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linux/drivers/net/wireless/ath/ath5k/ath5k.h
Pavel Roskin 931be260ed ath5k: clean up base.h and its use 
Remove unnecessary includes from base.h.  Add includes to other files as
necessary.  Don't include base.h unless needed.

Move declarations for functions in base.c from ath5k.h to base.h.

Use a better named define to protect base.h against double inclusion.

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2011-08-08 16:04:14 -04:00

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/*
* Copyright (c) 2004-2007 Reyk Floeter <reyk@openbsd.org>
* Copyright (c) 2006-2007 Nick Kossifidis <mickflemm@gmail.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _ATH5K_H
#define _ATH5K_H
/* TODO: Clean up channel debugging (doesn't work anyway) and start
* working on reg. control code using all available eeprom information
* (rev. engineering needed) */
#define CHAN_DEBUG 0
#include <linux/io.h>
#include <linux/interrupt.h>
#include <linux/types.h>
#include <linux/average.h>
#include <linux/leds.h>
#include <net/mac80211.h>
/* RX/TX descriptor hw structs
* TODO: Driver part should only see sw structs */
#include "desc.h"
/* EEPROM structs/offsets
* TODO: Make a more generic struct (eg. add more stuff to ath5k_capabilities)
* and clean up common bits, then introduce set/get functions in eeprom.c */
#include "eeprom.h"
#include "debug.h"
#include "../ath.h"
#include "ani.h"
/* PCI IDs */
#define PCI_DEVICE_ID_ATHEROS_AR5210 0x0007 /* AR5210 */
#define PCI_DEVICE_ID_ATHEROS_AR5311 0x0011 /* AR5311 */
#define PCI_DEVICE_ID_ATHEROS_AR5211 0x0012 /* AR5211 */
#define PCI_DEVICE_ID_ATHEROS_AR5212 0x0013 /* AR5212 */
#define PCI_DEVICE_ID_3COM_3CRDAG675 0x0013 /* 3CRDAG675 (Atheros AR5212) */
#define PCI_DEVICE_ID_3COM_2_3CRPAG175 0x0013 /* 3CRPAG175 (Atheros AR5212) */
#define PCI_DEVICE_ID_ATHEROS_AR5210_AP 0x0207 /* AR5210 (Early) */
#define PCI_DEVICE_ID_ATHEROS_AR5212_IBM 0x1014 /* AR5212 (IBM MiniPCI) */
#define PCI_DEVICE_ID_ATHEROS_AR5210_DEFAULT 0x1107 /* AR5210 (no eeprom) */
#define PCI_DEVICE_ID_ATHEROS_AR5212_DEFAULT 0x1113 /* AR5212 (no eeprom) */
#define PCI_DEVICE_ID_ATHEROS_AR5211_DEFAULT 0x1112 /* AR5211 (no eeprom) */
#define PCI_DEVICE_ID_ATHEROS_AR5212_FPGA 0xf013 /* AR5212 (emulation board) */
#define PCI_DEVICE_ID_ATHEROS_AR5211_LEGACY 0xff12 /* AR5211 (emulation board) */
#define PCI_DEVICE_ID_ATHEROS_AR5211_FPGA11B 0xf11b /* AR5211 (emulation board) */
#define PCI_DEVICE_ID_ATHEROS_AR5312_REV2 0x0052 /* AR5312 WMAC (AP31) */
#define PCI_DEVICE_ID_ATHEROS_AR5312_REV7 0x0057 /* AR5312 WMAC (AP30-040) */
#define PCI_DEVICE_ID_ATHEROS_AR5312_REV8 0x0058 /* AR5312 WMAC (AP43-030) */
#define PCI_DEVICE_ID_ATHEROS_AR5212_0014 0x0014 /* AR5212 compatible */
#define PCI_DEVICE_ID_ATHEROS_AR5212_0015 0x0015 /* AR5212 compatible */
#define PCI_DEVICE_ID_ATHEROS_AR5212_0016 0x0016 /* AR5212 compatible */
#define PCI_DEVICE_ID_ATHEROS_AR5212_0017 0x0017 /* AR5212 compatible */
#define PCI_DEVICE_ID_ATHEROS_AR5212_0018 0x0018 /* AR5212 compatible */
#define PCI_DEVICE_ID_ATHEROS_AR5212_0019 0x0019 /* AR5212 compatible */
#define PCI_DEVICE_ID_ATHEROS_AR2413 0x001a /* AR2413 (Griffin-lite) */
#define PCI_DEVICE_ID_ATHEROS_AR5413 0x001b /* AR5413 (Eagle) */
#define PCI_DEVICE_ID_ATHEROS_AR5424 0x001c /* AR5424 (Condor PCI-E) */
#define PCI_DEVICE_ID_ATHEROS_AR5416 0x0023 /* AR5416 */
#define PCI_DEVICE_ID_ATHEROS_AR5418 0x0024 /* AR5418 */
/****************************\
GENERIC DRIVER DEFINITIONS
\****************************/
#define ATH5K_PRINTF(fmt, ...) \
printk(KERN_WARNING "%s: " fmt, __func__, ##__VA_ARGS__)
#define ATH5K_PRINTK(_sc, _level, _fmt, ...) \
printk(_level "ath5k %s: " _fmt, \
((_sc) && (_sc)->hw) ? wiphy_name((_sc)->hw->wiphy) : "", \
##__VA_ARGS__)
#define ATH5K_PRINTK_LIMIT(_sc, _level, _fmt, ...) do { \
if (net_ratelimit()) \
ATH5K_PRINTK(_sc, _level, _fmt, ##__VA_ARGS__); \
} while (0)
#define ATH5K_INFO(_sc, _fmt, ...) \
ATH5K_PRINTK(_sc, KERN_INFO, _fmt, ##__VA_ARGS__)
#define ATH5K_WARN(_sc, _fmt, ...) \
ATH5K_PRINTK_LIMIT(_sc, KERN_WARNING, _fmt, ##__VA_ARGS__)
#define ATH5K_ERR(_sc, _fmt, ...) \
ATH5K_PRINTK_LIMIT(_sc, KERN_ERR, _fmt, ##__VA_ARGS__)
/*
* AR5K REGISTER ACCESS
*/
/* Some macros to read/write fields */
/* First shift, then mask */
#define AR5K_REG_SM(_val, _flags) \
(((_val) << _flags##_S) & (_flags))
/* First mask, then shift */
#define AR5K_REG_MS(_val, _flags) \
(((_val) & (_flags)) >> _flags##_S)
/* Some registers can hold multiple values of interest. For this
* reason when we want to write to these registers we must first
* retrieve the values which we do not want to clear (lets call this
* old_data) and then set the register with this and our new_value:
* ( old_data | new_value) */
#define AR5K_REG_WRITE_BITS(ah, _reg, _flags, _val) \
ath5k_hw_reg_write(ah, (ath5k_hw_reg_read(ah, _reg) & ~(_flags)) | \
(((_val) << _flags##_S) & (_flags)), _reg)
#define AR5K_REG_MASKED_BITS(ah, _reg, _flags, _mask) \
ath5k_hw_reg_write(ah, (ath5k_hw_reg_read(ah, _reg) & \
(_mask)) | (_flags), _reg)
#define AR5K_REG_ENABLE_BITS(ah, _reg, _flags) \
ath5k_hw_reg_write(ah, ath5k_hw_reg_read(ah, _reg) | (_flags), _reg)
#define AR5K_REG_DISABLE_BITS(ah, _reg, _flags) \
ath5k_hw_reg_write(ah, ath5k_hw_reg_read(ah, _reg) & ~(_flags), _reg)
/* Access QCU registers per queue */
#define AR5K_REG_READ_Q(ah, _reg, _queue) \
(ath5k_hw_reg_read(ah, _reg) & (1 << _queue)) \
#define AR5K_REG_WRITE_Q(ah, _reg, _queue) \
ath5k_hw_reg_write(ah, (1 << _queue), _reg)
#define AR5K_Q_ENABLE_BITS(_reg, _queue) do { \
_reg |= 1 << _queue; \
} while (0)
#define AR5K_Q_DISABLE_BITS(_reg, _queue) do { \
_reg &= ~(1 << _queue); \
} while (0)
/* Used while writing initvals */
#define AR5K_REG_WAIT(_i) do { \
if (_i % 64) \
udelay(1); \
} while (0)
/*
* Some tunable values (these should be changeable by the user)
* TODO: Make use of them and add more options OR use debug/configfs
*/
#define AR5K_TUNE_DMA_BEACON_RESP 2
#define AR5K_TUNE_SW_BEACON_RESP 10
#define AR5K_TUNE_ADDITIONAL_SWBA_BACKOFF 0
#define AR5K_TUNE_MIN_TX_FIFO_THRES 1
#define AR5K_TUNE_MAX_TX_FIFO_THRES ((IEEE80211_MAX_FRAME_LEN / 64) + 1)
#define AR5K_TUNE_REGISTER_TIMEOUT 20000
/* Register for RSSI threshold has a mask of 0xff, so 255 seems to
* be the max value. */
#define AR5K_TUNE_RSSI_THRES 129
/* This must be set when setting the RSSI threshold otherwise it can
* prevent a reset. If AR5K_RSSI_THR is read after writing to it
* the BMISS_THRES will be seen as 0, seems hardware doesn't keep
* track of it. Max value depends on hardware. For AR5210 this is just 7.
* For AR5211+ this seems to be up to 255. */
#define AR5K_TUNE_BMISS_THRES 7
#define AR5K_TUNE_REGISTER_DWELL_TIME 20000
#define AR5K_TUNE_BEACON_INTERVAL 100
#define AR5K_TUNE_AIFS 2
#define AR5K_TUNE_AIFS_11B 2
#define AR5K_TUNE_AIFS_XR 0
#define AR5K_TUNE_CWMIN 15
#define AR5K_TUNE_CWMIN_11B 31
#define AR5K_TUNE_CWMIN_XR 3
#define AR5K_TUNE_CWMAX 1023
#define AR5K_TUNE_CWMAX_11B 1023
#define AR5K_TUNE_CWMAX_XR 7
#define AR5K_TUNE_NOISE_FLOOR -72
#define AR5K_TUNE_CCA_MAX_GOOD_VALUE -95
#define AR5K_TUNE_MAX_TXPOWER 63
#define AR5K_TUNE_DEFAULT_TXPOWER 25
#define AR5K_TUNE_TPC_TXPOWER false
#define ATH5K_TUNE_CALIBRATION_INTERVAL_FULL 10000 /* 10 sec */
#define ATH5K_TUNE_CALIBRATION_INTERVAL_ANI 1000 /* 1 sec */
#define ATH5K_TUNE_CALIBRATION_INTERVAL_NF 60000 /* 60 sec */
#define ATH5K_TX_COMPLETE_POLL_INT 3000 /* 3 sec */
#define AR5K_INIT_CARR_SENSE_EN 1
/*Swap RX/TX Descriptor for big endian archs*/
#if defined(__BIG_ENDIAN)
#define AR5K_INIT_CFG ( \
AR5K_CFG_SWTD | AR5K_CFG_SWRD \
)
#else
#define AR5K_INIT_CFG 0x00000000
#endif
/* Initial values */
#define AR5K_INIT_CYCRSSI_THR1 2
/* Tx retry limit defaults from standard */
#define AR5K_INIT_RETRY_SHORT 7
#define AR5K_INIT_RETRY_LONG 4
/* Slot time */
#define AR5K_INIT_SLOT_TIME_TURBO 6
#define AR5K_INIT_SLOT_TIME_DEFAULT 9
#define AR5K_INIT_SLOT_TIME_HALF_RATE 13
#define AR5K_INIT_SLOT_TIME_QUARTER_RATE 21
#define AR5K_INIT_SLOT_TIME_B 20
#define AR5K_SLOT_TIME_MAX 0xffff
/* SIFS */
#define AR5K_INIT_SIFS_TURBO 6
#define AR5K_INIT_SIFS_DEFAULT_BG 10
#define AR5K_INIT_SIFS_DEFAULT_A 16
#define AR5K_INIT_SIFS_HALF_RATE 32
#define AR5K_INIT_SIFS_QUARTER_RATE 64
/* Used to calculate tx time for non 5/10/40MHz
* operation */
/* It's preamble time + signal time (16 + 4) */
#define AR5K_INIT_OFDM_PREAMPLE_TIME 20
/* Preamble time for 40MHz (turbo) operation (min ?) */
#define AR5K_INIT_OFDM_PREAMBLE_TIME_MIN 14
#define AR5K_INIT_OFDM_SYMBOL_TIME 4
#define AR5K_INIT_OFDM_PLCP_BITS 22
/* Rx latency for 5 and 10MHz operation (max ?) */
#define AR5K_INIT_RX_LAT_MAX 63
/* Tx latencies from initvals (5212 only but no problem
* because we only tweak them on 5212) */
#define AR5K_INIT_TX_LAT_A 54
#define AR5K_INIT_TX_LAT_BG 384
/* Tx latency for 40MHz (turbo) operation (min ?) */
#define AR5K_INIT_TX_LAT_MIN 32
/* Default Tx/Rx latencies (same for 5211)*/
#define AR5K_INIT_TX_LATENCY_5210 54
#define AR5K_INIT_RX_LATENCY_5210 29
/* Tx frame to Tx data start delay */
#define AR5K_INIT_TXF2TXD_START_DEFAULT 14
#define AR5K_INIT_TXF2TXD_START_DELAY_10MHZ 12
#define AR5K_INIT_TXF2TXD_START_DELAY_5MHZ 13
/* We need to increase PHY switch and agc settling time
* on turbo mode */
#define AR5K_SWITCH_SETTLING 5760
#define AR5K_SWITCH_SETTLING_TURBO 7168
#define AR5K_AGC_SETTLING 28
/* 38 on 5210 but shouldn't matter */
#define AR5K_AGC_SETTLING_TURBO 37
/* GENERIC CHIPSET DEFINITIONS */
/* MAC Chips */
enum ath5k_version {
AR5K_AR5210 = 0,
AR5K_AR5211 = 1,
AR5K_AR5212 = 2,
};
/* PHY Chips */
enum ath5k_radio {
AR5K_RF5110 = 0,
AR5K_RF5111 = 1,
AR5K_RF5112 = 2,
AR5K_RF2413 = 3,
AR5K_RF5413 = 4,
AR5K_RF2316 = 5,
AR5K_RF2317 = 6,
AR5K_RF2425 = 7,
};
/*
* Common silicon revision/version values
*/
#define AR5K_SREV_UNKNOWN 0xffff
#define AR5K_SREV_AR5210 0x00 /* Crete */
#define AR5K_SREV_AR5311 0x10 /* Maui 1 */
#define AR5K_SREV_AR5311A 0x20 /* Maui 2 */
#define AR5K_SREV_AR5311B 0x30 /* Spirit */
#define AR5K_SREV_AR5211 0x40 /* Oahu */
#define AR5K_SREV_AR5212 0x50 /* Venice */
#define AR5K_SREV_AR5312_R2 0x52 /* AP31 */
#define AR5K_SREV_AR5212_V4 0x54 /* ??? */
#define AR5K_SREV_AR5213 0x55 /* ??? */
#define AR5K_SREV_AR5312_R7 0x57 /* AP30 */
#define AR5K_SREV_AR2313_R8 0x58 /* AP43 */
#define AR5K_SREV_AR5213A 0x59 /* Hainan */
#define AR5K_SREV_AR2413 0x78 /* Griffin lite */
#define AR5K_SREV_AR2414 0x70 /* Griffin */
#define AR5K_SREV_AR2315_R6 0x86 /* AP51-Light */
#define AR5K_SREV_AR2315_R7 0x87 /* AP51-Full */
#define AR5K_SREV_AR5424 0x90 /* Condor */
#define AR5K_SREV_AR2317_R1 0x90 /* AP61-Light */
#define AR5K_SREV_AR2317_R2 0x91 /* AP61-Full */
#define AR5K_SREV_AR5413 0xa4 /* Eagle lite */
#define AR5K_SREV_AR5414 0xa0 /* Eagle */
#define AR5K_SREV_AR2415 0xb0 /* Talon */
#define AR5K_SREV_AR5416 0xc0 /* PCI-E */
#define AR5K_SREV_AR5418 0xca /* PCI-E */
#define AR5K_SREV_AR2425 0xe0 /* Swan */
#define AR5K_SREV_AR2417 0xf0 /* Nala */
#define AR5K_SREV_RAD_5110 0x00
#define AR5K_SREV_RAD_5111 0x10
#define AR5K_SREV_RAD_5111A 0x15
#define AR5K_SREV_RAD_2111 0x20
#define AR5K_SREV_RAD_5112 0x30
#define AR5K_SREV_RAD_5112A 0x35
#define AR5K_SREV_RAD_5112B 0x36
#define AR5K_SREV_RAD_2112 0x40
#define AR5K_SREV_RAD_2112A 0x45
#define AR5K_SREV_RAD_2112B 0x46
#define AR5K_SREV_RAD_2413 0x50
#define AR5K_SREV_RAD_5413 0x60
#define AR5K_SREV_RAD_2316 0x70 /* Cobra SoC */
#define AR5K_SREV_RAD_2317 0x80
#define AR5K_SREV_RAD_5424 0xa0 /* Mostly same as 5413 */
#define AR5K_SREV_RAD_2425 0xa2
#define AR5K_SREV_RAD_5133 0xc0
#define AR5K_SREV_PHY_5211 0x30
#define AR5K_SREV_PHY_5212 0x41
#define AR5K_SREV_PHY_5212A 0x42
#define AR5K_SREV_PHY_5212B 0x43
#define AR5K_SREV_PHY_2413 0x45
#define AR5K_SREV_PHY_5413 0x61
#define AR5K_SREV_PHY_2425 0x70
/* TODO add support to mac80211 for vendor-specific rates and modes */
/*
* Some of this information is based on Documentation from:
*
* http://madwifi-project.org/wiki/ChipsetFeatures/SuperAG
*
* Modulation for Atheros' eXtended Range - range enhancing extension that is
* supposed to double the distance an Atheros client device can keep a
* connection with an Atheros access point. This is achieved by increasing
* the receiver sensitivity up to, -105dBm, which is about 20dB above what
* the 802.11 specifications demand. In addition, new (proprietary) data rates
* are introduced: 3, 2, 1, 0.5 and 0.25 MBit/s.
*
* Please note that can you either use XR or TURBO but you cannot use both,
* they are exclusive.
*
*/
#define MODULATION_XR 0x00000200
/*
* Modulation for Atheros' Turbo G and Turbo A, its supposed to provide a
* throughput transmission speed up to 40Mbit/s-60Mbit/s at a 108Mbit/s
* signaling rate achieved through the bonding of two 54Mbit/s 802.11g
* channels. To use this feature your Access Point must also support it.
* There is also a distinction between "static" and "dynamic" turbo modes:
*
* - Static: is the dumb version: devices set to this mode stick to it until
* the mode is turned off.
* - Dynamic: is the intelligent version, the network decides itself if it
* is ok to use turbo. As soon as traffic is detected on adjacent channels
* (which would get used in turbo mode), or when a non-turbo station joins
* the network, turbo mode won't be used until the situation changes again.
* Dynamic mode is achieved by Atheros' Adaptive Radio (AR) feature which
* monitors the used radio band in order to decide whether turbo mode may
* be used or not.
*
* This article claims Super G sticks to bonding of channels 5 and 6 for
* USA:
*
* http://www.pcworld.com/article/id,113428-page,1/article.html
*
* The channel bonding seems to be driver specific though. In addition to
* deciding what channels will be used, these "Turbo" modes are accomplished
* by also enabling the following features:
*
* - Bursting: allows multiple frames to be sent at once, rather than pausing
* after each frame. Bursting is a standards-compliant feature that can be
* used with any Access Point.
* - Fast frames: increases the amount of information that can be sent per
* frame, also resulting in a reduction of transmission overhead. It is a
* proprietary feature that needs to be supported by the Access Point.
* - Compression: data frames are compressed in real time using a Lempel Ziv
* algorithm. This is done transparently. Once this feature is enabled,
* compression and decompression takes place inside the chipset, without
* putting additional load on the host CPU.
*
*/
#define MODULATION_TURBO 0x00000080
enum ath5k_driver_mode {
AR5K_MODE_11A = 0,
AR5K_MODE_11B = 1,
AR5K_MODE_11G = 2,
AR5K_MODE_MAX = 3
};
enum ath5k_ant_mode {
AR5K_ANTMODE_DEFAULT = 0, /* default antenna setup */
AR5K_ANTMODE_FIXED_A = 1, /* only antenna A is present */
AR5K_ANTMODE_FIXED_B = 2, /* only antenna B is present */
AR5K_ANTMODE_SINGLE_AP = 3, /* sta locked on a single ap */
AR5K_ANTMODE_SECTOR_AP = 4, /* AP with tx antenna set on tx desc */
AR5K_ANTMODE_SECTOR_STA = 5, /* STA with tx antenna set on tx desc */
AR5K_ANTMODE_DEBUG = 6, /* Debug mode -A -> Rx, B-> Tx- */
AR5K_ANTMODE_MAX,
};
enum ath5k_bw_mode {
AR5K_BWMODE_DEFAULT = 0, /* 20MHz, default operation */
AR5K_BWMODE_5MHZ = 1, /* Quarter rate */
AR5K_BWMODE_10MHZ = 2, /* Half rate */
AR5K_BWMODE_40MHZ = 3 /* Turbo */
};
/****************\
TX DEFINITIONS
\****************/
/*
* TX Status descriptor
*/
struct ath5k_tx_status {
u16 ts_seqnum;
u16 ts_tstamp;
u8 ts_status;
u8 ts_final_idx;
u8 ts_final_retry;
s8 ts_rssi;
u8 ts_shortretry;
u8 ts_virtcol;
u8 ts_antenna;
};
#define AR5K_TXSTAT_ALTRATE 0x80
#define AR5K_TXERR_XRETRY 0x01
#define AR5K_TXERR_FILT 0x02
#define AR5K_TXERR_FIFO 0x04
/**
* enum ath5k_tx_queue - Queue types used to classify tx queues.
* @AR5K_TX_QUEUE_INACTIVE: q is unused -- see ath5k_hw_release_tx_queue
* @AR5K_TX_QUEUE_DATA: A normal data queue
* @AR5K_TX_QUEUE_XR_DATA: An XR-data queue
* @AR5K_TX_QUEUE_BEACON: The beacon queue
* @AR5K_TX_QUEUE_CAB: The after-beacon queue
* @AR5K_TX_QUEUE_UAPSD: Unscheduled Automatic Power Save Delivery queue
*/
enum ath5k_tx_queue {
AR5K_TX_QUEUE_INACTIVE = 0,
AR5K_TX_QUEUE_DATA,
AR5K_TX_QUEUE_XR_DATA,
AR5K_TX_QUEUE_BEACON,
AR5K_TX_QUEUE_CAB,
AR5K_TX_QUEUE_UAPSD,
};
#define AR5K_NUM_TX_QUEUES 10
#define AR5K_NUM_TX_QUEUES_NOQCU 2
/*
* Queue syb-types to classify normal data queues.
* These are the 4 Access Categories as defined in
* WME spec. 0 is the lowest priority and 4 is the
* highest. Normal data that hasn't been classified
* goes to the Best Effort AC.
*/
enum ath5k_tx_queue_subtype {
AR5K_WME_AC_BK = 0, /*Background traffic*/
AR5K_WME_AC_BE, /*Best-effort (normal) traffic*/
AR5K_WME_AC_VI, /*Video traffic*/
AR5K_WME_AC_VO, /*Voice traffic*/
};
/*
* Queue ID numbers as returned by the hw functions, each number
* represents a hw queue. If hw does not support hw queues
* (eg 5210) all data goes in one queue. These match
* d80211 definitions (net80211/MadWiFi don't use them).
*/
enum ath5k_tx_queue_id {
AR5K_TX_QUEUE_ID_NOQCU_DATA = 0,
AR5K_TX_QUEUE_ID_NOQCU_BEACON = 1,
AR5K_TX_QUEUE_ID_DATA_MIN = 0, /*IEEE80211_TX_QUEUE_DATA0*/
AR5K_TX_QUEUE_ID_DATA_MAX = 3, /*IEEE80211_TX_QUEUE_DATA3*/
AR5K_TX_QUEUE_ID_DATA_SVP = 5, /*IEEE80211_TX_QUEUE_SVP - Spectralink Voice Protocol*/
AR5K_TX_QUEUE_ID_CAB = 6, /*IEEE80211_TX_QUEUE_AFTER_BEACON*/
AR5K_TX_QUEUE_ID_BEACON = 7, /*IEEE80211_TX_QUEUE_BEACON*/
AR5K_TX_QUEUE_ID_UAPSD = 8,
AR5K_TX_QUEUE_ID_XR_DATA = 9,
};
/*
* Flags to set hw queue's parameters...
*/
#define AR5K_TXQ_FLAG_TXOKINT_ENABLE 0x0001 /* Enable TXOK interrupt */
#define AR5K_TXQ_FLAG_TXERRINT_ENABLE 0x0002 /* Enable TXERR interrupt */
#define AR5K_TXQ_FLAG_TXEOLINT_ENABLE 0x0004 /* Enable TXEOL interrupt -not used- */
#define AR5K_TXQ_FLAG_TXDESCINT_ENABLE 0x0008 /* Enable TXDESC interrupt -not used- */
#define AR5K_TXQ_FLAG_TXURNINT_ENABLE 0x0010 /* Enable TXURN interrupt */
#define AR5K_TXQ_FLAG_CBRORNINT_ENABLE 0x0020 /* Enable CBRORN interrupt */
#define AR5K_TXQ_FLAG_CBRURNINT_ENABLE 0x0040 /* Enable CBRURN interrupt */
#define AR5K_TXQ_FLAG_QTRIGINT_ENABLE 0x0080 /* Enable QTRIG interrupt */
#define AR5K_TXQ_FLAG_TXNOFRMINT_ENABLE 0x0100 /* Enable TXNOFRM interrupt */
#define AR5K_TXQ_FLAG_BACKOFF_DISABLE 0x0200 /* Disable random post-backoff */
#define AR5K_TXQ_FLAG_RDYTIME_EXP_POLICY_ENABLE 0x0300 /* Enable ready time expiry policy (?)*/
#define AR5K_TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE 0x0800 /* Enable backoff while bursting */
#define AR5K_TXQ_FLAG_POST_FR_BKOFF_DIS 0x1000 /* Disable backoff while bursting */
#define AR5K_TXQ_FLAG_COMPRESSION_ENABLE 0x2000 /* Enable hw compression -not implemented-*/
/*
* Data transmit queue state. One of these exists for each
* hardware transmit queue. Packets sent to us from above
* are assigned to queues based on their priority. Not all
* devices support a complete set of hardware transmit queues.
* For those devices the array sc_ac2q will map multiple
* priorities to fewer hardware queues (typically all to one
* hardware queue).
*/
struct ath5k_txq {
unsigned int qnum; /* hardware q number */
u32 *link; /* link ptr in last TX desc */
struct list_head q; /* transmit queue */
spinlock_t lock; /* lock on q and link */
bool setup;
int txq_len; /* number of queued buffers */
int txq_max; /* max allowed num of queued buffers */
bool txq_poll_mark;
unsigned int txq_stuck; /* informational counter */
};
/*
* A struct to hold tx queue's parameters
*/
struct ath5k_txq_info {
enum ath5k_tx_queue tqi_type;
enum ath5k_tx_queue_subtype tqi_subtype;
u16 tqi_flags; /* Tx queue flags (see above) */
u8 tqi_aifs; /* Arbitrated Interframe Space */
u16 tqi_cw_min; /* Minimum Contention Window */
u16 tqi_cw_max; /* Maximum Contention Window */
u32 tqi_cbr_period; /* Constant bit rate period */
u32 tqi_cbr_overflow_limit;
u32 tqi_burst_time;
u32 tqi_ready_time; /* Time queue waits after an event */
};
/*
* Transmit packet types.
* used on tx control descriptor
*/
enum ath5k_pkt_type {
AR5K_PKT_TYPE_NORMAL = 0,
AR5K_PKT_TYPE_ATIM = 1,
AR5K_PKT_TYPE_PSPOLL = 2,
AR5K_PKT_TYPE_BEACON = 3,
AR5K_PKT_TYPE_PROBE_RESP = 4,
AR5K_PKT_TYPE_PIFS = 5,
};
/*
* TX power and TPC settings
*/
#define AR5K_TXPOWER_OFDM(_r, _v) ( \
((0 & 1) << ((_v) + 6)) | \
(((ah->ah_txpower.txp_rates_power_table[(_r)]) & 0x3f) << (_v)) \
)
#define AR5K_TXPOWER_CCK(_r, _v) ( \
(ah->ah_txpower.txp_rates_power_table[(_r)] & 0x3f) << (_v) \
)
/*
* DMA size definitions (2^(n+2))
*/
enum ath5k_dmasize {
AR5K_DMASIZE_4B = 0,
AR5K_DMASIZE_8B,
AR5K_DMASIZE_16B,
AR5K_DMASIZE_32B,
AR5K_DMASIZE_64B,
AR5K_DMASIZE_128B,
AR5K_DMASIZE_256B,
AR5K_DMASIZE_512B
};
/****************\
RX DEFINITIONS
\****************/
/*
* RX Status descriptor
*/
struct ath5k_rx_status {
u16 rs_datalen;
u16 rs_tstamp;
u8 rs_status;
u8 rs_phyerr;
s8 rs_rssi;
u8 rs_keyix;
u8 rs_rate;
u8 rs_antenna;
u8 rs_more;
};
#define AR5K_RXERR_CRC 0x01
#define AR5K_RXERR_PHY 0x02
#define AR5K_RXERR_FIFO 0x04
#define AR5K_RXERR_DECRYPT 0x08
#define AR5K_RXERR_MIC 0x10
#define AR5K_RXKEYIX_INVALID ((u8) -1)
#define AR5K_TXKEYIX_INVALID ((u32) -1)
/**************************\
BEACON TIMERS DEFINITIONS
\**************************/
#define AR5K_BEACON_PERIOD 0x0000ffff
#define AR5K_BEACON_ENA 0x00800000 /*enable beacon xmit*/
#define AR5K_BEACON_RESET_TSF 0x01000000 /*force a TSF reset*/
/*
* TSF to TU conversion:
*
* TSF is a 64bit value in usec (microseconds).
* TU is a 32bit value and defined by IEEE802.11 (page 6) as "A measurement of
* time equal to 1024 usec", so it's roughly milliseconds (usec / 1024).
*/
#define TSF_TO_TU(_tsf) (u32)((_tsf) >> 10)
/*******************************\
GAIN OPTIMIZATION DEFINITIONS
\*******************************/
enum ath5k_rfgain {
AR5K_RFGAIN_INACTIVE = 0,
AR5K_RFGAIN_ACTIVE,
AR5K_RFGAIN_READ_REQUESTED,
AR5K_RFGAIN_NEED_CHANGE,
};
struct ath5k_gain {
u8 g_step_idx;
u8 g_current;
u8 g_target;
u8 g_low;
u8 g_high;
u8 g_f_corr;
u8 g_state;
};
/********************\
COMMON DEFINITIONS
\********************/
#define AR5K_SLOT_TIME_9 396
#define AR5K_SLOT_TIME_20 880
#define AR5K_SLOT_TIME_MAX 0xffff
/*
* The following structure is used to map 2GHz channels to
* 5GHz Atheros channels.
* TODO: Clean up
*/
struct ath5k_athchan_2ghz {
u32 a2_flags;
u16 a2_athchan;
};
/******************\
RATE DEFINITIONS
\******************/
/**
* Seems the ar5xxx hardware supports up to 32 rates, indexed by 1-32.
*
* The rate code is used to get the RX rate or set the TX rate on the
* hardware descriptors. It is also used for internal modulation control
* and settings.
*
* This is the hardware rate map we are aware of:
*
* rate_code 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08
* rate_kbps 3000 1000 ? ? ? 2000 500 48000
*
* rate_code 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F 0x10
* rate_kbps 24000 12000 6000 54000 36000 18000 9000 ?
*
* rate_code 17 18 19 20 21 22 23 24
* rate_kbps ? ? ? ? ? ? ? 11000
*
* rate_code 25 26 27 28 29 30 31 32
* rate_kbps 5500 2000 1000 11000S 5500S 2000S ? ?
*
* "S" indicates CCK rates with short preamble.
*
* AR5211 has different rate codes for CCK (802.11B) rates. It only uses the
* lowest 4 bits, so they are the same as below with a 0xF mask.
* (0xB, 0xA, 0x9 and 0x8 for 1M, 2M, 5.5M and 11M).
* We handle this in ath5k_setup_bands().
*/
#define AR5K_MAX_RATES 32
/* B */
#define ATH5K_RATE_CODE_1M 0x1B
#define ATH5K_RATE_CODE_2M 0x1A
#define ATH5K_RATE_CODE_5_5M 0x19
#define ATH5K_RATE_CODE_11M 0x18
/* A and G */
#define ATH5K_RATE_CODE_6M 0x0B
#define ATH5K_RATE_CODE_9M 0x0F
#define ATH5K_RATE_CODE_12M 0x0A
#define ATH5K_RATE_CODE_18M 0x0E
#define ATH5K_RATE_CODE_24M 0x09
#define ATH5K_RATE_CODE_36M 0x0D
#define ATH5K_RATE_CODE_48M 0x08
#define ATH5K_RATE_CODE_54M 0x0C
/* XR */
#define ATH5K_RATE_CODE_XR_500K 0x07
#define ATH5K_RATE_CODE_XR_1M 0x02
#define ATH5K_RATE_CODE_XR_2M 0x06
#define ATH5K_RATE_CODE_XR_3M 0x01
/* adding this flag to rate_code enables short preamble */
#define AR5K_SET_SHORT_PREAMBLE 0x04
/*
* Crypto definitions
*/
#define AR5K_KEYCACHE_SIZE 8
extern int ath5k_modparam_nohwcrypt;
/***********************\
HW RELATED DEFINITIONS
\***********************/
/*
* Misc definitions
*/
#define AR5K_RSSI_EP_MULTIPLIER (1 << 7)
#define AR5K_ASSERT_ENTRY(_e, _s) do { \
if (_e >= _s) \
return false; \
} while (0)
/*
* Hardware interrupt abstraction
*/
/**
* enum ath5k_int - Hardware interrupt masks helpers
*
* @AR5K_INT_RX: mask to identify received frame interrupts, of type
* AR5K_ISR_RXOK or AR5K_ISR_RXERR
* @AR5K_INT_RXDESC: Request RX descriptor/Read RX descriptor (?)
* @AR5K_INT_RXNOFRM: No frame received (?)
* @AR5K_INT_RXEOL: received End Of List for VEOL (Virtual End Of List). The
* Queue Control Unit (QCU) signals an EOL interrupt only if a descriptor's
* LinkPtr is NULL. For more details, refer to:
* http://www.freepatentsonline.com/20030225739.html
* @AR5K_INT_RXORN: Indicates we got RX overrun (eg. no more descriptors).
* Note that Rx overrun is not always fatal, on some chips we can continue
* operation without resetting the card, that's why int_fatal is not
* common for all chips.
* @AR5K_INT_TX: mask to identify received frame interrupts, of type
* AR5K_ISR_TXOK or AR5K_ISR_TXERR
* @AR5K_INT_TXDESC: Request TX descriptor/Read TX status descriptor (?)
* @AR5K_INT_TXURN: received when we should increase the TX trigger threshold
* We currently do increments on interrupt by
* (AR5K_TUNE_MAX_TX_FIFO_THRES - current_trigger_level) / 2
* @AR5K_INT_MIB: Indicates the either Management Information Base counters or
* one of the PHY error counters reached the maximum value and should be
* read and cleared.
* @AR5K_INT_RXPHY: RX PHY Error
* @AR5K_INT_RXKCM: RX Key cache miss
* @AR5K_INT_SWBA: SoftWare Beacon Alert - indicates its time to send a
* beacon that must be handled in software. The alternative is if you
* have VEOL support, in that case you let the hardware deal with things.
* @AR5K_INT_BMISS: If in STA mode this indicates we have stopped seeing
* beacons from the AP have associated with, we should probably try to
* reassociate. When in IBSS mode this might mean we have not received
* any beacons from any local stations. Note that every station in an
* IBSS schedules to send beacons at the Target Beacon Transmission Time
* (TBTT) with a random backoff.
* @AR5K_INT_BNR: Beacon Not Ready interrupt - ??
* @AR5K_INT_GPIO: GPIO interrupt is used for RF Kill, disabled for now
* until properly handled
* @AR5K_INT_FATAL: Fatal errors were encountered, typically caused by DMA
* errors. These types of errors we can enable seem to be of type
* AR5K_SIMR2_MCABT, AR5K_SIMR2_SSERR and AR5K_SIMR2_DPERR.
* @AR5K_INT_GLOBAL: Used to clear and set the IER
* @AR5K_INT_NOCARD: signals the card has been removed
* @AR5K_INT_COMMON: common interrupts shared among MACs with the same
* bit value
*
* These are mapped to take advantage of some common bits
* between the MACs, to be able to set intr properties
* easier. Some of them are not used yet inside hw.c. Most map
* to the respective hw interrupt value as they are common among different
* MACs.
*/
enum ath5k_int {
AR5K_INT_RXOK = 0x00000001,
AR5K_INT_RXDESC = 0x00000002,
AR5K_INT_RXERR = 0x00000004,
AR5K_INT_RXNOFRM = 0x00000008,
AR5K_INT_RXEOL = 0x00000010,
AR5K_INT_RXORN = 0x00000020,
AR5K_INT_TXOK = 0x00000040,
AR5K_INT_TXDESC = 0x00000080,
AR5K_INT_TXERR = 0x00000100,
AR5K_INT_TXNOFRM = 0x00000200,
AR5K_INT_TXEOL = 0x00000400,
AR5K_INT_TXURN = 0x00000800,
AR5K_INT_MIB = 0x00001000,
AR5K_INT_SWI = 0x00002000,
AR5K_INT_RXPHY = 0x00004000,
AR5K_INT_RXKCM = 0x00008000,
AR5K_INT_SWBA = 0x00010000,
AR5K_INT_BRSSI = 0x00020000,
AR5K_INT_BMISS = 0x00040000,
AR5K_INT_FATAL = 0x00080000, /* Non common */
AR5K_INT_BNR = 0x00100000, /* Non common */
AR5K_INT_TIM = 0x00200000, /* Non common */
AR5K_INT_DTIM = 0x00400000, /* Non common */
AR5K_INT_DTIM_SYNC = 0x00800000, /* Non common */
AR5K_INT_GPIO = 0x01000000,
AR5K_INT_BCN_TIMEOUT = 0x02000000, /* Non common */
AR5K_INT_CAB_TIMEOUT = 0x04000000, /* Non common */
AR5K_INT_RX_DOPPLER = 0x08000000, /* Non common */
AR5K_INT_QCBRORN = 0x10000000, /* Non common */
AR5K_INT_QCBRURN = 0x20000000, /* Non common */
AR5K_INT_QTRIG = 0x40000000, /* Non common */
AR5K_INT_GLOBAL = 0x80000000,
AR5K_INT_TX_ALL = AR5K_INT_TXOK
| AR5K_INT_TXDESC
| AR5K_INT_TXERR
| AR5K_INT_TXEOL
| AR5K_INT_TXURN,
AR5K_INT_RX_ALL = AR5K_INT_RXOK
| AR5K_INT_RXDESC
| AR5K_INT_RXERR
| AR5K_INT_RXNOFRM
| AR5K_INT_RXEOL
| AR5K_INT_RXORN,
AR5K_INT_COMMON = AR5K_INT_RXOK
| AR5K_INT_RXDESC
| AR5K_INT_RXERR
| AR5K_INT_RXNOFRM
| AR5K_INT_RXEOL
| AR5K_INT_RXORN
| AR5K_INT_TXOK
| AR5K_INT_TXDESC
| AR5K_INT_TXERR
| AR5K_INT_TXNOFRM
| AR5K_INT_TXEOL
| AR5K_INT_TXURN
| AR5K_INT_MIB
| AR5K_INT_SWI
| AR5K_INT_RXPHY
| AR5K_INT_RXKCM
| AR5K_INT_SWBA
| AR5K_INT_BRSSI
| AR5K_INT_BMISS
| AR5K_INT_GPIO
| AR5K_INT_GLOBAL,
AR5K_INT_NOCARD = 0xffffffff
};
/* mask which calibration is active at the moment */
enum ath5k_calibration_mask {
AR5K_CALIBRATION_FULL = 0x01,
AR5K_CALIBRATION_SHORT = 0x02,
AR5K_CALIBRATION_ANI = 0x04,
};
/*
* Power management
*/
enum ath5k_power_mode {
AR5K_PM_UNDEFINED = 0,
AR5K_PM_AUTO,
AR5K_PM_AWAKE,
AR5K_PM_FULL_SLEEP,
AR5K_PM_NETWORK_SLEEP,
};
/*
* These match net80211 definitions (not used in
* mac80211).
* TODO: Clean this up
*/
#define AR5K_LED_INIT 0 /*IEEE80211_S_INIT*/
#define AR5K_LED_SCAN 1 /*IEEE80211_S_SCAN*/
#define AR5K_LED_AUTH 2 /*IEEE80211_S_AUTH*/
#define AR5K_LED_ASSOC 3 /*IEEE80211_S_ASSOC*/
#define AR5K_LED_RUN 4 /*IEEE80211_S_RUN*/
/* GPIO-controlled software LED */
#define AR5K_SOFTLED_PIN 0
#define AR5K_SOFTLED_ON 0
#define AR5K_SOFTLED_OFF 1
/* XXX: we *may* move cap_range stuff to struct wiphy */
struct ath5k_capabilities {
/*
* Supported PHY modes
* (ie. AR5K_MODE_11A, AR5K_MODE_11B, ...)
*/
DECLARE_BITMAP(cap_mode, AR5K_MODE_MAX);
/*
* Frequency range (without regulation restrictions)
*/
struct {
u16 range_2ghz_min;
u16 range_2ghz_max;
u16 range_5ghz_min;
u16 range_5ghz_max;
} cap_range;
/*
* Values stored in the EEPROM (some of them...)
*/
struct ath5k_eeprom_info cap_eeprom;
/*
* Queue information
*/
struct {
u8 q_tx_num;
} cap_queues;
bool cap_has_phyerr_counters;
};
/* size of noise floor history (keep it a power of two) */
#define ATH5K_NF_CAL_HIST_MAX 8
struct ath5k_nfcal_hist {
s16 index; /* current index into nfval */
s16 nfval[ATH5K_NF_CAL_HIST_MAX]; /* last few noise floors */
};
#define ATH5K_LED_MAX_NAME_LEN 31
/*
* State for LED triggers
*/
struct ath5k_led {
char name[ATH5K_LED_MAX_NAME_LEN + 1]; /* name of the LED in sysfs */
struct ath5k_hw *ah; /* driver state */
struct led_classdev led_dev; /* led classdev */
};
/* Rfkill */
struct ath5k_rfkill {
/* GPIO PIN for rfkill */
u16 gpio;
/* polarity of rfkill GPIO PIN */
bool polarity;
/* RFKILL toggle tasklet */
struct tasklet_struct toggleq;
};
/* statistics */
struct ath5k_statistics {
/* antenna use */
unsigned int antenna_rx[5]; /* frames count per antenna RX */
unsigned int antenna_tx[5]; /* frames count per antenna TX */
/* frame errors */
unsigned int rx_all_count; /* all RX frames, including errors */
unsigned int tx_all_count; /* all TX frames, including errors */
unsigned int rx_bytes_count; /* all RX bytes, including errored pkts
* and the MAC headers for each packet
*/
unsigned int tx_bytes_count; /* all TX bytes, including errored pkts
* and the MAC headers and padding for
* each packet.
*/
unsigned int rxerr_crc;
unsigned int rxerr_phy;
unsigned int rxerr_phy_code[32];
unsigned int rxerr_fifo;
unsigned int rxerr_decrypt;
unsigned int rxerr_mic;
unsigned int rxerr_proc;
unsigned int rxerr_jumbo;
unsigned int txerr_retry;
unsigned int txerr_fifo;
unsigned int txerr_filt;
/* MIB counters */
unsigned int ack_fail;
unsigned int rts_fail;
unsigned int rts_ok;
unsigned int fcs_error;
unsigned int beacons;
unsigned int mib_intr;
unsigned int rxorn_intr;
unsigned int rxeol_intr;
};
/*
* Misc defines
*/
#define AR5K_MAX_GPIO 10
#define AR5K_MAX_RF_BANKS 8
#if CHAN_DEBUG
#define ATH_CHAN_MAX (26 + 26 + 26 + 200 + 200)
#else
#define ATH_CHAN_MAX (14 + 14 + 14 + 252 + 20)
#endif
#define ATH_RXBUF 40 /* number of RX buffers */
#define ATH_TXBUF 200 /* number of TX buffers */
#define ATH_BCBUF 4 /* number of beacon buffers */
#define ATH5K_TXQ_LEN_MAX (ATH_TXBUF / 4) /* bufs per queue */
#define ATH5K_TXQ_LEN_LOW (ATH5K_TXQ_LEN_MAX / 2) /* low mark */
/* Driver state associated with an instance of a device */
struct ath5k_hw {
struct ath_common common;
struct pci_dev *pdev;
struct device *dev; /* for dma mapping */
int irq;
u16 devid;
void __iomem *iobase; /* address of the device */
struct mutex lock; /* dev-level lock */
struct ieee80211_hw *hw; /* IEEE 802.11 common */
struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
struct ieee80211_channel channels[ATH_CHAN_MAX];
struct ieee80211_rate rates[IEEE80211_NUM_BANDS][AR5K_MAX_RATES];
s8 rate_idx[IEEE80211_NUM_BANDS][AR5K_MAX_RATES];
enum nl80211_iftype opmode;
#ifdef CONFIG_ATH5K_DEBUG
struct ath5k_dbg_info debug; /* debug info */
#endif /* CONFIG_ATH5K_DEBUG */
struct ath5k_buf *bufptr; /* allocated buffer ptr */
struct ath5k_desc *desc; /* TX/RX descriptors */
dma_addr_t desc_daddr; /* DMA (physical) address */
size_t desc_len; /* size of TX/RX descriptors */
DECLARE_BITMAP(status, 6);
#define ATH_STAT_INVALID 0 /* disable hardware accesses */
#define ATH_STAT_MRRETRY 1 /* multi-rate retry support */
#define ATH_STAT_PROMISC 2
#define ATH_STAT_LEDSOFT 3 /* enable LED gpio status */
#define ATH_STAT_STARTED 4 /* opened & irqs enabled */
#define ATH_STAT_2G_DISABLED 5 /* multiband radio without 2G */
unsigned int filter_flags; /* HW flags, AR5K_RX_FILTER_* */
struct ieee80211_channel *curchan; /* current h/w channel */
u16 nvifs;
enum ath5k_int imask; /* interrupt mask copy */
spinlock_t irqlock;
bool rx_pending; /* rx tasklet pending */
bool tx_pending; /* tx tasklet pending */
u8 bssidmask[ETH_ALEN];
unsigned int led_pin, /* GPIO pin for driving LED */
led_on; /* pin setting for LED on */
struct work_struct reset_work; /* deferred chip reset */
struct list_head rxbuf; /* receive buffer */
spinlock_t rxbuflock;
u32 *rxlink; /* link ptr in last RX desc */
struct tasklet_struct rxtq; /* rx intr tasklet */
struct ath5k_led rx_led; /* rx led */
struct list_head txbuf; /* transmit buffer */
spinlock_t txbuflock;
unsigned int txbuf_len; /* buf count in txbuf list */
struct ath5k_txq txqs[AR5K_NUM_TX_QUEUES]; /* tx queues */
struct tasklet_struct txtq; /* tx intr tasklet */
struct ath5k_led tx_led; /* tx led */
struct ath5k_rfkill rf_kill;
struct tasklet_struct calib; /* calibration tasklet */
spinlock_t block; /* protects beacon */
struct tasklet_struct beacontq; /* beacon intr tasklet */
struct list_head bcbuf; /* beacon buffer */
struct ieee80211_vif *bslot[ATH_BCBUF];
u16 num_ap_vifs;
u16 num_adhoc_vifs;
unsigned int bhalq, /* SW q for outgoing beacons */
bmisscount, /* missed beacon transmits */
bintval, /* beacon interval in TU */
bsent;
unsigned int nexttbtt; /* next beacon time in TU */
struct ath5k_txq *cabq; /* content after beacon */
int power_level; /* Requested tx power in dBm */
bool assoc; /* associate state */
bool enable_beacon; /* true if beacons are on */
struct ath5k_statistics stats;
struct ath5k_ani_state ani_state;
struct tasklet_struct ani_tasklet; /* ANI calibration */
struct delayed_work tx_complete_work;
struct survey_info survey; /* collected survey info */
enum ath5k_int ah_imr;
struct ieee80211_channel *ah_current_channel;
bool ah_calibration;
bool ah_single_chip;
enum ath5k_version ah_version;
enum ath5k_radio ah_radio;
u32 ah_mac_srev;
u16 ah_mac_version;
u16 ah_phy_revision;
u16 ah_radio_5ghz_revision;
u16 ah_radio_2ghz_revision;
#define ah_modes ah_capabilities.cap_mode
#define ah_ee_version ah_capabilities.cap_eeprom.ee_version
u8 ah_retry_long;
u8 ah_retry_short;
u32 ah_use_32khz_clock;
u8 ah_coverage_class;
bool ah_ack_bitrate_high;
u8 ah_bwmode;
bool ah_short_slot;
/* Antenna Control */
u32 ah_ant_ctl[AR5K_EEPROM_N_MODES][AR5K_ANT_MAX];
u8 ah_ant_mode;
u8 ah_tx_ant;
u8 ah_def_ant;
struct ath5k_capabilities ah_capabilities;
struct ath5k_txq_info ah_txq[AR5K_NUM_TX_QUEUES];
u32 ah_txq_status;
u32 ah_txq_imr_txok;
u32 ah_txq_imr_txerr;
u32 ah_txq_imr_txurn;
u32 ah_txq_imr_txdesc;
u32 ah_txq_imr_txeol;
u32 ah_txq_imr_cbrorn;
u32 ah_txq_imr_cbrurn;
u32 ah_txq_imr_qtrig;
u32 ah_txq_imr_nofrm;
u32 ah_txq_isr;
u32 *ah_rf_banks;
size_t ah_rf_banks_size;
size_t ah_rf_regs_count;
struct ath5k_gain ah_gain;
u8 ah_offset[AR5K_MAX_RF_BANKS];
struct {
/* Temporary tables used for interpolation */
u8 tmpL[AR5K_EEPROM_N_PD_GAINS]
[AR5K_EEPROM_POWER_TABLE_SIZE];
u8 tmpR[AR5K_EEPROM_N_PD_GAINS]
[AR5K_EEPROM_POWER_TABLE_SIZE];
u8 txp_pd_table[AR5K_EEPROM_POWER_TABLE_SIZE * 2];
u16 txp_rates_power_table[AR5K_MAX_RATES];
u8 txp_min_idx;
bool txp_tpc;
/* Values in 0.25dB units */
s16 txp_min_pwr;
s16 txp_max_pwr;
s16 txp_cur_pwr;
/* Values in 0.5dB units */
s16 txp_offset;
s16 txp_ofdm;
s16 txp_cck_ofdm_gainf_delta;
/* Value in dB units */
s16 txp_cck_ofdm_pwr_delta;
bool txp_setup;
} ah_txpower;
struct ath5k_nfcal_hist ah_nfcal_hist;
/* average beacon RSSI in our BSS (used by ANI) */
struct ewma ah_beacon_rssi_avg;
/* noise floor from last periodic calibration */
s32 ah_noise_floor;
/* Calibration timestamp */
unsigned long ah_cal_next_full;
unsigned long ah_cal_next_ani;
unsigned long ah_cal_next_nf;
/* Calibration mask */
u8 ah_cal_mask;
/*
* Function pointers
*/
int (*ah_setup_tx_desc)(struct ath5k_hw *, struct ath5k_desc *,
unsigned int, unsigned int, int, enum ath5k_pkt_type,
unsigned int, unsigned int, unsigned int, unsigned int,
unsigned int, unsigned int, unsigned int, unsigned int);
int (*ah_proc_tx_desc)(struct ath5k_hw *, struct ath5k_desc *,
struct ath5k_tx_status *);
int (*ah_proc_rx_desc)(struct ath5k_hw *, struct ath5k_desc *,
struct ath5k_rx_status *);
};
struct ath_bus_ops {
enum ath_bus_type ath_bus_type;
void (*read_cachesize)(struct ath_common *common, int *csz);
bool (*eeprom_read)(struct ath_common *common, u32 off, u16 *data);
int (*eeprom_read_mac)(struct ath5k_hw *ah, u8 *mac);
};
/*
* Prototypes
*/
extern const struct ieee80211_ops ath5k_hw_ops;
/* Initialization and detach functions */
int ath5k_hw_init(struct ath5k_hw *ah);
void ath5k_hw_deinit(struct ath5k_hw *ah);
int ath5k_sysfs_register(struct ath5k_hw *ah);
void ath5k_sysfs_unregister(struct ath5k_hw *ah);
/*Chip id helper functions */
int ath5k_hw_read_srev(struct ath5k_hw *ah);
/* LED functions */
int ath5k_init_leds(struct ath5k_hw *ah);
void ath5k_led_enable(struct ath5k_hw *ah);
void ath5k_led_off(struct ath5k_hw *ah);
void ath5k_unregister_leds(struct ath5k_hw *ah);
/* Reset Functions */
int ath5k_hw_nic_wakeup(struct ath5k_hw *ah, struct ieee80211_channel *channel);
int ath5k_hw_on_hold(struct ath5k_hw *ah);
int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
struct ieee80211_channel *channel, bool fast, bool skip_pcu);
int ath5k_hw_register_timeout(struct ath5k_hw *ah, u32 reg, u32 flag, u32 val,
bool is_set);
/* Power management functions */
/* Clock rate related functions */
unsigned int ath5k_hw_htoclock(struct ath5k_hw *ah, unsigned int usec);
unsigned int ath5k_hw_clocktoh(struct ath5k_hw *ah, unsigned int clock);
void ath5k_hw_set_clockrate(struct ath5k_hw *ah);
/* DMA Related Functions */
void ath5k_hw_start_rx_dma(struct ath5k_hw *ah);
u32 ath5k_hw_get_rxdp(struct ath5k_hw *ah);
int ath5k_hw_set_rxdp(struct ath5k_hw *ah, u32 phys_addr);
int ath5k_hw_start_tx_dma(struct ath5k_hw *ah, unsigned int queue);
int ath5k_hw_stop_beacon_queue(struct ath5k_hw *ah, unsigned int queue);
u32 ath5k_hw_get_txdp(struct ath5k_hw *ah, unsigned int queue);
int ath5k_hw_set_txdp(struct ath5k_hw *ah, unsigned int queue,
u32 phys_addr);
int ath5k_hw_update_tx_triglevel(struct ath5k_hw *ah, bool increase);
/* Interrupt handling */
bool ath5k_hw_is_intr_pending(struct ath5k_hw *ah);
int ath5k_hw_get_isr(struct ath5k_hw *ah, enum ath5k_int *interrupt_mask);
enum ath5k_int ath5k_hw_set_imr(struct ath5k_hw *ah, enum ath5k_int new_mask);
void ath5k_hw_update_mib_counters(struct ath5k_hw *ah);
/* Init/Stop functions */
void ath5k_hw_dma_init(struct ath5k_hw *ah);
int ath5k_hw_dma_stop(struct ath5k_hw *ah);
/* EEPROM access functions */
int ath5k_eeprom_init(struct ath5k_hw *ah);
void ath5k_eeprom_detach(struct ath5k_hw *ah);
/* Protocol Control Unit Functions */
/* Helpers */
int ath5k_hw_get_frame_duration(struct ath5k_hw *ah,
int len, struct ieee80211_rate *rate, bool shortpre);
unsigned int ath5k_hw_get_default_slottime(struct ath5k_hw *ah);
unsigned int ath5k_hw_get_default_sifs(struct ath5k_hw *ah);
int ath5k_hw_set_opmode(struct ath5k_hw *ah, enum nl80211_iftype opmode);
void ath5k_hw_set_coverage_class(struct ath5k_hw *ah, u8 coverage_class);
/* RX filter control*/
int ath5k_hw_set_lladdr(struct ath5k_hw *ah, const u8 *mac);
void ath5k_hw_set_bssid(struct ath5k_hw *ah);
void ath5k_hw_set_bssid_mask(struct ath5k_hw *ah, const u8 *mask);
void ath5k_hw_set_mcast_filter(struct ath5k_hw *ah, u32 filter0, u32 filter1);
u32 ath5k_hw_get_rx_filter(struct ath5k_hw *ah);
void ath5k_hw_set_rx_filter(struct ath5k_hw *ah, u32 filter);
/* Receive (DRU) start/stop functions */
void ath5k_hw_start_rx_pcu(struct ath5k_hw *ah);
void ath5k_hw_stop_rx_pcu(struct ath5k_hw *ah);
/* Beacon control functions */
u64 ath5k_hw_get_tsf64(struct ath5k_hw *ah);
void ath5k_hw_set_tsf64(struct ath5k_hw *ah, u64 tsf64);
void ath5k_hw_reset_tsf(struct ath5k_hw *ah);
void ath5k_hw_init_beacon(struct ath5k_hw *ah, u32 next_beacon, u32 interval);
bool ath5k_hw_check_beacon_timers(struct ath5k_hw *ah, int intval);
/* Init function */
void ath5k_hw_pcu_init(struct ath5k_hw *ah, enum nl80211_iftype op_mode,
u8 mode);
/* Queue Control Unit, DFS Control Unit Functions */
int ath5k_hw_get_tx_queueprops(struct ath5k_hw *ah, int queue,
struct ath5k_txq_info *queue_info);
int ath5k_hw_set_tx_queueprops(struct ath5k_hw *ah, int queue,
const struct ath5k_txq_info *queue_info);
int ath5k_hw_setup_tx_queue(struct ath5k_hw *ah,
enum ath5k_tx_queue queue_type,
struct ath5k_txq_info *queue_info);
void ath5k_hw_set_tx_retry_limits(struct ath5k_hw *ah,
unsigned int queue);
u32 ath5k_hw_num_tx_pending(struct ath5k_hw *ah, unsigned int queue);
void ath5k_hw_release_tx_queue(struct ath5k_hw *ah, unsigned int queue);
int ath5k_hw_reset_tx_queue(struct ath5k_hw *ah, unsigned int queue);
int ath5k_hw_set_ifs_intervals(struct ath5k_hw *ah, unsigned int slot_time);
/* Init function */
int ath5k_hw_init_queues(struct ath5k_hw *ah);
/* Hardware Descriptor Functions */
int ath5k_hw_init_desc_functions(struct ath5k_hw *ah);
int ath5k_hw_setup_rx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
u32 size, unsigned int flags);
int ath5k_hw_setup_mrr_tx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
unsigned int tx_rate1, u_int tx_tries1, u_int tx_rate2,
u_int tx_tries2, unsigned int tx_rate3, u_int tx_tries3);
/* GPIO Functions */
void ath5k_hw_set_ledstate(struct ath5k_hw *ah, unsigned int state);
int ath5k_hw_set_gpio_input(struct ath5k_hw *ah, u32 gpio);
int ath5k_hw_set_gpio_output(struct ath5k_hw *ah, u32 gpio);
u32 ath5k_hw_get_gpio(struct ath5k_hw *ah, u32 gpio);
int ath5k_hw_set_gpio(struct ath5k_hw *ah, u32 gpio, u32 val);
void ath5k_hw_set_gpio_intr(struct ath5k_hw *ah, unsigned int gpio,
u32 interrupt_level);
/* RFkill Functions */
void ath5k_rfkill_hw_start(struct ath5k_hw *ah);
void ath5k_rfkill_hw_stop(struct ath5k_hw *ah);
/* Misc functions TODO: Cleanup */
int ath5k_hw_set_capabilities(struct ath5k_hw *ah);
int ath5k_hw_enable_pspoll(struct ath5k_hw *ah, u8 *bssid, u16 assoc_id);
int ath5k_hw_disable_pspoll(struct ath5k_hw *ah);
/* Initial register settings functions */
int ath5k_hw_write_initvals(struct ath5k_hw *ah, u8 mode, bool change_channel);
/* PHY functions */
/* Misc PHY functions */
u16 ath5k_hw_radio_revision(struct ath5k_hw *ah, enum ieee80211_band band);
int ath5k_hw_phy_disable(struct ath5k_hw *ah);
/* Gain_F optimization */
enum ath5k_rfgain ath5k_hw_gainf_calibrate(struct ath5k_hw *ah);
int ath5k_hw_rfgain_opt_init(struct ath5k_hw *ah);
/* PHY/RF channel functions */
bool ath5k_channel_ok(struct ath5k_hw *ah, struct ieee80211_channel *channel);
/* PHY calibration */
void ath5k_hw_init_nfcal_hist(struct ath5k_hw *ah);
int ath5k_hw_phy_calibrate(struct ath5k_hw *ah,
struct ieee80211_channel *channel);
void ath5k_hw_update_noise_floor(struct ath5k_hw *ah);
/* Spur mitigation */
bool ath5k_hw_chan_has_spur_noise(struct ath5k_hw *ah,
struct ieee80211_channel *channel);
/* Antenna control */
void ath5k_hw_set_antenna_mode(struct ath5k_hw *ah, u8 ant_mode);
void ath5k_hw_set_antenna_switch(struct ath5k_hw *ah, u8 ee_mode);
/* TX power setup */
int ath5k_hw_set_txpower_limit(struct ath5k_hw *ah, u8 txpower);
/* Init function */
int ath5k_hw_phy_init(struct ath5k_hw *ah, struct ieee80211_channel *channel,
u8 mode, bool fast);
/*
* Functions used internally
*/
static inline struct ath_common *ath5k_hw_common(struct ath5k_hw *ah)
{
return &ah->common;
}
static inline struct ath_regulatory *ath5k_hw_regulatory(struct ath5k_hw *ah)
{
return &(ath5k_hw_common(ah)->regulatory);
}
#ifdef CONFIG_ATHEROS_AR231X
#define AR5K_AR2315_PCI_BASE ((void __iomem *)0xb0100000)
static inline void __iomem *ath5k_ahb_reg(struct ath5k_hw *ah, u16 reg)
{
/* On AR2315 and AR2317 the PCI clock domain registers
* are outside of the WMAC register space */
if (unlikely((reg >= 0x4000) && (reg < 0x5000) &&
(ah->ah_mac_srev >= AR5K_SREV_AR2315_R6)))
return AR5K_AR2315_PCI_BASE + reg;
return ah->iobase + reg;
}
static inline u32 ath5k_hw_reg_read(struct ath5k_hw *ah, u16 reg)
{
return __raw_readl(ath5k_ahb_reg(ah, reg));
}
static inline void ath5k_hw_reg_write(struct ath5k_hw *ah, u32 val, u16 reg)
{
__raw_writel(val, ath5k_ahb_reg(ah, reg));
}
#else
static inline u32 ath5k_hw_reg_read(struct ath5k_hw *ah, u16 reg)
{
return ioread32(ah->iobase + reg);
}
static inline void ath5k_hw_reg_write(struct ath5k_hw *ah, u32 val, u16 reg)
{
iowrite32(val, ah->iobase + reg);
}
#endif
static inline enum ath_bus_type ath5k_get_bus_type(struct ath5k_hw *ah)
{
return ath5k_hw_common(ah)->bus_ops->ath_bus_type;
}
static inline void ath5k_read_cachesize(struct ath_common *common, int *csz)
{
common->bus_ops->read_cachesize(common, csz);
}
static inline bool ath5k_hw_nvram_read(struct ath5k_hw *ah, u32 off, u16 *data)
{
struct ath_common *common = ath5k_hw_common(ah);
return common->bus_ops->eeprom_read(common, off, data);
}
static inline u32 ath5k_hw_bitswap(u32 val, unsigned int bits)
{
u32 retval = 0, bit, i;
for (i = 0; i < bits; i++) {
bit = (val >> i) & 1;
retval = (retval << 1) | bit;
}
return retval;
}
#endif
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