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

   1 /*
   2
   3   Broadcom B43 wireless driver
   4
   5   PHY workarounds.
   6
   7   Copyright (c) 2005-2007 Stefano Brivio <stefano.brivio@polimi.it>
   8   Copyright (c) 2005-2007 Michael Buesch <m@bues.ch>
   9
  10   This program is free software; you can redistribute it and/or modify
  11   it under the terms of the GNU General Public License as published by
  12   the Free Software Foundation; either version 2 of the License, or
  13   (at your option) any later version.
  14
  15   This program is distributed in the hope that it will be useful,
  16   but WITHOUT ANY WARRANTY; without even the implied warranty of
  17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18   GNU General Public License for more details.
  19
  20   You should have received a copy of the GNU General Public License
  21   along with this program; see the file COPYING.  If not, write to
  22   the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
  23   Boston, MA 02110-1301, USA.
  24
  25 */
  26
  27 #include "b43.h"
  28 #include "main.h"
  29 #include "tables.h"
  30 #include "phy_common.h"
  31 #include "wa.h"
  32
  33 void b43_wa_initgains(struct b43_wldev *dev)
  34 {
  35         struct b43_phy *phy = &dev->phy;
  36
  37         b43_phy_write(dev, B43_PHY_LNAHPFCTL, 0x1FF9);
  38         b43_phy_mask(dev, B43_PHY_LPFGAINCTL, 0xFF0F);
  39         if (phy->rev <= 2)
  40                 b43_ofdmtab_write16(dev, B43_OFDMTAB_LPFGAIN, 0, 0x1FBF);
  41         b43_radio_write16(dev, 0x0002, 0x1FBF);
  42
  43         b43_phy_write(dev, 0x0024, 0x4680);
  44         b43_phy_write(dev, 0x0020, 0x0003);
  45         b43_phy_write(dev, 0x001D, 0x0F40);
  46         b43_phy_write(dev, 0x001F, 0x1C00);
  47         if (phy->rev <= 3)
  48                 b43_phy_maskset(dev, 0x002A, 0x00FF, 0x0400);
  49         else if (phy->rev == 5) {
  50                 b43_phy_maskset(dev, 0x002A, 0x00FF, 0x1A00);
  51                 b43_phy_write(dev, 0x00CC, 0x2121);
  52         }
  53         if (phy->rev >= 3)
  54                 b43_phy_write(dev, 0x00BA, 0x3ED5);
  55 }
  56
  57 static void b43_wa_rssi_lt(struct b43_wldev *dev) /* RSSI lookup table */
  58 {
  59         int i;
  60
  61         if (0 /* FIXME: For APHY.rev=2 this might be needed */) {
  62                 for (i = 0; i < 8; i++)
  63                         b43_ofdmtab_write16(dev, B43_OFDMTAB_RSSI, i, i + 8);
  64                 for (i = 8; i < 16; i++)
  65                         b43_ofdmtab_write16(dev, B43_OFDMTAB_RSSI, i, i - 8);
  66         } else {
  67                 for (i = 0; i < 64; i++)
  68                         b43_ofdmtab_write16(dev, B43_OFDMTAB_RSSI, i, i);
  69         }
  70 }
  71
  72 static void b43_wa_analog(struct b43_wldev *dev)
  73 {
  74         u16 ofdmrev;
  75
  76         ofdmrev = b43_phy_read(dev, B43_PHY_VERSION_OFDM) & B43_PHYVER_VERSION;
  77         if (ofdmrev > 2) {
  78                 b43_phy_write(dev, B43_PHY_PWRDOWN, 0x1000);
  79         } else {
  80                 b43_ofdmtab_write16(dev, B43_OFDMTAB_DAC, 3, 0x1044);
  81                 b43_ofdmtab_write16(dev, B43_OFDMTAB_DAC, 4, 0x7201);
  82                 b43_ofdmtab_write16(dev, B43_OFDMTAB_DAC, 6, 0x0040);
  83         }
  84 }
  85
  86 static void b43_wa_fft(struct b43_wldev *dev) /* Fine frequency table */
  87 {
  88         int i;
  89
  90         for (i = 0; i < B43_TAB_FINEFREQG_SIZE; i++)
  91                 b43_ofdmtab_write16(dev, B43_OFDMTAB_DACRFPABB, i,
  92                                     b43_tab_finefreqg[i]);
  93 }
  94
  95 static void b43_wa_nft(struct b43_wldev *dev) /* Noise figure table */
  96 {
  97         struct b43_phy *phy = &dev->phy;
  98         int i;
  99
 100         if (phy->rev == 1)
 101                 for (i = 0; i < B43_TAB_NOISEG1_SIZE; i++)
 102                         b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC2, i,
 103                                             b43_tab_noiseg1[i]);
 104         else
 105                 for (i = 0; i < B43_TAB_NOISEG2_SIZE; i++)
 106                         b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC2, i,
 107                                             b43_tab_noiseg2[i]);
 108 }
 109
 110 static void b43_wa_rt(struct b43_wldev *dev) /* Rotor table */
 111 {
 112         int i;
 113
 114         for (i = 0; i < B43_TAB_ROTOR_SIZE; i++)
 115                 b43_ofdmtab_write32(dev, B43_OFDMTAB_ROTOR, i, b43_tab_rotor[i]);
 116 }
 117
 118 static void b43_write_nst(struct b43_wldev *dev, const u16 *nst)
 119 {
 120         int i;
 121
 122         for (i = 0; i < B43_TAB_NOISESCALE_SIZE; i++)
 123                 b43_ofdmtab_write16(dev, B43_OFDMTAB_NOISESCALE, i, nst[i]);
 124 }
 125
 126 static void b43_wa_nst(struct b43_wldev *dev) /* Noise scale table */
 127 {
 128         struct b43_phy *phy = &dev->phy;
 129
 130         if (phy->rev >= 6) {
 131                 if (b43_phy_read(dev, B43_PHY_ENCORE) & B43_PHY_ENCORE_EN)
 132                         b43_write_nst(dev, b43_tab_noisescaleg3);
 133                 else
 134                         b43_write_nst(dev, b43_tab_noisescaleg2);
 135         } else {
 136                 b43_write_nst(dev, b43_tab_noisescaleg1);
 137         }
 138 }
 139
 140 static void b43_wa_art(struct b43_wldev *dev) /* ADV retard table */
 141 {
 142         int i;
 143
 144         for (i = 0; i < B43_TAB_RETARD_SIZE; i++)
 145                         b43_ofdmtab_write32(dev, B43_OFDMTAB_ADVRETARD,
 146                                 i, b43_tab_retard[i]);
 147 }
 148
 149 static void b43_wa_msst(struct b43_wldev *dev) /* Min sigma square table */
 150 {
 151         struct b43_phy *phy = &dev->phy;
 152         int i;
 153         const u16 *tab;
 154
 155         if (phy->type == B43_PHYTYPE_G) {
 156                 tab = b43_tab_sigmasqr2;
 157         } else {
 158                 B43_WARN_ON(1);
 159                 return;
 160         }
 161
 162         for (i = 0; i < B43_TAB_SIGMASQR_SIZE; i++) {
 163                 b43_ofdmtab_write16(dev, B43_OFDMTAB_MINSIGSQ,
 164                                         i, tab[i]);
 165         }
 166 }
 167
 168 static void b43_wa_crs_ed(struct b43_wldev *dev)
 169 {
 170         struct b43_phy *phy = &dev->phy;
 171
 172         if (phy->rev == 1) {
 173                 b43_phy_write(dev, B43_PHY_CRSTHRES1_R1, 0x4F19);
 174         } else if (phy->rev == 2) {
 175                 b43_phy_write(dev, B43_PHY_CRSTHRES1, 0x1861);
 176                 b43_phy_write(dev, B43_PHY_CRSTHRES2, 0x0271);
 177                 b43_phy_set(dev, B43_PHY_ANTDWELL, 0x0800);
 178         } else {
 179                 b43_phy_write(dev, B43_PHY_CRSTHRES1, 0x0098);
 180                 b43_phy_write(dev, B43_PHY_CRSTHRES2, 0x0070);
 181                 b43_phy_write(dev, B43_PHY_OFDM(0xC9), 0x0080);
 182                 b43_phy_set(dev, B43_PHY_ANTDWELL, 0x0800);
 183         }
 184 }
 185
 186 static void b43_wa_crs_thr(struct b43_wldev *dev)
 187 {
 188         b43_phy_maskset(dev, B43_PHY_CRS0, ~0x03C0, 0xD000);
 189 }
 190
 191 static void b43_wa_crs_blank(struct b43_wldev *dev)
 192 {
 193         b43_phy_write(dev, B43_PHY_OFDM(0x2C), 0x005A);
 194 }
 195
 196 static void b43_wa_cck_shiftbits(struct b43_wldev *dev)
 197 {
 198         b43_phy_write(dev, B43_PHY_CCKSHIFTBITS, 0x0026);
 199 }
 200
 201 static void b43_wa_wrssi_offset(struct b43_wldev *dev)
 202 {
 203         int i;
 204
 205         if (dev->phy.rev == 1) {
 206                 for (i = 0; i < 16; i++) {
 207                         b43_ofdmtab_write16(dev, B43_OFDMTAB_WRSSI_R1,
 208                                                 i, 0x0020);
 209                 }
 210         } else {
 211                 for (i = 0; i < 32; i++) {
 212                         b43_ofdmtab_write16(dev, B43_OFDMTAB_WRSSI,
 213                                                 i, 0x0820);
 214                 }
 215         }
 216 }
 217
 218 static void b43_wa_txpuoff_rxpuon(struct b43_wldev *dev)
 219 {
 220         b43_ofdmtab_write16(dev, B43_OFDMTAB_UNKNOWN_0F, 2, 15);
 221         b43_ofdmtab_write16(dev, B43_OFDMTAB_UNKNOWN_0F, 3, 20);
 222 }
 223
 224 static void b43_wa_altagc(struct b43_wldev *dev)
 225 {
 226         struct b43_phy *phy = &dev->phy;
 227
 228         if (phy->rev == 1) {
 229                 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC1_R1, 0, 254);
 230                 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC1_R1, 1, 13);
 231                 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC1_R1, 2, 19);
 232                 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC1_R1, 3, 25);
 233                 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC2, 0, 0x2710);
 234                 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC2, 1, 0x9B83);
 235                 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC2, 2, 0x9B83);
 236                 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC2, 3, 0x0F8D);
 237                 b43_phy_write(dev, B43_PHY_LMS, 4);
 238         } else {
 239                 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC1, 0, 254);
 240                 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC1, 1, 13);
 241                 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC1, 2, 19);
 242                 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC1, 3, 25);
 243         }
 244
 245         b43_phy_maskset(dev, B43_PHY_CCKSHIFTBITS_WA, 0x00FF, 0x5700);
 246         b43_phy_maskset(dev, B43_PHY_OFDM(0x1A), ~0x007F, 0x000F);
 247         b43_phy_maskset(dev, B43_PHY_OFDM(0x1A), ~0x3F80, 0x2B80);
 248         b43_phy_maskset(dev, B43_PHY_ANTWRSETT, 0xF0FF, 0x0300);
 249         b43_radio_set(dev, 0x7A, 0x0008);
 250         b43_phy_maskset(dev, B43_PHY_N1P1GAIN, ~0x000F, 0x0008);
 251         b43_phy_maskset(dev, B43_PHY_P1P2GAIN, ~0x0F00, 0x0600);
 252         b43_phy_maskset(dev, B43_PHY_N1N2GAIN, ~0x0F00, 0x0700);
 253         b43_phy_maskset(dev, B43_PHY_N1P1GAIN, ~0x0F00, 0x0100);
 254         if (phy->rev == 1) {
 255                 b43_phy_maskset(dev, B43_PHY_N1N2GAIN, ~0x000F, 0x0007);
 256         }
 257         b43_phy_maskset(dev, B43_PHY_OFDM(0x88), ~0x00FF, 0x001C);
 258         b43_phy_maskset(dev, B43_PHY_OFDM(0x88), ~0x3F00, 0x0200);
 259         b43_phy_maskset(dev, B43_PHY_OFDM(0x96), ~0x00FF, 0x001C);
 260         b43_phy_maskset(dev, B43_PHY_OFDM(0x89), ~0x00FF, 0x0020);
 261         b43_phy_maskset(dev, B43_PHY_OFDM(0x89), ~0x3F00, 0x0200);
 262         b43_phy_maskset(dev, B43_PHY_OFDM(0x82), ~0x00FF, 0x002E);
 263         b43_phy_maskset(dev, B43_PHY_OFDM(0x96), 0x00FF, 0x1A00);
 264         b43_phy_maskset(dev, B43_PHY_OFDM(0x81), ~0x00FF, 0x0028);
 265         b43_phy_maskset(dev, B43_PHY_OFDM(0x81), 0x00FF, 0x2C00);
 266         if (phy->rev == 1) {
 267                 b43_phy_write(dev, B43_PHY_PEAK_COUNT, 0x092B);
 268                 b43_phy_maskset(dev, B43_PHY_OFDM(0x1B), ~0x001E, 0x0002);
 269         } else {
 270                 b43_phy_mask(dev, B43_PHY_OFDM(0x1B), ~0x001E);
 271                 b43_phy_write(dev, B43_PHY_OFDM(0x1F), 0x287A);
 272                 b43_phy_maskset(dev, B43_PHY_LPFGAINCTL, ~0x000F, 0x0004);
 273                 if (phy->rev >= 6) {
 274                         b43_phy_write(dev, B43_PHY_OFDM(0x22), 0x287A);
 275                         b43_phy_maskset(dev, B43_PHY_LPFGAINCTL, 0x0FFF, 0x3000);
 276                 }
 277         }
 278         b43_phy_maskset(dev, B43_PHY_DIVSRCHIDX, 0x8080, 0x7874);
 279         b43_phy_write(dev, B43_PHY_OFDM(0x8E), 0x1C00);
 280         if (phy->rev == 1) {
 281                 b43_phy_maskset(dev, B43_PHY_DIVP1P2GAIN, ~0x0F00, 0x0600);
 282                 b43_phy_write(dev, B43_PHY_OFDM(0x8B), 0x005E);
 283                 b43_phy_maskset(dev, B43_PHY_ANTWRSETT, ~0x00FF, 0x001E);
 284                 b43_phy_write(dev, B43_PHY_OFDM(0x8D), 0x0002);
 285                 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC3_R1, 0, 0);
 286                 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC3_R1, 1, 7);
 287                 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC3_R1, 2, 16);
 288                 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC3_R1, 3, 28);
 289         } else {
 290                 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC3, 0, 0);
 291                 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC3, 1, 7);
 292                 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC3, 2, 16);
 293                 b43_ofdmtab_write16(dev, B43_OFDMTAB_AGC3, 3, 28);
 294         }
 295         if (phy->rev >= 6) {
 296                 b43_phy_mask(dev, B43_PHY_OFDM(0x26), ~0x0003);
 297                 b43_phy_mask(dev, B43_PHY_OFDM(0x26), ~0x1000);
 298         }
 299         b43_phy_read(dev, B43_PHY_VERSION_OFDM); /* Dummy read */
 300 }
 301
 302 static void b43_wa_tr_ltov(struct b43_wldev *dev) /* TR Lookup Table Original Values */
 303 {
 304         b43_gtab_write(dev, B43_GTAB_ORIGTR, 0, 0x7654);
 305 }
 306
 307 static void b43_wa_cpll_nonpilot(struct b43_wldev *dev)
 308 {
 309         b43_ofdmtab_write16(dev, B43_OFDMTAB_UNKNOWN_11, 0, 0);
 310         b43_ofdmtab_write16(dev, B43_OFDMTAB_UNKNOWN_11, 1, 0);
 311 }
 312
 313 static void b43_wa_boards_g(struct b43_wldev *dev)
 314 {
 315         struct ssb_sprom *sprom = dev->dev->bus_sprom;
 316         struct b43_phy *phy = &dev->phy;
 317
 318         if (dev->dev->board_vendor != SSB_BOARDVENDOR_BCM ||
 319             dev->dev->board_type != SSB_BOARD_BU4306 ||
 320             dev->dev->board_rev != 0x17) {
 321                 if (phy->rev < 2) {
 322                         b43_ofdmtab_write16(dev, B43_OFDMTAB_GAINX_R1, 1, 0x0002);
 323                         b43_ofdmtab_write16(dev, B43_OFDMTAB_GAINX_R1, 2, 0x0001);
 324                 } else {
 325                         b43_ofdmtab_write16(dev, B43_OFDMTAB_GAINX, 1, 0x0002);
 326                         b43_ofdmtab_write16(dev, B43_OFDMTAB_GAINX, 2, 0x0001);
 327                         if ((sprom->boardflags_lo & B43_BFL_EXTLNA) &&
 328                             (phy->rev >= 7)) {
 329                                 b43_phy_mask(dev, B43_PHY_EXTG(0x11), 0xF7FF);
 330                                 b43_ofdmtab_write16(dev, B43_OFDMTAB_GAINX, 0x0020, 0x0001);
 331                                 b43_ofdmtab_write16(dev, B43_OFDMTAB_GAINX, 0x0021, 0x0001);
 332                                 b43_ofdmtab_write16(dev, B43_OFDMTAB_GAINX, 0x0022, 0x0001);
 333                                 b43_ofdmtab_write16(dev, B43_OFDMTAB_GAINX, 0x0023, 0x0000);
 334                                 b43_ofdmtab_write16(dev, B43_OFDMTAB_GAINX, 0x0000, 0x0000);
 335                                 b43_ofdmtab_write16(dev, B43_OFDMTAB_GAINX, 0x0003, 0x0002);
 336                         }
 337                 }
 338         }
 339         if (sprom->boardflags_lo & B43_BFL_FEM) {
 340                 b43_phy_write(dev, B43_PHY_GTABCTL, 0x3120);
 341                 b43_phy_write(dev, B43_PHY_GTABDATA, 0xC480);
 342         }
 343 }
 344
 345 void b43_wa_all(struct b43_wldev *dev)
 346 {
 347         struct b43_phy *phy = &dev->phy;
 348
 349         if (phy->type == B43_PHYTYPE_G) {
 350                 switch (phy->rev) {
 351                 case 1://XXX review rev1
 352                         b43_wa_crs_ed(dev);
 353                         b43_wa_crs_thr(dev);
 354                         b43_wa_crs_blank(dev);
 355                         b43_wa_cck_shiftbits(dev);
 356                         b43_wa_fft(dev);
 357                         b43_wa_nft(dev);
 358                         b43_wa_rt(dev);
 359                         b43_wa_nst(dev);
 360                         b43_wa_art(dev);
 361                         b43_wa_wrssi_offset(dev);
 362                         b43_wa_altagc(dev);
 363                         break;
 364                 case 2:
 365                 case 6:
 366                 case 7:
 367                 case 8:
 368                 case 9:
 369                         b43_wa_tr_ltov(dev);
 370                         b43_wa_crs_ed(dev);
 371                         b43_wa_rssi_lt(dev);
 372                         b43_wa_nft(dev);
 373                         b43_wa_nst(dev);
 374                         b43_wa_msst(dev);
 375                         b43_wa_wrssi_offset(dev);
 376                         b43_wa_altagc(dev);
 377                         b43_wa_analog(dev);
 378                         b43_wa_txpuoff_rxpuon(dev);
 379                         break;
 380                 default:
 381                         B43_WARN_ON(1);
 382                 }
 383                 b43_wa_boards_g(dev);
 384         } else { /* No N PHY support so far, LP PHY is in phy_lp.c */
 385                 B43_WARN_ON(1);
 386         }
 387
 388         b43_wa_cpll_nonpilot(dev);
 389 }