drivers/net/wireless/b43/phy_g.c

   1 /*
   2
   3   Broadcom B43 wireless driver
   4   IEEE 802.11g 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_g.h"
  31 #include "phy_common.h"
  32 #include "lo.h"
  33 #include "main.h"
  34
  35 #include <linux/bitrev.h>
  36 #include <linux/slab.h>
  37
  38
  39 static const s8 b43_tssi2dbm_g_table[] = {
  40         77, 77, 77, 76,
  41         76, 76, 75, 75,
  42         74, 74, 73, 73,
  43         73, 72, 72, 71,
  44         71, 70, 70, 69,
  45         68, 68, 67, 67,
  46         66, 65, 65, 64,
  47         63, 63, 62, 61,
  48         60, 59, 58, 57,
  49         56, 55, 54, 53,
  50         52, 50, 49, 47,
  51         45, 43, 40, 37,
  52         33, 28, 22, 14,
  53         5, -7, -20, -20,
  54         -20, -20, -20, -20,
  55         -20, -20, -20, -20,
  56 };
  57
  58 static const u8 b43_radio_channel_codes_bg[] = {
  59         12, 17, 22, 27,
  60         32, 37, 42, 47,
  61         52, 57, 62, 67,
  62         72, 84,
  63 };
  64
  65
  66 static void b43_calc_nrssi_threshold(struct b43_wldev *dev);
  67
  68
  69 #define bitrev4(tmp) (bitrev8(tmp) >> 4)
  70
  71
  72 /* Get the freq, as it has to be written to the device. */
  73 static inline u16 channel2freq_bg(u8 channel)
  74 {
  75         B43_WARN_ON(!(channel >= 1 && channel <= 14));
  76
  77         return b43_radio_channel_codes_bg[channel - 1];
  78 }
  79
  80 static void generate_rfatt_list(struct b43_wldev *dev,
  81                                 struct b43_rfatt_list *list)
  82 {
  83         struct b43_phy *phy = &dev->phy;
  84
  85         /* APHY.rev < 5 || GPHY.rev < 6 */
  86         static const struct b43_rfatt rfatt_0[] = {
  87                 {.att = 3,.with_padmix = 0,},
  88                 {.att = 1,.with_padmix = 0,},
  89                 {.att = 5,.with_padmix = 0,},
  90                 {.att = 7,.with_padmix = 0,},
  91                 {.att = 9,.with_padmix = 0,},
  92                 {.att = 2,.with_padmix = 0,},
  93                 {.att = 0,.with_padmix = 0,},
  94                 {.att = 4,.with_padmix = 0,},
  95                 {.att = 6,.with_padmix = 0,},
  96                 {.att = 8,.with_padmix = 0,},
  97                 {.att = 1,.with_padmix = 1,},
  98                 {.att = 2,.with_padmix = 1,},
  99                 {.att = 3,.with_padmix = 1,},
 100                 {.att = 4,.with_padmix = 1,},
 101         };
 102         /* Radio.rev == 8 && Radio.version == 0x2050 */
 103         static const struct b43_rfatt rfatt_1[] = {
 104                 {.att = 2,.with_padmix = 1,},
 105                 {.att = 4,.with_padmix = 1,},
 106                 {.att = 6,.with_padmix = 1,},
 107                 {.att = 8,.with_padmix = 1,},
 108                 {.att = 10,.with_padmix = 1,},
 109                 {.att = 12,.with_padmix = 1,},
 110                 {.att = 14,.with_padmix = 1,},
 111         };
 112         /* Otherwise */
 113         static const struct b43_rfatt rfatt_2[] = {
 114                 {.att = 0,.with_padmix = 1,},
 115                 {.att = 2,.with_padmix = 1,},
 116                 {.att = 4,.with_padmix = 1,},
 117                 {.att = 6,.with_padmix = 1,},
 118                 {.att = 8,.with_padmix = 1,},
 119                 {.att = 9,.with_padmix = 1,},
 120                 {.att = 9,.with_padmix = 1,},
 121         };
 122
 123         if (!b43_has_hardware_pctl(dev)) {
 124                 /* Software pctl */
 125                 list->list = rfatt_0;
 126                 list->len = ARRAY_SIZE(rfatt_0);
 127                 list->min_val = 0;
 128                 list->max_val = 9;
 129                 return;
 130         }
 131         if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
 132                 /* Hardware pctl */
 133                 list->list = rfatt_1;
 134                 list->len = ARRAY_SIZE(rfatt_1);
 135                 list->min_val = 0;
 136                 list->max_val = 14;
 137                 return;
 138         }
 139         /* Hardware pctl */
 140         list->list = rfatt_2;
 141         list->len = ARRAY_SIZE(rfatt_2);
 142         list->min_val = 0;
 143         list->max_val = 9;
 144 }
 145
 146 static void generate_bbatt_list(struct b43_wldev *dev,
 147                                 struct b43_bbatt_list *list)
 148 {
 149         static const struct b43_bbatt bbatt_0[] = {
 150                 {.att = 0,},
 151                 {.att = 1,},
 152                 {.att = 2,},
 153                 {.att = 3,},
 154                 {.att = 4,},
 155                 {.att = 5,},
 156                 {.att = 6,},
 157                 {.att = 7,},
 158                 {.att = 8,},
 159         };
 160
 161         list->list = bbatt_0;
 162         list->len = ARRAY_SIZE(bbatt_0);
 163         list->min_val = 0;
 164         list->max_val = 8;
 165 }
 166
 167 static void b43_shm_clear_tssi(struct b43_wldev *dev)
 168 {
 169         b43_shm_write16(dev, B43_SHM_SHARED, 0x0058, 0x7F7F);
 170         b43_shm_write16(dev, B43_SHM_SHARED, 0x005a, 0x7F7F);
 171         b43_shm_write16(dev, B43_SHM_SHARED, 0x0070, 0x7F7F);
 172         b43_shm_write16(dev, B43_SHM_SHARED, 0x0072, 0x7F7F);
 173 }
 174
 175 /* Synthetic PU workaround */
 176 static void b43_synth_pu_workaround(struct b43_wldev *dev, u8 channel)
 177 {
 178         struct b43_phy *phy = &dev->phy;
 179
 180         might_sleep();
 181
 182         if (phy->radio_ver != 0x2050 || phy->radio_rev >= 6) {
 183                 /* We do not need the workaround. */
 184                 return;
 185         }
 186
 187         if (channel <= 10) {
 188                 b43_write16(dev, B43_MMIO_CHANNEL,
 189                             channel2freq_bg(channel + 4));
 190         } else {
 191                 b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(1));
 192         }
 193         msleep(1);
 194         b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel));
 195 }
 196
 197 /* Set the baseband attenuation value on chip. */
 198 void b43_gphy_set_baseband_attenuation(struct b43_wldev *dev,
 199                                        u16 baseband_attenuation)
 200 {
 201         struct b43_phy *phy = &dev->phy;
 202
 203         if (phy->analog == 0) {
 204                 b43_write16(dev, B43_MMIO_PHY0, (b43_read16(dev, B43_MMIO_PHY0)
 205                                                  & 0xFFF0) |
 206                             baseband_attenuation);
 207         } else if (phy->analog > 1) {
 208                 b43_phy_maskset(dev, B43_PHY_DACCTL, 0xFFC3, (baseband_attenuation << 2));
 209         } else {
 210                 b43_phy_maskset(dev, B43_PHY_DACCTL, 0xFF87, (baseband_attenuation << 3));
 211         }
 212 }
 213
 214 /* Adjust the transmission power output (G-PHY) */
 215 static void b43_set_txpower_g(struct b43_wldev *dev,
 216                               const struct b43_bbatt *bbatt,
 217                               const struct b43_rfatt *rfatt, u8 tx_control)
 218 {
 219         struct b43_phy *phy = &dev->phy;
 220         struct b43_phy_g *gphy = phy->g;
 221         struct b43_txpower_lo_control *lo = gphy->lo_control;
 222         u16 bb, rf;
 223         u16 tx_bias, tx_magn;
 224
 225         bb = bbatt->att;
 226         rf = rfatt->att;
 227         tx_bias = lo->tx_bias;
 228         tx_magn = lo->tx_magn;
 229         if (unlikely(tx_bias == 0xFF))
 230                 tx_bias = 0;
 231
 232         /* Save the values for later. Use memmove, because it's valid
 233          * to pass &gphy->rfatt as rfatt pointer argument. Same for bbatt. */
 234         gphy->tx_control = tx_control;
 235         memmove(&gphy->rfatt, rfatt, sizeof(*rfatt));
 236         gphy->rfatt.with_padmix = !!(tx_control & B43_TXCTL_TXMIX);
 237         memmove(&gphy->bbatt, bbatt, sizeof(*bbatt));
 238
 239         if (b43_debug(dev, B43_DBG_XMITPOWER)) {
 240                 b43dbg(dev->wl, "Tuning TX-power to bbatt(%u), "
 241                        "rfatt(%u), tx_control(0x%02X), "
 242                        "tx_bias(0x%02X), tx_magn(0x%02X)\n",
 243                        bb, rf, tx_control, tx_bias, tx_magn);
 244         }
 245
 246         b43_gphy_set_baseband_attenuation(dev, bb);
 247         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_RFATT, rf);
 248         if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
 249                 b43_radio_write16(dev, 0x43,
 250                                   (rf & 0x000F) | (tx_control & 0x0070));
 251         } else {
 252                 b43_radio_maskset(dev, 0x43, 0xFFF0, (rf & 0x000F));
 253                 b43_radio_maskset(dev, 0x52, ~0x0070, (tx_control & 0x0070));
 254         }
 255         if (has_tx_magnification(phy)) {
 256                 b43_radio_write16(dev, 0x52, tx_magn | tx_bias);
 257         } else {
 258                 b43_radio_maskset(dev, 0x52, 0xFFF0, (tx_bias & 0x000F));
 259         }
 260         b43_lo_g_adjust(dev);
 261 }
 262
 263 /* GPHY_TSSI_Power_Lookup_Table_Init */
 264 static void b43_gphy_tssi_power_lt_init(struct b43_wldev *dev)
 265 {
 266         struct b43_phy_g *gphy = dev->phy.g;
 267         int i;
 268         u16 value;
 269
 270         for (i = 0; i < 32; i++)
 271                 b43_ofdmtab_write16(dev, 0x3C20, i, gphy->tssi2dbm[i]);
 272         for (i = 32; i < 64; i++)
 273                 b43_ofdmtab_write16(dev, 0x3C00, i - 32, gphy->tssi2dbm[i]);
 274         for (i = 0; i < 64; i += 2) {
 275                 value = (u16) gphy->tssi2dbm[i];
 276                 value |= ((u16) gphy->tssi2dbm[i + 1]) << 8;
 277                 b43_phy_write(dev, 0x380 + (i / 2), value);
 278         }
 279 }
 280
 281 /* GPHY_Gain_Lookup_Table_Init */
 282 static void b43_gphy_gain_lt_init(struct b43_wldev *dev)
 283 {
 284         struct b43_phy *phy = &dev->phy;
 285         struct b43_phy_g *gphy = phy->g;
 286         struct b43_txpower_lo_control *lo = gphy->lo_control;
 287         u16 nr_written = 0;
 288         u16 tmp;
 289         u8 rf, bb;
 290
 291         for (rf = 0; rf < lo->rfatt_list.len; rf++) {
 292                 for (bb = 0; bb < lo->bbatt_list.len; bb++) {
 293                         if (nr_written >= 0x40)
 294                                 return;
 295                         tmp = lo->bbatt_list.list[bb].att;
 296                         tmp <<= 8;
 297                         if (phy->radio_rev == 8)
 298                                 tmp |= 0x50;
 299                         else
 300                                 tmp |= 0x40;
 301                         tmp |= lo->rfatt_list.list[rf].att;
 302                         b43_phy_write(dev, 0x3C0 + nr_written, tmp);
 303                         nr_written++;
 304                 }
 305         }
 306 }
 307
 308 static void b43_set_all_gains(struct b43_wldev *dev,
 309                               s16 first, s16 second, s16 third)
 310 {
 311         struct b43_phy *phy = &dev->phy;
 312         u16 i;
 313         u16 start = 0x08, end = 0x18;
 314         u16 tmp;
 315         u16 table;
 316
 317         if (phy->rev <= 1) {
 318                 start = 0x10;
 319                 end = 0x20;
 320         }
 321
 322         table = B43_OFDMTAB_GAINX;
 323         if (phy->rev <= 1)
 324                 table = B43_OFDMTAB_GAINX_R1;
 325         for (i = 0; i < 4; i++)
 326                 b43_ofdmtab_write16(dev, table, i, first);
 327
 328         for (i = start; i < end; i++)
 329                 b43_ofdmtab_write16(dev, table, i, second);
 330
 331         if (third != -1) {
 332                 tmp = ((u16) third << 14) | ((u16) third << 6);
 333                 b43_phy_maskset(dev, 0x04A0, 0xBFBF, tmp);
 334                 b43_phy_maskset(dev, 0x04A1, 0xBFBF, tmp);
 335                 b43_phy_maskset(dev, 0x04A2, 0xBFBF, tmp);
 336         }
 337         b43_dummy_transmission(dev, false, true);
 338 }
 339
 340 static void b43_set_original_gains(struct b43_wldev *dev)
 341 {
 342         struct b43_phy *phy = &dev->phy;
 343         u16 i, tmp;
 344         u16 table;
 345         u16 start = 0x0008, end = 0x0018;
 346
 347         if (phy->rev <= 1) {
 348                 start = 0x0010;
 349                 end = 0x0020;
 350         }
 351
 352         table = B43_OFDMTAB_GAINX;
 353         if (phy->rev <= 1)
 354                 table = B43_OFDMTAB_GAINX_R1;
 355         for (i = 0; i < 4; i++) {
 356                 tmp = (i & 0xFFFC);
 357                 tmp |= (i & 0x0001) << 1;
 358                 tmp |= (i & 0x0002) >> 1;
 359
 360                 b43_ofdmtab_write16(dev, table, i, tmp);
 361         }
 362
 363         for (i = start; i < end; i++)
 364                 b43_ofdmtab_write16(dev, table, i, i - start);
 365
 366         b43_phy_maskset(dev, 0x04A0, 0xBFBF, 0x4040);
 367         b43_phy_maskset(dev, 0x04A1, 0xBFBF, 0x4040);
 368         b43_phy_maskset(dev, 0x04A2, 0xBFBF, 0x4000);
 369         b43_dummy_transmission(dev, false, true);
 370 }
 371
 372 /* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
 373 static void b43_nrssi_hw_write(struct b43_wldev *dev, u16 offset, s16 val)
 374 {
 375         b43_phy_write(dev, B43_PHY_NRSSILT_CTRL, offset);
 376         b43_phy_write(dev, B43_PHY_NRSSILT_DATA, (u16) val);
 377 }
 378
 379 /* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
 380 static s16 b43_nrssi_hw_read(struct b43_wldev *dev, u16 offset)
 381 {
 382         u16 val;
 383
 384         b43_phy_write(dev, B43_PHY_NRSSILT_CTRL, offset);
 385         val = b43_phy_read(dev, B43_PHY_NRSSILT_DATA);
 386
 387         return (s16) val;
 388 }
 389
 390 /* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
 391 static void b43_nrssi_hw_update(struct b43_wldev *dev, u16 val)
 392 {
 393         u16 i;
 394         s16 tmp;
 395
 396         for (i = 0; i < 64; i++) {
 397                 tmp = b43_nrssi_hw_read(dev, i);
 398                 tmp -= val;
 399                 tmp = clamp_val(tmp, -32, 31);
 400                 b43_nrssi_hw_write(dev, i, tmp);
 401         }
 402 }
 403
 404 /* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
 405 static void b43_nrssi_mem_update(struct b43_wldev *dev)
 406 {
 407         struct b43_phy_g *gphy = dev->phy.g;
 408         s16 i, delta;
 409         s32 tmp;
 410
 411         delta = 0x1F - gphy->nrssi[0];
 412         for (i = 0; i < 64; i++) {
 413                 tmp = (i - delta) * gphy->nrssislope;
 414                 tmp /= 0x10000;
 415                 tmp += 0x3A;
 416                 tmp = clamp_val(tmp, 0, 0x3F);
 417                 gphy->nrssi_lt[i] = tmp;
 418         }
 419 }
 420
 421 static void b43_calc_nrssi_offset(struct b43_wldev *dev)
 422 {
 423         struct b43_phy *phy = &dev->phy;
 424         u16 backup[20] = { 0 };
 425         s16 v47F;
 426         u16 i;
 427         u16 saved = 0xFFFF;
 428
 429         backup[0] = b43_phy_read(dev, 0x0001);
 430         backup[1] = b43_phy_read(dev, 0x0811);
 431         backup[2] = b43_phy_read(dev, 0x0812);
 432         if (phy->rev != 1) {    /* Not in specs, but needed to prevent PPC machine check */
 433                 backup[3] = b43_phy_read(dev, 0x0814);
 434                 backup[4] = b43_phy_read(dev, 0x0815);
 435         }
 436         backup[5] = b43_phy_read(dev, 0x005A);
 437         backup[6] = b43_phy_read(dev, 0x0059);
 438         backup[7] = b43_phy_read(dev, 0x0058);
 439         backup[8] = b43_phy_read(dev, 0x000A);
 440         backup[9] = b43_phy_read(dev, 0x0003);
 441         backup[10] = b43_radio_read16(dev, 0x007A);
 442         backup[11] = b43_radio_read16(dev, 0x0043);
 443
 444         b43_phy_mask(dev, 0x0429, 0x7FFF);
 445         b43_phy_maskset(dev, 0x0001, 0x3FFF, 0x4000);
 446         b43_phy_set(dev, 0x0811, 0x000C);
 447         b43_phy_maskset(dev, 0x0812, 0xFFF3, 0x0004);
 448         b43_phy_mask(dev, 0x0802, ~(0x1 | 0x2));
 449         if (phy->rev >= 6) {
 450                 backup[12] = b43_phy_read(dev, 0x002E);
 451                 backup[13] = b43_phy_read(dev, 0x002F);
 452                 backup[14] = b43_phy_read(dev, 0x080F);
 453                 backup[15] = b43_phy_read(dev, 0x0810);
 454                 backup[16] = b43_phy_read(dev, 0x0801);
 455                 backup[17] = b43_phy_read(dev, 0x0060);
 456                 backup[18] = b43_phy_read(dev, 0x0014);
 457                 backup[19] = b43_phy_read(dev, 0x0478);
 458
 459                 b43_phy_write(dev, 0x002E, 0);
 460                 b43_phy_write(dev, 0x002F, 0);
 461                 b43_phy_write(dev, 0x080F, 0);
 462                 b43_phy_write(dev, 0x0810, 0);
 463                 b43_phy_set(dev, 0x0478, 0x0100);
 464                 b43_phy_set(dev, 0x0801, 0x0040);
 465                 b43_phy_set(dev, 0x0060, 0x0040);
 466                 b43_phy_set(dev, 0x0014, 0x0200);
 467         }
 468         b43_radio_set(dev, 0x007A, 0x0070);
 469         b43_radio_set(dev, 0x007A, 0x0080);
 470         udelay(30);
 471
 472         v47F = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
 473         if (v47F >= 0x20)
 474                 v47F -= 0x40;
 475         if (v47F == 31) {
 476                 for (i = 7; i >= 4; i--) {
 477                         b43_radio_write16(dev, 0x007B, i);
 478                         udelay(20);
 479                         v47F =
 480                             (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
 481                         if (v47F >= 0x20)
 482                                 v47F -= 0x40;
 483                         if (v47F < 31 && saved == 0xFFFF)
 484                                 saved = i;
 485                 }
 486                 if (saved == 0xFFFF)
 487                         saved = 4;
 488         } else {
 489                 b43_radio_mask(dev, 0x007A, 0x007F);
 490                 if (phy->rev != 1) {    /* Not in specs, but needed to prevent PPC machine check */
 491                         b43_phy_set(dev, 0x0814, 0x0001);
 492                         b43_phy_mask(dev, 0x0815, 0xFFFE);
 493                 }
 494                 b43_phy_set(dev, 0x0811, 0x000C);
 495                 b43_phy_set(dev, 0x0812, 0x000C);
 496                 b43_phy_set(dev, 0x0811, 0x0030);
 497                 b43_phy_set(dev, 0x0812, 0x0030);
 498                 b43_phy_write(dev, 0x005A, 0x0480);
 499                 b43_phy_write(dev, 0x0059, 0x0810);
 500                 b43_phy_write(dev, 0x0058, 0x000D);
 501                 if (phy->rev == 0) {
 502                         b43_phy_write(dev, 0x0003, 0x0122);
 503                 } else {
 504                         b43_phy_set(dev, 0x000A, 0x2000);
 505                 }
 506                 if (phy->rev != 1) {    /* Not in specs, but needed to prevent PPC machine check */
 507                         b43_phy_set(dev, 0x0814, 0x0004);
 508                         b43_phy_mask(dev, 0x0815, 0xFFFB);
 509                 }
 510                 b43_phy_maskset(dev, 0x0003, 0xFF9F, 0x0040);
 511                 b43_radio_set(dev, 0x007A, 0x000F);
 512                 b43_set_all_gains(dev, 3, 0, 1);
 513                 b43_radio_maskset(dev, 0x0043, 0x00F0, 0x000F);
 514                 udelay(30);
 515                 v47F = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
 516                 if (v47F >= 0x20)
 517                         v47F -= 0x40;
 518                 if (v47F == -32) {
 519                         for (i = 0; i < 4; i++) {
 520                                 b43_radio_write16(dev, 0x007B, i);
 521                                 udelay(20);
 522                                 v47F =
 523                                     (s16) ((b43_phy_read(dev, 0x047F) >> 8) &
 524                                            0x003F);
 525                                 if (v47F >= 0x20)
 526                                         v47F -= 0x40;
 527                                 if (v47F > -31 && saved == 0xFFFF)
 528                                         saved = i;
 529                         }
 530                         if (saved == 0xFFFF)
 531                                 saved = 3;
 532                 } else
 533                         saved = 0;
 534         }
 535         b43_radio_write16(dev, 0x007B, saved);
 536
 537         if (phy->rev >= 6) {
 538                 b43_phy_write(dev, 0x002E, backup[12]);
 539                 b43_phy_write(dev, 0x002F, backup[13]);
 540                 b43_phy_write(dev, 0x080F, backup[14]);
 541                 b43_phy_write(dev, 0x0810, backup[15]);
 542         }
 543         if (phy->rev != 1) {    /* Not in specs, but needed to prevent PPC machine check */
 544                 b43_phy_write(dev, 0x0814, backup[3]);
 545                 b43_phy_write(dev, 0x0815, backup[4]);
 546         }
 547         b43_phy_write(dev, 0x005A, backup[5]);
 548         b43_phy_write(dev, 0x0059, backup[6]);
 549         b43_phy_write(dev, 0x0058, backup[7]);
 550         b43_phy_write(dev, 0x000A, backup[8]);
 551         b43_phy_write(dev, 0x0003, backup[9]);
 552         b43_radio_write16(dev, 0x0043, backup[11]);
 553         b43_radio_write16(dev, 0x007A, backup[10]);
 554         b43_phy_write(dev, 0x0802, b43_phy_read(dev, 0x0802) | 0x1 | 0x2);
 555         b43_phy_set(dev, 0x0429, 0x8000);
 556         b43_set_original_gains(dev);
 557         if (phy->rev >= 6) {
 558                 b43_phy_write(dev, 0x0801, backup[16]);
 559                 b43_phy_write(dev, 0x0060, backup[17]);
 560                 b43_phy_write(dev, 0x0014, backup[18]);
 561                 b43_phy_write(dev, 0x0478, backup[19]);
 562         }
 563         b43_phy_write(dev, 0x0001, backup[0]);
 564         b43_phy_write(dev, 0x0812, backup[2]);
 565         b43_phy_write(dev, 0x0811, backup[1]);
 566 }
 567
 568 static void b43_calc_nrssi_slope(struct b43_wldev *dev)
 569 {
 570         struct b43_phy *phy = &dev->phy;
 571         struct b43_phy_g *gphy = phy->g;
 572         u16 backup[18] = { 0 };
 573         u16 tmp;
 574         s16 nrssi0, nrssi1;
 575
 576         B43_WARN_ON(phy->type != B43_PHYTYPE_G);
 577
 578         if (phy->radio_rev >= 9)
 579                 return;
 580         if (phy->radio_rev == 8)
 581                 b43_calc_nrssi_offset(dev);
 582
 583         b43_phy_mask(dev, B43_PHY_G_CRS, 0x7FFF);
 584         b43_phy_mask(dev, 0x0802, 0xFFFC);
 585         backup[7] = b43_read16(dev, 0x03E2);
 586         b43_write16(dev, 0x03E2, b43_read16(dev, 0x03E2) | 0x8000);
 587         backup[0] = b43_radio_read16(dev, 0x007A);
 588         backup[1] = b43_radio_read16(dev, 0x0052);
 589         backup[2] = b43_radio_read16(dev, 0x0043);
 590         backup[3] = b43_phy_read(dev, 0x0015);
 591         backup[4] = b43_phy_read(dev, 0x005A);
 592         backup[5] = b43_phy_read(dev, 0x0059);
 593         backup[6] = b43_phy_read(dev, 0x0058);
 594         backup[8] = b43_read16(dev, 0x03E6);
 595         backup[9] = b43_read16(dev, B43_MMIO_CHANNEL_EXT);
 596         if (phy->rev >= 3) {
 597                 backup[10] = b43_phy_read(dev, 0x002E);
 598                 backup[11] = b43_phy_read(dev, 0x002F);
 599                 backup[12] = b43_phy_read(dev, 0x080F);
 600                 backup[13] = b43_phy_read(dev, B43_PHY_G_LO_CONTROL);
 601                 backup[14] = b43_phy_read(dev, 0x0801);
 602                 backup[15] = b43_phy_read(dev, 0x0060);
 603                 backup[16] = b43_phy_read(dev, 0x0014);
 604                 backup[17] = b43_phy_read(dev, 0x0478);
 605                 b43_phy_write(dev, 0x002E, 0);
 606                 b43_phy_write(dev, B43_PHY_G_LO_CONTROL, 0);
 607                 switch (phy->rev) {
 608                 case 4:
 609                 case 6:
 610                 case 7:
 611                         b43_phy_set(dev, 0x0478, 0x0100);
 612                         b43_phy_set(dev, 0x0801, 0x0040);
 613                         break;
 614                 case 3:
 615                 case 5:
 616                         b43_phy_mask(dev, 0x0801, 0xFFBF);
 617                         break;
 618                 }
 619                 b43_phy_set(dev, 0x0060, 0x0040);
 620                 b43_phy_set(dev, 0x0014, 0x0200);
 621         }
 622         b43_radio_set(dev, 0x007A, 0x0070);
 623         b43_set_all_gains(dev, 0, 8, 0);
 624         b43_radio_mask(dev, 0x007A, 0x00F7);
 625         if (phy->rev >= 2) {
 626                 b43_phy_maskset(dev, 0x0811, 0xFFCF, 0x0030);
 627                 b43_phy_maskset(dev, 0x0812, 0xFFCF, 0x0010);
 628         }
 629         b43_radio_set(dev, 0x007A, 0x0080);
 630         udelay(20);
 631
 632         nrssi0 = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
 633         if (nrssi0 >= 0x0020)
 634                 nrssi0 -= 0x0040;
 635
 636         b43_radio_mask(dev, 0x007A, 0x007F);
 637         if (phy->rev >= 2) {
 638                 b43_phy_maskset(dev, 0x0003, 0xFF9F, 0x0040);
 639         }
 640
 641         b43_write16(dev, B43_MMIO_CHANNEL_EXT,
 642                     b43_read16(dev, B43_MMIO_CHANNEL_EXT)
 643                     | 0x2000);
 644         b43_radio_set(dev, 0x007A, 0x000F);
 645         b43_phy_write(dev, 0x0015, 0xF330);
 646         if (phy->rev >= 2) {
 647                 b43_phy_maskset(dev, 0x0812, 0xFFCF, 0x0020);
 648                 b43_phy_maskset(dev, 0x0811, 0xFFCF, 0x0020);
 649         }
 650
 651         b43_set_all_gains(dev, 3, 0, 1);
 652         if (phy->radio_rev == 8) {
 653                 b43_radio_write16(dev, 0x0043, 0x001F);
 654         } else {
 655                 tmp = b43_radio_read16(dev, 0x0052) & 0xFF0F;
 656                 b43_radio_write16(dev, 0x0052, tmp | 0x0060);
 657                 tmp = b43_radio_read16(dev, 0x0043) & 0xFFF0;
 658                 b43_radio_write16(dev, 0x0043, tmp | 0x0009);
 659         }
 660         b43_phy_write(dev, 0x005A, 0x0480);
 661         b43_phy_write(dev, 0x0059, 0x0810);
 662         b43_phy_write(dev, 0x0058, 0x000D);
 663         udelay(20);
 664         nrssi1 = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
 665         if (nrssi1 >= 0x0020)
 666                 nrssi1 -= 0x0040;
 667         if (nrssi0 == nrssi1)
 668                 gphy->nrssislope = 0x00010000;
 669         else
 670                 gphy->nrssislope = 0x00400000 / (nrssi0 - nrssi1);
 671         if (nrssi0 >= -4) {
 672                 gphy->nrssi[0] = nrssi1;
 673                 gphy->nrssi[1] = nrssi0;
 674         }
 675         if (phy->rev >= 3) {
 676                 b43_phy_write(dev, 0x002E, backup[10]);
 677                 b43_phy_write(dev, 0x002F, backup[11]);
 678                 b43_phy_write(dev, 0x080F, backup[12]);
 679                 b43_phy_write(dev, B43_PHY_G_LO_CONTROL, backup[13]);
 680         }
 681         if (phy->rev >= 2) {
 682                 b43_phy_mask(dev, 0x0812, 0xFFCF);
 683                 b43_phy_mask(dev, 0x0811, 0xFFCF);
 684         }
 685
 686         b43_radio_write16(dev, 0x007A, backup[0]);
 687         b43_radio_write16(dev, 0x0052, backup[1]);
 688         b43_radio_write16(dev, 0x0043, backup[2]);
 689         b43_write16(dev, 0x03E2, backup[7]);
 690         b43_write16(dev, 0x03E6, backup[8]);
 691         b43_write16(dev, B43_MMIO_CHANNEL_EXT, backup[9]);
 692         b43_phy_write(dev, 0x0015, backup[3]);
 693         b43_phy_write(dev, 0x005A, backup[4]);
 694         b43_phy_write(dev, 0x0059, backup[5]);
 695         b43_phy_write(dev, 0x0058, backup[6]);
 696         b43_synth_pu_workaround(dev, phy->channel);
 697         b43_phy_set(dev, 0x0802, (0x0001 | 0x0002));
 698         b43_set_original_gains(dev);
 699         b43_phy_set(dev, B43_PHY_G_CRS, 0x8000);
 700         if (phy->rev >= 3) {
 701                 b43_phy_write(dev, 0x0801, backup[14]);
 702                 b43_phy_write(dev, 0x0060, backup[15]);
 703                 b43_phy_write(dev, 0x0014, backup[16]);
 704                 b43_phy_write(dev, 0x0478, backup[17]);
 705         }
 706         b43_nrssi_mem_update(dev);
 707         b43_calc_nrssi_threshold(dev);
 708 }
 709
 710 static void b43_calc_nrssi_threshold(struct b43_wldev *dev)
 711 {
 712         struct b43_phy *phy = &dev->phy;
 713         struct b43_phy_g *gphy = phy->g;
 714         s32 a, b;
 715         s16 tmp16;
 716         u16 tmp_u16;
 717
 718         B43_WARN_ON(phy->type != B43_PHYTYPE_G);
 719
 720         if (!phy->gmode ||
 721             !(dev->dev->bus->sprom.boardflags_lo & B43_BFL_RSSI)) {
 722                 tmp16 = b43_nrssi_hw_read(dev, 0x20);
 723                 if (tmp16 >= 0x20)
 724                         tmp16 -= 0x40;
 725                 if (tmp16 < 3) {
 726                         b43_phy_maskset(dev, 0x048A, 0xF000, 0x09EB);
 727                 } else {
 728                         b43_phy_maskset(dev, 0x048A, 0xF000, 0x0AED);
 729                 }
 730         } else {
 731                 if (gphy->interfmode == B43_INTERFMODE_NONWLAN) {
 732                         a = 0xE;
 733                         b = 0xA;
 734                 } else if (!gphy->aci_wlan_automatic && gphy->aci_enable) {
 735                         a = 0x13;
 736                         b = 0x12;
 737                 } else {
 738                         a = 0xE;
 739                         b = 0x11;
 740                 }
 741
 742                 a = a * (gphy->nrssi[1] - gphy->nrssi[0]);
 743                 a += (gphy->nrssi[0] << 6);
 744                 if (a < 32)
 745                         a += 31;
 746                 else
 747                         a += 32;
 748                 a = a >> 6;
 749                 a = clamp_val(a, -31, 31);
 750
 751                 b = b * (gphy->nrssi[1] - gphy->nrssi[0]);
 752                 b += (gphy->nrssi[0] << 6);
 753                 if (b < 32)
 754                         b += 31;
 755                 else
 756                         b += 32;
 757                 b = b >> 6;
 758                 b = clamp_val(b, -31, 31);
 759
 760                 tmp_u16 = b43_phy_read(dev, 0x048A) & 0xF000;
 761                 tmp_u16 |= ((u32) b & 0x0000003F);
 762                 tmp_u16 |= (((u32) a & 0x0000003F) << 6);
 763                 b43_phy_write(dev, 0x048A, tmp_u16);
 764         }
 765 }
 766
 767 /* Stack implementation to save/restore values from the
 768  * interference mitigation code.
 769  * It is save to restore values in random order.
 770  */
 771 static void _stack_save(u32 *_stackptr, size_t *stackidx,
 772                         u8 id, u16 offset, u16 value)
 773 {
 774         u32 *stackptr = &(_stackptr[*stackidx]);
 775
 776         B43_WARN_ON(offset & 0xF000);
 777         B43_WARN_ON(id & 0xF0);
 778         *stackptr = offset;
 779         *stackptr |= ((u32) id) << 12;
 780         *stackptr |= ((u32) value) << 16;
 781         (*stackidx)++;
 782         B43_WARN_ON(*stackidx >= B43_INTERFSTACK_SIZE);
 783 }
 784
 785 static u16 _stack_restore(u32 *stackptr, u8 id, u16 offset)
 786 {
 787         size_t i;
 788
 789         B43_WARN_ON(offset & 0xF000);
 790         B43_WARN_ON(id & 0xF0);
 791         for (i = 0; i < B43_INTERFSTACK_SIZE; i++, stackptr++) {
 792                 if ((*stackptr & 0x00000FFF) != offset)
 793                         continue;
 794                 if (((*stackptr & 0x0000F000) >> 12) != id)
 795                         continue;
 796                 return ((*stackptr & 0xFFFF0000) >> 16);
 797         }
 798         B43_WARN_ON(1);
 799
 800         return 0;
 801 }
 802
 803 #define phy_stacksave(offset)                                   \
 804         do {                                                    \
 805                 _stack_save(stack, &stackidx, 0x1, (offset),    \
 806                             b43_phy_read(dev, (offset)));       \
 807         } while (0)
 808 #define phy_stackrestore(offset)                                \
 809         do {                                                    \
 810                 b43_phy_write(dev, (offset),            \
 811                                   _stack_restore(stack, 0x1,    \
 812                                                  (offset)));    \
 813         } while (0)
 814 #define radio_stacksave(offset)                                         \
 815         do {                                                            \
 816                 _stack_save(stack, &stackidx, 0x2, (offset),            \
 817                             b43_radio_read16(dev, (offset)));   \
 818         } while (0)
 819 #define radio_stackrestore(offset)                                      \
 820         do {                                                            \
 821                 b43_radio_write16(dev, (offset),                        \
 822                                       _stack_restore(stack, 0x2,        \
 823                                                      (offset)));        \
 824         } while (0)
 825 #define ofdmtab_stacksave(table, offset)                        \
 826         do {                                                    \
 827                 _stack_save(stack, &stackidx, 0x3, (offset)|(table),    \
 828                             b43_ofdmtab_read16(dev, (table), (offset)));        \
 829         } while (0)
 830 #define ofdmtab_stackrestore(table, offset)                     \
 831         do {                                                    \
 832                 b43_ofdmtab_write16(dev, (table),       (offset),       \
 833                                   _stack_restore(stack, 0x3,    \
 834                                                  (offset)|(table)));    \
 835         } while (0)
 836
 837 static void
 838 b43_radio_interference_mitigation_enable(struct b43_wldev *dev, int mode)
 839 {
 840         struct b43_phy *phy = &dev->phy;
 841         struct b43_phy_g *gphy = phy->g;
 842         u16 tmp, flipped;
 843         size_t stackidx = 0;
 844         u32 *stack = gphy->interfstack;
 845
 846         switch (mode) {
 847         case B43_INTERFMODE_NONWLAN:
 848                 if (phy->rev != 1) {
 849                         b43_phy_set(dev, 0x042B, 0x0800);
 850                         b43_phy_mask(dev, B43_PHY_G_CRS, ~0x4000);
 851                         break;
 852                 }
 853                 radio_stacksave(0x0078);
 854                 tmp = (b43_radio_read16(dev, 0x0078) & 0x001E);
 855                 B43_WARN_ON(tmp > 15);
 856                 flipped = bitrev4(tmp);
 857                 if (flipped < 10 && flipped >= 8)
 858                         flipped = 7;
 859                 else if (flipped >= 10)
 860                         flipped -= 3;
 861                 flipped = (bitrev4(flipped) << 1) | 0x0020;
 862                 b43_radio_write16(dev, 0x0078, flipped);
 863
 864                 b43_calc_nrssi_threshold(dev);
 865
 866                 phy_stacksave(0x0406);
 867                 b43_phy_write(dev, 0x0406, 0x7E28);
 868
 869                 b43_phy_set(dev, 0x042B, 0x0800);
 870                 b43_phy_set(dev, B43_PHY_RADIO_BITFIELD, 0x1000);
 871
 872                 phy_stacksave(0x04A0);
 873                 b43_phy_maskset(dev, 0x04A0, 0xC0C0, 0x0008);
 874                 phy_stacksave(0x04A1);
 875                 b43_phy_maskset(dev, 0x04A1, 0xC0C0, 0x0605);
 876                 phy_stacksave(0x04A2);
 877                 b43_phy_maskset(dev, 0x04A2, 0xC0C0, 0x0204);
 878                 phy_stacksave(0x04A8);
 879                 b43_phy_maskset(dev, 0x04A8, 0xC0C0, 0x0803);
 880                 phy_stacksave(0x04AB);
 881                 b43_phy_maskset(dev, 0x04AB, 0xC0C0, 0x0605);
 882
 883                 phy_stacksave(0x04A7);
 884                 b43_phy_write(dev, 0x04A7, 0x0002);
 885                 phy_stacksave(0x04A3);
 886                 b43_phy_write(dev, 0x04A3, 0x287A);
 887                 phy_stacksave(0x04A9);
 888                 b43_phy_write(dev, 0x04A9, 0x2027);
 889                 phy_stacksave(0x0493);
 890                 b43_phy_write(dev, 0x0493, 0x32F5);
 891                 phy_stacksave(0x04AA);
 892                 b43_phy_write(dev, 0x04AA, 0x2027);
 893                 phy_stacksave(0x04AC);
 894                 b43_phy_write(dev, 0x04AC, 0x32F5);
 895                 break;
 896         case B43_INTERFMODE_MANUALWLAN:
 897                 if (b43_phy_read(dev, 0x0033) & 0x0800)
 898                         break;
 899
 900                 gphy->aci_enable = 1;
 901
 902                 phy_stacksave(B43_PHY_RADIO_BITFIELD);
 903                 phy_stacksave(B43_PHY_G_CRS);
 904                 if (phy->rev < 2) {
 905                         phy_stacksave(0x0406);
 906                 } else {
 907                         phy_stacksave(0x04C0);
 908                         phy_stacksave(0x04C1);
 909                 }
 910                 phy_stacksave(0x0033);
 911                 phy_stacksave(0x04A7);
 912                 phy_stacksave(0x04A3);
 913                 phy_stacksave(0x04A9);
 914                 phy_stacksave(0x04AA);
 915                 phy_stacksave(0x04AC);
 916                 phy_stacksave(0x0493);
 917                 phy_stacksave(0x04A1);
 918                 phy_stacksave(0x04A0);
 919                 phy_stacksave(0x04A2);
 920                 phy_stacksave(0x048A);
 921                 phy_stacksave(0x04A8);
 922                 phy_stacksave(0x04AB);
 923                 if (phy->rev == 2) {
 924                         phy_stacksave(0x04AD);
 925                         phy_stacksave(0x04AE);
 926                 } else if (phy->rev >= 3) {
 927                         phy_stacksave(0x04AD);
 928                         phy_stacksave(0x0415);
 929                         phy_stacksave(0x0416);
 930                         phy_stacksave(0x0417);
 931                         ofdmtab_stacksave(0x1A00, 0x2);
 932                         ofdmtab_stacksave(0x1A00, 0x3);
 933                 }
 934                 phy_stacksave(0x042B);
 935                 phy_stacksave(0x048C);
 936
 937                 b43_phy_mask(dev, B43_PHY_RADIO_BITFIELD, ~0x1000);
 938                 b43_phy_maskset(dev, B43_PHY_G_CRS, 0xFFFC, 0x0002);
 939
 940                 b43_phy_write(dev, 0x0033, 0x0800);
 941                 b43_phy_write(dev, 0x04A3, 0x2027);
 942                 b43_phy_write(dev, 0x04A9, 0x1CA8);
 943                 b43_phy_write(dev, 0x0493, 0x287A);
 944                 b43_phy_write(dev, 0x04AA, 0x1CA8);
 945                 b43_phy_write(dev, 0x04AC, 0x287A);
 946
 947                 b43_phy_maskset(dev, 0x04A0, 0xFFC0, 0x001A);
 948                 b43_phy_write(dev, 0x04A7, 0x000D);
 949
 950                 if (phy->rev < 2) {
 951                         b43_phy_write(dev, 0x0406, 0xFF0D);
 952                 } else if (phy->rev == 2) {
 953                         b43_phy_write(dev, 0x04C0, 0xFFFF);
 954                         b43_phy_write(dev, 0x04C1, 0x00A9);
 955                 } else {
 956                         b43_phy_write(dev, 0x04C0, 0x00C1);
 957                         b43_phy_write(dev, 0x04C1, 0x0059);
 958                 }
 959
 960                 b43_phy_maskset(dev, 0x04A1, 0xC0FF, 0x1800);
 961                 b43_phy_maskset(dev, 0x04A1, 0xFFC0, 0x0015);
 962                 b43_phy_maskset(dev, 0x04A8, 0xCFFF, 0x1000);
 963                 b43_phy_maskset(dev, 0x04A8, 0xF0FF, 0x0A00);
 964                 b43_phy_maskset(dev, 0x04AB, 0xCFFF, 0x1000);
 965                 b43_phy_maskset(dev, 0x04AB, 0xF0FF, 0x0800);
 966                 b43_phy_maskset(dev, 0x04AB, 0xFFCF, 0x0010);
 967                 b43_phy_maskset(dev, 0x04AB, 0xFFF0, 0x0005);
 968                 b43_phy_maskset(dev, 0x04A8, 0xFFCF, 0x0010);
 969                 b43_phy_maskset(dev, 0x04A8, 0xFFF0, 0x0006);
 970                 b43_phy_maskset(dev, 0x04A2, 0xF0FF, 0x0800);
 971                 b43_phy_maskset(dev, 0x04A0, 0xF0FF, 0x0500);
 972                 b43_phy_maskset(dev, 0x04A2, 0xFFF0, 0x000B);
 973
 974                 if (phy->rev >= 3) {
 975                         b43_phy_mask(dev, 0x048A, 0x7FFF);
 976                         b43_phy_maskset(dev, 0x0415, 0x8000, 0x36D8);
 977                         b43_phy_maskset(dev, 0x0416, 0x8000, 0x36D8);
 978                         b43_phy_maskset(dev, 0x0417, 0xFE00, 0x016D);
 979                 } else {
 980                         b43_phy_set(dev, 0x048A, 0x1000);
 981                         b43_phy_maskset(dev, 0x048A, 0x9FFF, 0x2000);
 982                         b43_hf_write(dev, b43_hf_read(dev) | B43_HF_ACIW);
 983                 }
 984                 if (phy->rev >= 2) {
 985                         b43_phy_set(dev, 0x042B, 0x0800);
 986                 }
 987                 b43_phy_maskset(dev, 0x048C, 0xF0FF, 0x0200);
 988                 if (phy->rev == 2) {
 989                         b43_phy_maskset(dev, 0x04AE, 0xFF00, 0x007F);
 990                         b43_phy_maskset(dev, 0x04AD, 0x00FF, 0x1300);
 991                 } else if (phy->rev >= 6) {
 992                         b43_ofdmtab_write16(dev, 0x1A00, 0x3, 0x007F);
 993                         b43_ofdmtab_write16(dev, 0x1A00, 0x2, 0x007F);
 994                         b43_phy_mask(dev, 0x04AD, 0x00FF);
 995                 }
 996                 b43_calc_nrssi_slope(dev);
 997                 break;
 998         default:
 999                 B43_WARN_ON(1);
1000         }
1001 }
1002
1003 static void
1004 b43_radio_interference_mitigation_disable(struct b43_wldev *dev, int mode)
1005 {
1006         struct b43_phy *phy = &dev->phy;
1007         struct b43_phy_g *gphy = phy->g;
1008         u32 *stack = gphy->interfstack;
1009
1010         switch (mode) {
1011         case B43_INTERFMODE_NONWLAN:
1012                 if (phy->rev != 1) {
1013                         b43_phy_mask(dev, 0x042B, ~0x0800);
1014                         b43_phy_set(dev, B43_PHY_G_CRS, 0x4000);
1015                         break;
1016                 }
1017                 radio_stackrestore(0x0078);
1018                 b43_calc_nrssi_threshold(dev);
1019                 phy_stackrestore(0x0406);
1020                 b43_phy_mask(dev, 0x042B, ~0x0800);
1021                 if (!dev->bad_frames_preempt) {
1022                         b43_phy_mask(dev, B43_PHY_RADIO_BITFIELD, ~(1 << 11));
1023                 }
1024                 b43_phy_set(dev, B43_PHY_G_CRS, 0x4000);
1025                 phy_stackrestore(0x04A0);
1026                 phy_stackrestore(0x04A1);
1027                 phy_stackrestore(0x04A2);
1028                 phy_stackrestore(0x04A8);
1029                 phy_stackrestore(0x04AB);
1030                 phy_stackrestore(0x04A7);
1031                 phy_stackrestore(0x04A3);
1032                 phy_stackrestore(0x04A9);
1033                 phy_stackrestore(0x0493);
1034                 phy_stackrestore(0x04AA);
1035                 phy_stackrestore(0x04AC);
1036                 break;
1037         case B43_INTERFMODE_MANUALWLAN:
1038                 if (!(b43_phy_read(dev, 0x0033) & 0x0800))
1039                         break;
1040
1041                 gphy->aci_enable = 0;
1042
1043                 phy_stackrestore(B43_PHY_RADIO_BITFIELD);
1044                 phy_stackrestore(B43_PHY_G_CRS);
1045                 phy_stackrestore(0x0033);
1046                 phy_stackrestore(0x04A3);
1047                 phy_stackrestore(0x04A9);
1048                 phy_stackrestore(0x0493);
1049                 phy_stackrestore(0x04AA);
1050                 phy_stackrestore(0x04AC);
1051                 phy_stackrestore(0x04A0);
1052                 phy_stackrestore(0x04A7);
1053                 if (phy->rev >= 2) {
1054                         phy_stackrestore(0x04C0);
1055                         phy_stackrestore(0x04C1);
1056                 } else
1057                         phy_stackrestore(0x0406);
1058                 phy_stackrestore(0x04A1);
1059                 phy_stackrestore(0x04AB);
1060                 phy_stackrestore(0x04A8);
1061                 if (phy->rev == 2) {
1062                         phy_stackrestore(0x04AD);
1063                         phy_stackrestore(0x04AE);
1064                 } else if (phy->rev >= 3) {
1065                         phy_stackrestore(0x04AD);
1066                         phy_stackrestore(0x0415);
1067                         phy_stackrestore(0x0416);
1068                         phy_stackrestore(0x0417);
1069                         ofdmtab_stackrestore(0x1A00, 0x2);
1070                         ofdmtab_stackrestore(0x1A00, 0x3);
1071                 }
1072                 phy_stackrestore(0x04A2);
1073                 phy_stackrestore(0x048A);
1074                 phy_stackrestore(0x042B);
1075                 phy_stackrestore(0x048C);
1076                 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_ACIW);
1077                 b43_calc_nrssi_slope(dev);
1078                 break;
1079         default:
1080                 B43_WARN_ON(1);
1081         }
1082 }
1083
1084 #undef phy_stacksave
1085 #undef phy_stackrestore
1086 #undef radio_stacksave
1087 #undef radio_stackrestore
1088 #undef ofdmtab_stacksave
1089 #undef ofdmtab_stackrestore
1090
1091 static u16 b43_radio_core_calibration_value(struct b43_wldev *dev)
1092 {
1093         u16 reg, index, ret;
1094
1095         static const u8 rcc_table[] = {
1096                 0x02, 0x03, 0x01, 0x0F,
1097                 0x06, 0x07, 0x05, 0x0F,
1098                 0x0A, 0x0B, 0x09, 0x0F,
1099                 0x0E, 0x0F, 0x0D, 0x0F,
1100         };
1101
1102         reg = b43_radio_read16(dev, 0x60);
1103         index = (reg & 0x001E) >> 1;
1104         ret = rcc_table[index] << 1;
1105         ret |= (reg & 0x0001);
1106         ret |= 0x0020;
1107
1108         return ret;
1109 }
1110
1111 #define LPD(L, P, D)    (((L) << 2) | ((P) << 1) | ((D) << 0))
1112 static u16 radio2050_rfover_val(struct b43_wldev *dev,
1113                                 u16 phy_register, unsigned int lpd)
1114 {
1115         struct b43_phy *phy = &dev->phy;
1116         struct b43_phy_g *gphy = phy->g;
1117         struct ssb_sprom *sprom = &(dev->dev->bus->sprom);
1118
1119         if (!phy->gmode)
1120                 return 0;
1121
1122         if (has_loopback_gain(phy)) {
1123                 int max_lb_gain = gphy->max_lb_gain;
1124                 u16 extlna;
1125                 u16 i;
1126
1127                 if (phy->radio_rev == 8)
1128                         max_lb_gain += 0x3E;
1129                 else
1130                         max_lb_gain += 0x26;
1131                 if (max_lb_gain >= 0x46) {
1132                         extlna = 0x3000;
1133                         max_lb_gain -= 0x46;
1134                 } else if (max_lb_gain >= 0x3A) {
1135                         extlna = 0x1000;
1136                         max_lb_gain -= 0x3A;
1137                 } else if (max_lb_gain >= 0x2E) {
1138                         extlna = 0x2000;
1139                         max_lb_gain -= 0x2E;
1140                 } else {
1141                         extlna = 0;
1142                         max_lb_gain -= 0x10;
1143                 }
1144
1145                 for (i = 0; i < 16; i++) {
1146                         max_lb_gain -= (i * 6);
1147                         if (max_lb_gain < 6)
1148                                 break;
1149                 }
1150
1151                 if ((phy->rev < 7) ||
1152                     !(sprom->boardflags_lo & B43_BFL_EXTLNA)) {
1153                         if (phy_register == B43_PHY_RFOVER) {
1154                                 return 0x1B3;
1155                         } else if (phy_register == B43_PHY_RFOVERVAL) {
1156                                 extlna |= (i << 8);
1157                                 switch (lpd) {
1158                                 case LPD(0, 1, 1):
1159                                         return 0x0F92;
1160                                 case LPD(0, 0, 1):
1161                                 case LPD(1, 0, 1):
1162                                         return (0x0092 | extlna);
1163                                 case LPD(1, 0, 0):
1164                                         return (0x0093 | extlna);
1165                                 }
1166                                 B43_WARN_ON(1);
1167                         }
1168                         B43_WARN_ON(1);
1169                 } else {
1170                         if (phy_register == B43_PHY_RFOVER) {
1171                                 return 0x9B3;
1172                         } else if (phy_register == B43_PHY_RFOVERVAL) {
1173                                 if (extlna)
1174                                         extlna |= 0x8000;
1175                                 extlna |= (i << 8);
1176                                 switch (lpd) {
1177                                 case LPD(0, 1, 1):
1178                                         return 0x8F92;
1179                                 case LPD(0, 0, 1):
1180                                         return (0x8092 | extlna);
1181                                 case LPD(1, 0, 1):
1182                                         return (0x2092 | extlna);
1183                                 case LPD(1, 0, 0):
1184                                         return (0x2093 | extlna);
1185                                 }
1186                                 B43_WARN_ON(1);
1187                         }
1188                         B43_WARN_ON(1);
1189                 }
1190         } else {
1191                 if ((phy->rev < 7) ||
1192                     !(sprom->boardflags_lo & B43_BFL_EXTLNA)) {
1193                         if (phy_register == B43_PHY_RFOVER) {
1194                                 return 0x1B3;
1195                         } else if (phy_register == B43_PHY_RFOVERVAL) {
1196                                 switch (lpd) {
1197                                 case LPD(0, 1, 1):
1198                                         return 0x0FB2;
1199                                 case LPD(0, 0, 1):
1200                                         return 0x00B2;
1201                                 case LPD(1, 0, 1):
1202                                         return 0x30B2;
1203                                 case LPD(1, 0, 0):
1204                                         return 0x30B3;
1205                                 }
1206                                 B43_WARN_ON(1);
1207                         }
1208                         B43_WARN_ON(1);
1209                 } else {
1210                         if (phy_register == B43_PHY_RFOVER) {
1211                                 return 0x9B3;
1212                         } else if (phy_register == B43_PHY_RFOVERVAL) {
1213                                 switch (lpd) {
1214                                 case LPD(0, 1, 1):
1215                                         return 0x8FB2;
1216                                 case LPD(0, 0, 1):
1217                                         return 0x80B2;
1218                                 case LPD(1, 0, 1):
1219                                         return 0x20B2;
1220                                 case LPD(1, 0, 0):
1221                                         return 0x20B3;
1222                                 }
1223                                 B43_WARN_ON(1);
1224                         }
1225                         B43_WARN_ON(1);
1226                 }
1227         }
1228         return 0;
1229 }
1230
1231 struct init2050_saved_values {
1232         /* Core registers */
1233         u16 reg_3EC;
1234         u16 reg_3E6;
1235         u16 reg_3F4;
1236         /* Radio registers */
1237         u16 radio_43;
1238         u16 radio_51;
1239         u16 radio_52;
1240         /* PHY registers */
1241         u16 phy_pgactl;
1242         u16 phy_cck_5A;
1243         u16 phy_cck_59;
1244         u16 phy_cck_58;
1245         u16 phy_cck_30;
1246         u16 phy_rfover;
1247         u16 phy_rfoverval;
1248         u16 phy_analogover;
1249         u16 phy_analogoverval;
1250         u16 phy_crs0;
1251         u16 phy_classctl;
1252         u16 phy_lo_mask;
1253         u16 phy_lo_ctl;
1254         u16 phy_syncctl;
1255 };
1256
1257 static u16 b43_radio_init2050(struct b43_wldev *dev)
1258 {
1259         struct b43_phy *phy = &dev->phy;
1260         struct init2050_saved_values sav;
1261         u16 rcc;
1262         u16 radio78;
1263         u16 ret;
1264         u16 i, j;
1265         u32 tmp1 = 0, tmp2 = 0;
1266
1267         memset(&sav, 0, sizeof(sav));   /* get rid of "may be used uninitialized..." */
1268
1269         sav.radio_43 = b43_radio_read16(dev, 0x43);
1270         sav.radio_51 = b43_radio_read16(dev, 0x51);
1271         sav.radio_52 = b43_radio_read16(dev, 0x52);
1272         sav.phy_pgactl = b43_phy_read(dev, B43_PHY_PGACTL);
1273         sav.phy_cck_5A = b43_phy_read(dev, B43_PHY_CCK(0x5A));
1274         sav.phy_cck_59 = b43_phy_read(dev, B43_PHY_CCK(0x59));
1275         sav.phy_cck_58 = b43_phy_read(dev, B43_PHY_CCK(0x58));
1276
1277         if (phy->type == B43_PHYTYPE_B) {
1278                 sav.phy_cck_30 = b43_phy_read(dev, B43_PHY_CCK(0x30));
1279                 sav.reg_3EC = b43_read16(dev, 0x3EC);
1280
1281                 b43_phy_write(dev, B43_PHY_CCK(0x30), 0xFF);
1282                 b43_write16(dev, 0x3EC, 0x3F3F);
1283         } else if (phy->gmode || phy->rev >= 2) {
1284                 sav.phy_rfover = b43_phy_read(dev, B43_PHY_RFOVER);
1285                 sav.phy_rfoverval = b43_phy_read(dev, B43_PHY_RFOVERVAL);
1286                 sav.phy_analogover = b43_phy_read(dev, B43_PHY_ANALOGOVER);
1287                 sav.phy_analogoverval =
1288                     b43_phy_read(dev, B43_PHY_ANALOGOVERVAL);
1289                 sav.phy_crs0 = b43_phy_read(dev, B43_PHY_CRS0);
1290                 sav.phy_classctl = b43_phy_read(dev, B43_PHY_CLASSCTL);
1291
1292                 b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0003);
1293                 b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFC);
1294                 b43_phy_mask(dev, B43_PHY_CRS0, 0x7FFF);
1295                 b43_phy_mask(dev, B43_PHY_CLASSCTL, 0xFFFC);
1296                 if (has_loopback_gain(phy)) {
1297                         sav.phy_lo_mask = b43_phy_read(dev, B43_PHY_LO_MASK);
1298                         sav.phy_lo_ctl = b43_phy_read(dev, B43_PHY_LO_CTL);
1299
1300                         if (phy->rev >= 3)
1301                                 b43_phy_write(dev, B43_PHY_LO_MASK, 0xC020);
1302                         else
1303                                 b43_phy_write(dev, B43_PHY_LO_MASK, 0x8020);
1304                         b43_phy_write(dev, B43_PHY_LO_CTL, 0);
1305                 }
1306
1307                 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1308                               radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
1309                                                    LPD(0, 1, 1)));
1310                 b43_phy_write(dev, B43_PHY_RFOVER,
1311                               radio2050_rfover_val(dev, B43_PHY_RFOVER, 0));
1312         }
1313         b43_write16(dev, 0x3E2, b43_read16(dev, 0x3E2) | 0x8000);
1314
1315         sav.phy_syncctl = b43_phy_read(dev, B43_PHY_SYNCCTL);
1316         b43_phy_mask(dev, B43_PHY_SYNCCTL, 0xFF7F);
1317         sav.reg_3E6 = b43_read16(dev, 0x3E6);
1318         sav.reg_3F4 = b43_read16(dev, 0x3F4);
1319
1320         if (phy->analog == 0) {
1321                 b43_write16(dev, 0x03E6, 0x0122);
1322         } else {
1323                 if (phy->analog >= 2) {
1324                         b43_phy_maskset(dev, B43_PHY_CCK(0x03), 0xFFBF, 0x40);
1325                 }
1326                 b43_write16(dev, B43_MMIO_CHANNEL_EXT,
1327                             (b43_read16(dev, B43_MMIO_CHANNEL_EXT) | 0x2000));
1328         }
1329
1330         rcc = b43_radio_core_calibration_value(dev);
1331
1332         if (phy->type == B43_PHYTYPE_B)
1333                 b43_radio_write16(dev, 0x78, 0x26);
1334         if (phy->gmode || phy->rev >= 2) {
1335                 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1336                               radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
1337                                                    LPD(0, 1, 1)));
1338         }
1339         b43_phy_write(dev, B43_PHY_PGACTL, 0xBFAF);
1340         b43_phy_write(dev, B43_PHY_CCK(0x2B), 0x1403);
1341         if (phy->gmode || phy->rev >= 2) {
1342                 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1343                               radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
1344                                                    LPD(0, 0, 1)));
1345         }
1346         b43_phy_write(dev, B43_PHY_PGACTL, 0xBFA0);
1347         b43_radio_set(dev, 0x51, 0x0004);
1348         if (phy->radio_rev == 8) {
1349                 b43_radio_write16(dev, 0x43, 0x1F);
1350         } else {
1351                 b43_radio_write16(dev, 0x52, 0);
1352                 b43_radio_maskset(dev, 0x43, 0xFFF0, 0x0009);
1353         }
1354         b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
1355
1356         for (i = 0; i < 16; i++) {
1357                 b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0480);
1358                 b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
1359                 b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
1360                 if (phy->gmode || phy->rev >= 2) {
1361                         b43_phy_write(dev, B43_PHY_RFOVERVAL,
1362                                       radio2050_rfover_val(dev,
1363                                                            B43_PHY_RFOVERVAL,
1364                                                            LPD(1, 0, 1)));
1365                 }
1366                 b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
1367                 udelay(10);
1368                 if (phy->gmode || phy->rev >= 2) {
1369                         b43_phy_write(dev, B43_PHY_RFOVERVAL,
1370                                       radio2050_rfover_val(dev,
1371                                                            B43_PHY_RFOVERVAL,
1372                                                            LPD(1, 0, 1)));
1373                 }
1374                 b43_phy_write(dev, B43_PHY_PGACTL, 0xEFB0);
1375                 udelay(10);
1376                 if (phy->gmode || phy->rev >= 2) {
1377                         b43_phy_write(dev, B43_PHY_RFOVERVAL,
1378                                       radio2050_rfover_val(dev,
1379                                                            B43_PHY_RFOVERVAL,
1380                                                            LPD(1, 0, 0)));
1381                 }
1382                 b43_phy_write(dev, B43_PHY_PGACTL, 0xFFF0);
1383                 udelay(20);
1384                 tmp1 += b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
1385                 b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
1386                 if (phy->gmode || phy->rev >= 2) {
1387                         b43_phy_write(dev, B43_PHY_RFOVERVAL,
1388                                       radio2050_rfover_val(dev,
1389                                                            B43_PHY_RFOVERVAL,
1390                                                            LPD(1, 0, 1)));
1391                 }
1392                 b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
1393         }
1394         udelay(10);
1395
1396         b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
1397         tmp1++;
1398         tmp1 >>= 9;
1399
1400         for (i = 0; i < 16; i++) {
1401                 radio78 = (bitrev4(i) << 1) | 0x0020;
1402                 b43_radio_write16(dev, 0x78, radio78);
1403                 udelay(10);
1404                 for (j = 0; j < 16; j++) {
1405                         b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0D80);
1406                         b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
1407                         b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
1408                         if (phy->gmode || phy->rev >= 2) {
1409                                 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1410                                               radio2050_rfover_val(dev,
1411                                                                    B43_PHY_RFOVERVAL,
1412                                                                    LPD(1, 0,
1413                                                                        1)));
1414                         }
1415                         b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
1416                         udelay(10);
1417                         if (phy->gmode || phy->rev >= 2) {
1418                                 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1419                                               radio2050_rfover_val(dev,
1420                                                                    B43_PHY_RFOVERVAL,
1421                                                                    LPD(1, 0,
1422                                                                        1)));
1423                         }
1424                         b43_phy_write(dev, B43_PHY_PGACTL, 0xEFB0);
1425                         udelay(10);
1426                         if (phy->gmode || phy->rev >= 2) {
1427                                 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1428                                               radio2050_rfover_val(dev,
1429                                                                    B43_PHY_RFOVERVAL,
1430                                                                    LPD(1, 0,
1431                                                                        0)));
1432                         }
1433                         b43_phy_write(dev, B43_PHY_PGACTL, 0xFFF0);
1434                         udelay(10);
1435                         tmp2 += b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
1436                         b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
1437                         if (phy->gmode || phy->rev >= 2) {
1438                                 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1439                                               radio2050_rfover_val(dev,
1440                                                                    B43_PHY_RFOVERVAL,
1441                                                                    LPD(1, 0,
1442                                                                        1)));
1443                         }
1444                         b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
1445                 }
1446                 tmp2++;
1447                 tmp2 >>= 8;
1448                 if (tmp1 < tmp2)
1449                         break;
1450         }
1451
1452         /* Restore the registers */
1453         b43_phy_write(dev, B43_PHY_PGACTL, sav.phy_pgactl);
1454         b43_radio_write16(dev, 0x51, sav.radio_51);
1455         b43_radio_write16(dev, 0x52, sav.radio_52);
1456         b43_radio_write16(dev, 0x43, sav.radio_43);
1457         b43_phy_write(dev, B43_PHY_CCK(0x5A), sav.phy_cck_5A);
1458         b43_phy_write(dev, B43_PHY_CCK(0x59), sav.phy_cck_59);
1459         b43_phy_write(dev, B43_PHY_CCK(0x58), sav.phy_cck_58);
1460         b43_write16(dev, 0x3E6, sav.reg_3E6);
1461         if (phy->analog != 0)
1462                 b43_write16(dev, 0x3F4, sav.reg_3F4);
1463         b43_phy_write(dev, B43_PHY_SYNCCTL, sav.phy_syncctl);
1464         b43_synth_pu_workaround(dev, phy->channel);
1465         if (phy->type == B43_PHYTYPE_B) {
1466                 b43_phy_write(dev, B43_PHY_CCK(0x30), sav.phy_cck_30);
1467                 b43_write16(dev, 0x3EC, sav.reg_3EC);
1468         } else if (phy->gmode) {
1469                 b43_write16(dev, B43_MMIO_PHY_RADIO,
1470                             b43_read16(dev, B43_MMIO_PHY_RADIO)
1471                             & 0x7FFF);
1472                 b43_phy_write(dev, B43_PHY_RFOVER, sav.phy_rfover);
1473                 b43_phy_write(dev, B43_PHY_RFOVERVAL, sav.phy_rfoverval);
1474                 b43_phy_write(dev, B43_PHY_ANALOGOVER, sav.phy_analogover);
1475                 b43_phy_write(dev, B43_PHY_ANALOGOVERVAL,
1476                               sav.phy_analogoverval);
1477                 b43_phy_write(dev, B43_PHY_CRS0, sav.phy_crs0);
1478                 b43_phy_write(dev, B43_PHY_CLASSCTL, sav.phy_classctl);
1479                 if (has_loopback_gain(phy)) {
1480                         b43_phy_write(dev, B43_PHY_LO_MASK, sav.phy_lo_mask);
1481                         b43_phy_write(dev, B43_PHY_LO_CTL, sav.phy_lo_ctl);
1482                 }
1483         }
1484         if (i > 15)
1485                 ret = radio78;
1486         else
1487                 ret = rcc;
1488
1489         return ret;
1490 }
1491
1492 static void b43_phy_initb5(struct b43_wldev *dev)
1493 {
1494         struct ssb_bus *bus = dev->dev->bus;
1495         struct b43_phy *phy = &dev->phy;
1496         struct b43_phy_g *gphy = phy->g;
1497         u16 offset, value;
1498         u8 old_channel;
1499
1500         if (phy->analog == 1) {
1501                 b43_radio_set(dev, 0x007A, 0x0050);
1502         }
1503         if ((bus->boardinfo.vendor != SSB_BOARDVENDOR_BCM) &&
1504             (bus->boardinfo.type != SSB_BOARD_BU4306)) {
1505                 value = 0x2120;
1506                 for (offset = 0x00A8; offset < 0x00C7; offset++) {
1507                         b43_phy_write(dev, offset, value);
1508                         value += 0x202;
1509                 }
1510         }
1511         b43_phy_maskset(dev, 0x0035, 0xF0FF, 0x0700);
1512         if (phy->radio_ver == 0x2050)
1513                 b43_phy_write(dev, 0x0038, 0x0667);
1514
1515         if (phy->gmode || phy->rev >= 2) {
1516                 if (phy->radio_ver == 0x2050) {
1517                         b43_radio_set(dev, 0x007A, 0x0020);
1518                         b43_radio_set(dev, 0x0051, 0x0004);
1519                 }
1520                 b43_write16(dev, B43_MMIO_PHY_RADIO, 0x0000);
1521
1522                 b43_phy_set(dev, 0x0802, 0x0100);
1523                 b43_phy_set(dev, 0x042B, 0x2000);
1524
1525                 b43_phy_write(dev, 0x001C, 0x186A);
1526
1527                 b43_phy_maskset(dev, 0x0013, 0x00FF, 0x1900);
1528                 b43_phy_maskset(dev, 0x0035, 0xFFC0, 0x0064);
1529                 b43_phy_maskset(dev, 0x005D, 0xFF80, 0x000A);
1530         }
1531
1532         if (dev->bad_frames_preempt) {
1533                 b43_phy_set(dev, B43_PHY_RADIO_BITFIELD, (1 << 11));
1534         }
1535
1536         if (phy->analog == 1) {
1537                 b43_phy_write(dev, 0x0026, 0xCE00);
1538                 b43_phy_write(dev, 0x0021, 0x3763);
1539                 b43_phy_write(dev, 0x0022, 0x1BC3);
1540                 b43_phy_write(dev, 0x0023, 0x06F9);
1541                 b43_phy_write(dev, 0x0024, 0x037E);
1542         } else
1543                 b43_phy_write(dev, 0x0026, 0xCC00);
1544         b43_phy_write(dev, 0x0030, 0x00C6);
1545         b43_write16(dev, 0x03EC, 0x3F22);
1546
1547         if (phy->analog == 1)
1548                 b43_phy_write(dev, 0x0020, 0x3E1C);
1549         else
1550                 b43_phy_write(dev, 0x0020, 0x301C);
1551
1552         if (phy->analog == 0)
1553                 b43_write16(dev, 0x03E4, 0x3000);
1554
1555         old_channel = phy->channel;
1556         /* Force to channel 7, even if not supported. */
1557         b43_gphy_channel_switch(dev, 7, 0);
1558
1559         if (phy->radio_ver != 0x2050) {
1560                 b43_radio_write16(dev, 0x0075, 0x0080);
1561                 b43_radio_write16(dev, 0x0079, 0x0081);
1562         }
1563
1564         b43_radio_write16(dev, 0x0050, 0x0020);
1565         b43_radio_write16(dev, 0x0050, 0x0023);
1566
1567         if (phy->radio_ver == 0x2050) {
1568                 b43_radio_write16(dev, 0x0050, 0x0020);
1569                 b43_radio_write16(dev, 0x005A, 0x0070);
1570         }
1571
1572         b43_radio_write16(dev, 0x005B, 0x007B);
1573         b43_radio_write16(dev, 0x005C, 0x00B0);
1574
1575         b43_radio_set(dev, 0x007A, 0x0007);
1576
1577         b43_gphy_channel_switch(dev, old_channel, 0);
1578
1579         b43_phy_write(dev, 0x0014, 0x0080);
1580         b43_phy_write(dev, 0x0032, 0x00CA);
1581         b43_phy_write(dev, 0x002A, 0x88A3);
1582
1583         b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt, gphy->tx_control);
1584
1585         if (phy->radio_ver == 0x2050)
1586                 b43_radio_write16(dev, 0x005D, 0x000D);
1587
1588         b43_write16(dev, 0x03E4, (b43_read16(dev, 0x03E4) & 0xFFC0) | 0x0004);
1589 }
1590
1591 static void b43_phy_initb6(struct b43_wldev *dev)
1592 {
1593         struct b43_phy *phy = &dev->phy;
1594         struct b43_phy_g *gphy = phy->g;
1595         u16 offset, val;
1596         u8 old_channel;
1597
1598         b43_phy_write(dev, 0x003E, 0x817A);
1599         b43_radio_write16(dev, 0x007A,
1600                           (b43_radio_read16(dev, 0x007A) | 0x0058));
1601         if (phy->radio_rev == 4 || phy->radio_rev == 5) {
1602                 b43_radio_write16(dev, 0x51, 0x37);
1603                 b43_radio_write16(dev, 0x52, 0x70);
1604                 b43_radio_write16(dev, 0x53, 0xB3);
1605                 b43_radio_write16(dev, 0x54, 0x9B);
1606                 b43_radio_write16(dev, 0x5A, 0x88);
1607                 b43_radio_write16(dev, 0x5B, 0x88);
1608                 b43_radio_write16(dev, 0x5D, 0x88);
1609                 b43_radio_write16(dev, 0x5E, 0x88);
1610                 b43_radio_write16(dev, 0x7D, 0x88);
1611                 b43_hf_write(dev, b43_hf_read(dev)
1612                              | B43_HF_TSSIRPSMW);
1613         }
1614         B43_WARN_ON(phy->radio_rev == 6 || phy->radio_rev == 7);        /* We had code for these revs here... */
1615         if (phy->radio_rev == 8) {
1616                 b43_radio_write16(dev, 0x51, 0);
1617                 b43_radio_write16(dev, 0x52, 0x40);
1618                 b43_radio_write16(dev, 0x53, 0xB7);
1619                 b43_radio_write16(dev, 0x54, 0x98);
1620                 b43_radio_write16(dev, 0x5A, 0x88);
1621                 b43_radio_write16(dev, 0x5B, 0x6B);
1622                 b43_radio_write16(dev, 0x5C, 0x0F);
1623                 if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_ALTIQ) {
1624                         b43_radio_write16(dev, 0x5D, 0xFA);
1625                         b43_radio_write16(dev, 0x5E, 0xD8);
1626                 } else {
1627                         b43_radio_write16(dev, 0x5D, 0xF5);
1628                         b43_radio_write16(dev, 0x5E, 0xB8);
1629                 }
1630                 b43_radio_write16(dev, 0x0073, 0x0003);
1631                 b43_radio_write16(dev, 0x007D, 0x00A8);
1632                 b43_radio_write16(dev, 0x007C, 0x0001);
1633                 b43_radio_write16(dev, 0x007E, 0x0008);
1634         }
1635         val = 0x1E1F;
1636         for (offset = 0x0088; offset < 0x0098; offset++) {
1637                 b43_phy_write(dev, offset, val);
1638                 val -= 0x0202;
1639         }
1640         val = 0x3E3F;
1641         for (offset = 0x0098; offset < 0x00A8; offset++) {
1642                 b43_phy_write(dev, offset, val);
1643                 val -= 0x0202;
1644         }
1645         val = 0x2120;
1646         for (offset = 0x00A8; offset < 0x00C8; offset++) {
1647                 b43_phy_write(dev, offset, (val & 0x3F3F));
1648                 val += 0x0202;
1649         }
1650         if (phy->type == B43_PHYTYPE_G) {
1651                 b43_radio_set(dev, 0x007A, 0x0020);
1652                 b43_radio_set(dev, 0x0051, 0x0004);
1653                 b43_phy_set(dev, 0x0802, 0x0100);
1654                 b43_phy_set(dev, 0x042B, 0x2000);
1655                 b43_phy_write(dev, 0x5B, 0);
1656                 b43_phy_write(dev, 0x5C, 0);
1657         }
1658
1659         old_channel = phy->channel;
1660         if (old_channel >= 8)
1661                 b43_gphy_channel_switch(dev, 1, 0);
1662         else
1663                 b43_gphy_channel_switch(dev, 13, 0);
1664
1665         b43_radio_write16(dev, 0x0050, 0x0020);
1666         b43_radio_write16(dev, 0x0050, 0x0023);
1667         udelay(40);
1668         if (phy->radio_rev < 6 || phy->radio_rev == 8) {
1669                 b43_radio_write16(dev, 0x7C, (b43_radio_read16(dev, 0x7C)
1670                                               | 0x0002));
1671                 b43_radio_write16(dev, 0x50, 0x20);
1672         }
1673         if (phy->radio_rev <= 2) {
1674                 b43_radio_write16(dev, 0x7C, 0x20);
1675                 b43_radio_write16(dev, 0x5A, 0x70);
1676                 b43_radio_write16(dev, 0x5B, 0x7B);
1677                 b43_radio_write16(dev, 0x5C, 0xB0);
1678         }
1679         b43_radio_maskset(dev, 0x007A, 0x00F8, 0x0007);
1680
1681         b43_gphy_channel_switch(dev, old_channel, 0);
1682
1683         b43_phy_write(dev, 0x0014, 0x0200);
1684         if (phy->radio_rev >= 6)
1685                 b43_phy_write(dev, 0x2A, 0x88C2);
1686         else
1687                 b43_phy_write(dev, 0x2A, 0x8AC0);
1688         b43_phy_write(dev, 0x0038, 0x0668);
1689         b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt, gphy->tx_control);
1690         if (phy->radio_rev <= 5) {
1691                 b43_phy_maskset(dev, 0x5D, 0xFF80, 0x0003);
1692         }
1693         if (phy->radio_rev <= 2)
1694                 b43_radio_write16(dev, 0x005D, 0x000D);
1695
1696         if (phy->analog == 4) {
1697                 b43_write16(dev, 0x3E4, 9);
1698                 b43_phy_mask(dev, 0x61, 0x0FFF);
1699         } else {
1700                 b43_phy_maskset(dev, 0x0002, 0xFFC0, 0x0004);
1701         }
1702         if (phy->type == B43_PHYTYPE_B)
1703                 B43_WARN_ON(1);
1704         else if (phy->type == B43_PHYTYPE_G)
1705                 b43_write16(dev, 0x03E6, 0x0);
1706 }
1707
1708 static void b43_calc_loopback_gain(struct b43_wldev *dev)
1709 {
1710         struct b43_phy *phy = &dev->phy;
1711         struct b43_phy_g *gphy = phy->g;
1712         u16 backup_phy[16] = { 0 };
1713         u16 backup_radio[3];
1714         u16 backup_bband;
1715         u16 i, j, loop_i_max;
1716         u16 trsw_rx;
1717         u16 loop1_outer_done, loop1_inner_done;
1718
1719         backup_phy[0] = b43_phy_read(dev, B43_PHY_CRS0);
1720         backup_phy[1] = b43_phy_read(dev, B43_PHY_CCKBBANDCFG);
1721         backup_phy[2] = b43_phy_read(dev, B43_PHY_RFOVER);
1722         backup_phy[3] = b43_phy_read(dev, B43_PHY_RFOVERVAL);
1723         if (phy->rev != 1) {    /* Not in specs, but needed to prevent PPC machine check */
1724                 backup_phy[4] = b43_phy_read(dev, B43_PHY_ANALOGOVER);
1725                 backup_phy[5] = b43_phy_read(dev, B43_PHY_ANALOGOVERVAL);
1726         }
1727         backup_phy[6] = b43_phy_read(dev, B43_PHY_CCK(0x5A));
1728         backup_phy[7] = b43_phy_read(dev, B43_PHY_CCK(0x59));
1729         backup_phy[8] = b43_phy_read(dev, B43_PHY_CCK(0x58));
1730         backup_phy[9] = b43_phy_read(dev, B43_PHY_CCK(0x0A));
1731         backup_phy[10] = b43_phy_read(dev, B43_PHY_CCK(0x03));
1732         backup_phy[11] = b43_phy_read(dev, B43_PHY_LO_MASK);
1733         backup_phy[12] = b43_phy_read(dev, B43_PHY_LO_CTL);
1734         backup_phy[13] = b43_phy_read(dev, B43_PHY_CCK(0x2B));
1735         backup_phy[14] = b43_phy_read(dev, B43_PHY_PGACTL);
1736         backup_phy[15] = b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
1737         backup_bband = gphy->bbatt.att;
1738         backup_radio[0] = b43_radio_read16(dev, 0x52);
1739         backup_radio[1] = b43_radio_read16(dev, 0x43);
1740         backup_radio[2] = b43_radio_read16(dev, 0x7A);
1741
1742         b43_phy_mask(dev, B43_PHY_CRS0, 0x3FFF);
1743         b43_phy_set(dev, B43_PHY_CCKBBANDCFG, 0x8000);
1744         b43_phy_set(dev, B43_PHY_RFOVER, 0x0002);
1745         b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xFFFD);
1746         b43_phy_set(dev, B43_PHY_RFOVER, 0x0001);
1747         b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xFFFE);
1748         if (phy->rev != 1) {    /* Not in specs, but needed to prevent PPC machine check */
1749                 b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0001);
1750                 b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFE);
1751                 b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0002);
1752                 b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFD);
1753         }
1754         b43_phy_set(dev, B43_PHY_RFOVER, 0x000C);
1755         b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x000C);
1756         b43_phy_set(dev, B43_PHY_RFOVER, 0x0030);
1757         b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xFFCF, 0x10);
1758
1759         b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0780);
1760         b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
1761         b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
1762
1763         b43_phy_set(dev, B43_PHY_CCK(0x0A), 0x2000);
1764         if (phy->rev != 1) {    /* Not in specs, but needed to prevent PPC machine check */
1765                 b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0004);
1766                 b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFB);
1767         }
1768         b43_phy_maskset(dev, B43_PHY_CCK(0x03), 0xFF9F, 0x40);
1769
1770         if (phy->radio_rev == 8) {
1771                 b43_radio_write16(dev, 0x43, 0x000F);
1772         } else {
1773                 b43_radio_write16(dev, 0x52, 0);
1774                 b43_radio_maskset(dev, 0x43, 0xFFF0, 0x9);
1775         }
1776         b43_gphy_set_baseband_attenuation(dev, 11);
1777
1778         if (phy->rev >= 3)
1779                 b43_phy_write(dev, B43_PHY_LO_MASK, 0xC020);
1780         else
1781                 b43_phy_write(dev, B43_PHY_LO_MASK, 0x8020);
1782         b43_phy_write(dev, B43_PHY_LO_CTL, 0);
1783
1784         b43_phy_maskset(dev, B43_PHY_CCK(0x2B), 0xFFC0, 0x01);
1785         b43_phy_maskset(dev, B43_PHY_CCK(0x2B), 0xC0FF, 0x800);
1786
1787         b43_phy_set(dev, B43_PHY_RFOVER, 0x0100);
1788         b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xCFFF);
1789
1790         if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_EXTLNA) {
1791                 if (phy->rev >= 7) {
1792                         b43_phy_set(dev, B43_PHY_RFOVER, 0x0800);
1793                         b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x8000);
1794                 }
1795         }
1796         b43_radio_mask(dev, 0x7A, 0x00F7);
1797
1798         j = 0;
1799         loop_i_max = (phy->radio_rev == 8) ? 15 : 9;
1800         for (i = 0; i < loop_i_max; i++) {
1801                 for (j = 0; j < 16; j++) {
1802                         b43_radio_write16(dev, 0x43, i);
1803                         b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xF0FF, (j << 8));
1804                         b43_phy_maskset(dev, B43_PHY_PGACTL, 0x0FFF, 0xA000);
1805                         b43_phy_set(dev, B43_PHY_PGACTL, 0xF000);
1806                         udelay(20);
1807                         if (b43_phy_read(dev, B43_PHY_LO_LEAKAGE) >= 0xDFC)
1808                                 goto exit_loop1;
1809                 }
1810         }
1811       exit_loop1:
1812         loop1_outer_done = i;
1813         loop1_inner_done = j;
1814         if (j >= 8) {
1815                 b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x30);
1816                 trsw_rx = 0x1B;
1817                 for (j = j - 8; j < 16; j++) {
1818                         b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xF0FF, (j << 8));
1819                         b43_phy_maskset(dev, B43_PHY_PGACTL, 0x0FFF, 0xA000);
1820                         b43_phy_set(dev, B43_PHY_PGACTL, 0xF000);
1821                         udelay(20);
1822                         trsw_rx -= 3;
1823                         if (b43_phy_read(dev, B43_PHY_LO_LEAKAGE) >= 0xDFC)
1824                                 goto exit_loop2;
1825                 }
1826         } else
1827                 trsw_rx = 0x18;
1828       exit_loop2:
1829
1830         if (phy->rev != 1) {    /* Not in specs, but needed to prevent PPC machine check */
1831                 b43_phy_write(dev, B43_PHY_ANALOGOVER, backup_phy[4]);
1832                 b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, backup_phy[5]);
1833         }
1834         b43_phy_write(dev, B43_PHY_CCK(0x5A), backup_phy[6]);
1835         b43_phy_write(dev, B43_PHY_CCK(0x59), backup_phy[7]);
1836         b43_phy_write(dev, B43_PHY_CCK(0x58), backup_phy[8]);
1837         b43_phy_write(dev, B43_PHY_CCK(0x0A), backup_phy[9]);
1838         b43_phy_write(dev, B43_PHY_CCK(0x03), backup_phy[10]);
1839         b43_phy_write(dev, B43_PHY_LO_MASK, backup_phy[11]);
1840         b43_phy_write(dev, B43_PHY_LO_CTL, backup_phy[12]);
1841         b43_phy_write(dev, B43_PHY_CCK(0x2B), backup_phy[13]);
1842         b43_phy_write(dev, B43_PHY_PGACTL, backup_phy[14]);
1843
1844         b43_gphy_set_baseband_attenuation(dev, backup_bband);
1845
1846         b43_radio_write16(dev, 0x52, backup_radio[0]);
1847         b43_radio_write16(dev, 0x43, backup_radio[1]);
1848         b43_radio_write16(dev, 0x7A, backup_radio[2]);
1849
1850         b43_phy_write(dev, B43_PHY_RFOVER, backup_phy[2] | 0x0003);
1851         udelay(10);
1852         b43_phy_write(dev, B43_PHY_RFOVER, backup_phy[2]);
1853         b43_phy_write(dev, B43_PHY_RFOVERVAL, backup_phy[3]);
1854         b43_phy_write(dev, B43_PHY_CRS0, backup_phy[0]);
1855         b43_phy_write(dev, B43_PHY_CCKBBANDCFG, backup_phy[1]);
1856
1857         gphy->max_lb_gain =
1858             ((loop1_inner_done * 6) - (loop1_outer_done * 4)) - 11;
1859         gphy->trsw_rx_gain = trsw_rx * 2;
1860 }
1861
1862 static void b43_hardware_pctl_early_init(struct b43_wldev *dev)
1863 {
1864         struct b43_phy *phy = &dev->phy;
1865
1866         if (!b43_has_hardware_pctl(dev)) {
1867                 b43_phy_write(dev, 0x047A, 0xC111);
1868                 return;
1869         }
1870
1871         b43_phy_mask(dev, 0x0036, 0xFEFF);
1872         b43_phy_write(dev, 0x002F, 0x0202);
1873         b43_phy_set(dev, 0x047C, 0x0002);
1874         b43_phy_set(dev, 0x047A, 0xF000);
1875         if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
1876                 b43_phy_maskset(dev, 0x047A, 0xFF0F, 0x0010);
1877                 b43_phy_set(dev, 0x005D, 0x8000);
1878                 b43_phy_maskset(dev, 0x004E, 0xFFC0, 0x0010);
1879                 b43_phy_write(dev, 0x002E, 0xC07F);
1880                 b43_phy_set(dev, 0x0036, 0x0400);
1881         } else {
1882                 b43_phy_set(dev, 0x0036, 0x0200);
1883                 b43_phy_set(dev, 0x0036, 0x0400);
1884                 b43_phy_mask(dev, 0x005D, 0x7FFF);
1885                 b43_phy_mask(dev, 0x004F, 0xFFFE);
1886                 b43_phy_maskset(dev, 0x004E, 0xFFC0, 0x0010);
1887                 b43_phy_write(dev, 0x002E, 0xC07F);
1888                 b43_phy_maskset(dev, 0x047A, 0xFF0F, 0x0010);
1889         }
1890 }
1891
1892 /* Hardware power control for G-PHY */
1893 static void b43_hardware_pctl_init_gphy(struct b43_wldev *dev)
1894 {
1895         struct b43_phy *phy = &dev->phy;
1896         struct b43_phy_g *gphy = phy->g;
1897
1898         if (!b43_has_hardware_pctl(dev)) {
1899                 /* No hardware power control */
1900                 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_HWPCTL);
1901                 return;
1902         }
1903
1904         b43_phy_maskset(dev, 0x0036, 0xFFC0, (gphy->tgt_idle_tssi - gphy->cur_idle_tssi));
1905         b43_phy_maskset(dev, 0x0478, 0xFF00, (gphy->tgt_idle_tssi - gphy->cur_idle_tssi));
1906         b43_gphy_tssi_power_lt_init(dev);
1907         b43_gphy_gain_lt_init(dev);
1908         b43_phy_mask(dev, 0x0060, 0xFFBF);
1909         b43_phy_write(dev, 0x0014, 0x0000);
1910
1911         B43_WARN_ON(phy->rev < 6);
1912         b43_phy_set(dev, 0x0478, 0x0800);
1913         b43_phy_mask(dev, 0x0478, 0xFEFF);
1914         b43_phy_mask(dev, 0x0801, 0xFFBF);
1915
1916         b43_gphy_dc_lt_init(dev, 1);
1917
1918         /* Enable hardware pctl in firmware. */
1919         b43_hf_write(dev, b43_hf_read(dev) | B43_HF_HWPCTL);
1920 }
1921
1922 /* Initialize B/G PHY power control */
1923 static void b43_phy_init_pctl(struct b43_wldev *dev)
1924 {
1925         struct ssb_bus *bus = dev->dev->bus;
1926         struct b43_phy *phy = &dev->phy;
1927         struct b43_phy_g *gphy = phy->g;
1928         struct b43_rfatt old_rfatt;
1929         struct b43_bbatt old_bbatt;
1930         u8 old_tx_control = 0;
1931
1932         B43_WARN_ON(phy->type != B43_PHYTYPE_G);
1933
1934         if ((bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM) &&
1935             (bus->boardinfo.type == SSB_BOARD_BU4306))
1936                 return;
1937
1938         b43_phy_write(dev, 0x0028, 0x8018);
1939
1940         /* This does something with the Analog... */
1941         b43_write16(dev, B43_MMIO_PHY0, b43_read16(dev, B43_MMIO_PHY0)
1942                     & 0xFFDF);
1943
1944         if (!phy->gmode)
1945                 return;
1946         b43_hardware_pctl_early_init(dev);
1947         if (gphy->cur_idle_tssi == 0) {
1948                 if (phy->radio_ver == 0x2050 && phy->analog == 0) {
1949                         b43_radio_maskset(dev, 0x0076, 0x00F7, 0x0084);
1950                 } else {
1951                         struct b43_rfatt rfatt;
1952                         struct b43_bbatt bbatt;
1953
1954                         memcpy(&old_rfatt, &gphy->rfatt, sizeof(old_rfatt));
1955                         memcpy(&old_bbatt, &gphy->bbatt, sizeof(old_bbatt));
1956                         old_tx_control = gphy->tx_control;
1957
1958                         bbatt.att = 11;
1959                         if (phy->radio_rev == 8) {
1960                                 rfatt.att = 15;
1961                                 rfatt.with_padmix = 1;
1962                         } else {
1963                                 rfatt.att = 9;
1964                                 rfatt.with_padmix = 0;
1965                         }
1966                         b43_set_txpower_g(dev, &bbatt, &rfatt, 0);
1967                 }
1968                 b43_dummy_transmission(dev, false, true);
1969                 gphy->cur_idle_tssi = b43_phy_read(dev, B43_PHY_ITSSI);
1970                 if (B43_DEBUG) {
1971                         /* Current-Idle-TSSI sanity check. */
1972                         if (abs(gphy->cur_idle_tssi - gphy->tgt_idle_tssi) >= 20) {
1973                                 b43dbg(dev->wl,
1974                                        "!WARNING! Idle-TSSI phy->cur_idle_tssi "
1975                                        "measuring failed. (cur=%d, tgt=%d). Disabling TX power "
1976                                        "adjustment.\n", gphy->cur_idle_tssi,
1977                                        gphy->tgt_idle_tssi);
1978                                 gphy->cur_idle_tssi = 0;
1979                         }
1980                 }
1981                 if (phy->radio_ver == 0x2050 && phy->analog == 0) {
1982                         b43_radio_mask(dev, 0x0076, 0xFF7B);
1983                 } else {
1984                         b43_set_txpower_g(dev, &old_bbatt,
1985                                           &old_rfatt, old_tx_control);
1986                 }
1987         }
1988         b43_hardware_pctl_init_gphy(dev);
1989         b43_shm_clear_tssi(dev);
1990 }
1991
1992 static void b43_phy_initg(struct b43_wldev *dev)
1993 {
1994         struct b43_phy *phy = &dev->phy;
1995         struct b43_phy_g *gphy = phy->g;
1996         u16 tmp;
1997
1998         if (phy->rev == 1)
1999                 b43_phy_initb5(dev);
2000         else
2001                 b43_phy_initb6(dev);
2002
2003         if (phy->rev >= 2 || phy->gmode)
2004                 b43_phy_inita(dev);
2005
2006         if (phy->rev >= 2) {
2007                 b43_phy_write(dev, B43_PHY_ANALOGOVER, 0);
2008                 b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, 0);
2009         }
2010         if (phy->rev == 2) {
2011                 b43_phy_write(dev, B43_PHY_RFOVER, 0);
2012                 b43_phy_write(dev, B43_PHY_PGACTL, 0xC0);
2013         }
2014         if (phy->rev > 5) {
2015                 b43_phy_write(dev, B43_PHY_RFOVER, 0x400);
2016                 b43_phy_write(dev, B43_PHY_PGACTL, 0xC0);
2017         }
2018         if (phy->gmode || phy->rev >= 2) {
2019                 tmp = b43_phy_read(dev, B43_PHY_VERSION_OFDM);
2020                 tmp &= B43_PHYVER_VERSION;
2021                 if (tmp == 3 || tmp == 5) {
2022                         b43_phy_write(dev, B43_PHY_OFDM(0xC2), 0x1816);
2023                         b43_phy_write(dev, B43_PHY_OFDM(0xC3), 0x8006);
2024                 }
2025                 if (tmp == 5) {
2026                         b43_phy_maskset(dev, B43_PHY_OFDM(0xCC), 0x00FF, 0x1F00);
2027                 }
2028         }
2029         if ((phy->rev <= 2 && phy->gmode) || phy->rev >= 2)
2030                 b43_phy_write(dev, B43_PHY_OFDM(0x7E), 0x78);
2031         if (phy->radio_rev == 8) {
2032                 b43_phy_set(dev, B43_PHY_EXTG(0x01), 0x80);
2033                 b43_phy_set(dev, B43_PHY_OFDM(0x3E), 0x4);
2034         }
2035         if (has_loopback_gain(phy))
2036                 b43_calc_loopback_gain(dev);
2037
2038         if (phy->radio_rev != 8) {
2039                 if (gphy->initval == 0xFFFF)
2040                         gphy->initval = b43_radio_init2050(dev);
2041                 else
2042                         b43_radio_write16(dev, 0x0078, gphy->initval);
2043         }
2044         b43_lo_g_init(dev);
2045         if (has_tx_magnification(phy)) {
2046                 b43_radio_write16(dev, 0x52,
2047                                   (b43_radio_read16(dev, 0x52) & 0xFF00)
2048                                   | gphy->lo_control->tx_bias | gphy->
2049                                   lo_control->tx_magn);
2050         } else {
2051                 b43_radio_maskset(dev, 0x52, 0xFFF0, gphy->lo_control->tx_bias);
2052         }
2053         if (phy->rev >= 6) {
2054                 b43_phy_maskset(dev, B43_PHY_CCK(0x36), 0x0FFF, (gphy->lo_control->tx_bias << 12));
2055         }
2056         if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_PACTRL)
2057                 b43_phy_write(dev, B43_PHY_CCK(0x2E), 0x8075);
2058         else
2059                 b43_phy_write(dev, B43_PHY_CCK(0x2E), 0x807F);
2060         if (phy->rev < 2)
2061                 b43_phy_write(dev, B43_PHY_CCK(0x2F), 0x101);
2062         else
2063                 b43_phy_write(dev, B43_PHY_CCK(0x2F), 0x202);
2064         if (phy->gmode || phy->rev >= 2) {
2065                 b43_lo_g_adjust(dev);
2066                 b43_phy_write(dev, B43_PHY_LO_MASK, 0x8078);
2067         }
2068
2069         if (!(dev->dev->bus->sprom.boardflags_lo & B43_BFL_RSSI)) {
2070                 /* The specs state to update the NRSSI LT with
2071                  * the value 0x7FFFFFFF here. I think that is some weird
2072                  * compiler optimization in the original driver.
2073                  * Essentially, what we do here is resetting all NRSSI LT
2074                  * entries to -32 (see the clamp_val() in nrssi_hw_update())
2075                  */
2076                 b43_nrssi_hw_update(dev, 0xFFFF);       //FIXME?
2077                 b43_calc_nrssi_threshold(dev);
2078         } else if (phy->gmode || phy->rev >= 2) {
2079                 if (gphy->nrssi[0] == -1000) {
2080                         B43_WARN_ON(gphy->nrssi[1] != -1000);
2081                         b43_calc_nrssi_slope(dev);
2082                 } else
2083                         b43_calc_nrssi_threshold(dev);
2084         }
2085         if (phy->radio_rev == 8)
2086                 b43_phy_write(dev, B43_PHY_EXTG(0x05), 0x3230);
2087         b43_phy_init_pctl(dev);
2088         /* FIXME: The spec says in the following if, the 0 should be replaced
2089            'if OFDM may not be used in the current locale'
2090            but OFDM is legal everywhere */
2091         if ((dev->dev->bus->chip_id == 0x4306
2092              && dev->dev->bus->chip_package == 2) || 0) {
2093                 b43_phy_mask(dev, B43_PHY_CRS0, 0xBFFF);
2094                 b43_phy_mask(dev, B43_PHY_OFDM(0xC3), 0x7FFF);
2095         }
2096 }
2097
2098 void b43_gphy_channel_switch(struct b43_wldev *dev,
2099                              unsigned int channel,
2100                              bool synthetic_pu_workaround)
2101 {
2102         if (synthetic_pu_workaround)
2103                 b43_synth_pu_workaround(dev, channel);
2104
2105         b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel));
2106
2107         if (channel == 14) {
2108                 if (dev->dev->bus->sprom.country_code ==
2109                     SSB_SPROM1CCODE_JAPAN)
2110                         b43_hf_write(dev,
2111                                      b43_hf_read(dev) & ~B43_HF_ACPR);
2112                 else
2113                         b43_hf_write(dev,
2114                                      b43_hf_read(dev) | B43_HF_ACPR);
2115                 b43_write16(dev, B43_MMIO_CHANNEL_EXT,
2116                             b43_read16(dev, B43_MMIO_CHANNEL_EXT)
2117                             | (1 << 11));
2118         } else {
2119                 b43_write16(dev, B43_MMIO_CHANNEL_EXT,
2120                             b43_read16(dev, B43_MMIO_CHANNEL_EXT)
2121                             & 0xF7BF);
2122         }
2123 }
2124
2125 static void default_baseband_attenuation(struct b43_wldev *dev,
2126                                          struct b43_bbatt *bb)
2127 {
2128         struct b43_phy *phy = &dev->phy;
2129
2130         if (phy->radio_ver == 0x2050 && phy->radio_rev < 6)
2131                 bb->att = 0;
2132         else
2133                 bb->att = 2;
2134 }
2135
2136 static void default_radio_attenuation(struct b43_wldev *dev,
2137                                       struct b43_rfatt *rf)
2138 {
2139         struct ssb_bus *bus = dev->dev->bus;
2140         struct b43_phy *phy = &dev->phy;
2141
2142         rf->with_padmix = 0;
2143
2144         if (bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM &&
2145             bus->boardinfo.type == SSB_BOARD_BCM4309G) {
2146                 if (bus->boardinfo.rev < 0x43) {
2147                         rf->att = 2;
2148                         return;
2149                 } else if (bus->boardinfo.rev < 0x51) {
2150                         rf->att = 3;
2151                         return;
2152                 }
2153         }
2154
2155         if (phy->type == B43_PHYTYPE_A) {
2156                 rf->att = 0x60;
2157                 return;
2158         }
2159
2160         switch (phy->radio_ver) {
2161         case 0x2053:
2162                 switch (phy->radio_rev) {
2163                 case 1:
2164                         rf->att = 6;
2165                         return;
2166                 }
2167                 break;
2168         case 0x2050:
2169                 switch (phy->radio_rev) {
2170                 case 0:
2171                         rf->att = 5;
2172                         return;
2173                 case 1:
2174                         if (phy->type == B43_PHYTYPE_G) {
2175                                 if (bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM
2176                                     && bus->boardinfo.type == SSB_BOARD_BCM4309G
2177                                     && bus->boardinfo.rev >= 30)
2178                                         rf->att = 3;
2179                                 else if (bus->boardinfo.vendor ==
2180                                          SSB_BOARDVENDOR_BCM
2181                                          && bus->boardinfo.type ==
2182                                          SSB_BOARD_BU4306)
2183                                         rf->att = 3;
2184                                 else
2185                                         rf->att = 1;
2186                         } else {
2187                                 if (bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM
2188                                     && bus->boardinfo.type == SSB_BOARD_BCM4309G
2189                                     && bus->boardinfo.rev >= 30)
2190                                         rf->att = 7;
2191                                 else
2192                                         rf->att = 6;
2193                         }
2194                         return;
2195                 case 2:
2196                         if (phy->type == B43_PHYTYPE_G) {
2197                                 if (bus->boardinfo.vendor == SSB_BOARDVENDOR_BCM
2198                                     && bus->boardinfo.type == SSB_BOARD_BCM4309G
2199                                     && bus->boardinfo.rev >= 30)
2200                                         rf->att = 3;
2201                                 else if (bus->boardinfo.vendor ==
2202                                          SSB_BOARDVENDOR_BCM
2203                                          && bus->boardinfo.type ==
2204                                          SSB_BOARD_BU4306)
2205                                         rf->att = 5;
2206                                 else if (bus->chip_id == 0x4320)
2207                                         rf->att = 4;
2208                                 else
2209                                         rf->att = 3;
2210                         } else
2211                                 rf->att = 6;
2212                         return;
2213                 case 3:
2214                         rf->att = 5;
2215                         return;
2216                 case 4:
2217                 case 5:
2218                         rf->att = 1;
2219                         return;
2220                 case 6:
2221                 case 7:
2222                         rf->att = 5;
2223                         return;
2224                 case 8:
2225                         rf->att = 0xA;
2226                         rf->with_padmix = 1;
2227                         return;
2228                 case 9:
2229                 default:
2230                         rf->att = 5;
2231                         return;
2232                 }
2233         }
2234         rf->att = 5;
2235 }
2236
2237 static u16 default_tx_control(struct b43_wldev *dev)
2238 {
2239         struct b43_phy *phy = &dev->phy;
2240
2241         if (phy->radio_ver != 0x2050)
2242                 return 0;
2243         if (phy->radio_rev == 1)
2244                 return B43_TXCTL_PA2DB | B43_TXCTL_TXMIX;
2245         if (phy->radio_rev < 6)
2246                 return B43_TXCTL_PA2DB;
2247         if (phy->radio_rev == 8)
2248                 return B43_TXCTL_TXMIX;
2249         return 0;
2250 }
2251
2252 static u8 b43_gphy_aci_detect(struct b43_wldev *dev, u8 channel)
2253 {
2254         struct b43_phy *phy = &dev->phy;
2255         struct b43_phy_g *gphy = phy->g;
2256         u8 ret = 0;
2257         u16 saved, rssi, temp;
2258         int i, j = 0;
2259
2260         saved = b43_phy_read(dev, 0x0403);
2261         b43_switch_channel(dev, channel);
2262         b43_phy_write(dev, 0x0403, (saved & 0xFFF8) | 5);
2263         if (gphy->aci_hw_rssi)
2264                 rssi = b43_phy_read(dev, 0x048A) & 0x3F;
2265         else
2266                 rssi = saved & 0x3F;
2267         /* clamp temp to signed 5bit */
2268         if (rssi > 32)
2269                 rssi -= 64;
2270         for (i = 0; i < 100; i++) {
2271                 temp = (b43_phy_read(dev, 0x047F) >> 8) & 0x3F;
2272                 if (temp > 32)
2273                         temp -= 64;
2274                 if (temp < rssi)
2275                         j++;
2276                 if (j >= 20)
2277                         ret = 1;
2278         }
2279         b43_phy_write(dev, 0x0403, saved);
2280
2281         return ret;
2282 }
2283
2284 static u8 b43_gphy_aci_scan(struct b43_wldev *dev)
2285 {
2286         struct b43_phy *phy = &dev->phy;
2287         u8 ret[13];
2288         unsigned int channel = phy->channel;
2289         unsigned int i, j, start, end;
2290
2291         if (!((phy->type == B43_PHYTYPE_G) && (phy->rev > 0)))
2292                 return 0;
2293
2294         b43_phy_lock(dev);
2295         b43_radio_lock(dev);
2296         b43_phy_mask(dev, 0x0802, 0xFFFC);
2297         b43_phy_mask(dev, B43_PHY_G_CRS, 0x7FFF);
2298         b43_set_all_gains(dev, 3, 8, 1);
2299
2300         start = (channel - 5 > 0) ? channel - 5 : 1;
2301         end = (channel + 5 < 14) ? channel + 5 : 13;
2302
2303         for (i = start; i <= end; i++) {
2304                 if (abs(channel - i) > 2)
2305                         ret[i - 1] = b43_gphy_aci_detect(dev, i);
2306         }
2307         b43_switch_channel(dev, channel);
2308         b43_phy_maskset(dev, 0x0802, 0xFFFC, 0x0003);
2309         b43_phy_mask(dev, 0x0403, 0xFFF8);
2310         b43_phy_set(dev, B43_PHY_G_CRS, 0x8000);
2311         b43_set_original_gains(dev);
2312         for (i = 0; i < 13; i++) {
2313                 if (!ret[i])
2314                         continue;
2315                 end = (i + 5 < 13) ? i + 5 : 13;
2316                 for (j = i; j < end; j++)
2317                         ret[j] = 1;
2318         }
2319         b43_radio_unlock(dev);
2320         b43_phy_unlock(dev);
2321
2322         return ret[channel - 1];
2323 }
2324
2325 static s32 b43_tssi2dbm_ad(s32 num, s32 den)
2326 {
2327         if (num < 0)
2328                 return num / den;
2329         else
2330                 return (num + den / 2) / den;
2331 }
2332
2333 static s8 b43_tssi2dbm_entry(s8 entry[], u8 index,
2334                              s16 pab0, s16 pab1, s16 pab2)
2335 {
2336         s32 m1, m2, f = 256, q, delta;
2337         s8 i = 0;
2338
2339         m1 = b43_tssi2dbm_ad(16 * pab0 + index * pab1, 32);
2340         m2 = max(b43_tssi2dbm_ad(32768 + index * pab2, 256), 1);
2341         do {
2342                 if (i > 15)
2343                         return -EINVAL;
2344                 q = b43_tssi2dbm_ad(f * 4096 -
2345                                     b43_tssi2dbm_ad(m2 * f, 16) * f, 2048);
2346                 delta = abs(q - f);
2347                 f = q;
2348                 i++;
2349         } while (delta >= 2);
2350         entry[index] = clamp_val(b43_tssi2dbm_ad(m1 * f, 8192), -127, 128);
2351         return 0;
2352 }
2353
2354 u8 *b43_generate_dyn_tssi2dbm_tab(struct b43_wldev *dev,
2355                                   s16 pab0, s16 pab1, s16 pab2)
2356 {
2357         unsigned int i;
2358         u8 *tab;
2359         int err;
2360
2361         tab = kmalloc(64, GFP_KERNEL);
2362         if (!tab) {
2363                 b43err(dev->wl, "Could not allocate memory "
2364                        "for tssi2dbm table\n");
2365                 return NULL;
2366         }
2367         for (i = 0; i < 64; i++) {
2368                 err = b43_tssi2dbm_entry(tab, i, pab0, pab1, pab2);
2369                 if (err) {
2370                         b43err(dev->wl, "Could not generate "
2371                                "tssi2dBm table\n");
2372                         kfree(tab);
2373                         return NULL;
2374                 }
2375         }
2376
2377         return tab;
2378 }
2379
2380 /* Initialise the TSSI->dBm lookup table */
2381 static int b43_gphy_init_tssi2dbm_table(struct b43_wldev *dev)
2382 {
2383         struct b43_phy *phy = &dev->phy;
2384         struct b43_phy_g *gphy = phy->g;
2385         s16 pab0, pab1, pab2;
2386
2387         pab0 = (s16) (dev->dev->bus->sprom.pa0b0);
2388         pab1 = (s16) (dev->dev->bus->sprom.pa0b1);
2389         pab2 = (s16) (dev->dev->bus->sprom.pa0b2);
2390
2391         B43_WARN_ON((dev->dev->bus->chip_id == 0x4301) &&
2392                     (phy->radio_ver != 0x2050)); /* Not supported anymore */
2393
2394         gphy->dyn_tssi_tbl = 0;
2395
2396         if (pab0 != 0 && pab1 != 0 && pab2 != 0 &&
2397             pab0 != -1 && pab1 != -1 && pab2 != -1) {
2398                 /* The pabX values are set in SPROM. Use them. */
2399                 if ((s8) dev->dev->bus->sprom.itssi_bg != 0 &&
2400                     (s8) dev->dev->bus->sprom.itssi_bg != -1) {
2401                         gphy->tgt_idle_tssi =
2402                                 (s8) (dev->dev->bus->sprom.itssi_bg);
2403                 } else
2404                         gphy->tgt_idle_tssi = 62;
2405                 gphy->tssi2dbm = b43_generate_dyn_tssi2dbm_tab(dev, pab0,
2406                                                                pab1, pab2);
2407                 if (!gphy->tssi2dbm)
2408                         return -ENOMEM;
2409                 gphy->dyn_tssi_tbl = 1;
2410         } else {
2411                 /* pabX values not set in SPROM. */
2412                 gphy->tgt_idle_tssi = 52;
2413                 gphy->tssi2dbm = b43_tssi2dbm_g_table;
2414         }
2415
2416         return 0;
2417 }
2418
2419 static int b43_gphy_op_allocate(struct b43_wldev *dev)
2420 {
2421         struct b43_phy_g *gphy;
2422         struct b43_txpower_lo_control *lo;
2423         int err;
2424
2425         gphy = kzalloc(sizeof(*gphy), GFP_KERNEL);
2426         if (!gphy) {
2427                 err = -ENOMEM;
2428                 goto error;
2429         }
2430         dev->phy.g = gphy;
2431
2432         lo = kzalloc(sizeof(*lo), GFP_KERNEL);
2433         if (!lo) {
2434                 err = -ENOMEM;
2435                 goto err_free_gphy;
2436         }
2437         gphy->lo_control = lo;
2438
2439         err = b43_gphy_init_tssi2dbm_table(dev);
2440         if (err)
2441                 goto err_free_lo;
2442
2443         return 0;
2444
2445 err_free_lo:
2446         kfree(lo);
2447 err_free_gphy:
2448         kfree(gphy);
2449 error:
2450         return err;
2451 }
2452
2453 static void b43_gphy_op_prepare_structs(struct b43_wldev *dev)
2454 {
2455         struct b43_phy *phy = &dev->phy;
2456         struct b43_phy_g *gphy = phy->g;
2457         const void *tssi2dbm;
2458         int tgt_idle_tssi;
2459         struct b43_txpower_lo_control *lo;
2460         unsigned int i;
2461
2462         /* tssi2dbm table is constant, so it is initialized at alloc time.
2463          * Save a copy of the pointer. */
2464         tssi2dbm = gphy->tssi2dbm;
2465         tgt_idle_tssi = gphy->tgt_idle_tssi;
2466         /* Save the LO pointer. */
2467         lo = gphy->lo_control;
2468
2469         /* Zero out the whole PHY structure. */
2470         memset(gphy, 0, sizeof(*gphy));
2471
2472         /* Restore pointers. */
2473         gphy->tssi2dbm = tssi2dbm;
2474         gphy->tgt_idle_tssi = tgt_idle_tssi;
2475         gphy->lo_control = lo;
2476
2477         memset(gphy->minlowsig, 0xFF, sizeof(gphy->minlowsig));
2478
2479         /* NRSSI */
2480         for (i = 0; i < ARRAY_SIZE(gphy->nrssi); i++)
2481                 gphy->nrssi[i] = -1000;
2482         for (i = 0; i < ARRAY_SIZE(gphy->nrssi_lt); i++)
2483                 gphy->nrssi_lt[i] = i;
2484
2485         gphy->lofcal = 0xFFFF;
2486         gphy->initval = 0xFFFF;
2487
2488         gphy->interfmode = B43_INTERFMODE_NONE;
2489
2490         /* OFDM-table address caching. */
2491         gphy->ofdmtab_addr_direction = B43_OFDMTAB_DIRECTION_UNKNOWN;
2492
2493         gphy->average_tssi = 0xFF;
2494
2495         /* Local Osciallator structure */
2496         lo->tx_bias = 0xFF;
2497         INIT_LIST_HEAD(&lo->calib_list);
2498 }
2499
2500 static void b43_gphy_op_free(struct b43_wldev *dev)
2501 {
2502         struct b43_phy *phy = &dev->phy;
2503         struct b43_phy_g *gphy = phy->g;
2504
2505         kfree(gphy->lo_control);
2506
2507         if (gphy->dyn_tssi_tbl)
2508                 kfree(gphy->tssi2dbm);
2509         gphy->dyn_tssi_tbl = 0;
2510         gphy->tssi2dbm = NULL;
2511
2512         kfree(gphy);
2513         dev->phy.g = NULL;
2514 }
2515
2516 static int b43_gphy_op_prepare_hardware(struct b43_wldev *dev)
2517 {
2518         struct b43_phy *phy = &dev->phy;
2519         struct b43_phy_g *gphy = phy->g;
2520         struct b43_txpower_lo_control *lo = gphy->lo_control;
2521
2522         B43_WARN_ON(phy->type != B43_PHYTYPE_G);
2523
2524         default_baseband_attenuation(dev, &gphy->bbatt);
2525         default_radio_attenuation(dev, &gphy->rfatt);
2526         gphy->tx_control = (default_tx_control(dev) << 4);
2527         generate_rfatt_list(dev, &lo->rfatt_list);
2528         generate_bbatt_list(dev, &lo->bbatt_list);
2529
2530         /* Commit previous writes */
2531         b43_read32(dev, B43_MMIO_MACCTL);
2532
2533         if (phy->rev == 1) {
2534                 /* Workaround: Temporarly disable gmode through the early init
2535                  * phase, as the gmode stuff is not needed for phy rev 1 */
2536                 phy->gmode = 0;
2537                 b43_wireless_core_reset(dev, 0);
2538                 b43_phy_initg(dev);
2539                 phy->gmode = 1;
2540                 b43_wireless_core_reset(dev, B43_TMSLOW_GMODE);
2541         }
2542
2543         return 0;
2544 }
2545
2546 static int b43_gphy_op_init(struct b43_wldev *dev)
2547 {
2548         b43_phy_initg(dev);
2549
2550         return 0;
2551 }
2552
2553 static void b43_gphy_op_exit(struct b43_wldev *dev)
2554 {
2555         b43_lo_g_cleanup(dev);
2556 }
2557
2558 static u16 b43_gphy_op_read(struct b43_wldev *dev, u16 reg)
2559 {
2560         b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
2561         return b43_read16(dev, B43_MMIO_PHY_DATA);
2562 }
2563
2564 static void b43_gphy_op_write(struct b43_wldev *dev, u16 reg, u16 value)
2565 {
2566         b43_write16(dev, B43_MMIO_PHY_CONTROL, reg);
2567         b43_write16(dev, B43_MMIO_PHY_DATA, value);
2568 }
2569
2570 static u16 b43_gphy_op_radio_read(struct b43_wldev *dev, u16 reg)
2571 {
2572         /* Register 1 is a 32-bit register. */
2573         B43_WARN_ON(reg == 1);
2574         /* G-PHY needs 0x80 for read access. */
2575         reg |= 0x80;
2576
2577         b43_write16(dev, B43_MMIO_RADIO_CONTROL, reg);
2578         return b43_read16(dev, B43_MMIO_RADIO_DATA_LOW);
2579 }
2580
2581 static void b43_gphy_op_radio_write(struct b43_wldev *dev, u16 reg, u16 value)
2582 {
2583         /* Register 1 is a 32-bit register. */
2584         B43_WARN_ON(reg == 1);
2585
2586         b43_write16(dev, B43_MMIO_RADIO_CONTROL, reg);
2587         b43_write16(dev, B43_MMIO_RADIO_DATA_LOW, value);
2588 }
2589
2590 static bool b43_gphy_op_supports_hwpctl(struct b43_wldev *dev)
2591 {
2592         return (dev->phy.rev >= 6);
2593 }
2594
2595 static void b43_gphy_op_software_rfkill(struct b43_wldev *dev,
2596                                         bool blocked)
2597 {
2598         struct b43_phy *phy = &dev->phy;
2599         struct b43_phy_g *gphy = phy->g;
2600         unsigned int channel;
2601
2602         might_sleep();
2603
2604         if (!blocked) {
2605                 /* Turn radio ON */
2606                 if (phy->radio_on)
2607                         return;
2608
2609                 b43_phy_write(dev, 0x0015, 0x8000);
2610                 b43_phy_write(dev, 0x0015, 0xCC00);
2611                 b43_phy_write(dev, 0x0015, (phy->gmode ? 0x00C0 : 0x0000));
2612                 if (gphy->radio_off_context.valid) {
2613                         /* Restore the RFover values. */
2614                         b43_phy_write(dev, B43_PHY_RFOVER,
2615                                       gphy->radio_off_context.rfover);
2616                         b43_phy_write(dev, B43_PHY_RFOVERVAL,
2617                                       gphy->radio_off_context.rfoverval);
2618                         gphy->radio_off_context.valid = 0;
2619                 }
2620                 channel = phy->channel;
2621                 b43_gphy_channel_switch(dev, 6, 1);
2622                 b43_gphy_channel_switch(dev, channel, 0);
2623         } else {
2624                 /* Turn radio OFF */
2625                 u16 rfover, rfoverval;
2626
2627                 rfover = b43_phy_read(dev, B43_PHY_RFOVER);
2628                 rfoverval = b43_phy_read(dev, B43_PHY_RFOVERVAL);
2629                 gphy->radio_off_context.rfover = rfover;
2630                 gphy->radio_off_context.rfoverval = rfoverval;
2631                 gphy->radio_off_context.valid = 1;
2632                 b43_phy_write(dev, B43_PHY_RFOVER, rfover | 0x008C);
2633                 b43_phy_write(dev, B43_PHY_RFOVERVAL, rfoverval & 0xFF73);
2634         }
2635 }
2636
2637 static int b43_gphy_op_switch_channel(struct b43_wldev *dev,
2638                                       unsigned int new_channel)
2639 {
2640         if ((new_channel < 1) || (new_channel > 14))
2641                 return -EINVAL;
2642         b43_gphy_channel_switch(dev, new_channel, 0);
2643
2644         return 0;
2645 }
2646
2647 static unsigned int b43_gphy_op_get_default_chan(struct b43_wldev *dev)
2648 {
2649         return 1; /* Default to channel 1 */
2650 }
2651
2652 static void b43_gphy_op_set_rx_antenna(struct b43_wldev *dev, int antenna)
2653 {
2654         struct b43_phy *phy = &dev->phy;
2655         u16 tmp;
2656         int autodiv = 0;
2657
2658         if (antenna == B43_ANTENNA_AUTO0 || antenna == B43_ANTENNA_AUTO1)
2659                 autodiv = 1;
2660
2661         b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_ANTDIVHELP);
2662
2663         b43_phy_maskset(dev, B43_PHY_BBANDCFG, ~B43_PHY_BBANDCFG_RXANT,
2664                         (autodiv ? B43_ANTENNA_AUTO1 : antenna) <<
2665                         B43_PHY_BBANDCFG_RXANT_SHIFT);
2666
2667         if (autodiv) {
2668                 tmp = b43_phy_read(dev, B43_PHY_ANTDWELL);
2669                 if (antenna == B43_ANTENNA_AUTO1)
2670                         tmp &= ~B43_PHY_ANTDWELL_AUTODIV1;
2671                 else
2672                         tmp |= B43_PHY_ANTDWELL_AUTODIV1;
2673                 b43_phy_write(dev, B43_PHY_ANTDWELL, tmp);
2674         }
2675
2676         tmp = b43_phy_read(dev, B43_PHY_ANTWRSETT);
2677         if (autodiv)
2678                 tmp |= B43_PHY_ANTWRSETT_ARXDIV;
2679         else
2680                 tmp &= ~B43_PHY_ANTWRSETT_ARXDIV;
2681         b43_phy_write(dev, B43_PHY_ANTWRSETT, tmp);
2682
2683         if (autodiv)
2684                 b43_phy_set(dev, B43_PHY_ANTWRSETT, B43_PHY_ANTWRSETT_ARXDIV);
2685         else {
2686                 b43_phy_mask(dev, B43_PHY_ANTWRSETT,
2687                              B43_PHY_ANTWRSETT_ARXDIV);
2688         }
2689
2690         if (phy->rev >= 2) {
2691                 b43_phy_set(dev, B43_PHY_OFDM61, B43_PHY_OFDM61_10);
2692                 b43_phy_maskset(dev, B43_PHY_DIVSRCHGAINBACK, 0xFF00, 0x15);
2693
2694                 if (phy->rev == 2)
2695                         b43_phy_write(dev, B43_PHY_ADIVRELATED, 8);
2696                 else
2697                         b43_phy_maskset(dev, B43_PHY_ADIVRELATED, 0xFF00, 8);
2698         }
2699         if (phy->rev >= 6)
2700                 b43_phy_write(dev, B43_PHY_OFDM9B, 0xDC);
2701
2702         b43_hf_write(dev, b43_hf_read(dev) | B43_HF_ANTDIVHELP);
2703 }
2704
2705 static int b43_gphy_op_interf_mitigation(struct b43_wldev *dev,
2706                                          enum b43_interference_mitigation mode)
2707 {
2708         struct b43_phy *phy = &dev->phy;
2709         struct b43_phy_g *gphy = phy->g;
2710         int currentmode;
2711
2712         B43_WARN_ON(phy->type != B43_PHYTYPE_G);
2713         if ((phy->rev == 0) || (!phy->gmode))
2714                 return -ENODEV;
2715
2716         gphy->aci_wlan_automatic = 0;
2717         switch (mode) {
2718         case B43_INTERFMODE_AUTOWLAN:
2719                 gphy->aci_wlan_automatic = 1;
2720                 if (gphy->aci_enable)
2721                         mode = B43_INTERFMODE_MANUALWLAN;
2722                 else
2723                         mode = B43_INTERFMODE_NONE;
2724                 break;
2725         case B43_INTERFMODE_NONE:
2726         case B43_INTERFMODE_NONWLAN:
2727         case B43_INTERFMODE_MANUALWLAN:
2728                 break;
2729         default:
2730                 return -EINVAL;
2731         }
2732
2733         currentmode = gphy->interfmode;
2734         if (currentmode == mode)
2735                 return 0;
2736         if (currentmode != B43_INTERFMODE_NONE)
2737                 b43_radio_interference_mitigation_disable(dev, currentmode);
2738
2739         if (mode == B43_INTERFMODE_NONE) {
2740                 gphy->aci_enable = 0;
2741                 gphy->aci_hw_rssi = 0;
2742         } else
2743                 b43_radio_interference_mitigation_enable(dev, mode);
2744         gphy->interfmode = mode;
2745
2746         return 0;
2747 }
2748
2749 /* http://bcm-specs.sipsolutions.net/EstimatePowerOut
2750  * This function converts a TSSI value to dBm in Q5.2
2751  */
2752 static s8 b43_gphy_estimate_power_out(struct b43_wldev *dev, s8 tssi)
2753 {
2754         struct b43_phy_g *gphy = dev->phy.g;
2755         s8 dbm;
2756         s32 tmp;
2757
2758         tmp = (gphy->tgt_idle_tssi - gphy->cur_idle_tssi + tssi);
2759         tmp = clamp_val(tmp, 0x00, 0x3F);
2760         dbm = gphy->tssi2dbm[tmp];
2761
2762         return dbm;
2763 }
2764
2765 static void b43_put_attenuation_into_ranges(struct b43_wldev *dev,
2766                                             int *_bbatt, int *_rfatt)
2767 {
2768         int rfatt = *_rfatt;
2769         int bbatt = *_bbatt;
2770         struct b43_txpower_lo_control *lo = dev->phy.g->lo_control;
2771
2772         /* Get baseband and radio attenuation values into their permitted ranges.
2773          * Radio attenuation affects power level 4 times as much as baseband. */
2774
2775         /* Range constants */
2776         const int rf_min = lo->rfatt_list.min_val;
2777         const int rf_max = lo->rfatt_list.max_val;
2778         const int bb_min = lo->bbatt_list.min_val;
2779         const int bb_max = lo->bbatt_list.max_val;
2780
2781         while (1) {
2782                 if (rfatt > rf_max && bbatt > bb_max - 4)
2783                         break;  /* Can not get it into ranges */
2784                 if (rfatt < rf_min && bbatt < bb_min + 4)
2785                         break;  /* Can not get it into ranges */
2786                 if (bbatt > bb_max && rfatt > rf_max - 1)
2787                         break;  /* Can not get it into ranges */
2788                 if (bbatt < bb_min && rfatt < rf_min + 1)
2789                         break;  /* Can not get it into ranges */
2790
2791                 if (bbatt > bb_max) {
2792                         bbatt -= 4;
2793                         rfatt += 1;
2794                         continue;
2795                 }
2796                 if (bbatt < bb_min) {
2797                         bbatt += 4;
2798                         rfatt -= 1;
2799                         continue;
2800                 }
2801                 if (rfatt > rf_max) {
2802                         rfatt -= 1;
2803                         bbatt += 4;
2804                         continue;
2805                 }
2806                 if (rfatt < rf_min) {
2807                         rfatt += 1;
2808                         bbatt -= 4;
2809                         continue;
2810                 }
2811                 break;
2812         }
2813
2814         *_rfatt = clamp_val(rfatt, rf_min, rf_max);
2815         *_bbatt = clamp_val(bbatt, bb_min, bb_max);
2816 }
2817
2818 static void b43_gphy_op_adjust_txpower(struct b43_wldev *dev)
2819 {
2820         struct b43_phy *phy = &dev->phy;
2821         struct b43_phy_g *gphy = phy->g;
2822         int rfatt, bbatt;
2823         u8 tx_control;
2824
2825         b43_mac_suspend(dev);
2826
2827         /* Calculate the new attenuation values. */
2828         bbatt = gphy->bbatt.att;
2829         bbatt += gphy->bbatt_delta;
2830         rfatt = gphy->rfatt.att;
2831         rfatt += gphy->rfatt_delta;
2832
2833         b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt);
2834         tx_control = gphy->tx_control;
2835         if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 2)) {
2836                 if (rfatt <= 1) {
2837                         if (tx_control == 0) {
2838                                 tx_control =
2839                                     B43_TXCTL_PA2DB |
2840                                     B43_TXCTL_TXMIX;
2841                                 rfatt += 2;
2842                                 bbatt += 2;
2843                         } else if (dev->dev->bus->sprom.
2844                                    boardflags_lo &
2845                                    B43_BFL_PACTRL) {
2846                                 bbatt += 4 * (rfatt - 2);
2847                                 rfatt = 2;
2848                         }
2849                 } else if (rfatt > 4 && tx_control) {
2850                         tx_control = 0;
2851                         if (bbatt < 3) {
2852                                 rfatt -= 3;
2853                                 bbatt += 2;
2854                         } else {
2855                                 rfatt -= 2;
2856                                 bbatt -= 2;
2857                         }
2858                 }
2859         }
2860         /* Save the control values */
2861         gphy->tx_control = tx_control;
2862         b43_put_attenuation_into_ranges(dev, &bbatt, &rfatt);
2863         gphy->rfatt.att = rfatt;
2864         gphy->bbatt.att = bbatt;
2865
2866         if (b43_debug(dev, B43_DBG_XMITPOWER))
2867                 b43dbg(dev->wl, "Adjusting TX power\n");
2868
2869         /* Adjust the hardware */
2870         b43_phy_lock(dev);
2871         b43_radio_lock(dev);
2872         b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt,
2873                           gphy->tx_control);
2874         b43_radio_unlock(dev);
2875         b43_phy_unlock(dev);
2876
2877         b43_mac_enable(dev);
2878 }
2879
2880 static enum b43_txpwr_result b43_gphy_op_recalc_txpower(struct b43_wldev *dev,
2881                                                         bool ignore_tssi)
2882 {
2883         struct b43_phy *phy = &dev->phy;
2884         struct b43_phy_g *gphy = phy->g;
2885         unsigned int average_tssi;
2886         int cck_result, ofdm_result;
2887         int estimated_pwr, desired_pwr, pwr_adjust;
2888         int rfatt_delta, bbatt_delta;
2889         unsigned int max_pwr;
2890
2891         /* First get the average TSSI */
2892         cck_result = b43_phy_shm_tssi_read(dev, B43_SHM_SH_TSSI_CCK);
2893         ofdm_result = b43_phy_shm_tssi_read(dev, B43_SHM_SH_TSSI_OFDM_G);
2894         if ((cck_result < 0) && (ofdm_result < 0)) {
2895                 /* No TSSI information available */
2896                 if (!ignore_tssi)
2897                         goto no_adjustment_needed;
2898                 cck_result = 0;
2899                 ofdm_result = 0;
2900         }
2901         if (cck_result < 0)
2902                 average_tssi = ofdm_result;
2903         else if (ofdm_result < 0)
2904                 average_tssi = cck_result;
2905         else
2906                 average_tssi = (cck_result + ofdm_result) / 2;
2907         /* Merge the average with the stored value. */
2908         if (likely(gphy->average_tssi != 0xFF))
2909                 average_tssi = (average_tssi + gphy->average_tssi) / 2;
2910         gphy->average_tssi = average_tssi;
2911         B43_WARN_ON(average_tssi >= B43_TSSI_MAX);
2912
2913         /* Estimate the TX power emission based on the TSSI */
2914         estimated_pwr = b43_gphy_estimate_power_out(dev, average_tssi);
2915
2916         B43_WARN_ON(phy->type != B43_PHYTYPE_G);
2917         max_pwr = dev->dev->bus->sprom.maxpwr_bg;
2918         if (dev->dev->bus->sprom.boardflags_lo & B43_BFL_PACTRL)
2919                 max_pwr -= 3; /* minus 0.75 */
2920         if (unlikely(max_pwr >= INT_TO_Q52(30/*dBm*/))) {
2921                 b43warn(dev->wl,
2922                         "Invalid max-TX-power value in SPROM.\n");
2923                 max_pwr = INT_TO_Q52(20); /* fake it */
2924                 dev->dev->bus->sprom.maxpwr_bg = max_pwr;
2925         }
2926
2927         /* Get desired power (in Q5.2) */
2928         if (phy->desired_txpower < 0)
2929                 desired_pwr = INT_TO_Q52(0);
2930         else
2931                 desired_pwr = INT_TO_Q52(phy->desired_txpower);
2932         /* And limit it. max_pwr already is Q5.2 */
2933         desired_pwr = clamp_val(desired_pwr, 0, max_pwr);
2934         if (b43_debug(dev, B43_DBG_XMITPOWER)) {
2935                 b43dbg(dev->wl,
2936                        "[TX power]  current = " Q52_FMT
2937                        " dBm,  desired = " Q52_FMT
2938                        " dBm,  max = " Q52_FMT "\n",
2939                        Q52_ARG(estimated_pwr),
2940                        Q52_ARG(desired_pwr),
2941                        Q52_ARG(max_pwr));
2942         }
2943
2944         /* Calculate the adjustment delta. */
2945         pwr_adjust = desired_pwr - estimated_pwr;
2946         if (pwr_adjust == 0)
2947                 goto no_adjustment_needed;
2948
2949         /* RF attenuation delta. */
2950         rfatt_delta = ((pwr_adjust + 7) / 8);
2951         /* Lower attenuation => Bigger power output. Negate it. */
2952         rfatt_delta = -rfatt_delta;
2953
2954         /* Baseband attenuation delta. */
2955         bbatt_delta = pwr_adjust / 2;
2956         /* Lower attenuation => Bigger power output. Negate it. */
2957         bbatt_delta = -bbatt_delta;
2958         /* RF att affects power level 4 times as much as
2959          * Baseband attennuation. Subtract it. */
2960         bbatt_delta -= 4 * rfatt_delta;
2961
2962 #if B43_DEBUG
2963         if (b43_debug(dev, B43_DBG_XMITPOWER)) {
2964                 int dbm = pwr_adjust < 0 ? -pwr_adjust : pwr_adjust;
2965                 b43dbg(dev->wl,
2966                        "[TX power deltas]  %s" Q52_FMT " dBm   =>   "
2967                        "bbatt-delta = %d,  rfatt-delta = %d\n",
2968                        (pwr_adjust < 0 ? "-" : ""), Q52_ARG(dbm),
2969                        bbatt_delta, rfatt_delta);
2970         }
2971 #endif /* DEBUG */
2972
2973         /* So do we finally need to adjust something in hardware? */
2974         if ((rfatt_delta == 0) && (bbatt_delta == 0))
2975                 goto no_adjustment_needed;
2976
2977         /* Save the deltas for later when we adjust the power. */
2978         gphy->bbatt_delta = bbatt_delta;
2979         gphy->rfatt_delta = rfatt_delta;
2980
2981         /* We need to adjust the TX power on the device. */
2982         return B43_TXPWR_RES_NEED_ADJUST;
2983
2984 no_adjustment_needed:
2985         return B43_TXPWR_RES_DONE;
2986 }
2987
2988 static void b43_gphy_op_pwork_15sec(struct b43_wldev *dev)
2989 {
2990         struct b43_phy *phy = &dev->phy;
2991         struct b43_phy_g *gphy = phy->g;
2992
2993         b43_mac_suspend(dev);
2994         //TODO: update_aci_moving_average
2995         if (gphy->aci_enable && gphy->aci_wlan_automatic) {
2996                 if (!gphy->aci_enable && 1 /*TODO: not scanning? */ ) {
2997                         if (0 /*TODO: bunch of conditions */ ) {
2998                                 phy->ops->interf_mitigation(dev,
2999                                         B43_INTERFMODE_MANUALWLAN);
3000                         }
3001                 } else if (0 /*TODO*/) {
3002                            if (/*(aci_average > 1000) &&*/ !b43_gphy_aci_scan(dev))
3003                                 phy->ops->interf_mitigation(dev, B43_INTERFMODE_NONE);
3004                 }
3005         } else if (gphy->interfmode == B43_INTERFMODE_NONWLAN &&
3006                    phy->rev == 1) {
3007                 //TODO: implement rev1 workaround
3008         }
3009         b43_lo_g_maintanance_work(dev);
3010         b43_mac_enable(dev);
3011 }
3012
3013 static void b43_gphy_op_pwork_60sec(struct b43_wldev *dev)
3014 {
3015         struct b43_phy *phy = &dev->phy;
3016
3017         if (!(dev->dev->bus->sprom.boardflags_lo & B43_BFL_RSSI))
3018                 return;
3019
3020         b43_mac_suspend(dev);
3021         b43_calc_nrssi_slope(dev);
3022         if ((phy->radio_ver == 0x2050) && (phy->radio_rev == 8)) {
3023                 u8 old_chan = phy->channel;
3024
3025                 /* VCO Calibration */
3026                 if (old_chan >= 8)
3027                         b43_switch_channel(dev, 1);
3028                 else
3029                         b43_switch_channel(dev, 13);
3030                 b43_switch_channel(dev, old_chan);
3031         }
3032         b43_mac_enable(dev);
3033 }
3034
3035 const struct b43_phy_operations b43_phyops_g = {
3036         .allocate               = b43_gphy_op_allocate,
3037         .free                   = b43_gphy_op_free,
3038         .prepare_structs        = b43_gphy_op_prepare_structs,
3039         .prepare_hardware       = b43_gphy_op_prepare_hardware,
3040         .init                   = b43_gphy_op_init,
3041         .exit                   = b43_gphy_op_exit,
3042         .phy_read               = b43_gphy_op_read,
3043         .phy_write              = b43_gphy_op_write,
3044         .radio_read             = b43_gphy_op_radio_read,
3045         .radio_write            = b43_gphy_op_radio_write,
3046         .supports_hwpctl        = b43_gphy_op_supports_hwpctl,
3047         .software_rfkill        = b43_gphy_op_software_rfkill,
3048         .switch_analog          = b43_phyop_switch_analog_generic,
3049         .switch_channel         = b43_gphy_op_switch_channel,
3050         .get_default_chan       = b43_gphy_op_get_default_chan,
3051         .set_rx_antenna         = b43_gphy_op_set_rx_antenna,
3052         .interf_mitigation      = b43_gphy_op_interf_mitigation,
3053         .recalc_txpower         = b43_gphy_op_recalc_txpower,
3054         .adjust_txpower         = b43_gphy_op_adjust_txpower,
3055         .pwork_15sec            = b43_gphy_op_pwork_15sec,
3056         .pwork_60sec            = b43_gphy_op_pwork_60sec,
3057 };