1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3
4 Broadcom B43legacy wireless driver
5
6 Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
7 Stefano Brivio <stefano.brivio@polimi.it>
8 Michael Buesch <m@bues.ch>
9 Danny van Dyk <kugelfang@gentoo.org>
10 Andreas Jaggi <andreas.jaggi@waterwave.ch>
11 Copyright (c) 2007 Larry Finger <Larry.Finger@lwfinger.net>
12
13 Some parts of the code in this file are derived from the ipw2200
14 driver Copyright(c) 2003 - 2004 Intel Corporation.
15
16
17 */
18
19 #include <linux/delay.h>
20 #include <linux/pci.h>
21 #include <linux/sched.h>
22 #include <linux/slab.h>
23 #include <linux/types.h>
24
25 #include "b43legacy.h"
26 #include "phy.h"
27 #include "main.h"
28 #include "radio.h"
29 #include "ilt.h"
30
31
32 static const s8 b43legacy_tssi2dbm_b_table[] = {
33 0x4D, 0x4C, 0x4B, 0x4A,
34 0x4A, 0x49, 0x48, 0x47,
35 0x47, 0x46, 0x45, 0x45,
36 0x44, 0x43, 0x42, 0x42,
37 0x41, 0x40, 0x3F, 0x3E,
38 0x3D, 0x3C, 0x3B, 0x3A,
39 0x39, 0x38, 0x37, 0x36,
40 0x35, 0x34, 0x32, 0x31,
41 0x30, 0x2F, 0x2D, 0x2C,
42 0x2B, 0x29, 0x28, 0x26,
43 0x25, 0x23, 0x21, 0x1F,
44 0x1D, 0x1A, 0x17, 0x14,
45 0x10, 0x0C, 0x06, 0x00,
46 -7, -7, -7, -7,
47 -7, -7, -7, -7,
48 -7, -7, -7, -7,
49 };
50
51 static const s8 b43legacy_tssi2dbm_g_table[] = {
52 77, 77, 77, 76,
53 76, 76, 75, 75,
54 74, 74, 73, 73,
55 73, 72, 72, 71,
56 71, 70, 70, 69,
57 68, 68, 67, 67,
58 66, 65, 65, 64,
59 63, 63, 62, 61,
60 60, 59, 58, 57,
61 56, 55, 54, 53,
62 52, 50, 49, 47,
63 45, 43, 40, 37,
64 33, 28, 22, 14,
65 5, -7, -20, -20,
66 -20, -20, -20, -20,
67 -20, -20, -20, -20,
68 };
69
70 static void b43legacy_phy_initg(struct b43legacy_wldev *dev);
71
72 /* Lock the PHY registers against concurrent access from the microcode.
73 * This lock is nonrecursive. */
b43legacy_phy_lock(struct b43legacy_wldev * dev)74 void b43legacy_phy_lock(struct b43legacy_wldev *dev)
75 {
76 #if B43legacy_DEBUG
77 B43legacy_WARN_ON(dev->phy.phy_locked);
78 dev->phy.phy_locked = 1;
79 #endif
80
81 if (dev->dev->id.revision < 3) {
82 b43legacy_mac_suspend(dev);
83 } else {
84 if (!b43legacy_is_mode(dev->wl, NL80211_IFTYPE_AP))
85 b43legacy_power_saving_ctl_bits(dev, -1, 1);
86 }
87 }
88
b43legacy_phy_unlock(struct b43legacy_wldev * dev)89 void b43legacy_phy_unlock(struct b43legacy_wldev *dev)
90 {
91 #if B43legacy_DEBUG
92 B43legacy_WARN_ON(!dev->phy.phy_locked);
93 dev->phy.phy_locked = 0;
94 #endif
95
96 if (dev->dev->id.revision < 3) {
97 b43legacy_mac_enable(dev);
98 } else {
99 if (!b43legacy_is_mode(dev->wl, NL80211_IFTYPE_AP))
100 b43legacy_power_saving_ctl_bits(dev, -1, -1);
101 }
102 }
103
b43legacy_phy_read(struct b43legacy_wldev * dev,u16 offset)104 u16 b43legacy_phy_read(struct b43legacy_wldev *dev, u16 offset)
105 {
106 b43legacy_write16(dev, B43legacy_MMIO_PHY_CONTROL, offset);
107 return b43legacy_read16(dev, B43legacy_MMIO_PHY_DATA);
108 }
109
b43legacy_phy_write(struct b43legacy_wldev * dev,u16 offset,u16 val)110 void b43legacy_phy_write(struct b43legacy_wldev *dev, u16 offset, u16 val)
111 {
112 b43legacy_write16(dev, B43legacy_MMIO_PHY_CONTROL, offset);
113 b43legacy_write16(dev, B43legacy_MMIO_PHY_DATA, val);
114 }
115
b43legacy_phy_calibrate(struct b43legacy_wldev * dev)116 void b43legacy_phy_calibrate(struct b43legacy_wldev *dev)
117 {
118 struct b43legacy_phy *phy = &dev->phy;
119
120 b43legacy_read32(dev, B43legacy_MMIO_MACCTL); /* Dummy read. */
121 if (phy->calibrated)
122 return;
123 if (phy->type == B43legacy_PHYTYPE_G && phy->rev == 1) {
124 b43legacy_wireless_core_reset(dev, 0);
125 b43legacy_phy_initg(dev);
126 b43legacy_wireless_core_reset(dev, B43legacy_TMSLOW_GMODE);
127 }
128 phy->calibrated = 1;
129 }
130
131 /* initialize B PHY power control
132 * as described in https://bcm-specs.sipsolutions.net/InitPowerControl
133 */
b43legacy_phy_init_pctl(struct b43legacy_wldev * dev)134 static void b43legacy_phy_init_pctl(struct b43legacy_wldev *dev)
135 {
136 struct b43legacy_phy *phy = &dev->phy;
137 u16 saved_batt = 0;
138 u16 saved_ratt = 0;
139 u16 saved_txctl1 = 0;
140 int must_reset_txpower = 0;
141
142 B43legacy_BUG_ON(!(phy->type == B43legacy_PHYTYPE_B ||
143 phy->type == B43legacy_PHYTYPE_G));
144 if (is_bcm_board_vendor(dev) &&
145 (dev->dev->bus->boardinfo.type == 0x0416))
146 return;
147
148 b43legacy_phy_write(dev, 0x0028, 0x8018);
149 b43legacy_write16(dev, 0x03E6, b43legacy_read16(dev, 0x03E6) & 0xFFDF);
150
151 if (phy->type == B43legacy_PHYTYPE_G) {
152 if (!phy->gmode)
153 return;
154 b43legacy_phy_write(dev, 0x047A, 0xC111);
155 }
156 if (phy->savedpctlreg != 0xFFFF)
157 return;
158 #ifdef CONFIG_B43LEGACY_DEBUG
159 if (phy->manual_txpower_control)
160 return;
161 #endif
162
163 if (phy->type == B43legacy_PHYTYPE_B &&
164 phy->rev >= 2 &&
165 phy->radio_ver == 0x2050)
166 b43legacy_radio_write16(dev, 0x0076,
167 b43legacy_radio_read16(dev, 0x0076)
168 | 0x0084);
169 else {
170 saved_batt = phy->bbatt;
171 saved_ratt = phy->rfatt;
172 saved_txctl1 = phy->txctl1;
173 if ((phy->radio_rev >= 6) && (phy->radio_rev <= 8)
174 && /*FIXME: incomplete specs for 5 < revision < 9 */ 0)
175 b43legacy_radio_set_txpower_bg(dev, 0xB, 0x1F, 0);
176 else
177 b43legacy_radio_set_txpower_bg(dev, 0xB, 9, 0);
178 must_reset_txpower = 1;
179 }
180 b43legacy_dummy_transmission(dev);
181
182 phy->savedpctlreg = b43legacy_phy_read(dev, B43legacy_PHY_G_PCTL);
183
184 if (must_reset_txpower)
185 b43legacy_radio_set_txpower_bg(dev, saved_batt, saved_ratt,
186 saved_txctl1);
187 else
188 b43legacy_radio_write16(dev, 0x0076, b43legacy_radio_read16(dev,
189 0x0076) & 0xFF7B);
190 b43legacy_radio_clear_tssi(dev);
191 }
192
b43legacy_phy_agcsetup(struct b43legacy_wldev * dev)193 static void b43legacy_phy_agcsetup(struct b43legacy_wldev *dev)
194 {
195 struct b43legacy_phy *phy = &dev->phy;
196 u16 offset = 0x0000;
197
198 if (phy->rev == 1)
199 offset = 0x4C00;
200
201 b43legacy_ilt_write(dev, offset, 0x00FE);
202 b43legacy_ilt_write(dev, offset + 1, 0x000D);
203 b43legacy_ilt_write(dev, offset + 2, 0x0013);
204 b43legacy_ilt_write(dev, offset + 3, 0x0019);
205
206 if (phy->rev == 1) {
207 b43legacy_ilt_write(dev, 0x1800, 0x2710);
208 b43legacy_ilt_write(dev, 0x1801, 0x9B83);
209 b43legacy_ilt_write(dev, 0x1802, 0x9B83);
210 b43legacy_ilt_write(dev, 0x1803, 0x0F8D);
211 b43legacy_phy_write(dev, 0x0455, 0x0004);
212 }
213
214 b43legacy_phy_write(dev, 0x04A5, (b43legacy_phy_read(dev, 0x04A5)
215 & 0x00FF) | 0x5700);
216 b43legacy_phy_write(dev, 0x041A, (b43legacy_phy_read(dev, 0x041A)
217 & 0xFF80) | 0x000F);
218 b43legacy_phy_write(dev, 0x041A, (b43legacy_phy_read(dev, 0x041A)
219 & 0xC07F) | 0x2B80);
220 b43legacy_phy_write(dev, 0x048C, (b43legacy_phy_read(dev, 0x048C)
221 & 0xF0FF) | 0x0300);
222
223 b43legacy_radio_write16(dev, 0x007A,
224 b43legacy_radio_read16(dev, 0x007A)
225 | 0x0008);
226
227 b43legacy_phy_write(dev, 0x04A0, (b43legacy_phy_read(dev, 0x04A0)
228 & 0xFFF0) | 0x0008);
229 b43legacy_phy_write(dev, 0x04A1, (b43legacy_phy_read(dev, 0x04A1)
230 & 0xF0FF) | 0x0600);
231 b43legacy_phy_write(dev, 0x04A2, (b43legacy_phy_read(dev, 0x04A2)
232 & 0xF0FF) | 0x0700);
233 b43legacy_phy_write(dev, 0x04A0, (b43legacy_phy_read(dev, 0x04A0)
234 & 0xF0FF) | 0x0100);
235
236 if (phy->rev == 1)
237 b43legacy_phy_write(dev, 0x04A2,
238 (b43legacy_phy_read(dev, 0x04A2)
239 & 0xFFF0) | 0x0007);
240
241 b43legacy_phy_write(dev, 0x0488, (b43legacy_phy_read(dev, 0x0488)
242 & 0xFF00) | 0x001C);
243 b43legacy_phy_write(dev, 0x0488, (b43legacy_phy_read(dev, 0x0488)
244 & 0xC0FF) | 0x0200);
245 b43legacy_phy_write(dev, 0x0496, (b43legacy_phy_read(dev, 0x0496)
246 & 0xFF00) | 0x001C);
247 b43legacy_phy_write(dev, 0x0489, (b43legacy_phy_read(dev, 0x0489)
248 & 0xFF00) | 0x0020);
249 b43legacy_phy_write(dev, 0x0489, (b43legacy_phy_read(dev, 0x0489)
250 & 0xC0FF) | 0x0200);
251 b43legacy_phy_write(dev, 0x0482, (b43legacy_phy_read(dev, 0x0482)
252 & 0xFF00) | 0x002E);
253 b43legacy_phy_write(dev, 0x0496, (b43legacy_phy_read(dev, 0x0496)
254 & 0x00FF) | 0x1A00);
255 b43legacy_phy_write(dev, 0x0481, (b43legacy_phy_read(dev, 0x0481)
256 & 0xFF00) | 0x0028);
257 b43legacy_phy_write(dev, 0x0481, (b43legacy_phy_read(dev, 0x0481)
258 & 0x00FF) | 0x2C00);
259
260 if (phy->rev == 1) {
261 b43legacy_phy_write(dev, 0x0430, 0x092B);
262 b43legacy_phy_write(dev, 0x041B,
263 (b43legacy_phy_read(dev, 0x041B)
264 & 0xFFE1) | 0x0002);
265 } else {
266 b43legacy_phy_write(dev, 0x041B,
267 b43legacy_phy_read(dev, 0x041B) & 0xFFE1);
268 b43legacy_phy_write(dev, 0x041F, 0x287A);
269 b43legacy_phy_write(dev, 0x0420,
270 (b43legacy_phy_read(dev, 0x0420)
271 & 0xFFF0) | 0x0004);
272 }
273
274 if (phy->rev > 2) {
275 b43legacy_phy_write(dev, 0x0422, 0x287A);
276 b43legacy_phy_write(dev, 0x0420,
277 (b43legacy_phy_read(dev, 0x0420)
278 & 0x0FFF) | 0x3000);
279 }
280
281 b43legacy_phy_write(dev, 0x04A8, (b43legacy_phy_read(dev, 0x04A8)
282 & 0x8080) | 0x7874);
283 b43legacy_phy_write(dev, 0x048E, 0x1C00);
284
285 if (phy->rev == 1) {
286 b43legacy_phy_write(dev, 0x04AB,
287 (b43legacy_phy_read(dev, 0x04AB)
288 & 0xF0FF) | 0x0600);
289 b43legacy_phy_write(dev, 0x048B, 0x005E);
290 b43legacy_phy_write(dev, 0x048C,
291 (b43legacy_phy_read(dev, 0x048C) & 0xFF00)
292 | 0x001E);
293 b43legacy_phy_write(dev, 0x048D, 0x0002);
294 }
295
296 b43legacy_ilt_write(dev, offset + 0x0800, 0);
297 b43legacy_ilt_write(dev, offset + 0x0801, 7);
298 b43legacy_ilt_write(dev, offset + 0x0802, 16);
299 b43legacy_ilt_write(dev, offset + 0x0803, 28);
300
301 if (phy->rev >= 6) {
302 b43legacy_phy_write(dev, 0x0426,
303 (b43legacy_phy_read(dev, 0x0426) & 0xFFFC));
304 b43legacy_phy_write(dev, 0x0426,
305 (b43legacy_phy_read(dev, 0x0426) & 0xEFFF));
306 }
307 }
308
b43legacy_phy_setupg(struct b43legacy_wldev * dev)309 static void b43legacy_phy_setupg(struct b43legacy_wldev *dev)
310 {
311 struct b43legacy_phy *phy = &dev->phy;
312 u16 i;
313
314 B43legacy_BUG_ON(phy->type != B43legacy_PHYTYPE_G);
315 if (phy->rev == 1) {
316 b43legacy_phy_write(dev, 0x0406, 0x4F19);
317 b43legacy_phy_write(dev, B43legacy_PHY_G_CRS,
318 (b43legacy_phy_read(dev,
319 B43legacy_PHY_G_CRS) & 0xFC3F) | 0x0340);
320 b43legacy_phy_write(dev, 0x042C, 0x005A);
321 b43legacy_phy_write(dev, 0x0427, 0x001A);
322
323 for (i = 0; i < B43legacy_ILT_FINEFREQG_SIZE; i++)
324 b43legacy_ilt_write(dev, 0x5800 + i,
325 b43legacy_ilt_finefreqg[i]);
326 for (i = 0; i < B43legacy_ILT_NOISEG1_SIZE; i++)
327 b43legacy_ilt_write(dev, 0x1800 + i,
328 b43legacy_ilt_noiseg1[i]);
329 for (i = 0; i < B43legacy_ILT_ROTOR_SIZE; i++)
330 b43legacy_ilt_write32(dev, 0x2000 + i,
331 b43legacy_ilt_rotor[i]);
332 } else {
333 /* nrssi values are signed 6-bit values. Why 0x7654 here? */
334 b43legacy_nrssi_hw_write(dev, 0xBA98, (s16)0x7654);
335
336 if (phy->rev == 2) {
337 b43legacy_phy_write(dev, 0x04C0, 0x1861);
338 b43legacy_phy_write(dev, 0x04C1, 0x0271);
339 } else if (phy->rev > 2) {
340 b43legacy_phy_write(dev, 0x04C0, 0x0098);
341 b43legacy_phy_write(dev, 0x04C1, 0x0070);
342 b43legacy_phy_write(dev, 0x04C9, 0x0080);
343 }
344 b43legacy_phy_write(dev, 0x042B, b43legacy_phy_read(dev,
345 0x042B) | 0x800);
346
347 for (i = 0; i < 64; i++)
348 b43legacy_ilt_write(dev, 0x4000 + i, i);
349 for (i = 0; i < B43legacy_ILT_NOISEG2_SIZE; i++)
350 b43legacy_ilt_write(dev, 0x1800 + i,
351 b43legacy_ilt_noiseg2[i]);
352 }
353
354 if (phy->rev <= 2)
355 for (i = 0; i < B43legacy_ILT_NOISESCALEG_SIZE; i++)
356 b43legacy_ilt_write(dev, 0x1400 + i,
357 b43legacy_ilt_noisescaleg1[i]);
358 else if ((phy->rev >= 7) && (b43legacy_phy_read(dev, 0x0449) & 0x0200))
359 for (i = 0; i < B43legacy_ILT_NOISESCALEG_SIZE; i++)
360 b43legacy_ilt_write(dev, 0x1400 + i,
361 b43legacy_ilt_noisescaleg3[i]);
362 else
363 for (i = 0; i < B43legacy_ILT_NOISESCALEG_SIZE; i++)
364 b43legacy_ilt_write(dev, 0x1400 + i,
365 b43legacy_ilt_noisescaleg2[i]);
366
367 if (phy->rev == 2)
368 for (i = 0; i < B43legacy_ILT_SIGMASQR_SIZE; i++)
369 b43legacy_ilt_write(dev, 0x5000 + i,
370 b43legacy_ilt_sigmasqr1[i]);
371 else if ((phy->rev > 2) && (phy->rev <= 8))
372 for (i = 0; i < B43legacy_ILT_SIGMASQR_SIZE; i++)
373 b43legacy_ilt_write(dev, 0x5000 + i,
374 b43legacy_ilt_sigmasqr2[i]);
375
376 if (phy->rev == 1) {
377 for (i = 0; i < B43legacy_ILT_RETARD_SIZE; i++)
378 b43legacy_ilt_write32(dev, 0x2400 + i,
379 b43legacy_ilt_retard[i]);
380 for (i = 4; i < 20; i++)
381 b43legacy_ilt_write(dev, 0x5400 + i, 0x0020);
382 b43legacy_phy_agcsetup(dev);
383
384 if (is_bcm_board_vendor(dev) &&
385 (dev->dev->bus->boardinfo.type == 0x0416) &&
386 (dev->dev->bus->sprom.board_rev == 0x0017))
387 return;
388
389 b43legacy_ilt_write(dev, 0x5001, 0x0002);
390 b43legacy_ilt_write(dev, 0x5002, 0x0001);
391 } else {
392 for (i = 0; i <= 0x20; i++)
393 b43legacy_ilt_write(dev, 0x1000 + i, 0x0820);
394 b43legacy_phy_agcsetup(dev);
395 b43legacy_phy_read(dev, 0x0400); /* dummy read */
396 b43legacy_phy_write(dev, 0x0403, 0x1000);
397 b43legacy_ilt_write(dev, 0x3C02, 0x000F);
398 b43legacy_ilt_write(dev, 0x3C03, 0x0014);
399
400 if (is_bcm_board_vendor(dev) &&
401 (dev->dev->bus->boardinfo.type == 0x0416) &&
402 (dev->dev->bus->sprom.board_rev == 0x0017))
403 return;
404
405 b43legacy_ilt_write(dev, 0x0401, 0x0002);
406 b43legacy_ilt_write(dev, 0x0402, 0x0001);
407 }
408 }
409
410 /* Initialize the APHY portion of a GPHY. */
b43legacy_phy_inita(struct b43legacy_wldev * dev)411 static void b43legacy_phy_inita(struct b43legacy_wldev *dev)
412 {
413
414 might_sleep();
415
416 b43legacy_phy_setupg(dev);
417 if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_PACTRL)
418 b43legacy_phy_write(dev, 0x046E, 0x03CF);
419 }
420
b43legacy_phy_initb2(struct b43legacy_wldev * dev)421 static void b43legacy_phy_initb2(struct b43legacy_wldev *dev)
422 {
423 struct b43legacy_phy *phy = &dev->phy;
424 u16 offset;
425 int val;
426
427 b43legacy_write16(dev, 0x03EC, 0x3F22);
428 b43legacy_phy_write(dev, 0x0020, 0x301C);
429 b43legacy_phy_write(dev, 0x0026, 0x0000);
430 b43legacy_phy_write(dev, 0x0030, 0x00C6);
431 b43legacy_phy_write(dev, 0x0088, 0x3E00);
432 val = 0x3C3D;
433 for (offset = 0x0089; offset < 0x00A7; offset++) {
434 b43legacy_phy_write(dev, offset, val);
435 val -= 0x0202;
436 }
437 b43legacy_phy_write(dev, 0x03E4, 0x3000);
438 b43legacy_radio_selectchannel(dev, phy->channel, 0);
439 if (phy->radio_ver != 0x2050) {
440 b43legacy_radio_write16(dev, 0x0075, 0x0080);
441 b43legacy_radio_write16(dev, 0x0079, 0x0081);
442 }
443 b43legacy_radio_write16(dev, 0x0050, 0x0020);
444 b43legacy_radio_write16(dev, 0x0050, 0x0023);
445 if (phy->radio_ver == 0x2050) {
446 b43legacy_radio_write16(dev, 0x0050, 0x0020);
447 b43legacy_radio_write16(dev, 0x005A, 0x0070);
448 b43legacy_radio_write16(dev, 0x005B, 0x007B);
449 b43legacy_radio_write16(dev, 0x005C, 0x00B0);
450 b43legacy_radio_write16(dev, 0x007A, 0x000F);
451 b43legacy_phy_write(dev, 0x0038, 0x0677);
452 b43legacy_radio_init2050(dev);
453 }
454 b43legacy_phy_write(dev, 0x0014, 0x0080);
455 b43legacy_phy_write(dev, 0x0032, 0x00CA);
456 b43legacy_phy_write(dev, 0x0032, 0x00CC);
457 b43legacy_phy_write(dev, 0x0035, 0x07C2);
458 b43legacy_phy_lo_b_measure(dev);
459 b43legacy_phy_write(dev, 0x0026, 0xCC00);
460 if (phy->radio_ver != 0x2050)
461 b43legacy_phy_write(dev, 0x0026, 0xCE00);
462 b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, 0x1000);
463 b43legacy_phy_write(dev, 0x002A, 0x88A3);
464 if (phy->radio_ver != 0x2050)
465 b43legacy_phy_write(dev, 0x002A, 0x88C2);
466 b43legacy_radio_set_txpower_bg(dev, 0xFFFF, 0xFFFF, 0xFFFF);
467 b43legacy_phy_init_pctl(dev);
468 }
469
b43legacy_phy_initb4(struct b43legacy_wldev * dev)470 static void b43legacy_phy_initb4(struct b43legacy_wldev *dev)
471 {
472 struct b43legacy_phy *phy = &dev->phy;
473 u16 offset;
474 u16 val;
475
476 b43legacy_write16(dev, 0x03EC, 0x3F22);
477 b43legacy_phy_write(dev, 0x0020, 0x301C);
478 b43legacy_phy_write(dev, 0x0026, 0x0000);
479 b43legacy_phy_write(dev, 0x0030, 0x00C6);
480 b43legacy_phy_write(dev, 0x0088, 0x3E00);
481 val = 0x3C3D;
482 for (offset = 0x0089; offset < 0x00A7; offset++) {
483 b43legacy_phy_write(dev, offset, val);
484 val -= 0x0202;
485 }
486 b43legacy_phy_write(dev, 0x03E4, 0x3000);
487 b43legacy_radio_selectchannel(dev, phy->channel, 0);
488 if (phy->radio_ver != 0x2050) {
489 b43legacy_radio_write16(dev, 0x0075, 0x0080);
490 b43legacy_radio_write16(dev, 0x0079, 0x0081);
491 }
492 b43legacy_radio_write16(dev, 0x0050, 0x0020);
493 b43legacy_radio_write16(dev, 0x0050, 0x0023);
494 if (phy->radio_ver == 0x2050) {
495 b43legacy_radio_write16(dev, 0x0050, 0x0020);
496 b43legacy_radio_write16(dev, 0x005A, 0x0070);
497 b43legacy_radio_write16(dev, 0x005B, 0x007B);
498 b43legacy_radio_write16(dev, 0x005C, 0x00B0);
499 b43legacy_radio_write16(dev, 0x007A, 0x000F);
500 b43legacy_phy_write(dev, 0x0038, 0x0677);
501 b43legacy_radio_init2050(dev);
502 }
503 b43legacy_phy_write(dev, 0x0014, 0x0080);
504 b43legacy_phy_write(dev, 0x0032, 0x00CA);
505 if (phy->radio_ver == 0x2050)
506 b43legacy_phy_write(dev, 0x0032, 0x00E0);
507 b43legacy_phy_write(dev, 0x0035, 0x07C2);
508
509 b43legacy_phy_lo_b_measure(dev);
510
511 b43legacy_phy_write(dev, 0x0026, 0xCC00);
512 if (phy->radio_ver == 0x2050)
513 b43legacy_phy_write(dev, 0x0026, 0xCE00);
514 b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, 0x1100);
515 b43legacy_phy_write(dev, 0x002A, 0x88A3);
516 if (phy->radio_ver == 0x2050)
517 b43legacy_phy_write(dev, 0x002A, 0x88C2);
518 b43legacy_radio_set_txpower_bg(dev, 0xFFFF, 0xFFFF, 0xFFFF);
519 if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_RSSI) {
520 b43legacy_calc_nrssi_slope(dev);
521 b43legacy_calc_nrssi_threshold(dev);
522 }
523 b43legacy_phy_init_pctl(dev);
524 }
525
b43legacy_phy_initb5(struct b43legacy_wldev * dev)526 static void b43legacy_phy_initb5(struct b43legacy_wldev *dev)
527 {
528 struct b43legacy_phy *phy = &dev->phy;
529 u16 offset;
530 u16 value;
531 u8 old_channel;
532
533 if (phy->analog == 1)
534 b43legacy_radio_write16(dev, 0x007A,
535 b43legacy_radio_read16(dev, 0x007A)
536 | 0x0050);
537 if (!is_bcm_board_vendor(dev) &&
538 (dev->dev->bus->boardinfo.type != 0x0416)) {
539 value = 0x2120;
540 for (offset = 0x00A8 ; offset < 0x00C7; offset++) {
541 b43legacy_phy_write(dev, offset, value);
542 value += 0x0202;
543 }
544 }
545 b43legacy_phy_write(dev, 0x0035,
546 (b43legacy_phy_read(dev, 0x0035) & 0xF0FF)
547 | 0x0700);
548 if (phy->radio_ver == 0x2050)
549 b43legacy_phy_write(dev, 0x0038, 0x0667);
550
551 if (phy->gmode) {
552 if (phy->radio_ver == 0x2050) {
553 b43legacy_radio_write16(dev, 0x007A,
554 b43legacy_radio_read16(dev, 0x007A)
555 | 0x0020);
556 b43legacy_radio_write16(dev, 0x0051,
557 b43legacy_radio_read16(dev, 0x0051)
558 | 0x0004);
559 }
560 b43legacy_write16(dev, B43legacy_MMIO_PHY_RADIO, 0x0000);
561
562 b43legacy_phy_write(dev, 0x0802, b43legacy_phy_read(dev, 0x0802)
563 | 0x0100);
564 b43legacy_phy_write(dev, 0x042B, b43legacy_phy_read(dev, 0x042B)
565 | 0x2000);
566
567 b43legacy_phy_write(dev, 0x001C, 0x186A);
568
569 b43legacy_phy_write(dev, 0x0013, (b43legacy_phy_read(dev,
570 0x0013) & 0x00FF) | 0x1900);
571 b43legacy_phy_write(dev, 0x0035, (b43legacy_phy_read(dev,
572 0x0035) & 0xFFC0) | 0x0064);
573 b43legacy_phy_write(dev, 0x005D, (b43legacy_phy_read(dev,
574 0x005D) & 0xFF80) | 0x000A);
575 b43legacy_phy_write(dev, 0x5B, 0x0000);
576 b43legacy_phy_write(dev, 0x5C, 0x0000);
577 }
578
579 if (dev->bad_frames_preempt)
580 b43legacy_phy_write(dev, B43legacy_PHY_RADIO_BITFIELD,
581 b43legacy_phy_read(dev,
582 B43legacy_PHY_RADIO_BITFIELD) | (1 << 12));
583
584 if (phy->analog == 1) {
585 b43legacy_phy_write(dev, 0x0026, 0xCE00);
586 b43legacy_phy_write(dev, 0x0021, 0x3763);
587 b43legacy_phy_write(dev, 0x0022, 0x1BC3);
588 b43legacy_phy_write(dev, 0x0023, 0x06F9);
589 b43legacy_phy_write(dev, 0x0024, 0x037E);
590 } else
591 b43legacy_phy_write(dev, 0x0026, 0xCC00);
592 b43legacy_phy_write(dev, 0x0030, 0x00C6);
593 b43legacy_write16(dev, 0x03EC, 0x3F22);
594
595 if (phy->analog == 1)
596 b43legacy_phy_write(dev, 0x0020, 0x3E1C);
597 else
598 b43legacy_phy_write(dev, 0x0020, 0x301C);
599
600 if (phy->analog == 0)
601 b43legacy_write16(dev, 0x03E4, 0x3000);
602
603 old_channel = (phy->channel == 0xFF) ? 1 : phy->channel;
604 /* Force to channel 7, even if not supported. */
605 b43legacy_radio_selectchannel(dev, 7, 0);
606
607 if (phy->radio_ver != 0x2050) {
608 b43legacy_radio_write16(dev, 0x0075, 0x0080);
609 b43legacy_radio_write16(dev, 0x0079, 0x0081);
610 }
611
612 b43legacy_radio_write16(dev, 0x0050, 0x0020);
613 b43legacy_radio_write16(dev, 0x0050, 0x0023);
614
615 if (phy->radio_ver == 0x2050) {
616 b43legacy_radio_write16(dev, 0x0050, 0x0020);
617 b43legacy_radio_write16(dev, 0x005A, 0x0070);
618 }
619
620 b43legacy_radio_write16(dev, 0x005B, 0x007B);
621 b43legacy_radio_write16(dev, 0x005C, 0x00B0);
622
623 b43legacy_radio_write16(dev, 0x007A, b43legacy_radio_read16(dev,
624 0x007A) | 0x0007);
625
626 b43legacy_radio_selectchannel(dev, old_channel, 0);
627
628 b43legacy_phy_write(dev, 0x0014, 0x0080);
629 b43legacy_phy_write(dev, 0x0032, 0x00CA);
630 b43legacy_phy_write(dev, 0x002A, 0x88A3);
631
632 b43legacy_radio_set_txpower_bg(dev, 0xFFFF, 0xFFFF, 0xFFFF);
633
634 if (phy->radio_ver == 0x2050)
635 b43legacy_radio_write16(dev, 0x005D, 0x000D);
636
637 b43legacy_write16(dev, 0x03E4, (b43legacy_read16(dev, 0x03E4) &
638 0xFFC0) | 0x0004);
639 }
640
b43legacy_phy_initb6(struct b43legacy_wldev * dev)641 static void b43legacy_phy_initb6(struct b43legacy_wldev *dev)
642 {
643 struct b43legacy_phy *phy = &dev->phy;
644 u16 offset;
645 u16 val;
646 u8 old_channel;
647
648 b43legacy_phy_write(dev, 0x003E, 0x817A);
649 b43legacy_radio_write16(dev, 0x007A,
650 (b43legacy_radio_read16(dev, 0x007A) | 0x0058));
651 if (phy->radio_rev == 4 ||
652 phy->radio_rev == 5) {
653 b43legacy_radio_write16(dev, 0x0051, 0x0037);
654 b43legacy_radio_write16(dev, 0x0052, 0x0070);
655 b43legacy_radio_write16(dev, 0x0053, 0x00B3);
656 b43legacy_radio_write16(dev, 0x0054, 0x009B);
657 b43legacy_radio_write16(dev, 0x005A, 0x0088);
658 b43legacy_radio_write16(dev, 0x005B, 0x0088);
659 b43legacy_radio_write16(dev, 0x005D, 0x0088);
660 b43legacy_radio_write16(dev, 0x005E, 0x0088);
661 b43legacy_radio_write16(dev, 0x007D, 0x0088);
662 b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
663 B43legacy_UCODEFLAGS_OFFSET,
664 (b43legacy_shm_read32(dev,
665 B43legacy_SHM_SHARED,
666 B43legacy_UCODEFLAGS_OFFSET)
667 | 0x00000200));
668 }
669 if (phy->radio_rev == 8) {
670 b43legacy_radio_write16(dev, 0x0051, 0x0000);
671 b43legacy_radio_write16(dev, 0x0052, 0x0040);
672 b43legacy_radio_write16(dev, 0x0053, 0x00B7);
673 b43legacy_radio_write16(dev, 0x0054, 0x0098);
674 b43legacy_radio_write16(dev, 0x005A, 0x0088);
675 b43legacy_radio_write16(dev, 0x005B, 0x006B);
676 b43legacy_radio_write16(dev, 0x005C, 0x000F);
677 if (dev->dev->bus->sprom.boardflags_lo & 0x8000) {
678 b43legacy_radio_write16(dev, 0x005D, 0x00FA);
679 b43legacy_radio_write16(dev, 0x005E, 0x00D8);
680 } else {
681 b43legacy_radio_write16(dev, 0x005D, 0x00F5);
682 b43legacy_radio_write16(dev, 0x005E, 0x00B8);
683 }
684 b43legacy_radio_write16(dev, 0x0073, 0x0003);
685 b43legacy_radio_write16(dev, 0x007D, 0x00A8);
686 b43legacy_radio_write16(dev, 0x007C, 0x0001);
687 b43legacy_radio_write16(dev, 0x007E, 0x0008);
688 }
689 val = 0x1E1F;
690 for (offset = 0x0088; offset < 0x0098; offset++) {
691 b43legacy_phy_write(dev, offset, val);
692 val -= 0x0202;
693 }
694 val = 0x3E3F;
695 for (offset = 0x0098; offset < 0x00A8; offset++) {
696 b43legacy_phy_write(dev, offset, val);
697 val -= 0x0202;
698 }
699 val = 0x2120;
700 for (offset = 0x00A8; offset < 0x00C8; offset++) {
701 b43legacy_phy_write(dev, offset, (val & 0x3F3F));
702 val += 0x0202;
703 }
704 if (phy->type == B43legacy_PHYTYPE_G) {
705 b43legacy_radio_write16(dev, 0x007A,
706 b43legacy_radio_read16(dev, 0x007A) |
707 0x0020);
708 b43legacy_radio_write16(dev, 0x0051,
709 b43legacy_radio_read16(dev, 0x0051) |
710 0x0004);
711 b43legacy_phy_write(dev, 0x0802,
712 b43legacy_phy_read(dev, 0x0802) | 0x0100);
713 b43legacy_phy_write(dev, 0x042B,
714 b43legacy_phy_read(dev, 0x042B) | 0x2000);
715 b43legacy_phy_write(dev, 0x5B, 0x0000);
716 b43legacy_phy_write(dev, 0x5C, 0x0000);
717 }
718
719 old_channel = phy->channel;
720 if (old_channel >= 8)
721 b43legacy_radio_selectchannel(dev, 1, 0);
722 else
723 b43legacy_radio_selectchannel(dev, 13, 0);
724
725 b43legacy_radio_write16(dev, 0x0050, 0x0020);
726 b43legacy_radio_write16(dev, 0x0050, 0x0023);
727 udelay(40);
728 if (phy->radio_rev < 6 || phy->radio_rev == 8) {
729 b43legacy_radio_write16(dev, 0x007C,
730 (b43legacy_radio_read16(dev, 0x007C)
731 | 0x0002));
732 b43legacy_radio_write16(dev, 0x0050, 0x0020);
733 }
734 if (phy->radio_rev <= 2) {
735 b43legacy_radio_write16(dev, 0x0050, 0x0020);
736 b43legacy_radio_write16(dev, 0x005A, 0x0070);
737 b43legacy_radio_write16(dev, 0x005B, 0x007B);
738 b43legacy_radio_write16(dev, 0x005C, 0x00B0);
739 }
740 b43legacy_radio_write16(dev, 0x007A,
741 (b43legacy_radio_read16(dev,
742 0x007A) & 0x00F8) | 0x0007);
743
744 b43legacy_radio_selectchannel(dev, old_channel, 0);
745
746 b43legacy_phy_write(dev, 0x0014, 0x0200);
747 if (phy->radio_rev >= 6)
748 b43legacy_phy_write(dev, 0x002A, 0x88C2);
749 else
750 b43legacy_phy_write(dev, 0x002A, 0x8AC0);
751 b43legacy_phy_write(dev, 0x0038, 0x0668);
752 b43legacy_radio_set_txpower_bg(dev, 0xFFFF, 0xFFFF, 0xFFFF);
753 if (phy->radio_rev == 4 || phy->radio_rev == 5)
754 b43legacy_phy_write(dev, 0x005D, (b43legacy_phy_read(dev,
755 0x005D) & 0xFF80) | 0x0003);
756 if (phy->radio_rev <= 2)
757 b43legacy_radio_write16(dev, 0x005D, 0x000D);
758
759 if (phy->analog == 4) {
760 b43legacy_write16(dev, 0x03E4, 0x0009);
761 b43legacy_phy_write(dev, 0x61, b43legacy_phy_read(dev, 0x61)
762 & 0xFFF);
763 } else
764 b43legacy_phy_write(dev, 0x0002, (b43legacy_phy_read(dev,
765 0x0002) & 0xFFC0) | 0x0004);
766 if (phy->type == B43legacy_PHYTYPE_G)
767 b43legacy_write16(dev, 0x03E6, 0x0);
768 if (phy->type == B43legacy_PHYTYPE_B) {
769 b43legacy_write16(dev, 0x03E6, 0x8140);
770 b43legacy_phy_write(dev, 0x0016, 0x0410);
771 b43legacy_phy_write(dev, 0x0017, 0x0820);
772 b43legacy_phy_write(dev, 0x0062, 0x0007);
773 b43legacy_radio_init2050(dev);
774 b43legacy_phy_lo_g_measure(dev);
775 if (dev->dev->bus->sprom.boardflags_lo &
776 B43legacy_BFL_RSSI) {
777 b43legacy_calc_nrssi_slope(dev);
778 b43legacy_calc_nrssi_threshold(dev);
779 }
780 b43legacy_phy_init_pctl(dev);
781 }
782 }
783
b43legacy_calc_loopback_gain(struct b43legacy_wldev * dev)784 static void b43legacy_calc_loopback_gain(struct b43legacy_wldev *dev)
785 {
786 struct b43legacy_phy *phy = &dev->phy;
787 u16 backup_phy[15] = {0};
788 u16 backup_radio[3];
789 u16 backup_bband;
790 u16 i;
791 u16 loop1_cnt;
792 u16 loop1_done;
793 u16 loop1_omitted;
794 u16 loop2_done;
795
796 backup_phy[0] = b43legacy_phy_read(dev, 0x0429);
797 backup_phy[1] = b43legacy_phy_read(dev, 0x0001);
798 backup_phy[2] = b43legacy_phy_read(dev, 0x0811);
799 backup_phy[3] = b43legacy_phy_read(dev, 0x0812);
800 if (phy->rev != 1) {
801 backup_phy[4] = b43legacy_phy_read(dev, 0x0814);
802 backup_phy[5] = b43legacy_phy_read(dev, 0x0815);
803 }
804 backup_phy[6] = b43legacy_phy_read(dev, 0x005A);
805 backup_phy[7] = b43legacy_phy_read(dev, 0x0059);
806 backup_phy[8] = b43legacy_phy_read(dev, 0x0058);
807 backup_phy[9] = b43legacy_phy_read(dev, 0x000A);
808 backup_phy[10] = b43legacy_phy_read(dev, 0x0003);
809 backup_phy[11] = b43legacy_phy_read(dev, 0x080F);
810 backup_phy[12] = b43legacy_phy_read(dev, 0x0810);
811 backup_phy[13] = b43legacy_phy_read(dev, 0x002B);
812 backup_phy[14] = b43legacy_phy_read(dev, 0x0015);
813 b43legacy_phy_read(dev, 0x002D); /* dummy read */
814 backup_bband = phy->bbatt;
815 backup_radio[0] = b43legacy_radio_read16(dev, 0x0052);
816 backup_radio[1] = b43legacy_radio_read16(dev, 0x0043);
817 backup_radio[2] = b43legacy_radio_read16(dev, 0x007A);
818
819 b43legacy_phy_write(dev, 0x0429,
820 b43legacy_phy_read(dev, 0x0429) & 0x3FFF);
821 b43legacy_phy_write(dev, 0x0001,
822 b43legacy_phy_read(dev, 0x0001) & 0x8000);
823 b43legacy_phy_write(dev, 0x0811,
824 b43legacy_phy_read(dev, 0x0811) | 0x0002);
825 b43legacy_phy_write(dev, 0x0812,
826 b43legacy_phy_read(dev, 0x0812) & 0xFFFD);
827 b43legacy_phy_write(dev, 0x0811,
828 b43legacy_phy_read(dev, 0x0811) | 0x0001);
829 b43legacy_phy_write(dev, 0x0812,
830 b43legacy_phy_read(dev, 0x0812) & 0xFFFE);
831 if (phy->rev != 1) {
832 b43legacy_phy_write(dev, 0x0814,
833 b43legacy_phy_read(dev, 0x0814) | 0x0001);
834 b43legacy_phy_write(dev, 0x0815,
835 b43legacy_phy_read(dev, 0x0815) & 0xFFFE);
836 b43legacy_phy_write(dev, 0x0814,
837 b43legacy_phy_read(dev, 0x0814) | 0x0002);
838 b43legacy_phy_write(dev, 0x0815,
839 b43legacy_phy_read(dev, 0x0815) & 0xFFFD);
840 }
841 b43legacy_phy_write(dev, 0x0811, b43legacy_phy_read(dev, 0x0811) |
842 0x000C);
843 b43legacy_phy_write(dev, 0x0812, b43legacy_phy_read(dev, 0x0812) |
844 0x000C);
845
846 b43legacy_phy_write(dev, 0x0811, (b43legacy_phy_read(dev, 0x0811)
847 & 0xFFCF) | 0x0030);
848 b43legacy_phy_write(dev, 0x0812, (b43legacy_phy_read(dev, 0x0812)
849 & 0xFFCF) | 0x0010);
850
851 b43legacy_phy_write(dev, 0x005A, 0x0780);
852 b43legacy_phy_write(dev, 0x0059, 0xC810);
853 b43legacy_phy_write(dev, 0x0058, 0x000D);
854 if (phy->analog == 0)
855 b43legacy_phy_write(dev, 0x0003, 0x0122);
856 else
857 b43legacy_phy_write(dev, 0x000A,
858 b43legacy_phy_read(dev, 0x000A)
859 | 0x2000);
860 if (phy->rev != 1) {
861 b43legacy_phy_write(dev, 0x0814,
862 b43legacy_phy_read(dev, 0x0814) | 0x0004);
863 b43legacy_phy_write(dev, 0x0815,
864 b43legacy_phy_read(dev, 0x0815) & 0xFFFB);
865 }
866 b43legacy_phy_write(dev, 0x0003,
867 (b43legacy_phy_read(dev, 0x0003)
868 & 0xFF9F) | 0x0040);
869 if (phy->radio_ver == 0x2050 && phy->radio_rev == 2) {
870 b43legacy_radio_write16(dev, 0x0052, 0x0000);
871 b43legacy_radio_write16(dev, 0x0043,
872 (b43legacy_radio_read16(dev, 0x0043)
873 & 0xFFF0) | 0x0009);
874 loop1_cnt = 9;
875 } else if (phy->radio_rev == 8) {
876 b43legacy_radio_write16(dev, 0x0043, 0x000F);
877 loop1_cnt = 15;
878 } else
879 loop1_cnt = 0;
880
881 b43legacy_phy_set_baseband_attenuation(dev, 11);
882
883 if (phy->rev >= 3)
884 b43legacy_phy_write(dev, 0x080F, 0xC020);
885 else
886 b43legacy_phy_write(dev, 0x080F, 0x8020);
887 b43legacy_phy_write(dev, 0x0810, 0x0000);
888
889 b43legacy_phy_write(dev, 0x002B,
890 (b43legacy_phy_read(dev, 0x002B)
891 & 0xFFC0) | 0x0001);
892 b43legacy_phy_write(dev, 0x002B,
893 (b43legacy_phy_read(dev, 0x002B)
894 & 0xC0FF) | 0x0800);
895 b43legacy_phy_write(dev, 0x0811,
896 b43legacy_phy_read(dev, 0x0811) | 0x0100);
897 b43legacy_phy_write(dev, 0x0812,
898 b43legacy_phy_read(dev, 0x0812) & 0xCFFF);
899 if (dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_EXTLNA) {
900 if (phy->rev >= 7) {
901 b43legacy_phy_write(dev, 0x0811,
902 b43legacy_phy_read(dev, 0x0811)
903 | 0x0800);
904 b43legacy_phy_write(dev, 0x0812,
905 b43legacy_phy_read(dev, 0x0812)
906 | 0x8000);
907 }
908 }
909 b43legacy_radio_write16(dev, 0x007A,
910 b43legacy_radio_read16(dev, 0x007A)
911 & 0x00F7);
912
913 for (i = 0; i < loop1_cnt; i++) {
914 b43legacy_radio_write16(dev, 0x0043, loop1_cnt);
915 b43legacy_phy_write(dev, 0x0812,
916 (b43legacy_phy_read(dev, 0x0812)
917 & 0xF0FF) | (i << 8));
918 b43legacy_phy_write(dev, 0x0015,
919 (b43legacy_phy_read(dev, 0x0015)
920 & 0x0FFF) | 0xA000);
921 b43legacy_phy_write(dev, 0x0015,
922 (b43legacy_phy_read(dev, 0x0015)
923 & 0x0FFF) | 0xF000);
924 udelay(20);
925 if (b43legacy_phy_read(dev, 0x002D) >= 0x0DFC)
926 break;
927 }
928 loop1_done = i;
929 loop1_omitted = loop1_cnt - loop1_done;
930
931 loop2_done = 0;
932 if (loop1_done >= 8) {
933 b43legacy_phy_write(dev, 0x0812,
934 b43legacy_phy_read(dev, 0x0812)
935 | 0x0030);
936 for (i = loop1_done - 8; i < 16; i++) {
937 b43legacy_phy_write(dev, 0x0812,
938 (b43legacy_phy_read(dev, 0x0812)
939 & 0xF0FF) | (i << 8));
940 b43legacy_phy_write(dev, 0x0015,
941 (b43legacy_phy_read(dev, 0x0015)
942 & 0x0FFF) | 0xA000);
943 b43legacy_phy_write(dev, 0x0015,
944 (b43legacy_phy_read(dev, 0x0015)
945 & 0x0FFF) | 0xF000);
946 udelay(20);
947 if (b43legacy_phy_read(dev, 0x002D) >= 0x0DFC)
948 break;
949 }
950 }
951
952 if (phy->rev != 1) {
953 b43legacy_phy_write(dev, 0x0814, backup_phy[4]);
954 b43legacy_phy_write(dev, 0x0815, backup_phy[5]);
955 }
956 b43legacy_phy_write(dev, 0x005A, backup_phy[6]);
957 b43legacy_phy_write(dev, 0x0059, backup_phy[7]);
958 b43legacy_phy_write(dev, 0x0058, backup_phy[8]);
959 b43legacy_phy_write(dev, 0x000A, backup_phy[9]);
960 b43legacy_phy_write(dev, 0x0003, backup_phy[10]);
961 b43legacy_phy_write(dev, 0x080F, backup_phy[11]);
962 b43legacy_phy_write(dev, 0x0810, backup_phy[12]);
963 b43legacy_phy_write(dev, 0x002B, backup_phy[13]);
964 b43legacy_phy_write(dev, 0x0015, backup_phy[14]);
965
966 b43legacy_phy_set_baseband_attenuation(dev, backup_bband);
967
968 b43legacy_radio_write16(dev, 0x0052, backup_radio[0]);
969 b43legacy_radio_write16(dev, 0x0043, backup_radio[1]);
970 b43legacy_radio_write16(dev, 0x007A, backup_radio[2]);
971
972 b43legacy_phy_write(dev, 0x0811, backup_phy[2] | 0x0003);
973 udelay(10);
974 b43legacy_phy_write(dev, 0x0811, backup_phy[2]);
975 b43legacy_phy_write(dev, 0x0812, backup_phy[3]);
976 b43legacy_phy_write(dev, 0x0429, backup_phy[0]);
977 b43legacy_phy_write(dev, 0x0001, backup_phy[1]);
978
979 phy->loopback_gain[0] = ((loop1_done * 6) - (loop1_omitted * 4)) - 11;
980 phy->loopback_gain[1] = (24 - (3 * loop2_done)) * 2;
981 }
982
b43legacy_phy_initg(struct b43legacy_wldev * dev)983 static void b43legacy_phy_initg(struct b43legacy_wldev *dev)
984 {
985 struct b43legacy_phy *phy = &dev->phy;
986 u16 tmp;
987
988 if (phy->rev == 1)
989 b43legacy_phy_initb5(dev);
990 else
991 b43legacy_phy_initb6(dev);
992 if (phy->rev >= 2 && phy->gmode)
993 b43legacy_phy_inita(dev);
994
995 if (phy->rev >= 2) {
996 b43legacy_phy_write(dev, 0x0814, 0x0000);
997 b43legacy_phy_write(dev, 0x0815, 0x0000);
998 }
999 if (phy->rev == 2) {
1000 b43legacy_phy_write(dev, 0x0811, 0x0000);
1001 b43legacy_phy_write(dev, 0x0015, 0x00C0);
1002 }
1003 if (phy->rev > 5) {
1004 b43legacy_phy_write(dev, 0x0811, 0x0400);
1005 b43legacy_phy_write(dev, 0x0015, 0x00C0);
1006 }
1007 if (phy->gmode) {
1008 tmp = b43legacy_phy_read(dev, 0x0400) & 0xFF;
1009 if (tmp == 3) {
1010 b43legacy_phy_write(dev, 0x04C2, 0x1816);
1011 b43legacy_phy_write(dev, 0x04C3, 0x8606);
1012 }
1013 if (tmp == 4 || tmp == 5) {
1014 b43legacy_phy_write(dev, 0x04C2, 0x1816);
1015 b43legacy_phy_write(dev, 0x04C3, 0x8006);
1016 b43legacy_phy_write(dev, 0x04CC,
1017 (b43legacy_phy_read(dev,
1018 0x04CC) & 0x00FF) |
1019 0x1F00);
1020 }
1021 if (phy->rev >= 2)
1022 b43legacy_phy_write(dev, 0x047E, 0x0078);
1023 }
1024 if (phy->radio_rev == 8) {
1025 b43legacy_phy_write(dev, 0x0801, b43legacy_phy_read(dev, 0x0801)
1026 | 0x0080);
1027 b43legacy_phy_write(dev, 0x043E, b43legacy_phy_read(dev, 0x043E)
1028 | 0x0004);
1029 }
1030 if (phy->rev >= 2 && phy->gmode)
1031 b43legacy_calc_loopback_gain(dev);
1032 if (phy->radio_rev != 8) {
1033 if (phy->initval == 0xFFFF)
1034 phy->initval = b43legacy_radio_init2050(dev);
1035 else
1036 b43legacy_radio_write16(dev, 0x0078, phy->initval);
1037 }
1038 if (phy->txctl2 == 0xFFFF)
1039 b43legacy_phy_lo_g_measure(dev);
1040 else {
1041 if (phy->radio_ver == 0x2050 && phy->radio_rev == 8)
1042 b43legacy_radio_write16(dev, 0x0052,
1043 (phy->txctl1 << 4) |
1044 phy->txctl2);
1045 else
1046 b43legacy_radio_write16(dev, 0x0052,
1047 (b43legacy_radio_read16(dev,
1048 0x0052) & 0xFFF0) |
1049 phy->txctl1);
1050 if (phy->rev >= 6)
1051 b43legacy_phy_write(dev, 0x0036,
1052 (b43legacy_phy_read(dev, 0x0036)
1053 & 0x0FFF) | (phy->txctl2 << 12));
1054 if (dev->dev->bus->sprom.boardflags_lo &
1055 B43legacy_BFL_PACTRL)
1056 b43legacy_phy_write(dev, 0x002E, 0x8075);
1057 else
1058 b43legacy_phy_write(dev, 0x002E, 0x807F);
1059 if (phy->rev < 2)
1060 b43legacy_phy_write(dev, 0x002F, 0x0101);
1061 else
1062 b43legacy_phy_write(dev, 0x002F, 0x0202);
1063 }
1064 if (phy->gmode) {
1065 b43legacy_phy_lo_adjust(dev, 0);
1066 b43legacy_phy_write(dev, 0x080F, 0x8078);
1067 }
1068
1069 if (!(dev->dev->bus->sprom.boardflags_lo & B43legacy_BFL_RSSI)) {
1070 /* The specs state to update the NRSSI LT with
1071 * the value 0x7FFFFFFF here. I think that is some weird
1072 * compiler optimization in the original driver.
1073 * Essentially, what we do here is resetting all NRSSI LT
1074 * entries to -32 (see the clamp_val() in nrssi_hw_update())
1075 */
1076 b43legacy_nrssi_hw_update(dev, 0xFFFF);
1077 b43legacy_calc_nrssi_threshold(dev);
1078 } else if (phy->gmode || phy->rev >= 2) {
1079 if (phy->nrssi[0] == -1000) {
1080 B43legacy_WARN_ON(phy->nrssi[1] != -1000);
1081 b43legacy_calc_nrssi_slope(dev);
1082 } else {
1083 B43legacy_WARN_ON(phy->nrssi[1] == -1000);
1084 b43legacy_calc_nrssi_threshold(dev);
1085 }
1086 }
1087 if (phy->radio_rev == 8)
1088 b43legacy_phy_write(dev, 0x0805, 0x3230);
1089 b43legacy_phy_init_pctl(dev);
1090 if (dev->dev->bus->chip_id == 0x4306
1091 && dev->dev->bus->chip_package == 2) {
1092 b43legacy_phy_write(dev, 0x0429,
1093 b43legacy_phy_read(dev, 0x0429) & 0xBFFF);
1094 b43legacy_phy_write(dev, 0x04C3,
1095 b43legacy_phy_read(dev, 0x04C3) & 0x7FFF);
1096 }
1097 }
1098
b43legacy_phy_lo_b_r15_loop(struct b43legacy_wldev * dev)1099 static u16 b43legacy_phy_lo_b_r15_loop(struct b43legacy_wldev *dev)
1100 {
1101 int i;
1102 u16 ret = 0;
1103 unsigned long flags;
1104
1105 local_irq_save(flags);
1106 for (i = 0; i < 10; i++) {
1107 b43legacy_phy_write(dev, 0x0015, 0xAFA0);
1108 udelay(1);
1109 b43legacy_phy_write(dev, 0x0015, 0xEFA0);
1110 udelay(10);
1111 b43legacy_phy_write(dev, 0x0015, 0xFFA0);
1112 udelay(40);
1113 ret += b43legacy_phy_read(dev, 0x002C);
1114 }
1115 local_irq_restore(flags);
1116 cond_resched();
1117
1118 return ret;
1119 }
1120
b43legacy_phy_lo_b_measure(struct b43legacy_wldev * dev)1121 void b43legacy_phy_lo_b_measure(struct b43legacy_wldev *dev)
1122 {
1123 struct b43legacy_phy *phy = &dev->phy;
1124 u16 regstack[12] = { 0 };
1125 u16 mls;
1126 s16 fval;
1127 int i;
1128 int j;
1129
1130 regstack[0] = b43legacy_phy_read(dev, 0x0015);
1131 regstack[1] = b43legacy_radio_read16(dev, 0x0052) & 0xFFF0;
1132
1133 if (phy->radio_ver == 0x2053) {
1134 regstack[2] = b43legacy_phy_read(dev, 0x000A);
1135 regstack[3] = b43legacy_phy_read(dev, 0x002A);
1136 regstack[4] = b43legacy_phy_read(dev, 0x0035);
1137 regstack[5] = b43legacy_phy_read(dev, 0x0003);
1138 regstack[6] = b43legacy_phy_read(dev, 0x0001);
1139 regstack[7] = b43legacy_phy_read(dev, 0x0030);
1140
1141 regstack[8] = b43legacy_radio_read16(dev, 0x0043);
1142 regstack[9] = b43legacy_radio_read16(dev, 0x007A);
1143 regstack[10] = b43legacy_read16(dev, 0x03EC);
1144 regstack[11] = b43legacy_radio_read16(dev, 0x0052) & 0x00F0;
1145
1146 b43legacy_phy_write(dev, 0x0030, 0x00FF);
1147 b43legacy_write16(dev, 0x03EC, 0x3F3F);
1148 b43legacy_phy_write(dev, 0x0035, regstack[4] & 0xFF7F);
1149 b43legacy_radio_write16(dev, 0x007A, regstack[9] & 0xFFF0);
1150 }
1151 b43legacy_phy_write(dev, 0x0015, 0xB000);
1152 b43legacy_phy_write(dev, 0x002B, 0x0004);
1153
1154 if (phy->radio_ver == 0x2053) {
1155 b43legacy_phy_write(dev, 0x002B, 0x0203);
1156 b43legacy_phy_write(dev, 0x002A, 0x08A3);
1157 }
1158
1159 phy->minlowsig[0] = 0xFFFF;
1160
1161 for (i = 0; i < 4; i++) {
1162 b43legacy_radio_write16(dev, 0x0052, regstack[1] | i);
1163 b43legacy_phy_lo_b_r15_loop(dev);
1164 }
1165 for (i = 0; i < 10; i++) {
1166 b43legacy_radio_write16(dev, 0x0052, regstack[1] | i);
1167 mls = b43legacy_phy_lo_b_r15_loop(dev) / 10;
1168 if (mls < phy->minlowsig[0]) {
1169 phy->minlowsig[0] = mls;
1170 phy->minlowsigpos[0] = i;
1171 }
1172 }
1173 b43legacy_radio_write16(dev, 0x0052, regstack[1]
1174 | phy->minlowsigpos[0]);
1175
1176 phy->minlowsig[1] = 0xFFFF;
1177
1178 for (i = -4; i < 5; i += 2) {
1179 for (j = -4; j < 5; j += 2) {
1180 if (j < 0)
1181 fval = (0x0100 * i) + j + 0x0100;
1182 else
1183 fval = (0x0100 * i) + j;
1184 b43legacy_phy_write(dev, 0x002F, fval);
1185 mls = b43legacy_phy_lo_b_r15_loop(dev) / 10;
1186 if (mls < phy->minlowsig[1]) {
1187 phy->minlowsig[1] = mls;
1188 phy->minlowsigpos[1] = fval;
1189 }
1190 }
1191 }
1192 phy->minlowsigpos[1] += 0x0101;
1193
1194 b43legacy_phy_write(dev, 0x002F, phy->minlowsigpos[1]);
1195 if (phy->radio_ver == 0x2053) {
1196 b43legacy_phy_write(dev, 0x000A, regstack[2]);
1197 b43legacy_phy_write(dev, 0x002A, regstack[3]);
1198 b43legacy_phy_write(dev, 0x0035, regstack[4]);
1199 b43legacy_phy_write(dev, 0x0003, regstack[5]);
1200 b43legacy_phy_write(dev, 0x0001, regstack[6]);
1201 b43legacy_phy_write(dev, 0x0030, regstack[7]);
1202
1203 b43legacy_radio_write16(dev, 0x0043, regstack[8]);
1204 b43legacy_radio_write16(dev, 0x007A, regstack[9]);
1205
1206 b43legacy_radio_write16(dev, 0x0052,
1207 (b43legacy_radio_read16(dev, 0x0052)
1208 & 0x000F) | regstack[11]);
1209
1210 b43legacy_write16(dev, 0x03EC, regstack[10]);
1211 }
1212 b43legacy_phy_write(dev, 0x0015, regstack[0]);
1213 }
1214
1215 static inline
b43legacy_phy_lo_g_deviation_subval(struct b43legacy_wldev * dev,u16 control)1216 u16 b43legacy_phy_lo_g_deviation_subval(struct b43legacy_wldev *dev,
1217 u16 control)
1218 {
1219 struct b43legacy_phy *phy = &dev->phy;
1220 u16 ret;
1221 unsigned long flags;
1222
1223 local_irq_save(flags);
1224 if (phy->gmode) {
1225 b43legacy_phy_write(dev, 0x15, 0xE300);
1226 control <<= 8;
1227 b43legacy_phy_write(dev, 0x0812, control | 0x00B0);
1228 udelay(5);
1229 b43legacy_phy_write(dev, 0x0812, control | 0x00B2);
1230 udelay(2);
1231 b43legacy_phy_write(dev, 0x0812, control | 0x00B3);
1232 udelay(4);
1233 b43legacy_phy_write(dev, 0x0015, 0xF300);
1234 udelay(8);
1235 } else {
1236 b43legacy_phy_write(dev, 0x0015, control | 0xEFA0);
1237 udelay(2);
1238 b43legacy_phy_write(dev, 0x0015, control | 0xEFE0);
1239 udelay(4);
1240 b43legacy_phy_write(dev, 0x0015, control | 0xFFE0);
1241 udelay(8);
1242 }
1243 ret = b43legacy_phy_read(dev, 0x002D);
1244 local_irq_restore(flags);
1245 cond_resched();
1246
1247 return ret;
1248 }
1249
b43legacy_phy_lo_g_singledeviation(struct b43legacy_wldev * dev,u16 control)1250 static u32 b43legacy_phy_lo_g_singledeviation(struct b43legacy_wldev *dev,
1251 u16 control)
1252 {
1253 int i;
1254 u32 ret = 0;
1255
1256 for (i = 0; i < 8; i++)
1257 ret += b43legacy_phy_lo_g_deviation_subval(dev, control);
1258
1259 return ret;
1260 }
1261
1262 /* Write the LocalOscillator CONTROL */
1263 static inline
b43legacy_lo_write(struct b43legacy_wldev * dev,struct b43legacy_lopair * pair)1264 void b43legacy_lo_write(struct b43legacy_wldev *dev,
1265 struct b43legacy_lopair *pair)
1266 {
1267 u16 value;
1268
1269 value = (u8)(pair->low);
1270 value |= ((u8)(pair->high)) << 8;
1271
1272 #ifdef CONFIG_B43LEGACY_DEBUG
1273 /* Sanity check. */
1274 if (pair->low < -8 || pair->low > 8 ||
1275 pair->high < -8 || pair->high > 8) {
1276 b43legacydbg(dev->wl,
1277 "WARNING: Writing invalid LOpair "
1278 "(low: %d, high: %d)\n",
1279 pair->low, pair->high);
1280 dump_stack();
1281 }
1282 #endif
1283
1284 b43legacy_phy_write(dev, B43legacy_PHY_G_LO_CONTROL, value);
1285 }
1286
1287 static inline
b43legacy_find_lopair(struct b43legacy_wldev * dev,u16 bbatt,u16 rfatt,u16 tx)1288 struct b43legacy_lopair *b43legacy_find_lopair(struct b43legacy_wldev *dev,
1289 u16 bbatt,
1290 u16 rfatt,
1291 u16 tx)
1292 {
1293 static const u8 dict[10] = { 11, 10, 11, 12, 13, 12, 13, 12, 13, 12 };
1294 struct b43legacy_phy *phy = &dev->phy;
1295
1296 if (bbatt > 6)
1297 bbatt = 6;
1298 B43legacy_WARN_ON(rfatt >= 10);
1299
1300 if (tx == 3)
1301 return b43legacy_get_lopair(phy, rfatt, bbatt);
1302 return b43legacy_get_lopair(phy, dict[rfatt], bbatt);
1303 }
1304
1305 static inline
b43legacy_current_lopair(struct b43legacy_wldev * dev)1306 struct b43legacy_lopair *b43legacy_current_lopair(struct b43legacy_wldev *dev)
1307 {
1308 struct b43legacy_phy *phy = &dev->phy;
1309
1310 return b43legacy_find_lopair(dev, phy->bbatt,
1311 phy->rfatt, phy->txctl1);
1312 }
1313
1314 /* Adjust B/G LO */
b43legacy_phy_lo_adjust(struct b43legacy_wldev * dev,int fixed)1315 void b43legacy_phy_lo_adjust(struct b43legacy_wldev *dev, int fixed)
1316 {
1317 struct b43legacy_lopair *pair;
1318
1319 if (fixed) {
1320 /* Use fixed values. Only for initialization. */
1321 pair = b43legacy_find_lopair(dev, 2, 3, 0);
1322 } else
1323 pair = b43legacy_current_lopair(dev);
1324 b43legacy_lo_write(dev, pair);
1325 }
1326
b43legacy_phy_lo_g_measure_txctl2(struct b43legacy_wldev * dev)1327 static void b43legacy_phy_lo_g_measure_txctl2(struct b43legacy_wldev *dev)
1328 {
1329 struct b43legacy_phy *phy = &dev->phy;
1330 u16 txctl2 = 0;
1331 u16 i;
1332 u32 smallest;
1333 u32 tmp;
1334
1335 b43legacy_radio_write16(dev, 0x0052, 0x0000);
1336 udelay(10);
1337 smallest = b43legacy_phy_lo_g_singledeviation(dev, 0);
1338 for (i = 0; i < 16; i++) {
1339 b43legacy_radio_write16(dev, 0x0052, i);
1340 udelay(10);
1341 tmp = b43legacy_phy_lo_g_singledeviation(dev, 0);
1342 if (tmp < smallest) {
1343 smallest = tmp;
1344 txctl2 = i;
1345 }
1346 }
1347 phy->txctl2 = txctl2;
1348 }
1349
1350 static
b43legacy_phy_lo_g_state(struct b43legacy_wldev * dev,const struct b43legacy_lopair * in_pair,struct b43legacy_lopair * out_pair,u16 r27)1351 void b43legacy_phy_lo_g_state(struct b43legacy_wldev *dev,
1352 const struct b43legacy_lopair *in_pair,
1353 struct b43legacy_lopair *out_pair,
1354 u16 r27)
1355 {
1356 static const struct b43legacy_lopair transitions[8] = {
1357 { .high = 1, .low = 1, },
1358 { .high = 1, .low = 0, },
1359 { .high = 1, .low = -1, },
1360 { .high = 0, .low = -1, },
1361 { .high = -1, .low = -1, },
1362 { .high = -1, .low = 0, },
1363 { .high = -1, .low = 1, },
1364 { .high = 0, .low = 1, },
1365 };
1366 struct b43legacy_lopair lowest_transition = {
1367 .high = in_pair->high,
1368 .low = in_pair->low,
1369 };
1370 struct b43legacy_lopair tmp_pair;
1371 struct b43legacy_lopair transition;
1372 int i = 12;
1373 int state = 0;
1374 int found_lower;
1375 int j;
1376 int begin;
1377 int end;
1378 u32 lowest_deviation;
1379 u32 tmp;
1380
1381 /* Note that in_pair and out_pair can point to the same pair.
1382 * Be careful. */
1383
1384 b43legacy_lo_write(dev, &lowest_transition);
1385 lowest_deviation = b43legacy_phy_lo_g_singledeviation(dev, r27);
1386 do {
1387 found_lower = 0;
1388 B43legacy_WARN_ON(!(state >= 0 && state <= 8));
1389 if (state == 0) {
1390 begin = 1;
1391 end = 8;
1392 } else if (state % 2 == 0) {
1393 begin = state - 1;
1394 end = state + 1;
1395 } else {
1396 begin = state - 2;
1397 end = state + 2;
1398 }
1399 if (begin < 1)
1400 begin += 8;
1401 if (end > 8)
1402 end -= 8;
1403
1404 j = begin;
1405 tmp_pair.high = lowest_transition.high;
1406 tmp_pair.low = lowest_transition.low;
1407 while (1) {
1408 B43legacy_WARN_ON(!(j >= 1 && j <= 8));
1409 transition.high = tmp_pair.high +
1410 transitions[j - 1].high;
1411 transition.low = tmp_pair.low + transitions[j - 1].low;
1412 if ((abs(transition.low) < 9)
1413 && (abs(transition.high) < 9)) {
1414 b43legacy_lo_write(dev, &transition);
1415 tmp = b43legacy_phy_lo_g_singledeviation(dev,
1416 r27);
1417 if (tmp < lowest_deviation) {
1418 lowest_deviation = tmp;
1419 state = j;
1420 found_lower = 1;
1421
1422 lowest_transition.high =
1423 transition.high;
1424 lowest_transition.low = transition.low;
1425 }
1426 }
1427 if (j == end)
1428 break;
1429 if (j == 8)
1430 j = 1;
1431 else
1432 j++;
1433 }
1434 } while (i-- && found_lower);
1435
1436 out_pair->high = lowest_transition.high;
1437 out_pair->low = lowest_transition.low;
1438 }
1439
1440 /* Set the baseband attenuation value on chip. */
b43legacy_phy_set_baseband_attenuation(struct b43legacy_wldev * dev,u16 bbatt)1441 void b43legacy_phy_set_baseband_attenuation(struct b43legacy_wldev *dev,
1442 u16 bbatt)
1443 {
1444 struct b43legacy_phy *phy = &dev->phy;
1445 u16 value;
1446
1447 if (phy->analog == 0) {
1448 value = (b43legacy_read16(dev, 0x03E6) & 0xFFF0);
1449 value |= (bbatt & 0x000F);
1450 b43legacy_write16(dev, 0x03E6, value);
1451 return;
1452 }
1453
1454 if (phy->analog > 1) {
1455 value = b43legacy_phy_read(dev, 0x0060) & 0xFFC3;
1456 value |= (bbatt << 2) & 0x003C;
1457 } else {
1458 value = b43legacy_phy_read(dev, 0x0060) & 0xFF87;
1459 value |= (bbatt << 3) & 0x0078;
1460 }
1461 b43legacy_phy_write(dev, 0x0060, value);
1462 }
1463
1464 /* https://bcm-specs.sipsolutions.net/LocalOscillator/Measure */
b43legacy_phy_lo_g_measure(struct b43legacy_wldev * dev)1465 void b43legacy_phy_lo_g_measure(struct b43legacy_wldev *dev)
1466 {
1467 static const u8 pairorder[10] = { 3, 1, 5, 7, 9, 2, 0, 4, 6, 8 };
1468 const int is_initializing = (b43legacy_status(dev)
1469 < B43legacy_STAT_STARTED);
1470 struct b43legacy_phy *phy = &dev->phy;
1471 u16 h;
1472 u16 i;
1473 u16 oldi = 0;
1474 u16 j;
1475 struct b43legacy_lopair control;
1476 struct b43legacy_lopair *tmp_control;
1477 u16 tmp;
1478 u16 regstack[16] = { 0 };
1479 u8 oldchannel;
1480
1481 /* XXX: What are these? */
1482 u8 r27 = 0;
1483 u16 r31;
1484
1485 oldchannel = phy->channel;
1486 /* Setup */
1487 if (phy->gmode) {
1488 regstack[0] = b43legacy_phy_read(dev, B43legacy_PHY_G_CRS);
1489 regstack[1] = b43legacy_phy_read(dev, 0x0802);
1490 b43legacy_phy_write(dev, B43legacy_PHY_G_CRS, regstack[0]
1491 & 0x7FFF);
1492 b43legacy_phy_write(dev, 0x0802, regstack[1] & 0xFFFC);
1493 }
1494 regstack[3] = b43legacy_read16(dev, 0x03E2);
1495 b43legacy_write16(dev, 0x03E2, regstack[3] | 0x8000);
1496 regstack[4] = b43legacy_read16(dev, B43legacy_MMIO_CHANNEL_EXT);
1497 regstack[5] = b43legacy_phy_read(dev, 0x15);
1498 regstack[6] = b43legacy_phy_read(dev, 0x2A);
1499 regstack[7] = b43legacy_phy_read(dev, 0x35);
1500 regstack[8] = b43legacy_phy_read(dev, 0x60);
1501 regstack[9] = b43legacy_radio_read16(dev, 0x43);
1502 regstack[10] = b43legacy_radio_read16(dev, 0x7A);
1503 regstack[11] = b43legacy_radio_read16(dev, 0x52);
1504 if (phy->gmode) {
1505 regstack[12] = b43legacy_phy_read(dev, 0x0811);
1506 regstack[13] = b43legacy_phy_read(dev, 0x0812);
1507 regstack[14] = b43legacy_phy_read(dev, 0x0814);
1508 regstack[15] = b43legacy_phy_read(dev, 0x0815);
1509 }
1510 b43legacy_radio_selectchannel(dev, 6, 0);
1511 if (phy->gmode) {
1512 b43legacy_phy_write(dev, B43legacy_PHY_G_CRS, regstack[0]
1513 & 0x7FFF);
1514 b43legacy_phy_write(dev, 0x0802, regstack[1] & 0xFFFC);
1515 b43legacy_dummy_transmission(dev);
1516 }
1517 b43legacy_radio_write16(dev, 0x0043, 0x0006);
1518
1519 b43legacy_phy_set_baseband_attenuation(dev, 2);
1520
1521 b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, 0x0000);
1522 b43legacy_phy_write(dev, 0x002E, 0x007F);
1523 b43legacy_phy_write(dev, 0x080F, 0x0078);
1524 b43legacy_phy_write(dev, 0x0035, regstack[7] & ~(1 << 7));
1525 b43legacy_radio_write16(dev, 0x007A, regstack[10] & 0xFFF0);
1526 b43legacy_phy_write(dev, 0x002B, 0x0203);
1527 b43legacy_phy_write(dev, 0x002A, 0x08A3);
1528 if (phy->gmode) {
1529 b43legacy_phy_write(dev, 0x0814, regstack[14] | 0x0003);
1530 b43legacy_phy_write(dev, 0x0815, regstack[15] & 0xFFFC);
1531 b43legacy_phy_write(dev, 0x0811, 0x01B3);
1532 b43legacy_phy_write(dev, 0x0812, 0x00B2);
1533 }
1534 if (is_initializing)
1535 b43legacy_phy_lo_g_measure_txctl2(dev);
1536 b43legacy_phy_write(dev, 0x080F, 0x8078);
1537
1538 /* Measure */
1539 control.low = 0;
1540 control.high = 0;
1541 for (h = 0; h < 10; h++) {
1542 /* Loop over each possible RadioAttenuation (0-9) */
1543 i = pairorder[h];
1544 if (is_initializing) {
1545 if (i == 3) {
1546 control.low = 0;
1547 control.high = 0;
1548 } else if (((i % 2 == 1) && (oldi % 2 == 1)) ||
1549 ((i % 2 == 0) && (oldi % 2 == 0))) {
1550 tmp_control = b43legacy_get_lopair(phy, oldi,
1551 0);
1552 memcpy(&control, tmp_control, sizeof(control));
1553 } else {
1554 tmp_control = b43legacy_get_lopair(phy, 3, 0);
1555 memcpy(&control, tmp_control, sizeof(control));
1556 }
1557 }
1558 /* Loop over each possible BasebandAttenuation/2 */
1559 for (j = 0; j < 4; j++) {
1560 if (is_initializing) {
1561 tmp = i * 2 + j;
1562 r27 = 0;
1563 r31 = 0;
1564 if (tmp > 14) {
1565 r31 = 1;
1566 if (tmp > 17)
1567 r27 = 1;
1568 if (tmp > 19)
1569 r27 = 2;
1570 }
1571 } else {
1572 tmp_control = b43legacy_get_lopair(phy, i,
1573 j * 2);
1574 if (!tmp_control->used)
1575 continue;
1576 memcpy(&control, tmp_control, sizeof(control));
1577 r27 = 3;
1578 r31 = 0;
1579 }
1580 b43legacy_radio_write16(dev, 0x43, i);
1581 b43legacy_radio_write16(dev, 0x52, phy->txctl2);
1582 udelay(10);
1583 cond_resched();
1584
1585 b43legacy_phy_set_baseband_attenuation(dev, j * 2);
1586
1587 tmp = (regstack[10] & 0xFFF0);
1588 if (r31)
1589 tmp |= 0x0008;
1590 b43legacy_radio_write16(dev, 0x007A, tmp);
1591
1592 tmp_control = b43legacy_get_lopair(phy, i, j * 2);
1593 b43legacy_phy_lo_g_state(dev, &control, tmp_control,
1594 r27);
1595 }
1596 oldi = i;
1597 }
1598 /* Loop over each possible RadioAttenuation (10-13) */
1599 for (i = 10; i < 14; i++) {
1600 /* Loop over each possible BasebandAttenuation/2 */
1601 for (j = 0; j < 4; j++) {
1602 if (is_initializing) {
1603 tmp_control = b43legacy_get_lopair(phy, i - 9,
1604 j * 2);
1605 memcpy(&control, tmp_control, sizeof(control));
1606 /* FIXME: The next line is wrong, as the
1607 * following if statement can never trigger. */
1608 tmp = (i - 9) * 2 + j - 5;
1609 r27 = 0;
1610 r31 = 0;
1611 if (tmp > 14) {
1612 r31 = 1;
1613 if (tmp > 17)
1614 r27 = 1;
1615 if (tmp > 19)
1616 r27 = 2;
1617 }
1618 } else {
1619 tmp_control = b43legacy_get_lopair(phy, i - 9,
1620 j * 2);
1621 if (!tmp_control->used)
1622 continue;
1623 memcpy(&control, tmp_control, sizeof(control));
1624 r27 = 3;
1625 r31 = 0;
1626 }
1627 b43legacy_radio_write16(dev, 0x43, i - 9);
1628 /* FIXME: shouldn't txctl1 be zero in the next line
1629 * and 3 in the loop above? */
1630 b43legacy_radio_write16(dev, 0x52,
1631 phy->txctl2
1632 | (3/*txctl1*/ << 4));
1633 udelay(10);
1634 cond_resched();
1635
1636 b43legacy_phy_set_baseband_attenuation(dev, j * 2);
1637
1638 tmp = (regstack[10] & 0xFFF0);
1639 if (r31)
1640 tmp |= 0x0008;
1641 b43legacy_radio_write16(dev, 0x7A, tmp);
1642
1643 tmp_control = b43legacy_get_lopair(phy, i, j * 2);
1644 b43legacy_phy_lo_g_state(dev, &control, tmp_control,
1645 r27);
1646 }
1647 }
1648
1649 /* Restoration */
1650 if (phy->gmode) {
1651 b43legacy_phy_write(dev, 0x0015, 0xE300);
1652 b43legacy_phy_write(dev, 0x0812, (r27 << 8) | 0xA0);
1653 udelay(5);
1654 b43legacy_phy_write(dev, 0x0812, (r27 << 8) | 0xA2);
1655 udelay(2);
1656 b43legacy_phy_write(dev, 0x0812, (r27 << 8) | 0xA3);
1657 cond_resched();
1658 } else
1659 b43legacy_phy_write(dev, 0x0015, r27 | 0xEFA0);
1660 b43legacy_phy_lo_adjust(dev, is_initializing);
1661 b43legacy_phy_write(dev, 0x002E, 0x807F);
1662 if (phy->gmode)
1663 b43legacy_phy_write(dev, 0x002F, 0x0202);
1664 else
1665 b43legacy_phy_write(dev, 0x002F, 0x0101);
1666 b43legacy_write16(dev, B43legacy_MMIO_CHANNEL_EXT, regstack[4]);
1667 b43legacy_phy_write(dev, 0x0015, regstack[5]);
1668 b43legacy_phy_write(dev, 0x002A, regstack[6]);
1669 b43legacy_phy_write(dev, 0x0035, regstack[7]);
1670 b43legacy_phy_write(dev, 0x0060, regstack[8]);
1671 b43legacy_radio_write16(dev, 0x0043, regstack[9]);
1672 b43legacy_radio_write16(dev, 0x007A, regstack[10]);
1673 regstack[11] &= 0x00F0;
1674 regstack[11] |= (b43legacy_radio_read16(dev, 0x52) & 0x000F);
1675 b43legacy_radio_write16(dev, 0x52, regstack[11]);
1676 b43legacy_write16(dev, 0x03E2, regstack[3]);
1677 if (phy->gmode) {
1678 b43legacy_phy_write(dev, 0x0811, regstack[12]);
1679 b43legacy_phy_write(dev, 0x0812, regstack[13]);
1680 b43legacy_phy_write(dev, 0x0814, regstack[14]);
1681 b43legacy_phy_write(dev, 0x0815, regstack[15]);
1682 b43legacy_phy_write(dev, B43legacy_PHY_G_CRS, regstack[0]);
1683 b43legacy_phy_write(dev, 0x0802, regstack[1]);
1684 }
1685 b43legacy_radio_selectchannel(dev, oldchannel, 1);
1686
1687 #ifdef CONFIG_B43LEGACY_DEBUG
1688 {
1689 /* Sanity check for all lopairs. */
1690 for (i = 0; i < B43legacy_LO_COUNT; i++) {
1691 tmp_control = phy->_lo_pairs + i;
1692 if (tmp_control->low < -8 || tmp_control->low > 8 ||
1693 tmp_control->high < -8 || tmp_control->high > 8)
1694 b43legacywarn(dev->wl,
1695 "WARNING: Invalid LOpair (low: %d, high:"
1696 " %d, index: %d)\n",
1697 tmp_control->low, tmp_control->high, i);
1698 }
1699 }
1700 #endif /* CONFIG_B43LEGACY_DEBUG */
1701 }
1702
1703 static
b43legacy_phy_lo_mark_current_used(struct b43legacy_wldev * dev)1704 void b43legacy_phy_lo_mark_current_used(struct b43legacy_wldev *dev)
1705 {
1706 struct b43legacy_lopair *pair;
1707
1708 pair = b43legacy_current_lopair(dev);
1709 pair->used = 1;
1710 }
1711
b43legacy_phy_lo_mark_all_unused(struct b43legacy_wldev * dev)1712 void b43legacy_phy_lo_mark_all_unused(struct b43legacy_wldev *dev)
1713 {
1714 struct b43legacy_phy *phy = &dev->phy;
1715 struct b43legacy_lopair *pair;
1716 int i;
1717
1718 for (i = 0; i < B43legacy_LO_COUNT; i++) {
1719 pair = phy->_lo_pairs + i;
1720 pair->used = 0;
1721 }
1722 }
1723
1724 /* https://bcm-specs.sipsolutions.net/EstimatePowerOut
1725 * This function converts a TSSI value to dBm in Q5.2
1726 */
b43legacy_phy_estimate_power_out(struct b43legacy_wldev * dev,s8 tssi)1727 static s8 b43legacy_phy_estimate_power_out(struct b43legacy_wldev *dev, s8 tssi)
1728 {
1729 struct b43legacy_phy *phy = &dev->phy;
1730 s8 dbm = 0;
1731 s32 tmp;
1732
1733 tmp = phy->idle_tssi;
1734 tmp += tssi;
1735 tmp -= phy->savedpctlreg;
1736
1737 switch (phy->type) {
1738 case B43legacy_PHYTYPE_B:
1739 case B43legacy_PHYTYPE_G:
1740 tmp = clamp_val(tmp, 0x00, 0x3F);
1741 dbm = phy->tssi2dbm[tmp];
1742 break;
1743 default:
1744 B43legacy_BUG_ON(1);
1745 }
1746
1747 return dbm;
1748 }
1749
1750 /* https://bcm-specs.sipsolutions.net/RecalculateTransmissionPower */
b43legacy_phy_xmitpower(struct b43legacy_wldev * dev)1751 void b43legacy_phy_xmitpower(struct b43legacy_wldev *dev)
1752 {
1753 struct b43legacy_phy *phy = &dev->phy;
1754 u16 tmp;
1755 u16 txpower;
1756 s8 v0;
1757 s8 v1;
1758 s8 v2;
1759 s8 v3;
1760 s8 average;
1761 int max_pwr;
1762 s16 desired_pwr;
1763 s16 estimated_pwr;
1764 s16 pwr_adjust;
1765 s16 radio_att_delta;
1766 s16 baseband_att_delta;
1767 s16 radio_attenuation;
1768 s16 baseband_attenuation;
1769
1770 if (phy->savedpctlreg == 0xFFFF)
1771 return;
1772 if ((dev->dev->bus->boardinfo.type == 0x0416) &&
1773 is_bcm_board_vendor(dev))
1774 return;
1775 #ifdef CONFIG_B43LEGACY_DEBUG
1776 if (phy->manual_txpower_control)
1777 return;
1778 #endif
1779
1780 B43legacy_BUG_ON(!(phy->type == B43legacy_PHYTYPE_B ||
1781 phy->type == B43legacy_PHYTYPE_G));
1782 tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x0058);
1783 v0 = (s8)(tmp & 0x00FF);
1784 v1 = (s8)((tmp & 0xFF00) >> 8);
1785 tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x005A);
1786 v2 = (s8)(tmp & 0x00FF);
1787 v3 = (s8)((tmp & 0xFF00) >> 8);
1788 tmp = 0;
1789
1790 if (v0 == 0x7F || v1 == 0x7F || v2 == 0x7F || v3 == 0x7F) {
1791 tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
1792 0x0070);
1793 v0 = (s8)(tmp & 0x00FF);
1794 v1 = (s8)((tmp & 0xFF00) >> 8);
1795 tmp = b43legacy_shm_read16(dev, B43legacy_SHM_SHARED,
1796 0x0072);
1797 v2 = (s8)(tmp & 0x00FF);
1798 v3 = (s8)((tmp & 0xFF00) >> 8);
1799 if (v0 == 0x7F || v1 == 0x7F || v2 == 0x7F || v3 == 0x7F)
1800 return;
1801 v0 = (v0 + 0x20) & 0x3F;
1802 v1 = (v1 + 0x20) & 0x3F;
1803 v2 = (v2 + 0x20) & 0x3F;
1804 v3 = (v3 + 0x20) & 0x3F;
1805 tmp = 1;
1806 }
1807 b43legacy_radio_clear_tssi(dev);
1808
1809 average = (v0 + v1 + v2 + v3 + 2) / 4;
1810
1811 if (tmp && (b43legacy_shm_read16(dev, B43legacy_SHM_SHARED, 0x005E)
1812 & 0x8))
1813 average -= 13;
1814
1815 estimated_pwr = b43legacy_phy_estimate_power_out(dev, average);
1816
1817 max_pwr = dev->dev->bus->sprom.maxpwr_bg;
1818
1819 if ((dev->dev->bus->sprom.boardflags_lo
1820 & B43legacy_BFL_PACTRL) &&
1821 (phy->type == B43legacy_PHYTYPE_G))
1822 max_pwr -= 0x3;
1823 if (unlikely(max_pwr <= 0)) {
1824 b43legacywarn(dev->wl, "Invalid max-TX-power value in SPROM."
1825 "\n");
1826 max_pwr = 74; /* fake it */
1827 dev->dev->bus->sprom.maxpwr_bg = max_pwr;
1828 }
1829
1830 /* Use regulatory information to get the maximum power.
1831 * In the absence of such data from mac80211, we will use 20 dBm, which
1832 * is the value for the EU, US, Canada, and most of the world.
1833 * The regulatory maximum is reduced by the antenna gain (from sprom)
1834 * and 1.5 dBm (a safety factor??). The result is in Q5.2 format
1835 * which accounts for the factor of 4 */
1836 #define REG_MAX_PWR 20
1837 max_pwr = min(REG_MAX_PWR * 4
1838 - dev->dev->bus->sprom.antenna_gain.a0
1839 - 0x6, max_pwr);
1840
1841 /* find the desired power in Q5.2 - power_level is in dBm
1842 * and limit it - max_pwr is already in Q5.2 */
1843 desired_pwr = clamp_val(phy->power_level << 2, 0, max_pwr);
1844 if (b43legacy_debug(dev, B43legacy_DBG_XMITPOWER))
1845 b43legacydbg(dev->wl, "Current TX power output: " Q52_FMT
1846 " dBm, Desired TX power output: " Q52_FMT
1847 " dBm\n", Q52_ARG(estimated_pwr),
1848 Q52_ARG(desired_pwr));
1849 /* Check if we need to adjust the current power. The factor of 2 is
1850 * for damping */
1851 pwr_adjust = (desired_pwr - estimated_pwr) / 2;
1852 /* RF attenuation delta
1853 * The minus sign is because lower attenuation => more power */
1854 radio_att_delta = -(pwr_adjust + 7) >> 3;
1855 /* Baseband attenuation delta */
1856 baseband_att_delta = -(pwr_adjust >> 1) - (4 * radio_att_delta);
1857 /* Do we need to adjust anything? */
1858 if ((radio_att_delta == 0) && (baseband_att_delta == 0)) {
1859 b43legacy_phy_lo_mark_current_used(dev);
1860 return;
1861 }
1862
1863 /* Calculate the new attenuation values. */
1864 baseband_attenuation = phy->bbatt;
1865 baseband_attenuation += baseband_att_delta;
1866 radio_attenuation = phy->rfatt;
1867 radio_attenuation += radio_att_delta;
1868
1869 /* Get baseband and radio attenuation values into permitted ranges.
1870 * baseband 0-11, radio 0-9.
1871 * Radio attenuation affects power level 4 times as much as baseband.
1872 */
1873 if (radio_attenuation < 0) {
1874 baseband_attenuation -= (4 * -radio_attenuation);
1875 radio_attenuation = 0;
1876 } else if (radio_attenuation > 9) {
1877 baseband_attenuation += (4 * (radio_attenuation - 9));
1878 radio_attenuation = 9;
1879 } else {
1880 while (baseband_attenuation < 0 && radio_attenuation > 0) {
1881 baseband_attenuation += 4;
1882 radio_attenuation--;
1883 }
1884 while (baseband_attenuation > 11 && radio_attenuation < 9) {
1885 baseband_attenuation -= 4;
1886 radio_attenuation++;
1887 }
1888 }
1889 baseband_attenuation = clamp_val(baseband_attenuation, 0, 11);
1890
1891 txpower = phy->txctl1;
1892 if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 2)) {
1893 if (radio_attenuation <= 1) {
1894 if (txpower == 0) {
1895 txpower = 3;
1896 radio_attenuation += 2;
1897 baseband_attenuation += 2;
1898 } else if (dev->dev->bus->sprom.boardflags_lo
1899 & B43legacy_BFL_PACTRL) {
1900 baseband_attenuation += 4 *
1901 (radio_attenuation - 2);
1902 radio_attenuation = 2;
1903 }
1904 } else if (radio_attenuation > 4 && txpower != 0) {
1905 txpower = 0;
1906 if (baseband_attenuation < 3) {
1907 radio_attenuation -= 3;
1908 baseband_attenuation += 2;
1909 } else {
1910 radio_attenuation -= 2;
1911 baseband_attenuation -= 2;
1912 }
1913 }
1914 }
1915 /* Save the control values */
1916 phy->txctl1 = txpower;
1917 baseband_attenuation = clamp_val(baseband_attenuation, 0, 11);
1918 radio_attenuation = clamp_val(radio_attenuation, 0, 9);
1919 phy->rfatt = radio_attenuation;
1920 phy->bbatt = baseband_attenuation;
1921
1922 /* Adjust the hardware */
1923 b43legacy_phy_lock(dev);
1924 b43legacy_radio_lock(dev);
1925 b43legacy_radio_set_txpower_bg(dev, baseband_attenuation,
1926 radio_attenuation, txpower);
1927 b43legacy_phy_lo_mark_current_used(dev);
1928 b43legacy_radio_unlock(dev);
1929 b43legacy_phy_unlock(dev);
1930 }
1931
1932 static inline
b43legacy_tssi2dbm_ad(s32 num,s32 den)1933 s32 b43legacy_tssi2dbm_ad(s32 num, s32 den)
1934 {
1935 if (num < 0)
1936 return num/den;
1937 else
1938 return (num+den/2)/den;
1939 }
1940
1941 static inline
b43legacy_tssi2dbm_entry(s8 entry[],u8 index,s16 pab0,s16 pab1,s16 pab2)1942 s8 b43legacy_tssi2dbm_entry(s8 entry [], u8 index, s16 pab0, s16 pab1, s16 pab2)
1943 {
1944 s32 m1;
1945 s32 m2;
1946 s32 f = 256;
1947 s32 q;
1948 s32 delta;
1949 s8 i = 0;
1950
1951 m1 = b43legacy_tssi2dbm_ad(16 * pab0 + index * pab1, 32);
1952 m2 = max(b43legacy_tssi2dbm_ad(32768 + index * pab2, 256), 1);
1953 do {
1954 if (i > 15)
1955 return -EINVAL;
1956 q = b43legacy_tssi2dbm_ad(f * 4096 -
1957 b43legacy_tssi2dbm_ad(m2 * f, 16) *
1958 f, 2048);
1959 delta = abs(q - f);
1960 f = q;
1961 i++;
1962 } while (delta >= 2);
1963 entry[index] = clamp_val(b43legacy_tssi2dbm_ad(m1 * f, 8192),
1964 -127, 128);
1965 return 0;
1966 }
1967
1968 /* http://bcm-specs.sipsolutions.net/TSSI_to_DBM_Table */
b43legacy_phy_init_tssi2dbm_table(struct b43legacy_wldev * dev)1969 int b43legacy_phy_init_tssi2dbm_table(struct b43legacy_wldev *dev)
1970 {
1971 struct b43legacy_phy *phy = &dev->phy;
1972 s16 pab0;
1973 s16 pab1;
1974 s16 pab2;
1975 u8 idx;
1976 s8 *dyn_tssi2dbm;
1977
1978 B43legacy_WARN_ON(!(phy->type == B43legacy_PHYTYPE_B ||
1979 phy->type == B43legacy_PHYTYPE_G));
1980 pab0 = (s16)(dev->dev->bus->sprom.pa0b0);
1981 pab1 = (s16)(dev->dev->bus->sprom.pa0b1);
1982 pab2 = (s16)(dev->dev->bus->sprom.pa0b2);
1983
1984 if ((dev->dev->bus->chip_id == 0x4301) && (phy->radio_ver != 0x2050)) {
1985 phy->idle_tssi = 0x34;
1986 phy->tssi2dbm = b43legacy_tssi2dbm_b_table;
1987 return 0;
1988 }
1989
1990 if (pab0 != 0 && pab1 != 0 && pab2 != 0 &&
1991 pab0 != -1 && pab1 != -1 && pab2 != -1) {
1992 /* The pabX values are set in SPROM. Use them. */
1993 if ((s8)dev->dev->bus->sprom.itssi_bg != 0 &&
1994 (s8)dev->dev->bus->sprom.itssi_bg != -1)
1995 phy->idle_tssi = (s8)(dev->dev->bus->sprom.
1996 itssi_bg);
1997 else
1998 phy->idle_tssi = 62;
1999 dyn_tssi2dbm = kmalloc(64, GFP_KERNEL);
2000 if (dyn_tssi2dbm == NULL) {
2001 b43legacyerr(dev->wl, "Could not allocate memory "
2002 "for tssi2dbm table\n");
2003 return -ENOMEM;
2004 }
2005 for (idx = 0; idx < 64; idx++)
2006 if (b43legacy_tssi2dbm_entry(dyn_tssi2dbm, idx, pab0,
2007 pab1, pab2)) {
2008 phy->tssi2dbm = NULL;
2009 b43legacyerr(dev->wl, "Could not generate "
2010 "tssi2dBm table\n");
2011 kfree(dyn_tssi2dbm);
2012 return -ENODEV;
2013 }
2014 phy->tssi2dbm = dyn_tssi2dbm;
2015 phy->dyn_tssi_tbl = 1;
2016 } else {
2017 /* pabX values not set in SPROM. */
2018 switch (phy->type) {
2019 case B43legacy_PHYTYPE_B:
2020 phy->idle_tssi = 0x34;
2021 phy->tssi2dbm = b43legacy_tssi2dbm_b_table;
2022 break;
2023 case B43legacy_PHYTYPE_G:
2024 phy->idle_tssi = 0x34;
2025 phy->tssi2dbm = b43legacy_tssi2dbm_g_table;
2026 break;
2027 }
2028 }
2029
2030 return 0;
2031 }
2032
b43legacy_phy_init(struct b43legacy_wldev * dev)2033 int b43legacy_phy_init(struct b43legacy_wldev *dev)
2034 {
2035 struct b43legacy_phy *phy = &dev->phy;
2036 int err = -ENODEV;
2037
2038 switch (phy->type) {
2039 case B43legacy_PHYTYPE_B:
2040 switch (phy->rev) {
2041 case 2:
2042 b43legacy_phy_initb2(dev);
2043 err = 0;
2044 break;
2045 case 4:
2046 b43legacy_phy_initb4(dev);
2047 err = 0;
2048 break;
2049 case 5:
2050 b43legacy_phy_initb5(dev);
2051 err = 0;
2052 break;
2053 case 6:
2054 b43legacy_phy_initb6(dev);
2055 err = 0;
2056 break;
2057 }
2058 break;
2059 case B43legacy_PHYTYPE_G:
2060 b43legacy_phy_initg(dev);
2061 err = 0;
2062 break;
2063 }
2064 if (err)
2065 b43legacyerr(dev->wl, "Unknown PHYTYPE found\n");
2066
2067 return err;
2068 }
2069
b43legacy_phy_set_antenna_diversity(struct b43legacy_wldev * dev)2070 void b43legacy_phy_set_antenna_diversity(struct b43legacy_wldev *dev)
2071 {
2072 struct b43legacy_phy *phy = &dev->phy;
2073 u16 antennadiv;
2074 u16 offset;
2075 u16 value;
2076 u32 ucodeflags;
2077
2078 antennadiv = phy->antenna_diversity;
2079
2080 if (antennadiv == 0xFFFF)
2081 antennadiv = 3;
2082 B43legacy_WARN_ON(antennadiv > 3);
2083
2084 ucodeflags = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,
2085 B43legacy_UCODEFLAGS_OFFSET);
2086 b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
2087 B43legacy_UCODEFLAGS_OFFSET,
2088 ucodeflags & ~B43legacy_UCODEFLAG_AUTODIV);
2089
2090 switch (phy->type) {
2091 case B43legacy_PHYTYPE_G:
2092 offset = 0x0400;
2093
2094 if (antennadiv == 2)
2095 value = (3/*automatic*/ << 7);
2096 else
2097 value = (antennadiv << 7);
2098 b43legacy_phy_write(dev, offset + 1,
2099 (b43legacy_phy_read(dev, offset + 1)
2100 & 0x7E7F) | value);
2101
2102 if (antennadiv >= 2) {
2103 if (antennadiv == 2)
2104 value = (antennadiv << 7);
2105 else
2106 value = (0/*force0*/ << 7);
2107 b43legacy_phy_write(dev, offset + 0x2B,
2108 (b43legacy_phy_read(dev,
2109 offset + 0x2B)
2110 & 0xFEFF) | value);
2111 }
2112
2113 if (phy->type == B43legacy_PHYTYPE_G) {
2114 if (antennadiv >= 2)
2115 b43legacy_phy_write(dev, 0x048C,
2116 b43legacy_phy_read(dev,
2117 0x048C) | 0x2000);
2118 else
2119 b43legacy_phy_write(dev, 0x048C,
2120 b43legacy_phy_read(dev,
2121 0x048C) & ~0x2000);
2122 if (phy->rev >= 2) {
2123 b43legacy_phy_write(dev, 0x0461,
2124 b43legacy_phy_read(dev,
2125 0x0461) | 0x0010);
2126 b43legacy_phy_write(dev, 0x04AD,
2127 (b43legacy_phy_read(dev,
2128 0x04AD)
2129 & 0x00FF) | 0x0015);
2130 if (phy->rev == 2)
2131 b43legacy_phy_write(dev, 0x0427,
2132 0x0008);
2133 else
2134 b43legacy_phy_write(dev, 0x0427,
2135 (b43legacy_phy_read(dev, 0x0427)
2136 & 0x00FF) | 0x0008);
2137 } else if (phy->rev >= 6)
2138 b43legacy_phy_write(dev, 0x049B, 0x00DC);
2139 } else {
2140 if (phy->rev < 3)
2141 b43legacy_phy_write(dev, 0x002B,
2142 (b43legacy_phy_read(dev,
2143 0x002B) & 0x00FF)
2144 | 0x0024);
2145 else {
2146 b43legacy_phy_write(dev, 0x0061,
2147 b43legacy_phy_read(dev,
2148 0x0061) | 0x0010);
2149 if (phy->rev == 3) {
2150 b43legacy_phy_write(dev, 0x0093,
2151 0x001D);
2152 b43legacy_phy_write(dev, 0x0027,
2153 0x0008);
2154 } else {
2155 b43legacy_phy_write(dev, 0x0093,
2156 0x003A);
2157 b43legacy_phy_write(dev, 0x0027,
2158 (b43legacy_phy_read(dev, 0x0027)
2159 & 0x00FF) | 0x0008);
2160 }
2161 }
2162 }
2163 break;
2164 case B43legacy_PHYTYPE_B:
2165 if (dev->dev->id.revision == 2)
2166 value = (3/*automatic*/ << 7);
2167 else
2168 value = (antennadiv << 7);
2169 b43legacy_phy_write(dev, 0x03E2,
2170 (b43legacy_phy_read(dev, 0x03E2)
2171 & 0xFE7F) | value);
2172 break;
2173 default:
2174 B43legacy_WARN_ON(1);
2175 }
2176
2177 if (antennadiv >= 2) {
2178 ucodeflags = b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,
2179 B43legacy_UCODEFLAGS_OFFSET);
2180 b43legacy_shm_write32(dev, B43legacy_SHM_SHARED,
2181 B43legacy_UCODEFLAGS_OFFSET,
2182 ucodeflags | B43legacy_UCODEFLAG_AUTODIV);
2183 }
2184
2185 phy->antenna_diversity = antennadiv;
2186 }
2187
2188 /* Set the PowerSavingControlBits.
2189 * Bitvalues:
2190 * 0 => unset the bit
2191 * 1 => set the bit
2192 * -1 => calculate the bit
2193 */
b43legacy_power_saving_ctl_bits(struct b43legacy_wldev * dev,int bit25,int bit26)2194 void b43legacy_power_saving_ctl_bits(struct b43legacy_wldev *dev,
2195 int bit25, int bit26)
2196 {
2197 int i;
2198 u32 status;
2199
2200 /* FIXME: Force 25 to off and 26 to on for now: */
2201 bit25 = 0;
2202 bit26 = 1;
2203
2204 if (bit25 == -1) {
2205 /* TODO: If powersave is not off and FIXME is not set and we
2206 * are not in adhoc and thus is not an AP and we arei
2207 * associated, set bit 25 */
2208 }
2209 if (bit26 == -1) {
2210 /* TODO: If the device is awake or this is an AP, or we are
2211 * scanning, or FIXME, or we are associated, or FIXME,
2212 * or the latest PS-Poll packet sent was successful,
2213 * set bit26 */
2214 }
2215 status = b43legacy_read32(dev, B43legacy_MMIO_MACCTL);
2216 if (bit25)
2217 status |= B43legacy_MACCTL_HWPS;
2218 else
2219 status &= ~B43legacy_MACCTL_HWPS;
2220 if (bit26)
2221 status |= B43legacy_MACCTL_AWAKE;
2222 else
2223 status &= ~B43legacy_MACCTL_AWAKE;
2224 b43legacy_write32(dev, B43legacy_MMIO_MACCTL, status);
2225 if (bit26 && dev->dev->id.revision >= 5) {
2226 for (i = 0; i < 100; i++) {
2227 if (b43legacy_shm_read32(dev, B43legacy_SHM_SHARED,
2228 0x0040) != 4)
2229 break;
2230 udelay(10);
2231 }
2232 }
2233 }
2234