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: ar2133.c,v 1.1.1.1 2008/12/11 04:46:46 alc Exp $
18 */
19 #include "opt_ah.h"
20
21 #include "ah.h"
22 #include "ah_internal.h"
23
24 #include "ah_eeprom_v14.h"
25
26 #include "ar5416/ar5416.h"
27 #include "ar5416/ar5416reg.h"
28 #include "ar5416/ar5416phy.h"
29
30 #define N(a) (sizeof(a)/sizeof(a[0]))
31
32 struct ar2133State {
33 RF_HAL_FUNCS base; /* public state, must be first */
34 uint16_t pcdacTable[1];
35
36 uint32_t *Bank0Data;
37 uint32_t *Bank1Data;
38 uint32_t *Bank2Data;
39 uint32_t *Bank3Data;
40 uint32_t *Bank6Data;
41 uint32_t *Bank7Data;
42
43 /* NB: Bank*Data storage follows */
44 };
45 #define AR2133(ah) ((struct ar2133State *) AH5212(ah)->ah_rfHal)
46
47 #define ar5416ModifyRfBuffer ar5212ModifyRfBuffer /*XXX*/
48
49 extern void ar5416ModifyRfBuffer(uint32_t *rfBuf, uint32_t reg32,
50 uint32_t numBits, uint32_t firstBit, uint32_t column);
51 HAL_BOOL ar2133GetChipPowerLimits(struct ath_hal *ah, HAL_CHANNEL
52 *chans, uint32_t nchans);
53
54 static HAL_BOOL ar2133GetChannelMaxMinPower(struct ath_hal *, HAL_CHANNEL *,
55 int16_t *maxPow,int16_t *minPow);
56 int16_t ar2133GetNfAdjust(struct ath_hal *ah, const HAL_CHANNEL_INTERNAL *c);
57
58 static void
ar2133WriteRegs(struct ath_hal * ah,u_int modesIndex,u_int freqIndex,int writes)59 ar2133WriteRegs(struct ath_hal *ah, u_int modesIndex, u_int freqIndex,
60 int writes)
61 {
62 (void) ath_hal_ini_write(ah, &AH5416(ah)->ah_ini_bb_rfgain,
63 freqIndex, writes);
64 }
65
66 /*
67 * Take the MHz channel value and set the Channel value
68 *
69 * ASSUMES: Writes enabled to analog bus
70 */
71 static HAL_BOOL
ar2133SetChannel(struct ath_hal * ah,HAL_CHANNEL_INTERNAL * chan)72 ar2133SetChannel(struct ath_hal *ah, HAL_CHANNEL_INTERNAL *chan)
73 {
74 uint32_t channelSel = 0;
75 uint32_t bModeSynth = 0;
76 uint32_t aModeRefSel = 0;
77 uint32_t reg32 = 0;
78 uint16_t freq;
79 CHAN_CENTERS centers;
80
81 OS_MARK(ah, AH_MARK_SETCHANNEL, chan->channel);
82
83 ar5416GetChannelCenters(ah, chan, ¢ers);
84 freq = centers.synth_center;
85
86 if (freq < 4800) {
87 uint32_t txctl;
88
89 if (((freq - 2192) % 5) == 0) {
90 channelSel = ((freq - 672) * 2 - 3040)/10;
91 bModeSynth = 0;
92 } else if (((freq - 2224) % 5) == 0) {
93 channelSel = ((freq - 704) * 2 - 3040) / 10;
94 bModeSynth = 1;
95 } else {
96 HALDEBUG(ah, HAL_DEBUG_ANY,
97 "%s: invalid channel %u MHz\n", __func__, freq);
98 return AH_FALSE;
99 }
100
101 channelSel = (channelSel << 2) & 0xff;
102 channelSel = ath_hal_reverseBits(channelSel, 8);
103
104 txctl = OS_REG_READ(ah, AR_PHY_CCK_TX_CTRL);
105 if (freq == 2484) {
106 /* Enable channel spreading for channel 14 */
107 OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
108 txctl | AR_PHY_CCK_TX_CTRL_JAPAN);
109 } else {
110 OS_REG_WRITE(ah, AR_PHY_CCK_TX_CTRL,
111 txctl &~ AR_PHY_CCK_TX_CTRL_JAPAN);
112 }
113 } else if ((freq % 20) == 0 && freq >= 5120) {
114 channelSel = ath_hal_reverseBits(((freq - 4800) / 20 << 2), 8);
115 if (AR_SREV_SOWL_10_OR_LATER(ah))
116 aModeRefSel = ath_hal_reverseBits(3, 2);
117 else
118 aModeRefSel = ath_hal_reverseBits(1, 2);
119 } else if ((freq % 10) == 0) {
120 channelSel = ath_hal_reverseBits(((freq - 4800) / 10 << 1), 8);
121 if (AR_SREV_SOWL_10_OR_LATER(ah))
122 aModeRefSel = ath_hal_reverseBits(2, 2);
123 else
124 aModeRefSel = ath_hal_reverseBits(1, 2);
125 } else if ((freq % 5) == 0) {
126 channelSel = ath_hal_reverseBits((freq - 4800) / 5, 8);
127 aModeRefSel = ath_hal_reverseBits(1, 2);
128 } else {
129 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: invalid channel %u MHz\n",
130 __func__, freq);
131 return AH_FALSE;
132 }
133
134 reg32 = (channelSel << 8) | (aModeRefSel << 2) | (bModeSynth << 1) |
135 (1 << 5) | 0x1;
136
137 OS_REG_WRITE(ah, AR_PHY(0x37), reg32);
138
139 AH_PRIVATE(ah)->ah_curchan = chan;
140 return AH_TRUE;
141
142 }
143
144 /*
145 * Return a reference to the requested RF Bank.
146 */
147 static uint32_t *
ar2133GetRfBank(struct ath_hal * ah,int bank)148 ar2133GetRfBank(struct ath_hal *ah, int bank)
149 {
150 struct ar2133State *priv = AR2133(ah);
151
152 HALASSERT(priv != AH_NULL);
153 switch (bank) {
154 case 1: return priv->Bank1Data;
155 case 2: return priv->Bank2Data;
156 case 3: return priv->Bank3Data;
157 case 6: return priv->Bank6Data;
158 case 7: return priv->Bank7Data;
159 }
160 HALDEBUG(ah, HAL_DEBUG_ANY, "%s: unknown RF Bank %d requested\n",
161 __func__, bank);
162 return AH_NULL;
163 }
164
165 /*
166 * Reads EEPROM header info from device structure and programs
167 * all rf registers
168 *
169 * REQUIRES: Access to the analog rf device
170 */
171 static HAL_BOOL
ar2133SetRfRegs(struct ath_hal * ah,HAL_CHANNEL_INTERNAL * chan,uint16_t modesIndex,uint16_t * rfXpdGain)172 ar2133SetRfRegs(struct ath_hal *ah, HAL_CHANNEL_INTERNAL *chan,
173 uint16_t modesIndex, uint16_t *rfXpdGain)
174 {
175 struct ar2133State *priv = AR2133(ah);
176 int writes;
177
178 HALASSERT(priv);
179
180 /* Setup Bank 0 Write */
181 ath_hal_ini_bank_setup(priv->Bank0Data, &AH5416(ah)->ah_ini_bank0, 1);
182
183 /* Setup Bank 1 Write */
184 ath_hal_ini_bank_setup(priv->Bank1Data, &AH5416(ah)->ah_ini_bank1, 1);
185
186 /* Setup Bank 2 Write */
187 ath_hal_ini_bank_setup(priv->Bank2Data, &AH5416(ah)->ah_ini_bank2, 1);
188
189 /* Setup Bank 3 Write */
190 ath_hal_ini_bank_setup(priv->Bank3Data, &AH5416(ah)->ah_ini_bank3, modesIndex);
191
192 /* Setup Bank 6 Write */
193 ath_hal_ini_bank_setup(priv->Bank6Data, &AH5416(ah)->ah_ini_bank6, modesIndex);
194
195 /* Only the 5 or 2 GHz OB/DB need to be set for a mode */
196 if (IS_CHAN_2GHZ(chan)) {
197 ar5416ModifyRfBuffer(priv->Bank6Data,
198 ath_hal_eepromGet(ah, AR_EEP_OB_2, AH_NULL), 3, 197, 0);
199 ar5416ModifyRfBuffer(priv->Bank6Data,
200 ath_hal_eepromGet(ah, AR_EEP_DB_2, AH_NULL), 3, 194, 0);
201 } else {
202 ar5416ModifyRfBuffer(priv->Bank6Data,
203 ath_hal_eepromGet(ah, AR_EEP_OB_5, AH_NULL), 3, 203, 0);
204 ar5416ModifyRfBuffer(priv->Bank6Data,
205 ath_hal_eepromGet(ah, AR_EEP_DB_5, AH_NULL), 3, 200, 0);
206 }
207 /* Setup Bank 7 Setup */
208 ath_hal_ini_bank_setup(priv->Bank7Data, &AH5416(ah)->ah_ini_bank7, 1);
209
210 /* Write Analog registers */
211 writes = ath_hal_ini_bank_write(ah, &AH5416(ah)->ah_ini_bank0,
212 priv->Bank0Data, 0);
213 writes = ath_hal_ini_bank_write(ah, &AH5416(ah)->ah_ini_bank1,
214 priv->Bank1Data, writes);
215 writes = ath_hal_ini_bank_write(ah, &AH5416(ah)->ah_ini_bank2,
216 priv->Bank2Data, writes);
217 writes = ath_hal_ini_bank_write(ah, &AH5416(ah)->ah_ini_bank3,
218 priv->Bank3Data, writes);
219 writes = ath_hal_ini_bank_write(ah, &AH5416(ah)->ah_ini_bank6,
220 priv->Bank6Data, writes);
221 (void) ath_hal_ini_bank_write(ah, &AH5416(ah)->ah_ini_bank7,
222 priv->Bank7Data, writes);
223
224 return AH_TRUE;
225 #undef RF_BANK_SETUP
226 }
227
228 /*
229 * Read the transmit power levels from the structures taken from EEPROM
230 * Interpolate read transmit power values for this channel
231 * Organize the transmit power values into a table for writing into the hardware
232 */
233
234 static HAL_BOOL
ar2133SetPowerTable(struct ath_hal * ah,int16_t * pPowerMin,int16_t * pPowerMax,HAL_CHANNEL_INTERNAL * chan,uint16_t * rfXpdGain)235 ar2133SetPowerTable(struct ath_hal *ah, int16_t *pPowerMin, int16_t *pPowerMax,
236 HAL_CHANNEL_INTERNAL *chan, uint16_t *rfXpdGain)
237 {
238 return AH_TRUE;
239 }
240
241 #if 0
242 static int16_t
243 ar2133GetMinPower(struct ath_hal *ah, EXPN_DATA_PER_CHANNEL_5112 *data)
244 {
245 int i, minIndex;
246 int16_t minGain,minPwr,minPcdac,retVal;
247
248 /* Assume NUM_POINTS_XPD0 > 0 */
249 minGain = data->pDataPerXPD[0].xpd_gain;
250 for (minIndex=0,i=1; i<NUM_XPD_PER_CHANNEL; i++) {
251 if (data->pDataPerXPD[i].xpd_gain < minGain) {
252 minIndex = i;
253 minGain = data->pDataPerXPD[i].xpd_gain;
254 }
255 }
256 minPwr = data->pDataPerXPD[minIndex].pwr_t4[0];
257 minPcdac = data->pDataPerXPD[minIndex].pcdac[0];
258 for (i=1; i<NUM_POINTS_XPD0; i++) {
259 if (data->pDataPerXPD[minIndex].pwr_t4[i] < minPwr) {
260 minPwr = data->pDataPerXPD[minIndex].pwr_t4[i];
261 minPcdac = data->pDataPerXPD[minIndex].pcdac[i];
262 }
263 }
264 retVal = minPwr - (minPcdac*2);
265 return(retVal);
266 }
267 #endif
268
269 static HAL_BOOL
ar2133GetChannelMaxMinPower(struct ath_hal * ah,HAL_CHANNEL * chan,int16_t * maxPow,int16_t * minPow)270 ar2133GetChannelMaxMinPower(struct ath_hal *ah, HAL_CHANNEL *chan, int16_t *maxPow,
271 int16_t *minPow)
272 {
273 #if 0
274 struct ath_hal_5212 *ahp = AH5212(ah);
275 int numChannels=0,i,last;
276 int totalD, totalF,totalMin;
277 EXPN_DATA_PER_CHANNEL_5112 *data=AH_NULL;
278 EEPROM_POWER_EXPN_5112 *powerArray=AH_NULL;
279
280 *maxPow = 0;
281 if (IS_CHAN_A(chan)) {
282 powerArray = ahp->ah_modePowerArray5112;
283 data = powerArray[headerInfo11A].pDataPerChannel;
284 numChannels = powerArray[headerInfo11A].numChannels;
285 } else if (IS_CHAN_G(chan) || IS_CHAN_108G(chan)) {
286 /* XXX - is this correct? Should we also use the same power for turbo G? */
287 powerArray = ahp->ah_modePowerArray5112;
288 data = powerArray[headerInfo11G].pDataPerChannel;
289 numChannels = powerArray[headerInfo11G].numChannels;
290 } else if (IS_CHAN_B(chan)) {
291 powerArray = ahp->ah_modePowerArray5112;
292 data = powerArray[headerInfo11B].pDataPerChannel;
293 numChannels = powerArray[headerInfo11B].numChannels;
294 } else {
295 return (AH_TRUE);
296 }
297 /* Make sure the channel is in the range of the TP values
298 * (freq piers)
299 */
300 if ((numChannels < 1) ||
301 (chan->channel < data[0].channelValue) ||
302 (chan->channel > data[numChannels-1].channelValue))
303 return(AH_FALSE);
304
305 /* Linearly interpolate the power value now */
306 for (last=0,i=0;
307 (i<numChannels) && (chan->channel > data[i].channelValue);
308 last=i++);
309 totalD = data[i].channelValue - data[last].channelValue;
310 if (totalD > 0) {
311 totalF = data[i].maxPower_t4 - data[last].maxPower_t4;
312 *maxPow = (int8_t) ((totalF*(chan->channel-data[last].channelValue) + data[last].maxPower_t4*totalD)/totalD);
313
314 totalMin = ar2133GetMinPower(ah,&data[i]) - ar2133GetMinPower(ah, &data[last]);
315 *minPow = (int8_t) ((totalMin*(chan->channel-data[last].channelValue) + ar2133GetMinPower(ah, &data[last])*totalD)/totalD);
316 return (AH_TRUE);
317 } else {
318 if (chan->channel == data[i].channelValue) {
319 *maxPow = data[i].maxPower_t4;
320 *minPow = ar2133GetMinPower(ah, &data[i]);
321 return(AH_TRUE);
322 } else
323 return(AH_FALSE);
324 }
325 #else
326 *maxPow = *minPow = 0;
327 return AH_FALSE;
328 #endif
329 }
330
331 static void
ar2133GetNoiseFloor(struct ath_hal * ah,int16_t nfarray[])332 ar2133GetNoiseFloor(struct ath_hal *ah, int16_t nfarray[])
333 {
334 struct ath_hal_5416 *ahp = AH5416(ah);
335 int16_t nf;
336
337 switch (ahp->ah_rx_chainmask) {
338 case 0x7:
339 nf = MS(OS_REG_READ(ah, AR_PHY_CH2_CCA), AR_PHY_CH2_MINCCA_PWR);
340 if (nf & 0x100)
341 nf = 0 - ((nf ^ 0x1ff) + 1);
342 HALDEBUG(ah, HAL_DEBUG_NFCAL,
343 "NF calibrated [ctl] [chain 2] is %d\n", nf);
344 nfarray[4] = nf;
345
346 nf = MS(OS_REG_READ(ah, AR_PHY_CH2_EXT_CCA), AR_PHY_CH2_EXT_MINCCA_PWR);
347 if (nf & 0x100)
348 nf = 0 - ((nf ^ 0x1ff) + 1);
349 HALDEBUG(ah, HAL_DEBUG_NFCAL,
350 "NF calibrated [ext] [chain 2] is %d\n", nf);
351 nfarray[5] = nf;
352 /* fall thru... */
353 case 0x3:
354 case 0x5:
355 nf = MS(OS_REG_READ(ah, AR_PHY_CH1_CCA), AR_PHY_CH1_MINCCA_PWR);
356 if (nf & 0x100)
357 nf = 0 - ((nf ^ 0x1ff) + 1);
358 HALDEBUG(ah, HAL_DEBUG_NFCAL,
359 "NF calibrated [ctl] [chain 1] is %d\n", nf);
360 nfarray[2] = nf;
361
362
363 nf = MS(OS_REG_READ(ah, AR_PHY_CH1_EXT_CCA), AR_PHY_CH1_EXT_MINCCA_PWR);
364 if (nf & 0x100)
365 nf = 0 - ((nf ^ 0x1ff) + 1);
366 HALDEBUG(ah, HAL_DEBUG_NFCAL,
367 "NF calibrated [ext] [chain 1] is %d\n", nf);
368 nfarray[3] = nf;
369 /* fall thru... */
370 case 0x1:
371 nf = MS(OS_REG_READ(ah, AR_PHY_CCA), AR_PHY_MINCCA_PWR);
372 if (nf & 0x100)
373 nf = 0 - ((nf ^ 0x1ff) + 1);
374 HALDEBUG(ah, HAL_DEBUG_NFCAL,
375 "NF calibrated [ctl] [chain 0] is %d\n", nf);
376 nfarray[0] = nf;
377
378 nf = MS(OS_REG_READ(ah, AR_PHY_EXT_CCA), AR_PHY_EXT_MINCCA_PWR);
379 if (nf & 0x100)
380 nf = 0 - ((nf ^ 0x1ff) + 1);
381 HALDEBUG(ah, HAL_DEBUG_NFCAL,
382 "NF calibrated [ext] [chain 0] is %d\n", nf);
383 nfarray[1] = nf;
384
385 break;
386 }
387 }
388
389 /*
390 * Adjust NF based on statistical values for 5GHz frequencies.
391 * Stubbed:Not used by Fowl
392 */
393 int16_t
ar2133GetNfAdjust(struct ath_hal * ah,const HAL_CHANNEL_INTERNAL * c)394 ar2133GetNfAdjust(struct ath_hal *ah, const HAL_CHANNEL_INTERNAL *c)
395 {
396 return 0;
397 }
398
399 /*
400 * Free memory for analog bank scratch buffers
401 */
402 static void
ar2133RfDetach(struct ath_hal * ah)403 ar2133RfDetach(struct ath_hal *ah)
404 {
405 struct ath_hal_5212 *ahp = AH5212(ah);
406
407 HALASSERT(ahp->ah_rfHal != AH_NULL);
408 ath_hal_free(ahp->ah_rfHal);
409 ahp->ah_rfHal = AH_NULL;
410 }
411
412 /*
413 * Allocate memory for analog bank scratch buffers
414 * Scratch Buffer will be reinitialized every reset so no need to zero now
415 */
416 HAL_BOOL
ar2133RfAttach(struct ath_hal * ah,HAL_STATUS * status)417 ar2133RfAttach(struct ath_hal *ah, HAL_STATUS *status)
418 {
419 struct ath_hal_5212 *ahp = AH5212(ah);
420 struct ar2133State *priv;
421 uint32_t *bankData;
422
423 HALASSERT(ahp->ah_rfHal == AH_NULL);
424 priv = ath_hal_malloc(sizeof(struct ar2133State)
425 + AH5416(ah)->ah_ini_bank0.rows * sizeof(uint32_t)
426 + AH5416(ah)->ah_ini_bank1.rows * sizeof(uint32_t)
427 + AH5416(ah)->ah_ini_bank2.rows * sizeof(uint32_t)
428 + AH5416(ah)->ah_ini_bank3.rows * sizeof(uint32_t)
429 + AH5416(ah)->ah_ini_bank6.rows * sizeof(uint32_t)
430 + AH5416(ah)->ah_ini_bank7.rows * sizeof(uint32_t)
431 );
432 if (priv == AH_NULL) {
433 HALDEBUG(ah, HAL_DEBUG_ANY,
434 "%s: cannot allocate private state\n", __func__);
435 *status = HAL_ENOMEM; /* XXX */
436 return AH_FALSE;
437 }
438 priv->base.rfDetach = ar2133RfDetach;
439 priv->base.writeRegs = ar2133WriteRegs;
440 priv->base.getRfBank = ar2133GetRfBank;
441 priv->base.setChannel = ar2133SetChannel;
442 priv->base.setRfRegs = ar2133SetRfRegs;
443 priv->base.setPowerTable = ar2133SetPowerTable;
444 priv->base.getChannelMaxMinPower = ar2133GetChannelMaxMinPower;
445 priv->base.getNfAdjust = ar2133GetNfAdjust;
446
447 bankData = (uint32_t *) &priv[1];
448 priv->Bank0Data = bankData, bankData += AH5416(ah)->ah_ini_bank0.rows;
449 priv->Bank1Data = bankData, bankData += AH5416(ah)->ah_ini_bank1.rows;
450 priv->Bank2Data = bankData, bankData += AH5416(ah)->ah_ini_bank2.rows;
451 priv->Bank3Data = bankData, bankData += AH5416(ah)->ah_ini_bank3.rows;
452 priv->Bank6Data = bankData, bankData += AH5416(ah)->ah_ini_bank6.rows;
453 priv->Bank7Data = bankData, bankData += AH5416(ah)->ah_ini_bank7.rows;
454
455 ahp->ah_pcdacTable = priv->pcdacTable;
456 ahp->ah_pcdacTableSize = sizeof(priv->pcdacTable);
457 ahp->ah_rfHal = &priv->base;
458 /*
459 * Set noise floor adjust method; we arrange a
460 * direct call instead of thunking.
461 */
462 AH_PRIVATE(ah)->ah_getNfAdjust = priv->base.getNfAdjust;
463 AH_PRIVATE(ah)->ah_getNoiseFloor = ar2133GetNoiseFloor;
464
465 return AH_TRUE;
466 }
467