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OMAPDSS: VENC: fix NULL pointer dereference in DSS2 VENC sysfs debug attr on OMAP4
[zen-stable.git] / drivers / net / wireless / b43 / phy_lcn.c
bloba13e28ef6246af2dd344025d1b394403572fd5f3
1 /*
2
3 Broadcom B43 wireless driver
4 IEEE 802.11n LCN-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 This file incorporates work covered by the following copyright and
24 permission notice:
25
26 Copyright (c) 2010 Broadcom Corporation
27
28 Permission to use, copy, modify, and/or distribute this software for any
29 purpose with or without fee is hereby granted, provided that the above
30 copyright notice and this permission notice appear in all copies.
31 */
32
33 #include <linux/slab.h>
34
35 #include "b43.h"
36 #include "phy_lcn.h"
37 #include "tables_phy_lcn.h"
38 #include "main.h"
39
40 struct lcn_tx_gains {
41 u16 gm_gain;
42 u16 pga_gain;
43 u16 pad_gain;
44 u16 dac_gain;
45 };
46
47 struct lcn_tx_iir_filter {
48 u8 type;
49 u16 values[16];
50 };
51
52 enum lcn_sense_type {
53 B43_SENSE_TEMP,
54 B43_SENSE_VBAT,
55 };
56
57 /* In theory it's PHY common function, move if needed */
58 /* brcms_b_switch_macfreq */
59 static void b43_phy_switch_macfreq(struct b43_wldev *dev, u8 spurmode)
60 {
61 if (dev->dev->chip_id == 43224 || dev->dev->chip_id == 43225) {
62 switch (spurmode) {
63 case 2: /* 126 Mhz */
64 b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x2082);
65 b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x8);
66 break;
67 case 1: /* 123 Mhz */
68 b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x5341);
69 b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x8);
70 break;
71 default: /* 120 Mhz */
72 b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x8889);
73 b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0x8);
74 break;
75 }
76 } else if (dev->phy.type == B43_PHYTYPE_LCN) {
77 switch (spurmode) {
78 case 1: /* 82 Mhz */
79 b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0x7CE0);
80 b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0xC);
81 break;
82 default: /* 80 Mhz */
83 b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_LOW, 0xCCCD);
84 b43_write16(dev, B43_MMIO_TSF_CLK_FRAC_HIGH, 0xC);
85 break;
86 }
87 }
88 }
89
90 /**************************************************
91 * Radio 2064.
92 **************************************************/
93
94 /* wlc_lcnphy_radio_2064_channel_tune_4313 */
95 static void b43_radio_2064_channel_setup(struct b43_wldev *dev)
96 {
97 u16 save[2];
98
99 b43_radio_set(dev, 0x09d, 0x4);
100 b43_radio_write(dev, 0x09e, 0xf);
101
102 /* Channel specific values in theory, in practice always the same */
103 b43_radio_write(dev, 0x02a, 0xb);
104 b43_radio_maskset(dev, 0x030, ~0x3, 0xa);
105 b43_radio_maskset(dev, 0x091, ~0x3, 0);
106 b43_radio_maskset(dev, 0x038, ~0xf, 0x7);
107 b43_radio_maskset(dev, 0x030, ~0xc, 0x8);
108 b43_radio_maskset(dev, 0x05e, ~0xf, 0x8);
109 b43_radio_maskset(dev, 0x05e, ~0xf0, 0x80);
110 b43_radio_write(dev, 0x06c, 0x80);
111
112 save[0] = b43_radio_read(dev, 0x044);
113 save[1] = b43_radio_read(dev, 0x12b);
114
115 b43_radio_set(dev, 0x044, 0x7);
116 b43_radio_set(dev, 0x12b, 0xe);
117
118 /* TODO */
119
120 b43_radio_write(dev, 0x040, 0xfb);
121
122 b43_radio_write(dev, 0x041, 0x9a);
123 b43_radio_write(dev, 0x042, 0xa3);
124 b43_radio_write(dev, 0x043, 0x0c);
125
126 /* TODO */
127
128 b43_radio_set(dev, 0x044, 0x0c);
129 udelay(1);
130
131 b43_radio_write(dev, 0x044, save[0]);
132 b43_radio_write(dev, 0x12b, save[1]);
133
134 if (dev->phy.rev == 1) {
135 /* brcmsmac uses outdated 0x3 for 0x038 */
136 b43_radio_write(dev, 0x038, 0x0);
137 b43_radio_write(dev, 0x091, 0x7);
138 }
139 }
140
141 /* wlc_radio_2064_init */
142 static void b43_radio_2064_init(struct b43_wldev *dev)
143 {
144 if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
145 b43_radio_write(dev, 0x09c, 0x0020);
146 b43_radio_write(dev, 0x105, 0x0008);
147 } else {
148 /* TODO */
149 }
150 b43_radio_write(dev, 0x032, 0x0062);
151 b43_radio_write(dev, 0x033, 0x0019);
152 b43_radio_write(dev, 0x090, 0x0010);
153 b43_radio_write(dev, 0x010, 0x0000);
154 if (dev->phy.rev == 1) {
155 b43_radio_write(dev, 0x060, 0x007f);
156 b43_radio_write(dev, 0x061, 0x0072);
157 b43_radio_write(dev, 0x062, 0x007f);
158 }
159 b43_radio_write(dev, 0x01d, 0x0002);
160 b43_radio_write(dev, 0x01e, 0x0006);
161
162 b43_phy_write(dev, 0x4ea, 0x4688);
163 b43_phy_maskset(dev, 0x4eb, ~0x7, 0x2);
164 b43_phy_mask(dev, 0x4eb, ~0x01c0);
165 b43_phy_maskset(dev, 0x46a, 0xff00, 0x19);
166
167 b43_lcntab_write(dev, B43_LCNTAB16(0x00, 0x55), 0);
168
169 b43_radio_mask(dev, 0x05b, (u16) ~0xff02);
170 b43_radio_set(dev, 0x004, 0x40);
171 b43_radio_set(dev, 0x120, 0x10);
172 b43_radio_set(dev, 0x078, 0x80);
173 b43_radio_set(dev, 0x129, 0x2);
174 b43_radio_set(dev, 0x057, 0x1);
175 b43_radio_set(dev, 0x05b, 0x2);
176
177 /* TODO: wait for some bit to be set */
178 b43_radio_read(dev, 0x05c);
179
180 b43_radio_mask(dev, 0x05b, (u16) ~0xff02);
181 b43_radio_mask(dev, 0x057, (u16) ~0xff01);
182
183 b43_phy_write(dev, 0x933, 0x2d6b);
184 b43_phy_write(dev, 0x934, 0x2d6b);
185 b43_phy_write(dev, 0x935, 0x2d6b);
186 b43_phy_write(dev, 0x936, 0x2d6b);
187 b43_phy_write(dev, 0x937, 0x016b);
188
189 b43_radio_mask(dev, 0x057, (u16) ~0xff02);
190 b43_radio_write(dev, 0x0c2, 0x006f);
191 }
192
193 /**************************************************
194 * Various PHY ops
195 **************************************************/
196
197 /* wlc_lcnphy_toggle_afe_pwdn */
198 static void b43_phy_lcn_afe_set_unset(struct b43_wldev *dev)
199 {
200 u16 afe_ctl2 = b43_phy_read(dev, B43_PHY_LCN_AFE_CTL2);
201 u16 afe_ctl1 = b43_phy_read(dev, B43_PHY_LCN_AFE_CTL1);
202
203 b43_phy_write(dev, B43_PHY_LCN_AFE_CTL2, afe_ctl2 | 0x1);
204 b43_phy_write(dev, B43_PHY_LCN_AFE_CTL1, afe_ctl1 | 0x1);
205
206 b43_phy_write(dev, B43_PHY_LCN_AFE_CTL2, afe_ctl2 & ~0x1);
207 b43_phy_write(dev, B43_PHY_LCN_AFE_CTL1, afe_ctl1 & ~0x1);
208
209 b43_phy_write(dev, B43_PHY_LCN_AFE_CTL2, afe_ctl2);
210 b43_phy_write(dev, B43_PHY_LCN_AFE_CTL1, afe_ctl1);
211 }
212
213 /* wlc_lcnphy_get_pa_gain */
214 static u16 b43_phy_lcn_get_pa_gain(struct b43_wldev *dev)
215 {
216 return (b43_phy_read(dev, 0x4fb) & 0x7f00) >> 8;
217 }
218
219 /* wlc_lcnphy_set_dac_gain */
220 static void b43_phy_lcn_set_dac_gain(struct b43_wldev *dev, u16 dac_gain)
221 {
222 u16 dac_ctrl;
223
224 dac_ctrl = b43_phy_read(dev, 0x439);
225 dac_ctrl = dac_ctrl & 0xc7f;
226 dac_ctrl = dac_ctrl | (dac_gain << 7);
227 b43_phy_maskset(dev, 0x439, ~0xfff, dac_ctrl);
228 }
229
230 /* wlc_lcnphy_set_bbmult */
231 static void b43_phy_lcn_set_bbmult(struct b43_wldev *dev, u8 m0)
232 {
233 b43_lcntab_write(dev, B43_LCNTAB16(0x00, 0x57), m0 << 8);
234 }
235
236 /* wlc_lcnphy_clear_tx_power_offsets */
237 static void b43_phy_lcn_clear_tx_power_offsets(struct b43_wldev *dev)
238 {
239 u8 i;
240
241 if (1) { /* FIXME */
242 b43_phy_write(dev, B43_PHY_LCN_TABLE_ADDR, (0x7 << 10) | 0x340);
243 for (i = 0; i < 30; i++) {
244 b43_phy_write(dev, B43_PHY_LCN_TABLE_DATAHI, 0);
245 b43_phy_write(dev, B43_PHY_LCN_TABLE_DATALO, 0);
246 }
247 }
248
249 b43_phy_write(dev, B43_PHY_LCN_TABLE_ADDR, (0x7 << 10) | 0x80);
250 for (i = 0; i < 64; i++) {
251 b43_phy_write(dev, B43_PHY_LCN_TABLE_DATAHI, 0);
252 b43_phy_write(dev, B43_PHY_LCN_TABLE_DATALO, 0);
253 }
254 }
255
256 /* wlc_lcnphy_rev0_baseband_init */
257 static void b43_phy_lcn_rev0_baseband_init(struct b43_wldev *dev)
258 {
259 b43_radio_write(dev, 0x11c, 0);
260
261 b43_phy_write(dev, 0x43b, 0);
262 b43_phy_write(dev, 0x43c, 0);
263 b43_phy_write(dev, 0x44c, 0);
264 b43_phy_write(dev, 0x4e6, 0);
265 b43_phy_write(dev, 0x4f9, 0);
266 b43_phy_write(dev, 0x4b0, 0);
267 b43_phy_write(dev, 0x938, 0);
268 b43_phy_write(dev, 0x4b0, 0);
269 b43_phy_write(dev, 0x44e, 0);
270
271 b43_phy_set(dev, 0x567, 0x03);
272
273 b43_phy_set(dev, 0x44a, 0x44);
274 b43_phy_write(dev, 0x44a, 0x80);
275
276 if (!(dev->dev->bus_sprom->boardflags_lo & B43_BFL_FEM))
277 ; /* TODO */
278 b43_phy_maskset(dev, 0x634, ~0xff, 0xc);
279 if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_FEM) {
280 b43_phy_maskset(dev, 0x634, ~0xff, 0xa);
281 b43_phy_write(dev, 0x910, 0x1);
282 }
283
284 b43_phy_write(dev, 0x910, 0x1);
285
286 b43_phy_maskset(dev, 0x448, ~0x300, 0x100);
287 b43_phy_maskset(dev, 0x608, ~0xff, 0x17);
288 b43_phy_maskset(dev, 0x604, ~0x7ff, 0x3ea);
289 }
290
291 /* wlc_lcnphy_bu_tweaks */
292 static void b43_phy_lcn_bu_tweaks(struct b43_wldev *dev)
293 {
294 b43_phy_set(dev, 0x805, 0x1);
295
296 b43_phy_maskset(dev, 0x42f, ~0x7, 0x3);
297 b43_phy_maskset(dev, 0x030, ~0x7, 0x3);
298
299 b43_phy_write(dev, 0x414, 0x1e10);
300 b43_phy_write(dev, 0x415, 0x0640);
301
302 b43_phy_maskset(dev, 0x4df, (u16) ~0xff00, 0xf700);
303
304 b43_phy_set(dev, 0x44a, 0x44);
305 b43_phy_write(dev, 0x44a, 0x80);
306
307 b43_phy_maskset(dev, 0x434, ~0xff, 0xfd);
308 b43_phy_maskset(dev, 0x420, ~0xff, 0x10);
309
310 if (dev->dev->bus_sprom->board_rev >= 0x1204)
311 b43_radio_set(dev, 0x09b, 0xf0);
312
313 b43_phy_write(dev, 0x7d6, 0x0902);
314
315 b43_phy_maskset(dev, 0x429, ~0xf, 0x9);
316 b43_phy_maskset(dev, 0x429, ~(0x3f << 4), 0xe << 4);
317
318 if (dev->phy.rev == 1) {
319 b43_phy_maskset(dev, 0x423, ~0xff, 0x46);
320 b43_phy_maskset(dev, 0x411, ~0xff, 1);
321 b43_phy_set(dev, 0x434, 0xff); /* FIXME: update to wl */
322
323 /* TODO: wl operates on PHY 0x416, brcmsmac is outdated here */
324
325 b43_phy_maskset(dev, 0x656, ~0xf, 2);
326 b43_phy_set(dev, 0x44d, 4);
327
328 b43_radio_set(dev, 0x0f7, 0x4);
329 b43_radio_mask(dev, 0x0f1, ~0x3);
330 b43_radio_maskset(dev, 0x0f2, ~0xf8, 0x90);
331 b43_radio_maskset(dev, 0x0f3, ~0x3, 0x2);
332 b43_radio_maskset(dev, 0x0f3, ~0xf0, 0xa0);
333
334 b43_radio_set(dev, 0x11f, 0x2);
335
336 b43_phy_lcn_clear_tx_power_offsets(dev);
337
338 /* TODO: something more? */
339 }
340 }
341
342 /* wlc_lcnphy_vbat_temp_sense_setup */
343 static void b43_phy_lcn_sense_setup(struct b43_wldev *dev,
344 enum lcn_sense_type sense_type)
345 {
346 u8 auxpga_vmidcourse, auxpga_vmidfine, auxpga_gain;
347 u16 auxpga_vmid;
348 u8 tx_pwr_idx;
349 u8 i;
350
351 u16 save_radio_regs[6][2] = {
352 { 0x007, 0 }, { 0x0ff, 0 }, { 0x11f, 0 }, { 0x005, 0 },
353 { 0x025, 0 }, { 0x112, 0 },
354 };
355 u16 save_phy_regs[14][2] = {
356 { 0x503, 0 }, { 0x4a4, 0 }, { 0x4d0, 0 }, { 0x4d9, 0 },
357 { 0x4da, 0 }, { 0x4a6, 0 }, { 0x938, 0 }, { 0x939, 0 },
358 { 0x4d8, 0 }, { 0x4d0, 0 }, { 0x4d7, 0 }, { 0x4a5, 0 },
359 { 0x40d, 0 }, { 0x4a2, 0 },
360 };
361 u16 save_radio_4a4;
362
363 msleep(1);
364
365 /* Save */
366 for (i = 0; i < 6; i++)
367 save_radio_regs[i][1] = b43_radio_read(dev,
368 save_radio_regs[i][0]);
369 for (i = 0; i < 14; i++)
370 save_phy_regs[i][1] = b43_phy_read(dev, save_phy_regs[i][0]);
371 b43_mac_suspend(dev);
372 save_radio_4a4 = b43_radio_read(dev, 0x4a4);
373 /* wlc_lcnphy_set_tx_pwr_ctrl(pi, LCNPHY_TX_PWR_CTRL_OFF); */
374 tx_pwr_idx = dev->phy.lcn->tx_pwr_curr_idx;
375
376 /* Setup */
377 /* TODO: wlc_lcnphy_set_tx_pwr_by_index(pi, 127); */
378 b43_radio_set(dev, 0x007, 0x1);
379 b43_radio_set(dev, 0x0ff, 0x10);
380 b43_radio_set(dev, 0x11f, 0x4);
381
382 b43_phy_mask(dev, 0x503, ~0x1);
383 b43_phy_mask(dev, 0x503, ~0x4);
384 b43_phy_mask(dev, 0x4a4, ~0x4000);
385 b43_phy_mask(dev, 0x4a4, (u16) ~0x8000);
386 b43_phy_mask(dev, 0x4d0, ~0x20);
387 b43_phy_set(dev, 0x4a5, 0xff);
388 b43_phy_maskset(dev, 0x4a5, ~0x7000, 0x5000);
389 b43_phy_mask(dev, 0x4a5, ~0x700);
390 b43_phy_maskset(dev, 0x40d, ~0xff, 64);
391 b43_phy_maskset(dev, 0x40d, ~0x700, 0x600);
392 b43_phy_maskset(dev, 0x4a2, ~0xff, 64);
393 b43_phy_maskset(dev, 0x4a2, ~0x700, 0x600);
394 b43_phy_maskset(dev, 0x4d9, ~0x70, 0x20);
395 b43_phy_maskset(dev, 0x4d9, ~0x700, 0x300);
396 b43_phy_maskset(dev, 0x4d9, ~0x7000, 0x1000);
397 b43_phy_mask(dev, 0x4da, ~0x1000);
398 b43_phy_set(dev, 0x4da, 0x2000);
399 b43_phy_set(dev, 0x4a6, 0x8000);
400
401 b43_radio_write(dev, 0x025, 0xc);
402 b43_radio_set(dev, 0x005, 0x8);
403 b43_phy_set(dev, 0x938, 0x4);
404 b43_phy_set(dev, 0x939, 0x4);
405 b43_phy_set(dev, 0x4a4, 0x1000);
406
407 /* FIXME: don't hardcode */
408 b43_lcntab_write(dev, B43_LCNTAB16(0x8, 0x6), 0x640);
409
410 switch (sense_type) {
411 case B43_SENSE_TEMP:
412 b43_phy_set(dev, 0x4d7, 0x8);
413 b43_phy_maskset(dev, 0x4d7, ~0x7000, 0x1000);
414 auxpga_vmidcourse = 8;
415 auxpga_vmidfine = 0x4;
416 auxpga_gain = 2;
417 b43_radio_set(dev, 0x082, 0x20);
418 break;
419 case B43_SENSE_VBAT:
420 b43_phy_set(dev, 0x4d7, 0x8);
421 b43_phy_maskset(dev, 0x4d7, ~0x7000, 0x3000);
422 auxpga_vmidcourse = 7;
423 auxpga_vmidfine = 0xa;
424 auxpga_gain = 2;
425 break;
426 }
427 auxpga_vmid = (0x200 | (auxpga_vmidcourse << 4) | auxpga_vmidfine);
428
429 b43_phy_set(dev, 0x4d8, 0x1);
430 b43_phy_maskset(dev, 0x4d8, ~(0x3ff << 2), auxpga_vmid << 2);
431 b43_phy_set(dev, 0x4d8, 0x2);
432 b43_phy_maskset(dev, 0x4d8, ~(0x7 << 12), auxpga_gain << 12);
433 b43_phy_set(dev, 0x4d0, 0x20);
434 b43_radio_write(dev, 0x112, 0x6);
435
436 b43_dummy_transmission(dev, true, false);
437 /* Wait if not done */
438 if (!(b43_phy_read(dev, 0x476) & 0x8000))
439 udelay(10);
440
441 /* Restore */
442 for (i = 0; i < 6; i++)
443 b43_radio_write(dev, save_radio_regs[i][0],
444 save_radio_regs[i][1]);
445 for (i = 0; i < 14; i++)
446 b43_phy_write(dev, save_phy_regs[i][0], save_phy_regs[i][1]);
447 /* TODO: wlc_lcnphy_set_tx_pwr_by_index(tx_pwr_idx) */
448 b43_radio_write(dev, 0x4a4, save_radio_4a4);
449
450 b43_mac_enable(dev);
451
452 msleep(1);
453 }
454
455 static bool b43_phy_lcn_load_tx_iir_cck_filter(struct b43_wldev *dev,
456 u8 filter_type)
457 {
458 int i, j;
459 u16 phy_regs[] = { 0x910, 0x91e, 0x91f, 0x924, 0x925, 0x926, 0x920,
460 0x921, 0x927, 0x928, 0x929, 0x922, 0x923, 0x930,
461 0x931, 0x932 };
462 /* Table is from brcmsmac, values for type 25 were outdated, probably
463 * others need updating too */
464 struct lcn_tx_iir_filter tx_iir_filters_cck[] = {
465 { 0, { 1, 415, 1874, 64, 128, 64, 792, 1656, 64, 128, 64, 778,
466 1582, 64, 128, 64 } },
467 { 1, { 1, 402, 1847, 259, 59, 259, 671, 1794, 68, 54, 68, 608,
468 1863, 93, 167, 93 } },
469 { 2, { 1, 415, 1874, 64, 128, 64, 792, 1656, 192, 384, 192,
470 778, 1582, 64, 128, 64 } },
471 { 3, { 1, 302, 1841, 129, 258, 129, 658, 1720, 205, 410, 205,
472 754, 1760, 170, 340, 170 } },
473 { 20, { 1, 360, 1884, 242, 1734, 242, 752, 1720, 205, 1845, 205,
474 767, 1760, 256, 185, 256 } },
475 { 21, { 1, 360, 1884, 149, 1874, 149, 752, 1720, 205, 1883, 205,
476 767, 1760, 256, 273, 256 } },
477 { 22, { 1, 360, 1884, 98, 1948, 98, 752, 1720, 205, 1924, 205,
478 767, 1760, 256, 352, 256 } },
479 { 23, { 1, 350, 1884, 116, 1966, 116, 752, 1720, 205, 2008, 205,
480 767, 1760, 128, 233, 128 } },
481 { 24, { 1, 325, 1884, 32, 40, 32, 756, 1720, 256, 471, 256, 766,
482 1760, 256, 1881, 256 } },
483 { 25, { 1, 299, 1884, 51, 64, 51, 736, 1720, 256, 471, 256, 765,
484 1760, 262, 1878, 262 } },
485 /* brcmsmac version { 25, { 1, 299, 1884, 51, 64, 51, 736, 1720,
486 * 256, 471, 256, 765, 1760, 256, 1881, 256 } }, */
487 { 26, { 1, 277, 1943, 39, 117, 88, 637, 1838, 64, 192, 144, 614,
488 1864, 128, 384, 288 } },
489 { 27, { 1, 245, 1943, 49, 147, 110, 626, 1838, 256, 768, 576,
490 613, 1864, 128, 384, 288 } },
491 { 30, { 1, 302, 1841, 61, 122, 61, 658, 1720, 205, 410, 205,
492 754, 1760, 170, 340, 170 } },
493 };
494
495 for (i = 0; i < ARRAY_SIZE(tx_iir_filters_cck); i++) {
496 if (tx_iir_filters_cck[i].type == filter_type) {
497 for (j = 0; j < 16; j++)
498 b43_phy_write(dev, phy_regs[j],
499 tx_iir_filters_cck[i].values[j]);
500 return true;
501 }
502 }
503
504 return false;
505 }
506
507 static bool b43_phy_lcn_load_tx_iir_ofdm_filter(struct b43_wldev *dev,
508 u8 filter_type)
509 {
510 int i, j;
511 u16 phy_regs[] = { 0x90f, 0x900, 0x901, 0x906, 0x907, 0x908, 0x902,
512 0x903, 0x909, 0x90a, 0x90b, 0x904, 0x905, 0x90c,
513 0x90d, 0x90e };
514 struct lcn_tx_iir_filter tx_iir_filters_ofdm[] = {
515 { 0, { 0, 0xa2, 0x0, 0x100, 0x100, 0x0, 0x0, 0x0, 0x100, 0x0,
516 0x0, 0x278, 0xfea0, 0x80, 0x100, 0x80 } },
517 { 1, { 0, 374, 0xFF79, 16, 32, 16, 799, 0xFE74, 50, 32, 50, 750,
518 0xFE2B, 212, 0xFFCE, 212 } },
519 { 2, { 0, 375, 0xFF16, 37, 76, 37, 799, 0xFE74, 32, 20, 32, 748,
520 0xFEF2, 128, 0xFFE2, 128 } },
521 };
522
523 for (i = 0; i < ARRAY_SIZE(tx_iir_filters_ofdm); i++) {
524 if (tx_iir_filters_ofdm[i].type == filter_type) {
525 for (j = 0; j < 16; j++)
526 b43_phy_write(dev, phy_regs[j],
527 tx_iir_filters_ofdm[i].values[j]);
528 return true;
529 }
530 }
531
532 return false;
533 }
534
535 /* wlc_lcnphy_set_tx_gain_override */
536 static void b43_phy_lcn_set_tx_gain_override(struct b43_wldev *dev, bool enable)
537 {
538 b43_phy_maskset(dev, 0x4b0, ~(0x1 << 7), enable << 7);
539 b43_phy_maskset(dev, 0x4b0, ~(0x1 << 14), enable << 14);
540 b43_phy_maskset(dev, 0x43b, ~(0x1 << 6), enable << 6);
541 }
542
543 /* wlc_lcnphy_set_tx_gain */
544 static void b43_phy_lcn_set_tx_gain(struct b43_wldev *dev,
545 struct lcn_tx_gains *target_gains)
546 {
547 u16 pa_gain = b43_phy_lcn_get_pa_gain(dev);
548
549 b43_phy_write(dev, 0x4b5,
550 (target_gains->gm_gain | (target_gains->pga_gain << 8)));
551 b43_phy_maskset(dev, 0x4fb, ~0x7fff,
552 (target_gains->pad_gain | (pa_gain << 8)));
553 b43_phy_write(dev, 0x4fc,
554 (target_gains->gm_gain | (target_gains->pga_gain << 8)));
555 b43_phy_maskset(dev, 0x4fd, ~0x7fff,
556 (target_gains->pad_gain | (pa_gain << 8)));
557
558 b43_phy_lcn_set_dac_gain(dev, target_gains->dac_gain);
559 b43_phy_lcn_set_tx_gain_override(dev, true);
560 }
561
562 /* wlc_lcnphy_tx_pwr_ctrl_init */
563 static void b43_phy_lcn_tx_pwr_ctl_init(struct b43_wldev *dev)
564 {
565 struct lcn_tx_gains tx_gains;
566 u8 bbmult;
567
568 b43_mac_suspend(dev);
569
570 if (!dev->phy.lcn->hw_pwr_ctl_capable) {
571 if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
572 tx_gains.gm_gain = 4;
573 tx_gains.pga_gain = 12;
574 tx_gains.pad_gain = 12;
575 tx_gains.dac_gain = 0;
576 bbmult = 150;
577 } else {
578 tx_gains.gm_gain = 7;
579 tx_gains.pga_gain = 15;
580 tx_gains.pad_gain = 14;
581 tx_gains.dac_gain = 0;
582 bbmult = 150;
583 }
584 b43_phy_lcn_set_tx_gain(dev, &tx_gains);
585 b43_phy_lcn_set_bbmult(dev, bbmult);
586 b43_phy_lcn_sense_setup(dev, B43_SENSE_TEMP);
587 } else {
588 b43err(dev->wl, "TX power control not supported for this HW\n");
589 }
590
591 b43_mac_enable(dev);
592 }
593
594 /* wlc_lcnphy_txrx_spur_avoidance_mode */
595 static void b43_phy_lcn_txrx_spur_avoidance_mode(struct b43_wldev *dev,
596 bool enable)
597 {
598 if (enable) {
599 b43_phy_write(dev, 0x942, 0x7);
600 b43_phy_write(dev, 0x93b, ((1 << 13) + 23));
601 b43_phy_write(dev, 0x93c, ((1 << 13) + 1989));
602
603 b43_phy_write(dev, 0x44a, 0x084);
604 b43_phy_write(dev, 0x44a, 0x080);
605 b43_phy_write(dev, 0x6d3, 0x2222);
606 b43_phy_write(dev, 0x6d3, 0x2220);
607 } else {
608 b43_phy_write(dev, 0x942, 0x0);
609 b43_phy_write(dev, 0x93b, ((0 << 13) + 23));
610 b43_phy_write(dev, 0x93c, ((0 << 13) + 1989));
611 }
612 b43_phy_switch_macfreq(dev, enable);
613 }
614
615 /**************************************************
616 * Channel switching ops.
617 **************************************************/
618
619 /* wlc_lcnphy_set_chanspec_tweaks */
620 static void b43_phy_lcn_set_channel_tweaks(struct b43_wldev *dev, int channel)
621 {
622 struct bcma_drv_cc *cc = &dev->dev->bdev->bus->drv_cc;
623
624 b43_phy_maskset(dev, 0x448, ~0x300, (channel == 14) ? 0x200 : 0x100);
625
626 if (channel == 1 || channel == 2 || channel == 3 || channel == 4 ||
627 channel == 9 || channel == 10 || channel == 11 || channel == 12) {
628 bcma_chipco_pll_write(cc, 0x2, 0x03000c04);
629 bcma_chipco_pll_maskset(cc, 0x3, 0x00ffffff, 0x0);
630 bcma_chipco_pll_write(cc, 0x4, 0x200005c0);
631
632 bcma_cc_set32(cc, BCMA_CC_PMU_CTL, 0x400);
633
634 b43_phy_write(dev, 0x942, 0);
635
636 b43_phy_lcn_txrx_spur_avoidance_mode(dev, false);
637 b43_phy_maskset(dev, 0x424, (u16) ~0xff00, 0x1b00);
638 b43_phy_write(dev, 0x425, 0x5907);
639 } else {
640 bcma_chipco_pll_write(cc, 0x2, 0x03140c04);
641 bcma_chipco_pll_maskset(cc, 0x3, 0x00ffffff, 0x333333);
642 bcma_chipco_pll_write(cc, 0x4, 0x202c2820);
643
644 bcma_cc_set32(cc, BCMA_CC_PMU_CTL, 0x400);
645
646 b43_phy_write(dev, 0x942, 0);
647
648 b43_phy_lcn_txrx_spur_avoidance_mode(dev, true);
649 b43_phy_maskset(dev, 0x424, (u16) ~0xff00, 0x1f00);
650 b43_phy_write(dev, 0x425, 0x590a);
651 }
652
653 b43_phy_set(dev, 0x44a, 0x44);
654 b43_phy_write(dev, 0x44a, 0x80);
655 }
656
657 /* wlc_phy_chanspec_set_lcnphy */
658 static int b43_phy_lcn_set_channel(struct b43_wldev *dev,
659 struct ieee80211_channel *channel,
660 enum nl80211_channel_type channel_type)
661 {
662 static const u16 sfo_cfg[14][2] = {
663 {965, 1087}, {967, 1085}, {969, 1082}, {971, 1080}, {973, 1078},
664 {975, 1076}, {977, 1073}, {979, 1071}, {981, 1069}, {983, 1067},
665 {985, 1065}, {987, 1063}, {989, 1060}, {994, 1055},
666 };
667
668 b43_phy_lcn_set_channel_tweaks(dev, channel->hw_value);
669
670 b43_phy_set(dev, 0x44a, 0x44);
671 b43_phy_write(dev, 0x44a, 0x80);
672
673 b43_radio_2064_channel_setup(dev);
674 mdelay(1);
675
676 b43_phy_lcn_afe_set_unset(dev);
677
678 b43_phy_write(dev, 0x657, sfo_cfg[channel->hw_value - 1][0]);
679 b43_phy_write(dev, 0x658, sfo_cfg[channel->hw_value - 1][1]);
680
681 if (channel->hw_value == 14) {
682 b43_phy_maskset(dev, 0x448, ~(0x3 << 8), (2) << 8);
683 b43_phy_lcn_load_tx_iir_cck_filter(dev, 3);
684 } else {
685 b43_phy_maskset(dev, 0x448, ~(0x3 << 8), (1) << 8);
686 /* brcmsmac uses filter_type 2, we follow wl with 25 */
687 b43_phy_lcn_load_tx_iir_cck_filter(dev, 25);
688 }
689 /* brcmsmac uses filter_type 2, we follow wl with 0 */
690 b43_phy_lcn_load_tx_iir_ofdm_filter(dev, 0);
691
692 b43_phy_maskset(dev, 0x4eb, ~(0x7 << 3), 0x1 << 3);
693
694 return 0;
695 }
696
697 /**************************************************
698 * Basic PHY ops.
699 **************************************************/
700
701 static int b43_phy_lcn_op_allocate(struct b43_wldev *dev)
702 {
703 struct b43_phy_lcn *phy_lcn;
704
705 phy_lcn = kzalloc(sizeof(*phy_lcn), GFP_KERNEL);
706 if (!phy_lcn)
707 return -ENOMEM;
708 dev->phy.lcn = phy_lcn;
709
710 return 0;
711 }
712
713 static void b43_phy_lcn_op_free(struct b43_wldev *dev)
714 {
715 struct b43_phy *phy = &dev->phy;
716 struct b43_phy_lcn *phy_lcn = phy->lcn;
717
718 kfree(phy_lcn);
719 phy->lcn = NULL;
720 }
721
722 static void b43_phy_lcn_op_prepare_structs(struct b43_wldev *dev)
723 {
724 struct b43_phy *phy = &dev->phy;
725 struct b43_phy_lcn *phy_lcn = phy->lcn;
726
727 memset(phy_lcn, 0, sizeof(*phy_lcn));
728 }
729
730 /* wlc_phy_init_lcnphy */
731 static int b43_phy_lcn_op_init(struct b43_wldev *dev)
732 {
733 struct bcma_drv_cc *cc = &dev->dev->bdev->bus->drv_cc;
734
735 b43_phy_set(dev, 0x44a, 0x80);
736 b43_phy_mask(dev, 0x44a, 0x7f);
737 b43_phy_set(dev, 0x6d1, 0x80);
738 b43_phy_write(dev, 0x6d0, 0x7);
739
740 b43_phy_lcn_afe_set_unset(dev);
741
742 b43_phy_write(dev, 0x60a, 0xa0);
743 b43_phy_write(dev, 0x46a, 0x19);
744 b43_phy_maskset(dev, 0x663, 0xFF00, 0x64);
745
746 b43_phy_lcn_tables_init(dev);
747
748 b43_phy_lcn_rev0_baseband_init(dev);
749 b43_phy_lcn_bu_tweaks(dev);
750
751 if (dev->phy.radio_ver == 0x2064)
752 b43_radio_2064_init(dev);
753 else
754 B43_WARN_ON(1);
755
756 if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ)
757 b43_phy_lcn_tx_pwr_ctl_init(dev);
758
759 b43_switch_channel(dev, dev->phy.channel);
760
761 bcma_chipco_regctl_maskset(cc, 0, 0xf, 0x9);
762 bcma_chipco_chipctl_maskset(cc, 0, 0, 0x03cddddd);
763
764 /* TODO */
765
766 b43_phy_set(dev, 0x448, 0x4000);
767 udelay(100);
768 b43_phy_mask(dev, 0x448, ~0x4000);
769
770 /* TODO */
771
772 return 0;
773 }
774
775 static void b43_phy_lcn_op_software_rfkill(struct b43_wldev *dev,
776 bool blocked)
777 {
778 if (b43_read32(dev, B43_MMIO_MACCTL) & B43_MACCTL_ENABLED)
779 b43err(dev->wl, "MAC not suspended\n");
780
781 if (blocked) {
782 b43_phy_mask(dev, B43_PHY_LCN_RF_CTL2, ~0x7c00);
783 b43_phy_set(dev, B43_PHY_LCN_RF_CTL1, 0x1f00);
784
785 b43_phy_mask(dev, B43_PHY_LCN_RF_CTL5, ~0x7f00);
786 b43_phy_mask(dev, B43_PHY_LCN_RF_CTL4, ~0x2);
787 b43_phy_set(dev, B43_PHY_LCN_RF_CTL3, 0x808);
788
789 b43_phy_mask(dev, B43_PHY_LCN_RF_CTL7, ~0x8);
790 b43_phy_set(dev, B43_PHY_LCN_RF_CTL6, 0x8);
791 } else {
792 b43_phy_mask(dev, B43_PHY_LCN_RF_CTL1, ~0x1f00);
793 b43_phy_mask(dev, B43_PHY_LCN_RF_CTL3, ~0x808);
794 b43_phy_mask(dev, B43_PHY_LCN_RF_CTL6, ~0x8);
795 }
796 }
797
798 static void b43_phy_lcn_op_switch_analog(struct b43_wldev *dev, bool on)
799 {
800 if (on) {
801 b43_phy_mask(dev, B43_PHY_LCN_AFE_CTL1, ~0x7);
802 } else {
803 b43_phy_set(dev, B43_PHY_LCN_AFE_CTL2, 0x7);
804 b43_phy_set(dev, B43_PHY_LCN_AFE_CTL1, 0x7);
805 }
806 }
807
808 static int b43_phy_lcn_op_switch_channel(struct b43_wldev *dev,
809 unsigned int new_channel)
810 {
811 struct ieee80211_channel *channel = dev->wl->hw->conf.channel;
812 enum nl80211_channel_type channel_type = dev->wl->hw->conf.channel_type;
813
814 if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ) {
815 if ((new_channel < 1) || (new_channel > 14))
816 return -EINVAL;
817 } else {
818 return -EINVAL;
819 }
820
821 return b43_phy_lcn_set_channel(dev, channel, channel_type);
822 }
823
824 static unsigned int b43_phy_lcn_op_get_default_chan(struct b43_wldev *dev)
825 {
826 if (b43_current_band(dev->wl) == IEEE80211_BAND_2GHZ)
827 return 1;
828 return 36;
829 }
830
831 static enum b43_txpwr_result
832 b43_phy_lcn_op_recalc_txpower(struct b43_wldev *dev, bool ignore_tssi)
833 {
834 return B43_TXPWR_RES_DONE;
835 }
836
837 static void b43_phy_lcn_op_adjust_txpower(struct b43_wldev *dev)
838 {
839 }
840
841 /**************************************************
842 * R/W ops.
843 **************************************************/
844
845 static u16 b43_phy_lcn_op_read(struct b43_wldev *dev, u16 reg)
846 {
847 b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
848 return b43_read16(dev, B43_MMIO_PHY_DATA);
849 }
850
851 static void b43_phy_lcn_op_write(struct b43_wldev *dev, u16 reg, u16 value)
852 {
853 b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
854 b43_write16(dev, B43_MMIO_PHY_DATA, value);
855 }
856
857 static void b43_phy_lcn_op_maskset(struct b43_wldev *dev, u16 reg, u16 mask,
858 u16 set)
859 {
860 b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
861 b43_write16(dev, B43_MMIO_PHY_DATA,
862 (b43_read16(dev, B43_MMIO_PHY_DATA) & mask) | set);
863 }
864
865 static u16 b43_phy_lcn_op_radio_read(struct b43_wldev *dev, u16 reg)
866 {
867 /* LCN-PHY needs 0x200 for read access */
868 reg |= 0x200;
869
870 b43_write16(dev, B43_MMIO_RADIO24_CONTROL, reg);
871 return b43_read16(dev, B43_MMIO_RADIO24_DATA);
872 }
873
874 static void b43_phy_lcn_op_radio_write(struct b43_wldev *dev, u16 reg,
875 u16 value)
876 {
877 b43_write16(dev, B43_MMIO_RADIO24_CONTROL, reg);
878 b43_write16(dev, B43_MMIO_RADIO24_DATA, value);
879 }
880
881 /**************************************************
882 * PHY ops struct.
883 **************************************************/
884
885 const struct b43_phy_operations b43_phyops_lcn = {
886 .allocate = b43_phy_lcn_op_allocate,
887 .free = b43_phy_lcn_op_free,
888 .prepare_structs = b43_phy_lcn_op_prepare_structs,
889 .init = b43_phy_lcn_op_init,
890 .phy_read = b43_phy_lcn_op_read,
891 .phy_write = b43_phy_lcn_op_write,
892 .phy_maskset = b43_phy_lcn_op_maskset,
893 .radio_read = b43_phy_lcn_op_radio_read,
894 .radio_write = b43_phy_lcn_op_radio_write,
895 .software_rfkill = b43_phy_lcn_op_software_rfkill,
896 .switch_analog = b43_phy_lcn_op_switch_analog,
897 .switch_channel = b43_phy_lcn_op_switch_channel,
898 .get_default_chan = b43_phy_lcn_op_get_default_chan,
899 .recalc_txpower = b43_phy_lcn_op_recalc_txpower,
900 .adjust_txpower = b43_phy_lcn_op_adjust_txpower,
901 };