drivers/net/wireless/rtlwifi/efuse.c

   1 /******************************************************************************
   2  *
   3  * Copyright(c) 2009-2010  Realtek Corporation.
   4  *
   5  * Tmis program is free software; you can redistribute it and/or modify it
   6  * under the terms of version 2 of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * Tmis program is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  12  * more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along with
  15  * tmis program; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17  *
  18  * Tme full GNU General Public License is included in this distribution in the
  19  * file called LICENSE.
  20  *
  21  * Contact Information:
  22  * wlanfae <wlanfae@realtek.com>
  23  * Realtek Corporation, No. 2, Innovation Road II, Hsinchu Science Park,
  24  * Hsinchu 300, Taiwan.
  25  *
  26  * Larry Finger <Larry.Finger@lwfinger.net>
  27  *
  28  *****************************************************************************/
  29
  30 #include "wifi.h"
  31 #include "efuse.h"
  32
  33 static const u8 MAX_PGPKT_SIZE = 9;
  34 static const u8 PGPKT_DATA_SIZE = 8;
  35 static const int EFUSE_MAX_SIZE = 512;
  36
  37 static const u8 EFUSE_OOB_PROTECT_BYTES = 15;
  38
  39 static const struct efuse_map RTL8712_SDIO_EFUSE_TABLE[] = {
  40         {0, 0, 0, 2},
  41         {0, 1, 0, 2},
  42         {0, 2, 0, 2},
  43         {1, 0, 0, 1},
  44         {1, 0, 1, 1},
  45         {1, 1, 0, 1},
  46         {1, 1, 1, 3},
  47         {1, 3, 0, 17},
  48         {3, 3, 1, 48},
  49         {10, 0, 0, 6},
  50         {10, 3, 0, 1},
  51         {10, 3, 1, 1},
  52         {11, 0, 0, 28}
  53 };
  54
  55 static void read_efuse_byte(struct ieee80211_hw *hw, u16 _offset,
  56                                         u8 *pbuf);
  57 static void efuse_shadow_read_1byte(struct ieee80211_hw *hw, u16 offset,
  58                                     u8 *value);
  59 static void efuse_shadow_read_2byte(struct ieee80211_hw *hw, u16 offset,
  60                                     u16 *value);
  61 static void efuse_shadow_read_4byte(struct ieee80211_hw *hw, u16 offset,
  62                                     u32 *value);
  63 static void efuse_shadow_write_1byte(struct ieee80211_hw *hw, u16 offset,
  64                                      u8 value);
  65 static void efuse_shadow_write_2byte(struct ieee80211_hw *hw, u16 offset,
  66                                      u16 value);
  67 static void efuse_shadow_write_4byte(struct ieee80211_hw *hw, u16 offset,
  68                                      u32 value);
  69 static int efuse_one_byte_read(struct ieee80211_hw *hw, u16 addr,
  70                                         u8 *data);
  71 static int efuse_one_byte_write(struct ieee80211_hw *hw, u16 addr,
  72                                         u8 data);
  73 static void efuse_read_all_map(struct ieee80211_hw *hw, u8 *efuse);
  74 static int efuse_pg_packet_read(struct ieee80211_hw *hw, u8 offset,
  75                                         u8 *data);
  76 static int efuse_pg_packet_write(struct ieee80211_hw *hw, u8 offset,
  77                                  u8 word_en, u8 *data);
  78 static void efuse_word_enable_data_read(u8 word_en, u8 *sourdata,
  79                                         u8 *targetdata);
  80 static u8 efuse_word_enable_data_write(struct ieee80211_hw *hw,
  81                                        u16 efuse_addr, u8 word_en, u8 *data);
  82 static void efuse_power_switch(struct ieee80211_hw *hw, u8 bwrite,
  83                                         u8 pwrstate);
  84 static u16 efuse_get_current_size(struct ieee80211_hw *hw);
  85 static u8 efuse_calculate_word_cnts(u8 word_en);
  86
  87 void efuse_initialize(struct ieee80211_hw *hw)
  88 {
  89         struct rtl_priv *rtlpriv = rtl_priv(hw);
  90         u8 bytetemp;
  91         u8 temp;
  92
  93         bytetemp = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[SYS_FUNC_EN] + 1);
  94         temp = bytetemp | 0x20;
  95         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[SYS_FUNC_EN] + 1, temp);
  96
  97         bytetemp = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[SYS_ISO_CTRL] + 1);
  98         temp = bytetemp & 0xFE;
  99         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[SYS_ISO_CTRL] + 1, temp);
 100
 101         bytetemp = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_TEST] + 3);
 102         temp = bytetemp | 0x80;
 103         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_TEST] + 3, temp);
 104
 105         rtl_write_byte(rtlpriv, 0x2F8, 0x3);
 106
 107         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3, 0x72);
 108
 109 }
 110
 111 u8 efuse_read_1byte(struct ieee80211_hw *hw, u16 address)
 112 {
 113         struct rtl_priv *rtlpriv = rtl_priv(hw);
 114         u8 data;
 115         u8 bytetemp;
 116         u8 temp;
 117         u32 k = 0;
 118
 119         if (address < EFUSE_REAL_CONTENT_LEN) {
 120                 temp = address & 0xFF;
 121                 rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 1,
 122                                temp);
 123                 bytetemp = rtl_read_byte(rtlpriv,
 124                                          rtlpriv->cfg->maps[EFUSE_CTRL] + 2);
 125                 temp = ((address >> 8) & 0x03) | (bytetemp & 0xFC);
 126                 rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2,
 127                                temp);
 128
 129                 bytetemp = rtl_read_byte(rtlpriv,
 130                                          rtlpriv->cfg->maps[EFUSE_CTRL] + 3);
 131                 temp = bytetemp & 0x7F;
 132                 rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3,
 133                                temp);
 134
 135                 bytetemp = rtl_read_byte(rtlpriv,
 136                                          rtlpriv->cfg->maps[EFUSE_CTRL] + 3);
 137                 while (!(bytetemp & 0x80)) {
 138                         bytetemp = rtl_read_byte(rtlpriv,
 139                                                  rtlpriv->cfg->
 140                                                  maps[EFUSE_CTRL] + 3);
 141                         k++;
 142                         if (k == 1000) {
 143                                 k = 0;
 144                                 break;
 145                         }
 146                 }
 147                 data = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL]);
 148                 return data;
 149         } else
 150                 return 0xFF;
 151
 152 }
 153 EXPORT_SYMBOL(efuse_read_1byte);
 154
 155 void efuse_write_1byte(struct ieee80211_hw *hw, u16 address, u8 value)
 156 {
 157         struct rtl_priv *rtlpriv = rtl_priv(hw);
 158         u8 bytetemp;
 159         u8 temp;
 160         u32 k = 0;
 161
 162         RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD,
 163                  ("Addr=%x Data =%x\n", address, value));
 164
 165         if (address < EFUSE_REAL_CONTENT_LEN) {
 166                 rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL], value);
 167
 168                 temp = address & 0xFF;
 169                 rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 1,
 170                                temp);
 171                 bytetemp = rtl_read_byte(rtlpriv,
 172                                          rtlpriv->cfg->maps[EFUSE_CTRL] + 2);
 173
 174                 temp = ((address >> 8) & 0x03) | (bytetemp & 0xFC);
 175                 rtl_write_byte(rtlpriv,
 176                                rtlpriv->cfg->maps[EFUSE_CTRL] + 2, temp);
 177
 178                 bytetemp = rtl_read_byte(rtlpriv,
 179                                          rtlpriv->cfg->maps[EFUSE_CTRL] + 3);
 180                 temp = bytetemp | 0x80;
 181                 rtl_write_byte(rtlpriv,
 182                                rtlpriv->cfg->maps[EFUSE_CTRL] + 3, temp);
 183
 184                 bytetemp = rtl_read_byte(rtlpriv,
 185                                          rtlpriv->cfg->maps[EFUSE_CTRL] + 3);
 186
 187                 while (bytetemp & 0x80) {
 188                         bytetemp = rtl_read_byte(rtlpriv,
 189                                                  rtlpriv->cfg->
 190                                                  maps[EFUSE_CTRL] + 3);
 191                         k++;
 192                         if (k == 100) {
 193                                 k = 0;
 194                                 break;
 195                         }
 196                 }
 197         }
 198
 199 }
 200
 201 static void read_efuse_byte(struct ieee80211_hw *hw, u16 _offset, u8 *pbuf)
 202 {
 203         struct rtl_priv *rtlpriv = rtl_priv(hw);
 204         u32 value32;
 205         u8 readbyte;
 206         u16 retry;
 207
 208         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 1,
 209                        (_offset & 0xff));
 210         readbyte = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2);
 211         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2,
 212                        ((_offset >> 8) & 0x03) | (readbyte & 0xfc));
 213
 214         readbyte = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3);
 215         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3,
 216                        (readbyte & 0x7f));
 217
 218         retry = 0;
 219         value32 = rtl_read_dword(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL]);
 220         while (!(((value32 >> 24) & 0xff) & 0x80) && (retry < 10000)) {
 221                 value32 = rtl_read_dword(rtlpriv,
 222                                          rtlpriv->cfg->maps[EFUSE_CTRL]);
 223                 retry++;
 224         }
 225
 226         udelay(50);
 227         value32 = rtl_read_dword(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL]);
 228
 229         *pbuf = (u8) (value32 & 0xff);
 230 }
 231
 232 void read_efuse(struct ieee80211_hw *hw, u16 _offset, u16 _size_byte, u8 *pbuf)
 233 {
 234         struct rtl_priv *rtlpriv = rtl_priv(hw);
 235         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 236         u8 efuse_tbl[EFUSE_MAP_LEN];
 237         u8 rtemp8[1];
 238         u16 efuse_addr = 0;
 239         u8 offset, wren;
 240         u16 i;
 241         u16 j;
 242         u16 efuse_word[EFUSE_MAX_SECTION][EFUSE_MAX_WORD_UNIT];
 243         u16 efuse_utilized = 0;
 244         u8 efuse_usage;
 245
 246         if ((_offset + _size_byte) > EFUSE_MAP_LEN) {
 247                 RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD,
 248                          ("read_efuse(): Invalid offset(%#x) with read "
 249                           "bytes(%#x)!!\n", _offset, _size_byte));
 250                 return;
 251         }
 252
 253         for (i = 0; i < EFUSE_MAX_SECTION; i++)
 254                 for (j = 0; j < EFUSE_MAX_WORD_UNIT; j++)
 255                         efuse_word[i][j] = 0xFFFF;
 256
 257         read_efuse_byte(hw, efuse_addr, rtemp8);
 258         if (*rtemp8 != 0xFF) {
 259                 efuse_utilized++;
 260                 RTPRINT(rtlpriv, FEEPROM, EFUSE_READ_ALL,
 261                         ("Addr=%d\n", efuse_addr));
 262                 efuse_addr++;
 263         }
 264
 265         while ((*rtemp8 != 0xFF) && (efuse_addr < EFUSE_REAL_CONTENT_LEN)) {
 266                 offset = ((*rtemp8 >> 4) & 0x0f);
 267
 268                 if (offset < EFUSE_MAX_SECTION) {
 269                         wren = (*rtemp8 & 0x0f);
 270                         RTPRINT(rtlpriv, FEEPROM, EFUSE_READ_ALL,
 271                                 ("offset-%d Worden=%x\n", offset, wren));
 272
 273                         for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++) {
 274                                 if (!(wren & 0x01)) {
 275                                         RTPRINT(rtlpriv, FEEPROM,
 276                                                 EFUSE_READ_ALL, ("Addr=%d\n",
 277                                                                  efuse_addr));
 278
 279                                         read_efuse_byte(hw, efuse_addr, rtemp8);
 280                                         efuse_addr++;
 281                                         efuse_utilized++;
 282                                         efuse_word[offset][i] = (*rtemp8 & 0xff);
 283
 284                                         if (efuse_addr >= EFUSE_REAL_CONTENT_LEN)
 285                                                 break;
 286
 287                                         RTPRINT(rtlpriv, FEEPROM,
 288                                                 EFUSE_READ_ALL, ("Addr=%d\n",
 289                                                                  efuse_addr));
 290
 291                                         read_efuse_byte(hw, efuse_addr, rtemp8);
 292                                         efuse_addr++;
 293                                         efuse_utilized++;
 294                                         efuse_word[offset][i] |=
 295                                             (((u16)*rtemp8 << 8) & 0xff00);
 296
 297                                         if (efuse_addr >= EFUSE_REAL_CONTENT_LEN)
 298                                                 break;
 299                                 }
 300
 301                                 wren >>= 1;
 302                         }
 303                 }
 304
 305                 RTPRINT(rtlpriv, FEEPROM, EFUSE_READ_ALL,
 306                         ("Addr=%d\n", efuse_addr));
 307                 read_efuse_byte(hw, efuse_addr, rtemp8);
 308                 if (*rtemp8 != 0xFF && (efuse_addr < 512)) {
 309                         efuse_utilized++;
 310                         efuse_addr++;
 311                 }
 312         }
 313
 314         for (i = 0; i < EFUSE_MAX_SECTION; i++) {
 315                 for (j = 0; j < EFUSE_MAX_WORD_UNIT; j++) {
 316                         efuse_tbl[(i * 8) + (j * 2)] =
 317                             (efuse_word[i][j] & 0xff);
 318                         efuse_tbl[(i * 8) + ((j * 2) + 1)] =
 319                             ((efuse_word[i][j] >> 8) & 0xff);
 320                 }
 321         }
 322
 323         for (i = 0; i < _size_byte; i++)
 324                 pbuf[i] = efuse_tbl[_offset + i];
 325
 326         rtlefuse->efuse_usedbytes = efuse_utilized;
 327         efuse_usage = (u8)((efuse_utilized * 100) / EFUSE_REAL_CONTENT_LEN);
 328         rtlefuse->efuse_usedpercentage = efuse_usage;
 329         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_EFUSE_BYTES,
 330                                       (u8 *)&efuse_utilized);
 331         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_EFUSE_USAGE,
 332                                       (u8 *)&efuse_usage);
 333 }
 334
 335 bool efuse_shadow_update_chk(struct ieee80211_hw *hw)
 336 {
 337         struct rtl_priv *rtlpriv = rtl_priv(hw);
 338         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 339         u8 section_idx, i, Base;
 340         u16 words_need = 0, hdr_num = 0, totalbytes, efuse_used;
 341         bool bwordchanged, bresult = true;
 342
 343         for (section_idx = 0; section_idx < 16; section_idx++) {
 344                 Base = section_idx * 8;
 345                 bwordchanged = false;
 346
 347                 for (i = 0; i < 8; i = i + 2) {
 348                         if ((rtlefuse->efuse_map[EFUSE_INIT_MAP][Base + i] !=
 349                              rtlefuse->efuse_map[EFUSE_MODIFY_MAP][Base + i]) ||
 350                             (rtlefuse->efuse_map[EFUSE_INIT_MAP][Base + i + 1] !=
 351                              rtlefuse->efuse_map[EFUSE_MODIFY_MAP][Base + i +
 352                                                                    1])) {
 353                                 words_need++;
 354                                 bwordchanged = true;
 355                         }
 356                 }
 357
 358                 if (bwordchanged == true)
 359                         hdr_num++;
 360         }
 361
 362         totalbytes = hdr_num + words_need * 2;
 363         efuse_used = rtlefuse->efuse_usedbytes;
 364
 365         if ((totalbytes + efuse_used) >=
 366             (EFUSE_MAX_SIZE - EFUSE_OOB_PROTECT_BYTES))
 367                 bresult = false;
 368
 369         RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD,
 370                  ("efuse_shadow_update_chk(): totalbytes(%#x), "
 371                   "hdr_num(%#x), words_need(%#x), efuse_used(%d)\n",
 372                   totalbytes, hdr_num, words_need, efuse_used));
 373
 374         return bresult;
 375 }
 376
 377 void efuse_shadow_read(struct ieee80211_hw *hw, u8 type,
 378                        u16 offset, u32 *value)
 379 {
 380         if (type == 1)
 381                 efuse_shadow_read_1byte(hw, offset, (u8 *) value);
 382         else if (type == 2)
 383                 efuse_shadow_read_2byte(hw, offset, (u16 *) value);
 384         else if (type == 4)
 385                 efuse_shadow_read_4byte(hw, offset, (u32 *) value);
 386
 387 }
 388
 389 void efuse_shadow_write(struct ieee80211_hw *hw, u8 type, u16 offset,
 390                                 u32 value)
 391 {
 392         if (type == 1)
 393                 efuse_shadow_write_1byte(hw, offset, (u8) value);
 394         else if (type == 2)
 395                 efuse_shadow_write_2byte(hw, offset, (u16) value);
 396         else if (type == 4)
 397                 efuse_shadow_write_4byte(hw, offset, (u32) value);
 398
 399 }
 400
 401 bool efuse_shadow_update(struct ieee80211_hw *hw)
 402 {
 403         struct rtl_priv *rtlpriv = rtl_priv(hw);
 404         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 405         u16 i, offset, base;
 406         u8 word_en = 0x0F;
 407         u8 first_pg = false;
 408
 409         RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD, ("--->\n"));
 410
 411         if (!efuse_shadow_update_chk(hw)) {
 412                 efuse_read_all_map(hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0]);
 413                 memcpy(&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
 414                        &rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
 415                        rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]);
 416
 417                 RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD,
 418                          ("<---efuse out of capacity!!\n"));
 419                 return false;
 420         }
 421         efuse_power_switch(hw, true, true);
 422
 423         for (offset = 0; offset < 16; offset++) {
 424
 425                 word_en = 0x0F;
 426                 base = offset * 8;
 427
 428                 for (i = 0; i < 8; i++) {
 429                         if (first_pg == true) {
 430
 431                                 word_en &= ~(BIT(i / 2));
 432
 433                                 rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i] =
 434                                     rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i];
 435                         } else {
 436
 437                                 if (rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i] !=
 438                                     rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i]) {
 439                                         word_en &= ~(BIT(i / 2));
 440
 441                                         rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i] =
 442                                             rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i];
 443                                 }
 444                         }
 445                 }
 446
 447                 if (word_en != 0x0F) {
 448                         u8 tmpdata[8];
 449                         memcpy(tmpdata,
 450                                &rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base],
 451                                8);
 452                         RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_LOUD,
 453                                       ("U-efuse\n"), tmpdata, 8);
 454
 455                         if (!efuse_pg_packet_write(hw, (u8) offset, word_en,
 456                                                    tmpdata)) {
 457                                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 458                                          ("PG section(%#x) fail!!\n", offset));
 459                                 break;
 460                         }
 461                 }
 462
 463         }
 464
 465         efuse_power_switch(hw, true, false);
 466         efuse_read_all_map(hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0]);
 467
 468         memcpy(&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
 469                &rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
 470                rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]);
 471
 472         RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD, ("<---\n"));
 473         return true;
 474 }
 475
 476 void rtl_efuse_shadow_map_update(struct ieee80211_hw *hw)
 477 {
 478         struct rtl_priv *rtlpriv = rtl_priv(hw);
 479         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 480
 481         if (rtlefuse->autoload_failflag == true) {
 482                 memset(&rtlefuse->efuse_map[EFUSE_INIT_MAP][0], 0xFF, 128);
 483         } else
 484                 efuse_read_all_map(hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0]);
 485
 486         memcpy(&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
 487                &rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
 488                rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]);
 489
 490 }
 491 EXPORT_SYMBOL(rtl_efuse_shadow_map_update);
 492
 493 void efuse_force_write_vendor_Id(struct ieee80211_hw *hw)
 494 {
 495         u8 tmpdata[8] = { 0xFF, 0xFF, 0xEC, 0x10, 0xFF, 0xFF, 0xFF, 0xFF };
 496
 497         efuse_power_switch(hw, true, true);
 498
 499         efuse_pg_packet_write(hw, 1, 0xD, tmpdata);
 500
 501         efuse_power_switch(hw, true, false);
 502
 503 }
 504
 505 void efuse_re_pg_section(struct ieee80211_hw *hw, u8 section_idx)
 506 {
 507 }
 508
 509 static void efuse_shadow_read_1byte(struct ieee80211_hw *hw,
 510                                     u16 offset, u8 *value)
 511 {
 512         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 513         *value = rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset];
 514 }
 515
 516 static void efuse_shadow_read_2byte(struct ieee80211_hw *hw,
 517                                     u16 offset, u16 *value)
 518 {
 519         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 520
 521         *value = rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset];
 522         *value |= rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 1] << 8;
 523
 524 }
 525
 526 static void efuse_shadow_read_4byte(struct ieee80211_hw *hw,
 527                                     u16 offset, u32 *value)
 528 {
 529         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 530
 531         *value = rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset];
 532         *value |= rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 1] << 8;
 533         *value |= rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 2] << 16;
 534         *value |= rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 3] << 24;
 535 }
 536
 537 static void efuse_shadow_write_1byte(struct ieee80211_hw *hw,
 538                                      u16 offset, u8 value)
 539 {
 540         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 541
 542         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset] = value;
 543 }
 544
 545 static void efuse_shadow_write_2byte(struct ieee80211_hw *hw,
 546                                      u16 offset, u16 value)
 547 {
 548         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 549
 550         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset] = value & 0x00FF;
 551         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 1] = value >> 8;
 552
 553 }
 554
 555 static void efuse_shadow_write_4byte(struct ieee80211_hw *hw,
 556                                      u16 offset, u32 value)
 557 {
 558         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 559
 560         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset] =
 561             (u8) (value & 0x000000FF);
 562         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 1] =
 563             (u8) ((value >> 8) & 0x0000FF);
 564         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 2] =
 565             (u8) ((value >> 16) & 0x00FF);
 566         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 3] =
 567             (u8) ((value >> 24) & 0xFF);
 568
 569 }
 570
 571 static int efuse_one_byte_read(struct ieee80211_hw *hw, u16 addr, u8 *data)
 572 {
 573         struct rtl_priv *rtlpriv = rtl_priv(hw);
 574         u8 tmpidx = 0;
 575         int bresult;
 576
 577         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 1,
 578                        (u8) (addr & 0xff));
 579         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2,
 580                        ((u8) ((addr >> 8) & 0x03)) |
 581                        (rtl_read_byte(rtlpriv,
 582                                       rtlpriv->cfg->maps[EFUSE_CTRL] + 2) &
 583                         0xFC));
 584
 585         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3, 0x72);
 586
 587         while (!(0x80 & rtl_read_byte(rtlpriv,
 588                                       rtlpriv->cfg->maps[EFUSE_CTRL] + 3))
 589                && (tmpidx < 100)) {
 590                 tmpidx++;
 591         }
 592
 593         if (tmpidx < 100) {
 594                 *data = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL]);
 595                 bresult = true;
 596         } else {
 597                 *data = 0xff;
 598                 bresult = false;
 599         }
 600         return bresult;
 601 }
 602
 603 static int efuse_one_byte_write(struct ieee80211_hw *hw, u16 addr, u8 data)
 604 {
 605         struct rtl_priv *rtlpriv = rtl_priv(hw);
 606         u8 tmpidx = 0;
 607         bool bresult;
 608
 609         RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD,
 610                  ("Addr = %x Data=%x\n", addr, data));
 611
 612         rtl_write_byte(rtlpriv,
 613                        rtlpriv->cfg->maps[EFUSE_CTRL] + 1, (u8) (addr & 0xff));
 614         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2,
 615                        (rtl_read_byte(rtlpriv,
 616                          rtlpriv->cfg->maps[EFUSE_CTRL] +
 617                          2) & 0xFC) | (u8) ((addr >> 8) & 0x03));
 618
 619         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL], data);
 620         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3, 0xF2);
 621
 622         while ((0x80 & rtl_read_byte(rtlpriv,
 623                                      rtlpriv->cfg->maps[EFUSE_CTRL] + 3))
 624                && (tmpidx < 100)) {
 625                 tmpidx++;
 626         }
 627
 628         if (tmpidx < 100)
 629                 bresult = true;
 630         else
 631                 bresult = false;
 632
 633         return bresult;
 634 }
 635
 636 static void efuse_read_all_map(struct ieee80211_hw *hw, u8 * efuse)
 637 {
 638         efuse_power_switch(hw, false, true);
 639         read_efuse(hw, 0, 128, efuse);
 640         efuse_power_switch(hw, false, false);
 641 }
 642
 643 static void efuse_read_data_case1(struct ieee80211_hw *hw, u16 *efuse_addr,
 644                                 u8 efuse_data, u8 offset, u8 *tmpdata,
 645                                 u8 *readstate)
 646 {
 647         bool bdataempty = true;
 648         u8 hoffset;
 649         u8 tmpidx;
 650         u8 hworden;
 651         u8 word_cnts;
 652
 653         hoffset = (efuse_data >> 4) & 0x0F;
 654         hworden = efuse_data & 0x0F;
 655         word_cnts = efuse_calculate_word_cnts(hworden);
 656
 657         if (hoffset == offset) {
 658                 for (tmpidx = 0; tmpidx < word_cnts * 2; tmpidx++) {
 659                         if (efuse_one_byte_read(hw, *efuse_addr + 1 + tmpidx,
 660                             &efuse_data)) {
 661                                 tmpdata[tmpidx] = efuse_data;
 662                                 if (efuse_data != 0xff)
 663                                         bdataempty = true;
 664                         }
 665                 }
 666
 667                 if (bdataempty == true)
 668                         *readstate = PG_STATE_DATA;
 669                 else {
 670                         *efuse_addr = *efuse_addr + (word_cnts * 2) + 1;
 671                         *readstate = PG_STATE_HEADER;
 672                 }
 673
 674         } else {
 675                 *efuse_addr = *efuse_addr + (word_cnts * 2) + 1;
 676                 *readstate = PG_STATE_HEADER;
 677         }
 678 }
 679
 680 static int efuse_pg_packet_read(struct ieee80211_hw *hw, u8 offset, u8 *data)
 681 {
 682         u8 readstate = PG_STATE_HEADER;
 683
 684         bool bcontinual = true;
 685
 686         u8 efuse_data, word_cnts = 0;
 687         u16 efuse_addr = 0;
 688         u8 hworden = 0;
 689         u8 tmpdata[8];
 690
 691         if (data == NULL)
 692                 return false;
 693         if (offset > 15)
 694                 return false;
 695
 696         memset(data, 0xff, PGPKT_DATA_SIZE * sizeof(u8));
 697         memset(tmpdata, 0xff, PGPKT_DATA_SIZE * sizeof(u8));
 698
 699         while (bcontinual && (efuse_addr < EFUSE_MAX_SIZE)) {
 700                 if (readstate & PG_STATE_HEADER) {
 701                         if (efuse_one_byte_read(hw, efuse_addr, &efuse_data)
 702                             && (efuse_data != 0xFF))
 703                                 efuse_read_data_case1(hw, &efuse_addr,
 704                                                       efuse_data,
 705                                                       offset, tmpdata,
 706                                                       &readstate);
 707                         else
 708                                 bcontinual = false;
 709                 } else if (readstate & PG_STATE_DATA) {
 710                         efuse_word_enable_data_read(hworden, tmpdata, data);
 711                         efuse_addr = efuse_addr + (word_cnts * 2) + 1;
 712                         readstate = PG_STATE_HEADER;
 713                 }
 714
 715         }
 716
 717         if ((data[0] == 0xff) && (data[1] == 0xff) &&
 718             (data[2] == 0xff) && (data[3] == 0xff) &&
 719             (data[4] == 0xff) && (data[5] == 0xff) &&
 720             (data[6] == 0xff) && (data[7] == 0xff))
 721                 return false;
 722         else
 723                 return true;
 724
 725 }
 726
 727 static void efuse_write_data_case1(struct ieee80211_hw *hw, u16 *efuse_addr,
 728                         u8 efuse_data, u8 offset, int *bcontinual,
 729                         u8 *write_state, struct pgpkt_struct *target_pkt,
 730                         int *repeat_times, int *bresult, u8 word_en)
 731 {
 732         struct rtl_priv *rtlpriv = rtl_priv(hw);
 733         struct pgpkt_struct tmp_pkt;
 734         int bdataempty = true;
 735         u8 originaldata[8 * sizeof(u8)];
 736         u8 badworden = 0x0F;
 737         u8 match_word_en, tmp_word_en;
 738         u8 tmpindex;
 739         u8 tmp_header = efuse_data;
 740         u8 tmp_word_cnts;
 741
 742         tmp_pkt.offset = (tmp_header >> 4) & 0x0F;
 743         tmp_pkt.word_en = tmp_header & 0x0F;
 744         tmp_word_cnts = efuse_calculate_word_cnts(tmp_pkt.word_en);
 745
 746         if (tmp_pkt.offset != target_pkt->offset) {
 747                 *efuse_addr = *efuse_addr + (tmp_word_cnts * 2) + 1;
 748                 *write_state = PG_STATE_HEADER;
 749         } else {
 750                 for (tmpindex = 0; tmpindex < (tmp_word_cnts * 2); tmpindex++) {
 751                         u16 address = *efuse_addr + 1 + tmpindex;
 752                         if (efuse_one_byte_read(hw, address,
 753                              &efuse_data) && (efuse_data != 0xFF))
 754                                 bdataempty = false;
 755                 }
 756
 757                 if (bdataempty == false) {
 758                         *efuse_addr = *efuse_addr + (tmp_word_cnts * 2) + 1;
 759                         *write_state = PG_STATE_HEADER;
 760                 } else {
 761                         match_word_en = 0x0F;
 762                         if (!((target_pkt->word_en & BIT(0)) |
 763                              (tmp_pkt.word_en & BIT(0))))
 764                                 match_word_en &= (~BIT(0));
 765
 766                         if (!((target_pkt->word_en & BIT(1)) |
 767                              (tmp_pkt.word_en & BIT(1))))
 768                                 match_word_en &= (~BIT(1));
 769
 770                         if (!((target_pkt->word_en & BIT(2)) |
 771                              (tmp_pkt.word_en & BIT(2))))
 772                                 match_word_en &= (~BIT(2));
 773
 774                         if (!((target_pkt->word_en & BIT(3)) |
 775                              (tmp_pkt.word_en & BIT(3))))
 776                                 match_word_en &= (~BIT(3));
 777
 778                         if ((match_word_en & 0x0F) != 0x0F) {
 779                                 badworden = efuse_word_enable_data_write(
 780                                                             hw, *efuse_addr + 1,
 781                                                             tmp_pkt.word_en,
 782                                                             target_pkt->data);
 783
 784                                 if (0x0F != (badworden & 0x0F)) {
 785                                         u8 reorg_offset = offset;
 786                                         u8 reorg_worden = badworden;
 787                                         efuse_pg_packet_write(hw, reorg_offset,
 788                                                                reorg_worden,
 789                                                                originaldata);
 790                                 }
 791
 792                                 tmp_word_en = 0x0F;
 793                                 if ((target_pkt->word_en & BIT(0)) ^
 794                                     (match_word_en & BIT(0)))
 795                                         tmp_word_en &= (~BIT(0));
 796
 797                                 if ((target_pkt->word_en & BIT(1)) ^
 798                                     (match_word_en & BIT(1)))
 799                                         tmp_word_en &= (~BIT(1));
 800
 801                                 if ((target_pkt->word_en & BIT(2)) ^
 802                                         (match_word_en & BIT(2)))
 803                                         tmp_word_en &= (~BIT(2));
 804
 805                                 if ((target_pkt->word_en & BIT(3)) ^
 806                                     (match_word_en & BIT(3)))
 807                                         tmp_word_en &= (~BIT(3));
 808
 809                                 if ((tmp_word_en & 0x0F) != 0x0F) {
 810                                         *efuse_addr = efuse_get_current_size(hw);
 811                                         target_pkt->offset = offset;
 812                                         target_pkt->word_en = tmp_word_en;
 813                                 } else
 814                                         *bcontinual = false;
 815                                 *write_state = PG_STATE_HEADER;
 816                                 *repeat_times += 1;
 817                                 if (*repeat_times > EFUSE_REPEAT_THRESHOLD_) {
 818                                         *bcontinual = false;
 819                                         *bresult = false;
 820                                 }
 821                         } else {
 822                                 *efuse_addr += (2 * tmp_word_cnts) + 1;
 823                                 target_pkt->offset = offset;
 824                                 target_pkt->word_en = word_en;
 825                                 *write_state = PG_STATE_HEADER;
 826                         }
 827                 }
 828         }
 829         RTPRINT(rtlpriv, FEEPROM, EFUSE_PG, ("efuse PG_STATE_HEADER-1\n"));
 830 }
 831
 832 static void efuse_write_data_case2(struct ieee80211_hw *hw, u16 *efuse_addr,
 833                                    int *bcontinual, u8 *write_state,
 834                                    struct pgpkt_struct target_pkt,
 835                                    int *repeat_times, int *bresult)
 836 {
 837         struct rtl_priv *rtlpriv = rtl_priv(hw);
 838         struct pgpkt_struct tmp_pkt;
 839         u8 pg_header;
 840         u8 tmp_header;
 841         u8 originaldata[8 * sizeof(u8)];
 842         u8 tmp_word_cnts;
 843         u8 badworden = 0x0F;
 844
 845         pg_header = ((target_pkt.offset << 4) & 0xf0) | target_pkt.word_en;
 846         efuse_one_byte_write(hw, *efuse_addr, pg_header);
 847         efuse_one_byte_read(hw, *efuse_addr, &tmp_header);
 848
 849         if (tmp_header == pg_header)
 850                 *write_state = PG_STATE_DATA;
 851         else if (tmp_header == 0xFF) {
 852                 *write_state = PG_STATE_HEADER;
 853                 *repeat_times += 1;
 854                 if (*repeat_times > EFUSE_REPEAT_THRESHOLD_) {
 855                         *bcontinual = false;
 856                         *bresult = false;
 857                 }
 858         } else {
 859                 tmp_pkt.offset = (tmp_header >> 4) & 0x0F;
 860                 tmp_pkt.word_en = tmp_header & 0x0F;
 861
 862                 tmp_word_cnts = efuse_calculate_word_cnts(tmp_pkt.word_en);
 863
 864                 memset(originaldata, 0xff, 8 * sizeof(u8));
 865
 866                 if (efuse_pg_packet_read(hw, tmp_pkt.offset, originaldata)) {
 867                         badworden = efuse_word_enable_data_write(hw,
 868                                     *efuse_addr + 1, tmp_pkt.word_en,
 869                                     originaldata);
 870
 871                         if (0x0F != (badworden & 0x0F)) {
 872                                 u8 reorg_offset = tmp_pkt.offset;
 873                                 u8 reorg_worden = badworden;
 874                                 efuse_pg_packet_write(hw, reorg_offset,
 875                                                       reorg_worden,
 876                                                       originaldata);
 877                                 *efuse_addr = efuse_get_current_size(hw);
 878                          } else
 879                                 *efuse_addr = *efuse_addr + (tmp_word_cnts * 2)
 880                                               + 1;
 881                 } else
 882                         *efuse_addr = *efuse_addr + (tmp_word_cnts * 2) + 1;
 883
 884                 *write_state = PG_STATE_HEADER;
 885                 *repeat_times += 1;
 886                 if (*repeat_times > EFUSE_REPEAT_THRESHOLD_) {
 887                         *bcontinual = false;
 888                         *bresult = false;
 889                 }
 890
 891                 RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,
 892                         ("efuse PG_STATE_HEADER-2\n"));
 893         }
 894 }
 895
 896 static int efuse_pg_packet_write(struct ieee80211_hw *hw,
 897                                  u8 offset, u8 word_en, u8 *data)
 898 {
 899         struct rtl_priv *rtlpriv = rtl_priv(hw);
 900         struct pgpkt_struct target_pkt;
 901         u8 write_state = PG_STATE_HEADER;
 902         int bcontinual = true, bdataempty = true, bresult = true;
 903         u16 efuse_addr = 0;
 904         u8 efuse_data;
 905         u8 target_word_cnts = 0;
 906         u8 badworden = 0x0F;
 907         static int repeat_times;
 908
 909         if (efuse_get_current_size(hw) >=
 910             (EFUSE_MAX_SIZE - EFUSE_OOB_PROTECT_BYTES)) {
 911                 RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,
 912                         ("efuse_pg_packet_write error\n"));
 913                 return false;
 914         }
 915
 916         target_pkt.offset = offset;
 917         target_pkt.word_en = word_en;
 918
 919         memset(target_pkt.data, 0xFF, 8 * sizeof(u8));
 920
 921         efuse_word_enable_data_read(word_en, data, target_pkt.data);
 922         target_word_cnts = efuse_calculate_word_cnts(target_pkt.word_en);
 923
 924         RTPRINT(rtlpriv, FEEPROM, EFUSE_PG, ("efuse Power ON\n"));
 925
 926         while (bcontinual && (efuse_addr <
 927                (EFUSE_MAX_SIZE - EFUSE_OOB_PROTECT_BYTES))) {
 928
 929                 if (write_state == PG_STATE_HEADER) {
 930                         bdataempty = true;
 931                         badworden = 0x0F;
 932                         RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,
 933                                 ("efuse PG_STATE_HEADER\n"));
 934
 935                         if (efuse_one_byte_read(hw, efuse_addr, &efuse_data) &&
 936                             (efuse_data != 0xFF))
 937                                 efuse_write_data_case1(hw, &efuse_addr,
 938                                                        efuse_data, offset,
 939                                                        &bcontinual,
 940                                                        &write_state, &target_pkt,
 941                                                        &repeat_times, &bresult,
 942                                                        word_en);
 943                         else
 944                                 efuse_write_data_case2(hw, &efuse_addr,
 945                                                        &bcontinual,
 946                                                        &write_state,
 947                                                        target_pkt,
 948                                                        &repeat_times,
 949                                                        &bresult);
 950
 951                 } else if (write_state == PG_STATE_DATA) {
 952                         RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,
 953                                 ("efuse PG_STATE_DATA\n"));
 954                         badworden = 0x0f;
 955                         badworden =
 956                             efuse_word_enable_data_write(hw, efuse_addr + 1,
 957                                                          target_pkt.word_en,
 958                                                          target_pkt.data);
 959
 960                         if ((badworden & 0x0F) == 0x0F) {
 961                                 bcontinual = false;
 962                         } else {
 963                                 efuse_addr =
 964                                     efuse_addr + (2 * target_word_cnts) + 1;
 965
 966                                 target_pkt.offset = offset;
 967                                 target_pkt.word_en = badworden;
 968                                 target_word_cnts =
 969                                     efuse_calculate_word_cnts(target_pkt.
 970                                                               word_en);
 971                                 write_state = PG_STATE_HEADER;
 972                                 repeat_times++;
 973                                 if (repeat_times > EFUSE_REPEAT_THRESHOLD_) {
 974                                         bcontinual = false;
 975                                         bresult = false;
 976                                 }
 977                                 RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,
 978                                         ("efuse PG_STATE_HEADER-3\n"));
 979                         }
 980                 }
 981         }
 982
 983         if (efuse_addr >= (EFUSE_MAX_SIZE - EFUSE_OOB_PROTECT_BYTES)) {
 984                 RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD,
 985                          ("efuse_addr(%#x) Out of size!!\n", efuse_addr));
 986         }
 987
 988         return true;
 989 }
 990
 991 static void efuse_word_enable_data_read(u8 word_en,
 992                                         u8 *sourdata, u8 *targetdata)
 993 {
 994         if (!(word_en & BIT(0))) {
 995                 targetdata[0] = sourdata[0];
 996                 targetdata[1] = sourdata[1];
 997         }
 998
 999         if (!(word_en & BIT(1))) {
1000                 targetdata[2] = sourdata[2];
1001                 targetdata[3] = sourdata[3];
1002         }
1003
1004         if (!(word_en & BIT(2))) {
1005                 targetdata[4] = sourdata[4];
1006                 targetdata[5] = sourdata[5];
1007         }
1008
1009         if (!(word_en & BIT(3))) {
1010                 targetdata[6] = sourdata[6];
1011                 targetdata[7] = sourdata[7];
1012         }
1013 }
1014
1015 static u8 efuse_word_enable_data_write(struct ieee80211_hw *hw,
1016                                        u16 efuse_addr, u8 word_en, u8 *data)
1017 {
1018         struct rtl_priv *rtlpriv = rtl_priv(hw);
1019         u16 tmpaddr;
1020         u16 start_addr = efuse_addr;
1021         u8 badworden = 0x0F;
1022         u8 tmpdata[8];
1023
1024         memset(tmpdata, 0xff, PGPKT_DATA_SIZE);
1025         RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD,
1026                  ("word_en = %x efuse_addr=%x\n", word_en, efuse_addr));
1027
1028         if (!(word_en & BIT(0))) {
1029                 tmpaddr = start_addr;
1030                 efuse_one_byte_write(hw, start_addr++, data[0]);
1031                 efuse_one_byte_write(hw, start_addr++, data[1]);
1032
1033                 efuse_one_byte_read(hw, tmpaddr, &tmpdata[0]);
1034                 efuse_one_byte_read(hw, tmpaddr + 1, &tmpdata[1]);
1035                 if ((data[0] != tmpdata[0]) || (data[1] != tmpdata[1]))
1036                         badworden &= (~BIT(0));
1037         }
1038
1039         if (!(word_en & BIT(1))) {
1040                 tmpaddr = start_addr;
1041                 efuse_one_byte_write(hw, start_addr++, data[2]);
1042                 efuse_one_byte_write(hw, start_addr++, data[3]);
1043
1044                 efuse_one_byte_read(hw, tmpaddr, &tmpdata[2]);
1045                 efuse_one_byte_read(hw, tmpaddr + 1, &tmpdata[3]);
1046                 if ((data[2] != tmpdata[2]) || (data[3] != tmpdata[3]))
1047                         badworden &= (~BIT(1));
1048         }
1049
1050         if (!(word_en & BIT(2))) {
1051                 tmpaddr = start_addr;
1052                 efuse_one_byte_write(hw, start_addr++, data[4]);
1053                 efuse_one_byte_write(hw, start_addr++, data[5]);
1054
1055                 efuse_one_byte_read(hw, tmpaddr, &tmpdata[4]);
1056                 efuse_one_byte_read(hw, tmpaddr + 1, &tmpdata[5]);
1057                 if ((data[4] != tmpdata[4]) || (data[5] != tmpdata[5]))
1058                         badworden &= (~BIT(2));
1059         }
1060
1061         if (!(word_en & BIT(3))) {
1062                 tmpaddr = start_addr;
1063                 efuse_one_byte_write(hw, start_addr++, data[6]);
1064                 efuse_one_byte_write(hw, start_addr++, data[7]);
1065
1066                 efuse_one_byte_read(hw, tmpaddr, &tmpdata[6]);
1067                 efuse_one_byte_read(hw, tmpaddr + 1, &tmpdata[7]);
1068                 if ((data[6] != tmpdata[6]) || (data[7] != tmpdata[7]))
1069                         badworden &= (~BIT(3));
1070         }
1071
1072         return badworden;
1073 }
1074
1075 static void efuse_power_switch(struct ieee80211_hw *hw, u8 bwrite, u8 pwrstate)
1076 {
1077         struct rtl_priv *rtlpriv = rtl_priv(hw);
1078         u8 tempval;
1079         u16 tmpV16;
1080
1081         if (pwrstate == true) {
1082                 tmpV16 = rtl_read_word(rtlpriv,
1083                                        rtlpriv->cfg->maps[SYS_ISO_CTRL]);
1084                 if (!(tmpV16 & rtlpriv->cfg->maps[EFUSE_PWC_EV12V])) {
1085                         tmpV16 |= rtlpriv->cfg->maps[EFUSE_PWC_EV12V];
1086                         rtl_write_word(rtlpriv,
1087                                        rtlpriv->cfg->maps[SYS_ISO_CTRL],
1088                                        tmpV16);
1089                 }
1090
1091                 tmpV16 = rtl_read_word(rtlpriv,
1092                                        rtlpriv->cfg->maps[SYS_FUNC_EN]);
1093                 if (!(tmpV16 & rtlpriv->cfg->maps[EFUSE_FEN_ELDR])) {
1094                         tmpV16 |= rtlpriv->cfg->maps[EFUSE_FEN_ELDR];
1095                         rtl_write_word(rtlpriv,
1096                                        rtlpriv->cfg->maps[SYS_FUNC_EN], tmpV16);
1097                 }
1098
1099                 tmpV16 = rtl_read_word(rtlpriv, rtlpriv->cfg->maps[SYS_CLK]);
1100                 if ((!(tmpV16 & rtlpriv->cfg->maps[EFUSE_LOADER_CLK_EN])) ||
1101                     (!(tmpV16 & rtlpriv->cfg->maps[EFUSE_ANA8M]))) {
1102                         tmpV16 |= (rtlpriv->cfg->maps[EFUSE_LOADER_CLK_EN] |
1103                                    rtlpriv->cfg->maps[EFUSE_ANA8M]);
1104                         rtl_write_word(rtlpriv,
1105                                        rtlpriv->cfg->maps[SYS_CLK], tmpV16);
1106                 }
1107         }
1108
1109         if (pwrstate == true) {
1110                 if (bwrite == true) {
1111                         tempval = rtl_read_byte(rtlpriv,
1112                                                 rtlpriv->cfg->maps[EFUSE_TEST] +
1113                                                 3);
1114                         tempval &= 0x0F;
1115                         tempval |= (VOLTAGE_V25 << 4);
1116                         rtl_write_byte(rtlpriv,
1117                                        rtlpriv->cfg->maps[EFUSE_TEST] + 3,
1118                                        (tempval | 0x80));
1119                 }
1120
1121         } else {
1122                 if (bwrite == true) {
1123                         tempval = rtl_read_byte(rtlpriv,
1124                                                 rtlpriv->cfg->maps[EFUSE_TEST] +
1125                                                 3);
1126                         rtl_write_byte(rtlpriv,
1127                                        rtlpriv->cfg->maps[EFUSE_TEST] + 3,
1128                                        (tempval & 0x7F));
1129                 }
1130
1131         }
1132
1133 }
1134
1135 static u16 efuse_get_current_size(struct ieee80211_hw *hw)
1136 {
1137         int bcontinual = true;
1138         u16 efuse_addr = 0;
1139         u8 hoffset, hworden;
1140         u8 efuse_data, word_cnts;
1141
1142         while (bcontinual && efuse_one_byte_read(hw, efuse_addr, &efuse_data)
1143                && (efuse_addr < EFUSE_MAX_SIZE)) {
1144                 if (efuse_data != 0xFF) {
1145                         hoffset = (efuse_data >> 4) & 0x0F;
1146                         hworden = efuse_data & 0x0F;
1147                         word_cnts = efuse_calculate_word_cnts(hworden);
1148                         efuse_addr = efuse_addr + (word_cnts * 2) + 1;
1149                 } else {
1150                         bcontinual = false;
1151                 }
1152         }
1153
1154         return efuse_addr;
1155 }
1156
1157 static u8 efuse_calculate_word_cnts(u8 word_en)
1158 {
1159         u8 word_cnts = 0;
1160         if (!(word_en & BIT(0)))
1161                 word_cnts++;
1162         if (!(word_en & BIT(1)))
1163                 word_cnts++;
1164         if (!(word_en & BIT(2)))
1165                 word_cnts++;
1166         if (!(word_en & BIT(3)))
1167                 word_cnts++;
1168         return word_cnts;
1169 }
1170