1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3
4 Broadcom B43 wireless driver
5 IEEE 802.11g PHY driver
6
7 Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
8 Copyright (c) 2005-2007 Stefano Brivio <stefano.brivio@polimi.it>
9 Copyright (c) 2005-2008 Michael Buesch <m@bues.ch>
10 Copyright (c) 2005, 2006 Danny van Dyk <kugelfang@gentoo.org>
11 Copyright (c) 2005, 2006 Andreas Jaggi <andreas.jaggi@waterwave.ch>
12
13
14 */
15
16 #include "b43.h"
17 #include "phy_g.h"
18 #include "phy_common.h"
19 #include "lo.h"
20 #include "main.h"
21 #include "wa.h"
22
23 #include <linux/bitrev.h>
24 #include <linux/slab.h>
25
26
27 static const s8 b43_tssi2dbm_g_table[] = {
28 77, 77, 77, 76,
29 76, 76, 75, 75,
30 74, 74, 73, 73,
31 73, 72, 72, 71,
32 71, 70, 70, 69,
33 68, 68, 67, 67,
34 66, 65, 65, 64,
35 63, 63, 62, 61,
36 60, 59, 58, 57,
37 56, 55, 54, 53,
38 52, 50, 49, 47,
39 45, 43, 40, 37,
40 33, 28, 22, 14,
41 5, -7, -20, -20,
42 -20, -20, -20, -20,
43 -20, -20, -20, -20,
44 };
45
46 static const u8 b43_radio_channel_codes_bg[] = {
47 12, 17, 22, 27,
48 32, 37, 42, 47,
49 52, 57, 62, 67,
50 72, 84,
51 };
52
53
54 static void b43_calc_nrssi_threshold(struct b43_wldev *dev);
55
56
57 #define bitrev4(tmp) (bitrev8(tmp) >> 4)
58
59
60 /* Get the freq, as it has to be written to the device. */
channel2freq_bg(u8 channel)61 static inline u16 channel2freq_bg(u8 channel)
62 {
63 B43_WARN_ON(!(channel >= 1 && channel <= 14));
64
65 return b43_radio_channel_codes_bg[channel - 1];
66 }
67
generate_rfatt_list(struct b43_wldev * dev,struct b43_rfatt_list * list)68 static void generate_rfatt_list(struct b43_wldev *dev,
69 struct b43_rfatt_list *list)
70 {
71 struct b43_phy *phy = &dev->phy;
72
73 /* APHY.rev < 5 || GPHY.rev < 6 */
74 static const struct b43_rfatt rfatt_0[] = {
75 {.att = 3,.with_padmix = 0,},
76 {.att = 1,.with_padmix = 0,},
77 {.att = 5,.with_padmix = 0,},
78 {.att = 7,.with_padmix = 0,},
79 {.att = 9,.with_padmix = 0,},
80 {.att = 2,.with_padmix = 0,},
81 {.att = 0,.with_padmix = 0,},
82 {.att = 4,.with_padmix = 0,},
83 {.att = 6,.with_padmix = 0,},
84 {.att = 8,.with_padmix = 0,},
85 {.att = 1,.with_padmix = 1,},
86 {.att = 2,.with_padmix = 1,},
87 {.att = 3,.with_padmix = 1,},
88 {.att = 4,.with_padmix = 1,},
89 };
90 /* Radio.rev == 8 && Radio.version == 0x2050 */
91 static const struct b43_rfatt rfatt_1[] = {
92 {.att = 2,.with_padmix = 1,},
93 {.att = 4,.with_padmix = 1,},
94 {.att = 6,.with_padmix = 1,},
95 {.att = 8,.with_padmix = 1,},
96 {.att = 10,.with_padmix = 1,},
97 {.att = 12,.with_padmix = 1,},
98 {.att = 14,.with_padmix = 1,},
99 };
100 /* Otherwise */
101 static const struct b43_rfatt rfatt_2[] = {
102 {.att = 0,.with_padmix = 1,},
103 {.att = 2,.with_padmix = 1,},
104 {.att = 4,.with_padmix = 1,},
105 {.att = 6,.with_padmix = 1,},
106 {.att = 8,.with_padmix = 1,},
107 {.att = 9,.with_padmix = 1,},
108 {.att = 9,.with_padmix = 1,},
109 };
110
111 if (!b43_has_hardware_pctl(dev)) {
112 /* Software pctl */
113 list->list = rfatt_0;
114 list->len = ARRAY_SIZE(rfatt_0);
115 list->min_val = 0;
116 list->max_val = 9;
117 return;
118 }
119 if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
120 /* Hardware pctl */
121 list->list = rfatt_1;
122 list->len = ARRAY_SIZE(rfatt_1);
123 list->min_val = 0;
124 list->max_val = 14;
125 return;
126 }
127 /* Hardware pctl */
128 list->list = rfatt_2;
129 list->len = ARRAY_SIZE(rfatt_2);
130 list->min_val = 0;
131 list->max_val = 9;
132 }
133
generate_bbatt_list(struct b43_wldev * dev,struct b43_bbatt_list * list)134 static void generate_bbatt_list(struct b43_wldev *dev,
135 struct b43_bbatt_list *list)
136 {
137 static const struct b43_bbatt bbatt_0[] = {
138 {.att = 0,},
139 {.att = 1,},
140 {.att = 2,},
141 {.att = 3,},
142 {.att = 4,},
143 {.att = 5,},
144 {.att = 6,},
145 {.att = 7,},
146 {.att = 8,},
147 };
148
149 list->list = bbatt_0;
150 list->len = ARRAY_SIZE(bbatt_0);
151 list->min_val = 0;
152 list->max_val = 8;
153 }
154
b43_shm_clear_tssi(struct b43_wldev * dev)155 static void b43_shm_clear_tssi(struct b43_wldev *dev)
156 {
157 b43_shm_write16(dev, B43_SHM_SHARED, 0x0058, 0x7F7F);
158 b43_shm_write16(dev, B43_SHM_SHARED, 0x005a, 0x7F7F);
159 b43_shm_write16(dev, B43_SHM_SHARED, 0x0070, 0x7F7F);
160 b43_shm_write16(dev, B43_SHM_SHARED, 0x0072, 0x7F7F);
161 }
162
163 /* Synthetic PU workaround */
b43_synth_pu_workaround(struct b43_wldev * dev,u8 channel)164 static void b43_synth_pu_workaround(struct b43_wldev *dev, u8 channel)
165 {
166 struct b43_phy *phy = &dev->phy;
167
168 might_sleep();
169
170 if (phy->radio_ver != 0x2050 || phy->radio_rev >= 6) {
171 /* We do not need the workaround. */
172 return;
173 }
174
175 if (channel <= 10) {
176 b43_write16(dev, B43_MMIO_CHANNEL,
177 channel2freq_bg(channel + 4));
178 } else {
179 b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(1));
180 }
181 msleep(1);
182 b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel));
183 }
184
185 /* Set the baseband attenuation value on chip. */
b43_gphy_set_baseband_attenuation(struct b43_wldev * dev,u16 baseband_attenuation)186 void b43_gphy_set_baseband_attenuation(struct b43_wldev *dev,
187 u16 baseband_attenuation)
188 {
189 struct b43_phy *phy = &dev->phy;
190
191 if (phy->analog == 0) {
192 b43_write16(dev, B43_MMIO_PHY0, (b43_read16(dev, B43_MMIO_PHY0)
193 & 0xFFF0) |
194 baseband_attenuation);
195 } else if (phy->analog > 1) {
196 b43_phy_maskset(dev, B43_PHY_DACCTL, 0xFFC3, (baseband_attenuation << 2));
197 } else {
198 b43_phy_maskset(dev, B43_PHY_DACCTL, 0xFF87, (baseband_attenuation << 3));
199 }
200 }
201
202 /* Adjust the transmission power output (G-PHY) */
b43_set_txpower_g(struct b43_wldev * dev,const struct b43_bbatt * bbatt,const struct b43_rfatt * rfatt,u8 tx_control)203 static void b43_set_txpower_g(struct b43_wldev *dev,
204 const struct b43_bbatt *bbatt,
205 const struct b43_rfatt *rfatt, u8 tx_control)
206 {
207 struct b43_phy *phy = &dev->phy;
208 struct b43_phy_g *gphy = phy->g;
209 struct b43_txpower_lo_control *lo = gphy->lo_control;
210 u16 bb, rf;
211 u16 tx_bias, tx_magn;
212
213 bb = bbatt->att;
214 rf = rfatt->att;
215 tx_bias = lo->tx_bias;
216 tx_magn = lo->tx_magn;
217 if (unlikely(tx_bias == 0xFF))
218 tx_bias = 0;
219
220 /* Save the values for later. Use memmove, because it's valid
221 * to pass &gphy->rfatt as rfatt pointer argument. Same for bbatt. */
222 gphy->tx_control = tx_control;
223 memmove(&gphy->rfatt, rfatt, sizeof(*rfatt));
224 gphy->rfatt.with_padmix = !!(tx_control & B43_TXCTL_TXMIX);
225 memmove(&gphy->bbatt, bbatt, sizeof(*bbatt));
226
227 if (b43_debug(dev, B43_DBG_XMITPOWER)) {
228 b43dbg(dev->wl, "Tuning TX-power to bbatt(%u), "
229 "rfatt(%u), tx_control(0x%02X), "
230 "tx_bias(0x%02X), tx_magn(0x%02X)\n",
231 bb, rf, tx_control, tx_bias, tx_magn);
232 }
233
234 b43_gphy_set_baseband_attenuation(dev, bb);
235 b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_RFATT, rf);
236 if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
237 b43_radio_write16(dev, 0x43,
238 (rf & 0x000F) | (tx_control & 0x0070));
239 } else {
240 b43_radio_maskset(dev, 0x43, 0xFFF0, (rf & 0x000F));
241 b43_radio_maskset(dev, 0x52, ~0x0070, (tx_control & 0x0070));
242 }
243 if (has_tx_magnification(phy)) {
244 b43_radio_write16(dev, 0x52, tx_magn | tx_bias);
245 } else {
246 b43_radio_maskset(dev, 0x52, 0xFFF0, (tx_bias & 0x000F));
247 }
248 b43_lo_g_adjust(dev);
249 }
250
251 /* GPHY_TSSI_Power_Lookup_Table_Init */
b43_gphy_tssi_power_lt_init(struct b43_wldev * dev)252 static void b43_gphy_tssi_power_lt_init(struct b43_wldev *dev)
253 {
254 struct b43_phy_g *gphy = dev->phy.g;
255 int i;
256 u16 value;
257
258 for (i = 0; i < 32; i++)
259 b43_ofdmtab_write16(dev, 0x3C20, i, gphy->tssi2dbm[i]);
260 for (i = 32; i < 64; i++)
261 b43_ofdmtab_write16(dev, 0x3C00, i - 32, gphy->tssi2dbm[i]);
262 for (i = 0; i < 64; i += 2) {
263 value = (u16) gphy->tssi2dbm[i];
264 value |= ((u16) gphy->tssi2dbm[i + 1]) << 8;
265 b43_phy_write(dev, 0x380 + (i / 2), value);
266 }
267 }
268
269 /* GPHY_Gain_Lookup_Table_Init */
b43_gphy_gain_lt_init(struct b43_wldev * dev)270 static void b43_gphy_gain_lt_init(struct b43_wldev *dev)
271 {
272 struct b43_phy *phy = &dev->phy;
273 struct b43_phy_g *gphy = phy->g;
274 struct b43_txpower_lo_control *lo = gphy->lo_control;
275 u16 nr_written = 0;
276 u16 tmp;
277 u8 rf, bb;
278
279 for (rf = 0; rf < lo->rfatt_list.len; rf++) {
280 for (bb = 0; bb < lo->bbatt_list.len; bb++) {
281 if (nr_written >= 0x40)
282 return;
283 tmp = lo->bbatt_list.list[bb].att;
284 tmp <<= 8;
285 if (phy->radio_rev == 8)
286 tmp |= 0x50;
287 else
288 tmp |= 0x40;
289 tmp |= lo->rfatt_list.list[rf].att;
290 b43_phy_write(dev, 0x3C0 + nr_written, tmp);
291 nr_written++;
292 }
293 }
294 }
295
b43_set_all_gains(struct b43_wldev * dev,s16 first,s16 second,s16 third)296 static void b43_set_all_gains(struct b43_wldev *dev,
297 s16 first, s16 second, s16 third)
298 {
299 struct b43_phy *phy = &dev->phy;
300 u16 i;
301 u16 start = 0x08, end = 0x18;
302 u16 tmp;
303 u16 table;
304
305 if (phy->rev <= 1) {
306 start = 0x10;
307 end = 0x20;
308 }
309
310 table = B43_OFDMTAB_GAINX;
311 if (phy->rev <= 1)
312 table = B43_OFDMTAB_GAINX_R1;
313 for (i = 0; i < 4; i++)
314 b43_ofdmtab_write16(dev, table, i, first);
315
316 for (i = start; i < end; i++)
317 b43_ofdmtab_write16(dev, table, i, second);
318
319 if (third != -1) {
320 tmp = ((u16) third << 14) | ((u16) third << 6);
321 b43_phy_maskset(dev, 0x04A0, 0xBFBF, tmp);
322 b43_phy_maskset(dev, 0x04A1, 0xBFBF, tmp);
323 b43_phy_maskset(dev, 0x04A2, 0xBFBF, tmp);
324 }
325 b43_dummy_transmission(dev, false, true);
326 }
327
b43_set_original_gains(struct b43_wldev * dev)328 static void b43_set_original_gains(struct b43_wldev *dev)
329 {
330 struct b43_phy *phy = &dev->phy;
331 u16 i, tmp;
332 u16 table;
333 u16 start = 0x0008, end = 0x0018;
334
335 if (phy->rev <= 1) {
336 start = 0x0010;
337 end = 0x0020;
338 }
339
340 table = B43_OFDMTAB_GAINX;
341 if (phy->rev <= 1)
342 table = B43_OFDMTAB_GAINX_R1;
343 for (i = 0; i < 4; i++) {
344 tmp = (i & 0xFFFC);
345 tmp |= (i & 0x0001) << 1;
346 tmp |= (i & 0x0002) >> 1;
347
348 b43_ofdmtab_write16(dev, table, i, tmp);
349 }
350
351 for (i = start; i < end; i++)
352 b43_ofdmtab_write16(dev, table, i, i - start);
353
354 b43_phy_maskset(dev, 0x04A0, 0xBFBF, 0x4040);
355 b43_phy_maskset(dev, 0x04A1, 0xBFBF, 0x4040);
356 b43_phy_maskset(dev, 0x04A2, 0xBFBF, 0x4000);
357 b43_dummy_transmission(dev, false, true);
358 }
359
360 /* https://bcm-specs.sipsolutions.net/NRSSILookupTable */
b43_nrssi_hw_write(struct b43_wldev * dev,u16 offset,s16 val)361 static void b43_nrssi_hw_write(struct b43_wldev *dev, u16 offset, s16 val)
362 {
363 b43_phy_write(dev, B43_PHY_NRSSILT_CTRL, offset);
364 b43_phy_write(dev, B43_PHY_NRSSILT_DATA, (u16) val);
365 }
366
367 /* https://bcm-specs.sipsolutions.net/NRSSILookupTable */
b43_nrssi_hw_read(struct b43_wldev * dev,u16 offset)368 static s16 b43_nrssi_hw_read(struct b43_wldev *dev, u16 offset)
369 {
370 u16 val;
371
372 b43_phy_write(dev, B43_PHY_NRSSILT_CTRL, offset);
373 val = b43_phy_read(dev, B43_PHY_NRSSILT_DATA);
374
375 return (s16) val;
376 }
377
378 /* https://bcm-specs.sipsolutions.net/NRSSILookupTable */
b43_nrssi_hw_update(struct b43_wldev * dev,u16 val)379 static void b43_nrssi_hw_update(struct b43_wldev *dev, u16 val)
380 {
381 u16 i;
382 s16 tmp;
383
384 for (i = 0; i < 64; i++) {
385 tmp = b43_nrssi_hw_read(dev, i);
386 tmp -= val;
387 tmp = clamp_val(tmp, -32, 31);
388 b43_nrssi_hw_write(dev, i, tmp);
389 }
390 }
391
392 /* https://bcm-specs.sipsolutions.net/NRSSILookupTable */
b43_nrssi_mem_update(struct b43_wldev * dev)393 static void b43_nrssi_mem_update(struct b43_wldev *dev)
394 {
395 struct b43_phy_g *gphy = dev->phy.g;
396 s16 i, delta;
397 s32 tmp;
398
399 delta = 0x1F - gphy->nrssi[0];
400 for (i = 0; i < 64; i++) {
401 tmp = (i - delta) * gphy->nrssislope;
402 tmp /= 0x10000;
403 tmp += 0x3A;
404 tmp = clamp_val(tmp, 0, 0x3F);
405 gphy->nrssi_lt[i] = tmp;
406 }
407 }
408
b43_calc_nrssi_offset(struct b43_wldev * dev)409 static void b43_calc_nrssi_offset(struct b43_wldev *dev)
410 {
411 struct b43_phy *phy = &dev->phy;
412 u16 backup[20] = { 0 };
413 s16 v47F;
414 u16 i;
415 u16 saved = 0xFFFF;
416
417 backup[0] = b43_phy_read(dev, 0x0001);
418 backup[1] = b43_phy_read(dev, 0x0811);
419 backup[2] = b43_phy_read(dev, 0x0812);
420 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
421 backup[3] = b43_phy_read(dev, 0x0814);
422 backup[4] = b43_phy_read(dev, 0x0815);
423 }
424 backup[5] = b43_phy_read(dev, 0x005A);
425 backup[6] = b43_phy_read(dev, 0x0059);
426 backup[7] = b43_phy_read(dev, 0x0058);
427 backup[8] = b43_phy_read(dev, 0x000A);
428 backup[9] = b43_phy_read(dev, 0x0003);
429 backup[10] = b43_radio_read16(dev, 0x007A);
430 backup[11] = b43_radio_read16(dev, 0x0043);
431
432 b43_phy_mask(dev, 0x0429, 0x7FFF);
433 b43_phy_maskset(dev, 0x0001, 0x3FFF, 0x4000);
434 b43_phy_set(dev, 0x0811, 0x000C);
435 b43_phy_maskset(dev, 0x0812, 0xFFF3, 0x0004);
436 b43_phy_mask(dev, 0x0802, ~(0x1 | 0x2));
437 if (phy->rev >= 6) {
438 backup[12] = b43_phy_read(dev, 0x002E);
439 backup[13] = b43_phy_read(dev, 0x002F);
440 backup[14] = b43_phy_read(dev, 0x080F);
441 backup[15] = b43_phy_read(dev, 0x0810);
442 backup[16] = b43_phy_read(dev, 0x0801);
443 backup[17] = b43_phy_read(dev, 0x0060);
444 backup[18] = b43_phy_read(dev, 0x0014);
445 backup[19] = b43_phy_read(dev, 0x0478);
446
447 b43_phy_write(dev, 0x002E, 0);
448 b43_phy_write(dev, 0x002F, 0);
449 b43_phy_write(dev, 0x080F, 0);
450 b43_phy_write(dev, 0x0810, 0);
451 b43_phy_set(dev, 0x0478, 0x0100);
452 b43_phy_set(dev, 0x0801, 0x0040);
453 b43_phy_set(dev, 0x0060, 0x0040);
454 b43_phy_set(dev, 0x0014, 0x0200);
455 }
456 b43_radio_set(dev, 0x007A, 0x0070);
457 b43_radio_set(dev, 0x007A, 0x0080);
458 udelay(30);
459
460 v47F = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
461 if (v47F >= 0x20)
462 v47F -= 0x40;
463 if (v47F == 31) {
464 for (i = 7; i >= 4; i--) {
465 b43_radio_write16(dev, 0x007B, i);
466 udelay(20);
467 v47F =
468 (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
469 if (v47F >= 0x20)
470 v47F -= 0x40;
471 if (v47F < 31 && saved == 0xFFFF)
472 saved = i;
473 }
474 if (saved == 0xFFFF)
475 saved = 4;
476 } else {
477 b43_radio_mask(dev, 0x007A, 0x007F);
478 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
479 b43_phy_set(dev, 0x0814, 0x0001);
480 b43_phy_mask(dev, 0x0815, 0xFFFE);
481 }
482 b43_phy_set(dev, 0x0811, 0x000C);
483 b43_phy_set(dev, 0x0812, 0x000C);
484 b43_phy_set(dev, 0x0811, 0x0030);
485 b43_phy_set(dev, 0x0812, 0x0030);
486 b43_phy_write(dev, 0x005A, 0x0480);
487 b43_phy_write(dev, 0x0059, 0x0810);
488 b43_phy_write(dev, 0x0058, 0x000D);
489 if (phy->rev == 0) {
490 b43_phy_write(dev, 0x0003, 0x0122);
491 } else {
492 b43_phy_set(dev, 0x000A, 0x2000);
493 }
494 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
495 b43_phy_set(dev, 0x0814, 0x0004);
496 b43_phy_mask(dev, 0x0815, 0xFFFB);
497 }
498 b43_phy_maskset(dev, 0x0003, 0xFF9F, 0x0040);
499 b43_radio_set(dev, 0x007A, 0x000F);
500 b43_set_all_gains(dev, 3, 0, 1);
501 b43_radio_maskset(dev, 0x0043, 0x00F0, 0x000F);
502 udelay(30);
503 v47F = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
504 if (v47F >= 0x20)
505 v47F -= 0x40;
506 if (v47F == -32) {
507 for (i = 0; i < 4; i++) {
508 b43_radio_write16(dev, 0x007B, i);
509 udelay(20);
510 v47F =
511 (s16) ((b43_phy_read(dev, 0x047F) >> 8) &
512 0x003F);
513 if (v47F >= 0x20)
514 v47F -= 0x40;
515 if (v47F > -31 && saved == 0xFFFF)
516 saved = i;
517 }
518 if (saved == 0xFFFF)
519 saved = 3;
520 } else
521 saved = 0;
522 }
523 b43_radio_write16(dev, 0x007B, saved);
524
525 if (phy->rev >= 6) {
526 b43_phy_write(dev, 0x002E, backup[12]);
527 b43_phy_write(dev, 0x002F, backup[13]);
528 b43_phy_write(dev, 0x080F, backup[14]);
529 b43_phy_write(dev, 0x0810, backup[15]);
530 }
531 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
532 b43_phy_write(dev, 0x0814, backup[3]);
533 b43_phy_write(dev, 0x0815, backup[4]);
534 }
535 b43_phy_write(dev, 0x005A, backup[5]);
536 b43_phy_write(dev, 0x0059, backup[6]);
537 b43_phy_write(dev, 0x0058, backup[7]);
538 b43_phy_write(dev, 0x000A, backup[8]);
539 b43_phy_write(dev, 0x0003, backup[9]);
540 b43_radio_write16(dev, 0x0043, backup[11]);
541 b43_radio_write16(dev, 0x007A, backup[10]);
542 b43_phy_write(dev, 0x0802, b43_phy_read(dev, 0x0802) | 0x1 | 0x2);
543 b43_phy_set(dev, 0x0429, 0x8000);
544 b43_set_original_gains(dev);
545 if (phy->rev >= 6) {
546 b43_phy_write(dev, 0x0801, backup[16]);
547 b43_phy_write(dev, 0x0060, backup[17]);
548 b43_phy_write(dev, 0x0014, backup[18]);
549 b43_phy_write(dev, 0x0478, backup[19]);
550 }
551 b43_phy_write(dev, 0x0001, backup[0]);
552 b43_phy_write(dev, 0x0812, backup[2]);
553 b43_phy_write(dev, 0x0811, backup[1]);
554 }
555
b43_calc_nrssi_slope(struct b43_wldev * dev)556 static void b43_calc_nrssi_slope(struct b43_wldev *dev)
557 {
558 struct b43_phy *phy = &dev->phy;
559 struct b43_phy_g *gphy = phy->g;
560 u16 backup[18] = { 0 };
561 u16 tmp;
562 s16 nrssi0, nrssi1;
563
564 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
565
566 if (phy->radio_rev >= 9)
567 return;
568 if (phy->radio_rev == 8)
569 b43_calc_nrssi_offset(dev);
570
571 b43_phy_mask(dev, B43_PHY_G_CRS, 0x7FFF);
572 b43_phy_mask(dev, 0x0802, 0xFFFC);
573 backup[7] = b43_read16(dev, 0x03E2);
574 b43_write16(dev, 0x03E2, b43_read16(dev, 0x03E2) | 0x8000);
575 backup[0] = b43_radio_read16(dev, 0x007A);
576 backup[1] = b43_radio_read16(dev, 0x0052);
577 backup[2] = b43_radio_read16(dev, 0x0043);
578 backup[3] = b43_phy_read(dev, 0x0015);
579 backup[4] = b43_phy_read(dev, 0x005A);
580 backup[5] = b43_phy_read(dev, 0x0059);
581 backup[6] = b43_phy_read(dev, 0x0058);
582 backup[8] = b43_read16(dev, 0x03E6);
583 backup[9] = b43_read16(dev, B43_MMIO_CHANNEL_EXT);
584 if (phy->rev >= 3) {
585 backup[10] = b43_phy_read(dev, 0x002E);
586 backup[11] = b43_phy_read(dev, 0x002F);
587 backup[12] = b43_phy_read(dev, 0x080F);
588 backup[13] = b43_phy_read(dev, B43_PHY_G_LO_CONTROL);
589 backup[14] = b43_phy_read(dev, 0x0801);
590 backup[15] = b43_phy_read(dev, 0x0060);
591 backup[16] = b43_phy_read(dev, 0x0014);
592 backup[17] = b43_phy_read(dev, 0x0478);
593 b43_phy_write(dev, 0x002E, 0);
594 b43_phy_write(dev, B43_PHY_G_LO_CONTROL, 0);
595 switch (phy->rev) {
596 case 4:
597 case 6:
598 case 7:
599 b43_phy_set(dev, 0x0478, 0x0100);
600 b43_phy_set(dev, 0x0801, 0x0040);
601 break;
602 case 3:
603 case 5:
604 b43_phy_mask(dev, 0x0801, 0xFFBF);
605 break;
606 }
607 b43_phy_set(dev, 0x0060, 0x0040);
608 b43_phy_set(dev, 0x0014, 0x0200);
609 }
610 b43_radio_set(dev, 0x007A, 0x0070);
611 b43_set_all_gains(dev, 0, 8, 0);
612 b43_radio_mask(dev, 0x007A, 0x00F7);
613 if (phy->rev >= 2) {
614 b43_phy_maskset(dev, 0x0811, 0xFFCF, 0x0030);
615 b43_phy_maskset(dev, 0x0812, 0xFFCF, 0x0010);
616 }
617 b43_radio_set(dev, 0x007A, 0x0080);
618 udelay(20);
619
620 nrssi0 = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
621 if (nrssi0 >= 0x0020)
622 nrssi0 -= 0x0040;
623
624 b43_radio_mask(dev, 0x007A, 0x007F);
625 if (phy->rev >= 2) {
626 b43_phy_maskset(dev, 0x0003, 0xFF9F, 0x0040);
627 }
628
629 b43_write16(dev, B43_MMIO_CHANNEL_EXT,
630 b43_read16(dev, B43_MMIO_CHANNEL_EXT)
631 | 0x2000);
632 b43_radio_set(dev, 0x007A, 0x000F);
633 b43_phy_write(dev, 0x0015, 0xF330);
634 if (phy->rev >= 2) {
635 b43_phy_maskset(dev, 0x0812, 0xFFCF, 0x0020);
636 b43_phy_maskset(dev, 0x0811, 0xFFCF, 0x0020);
637 }
638
639 b43_set_all_gains(dev, 3, 0, 1);
640 if (phy->radio_rev == 8) {
641 b43_radio_write16(dev, 0x0043, 0x001F);
642 } else {
643 tmp = b43_radio_read16(dev, 0x0052) & 0xFF0F;
644 b43_radio_write16(dev, 0x0052, tmp | 0x0060);
645 tmp = b43_radio_read16(dev, 0x0043) & 0xFFF0;
646 b43_radio_write16(dev, 0x0043, tmp | 0x0009);
647 }
648 b43_phy_write(dev, 0x005A, 0x0480);
649 b43_phy_write(dev, 0x0059, 0x0810);
650 b43_phy_write(dev, 0x0058, 0x000D);
651 udelay(20);
652 nrssi1 = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
653 if (nrssi1 >= 0x0020)
654 nrssi1 -= 0x0040;
655 if (nrssi0 == nrssi1)
656 gphy->nrssislope = 0x00010000;
657 else
658 gphy->nrssislope = 0x00400000 / (nrssi0 - nrssi1);
659 if (nrssi0 >= -4) {
660 gphy->nrssi[0] = nrssi1;
661 gphy->nrssi[1] = nrssi0;
662 }
663 if (phy->rev >= 3) {
664 b43_phy_write(dev, 0x002E, backup[10]);
665 b43_phy_write(dev, 0x002F, backup[11]);
666 b43_phy_write(dev, 0x080F, backup[12]);
667 b43_phy_write(dev, B43_PHY_G_LO_CONTROL, backup[13]);
668 }
669 if (phy->rev >= 2) {
670 b43_phy_mask(dev, 0x0812, 0xFFCF);
671 b43_phy_mask(dev, 0x0811, 0xFFCF);
672 }
673
674 b43_radio_write16(dev, 0x007A, backup[0]);
675 b43_radio_write16(dev, 0x0052, backup[1]);
676 b43_radio_write16(dev, 0x0043, backup[2]);
677 b43_write16(dev, 0x03E2, backup[7]);
678 b43_write16(dev, 0x03E6, backup[8]);
679 b43_write16(dev, B43_MMIO_CHANNEL_EXT, backup[9]);
680 b43_phy_write(dev, 0x0015, backup[3]);
681 b43_phy_write(dev, 0x005A, backup[4]);
682 b43_phy_write(dev, 0x0059, backup[5]);
683 b43_phy_write(dev, 0x0058, backup[6]);
684 b43_synth_pu_workaround(dev, phy->channel);
685 b43_phy_set(dev, 0x0802, (0x0001 | 0x0002));
686 b43_set_original_gains(dev);
687 b43_phy_set(dev, B43_PHY_G_CRS, 0x8000);
688 if (phy->rev >= 3) {
689 b43_phy_write(dev, 0x0801, backup[14]);
690 b43_phy_write(dev, 0x0060, backup[15]);
691 b43_phy_write(dev, 0x0014, backup[16]);
692 b43_phy_write(dev, 0x0478, backup[17]);
693 }
694 b43_nrssi_mem_update(dev);
695 b43_calc_nrssi_threshold(dev);
696 }
697
b43_calc_nrssi_threshold(struct b43_wldev * dev)698 static void b43_calc_nrssi_threshold(struct b43_wldev *dev)
699 {
700 struct b43_phy *phy = &dev->phy;
701 struct b43_phy_g *gphy = phy->g;
702 s32 a, b;
703 s16 tmp16;
704 u16 tmp_u16;
705
706 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
707
708 if (!phy->gmode ||
709 !(dev->dev->bus_sprom->boardflags_lo & B43_BFL_RSSI)) {
710 tmp16 = b43_nrssi_hw_read(dev, 0x20);
711 if (tmp16 >= 0x20)
712 tmp16 -= 0x40;
713 if (tmp16 < 3) {
714 b43_phy_maskset(dev, 0x048A, 0xF000, 0x09EB);
715 } else {
716 b43_phy_maskset(dev, 0x048A, 0xF000, 0x0AED);
717 }
718 } else {
719 if (gphy->interfmode == B43_INTERFMODE_NONWLAN) {
720 a = 0xE;
721 b = 0xA;
722 } else if (!gphy->aci_wlan_automatic && gphy->aci_enable) {
723 a = 0x13;
724 b = 0x12;
725 } else {
726 a = 0xE;
727 b = 0x11;
728 }
729
730 a = a * (gphy->nrssi[1] - gphy->nrssi[0]);
731 a += (gphy->nrssi[0] << 6);
732 if (a < 32)
733 a += 31;
734 else
735 a += 32;
736 a = a >> 6;
737 a = clamp_val(a, -31, 31);
738
739 b = b * (gphy->nrssi[1] - gphy->nrssi[0]);
740 b += (gphy->nrssi[0] << 6);
741 if (b < 32)
742 b += 31;
743 else
744 b += 32;
745 b = b >> 6;
746 b = clamp_val(b, -31, 31);
747
748 tmp_u16 = b43_phy_read(dev, 0x048A) & 0xF000;
749 tmp_u16 |= ((u32) b & 0x0000003F);
750 tmp_u16 |= (((u32) a & 0x0000003F) << 6);
751 b43_phy_write(dev, 0x048A, tmp_u16);
752 }
753 }
754
755 /* Stack implementation to save/restore values from the
756 * interference mitigation code.
757 * It is save to restore values in random order.
758 */
_stack_save(u32 * _stackptr,size_t * stackidx,u8 id,u16 offset,u16 value)759 static void _stack_save(u32 *_stackptr, size_t *stackidx,
760 u8 id, u16 offset, u16 value)
761 {
762 u32 *stackptr = &(_stackptr[*stackidx]);
763
764 B43_WARN_ON(offset & 0xF000);
765 B43_WARN_ON(id & 0xF0);
766 *stackptr = offset;
767 *stackptr |= ((u32) id) << 12;
768 *stackptr |= ((u32) value) << 16;
769 (*stackidx)++;
770 B43_WARN_ON(*stackidx >= B43_INTERFSTACK_SIZE);
771 }
772
_stack_restore(u32 * stackptr,u8 id,u16 offset)773 static u16 _stack_restore(u32 *stackptr, u8 id, u16 offset)
774 {
775 size_t i;
776
777 B43_WARN_ON(offset & 0xF000);
778 B43_WARN_ON(id & 0xF0);
779 for (i = 0; i < B43_INTERFSTACK_SIZE; i++, stackptr++) {
780 if ((*stackptr & 0x00000FFF) != offset)
781 continue;
782 if (((*stackptr & 0x0000F000) >> 12) != id)
783 continue;
784 return ((*stackptr & 0xFFFF0000) >> 16);
785 }
786 B43_WARN_ON(1);
787
788 return 0;
789 }
790
791 #define phy_stacksave(offset) \
792 do { \
793 _stack_save(stack, &stackidx, 0x1, (offset), \
794 b43_phy_read(dev, (offset))); \
795 } while (0)
796 #define phy_stackrestore(offset) \
797 do { \
798 b43_phy_write(dev, (offset), \
799 _stack_restore(stack, 0x1, \
800 (offset))); \
801 } while (0)
802 #define radio_stacksave(offset) \
803 do { \
804 _stack_save(stack, &stackidx, 0x2, (offset), \
805 b43_radio_read16(dev, (offset))); \
806 } while (0)
807 #define radio_stackrestore(offset) \
808 do { \
809 b43_radio_write16(dev, (offset), \
810 _stack_restore(stack, 0x2, \
811 (offset))); \
812 } while (0)
813 #define ofdmtab_stacksave(table, offset) \
814 do { \
815 _stack_save(stack, &stackidx, 0x3, (offset)|(table), \
816 b43_ofdmtab_read16(dev, (table), (offset))); \
817 } while (0)
818 #define ofdmtab_stackrestore(table, offset) \
819 do { \
820 b43_ofdmtab_write16(dev, (table), (offset), \
821 _stack_restore(stack, 0x3, \
822 (offset)|(table))); \
823 } while (0)
824
825 static void
b43_radio_interference_mitigation_enable(struct b43_wldev * dev,int mode)826 b43_radio_interference_mitigation_enable(struct b43_wldev *dev, int mode)
827 {
828 struct b43_phy *phy = &dev->phy;
829 struct b43_phy_g *gphy = phy->g;
830 u16 tmp, flipped;
831 size_t stackidx = 0;
832 u32 *stack = gphy->interfstack;
833
834 switch (mode) {
835 case B43_INTERFMODE_NONWLAN:
836 if (phy->rev != 1) {
837 b43_phy_set(dev, 0x042B, 0x0800);
838 b43_phy_mask(dev, B43_PHY_G_CRS, ~0x4000);
839 break;
840 }
841 radio_stacksave(0x0078);
842 tmp = (b43_radio_read16(dev, 0x0078) & 0x001E);
843 B43_WARN_ON(tmp > 15);
844 flipped = bitrev4(tmp);
845 if (flipped < 10 && flipped >= 8)
846 flipped = 7;
847 else if (flipped >= 10)
848 flipped -= 3;
849 flipped = (bitrev4(flipped) << 1) | 0x0020;
850 b43_radio_write16(dev, 0x0078, flipped);
851
852 b43_calc_nrssi_threshold(dev);
853
854 phy_stacksave(0x0406);
855 b43_phy_write(dev, 0x0406, 0x7E28);
856
857 b43_phy_set(dev, 0x042B, 0x0800);
858 b43_phy_set(dev, B43_PHY_RADIO_BITFIELD, 0x1000);
859
860 phy_stacksave(0x04A0);
861 b43_phy_maskset(dev, 0x04A0, 0xC0C0, 0x0008);
862 phy_stacksave(0x04A1);
863 b43_phy_maskset(dev, 0x04A1, 0xC0C0, 0x0605);
864 phy_stacksave(0x04A2);
865 b43_phy_maskset(dev, 0x04A2, 0xC0C0, 0x0204);
866 phy_stacksave(0x04A8);
867 b43_phy_maskset(dev, 0x04A8, 0xC0C0, 0x0803);
868 phy_stacksave(0x04AB);
869 b43_phy_maskset(dev, 0x04AB, 0xC0C0, 0x0605);
870
871 phy_stacksave(0x04A7);
872 b43_phy_write(dev, 0x04A7, 0x0002);
873 phy_stacksave(0x04A3);
874 b43_phy_write(dev, 0x04A3, 0x287A);
875 phy_stacksave(0x04A9);
876 b43_phy_write(dev, 0x04A9, 0x2027);
877 phy_stacksave(0x0493);
878 b43_phy_write(dev, 0x0493, 0x32F5);
879 phy_stacksave(0x04AA);
880 b43_phy_write(dev, 0x04AA, 0x2027);
881 phy_stacksave(0x04AC);
882 b43_phy_write(dev, 0x04AC, 0x32F5);
883 break;
884 case B43_INTERFMODE_MANUALWLAN:
885 if (b43_phy_read(dev, 0x0033) & 0x0800)
886 break;
887
888 gphy->aci_enable = true;
889
890 phy_stacksave(B43_PHY_RADIO_BITFIELD);
891 phy_stacksave(B43_PHY_G_CRS);
892 if (phy->rev < 2) {
893 phy_stacksave(0x0406);
894 } else {
895 phy_stacksave(0x04C0);
896 phy_stacksave(0x04C1);
897 }
898 phy_stacksave(0x0033);
899 phy_stacksave(0x04A7);
900 phy_stacksave(0x04A3);
901 phy_stacksave(0x04A9);
902 phy_stacksave(0x04AA);
903 phy_stacksave(0x04AC);
904 phy_stacksave(0x0493);
905 phy_stacksave(0x04A1);
906 phy_stacksave(0x04A0);
907 phy_stacksave(0x04A2);
908 phy_stacksave(0x048A);
909 phy_stacksave(0x04A8);
910 phy_stacksave(0x04AB);
911 if (phy->rev == 2) {
912 phy_stacksave(0x04AD);
913 phy_stacksave(0x04AE);
914 } else if (phy->rev >= 3) {
915 phy_stacksave(0x04AD);
916 phy_stacksave(0x0415);
917 phy_stacksave(0x0416);
918 phy_stacksave(0x0417);
919 ofdmtab_stacksave(0x1A00, 0x2);
920 ofdmtab_stacksave(0x1A00, 0x3);
921 }
922 phy_stacksave(0x042B);
923 phy_stacksave(0x048C);
924
925 b43_phy_mask(dev, B43_PHY_RADIO_BITFIELD, ~0x1000);
926 b43_phy_maskset(dev, B43_PHY_G_CRS, 0xFFFC, 0x0002);
927
928 b43_phy_write(dev, 0x0033, 0x0800);
929 b43_phy_write(dev, 0x04A3, 0x2027);
930 b43_phy_write(dev, 0x04A9, 0x1CA8);
931 b43_phy_write(dev, 0x0493, 0x287A);
932 b43_phy_write(dev, 0x04AA, 0x1CA8);
933 b43_phy_write(dev, 0x04AC, 0x287A);
934
935 b43_phy_maskset(dev, 0x04A0, 0xFFC0, 0x001A);
936 b43_phy_write(dev, 0x04A7, 0x000D);
937
938 if (phy->rev < 2) {
939 b43_phy_write(dev, 0x0406, 0xFF0D);
940 } else if (phy->rev == 2) {
941 b43_phy_write(dev, 0x04C0, 0xFFFF);
942 b43_phy_write(dev, 0x04C1, 0x00A9);
943 } else {
944 b43_phy_write(dev, 0x04C0, 0x00C1);
945 b43_phy_write(dev, 0x04C1, 0x0059);
946 }
947
948 b43_phy_maskset(dev, 0x04A1, 0xC0FF, 0x1800);
949 b43_phy_maskset(dev, 0x04A1, 0xFFC0, 0x0015);
950 b43_phy_maskset(dev, 0x04A8, 0xCFFF, 0x1000);
951 b43_phy_maskset(dev, 0x04A8, 0xF0FF, 0x0A00);
952 b43_phy_maskset(dev, 0x04AB, 0xCFFF, 0x1000);
953 b43_phy_maskset(dev, 0x04AB, 0xF0FF, 0x0800);
954 b43_phy_maskset(dev, 0x04AB, 0xFFCF, 0x0010);
955 b43_phy_maskset(dev, 0x04AB, 0xFFF0, 0x0005);
956 b43_phy_maskset(dev, 0x04A8, 0xFFCF, 0x0010);
957 b43_phy_maskset(dev, 0x04A8, 0xFFF0, 0x0006);
958 b43_phy_maskset(dev, 0x04A2, 0xF0FF, 0x0800);
959 b43_phy_maskset(dev, 0x04A0, 0xF0FF, 0x0500);
960 b43_phy_maskset(dev, 0x04A2, 0xFFF0, 0x000B);
961
962 if (phy->rev >= 3) {
963 b43_phy_mask(dev, 0x048A, 0x7FFF);
964 b43_phy_maskset(dev, 0x0415, 0x8000, 0x36D8);
965 b43_phy_maskset(dev, 0x0416, 0x8000, 0x36D8);
966 b43_phy_maskset(dev, 0x0417, 0xFE00, 0x016D);
967 } else {
968 b43_phy_set(dev, 0x048A, 0x1000);
969 b43_phy_maskset(dev, 0x048A, 0x9FFF, 0x2000);
970 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_ACIW);
971 }
972 if (phy->rev >= 2) {
973 b43_phy_set(dev, 0x042B, 0x0800);
974 }
975 b43_phy_maskset(dev, 0x048C, 0xF0FF, 0x0200);
976 if (phy->rev == 2) {
977 b43_phy_maskset(dev, 0x04AE, 0xFF00, 0x007F);
978 b43_phy_maskset(dev, 0x04AD, 0x00FF, 0x1300);
979 } else if (phy->rev >= 6) {
980 b43_ofdmtab_write16(dev, 0x1A00, 0x3, 0x007F);
981 b43_ofdmtab_write16(dev, 0x1A00, 0x2, 0x007F);
982 b43_phy_mask(dev, 0x04AD, 0x00FF);
983 }
984 b43_calc_nrssi_slope(dev);
985 break;
986 default:
987 B43_WARN_ON(1);
988 }
989 }
990
991 static void
b43_radio_interference_mitigation_disable(struct b43_wldev * dev,int mode)992 b43_radio_interference_mitigation_disable(struct b43_wldev *dev, int mode)
993 {
994 struct b43_phy *phy = &dev->phy;
995 struct b43_phy_g *gphy = phy->g;
996 u32 *stack = gphy->interfstack;
997
998 switch (mode) {
999 case B43_INTERFMODE_NONWLAN:
1000 if (phy->rev != 1) {
1001 b43_phy_mask(dev, 0x042B, ~0x0800);
1002 b43_phy_set(dev, B43_PHY_G_CRS, 0x4000);
1003 break;
1004 }
1005 radio_stackrestore(0x0078);
1006 b43_calc_nrssi_threshold(dev);
1007 phy_stackrestore(0x0406);
1008 b43_phy_mask(dev, 0x042B, ~0x0800);
1009 if (!dev->bad_frames_preempt) {
1010 b43_phy_mask(dev, B43_PHY_RADIO_BITFIELD, ~(1 << 11));
1011 }
1012 b43_phy_set(dev, B43_PHY_G_CRS, 0x4000);
1013 phy_stackrestore(0x04A0);
1014 phy_stackrestore(0x04A1);
1015 phy_stackrestore(0x04A2);
1016 phy_stackrestore(0x04A8);
1017 phy_stackrestore(0x04AB);
1018 phy_stackrestore(0x04A7);
1019 phy_stackrestore(0x04A3);
1020 phy_stackrestore(0x04A9);
1021 phy_stackrestore(0x0493);
1022 phy_stackrestore(0x04AA);
1023 phy_stackrestore(0x04AC);
1024 break;
1025 case B43_INTERFMODE_MANUALWLAN:
1026 if (!(b43_phy_read(dev, 0x0033) & 0x0800))
1027 break;
1028
1029 gphy->aci_enable = false;
1030
1031 phy_stackrestore(B43_PHY_RADIO_BITFIELD);
1032 phy_stackrestore(B43_PHY_G_CRS);
1033 phy_stackrestore(0x0033);
1034 phy_stackrestore(0x04A3);
1035 phy_stackrestore(0x04A9);
1036 phy_stackrestore(0x0493);
1037 phy_stackrestore(0x04AA);
1038 phy_stackrestore(0x04AC);
1039 phy_stackrestore(0x04A0);
1040 phy_stackrestore(0x04A7);
1041 if (phy->rev >= 2) {
1042 phy_stackrestore(0x04C0);
1043 phy_stackrestore(0x04C1);
1044 } else
1045 phy_stackrestore(0x0406);
1046 phy_stackrestore(0x04A1);
1047 phy_stackrestore(0x04AB);
1048 phy_stackrestore(0x04A8);
1049 if (phy->rev == 2) {
1050 phy_stackrestore(0x04AD);
1051 phy_stackrestore(0x04AE);
1052 } else if (phy->rev >= 3) {
1053 phy_stackrestore(0x04AD);
1054 phy_stackrestore(0x0415);
1055 phy_stackrestore(0x0416);
1056 phy_stackrestore(0x0417);
1057 ofdmtab_stackrestore(0x1A00, 0x2);
1058 ofdmtab_stackrestore(0x1A00, 0x3);
1059 }
1060 phy_stackrestore(0x04A2);
1061 phy_stackrestore(0x048A);
1062 phy_stackrestore(0x042B);
1063 phy_stackrestore(0x048C);
1064 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_ACIW);
1065 b43_calc_nrssi_slope(dev);
1066 break;
1067 default:
1068 B43_WARN_ON(1);
1069 }
1070 }
1071
1072 #undef phy_stacksave
1073 #undef phy_stackrestore
1074 #undef radio_stacksave
1075 #undef radio_stackrestore
1076 #undef ofdmtab_stacksave
1077 #undef ofdmtab_stackrestore
1078
b43_radio_core_calibration_value(struct b43_wldev * dev)1079 static u16 b43_radio_core_calibration_value(struct b43_wldev *dev)
1080 {
1081 u16 reg, index, ret;
1082
1083 static const u8 rcc_table[] = {
1084 0x02, 0x03, 0x01, 0x0F,
1085 0x06, 0x07, 0x05, 0x0F,
1086 0x0A, 0x0B, 0x09, 0x0F,
1087 0x0E, 0x0F, 0x0D, 0x0F,
1088 };
1089
1090 reg = b43_radio_read16(dev, 0x60);
1091 index = (reg & 0x001E) >> 1;
1092 ret = rcc_table[index] << 1;
1093 ret |= (reg & 0x0001);
1094 ret |= 0x0020;
1095
1096 return ret;
1097 }
1098
1099 #define LPD(L, P, D) (((L) << 2) | ((P) << 1) | ((D) << 0))
radio2050_rfover_val(struct b43_wldev * dev,u16 phy_register,unsigned int lpd)1100 static u16 radio2050_rfover_val(struct b43_wldev *dev,
1101 u16 phy_register, unsigned int lpd)
1102 {
1103 struct b43_phy *phy = &dev->phy;
1104 struct b43_phy_g *gphy = phy->g;
1105 struct ssb_sprom *sprom = dev->dev->bus_sprom;
1106
1107 if (!phy->gmode)
1108 return 0;
1109
1110 if (has_loopback_gain(phy)) {
1111 int max_lb_gain = gphy->max_lb_gain;
1112 u16 extlna;
1113 u16 i;
1114
1115 if (phy->radio_rev == 8)
1116 max_lb_gain += 0x3E;
1117 else
1118 max_lb_gain += 0x26;
1119 if (max_lb_gain >= 0x46) {
1120 extlna = 0x3000;
1121 max_lb_gain -= 0x46;
1122 } else if (max_lb_gain >= 0x3A) {
1123 extlna = 0x1000;
1124 max_lb_gain -= 0x3A;
1125 } else if (max_lb_gain >= 0x2E) {
1126 extlna = 0x2000;
1127 max_lb_gain -= 0x2E;
1128 } else {
1129 extlna = 0;
1130 max_lb_gain -= 0x10;
1131 }
1132
1133 for (i = 0; i < 16; i++) {
1134 max_lb_gain -= (i * 6);
1135 if (max_lb_gain < 6)
1136 break;
1137 }
1138
1139 if ((phy->rev < 7) ||
1140 !(sprom->boardflags_lo & B43_BFL_EXTLNA)) {
1141 if (phy_register == B43_PHY_RFOVER) {
1142 return 0x1B3;
1143 } else if (phy_register == B43_PHY_RFOVERVAL) {
1144 extlna |= (i << 8);
1145 switch (lpd) {
1146 case LPD(0, 1, 1):
1147 return 0x0F92;
1148 case LPD(0, 0, 1):
1149 case LPD(1, 0, 1):
1150 return (0x0092 | extlna);
1151 case LPD(1, 0, 0):
1152 return (0x0093 | extlna);
1153 }
1154 B43_WARN_ON(1);
1155 }
1156 B43_WARN_ON(1);
1157 } else {
1158 if (phy_register == B43_PHY_RFOVER) {
1159 return 0x9B3;
1160 } else if (phy_register == B43_PHY_RFOVERVAL) {
1161 if (extlna)
1162 extlna |= 0x8000;
1163 extlna |= (i << 8);
1164 switch (lpd) {
1165 case LPD(0, 1, 1):
1166 return 0x8F92;
1167 case LPD(0, 0, 1):
1168 return (0x8092 | extlna);
1169 case LPD(1, 0, 1):
1170 return (0x2092 | extlna);
1171 case LPD(1, 0, 0):
1172 return (0x2093 | extlna);
1173 }
1174 B43_WARN_ON(1);
1175 }
1176 B43_WARN_ON(1);
1177 }
1178 } else {
1179 if ((phy->rev < 7) ||
1180 !(sprom->boardflags_lo & B43_BFL_EXTLNA)) {
1181 if (phy_register == B43_PHY_RFOVER) {
1182 return 0x1B3;
1183 } else if (phy_register == B43_PHY_RFOVERVAL) {
1184 switch (lpd) {
1185 case LPD(0, 1, 1):
1186 return 0x0FB2;
1187 case LPD(0, 0, 1):
1188 return 0x00B2;
1189 case LPD(1, 0, 1):
1190 return 0x30B2;
1191 case LPD(1, 0, 0):
1192 return 0x30B3;
1193 }
1194 B43_WARN_ON(1);
1195 }
1196 B43_WARN_ON(1);
1197 } else {
1198 if (phy_register == B43_PHY_RFOVER) {
1199 return 0x9B3;
1200 } else if (phy_register == B43_PHY_RFOVERVAL) {
1201 switch (lpd) {
1202 case LPD(0, 1, 1):
1203 return 0x8FB2;
1204 case LPD(0, 0, 1):
1205 return 0x80B2;
1206 case LPD(1, 0, 1):
1207 return 0x20B2;
1208 case LPD(1, 0, 0):
1209 return 0x20B3;
1210 }
1211 B43_WARN_ON(1);
1212 }
1213 B43_WARN_ON(1);
1214 }
1215 }
1216 return 0;
1217 }
1218
1219 struct init2050_saved_values {
1220 /* Core registers */
1221 u16 reg_3EC;
1222 u16 reg_3E6;
1223 u16 reg_3F4;
1224 /* Radio registers */
1225 u16 radio_43;
1226 u16 radio_51;
1227 u16 radio_52;
1228 /* PHY registers */
1229 u16 phy_pgactl;
1230 u16 phy_cck_5A;
1231 u16 phy_cck_59;
1232 u16 phy_cck_58;
1233 u16 phy_cck_30;
1234 u16 phy_rfover;
1235 u16 phy_rfoverval;
1236 u16 phy_analogover;
1237 u16 phy_analogoverval;
1238 u16 phy_crs0;
1239 u16 phy_classctl;
1240 u16 phy_lo_mask;
1241 u16 phy_lo_ctl;
1242 u16 phy_syncctl;
1243 };
1244
b43_radio_init2050(struct b43_wldev * dev)1245 static u16 b43_radio_init2050(struct b43_wldev *dev)
1246 {
1247 struct b43_phy *phy = &dev->phy;
1248 struct init2050_saved_values sav;
1249 u16 rcc;
1250 u16 radio78;
1251 u16 ret;
1252 u16 i, j;
1253 u32 tmp1 = 0, tmp2 = 0;
1254
1255 memset(&sav, 0, sizeof(sav)); /* get rid of "may be used uninitialized..." */
1256
1257 sav.radio_43 = b43_radio_read16(dev, 0x43);
1258 sav.radio_51 = b43_radio_read16(dev, 0x51);
1259 sav.radio_52 = b43_radio_read16(dev, 0x52);
1260 sav.phy_pgactl = b43_phy_read(dev, B43_PHY_PGACTL);
1261 sav.phy_cck_5A = b43_phy_read(dev, B43_PHY_CCK(0x5A));
1262 sav.phy_cck_59 = b43_phy_read(dev, B43_PHY_CCK(0x59));
1263 sav.phy_cck_58 = b43_phy_read(dev, B43_PHY_CCK(0x58));
1264
1265 if (phy->type == B43_PHYTYPE_B) {
1266 sav.phy_cck_30 = b43_phy_read(dev, B43_PHY_CCK(0x30));
1267 sav.reg_3EC = b43_read16(dev, 0x3EC);
1268
1269 b43_phy_write(dev, B43_PHY_CCK(0x30), 0xFF);
1270 b43_write16(dev, 0x3EC, 0x3F3F);
1271 } else if (phy->gmode || phy->rev >= 2) {
1272 sav.phy_rfover = b43_phy_read(dev, B43_PHY_RFOVER);
1273 sav.phy_rfoverval = b43_phy_read(dev, B43_PHY_RFOVERVAL);
1274 sav.phy_analogover = b43_phy_read(dev, B43_PHY_ANALOGOVER);
1275 sav.phy_analogoverval =
1276 b43_phy_read(dev, B43_PHY_ANALOGOVERVAL);
1277 sav.phy_crs0 = b43_phy_read(dev, B43_PHY_CRS0);
1278 sav.phy_classctl = b43_phy_read(dev, B43_PHY_CLASSCTL);
1279
1280 b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0003);
1281 b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFC);
1282 b43_phy_mask(dev, B43_PHY_CRS0, 0x7FFF);
1283 b43_phy_mask(dev, B43_PHY_CLASSCTL, 0xFFFC);
1284 if (has_loopback_gain(phy)) {
1285 sav.phy_lo_mask = b43_phy_read(dev, B43_PHY_LO_MASK);
1286 sav.phy_lo_ctl = b43_phy_read(dev, B43_PHY_LO_CTL);
1287
1288 if (phy->rev >= 3)
1289 b43_phy_write(dev, B43_PHY_LO_MASK, 0xC020);
1290 else
1291 b43_phy_write(dev, B43_PHY_LO_MASK, 0x8020);
1292 b43_phy_write(dev, B43_PHY_LO_CTL, 0);
1293 }
1294
1295 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1296 radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
1297 LPD(0, 1, 1)));
1298 b43_phy_write(dev, B43_PHY_RFOVER,
1299 radio2050_rfover_val(dev, B43_PHY_RFOVER, 0));
1300 }
1301 b43_write16(dev, 0x3E2, b43_read16(dev, 0x3E2) | 0x8000);
1302
1303 sav.phy_syncctl = b43_phy_read(dev, B43_PHY_SYNCCTL);
1304 b43_phy_mask(dev, B43_PHY_SYNCCTL, 0xFF7F);
1305 sav.reg_3E6 = b43_read16(dev, 0x3E6);
1306 sav.reg_3F4 = b43_read16(dev, 0x3F4);
1307
1308 if (phy->analog == 0) {
1309 b43_write16(dev, 0x03E6, 0x0122);
1310 } else {
1311 if (phy->analog >= 2) {
1312 b43_phy_maskset(dev, B43_PHY_CCK(0x03), 0xFFBF, 0x40);
1313 }
1314 b43_write16(dev, B43_MMIO_CHANNEL_EXT,
1315 (b43_read16(dev, B43_MMIO_CHANNEL_EXT) | 0x2000));
1316 }
1317
1318 rcc = b43_radio_core_calibration_value(dev);
1319
1320 if (phy->type == B43_PHYTYPE_B)
1321 b43_radio_write16(dev, 0x78, 0x26);
1322 if (phy->gmode || phy->rev >= 2) {
1323 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1324 radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
1325 LPD(0, 1, 1)));
1326 }
1327 b43_phy_write(dev, B43_PHY_PGACTL, 0xBFAF);
1328 b43_phy_write(dev, B43_PHY_CCK(0x2B), 0x1403);
1329 if (phy->gmode || phy->rev >= 2) {
1330 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1331 radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
1332 LPD(0, 0, 1)));
1333 }
1334 b43_phy_write(dev, B43_PHY_PGACTL, 0xBFA0);
1335 b43_radio_set(dev, 0x51, 0x0004);
1336 if (phy->radio_rev == 8) {
1337 b43_radio_write16(dev, 0x43, 0x1F);
1338 } else {
1339 b43_radio_write16(dev, 0x52, 0);
1340 b43_radio_maskset(dev, 0x43, 0xFFF0, 0x0009);
1341 }
1342 b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
1343
1344 for (i = 0; i < 16; i++) {
1345 b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0480);
1346 b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
1347 b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
1348 if (phy->gmode || phy->rev >= 2) {
1349 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1350 radio2050_rfover_val(dev,
1351 B43_PHY_RFOVERVAL,
1352 LPD(1, 0, 1)));
1353 }
1354 b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
1355 udelay(10);
1356 if (phy->gmode || phy->rev >= 2) {
1357 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1358 radio2050_rfover_val(dev,
1359 B43_PHY_RFOVERVAL,
1360 LPD(1, 0, 1)));
1361 }
1362 b43_phy_write(dev, B43_PHY_PGACTL, 0xEFB0);
1363 udelay(10);
1364 if (phy->gmode || phy->rev >= 2) {
1365 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1366 radio2050_rfover_val(dev,
1367 B43_PHY_RFOVERVAL,
1368 LPD(1, 0, 0)));
1369 }
1370 b43_phy_write(dev, B43_PHY_PGACTL, 0xFFF0);
1371 udelay(20);
1372 tmp1 += b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
1373 b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
1374 if (phy->gmode || phy->rev >= 2) {
1375 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1376 radio2050_rfover_val(dev,
1377 B43_PHY_RFOVERVAL,
1378 LPD(1, 0, 1)));
1379 }
1380 b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
1381 }
1382 udelay(10);
1383
1384 b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
1385 tmp1++;
1386 tmp1 >>= 9;
1387
1388 for (i = 0; i < 16; i++) {
1389 radio78 = (bitrev4(i) << 1) | 0x0020;
1390 b43_radio_write16(dev, 0x78, radio78);
1391 udelay(10);
1392 for (j = 0; j < 16; j++) {
1393 b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0D80);
1394 b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
1395 b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
1396 if (phy->gmode || phy->rev >= 2) {
1397 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1398 radio2050_rfover_val(dev,
1399 B43_PHY_RFOVERVAL,
1400 LPD(1, 0,
1401 1)));
1402 }
1403 b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
1404 udelay(10);
1405 if (phy->gmode || phy->rev >= 2) {
1406 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1407 radio2050_rfover_val(dev,
1408 B43_PHY_RFOVERVAL,
1409 LPD(1, 0,
1410 1)));
1411 }
1412 b43_phy_write(dev, B43_PHY_PGACTL, 0xEFB0);
1413 udelay(10);
1414 if (phy->gmode || phy->rev >= 2) {
1415 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1416 radio2050_rfover_val(dev,
1417 B43_PHY_RFOVERVAL,
1418 LPD(1, 0,
1419 0)));
1420 }
1421 b43_phy_write(dev, B43_PHY_PGACTL, 0xFFF0);
1422 udelay(10);
1423 tmp2 += b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
1424 b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
1425 if (phy->gmode || phy->rev >= 2) {
1426 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1427 radio2050_rfover_val(dev,
1428 B43_PHY_RFOVERVAL,
1429 LPD(1, 0,
1430 1)));
1431 }
1432 b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
1433 }
1434 tmp2++;
1435 tmp2 >>= 8;
1436 if (tmp1 < tmp2)
1437 break;
1438 }
1439
1440 /* Restore the registers */
1441 b43_phy_write(dev, B43_PHY_PGACTL, sav.phy_pgactl);
1442 b43_radio_write16(dev, 0x51, sav.radio_51);
1443 b43_radio_write16(dev, 0x52, sav.radio_52);
1444 b43_radio_write16(dev, 0x43, sav.radio_43);
1445 b43_phy_write(dev, B43_PHY_CCK(0x5A), sav.phy_cck_5A);
1446 b43_phy_write(dev, B43_PHY_CCK(0x59), sav.phy_cck_59);
1447 b43_phy_write(dev, B43_PHY_CCK(0x58), sav.phy_cck_58);
1448 b43_write16(dev, 0x3E6, sav.reg_3E6);
1449 if (phy->analog != 0)
1450 b43_write16(dev, 0x3F4, sav.reg_3F4);
1451 b43_phy_write(dev, B43_PHY_SYNCCTL, sav.phy_syncctl);
1452 b43_synth_pu_workaround(dev, phy->channel);
1453 if (phy->type == B43_PHYTYPE_B) {
1454 b43_phy_write(dev, B43_PHY_CCK(0x30), sav.phy_cck_30);
1455 b43_write16(dev, 0x3EC, sav.reg_3EC);
1456 } else if (phy->gmode) {
1457 b43_write16(dev, B43_MMIO_PHY_RADIO,
1458 b43_read16(dev, B43_MMIO_PHY_RADIO)
1459 & 0x7FFF);
1460 b43_phy_write(dev, B43_PHY_RFOVER, sav.phy_rfover);
1461 b43_phy_write(dev, B43_PHY_RFOVERVAL, sav.phy_rfoverval);
1462 b43_phy_write(dev, B43_PHY_ANALOGOVER, sav.phy_analogover);
1463 b43_phy_write(dev, B43_PHY_ANALOGOVERVAL,
1464 sav.phy_analogoverval);
1465 b43_phy_write(dev, B43_PHY_CRS0, sav.phy_crs0);
1466 b43_phy_write(dev, B43_PHY_CLASSCTL, sav.phy_classctl);
1467 if (has_loopback_gain(phy)) {
1468 b43_phy_write(dev, B43_PHY_LO_MASK, sav.phy_lo_mask);
1469 b43_phy_write(dev, B43_PHY_LO_CTL, sav.phy_lo_ctl);
1470 }
1471 }
1472 if (i > 15)
1473 ret = radio78;
1474 else
1475 ret = rcc;
1476
1477 return ret;
1478 }
1479
b43_phy_initb5(struct b43_wldev * dev)1480 static void b43_phy_initb5(struct b43_wldev *dev)
1481 {
1482 struct b43_phy *phy = &dev->phy;
1483 struct b43_phy_g *gphy = phy->g;
1484 u16 offset, value;
1485 u8 old_channel;
1486
1487 if (phy->analog == 1) {
1488 b43_radio_set(dev, 0x007A, 0x0050);
1489 }
1490 if ((dev->dev->board_vendor != SSB_BOARDVENDOR_BCM) &&
1491 (dev->dev->board_type != SSB_BOARD_BU4306)) {
1492 value = 0x2120;
1493 for (offset = 0x00A8; offset < 0x00C7; offset++) {
1494 b43_phy_write(dev, offset, value);
1495 value += 0x202;
1496 }
1497 }
1498 b43_phy_maskset(dev, 0x0035, 0xF0FF, 0x0700);
1499 if (phy->radio_ver == 0x2050)
1500 b43_phy_write(dev, 0x0038, 0x0667);
1501
1502 if (phy->gmode || phy->rev >= 2) {
1503 if (phy->radio_ver == 0x2050) {
1504 b43_radio_set(dev, 0x007A, 0x0020);
1505 b43_radio_set(dev, 0x0051, 0x0004);
1506 }
1507 b43_write16(dev, B43_MMIO_PHY_RADIO, 0x0000);
1508
1509 b43_phy_set(dev, 0x0802, 0x0100);
1510 b43_phy_set(dev, 0x042B, 0x2000);
1511
1512 b43_phy_write(dev, 0x001C, 0x186A);
1513
1514 b43_phy_maskset(dev, 0x0013, 0x00FF, 0x1900);
1515 b43_phy_maskset(dev, 0x0035, 0xFFC0, 0x0064);
1516 b43_phy_maskset(dev, 0x005D, 0xFF80, 0x000A);
1517 }
1518
1519 if (dev->bad_frames_preempt) {
1520 b43_phy_set(dev, B43_PHY_RADIO_BITFIELD, (1 << 11));
1521 }
1522
1523 if (phy->analog == 1) {
1524 b43_phy_write(dev, 0x0026, 0xCE00);
1525 b43_phy_write(dev, 0x0021, 0x3763);
1526 b43_phy_write(dev, 0x0022, 0x1BC3);
1527 b43_phy_write(dev, 0x0023, 0x06F9);
1528 b43_phy_write(dev, 0x0024, 0x037E);
1529 } else
1530 b43_phy_write(dev, 0x0026, 0xCC00);
1531 b43_phy_write(dev, 0x0030, 0x00C6);
1532 b43_write16(dev, 0x03EC, 0x3F22);
1533
1534 if (phy->analog == 1)
1535 b43_phy_write(dev, 0x0020, 0x3E1C);
1536 else
1537 b43_phy_write(dev, 0x0020, 0x301C);
1538
1539 if (phy->analog == 0)
1540 b43_write16(dev, 0x03E4, 0x3000);
1541
1542 old_channel = phy->channel;
1543 /* Force to channel 7, even if not supported. */
1544 b43_gphy_channel_switch(dev, 7, 0);
1545
1546 if (phy->radio_ver != 0x2050) {
1547 b43_radio_write16(dev, 0x0075, 0x0080);
1548 b43_radio_write16(dev, 0x0079, 0x0081);
1549 }
1550
1551 b43_radio_write16(dev, 0x0050, 0x0020);
1552 b43_radio_write16(dev, 0x0050, 0x0023);
1553
1554 if (phy->radio_ver == 0x2050) {
1555 b43_radio_write16(dev, 0x0050, 0x0020);
1556 b43_radio_write16(dev, 0x005A, 0x0070);
1557 }
1558
1559 b43_radio_write16(dev, 0x005B, 0x007B);
1560 b43_radio_write16(dev, 0x005C, 0x00B0);
1561
1562 b43_radio_set(dev, 0x007A, 0x0007);
1563
1564 b43_gphy_channel_switch(dev, old_channel, 0);
1565
1566 b43_phy_write(dev, 0x0014, 0x0080);
1567 b43_phy_write(dev, 0x0032, 0x00CA);
1568 b43_phy_write(dev, 0x002A, 0x88A3);
1569
1570 b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt, gphy->tx_control);
1571
1572 if (phy->radio_ver == 0x2050)
1573 b43_radio_write16(dev, 0x005D, 0x000D);
1574
1575 b43_write16(dev, 0x03E4, (b43_read16(dev, 0x03E4) & 0xFFC0) | 0x0004);
1576 }
1577
1578 /* https://bcm-v4.sipsolutions.net/802.11/PHY/Init/B6 */
b43_phy_initb6(struct b43_wldev * dev)1579 static void b43_phy_initb6(struct b43_wldev *dev)
1580 {
1581 struct b43_phy *phy = &dev->phy;
1582 struct b43_phy_g *gphy = phy->g;
1583 u16 offset, val;
1584 u8 old_channel;
1585
1586 b43_phy_write(dev, 0x003E, 0x817A);
1587 b43_radio_write16(dev, 0x007A,
1588 (b43_radio_read16(dev, 0x007A) | 0x0058));
1589 if (phy->radio_rev == 4 || phy->radio_rev == 5) {
1590 b43_radio_write16(dev, 0x51, 0x37);
1591 b43_radio_write16(dev, 0x52, 0x70);
1592 b43_radio_write16(dev, 0x53, 0xB3);
1593 b43_radio_write16(dev, 0x54, 0x9B);
1594 b43_radio_write16(dev, 0x5A, 0x88);
1595 b43_radio_write16(dev, 0x5B, 0x88);
1596 b43_radio_write16(dev, 0x5D, 0x88);
1597 b43_radio_write16(dev, 0x5E, 0x88);
1598 b43_radio_write16(dev, 0x7D, 0x88);
1599 b43_hf_write(dev, b43_hf_read(dev)
1600 | B43_HF_TSSIRPSMW);
1601 }
1602 B43_WARN_ON(phy->radio_rev == 6 || phy->radio_rev == 7); /* We had code for these revs here... */
1603 if (phy->radio_rev == 8) {
1604 b43_radio_write16(dev, 0x51, 0);
1605 b43_radio_write16(dev, 0x52, 0x40);
1606 b43_radio_write16(dev, 0x53, 0xB7);
1607 b43_radio_write16(dev, 0x54, 0x98);
1608 b43_radio_write16(dev, 0x5A, 0x88);
1609 b43_radio_write16(dev, 0x5B, 0x6B);
1610 b43_radio_write16(dev, 0x5C, 0x0F);
1611 if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_ALTIQ) {
1612 b43_radio_write16(dev, 0x5D, 0xFA);
1613 b43_radio_write16(dev, 0x5E, 0xD8);
1614 } else {
1615 b43_radio_write16(dev, 0x5D, 0xF5);
1616 b43_radio_write16(dev, 0x5E, 0xB8);
1617 }
1618 b43_radio_write16(dev, 0x0073, 0x0003);
1619 b43_radio_write16(dev, 0x007D, 0x00A8);
1620 b43_radio_write16(dev, 0x007C, 0x0001);
1621 b43_radio_write16(dev, 0x007E, 0x0008);
1622 }
1623 val = 0x1E1F;
1624 for (offset = 0x0088; offset < 0x0098; offset++) {
1625 b43_phy_write(dev, offset, val);
1626 val -= 0x0202;
1627 }
1628 val = 0x3E3F;
1629 for (offset = 0x0098; offset < 0x00A8; offset++) {
1630 b43_phy_write(dev, offset, val);
1631 val -= 0x0202;
1632 }
1633 val = 0x2120;
1634 for (offset = 0x00A8; offset < 0x00C8; offset++) {
1635 b43_phy_write(dev, offset, (val & 0x3F3F));
1636 val += 0x0202;
1637 }
1638 if (phy->type == B43_PHYTYPE_G) {
1639 b43_radio_set(dev, 0x007A, 0x0020);
1640 b43_radio_set(dev, 0x0051, 0x0004);
1641 b43_phy_set(dev, 0x0802, 0x0100);
1642 b43_phy_set(dev, 0x042B, 0x2000);
1643 b43_phy_write(dev, 0x5B, 0);
1644 b43_phy_write(dev, 0x5C, 0);
1645 }
1646
1647 old_channel = phy->channel;
1648 if (old_channel >= 8)
1649 b43_gphy_channel_switch(dev, 1, 0);
1650 else
1651 b43_gphy_channel_switch(dev, 13, 0);
1652
1653 b43_radio_write16(dev, 0x0050, 0x0020);
1654 b43_radio_write16(dev, 0x0050, 0x0023);
1655 udelay(40);
1656 if (phy->radio_rev < 6 || phy->radio_rev == 8) {
1657 b43_radio_write16(dev, 0x7C, (b43_radio_read16(dev, 0x7C)
1658 | 0x0002));
1659 b43_radio_write16(dev, 0x50, 0x20);
1660 }
1661 if (phy->radio_rev <= 2) {
1662 b43_radio_write16(dev, 0x50, 0x20);
1663 b43_radio_write16(dev, 0x5A, 0x70);
1664 b43_radio_write16(dev, 0x5B, 0x7B);
1665 b43_radio_write16(dev, 0x5C, 0xB0);
1666 }
1667 b43_radio_maskset(dev, 0x007A, 0x00F8, 0x0007);
1668
1669 b43_gphy_channel_switch(dev, old_channel, 0);
1670
1671 b43_phy_write(dev, 0x0014, 0x0200);
1672 if (phy->radio_rev >= 6)
1673 b43_phy_write(dev, 0x2A, 0x88C2);
1674 else
1675 b43_phy_write(dev, 0x2A, 0x8AC0);
1676 b43_phy_write(dev, 0x0038, 0x0668);
1677 b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt, gphy->tx_control);
1678 if (phy->radio_rev == 4 || phy->radio_rev == 5)
1679 b43_phy_maskset(dev, 0x5D, 0xFF80, 0x0003);
1680 if (phy->radio_rev <= 2)
1681 b43_radio_write16(dev, 0x005D, 0x000D);
1682
1683 if (phy->analog == 4) {
1684 b43_write16(dev, 0x3E4, 9);
1685 b43_phy_mask(dev, 0x61, 0x0FFF);
1686 } else {
1687 b43_phy_maskset(dev, 0x0002, 0xFFC0, 0x0004);
1688 }
1689 if (phy->type == B43_PHYTYPE_B)
1690 B43_WARN_ON(1);
1691 else if (phy->type == B43_PHYTYPE_G)
1692 b43_write16(dev, 0x03E6, 0x0);
1693 }
1694
b43_calc_loopback_gain(struct b43_wldev * dev)1695 static void b43_calc_loopback_gain(struct b43_wldev *dev)
1696 {
1697 struct b43_phy *phy = &dev->phy;
1698 struct b43_phy_g *gphy = phy->g;
1699 u16 backup_phy[16] = { 0 };
1700 u16 backup_radio[3];
1701 u16 backup_bband;
1702 u16 i, j, loop_i_max;
1703 u16 trsw_rx;
1704 u16 loop1_outer_done, loop1_inner_done;
1705
1706 backup_phy[0] = b43_phy_read(dev, B43_PHY_CRS0);
1707 backup_phy[1] = b43_phy_read(dev, B43_PHY_CCKBBANDCFG);
1708 backup_phy[2] = b43_phy_read(dev, B43_PHY_RFOVER);
1709 backup_phy[3] = b43_phy_read(dev, B43_PHY_RFOVERVAL);
1710 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
1711 backup_phy[4] = b43_phy_read(dev, B43_PHY_ANALOGOVER);
1712 backup_phy[5] = b43_phy_read(dev, B43_PHY_ANALOGOVERVAL);
1713 }
1714 backup_phy[6] = b43_phy_read(dev, B43_PHY_CCK(0x5A));
1715 backup_phy[7] = b43_phy_read(dev, B43_PHY_CCK(0x59));
1716 backup_phy[8] = b43_phy_read(dev, B43_PHY_CCK(0x58));
1717 backup_phy[9] = b43_phy_read(dev, B43_PHY_CCK(0x0A));
1718 backup_phy[10] = b43_phy_read(dev, B43_PHY_CCK(0x03));
1719 backup_phy[11] = b43_phy_read(dev, B43_PHY_LO_MASK);
1720 backup_phy[12] = b43_phy_read(dev, B43_PHY_LO_CTL);
1721 backup_phy[13] = b43_phy_read(dev, B43_PHY_CCK(0x2B));
1722 backup_phy[14] = b43_phy_read(dev, B43_PHY_PGACTL);
1723 backup_phy[15] = b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
1724 backup_bband = gphy->bbatt.att;
1725 backup_radio[0] = b43_radio_read16(dev, 0x52);
1726 backup_radio[1] = b43_radio_read16(dev, 0x43);
1727 backup_radio[2] = b43_radio_read16(dev, 0x7A);
1728
1729 b43_phy_mask(dev, B43_PHY_CRS0, 0x3FFF);
1730 b43_phy_set(dev, B43_PHY_CCKBBANDCFG, 0x8000);
1731 b43_phy_set(dev, B43_PHY_RFOVER, 0x0002);
1732 b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xFFFD);
1733 b43_phy_set(dev, B43_PHY_RFOVER, 0x0001);
1734 b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xFFFE);
1735 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
1736 b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0001);
1737 b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFE);
1738 b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0002);
1739 b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFD);
1740 }
1741 b43_phy_set(dev, B43_PHY_RFOVER, 0x000C);
1742 b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x000C);
1743 b43_phy_set(dev, B43_PHY_RFOVER, 0x0030);
1744 b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xFFCF, 0x10);
1745
1746 b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0780);
1747 b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
1748 b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
1749
1750 b43_phy_set(dev, B43_PHY_CCK(0x0A), 0x2000);
1751 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
1752 b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0004);
1753 b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFB);
1754 }
1755 b43_phy_maskset(dev, B43_PHY_CCK(0x03), 0xFF9F, 0x40);
1756
1757 if (phy->radio_rev == 8) {
1758 b43_radio_write16(dev, 0x43, 0x000F);
1759 } else {
1760 b43_radio_write16(dev, 0x52, 0);
1761 b43_radio_maskset(dev, 0x43, 0xFFF0, 0x9);
1762 }
1763 b43_gphy_set_baseband_attenuation(dev, 11);
1764
1765 if (phy->rev >= 3)
1766 b43_phy_write(dev, B43_PHY_LO_MASK, 0xC020);
1767 else
1768 b43_phy_write(dev, B43_PHY_LO_MASK, 0x8020);
1769 b43_phy_write(dev, B43_PHY_LO_CTL, 0);
1770
1771 b43_phy_maskset(dev, B43_PHY_CCK(0x2B), 0xFFC0, 0x01);
1772 b43_phy_maskset(dev, B43_PHY_CCK(0x2B), 0xC0FF, 0x800);
1773
1774 b43_phy_set(dev, B43_PHY_RFOVER, 0x0100);
1775 b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xCFFF);
1776
1777 if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_EXTLNA) {
1778 if (phy->rev >= 7) {
1779 b43_phy_set(dev, B43_PHY_RFOVER, 0x0800);
1780 b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x8000);
1781 }
1782 }
1783 b43_radio_mask(dev, 0x7A, 0x00F7);
1784
1785 j = 0;
1786 loop_i_max = (phy->radio_rev == 8) ? 15 : 9;
1787 for (i = 0; i < loop_i_max; i++) {
1788 for (j = 0; j < 16; j++) {
1789 b43_radio_write16(dev, 0x43, i);
1790 b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xF0FF, (j << 8));
1791 b43_phy_maskset(dev, B43_PHY_PGACTL, 0x0FFF, 0xA000);
1792 b43_phy_set(dev, B43_PHY_PGACTL, 0xF000);
1793 udelay(20);
1794 if (b43_phy_read(dev, B43_PHY_LO_LEAKAGE) >= 0xDFC)
1795 goto exit_loop1;
1796 }
1797 }
1798 exit_loop1:
1799 loop1_outer_done = i;
1800 loop1_inner_done = j;
1801 if (j >= 8) {
1802 b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x30);
1803 trsw_rx = 0x1B;
1804 for (j = j - 8; j < 16; j++) {
1805 b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xF0FF, (j << 8));
1806 b43_phy_maskset(dev, B43_PHY_PGACTL, 0x0FFF, 0xA000);
1807 b43_phy_set(dev, B43_PHY_PGACTL, 0xF000);
1808 udelay(20);
1809 trsw_rx -= 3;
1810 if (b43_phy_read(dev, B43_PHY_LO_LEAKAGE) >= 0xDFC)
1811 goto exit_loop2;
1812 }
1813 } else
1814 trsw_rx = 0x18;
1815 exit_loop2:
1816
1817 if (phy->rev != 1) { /* Not in specs, but needed to prevent PPC machine check */
1818 b43_phy_write(dev, B43_PHY_ANALOGOVER, backup_phy[4]);
1819 b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, backup_phy[5]);
1820 }
1821 b43_phy_write(dev, B43_PHY_CCK(0x5A), backup_phy[6]);
1822 b43_phy_write(dev, B43_PHY_CCK(0x59), backup_phy[7]);
1823 b43_phy_write(dev, B43_PHY_CCK(0x58), backup_phy[8]);
1824 b43_phy_write(dev, B43_PHY_CCK(0x0A), backup_phy[9]);
1825 b43_phy_write(dev, B43_PHY_CCK(0x03), backup_phy[10]);
1826 b43_phy_write(dev, B43_PHY_LO_MASK, backup_phy[11]);
1827 b43_phy_write(dev, B43_PHY_LO_CTL, backup_phy[12]);
1828 b43_phy_write(dev, B43_PHY_CCK(0x2B), backup_phy[13]);
1829 b43_phy_write(dev, B43_PHY_PGACTL, backup_phy[14]);
1830
1831 b43_gphy_set_baseband_attenuation(dev, backup_bband);
1832
1833 b43_radio_write16(dev, 0x52, backup_radio[0]);
1834 b43_radio_write16(dev, 0x43, backup_radio[1]);
1835 b43_radio_write16(dev, 0x7A, backup_radio[2]);
1836
1837 b43_phy_write(dev, B43_PHY_RFOVER, backup_phy[2] | 0x0003);
1838 udelay(10);
1839 b43_phy_write(dev, B43_PHY_RFOVER, backup_phy[2]);
1840 b43_phy_write(dev, B43_PHY_RFOVERVAL, backup_phy[3]);
1841 b43_phy_write(dev, B43_PHY_CRS0, backup_phy[0]);
1842 b43_phy_write(dev, B43_PHY_CCKBBANDCFG, backup_phy[1]);
1843
1844 gphy->max_lb_gain =
1845 ((loop1_inner_done * 6) - (loop1_outer_done * 4)) - 11;
1846 gphy->trsw_rx_gain = trsw_rx * 2;
1847 }
1848
b43_hardware_pctl_early_init(struct b43_wldev * dev)1849 static void b43_hardware_pctl_early_init(struct b43_wldev *dev)
1850 {
1851 struct b43_phy *phy = &dev->phy;
1852
1853 if (!b43_has_hardware_pctl(dev)) {
1854 b43_phy_write(dev, 0x047A, 0xC111);
1855 return;
1856 }
1857
1858 b43_phy_mask(dev, 0x0036, 0xFEFF);
1859 b43_phy_write(dev, 0x002F, 0x0202);
1860 b43_phy_set(dev, 0x047C, 0x0002);
1861 b43_phy_set(dev, 0x047A, 0xF000);
1862 if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
1863 b43_phy_maskset(dev, 0x047A, 0xFF0F, 0x0010);
1864 b43_phy_set(dev, 0x005D, 0x8000);
1865 b43_phy_maskset(dev, 0x004E, 0xFFC0, 0x0010);
1866 b43_phy_write(dev, 0x002E, 0xC07F);
1867 b43_phy_set(dev, 0x0036, 0x0400);
1868 } else {
1869 b43_phy_set(dev, 0x0036, 0x0200);
1870 b43_phy_set(dev, 0x0036, 0x0400);
1871 b43_phy_mask(dev, 0x005D, 0x7FFF);
1872 b43_phy_mask(dev, 0x004F, 0xFFFE);
1873 b43_phy_maskset(dev, 0x004E, 0xFFC0, 0x0010);
1874 b43_phy_write(dev, 0x002E, 0xC07F);
1875 b43_phy_maskset(dev, 0x047A, 0xFF0F, 0x0010);
1876 }
1877 }
1878
1879 /* Hardware power control for G-PHY */
b43_hardware_pctl_init_gphy(struct b43_wldev * dev)1880 static void b43_hardware_pctl_init_gphy(struct b43_wldev *dev)
1881 {
1882 struct b43_phy *phy = &dev->phy;
1883 struct b43_phy_g *gphy = phy->g;
1884
1885 if (!b43_has_hardware_pctl(dev)) {
1886 /* No hardware power control */
1887 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_HWPCTL);
1888 return;
1889 }
1890
1891 b43_phy_maskset(dev, 0x0036, 0xFFC0, (gphy->tgt_idle_tssi - gphy->cur_idle_tssi));
1892 b43_phy_maskset(dev, 0x0478, 0xFF00, (gphy->tgt_idle_tssi - gphy->cur_idle_tssi));
1893 b43_gphy_tssi_power_lt_init(dev);
1894 b43_gphy_gain_lt_init(dev);
1895 b43_phy_mask(dev, 0x0060, 0xFFBF);
1896 b43_phy_write(dev, 0x0014, 0x0000);
1897
1898 B43_WARN_ON(phy->rev < 6);
1899 b43_phy_set(dev, 0x0478, 0x0800);
1900 b43_phy_mask(dev, 0x0478, 0xFEFF);
1901 b43_phy_mask(dev, 0x0801, 0xFFBF);
1902
1903 b43_gphy_dc_lt_init(dev, 1);
1904
1905 /* Enable hardware pctl in firmware. */
1906 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_HWPCTL);
1907 }
1908
1909 /* Initialize B/G PHY power control */
b43_phy_init_pctl(struct b43_wldev * dev)1910 static void b43_phy_init_pctl(struct b43_wldev *dev)
1911 {
1912 struct b43_phy *phy = &dev->phy;
1913 struct b43_phy_g *gphy = phy->g;
1914 struct b43_rfatt old_rfatt;
1915 struct b43_bbatt old_bbatt;
1916 u8 old_tx_control = 0;
1917
1918 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
1919
1920 if ((dev->dev->board_vendor == SSB_BOARDVENDOR_BCM) &&
1921 (dev->dev->board_type == SSB_BOARD_BU4306))
1922 return;
1923
1924 b43_phy_write(dev, 0x0028, 0x8018);
1925
1926 /* This does something with the Analog... */
1927 b43_write16(dev, B43_MMIO_PHY0, b43_read16(dev, B43_MMIO_PHY0)
1928 & 0xFFDF);
1929
1930 if (!phy->gmode)
1931 return;
1932 b43_hardware_pctl_early_init(dev);
1933 if (gphy->cur_idle_tssi == 0) {
1934 if (phy->radio_ver == 0x2050 && phy->analog == 0) {
1935 b43_radio_maskset(dev, 0x0076, 0x00F7, 0x0084);
1936 } else {
1937 struct b43_rfatt rfatt;
1938 struct b43_bbatt bbatt;
1939
1940 memcpy(&old_rfatt, &gphy->rfatt, sizeof(old_rfatt));
1941 memcpy(&old_bbatt, &gphy->bbatt, sizeof(old_bbatt));
1942 old_tx_control = gphy->tx_control;
1943
1944 bbatt.att = 11;
1945 if (phy->radio_rev == 8) {
1946 rfatt.att = 15;
1947 rfatt.with_padmix = true;
1948 } else {
1949 rfatt.att = 9;
1950 rfatt.with_padmix = false;
1951 }
1952 b43_set_txpower_g(dev, &bbatt, &rfatt, 0);
1953 }
1954 b43_dummy_transmission(dev, false, true);
1955 gphy->cur_idle_tssi = b43_phy_read(dev, B43_PHY_ITSSI);
1956 if (B43_DEBUG) {
1957 /* Current-Idle-TSSI sanity check. */
1958 if (abs(gphy->cur_idle_tssi - gphy->tgt_idle_tssi) >= 20) {
1959 b43dbg(dev->wl,
1960 "!WARNING! Idle-TSSI phy->cur_idle_tssi "
1961 "measuring failed. (cur=%d, tgt=%d). Disabling TX power "
1962 "adjustment.\n", gphy->cur_idle_tssi,
1963 gphy->tgt_idle_tssi);
1964 gphy->cur_idle_tssi = 0;
1965 }
1966 }
1967 if (phy->radio_ver == 0x2050 && phy->analog == 0) {
1968 b43_radio_mask(dev, 0x0076, 0xFF7B);
1969 } else {
1970 b43_set_txpower_g(dev, &old_bbatt,
1971 &old_rfatt, old_tx_control);
1972 }
1973 }
1974 b43_hardware_pctl_init_gphy(dev);
1975 b43_shm_clear_tssi(dev);
1976 }
1977
b43_phy_inita(struct b43_wldev * dev)1978 static void b43_phy_inita(struct b43_wldev *dev)
1979 {
1980 struct b43_phy *phy = &dev->phy;
1981
1982 might_sleep();
1983
1984 if (phy->rev >= 6) {
1985 if (b43_phy_read(dev, B43_PHY_ENCORE) & B43_PHY_ENCORE_EN)
1986 b43_phy_set(dev, B43_PHY_ENCORE, 0x0010);
1987 else
1988 b43_phy_mask(dev, B43_PHY_ENCORE, ~0x1010);
1989 }
1990
1991 b43_wa_all(dev);
1992
1993 if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL)
1994 b43_phy_maskset(dev, B43_PHY_OFDM(0x6E), 0xE000, 0x3CF);
1995 }
1996
b43_phy_initg(struct b43_wldev * dev)1997 static void b43_phy_initg(struct b43_wldev *dev)
1998 {
1999 struct b43_phy *phy = &dev->phy;
2000 struct b43_phy_g *gphy = phy->g;
2001 u16 tmp;
2002
2003 if (phy->rev == 1)
2004 b43_phy_initb5(dev);
2005 else
2006 b43_phy_initb6(dev);
2007
2008 if (phy->rev >= 2 || phy->gmode)
2009 b43_phy_inita(dev);
2010
2011 if (phy->rev >= 2) {
2012 b43_phy_write(dev, B43_PHY_ANALOGOVER, 0);
2013 b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, 0);
2014 }
2015 if (phy->rev == 2) {
2016 b43_phy_write(dev, B43_PHY_RFOVER, 0);
2017 b43_phy_write(dev, B43_PHY_PGACTL, 0xC0);
2018 }
2019 if (phy->rev > 5) {
2020 b43_phy_write(dev, B43_PHY_RFOVER, 0x400);
2021 b43_phy_write(dev, B43_PHY_PGACTL, 0xC0);
2022 }
2023 if (phy->gmode || phy->rev >= 2) {
2024 tmp = b43_phy_read(dev, B43_PHY_VERSION_OFDM);
2025 tmp &= B43_PHYVER_VERSION;
2026 if (tmp == 3 || tmp == 5) {
2027 b43_phy_write(dev, B43_PHY_OFDM(0xC2), 0x1816);
2028 b43_phy_write(dev, B43_PHY_OFDM(0xC3), 0x8006);
2029 }
2030 if (tmp == 5) {
2031 b43_phy_maskset(dev, B43_PHY_OFDM(0xCC), 0x00FF, 0x1F00);
2032 }
2033 }
2034 if ((phy->rev <= 2 && phy->gmode) || phy->rev >= 2)
2035 b43_phy_write(dev, B43_PHY_OFDM(0x7E), 0x78);
2036 if (phy->radio_rev == 8) {
2037 b43_phy_set(dev, B43_PHY_EXTG(0x01), 0x80);
2038 b43_phy_set(dev, B43_PHY_OFDM(0x3E), 0x4);
2039 }
2040 if (has_loopback_gain(phy))
2041 b43_calc_loopback_gain(dev);
2042
2043 if (phy->radio_rev != 8) {
2044 if (gphy->initval == 0xFFFF)
2045 gphy->initval = b43_radio_init2050(dev);
2046 else
2047 b43_radio_write16(dev, 0x0078, gphy->initval);
2048 }
2049 b43_lo_g_init(dev);
2050 if (has_tx_magnification(phy)) {
2051 b43_radio_write16(dev, 0x52,
2052 (b43_radio_read16(dev, 0x52) & 0xFF00)
2053 | gphy->lo_control->tx_bias | gphy->
2054 lo_control->tx_magn);
2055 } else {
2056 b43_radio_maskset(dev, 0x52, 0xFFF0, gphy->lo_control->tx_bias);
2057 }
2058 if (phy->rev >= 6) {
2059 b43_phy_maskset(dev, B43_PHY_CCK(0x36), 0x0FFF, (gphy->lo_control->tx_bias << 12));
2060 }
2061 if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL)
2062 b43_phy_write(dev, B43_PHY_CCK(0x2E), 0x8075);
2063 else
2064 b43_phy_write(dev, B43_PHY_CCK(0x2E), 0x807F);
2065 if (phy->rev < 2)
2066 b43_phy_write(dev, B43_PHY_CCK(0x2F), 0x101);
2067 else
2068 b43_phy_write(dev, B43_PHY_CCK(0x2F), 0x202);
2069 if (phy->gmode || phy->rev >= 2) {
2070 b43_lo_g_adjust(dev);
2071 b43_phy_write(dev, B43_PHY_LO_MASK, 0x8078);
2072 }
2073
2074 if (!(dev->dev->bus_sprom->boardflags_lo & B43_BFL_RSSI)) {
2075 /* The specs state to update the NRSSI LT with
2076 * the value 0x7FFFFFFF here. I think that is some weird
2077 * compiler optimization in the original driver.
2078 * Essentially, what we do here is resetting all NRSSI LT
2079 * entries to -32 (see the clamp_val() in nrssi_hw_update())
2080 */
2081 b43_nrssi_hw_update(dev, 0xFFFF); //FIXME?
2082 b43_calc_nrssi_threshold(dev);
2083 } else if (phy->gmode || phy->rev >= 2) {
2084 if (gphy->nrssi[0] == -1000) {
2085 B43_WARN_ON(gphy->nrssi[1] != -1000);
2086 b43_calc_nrssi_slope(dev);
2087 } else
2088 b43_calc_nrssi_threshold(dev);
2089 }
2090 if (phy->radio_rev == 8)
2091 b43_phy_write(dev, B43_PHY_EXTG(0x05), 0x3230);
2092 b43_phy_init_pctl(dev);
2093 /* FIXME: The spec says in the following if, the 0 should be replaced
2094 'if OFDM may not be used in the current locale'
2095 but OFDM is legal everywhere */
2096 if ((dev->dev->chip_id == 0x4306
2097 && dev->dev->chip_pkg == 2) || 0) {
2098 b43_phy_mask(dev, B43_PHY_CRS0, 0xBFFF);
2099 b43_phy_mask(dev, B43_PHY_OFDM(0xC3), 0x7FFF);
2100 }
2101 }
2102
b43_gphy_channel_switch(struct b43_wldev * dev,unsigned int channel,bool synthetic_pu_workaround)2103 void b43_gphy_channel_switch(struct b43_wldev *dev,
2104 unsigned int channel,
2105 bool synthetic_pu_workaround)
2106 {
2107 if (synthetic_pu_workaround)
2108 b43_synth_pu_workaround(dev, channel);
2109
2110 b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel));
2111
2112 if (channel == 14) {
2113 if (dev->dev->bus_sprom->country_code ==
2114 SSB_SPROM1CCODE_JAPAN)
2115 b43_hf_write(dev,
2116 b43_hf_read(dev) & ~B43_HF_ACPR);
2117 else
2118 b43_hf_write(dev,
2119 b43_hf_read(dev) | B43_HF_ACPR);
2120 b43_write16(dev, B43_MMIO_CHANNEL_EXT,
2121 b43_read16(dev, B43_MMIO_CHANNEL_EXT)
2122 | (1 << 11));
2123 } else {
2124 b43_write16(dev, B43_MMIO_CHANNEL_EXT,
2125 b43_read16(dev, B43_MMIO_CHANNEL_EXT)
2126 & 0xF7BF);
2127 }
2128 }
2129
default_baseband_attenuation(struct b43_wldev * dev,struct b43_bbatt * bb)2130 static void default_baseband_attenuation(struct b43_wldev *dev,
2131 struct b43_bbatt *bb)
2132 {
2133 struct b43_phy *phy = &dev->phy;
2134
2135 if (phy->radio_ver == 0x2050 && phy->radio_rev < 6)
2136 bb->att = 0;
2137 else
2138 bb->att = 2;
2139 }
2140
default_radio_attenuation(struct b43_wldev * dev,struct b43_rfatt * rf)2141 static void default_radio_attenuation(struct b43_wldev *dev,
2142 struct b43_rfatt *rf)
2143 {
2144 struct b43_bus_dev *bdev = dev->dev;
2145 struct b43_phy *phy = &dev->phy;
2146
2147 rf->with_padmix = false;
2148
2149 if (dev->dev->board_vendor == SSB_BOARDVENDOR_BCM &&
2150 dev->dev->board_type == SSB_BOARD_BCM4309G) {
2151 if (dev->dev->board_rev < 0x43) {
2152 rf->att = 2;
2153 return;
2154 } else if (dev->dev->board_rev < 0x51) {
2155 rf->att = 3;
2156 return;
2157 }
2158 }
2159
2160 switch (phy->radio_ver) {
2161 case 0x2053:
2162 switch (phy->radio_rev) {
2163 case 1:
2164 rf->att = 6;
2165 return;
2166 }
2167 break;
2168 case 0x2050:
2169 switch (phy->radio_rev) {
2170 case 0:
2171 rf->att = 5;
2172 return;
2173 case 1:
2174 if (phy->type == B43_PHYTYPE_G) {
2175 if (bdev->board_vendor == SSB_BOARDVENDOR_BCM
2176 && bdev->board_type == SSB_BOARD_BCM4309G
2177 && bdev->board_rev >= 30)
2178 rf->att = 3;
2179 else if (bdev->board_vendor ==
2180 SSB_BOARDVENDOR_BCM
2181 && bdev->board_type ==
2182 SSB_BOARD_BU4306)
2183 rf->att = 3;
2184 else
2185 rf->att = 1;
2186 } else {
2187 if (bdev->board_vendor == SSB_BOARDVENDOR_BCM
2188 && bdev->board_type == SSB_BOARD_BCM4309G
2189 && bdev->board_rev >= 30)
2190 rf->att = 7;
2191 else
2192 rf->att = 6;
2193 }
2194 return;
2195 case 2:
2196 if (phy->type == B43_PHYTYPE_G) {
2197 if (bdev->board_vendor == SSB_BOARDVENDOR_BCM
2198 && bdev->board_type == SSB_BOARD_BCM4309G
2199 && bdev->board_rev >= 30)
2200 rf->att = 3;
2201 else if (bdev->board_vendor ==
2202 SSB_BOARDVENDOR_BCM
2203 && bdev->board_type ==
2204 SSB_BOARD_BU4306)
2205 rf->att = 5;
2206 else if (bdev->chip_id == 0x4320)
2207 rf->att = 4;
2208 else
2209 rf->att = 3;
2210 } else
2211 rf->att = 6;
2212 return;
2213 case 3:
2214 rf->att = 5;
2215 return;
2216 case 4:
2217 case 5:
2218 rf->att = 1;
2219 return;
2220 case 6:
2221 case 7:
2222 rf->att = 5;
2223 return;
2224 case 8:
2225 rf->att = 0xA;
2226 rf->with_padmix = true;
2227 return;
2228 case 9:
2229 default:
2230 rf->att = 5;
2231 return;
2232 }
2233 }
2234 rf->att = 5;
2235 }
2236
default_tx_control(struct b43_wldev * dev)2237 static u16 default_tx_control(struct b43_wldev *dev)
2238 {
2239 struct b43_phy *phy = &dev->phy;
2240
2241 if (phy->radio_ver != 0x2050)
2242 return 0;
2243 if (phy->radio_rev == 1)
2244 return B43_TXCTL_PA2DB | B43_TXCTL_TXMIX;
2245 if (phy->radio_rev < 6)
2246 return B43_TXCTL_PA2DB;
2247 if (phy->radio_rev == 8)
2248 return B43_TXCTL_TXMIX;
2249 return 0;
2250 }
2251
b43_gphy_aci_detect(struct b43_wldev * dev,u8 channel)2252 static u8 b43_gphy_aci_detect(struct b43_wldev *dev, u8 channel)
2253 {
2254 struct b43_phy *phy = &dev->phy;
2255 struct b43_phy_g *gphy = phy->g;
2256 u8 ret = 0;
2257 u16 saved, rssi, temp;
2258 int i, j = 0;
2259
2260 saved = b43_phy_read(dev, 0x0403);
2261 b43_switch_channel(dev, channel);
2262 b43_phy_write(dev, 0x0403, (saved & 0xFFF8) | 5);
2263 if (gphy->aci_hw_rssi)
2264 rssi = b43_phy_read(dev, 0x048A) & 0x3F;
2265 else
2266 rssi = saved & 0x3F;
2267 /* clamp temp to signed 5bit */
2268 if (rssi > 32)
2269 rssi -= 64;
2270 for (i = 0; i < 100; i++) {
2271 temp = (b43_phy_read(dev, 0x047F) >> 8) & 0x3F;
2272 if (temp > 32)
2273 temp -= 64;
2274 if (temp < rssi)
2275 j++;
2276 if (j >= 20)
2277 ret = 1;
2278 }
2279 b43_phy_write(dev, 0x0403, saved);
2280
2281 return ret;
2282 }
2283
b43_gphy_aci_scan(struct b43_wldev * dev)2284 static u8 b43_gphy_aci_scan(struct b43_wldev *dev)
2285 {
2286 struct b43_phy *phy = &dev->phy;
2287 u8 ret[13] = { 0 };
2288 unsigned int channel = phy->channel;
2289 unsigned int i, j, start, end;
2290
2291 if (!((phy->type == B43_PHYTYPE_G) && (phy->rev > 0)))
2292 return 0;
2293
2294 b43_phy_lock(dev);
2295 b43_radio_lock(dev);
2296 b43_phy_mask(dev, 0x0802, 0xFFFC);
2297 b43_phy_mask(dev, B43_PHY_G_CRS, 0x7FFF);
2298 b43_set_all_gains(dev, 3, 8, 1);
2299
2300 start = (channel - 5 > 0) ? channel - 5 : 1;
2301 end = (channel + 5 < 14) ? channel + 5 : 13;
2302
2303 for (i = start; i <= end; i++) {
2304 if (abs(channel - i) > 2)
2305 ret[i - 1] = b43_gphy_aci_detect(dev, i);
2306 }
2307 b43_switch_channel(dev, channel);
2308 b43_phy_maskset(dev, 0x0802, 0xFFFC, 0x0003);
2309 b43_phy_mask(dev, 0x0403, 0xFFF8);
2310 b43_phy_set(dev, B43_PHY_G_CRS, 0x8000);
2311 b43_set_original_gains(dev);
2312 for (i = 0; i < 13; i++) {
2313 if (!ret[i])
2314 continue;
2315 end = (i + 5 < 13) ? i + 5 : 13;
2316 for (j = i; j < end; j++)
2317 ret[j] = 1;
2318 }
2319 b43_radio_unlock(dev);
2320 b43_phy_unlock(dev);
2321
2322 return ret[channel - 1];
2323 }
2324
b43_tssi2dbm_ad(s32 num,s32 den)2325 static s32 b43_tssi2dbm_ad(s32 num, s32 den)
2326 {
2327 if (num < 0)
2328 return num / den;
2329 else
2330 return (num + den / 2) / den;
2331 }
2332
b43_tssi2dbm_entry(s8 entry[],u8 index,s16 pab0,s16 pab1,s16 pab2)2333 static s8 b43_tssi2dbm_entry(s8 entry[], u8 index,
2334 s16 pab0, s16 pab1, s16 pab2)
2335 {
2336 s32 m1, m2, f = 256, q, delta;
2337 s8 i = 0;
2338
2339 m1 = b43_tssi2dbm_ad(16 * pab0 + index * pab1, 32);
2340 m2 = max(b43_tssi2dbm_ad(32768 + index * pab2, 256), 1);
2341 do {
2342 if (i > 15)
2343 return -EINVAL;
2344 q = b43_tssi2dbm_ad(f * 4096 -
2345 b43_tssi2dbm_ad(m2 * f, 16) * f, 2048);
2346 delta = abs(q - f);
2347 f = q;
2348 i++;
2349 } while (delta >= 2);
2350 entry[index] = clamp_val(b43_tssi2dbm_ad(m1 * f, 8192), -127, 128);
2351 return 0;
2352 }
2353
b43_generate_dyn_tssi2dbm_tab(struct b43_wldev * dev,s16 pab0,s16 pab1,s16 pab2)2354 u8 *b43_generate_dyn_tssi2dbm_tab(struct b43_wldev *dev,
2355 s16 pab0, s16 pab1, s16 pab2)
2356 {
2357 unsigned int i;
2358 u8 *tab;
2359 int err;
2360
2361 tab = kmalloc(64, GFP_KERNEL);
2362 if (!tab) {
2363 b43err(dev->wl, "Could not allocate memory "
2364 "for tssi2dbm table\n");
2365 return NULL;
2366 }
2367 for (i = 0; i < 64; i++) {
2368 err = b43_tssi2dbm_entry(tab, i, pab0, pab1, pab2);
2369 if (err) {
2370 b43err(dev->wl, "Could not generate "
2371 "tssi2dBm table\n");
2372 kfree(tab);
2373 return NULL;
2374 }
2375 }
2376
2377 return tab;
2378 }
2379
2380 /* Initialise the TSSI->dBm lookup table */
b43_gphy_init_tssi2dbm_table(struct b43_wldev * dev)2381 static int b43_gphy_init_tssi2dbm_table(struct b43_wldev *dev)
2382 {
2383 struct b43_phy *phy = &dev->phy;
2384 struct b43_phy_g *gphy = phy->g;
2385 s16 pab0, pab1, pab2;
2386
2387 pab0 = (s16) (dev->dev->bus_sprom->pa0b0);
2388 pab1 = (s16) (dev->dev->bus_sprom->pa0b1);
2389 pab2 = (s16) (dev->dev->bus_sprom->pa0b2);
2390
2391 B43_WARN_ON((dev->dev->chip_id == 0x4301) &&
2392 (phy->radio_ver != 0x2050)); /* Not supported anymore */
2393
2394 gphy->dyn_tssi_tbl = false;
2395
2396 if (pab0 != 0 && pab1 != 0 && pab2 != 0 &&
2397 pab0 != -1 && pab1 != -1 && pab2 != -1) {
2398 /* The pabX values are set in SPROM. Use them. */
2399 if ((s8) dev->dev->bus_sprom->itssi_bg != 0 &&
2400 (s8) dev->dev->bus_sprom->itssi_bg != -1) {
2401 gphy->tgt_idle_tssi =
2402 (s8) (dev->dev->bus_sprom->itssi_bg);
2403 } else
2404 gphy->tgt_idle_tssi = 62;
2405 gphy->tssi2dbm = b43_generate_dyn_tssi2dbm_tab(dev, pab0,
2406 pab1, pab2);
2407 if (!gphy->tssi2dbm)
2408 return -ENOMEM;
2409 gphy->dyn_tssi_tbl = true;
2410 } else {
2411 /* pabX values not set in SPROM. */
2412 gphy->tgt_idle_tssi = 52;
2413 gphy->tssi2dbm = b43_tssi2dbm_g_table;
2414 }
2415
2416 return 0;
2417 }
2418
b43_gphy_op_allocate(struct b43_wldev * dev)2419 static int b43_gphy_op_allocate(struct b43_wldev *dev)
2420 {
2421 struct b43_phy_g *gphy;
2422 struct b43_txpower_lo_control *lo;
2423 int err;
2424
2425 gphy = kzalloc(sizeof(*gphy), GFP_KERNEL);
2426 if (!gphy) {
2427 err = -ENOMEM;
2428 goto error;
2429 }
2430 dev->phy.g = gphy;
2431
2432 lo = kzalloc(sizeof(*lo), GFP_KERNEL);
2433 if (!lo) {
2434 err = -ENOMEM;
2435 goto err_free_gphy;
2436 }
2437 gphy->lo_control = lo;
2438
2439 err = b43_gphy_init_tssi2dbm_table(dev);
2440 if (err)
2441 goto err_free_lo;
2442
2443 return 0;
2444
2445 err_free_lo:
2446 kfree(lo);
2447 err_free_gphy:
2448 kfree(gphy);
2449 error:
2450 return err;
2451 }
2452
b43_gphy_op_prepare_structs(struct b43_wldev * dev)2453 static void b43_gphy_op_prepare_structs(struct b43_wldev *dev)
2454 {
2455 struct b43_phy *phy = &dev->phy;
2456 struct b43_phy_g *gphy = phy->g;
2457 const void *tssi2dbm;
2458 int tgt_idle_tssi;
2459 struct b43_txpower_lo_control *lo;
2460 unsigned int i;
2461
2462 /* tssi2dbm table is constant, so it is initialized at alloc time.
2463 * Save a copy of the pointer. */
2464 tssi2dbm = gphy->tssi2dbm;
2465 tgt_idle_tssi = gphy->tgt_idle_tssi;
2466 /* Save the LO pointer. */
2467 lo = gphy->lo_control;
2468
2469 /* Zero out the whole PHY structure. */
2470 memset(gphy, 0, sizeof(*gphy));
2471
2472 /* Restore pointers. */
2473 gphy->tssi2dbm = tssi2dbm;
2474 gphy->tgt_idle_tssi = tgt_idle_tssi;
2475 gphy->lo_control = lo;
2476
2477 memset(gphy->minlowsig, 0xFF, sizeof(gphy->minlowsig));
2478
2479 /* NRSSI */
2480 for (i = 0; i < ARRAY_SIZE(gphy->nrssi); i++)
2481 gphy->nrssi[i] = -1000;
2482 for (i = 0; i < ARRAY_SIZE(gphy->nrssi_lt); i++)
2483 gphy->nrssi_lt[i] = i;
2484
2485 gphy->lofcal = 0xFFFF;
2486 gphy->initval = 0xFFFF;
2487
2488 gphy->interfmode = B43_INTERFMODE_NONE;
2489
2490 /* OFDM-table address caching. */
2491 gphy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_UNKNOWN;
2492
2493 gphy->average_tssi = 0xFF;
2494
2495 /* Local Osciallator structure */
2496 lo->tx_bias = 0xFF;
2497 INIT_LIST_HEAD(&lo->calib_list);
2498 }
2499
b43_gphy_op_free(struct b43_wldev * dev)2500 static void b43_gphy_op_free(struct b43_wldev *dev)
2501 {
2502 struct b43_phy *phy = &dev->phy;
2503 struct b43_phy_g *gphy = phy->g;
2504
2505 kfree(gphy->lo_control);
2506
2507 if (gphy->dyn_tssi_tbl)
2508 kfree(gphy->tssi2dbm);
2509 gphy->dyn_tssi_tbl = false;
2510 gphy->tssi2dbm = NULL;
2511
2512 kfree(gphy);
2513 dev->phy.g = NULL;
2514 }
2515
b43_gphy_op_prepare_hardware(struct b43_wldev * dev)2516 static int b43_gphy_op_prepare_hardware(struct b43_wldev *dev)
2517 {
2518 struct b43_phy *phy = &dev->phy;
2519 struct b43_phy_g *gphy = phy->g;
2520 struct b43_txpower_lo_control *lo = gphy->lo_control;
2521
2522 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
2523
2524 default_baseband_attenuation(dev, &gphy->bbatt);
2525 default_radio_attenuation(dev, &gphy->rfatt);
2526 gphy->tx_control = (default_tx_control(dev) << 4);
2527 generate_rfatt_list(dev, &lo->rfatt_list);
2528 generate_bbatt_list(dev, &lo->bbatt_list);
2529
2530 /* Commit previous writes */
2531 b43_read32(dev, B43_MMIO_MACCTL);
2532
2533 if (phy->rev == 1) {
2534 /* Workaround: Temporarly disable gmode through the early init
2535 * phase, as the gmode stuff is not needed for phy rev 1 */
2536 phy->gmode = false;
2537 b43_wireless_core_reset(dev, 0);
2538 b43_phy_initg(dev);
2539 phy->gmode = true;
2540 b43_wireless_core_reset(dev, 1);
2541 }
2542
2543 return 0;
2544 }
2545
b43_gphy_op_init(struct b43_wldev * dev)2546 static int b43_gphy_op_init(struct b43_wldev *dev)
2547 {
2548 b43_phy_initg(dev);
2549
2550 return 0;
2551 }
2552
b43_gphy_op_exit(struct b43_wldev * dev)2553 static void b43_gphy_op_exit(struct b43_wldev *dev)
2554 {
2555 b43_lo_g_cleanup(dev);
2556 }
2557
b43_gphy_op_read(struct b43_wldev * dev,u16 reg)2558 static u16 b43_gphy_op_read(struct b43_wldev *dev, u16 reg)
2559 {
2560 b43_write16f(dev, B43_MMIO_PHY_CONTROL, reg);
2561 return b43_read16(dev, B43_MMIO_PHY_DATA);
2562 }
2563
b43_gphy_op_write(struct b43_wldev * dev,u16 reg,u16 value)2564 static void b43_gphy_op_write(struct b43_wldev *dev, u16 reg, u16 value)
2565 {
2566 b43_write16f(dev, B43_MMIO_PHY_CONTROL, reg);
2567 b43_write16(dev, B43_MMIO_PHY_DATA, value);
2568 }
2569
b43_gphy_op_radio_read(struct b43_wldev * dev,u16 reg)2570 static u16 b43_gphy_op_radio_read(struct b43_wldev *dev, u16 reg)
2571 {
2572 /* Register 1 is a 32-bit register. */
2573 B43_WARN_ON(reg == 1);
2574 /* G-PHY needs 0x80 for read access. */
2575 reg |= 0x80;
2576
2577 b43_write16f(dev, B43_MMIO_RADIO_CONTROL, reg);
2578 return b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
2579 }
2580
b43_gphy_op_radio_write(struct b43_wldev * dev,u16 reg,u16 value)2581 static void b43_gphy_op_radio_write(struct b43_wldev *dev, u16 reg, u16 value)
2582 {
2583 /* Register 1 is a 32-bit register. */
2584 B43_WARN_ON(reg == 1);
2585
2586 b43_write16f(dev, B43_MMIO_RADIO_CONTROL, reg);
2587 b43_write16(dev, B43_MMIO_RADIO_DATA_LOW, value);
2588 }
2589
b43_gphy_op_supports_hwpctl(struct b43_wldev * dev)2590 static bool b43_gphy_op_supports_hwpctl(struct b43_wldev *dev)
2591 {
2592 return (dev->phy.rev >= 6);
2593 }
2594
b43_gphy_op_software_rfkill(struct b43_wldev * dev,bool blocked)2595 static void b43_gphy_op_software_rfkill(struct b43_wldev *dev,
2596 bool blocked)
2597 {
2598 struct b43_phy *phy = &dev->phy;
2599 struct b43_phy_g *gphy = phy->g;
2600 unsigned int channel;
2601
2602 might_sleep();
2603
2604 if (!blocked) {
2605 /* Turn radio ON */
2606 if (phy->radio_on)
2607 return;
2608
2609 b43_phy_write(dev, 0x0015, 0x8000);
2610 b43_phy_write(dev, 0x0015, 0xCC00);
2611 b43_phy_write(dev, 0x0015, (phy->gmode ? 0x00C0 : 0x0000));
2612 if (gphy->radio_off_context.valid) {
2613 /* Restore the RFover values. */
2614 b43_phy_write(dev, B43_PHY_RFOVER,
2615 gphy->radio_off_context.rfover);
2616 b43_phy_write(dev, B43_PHY_RFOVERVAL,
2617 gphy->radio_off_context.rfoverval);
2618 gphy->radio_off_context.valid = false;
2619 }
2620 channel = phy->channel;
2621 b43_gphy_channel_switch(dev, 6, 1);
2622 b43_gphy_channel_switch(dev, channel, 0);
2623 } else {
2624 /* Turn radio OFF */
2625 u16 rfover, rfoverval;
2626
2627 rfover = b43_phy_read(dev, B43_PHY_RFOVER);
2628 rfoverval = b43_phy_read(dev, B43_PHY_RFOVERVAL);
2629 gphy->radio_off_context.rfover = rfover;
2630 gphy->radio_off_context.rfoverval = rfoverval;
2631 gphy->radio_off_context.valid = true;
2632 b43_phy_write(dev, B43_PHY_RFOVER, rfover | 0x008C);
2633 b43_phy_write(dev, B43_PHY_RFOVERVAL, rfoverval & 0xFF73);
2634 }
2635 }
2636
b43_gphy_op_switch_channel(struct b43_wldev * dev,unsigned int new_channel)2637 static int b43_gphy_op_switch_channel(struct b43_wldev *dev,
2638 unsigned int new_channel)
2639 {
2640 if ((new_channel < 1) || (new_channel > 14))
2641 return -EINVAL;
2642 b43_gphy_channel_switch(dev, new_channel, 0);
2643
2644 return 0;
2645 }
2646
b43_gphy_op_get_default_chan(struct b43_wldev * dev)2647 static unsigned int b43_gphy_op_get_default_chan(struct b43_wldev *dev)
2648 {
2649 return 1; /* Default to channel 1 */
2650 }
2651
b43_gphy_op_set_rx_antenna(struct b43_wldev * dev,int antenna)2652 static void b43_gphy_op_set_rx_antenna(struct b43_wldev *dev, int antenna)
2653 {
2654 struct b43_phy *phy = &dev->phy;
2655 u16 tmp;
2656 int autodiv = 0;
2657
2658 if (antenna == B43_ANTENNA_AUTO0 || antenna == B43_ANTENNA_AUTO1)
2659 autodiv = 1;
2660
2661 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_ANTDIVHELP);
2662
2663 b43_phy_maskset(dev, B43_PHY_BBANDCFG, ~B43_PHY_BBANDCFG_RXANT,
2664 (autodiv ? B43_ANTENNA_AUTO1 : antenna) <<
2665 B43_PHY_BBANDCFG_RXANT_SHIFT);
2666
2667 if (autodiv) {
2668 tmp = b43_phy_read(dev, B43_PHY_ANTDWELL);
2669 if (antenna == B43_ANTENNA_AUTO1)
2670 tmp &= ~B43_PHY_ANTDWELL_AUTODIV1;
2671 else
2672 tmp |= B43_PHY_ANTDWELL_AUTODIV1;
2673 b43_phy_write(dev, B43_PHY_ANTDWELL, tmp);
2674 }
2675
2676 tmp = b43_phy_read(dev, B43_PHY_ANTWRSETT);
2677 if (autodiv)
2678 tmp |= B43_PHY_ANTWRSETT_ARXDIV;
2679 else
2680 tmp &= ~B43_PHY_ANTWRSETT_ARXDIV;
2681 b43_phy_write(dev, B43_PHY_ANTWRSETT, tmp);
2682
2683 if (autodiv)
2684 b43_phy_set(dev, B43_PHY_ANTWRSETT, B43_PHY_ANTWRSETT_ARXDIV);
2685 else {
2686 b43_phy_mask(dev, B43_PHY_ANTWRSETT,
2687 B43_PHY_ANTWRSETT_ARXDIV);
2688 }
2689
2690 if (phy->rev >= 2) {
2691 b43_phy_set(dev, B43_PHY_OFDM61, B43_PHY_OFDM61_10);
2692 b43_phy_maskset(dev, B43_PHY_DIVSRCHGAINBACK, 0xFF00, 0x15);
2693
2694 if (phy->rev == 2)
2695 b43_phy_write(dev, B43_PHY_ADIVRELATED, 8);
2696 else
2697 b43_phy_maskset(dev, B43_PHY_ADIVRELATED, 0xFF00, 8);
2698 }
2699 if (phy->rev >= 6)
2700 b43_phy_write(dev, B43_PHY_OFDM9B, 0xDC);
2701
2702 b43_hf_write(dev, b43_hf_read(dev) | B43_HF_ANTDIVHELP);
2703 }
2704
b43_gphy_op_interf_mitigation(struct b43_wldev * dev,enum b43_interference_mitigation mode)2705 static int b43_gphy_op_interf_mitigation(struct b43_wldev *dev,
2706 enum b43_interference_mitigation mode)
2707 {
2708 struct b43_phy *phy = &dev->phy;
2709 struct b43_phy_g *gphy = phy->g;
2710 int currentmode;
2711
2712 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
2713 if ((phy->rev == 0) || (!phy->gmode))
2714 return -ENODEV;
2715
2716 gphy->aci_wlan_automatic = false;
2717 switch (mode) {
2718 case B43_INTERFMODE_AUTOWLAN:
2719 gphy->aci_wlan_automatic = true;
2720 if (gphy->aci_enable)
2721 mode = B43_INTERFMODE_MANUALWLAN;
2722 else
2723 mode = B43_INTERFMODE_NONE;
2724 break;
2725 case B43_INTERFMODE_NONE:
2726 case B43_INTERFMODE_NONWLAN:
2727 case B43_INTERFMODE_MANUALWLAN:
2728 break;
2729 default:
2730 return -EINVAL;
2731 }
2732
2733 currentmode = gphy->interfmode;
2734 if (currentmode == mode)
2735 return 0;
2736 if (currentmode != B43_INTERFMODE_NONE)
2737 b43_radio_interference_mitigation_disable(dev, currentmode);
2738
2739 if (mode == B43_INTERFMODE_NONE) {
2740 gphy->aci_enable = false;
2741 gphy->aci_hw_rssi = false;
2742 } else
2743 b43_radio_interference_mitigation_enable(dev, mode);
2744 gphy->interfmode = mode;
2745
2746 return 0;
2747 }
2748
2749 /* https://bcm-specs.sipsolutions.net/EstimatePowerOut
2750 * This function converts a TSSI value to dBm in Q5.2
2751 */
b43_gphy_estimate_power_out(struct b43_wldev * dev,s8 tssi)2752 static s8 b43_gphy_estimate_power_out(struct b43_wldev *dev, s8 tssi)
2753 {
2754 struct b43_phy_g *gphy = dev->phy.g;
2755 s8 dbm;
2756 s32 tmp;
2757
2758 tmp = (gphy->tgt_idle_tssi - gphy->cur_idle_tssi + tssi);
2759 tmp = clamp_val(tmp, 0x00, 0x3F);
2760 dbm = gphy->tssi2dbm[tmp];
2761
2762 return dbm;
2763 }
2764
b43_put_attenuation_into_ranges(struct b43_wldev * dev,int * _bbatt,int * _rfatt)2765 static void b43_put_attenuation_into_ranges(struct b43_wldev *dev,
2766 int *_bbatt, int *_rfatt)
2767 {
2768 int rfatt = *_rfatt;
2769 int bbatt = *_bbatt;
2770 struct b43_txpower_lo_control *lo = dev->phy.g->lo_control;
2771
2772 /* Get baseband and radio attenuation values into their permitted ranges.
2773 * Radio attenuation affects power level 4 times as much as baseband. */
2774
2775 /* Range constants */
2776 const int rf_min = lo->rfatt_list.min_val;
2777 const int rf_max = lo->rfatt_list.max_val;
2778 const int bb_min = lo->bbatt_list.min_val;
2779 const int bb_max = lo->bbatt_list.max_val;
2780
2781 while (1) {
2782 if (rfatt > rf_max && bbatt > bb_max - 4)
2783 break; /* Can not get it into ranges */
2784 if (rfatt < rf_min && bbatt < bb_min + 4)
2785 break; /* Can not get it into ranges */
2786 if (bbatt > bb_max && rfatt > rf_max - 1)
2787 break; /* Can not get it into ranges */
2788 if (bbatt < bb_min && rfatt < rf_min + 1)
2789 break; /* Can not get it into ranges */
2790
2791 if (bbatt > bb_max) {
2792 bbatt -= 4;
2793 rfatt += 1;
2794 continue;
2795 }
2796 if (bbatt < bb_min) {
2797 bbatt += 4;
2798 rfatt -= 1;
2799 continue;
2800 }
2801 if (rfatt > rf_max) {
2802 rfatt -= 1;
2803 bbatt += 4;
2804 continue;
2805 }
2806 if (rfatt < rf_min) {
2807 rfatt += 1;
2808 bbatt -= 4;
2809 continue;
2810 }
2811 break;
2812 }
2813
2814 *_rfatt = clamp_val(rfatt, rf_min, rf_max);
2815 *_bbatt = clamp_val(bbatt, bb_min, bb_max);
2816 }
2817
b43_gphy_op_adjust_txpower(struct b43_wldev * dev)2818 static void b43_gphy_op_adjust_txpower(struct b43_wldev *dev)
2819 {
2820 struct b43_phy *phy = &dev->phy;
2821 struct b43_phy_g *gphy = phy->g;
2822 int rfatt, bbatt;
2823 u8 tx_control;
2824
2825 b43_mac_suspend(dev);
2826
2827 /* Calculate the new attenuation values. */
2828 bbatt = gphy->bbatt.att;
2829 bbatt += gphy->bbatt_delta;
2830 rfatt = gphy->rfatt.att;
2831 rfatt += gphy->rfatt_delta;
2832
2833 b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt);
2834 tx_control = gphy->tx_control;
2835 if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 2)) {
2836 if (rfatt <= 1) {
2837 if (tx_control == 0) {
2838 tx_control =
2839 B43_TXCTL_PA2DB |
2840 B43_TXCTL_TXMIX;
2841 rfatt += 2;
2842 bbatt += 2;
2843 } else if (dev->dev->bus_sprom->
2844 boardflags_lo &
2845 B43_BFL_PACTRL) {
2846 bbatt += 4 * (rfatt - 2);
2847 rfatt = 2;
2848 }
2849 } else if (rfatt > 4 && tx_control) {
2850 tx_control = 0;
2851 if (bbatt < 3) {
2852 rfatt -= 3;
2853 bbatt += 2;
2854 } else {
2855 rfatt -= 2;
2856 bbatt -= 2;
2857 }
2858 }
2859 }
2860 /* Save the control values */
2861 gphy->tx_control = tx_control;
2862 b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt);
2863 gphy->rfatt.att = rfatt;
2864 gphy->bbatt.att = bbatt;
2865
2866 if (b43_debug(dev, B43_DBG_XMITPOWER))
2867 b43dbg(dev->wl, "Adjusting TX power\n");
2868
2869 /* Adjust the hardware */
2870 b43_phy_lock(dev);
2871 b43_radio_lock(dev);
2872 b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt,
2873 gphy->tx_control);
2874 b43_radio_unlock(dev);
2875 b43_phy_unlock(dev);
2876
2877 b43_mac_enable(dev);
2878 }
2879
b43_gphy_op_recalc_txpower(struct b43_wldev * dev,bool ignore_tssi)2880 static enum b43_txpwr_result b43_gphy_op_recalc_txpower(struct b43_wldev *dev,
2881 bool ignore_tssi)
2882 {
2883 struct b43_phy *phy = &dev->phy;
2884 struct b43_phy_g *gphy = phy->g;
2885 unsigned int average_tssi;
2886 int cck_result, ofdm_result;
2887 int estimated_pwr, desired_pwr, pwr_adjust;
2888 int rfatt_delta, bbatt_delta;
2889 unsigned int max_pwr;
2890
2891 /* First get the average TSSI */
2892 cck_result = b43_phy_shm_tssi_read(dev, B43_SHM_SH_TSSI_CCK);
2893 ofdm_result = b43_phy_shm_tssi_read(dev, B43_SHM_SH_TSSI_OFDM_G);
2894 if ((cck_result < 0) && (ofdm_result < 0)) {
2895 /* No TSSI information available */
2896 if (!ignore_tssi)
2897 goto no_adjustment_needed;
2898 cck_result = 0;
2899 ofdm_result = 0;
2900 }
2901 if (cck_result < 0)
2902 average_tssi = ofdm_result;
2903 else if (ofdm_result < 0)
2904 average_tssi = cck_result;
2905 else
2906 average_tssi = (cck_result + ofdm_result) / 2;
2907 /* Merge the average with the stored value. */
2908 if (likely(gphy->average_tssi != 0xFF))
2909 average_tssi = (average_tssi + gphy->average_tssi) / 2;
2910 gphy->average_tssi = average_tssi;
2911 B43_WARN_ON(average_tssi >= B43_TSSI_MAX);
2912
2913 /* Estimate the TX power emission based on the TSSI */
2914 estimated_pwr = b43_gphy_estimate_power_out(dev, average_tssi);
2915
2916 B43_WARN_ON(phy->type != B43_PHYTYPE_G);
2917 max_pwr = dev->dev->bus_sprom->maxpwr_bg;
2918 if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL)
2919 max_pwr -= 3; /* minus 0.75 */
2920 if (unlikely(max_pwr >= INT_TO_Q52(30/*dBm*/))) {
2921 b43warn(dev->wl,
2922 "Invalid max-TX-power value in SPROM.\n");
2923 max_pwr = INT_TO_Q52(20); /* fake it */
2924 dev->dev->bus_sprom->maxpwr_bg = max_pwr;
2925 }
2926
2927 /* Get desired power (in Q5.2) */
2928 if (phy->desired_txpower < 0)
2929 desired_pwr = INT_TO_Q52(0);
2930 else
2931 desired_pwr = INT_TO_Q52(phy->desired_txpower);
2932 /* And limit it. max_pwr already is Q5.2 */
2933 desired_pwr = clamp_val(desired_pwr, 0, max_pwr);
2934 if (b43_debug(dev, B43_DBG_XMITPOWER)) {
2935 b43dbg(dev->wl,
2936 "[TX power] current = " Q52_FMT
2937 " dBm, desired = " Q52_FMT
2938 " dBm, max = " Q52_FMT "\n",
2939 Q52_ARG(estimated_pwr),
2940 Q52_ARG(desired_pwr),
2941 Q52_ARG(max_pwr));
2942 }
2943
2944 /* Calculate the adjustment delta. */
2945 pwr_adjust = desired_pwr - estimated_pwr;
2946 if (pwr_adjust == 0)
2947 goto no_adjustment_needed;
2948
2949 /* RF attenuation delta. */
2950 rfatt_delta = ((pwr_adjust + 7) / 8);
2951 /* Lower attenuation => Bigger power output. Negate it. */
2952 rfatt_delta = -rfatt_delta;
2953
2954 /* Baseband attenuation delta. */
2955 bbatt_delta = pwr_adjust / 2;
2956 /* Lower attenuation => Bigger power output. Negate it. */
2957 bbatt_delta = -bbatt_delta;
2958 /* RF att affects power level 4 times as much as
2959 * Baseband attennuation. Subtract it. */
2960 bbatt_delta -= 4 * rfatt_delta;
2961
2962 #if B43_DEBUG
2963 if (b43_debug(dev, B43_DBG_XMITPOWER)) {
2964 int dbm = pwr_adjust < 0 ? -pwr_adjust : pwr_adjust;
2965 b43dbg(dev->wl,
2966 "[TX power deltas] %s" Q52_FMT " dBm => "
2967 "bbatt-delta = %d, rfatt-delta = %d\n",
2968 (pwr_adjust < 0 ? "-" : ""), Q52_ARG(dbm),
2969 bbatt_delta, rfatt_delta);
2970 }
2971 #endif /* DEBUG */
2972
2973 /* So do we finally need to adjust something in hardware? */
2974 if ((rfatt_delta == 0) && (bbatt_delta == 0))
2975 goto no_adjustment_needed;
2976
2977 /* Save the deltas for later when we adjust the power. */
2978 gphy->bbatt_delta = bbatt_delta;
2979 gphy->rfatt_delta = rfatt_delta;
2980
2981 /* We need to adjust the TX power on the device. */
2982 return B43_TXPWR_RES_NEED_ADJUST;
2983
2984 no_adjustment_needed:
2985 return B43_TXPWR_RES_DONE;
2986 }
2987
b43_gphy_op_pwork_15sec(struct b43_wldev * dev)2988 static void b43_gphy_op_pwork_15sec(struct b43_wldev *dev)
2989 {
2990 struct b43_phy *phy = &dev->phy;
2991 struct b43_phy_g *gphy = phy->g;
2992
2993 b43_mac_suspend(dev);
2994 //TODO: update_aci_moving_average
2995 if (gphy->aci_enable && gphy->aci_wlan_automatic) {
2996 if (!gphy->aci_enable && 1 /*TODO: not scanning? */ ) {
2997 if (0 /*TODO: bunch of conditions */ ) {
2998 phy->ops->interf_mitigation(dev,
2999 B43_INTERFMODE_MANUALWLAN);
3000 }
3001 } else if (0 /*TODO*/) {
3002 if (/*(aci_average > 1000) &&*/ !b43_gphy_aci_scan(dev))
3003 phy->ops->interf_mitigation(dev, B43_INTERFMODE_NONE);
3004 }
3005 } else if (gphy->interfmode == B43_INTERFMODE_NONWLAN &&
3006 phy->rev == 1) {
3007 //TODO: implement rev1 workaround
3008 }
3009 b43_lo_g_maintenance_work(dev);
3010 b43_mac_enable(dev);
3011 }
3012
b43_gphy_op_pwork_60sec(struct b43_wldev * dev)3013 static void b43_gphy_op_pwork_60sec(struct b43_wldev *dev)
3014 {
3015 struct b43_phy *phy = &dev->phy;
3016
3017 if (!(dev->dev->bus_sprom->boardflags_lo & B43_BFL_RSSI))
3018 return;
3019
3020 b43_mac_suspend(dev);
3021 b43_calc_nrssi_slope(dev);
3022 if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 8)) {
3023 u8 old_chan = phy->channel;
3024
3025 /* VCO Calibration */
3026 if (old_chan >= 8)
3027 b43_switch_channel(dev, 1);
3028 else
3029 b43_switch_channel(dev, 13);
3030 b43_switch_channel(dev, old_chan);
3031 }
3032 b43_mac_enable(dev);
3033 }
3034
3035 const struct b43_phy_operations b43_phyops_g = {
3036 .allocate = b43_gphy_op_allocate,
3037 .free = b43_gphy_op_free,
3038 .prepare_structs = b43_gphy_op_prepare_structs,
3039 .prepare_hardware = b43_gphy_op_prepare_hardware,
3040 .init = b43_gphy_op_init,
3041 .exit = b43_gphy_op_exit,
3042 .phy_read = b43_gphy_op_read,
3043 .phy_write = b43_gphy_op_write,
3044 .radio_read = b43_gphy_op_radio_read,
3045 .radio_write = b43_gphy_op_radio_write,
3046 .supports_hwpctl = b43_gphy_op_supports_hwpctl,
3047 .software_rfkill = b43_gphy_op_software_rfkill,
3048 .switch_analog = b43_phyop_switch_analog_generic,
3049 .switch_channel = b43_gphy_op_switch_channel,
3050 .get_default_chan = b43_gphy_op_get_default_chan,
3051 .set_rx_antenna = b43_gphy_op_set_rx_antenna,
3052 .interf_mitigation = b43_gphy_op_interf_mitigation,
3053 .recalc_txpower = b43_gphy_op_recalc_txpower,
3054 .adjust_txpower = b43_gphy_op_adjust_txpower,
3055 .pwork_15sec = b43_gphy_op_pwork_15sec,
3056 .pwork_60sec = b43_gphy_op_pwork_60sec,
3057 };
3058