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OMAPDSS: VENC: fix NULL pointer dereference in DSS2 VENC sysfs debug attr on OMAP4
[zen-stable.git] / drivers / net / wireless / b43 / phy_g.c
blob12f467b8d564f1c5cdca06acbdf65ca8f80b48c8
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
35 #include <linux/bitrev.h>
36 #include <linux/slab.h>
37
38
39 static const s8 b43_tssi2dbm_g_table[] = {
40 77, 77, 77, 76,
41 76, 76, 75, 75,
42 74, 74, 73, 73,
43 73, 72, 72, 71,
44 71, 70, 70, 69,
45 68, 68, 67, 67,
46 66, 65, 65, 64,
47 63, 63, 62, 61,
48 60, 59, 58, 57,
49 56, 55, 54, 53,
50 52, 50, 49, 47,
51 45, 43, 40, 37,
52 33, 28, 22, 14,
53 5, -7, -20, -20,
54 -20, -20, -20, -20,
55 -20, -20, -20, -20,
56 };
57
58 static const u8 b43_radio_channel_codes_bg[] = {
59 12, 17, 22, 27,
60 32, 37, 42, 47,
61 52, 57, 62, 67,
62 72, 84,
63 };
64
65
66 static void b43_calc_nrssi_threshold(struct b43_wldev *dev);
67
68
69 #define bitrev4(tmp) (bitrev8(tmp) >> 4)
70
71
72 /* Get the freq, as it has to be written to the device. */
73 static inline u16 channel2freq_bg(u8 channel)
74 {
75 B43_WARN_ON(!(channel >= 1 && channel <= 14));
76
77 return b43_radio_channel_codes_bg[channel - 1];
78 }
79
80 static void generate_rfatt_list(struct b43_wldev *dev,
81 struct b43_rfatt_list *list)
82 {
83 struct b43_phy *phy = &dev->phy;
84
85 /* APHY.rev < 5 || GPHY.rev < 6 */
86 static const struct b43_rfatt rfatt_0[] = {
87 {.att = 3,.with_padmix = 0,},
88 {.att = 1,.with_padmix = 0,},
89 {.att = 5,.with_padmix = 0,},
90 {.att = 7,.with_padmix = 0,},
91 {.att = 9,.with_padmix = 0,},
92 {.att = 2,.with_padmix = 0,},
93 {.att = 0,.with_padmix = 0,},
94 {.att = 4,.with_padmix = 0,},
95 {.att = 6,.with_padmix = 0,},
96 {.att = 8,.with_padmix = 0,},
97 {.att = 1,.with_padmix = 1,},
98 {.att = 2,.with_padmix = 1,},
99 {.att = 3,.with_padmix = 1,},
100 {.att = 4,.with_padmix = 1,},
101 };
102 /* Radio.rev == 8 && Radio.version == 0x2050 */
103 static const struct b43_rfatt rfatt_1[] = {
104 {.att = 2,.with_padmix = 1,},
105 {.att = 4,.with_padmix = 1,},
106 {.att = 6,.with_padmix = 1,},
107 {.att = 8,.with_padmix = 1,},
108 {.att = 10,.with_padmix = 1,},
109 {.att = 12,.with_padmix = 1,},
110 {.att = 14,.with_padmix = 1,},
111 };
112 /* Otherwise */
113 static const struct b43_rfatt rfatt_2[] = {
114 {.att = 0,.with_padmix = 1,},
115 {.att = 2,.with_padmix = 1,},
116 {.att = 4,.with_padmix = 1,},
117 {.att = 6,.with_padmix = 1,},
118 {.att = 8,.with_padmix = 1,},
119 {.att = 9,.with_padmix = 1,},
120 {.att = 9,.with_padmix = 1,},
121 };
122
123 if (!b43_has_hardware_pctl(dev)) {
124 /* Software pctl */
125 list->list = rfatt_0;
126 list->len = ARRAY_SIZE(rfatt_0);
127 list->min_val = 0;
128 list->max_val = 9;
129 return;
130 }
131 if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
132 /* Hardware pctl */
133 list->list = rfatt_1;
134 list->len = ARRAY_SIZE(rfatt_1);
135 list->min_val = 0;
136 list->max_val = 14;
137 return;
138 }
139 /* Hardware pctl */
140 list->list = rfatt_2;
141 list->len = ARRAY_SIZE(rfatt_2);
142 list->min_val = 0;
143 list->max_val = 9;
144 }
145
146 static void generate_bbatt_list(struct b43_wldev *dev,
147 struct b43_bbatt_list *list)
148 {
149 static const struct b43_bbatt bbatt_0[] = {
150 {.att = 0,},
151 {.att = 1,},
152 {.att = 2,},
153 {.att = 3,},
154 {.att = 4,},
155 {.att = 5,},
156 {.att = 6,},
157 {.att = 7,},
158 {.att = 8,},
159 };
160
161 list->list = bbatt_0;
162 list->len = ARRAY_SIZE(bbatt_0);
163 list->min_val = 0;
164 list->max_val = 8;
165 }
166
167 static void b43_shm_clear_tssi(struct b43_wldev *dev)
168 {
169 b43_shm_write16(dev, B43_SHM_SHARED, 0x0058, 0x7F7F);
170 b43_shm_write16(dev, B43_SHM_SHARED, 0x005a, 0x7F7F);
171 b43_shm_write16(dev, B43_SHM_SHARED, 0x0070, 0x7F7F);
172 b43_shm_write16(dev, B43_SHM_SHARED, 0x0072, 0x7F7F);
173 }
174
175 /* Synthetic PU workaround */
176 static void b43_synth_pu_workaround(struct b43_wldev *dev, u8 channel)
177 {
178 struct b43_phy *phy = &dev->phy;
179
180 might_sleep();
181
182 if (phy->radio_ver != 0x2050 || phy->radio_rev >= 6) {
183 /* We do not need the workaround. */
184 return;
185 }
186
187 if (channel <= 10) {
188 b43_write16(dev, B43_MMIO_CHANNEL,
189 channel2freq_bg(channel + 4));
190 } else {
191 b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(1));
192 }
193 msleep(1);
194 b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel));
195 }
196
197 /* Set the baseband attenuation value on chip. */
198 void b43_gphy_set_baseband_attenuation(struct b43_wldev *dev,
199 u16 baseband_attenuation)
200 {
201 struct b43_phy *phy = &dev->phy;
202
203 if (phy->analog == 0) {
204 b43_write16(dev, B43_MMIO_PHY0, (b43_read16(dev, B43_MMIO_PHY0)
205 & 0xFFF0) |
206 baseband_attenuation);
207 } else if (phy->analog > 1) {
208 b43_phy_maskset(dev, B43_PHY_DACCTL, 0xFFC3, (baseband_attenuation << 2));
209 } else {
210 b43_phy_maskset(dev, B43_PHY_DACCTL, 0xFF87, (baseband_attenuation << 3));
211 }
212 }
213
214 /* Adjust the transmission power output (G-PHY) */
215 static void b43_set_txpower_g(struct b43_wldev *dev,
216 const struct b43_bbatt *bbatt,
217 const struct b43_rfatt *rfatt, u8 tx_control)
218 {
219 struct b43_phy *phy = &dev->phy;
220 struct b43_phy_g *gphy = phy->g;
221 struct b43_txpower_lo_control *lo = gphy->lo_control;
222 u16 bb, rf;
223 u16 tx_bias, tx_magn;
224
225 bb = bbatt->att;
226 rf = rfatt->att;
227 tx_bias = lo->tx_bias;
228 tx_magn = lo->tx_magn;
229 if (unlikely(tx_bias == 0xFF))
230 tx_bias = 0;
231
232 /* Save the values for later. Use memmove, because it's valid
233 * to pass &gphy->rfatt as rfatt pointer argument. Same for bbatt. */
234 gphy->tx_control = tx_control;
235 memmove(&gphy->rfatt, rfatt, sizeof(*rfatt));
236 gphy->rfatt.with_padmix = !!(tx_control & B43_TXCTL_TXMIX);
237 memmove(&gphy->bbatt, bbatt, sizeof(*bbatt));
238
239 if (b43_debug(dev, B43_DBG_XMITPOWER)) {
240 b43dbg(dev->wl, "Tuning TX-power to bbatt(%u), "
241 "rfatt(%u), tx_control(0x%02X), "
242 "tx_bias(0x%02X), tx_magn(0x%02X)\n",
243 bb, rf, tx_control, tx_bias, tx_magn);
244 }
245
246 b43_gphy_set_baseband_attenuation(dev, bb);
247 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_RFATT, rf);
248 if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
249 b43_radio_write16(dev, 0x43,
250 (rf & 0x000F) | (tx_control & 0x0070));
251 } else {
252 b43_radio_maskset(dev, 0x43, 0xFFF0, (rf & 0x000F));
253 b43_radio_maskset(dev, 0x52, ~0x0070, (tx_control & 0x0070));
254 }
255 if (has_tx_magnification(phy)) {
256 b43_radio_write16(dev, 0x52, tx_magn | tx_bias);
257 } else {
258 b43_radio_maskset(dev, 0x52, 0xFFF0, (tx_bias & 0x000F));
259 }
260 b43_lo_g_adjust(dev);
261 }
262
263 /* GPHY_TSSI_Power_Lookup_Table_Init */
264 static void b43_gphy_tssi_power_lt_init(struct b43_wldev *dev)
265 {
266 struct b43_phy_g *gphy = dev->phy.g;
267 int i;
268 u16 value;
269
270 for (i = 0; i < 32; i++)
271 b43_ofdmtab_write16(dev, 0x3C20, i, gphy->tssi2dbm[i]);
272 for (i = 32; i < 64; i++)
273 b43_ofdmtab_write16(dev, 0x3C00, i - 32, gphy->tssi2dbm[i]);
274 for (i = 0; i < 64; i += 2) {
275 value = (u16) gphy->tssi2dbm[i];
276 value |= ((u16) gphy->tssi2dbm[i + 1]) << 8;
277 b43_phy_write(dev, 0x380 + (i / 2), value);
278 }
279 }
280
281 /* GPHY_Gain_Lookup_Table_Init */
282 static void b43_gphy_gain_lt_init(struct b43_wldev *dev)
283 {
284 struct b43_phy *phy = &dev->phy;
285 struct b43_phy_g *gphy = phy->g;
286 struct b43_txpower_lo_control *lo = gphy->lo_control;
287 u16 nr_written = 0;
288 u16 tmp;
289 u8 rf, bb;
290
291 for (rf = 0; rf < lo->rfatt_list.len; rf++) {
292 for (bb = 0; bb < lo->bbatt_list.len; bb++) {
293 if (nr_written >= 0x40)
294 return;
295 tmp = lo->bbatt_list.list[bb].att;
296 tmp <<= 8;
297 if (phy->radio_rev == 8)
298 tmp |= 0x50;
299 else
300 tmp |= 0x40;
301 tmp |= lo->rfatt_list.list[rf].att;
302 b43_phy_write(dev, 0x3C0 + nr_written, tmp);
303 nr_written++;
304 }
305 }
306 }
307
308 static void b43_set_all_gains(struct b43_wldev *dev,
309 s16 first, s16 second, s16 third)
310 {
311 struct b43_phy *phy = &dev->phy;
312 u16 i;
313 u16 start = 0x08, end = 0x18;
314 u16 tmp;
315 u16 table;
316
317 if (phy->rev <= 1) {
318 start = 0x10;
319 end = 0x20;
320 }
321
322 table = B43_OFDMTAB_GAINX;
323 if (phy->rev <= 1)
324 table = B43_OFDMTAB_GAINX_R1;
325 for (i = 0; i < 4; i++)
326 b43_ofdmtab_write16(dev, table, i, first);
327
328 for (i = start; i < end; i++)
329 b43_ofdmtab_write16(dev, table, i, second);
330
331 if (third != -1) {
332 tmp = ((u16) third << 14) | ((u16) third << 6);
333 b43_phy_maskset(dev, 0x04A0, 0xBFBF, tmp);
334 b43_phy_maskset(dev, 0x04A1, 0xBFBF, tmp);
335 b43_phy_maskset(dev, 0x04A2, 0xBFBF, tmp);
336 }
337 b43_dummy_transmission(dev, false, true);
338 }
339
340 static void b43_set_original_gains(struct b43_wldev *dev)
341 {
342 struct b43_phy *phy = &dev->phy;
343 u16 i, tmp;
344 u16 table;
345 u16 start = 0x0008, end = 0x0018;
346
347 if (phy->rev <= 1) {
348 start = 0x0010;
349 end = 0x0020;
350 }
351
352 table = B43_OFDMTAB_GAINX;
353 if (phy->rev <= 1)
354 table = B43_OFDMTAB_GAINX_R1;
355 for (i = 0; i < 4; i++) {
356 tmp = (i & 0xFFFC);
357 tmp |= (i & 0x0001) << 1;
358 tmp |= (i & 0x0002) >> 1;
359
360 b43_ofdmtab_write16(dev, table, i, tmp);
361 }
362
363 for (i = start; i < end; i++)
364 b43_ofdmtab_write16(dev, table, i, i - start);
365
366 b43_phy_maskset(dev, 0x04A0, 0xBFBF, 0x4040);
367 b43_phy_maskset(dev, 0x04A1, 0xBFBF, 0x4040);
368 b43_phy_maskset(dev, 0x04A2, 0xBFBF, 0x4000);
369 b43_dummy_transmission(dev, false, true);
370 }
371
372 /* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
373 static void b43_nrssi_hw_write(struct b43_wldev *dev, u16 offset, s16 val)
374 {
375 b43_phy_write(dev, B43_PHY_NRSSILT_CTRL, offset);
376 b43_phy_write(dev, B43_PHY_NRSSILT_DATA, (u16) val);
377 }
378
379 /* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
380 static s16 b43_nrssi_hw_read(struct b43_wldev *dev, u16 offset)
381 {
382 u16 val;
383
384 b43_phy_write(dev, B43_PHY_NRSSILT_CTRL, offset);
385 val = b43_phy_read(dev, B43_PHY_NRSSILT_DATA);
386
387 return (s16) val;
388 }
389
390 /* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
391 static void b43_nrssi_hw_update(struct b43_wldev *dev, u16 val)
392 {
393 u16 i;
394 s16 tmp;
395
396 for (i = 0; i < 64; i++) {
397 tmp = b43_nrssi_hw_read(dev, i);
398 tmp -= val;
399 tmp = clamp_val(tmp, -32, 31);
400 b43_nrssi_hw_write(dev, i, tmp);
401 }
402 }
403
404 /* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
405 static void b43_nrssi_mem_update(struct b43_wldev *dev)
406 {
407 struct b43_phy_g *gphy = dev->phy.g;
408 s16 i, delta;
409 s32 tmp;
410
411 delta = 0x1F - gphy->nrssi[0];
412 for (i = 0; i < 64; i++) {
413 tmp = (i - delta) * gphy->nrssislope;
414 tmp /= 0x10000;
415 tmp += 0x3A;
416 tmp = clamp_val(tmp, 0, 0x3F);
417 gphy->nrssi_lt[i] = tmp;
418 }
419 }
420
421 static void b43_calc_nrssi_offset(struct b43_wldev *dev)
422 {
423 struct b43_phy *phy = &dev->phy;
424 u16 backup[20] = { 0 };
425 s16 v47F;
426 u16 i;
427 u16 saved = 0xFFFF;
428
429 backup[0] = b43_phy_read(dev, 0x0001);
430 backup[1] = b43_phy_read(dev, 0x0811);
431 backup[2] = b43_phy_read(dev, 0x0812);
432 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
433 backup[3] = b43_phy_read(dev, 0x0814);
434 backup[4] = b43_phy_read(dev, 0x0815);
435 }
436 backup[5] = b43_phy_read(dev, 0x005A);
437 backup[6] = b43_phy_read(dev, 0x0059);
438 backup[7] = b43_phy_read(dev, 0x0058);
439 backup[8] = b43_phy_read(dev, 0x000A);
440 backup[9] = b43_phy_read(dev, 0x0003);
441 backup[10] = b43_radio_read16(dev, 0x007A);
442 backup[11] = b43_radio_read16(dev, 0x0043);
443
444 b43_phy_mask(dev, 0x0429, 0x7FFF);
445 b43_phy_maskset(dev, 0x0001, 0x3FFF, 0x4000);
446 b43_phy_set(dev, 0x0811, 0x000C);
447 b43_phy_maskset(dev, 0x0812, 0xFFF3, 0x0004);
448 b43_phy_mask(dev, 0x0802, ~(0x1 | 0x2));
449 if (phy->rev >= 6) {
450 backup[12] = b43_phy_read(dev, 0x002E);
451 backup[13] = b43_phy_read(dev, 0x002F);
452 backup[14] = b43_phy_read(dev, 0x080F);
453 backup[15] = b43_phy_read(dev, 0x0810);
454 backup[16] = b43_phy_read(dev, 0x0801);
455 backup[17] = b43_phy_read(dev, 0x0060);
456 backup[18] = b43_phy_read(dev, 0x0014);
457 backup[19] = b43_phy_read(dev, 0x0478);
458
459 b43_phy_write(dev, 0x002E, 0);
460 b43_phy_write(dev, 0x002F, 0);
461 b43_phy_write(dev, 0x080F, 0);
462 b43_phy_write(dev, 0x0810, 0);
463 b43_phy_set(dev, 0x0478, 0x0100);
464 b43_phy_set(dev, 0x0801, 0x0040);
465 b43_phy_set(dev, 0x0060, 0x0040);
466 b43_phy_set(dev, 0x0014, 0x0200);
467 }
468 b43_radio_set(dev, 0x007A, 0x0070);
469 b43_radio_set(dev, 0x007A, 0x0080);
470 udelay(30);
471
472 v47F = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
473 if (v47F >= 0x20)
474 v47F -= 0x40;
475 if (v47F == 31) {
476 for (i = 7; i >= 4; i--) {
477 b43_radio_write16(dev, 0x007B, i);
478 udelay(20);
479 v47F =
480 (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
481 if (v47F >= 0x20)
482 v47F -= 0x40;
483 if (v47F < 31 && saved == 0xFFFF)
484 saved = i;
485 }
486 if (saved == 0xFFFF)
487 saved = 4;
488 } else {
489 b43_radio_mask(dev, 0x007A, 0x007F);
490 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
491 b43_phy_set(dev, 0x0814, 0x0001);
492 b43_phy_mask(dev, 0x0815, 0xFFFE);
493 }
494 b43_phy_set(dev, 0x0811, 0x000C);
495 b43_phy_set(dev, 0x0812, 0x000C);
496 b43_phy_set(dev, 0x0811, 0x0030);
497 b43_phy_set(dev, 0x0812, 0x0030);
498 b43_phy_write(dev, 0x005A, 0x0480);
499 b43_phy_write(dev, 0x0059, 0x0810);
500 b43_phy_write(dev, 0x0058, 0x000D);
501 if (phy->rev == 0) {
502 b43_phy_write(dev, 0x0003, 0x0122);
503 } else {
504 b43_phy_set(dev, 0x000A, 0x2000);
505 }
506 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
507 b43_phy_set(dev, 0x0814, 0x0004);
508 b43_phy_mask(dev, 0x0815, 0xFFFB);
509 }
510 b43_phy_maskset(dev, 0x0003, 0xFF9F, 0x0040);
511 b43_radio_set(dev, 0x007A, 0x000F);
512 b43_set_all_gains(dev, 3, 0, 1);
513 b43_radio_maskset(dev, 0x0043, 0x00F0, 0x000F);
514 udelay(30);
515 v47F = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
516 if (v47F >= 0x20)
517 v47F -= 0x40;
518 if (v47F == -32) {
519 for (i = 0; i < 4; i++) {
520 b43_radio_write16(dev, 0x007B, i);
521 udelay(20);
522 v47F =
523 (s16) ((b43_phy_read(dev, 0x047F) >> 8) &
524 0x003F);
525 if (v47F >= 0x20)
526 v47F -= 0x40;
527 if (v47F > -31 && saved == 0xFFFF)
528 saved = i;
529 }
530 if (saved == 0xFFFF)
531 saved = 3;
532 } else
533 saved = 0;
534 }
535 b43_radio_write16(dev, 0x007B, saved);
536
537 if (phy->rev >= 6) {
538 b43_phy_write(dev, 0x002E, backup[12]);
539 b43_phy_write(dev, 0x002F, backup[13]);
540 b43_phy_write(dev, 0x080F, backup[14]);
541 b43_phy_write(dev, 0x0810, backup[15]);
542 }
543 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
544 b43_phy_write(dev, 0x0814, backup[3]);
545 b43_phy_write(dev, 0x0815, backup[4]);
546 }
547 b43_phy_write(dev, 0x005A, backup[5]);
548 b43_phy_write(dev, 0x0059, backup[6]);
549 b43_phy_write(dev, 0x0058, backup[7]);
550 b43_phy_write(dev, 0x000A, backup[8]);
551 b43_phy_write(dev, 0x0003, backup[9]);
552 b43_radio_write16(dev, 0x0043, backup[11]);
553 b43_radio_write16(dev, 0x007A, backup[10]);
554 b43_phy_write(dev, 0x0802, b43_phy_read(dev, 0x0802) | 0x1 | 0x2);
555 b43_phy_set(dev, 0x0429, 0x8000);
556 b43_set_original_gains(dev);
557 if (phy->rev >= 6) {
558 b43_phy_write(dev, 0x0801, backup[16]);
559 b43_phy_write(dev, 0x0060, backup[17]);
560 b43_phy_write(dev, 0x0014, backup[18]);
561 b43_phy_write(dev, 0x0478, backup[19]);
562 }
563 b43_phy_write(dev, 0x0001, backup[0]);
564 b43_phy_write(dev, 0x0812, backup[2]);
565 b43_phy_write(dev, 0x0811, backup[1]);
566 }
567
568 static void b43_calc_nrssi_slope(struct b43_wldev *dev)
569 {
570 struct b43_phy *phy = &dev->phy;
571 struct b43_phy_g *gphy = phy->g;
572 u16 backup[18] = { 0 };
573 u16 tmp;
574 s16 nrssi0, nrssi1;
575
576 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
577
578 if (phy->radio_rev >= 9)
579 return;
580 if (phy->radio_rev == 8)
581 b43_calc_nrssi_offset(dev);
582
583 b43_phy_mask(dev, B43_PHY_G_CRS, 0x7FFF);
584 b43_phy_mask(dev, 0x0802, 0xFFFC);
585 backup[7] = b43_read16(dev, 0x03E2);
586 b43_write16(dev, 0x03E2, b43_read16(dev, 0x03E2) | 0x8000);
587 backup[0] = b43_radio_read16(dev, 0x007A);
588 backup[1] = b43_radio_read16(dev, 0x0052);
589 backup[2] = b43_radio_read16(dev, 0x0043);
590 backup[3] = b43_phy_read(dev, 0x0015);
591 backup[4] = b43_phy_read(dev, 0x005A);
592 backup[5] = b43_phy_read(dev, 0x0059);
593 backup[6] = b43_phy_read(dev, 0x0058);
594 backup[8] = b43_read16(dev, 0x03E6);
595 backup[9] = b43_read16(dev, B43_MMIO_CHANNEL_EXT);
596 if (phy->rev >= 3) {
597 backup[10] = b43_phy_read(dev, 0x002E);
598 backup[11] = b43_phy_read(dev, 0x002F);
599 backup[12] = b43_phy_read(dev, 0x080F);
600 backup[13] = b43_phy_read(dev, B43_PHY_G_LO_CONTROL);
601 backup[14] = b43_phy_read(dev, 0x0801);
602 backup[15] = b43_phy_read(dev, 0x0060);
603 backup[16] = b43_phy_read(dev, 0x0014);
604 backup[17] = b43_phy_read(dev, 0x0478);
605 b43_phy_write(dev, 0x002E, 0);
606 b43_phy_write(dev, B43_PHY_G_LO_CONTROL, 0);
607 switch (phy->rev) {
608 case 4:
609 case 6:
610 case 7:
611 b43_phy_set(dev, 0x0478, 0x0100);
612 b43_phy_set(dev, 0x0801, 0x0040);
613 break;
614 case 3:
615 case 5:
616 b43_phy_mask(dev, 0x0801, 0xFFBF);
617 break;
618 }
619 b43_phy_set(dev, 0x0060, 0x0040);
620 b43_phy_set(dev, 0x0014, 0x0200);
621 }
622 b43_radio_set(dev, 0x007A, 0x0070);
623 b43_set_all_gains(dev, 0, 8, 0);
624 b43_radio_mask(dev, 0x007A, 0x00F7);
625 if (phy->rev >= 2) {
626 b43_phy_maskset(dev, 0x0811, 0xFFCF, 0x0030);
627 b43_phy_maskset(dev, 0x0812, 0xFFCF, 0x0010);
628 }
629 b43_radio_set(dev, 0x007A, 0x0080);
630 udelay(20);
631
632 nrssi0 = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
633 if (nrssi0 >= 0x0020)
634 nrssi0 -= 0x0040;
635
636 b43_radio_mask(dev, 0x007A, 0x007F);
637 if (phy->rev >= 2) {
638 b43_phy_maskset(dev, 0x0003, 0xFF9F, 0x0040);
639 }
640
641 b43_write16(dev, B43_MMIO_CHANNEL_EXT,
642 b43_read16(dev, B43_MMIO_CHANNEL_EXT)
643 | 0x2000);
644 b43_radio_set(dev, 0x007A, 0x000F);
645 b43_phy_write(dev, 0x0015, 0xF330);
646 if (phy->rev >= 2) {
647 b43_phy_maskset(dev, 0x0812, 0xFFCF, 0x0020);
648 b43_phy_maskset(dev, 0x0811, 0xFFCF, 0x0020);
649 }
650
651 b43_set_all_gains(dev, 3, 0, 1);
652 if (phy->radio_rev == 8) {
653 b43_radio_write16(dev, 0x0043, 0x001F);
654 } else {
655 tmp = b43_radio_read16(dev, 0x0052) & 0xFF0F;
656 b43_radio_write16(dev, 0x0052, tmp | 0x0060);
657 tmp = b43_radio_read16(dev, 0x0043) & 0xFFF0;
658 b43_radio_write16(dev, 0x0043, tmp | 0x0009);
659 }
660 b43_phy_write(dev, 0x005A, 0x0480);
661 b43_phy_write(dev, 0x0059, 0x0810);
662 b43_phy_write(dev, 0x0058, 0x000D);
663 udelay(20);
664 nrssi1 = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
665 if (nrssi1 >= 0x0020)
666 nrssi1 -= 0x0040;
667 if (nrssi0 == nrssi1)
668 gphy->nrssislope = 0x00010000;
669 else
670 gphy->nrssislope = 0x00400000 / (nrssi0 - nrssi1);
671 if (nrssi0 >= -4) {
672 gphy->nrssi[0] = nrssi1;
673 gphy->nrssi[1] = nrssi0;
674 }
675 if (phy->rev >= 3) {
676 b43_phy_write(dev, 0x002E, backup[10]);
677 b43_phy_write(dev, 0x002F, backup[11]);
678 b43_phy_write(dev, 0x080F, backup[12]);
679 b43_phy_write(dev, B43_PHY_G_LO_CONTROL, backup[13]);
680 }
681 if (phy->rev >= 2) {
682 b43_phy_mask(dev, 0x0812, 0xFFCF);
683 b43_phy_mask(dev, 0x0811, 0xFFCF);
684 }
685
686 b43_radio_write16(dev, 0x007A, backup[0]);
687 b43_radio_write16(dev, 0x0052, backup[1]);
688 b43_radio_write16(dev, 0x0043, backup[2]);
689 b43_write16(dev, 0x03E2, backup[7]);
690 b43_write16(dev, 0x03E6, backup[8]);
691 b43_write16(dev, B43_MMIO_CHANNEL_EXT, backup[9]);
692 b43_phy_write(dev, 0x0015, backup[3]);
693 b43_phy_write(dev, 0x005A, backup[4]);
694 b43_phy_write(dev, 0x0059, backup[5]);
695 b43_phy_write(dev, 0x0058, backup[6]);
696 b43_synth_pu_workaround(dev, phy->channel);
697 b43_phy_set(dev, 0x0802, (0x0001 | 0x0002));
698 b43_set_original_gains(dev);
699 b43_phy_set(dev, B43_PHY_G_CRS, 0x8000);
700 if (phy->rev >= 3) {
701 b43_phy_write(dev, 0x0801, backup[14]);
702 b43_phy_write(dev, 0x0060, backup[15]);
703 b43_phy_write(dev, 0x0014, backup[16]);
704 b43_phy_write(dev, 0x0478, backup[17]);
705 }
706 b43_nrssi_mem_update(dev);
707 b43_calc_nrssi_threshold(dev);
708 }
709
710 static void b43_calc_nrssi_threshold(struct b43_wldev *dev)
711 {
712 struct b43_phy *phy = &dev->phy;
713 struct b43_phy_g *gphy = phy->g;
714 s32 a, b;
715 s16 tmp16;
716 u16 tmp_u16;
717
718 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
719
720 if (!phy->gmode ||
721 !(dev->dev->bus_sprom->boardflags_lo & B43_BFL_RSSI)) {
722 tmp16 = b43_nrssi_hw_read(dev, 0x20);
723 if (tmp16 >= 0x20)
724 tmp16 -= 0x40;
725 if (tmp16 < 3) {
726 b43_phy_maskset(dev, 0x048A, 0xF000, 0x09EB);
727 } else {
728 b43_phy_maskset(dev, 0x048A, 0xF000, 0x0AED);
729 }
730 } else {
731 if (gphy->interfmode == B43_INTERFMODE_NONWLAN) {
732 a = 0xE;
733 b = 0xA;
734 } else if (!gphy->aci_wlan_automatic && gphy->aci_enable) {
735 a = 0x13;
736 b = 0x12;
737 } else {
738 a = 0xE;
739 b = 0x11;
740 }
741
742 a = a * (gphy->nrssi[1] - gphy->nrssi[0]);
743 a += (gphy->nrssi[0] << 6);
744 if (a < 32)
745 a += 31;
746 else
747 a += 32;
748 a = a >> 6;
749 a = clamp_val(a, -31, 31);
750
751 b = b * (gphy->nrssi[1] - gphy->nrssi[0]);
752 b += (gphy->nrssi[0] << 6);
753 if (b < 32)
754 b += 31;
755 else
756 b += 32;
757 b = b >> 6;
758 b = clamp_val(b, -31, 31);
759
760 tmp_u16 = b43_phy_read(dev, 0x048A) & 0xF000;
761 tmp_u16 |= ((u32) b & 0x0000003F);
762 tmp_u16 |= (((u32) a & 0x0000003F) << 6);
763 b43_phy_write(dev, 0x048A, tmp_u16);
764 }
765 }
766
767 /* Stack implementation to save/restore values from the
768 * interference mitigation code.
769 * It is save to restore values in random order.
770 */
771 static void _stack_save(u32 *_stackptr, size_t *stackidx,
772 u8 id, u16 offset, u16 value)
773 {
774 u32 *stackptr = &(_stackptr[*stackidx]);
775
776 B43_WARN_ON(offset & 0xF000);
777 B43_WARN_ON(id & 0xF0);
778 *stackptr = offset;
779 *stackptr |= ((u32) id) << 12;
780 *stackptr |= ((u32) value) << 16;
781 (*stackidx)++;
782 B43_WARN_ON(*stackidx >= B43_INTERFSTACK_SIZE);
783 }
784
785 static u16 _stack_restore(u32 *stackptr, u8 id, u16 offset)
786 {
787 size_t i;
788
789 B43_WARN_ON(offset & 0xF000);
790 B43_WARN_ON(id & 0xF0);
791 for (i = 0; i < B43_INTERFSTACK_SIZE; i++, stackptr++) {
792 if ((*stackptr & 0x00000FFF) != offset)
793 continue;
794 if (((*stackptr & 0x0000F000) >> 12) != id)
795 continue;
796 return ((*stackptr & 0xFFFF0000) >> 16);
797 }
798 B43_WARN_ON(1);
799
800 return 0;
801 }
802
803 #define phy_stacksave(offset) \
804 do { \
805 _stack_save(stack, &stackidx, 0x1, (offset), \
806 b43_phy_read(dev, (offset))); \
807 } while (0)
808 #define phy_stackrestore(offset) \
809 do { \
810 b43_phy_write(dev, (offset), \
811 _stack_restore(stack, 0x1, \
812 (offset))); \
813 } while (0)
814 #define radio_stacksave(offset) \
815 do { \
816 _stack_save(stack, &stackidx, 0x2, (offset), \
817 b43_radio_read16(dev, (offset))); \
818 } while (0)
819 #define radio_stackrestore(offset) \
820 do { \
821 b43_radio_write16(dev, (offset), \
822 _stack_restore(stack, 0x2, \
823 (offset))); \
824 } while (0)
825 #define ofdmtab_stacksave(table, offset) \
826 do { \
827 _stack_save(stack, &stackidx, 0x3, (offset)|(table), \
828 b43_ofdmtab_read16(dev, (table), (offset))); \
829 } while (0)
830 #define ofdmtab_stackrestore(table, offset) \
831 do { \
832 b43_ofdmtab_write16(dev, (table), (offset), \
833 _stack_restore(stack, 0x3, \
834 (offset)|(table))); \
835 } while (0)
836
837 static void
838 b43_radio_interference_mitigation_enable(struct b43_wldev *dev, int mode)
839 {
840 struct b43_phy *phy = &dev->phy;
841 struct b43_phy_g *gphy = phy->g;
842 u16 tmp, flipped;
843 size_t stackidx = 0;
844 u32 *stack = gphy->interfstack;
845
846 switch (mode) {
847 case B43_INTERFMODE_NONWLAN:
848 if (phy->rev != 1) {
849 b43_phy_set(dev, 0x042B, 0x0800);
850 b43_phy_mask(dev, B43_PHY_G_CRS, ~0x4000);
851 break;
852 }
853 radio_stacksave(0x0078);
854 tmp = (b43_radio_read16(dev, 0x0078) & 0x001E);
855 B43_WARN_ON(tmp > 15);
856 flipped = bitrev4(tmp);
857 if (flipped < 10 && flipped >= 8)
858 flipped = 7;
859 else if (flipped >= 10)
860 flipped -= 3;
861 flipped = (bitrev4(flipped) << 1) | 0x0020;
862 b43_radio_write16(dev, 0x0078, flipped);
863
864 b43_calc_nrssi_threshold(dev);
865
866 phy_stacksave(0x0406);
867 b43_phy_write(dev, 0x0406, 0x7E28);
868
869 b43_phy_set(dev, 0x042B, 0x0800);
870 b43_phy_set(dev, B43_PHY_RADIO_BITFIELD, 0x1000);
871
872 phy_stacksave(0x04A0);
873 b43_phy_maskset(dev, 0x04A0, 0xC0C0, 0x0008);
874 phy_stacksave(0x04A1);
875 b43_phy_maskset(dev, 0x04A1, 0xC0C0, 0x0605);
876 phy_stacksave(0x04A2);
877 b43_phy_maskset(dev, 0x04A2, 0xC0C0, 0x0204);
878 phy_stacksave(0x04A8);
879 b43_phy_maskset(dev, 0x04A8, 0xC0C0, 0x0803);
880 phy_stacksave(0x04AB);
881 b43_phy_maskset(dev, 0x04AB, 0xC0C0, 0x0605);
882
883 phy_stacksave(0x04A7);
884 b43_phy_write(dev, 0x04A7, 0x0002);
885 phy_stacksave(0x04A3);
886 b43_phy_write(dev, 0x04A3, 0x287A);
887 phy_stacksave(0x04A9);
888 b43_phy_write(dev, 0x04A9, 0x2027);
889 phy_stacksave(0x0493);
890 b43_phy_write(dev, 0x0493, 0x32F5);
891 phy_stacksave(0x04AA);
892 b43_phy_write(dev, 0x04AA, 0x2027);
893 phy_stacksave(0x04AC);
894 b43_phy_write(dev, 0x04AC, 0x32F5);
895 break;
896 case B43_INTERFMODE_MANUALWLAN:
897 if (b43_phy_read(dev, 0x0033) & 0x0800)
898 break;
899
900 gphy->aci_enable = true;
901
902 phy_stacksave(B43_PHY_RADIO_BITFIELD);
903 phy_stacksave(B43_PHY_G_CRS);
904 if (phy->rev < 2) {
905 phy_stacksave(0x0406);
906 } else {
907 phy_stacksave(0x04C0);
908 phy_stacksave(0x04C1);
909 }
910 phy_stacksave(0x0033);
911 phy_stacksave(0x04A7);
912 phy_stacksave(0x04A3);
913 phy_stacksave(0x04A9);
914 phy_stacksave(0x04AA);
915 phy_stacksave(0x04AC);
916 phy_stacksave(0x0493);
917 phy_stacksave(0x04A1);
918 phy_stacksave(0x04A0);
919 phy_stacksave(0x04A2);
920 phy_stacksave(0x048A);
921 phy_stacksave(0x04A8);
922 phy_stacksave(0x04AB);
923 if (phy->rev == 2) {
924 phy_stacksave(0x04AD);
925 phy_stacksave(0x04AE);
926 } else if (phy->rev >= 3) {
927 phy_stacksave(0x04AD);
928 phy_stacksave(0x0415);
929 phy_stacksave(0x0416);
930 phy_stacksave(0x0417);
931 ofdmtab_stacksave(0x1A00, 0x2);
932 ofdmtab_stacksave(0x1A00, 0x3);
933 }
934 phy_stacksave(0x042B);
935 phy_stacksave(0x048C);
936
937 b43_phy_mask(dev, B43_PHY_RADIO_BITFIELD, ~0x1000);
938 b43_phy_maskset(dev, B43_PHY_G_CRS, 0xFFFC, 0x0002);
939
940 b43_phy_write(dev, 0x0033, 0x0800);
941 b43_phy_write(dev, 0x04A3, 0x2027);
942 b43_phy_write(dev, 0x04A9, 0x1CA8);
943 b43_phy_write(dev, 0x0493, 0x287A);
944 b43_phy_write(dev, 0x04AA, 0x1CA8);
945 b43_phy_write(dev, 0x04AC, 0x287A);
946
947 b43_phy_maskset(dev, 0x04A0, 0xFFC0, 0x001A);
948 b43_phy_write(dev, 0x04A7, 0x000D);
949
950 if (phy->rev < 2) {
951 b43_phy_write(dev, 0x0406, 0xFF0D);
952 } else if (phy->rev == 2) {
953 b43_phy_write(dev, 0x04C0, 0xFFFF);
954 b43_phy_write(dev, 0x04C1, 0x00A9);
955 } else {
956 b43_phy_write(dev, 0x04C0, 0x00C1);
957 b43_phy_write(dev, 0x04C1, 0x0059);
958 }
959
960 b43_phy_maskset(dev, 0x04A1, 0xC0FF, 0x1800);
961 b43_phy_maskset(dev, 0x04A1, 0xFFC0, 0x0015);
962 b43_phy_maskset(dev, 0x04A8, 0xCFFF, 0x1000);
963 b43_phy_maskset(dev, 0x04A8, 0xF0FF, 0x0A00);
964 b43_phy_maskset(dev, 0x04AB, 0xCFFF, 0x1000);
965 b43_phy_maskset(dev, 0x04AB, 0xF0FF, 0x0800);
966 b43_phy_maskset(dev, 0x04AB, 0xFFCF, 0x0010);
967 b43_phy_maskset(dev, 0x04AB, 0xFFF0, 0x0005);
968 b43_phy_maskset(dev, 0x04A8, 0xFFCF, 0x0010);
969 b43_phy_maskset(dev, 0x04A8, 0xFFF0, 0x0006);
970 b43_phy_maskset(dev, 0x04A2, 0xF0FF, 0x0800);
971 b43_phy_maskset(dev, 0x04A0, 0xF0FF, 0x0500);
972 b43_phy_maskset(dev, 0x04A2, 0xFFF0, 0x000B);
973
974 if (phy->rev >= 3) {
975 b43_phy_mask(dev, 0x048A, 0x7FFF);
976 b43_phy_maskset(dev, 0x0415, 0x8000, 0x36D8);
977 b43_phy_maskset(dev, 0x0416, 0x8000, 0x36D8);
978 b43_phy_maskset(dev, 0x0417, 0xFE00, 0x016D);
979 } else {
980 b43_phy_set(dev, 0x048A, 0x1000);
981 b43_phy_maskset(dev, 0x048A, 0x9FFF, 0x2000);
982 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_ACIW);
983 }
984 if (phy->rev >= 2) {
985 b43_phy_set(dev, 0x042B, 0x0800);
986 }
987 b43_phy_maskset(dev, 0x048C, 0xF0FF, 0x0200);
988 if (phy->rev == 2) {
989 b43_phy_maskset(dev, 0x04AE, 0xFF00, 0x007F);
990 b43_phy_maskset(dev, 0x04AD, 0x00FF, 0x1300);
991 } else if (phy->rev >= 6) {
992 b43_ofdmtab_write16(dev, 0x1A00, 0x3, 0x007F);
993 b43_ofdmtab_write16(dev, 0x1A00, 0x2, 0x007F);
994 b43_phy_mask(dev, 0x04AD, 0x00FF);
995 }
996 b43_calc_nrssi_slope(dev);
997 break;
998 default:
999 B43_WARN_ON(1);
1000 }
1001 }
1002
1003 static void
1004 b43_radio_interference_mitigation_disable(struct b43_wldev *dev, int mode)
1005 {
1006 struct b43_phy *phy = &dev->phy;
1007 struct b43_phy_g *gphy = phy->g;
1008 u32 *stack = gphy->interfstack;
1009
1010 switch (mode) {
1011 case B43_INTERFMODE_NONWLAN:
1012 if (phy->rev != 1) {
1013 b43_phy_mask(dev, 0x042B, ~0x0800);
1014 b43_phy_set(dev, B43_PHY_G_CRS, 0x4000);
1015 break;
1016 }
1017 radio_stackrestore(0x0078);
1018 b43_calc_nrssi_threshold(dev);
1019 phy_stackrestore(0x0406);
1020 b43_phy_mask(dev, 0x042B, ~0x0800);
1021 if (!dev->bad_frames_preempt) {
1022 b43_phy_mask(dev, B43_PHY_RADIO_BITFIELD, ~(1 << 11));
1023 }
1024 b43_phy_set(dev, B43_PHY_G_CRS, 0x4000);
1025 phy_stackrestore(0x04A0);
1026 phy_stackrestore(0x04A1);
1027 phy_stackrestore(0x04A2);
1028 phy_stackrestore(0x04A8);
1029 phy_stackrestore(0x04AB);
1030 phy_stackrestore(0x04A7);
1031 phy_stackrestore(0x04A3);
1032 phy_stackrestore(0x04A9);
1033 phy_stackrestore(0x0493);
1034 phy_stackrestore(0x04AA);
1035 phy_stackrestore(0x04AC);
1036 break;
1037 case B43_INTERFMODE_MANUALWLAN:
1038 if (!(b43_phy_read(dev, 0x0033) & 0x0800))
1039 break;
1040
1041 gphy->aci_enable = false;
1042
1043 phy_stackrestore(B43_PHY_RADIO_BITFIELD);
1044 phy_stackrestore(B43_PHY_G_CRS);
1045 phy_stackrestore(0x0033);
1046 phy_stackrestore(0x04A3);
1047 phy_stackrestore(0x04A9);
1048 phy_stackrestore(0x0493);
1049 phy_stackrestore(0x04AA);
1050 phy_stackrestore(0x04AC);
1051 phy_stackrestore(0x04A0);
1052 phy_stackrestore(0x04A7);
1053 if (phy->rev >= 2) {
1054 phy_stackrestore(0x04C0);
1055 phy_stackrestore(0x04C1);
1056 } else
1057 phy_stackrestore(0x0406);
1058 phy_stackrestore(0x04A1);
1059 phy_stackrestore(0x04AB);
1060 phy_stackrestore(0x04A8);
1061 if (phy->rev == 2) {
1062 phy_stackrestore(0x04AD);
1063 phy_stackrestore(0x04AE);
1064 } else if (phy->rev >= 3) {
1065 phy_stackrestore(0x04AD);
1066 phy_stackrestore(0x0415);
1067 phy_stackrestore(0x0416);
1068 phy_stackrestore(0x0417);
1069 ofdmtab_stackrestore(0x1A00, 0x2);
1070 ofdmtab_stackrestore(0x1A00, 0x3);
1071 }
1072 phy_stackrestore(0x04A2);
1073 phy_stackrestore(0x048A);
1074 phy_stackrestore(0x042B);
1075 phy_stackrestore(0x048C);
1076 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_ACIW);
1077 b43_calc_nrssi_slope(dev);
1078 break;
1079 default:
1080 B43_WARN_ON(1);
1081 }
1082 }
1083
1084 #undef phy_stacksave
1085 #undef phy_stackrestore
1086 #undef radio_stacksave
1087 #undef radio_stackrestore
1088 #undef ofdmtab_stacksave
1089 #undef ofdmtab_stackrestore
1090
1091 static u16 b43_radio_core_calibration_value(struct b43_wldev *dev)
1092 {
1093 u16 reg, index, ret;
1094
1095 static const u8 rcc_table[] = {
1096 0x02, 0x03, 0x01, 0x0F,
1097 0x06, 0x07, 0x05, 0x0F,
1098 0x0A, 0x0B, 0x09, 0x0F,
1099 0x0E, 0x0F, 0x0D, 0x0F,
1100 };
1101
1102 reg = b43_radio_read16(dev, 0x60);
1103 index = (reg & 0x001E) >> 1;
1104 ret = rcc_table[index] << 1;
1105 ret |= (reg & 0x0001);
1106 ret |= 0x0020;
1107
1108 return ret;
1109 }
1110
1111 #define LPD(L, P, D) (((L) << 2) | ((P) << 1) | ((D) << 0))
1112 static u16 radio2050_rfover_val(struct b43_wldev *dev,
1113 u16 phy_register, unsigned int lpd)
1114 {
1115 struct b43_phy *phy = &dev->phy;
1116 struct b43_phy_g *gphy = phy->g;
1117 struct ssb_sprom *sprom = dev->dev->bus_sprom;
1118
1119 if (!phy->gmode)
1120 return 0;
1121
1122 if (has_loopback_gain(phy)) {
1123 int max_lb_gain = gphy->max_lb_gain;
1124 u16 extlna;
1125 u16 i;
1126
1127 if (phy->radio_rev == 8)
1128 max_lb_gain += 0x3E;
1129 else
1130 max_lb_gain += 0x26;
1131 if (max_lb_gain >= 0x46) {
1132 extlna = 0x3000;
1133 max_lb_gain -= 0x46;
1134 } else if (max_lb_gain >= 0x3A) {
1135 extlna = 0x1000;
1136 max_lb_gain -= 0x3A;
1137 } else if (max_lb_gain >= 0x2E) {
1138 extlna = 0x2000;
1139 max_lb_gain -= 0x2E;
1140 } else {
1141 extlna = 0;
1142 max_lb_gain -= 0x10;
1143 }
1144
1145 for (i = 0; i < 16; i++) {
1146 max_lb_gain -= (i * 6);
1147 if (max_lb_gain < 6)
1148 break;
1149 }
1150
1151 if ((phy->rev < 7) ||
1152 !(sprom->boardflags_lo & B43_BFL_EXTLNA)) {
1153 if (phy_register == B43_PHY_RFOVER) {
1154 return 0x1B3;
1155 } else if (phy_register == B43_PHY_RFOVERVAL) {
1156 extlna |= (i << 8);
1157 switch (lpd) {
1158 case LPD(0, 1, 1):
1159 return 0x0F92;
1160 case LPD(0, 0, 1):
1161 case LPD(1, 0, 1):
1162 return (0x0092 | extlna);
1163 case LPD(1, 0, 0):
1164 return (0x0093 | extlna);
1165 }
1166 B43_WARN_ON(1);
1167 }
1168 B43_WARN_ON(1);
1169 } else {
1170 if (phy_register == B43_PHY_RFOVER) {
1171 return 0x9B3;
1172 } else if (phy_register == B43_PHY_RFOVERVAL) {
1173 if (extlna)
1174 extlna |= 0x8000;
1175 extlna |= (i << 8);
1176 switch (lpd) {
1177 case LPD(0, 1, 1):
1178 return 0x8F92;
1179 case LPD(0, 0, 1):
1180 return (0x8092 | extlna);
1181 case LPD(1, 0, 1):
1182 return (0x2092 | extlna);
1183 case LPD(1, 0, 0):
1184 return (0x2093 | extlna);
1185 }
1186 B43_WARN_ON(1);
1187 }
1188 B43_WARN_ON(1);
1189 }
1190 } else {
1191 if ((phy->rev < 7) ||
1192 !(sprom->boardflags_lo & B43_BFL_EXTLNA)) {
1193 if (phy_register == B43_PHY_RFOVER) {
1194 return 0x1B3;
1195 } else if (phy_register == B43_PHY_RFOVERVAL) {
1196 switch (lpd) {
1197 case LPD(0, 1, 1):
1198 return 0x0FB2;
1199 case LPD(0, 0, 1):
1200 return 0x00B2;
1201 case LPD(1, 0, 1):
1202 return 0x30B2;
1203 case LPD(1, 0, 0):
1204 return 0x30B3;
1205 }
1206 B43_WARN_ON(1);
1207 }
1208 B43_WARN_ON(1);
1209 } else {
1210 if (phy_register == B43_PHY_RFOVER) {
1211 return 0x9B3;
1212 } else if (phy_register == B43_PHY_RFOVERVAL) {
1213 switch (lpd) {
1214 case LPD(0, 1, 1):
1215 return 0x8FB2;
1216 case LPD(0, 0, 1):
1217 return 0x80B2;
1218 case LPD(1, 0, 1):
1219 return 0x20B2;
1220 case LPD(1, 0, 0):
1221 return 0x20B3;
1222 }
1223 B43_WARN_ON(1);
1224 }
1225 B43_WARN_ON(1);
1226 }
1227 }
1228 return 0;
1229 }
1230
1231 struct init2050_saved_values {
1232 /* Core registers */
1233 u16 reg_3EC;
1234 u16 reg_3E6;
1235 u16 reg_3F4;
1236 /* Radio registers */
1237 u16 radio_43;
1238 u16 radio_51;
1239 u16 radio_52;
1240 /* PHY registers */
1241 u16 phy_pgactl;
1242 u16 phy_cck_5A;
1243 u16 phy_cck_59;
1244 u16 phy_cck_58;
1245 u16 phy_cck_30;
1246 u16 phy_rfover;
1247 u16 phy_rfoverval;
1248 u16 phy_analogover;
1249 u16 phy_analogoverval;
1250 u16 phy_crs0;
1251 u16 phy_classctl;
1252 u16 phy_lo_mask;
1253 u16 phy_lo_ctl;
1254 u16 phy_syncctl;
1255 };
1256
1257 static u16 b43_radio_init2050(struct b43_wldev *dev)
1258 {
1259 struct b43_phy *phy = &dev->phy;
1260 struct init2050_saved_values sav;
1261 u16 rcc;
1262 u16 radio78;
1263 u16 ret;
1264 u16 i, j;
1265 u32 tmp1 = 0, tmp2 = 0;
1266
1267 memset(&sav, 0, sizeof(sav)); /* get rid of "may be used uninitialized..." */
1268
1269 sav.radio_43 = b43_radio_read16(dev, 0x43);
1270 sav.radio_51 = b43_radio_read16(dev, 0x51);
1271 sav.radio_52 = b43_radio_read16(dev, 0x52);
1272 sav.phy_pgactl = b43_phy_read(dev, B43_PHY_PGACTL);
1273 sav.phy_cck_5A = b43_phy_read(dev, B43_PHY_CCK(0x5A));
1274 sav.phy_cck_59 = b43_phy_read(dev, B43_PHY_CCK(0x59));
1275 sav.phy_cck_58 = b43_phy_read(dev, B43_PHY_CCK(0x58));
1276
1277 if (phy->type == B43_PHYTYPE_B) {
1278 sav.phy_cck_30 = b43_phy_read(dev, B43_PHY_CCK(0x30));
1279 sav.reg_3EC = b43_read16(dev, 0x3EC);
1280
1281 b43_phy_write(dev, B43_PHY_CCK(0x30), 0xFF);
1282 b43_write16(dev, 0x3EC, 0x3F3F);
1283 } else if (phy->gmode || phy->rev >= 2) {
1284 sav.phy_rfover = b43_phy_read(dev, B43_PHY_RFOVER);
1285 sav.phy_rfoverval = b43_phy_read(dev, B43_PHY_RFOVERVAL);
1286 sav.phy_analogover = b43_phy_read(dev, B43_PHY_ANALOGOVER);
1287 sav.phy_analogoverval =
1288 b43_phy_read(dev, B43_PHY_ANALOGOVERVAL);
1289 sav.phy_crs0 = b43_phy_read(dev, B43_PHY_CRS0);
1290 sav.phy_classctl = b43_phy_read(dev, B43_PHY_CLASSCTL);
1291
1292 b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0003);
1293 b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFC);
1294 b43_phy_mask(dev, B43_PHY_CRS0, 0x7FFF);
1295 b43_phy_mask(dev, B43_PHY_CLASSCTL, 0xFFFC);
1296 if (has_loopback_gain(phy)) {
1297 sav.phy_lo_mask = b43_phy_read(dev, B43_PHY_LO_MASK);
1298 sav.phy_lo_ctl = b43_phy_read(dev, B43_PHY_LO_CTL);
1299
1300 if (phy->rev >= 3)
1301 b43_phy_write(dev, B43_PHY_LO_MASK, 0xC020);
1302 else
1303 b43_phy_write(dev, B43_PHY_LO_MASK, 0x8020);
1304 b43_phy_write(dev, B43_PHY_LO_CTL, 0);
1305 }
1306
1307 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1308 radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
1309 LPD(0, 1, 1)));
1310 b43_phy_write(dev, B43_PHY_RFOVER,
1311 radio2050_rfover_val(dev, B43_PHY_RFOVER, 0));
1312 }
1313 b43_write16(dev, 0x3E2, b43_read16(dev, 0x3E2) | 0x8000);
1314
1315 sav.phy_syncctl = b43_phy_read(dev, B43_PHY_SYNCCTL);
1316 b43_phy_mask(dev, B43_PHY_SYNCCTL, 0xFF7F);
1317 sav.reg_3E6 = b43_read16(dev, 0x3E6);
1318 sav.reg_3F4 = b43_read16(dev, 0x3F4);
1319
1320 if (phy->analog == 0) {
1321 b43_write16(dev, 0x03E6, 0x0122);
1322 } else {
1323 if (phy->analog >= 2) {
1324 b43_phy_maskset(dev, B43_PHY_CCK(0x03), 0xFFBF, 0x40);
1325 }
1326 b43_write16(dev, B43_MMIO_CHANNEL_EXT,
1327 (b43_read16(dev, B43_MMIO_CHANNEL_EXT) | 0x2000));
1328 }
1329
1330 rcc = b43_radio_core_calibration_value(dev);
1331
1332 if (phy->type == B43_PHYTYPE_B)
1333 b43_radio_write16(dev, 0x78, 0x26);
1334 if (phy->gmode || phy->rev >= 2) {
1335 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1336 radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
1337 LPD(0, 1, 1)));
1338 }
1339 b43_phy_write(dev, B43_PHY_PGACTL, 0xBFAF);
1340 b43_phy_write(dev, B43_PHY_CCK(0x2B), 0x1403);
1341 if (phy->gmode || phy->rev >= 2) {
1342 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1343 radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
1344 LPD(0, 0, 1)));
1345 }
1346 b43_phy_write(dev, B43_PHY_PGACTL, 0xBFA0);
1347 b43_radio_set(dev, 0x51, 0x0004);
1348 if (phy->radio_rev == 8) {
1349 b43_radio_write16(dev, 0x43, 0x1F);
1350 } else {
1351 b43_radio_write16(dev, 0x52, 0);
1352 b43_radio_maskset(dev, 0x43, 0xFFF0, 0x0009);
1353 }
1354 b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
1355
1356 for (i = 0; i < 16; i++) {
1357 b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0480);
1358 b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
1359 b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
1360 if (phy->gmode || phy->rev >= 2) {
1361 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1362 radio2050_rfover_val(dev,
1363 B43_PHY_RFOVERVAL,
1364 LPD(1, 0, 1)));
1365 }
1366 b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
1367 udelay(10);
1368 if (phy->gmode || phy->rev >= 2) {
1369 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1370 radio2050_rfover_val(dev,
1371 B43_PHY_RFOVERVAL,
1372 LPD(1, 0, 1)));
1373 }
1374 b43_phy_write(dev, B43_PHY_PGACTL, 0xEFB0);
1375 udelay(10);
1376 if (phy->gmode || phy->rev >= 2) {
1377 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1378 radio2050_rfover_val(dev,
1379 B43_PHY_RFOVERVAL,
1380 LPD(1, 0, 0)));
1381 }
1382 b43_phy_write(dev, B43_PHY_PGACTL, 0xFFF0);
1383 udelay(20);
1384 tmp1 += b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
1385 b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
1386 if (phy->gmode || phy->rev >= 2) {
1387 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1388 radio2050_rfover_val(dev,
1389 B43_PHY_RFOVERVAL,
1390 LPD(1, 0, 1)));
1391 }
1392 b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
1393 }
1394 udelay(10);
1395
1396 b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
1397 tmp1++;
1398 tmp1 >>= 9;
1399
1400 for (i = 0; i < 16; i++) {
1401 radio78 = (bitrev4(i) << 1) | 0x0020;
1402 b43_radio_write16(dev, 0x78, radio78);
1403 udelay(10);
1404 for (j = 0; j < 16; j++) {
1405 b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0D80);
1406 b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
1407 b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
1408 if (phy->gmode || phy->rev >= 2) {
1409 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1410 radio2050_rfover_val(dev,
1411 B43_PHY_RFOVERVAL,
1412 LPD(1, 0,
1413 1)));
1414 }
1415 b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
1416 udelay(10);
1417 if (phy->gmode || phy->rev >= 2) {
1418 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1419 radio2050_rfover_val(dev,
1420 B43_PHY_RFOVERVAL,
1421 LPD(1, 0,
1422 1)));
1423 }
1424 b43_phy_write(dev, B43_PHY_PGACTL, 0xEFB0);
1425 udelay(10);
1426 if (phy->gmode || phy->rev >= 2) {
1427 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1428 radio2050_rfover_val(dev,
1429 B43_PHY_RFOVERVAL,
1430 LPD(1, 0,
1431 0)));
1432 }
1433 b43_phy_write(dev, B43_PHY_PGACTL, 0xFFF0);
1434 udelay(10);
1435 tmp2 += b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
1436 b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
1437 if (phy->gmode || phy->rev >= 2) {
1438 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1439 radio2050_rfover_val(dev,
1440 B43_PHY_RFOVERVAL,
1441 LPD(1, 0,
1442 1)));
1443 }
1444 b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
1445 }
1446 tmp2++;
1447 tmp2 >>= 8;
1448 if (tmp1 < tmp2)
1449 break;
1450 }
1451
1452 /* Restore the registers */
1453 b43_phy_write(dev, B43_PHY_PGACTL, sav.phy_pgactl);
1454 b43_radio_write16(dev, 0x51, sav.radio_51);
1455 b43_radio_write16(dev, 0x52, sav.radio_52);
1456 b43_radio_write16(dev, 0x43, sav.radio_43);
1457 b43_phy_write(dev, B43_PHY_CCK(0x5A), sav.phy_cck_5A);
1458 b43_phy_write(dev, B43_PHY_CCK(0x59), sav.phy_cck_59);
1459 b43_phy_write(dev, B43_PHY_CCK(0x58), sav.phy_cck_58);
1460 b43_write16(dev, 0x3E6, sav.reg_3E6);
1461 if (phy->analog != 0)
1462 b43_write16(dev, 0x3F4, sav.reg_3F4);
1463 b43_phy_write(dev, B43_PHY_SYNCCTL, sav.phy_syncctl);
1464 b43_synth_pu_workaround(dev, phy->channel);
1465 if (phy->type == B43_PHYTYPE_B) {
1466 b43_phy_write(dev, B43_PHY_CCK(0x30), sav.phy_cck_30);
1467 b43_write16(dev, 0x3EC, sav.reg_3EC);
1468 } else if (phy->gmode) {
1469 b43_write16(dev, B43_MMIO_PHY_RADIO,
1470 b43_read16(dev, B43_MMIO_PHY_RADIO)
1471 & 0x7FFF);
1472 b43_phy_write(dev, B43_PHY_RFOVER, sav.phy_rfover);
1473 b43_phy_write(dev, B43_PHY_RFOVERVAL, sav.phy_rfoverval);
1474 b43_phy_write(dev, B43_PHY_ANALOGOVER, sav.phy_analogover);
1475 b43_phy_write(dev, B43_PHY_ANALOGOVERVAL,
1476 sav.phy_analogoverval);
1477 b43_phy_write(dev, B43_PHY_CRS0, sav.phy_crs0);
1478 b43_phy_write(dev, B43_PHY_CLASSCTL, sav.phy_classctl);
1479 if (has_loopback_gain(phy)) {
1480 b43_phy_write(dev, B43_PHY_LO_MASK, sav.phy_lo_mask);
1481 b43_phy_write(dev, B43_PHY_LO_CTL, sav.phy_lo_ctl);
1482 }
1483 }
1484 if (i > 15)
1485 ret = radio78;
1486 else
1487 ret = rcc;
1488
1489 return ret;
1490 }
1491
1492 static void b43_phy_initb5(struct b43_wldev *dev)
1493 {
1494 struct b43_phy *phy = &dev->phy;
1495 struct b43_phy_g *gphy = phy->g;
1496 u16 offset, value;
1497 u8 old_channel;
1498
1499 if (phy->analog == 1) {
1500 b43_radio_set(dev, 0x007A, 0x0050);
1501 }
1502 if ((dev->dev->board_vendor != SSB_BOARDVENDOR_BCM) &&
1503 (dev->dev->board_type != SSB_BOARD_BU4306)) {
1504 value = 0x2120;
1505 for (offset = 0x00A8; offset < 0x00C7; offset++) {
1506 b43_phy_write(dev, offset, value);
1507 value += 0x202;
1508 }
1509 }
1510 b43_phy_maskset(dev, 0x0035, 0xF0FF, 0x0700);
1511 if (phy->radio_ver == 0x2050)
1512 b43_phy_write(dev, 0x0038, 0x0667);
1513
1514 if (phy->gmode || phy->rev >= 2) {
1515 if (phy->radio_ver == 0x2050) {
1516 b43_radio_set(dev, 0x007A, 0x0020);
1517 b43_radio_set(dev, 0x0051, 0x0004);
1518 }
1519 b43_write16(dev, B43_MMIO_PHY_RADIO, 0x0000);
1520
1521 b43_phy_set(dev, 0x0802, 0x0100);
1522 b43_phy_set(dev, 0x042B, 0x2000);
1523
1524 b43_phy_write(dev, 0x001C, 0x186A);
1525
1526 b43_phy_maskset(dev, 0x0013, 0x00FF, 0x1900);
1527 b43_phy_maskset(dev, 0x0035, 0xFFC0, 0x0064);
1528 b43_phy_maskset(dev, 0x005D, 0xFF80, 0x000A);
1529 }
1530
1531 if (dev->bad_frames_preempt) {
1532 b43_phy_set(dev, B43_PHY_RADIO_BITFIELD, (1 << 11));
1533 }
1534
1535 if (phy->analog == 1) {
1536 b43_phy_write(dev, 0x0026, 0xCE00);
1537 b43_phy_write(dev, 0x0021, 0x3763);
1538 b43_phy_write(dev, 0x0022, 0x1BC3);
1539 b43_phy_write(dev, 0x0023, 0x06F9);
1540 b43_phy_write(dev, 0x0024, 0x037E);
1541 } else
1542 b43_phy_write(dev, 0x0026, 0xCC00);
1543 b43_phy_write(dev, 0x0030, 0x00C6);
1544 b43_write16(dev, 0x03EC, 0x3F22);
1545
1546 if (phy->analog == 1)
1547 b43_phy_write(dev, 0x0020, 0x3E1C);
1548 else
1549 b43_phy_write(dev, 0x0020, 0x301C);
1550
1551 if (phy->analog == 0)
1552 b43_write16(dev, 0x03E4, 0x3000);
1553
1554 old_channel = phy->channel;
1555 /* Force to channel 7, even if not supported. */
1556 b43_gphy_channel_switch(dev, 7, 0);
1557
1558 if (phy->radio_ver != 0x2050) {
1559 b43_radio_write16(dev, 0x0075, 0x0080);
1560 b43_radio_write16(dev, 0x0079, 0x0081);
1561 }
1562
1563 b43_radio_write16(dev, 0x0050, 0x0020);
1564 b43_radio_write16(dev, 0x0050, 0x0023);
1565
1566 if (phy->radio_ver == 0x2050) {
1567 b43_radio_write16(dev, 0x0050, 0x0020);
1568 b43_radio_write16(dev, 0x005A, 0x0070);
1569 }
1570
1571 b43_radio_write16(dev, 0x005B, 0x007B);
1572 b43_radio_write16(dev, 0x005C, 0x00B0);
1573
1574 b43_radio_set(dev, 0x007A, 0x0007);
1575
1576 b43_gphy_channel_switch(dev, old_channel, 0);
1577
1578 b43_phy_write(dev, 0x0014, 0x0080);
1579 b43_phy_write(dev, 0x0032, 0x00CA);
1580 b43_phy_write(dev, 0x002A, 0x88A3);
1581
1582 b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt, gphy->tx_control);
1583
1584 if (phy->radio_ver == 0x2050)
1585 b43_radio_write16(dev, 0x005D, 0x000D);
1586
1587 b43_write16(dev, 0x03E4, (b43_read16(dev, 0x03E4) & 0xFFC0) | 0x0004);
1588 }
1589
1590 static void b43_phy_initb6(struct b43_wldev *dev)
1591 {
1592 struct b43_phy *phy = &dev->phy;
1593 struct b43_phy_g *gphy = phy->g;
1594 u16 offset, val;
1595 u8 old_channel;
1596
1597 b43_phy_write(dev, 0x003E, 0x817A);
1598 b43_radio_write16(dev, 0x007A,
1599 (b43_radio_read16(dev, 0x007A) | 0x0058));
1600 if (phy->radio_rev == 4 || phy->radio_rev == 5) {
1601 b43_radio_write16(dev, 0x51, 0x37);
1602 b43_radio_write16(dev, 0x52, 0x70);
1603 b43_radio_write16(dev, 0x53, 0xB3);
1604 b43_radio_write16(dev, 0x54, 0x9B);
1605 b43_radio_write16(dev, 0x5A, 0x88);
1606 b43_radio_write16(dev, 0x5B, 0x88);
1607 b43_radio_write16(dev, 0x5D, 0x88);
1608 b43_radio_write16(dev, 0x5E, 0x88);
1609 b43_radio_write16(dev, 0x7D, 0x88);
1610 b43_hf_write(dev, b43_hf_read(dev)
1611 | B43_HF_TSSIRPSMW);
1612 }
1613 B43_WARN_ON(phy->radio_rev == 6 || phy->radio_rev == 7); /* We had code for these revs here... */
1614 if (phy->radio_rev == 8) {
1615 b43_radio_write16(dev, 0x51, 0);
1616 b43_radio_write16(dev, 0x52, 0x40);
1617 b43_radio_write16(dev, 0x53, 0xB7);
1618 b43_radio_write16(dev, 0x54, 0x98);
1619 b43_radio_write16(dev, 0x5A, 0x88);
1620 b43_radio_write16(dev, 0x5B, 0x6B);
1621 b43_radio_write16(dev, 0x5C, 0x0F);
1622 if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_ALTIQ) {
1623 b43_radio_write16(dev, 0x5D, 0xFA);
1624 b43_radio_write16(dev, 0x5E, 0xD8);
1625 } else {
1626 b43_radio_write16(dev, 0x5D, 0xF5);
1627 b43_radio_write16(dev, 0x5E, 0xB8);
1628 }
1629 b43_radio_write16(dev, 0x0073, 0x0003);
1630 b43_radio_write16(dev, 0x007D, 0x00A8);
1631 b43_radio_write16(dev, 0x007C, 0x0001);
1632 b43_radio_write16(dev, 0x007E, 0x0008);
1633 }
1634 val = 0x1E1F;
1635 for (offset = 0x0088; offset < 0x0098; offset++) {
1636 b43_phy_write(dev, offset, val);
1637 val -= 0x0202;
1638 }
1639 val = 0x3E3F;
1640 for (offset = 0x0098; offset < 0x00A8; offset++) {
1641 b43_phy_write(dev, offset, val);
1642 val -= 0x0202;
1643 }
1644 val = 0x2120;
1645 for (offset = 0x00A8; offset < 0x00C8; offset++) {
1646 b43_phy_write(dev, offset, (val & 0x3F3F));
1647 val += 0x0202;
1648 }
1649 if (phy->type == B43_PHYTYPE_G) {
1650 b43_radio_set(dev, 0x007A, 0x0020);
1651 b43_radio_set(dev, 0x0051, 0x0004);
1652 b43_phy_set(dev, 0x0802, 0x0100);
1653 b43_phy_set(dev, 0x042B, 0x2000);
1654 b43_phy_write(dev, 0x5B, 0);
1655 b43_phy_write(dev, 0x5C, 0);
1656 }
1657
1658 old_channel = phy->channel;
1659 if (old_channel >= 8)
1660 b43_gphy_channel_switch(dev, 1, 0);
1661 else
1662 b43_gphy_channel_switch(dev, 13, 0);
1663
1664 b43_radio_write16(dev, 0x0050, 0x0020);
1665 b43_radio_write16(dev, 0x0050, 0x0023);
1666 udelay(40);
1667 if (phy->radio_rev < 6 || phy->radio_rev == 8) {
1668 b43_radio_write16(dev, 0x7C, (b43_radio_read16(dev, 0x7C)
1669 | 0x0002));
1670 b43_radio_write16(dev, 0x50, 0x20);
1671 }
1672 if (phy->radio_rev <= 2) {
1673 b43_radio_write16(dev, 0x7C, 0x20);
1674 b43_radio_write16(dev, 0x5A, 0x70);
1675 b43_radio_write16(dev, 0x5B, 0x7B);
1676 b43_radio_write16(dev, 0x5C, 0xB0);
1677 }
1678 b43_radio_maskset(dev, 0x007A, 0x00F8, 0x0007);
1679
1680 b43_gphy_channel_switch(dev, old_channel, 0);
1681
1682 b43_phy_write(dev, 0x0014, 0x0200);
1683 if (phy->radio_rev >= 6)
1684 b43_phy_write(dev, 0x2A, 0x88C2);
1685 else
1686 b43_phy_write(dev, 0x2A, 0x8AC0);
1687 b43_phy_write(dev, 0x0038, 0x0668);
1688 b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt, gphy->tx_control);
1689 if (phy->radio_rev <= 5) {
1690 b43_phy_maskset(dev, 0x5D, 0xFF80, 0x0003);
1691 }
1692 if (phy->radio_rev <= 2)
1693 b43_radio_write16(dev, 0x005D, 0x000D);
1694
1695 if (phy->analog == 4) {
1696 b43_write16(dev, 0x3E4, 9);
1697 b43_phy_mask(dev, 0x61, 0x0FFF);
1698 } else {
1699 b43_phy_maskset(dev, 0x0002, 0xFFC0, 0x0004);
1700 }
1701 if (phy->type == B43_PHYTYPE_B)
1702 B43_WARN_ON(1);
1703 else if (phy->type == B43_PHYTYPE_G)
1704 b43_write16(dev, 0x03E6, 0x0);
1705 }
1706
1707 static void b43_calc_loopback_gain(struct b43_wldev *dev)
1708 {
1709 struct b43_phy *phy = &dev->phy;
1710 struct b43_phy_g *gphy = phy->g;
1711 u16 backup_phy[16] = { 0 };
1712 u16 backup_radio[3];
1713 u16 backup_bband;
1714 u16 i, j, loop_i_max;
1715 u16 trsw_rx;
1716 u16 loop1_outer_done, loop1_inner_done;
1717
1718 backup_phy[0] = b43_phy_read(dev, B43_PHY_CRS0);
1719 backup_phy[1] = b43_phy_read(dev, B43_PHY_CCKBBANDCFG);
1720 backup_phy[2] = b43_phy_read(dev, B43_PHY_RFOVER);
1721 backup_phy[3] = b43_phy_read(dev, B43_PHY_RFOVERVAL);
1722 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
1723 backup_phy[4] = b43_phy_read(dev, B43_PHY_ANALOGOVER);
1724 backup_phy[5] = b43_phy_read(dev, B43_PHY_ANALOGOVERVAL);
1725 }
1726 backup_phy[6] = b43_phy_read(dev, B43_PHY_CCK(0x5A));
1727 backup_phy[7] = b43_phy_read(dev, B43_PHY_CCK(0x59));
1728 backup_phy[8] = b43_phy_read(dev, B43_PHY_CCK(0x58));
1729 backup_phy[9] = b43_phy_read(dev, B43_PHY_CCK(0x0A));
1730 backup_phy[10] = b43_phy_read(dev, B43_PHY_CCK(0x03));
1731 backup_phy[11] = b43_phy_read(dev, B43_PHY_LO_MASK);
1732 backup_phy[12] = b43_phy_read(dev, B43_PHY_LO_CTL);
1733 backup_phy[13] = b43_phy_read(dev, B43_PHY_CCK(0x2B));
1734 backup_phy[14] = b43_phy_read(dev, B43_PHY_PGACTL);
1735 backup_phy[15] = b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
1736 backup_bband = gphy->bbatt.att;
1737 backup_radio[0] = b43_radio_read16(dev, 0x52);
1738 backup_radio[1] = b43_radio_read16(dev, 0x43);
1739 backup_radio[2] = b43_radio_read16(dev, 0x7A);
1740
1741 b43_phy_mask(dev, B43_PHY_CRS0, 0x3FFF);
1742 b43_phy_set(dev, B43_PHY_CCKBBANDCFG, 0x8000);
1743 b43_phy_set(dev, B43_PHY_RFOVER, 0x0002);
1744 b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xFFFD);
1745 b43_phy_set(dev, B43_PHY_RFOVER, 0x0001);
1746 b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xFFFE);
1747 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
1748 b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0001);
1749 b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFE);
1750 b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0002);
1751 b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFD);
1752 }
1753 b43_phy_set(dev, B43_PHY_RFOVER, 0x000C);
1754 b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x000C);
1755 b43_phy_set(dev, B43_PHY_RFOVER, 0x0030);
1756 b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xFFCF, 0x10);
1757
1758 b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0780);
1759 b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
1760 b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
1761
1762 b43_phy_set(dev, B43_PHY_CCK(0x0A), 0x2000);
1763 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
1764 b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0004);
1765 b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFB);
1766 }
1767 b43_phy_maskset(dev, B43_PHY_CCK(0x03), 0xFF9F, 0x40);
1768
1769 if (phy->radio_rev == 8) {
1770 b43_radio_write16(dev, 0x43, 0x000F);
1771 } else {
1772 b43_radio_write16(dev, 0x52, 0);
1773 b43_radio_maskset(dev, 0x43, 0xFFF0, 0x9);
1774 }
1775 b43_gphy_set_baseband_attenuation(dev, 11);
1776
1777 if (phy->rev >= 3)
1778 b43_phy_write(dev, B43_PHY_LO_MASK, 0xC020);
1779 else
1780 b43_phy_write(dev, B43_PHY_LO_MASK, 0x8020);
1781 b43_phy_write(dev, B43_PHY_LO_CTL, 0);
1782
1783 b43_phy_maskset(dev, B43_PHY_CCK(0x2B), 0xFFC0, 0x01);
1784 b43_phy_maskset(dev, B43_PHY_CCK(0x2B), 0xC0FF, 0x800);
1785
1786 b43_phy_set(dev, B43_PHY_RFOVER, 0x0100);
1787 b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xCFFF);
1788
1789 if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_EXTLNA) {
1790 if (phy->rev >= 7) {
1791 b43_phy_set(dev, B43_PHY_RFOVER, 0x0800);
1792 b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x8000);
1793 }
1794 }
1795 b43_radio_mask(dev, 0x7A, 0x00F7);
1796
1797 j = 0;
1798 loop_i_max = (phy->radio_rev == 8) ? 15 : 9;
1799 for (i = 0; i < loop_i_max; i++) {
1800 for (j = 0; j < 16; j++) {
1801 b43_radio_write16(dev, 0x43, i);
1802 b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xF0FF, (j << 8));
1803 b43_phy_maskset(dev, B43_PHY_PGACTL, 0x0FFF, 0xA000);
1804 b43_phy_set(dev, B43_PHY_PGACTL, 0xF000);
1805 udelay(20);
1806 if (b43_phy_read(dev, B43_PHY_LO_LEAKAGE) >= 0xDFC)
1807 goto exit_loop1;
1808 }
1809 }
1810 exit_loop1:
1811 loop1_outer_done = i;
1812 loop1_inner_done = j;
1813 if (j >= 8) {
1814 b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x30);
1815 trsw_rx = 0x1B;
1816 for (j = j - 8; j < 16; j++) {
1817 b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xF0FF, (j << 8));
1818 b43_phy_maskset(dev, B43_PHY_PGACTL, 0x0FFF, 0xA000);
1819 b43_phy_set(dev, B43_PHY_PGACTL, 0xF000);
1820 udelay(20);
1821 trsw_rx -= 3;
1822 if (b43_phy_read(dev, B43_PHY_LO_LEAKAGE) >= 0xDFC)
1823 goto exit_loop2;
1824 }
1825 } else
1826 trsw_rx = 0x18;
1827 exit_loop2:
1828
1829 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
1830 b43_phy_write(dev, B43_PHY_ANALOGOVER, backup_phy[4]);
1831 b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, backup_phy[5]);
1832 }
1833 b43_phy_write(dev, B43_PHY_CCK(0x5A), backup_phy[6]);
1834 b43_phy_write(dev, B43_PHY_CCK(0x59), backup_phy[7]);
1835 b43_phy_write(dev, B43_PHY_CCK(0x58), backup_phy[8]);
1836 b43_phy_write(dev, B43_PHY_CCK(0x0A), backup_phy[9]);
1837 b43_phy_write(dev, B43_PHY_CCK(0x03), backup_phy[10]);
1838 b43_phy_write(dev, B43_PHY_LO_MASK, backup_phy[11]);
1839 b43_phy_write(dev, B43_PHY_LO_CTL, backup_phy[12]);
1840 b43_phy_write(dev, B43_PHY_CCK(0x2B), backup_phy[13]);
1841 b43_phy_write(dev, B43_PHY_PGACTL, backup_phy[14]);
1842
1843 b43_gphy_set_baseband_attenuation(dev, backup_bband);
1844
1845 b43_radio_write16(dev, 0x52, backup_radio[0]);
1846 b43_radio_write16(dev, 0x43, backup_radio[1]);
1847 b43_radio_write16(dev, 0x7A, backup_radio[2]);
1848
1849 b43_phy_write(dev, B43_PHY_RFOVER, backup_phy[2] | 0x0003);
1850 udelay(10);
1851 b43_phy_write(dev, B43_PHY_RFOVER, backup_phy[2]);
1852 b43_phy_write(dev, B43_PHY_RFOVERVAL, backup_phy[3]);
1853 b43_phy_write(dev, B43_PHY_CRS0, backup_phy[0]);
1854 b43_phy_write(dev, B43_PHY_CCKBBANDCFG, backup_phy[1]);
1855
1856 gphy->max_lb_gain =
1857 ((loop1_inner_done * 6) - (loop1_outer_done * 4)) - 11;
1858 gphy->trsw_rx_gain = trsw_rx * 2;
1859 }
1860
1861 static void b43_hardware_pctl_early_init(struct b43_wldev *dev)
1862 {
1863 struct b43_phy *phy = &dev->phy;
1864
1865 if (!b43_has_hardware_pctl(dev)) {
1866 b43_phy_write(dev, 0x047A, 0xC111);
1867 return;
1868 }
1869
1870 b43_phy_mask(dev, 0x0036, 0xFEFF);
1871 b43_phy_write(dev, 0x002F, 0x0202);
1872 b43_phy_set(dev, 0x047C, 0x0002);
1873 b43_phy_set(dev, 0x047A, 0xF000);
1874 if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
1875 b43_phy_maskset(dev, 0x047A, 0xFF0F, 0x0010);
1876 b43_phy_set(dev, 0x005D, 0x8000);
1877 b43_phy_maskset(dev, 0x004E, 0xFFC0, 0x0010);
1878 b43_phy_write(dev, 0x002E, 0xC07F);
1879 b43_phy_set(dev, 0x0036, 0x0400);
1880 } else {
1881 b43_phy_set(dev, 0x0036, 0x0200);
1882 b43_phy_set(dev, 0x0036, 0x0400);
1883 b43_phy_mask(dev, 0x005D, 0x7FFF);
1884 b43_phy_mask(dev, 0x004F, 0xFFFE);
1885 b43_phy_maskset(dev, 0x004E, 0xFFC0, 0x0010);
1886 b43_phy_write(dev, 0x002E, 0xC07F);
1887 b43_phy_maskset(dev, 0x047A, 0xFF0F, 0x0010);
1888 }
1889 }
1890
1891 /* Hardware power control for G-PHY */
1892 static void b43_hardware_pctl_init_gphy(struct b43_wldev *dev)
1893 {
1894 struct b43_phy *phy = &dev->phy;
1895 struct b43_phy_g *gphy = phy->g;
1896
1897 if (!b43_has_hardware_pctl(dev)) {
1898 /* No hardware power control */
1899 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_HWPCTL);
1900 return;
1901 }
1902
1903 b43_phy_maskset(dev, 0x0036, 0xFFC0, (gphy->tgt_idle_tssi - gphy->cur_idle_tssi));
1904 b43_phy_maskset(dev, 0x0478, 0xFF00, (gphy->tgt_idle_tssi - gphy->cur_idle_tssi));
1905 b43_gphy_tssi_power_lt_init(dev);
1906 b43_gphy_gain_lt_init(dev);
1907 b43_phy_mask(dev, 0x0060, 0xFFBF);
1908 b43_phy_write(dev, 0x0014, 0x0000);
1909
1910 B43_WARN_ON(phy->rev < 6);
1911 b43_phy_set(dev, 0x0478, 0x0800);
1912 b43_phy_mask(dev, 0x0478, 0xFEFF);
1913 b43_phy_mask(dev, 0x0801, 0xFFBF);
1914
1915 b43_gphy_dc_lt_init(dev, 1);
1916
1917 /* Enable hardware pctl in firmware. */
1918 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_HWPCTL);
1919 }
1920
1921 /* Initialize B/G PHY power control */
1922 static void b43_phy_init_pctl(struct b43_wldev *dev)
1923 {
1924 struct b43_phy *phy = &dev->phy;
1925 struct b43_phy_g *gphy = phy->g;
1926 struct b43_rfatt old_rfatt;
1927 struct b43_bbatt old_bbatt;
1928 u8 old_tx_control = 0;
1929
1930 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
1931
1932 if ((dev->dev->board_vendor == SSB_BOARDVENDOR_BCM) &&
1933 (dev->dev->board_type == SSB_BOARD_BU4306))
1934 return;
1935
1936 b43_phy_write(dev, 0x0028, 0x8018);
1937
1938 /* This does something with the Analog... */
1939 b43_write16(dev, B43_MMIO_PHY0, b43_read16(dev, B43_MMIO_PHY0)
1940 & 0xFFDF);
1941
1942 if (!phy->gmode)
1943 return;
1944 b43_hardware_pctl_early_init(dev);
1945 if (gphy->cur_idle_tssi == 0) {
1946 if (phy->radio_ver == 0x2050 && phy->analog == 0) {
1947 b43_radio_maskset(dev, 0x0076, 0x00F7, 0x0084);
1948 } else {
1949 struct b43_rfatt rfatt;
1950 struct b43_bbatt bbatt;
1951
1952 memcpy(&old_rfatt, &gphy->rfatt, sizeof(old_rfatt));
1953 memcpy(&old_bbatt, &gphy->bbatt, sizeof(old_bbatt));
1954 old_tx_control = gphy->tx_control;
1955
1956 bbatt.att = 11;
1957 if (phy->radio_rev == 8) {
1958 rfatt.att = 15;
1959 rfatt.with_padmix = true;
1960 } else {
1961 rfatt.att = 9;
1962 rfatt.with_padmix = false;
1963 }
1964 b43_set_txpower_g(dev, &bbatt, &rfatt, 0);
1965 }
1966 b43_dummy_transmission(dev, false, true);
1967 gphy->cur_idle_tssi = b43_phy_read(dev, B43_PHY_ITSSI);
1968 if (B43_DEBUG) {
1969 /* Current-Idle-TSSI sanity check. */
1970 if (abs(gphy->cur_idle_tssi - gphy->tgt_idle_tssi) >= 20) {
1971 b43dbg(dev->wl,
1972 "!WARNING! Idle-TSSI phy->cur_idle_tssi "
1973 "measuring failed. (cur=%d, tgt=%d). Disabling TX power "
1974 "adjustment.\n", gphy->cur_idle_tssi,
1975 gphy->tgt_idle_tssi);
1976 gphy->cur_idle_tssi = 0;
1977 }
1978 }
1979 if (phy->radio_ver == 0x2050 && phy->analog == 0) {
1980 b43_radio_mask(dev, 0x0076, 0xFF7B);
1981 } else {
1982 b43_set_txpower_g(dev, &old_bbatt,
1983 &old_rfatt, old_tx_control);
1984 }
1985 }
1986 b43_hardware_pctl_init_gphy(dev);
1987 b43_shm_clear_tssi(dev);
1988 }
1989
1990 static void b43_phy_initg(struct b43_wldev *dev)
1991 {
1992 struct b43_phy *phy = &dev->phy;
1993 struct b43_phy_g *gphy = phy->g;
1994 u16 tmp;
1995
1996 if (phy->rev == 1)
1997 b43_phy_initb5(dev);
1998 else
1999 b43_phy_initb6(dev);
2000
2001 if (phy->rev >= 2 || phy->gmode)
2002 b43_phy_inita(dev);
2003
2004 if (phy->rev >= 2) {
2005 b43_phy_write(dev, B43_PHY_ANALOGOVER, 0);
2006 b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, 0);
2007 }
2008 if (phy->rev == 2) {
2009 b43_phy_write(dev, B43_PHY_RFOVER, 0);
2010 b43_phy_write(dev, B43_PHY_PGACTL, 0xC0);
2011 }
2012 if (phy->rev > 5) {
2013 b43_phy_write(dev, B43_PHY_RFOVER, 0x400);
2014 b43_phy_write(dev, B43_PHY_PGACTL, 0xC0);
2015 }
2016 if (phy->gmode || phy->rev >= 2) {
2017 tmp = b43_phy_read(dev, B43_PHY_VERSION_OFDM);
2018 tmp &= B43_PHYVER_VERSION;
2019 if (tmp == 3 || tmp == 5) {
2020 b43_phy_write(dev, B43_PHY_OFDM(0xC2), 0x1816);
2021 b43_phy_write(dev, B43_PHY_OFDM(0xC3), 0x8006);
2022 }
2023 if (tmp == 5) {
2024 b43_phy_maskset(dev, B43_PHY_OFDM(0xCC), 0x00FF, 0x1F00);
2025 }
2026 }
2027 if ((phy->rev <= 2 && phy->gmode) || phy->rev >= 2)
2028 b43_phy_write(dev, B43_PHY_OFDM(0x7E), 0x78);
2029 if (phy->radio_rev == 8) {
2030 b43_phy_set(dev, B43_PHY_EXTG(0x01), 0x80);
2031 b43_phy_set(dev, B43_PHY_OFDM(0x3E), 0x4);
2032 }
2033 if (has_loopback_gain(phy))
2034 b43_calc_loopback_gain(dev);
2035
2036 if (phy->radio_rev != 8) {
2037 if (gphy->initval == 0xFFFF)
2038 gphy->initval = b43_radio_init2050(dev);
2039 else
2040 b43_radio_write16(dev, 0x0078, gphy->initval);
2041 }
2042 b43_lo_g_init(dev);
2043 if (has_tx_magnification(phy)) {
2044 b43_radio_write16(dev, 0x52,
2045 (b43_radio_read16(dev, 0x52) & 0xFF00)
2046 | gphy->lo_control->tx_bias | gphy->
2047 lo_control->tx_magn);
2048 } else {
2049 b43_radio_maskset(dev, 0x52, 0xFFF0, gphy->lo_control->tx_bias);
2050 }
2051 if (phy->rev >= 6) {
2052 b43_phy_maskset(dev, B43_PHY_CCK(0x36), 0x0FFF, (gphy->lo_control->tx_bias << 12));
2053 }
2054 if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL)
2055 b43_phy_write(dev, B43_PHY_CCK(0x2E), 0x8075);
2056 else
2057 b43_phy_write(dev, B43_PHY_CCK(0x2E), 0x807F);
2058 if (phy->rev < 2)
2059 b43_phy_write(dev, B43_PHY_CCK(0x2F), 0x101);
2060 else
2061 b43_phy_write(dev, B43_PHY_CCK(0x2F), 0x202);
2062 if (phy->gmode || phy->rev >= 2) {
2063 b43_lo_g_adjust(dev);
2064 b43_phy_write(dev, B43_PHY_LO_MASK, 0x8078);
2065 }
2066
2067 if (!(dev->dev->bus_sprom->boardflags_lo & B43_BFL_RSSI)) {
2068 /* The specs state to update the NRSSI LT with
2069 * the value 0x7FFFFFFF here. I think that is some weird
2070 * compiler optimization in the original driver.
2071 * Essentially, what we do here is resetting all NRSSI LT
2072 * entries to -32 (see the clamp_val() in nrssi_hw_update())
2073 */
2074 b43_nrssi_hw_update(dev, 0xFFFF); //FIXME?
2075 b43_calc_nrssi_threshold(dev);
2076 } else if (phy->gmode || phy->rev >= 2) {
2077 if (gphy->nrssi[0] == -1000) {
2078 B43_WARN_ON(gphy->nrssi[1] != -1000);
2079 b43_calc_nrssi_slope(dev);
2080 } else
2081 b43_calc_nrssi_threshold(dev);
2082 }
2083 if (phy->radio_rev == 8)
2084 b43_phy_write(dev, B43_PHY_EXTG(0x05), 0x3230);
2085 b43_phy_init_pctl(dev);
2086 /* FIXME: The spec says in the following if, the 0 should be replaced
2087 'if OFDM may not be used in the current locale'
2088 but OFDM is legal everywhere */
2089 if ((dev->dev->chip_id == 0x4306
2090 && dev->dev->chip_pkg == 2) || 0) {
2091 b43_phy_mask(dev, B43_PHY_CRS0, 0xBFFF);
2092 b43_phy_mask(dev, B43_PHY_OFDM(0xC3), 0x7FFF);
2093 }
2094 }
2095
2096 void b43_gphy_channel_switch(struct b43_wldev *dev,
2097 unsigned int channel,
2098 bool synthetic_pu_workaround)
2099 {
2100 if (synthetic_pu_workaround)
2101 b43_synth_pu_workaround(dev, channel);
2102
2103 b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel));
2104
2105 if (channel == 14) {
2106 if (dev->dev->bus_sprom->country_code ==
2107 SSB_SPROM1CCODE_JAPAN)
2108 b43_hf_write(dev,
2109 b43_hf_read(dev) & ~B43_HF_ACPR);
2110 else
2111 b43_hf_write(dev,
2112 b43_hf_read(dev) | B43_HF_ACPR);
2113 b43_write16(dev, B43_MMIO_CHANNEL_EXT,
2114 b43_read16(dev, B43_MMIO_CHANNEL_EXT)
2115 | (1 << 11));
2116 } else {
2117 b43_write16(dev, B43_MMIO_CHANNEL_EXT,
2118 b43_read16(dev, B43_MMIO_CHANNEL_EXT)
2119 & 0xF7BF);
2120 }
2121 }
2122
2123 static void default_baseband_attenuation(struct b43_wldev *dev,
2124 struct b43_bbatt *bb)
2125 {
2126 struct b43_phy *phy = &dev->phy;
2127
2128 if (phy->radio_ver == 0x2050 && phy->radio_rev < 6)
2129 bb->att = 0;
2130 else
2131 bb->att = 2;
2132 }
2133
2134 static void default_radio_attenuation(struct b43_wldev *dev,
2135 struct b43_rfatt *rf)
2136 {
2137 struct b43_bus_dev *bdev = dev->dev;
2138 struct b43_phy *phy = &dev->phy;
2139
2140 rf->with_padmix = false;
2141
2142 if (dev->dev->board_vendor == SSB_BOARDVENDOR_BCM &&
2143 dev->dev->board_type == SSB_BOARD_BCM4309G) {
2144 if (dev->dev->board_rev < 0x43) {
2145 rf->att = 2;
2146 return;
2147 } else if (dev->dev->board_rev < 0x51) {
2148 rf->att = 3;
2149 return;
2150 }
2151 }
2152
2153 if (phy->type == B43_PHYTYPE_A) {
2154 rf->att = 0x60;
2155 return;
2156 }
2157
2158 switch (phy->radio_ver) {
2159 case 0x2053:
2160 switch (phy->radio_rev) {
2161 case 1:
2162 rf->att = 6;
2163 return;
2164 }
2165 break;
2166 case 0x2050:
2167 switch (phy->radio_rev) {
2168 case 0:
2169 rf->att = 5;
2170 return;
2171 case 1:
2172 if (phy->type == B43_PHYTYPE_G) {
2173 if (bdev->board_vendor == SSB_BOARDVENDOR_BCM
2174 && bdev->board_type == SSB_BOARD_BCM4309G
2175 && bdev->board_rev >= 30)
2176 rf->att = 3;
2177 else if (bdev->board_vendor ==
2178 SSB_BOARDVENDOR_BCM
2179 && bdev->board_type ==
2180 SSB_BOARD_BU4306)
2181 rf->att = 3;
2182 else
2183 rf->att = 1;
2184 } else {
2185 if (bdev->board_vendor == SSB_BOARDVENDOR_BCM
2186 && bdev->board_type == SSB_BOARD_BCM4309G
2187 && bdev->board_rev >= 30)
2188 rf->att = 7;
2189 else
2190 rf->att = 6;
2191 }
2192 return;
2193 case 2:
2194 if (phy->type == B43_PHYTYPE_G) {
2195 if (bdev->board_vendor == SSB_BOARDVENDOR_BCM
2196 && bdev->board_type == SSB_BOARD_BCM4309G
2197 && bdev->board_rev >= 30)
2198 rf->att = 3;
2199 else if (bdev->board_vendor ==
2200 SSB_BOARDVENDOR_BCM
2201 && bdev->board_type ==
2202 SSB_BOARD_BU4306)
2203 rf->att = 5;
2204 else if (bdev->chip_id == 0x4320)
2205 rf->att = 4;
2206 else
2207 rf->att = 3;
2208 } else
2209 rf->att = 6;
2210 return;
2211 case 3:
2212 rf->att = 5;
2213 return;
2214 case 4:
2215 case 5:
2216 rf->att = 1;
2217 return;
2218 case 6:
2219 case 7:
2220 rf->att = 5;
2221 return;
2222 case 8:
2223 rf->att = 0xA;
2224 rf->with_padmix = true;
2225 return;
2226 case 9:
2227 default:
2228 rf->att = 5;
2229 return;
2230 }
2231 }
2232 rf->att = 5;
2233 }
2234
2235 static u16 default_tx_control(struct b43_wldev *dev)
2236 {
2237 struct b43_phy *phy = &dev->phy;
2238
2239 if (phy->radio_ver != 0x2050)
2240 return 0;
2241 if (phy->radio_rev == 1)
2242 return B43_TXCTL_PA2DB | B43_TXCTL_TXMIX;
2243 if (phy->radio_rev < 6)
2244 return B43_TXCTL_PA2DB;
2245 if (phy->radio_rev == 8)
2246 return B43_TXCTL_TXMIX;
2247 return 0;
2248 }
2249
2250 static u8 b43_gphy_aci_detect(struct b43_wldev *dev, u8 channel)
2251 {
2252 struct b43_phy *phy = &dev->phy;
2253 struct b43_phy_g *gphy = phy->g;
2254 u8 ret = 0;
2255 u16 saved, rssi, temp;
2256 int i, j = 0;
2257
2258 saved = b43_phy_read(dev, 0x0403);
2259 b43_switch_channel(dev, channel);
2260 b43_phy_write(dev, 0x0403, (saved & 0xFFF8) | 5);
2261 if (gphy->aci_hw_rssi)
2262 rssi = b43_phy_read(dev, 0x048A) & 0x3F;
2263 else
2264 rssi = saved & 0x3F;
2265 /* clamp temp to signed 5bit */
2266 if (rssi > 32)
2267 rssi -= 64;
2268 for (i = 0; i < 100; i++) {
2269 temp = (b43_phy_read(dev, 0x047F) >> 8) & 0x3F;
2270 if (temp > 32)
2271 temp -= 64;
2272 if (temp < rssi)
2273 j++;
2274 if (j >= 20)
2275 ret = 1;
2276 }
2277 b43_phy_write(dev, 0x0403, saved);
2278
2279 return ret;
2280 }
2281
2282 static u8 b43_gphy_aci_scan(struct b43_wldev *dev)
2283 {
2284 struct b43_phy *phy = &dev->phy;
2285 u8 ret[13];
2286 unsigned int channel = phy->channel;
2287 unsigned int i, j, start, end;
2288
2289 if (!((phy->type == B43_PHYTYPE_G) && (phy->rev > 0)))
2290 return 0;
2291
2292 b43_phy_lock(dev);
2293 b43_radio_lock(dev);
2294 b43_phy_mask(dev, 0x0802, 0xFFFC);
2295 b43_phy_mask(dev, B43_PHY_G_CRS, 0x7FFF);
2296 b43_set_all_gains(dev, 3, 8, 1);
2297
2298 start = (channel - 5 > 0) ? channel - 5 : 1;
2299 end = (channel + 5 < 14) ? channel + 5 : 13;
2300
2301 for (i = start; i <= end; i++) {
2302 if (abs(channel - i) > 2)
2303 ret[i - 1] = b43_gphy_aci_detect(dev, i);
2304 }
2305 b43_switch_channel(dev, channel);
2306 b43_phy_maskset(dev, 0x0802, 0xFFFC, 0x0003);
2307 b43_phy_mask(dev, 0x0403, 0xFFF8);
2308 b43_phy_set(dev, B43_PHY_G_CRS, 0x8000);
2309 b43_set_original_gains(dev);
2310 for (i = 0; i < 13; i++) {
2311 if (!ret[i])
2312 continue;
2313 end = (i + 5 < 13) ? i + 5 : 13;
2314 for (j = i; j < end; j++)
2315 ret[j] = 1;
2316 }
2317 b43_radio_unlock(dev);
2318 b43_phy_unlock(dev);
2319
2320 return ret[channel - 1];
2321 }
2322
2323 static s32 b43_tssi2dbm_ad(s32 num, s32 den)
2324 {
2325 if (num < 0)
2326 return num / den;
2327 else
2328 return (num + den / 2) / den;
2329 }
2330
2331 static s8 b43_tssi2dbm_entry(s8 entry[], u8 index,
2332 s16 pab0, s16 pab1, s16 pab2)
2333 {
2334 s32 m1, m2, f = 256, q, delta;
2335 s8 i = 0;
2336
2337 m1 = b43_tssi2dbm_ad(16 * pab0 + index * pab1, 32);
2338 m2 = max(b43_tssi2dbm_ad(32768 + index * pab2, 256), 1);
2339 do {
2340 if (i > 15)
2341 return -EINVAL;
2342 q = b43_tssi2dbm_ad(f * 4096 -
2343 b43_tssi2dbm_ad(m2 * f, 16) * f, 2048);
2344 delta = abs(q - f);
2345 f = q;
2346 i++;
2347 } while (delta >= 2);
2348 entry[index] = clamp_val(b43_tssi2dbm_ad(m1 * f, 8192), -127, 128);
2349 return 0;
2350 }
2351
2352 u8 *b43_generate_dyn_tssi2dbm_tab(struct b43_wldev *dev,
2353 s16 pab0, s16 pab1, s16 pab2)
2354 {
2355 unsigned int i;
2356 u8 *tab;
2357 int err;
2358
2359 tab = kmalloc(64, GFP_KERNEL);
2360 if (!tab) {
2361 b43err(dev->wl, "Could not allocate memory "
2362 "for tssi2dbm table\n");
2363 return NULL;
2364 }
2365 for (i = 0; i < 64; i++) {
2366 err = b43_tssi2dbm_entry(tab, i, pab0, pab1, pab2);
2367 if (err) {
2368 b43err(dev->wl, "Could not generate "
2369 "tssi2dBm table\n");
2370 kfree(tab);
2371 return NULL;
2372 }
2373 }
2374
2375 return tab;
2376 }
2377
2378 /* Initialise the TSSI->dBm lookup table */
2379 static int b43_gphy_init_tssi2dbm_table(struct b43_wldev *dev)
2380 {
2381 struct b43_phy *phy = &dev->phy;
2382 struct b43_phy_g *gphy = phy->g;
2383 s16 pab0, pab1, pab2;
2384
2385 pab0 = (s16) (dev->dev->bus_sprom->pa0b0);
2386 pab1 = (s16) (dev->dev->bus_sprom->pa0b1);
2387 pab2 = (s16) (dev->dev->bus_sprom->pa0b2);
2388
2389 B43_WARN_ON((dev->dev->chip_id == 0x4301) &&
2390 (phy->radio_ver != 0x2050)); /* Not supported anymore */
2391
2392 gphy->dyn_tssi_tbl = false;
2393
2394 if (pab0 != 0 && pab1 != 0 && pab2 != 0 &&
2395 pab0 != -1 && pab1 != -1 && pab2 != -1) {
2396 /* The pabX values are set in SPROM. Use them. */
2397 if ((s8) dev->dev->bus_sprom->itssi_bg != 0 &&
2398 (s8) dev->dev->bus_sprom->itssi_bg != -1) {
2399 gphy->tgt_idle_tssi =
2400 (s8) (dev->dev->bus_sprom->itssi_bg);
2401 } else
2402 gphy->tgt_idle_tssi = 62;
2403 gphy->tssi2dbm = b43_generate_dyn_tssi2dbm_tab(dev, pab0,
2404 pab1, pab2);
2405 if (!gphy->tssi2dbm)
2406 return -ENOMEM;
2407 gphy->dyn_tssi_tbl = true;
2408 } else {
2409 /* pabX values not set in SPROM. */
2410 gphy->tgt_idle_tssi = 52;
2411 gphy->tssi2dbm = b43_tssi2dbm_g_table;
2412 }
2413
2414 return 0;
2415 }
2416
2417 static int b43_gphy_op_allocate(struct b43_wldev *dev)
2418 {
2419 struct b43_phy_g *gphy;
2420 struct b43_txpower_lo_control *lo;
2421 int err;
2422
2423 gphy = kzalloc(sizeof(*gphy), GFP_KERNEL);
2424 if (!gphy) {
2425 err = -ENOMEM;
2426 goto error;
2427 }
2428 dev->phy.g = gphy;
2429
2430 lo = kzalloc(sizeof(*lo), GFP_KERNEL);
2431 if (!lo) {
2432 err = -ENOMEM;
2433 goto err_free_gphy;
2434 }
2435 gphy->lo_control = lo;
2436
2437 err = b43_gphy_init_tssi2dbm_table(dev);
2438 if (err)
2439 goto err_free_lo;
2440
2441 return 0;
2442
2443 err_free_lo:
2444 kfree(lo);
2445 err_free_gphy:
2446 kfree(gphy);
2447 error:
2448 return err;
2449 }
2450
2451 static void b43_gphy_op_prepare_structs(struct b43_wldev *dev)
2452 {
2453 struct b43_phy *phy = &dev->phy;
2454 struct b43_phy_g *gphy = phy->g;
2455 const void *tssi2dbm;
2456 int tgt_idle_tssi;
2457 struct b43_txpower_lo_control *lo;
2458 unsigned int i;
2459
2460 /* tssi2dbm table is constant, so it is initialized at alloc time.
2461 * Save a copy of the pointer. */
2462 tssi2dbm = gphy->tssi2dbm;
2463 tgt_idle_tssi = gphy->tgt_idle_tssi;
2464 /* Save the LO pointer. */
2465 lo = gphy->lo_control;
2466
2467 /* Zero out the whole PHY structure. */
2468 memset(gphy, 0, sizeof(*gphy));
2469
2470 /* Restore pointers. */
2471 gphy->tssi2dbm = tssi2dbm;
2472 gphy->tgt_idle_tssi = tgt_idle_tssi;
2473 gphy->lo_control = lo;
2474
2475 memset(gphy->minlowsig, 0xFF, sizeof(gphy->minlowsig));
2476
2477 /* NRSSI */
2478 for (i = 0; i < ARRAY_SIZE(gphy->nrssi); i++)
2479 gphy->nrssi[i] = -1000;
2480 for (i = 0; i < ARRAY_SIZE(gphy->nrssi_lt); i++)
2481 gphy->nrssi_lt[i] = i;
2482
2483 gphy->lofcal = 0xFFFF;
2484 gphy->initval = 0xFFFF;
2485
2486 gphy->interfmode = B43_INTERFMODE_NONE;
2487
2488 /* OFDM-table address caching. */
2489 gphy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_UNKNOWN;
2490
2491 gphy->average_tssi = 0xFF;
2492
2493 /* Local Osciallator structure */
2494 lo->tx_bias = 0xFF;
2495 INIT_LIST_HEAD(&lo->calib_list);
2496 }
2497
2498 static void b43_gphy_op_free(struct b43_wldev *dev)
2499 {
2500 struct b43_phy *phy = &dev->phy;
2501 struct b43_phy_g *gphy = phy->g;
2502
2503 kfree(gphy->lo_control);
2504
2505 if (gphy->dyn_tssi_tbl)
2506 kfree(gphy->tssi2dbm);
2507 gphy->dyn_tssi_tbl = false;
2508 gphy->tssi2dbm = NULL;
2509
2510 kfree(gphy);
2511 dev->phy.g = NULL;
2512 }
2513
2514 static int b43_gphy_op_prepare_hardware(struct b43_wldev *dev)
2515 {
2516 struct b43_phy *phy = &dev->phy;
2517 struct b43_phy_g *gphy = phy->g;
2518 struct b43_txpower_lo_control *lo = gphy->lo_control;
2519
2520 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
2521
2522 default_baseband_attenuation(dev, &gphy->bbatt);
2523 default_radio_attenuation(dev, &gphy->rfatt);
2524 gphy->tx_control = (default_tx_control(dev) << 4);
2525 generate_rfatt_list(dev, &lo->rfatt_list);
2526 generate_bbatt_list(dev, &lo->bbatt_list);
2527
2528 /* Commit previous writes */
2529 b43_read32(dev, B43_MMIO_MACCTL);
2530
2531 if (phy->rev == 1) {
2532 /* Workaround: Temporarly disable gmode through the early init
2533 * phase, as the gmode stuff is not needed for phy rev 1 */
2534 phy->gmode = false;
2535 b43_wireless_core_reset(dev, 0);
2536 b43_phy_initg(dev);
2537 phy->gmode = true;
2538 b43_wireless_core_reset(dev, 1);
2539 }
2540
2541 return 0;
2542 }
2543
2544 static int b43_gphy_op_init(struct b43_wldev *dev)
2545 {
2546 b43_phy_initg(dev);
2547
2548 return 0;
2549 }
2550
2551 static void b43_gphy_op_exit(struct b43_wldev *dev)
2552 {
2553 b43_lo_g_cleanup(dev);
2554 }
2555
2556 static u16 b43_gphy_op_read(struct b43_wldev *dev, u16 reg)
2557 {
2558 b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
2559 return b43_read16(dev, B43_MMIO_PHY_DATA);
2560 }
2561
2562 static void b43_gphy_op_write(struct b43_wldev *dev, u16 reg, u16 value)
2563 {
2564 b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
2565 b43_write16(dev, B43_MMIO_PHY_DATA, value);
2566 }
2567
2568 static u16 b43_gphy_op_radio_read(struct b43_wldev *dev, u16 reg)
2569 {
2570 /* Register 1 is a 32-bit register. */
2571 B43_WARN_ON(reg == 1);
2572 /* G-PHY needs 0x80 for read access. */
2573 reg |= 0x80;
2574
2575 b43_write16(dev, B43_MMIO_RADIO_CONTROL, reg);
2576 return b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
2577 }
2578
2579 static void b43_gphy_op_radio_write(struct b43_wldev *dev, u16 reg, u16 value)
2580 {
2581 /* Register 1 is a 32-bit register. */
2582 B43_WARN_ON(reg == 1);
2583
2584 b43_write16(dev, B43_MMIO_RADIO_CONTROL, reg);
2585 b43_write16(dev, B43_MMIO_RADIO_DATA_LOW, value);
2586 }
2587
2588 static bool b43_gphy_op_supports_hwpctl(struct b43_wldev *dev)
2589 {
2590 return (dev->phy.rev >= 6);
2591 }
2592
2593 static void b43_gphy_op_software_rfkill(struct b43_wldev *dev,
2594 bool blocked)
2595 {
2596 struct b43_phy *phy = &dev->phy;
2597 struct b43_phy_g *gphy = phy->g;
2598 unsigned int channel;
2599
2600 might_sleep();
2601
2602 if (!blocked) {
2603 /* Turn radio ON */
2604 if (phy->radio_on)
2605 return;
2606
2607 b43_phy_write(dev, 0x0015, 0x8000);
2608 b43_phy_write(dev, 0x0015, 0xCC00);
2609 b43_phy_write(dev, 0x0015, (phy->gmode ? 0x00C0 : 0x0000));
2610 if (gphy->radio_off_context.valid) {
2611 /* Restore the RFover values. */
2612 b43_phy_write(dev, B43_PHY_RFOVER,
2613 gphy->radio_off_context.rfover);
2614 b43_phy_write(dev, B43_PHY_RFOVERVAL,
2615 gphy->radio_off_context.rfoverval);
2616 gphy->radio_off_context.valid = false;
2617 }
2618 channel = phy->channel;
2619 b43_gphy_channel_switch(dev, 6, 1);
2620 b43_gphy_channel_switch(dev, channel, 0);
2621 } else {
2622 /* Turn radio OFF */
2623 u16 rfover, rfoverval;
2624
2625 rfover = b43_phy_read(dev, B43_PHY_RFOVER);
2626 rfoverval = b43_phy_read(dev, B43_PHY_RFOVERVAL);
2627 gphy->radio_off_context.rfover = rfover;
2628 gphy->radio_off_context.rfoverval = rfoverval;
2629 gphy->radio_off_context.valid = true;
2630 b43_phy_write(dev, B43_PHY_RFOVER, rfover | 0x008C);
2631 b43_phy_write(dev, B43_PHY_RFOVERVAL, rfoverval & 0xFF73);
2632 }
2633 }
2634
2635 static int b43_gphy_op_switch_channel(struct b43_wldev *dev,
2636 unsigned int new_channel)
2637 {
2638 if ((new_channel < 1) || (new_channel > 14))
2639 return -EINVAL;
2640 b43_gphy_channel_switch(dev, new_channel, 0);
2641
2642 return 0;
2643 }
2644
2645 static unsigned int b43_gphy_op_get_default_chan(struct b43_wldev *dev)
2646 {
2647 return 1; /* Default to channel 1 */
2648 }
2649
2650 static void b43_gphy_op_set_rx_antenna(struct b43_wldev *dev, int antenna)
2651 {
2652 struct b43_phy *phy = &dev->phy;
2653 u16 tmp;
2654 int autodiv = 0;
2655
2656 if (antenna == B43_ANTENNA_AUTO0 || antenna == B43_ANTENNA_AUTO1)
2657 autodiv = 1;
2658
2659 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_ANTDIVHELP);
2660
2661 b43_phy_maskset(dev, B43_PHY_BBANDCFG, ~B43_PHY_BBANDCFG_RXANT,
2662 (autodiv ? B43_ANTENNA_AUTO1 : antenna) <<
2663 B43_PHY_BBANDCFG_RXANT_SHIFT);
2664
2665 if (autodiv) {
2666 tmp = b43_phy_read(dev, B43_PHY_ANTDWELL);
2667 if (antenna == B43_ANTENNA_AUTO1)
2668 tmp &= ~B43_PHY_ANTDWELL_AUTODIV1;
2669 else
2670 tmp |= B43_PHY_ANTDWELL_AUTODIV1;
2671 b43_phy_write(dev, B43_PHY_ANTDWELL, tmp);
2672 }
2673
2674 tmp = b43_phy_read(dev, B43_PHY_ANTWRSETT);
2675 if (autodiv)
2676 tmp |= B43_PHY_ANTWRSETT_ARXDIV;
2677 else
2678 tmp &= ~B43_PHY_ANTWRSETT_ARXDIV;
2679 b43_phy_write(dev, B43_PHY_ANTWRSETT, tmp);
2680
2681 if (autodiv)
2682 b43_phy_set(dev, B43_PHY_ANTWRSETT, B43_PHY_ANTWRSETT_ARXDIV);
2683 else {
2684 b43_phy_mask(dev, B43_PHY_ANTWRSETT,
2685 B43_PHY_ANTWRSETT_ARXDIV);
2686 }
2687
2688 if (phy->rev >= 2) {
2689 b43_phy_set(dev, B43_PHY_OFDM61, B43_PHY_OFDM61_10);
2690 b43_phy_maskset(dev, B43_PHY_DIVSRCHGAINBACK, 0xFF00, 0x15);
2691
2692 if (phy->rev == 2)
2693 b43_phy_write(dev, B43_PHY_ADIVRELATED, 8);
2694 else
2695 b43_phy_maskset(dev, B43_PHY_ADIVRELATED, 0xFF00, 8);
2696 }
2697 if (phy->rev >= 6)
2698 b43_phy_write(dev, B43_PHY_OFDM9B, 0xDC);
2699
2700 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_ANTDIVHELP);
2701 }
2702
2703 static int b43_gphy_op_interf_mitigation(struct b43_wldev *dev,
2704 enum b43_interference_mitigation mode)
2705 {
2706 struct b43_phy *phy = &dev->phy;
2707 struct b43_phy_g *gphy = phy->g;
2708 int currentmode;
2709
2710 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
2711 if ((phy->rev == 0) || (!phy->gmode))
2712 return -ENODEV;
2713
2714 gphy->aci_wlan_automatic = false;
2715 switch (mode) {
2716 case B43_INTERFMODE_AUTOWLAN:
2717 gphy->aci_wlan_automatic = true;
2718 if (gphy->aci_enable)
2719 mode = B43_INTERFMODE_MANUALWLAN;
2720 else
2721 mode = B43_INTERFMODE_NONE;
2722 break;
2723 case B43_INTERFMODE_NONE:
2724 case B43_INTERFMODE_NONWLAN:
2725 case B43_INTERFMODE_MANUALWLAN:
2726 break;
2727 default:
2728 return -EINVAL;
2729 }
2730
2731 currentmode = gphy->interfmode;
2732 if (currentmode == mode)
2733 return 0;
2734 if (currentmode != B43_INTERFMODE_NONE)
2735 b43_radio_interference_mitigation_disable(dev, currentmode);
2736
2737 if (mode == B43_INTERFMODE_NONE) {
2738 gphy->aci_enable = false;
2739 gphy->aci_hw_rssi = false;
2740 } else
2741 b43_radio_interference_mitigation_enable(dev, mode);
2742 gphy->interfmode = mode;
2743
2744 return 0;
2745 }
2746
2747 /* http://bcm-specs.sipsolutions.net/EstimatePowerOut
2748 * This function converts a TSSI value to dBm in Q5.2
2749 */
2750 static s8 b43_gphy_estimate_power_out(struct b43_wldev *dev, s8 tssi)
2751 {
2752 struct b43_phy_g *gphy = dev->phy.g;
2753 s8 dbm;
2754 s32 tmp;
2755
2756 tmp = (gphy->tgt_idle_tssi - gphy->cur_idle_tssi + tssi);
2757 tmp = clamp_val(tmp, 0x00, 0x3F);
2758 dbm = gphy->tssi2dbm[tmp];
2759
2760 return dbm;
2761 }
2762
2763 static void b43_put_attenuation_into_ranges(struct b43_wldev *dev,
2764 int *_bbatt, int *_rfatt)
2765 {
2766 int rfatt = *_rfatt;
2767 int bbatt = *_bbatt;
2768 struct b43_txpower_lo_control *lo = dev->phy.g->lo_control;
2769
2770 /* Get baseband and radio attenuation values into their permitted ranges.
2771 * Radio attenuation affects power level 4 times as much as baseband. */
2772
2773 /* Range constants */
2774 const int rf_min = lo->rfatt_list.min_val;
2775 const int rf_max = lo->rfatt_list.max_val;
2776 const int bb_min = lo->bbatt_list.min_val;
2777 const int bb_max = lo->bbatt_list.max_val;
2778
2779 while (1) {
2780 if (rfatt > rf_max && bbatt > bb_max - 4)
2781 break; /* Can not get it into ranges */
2782 if (rfatt < rf_min && bbatt < bb_min + 4)
2783 break; /* Can not get it into ranges */
2784 if (bbatt > bb_max && rfatt > rf_max - 1)
2785 break; /* Can not get it into ranges */
2786 if (bbatt < bb_min && rfatt < rf_min + 1)
2787 break; /* Can not get it into ranges */
2788
2789 if (bbatt > bb_max) {
2790 bbatt -= 4;
2791 rfatt += 1;
2792 continue;
2793 }
2794 if (bbatt < bb_min) {
2795 bbatt += 4;
2796 rfatt -= 1;
2797 continue;
2798 }
2799 if (rfatt > rf_max) {
2800 rfatt -= 1;
2801 bbatt += 4;
2802 continue;
2803 }
2804 if (rfatt < rf_min) {
2805 rfatt += 1;
2806 bbatt -= 4;
2807 continue;
2808 }
2809 break;
2810 }
2811
2812 *_rfatt = clamp_val(rfatt, rf_min, rf_max);
2813 *_bbatt = clamp_val(bbatt, bb_min, bb_max);
2814 }
2815
2816 static void b43_gphy_op_adjust_txpower(struct b43_wldev *dev)
2817 {
2818 struct b43_phy *phy = &dev->phy;
2819 struct b43_phy_g *gphy = phy->g;
2820 int rfatt, bbatt;
2821 u8 tx_control;
2822
2823 b43_mac_suspend(dev);
2824
2825 /* Calculate the new attenuation values. */
2826 bbatt = gphy->bbatt.att;
2827 bbatt += gphy->bbatt_delta;
2828 rfatt = gphy->rfatt.att;
2829 rfatt += gphy->rfatt_delta;
2830
2831 b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt);
2832 tx_control = gphy->tx_control;
2833 if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 2)) {
2834 if (rfatt <= 1) {
2835 if (tx_control == 0) {
2836 tx_control =
2837 B43_TXCTL_PA2DB |
2838 B43_TXCTL_TXMIX;
2839 rfatt += 2;
2840 bbatt += 2;
2841 } else if (dev->dev->bus_sprom->
2842 boardflags_lo &
2843 B43_BFL_PACTRL) {
2844 bbatt += 4 * (rfatt - 2);
2845 rfatt = 2;
2846 }
2847 } else if (rfatt > 4 && tx_control) {
2848 tx_control = 0;
2849 if (bbatt < 3) {
2850 rfatt -= 3;
2851 bbatt += 2;
2852 } else {
2853 rfatt -= 2;
2854 bbatt -= 2;
2855 }
2856 }
2857 }
2858 /* Save the control values */
2859 gphy->tx_control = tx_control;
2860 b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt);
2861 gphy->rfatt.att = rfatt;
2862 gphy->bbatt.att = bbatt;
2863
2864 if (b43_debug(dev, B43_DBG_XMITPOWER))
2865 b43dbg(dev->wl, "Adjusting TX power\n");
2866
2867 /* Adjust the hardware */
2868 b43_phy_lock(dev);
2869 b43_radio_lock(dev);
2870 b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt,
2871 gphy->tx_control);
2872 b43_radio_unlock(dev);
2873 b43_phy_unlock(dev);
2874
2875 b43_mac_enable(dev);
2876 }
2877
2878 static enum b43_txpwr_result b43_gphy_op_recalc_txpower(struct b43_wldev *dev,
2879 bool ignore_tssi)
2880 {
2881 struct b43_phy *phy = &dev->phy;
2882 struct b43_phy_g *gphy = phy->g;
2883 unsigned int average_tssi;
2884 int cck_result, ofdm_result;
2885 int estimated_pwr, desired_pwr, pwr_adjust;
2886 int rfatt_delta, bbatt_delta;
2887 unsigned int max_pwr;
2888
2889 /* First get the average TSSI */
2890 cck_result = b43_phy_shm_tssi_read(dev, B43_SHM_SH_TSSI_CCK);
2891 ofdm_result = b43_phy_shm_tssi_read(dev, B43_SHM_SH_TSSI_OFDM_G);
2892 if ((cck_result < 0) && (ofdm_result < 0)) {
2893 /* No TSSI information available */
2894 if (!ignore_tssi)
2895 goto no_adjustment_needed;
2896 cck_result = 0;
2897 ofdm_result = 0;
2898 }
2899 if (cck_result < 0)
2900 average_tssi = ofdm_result;
2901 else if (ofdm_result < 0)
2902 average_tssi = cck_result;
2903 else
2904 average_tssi = (cck_result + ofdm_result) / 2;
2905 /* Merge the average with the stored value. */
2906 if (likely(gphy->average_tssi != 0xFF))
2907 average_tssi = (average_tssi + gphy->average_tssi) / 2;
2908 gphy->average_tssi = average_tssi;
2909 B43_WARN_ON(average_tssi >= B43_TSSI_MAX);
2910
2911 /* Estimate the TX power emission based on the TSSI */
2912 estimated_pwr = b43_gphy_estimate_power_out(dev, average_tssi);
2913
2914 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
2915 max_pwr = dev->dev->bus_sprom->maxpwr_bg;
2916 if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL)
2917 max_pwr -= 3; /* minus 0.75 */
2918 if (unlikely(max_pwr >= INT_TO_Q52(30/*dBm*/))) {
2919 b43warn(dev->wl,
2920 "Invalid max-TX-power value in SPROM.\n");
2921 max_pwr = INT_TO_Q52(20); /* fake it */
2922 dev->dev->bus_sprom->maxpwr_bg = max_pwr;
2923 }
2924
2925 /* Get desired power (in Q5.2) */
2926 if (phy->desired_txpower < 0)
2927 desired_pwr = INT_TO_Q52(0);
2928 else
2929 desired_pwr = INT_TO_Q52(phy->desired_txpower);
2930 /* And limit it. max_pwr already is Q5.2 */
2931 desired_pwr = clamp_val(desired_pwr, 0, max_pwr);
2932 if (b43_debug(dev, B43_DBG_XMITPOWER)) {
2933 b43dbg(dev->wl,
2934 "[TX power] current = " Q52_FMT
2935 " dBm, desired = " Q52_FMT
2936 " dBm, max = " Q52_FMT "\n",
2937 Q52_ARG(estimated_pwr),
2938 Q52_ARG(desired_pwr),
2939 Q52_ARG(max_pwr));
2940 }
2941
2942 /* Calculate the adjustment delta. */
2943 pwr_adjust = desired_pwr - estimated_pwr;
2944 if (pwr_adjust == 0)
2945 goto no_adjustment_needed;
2946
2947 /* RF attenuation delta. */
2948 rfatt_delta = ((pwr_adjust + 7) / 8);
2949 /* Lower attenuation => Bigger power output. Negate it. */
2950 rfatt_delta = -rfatt_delta;
2951
2952 /* Baseband attenuation delta. */
2953 bbatt_delta = pwr_adjust / 2;
2954 /* Lower attenuation => Bigger power output. Negate it. */
2955 bbatt_delta = -bbatt_delta;
2956 /* RF att affects power level 4 times as much as
2957 * Baseband attennuation. Subtract it. */
2958 bbatt_delta -= 4 * rfatt_delta;
2959
2960 #if B43_DEBUG
2961 if (b43_debug(dev, B43_DBG_XMITPOWER)) {
2962 int dbm = pwr_adjust < 0 ? -pwr_adjust : pwr_adjust;
2963 b43dbg(dev->wl,
2964 "[TX power deltas] %s" Q52_FMT " dBm => "
2965 "bbatt-delta = %d, rfatt-delta = %d\n",
2966 (pwr_adjust < 0 ? "-" : ""), Q52_ARG(dbm),
2967 bbatt_delta, rfatt_delta);
2968 }
2969 #endif /* DEBUG */
2970
2971 /* So do we finally need to adjust something in hardware? */
2972 if ((rfatt_delta == 0) && (bbatt_delta == 0))
2973 goto no_adjustment_needed;
2974
2975 /* Save the deltas for later when we adjust the power. */
2976 gphy->bbatt_delta = bbatt_delta;
2977 gphy->rfatt_delta = rfatt_delta;
2978
2979 /* We need to adjust the TX power on the device. */
2980 return B43_TXPWR_RES_NEED_ADJUST;
2981
2982 no_adjustment_needed:
2983 return B43_TXPWR_RES_DONE;
2984 }
2985
2986 static void b43_gphy_op_pwork_15sec(struct b43_wldev *dev)
2987 {
2988 struct b43_phy *phy = &dev->phy;
2989 struct b43_phy_g *gphy = phy->g;
2990
2991 b43_mac_suspend(dev);
2992 //TODO: update_aci_moving_average
2993 if (gphy->aci_enable && gphy->aci_wlan_automatic) {
2994 if (!gphy->aci_enable && 1 /*TODO: not scanning? */ ) {
2995 if (0 /*TODO: bunch of conditions */ ) {
2996 phy->ops->interf_mitigation(dev,
2997 B43_INTERFMODE_MANUALWLAN);
2998 }
2999 } else if (0 /*TODO*/) {
3000 if (/*(aci_average > 1000) &&*/ !b43_gphy_aci_scan(dev))
3001 phy->ops->interf_mitigation(dev, B43_INTERFMODE_NONE);
3002 }
3003 } else if (gphy->interfmode == B43_INTERFMODE_NONWLAN &&
3004 phy->rev == 1) {
3005 //TODO: implement rev1 workaround
3006 }
3007 b43_lo_g_maintanance_work(dev);
3008 b43_mac_enable(dev);
3009 }
3010
3011 static void b43_gphy_op_pwork_60sec(struct b43_wldev *dev)
3012 {
3013 struct b43_phy *phy = &dev->phy;
3014
3015 if (!(dev->dev->bus_sprom->boardflags_lo & B43_BFL_RSSI))
3016 return;
3017
3018 b43_mac_suspend(dev);
3019 b43_calc_nrssi_slope(dev);
3020 if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 8)) {
3021 u8 old_chan = phy->channel;
3022
3023 /* VCO Calibration */
3024 if (old_chan >= 8)
3025 b43_switch_channel(dev, 1);
3026 else
3027 b43_switch_channel(dev, 13);
3028 b43_switch_channel(dev, old_chan);
3029 }
3030 b43_mac_enable(dev);
3031 }
3032
3033 const struct b43_phy_operations b43_phyops_g = {
3034 .allocate = b43_gphy_op_allocate,
3035 .free = b43_gphy_op_free,
3036 .prepare_structs = b43_gphy_op_prepare_structs,
3037 .prepare_hardware = b43_gphy_op_prepare_hardware,
3038 .init = b43_gphy_op_init,
3039 .exit = b43_gphy_op_exit,
3040 .phy_read = b43_gphy_op_read,
3041 .phy_write = b43_gphy_op_write,
3042 .radio_read = b43_gphy_op_radio_read,
3043 .radio_write = b43_gphy_op_radio_write,
3044 .supports_hwpctl = b43_gphy_op_supports_hwpctl,
3045 .software_rfkill = b43_gphy_op_software_rfkill,
3046 .switch_analog = b43_phyop_switch_analog_generic,
3047 .switch_channel = b43_gphy_op_switch_channel,
3048 .get_default_chan = b43_gphy_op_get_default_chan,
3049 .set_rx_antenna = b43_gphy_op_set_rx_antenna,
3050 .interf_mitigation = b43_gphy_op_interf_mitigation,
3051 .recalc_txpower = b43_gphy_op_recalc_txpower,
3052 .adjust_txpower = b43_gphy_op_adjust_txpower,
3053 .pwork_15sec = b43_gphy_op_pwork_15sec,
3054 .pwork_60sec = b43_gphy_op_pwork_60sec,
3055 };