linux/drivers/net/wireless/realtek/rtlwifi/efuse.c
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   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
   9static const u8 PGPKT_DATA_SIZE = 8;
  10static const int EFUSE_MAX_SIZE = 512;
  11
  12#define START_ADDRESS           0x1000
  13#define REG_MCUFWDL             0x0080
  14
  15static 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
  20static void efuse_shadow_read_1byte(struct ieee80211_hw *hw, u16 offset,
  21                                    u8 *value);
  22static void efuse_shadow_read_2byte(struct ieee80211_hw *hw, u16 offset,
  23                                    u16 *value);
  24static void efuse_shadow_read_4byte(struct ieee80211_hw *hw, u16 offset,
  25                                    u32 *value);
  26static void efuse_shadow_write_1byte(struct ieee80211_hw *hw, u16 offset,
  27                                     u8 value);
  28static void efuse_shadow_write_2byte(struct ieee80211_hw *hw, u16 offset,
  29                                     u16 value);
  30static void efuse_shadow_write_4byte(struct ieee80211_hw *hw, u16 offset,
  31                                     u32 value);
  32static int efuse_one_byte_write(struct ieee80211_hw *hw, u16 addr,
  33                                u8 data);
  34static void efuse_read_all_map(struct ieee80211_hw *hw, u8 *efuse);
  35static int efuse_pg_packet_read(struct ieee80211_hw *hw, u8 offset,
  36                                u8 *data);
  37static int efuse_pg_packet_write(struct ieee80211_hw *hw, u8 offset,
  38                                 u8 word_en, u8 *data);
  39static void efuse_word_enable_data_read(u8 word_en, u8 *sourdata,
  40                                        u8 *targetdata);
  41static u8 enable_efuse_data_write(struct ieee80211_hw *hw,
  42                                  u16 efuse_addr, u8 word_en, u8 *data);
  43static u16 efuse_get_current_size(struct ieee80211_hw *hw);
  44static u8 efuse_calculate_word_cnts(u8 word_en);
  45
  46void 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
  70u8 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}
 112EXPORT_SYMBOL(efuse_read_1byte);
 113
 114void 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
 162void read_efuse_byte(struct ieee80211_hw *hw, u16 _offset, u8 *pbuf)
 163{
 164        struct rtl_priv *rtlpriv = rtl_priv(hw);
 165        u32 value32;
 166        u8 readbyte;
 167        u16 retry;
 168
 169        rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 1,
 170                       (_offset & 0xff));
 171        readbyte = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2);
 172        rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2,
 173                       ((_offset >> 8) & 0x03) | (readbyte & 0xfc));
 174
 175        readbyte = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3);
 176        rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3,
 177                       (readbyte & 0x7f));
 178
 179        retry = 0;
 180        value32 = rtl_read_dword(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL]);
 181        while (!(((value32 >> 24) & 0xff) & 0x80) && (retry < 10000)) {
 182                value32 = rtl_read_dword(rtlpriv,
 183                                         rtlpriv->cfg->maps[EFUSE_CTRL]);
 184                retry++;
 185        }
 186
 187        udelay(50);
 188        value32 = rtl_read_dword(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL]);
 189
 190        *pbuf = (u8) (value32 & 0xff);
 191}
 192EXPORT_SYMBOL_GPL(read_efuse_byte);
 193
 194void read_efuse(struct ieee80211_hw *hw, u16 _offset, u16 _size_byte, u8 *pbuf)
 195{
 196        struct rtl_priv *rtlpriv = rtl_priv(hw);
 197        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 198        u8 *efuse_tbl;
 199        u8 rtemp8[1];
 200        u16 efuse_addr = 0;
 201        u8 offset, wren;
 202        u8 u1temp = 0;
 203        u16 i;
 204        u16 j;
 205        const u16 efuse_max_section =
 206                rtlpriv->cfg->maps[EFUSE_MAX_SECTION_MAP];
 207        const u32 efuse_len =
 208                rtlpriv->cfg->maps[EFUSE_REAL_CONTENT_SIZE];
 209        u16 **efuse_word;
 210        u16 efuse_utilized = 0;
 211        u8 efuse_usage;
 212
 213        if ((_offset + _size_byte) > rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]) {
 214                rtl_dbg(rtlpriv, COMP_EFUSE, DBG_LOUD,
 215                        "%s: Invalid offset(%#x) with read bytes(%#x)!!\n",
 216                        __func__, _offset, _size_byte);
 217                return;
 218        }
 219
 220        /* allocate memory for efuse_tbl and efuse_word */
 221        efuse_tbl = kzalloc(rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE],
 222                            GFP_ATOMIC);
 223        if (!efuse_tbl)
 224                return;
 225        efuse_word = kcalloc(EFUSE_MAX_WORD_UNIT, sizeof(u16 *), GFP_ATOMIC);
 226        if (!efuse_word)
 227                goto out;
 228        for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++) {
 229                efuse_word[i] = kcalloc(efuse_max_section, sizeof(u16),
 230                                        GFP_ATOMIC);
 231                if (!efuse_word[i])
 232                        goto done;
 233        }
 234
 235        for (i = 0; i < efuse_max_section; i++)
 236                for (j = 0; j < EFUSE_MAX_WORD_UNIT; j++)
 237                        efuse_word[j][i] = 0xFFFF;
 238
 239        read_efuse_byte(hw, efuse_addr, rtemp8);
 240        if (*rtemp8 != 0xFF) {
 241                efuse_utilized++;
 242                RTPRINT(rtlpriv, FEEPROM, EFUSE_READ_ALL,
 243                        "Addr=%d\n", efuse_addr);
 244                efuse_addr++;
 245        }
 246
 247        while ((*rtemp8 != 0xFF) && (efuse_addr < efuse_len)) {
 248                /*  Check PG header for section num.  */
 249                if ((*rtemp8 & 0x1F) == 0x0F) {/* extended header */
 250                        u1temp = ((*rtemp8 & 0xE0) >> 5);
 251                        read_efuse_byte(hw, efuse_addr, rtemp8);
 252
 253                        if ((*rtemp8 & 0x0F) == 0x0F) {
 254                                efuse_addr++;
 255                                read_efuse_byte(hw, efuse_addr, rtemp8);
 256
 257                                if (*rtemp8 != 0xFF &&
 258                                    (efuse_addr < efuse_len)) {
 259                                        efuse_addr++;
 260                                }
 261                                continue;
 262                        } else {
 263                                offset = ((*rtemp8 & 0xF0) >> 1) | u1temp;
 264                                wren = (*rtemp8 & 0x0F);
 265                                efuse_addr++;
 266                        }
 267                } else {
 268                        offset = ((*rtemp8 >> 4) & 0x0f);
 269                        wren = (*rtemp8 & 0x0f);
 270                }
 271
 272                if (offset < efuse_max_section) {
 273                        RTPRINT(rtlpriv, FEEPROM, EFUSE_READ_ALL,
 274                                "offset-%d Worden=%x\n", offset, wren);
 275
 276                        for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++) {
 277                                if (!(wren & 0x01)) {
 278                                        RTPRINT(rtlpriv, FEEPROM,
 279                                                EFUSE_READ_ALL,
 280                                                "Addr=%d\n", efuse_addr);
 281
 282                                        read_efuse_byte(hw, efuse_addr, rtemp8);
 283                                        efuse_addr++;
 284                                        efuse_utilized++;
 285                                        efuse_word[i][offset] =
 286                                                         (*rtemp8 & 0xff);
 287
 288                                        if (efuse_addr >= efuse_len)
 289                                                break;
 290
 291                                        RTPRINT(rtlpriv, FEEPROM,
 292                                                EFUSE_READ_ALL,
 293                                                "Addr=%d\n", efuse_addr);
 294
 295                                        read_efuse_byte(hw, efuse_addr, rtemp8);
 296                                        efuse_addr++;
 297                                        efuse_utilized++;
 298                                        efuse_word[i][offset] |=
 299                                            (((u16)*rtemp8 << 8) & 0xff00);
 300
 301                                        if (efuse_addr >= efuse_len)
 302                                                break;
 303                                }
 304
 305                                wren >>= 1;
 306                        }
 307                }
 308
 309                RTPRINT(rtlpriv, FEEPROM, EFUSE_READ_ALL,
 310                        "Addr=%d\n", efuse_addr);
 311                read_efuse_byte(hw, efuse_addr, rtemp8);
 312                if (*rtemp8 != 0xFF && (efuse_addr < efuse_len)) {
 313                        efuse_utilized++;
 314                        efuse_addr++;
 315                }
 316        }
 317
 318        for (i = 0; i < efuse_max_section; i++) {
 319                for (j = 0; j < EFUSE_MAX_WORD_UNIT; j++) {
 320                        efuse_tbl[(i * 8) + (j * 2)] =
 321                            (efuse_word[j][i] & 0xff);
 322                        efuse_tbl[(i * 8) + ((j * 2) + 1)] =
 323                            ((efuse_word[j][i] >> 8) & 0xff);
 324                }
 325        }
 326
 327        for (i = 0; i < _size_byte; i++)
 328                pbuf[i] = efuse_tbl[_offset + i];
 329
 330        rtlefuse->efuse_usedbytes = efuse_utilized;
 331        efuse_usage = (u8) ((efuse_utilized * 100) / efuse_len);
 332        rtlefuse->efuse_usedpercentage = efuse_usage;
 333        rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_EFUSE_BYTES,
 334                                      (u8 *)&efuse_utilized);
 335        rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_EFUSE_USAGE,
 336                                      &efuse_usage);
 337done:
 338        for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++)
 339                kfree(efuse_word[i]);
 340        kfree(efuse_word);
 341out:
 342        kfree(efuse_tbl);
 343}
 344
 345bool efuse_shadow_update_chk(struct ieee80211_hw *hw)
 346{
 347        struct rtl_priv *rtlpriv = rtl_priv(hw);
 348        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 349        u8 section_idx, i, base;
 350        u16 words_need = 0, hdr_num = 0, totalbytes, efuse_used;
 351        bool wordchanged, result = true;
 352
 353        for (section_idx = 0; section_idx < 16; section_idx++) {
 354                base = section_idx * 8;
 355                wordchanged = false;
 356
 357                for (i = 0; i < 8; i = i + 2) {
 358                        if (rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i] !=
 359                            rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i] ||
 360                            rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i + 1] !=
 361                            rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i +
 362                                                                   1]) {
 363                                words_need++;
 364                                wordchanged = true;
 365                        }
 366                }
 367
 368                if (wordchanged)
 369                        hdr_num++;
 370        }
 371
 372        totalbytes = hdr_num + words_need * 2;
 373        efuse_used = rtlefuse->efuse_usedbytes;
 374
 375        if ((totalbytes + efuse_used) >=
 376            (EFUSE_MAX_SIZE - rtlpriv->cfg->maps[EFUSE_OOB_PROTECT_BYTES_LEN]))
 377                result = false;
 378
 379        rtl_dbg(rtlpriv, COMP_EFUSE, DBG_LOUD,
 380                "%s: totalbytes(%#x), hdr_num(%#x), words_need(%#x), efuse_used(%d)\n",
 381                __func__, totalbytes, hdr_num, words_need, efuse_used);
 382
 383        return result;
 384}
 385
 386void efuse_shadow_read(struct ieee80211_hw *hw, u8 type,
 387                       u16 offset, u32 *value)
 388{
 389        if (type == 1)
 390                efuse_shadow_read_1byte(hw, offset, (u8 *)value);
 391        else if (type == 2)
 392                efuse_shadow_read_2byte(hw, offset, (u16 *)value);
 393        else if (type == 4)
 394                efuse_shadow_read_4byte(hw, offset, value);
 395
 396}
 397EXPORT_SYMBOL(efuse_shadow_read);
 398
 399void efuse_shadow_write(struct ieee80211_hw *hw, u8 type, u16 offset,
 400                                u32 value)
 401{
 402        if (type == 1)
 403                efuse_shadow_write_1byte(hw, offset, (u8) value);
 404        else if (type == 2)
 405                efuse_shadow_write_2byte(hw, offset, (u16) value);
 406        else if (type == 4)
 407                efuse_shadow_write_4byte(hw, offset, value);
 408
 409}
 410
 411bool efuse_shadow_update(struct ieee80211_hw *hw)
 412{
 413        struct rtl_priv *rtlpriv = rtl_priv(hw);
 414        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 415        u16 i, offset, base;
 416        u8 word_en = 0x0F;
 417        u8 first_pg = false;
 418
 419        rtl_dbg(rtlpriv, COMP_EFUSE, DBG_LOUD, "\n");
 420
 421        if (!efuse_shadow_update_chk(hw)) {
 422                efuse_read_all_map(hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0]);
 423                memcpy(&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
 424                       &rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
 425                       rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]);
 426
 427                rtl_dbg(rtlpriv, COMP_EFUSE, DBG_LOUD,
 428                        "efuse out of capacity!!\n");
 429                return false;
 430        }
 431        efuse_power_switch(hw, true, true);
 432
 433        for (offset = 0; offset < 16; offset++) {
 434
 435                word_en = 0x0F;
 436                base = offset * 8;
 437
 438                for (i = 0; i < 8; i++) {
 439                        if (first_pg) {
 440                                word_en &= ~(BIT(i / 2));
 441
 442                                rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i] =
 443                                    rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i];
 444                        } else {
 445
 446                                if (rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i] !=
 447                                    rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i]) {
 448                                        word_en &= ~(BIT(i / 2));
 449
 450                                        rtlefuse->efuse_map[EFUSE_INIT_MAP][base + i] =
 451                                            rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base + i];
 452                                }
 453                        }
 454                }
 455
 456                if (word_en != 0x0F) {
 457                        u8 tmpdata[8];
 458
 459                        memcpy(tmpdata,
 460                               &rtlefuse->efuse_map[EFUSE_MODIFY_MAP][base],
 461                               8);
 462                        RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_LOUD,
 463                                      "U-efuse\n", tmpdata, 8);
 464
 465                        if (!efuse_pg_packet_write(hw, (u8) offset, word_en,
 466                                                   tmpdata)) {
 467                                rtl_dbg(rtlpriv, COMP_ERR, DBG_WARNING,
 468                                        "PG section(%#x) fail!!\n", offset);
 469                                break;
 470                        }
 471                }
 472        }
 473
 474        efuse_power_switch(hw, true, false);
 475        efuse_read_all_map(hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0]);
 476
 477        memcpy(&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
 478               &rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
 479               rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]);
 480
 481        rtl_dbg(rtlpriv, COMP_EFUSE, DBG_LOUD, "\n");
 482        return true;
 483}
 484
 485void rtl_efuse_shadow_map_update(struct ieee80211_hw *hw)
 486{
 487        struct rtl_priv *rtlpriv = rtl_priv(hw);
 488        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 489
 490        if (rtlefuse->autoload_failflag)
 491                memset((&rtlefuse->efuse_map[EFUSE_INIT_MAP][0]),
 492                       0xFF, rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]);
 493        else
 494                efuse_read_all_map(hw, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0]);
 495
 496        memcpy(&rtlefuse->efuse_map[EFUSE_MODIFY_MAP][0],
 497                        &rtlefuse->efuse_map[EFUSE_INIT_MAP][0],
 498                        rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE]);
 499
 500}
 501EXPORT_SYMBOL(rtl_efuse_shadow_map_update);
 502
 503void efuse_force_write_vendor_id(struct ieee80211_hw *hw)
 504{
 505        u8 tmpdata[8] = { 0xFF, 0xFF, 0xEC, 0x10, 0xFF, 0xFF, 0xFF, 0xFF };
 506
 507        efuse_power_switch(hw, true, true);
 508
 509        efuse_pg_packet_write(hw, 1, 0xD, tmpdata);
 510
 511        efuse_power_switch(hw, true, false);
 512
 513}
 514
 515void efuse_re_pg_section(struct ieee80211_hw *hw, u8 section_idx)
 516{
 517}
 518
 519static void efuse_shadow_read_1byte(struct ieee80211_hw *hw,
 520                                    u16 offset, u8 *value)
 521{
 522        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 523        *value = rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset];
 524}
 525
 526static void efuse_shadow_read_2byte(struct ieee80211_hw *hw,
 527                                    u16 offset, u16 *value)
 528{
 529        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 530
 531        *value = rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset];
 532        *value |= rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 1] << 8;
 533
 534}
 535
 536static void efuse_shadow_read_4byte(struct ieee80211_hw *hw,
 537                                    u16 offset, u32 *value)
 538{
 539        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 540
 541        *value = rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset];
 542        *value |= rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 1] << 8;
 543        *value |= rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 2] << 16;
 544        *value |= rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 3] << 24;
 545}
 546
 547static void efuse_shadow_write_1byte(struct ieee80211_hw *hw,
 548                                     u16 offset, u8 value)
 549{
 550        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 551
 552        rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset] = value;
 553}
 554
 555static void efuse_shadow_write_2byte(struct ieee80211_hw *hw,
 556                                     u16 offset, u16 value)
 557{
 558        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 559
 560        rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset] = value & 0x00FF;
 561        rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 1] = value >> 8;
 562
 563}
 564
 565static void efuse_shadow_write_4byte(struct ieee80211_hw *hw,
 566                                     u16 offset, u32 value)
 567{
 568        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
 569
 570        rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset] =
 571            (u8) (value & 0x000000FF);
 572        rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 1] =
 573            (u8) ((value >> 8) & 0x0000FF);
 574        rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 2] =
 575            (u8) ((value >> 16) & 0x00FF);
 576        rtlefuse->efuse_map[EFUSE_MODIFY_MAP][offset + 3] =
 577            (u8) ((value >> 24) & 0xFF);
 578
 579}
 580
 581int efuse_one_byte_read(struct ieee80211_hw *hw, u16 addr, u8 *data)
 582{
 583        struct rtl_priv *rtlpriv = rtl_priv(hw);
 584        u8 tmpidx = 0;
 585        int result;
 586
 587        rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 1,
 588                       (u8) (addr & 0xff));
 589        rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2,
 590                       ((u8) ((addr >> 8) & 0x03)) |
 591                       (rtl_read_byte(rtlpriv,
 592                                      rtlpriv->cfg->maps[EFUSE_CTRL] + 2) &
 593                        0xFC));
 594
 595        rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3, 0x72);
 596
 597        while (!(0x80 & rtl_read_byte(rtlpriv,
 598                                      rtlpriv->cfg->maps[EFUSE_CTRL] + 3))
 599               && (tmpidx < 100)) {
 600                tmpidx++;
 601        }
 602
 603        if (tmpidx < 100) {
 604                *data = rtl_read_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL]);
 605                result = true;
 606        } else {
 607                *data = 0xff;
 608                result = false;
 609        }
 610        return result;
 611}
 612EXPORT_SYMBOL(efuse_one_byte_read);
 613
 614static int efuse_one_byte_write(struct ieee80211_hw *hw, u16 addr, u8 data)
 615{
 616        struct rtl_priv *rtlpriv = rtl_priv(hw);
 617        u8 tmpidx = 0;
 618
 619        rtl_dbg(rtlpriv, COMP_EFUSE, DBG_LOUD,
 620                "Addr = %x Data=%x\n", addr, data);
 621
 622        rtl_write_byte(rtlpriv,
 623                       rtlpriv->cfg->maps[EFUSE_CTRL] + 1, (u8) (addr & 0xff));
 624        rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 2,
 625                       (rtl_read_byte(rtlpriv,
 626                         rtlpriv->cfg->maps[EFUSE_CTRL] +
 627                         2) & 0xFC) | (u8) ((addr >> 8) & 0x03));
 628
 629        rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL], data);
 630        rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CTRL] + 3, 0xF2);
 631
 632        while ((0x80 & rtl_read_byte(rtlpriv,
 633                                     rtlpriv->cfg->maps[EFUSE_CTRL] + 3))
 634               && (tmpidx < 100)) {
 635                tmpidx++;
 636        }
 637
 638        if (tmpidx < 100)
 639                return true;
 640        return false;
 641}
 642
 643static void efuse_read_all_map(struct ieee80211_hw *hw, u8 *efuse)
 644{
 645        struct rtl_priv *rtlpriv = rtl_priv(hw);
 646
 647        efuse_power_switch(hw, false, true);
 648        read_efuse(hw, 0, rtlpriv->cfg->maps[EFUSE_HWSET_MAX_SIZE], efuse);
 649        efuse_power_switch(hw, false, false);
 650}
 651
 652static void efuse_read_data_case1(struct ieee80211_hw *hw, u16 *efuse_addr,
 653                                u8 efuse_data, u8 offset, u8 *tmpdata,
 654                                u8 *readstate)
 655{
 656        bool dataempty = true;
 657        u8 hoffset;
 658        u8 tmpidx;
 659        u8 hworden;
 660        u8 word_cnts;
 661
 662        hoffset = (efuse_data >> 4) & 0x0F;
 663        hworden = efuse_data & 0x0F;
 664        word_cnts = efuse_calculate_word_cnts(hworden);
 665
 666        if (hoffset == offset) {
 667                for (tmpidx = 0; tmpidx < word_cnts * 2; tmpidx++) {
 668                        if (efuse_one_byte_read(hw, *efuse_addr + 1 + tmpidx,
 669                                                &efuse_data)) {
 670                                tmpdata[tmpidx] = efuse_data;
 671                                if (efuse_data != 0xff)
 672                                        dataempty = false;
 673                        }
 674                }
 675
 676                if (!dataempty) {
 677                        *readstate = PG_STATE_DATA;
 678                } else {
 679                        *efuse_addr = *efuse_addr + (word_cnts * 2) + 1;
 680                        *readstate = PG_STATE_HEADER;
 681                }
 682
 683        } else {
 684                *efuse_addr = *efuse_addr + (word_cnts * 2) + 1;
 685                *readstate = PG_STATE_HEADER;
 686        }
 687}
 688
 689static int efuse_pg_packet_read(struct ieee80211_hw *hw, u8 offset, u8 *data)
 690{
 691        u8 readstate = PG_STATE_HEADER;
 692
 693        bool continual = true;
 694
 695        u8 efuse_data, word_cnts = 0;
 696        u16 efuse_addr = 0;
 697        u8 tmpdata[8];
 698
 699        if (data == NULL)
 700                return false;
 701        if (offset > 15)
 702                return false;
 703
 704        memset(data, 0xff, PGPKT_DATA_SIZE * sizeof(u8));
 705        memset(tmpdata, 0xff, PGPKT_DATA_SIZE * sizeof(u8));
 706
 707        while (continual && (efuse_addr < EFUSE_MAX_SIZE)) {
 708                if (readstate & PG_STATE_HEADER) {
 709                        if (efuse_one_byte_read(hw, efuse_addr, &efuse_data)
 710                            && (efuse_data != 0xFF))
 711                                efuse_read_data_case1(hw, &efuse_addr,
 712                                                      efuse_data, offset,
 713                                                      tmpdata, &readstate);
 714                        else
 715                                continual = false;
 716                } else if (readstate & PG_STATE_DATA) {
 717                        efuse_word_enable_data_read(0, tmpdata, data);
 718                        efuse_addr = efuse_addr + (word_cnts * 2) + 1;
 719                        readstate = PG_STATE_HEADER;
 720                }
 721
 722        }
 723
 724        if ((data[0] == 0xff) && (data[1] == 0xff) &&
 725            (data[2] == 0xff) && (data[3] == 0xff) &&
 726            (data[4] == 0xff) && (data[5] == 0xff) &&
 727            (data[6] == 0xff) && (data[7] == 0xff))
 728                return false;
 729        else
 730                return true;
 731
 732}
 733
 734static void efuse_write_data_case1(struct ieee80211_hw *hw, u16 *efuse_addr,
 735                                   u8 efuse_data, u8 offset,
 736                                   int *continual, u8 *write_state,
 737                                   struct pgpkt_struct *target_pkt,
 738                                   int *repeat_times, int *result, u8 word_en)
 739{
 740        struct rtl_priv *rtlpriv = rtl_priv(hw);
 741        struct pgpkt_struct tmp_pkt;
 742        int dataempty = true;
 743        u8 originaldata[8 * sizeof(u8)];
 744        u8 badworden = 0x0F;
 745        u8 match_word_en, tmp_word_en;
 746        u8 tmpindex;
 747        u8 tmp_header = efuse_data;
 748        u8 tmp_word_cnts;
 749
 750        tmp_pkt.offset = (tmp_header >> 4) & 0x0F;
 751        tmp_pkt.word_en = tmp_header & 0x0F;
 752        tmp_word_cnts = efuse_calculate_word_cnts(tmp_pkt.word_en);
 753
 754        if (tmp_pkt.offset != target_pkt->offset) {
 755                *efuse_addr = *efuse_addr + (tmp_word_cnts * 2) + 1;
 756                *write_state = PG_STATE_HEADER;
 757        } else {
 758                for (tmpindex = 0; tmpindex < (tmp_word_cnts * 2); tmpindex++) {
 759                        if (efuse_one_byte_read(hw,
 760                                                (*efuse_addr + 1 + tmpindex),
 761                                                &efuse_data) &&
 762                            (efuse_data != 0xFF))
 763                                dataempty = false;
 764                }
 765
 766                if (!dataempty) {
 767                        *efuse_addr = *efuse_addr + (tmp_word_cnts * 2) + 1;
 768                        *write_state = PG_STATE_HEADER;
 769                } else {
 770                        match_word_en = 0x0F;
 771                        if (!((target_pkt->word_en & BIT(0)) |
 772                            (tmp_pkt.word_en & BIT(0))))
 773                                match_word_en &= (~BIT(0));
 774
 775                        if (!((target_pkt->word_en & BIT(1)) |
 776                            (tmp_pkt.word_en & BIT(1))))
 777                                match_word_en &= (~BIT(1));
 778
 779                        if (!((target_pkt->word_en & BIT(2)) |
 780                            (tmp_pkt.word_en & BIT(2))))
 781                                match_word_en &= (~BIT(2));
 782
 783                        if (!((target_pkt->word_en & BIT(3)) |
 784                            (tmp_pkt.word_en & BIT(3))))
 785                                match_word_en &= (~BIT(3));
 786
 787                        if ((match_word_en & 0x0F) != 0x0F) {
 788                                badworden =
 789                                  enable_efuse_data_write(hw,
 790                                                          *efuse_addr + 1,
 791                                                          tmp_pkt.word_en,
 792                                                          target_pkt->data);
 793
 794                                if (0x0F != (badworden & 0x0F)) {
 795                                        u8 reorg_offset = offset;
 796                                        u8 reorg_worden = badworden;
 797
 798                                        efuse_pg_packet_write(hw, reorg_offset,
 799                                                              reorg_worden,
 800                                                              originaldata);
 801                                }
 802
 803                                tmp_word_en = 0x0F;
 804                                if ((target_pkt->word_en & BIT(0)) ^
 805                                    (match_word_en & BIT(0)))
 806                                        tmp_word_en &= (~BIT(0));
 807
 808                                if ((target_pkt->word_en & BIT(1)) ^
 809                                    (match_word_en & BIT(1)))
 810                                        tmp_word_en &= (~BIT(1));
 811
 812                                if ((target_pkt->word_en & BIT(2)) ^
 813                                    (match_word_en & BIT(2)))
 814                                        tmp_word_en &= (~BIT(2));
 815
 816                                if ((target_pkt->word_en & BIT(3)) ^
 817                                    (match_word_en & BIT(3)))
 818                                        tmp_word_en &= (~BIT(3));
 819
 820                                if ((tmp_word_en & 0x0F) != 0x0F) {
 821                                        *efuse_addr = efuse_get_current_size(hw);
 822                                        target_pkt->offset = offset;
 823                                        target_pkt->word_en = tmp_word_en;
 824                                } else {
 825                                        *continual = false;
 826                                }
 827                                *write_state = PG_STATE_HEADER;
 828                                *repeat_times += 1;
 829                                if (*repeat_times > EFUSE_REPEAT_THRESHOLD_) {
 830                                        *continual = false;
 831                                        *result = false;
 832                                }
 833                        } else {
 834                                *efuse_addr += (2 * tmp_word_cnts) + 1;
 835                                target_pkt->offset = offset;
 836                                target_pkt->word_en = word_en;
 837                                *write_state = PG_STATE_HEADER;
 838                        }
 839                }
 840        }
 841        RTPRINT(rtlpriv, FEEPROM, EFUSE_PG, "efuse PG_STATE_HEADER-1\n");
 842}
 843
 844static void efuse_write_data_case2(struct ieee80211_hw *hw, u16 *efuse_addr,
 845                                   int *continual, u8 *write_state,
 846                                   struct pgpkt_struct target_pkt,
 847                                   int *repeat_times, int *result)
 848{
 849        struct rtl_priv *rtlpriv = rtl_priv(hw);
 850        struct pgpkt_struct tmp_pkt;
 851        u8 pg_header;
 852        u8 tmp_header;
 853        u8 originaldata[8 * sizeof(u8)];
 854        u8 tmp_word_cnts;
 855        u8 badworden = 0x0F;
 856
 857        pg_header = ((target_pkt.offset << 4) & 0xf0) | target_pkt.word_en;
 858        efuse_one_byte_write(hw, *efuse_addr, pg_header);
 859        efuse_one_byte_read(hw, *efuse_addr, &tmp_header);
 860
 861        if (tmp_header == pg_header) {
 862                *write_state = PG_STATE_DATA;
 863        } else if (tmp_header == 0xFF) {
 864                *write_state = PG_STATE_HEADER;
 865                *repeat_times += 1;
 866                if (*repeat_times > EFUSE_REPEAT_THRESHOLD_) {
 867                        *continual = false;
 868                        *result = false;
 869                }
 870        } else {
 871                tmp_pkt.offset = (tmp_header >> 4) & 0x0F;
 872                tmp_pkt.word_en = tmp_header & 0x0F;
 873
 874                tmp_word_cnts = efuse_calculate_word_cnts(tmp_pkt.word_en);
 875
 876                memset(originaldata, 0xff,  8 * sizeof(u8));
 877
 878                if (efuse_pg_packet_read(hw, tmp_pkt.offset, originaldata)) {
 879                        badworden = enable_efuse_data_write(hw,
 880                                                            *efuse_addr + 1,
 881                                                            tmp_pkt.word_en,
 882                                                            originaldata);
 883
 884                        if (0x0F != (badworden & 0x0F)) {
 885                                u8 reorg_offset = tmp_pkt.offset;
 886                                u8 reorg_worden = badworden;
 887
 888                                efuse_pg_packet_write(hw, reorg_offset,
 889                                                      reorg_worden,
 890                                                      originaldata);
 891                                *efuse_addr = efuse_get_current_size(hw);
 892                        } else {
 893                                *efuse_addr = *efuse_addr +
 894                                              (tmp_word_cnts * 2) + 1;
 895                        }
 896                } else {
 897                        *efuse_addr = *efuse_addr + (tmp_word_cnts * 2) + 1;
 898                }
 899
 900                *write_state = PG_STATE_HEADER;
 901                *repeat_times += 1;
 902                if (*repeat_times > EFUSE_REPEAT_THRESHOLD_) {
 903                        *continual = false;
 904                        *result = false;
 905                }
 906
 907                RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,
 908                        "efuse PG_STATE_HEADER-2\n");
 909        }
 910}
 911
 912static int efuse_pg_packet_write(struct ieee80211_hw *hw,
 913                                 u8 offset, u8 word_en, u8 *data)
 914{
 915        struct rtl_priv *rtlpriv = rtl_priv(hw);
 916        struct pgpkt_struct target_pkt;
 917        u8 write_state = PG_STATE_HEADER;
 918        int continual = true, result = true;
 919        u16 efuse_addr = 0;
 920        u8 efuse_data;
 921        u8 target_word_cnts = 0;
 922        u8 badworden = 0x0F;
 923        static int repeat_times;
 924
 925        if (efuse_get_current_size(hw) >= (EFUSE_MAX_SIZE -
 926                rtlpriv->cfg->maps[EFUSE_OOB_PROTECT_BYTES_LEN])) {
 927                RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,
 928                        "efuse_pg_packet_write error\n");
 929                return false;
 930        }
 931
 932        target_pkt.offset = offset;
 933        target_pkt.word_en = word_en;
 934
 935        memset(target_pkt.data, 0xFF,  8 * sizeof(u8));
 936
 937        efuse_word_enable_data_read(word_en, data, target_pkt.data);
 938        target_word_cnts = efuse_calculate_word_cnts(target_pkt.word_en);
 939
 940        RTPRINT(rtlpriv, FEEPROM, EFUSE_PG, "efuse Power ON\n");
 941
 942        while (continual && (efuse_addr < (EFUSE_MAX_SIZE -
 943                rtlpriv->cfg->maps[EFUSE_OOB_PROTECT_BYTES_LEN]))) {
 944                if (write_state == PG_STATE_HEADER) {
 945                        badworden = 0x0F;
 946                        RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,
 947                                "efuse PG_STATE_HEADER\n");
 948
 949                        if (efuse_one_byte_read(hw, efuse_addr, &efuse_data) &&
 950                            (efuse_data != 0xFF))
 951                                efuse_write_data_case1(hw, &efuse_addr,
 952                                                       efuse_data, offset,
 953                                                       &continual,
 954                                                       &write_state,
 955                                                       &target_pkt,
 956                                                       &repeat_times, &result,
 957                                                       word_en);
 958                        else
 959                                efuse_write_data_case2(hw, &efuse_addr,
 960                                                       &continual,
 961                                                       &write_state,
 962                                                       target_pkt,
 963                                                       &repeat_times,
 964                                                       &result);
 965
 966                } else if (write_state == PG_STATE_DATA) {
 967                        RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,
 968                                "efuse PG_STATE_DATA\n");
 969                        badworden =
 970                            enable_efuse_data_write(hw, efuse_addr + 1,
 971                                                    target_pkt.word_en,
 972                                                    target_pkt.data);
 973
 974                        if ((badworden & 0x0F) == 0x0F) {
 975                                continual = false;
 976                        } else {
 977                                efuse_addr =
 978                                    efuse_addr + (2 * target_word_cnts) + 1;
 979
 980                                target_pkt.offset = offset;
 981                                target_pkt.word_en = badworden;
 982                                target_word_cnts =
 983                                    efuse_calculate_word_cnts(target_pkt.
 984                                                              word_en);
 985                                write_state = PG_STATE_HEADER;
 986                                repeat_times++;
 987                                if (repeat_times > EFUSE_REPEAT_THRESHOLD_) {
 988                                        continual = false;
 989                                        result = false;
 990                                }
 991                                RTPRINT(rtlpriv, FEEPROM, EFUSE_PG,
 992                                        "efuse PG_STATE_HEADER-3\n");
 993                        }
 994                }
 995        }
 996
 997        if (efuse_addr >= (EFUSE_MAX_SIZE -
 998                rtlpriv->cfg->maps[EFUSE_OOB_PROTECT_BYTES_LEN])) {
 999                rtl_dbg(rtlpriv, COMP_EFUSE, DBG_LOUD,
1000                        "efuse_addr(%#x) Out of size!!\n", efuse_addr);
1001        }
1002
1003        return true;
1004}
1005
1006static void efuse_word_enable_data_read(u8 word_en, u8 *sourdata,
1007                                        u8 *targetdata)
1008{
1009        if (!(word_en & BIT(0))) {
1010                targetdata[0] = sourdata[0];
1011                targetdata[1] = sourdata[1];
1012        }
1013
1014        if (!(word_en & BIT(1))) {
1015                targetdata[2] = sourdata[2];
1016                targetdata[3] = sourdata[3];
1017        }
1018
1019        if (!(word_en & BIT(2))) {
1020                targetdata[4] = sourdata[4];
1021                targetdata[5] = sourdata[5];
1022        }
1023
1024        if (!(word_en & BIT(3))) {
1025                targetdata[6] = sourdata[6];
1026                targetdata[7] = sourdata[7];
1027        }
1028}
1029
1030static u8 enable_efuse_data_write(struct ieee80211_hw *hw,
1031                                  u16 efuse_addr, u8 word_en, u8 *data)
1032{
1033        struct rtl_priv *rtlpriv = rtl_priv(hw);
1034        u16 tmpaddr;
1035        u16 start_addr = efuse_addr;
1036        u8 badworden = 0x0F;
1037        u8 tmpdata[8];
1038
1039        memset(tmpdata, 0xff, PGPKT_DATA_SIZE);
1040        rtl_dbg(rtlpriv, COMP_EFUSE, DBG_LOUD,
1041                "word_en = %x efuse_addr=%x\n", word_en, efuse_addr);
1042
1043        if (!(word_en & BIT(0))) {
1044                tmpaddr = start_addr;
1045                efuse_one_byte_write(hw, start_addr++, data[0]);
1046                efuse_one_byte_write(hw, start_addr++, data[1]);
1047
1048                efuse_one_byte_read(hw, tmpaddr, &tmpdata[0]);
1049                efuse_one_byte_read(hw, tmpaddr + 1, &tmpdata[1]);
1050                if ((data[0] != tmpdata[0]) || (data[1] != tmpdata[1]))
1051                        badworden &= (~BIT(0));
1052        }
1053
1054        if (!(word_en & BIT(1))) {
1055                tmpaddr = start_addr;
1056                efuse_one_byte_write(hw, start_addr++, data[2]);
1057                efuse_one_byte_write(hw, start_addr++, data[3]);
1058
1059                efuse_one_byte_read(hw, tmpaddr, &tmpdata[2]);
1060                efuse_one_byte_read(hw, tmpaddr + 1, &tmpdata[3]);
1061                if ((data[2] != tmpdata[2]) || (data[3] != tmpdata[3]))
1062                        badworden &= (~BIT(1));
1063        }
1064
1065        if (!(word_en & BIT(2))) {
1066                tmpaddr = start_addr;
1067                efuse_one_byte_write(hw, start_addr++, data[4]);
1068                efuse_one_byte_write(hw, start_addr++, data[5]);
1069
1070                efuse_one_byte_read(hw, tmpaddr, &tmpdata[4]);
1071                efuse_one_byte_read(hw, tmpaddr + 1, &tmpdata[5]);
1072                if ((data[4] != tmpdata[4]) || (data[5] != tmpdata[5]))
1073                        badworden &= (~BIT(2));
1074        }
1075
1076        if (!(word_en & BIT(3))) {
1077                tmpaddr = start_addr;
1078                efuse_one_byte_write(hw, start_addr++, data[6]);
1079                efuse_one_byte_write(hw, start_addr++, data[7]);
1080
1081                efuse_one_byte_read(hw, tmpaddr, &tmpdata[6]);
1082                efuse_one_byte_read(hw, tmpaddr + 1, &tmpdata[7]);
1083                if ((data[6] != tmpdata[6]) || (data[7] != tmpdata[7]))
1084                        badworden &= (~BIT(3));
1085        }
1086
1087        return badworden;
1088}
1089
1090void efuse_power_switch(struct ieee80211_hw *hw, u8 write, u8 pwrstate)
1091{
1092        struct rtl_priv *rtlpriv = rtl_priv(hw);
1093        struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
1094        u8 tempval;
1095        u16 tmpv16;
1096
1097        if (pwrstate && (rtlhal->hw_type != HARDWARE_TYPE_RTL8192SE)) {
1098                if (rtlhal->hw_type != HARDWARE_TYPE_RTL8192CE &&
1099                    rtlhal->hw_type != HARDWARE_TYPE_RTL8192DE) {
1100                        rtl_write_byte(rtlpriv,
1101                                       rtlpriv->cfg->maps[EFUSE_ACCESS], 0x69);
1102                } else {
1103                        tmpv16 =
1104                          rtl_read_word(rtlpriv,
1105                                        rtlpriv->cfg->maps[SYS_ISO_CTRL]);
1106                        if (!(tmpv16 & rtlpriv->cfg->maps[EFUSE_PWC_EV12V])) {
1107                                tmpv16 |= rtlpriv->cfg->maps[EFUSE_PWC_EV12V];
1108                                rtl_write_word(rtlpriv,
1109                                               rtlpriv->cfg->maps[SYS_ISO_CTRL],
1110                                               tmpv16);
1111                        }
1112                }
1113                tmpv16 = rtl_read_word(rtlpriv,
1114                                       rtlpriv->cfg->maps[SYS_FUNC_EN]);
1115                if (!(tmpv16 & rtlpriv->cfg->maps[EFUSE_FEN_ELDR])) {
1116                        tmpv16 |= rtlpriv->cfg->maps[EFUSE_FEN_ELDR];
1117                        rtl_write_word(rtlpriv,
1118                                       rtlpriv->cfg->maps[SYS_FUNC_EN], tmpv16);
1119                }
1120
1121                tmpv16 = rtl_read_word(rtlpriv, rtlpriv->cfg->maps[SYS_CLK]);
1122                if ((!(tmpv16 & rtlpriv->cfg->maps[EFUSE_LOADER_CLK_EN])) ||
1123                    (!(tmpv16 & rtlpriv->cfg->maps[EFUSE_ANA8M]))) {
1124                        tmpv16 |= (rtlpriv->cfg->maps[EFUSE_LOADER_CLK_EN] |
1125                                   rtlpriv->cfg->maps[EFUSE_ANA8M]);
1126                        rtl_write_word(rtlpriv,
1127                                       rtlpriv->cfg->maps[SYS_CLK], tmpv16);
1128                }
1129        }
1130
1131        if (pwrstate) {
1132                if (write) {
1133                        tempval = rtl_read_byte(rtlpriv,
1134                                                rtlpriv->cfg->maps[EFUSE_TEST] +
1135                                                3);
1136
1137                        if (rtlhal->hw_type == HARDWARE_TYPE_RTL8812AE) {
1138                                tempval &= ~(BIT(3) | BIT(4) | BIT(5) | BIT(6));
1139                                tempval |= (VOLTAGE_V25 << 3);
1140                        } else 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        } else {
1155                if (rtlhal->hw_type != HARDWARE_TYPE_RTL8192CE &&
1156                    rtlhal->hw_type != HARDWARE_TYPE_RTL8192DE)
1157                        rtl_write_byte(rtlpriv,
1158                                       rtlpriv->cfg->maps[EFUSE_ACCESS], 0);
1159
1160                if (write) {
1161                        tempval = rtl_read_byte(rtlpriv,
1162                                                rtlpriv->cfg->maps[EFUSE_TEST] +
1163                                                3);
1164                        rtl_write_byte(rtlpriv,
1165                                       rtlpriv->cfg->maps[EFUSE_TEST] + 3,
1166                                       (tempval & 0x7F));
1167                }
1168
1169                if (rtlhal->hw_type == HARDWARE_TYPE_RTL8192SE) {
1170                        rtl_write_byte(rtlpriv, rtlpriv->cfg->maps[EFUSE_CLK],
1171                                       0x02);
1172                }
1173        }
1174}
1175EXPORT_SYMBOL(efuse_power_switch);
1176
1177static u16 efuse_get_current_size(struct ieee80211_hw *hw)
1178{
1179        int continual = true;
1180        u16 efuse_addr = 0;
1181        u8 hworden;
1182        u8 efuse_data, word_cnts;
1183
1184        while (continual && efuse_one_byte_read(hw, efuse_addr, &efuse_data) &&
1185               (efuse_addr < EFUSE_MAX_SIZE)) {
1186                if (efuse_data != 0xFF) {
1187                        hworden = efuse_data & 0x0F;
1188                        word_cnts = efuse_calculate_word_cnts(hworden);
1189                        efuse_addr = efuse_addr + (word_cnts * 2) + 1;
1190                } else {
1191                        continual = false;
1192                }
1193        }
1194
1195        return efuse_addr;
1196}
1197
1198static u8 efuse_calculate_word_cnts(u8 word_en)
1199{
1200        u8 word_cnts = 0;
1201
1202        if (!(word_en & BIT(0)))
1203                word_cnts++;
1204        if (!(word_en & BIT(1)))
1205                word_cnts++;
1206        if (!(word_en & BIT(2)))
1207                word_cnts++;
1208        if (!(word_en & BIT(3)))
1209                word_cnts++;
1210        return word_cnts;
1211}
1212
1213int rtl_get_hwinfo(struct ieee80211_hw *hw, struct rtl_priv *rtlpriv,
1214                   int max_size, u8 *hwinfo, int *params)
1215{
1216        struct rtl_efuse *rtlefuse = rtl_efuse(rtl_priv(hw));
1217        struct rtl_pci_priv *rtlpcipriv = rtl_pcipriv(hw);
1218        struct device *dev = &rtlpcipriv->dev.pdev->dev;
1219        u16 eeprom_id;
1220        u16 i, usvalue;
1221
1222        switch (rtlefuse->epromtype) {
1223        case EEPROM_BOOT_EFUSE:
1224                rtl_efuse_shadow_map_update(hw);
1225                break;
1226
1227        case EEPROM_93C46:
1228                pr_err("RTL8XXX did not boot from eeprom, check it !!\n");
1229                return 1;
1230
1231        default:
1232                dev_warn(dev, "no efuse data\n");
1233                return 1;
1234        }
1235
1236        memcpy(hwinfo, &rtlefuse->efuse_map[EFUSE_INIT_MAP][0], max_size);
1237
1238        RT_PRINT_DATA(rtlpriv, COMP_INIT, DBG_DMESG, "MAP",
1239                      hwinfo, max_size);
1240
1241        eeprom_id = *((u16 *)&hwinfo[0]);
1242        if (eeprom_id != params[0]) {
1243                rtl_dbg(rtlpriv, COMP_ERR, DBG_WARNING,
1244                        "EEPROM ID(%#x) is invalid!!\n", eeprom_id);
1245                rtlefuse->autoload_failflag = true;
1246        } else {
1247                rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD, "Autoload OK\n");
1248                rtlefuse->autoload_failflag = false;
1249        }
1250
1251        if (rtlefuse->autoload_failflag)
1252                return 1;
1253
1254        rtlefuse->eeprom_vid = *(u16 *)&hwinfo[params[1]];
1255        rtlefuse->eeprom_did = *(u16 *)&hwinfo[params[2]];
1256        rtlefuse->eeprom_svid = *(u16 *)&hwinfo[params[3]];
1257        rtlefuse->eeprom_smid = *(u16 *)&hwinfo[params[4]];
1258        rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD,
1259                "EEPROMId = 0x%4x\n", eeprom_id);
1260        rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD,
1261                "EEPROM VID = 0x%4x\n", rtlefuse->eeprom_vid);
1262        rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD,
1263                "EEPROM DID = 0x%4x\n", rtlefuse->eeprom_did);
1264        rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD,
1265                "EEPROM SVID = 0x%4x\n", rtlefuse->eeprom_svid);
1266        rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD,
1267                "EEPROM SMID = 0x%4x\n", rtlefuse->eeprom_smid);
1268
1269        for (i = 0; i < 6; i += 2) {
1270                usvalue = *(u16 *)&hwinfo[params[5] + i];
1271                *((u16 *)(&rtlefuse->dev_addr[i])) = usvalue;
1272        }
1273        rtl_dbg(rtlpriv, COMP_INIT, DBG_DMESG, "%pM\n", rtlefuse->dev_addr);
1274
1275        rtlefuse->eeprom_channelplan = *&hwinfo[params[6]];
1276        rtlefuse->eeprom_version = *(u16 *)&hwinfo[params[7]];
1277        rtlefuse->txpwr_fromeprom = true;
1278        rtlefuse->eeprom_oemid = *&hwinfo[params[8]];
1279
1280        rtl_dbg(rtlpriv, COMP_INIT, DBG_LOUD,
1281                "EEPROM Customer ID: 0x%2x\n", rtlefuse->eeprom_oemid);
1282
1283        /* set channel plan to world wide 13 */
1284        rtlefuse->channel_plan = params[9];
1285
1286        return 0;
1287}
1288EXPORT_SYMBOL_GPL(rtl_get_hwinfo);
1289
1290void rtl_fw_block_write(struct ieee80211_hw *hw, const u8 *buffer, u32 size)
1291{
1292        struct rtl_priv *rtlpriv = rtl_priv(hw);
1293        u8 *pu4byteptr = (u8 *)buffer;
1294        u32 i;
1295
1296        for (i = 0; i < size; i++)
1297                rtl_write_byte(rtlpriv, (START_ADDRESS + i), *(pu4byteptr + i));
1298}
1299EXPORT_SYMBOL_GPL(rtl_fw_block_write);
1300
1301void rtl_fw_page_write(struct ieee80211_hw *hw, u32 page, const u8 *buffer,
1302                       u32 size)
1303{
1304        struct rtl_priv *rtlpriv = rtl_priv(hw);
1305        u8 value8;
1306        u8 u8page = (u8)(page & 0x07);
1307
1308        value8 = (rtl_read_byte(rtlpriv, REG_MCUFWDL + 2) & 0xF8) | u8page;
1309
1310        rtl_write_byte(rtlpriv, (REG_MCUFWDL + 2), value8);
1311        rtl_fw_block_write(hw, buffer, size);
1312}
1313EXPORT_SYMBOL_GPL(rtl_fw_page_write);
1314
1315void rtl_fill_dummy(u8 *pfwbuf, u32 *pfwlen)
1316{
1317        u32 fwlen = *pfwlen;
1318        u8 remain = (u8)(fwlen % 4);
1319
1320        remain = (remain == 0) ? 0 : (4 - remain);
1321
1322        while (remain > 0) {
1323                pfwbuf[fwlen] = 0;
1324                fwlen++;
1325                remain--;
1326        }
1327
1328        *pfwlen = fwlen;
1329}
1330EXPORT_SYMBOL_GPL(rtl_fill_dummy);
1331
1332void rtl_efuse_ops_init(struct ieee80211_hw *hw)
1333{
1334        struct rtl_priv *rtlpriv = rtl_priv(hw);
1335
1336        rtlpriv->efuse.efuse_ops = &efuse_ops;
1337}
1338EXPORT_SYMBOL_GPL(rtl_efuse_ops_init);
1339