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