1 /*
2
3 Broadcom B43 wireless driver
4 IEEE 802.11n HT-PHY support
5
6 Copyright (c) 2011 Rafał Miłecki <zajec5@gmail.com>
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program; see the file COPYING. If not, write to
20 the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
21 Boston, MA 02110-1301, USA.
22
23 */
24
25 #include <linux/slab.h>
26
27 #include "b43.h"
28 #include "phy_ht.h"
29 #include "tables_phy_ht.h"
30 #include "radio_2059.h"
31 #include "main.h"
32
33 /* Force values to keep compatibility with wl */
34 enum ht_rssi_type {
35 HT_RSSI_W1 = 0,
36 HT_RSSI_W2 = 1,
37 HT_RSSI_NB = 2,
38 HT_RSSI_IQ = 3,
39 HT_RSSI_TSSI_2G = 4,
40 HT_RSSI_TSSI_5G = 5,
41 HT_RSSI_TBD = 6,
42 };
43
44 /**************************************************
45 * Radio 2059.
46 **************************************************/
47
b43_radio_2059_channel_setup(struct b43_wldev * dev,const struct b43_phy_ht_channeltab_e_radio2059 * e)48 static void b43_radio_2059_channel_setup(struct b43_wldev *dev,
49 const struct b43_phy_ht_channeltab_e_radio2059 *e)
50 {
51 static const u16 routing[] = { R2059_C1, R2059_C2, R2059_C3, };
52 u16 r;
53 int core;
54
55 b43_radio_write(dev, 0x16, e->radio_syn16);
56 b43_radio_write(dev, 0x17, e->radio_syn17);
57 b43_radio_write(dev, 0x22, e->radio_syn22);
58 b43_radio_write(dev, 0x25, e->radio_syn25);
59 b43_radio_write(dev, 0x27, e->radio_syn27);
60 b43_radio_write(dev, 0x28, e->radio_syn28);
61 b43_radio_write(dev, 0x29, e->radio_syn29);
62 b43_radio_write(dev, 0x2c, e->radio_syn2c);
63 b43_radio_write(dev, 0x2d, e->radio_syn2d);
64 b43_radio_write(dev, 0x37, e->radio_syn37);
65 b43_radio_write(dev, 0x41, e->radio_syn41);
66 b43_radio_write(dev, 0x43, e->radio_syn43);
67 b43_radio_write(dev, 0x47, e->radio_syn47);
68
69 for (core = 0; core < 3; core++) {
70 r = routing[core];
71 b43_radio_write(dev, r | 0x4a, e->radio_rxtx4a);
72 b43_radio_write(dev, r | 0x58, e->radio_rxtx58);
73 b43_radio_write(dev, r | 0x5a, e->radio_rxtx5a);
74 b43_radio_write(dev, r | 0x6a, e->radio_rxtx6a);
75 b43_radio_write(dev, r | 0x6d, e->radio_rxtx6d);
76 b43_radio_write(dev, r | 0x6e, e->radio_rxtx6e);
77 b43_radio_write(dev, r | 0x92, e->radio_rxtx92);
78 b43_radio_write(dev, r | 0x98, e->radio_rxtx98);
79 }
80
81 udelay(50);
82
83 /* Calibration */
84 b43_radio_mask(dev, 0x2b, ~0x1);
85 b43_radio_mask(dev, 0x2e, ~0x4);
86 b43_radio_set(dev, 0x2e, 0x4);
87 b43_radio_set(dev, 0x2b, 0x1);
88
89 udelay(300);
90 }
91
b43_radio_2059_init(struct b43_wldev * dev)92 static void b43_radio_2059_init(struct b43_wldev *dev)
93 {
94 const u16 routing[] = { R2059_C1, R2059_C2, R2059_C3 };
95 const u16 radio_values[3][2] = {
96 { 0x61, 0xE9 }, { 0x69, 0xD5 }, { 0x73, 0x99 },
97 };
98 u16 i, j;
99
100 b43_radio_write(dev, R2059_ALL | 0x51, 0x0070);
101 b43_radio_write(dev, R2059_ALL | 0x5a, 0x0003);
102
103 for (i = 0; i < ARRAY_SIZE(routing); i++)
104 b43_radio_set(dev, routing[i] | 0x146, 0x3);
105
106 b43_radio_set(dev, 0x2e, 0x0078);
107 b43_radio_set(dev, 0xc0, 0x0080);
108 msleep(2);
109 b43_radio_mask(dev, 0x2e, ~0x0078);
110 b43_radio_mask(dev, 0xc0, ~0x0080);
111
112 if (1) { /* FIXME */
113 b43_radio_set(dev, R2059_C3 | 0x4, 0x1);
114 udelay(10);
115 b43_radio_set(dev, R2059_C3 | 0x0BF, 0x1);
116 b43_radio_maskset(dev, R2059_C3 | 0x19B, 0x3, 0x2);
117
118 b43_radio_set(dev, R2059_C3 | 0x4, 0x2);
119 udelay(100);
120 b43_radio_mask(dev, R2059_C3 | 0x4, ~0x2);
121
122 for (i = 0; i < 10000; i++) {
123 if (b43_radio_read(dev, R2059_C3 | 0x145) & 1) {
124 i = 0;
125 break;
126 }
127 udelay(100);
128 }
129 if (i)
130 b43err(dev->wl, "radio 0x945 timeout\n");
131
132 b43_radio_mask(dev, R2059_C3 | 0x4, ~0x1);
133 b43_radio_set(dev, 0xa, 0x60);
134
135 for (i = 0; i < 3; i++) {
136 b43_radio_write(dev, 0x17F, radio_values[i][0]);
137 b43_radio_write(dev, 0x13D, 0x6E);
138 b43_radio_write(dev, 0x13E, radio_values[i][1]);
139 b43_radio_write(dev, 0x13C, 0x55);
140
141 for (j = 0; j < 10000; j++) {
142 if (b43_radio_read(dev, 0x140) & 2) {
143 j = 0;
144 break;
145 }
146 udelay(500);
147 }
148 if (j)
149 b43err(dev->wl, "radio 0x140 timeout\n");
150
151 b43_radio_write(dev, 0x13C, 0x15);
152 }
153
154 b43_radio_mask(dev, 0x17F, ~0x1);
155 }
156
157 b43_radio_mask(dev, 0x11, ~0x0008);
158 }
159
160 /**************************************************
161 * RF
162 **************************************************/
163
b43_phy_ht_force_rf_sequence(struct b43_wldev * dev,u16 rf_seq)164 static void b43_phy_ht_force_rf_sequence(struct b43_wldev *dev, u16 rf_seq)
165 {
166 u8 i;
167
168 u16 save_seq_mode = b43_phy_read(dev, B43_PHY_HT_RF_SEQ_MODE);
169 b43_phy_set(dev, B43_PHY_HT_RF_SEQ_MODE, 0x3);
170
171 b43_phy_set(dev, B43_PHY_HT_RF_SEQ_TRIG, rf_seq);
172 for (i = 0; i < 200; i++) {
173 if (!(b43_phy_read(dev, B43_PHY_HT_RF_SEQ_STATUS) & rf_seq)) {
174 i = 0;
175 break;
176 }
177 msleep(1);
178 }
179 if (i)
180 b43err(dev->wl, "Forcing RF sequence timeout\n");
181
182 b43_phy_write(dev, B43_PHY_HT_RF_SEQ_MODE, save_seq_mode);
183 }
184
b43_phy_ht_pa_override(struct b43_wldev * dev,bool enable)185 static void b43_phy_ht_pa_override(struct b43_wldev *dev, bool enable)
186 {
187 struct b43_phy_ht *htphy = dev->phy.ht;
188 static const u16 regs[3] = { B43_PHY_HT_RF_CTL_INT_C1,
189 B43_PHY_HT_RF_CTL_INT_C2,
190 B43_PHY_HT_RF_CTL_INT_C3 };
191 int i;
192
193 if (enable) {
194 for (i = 0; i < 3; i++)
195 b43_phy_write(dev, regs[i], htphy->rf_ctl_int_save[i]);
196 } else {
197 for (i = 0; i < 3; i++)
198 htphy->rf_ctl_int_save[i] = b43_phy_read(dev, regs[i]);
199 /* TODO: Does 5GHz band use different value (not 0x0400)? */
200 for (i = 0; i < 3; i++)
201 b43_phy_write(dev, regs[i], 0x0400);
202 }
203 }
204
205 /**************************************************
206 * Various PHY ops
207 **************************************************/
208
b43_phy_ht_classifier(struct b43_wldev * dev,u16 mask,u16 val)209 static u16 b43_phy_ht_classifier(struct b43_wldev *dev, u16 mask, u16 val)
210 {
211 u16 tmp;
212 u16 allowed = B43_PHY_HT_CLASS_CTL_CCK_EN |
213 B43_PHY_HT_CLASS_CTL_OFDM_EN |
214 B43_PHY_HT_CLASS_CTL_WAITED_EN;
215
216 tmp = b43_phy_read(dev, B43_PHY_HT_CLASS_CTL);
217 tmp &= allowed;
218 tmp &= ~mask;
219 tmp |= (val & mask);
220 b43_phy_maskset(dev, B43_PHY_HT_CLASS_CTL, ~allowed, tmp);
221
222 return tmp;
223 }
224
b43_phy_ht_reset_cca(struct b43_wldev * dev)225 static void b43_phy_ht_reset_cca(struct b43_wldev *dev)
226 {
227 u16 bbcfg;
228
229 b43_phy_force_clock(dev, true);
230 bbcfg = b43_phy_read(dev, B43_PHY_HT_BBCFG);
231 b43_phy_write(dev, B43_PHY_HT_BBCFG, bbcfg | B43_PHY_HT_BBCFG_RSTCCA);
232 udelay(1);
233 b43_phy_write(dev, B43_PHY_HT_BBCFG, bbcfg & ~B43_PHY_HT_BBCFG_RSTCCA);
234 b43_phy_force_clock(dev, false);
235
236 b43_phy_ht_force_rf_sequence(dev, B43_PHY_HT_RF_SEQ_TRIG_RST2RX);
237 }
238
b43_phy_ht_zero_extg(struct b43_wldev * dev)239 static void b43_phy_ht_zero_extg(struct b43_wldev *dev)
240 {
241 u8 i, j;
242 u16 base[] = { 0x40, 0x60, 0x80 };
243
244 for (i = 0; i < ARRAY_SIZE(base); i++) {
245 for (j = 0; j < 4; j++)
246 b43_phy_write(dev, B43_PHY_EXTG(base[i] + j), 0);
247 }
248
249 for (i = 0; i < ARRAY_SIZE(base); i++)
250 b43_phy_write(dev, B43_PHY_EXTG(base[i] + 0xc), 0);
251 }
252
253 /* Some unknown AFE (Analog Frondned) op */
b43_phy_ht_afe_unk1(struct b43_wldev * dev)254 static void b43_phy_ht_afe_unk1(struct b43_wldev *dev)
255 {
256 u8 i;
257
258 static const u16 ctl_regs[3][2] = {
259 { B43_PHY_HT_AFE_C1_OVER, B43_PHY_HT_AFE_C1 },
260 { B43_PHY_HT_AFE_C2_OVER, B43_PHY_HT_AFE_C2 },
261 { B43_PHY_HT_AFE_C3_OVER, B43_PHY_HT_AFE_C3},
262 };
263
264 for (i = 0; i < 3; i++) {
265 /* TODO: verify masks&sets */
266 b43_phy_set(dev, ctl_regs[i][1], 0x4);
267 b43_phy_set(dev, ctl_regs[i][0], 0x4);
268 b43_phy_mask(dev, ctl_regs[i][1], ~0x1);
269 b43_phy_set(dev, ctl_regs[i][0], 0x1);
270 b43_httab_write(dev, B43_HTTAB16(8, 5 + (i * 0x10)), 0);
271 b43_phy_mask(dev, ctl_regs[i][0], ~0x4);
272 }
273 }
274
b43_phy_ht_read_clip_detection(struct b43_wldev * dev,u16 * clip_st)275 static void b43_phy_ht_read_clip_detection(struct b43_wldev *dev, u16 *clip_st)
276 {
277 clip_st[0] = b43_phy_read(dev, B43_PHY_HT_C1_CLIP1THRES);
278 clip_st[1] = b43_phy_read(dev, B43_PHY_HT_C2_CLIP1THRES);
279 clip_st[2] = b43_phy_read(dev, B43_PHY_HT_C3_CLIP1THRES);
280 }
281
b43_phy_ht_bphy_init(struct b43_wldev * dev)282 static void b43_phy_ht_bphy_init(struct b43_wldev *dev)
283 {
284 unsigned int i;
285 u16 val;
286
287 val = 0x1E1F;
288 for (i = 0; i < 16; i++) {
289 b43_phy_write(dev, B43_PHY_N_BMODE(0x88 + i), val);
290 val -= 0x202;
291 }
292 val = 0x3E3F;
293 for (i = 0; i < 16; i++) {
294 b43_phy_write(dev, B43_PHY_N_BMODE(0x98 + i), val);
295 val -= 0x202;
296 }
297 b43_phy_write(dev, B43_PHY_N_BMODE(0x38), 0x668);
298 }
299
300 /**************************************************
301 * Samples
302 **************************************************/
303
b43_phy_ht_stop_playback(struct b43_wldev * dev)304 static void b43_phy_ht_stop_playback(struct b43_wldev *dev)
305 {
306 struct b43_phy_ht *phy_ht = dev->phy.ht;
307 u16 tmp;
308 int i;
309
310 tmp = b43_phy_read(dev, B43_PHY_HT_SAMP_STAT);
311 if (tmp & 0x1)
312 b43_phy_set(dev, B43_PHY_HT_SAMP_CMD, B43_PHY_HT_SAMP_CMD_STOP);
313 else if (tmp & 0x2)
314 b43_phy_mask(dev, B43_PHY_HT_IQLOCAL_CMDGCTL, 0x7FFF);
315
316 b43_phy_mask(dev, B43_PHY_HT_SAMP_CMD, ~0x0004);
317
318 for (i = 0; i < 3; i++) {
319 if (phy_ht->bb_mult_save[i] >= 0) {
320 b43_httab_write(dev, B43_HTTAB16(13, 0x63 + i * 4),
321 phy_ht->bb_mult_save[i]);
322 b43_httab_write(dev, B43_HTTAB16(13, 0x67 + i * 4),
323 phy_ht->bb_mult_save[i]);
324 }
325 }
326 }
327
b43_phy_ht_load_samples(struct b43_wldev * dev)328 static u16 b43_phy_ht_load_samples(struct b43_wldev *dev)
329 {
330 int i;
331 u16 len = 20 << 3;
332
333 b43_phy_write(dev, B43_PHY_HT_TABLE_ADDR, 0x4400);
334
335 for (i = 0; i < len; i++) {
336 b43_phy_write(dev, B43_PHY_HT_TABLE_DATAHI, 0);
337 b43_phy_write(dev, B43_PHY_HT_TABLE_DATALO, 0);
338 }
339
340 return len;
341 }
342
b43_phy_ht_run_samples(struct b43_wldev * dev,u16 samps,u16 loops,u16 wait)343 static void b43_phy_ht_run_samples(struct b43_wldev *dev, u16 samps, u16 loops,
344 u16 wait)
345 {
346 struct b43_phy_ht *phy_ht = dev->phy.ht;
347 u16 save_seq_mode;
348 int i;
349
350 for (i = 0; i < 3; i++) {
351 if (phy_ht->bb_mult_save[i] < 0)
352 phy_ht->bb_mult_save[i] = b43_httab_read(dev, B43_HTTAB16(13, 0x63 + i * 4));
353 }
354
355 b43_phy_write(dev, B43_PHY_HT_SAMP_DEP_CNT, samps - 1);
356 if (loops != 0xFFFF)
357 loops--;
358 b43_phy_write(dev, B43_PHY_HT_SAMP_LOOP_CNT, loops);
359 b43_phy_write(dev, B43_PHY_HT_SAMP_WAIT_CNT, wait);
360
361 save_seq_mode = b43_phy_read(dev, B43_PHY_HT_RF_SEQ_MODE);
362 b43_phy_set(dev, B43_PHY_HT_RF_SEQ_MODE,
363 B43_PHY_HT_RF_SEQ_MODE_CA_OVER);
364
365 /* TODO: find out mask bits! Do we need more function arguments? */
366 b43_phy_mask(dev, B43_PHY_HT_SAMP_CMD, ~0);
367 b43_phy_mask(dev, B43_PHY_HT_SAMP_CMD, ~0);
368 b43_phy_mask(dev, B43_PHY_HT_IQLOCAL_CMDGCTL, ~0);
369 b43_phy_set(dev, B43_PHY_HT_SAMP_CMD, 0x1);
370
371 for (i = 0; i < 100; i++) {
372 if (!(b43_phy_read(dev, B43_PHY_HT_RF_SEQ_STATUS) & 1)) {
373 i = 0;
374 break;
375 }
376 udelay(10);
377 }
378 if (i)
379 b43err(dev->wl, "run samples timeout\n");
380
381 b43_phy_write(dev, B43_PHY_HT_RF_SEQ_MODE, save_seq_mode);
382 }
383
b43_phy_ht_tx_tone(struct b43_wldev * dev)384 static void b43_phy_ht_tx_tone(struct b43_wldev *dev)
385 {
386 u16 samp;
387
388 samp = b43_phy_ht_load_samples(dev);
389 b43_phy_ht_run_samples(dev, samp, 0xFFFF, 0);
390 }
391
392 /**************************************************
393 * RSSI
394 **************************************************/
395
b43_phy_ht_rssi_select(struct b43_wldev * dev,u8 core_sel,enum ht_rssi_type rssi_type)396 static void b43_phy_ht_rssi_select(struct b43_wldev *dev, u8 core_sel,
397 enum ht_rssi_type rssi_type)
398 {
399 static const u16 ctl_regs[3][2] = {
400 { B43_PHY_HT_AFE_C1, B43_PHY_HT_AFE_C1_OVER, },
401 { B43_PHY_HT_AFE_C2, B43_PHY_HT_AFE_C2_OVER, },
402 { B43_PHY_HT_AFE_C3, B43_PHY_HT_AFE_C3_OVER, },
403 };
404 static const u16 radio_r[] = { R2059_C1, R2059_C2, R2059_C3, };
405 int core;
406
407 if (core_sel == 0) {
408 b43err(dev->wl, "RSSI selection for core off not implemented yet\n");
409 } else {
410 for (core = 0; core < 3; core++) {
411 /* Check if caller requested a one specific core */
412 if ((core_sel == 1 && core != 0) ||
413 (core_sel == 2 && core != 1) ||
414 (core_sel == 3 && core != 2))
415 continue;
416
417 switch (rssi_type) {
418 case HT_RSSI_TSSI_2G:
419 b43_phy_set(dev, ctl_regs[core][0], 0x3 << 8);
420 b43_phy_set(dev, ctl_regs[core][0], 0x3 << 10);
421 b43_phy_set(dev, ctl_regs[core][1], 0x1 << 9);
422 b43_phy_set(dev, ctl_regs[core][1], 0x1 << 10);
423
424 b43_radio_set(dev, R2059_C3 | 0xbf, 0x1);
425 b43_radio_write(dev, radio_r[core] | 0x159,
426 0x11);
427 break;
428 default:
429 b43err(dev->wl, "RSSI selection for type %d not implemented yet\n",
430 rssi_type);
431 }
432 }
433 }
434 }
435
b43_phy_ht_poll_rssi(struct b43_wldev * dev,enum ht_rssi_type type,s32 * buf,u8 nsamp)436 static void b43_phy_ht_poll_rssi(struct b43_wldev *dev, enum ht_rssi_type type,
437 s32 *buf, u8 nsamp)
438 {
439 u16 phy_regs_values[12];
440 static const u16 phy_regs_to_save[] = {
441 B43_PHY_HT_AFE_C1, B43_PHY_HT_AFE_C1_OVER,
442 0x848, 0x841,
443 B43_PHY_HT_AFE_C2, B43_PHY_HT_AFE_C2_OVER,
444 0x868, 0x861,
445 B43_PHY_HT_AFE_C3, B43_PHY_HT_AFE_C3_OVER,
446 0x888, 0x881,
447 };
448 u16 tmp[3];
449 int i;
450
451 for (i = 0; i < 12; i++)
452 phy_regs_values[i] = b43_phy_read(dev, phy_regs_to_save[i]);
453
454 b43_phy_ht_rssi_select(dev, 5, type);
455
456 for (i = 0; i < 6; i++)
457 buf[i] = 0;
458
459 for (i = 0; i < nsamp; i++) {
460 tmp[0] = b43_phy_read(dev, B43_PHY_HT_RSSI_C1);
461 tmp[1] = b43_phy_read(dev, B43_PHY_HT_RSSI_C2);
462 tmp[2] = b43_phy_read(dev, B43_PHY_HT_RSSI_C3);
463
464 buf[0] += ((s8)((tmp[0] & 0x3F) << 2)) >> 2;
465 buf[1] += ((s8)(((tmp[0] >> 8) & 0x3F) << 2)) >> 2;
466 buf[2] += ((s8)((tmp[1] & 0x3F) << 2)) >> 2;
467 buf[3] += ((s8)(((tmp[1] >> 8) & 0x3F) << 2)) >> 2;
468 buf[4] += ((s8)((tmp[2] & 0x3F) << 2)) >> 2;
469 buf[5] += ((s8)(((tmp[2] >> 8) & 0x3F) << 2)) >> 2;
470 }
471
472 for (i = 0; i < 12; i++)
473 b43_phy_write(dev, phy_regs_to_save[i], phy_regs_values[i]);
474 }
475
476 /**************************************************
477 * Tx/Rx
478 **************************************************/
479
b43_phy_ht_tx_power_fix(struct b43_wldev * dev)480 static void b43_phy_ht_tx_power_fix(struct b43_wldev *dev)
481 {
482 int i;
483
484 for (i = 0; i < 3; i++) {
485 u16 mask;
486 u32 tmp = b43_httab_read(dev, B43_HTTAB32(26, 0xE8));
487
488 if (0) /* FIXME */
489 mask = 0x2 << (i * 4);
490 else
491 mask = 0;
492 b43_phy_mask(dev, B43_PHY_EXTG(0x108), mask);
493
494 b43_httab_write(dev, B43_HTTAB16(7, 0x110 + i), tmp >> 16);
495 b43_httab_write(dev, B43_HTTAB8(13, 0x63 + (i * 4)),
496 tmp & 0xFF);
497 b43_httab_write(dev, B43_HTTAB8(13, 0x73 + (i * 4)),
498 tmp & 0xFF);
499 }
500 }
501
b43_phy_ht_tx_power_ctl(struct b43_wldev * dev,bool enable)502 static void b43_phy_ht_tx_power_ctl(struct b43_wldev *dev, bool enable)
503 {
504 struct b43_phy_ht *phy_ht = dev->phy.ht;
505 u16 en_bits = B43_PHY_HT_TXPCTL_CMD_C1_COEFF |
506 B43_PHY_HT_TXPCTL_CMD_C1_HWPCTLEN |
507 B43_PHY_HT_TXPCTL_CMD_C1_PCTLEN;
508 static const u16 cmd_regs[3] = { B43_PHY_HT_TXPCTL_CMD_C1,
509 B43_PHY_HT_TXPCTL_CMD_C2,
510 B43_PHY_HT_TXPCTL_CMD_C3 };
511 static const u16 status_regs[3] = { B43_PHY_HT_TX_PCTL_STATUS_C1,
512 B43_PHY_HT_TX_PCTL_STATUS_C2,
513 B43_PHY_HT_TX_PCTL_STATUS_C3 };
514 int i;
515
516 if (!enable) {
517 if (b43_phy_read(dev, B43_PHY_HT_TXPCTL_CMD_C1) & en_bits) {
518 /* We disable enabled TX pwr ctl, save it's state */
519 for (i = 0; i < 3; i++)
520 phy_ht->tx_pwr_idx[i] =
521 b43_phy_read(dev, status_regs[i]);
522 }
523 b43_phy_mask(dev, B43_PHY_HT_TXPCTL_CMD_C1, ~en_bits);
524 } else {
525 b43_phy_set(dev, B43_PHY_HT_TXPCTL_CMD_C1, en_bits);
526
527 if (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ) {
528 for (i = 0; i < 3; i++)
529 b43_phy_write(dev, cmd_regs[i], 0x32);
530 }
531
532 for (i = 0; i < 3; i++)
533 if (phy_ht->tx_pwr_idx[i] <=
534 B43_PHY_HT_TXPCTL_CMD_C1_INIT)
535 b43_phy_write(dev, cmd_regs[i],
536 phy_ht->tx_pwr_idx[i]);
537 }
538
539 phy_ht->tx_pwr_ctl = enable;
540 }
541
b43_phy_ht_tx_power_ctl_idle_tssi(struct b43_wldev * dev)542 static void b43_phy_ht_tx_power_ctl_idle_tssi(struct b43_wldev *dev)
543 {
544 struct b43_phy_ht *phy_ht = dev->phy.ht;
545 static const u16 base[] = { 0x840, 0x860, 0x880 };
546 u16 save_regs[3][3];
547 s32 rssi_buf[6];
548 int core;
549
550 for (core = 0; core < 3; core++) {
551 save_regs[core][1] = b43_phy_read(dev, base[core] + 6);
552 save_regs[core][2] = b43_phy_read(dev, base[core] + 7);
553 save_regs[core][0] = b43_phy_read(dev, base[core] + 0);
554
555 b43_phy_write(dev, base[core] + 6, 0);
556 b43_phy_mask(dev, base[core] + 7, ~0xF); /* 0xF? Or just 0x6? */
557 b43_phy_set(dev, base[core] + 0, 0x0400);
558 b43_phy_set(dev, base[core] + 0, 0x1000);
559 }
560
561 b43_phy_ht_tx_tone(dev);
562 udelay(20);
563 b43_phy_ht_poll_rssi(dev, HT_RSSI_TSSI_2G, rssi_buf, 1);
564 b43_phy_ht_stop_playback(dev);
565 b43_phy_ht_reset_cca(dev);
566
567 phy_ht->idle_tssi[0] = rssi_buf[0] & 0xff;
568 phy_ht->idle_tssi[1] = rssi_buf[2] & 0xff;
569 phy_ht->idle_tssi[2] = rssi_buf[4] & 0xff;
570
571 for (core = 0; core < 3; core++) {
572 b43_phy_write(dev, base[core] + 0, save_regs[core][0]);
573 b43_phy_write(dev, base[core] + 6, save_regs[core][1]);
574 b43_phy_write(dev, base[core] + 7, save_regs[core][2]);
575 }
576 }
577
b43_phy_ht_tssi_setup(struct b43_wldev * dev)578 static void b43_phy_ht_tssi_setup(struct b43_wldev *dev)
579 {
580 static const u16 routing[] = { R2059_C1, R2059_C2, R2059_C3, };
581 int core;
582
583 /* 0x159 is probably TX_SSI_MUX or TSSIG (by comparing to N-PHY) */
584 for (core = 0; core < 3; core++) {
585 b43_radio_set(dev, 0x8bf, 0x1);
586 b43_radio_write(dev, routing[core] | 0x0159, 0x0011);
587 }
588 }
589
b43_phy_ht_tx_power_ctl_setup(struct b43_wldev * dev)590 static void b43_phy_ht_tx_power_ctl_setup(struct b43_wldev *dev)
591 {
592 struct b43_phy_ht *phy_ht = dev->phy.ht;
593 struct ssb_sprom *sprom = dev->dev->bus_sprom;
594
595 u8 *idle = phy_ht->idle_tssi;
596 u8 target[3];
597 s16 a1[3], b0[3], b1[3];
598
599 u16 freq = dev->phy.channel_freq;
600 int i, c;
601
602 if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
603 for (c = 0; c < 3; c++) {
604 target[c] = sprom->core_pwr_info[c].maxpwr_2g;
605 a1[c] = sprom->core_pwr_info[c].pa_2g[0];
606 b0[c] = sprom->core_pwr_info[c].pa_2g[1];
607 b1[c] = sprom->core_pwr_info[c].pa_2g[2];
608 }
609 } else if (freq >= 4900 && freq < 5100) {
610 for (c = 0; c < 3; c++) {
611 target[c] = sprom->core_pwr_info[c].maxpwr_5gl;
612 a1[c] = sprom->core_pwr_info[c].pa_5gl[0];
613 b0[c] = sprom->core_pwr_info[c].pa_5gl[1];
614 b1[c] = sprom->core_pwr_info[c].pa_5gl[2];
615 }
616 } else if (freq >= 5100 && freq < 5500) {
617 for (c = 0; c < 3; c++) {
618 target[c] = sprom->core_pwr_info[c].maxpwr_5g;
619 a1[c] = sprom->core_pwr_info[c].pa_5g[0];
620 b0[c] = sprom->core_pwr_info[c].pa_5g[1];
621 b1[c] = sprom->core_pwr_info[c].pa_5g[2];
622 }
623 } else if (freq >= 5500) {
624 for (c = 0; c < 3; c++) {
625 target[c] = sprom->core_pwr_info[c].maxpwr_5gh;
626 a1[c] = sprom->core_pwr_info[c].pa_5gh[0];
627 b0[c] = sprom->core_pwr_info[c].pa_5gh[1];
628 b1[c] = sprom->core_pwr_info[c].pa_5gh[2];
629 }
630 } else {
631 target[0] = target[1] = target[2] = 52;
632 a1[0] = a1[1] = a1[2] = -424;
633 b0[0] = b0[1] = b0[2] = 5612;
634 b1[0] = b1[1] = b1[2] = -1393;
635 }
636
637 b43_phy_set(dev, B43_PHY_HT_TSSIMODE, B43_PHY_HT_TSSIMODE_EN);
638 b43_phy_mask(dev, B43_PHY_HT_TXPCTL_CMD_C1,
639 ~B43_PHY_HT_TXPCTL_CMD_C1_PCTLEN & 0xFFFF);
640
641 /* TODO: Does it depend on sprom->fem.ghz2.tssipos? */
642 b43_phy_set(dev, B43_PHY_HT_TXPCTL_IDLE_TSSI, 0x4000);
643
644 b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_CMD_C1,
645 ~B43_PHY_HT_TXPCTL_CMD_C1_INIT, 0x19);
646 b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_CMD_C2,
647 ~B43_PHY_HT_TXPCTL_CMD_C2_INIT, 0x19);
648 b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_CMD_C3,
649 ~B43_PHY_HT_TXPCTL_CMD_C3_INIT, 0x19);
650
651 b43_phy_set(dev, B43_PHY_HT_TXPCTL_IDLE_TSSI,
652 B43_PHY_HT_TXPCTL_IDLE_TSSI_BINF);
653
654 b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_IDLE_TSSI,
655 ~B43_PHY_HT_TXPCTL_IDLE_TSSI_C1,
656 idle[0] << B43_PHY_HT_TXPCTL_IDLE_TSSI_C1_SHIFT);
657 b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_IDLE_TSSI,
658 ~B43_PHY_HT_TXPCTL_IDLE_TSSI_C2,
659 idle[1] << B43_PHY_HT_TXPCTL_IDLE_TSSI_C2_SHIFT);
660 b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_IDLE_TSSI2,
661 ~B43_PHY_HT_TXPCTL_IDLE_TSSI2_C3,
662 idle[2] << B43_PHY_HT_TXPCTL_IDLE_TSSI2_C3_SHIFT);
663
664 b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_N, ~B43_PHY_HT_TXPCTL_N_TSSID,
665 0xf0);
666 b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_N, ~B43_PHY_HT_TXPCTL_N_NPTIL2,
667 0x3 << B43_PHY_HT_TXPCTL_N_NPTIL2_SHIFT);
668 #if 0
669 /* TODO: what to mask/set? */
670 b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_CMD_C1, 0x800, 0)
671 b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_CMD_C1, 0x400, 0)
672 #endif
673
674 b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_TARG_PWR,
675 ~B43_PHY_HT_TXPCTL_TARG_PWR_C1,
676 target[0] << B43_PHY_HT_TXPCTL_TARG_PWR_C1_SHIFT);
677 b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_TARG_PWR,
678 ~B43_PHY_HT_TXPCTL_TARG_PWR_C2 & 0xFFFF,
679 target[1] << B43_PHY_HT_TXPCTL_TARG_PWR_C2_SHIFT);
680 b43_phy_maskset(dev, B43_PHY_HT_TXPCTL_TARG_PWR2,
681 ~B43_PHY_HT_TXPCTL_TARG_PWR2_C3,
682 target[2] << B43_PHY_HT_TXPCTL_TARG_PWR2_C3_SHIFT);
683
684 for (c = 0; c < 3; c++) {
685 s32 num, den, pwr;
686 u32 regval[64];
687
688 for (i = 0; i < 64; i++) {
689 num = 8 * (16 * b0[c] + b1[c] * i);
690 den = 32768 + a1[c] * i;
691 pwr = max((4 * num + den / 2) / den, -8);
692 regval[i] = pwr;
693 }
694 b43_httab_write_bulk(dev, B43_HTTAB16(26 + c, 0), 64, regval);
695 }
696 }
697
698 /**************************************************
699 * Channel switching ops.
700 **************************************************/
701
b43_phy_ht_spur_avoid(struct b43_wldev * dev,struct ieee80211_channel * new_channel)702 static void b43_phy_ht_spur_avoid(struct b43_wldev *dev,
703 struct ieee80211_channel *new_channel)
704 {
705 struct bcma_device *core = dev->dev->bdev;
706 int spuravoid = 0;
707 u16 tmp;
708
709 /* Check for 13 and 14 is just a guess, we don't have enough logs. */
710 if (new_channel->hw_value == 13 || new_channel->hw_value == 14)
711 spuravoid = 1;
712 bcma_core_pll_ctl(core, B43_BCMA_CLKCTLST_PHY_PLL_REQ, 0, false);
713 bcma_pmu_spuravoid_pllupdate(&core->bus->drv_cc, spuravoid);
714 bcma_core_pll_ctl(core,
715 B43_BCMA_CLKCTLST_80211_PLL_REQ |
716 B43_BCMA_CLKCTLST_PHY_PLL_REQ,
717 B43_BCMA_CLKCTLST_80211_PLL_ST |
718 B43_BCMA_CLKCTLST_PHY_PLL_ST, false);
719
720 /* Values has been taken from wlc_bmac_switch_macfreq comments */
721 switch (spuravoid) {
722 case 2: /* 126MHz */
723 tmp = 0x2082;
724 break;
725 case 1: /* 123MHz */
726 tmp = 0x5341;
727 break;
728 default: /* 120MHz */
729 tmp = 0x8889;
730 }
731
732 b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, tmp);
733 b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x8);
734
735 /* TODO: reset PLL */
736
737 if (spuravoid)
738 b43_phy_set(dev, B43_PHY_HT_BBCFG, B43_PHY_HT_BBCFG_RSTRX);
739 else
740 b43_phy_mask(dev, B43_PHY_HT_BBCFG,
741 ~B43_PHY_HT_BBCFG_RSTRX & 0xFFFF);
742
743 b43_phy_ht_reset_cca(dev);
744 }
745
b43_phy_ht_channel_setup(struct b43_wldev * dev,const struct b43_phy_ht_channeltab_e_phy * e,struct ieee80211_channel * new_channel)746 static void b43_phy_ht_channel_setup(struct b43_wldev *dev,
747 const struct b43_phy_ht_channeltab_e_phy *e,
748 struct ieee80211_channel *new_channel)
749 {
750 bool old_band_5ghz;
751
752 old_band_5ghz = b43_phy_read(dev, B43_PHY_HT_BANDCTL) & 0; /* FIXME */
753 if (new_channel->band == IEEE80211_BAND_5GHZ && !old_band_5ghz) {
754 /* TODO */
755 } else if (new_channel->band == IEEE80211_BAND_2GHZ && old_band_5ghz) {
756 /* TODO */
757 }
758
759 b43_phy_write(dev, B43_PHY_HT_BW1, e->bw1);
760 b43_phy_write(dev, B43_PHY_HT_BW2, e->bw2);
761 b43_phy_write(dev, B43_PHY_HT_BW3, e->bw3);
762 b43_phy_write(dev, B43_PHY_HT_BW4, e->bw4);
763 b43_phy_write(dev, B43_PHY_HT_BW5, e->bw5);
764 b43_phy_write(dev, B43_PHY_HT_BW6, e->bw6);
765
766 if (new_channel->hw_value == 14) {
767 b43_phy_ht_classifier(dev, B43_PHY_HT_CLASS_CTL_OFDM_EN, 0);
768 b43_phy_set(dev, B43_PHY_HT_TEST, 0x0800);
769 } else {
770 b43_phy_ht_classifier(dev, B43_PHY_HT_CLASS_CTL_OFDM_EN,
771 B43_PHY_HT_CLASS_CTL_OFDM_EN);
772 if (new_channel->band == IEEE80211_BAND_2GHZ)
773 b43_phy_mask(dev, B43_PHY_HT_TEST, ~0x840);
774 }
775
776 if (1) /* TODO: On N it's for early devices only, what about HT? */
777 b43_phy_ht_tx_power_fix(dev);
778
779 b43_phy_ht_spur_avoid(dev, new_channel);
780
781 b43_phy_write(dev, 0x017e, 0x3830);
782 }
783
b43_phy_ht_set_channel(struct b43_wldev * dev,struct ieee80211_channel * channel,enum nl80211_channel_type channel_type)784 static int b43_phy_ht_set_channel(struct b43_wldev *dev,
785 struct ieee80211_channel *channel,
786 enum nl80211_channel_type channel_type)
787 {
788 struct b43_phy *phy = &dev->phy;
789
790 const struct b43_phy_ht_channeltab_e_radio2059 *chent_r2059 = NULL;
791
792 if (phy->radio_ver == 0x2059) {
793 chent_r2059 = b43_phy_ht_get_channeltab_e_r2059(dev,
794 channel->center_freq);
795 if (!chent_r2059)
796 return -ESRCH;
797 } else {
798 return -ESRCH;
799 }
800
801 /* TODO: In case of N-PHY some bandwidth switching goes here */
802
803 if (phy->radio_ver == 0x2059) {
804 b43_radio_2059_channel_setup(dev, chent_r2059);
805 b43_phy_ht_channel_setup(dev, &(chent_r2059->phy_regs),
806 channel);
807 } else {
808 return -ESRCH;
809 }
810
811 return 0;
812 }
813
814 /**************************************************
815 * Basic PHY ops.
816 **************************************************/
817
b43_phy_ht_op_allocate(struct b43_wldev * dev)818 static int b43_phy_ht_op_allocate(struct b43_wldev *dev)
819 {
820 struct b43_phy_ht *phy_ht;
821
822 phy_ht = kzalloc(sizeof(*phy_ht), GFP_KERNEL);
823 if (!phy_ht)
824 return -ENOMEM;
825 dev->phy.ht = phy_ht;
826
827 return 0;
828 }
829
b43_phy_ht_op_prepare_structs(struct b43_wldev * dev)830 static void b43_phy_ht_op_prepare_structs(struct b43_wldev *dev)
831 {
832 struct b43_phy *phy = &dev->phy;
833 struct b43_phy_ht *phy_ht = phy->ht;
834 int i;
835
836 memset(phy_ht, 0, sizeof(*phy_ht));
837
838 phy_ht->tx_pwr_ctl = true;
839 for (i = 0; i < 3; i++)
840 phy_ht->tx_pwr_idx[i] = B43_PHY_HT_TXPCTL_CMD_C1_INIT + 1;
841
842 for (i = 0; i < 3; i++)
843 phy_ht->bb_mult_save[i] = -1;
844 }
845
b43_phy_ht_op_init(struct b43_wldev * dev)846 static int b43_phy_ht_op_init(struct b43_wldev *dev)
847 {
848 struct b43_phy_ht *phy_ht = dev->phy.ht;
849 u16 tmp;
850 u16 clip_state[3];
851 bool saved_tx_pwr_ctl;
852
853 if (dev->dev->bus_type != B43_BUS_BCMA) {
854 b43err(dev->wl, "HT-PHY is supported only on BCMA bus!\n");
855 return -EOPNOTSUPP;
856 }
857
858 b43_phy_ht_tables_init(dev);
859
860 b43_phy_mask(dev, 0x0be, ~0x2);
861 b43_phy_set(dev, 0x23f, 0x7ff);
862 b43_phy_set(dev, 0x240, 0x7ff);
863 b43_phy_set(dev, 0x241, 0x7ff);
864
865 b43_phy_ht_zero_extg(dev);
866
867 b43_phy_mask(dev, B43_PHY_EXTG(0), ~0x3);
868
869 b43_phy_write(dev, B43_PHY_HT_AFE_C1_OVER, 0);
870 b43_phy_write(dev, B43_PHY_HT_AFE_C2_OVER, 0);
871 b43_phy_write(dev, B43_PHY_HT_AFE_C3_OVER, 0);
872
873 b43_phy_write(dev, B43_PHY_EXTG(0x103), 0x20);
874 b43_phy_write(dev, B43_PHY_EXTG(0x101), 0x20);
875 b43_phy_write(dev, 0x20d, 0xb8);
876 b43_phy_write(dev, B43_PHY_EXTG(0x14f), 0xc8);
877 b43_phy_write(dev, 0x70, 0x50);
878 b43_phy_write(dev, 0x1ff, 0x30);
879
880 if (0) /* TODO: condition */
881 ; /* TODO: PHY op on reg 0x217 */
882
883 if (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ)
884 b43_phy_ht_classifier(dev, B43_PHY_HT_CLASS_CTL_CCK_EN, 0);
885 else
886 b43_phy_ht_classifier(dev, B43_PHY_HT_CLASS_CTL_CCK_EN,
887 B43_PHY_HT_CLASS_CTL_CCK_EN);
888
889 b43_phy_set(dev, 0xb1, 0x91);
890 b43_phy_write(dev, 0x32f, 0x0003);
891 b43_phy_write(dev, 0x077, 0x0010);
892 b43_phy_write(dev, 0x0b4, 0x0258);
893 b43_phy_mask(dev, 0x17e, ~0x4000);
894
895 b43_phy_write(dev, 0x0b9, 0x0072);
896
897 b43_httab_write_few(dev, B43_HTTAB16(7, 0x14e), 2, 0x010f, 0x010f);
898 b43_httab_write_few(dev, B43_HTTAB16(7, 0x15e), 2, 0x010f, 0x010f);
899 b43_httab_write_few(dev, B43_HTTAB16(7, 0x16e), 2, 0x010f, 0x010f);
900
901 b43_phy_ht_afe_unk1(dev);
902
903 b43_httab_write_few(dev, B43_HTTAB16(7, 0x130), 9, 0x777, 0x111, 0x111,
904 0x777, 0x111, 0x111, 0x777, 0x111, 0x111);
905
906 b43_httab_write(dev, B43_HTTAB16(7, 0x120), 0x0777);
907 b43_httab_write(dev, B43_HTTAB16(7, 0x124), 0x0777);
908
909 b43_httab_write(dev, B43_HTTAB16(8, 0x00), 0x02);
910 b43_httab_write(dev, B43_HTTAB16(8, 0x10), 0x02);
911 b43_httab_write(dev, B43_HTTAB16(8, 0x20), 0x02);
912
913 b43_httab_write_few(dev, B43_HTTAB16(8, 0x08), 4,
914 0x8e, 0x96, 0x96, 0x96);
915 b43_httab_write_few(dev, B43_HTTAB16(8, 0x18), 4,
916 0x8f, 0x9f, 0x9f, 0x9f);
917 b43_httab_write_few(dev, B43_HTTAB16(8, 0x28), 4,
918 0x8f, 0x9f, 0x9f, 0x9f);
919
920 b43_httab_write_few(dev, B43_HTTAB16(8, 0x0c), 4, 0x2, 0x2, 0x2, 0x2);
921 b43_httab_write_few(dev, B43_HTTAB16(8, 0x1c), 4, 0x2, 0x2, 0x2, 0x2);
922 b43_httab_write_few(dev, B43_HTTAB16(8, 0x2c), 4, 0x2, 0x2, 0x2, 0x2);
923
924 b43_phy_maskset(dev, 0x0280, 0xff00, 0x3e);
925 b43_phy_maskset(dev, 0x0283, 0xff00, 0x3e);
926 b43_phy_maskset(dev, B43_PHY_OFDM(0x0141), 0xff00, 0x46);
927 b43_phy_maskset(dev, 0x0283, 0xff00, 0x40);
928
929 b43_httab_write_few(dev, B43_HTTAB16(00, 0x8), 4,
930 0x09, 0x0e, 0x13, 0x18);
931 b43_httab_write_few(dev, B43_HTTAB16(01, 0x8), 4,
932 0x09, 0x0e, 0x13, 0x18);
933 /* TODO: Did wl mean 2 instead of 40? */
934 b43_httab_write_few(dev, B43_HTTAB16(40, 0x8), 4,
935 0x09, 0x0e, 0x13, 0x18);
936
937 b43_phy_maskset(dev, B43_PHY_OFDM(0x24), 0x3f, 0xd);
938 b43_phy_maskset(dev, B43_PHY_OFDM(0x64), 0x3f, 0xd);
939 b43_phy_maskset(dev, B43_PHY_OFDM(0xa4), 0x3f, 0xd);
940
941 b43_phy_set(dev, B43_PHY_EXTG(0x060), 0x1);
942 b43_phy_set(dev, B43_PHY_EXTG(0x064), 0x1);
943 b43_phy_set(dev, B43_PHY_EXTG(0x080), 0x1);
944 b43_phy_set(dev, B43_PHY_EXTG(0x084), 0x1);
945
946 /* Copy some tables entries */
947 tmp = b43_httab_read(dev, B43_HTTAB16(7, 0x144));
948 b43_httab_write(dev, B43_HTTAB16(7, 0x14a), tmp);
949 tmp = b43_httab_read(dev, B43_HTTAB16(7, 0x154));
950 b43_httab_write(dev, B43_HTTAB16(7, 0x15a), tmp);
951 tmp = b43_httab_read(dev, B43_HTTAB16(7, 0x164));
952 b43_httab_write(dev, B43_HTTAB16(7, 0x16a), tmp);
953
954 /* Reset CCA */
955 b43_phy_force_clock(dev, true);
956 tmp = b43_phy_read(dev, B43_PHY_HT_BBCFG);
957 b43_phy_write(dev, B43_PHY_HT_BBCFG, tmp | B43_PHY_HT_BBCFG_RSTCCA);
958 b43_phy_write(dev, B43_PHY_HT_BBCFG, tmp & ~B43_PHY_HT_BBCFG_RSTCCA);
959 b43_phy_force_clock(dev, false);
960
961 b43_mac_phy_clock_set(dev, true);
962
963 b43_phy_ht_pa_override(dev, false);
964 b43_phy_ht_force_rf_sequence(dev, B43_PHY_HT_RF_SEQ_TRIG_RX2TX);
965 b43_phy_ht_force_rf_sequence(dev, B43_PHY_HT_RF_SEQ_TRIG_RST2RX);
966 b43_phy_ht_pa_override(dev, true);
967
968 /* TODO: Should we restore it? Or store it in global PHY info? */
969 b43_phy_ht_classifier(dev, 0, 0);
970 b43_phy_ht_read_clip_detection(dev, clip_state);
971
972 if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ)
973 b43_phy_ht_bphy_init(dev);
974
975 b43_httab_write_bulk(dev, B43_HTTAB32(0x1a, 0xc0),
976 B43_HTTAB_1A_C0_LATE_SIZE, b43_httab_0x1a_0xc0_late);
977
978 saved_tx_pwr_ctl = phy_ht->tx_pwr_ctl;
979 b43_phy_ht_tx_power_fix(dev);
980 b43_phy_ht_tx_power_ctl(dev, false);
981 b43_phy_ht_tx_power_ctl_idle_tssi(dev);
982 b43_phy_ht_tx_power_ctl_setup(dev);
983 b43_phy_ht_tssi_setup(dev);
984 b43_phy_ht_tx_power_ctl(dev, saved_tx_pwr_ctl);
985
986 return 0;
987 }
988
b43_phy_ht_op_free(struct b43_wldev * dev)989 static void b43_phy_ht_op_free(struct b43_wldev *dev)
990 {
991 struct b43_phy *phy = &dev->phy;
992 struct b43_phy_ht *phy_ht = phy->ht;
993
994 kfree(phy_ht);
995 phy->ht = NULL;
996 }
997
998 /* http://bcm-v4.sipsolutions.net/802.11/Radio/Switch%20Radio */
b43_phy_ht_op_software_rfkill(struct b43_wldev * dev,bool blocked)999 static void b43_phy_ht_op_software_rfkill(struct b43_wldev *dev,
1000 bool blocked)
1001 {
1002 if (b43_read32(dev, B43_MMIO_MACCTL) & B43_MACCTL_ENABLED)
1003 b43err(dev->wl, "MAC not suspended\n");
1004
1005 /* In the following PHY ops we copy wl's dummy behaviour.
1006 * TODO: Find out if reads (currently hidden in masks/masksets) are
1007 * needed and replace following ops with just writes or w&r.
1008 * Note: B43_PHY_HT_RF_CTL1 register is tricky, wrong operation can
1009 * cause delayed (!) machine lock up. */
1010 if (blocked) {
1011 b43_phy_mask(dev, B43_PHY_HT_RF_CTL1, 0);
1012 } else {
1013 b43_phy_mask(dev, B43_PHY_HT_RF_CTL1, 0);
1014 b43_phy_maskset(dev, B43_PHY_HT_RF_CTL1, 0, 0x1);
1015 b43_phy_mask(dev, B43_PHY_HT_RF_CTL1, 0);
1016 b43_phy_maskset(dev, B43_PHY_HT_RF_CTL1, 0, 0x2);
1017
1018 if (dev->phy.radio_ver == 0x2059)
1019 b43_radio_2059_init(dev);
1020 else
1021 B43_WARN_ON(1);
1022
1023 b43_switch_channel(dev, dev->phy.channel);
1024 }
1025 }
1026
b43_phy_ht_op_switch_analog(struct b43_wldev * dev,bool on)1027 static void b43_phy_ht_op_switch_analog(struct b43_wldev *dev, bool on)
1028 {
1029 if (on) {
1030 b43_phy_write(dev, B43_PHY_HT_AFE_C1, 0x00cd);
1031 b43_phy_write(dev, B43_PHY_HT_AFE_C1_OVER, 0x0000);
1032 b43_phy_write(dev, B43_PHY_HT_AFE_C2, 0x00cd);
1033 b43_phy_write(dev, B43_PHY_HT_AFE_C2_OVER, 0x0000);
1034 b43_phy_write(dev, B43_PHY_HT_AFE_C3, 0x00cd);
1035 b43_phy_write(dev, B43_PHY_HT_AFE_C3_OVER, 0x0000);
1036 } else {
1037 b43_phy_write(dev, B43_PHY_HT_AFE_C1_OVER, 0x07ff);
1038 b43_phy_write(dev, B43_PHY_HT_AFE_C1, 0x00fd);
1039 b43_phy_write(dev, B43_PHY_HT_AFE_C2_OVER, 0x07ff);
1040 b43_phy_write(dev, B43_PHY_HT_AFE_C2, 0x00fd);
1041 b43_phy_write(dev, B43_PHY_HT_AFE_C3_OVER, 0x07ff);
1042 b43_phy_write(dev, B43_PHY_HT_AFE_C3, 0x00fd);
1043 }
1044 }
1045
b43_phy_ht_op_switch_channel(struct b43_wldev * dev,unsigned int new_channel)1046 static int b43_phy_ht_op_switch_channel(struct b43_wldev *dev,
1047 unsigned int new_channel)
1048 {
1049 struct ieee80211_channel *channel = dev->wl->hw->conf.chandef.chan;
1050 enum nl80211_channel_type channel_type =
1051 cfg80211_get_chandef_type(&dev->wl->hw->conf.chandef);
1052
1053 if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
1054 if ((new_channel < 1) || (new_channel > 14))
1055 return -EINVAL;
1056 } else {
1057 return -EINVAL;
1058 }
1059
1060 return b43_phy_ht_set_channel(dev, channel, channel_type);
1061 }
1062
b43_phy_ht_op_get_default_chan(struct b43_wldev * dev)1063 static unsigned int b43_phy_ht_op_get_default_chan(struct b43_wldev *dev)
1064 {
1065 if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ)
1066 return 11;
1067 return 36;
1068 }
1069
1070 /**************************************************
1071 * R/W ops.
1072 **************************************************/
1073
b43_phy_ht_op_read(struct b43_wldev * dev,u16 reg)1074 static u16 b43_phy_ht_op_read(struct b43_wldev *dev, u16 reg)
1075 {
1076 b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
1077 return b43_read16(dev, B43_MMIO_PHY_DATA);
1078 }
1079
b43_phy_ht_op_write(struct b43_wldev * dev,u16 reg,u16 value)1080 static void b43_phy_ht_op_write(struct b43_wldev *dev, u16 reg, u16 value)
1081 {
1082 b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
1083 b43_write16(dev, B43_MMIO_PHY_DATA, value);
1084 }
1085
b43_phy_ht_op_maskset(struct b43_wldev * dev,u16 reg,u16 mask,u16 set)1086 static void b43_phy_ht_op_maskset(struct b43_wldev *dev, u16 reg, u16 mask,
1087 u16 set)
1088 {
1089 b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
1090 b43_write16(dev, B43_MMIO_PHY_DATA,
1091 (b43_read16(dev, B43_MMIO_PHY_DATA) & mask) | set);
1092 }
1093
b43_phy_ht_op_radio_read(struct b43_wldev * dev,u16 reg)1094 static u16 b43_phy_ht_op_radio_read(struct b43_wldev *dev, u16 reg)
1095 {
1096 /* HT-PHY needs 0x200 for read access */
1097 reg |= 0x200;
1098
1099 b43_write16(dev, B43_MMIO_RADIO24_CONTROL, reg);
1100 return b43_read16(dev, B43_MMIO_RADIO24_DATA);
1101 }
1102
b43_phy_ht_op_radio_write(struct b43_wldev * dev,u16 reg,u16 value)1103 static void b43_phy_ht_op_radio_write(struct b43_wldev *dev, u16 reg,
1104 u16 value)
1105 {
1106 b43_write16(dev, B43_MMIO_RADIO24_CONTROL, reg);
1107 b43_write16(dev, B43_MMIO_RADIO24_DATA, value);
1108 }
1109
1110 static enum b43_txpwr_result
b43_phy_ht_op_recalc_txpower(struct b43_wldev * dev,bool ignore_tssi)1111 b43_phy_ht_op_recalc_txpower(struct b43_wldev *dev, bool ignore_tssi)
1112 {
1113 return B43_TXPWR_RES_DONE;
1114 }
1115
b43_phy_ht_op_adjust_txpower(struct b43_wldev * dev)1116 static void b43_phy_ht_op_adjust_txpower(struct b43_wldev *dev)
1117 {
1118 }
1119
1120 /**************************************************
1121 * PHY ops struct.
1122 **************************************************/
1123
1124 const struct b43_phy_operations b43_phyops_ht = {
1125 .allocate = b43_phy_ht_op_allocate,
1126 .free = b43_phy_ht_op_free,
1127 .prepare_structs = b43_phy_ht_op_prepare_structs,
1128 .init = b43_phy_ht_op_init,
1129 .phy_read = b43_phy_ht_op_read,
1130 .phy_write = b43_phy_ht_op_write,
1131 .phy_maskset = b43_phy_ht_op_maskset,
1132 .radio_read = b43_phy_ht_op_radio_read,
1133 .radio_write = b43_phy_ht_op_radio_write,
1134 .software_rfkill = b43_phy_ht_op_software_rfkill,
1135 .switch_analog = b43_phy_ht_op_switch_analog,
1136 .switch_channel = b43_phy_ht_op_switch_channel,
1137 .get_default_chan = b43_phy_ht_op_get_default_chan,
1138 .recalc_txpower = b43_phy_ht_op_recalc_txpower,
1139 .adjust_txpower = b43_phy_ht_op_adjust_txpower,
1140 };
1141