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 <linux/export.h>
  31 #include "wifi.h"
  32 #include "efuse.h"
  33
  34 static const u8 MAX_PGPKT_SIZE = 9;
  35 static const u8 PGPKT_DATA_SIZE = 8;
  36 static const int EFUSE_MAX_SIZE = 512;
  37
  38 static const u8 EFUSE_OOB_PROTECT_BYTES = 15;
  39
  40 static const struct efuse_map RTL8712_SDIO_EFUSE_TABLE[] = {
  41         {0, 0, 0, 2},
  42         {0, 1, 0, 2},
  43         {0, 2, 0, 2},
  44         {1, 0, 0, 1},
  45         {1, 0, 1, 1},
  46         {1, 1, 0, 1},
  47         {1, 1, 1, 3},
  48         {1, 3, 0, 17},
  49         {3, 3, 1, 48},
  50         {10, 0, 0, 6},
  51         {10, 3, 0, 1},
  52         {10, 3, 1, 1},
  53         {11, 0, 0, 28}
  54 };
  55
  56 static void efuse_shadow_read_1byte(struct ieee80211_hw *hw, u16 offset,
  57                                     u8 *value);
  58 static void efuse_shadow_read_2byte(struct ieee80211_hw *hw, u16 offset,
  59                                     u16 *value);
  60 static void efuse_shadow_read_4byte(struct ieee80211_hw *hw, u16 offset,
  61                                     u32 *value);
  62 static void efuse_shadow_write_1byte(struct ieee80211_hw *hw, u16 offset,
  63                                      u8 value);
  64 static void efuse_shadow_write_2byte(struct ieee80211_hw *hw, u16 offset,
  65                                      u16 value);
  66 static void efuse_shadow_write_4byte(struct ieee80211_hw *hw, u16 offset,
  67                                      u32 value);
  68 static int efuse_one_byte_read(struct ieee80211_hw *hw, u16 addr,
  69                                         u8 *data);
  70 static int efuse_one_byte_write(struct ieee80211_hw *hw, u16 addr,
  71                                         u8 data);
  72 static void efuse_read_all_map(struct ieee80211_hw *hw, u8 *efuse);
  73 static int efuse_pg_packet_read(struct ieee80211_hw *hw, u8 offset,
  74                                         u8 *data);
  75 static int efuse_pg_packet_write(struct ieee80211_hw *hw, u8 offset,
  76                                  u8 word_en, u8 *data);
  77 static void efuse_word_enable_data_read(u8 word_en, u8 *sourdata,
  78                                         u8 *targetdata);
  79 static u8 efuse_word_enable_data_write(struct ieee80211_hw *hw,
  80                                        u16 efuse_addr, u8 word_en, u8 *data);
  81 static void efuse_power_switch(struct ieee80211_hw *hw, u8 write,
  82                                         u8 pwrstate);
  83 static u16 efuse_get_current_size(struct ieee80211_hw *hw);
  84 static u8 efuse_calculate_word_cnts(u8 word_en);
  85
  86 void efuse_initialize(struct ieee80211_hw *hw)
  87 {
  88         struct rtl_priv *rtlpriv = rtl_priv(hw);
  89         u8 bytetemp;
  90         u8 temp;
  91
  92         bytetemp = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[SYS_FUNC_EN] + 1);
  93         temp = bytetemp | 0x20;
  94         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[SYS_FUNC_EN] + 1, temp);
  95
  96         bytetemp = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[SYS_ISO_CTRL] + 1);
  97         temp = bytetemp & 0xFE;
  98         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[SYS_ISO_CTRL] + 1, temp);
  99
 100         bytetemp = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_TEST] + 3);
 101         temp = bytetemp | 0x80;
 102         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_TEST] + 3, temp);
 103
 104         rtl_write_byte(rtlpriv, 0x2F8, 0x3);
 105
 106         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3, 0x72);
 107
 108 }
 109
 110 u8 efuse_read_1byte(struct ieee80211_hw *hw, u16 address)
 111 {
 112         struct rtl_priv *rtlpriv = rtl_priv(hw);
 113         u8 data;
 114         u8 bytetemp;
 115         u8 temp;
 116         u32 k = 0;
 117         const u32 efuse_len =
 118                 rtlpriv->cfg->maps[EFUSE_REAL_CONTENT_SIZE];
 119
 120         if (address < efuse_len) {
 121                 temp = address & 0xFF;
 122                 rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 1,
 123                                temp);
 124                 bytetemp = rtl_read_byte(rtlpriv,
 125                                          rtlpriv->cfg->maps[EFUSE_CTRL] + 2);
 126                 temp = ((address >> 8) & 0x03) | (bytetemp & 0xFC);
 127                 rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2,
 128                                temp);
 129
 130                 bytetemp = rtl_read_byte(rtlpriv,
 131                                          rtlpriv->cfg->maps[EFUSE_CTRL] + 3);
 132                 temp = bytetemp & 0x7F;
 133                 rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3,
 134                                temp);
 135
 136                 bytetemp = rtl_read_byte(rtlpriv,
 137                                          rtlpriv->cfg->maps[EFUSE_CTRL] + 3);
 138                 while (!(bytetemp & 0x80)) {
 139                         bytetemp = rtl_read_byte(rtlpriv,
 140                                                  rtlpriv->cfg->
 141                                                  maps[EFUSE_CTRL] + 3);
 142                         k++;
 143                         if (k == 1000) {
 144                                 k = 0;
 145                                 break;
 146                         }
 147                 }
 148                 data = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL]);
 149                 return data;
 150         } else
 151                 return 0xFF;
 152
 153 }
 154 EXPORT_SYMBOL(efuse_read_1byte);
 155
 156 void efuse_write_1byte(struct ieee80211_hw *hw, u16 address, u8 value)
 157 {
 158         struct rtl_priv *rtlpriv = rtl_priv(hw);
 159         u8 bytetemp;
 160         u8 temp;
 161         u32 k = 0;
 162         const u32 efuse_len =
 163                 rtlpriv->cfg->maps[EFUSE_REAL_CONTENT_SIZE];
 164
 165         RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD,
 166                  ("Addr=%x Data =%x\n", address, value));
 167
 168         if (address < efuse_len) {
 169                 rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL], value);
 170
 171                 temp = address & 0xFF;
 172                 rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 1,
 173                                temp);
 174                 bytetemp = rtl_read_byte(rtlpriv,
 175                                          rtlpriv->cfg->maps[EFUSE_CTRL] + 2);
 176
 177                 temp = ((address >> 8) & 0x03) | (bytetemp & 0xFC);
 178                 rtl_write_byte(rtlpriv,
 179                                rtlpriv->cfg->maps[EFUSE_CTRL] + 2, temp);
 180
 181                 bytetemp = rtl_read_byte(rtlpriv,
 182                                          rtlpriv->cfg->maps[EFUSE_CTRL] + 3);
 183                 temp = bytetemp | 0x80;
 184                 rtl_write_byte(rtlpriv,
 185                                rtlpriv->cfg->maps[EFUSE_CTRL] + 3, temp);
 186
 187                 bytetemp = rtl_read_byte(rtlpriv,
 188                                          rtlpriv->cfg->maps[EFUSE_CTRL] + 3);
 189
 190                 while (bytetemp & 0x80) {
 191                         bytetemp = rtl_read_byte(rtlpriv,
 192                                                  rtlpriv->cfg->
 193                                                  maps[EFUSE_CTRL] + 3);
 194                         k++;
 195                         if (k == 100) {
 196                                 k = 0;
 197                                 break;
 198                         }
 199                 }
 200         }
 201
 202 }
 203
 204 void read_efuse_byte(struct ieee80211_hw *hw, u16 _offset, u8 *pbuf)
 205 {
 206         struct rtl_priv *rtlpriv = rtl_priv(hw);
 207         u32 value32;
 208         u8 readbyte;
 209         u16 retry;
 210
 211         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 1,
 212                        (_offset & 0xff));
 213         readbyte = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2);
 214         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2,
 215                        ((_offset >> 8) & 0x03) | (readbyte & 0xfc));
 216
 217         readbyte = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3);
 218         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3,
 219                        (readbyte & 0x7f));
 220
 221         retry = 0;
 222         value32 = rtl_read_dword(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL]);
 223         while (!(((value32 >> 24) & 0xff) & 0x80) && (retry < 10000)) {
 224                 value32 = rtl_read_dword(rtlpriv,
 225                                          rtlpriv->cfg->maps[EFUSE_CTRL]);
 226                 retry++;
 227         }
 228
 229         udelay(50);
 230         value32 = rtl_read_dword(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL]);
 231
 232         *pbuf = (u8) (value32 & 0xff);
 233 }
 234
 235 void read_efuse(struct ieee80211_hw *hw, u16 _offset, u16 _size_byte, u8 *pbuf)
 236 {
 237         struct rtl_priv *rtlpriv = rtl_priv(hw);
 238         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 239         u8 *efuse_tbl;
 240         u8 rtemp8[1];
 241         u16 efuse_addr = 0;
 242         u8 offset, wren;
 243         u16 i;
 244         u16 j;
 245         const u16 efuse_max_section =
 246                 rtlpriv->cfg->maps[EFUSE_MAX_SECTION_MAP];
 247         const u32 efuse_len =
 248                 rtlpriv->cfg->maps[EFUSE_REAL_CONTENT_SIZE];
 249         u16 **efuse_word;
 250         u16 efuse_utilized = 0;
 251         u8 efuse_usage;
 252
 253         if ((_offset + _size_byte) > rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]) {
 254                 RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD,
 255                          ("read_efuse(): Invalid offset(%#x) with read "
 256                           "bytes(%#x)!!\n", _offset, _size_byte));
 257                 return;
 258         }
 259
 260         /* allocate memory for efuse_tbl and efuse_word */
 261         efuse_tbl = kmalloc(rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE] *
 262                             sizeof(u8), GFP_ATOMIC);
 263         if (!efuse_tbl)
 264                 return;
 265         efuse_word = kmalloc(EFUSE_MAX_WORD_UNIT * sizeof(u16 *), GFP_ATOMIC);
 266         if (!efuse_word)
 267                 goto done;
 268         for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++) {
 269                 efuse_word[i] = kmalloc(efuse_max_section * sizeof(u16),
 270                                         GFP_ATOMIC);
 271                 if (!efuse_word[i])
 272                         goto done;
 273         }
 274
 275         for (i = 0; i < efuse_max_section; i++)
 276                 for (j = 0; j < EFUSE_MAX_WORD_UNIT; j++)
 277                         efuse_word[j][i] = 0xFFFF;
 278
 279         read_efuse_byte(hw, efuse_addr, rtemp8);
 280         if (*rtemp8 != 0xFF) {
 281                 efuse_utilized++;
 282                 RTPRINT(rtlpriv, FEEPROM, EFUSE_READ_ALL,
 283                         ("Addr=%d\n", efuse_addr));
 284                 efuse_addr++;
 285         }
 286
 287         while ((*rtemp8 != 0xFF) && (efuse_addr < efuse_len)) {
 288                 offset = ((*rtemp8 >> 4) & 0x0f);
 289
 290                 if (offset < efuse_max_section) {
 291                         wren = (*rtemp8 & 0x0f);
 292                         RTPRINT(rtlpriv, FEEPROM, EFUSE_READ_ALL,
 293                                 ("offset-%d Worden=%x\n", offset, wren));
 294
 295                         for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++) {
 296                                 if (!(wren & 0x01)) {
 297                                         RTPRINT(rtlpriv, FEEPROM,
 298                                                 EFUSE_READ_ALL, ("Addr=%d\n",
 299                                                                  efuse_addr));
 300
 301                                         read_efuse_byte(hw, efuse_addr, rtemp8);
 302                                         efuse_addr++;
 303                                         efuse_utilized++;
 304                                         efuse_word[i][offset] =
 305                                                          (*rtemp8 & 0xff);
 306
 307                                         if (efuse_addr >= efuse_len)
 308                                                 break;
 309
 310                                         RTPRINT(rtlpriv, FEEPROM,
 311                                                 EFUSE_READ_ALL, ("Addr=%d\n",
 312                                                                  efuse_addr));
 313
 314                                         read_efuse_byte(hw, efuse_addr, rtemp8);
 315                                         efuse_addr++;
 316                                         efuse_utilized++;
 317                                         efuse_word[i][offset] |=
 318                                             (((u16)*rtemp8 << 8) & 0xff00);
 319
 320                                         if (efuse_addr >= efuse_len)
 321                                                 break;
 322                                 }
 323
 324                                 wren >>= 1;
 325                         }
 326                 }
 327
 328                 RTPRINT(rtlpriv, FEEPROM, EFUSE_READ_ALL,
 329                         ("Addr=%d\n", efuse_addr));
 330                 read_efuse_byte(hw, efuse_addr, rtemp8);
 331                 if (*rtemp8 != 0xFF && (efuse_addr < efuse_len)) {
 332                         efuse_utilized++;
 333                         efuse_addr++;
 334                 }
 335         }
 336
 337         for (i = 0; i < efuse_max_section; i++) {
 338                 for (j = 0; j < EFUSE_MAX_WORD_UNIT; j++) {
 339                         efuse_tbl[(i * 8) + (j * 2)] =
 340                             (efuse_word[j][i] & 0xff);
 341                         efuse_tbl[(i * 8) + ((j * 2) + 1)] =
 342                             ((efuse_word[j][i] >> 8) & 0xff);
 343                 }
 344         }
 345
 346         for (i = 0; i < _size_byte; i++)
 347                 pbuf[i] = efuse_tbl[_offset + i];
 348
 349         rtlefuse->efuse_usedbytes = efuse_utilized;
 350         efuse_usage = (u8) ((efuse_utilized * 100) / efuse_len);
 351         rtlefuse->efuse_usedpercentage = efuse_usage;
 352         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_EFUSE_BYTES,
 353                                       (u8 *)&efuse_utilized);
 354         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_EFUSE_USAGE,
 355                                       (u8 *)&efuse_usage);
 356 done:
 357         for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++)
 358                 kfree(efuse_word[i]);
 359         kfree(efuse_word);
 360         kfree(efuse_tbl);
 361 }
 362
 363 bool efuse_shadow_update_chk(struct ieee80211_hw *hw)
 364 {
 365         struct rtl_priv *rtlpriv = rtl_priv(hw);
 366         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 367         u8 section_idx, i, Base;
 368         u16 words_need = 0, hdr_num = 0, totalbytes, efuse_used;
 369         bool wordchanged, result = true;
 370
 371         for (section_idx = 0; section_idx < 16; section_idx++) {
 372                 Base = section_idx * 8;
 373                 wordchanged = false;
 374
 375                 for (i = 0; i < 8; i = i + 2) {
 376                         if ((rtlefuse->efuse_map[EFUSE_INIT_MAP][Base + i] !=
 377                              rtlefuse->efuse_map[EFUSE_MODIFY_MAP][Base + i]) ||
 378                             (rtlefuse->efuse_map[EFUSE_INIT_MAP][Base + i + 1] !=
 379                              rtlefuse->efuse_map[EFUSE_MODIFY_MAP][Base + i +
 380                                                                    1])) {
 381                                 words_need++;
 382                                 wordchanged = true;
 383                         }
 384                 }
 385
 386                 if (wordchanged)
 387                         hdr_num++;
 388         }
 389
 390         totalbytes = hdr_num + words_need * 2;
 391         efuse_used = rtlefuse->efuse_usedbytes;
 392
 393         if ((totalbytes + efuse_used) >=
 394             (EFUSE_MAX_SIZE - EFUSE_OOB_PROTECT_BYTES))
 395                 result = false;
 396
 397         RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD,
 398                  ("efuse_shadow_update_chk(): totalbytes(%#x), "
 399                   "hdr_num(%#x), words_need(%#x), efuse_used(%d)\n",
 400                   totalbytes, hdr_num, words_need, efuse_used));
 401
 402         return result;
 403 }
 404
 405 void efuse_shadow_read(struct ieee80211_hw *hw, u8 type,
 406                        u16 offset, u32 *value)
 407 {
 408         if (type == 1)
 409                 efuse_shadow_read_1byte(hw, offset, (u8 *) value);
 410         else if (type == 2)
 411                 efuse_shadow_read_2byte(hw, offset, (u16 *) value);
 412         else if (type == 4)
 413                 efuse_shadow_read_4byte(hw, offset, (u32 *) value);
 414
 415 }
 416
 417 void efuse_shadow_write(struct ieee80211_hw *hw, u8 type, u16 offset,
 418                                 u32 value)
 419 {
 420         if (type == 1)
 421                 efuse_shadow_write_1byte(hw, offset, (u8) value);
 422         else if (type == 2)
 423                 efuse_shadow_write_2byte(hw, offset, (u16) value);
 424         else if (type == 4)
 425                 efuse_shadow_write_4byte(hw, offset, value);
 426
 427 }
 428
 429 bool efuse_shadow_update(struct ieee80211_hw *hw)
 430 {
 431         struct rtl_priv *rtlpriv = rtl_priv(hw);
 432         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 433         u16 i, offset, base;
 434         u8 word_en = 0x0F;
 435         u8 first_pg = false;
 436
 437         RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD, ("--->\n"));
 438
 439         if (!efuse_shadow_update_chk(hw)) {
 440                 efuse_read_all_map(hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0]);
 441                 memcpy(&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
 442                        &rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
 443                        rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]);
 444
 445                 RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD,
 446                          ("<---efuse out of capacity!!\n"));
 447                 return false;
 448         }
 449         efuse_power_switch(hw, true, true);
 450
 451         for (offset = 0; offset < 16; offset++) {
 452
 453                 word_en = 0x0F;
 454                 base = offset * 8;
 455
 456                 for (i = 0; i < 8; i++) {
 457                         if (first_pg) {
 458
 459                                 word_en &= ~(BIT(i / 2));
 460
 461                                 rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i] =
 462                                     rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i];
 463                         } else {
 464
 465                                 if (rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i] !=
 466                                     rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i]) {
 467                                         word_en &= ~(BIT(i / 2));
 468
 469                                         rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i] =
 470                                             rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i];
 471                                 }
 472                         }
 473                 }
 474
 475                 if (word_en != 0x0F) {
 476                         u8 tmpdata[8];
 477                         memcpy(tmpdata,
 478                                &rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base],
 479                                8);
 480                         RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_LOUD,
 481                                       ("U-efuse\n"), tmpdata, 8);
 482
 483                         if (!efuse_pg_packet_write(hw, (u8) offset, word_en,
 484                                                    tmpdata)) {
 485                                 RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 486                                          ("PG section(%#x) fail!!\n", offset));
 487                                 break;
 488                         }
 489                 }
 490
 491         }
 492
 493         efuse_power_switch(hw, true, false);
 494         efuse_read_all_map(hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0]);
 495
 496         memcpy(&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
 497                &rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
 498                rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]);
 499
 500         RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD, ("<---\n"));
 501         return true;
 502 }
 503
 504 void rtl_efuse_shadow_map_update(struct ieee80211_hw *hw)
 505 {
 506         struct rtl_priv *rtlpriv = rtl_priv(hw);
 507         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 508
 509         if (rtlefuse->autoload_failflag)
 510                 memset(&rtlefuse->efuse_map[EFUSE_INIT_MAP][0], 0xFF,
 511                         rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]);
 512         else
 513                 efuse_read_all_map(hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0]);
 514
 515         memcpy(&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
 516                &rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
 517                rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]);
 518
 519 }
 520 EXPORT_SYMBOL(rtl_efuse_shadow_map_update);
 521
 522 void efuse_force_write_vendor_Id(struct ieee80211_hw *hw)
 523 {
 524         u8 tmpdata[8] = { 0xFF, 0xFF, 0xEC, 0x10, 0xFF, 0xFF, 0xFF, 0xFF };
 525
 526         efuse_power_switch(hw, true, true);
 527
 528         efuse_pg_packet_write(hw, 1, 0xD, tmpdata);
 529
 530         efuse_power_switch(hw, true, false);
 531
 532 }
 533
 534 void efuse_re_pg_section(struct ieee80211_hw *hw, u8 section_idx)
 535 {
 536 }
 537
 538 static void efuse_shadow_read_1byte(struct ieee80211_hw *hw,
 539                                     u16 offset, u8 *value)
 540 {
 541         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 542         *value = rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset];
 543 }
 544
 545 static void efuse_shadow_read_2byte(struct ieee80211_hw *hw,
 546                                     u16 offset, u16 *value)
 547 {
 548         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 549
 550         *value = rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset];
 551         *value |= rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 1] << 8;
 552
 553 }
 554
 555 static void efuse_shadow_read_4byte(struct ieee80211_hw *hw,
 556                                     u16 offset, u32 *value)
 557 {
 558         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 559
 560         *value = rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset];
 561         *value |= rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 1] << 8;
 562         *value |= rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 2] << 16;
 563         *value |= rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 3] << 24;
 564 }
 565
 566 static void efuse_shadow_write_1byte(struct ieee80211_hw *hw,
 567                                      u16 offset, u8 value)
 568 {
 569         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 570
 571         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset] = value;
 572 }
 573
 574 static void efuse_shadow_write_2byte(struct ieee80211_hw *hw,
 575                                      u16 offset, u16 value)
 576 {
 577         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 578
 579         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset] = value & 0x00FF;
 580         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 1] = value >> 8;
 581
 582 }
 583
 584 static void efuse_shadow_write_4byte(struct ieee80211_hw *hw,
 585                                      u16 offset, u32 value)
 586 {
 587         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 588
 589         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset] =
 590             (u8) (value & 0x000000FF);
 591         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 1] =
 592             (u8) ((value >> 8) & 0x0000FF);
 593         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 2] =
 594             (u8) ((value >> 16) & 0x00FF);
 595         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 3] =
 596             (u8) ((value >> 24) & 0xFF);
 597
 598 }
 599
 600 static int efuse_one_byte_read(struct ieee80211_hw *hw, u16 addr, u8 *data)
 601 {
 602         struct rtl_priv *rtlpriv = rtl_priv(hw);
 603         u8 tmpidx = 0;
 604         int result;
 605
 606         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 1,
 607                        (u8) (addr & 0xff));
 608         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2,
 609                        ((u8) ((addr >> 8) & 0x03)) |
 610                        (rtl_read_byte(rtlpriv,
 611                                       rtlpriv->cfg->maps[EFUSE_CTRL] + 2) &
 612                         0xFC));
 613
 614         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3, 0x72);
 615
 616         while (!(0x80 & rtl_read_byte(rtlpriv,
 617                                       rtlpriv->cfg->maps[EFUSE_CTRL] + 3))
 618                && (tmpidx < 100)) {
 619                 tmpidx++;
 620         }
 621
 622         if (tmpidx < 100) {
 623                 *data = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL]);
 624                 result = true;
 625         } else {
 626                 *data = 0xff;
 627                 result = false;
 628         }
 629         return result;
 630 }
 631
 632 static int efuse_one_byte_write(struct ieee80211_hw *hw, u16 addr, u8 data)
 633 {
 634         struct rtl_priv *rtlpriv = rtl_priv(hw);
 635         u8 tmpidx = 0;
 636
 637         RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD,
 638                  ("Addr = %x Data=%x\n", addr, data));
 639
 640         rtl_write_byte(rtlpriv,
 641                        rtlpriv->cfg->maps[EFUSE_CTRL] + 1, (u8) (addr & 0xff));
 642         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2,
 643                        (rtl_read_byte(rtlpriv,
 644                          rtlpriv->cfg->maps[EFUSE_CTRL] +
 645                          2) & 0xFC) | (u8) ((addr >> 8) & 0x03));
 646
 647         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL], data);
 648         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3, 0xF2);
 649
 650         while ((0x80 & rtl_read_byte(rtlpriv,
 651                                      rtlpriv->cfg->maps[EFUSE_CTRL] + 3))
 652                && (tmpidx < 100)) {
 653                 tmpidx++;
 654         }
 655
 656         if (tmpidx < 100)
 657                 return true;
 658
 659         return false;
 660 }
 661
 662 static void efuse_read_all_map(struct ieee80211_hw *hw, u8 * efuse)
 663 {
 664         struct rtl_priv *rtlpriv = rtl_priv(hw);
 665         efuse_power_switch(hw, false, true);
 666         read_efuse(hw, 0, rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE], efuse);
 667         efuse_power_switch(hw, false, false);
 668 }
 669
 670 static void efuse_read_data_case1(struct ieee80211_hw *hw, u16 *efuse_addr,
 671                                 u8 efuse_data, u8 offset, u8 *tmpdata,
 672                                 u8 *readstate)
 673 {
 674         bool dataempty = true;
 675         u8 hoffset;
 676         u8 tmpidx;
 677         u8 hworden;
 678         u8 word_cnts;
 679
 680         hoffset = (efuse_data >> 4) & 0x0F;
 681         hworden = efuse_data & 0x0F;
 682         word_cnts = efuse_calculate_word_cnts(hworden);
 683
 684         if (hoffset == offset) {
 685                 for (tmpidx = 0; tmpidx < word_cnts * 2; tmpidx++) {
 686                         if (efuse_one_byte_read(hw, *efuse_addr + 1 + tmpidx,
 687                             &efuse_data)) {
 688                                 tmpdata[tmpidx] = efuse_data;
 689                                 if (efuse_data != 0xff)
 690                                         dataempty = true;
 691                         }
 692                 }
 693
 694                 if (dataempty) {
 695                         *readstate = PG_STATE_DATA;
 696                 } else {
 697                         *efuse_addr = *efuse_addr + (word_cnts * 2) + 1;
 698                         *readstate = PG_STATE_HEADER;
 699                 }
 700
 701         } else {
 702                 *efuse_addr = *efuse_addr + (word_cnts * 2) + 1;
 703                 *readstate = PG_STATE_HEADER;
 704         }
 705 }
 706
 707 static int efuse_pg_packet_read(struct ieee80211_hw *hw, u8 offset, u8 *data)
 708 {
 709         u8 readstate = PG_STATE_HEADER;
 710         bool continual = true;
 711         u8 efuse_data, word_cnts = 0;
 712         u16 efuse_addr = 0;
 713         u8 tmpdata[8];
 714
 715         if (data == NULL)
 716                 return false;
 717         if (offset > 15)
 718                 return false;
 719
 720         memset(data, 0xff, PGPKT_DATA_SIZE * sizeof(u8));
 721         memset(tmpdata, 0xff, PGPKT_DATA_SIZE * sizeof(u8));
 722
 723         while (continual && (efuse_addr < EFUSE_MAX_SIZE)) {
 724                 if (readstate & PG_STATE_HEADER) {
 725                         if (efuse_one_byte_read(hw, efuse_addr, &efuse_data)
 726                             && (efuse_data != 0xFF))
 727                                 efuse_read_data_case1(hw, &efuse_addr,
 728                                                       efuse_data,
 729                                                       offset, tmpdata,
 730                                                       &readstate);
 731                         else
 732                                 continual = false;
 733                 } else if (readstate & PG_STATE_DATA) {
 734                         efuse_word_enable_data_read(0, tmpdata, data);
 735                         efuse_addr = efuse_addr + (word_cnts * 2) + 1;
 736                         readstate = PG_STATE_HEADER;
 737                 }
 738
 739         }
 740
 741         if ((data[0] == 0xff) && (data[1] == 0xff) &&
 742             (data[2] == 0xff) && (data[3] == 0xff) &&
 743             (data[4] == 0xff) && (data[5] == 0xff) &&
 744             (data[6] == 0xff) && (data[7] == 0xff))
 745                 return false;
 746         else
 747                 return true;
 748
 749 }
 750
 751 static void efuse_write_data_case1(struct ieee80211_hw *hw, u16 *efuse_addr,
 752                         u8 efuse_data, u8 offset, int *continual,
 753                         u8 *write_state, struct pgpkt_struct *target_pkt,
 754                         int *repeat_times, int *result, u8 word_en)
 755 {
 756         struct rtl_priv *rtlpriv = rtl_priv(hw);
 757         struct pgpkt_struct tmp_pkt;
 758         bool dataempty = true;
 759         u8 originaldata[8 * sizeof(u8)];
 760         u8 badworden = 0x0F;
 761         u8 match_word_en, tmp_word_en;
 762         u8 tmpindex;
 763         u8 tmp_header = efuse_data;
 764         u8 tmp_word_cnts;
 765
 766         tmp_pkt.offset = (tmp_header >> 4) & 0x0F;
 767         tmp_pkt.word_en = tmp_header & 0x0F;
 768         tmp_word_cnts = efuse_calculate_word_cnts(tmp_pkt.word_en);
 769
 770         if (tmp_pkt.offset != target_pkt->offset) {
 771                 *efuse_addr = *efuse_addr + (tmp_word_cnts * 2) + 1;
 772                 *write_state = PG_STATE_HEADER;
 773         } else {
 774                 for (tmpindex = 0; tmpindex < (tmp_word_cnts * 2); tmpindex++) {
 775                         u16 address = *efuse_addr + 1 + tmpindex;
 776                         if (efuse_one_byte_read(hw, address,
 777                              &efuse_data) && (efuse_data != 0xFF))
 778                                 dataempty = false;
 779                 }
 780
 781                 if (dataempty == false) {
 782                         *efuse_addr = *efuse_addr + (tmp_word_cnts * 2) + 1;
 783                         *write_state = PG_STATE_HEADER;
 784                 } else {
 785                         match_word_en = 0x0F;
 786                         if (!((target_pkt->word_en & BIT(0)) |
 787                              (tmp_pkt.word_en & BIT(0))))
 788                                 match_word_en &= (~BIT(0));
 789
 790                         if (!((target_pkt->word_en & BIT(1)) |
 791                              (tmp_pkt.word_en & BIT(1))))
 792                                 match_word_en &= (~BIT(1));
 793
 794                         if (!((target_pkt->word_en & BIT(2)) |
 795                              (tmp_pkt.word_en & BIT(2))))
 796                                 match_word_en &= (~BIT(2));
 797
 798                         if (!((target_pkt->word_en & BIT(3)) |
 799                              (tmp_pkt.word_en & BIT(3))))
 800                                 match_word_en &= (~BIT(3));
 801
 802                         if ((match_word_en & 0x0F) != 0x0F) {
 803                                 badworden = efuse_word_enable_data_write(
 804                                                             hw, *efuse_addr + 1,
 805                                                             tmp_pkt.word_en,
 806                                                             target_pkt->data);
 807
 808                                 if (0x0F != (badworden & 0x0F)) {
 809                                         u8 reorg_offset = offset;
 810                                         u8 reorg_worden = badworden;
 811                                         efuse_pg_packet_write(hw, reorg_offset,
 812                                                                reorg_worden,
 813                                                                originaldata);
 814                                 }
 815
 816                                 tmp_word_en = 0x0F;
 817                                 if ((target_pkt->word_en & BIT(0)) ^
 818                                     (match_word_en & BIT(0)))
 819                                         tmp_word_en &= (~BIT(0));
 820
 821                                 if ((target_pkt->word_en & BIT(1)) ^
 822                                     (match_word_en & BIT(1)))
 823                                         tmp_word_en &= (~BIT(1));
 824
 825                                 if ((target_pkt->word_en & BIT(2)) ^
 826                                      (match_word_en & BIT(2)))
 827                                         tmp_word_en &= (~BIT(2));
 828
 829                                 if ((target_pkt->word_en & BIT(3)) ^
 830                                      (match_word_en & BIT(3)))
 831                                         tmp_word_en &= (~BIT(3));
 832
 833                                 if ((tmp_word_en & 0x0F) != 0x0F) {
 834                                         *efuse_addr = efuse_get_current_size(hw);
 835                                         target_pkt->offset = offset;
 836                                         target_pkt->word_en = tmp_word_en;
 837                                 } else {
 838                                         *continual = false;
 839                                 }
 840                                 *write_state = PG_STATE_HEADER;
 841                                 *repeat_times += 1;
 842                                 if (*repeat_times > EFUSE_REPEAT_THRESHOLD_) {
 843                                         *continual = false;
 844                                         *result = false;
 845                                 }
 846                         } else {
 847                                 *efuse_addr += (2 * tmp_word_cnts) + 1;
 848                                 target_pkt->offset = offset;
 849                                 target_pkt->word_en = word_en;
 850                                 *write_state = PG_STATE_HEADER;
 851                         }
 852                 }
 853         }
 854         RTPRINT(rtlpriv, FEEPROM, EFUSE_PG, ("efuse PG_STATE_HEADER-1\n"));
 855 }
 856
 857 static void efuse_write_data_case2(struct ieee80211_hw *hw, u16 *efuse_addr,
 858                                    int *continual, u8 *write_state,
 859                                    struct pgpkt_struct target_pkt,
 860                                    int *repeat_times, int *result)
 861 {
 862         struct rtl_priv *rtlpriv = rtl_priv(hw);
 863         struct pgpkt_struct tmp_pkt;
 864         u8 pg_header;
 865         u8 tmp_header;
 866         u8 originaldata[8 * sizeof(u8)];
 867         u8 tmp_word_cnts;
 868         u8 badworden = 0x0F;
 869
 870         pg_header = ((target_pkt.offset << 4) & 0xf0) | target_pkt.word_en;
 871         efuse_one_byte_write(hw, *efuse_addr, pg_header);
 872         efuse_one_byte_read(hw, *efuse_addr, &tmp_header);
 873
 874         if (tmp_header == pg_header) {
 875                 *write_state = PG_STATE_DATA;
 876         } else if (tmp_header == 0xFF) {
 877                 *write_state = PG_STATE_HEADER;
 878                 *repeat_times += 1;
 879                 if (*repeat_times > EFUSE_REPEAT_THRESHOLD_) {
 880                         *continual = false;
 881                         *result = false;
 882                 }
 883         } else {
 884                 tmp_pkt.offset = (tmp_header >> 4) & 0x0F;
 885                 tmp_pkt.word_en = tmp_header & 0x0F;
 886
 887                 tmp_word_cnts = efuse_calculate_word_cnts(tmp_pkt.word_en);
 888
 889                 memset(originaldata, 0xff, 8 * sizeof(u8));
 890
 891                 if (efuse_pg_packet_read(hw, tmp_pkt.offset, originaldata)) {
 892                         badworden = efuse_word_enable_data_write(hw,
 893                                     *efuse_addr + 1, tmp_pkt.word_en,
 894                                     originaldata);
 895
 896                         if (0x0F != (badworden & 0x0F)) {
 897                                 u8 reorg_offset = tmp_pkt.offset;
 898                                 u8 reorg_worden = badworden;
 899                                 efuse_pg_packet_write(hw, reorg_offset,
 900                                                       reorg_worden,
 901                                                       originaldata);
 902                                 *efuse_addr = efuse_get_current_size(hw);
 903                         } else {
 904                                 *efuse_addr = *efuse_addr + (tmp_word_cnts * 2)
 905                                               + 1;
 906                         }
 907                 } else {
 908                         *efuse_addr = *efuse_addr + (tmp_word_cnts * 2) + 1;
 909                 }
 910
 911                 *write_state = PG_STATE_HEADER;
 912                 *repeat_times += 1;
 913                 if (*repeat_times > EFUSE_REPEAT_THRESHOLD_) {
 914                         *continual = false;
 915                         *result = false;
 916                 }
 917
 918                 RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,
 919                         ("efuse PG_STATE_HEADER-2\n"));
 920         }
 921 }
 922
 923 static int efuse_pg_packet_write(struct ieee80211_hw *hw,
 924                                  u8 offset, u8 word_en, u8 *data)
 925 {
 926         struct rtl_priv *rtlpriv = rtl_priv(hw);
 927         struct pgpkt_struct target_pkt;
 928         u8 write_state = PG_STATE_HEADER;
 929         int continual = true, result = true;
 930         u16 efuse_addr = 0;
 931         u8 efuse_data;
 932         u8 target_word_cnts = 0;
 933         u8 badworden = 0x0F;
 934         static int repeat_times;
 935
 936         if (efuse_get_current_size(hw) >=
 937             (EFUSE_MAX_SIZE - EFUSE_OOB_PROTECT_BYTES)) {
 938                 RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,
 939                         ("efuse_pg_packet_write error\n"));
 940                 return false;
 941         }
 942
 943         target_pkt.offset = offset;
 944         target_pkt.word_en = word_en;
 945
 946         memset(target_pkt.data, 0xFF, 8 * sizeof(u8));
 947
 948         efuse_word_enable_data_read(word_en, data, target_pkt.data);
 949         target_word_cnts = efuse_calculate_word_cnts(target_pkt.word_en);
 950
 951         RTPRINT(rtlpriv, FEEPROM, EFUSE_PG, ("efuse Power ON\n"));
 952
 953         while (continual && (efuse_addr <
 954                (EFUSE_MAX_SIZE - EFUSE_OOB_PROTECT_BYTES))) {
 955
 956                 if (write_state == PG_STATE_HEADER) {
 957                         badworden = 0x0F;
 958                         RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,
 959                                 ("efuse PG_STATE_HEADER\n"));
 960
 961                         if (efuse_one_byte_read(hw, efuse_addr, &efuse_data) &&
 962                             (efuse_data != 0xFF))
 963                                 efuse_write_data_case1(hw, &efuse_addr,
 964                                                        efuse_data, offset,
 965                                                        &continual,
 966                                                        &write_state, &target_pkt,
 967                                                        &repeat_times, &result,
 968                                                        word_en);
 969                         else
 970                                 efuse_write_data_case2(hw, &efuse_addr,
 971                                                        &continual,
 972                                                        &write_state,
 973                                                        target_pkt,
 974                                                        &repeat_times,
 975                                                        &result);
 976
 977                 } else if (write_state == PG_STATE_DATA) {
 978                         RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,
 979                                 ("efuse PG_STATE_DATA\n"));
 980                         badworden =
 981                             efuse_word_enable_data_write(hw, efuse_addr + 1,
 982                                                          target_pkt.word_en,
 983                                                          target_pkt.data);
 984
 985                         if ((badworden & 0x0F) == 0x0F) {
 986                                 continual = false;
 987                         } else {
 988                                 efuse_addr += (2 * target_word_cnts) + 1;
 989
 990                                 target_pkt.offset = offset;
 991                                 target_pkt.word_en = badworden;
 992                                 target_word_cnts =
 993                                     efuse_calculate_word_cnts(target_pkt.
 994                                                               word_en);
 995                                 write_state = PG_STATE_HEADER;
 996                                 repeat_times++;
 997                                 if (repeat_times > EFUSE_REPEAT_THRESHOLD_) {
 998                                         continual = false;
 999                                         result = false;
1000                                 }
1001                                 RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,
1002                                         ("efuse PG_STATE_HEADER-3\n"));
1003                         }
1004                 }
1005         }
1006
1007         if (efuse_addr >= (EFUSE_MAX_SIZE - EFUSE_OOB_PROTECT_BYTES)) {
1008                 RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD,
1009                          ("efuse_addr(%#x) Out of size!!\n", efuse_addr));
1010         }
1011
1012         return true;
1013 }
1014
1015 static void efuse_word_enable_data_read(u8 word_en,
1016                                         u8 *sourdata, u8 *targetdata)
1017 {
1018         if (!(word_en & BIT(0))) {
1019                 targetdata[0] = sourdata[0];
1020                 targetdata[1] = sourdata[1];
1021         }
1022
1023         if (!(word_en & BIT(1))) {
1024                 targetdata[2] = sourdata[2];
1025                 targetdata[3] = sourdata[3];
1026         }
1027
1028         if (!(word_en & BIT(2))) {
1029                 targetdata[4] = sourdata[4];
1030                 targetdata[5] = sourdata[5];
1031         }
1032
1033         if (!(word_en & BIT(3))) {
1034                 targetdata[6] = sourdata[6];
1035                 targetdata[7] = sourdata[7];
1036         }
1037 }
1038
1039 static u8 efuse_word_enable_data_write(struct ieee80211_hw *hw,
1040                                        u16 efuse_addr, u8 word_en, u8 *data)
1041 {
1042         struct rtl_priv *rtlpriv = rtl_priv(hw);
1043         u16 tmpaddr;
1044         u16 start_addr = efuse_addr;
1045         u8 badworden = 0x0F;
1046         u8 tmpdata[8];
1047
1048         memset(tmpdata, 0xff, PGPKT_DATA_SIZE);
1049         RT_TRACE(rtlpriv, COMP_EFUSE, DBG_LOUD,
1050                  ("word_en = %x efuse_addr=%x\n", word_en, efuse_addr));
1051
1052         if (!(word_en & BIT(0))) {
1053                 tmpaddr = start_addr;
1054                 efuse_one_byte_write(hw, start_addr++, data[0]);
1055                 efuse_one_byte_write(hw, start_addr++, data[1]);
1056
1057                 efuse_one_byte_read(hw, tmpaddr, &tmpdata[0]);
1058                 efuse_one_byte_read(hw, tmpaddr + 1, &tmpdata[1]);
1059                 if ((data[0] != tmpdata[0]) || (data[1] != tmpdata[1]))
1060                         badworden &= (~BIT(0));
1061         }
1062
1063         if (!(word_en & BIT(1))) {
1064                 tmpaddr = start_addr;
1065                 efuse_one_byte_write(hw, start_addr++, data[2]);
1066                 efuse_one_byte_write(hw, start_addr++, data[3]);
1067
1068                 efuse_one_byte_read(hw, tmpaddr, &tmpdata[2]);
1069                 efuse_one_byte_read(hw, tmpaddr + 1, &tmpdata[3]);
1070                 if ((data[2] != tmpdata[2]) || (data[3] != tmpdata[3]))
1071                         badworden &= (~BIT(1));
1072         }
1073
1074         if (!(word_en & BIT(2))) {
1075                 tmpaddr = start_addr;
1076                 efuse_one_byte_write(hw, start_addr++, data[4]);
1077                 efuse_one_byte_write(hw, start_addr++, data[5]);
1078
1079                 efuse_one_byte_read(hw, tmpaddr, &tmpdata[4]);
1080                 efuse_one_byte_read(hw, tmpaddr + 1, &tmpdata[5]);
1081                 if ((data[4] != tmpdata[4]) || (data[5] != tmpdata[5]))
1082                         badworden &= (~BIT(2));
1083         }
1084
1085         if (!(word_en & BIT(3))) {
1086                 tmpaddr = start_addr;
1087                 efuse_one_byte_write(hw, start_addr++, data[6]);
1088                 efuse_one_byte_write(hw, start_addr++, data[7]);
1089
1090                 efuse_one_byte_read(hw, tmpaddr, &tmpdata[6]);
1091                 efuse_one_byte_read(hw, tmpaddr + 1, &tmpdata[7]);
1092                 if ((data[6] != tmpdata[6]) || (data[7] != tmpdata[7]))
1093                         badworden &= (~BIT(3));
1094         }
1095
1096         return badworden;
1097 }
1098
1099 static void efuse_power_switch(struct ieee80211_hw *hw, u8 write, u8 pwrstate)
1100 {
1101         struct rtl_priv *rtlpriv = rtl_priv(hw);
1102         struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1103         u8 tempval;
1104         u16 tmpV16;
1105
1106         if (pwrstate && (rtlhal->hw_type !=
1107                 HARDWARE_TYPE_RTL8192SE)) {
1108                 tmpV16 = rtl_read_word(rtlpriv,
1109                                        rtlpriv->cfg->maps[SYS_ISO_CTRL]);
1110                 if (!(tmpV16 & rtlpriv->cfg->maps[EFUSE_PWC_EV12V])) {
1111                         tmpV16 |= rtlpriv->cfg->maps[EFUSE_PWC_EV12V];
1112                         rtl_write_word(rtlpriv,
1113                                        rtlpriv->cfg->maps[SYS_ISO_CTRL],
1114                                        tmpV16);
1115                 }
1116
1117                 tmpV16 = rtl_read_word(rtlpriv,
1118                                        rtlpriv->cfg->maps[SYS_FUNC_EN]);
1119                 if (!(tmpV16 & rtlpriv->cfg->maps[EFUSE_FEN_ELDR])) {
1120                         tmpV16 |= rtlpriv->cfg->maps[EFUSE_FEN_ELDR];
1121                         rtl_write_word(rtlpriv,
1122                                        rtlpriv->cfg->maps[SYS_FUNC_EN], tmpV16);
1123                 }
1124
1125                 tmpV16 = rtl_read_word(rtlpriv, rtlpriv->cfg->maps[SYS_CLK]);
1126                 if ((!(tmpV16 & rtlpriv->cfg->maps[EFUSE_LOADER_CLK_EN])) ||
1127                     (!(tmpV16 & rtlpriv->cfg->maps[EFUSE_ANA8M]))) {
1128                         tmpV16 |= (rtlpriv->cfg->maps[EFUSE_LOADER_CLK_EN] |
1129                                    rtlpriv->cfg->maps[EFUSE_ANA8M]);
1130                         rtl_write_word(rtlpriv,
1131                                        rtlpriv->cfg->maps[SYS_CLK], tmpV16);
1132                 }
1133         }
1134
1135         if (pwrstate) {
1136                 if (write) {
1137                         tempval = rtl_read_byte(rtlpriv,
1138                                                 rtlpriv->cfg->maps[EFUSE_TEST] +
1139                                                 3);
1140
1141                         if (rtlhal->hw_type != HARDWARE_TYPE_RTL8192SE) {
1142                                 tempval &= 0x0F;
1143                                 tempval |= (VOLTAGE_V25 << 4);
1144                         }
1145
1146                         rtl_write_byte(rtlpriv,
1147                                        rtlpriv->cfg->maps[EFUSE_TEST] + 3,
1148                                        (tempval | 0x80));
1149                 }
1150
1151                 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE) {
1152                         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CLK],
1153                                                 0x03);
1154                 }
1155
1156         } else {
1157                 if (write) {
1158                         tempval = rtl_read_byte(rtlpriv,
1159                                                 rtlpriv->cfg->maps[EFUSE_TEST] +
1160                                                 3);
1161                         rtl_write_byte(rtlpriv,
1162                                        rtlpriv->cfg->maps[EFUSE_TEST] + 3,
1163                                        (tempval & 0x7F));
1164                 }
1165
1166                 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE) {
1167                         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CLK],
1168                                                 0x02);
1169                 }
1170
1171         }
1172
1173 }
1174
1175 static u16 efuse_get_current_size(struct ieee80211_hw *hw)
1176 {
1177         int continual = true;
1178         u16 efuse_addr = 0;
1179         u8 hworden;
1180         u8 efuse_data, word_cnts;
1181
1182         while (continual && efuse_one_byte_read(hw, efuse_addr, &efuse_data)
1183                && (efuse_addr < EFUSE_MAX_SIZE)) {
1184                 if (efuse_data != 0xFF) {
1185                         hworden = efuse_data & 0x0F;
1186                         word_cnts = efuse_calculate_word_cnts(hworden);
1187                         efuse_addr = efuse_addr + (word_cnts * 2) + 1;
1188                 } else {
1189                         continual = false;
1190                 }
1191         }
1192
1193         return efuse_addr;
1194 }
1195
1196 static u8 efuse_calculate_word_cnts(u8 word_en)
1197 {
1198         u8 word_cnts = 0;
1199         if (!(word_en & BIT(0)))
1200                 word_cnts++;
1201         if (!(word_en & BIT(1)))
1202                 word_cnts++;
1203         if (!(word_en & BIT(2)))
1204                 word_cnts++;
1205         if (!(word_en & BIT(3)))
1206                 word_cnts++;
1207         return word_cnts;
1208 }
1209