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path: root/drivers/net/wireless/b43/phy_a.c
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-rw-r--r--drivers/net/wireless/b43/phy_a.c536
1 files changed, 536 insertions, 0 deletions
diff --git a/drivers/net/wireless/b43/phy_a.c b/drivers/net/wireless/b43/phy_a.c
new file mode 100644
index 00000000000..dd347314b76
--- /dev/null
+++ b/drivers/net/wireless/b43/phy_a.c
@@ -0,0 +1,536 @@
1/*
2
3 Broadcom B43 wireless driver
4 IEEE 802.11a PHY driver
5
6 Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
7 Copyright (c) 2005-2007 Stefano Brivio <stefano.brivio@polimi.it>
8 Copyright (c) 2005-2008 Michael Buesch <mb@bu3sch.de>
9 Copyright (c) 2005, 2006 Danny van Dyk <kugelfang@gentoo.org>
10 Copyright (c) 2005, 2006 Andreas Jaggi <andreas.jaggi@waterwave.ch>
11
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 2 of the License, or
15 (at your option) any later version.
16
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
21
22 You should have received a copy of the GNU General Public License
23 along with this program; see the file COPYING. If not, write to
24 the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
25 Boston, MA 02110-1301, USA.
26
27*/
28
29#include "b43.h"
30#include "phy_a.h"
31#include "phy_common.h"
32#include "wa.h"
33#include "tables.h"
34#include "main.h"
35
36
37/* Get the freq, as it has to be written to the device. */
38static inline u16 channel2freq_a(u8 channel)
39{
40 B43_WARN_ON(channel > 200);
41
42 return (5000 + 5 * channel);
43}
44
45static inline u16 freq_r3A_value(u16 frequency)
46{
47 u16 value;
48
49 if (frequency < 5091)
50 value = 0x0040;
51 else if (frequency < 5321)
52 value = 0x0000;
53 else if (frequency < 5806)
54 value = 0x0080;
55 else
56 value = 0x0040;
57
58 return value;
59}
60
61void b43_radio_set_tx_iq(struct b43_wldev *dev)
62{
63 static const u8 data_high[5] = { 0x00, 0x40, 0x80, 0x90, 0xD0 };
64 static const u8 data_low[5] = { 0x00, 0x01, 0x05, 0x06, 0x0A };
65 u16 tmp = b43_radio_read16(dev, 0x001E);
66 int i, j;
67
68 for (i = 0; i < 5; i++) {
69 for (j = 0; j < 5; j++) {
70 if (tmp == (data_high[i] << 4 | data_low[j])) {
71 b43_phy_write(dev, 0x0069,
72 (i - j) << 8 | 0x00C0);
73 return;
74 }
75 }
76 }
77}
78
79static void aphy_channel_switch(struct b43_wldev *dev, unsigned int channel)
80{
81 u16 freq, r8, tmp;
82
83 freq = channel2freq_a(channel);
84
85 r8 = b43_radio_read16(dev, 0x0008);
86 b43_write16(dev, 0x03F0, freq);
87 b43_radio_write16(dev, 0x0008, r8);
88
89 //TODO: write max channel TX power? to Radio 0x2D
90 tmp = b43_radio_read16(dev, 0x002E);
91 tmp &= 0x0080;
92 //TODO: OR tmp with the Power out estimation for this channel?
93 b43_radio_write16(dev, 0x002E, tmp);
94
95 if (freq >= 4920 && freq <= 5500) {
96 /*
97 * r8 = (((freq * 15 * 0xE1FC780F) >> 32) / 29) & 0x0F;
98 * = (freq * 0.025862069
99 */
100 r8 = 3 * freq / 116; /* is equal to r8 = freq * 0.025862 */
101 }
102 b43_radio_write16(dev, 0x0007, (r8 << 4) | r8);
103 b43_radio_write16(dev, 0x0020, (r8 << 4) | r8);
104 b43_radio_write16(dev, 0x0021, (r8 << 4) | r8);
105 b43_radio_write16(dev, 0x0022, (b43_radio_read16(dev, 0x0022)
106 & 0x000F) | (r8 << 4));
107 b43_radio_write16(dev, 0x002A, (r8 << 4));
108 b43_radio_write16(dev, 0x002B, (r8 << 4));
109 b43_radio_write16(dev, 0x0008, (b43_radio_read16(dev, 0x0008)
110 & 0x00F0) | (r8 << 4));
111 b43_radio_write16(dev, 0x0029, (b43_radio_read16(dev, 0x0029)
112 & 0xFF0F) | 0x00B0);
113 b43_radio_write16(dev, 0x0035, 0x00AA);
114 b43_radio_write16(dev, 0x0036, 0x0085);
115 b43_radio_write16(dev, 0x003A, (b43_radio_read16(dev, 0x003A)
116 & 0xFF20) |
117 freq_r3A_value(freq));
118 b43_radio_write16(dev, 0x003D,
119 b43_radio_read16(dev, 0x003D) & 0x00FF);
120 b43_radio_write16(dev, 0x0081, (b43_radio_read16(dev, 0x0081)
121 & 0xFF7F) | 0x0080);
122 b43_radio_write16(dev, 0x0035,
123 b43_radio_read16(dev, 0x0035) & 0xFFEF);
124 b43_radio_write16(dev, 0x0035, (b43_radio_read16(dev, 0x0035)
125 & 0xFFEF) | 0x0010);
126 b43_radio_set_tx_iq(dev);
127 //TODO: TSSI2dbm workaround
128//FIXME b43_phy_xmitpower(dev);
129}
130
131void b43_radio_init2060(struct b43_wldev *dev)
132{
133 b43_radio_write16(dev, 0x0004, 0x00C0);
134 b43_radio_write16(dev, 0x0005, 0x0008);
135 b43_radio_write16(dev, 0x0009, 0x0040);
136 b43_radio_write16(dev, 0x0005, 0x00AA);
137 b43_radio_write16(dev, 0x0032, 0x008F);
138 b43_radio_write16(dev, 0x0006, 0x008F);
139 b43_radio_write16(dev, 0x0034, 0x008F);
140 b43_radio_write16(dev, 0x002C, 0x0007);
141 b43_radio_write16(dev, 0x0082, 0x0080);
142 b43_radio_write16(dev, 0x0080, 0x0000);
143 b43_radio_write16(dev, 0x003F, 0x00DA);
144 b43_radio_write16(dev, 0x0005, b43_radio_read16(dev, 0x0005) & ~0x0008);
145 b43_radio_write16(dev, 0x0081, b43_radio_read16(dev, 0x0081) & ~0x0010);
146 b43_radio_write16(dev, 0x0081, b43_radio_read16(dev, 0x0081) & ~0x0020);
147 b43_radio_write16(dev, 0x0081, b43_radio_read16(dev, 0x0081) & ~0x0020);
148 msleep(1); /* delay 400usec */
149
150 b43_radio_write16(dev, 0x0081,
151 (b43_radio_read16(dev, 0x0081) & ~0x0020) | 0x0010);
152 msleep(1); /* delay 400usec */
153
154 b43_radio_write16(dev, 0x0005,
155 (b43_radio_read16(dev, 0x0005) & ~0x0008) | 0x0008);
156 b43_radio_write16(dev, 0x0085, b43_radio_read16(dev, 0x0085) & ~0x0010);
157 b43_radio_write16(dev, 0x0005, b43_radio_read16(dev, 0x0005) & ~0x0008);
158 b43_radio_write16(dev, 0x0081, b43_radio_read16(dev, 0x0081) & ~0x0040);
159 b43_radio_write16(dev, 0x0081,
160 (b43_radio_read16(dev, 0x0081) & ~0x0040) | 0x0040);
161 b43_radio_write16(dev, 0x0005,
162 (b43_radio_read16(dev, 0x0081) & ~0x0008) | 0x0008);
163 b43_phy_write(dev, 0x0063, 0xDDC6);
164 b43_phy_write(dev, 0x0069, 0x07BE);
165 b43_phy_write(dev, 0x006A, 0x0000);
166
167 aphy_channel_switch(dev, dev->phy.ops->get_default_chan(dev));
168
169 msleep(1);
170}
171
172static void b43_phy_rssiagc(struct b43_wldev *dev, u8 enable)
173{
174 int i;
175
176 if (dev->phy.rev < 3) {
177 if (enable)
178 for (i = 0; i < B43_TAB_RSSIAGC1_SIZE; i++) {
179 b43_ofdmtab_write16(dev,
180 B43_OFDMTAB_LNAHPFGAIN1, i, 0xFFF8);
181 b43_ofdmtab_write16(dev,
182 B43_OFDMTAB_WRSSI, i, 0xFFF8);
183 }
184 else
185 for (i = 0; i < B43_TAB_RSSIAGC1_SIZE; i++) {
186 b43_ofdmtab_write16(dev,
187 B43_OFDMTAB_LNAHPFGAIN1, i, b43_tab_rssiagc1[i]);
188 b43_ofdmtab_write16(dev,
189 B43_OFDMTAB_WRSSI, i, b43_tab_rssiagc1[i]);
190 }
191 } else {
192 if (enable)
193 for (i = 0; i < B43_TAB_RSSIAGC1_SIZE; i++)
194 b43_ofdmtab_write16(dev,
195 B43_OFDMTAB_WRSSI, i, 0x0820);
196 else
197 for (i = 0; i < B43_TAB_RSSIAGC2_SIZE; i++)
198 b43_ofdmtab_write16(dev,
199 B43_OFDMTAB_WRSSI, i, b43_tab_rssiagc2[i]);
200 }
201}
202
203static void b43_phy_ww(struct b43_wldev *dev)
204{
205 u16 b, curr_s, best_s = 0xFFFF;
206 int i;
207
208 b43_phy_write(dev, B43_PHY_CRS0,
209 b43_phy_read(dev, B43_PHY_CRS0) & ~B43_PHY_CRS0_EN);
210 b43_phy_write(dev, B43_PHY_OFDM(0x1B),
211 b43_phy_read(dev, B43_PHY_OFDM(0x1B)) | 0x1000);
212 b43_phy_write(dev, B43_PHY_OFDM(0x82),
213 (b43_phy_read(dev, B43_PHY_OFDM(0x82)) & 0xF0FF) | 0x0300);
214 b43_radio_write16(dev, 0x0009,
215 b43_radio_read16(dev, 0x0009) | 0x0080);
216 b43_radio_write16(dev, 0x0012,
217 (b43_radio_read16(dev, 0x0012) & 0xFFFC) | 0x0002);
218 b43_wa_initgains(dev);
219 b43_phy_write(dev, B43_PHY_OFDM(0xBA), 0x3ED5);
220 b = b43_phy_read(dev, B43_PHY_PWRDOWN);
221 b43_phy_write(dev, B43_PHY_PWRDOWN, (b & 0xFFF8) | 0x0005);
222 b43_radio_write16(dev, 0x0004,
223 b43_radio_read16(dev, 0x0004) | 0x0004);
224 for (i = 0x10; i <= 0x20; i++) {
225 b43_radio_write16(dev, 0x0013, i);
226 curr_s = b43_phy_read(dev, B43_PHY_OTABLEQ) & 0x00FF;
227 if (!curr_s) {
228 best_s = 0x0000;
229 break;
230 } else if (curr_s >= 0x0080)
231 curr_s = 0x0100 - curr_s;
232 if (curr_s < best_s)
233 best_s = curr_s;
234 }
235 b43_phy_write(dev, B43_PHY_PWRDOWN, b);
236 b43_radio_write16(dev, 0x0004,
237 b43_radio_read16(dev, 0x0004) & 0xFFFB);
238 b43_radio_write16(dev, 0x0013, best_s);
239 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC1_R1, 0, 0xFFEC);
240 b43_phy_write(dev, B43_PHY_OFDM(0xB7), 0x1E80);
241 b43_phy_write(dev, B43_PHY_OFDM(0xB6), 0x1C00);
242 b43_phy_write(dev, B43_PHY_OFDM(0xB5), 0x0EC0);
243 b43_phy_write(dev, B43_PHY_OFDM(0xB2), 0x00C0);
244 b43_phy_write(dev, B43_PHY_OFDM(0xB9), 0x1FFF);
245 b43_phy_write(dev, B43_PHY_OFDM(0xBB),
246 (b43_phy_read(dev, B43_PHY_OFDM(0xBB)) & 0xF000) | 0x0053);
247 b43_phy_write(dev, B43_PHY_OFDM61,
248 (b43_phy_read(dev, B43_PHY_OFDM61) & 0xFE1F) | 0x0120);
249 b43_phy_write(dev, B43_PHY_OFDM(0x13),
250 (b43_phy_read(dev, B43_PHY_OFDM(0x13)) & 0x0FFF) | 0x3000);
251 b43_phy_write(dev, B43_PHY_OFDM(0x14),
252 (b43_phy_read(dev, B43_PHY_OFDM(0x14)) & 0x0FFF) | 0x3000);
253 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC1, 6, 0x0017);
254 for (i = 0; i < 6; i++)
255 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC1, i, 0x000F);
256 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC1, 0x0D, 0x000E);
257 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC1, 0x0E, 0x0011);
258 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC1, 0x0F, 0x0013);
259 b43_phy_write(dev, B43_PHY_OFDM(0x33), 0x5030);
260 b43_phy_write(dev, B43_PHY_CRS0,
261 b43_phy_read(dev, B43_PHY_CRS0) | B43_PHY_CRS0_EN);
262}
263
264static void hardware_pctl_init_aphy(struct b43_wldev *dev)
265{
266 //TODO
267}
268
269void b43_phy_inita(struct b43_wldev *dev)
270{
271 struct ssb_bus *bus = dev->dev->bus;
272 struct b43_phy *phy = &dev->phy;
273
274 /* This lowlevel A-PHY init is also called from G-PHY init.
275 * So we must not access phy->a, if called from G-PHY code.
276 */
277 B43_WARN_ON((phy->type != B43_PHYTYPE_A) &&
278 (phy->type != B43_PHYTYPE_G));
279
280 might_sleep();
281
282 if (phy->rev >= 6) {
283 if (phy->type == B43_PHYTYPE_A)
284 b43_phy_write(dev, B43_PHY_OFDM(0x1B),
285 b43_phy_read(dev, B43_PHY_OFDM(0x1B)) & ~0x1000);
286 if (b43_phy_read(dev, B43_PHY_ENCORE) & B43_PHY_ENCORE_EN)
287 b43_phy_write(dev, B43_PHY_ENCORE,
288 b43_phy_read(dev, B43_PHY_ENCORE) | 0x0010);
289 else
290 b43_phy_write(dev, B43_PHY_ENCORE,
291 b43_phy_read(dev, B43_PHY_ENCORE) & ~0x1010);
292 }
293
294 b43_wa_all(dev);
295
296 if (phy->type == B43_PHYTYPE_A) {
297 if (phy->gmode && (phy->rev < 3))
298 b43_phy_write(dev, 0x0034,
299 b43_phy_read(dev, 0x0034) | 0x0001);
300 b43_phy_rssiagc(dev, 0);
301
302 b43_phy_write(dev, B43_PHY_CRS0,
303 b43_phy_read(dev, B43_PHY_CRS0) | B43_PHY_CRS0_EN);
304
305 b43_radio_init2060(dev);
306
307 if ((bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM) &&
308 ((bus->boardinfo.type == SSB_BOARD_BU4306) ||
309 (bus->boardinfo.type == SSB_BOARD_BU4309))) {
310 ; //TODO: A PHY LO
311 }
312
313 if (phy->rev >= 3)
314 b43_phy_ww(dev);
315
316 hardware_pctl_init_aphy(dev);
317
318 //TODO: radar detection
319 }
320
321 if ((phy->type == B43_PHYTYPE_G) &&
322 (dev->dev->bus->sprom.boardflags_lo & B43_BFL_PACTRL)) {
323 b43_phy_write(dev, B43_PHY_OFDM(0x6E),
324 (b43_phy_read(dev, B43_PHY_OFDM(0x6E))
325 & 0xE000) | 0x3CF);
326 }
327}
328
329static int b43_aphy_op_allocate(struct b43_wldev *dev)
330{
331 struct b43_phy_a *aphy;
332
333 aphy = kzalloc(sizeof(*aphy), GFP_KERNEL);
334 if (!aphy)
335 return -ENOMEM;
336 dev->phy.a = aphy;
337
338 //TODO init struct b43_phy_a
339
340 return 0;
341}
342
343static int b43_aphy_op_init(struct b43_wldev *dev)
344{
345 struct b43_phy_a *aphy = dev->phy.a;
346
347 b43_phy_inita(dev);
348 aphy->initialised = 1;
349
350 return 0;
351}
352
353static void b43_aphy_op_exit(struct b43_wldev *dev)
354{
355 struct b43_phy_a *aphy = dev->phy.a;
356
357 if (aphy->initialised) {
358 //TODO
359 aphy->initialised = 0;
360 }
361 //TODO
362 kfree(aphy);
363 dev->phy.a = NULL;
364}
365
366static inline u16 adjust_phyreg(struct b43_wldev *dev, u16 offset)
367{
368 /* OFDM registers are base-registers for the A-PHY. */
369 if ((offset & B43_PHYROUTE) == B43_PHYROUTE_OFDM_GPHY) {
370 offset &= ~B43_PHYROUTE;
371 offset |= B43_PHYROUTE_BASE;
372 }
373
374#if B43_DEBUG
375 if ((offset & B43_PHYROUTE) == B43_PHYROUTE_EXT_GPHY) {
376 /* Ext-G registers are only available on G-PHYs */
377 b43err(dev->wl, "Invalid EXT-G PHY access at "
378 "0x%04X on A-PHY\n", offset);
379 dump_stack();
380 }
381 if ((offset & B43_PHYROUTE) == B43_PHYROUTE_N_BMODE) {
382 /* N-BMODE registers are only available on N-PHYs */
383 b43err(dev->wl, "Invalid N-BMODE PHY access at "
384 "0x%04X on A-PHY\n", offset);
385 dump_stack();
386 }
387#endif /* B43_DEBUG */
388
389 return offset;
390}
391
392static u16 b43_aphy_op_read(struct b43_wldev *dev, u16 reg)
393{
394 reg = adjust_phyreg(dev, reg);
395 b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
396 return b43_read16(dev, B43_MMIO_PHY_DATA);
397}
398
399static void b43_aphy_op_write(struct b43_wldev *dev, u16 reg, u16 value)
400{
401 reg = adjust_phyreg(dev, reg);
402 b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
403 b43_write16(dev, B43_MMIO_PHY_DATA, value);
404}
405
406static u16 b43_aphy_op_radio_read(struct b43_wldev *dev, u16 reg)
407{
408 /* Register 1 is a 32-bit register. */
409 B43_WARN_ON(reg == 1);
410 /* A-PHY needs 0x40 for read access */
411 reg |= 0x40;
412
413 b43_write16(dev, B43_MMIO_RADIO_CONTROL, reg);
414 return b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
415}
416
417static void b43_aphy_op_radio_write(struct b43_wldev *dev, u16 reg, u16 value)
418{
419 /* Register 1 is a 32-bit register. */
420 B43_WARN_ON(reg == 1);
421
422 b43_write16(dev, B43_MMIO_RADIO_CONTROL, reg);
423 b43_write16(dev, B43_MMIO_RADIO_DATA_LOW, value);
424}
425
426static bool b43_aphy_op_supports_hwpctl(struct b43_wldev *dev)
427{
428 return (dev->phy.rev >= 5);
429}
430
431static void b43_aphy_op_software_rfkill(struct b43_wldev *dev,
432 enum rfkill_state state)
433{//TODO
434}
435
436static int b43_aphy_op_switch_channel(struct b43_wldev *dev,
437 unsigned int new_channel)
438{
439 if (new_channel > 200)
440 return -EINVAL;
441 aphy_channel_switch(dev, new_channel);
442
443 return 0;
444}
445
446static unsigned int b43_aphy_op_get_default_chan(struct b43_wldev *dev)
447{
448 return 36; /* Default to channel 36 */
449}
450
451static void b43_aphy_op_set_rx_antenna(struct b43_wldev *dev, int antenna)
452{//TODO
453 struct b43_phy *phy = &dev->phy;
454 u64 hf;
455 u16 tmp;
456 int autodiv = 0;
457
458 if (antenna == B43_ANTENNA_AUTO0 || antenna == B43_ANTENNA_AUTO1)
459 autodiv = 1;
460
461 hf = b43_hf_read(dev);
462 hf &= ~B43_HF_ANTDIVHELP;
463 b43_hf_write(dev, hf);
464
465 tmp = b43_phy_read(dev, B43_PHY_BBANDCFG);
466 tmp &= ~B43_PHY_BBANDCFG_RXANT;
467 tmp |= (autodiv ? B43_ANTENNA_AUTO0 : antenna)
468 << B43_PHY_BBANDCFG_RXANT_SHIFT;
469 b43_phy_write(dev, B43_PHY_BBANDCFG, tmp);
470
471 if (autodiv) {
472 tmp = b43_phy_read(dev, B43_PHY_ANTDWELL);
473 if (antenna == B43_ANTENNA_AUTO0)
474 tmp &= ~B43_PHY_ANTDWELL_AUTODIV1;
475 else
476 tmp |= B43_PHY_ANTDWELL_AUTODIV1;
477 b43_phy_write(dev, B43_PHY_ANTDWELL, tmp);
478 }
479 if (phy->rev < 3) {
480 tmp = b43_phy_read(dev, B43_PHY_ANTDWELL);
481 tmp = (tmp & 0xFF00) | 0x24;
482 b43_phy_write(dev, B43_PHY_ANTDWELL, tmp);
483 } else {
484 tmp = b43_phy_read(dev, B43_PHY_OFDM61);
485 tmp |= 0x10;
486 b43_phy_write(dev, B43_PHY_OFDM61, tmp);
487 if (phy->analog == 3) {
488 b43_phy_write(dev, B43_PHY_CLIPPWRDOWNT,
489 0x1D);
490 b43_phy_write(dev, B43_PHY_ADIVRELATED,
491 8);
492 } else {
493 b43_phy_write(dev, B43_PHY_CLIPPWRDOWNT,
494 0x3A);
495 tmp =
496 b43_phy_read(dev,
497 B43_PHY_ADIVRELATED);
498 tmp = (tmp & 0xFF00) | 8;
499 b43_phy_write(dev, B43_PHY_ADIVRELATED,
500 tmp);
501 }
502 }
503
504 hf |= B43_HF_ANTDIVHELP;
505 b43_hf_write(dev, hf);
506}
507
508static void b43_aphy_op_xmitpower(struct b43_wldev *dev)
509{//TODO
510}
511
512static void b43_aphy_op_pwork_15sec(struct b43_wldev *dev)
513{//TODO
514}
515
516static void b43_aphy_op_pwork_60sec(struct b43_wldev *dev)
517{//TODO
518}
519
520const struct b43_phy_operations b43_phyops_a = {
521 .allocate = b43_aphy_op_allocate,
522 .init = b43_aphy_op_init,
523 .exit = b43_aphy_op_exit,
524 .phy_read = b43_aphy_op_read,
525 .phy_write = b43_aphy_op_write,
526 .radio_read = b43_aphy_op_radio_read,
527 .radio_write = b43_aphy_op_radio_write,
528 .supports_hwpctl = b43_aphy_op_supports_hwpctl,
529 .software_rfkill = b43_aphy_op_software_rfkill,
530 .switch_channel = b43_aphy_op_switch_channel,
531 .get_default_chan = b43_aphy_op_get_default_chan,
532 .set_rx_antenna = b43_aphy_op_set_rx_antenna,
533 .xmitpower = b43_aphy_op_xmitpower,
534 .pwork_15sec = b43_aphy_op_pwork_15sec,
535 .pwork_60sec = b43_aphy_op_pwork_60sec,
536};