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Commit | Line | Data |
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e4d6b795 MB |
1 | /* |
2 | ||
3 | Broadcom B43 wireless driver | |
4 | ||
5 | G PHY LO (LocalOscillator) Measuring and Control routines | |
6 | ||
7 | Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>, | |
1f21ad2a | 8 | Copyright (c) 2005, 2006 Stefano Brivio <stefano.brivio@polimi.it> |
eb032b98 | 9 | Copyright (c) 2005-2007 Michael Buesch <m@bues.ch> |
e4d6b795 MB |
10 | Copyright (c) 2005, 2006 Danny van Dyk <kugelfang@gentoo.org> |
11 | Copyright (c) 2005, 2006 Andreas Jaggi <andreas.jaggi@waterwave.ch> | |
12 | ||
13 | This program is free software; you can redistribute it and/or modify | |
14 | it under the terms of the GNU General Public License as published by | |
15 | the Free Software Foundation; either version 2 of the License, or | |
16 | (at your option) any later version. | |
17 | ||
18 | This program is distributed in the hope that it will be useful, | |
19 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | GNU General Public License for more details. | |
22 | ||
23 | You should have received a copy of the GNU General Public License | |
24 | along with this program; see the file COPYING. If not, write to | |
25 | the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor, | |
26 | Boston, MA 02110-1301, USA. | |
27 | ||
28 | */ | |
29 | ||
30 | #include "b43.h" | |
31 | #include "lo.h" | |
ef1a628d | 32 | #include "phy_g.h" |
e4d6b795 MB |
33 | #include "main.h" |
34 | ||
35 | #include <linux/delay.h> | |
36 | #include <linux/sched.h> | |
5a0e3ad6 | 37 | #include <linux/slab.h> |
e4d6b795 MB |
38 | |
39 | ||
99da185a JD |
40 | static struct b43_lo_calib *b43_find_lo_calib(struct b43_txpower_lo_control *lo, |
41 | const struct b43_bbatt *bbatt, | |
f5eda47f MB |
42 | const struct b43_rfatt *rfatt) |
43 | { | |
44 | struct b43_lo_calib *c; | |
45 | ||
46 | list_for_each_entry(c, &lo->calib_list, list) { | |
47 | if (!b43_compare_bbatt(&c->bbatt, bbatt)) | |
48 | continue; | |
49 | if (!b43_compare_rfatt(&c->rfatt, rfatt)) | |
50 | continue; | |
51 | return c; | |
52 | } | |
e4d6b795 | 53 | |
f5eda47f MB |
54 | return NULL; |
55 | } | |
e4d6b795 MB |
56 | |
57 | /* Write the LocalOscillator Control (adjust) value-pair. */ | |
58 | static void b43_lo_write(struct b43_wldev *dev, struct b43_loctl *control) | |
59 | { | |
60 | struct b43_phy *phy = &dev->phy; | |
61 | u16 value; | |
e4d6b795 MB |
62 | |
63 | if (B43_DEBUG) { | |
64 | if (unlikely(abs(control->i) > 16 || abs(control->q) > 16)) { | |
65 | b43dbg(dev->wl, "Invalid LO control pair " | |
66 | "(I: %d, Q: %d)\n", control->i, control->q); | |
67 | dump_stack(); | |
68 | return; | |
69 | } | |
70 | } | |
f4440e8a | 71 | B43_WARN_ON(phy->type != B43_PHYTYPE_G); |
e4d6b795 MB |
72 | |
73 | value = (u8) (control->q); | |
74 | value |= ((u8) (control->i)) << 8; | |
f4440e8a | 75 | b43_phy_write(dev, B43_PHY_LO_CTL, value); |
e4d6b795 MB |
76 | } |
77 | ||
e4d6b795 MB |
78 | static u16 lo_measure_feedthrough(struct b43_wldev *dev, |
79 | u16 lna, u16 pga, u16 trsw_rx) | |
80 | { | |
81 | struct b43_phy *phy = &dev->phy; | |
82 | u16 rfover; | |
83 | u16 feedthrough; | |
84 | ||
85 | if (phy->gmode) { | |
86 | lna <<= B43_PHY_RFOVERVAL_LNA_SHIFT; | |
87 | pga <<= B43_PHY_RFOVERVAL_PGA_SHIFT; | |
88 | ||
89 | B43_WARN_ON(lna & ~B43_PHY_RFOVERVAL_LNA); | |
90 | B43_WARN_ON(pga & ~B43_PHY_RFOVERVAL_PGA); | |
91 | /*FIXME This assertion fails B43_WARN_ON(trsw_rx & ~(B43_PHY_RFOVERVAL_TRSWRX | | |
92 | B43_PHY_RFOVERVAL_BW)); | |
93 | */ | |
94 | trsw_rx &= (B43_PHY_RFOVERVAL_TRSWRX | B43_PHY_RFOVERVAL_BW); | |
95 | ||
96 | /* Construct the RF Override Value */ | |
97 | rfover = B43_PHY_RFOVERVAL_UNK; | |
98 | rfover |= pga; | |
99 | rfover |= lna; | |
100 | rfover |= trsw_rx; | |
dedb1eb9 | 101 | if ((dev->sdev->bus->sprom.boardflags_lo & B43_BFL_EXTLNA) |
95de2841 | 102 | && phy->rev > 6) |
e4d6b795 MB |
103 | rfover |= B43_PHY_RFOVERVAL_EXTLNA; |
104 | ||
105 | b43_phy_write(dev, B43_PHY_PGACTL, 0xE300); | |
106 | b43_phy_write(dev, B43_PHY_RFOVERVAL, rfover); | |
107 | udelay(10); | |
108 | rfover |= B43_PHY_RFOVERVAL_BW_LBW; | |
109 | b43_phy_write(dev, B43_PHY_RFOVERVAL, rfover); | |
110 | udelay(10); | |
111 | rfover |= B43_PHY_RFOVERVAL_BW_LPF; | |
112 | b43_phy_write(dev, B43_PHY_RFOVERVAL, rfover); | |
113 | udelay(10); | |
114 | b43_phy_write(dev, B43_PHY_PGACTL, 0xF300); | |
115 | } else { | |
116 | pga |= B43_PHY_PGACTL_UNKNOWN; | |
117 | b43_phy_write(dev, B43_PHY_PGACTL, pga); | |
118 | udelay(10); | |
119 | pga |= B43_PHY_PGACTL_LOWBANDW; | |
120 | b43_phy_write(dev, B43_PHY_PGACTL, pga); | |
121 | udelay(10); | |
122 | pga |= B43_PHY_PGACTL_LPF; | |
123 | b43_phy_write(dev, B43_PHY_PGACTL, pga); | |
124 | } | |
125 | udelay(21); | |
126 | feedthrough = b43_phy_read(dev, B43_PHY_LO_LEAKAGE); | |
127 | ||
128 | /* This is a good place to check if we need to relax a bit, | |
129 | * as this is the main function called regularly | |
130 | * in the LO calibration. */ | |
131 | cond_resched(); | |
132 | ||
133 | return feedthrough; | |
134 | } | |
135 | ||
136 | /* TXCTL Register and Value Table. | |
137 | * Returns the "TXCTL Register". | |
138 | * "value" is the "TXCTL Value". | |
139 | * "pad_mix_gain" is the PAD Mixer Gain. | |
140 | */ | |
141 | static u16 lo_txctl_register_table(struct b43_wldev *dev, | |
99da185a | 142 | u16 *value, u16 *pad_mix_gain) |
e4d6b795 MB |
143 | { |
144 | struct b43_phy *phy = &dev->phy; | |
145 | u16 reg, v, padmix; | |
146 | ||
147 | if (phy->type == B43_PHYTYPE_B) { | |
148 | v = 0x30; | |
149 | if (phy->radio_rev <= 5) { | |
150 | reg = 0x43; | |
151 | padmix = 0; | |
152 | } else { | |
153 | reg = 0x52; | |
154 | padmix = 5; | |
155 | } | |
156 | } else { | |
157 | if (phy->rev >= 2 && phy->radio_rev == 8) { | |
158 | reg = 0x43; | |
159 | v = 0x10; | |
160 | padmix = 2; | |
161 | } else { | |
162 | reg = 0x52; | |
163 | v = 0x30; | |
164 | padmix = 5; | |
165 | } | |
166 | } | |
167 | if (value) | |
168 | *value = v; | |
169 | if (pad_mix_gain) | |
170 | *pad_mix_gain = padmix; | |
171 | ||
172 | return reg; | |
173 | } | |
174 | ||
175 | static void lo_measure_txctl_values(struct b43_wldev *dev) | |
176 | { | |
177 | struct b43_phy *phy = &dev->phy; | |
ef1a628d MB |
178 | struct b43_phy_g *gphy = phy->g; |
179 | struct b43_txpower_lo_control *lo = gphy->lo_control; | |
e4d6b795 MB |
180 | u16 reg, mask; |
181 | u16 trsw_rx, pga; | |
182 | u16 radio_pctl_reg; | |
183 | ||
184 | static const u8 tx_bias_values[] = { | |
185 | 0x09, 0x08, 0x0A, 0x01, 0x00, | |
186 | 0x02, 0x05, 0x04, 0x06, | |
187 | }; | |
188 | static const u8 tx_magn_values[] = { | |
189 | 0x70, 0x40, | |
190 | }; | |
191 | ||
192 | if (!has_loopback_gain(phy)) { | |
193 | radio_pctl_reg = 6; | |
194 | trsw_rx = 2; | |
195 | pga = 0; | |
196 | } else { | |
197 | int lb_gain; /* Loopback gain (in dB) */ | |
198 | ||
199 | trsw_rx = 0; | |
ef1a628d | 200 | lb_gain = gphy->max_lb_gain / 2; |
e4d6b795 MB |
201 | if (lb_gain > 10) { |
202 | radio_pctl_reg = 0; | |
203 | pga = abs(10 - lb_gain) / 6; | |
cdbf0846 | 204 | pga = clamp_val(pga, 0, 15); |
e4d6b795 MB |
205 | } else { |
206 | int cmp_val; | |
207 | int tmp; | |
208 | ||
209 | pga = 0; | |
210 | cmp_val = 0x24; | |
211 | if ((phy->rev >= 2) && | |
212 | (phy->radio_ver == 0x2050) && (phy->radio_rev == 8)) | |
213 | cmp_val = 0x3C; | |
214 | tmp = lb_gain; | |
215 | if ((10 - lb_gain) < cmp_val) | |
216 | tmp = (10 - lb_gain); | |
217 | if (tmp < 0) | |
218 | tmp += 6; | |
219 | else | |
220 | tmp += 3; | |
221 | cmp_val /= 4; | |
222 | tmp /= 4; | |
223 | if (tmp >= cmp_val) | |
224 | radio_pctl_reg = cmp_val; | |
225 | else | |
226 | radio_pctl_reg = tmp; | |
227 | } | |
228 | } | |
5f9724dd | 229 | b43_radio_maskset(dev, 0x43, 0xFFF0, radio_pctl_reg); |
ef1a628d | 230 | b43_gphy_set_baseband_attenuation(dev, 2); |
e4d6b795 MB |
231 | |
232 | reg = lo_txctl_register_table(dev, &mask, NULL); | |
233 | mask = ~mask; | |
3718582a | 234 | b43_radio_mask(dev, reg, mask); |
e4d6b795 MB |
235 | |
236 | if (has_tx_magnification(phy)) { | |
237 | int i, j; | |
238 | int feedthrough; | |
239 | int min_feedth = 0xFFFF; | |
240 | u8 tx_magn, tx_bias; | |
241 | ||
242 | for (i = 0; i < ARRAY_SIZE(tx_magn_values); i++) { | |
243 | tx_magn = tx_magn_values[i]; | |
5f9724dd | 244 | b43_radio_maskset(dev, 0x52, 0xFF0F, tx_magn); |
e4d6b795 MB |
245 | for (j = 0; j < ARRAY_SIZE(tx_bias_values); j++) { |
246 | tx_bias = tx_bias_values[j]; | |
5f9724dd | 247 | b43_radio_maskset(dev, 0x52, 0xFFF0, tx_bias); |
e4d6b795 MB |
248 | feedthrough = |
249 | lo_measure_feedthrough(dev, 0, pga, | |
250 | trsw_rx); | |
251 | if (feedthrough < min_feedth) { | |
252 | lo->tx_bias = tx_bias; | |
253 | lo->tx_magn = tx_magn; | |
254 | min_feedth = feedthrough; | |
255 | } | |
256 | if (lo->tx_bias == 0) | |
257 | break; | |
258 | } | |
259 | b43_radio_write16(dev, 0x52, | |
260 | (b43_radio_read16(dev, 0x52) | |
261 | & 0xFF00) | lo->tx_bias | lo-> | |
262 | tx_magn); | |
263 | } | |
264 | } else { | |
265 | lo->tx_magn = 0; | |
266 | lo->tx_bias = 0; | |
3718582a | 267 | b43_radio_mask(dev, 0x52, 0xFFF0); /* TX bias == 0 */ |
e4d6b795 | 268 | } |
f5eda47f | 269 | lo->txctl_measured_time = jiffies; |
e4d6b795 MB |
270 | } |
271 | ||
272 | static void lo_read_power_vector(struct b43_wldev *dev) | |
273 | { | |
274 | struct b43_phy *phy = &dev->phy; | |
ef1a628d MB |
275 | struct b43_phy_g *gphy = phy->g; |
276 | struct b43_txpower_lo_control *lo = gphy->lo_control; | |
f5eda47f | 277 | int i; |
e4d6b795 MB |
278 | u64 tmp; |
279 | u64 power_vector = 0; | |
e4d6b795 MB |
280 | |
281 | for (i = 0; i < 8; i += 2) { | |
282 | tmp = b43_shm_read16(dev, B43_SHM_SHARED, 0x310 + i); | |
e4d6b795 MB |
283 | power_vector |= (tmp << (i * 8)); |
284 | /* Clear the vector on the device. */ | |
285 | b43_shm_write16(dev, B43_SHM_SHARED, 0x310 + i, 0); | |
286 | } | |
e4d6b795 MB |
287 | if (power_vector) |
288 | lo->power_vector = power_vector; | |
f5eda47f | 289 | lo->pwr_vec_read_time = jiffies; |
e4d6b795 MB |
290 | } |
291 | ||
292 | /* 802.11/LO/GPHY/MeasuringGains */ | |
293 | static void lo_measure_gain_values(struct b43_wldev *dev, | |
294 | s16 max_rx_gain, int use_trsw_rx) | |
295 | { | |
296 | struct b43_phy *phy = &dev->phy; | |
ef1a628d | 297 | struct b43_phy_g *gphy = phy->g; |
e4d6b795 MB |
298 | u16 tmp; |
299 | ||
300 | if (max_rx_gain < 0) | |
301 | max_rx_gain = 0; | |
302 | ||
303 | if (has_loopback_gain(phy)) { | |
304 | int trsw_rx = 0; | |
305 | int trsw_rx_gain; | |
306 | ||
307 | if (use_trsw_rx) { | |
ef1a628d | 308 | trsw_rx_gain = gphy->trsw_rx_gain / 2; |
e4d6b795 MB |
309 | if (max_rx_gain >= trsw_rx_gain) { |
310 | trsw_rx_gain = max_rx_gain - trsw_rx_gain; | |
311 | trsw_rx = 0x20; | |
312 | } | |
313 | } else | |
314 | trsw_rx_gain = max_rx_gain; | |
315 | if (trsw_rx_gain < 9) { | |
ef1a628d | 316 | gphy->lna_lod_gain = 0; |
e4d6b795 | 317 | } else { |
ef1a628d | 318 | gphy->lna_lod_gain = 1; |
e4d6b795 MB |
319 | trsw_rx_gain -= 8; |
320 | } | |
cdbf0846 | 321 | trsw_rx_gain = clamp_val(trsw_rx_gain, 0, 0x2D); |
ef1a628d MB |
322 | gphy->pga_gain = trsw_rx_gain / 3; |
323 | if (gphy->pga_gain >= 5) { | |
324 | gphy->pga_gain -= 5; | |
325 | gphy->lna_gain = 2; | |
e4d6b795 | 326 | } else |
ef1a628d | 327 | gphy->lna_gain = 0; |
e4d6b795 | 328 | } else { |
ef1a628d MB |
329 | gphy->lna_gain = 0; |
330 | gphy->trsw_rx_gain = 0x20; | |
e4d6b795 | 331 | if (max_rx_gain >= 0x14) { |
ef1a628d MB |
332 | gphy->lna_lod_gain = 1; |
333 | gphy->pga_gain = 2; | |
e4d6b795 | 334 | } else if (max_rx_gain >= 0x12) { |
ef1a628d MB |
335 | gphy->lna_lod_gain = 1; |
336 | gphy->pga_gain = 1; | |
e4d6b795 | 337 | } else if (max_rx_gain >= 0xF) { |
ef1a628d MB |
338 | gphy->lna_lod_gain = 1; |
339 | gphy->pga_gain = 0; | |
e4d6b795 | 340 | } else { |
ef1a628d MB |
341 | gphy->lna_lod_gain = 0; |
342 | gphy->pga_gain = 0; | |
e4d6b795 MB |
343 | } |
344 | } | |
345 | ||
346 | tmp = b43_radio_read16(dev, 0x7A); | |
ef1a628d | 347 | if (gphy->lna_lod_gain == 0) |
e4d6b795 MB |
348 | tmp &= ~0x0008; |
349 | else | |
350 | tmp |= 0x0008; | |
351 | b43_radio_write16(dev, 0x7A, tmp); | |
352 | } | |
353 | ||
354 | struct lo_g_saved_values { | |
355 | u8 old_channel; | |
356 | ||
357 | /* Core registers */ | |
358 | u16 reg_3F4; | |
359 | u16 reg_3E2; | |
360 | ||
361 | /* PHY registers */ | |
362 | u16 phy_lo_mask; | |
363 | u16 phy_extg_01; | |
364 | u16 phy_dacctl_hwpctl; | |
365 | u16 phy_dacctl; | |
5250703e | 366 | u16 phy_cck_14; |
e4d6b795 MB |
367 | u16 phy_hpwr_tssictl; |
368 | u16 phy_analogover; | |
369 | u16 phy_analogoverval; | |
370 | u16 phy_rfover; | |
371 | u16 phy_rfoverval; | |
372 | u16 phy_classctl; | |
5250703e | 373 | u16 phy_cck_3E; |
e4d6b795 MB |
374 | u16 phy_crs0; |
375 | u16 phy_pgactl; | |
5250703e | 376 | u16 phy_cck_2A; |
e4d6b795 | 377 | u16 phy_syncctl; |
5250703e MB |
378 | u16 phy_cck_30; |
379 | u16 phy_cck_06; | |
e4d6b795 MB |
380 | |
381 | /* Radio registers */ | |
382 | u16 radio_43; | |
383 | u16 radio_7A; | |
384 | u16 radio_52; | |
385 | }; | |
386 | ||
387 | static void lo_measure_setup(struct b43_wldev *dev, | |
388 | struct lo_g_saved_values *sav) | |
389 | { | |
dedb1eb9 | 390 | struct ssb_sprom *sprom = &dev->sdev->bus->sprom; |
e4d6b795 | 391 | struct b43_phy *phy = &dev->phy; |
ef1a628d MB |
392 | struct b43_phy_g *gphy = phy->g; |
393 | struct b43_txpower_lo_control *lo = gphy->lo_control; | |
e4d6b795 MB |
394 | u16 tmp; |
395 | ||
ef1a628d | 396 | if (b43_has_hardware_pctl(dev)) { |
e4d6b795 MB |
397 | sav->phy_lo_mask = b43_phy_read(dev, B43_PHY_LO_MASK); |
398 | sav->phy_extg_01 = b43_phy_read(dev, B43_PHY_EXTG(0x01)); | |
399 | sav->phy_dacctl_hwpctl = b43_phy_read(dev, B43_PHY_DACCTL); | |
5250703e | 400 | sav->phy_cck_14 = b43_phy_read(dev, B43_PHY_CCK(0x14)); |
e4d6b795 MB |
401 | sav->phy_hpwr_tssictl = b43_phy_read(dev, B43_PHY_HPWR_TSSICTL); |
402 | ||
e59be0b5 MB |
403 | b43_phy_set(dev, B43_PHY_HPWR_TSSICTL, 0x100); |
404 | b43_phy_set(dev, B43_PHY_EXTG(0x01), 0x40); | |
405 | b43_phy_set(dev, B43_PHY_DACCTL, 0x40); | |
406 | b43_phy_set(dev, B43_PHY_CCK(0x14), 0x200); | |
e4d6b795 MB |
407 | } |
408 | if (phy->type == B43_PHYTYPE_B && | |
409 | phy->radio_ver == 0x2050 && phy->radio_rev < 6) { | |
5250703e MB |
410 | b43_phy_write(dev, B43_PHY_CCK(0x16), 0x410); |
411 | b43_phy_write(dev, B43_PHY_CCK(0x17), 0x820); | |
e4d6b795 | 412 | } |
e4d6b795 MB |
413 | if (phy->rev >= 2) { |
414 | sav->phy_analogover = b43_phy_read(dev, B43_PHY_ANALOGOVER); | |
415 | sav->phy_analogoverval = | |
416 | b43_phy_read(dev, B43_PHY_ANALOGOVERVAL); | |
417 | sav->phy_rfover = b43_phy_read(dev, B43_PHY_RFOVER); | |
418 | sav->phy_rfoverval = b43_phy_read(dev, B43_PHY_RFOVERVAL); | |
419 | sav->phy_classctl = b43_phy_read(dev, B43_PHY_CLASSCTL); | |
5250703e | 420 | sav->phy_cck_3E = b43_phy_read(dev, B43_PHY_CCK(0x3E)); |
e4d6b795 MB |
421 | sav->phy_crs0 = b43_phy_read(dev, B43_PHY_CRS0); |
422 | ||
ac1ea395 MB |
423 | b43_phy_mask(dev, B43_PHY_CLASSCTL, 0xFFFC); |
424 | b43_phy_mask(dev, B43_PHY_CRS0, 0x7FFF); | |
e59be0b5 | 425 | b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0003); |
ac1ea395 | 426 | b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFC); |
e4d6b795 MB |
427 | if (phy->type == B43_PHYTYPE_G) { |
428 | if ((phy->rev >= 7) && | |
95de2841 | 429 | (sprom->boardflags_lo & B43_BFL_EXTLNA)) { |
e4d6b795 MB |
430 | b43_phy_write(dev, B43_PHY_RFOVER, 0x933); |
431 | } else { | |
432 | b43_phy_write(dev, B43_PHY_RFOVER, 0x133); | |
433 | } | |
434 | } else { | |
435 | b43_phy_write(dev, B43_PHY_RFOVER, 0); | |
436 | } | |
5250703e | 437 | b43_phy_write(dev, B43_PHY_CCK(0x3E), 0); |
e4d6b795 MB |
438 | } |
439 | sav->reg_3F4 = b43_read16(dev, 0x3F4); | |
440 | sav->reg_3E2 = b43_read16(dev, 0x3E2); | |
441 | sav->radio_43 = b43_radio_read16(dev, 0x43); | |
442 | sav->radio_7A = b43_radio_read16(dev, 0x7A); | |
443 | sav->phy_pgactl = b43_phy_read(dev, B43_PHY_PGACTL); | |
5250703e | 444 | sav->phy_cck_2A = b43_phy_read(dev, B43_PHY_CCK(0x2A)); |
e4d6b795 MB |
445 | sav->phy_syncctl = b43_phy_read(dev, B43_PHY_SYNCCTL); |
446 | sav->phy_dacctl = b43_phy_read(dev, B43_PHY_DACCTL); | |
447 | ||
448 | if (!has_tx_magnification(phy)) { | |
449 | sav->radio_52 = b43_radio_read16(dev, 0x52); | |
450 | sav->radio_52 &= 0x00F0; | |
451 | } | |
452 | if (phy->type == B43_PHYTYPE_B) { | |
5250703e MB |
453 | sav->phy_cck_30 = b43_phy_read(dev, B43_PHY_CCK(0x30)); |
454 | sav->phy_cck_06 = b43_phy_read(dev, B43_PHY_CCK(0x06)); | |
455 | b43_phy_write(dev, B43_PHY_CCK(0x30), 0x00FF); | |
456 | b43_phy_write(dev, B43_PHY_CCK(0x06), 0x3F3F); | |
e4d6b795 MB |
457 | } else { |
458 | b43_write16(dev, 0x3E2, b43_read16(dev, 0x3E2) | |
459 | | 0x8000); | |
460 | } | |
461 | b43_write16(dev, 0x3F4, b43_read16(dev, 0x3F4) | |
462 | & 0xF000); | |
463 | ||
464 | tmp = | |
5250703e | 465 | (phy->type == B43_PHYTYPE_G) ? B43_PHY_LO_MASK : B43_PHY_CCK(0x2E); |
e4d6b795 MB |
466 | b43_phy_write(dev, tmp, 0x007F); |
467 | ||
468 | tmp = sav->phy_syncctl; | |
469 | b43_phy_write(dev, B43_PHY_SYNCCTL, tmp & 0xFF7F); | |
470 | tmp = sav->radio_7A; | |
471 | b43_radio_write16(dev, 0x007A, tmp & 0xFFF0); | |
472 | ||
5250703e | 473 | b43_phy_write(dev, B43_PHY_CCK(0x2A), 0x8A3); |
e4d6b795 MB |
474 | if (phy->type == B43_PHYTYPE_G || |
475 | (phy->type == B43_PHYTYPE_B && | |
476 | phy->radio_ver == 0x2050 && phy->radio_rev >= 6)) { | |
5250703e | 477 | b43_phy_write(dev, B43_PHY_CCK(0x2B), 0x1003); |
e4d6b795 | 478 | } else |
5250703e | 479 | b43_phy_write(dev, B43_PHY_CCK(0x2B), 0x0802); |
e4d6b795 | 480 | if (phy->rev >= 2) |
2f19c287 | 481 | b43_dummy_transmission(dev, false, true); |
ef1a628d | 482 | b43_gphy_channel_switch(dev, 6, 0); |
e4d6b795 MB |
483 | b43_radio_read16(dev, 0x51); /* dummy read */ |
484 | if (phy->type == B43_PHYTYPE_G) | |
5250703e | 485 | b43_phy_write(dev, B43_PHY_CCK(0x2F), 0); |
f5eda47f MB |
486 | |
487 | /* Re-measure the txctl values, if needed. */ | |
488 | if (time_before(lo->txctl_measured_time, | |
489 | jiffies - B43_LO_TXCTL_EXPIRE)) | |
e4d6b795 | 490 | lo_measure_txctl_values(dev); |
f5eda47f | 491 | |
e4d6b795 MB |
492 | if (phy->type == B43_PHYTYPE_G && phy->rev >= 3) { |
493 | b43_phy_write(dev, B43_PHY_LO_MASK, 0xC078); | |
494 | } else { | |
495 | if (phy->type == B43_PHYTYPE_B) | |
5250703e | 496 | b43_phy_write(dev, B43_PHY_CCK(0x2E), 0x8078); |
e4d6b795 MB |
497 | else |
498 | b43_phy_write(dev, B43_PHY_LO_MASK, 0x8078); | |
499 | } | |
500 | } | |
501 | ||
502 | static void lo_measure_restore(struct b43_wldev *dev, | |
503 | struct lo_g_saved_values *sav) | |
504 | { | |
505 | struct b43_phy *phy = &dev->phy; | |
ef1a628d | 506 | struct b43_phy_g *gphy = phy->g; |
e4d6b795 MB |
507 | u16 tmp; |
508 | ||
509 | if (phy->rev >= 2) { | |
510 | b43_phy_write(dev, B43_PHY_PGACTL, 0xE300); | |
ef1a628d | 511 | tmp = (gphy->pga_gain << 8); |
e4d6b795 MB |
512 | b43_phy_write(dev, B43_PHY_RFOVERVAL, tmp | 0xA0); |
513 | udelay(5); | |
514 | b43_phy_write(dev, B43_PHY_RFOVERVAL, tmp | 0xA2); | |
515 | udelay(2); | |
516 | b43_phy_write(dev, B43_PHY_RFOVERVAL, tmp | 0xA3); | |
517 | } else { | |
ef1a628d | 518 | tmp = (gphy->pga_gain | 0xEFA0); |
e4d6b795 MB |
519 | b43_phy_write(dev, B43_PHY_PGACTL, tmp); |
520 | } | |
e4d6b795 MB |
521 | if (phy->type == B43_PHYTYPE_G) { |
522 | if (phy->rev >= 3) | |
5250703e | 523 | b43_phy_write(dev, B43_PHY_CCK(0x2E), 0xC078); |
e4d6b795 | 524 | else |
5250703e | 525 | b43_phy_write(dev, B43_PHY_CCK(0x2E), 0x8078); |
e4d6b795 | 526 | if (phy->rev >= 2) |
5250703e | 527 | b43_phy_write(dev, B43_PHY_CCK(0x2F), 0x0202); |
e4d6b795 | 528 | else |
5250703e | 529 | b43_phy_write(dev, B43_PHY_CCK(0x2F), 0x0101); |
e4d6b795 MB |
530 | } |
531 | b43_write16(dev, 0x3F4, sav->reg_3F4); | |
532 | b43_phy_write(dev, B43_PHY_PGACTL, sav->phy_pgactl); | |
5250703e | 533 | b43_phy_write(dev, B43_PHY_CCK(0x2A), sav->phy_cck_2A); |
e4d6b795 MB |
534 | b43_phy_write(dev, B43_PHY_SYNCCTL, sav->phy_syncctl); |
535 | b43_phy_write(dev, B43_PHY_DACCTL, sav->phy_dacctl); | |
536 | b43_radio_write16(dev, 0x43, sav->radio_43); | |
537 | b43_radio_write16(dev, 0x7A, sav->radio_7A); | |
538 | if (!has_tx_magnification(phy)) { | |
539 | tmp = sav->radio_52; | |
5f9724dd | 540 | b43_radio_maskset(dev, 0x52, 0xFF0F, tmp); |
e4d6b795 MB |
541 | } |
542 | b43_write16(dev, 0x3E2, sav->reg_3E2); | |
543 | if (phy->type == B43_PHYTYPE_B && | |
544 | phy->radio_ver == 0x2050 && phy->radio_rev <= 5) { | |
5250703e MB |
545 | b43_phy_write(dev, B43_PHY_CCK(0x30), sav->phy_cck_30); |
546 | b43_phy_write(dev, B43_PHY_CCK(0x06), sav->phy_cck_06); | |
e4d6b795 MB |
547 | } |
548 | if (phy->rev >= 2) { | |
549 | b43_phy_write(dev, B43_PHY_ANALOGOVER, sav->phy_analogover); | |
550 | b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, | |
551 | sav->phy_analogoverval); | |
552 | b43_phy_write(dev, B43_PHY_CLASSCTL, sav->phy_classctl); | |
553 | b43_phy_write(dev, B43_PHY_RFOVER, sav->phy_rfover); | |
554 | b43_phy_write(dev, B43_PHY_RFOVERVAL, sav->phy_rfoverval); | |
5250703e | 555 | b43_phy_write(dev, B43_PHY_CCK(0x3E), sav->phy_cck_3E); |
e4d6b795 MB |
556 | b43_phy_write(dev, B43_PHY_CRS0, sav->phy_crs0); |
557 | } | |
ef1a628d | 558 | if (b43_has_hardware_pctl(dev)) { |
e4d6b795 MB |
559 | tmp = (sav->phy_lo_mask & 0xBFFF); |
560 | b43_phy_write(dev, B43_PHY_LO_MASK, tmp); | |
561 | b43_phy_write(dev, B43_PHY_EXTG(0x01), sav->phy_extg_01); | |
562 | b43_phy_write(dev, B43_PHY_DACCTL, sav->phy_dacctl_hwpctl); | |
5250703e | 563 | b43_phy_write(dev, B43_PHY_CCK(0x14), sav->phy_cck_14); |
e4d6b795 MB |
564 | b43_phy_write(dev, B43_PHY_HPWR_TSSICTL, sav->phy_hpwr_tssictl); |
565 | } | |
ef1a628d | 566 | b43_gphy_channel_switch(dev, sav->old_channel, 1); |
e4d6b795 MB |
567 | } |
568 | ||
569 | struct b43_lo_g_statemachine { | |
570 | int current_state; | |
571 | int nr_measured; | |
572 | int state_val_multiplier; | |
573 | u16 lowest_feedth; | |
574 | struct b43_loctl min_loctl; | |
575 | }; | |
576 | ||
577 | /* Loop over each possible value in this state. */ | |
578 | static int lo_probe_possible_loctls(struct b43_wldev *dev, | |
579 | struct b43_loctl *probe_loctl, | |
580 | struct b43_lo_g_statemachine *d) | |
581 | { | |
582 | struct b43_phy *phy = &dev->phy; | |
ef1a628d | 583 | struct b43_phy_g *gphy = phy->g; |
e4d6b795 MB |
584 | struct b43_loctl test_loctl; |
585 | struct b43_loctl orig_loctl; | |
586 | struct b43_loctl prev_loctl = { | |
587 | .i = -100, | |
588 | .q = -100, | |
589 | }; | |
590 | int i; | |
591 | int begin, end; | |
592 | int found_lower = 0; | |
593 | u16 feedth; | |
594 | ||
595 | static const struct b43_loctl modifiers[] = { | |
596 | {.i = 1,.q = 1,}, | |
597 | {.i = 1,.q = 0,}, | |
598 | {.i = 1,.q = -1,}, | |
599 | {.i = 0,.q = -1,}, | |
600 | {.i = -1,.q = -1,}, | |
601 | {.i = -1,.q = 0,}, | |
602 | {.i = -1,.q = 1,}, | |
603 | {.i = 0,.q = 1,}, | |
604 | }; | |
605 | ||
606 | if (d->current_state == 0) { | |
607 | begin = 1; | |
608 | end = 8; | |
609 | } else if (d->current_state % 2 == 0) { | |
610 | begin = d->current_state - 1; | |
611 | end = d->current_state + 1; | |
612 | } else { | |
613 | begin = d->current_state - 2; | |
614 | end = d->current_state + 2; | |
615 | } | |
616 | if (begin < 1) | |
617 | begin += 8; | |
618 | if (end > 8) | |
619 | end -= 8; | |
620 | ||
621 | memcpy(&orig_loctl, probe_loctl, sizeof(struct b43_loctl)); | |
622 | i = begin; | |
623 | d->current_state = i; | |
624 | while (1) { | |
625 | B43_WARN_ON(!(i >= 1 && i <= 8)); | |
626 | memcpy(&test_loctl, &orig_loctl, sizeof(struct b43_loctl)); | |
627 | test_loctl.i += modifiers[i - 1].i * d->state_val_multiplier; | |
628 | test_loctl.q += modifiers[i - 1].q * d->state_val_multiplier; | |
629 | if ((test_loctl.i != prev_loctl.i || | |
630 | test_loctl.q != prev_loctl.q) && | |
631 | (abs(test_loctl.i) <= 16 && abs(test_loctl.q) <= 16)) { | |
632 | b43_lo_write(dev, &test_loctl); | |
ef1a628d MB |
633 | feedth = lo_measure_feedthrough(dev, gphy->lna_gain, |
634 | gphy->pga_gain, | |
635 | gphy->trsw_rx_gain); | |
e4d6b795 MB |
636 | if (feedth < d->lowest_feedth) { |
637 | memcpy(probe_loctl, &test_loctl, | |
638 | sizeof(struct b43_loctl)); | |
639 | found_lower = 1; | |
640 | d->lowest_feedth = feedth; | |
641 | if ((d->nr_measured < 2) && | |
f5eda47f | 642 | !has_loopback_gain(phy)) |
e4d6b795 MB |
643 | break; |
644 | } | |
645 | } | |
646 | memcpy(&prev_loctl, &test_loctl, sizeof(prev_loctl)); | |
647 | if (i == end) | |
648 | break; | |
649 | if (i == 8) | |
650 | i = 1; | |
651 | else | |
652 | i++; | |
653 | d->current_state = i; | |
654 | } | |
655 | ||
656 | return found_lower; | |
657 | } | |
658 | ||
659 | static void lo_probe_loctls_statemachine(struct b43_wldev *dev, | |
660 | struct b43_loctl *loctl, | |
661 | int *max_rx_gain) | |
662 | { | |
663 | struct b43_phy *phy = &dev->phy; | |
ef1a628d | 664 | struct b43_phy_g *gphy = phy->g; |
e4d6b795 MB |
665 | struct b43_lo_g_statemachine d; |
666 | u16 feedth; | |
667 | int found_lower; | |
668 | struct b43_loctl probe_loctl; | |
669 | int max_repeat = 1, repeat_cnt = 0; | |
670 | ||
671 | d.nr_measured = 0; | |
672 | d.state_val_multiplier = 1; | |
f5eda47f | 673 | if (has_loopback_gain(phy)) |
e4d6b795 MB |
674 | d.state_val_multiplier = 3; |
675 | ||
676 | memcpy(&d.min_loctl, loctl, sizeof(struct b43_loctl)); | |
f5eda47f | 677 | if (has_loopback_gain(phy)) |
e4d6b795 MB |
678 | max_repeat = 4; |
679 | do { | |
680 | b43_lo_write(dev, &d.min_loctl); | |
ef1a628d MB |
681 | feedth = lo_measure_feedthrough(dev, gphy->lna_gain, |
682 | gphy->pga_gain, | |
683 | gphy->trsw_rx_gain); | |
f5eda47f | 684 | if (feedth < 0x258) { |
e4d6b795 MB |
685 | if (feedth >= 0x12C) |
686 | *max_rx_gain += 6; | |
687 | else | |
688 | *max_rx_gain += 3; | |
ef1a628d MB |
689 | feedth = lo_measure_feedthrough(dev, gphy->lna_gain, |
690 | gphy->pga_gain, | |
691 | gphy->trsw_rx_gain); | |
e4d6b795 MB |
692 | } |
693 | d.lowest_feedth = feedth; | |
694 | ||
695 | d.current_state = 0; | |
696 | do { | |
697 | B43_WARN_ON(! | |
698 | (d.current_state >= 0 | |
699 | && d.current_state <= 8)); | |
700 | memcpy(&probe_loctl, &d.min_loctl, | |
701 | sizeof(struct b43_loctl)); | |
702 | found_lower = | |
703 | lo_probe_possible_loctls(dev, &probe_loctl, &d); | |
704 | if (!found_lower) | |
705 | break; | |
706 | if ((probe_loctl.i == d.min_loctl.i) && | |
707 | (probe_loctl.q == d.min_loctl.q)) | |
708 | break; | |
709 | memcpy(&d.min_loctl, &probe_loctl, | |
710 | sizeof(struct b43_loctl)); | |
711 | d.nr_measured++; | |
712 | } while (d.nr_measured < 24); | |
713 | memcpy(loctl, &d.min_loctl, sizeof(struct b43_loctl)); | |
714 | ||
715 | if (has_loopback_gain(phy)) { | |
716 | if (d.lowest_feedth > 0x1194) | |
717 | *max_rx_gain -= 6; | |
718 | else if (d.lowest_feedth < 0x5DC) | |
719 | *max_rx_gain += 3; | |
720 | if (repeat_cnt == 0) { | |
721 | if (d.lowest_feedth <= 0x5DC) { | |
722 | d.state_val_multiplier = 1; | |
723 | repeat_cnt++; | |
724 | } else | |
725 | d.state_val_multiplier = 2; | |
726 | } else if (repeat_cnt == 2) | |
727 | d.state_val_multiplier = 1; | |
728 | } | |
729 | lo_measure_gain_values(dev, *max_rx_gain, | |
730 | has_loopback_gain(phy)); | |
731 | } while (++repeat_cnt < max_repeat); | |
732 | } | |
733 | ||
f5eda47f | 734 | static |
99da185a JD |
735 | struct b43_lo_calib *b43_calibrate_lo_setting(struct b43_wldev *dev, |
736 | const struct b43_bbatt *bbatt, | |
737 | const struct b43_rfatt *rfatt) | |
e4d6b795 MB |
738 | { |
739 | struct b43_phy *phy = &dev->phy; | |
ef1a628d | 740 | struct b43_phy_g *gphy = phy->g; |
e4d6b795 MB |
741 | struct b43_loctl loctl = { |
742 | .i = 0, | |
743 | .q = 0, | |
744 | }; | |
e4d6b795 | 745 | int max_rx_gain; |
f5eda47f MB |
746 | struct b43_lo_calib *cal; |
747 | struct lo_g_saved_values uninitialized_var(saved_regs); | |
e4d6b795 MB |
748 | /* Values from the "TXCTL Register and Value Table" */ |
749 | u16 txctl_reg; | |
750 | u16 txctl_value; | |
751 | u16 pad_mix_gain; | |
752 | ||
f5eda47f MB |
753 | saved_regs.old_channel = phy->channel; |
754 | b43_mac_suspend(dev); | |
755 | lo_measure_setup(dev, &saved_regs); | |
e4d6b795 MB |
756 | |
757 | txctl_reg = lo_txctl_register_table(dev, &txctl_value, &pad_mix_gain); | |
758 | ||
5f9724dd MB |
759 | b43_radio_maskset(dev, 0x43, 0xFFF0, rfatt->att); |
760 | b43_radio_maskset(dev, txctl_reg, ~txctl_value, (rfatt->with_padmix ? txctl_value :0)); | |
e4d6b795 | 761 | |
f5eda47f MB |
762 | max_rx_gain = rfatt->att * 2; |
763 | max_rx_gain += bbatt->att / 2; | |
764 | if (rfatt->with_padmix) | |
765 | max_rx_gain -= pad_mix_gain; | |
766 | if (has_loopback_gain(phy)) | |
ef1a628d | 767 | max_rx_gain += gphy->max_lb_gain; |
f5eda47f MB |
768 | lo_measure_gain_values(dev, max_rx_gain, |
769 | has_loopback_gain(phy)); | |
770 | ||
ef1a628d | 771 | b43_gphy_set_baseband_attenuation(dev, bbatt->att); |
f5eda47f MB |
772 | lo_probe_loctls_statemachine(dev, &loctl, &max_rx_gain); |
773 | ||
774 | lo_measure_restore(dev, &saved_regs); | |
775 | b43_mac_enable(dev); | |
776 | ||
777 | if (b43_debug(dev, B43_DBG_LO)) { | |
778 | b43dbg(dev->wl, "LO: Calibrated for BB(%u), RF(%u,%u) " | |
779 | "=> I=%d Q=%d\n", | |
780 | bbatt->att, rfatt->att, rfatt->with_padmix, | |
781 | loctl.i, loctl.q); | |
e4d6b795 | 782 | } |
e4d6b795 | 783 | |
f5eda47f MB |
784 | cal = kmalloc(sizeof(*cal), GFP_KERNEL); |
785 | if (!cal) { | |
786 | b43warn(dev->wl, "LO calib: out of memory\n"); | |
787 | return NULL; | |
e4d6b795 | 788 | } |
f5eda47f MB |
789 | memcpy(&cal->bbatt, bbatt, sizeof(*bbatt)); |
790 | memcpy(&cal->rfatt, rfatt, sizeof(*rfatt)); | |
791 | memcpy(&cal->ctl, &loctl, sizeof(loctl)); | |
792 | cal->calib_time = jiffies; | |
793 | INIT_LIST_HEAD(&cal->list); | |
794 | ||
795 | return cal; | |
e4d6b795 MB |
796 | } |
797 | ||
f5eda47f MB |
798 | /* Get a calibrated LO setting for the given attenuation values. |
799 | * Might return a NULL pointer under OOM! */ | |
800 | static | |
99da185a JD |
801 | struct b43_lo_calib *b43_get_calib_lo_settings(struct b43_wldev *dev, |
802 | const struct b43_bbatt *bbatt, | |
803 | const struct b43_rfatt *rfatt) | |
e4d6b795 | 804 | { |
ef1a628d | 805 | struct b43_txpower_lo_control *lo = dev->phy.g->lo_control; |
f5eda47f MB |
806 | struct b43_lo_calib *c; |
807 | ||
808 | c = b43_find_lo_calib(lo, bbatt, rfatt); | |
809 | if (c) | |
810 | return c; | |
811 | /* Not in the list of calibrated LO settings. | |
812 | * Calibrate it now. */ | |
813 | c = b43_calibrate_lo_setting(dev, bbatt, rfatt); | |
814 | if (!c) | |
815 | return NULL; | |
816 | list_add(&c->list, &lo->calib_list); | |
817 | ||
818 | return c; | |
e4d6b795 MB |
819 | } |
820 | ||
f5eda47f | 821 | void b43_gphy_dc_lt_init(struct b43_wldev *dev, bool update_all) |
e4d6b795 MB |
822 | { |
823 | struct b43_phy *phy = &dev->phy; | |
ef1a628d MB |
824 | struct b43_phy_g *gphy = phy->g; |
825 | struct b43_txpower_lo_control *lo = gphy->lo_control; | |
f5eda47f MB |
826 | int i; |
827 | int rf_offset, bb_offset; | |
828 | const struct b43_rfatt *rfatt; | |
829 | const struct b43_bbatt *bbatt; | |
830 | u64 power_vector; | |
831 | bool table_changed = 0; | |
e4d6b795 | 832 | |
f5eda47f MB |
833 | BUILD_BUG_ON(B43_DC_LT_SIZE != 32); |
834 | B43_WARN_ON(lo->rfatt_list.len * lo->bbatt_list.len > 64); | |
e4d6b795 | 835 | |
f5eda47f MB |
836 | power_vector = lo->power_vector; |
837 | if (!update_all && !power_vector) | |
838 | return; /* Nothing to do. */ | |
839 | ||
840 | /* Suspend the MAC now to avoid continuous suspend/enable | |
841 | * cycles in the loop. */ | |
842 | b43_mac_suspend(dev); | |
843 | ||
844 | for (i = 0; i < B43_DC_LT_SIZE * 2; i++) { | |
845 | struct b43_lo_calib *cal; | |
846 | int idx; | |
847 | u16 val; | |
848 | ||
849 | if (!update_all && !(power_vector & (((u64)1ULL) << i))) | |
850 | continue; | |
851 | /* Update the table entry for this power_vector bit. | |
852 | * The table rows are RFatt entries and columns are BBatt. */ | |
853 | bb_offset = i / lo->rfatt_list.len; | |
854 | rf_offset = i % lo->rfatt_list.len; | |
855 | bbatt = &(lo->bbatt_list.list[bb_offset]); | |
856 | rfatt = &(lo->rfatt_list.list[rf_offset]); | |
857 | ||
858 | cal = b43_calibrate_lo_setting(dev, bbatt, rfatt); | |
859 | if (!cal) { | |
860 | b43warn(dev->wl, "LO: Could not " | |
861 | "calibrate DC table entry\n"); | |
862 | continue; | |
863 | } | |
864 | /*FIXME: Is Q really in the low nibble? */ | |
865 | val = (u8)(cal->ctl.q); | |
866 | val |= ((u8)(cal->ctl.i)) << 4; | |
867 | kfree(cal); | |
868 | ||
869 | /* Get the index into the hardware DC LT. */ | |
870 | idx = i / 2; | |
871 | /* Change the table in memory. */ | |
872 | if (i % 2) { | |
873 | /* Change the high byte. */ | |
874 | lo->dc_lt[idx] = (lo->dc_lt[idx] & 0x00FF) | |
875 | | ((val & 0x00FF) << 8); | |
876 | } else { | |
877 | /* Change the low byte. */ | |
878 | lo->dc_lt[idx] = (lo->dc_lt[idx] & 0xFF00) | |
879 | | (val & 0x00FF); | |
880 | } | |
881 | table_changed = 1; | |
e4d6b795 | 882 | } |
f5eda47f MB |
883 | if (table_changed) { |
884 | /* The table changed in memory. Update the hardware table. */ | |
885 | for (i = 0; i < B43_DC_LT_SIZE; i++) | |
886 | b43_phy_write(dev, 0x3A0 + i, lo->dc_lt[i]); | |
887 | } | |
888 | b43_mac_enable(dev); | |
e4d6b795 | 889 | } |
e4d6b795 | 890 | |
f5eda47f MB |
891 | /* Fixup the RF attenuation value for the case where we are |
892 | * using the PAD mixer. */ | |
893 | static inline void b43_lo_fixup_rfatt(struct b43_rfatt *rf) | |
e4d6b795 | 894 | { |
f5eda47f MB |
895 | if (!rf->with_padmix) |
896 | return; | |
897 | if ((rf->att != 1) && (rf->att != 2) && (rf->att != 3)) | |
898 | rf->att = 4; | |
e4d6b795 MB |
899 | } |
900 | ||
901 | void b43_lo_g_adjust(struct b43_wldev *dev) | |
902 | { | |
ef1a628d | 903 | struct b43_phy_g *gphy = dev->phy.g; |
f5eda47f | 904 | struct b43_lo_calib *cal; |
e4d6b795 | 905 | struct b43_rfatt rf; |
e4d6b795 | 906 | |
ef1a628d | 907 | memcpy(&rf, &gphy->rfatt, sizeof(rf)); |
f5eda47f | 908 | b43_lo_fixup_rfatt(&rf); |
e4d6b795 | 909 | |
ef1a628d | 910 | cal = b43_get_calib_lo_settings(dev, &gphy->bbatt, &rf); |
f5eda47f MB |
911 | if (!cal) |
912 | return; | |
913 | b43_lo_write(dev, &cal->ctl); | |
e4d6b795 MB |
914 | } |
915 | ||
916 | void b43_lo_g_adjust_to(struct b43_wldev *dev, | |
917 | u16 rfatt, u16 bbatt, u16 tx_control) | |
918 | { | |
919 | struct b43_rfatt rf; | |
920 | struct b43_bbatt bb; | |
f5eda47f | 921 | struct b43_lo_calib *cal; |
e4d6b795 MB |
922 | |
923 | memset(&rf, 0, sizeof(rf)); | |
924 | memset(&bb, 0, sizeof(bb)); | |
925 | rf.att = rfatt; | |
926 | bb.att = bbatt; | |
f5eda47f MB |
927 | b43_lo_fixup_rfatt(&rf); |
928 | cal = b43_get_calib_lo_settings(dev, &bb, &rf); | |
929 | if (!cal) | |
930 | return; | |
931 | b43_lo_write(dev, &cal->ctl); | |
e4d6b795 MB |
932 | } |
933 | ||
f5eda47f MB |
934 | /* Periodic LO maintanance work */ |
935 | void b43_lo_g_maintanance_work(struct b43_wldev *dev) | |
e4d6b795 | 936 | { |
f5eda47f | 937 | struct b43_phy *phy = &dev->phy; |
ef1a628d MB |
938 | struct b43_phy_g *gphy = phy->g; |
939 | struct b43_txpower_lo_control *lo = gphy->lo_control; | |
f5eda47f MB |
940 | unsigned long now; |
941 | unsigned long expire; | |
942 | struct b43_lo_calib *cal, *tmp; | |
943 | bool current_item_expired = 0; | |
944 | bool hwpctl; | |
945 | ||
946 | if (!lo) | |
947 | return; | |
948 | now = jiffies; | |
ef1a628d | 949 | hwpctl = b43_has_hardware_pctl(dev); |
f5eda47f MB |
950 | |
951 | if (hwpctl) { | |
952 | /* Read the power vector and update it, if needed. */ | |
953 | expire = now - B43_LO_PWRVEC_EXPIRE; | |
954 | if (time_before(lo->pwr_vec_read_time, expire)) { | |
955 | lo_read_power_vector(dev); | |
956 | b43_gphy_dc_lt_init(dev, 0); | |
957 | } | |
958 | //FIXME Recalc the whole DC table from time to time? | |
959 | } | |
960 | ||
961 | if (hwpctl) | |
962 | return; | |
963 | /* Search for expired LO settings. Remove them. | |
964 | * Recalibrate the current setting, if expired. */ | |
965 | expire = now - B43_LO_CALIB_EXPIRE; | |
966 | list_for_each_entry_safe(cal, tmp, &lo->calib_list, list) { | |
967 | if (!time_before(cal->calib_time, expire)) | |
968 | continue; | |
969 | /* This item expired. */ | |
ef1a628d MB |
970 | if (b43_compare_bbatt(&cal->bbatt, &gphy->bbatt) && |
971 | b43_compare_rfatt(&cal->rfatt, &gphy->rfatt)) { | |
f5eda47f MB |
972 | B43_WARN_ON(current_item_expired); |
973 | current_item_expired = 1; | |
974 | } | |
975 | if (b43_debug(dev, B43_DBG_LO)) { | |
976 | b43dbg(dev->wl, "LO: Item BB(%u), RF(%u,%u), " | |
977 | "I=%d, Q=%d expired\n", | |
978 | cal->bbatt.att, cal->rfatt.att, | |
979 | cal->rfatt.with_padmix, | |
980 | cal->ctl.i, cal->ctl.q); | |
981 | } | |
982 | list_del(&cal->list); | |
983 | kfree(cal); | |
984 | } | |
985 | if (current_item_expired || unlikely(list_empty(&lo->calib_list))) { | |
986 | /* Recalibrate currently used LO setting. */ | |
987 | if (b43_debug(dev, B43_DBG_LO)) | |
988 | b43dbg(dev->wl, "LO: Recalibrating current LO setting\n"); | |
ef1a628d | 989 | cal = b43_calibrate_lo_setting(dev, &gphy->bbatt, &gphy->rfatt); |
f5eda47f MB |
990 | if (cal) { |
991 | list_add(&cal->list, &lo->calib_list); | |
992 | b43_lo_write(dev, &cal->ctl); | |
993 | } else | |
994 | b43warn(dev->wl, "Failed to recalibrate current LO setting\n"); | |
995 | } | |
e4d6b795 MB |
996 | } |
997 | ||
f5eda47f | 998 | void b43_lo_g_cleanup(struct b43_wldev *dev) |
e4d6b795 | 999 | { |
ef1a628d | 1000 | struct b43_txpower_lo_control *lo = dev->phy.g->lo_control; |
f5eda47f | 1001 | struct b43_lo_calib *cal, *tmp; |
e4d6b795 | 1002 | |
f5eda47f MB |
1003 | if (!lo) |
1004 | return; | |
1005 | list_for_each_entry_safe(cal, tmp, &lo->calib_list, list) { | |
1006 | list_del(&cal->list); | |
1007 | kfree(cal); | |
1008 | } | |
e4d6b795 MB |
1009 | } |
1010 | ||
f5eda47f MB |
1011 | /* LO Initialization */ |
1012 | void b43_lo_g_init(struct b43_wldev *dev) | |
e4d6b795 | 1013 | { |
ef1a628d | 1014 | if (b43_has_hardware_pctl(dev)) { |
f5eda47f MB |
1015 | lo_read_power_vector(dev); |
1016 | b43_gphy_dc_lt_init(dev, 1); | |
1017 | } | |
e4d6b795 | 1018 | } |