drivers/net/wireless/broadcom/b43/phy_g.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3
   4   Broadcom B43 wireless driver
   5   IEEE 802.11g PHY driver
   6
   7   Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>,
   8   Copyright (c) 2005-2007 Stefano Brivio <stefano.brivio@polimi.it>
   9   Copyright (c) 2005-2008 Michael Buesch <m@bues.ch>
  10   Copyright (c) 2005, 2006 Danny van Dyk <kugelfang@gentoo.org>
  11   Copyright (c) 2005, 2006 Andreas Jaggi <andreas.jaggi@waterwave.ch>
  12
  13
  14 */
  15
  16 #include "b43.h"
  17 #include "phy_g.h"
  18 #include "phy_common.h"
  19 #include "lo.h"
  20 #include "main.h"
  21 #include "wa.h"
  22
  23 #include <linux/bitrev.h>
  24 #include <linux/slab.h>
  25
  26
  27 static const s8 b43_tssi2dbm_g_table[] = {
  28         77, 77, 77, 76,
  29         76, 76, 75, 75,
  30         74, 74, 73, 73,
  31         73, 72, 72, 71,
  32         71, 70, 70, 69,
  33         68, 68, 67, 67,
  34         66, 65, 65, 64,
  35         63, 63, 62, 61,
  36         60, 59, 58, 57,
  37         56, 55, 54, 53,
  38         52, 50, 49, 47,
  39         45, 43, 40, 37,
  40         33, 28, 22, 14,
  41         5, -7, -20, -20,
  42         -20, -20, -20, -20,
  43         -20, -20, -20, -20,
  44 };
  45
  46 static const u8 b43_radio_channel_codes_bg[] = {
  47         12, 17, 22, 27,
  48         32, 37, 42, 47,
  49         52, 57, 62, 67,
  50         72, 84,
  51 };
  52
  53
  54 static void b43_calc_nrssi_threshold(struct b43_wldev *dev);
  55
  56
  57 #define bitrev4(tmp) (bitrev8(tmp) >> 4)
  58
  59
  60 /* Get the freq, as it has to be written to the device. */
  61 static inline u16 channel2freq_bg(u8 channel)
  62 {
  63         B43_WARN_ON(!(channel >= 1 && channel <= 14));
  64
  65         return b43_radio_channel_codes_bg[channel - 1];
  66 }
  67
  68 static void generate_rfatt_list(struct b43_wldev *dev,
  69                                 struct b43_rfatt_list *list)
  70 {
  71         struct b43_phy *phy = &dev->phy;
  72
  73         /* APHY.rev < 5 || GPHY.rev < 6 */
  74         static const struct b43_rfatt rfatt_0[] = {
  75                 {.att = 3,.with_padmix = 0,},
  76                 {.att = 1,.with_padmix = 0,},
  77                 {.att = 5,.with_padmix = 0,},
  78                 {.att = 7,.with_padmix = 0,},
  79                 {.att = 9,.with_padmix = 0,},
  80                 {.att = 2,.with_padmix = 0,},
  81                 {.att = 0,.with_padmix = 0,},
  82                 {.att = 4,.with_padmix = 0,},
  83                 {.att = 6,.with_padmix = 0,},
  84                 {.att = 8,.with_padmix = 0,},
  85                 {.att = 1,.with_padmix = 1,},
  86                 {.att = 2,.with_padmix = 1,},
  87                 {.att = 3,.with_padmix = 1,},
  88                 {.att = 4,.with_padmix = 1,},
  89         };
  90         /* Radio.rev == 8 && Radio.version == 0x2050 */
  91         static const struct b43_rfatt rfatt_1[] = {
  92                 {.att = 2,.with_padmix = 1,},
  93                 {.att = 4,.with_padmix = 1,},
  94                 {.att = 6,.with_padmix = 1,},
  95                 {.att = 8,.with_padmix = 1,},
  96                 {.att = 10,.with_padmix = 1,},
  97                 {.att = 12,.with_padmix = 1,},
  98                 {.att = 14,.with_padmix = 1,},
  99         };
 100         /* Otherwise */
 101         static const struct b43_rfatt rfatt_2[] = {
 102                 {.att = 0,.with_padmix = 1,},
 103                 {.att = 2,.with_padmix = 1,},
 104                 {.att = 4,.with_padmix = 1,},
 105                 {.att = 6,.with_padmix = 1,},
 106                 {.att = 8,.with_padmix = 1,},
 107                 {.att = 9,.with_padmix = 1,},
 108                 {.att = 9,.with_padmix = 1,},
 109         };
 110
 111         if (!b43_has_hardware_pctl(dev)) {
 112                 /* Software pctl */
 113                 list->list = rfatt_0;
 114                 list->len = ARRAY_SIZE(rfatt_0);
 115                 list->min_val = 0;
 116                 list->max_val = 9;
 117                 return;
 118         }
 119         if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
 120                 /* Hardware pctl */
 121                 list->list = rfatt_1;
 122                 list->len = ARRAY_SIZE(rfatt_1);
 123                 list->min_val = 0;
 124                 list->max_val = 14;
 125                 return;
 126         }
 127         /* Hardware pctl */
 128         list->list = rfatt_2;
 129         list->len = ARRAY_SIZE(rfatt_2);
 130         list->min_val = 0;
 131         list->max_val = 9;
 132 }
 133
 134 static void generate_bbatt_list(struct b43_wldev *dev,
 135                                 struct b43_bbatt_list *list)
 136 {
 137         static const struct b43_bbatt bbatt_0[] = {
 138                 {.att = 0,},
 139                 {.att = 1,},
 140                 {.att = 2,},
 141                 {.att = 3,},
 142                 {.att = 4,},
 143                 {.att = 5,},
 144                 {.att = 6,},
 145                 {.att = 7,},
 146                 {.att = 8,},
 147         };
 148
 149         list->list = bbatt_0;
 150         list->len = ARRAY_SIZE(bbatt_0);
 151         list->min_val = 0;
 152         list->max_val = 8;
 153 }
 154
 155 static void b43_shm_clear_tssi(struct b43_wldev *dev)
 156 {
 157         b43_shm_write16(dev, B43_SHM_SHARED, 0x0058, 0x7F7F);
 158         b43_shm_write16(dev, B43_SHM_SHARED, 0x005a, 0x7F7F);
 159         b43_shm_write16(dev, B43_SHM_SHARED, 0x0070, 0x7F7F);
 160         b43_shm_write16(dev, B43_SHM_SHARED, 0x0072, 0x7F7F);
 161 }
 162
 163 /* Synthetic PU workaround */
 164 static void b43_synth_pu_workaround(struct b43_wldev *dev, u8 channel)
 165 {
 166         struct b43_phy *phy = &dev->phy;
 167
 168         might_sleep();
 169
 170         if (phy->radio_ver != 0x2050 || phy->radio_rev >= 6) {
 171                 /* We do not need the workaround. */
 172                 return;
 173         }
 174
 175         if (channel <= 10) {
 176                 b43_write16(dev, B43_MMIO_CHANNEL,
 177                             channel2freq_bg(channel + 4));
 178         } else {
 179                 b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(1));
 180         }
 181         msleep(1);
 182         b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel));
 183 }
 184
 185 /* Set the baseband attenuation value on chip. */
 186 void b43_gphy_set_baseband_attenuation(struct b43_wldev *dev,
 187                                        u16 baseband_attenuation)
 188 {
 189         struct b43_phy *phy = &dev->phy;
 190
 191         if (phy->analog == 0) {
 192                 b43_write16(dev, B43_MMIO_PHY0, (b43_read16(dev, B43_MMIO_PHY0)
 193                                                  & 0xFFF0) |
 194                             baseband_attenuation);
 195         } else if (phy->analog > 1) {
 196                 b43_phy_maskset(dev, B43_PHY_DACCTL, 0xFFC3, (baseband_attenuation << 2));
 197         } else {
 198                 b43_phy_maskset(dev, B43_PHY_DACCTL, 0xFF87, (baseband_attenuation << 3));
 199         }
 200 }
 201
 202 /* Adjust the transmission power output (G-PHY) */
 203 static void b43_set_txpower_g(struct b43_wldev *dev,
 204                               const struct b43_bbatt *bbatt,
 205                               const struct b43_rfatt *rfatt, u8 tx_control)
 206 {
 207         struct b43_phy *phy = &dev->phy;
 208         struct b43_phy_g *gphy = phy->g;
 209         struct b43_txpower_lo_control *lo = gphy->lo_control;
 210         u16 bb, rf;
 211         u16 tx_bias, tx_magn;
 212
 213         bb = bbatt->att;
 214         rf = rfatt->att;
 215         tx_bias = lo->tx_bias;
 216         tx_magn = lo->tx_magn;
 217         if (unlikely(tx_bias == 0xFF))
 218                 tx_bias = 0;
 219
 220         /* Save the values for later. Use memmove, because it's valid
 221          * to pass &gphy->rfatt as rfatt pointer argument. Same for bbatt. */
 222         gphy->tx_control = tx_control;
 223         memmove(&gphy->rfatt, rfatt, sizeof(*rfatt));
 224         gphy->rfatt.with_padmix = !!(tx_control & B43_TXCTL_TXMIX);
 225         memmove(&gphy->bbatt, bbatt, sizeof(*bbatt));
 226
 227         if (b43_debug(dev, B43_DBG_XMITPOWER)) {
 228                 b43dbg(dev->wl, "Tuning TX-power to bbatt(%u), "
 229                        "rfatt(%u), tx_control(0x%02X), "
 230                        "tx_bias(0x%02X), tx_magn(0x%02X)\n",
 231                        bb, rf, tx_control, tx_bias, tx_magn);
 232         }
 233
 234         b43_gphy_set_baseband_attenuation(dev, bb);
 235         b43_shm_write16(dev, B43_SHM_SHARED, B43_SHM_SH_RFATT, rf);
 236         if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
 237                 b43_radio_write16(dev, 0x43,
 238                                   (rf & 0x000F) | (tx_control & 0x0070));
 239         } else {
 240                 b43_radio_maskset(dev, 0x43, 0xFFF0, (rf & 0x000F));
 241                 b43_radio_maskset(dev, 0x52, ~0x0070, (tx_control & 0x0070));
 242         }
 243         if (has_tx_magnification(phy)) {
 244                 b43_radio_write16(dev, 0x52, tx_magn | tx_bias);
 245         } else {
 246                 b43_radio_maskset(dev, 0x52, 0xFFF0, (tx_bias & 0x000F));
 247         }
 248         b43_lo_g_adjust(dev);
 249 }
 250
 251 /* GPHY_TSSI_Power_Lookup_Table_Init */
 252 static void b43_gphy_tssi_power_lt_init(struct b43_wldev *dev)
 253 {
 254         struct b43_phy_g *gphy = dev->phy.g;
 255         int i;
 256         u16 value;
 257
 258         for (i = 0; i < 32; i++)
 259                 b43_ofdmtab_write16(dev, 0x3C20, i, gphy->tssi2dbm[i]);
 260         for (i = 32; i < 64; i++)
 261                 b43_ofdmtab_write16(dev, 0x3C00, i - 32, gphy->tssi2dbm[i]);
 262         for (i = 0; i < 64; i += 2) {
 263                 value = (u16) gphy->tssi2dbm[i];
 264                 value |= ((u16) gphy->tssi2dbm[i + 1]) << 8;
 265                 b43_phy_write(dev, 0x380 + (i / 2), value);
 266         }
 267 }
 268
 269 /* GPHY_Gain_Lookup_Table_Init */
 270 static void b43_gphy_gain_lt_init(struct b43_wldev *dev)
 271 {
 272         struct b43_phy *phy = &dev->phy;
 273         struct b43_phy_g *gphy = phy->g;
 274         struct b43_txpower_lo_control *lo = gphy->lo_control;
 275         u16 nr_written = 0;
 276         u16 tmp;
 277         u8 rf, bb;
 278
 279         for (rf = 0; rf < lo->rfatt_list.len; rf++) {
 280                 for (bb = 0; bb < lo->bbatt_list.len; bb++) {
 281                         if (nr_written >= 0x40)
 282                                 return;
 283                         tmp = lo->bbatt_list.list[bb].att;
 284                         tmp <<= 8;
 285                         if (phy->radio_rev == 8)
 286                                 tmp |= 0x50;
 287                         else
 288                                 tmp |= 0x40;
 289                         tmp |= lo->rfatt_list.list[rf].att;
 290                         b43_phy_write(dev, 0x3C0 + nr_written, tmp);
 291                         nr_written++;
 292                 }
 293         }
 294 }
 295
 296 static void b43_set_all_gains(struct b43_wldev *dev,
 297                               s16 first, s16 second, s16 third)
 298 {
 299         struct b43_phy *phy = &dev->phy;
 300         u16 i;
 301         u16 start = 0x08, end = 0x18;
 302         u16 tmp;
 303         u16 table;
 304
 305         if (phy->rev <= 1) {
 306                 start = 0x10;
 307                 end = 0x20;
 308         }
 309
 310         table = B43_OFDMTAB_GAINX;
 311         if (phy->rev <= 1)
 312                 table = B43_OFDMTAB_GAINX_R1;
 313         for (i = 0; i < 4; i++)
 314                 b43_ofdmtab_write16(dev, table, i, first);
 315
 316         for (i = start; i < end; i++)
 317                 b43_ofdmtab_write16(dev, table, i, second);
 318
 319         if (third != -1) {
 320                 tmp = ((u16) third << 14) | ((u16) third << 6);
 321                 b43_phy_maskset(dev, 0x04A0, 0xBFBF, tmp);
 322                 b43_phy_maskset(dev, 0x04A1, 0xBFBF, tmp);
 323                 b43_phy_maskset(dev, 0x04A2, 0xBFBF, tmp);
 324         }
 325         b43_dummy_transmission(dev, false, true);
 326 }
 327
 328 static void b43_set_original_gains(struct b43_wldev *dev)
 329 {
 330         struct b43_phy *phy = &dev->phy;
 331         u16 i, tmp;
 332         u16 table;
 333         u16 start = 0x0008, end = 0x0018;
 334
 335         if (phy->rev <= 1) {
 336                 start = 0x0010;
 337                 end = 0x0020;
 338         }
 339
 340         table = B43_OFDMTAB_GAINX;
 341         if (phy->rev <= 1)
 342                 table = B43_OFDMTAB_GAINX_R1;
 343         for (i = 0; i < 4; i++) {
 344                 tmp = (i & 0xFFFC);
 345                 tmp |= (i & 0x0001) << 1;
 346                 tmp |= (i & 0x0002) >> 1;
 347
 348                 b43_ofdmtab_write16(dev, table, i, tmp);
 349         }
 350
 351         for (i = start; i < end; i++)
 352                 b43_ofdmtab_write16(dev, table, i, i - start);
 353
 354         b43_phy_maskset(dev, 0x04A0, 0xBFBF, 0x4040);
 355         b43_phy_maskset(dev, 0x04A1, 0xBFBF, 0x4040);
 356         b43_phy_maskset(dev, 0x04A2, 0xBFBF, 0x4000);
 357         b43_dummy_transmission(dev, false, true);
 358 }
 359
 360 /* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
 361 static void b43_nrssi_hw_write(struct b43_wldev *dev, u16 offset, s16 val)
 362 {
 363         b43_phy_write(dev, B43_PHY_NRSSILT_CTRL, offset);
 364         b43_phy_write(dev, B43_PHY_NRSSILT_DATA, (u16) val);
 365 }
 366
 367 /* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
 368 static s16 b43_nrssi_hw_read(struct b43_wldev *dev, u16 offset)
 369 {
 370         u16 val;
 371
 372         b43_phy_write(dev, B43_PHY_NRSSILT_CTRL, offset);
 373         val = b43_phy_read(dev, B43_PHY_NRSSILT_DATA);
 374
 375         return (s16) val;
 376 }
 377
 378 /* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
 379 static void b43_nrssi_hw_update(struct b43_wldev *dev, u16 val)
 380 {
 381         u16 i;
 382         s16 tmp;
 383
 384         for (i = 0; i < 64; i++) {
 385                 tmp = b43_nrssi_hw_read(dev, i);
 386                 tmp -= val;
 387                 tmp = clamp_val(tmp, -32, 31);
 388                 b43_nrssi_hw_write(dev, i, tmp);
 389         }
 390 }
 391
 392 /* http://bcm-specs.sipsolutions.net/NRSSILookupTable */
 393 static void b43_nrssi_mem_update(struct b43_wldev *dev)
 394 {
 395         struct b43_phy_g *gphy = dev->phy.g;
 396         s16 i, delta;
 397         s32 tmp;
 398
 399         delta = 0x1F - gphy->nrssi[0];
 400         for (i = 0; i < 64; i++) {
 401                 tmp = (i - delta) * gphy->nrssislope;
 402                 tmp /= 0x10000;
 403                 tmp += 0x3A;
 404                 tmp = clamp_val(tmp, 0, 0x3F);
 405                 gphy->nrssi_lt[i] = tmp;
 406         }
 407 }
 408
 409 static void b43_calc_nrssi_offset(struct b43_wldev *dev)
 410 {
 411         struct b43_phy *phy = &dev->phy;
 412         u16 backup[20] = { 0 };
 413         s16 v47F;
 414         u16 i;
 415         u16 saved = 0xFFFF;
 416
 417         backup[0] = b43_phy_read(dev, 0x0001);
 418         backup[1] = b43_phy_read(dev, 0x0811);
 419         backup[2] = b43_phy_read(dev, 0x0812);
 420         if (phy->rev != 1) {    /* Not in specs, but needed to prevent PPC machine check */
 421                 backup[3] = b43_phy_read(dev, 0x0814);
 422                 backup[4] = b43_phy_read(dev, 0x0815);
 423         }
 424         backup[5] = b43_phy_read(dev, 0x005A);
 425         backup[6] = b43_phy_read(dev, 0x0059);
 426         backup[7] = b43_phy_read(dev, 0x0058);
 427         backup[8] = b43_phy_read(dev, 0x000A);
 428         backup[9] = b43_phy_read(dev, 0x0003);
 429         backup[10] = b43_radio_read16(dev, 0x007A);
 430         backup[11] = b43_radio_read16(dev, 0x0043);
 431
 432         b43_phy_mask(dev, 0x0429, 0x7FFF);
 433         b43_phy_maskset(dev, 0x0001, 0x3FFF, 0x4000);
 434         b43_phy_set(dev, 0x0811, 0x000C);
 435         b43_phy_maskset(dev, 0x0812, 0xFFF3, 0x0004);
 436         b43_phy_mask(dev, 0x0802, ~(0x1 | 0x2));
 437         if (phy->rev >= 6) {
 438                 backup[12] = b43_phy_read(dev, 0x002E);
 439                 backup[13] = b43_phy_read(dev, 0x002F);
 440                 backup[14] = b43_phy_read(dev, 0x080F);
 441                 backup[15] = b43_phy_read(dev, 0x0810);
 442                 backup[16] = b43_phy_read(dev, 0x0801);
 443                 backup[17] = b43_phy_read(dev, 0x0060);
 444                 backup[18] = b43_phy_read(dev, 0x0014);
 445                 backup[19] = b43_phy_read(dev, 0x0478);
 446
 447                 b43_phy_write(dev, 0x002E, 0);
 448                 b43_phy_write(dev, 0x002F, 0);
 449                 b43_phy_write(dev, 0x080F, 0);
 450                 b43_phy_write(dev, 0x0810, 0);
 451                 b43_phy_set(dev, 0x0478, 0x0100);
 452                 b43_phy_set(dev, 0x0801, 0x0040);
 453                 b43_phy_set(dev, 0x0060, 0x0040);
 454                 b43_phy_set(dev, 0x0014, 0x0200);
 455         }
 456         b43_radio_set(dev, 0x007A, 0x0070);
 457         b43_radio_set(dev, 0x007A, 0x0080);
 458         udelay(30);
 459
 460         v47F = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
 461         if (v47F >= 0x20)
 462                 v47F -= 0x40;
 463         if (v47F == 31) {
 464                 for (i = 7; i >= 4; i--) {
 465                         b43_radio_write16(dev, 0x007B, i);
 466                         udelay(20);
 467                         v47F =
 468                             (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
 469                         if (v47F >= 0x20)
 470                                 v47F -= 0x40;
 471                         if (v47F < 31 && saved == 0xFFFF)
 472                                 saved = i;
 473                 }
 474                 if (saved == 0xFFFF)
 475                         saved = 4;
 476         } else {
 477                 b43_radio_mask(dev, 0x007A, 0x007F);
 478                 if (phy->rev != 1) {    /* Not in specs, but needed to prevent PPC machine check */
 479                         b43_phy_set(dev, 0x0814, 0x0001);
 480                         b43_phy_mask(dev, 0x0815, 0xFFFE);
 481                 }
 482                 b43_phy_set(dev, 0x0811, 0x000C);
 483                 b43_phy_set(dev, 0x0812, 0x000C);
 484                 b43_phy_set(dev, 0x0811, 0x0030);
 485                 b43_phy_set(dev, 0x0812, 0x0030);
 486                 b43_phy_write(dev, 0x005A, 0x0480);
 487                 b43_phy_write(dev, 0x0059, 0x0810);
 488                 b43_phy_write(dev, 0x0058, 0x000D);
 489                 if (phy->rev == 0) {
 490                         b43_phy_write(dev, 0x0003, 0x0122);
 491                 } else {
 492                         b43_phy_set(dev, 0x000A, 0x2000);
 493                 }
 494                 if (phy->rev != 1) {    /* Not in specs, but needed to prevent PPC machine check */
 495                         b43_phy_set(dev, 0x0814, 0x0004);
 496                         b43_phy_mask(dev, 0x0815, 0xFFFB);
 497                 }
 498                 b43_phy_maskset(dev, 0x0003, 0xFF9F, 0x0040);
 499                 b43_radio_set(dev, 0x007A, 0x000F);
 500                 b43_set_all_gains(dev, 3, 0, 1);
 501                 b43_radio_maskset(dev, 0x0043, 0x00F0, 0x000F);
 502                 udelay(30);
 503                 v47F = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
 504                 if (v47F >= 0x20)
 505                         v47F -= 0x40;
 506                 if (v47F == -32) {
 507                         for (i = 0; i < 4; i++) {
 508                                 b43_radio_write16(dev, 0x007B, i);
 509                                 udelay(20);
 510                                 v47F =
 511                                     (s16) ((b43_phy_read(dev, 0x047F) >> 8) &
 512                                            0x003F);
 513                                 if (v47F >= 0x20)
 514                                         v47F -= 0x40;
 515                                 if (v47F > -31 && saved == 0xFFFF)
 516                                         saved = i;
 517                         }
 518                         if (saved == 0xFFFF)
 519                                 saved = 3;
 520                 } else
 521                         saved = 0;
 522         }
 523         b43_radio_write16(dev, 0x007B, saved);
 524
 525         if (phy->rev >= 6) {
 526                 b43_phy_write(dev, 0x002E, backup[12]);
 527                 b43_phy_write(dev, 0x002F, backup[13]);
 528                 b43_phy_write(dev, 0x080F, backup[14]);
 529                 b43_phy_write(dev, 0x0810, backup[15]);
 530         }
 531         if (phy->rev != 1) {    /* Not in specs, but needed to prevent PPC machine check */
 532                 b43_phy_write(dev, 0x0814, backup[3]);
 533                 b43_phy_write(dev, 0x0815, backup[4]);
 534         }
 535         b43_phy_write(dev, 0x005A, backup[5]);
 536         b43_phy_write(dev, 0x0059, backup[6]);
 537         b43_phy_write(dev, 0x0058, backup[7]);
 538         b43_phy_write(dev, 0x000A, backup[8]);
 539         b43_phy_write(dev, 0x0003, backup[9]);
 540         b43_radio_write16(dev, 0x0043, backup[11]);
 541         b43_radio_write16(dev, 0x007A, backup[10]);
 542         b43_phy_write(dev, 0x0802, b43_phy_read(dev, 0x0802) | 0x1 | 0x2);
 543         b43_phy_set(dev, 0x0429, 0x8000);
 544         b43_set_original_gains(dev);
 545         if (phy->rev >= 6) {
 546                 b43_phy_write(dev, 0x0801, backup[16]);
 547                 b43_phy_write(dev, 0x0060, backup[17]);
 548                 b43_phy_write(dev, 0x0014, backup[18]);
 549                 b43_phy_write(dev, 0x0478, backup[19]);
 550         }
 551         b43_phy_write(dev, 0x0001, backup[0]);
 552         b43_phy_write(dev, 0x0812, backup[2]);
 553         b43_phy_write(dev, 0x0811, backup[1]);
 554 }
 555
 556 static void b43_calc_nrssi_slope(struct b43_wldev *dev)
 557 {
 558         struct b43_phy *phy = &dev->phy;
 559         struct b43_phy_g *gphy = phy->g;
 560         u16 backup[18] = { 0 };
 561         u16 tmp;
 562         s16 nrssi0, nrssi1;
 563
 564         B43_WARN_ON(phy->type != B43_PHYTYPE_G);
 565
 566         if (phy->radio_rev >= 9)
 567                 return;
 568         if (phy->radio_rev == 8)
 569                 b43_calc_nrssi_offset(dev);
 570
 571         b43_phy_mask(dev, B43_PHY_G_CRS, 0x7FFF);
 572         b43_phy_mask(dev, 0x0802, 0xFFFC);
 573         backup[7] = b43_read16(dev, 0x03E2);
 574         b43_write16(dev, 0x03E2, b43_read16(dev, 0x03E2) | 0x8000);
 575         backup[0] = b43_radio_read16(dev, 0x007A);
 576         backup[1] = b43_radio_read16(dev, 0x0052);
 577         backup[2] = b43_radio_read16(dev, 0x0043);
 578         backup[3] = b43_phy_read(dev, 0x0015);
 579         backup[4] = b43_phy_read(dev, 0x005A);
 580         backup[5] = b43_phy_read(dev, 0x0059);
 581         backup[6] = b43_phy_read(dev, 0x0058);
 582         backup[8] = b43_read16(dev, 0x03E6);
 583         backup[9] = b43_read16(dev, B43_MMIO_CHANNEL_EXT);
 584         if (phy->rev >= 3) {
 585                 backup[10] = b43_phy_read(dev, 0x002E);
 586                 backup[11] = b43_phy_read(dev, 0x002F);
 587                 backup[12] = b43_phy_read(dev, 0x080F);
 588                 backup[13] = b43_phy_read(dev, B43_PHY_G_LO_CONTROL);
 589                 backup[14] = b43_phy_read(dev, 0x0801);
 590                 backup[15] = b43_phy_read(dev, 0x0060);
 591                 backup[16] = b43_phy_read(dev, 0x0014);
 592                 backup[17] = b43_phy_read(dev, 0x0478);
 593                 b43_phy_write(dev, 0x002E, 0);
 594                 b43_phy_write(dev, B43_PHY_G_LO_CONTROL, 0);
 595                 switch (phy->rev) {
 596                 case 4:
 597                 case 6:
 598                 case 7:
 599                         b43_phy_set(dev, 0x0478, 0x0100);
 600                         b43_phy_set(dev, 0x0801, 0x0040);
 601                         break;
 602                 case 3:
 603                 case 5:
 604                         b43_phy_mask(dev, 0x0801, 0xFFBF);
 605                         break;
 606                 }
 607                 b43_phy_set(dev, 0x0060, 0x0040);
 608                 b43_phy_set(dev, 0x0014, 0x0200);
 609         }
 610         b43_radio_set(dev, 0x007A, 0x0070);
 611         b43_set_all_gains(dev, 0, 8, 0);
 612         b43_radio_mask(dev, 0x007A, 0x00F7);
 613         if (phy->rev >= 2) {
 614                 b43_phy_maskset(dev, 0x0811, 0xFFCF, 0x0030);
 615                 b43_phy_maskset(dev, 0x0812, 0xFFCF, 0x0010);
 616         }
 617         b43_radio_set(dev, 0x007A, 0x0080);
 618         udelay(20);
 619
 620         nrssi0 = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
 621         if (nrssi0 >= 0x0020)
 622                 nrssi0 -= 0x0040;
 623
 624         b43_radio_mask(dev, 0x007A, 0x007F);
 625         if (phy->rev >= 2) {
 626                 b43_phy_maskset(dev, 0x0003, 0xFF9F, 0x0040);
 627         }
 628
 629         b43_write16(dev, B43_MMIO_CHANNEL_EXT,
 630                     b43_read16(dev, B43_MMIO_CHANNEL_EXT)
 631                     | 0x2000);
 632         b43_radio_set(dev, 0x007A, 0x000F);
 633         b43_phy_write(dev, 0x0015, 0xF330);
 634         if (phy->rev >= 2) {
 635                 b43_phy_maskset(dev, 0x0812, 0xFFCF, 0x0020);
 636                 b43_phy_maskset(dev, 0x0811, 0xFFCF, 0x0020);
 637         }
 638
 639         b43_set_all_gains(dev, 3, 0, 1);
 640         if (phy->radio_rev == 8) {
 641                 b43_radio_write16(dev, 0x0043, 0x001F);
 642         } else {
 643                 tmp = b43_radio_read16(dev, 0x0052) & 0xFF0F;
 644                 b43_radio_write16(dev, 0x0052, tmp | 0x0060);
 645                 tmp = b43_radio_read16(dev, 0x0043) & 0xFFF0;
 646                 b43_radio_write16(dev, 0x0043, tmp | 0x0009);
 647         }
 648         b43_phy_write(dev, 0x005A, 0x0480);
 649         b43_phy_write(dev, 0x0059, 0x0810);
 650         b43_phy_write(dev, 0x0058, 0x000D);
 651         udelay(20);
 652         nrssi1 = (s16) ((b43_phy_read(dev, 0x047F) >> 8) & 0x003F);
 653         if (nrssi1 >= 0x0020)
 654                 nrssi1 -= 0x0040;
 655         if (nrssi0 == nrssi1)
 656                 gphy->nrssislope = 0x00010000;
 657         else
 658                 gphy->nrssislope = 0x00400000 / (nrssi0 - nrssi1);
 659         if (nrssi0 >= -4) {
 660                 gphy->nrssi[0] = nrssi1;
 661                 gphy->nrssi[1] = nrssi0;
 662         }
 663         if (phy->rev >= 3) {
 664                 b43_phy_write(dev, 0x002E, backup[10]);
 665                 b43_phy_write(dev, 0x002F, backup[11]);
 666                 b43_phy_write(dev, 0x080F, backup[12]);
 667                 b43_phy_write(dev, B43_PHY_G_LO_CONTROL, backup[13]);
 668         }
 669         if (phy->rev >= 2) {
 670                 b43_phy_mask(dev, 0x0812, 0xFFCF);
 671                 b43_phy_mask(dev, 0x0811, 0xFFCF);
 672         }
 673
 674         b43_radio_write16(dev, 0x007A, backup[0]);
 675         b43_radio_write16(dev, 0x0052, backup[1]);
 676         b43_radio_write16(dev, 0x0043, backup[2]);
 677         b43_write16(dev, 0x03E2, backup[7]);
 678         b43_write16(dev, 0x03E6, backup[8]);
 679         b43_write16(dev, B43_MMIO_CHANNEL_EXT, backup[9]);
 680         b43_phy_write(dev, 0x0015, backup[3]);
 681         b43_phy_write(dev, 0x005A, backup[4]);
 682         b43_phy_write(dev, 0x0059, backup[5]);
 683         b43_phy_write(dev, 0x0058, backup[6]);
 684         b43_synth_pu_workaround(dev, phy->channel);
 685         b43_phy_set(dev, 0x0802, (0x0001 | 0x0002));
 686         b43_set_original_gains(dev);
 687         b43_phy_set(dev, B43_PHY_G_CRS, 0x8000);
 688         if (phy->rev >= 3) {
 689                 b43_phy_write(dev, 0x0801, backup[14]);
 690                 b43_phy_write(dev, 0x0060, backup[15]);
 691                 b43_phy_write(dev, 0x0014, backup[16]);
 692                 b43_phy_write(dev, 0x0478, backup[17]);
 693         }
 694         b43_nrssi_mem_update(dev);
 695         b43_calc_nrssi_threshold(dev);
 696 }
 697
 698 static void b43_calc_nrssi_threshold(struct b43_wldev *dev)
 699 {
 700         struct b43_phy *phy = &dev->phy;
 701         struct b43_phy_g *gphy = phy->g;
 702         s32 a, b;
 703         s16 tmp16;
 704         u16 tmp_u16;
 705
 706         B43_WARN_ON(phy->type != B43_PHYTYPE_G);
 707
 708         if (!phy->gmode ||
 709             !(dev->dev->bus_sprom->boardflags_lo & B43_BFL_RSSI)) {
 710                 tmp16 = b43_nrssi_hw_read(dev, 0x20);
 711                 if (tmp16 >= 0x20)
 712                         tmp16 -= 0x40;
 713                 if (tmp16 < 3) {
 714                         b43_phy_maskset(dev, 0x048A, 0xF000, 0x09EB);
 715                 } else {
 716                         b43_phy_maskset(dev, 0x048A, 0xF000, 0x0AED);
 717                 }
 718         } else {
 719                 if (gphy->interfmode == B43_INTERFMODE_NONWLAN) {
 720                         a = 0xE;
 721                         b = 0xA;
 722                 } else if (!gphy->aci_wlan_automatic && gphy->aci_enable) {
 723                         a = 0x13;
 724                         b = 0x12;
 725                 } else {
 726                         a = 0xE;
 727                         b = 0x11;
 728                 }
 729
 730                 a = a * (gphy->nrssi[1] - gphy->nrssi[0]);
 731                 a += (gphy->nrssi[0] << 6);
 732                 if (a < 32)
 733                         a += 31;
 734                 else
 735                         a += 32;
 736                 a = a >> 6;
 737                 a = clamp_val(a, -31, 31);
 738
 739                 b = b * (gphy->nrssi[1] - gphy->nrssi[0]);
 740                 b += (gphy->nrssi[0] << 6);
 741                 if (b < 32)
 742                         b += 31;
 743                 else
 744                         b += 32;
 745                 b = b >> 6;
 746                 b = clamp_val(b, -31, 31);
 747
 748                 tmp_u16 = b43_phy_read(dev, 0x048A) & 0xF000;
 749                 tmp_u16 |= ((u32) b & 0x0000003F);
 750                 tmp_u16 |= (((u32) a & 0x0000003F) << 6);
 751                 b43_phy_write(dev, 0x048A, tmp_u16);
 752         }
 753 }
 754
 755 /* Stack implementation to save/restore values from the
 756  * interference mitigation code.
 757  * It is save to restore values in random order.
 758  */
 759 static void _stack_save(u32 *_stackptr, size_t *stackidx,
 760                         u8 id, u16 offset, u16 value)
 761 {
 762         u32 *stackptr = &(_stackptr[*stackidx]);
 763
 764         B43_WARN_ON(offset & 0xF000);
 765         B43_WARN_ON(id & 0xF0);
 766         *stackptr = offset;
 767         *stackptr |= ((u32) id) << 12;
 768         *stackptr |= ((u32) value) << 16;
 769         (*stackidx)++;
 770         B43_WARN_ON(*stackidx >= B43_INTERFSTACK_SIZE);
 771 }
 772
 773 static u16 _stack_restore(u32 *stackptr, u8 id, u16 offset)
 774 {
 775         size_t i;
 776
 777         B43_WARN_ON(offset & 0xF000);
 778         B43_WARN_ON(id & 0xF0);
 779         for (i = 0; i < B43_INTERFSTACK_SIZE; i++, stackptr++) {
 780                 if ((*stackptr & 0x00000FFF) != offset)
 781                         continue;
 782                 if (((*stackptr & 0x0000F000) >> 12) != id)
 783                         continue;
 784                 return ((*stackptr & 0xFFFF0000) >> 16);
 785         }
 786         B43_WARN_ON(1);
 787
 788         return 0;
 789 }
 790
 791 #define phy_stacksave(offset)                                   \
 792         do {                                                    \
 793                 _stack_save(stack, &stackidx, 0x1, (offset),    \
 794                             b43_phy_read(dev, (offset)));       \
 795         } while (0)
 796 #define phy_stackrestore(offset)                                \
 797         do {                                                    \
 798                 b43_phy_write(dev, (offset),            \
 799                                   _stack_restore(stack, 0x1,    \
 800                                                  (offset)));    \
 801         } while (0)
 802 #define radio_stacksave(offset)                                         \
 803         do {                                                            \
 804                 _stack_save(stack, &stackidx, 0x2, (offset),            \
 805                             b43_radio_read16(dev, (offset)));   \
 806         } while (0)
 807 #define radio_stackrestore(offset)                                      \
 808         do {                                                            \
 809                 b43_radio_write16(dev, (offset),                        \
 810                                       _stack_restore(stack, 0x2,        \
 811                                                      (offset)));        \
 812         } while (0)
 813 #define ofdmtab_stacksave(table, offset)                        \
 814         do {                                                    \
 815                 _stack_save(stack, &stackidx, 0x3, (offset)|(table),    \
 816                             b43_ofdmtab_read16(dev, (table), (offset)));        \
 817         } while (0)
 818 #define ofdmtab_stackrestore(table, offset)                     \
 819         do {                                                    \
 820                 b43_ofdmtab_write16(dev, (table),       (offset),       \
 821                                   _stack_restore(stack, 0x3,    \
 822                                                  (offset)|(table)));    \
 823         } while (0)
 824
 825 static void
 826 b43_radio_interference_mitigation_enable(struct b43_wldev *dev, int mode)
 827 {
 828         struct b43_phy *phy = &dev->phy;
 829         struct b43_phy_g *gphy = phy->g;
 830         u16 tmp, flipped;
 831         size_t stackidx = 0;
 832         u32 *stack = gphy->interfstack;
 833
 834         switch (mode) {
 835         case B43_INTERFMODE_NONWLAN:
 836                 if (phy->rev != 1) {
 837                         b43_phy_set(dev, 0x042B, 0x0800);
 838                         b43_phy_mask(dev, B43_PHY_G_CRS, ~0x4000);
 839                         break;
 840                 }
 841                 radio_stacksave(0x0078);
 842                 tmp = (b43_radio_read16(dev, 0x0078) & 0x001E);
 843                 B43_WARN_ON(tmp > 15);
 844                 flipped = bitrev4(tmp);
 845                 if (flipped < 10 && flipped >= 8)
 846                         flipped = 7;
 847                 else if (flipped >= 10)
 848                         flipped -= 3;
 849                 flipped = (bitrev4(flipped) << 1) | 0x0020;
 850                 b43_radio_write16(dev, 0x0078, flipped);
 851
 852                 b43_calc_nrssi_threshold(dev);
 853
 854                 phy_stacksave(0x0406);
 855                 b43_phy_write(dev, 0x0406, 0x7E28);
 856
 857                 b43_phy_set(dev, 0x042B, 0x0800);
 858                 b43_phy_set(dev, B43_PHY_RADIO_BITFIELD, 0x1000);
 859
 860                 phy_stacksave(0x04A0);
 861                 b43_phy_maskset(dev, 0x04A0, 0xC0C0, 0x0008);
 862                 phy_stacksave(0x04A1);
 863                 b43_phy_maskset(dev, 0x04A1, 0xC0C0, 0x0605);
 864                 phy_stacksave(0x04A2);
 865                 b43_phy_maskset(dev, 0x04A2, 0xC0C0, 0x0204);
 866                 phy_stacksave(0x04A8);
 867                 b43_phy_maskset(dev, 0x04A8, 0xC0C0, 0x0803);
 868                 phy_stacksave(0x04AB);
 869                 b43_phy_maskset(dev, 0x04AB, 0xC0C0, 0x0605);
 870
 871                 phy_stacksave(0x04A7);
 872                 b43_phy_write(dev, 0x04A7, 0x0002);
 873                 phy_stacksave(0x04A3);
 874                 b43_phy_write(dev, 0x04A3, 0x287A);
 875                 phy_stacksave(0x04A9);
 876                 b43_phy_write(dev, 0x04A9, 0x2027);
 877                 phy_stacksave(0x0493);
 878                 b43_phy_write(dev, 0x0493, 0x32F5);
 879                 phy_stacksave(0x04AA);
 880                 b43_phy_write(dev, 0x04AA, 0x2027);
 881                 phy_stacksave(0x04AC);
 882                 b43_phy_write(dev, 0x04AC, 0x32F5);
 883                 break;
 884         case B43_INTERFMODE_MANUALWLAN:
 885                 if (b43_phy_read(dev, 0x0033) & 0x0800)
 886                         break;
 887
 888                 gphy->aci_enable = true;
 889
 890                 phy_stacksave(B43_PHY_RADIO_BITFIELD);
 891                 phy_stacksave(B43_PHY_G_CRS);
 892                 if (phy->rev < 2) {
 893                         phy_stacksave(0x0406);
 894                 } else {
 895                         phy_stacksave(0x04C0);
 896                         phy_stacksave(0x04C1);
 897                 }
 898                 phy_stacksave(0x0033);
 899                 phy_stacksave(0x04A7);
 900                 phy_stacksave(0x04A3);
 901                 phy_stacksave(0x04A9);
 902                 phy_stacksave(0x04AA);
 903                 phy_stacksave(0x04AC);
 904                 phy_stacksave(0x0493);
 905                 phy_stacksave(0x04A1);
 906                 phy_stacksave(0x04A0);
 907                 phy_stacksave(0x04A2);
 908                 phy_stacksave(0x048A);
 909                 phy_stacksave(0x04A8);
 910                 phy_stacksave(0x04AB);
 911                 if (phy->rev == 2) {
 912                         phy_stacksave(0x04AD);
 913                         phy_stacksave(0x04AE);
 914                 } else if (phy->rev >= 3) {
 915                         phy_stacksave(0x04AD);
 916                         phy_stacksave(0x0415);
 917                         phy_stacksave(0x0416);
 918                         phy_stacksave(0x0417);
 919                         ofdmtab_stacksave(0x1A00, 0x2);
 920                         ofdmtab_stacksave(0x1A00, 0x3);
 921                 }
 922                 phy_stacksave(0x042B);
 923                 phy_stacksave(0x048C);
 924
 925                 b43_phy_mask(dev, B43_PHY_RADIO_BITFIELD, ~0x1000);
 926                 b43_phy_maskset(dev, B43_PHY_G_CRS, 0xFFFC, 0x0002);
 927
 928                 b43_phy_write(dev, 0x0033, 0x0800);
 929                 b43_phy_write(dev, 0x04A3, 0x2027);
 930                 b43_phy_write(dev, 0x04A9, 0x1CA8);
 931                 b43_phy_write(dev, 0x0493, 0x287A);
 932                 b43_phy_write(dev, 0x04AA, 0x1CA8);
 933                 b43_phy_write(dev, 0x04AC, 0x287A);
 934
 935                 b43_phy_maskset(dev, 0x04A0, 0xFFC0, 0x001A);
 936                 b43_phy_write(dev, 0x04A7, 0x000D);
 937
 938                 if (phy->rev < 2) {
 939                         b43_phy_write(dev, 0x0406, 0xFF0D);
 940                 } else if (phy->rev == 2) {
 941                         b43_phy_write(dev, 0x04C0, 0xFFFF);
 942                         b43_phy_write(dev, 0x04C1, 0x00A9);
 943                 } else {
 944                         b43_phy_write(dev, 0x04C0, 0x00C1);
 945                         b43_phy_write(dev, 0x04C1, 0x0059);
 946                 }
 947
 948                 b43_phy_maskset(dev, 0x04A1, 0xC0FF, 0x1800);
 949                 b43_phy_maskset(dev, 0x04A1, 0xFFC0, 0x0015);
 950                 b43_phy_maskset(dev, 0x04A8, 0xCFFF, 0x1000);
 951                 b43_phy_maskset(dev, 0x04A8, 0xF0FF, 0x0A00);
 952                 b43_phy_maskset(dev, 0x04AB, 0xCFFF, 0x1000);
 953                 b43_phy_maskset(dev, 0x04AB, 0xF0FF, 0x0800);
 954                 b43_phy_maskset(dev, 0x04AB, 0xFFCF, 0x0010);
 955                 b43_phy_maskset(dev, 0x04AB, 0xFFF0, 0x0005);
 956                 b43_phy_maskset(dev, 0x04A8, 0xFFCF, 0x0010);
 957                 b43_phy_maskset(dev, 0x04A8, 0xFFF0, 0x0006);
 958                 b43_phy_maskset(dev, 0x04A2, 0xF0FF, 0x0800);
 959                 b43_phy_maskset(dev, 0x04A0, 0xF0FF, 0x0500);
 960                 b43_phy_maskset(dev, 0x04A2, 0xFFF0, 0x000B);
 961
 962                 if (phy->rev >= 3) {
 963                         b43_phy_mask(dev, 0x048A, 0x7FFF);
 964                         b43_phy_maskset(dev, 0x0415, 0x8000, 0x36D8);
 965                         b43_phy_maskset(dev, 0x0416, 0x8000, 0x36D8);
 966                         b43_phy_maskset(dev, 0x0417, 0xFE00, 0x016D);
 967                 } else {
 968                         b43_phy_set(dev, 0x048A, 0x1000);
 969                         b43_phy_maskset(dev, 0x048A, 0x9FFF, 0x2000);
 970                         b43_hf_write(dev, b43_hf_read(dev) | B43_HF_ACIW);
 971                 }
 972                 if (phy->rev >= 2) {
 973                         b43_phy_set(dev, 0x042B, 0x0800);
 974                 }
 975                 b43_phy_maskset(dev, 0x048C, 0xF0FF, 0x0200);
 976                 if (phy->rev == 2) {
 977                         b43_phy_maskset(dev, 0x04AE, 0xFF00, 0x007F);
 978                         b43_phy_maskset(dev, 0x04AD, 0x00FF, 0x1300);
 979                 } else if (phy->rev >= 6) {
 980                         b43_ofdmtab_write16(dev, 0x1A00, 0x3, 0x007F);
 981                         b43_ofdmtab_write16(dev, 0x1A00, 0x2, 0x007F);
 982                         b43_phy_mask(dev, 0x04AD, 0x00FF);
 983                 }
 984                 b43_calc_nrssi_slope(dev);
 985                 break;
 986         default:
 987                 B43_WARN_ON(1);
 988         }
 989 }
 990
 991 static void
 992 b43_radio_interference_mitigation_disable(struct b43_wldev *dev, int mode)
 993 {
 994         struct b43_phy *phy = &dev->phy;
 995         struct b43_phy_g *gphy = phy->g;
 996         u32 *stack = gphy->interfstack;
 997
 998         switch (mode) {
 999         case B43_INTERFMODE_NONWLAN:
1000                 if (phy->rev != 1) {
1001                         b43_phy_mask(dev, 0x042B, ~0x0800);
1002                         b43_phy_set(dev, B43_PHY_G_CRS, 0x4000);
1003                         break;
1004                 }
1005                 radio_stackrestore(0x0078);
1006                 b43_calc_nrssi_threshold(dev);
1007                 phy_stackrestore(0x0406);
1008                 b43_phy_mask(dev, 0x042B, ~0x0800);
1009                 if (!dev->bad_frames_preempt) {
1010                         b43_phy_mask(dev, B43_PHY_RADIO_BITFIELD, ~(1 << 11));
1011                 }
1012                 b43_phy_set(dev, B43_PHY_G_CRS, 0x4000);
1013                 phy_stackrestore(0x04A0);
1014                 phy_stackrestore(0x04A1);
1015                 phy_stackrestore(0x04A2);
1016                 phy_stackrestore(0x04A8);
1017                 phy_stackrestore(0x04AB);
1018                 phy_stackrestore(0x04A7);
1019                 phy_stackrestore(0x04A3);
1020                 phy_stackrestore(0x04A9);
1021                 phy_stackrestore(0x0493);
1022                 phy_stackrestore(0x04AA);
1023                 phy_stackrestore(0x04AC);
1024                 break;
1025         case B43_INTERFMODE_MANUALWLAN:
1026                 if (!(b43_phy_read(dev, 0x0033) & 0x0800))
1027                         break;
1028
1029                 gphy->aci_enable = false;
1030
1031                 phy_stackrestore(B43_PHY_RADIO_BITFIELD);
1032                 phy_stackrestore(B43_PHY_G_CRS);
1033                 phy_stackrestore(0x0033);
1034                 phy_stackrestore(0x04A3);
1035                 phy_stackrestore(0x04A9);
1036                 phy_stackrestore(0x0493);
1037                 phy_stackrestore(0x04AA);
1038                 phy_stackrestore(0x04AC);
1039                 phy_stackrestore(0x04A0);
1040                 phy_stackrestore(0x04A7);
1041                 if (phy->rev >= 2) {
1042                         phy_stackrestore(0x04C0);
1043                         phy_stackrestore(0x04C1);
1044                 } else
1045                         phy_stackrestore(0x0406);
1046                 phy_stackrestore(0x04A1);
1047                 phy_stackrestore(0x04AB);
1048                 phy_stackrestore(0x04A8);
1049                 if (phy->rev == 2) {
1050                         phy_stackrestore(0x04AD);
1051                         phy_stackrestore(0x04AE);
1052                 } else if (phy->rev >= 3) {
1053                         phy_stackrestore(0x04AD);
1054                         phy_stackrestore(0x0415);
1055                         phy_stackrestore(0x0416);
1056                         phy_stackrestore(0x0417);
1057                         ofdmtab_stackrestore(0x1A00, 0x2);
1058                         ofdmtab_stackrestore(0x1A00, 0x3);
1059                 }
1060                 phy_stackrestore(0x04A2);
1061                 phy_stackrestore(0x048A);
1062                 phy_stackrestore(0x042B);
1063                 phy_stackrestore(0x048C);
1064                 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_ACIW);
1065                 b43_calc_nrssi_slope(dev);
1066                 break;
1067         default:
1068                 B43_WARN_ON(1);
1069         }
1070 }
1071
1072 #undef phy_stacksave
1073 #undef phy_stackrestore
1074 #undef radio_stacksave
1075 #undef radio_stackrestore
1076 #undef ofdmtab_stacksave
1077 #undef ofdmtab_stackrestore
1078
1079 static u16 b43_radio_core_calibration_value(struct b43_wldev *dev)
1080 {
1081         u16 reg, index, ret;
1082
1083         static const u8 rcc_table[] = {
1084                 0x02, 0x03, 0x01, 0x0F,
1085                 0x06, 0x07, 0x05, 0x0F,
1086                 0x0A, 0x0B, 0x09, 0x0F,
1087                 0x0E, 0x0F, 0x0D, 0x0F,
1088         };
1089
1090         reg = b43_radio_read16(dev, 0x60);
1091         index = (reg & 0x001E) >> 1;
1092         ret = rcc_table[index] << 1;
1093         ret |= (reg & 0x0001);
1094         ret |= 0x0020;
1095
1096         return ret;
1097 }
1098
1099 #define LPD(L, P, D)    (((L) << 2) | ((P) << 1) | ((D) << 0))
1100 static u16 radio2050_rfover_val(struct b43_wldev *dev,
1101                                 u16 phy_register, unsigned int lpd)
1102 {
1103         struct b43_phy *phy = &dev->phy;
1104         struct b43_phy_g *gphy = phy->g;
1105         struct ssb_sprom *sprom = dev->dev->bus_sprom;
1106
1107         if (!phy->gmode)
1108                 return 0;
1109
1110         if (has_loopback_gain(phy)) {
1111                 int max_lb_gain = gphy->max_lb_gain;
1112                 u16 extlna;
1113                 u16 i;
1114
1115                 if (phy->radio_rev == 8)
1116                         max_lb_gain += 0x3E;
1117                 else
1118                         max_lb_gain += 0x26;
1119                 if (max_lb_gain >= 0x46) {
1120                         extlna = 0x3000;
1121                         max_lb_gain -= 0x46;
1122                 } else if (max_lb_gain >= 0x3A) {
1123                         extlna = 0x1000;
1124                         max_lb_gain -= 0x3A;
1125                 } else if (max_lb_gain >= 0x2E) {
1126                         extlna = 0x2000;
1127                         max_lb_gain -= 0x2E;
1128                 } else {
1129                         extlna = 0;
1130                         max_lb_gain -= 0x10;
1131                 }
1132
1133                 for (i = 0; i < 16; i++) {
1134                         max_lb_gain -= (i * 6);
1135                         if (max_lb_gain < 6)
1136                                 break;
1137                 }
1138
1139                 if ((phy->rev < 7) ||
1140                     !(sprom->boardflags_lo & B43_BFL_EXTLNA)) {
1141                         if (phy_register == B43_PHY_RFOVER) {
1142                                 return 0x1B3;
1143                         } else if (phy_register == B43_PHY_RFOVERVAL) {
1144                                 extlna |= (i << 8);
1145                                 switch (lpd) {
1146                                 case LPD(0, 1, 1):
1147                                         return 0x0F92;
1148                                 case LPD(0, 0, 1):
1149                                 case LPD(1, 0, 1):
1150                                         return (0x0092 | extlna);
1151                                 case LPD(1, 0, 0):
1152                                         return (0x0093 | extlna);
1153                                 }
1154                                 B43_WARN_ON(1);
1155                         }
1156                         B43_WARN_ON(1);
1157                 } else {
1158                         if (phy_register == B43_PHY_RFOVER) {
1159                                 return 0x9B3;
1160                         } else if (phy_register == B43_PHY_RFOVERVAL) {
1161                                 if (extlna)
1162                                         extlna |= 0x8000;
1163                                 extlna |= (i << 8);
1164                                 switch (lpd) {
1165                                 case LPD(0, 1, 1):
1166                                         return 0x8F92;
1167                                 case LPD(0, 0, 1):
1168                                         return (0x8092 | extlna);
1169                                 case LPD(1, 0, 1):
1170                                         return (0x2092 | extlna);
1171                                 case LPD(1, 0, 0):
1172                                         return (0x2093 | extlna);
1173                                 }
1174                                 B43_WARN_ON(1);
1175                         }
1176                         B43_WARN_ON(1);
1177                 }
1178         } else {
1179                 if ((phy->rev < 7) ||
1180                     !(sprom->boardflags_lo & B43_BFL_EXTLNA)) {
1181                         if (phy_register == B43_PHY_RFOVER) {
1182                                 return 0x1B3;
1183                         } else if (phy_register == B43_PHY_RFOVERVAL) {
1184                                 switch (lpd) {
1185                                 case LPD(0, 1, 1):
1186                                         return 0x0FB2;
1187                                 case LPD(0, 0, 1):
1188                                         return 0x00B2;
1189                                 case LPD(1, 0, 1):
1190                                         return 0x30B2;
1191                                 case LPD(1, 0, 0):
1192                                         return 0x30B3;
1193                                 }
1194                                 B43_WARN_ON(1);
1195                         }
1196                         B43_WARN_ON(1);
1197                 } else {
1198                         if (phy_register == B43_PHY_RFOVER) {
1199                                 return 0x9B3;
1200                         } else if (phy_register == B43_PHY_RFOVERVAL) {
1201                                 switch (lpd) {
1202                                 case LPD(0, 1, 1):
1203                                         return 0x8FB2;
1204                                 case LPD(0, 0, 1):
1205                                         return 0x80B2;
1206                                 case LPD(1, 0, 1):
1207                                         return 0x20B2;
1208                                 case LPD(1, 0, 0):
1209                                         return 0x20B3;
1210                                 }
1211                                 B43_WARN_ON(1);
1212                         }
1213                         B43_WARN_ON(1);
1214                 }
1215         }
1216         return 0;
1217 }
1218
1219 struct init2050_saved_values {
1220         /* Core registers */
1221         u16 reg_3EC;
1222         u16 reg_3E6;
1223         u16 reg_3F4;
1224         /* Radio registers */
1225         u16 radio_43;
1226         u16 radio_51;
1227         u16 radio_52;
1228         /* PHY registers */
1229         u16 phy_pgactl;
1230         u16 phy_cck_5A;
1231         u16 phy_cck_59;
1232         u16 phy_cck_58;
1233         u16 phy_cck_30;
1234         u16 phy_rfover;
1235         u16 phy_rfoverval;
1236         u16 phy_analogover;
1237         u16 phy_analogoverval;
1238         u16 phy_crs0;
1239         u16 phy_classctl;
1240         u16 phy_lo_mask;
1241         u16 phy_lo_ctl;
1242         u16 phy_syncctl;
1243 };
1244
1245 static u16 b43_radio_init2050(struct b43_wldev *dev)
1246 {
1247         struct b43_phy *phy = &dev->phy;
1248         struct init2050_saved_values sav;
1249         u16 rcc;
1250         u16 radio78;
1251         u16 ret;
1252         u16 i, j;
1253         u32 tmp1 = 0, tmp2 = 0;
1254
1255         memset(&sav, 0, sizeof(sav));   /* get rid of "may be used uninitialized..." */
1256
1257         sav.radio_43 = b43_radio_read16(dev, 0x43);
1258         sav.radio_51 = b43_radio_read16(dev, 0x51);
1259         sav.radio_52 = b43_radio_read16(dev, 0x52);
1260         sav.phy_pgactl = b43_phy_read(dev, B43_PHY_PGACTL);
1261         sav.phy_cck_5A = b43_phy_read(dev, B43_PHY_CCK(0x5A));
1262         sav.phy_cck_59 = b43_phy_read(dev, B43_PHY_CCK(0x59));
1263         sav.phy_cck_58 = b43_phy_read(dev, B43_PHY_CCK(0x58));
1264
1265         if (phy->type == B43_PHYTYPE_B) {
1266                 sav.phy_cck_30 = b43_phy_read(dev, B43_PHY_CCK(0x30));
1267                 sav.reg_3EC = b43_read16(dev, 0x3EC);
1268
1269                 b43_phy_write(dev, B43_PHY_CCK(0x30), 0xFF);
1270                 b43_write16(dev, 0x3EC, 0x3F3F);
1271         } else if (phy->gmode || phy->rev >= 2) {
1272                 sav.phy_rfover = b43_phy_read(dev, B43_PHY_RFOVER);
1273                 sav.phy_rfoverval = b43_phy_read(dev, B43_PHY_RFOVERVAL);
1274                 sav.phy_analogover = b43_phy_read(dev, B43_PHY_ANALOGOVER);
1275                 sav.phy_analogoverval =
1276                     b43_phy_read(dev, B43_PHY_ANALOGOVERVAL);
1277                 sav.phy_crs0 = b43_phy_read(dev, B43_PHY_CRS0);
1278                 sav.phy_classctl = b43_phy_read(dev, B43_PHY_CLASSCTL);
1279
1280                 b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0003);
1281                 b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFC);
1282                 b43_phy_mask(dev, B43_PHY_CRS0, 0x7FFF);
1283                 b43_phy_mask(dev, B43_PHY_CLASSCTL, 0xFFFC);
1284                 if (has_loopback_gain(phy)) {
1285                         sav.phy_lo_mask = b43_phy_read(dev, B43_PHY_LO_MASK);
1286                         sav.phy_lo_ctl = b43_phy_read(dev, B43_PHY_LO_CTL);
1287
1288                         if (phy->rev >= 3)
1289                                 b43_phy_write(dev, B43_PHY_LO_MASK, 0xC020);
1290                         else
1291                                 b43_phy_write(dev, B43_PHY_LO_MASK, 0x8020);
1292                         b43_phy_write(dev, B43_PHY_LO_CTL, 0);
1293                 }
1294
1295                 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1296                               radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
1297                                                    LPD(0, 1, 1)));
1298                 b43_phy_write(dev, B43_PHY_RFOVER,
1299                               radio2050_rfover_val(dev, B43_PHY_RFOVER, 0));
1300         }
1301         b43_write16(dev, 0x3E2, b43_read16(dev, 0x3E2) | 0x8000);
1302
1303         sav.phy_syncctl = b43_phy_read(dev, B43_PHY_SYNCCTL);
1304         b43_phy_mask(dev, B43_PHY_SYNCCTL, 0xFF7F);
1305         sav.reg_3E6 = b43_read16(dev, 0x3E6);
1306         sav.reg_3F4 = b43_read16(dev, 0x3F4);
1307
1308         if (phy->analog == 0) {
1309                 b43_write16(dev, 0x03E6, 0x0122);
1310         } else {
1311                 if (phy->analog >= 2) {
1312                         b43_phy_maskset(dev, B43_PHY_CCK(0x03), 0xFFBF, 0x40);
1313                 }
1314                 b43_write16(dev, B43_MMIO_CHANNEL_EXT,
1315                             (b43_read16(dev, B43_MMIO_CHANNEL_EXT) | 0x2000));
1316         }
1317
1318         rcc = b43_radio_core_calibration_value(dev);
1319
1320         if (phy->type == B43_PHYTYPE_B)
1321                 b43_radio_write16(dev, 0x78, 0x26);
1322         if (phy->gmode || phy->rev >= 2) {
1323                 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1324                               radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
1325                                                    LPD(0, 1, 1)));
1326         }
1327         b43_phy_write(dev, B43_PHY_PGACTL, 0xBFAF);
1328         b43_phy_write(dev, B43_PHY_CCK(0x2B), 0x1403);
1329         if (phy->gmode || phy->rev >= 2) {
1330                 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1331                               radio2050_rfover_val(dev, B43_PHY_RFOVERVAL,
1332                                                    LPD(0, 0, 1)));
1333         }
1334         b43_phy_write(dev, B43_PHY_PGACTL, 0xBFA0);
1335         b43_radio_set(dev, 0x51, 0x0004);
1336         if (phy->radio_rev == 8) {
1337                 b43_radio_write16(dev, 0x43, 0x1F);
1338         } else {
1339                 b43_radio_write16(dev, 0x52, 0);
1340                 b43_radio_maskset(dev, 0x43, 0xFFF0, 0x0009);
1341         }
1342         b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
1343
1344         for (i = 0; i < 16; i++) {
1345                 b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0480);
1346                 b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
1347                 b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
1348                 if (phy->gmode || phy->rev >= 2) {
1349                         b43_phy_write(dev, B43_PHY_RFOVERVAL,
1350                                       radio2050_rfover_val(dev,
1351                                                            B43_PHY_RFOVERVAL,
1352                                                            LPD(1, 0, 1)));
1353                 }
1354                 b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
1355                 udelay(10);
1356                 if (phy->gmode || phy->rev >= 2) {
1357                         b43_phy_write(dev, B43_PHY_RFOVERVAL,
1358                                       radio2050_rfover_val(dev,
1359                                                            B43_PHY_RFOVERVAL,
1360                                                            LPD(1, 0, 1)));
1361                 }
1362                 b43_phy_write(dev, B43_PHY_PGACTL, 0xEFB0);
1363                 udelay(10);
1364                 if (phy->gmode || phy->rev >= 2) {
1365                         b43_phy_write(dev, B43_PHY_RFOVERVAL,
1366                                       radio2050_rfover_val(dev,
1367                                                            B43_PHY_RFOVERVAL,
1368                                                            LPD(1, 0, 0)));
1369                 }
1370                 b43_phy_write(dev, B43_PHY_PGACTL, 0xFFF0);
1371                 udelay(20);
1372                 tmp1 += b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
1373                 b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
1374                 if (phy->gmode || phy->rev >= 2) {
1375                         b43_phy_write(dev, B43_PHY_RFOVERVAL,
1376                                       radio2050_rfover_val(dev,
1377                                                            B43_PHY_RFOVERVAL,
1378                                                            LPD(1, 0, 1)));
1379                 }
1380                 b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
1381         }
1382         udelay(10);
1383
1384         b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
1385         tmp1++;
1386         tmp1 >>= 9;
1387
1388         for (i = 0; i < 16; i++) {
1389                 radio78 = (bitrev4(i) << 1) | 0x0020;
1390                 b43_radio_write16(dev, 0x78, radio78);
1391                 udelay(10);
1392                 for (j = 0; j < 16; j++) {
1393                         b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0D80);
1394                         b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
1395                         b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
1396                         if (phy->gmode || phy->rev >= 2) {
1397                                 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1398                                               radio2050_rfover_val(dev,
1399                                                                    B43_PHY_RFOVERVAL,
1400                                                                    LPD(1, 0,
1401                                                                        1)));
1402                         }
1403                         b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
1404                         udelay(10);
1405                         if (phy->gmode || phy->rev >= 2) {
1406                                 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1407                                               radio2050_rfover_val(dev,
1408                                                                    B43_PHY_RFOVERVAL,
1409                                                                    LPD(1, 0,
1410                                                                        1)));
1411                         }
1412                         b43_phy_write(dev, B43_PHY_PGACTL, 0xEFB0);
1413                         udelay(10);
1414                         if (phy->gmode || phy->rev >= 2) {
1415                                 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1416                                               radio2050_rfover_val(dev,
1417                                                                    B43_PHY_RFOVERVAL,
1418                                                                    LPD(1, 0,
1419                                                                        0)));
1420                         }
1421                         b43_phy_write(dev, B43_PHY_PGACTL, 0xFFF0);
1422                         udelay(10);
1423                         tmp2 += b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
1424                         b43_phy_write(dev, B43_PHY_CCK(0x58), 0);
1425                         if (phy->gmode || phy->rev >= 2) {
1426                                 b43_phy_write(dev, B43_PHY_RFOVERVAL,
1427                                               radio2050_rfover_val(dev,
1428                                                                    B43_PHY_RFOVERVAL,
1429                                                                    LPD(1, 0,
1430                                                                        1)));
1431                         }
1432                         b43_phy_write(dev, B43_PHY_PGACTL, 0xAFB0);
1433                 }
1434                 tmp2++;
1435                 tmp2 >>= 8;
1436                 if (tmp1 < tmp2)
1437                         break;
1438         }
1439
1440         /* Restore the registers */
1441         b43_phy_write(dev, B43_PHY_PGACTL, sav.phy_pgactl);
1442         b43_radio_write16(dev, 0x51, sav.radio_51);
1443         b43_radio_write16(dev, 0x52, sav.radio_52);
1444         b43_radio_write16(dev, 0x43, sav.radio_43);
1445         b43_phy_write(dev, B43_PHY_CCK(0x5A), sav.phy_cck_5A);
1446         b43_phy_write(dev, B43_PHY_CCK(0x59), sav.phy_cck_59);
1447         b43_phy_write(dev, B43_PHY_CCK(0x58), sav.phy_cck_58);
1448         b43_write16(dev, 0x3E6, sav.reg_3E6);
1449         if (phy->analog != 0)
1450                 b43_write16(dev, 0x3F4, sav.reg_3F4);
1451         b43_phy_write(dev, B43_PHY_SYNCCTL, sav.phy_syncctl);
1452         b43_synth_pu_workaround(dev, phy->channel);
1453         if (phy->type == B43_PHYTYPE_B) {
1454                 b43_phy_write(dev, B43_PHY_CCK(0x30), sav.phy_cck_30);
1455                 b43_write16(dev, 0x3EC, sav.reg_3EC);
1456         } else if (phy->gmode) {
1457                 b43_write16(dev, B43_MMIO_PHY_RADIO,
1458                             b43_read16(dev, B43_MMIO_PHY_RADIO)
1459                             & 0x7FFF);
1460                 b43_phy_write(dev, B43_PHY_RFOVER, sav.phy_rfover);
1461                 b43_phy_write(dev, B43_PHY_RFOVERVAL, sav.phy_rfoverval);
1462                 b43_phy_write(dev, B43_PHY_ANALOGOVER, sav.phy_analogover);
1463                 b43_phy_write(dev, B43_PHY_ANALOGOVERVAL,
1464                               sav.phy_analogoverval);
1465                 b43_phy_write(dev, B43_PHY_CRS0, sav.phy_crs0);
1466                 b43_phy_write(dev, B43_PHY_CLASSCTL, sav.phy_classctl);
1467                 if (has_loopback_gain(phy)) {
1468                         b43_phy_write(dev, B43_PHY_LO_MASK, sav.phy_lo_mask);
1469                         b43_phy_write(dev, B43_PHY_LO_CTL, sav.phy_lo_ctl);
1470                 }
1471         }
1472         if (i > 15)
1473                 ret = radio78;
1474         else
1475                 ret = rcc;
1476
1477         return ret;
1478 }
1479
1480 static void b43_phy_initb5(struct b43_wldev *dev)
1481 {
1482         struct b43_phy *phy = &dev->phy;
1483         struct b43_phy_g *gphy = phy->g;
1484         u16 offset, value;
1485         u8 old_channel;
1486
1487         if (phy->analog == 1) {
1488                 b43_radio_set(dev, 0x007A, 0x0050);
1489         }
1490         if ((dev->dev->board_vendor != SSB_BOARDVENDOR_BCM) &&
1491             (dev->dev->board_type != SSB_BOARD_BU4306)) {
1492                 value = 0x2120;
1493                 for (offset = 0x00A8; offset < 0x00C7; offset++) {
1494                         b43_phy_write(dev, offset, value);
1495                         value += 0x202;
1496                 }
1497         }
1498         b43_phy_maskset(dev, 0x0035, 0xF0FF, 0x0700);
1499         if (phy->radio_ver == 0x2050)
1500                 b43_phy_write(dev, 0x0038, 0x0667);
1501
1502         if (phy->gmode || phy->rev >= 2) {
1503                 if (phy->radio_ver == 0x2050) {
1504                         b43_radio_set(dev, 0x007A, 0x0020);
1505                         b43_radio_set(dev, 0x0051, 0x0004);
1506                 }
1507                 b43_write16(dev, B43_MMIO_PHY_RADIO, 0x0000);
1508
1509                 b43_phy_set(dev, 0x0802, 0x0100);
1510                 b43_phy_set(dev, 0x042B, 0x2000);
1511
1512                 b43_phy_write(dev, 0x001C, 0x186A);
1513
1514                 b43_phy_maskset(dev, 0x0013, 0x00FF, 0x1900);
1515                 b43_phy_maskset(dev, 0x0035, 0xFFC0, 0x0064);
1516                 b43_phy_maskset(dev, 0x005D, 0xFF80, 0x000A);
1517         }
1518
1519         if (dev->bad_frames_preempt) {
1520                 b43_phy_set(dev, B43_PHY_RADIO_BITFIELD, (1 << 11));
1521         }
1522
1523         if (phy->analog == 1) {
1524                 b43_phy_write(dev, 0x0026, 0xCE00);
1525                 b43_phy_write(dev, 0x0021, 0x3763);
1526                 b43_phy_write(dev, 0x0022, 0x1BC3);
1527                 b43_phy_write(dev, 0x0023, 0x06F9);
1528                 b43_phy_write(dev, 0x0024, 0x037E);
1529         } else
1530                 b43_phy_write(dev, 0x0026, 0xCC00);
1531         b43_phy_write(dev, 0x0030, 0x00C6);
1532         b43_write16(dev, 0x03EC, 0x3F22);
1533
1534         if (phy->analog == 1)
1535                 b43_phy_write(dev, 0x0020, 0x3E1C);
1536         else
1537                 b43_phy_write(dev, 0x0020, 0x301C);
1538
1539         if (phy->analog == 0)
1540                 b43_write16(dev, 0x03E4, 0x3000);
1541
1542         old_channel = phy->channel;
1543         /* Force to channel 7, even if not supported. */
1544         b43_gphy_channel_switch(dev, 7, 0);
1545
1546         if (phy->radio_ver != 0x2050) {
1547                 b43_radio_write16(dev, 0x0075, 0x0080);
1548                 b43_radio_write16(dev, 0x0079, 0x0081);
1549         }
1550
1551         b43_radio_write16(dev, 0x0050, 0x0020);
1552         b43_radio_write16(dev, 0x0050, 0x0023);
1553
1554         if (phy->radio_ver == 0x2050) {
1555                 b43_radio_write16(dev, 0x0050, 0x0020);
1556                 b43_radio_write16(dev, 0x005A, 0x0070);
1557         }
1558
1559         b43_radio_write16(dev, 0x005B, 0x007B);
1560         b43_radio_write16(dev, 0x005C, 0x00B0);
1561
1562         b43_radio_set(dev, 0x007A, 0x0007);
1563
1564         b43_gphy_channel_switch(dev, old_channel, 0);
1565
1566         b43_phy_write(dev, 0x0014, 0x0080);
1567         b43_phy_write(dev, 0x0032, 0x00CA);
1568         b43_phy_write(dev, 0x002A, 0x88A3);
1569
1570         b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt, gphy->tx_control);
1571
1572         if (phy->radio_ver == 0x2050)
1573                 b43_radio_write16(dev, 0x005D, 0x000D);
1574
1575         b43_write16(dev, 0x03E4, (b43_read16(dev, 0x03E4) & 0xFFC0) | 0x0004);
1576 }
1577
1578 /* http://bcm-v4.sipsolutions.net/802.11/PHY/Init/B6 */
1579 static void b43_phy_initb6(struct b43_wldev *dev)
1580 {
1581         struct b43_phy *phy = &dev->phy;
1582         struct b43_phy_g *gphy = phy->g;
1583         u16 offset, val;
1584         u8 old_channel;
1585
1586         b43_phy_write(dev, 0x003E, 0x817A);
1587         b43_radio_write16(dev, 0x007A,
1588                           (b43_radio_read16(dev, 0x007A) | 0x0058));
1589         if (phy->radio_rev == 4 || phy->radio_rev == 5) {
1590                 b43_radio_write16(dev, 0x51, 0x37);
1591                 b43_radio_write16(dev, 0x52, 0x70);
1592                 b43_radio_write16(dev, 0x53, 0xB3);
1593                 b43_radio_write16(dev, 0x54, 0x9B);
1594                 b43_radio_write16(dev, 0x5A, 0x88);
1595                 b43_radio_write16(dev, 0x5B, 0x88);
1596                 b43_radio_write16(dev, 0x5D, 0x88);
1597                 b43_radio_write16(dev, 0x5E, 0x88);
1598                 b43_radio_write16(dev, 0x7D, 0x88);
1599                 b43_hf_write(dev, b43_hf_read(dev)
1600                              | B43_HF_TSSIRPSMW);
1601         }
1602         B43_WARN_ON(phy->radio_rev == 6 || phy->radio_rev == 7);        /* We had code for these revs here... */
1603         if (phy->radio_rev == 8) {
1604                 b43_radio_write16(dev, 0x51, 0);
1605                 b43_radio_write16(dev, 0x52, 0x40);
1606                 b43_radio_write16(dev, 0x53, 0xB7);
1607                 b43_radio_write16(dev, 0x54, 0x98);
1608                 b43_radio_write16(dev, 0x5A, 0x88);
1609                 b43_radio_write16(dev, 0x5B, 0x6B);
1610                 b43_radio_write16(dev, 0x5C, 0x0F);
1611                 if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_ALTIQ) {
1612                         b43_radio_write16(dev, 0x5D, 0xFA);
1613                         b43_radio_write16(dev, 0x5E, 0xD8);
1614                 } else {
1615                         b43_radio_write16(dev, 0x5D, 0xF5);
1616                         b43_radio_write16(dev, 0x5E, 0xB8);
1617                 }
1618                 b43_radio_write16(dev, 0x0073, 0x0003);
1619                 b43_radio_write16(dev, 0x007D, 0x00A8);
1620                 b43_radio_write16(dev, 0x007C, 0x0001);
1621                 b43_radio_write16(dev, 0x007E, 0x0008);
1622         }
1623         val = 0x1E1F;
1624         for (offset = 0x0088; offset < 0x0098; offset++) {
1625                 b43_phy_write(dev, offset, val);
1626                 val -= 0x0202;
1627         }
1628         val = 0x3E3F;
1629         for (offset = 0x0098; offset < 0x00A8; offset++) {
1630                 b43_phy_write(dev, offset, val);
1631                 val -= 0x0202;
1632         }
1633         val = 0x2120;
1634         for (offset = 0x00A8; offset < 0x00C8; offset++) {
1635                 b43_phy_write(dev, offset, (val & 0x3F3F));
1636                 val += 0x0202;
1637         }
1638         if (phy->type == B43_PHYTYPE_G) {
1639                 b43_radio_set(dev, 0x007A, 0x0020);
1640                 b43_radio_set(dev, 0x0051, 0x0004);
1641                 b43_phy_set(dev, 0x0802, 0x0100);
1642                 b43_phy_set(dev, 0x042B, 0x2000);
1643                 b43_phy_write(dev, 0x5B, 0);
1644                 b43_phy_write(dev, 0x5C, 0);
1645         }
1646
1647         old_channel = phy->channel;
1648         if (old_channel >= 8)
1649                 b43_gphy_channel_switch(dev, 1, 0);
1650         else
1651                 b43_gphy_channel_switch(dev, 13, 0);
1652
1653         b43_radio_write16(dev, 0x0050, 0x0020);
1654         b43_radio_write16(dev, 0x0050, 0x0023);
1655         udelay(40);
1656         if (phy->radio_rev < 6 || phy->radio_rev == 8) {
1657                 b43_radio_write16(dev, 0x7C, (b43_radio_read16(dev, 0x7C)
1658                                               | 0x0002));
1659                 b43_radio_write16(dev, 0x50, 0x20);
1660         }
1661         if (phy->radio_rev <= 2) {
1662                 b43_radio_write16(dev, 0x50, 0x20);
1663                 b43_radio_write16(dev, 0x5A, 0x70);
1664                 b43_radio_write16(dev, 0x5B, 0x7B);
1665                 b43_radio_write16(dev, 0x5C, 0xB0);
1666         }
1667         b43_radio_maskset(dev, 0x007A, 0x00F8, 0x0007);
1668
1669         b43_gphy_channel_switch(dev, old_channel, 0);
1670
1671         b43_phy_write(dev, 0x0014, 0x0200);
1672         if (phy->radio_rev >= 6)
1673                 b43_phy_write(dev, 0x2A, 0x88C2);
1674         else
1675                 b43_phy_write(dev, 0x2A, 0x8AC0);
1676         b43_phy_write(dev, 0x0038, 0x0668);
1677         b43_set_txpower_g(dev, &gphy->bbatt, &gphy->rfatt, gphy->tx_control);
1678         if (phy->radio_rev == 4 || phy->radio_rev == 5)
1679                 b43_phy_maskset(dev, 0x5D, 0xFF80, 0x0003);
1680         if (phy->radio_rev <= 2)
1681                 b43_radio_write16(dev, 0x005D, 0x000D);
1682
1683         if (phy->analog == 4) {
1684                 b43_write16(dev, 0x3E4, 9);
1685                 b43_phy_mask(dev, 0x61, 0x0FFF);
1686         } else {
1687                 b43_phy_maskset(dev, 0x0002, 0xFFC0, 0x0004);
1688         }
1689         if (phy->type == B43_PHYTYPE_B)
1690                 B43_WARN_ON(1);
1691         else if (phy->type == B43_PHYTYPE_G)
1692                 b43_write16(dev, 0x03E6, 0x0);
1693 }
1694
1695 static void b43_calc_loopback_gain(struct b43_wldev *dev)
1696 {
1697         struct b43_phy *phy = &dev->phy;
1698         struct b43_phy_g *gphy = phy->g;
1699         u16 backup_phy[16] = { 0 };
1700         u16 backup_radio[3];
1701         u16 backup_bband;
1702         u16 i, j, loop_i_max;
1703         u16 trsw_rx;
1704         u16 loop1_outer_done, loop1_inner_done;
1705
1706         backup_phy[0] = b43_phy_read(dev, B43_PHY_CRS0);
1707         backup_phy[1] = b43_phy_read(dev, B43_PHY_CCKBBANDCFG);
1708         backup_phy[2] = b43_phy_read(dev, B43_PHY_RFOVER);
1709         backup_phy[3] = b43_phy_read(dev, B43_PHY_RFOVERVAL);
1710         if (phy->rev != 1) {    /* Not in specs, but needed to prevent PPC machine check */
1711                 backup_phy[4] = b43_phy_read(dev, B43_PHY_ANALOGOVER);
1712                 backup_phy[5] = b43_phy_read(dev, B43_PHY_ANALOGOVERVAL);
1713         }
1714         backup_phy[6] = b43_phy_read(dev, B43_PHY_CCK(0x5A));
1715         backup_phy[7] = b43_phy_read(dev, B43_PHY_CCK(0x59));
1716         backup_phy[8] = b43_phy_read(dev, B43_PHY_CCK(0x58));
1717         backup_phy[9] = b43_phy_read(dev, B43_PHY_CCK(0x0A));
1718         backup_phy[10] = b43_phy_read(dev, B43_PHY_CCK(0x03));
1719         backup_phy[11] = b43_phy_read(dev, B43_PHY_LO_MASK);
1720         backup_phy[12] = b43_phy_read(dev, B43_PHY_LO_CTL);
1721         backup_phy[13] = b43_phy_read(dev, B43_PHY_CCK(0x2B));
1722         backup_phy[14] = b43_phy_read(dev, B43_PHY_PGACTL);
1723         backup_phy[15] = b43_phy_read(dev, B43_PHY_LO_LEAKAGE);
1724         backup_bband = gphy->bbatt.att;
1725         backup_radio[0] = b43_radio_read16(dev, 0x52);
1726         backup_radio[1] = b43_radio_read16(dev, 0x43);
1727         backup_radio[2] = b43_radio_read16(dev, 0x7A);
1728
1729         b43_phy_mask(dev, B43_PHY_CRS0, 0x3FFF);
1730         b43_phy_set(dev, B43_PHY_CCKBBANDCFG, 0x8000);
1731         b43_phy_set(dev, B43_PHY_RFOVER, 0x0002);
1732         b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xFFFD);
1733         b43_phy_set(dev, B43_PHY_RFOVER, 0x0001);
1734         b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xFFFE);
1735         if (phy->rev != 1) {    /* Not in specs, but needed to prevent PPC machine check */
1736                 b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0001);
1737                 b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFE);
1738                 b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0002);
1739                 b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFD);
1740         }
1741         b43_phy_set(dev, B43_PHY_RFOVER, 0x000C);
1742         b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x000C);
1743         b43_phy_set(dev, B43_PHY_RFOVER, 0x0030);
1744         b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xFFCF, 0x10);
1745
1746         b43_phy_write(dev, B43_PHY_CCK(0x5A), 0x0780);
1747         b43_phy_write(dev, B43_PHY_CCK(0x59), 0xC810);
1748         b43_phy_write(dev, B43_PHY_CCK(0x58), 0x000D);
1749
1750         b43_phy_set(dev, B43_PHY_CCK(0x0A), 0x2000);
1751         if (phy->rev != 1) {    /* Not in specs, but needed to prevent PPC machine check */
1752                 b43_phy_set(dev, B43_PHY_ANALOGOVER, 0x0004);
1753                 b43_phy_mask(dev, B43_PHY_ANALOGOVERVAL, 0xFFFB);
1754         }
1755         b43_phy_maskset(dev, B43_PHY_CCK(0x03), 0xFF9F, 0x40);
1756
1757         if (phy->radio_rev == 8) {
1758                 b43_radio_write16(dev, 0x43, 0x000F);
1759         } else {
1760                 b43_radio_write16(dev, 0x52, 0);
1761                 b43_radio_maskset(dev, 0x43, 0xFFF0, 0x9);
1762         }
1763         b43_gphy_set_baseband_attenuation(dev, 11);
1764
1765         if (phy->rev >= 3)
1766                 b43_phy_write(dev, B43_PHY_LO_MASK, 0xC020);
1767         else
1768                 b43_phy_write(dev, B43_PHY_LO_MASK, 0x8020);
1769         b43_phy_write(dev, B43_PHY_LO_CTL, 0);
1770
1771         b43_phy_maskset(dev, B43_PHY_CCK(0x2B), 0xFFC0, 0x01);
1772         b43_phy_maskset(dev, B43_PHY_CCK(0x2B), 0xC0FF, 0x800);
1773
1774         b43_phy_set(dev, B43_PHY_RFOVER, 0x0100);
1775         b43_phy_mask(dev, B43_PHY_RFOVERVAL, 0xCFFF);
1776
1777         if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_EXTLNA) {
1778                 if (phy->rev >= 7) {
1779                         b43_phy_set(dev, B43_PHY_RFOVER, 0x0800);
1780                         b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x8000);
1781                 }
1782         }
1783         b43_radio_mask(dev, 0x7A, 0x00F7);
1784
1785         j = 0;
1786         loop_i_max = (phy->radio_rev == 8) ? 15 : 9;
1787         for (i = 0; i < loop_i_max; i++) {
1788                 for (j = 0; j < 16; j++) {
1789                         b43_radio_write16(dev, 0x43, i);
1790                         b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xF0FF, (j << 8));
1791                         b43_phy_maskset(dev, B43_PHY_PGACTL, 0x0FFF, 0xA000);
1792                         b43_phy_set(dev, B43_PHY_PGACTL, 0xF000);
1793                         udelay(20);
1794                         if (b43_phy_read(dev, B43_PHY_LO_LEAKAGE) >= 0xDFC)
1795                                 goto exit_loop1;
1796                 }
1797         }
1798       exit_loop1:
1799         loop1_outer_done = i;
1800         loop1_inner_done = j;
1801         if (j >= 8) {
1802                 b43_phy_set(dev, B43_PHY_RFOVERVAL, 0x30);
1803                 trsw_rx = 0x1B;
1804                 for (j = j - 8; j < 16; j++) {
1805                         b43_phy_maskset(dev, B43_PHY_RFOVERVAL, 0xF0FF, (j << 8));
1806                         b43_phy_maskset(dev, B43_PHY_PGACTL, 0x0FFF, 0xA000);
1807                         b43_phy_set(dev, B43_PHY_PGACTL, 0xF000);
1808                         udelay(20);
1809                         trsw_rx -= 3;
1810                         if (b43_phy_read(dev, B43_PHY_LO_LEAKAGE) >= 0xDFC)
1811                                 goto exit_loop2;
1812                 }
1813         } else
1814                 trsw_rx = 0x18;
1815       exit_loop2:
1816
1817         if (phy->rev != 1) {    /* Not in specs, but needed to prevent PPC machine check */
1818                 b43_phy_write(dev, B43_PHY_ANALOGOVER, backup_phy[4]);
1819                 b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, backup_phy[5]);
1820         }
1821         b43_phy_write(dev, B43_PHY_CCK(0x5A), backup_phy[6]);
1822         b43_phy_write(dev, B43_PHY_CCK(0x59), backup_phy[7]);
1823         b43_phy_write(dev, B43_PHY_CCK(0x58), backup_phy[8]);
1824         b43_phy_write(dev, B43_PHY_CCK(0x0A), backup_phy[9]);
1825         b43_phy_write(dev, B43_PHY_CCK(0x03), backup_phy[10]);
1826         b43_phy_write(dev, B43_PHY_LO_MASK, backup_phy[11]);
1827         b43_phy_write(dev, B43_PHY_LO_CTL, backup_phy[12]);
1828         b43_phy_write(dev, B43_PHY_CCK(0x2B), backup_phy[13]);
1829         b43_phy_write(dev, B43_PHY_PGACTL, backup_phy[14]);
1830
1831         b43_gphy_set_baseband_attenuation(dev, backup_bband);
1832
1833         b43_radio_write16(dev, 0x52, backup_radio[0]);
1834         b43_radio_write16(dev, 0x43, backup_radio[1]);
1835         b43_radio_write16(dev, 0x7A, backup_radio[2]);
1836
1837         b43_phy_write(dev, B43_PHY_RFOVER, backup_phy[2] | 0x0003);
1838         udelay(10);
1839         b43_phy_write(dev, B43_PHY_RFOVER, backup_phy[2]);
1840         b43_phy_write(dev, B43_PHY_RFOVERVAL, backup_phy[3]);
1841         b43_phy_write(dev, B43_PHY_CRS0, backup_phy[0]);
1842         b43_phy_write(dev, B43_PHY_CCKBBANDCFG, backup_phy[1]);
1843
1844         gphy->max_lb_gain =
1845             ((loop1_inner_done * 6) - (loop1_outer_done * 4)) - 11;
1846         gphy->trsw_rx_gain = trsw_rx * 2;
1847 }
1848
1849 static void b43_hardware_pctl_early_init(struct b43_wldev *dev)
1850 {
1851         struct b43_phy *phy = &dev->phy;
1852
1853         if (!b43_has_hardware_pctl(dev)) {
1854                 b43_phy_write(dev, 0x047A, 0xC111);
1855                 return;
1856         }
1857
1858         b43_phy_mask(dev, 0x0036, 0xFEFF);
1859         b43_phy_write(dev, 0x002F, 0x0202);
1860         b43_phy_set(dev, 0x047C, 0x0002);
1861         b43_phy_set(dev, 0x047A, 0xF000);
1862         if (phy->radio_ver == 0x2050 && phy->radio_rev == 8) {
1863                 b43_phy_maskset(dev, 0x047A, 0xFF0F, 0x0010);
1864                 b43_phy_set(dev, 0x005D, 0x8000);
1865                 b43_phy_maskset(dev, 0x004E, 0xFFC0, 0x0010);
1866                 b43_phy_write(dev, 0x002E, 0xC07F);
1867                 b43_phy_set(dev, 0x0036, 0x0400);
1868         } else {
1869                 b43_phy_set(dev, 0x0036, 0x0200);
1870                 b43_phy_set(dev, 0x0036, 0x0400);
1871                 b43_phy_mask(dev, 0x005D, 0x7FFF);
1872                 b43_phy_mask(dev, 0x004F, 0xFFFE);
1873                 b43_phy_maskset(dev, 0x004E, 0xFFC0, 0x0010);
1874                 b43_phy_write(dev, 0x002E, 0xC07F);
1875                 b43_phy_maskset(dev, 0x047A, 0xFF0F, 0x0010);
1876         }
1877 }
1878
1879 /* Hardware power control for G-PHY */
1880 static void b43_hardware_pctl_init_gphy(struct b43_wldev *dev)
1881 {
1882         struct b43_phy *phy = &dev->phy;
1883         struct b43_phy_g *gphy = phy->g;
1884
1885         if (!b43_has_hardware_pctl(dev)) {
1886                 /* No hardware power control */
1887                 b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_HWPCTL);
1888                 return;
1889         }
1890
1891         b43_phy_maskset(dev, 0x0036, 0xFFC0, (gphy->tgt_idle_tssi - gphy->cur_idle_tssi));
1892         b43_phy_maskset(dev, 0x0478, 0xFF00, (gphy->tgt_idle_tssi - gphy->cur_idle_tssi));
1893         b43_gphy_tssi_power_lt_init(dev);
1894         b43_gphy_gain_lt_init(dev);
1895         b43_phy_mask(dev, 0x0060, 0xFFBF);
1896         b43_phy_write(dev, 0x0014, 0x0000);
1897
1898         B43_WARN_ON(phy->rev < 6);
1899         b43_phy_set(dev, 0x0478, 0x0800);
1900         b43_phy_mask(dev, 0x0478, 0xFEFF);
1901         b43_phy_mask(dev, 0x0801, 0xFFBF);
1902
1903         b43_gphy_dc_lt_init(dev, 1);
1904
1905         /* Enable hardware pctl in firmware. */
1906         b43_hf_write(dev, b43_hf_read(dev) | B43_HF_HWPCTL);
1907 }
1908
1909 /* Initialize B/G PHY power control */
1910 static void b43_phy_init_pctl(struct b43_wldev *dev)
1911 {
1912         struct b43_phy *phy = &dev->phy;
1913         struct b43_phy_g *gphy = phy->g;
1914         struct b43_rfatt old_rfatt;
1915         struct b43_bbatt old_bbatt;
1916         u8 old_tx_control = 0;
1917
1918         B43_WARN_ON(phy->type != B43_PHYTYPE_G);
1919
1920         if ((dev->dev->board_vendor == SSB_BOARDVENDOR_BCM) &&
1921             (dev->dev->board_type == SSB_BOARD_BU4306))
1922                 return;
1923
1924         b43_phy_write(dev, 0x0028, 0x8018);
1925
1926         /* This does something with the Analog... */
1927         b43_write16(dev, B43_MMIO_PHY0, b43_read16(dev, B43_MMIO_PHY0)
1928                     & 0xFFDF);
1929
1930         if (!phy->gmode)
1931                 return;
1932         b43_hardware_pctl_early_init(dev);
1933         if (gphy->cur_idle_tssi == 0) {
1934                 if (phy->radio_ver == 0x2050 && phy->analog == 0) {
1935                         b43_radio_maskset(dev, 0x0076, 0x00F7, 0x0084);
1936                 } else {
1937                         struct b43_rfatt rfatt;
1938                         struct b43_bbatt bbatt;
1939
1940                         memcpy(&old_rfatt, &gphy->rfatt, sizeof(old_rfatt));
1941                         memcpy(&old_bbatt, &gphy->bbatt, sizeof(old_bbatt));
1942                         old_tx_control = gphy->tx_control;
1943
1944                         bbatt.att = 11;
1945                         if (phy->radio_rev == 8) {
1946                                 rfatt.att = 15;
1947                                 rfatt.with_padmix = true;
1948                         } else {
1949                                 rfatt.att = 9;
1950                                 rfatt.with_padmix = false;
1951                         }
1952                         b43_set_txpower_g(dev, &bbatt, &rfatt, 0);
1953                 }
1954                 b43_dummy_transmission(dev, false, true);
1955                 gphy->cur_idle_tssi = b43_phy_read(dev, B43_PHY_ITSSI);
1956                 if (B43_DEBUG) {
1957                         /* Current-Idle-TSSI sanity check. */
1958                         if (abs(gphy->cur_idle_tssi - gphy->tgt_idle_tssi) >= 20) {
1959                                 b43dbg(dev->wl,
1960                                        "!WARNING! Idle-TSSI phy->cur_idle_tssi "
1961                                        "measuring failed. (cur=%d, tgt=%d). Disabling TX power "
1962                                        "adjustment.\n", gphy->cur_idle_tssi,
1963                                        gphy->tgt_idle_tssi);
1964                                 gphy->cur_idle_tssi = 0;
1965                         }
1966                 }
1967                 if (phy->radio_ver == 0x2050 && phy->analog == 0) {
1968                         b43_radio_mask(dev, 0x0076, 0xFF7B);
1969                 } else {
1970                         b43_set_txpower_g(dev, &old_bbatt,
1971                                           &old_rfatt, old_tx_control);
1972                 }
1973         }
1974         b43_hardware_pctl_init_gphy(dev);
1975         b43_shm_clear_tssi(dev);
1976 }
1977
1978 static void b43_phy_inita(struct b43_wldev *dev)
1979 {
1980         struct b43_phy *phy = &dev->phy;
1981
1982         might_sleep();
1983
1984         if (phy->rev >= 6) {
1985                 if (b43_phy_read(dev, B43_PHY_ENCORE) & B43_PHY_ENCORE_EN)
1986                         b43_phy_set(dev, B43_PHY_ENCORE, 0x0010);
1987                 else
1988                         b43_phy_mask(dev, B43_PHY_ENCORE, ~0x1010);
1989         }
1990
1991         b43_wa_all(dev);
1992
1993         if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL)
1994                 b43_phy_maskset(dev, B43_PHY_OFDM(0x6E), 0xE000, 0x3CF);
1995 }
1996
1997 static void b43_phy_initg(struct b43_wldev *dev)
1998 {
1999         struct b43_phy *phy = &dev->phy;
2000         struct b43_phy_g *gphy = phy->g;
2001         u16 tmp;
2002
2003         if (phy->rev == 1)
2004                 b43_phy_initb5(dev);
2005         else
2006                 b43_phy_initb6(dev);
2007
2008         if (phy->rev >= 2 || phy->gmode)
2009                 b43_phy_inita(dev);
2010
2011         if (phy->rev >= 2) {
2012                 b43_phy_write(dev, B43_PHY_ANALOGOVER, 0);
2013                 b43_phy_write(dev, B43_PHY_ANALOGOVERVAL, 0);
2014         }
2015         if (phy->rev == 2) {
2016                 b43_phy_write(dev, B43_PHY_RFOVER, 0);
2017                 b43_phy_write(dev, B43_PHY_PGACTL, 0xC0);
2018         }
2019         if (phy->rev > 5) {
2020                 b43_phy_write(dev, B43_PHY_RFOVER, 0x400);
2021                 b43_phy_write(dev, B43_PHY_PGACTL, 0xC0);
2022         }
2023         if (phy->gmode || phy->rev >= 2) {
2024                 tmp = b43_phy_read(dev, B43_PHY_VERSION_OFDM);
2025                 tmp &= B43_PHYVER_VERSION;
2026                 if (tmp == 3 || tmp == 5) {
2027                         b43_phy_write(dev, B43_PHY_OFDM(0xC2), 0x1816);
2028                         b43_phy_write(dev, B43_PHY_OFDM(0xC3), 0x8006);
2029                 }
2030                 if (tmp == 5) {
2031                         b43_phy_maskset(dev, B43_PHY_OFDM(0xCC), 0x00FF, 0x1F00);
2032                 }
2033         }
2034         if ((phy->rev <= 2 && phy->gmode) || phy->rev >= 2)
2035                 b43_phy_write(dev, B43_PHY_OFDM(0x7E), 0x78);
2036         if (phy->radio_rev == 8) {
2037                 b43_phy_set(dev, B43_PHY_EXTG(0x01), 0x80);
2038                 b43_phy_set(dev, B43_PHY_OFDM(0x3E), 0x4);
2039         }
2040         if (has_loopback_gain(phy))
2041                 b43_calc_loopback_gain(dev);
2042
2043         if (phy->radio_rev != 8) {
2044                 if (gphy->initval == 0xFFFF)
2045                         gphy->initval = b43_radio_init2050(dev);
2046                 else
2047                         b43_radio_write16(dev, 0x0078, gphy->initval);
2048         }
2049         b43_lo_g_init(dev);
2050         if (has_tx_magnification(phy)) {
2051                 b43_radio_write16(dev, 0x52,
2052                                   (b43_radio_read16(dev, 0x52) & 0xFF00)
2053                                   | gphy->lo_control->tx_bias | gphy->
2054                                   lo_control->tx_magn);
2055         } else {
2056                 b43_radio_maskset(dev, 0x52, 0xFFF0, gphy->lo_control->tx_bias);
2057         }
2058         if (phy->rev >= 6) {
2059                 b43_phy_maskset(dev, B43_PHY_CCK(0x36), 0x0FFF, (gphy->lo_control->tx_bias << 12));
2060         }
2061         if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_PACTRL)
2062                 b43_phy_write(dev, B43_PHY_CCK(0x2E), 0x8075);
2063         else
2064                 b43_phy_write(dev, B43_PHY_CCK(0x2E), 0x807F);
2065         if (phy->rev < 2)
2066                 b43_phy_write(dev, B43_PHY_CCK(0x2F), 0x101);
2067         else
2068                 b43_phy_write(dev, B43_PHY_CCK(0x2F), 0x202);
2069         if (phy->gmode || phy->rev >= 2) {
2070                 b43_lo_g_adjust(dev);
2071                 b43_phy_write(dev, B43_PHY_LO_MASK, 0x8078);
2072         }
2073
2074         if (!(dev->dev->bus_sprom->boardflags_lo & B43_BFL_RSSI)) {
2075                 /* The specs state to update the NRSSI LT with
2076                  * the value 0x7FFFFFFF here. I think that is some weird
2077                  * compiler optimization in the original driver.
2078                  * Essentially, what we do here is resetting all NRSSI LT
2079                  * entries to -32 (see the clamp_val() in nrssi_hw_update())
2080                  */
2081                 b43_nrssi_hw_update(dev, 0xFFFF);       //FIXME?
2082                 b43_calc_nrssi_threshold(dev);
2083         } else if (phy->gmode || phy->rev >= 2) {
2084                 if (gphy->nrssi[0] == -1000) {
2085                         B43_WARN_ON(gphy->nrssi[1] != -1000);
2086                         b43_calc_nrssi_slope(dev);
2087                 } else
2088                         b43_calc_nrssi_threshold(dev);
2089         }
2090         if (phy->radio_rev == 8)
2091                 b43_phy_write(dev, B43_PHY_EXTG(0x05), 0x3230);
2092         b43_phy_init_pctl(dev);
2093         /* FIXME: The spec says in the following if, the 0 should be replaced
2094            'if OFDM may not be used in the current locale'
2095            but OFDM is legal everywhere */
2096         if ((dev->dev->chip_id == 0x4306
2097              && dev->dev->chip_pkg == 2) || 0) {
2098                 b43_phy_mask(dev, B43_PHY_CRS0, 0xBFFF);
2099                 b43_phy_mask(dev, B43_PHY_OFDM(0xC3), 0x7FFF);
2100         }
2101 }
2102
2103 void b43_gphy_channel_switch(struct b43_wldev *dev,
2104                              unsigned int channel,
2105                              bool synthetic_pu_workaround)
2106 {
2107         if (synthetic_pu_workaround)
2108                 b43_synth_pu_workaround(dev, channel);
2109
2110         b43_write16(dev, B43_MMIO_CHANNEL, channel2freq_bg(channel));
2111
2112         if (channel == 14) {
2113                 if (dev->dev->bus_sprom->country_code ==
2114                     SSB_SPROM1CCODE_JAPAN)
2115                         b43_hf_write(dev,
2116                                      b43_hf_read(dev) & ~B43_HF_ACPR);
2117                 else
2118                         b43_hf_write(dev,
2119                                      b43_hf_read(dev) | B43_HF_ACPR);
2120                 b43_write16(dev, B43_MMIO_CHANNEL_EXT,
2121                             b43_read16(dev, B43_MMIO_CHANNEL_EXT)
2122                             | (1 << 11));
2123         } else {
2124                 b43_write16(dev, B43_MMIO_CHANNEL_EXT,
2125                             b43_read16(dev, B43_MMIO_CHANNEL_EXT)
2126                             & 0xF7BF);
2127         }
2128 }
2129
2130 static void default_baseband_attenuation(struct b43_wldev *dev,
2131                                          struct b43_bbatt *bb)
2132 {
2133         struct b43_phy *phy = &dev->phy;
2134
2135         if (phy->radio_ver == 0x2050 && phy->radio_rev < 6)
2136                 bb->att = 0;
2137         else
2138                 bb->att = 2;
2139 }
2140
2141 static void default_radio_attenuation(struct b43_wldev *dev,
2142                                       struct b43_rfatt *rf)
2143 {
2144         struct b43_bus_dev *bdev = dev->dev;
2145         struct b43_phy *phy = &dev->phy;
2146
2147         rf->with_padmix = false;
2148
2149         if (dev->dev->board_vendor == SSB_BOARDVENDOR_BCM &&
2150             dev->dev->board_type == SSB_BOARD_BCM4309G) {
2151                 if (dev->dev->board_rev < 0x43) {
2152                         rf->att = 2;
2153                         return;
2154                 } else if (dev->dev->board_rev < 0x51) {
2155                         rf->att = 3;
2156                         return;
2157                 }
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 (bdev->board_vendor == SSB_BOARDVENDOR_BCM
2176                                     && bdev->board_type == SSB_BOARD_BCM4309G
2177                                     && bdev->board_rev >= 30)
2178                                         rf->att = 3;
2179                                 else if (bdev->board_vendor ==
2180                                          SSB_BOARDVENDOR_BCM
2181                                          && bdev->board_type ==
2182                                          SSB_BOARD_BU4306)
2183                                         rf->att = 3;
2184                                 else
2185                                         rf->att = 1;
2186                         } else {
2187                                 if (bdev->board_vendor == SSB_BOARDVENDOR_BCM
2188                                     && bdev->board_type == SSB_BOARD_BCM4309G
2189                                     && bdev->board_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 (bdev->board_vendor == SSB_BOARDVENDOR_BCM
2198                                     && bdev->board_type == SSB_BOARD_BCM4309G
2199                                     && bdev->board_rev >= 30)
2200                                         rf->att = 3;
2201                                 else if (bdev->board_vendor ==
2202                                          SSB_BOARDVENDOR_BCM
2203                                          && bdev->board_type ==
2204                                          SSB_BOARD_BU4306)
2205                                         rf->att = 5;
2206                                 else if (bdev->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 = true;
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] = { 0 };
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->chip_id == 0x4301) &&
2392                     (phy->radio_ver != 0x2050)); /* Not supported anymore */
2393
2394         gphy->dyn_tssi_tbl = false;
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 = true;
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 = false;
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 = false;
2537                 b43_wireless_core_reset(dev, 0);
2538                 b43_phy_initg(dev);
2539                 phy->gmode = true;
2540                 b43_wireless_core_reset(dev, 1);
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_write16f(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_write16f(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_write16f(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_write16f(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 = false;
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 = true;
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 = false;
2717         switch (mode) {
2718         case B43_INTERFMODE_AUTOWLAN:
2719                 gphy->aci_wlan_automatic = true;
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 = false;
2741                 gphy->aci_hw_rssi = false;
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_maintenance_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 };