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-rw-r--r--drivers/net/wireless/b43/lo.c1261
1 files changed, 1261 insertions, 0 deletions
diff --git a/drivers/net/wireless/b43/lo.c b/drivers/net/wireless/b43/lo.c
new file mode 100644
index 000000000000..b14a1753a0d7
--- /dev/null
+++ b/drivers/net/wireless/b43/lo.c
@@ -0,0 +1,1261 @@
1/*
2
3 Broadcom B43 wireless driver
4
5 G PHY LO (LocalOscillator) Measuring and Control routines
6
7 Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
8 Copyright (c) 2005, 2006 Stefano Brivio <st3@riseup.net>
9 Copyright (c) 2005-2007 Michael Buesch <mb@bu3sch.de>
10 Copyright (c) 2005, 2006 Danny van Dyk <kugelfang@gentoo.org>
11 Copyright (c) 2005, 2006 Andreas Jaggi <andreas.jaggi@waterwave.ch>
12
13 This program is free software; you can redistribute it and/or modify
14 it under the terms of the GNU General Public License as published by
15 the Free Software Foundation; either version 2 of the License, or
16 (at your option) any later version.
17
18 This program is distributed in the hope that it will be useful,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 GNU General Public License for more details.
22
23 You should have received a copy of the GNU General Public License
24 along with this program; see the file COPYING. If not, write to
25 the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
26 Boston, MA 02110-1301, USA.
27
28*/
29
30#include "b43.h"
31#include "lo.h"
32#include "phy.h"
33#include "main.h"
34
35#include <linux/delay.h>
36#include <linux/sched.h>
37
38
39/* Define to 1 to always calibrate all possible LO control pairs.
40 * This is a workaround until we fix the partial LO calibration optimization. */
41#define B43_CALIB_ALL_LOCTLS 1
42
43
44/* Write the LocalOscillator Control (adjust) value-pair. */
45static void b43_lo_write(struct b43_wldev *dev, struct b43_loctl *control)
46{
47 struct b43_phy *phy = &dev->phy;
48 u16 value;
49 u16 reg;
50
51 if (B43_DEBUG) {
52 if (unlikely(abs(control->i) > 16 || abs(control->q) > 16)) {
53 b43dbg(dev->wl, "Invalid LO control pair "
54 "(I: %d, Q: %d)\n", control->i, control->q);
55 dump_stack();
56 return;
57 }
58 }
59
60 value = (u8) (control->q);
61 value |= ((u8) (control->i)) << 8;
62
63 reg = (phy->type == B43_PHYTYPE_B) ? 0x002F : B43_PHY_LO_CTL;
64 b43_phy_write(dev, reg, value);
65}
66
67static int assert_rfatt_and_bbatt(const struct b43_rfatt *rfatt,
68 const struct b43_bbatt *bbatt,
69 struct b43_wldev *dev)
70{
71 int err = 0;
72
73 /* Check the attenuation values against the LO control array sizes. */
74 if (unlikely(rfatt->att >= B43_NR_RF)) {
75 b43err(dev->wl, "rfatt(%u) >= size of LO array\n", rfatt->att);
76 err = -EINVAL;
77 }
78 if (unlikely(bbatt->att >= B43_NR_BB)) {
79 b43err(dev->wl, "bbatt(%u) >= size of LO array\n", bbatt->att);
80 err = -EINVAL;
81 }
82
83 return err;
84}
85
86#if !B43_CALIB_ALL_LOCTLS
87static
88struct b43_loctl *b43_get_lo_g_ctl_nopadmix(struct b43_wldev *dev,
89 const struct b43_rfatt *rfatt,
90 const struct b43_bbatt *bbatt)
91{
92 struct b43_phy *phy = &dev->phy;
93 struct b43_txpower_lo_control *lo = phy->lo_control;
94
95 if (assert_rfatt_and_bbatt(rfatt, bbatt, dev))
96 return &(lo->no_padmix[0][0]); /* Just prevent a crash */
97 return &(lo->no_padmix[bbatt->att][rfatt->att]);
98}
99#endif /* !B43_CALIB_ALL_LOCTLS */
100
101struct b43_loctl *b43_get_lo_g_ctl(struct b43_wldev *dev,
102 const struct b43_rfatt *rfatt,
103 const struct b43_bbatt *bbatt)
104{
105 struct b43_phy *phy = &dev->phy;
106 struct b43_txpower_lo_control *lo = phy->lo_control;
107
108 if (assert_rfatt_and_bbatt(rfatt, bbatt, dev))
109 return &(lo->no_padmix[0][0]); /* Just prevent a crash */
110 if (rfatt->with_padmix)
111 return &(lo->with_padmix[bbatt->att][rfatt->att]);
112 return &(lo->no_padmix[bbatt->att][rfatt->att]);
113}
114
115/* Call a function for every possible LO control value-pair. */
116static void b43_call_for_each_loctl(struct b43_wldev *dev,
117 void (*func) (struct b43_wldev *,
118 struct b43_loctl *))
119{
120 struct b43_phy *phy = &dev->phy;
121 struct b43_txpower_lo_control *ctl = phy->lo_control;
122 int i, j;
123
124 for (i = 0; i < B43_NR_BB; i++) {
125 for (j = 0; j < B43_NR_RF; j++)
126 func(dev, &(ctl->with_padmix[i][j]));
127 }
128 for (i = 0; i < B43_NR_BB; i++) {
129 for (j = 0; j < B43_NR_RF; j++)
130 func(dev, &(ctl->no_padmix[i][j]));
131 }
132}
133
134static u16 lo_b_r15_loop(struct b43_wldev *dev)
135{
136 int i;
137 u16 ret = 0;
138
139 for (i = 0; i < 10; i++) {
140 b43_phy_write(dev, 0x0015, 0xAFA0);
141 udelay(1);
142 b43_phy_write(dev, 0x0015, 0xEFA0);
143 udelay(10);
144 b43_phy_write(dev, 0x0015, 0xFFA0);
145 udelay(40);
146 ret += b43_phy_read(dev, 0x002C);
147 }
148
149 return ret;
150}
151
152void b43_lo_b_measure(struct b43_wldev *dev)
153{
154 struct b43_phy *phy = &dev->phy;
155 u16 regstack[12] = { 0 };
156 u16 mls;
157 u16 fval;
158 int i, j;
159
160 regstack[0] = b43_phy_read(dev, 0x0015);
161 regstack[1] = b43_radio_read16(dev, 0x0052) & 0xFFF0;
162
163 if (phy->radio_ver == 0x2053) {
164 regstack[2] = b43_phy_read(dev, 0x000A);
165 regstack[3] = b43_phy_read(dev, 0x002A);
166 regstack[4] = b43_phy_read(dev, 0x0035);
167 regstack[5] = b43_phy_read(dev, 0x0003);
168 regstack[6] = b43_phy_read(dev, 0x0001);
169 regstack[7] = b43_phy_read(dev, 0x0030);
170
171 regstack[8] = b43_radio_read16(dev, 0x0043);
172 regstack[9] = b43_radio_read16(dev, 0x007A);
173 regstack[10] = b43_read16(dev, 0x03EC);
174 regstack[11] = b43_radio_read16(dev, 0x0052) & 0x00F0;
175
176 b43_phy_write(dev, 0x0030, 0x00FF);
177 b43_write16(dev, 0x03EC, 0x3F3F);
178 b43_phy_write(dev, 0x0035, regstack[4] & 0xFF7F);
179 b43_radio_write16(dev, 0x007A, regstack[9] & 0xFFF0);
180 }
181 b43_phy_write(dev, 0x0015, 0xB000);
182 b43_phy_write(dev, 0x002B, 0x0004);
183
184 if (phy->radio_ver == 0x2053) {
185 b43_phy_write(dev, 0x002B, 0x0203);
186 b43_phy_write(dev, 0x002A, 0x08A3);
187 }
188
189 phy->minlowsig[0] = 0xFFFF;
190
191 for (i = 0; i < 4; i++) {
192 b43_radio_write16(dev, 0x0052, regstack[1] | i);
193 lo_b_r15_loop(dev);
194 }
195 for (i = 0; i < 10; i++) {
196 b43_radio_write16(dev, 0x0052, regstack[1] | i);
197 mls = lo_b_r15_loop(dev) / 10;
198 if (mls < phy->minlowsig[0]) {
199 phy->minlowsig[0] = mls;
200 phy->minlowsigpos[0] = i;
201 }
202 }
203 b43_radio_write16(dev, 0x0052, regstack[1] | phy->minlowsigpos[0]);
204
205 phy->minlowsig[1] = 0xFFFF;
206
207 for (i = -4; i < 5; i += 2) {
208 for (j = -4; j < 5; j += 2) {
209 if (j < 0)
210 fval = (0x0100 * i) + j + 0x0100;
211 else
212 fval = (0x0100 * i) + j;
213 b43_phy_write(dev, 0x002F, fval);
214 mls = lo_b_r15_loop(dev) / 10;
215 if (mls < phy->minlowsig[1]) {
216 phy->minlowsig[1] = mls;
217 phy->minlowsigpos[1] = fval;
218 }
219 }
220 }
221 phy->minlowsigpos[1] += 0x0101;
222
223 b43_phy_write(dev, 0x002F, phy->minlowsigpos[1]);
224 if (phy->radio_ver == 0x2053) {
225 b43_phy_write(dev, 0x000A, regstack[2]);
226 b43_phy_write(dev, 0x002A, regstack[3]);
227 b43_phy_write(dev, 0x0035, regstack[4]);
228 b43_phy_write(dev, 0x0003, regstack[5]);
229 b43_phy_write(dev, 0x0001, regstack[6]);
230 b43_phy_write(dev, 0x0030, regstack[7]);
231
232 b43_radio_write16(dev, 0x0043, regstack[8]);
233 b43_radio_write16(dev, 0x007A, regstack[9]);
234
235 b43_radio_write16(dev, 0x0052,
236 (b43_radio_read16(dev, 0x0052) & 0x000F)
237 | regstack[11]);
238
239 b43_write16(dev, 0x03EC, regstack[10]);
240 }
241 b43_phy_write(dev, 0x0015, regstack[0]);
242}
243
244static u16 lo_measure_feedthrough(struct b43_wldev *dev,
245 u16 lna, u16 pga, u16 trsw_rx)
246{
247 struct b43_phy *phy = &dev->phy;
248 u16 rfover;
249 u16 feedthrough;
250
251 if (phy->gmode) {
252 lna <<= B43_PHY_RFOVERVAL_LNA_SHIFT;
253 pga <<= B43_PHY_RFOVERVAL_PGA_SHIFT;
254
255 B43_WARN_ON(lna & ~B43_PHY_RFOVERVAL_LNA);
256 B43_WARN_ON(pga & ~B43_PHY_RFOVERVAL_PGA);
257/*FIXME This assertion fails B43_WARN_ON(trsw_rx & ~(B43_PHY_RFOVERVAL_TRSWRX |
258 B43_PHY_RFOVERVAL_BW));
259*/
260 trsw_rx &= (B43_PHY_RFOVERVAL_TRSWRX | B43_PHY_RFOVERVAL_BW);
261
262 /* Construct the RF Override Value */
263 rfover = B43_PHY_RFOVERVAL_UNK;
264 rfover |= pga;
265 rfover |= lna;
266 rfover |= trsw_rx;
267 if ((dev->dev->bus->sprom.r1.boardflags_lo & B43_BFL_EXTLNA) &&
268 phy->rev > 6)
269 rfover |= B43_PHY_RFOVERVAL_EXTLNA;
270
271 b43_phy_write(dev, B43_PHY_PGACTL, 0xE300);
272 b43_phy_write(dev, B43_PHY_RFOVERVAL, rfover);
273 udelay(10);
274 rfover |= B43_PHY_RFOVERVAL_BW_LBW;
275 b43_phy_write(dev, B43_PHY_RFOVERVAL, rfover);
276 udelay(10);
277 rfover |= B43_PHY_RFOVERVAL_BW_LPF;
278 b43_phy_write(dev, B43_PHY_RFOVERVAL, rfover);
279 udelay(10);
280 b43_phy_write(dev, B43_PHY_PGACTL, 0xF300);
281 } else {
282 pga |= B43_PHY_PGACTL_UNKNOWN;
283 b43_phy_write(dev, B43_PHY_PGACTL, pga);
284 udelay(10);
285 pga |= B43_PHY_PGACTL_LOWBANDW;
286 b43_phy_write(dev, B43_PHY_PGACTL, pga);
287 udelay(10);
288 pga |= B43_PHY_PGACTL_LPF;
289 b43_phy_write(dev, B43_PHY_PGACTL, pga);
290 }
291 udelay(21);
292 feedthrough = b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
293
294 /* This is a good place to check if we need to relax a bit,
295 * as this is the main function called regularly
296 * in the LO calibration. */
297 cond_resched();
298
299 return feedthrough;
300}
301
302/* TXCTL Register and Value Table.
303 * Returns the "TXCTL Register".
304 * "value" is the "TXCTL Value".
305 * "pad_mix_gain" is the PAD Mixer Gain.
306 */
307static u16 lo_txctl_register_table(struct b43_wldev *dev,
308 u16 * value, u16 * pad_mix_gain)
309{
310 struct b43_phy *phy = &dev->phy;
311 u16 reg, v, padmix;
312
313 if (phy->type == B43_PHYTYPE_B) {
314 v = 0x30;
315 if (phy->radio_rev <= 5) {
316 reg = 0x43;
317 padmix = 0;
318 } else {
319 reg = 0x52;
320 padmix = 5;
321 }
322 } else {
323 if (phy->rev >= 2 && phy->radio_rev == 8) {
324 reg = 0x43;
325 v = 0x10;
326 padmix = 2;
327 } else {
328 reg = 0x52;
329 v = 0x30;
330 padmix = 5;
331 }
332 }
333 if (value)
334 *value = v;
335 if (pad_mix_gain)
336 *pad_mix_gain = padmix;
337
338 return reg;
339}
340
341static void lo_measure_txctl_values(struct b43_wldev *dev)
342{
343 struct b43_phy *phy = &dev->phy;
344 struct b43_txpower_lo_control *lo = phy->lo_control;
345 u16 reg, mask;
346 u16 trsw_rx, pga;
347 u16 radio_pctl_reg;
348
349 static const u8 tx_bias_values[] = {
350 0x09, 0x08, 0x0A, 0x01, 0x00,
351 0x02, 0x05, 0x04, 0x06,
352 };
353 static const u8 tx_magn_values[] = {
354 0x70, 0x40,
355 };
356
357 if (!has_loopback_gain(phy)) {
358 radio_pctl_reg = 6;
359 trsw_rx = 2;
360 pga = 0;
361 } else {
362 int lb_gain; /* Loopback gain (in dB) */
363
364 trsw_rx = 0;
365 lb_gain = phy->max_lb_gain / 2;
366 if (lb_gain > 10) {
367 radio_pctl_reg = 0;
368 pga = abs(10 - lb_gain) / 6;
369 pga = limit_value(pga, 0, 15);
370 } else {
371 int cmp_val;
372 int tmp;
373
374 pga = 0;
375 cmp_val = 0x24;
376 if ((phy->rev >= 2) &&
377 (phy->radio_ver == 0x2050) && (phy->radio_rev == 8))
378 cmp_val = 0x3C;
379 tmp = lb_gain;
380 if ((10 - lb_gain) < cmp_val)
381 tmp = (10 - lb_gain);
382 if (tmp < 0)
383 tmp += 6;
384 else
385 tmp += 3;
386 cmp_val /= 4;
387 tmp /= 4;
388 if (tmp >= cmp_val)
389 radio_pctl_reg = cmp_val;
390 else
391 radio_pctl_reg = tmp;
392 }
393 }
394 b43_radio_write16(dev, 0x43, (b43_radio_read16(dev, 0x43)
395 & 0xFFF0) | radio_pctl_reg);
396 b43_phy_set_baseband_attenuation(dev, 2);
397
398 reg = lo_txctl_register_table(dev, &mask, NULL);
399 mask = ~mask;
400 b43_radio_write16(dev, reg, b43_radio_read16(dev, reg)
401 & mask);
402
403 if (has_tx_magnification(phy)) {
404 int i, j;
405 int feedthrough;
406 int min_feedth = 0xFFFF;
407 u8 tx_magn, tx_bias;
408
409 for (i = 0; i < ARRAY_SIZE(tx_magn_values); i++) {
410 tx_magn = tx_magn_values[i];
411 b43_radio_write16(dev, 0x52,
412 (b43_radio_read16(dev, 0x52)
413 & 0xFF0F) | tx_magn);
414 for (j = 0; j < ARRAY_SIZE(tx_bias_values); j++) {
415 tx_bias = tx_bias_values[j];
416 b43_radio_write16(dev, 0x52,
417 (b43_radio_read16(dev, 0x52)
418 & 0xFFF0) | tx_bias);
419 feedthrough =
420 lo_measure_feedthrough(dev, 0, pga,
421 trsw_rx);
422 if (feedthrough < min_feedth) {
423 lo->tx_bias = tx_bias;
424 lo->tx_magn = tx_magn;
425 min_feedth = feedthrough;
426 }
427 if (lo->tx_bias == 0)
428 break;
429 }
430 b43_radio_write16(dev, 0x52,
431 (b43_radio_read16(dev, 0x52)
432 & 0xFF00) | lo->tx_bias | lo->
433 tx_magn);
434 }
435 } else {
436 lo->tx_magn = 0;
437 lo->tx_bias = 0;
438 b43_radio_write16(dev, 0x52, b43_radio_read16(dev, 0x52)
439 & 0xFFF0); /* TX bias == 0 */
440 }
441}
442
443static void lo_read_power_vector(struct b43_wldev *dev)
444{
445 struct b43_phy *phy = &dev->phy;
446 struct b43_txpower_lo_control *lo = phy->lo_control;
447 u16 i;
448 u64 tmp;
449 u64 power_vector = 0;
450 int rf_offset, bb_offset;
451 struct b43_loctl *loctl;
452
453 for (i = 0; i < 8; i += 2) {
454 tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x310 + i);
455 /* Clear the top byte. We get holes in the bitmap... */
456 tmp &= 0xFF;
457 power_vector |= (tmp << (i * 8));
458 /* Clear the vector on the device. */
459 b43_shm_write16(dev, B43_SHM_SHARED, 0x310 + i, 0);
460 }
461
462 if (power_vector)
463 lo->power_vector = power_vector;
464 power_vector = lo->power_vector;
465
466 for (i = 0; i < 64; i++) {
467 if (power_vector & ((u64) 1ULL << i)) {
468 /* Now figure out which b43_loctl corresponds
469 * to this bit.
470 */
471 rf_offset = i / lo->rfatt_list.len;
472 bb_offset = i % lo->rfatt_list.len; //FIXME?
473 loctl =
474 b43_get_lo_g_ctl(dev,
475 &lo->rfatt_list.list[rf_offset],
476 &lo->bbatt_list.list[bb_offset]);
477 /* And mark it as "used", as the device told us
478 * through the bitmap it is using it.
479 */
480 loctl->used = 1;
481 }
482 }
483}
484
485/* 802.11/LO/GPHY/MeasuringGains */
486static void lo_measure_gain_values(struct b43_wldev *dev,
487 s16 max_rx_gain, int use_trsw_rx)
488{
489 struct b43_phy *phy = &dev->phy;
490 u16 tmp;
491
492 if (max_rx_gain < 0)
493 max_rx_gain = 0;
494
495 if (has_loopback_gain(phy)) {
496 int trsw_rx = 0;
497 int trsw_rx_gain;
498
499 if (use_trsw_rx) {
500 trsw_rx_gain = phy->trsw_rx_gain / 2;
501 if (max_rx_gain >= trsw_rx_gain) {
502 trsw_rx_gain = max_rx_gain - trsw_rx_gain;
503 trsw_rx = 0x20;
504 }
505 } else
506 trsw_rx_gain = max_rx_gain;
507 if (trsw_rx_gain < 9) {
508 phy->lna_lod_gain = 0;
509 } else {
510 phy->lna_lod_gain = 1;
511 trsw_rx_gain -= 8;
512 }
513 trsw_rx_gain = limit_value(trsw_rx_gain, 0, 0x2D);
514 phy->pga_gain = trsw_rx_gain / 3;
515 if (phy->pga_gain >= 5) {
516 phy->pga_gain -= 5;
517 phy->lna_gain = 2;
518 } else
519 phy->lna_gain = 0;
520 } else {
521 phy->lna_gain = 0;
522 phy->trsw_rx_gain = 0x20;
523 if (max_rx_gain >= 0x14) {
524 phy->lna_lod_gain = 1;
525 phy->pga_gain = 2;
526 } else if (max_rx_gain >= 0x12) {
527 phy->lna_lod_gain = 1;
528 phy->pga_gain = 1;
529 } else if (max_rx_gain >= 0xF) {
530 phy->lna_lod_gain = 1;
531 phy->pga_gain = 0;
532 } else {
533 phy->lna_lod_gain = 0;
534 phy->pga_gain = 0;
535 }
536 }
537
538 tmp = b43_radio_read16(dev, 0x7A);
539 if (phy->lna_lod_gain == 0)
540 tmp &= ~0x0008;
541 else
542 tmp |= 0x0008;
543 b43_radio_write16(dev, 0x7A, tmp);
544}
545
546struct lo_g_saved_values {
547 u8 old_channel;
548
549 /* Core registers */
550 u16 reg_3F4;
551 u16 reg_3E2;
552
553 /* PHY registers */
554 u16 phy_lo_mask;
555 u16 phy_extg_01;
556 u16 phy_dacctl_hwpctl;
557 u16 phy_dacctl;
558 u16 phy_base_14;
559 u16 phy_hpwr_tssictl;
560 u16 phy_analogover;
561 u16 phy_analogoverval;
562 u16 phy_rfover;
563 u16 phy_rfoverval;
564 u16 phy_classctl;
565 u16 phy_base_3E;
566 u16 phy_crs0;
567 u16 phy_pgactl;
568 u16 phy_base_2A;
569 u16 phy_syncctl;
570 u16 phy_base_30;
571 u16 phy_base_06;
572
573 /* Radio registers */
574 u16 radio_43;
575 u16 radio_7A;
576 u16 radio_52;
577};
578
579static void lo_measure_setup(struct b43_wldev *dev,
580 struct lo_g_saved_values *sav)
581{
582 struct ssb_sprom *sprom = &dev->dev->bus->sprom;
583 struct b43_phy *phy = &dev->phy;
584 struct b43_txpower_lo_control *lo = phy->lo_control;
585 u16 tmp;
586
587 if (b43_has_hardware_pctl(phy)) {
588 sav->phy_lo_mask = b43_phy_read(dev, B43_PHY_LO_MASK);
589 sav->phy_extg_01 = b43_phy_read(dev, B43_PHY_EXTG(0x01));
590 sav->phy_dacctl_hwpctl = b43_phy_read(dev, B43_PHY_DACCTL);
591 sav->phy_base_14 = b43_phy_read(dev, B43_PHY_BASE(0x14));
592 sav->phy_hpwr_tssictl = b43_phy_read(dev, B43_PHY_HPWR_TSSICTL);
593
594 b43_phy_write(dev, B43_PHY_HPWR_TSSICTL,
595 b43_phy_read(dev, B43_PHY_HPWR_TSSICTL)
596 | 0x100);
597 b43_phy_write(dev, B43_PHY_EXTG(0x01),
598 b43_phy_read(dev, B43_PHY_EXTG(0x01))
599 | 0x40);
600 b43_phy_write(dev, B43_PHY_DACCTL,
601 b43_phy_read(dev, B43_PHY_DACCTL)
602 | 0x40);
603 b43_phy_write(dev, B43_PHY_BASE(0x14),
604 b43_phy_read(dev, B43_PHY_BASE(0x14))
605 | 0x200);
606 }
607 if (phy->type == B43_PHYTYPE_B &&
608 phy->radio_ver == 0x2050 && phy->radio_rev < 6) {
609 b43_phy_write(dev, B43_PHY_BASE(0x16), 0x410);
610 b43_phy_write(dev, B43_PHY_BASE(0x17), 0x820);
611 }
612 if (!lo->rebuild && b43_has_hardware_pctl(phy))
613 lo_read_power_vector(dev);
614 if (phy->rev >= 2) {
615 sav->phy_analogover = b43_phy_read(dev, B43_PHY_ANALOGOVER);
616 sav->phy_analogoverval =
617 b43_phy_read(dev, B43_PHY_ANALOGOVERVAL);
618 sav->phy_rfover = b43_phy_read(dev, B43_PHY_RFOVER);
619 sav->phy_rfoverval = b43_phy_read(dev, B43_PHY_RFOVERVAL);
620 sav->phy_classctl = b43_phy_read(dev, B43_PHY_CLASSCTL);
621 sav->phy_base_3E = b43_phy_read(dev, B43_PHY_BASE(0x3E));
622 sav->phy_crs0 = b43_phy_read(dev, B43_PHY_CRS0);
623
624 b43_phy_write(dev, B43_PHY_CLASSCTL,
625 b43_phy_read(dev, B43_PHY_CLASSCTL)
626 & 0xFFFC);
627 b43_phy_write(dev, B43_PHY_CRS0, b43_phy_read(dev, B43_PHY_CRS0)
628 & 0x7FFF);
629 b43_phy_write(dev, B43_PHY_ANALOGOVER,
630 b43_phy_read(dev, B43_PHY_ANALOGOVER)
631 | 0x0003);
632 b43_phy_write(dev, B43_PHY_ANALOGOVERVAL,
633 b43_phy_read(dev, B43_PHY_ANALOGOVERVAL)
634 & 0xFFFC);
635 if (phy->type == B43_PHYTYPE_G) {
636 if ((phy->rev >= 7) &&
637 (sprom->r1.boardflags_lo & B43_BFL_EXTLNA)) {
638 b43_phy_write(dev, B43_PHY_RFOVER, 0x933);
639 } else {
640 b43_phy_write(dev, B43_PHY_RFOVER, 0x133);
641 }
642 } else {
643 b43_phy_write(dev, B43_PHY_RFOVER, 0);
644 }
645 b43_phy_write(dev, B43_PHY_BASE(0x3E), 0);
646 }
647 sav->reg_3F4 = b43_read16(dev, 0x3F4);
648 sav->reg_3E2 = b43_read16(dev, 0x3E2);
649 sav->radio_43 = b43_radio_read16(dev, 0x43);
650 sav->radio_7A = b43_radio_read16(dev, 0x7A);
651 sav->phy_pgactl = b43_phy_read(dev, B43_PHY_PGACTL);
652 sav->phy_base_2A = b43_phy_read(dev, B43_PHY_BASE(0x2A));
653 sav->phy_syncctl = b43_phy_read(dev, B43_PHY_SYNCCTL);
654 sav->phy_dacctl = b43_phy_read(dev, B43_PHY_DACCTL);
655
656 if (!has_tx_magnification(phy)) {
657 sav->radio_52 = b43_radio_read16(dev, 0x52);
658 sav->radio_52 &= 0x00F0;
659 }
660 if (phy->type == B43_PHYTYPE_B) {
661 sav->phy_base_30 = b43_phy_read(dev, B43_PHY_BASE(0x30));
662 sav->phy_base_06 = b43_phy_read(dev, B43_PHY_BASE(0x06));
663 b43_phy_write(dev, B43_PHY_BASE(0x30), 0x00FF);
664 b43_phy_write(dev, B43_PHY_BASE(0x06), 0x3F3F);
665 } else {
666 b43_write16(dev, 0x3E2, b43_read16(dev, 0x3E2)
667 | 0x8000);
668 }
669 b43_write16(dev, 0x3F4, b43_read16(dev, 0x3F4)
670 & 0xF000);
671
672 tmp =
673 (phy->type == B43_PHYTYPE_G) ? B43_PHY_LO_MASK : B43_PHY_BASE(0x2E);
674 b43_phy_write(dev, tmp, 0x007F);
675
676 tmp = sav->phy_syncctl;
677 b43_phy_write(dev, B43_PHY_SYNCCTL, tmp & 0xFF7F);
678 tmp = sav->radio_7A;
679 b43_radio_write16(dev, 0x007A, tmp & 0xFFF0);
680
681 b43_phy_write(dev, B43_PHY_BASE(0x2A), 0x8A3);
682 if (phy->type == B43_PHYTYPE_G ||
683 (phy->type == B43_PHYTYPE_B &&
684 phy->radio_ver == 0x2050 && phy->radio_rev >= 6)) {
685 b43_phy_write(dev, B43_PHY_BASE(0x2B), 0x1003);
686 } else
687 b43_phy_write(dev, B43_PHY_BASE(0x2B), 0x0802);
688 if (phy->rev >= 2)
689 b43_dummy_transmission(dev);
690 b43_radio_selectchannel(dev, 6, 0);
691 b43_radio_read16(dev, 0x51); /* dummy read */
692 if (phy->type == B43_PHYTYPE_G)
693 b43_phy_write(dev, B43_PHY_BASE(0x2F), 0);
694 if (lo->rebuild)
695 lo_measure_txctl_values(dev);
696 if (phy->type == B43_PHYTYPE_G && phy->rev >= 3) {
697 b43_phy_write(dev, B43_PHY_LO_MASK, 0xC078);
698 } else {
699 if (phy->type == B43_PHYTYPE_B)
700 b43_phy_write(dev, B43_PHY_BASE(0x2E), 0x8078);
701 else
702 b43_phy_write(dev, B43_PHY_LO_MASK, 0x8078);
703 }
704}
705
706static void lo_measure_restore(struct b43_wldev *dev,
707 struct lo_g_saved_values *sav)
708{
709 struct b43_phy *phy = &dev->phy;
710 struct b43_txpower_lo_control *lo = phy->lo_control;
711 u16 tmp;
712
713 if (phy->rev >= 2) {
714 b43_phy_write(dev, B43_PHY_PGACTL, 0xE300);
715 tmp = (phy->pga_gain << 8);
716 b43_phy_write(dev, B43_PHY_RFOVERVAL, tmp | 0xA0);
717 udelay(5);
718 b43_phy_write(dev, B43_PHY_RFOVERVAL, tmp | 0xA2);
719 udelay(2);
720 b43_phy_write(dev, B43_PHY_RFOVERVAL, tmp | 0xA3);
721 } else {
722 tmp = (phy->pga_gain | 0xEFA0);
723 b43_phy_write(dev, B43_PHY_PGACTL, tmp);
724 }
725 if (b43_has_hardware_pctl(phy)) {
726 b43_gphy_dc_lt_init(dev);
727 } else {
728 if (lo->rebuild)
729 b43_lo_g_adjust_to(dev, 3, 2, 0);
730 else
731 b43_lo_g_adjust(dev);
732 }
733 if (phy->type == B43_PHYTYPE_G) {
734 if (phy->rev >= 3)
735 b43_phy_write(dev, B43_PHY_BASE(0x2E), 0xC078);
736 else
737 b43_phy_write(dev, B43_PHY_BASE(0x2E), 0x8078);
738 if (phy->rev >= 2)
739 b43_phy_write(dev, B43_PHY_BASE(0x2F), 0x0202);
740 else
741 b43_phy_write(dev, B43_PHY_BASE(0x2F), 0x0101);
742 }
743 b43_write16(dev, 0x3F4, sav->reg_3F4);
744 b43_phy_write(dev, B43_PHY_PGACTL, sav->phy_pgactl);
745 b43_phy_write(dev, B43_PHY_BASE(0x2A), sav->phy_base_2A);
746 b43_phy_write(dev, B43_PHY_SYNCCTL, sav->phy_syncctl);
747 b43_phy_write(dev, B43_PHY_DACCTL, sav->phy_dacctl);
748 b43_radio_write16(dev, 0x43, sav->radio_43);
749 b43_radio_write16(dev, 0x7A, sav->radio_7A);
750 if (!has_tx_magnification(phy)) {
751 tmp = sav->radio_52;
752 b43_radio_write16(dev, 0x52, (b43_radio_read16(dev, 0x52)
753 & 0xFF0F) | tmp);
754 }
755 b43_write16(dev, 0x3E2, sav->reg_3E2);
756 if (phy->type == B43_PHYTYPE_B &&
757 phy->radio_ver == 0x2050 && phy->radio_rev <= 5) {
758 b43_phy_write(dev, B43_PHY_BASE(0x30), sav->phy_base_30);
759 b43_phy_write(dev, B43_PHY_BASE(0x06), sav->phy_base_06);
760 }
761 if (phy->rev >= 2) {
762 b43_phy_write(dev, B43_PHY_ANALOGOVER, sav->phy_analogover);
763 b43_phy_write(dev, B43_PHY_ANALOGOVERVAL,
764 sav->phy_analogoverval);
765 b43_phy_write(dev, B43_PHY_CLASSCTL, sav->phy_classctl);
766 b43_phy_write(dev, B43_PHY_RFOVER, sav->phy_rfover);
767 b43_phy_write(dev, B43_PHY_RFOVERVAL, sav->phy_rfoverval);
768 b43_phy_write(dev, B43_PHY_BASE(0x3E), sav->phy_base_3E);
769 b43_phy_write(dev, B43_PHY_CRS0, sav->phy_crs0);
770 }
771 if (b43_has_hardware_pctl(phy)) {
772 tmp = (sav->phy_lo_mask & 0xBFFF);
773 b43_phy_write(dev, B43_PHY_LO_MASK, tmp);
774 b43_phy_write(dev, B43_PHY_EXTG(0x01), sav->phy_extg_01);
775 b43_phy_write(dev, B43_PHY_DACCTL, sav->phy_dacctl_hwpctl);
776 b43_phy_write(dev, B43_PHY_BASE(0x14), sav->phy_base_14);
777 b43_phy_write(dev, B43_PHY_HPWR_TSSICTL, sav->phy_hpwr_tssictl);
778 }
779 b43_radio_selectchannel(dev, sav->old_channel, 1);
780}
781
782struct b43_lo_g_statemachine {
783 int current_state;
784 int nr_measured;
785 int state_val_multiplier;
786 u16 lowest_feedth;
787 struct b43_loctl min_loctl;
788};
789
790/* Loop over each possible value in this state. */
791static int lo_probe_possible_loctls(struct b43_wldev *dev,
792 struct b43_loctl *probe_loctl,
793 struct b43_lo_g_statemachine *d)
794{
795 struct b43_phy *phy = &dev->phy;
796 struct b43_txpower_lo_control *lo = phy->lo_control;
797 struct b43_loctl test_loctl;
798 struct b43_loctl orig_loctl;
799 struct b43_loctl prev_loctl = {
800 .i = -100,
801 .q = -100,
802 };
803 int i;
804 int begin, end;
805 int found_lower = 0;
806 u16 feedth;
807
808 static const struct b43_loctl modifiers[] = {
809 {.i = 1,.q = 1,},
810 {.i = 1,.q = 0,},
811 {.i = 1,.q = -1,},
812 {.i = 0,.q = -1,},
813 {.i = -1,.q = -1,},
814 {.i = -1,.q = 0,},
815 {.i = -1,.q = 1,},
816 {.i = 0,.q = 1,},
817 };
818
819 if (d->current_state == 0) {
820 begin = 1;
821 end = 8;
822 } else if (d->current_state % 2 == 0) {
823 begin = d->current_state - 1;
824 end = d->current_state + 1;
825 } else {
826 begin = d->current_state - 2;
827 end = d->current_state + 2;
828 }
829 if (begin < 1)
830 begin += 8;
831 if (end > 8)
832 end -= 8;
833
834 memcpy(&orig_loctl, probe_loctl, sizeof(struct b43_loctl));
835 i = begin;
836 d->current_state = i;
837 while (1) {
838 B43_WARN_ON(!(i >= 1 && i <= 8));
839 memcpy(&test_loctl, &orig_loctl, sizeof(struct b43_loctl));
840 test_loctl.i += modifiers[i - 1].i * d->state_val_multiplier;
841 test_loctl.q += modifiers[i - 1].q * d->state_val_multiplier;
842 if ((test_loctl.i != prev_loctl.i ||
843 test_loctl.q != prev_loctl.q) &&
844 (abs(test_loctl.i) <= 16 && abs(test_loctl.q) <= 16)) {
845 b43_lo_write(dev, &test_loctl);
846 feedth = lo_measure_feedthrough(dev, phy->lna_gain,
847 phy->pga_gain,
848 phy->trsw_rx_gain);
849 if (feedth < d->lowest_feedth) {
850 memcpy(probe_loctl, &test_loctl,
851 sizeof(struct b43_loctl));
852 found_lower = 1;
853 d->lowest_feedth = feedth;
854 if ((d->nr_measured < 2) &&
855 (!has_loopback_gain(phy) || lo->rebuild))
856 break;
857 }
858 }
859 memcpy(&prev_loctl, &test_loctl, sizeof(prev_loctl));
860 if (i == end)
861 break;
862 if (i == 8)
863 i = 1;
864 else
865 i++;
866 d->current_state = i;
867 }
868
869 return found_lower;
870}
871
872static void lo_probe_loctls_statemachine(struct b43_wldev *dev,
873 struct b43_loctl *loctl,
874 int *max_rx_gain)
875{
876 struct b43_phy *phy = &dev->phy;
877 struct b43_txpower_lo_control *lo = phy->lo_control;
878 struct b43_lo_g_statemachine d;
879 u16 feedth;
880 int found_lower;
881 struct b43_loctl probe_loctl;
882 int max_repeat = 1, repeat_cnt = 0;
883
884 d.nr_measured = 0;
885 d.state_val_multiplier = 1;
886 if (has_loopback_gain(phy) && !lo->rebuild)
887 d.state_val_multiplier = 3;
888
889 memcpy(&d.min_loctl, loctl, sizeof(struct b43_loctl));
890 if (has_loopback_gain(phy) && lo->rebuild)
891 max_repeat = 4;
892 do {
893 b43_lo_write(dev, &d.min_loctl);
894 feedth = lo_measure_feedthrough(dev, phy->lna_gain,
895 phy->pga_gain,
896 phy->trsw_rx_gain);
897 if (!lo->rebuild && feedth < 0x258) {
898 if (feedth >= 0x12C)
899 *max_rx_gain += 6;
900 else
901 *max_rx_gain += 3;
902 feedth = lo_measure_feedthrough(dev, phy->lna_gain,
903 phy->pga_gain,
904 phy->trsw_rx_gain);
905 }
906 d.lowest_feedth = feedth;
907
908 d.current_state = 0;
909 do {
910 B43_WARN_ON(!
911 (d.current_state >= 0
912 && d.current_state <= 8));
913 memcpy(&probe_loctl, &d.min_loctl,
914 sizeof(struct b43_loctl));
915 found_lower =
916 lo_probe_possible_loctls(dev, &probe_loctl, &d);
917 if (!found_lower)
918 break;
919 if ((probe_loctl.i == d.min_loctl.i) &&
920 (probe_loctl.q == d.min_loctl.q))
921 break;
922 memcpy(&d.min_loctl, &probe_loctl,
923 sizeof(struct b43_loctl));
924 d.nr_measured++;
925 } while (d.nr_measured < 24);
926 memcpy(loctl, &d.min_loctl, sizeof(struct b43_loctl));
927
928 if (has_loopback_gain(phy)) {
929 if (d.lowest_feedth > 0x1194)
930 *max_rx_gain -= 6;
931 else if (d.lowest_feedth < 0x5DC)
932 *max_rx_gain += 3;
933 if (repeat_cnt == 0) {
934 if (d.lowest_feedth <= 0x5DC) {
935 d.state_val_multiplier = 1;
936 repeat_cnt++;
937 } else
938 d.state_val_multiplier = 2;
939 } else if (repeat_cnt == 2)
940 d.state_val_multiplier = 1;
941 }
942 lo_measure_gain_values(dev, *max_rx_gain,
943 has_loopback_gain(phy));
944 } while (++repeat_cnt < max_repeat);
945}
946
947#if B43_CALIB_ALL_LOCTLS
948static const struct b43_rfatt b43_full_rfatt_list_items[] = {
949 { .att = 0, .with_padmix = 0, },
950 { .att = 1, .with_padmix = 0, },
951 { .att = 2, .with_padmix = 0, },
952 { .att = 3, .with_padmix = 0, },
953 { .att = 4, .with_padmix = 0, },
954 { .att = 5, .with_padmix = 0, },
955 { .att = 6, .with_padmix = 0, },
956 { .att = 7, .with_padmix = 0, },
957 { .att = 8, .with_padmix = 0, },
958 { .att = 9, .with_padmix = 0, },
959 { .att = 10, .with_padmix = 0, },
960 { .att = 11, .with_padmix = 0, },
961 { .att = 12, .with_padmix = 0, },
962 { .att = 13, .with_padmix = 0, },
963 { .att = 14, .with_padmix = 0, },
964 { .att = 15, .with_padmix = 0, },
965 { .att = 0, .with_padmix = 1, },
966 { .att = 1, .with_padmix = 1, },
967 { .att = 2, .with_padmix = 1, },
968 { .att = 3, .with_padmix = 1, },
969 { .att = 4, .with_padmix = 1, },
970 { .att = 5, .with_padmix = 1, },
971 { .att = 6, .with_padmix = 1, },
972 { .att = 7, .with_padmix = 1, },
973 { .att = 8, .with_padmix = 1, },
974 { .att = 9, .with_padmix = 1, },
975 { .att = 10, .with_padmix = 1, },
976 { .att = 11, .with_padmix = 1, },
977 { .att = 12, .with_padmix = 1, },
978 { .att = 13, .with_padmix = 1, },
979 { .att = 14, .with_padmix = 1, },
980 { .att = 15, .with_padmix = 1, },
981};
982static const struct b43_rfatt_list b43_full_rfatt_list = {
983 .list = b43_full_rfatt_list_items,
984 .len = ARRAY_SIZE(b43_full_rfatt_list_items),
985};
986
987static const struct b43_bbatt b43_full_bbatt_list_items[] = {
988 { .att = 0, },
989 { .att = 1, },
990 { .att = 2, },
991 { .att = 3, },
992 { .att = 4, },
993 { .att = 5, },
994 { .att = 6, },
995 { .att = 7, },
996 { .att = 8, },
997 { .att = 9, },
998 { .att = 10, },
999 { .att = 11, },
1000};
1001static const struct b43_bbatt_list b43_full_bbatt_list = {
1002 .list = b43_full_bbatt_list_items,
1003 .len = ARRAY_SIZE(b43_full_bbatt_list_items),
1004};
1005#endif /* B43_CALIB_ALL_LOCTLS */
1006
1007static void lo_measure(struct b43_wldev *dev)
1008{
1009 struct b43_phy *phy = &dev->phy;
1010 struct b43_txpower_lo_control *lo = phy->lo_control;
1011 struct b43_loctl loctl = {
1012 .i = 0,
1013 .q = 0,
1014 };
1015 struct b43_loctl *ploctl;
1016 int max_rx_gain;
1017 int rfidx, bbidx;
1018 const struct b43_bbatt_list *bbatt_list;
1019 const struct b43_rfatt_list *rfatt_list;
1020
1021 /* Values from the "TXCTL Register and Value Table" */
1022 u16 txctl_reg;
1023 u16 txctl_value;
1024 u16 pad_mix_gain;
1025
1026 bbatt_list = &lo->bbatt_list;
1027 rfatt_list = &lo->rfatt_list;
1028#if B43_CALIB_ALL_LOCTLS
1029 bbatt_list = &b43_full_bbatt_list;
1030 rfatt_list = &b43_full_rfatt_list;
1031#endif
1032
1033 txctl_reg = lo_txctl_register_table(dev, &txctl_value, &pad_mix_gain);
1034
1035 for (rfidx = 0; rfidx < rfatt_list->len; rfidx++) {
1036
1037 b43_radio_write16(dev, 0x43, (b43_radio_read16(dev, 0x43)
1038 & 0xFFF0) |
1039 rfatt_list->list[rfidx].att);
1040 b43_radio_write16(dev, txctl_reg,
1041 (b43_radio_read16(dev, txctl_reg)
1042 & ~txctl_value)
1043 | (rfatt_list->list[rfidx].with_padmix ?
1044 txctl_value : 0));
1045
1046 for (bbidx = 0; bbidx < bbatt_list->len; bbidx++) {
1047 if (lo->rebuild) {
1048#if B43_CALIB_ALL_LOCTLS
1049 ploctl = b43_get_lo_g_ctl(dev,
1050 &rfatt_list->list[rfidx],
1051 &bbatt_list->list[bbidx]);
1052#else
1053 ploctl = b43_get_lo_g_ctl_nopadmix(dev,
1054 &rfatt_list->
1055 list[rfidx],
1056 &bbatt_list->
1057 list[bbidx]);
1058#endif
1059 } else {
1060 ploctl = b43_get_lo_g_ctl(dev,
1061 &rfatt_list->list[rfidx],
1062 &bbatt_list->list[bbidx]);
1063 if (!ploctl->used)
1064 continue;
1065 }
1066 memcpy(&loctl, ploctl, sizeof(loctl));
1067 loctl.i = 0;
1068 loctl.q = 0;
1069
1070 max_rx_gain = rfatt_list->list[rfidx].att * 2;
1071 max_rx_gain += bbatt_list->list[bbidx].att / 2;
1072 if (rfatt_list->list[rfidx].with_padmix)
1073 max_rx_gain -= pad_mix_gain;
1074 if (has_loopback_gain(phy))
1075 max_rx_gain += phy->max_lb_gain;
1076 lo_measure_gain_values(dev, max_rx_gain,
1077 has_loopback_gain(phy));
1078
1079 b43_phy_set_baseband_attenuation(dev,
1080 bbatt_list->list[bbidx].att);
1081 lo_probe_loctls_statemachine(dev, &loctl, &max_rx_gain);
1082 if (phy->type == B43_PHYTYPE_B) {
1083 loctl.i++;
1084 loctl.q++;
1085 }
1086 b43_loctl_set_calibrated(&loctl, 1);
1087 memcpy(ploctl, &loctl, sizeof(loctl));
1088 }
1089 }
1090}
1091
1092#if B43_DEBUG
1093static void do_validate_loctl(struct b43_wldev *dev, struct b43_loctl *control)
1094{
1095 const int is_initializing = (b43_status(dev) == B43_STAT_UNINIT);
1096 int i = control->i;
1097 int q = control->q;
1098
1099 if (b43_loctl_is_calibrated(control)) {
1100 if ((abs(i) > 16) || (abs(q) > 16))
1101 goto error;
1102 } else {
1103 if (control->used)
1104 goto error;
1105 if (dev->phy.lo_control->rebuild) {
1106 control->i = 0;
1107 control->q = 0;
1108 if ((i != B43_LOCTL_POISON) ||
1109 (q != B43_LOCTL_POISON))
1110 goto error;
1111 }
1112 }
1113 if (is_initializing && control->used)
1114 goto error;
1115
1116 return;
1117error:
1118 b43err(dev->wl, "LO control pair validation failed "
1119 "(I: %d, Q: %d, used %u, calib: %u, initing: %d)\n",
1120 i, q, control->used,
1121 b43_loctl_is_calibrated(control),
1122 is_initializing);
1123}
1124
1125static void validate_all_loctls(struct b43_wldev *dev)
1126{
1127 b43_call_for_each_loctl(dev, do_validate_loctl);
1128}
1129
1130static void do_reset_calib(struct b43_wldev *dev, struct b43_loctl *control)
1131{
1132 if (dev->phy.lo_control->rebuild ||
1133 control->used) {
1134 b43_loctl_set_calibrated(control, 0);
1135 control->i = B43_LOCTL_POISON;
1136 control->q = B43_LOCTL_POISON;
1137 }
1138}
1139
1140static void reset_all_loctl_calibration_states(struct b43_wldev *dev)
1141{
1142 b43_call_for_each_loctl(dev, do_reset_calib);
1143}
1144
1145#else /* B43_DEBUG */
1146static inline void validate_all_loctls(struct b43_wldev *dev) { }
1147static inline void reset_all_loctl_calibration_states(struct b43_wldev *dev) { }
1148#endif /* B43_DEBUG */
1149
1150void b43_lo_g_measure(struct b43_wldev *dev)
1151{
1152 struct b43_phy *phy = &dev->phy;
1153 struct lo_g_saved_values uninitialized_var(sav);
1154
1155 B43_WARN_ON((phy->type != B43_PHYTYPE_B) &&
1156 (phy->type != B43_PHYTYPE_G));
1157
1158 sav.old_channel = phy->channel;
1159 lo_measure_setup(dev, &sav);
1160 reset_all_loctl_calibration_states(dev);
1161 lo_measure(dev);
1162 lo_measure_restore(dev, &sav);
1163
1164 validate_all_loctls(dev);
1165
1166 phy->lo_control->lo_measured = 1;
1167 phy->lo_control->rebuild = 0;
1168}
1169
1170#if B43_DEBUG
1171static void validate_loctl_calibration(struct b43_wldev *dev,
1172 struct b43_loctl *loctl,
1173 struct b43_rfatt *rfatt,
1174 struct b43_bbatt *bbatt)
1175{
1176 if (b43_loctl_is_calibrated(loctl))
1177 return;
1178 if (!dev->phy.lo_control->lo_measured) {
1179 /* On init we set the attenuation values before we
1180 * calibrated the LO. I guess that's OK. */
1181 return;
1182 }
1183 b43err(dev->wl, "Adjusting Local Oscillator to an uncalibrated "
1184 "control pair: rfatt=%u,%spadmix bbatt=%u\n",
1185 rfatt->att,
1186 (rfatt->with_padmix) ? "" : "no-",
1187 bbatt->att);
1188}
1189#else
1190static inline void validate_loctl_calibration(struct b43_wldev *dev,
1191 struct b43_loctl *loctl,
1192 struct b43_rfatt *rfatt,
1193 struct b43_bbatt *bbatt)
1194{
1195}
1196#endif
1197
1198static inline void fixup_rfatt_for_txcontrol(struct b43_rfatt *rf,
1199 u8 tx_control)
1200{
1201 if (tx_control & B43_TXCTL_TXMIX) {
1202 if (rf->att < 5)
1203 rf->att = 4;
1204 }
1205}
1206
1207void b43_lo_g_adjust(struct b43_wldev *dev)
1208{
1209 struct b43_phy *phy = &dev->phy;
1210 struct b43_rfatt rf;
1211 struct b43_loctl *loctl;
1212
1213 memcpy(&rf, &phy->rfatt, sizeof(rf));
1214 fixup_rfatt_for_txcontrol(&rf, phy->tx_control);
1215
1216 loctl = b43_get_lo_g_ctl(dev, &rf, &phy->bbatt);
1217 validate_loctl_calibration(dev, loctl, &rf, &phy->bbatt);
1218 b43_lo_write(dev, loctl);
1219}
1220
1221void b43_lo_g_adjust_to(struct b43_wldev *dev,
1222 u16 rfatt, u16 bbatt, u16 tx_control)
1223{
1224 struct b43_rfatt rf;
1225 struct b43_bbatt bb;
1226 struct b43_loctl *loctl;
1227
1228 memset(&rf, 0, sizeof(rf));
1229 memset(&bb, 0, sizeof(bb));
1230 rf.att = rfatt;
1231 bb.att = bbatt;
1232 fixup_rfatt_for_txcontrol(&rf, tx_control);
1233 loctl = b43_get_lo_g_ctl(dev, &rf, &bb);
1234 validate_loctl_calibration(dev, loctl, &rf, &bb);
1235 b43_lo_write(dev, loctl);
1236}
1237
1238static void do_mark_unused(struct b43_wldev *dev, struct b43_loctl *control)
1239{
1240 control->used = 0;
1241}
1242
1243void b43_lo_g_ctl_mark_all_unused(struct b43_wldev *dev)
1244{
1245 struct b43_phy *phy = &dev->phy;
1246 struct b43_txpower_lo_control *lo = phy->lo_control;
1247
1248 b43_call_for_each_loctl(dev, do_mark_unused);
1249 lo->rebuild = 1;
1250}
1251
1252void b43_lo_g_ctl_mark_cur_used(struct b43_wldev *dev)
1253{
1254 struct b43_phy *phy = &dev->phy;
1255 struct b43_rfatt rf;
1256
1257 memcpy(&rf, &phy->rfatt, sizeof(rf));
1258 fixup_rfatt_for_txcontrol(&rf, phy->tx_control);
1259
1260 b43_get_lo_g_ctl(dev, &rf, &phy->bbatt)->used = 1;
1261}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-10 22:29:43 -0500