ah_internal.h revision 239802
1/*
2 * Copyright (c) 2002-2009 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 * $FreeBSD: head/sys/dev/ath/ath_hal/ah_internal.h 239802 2012-08-29 04:09:54Z adrian $
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#include <net80211/_ieee80211.h>
31#include "opt_ah.h"			/* needed for AH_SUPPORT_AR5416 */
32
33#ifndef	AH_SUPPORT_AR5416
34#define	AH_SUPPORT_AR5416	1
35#endif
36
37#ifndef NBBY
38#define	NBBY	8			/* number of bits/byte */
39#endif
40
41#ifndef roundup
42#define	roundup(x, y)	((((x)+((y)-1))/(y))*(y))  /* to any y */
43#endif
44#ifndef howmany
45#define	howmany(x, y)	(((x)+((y)-1))/(y))
46#endif
47
48#ifndef offsetof
49#define	offsetof(type, field)	((size_t)(&((type *)0)->field))
50#endif
51
52typedef struct {
53	uint16_t	start;		/* first register */
54	uint16_t	end;		/* ending register or zero */
55} HAL_REGRANGE;
56
57typedef struct {
58	uint32_t	addr;		/* regiser address/offset */
59	uint32_t	value;		/* value to write */
60} HAL_REGWRITE;
61
62/*
63 * Transmit power scale factor.
64 *
65 * NB: This is not public because we want to discourage the use of
66 *     scaling; folks should use the tx power limit interface.
67 */
68typedef enum {
69	HAL_TP_SCALE_MAX	= 0,		/* no scaling (default) */
70	HAL_TP_SCALE_50		= 1,		/* 50% of max (-3 dBm) */
71	HAL_TP_SCALE_25		= 2,		/* 25% of max (-6 dBm) */
72	HAL_TP_SCALE_12		= 3,		/* 12% of max (-9 dBm) */
73	HAL_TP_SCALE_MIN	= 4,		/* min, but still on */
74} HAL_TP_SCALE;
75
76typedef enum {
77 	HAL_CAP_RADAR		= 0,		/* Radar capability */
78 	HAL_CAP_AR		= 1,		/* AR capability */
79} HAL_PHYDIAG_CAPS;
80
81/*
82 * Enable/disable strong signal fast diversity
83 */
84#define	HAL_CAP_STRONG_DIV		2
85
86/*
87 * Each chip or class of chips registers to offer support.
88 */
89struct ath_hal_chip {
90	const char	*name;
91	const char	*(*probe)(uint16_t vendorid, uint16_t devid);
92	struct ath_hal	*(*attach)(uint16_t devid, HAL_SOFTC,
93			    HAL_BUS_TAG, HAL_BUS_HANDLE, uint16_t *eepromdata,
94			    HAL_STATUS *error);
95};
96#ifndef AH_CHIP
97#define	AH_CHIP(_name, _probe, _attach)				\
98static struct ath_hal_chip _name##_chip = {			\
99	.name		= #_name,				\
100	.probe		= _probe,				\
101	.attach		= _attach				\
102};								\
103OS_DATA_SET(ah_chips, _name##_chip)
104#endif
105
106/*
107 * Each RF backend registers to offer support; this is mostly
108 * used by multi-chip 5212 solutions.  Single-chip solutions
109 * have a fixed idea about which RF to use.
110 */
111struct ath_hal_rf {
112	const char	*name;
113	HAL_BOOL	(*probe)(struct ath_hal *ah);
114	HAL_BOOL	(*attach)(struct ath_hal *ah, HAL_STATUS *ecode);
115};
116#ifndef AH_RF
117#define	AH_RF(_name, _probe, _attach)				\
118static struct ath_hal_rf _name##_rf = {				\
119	.name		= __STRING(_name),			\
120	.probe		= _probe,				\
121	.attach		= _attach				\
122};								\
123OS_DATA_SET(ah_rfs, _name##_rf)
124#endif
125
126struct ath_hal_rf *ath_hal_rfprobe(struct ath_hal *ah, HAL_STATUS *ecode);
127
128/*
129 * Maximum number of internal channels.  Entries are per unique
130 * frequency so this might be need to be increased to handle all
131 * usage cases; typically no more than 32 are really needed but
132 * dynamically allocating the data structures is a bit painful
133 * right now.
134 */
135#ifndef AH_MAXCHAN
136#define	AH_MAXCHAN	96
137#endif
138
139/*
140 * Internal per-channel state.  These are found
141 * using ic_devdata in the ieee80211_channel.
142 */
143typedef struct {
144	uint16_t	channel;	/* h/w frequency, NB: may be mapped */
145	uint8_t		privFlags;
146#define	CHANNEL_IQVALID		0x01	/* IQ calibration valid */
147#define	CHANNEL_ANI_INIT	0x02	/* ANI state initialized */
148#define	CHANNEL_ANI_SETUP	0x04	/* ANI state setup */
149#define	CHANNEL_MIMO_NF_VALID	0x04	/* Mimo NF values are valid */
150	uint8_t		calValid;	/* bitmask of cal types */
151	int8_t		iCoff;
152	int8_t		qCoff;
153	int16_t		rawNoiseFloor;
154	int16_t		noiseFloorAdjust;
155#ifdef	AH_SUPPORT_AR5416
156	int16_t		noiseFloorCtl[AH_MIMO_MAX_CHAINS];
157	int16_t		noiseFloorExt[AH_MIMO_MAX_CHAINS];
158#endif	/* AH_SUPPORT_AR5416 */
159	uint16_t	mainSpur;	/* cached spur value for this channel */
160} HAL_CHANNEL_INTERNAL;
161
162/* channel requires noise floor check */
163#define	CHANNEL_NFCREQUIRED	IEEE80211_CHAN_PRIV0
164
165/* all full-width channels */
166#define	IEEE80211_CHAN_ALLFULL \
167	(IEEE80211_CHAN_ALL - (IEEE80211_CHAN_HALF | IEEE80211_CHAN_QUARTER))
168#define	IEEE80211_CHAN_ALLTURBOFULL \
169	(IEEE80211_CHAN_ALLTURBO - \
170	 (IEEE80211_CHAN_HALF | IEEE80211_CHAN_QUARTER))
171
172typedef struct {
173	uint32_t	halChanSpreadSupport 		: 1,
174			halSleepAfterBeaconBroken	: 1,
175			halCompressSupport		: 1,
176			halBurstSupport			: 1,
177			halFastFramesSupport		: 1,
178			halChapTuningSupport		: 1,
179			halTurboGSupport		: 1,
180			halTurboPrimeSupport		: 1,
181			halMicAesCcmSupport		: 1,
182			halMicCkipSupport		: 1,
183			halMicTkipSupport		: 1,
184			halTkipMicTxRxKeySupport	: 1,
185			halCipherAesCcmSupport		: 1,
186			halCipherCkipSupport		: 1,
187			halCipherTkipSupport		: 1,
188			halPSPollBroken			: 1,
189			halVEOLSupport			: 1,
190			halBssIdMaskSupport		: 1,
191			halMcastKeySrchSupport		: 1,
192			halTsfAddSupport		: 1,
193			halChanHalfRate			: 1,
194			halChanQuarterRate		: 1,
195			halHTSupport			: 1,
196			halHTSGI20Support		: 1,
197			halRfSilentSupport		: 1,
198			halHwPhyCounterSupport		: 1,
199			halWowSupport			: 1,
200			halWowMatchPatternExact		: 1,
201			halAutoSleepSupport		: 1,
202			halFastCCSupport		: 1,
203			halBtCoexSupport		: 1;
204	uint32_t	halRxStbcSupport		: 1,
205			halTxStbcSupport		: 1,
206			halGTTSupport			: 1,
207			halCSTSupport			: 1,
208			halRifsRxSupport		: 1,
209			halRifsTxSupport		: 1,
210			hal4AddrAggrSupport		: 1,
211			halExtChanDfsSupport		: 1,
212			halUseCombinedRadarRssi		: 1,
213			halForcePpmSupport		: 1,
214			halEnhancedPmSupport		: 1,
215			halEnhancedDfsSupport		: 1,
216			halMbssidAggrSupport		: 1,
217			halBssidMatchSupport		: 1,
218			hal4kbSplitTransSupport		: 1,
219			halHasRxSelfLinkedTail		: 1,
220			halSupportsFastClock5GHz	: 1,
221			halHasLongRxDescTsf		: 1,
222			halHasBBReadWar			: 1,
223			halSerialiseRegWar		: 1,
224			halMciSupport			: 1,
225			halRxTxAbortSupport		: 1,
226			halPaprdEnabled			: 1,
227			halHasUapsdSupport		: 1,
228			halWpsPushButtonSupport		: 1,
229			halBtCoexApsmWar		: 1,
230			halGenTimerSupport		: 1,
231			halLDPCSupport			: 1,
232			halHwBeaconProcSupport		: 1,
233			halEnhancedDmaSupport		: 1;
234	uint32_t	halIsrRacSupport		: 1,
235			halApmEnable			: 1,
236			halIntrMitigation		: 1,
237			hal49GhzSupport			: 1,
238			halAntDivCombSupport		: 1;
239
240	uint32_t	halWirelessModes;
241	uint16_t	halTotalQueues;
242	uint16_t	halKeyCacheSize;
243	uint16_t	halLow5GhzChan, halHigh5GhzChan;
244	uint16_t	halLow2GhzChan, halHigh2GhzChan;
245	int		halTstampPrecision;
246	int		halRtsAggrLimit;
247	uint8_t		halTxChainMask;
248	uint8_t		halRxChainMask;
249	uint8_t		halNumGpioPins;
250	uint8_t		halNumAntCfg2GHz;
251	uint8_t		halNumAntCfg5GHz;
252	uint32_t	halIntrMask;
253	uint8_t		halTxStreams;
254	uint8_t		halRxStreams;
255	HAL_MFP_OPT_T	halMfpSupport;
256	int		halNumTxMaps;
257	int		halTxDescLen;
258	int		halTxStatusLen;
259	int		halRxStatusLen;
260	int		halRxHpFifoDepth;
261	int		halRxLpFifoDepth;
262	int		halNumMRRetries;
263} HAL_CAPABILITIES;
264
265struct regDomain;
266
267/*
268 * Definitions for ah_flags in ath_hal_private
269 */
270#define		AH_USE_EEPROM	0x1
271#define		AH_IS_HB63	0x2
272
273/*
274 * The ``private area'' follows immediately after the ``public area''
275 * in the data structure returned by ath_hal_attach.  Private data are
276 * used by device-independent code such as the regulatory domain support.
277 * In general, code within the HAL should never depend on data in the
278 * public area.  Instead any public data needed internally should be
279 * shadowed here.
280 *
281 * When declaring a device-specific ath_hal data structure this structure
282 * is assumed to at the front; e.g.
283 *
284 *	struct ath_hal_5212 {
285 *		struct ath_hal_private	ah_priv;
286 *		...
287 *	};
288 *
289 * It might be better to manage the method pointers in this structure
290 * using an indirect pointer to a read-only data structure but this would
291 * disallow class-style method overriding.
292 */
293struct ath_hal_private {
294	struct ath_hal	h;			/* public area */
295
296	/* NB: all methods go first to simplify initialization */
297	HAL_BOOL	(*ah_getChannelEdges)(struct ath_hal*,
298				uint16_t channelFlags,
299				uint16_t *lowChannel, uint16_t *highChannel);
300	u_int		(*ah_getWirelessModes)(struct ath_hal*);
301	HAL_BOOL	(*ah_eepromRead)(struct ath_hal *, u_int off,
302				uint16_t *data);
303	HAL_BOOL	(*ah_eepromWrite)(struct ath_hal *, u_int off,
304				uint16_t data);
305	HAL_BOOL	(*ah_getChipPowerLimits)(struct ath_hal *,
306				struct ieee80211_channel *);
307	int16_t		(*ah_getNfAdjust)(struct ath_hal *,
308				const HAL_CHANNEL_INTERNAL*);
309	void		(*ah_getNoiseFloor)(struct ath_hal *,
310				int16_t nfarray[]);
311
312	void		*ah_eeprom;		/* opaque EEPROM state */
313	uint16_t	ah_eeversion;		/* EEPROM version */
314	void		(*ah_eepromDetach)(struct ath_hal *);
315	HAL_STATUS	(*ah_eepromGet)(struct ath_hal *, int, void *);
316	HAL_STATUS	(*ah_eepromSet)(struct ath_hal *, int, int);
317	uint16_t	(*ah_getSpurChan)(struct ath_hal *, int, HAL_BOOL);
318	HAL_BOOL	(*ah_eepromDiag)(struct ath_hal *, int request,
319			    const void *args, uint32_t argsize,
320			    void **result, uint32_t *resultsize);
321
322	/*
323	 * Device revision information.
324	 */
325	uint16_t	ah_devid;		/* PCI device ID */
326	uint16_t	ah_subvendorid;		/* PCI subvendor ID */
327	uint32_t	ah_macVersion;		/* MAC version id */
328	uint16_t	ah_macRev;		/* MAC revision */
329	uint16_t	ah_phyRev;		/* PHY revision */
330	uint16_t	ah_analog5GhzRev;	/* 2GHz radio revision */
331	uint16_t	ah_analog2GhzRev;	/* 5GHz radio revision */
332	uint32_t	ah_flags;		/* misc flags */
333	uint8_t		ah_ispcie;		/* PCIE, special treatment */
334	uint8_t		ah_devType;		/* card type - CB, PCI, PCIe */
335
336	HAL_OPMODE	ah_opmode;		/* operating mode from reset */
337	const struct ieee80211_channel *ah_curchan;/* operating channel */
338	HAL_CAPABILITIES ah_caps;		/* device capabilities */
339	uint32_t	ah_diagreg;		/* user-specified AR_DIAG_SW */
340	int16_t		ah_powerLimit;		/* tx power cap */
341	uint16_t	ah_maxPowerLevel;	/* calculated max tx power */
342	u_int		ah_tpScale;		/* tx power scale factor */
343	uint32_t	ah_11nCompat;		/* 11n compat controls */
344
345	/*
346	 * State for regulatory domain handling.
347	 */
348	HAL_REG_DOMAIN	ah_currentRD;		/* EEPROM regulatory domain */
349	HAL_REG_DOMAIN	ah_currentRDext;	/* EEPROM extended regdomain flags */
350	HAL_DFS_DOMAIN	ah_dfsDomain;		/* current DFS domain */
351	HAL_CHANNEL_INTERNAL ah_channels[AH_MAXCHAN]; /* private chan state */
352	u_int		ah_nchan;		/* valid items in ah_channels */
353	const struct regDomain *ah_rd2GHz;	/* reg state for 2G band */
354	const struct regDomain *ah_rd5GHz;	/* reg state for 5G band */
355
356	uint8_t    	ah_coverageClass;   	/* coverage class */
357	/*
358	 * RF Silent handling; setup according to the EEPROM.
359	 */
360	uint16_t	ah_rfsilent;		/* GPIO pin + polarity */
361	HAL_BOOL	ah_rfkillEnabled;	/* enable/disable RfKill */
362	/*
363	 * Diagnostic support for discriminating HIUERR reports.
364	 */
365	uint32_t	ah_fatalState[6];	/* AR_ISR+shadow regs */
366	int		ah_rxornIsFatal;	/* how to treat HAL_INT_RXORN */
367};
368
369#define	AH_PRIVATE(_ah)	((struct ath_hal_private *)(_ah))
370
371#define	ath_hal_getChannelEdges(_ah, _cf, _lc, _hc) \
372	AH_PRIVATE(_ah)->ah_getChannelEdges(_ah, _cf, _lc, _hc)
373#define	ath_hal_getWirelessModes(_ah) \
374	AH_PRIVATE(_ah)->ah_getWirelessModes(_ah)
375#define	ath_hal_eepromRead(_ah, _off, _data) \
376	AH_PRIVATE(_ah)->ah_eepromRead(_ah, _off, _data)
377#define	ath_hal_eepromWrite(_ah, _off, _data) \
378	AH_PRIVATE(_ah)->ah_eepromWrite(_ah, _off, _data)
379#define	ath_hal_gpioCfgOutput(_ah, _gpio, _type) \
380	(_ah)->ah_gpioCfgOutput(_ah, _gpio, _type)
381#define	ath_hal_gpioCfgInput(_ah, _gpio) \
382	(_ah)->ah_gpioCfgInput(_ah, _gpio)
383#define	ath_hal_gpioGet(_ah, _gpio) \
384	(_ah)->ah_gpioGet(_ah, _gpio)
385#define	ath_hal_gpioSet(_ah, _gpio, _val) \
386	(_ah)->ah_gpioSet(_ah, _gpio, _val)
387#define	ath_hal_gpioSetIntr(_ah, _gpio, _ilevel) \
388	(_ah)->ah_gpioSetIntr(_ah, _gpio, _ilevel)
389#define	ath_hal_getpowerlimits(_ah, _chan) \
390	AH_PRIVATE(_ah)->ah_getChipPowerLimits(_ah, _chan)
391#define ath_hal_getNfAdjust(_ah, _c) \
392	AH_PRIVATE(_ah)->ah_getNfAdjust(_ah, _c)
393#define	ath_hal_getNoiseFloor(_ah, _nfArray) \
394	AH_PRIVATE(_ah)->ah_getNoiseFloor(_ah, _nfArray)
395#define	ath_hal_configPCIE(_ah, _reset, _poweroff) \
396	(_ah)->ah_configPCIE(_ah, _reset, _poweroff)
397#define	ath_hal_disablePCIE(_ah) \
398	(_ah)->ah_disablePCIE(_ah)
399#define	ath_hal_setInterrupts(_ah, _mask) \
400	(_ah)->ah_setInterrupts(_ah, _mask)
401
402#define ath_hal_isrfkillenabled(_ah)  \
403    (ath_hal_getcapability(_ah, HAL_CAP_RFSILENT, 1, AH_NULL) == HAL_OK)
404#define ath_hal_enable_rfkill(_ah, _v) \
405    ath_hal_setcapability(_ah, HAL_CAP_RFSILENT, 1, _v, AH_NULL)
406#define ath_hal_hasrfkill_int(_ah)  \
407    (ath_hal_getcapability(_ah, HAL_CAP_RFSILENT, 3, AH_NULL) == HAL_OK)
408
409#define	ath_hal_eepromDetach(_ah) do {				\
410	if (AH_PRIVATE(_ah)->ah_eepromDetach != AH_NULL)	\
411		AH_PRIVATE(_ah)->ah_eepromDetach(_ah);		\
412} while (0)
413#define	ath_hal_eepromGet(_ah, _param, _val) \
414	AH_PRIVATE(_ah)->ah_eepromGet(_ah, _param, _val)
415#define	ath_hal_eepromSet(_ah, _param, _val) \
416	AH_PRIVATE(_ah)->ah_eepromSet(_ah, _param, _val)
417#define	ath_hal_eepromGetFlag(_ah, _param) \
418	(AH_PRIVATE(_ah)->ah_eepromGet(_ah, _param, AH_NULL) == HAL_OK)
419#define ath_hal_getSpurChan(_ah, _ix, _is2G) \
420	AH_PRIVATE(_ah)->ah_getSpurChan(_ah, _ix, _is2G)
421#define	ath_hal_eepromDiag(_ah, _request, _a, _asize, _r, _rsize) \
422	AH_PRIVATE(_ah)->ah_eepromDiag(_ah, _request, _a, _asize,  _r, _rsize)
423
424#ifndef _NET_IF_IEEE80211_H_
425/*
426 * Stuff that would naturally come from _ieee80211.h
427 */
428#define	IEEE80211_ADDR_LEN		6
429
430#define	IEEE80211_WEP_IVLEN			3	/* 24bit */
431#define	IEEE80211_WEP_KIDLEN			1	/* 1 octet */
432#define	IEEE80211_WEP_CRCLEN			4	/* CRC-32 */
433
434#define	IEEE80211_CRC_LEN			4
435
436#define	IEEE80211_MAX_LEN			(2300 + IEEE80211_CRC_LEN + \
437    (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN))
438#endif /* _NET_IF_IEEE80211_H_ */
439
440#define HAL_TXQ_USE_LOCKOUT_BKOFF_DIS	0x00000001
441
442#define INIT_AIFS		2
443#define INIT_CWMIN		15
444#define INIT_CWMIN_11B		31
445#define INIT_CWMAX		1023
446#define INIT_SH_RETRY		10
447#define INIT_LG_RETRY		10
448#define INIT_SSH_RETRY		32
449#define INIT_SLG_RETRY		32
450
451typedef struct {
452	uint32_t	tqi_ver;		/* HAL TXQ verson */
453	HAL_TX_QUEUE	tqi_type;		/* hw queue type*/
454	HAL_TX_QUEUE_SUBTYPE tqi_subtype;	/* queue subtype, if applicable */
455	HAL_TX_QUEUE_FLAGS tqi_qflags;		/* queue flags */
456	uint32_t	tqi_priority;
457	uint32_t	tqi_aifs;		/* aifs */
458	uint32_t	tqi_cwmin;		/* cwMin */
459	uint32_t	tqi_cwmax;		/* cwMax */
460	uint16_t	tqi_shretry;		/* frame short retry limit */
461	uint16_t	tqi_lgretry;		/* frame long retry limit */
462	uint32_t	tqi_cbrPeriod;
463	uint32_t	tqi_cbrOverflowLimit;
464	uint32_t	tqi_burstTime;
465	uint32_t	tqi_readyTime;
466	uint32_t	tqi_physCompBuf;
467	uint32_t	tqi_intFlags;		/* flags for internal use */
468} HAL_TX_QUEUE_INFO;
469
470extern	HAL_BOOL ath_hal_setTxQProps(struct ath_hal *ah,
471		HAL_TX_QUEUE_INFO *qi, const HAL_TXQ_INFO *qInfo);
472extern	HAL_BOOL ath_hal_getTxQProps(struct ath_hal *ah,
473		HAL_TXQ_INFO *qInfo, const HAL_TX_QUEUE_INFO *qi);
474
475#define	HAL_SPUR_VAL_MASK		0x3FFF
476#define	HAL_SPUR_CHAN_WIDTH		87
477#define	HAL_BIN_WIDTH_BASE_100HZ	3125
478#define	HAL_BIN_WIDTH_TURBO_100HZ	6250
479#define	HAL_MAX_BINS_ALLOWED		28
480
481#define	IS_CHAN_5GHZ(_c)	((_c)->channel > 4900)
482#define	IS_CHAN_2GHZ(_c)	(!IS_CHAN_5GHZ(_c))
483
484#define	IS_CHAN_IN_PUBLIC_SAFETY_BAND(_c) ((_c) > 4940 && (_c) < 4990)
485
486/*
487 * Deduce if the host cpu has big- or litt-endian byte order.
488 */
489static __inline__ int
490isBigEndian(void)
491{
492	union {
493		int32_t i;
494		char c[4];
495	} u;
496	u.i = 1;
497	return (u.c[0] == 0);
498}
499
500/* unalligned little endian access */
501#define LE_READ_2(p)							\
502	((uint16_t)							\
503	 ((((const uint8_t *)(p))[0]    ) | (((const uint8_t *)(p))[1]<< 8)))
504#define LE_READ_4(p)							\
505	((uint32_t)							\
506	 ((((const uint8_t *)(p))[0]    ) | (((const uint8_t *)(p))[1]<< 8) |\
507	  (((const uint8_t *)(p))[2]<<16) | (((const uint8_t *)(p))[3]<<24)))
508
509/*
510 * Register manipulation macros that expect bit field defines
511 * to follow the convention that an _S suffix is appended for
512 * a shift count, while the field mask has no suffix.
513 */
514#define	SM(_v, _f)	(((_v) << _f##_S) & (_f))
515#define	MS(_v, _f)	(((_v) & (_f)) >> _f##_S)
516#define OS_REG_RMW(_a, _r, _set, _clr)    \
517	OS_REG_WRITE(_a, _r, (OS_REG_READ(_a, _r) & ~(_clr)) | (_set))
518#define	OS_REG_RMW_FIELD(_a, _r, _f, _v) \
519	OS_REG_WRITE(_a, _r, \
520		(OS_REG_READ(_a, _r) &~ (_f)) | (((_v) << _f##_S) & (_f)))
521#define	OS_REG_SET_BIT(_a, _r, _f) \
522	OS_REG_WRITE(_a, _r, OS_REG_READ(_a, _r) | (_f))
523#define	OS_REG_CLR_BIT(_a, _r, _f) \
524	OS_REG_WRITE(_a, _r, OS_REG_READ(_a, _r) &~ (_f))
525#define OS_REG_IS_BIT_SET(_a, _r, _f) \
526	    ((OS_REG_READ(_a, _r) & (_f)) != 0)
527
528/* Analog register writes may require a delay between each one (eg Merlin?) */
529#define	OS_A_REG_RMW_FIELD(_a, _r, _f, _v) \
530	do { OS_REG_WRITE(_a, _r, (OS_REG_READ(_a, _r) &~ (_f)) | \
531	    (((_v) << _f##_S) & (_f))) ; OS_DELAY(100); } while (0)
532#define	OS_A_REG_WRITE(_a, _r, _v) \
533	do { OS_REG_WRITE(_a, _r, _v); OS_DELAY(100); } while (0)
534
535/* wait for the register contents to have the specified value */
536extern	HAL_BOOL ath_hal_wait(struct ath_hal *, u_int reg,
537		uint32_t mask, uint32_t val);
538extern	HAL_BOOL ath_hal_waitfor(struct ath_hal *, u_int reg,
539		uint32_t mask, uint32_t val, uint32_t timeout);
540
541/* return the first n bits in val reversed */
542extern	uint32_t ath_hal_reverseBits(uint32_t val, uint32_t n);
543
544/* printf interfaces */
545extern	void ath_hal_printf(struct ath_hal *, const char*, ...)
546		__printflike(2,3);
547extern	void ath_hal_vprintf(struct ath_hal *, const char*, __va_list)
548		__printflike(2, 0);
549extern	const char* ath_hal_ether_sprintf(const uint8_t *mac);
550
551/* allocate and free memory */
552extern	void *ath_hal_malloc(size_t);
553extern	void ath_hal_free(void *);
554
555/* common debugging interfaces */
556#ifdef AH_DEBUG
557#include "ah_debug.h"
558extern	int ath_hal_debug;	/* Global debug flags */
559
560/*
561 * The typecast is purely because some callers will pass in
562 * AH_NULL directly rather than using a NULL ath_hal pointer.
563 */
564#define	HALDEBUG(_ah, __m, ...) \
565	do {							\
566		if ((__m) == HAL_DEBUG_UNMASKABLE ||		\
567		    ath_hal_debug & (__m) ||			\
568		    ((_ah) != NULL &&				\
569		      ((struct ath_hal *) (_ah))->ah_config.ah_debug & (__m))) {	\
570			DO_HALDEBUG((_ah), (__m), __VA_ARGS__);	\
571		}						\
572	} while(0);
573
574extern	void DO_HALDEBUG(struct ath_hal *ah, u_int mask, const char* fmt, ...)
575	__printflike(3,4);
576#else
577#define HALDEBUG(_ah, __m, ...)
578#endif /* AH_DEBUG */
579
580/*
581 * Register logging definitions shared with ardecode.
582 */
583#include "ah_decode.h"
584
585/*
586 * Common assertion interface.  Note: it is a bad idea to generate
587 * an assertion failure for any recoverable event.  Instead catch
588 * the violation and, if possible, fix it up or recover from it; either
589 * with an error return value or a diagnostic messages.  System software
590 * does not panic unless the situation is hopeless.
591 */
592#ifdef AH_ASSERT
593extern	void ath_hal_assert_failed(const char* filename,
594		int lineno, const char* msg);
595
596#define	HALASSERT(_x) do {					\
597	if (!(_x)) {						\
598		ath_hal_assert_failed(__FILE__, __LINE__, #_x);	\
599	}							\
600} while (0)
601#else
602#define	HALASSERT(_x)
603#endif /* AH_ASSERT */
604
605/*
606 * Regulatory domain support.
607 */
608
609/*
610 * Return the max allowed antenna gain and apply any regulatory
611 * domain specific changes.
612 */
613u_int	ath_hal_getantennareduction(struct ath_hal *ah,
614	    const struct ieee80211_channel *chan, u_int twiceGain);
615
616/*
617 * Return the test group for the specific channel based on
618 * the current regulatory setup.
619 */
620u_int	ath_hal_getctl(struct ath_hal *, const struct ieee80211_channel *);
621
622/*
623 * Map a public channel definition to the corresponding
624 * internal data structure.  This implicitly specifies
625 * whether or not the specified channel is ok to use
626 * based on the current regulatory domain constraints.
627 */
628#ifndef AH_DEBUG
629static OS_INLINE HAL_CHANNEL_INTERNAL *
630ath_hal_checkchannel(struct ath_hal *ah, const struct ieee80211_channel *c)
631{
632	HAL_CHANNEL_INTERNAL *cc;
633
634	HALASSERT(c->ic_devdata < AH_PRIVATE(ah)->ah_nchan);
635	cc = &AH_PRIVATE(ah)->ah_channels[c->ic_devdata];
636	HALASSERT(c->ic_freq == cc->channel || IEEE80211_IS_CHAN_GSM(c));
637	return cc;
638}
639#else
640/* NB: non-inline version that checks state */
641HAL_CHANNEL_INTERNAL *ath_hal_checkchannel(struct ath_hal *,
642		const struct ieee80211_channel *);
643#endif /* AH_DEBUG */
644
645/*
646 * Return the h/w frequency for a channel.  This may be
647 * different from ic_freq if this is a GSM device that
648 * takes 2.4GHz frequencies and down-converts them.
649 */
650static OS_INLINE uint16_t
651ath_hal_gethwchannel(struct ath_hal *ah, const struct ieee80211_channel *c)
652{
653	return ath_hal_checkchannel(ah, c)->channel;
654}
655
656/*
657 * Convert between microseconds and core system clocks.
658 */
659extern	u_int ath_hal_mac_clks(struct ath_hal *ah, u_int usecs);
660extern	u_int ath_hal_mac_usec(struct ath_hal *ah, u_int clks);
661
662/*
663 * Generic get/set capability support.  Each chip overrides
664 * this routine to support chip-specific capabilities.
665 */
666extern	HAL_STATUS ath_hal_getcapability(struct ath_hal *ah,
667		HAL_CAPABILITY_TYPE type, uint32_t capability,
668		uint32_t *result);
669extern	HAL_BOOL ath_hal_setcapability(struct ath_hal *ah,
670		HAL_CAPABILITY_TYPE type, uint32_t capability,
671		uint32_t setting, HAL_STATUS *status);
672
673/* The diagnostic codes used to be internally defined here -adrian */
674#include "ah_diagcodes.h"
675
676/*
677 * The AR5416 and later HALs have MAC and baseband hang checking.
678 */
679typedef struct {
680	uint32_t hang_reg_offset;
681	uint32_t hang_val;
682	uint32_t hang_mask;
683	uint32_t hang_offset;
684} hal_hw_hang_check_t;
685
686typedef struct {
687	uint32_t dma_dbg_3;
688	uint32_t dma_dbg_4;
689	uint32_t dma_dbg_5;
690	uint32_t dma_dbg_6;
691} mac_dbg_regs_t;
692
693typedef enum {
694	dcu_chain_state		= 0x1,
695	dcu_complete_state	= 0x2,
696	qcu_state		= 0x4,
697	qcu_fsp_ok		= 0x8,
698	qcu_fsp_state		= 0x10,
699	qcu_stitch_state	= 0x20,
700	qcu_fetch_state		= 0x40,
701	qcu_complete_state	= 0x80
702} hal_mac_hangs_t;
703
704typedef struct {
705	int states;
706	uint8_t dcu_chain_state;
707	uint8_t dcu_complete_state;
708	uint8_t qcu_state;
709	uint8_t qcu_fsp_ok;
710	uint8_t qcu_fsp_state;
711	uint8_t qcu_stitch_state;
712	uint8_t qcu_fetch_state;
713	uint8_t qcu_complete_state;
714} hal_mac_hang_check_t;
715
716enum {
717    HAL_BB_HANG_DFS		= 0x0001,
718    HAL_BB_HANG_RIFS		= 0x0002,
719    HAL_BB_HANG_RX_CLEAR	= 0x0004,
720    HAL_BB_HANG_UNKNOWN		= 0x0080,
721
722    HAL_MAC_HANG_SIG1		= 0x0100,
723    HAL_MAC_HANG_SIG2		= 0x0200,
724    HAL_MAC_HANG_UNKNOWN	= 0x8000,
725
726    HAL_BB_HANGS = HAL_BB_HANG_DFS
727		 | HAL_BB_HANG_RIFS
728		 | HAL_BB_HANG_RX_CLEAR
729		 | HAL_BB_HANG_UNKNOWN,
730    HAL_MAC_HANGS = HAL_MAC_HANG_SIG1
731		 | HAL_MAC_HANG_SIG2
732		 | HAL_MAC_HANG_UNKNOWN,
733};
734
735/*
736 * Device revision information.
737 */
738typedef struct {
739	uint16_t	ah_devid;		/* PCI device ID */
740	uint16_t	ah_subvendorid;		/* PCI subvendor ID */
741	uint32_t	ah_macVersion;		/* MAC version id */
742	uint16_t	ah_macRev;		/* MAC revision */
743	uint16_t	ah_phyRev;		/* PHY revision */
744	uint16_t	ah_analog5GhzRev;	/* 2GHz radio revision */
745	uint16_t	ah_analog2GhzRev;	/* 5GHz radio revision */
746} HAL_REVS;
747
748/*
749 * Argument payload for HAL_DIAG_SETKEY.
750 */
751typedef struct {
752	HAL_KEYVAL	dk_keyval;
753	uint16_t	dk_keyix;	/* key index */
754	uint8_t		dk_mac[IEEE80211_ADDR_LEN];
755	int		dk_xor;		/* XOR key data */
756} HAL_DIAG_KEYVAL;
757
758/*
759 * Argument payload for HAL_DIAG_EEWRITE.
760 */
761typedef struct {
762	uint16_t	ee_off;		/* eeprom offset */
763	uint16_t	ee_data;	/* write data */
764} HAL_DIAG_EEVAL;
765
766
767typedef struct {
768	u_int offset;		/* reg offset */
769	uint32_t val;		/* reg value  */
770} HAL_DIAG_REGVAL;
771
772/*
773 * 11n compatibility tweaks.
774 */
775#define	HAL_DIAG_11N_SERVICES	0x00000003
776#define	HAL_DIAG_11N_SERVICES_S	0
777#define	HAL_DIAG_11N_TXSTOMP	0x0000000c
778#define	HAL_DIAG_11N_TXSTOMP_S	2
779
780typedef struct {
781	int		maxNoiseImmunityLevel;	/* [0..4] */
782	int		totalSizeDesired[5];
783	int		coarseHigh[5];
784	int		coarseLow[5];
785	int		firpwr[5];
786
787	int		maxSpurImmunityLevel;	/* [0..7] */
788	int		cycPwrThr1[8];
789
790	int		maxFirstepLevel;	/* [0..2] */
791	int		firstep[3];
792
793	uint32_t	ofdmTrigHigh;
794	uint32_t	ofdmTrigLow;
795	int32_t		cckTrigHigh;
796	int32_t		cckTrigLow;
797	int32_t		rssiThrLow;
798	int32_t		rssiThrHigh;
799
800	int		period;			/* update listen period */
801} HAL_ANI_PARAMS;
802
803extern	HAL_BOOL ath_hal_getdiagstate(struct ath_hal *ah, int request,
804			const void *args, uint32_t argsize,
805			void **result, uint32_t *resultsize);
806
807/*
808 * Setup a h/w rate table for use.
809 */
810extern	void ath_hal_setupratetable(struct ath_hal *ah, HAL_RATE_TABLE *rt);
811
812/*
813 * Common routine for implementing getChanNoise api.
814 */
815int16_t	ath_hal_getChanNoise(struct ath_hal *, const struct ieee80211_channel *);
816
817/*
818 * Initialization support.
819 */
820typedef struct {
821	const uint32_t	*data;
822	int		rows, cols;
823} HAL_INI_ARRAY;
824
825#define	HAL_INI_INIT(_ia, _data, _cols) do {			\
826	(_ia)->data = (const uint32_t *)(_data);		\
827	(_ia)->rows = sizeof(_data) / sizeof((_data)[0]);	\
828	(_ia)->cols = (_cols);					\
829} while (0)
830#define	HAL_INI_VAL(_ia, _r, _c) \
831	((_ia)->data[((_r)*(_ia)->cols) + (_c)])
832
833/*
834 * OS_DELAY() does a PIO READ on the PCI bus which allows
835 * other cards' DMA reads to complete in the middle of our reset.
836 */
837#define DMA_YIELD(x) do {		\
838	if ((++(x) % 64) == 0)		\
839		OS_DELAY(1);		\
840} while (0)
841
842#define HAL_INI_WRITE_ARRAY(ah, regArray, col, regWr) do {             	\
843	int r;								\
844	for (r = 0; r < N(regArray); r++) {				\
845		OS_REG_WRITE(ah, (regArray)[r][0], (regArray)[r][col]);	\
846		DMA_YIELD(regWr);					\
847	}								\
848} while (0)
849
850#define HAL_INI_WRITE_BANK(ah, regArray, bankData, regWr) do {		\
851	int r;								\
852	for (r = 0; r < N(regArray); r++) {				\
853		OS_REG_WRITE(ah, (regArray)[r][0], (bankData)[r]);	\
854		DMA_YIELD(regWr);					\
855	}								\
856} while (0)
857
858extern	int ath_hal_ini_write(struct ath_hal *ah, const HAL_INI_ARRAY *ia,
859		int col, int regWr);
860extern	void ath_hal_ini_bank_setup(uint32_t data[], const HAL_INI_ARRAY *ia,
861		int col);
862extern	int ath_hal_ini_bank_write(struct ath_hal *ah, const HAL_INI_ARRAY *ia,
863		const uint32_t data[], int regWr);
864
865#define	CCK_SIFS_TIME		10
866#define	CCK_PREAMBLE_BITS	144
867#define	CCK_PLCP_BITS		48
868
869#define	OFDM_SIFS_TIME		16
870#define	OFDM_PREAMBLE_TIME	20
871#define	OFDM_PLCP_BITS		22
872#define	OFDM_SYMBOL_TIME	4
873
874#define	OFDM_HALF_SIFS_TIME	32
875#define	OFDM_HALF_PREAMBLE_TIME	40
876#define	OFDM_HALF_PLCP_BITS	22
877#define	OFDM_HALF_SYMBOL_TIME	8
878
879#define	OFDM_QUARTER_SIFS_TIME 		64
880#define	OFDM_QUARTER_PREAMBLE_TIME	80
881#define	OFDM_QUARTER_PLCP_BITS		22
882#define	OFDM_QUARTER_SYMBOL_TIME	16
883
884#define	TURBO_SIFS_TIME		8
885#define	TURBO_PREAMBLE_TIME	14
886#define	TURBO_PLCP_BITS		22
887#define	TURBO_SYMBOL_TIME	4
888
889#define	WLAN_CTRL_FRAME_SIZE	(2+2+6+4)	/* ACK+FCS */
890
891/* Generic EEPROM board value functions */
892extern	HAL_BOOL ath_ee_getLowerUpperIndex(uint8_t target, uint8_t *pList,
893	uint16_t listSize, uint16_t *indexL, uint16_t *indexR);
894extern	HAL_BOOL ath_ee_FillVpdTable(uint8_t pwrMin, uint8_t pwrMax,
895	uint8_t *pPwrList, uint8_t *pVpdList, uint16_t numIntercepts,
896	uint8_t *pRetVpdList);
897extern	int16_t ath_ee_interpolate(uint16_t target, uint16_t srcLeft,
898	uint16_t srcRight, int16_t targetLeft, int16_t targetRight);
899
900/* Whether 5ghz fast clock is needed */
901/*
902 * The chipset (Merlin, AR9300/later) should set the capability flag below;
903 * this flag simply says that the hardware can do it, not that the EEPROM
904 * says it can.
905 *
906 * Merlin 2.0/2.1 chips with an EEPROM version > 16 do 5ghz fast clock
907 *   if the relevant eeprom flag is set.
908 * Merlin 2.0/2.1 chips with an EEPROM version <= 16 do 5ghz fast clock
909 *   by default.
910 */
911#define	IS_5GHZ_FAST_CLOCK_EN(_ah, _c) \
912	(IEEE80211_IS_CHAN_5GHZ(_c) && \
913	 AH_PRIVATE((_ah))->ah_caps.halSupportsFastClock5GHz && \
914	ath_hal_eepromGetFlag((_ah), AR_EEP_FSTCLK_5G))
915
916
917#endif /* _ATH_AH_INTERAL_H_ */
918