drivers/net/wireless/realtek/rtlwifi/efuse.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright(c) 2009-2012  Realtek Corporation.*/
   3
   4 #include "wifi.h"
   5 #include "efuse.h"
   6 #include "pci.h"
   7 #include <linux/export.h>
   8
   9 static const u8 PGPKT_DATA_SIZE = 8;
  10 static const int EFUSE_MAX_SIZE = 512;
  11
  12 #define START_ADDRESS           0x1000
  13 #define REG_MCUFWDL             0x0080
  14
  15 static const struct rtl_efuse_ops efuse_ops = {
  16         .efuse_onebyte_read = efuse_one_byte_read,
  17         .efuse_logical_map_read = efuse_shadow_read,
  18 };
  19
  20 static void efuse_shadow_read_1byte(struct ieee80211_hw *hw, u16 offset,
  21                                     u8 *value);
  22 static void efuse_shadow_read_2byte(struct ieee80211_hw *hw, u16 offset,
  23                                     u16 *value);
  24 static void efuse_shadow_read_4byte(struct ieee80211_hw *hw, u16 offset,
  25                                     u32 *value);
  26 static void efuse_shadow_write_1byte(struct ieee80211_hw *hw, u16 offset,
  27                                      u8 value);
  28 static void efuse_shadow_write_2byte(struct ieee80211_hw *hw, u16 offset,
  29                                      u16 value);
  30 static void efuse_shadow_write_4byte(struct ieee80211_hw *hw, u16 offset,
  31                                      u32 value);
  32 static int efuse_one_byte_write(struct ieee80211_hw *hw, u16 addr,
  33                                 u8 data);
  34 static void efuse_read_all_map(struct ieee80211_hw *hw, u8 *efuse);
  35 static int efuse_pg_packet_read(struct ieee80211_hw *hw, u8 offset,
  36                                 u8 *data);
  37 static int efuse_pg_packet_write(struct ieee80211_hw *hw, u8 offset,
  38                                  u8 word_en, u8 *data);
  39 static void efuse_word_enable_data_read(u8 word_en, u8 *sourdata,
  40                                         u8 *targetdata);
  41 static u8 enable_efuse_data_write(struct ieee80211_hw *hw,
  42                                   u16 efuse_addr, u8 word_en, u8 *data);
  43 static u16 efuse_get_current_size(struct ieee80211_hw *hw);
  44 static u8 efuse_calculate_word_cnts(u8 word_en);
  45
  46 void efuse_initialize(struct ieee80211_hw *hw)
  47 {
  48         struct rtl_priv *rtlpriv = rtl_priv(hw);
  49         u8 bytetemp;
  50         u8 temp;
  51
  52         bytetemp = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[SYS_FUNC_EN] + 1);
  53         temp = bytetemp | 0x20;
  54         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[SYS_FUNC_EN] + 1, temp);
  55
  56         bytetemp = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[SYS_ISO_CTRL] + 1);
  57         temp = bytetemp & 0xFE;
  58         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[SYS_ISO_CTRL] + 1, temp);
  59
  60         bytetemp = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_TEST] + 3);
  61         temp = bytetemp | 0x80;
  62         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_TEST] + 3, temp);
  63
  64         rtl_write_byte(rtlpriv, 0x2F8, 0x3);
  65
  66         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3, 0x72);
  67
  68 }
  69
  70 u8 efuse_read_1byte(struct ieee80211_hw *hw, u16 address)
  71 {
  72         struct rtl_priv *rtlpriv = rtl_priv(hw);
  73         u8 data;
  74         u8 bytetemp;
  75         u8 temp;
  76         u32 k = 0;
  77         const u32 efuse_len =
  78                 rtlpriv->cfg->maps[EFUSE_REAL_CONTENT_SIZE];
  79
  80         if (address < efuse_len) {
  81                 temp = address & 0xFF;
  82                 rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 1,
  83                                temp);
  84                 bytetemp = rtl_read_byte(rtlpriv,
  85                                          rtlpriv->cfg->maps[EFUSE_CTRL] + 2);
  86                 temp = ((address >> 8) & 0x03) | (bytetemp & 0xFC);
  87                 rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2,
  88                                temp);
  89
  90                 bytetemp = rtl_read_byte(rtlpriv,
  91                                          rtlpriv->cfg->maps[EFUSE_CTRL] + 3);
  92                 temp = bytetemp & 0x7F;
  93                 rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3,
  94                                temp);
  95
  96                 bytetemp = rtl_read_byte(rtlpriv,
  97                                          rtlpriv->cfg->maps[EFUSE_CTRL] + 3);
  98                 while (!(bytetemp & 0x80)) {
  99                         bytetemp = rtl_read_byte(rtlpriv,
 100                                                  rtlpriv->cfg->
 101                                                  maps[EFUSE_CTRL] + 3);
 102                         k++;
 103                         if (k == 1000)
 104                                 break;
 105                 }
 106                 data = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL]);
 107                 return data;
 108         } else
 109                 return 0xFF;
 110
 111 }
 112 EXPORT_SYMBOL(efuse_read_1byte);
 113
 114 void efuse_write_1byte(struct ieee80211_hw *hw, u16 address, u8 value)
 115 {
 116         struct rtl_priv *rtlpriv = rtl_priv(hw);
 117         u8 bytetemp;
 118         u8 temp;
 119         u32 k = 0;
 120         const u32 efuse_len =
 121                 rtlpriv->cfg->maps[EFUSE_REAL_CONTENT_SIZE];
 122
 123         rtl_dbg(rtlpriv, COMP_EFUSE, DBG_LOUD, "Addr=%x Data =%x\n",
 124                 address, value);
 125
 126         if (address < efuse_len) {
 127                 rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL], value);
 128
 129                 temp = address & 0xFF;
 130                 rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 1,
 131                                temp);
 132                 bytetemp = rtl_read_byte(rtlpriv,
 133                                          rtlpriv->cfg->maps[EFUSE_CTRL] + 2);
 134
 135                 temp = ((address >> 8) & 0x03) | (bytetemp & 0xFC);
 136                 rtl_write_byte(rtlpriv,
 137                                rtlpriv->cfg->maps[EFUSE_CTRL] + 2, temp);
 138
 139                 bytetemp = rtl_read_byte(rtlpriv,
 140                                          rtlpriv->cfg->maps[EFUSE_CTRL] + 3);
 141                 temp = bytetemp | 0x80;
 142                 rtl_write_byte(rtlpriv,
 143                                rtlpriv->cfg->maps[EFUSE_CTRL] + 3, temp);
 144
 145                 bytetemp = rtl_read_byte(rtlpriv,
 146                                          rtlpriv->cfg->maps[EFUSE_CTRL] + 3);
 147
 148                 while (bytetemp & 0x80) {
 149                         bytetemp = rtl_read_byte(rtlpriv,
 150                                                  rtlpriv->cfg->
 151                                                  maps[EFUSE_CTRL] + 3);
 152                         k++;
 153                         if (k == 100) {
 154                                 k = 0;
 155                                 break;
 156                         }
 157                 }
 158         }
 159
 160 }
 161
 162 void read_efuse_byte(struct ieee80211_hw *hw, u16 _offset, u8 *pbuf)
 163 {
 164         struct rtl_priv *rtlpriv = rtl_priv(hw);
 165         u16 max_attempts = 10000;
 166         u32 value32;
 167         u8 readbyte;
 168         u16 retry;
 169
 170         /*
 171          * In case of USB devices, transfer speeds are limited, hence
 172          * efuse I/O reads could be (way) slower. So, decrease (a lot)
 173          * the read attempts in case of failures.
 174          */
 175         if (rtlpriv->rtlhal.interface == INTF_USB)
 176                 max_attempts = 10;
 177
 178         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 1,
 179                        (_offset & 0xff));
 180         readbyte = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2);
 181         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2,
 182                        ((_offset >> 8) & 0x03) | (readbyte & 0xfc));
 183
 184         readbyte = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3);
 185         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3,
 186                        (readbyte & 0x7f));
 187
 188         retry = 0;
 189         value32 = rtl_read_dword(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL]);
 190         while (!(((value32 >> 24) & 0xff) & 0x80) && (retry < max_attempts)) {
 191                 value32 = rtl_read_dword(rtlpriv,
 192                                          rtlpriv->cfg->maps[EFUSE_CTRL]);
 193                 retry++;
 194         }
 195
 196         udelay(50);
 197         value32 = rtl_read_dword(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL]);
 198
 199         *pbuf = (u8) (value32 & 0xff);
 200 }
 201 EXPORT_SYMBOL_GPL(read_efuse_byte);
 202
 203 void read_efuse(struct ieee80211_hw *hw, u16 _offset, u16 _size_byte, u8 *pbuf)
 204 {
 205         struct rtl_priv *rtlpriv = rtl_priv(hw);
 206         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 207         u8 *efuse_tbl;
 208         u8 rtemp8[1];
 209         u16 efuse_addr = 0;
 210         u8 offset, wren;
 211         u8 u1temp = 0;
 212         u16 i;
 213         u16 j;
 214         const u16 efuse_max_section =
 215                 rtlpriv->cfg->maps[EFUSE_MAX_SECTION_MAP];
 216         const u32 efuse_len =
 217                 rtlpriv->cfg->maps[EFUSE_REAL_CONTENT_SIZE];
 218         u16 **efuse_word;
 219         u16 efuse_utilized = 0;
 220         u8 efuse_usage;
 221
 222         if ((_offset + _size_byte) > rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]) {
 223                 rtl_dbg(rtlpriv, COMP_EFUSE, DBG_LOUD,
 224                         "%s: Invalid offset(%#x) with read bytes(%#x)!!\n",
 225                         __func__, _offset, _size_byte);
 226                 return;
 227         }
 228
 229         /* allocate memory for efuse_tbl and efuse_word */
 230         efuse_tbl = kzalloc(rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE],
 231                             GFP_ATOMIC);
 232         if (!efuse_tbl)
 233                 return;
 234         efuse_word = kcalloc(EFUSE_MAX_WORD_UNIT, sizeof(u16 *), GFP_ATOMIC);
 235         if (!efuse_word)
 236                 goto out;
 237         for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++) {
 238                 efuse_word[i] = kcalloc(efuse_max_section, sizeof(u16),
 239                                         GFP_ATOMIC);
 240                 if (!efuse_word[i])
 241                         goto done;
 242         }
 243
 244         for (i = 0; i < efuse_max_section; i++)
 245                 for (j = 0; j < EFUSE_MAX_WORD_UNIT; j++)
 246                         efuse_word[j][i] = 0xFFFF;
 247
 248         read_efuse_byte(hw, efuse_addr, rtemp8);
 249         if (*rtemp8 != 0xFF) {
 250                 efuse_utilized++;
 251                 RTPRINT(rtlpriv, FEEPROM, EFUSE_READ_ALL,
 252                         "Addr=%d\n", efuse_addr);
 253                 efuse_addr++;
 254         }
 255
 256         while ((*rtemp8 != 0xFF) && (efuse_addr < efuse_len)) {
 257                 /*  Check PG header for section num.  */
 258                 if ((*rtemp8 & 0x1F) == 0x0F) {/* extended header */
 259                         u1temp = ((*rtemp8 & 0xE0) >> 5);
 260                         read_efuse_byte(hw, efuse_addr, rtemp8);
 261
 262                         if ((*rtemp8 & 0x0F) == 0x0F) {
 263                                 efuse_addr++;
 264                                 read_efuse_byte(hw, efuse_addr, rtemp8);
 265
 266                                 if (*rtemp8 != 0xFF &&
 267                                     (efuse_addr < efuse_len)) {
 268                                         efuse_addr++;
 269                                 }
 270                                 continue;
 271                         } else {
 272                                 offset = ((*rtemp8 & 0xF0) >> 1) | u1temp;
 273                                 wren = (*rtemp8 & 0x0F);
 274                                 efuse_addr++;
 275                         }
 276                 } else {
 277                         offset = ((*rtemp8 >> 4) & 0x0f);
 278                         wren = (*rtemp8 & 0x0f);
 279                 }
 280
 281                 if (offset < efuse_max_section) {
 282                         RTPRINT(rtlpriv, FEEPROM, EFUSE_READ_ALL,
 283                                 "offset-%d Worden=%x\n", offset, wren);
 284
 285                         for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++) {
 286                                 if (!(wren & 0x01)) {
 287                                         RTPRINT(rtlpriv, FEEPROM,
 288                                                 EFUSE_READ_ALL,
 289                                                 "Addr=%d\n", efuse_addr);
 290
 291                                         read_efuse_byte(hw, efuse_addr, rtemp8);
 292                                         efuse_addr++;
 293                                         efuse_utilized++;
 294                                         efuse_word[i][offset] =
 295                                                          (*rtemp8 & 0xff);
 296
 297                                         if (efuse_addr >= efuse_len)
 298                                                 break;
 299
 300                                         RTPRINT(rtlpriv, FEEPROM,
 301                                                 EFUSE_READ_ALL,
 302                                                 "Addr=%d\n", efuse_addr);
 303
 304                                         read_efuse_byte(hw, efuse_addr, rtemp8);
 305                                         efuse_addr++;
 306                                         efuse_utilized++;
 307                                         efuse_word[i][offset] |=
 308                                             (((u16)*rtemp8 << 8) & 0xff00);
 309
 310                                         if (efuse_addr >= efuse_len)
 311                                                 break;
 312                                 }
 313
 314                                 wren >>= 1;
 315                         }
 316                 }
 317
 318                 RTPRINT(rtlpriv, FEEPROM, EFUSE_READ_ALL,
 319                         "Addr=%d\n", efuse_addr);
 320                 read_efuse_byte(hw, efuse_addr, rtemp8);
 321                 if (*rtemp8 != 0xFF && (efuse_addr < efuse_len)) {
 322                         efuse_utilized++;
 323                         efuse_addr++;
 324                 }
 325         }
 326
 327         for (i = 0; i < efuse_max_section; i++) {
 328                 for (j = 0; j < EFUSE_MAX_WORD_UNIT; j++) {
 329                         efuse_tbl[(i * 8) + (j * 2)] =
 330                             (efuse_word[j][i] & 0xff);
 331                         efuse_tbl[(i * 8) + ((j * 2) + 1)] =
 332                             ((efuse_word[j][i] >> 8) & 0xff);
 333                 }
 334         }
 335
 336         for (i = 0; i < _size_byte; i++)
 337                 pbuf[i] = efuse_tbl[_offset + i];
 338
 339         rtlefuse->efuse_usedbytes = efuse_utilized;
 340         efuse_usage = (u8) ((efuse_utilized * 100) / efuse_len);
 341         rtlefuse->efuse_usedpercentage = efuse_usage;
 342         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_EFUSE_BYTES,
 343                                       (u8 *)&efuse_utilized);
 344         rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_EFUSE_USAGE,
 345                                       &efuse_usage);
 346 done:
 347         for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++)
 348                 kfree(efuse_word[i]);
 349         kfree(efuse_word);
 350 out:
 351         kfree(efuse_tbl);
 352 }
 353
 354 bool efuse_shadow_update_chk(struct ieee80211_hw *hw)
 355 {
 356         struct rtl_priv *rtlpriv = rtl_priv(hw);
 357         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 358         u8 section_idx, i, base;
 359         u16 words_need = 0, hdr_num = 0, totalbytes, efuse_used;
 360         bool wordchanged, result = true;
 361
 362         for (section_idx = 0; section_idx < 16; section_idx++) {
 363                 base = section_idx * 8;
 364                 wordchanged = false;
 365
 366                 for (i = 0; i < 8; i = i + 2) {
 367                         if (rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i] !=
 368                             rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i] ||
 369                             rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i + 1] !=
 370                             rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i +
 371                                                                    1]) {
 372                                 words_need++;
 373                                 wordchanged = true;
 374                         }
 375                 }
 376
 377                 if (wordchanged)
 378                         hdr_num++;
 379         }
 380
 381         totalbytes = hdr_num + words_need * 2;
 382         efuse_used = rtlefuse->efuse_usedbytes;
 383
 384         if ((totalbytes + efuse_used) >=
 385             (EFUSE_MAX_SIZE - rtlpriv->cfg->maps[EFUSE_OOB_PROTECT_BYTES_LEN]))
 386                 result = false;
 387
 388         rtl_dbg(rtlpriv, COMP_EFUSE, DBG_LOUD,
 389                 "%s: totalbytes(%#x), hdr_num(%#x), words_need(%#x), efuse_used(%d)\n",
 390                 __func__, totalbytes, hdr_num, words_need, efuse_used);
 391
 392         return result;
 393 }
 394
 395 void efuse_shadow_read(struct ieee80211_hw *hw, u8 type,
 396                        u16 offset, u32 *value)
 397 {
 398         if (type == 1)
 399                 efuse_shadow_read_1byte(hw, offset, (u8 *)value);
 400         else if (type == 2)
 401                 efuse_shadow_read_2byte(hw, offset, (u16 *)value);
 402         else if (type == 4)
 403                 efuse_shadow_read_4byte(hw, offset, value);
 404
 405 }
 406 EXPORT_SYMBOL(efuse_shadow_read);
 407
 408 void efuse_shadow_write(struct ieee80211_hw *hw, u8 type, u16 offset,
 409                                 u32 value)
 410 {
 411         if (type == 1)
 412                 efuse_shadow_write_1byte(hw, offset, (u8) value);
 413         else if (type == 2)
 414                 efuse_shadow_write_2byte(hw, offset, (u16) value);
 415         else if (type == 4)
 416                 efuse_shadow_write_4byte(hw, offset, value);
 417
 418 }
 419
 420 bool efuse_shadow_update(struct ieee80211_hw *hw)
 421 {
 422         struct rtl_priv *rtlpriv = rtl_priv(hw);
 423         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 424         u16 i, offset, base;
 425         u8 word_en = 0x0F;
 426         u8 first_pg = false;
 427
 428         rtl_dbg(rtlpriv, COMP_EFUSE, DBG_LOUD, "\n");
 429
 430         if (!efuse_shadow_update_chk(hw)) {
 431                 efuse_read_all_map(hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0]);
 432                 memcpy(&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
 433                        &rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
 434                        rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]);
 435
 436                 rtl_dbg(rtlpriv, COMP_EFUSE, DBG_LOUD,
 437                         "efuse out of capacity!!\n");
 438                 return false;
 439         }
 440         efuse_power_switch(hw, true, true);
 441
 442         for (offset = 0; offset < 16; offset++) {
 443
 444                 word_en = 0x0F;
 445                 base = offset * 8;
 446
 447                 for (i = 0; i < 8; i++) {
 448                         if (first_pg) {
 449                                 word_en &= ~(BIT(i / 2));
 450
 451                                 rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i] =
 452                                     rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i];
 453                         } else {
 454
 455                                 if (rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i] !=
 456                                     rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i]) {
 457                                         word_en &= ~(BIT(i / 2));
 458
 459                                         rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i] =
 460                                             rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i];
 461                                 }
 462                         }
 463                 }
 464
 465                 if (word_en != 0x0F) {
 466                         u8 tmpdata[8];
 467
 468                         memcpy(tmpdata,
 469                                &rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base],
 470                                8);
 471                         RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_LOUD,
 472                                       "U-efuse\n", tmpdata, 8);
 473
 474                         if (!efuse_pg_packet_write(hw, (u8) offset, word_en,
 475                                                    tmpdata)) {
 476                                 rtl_dbg(rtlpriv, COMP_ERR, DBG_WARNING,
 477                                         "PG section(%#x) fail!!\n", offset);
 478                                 break;
 479                         }
 480                 }
 481         }
 482
 483         efuse_power_switch(hw, true, false);
 484         efuse_read_all_map(hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0]);
 485
 486         memcpy(&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
 487                &rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
 488                rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]);
 489
 490         rtl_dbg(rtlpriv, COMP_EFUSE, DBG_LOUD, "\n");
 491         return true;
 492 }
 493
 494 void rtl_efuse_shadow_map_update(struct ieee80211_hw *hw)
 495 {
 496         struct rtl_priv *rtlpriv = rtl_priv(hw);
 497         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 498
 499         if (rtlefuse->autoload_failflag)
 500                 memset((&rtlefuse->efuse_map[EFUSE_INIT_MAP][0]),
 501                        0xFF, rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]);
 502         else
 503                 efuse_read_all_map(hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0]);
 504
 505         memcpy(&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
 506                         &rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
 507                         rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]);
 508
 509 }
 510 EXPORT_SYMBOL(rtl_efuse_shadow_map_update);
 511
 512 void efuse_force_write_vendor_id(struct ieee80211_hw *hw)
 513 {
 514         u8 tmpdata[8] = { 0xFF, 0xFF, 0xEC, 0x10, 0xFF, 0xFF, 0xFF, 0xFF };
 515
 516         efuse_power_switch(hw, true, true);
 517
 518         efuse_pg_packet_write(hw, 1, 0xD, tmpdata);
 519
 520         efuse_power_switch(hw, true, false);
 521
 522 }
 523
 524 void efuse_re_pg_section(struct ieee80211_hw *hw, u8 section_idx)
 525 {
 526 }
 527
 528 static void efuse_shadow_read_1byte(struct ieee80211_hw *hw,
 529                                     u16 offset, u8 *value)
 530 {
 531         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 532         *value = rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset];
 533 }
 534
 535 static void efuse_shadow_read_2byte(struct ieee80211_hw *hw,
 536                                     u16 offset, u16 *value)
 537 {
 538         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 539
 540         *value = rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset];
 541         *value |= rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 1] << 8;
 542
 543 }
 544
 545 static void efuse_shadow_read_4byte(struct ieee80211_hw *hw,
 546                                     u16 offset, u32 *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         *value |= rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 2] << 16;
 553         *value |= rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 3] << 24;
 554 }
 555
 556 static void efuse_shadow_write_1byte(struct ieee80211_hw *hw,
 557                                      u16 offset, u8 value)
 558 {
 559         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 560
 561         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset] = value;
 562 }
 563
 564 static void efuse_shadow_write_2byte(struct ieee80211_hw *hw,
 565                                      u16 offset, u16 value)
 566 {
 567         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 568
 569         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset] = value & 0x00FF;
 570         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 1] = value >> 8;
 571
 572 }
 573
 574 static void efuse_shadow_write_4byte(struct ieee80211_hw *hw,
 575                                      u16 offset, u32 value)
 576 {
 577         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 578
 579         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset] =
 580             (u8) (value & 0x000000FF);
 581         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 1] =
 582             (u8) ((value >> 8) & 0x0000FF);
 583         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 2] =
 584             (u8) ((value >> 16) & 0x00FF);
 585         rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 3] =
 586             (u8) ((value >> 24) & 0xFF);
 587
 588 }
 589
 590 int efuse_one_byte_read(struct ieee80211_hw *hw, u16 addr, u8 *data)
 591 {
 592         struct rtl_priv *rtlpriv = rtl_priv(hw);
 593         u8 tmpidx = 0;
 594         int result;
 595
 596         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 1,
 597                        (u8) (addr & 0xff));
 598         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2,
 599                        ((u8) ((addr >> 8) & 0x03)) |
 600                        (rtl_read_byte(rtlpriv,
 601                                       rtlpriv->cfg->maps[EFUSE_CTRL] + 2) &
 602                         0xFC));
 603
 604         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3, 0x72);
 605
 606         while (!(0x80 & rtl_read_byte(rtlpriv,
 607                                       rtlpriv->cfg->maps[EFUSE_CTRL] + 3))
 608                && (tmpidx < 100)) {
 609                 tmpidx++;
 610         }
 611
 612         if (tmpidx < 100) {
 613                 *data = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL]);
 614                 result = true;
 615         } else {
 616                 *data = 0xff;
 617                 result = false;
 618         }
 619         return result;
 620 }
 621 EXPORT_SYMBOL(efuse_one_byte_read);
 622
 623 static int efuse_one_byte_write(struct ieee80211_hw *hw, u16 addr, u8 data)
 624 {
 625         struct rtl_priv *rtlpriv = rtl_priv(hw);
 626         u8 tmpidx = 0;
 627
 628         rtl_dbg(rtlpriv, COMP_EFUSE, DBG_LOUD,
 629                 "Addr = %x Data=%x\n", addr, data);
 630
 631         rtl_write_byte(rtlpriv,
 632                        rtlpriv->cfg->maps[EFUSE_CTRL] + 1, (u8) (addr & 0xff));
 633         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2,
 634                        (rtl_read_byte(rtlpriv,
 635                          rtlpriv->cfg->maps[EFUSE_CTRL] +
 636                          2) & 0xFC) | (u8) ((addr >> 8) & 0x03));
 637
 638         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL], data);
 639         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3, 0xF2);
 640
 641         while ((0x80 & rtl_read_byte(rtlpriv,
 642                                      rtlpriv->cfg->maps[EFUSE_CTRL] + 3))
 643                && (tmpidx < 100)) {
 644                 tmpidx++;
 645         }
 646
 647         if (tmpidx < 100)
 648                 return true;
 649         return false;
 650 }
 651
 652 static void efuse_read_all_map(struct ieee80211_hw *hw, u8 *efuse)
 653 {
 654         struct rtl_priv *rtlpriv = rtl_priv(hw);
 655
 656         efuse_power_switch(hw, false, true);
 657         read_efuse(hw, 0, rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE], efuse);
 658         efuse_power_switch(hw, false, false);
 659 }
 660
 661 static void efuse_read_data_case1(struct ieee80211_hw *hw, u16 *efuse_addr,
 662                                 u8 efuse_data, u8 offset, u8 *tmpdata,
 663                                 u8 *readstate)
 664 {
 665         bool dataempty = true;
 666         u8 hoffset;
 667         u8 tmpidx;
 668         u8 hworden;
 669         u8 word_cnts;
 670
 671         hoffset = (efuse_data >> 4) & 0x0F;
 672         hworden = efuse_data & 0x0F;
 673         word_cnts = efuse_calculate_word_cnts(hworden);
 674
 675         if (hoffset == offset) {
 676                 for (tmpidx = 0; tmpidx < word_cnts * 2; tmpidx++) {
 677                         if (efuse_one_byte_read(hw, *efuse_addr + 1 + tmpidx,
 678                                                 &efuse_data)) {
 679                                 tmpdata[tmpidx] = efuse_data;
 680                                 if (efuse_data != 0xff)
 681                                         dataempty = false;
 682                         }
 683                 }
 684
 685                 if (!dataempty) {
 686                         *readstate = PG_STATE_DATA;
 687                 } else {
 688                         *efuse_addr = *efuse_addr + (word_cnts * 2) + 1;
 689                         *readstate = PG_STATE_HEADER;
 690                 }
 691
 692         } else {
 693                 *efuse_addr = *efuse_addr + (word_cnts * 2) + 1;
 694                 *readstate = PG_STATE_HEADER;
 695         }
 696 }
 697
 698 static int efuse_pg_packet_read(struct ieee80211_hw *hw, u8 offset, u8 *data)
 699 {
 700         u8 readstate = PG_STATE_HEADER;
 701
 702         bool continual = true;
 703
 704         u8 efuse_data, word_cnts = 0;
 705         u16 efuse_addr = 0;
 706         u8 tmpdata[8];
 707
 708         if (data == NULL)
 709                 return false;
 710         if (offset > 15)
 711                 return false;
 712
 713         memset(data, 0xff, PGPKT_DATA_SIZE * sizeof(u8));
 714         memset(tmpdata, 0xff, PGPKT_DATA_SIZE * sizeof(u8));
 715
 716         while (continual && (efuse_addr < EFUSE_MAX_SIZE)) {
 717                 if (readstate & PG_STATE_HEADER) {
 718                         if (efuse_one_byte_read(hw, efuse_addr, &efuse_data)
 719                             && (efuse_data != 0xFF))
 720                                 efuse_read_data_case1(hw, &efuse_addr,
 721                                                       efuse_data, offset,
 722                                                       tmpdata, &readstate);
 723                         else
 724                                 continual = false;
 725                 } else if (readstate & PG_STATE_DATA) {
 726                         efuse_word_enable_data_read(0, tmpdata, data);
 727                         efuse_addr = efuse_addr + (word_cnts * 2) + 1;
 728                         readstate = PG_STATE_HEADER;
 729                 }
 730
 731         }
 732
 733         if ((data[0] == 0xff) && (data[1] == 0xff) &&
 734             (data[2] == 0xff) && (data[3] == 0xff) &&
 735             (data[4] == 0xff) && (data[5] == 0xff) &&
 736             (data[6] == 0xff) && (data[7] == 0xff))
 737                 return false;
 738         else
 739                 return true;
 740
 741 }
 742
 743 static void efuse_write_data_case1(struct ieee80211_hw *hw, u16 *efuse_addr,
 744                                    u8 efuse_data, u8 offset,
 745                                    int *continual, u8 *write_state,
 746                                    struct pgpkt_struct *target_pkt,
 747                                    int *repeat_times, int *result, u8 word_en)
 748 {
 749         struct rtl_priv *rtlpriv = rtl_priv(hw);
 750         struct pgpkt_struct tmp_pkt;
 751         int dataempty = true;
 752         u8 originaldata[8 * sizeof(u8)];
 753         u8 badworden = 0x0F;
 754         u8 match_word_en, tmp_word_en;
 755         u8 tmpindex;
 756         u8 tmp_header = efuse_data;
 757         u8 tmp_word_cnts;
 758
 759         tmp_pkt.offset = (tmp_header >> 4) & 0x0F;
 760         tmp_pkt.word_en = tmp_header & 0x0F;
 761         tmp_word_cnts = efuse_calculate_word_cnts(tmp_pkt.word_en);
 762
 763         if (tmp_pkt.offset != target_pkt->offset) {
 764                 *efuse_addr = *efuse_addr + (tmp_word_cnts * 2) + 1;
 765                 *write_state = PG_STATE_HEADER;
 766         } else {
 767                 for (tmpindex = 0; tmpindex < (tmp_word_cnts * 2); tmpindex++) {
 768                         if (efuse_one_byte_read(hw,
 769                                                 (*efuse_addr + 1 + tmpindex),
 770                                                 &efuse_data) &&
 771                             (efuse_data != 0xFF))
 772                                 dataempty = false;
 773                 }
 774
 775                 if (!dataempty) {
 776                         *efuse_addr = *efuse_addr + (tmp_word_cnts * 2) + 1;
 777                         *write_state = PG_STATE_HEADER;
 778                 } else {
 779                         match_word_en = 0x0F;
 780                         if (!((target_pkt->word_en & BIT(0)) |
 781                             (tmp_pkt.word_en & BIT(0))))
 782                                 match_word_en &= (~BIT(0));
 783
 784                         if (!((target_pkt->word_en & BIT(1)) |
 785                             (tmp_pkt.word_en & BIT(1))))
 786                                 match_word_en &= (~BIT(1));
 787
 788                         if (!((target_pkt->word_en & BIT(2)) |
 789                             (tmp_pkt.word_en & BIT(2))))
 790                                 match_word_en &= (~BIT(2));
 791
 792                         if (!((target_pkt->word_en & BIT(3)) |
 793                             (tmp_pkt.word_en & BIT(3))))
 794                                 match_word_en &= (~BIT(3));
 795
 796                         if ((match_word_en & 0x0F) != 0x0F) {
 797                                 badworden =
 798                                   enable_efuse_data_write(hw,
 799                                                           *efuse_addr + 1,
 800                                                           tmp_pkt.word_en,
 801                                                           target_pkt->data);
 802
 803                                 if (0x0F != (badworden & 0x0F)) {
 804                                         u8 reorg_offset = offset;
 805                                         u8 reorg_worden = badworden;
 806
 807                                         efuse_pg_packet_write(hw, reorg_offset,
 808                                                               reorg_worden,
 809                                                               originaldata);
 810                                 }
 811
 812                                 tmp_word_en = 0x0F;
 813                                 if ((target_pkt->word_en & BIT(0)) ^
 814                                     (match_word_en & BIT(0)))
 815                                         tmp_word_en &= (~BIT(0));
 816
 817                                 if ((target_pkt->word_en & BIT(1)) ^
 818                                     (match_word_en & BIT(1)))
 819                                         tmp_word_en &= (~BIT(1));
 820
 821                                 if ((target_pkt->word_en & BIT(2)) ^
 822                                     (match_word_en & BIT(2)))
 823                                         tmp_word_en &= (~BIT(2));
 824
 825                                 if ((target_pkt->word_en & BIT(3)) ^
 826                                     (match_word_en & BIT(3)))
 827                                         tmp_word_en &= (~BIT(3));
 828
 829                                 if ((tmp_word_en & 0x0F) != 0x0F) {
 830                                         *efuse_addr = efuse_get_current_size(hw);
 831                                         target_pkt->offset = offset;
 832                                         target_pkt->word_en = tmp_word_en;
 833                                 } else {
 834                                         *continual = false;
 835                                 }
 836                                 *write_state = PG_STATE_HEADER;
 837                                 *repeat_times += 1;
 838                                 if (*repeat_times > EFUSE_REPEAT_THRESHOLD_) {
 839                                         *continual = false;
 840                                         *result = false;
 841                                 }
 842                         } else {
 843                                 *efuse_addr += (2 * tmp_word_cnts) + 1;
 844                                 target_pkt->offset = offset;
 845                                 target_pkt->word_en = word_en;
 846                                 *write_state = PG_STATE_HEADER;
 847                         }
 848                 }
 849         }
 850         RTPRINT(rtlpriv, FEEPROM, EFUSE_PG, "efuse PG_STATE_HEADER-1\n");
 851 }
 852
 853 static void efuse_write_data_case2(struct ieee80211_hw *hw, u16 *efuse_addr,
 854                                    int *continual, u8 *write_state,
 855                                    struct pgpkt_struct target_pkt,
 856                                    int *repeat_times, int *result)
 857 {
 858         struct rtl_priv *rtlpriv = rtl_priv(hw);
 859         struct pgpkt_struct tmp_pkt;
 860         u8 pg_header;
 861         u8 tmp_header;
 862         u8 originaldata[8 * sizeof(u8)];
 863         u8 tmp_word_cnts;
 864         u8 badworden = 0x0F;
 865
 866         pg_header = ((target_pkt.offset << 4) & 0xf0) | target_pkt.word_en;
 867         efuse_one_byte_write(hw, *efuse_addr, pg_header);
 868         efuse_one_byte_read(hw, *efuse_addr, &tmp_header);
 869
 870         if (tmp_header == pg_header) {
 871                 *write_state = PG_STATE_DATA;
 872         } else if (tmp_header == 0xFF) {
 873                 *write_state = PG_STATE_HEADER;
 874                 *repeat_times += 1;
 875                 if (*repeat_times > EFUSE_REPEAT_THRESHOLD_) {
 876                         *continual = false;
 877                         *result = false;
 878                 }
 879         } else {
 880                 tmp_pkt.offset = (tmp_header >> 4) & 0x0F;
 881                 tmp_pkt.word_en = tmp_header & 0x0F;
 882
 883                 tmp_word_cnts = efuse_calculate_word_cnts(tmp_pkt.word_en);
 884
 885                 memset(originaldata, 0xff,  8 * sizeof(u8));
 886
 887                 if (efuse_pg_packet_read(hw, tmp_pkt.offset, originaldata)) {
 888                         badworden = enable_efuse_data_write(hw,
 889                                                             *efuse_addr + 1,
 890                                                             tmp_pkt.word_en,
 891                                                             originaldata);
 892
 893                         if (0x0F != (badworden & 0x0F)) {
 894                                 u8 reorg_offset = tmp_pkt.offset;
 895                                 u8 reorg_worden = badworden;
 896
 897                                 efuse_pg_packet_write(hw, reorg_offset,
 898                                                       reorg_worden,
 899                                                       originaldata);
 900                                 *efuse_addr = efuse_get_current_size(hw);
 901                         } else {
 902                                 *efuse_addr = *efuse_addr +
 903                                               (tmp_word_cnts * 2) + 1;
 904                         }
 905                 } else {
 906                         *efuse_addr = *efuse_addr + (tmp_word_cnts * 2) + 1;
 907                 }
 908
 909                 *write_state = PG_STATE_HEADER;
 910                 *repeat_times += 1;
 911                 if (*repeat_times > EFUSE_REPEAT_THRESHOLD_) {
 912                         *continual = false;
 913                         *result = false;
 914                 }
 915
 916                 RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,
 917                         "efuse PG_STATE_HEADER-2\n");
 918         }
 919 }
 920
 921 static int efuse_pg_packet_write(struct ieee80211_hw *hw,
 922                                  u8 offset, u8 word_en, u8 *data)
 923 {
 924         struct rtl_priv *rtlpriv = rtl_priv(hw);
 925         struct pgpkt_struct target_pkt;
 926         u8 write_state = PG_STATE_HEADER;
 927         int continual = true, result = true;
 928         u16 efuse_addr = 0;
 929         u8 efuse_data;
 930         u8 target_word_cnts = 0;
 931         u8 badworden = 0x0F;
 932         static int repeat_times;
 933
 934         if (efuse_get_current_size(hw) >= (EFUSE_MAX_SIZE -
 935                 rtlpriv->cfg->maps[EFUSE_OOB_PROTECT_BYTES_LEN])) {
 936                 RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,
 937                         "efuse_pg_packet_write error\n");
 938                 return false;
 939         }
 940
 941         target_pkt.offset = offset;
 942         target_pkt.word_en = word_en;
 943
 944         memset(target_pkt.data, 0xFF,  8 * sizeof(u8));
 945
 946         efuse_word_enable_data_read(word_en, data, target_pkt.data);
 947         target_word_cnts = efuse_calculate_word_cnts(target_pkt.word_en);
 948
 949         RTPRINT(rtlpriv, FEEPROM, EFUSE_PG, "efuse Power ON\n");
 950
 951         while (continual && (efuse_addr < (EFUSE_MAX_SIZE -
 952                 rtlpriv->cfg->maps[EFUSE_OOB_PROTECT_BYTES_LEN]))) {
 953                 if (write_state == PG_STATE_HEADER) {
 954                         badworden = 0x0F;
 955                         RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,
 956                                 "efuse PG_STATE_HEADER\n");
 957
 958                         if (efuse_one_byte_read(hw, efuse_addr, &efuse_data) &&
 959                             (efuse_data != 0xFF))
 960                                 efuse_write_data_case1(hw, &efuse_addr,
 961                                                        efuse_data, offset,
 962                                                        &continual,
 963                                                        &write_state,
 964                                                        &target_pkt,
 965                                                        &repeat_times, &result,
 966                                                        word_en);
 967                         else
 968                                 efuse_write_data_case2(hw, &efuse_addr,
 969                                                        &continual,
 970                                                        &write_state,
 971                                                        target_pkt,
 972                                                        &repeat_times,
 973                                                        &result);
 974
 975                 } else if (write_state == PG_STATE_DATA) {
 976                         RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,
 977                                 "efuse PG_STATE_DATA\n");
 978                         badworden =
 979                             enable_efuse_data_write(hw, efuse_addr + 1,
 980                                                     target_pkt.word_en,
 981                                                     target_pkt.data);
 982
 983                         if ((badworden & 0x0F) == 0x0F) {
 984                                 continual = false;
 985                         } else {
 986                                 efuse_addr =
 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 -
1007                 rtlpriv->cfg->maps[EFUSE_OOB_PROTECT_BYTES_LEN])) {
1008                 rtl_dbg(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, u8 *sourdata,
1016                                         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 enable_efuse_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         rtl_dbg(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 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 != HARDWARE_TYPE_RTL8192SE)) {
1107                 if (rtlhal->hw_type != HARDWARE_TYPE_RTL8192CE &&
1108                     rtlhal->hw_type != HARDWARE_TYPE_RTL8192DE) {
1109                         rtl_write_byte(rtlpriv,
1110                                        rtlpriv->cfg->maps[EFUSE_ACCESS], 0x69);
1111                 } else {
1112                         tmpv16 =
1113                           rtl_read_word(rtlpriv,
1114                                         rtlpriv->cfg->maps[SYS_ISO_CTRL]);
1115                         if (!(tmpv16 & rtlpriv->cfg->maps[EFUSE_PWC_EV12V])) {
1116                                 tmpv16 |= rtlpriv->cfg->maps[EFUSE_PWC_EV12V];
1117                                 rtl_write_word(rtlpriv,
1118                                                rtlpriv->cfg->maps[SYS_ISO_CTRL],
1119                                                tmpv16);
1120                         }
1121                 }
1122                 tmpv16 = rtl_read_word(rtlpriv,
1123                                        rtlpriv->cfg->maps[SYS_FUNC_EN]);
1124                 if (!(tmpv16 & rtlpriv->cfg->maps[EFUSE_FEN_ELDR])) {
1125                         tmpv16 |= rtlpriv->cfg->maps[EFUSE_FEN_ELDR];
1126                         rtl_write_word(rtlpriv,
1127                                        rtlpriv->cfg->maps[SYS_FUNC_EN], tmpv16);
1128                 }
1129
1130                 tmpv16 = rtl_read_word(rtlpriv, rtlpriv->cfg->maps[SYS_CLK]);
1131                 if ((!(tmpv16 & rtlpriv->cfg->maps[EFUSE_LOADER_CLK_EN])) ||
1132                     (!(tmpv16 & rtlpriv->cfg->maps[EFUSE_ANA8M]))) {
1133                         tmpv16 |= (rtlpriv->cfg->maps[EFUSE_LOADER_CLK_EN] |
1134                                    rtlpriv->cfg->maps[EFUSE_ANA8M]);
1135                         rtl_write_word(rtlpriv,
1136                                        rtlpriv->cfg->maps[SYS_CLK], tmpv16);
1137                 }
1138         }
1139
1140         if (pwrstate) {
1141                 if (write) {
1142                         tempval = rtl_read_byte(rtlpriv,
1143                                                 rtlpriv->cfg->maps[EFUSE_TEST] +
1144                                                 3);
1145
1146                         if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE) {
1147                                 tempval &= ~(BIT(3) | BIT(4) | BIT(5) | BIT(6));
1148                                 tempval |= (VOLTAGE_V25 << 3);
1149                         } else if (rtlhal->hw_type != HARDWARE_TYPE_RTL8192SE) {
1150                                 tempval &= 0x0F;
1151                                 tempval |= (VOLTAGE_V25 << 4);
1152                         }
1153
1154                         rtl_write_byte(rtlpriv,
1155                                        rtlpriv->cfg->maps[EFUSE_TEST] + 3,
1156                                        (tempval | 0x80));
1157                 }
1158
1159                 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE) {
1160                         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CLK],
1161                                        0x03);
1162                 }
1163         } else {
1164                 if (rtlhal->hw_type != HARDWARE_TYPE_RTL8192CE &&
1165                     rtlhal->hw_type != HARDWARE_TYPE_RTL8192DE)
1166                         rtl_write_byte(rtlpriv,
1167                                        rtlpriv->cfg->maps[EFUSE_ACCESS], 0);
1168
1169                 if (write) {
1170                         tempval = rtl_read_byte(rtlpriv,
1171                                                 rtlpriv->cfg->maps[EFUSE_TEST] +
1172                                                 3);
1173                         rtl_write_byte(rtlpriv,
1174                                        rtlpriv->cfg->maps[EFUSE_TEST] + 3,
1175                                        (tempval & 0x7F));
1176                 }
1177
1178                 if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE) {
1179                         rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CLK],
1180                                        0x02);
1181                 }
1182         }
1183 }
1184 EXPORT_SYMBOL(efuse_power_switch);
1185
1186 static u16 efuse_get_current_size(struct ieee80211_hw *hw)
1187 {
1188         int continual = true;
1189         u16 efuse_addr = 0;
1190         u8 hworden;
1191         u8 efuse_data, word_cnts;
1192
1193         while (continual && efuse_one_byte_read(hw, efuse_addr, &efuse_data) &&
1194                (efuse_addr < EFUSE_MAX_SIZE)) {
1195                 if (efuse_data != 0xFF) {
1196                         hworden = efuse_data & 0x0F;
1197                         word_cnts = efuse_calculate_word_cnts(hworden);
1198                         efuse_addr = efuse_addr + (word_cnts * 2) + 1;
1199                 } else {
1200                         continual = false;
1201                 }
1202         }
1203
1204         return efuse_addr;
1205 }
1206
1207 static u8 efuse_calculate_word_cnts(u8 word_en)
1208 {
1209         u8 word_cnts = 0;
1210
1211         if (!(word_en & BIT(0)))
1212                 word_cnts++;
1213         if (!(word_en & BIT(1)))
1214                 word_cnts++;
1215         if (!(word_en & BIT(2)))
1216                 word_cnts++;
1217         if (!(word_en & BIT(3)))
1218                 word_cnts++;
1219         return word_cnts;
1220 }
1221
1222 int rtl_get_hwinfo(struct ieee80211_hw *hw, struct rtl_priv *rtlpriv,
1223                    int max_size, u8 *hwinfo, const int *params)
1224 {
1225         struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1226         struct rtl_pci_priv *rtlpcipriv = rtl_pcipriv(hw);
1227         struct device *dev = &rtlpcipriv->dev.pdev->dev;
1228         u16 eeprom_id;
1229         u16 i, usvalue;
1230
1231         switch (rtlefuse->epromtype) {
1232         case EEPROM_BOOT_EFUSE:
1233                 rtl_efuse_shadow_map_update(hw);
1234                 break;
1235
1236         case EEPROM_93C46:
1237                 pr_err("RTL8XXX did not boot from eeprom, check it !!\n");
1238                 return 1;
1239
1240         default:
1241                 dev_warn(dev, "no efuse data\n");
1242                 return 1;
1243         }
1244
1245         memcpy(hwinfo, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0], max_size);
1246
1247         RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "MAP",
1248                       hwinfo, max_size);
1249
1250         eeprom_id = *((u16 *)&hwinfo[0]);
1251         if (eeprom_id != params[0]) {
1252                 rtl_dbg(rtlpriv, COMP_ERR, DBG_WARNING,
1253                         "EEPROM ID(%#x) is invalid!!\n", eeprom_id);
1254                 rtlefuse->autoload_failflag = true;
1255         } else {
1256                 rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD, "Autoload OK\n");
1257                 rtlefuse->autoload_failflag = false;
1258         }
1259
1260         if (rtlefuse->autoload_failflag)
1261                 return 1;
1262
1263         rtlefuse->eeprom_vid = *(u16 *)&hwinfo[params[1]];
1264         rtlefuse->eeprom_did = *(u16 *)&hwinfo[params[2]];
1265         rtlefuse->eeprom_svid = *(u16 *)&hwinfo[params[3]];
1266         rtlefuse->eeprom_smid = *(u16 *)&hwinfo[params[4]];
1267         rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD,
1268                 "EEPROMId = 0x%4x\n", eeprom_id);
1269         rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD,
1270                 "EEPROM VID = 0x%4x\n", rtlefuse->eeprom_vid);
1271         rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD,
1272                 "EEPROM DID = 0x%4x\n", rtlefuse->eeprom_did);
1273         rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD,
1274                 "EEPROM SVID = 0x%4x\n", rtlefuse->eeprom_svid);
1275         rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD,
1276                 "EEPROM SMID = 0x%4x\n", rtlefuse->eeprom_smid);
1277
1278         for (i = 0; i < 6; i += 2) {
1279                 usvalue = *(u16 *)&hwinfo[params[5] + i];
1280                 *((u16 *)(&rtlefuse->dev_addr[i])) = usvalue;
1281         }
1282         rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG, "%pM\n", rtlefuse->dev_addr);
1283
1284         rtlefuse->eeprom_channelplan = *&hwinfo[params[6]];
1285         rtlefuse->eeprom_version = *(u16 *)&hwinfo[params[7]];
1286         rtlefuse->txpwr_fromeprom = true;
1287         rtlefuse->eeprom_oemid = *&hwinfo[params[8]];
1288
1289         rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD,
1290                 "EEPROM Customer ID: 0x%2x\n", rtlefuse->eeprom_oemid);
1291
1292         /* set channel plan to world wide 13 */
1293         rtlefuse->channel_plan = params[9];
1294
1295         return 0;
1296 }
1297 EXPORT_SYMBOL_GPL(rtl_get_hwinfo);
1298
1299 static void _rtl_fw_block_write_usb(struct ieee80211_hw *hw, u8 *buffer, u32 size)
1300 {
1301         struct rtl_priv *rtlpriv = rtl_priv(hw);
1302         u32 start = START_ADDRESS;
1303         u32 n;
1304
1305         while (size > 0) {
1306                 if (size >= 64)
1307                         n = 64;
1308                 else if (size >= 8)
1309                         n = 8;
1310                 else
1311                         n = 1;
1312
1313                 rtl_write_chunk(rtlpriv, start, n, buffer);
1314
1315                 start += n;
1316                 buffer += n;
1317                 size -= n;
1318         }
1319 }
1320
1321 void rtl_fw_block_write(struct ieee80211_hw *hw, u8 *buffer, u32 size)
1322 {
1323         struct rtl_priv *rtlpriv = rtl_priv(hw);
1324         u32 i;
1325
1326         if (rtlpriv->rtlhal.interface == INTF_PCI) {
1327                 for (i = 0; i < size; i++)
1328                         rtl_write_byte(rtlpriv, (START_ADDRESS + i),
1329                                        *(buffer + i));
1330         } else if (rtlpriv->rtlhal.interface == INTF_USB) {
1331                 _rtl_fw_block_write_usb(hw, buffer, size);
1332         }
1333 }
1334 EXPORT_SYMBOL_GPL(rtl_fw_block_write);
1335
1336 void rtl_fw_page_write(struct ieee80211_hw *hw, u32 page, u8 *buffer,
1337                        u32 size)
1338 {
1339         struct rtl_priv *rtlpriv = rtl_priv(hw);
1340         u8 value8;
1341         u8 u8page = (u8)(page & 0x07);
1342
1343         value8 = (rtl_read_byte(rtlpriv, REG_MCUFWDL + 2) & 0xF8) | u8page;
1344
1345         rtl_write_byte(rtlpriv, (REG_MCUFWDL + 2), value8);
1346         rtl_fw_block_write(hw, buffer, size);
1347 }
1348 EXPORT_SYMBOL_GPL(rtl_fw_page_write);
1349
1350 void rtl_fill_dummy(u8 *pfwbuf, u32 *pfwlen)
1351 {
1352         u32 fwlen = *pfwlen;
1353         u8 remain = (u8)(fwlen % 4);
1354
1355         remain = (remain == 0) ? 0 : (4 - remain);
1356
1357         while (remain > 0) {
1358                 pfwbuf[fwlen] = 0;
1359                 fwlen++;
1360                 remain--;
1361         }
1362
1363         *pfwlen = fwlen;
1364 }
1365 EXPORT_SYMBOL_GPL(rtl_fill_dummy);
1366
1367 void rtl_efuse_ops_init(struct ieee80211_hw *hw)
1368 {
1369         struct rtl_priv *rtlpriv = rtl_priv(hw);
1370
1371         rtlpriv->efuse.efuse_ops = &efuse_ops;
1372 }
1373 EXPORT_SYMBOL_GPL(rtl_efuse_ops_init);