drivers/net/wireless/broadcom/b43/phy

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
b43_radio_2064_channel_setup
b43_radio_2064_init
b43_phy_lcn_afe_set_unset
b43_phy_lcn_get_pa_gain
b43_phy_lcn_set_dac_gain
b43_phy_lcn_set_bbmult
b43_phy_lcn_clear_tx_power_offsets
b43_phy_lcn_rev0_baseband_init
b43_phy_lcn_bu_tweaks
b43_phy_lcn_sense_setup
b43_phy_lcn_load_tx_iir_cck_filter
b43_phy_lcn_load_tx_iir_ofdm_filter
b43_phy_lcn_set_tx_gain_override
b43_phy_lcn_set_tx_gain
b43_phy_lcn_tx_pwr_ctl_init
b43_phy_lcn_txrx_spur_avoidance_mode
b43_phy_lcn_set_channel_tweaks
b43_phy_lcn_set_channel
b43_phy_lcn_op_allocate
b43_phy_lcn_op_free
b43_phy_lcn_op_prepare_structs
b43_phy_lcn_op_init
b43_phy_lcn_op_software_rfkill
b43_phy_lcn_op_switch_analog
b43_phy_lcn_op_switch_channel
b43_phy_lcn_op_get_default_chan
b43_phy_lcn_op_recalc_txpower
b43_phy_lcn_op_adjust_txpower
b43_phy_lcn_op_maskset
b43_phy_lcn_op_radio_read
b43_phy_lcn_op_radio_write
   1 /*
   2 
   3   Broadcom B43 wireless driver
   4   IEEE 802.11n LCN-PHY support
   5 
   6   Copyright (c) 2011 Rafał Miłecki <zajec5@gmail.com>
   7 
   8   This program is free software; you can redistribute it and/or modify
   9   it under the terms of the GNU General Public License as published by
  10   the Free Software Foundation; either version 2 of the License, or
  11   (at your option) any later version.
  12 
  13   This program is distributed in the hope that it will be useful,
  14   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16   GNU General Public License for more details.
  17 
  18   You should have received a copy of the GNU General Public License
  19   along with this program; see the file COPYING.  If not, write to
  20   the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
  21   Boston, MA 02110-1301, USA.
  22 
  23   This file incorporates work covered by the following copyright and
  24   permission notice:
  25 
  26       Copyright (c) 2010 Broadcom Corporation
  27 
  28       Permission to use, copy, modify, and/or distribute this software for any
  29       purpose with or without fee is hereby granted, provided that the above
  30       copyright notice and this permission notice appear in all copies.
  31 */
  32 
  33 #include <linux/slab.h>
  34 
  35 #include "b43.h"
  36 #include "phy_lcn.h"
  37 #include "tables_phy_lcn.h"
  38 #include "main.h"
  39 
  40 struct lcn_tx_gains {
  41         u16 gm_gain;
  42         u16 pga_gain;
  43         u16 pad_gain;
  44         u16 dac_gain;
  45 };
  46 
  47 struct lcn_tx_iir_filter {
  48         u8 type;
  49         u16 values[16];
  50 };
  51 
  52 enum lcn_sense_type {
  53         B43_SENSE_TEMP,
  54         B43_SENSE_VBAT,
  55 };
  56 
  57 /**************************************************
  58  * Radio 2064.
  59  **************************************************/
  60 
  61 /* wlc_lcnphy_radio_2064_channel_tune_4313 */
  62 static void b43_radio_2064_channel_setup(struct b43_wldev *dev)
  63 {
  64         u16 save[2];
  65 
  66         b43_radio_set(dev, 0x09d, 0x4);
  67         b43_radio_write(dev, 0x09e, 0xf);
  68 
  69         /* Channel specific values in theory, in practice always the same */
  70         b43_radio_write(dev, 0x02a, 0xb);
  71         b43_radio_maskset(dev, 0x030, ~0x3, 0xa);
  72         b43_radio_maskset(dev, 0x091, ~0x3, 0);
  73         b43_radio_maskset(dev, 0x038, ~0xf, 0x7);
  74         b43_radio_maskset(dev, 0x030, ~0xc, 0x8);
  75         b43_radio_maskset(dev, 0x05e, ~0xf, 0x8);
  76         b43_radio_maskset(dev, 0x05e, ~0xf0, 0x80);
  77         b43_radio_write(dev, 0x06c, 0x80);
  78 
  79         save[0] = b43_radio_read(dev, 0x044);
  80         save[1] = b43_radio_read(dev, 0x12b);
  81 
  82         b43_radio_set(dev, 0x044, 0x7);
  83         b43_radio_set(dev, 0x12b, 0xe);
  84 
  85         /* TODO */
  86 
  87         b43_radio_write(dev, 0x040, 0xfb);
  88 
  89         b43_radio_write(dev, 0x041, 0x9a);
  90         b43_radio_write(dev, 0x042, 0xa3);
  91         b43_radio_write(dev, 0x043, 0x0c);
  92 
  93         /* TODO */
  94 
  95         b43_radio_set(dev, 0x044, 0x0c);
  96         udelay(1);
  97 
  98         b43_radio_write(dev, 0x044, save[0]);
  99         b43_radio_write(dev, 0x12b, save[1]);
 100 
 101         if (dev->phy.rev == 1) {
 102                 /* brcmsmac uses outdated 0x3 for 0x038 */
 103                 b43_radio_write(dev, 0x038, 0x0);
 104                 b43_radio_write(dev, 0x091, 0x7);
 105         }
 106 }
 107 
 108 /* wlc_radio_2064_init */
 109 static void b43_radio_2064_init(struct b43_wldev *dev)
 110 {
 111         if (b43_current_band(dev->wl) == NL80211_BAND_2GHZ) {
 112                 b43_radio_write(dev, 0x09c, 0x0020);
 113                 b43_radio_write(dev, 0x105, 0x0008);
 114         } else {
 115                 /* TODO */
 116         }
 117         b43_radio_write(dev, 0x032, 0x0062);
 118         b43_radio_write(dev, 0x033, 0x0019);
 119         b43_radio_write(dev, 0x090, 0x0010);
 120         b43_radio_write(dev, 0x010, 0x0000);
 121         if (dev->phy.rev == 1) {
 122                 b43_radio_write(dev, 0x060, 0x007f);
 123                 b43_radio_write(dev, 0x061, 0x0072);
 124                 b43_radio_write(dev, 0x062, 0x007f);
 125         }
 126         b43_radio_write(dev, 0x01d, 0x0002);
 127         b43_radio_write(dev, 0x01e, 0x0006);
 128 
 129         b43_phy_write(dev, 0x4ea, 0x4688);
 130         b43_phy_maskset(dev, 0x4eb, ~0x7, 0x2);
 131         b43_phy_mask(dev, 0x4eb, ~0x01c0);
 132         b43_phy_maskset(dev, 0x46a, 0xff00, 0x19);
 133 
 134         b43_lcntab_write(dev, B43_LCNTAB16(0x00, 0x55), 0);
 135 
 136         b43_radio_mask(dev, 0x05b, (u16) ~0xff02);
 137         b43_radio_set(dev, 0x004, 0x40);
 138         b43_radio_set(dev, 0x120, 0x10);
 139         b43_radio_set(dev, 0x078, 0x80);
 140         b43_radio_set(dev, 0x129, 0x2);
 141         b43_radio_set(dev, 0x057, 0x1);
 142         b43_radio_set(dev, 0x05b, 0x2);
 143 
 144         /* TODO: wait for some bit to be set */
 145         b43_radio_read(dev, 0x05c);
 146 
 147         b43_radio_mask(dev, 0x05b, (u16) ~0xff02);
 148         b43_radio_mask(dev, 0x057, (u16) ~0xff01);
 149 
 150         b43_phy_write(dev, 0x933, 0x2d6b);
 151         b43_phy_write(dev, 0x934, 0x2d6b);
 152         b43_phy_write(dev, 0x935, 0x2d6b);
 153         b43_phy_write(dev, 0x936, 0x2d6b);
 154         b43_phy_write(dev, 0x937, 0x016b);
 155 
 156         b43_radio_mask(dev, 0x057, (u16) ~0xff02);
 157         b43_radio_write(dev, 0x0c2, 0x006f);
 158 }
 159 
 160 /**************************************************
 161  * Various PHY ops
 162  **************************************************/
 163 
 164 /* wlc_lcnphy_toggle_afe_pwdn */
 165 static void b43_phy_lcn_afe_set_unset(struct b43_wldev *dev)
 166 {
 167         u16 afe_ctl2 = b43_phy_read(dev, B43_PHY_LCN_AFE_CTL2);
 168         u16 afe_ctl1 = b43_phy_read(dev, B43_PHY_LCN_AFE_CTL1);
 169 
 170         b43_phy_write(dev, B43_PHY_LCN_AFE_CTL2, afe_ctl2 | 0x1);
 171         b43_phy_write(dev, B43_PHY_LCN_AFE_CTL1, afe_ctl1 | 0x1);
 172 
 173         b43_phy_write(dev, B43_PHY_LCN_AFE_CTL2, afe_ctl2 & ~0x1);
 174         b43_phy_write(dev, B43_PHY_LCN_AFE_CTL1, afe_ctl1 & ~0x1);
 175 
 176         b43_phy_write(dev, B43_PHY_LCN_AFE_CTL2, afe_ctl2);
 177         b43_phy_write(dev, B43_PHY_LCN_AFE_CTL1, afe_ctl1);
 178 }
 179 
 180 /* wlc_lcnphy_get_pa_gain */
 181 static u16 b43_phy_lcn_get_pa_gain(struct b43_wldev *dev)
 182 {
 183         return (b43_phy_read(dev, 0x4fb) & 0x7f00) >> 8;
 184 }
 185 
 186 /* wlc_lcnphy_set_dac_gain */
 187 static void b43_phy_lcn_set_dac_gain(struct b43_wldev *dev, u16 dac_gain)
 188 {
 189         u16 dac_ctrl;
 190 
 191         dac_ctrl = b43_phy_read(dev, 0x439);
 192         dac_ctrl = dac_ctrl & 0xc7f;
 193         dac_ctrl = dac_ctrl | (dac_gain << 7);
 194         b43_phy_maskset(dev, 0x439, ~0xfff, dac_ctrl);
 195 }
 196 
 197 /* wlc_lcnphy_set_bbmult */
 198 static void b43_phy_lcn_set_bbmult(struct b43_wldev *dev, u8 m0)
 199 {
 200         b43_lcntab_write(dev, B43_LCNTAB16(0x00, 0x57), m0 << 8);
 201 }
 202 
 203 /* wlc_lcnphy_clear_tx_power_offsets */
 204 static void b43_phy_lcn_clear_tx_power_offsets(struct b43_wldev *dev)
 205 {
 206         u8 i;
 207 
 208         if (1) { /* FIXME */
 209                 b43_phy_write(dev, B43_PHY_LCN_TABLE_ADDR, (0x7 << 10) | 0x340);
 210                 for (i = 0; i < 30; i++) {
 211                         b43_phy_write(dev, B43_PHY_LCN_TABLE_DATAHI, 0);
 212                         b43_phy_write(dev, B43_PHY_LCN_TABLE_DATALO, 0);
 213                 }
 214         }
 215 
 216         b43_phy_write(dev, B43_PHY_LCN_TABLE_ADDR, (0x7 << 10) | 0x80);
 217         for (i = 0; i < 64; i++) {
 218                 b43_phy_write(dev, B43_PHY_LCN_TABLE_DATAHI, 0);
 219                 b43_phy_write(dev, B43_PHY_LCN_TABLE_DATALO, 0);
 220         }
 221 }
 222 
 223 /* wlc_lcnphy_rev0_baseband_init */
 224 static void b43_phy_lcn_rev0_baseband_init(struct b43_wldev *dev)
 225 {
 226         b43_radio_write(dev, 0x11c, 0);
 227 
 228         b43_phy_write(dev, 0x43b, 0);
 229         b43_phy_write(dev, 0x43c, 0);
 230         b43_phy_write(dev, 0x44c, 0);
 231         b43_phy_write(dev, 0x4e6, 0);
 232         b43_phy_write(dev, 0x4f9, 0);
 233         b43_phy_write(dev, 0x4b0, 0);
 234         b43_phy_write(dev, 0x938, 0);
 235         b43_phy_write(dev, 0x4b0, 0);
 236         b43_phy_write(dev, 0x44e, 0);
 237 
 238         b43_phy_set(dev, 0x567, 0x03);
 239 
 240         b43_phy_set(dev, 0x44a, 0x44);
 241         b43_phy_write(dev, 0x44a, 0x80);
 242 
 243         if (!(dev->dev->bus_sprom->boardflags_lo & B43_BFL_FEM))
 244                 ; /* TODO */
 245         b43_phy_maskset(dev, 0x634, ~0xff, 0xc);
 246         if (dev->dev->bus_sprom->boardflags_lo & B43_BFL_FEM) {
 247                 b43_phy_maskset(dev, 0x634, ~0xff, 0xa);
 248                 b43_phy_write(dev, 0x910, 0x1);
 249         }
 250 
 251         b43_phy_write(dev, 0x910, 0x1);
 252 
 253         b43_phy_maskset(dev, 0x448, ~0x300, 0x100);
 254         b43_phy_maskset(dev, 0x608, ~0xff, 0x17);
 255         b43_phy_maskset(dev, 0x604, ~0x7ff, 0x3ea);
 256 }
 257 
 258 /* wlc_lcnphy_bu_tweaks */
 259 static void b43_phy_lcn_bu_tweaks(struct b43_wldev *dev)
 260 {
 261         b43_phy_set(dev, 0x805, 0x1);
 262 
 263         b43_phy_maskset(dev, 0x42f, ~0x7, 0x3);
 264         b43_phy_maskset(dev, 0x030, ~0x7, 0x3);
 265 
 266         b43_phy_write(dev, 0x414, 0x1e10);
 267         b43_phy_write(dev, 0x415, 0x0640);
 268 
 269         b43_phy_maskset(dev, 0x4df, (u16) ~0xff00, 0xf700);
 270 
 271         b43_phy_set(dev, 0x44a, 0x44);
 272         b43_phy_write(dev, 0x44a, 0x80);
 273 
 274         b43_phy_maskset(dev, 0x434, ~0xff, 0xfd);
 275         b43_phy_maskset(dev, 0x420, ~0xff, 0x10);
 276 
 277         if (dev->dev->bus_sprom->board_rev >= 0x1204)
 278                 b43_radio_set(dev, 0x09b, 0xf0);
 279 
 280         b43_phy_write(dev, 0x7d6, 0x0902);
 281 
 282         b43_phy_maskset(dev, 0x429, ~0xf, 0x9);
 283         b43_phy_maskset(dev, 0x429, ~(0x3f << 4), 0xe << 4);
 284 
 285         if (dev->phy.rev == 1) {
 286                 b43_phy_maskset(dev, 0x423, ~0xff, 0x46);
 287                 b43_phy_maskset(dev, 0x411, ~0xff, 1);
 288                 b43_phy_set(dev, 0x434, 0xff); /* FIXME: update to wl */
 289 
 290                 /* TODO: wl operates on PHY 0x416, brcmsmac is outdated here */
 291 
 292                 b43_phy_maskset(dev, 0x656, ~0xf, 2);
 293                 b43_phy_set(dev, 0x44d, 4);
 294 
 295                 b43_radio_set(dev, 0x0f7, 0x4);
 296                 b43_radio_mask(dev, 0x0f1, ~0x3);
 297                 b43_radio_maskset(dev, 0x0f2, ~0xf8, 0x90);
 298                 b43_radio_maskset(dev, 0x0f3, ~0x3, 0x2);
 299                 b43_radio_maskset(dev, 0x0f3, ~0xf0, 0xa0);
 300 
 301                 b43_radio_set(dev, 0x11f, 0x2);
 302 
 303                 b43_phy_lcn_clear_tx_power_offsets(dev);
 304 
 305                 /* TODO: something more? */
 306         }
 307 }
 308 
 309 /* wlc_lcnphy_vbat_temp_sense_setup */
 310 static void b43_phy_lcn_sense_setup(struct b43_wldev *dev,
 311                                     enum lcn_sense_type sense_type)
 312 {
 313         u8 auxpga_vmidcourse, auxpga_vmidfine, auxpga_gain;
 314         u16 auxpga_vmid;
 315         u8 tx_pwr_idx;
 316         u8 i;
 317 
 318         u16 save_radio_regs[6][2] = {
 319                 { 0x007, 0 }, { 0x0ff, 0 }, { 0x11f, 0 }, { 0x005, 0 },
 320                 { 0x025, 0 }, { 0x112, 0 },
 321         };
 322         u16 save_phy_regs[14][2] = {
 323                 { 0x503, 0 }, { 0x4a4, 0 }, { 0x4d0, 0 }, { 0x4d9, 0 },
 324                 { 0x4da, 0 }, { 0x4a6, 0 }, { 0x938, 0 }, { 0x939, 0 },
 325                 { 0x4d8, 0 }, { 0x4d0, 0 }, { 0x4d7, 0 }, { 0x4a5, 0 },
 326                 { 0x40d, 0 }, { 0x4a2, 0 },
 327         };
 328         u16 save_radio_4a4;
 329 
 330         msleep(1);
 331 
 332         /* Save */
 333         for (i = 0; i < 6; i++)
 334                 save_radio_regs[i][1] = b43_radio_read(dev,
 335                                                        save_radio_regs[i][0]);
 336         for (i = 0; i < 14; i++)
 337                 save_phy_regs[i][1] = b43_phy_read(dev, save_phy_regs[i][0]);
 338         b43_mac_suspend(dev);
 339         save_radio_4a4 = b43_radio_read(dev, 0x4a4);
 340         /* wlc_lcnphy_set_tx_pwr_ctrl(pi, LCNPHY_TX_PWR_CTRL_OFF); */
 341         tx_pwr_idx = dev->phy.lcn->tx_pwr_curr_idx;
 342 
 343         /* Setup */
 344         /* TODO: wlc_lcnphy_set_tx_pwr_by_index(pi, 127); */
 345         b43_radio_set(dev, 0x007, 0x1);
 346         b43_radio_set(dev, 0x0ff, 0x10);
 347         b43_radio_set(dev, 0x11f, 0x4);
 348 
 349         b43_phy_mask(dev, 0x503, ~0x1);
 350         b43_phy_mask(dev, 0x503, ~0x4);
 351         b43_phy_mask(dev, 0x4a4, ~0x4000);
 352         b43_phy_mask(dev, 0x4a4, (u16) ~0x8000);
 353         b43_phy_mask(dev, 0x4d0, ~0x20);
 354         b43_phy_set(dev, 0x4a5, 0xff);
 355         b43_phy_maskset(dev, 0x4a5, ~0x7000, 0x5000);
 356         b43_phy_mask(dev, 0x4a5, ~0x700);
 357         b43_phy_maskset(dev, 0x40d, ~0xff, 64);
 358         b43_phy_maskset(dev, 0x40d, ~0x700, 0x600);
 359         b43_phy_maskset(dev, 0x4a2, ~0xff, 64);
 360         b43_phy_maskset(dev, 0x4a2, ~0x700, 0x600);
 361         b43_phy_maskset(dev, 0x4d9, ~0x70, 0x20);
 362         b43_phy_maskset(dev, 0x4d9, ~0x700, 0x300);
 363         b43_phy_maskset(dev, 0x4d9, ~0x7000, 0x1000);
 364         b43_phy_mask(dev, 0x4da, ~0x1000);
 365         b43_phy_set(dev, 0x4da, 0x2000);
 366         b43_phy_set(dev, 0x4a6, 0x8000);
 367 
 368         b43_radio_write(dev, 0x025, 0xc);
 369         b43_radio_set(dev, 0x005, 0x8);
 370         b43_phy_set(dev, 0x938, 0x4);
 371         b43_phy_set(dev, 0x939, 0x4);
 372         b43_phy_set(dev, 0x4a4, 0x1000);
 373 
 374         /* FIXME: don't hardcode */
 375         b43_lcntab_write(dev, B43_LCNTAB16(0x8, 0x6), 0x640);
 376 
 377         switch (sense_type) {
 378         case B43_SENSE_TEMP:
 379                 b43_phy_set(dev, 0x4d7, 0x8);
 380                 b43_phy_maskset(dev, 0x4d7, ~0x7000, 0x1000);
 381                 auxpga_vmidcourse = 8;
 382                 auxpga_vmidfine = 0x4;
 383                 auxpga_gain = 2;
 384                 b43_radio_set(dev, 0x082, 0x20);
 385                 break;
 386         case B43_SENSE_VBAT:
 387                 b43_phy_set(dev, 0x4d7, 0x8);
 388                 b43_phy_maskset(dev, 0x4d7, ~0x7000, 0x3000);
 389                 auxpga_vmidcourse = 7;
 390                 auxpga_vmidfine = 0xa;
 391                 auxpga_gain = 2;
 392                 break;
 393         }
 394         auxpga_vmid = (0x200 | (auxpga_vmidcourse << 4) | auxpga_vmidfine);
 395 
 396         b43_phy_set(dev, 0x4d8, 0x1);
 397         b43_phy_maskset(dev, 0x4d8, ~(0x3ff << 2), auxpga_vmid << 2);
 398         b43_phy_set(dev, 0x4d8, 0x2);
 399         b43_phy_maskset(dev, 0x4d8, ~(0x7 << 12), auxpga_gain << 12);
 400         b43_phy_set(dev, 0x4d0, 0x20);
 401         b43_radio_write(dev, 0x112, 0x6);
 402 
 403         b43_dummy_transmission(dev, true, false);
 404         /* Wait if not done */
 405         if (!(b43_phy_read(dev, 0x476) & 0x8000))
 406                 udelay(10);
 407 
 408         /* Restore */
 409         for (i = 0; i < 6; i++)
 410                 b43_radio_write(dev, save_radio_regs[i][0],
 411                                 save_radio_regs[i][1]);
 412         for (i = 0; i < 14; i++)
 413                 b43_phy_write(dev, save_phy_regs[i][0], save_phy_regs[i][1]);
 414         /* TODO: wlc_lcnphy_set_tx_pwr_by_index(tx_pwr_idx) */
 415         b43_radio_write(dev, 0x4a4, save_radio_4a4);
 416 
 417         b43_mac_enable(dev);
 418 
 419         msleep(1);
 420 }
 421 
 422 static bool b43_phy_lcn_load_tx_iir_cck_filter(struct b43_wldev *dev,
 423                                                u8 filter_type)
 424 {
 425         int i, j;
 426         u16 phy_regs[] = { 0x910, 0x91e, 0x91f, 0x924, 0x925, 0x926, 0x920,
 427                            0x921, 0x927, 0x928, 0x929, 0x922, 0x923, 0x930,
 428                            0x931, 0x932 };
 429         /* Table is from brcmsmac, values for type 25 were outdated, probably
 430          * others need updating too */
 431         struct lcn_tx_iir_filter tx_iir_filters_cck[] = {
 432                 { 0,  { 1, 415, 1874, 64, 128, 64, 792, 1656, 64, 128, 64, 778,
 433                         1582, 64, 128, 64 } },
 434                 { 1,  { 1, 402, 1847, 259, 59, 259, 671, 1794, 68, 54, 68, 608,
 435                         1863, 93, 167, 93 } },
 436                 { 2,  { 1, 415, 1874, 64, 128, 64, 792, 1656, 192, 384, 192,
 437                         778, 1582, 64, 128, 64 } },
 438                 { 3,  { 1, 302, 1841, 129, 258, 129, 658, 1720, 205, 410, 205,
 439                         754, 1760, 170, 340, 170 } },
 440                 { 20, { 1, 360, 1884, 242, 1734, 242, 752, 1720, 205, 1845, 205,
 441                         767, 1760, 256, 185, 256 } },
 442                 { 21, { 1, 360, 1884, 149, 1874, 149, 752, 1720, 205, 1883, 205,
 443                         767, 1760, 256, 273, 256 } },
 444                 { 22, { 1, 360, 1884, 98, 1948, 98, 752, 1720, 205, 1924, 205,
 445                         767, 1760, 256, 352, 256 } },
 446                 { 23, { 1, 350, 1884, 116, 1966, 116, 752, 1720, 205, 2008, 205,
 447                         767, 1760, 128, 233, 128 } },
 448                 { 24, { 1, 325, 1884, 32, 40, 32, 756, 1720, 256, 471, 256, 766,
 449                         1760, 256, 1881, 256 } },
 450                 { 25, { 1, 299, 1884, 51, 64, 51, 736, 1720, 256, 471, 256, 765,
 451                         1760, 262, 1878, 262 } },
 452                 /* brcmsmac version { 25, { 1, 299, 1884, 51, 64, 51, 736, 1720,
 453                  * 256, 471, 256, 765, 1760, 256, 1881, 256 } }, */
 454                 { 26, { 1, 277, 1943, 39, 117, 88, 637, 1838, 64, 192, 144, 614,
 455                         1864, 128, 384, 288 } },
 456                 { 27, { 1, 245, 1943, 49, 147, 110, 626, 1838, 256, 768, 576,
 457                         613, 1864, 128, 384, 288 } },
 458                 { 30, { 1, 302, 1841, 61, 122, 61, 658, 1720, 205, 410, 205,
 459                         754, 1760, 170, 340, 170 } },
 460         };
 461 
 462         for (i = 0; i < ARRAY_SIZE(tx_iir_filters_cck); i++) {
 463                 if (tx_iir_filters_cck[i].type == filter_type) {
 464                         for (j = 0; j < 16; j++)
 465                                 b43_phy_write(dev, phy_regs[j],
 466                                               tx_iir_filters_cck[i].values[j]);
 467                         return true;
 468                 }
 469         }
 470 
 471         return false;
 472 }
 473 
 474 static bool b43_phy_lcn_load_tx_iir_ofdm_filter(struct b43_wldev *dev,
 475                                                 u8 filter_type)
 476 {
 477         int i, j;
 478         u16 phy_regs[] = { 0x90f, 0x900, 0x901, 0x906, 0x907, 0x908, 0x902,
 479                            0x903, 0x909, 0x90a, 0x90b, 0x904, 0x905, 0x90c,
 480                            0x90d, 0x90e };
 481         struct lcn_tx_iir_filter tx_iir_filters_ofdm[] = {
 482                 { 0, { 0, 0xa2, 0x0, 0x100, 0x100, 0x0, 0x0, 0x0, 0x100, 0x0,
 483                        0x0, 0x278, 0xfea0, 0x80, 0x100, 0x80 } },
 484                 { 1, { 0, 374, 0xFF79, 16, 32, 16, 799, 0xFE74, 50, 32, 50, 750,
 485                        0xFE2B, 212, 0xFFCE, 212 } },
 486                 { 2, { 0, 375, 0xFF16, 37, 76, 37, 799, 0xFE74, 32, 20, 32, 748,
 487                        0xFEF2, 128, 0xFFE2, 128 } },
 488         };
 489 
 490         for (i = 0; i < ARRAY_SIZE(tx_iir_filters_ofdm); i++) {
 491                 if (tx_iir_filters_ofdm[i].type == filter_type) {
 492                         for (j = 0; j < 16; j++)
 493                                 b43_phy_write(dev, phy_regs[j],
 494                                               tx_iir_filters_ofdm[i].values[j]);
 495                         return true;
 496                 }
 497         }
 498 
 499         return false;
 500 }
 501 
 502 /* wlc_lcnphy_set_tx_gain_override */
 503 static void b43_phy_lcn_set_tx_gain_override(struct b43_wldev *dev, bool enable)
 504 {
 505         b43_phy_maskset(dev, 0x4b0, ~(0x1 << 7), enable << 7);
 506         b43_phy_maskset(dev, 0x4b0, ~(0x1 << 14), enable << 14);
 507         b43_phy_maskset(dev, 0x43b, ~(0x1 << 6), enable << 6);
 508 }
 509 
 510 /* wlc_lcnphy_set_tx_gain */
 511 static void b43_phy_lcn_set_tx_gain(struct b43_wldev *dev,
 512                                     struct lcn_tx_gains *target_gains)
 513 {
 514         u16 pa_gain = b43_phy_lcn_get_pa_gain(dev);
 515 
 516         b43_phy_write(dev, 0x4b5,
 517                       (target_gains->gm_gain | (target_gains->pga_gain << 8)));
 518         b43_phy_maskset(dev, 0x4fb, ~0x7fff,
 519                         (target_gains->pad_gain | (pa_gain << 8)));
 520         b43_phy_write(dev, 0x4fc,
 521                       (target_gains->gm_gain | (target_gains->pga_gain << 8)));
 522         b43_phy_maskset(dev, 0x4fd, ~0x7fff,
 523                         (target_gains->pad_gain | (pa_gain << 8)));
 524 
 525         b43_phy_lcn_set_dac_gain(dev, target_gains->dac_gain);
 526         b43_phy_lcn_set_tx_gain_override(dev, true);
 527 }
 528 
 529 /* wlc_lcnphy_tx_pwr_ctrl_init */
 530 static void b43_phy_lcn_tx_pwr_ctl_init(struct b43_wldev *dev)
 531 {
 532         struct lcn_tx_gains tx_gains;
 533         u8 bbmult;
 534 
 535         b43_mac_suspend(dev);
 536 
 537         if (!dev->phy.lcn->hw_pwr_ctl_capable) {
 538                 if (b43_current_band(dev->wl) == NL80211_BAND_2GHZ) {
 539                         tx_gains.gm_gain = 4;
 540                         tx_gains.pga_gain = 12;
 541                         tx_gains.pad_gain = 12;
 542                         tx_gains.dac_gain = 0;
 543                         bbmult = 150;
 544                 } else {
 545                         tx_gains.gm_gain = 7;
 546                         tx_gains.pga_gain = 15;
 547                         tx_gains.pad_gain = 14;
 548                         tx_gains.dac_gain = 0;
 549                         bbmult = 150;
 550                 }
 551                 b43_phy_lcn_set_tx_gain(dev, &tx_gains);
 552                 b43_phy_lcn_set_bbmult(dev, bbmult);
 553                 b43_phy_lcn_sense_setup(dev, B43_SENSE_TEMP);
 554         } else {
 555                 b43err(dev->wl, "TX power control not supported for this HW\n");
 556         }
 557 
 558         b43_mac_enable(dev);
 559 }
 560 
 561 /* wlc_lcnphy_txrx_spur_avoidance_mode */
 562 static void b43_phy_lcn_txrx_spur_avoidance_mode(struct b43_wldev *dev,
 563                                                  bool enable)
 564 {
 565         if (enable) {
 566                 b43_phy_write(dev, 0x942, 0x7);
 567                 b43_phy_write(dev, 0x93b, ((1 << 13) + 23));
 568                 b43_phy_write(dev, 0x93c, ((1 << 13) + 1989));
 569 
 570                 b43_phy_write(dev, 0x44a, 0x084);
 571                 b43_phy_write(dev, 0x44a, 0x080);
 572                 b43_phy_write(dev, 0x6d3, 0x2222);
 573                 b43_phy_write(dev, 0x6d3, 0x2220);
 574         } else {
 575                 b43_phy_write(dev, 0x942, 0x0);
 576                 b43_phy_write(dev, 0x93b, ((0 << 13) + 23));
 577                 b43_phy_write(dev, 0x93c, ((0 << 13) + 1989));
 578         }
 579         b43_mac_switch_freq(dev, enable);
 580 }
 581 
 582 /**************************************************
 583  * Channel switching ops.
 584  **************************************************/
 585 
 586 /* wlc_lcnphy_set_chanspec_tweaks */
 587 static void b43_phy_lcn_set_channel_tweaks(struct b43_wldev *dev, int channel)
 588 {
 589         struct bcma_drv_cc *cc = &dev->dev->bdev->bus->drv_cc;
 590 
 591         b43_phy_maskset(dev, 0x448, ~0x300, (channel == 14) ? 0x200 : 0x100);
 592 
 593         if (channel == 1 || channel == 2 || channel == 3 || channel == 4 ||
 594             channel == 9 || channel == 10 || channel == 11 || channel == 12) {
 595                 bcma_chipco_pll_write(cc, 0x2, 0x03000c04);
 596                 bcma_chipco_pll_maskset(cc, 0x3, 0x00ffffff, 0x0);
 597                 bcma_chipco_pll_write(cc, 0x4, 0x200005c0);
 598 
 599                 bcma_cc_set32(cc, BCMA_CC_PMU_CTL, 0x400);
 600 
 601                 b43_phy_write(dev, 0x942, 0);
 602 
 603                 b43_phy_lcn_txrx_spur_avoidance_mode(dev, false);
 604                 b43_phy_maskset(dev, 0x424, (u16) ~0xff00, 0x1b00);
 605                 b43_phy_write(dev, 0x425, 0x5907);
 606         } else {
 607                 bcma_chipco_pll_write(cc, 0x2, 0x03140c04);
 608                 bcma_chipco_pll_maskset(cc, 0x3, 0x00ffffff, 0x333333);
 609                 bcma_chipco_pll_write(cc, 0x4, 0x202c2820);
 610 
 611                 bcma_cc_set32(cc, BCMA_CC_PMU_CTL, 0x400);
 612 
 613                 b43_phy_write(dev, 0x942, 0);
 614 
 615                 b43_phy_lcn_txrx_spur_avoidance_mode(dev, true);
 616                 b43_phy_maskset(dev, 0x424, (u16) ~0xff00, 0x1f00);
 617                 b43_phy_write(dev, 0x425, 0x590a);
 618         }
 619 
 620         b43_phy_set(dev, 0x44a, 0x44);
 621         b43_phy_write(dev, 0x44a, 0x80);
 622 }
 623 
 624 /* wlc_phy_chanspec_set_lcnphy */
 625 static int b43_phy_lcn_set_channel(struct b43_wldev *dev,
 626                                    struct ieee80211_channel *channel,
 627                                    enum nl80211_channel_type channel_type)
 628 {
 629         static const u16 sfo_cfg[14][2] = {
 630                 {965, 1087}, {967, 1085}, {969, 1082}, {971, 1080}, {973, 1078},
 631                 {975, 1076}, {977, 1073}, {979, 1071}, {981, 1069}, {983, 1067},
 632                 {985, 1065}, {987, 1063}, {989, 1060}, {994, 1055},
 633         };
 634 
 635         b43_phy_lcn_set_channel_tweaks(dev, channel->hw_value);
 636 
 637         b43_phy_set(dev, 0x44a, 0x44);
 638         b43_phy_write(dev, 0x44a, 0x80);
 639 
 640         b43_radio_2064_channel_setup(dev);
 641         mdelay(1);
 642 
 643         b43_phy_lcn_afe_set_unset(dev);
 644 
 645         b43_phy_write(dev, 0x657, sfo_cfg[channel->hw_value - 1][0]);
 646         b43_phy_write(dev, 0x658, sfo_cfg[channel->hw_value - 1][1]);
 647 
 648         if (channel->hw_value == 14) {
 649                 b43_phy_maskset(dev, 0x448, ~(0x3 << 8), (2) << 8);
 650                 b43_phy_lcn_load_tx_iir_cck_filter(dev, 3);
 651         } else {
 652                 b43_phy_maskset(dev, 0x448, ~(0x3 << 8), (1) << 8);
 653                 /* brcmsmac uses filter_type 2, we follow wl with 25 */
 654                 b43_phy_lcn_load_tx_iir_cck_filter(dev, 25);
 655         }
 656         /* brcmsmac uses filter_type 2, we follow wl with 0 */
 657         b43_phy_lcn_load_tx_iir_ofdm_filter(dev, 0);
 658 
 659         b43_phy_maskset(dev, 0x4eb, ~(0x7 << 3), 0x1 << 3);
 660 
 661         return 0;
 662 }
 663 
 664 /**************************************************
 665  * Basic PHY ops.
 666  **************************************************/
 667 
 668 static int b43_phy_lcn_op_allocate(struct b43_wldev *dev)
 669 {
 670         struct b43_phy_lcn *phy_lcn;
 671 
 672         phy_lcn = kzalloc(sizeof(*phy_lcn), GFP_KERNEL);
 673         if (!phy_lcn)
 674                 return -ENOMEM;
 675         dev->phy.lcn = phy_lcn;
 676 
 677         return 0;
 678 }
 679 
 680 static void b43_phy_lcn_op_free(struct b43_wldev *dev)
 681 {
 682         struct b43_phy *phy = &dev->phy;
 683         struct b43_phy_lcn *phy_lcn = phy->lcn;
 684 
 685         kfree(phy_lcn);
 686         phy->lcn = NULL;
 687 }
 688 
 689 static void b43_phy_lcn_op_prepare_structs(struct b43_wldev *dev)
 690 {
 691         struct b43_phy *phy = &dev->phy;
 692         struct b43_phy_lcn *phy_lcn = phy->lcn;
 693 
 694         memset(phy_lcn, 0, sizeof(*phy_lcn));
 695 }
 696 
 697 /* wlc_phy_init_lcnphy */
 698 static int b43_phy_lcn_op_init(struct b43_wldev *dev)
 699 {
 700         struct bcma_drv_cc *cc = &dev->dev->bdev->bus->drv_cc;
 701 
 702         b43_phy_set(dev, 0x44a, 0x80);
 703         b43_phy_mask(dev, 0x44a, 0x7f);
 704         b43_phy_set(dev, 0x6d1, 0x80);
 705         b43_phy_write(dev, 0x6d0, 0x7);
 706 
 707         b43_phy_lcn_afe_set_unset(dev);
 708 
 709         b43_phy_write(dev, 0x60a, 0xa0);
 710         b43_phy_write(dev, 0x46a, 0x19);
 711         b43_phy_maskset(dev, 0x663, 0xFF00, 0x64);
 712 
 713         b43_phy_lcn_tables_init(dev);
 714 
 715         b43_phy_lcn_rev0_baseband_init(dev);
 716         b43_phy_lcn_bu_tweaks(dev);
 717 
 718         if (dev->phy.radio_ver == 0x2064)
 719                 b43_radio_2064_init(dev);
 720         else
 721                 B43_WARN_ON(1);
 722 
 723         if (b43_current_band(dev->wl) == NL80211_BAND_2GHZ)
 724                 b43_phy_lcn_tx_pwr_ctl_init(dev);
 725 
 726         b43_switch_channel(dev, dev->phy.channel);
 727 
 728         bcma_chipco_regctl_maskset(cc, 0, 0xf, 0x9);
 729         bcma_chipco_chipctl_maskset(cc, 0, 0, 0x03cddddd);
 730 
 731         /* TODO */
 732 
 733         b43_phy_set(dev, 0x448, 0x4000);
 734         udelay(100);
 735         b43_phy_mask(dev, 0x448, ~0x4000);
 736 
 737         /* TODO */
 738 
 739         return 0;
 740 }
 741 
 742 static void b43_phy_lcn_op_software_rfkill(struct b43_wldev *dev,
 743                                         bool blocked)
 744 {
 745         if (b43_read32(dev, B43_MMIO_MACCTL) & B43_MACCTL_ENABLED)
 746                 b43err(dev->wl, "MAC not suspended\n");
 747 
 748         if (blocked) {
 749                 b43_phy_mask(dev, B43_PHY_LCN_RF_CTL2, ~0x7c00);
 750                 b43_phy_set(dev, B43_PHY_LCN_RF_CTL1, 0x1f00);
 751 
 752                 b43_phy_mask(dev, B43_PHY_LCN_RF_CTL5, ~0x7f00);
 753                 b43_phy_mask(dev, B43_PHY_LCN_RF_CTL4, ~0x2);
 754                 b43_phy_set(dev, B43_PHY_LCN_RF_CTL3, 0x808);
 755 
 756                 b43_phy_mask(dev, B43_PHY_LCN_RF_CTL7, ~0x8);
 757                 b43_phy_set(dev, B43_PHY_LCN_RF_CTL6, 0x8);
 758         } else {
 759                 b43_phy_mask(dev, B43_PHY_LCN_RF_CTL1, ~0x1f00);
 760                 b43_phy_mask(dev, B43_PHY_LCN_RF_CTL3, ~0x808);
 761                 b43_phy_mask(dev, B43_PHY_LCN_RF_CTL6, ~0x8);
 762         }
 763 }
 764 
 765 static void b43_phy_lcn_op_switch_analog(struct b43_wldev *dev, bool on)
 766 {
 767         if (on) {
 768                 b43_phy_mask(dev, B43_PHY_LCN_AFE_CTL1, ~0x7);
 769         } else {
 770                 b43_phy_set(dev, B43_PHY_LCN_AFE_CTL2, 0x7);
 771                 b43_phy_set(dev, B43_PHY_LCN_AFE_CTL1, 0x7);
 772         }
 773 }
 774 
 775 static int b43_phy_lcn_op_switch_channel(struct b43_wldev *dev,
 776                                         unsigned int new_channel)
 777 {
 778         struct ieee80211_channel *channel = dev->wl->hw->conf.chandef.chan;
 779         enum nl80211_channel_type channel_type =
 780                 cfg80211_get_chandef_type(&dev->wl->hw->conf.chandef);
 781 
 782         if (b43_current_band(dev->wl) == NL80211_BAND_2GHZ) {
 783                 if ((new_channel < 1) || (new_channel > 14))
 784                         return -EINVAL;
 785         } else {
 786                 return -EINVAL;
 787         }
 788 
 789         return b43_phy_lcn_set_channel(dev, channel, channel_type);
 790 }
 791 
 792 static unsigned int b43_phy_lcn_op_get_default_chan(struct b43_wldev *dev)
 793 {
 794         if (b43_current_band(dev->wl) == NL80211_BAND_2GHZ)
 795                 return 1;
 796         return 36;
 797 }
 798 
 799 static enum b43_txpwr_result
 800 b43_phy_lcn_op_recalc_txpower(struct b43_wldev *dev, bool ignore_tssi)
 801 {
 802         return B43_TXPWR_RES_DONE;
 803 }
 804 
 805 static void b43_phy_lcn_op_adjust_txpower(struct b43_wldev *dev)
 806 {
 807 }
 808 
 809 /**************************************************
 810  * R/W ops.
 811  **************************************************/
 812 
 813 static void b43_phy_lcn_op_maskset(struct b43_wldev *dev, u16 reg, u16 mask,
 814                                    u16 set)
 815 {
 816         b43_write16f(dev, B43_MMIO_PHY_CONTROL, reg);
 817         b43_write16(dev, B43_MMIO_PHY_DATA,
 818                     (b43_read16(dev, B43_MMIO_PHY_DATA) & mask) | set);
 819 }
 820 
 821 static u16 b43_phy_lcn_op_radio_read(struct b43_wldev *dev, u16 reg)
 822 {
 823         /* LCN-PHY needs 0x200 for read access */
 824         reg |= 0x200;
 825 
 826         b43_write16f(dev, B43_MMIO_RADIO24_CONTROL, reg);
 827         return b43_read16(dev, B43_MMIO_RADIO24_DATA);
 828 }
 829 
 830 static void b43_phy_lcn_op_radio_write(struct b43_wldev *dev, u16 reg,
 831                                        u16 value)
 832 {
 833         b43_write16f(dev, B43_MMIO_RADIO24_CONTROL, reg);
 834         b43_write16(dev, B43_MMIO_RADIO24_DATA, value);
 835 }
 836 
 837 /**************************************************
 838  * PHY ops struct.
 839  **************************************************/
 840 
 841 const struct b43_phy_operations b43_phyops_lcn = {
 842         .allocate               = b43_phy_lcn_op_allocate,
 843         .free                   = b43_phy_lcn_op_free,
 844         .prepare_structs        = b43_phy_lcn_op_prepare_structs,
 845         .init                   = b43_phy_lcn_op_init,
 846         .phy_maskset            = b43_phy_lcn_op_maskset,
 847         .radio_read             = b43_phy_lcn_op_radio_read,
 848         .radio_write            = b43_phy_lcn_op_radio_write,
 849         .software_rfkill        = b43_phy_lcn_op_software_rfkill,
 850         .switch_analog          = b43_phy_lcn_op_switch_analog,
 851         .switch_channel         = b43_phy_lcn_op_switch_channel,
 852         .get_default_chan       = b43_phy_lcn_op_get_default_chan,
 853         .recalc_txpower         = b43_phy_lcn_op_recalc_txpower,
 854         .adjust_txpower         = b43_phy_lcn_op_adjust_txpower,
 855 };
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/net/wireless/broadcom/b43/phy_lcn.c

DEFINITIONS
