xref: /netbsd-src/sys/external/isc/atheros_hal/dist/ar5212/ar5413.c (revision 2861b6deffafa422feb35c086aa694566a75d9d8)
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: ar5413.c,v 1.4 2013/09/12 12:07:01 martin Exp $
18  */
19 #include "opt_ah.h"
20 
21 #include "ah.h"
22 #include "ah_internal.h"
23 
24 #include "ah_eeprom_v3.h"
25 
26 #include "ar5212/ar5212.h"
27 #include "ar5212/ar5212reg.h"
28 #include "ar5212/ar5212phy.h"
29 
30 #define AH_5212_5413
31 #include "ar5212/ar5212.ini"
32 
33 #define	N(a)	(sizeof(a)/sizeof(a[0]))
34 
35 struct ar5413State {
36 	RF_HAL_FUNCS	base;		/* public state, must be first */
37 	uint16_t	pcdacTable[PWR_TABLE_SIZE_2413];
38 
39 	uint32_t	Bank1Data[N(ar5212Bank1_5413)];
40 	uint32_t	Bank2Data[N(ar5212Bank2_5413)];
41 	uint32_t	Bank3Data[N(ar5212Bank3_5413)];
42 	uint32_t	Bank6Data[N(ar5212Bank6_5413)];
43 	uint32_t	Bank7Data[N(ar5212Bank7_5413)];
44 
45 	/*
46 	 * Private state for reduced stack usage.
47 	 */
48 	/* filled out Vpd table for all pdGains (chanL) */
49 	uint16_t vpdTable_L[MAX_NUM_PDGAINS_PER_CHANNEL]
50 			    [MAX_PWR_RANGE_IN_HALF_DB];
51 	/* filled out Vpd table for all pdGains (chanR) */
52 	uint16_t vpdTable_R[MAX_NUM_PDGAINS_PER_CHANNEL]
53 			    [MAX_PWR_RANGE_IN_HALF_DB];
54 	/* filled out Vpd table for all pdGains (interpolated) */
55 	uint16_t vpdTable_I[MAX_NUM_PDGAINS_PER_CHANNEL]
56 			    [MAX_PWR_RANGE_IN_HALF_DB];
57 };
58 #define	AR5413(ah)	((struct ar5413State *) AH5212(ah)->ah_rfHal)
59 
60 extern	void ar5212ModifyRfBuffer(uint32_t *rfBuf, uint32_t reg32,
61 		uint32_t numBits, uint32_t firstBit, uint32_t column);
62 
63 static void
ar5413WriteRegs(struct ath_hal * ah,u_int modesIndex,u_int freqIndex,int writes)64 ar5413WriteRegs(struct ath_hal *ah, u_int modesIndex, u_int freqIndex,
65 	int writes)
66 {
67 	HAL_INI_WRITE_ARRAY(ah, ar5212Modes_5413, modesIndex, writes);
68 	HAL_INI_WRITE_ARRAY(ah, ar5212Common_5413, 1, writes);
69 	HAL_INI_WRITE_ARRAY(ah, ar5212BB_RfGain_5413, freqIndex, writes);
70 }
71 
72 /*
73  * Take the MHz channel value and set the Channel value
74  *
75  * ASSUMES: Writes enabled to analog bus
76  */
77 static HAL_BOOL
ar5413SetChannel(struct ath_hal * ah,HAL_CHANNEL_INTERNAL * chan)78 ar5413SetChannel(struct ath_hal *ah,  HAL_CHANNEL_INTERNAL *chan)
79 {
80 	uint32_t channelSel  = 0;
81 	uint32_t bModeSynth  = 0;
82 	uint32_t aModeRefSel = 0;
83 	uint32_t reg32       = 0;
84 	uint16_t freq;
85 
86 	OS_MARK(ah, AH_MARK_SETCHANNEL, chan->channel);
87 
88 	if (chan->channel < 4800) {
89 		uint32_t txctl;
90 
91 		if (((chan->channel - 2192) % 5) == 0) {
92 			channelSel = ((chan->channel - 672) * 2 - 3040)/10;
93 			bModeSynth = 0;
94 		} else if (((chan->channel - 2224) % 5) == 0) {
95 			channelSel = ((chan->channel - 704) * 2 - 3040) / 10;
96 			bModeSynth = 1;
97 		} else {
98 			HALDEBUG(ah, HAL_DEBUG_ANY,
99 			    "%s: invalid channel %u MHz\n",
100 			    __func__, chan->channel);
101 			return AH_FALSE;
102 		}
103 
104 		channelSel = (channelSel << 2) & 0xff;
105 		channelSel = ath_hal_reverseBits(channelSel, 8);
106 
107 		txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
108 		if (chan->channel == 2484) {
109 			/* Enable channel spreading for channel 14 */
110 			OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
111 				txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
112 		} else {
113 			OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
114 				txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
115 		}
116 	} else if (((chan->channel % 5) == 2) && (chan->channel <= 5435)) {
117 		freq = chan->channel - 2; /* Align to even 5MHz raster */
118 		channelSel = ath_hal_reverseBits(
119 			(uint32_t)(((freq - 4800)*10)/25 + 1), 8);
120             	aModeRefSel = ath_hal_reverseBits(0, 2);
121 	} else if ((chan->channel % 20) == 0 && chan->channel >= 5120) {
122 		channelSel = ath_hal_reverseBits(
123 			((chan->channel - 4800) / 20 << 2), 8);
124 		aModeRefSel = ath_hal_reverseBits(1, 2);
125 	} else if ((chan->channel % 10) == 0) {
126 		channelSel = ath_hal_reverseBits(
127 			((chan->channel - 4800) / 10 << 1), 8);
128 		aModeRefSel = ath_hal_reverseBits(1, 2);
129 	} else if ((chan->channel % 5) == 0) {
130 		channelSel = ath_hal_reverseBits(
131 			(chan->channel - 4800) / 5, 8);
132 		aModeRefSel = ath_hal_reverseBits(1, 2);
133 	} else {
134 		HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel %u MHz\n",
135 		    __func__, chan->channel);
136 		return AH_FALSE;
137 	}
138 
139 	reg32 = (channelSel << 4) | (aModeRefSel << 2) | (bModeSynth << 1) |
140 			(1 << 12) | 0x1;
141 	OS_REG_WRITE(ah, AR_PHY(0x27), reg32 & 0xff);
142 
143 	reg32 >>= 8;
144 	OS_REG_WRITE(ah, AR_PHY(0x36), reg32 & 0x7f);
145 
146 	AH_PRIVATE(ah)->ah_curchan = chan;
147 	return AH_TRUE;
148 }
149 
150 /*
151  * Reads EEPROM header info from device structure and programs
152  * all rf registers
153  *
154  * REQUIRES: Access to the analog rf device
155  */
156 static HAL_BOOL
ar5413SetRfRegs(struct ath_hal * ah,HAL_CHANNEL_INTERNAL * chan,uint16_t modesIndex,uint16_t * rfXpdGain)157 ar5413SetRfRegs(struct ath_hal *ah, HAL_CHANNEL_INTERNAL *chan, uint16_t modesIndex, uint16_t *rfXpdGain)
158 {
159 #define	RF_BANK_SETUP(_priv, _ix, _col) do {				    \
160 	int i;								    \
161 	for (i = 0; i < N(ar5212Bank##_ix##_5413); i++)			    \
162 		(_priv)->Bank##_ix##Data[i] = ar5212Bank##_ix##_5413[i][_col];\
163 } while (0)
164 	struct ath_hal_5212 *ahp = AH5212(ah);
165 	const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
166 	uint16_t ob5GHz = 0, db5GHz = 0;
167 	uint16_t ob2GHz = 0, db2GHz = 0;
168 	struct ar5413State *priv = AR5413(ah);
169 	int regWrites = 0;
170 
171 	HALDEBUG(ah, HAL_DEBUG_RFPARAM,
172 	    "%s: chan 0x%x flag 0x%x modesIndex 0x%x\n",
173 	    __func__, chan->channel, chan->channelFlags, modesIndex);
174 
175 	HALASSERT(priv != AH_NULL);
176 
177 	/* Setup rf parameters */
178 	switch (chan->channelFlags & CHANNEL_ALL) {
179 	case CHANNEL_A:
180 	case CHANNEL_T:
181 		if (chan->channel > 4000 && chan->channel < 5260) {
182 			ob5GHz = ee->ee_ob1;
183 			db5GHz = ee->ee_db1;
184 		} else if (chan->channel >= 5260 && chan->channel < 5500) {
185 			ob5GHz = ee->ee_ob2;
186 			db5GHz = ee->ee_db2;
187 		} else if (chan->channel >= 5500 && chan->channel < 5725) {
188 			ob5GHz = ee->ee_ob3;
189 			db5GHz = ee->ee_db3;
190 		} else if (chan->channel >= 5725) {
191 			ob5GHz = ee->ee_ob4;
192 			db5GHz = ee->ee_db4;
193 		} else {
194 			/* XXX else */
195 		}
196 		break;
197 	case CHANNEL_B:
198 		ob2GHz = ee->ee_obFor24;
199 		db2GHz = ee->ee_dbFor24;
200 		break;
201 	case CHANNEL_G:
202 	case CHANNEL_108G:
203 		ob2GHz = ee->ee_obFor24g;
204 		db2GHz = ee->ee_dbFor24g;
205 		break;
206 	default:
207 		HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel flags 0x%x\n",
208 		    __func__, chan->channelFlags);
209 		return AH_FALSE;
210 	}
211 
212 	/* Bank 1 Write */
213 	RF_BANK_SETUP(priv, 1, 1);
214 
215 	/* Bank 2 Write */
216 	RF_BANK_SETUP(priv, 2, modesIndex);
217 
218 	/* Bank 3 Write */
219 	RF_BANK_SETUP(priv, 3, modesIndex);
220 
221 	/* Bank 6 Write */
222 	RF_BANK_SETUP(priv, 6, modesIndex);
223 
224     	/* Only the 5 or 2 GHz OB/DB need to be set for a mode */
225 	if (IS_CHAN_2GHZ(chan)) {
226         	ar5212ModifyRfBuffer(priv->Bank6Data, ob2GHz, 3, 241, 0);
227         	ar5212ModifyRfBuffer(priv->Bank6Data, db2GHz, 3, 238, 0);
228 
229 			/* TODO - only for Eagle 1.0 2GHz - remove for production */
230 			/* XXX: but without this bit G doesn't work. */
231 			ar5212ModifyRfBuffer(priv->Bank6Data, 1 , 1, 291, 2);
232 
233 			/* Optimum value for rf_pwd_iclobuf2G for PCIe chips only */
234 			if (AH_PRIVATE(ah)->ah_ispcie) {
235 				ar5212ModifyRfBuffer(priv->Bank6Data, ath_hal_reverseBits(6, 3),
236 						 3, 131, 3);
237 			}
238 	} else {
239         	ar5212ModifyRfBuffer(priv->Bank6Data, ob5GHz, 3, 247, 0);
240         	ar5212ModifyRfBuffer(priv->Bank6Data, db5GHz, 3, 244, 0);
241 
242 	}
243 
244 	/* Bank 7 Setup */
245 	RF_BANK_SETUP(priv, 7, modesIndex);
246 
247 	/* Write Analog registers */
248 	HAL_INI_WRITE_BANK(ah, ar5212Bank1_5413, priv->Bank1Data, regWrites);
249 	HAL_INI_WRITE_BANK(ah, ar5212Bank2_5413, priv->Bank2Data, regWrites);
250 	HAL_INI_WRITE_BANK(ah, ar5212Bank3_5413, priv->Bank3Data, regWrites);
251 	HAL_INI_WRITE_BANK(ah, ar5212Bank6_5413, priv->Bank6Data, regWrites);
252 	HAL_INI_WRITE_BANK(ah, ar5212Bank7_5413, priv->Bank7Data, regWrites);
253 
254 	/* Now that we have reprogrammed rfgain value, clear the flag. */
255 	ahp->ah_rfgainState = HAL_RFGAIN_INACTIVE;
256 
257 	return AH_TRUE;
258 #undef	RF_BANK_SETUP
259 }
260 
261 /*
262  * Return a reference to the requested RF Bank.
263  */
264 static uint32_t *
ar5413GetRfBank(struct ath_hal * ah,int bank)265 ar5413GetRfBank(struct ath_hal *ah, int bank)
266 {
267 	struct ar5413State *priv = AR5413(ah);
268 
269 	HALASSERT(priv != AH_NULL);
270 	switch (bank) {
271 	case 1: return priv->Bank1Data;
272 	case 2: return priv->Bank2Data;
273 	case 3: return priv->Bank3Data;
274 	case 6: return priv->Bank6Data;
275 	case 7: return priv->Bank7Data;
276 	}
277 	HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unknown RF Bank %d requested\n",
278 	    __func__, bank);
279 	return AH_NULL;
280 }
281 
282 /*
283  * Return indices surrounding the value in sorted integer lists.
284  *
285  * NB: the input list is assumed to be sorted in ascending order
286  */
287 static void
GetLowerUpperIndex(int16_t v,const uint16_t * lp,uint16_t listSize,uint32_t * vlo,uint32_t * vhi)288 GetLowerUpperIndex(int16_t v, const uint16_t *lp, uint16_t listSize,
289                           uint32_t *vlo, uint32_t *vhi)
290 {
291 	int16_t target = v;
292 	const uint16_t *ep = lp+listSize;
293 	const uint16_t *tp;
294 
295 	/*
296 	 * Check first and last elements for out-of-bounds conditions.
297 	 */
298 	if (target < lp[0]) {
299 		*vlo = *vhi = 0;
300 		return;
301 	}
302 	if (target >= ep[-1]) {
303 		*vlo = *vhi = listSize - 1;
304 		return;
305 	}
306 
307 	/* look for value being near or between 2 values in list */
308 	for (tp = lp; tp < ep; tp++) {
309 		/*
310 		 * If value is close to the current value of the list
311 		 * then target is not between values, it is one of the values
312 		 */
313 		if (*tp == target) {
314 			*vlo = *vhi = tp - (const uint16_t *) lp;
315 			return;
316 		}
317 		/*
318 		 * Look for value being between current value and next value
319 		 * if so return these 2 values
320 		 */
321 		if (target < tp[1]) {
322 			*vlo = tp - (const uint16_t *) lp;
323 			*vhi = *vlo + 1;
324 			return;
325 		}
326 	}
327 }
328 
329 /*
330  * Fill the Vpdlist for indices Pmax-Pmin
331  */
332 static HAL_BOOL
ar5413FillVpdTable(uint32_t pdGainIdx,int16_t Pmin,int16_t Pmax,const int16_t * pwrList,const uint16_t * VpdList,uint16_t numIntercepts,uint16_t retVpdList[][64])333 ar5413FillVpdTable(uint32_t pdGainIdx, int16_t Pmin, int16_t  Pmax,
334 		   const int16_t *pwrList, const uint16_t *VpdList,
335 		   uint16_t numIntercepts,
336 		   uint16_t retVpdList[][64])
337 {
338 	uint16_t ii, kk;
339 	int16_t currPwr = (int16_t)(2*Pmin);
340 	/* since Pmin is pwr*2 and pwrList is 4*pwr */
341 	uint32_t  idxL = 0, idxR = 0;
342 
343 	ii = 0;
344 
345 	if (numIntercepts < 2)
346 		return AH_FALSE;
347 
348 	while (ii <= (uint16_t)(Pmax - Pmin)) {
349 		GetLowerUpperIndex(currPwr, (const uint16_t *) pwrList,
350 				   numIntercepts, &(idxL), &(idxR));
351 		if (idxR < 1)
352 			idxR = 1;			/* extrapolate below */
353 		if (idxL == (uint32_t)(numIntercepts - 1))
354 			idxL = numIntercepts - 2;	/* extrapolate above */
355 		if (pwrList[idxL] == pwrList[idxR])
356 			kk = VpdList[idxL];
357 		else
358 			kk = (uint16_t)
359 				(((currPwr - pwrList[idxL])*VpdList[idxR]+
360 				  (pwrList[idxR] - currPwr)*VpdList[idxL])/
361 				 (pwrList[idxR] - pwrList[idxL]));
362 		retVpdList[pdGainIdx][ii] = kk;
363 		ii++;
364 		currPwr += 2;				/* half dB steps */
365 	}
366 
367 	return AH_TRUE;
368 }
369 
370 /*
371  * Returns interpolated or the scaled up interpolated value
372  */
373 static int16_t
interpolate_signed(uint16_t target,uint16_t srcLeft,uint16_t srcRight,int16_t targetLeft,int16_t targetRight)374 interpolate_signed(uint16_t target, uint16_t srcLeft, uint16_t srcRight,
375 	int16_t targetLeft, int16_t targetRight)
376 {
377 	int16_t rv;
378 
379 	if (srcRight != srcLeft) {
380 		rv = ((target - srcLeft)*targetRight +
381 		      (srcRight - target)*targetLeft) / (srcRight - srcLeft);
382 	} else {
383 		rv = targetLeft;
384 	}
385 	return rv;
386 }
387 
388 /*
389  * Uses the data points read from EEPROM to reconstruct the pdadc power table
390  * Called by ar5413SetPowerTable()
391  */
392 static int
ar5413getGainBoundariesAndPdadcsForPowers(struct ath_hal * ah,uint16_t channel,const RAW_DATA_STRUCT_2413 * pRawDataset,uint16_t pdGainOverlap_t2,int16_t * pMinCalPower,uint16_t pPdGainBoundaries[],uint16_t pPdGainValues[],uint16_t pPDADCValues[])393 ar5413getGainBoundariesAndPdadcsForPowers(struct ath_hal *ah, uint16_t channel,
394 		const RAW_DATA_STRUCT_2413 *pRawDataset,
395 		uint16_t pdGainOverlap_t2,
396 		int16_t  *pMinCalPower, uint16_t pPdGainBoundaries[],
397 		uint16_t pPdGainValues[], uint16_t pPDADCValues[])
398 {
399 	struct ar5413State *priv = AR5413(ah);
400 #define	VpdTable_L	priv->vpdTable_L
401 #define	VpdTable_R	priv->vpdTable_R
402 #define	VpdTable_I	priv->vpdTable_I
403 	uint32_t ii, jj, kk;
404 	int32_t ss;/* potentially -ve index for taking care of pdGainOverlap */
405 	uint32_t idxL = 0, idxR = 0;
406 	uint32_t numPdGainsUsed = 0;
407 	/*
408 	 * If desired to support -ve power levels in future, just
409 	 * change pwr_I_0 to signed 5-bits.
410 	 */
411 	int16_t Pmin_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
412 	/* to accomodate -ve power levels later on. */
413 	int16_t Pmax_t2[MAX_NUM_PDGAINS_PER_CHANNEL];
414 	/* to accomodate -ve power levels later on */
415 	uint16_t numVpd = 0;
416 	uint16_t Vpd_step;
417 	int16_t tmpVal ;
418 	uint32_t sizeCurrVpdTable, maxIndex, tgtIndex;
419 
420 	/* Get upper lower index */
421 	GetLowerUpperIndex(channel, pRawDataset->pChannels,
422 				 pRawDataset->numChannels, &(idxL), &(idxR));
423 
424 	for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
425 		jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
426 		/* work backwards 'cause highest pdGain for lowest power */
427 		numVpd = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].numVpd;
428 		if (numVpd > 0) {
429 			pPdGainValues[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pd_gain;
430 			Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0];
431 			if (Pmin_t2[numPdGainsUsed] >pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]) {
432 				Pmin_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0];
433 			}
434 			Pmin_t2[numPdGainsUsed] = (int16_t)
435 				(Pmin_t2[numPdGainsUsed] / 2);
436 			Pmax_t2[numPdGainsUsed] = pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[numVpd-1];
437 			if (Pmax_t2[numPdGainsUsed] > pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1])
438 				Pmax_t2[numPdGainsUsed] =
439 					pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[numVpd-1];
440 			Pmax_t2[numPdGainsUsed] = (int16_t)(Pmax_t2[numPdGainsUsed] / 2);
441 			ar5413FillVpdTable(
442 					   numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
443 					   &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].pwr_t4[0]),
444 					   &(pRawDataset->pDataPerChannel[idxL].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_L
445 					   );
446 			ar5413FillVpdTable(
447 					   numPdGainsUsed, Pmin_t2[numPdGainsUsed], Pmax_t2[numPdGainsUsed],
448 					   &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].pwr_t4[0]),
449 					   &(pRawDataset->pDataPerChannel[idxR].pDataPerPDGain[jj].Vpd[0]), numVpd, VpdTable_R
450 					   );
451 			for (kk = 0; kk < (uint16_t)(Pmax_t2[numPdGainsUsed] - Pmin_t2[numPdGainsUsed]); kk++) {
452 				VpdTable_I[numPdGainsUsed][kk] =
453 					interpolate_signed(
454 							   channel, pRawDataset->pChannels[idxL], pRawDataset->pChannels[idxR],
455 							   (int16_t)VpdTable_L[numPdGainsUsed][kk], (int16_t)VpdTable_R[numPdGainsUsed][kk]);
456 			}
457 			/* fill VpdTable_I for this pdGain */
458 			numPdGainsUsed++;
459 		}
460 		/* if this pdGain is used */
461 	}
462 
463 	*pMinCalPower = Pmin_t2[0];
464 	kk = 0; /* index for the final table */
465 	for (ii = 0; ii < numPdGainsUsed; ii++) {
466 		if (ii == (numPdGainsUsed - 1))
467 			pPdGainBoundaries[ii] = Pmax_t2[ii] +
468 				PD_GAIN_BOUNDARY_STRETCH_IN_HALF_DB;
469 		else
470 			pPdGainBoundaries[ii] = (uint16_t)
471 				((Pmax_t2[ii] + Pmin_t2[ii+1]) / 2 );
472 		if (pPdGainBoundaries[ii] > 63) {
473 			HALDEBUG(ah, HAL_DEBUG_ANY,
474 			    "%s: clamp pPdGainBoundaries[%d] %d\n",
475 			    __func__, ii, pPdGainBoundaries[ii]);/*XXX*/
476 			pPdGainBoundaries[ii] = 63;
477 		}
478 
479 		/* Find starting index for this pdGain */
480 		if (ii == 0)
481 			ss = 0; /* for the first pdGain, start from index 0 */
482 		else
483 			ss = (pPdGainBoundaries[ii-1] - Pmin_t2[ii]) -
484 				pdGainOverlap_t2;
485 		Vpd_step = (uint16_t)(VpdTable_I[ii][1] - VpdTable_I[ii][0]);
486 		Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
487 		/*
488 		 *-ve ss indicates need to extrapolate data below for this pdGain
489 		 */
490 		while (ss < 0) {
491 			tmpVal = (int16_t)(VpdTable_I[ii][0] + ss*Vpd_step);
492 			pPDADCValues[kk++] = (uint16_t)((tmpVal < 0) ? 0 : tmpVal);
493 			ss++;
494 		}
495 
496 		sizeCurrVpdTable = Pmax_t2[ii] - Pmin_t2[ii];
497 		tgtIndex = pPdGainBoundaries[ii] + pdGainOverlap_t2 - Pmin_t2[ii];
498 		maxIndex = (tgtIndex < sizeCurrVpdTable) ? tgtIndex : sizeCurrVpdTable;
499 
500 		while (ss < (int16_t)maxIndex)
501 			pPDADCValues[kk++] = VpdTable_I[ii][ss++];
502 
503 		Vpd_step = (uint16_t)(VpdTable_I[ii][sizeCurrVpdTable-1] -
504 				       VpdTable_I[ii][sizeCurrVpdTable-2]);
505 		Vpd_step = (uint16_t)((Vpd_step < 1) ? 1 : Vpd_step);
506 		/*
507 		 * for last gain, pdGainBoundary == Pmax_t2, so will
508 		 * have to extrapolate
509 		 */
510 		if (tgtIndex > maxIndex) {	/* need to extrapolate above */
511 			while(ss < (int16_t)tgtIndex) {
512 				tmpVal = (uint16_t)
513 					(VpdTable_I[ii][sizeCurrVpdTable-1] +
514 					 (ss-maxIndex)*Vpd_step);
515 				pPDADCValues[kk++] = (tmpVal > 127) ?
516 					127 : tmpVal;
517 				ss++;
518 			}
519 		}				/* extrapolated above */
520 	}					/* for all pdGainUsed */
521 
522 	while (ii < MAX_NUM_PDGAINS_PER_CHANNEL) {
523 		pPdGainBoundaries[ii] = pPdGainBoundaries[ii-1];
524 		ii++;
525 	}
526 	while (kk < 128) {
527 		pPDADCValues[kk] = pPDADCValues[kk-1];
528 		kk++;
529 	}
530 
531 	return numPdGainsUsed;
532 #undef VpdTable_L
533 #undef VpdTable_R
534 #undef VpdTable_I
535 }
536 
537 static HAL_BOOL
ar5413SetPowerTable(struct ath_hal * ah,int16_t * minPower,int16_t * maxPower,HAL_CHANNEL_INTERNAL * chan,uint16_t * rfXpdGain)538 ar5413SetPowerTable(struct ath_hal *ah,
539 	int16_t *minPower, int16_t *maxPower, HAL_CHANNEL_INTERNAL *chan,
540 	uint16_t *rfXpdGain)
541 {
542 	struct ath_hal_5212 *ahp = AH5212(ah);
543 	const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
544 	const RAW_DATA_STRUCT_2413 *pRawDataset = AH_NULL;
545 	uint16_t pdGainOverlap_t2;
546 	int16_t minCalPower5413_t2;
547 	uint16_t *pdadcValues = ahp->ah_pcdacTable;
548 	uint16_t gainBoundaries[4];
549 	uint32_t reg32, regoffset;
550 	int i, numPdGainsUsed;
551 #ifndef AH_USE_INIPDGAIN
552 	uint32_t tpcrg1;
553 #endif
554 
555 	HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: chan 0x%x flag 0x%x\n",
556 	    __func__, chan->channel,chan->channelFlags);
557 
558 	if (IS_CHAN_G(chan) || IS_CHAN_108G(chan))
559 		pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
560 	else if (IS_CHAN_B(chan))
561 		pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
562 	else {
563 		HALASSERT(IS_CHAN_5GHZ(chan));
564 		pRawDataset = &ee->ee_rawDataset2413[headerInfo11A];
565 	}
566 
567 	pdGainOverlap_t2 = (uint16_t) SM(OS_REG_READ(ah, AR_PHY_TPCRG5),
568 					  AR_PHY_TPCRG5_PD_GAIN_OVERLAP);
569 
570 	numPdGainsUsed = ar5413getGainBoundariesAndPdadcsForPowers(ah,
571 		chan->channel, pRawDataset, pdGainOverlap_t2,
572 		&minCalPower5413_t2,gainBoundaries, rfXpdGain, pdadcValues);
573 	HALASSERT(1 <= numPdGainsUsed && numPdGainsUsed <= 3);
574 
575 #ifdef AH_USE_INIPDGAIN
576 	/*
577 	 * Use pd_gains curve from eeprom; Atheros always uses
578 	 * the default curve from the ini file but some vendors
579 	 * (e.g. Zcomax) want to override this curve and not
580 	 * honoring their settings results in tx power 5dBm low.
581 	 */
582 	OS_REG_RMW_FIELD(ah, AR_PHY_TPCRG1, AR_PHY_TPCRG1_NUM_PD_GAIN,
583 			 (pRawDataset->pDataPerChannel[0].numPdGains - 1));
584 #else
585 	tpcrg1 = OS_REG_READ(ah, AR_PHY_TPCRG1);
586 	tpcrg1 = (tpcrg1 &~ AR_PHY_TPCRG1_NUM_PD_GAIN)
587 		  | SM(numPdGainsUsed-1, AR_PHY_TPCRG1_NUM_PD_GAIN);
588 	switch (numPdGainsUsed) {
589 	case 3:
590 		tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING3;
591 		tpcrg1 |= SM(rfXpdGain[2], AR_PHY_TPCRG1_PDGAIN_SETTING3);
592 		/* fall thru... */
593 	case 2:
594 		tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING2;
595 		tpcrg1 |= SM(rfXpdGain[1], AR_PHY_TPCRG1_PDGAIN_SETTING2);
596 		/* fall thru... */
597 	case 1:
598 		tpcrg1 &= ~AR_PHY_TPCRG1_PDGAIN_SETTING1;
599 		tpcrg1 |= SM(rfXpdGain[0], AR_PHY_TPCRG1_PDGAIN_SETTING1);
600 		break;
601 	}
602 #ifdef AH_DEBUG
603 	if (tpcrg1 != OS_REG_READ(ah, AR_PHY_TPCRG1))
604 		HALDEBUG(ah, HAL_DEBUG_RFPARAM, "%s: using non-default "
605 		    "pd_gains (default 0x%x, calculated 0x%x)\n",
606 		    __func__, OS_REG_READ(ah, AR_PHY_TPCRG1), tpcrg1);
607 #endif
608 	OS_REG_WRITE(ah, AR_PHY_TPCRG1, tpcrg1);
609 #endif
610 
611 	/*
612 	 * Note the pdadc table may not start at 0 dBm power, could be
613 	 * negative or greater than 0.  Need to offset the power
614 	 * values by the amount of minPower for griffin
615 	 */
616 	if (minCalPower5413_t2 != 0)
617 		ahp->ah_txPowerIndexOffset = (int16_t)(0 - minCalPower5413_t2);
618 	else
619 		ahp->ah_txPowerIndexOffset = 0;
620 
621 	/* Finally, write the power values into the baseband power table */
622 	regoffset = 0x9800 + (672 <<2); /* beginning of pdadc table in griffin */
623 	for (i = 0; i < 32; i++) {
624 		reg32 = ((pdadcValues[4*i + 0] & 0xFF) << 0)  |
625 			((pdadcValues[4*i + 1] & 0xFF) << 8)  |
626 			((pdadcValues[4*i + 2] & 0xFF) << 16) |
627 			((pdadcValues[4*i + 3] & 0xFF) << 24) ;
628 		OS_REG_WRITE(ah, regoffset, reg32);
629 		regoffset += 4;
630 	}
631 
632 	OS_REG_WRITE(ah, AR_PHY_TPCRG5,
633 		     SM(pdGainOverlap_t2, AR_PHY_TPCRG5_PD_GAIN_OVERLAP) |
634 		     SM(gainBoundaries[0], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_1) |
635 		     SM(gainBoundaries[1], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_2) |
636 		     SM(gainBoundaries[2], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_3) |
637 		     SM(gainBoundaries[3], AR_PHY_TPCRG5_PD_GAIN_BOUNDARY_4));
638 
639 	return AH_TRUE;
640 }
641 
642 static int16_t
ar5413GetMinPower(struct ath_hal * ah,const RAW_DATA_PER_CHANNEL_2413 * data)643 ar5413GetMinPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2413 *data)
644 {
645 	uint32_t ii,jj;
646 	uint16_t Pmin=0,numVpd;
647 
648 	for (ii = 0; ii < MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
649 		jj = MAX_NUM_PDGAINS_PER_CHANNEL - ii - 1;
650 		/* work backwards 'cause highest pdGain for lowest power */
651 		numVpd = data->pDataPerPDGain[jj].numVpd;
652 		if (numVpd > 0) {
653 			Pmin = data->pDataPerPDGain[jj].pwr_t4[0];
654 			return(Pmin);
655 		}
656 	}
657 	return(Pmin);
658 }
659 
660 static int16_t
ar5413GetMaxPower(struct ath_hal * ah,const RAW_DATA_PER_CHANNEL_2413 * data)661 ar5413GetMaxPower(struct ath_hal *ah, const RAW_DATA_PER_CHANNEL_2413 *data)
662 {
663 	uint32_t ii;
664 	uint16_t Pmax=0,numVpd;
665 
666 	for (ii=0; ii< MAX_NUM_PDGAINS_PER_CHANNEL; ii++) {
667 		/* work forwards cuase lowest pdGain for highest power */
668 		numVpd = data->pDataPerPDGain[ii].numVpd;
669 		if (numVpd > 0) {
670 			Pmax = data->pDataPerPDGain[ii].pwr_t4[numVpd-1];
671 			return(Pmax);
672 		}
673 	}
674 	return(Pmax);
675 }
676 
677 static HAL_BOOL
ar5413GetChannelMaxMinPower(struct ath_hal * ah,HAL_CHANNEL * chan,int16_t * maxPow,int16_t * minPow)678 ar5413GetChannelMaxMinPower(struct ath_hal *ah, HAL_CHANNEL *chan,
679 	int16_t *maxPow, int16_t *minPow)
680 {
681 	const HAL_EEPROM *ee = AH_PRIVATE(ah)->ah_eeprom;
682 	const RAW_DATA_STRUCT_2413 *pRawDataset = AH_NULL;
683 	const RAW_DATA_PER_CHANNEL_2413 *data=AH_NULL;
684 	uint16_t numChannels;
685 	int totalD,totalF, totalMin,last, i;
686 
687 	*maxPow = 0;
688 
689 	if (IS_CHAN_G(chan) || IS_CHAN_108G(chan))
690 		pRawDataset = &ee->ee_rawDataset2413[headerInfo11G];
691 	else if (IS_CHAN_B(chan))
692 		pRawDataset = &ee->ee_rawDataset2413[headerInfo11B];
693 	else {
694 		HALASSERT(IS_CHAN_5GHZ(chan));
695 		pRawDataset = &ee->ee_rawDataset2413[headerInfo11A];
696 	}
697 
698 	numChannels = pRawDataset->numChannels;
699 	data = pRawDataset->pDataPerChannel;
700 
701 	/* Make sure the channel is in the range of the TP values
702 	 *  (freq piers)
703 	 */
704 	if (numChannels < 1)
705 		return(AH_FALSE);
706 
707 	if ((chan->channel < data[0].channelValue) ||
708 	    (chan->channel > data[numChannels-1].channelValue)) {
709 		if (chan->channel < data[0].channelValue) {
710 			*maxPow = ar5413GetMaxPower(ah, &data[0]);
711 			*minPow = ar5413GetMinPower(ah, &data[0]);
712 			return(AH_TRUE);
713 		} else {
714 			*maxPow = ar5413GetMaxPower(ah, &data[numChannels - 1]);
715 			*minPow = ar5413GetMinPower(ah, &data[numChannels - 1]);
716 			return(AH_TRUE);
717 		}
718 	}
719 
720 	/* Linearly interpolate the power value now */
721 	for (last=0,i=0; (i<numChannels) && (chan->channel > data[i].channelValue);
722 	     last = i++);
723 	totalD = data[i].channelValue - data[last].channelValue;
724 	if (totalD > 0) {
725 		totalF = ar5413GetMaxPower(ah, &data[i]) - ar5413GetMaxPower(ah, &data[last]);
726 		*maxPow = (int8_t) ((totalF*(chan->channel-data[last].channelValue) +
727 				     ar5413GetMaxPower(ah, &data[last])*totalD)/totalD);
728 		totalMin = ar5413GetMinPower(ah, &data[i]) - ar5413GetMinPower(ah, &data[last]);
729 		*minPow = (int8_t) ((totalMin*(chan->channel-data[last].channelValue) +
730 				     ar5413GetMinPower(ah, &data[last])*totalD)/totalD);
731 		return(AH_TRUE);
732 	} else {
733 		if (chan->channel == data[i].channelValue) {
734 			*maxPow = ar5413GetMaxPower(ah, &data[i]);
735 			*minPow = ar5413GetMinPower(ah, &data[i]);
736 			return(AH_TRUE);
737 		} else
738 			return(AH_FALSE);
739 	}
740 }
741 
742 /*
743  * Free memory for analog bank scratch buffers
744  */
745 static void
ar5413RfDetach(struct ath_hal * ah)746 ar5413RfDetach(struct ath_hal *ah)
747 {
748 	struct ath_hal_5212 *ahp = AH5212(ah);
749 
750 	HALASSERT(ahp->ah_rfHal != AH_NULL);
751 	ath_hal_free(ahp->ah_rfHal);
752 	ahp->ah_rfHal = AH_NULL;
753 }
754 
755 /*
756  * Allocate memory for analog bank scratch buffers
757  * Scratch Buffer will be reinitialized every reset so no need to zero now
758  */
759 static HAL_BOOL
ar5413RfAttach(struct ath_hal * ah,HAL_STATUS * status)760 ar5413RfAttach(struct ath_hal *ah, HAL_STATUS *status)
761 {
762 	struct ath_hal_5212 *ahp = AH5212(ah);
763 	struct ar5413State *priv;
764 
765 	HALASSERT(ah->ah_magic == AR5212_MAGIC);
766 
767 	HALASSERT(ahp->ah_rfHal == AH_NULL);
768 	priv = ath_hal_malloc(sizeof(struct ar5413State));
769 	if (priv == AH_NULL) {
770 		HALDEBUG(ah, HAL_DEBUG_ANY,
771 		    "%s: cannot allocate private state\n", __func__);
772 		*status = HAL_ENOMEM;		/* XXX */
773 		return AH_FALSE;
774 	}
775 	priv->base.rfDetach		= ar5413RfDetach;
776 	priv->base.writeRegs		= ar5413WriteRegs;
777 	priv->base.getRfBank		= ar5413GetRfBank;
778 	priv->base.setChannel		= ar5413SetChannel;
779 	priv->base.setRfRegs		= ar5413SetRfRegs;
780 	priv->base.setPowerTable	= ar5413SetPowerTable;
781 	priv->base.getChannelMaxMinPower = ar5413GetChannelMaxMinPower;
782 	priv->base.getNfAdjust		= ar5212GetNfAdjust;
783 
784 	ahp->ah_pcdacTable = priv->pcdacTable;
785 	ahp->ah_pcdacTableSize = sizeof(priv->pcdacTable);
786 	ahp->ah_rfHal = &priv->base;
787 
788 	return AH_TRUE;
789 }
790 
791 static HAL_BOOL
ar5413Probe(struct ath_hal * ah)792 ar5413Probe(struct ath_hal *ah)
793 {
794 	return IS_5413(ah);
795 }
796 AH_RF(RF5413, ar5413Probe, ar5413RfAttach);
797