointer to &struct data_queue from where we obtain the entry.
|
|
* @index: Index identifier for obtaining the correct index.
|
|
*/
|
|
struct queue_entry *rt2x00queue_get_entry(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 rt2x00_dev *rt2x00dev,
|
|
struct queue_entry *entry);
|
|
|
|
/*
|
|
* mac80211 handlers.
|
|
*/
|
|
int rt2x00mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb);
|
|
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, u32 changed);
|
|
void rt2x00mac_configure_filter(struct ieee80211_hw *hw,
|
|
unsigned int changed_flags,
|
|
unsigned int *total_flags,
|
|
int mc_count, struct dev_addr_list *mc_list);
|
|
int rt2x00mac_set_tim(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
|
|
bool set);
|
|
#ifdef CONFIG_RT2X00_LIB_CRYPTO
|
|
int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
|
|
struct ieee80211_vif *vif, struct ieee80211_sta *sta,
|
|
struct ieee80211_key_conf *key);
|
|
#else
|
|
#define rt2x00mac_set_key NULL
|
|
#endif /* CONFIG_RT2X00_LIB_CRYPTO */
|
|
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, u16 queue,
|
|
const struct ieee80211_tx_queue_params *params);
|
|
void rt2x00mac_rfkill_poll(struct ieee80211_hw *hw);
|
|
|
|
/*
|
|
* 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 */
|