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19fd6e5510
linux/drivers/net/wireless/ath5k/ath5k.h
Bruno Randolf 19fd6e5510 ath5k: struct ath5k_desc cleanups 
* make struct ath5k_desc clearer by directly including unions of structures,
  which correspond to the hardware descriptors of different HW versions (5210
  and 5212). before they were casted at onto ath5k_desc at different points
  (e.g.  ds_hw[2]).

* rename some structures and variable names to make their use clearer, e.g.
  struct ath5k_hw_4w_tx_desc to ath5k_hw_4w_tx_ctl.

* substitute "old" with "5210" and "new" with "5212" (eg. rename
  ath5k_hw_proc_new_rx_status() to ath5k_hw_proc_5212_rx_status()) because old
  and new are relative and we might have a newer structure at some point.

* unify structs ath5k_hw_old_rx_status and ath5k_hw_new_rx_status into one
  ath5k_hw_rx_status, because they only differ in the flags and masks.

drivers/net/wireless/ath5k/ath5k.h:     Changes-licensed-under: ISC
drivers/net/wireless/ath5k/debug.c:     Changes-licensed-under: GPL
drivers/net/wireless/ath5k/hw.c:        Changes-licensed-under: ISC
drivers/net/wireless/ath5k/hw.h:        Changes-licensed-under: ISC

Signed-off-by: Bruno Randolf <bruno@thinktube.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2008-03-07 16:07:49 -05:00

1177 lines
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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
/* Set this to 1 to disable regulatory domain restrictions for channel tests.
* WARNING: This is for debuging only and has side effects (eg. scan takes too
* long and results timeouts). It's also illegal to tune to some of the
* supported frequencies in some countries, so use this at your own risk,
* you've been warned. */
#define CHAN_DEBUG 0
#include <linux/io.h>
#include <linux/types.h>
#include <net/mac80211.h>
#include "hw.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("%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__)
/*
* Some tuneable values (these should be changeable by the user)
*/
#define AR5K_TUNE_DMA_BEACON_RESP 2
#define AR5K_TUNE_SW_BEACON_RESP 10
#define AR5K_TUNE_ADDITIONAL_SWBA_BACKOFF 0
#define AR5K_TUNE_RADAR_ALERT false
#define AR5K_TUNE_MIN_TX_FIFO_THRES 1
#define AR5K_TUNE_MAX_TX_FIFO_THRES ((IEEE80211_MAX_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 harware doesn't keep
* track of it. Max value depends on harware. 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_MAX_TXPOWER 60
#define AR5K_TUNE_DEFAULT_TXPOWER 30
#define AR5K_TUNE_TPC_TXPOWER true
#define AR5K_TUNE_ANT_DIVERSITY true
#define AR5K_TUNE_HWTXTRIES 4
/* token to use for aifs, cwmin, cwmax in MadWiFi */
#define AR5K_TXQ_USEDEFAULT ((u32) -1)
/* 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,
};
/*
* Common silicon revision/version values
*/
enum ath5k_srev_type {
AR5K_VERSION_VER,
AR5K_VERSION_RAD,
};
struct ath5k_srev_name {
const char *sr_name;
enum ath5k_srev_type sr_type;
u_int sr_val;
};
#define AR5K_SREV_UNKNOWN 0xffff
#define AR5K_SREV_VER_AR5210 0x00
#define AR5K_SREV_VER_AR5311 0x10
#define AR5K_SREV_VER_AR5311A 0x20
#define AR5K_SREV_VER_AR5311B 0x30
#define AR5K_SREV_VER_AR5211 0x40
#define AR5K_SREV_VER_AR5212 0x50
#define AR5K_SREV_VER_AR5213 0x55
#define AR5K_SREV_VER_AR5213A 0x59
#define AR5K_SREV_VER_AR2413 0x78
#define AR5K_SREV_VER_AR2414 0x79
#define AR5K_SREV_VER_AR2424 0xa0 /* PCI-E */
#define AR5K_SREV_VER_AR5424 0xa3 /* PCI-E */
#define AR5K_SREV_VER_AR5413 0xa4
#define AR5K_SREV_VER_AR5414 0xa5
#define AR5K_SREV_VER_AR5416 0xc0 /* PCI-E */
#define AR5K_SREV_VER_AR5418 0xca /* PCI-E */
#define AR5K_SREV_VER_AR2425 0xe2 /* PCI-E */
#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_2112 0x40
#define AR5K_SREV_RAD_2112A 0x45
#define AR5K_SREV_RAD_SC0 0x56 /* Found on 2413/2414 */
#define AR5K_SREV_RAD_SC1 0x63 /* Found on 5413/5414 */
#define AR5K_SREV_RAD_SC2 0xa2 /* Found on 2424-5/5424 */
#define AR5K_SREV_RAD_5133 0xc0 /* MIMO found on 5418 */
/* IEEE defs */
#define IEEE80211_MAX_LEN 2500
/* TODO add support to mac80211 for vendor-specific rates and modes */
/*
* Some of this information is based on Documentation from:
*
* http://madwifi.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 suport 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_11A_TURBO = 1,
AR5K_MODE_11B = 2,
AR5K_MODE_11G = 3,
AR5K_MODE_11G_TURBO = 4,
AR5K_MODE_XR = 0,
AR5K_MODE_MAX = 5
};
/* adding this flag to rate_code enables short preamble, see ar5212_reg.h */
#define AR5K_SET_SHORT_PREAMBLE 0x04
#define HAS_SHPREAMBLE(_ix) \
(rt->rates[_ix].modulation == IEEE80211_RATE_SHORT_PREAMBLE)
#define SHPREAMBLE_FLAG(_ix) \
(HAS_SHPREAMBLE(_ix) ? AR5K_SET_SHORT_PREAMBLE : 0)
/****************\
TX DEFINITIONS
\****************/
/*
* TX Status
*/
struct ath5k_tx_status {
u16 ts_seqnum;
u16 ts_tstamp;
u8 ts_status;
u8 ts_rate;
s8 ts_rssi;
u8 ts_shortretry;
u8 ts_longretry;
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 = 4, /*IEEE80211_TX_QUEUE_DATA4*/
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_BACKOFF_DISABLE 0x0020 /* Disable random post-backoff */
#define AR5K_TXQ_FLAG_RDYTIME_EXP_POLICY_ENABLE 0x0040 /* Enable ready time expiry policy (?)*/
#define AR5K_TXQ_FLAG_FRAG_BURST_BACKOFF_ENABLE 0x0080 /* Enable backoff while bursting */
#define AR5K_TXQ_FLAG_POST_FR_BKOFF_DIS 0x0100 /* Disable backoff while bursting */
#define AR5K_TXQ_FLAG_COMPRESSION_ENABLE 0x0200 /* Enable hw compression -not implemented-*/
/*
* 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) */
u32 tqi_aifs; /* Arbitrated Interframe Space */
s32 tqi_cw_min; /* Minimum Contention Window */
s32 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; /* Not used */
};
/*
* Transmit packet types.
* These are not fully used inside OpenHAL yet
*/
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[(_r)]) & 0x3f) << (_v)) \
)
#define AR5K_TXPOWER_CCK(_r, _v) ( \
(ah->ah_txpower.txp_rates[(_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
*/
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)
struct ath5k_mib_stats {
u32 ackrcv_bad;
u32 rts_bad;
u32 rts_good;
u32 fcs_bad;
u32 beacons;
};
/**************************\
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*/
#if 0
/**
* struct ath5k_beacon_state - Per-station beacon timer state.
* @bs_interval: in TU's, can also include the above flags
* @bs_cfp_max_duration: if non-zero hw is setup to coexist with a
* Point Coordination Function capable AP
*/
struct ath5k_beacon_state {
u32 bs_next_beacon;
u32 bs_next_dtim;
u32 bs_interval;
u8 bs_dtim_period;
u8 bs_cfp_period;
u16 bs_cfp_max_duration;
u16 bs_cfp_du_remain;
u16 bs_tim_offset;
u16 bs_sleep_duration;
u16 bs_bmiss_threshold;
u32 bs_cfp_next;
};
#endif
/*
* 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)
/********************\
COMMON DEFINITIONS
\********************/
/*
* Atheros hardware descriptor
*/
struct ath5k_desc {
u32 ds_link; /* physical address of the next descriptor */
u32 ds_data; /* physical address of data buffer (skb) */
union {
struct ath5k_hw_5210_tx_desc ds_tx5210;
struct ath5k_hw_5212_tx_desc ds_tx5212;
struct ath5k_hw_all_rx_desc ds_rx;
} ud;
union {
struct ath5k_rx_status rx;
struct ath5k_tx_status tx;
} ds_us;
#define ds_rxstat ds_us.rx
#define ds_txstat ds_us.tx
} __packed;
#define AR5K_RXDESC_INTREQ 0x0020
#define AR5K_TXDESC_CLRDMASK 0x0001
#define AR5K_TXDESC_NOACK 0x0002 /*[5211+]*/
#define AR5K_TXDESC_RTSENA 0x0004
#define AR5K_TXDESC_CTSENA 0x0008
#define AR5K_TXDESC_INTREQ 0x0010
#define AR5K_TXDESC_VEOL 0x0020 /*[5211+]*/
#define AR5K_SLOT_TIME_9 396
#define AR5K_SLOT_TIME_20 880
#define AR5K_SLOT_TIME_MAX 0xffff
/* channel_flags */
#define CHANNEL_CW_INT 0x0008 /* Contention Window interference detected */
#define CHANNEL_TURBO 0x0010 /* Turbo Channel */
#define CHANNEL_CCK 0x0020 /* CCK channel */
#define CHANNEL_OFDM 0x0040 /* OFDM channel */
#define CHANNEL_2GHZ 0x0080 /* 2GHz channel. */
#define CHANNEL_5GHZ 0x0100 /* 5GHz channel */
#define CHANNEL_PASSIVE 0x0200 /* Only passive scan allowed */
#define CHANNEL_DYN 0x0400 /* Dynamic CCK-OFDM channel (for g operation) */
#define CHANNEL_XR 0x0800 /* XR channel */
#define CHANNEL_A (CHANNEL_5GHZ|CHANNEL_OFDM)
#define CHANNEL_B (CHANNEL_2GHZ|CHANNEL_CCK)
#define CHANNEL_G (CHANNEL_2GHZ|CHANNEL_OFDM)
#define CHANNEL_T (CHANNEL_5GHZ|CHANNEL_OFDM|CHANNEL_TURBO)
#define CHANNEL_TG (CHANNEL_2GHZ|CHANNEL_OFDM|CHANNEL_TURBO)
#define CHANNEL_108A CHANNEL_T
#define CHANNEL_108G CHANNEL_TG
#define CHANNEL_X (CHANNEL_5GHZ|CHANNEL_OFDM|CHANNEL_XR)
#define CHANNEL_ALL (CHANNEL_OFDM|CHANNEL_CCK|CHANNEL_2GHZ|CHANNEL_5GHZ| \
CHANNEL_TURBO)
#define CHANNEL_ALL_NOTURBO (CHANNEL_ALL & ~CHANNEL_TURBO)
#define CHANNEL_MODES CHANNEL_ALL
/*
* Used internaly in OpenHAL (ar5211.c/ar5212.c
* for reset_tx_queue). Also see struct struct ieee80211_channel.
*/
#define IS_CHAN_XR(_c) ((_c.hw_value & CHANNEL_XR) != 0)
#define IS_CHAN_B(_c) ((_c.hw_value & CHANNEL_B) != 0)
/*
* The following structure will be used to map 2GHz channels to
* 5GHz Atheros channels.
*/
struct ath5k_athchan_2ghz {
u32 a2_flags;
u16 a2_athchan;
};
/*
* Rate definitions
* TODO: Clean them up or move them on mac80211 -most of these infos are
* used by the rate control algorytm on MadWiFi.
*/
/* Max number of rates on the rate table and what it seems
* Atheros hardware supports */
#define AR5K_MAX_RATES 32
/**
* struct ath5k_rate - rate structure
* @valid: is this a valid rate for rate control (remove)
* @modulation: respective mac80211 modulation
* @rate_kbps: rate in kbit/s
* @rate_code: hardware rate value, used in &struct ath5k_desc, on RX on
* &struct ath5k_rx_status.rs_rate and on TX on
* &struct ath5k_tx_status.ts_rate. Seems the ar5xxx harware supports
* up to 32 rates, indexed by 1-32. This means we really only need
* 6 bits for the rate_code.
* @dot11_rate: respective IEEE-802.11 rate value
* @control_rate: index of rate assumed to be used to send control frames.
* This can be used to set override the value on the rate duration
* registers. This is only useful if we can override in the harware at
* what rate we want to send control frames at. Note that IEEE-802.11
* Ch. 9.6 (after IEEE 802.11g changes) defines the rate at which we
* should send ACK/CTS, if we change this value we can be breaking
* the spec.
*
* This structure 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.
*
* On RX after the &struct ath5k_desc is parsed by the appropriate
* ah_proc_rx_desc() the respective hardware rate value is set in
* &struct ath5k_rx_status.rs_rate. On TX the desired rate is set in
* &struct ath5k_tx_status.ts_rate which is later used to setup the
* &struct ath5k_desc correctly. This is the hardware rate map we are
* aware of:
*
* rate_code 1 2 3 4 5 6 7 8
* rate_kbps 3000 1000 ? ? ? 2000 500 48000
*
* rate_code 9 10 11 12 13 14 15 16
* 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 ? ? ? ? ?
*
*/
struct ath5k_rate {
u8 valid;
u32 modulation;
u16 rate_kbps;
u8 rate_code;
u8 dot11_rate;
u8 control_rate;
};
/* XXX: GRR all this stuff to get leds blinking ??? (check out setcurmode) */
struct ath5k_rate_table {
u16 rate_count;
u8 rate_code_to_index[AR5K_MAX_RATES]; /* Back-mapping */
struct ath5k_rate rates[AR5K_MAX_RATES];
};
/*
* Rate tables...
* TODO: CLEAN THIS !!!
*/
#define AR5K_RATES_11A { 8, { \
255, 255, 255, 255, 255, 255, 255, 255, 6, 4, 2, 0, \
7, 5, 3, 1, 255, 255, 255, 255, 255, 255, 255, 255, \
255, 255, 255, 255, 255, 255, 255, 255 }, { \
{ 1, 0, 6000, 11, 140, 0 }, \
{ 1, 0, 9000, 15, 18, 0 }, \
{ 1, 0, 12000, 10, 152, 2 }, \
{ 1, 0, 18000, 14, 36, 2 }, \
{ 1, 0, 24000, 9, 176, 4 }, \
{ 1, 0, 36000, 13, 72, 4 }, \
{ 1, 0, 48000, 8, 96, 4 }, \
{ 1, 0, 54000, 12, 108, 4 } } \
}
#define AR5K_RATES_11B { 4, { \
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, \
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, \
3, 2, 1, 0, 255, 255, 255, 255 }, { \
{ 1, 0, 1000, 27, 130, 0 }, \
{ 1, IEEE80211_RATE_SHORT_PREAMBLE, 2000, 26, 132, 1 }, \
{ 1, IEEE80211_RATE_SHORT_PREAMBLE, 5500, 25, 139, 1 }, \
{ 1, IEEE80211_RATE_SHORT_PREAMBLE, 11000, 24, 150, 1 } } \
}
#define AR5K_RATES_11G { 12, { \
255, 255, 255, 255, 255, 255, 255, 255, 10, 8, 6, 4, \
11, 9, 7, 5, 255, 255, 255, 255, 255, 255, 255, 255, \
3, 2, 1, 0, 255, 255, 255, 255 }, { \
{ 1, 0, 1000, 27, 2, 0 }, \
{ 1, IEEE80211_RATE_SHORT_PREAMBLE, 2000, 26, 4, 1 }, \
{ 1, IEEE80211_RATE_SHORT_PREAMBLE, 5500, 25, 11, 1 }, \
{ 1, IEEE80211_RATE_SHORT_PREAMBLE, 11000, 24, 22, 1 }, \
{ 0, 0, 6000, 11, 12, 4 }, \
{ 0, 0, 9000, 15, 18, 4 }, \
{ 1, 0, 12000, 10, 24, 6 }, \
{ 1, 0, 18000, 14, 36, 6 }, \
{ 1, 0, 24000, 9, 48, 8 }, \
{ 1, 0, 36000, 13, 72, 8 }, \
{ 1, 0, 48000, 8, 96, 8 }, \
{ 1, 0, 54000, 12, 108, 8 } } \
}
#define AR5K_RATES_TURBO { 8, { \
255, 255, 255, 255, 255, 255, 255, 255, 6, 4, 2, 0, \
7, 5, 3, 1, 255, 255, 255, 255, 255, 255, 255, 255, \
255, 255, 255, 255, 255, 255, 255, 255 }, { \
{ 1, MODULATION_TURBO, 6000, 11, 140, 0 }, \
{ 1, MODULATION_TURBO, 9000, 15, 18, 0 }, \
{ 1, MODULATION_TURBO, 12000, 10, 152, 2 }, \
{ 1, MODULATION_TURBO, 18000, 14, 36, 2 }, \
{ 1, MODULATION_TURBO, 24000, 9, 176, 4 }, \
{ 1, MODULATION_TURBO, 36000, 13, 72, 4 }, \
{ 1, MODULATION_TURBO, 48000, 8, 96, 4 }, \
{ 1, MODULATION_TURBO, 54000, 12, 108, 4 } } \
}
#define AR5K_RATES_XR { 12, { \
255, 3, 1, 255, 255, 255, 2, 0, 10, 8, 6, 4, \
11, 9, 7, 5, 255, 255, 255, 255, 255, 255, 255, 255, \
255, 255, 255, 255, 255, 255, 255, 255 }, { \
{ 1, MODULATION_XR, 500, 7, 129, 0 }, \
{ 1, MODULATION_XR, 1000, 2, 139, 1 }, \
{ 1, MODULATION_XR, 2000, 6, 150, 2 }, \
{ 1, MODULATION_XR, 3000, 1, 150, 3 }, \
{ 1, 0, 6000, 11, 140, 4 }, \
{ 1, 0, 9000, 15, 18, 4 }, \
{ 1, 0, 12000, 10, 152, 6 }, \
{ 1, 0, 18000, 14, 36, 6 }, \
{ 1, 0, 24000, 9, 176, 8 }, \
{ 1, 0, 36000, 13, 72, 8 }, \
{ 1, 0, 48000, 8, 96, 8 }, \
{ 1, 0, 54000, 12, 108, 8 } } \
}
/*
* Crypto definitions
*/
#define AR5K_KEYCACHE_SIZE 8
/***********************\
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)
enum ath5k_ant_setting {
AR5K_ANT_VARIABLE = 0, /* variable by programming */
AR5K_ANT_FIXED_A = 1, /* fixed to 11a frequencies */
AR5K_ANT_FIXED_B = 2, /* fixed to 11b frequencies */
AR5K_ANT_MAX = 3,
};
/*
* 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 reseting 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 Management Information Base counters should be
* checked. We should do this with ath5k_hw_update_mib_counters() but
* it seems we should also then do some noise immunity work.
* @AR5K_INT_RXPHY: RX PHY Error
* @AR5K_INT_RXKCM: ??
* @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: Seems to be used to clear and set the IER
* @AR5K_INT_NOCARD: signals the card has been removed
* @AR5K_INT_COMMON: common interrupts shared amogst 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 amogst different
* MACs.
*/
enum ath5k_int {
AR5K_INT_RX = 0x00000001, /* Not common */
AR5K_INT_RXDESC = 0x00000002,
AR5K_INT_RXNOFRM = 0x00000008,
AR5K_INT_RXEOL = 0x00000010,
AR5K_INT_RXORN = 0x00000020,
AR5K_INT_TX = 0x00000040, /* Not common */
AR5K_INT_TXDESC = 0x00000080,
AR5K_INT_TXURN = 0x00000800,
AR5K_INT_MIB = 0x00001000,
AR5K_INT_RXPHY = 0x00004000,
AR5K_INT_RXKCM = 0x00008000,
AR5K_INT_SWBA = 0x00010000,
AR5K_INT_BMISS = 0x00040000,
AR5K_INT_BNR = 0x00100000, /* Not common */
AR5K_INT_GPIO = 0x01000000,
AR5K_INT_FATAL = 0x40000000, /* Not common */
AR5K_INT_GLOBAL = 0x80000000,
AR5K_INT_COMMON = AR5K_INT_RXNOFRM
| AR5K_INT_RXDESC
| AR5K_INT_RXEOL
| AR5K_INT_RXORN
| AR5K_INT_TXURN
| AR5K_INT_TXDESC
| AR5K_INT_MIB
| AR5K_INT_RXPHY
| AR5K_INT_RXKCM
| AR5K_INT_SWBA
| AR5K_INT_BMISS
| AR5K_INT_GPIO,
AR5K_INT_NOCARD = 0xffffffff
};
/*
* 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
* d80211).
*/
#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
/*
* Chipset capabilities -see ath5k_hw_get_capability-
* get_capability function is not yet fully implemented
* in OpenHAL so most of these don't work yet...
*/
enum ath5k_capability_type {
AR5K_CAP_REG_DMN = 0, /* Used to get current reg. domain id */
AR5K_CAP_TKIP_MIC = 2, /* Can handle TKIP MIC in hardware */
AR5K_CAP_TKIP_SPLIT = 3, /* TKIP uses split keys */
AR5K_CAP_PHYCOUNTERS = 4, /* PHY error counters */
AR5K_CAP_DIVERSITY = 5, /* Supports fast diversity */
AR5K_CAP_NUM_TXQUEUES = 6, /* Used to get max number of hw txqueues */
AR5K_CAP_VEOL = 7, /* Supports virtual EOL */
AR5K_CAP_COMPRESSION = 8, /* Supports compression */
AR5K_CAP_BURST = 9, /* Supports packet bursting */
AR5K_CAP_FASTFRAME = 10, /* Supports fast frames */
AR5K_CAP_TXPOW = 11, /* Used to get global tx power limit */
AR5K_CAP_TPC = 12, /* Can do per-packet tx power control (needed for 802.11a) */
AR5K_CAP_BSSIDMASK = 13, /* Supports bssid mask */
AR5K_CAP_MCAST_KEYSRCH = 14, /* Supports multicast key search */
AR5K_CAP_TSF_ADJUST = 15, /* Supports beacon tsf adjust */
AR5K_CAP_XR = 16, /* Supports XR mode */
AR5K_CAP_WME_TKIPMIC = 17, /* Supports TKIP MIC when using WMM */
AR5K_CAP_CHAN_HALFRATE = 18, /* Supports half rate channels */
AR5K_CAP_CHAN_QUARTERRATE = 19, /* Supports quarter rate channels */
AR5K_CAP_RFSILENT = 20, /* Supports RFsilent */
};
/* XXX: we *may* move cap_range stuff to struct wiphy */
struct ath5k_capabilities {
/*
* Supported PHY modes
* (ie. CHANNEL_A, CHANNEL_B, ...)
*/
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;
};
/***************************************\
HARDWARE ABSTRACTION LAYER STRUCTURE
\***************************************/
/*
* Misc defines
*/
#define AR5K_MAX_GPIO 10
#define AR5K_MAX_RF_BANKS 8
struct ath5k_hw {
u32 ah_magic;
struct ath5k_softc *ah_sc;
void __iomem *ah_iobase;
enum ath5k_int ah_imr;
enum ieee80211_if_types ah_op_mode;
enum ath5k_power_mode ah_power_mode;
struct ieee80211_channel ah_current_channel;
bool ah_turbo;
bool ah_calibration;
bool ah_running;
bool ah_single_chip;
enum ath5k_rfgain ah_rf_gain;
u32 ah_mac_srev;
u16 ah_mac_version;
u16 ah_mac_revision;
u16 ah_phy_revision;
u16 ah_radio_5ghz_revision;
u16 ah_radio_2ghz_revision;
u32 ah_phy_spending;
enum ath5k_version ah_version;
enum ath5k_radio ah_radio;
u32 ah_phy;
bool ah_5ghz;
bool ah_2ghz;
#define ah_regdomain ah_capabilities.cap_regdomain.reg_current
#define ah_regdomain_hw ah_capabilities.cap_regdomain.reg_hw
#define ah_modes ah_capabilities.cap_mode
#define ah_ee_version ah_capabilities.cap_eeprom.ee_version
u32 ah_atim_window;
u32 ah_aifs;
u32 ah_cw_min;
u32 ah_cw_max;
bool ah_software_retry;
u32 ah_limit_tx_retries;
u32 ah_antenna[AR5K_EEPROM_N_MODES][AR5K_ANT_MAX];
bool ah_ant_diversity;
u8 ah_sta_id[ETH_ALEN];
/* Current BSSID we are trying to assoc to / creating.
* This is passed by mac80211 on config_interface() and cached here for
* use in resets */
u8 ah_bssid[ETH_ALEN];
u32 ah_gpio[AR5K_MAX_GPIO];
int ah_gpio_npins;
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_rf_banks;
size_t ah_rf_banks_size;
struct ath5k_gain ah_gain;
u32 ah_offset[AR5K_MAX_RF_BANKS];
struct {
u16 txp_pcdac[AR5K_EEPROM_POWER_TABLE_SIZE];
u16 txp_rates[AR5K_MAX_RATES];
s16 txp_min;
s16 txp_max;
bool txp_tpc;
s16 txp_ofdm;
} ah_txpower;
struct {
bool r_enabled;
int r_last_alert;
struct ieee80211_channel r_last_channel;
} ah_radar;
/* noise floor from last periodic calibration */
s32 ah_noise_floor;
/*
* Function pointers
*/
int (*ah_setup_tx_desc)(struct ath5k_hw *, struct ath5k_desc *,
unsigned int, unsigned int, enum ath5k_pkt_type, unsigned int,
unsigned int, unsigned int, unsigned int, unsigned int,
unsigned int, unsigned int, unsigned int);
int (*ah_setup_xtx_desc)(struct ath5k_hw *, struct ath5k_desc *,
unsigned int, unsigned int, unsigned int, unsigned int,
unsigned int, unsigned int);
int (*ah_proc_tx_desc)(struct ath5k_hw *, struct ath5k_desc *);
int (*ah_proc_rx_desc)(struct ath5k_hw *, struct ath5k_desc *);
};
/*
* Prototypes
*/
/* General Functions */
extern int ath5k_hw_register_timeout(struct ath5k_hw *ah, u32 reg, u32 flag, u32 val, bool is_set);
/* Attach/Detach Functions */
extern struct ath5k_hw *ath5k_hw_attach(struct ath5k_softc *sc, u8 mac_version);
extern const struct ath5k_rate_table *ath5k_hw_get_rate_table(struct ath5k_hw *ah, unsigned int mode);
extern void ath5k_hw_detach(struct ath5k_hw *ah);
/* Reset Functions */
extern int ath5k_hw_reset(struct ath5k_hw *ah, enum ieee80211_if_types op_mode, struct ieee80211_channel *channel, bool change_channel);
/* Power management functions */
extern int ath5k_hw_set_power(struct ath5k_hw *ah, enum ath5k_power_mode mode, bool set_chip, u16 sleep_duration);
/* DMA Related Functions */
extern void ath5k_hw_start_rx(struct ath5k_hw *ah);
extern int ath5k_hw_stop_rx_dma(struct ath5k_hw *ah);
extern u32 ath5k_hw_get_rx_buf(struct ath5k_hw *ah);
extern void ath5k_hw_put_rx_buf(struct ath5k_hw *ah, u32 phys_addr);
extern int ath5k_hw_tx_start(struct ath5k_hw *ah, unsigned int queue);
extern int ath5k_hw_stop_tx_dma(struct ath5k_hw *ah, unsigned int queue);
extern u32 ath5k_hw_get_tx_buf(struct ath5k_hw *ah, unsigned int queue);
extern int ath5k_hw_put_tx_buf(struct ath5k_hw *ah, unsigned int queue, u32 phys_addr);
extern int ath5k_hw_update_tx_triglevel(struct ath5k_hw *ah, bool increase);
/* Interrupt handling */
extern bool ath5k_hw_is_intr_pending(struct ath5k_hw *ah);
extern int ath5k_hw_get_isr(struct ath5k_hw *ah, enum ath5k_int *interrupt_mask);
extern enum ath5k_int ath5k_hw_set_intr(struct ath5k_hw *ah, enum ath5k_int new_mask);
/* EEPROM access functions */
extern int ath5k_hw_set_regdomain(struct ath5k_hw *ah, u16 regdomain);
/* Protocol Control Unit Functions */
extern int ath5k_hw_set_opmode(struct ath5k_hw *ah);
/* BSSID Functions */
extern void ath5k_hw_get_lladdr(struct ath5k_hw *ah, u8 *mac);
extern int ath5k_hw_set_lladdr(struct ath5k_hw *ah, const u8 *mac);
extern void ath5k_hw_set_associd(struct ath5k_hw *ah, const u8 *bssid, u16 assoc_id);
extern int ath5k_hw_set_bssid_mask(struct ath5k_hw *ah, const u8 *mask);
/* Receive start/stop functions */
extern void ath5k_hw_start_rx_pcu(struct ath5k_hw *ah);
extern void ath5k_hw_stop_pcu_recv(struct ath5k_hw *ah);
/* RX Filter functions */
extern void ath5k_hw_set_mcast_filter(struct ath5k_hw *ah, u32 filter0, u32 filter1);
extern int ath5k_hw_set_mcast_filterindex(struct ath5k_hw *ah, u32 index);
extern int ath5k_hw_clear_mcast_filter_idx(struct ath5k_hw *ah, u32 index);
extern u32 ath5k_hw_get_rx_filter(struct ath5k_hw *ah);
extern void ath5k_hw_set_rx_filter(struct ath5k_hw *ah, u32 filter);
/* Beacon related functions */
extern u32 ath5k_hw_get_tsf32(struct ath5k_hw *ah);
extern u64 ath5k_hw_get_tsf64(struct ath5k_hw *ah);
extern void ath5k_hw_reset_tsf(struct ath5k_hw *ah);
extern void ath5k_hw_init_beacon(struct ath5k_hw *ah, u32 next_beacon, u32 interval);
#if 0
extern int ath5k_hw_set_beacon_timers(struct ath5k_hw *ah, const struct ath5k_beacon_state *state);
extern void ath5k_hw_reset_beacon(struct ath5k_hw *ah);
extern int ath5k_hw_beaconq_finish(struct ath5k_hw *ah, unsigned long phys_addr);
#endif
extern void ath5k_hw_update_mib_counters(struct ath5k_hw *ah, struct ath5k_mib_stats *statistics);
/* ACK bit rate */
void ath5k_hw_set_ack_bitrate_high(struct ath5k_hw *ah, bool high);
/* ACK/CTS Timeouts */
extern int ath5k_hw_set_ack_timeout(struct ath5k_hw *ah, unsigned int timeout);
extern unsigned int ath5k_hw_get_ack_timeout(struct ath5k_hw *ah);
extern int ath5k_hw_set_cts_timeout(struct ath5k_hw *ah, unsigned int timeout);
extern unsigned int ath5k_hw_get_cts_timeout(struct ath5k_hw *ah);
/* Key table (WEP) functions */
extern int ath5k_hw_reset_key(struct ath5k_hw *ah, u16 entry);
extern int ath5k_hw_is_key_valid(struct ath5k_hw *ah, u16 entry);
extern int ath5k_hw_set_key(struct ath5k_hw *ah, u16 entry, const struct ieee80211_key_conf *key, const u8 *mac);
extern int ath5k_hw_set_key_lladdr(struct ath5k_hw *ah, u16 entry, const u8 *mac);
/* Queue Control Unit, DFS Control Unit Functions */
extern int ath5k_hw_setup_tx_queue(struct ath5k_hw *ah, enum ath5k_tx_queue queue_type, struct ath5k_txq_info *queue_info);
extern int ath5k_hw_setup_tx_queueprops(struct ath5k_hw *ah, int queue, const struct ath5k_txq_info *queue_info);
extern int ath5k_hw_get_tx_queueprops(struct ath5k_hw *ah, int queue, struct ath5k_txq_info *queue_info);
extern void ath5k_hw_release_tx_queue(struct ath5k_hw *ah, unsigned int queue);
extern int ath5k_hw_reset_tx_queue(struct ath5k_hw *ah, unsigned int queue);
extern u32 ath5k_hw_num_tx_pending(struct ath5k_hw *ah, unsigned int queue);
extern int ath5k_hw_set_slot_time(struct ath5k_hw *ah, unsigned int slot_time);
extern unsigned int ath5k_hw_get_slot_time(struct ath5k_hw *ah);
/* Hardware Descriptor Functions */
extern int ath5k_hw_setup_rx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc, u32 size, unsigned int flags);
/* GPIO Functions */
extern void ath5k_hw_set_ledstate(struct ath5k_hw *ah, unsigned int state);
extern int ath5k_hw_set_gpio_output(struct ath5k_hw *ah, u32 gpio);
extern int ath5k_hw_set_gpio_input(struct ath5k_hw *ah, u32 gpio);
extern u32 ath5k_hw_get_gpio(struct ath5k_hw *ah, u32 gpio);
extern int ath5k_hw_set_gpio(struct ath5k_hw *ah, u32 gpio, u32 val);
extern void ath5k_hw_set_gpio_intr(struct ath5k_hw *ah, unsigned int gpio, u32 interrupt_level);
/* Misc functions */
extern int ath5k_hw_get_capability(struct ath5k_hw *ah, enum ath5k_capability_type cap_type, u32 capability, u32 *result);
/* Initial register settings functions */
extern int ath5k_hw_write_initvals(struct ath5k_hw *ah, u8 mode, bool change_channel);
/* Initialize RF */
extern int ath5k_hw_rfregs(struct ath5k_hw *ah, struct ieee80211_channel *channel, unsigned int mode);
extern int ath5k_hw_rfgain(struct ath5k_hw *ah, unsigned int freq);
extern enum ath5k_rfgain ath5k_hw_get_rf_gain(struct ath5k_hw *ah);
extern int ath5k_hw_set_rfgain_opt(struct ath5k_hw *ah);
/* PHY/RF channel functions */
extern bool ath5k_channel_ok(struct ath5k_hw *ah, u16 freq, unsigned int flags);
extern int ath5k_hw_channel(struct ath5k_hw *ah, struct ieee80211_channel *channel);
/* PHY calibration */
extern int ath5k_hw_phy_calibrate(struct ath5k_hw *ah, struct ieee80211_channel *channel);
extern int ath5k_hw_phy_disable(struct ath5k_hw *ah);
/* Misc PHY functions */
extern u16 ath5k_hw_radio_revision(struct ath5k_hw *ah, unsigned int chan);
extern void ath5k_hw_set_def_antenna(struct ath5k_hw *ah, unsigned int ant);
extern unsigned int ath5k_hw_get_def_antenna(struct ath5k_hw *ah);
extern int ath5k_hw_noise_floor_calibration(struct ath5k_hw *ah, short freq);
/* TX power setup */
extern int ath5k_hw_txpower(struct ath5k_hw *ah, struct ieee80211_channel *channel, unsigned int txpower);
extern int ath5k_hw_set_txpower_limit(struct ath5k_hw *ah, unsigned int power);
static inline u32 ath5k_hw_reg_read(struct ath5k_hw *ah, u16 reg)
{
return ioread32(ah->ah_iobase + reg);
}
static inline void ath5k_hw_reg_write(struct ath5k_hw *ah, u32 val, u16 reg)
{
iowrite32(val, ah->ah_iobase + reg);
}
#endif
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