ah_internal.h revision 190867
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 190867 2009-04-09 16:53:59Z sam $
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
32#ifndef NBBY
33#define	NBBY	8			/* number of bits/byte */
34#endif
35
36#ifndef roundup
37#define	roundup(x, y)	((((x)+((y)-1))/(y))*(y))  /* to any y */
38#endif
39#ifndef howmany
40#define	howmany(x, y)	(((x)+((y)-1))/(y))
41#endif
42
43#ifndef offsetof
44#define	offsetof(type, field)	((size_t)(&((type *)0)->field))
45#endif
46
47typedef struct {
48	uint16_t	start;		/* first register */
49	uint16_t	end;		/* ending register or zero */
50} HAL_REGRANGE;
51
52typedef struct {
53	uint32_t	addr;		/* regiser address/offset */
54	uint32_t	value;		/* value to write */
55} HAL_REGWRITE;
56
57/*
58 * Transmit power scale factor.
59 *
60 * NB: This is not public because we want to discourage the use of
61 *     scaling; folks should use the tx power limit interface.
62 */
63typedef enum {
64	HAL_TP_SCALE_MAX	= 0,		/* no scaling (default) */
65	HAL_TP_SCALE_50		= 1,		/* 50% of max (-3 dBm) */
66	HAL_TP_SCALE_25		= 2,		/* 25% of max (-6 dBm) */
67	HAL_TP_SCALE_12		= 3,		/* 12% of max (-9 dBm) */
68	HAL_TP_SCALE_MIN	= 4,		/* min, but still on */
69} HAL_TP_SCALE;
70
71typedef enum {
72 	HAL_CAP_RADAR		= 0,		/* Radar capability */
73 	HAL_CAP_AR		= 1,		/* AR capability */
74} HAL_PHYDIAG_CAPS;
75
76/*
77 * Each chip or class of chips registers to offer support.
78 */
79struct ath_hal_chip {
80	const char	*name;
81	const char	*(*probe)(uint16_t vendorid, uint16_t devid);
82	struct ath_hal	*(*attach)(uint16_t devid, HAL_SOFTC,
83			    HAL_BUS_TAG, HAL_BUS_HANDLE, HAL_STATUS *error);
84};
85#ifndef AH_CHIP
86#define	AH_CHIP(_name, _probe, _attach)				\
87static struct ath_hal_chip _name##_chip = {			\
88	.name		= #_name,				\
89	.probe		= _probe,				\
90	.attach		= _attach				\
91};								\
92OS_DATA_SET(ah_chips, _name##_chip)
93#endif
94
95/*
96 * Each RF backend registers to offer support; this is mostly
97 * used by multi-chip 5212 solutions.  Single-chip solutions
98 * have a fixed idea about which RF to use.
99 */
100struct ath_hal_rf {
101	const char	*name;
102	HAL_BOOL	(*probe)(struct ath_hal *ah);
103	HAL_BOOL	(*attach)(struct ath_hal *ah, HAL_STATUS *ecode);
104};
105#ifndef AH_RF
106#define	AH_RF(_name, _probe, _attach)				\
107static struct ath_hal_rf _name##_rf = {				\
108	.name		= __STRING(_name),			\
109	.probe		= _probe,				\
110	.attach		= _attach				\
111};								\
112OS_DATA_SET(ah_rfs, _name##_rf)
113#endif
114
115struct ath_hal_rf *ath_hal_rfprobe(struct ath_hal *ah, HAL_STATUS *ecode);
116
117/*
118 * Maximum number of internal channels.  Entries are per unique
119 * frequency so this might be need to be increased to handle all
120 * usage cases; typically no more than 32 are really needed but
121 * dynamically allocating the data structures is a bit painful
122 * right now.
123 */
124#ifndef AH_MAXCHAN
125#define	AH_MAXCHAN	96
126#endif
127
128/*
129 * Internal per-channel state.  These are found
130 * using ic_devdata in the ieee80211_channel.
131 */
132typedef struct {
133	uint16_t	channel;	/* h/w frequency, NB: may be mapped */
134	uint8_t		privFlags;
135#define	CHANNEL_IQVALID		0x01	/* IQ calibration valid */
136#define	CHANNEL_ANI_INIT	0x02	/* ANI state initialized */
137#define	CHANNEL_ANI_SETUP	0x04	/* ANI state setup */
138	uint8_t		calValid;	/* bitmask of cal types */
139	int8_t		iCoff;
140	int8_t		qCoff;
141	int16_t		rawNoiseFloor;
142	int16_t		noiseFloorAdjust;
143	uint16_t	mainSpur;	/* cached spur value for this channel */
144} HAL_CHANNEL_INTERNAL;
145
146/* channel requires noise floor check */
147#define	CHANNEL_NFCREQUIRED	IEEE80211_CHAN_PRIV0
148
149/* all full-width channels */
150#define	IEEE80211_CHAN_ALLFULL \
151	(IEEE80211_CHAN_ALL - (IEEE80211_CHAN_HALF | IEEE80211_CHAN_QUARTER))
152#define	IEEE80211_CHAN_ALLTURBOFULL \
153	(IEEE80211_CHAN_ALLTURBO - \
154	 (IEEE80211_CHAN_HALF | IEEE80211_CHAN_QUARTER))
155
156typedef struct {
157	uint32_t	halChanSpreadSupport 		: 1,
158			halSleepAfterBeaconBroken	: 1,
159			halCompressSupport		: 1,
160			halBurstSupport			: 1,
161			halFastFramesSupport		: 1,
162			halChapTuningSupport		: 1,
163			halTurboGSupport		: 1,
164			halTurboPrimeSupport		: 1,
165			halMicAesCcmSupport		: 1,
166			halMicCkipSupport		: 1,
167			halMicTkipSupport		: 1,
168			halTkipMicTxRxKeySupport	: 1,
169			halCipherAesCcmSupport		: 1,
170			halCipherCkipSupport		: 1,
171			halCipherTkipSupport		: 1,
172			halPSPollBroken			: 1,
173			halVEOLSupport			: 1,
174			halBssIdMaskSupport		: 1,
175			halMcastKeySrchSupport		: 1,
176			halTsfAddSupport		: 1,
177			halChanHalfRate			: 1,
178			halChanQuarterRate		: 1,
179			halHTSupport			: 1,
180			halRfSilentSupport		: 1,
181			halHwPhyCounterSupport		: 1,
182			halWowSupport			: 1,
183			halWowMatchPatternExact		: 1,
184			halAutoSleepSupport		: 1,
185			halFastCCSupport		: 1,
186			halBtCoexSupport		: 1;
187	uint32_t	halRxStbcSupport		: 1,
188			halTxStbcSupport		: 1,
189			halGTTSupport			: 1,
190			halCSTSupport			: 1,
191			halRifsRxSupport		: 1,
192			halRifsTxSupport		: 1,
193			halExtChanDfsSupport		: 1,
194			halForcePpmSupport		: 1,
195			halEnhancedPmSupport		: 1,
196			halMbssidAggrSupport		: 1;
197	uint32_t	halWirelessModes;
198	uint16_t	halTotalQueues;
199	uint16_t	halKeyCacheSize;
200	uint16_t	halLow5GhzChan, halHigh5GhzChan;
201	uint16_t	halLow2GhzChan, halHigh2GhzChan;
202	int		halTstampPrecision;
203	int		halRtsAggrLimit;
204	uint8_t		halTxChainMask;
205	uint8_t		halRxChainMask;
206	uint8_t		halNumGpioPins;
207	uint8_t		halNumAntCfg2GHz;
208	uint8_t		halNumAntCfg5GHz;
209} HAL_CAPABILITIES;
210
211struct regDomain;
212
213/*
214 * The ``private area'' follows immediately after the ``public area''
215 * in the data structure returned by ath_hal_attach.  Private data are
216 * used by device-independent code such as the regulatory domain support.
217 * In general, code within the HAL should never depend on data in the
218 * public area.  Instead any public data needed internally should be
219 * shadowed here.
220 *
221 * When declaring a device-specific ath_hal data structure this structure
222 * is assumed to at the front; e.g.
223 *
224 *	struct ath_hal_5212 {
225 *		struct ath_hal_private	ah_priv;
226 *		...
227 *	};
228 *
229 * It might be better to manage the method pointers in this structure
230 * using an indirect pointer to a read-only data structure but this would
231 * disallow class-style method overriding.
232 */
233struct ath_hal_private {
234	struct ath_hal	h;			/* public area */
235
236	/* NB: all methods go first to simplify initialization */
237	HAL_BOOL	(*ah_getChannelEdges)(struct ath_hal*,
238				uint16_t channelFlags,
239				uint16_t *lowChannel, uint16_t *highChannel);
240	u_int		(*ah_getWirelessModes)(struct ath_hal*);
241	HAL_BOOL	(*ah_eepromRead)(struct ath_hal *, u_int off,
242				uint16_t *data);
243	HAL_BOOL	(*ah_eepromWrite)(struct ath_hal *, u_int off,
244				uint16_t data);
245	HAL_BOOL	(*ah_getChipPowerLimits)(struct ath_hal *,
246				struct ieee80211_channel *);
247	int16_t		(*ah_getNfAdjust)(struct ath_hal *,
248				const HAL_CHANNEL_INTERNAL*);
249	void		(*ah_getNoiseFloor)(struct ath_hal *,
250				int16_t nfarray[]);
251
252	void		*ah_eeprom;		/* opaque EEPROM state */
253	uint16_t	ah_eeversion;		/* EEPROM version */
254	void		(*ah_eepromDetach)(struct ath_hal *);
255	HAL_STATUS	(*ah_eepromGet)(struct ath_hal *, int, void *);
256	HAL_BOOL	(*ah_eepromSet)(struct ath_hal *, int, int);
257	uint16_t	(*ah_getSpurChan)(struct ath_hal *, int, HAL_BOOL);
258	HAL_BOOL	(*ah_eepromDiag)(struct ath_hal *, int request,
259			    const void *args, uint32_t argsize,
260			    void **result, uint32_t *resultsize);
261
262	/*
263	 * Device revision information.
264	 */
265	uint16_t	ah_devid;		/* PCI device ID */
266	uint16_t	ah_subvendorid;		/* PCI subvendor ID */
267	uint32_t	ah_macVersion;		/* MAC version id */
268	uint16_t	ah_macRev;		/* MAC revision */
269	uint16_t	ah_phyRev;		/* PHY revision */
270	uint16_t	ah_analog5GhzRev;	/* 2GHz radio revision */
271	uint16_t	ah_analog2GhzRev;	/* 5GHz radio revision */
272	uint8_t		ah_ispcie;		/* PCIE, special treatment */
273
274	HAL_OPMODE	ah_opmode;		/* operating mode from reset */
275	const struct ieee80211_channel *ah_curchan;/* operating channel */
276	HAL_CAPABILITIES ah_caps;		/* device capabilities */
277	uint32_t	ah_diagreg;		/* user-specified AR_DIAG_SW */
278	int16_t		ah_powerLimit;		/* tx power cap */
279	uint16_t	ah_maxPowerLevel;	/* calculated max tx power */
280	u_int		ah_tpScale;		/* tx power scale factor */
281	uint32_t	ah_11nCompat;		/* 11n compat controls */
282
283	/*
284	 * State for regulatory domain handling.
285	 */
286	HAL_REG_DOMAIN	ah_currentRD;		/* EEPROM regulatory domain */
287	HAL_CHANNEL_INTERNAL ah_channels[AH_MAXCHAN]; /* private chan state */
288	u_int		ah_nchan;		/* valid items in ah_channels */
289	const struct regDomain *ah_rd2GHz;	/* reg state for 2G band */
290	const struct regDomain *ah_rd5GHz;	/* reg state for 5G band */
291
292	uint8_t    	ah_coverageClass;   	/* coverage class */
293	/*
294	 * RF Silent handling; setup according to the EEPROM.
295	 */
296	uint16_t	ah_rfsilent;		/* GPIO pin + polarity */
297	HAL_BOOL	ah_rfkillEnabled;	/* enable/disable RfKill */
298	/*
299	 * Diagnostic support for discriminating HIUERR reports.
300	 */
301	uint32_t	ah_fatalState[6];	/* AR_ISR+shadow regs */
302	int		ah_rxornIsFatal;	/* how to treat HAL_INT_RXORN */
303};
304
305#define	AH_PRIVATE(_ah)	((struct ath_hal_private *)(_ah))
306
307#define	ath_hal_getChannelEdges(_ah, _cf, _lc, _hc) \
308	AH_PRIVATE(_ah)->ah_getChannelEdges(_ah, _cf, _lc, _hc)
309#define	ath_hal_getWirelessModes(_ah) \
310	AH_PRIVATE(_ah)->ah_getWirelessModes(_ah)
311#define	ath_hal_eepromRead(_ah, _off, _data) \
312	AH_PRIVATE(_ah)->ah_eepromRead(_ah, _off, _data)
313#define	ath_hal_eepromWrite(_ah, _off, _data) \
314	AH_PRIVATE(_ah)->ah_eepromWrite(_ah, _off, _data)
315#define	ath_hal_gpioCfgOutput(_ah, _gpio, _type) \
316	(_ah)->ah_gpioCfgOutput(_ah, _gpio, _type)
317#define	ath_hal_gpioCfgInput(_ah, _gpio) \
318	(_ah)->ah_gpioCfgInput(_ah, _gpio)
319#define	ath_hal_gpioGet(_ah, _gpio) \
320	(_ah)->ah_gpioGet(_ah, _gpio)
321#define	ath_hal_gpioSet(_ah, _gpio, _val) \
322	(_ah)->ah_gpioSet(_ah, _gpio, _val)
323#define	ath_hal_gpioSetIntr(_ah, _gpio, _ilevel) \
324	(_ah)->ah_gpioSetIntr(_ah, _gpio, _ilevel)
325#define	ath_hal_getpowerlimits(_ah, _chan) \
326	AH_PRIVATE(_ah)->ah_getChipPowerLimits(_ah, _chan)
327#define ath_hal_getNfAdjust(_ah, _c) \
328	AH_PRIVATE(_ah)->ah_getNfAdjust(_ah, _c)
329#define	ath_hal_getNoiseFloor(_ah, _nfArray) \
330	AH_PRIVATE(_ah)->ah_getNoiseFloor(_ah, _nfArray)
331#define	ath_hal_configPCIE(_ah, _reset) \
332	(_ah)->ah_configPCIE(_ah, _reset)
333#define	ath_hal_disablePCIE(_ah) \
334	(_ah)->ah_disablePCIE(_ah)
335
336#define	ath_hal_eepromDetach(_ah) do {				\
337	if (AH_PRIVATE(_ah)->ah_eepromDetach != AH_NULL)	\
338		AH_PRIVATE(_ah)->ah_eepromDetach(_ah);		\
339} while (0)
340#define	ath_hal_eepromGet(_ah, _param, _val) \
341	AH_PRIVATE(_ah)->ah_eepromGet(_ah, _param, _val)
342#define	ath_hal_eepromSet(_ah, _param, _val) \
343	AH_PRIVATE(_ah)->ah_eepromSet(_ah, _param, _val)
344#define	ath_hal_eepromGetFlag(_ah, _param) \
345	(AH_PRIVATE(_ah)->ah_eepromGet(_ah, _param, AH_NULL) == HAL_OK)
346#define ath_hal_getSpurChan(_ah, _ix, _is2G) \
347	AH_PRIVATE(_ah)->ah_getSpurChan(_ah, _ix, _is2G)
348#define	ath_hal_eepromDiag(_ah, _request, _a, _asize, _r, _rsize) \
349	AH_PRIVATE(_ah)->ah_eepromDiag(_ah, _request, _a, _asize,  _r, _rsize)
350
351#ifndef _NET_IF_IEEE80211_H_
352/*
353 * Stuff that would naturally come from _ieee80211.h
354 */
355#define	IEEE80211_ADDR_LEN		6
356
357#define	IEEE80211_WEP_IVLEN			3	/* 24bit */
358#define	IEEE80211_WEP_KIDLEN			1	/* 1 octet */
359#define	IEEE80211_WEP_CRCLEN			4	/* CRC-32 */
360
361#define	IEEE80211_CRC_LEN			4
362
363#define	IEEE80211_MAX_LEN			(2300 + IEEE80211_CRC_LEN + \
364    (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN))
365#endif /* _NET_IF_IEEE80211_H_ */
366
367#define HAL_TXQ_USE_LOCKOUT_BKOFF_DIS	0x00000001
368
369#define INIT_AIFS		2
370#define INIT_CWMIN		15
371#define INIT_CWMIN_11B		31
372#define INIT_CWMAX		1023
373#define INIT_SH_RETRY		10
374#define INIT_LG_RETRY		10
375#define INIT_SSH_RETRY		32
376#define INIT_SLG_RETRY		32
377
378typedef struct {
379	uint32_t	tqi_ver;		/* HAL TXQ verson */
380	HAL_TX_QUEUE	tqi_type;		/* hw queue type*/
381	HAL_TX_QUEUE_SUBTYPE tqi_subtype;	/* queue subtype, if applicable */
382	HAL_TX_QUEUE_FLAGS tqi_qflags;		/* queue flags */
383	uint32_t	tqi_priority;
384	uint32_t	tqi_aifs;		/* aifs */
385	uint32_t	tqi_cwmin;		/* cwMin */
386	uint32_t	tqi_cwmax;		/* cwMax */
387	uint16_t	tqi_shretry;		/* frame short retry limit */
388	uint16_t	tqi_lgretry;		/* frame long retry limit */
389	uint32_t	tqi_cbrPeriod;
390	uint32_t	tqi_cbrOverflowLimit;
391	uint32_t	tqi_burstTime;
392	uint32_t	tqi_readyTime;
393	uint32_t	tqi_physCompBuf;
394	uint32_t	tqi_intFlags;		/* flags for internal use */
395} HAL_TX_QUEUE_INFO;
396
397extern	HAL_BOOL ath_hal_setTxQProps(struct ath_hal *ah,
398		HAL_TX_QUEUE_INFO *qi, const HAL_TXQ_INFO *qInfo);
399extern	HAL_BOOL ath_hal_getTxQProps(struct ath_hal *ah,
400		HAL_TXQ_INFO *qInfo, const HAL_TX_QUEUE_INFO *qi);
401
402typedef enum {
403	HAL_ANI_PRESENT,			/* is ANI support present */
404	HAL_ANI_NOISE_IMMUNITY_LEVEL,		/* set level */
405	HAL_ANI_OFDM_WEAK_SIGNAL_DETECTION,	/* enable/disable */
406	HAL_ANI_CCK_WEAK_SIGNAL_THR,		/* enable/disable */
407	HAL_ANI_FIRSTEP_LEVEL,			/* set level */
408	HAL_ANI_SPUR_IMMUNITY_LEVEL,		/* set level */
409	HAL_ANI_MODE = 6,	/* 0 => manual, 1 => auto (XXX do not change) */
410	HAL_ANI_PHYERR_RESET,			/* reset phy error stats */
411} HAL_ANI_CMD;
412
413#define	HAL_SPUR_VAL_MASK		0x3FFF
414#define	HAL_SPUR_CHAN_WIDTH		87
415#define	HAL_BIN_WIDTH_BASE_100HZ	3125
416#define	HAL_BIN_WIDTH_TURBO_100HZ	6250
417#define	HAL_MAX_BINS_ALLOWED		28
418
419#define	IS_CHAN_5GHZ(_c)	((_c)->channel > 4900)
420#define	IS_CHAN_2GHZ(_c)	(!IS_CHAN_5GHZ(_c))
421
422#define	IS_CHAN_IN_PUBLIC_SAFETY_BAND(_c) ((_c) > 4940 && (_c) < 4990)
423
424/*
425 * Deduce if the host cpu has big- or litt-endian byte order.
426 */
427static __inline__ int
428isBigEndian(void)
429{
430	union {
431		int32_t i;
432		char c[4];
433	} u;
434	u.i = 1;
435	return (u.c[0] == 0);
436}
437
438/* unalligned little endian access */
439#define LE_READ_2(p)							\
440	((uint16_t)							\
441	 ((((const uint8_t *)(p))[0]    ) | (((const uint8_t *)(p))[1]<< 8)))
442#define LE_READ_4(p)							\
443	((uint32_t)							\
444	 ((((const uint8_t *)(p))[0]    ) | (((const uint8_t *)(p))[1]<< 8) |\
445	  (((const uint8_t *)(p))[2]<<16) | (((const uint8_t *)(p))[3]<<24)))
446
447/*
448 * Register manipulation macros that expect bit field defines
449 * to follow the convention that an _S suffix is appended for
450 * a shift count, while the field mask has no suffix.
451 */
452#define	SM(_v, _f)	(((_v) << _f##_S) & (_f))
453#define	MS(_v, _f)	(((_v) & (_f)) >> _f##_S)
454#define	OS_REG_RMW_FIELD(_a, _r, _f, _v) \
455	OS_REG_WRITE(_a, _r, \
456		(OS_REG_READ(_a, _r) &~ (_f)) | (((_v) << _f##_S) & (_f)))
457#define	OS_REG_SET_BIT(_a, _r, _f) \
458	OS_REG_WRITE(_a, _r, OS_REG_READ(_a, _r) | (_f))
459#define	OS_REG_CLR_BIT(_a, _r, _f) \
460	OS_REG_WRITE(_a, _r, OS_REG_READ(_a, _r) &~ (_f))
461
462/* system-configurable parameters */
463extern	int ath_hal_dma_beacon_response_time;	/* in TU's */
464extern	int ath_hal_sw_beacon_response_time;	/* in TU's */
465extern	int ath_hal_additional_swba_backoff;	/* in TU's */
466
467/* wait for the register contents to have the specified value */
468extern	HAL_BOOL ath_hal_wait(struct ath_hal *, u_int reg,
469		uint32_t mask, uint32_t val);
470
471/* return the first n bits in val reversed */
472extern	uint32_t ath_hal_reverseBits(uint32_t val, uint32_t n);
473
474/* printf interfaces */
475extern	void ath_hal_printf(struct ath_hal *, const char*, ...)
476		__printflike(2,3);
477extern	void ath_hal_vprintf(struct ath_hal *, const char*, __va_list)
478		__printflike(2, 0);
479extern	const char* ath_hal_ether_sprintf(const uint8_t *mac);
480
481/* allocate and free memory */
482extern	void *ath_hal_malloc(size_t);
483extern	void ath_hal_free(void *);
484
485/* common debugging interfaces */
486#ifdef AH_DEBUG
487#include "ah_debug.h"
488extern	int ath_hal_debug;
489extern	void HALDEBUG(struct ath_hal *ah, u_int mask, const char* fmt, ...)
490	__printflike(3,4);
491#else
492#define HALDEBUG(_ah, __m, _fmt, ...)
493#endif /* AH_DEBUG */
494
495/*
496 * Register logging definitions shared with ardecode.
497 */
498#include "ah_decode.h"
499
500/*
501 * Common assertion interface.  Note: it is a bad idea to generate
502 * an assertion failure for any recoverable event.  Instead catch
503 * the violation and, if possible, fix it up or recover from it; either
504 * with an error return value or a diagnostic messages.  System software
505 * does not panic unless the situation is hopeless.
506 */
507#ifdef AH_ASSERT
508extern	void ath_hal_assert_failed(const char* filename,
509		int lineno, const char* msg);
510
511#define	HALASSERT(_x) do {					\
512	if (!(_x)) {						\
513		ath_hal_assert_failed(__FILE__, __LINE__, #_x);	\
514	}							\
515} while (0)
516#else
517#define	HALASSERT(_x)
518#endif /* AH_ASSERT */
519
520/*
521 * Regulatory domain support.
522 */
523
524/*
525 * Return the max allowed antenna gain and apply any regulatory
526 * domain specific changes.
527 */
528u_int	ath_hal_getantennareduction(struct ath_hal *ah,
529	    const struct ieee80211_channel *chan, u_int twiceGain);
530
531/*
532 * Return the test group for the specific channel based on
533 * the current regulatory setup.
534 */
535u_int	ath_hal_getctl(struct ath_hal *, const struct ieee80211_channel *);
536
537/*
538 * Map a public channel definition to the corresponding
539 * internal data structure.  This implicitly specifies
540 * whether or not the specified channel is ok to use
541 * based on the current regulatory domain constraints.
542 */
543#ifndef AH_DEBUG
544static OS_INLINE HAL_CHANNEL_INTERNAL *
545ath_hal_checkchannel(struct ath_hal *ah, const struct ieee80211_channel *c)
546{
547	HAL_CHANNEL_INTERNAL *cc;
548
549	HALASSERT(c->ic_devdata < AH_PRIVATE(ah)->ah_nchan);
550	cc = &AH_PRIVATE(ah)->ah_channels[c->ic_devdata];
551	HALASSERT(c->ic_freq == cc->channel || IEEE80211_IS_CHAN_GSM(c));
552	return cc;
553}
554#else
555/* NB: non-inline version that checks state */
556HAL_CHANNEL_INTERNAL *ath_hal_checkchannel(struct ath_hal *,
557		const struct ieee80211_channel *);
558#endif /* AH_DEBUG */
559
560/*
561 * Return the h/w frequency for a channel.  This may be
562 * different from ic_freq if this is a GSM device that
563 * takes 2.4GHz frequencies and down-converts them.
564 */
565static OS_INLINE uint16_t
566ath_hal_gethwchannel(struct ath_hal *ah, const struct ieee80211_channel *c)
567{
568	return ath_hal_checkchannel(ah, c)->channel;
569}
570
571/*
572 * Convert between microseconds and core system clocks.
573 */
574extern	u_int ath_hal_mac_clks(struct ath_hal *ah, u_int usecs);
575extern	u_int ath_hal_mac_usec(struct ath_hal *ah, u_int clks);
576
577/*
578 * Generic get/set capability support.  Each chip overrides
579 * this routine to support chip-specific capabilities.
580 */
581extern	HAL_STATUS ath_hal_getcapability(struct ath_hal *ah,
582		HAL_CAPABILITY_TYPE type, uint32_t capability,
583		uint32_t *result);
584extern	HAL_BOOL ath_hal_setcapability(struct ath_hal *ah,
585		HAL_CAPABILITY_TYPE type, uint32_t capability,
586		uint32_t setting, HAL_STATUS *status);
587
588/*
589 * Diagnostic interface.  This is an open-ended interface that
590 * is opaque to applications.  Diagnostic programs use this to
591 * retrieve internal data structures, etc.  There is no guarantee
592 * that calling conventions for calls other than HAL_DIAG_REVS
593 * are stable between HAL releases; a diagnostic application must
594 * use the HAL revision information to deal with ABI/API differences.
595 *
596 * NB: do not renumber these, certain codes are publicly used.
597 */
598enum {
599	HAL_DIAG_REVS		= 0,	/* MAC/PHY/Radio revs */
600	HAL_DIAG_EEPROM		= 1,	/* EEPROM contents */
601	HAL_DIAG_EEPROM_EXP_11A	= 2,	/* EEPROM 5112 power exp for 11a */
602	HAL_DIAG_EEPROM_EXP_11B	= 3,	/* EEPROM 5112 power exp for 11b */
603	HAL_DIAG_EEPROM_EXP_11G	= 4,	/* EEPROM 5112 power exp for 11g */
604	HAL_DIAG_ANI_CURRENT	= 5,	/* ANI current channel state */
605	HAL_DIAG_ANI_OFDM	= 6,	/* ANI OFDM timing error stats */
606	HAL_DIAG_ANI_CCK	= 7,	/* ANI CCK timing error stats */
607	HAL_DIAG_ANI_STATS	= 8,	/* ANI statistics */
608	HAL_DIAG_RFGAIN		= 9,	/* RfGain GAIN_VALUES */
609	HAL_DIAG_RFGAIN_CURSTEP	= 10,	/* RfGain GAIN_OPTIMIZATION_STEP */
610	HAL_DIAG_PCDAC		= 11,	/* PCDAC table */
611	HAL_DIAG_TXRATES	= 12,	/* Transmit rate table */
612	HAL_DIAG_REGS		= 13,	/* Registers */
613	HAL_DIAG_ANI_CMD	= 14,	/* ANI issue command (XXX do not change!) */
614	HAL_DIAG_SETKEY		= 15,	/* Set keycache backdoor */
615	HAL_DIAG_RESETKEY	= 16,	/* Reset keycache backdoor */
616	HAL_DIAG_EEREAD		= 17,	/* Read EEPROM word */
617	HAL_DIAG_EEWRITE	= 18,	/* Write EEPROM word */
618	/* 19-26 removed, do not reuse */
619	HAL_DIAG_RDWRITE	= 27,	/* Write regulatory domain */
620	HAL_DIAG_RDREAD		= 28,	/* Get regulatory domain */
621	HAL_DIAG_FATALERR	= 29,	/* Read cached interrupt state */
622	HAL_DIAG_11NCOMPAT	= 30,	/* 11n compatibility tweaks */
623	HAL_DIAG_ANI_PARAMS	= 31,	/* ANI noise immunity parameters */
624	HAL_DIAG_CHECK_HANGS	= 32,	/* check h/w hangs */
625	HAL_DIAG_SETREGS	= 33,	/* write registers */
626};
627
628enum {
629    HAL_BB_HANG_DFS		= 0x0001,
630    HAL_BB_HANG_RIFS		= 0x0002,
631    HAL_BB_HANG_RX_CLEAR	= 0x0004,
632    HAL_BB_HANG_UNKNOWN		= 0x0080,
633
634    HAL_MAC_HANG_SIG1		= 0x0100,
635    HAL_MAC_HANG_SIG2		= 0x0200,
636    HAL_MAC_HANG_UNKNOWN	= 0x8000,
637
638    HAL_BB_HANGS = HAL_BB_HANG_DFS
639		 | HAL_BB_HANG_RIFS
640		 | HAL_BB_HANG_RX_CLEAR
641		 | HAL_BB_HANG_UNKNOWN,
642    HAL_MAC_HANGS = HAL_MAC_HANG_SIG1
643		 | HAL_MAC_HANG_SIG2
644		 | HAL_MAC_HANG_UNKNOWN,
645};
646
647/*
648 * Device revision information.
649 */
650typedef struct {
651	uint16_t	ah_devid;		/* PCI device ID */
652	uint16_t	ah_subvendorid;		/* PCI subvendor ID */
653	uint32_t	ah_macVersion;		/* MAC version id */
654	uint16_t	ah_macRev;		/* MAC revision */
655	uint16_t	ah_phyRev;		/* PHY revision */
656	uint16_t	ah_analog5GhzRev;	/* 2GHz radio revision */
657	uint16_t	ah_analog2GhzRev;	/* 5GHz radio revision */
658} HAL_REVS;
659
660/*
661 * Argument payload for HAL_DIAG_SETKEY.
662 */
663typedef struct {
664	HAL_KEYVAL	dk_keyval;
665	uint16_t	dk_keyix;	/* key index */
666	uint8_t		dk_mac[IEEE80211_ADDR_LEN];
667	int		dk_xor;		/* XOR key data */
668} HAL_DIAG_KEYVAL;
669
670/*
671 * Argument payload for HAL_DIAG_EEWRITE.
672 */
673typedef struct {
674	uint16_t	ee_off;		/* eeprom offset */
675	uint16_t	ee_data;	/* write data */
676} HAL_DIAG_EEVAL;
677
678
679typedef struct {
680	u_int offset;		/* reg offset */
681	uint32_t val;		/* reg value  */
682} HAL_DIAG_REGVAL;
683
684/*
685 * 11n compatibility tweaks.
686 */
687#define	HAL_DIAG_11N_SERVICES	0x00000003
688#define	HAL_DIAG_11N_SERVICES_S	0
689#define	HAL_DIAG_11N_TXSTOMP	0x0000000c
690#define	HAL_DIAG_11N_TXSTOMP_S	2
691
692typedef struct {
693	int		maxNoiseImmunityLevel;	/* [0..4] */
694	int		totalSizeDesired[5];
695	int		coarseHigh[5];
696	int		coarseLow[5];
697	int		firpwr[5];
698
699	int		maxSpurImmunityLevel;	/* [0..7] */
700	int		cycPwrThr1[8];
701
702	int		maxFirstepLevel;	/* [0..2] */
703	int		firstep[3];
704
705	uint32_t	ofdmTrigHigh;
706	uint32_t	ofdmTrigLow;
707	int32_t		cckTrigHigh;
708	int32_t		cckTrigLow;
709	int32_t		rssiThrLow;
710	int32_t		rssiThrHigh;
711
712	int		period;			/* update listen period */
713} HAL_ANI_PARAMS;
714
715extern	HAL_BOOL ath_hal_getdiagstate(struct ath_hal *ah, int request,
716			const void *args, uint32_t argsize,
717			void **result, uint32_t *resultsize);
718
719/*
720 * Setup a h/w rate table for use.
721 */
722extern	void ath_hal_setupratetable(struct ath_hal *ah, HAL_RATE_TABLE *rt);
723
724/*
725 * Common routine for implementing getChanNoise api.
726 */
727int16_t	ath_hal_getChanNoise(struct ath_hal *, const struct ieee80211_channel *);
728
729/*
730 * Initialization support.
731 */
732typedef struct {
733	const uint32_t	*data;
734	int		rows, cols;
735} HAL_INI_ARRAY;
736
737#define	HAL_INI_INIT(_ia, _data, _cols) do {			\
738	(_ia)->data = (const uint32_t *)(_data);		\
739	(_ia)->rows = sizeof(_data) / sizeof((_data)[0]);	\
740	(_ia)->cols = (_cols);					\
741} while (0)
742#define	HAL_INI_VAL(_ia, _r, _c) \
743	((_ia)->data[((_r)*(_ia)->cols) + (_c)])
744
745/*
746 * OS_DELAY() does a PIO READ on the PCI bus which allows
747 * other cards' DMA reads to complete in the middle of our reset.
748 */
749#define DMA_YIELD(x) do {		\
750	if ((++(x) % 64) == 0)		\
751		OS_DELAY(1);		\
752} while (0)
753
754#define HAL_INI_WRITE_ARRAY(ah, regArray, col, regWr) do {             	\
755	int r;								\
756	for (r = 0; r < N(regArray); r++) {				\
757		OS_REG_WRITE(ah, (regArray)[r][0], (regArray)[r][col]);	\
758		DMA_YIELD(regWr);					\
759	}								\
760} while (0)
761
762#define HAL_INI_WRITE_BANK(ah, regArray, bankData, regWr) do {		\
763	int r;								\
764	for (r = 0; r < N(regArray); r++) {				\
765		OS_REG_WRITE(ah, (regArray)[r][0], (bankData)[r]);	\
766		DMA_YIELD(regWr);					\
767	}								\
768} while (0)
769
770extern	int ath_hal_ini_write(struct ath_hal *ah, const HAL_INI_ARRAY *ia,
771		int col, int regWr);
772extern	void ath_hal_ini_bank_setup(uint32_t data[], const HAL_INI_ARRAY *ia,
773		int col);
774extern	int ath_hal_ini_bank_write(struct ath_hal *ah, const HAL_INI_ARRAY *ia,
775		const uint32_t data[], int regWr);
776
777#define	CCK_SIFS_TIME		10
778#define	CCK_PREAMBLE_BITS	144
779#define	CCK_PLCP_BITS		48
780
781#define	OFDM_SIFS_TIME		16
782#define	OFDM_PREAMBLE_TIME	20
783#define	OFDM_PLCP_BITS		22
784#define	OFDM_SYMBOL_TIME	4
785
786#define	OFDM_HALF_SIFS_TIME	32
787#define	OFDM_HALF_PREAMBLE_TIME	40
788#define	OFDM_HALF_PLCP_BITS	22
789#define	OFDM_HALF_SYMBOL_TIME	8
790
791#define	OFDM_QUARTER_SIFS_TIME 		64
792#define	OFDM_QUARTER_PREAMBLE_TIME	80
793#define	OFDM_QUARTER_PLCP_BITS		22
794#define	OFDM_QUARTER_SYMBOL_TIME	16
795
796#define	TURBO_SIFS_TIME		8
797#define	TURBO_PREAMBLE_TIME	14
798#define	TURBO_PLCP_BITS		22
799#define	TURBO_SYMBOL_TIME	4
800
801#define	WLAN_CTRL_FRAME_SIZE	(2+2+6+4)	/* ACK+FCS */
802#endif /* _ATH_AH_INTERAL_H_ */
803