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      1 /*
      2  * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
      3  * Copyright (c) 2002-2008 Atheros Communications, Inc.
      4  *
      5  * Permission to use, copy, modify, and/or distribute this software for any
      6  * purpose with or without fee is hereby granted, provided that the above
      7  * copyright notice and this permission notice appear in all copies.
      8  *
      9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     16  *
     17  * $Id: ah_internal.h,v 1.6 2011/03/07 11:25:42 cegger Exp $
     18  */
     19 #ifndef _ATH_AH_INTERAL_H_
     20 #define _ATH_AH_INTERAL_H_
     21 /*
     22  * Atheros Device Hardware Access Layer (HAL).
     23  *
     24  * Internal definitions.
     25  */
     26 #define	AH_NULL	0
     27 #define	AH_MIN(a,b)	((a)<(b)?(a):(b))
     28 #define	AH_MAX(a,b)	((a)>(b)?(a):(b))
     29 
     30 #ifndef NBBY
     31 #define	NBBY	8			/* number of bits/byte */
     32 #endif
     33 
     34 #ifndef roundup
     35 #define	roundup(x, y)	((((x)+((y)-1))/(y))*(y))  /* to any y */
     36 #endif
     37 #ifndef howmany
     38 #define	howmany(x, y)	(((x)+((y)-1))/(y))
     39 #endif
     40 
     41 #ifndef offsetof
     42 #define	offsetof(type, field)	((size_t)(&((type *)0)->field))
     43 #endif
     44 
     45 /*
     46  * Remove const in a way that keeps the compiler happy.
     47  * This works for gcc but may require other magic for
     48  * other compilers (not sure where this should reside).
     49  * Note that uintptr_t is C99.
     50  */
     51 #ifndef __DECONST
     52 #define	__DECONST(type, var)	((type)(unsigned long)(const void *)(var))
     53 #endif
     54 
     55 typedef struct {
     56 	uint16_t	start;		/* first register */
     57 	uint16_t	end;		/* ending register or zero */
     58 } HAL_REGRANGE;
     59 
     60 typedef struct {
     61 	uint32_t	addr;		/* register address/offset */
     62 	uint32_t	value;		/* value to write */
     63 } HAL_REGWRITE;
     64 
     65 /*
     66  * Transmit power scale factor.
     67  *
     68  * NB: This is not public because we want to discourage the use of
     69  *     scaling; folks should use the tx power limit interface.
     70  */
     71 typedef enum {
     72 	HAL_TP_SCALE_MAX	= 0,		/* no scaling (default) */
     73 	HAL_TP_SCALE_50		= 1,		/* 50% of max (-3 dBm) */
     74 	HAL_TP_SCALE_25		= 2,		/* 25% of max (-6 dBm) */
     75 	HAL_TP_SCALE_12		= 3,		/* 12% of max (-9 dBm) */
     76 	HAL_TP_SCALE_MIN	= 4,		/* min, but still on */
     77 } HAL_TP_SCALE;
     78 
     79 typedef enum {
     80  	HAL_CAP_RADAR		= 0,		/* Radar capability */
     81  	HAL_CAP_AR		= 1,		/* AR capability */
     82 } HAL_PHYDIAG_CAPS;
     83 
     84 /*
     85  * Each chip or class of chips registers to offer support.
     86  */
     87 struct ath_hal_chip {
     88 	const char	*name;
     89 	const char	*(*probe)(uint16_t vendorid, uint16_t devid);
     90 	struct ath_hal	*(*attach)(uint16_t devid, HAL_SOFTC,
     91 			    HAL_BUS_TAG, HAL_BUS_HANDLE, HAL_STATUS *error);
     92 };
     93 #ifndef AH_CHIP
     94 #define	AH_CHIP(_name, _probe, _attach)				\
     95 static struct ath_hal_chip _name##_chip = {			\
     96 	.name		= #_name,				\
     97 	.probe		= _probe,				\
     98 	.attach		= _attach				\
     99 };								\
    100 OS_DATA_SET(ah_chips, _name##_chip)
    101 #endif
    102 
    103 /*
    104  * Each RF backend registers to offer support; this is mostly
    105  * used by multi-chip 5212 solutions.  Single-chip solutions
    106  * have a fixed idea about which RF to use.
    107  */
    108 struct ath_hal_rf {
    109 	const char	*name;
    110 	HAL_BOOL	(*probe)(struct ath_hal *ah);
    111 	HAL_BOOL	(*attach)(struct ath_hal *ah, HAL_STATUS *ecode);
    112 };
    113 #ifndef AH_RF
    114 #define	AH_RF(_name, _probe, _attach)				\
    115 static struct ath_hal_rf _name##_rf = {				\
    116 	.name		= __STRING(_name),			\
    117 	.probe		= _probe,				\
    118 	.attach		= _attach				\
    119 };								\
    120 OS_DATA_SET(ah_rfs, _name##_rf)
    121 #endif
    122 
    123 struct ath_hal_rf *ath_hal_rfprobe(struct ath_hal *ah, HAL_STATUS *ecode);
    124 
    125 /*
    126  * Internal form of a HAL_CHANNEL.  Note that the structure
    127  * must be defined such that you can cast references to a
    128  * HAL_CHANNEL so don't shuffle the first two members.
    129  */
    130 typedef struct {
    131 	uint32_t	channelFlags;
    132 	uint16_t	channel;	/* NB: must be first for casting */
    133 	uint8_t		privFlags;
    134 	int8_t		maxRegTxPower;
    135 	int8_t		maxTxPower;
    136 	int8_t		minTxPower;	/* as above... */
    137 
    138 	HAL_BOOL	bssSendHere;
    139 	uint8_t		gainI;
    140 	HAL_BOOL	iqCalValid;
    141 	uint8_t		calValid;		/* bitmask of cal types */
    142 	int8_t		iCoff;
    143 	int8_t		qCoff;
    144 	int16_t		rawNoiseFloor;
    145 	int16_t		noiseFloorAdjust;
    146 	int8_t		antennaMax;
    147 	uint32_t	regDmnFlags;		/* Flags for channel use in reg */
    148 	uint32_t	conformanceTestLimit;	/* conformance test limit from reg domain */
    149 	uint16_t	mainSpur;		/* cached spur value for this cahnnel */
    150 } HAL_CHANNEL_INTERNAL;
    151 
    152 typedef struct {
    153 	uint32_t	halChanSpreadSupport 		: 1,
    154 			halSleepAfterBeaconBroken	: 1,
    155 			halCompressSupport		: 1,
    156 			halBurstSupport			: 1,
    157 			halFastFramesSupport		: 1,
    158 			halChapTuningSupport		: 1,
    159 			halTurboGSupport		: 1,
    160 			halTurboPrimeSupport		: 1,
    161 			halMicAesCcmSupport		: 1,
    162 			halMicCkipSupport		: 1,
    163 			halMicTkipSupport		: 1,
    164 			halTkipMicTxRxKeySupport	: 1,
    165 			halCipherAesCcmSupport		: 1,
    166 			halCipherCkipSupport		: 1,
    167 			halCipherTkipSupport		: 1,
    168 			halPSPollBroken			: 1,
    169 			halVEOLSupport			: 1,
    170 			halBssIdMaskSupport		: 1,
    171 			halMcastKeySrchSupport		: 1,
    172 			halTsfAddSupport		: 1,
    173 			halChanHalfRate			: 1,
    174 			halChanQuarterRate		: 1,
    175 			halHTSupport			: 1,
    176 			halRfSilentSupport		: 1,
    177 			halHwPhyCounterSupport		: 1,
    178 			halWowSupport			: 1,
    179 			halWowMatchPatternExact		: 1,
    180 			halAutoSleepSupport		: 1,
    181 			halFastCCSupport		: 1,
    182 			halBtCoexSupport		: 1;
    183 	uint32_t	halRxStbcSupport		: 1,
    184 			halTxStbcSupport		: 1,
    185 			halGTTSupport			: 1,
    186 			halCSTSupport			: 1,
    187 			halRifsRxSupport		: 1,
    188 			halRifsTxSupport		: 1,
    189 			halExtChanDfsSupport		: 1,
    190 			halForcePpmSupport		: 1,
    191 			halEnhancedPmSupport		: 1,
    192 			halMbssidAggrSupport		: 1,
    193 			halBssidMatchSupport		: 1;
    194 	uint32_t	halWirelessModes;
    195 	uint16_t	halTotalQueues;
    196 	uint16_t	halKeyCacheSize;
    197 	uint16_t	halLow5GhzChan, halHigh5GhzChan;
    198 	uint16_t	halLow2GhzChan, halHigh2GhzChan;
    199 	int		halTstampPrecision;
    200 	int		halRtsAggrLimit;
    201 	uint8_t		halTxChainMask;
    202 	uint8_t		halRxChainMask;
    203 	uint8_t		halNumGpioPins;
    204 	uint8_t		halNumAntCfg2GHz;
    205 	uint8_t		halNumAntCfg5GHz;
    206 	uint32_t	halIntrMask;
    207 } HAL_CAPABILITIES;
    208 
    209 /*
    210  * The ``private area'' follows immediately after the ``public area''
    211  * in the data structure returned by ath_hal_attach.  Private data are
    212  * used by device-independent code such as the regulatory domain support.
    213  * In general, code within the HAL should never depend on data in the
    214  * public area.  Instead any public data needed internally should be
    215  * shadowed here.
    216  *
    217  * When declaring a device-specific ath_hal data structure this structure
    218  * is assumed to at the front; e.g.
    219  *
    220  *	struct ath_hal_5212 {
    221  *		struct ath_hal_private	ah_priv;
    222  *		...
    223  *	};
    224  *
    225  * It might be better to manage the method pointers in this structure
    226  * using an indirect pointer to a read-only data structure but this would
    227  * disallow class-style method overriding.
    228  */
    229 struct ath_hal_private {
    230 	struct ath_hal	h;			/* public area */
    231 
    232 	/* NB: all methods go first to simplify initialization */
    233 	HAL_BOOL	(*ah_getChannelEdges)(struct ath_hal*,
    234 				uint16_t channelFlags,
    235 				uint16_t *lowChannel, uint16_t *highChannel);
    236 	u_int		(*ah_getWirelessModes)(struct ath_hal*);
    237 	HAL_BOOL	(*ah_eepromRead)(struct ath_hal *, u_int off,
    238 				uint16_t *data);
    239 	HAL_BOOL	(*ah_eepromWrite)(struct ath_hal *, u_int off,
    240 				uint16_t data);
    241 	HAL_BOOL	(*ah_gpioCfgOutput)(struct ath_hal *,
    242 				uint32_t gpio, HAL_GPIO_MUX_TYPE);
    243 	HAL_BOOL	(*ah_gpioCfgInput)(struct ath_hal *, uint32_t gpio);
    244 	uint32_t	(*ah_gpioGet)(struct ath_hal *, uint32_t gpio);
    245 	HAL_BOOL	(*ah_gpioSet)(struct ath_hal *,
    246 				uint32_t gpio, uint32_t val);
    247 	void		(*ah_gpioSetIntr)(struct ath_hal*, u_int, uint32_t);
    248 	HAL_BOOL	(*ah_getChipPowerLimits)(struct ath_hal *,
    249 				HAL_CHANNEL *, uint32_t);
    250 	int16_t		(*ah_getNfAdjust)(struct ath_hal *,
    251 				const HAL_CHANNEL_INTERNAL*);
    252 	void		(*ah_getNoiseFloor)(struct ath_hal *,
    253 				int16_t nfarray[]);
    254 
    255 	void		*ah_eeprom;		/* opaque EEPROM state */
    256 	uint16_t	ah_eeversion;		/* EEPROM version */
    257 	void		(*ah_eepromDetach)(struct ath_hal *);
    258 	HAL_STATUS	(*ah_eepromGet)(struct ath_hal *, int, void *);
    259 	HAL_BOOL	(*ah_eepromSet)(struct ath_hal *, int, int);
    260 	uint16_t	(*ah_getSpurChan)(struct ath_hal *, int, HAL_BOOL);
    261 	HAL_BOOL	(*ah_eepromDiag)(struct ath_hal *, int request,
    262 			    const void *args, uint32_t argsize,
    263 			    void **result, uint32_t *resultsize);
    264 
    265 	/*
    266 	 * Device revision information.
    267 	 */
    268 	uint16_t	ah_devid;		/* PCI device ID */
    269 	uint16_t	ah_subvendorid;		/* PCI subvendor ID */
    270 	uint32_t	ah_macVersion;		/* MAC version id */
    271 	uint16_t	ah_macRev;		/* MAC revision */
    272 	uint16_t	ah_phyRev;		/* PHY revision */
    273 	uint16_t	ah_analog5GhzRev;	/* 2GHz radio revision */
    274 	uint16_t	ah_analog2GhzRev;	/* 5GHz radio revision */
    275 	uint8_t		ah_ispcie;		/* PCIE, special treatment */
    276 
    277 
    278 	HAL_OPMODE	ah_opmode;		/* operating mode from reset */
    279 	HAL_CAPABILITIES ah_caps;		/* device capabilities */
    280 	uint32_t	ah_diagreg;		/* user-specified AR_DIAG_SW */
    281 	int16_t		ah_powerLimit;		/* tx power cap */
    282 	uint16_t	ah_maxPowerLevel;	/* calculated max tx power */
    283 	u_int		ah_tpScale;		/* tx power scale factor */
    284 	uint32_t	ah_11nCompat;		/* 11n compat controls */
    285 
    286 	/*
    287 	 * State for regulatory domain handling.
    288 	 */
    289 	HAL_REG_DOMAIN	ah_currentRD;		/* Current regulatory domain */
    290 	HAL_CTRY_CODE	ah_countryCode;		/* current country code */
    291 	HAL_CHANNEL_INTERNAL ah_channels[256];	/* calculated channel list */
    292 	u_int		ah_nchan;		/* valid channels in list */
    293 	HAL_CHANNEL_INTERNAL *ah_curchan;	/* current channel */
    294 
    295 	uint8_t    	ah_coverageClass;   	/* coverage class */
    296 	HAL_BOOL    	ah_regdomainUpdate;     /* regdomain is updated? */
    297 	/*
    298 	 * RF Silent handling; setup according to the EEPROM.
    299 	 */
    300 	uint16_t	ah_rfsilent;		/* GPIO pin + polarity */
    301 	HAL_BOOL	ah_rfkillEnabled;	/* enable/disable RfKill */
    302 	/*
    303 	 * Diagnostic support for discriminating HIUERR reports.
    304 	 */
    305 	uint32_t	ah_fatalState[6];	/* AR_ISR+shadow regs */
    306 	int		ah_rxornIsFatal;	/* how to treat HAL_INT_RXORN */
    307 };
    308 
    309 #define	AH_PRIVATE(_ah)	((struct ath_hal_private *)(_ah))
    310 
    311 #define	ath_hal_getChannelEdges(_ah, _cf, _lc, _hc) \
    312 	AH_PRIVATE(_ah)->ah_getChannelEdges(_ah, _cf, _lc, _hc)
    313 #define	ath_hal_getWirelessModes(_ah) \
    314 	AH_PRIVATE(_ah)->ah_getWirelessModes(_ah)
    315 #define	ath_hal_eepromRead(_ah, _off, _data) \
    316 	AH_PRIVATE(_ah)->ah_eepromRead(_ah, _off, _data)
    317 #define	ath_hal_eepromWrite(_ah, _off, _data) \
    318 	AH_PRIVATE(_ah)->ah_eepromWrite(_ah, _off, _data)
    319 #define	ath_hal_gpioCfgOutput(_ah, _gpio, _type) \
    320 	AH_PRIVATE(_ah)->ah_gpioCfgOutput(_ah, _gpio, _type)
    321 #define	ath_hal_gpioCfgInput(_ah, _gpio) \
    322 	AH_PRIVATE(_ah)->ah_gpioCfgInput(_ah, _gpio)
    323 #define	ath_hal_gpioGet(_ah, _gpio) \
    324 	AH_PRIVATE(_ah)->ah_gpioGet(_ah, _gpio)
    325 #define	ath_hal_gpioSet(_ah, _gpio, _val) \
    326 	AH_PRIVATE(_ah)->ah_gpioGet(_ah, _gpio, _val)
    327 #define	ath_hal_gpioSetIntr(_ah, _gpio, _ilevel) \
    328 	AH_PRIVATE(_ah)->ah_gpioSetIntr(_ah, _gpio, _ilevel)
    329 #define	ath_hal_getpowerlimits(_ah, _chans, _nchan) \
    330 	AH_PRIVATE(_ah)->ah_getChipPowerLimits(_ah, _chans, _nchan)
    331 #define ath_hal_getNfAdjust(_ah, _c) \
    332 	AH_PRIVATE(_ah)->ah_getNfAdjust(_ah, _c)
    333 #define	ath_hal_getNoiseFloor(_ah, _nfArray) \
    334 	AH_PRIVATE(_ah)->ah_getNoiseFloor(_ah, _nfArray)
    335 #define	ath_hal_configPCIE(_ah, _reset) \
    336 	(_ah)->ah_configPCIE(_ah, _reset)
    337 #define	ath_hal_disablePCIE(_ah) \
    338 	(_ah)->ah_disablePCIE(_ah)
    339 #define	ath_hal_setInterrupts(_ah, _mask) \
    340 	(_ah)->ah_setInterrupts(_ah, _mask)
    341 
    342 #define	ath_hal_eepromDetach(_ah)			\
    343 do {							\
    344 	if (AH_PRIVATE(_ah)->ah_eepromDetach != NULL)	\
    345 		AH_PRIVATE(_ah)->ah_eepromDetach(_ah);	\
    346 } while (/*CONSTCOND*/0)
    347 #define	ath_hal_eepromGet(_ah, _param, _val) \
    348 	AH_PRIVATE(_ah)->ah_eepromGet(_ah, _param, _val)
    349 #define	ath_hal_eepromSet(_ah, _param, _val) \
    350 	AH_PRIVATE(_ah)->ah_eepromSet(_ah, _param, _val)
    351 #define	ath_hal_eepromGetFlag(_ah, _param) \
    352 	(AH_PRIVATE(_ah)->ah_eepromGet(_ah, _param, AH_NULL) == HAL_OK)
    353 #define ath_hal_getSpurChan(_ah, _ix, _is2G) \
    354 	AH_PRIVATE(_ah)->ah_getSpurChan(_ah, _ix, _is2G)
    355 #define	ath_hal_eepromDiag(_ah, _request, _a, _asize, _r, _rsize) \
    356 	AH_PRIVATE(_ah)->ah_eepromDiag(_ah, _request, _a, _asize,  _r, _rsize)
    357 
    358 #if !defined(_NET_IF_IEEE80211_H_) && !defined(_NET80211__IEEE80211_H_)
    359 /*
    360  * Stuff that would naturally come from _ieee80211.h
    361  */
    362 #define	IEEE80211_ADDR_LEN		6
    363 
    364 #define	IEEE80211_WEP_KEYLEN			5	/* 40bit */
    365 #define	IEEE80211_WEP_IVLEN			3	/* 24bit */
    366 #define	IEEE80211_WEP_KIDLEN			1	/* 1 octet */
    367 #define	IEEE80211_WEP_CRCLEN			4	/* CRC-32 */
    368 
    369 #define	IEEE80211_CRC_LEN			4
    370 
    371 #define	IEEE80211_MTU				1500
    372 #define	IEEE80211_MAX_LEN			(2300 + IEEE80211_CRC_LEN + \
    373     (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN))
    374 
    375 enum {
    376 	IEEE80211_T_DS,			/* direct sequence spread spectrum */
    377 	IEEE80211_T_FH,			/* frequency hopping */
    378 	IEEE80211_T_OFDM,		/* frequency division multiplexing */
    379 	IEEE80211_T_TURBO,		/* high rate DS */
    380 	IEEE80211_T_HT,			/* HT - full GI */
    381 };
    382 #define	IEEE80211_T_CCK	IEEE80211_T_DS	/* more common nomenclatur */
    383 #endif /* _NET_IF_IEEE80211_H_ */
    384 
    385 /* NB: these are defined privately until XR support is announced */
    386 enum {
    387 	ATHEROS_T_XR	= IEEE80211_T_HT+1,	/* extended range */
    388 };
    389 
    390 #define HAL_TXQ_USE_LOCKOUT_BKOFF_DIS	0x00000001
    391 
    392 #define INIT_AIFS		2
    393 #define INIT_CWMIN		15
    394 #define INIT_CWMIN_11B		31
    395 #define INIT_CWMAX		1023
    396 #define INIT_SH_RETRY		10
    397 #define INIT_LG_RETRY		10
    398 #define INIT_SSH_RETRY		32
    399 #define INIT_SLG_RETRY		32
    400 
    401 typedef struct {
    402 	uint32_t	tqi_ver;		/* HAL TXQ verson */
    403 	HAL_TX_QUEUE	tqi_type;		/* hw queue type*/
    404 	HAL_TX_QUEUE_SUBTYPE tqi_subtype;	/* queue subtype, if applicable */
    405 	HAL_TX_QUEUE_FLAGS tqi_qflags;		/* queue flags */
    406 	uint32_t	tqi_priority;
    407 	uint32_t	tqi_aifs;		/* aifs */
    408 	uint32_t	tqi_cwmin;		/* cwMin */
    409 	uint32_t	tqi_cwmax;		/* cwMax */
    410 	uint16_t	tqi_shretry;		/* frame short retry limit */
    411 	uint16_t	tqi_lgretry;		/* frame long retry limit */
    412 	uint32_t	tqi_cbrPeriod;
    413 	uint32_t	tqi_cbrOverflowLimit;
    414 	uint32_t	tqi_burstTime;
    415 	uint32_t	tqi_readyTime;
    416 	uint32_t	tqi_physCompBuf;
    417 	uint32_t	tqi_intFlags;		/* flags for internal use */
    418 } HAL_TX_QUEUE_INFO;
    419 
    420 extern	HAL_BOOL ath_hal_setTxQProps(struct ath_hal *ah,
    421 		HAL_TX_QUEUE_INFO *qi, const HAL_TXQ_INFO *qInfo);
    422 extern	HAL_BOOL ath_hal_getTxQProps(struct ath_hal *ah,
    423 		HAL_TXQ_INFO *qInfo, const HAL_TX_QUEUE_INFO *qi);
    424 
    425 typedef enum {
    426 	HAL_ANI_PRESENT,			/* is ANI support present */
    427 	HAL_ANI_NOISE_IMMUNITY_LEVEL,		/* set level */
    428 	HAL_ANI_OFDM_WEAK_SIGNAL_DETECTION,	/* enable/disable */
    429 	HAL_ANI_CCK_WEAK_SIGNAL_THR,		/* enable/disable */
    430 	HAL_ANI_FIRSTEP_LEVEL,			/* set level */
    431 	HAL_ANI_SPUR_IMMUNITY_LEVEL,		/* set level */
    432 	HAL_ANI_MODE = 6,	/* 0 => manual, 1 => auto (XXX do not change) */
    433 	HAL_ANI_PHYERR_RESET,			/* reset phy error stats */
    434 } HAL_ANI_CMD;
    435 
    436 #define	HAL_SPUR_VAL_MASK		0x3FFF
    437 #define	HAL_SPUR_CHAN_WIDTH		87
    438 #define	HAL_BIN_WIDTH_BASE_100HZ	3125
    439 #define	HAL_BIN_WIDTH_TURBO_100HZ	6250
    440 #define	HAL_MAX_BINS_ALLOWED		28
    441 
    442 /*
    443  * A    = 5GHZ|OFDM
    444  * T    = 5GHZ|OFDM|TURBO
    445  *
    446  * IS_CHAN_A(T) will return TRUE.  This is probably
    447  * not the default behavior we want.  We should migrate to a better mask --
    448  * perhaps CHANNEL_ALL.
    449  *
    450  * For now, IS_CHAN_G() masks itself with CHANNEL_108G.
    451  *
    452  */
    453 
    454 #define	IS_CHAN_A(_c)	(((_c)->channelFlags & CHANNEL_A) == CHANNEL_A)
    455 #define	IS_CHAN_B(_c)	(((_c)->channelFlags & CHANNEL_B) == CHANNEL_B)
    456 #define	IS_CHAN_G(_c)	(((_c)->channelFlags & (CHANNEL_108G|CHANNEL_G)) == CHANNEL_G)
    457 #define	IS_CHAN_108G(_c)(((_c)->channelFlags & CHANNEL_108G) == CHANNEL_108G)
    458 #define	IS_CHAN_T(_c)	(((_c)->channelFlags & CHANNEL_T) == CHANNEL_T)
    459 #define	IS_CHAN_PUREG(_c) \
    460 	(((_c)->channelFlags & CHANNEL_PUREG) == CHANNEL_PUREG)
    461 
    462 #define	IS_CHAN_TURBO(_c)	(((_c)->channelFlags & CHANNEL_TURBO) != 0)
    463 #define	IS_CHAN_CCK(_c)		(((_c)->channelFlags & CHANNEL_CCK) != 0)
    464 #define	IS_CHAN_OFDM(_c)	(((_c)->channelFlags & CHANNEL_OFDM) != 0)
    465 #define	IS_CHAN_5GHZ(_c)	(((_c)->channelFlags & CHANNEL_5GHZ) != 0)
    466 #define	IS_CHAN_2GHZ(_c)	(((_c)->channelFlags & CHANNEL_2GHZ) != 0)
    467 #define	IS_CHAN_PASSIVE(_c)	(((_c)->channelFlags & CHANNEL_PASSIVE) != 0)
    468 #define	IS_CHAN_HALF_RATE(_c)	(((_c)->channelFlags & CHANNEL_HALF) != 0)
    469 #define	IS_CHAN_QUARTER_RATE(_c) (((_c)->channelFlags & CHANNEL_QUARTER) != 0)
    470 
    471 #define	IS_CHAN_IN_PUBLIC_SAFETY_BAND(_c) ((_c) > 4940 && (_c) < 4990)
    472 
    473 #define	CHANNEL_HT40		(CHANNEL_HT40PLUS | CHANNEL_HT40MINUS)
    474 #define	CHANNEL_HT		(CHANNEL_HT20 | CHANNEL_HT40)
    475 #define	IS_CHAN_HT(_c)		(((_c)->channelFlags & CHANNEL_HT) != 0)
    476 #define	IS_CHAN_HT20(_c)	(((_c)->channelFlags & CHANNEL_HT) == CHANNEL_HT20)
    477 #define	IS_CHAN_HT40(_c)	(((_c)->channelFlags & CHANNEL_HT40) != 0)
    478 
    479 /*
    480  * Deduce if the host cpu has big- or litt-endian byte order.
    481  */
    482 static __inline__ int
    483 isBigEndian(void)
    484 {
    485 	union {
    486 		int32_t i;
    487 		char c[4];
    488 	} u;
    489 	u.i = 1;
    490 	return (u.c[0] == 0);
    491 }
    492 
    493 /* unalligned little endian access */
    494 #define LE_READ_2(p)							\
    495 	((uint16_t)							\
    496 	 ((((const uint8_t *)(p))[0]    ) | (((const uint8_t *)(p))[1]<< 8)))
    497 #define LE_READ_4(p)							\
    498 	((uint32_t)							\
    499 	 ((((const uint8_t *)(p))[0]    ) | (((const uint8_t *)(p))[1]<< 8) |\
    500 	  (((const uint8_t *)(p))[2]<<16) | (((const uint8_t *)(p))[3]<<24)))
    501 
    502 /*
    503  * Register manipulation macros that expect bit field defines
    504  * to follow the convention that an _S suffix is appended for
    505  * a shift count, while the field mask has no suffix.
    506  */
    507 #define	SM(_v, _f)	(((_v) << _f##_S) & (_f))
    508 #define	MS(_v, _f)	(((_v) & (_f)) >> _f##_S)
    509 #define	OS_REG_RMW_FIELD(_a, _r, _f, _v) \
    510 	OS_REG_WRITE(_a, _r, \
    511 		(OS_REG_READ(_a, _r) &~ (_f)) | (((_v) << _f##_S) & (_f)))
    512 #define	OS_REG_SET_BIT(_a, _r, _f) \
    513 	OS_REG_WRITE(_a, _r, OS_REG_READ(_a, _r) | (_f))
    514 #define	OS_REG_CLR_BIT(_a, _r, _f) \
    515 	OS_REG_WRITE(_a, _r, OS_REG_READ(_a, _r) &~ (_f))
    516 
    517 /*
    518  * Regulatory domain support.
    519  */
    520 
    521 /*
    522  * Return the max allowed antenna gain based on the current
    523  * regulatory domain.
    524  */
    525 extern	u_int ath_hal_getantennareduction(struct ath_hal *,
    526 		HAL_CHANNEL *, u_int twiceGain);
    527 /*
    528  * Return the test group for the specific channel based on
    529  * the current regulator domain.
    530  */
    531 extern	u_int ath_hal_getctl(struct ath_hal *, HAL_CHANNEL *);
    532 /*
    533  * Return whether or not a noise floor check is required
    534  * based on the current regulatory domain for the specified
    535  * channel.
    536  */
    537 extern	HAL_BOOL ath_hal_getnfcheckrequired(struct ath_hal *, HAL_CHANNEL *);
    538 
    539 /*
    540  * Map a public channel definition to the corresponding
    541  * internal data structure.  This implicitly specifies
    542  * whether or not the specified channel is ok to use
    543  * based on the current regulatory domain constraints.
    544  */
    545 extern	HAL_CHANNEL_INTERNAL *ath_hal_checkchannel(struct ath_hal *,
    546 		const HAL_CHANNEL *);
    547 
    548 /* system-configurable parameters */
    549 extern	int ath_hal_dma_beacon_response_time;	/* in TU's */
    550 extern	int ath_hal_sw_beacon_response_time;	/* in TU's */
    551 extern	int ath_hal_additional_swba_backoff;	/* in TU's */
    552 
    553 /* wait for the register contents to have the specified value */
    554 extern	HAL_BOOL ath_hal_wait(struct ath_hal *, u_int reg,
    555 		uint32_t mask, uint32_t val);
    556 
    557 /* return the first n bits in val reversed */
    558 extern	uint32_t ath_hal_reverseBits(uint32_t val, uint32_t n);
    559 
    560 /* printf interfaces */
    561 extern	void ath_hal_printf(struct ath_hal *, const char*, ...)
    562 		__printflike(2,3);
    563 extern	void ath_hal_vprintf(struct ath_hal *, const char*, va_list)
    564 		__printflike(2, 0);
    565 extern	const char* ath_hal_ether_sprintf(const uint8_t *mac);
    566 
    567 /* allocate and free memory */
    568 extern	void *ath_hal_malloc(size_t);
    569 extern	void ath_hal_free(void *);
    570 
    571 /* common debugging interfaces */
    572 #ifdef AH_DEBUG
    573 #include "ah_debug.h"
    574 extern	int ath_hal_debug;
    575 extern	void HALDEBUG(struct ath_hal *ah, u_int mask, const char* fmt, ...)
    576 	__printflike(3,4);
    577 #else
    578 #define HALDEBUG(_ah, __m, _fmt, ...)
    579 #endif /* AH_DEBUG */
    580 
    581 /*
    582  * Register logging definitions shared with ardecode.
    583  */
    584 #include "ah_decode.h"
    585 
    586 /*
    587  * Common assertion interface.  Note: it is a bad idea to generate
    588  * an assertion failure for any recoverable event.  Instead catch
    589  * the violation and, if possible, fix it up or recover from it; either
    590  * with an error return value or a diagnostic messages.  System software
    591  * does not panic unless the situation is hopeless.
    592  */
    593 #ifdef AH_ASSERT
    594 extern	void ath_hal_assert_failed(const char* filename,
    595 		int lineno, const char* msg);
    596 
    597 #define	HALASSERT(_x) do {					\
    598 	if (!(_x)) {						\
    599 		ath_hal_assert_failed(__FILE__, __LINE__, #_x);	\
    600 	}							\
    601 } while (0)
    602 #else
    603 #define	HALASSERT(_x)
    604 #endif /* AH_ASSERT */
    605 
    606 /*
    607  * Return the h/w frequency for a channel. This may be
    608  * different from ic_freq if this is a GSM device that
    609  * takes 2.4GHz frequencies and down-converts them.
    610  */
    611 static OS_INLINE uint16_t
    612 ath_hal_gethwchannel(struct ath_hal *ah, const HAL_CHANNEL_INTERNAL *c)
    613 {
    614 	return ath_hal_checkchannel(ah, (const HAL_CHANNEL *)c)->channel;
    615 }
    616 
    617 /*
    618  * Convert between microseconds and core system clocks.
    619  */
    620 extern	u_int ath_hal_mac_clks(struct ath_hal *ah, u_int usecs);
    621 extern	u_int ath_hal_mac_usec(struct ath_hal *ah, u_int clks);
    622 
    623 /*
    624  * Generic get/set capability support.  Each chip overrides
    625  * this routine to support chip-specific capabilities.
    626  */
    627 extern	HAL_STATUS ath_hal_getcapability(struct ath_hal *ah,
    628 		HAL_CAPABILITY_TYPE type, uint32_t capability,
    629 		uint32_t *result);
    630 extern	HAL_BOOL ath_hal_setcapability(struct ath_hal *ah,
    631 		HAL_CAPABILITY_TYPE type, uint32_t capability,
    632 		uint32_t setting, HAL_STATUS *status);
    633 
    634 /*
    635  * Diagnostic interface.  This is an open-ended interface that
    636  * is opaque to applications.  Diagnostic programs use this to
    637  * retrieve internal data structures, etc.  There is no guarantee
    638  * that calling conventions for calls other than HAL_DIAG_REVS
    639  * are stable between HAL releases; a diagnostic application must
    640  * use the HAL revision information to deal with ABI/API differences.
    641  *
    642  * NB: do not renumber these, certain codes are publicly used.
    643  */
    644 enum {
    645 	HAL_DIAG_REVS		= 0,	/* MAC/PHY/Radio revs */
    646 	HAL_DIAG_EEPROM		= 1,	/* EEPROM contents */
    647 	HAL_DIAG_EEPROM_EXP_11A	= 2,	/* EEPROM 5112 power exp for 11a */
    648 	HAL_DIAG_EEPROM_EXP_11B	= 3,	/* EEPROM 5112 power exp for 11b */
    649 	HAL_DIAG_EEPROM_EXP_11G	= 4,	/* EEPROM 5112 power exp for 11g */
    650 	HAL_DIAG_ANI_CURRENT	= 5,	/* ANI current channel state */
    651 	HAL_DIAG_ANI_OFDM	= 6,	/* ANI OFDM timing error stats */
    652 	HAL_DIAG_ANI_CCK	= 7,	/* ANI CCK timing error stats */
    653 	HAL_DIAG_ANI_STATS	= 8,	/* ANI statistics */
    654 	HAL_DIAG_RFGAIN		= 9,	/* RfGain GAIN_VALUES */
    655 	HAL_DIAG_RFGAIN_CURSTEP	= 10,	/* RfGain GAIN_OPTIMIZATION_STEP */
    656 	HAL_DIAG_PCDAC		= 11,	/* PCDAC table */
    657 	HAL_DIAG_TXRATES	= 12,	/* Transmit rate table */
    658 	HAL_DIAG_REGS		= 13,	/* Registers */
    659 	HAL_DIAG_ANI_CMD	= 14,	/* ANI issue command (XXX do not change!) */
    660 	HAL_DIAG_SETKEY		= 15,	/* Set keycache backdoor */
    661 	HAL_DIAG_RESETKEY	= 16,	/* Reset keycache backdoor */
    662 	HAL_DIAG_EEREAD		= 17,	/* Read EEPROM word */
    663 	HAL_DIAG_EEWRITE	= 18,	/* Write EEPROM word */
    664 	/* 19 was HAL_DIAG_TXCONT, 20-23 were for radar */
    665 	HAL_DIAG_REGREAD        = 24,   /* Reg reads */
    666 	HAL_DIAG_REGWRITE       = 25,   /* Reg writes */
    667 	HAL_DIAG_GET_REGBASE    = 26,   /* Get register base */
    668 	HAL_DIAG_RDWRITE	= 27,	/* Write regulatory domain */
    669 	HAL_DIAG_RDREAD		= 28,	/* Get regulatory domain */
    670 	HAL_DIAG_FATALERR	= 29,	/* Read cached interrupt state */
    671 	HAL_DIAG_11NCOMPAT	= 30,	/* 11n compatibility tweaks */
    672 	HAL_DIAG_ANI_PARAMS	= 31,	/* ANI noise immunity parameters */
    673 	HAL_DIAG_CHECK_HANGS	= 32,	/* check h/w hangs */
    674 };
    675 
    676 enum {
    677     HAL_BB_HANG_DFS		= 0x0001,
    678     HAL_BB_HANG_RIFS		= 0x0002,
    679     HAL_BB_HANG_RX_CLEAR	= 0x0004,
    680     HAL_BB_HANG_UNKNOWN		= 0x0080,
    681 
    682     HAL_MAC_HANG_SIG1		= 0x0100,
    683     HAL_MAC_HANG_SIG2		= 0x0200,
    684     HAL_MAC_HANG_UNKNOWN	= 0x8000,
    685 
    686     HAL_BB_HANGS = HAL_BB_HANG_DFS
    687 		 | HAL_BB_HANG_RIFS
    688 		 | HAL_BB_HANG_RX_CLEAR
    689 		 | HAL_BB_HANG_UNKNOWN,
    690     HAL_MAC_HANGS = HAL_MAC_HANG_SIG1
    691 		 | HAL_MAC_HANG_SIG2
    692 		 | HAL_MAC_HANG_UNKNOWN,
    693 };
    694 
    695 /*
    696  * Device revision information.
    697  */
    698 typedef struct {
    699 	uint16_t	ah_devid;		/* PCI device ID */
    700 	uint16_t	ah_subvendorid;		/* PCI subvendor ID */
    701 	uint32_t	ah_macVersion;		/* MAC version id */
    702 	uint16_t	ah_macRev;		/* MAC revision */
    703 	uint16_t	ah_phyRev;		/* PHY revision */
    704 	uint16_t	ah_analog5GhzRev;	/* 2GHz radio revision */
    705 	uint16_t	ah_analog2GhzRev;	/* 5GHz radio revision */
    706 } HAL_REVS;
    707 
    708 /*
    709  * Argument payload for HAL_DIAG_SETKEY.
    710  */
    711 typedef struct {
    712 	HAL_KEYVAL	dk_keyval;
    713 	uint16_t	dk_keyix;	/* key index */
    714 	uint8_t		dk_mac[IEEE80211_ADDR_LEN];
    715 	int		dk_xor;		/* XOR key data */
    716 } HAL_DIAG_KEYVAL;
    717 
    718 /*
    719  * Argument payload for HAL_DIAG_EEWRITE.
    720  */
    721 typedef struct {
    722 	uint16_t	ee_off;		/* eeprom offset */
    723 	uint16_t	ee_data;	/* write data */
    724 } HAL_DIAG_EEVAL;
    725 
    726 
    727 typedef struct {
    728 	u_int offset;		/* reg offset */
    729 	uint32_t val;		/* reg value  */
    730 } HAL_DIAG_REGVAL;
    731 
    732 /*
    733  * 11n compatibility tweaks.
    734  */
    735 #define	HAL_DIAG_11N_SERVICES	0x00000003
    736 #define	HAL_DIAG_11N_SERVICES_S	0
    737 #define	HAL_DIAG_11N_TXSTOMP	0x0000000c
    738 #define	HAL_DIAG_11N_TXSTOMP_S	2
    739 
    740 typedef struct {
    741 	int		maxNoiseImmunityLevel;	/* [0..4] */
    742 	int		totalSizeDesired[5];
    743 	int		coarseHigh[5];
    744 	int		coarseLow[5];
    745 	int		firpwr[5];
    746 
    747 	int		maxSpurImmunityLevel;	/* [0..7] */
    748 	int		cycPwrThr1[8];
    749 
    750 	int		maxFirstepLevel;	/* [0..2] */
    751 	int		firstep[3];
    752 
    753 	uint32_t	ofdmTrigHigh;
    754 	uint32_t	ofdmTrigLow;
    755 	int32_t		cckTrigHigh;
    756 	int32_t		cckTrigLow;
    757 	int32_t		rssiThrLow;
    758 	int32_t		rssiThrHigh;
    759 
    760 	int		period;			/* update listen period */
    761 } HAL_ANI_PARAMS;
    762 
    763 extern	HAL_BOOL ath_hal_getdiagstate(struct ath_hal *ah, int request,
    764 			const void *args, uint32_t argsize,
    765 			void **result, uint32_t *resultsize);
    766 
    767 /*
    768  * Setup a h/w rate table for use.
    769  */
    770 extern	void ath_hal_setupratetable(struct ath_hal *ah, HAL_RATE_TABLE *rt);
    771 
    772 /*
    773  * Common routine for implementing getChanNoise api.
    774  */
    775 extern	int16_t ath_hal_getChanNoise(struct ath_hal *ah, HAL_CHANNEL *chan);
    776 
    777 /*
    778  * Initialization support.
    779  */
    780 typedef struct {
    781 	const uint32_t	*data;
    782 	int		rows, cols;
    783 } HAL_INI_ARRAY;
    784 
    785 #define	HAL_INI_INIT(_ia, _data, _cols) do {			\
    786 	(_ia)->data = (const uint32_t *)(_data);		\
    787 	(_ia)->rows = sizeof(_data) / sizeof((_data)[0]);	\
    788 	(_ia)->cols = (_cols);					\
    789 } while (0)
    790 #define	HAL_INI_VAL(_ia, _r, _c) \
    791 	((_ia)->data[((_r)*(_ia)->cols) + (_c)])
    792 
    793 /*
    794  * OS_DELAY() does a PIO READ on the PCI bus which allows
    795  * other cards' DMA reads to complete in the middle of our reset.
    796  */
    797 #define DMA_YIELD(x) do {		\
    798 	if ((++(x) % 64) == 0)		\
    799 		OS_DELAY(1);		\
    800 } while (0)
    801 
    802 #define HAL_INI_WRITE_ARRAY(ah, regArray, col, regWr) do {             	\
    803 	int r;								\
    804 	for (r = 0; r < N(regArray); r++) {				\
    805 		OS_REG_WRITE(ah, (regArray)[r][0], (regArray)[r][col]);	\
    806 		DMA_YIELD(regWr);					\
    807 	}								\
    808 } while (0)
    809 
    810 #define HAL_INI_WRITE_BANK(ah, regArray, bankData, regWr) do {		\
    811 	int r;								\
    812 	for (r = 0; r < N(regArray); r++) {				\
    813 		OS_REG_WRITE(ah, (regArray)[r][0], (bankData)[r]);	\
    814 		DMA_YIELD(regWr);					\
    815 	}								\
    816 } while (0)
    817 
    818 extern	int ath_hal_ini_write(struct ath_hal *ah, const HAL_INI_ARRAY *ia,
    819 		int col, int regWr);
    820 extern	void ath_hal_ini_bank_setup(uint32_t data[], const HAL_INI_ARRAY *ia,
    821 		int col);
    822 extern	int ath_hal_ini_bank_write(struct ath_hal *ah, const HAL_INI_ARRAY *ia,
    823 		const uint32_t data[], int regWr);
    824 
    825 #define	WLAN_CTRL_FRAME_SIZE	(2+2+6+4)	/* ACK+FCS */
    826 #endif /* _ATH_AH_INTERAL_H_ */
    827