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1/*
2
3 Broadcom B43 wireless driver
4 IEEE 802.11g PHY driver
5
6 Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
7 Copyright (c) 2005-2007 Stefano Brivio <stefano.brivio@polimi.it>
8 Copyright (c) 2005-2008 Michael Buesch <m@bues.ch>
9 Copyright (c) 2005, 2006 Danny van Dyk <kugelfang@gentoo.org>
10 Copyright (c) 2005, 2006 Andreas Jaggi <andreas.jaggi@waterwave.ch>
11
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 2 of the License, or
15 (at your option) any later version.
16
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
21
22 You should have received a copy of the GNU General Public License
23 along with this program; see the file COPYING. If not, write to
24 the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
25 Boston, MA 02110-1301, USA.
26
27*/
28
29#include "b43.h"
30#include "phy_g.h"
31#include "phy_common.h"
32#include "lo.h"
33#include "main.h"
34#include "wa.h"
35
36#include <linux/bitrev.h>
37#include <linux/slab.h>
38
39
40static const s8 b43_tssi2dbm_g_table[] = {
41 77, 77, 77, 76,
42 76, 76, 75, 75,
43 74, 74, 73, 73,
44 73, 72, 72, 71,
45 71, 70, 70, 69,
46 68, 68, 67, 67,
47 66, 65, 65, 64,
48 63, 63, 62, 61,
49 60, 59, 58, 57,
50 56, 55, 54, 53,
51 52, 50, 49, 47,
52 45, 43, 40, 37,
53 33, 28, 22, 14,
54 5, -7, -20, -20,
55 -20, -20, -20, -20,
56 -20, -20, -20, -20,
57};
58
59static const u8 b43_radio_channel_codes_bg[] = {
60 12, 17, 22, 27,
61 32, 37, 42, 47,
62 52, 57, 62, 67,
63 72, 84,
64};
65
66
67static void b43_calc_nrssi_threshold(struct b43_wldev *dev);
68
69
70#define bitrev4(tmp) (bitrev8(tmp) >> 4)
71
72
73/* Get the freq, as it has to be written to the device. */
74static inline u16 channel2freq_bg(u8 channel)
75{
76 B43_WARN_ON(!(channel >= 1 && channel <= 14));
77
78 return b43_radio_channel_codes_bg[channel - 1];
79}
80
81static void generate_rfatt_list(struct b43_wldev *dev,
82 struct b43_rfatt_list *list)
83{
84 struct b43_phy *phy = &dev->phy;
85
86 /* APHY.rev < 5 || GPHY.rev < 6 */
87 static const struct b43_rfatt rfatt_0[] = {
88 {.att = 3,.with_padmix = 0,},
89 {.att = 1,.with_padmix = 0,},
90 {.att = 5,.with_padmix = 0,},
91 {.att = 7,.with_padmix = 0,},
92 {.att = 9,.with_padmix = 0,},
93 {.att = 2,.with_padmix = 0,},
94 {.att = 0,.with_padmix = 0,},
95 {.att = 4,.with_padmix = 0,},
96 {.att = 6,.with_padmix = 0,},
97 {.att = 8,.with_padmix = 0,},
98 {.att = 1,.with_padmix = 1,},
99 {.att = 2,.with_padmix = 1,},
100 {.att = 3,.with_padmix = 1,},
101 {.att = 4,.with_padmix = 1,},
102 };
103 /* Radio.rev == 8 && Radio.version == 0x2050 */
104 static const struct b43_rfatt rfatt_1[] = {
105 {.att = 2,.with_padmix = 1,},
106 {.att = 4,.with_padmix = 1,},
107 {.att = 6,.with_padmix = 1,},
108 {.att = 8,.with_padmix = 1,},
109 {.att = 10,.with_padmix = 1,},
110 {.att = 12,.with_padmix = 1,},
111 {.att = 14,.with_padmix = 1,},
112 };
113 /* Otherwise */
114 static const struct b43_rfatt rfatt_2[] = {
115 {.att = 0,.with_padmix = 1,},
116 {.att = 2,.with_padmix = 1,},
117 {.att = 4,.with_padmix = 1,},
118 {.att = 6,.with_padmix = 1,},
119 {.att = 8,.with_padmix = 1,},
120 {.att = 9,.with_padmix = 1,},
121 {.att = 9,.with_padmix = 1,},
122 };
123
124 if (!b43_has_hardware_pctl(dev)) {
125 /* Software pctl */
126 list->list = rfatt_0;
127 list->len = ARRAY_SIZE(rfatt_0);
128 list->min_val = 0;
129 list->max_val = 9;
130 return;
131 }
132 if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
133 /* Hardware pctl */
134 list->list = rfatt_1;
135 list->len = ARRAY_SIZE(rfatt_1);
136 list->min_val = 0;
137 list->max_val = 14;
138 return;
139 }
140 /* Hardware pctl */
141 list->list = rfatt_2;
142 list->len = ARRAY_SIZE(rfatt_2);
143 list->min_val = 0;
144 list->max_val = 9;
145}
146
147static void generate_bbatt_list(struct b43_wldev *dev,
148 struct b43_bbatt_list *list)
149{
150 static const struct b43_bbatt bbatt_0[] = {
151 {.att = 0,},
152 {.att = 1,},
153 {.att = 2,},
154 {.att = 3,},
155 {.att = 4,},
156 {.att = 5,},
157 {.att = 6,},
158 {.att = 7,},
159 {.att = 8,},
160 };
161
162 list->list = bbatt_0;
163 list->len = ARRAY_SIZE(bbatt_0);
164 list->min_val = 0;
165 list->max_val = 8;
166}
167
168static void b43_shm_clear_tssi(struct b43_wldev *dev)
169{
170 b43_shm_write16(dev, B43_SHM_SHARED, 0x0058, 0x7F7F);
171 b43_shm_write16(dev, B43_SHM_SHARED, 0x005a, 0x7F7F);
172 b43_shm_write16(dev, B43_SHM_SHARED, 0x0070, 0x7F7F);
173 b43_shm_write16(dev, B43_SHM_SHARED, 0x0072, 0x7F7F);
174}
175
176/* Synthetic PU workaround */
177static void b43_synth_pu_workaround(struct b43_wldev *dev, u8 channel)
178{
179 struct b43_phy *phy = &dev->phy;
180
181 might_sleep();
182
183 if (phy->radio_ver != 0x2050 || phy->radio_rev >= 6) {
184 /* We do not need the workaround. */
185 return;
186 }
187
188 if (channel <= 10) {
189 b43_write16(dev, B43_MMIO_CHANNEL,
190 channel2freq_bg(channel + 4));
191 } else {
192 b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(1));
193 }
194 msleep(1);
195 b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel));
196}
197
198/* Set the baseband attenuation value on chip. */
199void b43_gphy_set_baseband_attenuation(struct b43_wldev *dev,
200 u16 baseband_attenuation)
201{
202 struct b43_phy *phy = &dev->phy;
203
204 if (phy->analog == 0) {
205 b43_write16(dev, B43_MMIO_PHY0, (b43_read16(dev, B43_MMIO_PHY0)
206 & 0xFFF0) |
207 baseband_attenuation);
208 } else if (phy->analog > 1) {
209 b43_phy_maskset(dev, B43_PHY_DACCTL, 0xFFC3, (baseband_attenuation << 2));
210 } else {
211 b43_phy_maskset(dev, B43_PHY_DACCTL, 0xFF87, (baseband_attenuation << 3));
212 }
213}
214
215/* Adjust the transmission power output (G-PHY) */
216static void b43_set_txpower_g(struct b43_wldev *dev,
217 const struct b43_bbatt *bbatt,
218 const struct b43_rfatt *rfatt, u8 tx_control)
219{
220 struct b43_phy *phy = &dev->phy;
221 struct b43_phy_g *gphy = phy->g;
222 struct b43_txpower_lo_control *lo = gphy->lo_control;
223 u16 bb, rf;
224 u16 tx_bias, tx_magn;
225
226 bb = bbatt->att;
227 rf = rfatt->att;
228 tx_bias = lo->tx_bias;
229 tx_magn = lo->tx_magn;
230 if (unlikely(tx_bias == 0xFF))
231 tx_bias = 0;
232
233 /* Save the values for later. Use memmove, because it's valid
234 * to pass &gphy->rfatt as rfatt pointer argument. Same for bbatt. */
235 gphy->tx_control = tx_control;
236 memmove(&gphy->rfatt, rfatt, sizeof(*rfatt));
237 gphy->rfatt.with_padmix = !!(tx_control & B43_TXCTL_TXMIX);
238 memmove(&gphy->bbatt, bbatt, sizeof(*bbatt));
239
240 if (b43_debug(dev, B43_DBG_XMITPOWER)) {
241 b43dbg(dev->wl, "Tuning TX-power to bbatt(%u), "
242 "rfatt(%u), tx_control(0x%02X), "
243 "tx_bias(0x%02X), tx_magn(0x%02X)\n",
244 bb, rf, tx_control, tx_bias, tx_magn);
245 }
246
247 b43_gphy_set_baseband_attenuation(dev, bb);
248 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_RFATT, rf);
249 if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
250 b43_radio_write16(dev, 0x43,
251 (rf & 0x000F) | (tx_control & 0x0070));
252 } else {
253 b43_radio_maskset(dev, 0x43, 0xFFF0, (rf & 0x000F));
254 b43_radio_maskset(dev, 0x52, ~0x0070, (tx_control & 0x0070));
255 }
256 if (has_tx_magnification(phy)) {
257 b43_radio_write16(dev, 0x52, tx_magn | tx_bias);
258 } else {
259 b43_radio_maskset(dev, 0x52, 0xFFF0, (tx_bias & 0x000F));
260 }
261 b43_lo_g_adjust(dev);
262}
263
264/* GPHY_TSSI_Power_Lookup_Table_Init */
265static void b43_gphy_tssi_power_lt_init(struct b43_wldev *dev)
266{
267 struct b43_phy_g *gphy = dev->phy.g;
268 int i;
269 u16 value;
270
271 for (i = 0; i < 32; i++)
272 b43_ofdmtab_write16(dev, 0x3C20, i, gphy->tssi2dbm[i]);
273 for (i = 32; i < 64; i++)
274 b43_ofdmtab_write16(dev, 0x3C00, i - 32, gphy->tssi2dbm[i]);
275 for (i = 0; i < 64; i += 2) {
276 value = (u16) gphy->tssi2dbm[i];
277 value |= ((u16) gphy->tssi2dbm[i + 1]) << 8;
278 b43_phy_write(dev, 0x380 + (i / 2), value);
279 }
280}
281
282/* GPHY_Gain_Lookup_Table_Init */
283static void b43_gphy_gain_lt_init(struct b43_wldev *dev)
284{
285 struct b43_phy *phy = &dev->phy;
286 struct b43_phy_g *gphy = phy->g;
287 struct b43_txpower_lo_control *lo = gphy->lo_control;
288 u16 nr_written = 0;
289 u16 tmp;
290 u8 rf, bb;
291
292 for (rf = 0; rf < lo->rfatt_list.len; rf++) {
293 for (bb = 0; bb < lo->bbatt_list.len; bb++) {
294 if (nr_written >= 0x40)
295 return;
296 tmp = lo->bbatt_list.list[bb].att;
297 tmp <<= 8;
298 if (phy->radio_rev == 8)
299 tmp |= 0x50;
300 else
301 tmp |= 0x40;
302 tmp |= lo->rfatt_list.list[rf].att;
303 b43_phy_write(dev, 0x3C0 + nr_written, tmp);
304 nr_written++;
305 }
306 }
307}
308
309static void b43_set_all_gains(struct b43_wldev *dev,
310 s16 first, s16 second, s16 third)
311{
312 struct b43_phy *phy = &dev->phy;
313 u16 i;
314 u16 start = 0x08, end = 0x18;
315 u16 tmp;
316 u16 table;
317
318 if (phy->rev <= 1) {
319 start = 0x10;
320 end = 0x20;
321 }
322
323 table = B43_OFDMTAB_GAINX;
324 if (phy->rev <= 1)
325 table = B43_OFDMTAB_GAINX_R1;
326 for (i = 0; i < 4; i++)
327 b43_ofdmtab_write16(dev, table, i, first);
328
329 for (i = start; i < end; i++)
330 b43_ofdmtab_write16(dev, table, i, second);
331
332 if (third != -1) {
333 tmp = ((u16) third << 14) | ((u16) third << 6);
334 b43_phy_maskset(dev, 0x04A0, 0xBFBF, tmp);
335 b43_phy_maskset(dev, 0x04A1, 0xBFBF, tmp);
336 b43_phy_maskset(dev, 0x04A2, 0xBFBF, tmp);
337 }
338 b43_dummy_transmission(dev, false, true);
339}
340
341static void b43_set_original_gains(struct b43_wldev *dev)
342{
343 struct b43_phy *phy = &dev->phy;
344 u16 i, tmp;
345 u16 table;
346 u16 start = 0x0008, end = 0x0018;
347
348 if (phy->rev <= 1) {
349 start = 0x0010;
350 end = 0x0020;
351 }
352
353 table = B43_OFDMTAB_GAINX;
354 if (phy->rev <= 1)
355 table = B43_OFDMTAB_GAINX_R1;
356 for (i = 0; i < 4; i++) {
357 tmp = (i & 0xFFFC);
358 tmp |= (i & 0x0001) << 1;
359 tmp |= (i & 0x0002) >> 1;
360
361 b43_ofdmtab_write16(dev, table, i, tmp);
362 }
363
364 for (i = start; i < end; i++)
365 b43_ofdmtab_write16(dev, table, i, i - start);
366
367 b43_phy_maskset(dev, 0x04A0, 0xBFBF, 0x4040);
368 b43_phy_maskset(dev, 0x04A1, 0xBFBF, 0x4040);
369 b43_phy_maskset(dev, 0x04A2, 0xBFBF, 0x4000);
370 b43_dummy_transmission(dev, false, true);
371}
372
373/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
374static void b43_nrssi_hw_write(struct b43_wldev *dev, u16 offset, s16 val)
375{
376 b43_phy_write(dev, B43_PHY_NRSSILT_CTRL, offset);
377 b43_phy_write(dev, B43_PHY_NRSSILT_DATA, (u16) val);
378}
379
380/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
381static s16 b43_nrssi_hw_read(struct b43_wldev *dev, u16 offset)
382{
383 u16 val;
384
385 b43_phy_write(dev, B43_PHY_NRSSILT_CTRL, offset);
386 val = b43_phy_read(dev, B43_PHY_NRSSILT_DATA);
387
388 return (s16) val;
389}
390
391/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
392static void b43_nrssi_hw_update(struct b43_wldev *dev, u16 val)
393{
394 u16 i;
395 s16 tmp;
396
397 for (i = 0; i < 64; i++) {
398 tmp = b43_nrssi_hw_read(dev, i);
399 tmp -= val;
400 tmp = clamp_val(tmp, -32, 31);
401 b43_nrssi_hw_write(dev, i, tmp);
402 }
403}
404
405/* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
406static void b43_nrssi_mem_update(struct b43_wldev *dev)
407{
408 struct b43_phy_g *gphy = dev->phy.g;
409 s16 i, delta;
410 s32 tmp;
411
412 delta = 0x1F - gphy->nrssi[0];
413 for (i = 0; i < 64; i++) {
414 tmp = (i - delta) * gphy->nrssislope;
415 tmp /= 0x10000;
416 tmp += 0x3A;
417 tmp = clamp_val(tmp, 0, 0x3F);
418 gphy->nrssi_lt[i] = tmp;
419 }
420}
421
422static void b43_calc_nrssi_offset(struct b43_wldev *dev)
423{
424 struct b43_phy *phy = &dev->phy;
425 u16 backup[20] = { 0 };
426 s16 v47F;
427 u16 i;
428 u16 saved = 0xFFFF;
429
430 backup[0] = b43_phy_read(dev, 0x0001);
431 backup[1] = b43_phy_read(dev, 0x0811);
432 backup[2] = b43_phy_read(dev, 0x0812);
433 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
434 backup[3] = b43_phy_read(dev, 0x0814);
435 backup[4] = b43_phy_read(dev, 0x0815);
436 }
437 backup[5] = b43_phy_read(dev, 0x005A);
438 backup[6] = b43_phy_read(dev, 0x0059);
439 backup[7] = b43_phy_read(dev, 0x0058);
440 backup[8] = b43_phy_read(dev, 0x000A);
441 backup[9] = b43_phy_read(dev, 0x0003);
442 backup[10] = b43_radio_read16(dev, 0x007A);
443 backup[11] = b43_radio_read16(dev, 0x0043);
444
445 b43_phy_mask(dev, 0x0429, 0x7FFF);
446 b43_phy_maskset(dev, 0x0001, 0x3FFF, 0x4000);
447 b43_phy_set(dev, 0x0811, 0x000C);
448 b43_phy_maskset(dev, 0x0812, 0xFFF3, 0x0004);
449 b43_phy_mask(dev, 0x0802, ~(0x1 | 0x2));
450 if (phy->rev >= 6) {
451 backup[12] = b43_phy_read(dev, 0x002E);
452 backup[13] = b43_phy_read(dev, 0x002F);
453 backup[14] = b43_phy_read(dev, 0x080F);
454 backup[15] = b43_phy_read(dev, 0x0810);
455 backup[16] = b43_phy_read(dev, 0x0801);
456 backup[17] = b43_phy_read(dev, 0x0060);
457 backup[18] = b43_phy_read(dev, 0x0014);
458 backup[19] = b43_phy_read(dev, 0x0478);
459
460 b43_phy_write(dev, 0x002E, 0);
461 b43_phy_write(dev, 0x002F, 0);
462 b43_phy_write(dev, 0x080F, 0);
463 b43_phy_write(dev, 0x0810, 0);
464 b43_phy_set(dev, 0x0478, 0x0100);
465 b43_phy_set(dev, 0x0801, 0x0040);
466 b43_phy_set(dev, 0x0060, 0x0040);
467 b43_phy_set(dev, 0x0014, 0x0200);
468 }
469 b43_radio_set(dev, 0x007A, 0x0070);
470 b43_radio_set(dev, 0x007A, 0x0080);
471 udelay(30);
472
473 v47F = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
474 if (v47F >= 0x20)
475 v47F -= 0x40;
476 if (v47F == 31) {
477 for (i = 7; i >= 4; i--) {
478 b43_radio_write16(dev, 0x007B, i);
479 udelay(20);
480 v47F =
481 (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
482 if (v47F >= 0x20)
483 v47F -= 0x40;
484 if (v47F < 31 && saved == 0xFFFF)
485 saved = i;
486 }
487 if (saved == 0xFFFF)
488 saved = 4;
489 } else {
490 b43_radio_mask(dev, 0x007A, 0x007F);
491 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
492 b43_phy_set(dev, 0x0814, 0x0001);
493 b43_phy_mask(dev, 0x0815, 0xFFFE);
494 }
495 b43_phy_set(dev, 0x0811, 0x000C);
496 b43_phy_set(dev, 0x0812, 0x000C);
497 b43_phy_set(dev, 0x0811, 0x0030);
498 b43_phy_set(dev, 0x0812, 0x0030);
499 b43_phy_write(dev, 0x005A, 0x0480);
500 b43_phy_write(dev, 0x0059, 0x0810);
501 b43_phy_write(dev, 0x0058, 0x000D);
502 if (phy->rev == 0) {
503 b43_phy_write(dev, 0x0003, 0x0122);
504 } else {
505 b43_phy_set(dev, 0x000A, 0x2000);
506 }
507 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
508 b43_phy_set(dev, 0x0814, 0x0004);
509 b43_phy_mask(dev, 0x0815, 0xFFFB);
510 }
511 b43_phy_maskset(dev, 0x0003, 0xFF9F, 0x0040);
512 b43_radio_set(dev, 0x007A, 0x000F);
513 b43_set_all_gains(dev, 3, 0, 1);
514 b43_radio_maskset(dev, 0x0043, 0x00F0, 0x000F);
515 udelay(30);
516 v47F = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
517 if (v47F >= 0x20)
518 v47F -= 0x40;
519 if (v47F == -32) {
520 for (i = 0; i < 4; i++) {
521 b43_radio_write16(dev, 0x007B, i);
522 udelay(20);
523 v47F =
524 (s16) ((b43_phy_read(dev, 0x047F) >> 8) &
525 0x003F);
526 if (v47F >= 0x20)
527 v47F -= 0x40;
528 if (v47F > -31 && saved == 0xFFFF)
529 saved = i;
530 }
531 if (saved == 0xFFFF)
532 saved = 3;
533 } else
534 saved = 0;
535 }
536 b43_radio_write16(dev, 0x007B, saved);
537
538 if (phy->rev >= 6) {
539 b43_phy_write(dev, 0x002E, backup[12]);
540 b43_phy_write(dev, 0x002F, backup[13]);
541 b43_phy_write(dev, 0x080F, backup[14]);
542 b43_phy_write(dev, 0x0810, backup[15]);
543 }
544 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
545 b43_phy_write(dev, 0x0814, backup[3]);
546 b43_phy_write(dev, 0x0815, backup[4]);
547 }
548 b43_phy_write(dev, 0x005A, backup[5]);
549 b43_phy_write(dev, 0x0059, backup[6]);
550 b43_phy_write(dev, 0x0058, backup[7]);
551 b43_phy_write(dev, 0x000A, backup[8]);
552 b43_phy_write(dev, 0x0003, backup[9]);
553 b43_radio_write16(dev, 0x0043, backup[11]);
554 b43_radio_write16(dev, 0x007A, backup[10]);
555 b43_phy_write(dev, 0x0802, b43_phy_read(dev, 0x0802) | 0x1 | 0x2);
556 b43_phy_set(dev, 0x0429, 0x8000);
557 b43_set_original_gains(dev);
558 if (phy->rev >= 6) {
559 b43_phy_write(dev, 0x0801, backup[16]);
560 b43_phy_write(dev, 0x0060, backup[17]);
561 b43_phy_write(dev, 0x0014, backup[18]);
562 b43_phy_write(dev, 0x0478, backup[19]);
563 }
564 b43_phy_write(dev, 0x0001, backup[0]);
565 b43_phy_write(dev, 0x0812, backup[2]);
566 b43_phy_write(dev, 0x0811, backup[1]);
567}
568
569static void b43_calc_nrssi_slope(struct b43_wldev *dev)
570{
571 struct b43_phy *phy = &dev->phy;
572 struct b43_phy_g *gphy = phy->g;
573 u16 backup[18] = { 0 };
574 u16 tmp;
575 s16 nrssi0, nrssi1;
576
577 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
578
579 if (phy->radio_rev >= 9)
580 return;
581 if (phy->radio_rev == 8)
582 b43_calc_nrssi_offset(dev);
583
584 b43_phy_mask(dev, B43_PHY_G_CRS, 0x7FFF);
585 b43_phy_mask(dev, 0x0802, 0xFFFC);
586 backup[7] = b43_read16(dev, 0x03E2);
587 b43_write16(dev, 0x03E2, b43_read16(dev, 0x03E2) | 0x8000);
588 backup[0] = b43_radio_read16(dev, 0x007A);
589 backup[1] = b43_radio_read16(dev, 0x0052);
590 backup[2] = b43_radio_read16(dev, 0x0043);
591 backup[3] = b43_phy_read(dev, 0x0015);
592 backup[4] = b43_phy_read(dev, 0x005A);
593 backup[5] = b43_phy_read(dev, 0x0059);
594 backup[6] = b43_phy_read(dev, 0x0058);
595 backup[8] = b43_read16(dev, 0x03E6);
596 backup[9] = b43_read16(dev, B43_MMIO_CHANNEL_EXT);
597 if (phy->rev >= 3) {
598 backup[10] = b43_phy_read(dev, 0x002E);
599 backup[11] = b43_phy_read(dev, 0x002F);
600 backup[12] = b43_phy_read(dev, 0x080F);
601 backup[13] = b43_phy_read(dev, B43_PHY_G_LO_CONTROL);
602 backup[14] = b43_phy_read(dev, 0x0801);
603 backup[15] = b43_phy_read(dev, 0x0060);
604 backup[16] = b43_phy_read(dev, 0x0014);
605 backup[17] = b43_phy_read(dev, 0x0478);
606 b43_phy_write(dev, 0x002E, 0);
607 b43_phy_write(dev, B43_PHY_G_LO_CONTROL, 0);
608 switch (phy->rev) {
609 case 4:
610 case 6:
611 case 7:
612 b43_phy_set(dev, 0x0478, 0x0100);
613 b43_phy_set(dev, 0x0801, 0x0040);
614 break;
615 case 3:
616 case 5:
617 b43_phy_mask(dev, 0x0801, 0xFFBF);
618 break;
619 }
620 b43_phy_set(dev, 0x0060, 0x0040);
621 b43_phy_set(dev, 0x0014, 0x0200);
622 }
623 b43_radio_set(dev, 0x007A, 0x0070);
624 b43_set_all_gains(dev, 0, 8, 0);
625 b43_radio_mask(dev, 0x007A, 0x00F7);
626 if (phy->rev >= 2) {
627 b43_phy_maskset(dev, 0x0811, 0xFFCF, 0x0030);
628 b43_phy_maskset(dev, 0x0812, 0xFFCF, 0x0010);
629 }
630 b43_radio_set(dev, 0x007A, 0x0080);
631 udelay(20);
632
633 nrssi0 = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
634 if (nrssi0 >= 0x0020)
635 nrssi0 -= 0x0040;
636
637 b43_radio_mask(dev, 0x007A, 0x007F);
638 if (phy->rev >= 2) {
639 b43_phy_maskset(dev, 0x0003, 0xFF9F, 0x0040);
640 }
641
642 b43_write16(dev, B43_MMIO_CHANNEL_EXT,
643 b43_read16(dev, B43_MMIO_CHANNEL_EXT)
644 | 0x2000);
645 b43_radio_set(dev, 0x007A, 0x000F);
646 b43_phy_write(dev, 0x0015, 0xF330);
647 if (phy->rev >= 2) {
648 b43_phy_maskset(dev, 0x0812, 0xFFCF, 0x0020);
649 b43_phy_maskset(dev, 0x0811, 0xFFCF, 0x0020);
650 }
651
652 b43_set_all_gains(dev, 3, 0, 1);
653 if (phy->radio_rev == 8) {
654 b43_radio_write16(dev, 0x0043, 0x001F);
655 } else {
656 tmp = b43_radio_read16(dev, 0x0052) & 0xFF0F;
657 b43_radio_write16(dev, 0x0052, tmp | 0x0060);
658 tmp = b43_radio_read16(dev, 0x0043) & 0xFFF0;
659 b43_radio_write16(dev, 0x0043, tmp | 0x0009);
660 }
661 b43_phy_write(dev, 0x005A, 0x0480);
662 b43_phy_write(dev, 0x0059, 0x0810);
663 b43_phy_write(dev, 0x0058, 0x000D);
664 udelay(20);
665 nrssi1 = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
666 if (nrssi1 >= 0x0020)
667 nrssi1 -= 0x0040;
668 if (nrssi0 == nrssi1)
669 gphy->nrssislope = 0x00010000;
670 else
671 gphy->nrssislope = 0x00400000 / (nrssi0 - nrssi1);
672 if (nrssi0 >= -4) {
673 gphy->nrssi[0] = nrssi1;
674 gphy->nrssi[1] = nrssi0;
675 }
676 if (phy->rev >= 3) {
677 b43_phy_write(dev, 0x002E, backup[10]);
678 b43_phy_write(dev, 0x002F, backup[11]);
679 b43_phy_write(dev, 0x080F, backup[12]);
680 b43_phy_write(dev, B43_PHY_G_LO_CONTROL, backup[13]);
681 }
682 if (phy->rev >= 2) {
683 b43_phy_mask(dev, 0x0812, 0xFFCF);
684 b43_phy_mask(dev, 0x0811, 0xFFCF);
685 }
686
687 b43_radio_write16(dev, 0x007A, backup[0]);
688 b43_radio_write16(dev, 0x0052, backup[1]);
689 b43_radio_write16(dev, 0x0043, backup[2]);
690 b43_write16(dev, 0x03E2, backup[7]);
691 b43_write16(dev, 0x03E6, backup[8]);
692 b43_write16(dev, B43_MMIO_CHANNEL_EXT, backup[9]);
693 b43_phy_write(dev, 0x0015, backup[3]);
694 b43_phy_write(dev, 0x005A, backup[4]);
695 b43_phy_write(dev, 0x0059, backup[5]);
696 b43_phy_write(dev, 0x0058, backup[6]);
697 b43_synth_pu_workaround(dev, phy->channel);
698 b43_phy_set(dev, 0x0802, (0x0001 | 0x0002));
699 b43_set_original_gains(dev);
700 b43_phy_set(dev, B43_PHY_G_CRS, 0x8000);
701 if (phy->rev >= 3) {
702 b43_phy_write(dev, 0x0801, backup[14]);
703 b43_phy_write(dev, 0x0060, backup[15]);
704 b43_phy_write(dev, 0x0014, backup[16]);
705 b43_phy_write(dev, 0x0478, backup[17]);
706 }
707 b43_nrssi_mem_update(dev);
708 b43_calc_nrssi_threshold(dev);
709}
710
711static void b43_calc_nrssi_threshold(struct b43_wldev *dev)
712{
713 struct b43_phy *phy = &dev->phy;
714 struct b43_phy_g *gphy = phy->g;
715 s32 a, b;
716 s16 tmp16;
717 u16 tmp_u16;
718
719 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
720
721 if (!phy->gmode ||
722 !(dev->dev->bus_sprom->boardflags_lo & B43_BFL_RSSI)) {
723 tmp16 = b43_nrssi_hw_read(dev, 0x20);
724 if (tmp16 >= 0x20)
725 tmp16 -= 0x40;
726 if (tmp16 < 3) {
727 b43_phy_maskset(dev, 0x048A, 0xF000, 0x09EB);
728 } else {
729 b43_phy_maskset(dev, 0x048A, 0xF000, 0x0AED);
730 }
731 } else {
732 if (gphy->interfmode == B43_INTERFMODE_NONWLAN) {
733 a = 0xE;
734 b = 0xA;
735 } else if (!gphy->aci_wlan_automatic && gphy->aci_enable) {
736 a = 0x13;
737 b = 0x12;
738 } else {
739 a = 0xE;
740 b = 0x11;
741 }
742
743 a = a * (gphy->nrssi[1] - gphy->nrssi[0]);
744 a += (gphy->nrssi[0] << 6);
745 if (a < 32)
746 a += 31;
747 else
748 a += 32;
749 a = a >> 6;
750 a = clamp_val(a, -31, 31);
751
752 b = b * (gphy->nrssi[1] - gphy->nrssi[0]);
753 b += (gphy->nrssi[0] << 6);
754 if (b < 32)
755 b += 31;
756 else
757 b += 32;
758 b = b >> 6;
759 b = clamp_val(b, -31, 31);
760
761 tmp_u16 = b43_phy_read(dev, 0x048A) & 0xF000;
762 tmp_u16 |= ((u32) b & 0x0000003F);
763 tmp_u16 |= (((u32) a & 0x0000003F) << 6);
764 b43_phy_write(dev, 0x048A, tmp_u16);
765 }
766}
767
768/* Stack implementation to save/restore values from the
769 * interference mitigation code.
770 * It is save to restore values in random order.
771 */
772static void _stack_save(u32 *_stackptr, size_t *stackidx,
773 u8 id, u16 offset, u16 value)
774{
775 u32 *stackptr = &(_stackptr[*stackidx]);
776
777 B43_WARN_ON(offset & 0xF000);
778 B43_WARN_ON(id & 0xF0);
779 *stackptr = offset;
780 *stackptr |= ((u32) id) << 12;
781 *stackptr |= ((u32) value) << 16;
782 (*stackidx)++;
783 B43_WARN_ON(*stackidx >= B43_INTERFSTACK_SIZE);
784}
785
786static u16 _stack_restore(u32 *stackptr, u8 id, u16 offset)
787{
788 size_t i;
789
790 B43_WARN_ON(offset & 0xF000);
791 B43_WARN_ON(id & 0xF0);
792 for (i = 0; i < B43_INTERFSTACK_SIZE; i++, stackptr++) {
793 if ((*stackptr & 0x00000FFF) != offset)
794 continue;
795 if (((*stackptr & 0x0000F000) >> 12) != id)
796 continue;
797 return ((*stackptr & 0xFFFF0000) >> 16);
798 }
799 B43_WARN_ON(1);
800
801 return 0;
802}
803
804#define phy_stacksave(offset) \
805 do { \
806 _stack_save(stack, &stackidx, 0x1, (offset), \
807 b43_phy_read(dev, (offset))); \
808 } while (0)
809#define phy_stackrestore(offset) \
810 do { \
811 b43_phy_write(dev, (offset), \
812 _stack_restore(stack, 0x1, \
813 (offset))); \
814 } while (0)
815#define radio_stacksave(offset) \
816 do { \
817 _stack_save(stack, &stackidx, 0x2, (offset), \
818 b43_radio_read16(dev, (offset))); \
819 } while (0)
820#define radio_stackrestore(offset) \
821 do { \
822 b43_radio_write16(dev, (offset), \
823 _stack_restore(stack, 0x2, \
824 (offset))); \
825 } while (0)
826#define ofdmtab_stacksave(table, offset) \
827 do { \
828 _stack_save(stack, &stackidx, 0x3, (offset)|(table), \
829 b43_ofdmtab_read16(dev, (table), (offset))); \
830 } while (0)
831#define ofdmtab_stackrestore(table, offset) \
832 do { \
833 b43_ofdmtab_write16(dev, (table), (offset), \
834 _stack_restore(stack, 0x3, \
835 (offset)|(table))); \
836 } while (0)
837
838static void
839b43_radio_interference_mitigation_enable(struct b43_wldev *dev, int mode)
840{
841 struct b43_phy *phy = &dev->phy;
842 struct b43_phy_g *gphy = phy->g;
843 u16 tmp, flipped;
844 size_t stackidx = 0;
845 u32 *stack = gphy->interfstack;
846
847 switch (mode) {
848 case B43_INTERFMODE_NONWLAN:
849 if (phy->rev != 1) {
850 b43_phy_set(dev, 0x042B, 0x0800);
851 b43_phy_mask(dev, B43_PHY_G_CRS, ~0x4000);
852 break;
853 }
854 radio_stacksave(0x0078);
855 tmp = (b43_radio_read16(dev, 0x0078) & 0x001E);
856 B43_WARN_ON(tmp > 15);
857 flipped = bitrev4(tmp);
858 if (flipped < 10 && flipped >= 8)
859 flipped = 7;
860 else if (flipped >= 10)
861 flipped -= 3;
862 flipped = (bitrev4(flipped) << 1) | 0x0020;
863 b43_radio_write16(dev, 0x0078, flipped);
864
865 b43_calc_nrssi_threshold(dev);
866
867 phy_stacksave(0x0406);
868 b43_phy_write(dev, 0x0406, 0x7E28);
869
870 b43_phy_set(dev, 0x042B, 0x0800);
871 b43_phy_set(dev, B43_PHY_RADIO_BITFIELD, 0x1000);
872
873 phy_stacksave(0x04A0);
874 b43_phy_maskset(dev, 0x04A0, 0xC0C0, 0x0008);
875 phy_stacksave(0x04A1);
876 b43_phy_maskset(dev, 0x04A1, 0xC0C0, 0x0605);
877 phy_stacksave(0x04A2);
878 b43_phy_maskset(dev, 0x04A2, 0xC0C0, 0x0204);
879 phy_stacksave(0x04A8);
880 b43_phy_maskset(dev, 0x04A8, 0xC0C0, 0x0803);
881 phy_stacksave(0x04AB);
882 b43_phy_maskset(dev, 0x04AB, 0xC0C0, 0x0605);
883
884 phy_stacksave(0x04A7);
885 b43_phy_write(dev, 0x04A7, 0x0002);
886 phy_stacksave(0x04A3);
887 b43_phy_write(dev, 0x04A3, 0x287A);
888 phy_stacksave(0x04A9);
889 b43_phy_write(dev, 0x04A9, 0x2027);
890 phy_stacksave(0x0493);
891 b43_phy_write(dev, 0x0493, 0x32F5);
892 phy_stacksave(0x04AA);
893 b43_phy_write(dev, 0x04AA, 0x2027);
894 phy_stacksave(0x04AC);
895 b43_phy_write(dev, 0x04AC, 0x32F5);
896 break;
897 case B43_INTERFMODE_MANUALWLAN:
898 if (b43_phy_read(dev, 0x0033) & 0x0800)
899 break;
900
901 gphy->aci_enable = true;
902
903 phy_stacksave(B43_PHY_RADIO_BITFIELD);
904 phy_stacksave(B43_PHY_G_CRS);
905 if (phy->rev < 2) {
906 phy_stacksave(0x0406);
907 } else {
908 phy_stacksave(0x04C0);
909 phy_stacksave(0x04C1);
910 }
911 phy_stacksave(0x0033);
912 phy_stacksave(0x04A7);
913 phy_stacksave(0x04A3);
914 phy_stacksave(0x04A9);
915 phy_stacksave(0x04AA);
916 phy_stacksave(0x04AC);
917 phy_stacksave(0x0493);
918 phy_stacksave(0x04A1);
919 phy_stacksave(0x04A0);
920 phy_stacksave(0x04A2);
921 phy_stacksave(0x048A);
922 phy_stacksave(0x04A8);
923 phy_stacksave(0x04AB);
924 if (phy->rev == 2) {
925 phy_stacksave(0x04AD);
926 phy_stacksave(0x04AE);
927 } else if (phy->rev >= 3) {
928 phy_stacksave(0x04AD);
929 phy_stacksave(0x0415);
930 phy_stacksave(0x0416);
931 phy_stacksave(0x0417);
932 ofdmtab_stacksave(0x1A00, 0x2);
933 ofdmtab_stacksave(0x1A00, 0x3);
934 }
935 phy_stacksave(0x042B);
936 phy_stacksave(0x048C);
937
938 b43_phy_mask(dev, B43_PHY_RADIO_BITFIELD, ~0x1000);
939 b43_phy_maskset(dev, B43_PHY_G_CRS, 0xFFFC, 0x0002);
940
941 b43_phy_write(dev, 0x0033, 0x0800);
942 b43_phy_write(dev, 0x04A3, 0x2027);
943 b43_phy_write(dev, 0x04A9, 0x1CA8);
944 b43_phy_write(dev, 0x0493, 0x287A);
945 b43_phy_write(dev, 0x04AA, 0x1CA8);
946 b43_phy_write(dev, 0x04AC, 0x287A);
947
948 b43_phy_maskset(dev, 0x04A0, 0xFFC0, 0x001A);
949 b43_phy_write(dev, 0x04A7, 0x000D);
950
951 if (phy->rev < 2) {
952 b43_phy_write(dev, 0x0406, 0xFF0D);
953 } else if (phy->rev == 2) {
954 b43_phy_write(dev, 0x04C0, 0xFFFF);
955 b43_phy_write(dev, 0x04C1, 0x00A9);
956 } else {
957 b43_phy_write(dev, 0x04C0, 0x00C1);
958 b43_phy_write(dev, 0x04C1, 0x0059);
959 }
960
961 b43_phy_maskset(dev, 0x04A1, 0xC0FF, 0x1800);
962 b43_phy_maskset(dev, 0x04A1, 0xFFC0, 0x0015);
963 b43_phy_maskset(dev, 0x04A8, 0xCFFF, 0x1000);
964 b43_phy_maskset(dev, 0x04A8, 0xF0FF, 0x0A00);
965 b43_phy_maskset(dev, 0x04AB, 0xCFFF, 0x1000);
966 b43_phy_maskset(dev, 0x04AB, 0xF0FF, 0x0800);
967 b43_phy_maskset(dev, 0x04AB, 0xFFCF, 0x0010);
968 b43_phy_maskset(dev, 0x04AB, 0xFFF0, 0x0005);
969 b43_phy_maskset(dev, 0x04A8, 0xFFCF, 0x0010);
970 b43_phy_maskset(dev, 0x04A8, 0xFFF0, 0x0006);
971 b43_phy_maskset(dev, 0x04A2, 0xF0FF, 0x0800);
972 b43_phy_maskset(dev, 0x04A0, 0xF0FF, 0x0500);
973 b43_phy_maskset(dev, 0x04A2, 0xFFF0, 0x000B);
974
975 if (phy->rev >= 3) {
976 b43_phy_mask(dev, 0x048A, 0x7FFF);
977 b43_phy_maskset(dev, 0x0415, 0x8000, 0x36D8);
978 b43_phy_maskset(dev, 0x0416, 0x8000, 0x36D8);
979 b43_phy_maskset(dev, 0x0417, 0xFE00, 0x016D);
980 } else {
981 b43_phy_set(dev, 0x048A, 0x1000);
982 b43_phy_maskset(dev, 0x048A, 0x9FFF, 0x2000);
983 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_ACIW);
984 }
985 if (phy->rev >= 2) {
986 b43_phy_set(dev, 0x042B, 0x0800);
987 }
988 b43_phy_maskset(dev, 0x048C, 0xF0FF, 0x0200);
989 if (phy->rev == 2) {
990 b43_phy_maskset(dev, 0x04AE, 0xFF00, 0x007F);
991 b43_phy_maskset(dev, 0x04AD, 0x00FF, 0x1300);
992 } else if (phy->rev >= 6) {
993 b43_ofdmtab_write16(dev, 0x1A00, 0x3, 0x007F);
994 b43_ofdmtab_write16(dev, 0x1A00, 0x2, 0x007F);
995 b43_phy_mask(dev, 0x04AD, 0x00FF);
996 }
997 b43_calc_nrssi_slope(dev);
998 break;
999 default:
1000 B43_WARN_ON(1);
1001 }
1002}
1003
1004static void
1005b43_radio_interference_mitigation_disable(struct b43_wldev *dev, int mode)
1006{
1007 struct b43_phy *phy = &dev->phy;
1008 struct b43_phy_g *gphy = phy->g;
1009 u32 *stack = gphy->interfstack;
1010
1011 switch (mode) {
1012 case B43_INTERFMODE_NONWLAN:
1013 if (phy->rev != 1) {
1014 b43_phy_mask(dev, 0x042B, ~0x0800);
1015 b43_phy_set(dev, B43_PHY_G_CRS, 0x4000);
1016 break;
1017 }
1018 radio_stackrestore(0x0078);
1019 b43_calc_nrssi_threshold(dev);
1020 phy_stackrestore(0x0406);
1021 b43_phy_mask(dev, 0x042B, ~0x0800);
1022 if (!dev->bad_frames_preempt) {
1023 b43_phy_mask(dev, B43_PHY_RADIO_BITFIELD, ~(1 << 11));
1024 }
1025 b43_phy_set(dev, B43_PHY_G_CRS, 0x4000);
1026 phy_stackrestore(0x04A0);
1027 phy_stackrestore(0x04A1);
1028 phy_stackrestore(0x04A2);
1029 phy_stackrestore(0x04A8);
1030 phy_stackrestore(0x04AB);
1031 phy_stackrestore(0x04A7);
1032 phy_stackrestore(0x04A3);
1033 phy_stackrestore(0x04A9);
1034 phy_stackrestore(0x0493);
1035 phy_stackrestore(0x04AA);
1036 phy_stackrestore(0x04AC);
1037 break;
1038 case B43_INTERFMODE_MANUALWLAN:
1039 if (!(b43_phy_read(dev, 0x0033) & 0x0800))
1040 break;
1041
1042 gphy->aci_enable = false;
1043
1044 phy_stackrestore(B43_PHY_RADIO_BITFIELD);
1045 phy_stackrestore(B43_PHY_G_CRS);
1046 phy_stackrestore(0x0033);
1047 phy_stackrestore(0x04A3);
1048 phy_stackrestore(0x04A9);
1049 phy_stackrestore(0x0493);
1050 phy_stackrestore(0x04AA);
1051 phy_stackrestore(0x04AC);
1052 phy_stackrestore(0x04A0);
1053 phy_stackrestore(0x04A7);
1054 if (phy->rev >= 2) {
1055 phy_stackrestore(0x04C0);
1056 phy_stackrestore(0x04C1);
1057 } else
1058 phy_stackrestore(0x0406);
1059 phy_stackrestore(0x04A1);
1060 phy_stackrestore(0x04AB);
1061 phy_stackrestore(0x04A8);
1062 if (phy->rev == 2) {
1063 phy_stackrestore(0x04AD);
1064 phy_stackrestore(0x04AE);
1065 } else if (phy->rev >= 3) {
1066 phy_stackrestore(0x04AD);
1067 phy_stackrestore(0x0415);
1068 phy_stackrestore(0x0416);
1069 phy_stackrestore(0x0417);
1070 ofdmtab_stackrestore(0x1A00, 0x2);
1071 ofdmtab_stackrestore(0x1A00, 0x3);
1072 }
1073 phy_stackrestore(0x04A2);
1074 phy_stackrestore(0x048A);
1075 phy_stackrestore(0x042B);
1076 phy_stackrestore(0x048C);
1077 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_ACIW);
1078 b43_calc_nrssi_slope(dev);
1079 break;
1080 default:
1081 B43_WARN_ON(1);
1082 }
1083}
1084
1085#undef phy_stacksave
1086#undef phy_stackrestore
1087#undef radio_stacksave
1088#undef radio_stackrestore
1089#undef ofdmtab_stacksave
1090#undef ofdmtab_stackrestore
1091
1092static u16 b43_radio_core_calibration_value(struct b43_wldev *dev)
1093{
1094 u16 reg, index, ret;
1095
1096 static const u8 rcc_table[] = {
1097 0x02, 0x03, 0x01, 0x0F,
1098 0x06, 0x07, 0x05, 0x0F,
1099 0x0A, 0x0B, 0x09, 0x0F,
1100 0x0E, 0x0F, 0x0D, 0x0F,
1101 };
1102
1103 reg = b43_radio_read16(dev, 0x60);
1104 index = (reg & 0x001E) >> 1;
1105 ret = rcc_table[index] << 1;
1106 ret |= (reg & 0x0001);
1107 ret |= 0x0020;
1108
1109 return ret;
1110}
1111
1112#define LPD(L, P, D) (((L) << 2) | ((P) << 1) | ((D) << 0))
1113static u16 radio2050_rfover_val(struct b43_wldev *dev,
1114 u16 phy_register, unsigned int lpd)
1115{
1116 struct b43_phy *phy = &dev->phy;
1117 struct b43_phy_g *gphy = phy->g;
1118 struct ssb_sprom *sprom = dev->dev->bus_sprom;
1119
1120 if (!phy->gmode)
1121 return 0;
1122
1123 if (has_loopback_gain(phy)) {
1124 int max_lb_gain = gphy->max_lb_gain;
1125 u16 extlna;
1126 u16 i;
1127
1128 if (phy->radio_rev == 8)
1129 max_lb_gain += 0x3E;
1130 else
1131 max_lb_gain += 0x26;
1132 if (max_lb_gain >= 0x46) {
1133 extlna = 0x3000;
1134 max_lb_gain -= 0x46;
1135 } else if (max_lb_gain >= 0x3A) {
1136 extlna = 0x1000;
1137 max_lb_gain -= 0x3A;
1138 } else if (max_lb_gain >= 0x2E) {
1139 extlna = 0x2000;
1140 max_lb_gain -= 0x2E;
1141 } else {
1142 extlna = 0;
1143 max_lb_gain -= 0x10;
1144 }
1145
1146 for (i = 0; i < 16; i++) {
1147 max_lb_gain -= (i * 6);
1148 if (max_lb_gain < 6)
1149 break;
1150 }
1151
1152 if ((phy->rev < 7) ||
1153 !(sprom->boardflags_lo & B43_BFL_EXTLNA)) {
1154 if (phy_register == B43_PHY_RFOVER) {
1155 return 0x1B3;
1156 } else if (phy_register == B43_PHY_RFOVERVAL) {
1157 extlna |= (i << 8);
1158 switch (lpd) {
1159 case LPD(0, 1, 1):
1160 return 0x0F92;
1161 case LPD(0, 0, 1):
1162 case LPD(1, 0, 1):
1163 return (0x0092 | extlna);
1164 case LPD(1, 0, 0):
1165 return (0x0093 | extlna);
1166 }
1167 B43_WARN_ON(1);
1168 }
1169 B43_WARN_ON(1);
1170 } else {
1171 if (phy_register == B43_PHY_RFOVER) {
1172 return 0x9B3;
1173 } else if (phy_register == B43_PHY_RFOVERVAL) {
1174 if (extlna)
1175 extlna |= 0x8000;
1176 extlna |= (i << 8);
1177 switch (lpd) {
1178 case LPD(0, 1, 1):
1179 return 0x8F92;
1180 case LPD(0, 0, 1):
1181 return (0x8092 | extlna);
1182 case LPD(1, 0, 1):
1183 return (0x2092 | extlna);
1184 case LPD(1, 0, 0):
1185 return (0x2093 | extlna);
1186 }
1187 B43_WARN_ON(1);
1188 }
1189 B43_WARN_ON(1);
1190 }
1191 } else {
1192 if ((phy->rev < 7) ||
1193 !(sprom->boardflags_lo & B43_BFL_EXTLNA)) {
1194 if (phy_register == B43_PHY_RFOVER) {
1195 return 0x1B3;
1196 } else if (phy_register == B43_PHY_RFOVERVAL) {
1197 switch (lpd) {
1198 case LPD(0, 1, 1):
1199 return 0x0FB2;
1200 case LPD(0, 0, 1):
1201 return 0x00B2;
1202 case LPD(1, 0, 1):
1203 return 0x30B2;
1204 case LPD(1, 0, 0):
1205 return 0x30B3;
1206 }
1207 B43_WARN_ON(1);
1208 }
1209 B43_WARN_ON(1);
1210 } else {
1211 if (phy_register == B43_PHY_RFOVER) {
1212 return 0x9B3;
1213 } else if (phy_register == B43_PHY_RFOVERVAL) {
1214 switch (lpd) {
1215 case LPD(0, 1, 1):
1216 return 0x8FB2;
1217 case LPD(0, 0, 1):
1218 return 0x80B2;
1219 case LPD(1, 0, 1):
1220 return 0x20B2;
1221 case LPD(1, 0, 0):
1222 return 0x20B3;
1223 }
1224 B43_WARN_ON(1);
1225 }
1226 B43_WARN_ON(1);
1227 }
1228 }
1229 return 0;
1230}
1231
1232struct init2050_saved_values {
1233 /* Core registers */
1234 u16 reg_3EC;
1235 u16 reg_3E6;
1236 u16 reg_3F4;
1237 /* Radio registers */
1238 u16 radio_43;
1239 u16 radio_51;
1240 u16 radio_52;
1241 /* PHY registers */
1242 u16 phy_pgactl;
1243 u16 phy_cck_5A;
1244 u16 phy_cck_59;
1245 u16 phy_cck_58;
1246 u16 phy_cck_30;
1247 u16 phy_rfover;
1248 u16 phy_rfoverval;
1249 u16 phy_analogover;
1250 u16 phy_analogoverval;
1251 u16 phy_crs0;
1252 u16 phy_classctl;
1253 u16 phy_lo_mask;
1254 u16 phy_lo_ctl;
1255 u16 phy_syncctl;
1256};
1257
1258static u16 b43_radio_init2050(struct b43_wldev *dev)
1259{
1260 struct b43_phy *phy = &dev->phy;
1261 struct init2050_saved_values sav;
1262 u16 rcc;
1263 u16 radio78;
1264 u16 ret;
1265 u16 i, j;
1266 u32 tmp1 = 0, tmp2 = 0;
1267
1268 memset(&sav, 0, sizeof(sav)); /* get rid of "may be used uninitialized..." */
1269
1270 sav.radio_43 = b43_radio_read16(dev, 0x43);
1271 sav.radio_51 = b43_radio_read16(dev, 0x51);
1272 sav.radio_52 = b43_radio_read16(dev, 0x52);
1273 sav.phy_pgactl = b43_phy_read(dev, B43_PHY_PGACTL);
1274 sav.phy_cck_5A = b43_phy_read(dev, B43_PHY_CCK(0x5A));
1275 sav.phy_cck_59 = b43_phy_read(dev, B43_PHY_CCK(0x59));
1276 sav.phy_cck_58 = b43_phy_read(dev, B43_PHY_CCK(0x58));
1277
1278 if (phy->type == B43_PHYTYPE_B) {
1279 sav.phy_cck_30 = b43_phy_read(dev, B43_PHY_CCK(0x30));
1280 sav.reg_3EC = b43_read16(dev, 0x3EC);
1281
1282 b43_phy_write(dev, B43_PHY_CCK(0x30), 0xFF);
1283 b43_write16(dev, 0x3EC, 0x3F3F);
1284 } else if (phy->gmode || phy->rev >= 2) {
1285 sav.phy_rfover = b43_phy_read(dev, B43_PHY_RFOVER);
1286 sav.phy_rfoverval = b43_phy_read(dev, B43_PHY_RFOVERVAL);
1287 sav.phy_analogover = b43_phy_read(dev, B43_PHY_ANALOGOVER);
1288 sav.phy_analogoverval =
1289 b43_phy_read(dev, B43_PHY_ANALOGOVERVAL);
1290 sav.phy_crs0 = b43_phy_read(dev, B43_PHY_CRS0);
1291 sav.phy_classctl = b43_phy_read(dev, B43_PHY_CLASSCTL);
1292
1293 b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0003);
1294 b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFC);
1295 b43_phy_mask(dev, B43_PHY_CRS0, 0x7FFF);
1296 b43_phy_mask(dev, B43_PHY_CLASSCTL, 0xFFFC);
1297 if (has_loopback_gain(phy)) {
1298 sav.phy_lo_mask = b43_phy_read(dev, B43_PHY_LO_MASK);
1299 sav.phy_lo_ctl = b43_phy_read(dev, B43_PHY_LO_CTL);
1300
1301 if (phy->rev >= 3)
1302 b43_phy_write(dev, B43_PHY_LO_MASK, 0xC020);
1303 else
1304 b43_phy_write(dev, B43_PHY_LO_MASK, 0x8020);
1305 b43_phy_write(dev, B43_PHY_LO_CTL, 0);
1306 }
1307
1308 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1309 radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
1310 LPD(0, 1, 1)));
1311 b43_phy_write(dev, B43_PHY_RFOVER,
1312 radio2050_rfover_val(dev, B43_PHY_RFOVER, 0));
1313 }
1314 b43_write16(dev, 0x3E2, b43_read16(dev, 0x3E2) | 0x8000);
1315
1316 sav.phy_syncctl = b43_phy_read(dev, B43_PHY_SYNCCTL);
1317 b43_phy_mask(dev, B43_PHY_SYNCCTL, 0xFF7F);
1318 sav.reg_3E6 = b43_read16(dev, 0x3E6);
1319 sav.reg_3F4 = b43_read16(dev, 0x3F4);
1320
1321 if (phy->analog == 0) {
1322 b43_write16(dev, 0x03E6, 0x0122);
1323 } else {
1324 if (phy->analog >= 2) {
1325 b43_phy_maskset(dev, B43_PHY_CCK(0x03), 0xFFBF, 0x40);
1326 }
1327 b43_write16(dev, B43_MMIO_CHANNEL_EXT,
1328 (b43_read16(dev, B43_MMIO_CHANNEL_EXT) | 0x2000));
1329 }
1330
1331 rcc = b43_radio_core_calibration_value(dev);
1332
1333 if (phy->type == B43_PHYTYPE_B)
1334 b43_radio_write16(dev, 0x78, 0x26);
1335 if (phy->gmode || phy->rev >= 2) {
1336 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1337 radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
1338 LPD(0, 1, 1)));
1339 }
1340 b43_phy_write(dev, B43_PHY_PGACTL, 0xBFAF);
1341 b43_phy_write(dev, B43_PHY_CCK(0x2B), 0x1403);
1342 if (phy->gmode || phy->rev >= 2) {
1343 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1344 radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
1345 LPD(0, 0, 1)));
1346 }
1347 b43_phy_write(dev, B43_PHY_PGACTL, 0xBFA0);
1348 b43_radio_set(dev, 0x51, 0x0004);
1349 if (phy->radio_rev == 8) {
1350 b43_radio_write16(dev, 0x43, 0x1F);
1351 } else {
1352 b43_radio_write16(dev, 0x52, 0);
1353 b43_radio_maskset(dev, 0x43, 0xFFF0, 0x0009);
1354 }
1355 b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
1356
1357 for (i = 0; i < 16; i++) {
1358 b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0480);
1359 b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
1360 b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
1361 if (phy->gmode || phy->rev >= 2) {
1362 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1363 radio2050_rfover_val(dev,
1364 B43_PHY_RFOVERVAL,
1365 LPD(1, 0, 1)));
1366 }
1367 b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
1368 udelay(10);
1369 if (phy->gmode || phy->rev >= 2) {
1370 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1371 radio2050_rfover_val(dev,
1372 B43_PHY_RFOVERVAL,
1373 LPD(1, 0, 1)));
1374 }
1375 b43_phy_write(dev, B43_PHY_PGACTL, 0xEFB0);
1376 udelay(10);
1377 if (phy->gmode || phy->rev >= 2) {
1378 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1379 radio2050_rfover_val(dev,
1380 B43_PHY_RFOVERVAL,
1381 LPD(1, 0, 0)));
1382 }
1383 b43_phy_write(dev, B43_PHY_PGACTL, 0xFFF0);
1384 udelay(20);
1385 tmp1 += b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
1386 b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
1387 if (phy->gmode || phy->rev >= 2) {
1388 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1389 radio2050_rfover_val(dev,
1390 B43_PHY_RFOVERVAL,
1391 LPD(1, 0, 1)));
1392 }
1393 b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
1394 }
1395 udelay(10);
1396
1397 b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
1398 tmp1++;
1399 tmp1 >>= 9;
1400
1401 for (i = 0; i < 16; i++) {
1402 radio78 = (bitrev4(i) << 1) | 0x0020;
1403 b43_radio_write16(dev, 0x78, radio78);
1404 udelay(10);
1405 for (j = 0; j < 16; j++) {
1406 b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0D80);
1407 b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
1408 b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
1409 if (phy->gmode || phy->rev >= 2) {
1410 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1411 radio2050_rfover_val(dev,
1412 B43_PHY_RFOVERVAL,
1413 LPD(1, 0,
1414 1)));
1415 }
1416 b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
1417 udelay(10);
1418 if (phy->gmode || phy->rev >= 2) {
1419 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1420 radio2050_rfover_val(dev,
1421 B43_PHY_RFOVERVAL,
1422 LPD(1, 0,
1423 1)));
1424 }
1425 b43_phy_write(dev, B43_PHY_PGACTL, 0xEFB0);
1426 udelay(10);
1427 if (phy->gmode || phy->rev >= 2) {
1428 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1429 radio2050_rfover_val(dev,
1430 B43_PHY_RFOVERVAL,
1431 LPD(1, 0,
1432 0)));
1433 }
1434 b43_phy_write(dev, B43_PHY_PGACTL, 0xFFF0);
1435 udelay(10);
1436 tmp2 += b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
1437 b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
1438 if (phy->gmode || phy->rev >= 2) {
1439 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1440 radio2050_rfover_val(dev,
1441 B43_PHY_RFOVERVAL,
1442 LPD(1, 0,
1443 1)));
1444 }
1445 b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
1446 }
1447 tmp2++;
1448 tmp2 >>= 8;
1449 if (tmp1 < tmp2)
1450 break;
1451 }
1452
1453 /* Restore the registers */
1454 b43_phy_write(dev, B43_PHY_PGACTL, sav.phy_pgactl);
1455 b43_radio_write16(dev, 0x51, sav.radio_51);
1456 b43_radio_write16(dev, 0x52, sav.radio_52);
1457 b43_radio_write16(dev, 0x43, sav.radio_43);
1458 b43_phy_write(dev, B43_PHY_CCK(0x5A), sav.phy_cck_5A);
1459 b43_phy_write(dev, B43_PHY_CCK(0x59), sav.phy_cck_59);
1460 b43_phy_write(dev, B43_PHY_CCK(0x58), sav.phy_cck_58);
1461 b43_write16(dev, 0x3E6, sav.reg_3E6);
1462 if (phy->analog != 0)
1463 b43_write16(dev, 0x3F4, sav.reg_3F4);
1464 b43_phy_write(dev, B43_PHY_SYNCCTL, sav.phy_syncctl);
1465 b43_synth_pu_workaround(dev, phy->channel);
1466 if (phy->type == B43_PHYTYPE_B) {
1467 b43_phy_write(dev, B43_PHY_CCK(0x30), sav.phy_cck_30);
1468 b43_write16(dev, 0x3EC, sav.reg_3EC);
1469 } else if (phy->gmode) {
1470 b43_write16(dev, B43_MMIO_PHY_RADIO,
1471 b43_read16(dev, B43_MMIO_PHY_RADIO)
1472 & 0x7FFF);
1473 b43_phy_write(dev, B43_PHY_RFOVER, sav.phy_rfover);
1474 b43_phy_write(dev, B43_PHY_RFOVERVAL, sav.phy_rfoverval);
1475 b43_phy_write(dev, B43_PHY_ANALOGOVER, sav.phy_analogover);
1476 b43_phy_write(dev, B43_PHY_ANALOGOVERVAL,
1477 sav.phy_analogoverval);
1478 b43_phy_write(dev, B43_PHY_CRS0, sav.phy_crs0);
1479 b43_phy_write(dev, B43_PHY_CLASSCTL, sav.phy_classctl);
1480 if (has_loopback_gain(phy)) {
1481 b43_phy_write(dev, B43_PHY_LO_MASK, sav.phy_lo_mask);
1482 b43_phy_write(dev, B43_PHY_LO_CTL, sav.phy_lo_ctl);
1483 }
1484 }
1485 if (i > 15)
1486 ret = radio78;
1487 else
1488 ret = rcc;
1489
1490 return ret;
1491}
1492
1493static void b43_phy_initb5(struct b43_wldev *dev)
1494{
1495 struct b43_phy *phy = &dev->phy;
1496 struct b43_phy_g *gphy = phy->g;
1497 u16 offset, value;
1498 u8 old_channel;
1499
1500 if (phy->analog == 1) {
1501 b43_radio_set(dev, 0x007A, 0x0050);
1502 }
1503 if ((dev->dev->board_vendor != SSB_BOARDVENDOR_BCM) &&
1504 (dev->dev->board_type != SSB_BOARD_BU4306)) {
1505 value = 0x2120;
1506 for (offset = 0x00A8; offset < 0x00C7; offset++) {
1507 b43_phy_write(dev, offset, value);
1508 value += 0x202;
1509 }
1510 }
1511 b43_phy_maskset(dev, 0x0035, 0xF0FF, 0x0700);
1512 if (phy->radio_ver == 0x2050)
1513 b43_phy_write(dev, 0x0038, 0x0667);
1514
1515 if (phy->gmode || phy->rev >= 2) {
1516 if (phy->radio_ver == 0x2050) {
1517 b43_radio_set(dev, 0x007A, 0x0020);
1518 b43_radio_set(dev, 0x0051, 0x0004);
1519 }
1520 b43_write16(dev, B43_MMIO_PHY_RADIO, 0x0000);
1521
1522 b43_phy_set(dev, 0x0802, 0x0100);
1523 b43_phy_set(dev, 0x042B, 0x2000);
1524
1525 b43_phy_write(dev, 0x001C, 0x186A);
1526
1527 b43_phy_maskset(dev, 0x0013, 0x00FF, 0x1900);
1528 b43_phy_maskset(dev, 0x0035, 0xFFC0, 0x0064);
1529 b43_phy_maskset(dev, 0x005D, 0xFF80, 0x000A);
1530 }
1531
1532 if (dev->bad_frames_preempt) {
1533 b43_phy_set(dev, B43_PHY_RADIO_BITFIELD, (1 << 11));
1534 }
1535
1536 if (phy->analog == 1) {
1537 b43_phy_write(dev, 0x0026, 0xCE00);
1538 b43_phy_write(dev, 0x0021, 0x3763);
1539 b43_phy_write(dev, 0x0022, 0x1BC3);
1540 b43_phy_write(dev, 0x0023, 0x06F9);
1541 b43_phy_write(dev, 0x0024, 0x037E);
1542 } else
1543 b43_phy_write(dev, 0x0026, 0xCC00);
1544 b43_phy_write(dev, 0x0030, 0x00C6);
1545 b43_write16(dev, 0x03EC, 0x3F22);
1546
1547 if (phy->analog == 1)
1548 b43_phy_write(dev, 0x0020, 0x3E1C);
1549 else
1550 b43_phy_write(dev, 0x0020, 0x301C);
1551
1552 if (phy->analog == 0)
1553 b43_write16(dev, 0x03E4, 0x3000);
1554
1555 old_channel = phy->channel;
1556 /* Force to channel 7, even if not supported. */
1557 b43_gphy_channel_switch(dev, 7, 0);
1558
1559 if (phy->radio_ver != 0x2050) {
1560 b43_radio_write16(dev, 0x0075, 0x0080);
1561 b43_radio_write16(dev, 0x0079, 0x0081);
1562 }
1563
1564 b43_radio_write16(dev, 0x0050, 0x0020);
1565 b43_radio_write16(dev, 0x0050, 0x0023);
1566
1567 if (phy->radio_ver == 0x2050) {
1568 b43_radio_write16(dev, 0x0050, 0x0020);
1569 b43_radio_write16(dev, 0x005A, 0x0070);
1570 }
1571
1572 b43_radio_write16(dev, 0x005B, 0x007B);
1573 b43_radio_write16(dev, 0x005C, 0x00B0);
1574
1575 b43_radio_set(dev, 0x007A, 0x0007);
1576
1577 b43_gphy_channel_switch(dev, old_channel, 0);
1578
1579 b43_phy_write(dev, 0x0014, 0x0080);
1580 b43_phy_write(dev, 0x0032, 0x00CA);
1581 b43_phy_write(dev, 0x002A, 0x88A3);
1582
1583 b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt, gphy->tx_control);
1584
1585 if (phy->radio_ver == 0x2050)
1586 b43_radio_write16(dev, 0x005D, 0x000D);
1587
1588 b43_write16(dev, 0x03E4, (b43_read16(dev, 0x03E4) & 0xFFC0) | 0x0004);
1589}
1590
1591/* http://bcm-v4.sipsolutions.net/802.11/PHY/Init/B6 */
1592static void b43_phy_initb6(struct b43_wldev *dev)
1593{
1594 struct b43_phy *phy = &dev->phy;
1595 struct b43_phy_g *gphy = phy->g;
1596 u16 offset, val;
1597 u8 old_channel;
1598
1599 b43_phy_write(dev, 0x003E, 0x817A);
1600 b43_radio_write16(dev, 0x007A,
1601 (b43_radio_read16(dev, 0x007A) | 0x0058));
1602 if (phy->radio_rev == 4 || phy->radio_rev == 5) {
1603 b43_radio_write16(dev, 0x51, 0x37);
1604 b43_radio_write16(dev, 0x52, 0x70);
1605 b43_radio_write16(dev, 0x53, 0xB3);
1606 b43_radio_write16(dev, 0x54, 0x9B);
1607 b43_radio_write16(dev, 0x5A, 0x88);
1608 b43_radio_write16(dev, 0x5B, 0x88);
1609 b43_radio_write16(dev, 0x5D, 0x88);
1610 b43_radio_write16(dev, 0x5E, 0x88);
1611 b43_radio_write16(dev, 0x7D, 0x88);
1612 b43_hf_write(dev, b43_hf_read(dev)
1613 | B43_HF_TSSIRPSMW);
1614 }
1615 B43_WARN_ON(phy->radio_rev == 6 || phy->radio_rev == 7); /* We had code for these revs here... */
1616 if (phy->radio_rev == 8) {
1617 b43_radio_write16(dev, 0x51, 0);
1618 b43_radio_write16(dev, 0x52, 0x40);
1619 b43_radio_write16(dev, 0x53, 0xB7);
1620 b43_radio_write16(dev, 0x54, 0x98);
1621 b43_radio_write16(dev, 0x5A, 0x88);
1622 b43_radio_write16(dev, 0x5B, 0x6B);
1623 b43_radio_write16(dev, 0x5C, 0x0F);
1624 if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_ALTIQ) {
1625 b43_radio_write16(dev, 0x5D, 0xFA);
1626 b43_radio_write16(dev, 0x5E, 0xD8);
1627 } else {
1628 b43_radio_write16(dev, 0x5D, 0xF5);
1629 b43_radio_write16(dev, 0x5E, 0xB8);
1630 }
1631 b43_radio_write16(dev, 0x0073, 0x0003);
1632 b43_radio_write16(dev, 0x007D, 0x00A8);
1633 b43_radio_write16(dev, 0x007C, 0x0001);
1634 b43_radio_write16(dev, 0x007E, 0x0008);
1635 }
1636 val = 0x1E1F;
1637 for (offset = 0x0088; offset < 0x0098; offset++) {
1638 b43_phy_write(dev, offset, val);
1639 val -= 0x0202;
1640 }
1641 val = 0x3E3F;
1642 for (offset = 0x0098; offset < 0x00A8; offset++) {
1643 b43_phy_write(dev, offset, val);
1644 val -= 0x0202;
1645 }
1646 val = 0x2120;
1647 for (offset = 0x00A8; offset < 0x00C8; offset++) {
1648 b43_phy_write(dev, offset, (val & 0x3F3F));
1649 val += 0x0202;
1650 }
1651 if (phy->type == B43_PHYTYPE_G) {
1652 b43_radio_set(dev, 0x007A, 0x0020);
1653 b43_radio_set(dev, 0x0051, 0x0004);
1654 b43_phy_set(dev, 0x0802, 0x0100);
1655 b43_phy_set(dev, 0x042B, 0x2000);
1656 b43_phy_write(dev, 0x5B, 0);
1657 b43_phy_write(dev, 0x5C, 0);
1658 }
1659
1660 old_channel = phy->channel;
1661 if (old_channel >= 8)
1662 b43_gphy_channel_switch(dev, 1, 0);
1663 else
1664 b43_gphy_channel_switch(dev, 13, 0);
1665
1666 b43_radio_write16(dev, 0x0050, 0x0020);
1667 b43_radio_write16(dev, 0x0050, 0x0023);
1668 udelay(40);
1669 if (phy->radio_rev < 6 || phy->radio_rev == 8) {
1670 b43_radio_write16(dev, 0x7C, (b43_radio_read16(dev, 0x7C)
1671 | 0x0002));
1672 b43_radio_write16(dev, 0x50, 0x20);
1673 }
1674 if (phy->radio_rev <= 2) {
1675 b43_radio_write16(dev, 0x50, 0x20);
1676 b43_radio_write16(dev, 0x5A, 0x70);
1677 b43_radio_write16(dev, 0x5B, 0x7B);
1678 b43_radio_write16(dev, 0x5C, 0xB0);
1679 }
1680 b43_radio_maskset(dev, 0x007A, 0x00F8, 0x0007);
1681
1682 b43_gphy_channel_switch(dev, old_channel, 0);
1683
1684 b43_phy_write(dev, 0x0014, 0x0200);
1685 if (phy->radio_rev >= 6)
1686 b43_phy_write(dev, 0x2A, 0x88C2);
1687 else
1688 b43_phy_write(dev, 0x2A, 0x8AC0);
1689 b43_phy_write(dev, 0x0038, 0x0668);
1690 b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt, gphy->tx_control);
1691 if (phy->radio_rev == 4 || phy->radio_rev == 5)
1692 b43_phy_maskset(dev, 0x5D, 0xFF80, 0x0003);
1693 if (phy->radio_rev <= 2)
1694 b43_radio_write16(dev, 0x005D, 0x000D);
1695
1696 if (phy->analog == 4) {
1697 b43_write16(dev, 0x3E4, 9);
1698 b43_phy_mask(dev, 0x61, 0x0FFF);
1699 } else {
1700 b43_phy_maskset(dev, 0x0002, 0xFFC0, 0x0004);
1701 }
1702 if (phy->type == B43_PHYTYPE_B)
1703 B43_WARN_ON(1);
1704 else if (phy->type == B43_PHYTYPE_G)
1705 b43_write16(dev, 0x03E6, 0x0);
1706}
1707
1708static void b43_calc_loopback_gain(struct b43_wldev *dev)
1709{
1710 struct b43_phy *phy = &dev->phy;
1711 struct b43_phy_g *gphy = phy->g;
1712 u16 backup_phy[16] = { 0 };
1713 u16 backup_radio[3];
1714 u16 backup_bband;
1715 u16 i, j, loop_i_max;
1716 u16 trsw_rx;
1717 u16 loop1_outer_done, loop1_inner_done;
1718
1719 backup_phy[0] = b43_phy_read(dev, B43_PHY_CRS0);
1720 backup_phy[1] = b43_phy_read(dev, B43_PHY_CCKBBANDCFG);
1721 backup_phy[2] = b43_phy_read(dev, B43_PHY_RFOVER);
1722 backup_phy[3] = b43_phy_read(dev, B43_PHY_RFOVERVAL);
1723 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
1724 backup_phy[4] = b43_phy_read(dev, B43_PHY_ANALOGOVER);
1725 backup_phy[5] = b43_phy_read(dev, B43_PHY_ANALOGOVERVAL);
1726 }
1727 backup_phy[6] = b43_phy_read(dev, B43_PHY_CCK(0x5A));
1728 backup_phy[7] = b43_phy_read(dev, B43_PHY_CCK(0x59));
1729 backup_phy[8] = b43_phy_read(dev, B43_PHY_CCK(0x58));
1730 backup_phy[9] = b43_phy_read(dev, B43_PHY_CCK(0x0A));
1731 backup_phy[10] = b43_phy_read(dev, B43_PHY_CCK(0x03));
1732 backup_phy[11] = b43_phy_read(dev, B43_PHY_LO_MASK);
1733 backup_phy[12] = b43_phy_read(dev, B43_PHY_LO_CTL);
1734 backup_phy[13] = b43_phy_read(dev, B43_PHY_CCK(0x2B));
1735 backup_phy[14] = b43_phy_read(dev, B43_PHY_PGACTL);
1736 backup_phy[15] = b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
1737 backup_bband = gphy->bbatt.att;
1738 backup_radio[0] = b43_radio_read16(dev, 0x52);
1739 backup_radio[1] = b43_radio_read16(dev, 0x43);
1740 backup_radio[2] = b43_radio_read16(dev, 0x7A);
1741
1742 b43_phy_mask(dev, B43_PHY_CRS0, 0x3FFF);
1743 b43_phy_set(dev, B43_PHY_CCKBBANDCFG, 0x8000);
1744 b43_phy_set(dev, B43_PHY_RFOVER, 0x0002);
1745 b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xFFFD);
1746 b43_phy_set(dev, B43_PHY_RFOVER, 0x0001);
1747 b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xFFFE);
1748 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
1749 b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0001);
1750 b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFE);
1751 b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0002);
1752 b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFD);
1753 }
1754 b43_phy_set(dev, B43_PHY_RFOVER, 0x000C);
1755 b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x000C);
1756 b43_phy_set(dev, B43_PHY_RFOVER, 0x0030);
1757 b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xFFCF, 0x10);
1758
1759 b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0780);
1760 b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
1761 b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
1762
1763 b43_phy_set(dev, B43_PHY_CCK(0x0A), 0x2000);
1764 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
1765 b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0004);
1766 b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFB);
1767 }
1768 b43_phy_maskset(dev, B43_PHY_CCK(0x03), 0xFF9F, 0x40);
1769
1770 if (phy->radio_rev == 8) {
1771 b43_radio_write16(dev, 0x43, 0x000F);
1772 } else {
1773 b43_radio_write16(dev, 0x52, 0);
1774 b43_radio_maskset(dev, 0x43, 0xFFF0, 0x9);
1775 }
1776 b43_gphy_set_baseband_attenuation(dev, 11);
1777
1778 if (phy->rev >= 3)
1779 b43_phy_write(dev, B43_PHY_LO_MASK, 0xC020);
1780 else
1781 b43_phy_write(dev, B43_PHY_LO_MASK, 0x8020);
1782 b43_phy_write(dev, B43_PHY_LO_CTL, 0);
1783
1784 b43_phy_maskset(dev, B43_PHY_CCK(0x2B), 0xFFC0, 0x01);
1785 b43_phy_maskset(dev, B43_PHY_CCK(0x2B), 0xC0FF, 0x800);
1786
1787 b43_phy_set(dev, B43_PHY_RFOVER, 0x0100);
1788 b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xCFFF);
1789
1790 if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_EXTLNA) {
1791 if (phy->rev >= 7) {
1792 b43_phy_set(dev, B43_PHY_RFOVER, 0x0800);
1793 b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x8000);
1794 }
1795 }
1796 b43_radio_mask(dev, 0x7A, 0x00F7);
1797
1798 j = 0;
1799 loop_i_max = (phy->radio_rev == 8) ? 15 : 9;
1800 for (i = 0; i < loop_i_max; i++) {
1801 for (j = 0; j < 16; j++) {
1802 b43_radio_write16(dev, 0x43, i);
1803 b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xF0FF, (j << 8));
1804 b43_phy_maskset(dev, B43_PHY_PGACTL, 0x0FFF, 0xA000);
1805 b43_phy_set(dev, B43_PHY_PGACTL, 0xF000);
1806 udelay(20);
1807 if (b43_phy_read(dev, B43_PHY_LO_LEAKAGE) >= 0xDFC)
1808 goto exit_loop1;
1809 }
1810 }
1811 exit_loop1:
1812 loop1_outer_done = i;
1813 loop1_inner_done = j;
1814 if (j >= 8) {
1815 b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x30);
1816 trsw_rx = 0x1B;
1817 for (j = j - 8; j < 16; j++) {
1818 b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xF0FF, (j << 8));
1819 b43_phy_maskset(dev, B43_PHY_PGACTL, 0x0FFF, 0xA000);
1820 b43_phy_set(dev, B43_PHY_PGACTL, 0xF000);
1821 udelay(20);
1822 trsw_rx -= 3;
1823 if (b43_phy_read(dev, B43_PHY_LO_LEAKAGE) >= 0xDFC)
1824 goto exit_loop2;
1825 }
1826 } else
1827 trsw_rx = 0x18;
1828 exit_loop2:
1829
1830 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
1831 b43_phy_write(dev, B43_PHY_ANALOGOVER, backup_phy[4]);
1832 b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, backup_phy[5]);
1833 }
1834 b43_phy_write(dev, B43_PHY_CCK(0x5A), backup_phy[6]);
1835 b43_phy_write(dev, B43_PHY_CCK(0x59), backup_phy[7]);
1836 b43_phy_write(dev, B43_PHY_CCK(0x58), backup_phy[8]);
1837 b43_phy_write(dev, B43_PHY_CCK(0x0A), backup_phy[9]);
1838 b43_phy_write(dev, B43_PHY_CCK(0x03), backup_phy[10]);
1839 b43_phy_write(dev, B43_PHY_LO_MASK, backup_phy[11]);
1840 b43_phy_write(dev, B43_PHY_LO_CTL, backup_phy[12]);
1841 b43_phy_write(dev, B43_PHY_CCK(0x2B), backup_phy[13]);
1842 b43_phy_write(dev, B43_PHY_PGACTL, backup_phy[14]);
1843
1844 b43_gphy_set_baseband_attenuation(dev, backup_bband);
1845
1846 b43_radio_write16(dev, 0x52, backup_radio[0]);
1847 b43_radio_write16(dev, 0x43, backup_radio[1]);
1848 b43_radio_write16(dev, 0x7A, backup_radio[2]);
1849
1850 b43_phy_write(dev, B43_PHY_RFOVER, backup_phy[2] | 0x0003);
1851 udelay(10);
1852 b43_phy_write(dev, B43_PHY_RFOVER, backup_phy[2]);
1853 b43_phy_write(dev, B43_PHY_RFOVERVAL, backup_phy[3]);
1854 b43_phy_write(dev, B43_PHY_CRS0, backup_phy[0]);
1855 b43_phy_write(dev, B43_PHY_CCKBBANDCFG, backup_phy[1]);
1856
1857 gphy->max_lb_gain =
1858 ((loop1_inner_done * 6) - (loop1_outer_done * 4)) - 11;
1859 gphy->trsw_rx_gain = trsw_rx * 2;
1860}
1861
1862static void b43_hardware_pctl_early_init(struct b43_wldev *dev)
1863{
1864 struct b43_phy *phy = &dev->phy;
1865
1866 if (!b43_has_hardware_pctl(dev)) {
1867 b43_phy_write(dev, 0x047A, 0xC111);
1868 return;
1869 }
1870
1871 b43_phy_mask(dev, 0x0036, 0xFEFF);
1872 b43_phy_write(dev, 0x002F, 0x0202);
1873 b43_phy_set(dev, 0x047C, 0x0002);
1874 b43_phy_set(dev, 0x047A, 0xF000);
1875 if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
1876 b43_phy_maskset(dev, 0x047A, 0xFF0F, 0x0010);
1877 b43_phy_set(dev, 0x005D, 0x8000);
1878 b43_phy_maskset(dev, 0x004E, 0xFFC0, 0x0010);
1879 b43_phy_write(dev, 0x002E, 0xC07F);
1880 b43_phy_set(dev, 0x0036, 0x0400);
1881 } else {
1882 b43_phy_set(dev, 0x0036, 0x0200);
1883 b43_phy_set(dev, 0x0036, 0x0400);
1884 b43_phy_mask(dev, 0x005D, 0x7FFF);
1885 b43_phy_mask(dev, 0x004F, 0xFFFE);
1886 b43_phy_maskset(dev, 0x004E, 0xFFC0, 0x0010);
1887 b43_phy_write(dev, 0x002E, 0xC07F);
1888 b43_phy_maskset(dev, 0x047A, 0xFF0F, 0x0010);
1889 }
1890}
1891
1892/* Hardware power control for G-PHY */
1893static void b43_hardware_pctl_init_gphy(struct b43_wldev *dev)
1894{
1895 struct b43_phy *phy = &dev->phy;
1896 struct b43_phy_g *gphy = phy->g;
1897
1898 if (!b43_has_hardware_pctl(dev)) {
1899 /* No hardware power control */
1900 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_HWPCTL);
1901 return;
1902 }
1903
1904 b43_phy_maskset(dev, 0x0036, 0xFFC0, (gphy->tgt_idle_tssi - gphy->cur_idle_tssi));
1905 b43_phy_maskset(dev, 0x0478, 0xFF00, (gphy->tgt_idle_tssi - gphy->cur_idle_tssi));
1906 b43_gphy_tssi_power_lt_init(dev);
1907 b43_gphy_gain_lt_init(dev);
1908 b43_phy_mask(dev, 0x0060, 0xFFBF);
1909 b43_phy_write(dev, 0x0014, 0x0000);
1910
1911 B43_WARN_ON(phy->rev < 6);
1912 b43_phy_set(dev, 0x0478, 0x0800);
1913 b43_phy_mask(dev, 0x0478, 0xFEFF);
1914 b43_phy_mask(dev, 0x0801, 0xFFBF);
1915
1916 b43_gphy_dc_lt_init(dev, 1);
1917
1918 /* Enable hardware pctl in firmware. */
1919 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_HWPCTL);
1920}
1921
1922/* Initialize B/G PHY power control */
1923static void b43_phy_init_pctl(struct b43_wldev *dev)
1924{
1925 struct b43_phy *phy = &dev->phy;
1926 struct b43_phy_g *gphy = phy->g;
1927 struct b43_rfatt old_rfatt;
1928 struct b43_bbatt old_bbatt;
1929 u8 old_tx_control = 0;
1930
1931 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
1932
1933 if ((dev->dev->board_vendor == SSB_BOARDVENDOR_BCM) &&
1934 (dev->dev->board_type == SSB_BOARD_BU4306))
1935 return;
1936
1937 b43_phy_write(dev, 0x0028, 0x8018);
1938
1939 /* This does something with the Analog... */
1940 b43_write16(dev, B43_MMIO_PHY0, b43_read16(dev, B43_MMIO_PHY0)
1941 & 0xFFDF);
1942
1943 if (!phy->gmode)
1944 return;
1945 b43_hardware_pctl_early_init(dev);
1946 if (gphy->cur_idle_tssi == 0) {
1947 if (phy->radio_ver == 0x2050 && phy->analog == 0) {
1948 b43_radio_maskset(dev, 0x0076, 0x00F7, 0x0084);
1949 } else {
1950 struct b43_rfatt rfatt;
1951 struct b43_bbatt bbatt;
1952
1953 memcpy(&old_rfatt, &gphy->rfatt, sizeof(old_rfatt));
1954 memcpy(&old_bbatt, &gphy->bbatt, sizeof(old_bbatt));
1955 old_tx_control = gphy->tx_control;
1956
1957 bbatt.att = 11;
1958 if (phy->radio_rev == 8) {
1959 rfatt.att = 15;
1960 rfatt.with_padmix = true;
1961 } else {
1962 rfatt.att = 9;
1963 rfatt.with_padmix = false;
1964 }
1965 b43_set_txpower_g(dev, &bbatt, &rfatt, 0);
1966 }
1967 b43_dummy_transmission(dev, false, true);
1968 gphy->cur_idle_tssi = b43_phy_read(dev, B43_PHY_ITSSI);
1969 if (B43_DEBUG) {
1970 /* Current-Idle-TSSI sanity check. */
1971 if (abs(gphy->cur_idle_tssi - gphy->tgt_idle_tssi) >= 20) {
1972 b43dbg(dev->wl,
1973 "!WARNING! Idle-TSSI phy->cur_idle_tssi "
1974 "measuring failed. (cur=%d, tgt=%d). Disabling TX power "
1975 "adjustment.\n", gphy->cur_idle_tssi,
1976 gphy->tgt_idle_tssi);
1977 gphy->cur_idle_tssi = 0;
1978 }
1979 }
1980 if (phy->radio_ver == 0x2050 && phy->analog == 0) {
1981 b43_radio_mask(dev, 0x0076, 0xFF7B);
1982 } else {
1983 b43_set_txpower_g(dev, &old_bbatt,
1984 &old_rfatt, old_tx_control);
1985 }
1986 }
1987 b43_hardware_pctl_init_gphy(dev);
1988 b43_shm_clear_tssi(dev);
1989}
1990
1991static void b43_phy_inita(struct b43_wldev *dev)
1992{
1993 struct b43_phy *phy = &dev->phy;
1994
1995 might_sleep();
1996
1997 if (phy->rev >= 6) {
1998 if (b43_phy_read(dev, B43_PHY_ENCORE) & B43_PHY_ENCORE_EN)
1999 b43_phy_set(dev, B43_PHY_ENCORE, 0x0010);
2000 else
2001 b43_phy_mask(dev, B43_PHY_ENCORE, ~0x1010);
2002 }
2003
2004 b43_wa_all(dev);
2005
2006 if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL)
2007 b43_phy_maskset(dev, B43_PHY_OFDM(0x6E), 0xE000, 0x3CF);
2008}
2009
2010static void b43_phy_initg(struct b43_wldev *dev)
2011{
2012 struct b43_phy *phy = &dev->phy;
2013 struct b43_phy_g *gphy = phy->g;
2014 u16 tmp;
2015
2016 if (phy->rev == 1)
2017 b43_phy_initb5(dev);
2018 else
2019 b43_phy_initb6(dev);
2020
2021 if (phy->rev >= 2 || phy->gmode)
2022 b43_phy_inita(dev);
2023
2024 if (phy->rev >= 2) {
2025 b43_phy_write(dev, B43_PHY_ANALOGOVER, 0);
2026 b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, 0);
2027 }
2028 if (phy->rev == 2) {
2029 b43_phy_write(dev, B43_PHY_RFOVER, 0);
2030 b43_phy_write(dev, B43_PHY_PGACTL, 0xC0);
2031 }
2032 if (phy->rev > 5) {
2033 b43_phy_write(dev, B43_PHY_RFOVER, 0x400);
2034 b43_phy_write(dev, B43_PHY_PGACTL, 0xC0);
2035 }
2036 if (phy->gmode || phy->rev >= 2) {
2037 tmp = b43_phy_read(dev, B43_PHY_VERSION_OFDM);
2038 tmp &= B43_PHYVER_VERSION;
2039 if (tmp == 3 || tmp == 5) {
2040 b43_phy_write(dev, B43_PHY_OFDM(0xC2), 0x1816);
2041 b43_phy_write(dev, B43_PHY_OFDM(0xC3), 0x8006);
2042 }
2043 if (tmp == 5) {
2044 b43_phy_maskset(dev, B43_PHY_OFDM(0xCC), 0x00FF, 0x1F00);
2045 }
2046 }
2047 if ((phy->rev <= 2 && phy->gmode) || phy->rev >= 2)
2048 b43_phy_write(dev, B43_PHY_OFDM(0x7E), 0x78);
2049 if (phy->radio_rev == 8) {
2050 b43_phy_set(dev, B43_PHY_EXTG(0x01), 0x80);
2051 b43_phy_set(dev, B43_PHY_OFDM(0x3E), 0x4);
2052 }
2053 if (has_loopback_gain(phy))
2054 b43_calc_loopback_gain(dev);
2055
2056 if (phy->radio_rev != 8) {
2057 if (gphy->initval == 0xFFFF)
2058 gphy->initval = b43_radio_init2050(dev);
2059 else
2060 b43_radio_write16(dev, 0x0078, gphy->initval);
2061 }
2062 b43_lo_g_init(dev);
2063 if (has_tx_magnification(phy)) {
2064 b43_radio_write16(dev, 0x52,
2065 (b43_radio_read16(dev, 0x52) & 0xFF00)
2066 | gphy->lo_control->tx_bias | gphy->
2067 lo_control->tx_magn);
2068 } else {
2069 b43_radio_maskset(dev, 0x52, 0xFFF0, gphy->lo_control->tx_bias);
2070 }
2071 if (phy->rev >= 6) {
2072 b43_phy_maskset(dev, B43_PHY_CCK(0x36), 0x0FFF, (gphy->lo_control->tx_bias << 12));
2073 }
2074 if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL)
2075 b43_phy_write(dev, B43_PHY_CCK(0x2E), 0x8075);
2076 else
2077 b43_phy_write(dev, B43_PHY_CCK(0x2E), 0x807F);
2078 if (phy->rev < 2)
2079 b43_phy_write(dev, B43_PHY_CCK(0x2F), 0x101);
2080 else
2081 b43_phy_write(dev, B43_PHY_CCK(0x2F), 0x202);
2082 if (phy->gmode || phy->rev >= 2) {
2083 b43_lo_g_adjust(dev);
2084 b43_phy_write(dev, B43_PHY_LO_MASK, 0x8078);
2085 }
2086
2087 if (!(dev->dev->bus_sprom->boardflags_lo & B43_BFL_RSSI)) {
2088 /* The specs state to update the NRSSI LT with
2089 * the value 0x7FFFFFFF here. I think that is some weird
2090 * compiler optimization in the original driver.
2091 * Essentially, what we do here is resetting all NRSSI LT
2092 * entries to -32 (see the clamp_val() in nrssi_hw_update())
2093 */
2094 b43_nrssi_hw_update(dev, 0xFFFF); //FIXME?
2095 b43_calc_nrssi_threshold(dev);
2096 } else if (phy->gmode || phy->rev >= 2) {
2097 if (gphy->nrssi[0] == -1000) {
2098 B43_WARN_ON(gphy->nrssi[1] != -1000);
2099 b43_calc_nrssi_slope(dev);
2100 } else
2101 b43_calc_nrssi_threshold(dev);
2102 }
2103 if (phy->radio_rev == 8)
2104 b43_phy_write(dev, B43_PHY_EXTG(0x05), 0x3230);
2105 b43_phy_init_pctl(dev);
2106 /* FIXME: The spec says in the following if, the 0 should be replaced
2107 'if OFDM may not be used in the current locale'
2108 but OFDM is legal everywhere */
2109 if ((dev->dev->chip_id == 0x4306
2110 && dev->dev->chip_pkg == 2) || 0) {
2111 b43_phy_mask(dev, B43_PHY_CRS0, 0xBFFF);
2112 b43_phy_mask(dev, B43_PHY_OFDM(0xC3), 0x7FFF);
2113 }
2114}
2115
2116void b43_gphy_channel_switch(struct b43_wldev *dev,
2117 unsigned int channel,
2118 bool synthetic_pu_workaround)
2119{
2120 if (synthetic_pu_workaround)
2121 b43_synth_pu_workaround(dev, channel);
2122
2123 b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel));
2124
2125 if (channel == 14) {
2126 if (dev->dev->bus_sprom->country_code ==
2127 SSB_SPROM1CCODE_JAPAN)
2128 b43_hf_write(dev,
2129 b43_hf_read(dev) & ~B43_HF_ACPR);
2130 else
2131 b43_hf_write(dev,
2132 b43_hf_read(dev) | B43_HF_ACPR);
2133 b43_write16(dev, B43_MMIO_CHANNEL_EXT,
2134 b43_read16(dev, B43_MMIO_CHANNEL_EXT)
2135 | (1 << 11));
2136 } else {
2137 b43_write16(dev, B43_MMIO_CHANNEL_EXT,
2138 b43_read16(dev, B43_MMIO_CHANNEL_EXT)
2139 & 0xF7BF);
2140 }
2141}
2142
2143static void default_baseband_attenuation(struct b43_wldev *dev,
2144 struct b43_bbatt *bb)
2145{
2146 struct b43_phy *phy = &dev->phy;
2147
2148 if (phy->radio_ver == 0x2050 && phy->radio_rev < 6)
2149 bb->att = 0;
2150 else
2151 bb->att = 2;
2152}
2153
2154static void default_radio_attenuation(struct b43_wldev *dev,
2155 struct b43_rfatt *rf)
2156{
2157 struct b43_bus_dev *bdev = dev->dev;
2158 struct b43_phy *phy = &dev->phy;
2159
2160 rf->with_padmix = false;
2161
2162 if (dev->dev->board_vendor == SSB_BOARDVENDOR_BCM &&
2163 dev->dev->board_type == SSB_BOARD_BCM4309G) {
2164 if (dev->dev->board_rev < 0x43) {
2165 rf->att = 2;
2166 return;
2167 } else if (dev->dev->board_rev < 0x51) {
2168 rf->att = 3;
2169 return;
2170 }
2171 }
2172
2173 switch (phy->radio_ver) {
2174 case 0x2053:
2175 switch (phy->radio_rev) {
2176 case 1:
2177 rf->att = 6;
2178 return;
2179 }
2180 break;
2181 case 0x2050:
2182 switch (phy->radio_rev) {
2183 case 0:
2184 rf->att = 5;
2185 return;
2186 case 1:
2187 if (phy->type == B43_PHYTYPE_G) {
2188 if (bdev->board_vendor == SSB_BOARDVENDOR_BCM
2189 && bdev->board_type == SSB_BOARD_BCM4309G
2190 && bdev->board_rev >= 30)
2191 rf->att = 3;
2192 else if (bdev->board_vendor ==
2193 SSB_BOARDVENDOR_BCM
2194 && bdev->board_type ==
2195 SSB_BOARD_BU4306)
2196 rf->att = 3;
2197 else
2198 rf->att = 1;
2199 } else {
2200 if (bdev->board_vendor == SSB_BOARDVENDOR_BCM
2201 && bdev->board_type == SSB_BOARD_BCM4309G
2202 && bdev->board_rev >= 30)
2203 rf->att = 7;
2204 else
2205 rf->att = 6;
2206 }
2207 return;
2208 case 2:
2209 if (phy->type == B43_PHYTYPE_G) {
2210 if (bdev->board_vendor == SSB_BOARDVENDOR_BCM
2211 && bdev->board_type == SSB_BOARD_BCM4309G
2212 && bdev->board_rev >= 30)
2213 rf->att = 3;
2214 else if (bdev->board_vendor ==
2215 SSB_BOARDVENDOR_BCM
2216 && bdev->board_type ==
2217 SSB_BOARD_BU4306)
2218 rf->att = 5;
2219 else if (bdev->chip_id == 0x4320)
2220 rf->att = 4;
2221 else
2222 rf->att = 3;
2223 } else
2224 rf->att = 6;
2225 return;
2226 case 3:
2227 rf->att = 5;
2228 return;
2229 case 4:
2230 case 5:
2231 rf->att = 1;
2232 return;
2233 case 6:
2234 case 7:
2235 rf->att = 5;
2236 return;
2237 case 8:
2238 rf->att = 0xA;
2239 rf->with_padmix = true;
2240 return;
2241 case 9:
2242 default:
2243 rf->att = 5;
2244 return;
2245 }
2246 }
2247 rf->att = 5;
2248}
2249
2250static u16 default_tx_control(struct b43_wldev *dev)
2251{
2252 struct b43_phy *phy = &dev->phy;
2253
2254 if (phy->radio_ver != 0x2050)
2255 return 0;
2256 if (phy->radio_rev == 1)
2257 return B43_TXCTL_PA2DB | B43_TXCTL_TXMIX;
2258 if (phy->radio_rev < 6)
2259 return B43_TXCTL_PA2DB;
2260 if (phy->radio_rev == 8)
2261 return B43_TXCTL_TXMIX;
2262 return 0;
2263}
2264
2265static u8 b43_gphy_aci_detect(struct b43_wldev *dev, u8 channel)
2266{
2267 struct b43_phy *phy = &dev->phy;
2268 struct b43_phy_g *gphy = phy->g;
2269 u8 ret = 0;
2270 u16 saved, rssi, temp;
2271 int i, j = 0;
2272
2273 saved = b43_phy_read(dev, 0x0403);
2274 b43_switch_channel(dev, channel);
2275 b43_phy_write(dev, 0x0403, (saved & 0xFFF8) | 5);
2276 if (gphy->aci_hw_rssi)
2277 rssi = b43_phy_read(dev, 0x048A) & 0x3F;
2278 else
2279 rssi = saved & 0x3F;
2280 /* clamp temp to signed 5bit */
2281 if (rssi > 32)
2282 rssi -= 64;
2283 for (i = 0; i < 100; i++) {
2284 temp = (b43_phy_read(dev, 0x047F) >> 8) & 0x3F;
2285 if (temp > 32)
2286 temp -= 64;
2287 if (temp < rssi)
2288 j++;
2289 if (j >= 20)
2290 ret = 1;
2291 }
2292 b43_phy_write(dev, 0x0403, saved);
2293
2294 return ret;
2295}
2296
2297static u8 b43_gphy_aci_scan(struct b43_wldev *dev)
2298{
2299 struct b43_phy *phy = &dev->phy;
2300 u8 ret[13] = { 0 };
2301 unsigned int channel = phy->channel;
2302 unsigned int i, j, start, end;
2303
2304 if (!((phy->type == B43_PHYTYPE_G) && (phy->rev > 0)))
2305 return 0;
2306
2307 b43_phy_lock(dev);
2308 b43_radio_lock(dev);
2309 b43_phy_mask(dev, 0x0802, 0xFFFC);
2310 b43_phy_mask(dev, B43_PHY_G_CRS, 0x7FFF);
2311 b43_set_all_gains(dev, 3, 8, 1);
2312
2313 start = (channel - 5 > 0) ? channel - 5 : 1;
2314 end = (channel + 5 < 14) ? channel + 5 : 13;
2315
2316 for (i = start; i <= end; i++) {
2317 if (abs(channel - i) > 2)
2318 ret[i - 1] = b43_gphy_aci_detect(dev, i);
2319 }
2320 b43_switch_channel(dev, channel);
2321 b43_phy_maskset(dev, 0x0802, 0xFFFC, 0x0003);
2322 b43_phy_mask(dev, 0x0403, 0xFFF8);
2323 b43_phy_set(dev, B43_PHY_G_CRS, 0x8000);
2324 b43_set_original_gains(dev);
2325 for (i = 0; i < 13; i++) {
2326 if (!ret[i])
2327 continue;
2328 end = (i + 5 < 13) ? i + 5 : 13;
2329 for (j = i; j < end; j++)
2330 ret[j] = 1;
2331 }
2332 b43_radio_unlock(dev);
2333 b43_phy_unlock(dev);
2334
2335 return ret[channel - 1];
2336}
2337
2338static s32 b43_tssi2dbm_ad(s32 num, s32 den)
2339{
2340 if (num < 0)
2341 return num / den;
2342 else
2343 return (num + den / 2) / den;
2344}
2345
2346static s8 b43_tssi2dbm_entry(s8 entry[], u8 index,
2347 s16 pab0, s16 pab1, s16 pab2)
2348{
2349 s32 m1, m2, f = 256, q, delta;
2350 s8 i = 0;
2351
2352 m1 = b43_tssi2dbm_ad(16 * pab0 + index * pab1, 32);
2353 m2 = max(b43_tssi2dbm_ad(32768 + index * pab2, 256), 1);
2354 do {
2355 if (i > 15)
2356 return -EINVAL;
2357 q = b43_tssi2dbm_ad(f * 4096 -
2358 b43_tssi2dbm_ad(m2 * f, 16) * f, 2048);
2359 delta = abs(q - f);
2360 f = q;
2361 i++;
2362 } while (delta >= 2);
2363 entry[index] = clamp_val(b43_tssi2dbm_ad(m1 * f, 8192), -127, 128);
2364 return 0;
2365}
2366
2367u8 *b43_generate_dyn_tssi2dbm_tab(struct b43_wldev *dev,
2368 s16 pab0, s16 pab1, s16 pab2)
2369{
2370 unsigned int i;
2371 u8 *tab;
2372 int err;
2373
2374 tab = kmalloc(64, GFP_KERNEL);
2375 if (!tab) {
2376 b43err(dev->wl, "Could not allocate memory "
2377 "for tssi2dbm table\n");
2378 return NULL;
2379 }
2380 for (i = 0; i < 64; i++) {
2381 err = b43_tssi2dbm_entry(tab, i, pab0, pab1, pab2);
2382 if (err) {
2383 b43err(dev->wl, "Could not generate "
2384 "tssi2dBm table\n");
2385 kfree(tab);
2386 return NULL;
2387 }
2388 }
2389
2390 return tab;
2391}
2392
2393/* Initialise the TSSI->dBm lookup table */
2394static int b43_gphy_init_tssi2dbm_table(struct b43_wldev *dev)
2395{
2396 struct b43_phy *phy = &dev->phy;
2397 struct b43_phy_g *gphy = phy->g;
2398 s16 pab0, pab1, pab2;
2399
2400 pab0 = (s16) (dev->dev->bus_sprom->pa0b0);
2401 pab1 = (s16) (dev->dev->bus_sprom->pa0b1);
2402 pab2 = (s16) (dev->dev->bus_sprom->pa0b2);
2403
2404 B43_WARN_ON((dev->dev->chip_id == 0x4301) &&
2405 (phy->radio_ver != 0x2050)); /* Not supported anymore */
2406
2407 gphy->dyn_tssi_tbl = false;
2408
2409 if (pab0 != 0 && pab1 != 0 && pab2 != 0 &&
2410 pab0 != -1 && pab1 != -1 && pab2 != -1) {
2411 /* The pabX values are set in SPROM. Use them. */
2412 if ((s8) dev->dev->bus_sprom->itssi_bg != 0 &&
2413 (s8) dev->dev->bus_sprom->itssi_bg != -1) {
2414 gphy->tgt_idle_tssi =
2415 (s8) (dev->dev->bus_sprom->itssi_bg);
2416 } else
2417 gphy->tgt_idle_tssi = 62;
2418 gphy->tssi2dbm = b43_generate_dyn_tssi2dbm_tab(dev, pab0,
2419 pab1, pab2);
2420 if (!gphy->tssi2dbm)
2421 return -ENOMEM;
2422 gphy->dyn_tssi_tbl = true;
2423 } else {
2424 /* pabX values not set in SPROM. */
2425 gphy->tgt_idle_tssi = 52;
2426 gphy->tssi2dbm = b43_tssi2dbm_g_table;
2427 }
2428
2429 return 0;
2430}
2431
2432static int b43_gphy_op_allocate(struct b43_wldev *dev)
2433{
2434 struct b43_phy_g *gphy;
2435 struct b43_txpower_lo_control *lo;
2436 int err;
2437
2438 gphy = kzalloc(sizeof(*gphy), GFP_KERNEL);
2439 if (!gphy) {
2440 err = -ENOMEM;
2441 goto error;
2442 }
2443 dev->phy.g = gphy;
2444
2445 lo = kzalloc(sizeof(*lo), GFP_KERNEL);
2446 if (!lo) {
2447 err = -ENOMEM;
2448 goto err_free_gphy;
2449 }
2450 gphy->lo_control = lo;
2451
2452 err = b43_gphy_init_tssi2dbm_table(dev);
2453 if (err)
2454 goto err_free_lo;
2455
2456 return 0;
2457
2458err_free_lo:
2459 kfree(lo);
2460err_free_gphy:
2461 kfree(gphy);
2462error:
2463 return err;
2464}
2465
2466static void b43_gphy_op_prepare_structs(struct b43_wldev *dev)
2467{
2468 struct b43_phy *phy = &dev->phy;
2469 struct b43_phy_g *gphy = phy->g;
2470 const void *tssi2dbm;
2471 int tgt_idle_tssi;
2472 struct b43_txpower_lo_control *lo;
2473 unsigned int i;
2474
2475 /* tssi2dbm table is constant, so it is initialized at alloc time.
2476 * Save a copy of the pointer. */
2477 tssi2dbm = gphy->tssi2dbm;
2478 tgt_idle_tssi = gphy->tgt_idle_tssi;
2479 /* Save the LO pointer. */
2480 lo = gphy->lo_control;
2481
2482 /* Zero out the whole PHY structure. */
2483 memset(gphy, 0, sizeof(*gphy));
2484
2485 /* Restore pointers. */
2486 gphy->tssi2dbm = tssi2dbm;
2487 gphy->tgt_idle_tssi = tgt_idle_tssi;
2488 gphy->lo_control = lo;
2489
2490 memset(gphy->minlowsig, 0xFF, sizeof(gphy->minlowsig));
2491
2492 /* NRSSI */
2493 for (i = 0; i < ARRAY_SIZE(gphy->nrssi); i++)
2494 gphy->nrssi[i] = -1000;
2495 for (i = 0; i < ARRAY_SIZE(gphy->nrssi_lt); i++)
2496 gphy->nrssi_lt[i] = i;
2497
2498 gphy->lofcal = 0xFFFF;
2499 gphy->initval = 0xFFFF;
2500
2501 gphy->interfmode = B43_INTERFMODE_NONE;
2502
2503 /* OFDM-table address caching. */
2504 gphy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_UNKNOWN;
2505
2506 gphy->average_tssi = 0xFF;
2507
2508 /* Local Osciallator structure */
2509 lo->tx_bias = 0xFF;
2510 INIT_LIST_HEAD(&lo->calib_list);
2511}
2512
2513static void b43_gphy_op_free(struct b43_wldev *dev)
2514{
2515 struct b43_phy *phy = &dev->phy;
2516 struct b43_phy_g *gphy = phy->g;
2517
2518 kfree(gphy->lo_control);
2519
2520 if (gphy->dyn_tssi_tbl)
2521 kfree(gphy->tssi2dbm);
2522 gphy->dyn_tssi_tbl = false;
2523 gphy->tssi2dbm = NULL;
2524
2525 kfree(gphy);
2526 dev->phy.g = NULL;
2527}
2528
2529static int b43_gphy_op_prepare_hardware(struct b43_wldev *dev)
2530{
2531 struct b43_phy *phy = &dev->phy;
2532 struct b43_phy_g *gphy = phy->g;
2533 struct b43_txpower_lo_control *lo = gphy->lo_control;
2534
2535 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
2536
2537 default_baseband_attenuation(dev, &gphy->bbatt);
2538 default_radio_attenuation(dev, &gphy->rfatt);
2539 gphy->tx_control = (default_tx_control(dev) << 4);
2540 generate_rfatt_list(dev, &lo->rfatt_list);
2541 generate_bbatt_list(dev, &lo->bbatt_list);
2542
2543 /* Commit previous writes */
2544 b43_read32(dev, B43_MMIO_MACCTL);
2545
2546 if (phy->rev == 1) {
2547 /* Workaround: Temporarly disable gmode through the early init
2548 * phase, as the gmode stuff is not needed for phy rev 1 */
2549 phy->gmode = false;
2550 b43_wireless_core_reset(dev, 0);
2551 b43_phy_initg(dev);
2552 phy->gmode = true;
2553 b43_wireless_core_reset(dev, 1);
2554 }
2555
2556 return 0;
2557}
2558
2559static int b43_gphy_op_init(struct b43_wldev *dev)
2560{
2561 b43_phy_initg(dev);
2562
2563 return 0;
2564}
2565
2566static void b43_gphy_op_exit(struct b43_wldev *dev)
2567{
2568 b43_lo_g_cleanup(dev);
2569}
2570
2571static u16 b43_gphy_op_read(struct b43_wldev *dev, u16 reg)
2572{
2573 b43_write16f(dev, B43_MMIO_PHY_CONTROL, reg);
2574 return b43_read16(dev, B43_MMIO_PHY_DATA);
2575}
2576
2577static void b43_gphy_op_write(struct b43_wldev *dev, u16 reg, u16 value)
2578{
2579 b43_write16f(dev, B43_MMIO_PHY_CONTROL, reg);
2580 b43_write16(dev, B43_MMIO_PHY_DATA, value);
2581}
2582
2583static u16 b43_gphy_op_radio_read(struct b43_wldev *dev, u16 reg)
2584{
2585 /* Register 1 is a 32-bit register. */
2586 B43_WARN_ON(reg == 1);
2587 /* G-PHY needs 0x80 for read access. */
2588 reg |= 0x80;
2589
2590 b43_write16f(dev, B43_MMIO_RADIO_CONTROL, reg);
2591 return b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
2592}
2593
2594static void b43_gphy_op_radio_write(struct b43_wldev *dev, u16 reg, u16 value)
2595{
2596 /* Register 1 is a 32-bit register. */
2597 B43_WARN_ON(reg == 1);
2598
2599 b43_write16f(dev, B43_MMIO_RADIO_CONTROL, reg);
2600 b43_write16(dev, B43_MMIO_RADIO_DATA_LOW, value);
2601}
2602
2603static bool b43_gphy_op_supports_hwpctl(struct b43_wldev *dev)
2604{
2605 return (dev->phy.rev >= 6);
2606}
2607
2608static void b43_gphy_op_software_rfkill(struct b43_wldev *dev,
2609 bool blocked)
2610{
2611 struct b43_phy *phy = &dev->phy;
2612 struct b43_phy_g *gphy = phy->g;
2613 unsigned int channel;
2614
2615 might_sleep();
2616
2617 if (!blocked) {
2618 /* Turn radio ON */
2619 if (phy->radio_on)
2620 return;
2621
2622 b43_phy_write(dev, 0x0015, 0x8000);
2623 b43_phy_write(dev, 0x0015, 0xCC00);
2624 b43_phy_write(dev, 0x0015, (phy->gmode ? 0x00C0 : 0x0000));
2625 if (gphy->radio_off_context.valid) {
2626 /* Restore the RFover values. */
2627 b43_phy_write(dev, B43_PHY_RFOVER,
2628 gphy->radio_off_context.rfover);
2629 b43_phy_write(dev, B43_PHY_RFOVERVAL,
2630 gphy->radio_off_context.rfoverval);
2631 gphy->radio_off_context.valid = false;
2632 }
2633 channel = phy->channel;
2634 b43_gphy_channel_switch(dev, 6, 1);
2635 b43_gphy_channel_switch(dev, channel, 0);
2636 } else {
2637 /* Turn radio OFF */
2638 u16 rfover, rfoverval;
2639
2640 rfover = b43_phy_read(dev, B43_PHY_RFOVER);
2641 rfoverval = b43_phy_read(dev, B43_PHY_RFOVERVAL);
2642 gphy->radio_off_context.rfover = rfover;
2643 gphy->radio_off_context.rfoverval = rfoverval;
2644 gphy->radio_off_context.valid = true;
2645 b43_phy_write(dev, B43_PHY_RFOVER, rfover | 0x008C);
2646 b43_phy_write(dev, B43_PHY_RFOVERVAL, rfoverval & 0xFF73);
2647 }
2648}
2649
2650static int b43_gphy_op_switch_channel(struct b43_wldev *dev,
2651 unsigned int new_channel)
2652{
2653 if ((new_channel < 1) || (new_channel > 14))
2654 return -EINVAL;
2655 b43_gphy_channel_switch(dev, new_channel, 0);
2656
2657 return 0;
2658}
2659
2660static unsigned int b43_gphy_op_get_default_chan(struct b43_wldev *dev)
2661{
2662 return 1; /* Default to channel 1 */
2663}
2664
2665static void b43_gphy_op_set_rx_antenna(struct b43_wldev *dev, int antenna)
2666{
2667 struct b43_phy *phy = &dev->phy;
2668 u16 tmp;
2669 int autodiv = 0;
2670
2671 if (antenna == B43_ANTENNA_AUTO0 || antenna == B43_ANTENNA_AUTO1)
2672 autodiv = 1;
2673
2674 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_ANTDIVHELP);
2675
2676 b43_phy_maskset(dev, B43_PHY_BBANDCFG, ~B43_PHY_BBANDCFG_RXANT,
2677 (autodiv ? B43_ANTENNA_AUTO1 : antenna) <<
2678 B43_PHY_BBANDCFG_RXANT_SHIFT);
2679
2680 if (autodiv) {
2681 tmp = b43_phy_read(dev, B43_PHY_ANTDWELL);
2682 if (antenna == B43_ANTENNA_AUTO1)
2683 tmp &= ~B43_PHY_ANTDWELL_AUTODIV1;
2684 else
2685 tmp |= B43_PHY_ANTDWELL_AUTODIV1;
2686 b43_phy_write(dev, B43_PHY_ANTDWELL, tmp);
2687 }
2688
2689 tmp = b43_phy_read(dev, B43_PHY_ANTWRSETT);
2690 if (autodiv)
2691 tmp |= B43_PHY_ANTWRSETT_ARXDIV;
2692 else
2693 tmp &= ~B43_PHY_ANTWRSETT_ARXDIV;
2694 b43_phy_write(dev, B43_PHY_ANTWRSETT, tmp);
2695
2696 if (autodiv)
2697 b43_phy_set(dev, B43_PHY_ANTWRSETT, B43_PHY_ANTWRSETT_ARXDIV);
2698 else {
2699 b43_phy_mask(dev, B43_PHY_ANTWRSETT,
2700 B43_PHY_ANTWRSETT_ARXDIV);
2701 }
2702
2703 if (phy->rev >= 2) {
2704 b43_phy_set(dev, B43_PHY_OFDM61, B43_PHY_OFDM61_10);
2705 b43_phy_maskset(dev, B43_PHY_DIVSRCHGAINBACK, 0xFF00, 0x15);
2706
2707 if (phy->rev == 2)
2708 b43_phy_write(dev, B43_PHY_ADIVRELATED, 8);
2709 else
2710 b43_phy_maskset(dev, B43_PHY_ADIVRELATED, 0xFF00, 8);
2711 }
2712 if (phy->rev >= 6)
2713 b43_phy_write(dev, B43_PHY_OFDM9B, 0xDC);
2714
2715 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_ANTDIVHELP);
2716}
2717
2718static int b43_gphy_op_interf_mitigation(struct b43_wldev *dev,
2719 enum b43_interference_mitigation mode)
2720{
2721 struct b43_phy *phy = &dev->phy;
2722 struct b43_phy_g *gphy = phy->g;
2723 int currentmode;
2724
2725 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
2726 if ((phy->rev == 0) || (!phy->gmode))
2727 return -ENODEV;
2728
2729 gphy->aci_wlan_automatic = false;
2730 switch (mode) {
2731 case B43_INTERFMODE_AUTOWLAN:
2732 gphy->aci_wlan_automatic = true;
2733 if (gphy->aci_enable)
2734 mode = B43_INTERFMODE_MANUALWLAN;
2735 else
2736 mode = B43_INTERFMODE_NONE;
2737 break;
2738 case B43_INTERFMODE_NONE:
2739 case B43_INTERFMODE_NONWLAN:
2740 case B43_INTERFMODE_MANUALWLAN:
2741 break;
2742 default:
2743 return -EINVAL;
2744 }
2745
2746 currentmode = gphy->interfmode;
2747 if (currentmode == mode)
2748 return 0;
2749 if (currentmode != B43_INTERFMODE_NONE)
2750 b43_radio_interference_mitigation_disable(dev, currentmode);
2751
2752 if (mode == B43_INTERFMODE_NONE) {
2753 gphy->aci_enable = false;
2754 gphy->aci_hw_rssi = false;
2755 } else
2756 b43_radio_interference_mitigation_enable(dev, mode);
2757 gphy->interfmode = mode;
2758
2759 return 0;
2760}
2761
2762/* http://bcm-specs.sipsolutions.net/EstimatePowerOut
2763 * This function converts a TSSI value to dBm in Q5.2
2764 */
2765static s8 b43_gphy_estimate_power_out(struct b43_wldev *dev, s8 tssi)
2766{
2767 struct b43_phy_g *gphy = dev->phy.g;
2768 s8 dbm;
2769 s32 tmp;
2770
2771 tmp = (gphy->tgt_idle_tssi - gphy->cur_idle_tssi + tssi);
2772 tmp = clamp_val(tmp, 0x00, 0x3F);
2773 dbm = gphy->tssi2dbm[tmp];
2774
2775 return dbm;
2776}
2777
2778static void b43_put_attenuation_into_ranges(struct b43_wldev *dev,
2779 int *_bbatt, int *_rfatt)
2780{
2781 int rfatt = *_rfatt;
2782 int bbatt = *_bbatt;
2783 struct b43_txpower_lo_control *lo = dev->phy.g->lo_control;
2784
2785 /* Get baseband and radio attenuation values into their permitted ranges.
2786 * Radio attenuation affects power level 4 times as much as baseband. */
2787
2788 /* Range constants */
2789 const int rf_min = lo->rfatt_list.min_val;
2790 const int rf_max = lo->rfatt_list.max_val;
2791 const int bb_min = lo->bbatt_list.min_val;
2792 const int bb_max = lo->bbatt_list.max_val;
2793
2794 while (1) {
2795 if (rfatt > rf_max && bbatt > bb_max - 4)
2796 break; /* Can not get it into ranges */
2797 if (rfatt < rf_min && bbatt < bb_min + 4)
2798 break; /* Can not get it into ranges */
2799 if (bbatt > bb_max && rfatt > rf_max - 1)
2800 break; /* Can not get it into ranges */
2801 if (bbatt < bb_min && rfatt < rf_min + 1)
2802 break; /* Can not get it into ranges */
2803
2804 if (bbatt > bb_max) {
2805 bbatt -= 4;
2806 rfatt += 1;
2807 continue;
2808 }
2809 if (bbatt < bb_min) {
2810 bbatt += 4;
2811 rfatt -= 1;
2812 continue;
2813 }
2814 if (rfatt > rf_max) {
2815 rfatt -= 1;
2816 bbatt += 4;
2817 continue;
2818 }
2819 if (rfatt < rf_min) {
2820 rfatt += 1;
2821 bbatt -= 4;
2822 continue;
2823 }
2824 break;
2825 }
2826
2827 *_rfatt = clamp_val(rfatt, rf_min, rf_max);
2828 *_bbatt = clamp_val(bbatt, bb_min, bb_max);
2829}
2830
2831static void b43_gphy_op_adjust_txpower(struct b43_wldev *dev)
2832{
2833 struct b43_phy *phy = &dev->phy;
2834 struct b43_phy_g *gphy = phy->g;
2835 int rfatt, bbatt;
2836 u8 tx_control;
2837
2838 b43_mac_suspend(dev);
2839
2840 /* Calculate the new attenuation values. */
2841 bbatt = gphy->bbatt.att;
2842 bbatt += gphy->bbatt_delta;
2843 rfatt = gphy->rfatt.att;
2844 rfatt += gphy->rfatt_delta;
2845
2846 b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt);
2847 tx_control = gphy->tx_control;
2848 if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 2)) {
2849 if (rfatt <= 1) {
2850 if (tx_control == 0) {
2851 tx_control =
2852 B43_TXCTL_PA2DB |
2853 B43_TXCTL_TXMIX;
2854 rfatt += 2;
2855 bbatt += 2;
2856 } else if (dev->dev->bus_sprom->
2857 boardflags_lo &
2858 B43_BFL_PACTRL) {
2859 bbatt += 4 * (rfatt - 2);
2860 rfatt = 2;
2861 }
2862 } else if (rfatt > 4 && tx_control) {
2863 tx_control = 0;
2864 if (bbatt < 3) {
2865 rfatt -= 3;
2866 bbatt += 2;
2867 } else {
2868 rfatt -= 2;
2869 bbatt -= 2;
2870 }
2871 }
2872 }
2873 /* Save the control values */
2874 gphy->tx_control = tx_control;
2875 b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt);
2876 gphy->rfatt.att = rfatt;
2877 gphy->bbatt.att = bbatt;
2878
2879 if (b43_debug(dev, B43_DBG_XMITPOWER))
2880 b43dbg(dev->wl, "Adjusting TX power\n");
2881
2882 /* Adjust the hardware */
2883 b43_phy_lock(dev);
2884 b43_radio_lock(dev);
2885 b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt,
2886 gphy->tx_control);
2887 b43_radio_unlock(dev);
2888 b43_phy_unlock(dev);
2889
2890 b43_mac_enable(dev);
2891}
2892
2893static enum b43_txpwr_result b43_gphy_op_recalc_txpower(struct b43_wldev *dev,
2894 bool ignore_tssi)
2895{
2896 struct b43_phy *phy = &dev->phy;
2897 struct b43_phy_g *gphy = phy->g;
2898 unsigned int average_tssi;
2899 int cck_result, ofdm_result;
2900 int estimated_pwr, desired_pwr, pwr_adjust;
2901 int rfatt_delta, bbatt_delta;
2902 unsigned int max_pwr;
2903
2904 /* First get the average TSSI */
2905 cck_result = b43_phy_shm_tssi_read(dev, B43_SHM_SH_TSSI_CCK);
2906 ofdm_result = b43_phy_shm_tssi_read(dev, B43_SHM_SH_TSSI_OFDM_G);
2907 if ((cck_result < 0) && (ofdm_result < 0)) {
2908 /* No TSSI information available */
2909 if (!ignore_tssi)
2910 goto no_adjustment_needed;
2911 cck_result = 0;
2912 ofdm_result = 0;
2913 }
2914 if (cck_result < 0)
2915 average_tssi = ofdm_result;
2916 else if (ofdm_result < 0)
2917 average_tssi = cck_result;
2918 else
2919 average_tssi = (cck_result + ofdm_result) / 2;
2920 /* Merge the average with the stored value. */
2921 if (likely(gphy->average_tssi != 0xFF))
2922 average_tssi = (average_tssi + gphy->average_tssi) / 2;
2923 gphy->average_tssi = average_tssi;
2924 B43_WARN_ON(average_tssi >= B43_TSSI_MAX);
2925
2926 /* Estimate the TX power emission based on the TSSI */
2927 estimated_pwr = b43_gphy_estimate_power_out(dev, average_tssi);
2928
2929 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
2930 max_pwr = dev->dev->bus_sprom->maxpwr_bg;
2931 if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL)
2932 max_pwr -= 3; /* minus 0.75 */
2933 if (unlikely(max_pwr >= INT_TO_Q52(30/*dBm*/))) {
2934 b43warn(dev->wl,
2935 "Invalid max-TX-power value in SPROM.\n");
2936 max_pwr = INT_TO_Q52(20); /* fake it */
2937 dev->dev->bus_sprom->maxpwr_bg = max_pwr;
2938 }
2939
2940 /* Get desired power (in Q5.2) */
2941 if (phy->desired_txpower < 0)
2942 desired_pwr = INT_TO_Q52(0);
2943 else
2944 desired_pwr = INT_TO_Q52(phy->desired_txpower);
2945 /* And limit it. max_pwr already is Q5.2 */
2946 desired_pwr = clamp_val(desired_pwr, 0, max_pwr);
2947 if (b43_debug(dev, B43_DBG_XMITPOWER)) {
2948 b43dbg(dev->wl,
2949 "[TX power] current = " Q52_FMT
2950 " dBm, desired = " Q52_FMT
2951 " dBm, max = " Q52_FMT "\n",
2952 Q52_ARG(estimated_pwr),
2953 Q52_ARG(desired_pwr),
2954 Q52_ARG(max_pwr));
2955 }
2956
2957 /* Calculate the adjustment delta. */
2958 pwr_adjust = desired_pwr - estimated_pwr;
2959 if (pwr_adjust == 0)
2960 goto no_adjustment_needed;
2961
2962 /* RF attenuation delta. */
2963 rfatt_delta = ((pwr_adjust + 7) / 8);
2964 /* Lower attenuation => Bigger power output. Negate it. */
2965 rfatt_delta = -rfatt_delta;
2966
2967 /* Baseband attenuation delta. */
2968 bbatt_delta = pwr_adjust / 2;
2969 /* Lower attenuation => Bigger power output. Negate it. */
2970 bbatt_delta = -bbatt_delta;
2971 /* RF att affects power level 4 times as much as
2972 * Baseband attennuation. Subtract it. */
2973 bbatt_delta -= 4 * rfatt_delta;
2974
2975#if B43_DEBUG
2976 if (b43_debug(dev, B43_DBG_XMITPOWER)) {
2977 int dbm = pwr_adjust < 0 ? -pwr_adjust : pwr_adjust;
2978 b43dbg(dev->wl,
2979 "[TX power deltas] %s" Q52_FMT " dBm => "
2980 "bbatt-delta = %d, rfatt-delta = %d\n",
2981 (pwr_adjust < 0 ? "-" : ""), Q52_ARG(dbm),
2982 bbatt_delta, rfatt_delta);
2983 }
2984#endif /* DEBUG */
2985
2986 /* So do we finally need to adjust something in hardware? */
2987 if ((rfatt_delta == 0) && (bbatt_delta == 0))
2988 goto no_adjustment_needed;
2989
2990 /* Save the deltas for later when we adjust the power. */
2991 gphy->bbatt_delta = bbatt_delta;
2992 gphy->rfatt_delta = rfatt_delta;
2993
2994 /* We need to adjust the TX power on the device. */
2995 return B43_TXPWR_RES_NEED_ADJUST;
2996
2997no_adjustment_needed:
2998 return B43_TXPWR_RES_DONE;
2999}
3000
3001static void b43_gphy_op_pwork_15sec(struct b43_wldev *dev)
3002{
3003 struct b43_phy *phy = &dev->phy;
3004 struct b43_phy_g *gphy = phy->g;
3005
3006 b43_mac_suspend(dev);
3007 //TODO: update_aci_moving_average
3008 if (gphy->aci_enable && gphy->aci_wlan_automatic) {
3009 if (!gphy->aci_enable && 1 /*TODO: not scanning? */ ) {
3010 if (0 /*TODO: bunch of conditions */ ) {
3011 phy->ops->interf_mitigation(dev,
3012 B43_INTERFMODE_MANUALWLAN);
3013 }
3014 } else if (0 /*TODO*/) {
3015 if (/*(aci_average > 1000) &&*/ !b43_gphy_aci_scan(dev))
3016 phy->ops->interf_mitigation(dev, B43_INTERFMODE_NONE);
3017 }
3018 } else if (gphy->interfmode == B43_INTERFMODE_NONWLAN &&
3019 phy->rev == 1) {
3020 //TODO: implement rev1 workaround
3021 }
3022 b43_lo_g_maintenance_work(dev);
3023 b43_mac_enable(dev);
3024}
3025
3026static void b43_gphy_op_pwork_60sec(struct b43_wldev *dev)
3027{
3028 struct b43_phy *phy = &dev->phy;
3029
3030 if (!(dev->dev->bus_sprom->boardflags_lo & B43_BFL_RSSI))
3031 return;
3032
3033 b43_mac_suspend(dev);
3034 b43_calc_nrssi_slope(dev);
3035 if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 8)) {
3036 u8 old_chan = phy->channel;
3037
3038 /* VCO Calibration */
3039 if (old_chan >= 8)
3040 b43_switch_channel(dev, 1);
3041 else
3042 b43_switch_channel(dev, 13);
3043 b43_switch_channel(dev, old_chan);
3044 }
3045 b43_mac_enable(dev);
3046}
3047
3048const struct b43_phy_operations b43_phyops_g = {
3049 .allocate = b43_gphy_op_allocate,
3050 .free = b43_gphy_op_free,
3051 .prepare_structs = b43_gphy_op_prepare_structs,
3052 .prepare_hardware = b43_gphy_op_prepare_hardware,
3053 .init = b43_gphy_op_init,
3054 .exit = b43_gphy_op_exit,
3055 .phy_read = b43_gphy_op_read,
3056 .phy_write = b43_gphy_op_write,
3057 .radio_read = b43_gphy_op_radio_read,
3058 .radio_write = b43_gphy_op_radio_write,
3059 .supports_hwpctl = b43_gphy_op_supports_hwpctl,
3060 .software_rfkill = b43_gphy_op_software_rfkill,
3061 .switch_analog = b43_phyop_switch_analog_generic,
3062 .switch_channel = b43_gphy_op_switch_channel,
3063 .get_default_chan = b43_gphy_op_get_default_chan,
3064 .set_rx_antenna = b43_gphy_op_set_rx_antenna,
3065 .interf_mitigation = b43_gphy_op_interf_mitigation,
3066 .recalc_txpower = b43_gphy_op_recalc_txpower,
3067 .adjust_txpower = b43_gphy_op_adjust_txpower,
3068 .pwork_15sec = b43_gphy_op_pwork_15sec,
3069 .pwork_60sec = b43_gphy_op_pwork_60sec,
3070};